Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (229 commits)
USB: remove unused usb_buffer_alloc and usb_buffer_free macros
usb: musb: update gfp/slab.h includes
USB: ftdi_sio: fix legacy SIO-device header
USB: kl5usb105: reimplement using generic framework
USB: kl5usb105: minor clean ups
USB: kl5usb105: fix memory leak
USB: io_ti: use kfifo to implement write buffering
USB: io_ti: remove unsused private counter
USB: ti_usb: use kfifo to implement write buffering
USB: ir-usb: fix incorrect write-buffer length
USB: aircable: fix incorrect write-buffer length
USB: safe_serial: straighten out read processing
USB: safe_serial: reimplement read using generic framework
USB: safe_serial: reimplement write using generic framework
usb-storage: always print quirks
USB: usb-storage: trivial debug improvements
USB: oti6858: use port write fifo
USB: oti6858: use kfifo to implement write buffering
USB: cypress_m8: use kfifo to implement write buffering
USB: cypress_m8: remove unused drain define
...
Fix up conflicts (due to usb_buffer_alloc/free renaming) in
drivers/input/tablet/acecad.c
drivers/input/tablet/kbtab.c
drivers/input/tablet/wacom_sys.c
drivers/media/video/gspca/gspca.c
sound/usb/usbaudio.c
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 7b85b69..df61975 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -783,13 +783,12 @@
{
struct usbhid_device *usbhid = hid->driver_data;
- usbhid->inbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_KERNEL,
+ usbhid->inbuf = usb_alloc_coherent(dev, usbhid->bufsize, GFP_KERNEL,
&usbhid->inbuf_dma);
- usbhid->outbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_KERNEL,
+ usbhid->outbuf = usb_alloc_coherent(dev, usbhid->bufsize, GFP_KERNEL,
&usbhid->outbuf_dma);
- usbhid->cr = usb_buffer_alloc(dev, sizeof(*usbhid->cr), GFP_KERNEL,
- &usbhid->cr_dma);
- usbhid->ctrlbuf = usb_buffer_alloc(dev, usbhid->bufsize, GFP_KERNEL,
+ usbhid->cr = kmalloc(sizeof(*usbhid->cr), GFP_KERNEL);
+ usbhid->ctrlbuf = usb_alloc_coherent(dev, usbhid->bufsize, GFP_KERNEL,
&usbhid->ctrlbuf_dma);
if (!usbhid->inbuf || !usbhid->outbuf || !usbhid->cr ||
!usbhid->ctrlbuf)
@@ -844,10 +843,10 @@
{
struct usbhid_device *usbhid = hid->driver_data;
- usb_buffer_free(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma);
- usb_buffer_free(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma);
- usb_buffer_free(dev, sizeof(*(usbhid->cr)), usbhid->cr, usbhid->cr_dma);
- usb_buffer_free(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
+ usb_free_coherent(dev, usbhid->bufsize, usbhid->inbuf, usbhid->inbuf_dma);
+ usb_free_coherent(dev, usbhid->bufsize, usbhid->outbuf, usbhid->outbuf_dma);
+ kfree(usbhid->cr);
+ usb_free_coherent(dev, usbhid->bufsize, usbhid->ctrlbuf, usbhid->ctrlbuf_dma);
}
static int usbhid_parse(struct hid_device *hid)
@@ -1007,9 +1006,8 @@
usb_fill_control_urb(usbhid->urbctrl, dev, 0, (void *) usbhid->cr,
usbhid->ctrlbuf, 1, hid_ctrl, hid);
- usbhid->urbctrl->setup_dma = usbhid->cr_dma;
usbhid->urbctrl->transfer_dma = usbhid->ctrlbuf_dma;
- usbhid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
+ usbhid->urbctrl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
if (!(hid->quirks & HID_QUIRK_NO_INIT_REPORTS))
usbhid_init_reports(hid);
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index ec20400..693fd3e 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -75,7 +75,6 @@
struct urb *urbctrl; /* Control URB */
struct usb_ctrlrequest *cr; /* Control request struct */
- dma_addr_t cr_dma; /* Control request struct dma */
struct hid_control_fifo ctrl[HID_CONTROL_FIFO_SIZE]; /* Control fifo */
unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */
char *ctrlbuf; /* Control buffer */
diff --git a/drivers/hid/usbhid/usbkbd.c b/drivers/hid/usbhid/usbkbd.c
index f843443..bb14c82 100644
--- a/drivers/hid/usbhid/usbkbd.c
+++ b/drivers/hid/usbhid/usbkbd.c
@@ -74,7 +74,6 @@
unsigned char *new;
struct usb_ctrlrequest *cr;
unsigned char *leds;
- dma_addr_t cr_dma;
dma_addr_t new_dma;
dma_addr_t leds_dma;
};
@@ -197,11 +196,11 @@
return -1;
if (!(kbd->led = usb_alloc_urb(0, GFP_KERNEL)))
return -1;
- if (!(kbd->new = usb_buffer_alloc(dev, 8, GFP_ATOMIC, &kbd->new_dma)))
+ if (!(kbd->new = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &kbd->new_dma)))
return -1;
- if (!(kbd->cr = usb_buffer_alloc(dev, sizeof(struct usb_ctrlrequest), GFP_ATOMIC, &kbd->cr_dma)))
+ if (!(kbd->cr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL)))
return -1;
- if (!(kbd->leds = usb_buffer_alloc(dev, 1, GFP_ATOMIC, &kbd->leds_dma)))
+ if (!(kbd->leds = usb_alloc_coherent(dev, 1, GFP_ATOMIC, &kbd->leds_dma)))
return -1;
return 0;
@@ -211,9 +210,9 @@
{
usb_free_urb(kbd->irq);
usb_free_urb(kbd->led);
- usb_buffer_free(dev, 8, kbd->new, kbd->new_dma);
- usb_buffer_free(dev, sizeof(struct usb_ctrlrequest), kbd->cr, kbd->cr_dma);
- usb_buffer_free(dev, 1, kbd->leds, kbd->leds_dma);
+ usb_free_coherent(dev, 8, kbd->new, kbd->new_dma);
+ kfree(kbd->cr);
+ usb_free_coherent(dev, 1, kbd->leds, kbd->leds_dma);
}
static int usb_kbd_probe(struct usb_interface *iface,
@@ -304,9 +303,8 @@
usb_fill_control_urb(kbd->led, dev, usb_sndctrlpipe(dev, 0),
(void *) kbd->cr, kbd->leds, 1,
usb_kbd_led, kbd);
- kbd->led->setup_dma = kbd->cr_dma;
kbd->led->transfer_dma = kbd->leds_dma;
- kbd->led->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
+ kbd->led->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
error = input_register_device(kbd->dev);
if (error)
diff --git a/drivers/hid/usbhid/usbmouse.c b/drivers/hid/usbhid/usbmouse.c
index 72ab4b2..79b2bf8 100644
--- a/drivers/hid/usbhid/usbmouse.c
+++ b/drivers/hid/usbhid/usbmouse.c
@@ -142,7 +142,7 @@
if (!mouse || !input_dev)
goto fail1;
- mouse->data = usb_buffer_alloc(dev, 8, GFP_ATOMIC, &mouse->data_dma);
+ mouse->data = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &mouse->data_dma);
if (!mouse->data)
goto fail1;
@@ -205,7 +205,7 @@
fail3:
usb_free_urb(mouse->irq);
fail2:
- usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
+ usb_free_coherent(dev, 8, mouse->data, mouse->data_dma);
fail1:
input_free_device(input_dev);
kfree(mouse);
@@ -221,7 +221,7 @@
usb_kill_urb(mouse->irq);
input_unregister_device(mouse->dev);
usb_free_urb(mouse->irq);
- usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
+ usb_free_coherent(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
kfree(mouse);
}
}
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 9b3353b..c1087ce 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -533,8 +533,8 @@
if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX)
return 0;
- xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
- GFP_KERNEL, &xpad->odata_dma);
+ xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
+ GFP_KERNEL, &xpad->odata_dma);
if (!xpad->odata)
goto fail1;
@@ -554,7 +554,7 @@
return 0;
- fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
+ fail2: usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
fail1: return error;
}
@@ -568,7 +568,7 @@
{
if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX) {
usb_free_urb(xpad->irq_out);
- usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
+ usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
xpad->odata, xpad->odata_dma);
}
}
@@ -788,8 +788,8 @@
if (!xpad || !input_dev)
goto fail1;
- xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN,
- GFP_KERNEL, &xpad->idata_dma);
+ xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
+ GFP_KERNEL, &xpad->idata_dma);
if (!xpad->idata)
goto fail1;
@@ -942,7 +942,7 @@
fail5: usb_kill_urb(xpad->irq_in);
fail4: usb_free_urb(xpad->irq_in);
fail3: xpad_deinit_output(xpad);
- fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
+ fail2: usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
fail1: input_free_device(input_dev);
kfree(xpad);
return error;
@@ -964,7 +964,7 @@
usb_kill_urb(xpad->irq_in);
}
usb_free_urb(xpad->irq_in);
- usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
+ usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
xpad->idata, xpad->idata_dma);
kfree(xpad);
}
diff --git a/drivers/input/misc/ati_remote.c b/drivers/input/misc/ati_remote.c
index e8bbc61..bce5712 100644
--- a/drivers/input/misc/ati_remote.c
+++ b/drivers/input/misc/ati_remote.c
@@ -624,13 +624,13 @@
static int ati_remote_alloc_buffers(struct usb_device *udev,
struct ati_remote *ati_remote)
{
- ati_remote->inbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, GFP_ATOMIC,
- &ati_remote->inbuf_dma);
+ ati_remote->inbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
+ &ati_remote->inbuf_dma);
if (!ati_remote->inbuf)
return -1;
- ati_remote->outbuf = usb_buffer_alloc(udev, DATA_BUFSIZE, GFP_ATOMIC,
- &ati_remote->outbuf_dma);
+ ati_remote->outbuf = usb_alloc_coherent(udev, DATA_BUFSIZE, GFP_ATOMIC,
+ &ati_remote->outbuf_dma);
if (!ati_remote->outbuf)
return -1;
@@ -653,10 +653,10 @@
usb_free_urb(ati_remote->irq_urb);
usb_free_urb(ati_remote->out_urb);
- usb_buffer_free(ati_remote->udev, DATA_BUFSIZE,
+ usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
ati_remote->inbuf, ati_remote->inbuf_dma);
- usb_buffer_free(ati_remote->udev, DATA_BUFSIZE,
+ usb_free_coherent(ati_remote->udev, DATA_BUFSIZE,
ati_remote->outbuf, ati_remote->outbuf_dma);
}
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 2124b99..e148749 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -589,7 +589,7 @@
int i, pipe, maxp;
for (i = 0; i < 2; i++) {
- ar2->buf[i] = usb_buffer_alloc(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
+ ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
if (!ar2->buf[i])
return -ENOMEM;
@@ -617,7 +617,7 @@
for (i = 0; i < 2; i++) {
usb_free_urb(ar2->urb[i]);
- usb_buffer_free(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
+ usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
}
}
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
index 86457fe..2b0eba6 100644
--- a/drivers/input/misc/cm109.c
+++ b/drivers/input/misc/cm109.c
@@ -102,7 +102,6 @@
struct cm109_ctl_packet *ctl_data;
dma_addr_t ctl_dma;
struct usb_ctrlrequest *ctl_req;
- dma_addr_t ctl_req_dma;
struct urb *urb_ctl;
/*
* The 3 bitfields below are protected by ctl_submit_lock.
@@ -629,15 +628,13 @@
static void cm109_usb_cleanup(struct cm109_dev *dev)
{
- if (dev->ctl_req)
- usb_buffer_free(dev->udev, sizeof(*(dev->ctl_req)),
- dev->ctl_req, dev->ctl_req_dma);
+ kfree(dev->ctl_req);
if (dev->ctl_data)
- usb_buffer_free(dev->udev, USB_PKT_LEN,
- dev->ctl_data, dev->ctl_dma);
+ usb_free_coherent(dev->udev, USB_PKT_LEN,
+ dev->ctl_data, dev->ctl_dma);
if (dev->irq_data)
- usb_buffer_free(dev->udev, USB_PKT_LEN,
- dev->irq_data, dev->irq_dma);
+ usb_free_coherent(dev->udev, USB_PKT_LEN,
+ dev->irq_data, dev->irq_dma);
usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
@@ -686,18 +683,17 @@
goto err_out;
/* allocate usb buffers */
- dev->irq_data = usb_buffer_alloc(udev, USB_PKT_LEN,
- GFP_KERNEL, &dev->irq_dma);
+ dev->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_KERNEL, &dev->irq_dma);
if (!dev->irq_data)
goto err_out;
- dev->ctl_data = usb_buffer_alloc(udev, USB_PKT_LEN,
- GFP_KERNEL, &dev->ctl_dma);
+ dev->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_KERNEL, &dev->ctl_dma);
if (!dev->ctl_data)
goto err_out;
- dev->ctl_req = usb_buffer_alloc(udev, sizeof(*(dev->ctl_req)),
- GFP_KERNEL, &dev->ctl_req_dma);
+ dev->ctl_req = kmalloc(sizeof(*(dev->ctl_req)), GFP_KERNEL);
if (!dev->ctl_req)
goto err_out;
@@ -735,10 +731,8 @@
usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
(void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
cm109_urb_ctl_callback, dev);
- dev->urb_ctl->setup_dma = dev->ctl_req_dma;
dev->urb_ctl->transfer_dma = dev->ctl_dma;
- dev->urb_ctl->transfer_flags |= URB_NO_SETUP_DMA_MAP |
- URB_NO_TRANSFER_DMA_MAP;
+ dev->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
dev->urb_ctl->dev = udev;
/* find out the physical bus location */
diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c
index 86afdd1..a93c525 100644
--- a/drivers/input/misc/keyspan_remote.c
+++ b/drivers/input/misc/keyspan_remote.c
@@ -464,7 +464,7 @@
remote->in_endpoint = endpoint;
remote->toggle = -1; /* Set to -1 so we will always not match the toggle from the first remote message. */
- remote->in_buffer = usb_buffer_alloc(udev, RECV_SIZE, GFP_ATOMIC, &remote->in_dma);
+ remote->in_buffer = usb_alloc_coherent(udev, RECV_SIZE, GFP_ATOMIC, &remote->in_dma);
if (!remote->in_buffer) {
error = -ENOMEM;
goto fail1;
@@ -543,7 +543,7 @@
return 0;
fail3: usb_free_urb(remote->irq_urb);
- fail2: usb_buffer_free(udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ fail2: usb_free_coherent(udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
fail1: kfree(remote);
input_free_device(input_dev);
@@ -564,7 +564,7 @@
input_unregister_device(remote->input);
usb_kill_urb(remote->irq_urb);
usb_free_urb(remote->irq_urb);
- usb_buffer_free(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ usb_free_coherent(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
kfree(remote);
}
}
diff --git a/drivers/input/misc/powermate.c b/drivers/input/misc/powermate.c
index 668913d..bf170f6 100644
--- a/drivers/input/misc/powermate.c
+++ b/drivers/input/misc/powermate.c
@@ -64,7 +64,6 @@
dma_addr_t data_dma;
struct urb *irq, *config;
struct usb_ctrlrequest *configcr;
- dma_addr_t configcr_dma;
struct usb_device *udev;
struct input_dev *input;
spinlock_t lock;
@@ -182,8 +181,6 @@
usb_fill_control_urb(pm->config, pm->udev, usb_sndctrlpipe(pm->udev, 0),
(void *) pm->configcr, NULL, 0,
powermate_config_complete, pm);
- pm->config->setup_dma = pm->configcr_dma;
- pm->config->transfer_flags |= URB_NO_SETUP_DMA_MAP;
if (usb_submit_urb(pm->config, GFP_ATOMIC))
printk(KERN_ERR "powermate: usb_submit_urb(config) failed");
@@ -276,13 +273,12 @@
static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_device *pm)
{
- pm->data = usb_buffer_alloc(udev, POWERMATE_PAYLOAD_SIZE_MAX,
- GFP_ATOMIC, &pm->data_dma);
+ pm->data = usb_alloc_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
+ GFP_ATOMIC, &pm->data_dma);
if (!pm->data)
return -1;
- pm->configcr = usb_buffer_alloc(udev, sizeof(*(pm->configcr)),
- GFP_ATOMIC, &pm->configcr_dma);
+ pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL);
if (!pm->configcr)
return -1;
@@ -291,10 +287,9 @@
static void powermate_free_buffers(struct usb_device *udev, struct powermate_device *pm)
{
- usb_buffer_free(udev, POWERMATE_PAYLOAD_SIZE_MAX,
- pm->data, pm->data_dma);
- usb_buffer_free(udev, sizeof(*(pm->configcr)),
- pm->configcr, pm->configcr_dma);
+ usb_free_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
+ pm->data, pm->data_dma);
+ kfree(pm->configcr);
}
/* Called whenever a USB device matching one in our supported devices table is connected */
diff --git a/drivers/input/misc/yealink.c b/drivers/input/misc/yealink.c
index 93a22ac..41201c6 100644
--- a/drivers/input/misc/yealink.c
+++ b/drivers/input/misc/yealink.c
@@ -111,7 +111,6 @@
struct yld_ctl_packet *ctl_data;
dma_addr_t ctl_dma;
struct usb_ctrlrequest *ctl_req;
- dma_addr_t ctl_req_dma;
struct urb *urb_ctl;
char phys[64]; /* physical device path */
@@ -836,12 +835,9 @@
usb_free_urb(yld->urb_irq);
usb_free_urb(yld->urb_ctl);
- usb_buffer_free(yld->udev, sizeof(*(yld->ctl_req)),
- yld->ctl_req, yld->ctl_req_dma);
- usb_buffer_free(yld->udev, USB_PKT_LEN,
- yld->ctl_data, yld->ctl_dma);
- usb_buffer_free(yld->udev, USB_PKT_LEN,
- yld->irq_data, yld->irq_dma);
+ kfree(yld->ctl_req);
+ usb_free_coherent(yld->udev, USB_PKT_LEN, yld->ctl_data, yld->ctl_dma);
+ usb_free_coherent(yld->udev, USB_PKT_LEN, yld->irq_data, yld->irq_dma);
kfree(yld);
return err;
@@ -886,18 +882,17 @@
return usb_cleanup(yld, -ENOMEM);
/* allocate usb buffers */
- yld->irq_data = usb_buffer_alloc(udev, USB_PKT_LEN,
- GFP_ATOMIC, &yld->irq_dma);
+ yld->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_ATOMIC, &yld->irq_dma);
if (yld->irq_data == NULL)
return usb_cleanup(yld, -ENOMEM);
- yld->ctl_data = usb_buffer_alloc(udev, USB_PKT_LEN,
- GFP_ATOMIC, &yld->ctl_dma);
+ yld->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_ATOMIC, &yld->ctl_dma);
if (!yld->ctl_data)
return usb_cleanup(yld, -ENOMEM);
- yld->ctl_req = usb_buffer_alloc(udev, sizeof(*(yld->ctl_req)),
- GFP_ATOMIC, &yld->ctl_req_dma);
+ yld->ctl_req = kmalloc(sizeof(*(yld->ctl_req)), GFP_KERNEL);
if (yld->ctl_req == NULL)
return usb_cleanup(yld, -ENOMEM);
@@ -936,10 +931,8 @@
usb_fill_control_urb(yld->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
(void *)yld->ctl_req, yld->ctl_data, USB_PKT_LEN,
urb_ctl_callback, yld);
- yld->urb_ctl->setup_dma = yld->ctl_req_dma;
yld->urb_ctl->transfer_dma = yld->ctl_dma;
- yld->urb_ctl->transfer_flags |= URB_NO_SETUP_DMA_MAP |
- URB_NO_TRANSFER_DMA_MAP;
+ yld->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
yld->urb_ctl->dev = udev;
/* find out the physical bus location */
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index 53ec7dd..05edd75 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -806,8 +806,8 @@
if (!dev->urb)
goto err_free_devs;
- dev->data = usb_buffer_alloc(dev->udev, dev->info->datalen, GFP_KERNEL,
- &dev->urb->transfer_dma);
+ dev->data = usb_alloc_coherent(dev->udev, dev->info->datalen, GFP_KERNEL,
+ &dev->urb->transfer_dma);
if (!dev->data)
goto err_free_urb;
@@ -862,8 +862,8 @@
return 0;
err_free_buffer:
- usb_buffer_free(dev->udev, dev->info->datalen,
- dev->data, dev->urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->info->datalen,
+ dev->data, dev->urb->transfer_dma);
err_free_urb:
usb_free_urb(dev->urb);
err_free_devs:
@@ -881,8 +881,8 @@
if (dev) {
usb_kill_urb(dev->urb);
input_unregister_device(dev->input);
- usb_buffer_free(dev->udev, dev->info->datalen,
- dev->data, dev->urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->info->datalen,
+ dev->data, dev->urb->transfer_dma);
usb_free_urb(dev->urb);
kfree(dev);
}
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index b89879b..6dedded 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -715,15 +715,15 @@
if (!dev->tp_urb)
goto err_free_bt_urb;
- dev->bt_data = usb_buffer_alloc(dev->udev,
- dev->cfg.bt_datalen, GFP_KERNEL,
- &dev->bt_urb->transfer_dma);
+ dev->bt_data = usb_alloc_coherent(dev->udev,
+ dev->cfg.bt_datalen, GFP_KERNEL,
+ &dev->bt_urb->transfer_dma);
if (!dev->bt_data)
goto err_free_urb;
- dev->tp_data = usb_buffer_alloc(dev->udev,
- dev->cfg.tp_datalen, GFP_KERNEL,
- &dev->tp_urb->transfer_dma);
+ dev->tp_data = usb_alloc_coherent(dev->udev,
+ dev->cfg.tp_datalen, GFP_KERNEL,
+ &dev->tp_urb->transfer_dma);
if (!dev->tp_data)
goto err_free_bt_buffer;
@@ -765,10 +765,10 @@
return 0;
err_free_buffer:
- usb_buffer_free(dev->udev, dev->cfg.tp_datalen,
+ usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
dev->tp_data, dev->tp_urb->transfer_dma);
err_free_bt_buffer:
- usb_buffer_free(dev->udev, dev->cfg.bt_datalen,
+ usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
dev->bt_data, dev->bt_urb->transfer_dma);
err_free_urb:
usb_free_urb(dev->tp_urb);
@@ -788,10 +788,10 @@
usb_set_intfdata(iface, NULL);
input_unregister_device(dev->input);
- usb_buffer_free(dev->udev, dev->cfg.tp_datalen,
- dev->tp_data, dev->tp_urb->transfer_dma);
- usb_buffer_free(dev->udev, dev->cfg.bt_datalen,
- dev->bt_data, dev->bt_urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
+ dev->tp_data, dev->tp_urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
+ dev->bt_data, dev->bt_urb->transfer_dma);
usb_free_urb(dev->tp_urb);
usb_free_urb(dev->bt_urb);
kfree(dev);
diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c
index 37d0539..aea9a93 100644
--- a/drivers/input/tablet/acecad.c
+++ b/drivers/input/tablet/acecad.c
@@ -155,7 +155,7 @@
goto fail1;
}
- acecad->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &acecad->data_dma);
+ acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
if (!acecad->data) {
err= -ENOMEM;
goto fail1;
@@ -235,7 +235,7 @@
return 0;
- fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
+ fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
fail1: input_free_device(input_dev);
kfree(acecad);
return err;
@@ -249,7 +249,7 @@
input_unregister_device(acecad->input);
usb_free_urb(acecad->irq);
- usb_buffer_free(acecad->usbdev, 8, acecad->data, acecad->data_dma);
+ usb_free_coherent(acecad->usbdev, 8, acecad->data, acecad->data_dma);
kfree(acecad);
}
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index 4be039d..51b80b0 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1711,8 +1711,8 @@
goto fail1;
}
- aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH,
- GFP_ATOMIC, &aiptek->data_dma);
+ aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
+ GFP_ATOMIC, &aiptek->data_dma);
if (!aiptek->data) {
dev_warn(&intf->dev, "cannot allocate usb buffer\n");
goto fail1;
@@ -1884,8 +1884,8 @@
fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
fail3: usb_free_urb(aiptek->urb);
- fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
- aiptek->data_dma);
+ fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
+ aiptek->data_dma);
fail1: usb_set_intfdata(intf, NULL);
input_free_device(inputdev);
kfree(aiptek);
@@ -1909,9 +1909,9 @@
input_unregister_device(aiptek->inputdev);
sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
usb_free_urb(aiptek->urb);
- usb_buffer_free(interface_to_usbdev(intf),
- AIPTEK_PACKET_LENGTH,
- aiptek->data, aiptek->data_dma);
+ usb_free_coherent(interface_to_usbdev(intf),
+ AIPTEK_PACKET_LENGTH,
+ aiptek->data, aiptek->data_dma);
kfree(aiptek);
}
}
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 866a9ee..8ea6afe 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -850,8 +850,8 @@
gtco->usbdev = usb_get_dev(interface_to_usbdev(usbinterface));
/* Allocate some data for incoming reports */
- gtco->buffer = usb_buffer_alloc(gtco->usbdev, REPORT_MAX_SIZE,
- GFP_KERNEL, >co->buf_dma);
+ gtco->buffer = usb_alloc_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+ GFP_KERNEL, >co->buf_dma);
if (!gtco->buffer) {
err("No more memory for us buffers");
error = -ENOMEM;
@@ -982,8 +982,8 @@
err_free_urb:
usb_free_urb(gtco->urbinfo);
err_free_buf:
- usb_buffer_free(gtco->usbdev, REPORT_MAX_SIZE,
- gtco->buffer, gtco->buf_dma);
+ usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+ gtco->buffer, gtco->buf_dma);
err_free_devs:
input_free_device(input_dev);
kfree(gtco);
@@ -1005,8 +1005,8 @@
input_unregister_device(gtco->inputdevice);
usb_kill_urb(gtco->urbinfo);
usb_free_urb(gtco->urbinfo);
- usb_buffer_free(gtco->usbdev, REPORT_MAX_SIZE,
- gtco->buffer, gtco->buf_dma);
+ usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+ gtco->buffer, gtco->buf_dma);
kfree(gtco);
}
diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c
index b9969f1..290f4e5 100644
--- a/drivers/input/tablet/kbtab.c
+++ b/drivers/input/tablet/kbtab.c
@@ -122,7 +122,7 @@
if (!kbtab || !input_dev)
goto fail1;
- kbtab->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &kbtab->data_dma);
+ kbtab->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &kbtab->data_dma);
if (!kbtab->data)
goto fail1;
@@ -173,7 +173,7 @@
return 0;
fail3: usb_free_urb(kbtab->irq);
- fail2: usb_buffer_free(dev, 8, kbtab->data, kbtab->data_dma);
+ fail2: usb_free_coherent(dev, 8, kbtab->data, kbtab->data_dma);
fail1: input_free_device(input_dev);
kfree(kbtab);
return error;
@@ -187,7 +187,7 @@
input_unregister_device(kbtab->dev);
usb_free_urb(kbtab->irq);
- usb_buffer_free(kbtab->usbdev, 8, kbtab->data, kbtab->data_dma);
+ usb_free_coherent(kbtab->usbdev, 8, kbtab->data, kbtab->data_dma);
kfree(kbtab);
}
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index d90f4e0..2dc0c07 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -465,8 +465,8 @@
goto fail1;
}
- wacom_wac->data = usb_buffer_alloc(dev, WACOM_PKGLEN_MAX,
- GFP_KERNEL, &wacom->data_dma);
+ wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX,
+ GFP_KERNEL, &wacom->data_dma);
if (!wacom_wac->data) {
error = -ENOMEM;
goto fail1;
@@ -536,7 +536,7 @@
fail4: wacom_remove_shared_data(wacom_wac);
fail3: usb_free_urb(wacom->irq);
- fail2: usb_buffer_free(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
+ fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
fail1: input_free_device(input_dev);
kfree(wacom);
return error;
@@ -551,7 +551,7 @@
usb_kill_urb(wacom->irq);
input_unregister_device(wacom->wacom_wac.input);
usb_free_urb(wacom->irq);
- usb_buffer_free(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
+ usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
wacom->wacom_wac.data, wacom->data_dma);
wacom_remove_shared_data(&wacom->wacom_wac);
kfree(wacom);
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 0b0ae2e..29a8bbf 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -1290,8 +1290,8 @@
static void usbtouch_free_buffers(struct usb_device *udev,
struct usbtouch_usb *usbtouch)
{
- usb_buffer_free(udev, usbtouch->type->rept_size,
- usbtouch->data, usbtouch->data_dma);
+ usb_free_coherent(udev, usbtouch->type->rept_size,
+ usbtouch->data, usbtouch->data_dma);
kfree(usbtouch->buffer);
}
@@ -1335,8 +1335,8 @@
if (!type->process_pkt)
type->process_pkt = usbtouch_process_pkt;
- usbtouch->data = usb_buffer_alloc(udev, type->rept_size,
- GFP_KERNEL, &usbtouch->data_dma);
+ usbtouch->data = usb_alloc_coherent(udev, type->rept_size,
+ GFP_KERNEL, &usbtouch->data_dma);
if (!usbtouch->data)
goto out_free;
diff --git a/drivers/media/dvb/dvb-usb/usb-urb.c b/drivers/media/dvb/dvb-usb/usb-urb.c
index f9702e3..86d6893 100644
--- a/drivers/media/dvb/dvb-usb/usb-urb.c
+++ b/drivers/media/dvb/dvb-usb/usb-urb.c
@@ -96,8 +96,9 @@
while (stream->buf_num) {
stream->buf_num--;
deb_mem("freeing buffer %d\n",stream->buf_num);
- usb_buffer_free(stream->udev, stream->buf_size,
- stream->buf_list[stream->buf_num], stream->dma_addr[stream->buf_num]);
+ usb_free_coherent(stream->udev, stream->buf_size,
+ stream->buf_list[stream->buf_num],
+ stream->dma_addr[stream->buf_num]);
}
}
@@ -116,7 +117,7 @@
for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {
deb_mem("allocating buffer %d\n",stream->buf_num);
if (( stream->buf_list[stream->buf_num] =
- usb_buffer_alloc(stream->udev, size, GFP_ATOMIC,
+ usb_alloc_coherent(stream->udev, size, GFP_ATOMIC,
&stream->dma_addr[stream->buf_num]) ) == NULL) {
deb_mem("not enough memory for urb-buffer allocation.\n");
usb_free_stream_buffers(stream);
diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
index 53baccb..fe1b803 100644
--- a/drivers/media/dvb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
@@ -1257,7 +1257,7 @@
if(!dec->irq_urb) {
return -ENOMEM;
}
- dec->irq_buffer = usb_buffer_alloc(dec->udev,IRQ_PACKET_SIZE,
+ dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE,
GFP_ATOMIC, &dec->irq_dma_handle);
if(!dec->irq_buffer) {
usb_free_urb(dec->irq_urb);
@@ -1550,8 +1550,8 @@
usb_free_urb(dec->irq_urb);
- usb_buffer_free(dec->udev,IRQ_PACKET_SIZE,
- dec->irq_buffer, dec->irq_dma_handle);
+ usb_free_coherent(dec->udev,IRQ_PACKET_SIZE,
+ dec->irq_buffer, dec->irq_dma_handle);
if (dec->rc_input_dev) {
input_unregister_device(dec->rc_input_dev);
diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
index 6615021..52f25aa 100644
--- a/drivers/media/video/au0828/au0828-video.c
+++ b/drivers/media/video/au0828/au0828-video.c
@@ -177,7 +177,7 @@
usb_unlink_urb(urb);
if (dev->isoc_ctl.transfer_buffer[i]) {
- usb_buffer_free(dev->usbdev,
+ usb_free_coherent(dev->usbdev,
urb->transfer_buffer_length,
dev->isoc_ctl.transfer_buffer[i],
urb->transfer_dma);
@@ -247,7 +247,7 @@
}
dev->isoc_ctl.urb[i] = urb;
- dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->usbdev,
+ dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
sb_size, GFP_KERNEL, &urb->transfer_dma);
if (!dev->isoc_ctl.transfer_buffer[i]) {
printk("unable to allocate %i bytes for transfer"
diff --git a/drivers/media/video/cx231xx/cx231xx-core.c b/drivers/media/video/cx231xx/cx231xx-core.c
index f5e1a23..912a4d7 100644
--- a/drivers/media/video/cx231xx/cx231xx-core.c
+++ b/drivers/media/video/cx231xx/cx231xx-core.c
@@ -676,11 +676,11 @@
usb_unlink_urb(urb);
if (dev->video_mode.isoc_ctl.transfer_buffer[i]) {
- usb_buffer_free(dev->udev,
- urb->transfer_buffer_length,
- dev->video_mode.isoc_ctl.
- transfer_buffer[i],
- urb->transfer_dma);
+ usb_free_coherent(dev->udev,
+ urb->transfer_buffer_length,
+ dev->video_mode.isoc_ctl.
+ transfer_buffer[i],
+ urb->transfer_dma);
}
usb_free_urb(urb);
dev->video_mode.isoc_ctl.urb[i] = NULL;
@@ -767,8 +767,8 @@
dev->video_mode.isoc_ctl.urb[i] = urb;
dev->video_mode.isoc_ctl.transfer_buffer[i] =
- usb_buffer_alloc(dev->udev, sb_size, GFP_KERNEL,
- &urb->transfer_dma);
+ usb_alloc_coherent(dev->udev, sb_size, GFP_KERNEL,
+ &urb->transfer_dma);
if (!dev->video_mode.isoc_ctl.transfer_buffer[i]) {
cx231xx_err("unable to allocate %i bytes for transfer"
" buffer %i%s\n",
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index d3813ed..331e1ca 100644
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -970,7 +970,7 @@
usb_unlink_urb(urb);
if (dev->isoc_ctl.transfer_buffer[i]) {
- usb_buffer_free(dev->udev,
+ usb_free_coherent(dev->udev,
urb->transfer_buffer_length,
dev->isoc_ctl.transfer_buffer[i],
urb->transfer_dma);
@@ -1045,7 +1045,7 @@
}
dev->isoc_ctl.urb[i] = urb;
- dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev,
+ dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->udev,
sb_size, GFP_KERNEL, &urb->transfer_dma);
if (!dev->isoc_ctl.transfer_buffer[i]) {
em28xx_err("unable to allocate %i bytes for transfer"
diff --git a/drivers/media/video/gspca/benq.c b/drivers/media/video/gspca/benq.c
index 43ac4af..fce8d94 100644
--- a/drivers/media/video/gspca/benq.c
+++ b/drivers/media/video/gspca/benq.c
@@ -117,13 +117,13 @@
return -ENOMEM;
}
gspca_dev->urb[n] = urb;
- urb->transfer_buffer = usb_buffer_alloc(gspca_dev->dev,
+ urb->transfer_buffer = usb_alloc_coherent(gspca_dev->dev,
SD_PKT_SZ * SD_NPKT,
GFP_KERNEL,
&urb->transfer_dma);
if (urb->transfer_buffer == NULL) {
- err("usb_buffer_alloc failed");
+ err("usb_alloc_coherent failed");
return -ENOMEM;
}
urb->dev = gspca_dev->dev;
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index efe6159..678675b 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -213,7 +213,7 @@
goto error;
}
- buffer = usb_buffer_alloc(dev, buffer_len,
+ buffer = usb_alloc_coherent(dev, buffer_len,
GFP_KERNEL, &urb->transfer_dma);
if (!buffer) {
ret = -ENOMEM;
@@ -232,10 +232,10 @@
return ret;
error_submit:
- usb_buffer_free(dev,
- urb->transfer_buffer_length,
- urb->transfer_buffer,
- urb->transfer_dma);
+ usb_free_coherent(dev,
+ urb->transfer_buffer_length,
+ urb->transfer_buffer,
+ urb->transfer_dma);
error_buffer:
usb_free_urb(urb);
error:
@@ -272,10 +272,10 @@
if (urb) {
gspca_dev->int_urb = NULL;
usb_kill_urb(urb);
- usb_buffer_free(gspca_dev->dev,
- urb->transfer_buffer_length,
- urb->transfer_buffer,
- urb->transfer_dma);
+ usb_free_coherent(gspca_dev->dev,
+ urb->transfer_buffer_length,
+ urb->transfer_buffer,
+ urb->transfer_dma);
usb_free_urb(urb);
}
}
@@ -605,10 +605,10 @@
gspca_dev->urb[i] = NULL;
usb_kill_urb(urb);
if (urb->transfer_buffer != NULL)
- usb_buffer_free(gspca_dev->dev,
- urb->transfer_buffer_length,
- urb->transfer_buffer,
- urb->transfer_dma);
+ usb_free_coherent(gspca_dev->dev,
+ urb->transfer_buffer_length,
+ urb->transfer_buffer,
+ urb->transfer_dma);
usb_free_urb(urb);
}
}
@@ -760,13 +760,13 @@
return -ENOMEM;
}
gspca_dev->urb[n] = urb;
- urb->transfer_buffer = usb_buffer_alloc(gspca_dev->dev,
+ urb->transfer_buffer = usb_alloc_coherent(gspca_dev->dev,
bsize,
GFP_KERNEL,
&urb->transfer_dma);
if (urb->transfer_buffer == NULL) {
- err("usb_buffer_alloc failed");
+ err("usb_alloc_coherent failed");
return -ENOMEM;
}
urb->dev = gspca_dev->dev;
diff --git a/drivers/media/video/hdpvr/hdpvr-video.c b/drivers/media/video/hdpvr/hdpvr-video.c
index d2f0ee2..7cfccfd 100644
--- a/drivers/media/video/hdpvr/hdpvr-video.c
+++ b/drivers/media/video/hdpvr/hdpvr-video.c
@@ -92,8 +92,8 @@
buf = list_entry(p, struct hdpvr_buffer, buff_list);
urb = buf->urb;
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
usb_free_urb(urb);
tmp = p->next;
list_del(p);
@@ -143,8 +143,8 @@
}
buf->urb = urb;
- mem = usb_buffer_alloc(dev->udev, dev->bulk_in_size, GFP_KERNEL,
- &urb->transfer_dma);
+ mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
+ &urb->transfer_dma);
if (!mem) {
v4l2_err(&dev->v4l2_dev,
"cannot allocate usb transfer buffer\n");
diff --git a/drivers/media/video/tlg2300/pd-main.c b/drivers/media/video/tlg2300/pd-main.c
index c267e0c..256cc55 100644
--- a/drivers/media/video/tlg2300/pd-main.c
+++ b/drivers/media/video/tlg2300/pd-main.c
@@ -454,8 +454,8 @@
device_init_wakeup(&udev->dev, 1);
#ifdef CONFIG_PM
- pd->udev->autosuspend_disabled = 0;
pd->udev->autosuspend_delay = HZ * PM_SUSPEND_DELAY;
+ usb_enable_autosuspend(pd->udev);
if (in_hibernation(pd)) {
INIT_WORK(&pd->pm_work, hibernation_resume);
diff --git a/drivers/media/video/tlg2300/pd-video.c b/drivers/media/video/tlg2300/pd-video.c
index c750fd1..d0cc012 100644
--- a/drivers/media/video/tlg2300/pd-video.c
+++ b/drivers/media/video/tlg2300/pd-video.c
@@ -478,10 +478,10 @@
goto out;
video->urb_array[i] = urb;
- mem = usb_buffer_alloc(udev,
- ISO_PKT_SIZE * PK_PER_URB,
- GFP_KERNEL,
- &urb->transfer_dma);
+ mem = usb_alloc_coherent(udev,
+ ISO_PKT_SIZE * PK_PER_URB,
+ GFP_KERNEL,
+ &urb->transfer_dma);
urb->complete = urb_complete_iso; /* handler */
urb->dev = udev;
@@ -521,8 +521,8 @@
if (urb == NULL)
return i;
- mem = usb_buffer_alloc(udev, buf_size, gfp_flags,
- &urb->transfer_dma);
+ mem = usb_alloc_coherent(udev, buf_size, gfp_flags,
+ &urb->transfer_dma);
if (mem == NULL)
return i;
@@ -542,7 +542,7 @@
for (i = 0; i < num; i++) {
urb = urb_array[i];
if (urb) {
- usb_buffer_free(urb->dev,
+ usb_free_coherent(urb->dev,
urb->transfer_buffer_length,
urb->transfer_buffer,
urb->transfer_dma);
diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c
index f7aae22..b9dd74f 100644
--- a/drivers/media/video/usbvision/usbvision-core.c
+++ b/drivers/media/video/usbvision/usbvision-core.c
@@ -2493,10 +2493,10 @@
}
usbvision->sbuf[bufIdx].urb = urb;
usbvision->sbuf[bufIdx].data =
- usb_buffer_alloc(usbvision->dev,
- sb_size,
- GFP_KERNEL,
- &urb->transfer_dma);
+ usb_alloc_coherent(usbvision->dev,
+ sb_size,
+ GFP_KERNEL,
+ &urb->transfer_dma);
urb->dev = dev;
urb->context = usbvision;
urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
@@ -2552,10 +2552,10 @@
for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
usb_kill_urb(usbvision->sbuf[bufIdx].urb);
if (usbvision->sbuf[bufIdx].data){
- usb_buffer_free(usbvision->dev,
- sb_size,
- usbvision->sbuf[bufIdx].data,
- usbvision->sbuf[bufIdx].urb->transfer_dma);
+ usb_free_coherent(usbvision->dev,
+ sb_size,
+ usbvision->sbuf[bufIdx].data,
+ usbvision->sbuf[bufIdx].urb->transfer_dma);
}
usb_free_urb(usbvision->sbuf[bufIdx].urb);
usbvision->sbuf[bufIdx].urb = NULL;
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 821a996..53f3ef4 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -739,7 +739,7 @@
for (i = 0; i < UVC_URBS; ++i) {
if (stream->urb_buffer[i]) {
- usb_buffer_free(stream->dev->udev, stream->urb_size,
+ usb_free_coherent(stream->dev->udev, stream->urb_size,
stream->urb_buffer[i], stream->urb_dma[i]);
stream->urb_buffer[i] = NULL;
}
@@ -780,7 +780,7 @@
for (; npackets > 1; npackets /= 2) {
for (i = 0; i < UVC_URBS; ++i) {
stream->urb_size = psize * npackets;
- stream->urb_buffer[i] = usb_buffer_alloc(
+ stream->urb_buffer[i] = usb_alloc_coherent(
stream->dev->udev, stream->urb_size,
gfp_flags | __GFP_NOWARN, &stream->urb_dma[i]);
if (!stream->urb_buffer[i]) {
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index df0a636..1fc0871 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -512,8 +512,8 @@
netdev = dev->netdev;
/* free up our allocated buffer */
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
atomic_dec(&dev->active_tx_urbs);
@@ -610,8 +610,8 @@
return -ENOMEM;
}
- buf = usb_buffer_alloc(dev->udev, RX_BUFFER_SIZE, GFP_KERNEL,
- &urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, RX_BUFFER_SIZE, GFP_KERNEL,
+ &urb->transfer_dma);
if (!buf) {
dev_err(netdev->dev.parent,
"No memory left for USB buffer\n");
@@ -631,8 +631,8 @@
netif_device_detach(dev->netdev);
usb_unanchor_urb(urb);
- usb_buffer_free(dev->udev, RX_BUFFER_SIZE, buf,
- urb->transfer_dma);
+ usb_free_coherent(dev->udev, RX_BUFFER_SIZE, buf,
+ urb->transfer_dma);
break;
}
@@ -773,7 +773,7 @@
goto nomem;
}
- buf = usb_buffer_alloc(dev->udev, size, GFP_ATOMIC, &urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, size, GFP_ATOMIC, &urb->transfer_dma);
if (!buf) {
dev_err(netdev->dev.parent, "No memory left for USB buffer\n");
usb_free_urb(urb);
@@ -816,7 +816,7 @@
*/
if (!context) {
usb_unanchor_urb(urb);
- usb_buffer_free(dev->udev, size, buf, urb->transfer_dma);
+ usb_free_coherent(dev->udev, size, buf, urb->transfer_dma);
dev_warn(netdev->dev.parent, "couldn't find free context\n");
@@ -841,7 +841,7 @@
can_free_echo_skb(netdev, context->echo_index);
usb_unanchor_urb(urb);
- usb_buffer_free(dev->udev, size, buf, urb->transfer_dma);
+ usb_free_coherent(dev->udev, size, buf, urb->transfer_dma);
dev_kfree_skb(skb);
atomic_dec(&dev->active_tx_urbs);
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 418825d..197c352 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -128,17 +128,13 @@
if (rx_urb == NULL)
goto free_tx_urb;
- tx_buf = usb_buffer_alloc(iphone->udev,
- IPHETH_BUF_SIZE,
- GFP_KERNEL,
- &tx_urb->transfer_dma);
+ tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
+ GFP_KERNEL, &tx_urb->transfer_dma);
if (tx_buf == NULL)
goto free_rx_urb;
- rx_buf = usb_buffer_alloc(iphone->udev,
- IPHETH_BUF_SIZE,
- GFP_KERNEL,
- &rx_urb->transfer_dma);
+ rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
+ GFP_KERNEL, &rx_urb->transfer_dma);
if (rx_buf == NULL)
goto free_tx_buf;
@@ -150,8 +146,8 @@
return 0;
free_tx_buf:
- usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
- tx_urb->transfer_dma);
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
+ tx_urb->transfer_dma);
free_rx_urb:
usb_free_urb(rx_urb);
free_tx_urb:
@@ -162,10 +158,10 @@
static void ipheth_free_urbs(struct ipheth_device *iphone)
{
- usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
- iphone->rx_urb->transfer_dma);
- usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
- iphone->tx_urb->transfer_dma);
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
+ iphone->rx_urb->transfer_dma);
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
+ iphone->tx_urb->transfer_dma);
usb_free_urb(iphone->rx_urb);
usb_free_urb(iphone->tx_urb);
}
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 46890dc..d6078b8 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1155,13 +1155,13 @@
if (!kaweth->irq_urb)
goto err_tx_and_rx;
- kaweth->intbuffer = usb_buffer_alloc( kaweth->dev,
+ kaweth->intbuffer = usb_alloc_coherent( kaweth->dev,
INTBUFFERSIZE,
GFP_KERNEL,
&kaweth->intbufferhandle);
if (!kaweth->intbuffer)
goto err_tx_and_rx_and_irq;
- kaweth->rx_buf = usb_buffer_alloc( kaweth->dev,
+ kaweth->rx_buf = usb_alloc_coherent( kaweth->dev,
KAWETH_BUF_SIZE,
GFP_KERNEL,
&kaweth->rxbufferhandle);
@@ -1202,9 +1202,9 @@
err_intfdata:
usb_set_intfdata(intf, NULL);
- usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle);
+ usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle);
err_all_but_rxbuf:
- usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle);
+ usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle);
err_tx_and_rx_and_irq:
usb_free_urb(kaweth->irq_urb);
err_tx_and_rx:
@@ -1241,8 +1241,8 @@
usb_free_urb(kaweth->tx_urb);
usb_free_urb(kaweth->irq_urb);
- usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle);
- usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle);
+ usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle);
+ usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle);
free_netdev(netdev);
}
diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c
index 16341ff..0d5081d 100644
--- a/drivers/net/wimax/i2400m/usb.c
+++ b/drivers/net/wimax/i2400m/usb.c
@@ -514,7 +514,7 @@
iface->needs_remote_wakeup = 1; /* autosuspend (15s delay) */
device_init_wakeup(dev, 1);
usb_dev->autosuspend_delay = 15 * HZ;
- usb_dev->autosuspend_disabled = 0;
+ usb_enable_autosuspend(usb_dev);
#endif
result = i2400m_setup(i2400m, I2400M_BRI_MAC_REINIT);
diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index abd083a..82ab532 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -215,7 +215,7 @@
return;
free:
- usb_buffer_free(aru->udev, 64, urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(aru->udev, 64, urb->transfer_buffer, urb->transfer_dma);
}
static void ar9170_usb_rx_completed(struct urb *urb)
@@ -296,7 +296,7 @@
if (!urb)
goto out;
- ibuf = usb_buffer_alloc(aru->udev, 64, GFP_KERNEL, &urb->transfer_dma);
+ ibuf = usb_alloc_coherent(aru->udev, 64, GFP_KERNEL, &urb->transfer_dma);
if (!ibuf)
goto out;
@@ -309,8 +309,8 @@
err = usb_submit_urb(urb, GFP_KERNEL);
if (err) {
usb_unanchor_urb(urb);
- usb_buffer_free(aru->udev, 64, urb->transfer_buffer,
- urb->transfer_dma);
+ usb_free_coherent(aru->udev, 64, urb->transfer_buffer,
+ urb->transfer_dma);
}
out:
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index d91ad1a..c257940 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -664,15 +664,15 @@
urb = usb_alloc_urb(0, GFP_KERNEL);
if (!urb)
return NULL;
- buffer = usb_buffer_alloc(udev, USB_MAX_RX_SIZE, GFP_KERNEL,
- &urb->transfer_dma);
+ buffer = usb_alloc_coherent(udev, USB_MAX_RX_SIZE, GFP_KERNEL,
+ &urb->transfer_dma);
if (!buffer) {
usb_free_urb(urb);
return NULL;
}
usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, EP_DATA_IN),
- buffer, USB_MAX_RX_SIZE,
+ buffer, USB_MAX_RX_SIZE,
rx_urb_complete, usb);
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
@@ -683,8 +683,8 @@
{
if (!urb)
return;
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
usb_free_urb(urb);
}
diff --git a/drivers/staging/rt2860/iface/rtmp_usb.h b/drivers/staging/rt2860/iface/rtmp_usb.h
index 6bb384a..33479cc 100644
--- a/drivers/staging/rt2860/iface/rtmp_usb.h
+++ b/drivers/staging/rt2860/iface/rtmp_usb.h
@@ -81,8 +81,8 @@
#define RT28XX_PUT_DEVICE usb_put_dev
#define RTUSB_ALLOC_URB(iso) usb_alloc_urb(iso, GFP_ATOMIC)
#define RTUSB_SUBMIT_URB(pUrb) usb_submit_urb(pUrb, GFP_ATOMIC)
-#define RTUSB_URB_ALLOC_BUFFER(pUsb_Dev, BufSize, pDma_addr) usb_buffer_alloc(pUsb_Dev, BufSize, GFP_ATOMIC, pDma_addr)
-#define RTUSB_URB_FREE_BUFFER(pUsb_Dev, BufSize, pTransferBuf, Dma_addr) usb_buffer_free(pUsb_Dev, BufSize, pTransferBuf, Dma_addr)
+#define RTUSB_URB_ALLOC_BUFFER(pUsb_Dev, BufSize, pDma_addr) usb_alloc_coherent(pUsb_Dev, BufSize, GFP_ATOMIC, pDma_addr)
+#define RTUSB_URB_FREE_BUFFER(pUsb_Dev, BufSize, pTransferBuf, Dma_addr) usb_free_coherent(pUsb_Dev, BufSize, pTransferBuf, Dma_addr)
#define RTUSB_FREE_URB(pUrb) usb_free_urb(pUrb)
diff --git a/drivers/staging/udlfb/udlfb.c b/drivers/staging/udlfb/udlfb.c
index a78ade0..aa81951 100644
--- a/drivers/staging/udlfb/udlfb.c
+++ b/drivers/staging/udlfb/udlfb.c
@@ -1508,8 +1508,8 @@
urb = unode->urb;
/* Free each separately allocated piece */
- usb_buffer_free(urb->dev, dev->urbs.size,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, dev->urbs.size,
+ urb->transfer_buffer, urb->transfer_dma);
usb_free_urb(urb);
kfree(node);
}
@@ -1543,8 +1543,8 @@
}
unode->urb = urb;
- buf = usb_buffer_alloc(dev->udev, MAX_TRANSFER, GFP_KERNEL,
- &urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, MAX_TRANSFER, GFP_KERNEL,
+ &urb->transfer_dma);
if (!buf) {
kfree(unode);
usb_free_urb(urb);
diff --git a/drivers/staging/usbip/stub_rx.c b/drivers/staging/usbip/stub_rx.c
index bc26740..da30658 100644
--- a/drivers/staging/usbip/stub_rx.c
+++ b/drivers/staging/usbip/stub_rx.c
@@ -21,7 +21,7 @@
#include "usbip_common.h"
#include "stub.h"
-#include "../../usb/core/hcd.h"
+#include <linux/usb/hcd.h>
static int is_clear_halt_cmd(struct urb *urb)
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index e3fa421..5240816 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -562,7 +562,7 @@
/* there may be more cases to tweak the flags. */
static unsigned int tweak_transfer_flags(unsigned int flags)
{
- flags &= ~(URB_NO_TRANSFER_DMA_MAP|URB_NO_SETUP_DMA_MAP);
+ flags &= ~URB_NO_TRANSFER_DMA_MAP;
return flags;
}
diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h
index 5e37517..41a1fe5 100644
--- a/drivers/staging/usbip/vhci.h
+++ b/drivers/staging/usbip/vhci.h
@@ -18,7 +18,7 @@
*/
#include <linux/platform_device.h>
-#include "../../usb/core/hcd.h"
+#include <linux/usb/hcd.h>
struct vhci_device {
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index 25f01b5..e213d3f 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -94,19 +94,19 @@
} while (0)
#define uea_enters(usb_dev) \
- uea_vdbg(usb_dev, "entering %s\n", __func__)
+ uea_vdbg(usb_dev, "entering %s\n" , __func__)
#define uea_leaves(usb_dev) \
- uea_vdbg(usb_dev, "leaving %s\n", __func__)
+ uea_vdbg(usb_dev, "leaving %s\n" , __func__)
-#define uea_err(usb_dev, format,args...) \
- dev_err(&(usb_dev)->dev ,"[UEAGLE-ATM] " format , ##args)
+#define uea_err(usb_dev, format, args...) \
+ dev_err(&(usb_dev)->dev , "[UEAGLE-ATM] " format , ##args)
-#define uea_warn(usb_dev, format,args...) \
- dev_warn(&(usb_dev)->dev ,"[Ueagle-atm] " format, ##args)
+#define uea_warn(usb_dev, format, args...) \
+ dev_warn(&(usb_dev)->dev , "[Ueagle-atm] " format, ##args)
-#define uea_info(usb_dev, format,args...) \
- dev_info(&(usb_dev)->dev ,"[ueagle-atm] " format, ##args)
+#define uea_info(usb_dev, format, args...) \
+ dev_info(&(usb_dev)->dev , "[ueagle-atm] " format, ##args)
struct intr_pkt;
@@ -289,7 +289,7 @@
#define IS_ISDN(x) \
((x)->annex & ANNEXB)
-#define INS_TO_USBDEV(ins) ins->usb_dev
+#define INS_TO_USBDEV(ins) (ins->usb_dev)
#define GET_STATUS(data) \
((data >> 8) & 0xf)
@@ -304,7 +304,7 @@
* The FW_GET_BYTE() macro is provided only for consistency.
*/
-#define FW_GET_BYTE(p) *((__u8 *) (p))
+#define FW_GET_BYTE(p) (*((__u8 *) (p)))
#define FW_DIR "ueagle-atm/"
#define UEA_FW_NAME_MAX 30
@@ -315,7 +315,7 @@
#define ACK_TIMEOUT msecs_to_jiffies(3000)
-#define UEA_INTR_IFACE_NO 0
+#define UEA_INTR_IFACE_NO 0
#define UEA_US_IFACE_NO 1
#define UEA_DS_IFACE_NO 2
@@ -326,9 +326,9 @@
#define UEA_INTR_PIPE 0x04
#define UEA_ISO_DATA_PIPE 0x08
-#define UEA_E1_SET_BLOCK 0x0001
+#define UEA_E1_SET_BLOCK 0x0001
#define UEA_E4_SET_BLOCK 0x002c
-#define UEA_SET_MODE 0x0003
+#define UEA_SET_MODE 0x0003
#define UEA_SET_2183_DATA 0x0004
#define UEA_SET_TIMEOUT 0x0011
@@ -366,7 +366,7 @@
u8 string_header[E4_L1_STRING_HEADER];
u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
- u8 code [0];
+ u8 code[0];
} __attribute__ ((packed));
/* structures describing a block within a DSP page */
@@ -428,7 +428,8 @@
#define E4_MODEMREADY 0x1
#define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
-#define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | ((st) & 0xf) << 4 | ((s) & 0xf))
+#define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | \
+ ((st) & 0xf) << 4 | ((s) & 0xf))
#define E1_MAKESA(a, b, c, d) \
(((c) & 0xff) << 24 | \
@@ -473,7 +474,7 @@
__be16 wFunction;
__be16 wOffset;
__be16 wAddress;
- __be32 dwData [6];
+ __be32 dwData[6];
} __attribute__ ((packed));
/* structures representing swap information */
@@ -534,11 +535,13 @@
static struct usb_driver uea_driver;
static DEFINE_MUTEX(uea_mutex);
-static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III", "Eagle IV"};
+static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III",
+ "Eagle IV"};
static int modem_index;
static unsigned int debug;
-static unsigned int altsetting[NB_MODEM] = {[0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
+static unsigned int altsetting[NB_MODEM] = {
+ [0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
static int sync_wait[NB_MODEM];
static char *cmv_file[NB_MODEM];
static int annex[NB_MODEM];
@@ -555,7 +558,7 @@
"file name with configuration and management variables");
module_param_array(annex, uint, NULL, 0644);
MODULE_PARM_DESC(annex,
- "manually set annex a/b (0=auto, 1=annex a, 2=annex b)");
+ "manually set annex a/b (0=auto, 1=annex a, 2=annex b)");
#define uea_wait(sc, cond, timeo) \
({ \
@@ -602,7 +605,8 @@
return (ret == size) ? 0 : -EIO;
}
-static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context)
+static void uea_upload_pre_firmware(const struct firmware *fw_entry,
+ void *context)
{
struct usb_device *usb = context;
const u8 *pfw;
@@ -707,7 +711,8 @@
}
ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
- GFP_KERNEL, usb, uea_upload_pre_firmware);
+ GFP_KERNEL, usb,
+ uea_upload_pre_firmware);
if (ret)
uea_err(usb, "firmware %s is not available\n", fw_name);
else
@@ -876,7 +881,7 @@
if (ret < 0) {
uea_err(INS_TO_USBDEV(sc),
"requesting firmware %s failed with error %d\n",
- dsp_name, ret);
+ dsp_name, ret);
return ret;
}
@@ -994,14 +999,17 @@
blockidx = &p->page_header[blockno];
blocksize = E4_PAGE_BYTES(blockidx->PageSize);
- blockoffset = sc->dsp_firm->data + le32_to_cpu(blockidx->PageOffset);
+ blockoffset = sc->dsp_firm->data + le32_to_cpu(
+ blockidx->PageOffset);
bi.dwSize = cpu_to_be32(blocksize);
bi.dwAddress = cpu_to_be32(le32_to_cpu(blockidx->PageAddress));
uea_dbg(INS_TO_USBDEV(sc),
- "sending block %u for DSP page %u size %u address %x\n",
- blockno, pageno, blocksize, le32_to_cpu(blockidx->PageAddress));
+ "sending block %u for DSP page "
+ "%u size %u address %x\n",
+ blockno, pageno, blocksize,
+ le32_to_cpu(blockidx->PageAddress));
/* send block info through the IDMA pipe */
if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
@@ -1042,7 +1050,8 @@
p = (struct l1_code *) sc->dsp_firm->data;
if (pageno >= le16_to_cpu(p->page_header[0].PageNumber)) {
- uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
+ uea_err(INS_TO_USBDEV(sc), "invalid DSP "
+ "page %u requested\n", pageno);
return;
}
@@ -1059,7 +1068,7 @@
__uea_load_page_e4(sc, i, 1);
}
- uea_dbg(INS_TO_USBDEV(sc),"sending start bi\n");
+ uea_dbg(INS_TO_USBDEV(sc) , "sending start bi\n");
bi.wHdr = cpu_to_be16(UEA_BIHDR);
bi.bBootPage = 0;
@@ -1139,8 +1148,10 @@
uea_enters(INS_TO_USBDEV(sc));
uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
"offset : 0x%04x, data : 0x%08x\n",
- E1_FUNCTION_TYPE(function), E1_FUNCTION_SUBTYPE(function),
- E1_GETSA1(address), E1_GETSA2(address), E1_GETSA3(address),
+ E1_FUNCTION_TYPE(function),
+ E1_FUNCTION_SUBTYPE(function),
+ E1_GETSA1(address), E1_GETSA2(address),
+ E1_GETSA3(address),
E1_GETSA4(address), offset, data);
/* we send a request, but we expect a reply */
@@ -1157,7 +1168,8 @@
cmv.wOffsetAddress = cpu_to_le16(offset);
put_unaligned_le32(data >> 16 | data << 16, &cmv.dwData);
- ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START, sizeof(cmv), &cmv);
+ ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START,
+ sizeof(cmv), &cmv);
if (ret < 0)
return ret;
ret = wait_cmv_ack(sc);
@@ -1191,7 +1203,8 @@
cmv.wOffset = cpu_to_be16(offset);
cmv.dwData[0] = cpu_to_be32(data);
- ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START, sizeof(cmv), &cmv);
+ ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START,
+ sizeof(cmv), &cmv);
if (ret < 0)
return ret;
ret = wait_cmv_ack(sc);
@@ -1208,7 +1221,7 @@
uea_err(INS_TO_USBDEV(sc),
"reading cmv failed with error %d\n", ret);
else
- *data = sc->data;
+ *data = sc->data;
return ret;
}
@@ -1216,13 +1229,14 @@
static inline int uea_read_cmv_e4(struct uea_softc *sc,
u8 size, u16 group, u16 address, u16 offset, u32 *data)
{
- int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS, E4_REQUESTREAD, size),
+ int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
+ E4_REQUESTREAD, size),
group, address, offset, 0);
if (ret < 0)
uea_err(INS_TO_USBDEV(sc),
"reading cmv failed with error %d\n", ret);
else {
- *data = sc->data;
+ *data = sc->data;
/* size is in 16-bit word quantities */
if (size > 2)
*(data + 1) = sc->data1;
@@ -1245,7 +1259,8 @@
static inline int uea_write_cmv_e4(struct uea_softc *sc,
u8 size, u16 group, u16 address, u16 offset, u32 data)
{
- int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS, E4_REQUESTWRITE, size),
+ int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
+ E4_REQUESTWRITE, size),
group, address, offset, data);
if (ret < 0)
uea_err(INS_TO_USBDEV(sc),
@@ -1442,27 +1457,29 @@
return ret;
switch (sc->stats.phy.state) {
- case 0x0: /* not yet synchronized */
- case 0x1:
- case 0x3:
- case 0x4:
- uea_dbg(INS_TO_USBDEV(sc), "modem not yet synchronized\n");
- return 0;
- case 0x5: /* initialization */
- case 0x6:
- case 0x9:
- case 0xa:
- uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
- return 0;
- case 0x2: /* fail ... */
- uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
- " (may be try other cmv/dsp)\n");
- return -EAGAIN;
- case 0x7: /* operational */
- break;
- default:
- uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n", sc->stats.phy.state);
- return 0;
+ case 0x0: /* not yet synchronized */
+ case 0x1:
+ case 0x3:
+ case 0x4:
+ uea_dbg(INS_TO_USBDEV(sc), "modem not yet "
+ "synchronized\n");
+ return 0;
+ case 0x5: /* initialization */
+ case 0x6:
+ case 0x9:
+ case 0xa:
+ uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
+ return 0;
+ case 0x2: /* fail ... */
+ uea_info(INS_TO_USBDEV(sc), "modem synchronization "
+ "failed (may be try other cmv/dsp)\n");
+ return -EAGAIN;
+ case 0x7: /* operational */
+ break;
+ default:
+ uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n",
+ sc->stats.phy.state);
+ return 0;
}
if (data != 7) {
@@ -1502,9 +1519,9 @@
if (sc->stats.phy.flags) {
uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
sc->stats.phy.flags);
- if (sc->stats.phy.flags & 1) //delineation LOSS
+ if (sc->stats.phy.flags & 1) /* delineation LOSS */
return -EAGAIN;
- if (sc->stats.phy.flags & 0x4000) //Reset Flag
+ if (sc->stats.phy.flags & 0x4000) /* Reset Flag */
return -EAGAIN;
return 0;
}
@@ -1618,7 +1635,8 @@
if (ret < 0) {
/* if caller can handle old version, try to provide it */
if (*ver == 1) {
- uea_warn(INS_TO_USBDEV(sc), "requesting firmware %s failed, "
+ uea_warn(INS_TO_USBDEV(sc), "requesting "
+ "firmware %s failed, "
"try to get older cmvs\n", cmv_name);
return request_cmvs_old(sc, cmvs, fw);
}
@@ -1632,8 +1650,8 @@
data = (u8 *) (*fw)->data;
if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
if (*ver == 1) {
- uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted, "
- "try to get older cmvs\n", cmv_name);
+ uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted,"
+ " try to get older cmvs\n", cmv_name);
release_firmware(*fw);
return request_cmvs_old(sc, cmvs, fw);
}
@@ -1670,7 +1688,7 @@
int i, ret, len;
void *cmvs_ptr;
const struct firmware *cmvs_fw;
- int ver = 1; // we can handle v1 cmv firmware version;
+ int ver = 1; /* we can handle v1 cmv firmware version; */
/* Enter in R-IDLE (cmv) until instructed otherwise */
ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
@@ -1685,7 +1703,7 @@
sc->stats.phy.firmid);
/* get options */
- ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
+ ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
if (ret < 0)
return ret;
@@ -1697,9 +1715,10 @@
"please update your firmware\n");
for (i = 0; i < len; i++) {
- ret = uea_write_cmv_e1(sc, get_unaligned_le32(&cmvs_v1[i].address),
- get_unaligned_le16(&cmvs_v1[i].offset),
- get_unaligned_le32(&cmvs_v1[i].data));
+ ret = uea_write_cmv_e1(sc,
+ get_unaligned_le32(&cmvs_v1[i].address),
+ get_unaligned_le16(&cmvs_v1[i].offset),
+ get_unaligned_le32(&cmvs_v1[i].data));
if (ret < 0)
goto out;
}
@@ -1707,9 +1726,10 @@
struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
for (i = 0; i < len; i++) {
- ret = uea_write_cmv_e1(sc, get_unaligned_le32(&cmvs_v2[i].address),
- (u16) get_unaligned_le32(&cmvs_v2[i].offset),
- get_unaligned_le32(&cmvs_v2[i].data));
+ ret = uea_write_cmv_e1(sc,
+ get_unaligned_le32(&cmvs_v2[i].address),
+ (u16) get_unaligned_le32(&cmvs_v2[i].offset),
+ get_unaligned_le32(&cmvs_v2[i].data));
if (ret < 0)
goto out;
}
@@ -1722,7 +1742,8 @@
/* Enter in R-ACT-REQ */
ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
- uea_info(INS_TO_USBDEV(sc), "modem started, waiting synchronization...\n");
+ uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
+ "synchronization...\n");
out:
release_firmware(cmvs_fw);
return ret;
@@ -1733,7 +1754,7 @@
int i, ret, len;
void *cmvs_ptr;
const struct firmware *cmvs_fw;
- int ver = 2; // we can only handle v2 cmv firmware version;
+ int ver = 2; /* we can only handle v2 cmv firmware version; */
/* Enter in R-IDLE (cmv) until instructed otherwise */
ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
@@ -1750,7 +1771,7 @@
/* get options */
- ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
+ ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
if (ret < 0)
return ret;
@@ -1760,10 +1781,10 @@
for (i = 0; i < len; i++) {
ret = uea_write_cmv_e4(sc, 1,
- get_unaligned_le32(&cmvs_v2[i].group),
- get_unaligned_le32(&cmvs_v2[i].address),
- get_unaligned_le32(&cmvs_v2[i].offset),
- get_unaligned_le32(&cmvs_v2[i].data));
+ get_unaligned_le32(&cmvs_v2[i].group),
+ get_unaligned_le32(&cmvs_v2[i].address),
+ get_unaligned_le32(&cmvs_v2[i].offset),
+ get_unaligned_le32(&cmvs_v2[i].data));
if (ret < 0)
goto out;
}
@@ -1776,7 +1797,8 @@
/* Enter in R-ACT-REQ */
ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
- uea_info(INS_TO_USBDEV(sc), "modem started, waiting synchronization...\n");
+ uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
+ "synchronization...\n");
out:
release_firmware(cmvs_fw);
return ret;
@@ -1812,7 +1834,7 @@
uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
- /* enter reset mode */
+ /* enter reset mode */
uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
/* original driver use 200ms, but windows driver use 100ms */
@@ -1824,7 +1846,7 @@
uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
- /* clear tx and rx mailboxes */
+ /* clear tx and rx mailboxes */
uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
@@ -1835,9 +1857,11 @@
return ret;
if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
- sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE, E4_MODEMREADY, 1);
+ sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
+ E4_MODEMREADY, 1);
else
- sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE, E1_MODEMREADY);
+ sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
+ E1_MODEMREADY);
/* demask interrupt */
sc->booting = 0;
@@ -1937,7 +1961,8 @@
value = 0;
ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
if (ret < 0)
- uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret);
+ uea_err(sc->usb_dev, "elsa de-assert failed with error"
+ " %d\n", ret);
err1:
release_firmware(fw_entry);
@@ -1966,13 +1991,15 @@
if (UEA_CHIP_VERSION(sc) == ADI930
&& cmv->bFunction == E1_MAKEFUNCTION(2, 2)) {
cmv->wIndex = cpu_to_le16(dsc->idx);
- put_unaligned_le32(dsc->address, &cmv->dwSymbolicAddress);
+ put_unaligned_le32(dsc->address,
+ &cmv->dwSymbolicAddress);
cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
} else
goto bad2;
}
- if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE, E1_MODEMREADY)) {
+ if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
+ E1_MODEMREADY)) {
wake_up_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return;
@@ -2021,7 +2048,8 @@
if (be16_to_cpu(cmv->wFunction) != dsc->function)
goto bad2;
- if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE, E4_MODEMREADY, 1)) {
+ if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
+ E4_MODEMREADY, 1)) {
wake_up_cmv_ack(sc);
uea_leaves(INS_TO_USBDEV(sc));
return;
@@ -2048,14 +2076,16 @@
return;
}
-static void uea_schedule_load_page_e1(struct uea_softc *sc, struct intr_pkt *intr)
+static void uea_schedule_load_page_e1(struct uea_softc *sc,
+ struct intr_pkt *intr)
{
sc->pageno = intr->e1_bSwapPageNo;
sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
queue_work(sc->work_q, &sc->task);
}
-static void uea_schedule_load_page_e4(struct uea_softc *sc, struct intr_pkt *intr)
+static void uea_schedule_load_page_e4(struct uea_softc *sc,
+ struct intr_pkt *intr)
{
sc->pageno = intr->e4_bSwapPageNo;
queue_work(sc->work_q, &sc->task);
@@ -2263,8 +2293,8 @@
static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
-static ssize_t read_human_status(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t read_human_status(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
int ret = -ENODEV;
int modem_state;
@@ -2289,7 +2319,7 @@
case 0xa:
modem_state = 1;
break;
- case 0x7: /* operational */
+ case 0x7: /* operational */
modem_state = 2;
break;
case 0x2: /* fail ... */
@@ -2324,7 +2354,8 @@
return ret;
}
-static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO, read_human_status, NULL);
+static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO,
+ read_human_status, NULL);
static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -2358,25 +2389,25 @@
static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
-#define UEA_ATTR(name, reset) \
+#define UEA_ATTR(name, reset) \
\
-static ssize_t read_##name(struct device *dev, \
+static ssize_t read_##name(struct device *dev, \
struct device_attribute *attr, char *buf) \
-{ \
- int ret = -ENODEV; \
- struct uea_softc *sc; \
- \
- mutex_lock(&uea_mutex); \
+{ \
+ int ret = -ENODEV; \
+ struct uea_softc *sc; \
+ \
+ mutex_lock(&uea_mutex); \
sc = dev_to_uea(dev); \
- if (!sc) \
- goto out; \
+ if (!sc) \
+ goto out; \
ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \
if (reset) \
sc->stats.phy.name = 0; \
-out: \
- mutex_unlock(&uea_mutex); \
- return ret; \
-} \
+out: \
+ mutex_unlock(&uea_mutex); \
+ return ret; \
+} \
\
static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
@@ -2527,12 +2558,14 @@
else if (sc->driver_info & AUTO_ANNEX_B)
sc->annex = ANNEXB;
else
- sc->annex = (le16_to_cpu(sc->usb_dev->descriptor.bcdDevice) & 0x80)?ANNEXB:ANNEXA;
+ sc->annex = (le16_to_cpu
+ (sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;
alt = altsetting[sc->modem_index];
/* ADI930 don't support iso */
if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
- if (alt <= 8 && usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
+ if (alt <= 8 &&
+ usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
uea_info(usb, "using iso mode\n");
usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
@@ -2621,40 +2654,74 @@
* List of supported VID/PID
*/
static const struct usb_device_id uea_ids[] = {
- {USB_DEVICE(ANALOG_VID, ADI930_PID_PREFIRM), .driver_info = ADI930 | PREFIRM},
- {USB_DEVICE(ANALOG_VID, ADI930_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PREFIRM), .driver_info = EAGLE_IV | PREFIRM},
- {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PSTFIRM), .driver_info = EAGLE_IV | PSTFIRM},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
- {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
- {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM), .driver_info = ADI930 | PREFIRM},
- {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM},
- {USB_DEVICE(ELSA_VID, ELSA_PID_A_PREFIRM), .driver_info = ADI930 | PREFIRM},
- {USB_DEVICE(ELSA_VID, ELSA_PID_A_PSTFIRM), .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
- {USB_DEVICE(ELSA_VID, ELSA_PID_B_PREFIRM), .driver_info = ADI930 | PREFIRM},
- {USB_DEVICE(ELSA_VID, ELSA_PID_B_PSTFIRM), .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
- {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
- {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
- {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
- {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
- {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
+ {USB_DEVICE(ANALOG_VID, ADI930_PID_PREFIRM),
+ .driver_info = ADI930 | PREFIRM},
+ {USB_DEVICE(ANALOG_VID, ADI930_PID_PSTFIRM),
+ .driver_info = ADI930 | PSTFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PREFIRM),
+ .driver_info = EAGLE_II | PREFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PSTFIRM),
+ .driver_info = EAGLE_II | PSTFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PREFIRM),
+ .driver_info = EAGLE_II | PREFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PSTFIRM),
+ .driver_info = EAGLE_II | PSTFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PREFIRM),
+ .driver_info = EAGLE_III | PREFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PSTFIRM),
+ .driver_info = EAGLE_III | PSTFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PREFIRM),
+ .driver_info = EAGLE_IV | PREFIRM},
+ {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PSTFIRM),
+ .driver_info = EAGLE_IV | PSTFIRM},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PREFIRM),
+ .driver_info = EAGLE_II | PREFIRM},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PSTFIRM),
+ .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PREFIRM),
+ .driver_info = EAGLE_II | PREFIRM},
+ {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PSTFIRM),
+ .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
+ {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM),
+ .driver_info = ADI930 | PREFIRM},
+ {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM),
+ .driver_info = ADI930 | PSTFIRM},
+ {USB_DEVICE(ELSA_VID, ELSA_PID_A_PREFIRM),
+ .driver_info = ADI930 | PREFIRM},
+ {USB_DEVICE(ELSA_VID, ELSA_PID_A_PSTFIRM),
+ .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
+ {USB_DEVICE(ELSA_VID, ELSA_PID_B_PREFIRM),
+ .driver_info = ADI930 | PREFIRM},
+ {USB_DEVICE(ELSA_VID, ELSA_PID_B_PSTFIRM),
+ .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
+ {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
+ {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
+ {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
+ {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),
+ .driver_info = EAGLE_I | PREFIRM},
+ {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),
+ .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
{}
};
diff --git a/drivers/usb/c67x00/c67x00-hcd.h b/drivers/usb/c67x00/c67x00-hcd.h
index e8c6d94..74e4462 100644
--- a/drivers/usb/c67x00/c67x00-hcd.h
+++ b/drivers/usb/c67x00/c67x00-hcd.h
@@ -28,7 +28,7 @@
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/usb.h>
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
#include "c67x00.h"
/*
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 5e1a253..0c2f14f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -892,7 +892,7 @@
struct usb_device *usb_dev = interface_to_usbdev(acm->control);
for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++)
- usb_buffer_free(usb_dev, acm->writesize, wb->buf, wb->dmah);
+ usb_free_coherent(usb_dev, acm->writesize, wb->buf, wb->dmah);
}
static void acm_read_buffers_free(struct acm *acm)
@@ -901,8 +901,8 @@
int i, n = acm->rx_buflimit;
for (i = 0; i < n; i++)
- usb_buffer_free(usb_dev, acm->readsize,
- acm->rb[i].base, acm->rb[i].dma);
+ usb_free_coherent(usb_dev, acm->readsize,
+ acm->rb[i].base, acm->rb[i].dma);
}
/* Little helper: write buffers allocate */
@@ -912,13 +912,13 @@
struct acm_wb *wb;
for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) {
- wb->buf = usb_buffer_alloc(acm->dev, acm->writesize, GFP_KERNEL,
+ wb->buf = usb_alloc_coherent(acm->dev, acm->writesize, GFP_KERNEL,
&wb->dmah);
if (!wb->buf) {
while (i != 0) {
--i;
--wb;
- usb_buffer_free(acm->dev, acm->writesize,
+ usb_free_coherent(acm->dev, acm->writesize,
wb->buf, wb->dmah);
}
return -ENOMEM;
@@ -1177,7 +1177,7 @@
tty_port_init(&acm->port);
acm->port.ops = &acm_port_ops;
- buf = usb_buffer_alloc(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
+ buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
if (!buf) {
dev_dbg(&intf->dev, "out of memory (ctrl buffer alloc)\n");
goto alloc_fail2;
@@ -1210,11 +1210,11 @@
for (i = 0; i < num_rx_buf; i++) {
struct acm_rb *rb = &(acm->rb[i]);
- rb->base = usb_buffer_alloc(acm->dev, readsize,
+ rb->base = usb_alloc_coherent(acm->dev, readsize,
GFP_KERNEL, &rb->dma);
if (!rb->base) {
dev_dbg(&intf->dev,
- "out of memory (read bufs usb_buffer_alloc)\n");
+ "out of memory (read bufs usb_alloc_coherent)\n");
goto alloc_fail7;
}
}
@@ -1306,7 +1306,7 @@
alloc_fail5:
acm_write_buffers_free(acm);
alloc_fail4:
- usb_buffer_free(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
+ usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
alloc_fail2:
kfree(acm);
alloc_fail:
@@ -1356,8 +1356,8 @@
stop_data_traffic(acm);
acm_write_buffers_free(acm);
- usb_buffer_free(usb_dev, acm->ctrlsize, acm->ctrl_buffer,
- acm->ctrl_dma);
+ usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer,
+ acm->ctrl_dma);
acm_read_buffers_free(acm);
if (!acm->combined_interfaces)
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 4a8e87e..5eeb570 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -124,8 +124,8 @@
unsigned char clocal; /* termios CLOCAL */
unsigned int ctrl_caps; /* control capabilities from the class specific header */
unsigned int susp_count; /* number of suspended interfaces */
- int combined_interfaces:1; /* control and data collapsed */
- int is_int_ep:1; /* interrupt endpoints contrary to spec used */
+ unsigned int combined_interfaces:1; /* control and data collapsed */
+ unsigned int is_int_ep:1; /* interrupt endpoints contrary to spec used */
u8 bInterval;
struct acm_wb *delayed_wb; /* write queued for a device about to be woken */
};
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 189141c..094c76b 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -276,14 +276,14 @@
static void cleanup(struct wdm_device *desc)
{
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->wMaxPacketSize,
- desc->sbuf,
- desc->validity->transfer_dma);
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->wMaxCommand,
- desc->inbuf,
- desc->response->transfer_dma);
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->wMaxPacketSize,
+ desc->sbuf,
+ desc->validity->transfer_dma);
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->wMaxCommand,
+ desc->inbuf,
+ desc->response->transfer_dma);
kfree(desc->orq);
kfree(desc->irq);
kfree(desc->ubuf);
@@ -705,17 +705,17 @@
if (!desc->ubuf)
goto err;
- desc->sbuf = usb_buffer_alloc(interface_to_usbdev(intf),
+ desc->sbuf = usb_alloc_coherent(interface_to_usbdev(intf),
desc->wMaxPacketSize,
GFP_KERNEL,
&desc->validity->transfer_dma);
if (!desc->sbuf)
goto err;
- desc->inbuf = usb_buffer_alloc(interface_to_usbdev(intf),
- desc->bMaxPacketSize0,
- GFP_KERNEL,
- &desc->response->transfer_dma);
+ desc->inbuf = usb_alloc_coherent(interface_to_usbdev(intf),
+ desc->bMaxPacketSize0,
+ GFP_KERNEL,
+ &desc->response->transfer_dma);
if (!desc->inbuf)
goto err2;
@@ -742,15 +742,15 @@
return rv;
err3:
usb_set_intfdata(intf, NULL);
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->bMaxPacketSize0,
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->bMaxPacketSize0,
desc->inbuf,
desc->response->transfer_dma);
err2:
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->wMaxPacketSize,
- desc->sbuf,
- desc->validity->transfer_dma);
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->wMaxPacketSize,
+ desc->sbuf,
+ desc->validity->transfer_dma);
err:
free_urbs(desc);
kfree(desc->ubuf);
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 93b5f85..2250095 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -27,7 +27,7 @@
* v0.11 - add proto_bias option (Pete Zaitcev)
* v0.12 - add hpoj.sourceforge.net ioctls (David Paschal)
* v0.13 - alloc space for statusbuf (<status> not on stack);
- * use usb_buffer_alloc() for read buf & write buf;
+ * use usb_alloc_coherent() for read buf & write buf;
* none - Maintained in Linux kernel after v0.13
*/
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index 3ba2fff..2c69654 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -14,7 +14,7 @@
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/usb.h>
-#include "hcd.h"
+#include <linux/usb/hcd.h>
/*
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 0d3af6a..83126b0 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -1,12 +1,14 @@
#include <linux/usb.h>
#include <linux/usb/ch9.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/quirks.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <asm/byteorder.h>
#include "usb.h"
-#include "hcd.h"
+
#define USB_MAXALTSETTING 128 /* Hard limit */
#define USB_MAXENDPOINTS 30 /* Hard limit */
@@ -19,32 +21,6 @@
return (n == 1 ? "" : "s");
}
-/* FIXME: this is a kludge */
-static int find_next_descriptor_more(unsigned char *buffer, int size,
- int dt1, int dt2, int dt3, int *num_skipped)
-{
- struct usb_descriptor_header *h;
- int n = 0;
- unsigned char *buffer0 = buffer;
-
- /* Find the next descriptor of type dt1 or dt2 or dt3 */
- while (size > 0) {
- h = (struct usb_descriptor_header *) buffer;
- if (h->bDescriptorType == dt1 || h->bDescriptorType == dt2 ||
- h->bDescriptorType == dt3)
- break;
- buffer += h->bLength;
- size -= h->bLength;
- ++n;
- }
-
- /* Store the number of descriptors skipped and return the
- * number of bytes skipped */
- if (num_skipped)
- *num_skipped = n;
- return buffer - buffer0;
-}
-
static int find_next_descriptor(unsigned char *buffer, int size,
int dt1, int dt2, int *num_skipped)
{
@@ -69,47 +45,41 @@
return buffer - buffer0;
}
-static int usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
+static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
int inum, int asnum, struct usb_host_endpoint *ep,
- int num_ep, unsigned char *buffer, int size)
+ unsigned char *buffer, int size)
{
- unsigned char *buffer_start = buffer;
- struct usb_ss_ep_comp_descriptor *desc;
- int retval;
- int num_skipped;
+ struct usb_ss_ep_comp_descriptor *desc;
int max_tx;
- int i;
+ /* The SuperSpeed endpoint companion descriptor is supposed to
+ * be the first thing immediately following the endpoint descriptor.
+ */
desc = (struct usb_ss_ep_comp_descriptor *) buffer;
- if (desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP) {
+ if (desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP ||
+ size < USB_DT_SS_EP_COMP_SIZE) {
dev_warn(ddev, "No SuperSpeed endpoint companion for config %d "
" interface %d altsetting %d ep %d: "
"using minimum values\n",
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- /*
- * The next descriptor is for an Endpoint or Interface,
- * no extra descriptors to copy into the companion structure,
- * and we didn't eat up any of the buffer.
- */
- return 0;
- }
- memcpy(&ep->ss_ep_comp->desc, desc, USB_DT_SS_EP_COMP_SIZE);
- desc = &ep->ss_ep_comp->desc;
- buffer += desc->bLength;
- size -= desc->bLength;
- /* Eat up the other descriptors we don't care about */
- ep->ss_ep_comp->extra = buffer;
- i = find_next_descriptor(buffer, size, USB_DT_ENDPOINT,
- USB_DT_INTERFACE, &num_skipped);
- ep->ss_ep_comp->extralen = i;
- buffer += i;
- size -= i;
- retval = buffer - buffer_start;
- if (num_skipped > 0)
- dev_dbg(ddev, "skipped %d descriptor%s after %s\n",
- num_skipped, plural(num_skipped),
- "SuperSpeed endpoint companion");
+ /* Fill in some default values.
+ * Leave bmAttributes as zero, which will mean no streams for
+ * bulk, and isoc won't support multiple bursts of packets.
+ * With bursts of only one packet, and a Mult of 1, the max
+ * amount of data moved per endpoint service interval is one
+ * packet.
+ */
+ ep->ss_ep_comp.bLength = USB_DT_SS_EP_COMP_SIZE;
+ ep->ss_ep_comp.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
+ if (usb_endpoint_xfer_isoc(&ep->desc) ||
+ usb_endpoint_xfer_int(&ep->desc))
+ ep->ss_ep_comp.wBytesPerInterval =
+ ep->desc.wMaxPacketSize;
+ return;
+ }
+
+ memcpy(&ep->ss_ep_comp, desc, USB_DT_SS_EP_COMP_SIZE);
/* Check the various values */
if (usb_endpoint_xfer_control(&ep->desc) && desc->bMaxBurst != 0) {
@@ -117,47 +87,48 @@
"config %d interface %d altsetting %d ep %d: "
"setting to zero\n", desc->bMaxBurst,
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- desc->bMaxBurst = 0;
- }
- if (desc->bMaxBurst > 15) {
+ ep->ss_ep_comp.bMaxBurst = 0;
+ } else if (desc->bMaxBurst > 15) {
dev_warn(ddev, "Endpoint with bMaxBurst = %d in "
"config %d interface %d altsetting %d ep %d: "
"setting to 15\n", desc->bMaxBurst,
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- desc->bMaxBurst = 15;
+ ep->ss_ep_comp.bMaxBurst = 15;
}
- if ((usb_endpoint_xfer_control(&ep->desc) || usb_endpoint_xfer_int(&ep->desc))
- && desc->bmAttributes != 0) {
+
+ if ((usb_endpoint_xfer_control(&ep->desc) ||
+ usb_endpoint_xfer_int(&ep->desc)) &&
+ desc->bmAttributes != 0) {
dev_warn(ddev, "%s endpoint with bmAttributes = %d in "
"config %d interface %d altsetting %d ep %d: "
"setting to zero\n",
usb_endpoint_xfer_control(&ep->desc) ? "Control" : "Bulk",
desc->bmAttributes,
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- desc->bmAttributes = 0;
- }
- if (usb_endpoint_xfer_bulk(&ep->desc) && desc->bmAttributes > 16) {
+ ep->ss_ep_comp.bmAttributes = 0;
+ } else if (usb_endpoint_xfer_bulk(&ep->desc) &&
+ desc->bmAttributes > 16) {
dev_warn(ddev, "Bulk endpoint with more than 65536 streams in "
"config %d interface %d altsetting %d ep %d: "
"setting to max\n",
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- desc->bmAttributes = 16;
- }
- if (usb_endpoint_xfer_isoc(&ep->desc) && desc->bmAttributes > 2) {
+ ep->ss_ep_comp.bmAttributes = 16;
+ } else if (usb_endpoint_xfer_isoc(&ep->desc) &&
+ desc->bmAttributes > 2) {
dev_warn(ddev, "Isoc endpoint has Mult of %d in "
"config %d interface %d altsetting %d ep %d: "
"setting to 3\n", desc->bmAttributes + 1,
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- desc->bmAttributes = 2;
+ ep->ss_ep_comp.bmAttributes = 2;
}
- if (usb_endpoint_xfer_isoc(&ep->desc)) {
+
+ if (usb_endpoint_xfer_isoc(&ep->desc))
max_tx = ep->desc.wMaxPacketSize * (desc->bMaxBurst + 1) *
(desc->bmAttributes + 1);
- } else if (usb_endpoint_xfer_int(&ep->desc)) {
+ else if (usb_endpoint_xfer_int(&ep->desc))
max_tx = ep->desc.wMaxPacketSize * (desc->bMaxBurst + 1);
- } else {
- goto valid;
- }
+ else
+ max_tx = 999999;
if (desc->wBytesPerInterval > max_tx) {
dev_warn(ddev, "%s endpoint with wBytesPerInterval of %d in "
"config %d interface %d altsetting %d ep %d: "
@@ -166,10 +137,8 @@
desc->wBytesPerInterval,
cfgno, inum, asnum, ep->desc.bEndpointAddress,
max_tx);
- desc->wBytesPerInterval = max_tx;
+ ep->ss_ep_comp.wBytesPerInterval = max_tx;
}
-valid:
- return retval;
}
static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
@@ -291,61 +260,19 @@
cfgno, inum, asnum, d->bEndpointAddress,
maxp);
}
- /* Allocate room for and parse any SS endpoint companion descriptors */
- if (to_usb_device(ddev)->speed == USB_SPEED_SUPER) {
- endpoint->extra = buffer;
- i = find_next_descriptor_more(buffer, size, USB_DT_SS_ENDPOINT_COMP,
- USB_DT_ENDPOINT, USB_DT_INTERFACE, &n);
- endpoint->extralen = i;
- buffer += i;
- size -= i;
- /* Allocate space for the SS endpoint companion descriptor */
- endpoint->ss_ep_comp = kzalloc(sizeof(struct usb_host_ss_ep_comp),
- GFP_KERNEL);
- if (!endpoint->ss_ep_comp)
- return -ENOMEM;
+ /* Parse a possible SuperSpeed endpoint companion descriptor */
+ if (to_usb_device(ddev)->speed == USB_SPEED_SUPER)
+ usb_parse_ss_endpoint_companion(ddev, cfgno,
+ inum, asnum, endpoint, buffer, size);
- /* Fill in some default values (may be overwritten later) */
- endpoint->ss_ep_comp->desc.bLength = USB_DT_SS_EP_COMP_SIZE;
- endpoint->ss_ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
- endpoint->ss_ep_comp->desc.bMaxBurst = 0;
- /*
- * Leave bmAttributes as zero, which will mean no streams for
- * bulk, and isoc won't support multiple bursts of packets.
- * With bursts of only one packet, and a Mult of 1, the max
- * amount of data moved per endpoint service interval is one
- * packet.
- */
- if (usb_endpoint_xfer_isoc(&endpoint->desc) ||
- usb_endpoint_xfer_int(&endpoint->desc))
- endpoint->ss_ep_comp->desc.wBytesPerInterval =
- endpoint->desc.wMaxPacketSize;
-
- if (size > 0) {
- retval = usb_parse_ss_endpoint_companion(ddev, cfgno,
- inum, asnum, endpoint, num_ep, buffer,
- size);
- if (retval >= 0) {
- buffer += retval;
- retval = buffer - buffer0;
- }
- } else {
- dev_warn(ddev, "config %d interface %d altsetting %d "
- "endpoint 0x%X has no "
- "SuperSpeed companion descriptor\n",
- cfgno, inum, asnum, d->bEndpointAddress);
- retval = buffer - buffer0;
- }
- } else {
- /* Skip over any Class Specific or Vendor Specific descriptors;
- * find the next endpoint or interface descriptor */
- endpoint->extra = buffer;
- i = find_next_descriptor(buffer, size, USB_DT_ENDPOINT,
- USB_DT_INTERFACE, &n);
- endpoint->extralen = i;
- retval = buffer - buffer0 + i;
- }
+ /* Skip over any Class Specific or Vendor Specific descriptors;
+ * find the next endpoint or interface descriptor */
+ endpoint->extra = buffer;
+ i = find_next_descriptor(buffer, size, USB_DT_ENDPOINT,
+ USB_DT_INTERFACE, &n);
+ endpoint->extralen = i;
+ retval = buffer - buffer0 + i;
if (n > 0)
dev_dbg(ddev, "skipped %d descriptor%s after %s\n",
n, plural(n), "endpoint");
@@ -478,9 +405,10 @@
return buffer - buffer0 + i;
}
-static int usb_parse_configuration(struct device *ddev, int cfgidx,
+static int usb_parse_configuration(struct usb_device *dev, int cfgidx,
struct usb_host_config *config, unsigned char *buffer, int size)
{
+ struct device *ddev = &dev->dev;
unsigned char *buffer0 = buffer;
int cfgno;
int nintf, nintf_orig;
@@ -549,6 +477,16 @@
}
inum = d->bInterfaceNumber;
+
+ if ((dev->quirks & USB_QUIRK_HONOR_BNUMINTERFACES) &&
+ n >= nintf_orig) {
+ dev_warn(ddev, "config %d has more interface "
+ "descriptors, than it declares in "
+ "bNumInterfaces, ignoring interface "
+ "number: %d\n", cfgno, inum);
+ continue;
+ }
+
if (inum >= nintf_orig)
dev_warn(ddev, "config %d has an invalid "
"interface number: %d but max is %d\n",
@@ -722,7 +660,6 @@
int ncfg = dev->descriptor.bNumConfigurations;
int result = 0;
unsigned int cfgno, length;
- unsigned char *buffer;
unsigned char *bigbuffer;
struct usb_config_descriptor *desc;
@@ -751,17 +688,16 @@
if (!dev->rawdescriptors)
goto err2;
- buffer = kmalloc(USB_DT_CONFIG_SIZE, GFP_KERNEL);
- if (!buffer)
+ desc = kmalloc(USB_DT_CONFIG_SIZE, GFP_KERNEL);
+ if (!desc)
goto err2;
- desc = (struct usb_config_descriptor *)buffer;
result = 0;
for (; cfgno < ncfg; cfgno++) {
/* We grab just the first descriptor so we know how long
* the whole configuration is */
result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
- buffer, USB_DT_CONFIG_SIZE);
+ desc, USB_DT_CONFIG_SIZE);
if (result < 0) {
dev_err(ddev, "unable to read config index %d "
"descriptor/%s: %d\n", cfgno, "start", result);
@@ -800,7 +736,7 @@
dev->rawdescriptors[cfgno] = bigbuffer;
- result = usb_parse_configuration(&dev->dev, cfgno,
+ result = usb_parse_configuration(dev, cfgno,
&dev->config[cfgno], bigbuffer, length);
if (result < 0) {
++cfgno;
@@ -810,7 +746,7 @@
result = 0;
err:
- kfree(buffer);
+ kfree(desc);
out_not_authorized:
dev->descriptor.bNumConfigurations = cfgno;
err2:
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 19bc03a..3449742 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -1,7 +1,8 @@
/*
* devices.c
* (C) Copyright 1999 Randy Dunlap.
- * (C) Copyright 1999,2000 Thomas Sailer <sailer@ife.ee.ethz.ch>. (proc file per device)
+ * (C) Copyright 1999,2000 Thomas Sailer <sailer@ife.ee.ethz.ch>.
+ * (proc file per device)
* (C) Copyright 1999 Deti Fliegl (new USB architecture)
*
* This program is free software; you can redistribute it and/or modify
@@ -55,11 +56,11 @@
#include <linux/usb.h>
#include <linux/smp_lock.h>
#include <linux/usbdevice_fs.h>
+#include <linux/usb/hcd.h>
#include <linux/mutex.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "usb.h"
-#include "hcd.h"
/* Define ALLOW_SERIAL_NUMBER if you want to see the serial number of devices */
#define ALLOW_SERIAL_NUMBER
@@ -138,8 +139,8 @@
char *class_name;
};
-static const struct class_info clas_info[] =
-{ /* max. 5 chars. per name string */
+static const struct class_info clas_info[] = {
+ /* max. 5 chars. per name string */
{USB_CLASS_PER_INTERFACE, ">ifc"},
{USB_CLASS_AUDIO, "audio"},
{USB_CLASS_COMM, "comm."},
@@ -191,8 +192,10 @@
if (speed == USB_SPEED_HIGH) {
switch (le16_to_cpu(desc->wMaxPacketSize) & (0x03 << 11)) {
- case 1 << 11: bandwidth = 2; break;
- case 2 << 11: bandwidth = 3; break;
+ case 1 << 11:
+ bandwidth = 2; break;
+ case 2 << 11:
+ bandwidth = 3; break;
}
}
@@ -200,7 +203,7 @@
switch (usb_endpoint_type(desc)) {
case USB_ENDPOINT_XFER_CONTROL:
type = "Ctrl";
- if (speed == USB_SPEED_HIGH) /* uframes per NAK */
+ if (speed == USB_SPEED_HIGH) /* uframes per NAK */
interval = desc->bInterval;
else
interval = 0;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 3466fdc..c2f62a3 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -43,6 +43,7 @@
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
+#include <linux/usb/hcd.h> /* for usbcore internals */
#include <linux/cdev.h>
#include <linux/notifier.h>
#include <linux/security.h>
@@ -50,9 +51,7 @@
#include <asm/byteorder.h>
#include <linux/moduleparam.h>
-#include "hcd.h" /* for usbcore internals */
#include "usb.h"
-#include "hub.h"
#define USB_MAXBUS 64
#define USB_DEVICE_MAX USB_MAXBUS * 128
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 2f3dc4c..ded550e 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -26,8 +26,9 @@
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/usb/quirks.h>
+#include <linux/usb/hcd.h>
#include <linux/pm_runtime.h>
-#include "hcd.h"
+
#include "usb.h"
@@ -333,7 +334,8 @@
usb_cancel_queued_reset(intf);
/* Unbound interfaces are always runtime-PM-disabled and -suspended */
- pm_runtime_disable(dev);
+ if (driver->supports_autosuspend)
+ pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
usb_autosuspend_device(udev);
@@ -388,7 +390,8 @@
intf->needs_remote_wakeup = 0;
/* Unbound interfaces are always runtime-PM-disabled and -suspended */
- pm_runtime_disable(dev);
+ if (driver->supports_autosuspend)
+ pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
/* Undo any residual pm_autopm_get_interface_* calls */
@@ -437,14 +440,17 @@
iface->condition = USB_INTERFACE_BOUND;
- /* Claimed interfaces are initially inactive (suspended). They are
- * runtime-PM-enabled only if the driver has autosuspend support.
- * They are sensitive to their children's power states.
+ /* Claimed interfaces are initially inactive (suspended) and
+ * runtime-PM-enabled, but only if the driver has autosuspend
+ * support. Otherwise they are marked active, to prevent the
+ * device from being autosuspended, but left disabled. In either
+ * case they are sensitive to their children's power states.
*/
- pm_runtime_set_suspended(dev);
pm_suspend_ignore_children(dev, false);
if (driver->supports_autosuspend)
pm_runtime_enable(dev);
+ else
+ pm_runtime_set_active(dev);
/* if interface was already added, bind now; else let
* the future device_add() bind it, bypassing probe()
@@ -1355,13 +1361,9 @@
*
* The caller must hold @udev's device lock.
*/
-int usb_enable_autosuspend(struct usb_device *udev)
+void usb_enable_autosuspend(struct usb_device *udev)
{
- if (udev->autosuspend_disabled) {
- udev->autosuspend_disabled = 0;
- usb_autosuspend_device(udev);
- }
- return 0;
+ pm_runtime_allow(&udev->dev);
}
EXPORT_SYMBOL_GPL(usb_enable_autosuspend);
@@ -1374,16 +1376,9 @@
*
* The caller must hold @udev's device lock.
*/
-int usb_disable_autosuspend(struct usb_device *udev)
+void usb_disable_autosuspend(struct usb_device *udev)
{
- int rc = 0;
-
- if (!udev->autosuspend_disabled) {
- rc = usb_autoresume_device(udev);
- if (rc == 0)
- udev->autosuspend_disabled = 1;
- }
- return rc;
+ pm_runtime_forbid(&udev->dev);
}
EXPORT_SYMBOL_GPL(usb_disable_autosuspend);
@@ -1485,9 +1480,6 @@
* 0, a delayed autosuspend request for @intf's device is attempted. The
* attempt may fail (see autosuspend_check()).
*
- * If the driver has set @intf->needs_remote_wakeup then autosuspend will
- * take place only if the device's remote-wakeup facility is enabled.
- *
* This routine can run only in process context.
*/
void usb_autopm_put_interface(struct usb_interface *intf)
@@ -1530,7 +1522,7 @@
atomic_dec(&intf->pm_usage_cnt);
pm_runtime_put_noidle(&intf->dev);
- if (!udev->autosuspend_disabled) {
+ if (udev->dev.power.runtime_auto) {
/* Optimization: Don't schedule a delayed autosuspend if
* the timer is already running and the expiration time
* wouldn't change.
@@ -1672,14 +1664,14 @@
/* Internal routine to check whether we may autosuspend a device. */
static int autosuspend_check(struct usb_device *udev)
{
- int i;
+ int w, i;
struct usb_interface *intf;
unsigned long suspend_time, j;
/* Fail if autosuspend is disabled, or any interfaces are in use, or
* any interface drivers require remote wakeup but it isn't available.
*/
- udev->do_remote_wakeup = device_may_wakeup(&udev->dev);
+ w = 0;
if (udev->actconfig) {
for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
intf = udev->actconfig->interface[i];
@@ -1693,12 +1685,7 @@
continue;
if (atomic_read(&intf->dev.power.usage_count) > 0)
return -EBUSY;
- if (intf->needs_remote_wakeup &&
- !udev->do_remote_wakeup) {
- dev_dbg(&udev->dev, "remote wakeup needed "
- "for autosuspend\n");
- return -EOPNOTSUPP;
- }
+ w |= intf->needs_remote_wakeup;
/* Don't allow autosuspend if the device will need
* a reset-resume and any of its interface drivers
@@ -1714,6 +1701,11 @@
}
}
}
+ if (w && !device_can_wakeup(&udev->dev)) {
+ dev_dbg(&udev->dev, "remote wakeup needed for autosuspend\n");
+ return -EOPNOTSUPP;
+ }
+ udev->do_remote_wakeup = w;
/* If everything is okay but the device hasn't been idle for long
* enough, queue a delayed autosuspend request.
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 2c95153..9a34ccb 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -18,8 +18,8 @@
*/
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include "usb.h"
-#include "hcd.h"
static inline const char *plural(int n)
{
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 1528653..1cf2d1e 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -21,6 +21,7 @@
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -33,7 +34,6 @@
#endif
#include "usb.h"
-#include "hcd.h"
/* PCI-based HCs are common, but plenty of non-PCI HCs are used too */
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 2f8cedd..12742f1 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -38,14 +38,12 @@
#include <asm/unaligned.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
-#include <linux/mutex.h>
#include <linux/pm_runtime.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include "usb.h"
-#include "hcd.h"
-#include "hub.h"
/*-------------------------------------------------------------------------*/
@@ -1261,6 +1259,51 @@
*dma_handle = 0;
}
+static void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
+{
+ enum dma_data_direction dir;
+
+ if (urb->transfer_flags & URB_SETUP_MAP_SINGLE)
+ dma_unmap_single(hcd->self.controller,
+ urb->setup_dma,
+ sizeof(struct usb_ctrlrequest),
+ DMA_TO_DEVICE);
+ else if (urb->transfer_flags & URB_SETUP_MAP_LOCAL)
+ hcd_free_coherent(urb->dev->bus,
+ &urb->setup_dma,
+ (void **) &urb->setup_packet,
+ sizeof(struct usb_ctrlrequest),
+ DMA_TO_DEVICE);
+
+ dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+ if (urb->transfer_flags & URB_DMA_MAP_SG)
+ dma_unmap_sg(hcd->self.controller,
+ urb->sg,
+ urb->num_sgs,
+ dir);
+ else if (urb->transfer_flags & URB_DMA_MAP_PAGE)
+ dma_unmap_page(hcd->self.controller,
+ urb->transfer_dma,
+ urb->transfer_buffer_length,
+ dir);
+ else if (urb->transfer_flags & URB_DMA_MAP_SINGLE)
+ dma_unmap_single(hcd->self.controller,
+ urb->transfer_dma,
+ urb->transfer_buffer_length,
+ dir);
+ else if (urb->transfer_flags & URB_MAP_LOCAL)
+ hcd_free_coherent(urb->dev->bus,
+ &urb->transfer_dma,
+ &urb->transfer_buffer,
+ urb->transfer_buffer_length,
+ dir);
+
+ /* Make it safe to call this routine more than once */
+ urb->transfer_flags &= ~(URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL |
+ URB_DMA_MAP_SG | URB_DMA_MAP_PAGE |
+ URB_DMA_MAP_SINGLE | URB_MAP_LOCAL);
+}
+
static int map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
gfp_t mem_flags)
{
@@ -1272,11 +1315,8 @@
* unless it uses pio or talks to another transport,
* or uses the provided scatter gather list for bulk.
*/
- if (is_root_hub(urb->dev))
- return 0;
- if (usb_endpoint_xfer_control(&urb->ep->desc)
- && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) {
+ if (usb_endpoint_xfer_control(&urb->ep->desc)) {
if (hcd->self.uses_dma) {
urb->setup_dma = dma_map_single(
hcd->self.controller,
@@ -1286,27 +1326,64 @@
if (dma_mapping_error(hcd->self.controller,
urb->setup_dma))
return -EAGAIN;
- } else if (hcd->driver->flags & HCD_LOCAL_MEM)
+ urb->transfer_flags |= URB_SETUP_MAP_SINGLE;
+ } else if (hcd->driver->flags & HCD_LOCAL_MEM) {
ret = hcd_alloc_coherent(
urb->dev->bus, mem_flags,
&urb->setup_dma,
(void **)&urb->setup_packet,
sizeof(struct usb_ctrlrequest),
DMA_TO_DEVICE);
+ if (ret)
+ return ret;
+ urb->transfer_flags |= URB_SETUP_MAP_LOCAL;
+ }
}
dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
- if (ret == 0 && urb->transfer_buffer_length != 0
+ if (urb->transfer_buffer_length != 0
&& !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) {
if (hcd->self.uses_dma) {
- urb->transfer_dma = dma_map_single (
- hcd->self.controller,
- urb->transfer_buffer,
- urb->transfer_buffer_length,
- dir);
- if (dma_mapping_error(hcd->self.controller,
+ if (urb->num_sgs) {
+ int n = dma_map_sg(
+ hcd->self.controller,
+ urb->sg,
+ urb->num_sgs,
+ dir);
+ if (n <= 0)
+ ret = -EAGAIN;
+ else
+ urb->transfer_flags |= URB_DMA_MAP_SG;
+ if (n != urb->num_sgs) {
+ urb->num_sgs = n;
+ urb->transfer_flags |=
+ URB_DMA_SG_COMBINED;
+ }
+ } else if (urb->sg) {
+ struct scatterlist *sg = urb->sg;
+ urb->transfer_dma = dma_map_page(
+ hcd->self.controller,
+ sg_page(sg),
+ sg->offset,
+ urb->transfer_buffer_length,
+ dir);
+ if (dma_mapping_error(hcd->self.controller,
urb->transfer_dma))
- return -EAGAIN;
+ ret = -EAGAIN;
+ else
+ urb->transfer_flags |= URB_DMA_MAP_PAGE;
+ } else {
+ urb->transfer_dma = dma_map_single(
+ hcd->self.controller,
+ urb->transfer_buffer,
+ urb->transfer_buffer_length,
+ dir);
+ if (dma_mapping_error(hcd->self.controller,
+ urb->transfer_dma))
+ ret = -EAGAIN;
+ else
+ urb->transfer_flags |= URB_DMA_MAP_SINGLE;
+ }
} else if (hcd->driver->flags & HCD_LOCAL_MEM) {
ret = hcd_alloc_coherent(
urb->dev->bus, mem_flags,
@@ -1314,55 +1391,16 @@
&urb->transfer_buffer,
urb->transfer_buffer_length,
dir);
-
- if (ret && usb_endpoint_xfer_control(&urb->ep->desc)
- && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP))
- hcd_free_coherent(urb->dev->bus,
- &urb->setup_dma,
- (void **)&urb->setup_packet,
- sizeof(struct usb_ctrlrequest),
- DMA_TO_DEVICE);
+ if (ret == 0)
+ urb->transfer_flags |= URB_MAP_LOCAL;
}
+ if (ret && (urb->transfer_flags & (URB_SETUP_MAP_SINGLE |
+ URB_SETUP_MAP_LOCAL)))
+ unmap_urb_for_dma(hcd, urb);
}
return ret;
}
-static void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
-{
- enum dma_data_direction dir;
-
- if (is_root_hub(urb->dev))
- return;
-
- if (usb_endpoint_xfer_control(&urb->ep->desc)
- && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) {
- if (hcd->self.uses_dma)
- dma_unmap_single(hcd->self.controller, urb->setup_dma,
- sizeof(struct usb_ctrlrequest),
- DMA_TO_DEVICE);
- else if (hcd->driver->flags & HCD_LOCAL_MEM)
- hcd_free_coherent(urb->dev->bus, &urb->setup_dma,
- (void **)&urb->setup_packet,
- sizeof(struct usb_ctrlrequest),
- DMA_TO_DEVICE);
- }
-
- dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
- if (urb->transfer_buffer_length != 0
- && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) {
- if (hcd->self.uses_dma)
- dma_unmap_single(hcd->self.controller,
- urb->transfer_dma,
- urb->transfer_buffer_length,
- dir);
- else if (hcd->driver->flags & HCD_LOCAL_MEM)
- hcd_free_coherent(urb->dev->bus, &urb->transfer_dma,
- &urb->transfer_buffer,
- urb->transfer_buffer_length,
- dir);
- }
-}
-
/*-------------------------------------------------------------------------*/
/* may be called in any context with a valid urb->dev usecount
@@ -1391,21 +1429,20 @@
* URBs must be submitted in process context with interrupts
* enabled.
*/
- status = map_urb_for_dma(hcd, urb, mem_flags);
- if (unlikely(status)) {
- usbmon_urb_submit_error(&hcd->self, urb, status);
- goto error;
+
+ if (is_root_hub(urb->dev)) {
+ status = rh_urb_enqueue(hcd, urb);
+ } else {
+ status = map_urb_for_dma(hcd, urb, mem_flags);
+ if (likely(status == 0)) {
+ status = hcd->driver->urb_enqueue(hcd, urb, mem_flags);
+ if (unlikely(status))
+ unmap_urb_for_dma(hcd, urb);
+ }
}
- if (is_root_hub(urb->dev))
- status = rh_urb_enqueue(hcd, urb);
- else
- status = hcd->driver->urb_enqueue(hcd, urb, mem_flags);
-
if (unlikely(status)) {
usbmon_urb_submit_error(&hcd->self, urb, status);
- unmap_urb_for_dma(hcd, urb);
- error:
urb->hcpriv = NULL;
INIT_LIST_HEAD(&urb->urb_list);
atomic_dec(&urb->use_count);
@@ -1775,6 +1812,75 @@
}
}
+/**
+ * usb_alloc_streams - allocate bulk endpoint stream IDs.
+ * @interface: alternate setting that includes all endpoints.
+ * @eps: array of endpoints that need streams.
+ * @num_eps: number of endpoints in the array.
+ * @num_streams: number of streams to allocate.
+ * @mem_flags: flags hcd should use to allocate memory.
+ *
+ * Sets up a group of bulk endpoints to have num_streams stream IDs available.
+ * Drivers may queue multiple transfers to different stream IDs, which may
+ * complete in a different order than they were queued.
+ */
+int usb_alloc_streams(struct usb_interface *interface,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ unsigned int num_streams, gfp_t mem_flags)
+{
+ struct usb_hcd *hcd;
+ struct usb_device *dev;
+ int i;
+
+ dev = interface_to_usbdev(interface);
+ hcd = bus_to_hcd(dev->bus);
+ if (!hcd->driver->alloc_streams || !hcd->driver->free_streams)
+ return -EINVAL;
+ if (dev->speed != USB_SPEED_SUPER)
+ return -EINVAL;
+
+ /* Streams only apply to bulk endpoints. */
+ for (i = 0; i < num_eps; i++)
+ if (!usb_endpoint_xfer_bulk(&eps[i]->desc))
+ return -EINVAL;
+
+ return hcd->driver->alloc_streams(hcd, dev, eps, num_eps,
+ num_streams, mem_flags);
+}
+EXPORT_SYMBOL_GPL(usb_alloc_streams);
+
+/**
+ * usb_free_streams - free bulk endpoint stream IDs.
+ * @interface: alternate setting that includes all endpoints.
+ * @eps: array of endpoints to remove streams from.
+ * @num_eps: number of endpoints in the array.
+ * @mem_flags: flags hcd should use to allocate memory.
+ *
+ * Reverts a group of bulk endpoints back to not using stream IDs.
+ * Can fail if we are given bad arguments, or HCD is broken.
+ */
+void usb_free_streams(struct usb_interface *interface,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ gfp_t mem_flags)
+{
+ struct usb_hcd *hcd;
+ struct usb_device *dev;
+ int i;
+
+ dev = interface_to_usbdev(interface);
+ hcd = bus_to_hcd(dev->bus);
+ if (dev->speed != USB_SPEED_SUPER)
+ return;
+
+ /* Streams only apply to bulk endpoints. */
+ for (i = 0; i < num_eps; i++)
+ if (!usb_endpoint_xfer_bulk(&eps[i]->desc))
+ return;
+
+ hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
+}
+EXPORT_SYMBOL_GPL(usb_free_streams);
+
/* Protect against drivers that try to unlink URBs after the device
* is gone, by waiting until all unlinks for @udev are finished.
* Since we don't currently track URBs by device, simply wait until
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
deleted file mode 100644
index a3cdb09..0000000
--- a/drivers/usb/core/hcd.h
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * Copyright (c) 2001-2002 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __USB_CORE_HCD_H
-#define __USB_CORE_HCD_H
-
-#ifdef __KERNEL__
-
-#include <linux/rwsem.h>
-
-#define MAX_TOPO_LEVEL 6
-
-/* This file contains declarations of usbcore internals that are mostly
- * used or exposed by Host Controller Drivers.
- */
-
-/*
- * USB Packet IDs (PIDs)
- */
-#define USB_PID_EXT 0xf0 /* USB 2.0 LPM ECN */
-#define USB_PID_OUT 0xe1
-#define USB_PID_ACK 0xd2
-#define USB_PID_DATA0 0xc3
-#define USB_PID_PING 0xb4 /* USB 2.0 */
-#define USB_PID_SOF 0xa5
-#define USB_PID_NYET 0x96 /* USB 2.0 */
-#define USB_PID_DATA2 0x87 /* USB 2.0 */
-#define USB_PID_SPLIT 0x78 /* USB 2.0 */
-#define USB_PID_IN 0x69
-#define USB_PID_NAK 0x5a
-#define USB_PID_DATA1 0x4b
-#define USB_PID_PREAMBLE 0x3c /* Token mode */
-#define USB_PID_ERR 0x3c /* USB 2.0: handshake mode */
-#define USB_PID_SETUP 0x2d
-#define USB_PID_STALL 0x1e
-#define USB_PID_MDATA 0x0f /* USB 2.0 */
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * USB Host Controller Driver (usb_hcd) framework
- *
- * Since "struct usb_bus" is so thin, you can't share much code in it.
- * This framework is a layer over that, and should be more sharable.
- *
- * @authorized_default: Specifies if new devices are authorized to
- * connect by default or they require explicit
- * user space authorization; this bit is settable
- * through /sys/class/usb_host/X/authorized_default.
- * For the rest is RO, so we don't lock to r/w it.
- */
-
-/*-------------------------------------------------------------------------*/
-
-struct usb_hcd {
-
- /*
- * housekeeping
- */
- struct usb_bus self; /* hcd is-a bus */
- struct kref kref; /* reference counter */
-
- const char *product_desc; /* product/vendor string */
- char irq_descr[24]; /* driver + bus # */
-
- struct timer_list rh_timer; /* drives root-hub polling */
- struct urb *status_urb; /* the current status urb */
-#ifdef CONFIG_USB_SUSPEND
- struct work_struct wakeup_work; /* for remote wakeup */
-#endif
-
- /*
- * hardware info/state
- */
- const struct hc_driver *driver; /* hw-specific hooks */
-
- /* Flags that need to be manipulated atomically */
- unsigned long flags;
-#define HCD_FLAG_HW_ACCESSIBLE 0x00000001
-#define HCD_FLAG_SAW_IRQ 0x00000002
-
- unsigned rh_registered:1;/* is root hub registered? */
-
- /* The next flag is a stopgap, to be removed when all the HCDs
- * support the new root-hub polling mechanism. */
- unsigned uses_new_polling:1;
- unsigned poll_rh:1; /* poll for rh status? */
- unsigned poll_pending:1; /* status has changed? */
- unsigned wireless:1; /* Wireless USB HCD */
- unsigned authorized_default:1;
- unsigned has_tt:1; /* Integrated TT in root hub */
-
- int irq; /* irq allocated */
- void __iomem *regs; /* device memory/io */
- u64 rsrc_start; /* memory/io resource start */
- u64 rsrc_len; /* memory/io resource length */
- unsigned power_budget; /* in mA, 0 = no limit */
-
- /* bandwidth_mutex should be taken before adding or removing
- * any new bus bandwidth constraints:
- * 1. Before adding a configuration for a new device.
- * 2. Before removing the configuration to put the device into
- * the addressed state.
- * 3. Before selecting a different configuration.
- * 4. Before selecting an alternate interface setting.
- *
- * bandwidth_mutex should be dropped after a successful control message
- * to the device, or resetting the bandwidth after a failed attempt.
- */
- struct mutex bandwidth_mutex;
-
-
-#define HCD_BUFFER_POOLS 4
- struct dma_pool *pool [HCD_BUFFER_POOLS];
-
- int state;
-# define __ACTIVE 0x01
-# define __SUSPEND 0x04
-# define __TRANSIENT 0x80
-
-# define HC_STATE_HALT 0
-# define HC_STATE_RUNNING (__ACTIVE)
-# define HC_STATE_QUIESCING (__SUSPEND|__TRANSIENT|__ACTIVE)
-# define HC_STATE_RESUMING (__SUSPEND|__TRANSIENT)
-# define HC_STATE_SUSPENDED (__SUSPEND)
-
-#define HC_IS_RUNNING(state) ((state) & __ACTIVE)
-#define HC_IS_SUSPENDED(state) ((state) & __SUSPEND)
-
- /* more shared queuing code would be good; it should support
- * smarter scheduling, handle transaction translators, etc;
- * input size of periodic table to an interrupt scheduler.
- * (ohci 32, uhci 1024, ehci 256/512/1024).
- */
-
- /* The HC driver's private data is stored at the end of
- * this structure.
- */
- unsigned long hcd_priv[0]
- __attribute__ ((aligned(sizeof(unsigned long))));
-};
-
-/* 2.4 does this a bit differently ... */
-static inline struct usb_bus *hcd_to_bus(struct usb_hcd *hcd)
-{
- return &hcd->self;
-}
-
-static inline struct usb_hcd *bus_to_hcd(struct usb_bus *bus)
-{
- return container_of(bus, struct usb_hcd, self);
-}
-
-struct hcd_timeout { /* timeouts we allocate */
- struct list_head timeout_list;
- struct timer_list timer;
-};
-
-/*-------------------------------------------------------------------------*/
-
-
-struct hc_driver {
- const char *description; /* "ehci-hcd" etc */
- const char *product_desc; /* product/vendor string */
- size_t hcd_priv_size; /* size of private data */
-
- /* irq handler */
- irqreturn_t (*irq) (struct usb_hcd *hcd);
-
- int flags;
-#define HCD_MEMORY 0x0001 /* HC regs use memory (else I/O) */
-#define HCD_LOCAL_MEM 0x0002 /* HC needs local memory */
-#define HCD_USB11 0x0010 /* USB 1.1 */
-#define HCD_USB2 0x0020 /* USB 2.0 */
-#define HCD_USB3 0x0040 /* USB 3.0 */
-#define HCD_MASK 0x0070
-
- /* called to init HCD and root hub */
- int (*reset) (struct usb_hcd *hcd);
- int (*start) (struct usb_hcd *hcd);
-
- /* NOTE: these suspend/resume calls relate to the HC as
- * a whole, not just the root hub; they're for PCI bus glue.
- */
- /* called after suspending the hub, before entering D3 etc */
- int (*pci_suspend)(struct usb_hcd *hcd);
-
- /* called after entering D0 (etc), before resuming the hub */
- int (*pci_resume)(struct usb_hcd *hcd, bool hibernated);
-
- /* cleanly make HCD stop writing memory and doing I/O */
- void (*stop) (struct usb_hcd *hcd);
-
- /* shutdown HCD */
- void (*shutdown) (struct usb_hcd *hcd);
-
- /* return current frame number */
- int (*get_frame_number) (struct usb_hcd *hcd);
-
- /* manage i/o requests, device state */
- int (*urb_enqueue)(struct usb_hcd *hcd,
- struct urb *urb, gfp_t mem_flags);
- int (*urb_dequeue)(struct usb_hcd *hcd,
- struct urb *urb, int status);
-
- /* hw synch, freeing endpoint resources that urb_dequeue can't */
- void (*endpoint_disable)(struct usb_hcd *hcd,
- struct usb_host_endpoint *ep);
-
- /* (optional) reset any endpoint state such as sequence number
- and current window */
- void (*endpoint_reset)(struct usb_hcd *hcd,
- struct usb_host_endpoint *ep);
-
- /* root hub support */
- int (*hub_status_data) (struct usb_hcd *hcd, char *buf);
- int (*hub_control) (struct usb_hcd *hcd,
- u16 typeReq, u16 wValue, u16 wIndex,
- char *buf, u16 wLength);
- int (*bus_suspend)(struct usb_hcd *);
- int (*bus_resume)(struct usb_hcd *);
- int (*start_port_reset)(struct usb_hcd *, unsigned port_num);
-
- /* force handover of high-speed port to full-speed companion */
- void (*relinquish_port)(struct usb_hcd *, int);
- /* has a port been handed over to a companion? */
- int (*port_handed_over)(struct usb_hcd *, int);
-
- /* CLEAR_TT_BUFFER completion callback */
- void (*clear_tt_buffer_complete)(struct usb_hcd *,
- struct usb_host_endpoint *);
-
- /* xHCI specific functions */
- /* Called by usb_alloc_dev to alloc HC device structures */
- int (*alloc_dev)(struct usb_hcd *, struct usb_device *);
- /* Called by usb_disconnect to free HC device structures */
- void (*free_dev)(struct usb_hcd *, struct usb_device *);
-
- /* Bandwidth computation functions */
- /* Note that add_endpoint() can only be called once per endpoint before
- * check_bandwidth() or reset_bandwidth() must be called.
- * drop_endpoint() can only be called once per endpoint also.
- * A call to xhci_drop_endpoint() followed by a call to xhci_add_endpoint() will
- * add the endpoint to the schedule with possibly new parameters denoted by a
- * different endpoint descriptor in usb_host_endpoint.
- * A call to xhci_add_endpoint() followed by a call to xhci_drop_endpoint() is
- * not allowed.
- */
- /* Allocate endpoint resources and add them to a new schedule */
- int (*add_endpoint)(struct usb_hcd *, struct usb_device *, struct usb_host_endpoint *);
- /* Drop an endpoint from a new schedule */
- int (*drop_endpoint)(struct usb_hcd *, struct usb_device *, struct usb_host_endpoint *);
- /* Check that a new hardware configuration, set using
- * endpoint_enable and endpoint_disable, does not exceed bus
- * bandwidth. This must be called before any set configuration
- * or set interface requests are sent to the device.
- */
- int (*check_bandwidth)(struct usb_hcd *, struct usb_device *);
- /* Reset the device schedule to the last known good schedule,
- * which was set from a previous successful call to
- * check_bandwidth(). This reverts any add_endpoint() and
- * drop_endpoint() calls since that last successful call.
- * Used for when a check_bandwidth() call fails due to resource
- * or bandwidth constraints.
- */
- void (*reset_bandwidth)(struct usb_hcd *, struct usb_device *);
- /* Returns the hardware-chosen device address */
- int (*address_device)(struct usb_hcd *, struct usb_device *udev);
- /* Notifies the HCD after a hub descriptor is fetched.
- * Will block.
- */
- int (*update_hub_device)(struct usb_hcd *, struct usb_device *hdev,
- struct usb_tt *tt, gfp_t mem_flags);
- int (*reset_device)(struct usb_hcd *, struct usb_device *);
-};
-
-extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);
-extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb,
- int status);
-extern void usb_hcd_unlink_urb_from_ep(struct usb_hcd *hcd, struct urb *urb);
-
-extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags);
-extern int usb_hcd_unlink_urb(struct urb *urb, int status);
-extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb,
- int status);
-extern void usb_hcd_flush_endpoint(struct usb_device *udev,
- struct usb_host_endpoint *ep);
-extern void usb_hcd_disable_endpoint(struct usb_device *udev,
- struct usb_host_endpoint *ep);
-extern void usb_hcd_reset_endpoint(struct usb_device *udev,
- struct usb_host_endpoint *ep);
-extern void usb_hcd_synchronize_unlinks(struct usb_device *udev);
-extern int usb_hcd_alloc_bandwidth(struct usb_device *udev,
- struct usb_host_config *new_config,
- struct usb_host_interface *old_alt,
- struct usb_host_interface *new_alt);
-extern int usb_hcd_get_frame_number(struct usb_device *udev);
-
-extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver,
- struct device *dev, const char *bus_name);
-extern struct usb_hcd *usb_get_hcd(struct usb_hcd *hcd);
-extern void usb_put_hcd(struct usb_hcd *hcd);
-extern int usb_add_hcd(struct usb_hcd *hcd,
- unsigned int irqnum, unsigned long irqflags);
-extern void usb_remove_hcd(struct usb_hcd *hcd);
-
-struct platform_device;
-extern void usb_hcd_platform_shutdown(struct platform_device *dev);
-
-#ifdef CONFIG_PCI
-struct pci_dev;
-struct pci_device_id;
-extern int usb_hcd_pci_probe(struct pci_dev *dev,
- const struct pci_device_id *id);
-extern void usb_hcd_pci_remove(struct pci_dev *dev);
-extern void usb_hcd_pci_shutdown(struct pci_dev *dev);
-
-#ifdef CONFIG_PM_SLEEP
-extern const struct dev_pm_ops usb_hcd_pci_pm_ops;
-#endif
-#endif /* CONFIG_PCI */
-
-/* pci-ish (pdev null is ok) buffer alloc/mapping support */
-int hcd_buffer_create(struct usb_hcd *hcd);
-void hcd_buffer_destroy(struct usb_hcd *hcd);
-
-void *hcd_buffer_alloc(struct usb_bus *bus, size_t size,
- gfp_t mem_flags, dma_addr_t *dma);
-void hcd_buffer_free(struct usb_bus *bus, size_t size,
- void *addr, dma_addr_t dma);
-
-/* generic bus glue, needed for host controllers that don't use PCI */
-extern irqreturn_t usb_hcd_irq(int irq, void *__hcd);
-
-extern void usb_hc_died(struct usb_hcd *hcd);
-extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd);
-
-/* The D0/D1 toggle bits ... USE WITH CAUTION (they're almost hcd-internal) */
-#define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> (ep)) & 1)
-#define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << (ep)))
-#define usb_settoggle(dev, ep, out, bit) \
- ((dev)->toggle[out] = ((dev)->toggle[out] & ~(1 << (ep))) | \
- ((bit) << (ep)))
-
-/* -------------------------------------------------------------------------- */
-
-/* Enumeration is only for the hub driver, or HCD virtual root hubs */
-extern struct usb_device *usb_alloc_dev(struct usb_device *parent,
- struct usb_bus *, unsigned port);
-extern int usb_new_device(struct usb_device *dev);
-extern void usb_disconnect(struct usb_device **);
-
-extern int usb_get_configuration(struct usb_device *dev);
-extern void usb_destroy_configuration(struct usb_device *dev);
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * HCD Root Hub support
- */
-
-#include "hub.h"
-
-/* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */
-#define DeviceRequest \
- ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
-#define DeviceOutRequest \
- ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
-
-#define InterfaceRequest \
- ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
-
-#define EndpointRequest \
- ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
-#define EndpointOutRequest \
- ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
-
-/* class requests from the USB 2.0 hub spec, table 11-15 */
-/* GetBusState and SetHubDescriptor are optional, omitted */
-#define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE)
-#define ClearPortFeature (0x2300 | USB_REQ_CLEAR_FEATURE)
-#define GetHubDescriptor (0xa000 | USB_REQ_GET_DESCRIPTOR)
-#define GetHubStatus (0xa000 | USB_REQ_GET_STATUS)
-#define GetPortStatus (0xa300 | USB_REQ_GET_STATUS)
-#define SetHubFeature (0x2000 | USB_REQ_SET_FEATURE)
-#define SetPortFeature (0x2300 | USB_REQ_SET_FEATURE)
-
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * Generic bandwidth allocation constants/support
- */
-#define FRAME_TIME_USECS 1000L
-#define BitTime(bytecount) (7 * 8 * bytecount / 6) /* with integer truncation */
- /* Trying not to use worst-case bit-stuffing
- * of (7/6 * 8 * bytecount) = 9.33 * bytecount */
- /* bytecount = data payload byte count */
-
-#define NS_TO_US(ns) ((ns + 500L) / 1000L)
- /* convert & round nanoseconds to microseconds */
-
-
-/*
- * Full/low speed bandwidth allocation constants/support.
- */
-#define BW_HOST_DELAY 1000L /* nanoseconds */
-#define BW_HUB_LS_SETUP 333L /* nanoseconds */
- /* 4 full-speed bit times (est.) */
-
-#define FRAME_TIME_BITS 12000L /* frame = 1 millisecond */
-#define FRAME_TIME_MAX_BITS_ALLOC (90L * FRAME_TIME_BITS / 100L)
-#define FRAME_TIME_MAX_USECS_ALLOC (90L * FRAME_TIME_USECS / 100L)
-
-/*
- * Ceiling [nano/micro]seconds (typical) for that many bytes at high speed
- * ISO is a bit less, no ACK ... from USB 2.0 spec, 5.11.3 (and needed
- * to preallocate bandwidth)
- */
-#define USB2_HOST_DELAY 5 /* nsec, guess */
-#define HS_NSECS(bytes) (((55 * 8 * 2083) \
- + (2083UL * (3 + BitTime(bytes))))/1000 \
- + USB2_HOST_DELAY)
-#define HS_NSECS_ISO(bytes) (((38 * 8 * 2083) \
- + (2083UL * (3 + BitTime(bytes))))/1000 \
- + USB2_HOST_DELAY)
-#define HS_USECS(bytes) NS_TO_US (HS_NSECS(bytes))
-#define HS_USECS_ISO(bytes) NS_TO_US (HS_NSECS_ISO(bytes))
-
-extern long usb_calc_bus_time(int speed, int is_input,
- int isoc, int bytecount);
-
-/*-------------------------------------------------------------------------*/
-
-extern void usb_set_device_state(struct usb_device *udev,
- enum usb_device_state new_state);
-
-/*-------------------------------------------------------------------------*/
-
-/* exported only within usbcore */
-
-extern struct list_head usb_bus_list;
-extern struct mutex usb_bus_list_lock;
-extern wait_queue_head_t usb_kill_urb_queue;
-
-extern int usb_find_interface_driver(struct usb_device *dev,
- struct usb_interface *interface);
-
-#define usb_endpoint_out(ep_dir) (!((ep_dir) & USB_DIR_IN))
-
-#ifdef CONFIG_PM
-extern void usb_root_hub_lost_power(struct usb_device *rhdev);
-extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg);
-extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg);
-#endif /* CONFIG_PM */
-
-#ifdef CONFIG_USB_SUSPEND
-extern void usb_hcd_resume_root_hub(struct usb_hcd *hcd);
-#else
-static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd)
-{
- return;
-}
-#endif /* CONFIG_USB_SUSPEND */
-
-
-/*
- * USB device fs stuff
- */
-
-#ifdef CONFIG_USB_DEVICEFS
-
-/*
- * these are expected to be called from the USB core/hub thread
- * with the kernel lock held
- */
-extern void usbfs_update_special(void);
-extern int usbfs_init(void);
-extern void usbfs_cleanup(void);
-
-#else /* CONFIG_USB_DEVICEFS */
-
-static inline void usbfs_update_special(void) {}
-static inline int usbfs_init(void) { return 0; }
-static inline void usbfs_cleanup(void) { }
-
-#endif /* CONFIG_USB_DEVICEFS */
-
-/*-------------------------------------------------------------------------*/
-
-#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
-
-struct usb_mon_operations {
- void (*urb_submit)(struct usb_bus *bus, struct urb *urb);
- void (*urb_submit_error)(struct usb_bus *bus, struct urb *urb, int err);
- void (*urb_complete)(struct usb_bus *bus, struct urb *urb, int status);
- /* void (*urb_unlink)(struct usb_bus *bus, struct urb *urb); */
-};
-
-extern struct usb_mon_operations *mon_ops;
-
-static inline void usbmon_urb_submit(struct usb_bus *bus, struct urb *urb)
-{
- if (bus->monitored)
- (*mon_ops->urb_submit)(bus, urb);
-}
-
-static inline void usbmon_urb_submit_error(struct usb_bus *bus, struct urb *urb,
- int error)
-{
- if (bus->monitored)
- (*mon_ops->urb_submit_error)(bus, urb, error);
-}
-
-static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb,
- int status)
-{
- if (bus->monitored)
- (*mon_ops->urb_complete)(bus, urb, status);
-}
-
-int usb_mon_register(struct usb_mon_operations *ops);
-void usb_mon_deregister(void);
-
-#else
-
-static inline void usbmon_urb_submit(struct usb_bus *bus, struct urb *urb) {}
-static inline void usbmon_urb_submit_error(struct usb_bus *bus, struct urb *urb,
- int error) {}
-static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb,
- int status) {}
-
-#endif /* CONFIG_USB_MON || CONFIG_USB_MON_MODULE */
-
-/*-------------------------------------------------------------------------*/
-
-/* hub.h ... DeviceRemovable in 2.4.2-ac11, gone in 2.4.10 */
-/* bleech -- resurfaced in 2.4.11 or 2.4.12 */
-#define bitmap DeviceRemovable
-
-
-/*-------------------------------------------------------------------------*/
-
-/* random stuff */
-
-#define RUN_CONTEXT (in_irq() ? "in_irq" \
- : (in_interrupt() ? "in_interrupt" : "can sleep"))
-
-
-/* This rwsem is for use only by the hub driver and ehci-hcd.
- * Nobody else should touch it.
- */
-extern struct rw_semaphore ehci_cf_port_reset_rwsem;
-
-/* Keep track of which host controller drivers are loaded */
-#define USB_UHCI_LOADED 0
-#define USB_OHCI_LOADED 1
-#define USB_EHCI_LOADED 2
-extern unsigned long usb_hcds_loaded;
-
-#endif /* __KERNEL__ */
-
-#endif /* __USB_CORE_HCD_H */
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 0940ccd..83e7bbb 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -19,6 +19,7 @@
#include <linux/ioctl.h>
#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
+#include <linux/usb/hcd.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
@@ -28,8 +29,6 @@
#include <asm/byteorder.h>
#include "usb.h"
-#include "hcd.h"
-#include "hub.h"
/* if we are in debug mode, always announce new devices */
#ifdef DEBUG
@@ -154,11 +153,11 @@
static inline char *portspeed(int portstatus)
{
- if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED))
+ if (portstatus & USB_PORT_STAT_HIGH_SPEED)
return "480 Mb/s";
- else if (portstatus & (1 << USB_PORT_FEAT_LOWSPEED))
+ else if (portstatus & USB_PORT_STAT_LOW_SPEED)
return "1.5 Mb/s";
- else if (portstatus & (1 << USB_PORT_FEAT_SUPERSPEED))
+ else if (portstatus & USB_PORT_STAT_SUPER_SPEED)
return "5.0 Gb/s";
else
return "12 Mb/s";
@@ -745,8 +744,20 @@
!(portstatus & USB_PORT_STAT_CONNECTION) ||
!udev ||
udev->state == USB_STATE_NOTATTACHED)) {
- clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE);
- portstatus &= ~USB_PORT_STAT_ENABLE;
+ /*
+ * USB3 protocol ports will automatically transition
+ * to Enabled state when detect an USB3.0 device attach.
+ * Do not disable USB3 protocol ports.
+ * FIXME: USB3 root hub and external hubs are treated
+ * differently here.
+ */
+ if (hdev->descriptor.bDeviceProtocol != 3 ||
+ (!hdev->parent &&
+ !(portstatus & USB_PORT_STAT_SUPER_SPEED))) {
+ clear_port_feature(hdev, port1,
+ USB_PORT_FEAT_ENABLE);
+ portstatus &= ~USB_PORT_STAT_ENABLE;
+ }
}
/* Clear status-change flags; we'll debounce later */
@@ -1784,7 +1795,6 @@
* sysfs power/wakeup controls wakeup enabled/disabled
*/
device_init_wakeup(&udev->dev, 0);
- device_set_wakeup_enable(&udev->dev, 1);
}
/* Tell the runtime-PM framework the device is active */
@@ -3038,7 +3048,7 @@
/* maybe switch power back on (e.g. root hub was reset) */
if ((wHubCharacteristics & HUB_CHAR_LPSM) < 2
- && !(portstatus & (1 << USB_PORT_FEAT_POWER)))
+ && !(portstatus & USB_PORT_STAT_POWER))
set_port_feature(hdev, port1, USB_PORT_FEAT_POWER);
if (portstatus & USB_PORT_STAT_ENABLE)
@@ -3076,7 +3086,7 @@
if (!(hcd->driver->flags & HCD_USB3))
udev->speed = USB_SPEED_UNKNOWN;
else if ((hdev->parent == NULL) &&
- (portstatus & (1 << USB_PORT_FEAT_SUPERSPEED)))
+ (portstatus & USB_PORT_STAT_SUPER_SPEED))
udev->speed = USB_SPEED_SUPER;
else
udev->speed = USB_SPEED_UNKNOWN;
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
deleted file mode 100644
index de8081f..0000000
--- a/drivers/usb/core/hub.h
+++ /dev/null
@@ -1,205 +0,0 @@
-#ifndef __LINUX_HUB_H
-#define __LINUX_HUB_H
-
-/*
- * Hub protocol and driver data structures.
- *
- * Some of these are known to the "virtual root hub" code
- * in host controller drivers.
- */
-
-#include <linux/list.h>
-#include <linux/workqueue.h>
-#include <linux/compiler.h> /* likely()/unlikely() */
-
-/*
- * Hub request types
- */
-
-#define USB_RT_HUB (USB_TYPE_CLASS | USB_RECIP_DEVICE)
-#define USB_RT_PORT (USB_TYPE_CLASS | USB_RECIP_OTHER)
-
-/*
- * Hub class requests
- * See USB 2.0 spec Table 11-16
- */
-#define HUB_CLEAR_TT_BUFFER 8
-#define HUB_RESET_TT 9
-#define HUB_GET_TT_STATE 10
-#define HUB_STOP_TT 11
-
-/*
- * Hub Class feature numbers
- * See USB 2.0 spec Table 11-17
- */
-#define C_HUB_LOCAL_POWER 0
-#define C_HUB_OVER_CURRENT 1
-
-/*
- * Port feature numbers
- * See USB 2.0 spec Table 11-17
- */
-#define USB_PORT_FEAT_CONNECTION 0
-#define USB_PORT_FEAT_ENABLE 1
-#define USB_PORT_FEAT_SUSPEND 2 /* L2 suspend */
-#define USB_PORT_FEAT_OVER_CURRENT 3
-#define USB_PORT_FEAT_RESET 4
-#define USB_PORT_FEAT_L1 5 /* L1 suspend */
-#define USB_PORT_FEAT_POWER 8
-#define USB_PORT_FEAT_LOWSPEED 9
-/* This value was never in Table 11-17 */
-#define USB_PORT_FEAT_HIGHSPEED 10
-/* This value is also fake */
-#define USB_PORT_FEAT_SUPERSPEED 11
-#define USB_PORT_FEAT_C_CONNECTION 16
-#define USB_PORT_FEAT_C_ENABLE 17
-#define USB_PORT_FEAT_C_SUSPEND 18
-#define USB_PORT_FEAT_C_OVER_CURRENT 19
-#define USB_PORT_FEAT_C_RESET 20
-#define USB_PORT_FEAT_TEST 21
-#define USB_PORT_FEAT_INDICATOR 22
-#define USB_PORT_FEAT_C_PORT_L1 23
-
-/*
- * Hub Status and Hub Change results
- * See USB 2.0 spec Table 11-19 and Table 11-20
- */
-struct usb_port_status {
- __le16 wPortStatus;
- __le16 wPortChange;
-} __attribute__ ((packed));
-
-/*
- * wPortStatus bit field
- * See USB 2.0 spec Table 11-21
- */
-#define USB_PORT_STAT_CONNECTION 0x0001
-#define USB_PORT_STAT_ENABLE 0x0002
-#define USB_PORT_STAT_SUSPEND 0x0004
-#define USB_PORT_STAT_OVERCURRENT 0x0008
-#define USB_PORT_STAT_RESET 0x0010
-#define USB_PORT_STAT_L1 0x0020
-/* bits 6 to 7 are reserved */
-#define USB_PORT_STAT_POWER 0x0100
-#define USB_PORT_STAT_LOW_SPEED 0x0200
-#define USB_PORT_STAT_HIGH_SPEED 0x0400
-#define USB_PORT_STAT_TEST 0x0800
-#define USB_PORT_STAT_INDICATOR 0x1000
-/* bits 13 to 15 are reserved */
-
-/*
- * wPortChange bit field
- * See USB 2.0 spec Table 11-22
- * Bits 0 to 4 shown, bits 5 to 15 are reserved
- */
-#define USB_PORT_STAT_C_CONNECTION 0x0001
-#define USB_PORT_STAT_C_ENABLE 0x0002
-#define USB_PORT_STAT_C_SUSPEND 0x0004
-#define USB_PORT_STAT_C_OVERCURRENT 0x0008
-#define USB_PORT_STAT_C_RESET 0x0010
-#define USB_PORT_STAT_C_L1 0x0020
-
-/*
- * wHubCharacteristics (masks)
- * See USB 2.0 spec Table 11-13, offset 3
- */
-#define HUB_CHAR_LPSM 0x0003 /* D1 .. D0 */
-#define HUB_CHAR_COMPOUND 0x0004 /* D2 */
-#define HUB_CHAR_OCPM 0x0018 /* D4 .. D3 */
-#define HUB_CHAR_TTTT 0x0060 /* D6 .. D5 */
-#define HUB_CHAR_PORTIND 0x0080 /* D7 */
-
-struct usb_hub_status {
- __le16 wHubStatus;
- __le16 wHubChange;
-} __attribute__ ((packed));
-
-/*
- * Hub Status & Hub Change bit masks
- * See USB 2.0 spec Table 11-19 and Table 11-20
- * Bits 0 and 1 for wHubStatus and wHubChange
- * Bits 2 to 15 are reserved for both
- */
-#define HUB_STATUS_LOCAL_POWER 0x0001
-#define HUB_STATUS_OVERCURRENT 0x0002
-#define HUB_CHANGE_LOCAL_POWER 0x0001
-#define HUB_CHANGE_OVERCURRENT 0x0002
-
-
-/*
- * Hub descriptor
- * See USB 2.0 spec Table 11-13
- */
-
-#define USB_DT_HUB (USB_TYPE_CLASS | 0x09)
-#define USB_DT_HUB_NONVAR_SIZE 7
-
-struct usb_hub_descriptor {
- __u8 bDescLength;
- __u8 bDescriptorType;
- __u8 bNbrPorts;
- __le16 wHubCharacteristics;
- __u8 bPwrOn2PwrGood;
- __u8 bHubContrCurrent;
- /* add 1 bit for hub status change; round to bytes */
- __u8 DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
- __u8 PortPwrCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
-} __attribute__ ((packed));
-
-
-/* port indicator status selectors, tables 11-7 and 11-25 */
-#define HUB_LED_AUTO 0
-#define HUB_LED_AMBER 1
-#define HUB_LED_GREEN 2
-#define HUB_LED_OFF 3
-
-enum hub_led_mode {
- INDICATOR_AUTO = 0,
- INDICATOR_CYCLE,
- /* software blinks for attention: software, hardware, reserved */
- INDICATOR_GREEN_BLINK, INDICATOR_GREEN_BLINK_OFF,
- INDICATOR_AMBER_BLINK, INDICATOR_AMBER_BLINK_OFF,
- INDICATOR_ALT_BLINK, INDICATOR_ALT_BLINK_OFF
-} __attribute__ ((packed));
-
-struct usb_device;
-
-/* Transaction Translator Think Times, in bits */
-#define HUB_TTTT_8_BITS 0x00
-#define HUB_TTTT_16_BITS 0x20
-#define HUB_TTTT_24_BITS 0x40
-#define HUB_TTTT_32_BITS 0x60
-
-/*
- * As of USB 2.0, full/low speed devices are segregated into trees.
- * One type grows from USB 1.1 host controllers (OHCI, UHCI etc).
- * The other type grows from high speed hubs when they connect to
- * full/low speed devices using "Transaction Translators" (TTs).
- *
- * TTs should only be known to the hub driver, and high speed bus
- * drivers (only EHCI for now). They affect periodic scheduling and
- * sometimes control/bulk error recovery.
- */
-struct usb_tt {
- struct usb_device *hub; /* upstream highspeed hub */
- int multi; /* true means one TT per port */
- unsigned think_time; /* think time in ns */
-
- /* for control/bulk error recovery (CLEAR_TT_BUFFER) */
- spinlock_t lock;
- struct list_head clear_list; /* of usb_tt_clear */
- struct work_struct clear_work;
-};
-
-struct usb_tt_clear {
- struct list_head clear_list;
- unsigned tt;
- u16 devinfo;
- struct usb_hcd *hcd;
- struct usb_host_endpoint *ep;
-};
-
-extern int usb_hub_clear_tt_buffer(struct urb *urb);
-extern void usb_ep0_reinit(struct usb_device *);
-
-#endif /* __LINUX_HUB_H */
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 111a01a..1a27618 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -40,9 +40,9 @@
#include <linux/notifier.h>
#include <linux/seq_file.h>
#include <linux/smp_lock.h>
+#include <linux/usb/hcd.h>
#include <asm/byteorder.h>
#include "usb.h"
-#include "hcd.h"
#define USBFS_DEFAULT_DEVMODE (S_IWUSR | S_IRUGO)
#define USBFS_DEFAULT_BUSMODE (S_IXUGO | S_IRUGO)
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index cd22027..a73e08f 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -14,9 +14,9 @@
#include <linux/device.h>
#include <linux/scatterlist.h>
#include <linux/usb/quirks.h>
+#include <linux/usb/hcd.h> /* for usbcore internals */
#include <asm/byteorder.h>
-#include "hcd.h" /* for usbcore internals */
#include "usb.h"
static void cancel_async_set_config(struct usb_device *udev);
@@ -226,8 +226,7 @@
struct urb *urb;
struct usb_host_endpoint *ep;
- ep = (usb_pipein(pipe) ? usb_dev->ep_in : usb_dev->ep_out)
- [usb_pipeendpoint(pipe)];
+ ep = usb_pipe_endpoint(usb_dev, pipe);
if (!ep || len < 0)
return -EINVAL;
@@ -259,9 +258,6 @@
kfree(io->urbs);
io->urbs = NULL;
}
- if (io->dev->dev.dma_mask != NULL)
- usb_buffer_unmap_sg(io->dev, usb_pipein(io->pipe),
- io->sg, io->nents);
io->dev = NULL;
}
@@ -364,7 +360,6 @@
{
int i;
int urb_flags;
- int dma;
int use_sg;
if (!io || !dev || !sg
@@ -376,114 +371,76 @@
spin_lock_init(&io->lock);
io->dev = dev;
io->pipe = pipe;
- io->sg = sg;
- io->nents = nents;
-
- /* not all host controllers use DMA (like the mainstream pci ones);
- * they can use PIO (sl811) or be software over another transport.
- */
- dma = (dev->dev.dma_mask != NULL);
- if (dma)
- io->entries = usb_buffer_map_sg(dev, usb_pipein(pipe),
- sg, nents);
- else
- io->entries = nents;
-
- /* initialize all the urbs we'll use */
- if (io->entries <= 0)
- return io->entries;
if (dev->bus->sg_tablesize > 0) {
- io->urbs = kmalloc(sizeof *io->urbs, mem_flags);
use_sg = true;
+ io->entries = 1;
} else {
- io->urbs = kmalloc(io->entries * sizeof *io->urbs, mem_flags);
use_sg = false;
+ io->entries = nents;
}
+
+ /* initialize all the urbs we'll use */
+ io->urbs = kmalloc(io->entries * sizeof *io->urbs, mem_flags);
if (!io->urbs)
goto nomem;
- urb_flags = 0;
- if (dma)
- urb_flags |= URB_NO_TRANSFER_DMA_MAP;
+ urb_flags = URB_NO_INTERRUPT;
if (usb_pipein(pipe))
urb_flags |= URB_SHORT_NOT_OK;
- if (use_sg) {
- io->urbs[0] = usb_alloc_urb(0, mem_flags);
- if (!io->urbs[0]) {
- io->entries = 0;
+ for_each_sg(sg, sg, io->entries, i) {
+ struct urb *urb;
+ unsigned len;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb) {
+ io->entries = i;
goto nomem;
}
+ io->urbs[i] = urb;
- io->urbs[0]->dev = NULL;
- io->urbs[0]->pipe = pipe;
- io->urbs[0]->interval = period;
- io->urbs[0]->transfer_flags = urb_flags;
+ urb->dev = NULL;
+ urb->pipe = pipe;
+ urb->interval = period;
+ urb->transfer_flags = urb_flags;
+ urb->complete = sg_complete;
+ urb->context = io;
+ urb->sg = sg;
- io->urbs[0]->complete = sg_complete;
- io->urbs[0]->context = io;
- /* A length of zero means transfer the whole sg list */
- io->urbs[0]->transfer_buffer_length = length;
- if (length == 0) {
- for_each_sg(sg, sg, io->entries, i) {
- io->urbs[0]->transfer_buffer_length +=
- sg_dma_len(sg);
+ if (use_sg) {
+ /* There is no single transfer buffer */
+ urb->transfer_buffer = NULL;
+ urb->num_sgs = nents;
+
+ /* A length of zero means transfer the whole sg list */
+ len = length;
+ if (len == 0) {
+ for_each_sg(sg, sg, nents, i)
+ len += sg->length;
}
- }
- io->urbs[0]->sg = io;
- io->urbs[0]->num_sgs = io->entries;
- io->entries = 1;
- } else {
- urb_flags |= URB_NO_INTERRUPT;
- for_each_sg(sg, sg, io->entries, i) {
- unsigned len;
-
- io->urbs[i] = usb_alloc_urb(0, mem_flags);
- if (!io->urbs[i]) {
- io->entries = i;
- goto nomem;
- }
-
- io->urbs[i]->dev = NULL;
- io->urbs[i]->pipe = pipe;
- io->urbs[i]->interval = period;
- io->urbs[i]->transfer_flags = urb_flags;
-
- io->urbs[i]->complete = sg_complete;
- io->urbs[i]->context = io;
-
+ } else {
/*
- * Some systems need to revert to PIO when DMA is temporarily
- * unavailable. For their sakes, both transfer_buffer and
- * transfer_dma are set when possible.
- *
- * Note that if IOMMU coalescing occurred, we cannot
- * trust sg_page anymore, so check if S/G list shrunk.
+ * Some systems can't use DMA; they use PIO instead.
+ * For their sakes, transfer_buffer is set whenever
+ * possible.
*/
- if (io->nents == io->entries && !PageHighMem(sg_page(sg)))
- io->urbs[i]->transfer_buffer = sg_virt(sg);
+ if (!PageHighMem(sg_page(sg)))
+ urb->transfer_buffer = sg_virt(sg);
else
- io->urbs[i]->transfer_buffer = NULL;
+ urb->transfer_buffer = NULL;
- if (dma) {
- io->urbs[i]->transfer_dma = sg_dma_address(sg);
- len = sg_dma_len(sg);
- } else {
- /* hc may use _only_ transfer_buffer */
- len = sg->length;
- }
-
+ len = sg->length;
if (length) {
len = min_t(unsigned, len, length);
length -= len;
if (length == 0)
io->entries = i + 1;
}
- io->urbs[i]->transfer_buffer_length = len;
}
- io->urbs[--i]->transfer_flags &= ~URB_NO_INTERRUPT;
+ urb->transfer_buffer_length = len;
}
+ io->urbs[--i]->transfer_flags &= ~URB_NO_INTERRUPT;
/* transaction state */
io->count = io->entries;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f073c5c..f22d03d 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -71,6 +71,10 @@
/* SKYMEDI USB_DRIVE */
{ USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* BUILDWIN Photo Frame */
+ { USB_DEVICE(0x1908, 0x1315), .driver_info =
+ USB_QUIRK_HONOR_BNUMINTERFACES },
+
/* INTEL VALUE SSD */
{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 43c002e..06863be 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -383,13 +383,24 @@
static const char on_string[] = "on";
static const char auto_string[] = "auto";
+static void warn_level(void) {
+ static int level_warned;
+
+ if (!level_warned) {
+ level_warned = 1;
+ printk(KERN_WARNING "WARNING! power/level is deprecated; "
+ "use power/control instead\n");
+ }
+}
+
static ssize_t
show_level(struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev = to_usb_device(dev);
const char *p = auto_string;
- if (udev->state != USB_STATE_SUSPENDED && udev->autosuspend_disabled)
+ warn_level();
+ if (udev->state != USB_STATE_SUSPENDED && !udev->dev.power.runtime_auto)
p = on_string;
return sprintf(buf, "%s\n", p);
}
@@ -401,8 +412,9 @@
struct usb_device *udev = to_usb_device(dev);
int len = count;
char *cp;
- int rc;
+ int rc = count;
+ warn_level();
cp = memchr(buf, '\n', count);
if (cp)
len = cp - buf;
@@ -411,17 +423,17 @@
if (len == sizeof on_string - 1 &&
strncmp(buf, on_string, len) == 0)
- rc = usb_disable_autosuspend(udev);
+ usb_disable_autosuspend(udev);
else if (len == sizeof auto_string - 1 &&
strncmp(buf, auto_string, len) == 0)
- rc = usb_enable_autosuspend(udev);
+ usb_enable_autosuspend(udev);
else
rc = -EINVAL;
usb_unlock_device(udev);
- return (rc < 0 ? rc : count);
+ return rc;
}
static DEVICE_ATTR(level, S_IRUGO | S_IWUSR, show_level, set_level);
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 45a32da..7c05555 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -6,7 +6,7 @@
#include <linux/log2.h>
#include <linux/usb.h>
#include <linux/wait.h>
-#include "hcd.h"
+#include <linux/usb/hcd.h>
#define to_urb(d) container_of(d, struct urb, kref)
@@ -308,8 +308,7 @@
* will be required to set urb->ep directly and we will eliminate
* urb->pipe.
*/
- ep = (usb_pipein(urb->pipe) ? dev->ep_in : dev->ep_out)
- [usb_pipeendpoint(urb->pipe)];
+ ep = usb_pipe_endpoint(dev, urb->pipe);
if (!ep)
return -ENOENT;
@@ -333,9 +332,12 @@
is_out = usb_endpoint_dir_out(&ep->desc);
}
- /* Cache the direction for later use */
- urb->transfer_flags = (urb->transfer_flags & ~URB_DIR_MASK) |
- (is_out ? URB_DIR_OUT : URB_DIR_IN);
+ /* Clear the internal flags and cache the direction for later use */
+ urb->transfer_flags &= ~(URB_DIR_MASK | URB_DMA_MAP_SINGLE |
+ URB_DMA_MAP_PAGE | URB_DMA_MAP_SG | URB_MAP_LOCAL |
+ URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL |
+ URB_DMA_SG_COMBINED);
+ urb->transfer_flags |= (is_out ? URB_DIR_OUT : URB_DIR_IN);
if (xfertype != USB_ENDPOINT_XFER_CONTROL &&
dev->state < USB_STATE_CONFIGURED)
@@ -396,8 +398,8 @@
return -EPIPE; /* The most suitable error code :-) */
/* enforce simple/standard policy */
- allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP |
- URB_NO_INTERRUPT | URB_DIR_MASK | URB_FREE_BUFFER);
+ allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT | URB_DIR_MASK |
+ URB_FREE_BUFFER);
switch (xfertype) {
case USB_ENDPOINT_XFER_BULK:
if (is_out)
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 0561430..397b678 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -32,6 +32,7 @@
#include <linux/spinlock.h>
#include <linux/errno.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/mutex.h>
#include <linux/workqueue.h>
#include <linux/debugfs.h>
@@ -41,7 +42,6 @@
#include <linux/mm.h>
#include <linux/dma-mapping.h>
-#include "hcd.h"
#include "usb.h"
@@ -593,76 +593,6 @@
}
EXPORT_SYMBOL_GPL(usb_lock_device_for_reset);
-static struct usb_device *match_device(struct usb_device *dev,
- u16 vendor_id, u16 product_id)
-{
- struct usb_device *ret_dev = NULL;
- int child;
-
- dev_dbg(&dev->dev, "check for vendor %04x, product %04x ...\n",
- le16_to_cpu(dev->descriptor.idVendor),
- le16_to_cpu(dev->descriptor.idProduct));
-
- /* see if this device matches */
- if ((vendor_id == le16_to_cpu(dev->descriptor.idVendor)) &&
- (product_id == le16_to_cpu(dev->descriptor.idProduct))) {
- dev_dbg(&dev->dev, "matched this device!\n");
- ret_dev = usb_get_dev(dev);
- goto exit;
- }
-
- /* look through all of the children of this device */
- for (child = 0; child < dev->maxchild; ++child) {
- if (dev->children[child]) {
- usb_lock_device(dev->children[child]);
- ret_dev = match_device(dev->children[child],
- vendor_id, product_id);
- usb_unlock_device(dev->children[child]);
- if (ret_dev)
- goto exit;
- }
- }
-exit:
- return ret_dev;
-}
-
-/**
- * usb_find_device - find a specific usb device in the system
- * @vendor_id: the vendor id of the device to find
- * @product_id: the product id of the device to find
- *
- * Returns a pointer to a struct usb_device if such a specified usb
- * device is present in the system currently. The usage count of the
- * device will be incremented if a device is found. Make sure to call
- * usb_put_dev() when the caller is finished with the device.
- *
- * If a device with the specified vendor and product id is not found,
- * NULL is returned.
- */
-struct usb_device *usb_find_device(u16 vendor_id, u16 product_id)
-{
- struct list_head *buslist;
- struct usb_bus *bus;
- struct usb_device *dev = NULL;
-
- mutex_lock(&usb_bus_list_lock);
- for (buslist = usb_bus_list.next;
- buslist != &usb_bus_list;
- buslist = buslist->next) {
- bus = container_of(buslist, struct usb_bus, bus_list);
- if (!bus->root_hub)
- continue;
- usb_lock_device(bus->root_hub);
- dev = match_device(bus->root_hub, vendor_id, product_id);
- usb_unlock_device(bus->root_hub);
- if (dev)
- goto exit;
- }
-exit:
- mutex_unlock(&usb_bus_list_lock);
- return dev;
-}
-
/**
* usb_get_current_frame_number - return current bus frame number
* @dev: the device whose bus is being queried
@@ -775,7 +705,7 @@
* @urb: urb whose transfer_buffer/setup_packet will be mapped
*
* Return value is either null (indicating no buffer could be mapped), or
- * the parameter. URB_NO_TRANSFER_DMA_MAP and URB_NO_SETUP_DMA_MAP are
+ * the parameter. URB_NO_TRANSFER_DMA_MAP is
* added to urb->transfer_flags if the operation succeeds. If the device
* is connected to this system through a non-DMA controller, this operation
* always succeeds.
@@ -803,17 +733,11 @@
urb->transfer_buffer, urb->transfer_buffer_length,
usb_pipein(urb->pipe)
? DMA_FROM_DEVICE : DMA_TO_DEVICE);
- if (usb_pipecontrol(urb->pipe))
- urb->setup_dma = dma_map_single(controller,
- urb->setup_packet,
- sizeof(struct usb_ctrlrequest),
- DMA_TO_DEVICE);
/* FIXME generic api broken like pci, can't report errors */
/* if (urb->transfer_dma == DMA_ADDR_INVALID) return 0; */
} else
urb->transfer_dma = ~0;
- urb->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP
- | URB_NO_SETUP_DMA_MAP);
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
return urb;
}
EXPORT_SYMBOL_GPL(usb_buffer_map);
@@ -881,18 +805,13 @@
urb->transfer_dma, urb->transfer_buffer_length,
usb_pipein(urb->pipe)
? DMA_FROM_DEVICE : DMA_TO_DEVICE);
- if (usb_pipecontrol(urb->pipe))
- dma_unmap_single(controller,
- urb->setup_dma,
- sizeof(struct usb_ctrlrequest),
- DMA_TO_DEVICE);
}
- urb->transfer_flags &= ~(URB_NO_TRANSFER_DMA_MAP
- | URB_NO_SETUP_DMA_MAP);
+ urb->transfer_flags &= ~URB_NO_TRANSFER_DMA_MAP;
}
EXPORT_SYMBOL_GPL(usb_buffer_unmap);
#endif /* 0 */
+#if 0
/**
* usb_buffer_map_sg - create scatterlist DMA mapping(s) for an endpoint
* @dev: device to which the scatterlist will be mapped
@@ -936,6 +855,7 @@
is_in ? DMA_FROM_DEVICE : DMA_TO_DEVICE) ? : -ENOMEM;
}
EXPORT_SYMBOL_GPL(usb_buffer_map_sg);
+#endif
/* XXX DISABLED, no users currently. If you wish to re-enable this
* XXX please determine whether the sync is to transfer ownership of
@@ -972,6 +892,7 @@
EXPORT_SYMBOL_GPL(usb_buffer_dmasync_sg);
#endif
+#if 0
/**
* usb_buffer_unmap_sg - free DMA mapping(s) for a scatterlist
* @dev: device to which the scatterlist will be mapped
@@ -997,6 +918,7 @@
is_in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
}
EXPORT_SYMBOL_GPL(usb_buffer_unmap_sg);
+#endif
/* To disable USB, kernel command line is 'nousb' not 'usbcore.nousb' */
#ifdef MODULE
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 11a3e0f..649c0c5 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -710,6 +710,43 @@
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "gadgetfs".
+config USB_FUNCTIONFS
+ tristate "Function Filesystem (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ help
+ The Function Filesystem (FunctioFS) lets one create USB
+ composite functions in user space in the same way as GadgetFS
+ lets one create USB gadgets in user space. This allows creation
+ of composite gadgets such that some of the functions are
+ implemented in kernel space (for instance Ethernet, serial or
+ mass storage) and other are implemented in user space.
+
+ Say "y" to link the driver statically, or "m" to build
+ a dynamically linked module called "g_ffs".
+
+config USB_FUNCTIONFS_ETH
+ bool "Include CDC ECM (Ethernet) function"
+ depends on USB_FUNCTIONFS && NET
+ help
+ Include an CDC ECM (Ethernet) funcion in the CDC ECM (Funcion)
+ Filesystem. If you also say "y" to the RNDIS query below the
+ gadget will have two configurations.
+
+config USB_FUNCTIONFS_RNDIS
+ bool "Include RNDIS (Ethernet) function"
+ depends on USB_FUNCTIONFS && NET
+ help
+ Include an RNDIS (Ethernet) funcion in the Funcion Filesystem.
+ If you also say "y" to the CDC ECM query above the gadget will
+ have two configurations.
+
+config USB_FUNCTIONFS_GENERIC
+ bool "Include 'pure' configuration"
+ depends on USB_FUNCTIONFS && (USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS)
+ help
+ Include a configuration with FunctionFS and no Ethernet
+ configuration.
+
config USB_FILE_STORAGE
tristate "File-backed Storage Gadget"
depends on BLOCK
@@ -863,11 +900,30 @@
If unsure, say "y".
+config USB_G_HID
+ tristate "HID Gadget"
+ help
+ The HID gadget driver provides generic emulation of USB
+ Human Interface Devices (HID).
+
+ For more information, see Documentation/usb/gadget_hid.txt which
+ includes sample code for accessing the device files.
+
+ Say "y" to link the driver statically, or "m" to build a
+ dynamically linked module called "g_hid".
# put drivers that need isochronous transfer support (for audio
# or video class gadget drivers), or specific hardware, here.
+config USB_G_WEBCAM
+ tristate "USB Webcam Gadget"
+ depends on VIDEO_DEV
+ help
+ The Webcam Gadget acts as a composite USB Audio and Video Class
+ device. It provides a userspace API to process UVC control requests
+ and stream video data to the host.
-# - none yet
+ Say "y" to link the driver statically, or "m" to build a
+ dynamically linked module called "g_webcam".
endchoice
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 43b51da..9bcde11 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -20,7 +20,7 @@
obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o
fsl_usb2_udc-objs := fsl_udc_core.o
ifeq ($(CONFIG_ARCH_MXC),y)
-fsl_usb2_udc-objs += fsl_mx3_udc.o
+fsl_usb2_udc-objs += fsl_mxc_udc.o
endif
obj-$(CONFIG_USB_M66592) += m66592-udc.o
obj-$(CONFIG_USB_R8A66597) += r8a66597-udc.o
@@ -43,18 +43,24 @@
g_printer-objs := printer.o
g_cdc-objs := cdc2.o
g_multi-objs := multi.o
+g_hid-objs := hid.o
g_nokia-objs := nokia.o
+g_webcam-objs := webcam.o
obj-$(CONFIG_USB_ZERO) += g_zero.o
obj-$(CONFIG_USB_AUDIO) += g_audio.o
obj-$(CONFIG_USB_ETH) += g_ether.o
obj-$(CONFIG_USB_GADGETFS) += gadgetfs.o
+obj-$(CONFIG_USB_FUNCTIONFS) += g_ffs.o
+obj-$(CONFIG_USB_ETH_FUNCTIONFS) += g_eth_ffs.o
obj-$(CONFIG_USB_FILE_STORAGE) += g_file_storage.o
obj-$(CONFIG_USB_MASS_STORAGE) += g_mass_storage.o
obj-$(CONFIG_USB_G_SERIAL) += g_serial.o
obj-$(CONFIG_USB_G_PRINTER) += g_printer.o
obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o
obj-$(CONFIG_USB_CDC_COMPOSITE) += g_cdc.o
+obj-$(CONFIG_USB_G_HID) += g_hid.o
obj-$(CONFIG_USB_G_MULTI) += g_multi.o
obj-$(CONFIG_USB_G_NOKIA) += g_nokia.o
+obj-$(CONFIG_USB_G_WEBCAM) += g_webcam.o
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 75a256f..d623c7b 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -48,10 +48,9 @@
spin_lock_irq(&ep->udc->lock);
list_for_each_entry(req, &ep->queue, queue) {
- req_copy = kmalloc(sizeof(*req_copy), GFP_ATOMIC);
+ req_copy = kmemdup(req, sizeof(*req_copy), GFP_ATOMIC);
if (!req_copy)
goto fail;
- memcpy(req_copy, req, sizeof(*req_copy));
list_add_tail(&req_copy->queue, queue_data);
}
spin_unlock_irq(&ep->udc->lock);
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 09289bb..391d169 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -36,7 +36,7 @@
*/
/* big enough to hold our biggest descriptor */
-#define USB_BUFSIZ 512
+#define USB_BUFSIZ 1024
static struct usb_composite_driver *composite;
@@ -85,7 +85,7 @@
* This function returns the value of the function's bind(), which is
* zero for success else a negative errno value.
*/
-int __init usb_add_function(struct usb_configuration *config,
+int usb_add_function(struct usb_configuration *config,
struct usb_function *function)
{
int value = -EINVAL;
@@ -215,7 +215,7 @@
* Returns the interface ID which was allocated; or -ENODEV if no
* more interface IDs can be allocated.
*/
-int __init usb_interface_id(struct usb_configuration *config,
+int usb_interface_id(struct usb_configuration *config,
struct usb_function *function)
{
unsigned id = config->next_interface_id;
@@ -480,7 +480,7 @@
* assigns global resources including string IDs, and per-configuration
* resources such as interface IDs and endpoints.
*/
-int __init usb_add_config(struct usb_composite_dev *cdev,
+int usb_add_config(struct usb_composite_dev *cdev,
struct usb_configuration *config)
{
int status = -EINVAL;
@@ -677,7 +677,7 @@
* ensure that for example different functions don't wrongly assign
* different meanings to the same identifier.
*/
-int __init usb_string_id(struct usb_composite_dev *cdev)
+int usb_string_id(struct usb_composite_dev *cdev)
{
if (cdev->next_string_id < 254) {
/* string id 0 is reserved */
@@ -898,7 +898,19 @@
/*-------------------------------------------------------------------------*/
-static void /* __init_or_exit */
+static ssize_t composite_show_suspended(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_gadget *gadget = dev_to_usb_gadget(dev);
+ struct usb_composite_dev *cdev = get_gadget_data(gadget);
+
+ return sprintf(buf, "%d\n", cdev->suspended);
+}
+
+static DEVICE_ATTR(suspended, 0444, composite_show_suspended, NULL);
+
+static void
composite_unbind(struct usb_gadget *gadget)
{
struct usb_composite_dev *cdev = get_gadget_data(gadget);
@@ -944,10 +956,11 @@
}
kfree(cdev);
set_gadget_data(gadget, NULL);
+ device_remove_file(&gadget->dev, &dev_attr_suspended);
composite = NULL;
}
-static void __init
+static void
string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s)
{
struct usb_string *str = tab->strings;
@@ -960,7 +973,7 @@
}
}
-static void __init
+static void
string_override(struct usb_gadget_strings **tab, u8 id, const char *s)
{
while (*tab) {
@@ -969,7 +982,7 @@
}
}
-static int __init composite_bind(struct usb_gadget *gadget)
+static int composite_bind(struct usb_gadget *gadget)
{
struct usb_composite_dev *cdev;
int status = -ENOMEM;
@@ -1004,6 +1017,14 @@
*/
usb_ep_autoconfig_reset(cdev->gadget);
+ /* standardized runtime overrides for device ID data */
+ if (idVendor)
+ cdev->desc.idVendor = cpu_to_le16(idVendor);
+ if (idProduct)
+ cdev->desc.idProduct = cpu_to_le16(idProduct);
+ if (bcdDevice)
+ cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
+
/* composite gadget needs to assign strings for whole device (like
* serial number), register function drivers, potentially update
* power state and consumption, etc
@@ -1015,14 +1036,6 @@
cdev->desc = *composite->dev;
cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
- /* standardized runtime overrides for device ID data */
- if (idVendor)
- cdev->desc.idVendor = cpu_to_le16(idVendor);
- if (idProduct)
- cdev->desc.idProduct = cpu_to_le16(idProduct);
- if (bcdDevice)
- cdev->desc.bcdDevice = cpu_to_le16(bcdDevice);
-
/* strings can't be assigned before bind() allocates the
* releavnt identifiers
*/
@@ -1036,6 +1049,10 @@
string_override(composite->strings,
cdev->desc.iSerialNumber, iSerialNumber);
+ status = device_create_file(&gadget->dev, &dev_attr_suspended);
+ if (status)
+ goto fail;
+
INFO(cdev, "%s ready\n", composite->name);
return 0;
@@ -1064,6 +1081,8 @@
}
if (composite->suspend)
composite->suspend(cdev);
+
+ cdev->suspended = 1;
}
static void
@@ -1084,6 +1103,8 @@
f->resume(f);
}
}
+
+ cdev->suspended = 0;
}
/*-------------------------------------------------------------------------*/
@@ -1092,7 +1113,6 @@
.speed = USB_SPEED_HIGH,
.bind = composite_bind,
- /* .unbind = __exit_p(composite_unbind), */
.unbind = composite_unbind,
.setup = composite_setup,
@@ -1121,7 +1141,7 @@
* while it was binding. That would usually be done in order to wait for
* some userspace participation.
*/
-int __init usb_composite_register(struct usb_composite_driver *driver)
+int usb_composite_register(struct usb_composite_driver *driver)
{
if (!driver || !driver->dev || !driver->bind || composite)
return -EINVAL;
@@ -1142,7 +1162,7 @@
* This function is used to unregister drivers using the composite
* driver framework.
*/
-void /* __exit */ usb_composite_unregister(struct usb_composite_driver *driver)
+void usb_composite_unregister(struct usb_composite_driver *driver)
{
if (composite != driver)
return;
diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index 47e8e72..09084fd 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -128,7 +128,7 @@
* with identifiers (for interfaces, strings, endpoints, and more)
* as needed by a given function instance.
*/
-struct usb_descriptor_header **__init
+struct usb_descriptor_header **
usb_copy_descriptors(struct usb_descriptor_header **src)
{
struct usb_descriptor_header **tmp;
@@ -175,7 +175,7 @@
* intended use is to help remembering the endpoint descriptor to use
* when enabling a given endpoint.
*/
-struct usb_endpoint_descriptor *__init
+struct usb_endpoint_descriptor *
usb_find_endpoint(
struct usb_descriptor_header **src,
struct usb_descriptor_header **copy,
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 5e09664..4f9e578 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -47,6 +47,7 @@
#include <linux/platform_device.h>
#include <linux/usb.h>
#include <linux/usb/gadget.h>
+#include <linux/usb/hcd.h>
#include <asm/byteorder.h>
#include <asm/io.h>
@@ -55,9 +56,6 @@
#include <asm/unaligned.h>
-#include "../core/hcd.h"
-
-
#define DRIVER_DESC "USB Host+Gadget Emulator"
#define DRIVER_VERSION "02 May 2005"
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 3568de2..8a83248 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -34,12 +34,12 @@
/* we must assign addresses for configurable endpoints (like net2280) */
-static __initdata unsigned epnum;
+static unsigned epnum;
// #define MANY_ENDPOINTS
#ifdef MANY_ENDPOINTS
/* more than 15 configurable endpoints */
-static __initdata unsigned in_epnum;
+static unsigned in_epnum;
#endif
@@ -59,7 +59,7 @@
* NOTE: each endpoint is unidirectional, as specified by its USB
* descriptor; and isn't specific to a configuration or altsetting.
*/
-static int __init
+static int
ep_matches (
struct usb_gadget *gadget,
struct usb_ep *ep,
@@ -187,7 +187,7 @@
return 1;
}
-static struct usb_ep * __init
+static struct usb_ep *
find_ep (struct usb_gadget *gadget, const char *name)
{
struct usb_ep *ep;
@@ -229,7 +229,7 @@
*
* On failure, this returns a null endpoint descriptor.
*/
-struct usb_ep * __init usb_ep_autoconfig (
+struct usb_ep *usb_ep_autoconfig (
struct usb_gadget *gadget,
struct usb_endpoint_descriptor *desc
)
@@ -304,7 +304,7 @@
* state such as ep->driver_data and the record of assigned endpoints
* used by usb_ep_autoconfig().
*/
-void __init usb_ep_autoconfig_reset (struct usb_gadget *gadget)
+void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
{
struct usb_ep *ep;
diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c
index 400e1eb..d47a123 100644
--- a/drivers/usb/gadget/f_acm.c
+++ b/drivers/usb/gadget/f_acm.c
@@ -116,7 +116,7 @@
};
-static struct usb_interface_descriptor acm_control_interface_desc __initdata = {
+static struct usb_interface_descriptor acm_control_interface_desc = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
/* .bInterfaceNumber = DYNAMIC */
@@ -127,7 +127,7 @@
/* .iInterface = DYNAMIC */
};
-static struct usb_interface_descriptor acm_data_interface_desc __initdata = {
+static struct usb_interface_descriptor acm_data_interface_desc = {
.bLength = USB_DT_INTERFACE_SIZE,
.bDescriptorType = USB_DT_INTERFACE,
/* .bInterfaceNumber = DYNAMIC */
@@ -138,7 +138,7 @@
/* .iInterface = DYNAMIC */
};
-static struct usb_cdc_header_desc acm_header_desc __initdata = {
+static struct usb_cdc_header_desc acm_header_desc = {
.bLength = sizeof(acm_header_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_HEADER_TYPE,
@@ -146,7 +146,7 @@
};
static struct usb_cdc_call_mgmt_descriptor
-acm_call_mgmt_descriptor __initdata = {
+acm_call_mgmt_descriptor = {
.bLength = sizeof(acm_call_mgmt_descriptor),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE,
@@ -154,14 +154,14 @@
/* .bDataInterface = DYNAMIC */
};
-static struct usb_cdc_acm_descriptor acm_descriptor __initdata = {
+static struct usb_cdc_acm_descriptor acm_descriptor = {
.bLength = sizeof(acm_descriptor),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_ACM_TYPE,
.bmCapabilities = USB_CDC_CAP_LINE,
};
-static struct usb_cdc_union_desc acm_union_desc __initdata = {
+static struct usb_cdc_union_desc acm_union_desc = {
.bLength = sizeof(acm_union_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_UNION_TYPE,
@@ -171,7 +171,7 @@
/* full speed support: */
-static struct usb_endpoint_descriptor acm_fs_notify_desc __initdata = {
+static struct usb_endpoint_descriptor acm_fs_notify_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
@@ -180,21 +180,21 @@
.bInterval = 1 << GS_LOG2_NOTIFY_INTERVAL,
};
-static struct usb_endpoint_descriptor acm_fs_in_desc __initdata = {
+static struct usb_endpoint_descriptor acm_fs_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static struct usb_endpoint_descriptor acm_fs_out_desc __initdata = {
+static struct usb_endpoint_descriptor acm_fs_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_OUT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static struct usb_descriptor_header *acm_fs_function[] __initdata = {
+static struct usb_descriptor_header *acm_fs_function[] = {
(struct usb_descriptor_header *) &acm_iad_descriptor,
(struct usb_descriptor_header *) &acm_control_interface_desc,
(struct usb_descriptor_header *) &acm_header_desc,
@@ -210,7 +210,7 @@
/* high speed support: */
-static struct usb_endpoint_descriptor acm_hs_notify_desc __initdata = {
+static struct usb_endpoint_descriptor acm_hs_notify_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bEndpointAddress = USB_DIR_IN,
@@ -219,21 +219,21 @@
.bInterval = GS_LOG2_NOTIFY_INTERVAL+4,
};
-static struct usb_endpoint_descriptor acm_hs_in_desc __initdata = {
+static struct usb_endpoint_descriptor acm_hs_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(512),
};
-static struct usb_endpoint_descriptor acm_hs_out_desc __initdata = {
+static struct usb_endpoint_descriptor acm_hs_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = cpu_to_le16(512),
};
-static struct usb_descriptor_header *acm_hs_function[] __initdata = {
+static struct usb_descriptor_header *acm_hs_function[] = {
(struct usb_descriptor_header *) &acm_iad_descriptor,
(struct usb_descriptor_header *) &acm_control_interface_desc,
(struct usb_descriptor_header *) &acm_header_desc,
@@ -571,7 +571,7 @@
/*-------------------------------------------------------------------------*/
/* ACM function driver setup/binding */
-static int __init
+static int
acm_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
@@ -719,7 +719,7 @@
* handle all the ones it binds. Caller is also responsible
* for calling @gserial_cleanup() before module unload.
*/
-int __init acm_bind_config(struct usb_configuration *c, u8 port_num)
+int acm_bind_config(struct usb_configuration *c, u8 port_num)
{
struct f_acm *acm;
int status;
diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c
index 4e595324..544257a8 100644
--- a/drivers/usb/gadget/f_ecm.c
+++ b/drivers/usb/gadget/f_ecm.c
@@ -113,7 +113,7 @@
/* interface descriptor: */
-static struct usb_interface_descriptor ecm_control_intf __initdata = {
+static struct usb_interface_descriptor ecm_control_intf = {
.bLength = sizeof ecm_control_intf,
.bDescriptorType = USB_DT_INTERFACE,
@@ -126,7 +126,7 @@
/* .iInterface = DYNAMIC */
};
-static struct usb_cdc_header_desc ecm_header_desc __initdata = {
+static struct usb_cdc_header_desc ecm_header_desc = {
.bLength = sizeof ecm_header_desc,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_HEADER_TYPE,
@@ -134,7 +134,7 @@
.bcdCDC = cpu_to_le16(0x0110),
};
-static struct usb_cdc_union_desc ecm_union_desc __initdata = {
+static struct usb_cdc_union_desc ecm_union_desc = {
.bLength = sizeof(ecm_union_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_UNION_TYPE,
@@ -142,7 +142,7 @@
/* .bSlaveInterface0 = DYNAMIC */
};
-static struct usb_cdc_ether_desc ecm_desc __initdata = {
+static struct usb_cdc_ether_desc ecm_desc = {
.bLength = sizeof ecm_desc,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_ETHERNET_TYPE,
@@ -157,7 +157,7 @@
/* the default data interface has no endpoints ... */
-static struct usb_interface_descriptor ecm_data_nop_intf __initdata = {
+static struct usb_interface_descriptor ecm_data_nop_intf = {
.bLength = sizeof ecm_data_nop_intf,
.bDescriptorType = USB_DT_INTERFACE,
@@ -172,7 +172,7 @@
/* ... but the "real" data interface has two bulk endpoints */
-static struct usb_interface_descriptor ecm_data_intf __initdata = {
+static struct usb_interface_descriptor ecm_data_intf = {
.bLength = sizeof ecm_data_intf,
.bDescriptorType = USB_DT_INTERFACE,
@@ -187,7 +187,7 @@
/* full speed support: */
-static struct usb_endpoint_descriptor fs_ecm_notify_desc __initdata = {
+static struct usb_endpoint_descriptor fs_ecm_notify_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -197,7 +197,7 @@
.bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC,
};
-static struct usb_endpoint_descriptor fs_ecm_in_desc __initdata = {
+static struct usb_endpoint_descriptor fs_ecm_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -205,7 +205,7 @@
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static struct usb_endpoint_descriptor fs_ecm_out_desc __initdata = {
+static struct usb_endpoint_descriptor fs_ecm_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -213,7 +213,7 @@
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static struct usb_descriptor_header *ecm_fs_function[] __initdata = {
+static struct usb_descriptor_header *ecm_fs_function[] = {
/* CDC ECM control descriptors */
(struct usb_descriptor_header *) &ecm_control_intf,
(struct usb_descriptor_header *) &ecm_header_desc,
@@ -231,7 +231,7 @@
/* high speed support: */
-static struct usb_endpoint_descriptor hs_ecm_notify_desc __initdata = {
+static struct usb_endpoint_descriptor hs_ecm_notify_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -240,7 +240,7 @@
.wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT),
.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
};
-static struct usb_endpoint_descriptor hs_ecm_in_desc __initdata = {
+static struct usb_endpoint_descriptor hs_ecm_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -249,7 +249,7 @@
.wMaxPacketSize = cpu_to_le16(512),
};
-static struct usb_endpoint_descriptor hs_ecm_out_desc __initdata = {
+static struct usb_endpoint_descriptor hs_ecm_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -258,7 +258,7 @@
.wMaxPacketSize = cpu_to_le16(512),
};
-static struct usb_descriptor_header *ecm_hs_function[] __initdata = {
+static struct usb_descriptor_header *ecm_hs_function[] = {
/* CDC ECM control descriptors */
(struct usb_descriptor_header *) &ecm_control_intf,
(struct usb_descriptor_header *) &ecm_header_desc,
@@ -597,7 +597,7 @@
/* ethernet function driver setup/binding */
-static int __init
+static int
ecm_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
@@ -763,7 +763,8 @@
* Caller must have called @gether_setup(). Caller is also responsible
* for calling @gether_cleanup() before module unload.
*/
-int __init ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
+int
+ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
{
struct f_ecm *ecm;
int status;
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
new file mode 100644
index 0000000..d69eccf
--- /dev/null
+++ b/drivers/usb/gadget/f_fs.c
@@ -0,0 +1,2442 @@
+/*
+ * f_fs.c -- user mode filesystem api for usb composite funtcion controllers
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ * Author: Michal Nazarewicz <m.nazarewicz@samsung.com>
+ *
+ * Based on inode.c (GadgetFS):
+ * Copyright (C) 2003-2004 David Brownell
+ * Copyright (C) 2003 Agilent Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/* #define DEBUG */
+/* #define VERBOSE_DEBUG */
+
+#include <linux/blkdev.h>
+#include <linux/pagemap.h>
+#include <asm/unaligned.h>
+#include <linux/smp_lock.h>
+
+#include <linux/usb/composite.h>
+#include <linux/usb/functionfs.h>
+
+
+#define FUNCTIONFS_MAGIC 0xa647361 /* Chosen by a honest dice roll ;) */
+
+
+/* Debuging *****************************************************************/
+
+#define ffs_printk(level, fmt, args...) printk(level "f_fs: " fmt "\n", ## args)
+
+#define FERR(...) ffs_printk(KERN_ERR, __VA_ARGS__)
+#define FINFO(...) ffs_printk(KERN_INFO, __VA_ARGS__)
+
+#ifdef DEBUG
+# define FDBG(...) ffs_printk(KERN_DEBUG, __VA_ARGS__)
+#else
+# define FDBG(...) do { } while (0)
+#endif /* DEBUG */
+
+#ifdef VERBOSE_DEBUG
+# define FVDBG FDBG
+#else
+# define FVDBG(...) do { } while (0)
+#endif /* VERBOSE_DEBUG */
+
+#define ENTER() FVDBG("%s()", __func__)
+
+#ifdef VERBOSE_DEBUG
+# define ffs_dump_mem(prefix, ptr, len) \
+ print_hex_dump_bytes("f_fs" prefix ": ", DUMP_PREFIX_NONE, ptr, len)
+#else
+# define ffs_dump_mem(prefix, ptr, len) do { } while (0)
+#endif
+
+
+/* The data structure and setup file ****************************************/
+
+enum ffs_state {
+ /* Waiting for descriptors and strings. */
+ /* In this state no open(2), read(2) or write(2) on epfiles
+ * may succeed (which should not be the problem as there
+ * should be no such files opened in the firts place). */
+ FFS_READ_DESCRIPTORS,
+ FFS_READ_STRINGS,
+
+ /* We've got descriptors and strings. We are or have called
+ * functionfs_ready_callback(). functionfs_bind() may have
+ * been called but we don't know. */
+ /* This is the only state in which operations on epfiles may
+ * succeed. */
+ FFS_ACTIVE,
+
+ /* All endpoints have been closed. This state is also set if
+ * we encounter an unrecoverable error. The only
+ * unrecoverable error is situation when after reading strings
+ * from user space we fail to initialise EP files or
+ * functionfs_ready_callback() returns with error (<0). */
+ /* In this state no open(2), read(2) or write(2) (both on ep0
+ * as well as epfile) may succeed (at this point epfiles are
+ * unlinked and all closed so this is not a problem; ep0 is
+ * also closed but ep0 file exists and so open(2) on ep0 must
+ * fail). */
+ FFS_CLOSING
+};
+
+
+enum ffs_setup_state {
+ /* There is no setup request pending. */
+ FFS_NO_SETUP,
+ /* User has read events and there was a setup request event
+ * there. The next read/write on ep0 will handle the
+ * request. */
+ FFS_SETUP_PENDING,
+ /* There was event pending but before user space handled it
+ * some other event was introduced which canceled existing
+ * setup. If this state is set read/write on ep0 return
+ * -EIDRM. This state is only set when adding event. */
+ FFS_SETUP_CANCELED
+};
+
+
+
+struct ffs_epfile;
+struct ffs_function;
+
+struct ffs_data {
+ struct usb_gadget *gadget;
+
+ /* Protect access read/write operations, only one read/write
+ * at a time. As a consequence protects ep0req and company.
+ * While setup request is being processed (queued) this is
+ * held. */
+ struct mutex mutex;
+
+ /* Protect access to enpoint related structures (basically
+ * usb_ep_queue(), usb_ep_dequeue(), etc. calls) except for
+ * endpint zero. */
+ spinlock_t eps_lock;
+
+ /* XXX REVISIT do we need our own request? Since we are not
+ * handling setup requests immidiatelly user space may be so
+ * slow that another setup will be sent to the gadget but this
+ * time not to us but another function and then there could be
+ * a race. Is taht the case? Or maybe we can use cdev->req
+ * after all, maybe we just need some spinlock for that? */
+ struct usb_request *ep0req; /* P: mutex */
+ struct completion ep0req_completion; /* P: mutex */
+ int ep0req_status; /* P: mutex */
+
+ /* reference counter */
+ atomic_t ref;
+ /* how many files are opened (EP0 and others) */
+ atomic_t opened;
+
+ /* EP0 state */
+ enum ffs_state state;
+
+ /*
+ * Possible transations:
+ * + FFS_NO_SETUP -> FFS_SETUP_PENDING -- P: ev.waitq.lock
+ * happens only in ep0 read which is P: mutex
+ * + FFS_SETUP_PENDING -> FFS_NO_SETUP -- P: ev.waitq.lock
+ * happens only in ep0 i/o which is P: mutex
+ * + FFS_SETUP_PENDING -> FFS_SETUP_CANCELED -- P: ev.waitq.lock
+ * + FFS_SETUP_CANCELED -> FFS_NO_SETUP -- cmpxchg
+ */
+ enum ffs_setup_state setup_state;
+
+#define FFS_SETUP_STATE(ffs) \
+ ((enum ffs_setup_state)cmpxchg(&(ffs)->setup_state, \
+ FFS_SETUP_CANCELED, FFS_NO_SETUP))
+
+ /* Events & such. */
+ struct {
+ u8 types[4];
+ unsigned short count;
+ /* XXX REVISIT need to update it in some places, or do we? */
+ unsigned short can_stall;
+ struct usb_ctrlrequest setup;
+
+ wait_queue_head_t waitq;
+ } ev; /* the whole structure, P: ev.waitq.lock */
+
+ /* Flags */
+ unsigned long flags;
+#define FFS_FL_CALL_CLOSED_CALLBACK 0
+#define FFS_FL_BOUND 1
+
+ /* Active function */
+ struct ffs_function *func;
+
+ /* Device name, write once when file system is mounted.
+ * Intendet for user to read if she wants. */
+ const char *dev_name;
+ /* Private data for our user (ie. gadget). Managed by
+ * user. */
+ void *private_data;
+
+ /* filled by __ffs_data_got_descs() */
+ /* real descriptors are 16 bytes after raw_descs (so you need
+ * to skip 16 bytes (ie. ffs->raw_descs + 16) to get to the
+ * first full speed descriptor). raw_descs_length and
+ * raw_fs_descs_length do not have those 16 bytes added. */
+ const void *raw_descs;
+ unsigned raw_descs_length;
+ unsigned raw_fs_descs_length;
+ unsigned fs_descs_count;
+ unsigned hs_descs_count;
+
+ unsigned short strings_count;
+ unsigned short interfaces_count;
+ unsigned short eps_count;
+ unsigned short _pad1;
+
+ /* filled by __ffs_data_got_strings() */
+ /* ids in stringtabs are set in functionfs_bind() */
+ const void *raw_strings;
+ struct usb_gadget_strings **stringtabs;
+
+ /* File system's super block, write once when file system is mounted. */
+ struct super_block *sb;
+
+ /* File permissions, written once when fs is mounted*/
+ struct ffs_file_perms {
+ umode_t mode;
+ uid_t uid;
+ gid_t gid;
+ } file_perms;
+
+ /* The endpoint files, filled by ffs_epfiles_create(),
+ * destroyed by ffs_epfiles_destroy(). */
+ struct ffs_epfile *epfiles;
+};
+
+/* Reference counter handling */
+static void ffs_data_get(struct ffs_data *ffs);
+static void ffs_data_put(struct ffs_data *ffs);
+/* Creates new ffs_data object. */
+static struct ffs_data *__must_check ffs_data_new(void) __attribute__((malloc));
+
+/* Opened counter handling. */
+static void ffs_data_opened(struct ffs_data *ffs);
+static void ffs_data_closed(struct ffs_data *ffs);
+
+/* Called with ffs->mutex held; take over ownerrship of data. */
+static int __must_check
+__ffs_data_got_descs(struct ffs_data *ffs, char *data, size_t len);
+static int __must_check
+__ffs_data_got_strings(struct ffs_data *ffs, char *data, size_t len);
+
+
+/* The function structure ***************************************************/
+
+struct ffs_ep;
+
+struct ffs_function {
+ struct usb_configuration *conf;
+ struct usb_gadget *gadget;
+ struct ffs_data *ffs;
+
+ struct ffs_ep *eps;
+ u8 eps_revmap[16];
+ short *interfaces_nums;
+
+ struct usb_function function;
+};
+
+
+static struct ffs_function *ffs_func_from_usb(struct usb_function *f)
+{
+ return container_of(f, struct ffs_function, function);
+}
+
+static void ffs_func_free(struct ffs_function *func);
+
+
+static void ffs_func_eps_disable(struct ffs_function *func);
+static int __must_check ffs_func_eps_enable(struct ffs_function *func);
+
+
+static int ffs_func_bind(struct usb_configuration *,
+ struct usb_function *);
+static void ffs_func_unbind(struct usb_configuration *,
+ struct usb_function *);
+static int ffs_func_set_alt(struct usb_function *, unsigned, unsigned);
+static void ffs_func_disable(struct usb_function *);
+static int ffs_func_setup(struct usb_function *,
+ const struct usb_ctrlrequest *);
+static void ffs_func_suspend(struct usb_function *);
+static void ffs_func_resume(struct usb_function *);
+
+
+static int ffs_func_revmap_ep(struct ffs_function *func, u8 num);
+static int ffs_func_revmap_intf(struct ffs_function *func, u8 intf);
+
+
+
+/* The endpoints structures *************************************************/
+
+struct ffs_ep {
+ struct usb_ep *ep; /* P: ffs->eps_lock */
+ struct usb_request *req; /* P: epfile->mutex */
+
+ /* [0]: full speed, [1]: high speed */
+ struct usb_endpoint_descriptor *descs[2];
+
+ u8 num;
+
+ int status; /* P: epfile->mutex */
+};
+
+struct ffs_epfile {
+ /* Protects ep->ep and ep->req. */
+ struct mutex mutex;
+ wait_queue_head_t wait;
+
+ struct ffs_data *ffs;
+ struct ffs_ep *ep; /* P: ffs->eps_lock */
+
+ struct dentry *dentry;
+
+ char name[5];
+
+ unsigned char in; /* P: ffs->eps_lock */
+ unsigned char isoc; /* P: ffs->eps_lock */
+
+ unsigned char _pad;
+};
+
+
+static int __must_check ffs_epfiles_create(struct ffs_data *ffs);
+static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count);
+
+static struct inode *__must_check
+ffs_sb_create_file(struct super_block *sb, const char *name, void *data,
+ const struct file_operations *fops,
+ struct dentry **dentry_p);
+
+
+/* Misc helper functions ****************************************************/
+
+static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
+ __attribute__((warn_unused_result, nonnull));
+static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+ __attribute__((warn_unused_result, nonnull));
+
+
+/* Control file aka ep0 *****************************************************/
+
+static void ffs_ep0_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct ffs_data *ffs = req->context;
+
+ complete_all(&ffs->ep0req_completion);
+}
+
+
+static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)
+{
+ struct usb_request *req = ffs->ep0req;
+ int ret;
+
+ req->zero = len < le16_to_cpu(ffs->ev.setup.wLength);
+
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+
+ req->buf = data;
+ req->length = len;
+
+ INIT_COMPLETION(ffs->ep0req_completion);
+
+ ret = usb_ep_queue(ffs->gadget->ep0, req, GFP_ATOMIC);
+ if (unlikely(ret < 0))
+ return ret;
+
+ ret = wait_for_completion_interruptible(&ffs->ep0req_completion);
+ if (unlikely(ret)) {
+ usb_ep_dequeue(ffs->gadget->ep0, req);
+ return -EINTR;
+ }
+
+ ffs->setup_state = FFS_NO_SETUP;
+ return ffs->ep0req_status;
+}
+
+static int __ffs_ep0_stall(struct ffs_data *ffs)
+{
+ if (ffs->ev.can_stall) {
+ FVDBG("ep0 stall\n");
+ usb_ep_set_halt(ffs->gadget->ep0);
+ ffs->setup_state = FFS_NO_SETUP;
+ return -EL2HLT;
+ } else {
+ FDBG("bogus ep0 stall!\n");
+ return -ESRCH;
+ }
+}
+
+
+static ssize_t ffs_ep0_write(struct file *file, const char __user *buf,
+ size_t len, loff_t *ptr)
+{
+ struct ffs_data *ffs = file->private_data;
+ ssize_t ret;
+ char *data;
+
+ ENTER();
+
+ /* Fast check if setup was canceled */
+ if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED)
+ return -EIDRM;
+
+ /* Acquire mutex */
+ ret = ffs_mutex_lock(&ffs->mutex, file->f_flags & O_NONBLOCK);
+ if (unlikely(ret < 0))
+ return ret;
+
+
+ /* Check state */
+ switch (ffs->state) {
+ case FFS_READ_DESCRIPTORS:
+ case FFS_READ_STRINGS:
+ /* Copy data */
+ if (unlikely(len < 16)) {
+ ret = -EINVAL;
+ break;
+ }
+
+ data = ffs_prepare_buffer(buf, len);
+ if (unlikely(IS_ERR(data))) {
+ ret = PTR_ERR(data);
+ break;
+ }
+
+ /* Handle data */
+ if (ffs->state == FFS_READ_DESCRIPTORS) {
+ FINFO("read descriptors");
+ ret = __ffs_data_got_descs(ffs, data, len);
+ if (unlikely(ret < 0))
+ break;
+
+ ffs->state = FFS_READ_STRINGS;
+ ret = len;
+ } else {
+ FINFO("read strings");
+ ret = __ffs_data_got_strings(ffs, data, len);
+ if (unlikely(ret < 0))
+ break;
+
+ ret = ffs_epfiles_create(ffs);
+ if (unlikely(ret)) {
+ ffs->state = FFS_CLOSING;
+ break;
+ }
+
+ ffs->state = FFS_ACTIVE;
+ mutex_unlock(&ffs->mutex);
+
+ ret = functionfs_ready_callback(ffs);
+ if (unlikely(ret < 0)) {
+ ffs->state = FFS_CLOSING;
+ return ret;
+ }
+
+ set_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags);
+ return len;
+ }
+ break;
+
+
+ case FFS_ACTIVE:
+ data = NULL;
+ /* We're called from user space, we can use _irq
+ * rather then _irqsave */
+ spin_lock_irq(&ffs->ev.waitq.lock);
+ switch (FFS_SETUP_STATE(ffs)) {
+ case FFS_SETUP_CANCELED:
+ ret = -EIDRM;
+ goto done_spin;
+
+ case FFS_NO_SETUP:
+ ret = -ESRCH;
+ goto done_spin;
+
+ case FFS_SETUP_PENDING:
+ break;
+ }
+
+ /* FFS_SETUP_PENDING */
+ if (!(ffs->ev.setup.bRequestType & USB_DIR_IN)) {
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+ ret = __ffs_ep0_stall(ffs);
+ break;
+ }
+
+ /* FFS_SETUP_PENDING and not stall */
+ len = min(len, (size_t)le16_to_cpu(ffs->ev.setup.wLength));
+
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+
+ data = ffs_prepare_buffer(buf, len);
+ if (unlikely(IS_ERR(data))) {
+ ret = PTR_ERR(data);
+ break;
+ }
+
+ spin_lock_irq(&ffs->ev.waitq.lock);
+
+ /* We are guaranteed to be still in FFS_ACTIVE state
+ * but the state of setup could have changed from
+ * FFS_SETUP_PENDING to FFS_SETUP_CANCELED so we need
+ * to check for that. If that happened we copied data
+ * from user space in vain but it's unlikely. */
+ /* For sure we are not in FFS_NO_SETUP since this is
+ * the only place FFS_SETUP_PENDING -> FFS_NO_SETUP
+ * transition can be performed and it's protected by
+ * mutex. */
+
+ if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED) {
+ ret = -EIDRM;
+done_spin:
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+ } else {
+ /* unlocks spinlock */
+ ret = __ffs_ep0_queue_wait(ffs, data, len);
+ }
+ kfree(data);
+ break;
+
+
+ default:
+ ret = -EBADFD;
+ break;
+ }
+
+
+ mutex_unlock(&ffs->mutex);
+ return ret;
+}
+
+
+
+static ssize_t __ffs_ep0_read_events(struct ffs_data *ffs, char __user *buf,
+ size_t n)
+{
+ /* We are holding ffs->ev.waitq.lock and ffs->mutex and we need
+ * to release them. */
+
+ struct usb_functionfs_event events[n];
+ unsigned i = 0;
+
+ memset(events, 0, sizeof events);
+
+ do {
+ events[i].type = ffs->ev.types[i];
+ if (events[i].type == FUNCTIONFS_SETUP) {
+ events[i].u.setup = ffs->ev.setup;
+ ffs->setup_state = FFS_SETUP_PENDING;
+ }
+ } while (++i < n);
+
+ if (n < ffs->ev.count) {
+ ffs->ev.count -= n;
+ memmove(ffs->ev.types, ffs->ev.types + n,
+ ffs->ev.count * sizeof *ffs->ev.types);
+ } else {
+ ffs->ev.count = 0;
+ }
+
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+ mutex_unlock(&ffs->mutex);
+
+ return unlikely(__copy_to_user(buf, events, sizeof events))
+ ? -EFAULT : sizeof events;
+}
+
+
+static ssize_t ffs_ep0_read(struct file *file, char __user *buf,
+ size_t len, loff_t *ptr)
+{
+ struct ffs_data *ffs = file->private_data;
+ char *data = NULL;
+ size_t n;
+ int ret;
+
+ ENTER();
+
+ /* Fast check if setup was canceled */
+ if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED)
+ return -EIDRM;
+
+ /* Acquire mutex */
+ ret = ffs_mutex_lock(&ffs->mutex, file->f_flags & O_NONBLOCK);
+ if (unlikely(ret < 0))
+ return ret;
+
+
+ /* Check state */
+ if (ffs->state != FFS_ACTIVE) {
+ ret = -EBADFD;
+ goto done_mutex;
+ }
+
+
+ /* We're called from user space, we can use _irq rather then
+ * _irqsave */
+ spin_lock_irq(&ffs->ev.waitq.lock);
+
+ switch (FFS_SETUP_STATE(ffs)) {
+ case FFS_SETUP_CANCELED:
+ ret = -EIDRM;
+ break;
+
+ case FFS_NO_SETUP:
+ n = len / sizeof(struct usb_functionfs_event);
+ if (unlikely(!n)) {
+ ret = -EINVAL;
+ break;
+ }
+
+ if ((file->f_flags & O_NONBLOCK) && !ffs->ev.count) {
+ ret = -EAGAIN;
+ break;
+ }
+
+ if (unlikely(wait_event_interruptible_exclusive_locked_irq(ffs->ev.waitq, ffs->ev.count))) {
+ ret = -EINTR;
+ break;
+ }
+
+ return __ffs_ep0_read_events(ffs, buf,
+ min(n, (size_t)ffs->ev.count));
+
+
+ case FFS_SETUP_PENDING:
+ if (ffs->ev.setup.bRequestType & USB_DIR_IN) {
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+ ret = __ffs_ep0_stall(ffs);
+ goto done_mutex;
+ }
+
+ len = min(len, (size_t)le16_to_cpu(ffs->ev.setup.wLength));
+
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+
+ if (likely(len)) {
+ data = kmalloc(len, GFP_KERNEL);
+ if (unlikely(!data)) {
+ ret = -ENOMEM;
+ goto done_mutex;
+ }
+ }
+
+ spin_lock_irq(&ffs->ev.waitq.lock);
+
+ /* See ffs_ep0_write() */
+ if (FFS_SETUP_STATE(ffs) == FFS_SETUP_CANCELED) {
+ ret = -EIDRM;
+ break;
+ }
+
+ /* unlocks spinlock */
+ ret = __ffs_ep0_queue_wait(ffs, data, len);
+ if (likely(ret > 0) && unlikely(__copy_to_user(buf, data, len)))
+ ret = -EFAULT;
+ goto done_mutex;
+
+ default:
+ ret = -EBADFD;
+ break;
+ }
+
+ spin_unlock_irq(&ffs->ev.waitq.lock);
+done_mutex:
+ mutex_unlock(&ffs->mutex);
+ kfree(data);
+ return ret;
+}
+
+
+
+static int ffs_ep0_open(struct inode *inode, struct file *file)
+{
+ struct ffs_data *ffs = inode->i_private;
+
+ ENTER();
+
+ if (unlikely(ffs->state == FFS_CLOSING))
+ return -EBUSY;
+
+ file->private_data = ffs;
+ ffs_data_opened(ffs);
+
+ return 0;
+}
+
+
+static int ffs_ep0_release(struct inode *inode, struct file *file)
+{
+ struct ffs_data *ffs = file->private_data;
+
+ ENTER();
+
+ ffs_data_closed(ffs);
+
+ return 0;
+}
+
+
+static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value)
+{
+ struct ffs_data *ffs = file->private_data;
+ struct usb_gadget *gadget = ffs->gadget;
+ long ret;
+
+ ENTER();
+
+ if (code == FUNCTIONFS_INTERFACE_REVMAP) {
+ struct ffs_function *func = ffs->func;
+ ret = func ? ffs_func_revmap_intf(func, value) : -ENODEV;
+ } else if (gadget->ops->ioctl) {
+ lock_kernel();
+ ret = gadget->ops->ioctl(gadget, code, value);
+ unlock_kernel();
+ } else {
+ ret = -ENOTTY;
+ }
+
+ return ret;
+}
+
+
+static const struct file_operations ffs_ep0_operations = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+
+ .open = ffs_ep0_open,
+ .write = ffs_ep0_write,
+ .read = ffs_ep0_read,
+ .release = ffs_ep0_release,
+ .unlocked_ioctl = ffs_ep0_ioctl,
+};
+
+
+/* "Normal" endpoints operations ********************************************/
+
+
+static void ffs_epfile_io_complete(struct usb_ep *_ep, struct usb_request *req)
+{
+ ENTER();
+ if (likely(req->context)) {
+ struct ffs_ep *ep = _ep->driver_data;
+ ep->status = req->status ? req->status : req->actual;
+ complete(req->context);
+ }
+}
+
+
+static ssize_t ffs_epfile_io(struct file *file,
+ char __user *buf, size_t len, int read)
+{
+ struct ffs_epfile *epfile = file->private_data;
+ struct ffs_ep *ep;
+ char *data = NULL;
+ ssize_t ret;
+ int halt;
+
+ goto first_try;
+ do {
+ spin_unlock_irq(&epfile->ffs->eps_lock);
+ mutex_unlock(&epfile->mutex);
+
+first_try:
+ /* Are we still active? */
+ if (WARN_ON(epfile->ffs->state != FFS_ACTIVE)) {
+ ret = -ENODEV;
+ goto error;
+ }
+
+ /* Wait for endpoint to be enabled */
+ ep = epfile->ep;
+ if (!ep) {
+ if (file->f_flags & O_NONBLOCK) {
+ ret = -EAGAIN;
+ goto error;
+ }
+
+ if (unlikely(wait_event_interruptible
+ (epfile->wait, (ep = epfile->ep)))) {
+ ret = -EINTR;
+ goto error;
+ }
+ }
+
+ /* Do we halt? */
+ halt = !read == !epfile->in;
+ if (halt && epfile->isoc) {
+ ret = -EINVAL;
+ goto error;
+ }
+
+ /* Allocate & copy */
+ if (!halt && !data) {
+ data = kzalloc(len, GFP_KERNEL);
+ if (unlikely(!data))
+ return -ENOMEM;
+
+ if (!read &&
+ unlikely(__copy_from_user(data, buf, len))) {
+ ret = -EFAULT;
+ goto error;
+ }
+ }
+
+ /* We will be using request */
+ ret = ffs_mutex_lock(&epfile->mutex,
+ file->f_flags & O_NONBLOCK);
+ if (unlikely(ret))
+ goto error;
+
+ /* We're called from user space, we can use _irq rather then
+ * _irqsave */
+ spin_lock_irq(&epfile->ffs->eps_lock);
+
+ /* While we were acquiring mutex endpoint got disabled
+ * or changed? */
+ } while (unlikely(epfile->ep != ep));
+
+ /* Halt */
+ if (unlikely(halt)) {
+ if (likely(epfile->ep == ep) && !WARN_ON(!ep->ep))
+ usb_ep_set_halt(ep->ep);
+ spin_unlock_irq(&epfile->ffs->eps_lock);
+ ret = -EBADMSG;
+ } else {
+ /* Fire the request */
+ DECLARE_COMPLETION_ONSTACK(done);
+
+ struct usb_request *req = ep->req;
+ req->context = &done;
+ req->complete = ffs_epfile_io_complete;
+ req->buf = data;
+ req->length = len;
+
+ ret = usb_ep_queue(ep->ep, req, GFP_ATOMIC);
+
+ spin_unlock_irq(&epfile->ffs->eps_lock);
+
+ if (unlikely(ret < 0)) {
+ /* nop */
+ } else if (unlikely(wait_for_completion_interruptible(&done))) {
+ ret = -EINTR;
+ usb_ep_dequeue(ep->ep, req);
+ } else {
+ ret = ep->status;
+ if (read && ret > 0 &&
+ unlikely(copy_to_user(buf, data, ret)))
+ ret = -EFAULT;
+ }
+ }
+
+ mutex_unlock(&epfile->mutex);
+error:
+ kfree(data);
+ return ret;
+}
+
+
+static ssize_t
+ffs_epfile_write(struct file *file, const char __user *buf, size_t len,
+ loff_t *ptr)
+{
+ ENTER();
+
+ return ffs_epfile_io(file, (char __user *)buf, len, 0);
+}
+
+static ssize_t
+ffs_epfile_read(struct file *file, char __user *buf, size_t len, loff_t *ptr)
+{
+ ENTER();
+
+ return ffs_epfile_io(file, buf, len, 1);
+}
+
+static int
+ffs_epfile_open(struct inode *inode, struct file *file)
+{
+ struct ffs_epfile *epfile = inode->i_private;
+
+ ENTER();
+
+ if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))
+ return -ENODEV;
+
+ file->private_data = epfile;
+ ffs_data_opened(epfile->ffs);
+
+ return 0;
+}
+
+static int
+ffs_epfile_release(struct inode *inode, struct file *file)
+{
+ struct ffs_epfile *epfile = inode->i_private;
+
+ ENTER();
+
+ ffs_data_closed(epfile->ffs);
+
+ return 0;
+}
+
+
+static long ffs_epfile_ioctl(struct file *file, unsigned code,
+ unsigned long value)
+{
+ struct ffs_epfile *epfile = file->private_data;
+ int ret;
+
+ ENTER();
+
+ if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))
+ return -ENODEV;
+
+ spin_lock_irq(&epfile->ffs->eps_lock);
+ if (likely(epfile->ep)) {
+ switch (code) {
+ case FUNCTIONFS_FIFO_STATUS:
+ ret = usb_ep_fifo_status(epfile->ep->ep);
+ break;
+ case FUNCTIONFS_FIFO_FLUSH:
+ usb_ep_fifo_flush(epfile->ep->ep);
+ ret = 0;
+ break;
+ case FUNCTIONFS_CLEAR_HALT:
+ ret = usb_ep_clear_halt(epfile->ep->ep);
+ break;
+ case FUNCTIONFS_ENDPOINT_REVMAP:
+ ret = epfile->ep->num;
+ break;
+ default:
+ ret = -ENOTTY;
+ }
+ } else {
+ ret = -ENODEV;
+ }
+ spin_unlock_irq(&epfile->ffs->eps_lock);
+
+ return ret;
+}
+
+
+static const struct file_operations ffs_epfile_operations = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+
+ .open = ffs_epfile_open,
+ .write = ffs_epfile_write,
+ .read = ffs_epfile_read,
+ .release = ffs_epfile_release,
+ .unlocked_ioctl = ffs_epfile_ioctl,
+};
+
+
+
+/* File system and super block operations ***********************************/
+
+/*
+ * Mounting the filesystem creates a controller file, used first for
+ * function configuration then later for event monitoring.
+ */
+
+
+static struct inode *__must_check
+ffs_sb_make_inode(struct super_block *sb, void *data,
+ const struct file_operations *fops,
+ const struct inode_operations *iops,
+ struct ffs_file_perms *perms)
+{
+ struct inode *inode;
+
+ ENTER();
+
+ inode = new_inode(sb);
+
+ if (likely(inode)) {
+ struct timespec current_time = CURRENT_TIME;
+
+ inode->i_mode = perms->mode;
+ inode->i_uid = perms->uid;
+ inode->i_gid = perms->gid;
+ inode->i_atime = current_time;
+ inode->i_mtime = current_time;
+ inode->i_ctime = current_time;
+ inode->i_private = data;
+ if (fops)
+ inode->i_fop = fops;
+ if (iops)
+ inode->i_op = iops;
+ }
+
+ return inode;
+}
+
+
+/* Create "regular" file */
+
+static struct inode *ffs_sb_create_file(struct super_block *sb,
+ const char *name, void *data,
+ const struct file_operations *fops,
+ struct dentry **dentry_p)
+{
+ struct ffs_data *ffs = sb->s_fs_info;
+ struct dentry *dentry;
+ struct inode *inode;
+
+ ENTER();
+
+ dentry = d_alloc_name(sb->s_root, name);
+ if (unlikely(!dentry))
+ return NULL;
+
+ inode = ffs_sb_make_inode(sb, data, fops, NULL, &ffs->file_perms);
+ if (unlikely(!inode)) {
+ dput(dentry);
+ return NULL;
+ }
+
+ d_add(dentry, inode);
+ if (dentry_p)
+ *dentry_p = dentry;
+
+ return inode;
+}
+
+
+/* Super block */
+
+static const struct super_operations ffs_sb_operations = {
+ .statfs = simple_statfs,
+ .drop_inode = generic_delete_inode,
+};
+
+struct ffs_sb_fill_data {
+ struct ffs_file_perms perms;
+ umode_t root_mode;
+ const char *dev_name;
+};
+
+static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
+{
+ struct ffs_sb_fill_data *data = _data;
+ struct inode *inode;
+ struct dentry *d;
+ struct ffs_data *ffs;
+
+ ENTER();
+
+ /* Initialize data */
+ ffs = ffs_data_new();
+ if (unlikely(!ffs))
+ goto enomem0;
+
+ ffs->sb = sb;
+ ffs->dev_name = data->dev_name;
+ ffs->file_perms = data->perms;
+
+ sb->s_fs_info = ffs;
+ sb->s_blocksize = PAGE_CACHE_SIZE;
+ sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+ sb->s_magic = FUNCTIONFS_MAGIC;
+ sb->s_op = &ffs_sb_operations;
+ sb->s_time_gran = 1;
+
+ /* Root inode */
+ data->perms.mode = data->root_mode;
+ inode = ffs_sb_make_inode(sb, NULL,
+ &simple_dir_operations,
+ &simple_dir_inode_operations,
+ &data->perms);
+ if (unlikely(!inode))
+ goto enomem1;
+ d = d_alloc_root(inode);
+ if (unlikely(!d))
+ goto enomem2;
+ sb->s_root = d;
+
+ /* EP0 file */
+ if (unlikely(!ffs_sb_create_file(sb, "ep0", ffs,
+ &ffs_ep0_operations, NULL)))
+ goto enomem3;
+
+ return 0;
+
+enomem3:
+ dput(d);
+enomem2:
+ iput(inode);
+enomem1:
+ ffs_data_put(ffs);
+enomem0:
+ return -ENOMEM;
+}
+
+
+static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
+{
+ ENTER();
+
+ if (!opts || !*opts)
+ return 0;
+
+ for (;;) {
+ char *end, *eq, *comma;
+ unsigned long value;
+
+ /* Option limit */
+ comma = strchr(opts, ',');
+ if (comma)
+ *comma = 0;
+
+ /* Value limit */
+ eq = strchr(opts, '=');
+ if (unlikely(!eq)) {
+ FERR("'=' missing in %s", opts);
+ return -EINVAL;
+ }
+ *eq = 0;
+
+ /* Parse value */
+ value = simple_strtoul(eq + 1, &end, 0);
+ if (unlikely(*end != ',' && *end != 0)) {
+ FERR("%s: invalid value: %s", opts, eq + 1);
+ return -EINVAL;
+ }
+
+ /* Interpret option */
+ switch (eq - opts) {
+ case 5:
+ if (!memcmp(opts, "rmode", 5))
+ data->root_mode = (value & 0555) | S_IFDIR;
+ else if (!memcmp(opts, "fmode", 5))
+ data->perms.mode = (value & 0666) | S_IFREG;
+ else
+ goto invalid;
+ break;
+
+ case 4:
+ if (!memcmp(opts, "mode", 4)) {
+ data->root_mode = (value & 0555) | S_IFDIR;
+ data->perms.mode = (value & 0666) | S_IFREG;
+ } else {
+ goto invalid;
+ }
+ break;
+
+ case 3:
+ if (!memcmp(opts, "uid", 3))
+ data->perms.uid = value;
+ else if (!memcmp(opts, "gid", 3))
+ data->perms.gid = value;
+ else
+ goto invalid;
+ break;
+
+ default:
+invalid:
+ FERR("%s: invalid option", opts);
+ return -EINVAL;
+ }
+
+ /* Next iteration */
+ if (!comma)
+ break;
+ opts = comma + 1;
+ }
+
+ return 0;
+}
+
+
+/* "mount -t functionfs dev_name /dev/function" ends up here */
+
+static int
+ffs_fs_get_sb(struct file_system_type *t, int flags,
+ const char *dev_name, void *opts, struct vfsmount *mnt)
+{
+ struct ffs_sb_fill_data data = {
+ .perms = {
+ .mode = S_IFREG | 0600,
+ .uid = 0,
+ .gid = 0
+ },
+ .root_mode = S_IFDIR | 0500,
+ };
+ int ret;
+
+ ENTER();
+
+ ret = functionfs_check_dev_callback(dev_name);
+ if (unlikely(ret < 0))
+ return ret;
+
+ ret = ffs_fs_parse_opts(&data, opts);
+ if (unlikely(ret < 0))
+ return ret;
+
+ data.dev_name = dev_name;
+ return get_sb_single(t, flags, &data, ffs_sb_fill, mnt);
+}
+
+static void
+ffs_fs_kill_sb(struct super_block *sb)
+{
+ void *ptr;
+
+ ENTER();
+
+ kill_litter_super(sb);
+ ptr = xchg(&sb->s_fs_info, NULL);
+ if (ptr)
+ ffs_data_put(ptr);
+}
+
+static struct file_system_type ffs_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "functionfs",
+ .get_sb = ffs_fs_get_sb,
+ .kill_sb = ffs_fs_kill_sb,
+};
+
+
+
+/* Driver's main init/cleanup functions *************************************/
+
+
+static int functionfs_init(void)
+{
+ int ret;
+
+ ENTER();
+
+ ret = register_filesystem(&ffs_fs_type);
+ if (likely(!ret))
+ FINFO("file system registered");
+ else
+ FERR("failed registering file system (%d)", ret);
+
+ return ret;
+}
+
+static void functionfs_cleanup(void)
+{
+ ENTER();
+
+ FINFO("unloading");
+ unregister_filesystem(&ffs_fs_type);
+}
+
+
+
+/* ffs_data and ffs_function construction and destruction code **************/
+
+static void ffs_data_clear(struct ffs_data *ffs);
+static void ffs_data_reset(struct ffs_data *ffs);
+
+
+static void ffs_data_get(struct ffs_data *ffs)
+{
+ ENTER();
+
+ atomic_inc(&ffs->ref);
+}
+
+static void ffs_data_opened(struct ffs_data *ffs)
+{
+ ENTER();
+
+ atomic_inc(&ffs->ref);
+ atomic_inc(&ffs->opened);
+}
+
+static void ffs_data_put(struct ffs_data *ffs)
+{
+ ENTER();
+
+ if (unlikely(atomic_dec_and_test(&ffs->ref))) {
+ FINFO("%s(): freeing", __func__);
+ ffs_data_clear(ffs);
+ BUG_ON(mutex_is_locked(&ffs->mutex) ||
+ spin_is_locked(&ffs->ev.waitq.lock) ||
+ waitqueue_active(&ffs->ev.waitq) ||
+ waitqueue_active(&ffs->ep0req_completion.wait));
+ kfree(ffs);
+ }
+}
+
+
+
+static void ffs_data_closed(struct ffs_data *ffs)
+{
+ ENTER();
+
+ if (atomic_dec_and_test(&ffs->opened)) {
+ ffs->state = FFS_CLOSING;
+ ffs_data_reset(ffs);
+ }
+
+ ffs_data_put(ffs);
+}
+
+
+static struct ffs_data *ffs_data_new(void)
+{
+ struct ffs_data *ffs = kzalloc(sizeof *ffs, GFP_KERNEL);
+ if (unlikely(!ffs))
+ return 0;
+
+ ENTER();
+
+ atomic_set(&ffs->ref, 1);
+ atomic_set(&ffs->opened, 0);
+ ffs->state = FFS_READ_DESCRIPTORS;
+ mutex_init(&ffs->mutex);
+ spin_lock_init(&ffs->eps_lock);
+ init_waitqueue_head(&ffs->ev.waitq);
+ init_completion(&ffs->ep0req_completion);
+
+ /* XXX REVISIT need to update it in some places, or do we? */
+ ffs->ev.can_stall = 1;
+
+ return ffs;
+}
+
+
+static void ffs_data_clear(struct ffs_data *ffs)
+{
+ ENTER();
+
+ if (test_and_clear_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags))
+ functionfs_closed_callback(ffs);
+
+ BUG_ON(ffs->gadget);
+
+ if (ffs->epfiles)
+ ffs_epfiles_destroy(ffs->epfiles, ffs->eps_count);
+
+ kfree(ffs->raw_descs);
+ kfree(ffs->raw_strings);
+ kfree(ffs->stringtabs);
+}
+
+
+static void ffs_data_reset(struct ffs_data *ffs)
+{
+ ENTER();
+
+ ffs_data_clear(ffs);
+
+ ffs->epfiles = NULL;
+ ffs->raw_descs = NULL;
+ ffs->raw_strings = NULL;
+ ffs->stringtabs = NULL;
+
+ ffs->raw_descs_length = 0;
+ ffs->raw_fs_descs_length = 0;
+ ffs->fs_descs_count = 0;
+ ffs->hs_descs_count = 0;
+
+ ffs->strings_count = 0;
+ ffs->interfaces_count = 0;
+ ffs->eps_count = 0;
+
+ ffs->ev.count = 0;
+
+ ffs->state = FFS_READ_DESCRIPTORS;
+ ffs->setup_state = FFS_NO_SETUP;
+ ffs->flags = 0;
+}
+
+
+static int functionfs_bind(struct ffs_data *ffs, struct usb_composite_dev *cdev)
+{
+ unsigned i, count;
+
+ ENTER();
+
+ if (WARN_ON(ffs->state != FFS_ACTIVE
+ || test_and_set_bit(FFS_FL_BOUND, &ffs->flags)))
+ return -EBADFD;
+
+ ffs_data_get(ffs);
+
+ ffs->ep0req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);
+ if (unlikely(!ffs->ep0req))
+ return -ENOMEM;
+ ffs->ep0req->complete = ffs_ep0_complete;
+ ffs->ep0req->context = ffs;
+
+ /* Get strings identifiers */
+ for (count = ffs->strings_count, i = 0; i < count; ++i) {
+ struct usb_gadget_strings **lang;
+
+ int id = usb_string_id(cdev);
+ if (unlikely(id < 0)) {
+ usb_ep_free_request(cdev->gadget->ep0, ffs->ep0req);
+ ffs->ep0req = NULL;
+ return id;
+ }
+
+ lang = ffs->stringtabs;
+ do {
+ (*lang)->strings[i].id = id;
+ ++lang;
+ } while (*lang);
+ }
+
+ ffs->gadget = cdev->gadget;
+ return 0;
+}
+
+
+static void functionfs_unbind(struct ffs_data *ffs)
+{
+ ENTER();
+
+ if (!WARN_ON(!ffs->gadget)) {
+ usb_ep_free_request(ffs->gadget->ep0, ffs->ep0req);
+ ffs->ep0req = NULL;
+ ffs->gadget = NULL;
+ ffs_data_put(ffs);
+ }
+}
+
+
+static int ffs_epfiles_create(struct ffs_data *ffs)
+{
+ struct ffs_epfile *epfile, *epfiles;
+ unsigned i, count;
+
+ ENTER();
+
+ count = ffs->eps_count;
+ epfiles = kzalloc(count * sizeof *epfiles, GFP_KERNEL);
+ if (!epfiles)
+ return -ENOMEM;
+
+ epfile = epfiles;
+ for (i = 1; i <= count; ++i, ++epfile) {
+ epfile->ffs = ffs;
+ mutex_init(&epfile->mutex);
+ init_waitqueue_head(&epfile->wait);
+ sprintf(epfiles->name, "ep%u", i);
+ if (!unlikely(ffs_sb_create_file(ffs->sb, epfiles->name, epfile,
+ &ffs_epfile_operations,
+ &epfile->dentry))) {
+ ffs_epfiles_destroy(epfiles, i - 1);
+ return -ENOMEM;
+ }
+ }
+
+ ffs->epfiles = epfiles;
+ return 0;
+}
+
+
+static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count)
+{
+ struct ffs_epfile *epfile = epfiles;
+
+ ENTER();
+
+ for (; count; --count, ++epfile) {
+ BUG_ON(mutex_is_locked(&epfile->mutex) ||
+ waitqueue_active(&epfile->wait));
+ if (epfile->dentry) {
+ d_delete(epfile->dentry);
+ dput(epfile->dentry);
+ epfile->dentry = NULL;
+ }
+ }
+
+ kfree(epfiles);
+}
+
+
+static int functionfs_add(struct usb_composite_dev *cdev,
+ struct usb_configuration *c,
+ struct ffs_data *ffs)
+{
+ struct ffs_function *func;
+ int ret;
+
+ ENTER();
+
+ func = kzalloc(sizeof *func, GFP_KERNEL);
+ if (unlikely(!func))
+ return -ENOMEM;
+
+ func->function.name = "Function FS Gadget";
+ func->function.strings = ffs->stringtabs;
+
+ func->function.bind = ffs_func_bind;
+ func->function.unbind = ffs_func_unbind;
+ func->function.set_alt = ffs_func_set_alt;
+ /*func->function.get_alt = ffs_func_get_alt;*/
+ func->function.disable = ffs_func_disable;
+ func->function.setup = ffs_func_setup;
+ func->function.suspend = ffs_func_suspend;
+ func->function.resume = ffs_func_resume;
+
+ func->conf = c;
+ func->gadget = cdev->gadget;
+ func->ffs = ffs;
+ ffs_data_get(ffs);
+
+ ret = usb_add_function(c, &func->function);
+ if (unlikely(ret))
+ ffs_func_free(func);
+
+ return ret;
+}
+
+static void ffs_func_free(struct ffs_function *func)
+{
+ ENTER();
+
+ ffs_data_put(func->ffs);
+
+ kfree(func->eps);
+ /* eps and interfaces_nums are allocated in the same chunk so
+ * only one free is required. Descriptors are also allocated
+ * in the same chunk. */
+
+ kfree(func);
+}
+
+
+static void ffs_func_eps_disable(struct ffs_function *func)
+{
+ struct ffs_ep *ep = func->eps;
+ struct ffs_epfile *epfile = func->ffs->epfiles;
+ unsigned count = func->ffs->eps_count;
+ unsigned long flags;
+
+ spin_lock_irqsave(&func->ffs->eps_lock, flags);
+ do {
+ /* pending requests get nuked */
+ if (likely(ep->ep))
+ usb_ep_disable(ep->ep);
+ epfile->ep = NULL;
+
+ ++ep;
+ ++epfile;
+ } while (--count);
+ spin_unlock_irqrestore(&func->ffs->eps_lock, flags);
+}
+
+static int ffs_func_eps_enable(struct ffs_function *func)
+{
+ struct ffs_data *ffs = func->ffs;
+ struct ffs_ep *ep = func->eps;
+ struct ffs_epfile *epfile = ffs->epfiles;
+ unsigned count = ffs->eps_count;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&func->ffs->eps_lock, flags);
+ do {
+ struct usb_endpoint_descriptor *ds;
+ ds = ep->descs[ep->descs[1] ? 1 : 0];
+
+ ep->ep->driver_data = ep;
+ ret = usb_ep_enable(ep->ep, ds);
+ if (likely(!ret)) {
+ epfile->ep = ep;
+ epfile->in = usb_endpoint_dir_in(ds);
+ epfile->isoc = usb_endpoint_xfer_isoc(ds);
+ } else {
+ break;
+ }
+
+ wake_up(&epfile->wait);
+
+ ++ep;
+ ++epfile;
+ } while (--count);
+ spin_unlock_irqrestore(&func->ffs->eps_lock, flags);
+
+ return ret;
+}
+
+
+/* Parsing and building descriptors and strings *****************************/
+
+
+/* This validates if data pointed by data is a valid USB descriptor as
+ * well as record how many interfaces, endpoints and strings are
+ * required by given configuration. Returns address afther the
+ * descriptor or NULL if data is invalid. */
+
+enum ffs_entity_type {
+ FFS_DESCRIPTOR, FFS_INTERFACE, FFS_STRING, FFS_ENDPOINT
+};
+
+typedef int (*ffs_entity_callback)(enum ffs_entity_type entity,
+ u8 *valuep,
+ struct usb_descriptor_header *desc,
+ void *priv);
+
+static int __must_check ffs_do_desc(char *data, unsigned len,
+ ffs_entity_callback entity, void *priv)
+{
+ struct usb_descriptor_header *_ds = (void *)data;
+ u8 length;
+ int ret;
+
+ ENTER();
+
+ /* At least two bytes are required: length and type */
+ if (len < 2) {
+ FVDBG("descriptor too short");
+ return -EINVAL;
+ }
+
+ /* If we have at least as many bytes as the descriptor takes? */
+ length = _ds->bLength;
+ if (len < length) {
+ FVDBG("descriptor longer then available data");
+ return -EINVAL;
+ }
+
+#define __entity_check_INTERFACE(val) 1
+#define __entity_check_STRING(val) (val)
+#define __entity_check_ENDPOINT(val) ((val) & USB_ENDPOINT_NUMBER_MASK)
+#define __entity(type, val) do { \
+ FVDBG("entity " #type "(%02x)", (val)); \
+ if (unlikely(!__entity_check_ ##type(val))) { \
+ FVDBG("invalid entity's value"); \
+ return -EINVAL; \
+ } \
+ ret = entity(FFS_ ##type, &val, _ds, priv); \
+ if (unlikely(ret < 0)) { \
+ FDBG("entity " #type "(%02x); ret = %d", \
+ (val), ret); \
+ return ret; \
+ } \
+ } while (0)
+
+ /* Parse descriptor depending on type. */
+ switch (_ds->bDescriptorType) {
+ case USB_DT_DEVICE:
+ case USB_DT_CONFIG:
+ case USB_DT_STRING:
+ case USB_DT_DEVICE_QUALIFIER:
+ /* function can't have any of those */
+ FVDBG("descriptor reserved for gadget: %d", _ds->bDescriptorType);
+ return -EINVAL;
+
+ case USB_DT_INTERFACE: {
+ struct usb_interface_descriptor *ds = (void *)_ds;
+ FVDBG("interface descriptor");
+ if (length != sizeof *ds)
+ goto inv_length;
+
+ __entity(INTERFACE, ds->bInterfaceNumber);
+ if (ds->iInterface)
+ __entity(STRING, ds->iInterface);
+ }
+ break;
+
+ case USB_DT_ENDPOINT: {
+ struct usb_endpoint_descriptor *ds = (void *)_ds;
+ FVDBG("endpoint descriptor");
+ if (length != USB_DT_ENDPOINT_SIZE &&
+ length != USB_DT_ENDPOINT_AUDIO_SIZE)
+ goto inv_length;
+ __entity(ENDPOINT, ds->bEndpointAddress);
+ }
+ break;
+
+ case USB_DT_OTG:
+ if (length != sizeof(struct usb_otg_descriptor))
+ goto inv_length;
+ break;
+
+ case USB_DT_INTERFACE_ASSOCIATION: {
+ struct usb_interface_assoc_descriptor *ds = (void *)_ds;
+ FVDBG("interface association descriptor");
+ if (length != sizeof *ds)
+ goto inv_length;
+ if (ds->iFunction)
+ __entity(STRING, ds->iFunction);
+ }
+ break;
+
+ case USB_DT_OTHER_SPEED_CONFIG:
+ case USB_DT_INTERFACE_POWER:
+ case USB_DT_DEBUG:
+ case USB_DT_SECURITY:
+ case USB_DT_CS_RADIO_CONTROL:
+ /* TODO */
+ FVDBG("unimplemented descriptor: %d", _ds->bDescriptorType);
+ return -EINVAL;
+
+ default:
+ /* We should never be here */
+ FVDBG("unknown descriptor: %d", _ds->bDescriptorType);
+ return -EINVAL;
+
+ inv_length:
+ FVDBG("invalid length: %d (descriptor %d)",
+ _ds->bLength, _ds->bDescriptorType);
+ return -EINVAL;
+ }
+
+#undef __entity
+#undef __entity_check_DESCRIPTOR
+#undef __entity_check_INTERFACE
+#undef __entity_check_STRING
+#undef __entity_check_ENDPOINT
+
+ return length;
+}
+
+
+static int __must_check ffs_do_descs(unsigned count, char *data, unsigned len,
+ ffs_entity_callback entity, void *priv)
+{
+ const unsigned _len = len;
+ unsigned long num = 0;
+
+ ENTER();
+
+ for (;;) {
+ int ret;
+
+ if (num == count)
+ data = NULL;
+
+ /* Record "descriptor" entitny */
+ ret = entity(FFS_DESCRIPTOR, (u8 *)num, (void *)data, priv);
+ if (unlikely(ret < 0)) {
+ FDBG("entity DESCRIPTOR(%02lx); ret = %d", num, ret);
+ return ret;
+ }
+
+ if (!data)
+ return _len - len;
+
+ ret = ffs_do_desc(data, len, entity, priv);
+ if (unlikely(ret < 0)) {
+ FDBG("%s returns %d", __func__, ret);
+ return ret;
+ }
+
+ len -= ret;
+ data += ret;
+ ++num;
+ }
+}
+
+
+static int __ffs_data_do_entity(enum ffs_entity_type type,
+ u8 *valuep, struct usb_descriptor_header *desc,
+ void *priv)
+{
+ struct ffs_data *ffs = priv;
+
+ ENTER();
+
+ switch (type) {
+ case FFS_DESCRIPTOR:
+ break;
+
+ case FFS_INTERFACE:
+ /* Interfaces are indexed from zero so if we
+ * encountered interface "n" then there are at least
+ * "n+1" interfaces. */
+ if (*valuep >= ffs->interfaces_count)
+ ffs->interfaces_count = *valuep + 1;
+ break;
+
+ case FFS_STRING:
+ /* Strings are indexed from 1 (0 is magic ;) reserved
+ * for languages list or some such) */
+ if (*valuep > ffs->strings_count)
+ ffs->strings_count = *valuep;
+ break;
+
+ case FFS_ENDPOINT:
+ /* Endpoints are indexed from 1 as well. */
+ if ((*valuep & USB_ENDPOINT_NUMBER_MASK) > ffs->eps_count)
+ ffs->eps_count = (*valuep & USB_ENDPOINT_NUMBER_MASK);
+ break;
+ }
+
+ return 0;
+}
+
+
+static int __ffs_data_got_descs(struct ffs_data *ffs,
+ char *const _data, size_t len)
+{
+ unsigned fs_count, hs_count;
+ int fs_len, ret = -EINVAL;
+ char *data = _data;
+
+ ENTER();
+
+ if (unlikely(get_unaligned_le32(data) != FUNCTIONFS_DESCRIPTORS_MAGIC ||
+ get_unaligned_le32(data + 4) != len))
+ goto error;
+ fs_count = get_unaligned_le32(data + 8);
+ hs_count = get_unaligned_le32(data + 12);
+
+ if (!fs_count && !hs_count)
+ goto einval;
+
+ data += 16;
+ len -= 16;
+
+ if (likely(fs_count)) {
+ fs_len = ffs_do_descs(fs_count, data, len,
+ __ffs_data_do_entity, ffs);
+ if (unlikely(fs_len < 0)) {
+ ret = fs_len;
+ goto error;
+ }
+
+ data += fs_len;
+ len -= fs_len;
+ } else {
+ fs_len = 0;
+ }
+
+ if (likely(hs_count)) {
+ ret = ffs_do_descs(hs_count, data, len,
+ __ffs_data_do_entity, ffs);
+ if (unlikely(ret < 0))
+ goto error;
+ } else {
+ ret = 0;
+ }
+
+ if (unlikely(len != ret))
+ goto einval;
+
+ ffs->raw_fs_descs_length = fs_len;
+ ffs->raw_descs_length = fs_len + ret;
+ ffs->raw_descs = _data;
+ ffs->fs_descs_count = fs_count;
+ ffs->hs_descs_count = hs_count;
+
+ return 0;
+
+einval:
+ ret = -EINVAL;
+error:
+ kfree(_data);
+ return ret;
+}
+
+
+
+static int __ffs_data_got_strings(struct ffs_data *ffs,
+ char *const _data, size_t len)
+{
+ u32 str_count, needed_count, lang_count;
+ struct usb_gadget_strings **stringtabs, *t;
+ struct usb_string *strings, *s;
+ const char *data = _data;
+
+ ENTER();
+
+ if (unlikely(get_unaligned_le32(data) != FUNCTIONFS_STRINGS_MAGIC ||
+ get_unaligned_le32(data + 4) != len))
+ goto error;
+ str_count = get_unaligned_le32(data + 8);
+ lang_count = get_unaligned_le32(data + 12);
+
+ /* if one is zero the other must be zero */
+ if (unlikely(!str_count != !lang_count))
+ goto error;
+
+ /* Do we have at least as many strings as descriptors need? */
+ needed_count = ffs->strings_count;
+ if (unlikely(str_count < needed_count))
+ goto error;
+
+ /* If we don't need any strings just return and free all
+ * memory */
+ if (!needed_count) {
+ kfree(_data);
+ return 0;
+ }
+
+ /* Allocate */
+ {
+ /* Allocate everything in one chunk so there's less
+ * maintanance. */
+ struct {
+ struct usb_gadget_strings *stringtabs[lang_count + 1];
+ struct usb_gadget_strings stringtab[lang_count];
+ struct usb_string strings[lang_count*(needed_count+1)];
+ } *d;
+ unsigned i = 0;
+
+ d = kmalloc(sizeof *d, GFP_KERNEL);
+ if (unlikely(!d)) {
+ kfree(_data);
+ return -ENOMEM;
+ }
+
+ stringtabs = d->stringtabs;
+ t = d->stringtab;
+ i = lang_count;
+ do {
+ *stringtabs++ = t++;
+ } while (--i);
+ *stringtabs = NULL;
+
+ stringtabs = d->stringtabs;
+ t = d->stringtab;
+ s = d->strings;
+ strings = s;
+ }
+
+ /* For each language */
+ data += 16;
+ len -= 16;
+
+ do { /* lang_count > 0 so we can use do-while */
+ unsigned needed = needed_count;
+
+ if (unlikely(len < 3))
+ goto error_free;
+ t->language = get_unaligned_le16(data);
+ t->strings = s;
+ ++t;
+
+ data += 2;
+ len -= 2;
+
+ /* For each string */
+ do { /* str_count > 0 so we can use do-while */
+ size_t length = strnlen(data, len);
+
+ if (unlikely(length == len))
+ goto error_free;
+
+ /* user may provide more strings then we need,
+ * if that's the case we simply ingore the
+ * rest */
+ if (likely(needed)) {
+ /* s->id will be set while adding
+ * function to configuration so for
+ * now just leave garbage here. */
+ s->s = data;
+ --needed;
+ ++s;
+ }
+
+ data += length + 1;
+ len -= length + 1;
+ } while (--str_count);
+
+ s->id = 0; /* terminator */
+ s->s = NULL;
+ ++s;
+
+ } while (--lang_count);
+
+ /* Some garbage left? */
+ if (unlikely(len))
+ goto error_free;
+
+ /* Done! */
+ ffs->stringtabs = stringtabs;
+ ffs->raw_strings = _data;
+
+ return 0;
+
+error_free:
+ kfree(stringtabs);
+error:
+ kfree(_data);
+ return -EINVAL;
+}
+
+
+
+
+/* Events handling and management *******************************************/
+
+static void __ffs_event_add(struct ffs_data *ffs,
+ enum usb_functionfs_event_type type)
+{
+ enum usb_functionfs_event_type rem_type1, rem_type2 = type;
+ int neg = 0;
+
+ /* Abort any unhandled setup */
+ /* We do not need to worry about some cmpxchg() changing value
+ * of ffs->setup_state without holding the lock because when
+ * state is FFS_SETUP_PENDING cmpxchg() in several places in
+ * the source does nothing. */
+ if (ffs->setup_state == FFS_SETUP_PENDING)
+ ffs->setup_state = FFS_SETUP_CANCELED;
+
+ switch (type) {
+ case FUNCTIONFS_RESUME:
+ rem_type2 = FUNCTIONFS_SUSPEND;
+ /* FALL THGOUTH */
+ case FUNCTIONFS_SUSPEND:
+ case FUNCTIONFS_SETUP:
+ rem_type1 = type;
+ /* discard all similar events */
+ break;
+
+ case FUNCTIONFS_BIND:
+ case FUNCTIONFS_UNBIND:
+ case FUNCTIONFS_DISABLE:
+ case FUNCTIONFS_ENABLE:
+ /* discard everything other then power management. */
+ rem_type1 = FUNCTIONFS_SUSPEND;
+ rem_type2 = FUNCTIONFS_RESUME;
+ neg = 1;
+ break;
+
+ default:
+ BUG();
+ }
+
+ {
+ u8 *ev = ffs->ev.types, *out = ev;
+ unsigned n = ffs->ev.count;
+ for (; n; --n, ++ev)
+ if ((*ev == rem_type1 || *ev == rem_type2) == neg)
+ *out++ = *ev;
+ else
+ FVDBG("purging event %d", *ev);
+ ffs->ev.count = out - ffs->ev.types;
+ }
+
+ FVDBG("adding event %d", type);
+ ffs->ev.types[ffs->ev.count++] = type;
+ wake_up_locked(&ffs->ev.waitq);
+}
+
+static void ffs_event_add(struct ffs_data *ffs,
+ enum usb_functionfs_event_type type)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&ffs->ev.waitq.lock, flags);
+ __ffs_event_add(ffs, type);
+ spin_unlock_irqrestore(&ffs->ev.waitq.lock, flags);
+}
+
+
+/* Bind/unbind USB function hooks *******************************************/
+
+static int __ffs_func_bind_do_descs(enum ffs_entity_type type, u8 *valuep,
+ struct usb_descriptor_header *desc,
+ void *priv)
+{
+ struct usb_endpoint_descriptor *ds = (void *)desc;
+ struct ffs_function *func = priv;
+ struct ffs_ep *ffs_ep;
+
+ /* If hs_descriptors is not NULL then we are reading hs
+ * descriptors now */
+ const int isHS = func->function.hs_descriptors != NULL;
+ unsigned idx;
+
+ if (type != FFS_DESCRIPTOR)
+ return 0;
+
+ if (isHS)
+ func->function.hs_descriptors[(long)valuep] = desc;
+ else
+ func->function.descriptors[(long)valuep] = desc;
+
+ if (!desc || desc->bDescriptorType != USB_DT_ENDPOINT)
+ return 0;
+
+ idx = (ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) - 1;
+ ffs_ep = func->eps + idx;
+
+ if (unlikely(ffs_ep->descs[isHS])) {
+ FVDBG("two %sspeed descriptors for EP %d",
+ isHS ? "high" : "full",
+ ds->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ return -EINVAL;
+ }
+ ffs_ep->descs[isHS] = ds;
+
+ ffs_dump_mem(": Original ep desc", ds, ds->bLength);
+ if (ffs_ep->ep) {
+ ds->bEndpointAddress = ffs_ep->descs[0]->bEndpointAddress;
+ if (!ds->wMaxPacketSize)
+ ds->wMaxPacketSize = ffs_ep->descs[0]->wMaxPacketSize;
+ } else {
+ struct usb_request *req;
+ struct usb_ep *ep;
+
+ FVDBG("autoconfig");
+ ep = usb_ep_autoconfig(func->gadget, ds);
+ if (unlikely(!ep))
+ return -ENOTSUPP;
+ ep->driver_data = func->eps + idx;;
+
+ req = usb_ep_alloc_request(ep, GFP_KERNEL);
+ if (unlikely(!req))
+ return -ENOMEM;
+
+ ffs_ep->ep = ep;
+ ffs_ep->req = req;
+ func->eps_revmap[ds->bEndpointAddress &
+ USB_ENDPOINT_NUMBER_MASK] = idx + 1;
+ }
+ ffs_dump_mem(": Rewritten ep desc", ds, ds->bLength);
+
+ return 0;
+}
+
+
+static int __ffs_func_bind_do_nums(enum ffs_entity_type type, u8 *valuep,
+ struct usb_descriptor_header *desc,
+ void *priv)
+{
+ struct ffs_function *func = priv;
+ unsigned idx;
+ u8 newValue;
+
+ switch (type) {
+ default:
+ case FFS_DESCRIPTOR:
+ /* Handled in previous pass by __ffs_func_bind_do_descs() */
+ return 0;
+
+ case FFS_INTERFACE:
+ idx = *valuep;
+ if (func->interfaces_nums[idx] < 0) {
+ int id = usb_interface_id(func->conf, &func->function);
+ if (unlikely(id < 0))
+ return id;
+ func->interfaces_nums[idx] = id;
+ }
+ newValue = func->interfaces_nums[idx];
+ break;
+
+ case FFS_STRING:
+ /* String' IDs are allocated when fsf_data is bound to cdev */
+ newValue = func->ffs->stringtabs[0]->strings[*valuep - 1].id;
+ break;
+
+ case FFS_ENDPOINT:
+ /* USB_DT_ENDPOINT are handled in
+ * __ffs_func_bind_do_descs(). */
+ if (desc->bDescriptorType == USB_DT_ENDPOINT)
+ return 0;
+
+ idx = (*valuep & USB_ENDPOINT_NUMBER_MASK) - 1;
+ if (unlikely(!func->eps[idx].ep))
+ return -EINVAL;
+
+ {
+ struct usb_endpoint_descriptor **descs;
+ descs = func->eps[idx].descs;
+ newValue = descs[descs[0] ? 0 : 1]->bEndpointAddress;
+ }
+ break;
+ }
+
+ FVDBG("%02x -> %02x", *valuep, newValue);
+ *valuep = newValue;
+ return 0;
+}
+
+static int ffs_func_bind(struct usb_configuration *c,
+ struct usb_function *f)
+{
+ struct ffs_function *func = ffs_func_from_usb(f);
+ struct ffs_data *ffs = func->ffs;
+
+ const int full = !!func->ffs->fs_descs_count;
+ const int high = gadget_is_dualspeed(func->gadget) &&
+ func->ffs->hs_descs_count;
+
+ int ret;
+
+ /* Make it a single chunk, less management later on */
+ struct {
+ struct ffs_ep eps[ffs->eps_count];
+ struct usb_descriptor_header
+ *fs_descs[full ? ffs->fs_descs_count + 1 : 0];
+ struct usb_descriptor_header
+ *hs_descs[high ? ffs->hs_descs_count + 1 : 0];
+ short inums[ffs->interfaces_count];
+ char raw_descs[high ? ffs->raw_descs_length
+ : ffs->raw_fs_descs_length];
+ } *data;
+
+ ENTER();
+
+ /* Only high speed but not supported by gadget? */
+ if (unlikely(!(full | high)))
+ return -ENOTSUPP;
+
+ /* Allocate */
+ data = kmalloc(sizeof *data, GFP_KERNEL);
+ if (unlikely(!data))
+ return -ENOMEM;
+
+ /* Zero */
+ memset(data->eps, 0, sizeof data->eps);
+ memcpy(data->raw_descs, ffs->raw_descs + 16, sizeof data->raw_descs);
+ memset(data->inums, 0xff, sizeof data->inums);
+ for (ret = ffs->eps_count; ret; --ret)
+ data->eps[ret].num = -1;
+
+ /* Save pointers */
+ func->eps = data->eps;
+ func->interfaces_nums = data->inums;
+
+ /* Go throught all the endpoint descriptors and allocate
+ * endpoints first, so that later we can rewrite the endpoint
+ * numbers without worying that it may be described later on. */
+ if (likely(full)) {
+ func->function.descriptors = data->fs_descs;
+ ret = ffs_do_descs(ffs->fs_descs_count,
+ data->raw_descs,
+ sizeof data->raw_descs,
+ __ffs_func_bind_do_descs, func);
+ if (unlikely(ret < 0))
+ goto error;
+ } else {
+ ret = 0;
+ }
+
+ if (likely(high)) {
+ func->function.hs_descriptors = data->hs_descs;
+ ret = ffs_do_descs(ffs->hs_descs_count,
+ data->raw_descs + ret,
+ (sizeof data->raw_descs) - ret,
+ __ffs_func_bind_do_descs, func);
+ }
+
+ /* Now handle interface numbers allocation and interface and
+ * enpoint numbers rewritting. We can do that in one go
+ * now. */
+ ret = ffs_do_descs(ffs->fs_descs_count +
+ (high ? ffs->hs_descs_count : 0),
+ data->raw_descs, sizeof data->raw_descs,
+ __ffs_func_bind_do_nums, func);
+ if (unlikely(ret < 0))
+ goto error;
+
+ /* And we're done */
+ ffs_event_add(ffs, FUNCTIONFS_BIND);
+ return 0;
+
+error:
+ /* XXX Do we need to release all claimed endpoints here? */
+ return ret;
+}
+
+
+/* Other USB function hooks *************************************************/
+
+static void ffs_func_unbind(struct usb_configuration *c,
+ struct usb_function *f)
+{
+ struct ffs_function *func = ffs_func_from_usb(f);
+ struct ffs_data *ffs = func->ffs;
+
+ ENTER();
+
+ if (ffs->func == func) {
+ ffs_func_eps_disable(func);
+ ffs->func = NULL;
+ }
+
+ ffs_event_add(ffs, FUNCTIONFS_UNBIND);
+
+ ffs_func_free(func);
+}
+
+
+static int ffs_func_set_alt(struct usb_function *f,
+ unsigned interface, unsigned alt)
+{
+ struct ffs_function *func = ffs_func_from_usb(f);
+ struct ffs_data *ffs = func->ffs;
+ int ret = 0, intf;
+
+ if (alt != (unsigned)-1) {
+ intf = ffs_func_revmap_intf(func, interface);
+ if (unlikely(intf < 0))
+ return intf;
+ }
+
+ if (ffs->func)
+ ffs_func_eps_disable(ffs->func);
+
+ if (ffs->state != FFS_ACTIVE)
+ return -ENODEV;
+
+ if (alt == (unsigned)-1) {
+ ffs->func = NULL;
+ ffs_event_add(ffs, FUNCTIONFS_DISABLE);
+ return 0;
+ }
+
+ ffs->func = func;
+ ret = ffs_func_eps_enable(func);
+ if (likely(ret >= 0))
+ ffs_event_add(ffs, FUNCTIONFS_ENABLE);
+ return ret;
+}
+
+static void ffs_func_disable(struct usb_function *f)
+{
+ ffs_func_set_alt(f, 0, (unsigned)-1);
+}
+
+static int ffs_func_setup(struct usb_function *f,
+ const struct usb_ctrlrequest *creq)
+{
+ struct ffs_function *func = ffs_func_from_usb(f);
+ struct ffs_data *ffs = func->ffs;
+ unsigned long flags;
+ int ret;
+
+ ENTER();
+
+ FVDBG("creq->bRequestType = %02x", creq->bRequestType);
+ FVDBG("creq->bRequest = %02x", creq->bRequest);
+ FVDBG("creq->wValue = %04x", le16_to_cpu(creq->wValue));
+ FVDBG("creq->wIndex = %04x", le16_to_cpu(creq->wIndex));
+ FVDBG("creq->wLength = %04x", le16_to_cpu(creq->wLength));
+
+ /* Most requests directed to interface go throught here
+ * (notable exceptions are set/get interface) so we need to
+ * handle them. All other either handled by composite or
+ * passed to usb_configuration->setup() (if one is set). No
+ * matter, we will handle requests directed to endpoint here
+ * as well (as it's straightforward) but what to do with any
+ * other request? */
+
+ if (ffs->state != FFS_ACTIVE)
+ return -ENODEV;
+
+ switch (creq->bRequestType & USB_RECIP_MASK) {
+ case USB_RECIP_INTERFACE:
+ ret = ffs_func_revmap_intf(func, le16_to_cpu(creq->wIndex));
+ if (unlikely(ret < 0))
+ return ret;
+ break;
+
+ case USB_RECIP_ENDPOINT:
+ ret = ffs_func_revmap_ep(func, le16_to_cpu(creq->wIndex));
+ if (unlikely(ret < 0))
+ return ret;
+ break;
+
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ spin_lock_irqsave(&ffs->ev.waitq.lock, flags);
+ ffs->ev.setup = *creq;
+ ffs->ev.setup.wIndex = cpu_to_le16(ret);
+ __ffs_event_add(ffs, FUNCTIONFS_SETUP);
+ spin_unlock_irqrestore(&ffs->ev.waitq.lock, flags);
+
+ return 0;
+}
+
+static void ffs_func_suspend(struct usb_function *f)
+{
+ ENTER();
+ ffs_event_add(ffs_func_from_usb(f)->ffs, FUNCTIONFS_SUSPEND);
+}
+
+static void ffs_func_resume(struct usb_function *f)
+{
+ ENTER();
+ ffs_event_add(ffs_func_from_usb(f)->ffs, FUNCTIONFS_RESUME);
+}
+
+
+
+/* Enpoint and interface numbers reverse mapping ****************************/
+
+static int ffs_func_revmap_ep(struct ffs_function *func, u8 num)
+{
+ num = func->eps_revmap[num & USB_ENDPOINT_NUMBER_MASK];
+ return num ? num : -EDOM;
+}
+
+static int ffs_func_revmap_intf(struct ffs_function *func, u8 intf)
+{
+ short *nums = func->interfaces_nums;
+ unsigned count = func->ffs->interfaces_count;
+
+ for (; count; --count, ++nums) {
+ if (*nums >= 0 && *nums == intf)
+ return nums - func->interfaces_nums;
+ }
+
+ return -EDOM;
+}
+
+
+/* Misc helper functions ****************************************************/
+
+static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
+{
+ return nonblock
+ ? likely(mutex_trylock(mutex)) ? 0 : -EAGAIN
+ : mutex_lock_interruptible(mutex);
+}
+
+
+static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+{
+ char *data;
+
+ if (unlikely(!len))
+ return NULL;
+
+ data = kmalloc(len, GFP_KERNEL);
+ if (unlikely(!data))
+ return ERR_PTR(-ENOMEM);
+
+ if (unlikely(__copy_from_user(data, buf, len))) {
+ kfree(data);
+ return ERR_PTR(-EFAULT);
+ }
+
+ FVDBG("Buffer from user space:");
+ ffs_dump_mem("", data, len);
+
+ return data;
+}
diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
new file mode 100644
index 0000000..1e00ff9
--- /dev/null
+++ b/drivers/usb/gadget/f_hid.c
@@ -0,0 +1,673 @@
+/*
+ * f_hid.c -- USB HID function driver
+ *
+ * Copyright (C) 2010 Fabien Chouteau <fabien.chouteau@barco.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/utsname.h>
+#include <linux/module.h>
+#include <linux/hid.h>
+#include <linux/cdev.h>
+#include <linux/mutex.h>
+#include <linux/poll.h>
+#include <linux/smp_lock.h>
+#include <linux/uaccess.h>
+#include <linux/wait.h>
+#include <linux/usb/g_hid.h>
+
+static int major, minors;
+static struct class *hidg_class;
+
+/*-------------------------------------------------------------------------*/
+/* HID gadget struct */
+
+struct f_hidg {
+ /* configuration */
+ unsigned char bInterfaceSubClass;
+ unsigned char bInterfaceProtocol;
+ unsigned short report_desc_length;
+ char *report_desc;
+ unsigned short report_length;
+
+ /* recv report */
+ char *set_report_buff;
+ unsigned short set_report_length;
+ spinlock_t spinlock;
+ wait_queue_head_t read_queue;
+
+ /* send report */
+ struct mutex lock;
+ bool write_pending;
+ wait_queue_head_t write_queue;
+ struct usb_request *req;
+
+ int minor;
+ struct cdev cdev;
+ struct usb_function func;
+ struct usb_ep *in_ep;
+ struct usb_endpoint_descriptor *fs_in_ep_desc;
+ struct usb_endpoint_descriptor *hs_in_ep_desc;
+};
+
+static inline struct f_hidg *func_to_hidg(struct usb_function *f)
+{
+ return container_of(f, struct f_hidg, func);
+}
+
+/*-------------------------------------------------------------------------*/
+/* Static descriptors */
+
+static struct usb_interface_descriptor hidg_interface_desc = {
+ .bLength = sizeof hidg_interface_desc,
+ .bDescriptorType = USB_DT_INTERFACE,
+ /* .bInterfaceNumber = DYNAMIC */
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_HID,
+ /* .bInterfaceSubClass = DYNAMIC */
+ /* .bInterfaceProtocol = DYNAMIC */
+ /* .iInterface = DYNAMIC */
+};
+
+static struct hid_descriptor hidg_desc = {
+ .bLength = sizeof hidg_desc,
+ .bDescriptorType = HID_DT_HID,
+ .bcdHID = 0x0101,
+ .bCountryCode = 0x00,
+ .bNumDescriptors = 0x1,
+ /*.desc[0].bDescriptorType = DYNAMIC */
+ /*.desc[0].wDescriptorLenght = DYNAMIC */
+};
+
+/* High-Speed Support */
+
+static struct usb_endpoint_descriptor hidg_hs_in_ep_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+ /*.wMaxPacketSize = DYNAMIC */
+ .bInterval = 4, /* FIXME: Add this field in the
+ * HID gadget configuration?
+ * (struct hidg_func_descriptor)
+ */
+};
+
+static struct usb_descriptor_header *hidg_hs_descriptors[] = {
+ (struct usb_descriptor_header *)&hidg_interface_desc,
+ (struct usb_descriptor_header *)&hidg_desc,
+ (struct usb_descriptor_header *)&hidg_hs_in_ep_desc,
+ NULL,
+};
+
+/* Full-Speed Support */
+
+static struct usb_endpoint_descriptor hidg_fs_in_ep_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+ /*.wMaxPacketSize = DYNAMIC */
+ .bInterval = 10, /* FIXME: Add this field in the
+ * HID gadget configuration?
+ * (struct hidg_func_descriptor)
+ */
+};
+
+static struct usb_descriptor_header *hidg_fs_descriptors[] = {
+ (struct usb_descriptor_header *)&hidg_interface_desc,
+ (struct usb_descriptor_header *)&hidg_desc,
+ (struct usb_descriptor_header *)&hidg_fs_in_ep_desc,
+ NULL,
+};
+
+/*-------------------------------------------------------------------------*/
+/* Char Device */
+
+static ssize_t f_hidg_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ptr)
+{
+ struct f_hidg *hidg = (struct f_hidg *)file->private_data;
+ char *tmp_buff = NULL;
+ unsigned long flags;
+
+ if (!count)
+ return 0;
+
+ if (!access_ok(VERIFY_WRITE, buffer, count))
+ return -EFAULT;
+
+ spin_lock_irqsave(&hidg->spinlock, flags);
+
+#define READ_COND (hidg->set_report_buff != NULL)
+
+ while (!READ_COND) {
+ spin_unlock_irqrestore(&hidg->spinlock, flags);
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ if (wait_event_interruptible(hidg->read_queue, READ_COND))
+ return -ERESTARTSYS;
+
+ spin_lock_irqsave(&hidg->spinlock, flags);
+ }
+
+
+ count = min_t(unsigned, count, hidg->set_report_length);
+ tmp_buff = hidg->set_report_buff;
+ hidg->set_report_buff = NULL;
+
+ spin_unlock_irqrestore(&hidg->spinlock, flags);
+
+ if (tmp_buff != NULL) {
+ /* copy to user outside spinlock */
+ count -= copy_to_user(buffer, tmp_buff, count);
+ kfree(tmp_buff);
+ } else
+ count = -ENOMEM;
+
+ return count;
+}
+
+static void f_hidg_req_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct f_hidg *hidg = (struct f_hidg *)ep->driver_data;
+
+ if (req->status != 0) {
+ ERROR(hidg->func.config->cdev,
+ "End Point Request ERROR: %d\n", req->status);
+ }
+
+ hidg->write_pending = 0;
+ wake_up(&hidg->write_queue);
+}
+
+static ssize_t f_hidg_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *offp)
+{
+ struct f_hidg *hidg = (struct f_hidg *)file->private_data;
+ ssize_t status = -ENOMEM;
+
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+
+ mutex_lock(&hidg->lock);
+
+#define WRITE_COND (!hidg->write_pending)
+
+ /* write queue */
+ while (!WRITE_COND) {
+ mutex_unlock(&hidg->lock);
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ if (wait_event_interruptible_exclusive(
+ hidg->write_queue, WRITE_COND))
+ return -ERESTARTSYS;
+
+ mutex_lock(&hidg->lock);
+ }
+
+ count = min_t(unsigned, count, hidg->report_length);
+ status = copy_from_user(hidg->req->buf, buffer, count);
+
+ if (status != 0) {
+ ERROR(hidg->func.config->cdev,
+ "copy_from_user error\n");
+ mutex_unlock(&hidg->lock);
+ return -EINVAL;
+ }
+
+ hidg->req->status = 0;
+ hidg->req->zero = 0;
+ hidg->req->length = count;
+ hidg->req->complete = f_hidg_req_complete;
+ hidg->req->context = hidg;
+ hidg->write_pending = 1;
+
+ status = usb_ep_queue(hidg->in_ep, hidg->req, GFP_ATOMIC);
+ if (status < 0) {
+ ERROR(hidg->func.config->cdev,
+ "usb_ep_queue error on int endpoint %zd\n", status);
+ hidg->write_pending = 0;
+ wake_up(&hidg->write_queue);
+ } else {
+ status = count;
+ }
+
+ mutex_unlock(&hidg->lock);
+
+ return status;
+}
+
+static unsigned int f_hidg_poll(struct file *file, poll_table *wait)
+{
+ struct f_hidg *hidg = (struct f_hidg *)file->private_data;
+ unsigned int ret = 0;
+
+ poll_wait(file, &hidg->read_queue, wait);
+ poll_wait(file, &hidg->write_queue, wait);
+
+ if (WRITE_COND)
+ ret |= POLLOUT | POLLWRNORM;
+
+ if (READ_COND)
+ ret |= POLLIN | POLLRDNORM;
+
+ return ret;
+}
+
+#undef WRITE_COND
+#undef READ_COND
+
+static int f_hidg_release(struct inode *inode, struct file *fd)
+{
+ fd->private_data = NULL;
+ return 0;
+}
+
+static int f_hidg_open(struct inode *inode, struct file *fd)
+{
+ struct f_hidg *hidg =
+ container_of(inode->i_cdev, struct f_hidg, cdev);
+
+ fd->private_data = hidg;
+
+ return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+/* usb_function */
+
+static void hidg_set_report_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct f_hidg *hidg = (struct f_hidg *)req->context;
+
+ if (req->status != 0 || req->buf == NULL || req->actual == 0) {
+ ERROR(hidg->func.config->cdev, "%s FAILED\n", __func__);
+ return;
+ }
+
+ spin_lock(&hidg->spinlock);
+
+ hidg->set_report_buff = krealloc(hidg->set_report_buff,
+ req->actual, GFP_ATOMIC);
+
+ if (hidg->set_report_buff == NULL) {
+ spin_unlock(&hidg->spinlock);
+ return;
+ }
+ hidg->set_report_length = req->actual;
+ memcpy(hidg->set_report_buff, req->buf, req->actual);
+
+ spin_unlock(&hidg->spinlock);
+
+ wake_up(&hidg->read_queue);
+
+ return;
+}
+
+static int hidg_setup(struct usb_function *f,
+ const struct usb_ctrlrequest *ctrl)
+{
+ struct f_hidg *hidg = func_to_hidg(f);
+ struct usb_composite_dev *cdev = f->config->cdev;
+ struct usb_request *req = cdev->req;
+ int status = 0;
+ __u16 value, length;
+
+ value = __le16_to_cpu(ctrl->wValue);
+ length = __le16_to_cpu(ctrl->wLength);
+
+ VDBG(cdev, "hid_setup crtl_request : bRequestType:0x%x bRequest:0x%x "
+ "Value:0x%x\n", ctrl->bRequestType, ctrl->bRequest, value);
+
+ switch ((ctrl->bRequestType << 8) | ctrl->bRequest) {
+ case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
+ | HID_REQ_GET_REPORT):
+ VDBG(cdev, "get_report\n");
+
+ /* send an empty report */
+ length = min_t(unsigned, length, hidg->report_length);
+ memset(req->buf, 0x0, length);
+
+ goto respond;
+ break;
+
+ case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
+ | HID_REQ_GET_PROTOCOL):
+ VDBG(cdev, "get_protocol\n");
+ goto stall;
+ break;
+
+ case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
+ | HID_REQ_SET_REPORT):
+ VDBG(cdev, "set_report | wLenght=%d\n", ctrl->wLength);
+ req->context = hidg;
+ req->complete = hidg_set_report_complete;
+ goto respond;
+ break;
+
+ case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8
+ | HID_REQ_SET_PROTOCOL):
+ VDBG(cdev, "set_protocol\n");
+ goto stall;
+ break;
+
+ case ((USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_INTERFACE) << 8
+ | USB_REQ_GET_DESCRIPTOR):
+ switch (value >> 8) {
+ case HID_DT_REPORT:
+ VDBG(cdev, "USB_REQ_GET_DESCRIPTOR: REPORT\n");
+ length = min_t(unsigned short, length,
+ hidg->report_desc_length);
+ memcpy(req->buf, hidg->report_desc, length);
+ goto respond;
+ break;
+
+ default:
+ VDBG(cdev, "Unknown decriptor request 0x%x\n",
+ value >> 8);
+ goto stall;
+ break;
+ }
+ break;
+
+ default:
+ VDBG(cdev, "Unknown request 0x%x\n",
+ ctrl->bRequest);
+ goto stall;
+ break;
+ }
+
+stall:
+ return -EOPNOTSUPP;
+
+respond:
+ req->zero = 0;
+ req->length = length;
+ status = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC);
+ if (status < 0)
+ ERROR(cdev, "usb_ep_queue error on ep0 %d\n", value);
+ return status;
+}
+
+static void hidg_disable(struct usb_function *f)
+{
+ struct f_hidg *hidg = func_to_hidg(f);
+
+ usb_ep_disable(hidg->in_ep);
+ hidg->in_ep->driver_data = NULL;
+
+ return;
+}
+
+static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
+{
+ struct usb_composite_dev *cdev = f->config->cdev;
+ struct f_hidg *hidg = func_to_hidg(f);
+ const struct usb_endpoint_descriptor *ep_desc;
+ int status = 0;
+
+ VDBG(cdev, "hidg_set_alt intf:%d alt:%d\n", intf, alt);
+
+ if (hidg->in_ep != NULL) {
+ /* restart endpoint */
+ if (hidg->in_ep->driver_data != NULL)
+ usb_ep_disable(hidg->in_ep);
+
+ ep_desc = ep_choose(f->config->cdev->gadget,
+ hidg->hs_in_ep_desc, hidg->fs_in_ep_desc);
+ status = usb_ep_enable(hidg->in_ep, ep_desc);
+ if (status < 0) {
+ ERROR(cdev, "Enable endpoint FAILED!\n");
+ goto fail;
+ }
+ hidg->in_ep->driver_data = hidg;
+ }
+fail:
+ return status;
+}
+
+const struct file_operations f_hidg_fops = {
+ .owner = THIS_MODULE,
+ .open = f_hidg_open,
+ .release = f_hidg_release,
+ .write = f_hidg_write,
+ .read = f_hidg_read,
+ .poll = f_hidg_poll,
+};
+
+static int __init hidg_bind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct usb_ep *ep;
+ struct f_hidg *hidg = func_to_hidg(f);
+ int status;
+ dev_t dev;
+
+ /* allocate instance-specific interface IDs, and patch descriptors */
+ status = usb_interface_id(c, f);
+ if (status < 0)
+ goto fail;
+ hidg_interface_desc.bInterfaceNumber = status;
+
+
+ /* allocate instance-specific endpoints */
+ status = -ENODEV;
+ ep = usb_ep_autoconfig(c->cdev->gadget, &hidg_fs_in_ep_desc);
+ if (!ep)
+ goto fail;
+ ep->driver_data = c->cdev; /* claim */
+ hidg->in_ep = ep;
+
+ /* preallocate request and buffer */
+ status = -ENOMEM;
+ hidg->req = usb_ep_alloc_request(hidg->in_ep, GFP_KERNEL);
+ if (!hidg->req)
+ goto fail;
+
+
+ hidg->req->buf = kmalloc(hidg->report_length, GFP_KERNEL);
+ if (!hidg->req->buf)
+ goto fail;
+
+ /* set descriptor dynamic values */
+ hidg_interface_desc.bInterfaceSubClass = hidg->bInterfaceSubClass;
+ hidg_interface_desc.bInterfaceProtocol = hidg->bInterfaceProtocol;
+ hidg_hs_in_ep_desc.wMaxPacketSize = cpu_to_le16(hidg->report_length);
+ hidg_fs_in_ep_desc.wMaxPacketSize = cpu_to_le16(hidg->report_length);
+ hidg_desc.desc[0].bDescriptorType = HID_DT_REPORT;
+ hidg_desc.desc[0].wDescriptorLength =
+ cpu_to_le16(hidg->report_desc_length);
+
+ hidg->set_report_buff = NULL;
+
+ /* copy descriptors */
+ f->descriptors = usb_copy_descriptors(hidg_fs_descriptors);
+ if (!f->descriptors)
+ goto fail;
+
+ hidg->fs_in_ep_desc = usb_find_endpoint(hidg_fs_descriptors,
+ f->descriptors,
+ &hidg_fs_in_ep_desc);
+
+ if (gadget_is_dualspeed(c->cdev->gadget)) {
+ hidg_hs_in_ep_desc.bEndpointAddress =
+ hidg_fs_in_ep_desc.bEndpointAddress;
+ f->hs_descriptors = usb_copy_descriptors(hidg_hs_descriptors);
+ if (!f->hs_descriptors)
+ goto fail;
+ hidg->hs_in_ep_desc = usb_find_endpoint(hidg_hs_descriptors,
+ f->hs_descriptors,
+ &hidg_hs_in_ep_desc);
+ } else {
+ hidg->hs_in_ep_desc = NULL;
+ }
+
+ mutex_init(&hidg->lock);
+ spin_lock_init(&hidg->spinlock);
+ init_waitqueue_head(&hidg->write_queue);
+ init_waitqueue_head(&hidg->read_queue);
+
+ /* create char device */
+ cdev_init(&hidg->cdev, &f_hidg_fops);
+ dev = MKDEV(major, hidg->minor);
+ status = cdev_add(&hidg->cdev, dev, 1);
+ if (status)
+ goto fail;
+
+ device_create(hidg_class, NULL, dev, NULL, "%s%d", "hidg", hidg->minor);
+
+ return 0;
+
+fail:
+ ERROR(f->config->cdev, "hidg_bind FAILED\n");
+ if (hidg->req != NULL) {
+ kfree(hidg->req->buf);
+ if (hidg->in_ep != NULL)
+ usb_ep_free_request(hidg->in_ep, hidg->req);
+ }
+
+ usb_free_descriptors(f->hs_descriptors);
+ usb_free_descriptors(f->descriptors);
+
+ return status;
+}
+
+static void hidg_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct f_hidg *hidg = func_to_hidg(f);
+
+ device_destroy(hidg_class, MKDEV(major, hidg->minor));
+ cdev_del(&hidg->cdev);
+
+ /* disable/free request and end point */
+ usb_ep_disable(hidg->in_ep);
+ usb_ep_dequeue(hidg->in_ep, hidg->req);
+ kfree(hidg->req->buf);
+ usb_ep_free_request(hidg->in_ep, hidg->req);
+
+ /* free descriptors copies */
+ usb_free_descriptors(f->hs_descriptors);
+ usb_free_descriptors(f->descriptors);
+
+ kfree(hidg->report_desc);
+ kfree(hidg->set_report_buff);
+ kfree(hidg);
+}
+
+/*-------------------------------------------------------------------------*/
+/* Strings */
+
+#define CT_FUNC_HID_IDX 0
+
+static struct usb_string ct_func_string_defs[] = {
+ [CT_FUNC_HID_IDX].s = "HID Interface",
+ {}, /* end of list */
+};
+
+static struct usb_gadget_strings ct_func_string_table = {
+ .language = 0x0409, /* en-US */
+ .strings = ct_func_string_defs,
+};
+
+static struct usb_gadget_strings *ct_func_strings[] = {
+ &ct_func_string_table,
+ NULL,
+};
+
+/*-------------------------------------------------------------------------*/
+/* usb_configuration */
+
+int __init hidg_bind_config(struct usb_configuration *c,
+ struct hidg_func_descriptor *fdesc, int index)
+{
+ struct f_hidg *hidg;
+ int status;
+
+ if (index >= minors)
+ return -ENOENT;
+
+ /* maybe allocate device-global string IDs, and patch descriptors */
+ if (ct_func_string_defs[CT_FUNC_HID_IDX].id == 0) {
+ status = usb_string_id(c->cdev);
+ if (status < 0)
+ return status;
+ ct_func_string_defs[CT_FUNC_HID_IDX].id = status;
+ hidg_interface_desc.iInterface = status;
+ }
+
+ /* allocate and initialize one new instance */
+ hidg = kzalloc(sizeof *hidg, GFP_KERNEL);
+ if (!hidg)
+ return -ENOMEM;
+
+ hidg->minor = index;
+ hidg->bInterfaceSubClass = fdesc->subclass;
+ hidg->bInterfaceProtocol = fdesc->protocol;
+ hidg->report_length = fdesc->report_length;
+ hidg->report_desc_length = fdesc->report_desc_length;
+ hidg->report_desc = kmemdup(fdesc->report_desc,
+ fdesc->report_desc_length,
+ GFP_KERNEL);
+ if (!hidg->report_desc) {
+ kfree(hidg);
+ return -ENOMEM;
+ }
+
+ hidg->func.name = "hid";
+ hidg->func.strings = ct_func_strings;
+ hidg->func.bind = hidg_bind;
+ hidg->func.unbind = hidg_unbind;
+ hidg->func.set_alt = hidg_set_alt;
+ hidg->func.disable = hidg_disable;
+ hidg->func.setup = hidg_setup;
+
+ status = usb_add_function(c, &hidg->func);
+ if (status)
+ kfree(hidg);
+
+ return status;
+}
+
+int __init ghid_setup(struct usb_gadget *g, int count)
+{
+ int status;
+ dev_t dev;
+
+ hidg_class = class_create(THIS_MODULE, "hidg");
+
+ status = alloc_chrdev_region(&dev, 0, count, "hidg");
+ if (!status) {
+ major = MAJOR(dev);
+ minors = count;
+ }
+
+ return status;
+}
+
+void ghid_cleanup(void)
+{
+ if (major) {
+ unregister_chrdev_region(MKDEV(major, 0), minors);
+ major = minors = 0;
+ }
+
+ class_destroy(hidg_class);
+ hidg_class = NULL;
+}
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index f4911c0..7d05a0b 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -163,6 +163,10 @@
* ro setting are not allowed when the medium is loaded or if CD-ROM
* emulation is being used.
*
+ * When a LUN receive an "eject" SCSI request (Start/Stop Unit),
+ * if the LUN is removable, the backing file is released to simulate
+ * ejection.
+ *
*
* This function is heavily based on "File-backed Storage Gadget" by
* Alan Stern which in turn is heavily based on "Gadget Zero" by David
@@ -302,7 +306,6 @@
#define FSG_NO_INTR_EP 1
-#define FSG_BUFFHD_STATIC_BUFFER 1
#define FSG_NO_DEVICE_STRINGS 1
#define FSG_NO_OTG 1
#define FSG_NO_INTR_EP 1
@@ -1385,12 +1388,50 @@
static int do_start_stop(struct fsg_common *common)
{
- if (!common->curlun) {
+ struct fsg_lun *curlun = common->curlun;
+ int loej, start;
+
+ if (!curlun) {
return -EINVAL;
- } else if (!common->curlun->removable) {
- common->curlun->sense_data = SS_INVALID_COMMAND;
+ } else if (!curlun->removable) {
+ curlun->sense_data = SS_INVALID_COMMAND;
return -EINVAL;
}
+
+ loej = common->cmnd[4] & 0x02;
+ start = common->cmnd[4] & 0x01;
+
+ /* eject code from file_storage.c:do_start_stop() */
+
+ if ((common->cmnd[1] & ~0x01) != 0 || /* Mask away Immed */
+ (common->cmnd[4] & ~0x03) != 0) { /* Mask LoEj, Start */
+ curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
+ return -EINVAL;
+ }
+
+ if (!start) {
+ /* Are we allowed to unload the media? */
+ if (curlun->prevent_medium_removal) {
+ LDBG(curlun, "unload attempt prevented\n");
+ curlun->sense_data = SS_MEDIUM_REMOVAL_PREVENTED;
+ return -EINVAL;
+ }
+ if (loej) { /* Simulate an unload/eject */
+ up_read(&common->filesem);
+ down_write(&common->filesem);
+ fsg_lun_close(curlun);
+ up_write(&common->filesem);
+ down_read(&common->filesem);
+ }
+ } else {
+
+ /* Our emulation doesn't support mounting; the medium is
+ * available for use as soon as it is loaded. */
+ if (!fsg_lun_is_open(curlun)) {
+ curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
+ return -EINVAL;
+ }
+ }
return 0;
}
@@ -2701,10 +2742,8 @@
/* Maybe allocate device-global string IDs, and patch descriptors */
if (fsg_strings[FSG_STRING_INTERFACE].id == 0) {
rc = usb_string_id(cdev);
- if (rc < 0) {
- kfree(common);
- return ERR_PTR(rc);
- }
+ if (unlikely(rc < 0))
+ goto error_release;
fsg_strings[FSG_STRING_INTERFACE].id = rc;
fsg_intf_desc.iInterface = rc;
}
@@ -2712,9 +2751,9 @@
/* Create the LUNs, open their backing files, and register the
* LUN devices in sysfs. */
curlun = kzalloc(nluns * sizeof *curlun, GFP_KERNEL);
- if (!curlun) {
- kfree(common);
- return ERR_PTR(-ENOMEM);
+ if (unlikely(!curlun)) {
+ rc = -ENOMEM;
+ goto error_release;
}
common->luns = curlun;
@@ -2762,13 +2801,19 @@
/* Data buffers cyclic list */
- /* Buffers in buffhds are static -- no need for additional
- * allocation. */
bh = common->buffhds;
- i = FSG_NUM_BUFFERS - 1;
+ i = FSG_NUM_BUFFERS;
+ goto buffhds_first_it;
do {
bh->next = bh + 1;
- } while (++bh, --i);
+ ++bh;
+buffhds_first_it:
+ bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL);
+ if (unlikely(!bh->buf)) {
+ rc = -ENOMEM;
+ goto error_release;
+ }
+ } while (--i);
bh->next = common->buffhds;
@@ -2867,10 +2912,7 @@
static void fsg_common_release(struct kref *ref)
{
- struct fsg_common *common =
- container_of(ref, struct fsg_common, ref);
- unsigned i = common->nluns;
- struct fsg_lun *lun = common->luns;
+ struct fsg_common *common = container_of(ref, struct fsg_common, ref);
/* If the thread isn't already dead, tell it to exit now */
if (common->state != FSG_STATE_TERMINATED) {
@@ -2881,17 +2923,29 @@
complete(&common->thread_notifier);
}
- /* Beware tempting for -> do-while optimization: when in error
- * recovery nluns may be zero. */
+ if (likely(common->luns)) {
+ struct fsg_lun *lun = common->luns;
+ unsigned i = common->nluns;
- for (; i; --i, ++lun) {
- device_remove_file(&lun->dev, &dev_attr_ro);
- device_remove_file(&lun->dev, &dev_attr_file);
- fsg_lun_close(lun);
- device_unregister(&lun->dev);
+ /* In error recovery common->nluns may be zero. */
+ for (; i; --i, ++lun) {
+ device_remove_file(&lun->dev, &dev_attr_ro);
+ device_remove_file(&lun->dev, &dev_attr_file);
+ fsg_lun_close(lun);
+ device_unregister(&lun->dev);
+ }
+
+ kfree(common->luns);
}
- kfree(common->luns);
+ {
+ struct fsg_buffhd *bh = common->buffhds;
+ unsigned i = FSG_NUM_BUFFERS;
+ do {
+ kfree(bh->buf);
+ } while (++bh, --i);
+ }
+
if (common->free_storage_on_release)
kfree(common);
}
@@ -2906,11 +2960,13 @@
DBG(fsg, "unbind\n");
fsg_common_put(fsg->common);
+ usb_free_descriptors(fsg->function.descriptors);
+ usb_free_descriptors(fsg->function.hs_descriptors);
kfree(fsg);
}
-static int __init fsg_bind(struct usb_configuration *c, struct usb_function *f)
+static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
{
struct fsg_dev *fsg = fsg_from_func(f);
struct usb_gadget *gadget = c->cdev->gadget;
@@ -2946,7 +3002,9 @@
fsg_fs_bulk_in_desc.bEndpointAddress;
fsg_hs_bulk_out_desc.bEndpointAddress =
fsg_fs_bulk_out_desc.bEndpointAddress;
- f->hs_descriptors = fsg_hs_function;
+ f->hs_descriptors = usb_copy_descriptors(fsg_hs_function);
+ if (unlikely(!f->hs_descriptors))
+ return -ENOMEM;
}
return 0;
@@ -2978,7 +3036,11 @@
fsg->function.name = FSG_DRIVER_DESC;
fsg->function.strings = fsg_strings_array;
- fsg->function.descriptors = fsg_fs_function;
+ fsg->function.descriptors = usb_copy_descriptors(fsg_fs_function);
+ if (unlikely(!fsg->function.descriptors)) {
+ rc = -ENOMEM;
+ goto error_free_fsg;
+ }
fsg->function.bind = fsg_bind;
fsg->function.unbind = fsg_unbind;
fsg->function.setup = fsg_setup;
@@ -2993,11 +3055,19 @@
* call to usb_add_function() was successful. */
rc = usb_add_function(c, &fsg->function);
+ if (unlikely(rc))
+ goto error_free_all;
- if (likely(rc == 0))
- fsg_common_get(fsg->common);
- else
- kfree(fsg);
+ fsg_common_get(fsg->common);
+ return 0;
+
+error_free_all:
+ usb_free_descriptors(fsg->function.descriptors);
+ /* fsg_bind() might have copied those; or maybe not? who cares
+ * -- free it just in case. */
+ usb_free_descriptors(fsg->function.hs_descriptors);
+error_free_fsg:
+ kfree(fsg);
return rc;
}
diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index 56b0221..882484a 100644
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -122,7 +122,7 @@
/* interface descriptor: */
-static struct usb_interface_descriptor rndis_control_intf __initdata = {
+static struct usb_interface_descriptor rndis_control_intf = {
.bLength = sizeof rndis_control_intf,
.bDescriptorType = USB_DT_INTERFACE,
@@ -135,7 +135,7 @@
/* .iInterface = DYNAMIC */
};
-static struct usb_cdc_header_desc header_desc __initdata = {
+static struct usb_cdc_header_desc header_desc = {
.bLength = sizeof header_desc,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_HEADER_TYPE,
@@ -143,7 +143,7 @@
.bcdCDC = cpu_to_le16(0x0110),
};
-static struct usb_cdc_call_mgmt_descriptor call_mgmt_descriptor __initdata = {
+static struct usb_cdc_call_mgmt_descriptor call_mgmt_descriptor = {
.bLength = sizeof call_mgmt_descriptor,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE,
@@ -152,7 +152,7 @@
.bDataInterface = 0x01,
};
-static struct usb_cdc_acm_descriptor rndis_acm_descriptor __initdata = {
+static struct usb_cdc_acm_descriptor rndis_acm_descriptor = {
.bLength = sizeof rndis_acm_descriptor,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_ACM_TYPE,
@@ -160,7 +160,7 @@
.bmCapabilities = 0x00,
};
-static struct usb_cdc_union_desc rndis_union_desc __initdata = {
+static struct usb_cdc_union_desc rndis_union_desc = {
.bLength = sizeof(rndis_union_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = USB_CDC_UNION_TYPE,
@@ -170,7 +170,7 @@
/* the data interface has two bulk endpoints */
-static struct usb_interface_descriptor rndis_data_intf __initdata = {
+static struct usb_interface_descriptor rndis_data_intf = {
.bLength = sizeof rndis_data_intf,
.bDescriptorType = USB_DT_INTERFACE,
@@ -198,7 +198,7 @@
/* full speed support: */
-static struct usb_endpoint_descriptor fs_notify_desc __initdata = {
+static struct usb_endpoint_descriptor fs_notify_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -208,7 +208,7 @@
.bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC,
};
-static struct usb_endpoint_descriptor fs_in_desc __initdata = {
+static struct usb_endpoint_descriptor fs_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -216,7 +216,7 @@
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static struct usb_endpoint_descriptor fs_out_desc __initdata = {
+static struct usb_endpoint_descriptor fs_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -224,7 +224,7 @@
.bmAttributes = USB_ENDPOINT_XFER_BULK,
};
-static struct usb_descriptor_header *eth_fs_function[] __initdata = {
+static struct usb_descriptor_header *eth_fs_function[] = {
(struct usb_descriptor_header *) &rndis_iad_descriptor,
/* control interface matches ACM, not Ethernet */
(struct usb_descriptor_header *) &rndis_control_intf,
@@ -242,7 +242,7 @@
/* high speed support: */
-static struct usb_endpoint_descriptor hs_notify_desc __initdata = {
+static struct usb_endpoint_descriptor hs_notify_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -251,7 +251,7 @@
.wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT),
.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
};
-static struct usb_endpoint_descriptor hs_in_desc __initdata = {
+static struct usb_endpoint_descriptor hs_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -260,7 +260,7 @@
.wMaxPacketSize = cpu_to_le16(512),
};
-static struct usb_endpoint_descriptor hs_out_desc __initdata = {
+static struct usb_endpoint_descriptor hs_out_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -269,7 +269,7 @@
.wMaxPacketSize = cpu_to_le16(512),
};
-static struct usb_descriptor_header *eth_hs_function[] __initdata = {
+static struct usb_descriptor_header *eth_hs_function[] = {
(struct usb_descriptor_header *) &rndis_iad_descriptor,
/* control interface matches ACM, not Ethernet */
(struct usb_descriptor_header *) &rndis_control_intf,
@@ -594,7 +594,7 @@
/* ethernet function driver setup/binding */
-static int __init
+static int
rndis_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
@@ -786,7 +786,8 @@
* Caller must have called @gether_setup(). Caller is also responsible
* for calling @gether_cleanup() before module unload.
*/
-int __init rndis_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
+int
+rndis_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
{
struct f_rndis *rndis;
int status;
diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c
new file mode 100644
index 0000000..fc2611f
--- /dev/null
+++ b/drivers/usb/gadget/f_uvc.c
@@ -0,0 +1,661 @@
+/*
+ * uvc_gadget.c -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/video.h>
+#include <linux/vmalloc.h>
+#include <linux/wait.h>
+
+#include <media/v4l2-dev.h>
+#include <media/v4l2-event.h>
+
+#include "uvc.h"
+
+unsigned int uvc_trace_param;
+
+/* --------------------------------------------------------------------------
+ * Function descriptors
+ */
+
+/* string IDs are assigned dynamically */
+
+#define UVC_STRING_ASSOCIATION_IDX 0
+#define UVC_STRING_CONTROL_IDX 1
+#define UVC_STRING_STREAMING_IDX 2
+
+static struct usb_string uvc_en_us_strings[] = {
+ [UVC_STRING_ASSOCIATION_IDX].s = "UVC Camera",
+ [UVC_STRING_CONTROL_IDX].s = "Video Control",
+ [UVC_STRING_STREAMING_IDX].s = "Video Streaming",
+ { }
+};
+
+static struct usb_gadget_strings uvc_stringtab = {
+ .language = 0x0409, /* en-us */
+ .strings = uvc_en_us_strings,
+};
+
+static struct usb_gadget_strings *uvc_function_strings[] = {
+ &uvc_stringtab,
+ NULL,
+};
+
+#define UVC_INTF_VIDEO_CONTROL 0
+#define UVC_INTF_VIDEO_STREAMING 1
+
+static struct usb_interface_assoc_descriptor uvc_iad __initdata = {
+ .bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
+ .bFirstInterface = 0,
+ .bInterfaceCount = 2,
+ .bFunctionClass = USB_CLASS_VIDEO,
+ .bFunctionSubClass = 0x03,
+ .bFunctionProtocol = 0x00,
+ .iFunction = 0,
+};
+
+static struct usb_interface_descriptor uvc_control_intf __initdata = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = UVC_INTF_VIDEO_CONTROL,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 0x01,
+ .bInterfaceProtocol = 0x00,
+ .iInterface = 0,
+};
+
+static struct usb_endpoint_descriptor uvc_control_ep __initdata = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+ .wMaxPacketSize = cpu_to_le16(16),
+ .bInterval = 8,
+};
+
+static struct uvc_control_endpoint_descriptor uvc_control_cs_ep __initdata = {
+ .bLength = UVC_DT_CONTROL_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_CS_ENDPOINT,
+ .bDescriptorSubType = UVC_EP_INTERRUPT,
+ .wMaxTransferSize = cpu_to_le16(16),
+};
+
+static struct usb_interface_descriptor uvc_streaming_intf_alt0 __initdata = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = UVC_INTF_VIDEO_STREAMING,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 0,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 0x02,
+ .bInterfaceProtocol = 0x00,
+ .iInterface = 0,
+};
+
+static struct usb_interface_descriptor uvc_streaming_intf_alt1 __initdata = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = UVC_INTF_VIDEO_STREAMING,
+ .bAlternateSetting = 1,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 0x02,
+ .bInterfaceProtocol = 0x00,
+ .iInterface = 0,
+};
+
+static struct usb_endpoint_descriptor uvc_streaming_ep = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_ISOC,
+ .wMaxPacketSize = cpu_to_le16(512),
+ .bInterval = 1,
+};
+
+static const struct usb_descriptor_header * const uvc_fs_streaming[] = {
+ (struct usb_descriptor_header *) &uvc_streaming_intf_alt1,
+ (struct usb_descriptor_header *) &uvc_streaming_ep,
+ NULL,
+};
+
+static const struct usb_descriptor_header * const uvc_hs_streaming[] = {
+ (struct usb_descriptor_header *) &uvc_streaming_intf_alt1,
+ (struct usb_descriptor_header *) &uvc_streaming_ep,
+ NULL,
+};
+
+/* --------------------------------------------------------------------------
+ * Control requests
+ */
+
+static void
+uvc_function_ep0_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct uvc_device *uvc = req->context;
+ struct v4l2_event v4l2_event;
+ struct uvc_event *uvc_event = (void *)&v4l2_event.u.data;
+
+ if (uvc->event_setup_out) {
+ uvc->event_setup_out = 0;
+
+ memset(&v4l2_event, 0, sizeof(v4l2_event));
+ v4l2_event.type = UVC_EVENT_DATA;
+ uvc_event->data.length = req->actual;
+ memcpy(&uvc_event->data.data, req->buf, req->actual);
+ v4l2_event_queue(uvc->vdev, &v4l2_event);
+ }
+}
+
+static int
+uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
+{
+ struct uvc_device *uvc = to_uvc(f);
+ struct v4l2_event v4l2_event;
+ struct uvc_event *uvc_event = (void *)&v4l2_event.u.data;
+
+ /* printk(KERN_INFO "setup request %02x %02x value %04x index %04x %04x\n",
+ * ctrl->bRequestType, ctrl->bRequest, le16_to_cpu(ctrl->wValue),
+ * le16_to_cpu(ctrl->wIndex), le16_to_cpu(ctrl->wLength));
+ */
+
+ if ((ctrl->bRequestType & USB_TYPE_MASK) != USB_TYPE_CLASS) {
+ INFO(f->config->cdev, "invalid request type\n");
+ return -EINVAL;
+ }
+
+ /* Stall too big requests. */
+ if (le16_to_cpu(ctrl->wLength) > UVC_MAX_REQUEST_SIZE)
+ return -EINVAL;
+
+ memset(&v4l2_event, 0, sizeof(v4l2_event));
+ v4l2_event.type = UVC_EVENT_SETUP;
+ memcpy(&uvc_event->req, ctrl, sizeof(uvc_event->req));
+ v4l2_event_queue(uvc->vdev, &v4l2_event);
+
+ return 0;
+}
+
+static int
+uvc_function_get_alt(struct usb_function *f, unsigned interface)
+{
+ struct uvc_device *uvc = to_uvc(f);
+
+ INFO(f->config->cdev, "uvc_function_get_alt(%u)\n", interface);
+
+ if (interface == uvc->control_intf)
+ return 0;
+ else if (interface != uvc->streaming_intf)
+ return -EINVAL;
+ else
+ return uvc->state == UVC_STATE_STREAMING ? 1 : 0;
+}
+
+static int
+uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
+{
+ struct uvc_device *uvc = to_uvc(f);
+ struct v4l2_event v4l2_event;
+ struct uvc_event *uvc_event = (void *)&v4l2_event.u.data;
+
+ INFO(f->config->cdev, "uvc_function_set_alt(%u, %u)\n", interface, alt);
+
+ if (interface == uvc->control_intf) {
+ if (alt)
+ return -EINVAL;
+
+ if (uvc->state == UVC_STATE_DISCONNECTED) {
+ memset(&v4l2_event, 0, sizeof(v4l2_event));
+ v4l2_event.type = UVC_EVENT_CONNECT;
+ uvc_event->speed = f->config->cdev->gadget->speed;
+ v4l2_event_queue(uvc->vdev, &v4l2_event);
+
+ uvc->state = UVC_STATE_CONNECTED;
+ }
+
+ return 0;
+ }
+
+ if (interface != uvc->streaming_intf)
+ return -EINVAL;
+
+ /* TODO
+ if (usb_endpoint_xfer_bulk(&uvc->desc.vs_ep))
+ return alt ? -EINVAL : 0;
+ */
+
+ switch (alt) {
+ case 0:
+ if (uvc->state != UVC_STATE_STREAMING)
+ return 0;
+
+ if (uvc->video.ep)
+ usb_ep_disable(uvc->video.ep);
+
+ memset(&v4l2_event, 0, sizeof(v4l2_event));
+ v4l2_event.type = UVC_EVENT_STREAMOFF;
+ v4l2_event_queue(uvc->vdev, &v4l2_event);
+
+ uvc->state = UVC_STATE_CONNECTED;
+ break;
+
+ case 1:
+ if (uvc->state != UVC_STATE_CONNECTED)
+ return 0;
+
+ if (uvc->video.ep)
+ usb_ep_enable(uvc->video.ep, &uvc_streaming_ep);
+
+ memset(&v4l2_event, 0, sizeof(v4l2_event));
+ v4l2_event.type = UVC_EVENT_STREAMON;
+ v4l2_event_queue(uvc->vdev, &v4l2_event);
+
+ uvc->state = UVC_STATE_STREAMING;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void
+uvc_function_disable(struct usb_function *f)
+{
+ struct uvc_device *uvc = to_uvc(f);
+ struct v4l2_event v4l2_event;
+
+ INFO(f->config->cdev, "uvc_function_disable\n");
+
+ memset(&v4l2_event, 0, sizeof(v4l2_event));
+ v4l2_event.type = UVC_EVENT_DISCONNECT;
+ v4l2_event_queue(uvc->vdev, &v4l2_event);
+
+ uvc->state = UVC_STATE_DISCONNECTED;
+}
+
+/* --------------------------------------------------------------------------
+ * Connection / disconnection
+ */
+
+void
+uvc_function_connect(struct uvc_device *uvc)
+{
+ struct usb_composite_dev *cdev = uvc->func.config->cdev;
+ int ret;
+
+ if ((ret = usb_function_activate(&uvc->func)) < 0)
+ INFO(cdev, "UVC connect failed with %d\n", ret);
+}
+
+void
+uvc_function_disconnect(struct uvc_device *uvc)
+{
+ struct usb_composite_dev *cdev = uvc->func.config->cdev;
+ int ret;
+
+ if ((ret = usb_function_deactivate(&uvc->func)) < 0)
+ INFO(cdev, "UVC disconnect failed with %d\n", ret);
+}
+
+/* --------------------------------------------------------------------------
+ * USB probe and disconnect
+ */
+
+static int
+uvc_register_video(struct uvc_device *uvc)
+{
+ struct usb_composite_dev *cdev = uvc->func.config->cdev;
+ struct video_device *video;
+
+ /* TODO reference counting. */
+ video = video_device_alloc();
+ if (video == NULL)
+ return -ENOMEM;
+
+ video->parent = &cdev->gadget->dev;
+ video->minor = -1;
+ video->fops = &uvc_v4l2_fops;
+ video->release = video_device_release;
+ strncpy(video->name, cdev->gadget->name, sizeof(video->name));
+
+ uvc->vdev = video;
+ video_set_drvdata(video, uvc);
+
+ return video_register_device(video, VFL_TYPE_GRABBER, -1);
+}
+
+#define UVC_COPY_DESCRIPTOR(mem, dst, desc) \
+ do { \
+ memcpy(mem, desc, (desc)->bLength); \
+ *(dst)++ = mem; \
+ mem += (desc)->bLength; \
+ } while (0);
+
+#define UVC_COPY_DESCRIPTORS(mem, dst, src) \
+ do { \
+ const struct usb_descriptor_header * const *__src; \
+ for (__src = src; *__src; ++__src) { \
+ memcpy(mem, *__src, (*__src)->bLength); \
+ *dst++ = mem; \
+ mem += (*__src)->bLength; \
+ } \
+ } while (0)
+
+static struct usb_descriptor_header ** __init
+uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed)
+{
+ struct uvc_input_header_descriptor *uvc_streaming_header;
+ struct uvc_header_descriptor *uvc_control_header;
+ const struct uvc_descriptor_header * const *uvc_streaming_cls;
+ const struct usb_descriptor_header * const *uvc_streaming_std;
+ const struct usb_descriptor_header * const *src;
+ struct usb_descriptor_header **dst;
+ struct usb_descriptor_header **hdr;
+ unsigned int control_size;
+ unsigned int streaming_size;
+ unsigned int n_desc;
+ unsigned int bytes;
+ void *mem;
+
+ uvc_streaming_cls = (speed == USB_SPEED_FULL)
+ ? uvc->desc.fs_streaming : uvc->desc.hs_streaming;
+ uvc_streaming_std = (speed == USB_SPEED_FULL)
+ ? uvc_fs_streaming : uvc_hs_streaming;
+
+ /* Descriptors layout
+ *
+ * uvc_iad
+ * uvc_control_intf
+ * Class-specific UVC control descriptors
+ * uvc_control_ep
+ * uvc_control_cs_ep
+ * uvc_streaming_intf_alt0
+ * Class-specific UVC streaming descriptors
+ * uvc_{fs|hs}_streaming
+ */
+
+ /* Count descriptors and compute their size. */
+ control_size = 0;
+ streaming_size = 0;
+ bytes = uvc_iad.bLength + uvc_control_intf.bLength
+ + uvc_control_ep.bLength + uvc_control_cs_ep.bLength
+ + uvc_streaming_intf_alt0.bLength;
+ n_desc = 5;
+
+ for (src = (const struct usb_descriptor_header**)uvc->desc.control; *src; ++src) {
+ control_size += (*src)->bLength;
+ bytes += (*src)->bLength;
+ n_desc++;
+ }
+ for (src = (const struct usb_descriptor_header**)uvc_streaming_cls; *src; ++src) {
+ streaming_size += (*src)->bLength;
+ bytes += (*src)->bLength;
+ n_desc++;
+ }
+ for (src = uvc_streaming_std; *src; ++src) {
+ bytes += (*src)->bLength;
+ n_desc++;
+ }
+
+ mem = kmalloc((n_desc + 1) * sizeof(*src) + bytes, GFP_KERNEL);
+ if (mem == NULL)
+ return NULL;
+
+ hdr = mem;
+ dst = mem;
+ mem += (n_desc + 1) * sizeof(*src);
+
+ /* Copy the descriptors. */
+ UVC_COPY_DESCRIPTOR(mem, dst, &uvc_iad);
+ UVC_COPY_DESCRIPTOR(mem, dst, &uvc_control_intf);
+
+ uvc_control_header = mem;
+ UVC_COPY_DESCRIPTORS(mem, dst,
+ (const struct usb_descriptor_header**)uvc->desc.control);
+ uvc_control_header->wTotalLength = cpu_to_le16(control_size);
+ uvc_control_header->bInCollection = 1;
+ uvc_control_header->baInterfaceNr[0] = uvc->streaming_intf;
+
+ UVC_COPY_DESCRIPTOR(mem, dst, &uvc_control_ep);
+ UVC_COPY_DESCRIPTOR(mem, dst, &uvc_control_cs_ep);
+ UVC_COPY_DESCRIPTOR(mem, dst, &uvc_streaming_intf_alt0);
+
+ uvc_streaming_header = mem;
+ UVC_COPY_DESCRIPTORS(mem, dst,
+ (const struct usb_descriptor_header**)uvc_streaming_cls);
+ uvc_streaming_header->wTotalLength = cpu_to_le16(streaming_size);
+ uvc_streaming_header->bEndpointAddress = uvc_streaming_ep.bEndpointAddress;
+
+ UVC_COPY_DESCRIPTORS(mem, dst, uvc_streaming_std);
+
+ *dst = NULL;
+ return hdr;
+}
+
+static void
+uvc_function_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct usb_composite_dev *cdev = c->cdev;
+ struct uvc_device *uvc = to_uvc(f);
+
+ INFO(cdev, "uvc_function_unbind\n");
+
+ if (uvc->vdev) {
+ if (uvc->vdev->minor == -1)
+ video_device_release(uvc->vdev);
+ else
+ video_unregister_device(uvc->vdev);
+ uvc->vdev = NULL;
+ }
+
+ if (uvc->control_ep)
+ uvc->control_ep->driver_data = NULL;
+ if (uvc->video.ep)
+ uvc->video.ep->driver_data = NULL;
+
+ if (uvc->control_req) {
+ usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
+ kfree(uvc->control_buf);
+ }
+
+ kfree(f->descriptors);
+ kfree(f->hs_descriptors);
+
+ kfree(uvc);
+}
+
+static int __init
+uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
+{
+ struct usb_composite_dev *cdev = c->cdev;
+ struct uvc_device *uvc = to_uvc(f);
+ struct usb_ep *ep;
+ int ret = -EINVAL;
+
+ INFO(cdev, "uvc_function_bind\n");
+
+ /* Allocate endpoints. */
+ ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep);
+ if (!ep) {
+ INFO(cdev, "Unable to allocate control EP\n");
+ goto error;
+ }
+ uvc->control_ep = ep;
+ ep->driver_data = uvc;
+
+ ep = usb_ep_autoconfig(cdev->gadget, &uvc_streaming_ep);
+ if (!ep) {
+ INFO(cdev, "Unable to allocate streaming EP\n");
+ goto error;
+ }
+ uvc->video.ep = ep;
+ ep->driver_data = uvc;
+
+ /* Allocate interface IDs. */
+ if ((ret = usb_interface_id(c, f)) < 0)
+ goto error;
+ uvc_iad.bFirstInterface = ret;
+ uvc_control_intf.bInterfaceNumber = ret;
+ uvc->control_intf = ret;
+
+ if ((ret = usb_interface_id(c, f)) < 0)
+ goto error;
+ uvc_streaming_intf_alt0.bInterfaceNumber = ret;
+ uvc_streaming_intf_alt1.bInterfaceNumber = ret;
+ uvc->streaming_intf = ret;
+
+ /* Copy descriptors. */
+ f->descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL);
+ f->hs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_HIGH);
+
+ /* Preallocate control endpoint request. */
+ uvc->control_req = usb_ep_alloc_request(cdev->gadget->ep0, GFP_KERNEL);
+ uvc->control_buf = kmalloc(UVC_MAX_REQUEST_SIZE, GFP_KERNEL);
+ if (uvc->control_req == NULL || uvc->control_buf == NULL) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ uvc->control_req->buf = uvc->control_buf;
+ uvc->control_req->complete = uvc_function_ep0_complete;
+ uvc->control_req->context = uvc;
+
+ /* Avoid letting this gadget enumerate until the userspace server is
+ * active.
+ */
+ if ((ret = usb_function_deactivate(f)) < 0)
+ goto error;
+
+ /* Initialise video. */
+ ret = uvc_video_init(&uvc->video);
+ if (ret < 0)
+ goto error;
+
+ /* Register a V4L2 device. */
+ ret = uvc_register_video(uvc);
+ if (ret < 0) {
+ printk(KERN_INFO "Unable to register video device\n");
+ goto error;
+ }
+
+ return 0;
+
+error:
+ uvc_function_unbind(c, f);
+ return ret;
+}
+
+/* --------------------------------------------------------------------------
+ * USB gadget function
+ */
+
+/**
+ * uvc_bind_config - add a UVC function to a configuration
+ * @c: the configuration to support the UVC instance
+ * Context: single threaded during gadget setup
+ *
+ * Returns zero on success, else negative errno.
+ *
+ * Caller must have called @uvc_setup(). Caller is also responsible for
+ * calling @uvc_cleanup() before module unload.
+ */
+int __init
+uvc_bind_config(struct usb_configuration *c,
+ const struct uvc_descriptor_header * const *control,
+ const struct uvc_descriptor_header * const *fs_streaming,
+ const struct uvc_descriptor_header * const *hs_streaming)
+{
+ struct uvc_device *uvc;
+ int ret = 0;
+
+ /* TODO Check if the USB device controller supports the required
+ * features.
+ */
+ if (!gadget_is_dualspeed(c->cdev->gadget))
+ return -EINVAL;
+
+ uvc = kzalloc(sizeof(*uvc), GFP_KERNEL);
+ if (uvc == NULL)
+ return -ENOMEM;
+
+ uvc->state = UVC_STATE_DISCONNECTED;
+
+ /* Validate the descriptors. */
+ if (control == NULL || control[0] == NULL ||
+ control[0]->bDescriptorSubType != UVC_DT_HEADER)
+ goto error;
+
+ if (fs_streaming == NULL || fs_streaming[0] == NULL ||
+ fs_streaming[0]->bDescriptorSubType != UVC_DT_INPUT_HEADER)
+ goto error;
+
+ if (hs_streaming == NULL || hs_streaming[0] == NULL ||
+ hs_streaming[0]->bDescriptorSubType != UVC_DT_INPUT_HEADER)
+ goto error;
+
+ uvc->desc.control = control;
+ uvc->desc.fs_streaming = fs_streaming;
+ uvc->desc.hs_streaming = hs_streaming;
+
+ /* Allocate string descriptor numbers. */
+ if ((ret = usb_string_id(c->cdev)) < 0)
+ goto error;
+ uvc_en_us_strings[UVC_STRING_ASSOCIATION_IDX].id = ret;
+ uvc_iad.iFunction = ret;
+
+ if ((ret = usb_string_id(c->cdev)) < 0)
+ goto error;
+ uvc_en_us_strings[UVC_STRING_CONTROL_IDX].id = ret;
+ uvc_control_intf.iInterface = ret;
+
+ if ((ret = usb_string_id(c->cdev)) < 0)
+ goto error;
+ uvc_en_us_strings[UVC_STRING_STREAMING_IDX].id = ret;
+ uvc_streaming_intf_alt0.iInterface = ret;
+ uvc_streaming_intf_alt1.iInterface = ret;
+
+ /* Register the function. */
+ uvc->func.name = "uvc";
+ uvc->func.strings = uvc_function_strings;
+ uvc->func.bind = uvc_function_bind;
+ uvc->func.unbind = uvc_function_unbind;
+ uvc->func.get_alt = uvc_function_get_alt;
+ uvc->func.set_alt = uvc_function_set_alt;
+ uvc->func.disable = uvc_function_disable;
+ uvc->func.setup = uvc_function_setup;
+
+ ret = usb_add_function(c, &uvc->func);
+ if (ret)
+ kfree(uvc);
+
+ return 0;
+
+error:
+ kfree(uvc);
+ return ret;
+}
+
+module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(trace, "Trace level bitmask");
+
diff --git a/drivers/usb/gadget/f_uvc.h b/drivers/usb/gadget/f_uvc.h
new file mode 100644
index 0000000..8a5db7c
--- /dev/null
+++ b/drivers/usb/gadget/f_uvc.h
@@ -0,0 +1,376 @@
+/*
+ * f_uvc.h -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef _F_UVC_H_
+#define _F_UVC_H_
+
+#include <linux/usb/composite.h>
+
+#define USB_CLASS_VIDEO_CONTROL 1
+#define USB_CLASS_VIDEO_STREAMING 2
+
+struct uvc_descriptor_header {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+} __attribute__ ((packed));
+
+struct uvc_header_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u16 bcdUVC;
+ __u16 wTotalLength;
+ __u32 dwClockFrequency;
+ __u8 bInCollection;
+ __u8 baInterfaceNr[];
+} __attribute__((__packed__));
+
+#define UVC_HEADER_DESCRIPTOR(n) uvc_header_descriptor_##n
+
+#define DECLARE_UVC_HEADER_DESCRIPTOR(n) \
+struct UVC_HEADER_DESCRIPTOR(n) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u16 bcdUVC; \
+ __u16 wTotalLength; \
+ __u32 dwClockFrequency; \
+ __u8 bInCollection; \
+ __u8 baInterfaceNr[n]; \
+} __attribute__ ((packed))
+
+struct uvc_input_terminal_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bTerminalID;
+ __u16 wTerminalType;
+ __u8 bAssocTerminal;
+ __u8 iTerminal;
+} __attribute__((__packed__));
+
+struct uvc_output_terminal_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bTerminalID;
+ __u16 wTerminalType;
+ __u8 bAssocTerminal;
+ __u8 bSourceID;
+ __u8 iTerminal;
+} __attribute__((__packed__));
+
+struct uvc_camera_terminal_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bTerminalID;
+ __u16 wTerminalType;
+ __u8 bAssocTerminal;
+ __u8 iTerminal;
+ __u16 wObjectiveFocalLengthMin;
+ __u16 wObjectiveFocalLengthMax;
+ __u16 wOcularFocalLength;
+ __u8 bControlSize;
+ __u8 bmControls[3];
+} __attribute__((__packed__));
+
+struct uvc_selector_unit_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bUnitID;
+ __u8 bNrInPins;
+ __u8 baSourceID[0];
+ __u8 iSelector;
+} __attribute__((__packed__));
+
+#define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \
+ uvc_selector_unit_descriptor_##n
+
+#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \
+struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u8 bUnitID; \
+ __u8 bNrInPins; \
+ __u8 baSourceID[n]; \
+ __u8 iSelector; \
+} __attribute__ ((packed))
+
+struct uvc_processing_unit_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bUnitID;
+ __u8 bSourceID;
+ __u16 wMaxMultiplier;
+ __u8 bControlSize;
+ __u8 bmControls[2];
+ __u8 iProcessing;
+} __attribute__((__packed__));
+
+struct uvc_extension_unit_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bUnitID;
+ __u8 guidExtensionCode[16];
+ __u8 bNumControls;
+ __u8 bNrInPins;
+ __u8 baSourceID[0];
+ __u8 bControlSize;
+ __u8 bmControls[0];
+ __u8 iExtension;
+} __attribute__((__packed__));
+
+#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
+ uvc_extension_unit_descriptor_##p_##n
+
+#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
+struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u8 bUnitID; \
+ __u8 guidExtensionCode[16]; \
+ __u8 bNumControls; \
+ __u8 bNrInPins; \
+ __u8 baSourceID[p]; \
+ __u8 bControlSize; \
+ __u8 bmControls[n]; \
+ __u8 iExtension; \
+} __attribute__ ((packed))
+
+struct uvc_control_endpoint_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u16 wMaxTransferSize;
+} __attribute__((__packed__));
+
+#define UVC_DT_HEADER 1
+#define UVC_DT_INPUT_TERMINAL 2
+#define UVC_DT_OUTPUT_TERMINAL 3
+#define UVC_DT_SELECTOR_UNIT 4
+#define UVC_DT_PROCESSING_UNIT 5
+#define UVC_DT_EXTENSION_UNIT 6
+
+#define UVC_DT_HEADER_SIZE(n) (12+(n))
+#define UVC_DT_INPUT_TERMINAL_SIZE 8
+#define UVC_DT_OUTPUT_TERMINAL_SIZE 9
+#define UVC_DT_CAMERA_TERMINAL_SIZE(n) (15+(n))
+#define UVC_DT_SELECTOR_UNIT_SIZE(n) (6+(n))
+#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n))
+#define UVC_DT_EXTENSION_UNIT_SIZE(p,n) (24+(p)+(n))
+#define UVC_DT_CONTROL_ENDPOINT_SIZE 5
+
+struct uvc_input_header_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bNumFormats;
+ __u16 wTotalLength;
+ __u8 bEndpointAddress;
+ __u8 bmInfo;
+ __u8 bTerminalLink;
+ __u8 bStillCaptureMethod;
+ __u8 bTriggerSupport;
+ __u8 bTriggerUsage;
+ __u8 bControlSize;
+ __u8 bmaControls[];
+} __attribute__((__packed__));
+
+#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
+ uvc_input_header_descriptor_##n_##p
+
+#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
+struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u8 bNumFormats; \
+ __u16 wTotalLength; \
+ __u8 bEndpointAddress; \
+ __u8 bmInfo; \
+ __u8 bTerminalLink; \
+ __u8 bStillCaptureMethod; \
+ __u8 bTriggerSupport; \
+ __u8 bTriggerUsage; \
+ __u8 bControlSize; \
+ __u8 bmaControls[p][n]; \
+} __attribute__ ((packed))
+
+struct uvc_output_header_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bNumFormats;
+ __u16 wTotalLength;
+ __u8 bEndpointAddress;
+ __u8 bTerminalLink;
+ __u8 bControlSize;
+ __u8 bmaControls[];
+} __attribute__((__packed__));
+
+#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
+ uvc_output_header_descriptor_##n_##p
+
+#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
+struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u8 bNumFormats; \
+ __u16 wTotalLength; \
+ __u8 bEndpointAddress; \
+ __u8 bTerminalLink; \
+ __u8 bControlSize; \
+ __u8 bmaControls[p][n]; \
+} __attribute__ ((packed))
+
+struct uvc_format_uncompressed {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bFormatIndex;
+ __u8 bNumFrameDescriptors;
+ __u8 guidFormat[16];
+ __u8 bBitsPerPixel;
+ __u8 bDefaultFrameIndex;
+ __u8 bAspectRatioX;
+ __u8 bAspectRatioY;
+ __u8 bmInterfaceFlags;
+ __u8 bCopyProtect;
+} __attribute__((__packed__));
+
+struct uvc_frame_uncompressed {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bFrameIndex;
+ __u8 bmCapabilities;
+ __u16 wWidth;
+ __u16 wHeight;
+ __u32 dwMinBitRate;
+ __u32 dwMaxBitRate;
+ __u32 dwMaxVideoFrameBufferSize;
+ __u32 dwDefaultFrameInterval;
+ __u8 bFrameIntervalType;
+ __u32 dwFrameInterval[];
+} __attribute__((__packed__));
+
+#define UVC_FRAME_UNCOMPRESSED(n) \
+ uvc_frame_uncompressed_##n
+
+#define DECLARE_UVC_FRAME_UNCOMPRESSED(n) \
+struct UVC_FRAME_UNCOMPRESSED(n) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u8 bFrameIndex; \
+ __u8 bmCapabilities; \
+ __u16 wWidth; \
+ __u16 wHeight; \
+ __u32 dwMinBitRate; \
+ __u32 dwMaxBitRate; \
+ __u32 dwMaxVideoFrameBufferSize; \
+ __u32 dwDefaultFrameInterval; \
+ __u8 bFrameIntervalType; \
+ __u32 dwFrameInterval[n]; \
+} __attribute__ ((packed))
+
+struct uvc_format_mjpeg {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bFormatIndex;
+ __u8 bNumFrameDescriptors;
+ __u8 bmFlags;
+ __u8 bDefaultFrameIndex;
+ __u8 bAspectRatioX;
+ __u8 bAspectRatioY;
+ __u8 bmInterfaceFlags;
+ __u8 bCopyProtect;
+} __attribute__((__packed__));
+
+struct uvc_frame_mjpeg {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bFrameIndex;
+ __u8 bmCapabilities;
+ __u16 wWidth;
+ __u16 wHeight;
+ __u32 dwMinBitRate;
+ __u32 dwMaxBitRate;
+ __u32 dwMaxVideoFrameBufferSize;
+ __u32 dwDefaultFrameInterval;
+ __u8 bFrameIntervalType;
+ __u32 dwFrameInterval[];
+} __attribute__((__packed__));
+
+#define UVC_FRAME_MJPEG(n) \
+ uvc_frame_mjpeg_##n
+
+#define DECLARE_UVC_FRAME_MJPEG(n) \
+struct UVC_FRAME_MJPEG(n) { \
+ __u8 bLength; \
+ __u8 bDescriptorType; \
+ __u8 bDescriptorSubType; \
+ __u8 bFrameIndex; \
+ __u8 bmCapabilities; \
+ __u16 wWidth; \
+ __u16 wHeight; \
+ __u32 dwMinBitRate; \
+ __u32 dwMaxBitRate; \
+ __u32 dwMaxVideoFrameBufferSize; \
+ __u32 dwDefaultFrameInterval; \
+ __u8 bFrameIntervalType; \
+ __u32 dwFrameInterval[n]; \
+} __attribute__ ((packed))
+
+struct uvc_color_matching_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubType;
+ __u8 bColorPrimaries;
+ __u8 bTransferCharacteristics;
+ __u8 bMatrixCoefficients;
+} __attribute__((__packed__));
+
+#define UVC_DT_INPUT_HEADER 1
+#define UVC_DT_OUTPUT_HEADER 2
+#define UVC_DT_FORMAT_UNCOMPRESSED 4
+#define UVC_DT_FRAME_UNCOMPRESSED 5
+#define UVC_DT_FORMAT_MJPEG 6
+#define UVC_DT_FRAME_MJPEG 7
+#define UVC_DT_COLOR_MATCHING 13
+
+#define UVC_DT_INPUT_HEADER_SIZE(n, p) (13+(n*p))
+#define UVC_DT_OUTPUT_HEADER_SIZE(n, p) (9+(n*p))
+#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27
+#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n) (26+4*(n))
+#define UVC_DT_FORMAT_MJPEG_SIZE 11
+#define UVC_DT_FRAME_MJPEG_SIZE(n) (26+4*(n))
+#define UVC_DT_COLOR_MATCHING_SIZE 6
+
+extern int uvc_bind_config(struct usb_configuration *c,
+ const struct uvc_descriptor_header * const *control,
+ const struct uvc_descriptor_header * const *fs_streaming,
+ const struct uvc_descriptor_header * const *hs_streaming);
+
+#endif /* _F_UVC_H_ */
+
diff --git a/drivers/usb/gadget/fsl_mx3_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
similarity index 89%
rename from drivers/usb/gadget/fsl_mx3_udc.c
rename to drivers/usb/gadget/fsl_mxc_udc.c
index 20a802e..d0b8bde 100644
--- a/drivers/usb/gadget/fsl_mx3_udc.c
+++ b/drivers/usb/gadget/fsl_mxc_udc.c
@@ -50,12 +50,14 @@
goto egusb;
}
- freq = clk_get_rate(mxc_usb_clk);
- if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
- (freq < 59999000 || freq > 60001000)) {
- dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);
- ret = -EINVAL;
- goto eclkrate;
+ if (!cpu_is_mx51()) {
+ freq = clk_get_rate(mxc_usb_clk);
+ if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
+ (freq < 59999000 || freq > 60001000)) {
+ dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);
+ ret = -EINVAL;
+ goto eclkrate;
+ }
}
ret = clk_enable(mxc_usb_clk);
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index fa3d142..08a9a62 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -489,7 +489,7 @@
case USB_ENDPOINT_XFER_ISOC:
/* Calculate transactions needed for high bandwidth iso */
mult = (unsigned char)(1 + ((max >> 11) & 0x03));
- max = max & 0x8ff; /* bit 0~10 */
+ max = max & 0x7ff; /* bit 0~10 */
/* 3 transactions at most */
if (mult > 3)
goto en_done;
diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
new file mode 100644
index 0000000..4b0e4a0
--- /dev/null
+++ b/drivers/usb/gadget/g_ffs.c
@@ -0,0 +1,426 @@
+#include <linux/module.h>
+#include <linux/utsname.h>
+
+
+/*
+ * kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+
+#include "composite.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
+#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
+# if defined USB_ETH_RNDIS
+# undef USB_ETH_RNDIS
+# endif
+# ifdef CONFIG_USB_FUNCTIONFS_RNDIS
+# define USB_ETH_RNDIS y
+# endif
+
+# include "f_ecm.c"
+# include "f_subset.c"
+# ifdef USB_ETH_RNDIS
+# include "f_rndis.c"
+# include "rndis.c"
+# endif
+# include "u_ether.c"
+
+static u8 gfs_hostaddr[ETH_ALEN];
+#else
+# if !defined CONFIG_USB_FUNCTIONFS_GENERIC
+# define CONFIG_USB_FUNCTIONFS_GENERIC
+# endif
+# define gether_cleanup() do { } while (0)
+# define gether_setup(gadget, hostaddr) ((int)0)
+#endif
+
+#include "f_fs.c"
+
+
+#define DRIVER_NAME "g_ffs"
+#define DRIVER_DESC "USB Function Filesystem"
+#define DRIVER_VERSION "24 Aug 2004"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Michal Nazarewicz");
+MODULE_LICENSE("GPL");
+
+
+static unsigned short gfs_vendor_id = 0x0525; /* XXX NetChip */
+static unsigned short gfs_product_id = 0xa4ac; /* XXX */
+
+static struct usb_device_descriptor gfs_dev_desc = {
+ .bLength = sizeof gfs_dev_desc,
+ .bDescriptorType = USB_DT_DEVICE,
+
+ .bcdUSB = cpu_to_le16(0x0200),
+ .bDeviceClass = USB_CLASS_PER_INTERFACE,
+
+ /* Vendor and product id can be overridden by module parameters. */
+ /* .idVendor = cpu_to_le16(gfs_vendor_id), */
+ /* .idProduct = cpu_to_le16(gfs_product_id), */
+ /* .bcdDevice = f(hardware) */
+ /* .iManufacturer = DYNAMIC */
+ /* .iProduct = DYNAMIC */
+ /* NO SERIAL NUMBER */
+ .bNumConfigurations = 1,
+};
+
+#define GFS_MODULE_PARAM_DESC(name, field) \
+ MODULE_PARM_DESC(name, "Value of the " #field " field of the device descriptor sent to the host. Takes effect only prior to the user-space driver registering to the FunctionFS.")
+
+module_param_named(usb_class, gfs_dev_desc.bDeviceClass, byte, 0644);
+GFS_MODULE_PARAM_DESC(usb_class, bDeviceClass);
+module_param_named(usb_subclass, gfs_dev_desc.bDeviceSubClass, byte, 0644);
+GFS_MODULE_PARAM_DESC(usb_subclass, bDeviceSubClass);
+module_param_named(usb_protocol, gfs_dev_desc.bDeviceProtocol, byte, 0644);
+GFS_MODULE_PARAM_DESC(usb_protocol, bDeviceProtocol);
+module_param_named(usb_vendor, gfs_vendor_id, ushort, 0644);
+GFS_MODULE_PARAM_DESC(usb_vendor, idVendor);
+module_param_named(usb_product, gfs_product_id, ushort, 0644);
+GFS_MODULE_PARAM_DESC(usb_product, idProduct);
+
+
+
+static const struct usb_descriptor_header *gfs_otg_desc[] = {
+ (const struct usb_descriptor_header *)
+ &(const struct usb_otg_descriptor) {
+ .bLength = sizeof(struct usb_otg_descriptor),
+ .bDescriptorType = USB_DT_OTG,
+
+ /* REVISIT SRP-only hardware is possible, although
+ * it would not be called "OTG" ... */
+ .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
+ },
+
+ NULL
+};
+
+/* string IDs are assigned dynamically */
+
+enum {
+ GFS_STRING_MANUFACTURER_IDX,
+ GFS_STRING_PRODUCT_IDX,
+#ifdef CONFIG_USB_FUNCTIONFS_RNDIS
+ GFS_STRING_RNDIS_CONFIG_IDX,
+#endif
+#ifdef CONFIG_USB_FUNCTIONFS_ETH
+ GFS_STRING_ECM_CONFIG_IDX,
+#endif
+#ifdef CONFIG_USB_FUNCTIONFS_GENERIC
+ GFS_STRING_GENERIC_CONFIG_IDX,
+#endif
+};
+
+static char gfs_manufacturer[50];
+static const char gfs_driver_desc[] = DRIVER_DESC;
+static const char gfs_short_name[] = DRIVER_NAME;
+
+static struct usb_string gfs_strings[] = {
+ [GFS_STRING_MANUFACTURER_IDX].s = gfs_manufacturer,
+ [GFS_STRING_PRODUCT_IDX].s = gfs_driver_desc,
+#ifdef CONFIG_USB_FUNCTIONFS_RNDIS
+ [GFS_STRING_RNDIS_CONFIG_IDX].s = "FunctionFS + RNDIS",
+#endif
+#ifdef CONFIG_USB_FUNCTIONFS_ETH
+ [GFS_STRING_ECM_CONFIG_IDX].s = "FunctionFS + ECM",
+#endif
+#ifdef CONFIG_USB_FUNCTIONFS_GENERIC
+ [GFS_STRING_GENERIC_CONFIG_IDX].s = "FunctionFS",
+#endif
+ { } /* end of list */
+};
+
+static struct usb_gadget_strings *gfs_dev_strings[] = {
+ &(struct usb_gadget_strings) {
+ .language = 0x0409, /* en-us */
+ .strings = gfs_strings,
+ },
+ NULL,
+};
+
+
+#ifdef CONFIG_USB_FUNCTIONFS_RNDIS
+static int gfs_do_rndis_config(struct usb_configuration *c);
+
+static struct usb_configuration gfs_rndis_config_driver = {
+ .label = "FunctionFS + RNDIS",
+ .bind = gfs_do_rndis_config,
+ .bConfigurationValue = 1,
+ /* .iConfiguration = DYNAMIC */
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+};
+# define gfs_add_rndis_config(cdev) \
+ usb_add_config(cdev, &gfs_rndis_config_driver)
+#else
+# define gfs_add_rndis_config(cdev) 0
+#endif
+
+
+#ifdef CONFIG_USB_FUNCTIONFS_ETH
+static int gfs_do_ecm_config(struct usb_configuration *c);
+
+static struct usb_configuration gfs_ecm_config_driver = {
+ .label = "FunctionFS + ECM",
+ .bind = gfs_do_ecm_config,
+ .bConfigurationValue = 1,
+ /* .iConfiguration = DYNAMIC */
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+};
+# define gfs_add_ecm_config(cdev) \
+ usb_add_config(cdev, &gfs_ecm_config_driver)
+#else
+# define gfs_add_ecm_config(cdev) 0
+#endif
+
+
+#ifdef CONFIG_USB_FUNCTIONFS_GENERIC
+static int gfs_do_generic_config(struct usb_configuration *c);
+
+static struct usb_configuration gfs_generic_config_driver = {
+ .label = "FunctionFS",
+ .bind = gfs_do_generic_config,
+ .bConfigurationValue = 2,
+ /* .iConfiguration = DYNAMIC */
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+};
+# define gfs_add_generic_config(cdev) \
+ usb_add_config(cdev, &gfs_generic_config_driver)
+#else
+# define gfs_add_generic_config(cdev) 0
+#endif
+
+
+static int gfs_bind(struct usb_composite_dev *cdev);
+static int gfs_unbind(struct usb_composite_dev *cdev);
+
+static struct usb_composite_driver gfs_driver = {
+ .name = gfs_short_name,
+ .dev = &gfs_dev_desc,
+ .strings = gfs_dev_strings,
+ .bind = gfs_bind,
+ .unbind = gfs_unbind,
+};
+
+
+static struct ffs_data *gfs_ffs_data;
+static unsigned long gfs_registered;
+
+
+static int gfs_init(void)
+{
+ ENTER();
+
+ return functionfs_init();
+}
+module_init(gfs_init);
+
+static void gfs_exit(void)
+{
+ ENTER();
+
+ if (test_and_clear_bit(0, &gfs_registered))
+ usb_composite_unregister(&gfs_driver);
+
+ functionfs_cleanup();
+}
+module_exit(gfs_exit);
+
+
+static int functionfs_ready_callback(struct ffs_data *ffs)
+{
+ int ret;
+
+ ENTER();
+
+ if (WARN_ON(test_and_set_bit(0, &gfs_registered)))
+ return -EBUSY;
+
+ gfs_ffs_data = ffs;
+ ret = usb_composite_register(&gfs_driver);
+ if (unlikely(ret < 0))
+ clear_bit(0, &gfs_registered);
+ return ret;
+}
+
+static void functionfs_closed_callback(struct ffs_data *ffs)
+{
+ ENTER();
+
+ if (test_and_clear_bit(0, &gfs_registered))
+ usb_composite_unregister(&gfs_driver);
+}
+
+
+static int functionfs_check_dev_callback(const char *dev_name)
+{
+ return 0;
+}
+
+
+
+static int gfs_bind(struct usb_composite_dev *cdev)
+{
+ int ret;
+
+ ENTER();
+
+ if (WARN_ON(!gfs_ffs_data))
+ return -ENODEV;
+
+ ret = gether_setup(cdev->gadget, gfs_hostaddr);
+ if (unlikely(ret < 0))
+ goto error_quick;
+
+ gfs_dev_desc.idVendor = cpu_to_le16(gfs_vendor_id);
+ gfs_dev_desc.idProduct = cpu_to_le16(gfs_product_id);
+
+ snprintf(gfs_manufacturer, sizeof gfs_manufacturer, "%s %s with %s",
+ init_utsname()->sysname, init_utsname()->release,
+ cdev->gadget->name);
+ ret = usb_string_id(cdev);
+ if (unlikely(ret < 0))
+ goto error;
+ gfs_strings[GFS_STRING_MANUFACTURER_IDX].id = ret;
+ gfs_dev_desc.iManufacturer = ret;
+
+ ret = usb_string_id(cdev);
+ if (unlikely(ret < 0))
+ goto error;
+ gfs_strings[GFS_STRING_PRODUCT_IDX].id = ret;
+ gfs_dev_desc.iProduct = ret;
+
+#ifdef CONFIG_USB_FUNCTIONFS_RNDIS
+ ret = usb_string_id(cdev);
+ if (unlikely(ret < 0))
+ goto error;
+ gfs_strings[GFS_STRING_RNDIS_CONFIG_IDX].id = ret;
+ gfs_rndis_config_driver.iConfiguration = ret;
+#endif
+
+#ifdef CONFIG_USB_FUNCTIONFS_ETH
+ ret = usb_string_id(cdev);
+ if (unlikely(ret < 0))
+ goto error;
+ gfs_strings[GFS_STRING_ECM_CONFIG_IDX].id = ret;
+ gfs_ecm_config_driver.iConfiguration = ret;
+#endif
+
+#ifdef CONFIG_USB_FUNCTIONFS_GENERIC
+ ret = usb_string_id(cdev);
+ if (unlikely(ret < 0))
+ goto error;
+ gfs_strings[GFS_STRING_GENERIC_CONFIG_IDX].id = ret;
+ gfs_generic_config_driver.iConfiguration = ret;
+#endif
+
+ ret = functionfs_bind(gfs_ffs_data, cdev);
+ if (unlikely(ret < 0))
+ goto error;
+
+ ret = gfs_add_rndis_config(cdev);
+ if (unlikely(ret < 0))
+ goto error_unbind;
+
+ ret = gfs_add_ecm_config(cdev);
+ if (unlikely(ret < 0))
+ goto error_unbind;
+
+ ret = gfs_add_generic_config(cdev);
+ if (unlikely(ret < 0))
+ goto error_unbind;
+
+ return 0;
+
+error_unbind:
+ functionfs_unbind(gfs_ffs_data);
+error:
+ gether_cleanup();
+error_quick:
+ gfs_ffs_data = NULL;
+ return ret;
+}
+
+static int gfs_unbind(struct usb_composite_dev *cdev)
+{
+ ENTER();
+
+ /* We may have been called in an error recovery frem
+ * composite_bind() after gfs_unbind() failure so we need to
+ * check if gfs_ffs_data is not NULL since gfs_bind() handles
+ * all error recovery itself. I'd rather we werent called
+ * from composite on orror recovery, but what you're gonna
+ * do...? */
+
+ if (gfs_ffs_data) {
+ gether_cleanup();
+ functionfs_unbind(gfs_ffs_data);
+ gfs_ffs_data = NULL;
+ }
+
+ return 0;
+}
+
+
+static int __gfs_do_config(struct usb_configuration *c,
+ int (*eth)(struct usb_configuration *c, u8 *ethaddr),
+ u8 *ethaddr)
+{
+ int ret;
+
+ if (WARN_ON(!gfs_ffs_data))
+ return -ENODEV;
+
+ if (gadget_is_otg(c->cdev->gadget)) {
+ c->descriptors = gfs_otg_desc;
+ c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ }
+
+ if (eth) {
+ ret = eth(c, ethaddr);
+ if (unlikely(ret < 0))
+ return ret;
+ }
+
+ ret = functionfs_add(c->cdev, c, gfs_ffs_data);
+ if (unlikely(ret < 0))
+ return ret;
+
+ return 0;
+}
+
+#ifdef CONFIG_USB_FUNCTIONFS_RNDIS
+static int gfs_do_rndis_config(struct usb_configuration *c)
+{
+ ENTER();
+
+ return __gfs_do_config(c, rndis_bind_config, gfs_hostaddr);
+}
+#endif
+
+#ifdef CONFIG_USB_FUNCTIONFS_ETH
+static int gfs_do_ecm_config(struct usb_configuration *c)
+{
+ ENTER();
+
+ return __gfs_do_config(c,
+ can_support_ecm(c->cdev->gadget)
+ ? ecm_bind_config : geth_bind_config,
+ gfs_hostaddr);
+}
+#endif
+
+#ifdef CONFIG_USB_FUNCTIONFS_GENERIC
+static int gfs_do_generic_config(struct usb_configuration *c)
+{
+ ENTER();
+
+ return __gfs_do_config(c, NULL, NULL);
+}
+#endif
diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c
new file mode 100644
index 0000000..7757226
--- /dev/null
+++ b/drivers/usb/gadget/hid.c
@@ -0,0 +1,298 @@
+/*
+ * hid.c -- HID Composite driver
+ *
+ * Based on multi.c
+ *
+ * Copyright (C) 2010 Fabien Chouteau <fabien.chouteau@barco.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+
+#define DRIVER_DESC "HID Gadget"
+#define DRIVER_VERSION "2010/03/16"
+
+/*-------------------------------------------------------------------------*/
+
+#define HIDG_VENDOR_NUM 0x0525 /* XXX NetChip */
+#define HIDG_PRODUCT_NUM 0xa4ac /* Linux-USB HID gadget */
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+
+#include "composite.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
+#include "f_hid.c"
+
+
+struct hidg_func_node {
+ struct list_head node;
+ struct hidg_func_descriptor *func;
+};
+
+static LIST_HEAD(hidg_func_list);
+
+/*-------------------------------------------------------------------------*/
+
+static struct usb_device_descriptor device_desc = {
+ .bLength = sizeof device_desc,
+ .bDescriptorType = USB_DT_DEVICE,
+
+ .bcdUSB = cpu_to_le16(0x0200),
+
+ /* .bDeviceClass = USB_CLASS_COMM, */
+ /* .bDeviceSubClass = 0, */
+ /* .bDeviceProtocol = 0, */
+ .bDeviceClass = 0xEF,
+ .bDeviceSubClass = 2,
+ .bDeviceProtocol = 1,
+ /* .bMaxPacketSize0 = f(hardware) */
+
+ /* Vendor and product id can be overridden by module parameters. */
+ .idVendor = cpu_to_le16(HIDG_VENDOR_NUM),
+ .idProduct = cpu_to_le16(HIDG_PRODUCT_NUM),
+ /* .bcdDevice = f(hardware) */
+ /* .iManufacturer = DYNAMIC */
+ /* .iProduct = DYNAMIC */
+ /* NO SERIAL NUMBER */
+ .bNumConfigurations = 1,
+};
+
+static struct usb_otg_descriptor otg_descriptor = {
+ .bLength = sizeof otg_descriptor,
+ .bDescriptorType = USB_DT_OTG,
+
+ /* REVISIT SRP-only hardware is possible, although
+ * it would not be called "OTG" ...
+ */
+ .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
+};
+
+static const struct usb_descriptor_header *otg_desc[] = {
+ (struct usb_descriptor_header *) &otg_descriptor,
+ NULL,
+};
+
+
+/* string IDs are assigned dynamically */
+
+#define STRING_MANUFACTURER_IDX 0
+#define STRING_PRODUCT_IDX 1
+
+static char manufacturer[50];
+
+static struct usb_string strings_dev[] = {
+ [STRING_MANUFACTURER_IDX].s = manufacturer,
+ [STRING_PRODUCT_IDX].s = DRIVER_DESC,
+ { } /* end of list */
+};
+
+static struct usb_gadget_strings stringtab_dev = {
+ .language = 0x0409, /* en-us */
+ .strings = strings_dev,
+};
+
+static struct usb_gadget_strings *dev_strings[] = {
+ &stringtab_dev,
+ NULL,
+};
+
+
+
+/****************************** Configurations ******************************/
+
+static int __init do_config(struct usb_configuration *c)
+{
+ struct hidg_func_node *e;
+ int func = 0, status = 0;
+
+ if (gadget_is_otg(c->cdev->gadget)) {
+ c->descriptors = otg_desc;
+ c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ }
+
+ list_for_each_entry(e, &hidg_func_list, node) {
+ status = hidg_bind_config(c, e->func, func++);
+ if (status)
+ break;
+ }
+
+ return status;
+}
+
+static struct usb_configuration config_driver = {
+ .label = "HID Gadget",
+ .bind = do_config,
+ .bConfigurationValue = 1,
+ /* .iConfiguration = DYNAMIC */
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+};
+
+/****************************** Gadget Bind ******************************/
+
+static int __init hid_bind(struct usb_composite_dev *cdev)
+{
+ struct usb_gadget *gadget = cdev->gadget;
+ struct list_head *tmp;
+ int status, gcnum, funcs = 0;
+
+ list_for_each(tmp, &hidg_func_list)
+ funcs++;
+
+ if (!funcs)
+ return -ENODEV;
+
+ /* set up HID */
+ status = ghid_setup(cdev->gadget, funcs);
+ if (status < 0)
+ return status;
+
+ gcnum = usb_gadget_controller_number(gadget);
+ if (gcnum >= 0)
+ device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
+ else
+ device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099);
+
+
+ /* Allocate string descriptor numbers ... note that string
+ * contents can be overridden by the composite_dev glue.
+ */
+
+ /* device descriptor strings: manufacturer, product */
+ snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
+ init_utsname()->sysname, init_utsname()->release,
+ gadget->name);
+ status = usb_string_id(cdev);
+ if (status < 0)
+ return status;
+ strings_dev[STRING_MANUFACTURER_IDX].id = status;
+ device_desc.iManufacturer = status;
+
+ status = usb_string_id(cdev);
+ if (status < 0)
+ return status;
+ strings_dev[STRING_PRODUCT_IDX].id = status;
+ device_desc.iProduct = status;
+
+ /* register our configuration */
+ status = usb_add_config(cdev, &config_driver);
+ if (status < 0)
+ return status;
+
+ dev_info(&gadget->dev, DRIVER_DESC ", version: " DRIVER_VERSION "\n");
+
+ return 0;
+}
+
+static int __exit hid_unbind(struct usb_composite_dev *cdev)
+{
+ ghid_cleanup();
+ return 0;
+}
+
+static int __init hidg_plat_driver_probe(struct platform_device *pdev)
+{
+ struct hidg_func_descriptor *func = pdev->dev.platform_data;
+ struct hidg_func_node *entry;
+
+ if (!func) {
+ dev_err(&pdev->dev, "Platform data missing\n");
+ return -ENODEV;
+ }
+
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ entry->func = func;
+ list_add_tail(&entry->node, &hidg_func_list);
+
+ return 0;
+}
+
+static int __devexit hidg_plat_driver_remove(struct platform_device *pdev)
+{
+ struct hidg_func_node *e, *n;
+
+ list_for_each_entry_safe(e, n, &hidg_func_list, node) {
+ list_del(&e->node);
+ kfree(e);
+ }
+
+ return 0;
+}
+
+
+/****************************** Some noise ******************************/
+
+
+static struct usb_composite_driver hidg_driver = {
+ .name = "g_hid",
+ .dev = &device_desc,
+ .strings = dev_strings,
+ .bind = hid_bind,
+ .unbind = __exit_p(hid_unbind),
+};
+
+static struct platform_driver hidg_plat_driver = {
+ .remove = __devexit_p(hidg_plat_driver_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "hidg",
+ },
+};
+
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Fabien Chouteau, Peter Korsgaard");
+MODULE_LICENSE("GPL");
+
+static int __init hidg_init(void)
+{
+ int status;
+
+ status = platform_driver_probe(&hidg_plat_driver,
+ hidg_plat_driver_probe);
+ if (status < 0)
+ return status;
+
+ status = usb_composite_register(&hidg_driver);
+ if (status < 0)
+ platform_driver_unregister(&hidg_plat_driver);
+
+ return status;
+}
+module_init(hidg_init);
+
+static void __exit hidg_cleanup(void)
+{
+ platform_driver_unregister(&hidg_plat_driver);
+ usb_composite_unregister(&hidg_driver);
+}
+module_exit(hidg_cleanup);
diff --git a/drivers/usb/gadget/pxa27x_udc.h b/drivers/usb/gadget/pxa27x_udc.h
index ff61e48..cd16231 100644
--- a/drivers/usb/gadget/pxa27x_udc.h
+++ b/drivers/usb/gadget/pxa27x_udc.h
@@ -360,7 +360,7 @@
* Specific pxa endpoint data, needed for hardware initialization
*/
unsigned dir_in:1;
- unsigned addr:3;
+ unsigned addr:4;
unsigned config:2;
unsigned interface:3;
unsigned alternate:3;
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 07f4178..1da755a 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -715,7 +715,7 @@
return 0;
}
-static int __init get_ether_addr(const char *str, u8 *dev_addr)
+static int get_ether_addr(const char *str, u8 *dev_addr)
{
if (str) {
unsigned i;
@@ -764,7 +764,7 @@
*
* Returns negative errno, or zero on success
*/
-int __init gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN])
+int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN])
{
struct eth_dev *dev;
struct net_device *net;
diff --git a/drivers/usb/gadget/uvc.h b/drivers/usb/gadget/uvc.h
new file mode 100644
index 0000000..0a705e6
--- /dev/null
+++ b/drivers/usb/gadget/uvc.h
@@ -0,0 +1,241 @@
+/*
+ * uvc_gadget.h -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef _UVC_GADGET_H_
+#define _UVC_GADGET_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/usb/ch9.h>
+
+#define UVC_EVENT_FIRST (V4L2_EVENT_PRIVATE_START + 0)
+#define UVC_EVENT_CONNECT (V4L2_EVENT_PRIVATE_START + 0)
+#define UVC_EVENT_DISCONNECT (V4L2_EVENT_PRIVATE_START + 1)
+#define UVC_EVENT_STREAMON (V4L2_EVENT_PRIVATE_START + 2)
+#define UVC_EVENT_STREAMOFF (V4L2_EVENT_PRIVATE_START + 3)
+#define UVC_EVENT_SETUP (V4L2_EVENT_PRIVATE_START + 4)
+#define UVC_EVENT_DATA (V4L2_EVENT_PRIVATE_START + 5)
+#define UVC_EVENT_LAST (V4L2_EVENT_PRIVATE_START + 5)
+
+struct uvc_request_data
+{
+ unsigned int length;
+ __u8 data[60];
+};
+
+struct uvc_event
+{
+ union {
+ enum usb_device_speed speed;
+ struct usb_ctrlrequest req;
+ struct uvc_request_data data;
+ };
+};
+
+#define UVCIOC_SEND_RESPONSE _IOW('U', 1, struct uvc_request_data)
+
+#define UVC_INTF_CONTROL 0
+#define UVC_INTF_STREAMING 1
+
+/* ------------------------------------------------------------------------
+ * UVC constants & structures
+ */
+
+/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
+#define UVC_STREAM_EOH (1 << 7)
+#define UVC_STREAM_ERR (1 << 6)
+#define UVC_STREAM_STI (1 << 5)
+#define UVC_STREAM_RES (1 << 4)
+#define UVC_STREAM_SCR (1 << 3)
+#define UVC_STREAM_PTS (1 << 2)
+#define UVC_STREAM_EOF (1 << 1)
+#define UVC_STREAM_FID (1 << 0)
+
+struct uvc_streaming_control {
+ __u16 bmHint;
+ __u8 bFormatIndex;
+ __u8 bFrameIndex;
+ __u32 dwFrameInterval;
+ __u16 wKeyFrameRate;
+ __u16 wPFrameRate;
+ __u16 wCompQuality;
+ __u16 wCompWindowSize;
+ __u16 wDelay;
+ __u32 dwMaxVideoFrameSize;
+ __u32 dwMaxPayloadTransferSize;
+ __u32 dwClockFrequency;
+ __u8 bmFramingInfo;
+ __u8 bPreferedVersion;
+ __u8 bMinVersion;
+ __u8 bMaxVersion;
+} __attribute__((__packed__));
+
+/* ------------------------------------------------------------------------
+ * Debugging, printing and logging
+ */
+
+#ifdef __KERNEL__
+
+#include <linux/usb.h> /* For usb_endpoint_* */
+#include <linux/usb/gadget.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-fh.h>
+
+#include "uvc_queue.h"
+
+#define UVC_TRACE_PROBE (1 << 0)
+#define UVC_TRACE_DESCR (1 << 1)
+#define UVC_TRACE_CONTROL (1 << 2)
+#define UVC_TRACE_FORMAT (1 << 3)
+#define UVC_TRACE_CAPTURE (1 << 4)
+#define UVC_TRACE_CALLS (1 << 5)
+#define UVC_TRACE_IOCTL (1 << 6)
+#define UVC_TRACE_FRAME (1 << 7)
+#define UVC_TRACE_SUSPEND (1 << 8)
+#define UVC_TRACE_STATUS (1 << 9)
+
+#define UVC_WARN_MINMAX 0
+#define UVC_WARN_PROBE_DEF 1
+
+extern unsigned int uvc_trace_param;
+
+#define uvc_trace(flag, msg...) \
+ do { \
+ if (uvc_trace_param & flag) \
+ printk(KERN_DEBUG "uvcvideo: " msg); \
+ } while (0)
+
+#define uvc_warn_once(dev, warn, msg...) \
+ do { \
+ if (!test_and_set_bit(warn, &dev->warnings)) \
+ printk(KERN_INFO "uvcvideo: " msg); \
+ } while (0)
+
+#define uvc_printk(level, msg...) \
+ printk(level "uvcvideo: " msg)
+
+/* ------------------------------------------------------------------------
+ * Driver specific constants
+ */
+
+#define DRIVER_VERSION "0.1.0"
+#define DRIVER_VERSION_NUMBER KERNEL_VERSION(0, 1, 0)
+
+#define DMA_ADDR_INVALID (~(dma_addr_t)0)
+
+#define UVC_NUM_REQUESTS 4
+#define UVC_MAX_REQUEST_SIZE 64
+#define UVC_MAX_EVENTS 4
+
+#define USB_DT_INTERFACE_ASSOCIATION_SIZE 8
+#define USB_CLASS_MISC 0xef
+
+/* ------------------------------------------------------------------------
+ * Structures
+ */
+
+struct uvc_video
+{
+ struct usb_ep *ep;
+
+ /* Frame parameters */
+ u8 bpp;
+ u32 fcc;
+ unsigned int width;
+ unsigned int height;
+ unsigned int imagesize;
+
+ /* Requests */
+ unsigned int req_size;
+ struct usb_request *req[UVC_NUM_REQUESTS];
+ __u8 *req_buffer[UVC_NUM_REQUESTS];
+ struct list_head req_free;
+ spinlock_t req_lock;
+
+ void (*encode) (struct usb_request *req, struct uvc_video *video,
+ struct uvc_buffer *buf);
+
+ /* Context data used by the completion handler */
+ __u32 payload_size;
+ __u32 max_payload_size;
+
+ struct uvc_video_queue queue;
+ unsigned int fid;
+};
+
+enum uvc_state
+{
+ UVC_STATE_DISCONNECTED,
+ UVC_STATE_CONNECTED,
+ UVC_STATE_STREAMING,
+};
+
+struct uvc_device
+{
+ struct video_device *vdev;
+ enum uvc_state state;
+ struct usb_function func;
+ struct uvc_video video;
+
+ /* Descriptors */
+ struct {
+ const struct uvc_descriptor_header * const *control;
+ const struct uvc_descriptor_header * const *fs_streaming;
+ const struct uvc_descriptor_header * const *hs_streaming;
+ } desc;
+
+ unsigned int control_intf;
+ struct usb_ep *control_ep;
+ struct usb_request *control_req;
+ void *control_buf;
+
+ unsigned int streaming_intf;
+
+ /* Events */
+ unsigned int event_length;
+ unsigned int event_setup_out : 1;
+};
+
+static inline struct uvc_device *to_uvc(struct usb_function *f)
+{
+ return container_of(f, struct uvc_device, func);
+}
+
+struct uvc_file_handle
+{
+ struct v4l2_fh vfh;
+ struct uvc_video *device;
+};
+
+#define to_uvc_file_handle(handle) \
+ container_of(handle, struct uvc_file_handle, vfh)
+
+extern struct v4l2_file_operations uvc_v4l2_fops;
+
+/* ------------------------------------------------------------------------
+ * Functions
+ */
+
+extern int uvc_video_enable(struct uvc_video *video, int enable);
+extern int uvc_video_init(struct uvc_video *video);
+extern int uvc_video_pump(struct uvc_video *video);
+
+extern void uvc_endpoint_stream(struct uvc_device *dev);
+
+extern void uvc_function_connect(struct uvc_device *uvc);
+extern void uvc_function_disconnect(struct uvc_device *uvc);
+
+#endif /* __KERNEL__ */
+
+#endif /* _UVC_GADGET_H_ */
+
diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c
new file mode 100644
index 0000000..4389199
--- /dev/null
+++ b/drivers/usb/gadget/uvc_queue.c
@@ -0,0 +1,583 @@
+/*
+ * uvc_queue.c -- USB Video Class driver - Buffers management
+ *
+ * Copyright (C) 2005-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/videodev2.h>
+#include <linux/vmalloc.h>
+#include <linux/wait.h>
+#include <asm/atomic.h>
+
+#include "uvc.h"
+
+/* ------------------------------------------------------------------------
+ * Video buffers queue management.
+ *
+ * Video queues is initialized by uvc_queue_init(). The function performs
+ * basic initialization of the uvc_video_queue struct and never fails.
+ *
+ * Video buffer allocation and freeing are performed by uvc_alloc_buffers and
+ * uvc_free_buffers respectively. The former acquires the video queue lock,
+ * while the later must be called with the lock held (so that allocation can
+ * free previously allocated buffers). Trying to free buffers that are mapped
+ * to user space will return -EBUSY.
+ *
+ * Video buffers are managed using two queues. However, unlike most USB video
+ * drivers that use an in queue and an out queue, we use a main queue to hold
+ * all queued buffers (both 'empty' and 'done' buffers), and an irq queue to
+ * hold empty buffers. This design (copied from video-buf) minimizes locking
+ * in interrupt, as only one queue is shared between interrupt and user
+ * contexts.
+ *
+ * Use cases
+ * ---------
+ *
+ * Unless stated otherwise, all operations that modify the irq buffers queue
+ * are protected by the irq spinlock.
+ *
+ * 1. The user queues the buffers, starts streaming and dequeues a buffer.
+ *
+ * The buffers are added to the main and irq queues. Both operations are
+ * protected by the queue lock, and the later is protected by the irq
+ * spinlock as well.
+ *
+ * The completion handler fetches a buffer from the irq queue and fills it
+ * with video data. If no buffer is available (irq queue empty), the handler
+ * returns immediately.
+ *
+ * When the buffer is full, the completion handler removes it from the irq
+ * queue, marks it as ready (UVC_BUF_STATE_DONE) and wakes its wait queue.
+ * At that point, any process waiting on the buffer will be woken up. If a
+ * process tries to dequeue a buffer after it has been marked ready, the
+ * dequeing will succeed immediately.
+ *
+ * 2. Buffers are queued, user is waiting on a buffer and the device gets
+ * disconnected.
+ *
+ * When the device is disconnected, the kernel calls the completion handler
+ * with an appropriate status code. The handler marks all buffers in the
+ * irq queue as being erroneous (UVC_BUF_STATE_ERROR) and wakes them up so
+ * that any process waiting on a buffer gets woken up.
+ *
+ * Waking up up the first buffer on the irq list is not enough, as the
+ * process waiting on the buffer might restart the dequeue operation
+ * immediately.
+ *
+ */
+
+void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
+{
+ mutex_init(&queue->mutex);
+ spin_lock_init(&queue->irqlock);
+ INIT_LIST_HEAD(&queue->mainqueue);
+ INIT_LIST_HEAD(&queue->irqqueue);
+ queue->type = type;
+}
+
+/*
+ * Allocate the video buffers.
+ *
+ * Pages are reserved to make sure they will not be swapped, as they will be
+ * filled in the URB completion handler.
+ *
+ * Buffers will be individually mapped, so they must all be page aligned.
+ */
+int uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers,
+ unsigned int buflength)
+{
+ unsigned int bufsize = PAGE_ALIGN(buflength);
+ unsigned int i;
+ void *mem = NULL;
+ int ret;
+
+ if (nbuffers > UVC_MAX_VIDEO_BUFFERS)
+ nbuffers = UVC_MAX_VIDEO_BUFFERS;
+
+ mutex_lock(&queue->mutex);
+
+ if ((ret = uvc_free_buffers(queue)) < 0)
+ goto done;
+
+ /* Bail out if no buffers should be allocated. */
+ if (nbuffers == 0)
+ goto done;
+
+ /* Decrement the number of buffers until allocation succeeds. */
+ for (; nbuffers > 0; --nbuffers) {
+ mem = vmalloc_32(nbuffers * bufsize);
+ if (mem != NULL)
+ break;
+ }
+
+ if (mem == NULL) {
+ ret = -ENOMEM;
+ goto done;
+ }
+
+ for (i = 0; i < nbuffers; ++i) {
+ memset(&queue->buffer[i], 0, sizeof queue->buffer[i]);
+ queue->buffer[i].buf.index = i;
+ queue->buffer[i].buf.m.offset = i * bufsize;
+ queue->buffer[i].buf.length = buflength;
+ queue->buffer[i].buf.type = queue->type;
+ queue->buffer[i].buf.sequence = 0;
+ queue->buffer[i].buf.field = V4L2_FIELD_NONE;
+ queue->buffer[i].buf.memory = V4L2_MEMORY_MMAP;
+ queue->buffer[i].buf.flags = 0;
+ init_waitqueue_head(&queue->buffer[i].wait);
+ }
+
+ queue->mem = mem;
+ queue->count = nbuffers;
+ queue->buf_size = bufsize;
+ ret = nbuffers;
+
+done:
+ mutex_unlock(&queue->mutex);
+ return ret;
+}
+
+/*
+ * Free the video buffers.
+ *
+ * This function must be called with the queue lock held.
+ */
+int uvc_free_buffers(struct uvc_video_queue *queue)
+{
+ unsigned int i;
+
+ for (i = 0; i < queue->count; ++i) {
+ if (queue->buffer[i].vma_use_count != 0)
+ return -EBUSY;
+ }
+
+ if (queue->count) {
+ vfree(queue->mem);
+ queue->count = 0;
+ }
+
+ return 0;
+}
+
+static void __uvc_query_buffer(struct uvc_buffer *buf,
+ struct v4l2_buffer *v4l2_buf)
+{
+ memcpy(v4l2_buf, &buf->buf, sizeof *v4l2_buf);
+
+ if (buf->vma_use_count)
+ v4l2_buf->flags |= V4L2_BUF_FLAG_MAPPED;
+
+ switch (buf->state) {
+ case UVC_BUF_STATE_ERROR:
+ case UVC_BUF_STATE_DONE:
+ v4l2_buf->flags |= V4L2_BUF_FLAG_DONE;
+ break;
+ case UVC_BUF_STATE_QUEUED:
+ case UVC_BUF_STATE_ACTIVE:
+ v4l2_buf->flags |= V4L2_BUF_FLAG_QUEUED;
+ break;
+ case UVC_BUF_STATE_IDLE:
+ default:
+ break;
+ }
+}
+
+int uvc_query_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *v4l2_buf)
+{
+ int ret = 0;
+
+ mutex_lock(&queue->mutex);
+ if (v4l2_buf->index >= queue->count) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ __uvc_query_buffer(&queue->buffer[v4l2_buf->index], v4l2_buf);
+
+done:
+ mutex_unlock(&queue->mutex);
+ return ret;
+}
+
+/*
+ * Queue a video buffer. Attempting to queue a buffer that has already been
+ * queued will return -EINVAL.
+ */
+int uvc_queue_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *v4l2_buf)
+{
+ struct uvc_buffer *buf;
+ unsigned long flags;
+ int ret = 0;
+
+ uvc_trace(UVC_TRACE_CAPTURE, "Queuing buffer %u.\n", v4l2_buf->index);
+
+ if (v4l2_buf->type != queue->type ||
+ v4l2_buf->memory != V4L2_MEMORY_MMAP) {
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer type (%u) "
+ "and/or memory (%u).\n", v4l2_buf->type,
+ v4l2_buf->memory);
+ return -EINVAL;
+ }
+
+ mutex_lock(&queue->mutex);
+ if (v4l2_buf->index >= queue->count) {
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Out of range index.\n");
+ ret = -EINVAL;
+ goto done;
+ }
+
+ buf = &queue->buffer[v4l2_buf->index];
+ if (buf->state != UVC_BUF_STATE_IDLE) {
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state "
+ "(%u).\n", buf->state);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (v4l2_buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
+ v4l2_buf->bytesused > buf->buf.length) {
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Bytes used out of bounds.\n");
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (v4l2_buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ buf->buf.bytesused = 0;
+ else
+ buf->buf.bytesused = v4l2_buf->bytesused;
+
+ spin_lock_irqsave(&queue->irqlock, flags);
+ if (queue->flags & UVC_QUEUE_DISCONNECTED) {
+ spin_unlock_irqrestore(&queue->irqlock, flags);
+ ret = -ENODEV;
+ goto done;
+ }
+ buf->state = UVC_BUF_STATE_QUEUED;
+
+ ret = (queue->flags & UVC_QUEUE_PAUSED) != 0;
+ queue->flags &= ~UVC_QUEUE_PAUSED;
+
+ list_add_tail(&buf->stream, &queue->mainqueue);
+ list_add_tail(&buf->queue, &queue->irqqueue);
+ spin_unlock_irqrestore(&queue->irqlock, flags);
+
+done:
+ mutex_unlock(&queue->mutex);
+ return ret;
+}
+
+static int uvc_queue_waiton(struct uvc_buffer *buf, int nonblocking)
+{
+ if (nonblocking) {
+ return (buf->state != UVC_BUF_STATE_QUEUED &&
+ buf->state != UVC_BUF_STATE_ACTIVE)
+ ? 0 : -EAGAIN;
+ }
+
+ return wait_event_interruptible(buf->wait,
+ buf->state != UVC_BUF_STATE_QUEUED &&
+ buf->state != UVC_BUF_STATE_ACTIVE);
+}
+
+/*
+ * Dequeue a video buffer. If nonblocking is false, block until a buffer is
+ * available.
+ */
+int uvc_dequeue_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *v4l2_buf, int nonblocking)
+{
+ struct uvc_buffer *buf;
+ int ret = 0;
+
+ if (v4l2_buf->type != queue->type ||
+ v4l2_buf->memory != V4L2_MEMORY_MMAP) {
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer type (%u) "
+ "and/or memory (%u).\n", v4l2_buf->type,
+ v4l2_buf->memory);
+ return -EINVAL;
+ }
+
+ mutex_lock(&queue->mutex);
+ if (list_empty(&queue->mainqueue)) {
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Empty buffer queue.\n");
+ ret = -EINVAL;
+ goto done;
+ }
+
+ buf = list_first_entry(&queue->mainqueue, struct uvc_buffer, stream);
+ if ((ret = uvc_queue_waiton(buf, nonblocking)) < 0)
+ goto done;
+
+ uvc_trace(UVC_TRACE_CAPTURE, "Dequeuing buffer %u (%u, %u bytes).\n",
+ buf->buf.index, buf->state, buf->buf.bytesused);
+
+ switch (buf->state) {
+ case UVC_BUF_STATE_ERROR:
+ uvc_trace(UVC_TRACE_CAPTURE, "[W] Corrupted data "
+ "(transmission error).\n");
+ ret = -EIO;
+ case UVC_BUF_STATE_DONE:
+ buf->state = UVC_BUF_STATE_IDLE;
+ break;
+
+ case UVC_BUF_STATE_IDLE:
+ case UVC_BUF_STATE_QUEUED:
+ case UVC_BUF_STATE_ACTIVE:
+ default:
+ uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state %u "
+ "(driver bug?).\n", buf->state);
+ ret = -EINVAL;
+ goto done;
+ }
+
+ list_del(&buf->stream);
+ __uvc_query_buffer(buf, v4l2_buf);
+
+done:
+ mutex_unlock(&queue->mutex);
+ return ret;
+}
+
+/*
+ * Poll the video queue.
+ *
+ * This function implements video queue polling and is intended to be used by
+ * the device poll handler.
+ */
+unsigned int uvc_queue_poll(struct uvc_video_queue *queue, struct file *file,
+ poll_table *wait)
+{
+ struct uvc_buffer *buf;
+ unsigned int mask = 0;
+
+ mutex_lock(&queue->mutex);
+ if (list_empty(&queue->mainqueue))
+ goto done;
+
+ buf = list_first_entry(&queue->mainqueue, struct uvc_buffer, stream);
+
+ poll_wait(file, &buf->wait, wait);
+ if (buf->state == UVC_BUF_STATE_DONE ||
+ buf->state == UVC_BUF_STATE_ERROR)
+ mask |= POLLOUT | POLLWRNORM;
+
+done:
+ mutex_unlock(&queue->mutex);
+ return mask;
+}
+
+/*
+ * VMA operations.
+ */
+static void uvc_vm_open(struct vm_area_struct *vma)
+{
+ struct uvc_buffer *buffer = vma->vm_private_data;
+ buffer->vma_use_count++;
+}
+
+static void uvc_vm_close(struct vm_area_struct *vma)
+{
+ struct uvc_buffer *buffer = vma->vm_private_data;
+ buffer->vma_use_count--;
+}
+
+static struct vm_operations_struct uvc_vm_ops = {
+ .open = uvc_vm_open,
+ .close = uvc_vm_close,
+};
+
+/*
+ * Memory-map a buffer.
+ *
+ * This function implements video buffer memory mapping and is intended to be
+ * used by the device mmap handler.
+ */
+int uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)
+{
+ struct uvc_buffer *uninitialized_var(buffer);
+ struct page *page;
+ unsigned long addr, start, size;
+ unsigned int i;
+ int ret = 0;
+
+ start = vma->vm_start;
+ size = vma->vm_end - vma->vm_start;
+
+ mutex_lock(&queue->mutex);
+
+ for (i = 0; i < queue->count; ++i) {
+ buffer = &queue->buffer[i];
+ if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
+ break;
+ }
+
+ if (i == queue->count || size != queue->buf_size) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ /*
+ * VM_IO marks the area as being an mmaped region for I/O to a
+ * device. It also prevents the region from being core dumped.
+ */
+ vma->vm_flags |= VM_IO;
+
+ addr = (unsigned long)queue->mem + buffer->buf.m.offset;
+ while (size > 0) {
+ page = vmalloc_to_page((void *)addr);
+ if ((ret = vm_insert_page(vma, start, page)) < 0)
+ goto done;
+
+ start += PAGE_SIZE;
+ addr += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ vma->vm_ops = &uvc_vm_ops;
+ vma->vm_private_data = buffer;
+ uvc_vm_open(vma);
+
+done:
+ mutex_unlock(&queue->mutex);
+ return ret;
+}
+
+/*
+ * Enable or disable the video buffers queue.
+ *
+ * The queue must be enabled before starting video acquisition and must be
+ * disabled after stopping it. This ensures that the video buffers queue
+ * state can be properly initialized before buffers are accessed from the
+ * interrupt handler.
+ *
+ * Enabling the video queue initializes parameters (such as sequence number,
+ * sync pattern, ...). If the queue is already enabled, return -EBUSY.
+ *
+ * Disabling the video queue cancels the queue and removes all buffers from
+ * the main queue.
+ *
+ * This function can't be called from interrupt context. Use
+ * uvc_queue_cancel() instead.
+ */
+int uvc_queue_enable(struct uvc_video_queue *queue, int enable)
+{
+ unsigned int i;
+ int ret = 0;
+
+ mutex_lock(&queue->mutex);
+ if (enable) {
+ if (uvc_queue_streaming(queue)) {
+ ret = -EBUSY;
+ goto done;
+ }
+ queue->sequence = 0;
+ queue->flags |= UVC_QUEUE_STREAMING;
+ queue->buf_used = 0;
+ } else {
+ uvc_queue_cancel(queue, 0);
+ INIT_LIST_HEAD(&queue->mainqueue);
+
+ for (i = 0; i < queue->count; ++i)
+ queue->buffer[i].state = UVC_BUF_STATE_IDLE;
+
+ queue->flags &= ~UVC_QUEUE_STREAMING;
+ }
+
+done:
+ mutex_unlock(&queue->mutex);
+ return ret;
+}
+
+/*
+ * Cancel the video buffers queue.
+ *
+ * Cancelling the queue marks all buffers on the irq queue as erroneous,
+ * wakes them up and removes them from the queue.
+ *
+ * If the disconnect parameter is set, further calls to uvc_queue_buffer will
+ * fail with -ENODEV.
+ *
+ * This function acquires the irq spinlock and can be called from interrupt
+ * context.
+ */
+void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect)
+{
+ struct uvc_buffer *buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&queue->irqlock, flags);
+ while (!list_empty(&queue->irqqueue)) {
+ buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,
+ queue);
+ list_del(&buf->queue);
+ buf->state = UVC_BUF_STATE_ERROR;
+ wake_up(&buf->wait);
+ }
+ /* This must be protected by the irqlock spinlock to avoid race
+ * conditions between uvc_queue_buffer and the disconnection event that
+ * could result in an interruptible wait in uvc_dequeue_buffer. Do not
+ * blindly replace this logic by checking for the UVC_DEV_DISCONNECTED
+ * state outside the queue code.
+ */
+ if (disconnect)
+ queue->flags |= UVC_QUEUE_DISCONNECTED;
+ spin_unlock_irqrestore(&queue->irqlock, flags);
+}
+
+struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
+ struct uvc_buffer *buf)
+{
+ struct uvc_buffer *nextbuf;
+ unsigned long flags;
+
+ if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) &&
+ buf->buf.length != buf->buf.bytesused) {
+ buf->state = UVC_BUF_STATE_QUEUED;
+ buf->buf.bytesused = 0;
+ return buf;
+ }
+
+ spin_lock_irqsave(&queue->irqlock, flags);
+ list_del(&buf->queue);
+ if (!list_empty(&queue->irqqueue))
+ nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer,
+ queue);
+ else
+ nextbuf = NULL;
+ spin_unlock_irqrestore(&queue->irqlock, flags);
+
+ buf->buf.sequence = queue->sequence++;
+ do_gettimeofday(&buf->buf.timestamp);
+
+ wake_up(&buf->wait);
+ return nextbuf;
+}
+
+struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue)
+{
+ struct uvc_buffer *buf = NULL;
+
+ if (!list_empty(&queue->irqqueue))
+ buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,
+ queue);
+ else
+ queue->flags |= UVC_QUEUE_PAUSED;
+
+ return buf;
+}
+
diff --git a/drivers/usb/gadget/uvc_queue.h b/drivers/usb/gadget/uvc_queue.h
new file mode 100644
index 0000000..7f5a33f
--- /dev/null
+++ b/drivers/usb/gadget/uvc_queue.h
@@ -0,0 +1,89 @@
+#ifndef _UVC_QUEUE_H_
+#define _UVC_QUEUE_H_
+
+#ifdef __KERNEL__
+
+#include <linux/kernel.h>
+#include <linux/poll.h>
+#include <linux/videodev2.h>
+
+/* Maximum frame size in bytes, for sanity checking. */
+#define UVC_MAX_FRAME_SIZE (16*1024*1024)
+/* Maximum number of video buffers. */
+#define UVC_MAX_VIDEO_BUFFERS 32
+
+/* ------------------------------------------------------------------------
+ * Structures.
+ */
+
+enum uvc_buffer_state {
+ UVC_BUF_STATE_IDLE = 0,
+ UVC_BUF_STATE_QUEUED = 1,
+ UVC_BUF_STATE_ACTIVE = 2,
+ UVC_BUF_STATE_DONE = 3,
+ UVC_BUF_STATE_ERROR = 4,
+};
+
+struct uvc_buffer {
+ unsigned long vma_use_count;
+ struct list_head stream;
+
+ /* Touched by interrupt handler. */
+ struct v4l2_buffer buf;
+ struct list_head queue;
+ wait_queue_head_t wait;
+ enum uvc_buffer_state state;
+};
+
+#define UVC_QUEUE_STREAMING (1 << 0)
+#define UVC_QUEUE_DISCONNECTED (1 << 1)
+#define UVC_QUEUE_DROP_INCOMPLETE (1 << 2)
+#define UVC_QUEUE_PAUSED (1 << 3)
+
+struct uvc_video_queue {
+ enum v4l2_buf_type type;
+
+ void *mem;
+ unsigned int flags;
+ __u32 sequence;
+
+ unsigned int count;
+ unsigned int buf_size;
+ unsigned int buf_used;
+ struct uvc_buffer buffer[UVC_MAX_VIDEO_BUFFERS];
+ struct mutex mutex; /* protects buffers and mainqueue */
+ spinlock_t irqlock; /* protects irqqueue */
+
+ struct list_head mainqueue;
+ struct list_head irqqueue;
+};
+
+extern void uvc_queue_init(struct uvc_video_queue *queue,
+ enum v4l2_buf_type type);
+extern int uvc_alloc_buffers(struct uvc_video_queue *queue,
+ unsigned int nbuffers, unsigned int buflength);
+extern int uvc_free_buffers(struct uvc_video_queue *queue);
+extern int uvc_query_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *v4l2_buf);
+extern int uvc_queue_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *v4l2_buf);
+extern int uvc_dequeue_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *v4l2_buf, int nonblocking);
+extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable);
+extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
+extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
+ struct uvc_buffer *buf);
+extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue,
+ struct file *file, poll_table *wait);
+extern int uvc_queue_mmap(struct uvc_video_queue *queue,
+ struct vm_area_struct *vma);
+static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
+{
+ return queue->flags & UVC_QUEUE_STREAMING;
+}
+extern struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue);
+
+#endif /* __KERNEL__ */
+
+#endif /* _UVC_QUEUE_H_ */
+
diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c
new file mode 100644
index 0000000..a7989f2
--- /dev/null
+++ b/drivers/usb/gadget/uvc_v4l2.c
@@ -0,0 +1,374 @@
+/*
+ * uvc_v4l2.c -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/version.h>
+#include <linux/videodev2.h>
+#include <linux/vmalloc.h>
+#include <linux/wait.h>
+
+#include <media/v4l2-dev.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+
+#include "uvc.h"
+#include "uvc_queue.h"
+
+/* --------------------------------------------------------------------------
+ * Requests handling
+ */
+
+static int
+uvc_send_response(struct uvc_device *uvc, struct uvc_request_data *data)
+{
+ struct usb_composite_dev *cdev = uvc->func.config->cdev;
+ struct usb_request *req = uvc->control_req;
+
+ if (data->length < 0)
+ return usb_ep_set_halt(cdev->gadget->ep0);
+
+ req->length = min(uvc->event_length, data->length);
+ req->zero = data->length < uvc->event_length;
+ req->dma = DMA_ADDR_INVALID;
+
+ memcpy(req->buf, data->data, data->length);
+
+ return usb_ep_queue(cdev->gadget->ep0, req, GFP_KERNEL);
+}
+
+/* --------------------------------------------------------------------------
+ * V4L2
+ */
+
+struct uvc_format
+{
+ u8 bpp;
+ u32 fcc;
+};
+
+static struct uvc_format uvc_formats[] = {
+ { 16, V4L2_PIX_FMT_YUYV },
+ { 0, V4L2_PIX_FMT_MJPEG },
+};
+
+static int
+uvc_v4l2_get_format(struct uvc_video *video, struct v4l2_format *fmt)
+{
+ fmt->fmt.pix.pixelformat = video->fcc;
+ fmt->fmt.pix.width = video->width;
+ fmt->fmt.pix.height = video->height;
+ fmt->fmt.pix.field = V4L2_FIELD_NONE;
+ fmt->fmt.pix.bytesperline = video->bpp * video->width / 8;
+ fmt->fmt.pix.sizeimage = video->imagesize;
+ fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
+ fmt->fmt.pix.priv = 0;
+
+ return 0;
+}
+
+static int
+uvc_v4l2_set_format(struct uvc_video *video, struct v4l2_format *fmt)
+{
+ struct uvc_format *format;
+ unsigned int imagesize;
+ unsigned int bpl;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(uvc_formats); ++i) {
+ format = &uvc_formats[i];
+ if (format->fcc == fmt->fmt.pix.pixelformat)
+ break;
+ }
+
+ if (format == NULL || format->fcc != fmt->fmt.pix.pixelformat) {
+ printk(KERN_INFO "Unsupported format 0x%08x.\n",
+ fmt->fmt.pix.pixelformat);
+ return -EINVAL;
+ }
+
+ bpl = format->bpp * fmt->fmt.pix.width / 8;
+ imagesize = bpl ? bpl * fmt->fmt.pix.height : fmt->fmt.pix.sizeimage;
+
+ video->fcc = format->fcc;
+ video->bpp = format->bpp;
+ video->width = fmt->fmt.pix.width;
+ video->height = fmt->fmt.pix.height;
+ video->imagesize = imagesize;
+
+ fmt->fmt.pix.field = V4L2_FIELD_NONE;
+ fmt->fmt.pix.bytesperline = bpl;
+ fmt->fmt.pix.sizeimage = imagesize;
+ fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
+ fmt->fmt.pix.priv = 0;
+
+ return 0;
+}
+
+static int
+uvc_v4l2_open(struct file *file)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct uvc_device *uvc = video_get_drvdata(vdev);
+ struct uvc_file_handle *handle;
+ int ret;
+
+ handle = kzalloc(sizeof(*handle), GFP_KERNEL);
+ if (handle == NULL)
+ return -ENOMEM;
+
+ ret = v4l2_fh_init(&handle->vfh, vdev);
+ if (ret < 0)
+ goto error;
+
+ ret = v4l2_event_init(&handle->vfh);
+ if (ret < 0)
+ goto error;
+
+ ret = v4l2_event_alloc(&handle->vfh, 8);
+ if (ret < 0)
+ goto error;
+
+ v4l2_fh_add(&handle->vfh);
+
+ handle->device = &uvc->video;
+ file->private_data = &handle->vfh;
+
+ uvc_function_connect(uvc);
+ return 0;
+
+error:
+ v4l2_fh_exit(&handle->vfh);
+ return ret;
+}
+
+static int
+uvc_v4l2_release(struct file *file)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct uvc_device *uvc = video_get_drvdata(vdev);
+ struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
+ struct uvc_video *video = handle->device;
+
+ uvc_function_disconnect(uvc);
+
+ uvc_video_enable(video, 0);
+ mutex_lock(&video->queue.mutex);
+ if (uvc_free_buffers(&video->queue) < 0)
+ printk(KERN_ERR "uvc_v4l2_release: Unable to free "
+ "buffers.\n");
+ mutex_unlock(&video->queue.mutex);
+
+ file->private_data = NULL;
+ v4l2_fh_del(&handle->vfh);
+ v4l2_fh_exit(&handle->vfh);
+ kfree(handle);
+ return 0;
+}
+
+static long
+uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct uvc_device *uvc = video_get_drvdata(vdev);
+ struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
+ struct usb_composite_dev *cdev = uvc->func.config->cdev;
+ struct uvc_video *video = &uvc->video;
+ int ret = 0;
+
+ switch (cmd) {
+ /* Query capabilities */
+ case VIDIOC_QUERYCAP:
+ {
+ struct v4l2_capability *cap = arg;
+
+ memset(cap, 0, sizeof *cap);
+ strncpy(cap->driver, "g_uvc", sizeof(cap->driver));
+ strncpy(cap->card, cdev->gadget->name, sizeof(cap->card));
+ strncpy(cap->bus_info, dev_name(&cdev->gadget->dev),
+ sizeof cap->bus_info);
+ cap->version = DRIVER_VERSION_NUMBER;
+ cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
+ break;
+ }
+
+ /* Get & Set format */
+ case VIDIOC_G_FMT:
+ {
+ struct v4l2_format *fmt = arg;
+
+ if (fmt->type != video->queue.type)
+ return -EINVAL;
+
+ return uvc_v4l2_get_format(video, fmt);
+ }
+
+ case VIDIOC_S_FMT:
+ {
+ struct v4l2_format *fmt = arg;
+
+ if (fmt->type != video->queue.type)
+ return -EINVAL;
+
+ return uvc_v4l2_set_format(video, fmt);
+ }
+
+ /* Buffers & streaming */
+ case VIDIOC_REQBUFS:
+ {
+ struct v4l2_requestbuffers *rb = arg;
+
+ if (rb->type != video->queue.type ||
+ rb->memory != V4L2_MEMORY_MMAP)
+ return -EINVAL;
+
+ ret = uvc_alloc_buffers(&video->queue, rb->count,
+ video->imagesize);
+ if (ret < 0)
+ return ret;
+
+ rb->count = ret;
+ ret = 0;
+ break;
+ }
+
+ case VIDIOC_QUERYBUF:
+ {
+ struct v4l2_buffer *buf = arg;
+
+ if (buf->type != video->queue.type)
+ return -EINVAL;
+
+ return uvc_query_buffer(&video->queue, buf);
+ }
+
+ case VIDIOC_QBUF:
+ if ((ret = uvc_queue_buffer(&video->queue, arg)) < 0)
+ return ret;
+
+ return uvc_video_pump(video);
+
+ case VIDIOC_DQBUF:
+ return uvc_dequeue_buffer(&video->queue, arg,
+ file->f_flags & O_NONBLOCK);
+
+ case VIDIOC_STREAMON:
+ {
+ int *type = arg;
+
+ if (*type != video->queue.type)
+ return -EINVAL;
+
+ return uvc_video_enable(video, 1);
+ }
+
+ case VIDIOC_STREAMOFF:
+ {
+ int *type = arg;
+
+ if (*type != video->queue.type)
+ return -EINVAL;
+
+ return uvc_video_enable(video, 0);
+ }
+
+ /* Events */
+ case VIDIOC_DQEVENT:
+ {
+ struct v4l2_event *event = arg;
+
+ ret = v4l2_event_dequeue(&handle->vfh, event,
+ file->f_flags & O_NONBLOCK);
+ if (ret == 0 && event->type == UVC_EVENT_SETUP) {
+ struct uvc_event *uvc_event = (void *)&event->u.data;
+
+ /* Tell the complete callback to generate an event for
+ * the next request that will be enqueued by
+ * uvc_event_write.
+ */
+ uvc->event_setup_out =
+ !(uvc_event->req.bRequestType & USB_DIR_IN);
+ uvc->event_length = uvc_event->req.wLength;
+ }
+
+ return ret;
+ }
+
+ case VIDIOC_SUBSCRIBE_EVENT:
+ {
+ struct v4l2_event_subscription *sub = arg;
+
+ if (sub->type < UVC_EVENT_FIRST || sub->type > UVC_EVENT_LAST)
+ return -EINVAL;
+
+ return v4l2_event_subscribe(&handle->vfh, arg);
+ }
+
+ case VIDIOC_UNSUBSCRIBE_EVENT:
+ return v4l2_event_unsubscribe(&handle->vfh, arg);
+
+ case UVCIOC_SEND_RESPONSE:
+ ret = uvc_send_response(uvc, arg);
+ break;
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+
+ return ret;
+}
+
+static long
+uvc_v4l2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return video_usercopy(file, cmd, arg, uvc_v4l2_do_ioctl);
+}
+
+static int
+uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct uvc_device *uvc = video_get_drvdata(vdev);
+
+ return uvc_queue_mmap(&uvc->video.queue, vma);
+}
+
+static unsigned int
+uvc_v4l2_poll(struct file *file, poll_table *wait)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct uvc_device *uvc = video_get_drvdata(vdev);
+ struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
+ unsigned int mask = 0;
+
+ poll_wait(file, &handle->vfh.events->wait, wait);
+ if (v4l2_event_pending(&handle->vfh))
+ mask |= POLLPRI;
+
+ mask |= uvc_queue_poll(&uvc->video.queue, file, wait);
+
+ return mask;
+}
+
+struct v4l2_file_operations uvc_v4l2_fops = {
+ .owner = THIS_MODULE,
+ .open = uvc_v4l2_open,
+ .release = uvc_v4l2_release,
+ .ioctl = uvc_v4l2_ioctl,
+ .mmap = uvc_v4l2_mmap,
+ .poll = uvc_v4l2_poll,
+};
+
diff --git a/drivers/usb/gadget/uvc_video.c b/drivers/usb/gadget/uvc_video.c
new file mode 100644
index 0000000..de8cbc4
--- /dev/null
+++ b/drivers/usb/gadget/uvc_video.c
@@ -0,0 +1,386 @@
+/*
+ * uvc_video.c -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+#include <media/v4l2-dev.h>
+
+#include "uvc.h"
+#include "uvc_queue.h"
+
+/* --------------------------------------------------------------------------
+ * Video codecs
+ */
+
+static int
+uvc_video_encode_header(struct uvc_video *video, struct uvc_buffer *buf,
+ u8 *data, int len)
+{
+ data[0] = 2;
+ data[1] = UVC_STREAM_EOH | video->fid;
+
+ if (buf->buf.bytesused - video->queue.buf_used <= len - 2)
+ data[1] |= UVC_STREAM_EOF;
+
+ return 2;
+}
+
+static int
+uvc_video_encode_data(struct uvc_video *video, struct uvc_buffer *buf,
+ u8 *data, int len)
+{
+ struct uvc_video_queue *queue = &video->queue;
+ unsigned int nbytes;
+ void *mem;
+
+ /* Copy video data to the USB buffer. */
+ mem = queue->mem + buf->buf.m.offset + queue->buf_used;
+ nbytes = min((unsigned int)len, buf->buf.bytesused - queue->buf_used);
+
+ memcpy(data, mem, nbytes);
+ queue->buf_used += nbytes;
+
+ return nbytes;
+}
+
+static void
+uvc_video_encode_bulk(struct usb_request *req, struct uvc_video *video,
+ struct uvc_buffer *buf)
+{
+ void *mem = req->buf;
+ int len = video->req_size;
+ int ret;
+
+ /* Add a header at the beginning of the payload. */
+ if (video->payload_size == 0) {
+ ret = uvc_video_encode_header(video, buf, mem, len);
+ video->payload_size += ret;
+ mem += ret;
+ len -= ret;
+ }
+
+ /* Process video data. */
+ len = min((int)(video->max_payload_size - video->payload_size), len);
+ ret = uvc_video_encode_data(video, buf, mem, len);
+
+ video->payload_size += ret;
+ len -= ret;
+
+ req->length = video->req_size - len;
+ req->zero = video->payload_size == video->max_payload_size;
+
+ if (buf->buf.bytesused == video->queue.buf_used) {
+ video->queue.buf_used = 0;
+ buf->state = UVC_BUF_STATE_DONE;
+ uvc_queue_next_buffer(&video->queue, buf);
+ video->fid ^= UVC_STREAM_FID;
+
+ video->payload_size = 0;
+ }
+
+ if (video->payload_size == video->max_payload_size ||
+ buf->buf.bytesused == video->queue.buf_used)
+ video->payload_size = 0;
+}
+
+static void
+uvc_video_encode_isoc(struct usb_request *req, struct uvc_video *video,
+ struct uvc_buffer *buf)
+{
+ void *mem = req->buf;
+ int len = video->req_size;
+ int ret;
+
+ /* Add the header. */
+ ret = uvc_video_encode_header(video, buf, mem, len);
+ mem += ret;
+ len -= ret;
+
+ /* Process video data. */
+ ret = uvc_video_encode_data(video, buf, mem, len);
+ len -= ret;
+
+ req->length = video->req_size - len;
+
+ if (buf->buf.bytesused == video->queue.buf_used) {
+ video->queue.buf_used = 0;
+ buf->state = UVC_BUF_STATE_DONE;
+ uvc_queue_next_buffer(&video->queue, buf);
+ video->fid ^= UVC_STREAM_FID;
+ }
+}
+
+/* --------------------------------------------------------------------------
+ * Request handling
+ */
+
+/*
+ * I somehow feel that synchronisation won't be easy to achieve here. We have
+ * three events that control USB requests submission:
+ *
+ * - USB request completion: the completion handler will resubmit the request
+ * if a video buffer is available.
+ *
+ * - USB interface setting selection: in response to a SET_INTERFACE request,
+ * the handler will start streaming if a video buffer is available and if
+ * video is not currently streaming.
+ *
+ * - V4L2 buffer queueing: the driver will start streaming if video is not
+ * currently streaming.
+ *
+ * Race conditions between those 3 events might lead to deadlocks or other
+ * nasty side effects.
+ *
+ * The "video currently streaming" condition can't be detected by the irqqueue
+ * being empty, as a request can still be in flight. A separate "queue paused"
+ * flag is thus needed.
+ *
+ * The paused flag will be set when we try to retrieve the irqqueue head if the
+ * queue is empty, and cleared when we queue a buffer.
+ *
+ * The USB request completion handler will get the buffer at the irqqueue head
+ * under protection of the queue spinlock. If the queue is empty, the streaming
+ * paused flag will be set. Right after releasing the spinlock a userspace
+ * application can queue a buffer. The flag will then cleared, and the ioctl
+ * handler will restart the video stream.
+ */
+static void
+uvc_video_complete(struct usb_ep *ep, struct usb_request *req)
+{
+ struct uvc_video *video = req->context;
+ struct uvc_buffer *buf;
+ unsigned long flags;
+ int ret;
+
+ switch (req->status) {
+ case 0:
+ break;
+
+ case -ESHUTDOWN:
+ printk(KERN_INFO "VS request cancelled.\n");
+ goto requeue;
+
+ default:
+ printk(KERN_INFO "VS request completed with status %d.\n",
+ req->status);
+ goto requeue;
+ }
+
+ spin_lock_irqsave(&video->queue.irqlock, flags);
+ buf = uvc_queue_head(&video->queue);
+ if (buf == NULL) {
+ spin_unlock_irqrestore(&video->queue.irqlock, flags);
+ goto requeue;
+ }
+
+ video->encode(req, video, buf);
+
+ if ((ret = usb_ep_queue(ep, req, GFP_ATOMIC)) < 0) {
+ printk(KERN_INFO "Failed to queue request (%d).\n", ret);
+ usb_ep_set_halt(ep);
+ spin_unlock_irqrestore(&video->queue.irqlock, flags);
+ goto requeue;
+ }
+ spin_unlock_irqrestore(&video->queue.irqlock, flags);
+
+ return;
+
+requeue:
+ spin_lock_irqsave(&video->req_lock, flags);
+ list_add_tail(&req->list, &video->req_free);
+ spin_unlock_irqrestore(&video->req_lock, flags);
+}
+
+static int
+uvc_video_free_requests(struct uvc_video *video)
+{
+ unsigned int i;
+
+ for (i = 0; i < UVC_NUM_REQUESTS; ++i) {
+ if (video->req[i]) {
+ usb_ep_free_request(video->ep, video->req[i]);
+ video->req[i] = NULL;
+ }
+
+ if (video->req_buffer[i]) {
+ kfree(video->req_buffer[i]);
+ video->req_buffer[i] = NULL;
+ }
+ }
+
+ INIT_LIST_HEAD(&video->req_free);
+ video->req_size = 0;
+ return 0;
+}
+
+static int
+uvc_video_alloc_requests(struct uvc_video *video)
+{
+ unsigned int i;
+ int ret = -ENOMEM;
+
+ BUG_ON(video->req_size);
+
+ for (i = 0; i < UVC_NUM_REQUESTS; ++i) {
+ video->req_buffer[i] = kmalloc(video->ep->maxpacket, GFP_KERNEL);
+ if (video->req_buffer[i] == NULL)
+ goto error;
+
+ video->req[i] = usb_ep_alloc_request(video->ep, GFP_KERNEL);
+ if (video->req[i] == NULL)
+ goto error;
+
+ video->req[i]->buf = video->req_buffer[i];
+ video->req[i]->length = 0;
+ video->req[i]->dma = DMA_ADDR_INVALID;
+ video->req[i]->complete = uvc_video_complete;
+ video->req[i]->context = video;
+
+ list_add_tail(&video->req[i]->list, &video->req_free);
+ }
+
+ video->req_size = video->ep->maxpacket;
+ return 0;
+
+error:
+ uvc_video_free_requests(video);
+ return ret;
+}
+
+/* --------------------------------------------------------------------------
+ * Video streaming
+ */
+
+/*
+ * uvc_video_pump - Pump video data into the USB requests
+ *
+ * This function fills the available USB requests (listed in req_free) with
+ * video data from the queued buffers.
+ */
+int
+uvc_video_pump(struct uvc_video *video)
+{
+ struct usb_request *req;
+ struct uvc_buffer *buf;
+ unsigned long flags;
+ int ret;
+
+ /* FIXME TODO Race between uvc_video_pump and requests completion
+ * handler ???
+ */
+
+ while (1) {
+ /* Retrieve the first available USB request, protected by the
+ * request lock.
+ */
+ spin_lock_irqsave(&video->req_lock, flags);
+ if (list_empty(&video->req_free)) {
+ spin_unlock_irqrestore(&video->req_lock, flags);
+ return 0;
+ }
+ req = list_first_entry(&video->req_free, struct usb_request,
+ list);
+ list_del(&req->list);
+ spin_unlock_irqrestore(&video->req_lock, flags);
+
+ /* Retrieve the first available video buffer and fill the
+ * request, protected by the video queue irqlock.
+ */
+ spin_lock_irqsave(&video->queue.irqlock, flags);
+ buf = uvc_queue_head(&video->queue);
+ if (buf == NULL) {
+ spin_unlock_irqrestore(&video->queue.irqlock, flags);
+ break;
+ }
+
+ video->encode(req, video, buf);
+
+ /* Queue the USB request */
+ if ((ret = usb_ep_queue(video->ep, req, GFP_KERNEL)) < 0) {
+ printk(KERN_INFO "Failed to queue request (%d)\n", ret);
+ usb_ep_set_halt(video->ep);
+ spin_unlock_irqrestore(&video->queue.irqlock, flags);
+ break;
+ }
+ spin_unlock_irqrestore(&video->queue.irqlock, flags);
+ }
+
+ spin_lock_irqsave(&video->req_lock, flags);
+ list_add_tail(&req->list, &video->req_free);
+ spin_unlock_irqrestore(&video->req_lock, flags);
+ return 0;
+}
+
+/*
+ * Enable or disable the video stream.
+ */
+int
+uvc_video_enable(struct uvc_video *video, int enable)
+{
+ unsigned int i;
+ int ret;
+
+ if (video->ep == NULL) {
+ printk(KERN_INFO "Video enable failed, device is "
+ "uninitialized.\n");
+ return -ENODEV;
+ }
+
+ if (!enable) {
+ for (i = 0; i < UVC_NUM_REQUESTS; ++i)
+ usb_ep_dequeue(video->ep, video->req[i]);
+
+ uvc_video_free_requests(video);
+ uvc_queue_enable(&video->queue, 0);
+ return 0;
+ }
+
+ if ((ret = uvc_queue_enable(&video->queue, 1)) < 0)
+ return ret;
+
+ if ((ret = uvc_video_alloc_requests(video)) < 0)
+ return ret;
+
+ if (video->max_payload_size) {
+ video->encode = uvc_video_encode_bulk;
+ video->payload_size = 0;
+ } else
+ video->encode = uvc_video_encode_isoc;
+
+ return uvc_video_pump(video);
+}
+
+/*
+ * Initialize the UVC video stream.
+ */
+int
+uvc_video_init(struct uvc_video *video)
+{
+ INIT_LIST_HEAD(&video->req_free);
+ spin_lock_init(&video->req_lock);
+
+ video->fcc = V4L2_PIX_FMT_YUYV;
+ video->bpp = 16;
+ video->width = 320;
+ video->height = 240;
+ video->imagesize = 320 * 240 * 2;
+
+ /* Initialize the video buffers queue. */
+ uvc_queue_init(&video->queue, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ return 0;
+}
+
diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c
new file mode 100644
index 0000000..417fd68
--- /dev/null
+++ b/drivers/usb/gadget/webcam.c
@@ -0,0 +1,399 @@
+/*
+ * webcam.c -- USB webcam gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/usb/video.h>
+
+#include "f_uvc.h"
+
+/*
+ * Kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+#include "composite.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
+#include "f_uvc.c"
+#include "uvc_queue.c"
+#include "uvc_v4l2.c"
+#include "uvc_video.c"
+
+/* --------------------------------------------------------------------------
+ * Device descriptor
+ */
+
+#define WEBCAM_VENDOR_ID 0x1d6b /* Linux Foundation */
+#define WEBCAM_PRODUCT_ID 0x0102 /* Webcam A/V gadget */
+#define WEBCAM_DEVICE_BCD 0x0010 /* 0.10 */
+
+static char webcam_vendor_label[] = "Linux Foundation";
+static char webcam_product_label[] = "Webcam gadget";
+static char webcam_config_label[] = "Video";
+
+/* string IDs are assigned dynamically */
+
+#define STRING_MANUFACTURER_IDX 0
+#define STRING_PRODUCT_IDX 1
+#define STRING_DESCRIPTION_IDX 2
+
+static struct usb_string webcam_strings[] = {
+ [STRING_MANUFACTURER_IDX].s = webcam_vendor_label,
+ [STRING_PRODUCT_IDX].s = webcam_product_label,
+ [STRING_DESCRIPTION_IDX].s = webcam_config_label,
+ { }
+};
+
+static struct usb_gadget_strings webcam_stringtab = {
+ .language = 0x0409, /* en-us */
+ .strings = webcam_strings,
+};
+
+static struct usb_gadget_strings *webcam_device_strings[] = {
+ &webcam_stringtab,
+ NULL,
+};
+
+static struct usb_device_descriptor webcam_device_descriptor = {
+ .bLength = USB_DT_DEVICE_SIZE,
+ .bDescriptorType = USB_DT_DEVICE,
+ .bcdUSB = cpu_to_le16(0x0200),
+ .bDeviceClass = USB_CLASS_MISC,
+ .bDeviceSubClass = 0x02,
+ .bDeviceProtocol = 0x01,
+ .bMaxPacketSize0 = 0, /* dynamic */
+ .idVendor = cpu_to_le16(WEBCAM_VENDOR_ID),
+ .idProduct = cpu_to_le16(WEBCAM_PRODUCT_ID),
+ .bcdDevice = cpu_to_le16(WEBCAM_DEVICE_BCD),
+ .iManufacturer = 0, /* dynamic */
+ .iProduct = 0, /* dynamic */
+ .iSerialNumber = 0, /* dynamic */
+ .bNumConfigurations = 0, /* dynamic */
+};
+
+DECLARE_UVC_HEADER_DESCRIPTOR(1);
+
+static const struct UVC_HEADER_DESCRIPTOR(1) uvc_control_header = {
+ .bLength = UVC_DT_HEADER_SIZE(1),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_HEADER,
+ .bcdUVC = cpu_to_le16(0x0100),
+ .wTotalLength = 0, /* dynamic */
+ .dwClockFrequency = cpu_to_le32(48000000),
+ .bInCollection = 0, /* dynamic */
+ .baInterfaceNr[0] = 0, /* dynamic */
+};
+
+static const struct uvc_camera_terminal_descriptor uvc_camera_terminal = {
+ .bLength = UVC_DT_CAMERA_TERMINAL_SIZE(3),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_INPUT_TERMINAL,
+ .bTerminalID = 1,
+ .wTerminalType = cpu_to_le16(0x0201),
+ .bAssocTerminal = 0,
+ .iTerminal = 0,
+ .wObjectiveFocalLengthMin = cpu_to_le16(0),
+ .wObjectiveFocalLengthMax = cpu_to_le16(0),
+ .wOcularFocalLength = cpu_to_le16(0),
+ .bControlSize = 3,
+ .bmControls[0] = 2,
+ .bmControls[1] = 0,
+ .bmControls[2] = 0,
+};
+
+static const struct uvc_processing_unit_descriptor uvc_processing = {
+ .bLength = UVC_DT_PROCESSING_UNIT_SIZE(2),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_PROCESSING_UNIT,
+ .bUnitID = 2,
+ .bSourceID = 1,
+ .wMaxMultiplier = cpu_to_le16(16*1024),
+ .bControlSize = 2,
+ .bmControls[0] = 1,
+ .bmControls[1] = 0,
+ .iProcessing = 0,
+};
+
+static const struct uvc_output_terminal_descriptor uvc_output_terminal = {
+ .bLength = UVC_DT_OUTPUT_TERMINAL_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_OUTPUT_TERMINAL,
+ .bTerminalID = 3,
+ .wTerminalType = cpu_to_le16(0x0101),
+ .bAssocTerminal = 0,
+ .bSourceID = 2,
+ .iTerminal = 0,
+};
+
+DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(1, 2);
+
+static const struct UVC_INPUT_HEADER_DESCRIPTOR(1, 2) uvc_input_header = {
+ .bLength = UVC_DT_INPUT_HEADER_SIZE(1, 2),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_INPUT_HEADER,
+ .bNumFormats = 2,
+ .wTotalLength = 0, /* dynamic */
+ .bEndpointAddress = 0, /* dynamic */
+ .bmInfo = 0,
+ .bTerminalLink = 3,
+ .bStillCaptureMethod = 0,
+ .bTriggerSupport = 0,
+ .bTriggerUsage = 0,
+ .bControlSize = 1,
+ .bmaControls[0][0] = 0,
+ .bmaControls[1][0] = 4,
+};
+
+static const struct uvc_format_uncompressed uvc_format_yuv = {
+ .bLength = UVC_DT_FORMAT_UNCOMPRESSED_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_FORMAT_UNCOMPRESSED,
+ .bFormatIndex = 1,
+ .bNumFrameDescriptors = 2,
+ .guidFormat =
+ { 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00,
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71},
+ .bBitsPerPixel = 16,
+ .bDefaultFrameIndex = 1,
+ .bAspectRatioX = 0,
+ .bAspectRatioY = 0,
+ .bmInterfaceFlags = 0,
+ .bCopyProtect = 0,
+};
+
+DECLARE_UVC_FRAME_UNCOMPRESSED(1);
+DECLARE_UVC_FRAME_UNCOMPRESSED(3);
+
+static const struct UVC_FRAME_UNCOMPRESSED(3) uvc_frame_yuv_360p = {
+ .bLength = UVC_DT_FRAME_UNCOMPRESSED_SIZE(3),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_FRAME_UNCOMPRESSED,
+ .bFrameIndex = 1,
+ .bmCapabilities = 0,
+ .wWidth = cpu_to_le16(640),
+ .wHeight = cpu_to_le16(360),
+ .dwMinBitRate = cpu_to_le32(18432000),
+ .dwMaxBitRate = cpu_to_le32(55296000),
+ .dwMaxVideoFrameBufferSize = cpu_to_le32(460800),
+ .dwDefaultFrameInterval = cpu_to_le32(666666),
+ .bFrameIntervalType = 3,
+ .dwFrameInterval[0] = cpu_to_le32(666666),
+ .dwFrameInterval[1] = cpu_to_le32(1000000),
+ .dwFrameInterval[2] = cpu_to_le32(5000000),
+};
+
+static const struct UVC_FRAME_UNCOMPRESSED(1) uvc_frame_yuv_720p = {
+ .bLength = UVC_DT_FRAME_UNCOMPRESSED_SIZE(1),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_FRAME_UNCOMPRESSED,
+ .bFrameIndex = 2,
+ .bmCapabilities = 0,
+ .wWidth = cpu_to_le16(1280),
+ .wHeight = cpu_to_le16(720),
+ .dwMinBitRate = cpu_to_le32(29491200),
+ .dwMaxBitRate = cpu_to_le32(29491200),
+ .dwMaxVideoFrameBufferSize = cpu_to_le32(1843200),
+ .dwDefaultFrameInterval = cpu_to_le32(5000000),
+ .bFrameIntervalType = 1,
+ .dwFrameInterval[0] = cpu_to_le32(5000000),
+};
+
+static const struct uvc_format_mjpeg uvc_format_mjpg = {
+ .bLength = UVC_DT_FORMAT_MJPEG_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_FORMAT_MJPEG,
+ .bFormatIndex = 2,
+ .bNumFrameDescriptors = 2,
+ .bmFlags = 0,
+ .bDefaultFrameIndex = 1,
+ .bAspectRatioX = 0,
+ .bAspectRatioY = 0,
+ .bmInterfaceFlags = 0,
+ .bCopyProtect = 0,
+};
+
+DECLARE_UVC_FRAME_MJPEG(1);
+DECLARE_UVC_FRAME_MJPEG(3);
+
+static const struct UVC_FRAME_MJPEG(3) uvc_frame_mjpg_360p = {
+ .bLength = UVC_DT_FRAME_MJPEG_SIZE(3),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_FRAME_MJPEG,
+ .bFrameIndex = 1,
+ .bmCapabilities = 0,
+ .wWidth = cpu_to_le16(640),
+ .wHeight = cpu_to_le16(360),
+ .dwMinBitRate = cpu_to_le32(18432000),
+ .dwMaxBitRate = cpu_to_le32(55296000),
+ .dwMaxVideoFrameBufferSize = cpu_to_le32(460800),
+ .dwDefaultFrameInterval = cpu_to_le32(666666),
+ .bFrameIntervalType = 3,
+ .dwFrameInterval[0] = cpu_to_le32(666666),
+ .dwFrameInterval[1] = cpu_to_le32(1000000),
+ .dwFrameInterval[2] = cpu_to_le32(5000000),
+};
+
+static const struct UVC_FRAME_MJPEG(1) uvc_frame_mjpg_720p = {
+ .bLength = UVC_DT_FRAME_MJPEG_SIZE(1),
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_FRAME_MJPEG,
+ .bFrameIndex = 2,
+ .bmCapabilities = 0,
+ .wWidth = cpu_to_le16(1280),
+ .wHeight = cpu_to_le16(720),
+ .dwMinBitRate = cpu_to_le32(29491200),
+ .dwMaxBitRate = cpu_to_le32(29491200),
+ .dwMaxVideoFrameBufferSize = cpu_to_le32(1843200),
+ .dwDefaultFrameInterval = cpu_to_le32(5000000),
+ .bFrameIntervalType = 1,
+ .dwFrameInterval[0] = cpu_to_le32(5000000),
+};
+
+static const struct uvc_color_matching_descriptor uvc_color_matching = {
+ .bLength = UVC_DT_COLOR_MATCHING_SIZE,
+ .bDescriptorType = USB_DT_CS_INTERFACE,
+ .bDescriptorSubType = UVC_DT_COLOR_MATCHING,
+ .bColorPrimaries = 1,
+ .bTransferCharacteristics = 1,
+ .bMatrixCoefficients = 4,
+};
+
+static const struct uvc_descriptor_header * const uvc_control_cls[] = {
+ (const struct uvc_descriptor_header *) &uvc_control_header,
+ (const struct uvc_descriptor_header *) &uvc_camera_terminal,
+ (const struct uvc_descriptor_header *) &uvc_processing,
+ (const struct uvc_descriptor_header *) &uvc_output_terminal,
+ NULL,
+};
+
+static const struct uvc_descriptor_header * const uvc_fs_streaming_cls[] = {
+ (const struct uvc_descriptor_header *) &uvc_input_header,
+ (const struct uvc_descriptor_header *) &uvc_format_yuv,
+ (const struct uvc_descriptor_header *) &uvc_frame_yuv_360p,
+ (const struct uvc_descriptor_header *) &uvc_frame_yuv_720p,
+ (const struct uvc_descriptor_header *) &uvc_format_mjpg,
+ (const struct uvc_descriptor_header *) &uvc_frame_mjpg_360p,
+ (const struct uvc_descriptor_header *) &uvc_frame_mjpg_720p,
+ (const struct uvc_descriptor_header *) &uvc_color_matching,
+ NULL,
+};
+
+static const struct uvc_descriptor_header * const uvc_hs_streaming_cls[] = {
+ (const struct uvc_descriptor_header *) &uvc_input_header,
+ (const struct uvc_descriptor_header *) &uvc_format_yuv,
+ (const struct uvc_descriptor_header *) &uvc_frame_yuv_360p,
+ (const struct uvc_descriptor_header *) &uvc_frame_yuv_720p,
+ (const struct uvc_descriptor_header *) &uvc_format_mjpg,
+ (const struct uvc_descriptor_header *) &uvc_frame_mjpg_360p,
+ (const struct uvc_descriptor_header *) &uvc_frame_mjpg_720p,
+ (const struct uvc_descriptor_header *) &uvc_color_matching,
+ NULL,
+};
+
+/* --------------------------------------------------------------------------
+ * USB configuration
+ */
+
+static int __init
+webcam_config_bind(struct usb_configuration *c)
+{
+ return uvc_bind_config(c, uvc_control_cls, uvc_fs_streaming_cls,
+ uvc_hs_streaming_cls);
+}
+
+static struct usb_configuration webcam_config_driver = {
+ .label = webcam_config_label,
+ .bind = webcam_config_bind,
+ .bConfigurationValue = 1,
+ .iConfiguration = 0, /* dynamic */
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+ .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2,
+};
+
+static int /* __init_or_exit */
+webcam_unbind(struct usb_composite_dev *cdev)
+{
+ return 0;
+}
+
+static int __init
+webcam_bind(struct usb_composite_dev *cdev)
+{
+ int ret;
+
+ /* Allocate string descriptor numbers ... note that string contents
+ * can be overridden by the composite_dev glue.
+ */
+ if ((ret = usb_string_id(cdev)) < 0)
+ goto error;
+ webcam_strings[STRING_MANUFACTURER_IDX].id = ret;
+ webcam_device_descriptor.iManufacturer = ret;
+
+ if ((ret = usb_string_id(cdev)) < 0)
+ goto error;
+ webcam_strings[STRING_PRODUCT_IDX].id = ret;
+ webcam_device_descriptor.iProduct = ret;
+
+ if ((ret = usb_string_id(cdev)) < 0)
+ goto error;
+ webcam_strings[STRING_DESCRIPTION_IDX].id = ret;
+ webcam_config_driver.iConfiguration = ret;
+
+ /* Register our configuration. */
+ if ((ret = usb_add_config(cdev, &webcam_config_driver)) < 0)
+ goto error;
+
+ INFO(cdev, "Webcam Video Gadget\n");
+ return 0;
+
+error:
+ webcam_unbind(cdev);
+ return ret;
+}
+
+/* --------------------------------------------------------------------------
+ * Driver
+ */
+
+static struct usb_composite_driver webcam_driver = {
+ .name = "g_webcam",
+ .dev = &webcam_device_descriptor,
+ .strings = webcam_device_strings,
+ .bind = webcam_bind,
+ .unbind = webcam_unbind,
+};
+
+static int __init
+webcam_init(void)
+{
+ return usb_composite_register(&webcam_driver);
+}
+
+static void __exit
+webcam_cleanup(void)
+{
+ usb_composite_unregister(&webcam_driver);
+}
+
+module_init(webcam_init);
+module_exit(webcam_cleanup);
+
+MODULE_AUTHOR("Laurent Pinchart");
+MODULE_DESCRIPTION("Webcam Video Gadget");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1.0");
+
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 8d3df03..f865be2 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -207,6 +207,21 @@
To compile this driver as a module, choose M here: the
module will be called ohci-hcd.
+config USB_OHCI_HCD_OMAP1
+ bool "OHCI support for OMAP1/2 chips"
+ depends on USB_OHCI_HCD && (ARCH_OMAP1 || ARCH_OMAP2)
+ default y
+ ---help---
+ Enables support for the OHCI controller on OMAP1/2 chips.
+
+config USB_OHCI_HCD_OMAP3
+ bool "OHCI support for OMAP3 and later chips"
+ depends on USB_OHCI_HCD && (ARCH_OMAP3 || ARCH_OMAP4)
+ default y
+ ---help---
+ Enables support for the on-chip OHCI controller on
+ OMAP3 and later chips.
+
config USB_OHCI_HCD_PPC_SOC
bool "OHCI support for on-chip PPC USB controller"
depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx)
diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c
index e3a74e7..faa6174 100644
--- a/drivers/usb/host/ehci-au1xxx.c
+++ b/drivers/usb/host/ehci-au1xxx.c
@@ -69,6 +69,15 @@
au_sync();
}
+static int au1xxx_ehci_setup(struct usb_hcd *hcd)
+{
+ struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+ int ret = ehci_init(hcd);
+
+ ehci->need_io_watchdog = 0;
+ return ret;
+}
+
static const struct hc_driver ehci_au1xxx_hc_driver = {
.description = hcd_name,
.product_desc = "Au1xxx EHCI",
@@ -86,7 +95,7 @@
* FIXME -- ehci_init() doesn't do enough here.
* See ehci-ppc-soc for a complete implementation.
*/
- .reset = ehci_init,
+ .reset = au1xxx_ehci_setup,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
@@ -215,26 +224,17 @@
msleep(10);
/* Root hub was already suspended. Disable irq emission and
- * mark HW unaccessible, bail out if RH has been resumed. Use
- * the spinlock to properly synchronize with possible pending
- * RH suspend or resume activity.
- *
- * This is still racy as hcd->state is manipulated outside of
- * any locks =P But that will be a different fix.
+ * mark HW unaccessible. The PM and USB cores make sure that
+ * the root hub is either suspended or stopped.
*/
spin_lock_irqsave(&ehci->lock, flags);
- if (hcd->state != HC_STATE_SUSPENDED) {
- rc = -EINVAL;
- goto bail;
- }
+ ehci_prepare_ports_for_controller_suspend(ehci);
ehci_writel(ehci, 0, &ehci->regs->intr_enable);
(void)ehci_readl(ehci, &ehci->regs->intr_enable);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
au1xxx_stop_ehc();
-
-bail:
spin_unlock_irqrestore(&ehci->lock, flags);
// could save FLADJ in case of Vaux power loss
@@ -264,6 +264,7 @@
if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) {
int mask = INTR_MASK;
+ ehci_prepare_ports_for_controller_resume(ehci);
if (!hcd->self.root_hub->do_remote_wakeup)
mask &= ~STS_PCD;
ehci_writel(ehci, mask, &ehci->regs->intr_enable);
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 0e26aa1..5cd967d 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -313,6 +313,7 @@
struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
void __iomem *non_ehci = hcd->regs;
+ ehci_prepare_ports_for_controller_suspend(hcd_to_ehci(hcd));
if (!fsl_deep_sleep())
return 0;
@@ -327,6 +328,7 @@
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
void __iomem *non_ehci = hcd->regs;
+ ehci_prepare_ports_for_controller_resume(ehci);
if (!fsl_deep_sleep())
return 0;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 13ead00..ef3e88f 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -31,13 +31,12 @@
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/moduleparam.h>
#include <linux/dma-mapping.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
-#include "../core/hcd.h"
-
#include <asm/byteorder.h>
#include <asm/io.h>
#include <asm/irq.h>
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index c7178bc..e7d3d8d 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -106,12 +106,75 @@
ehci->owned_ports = 0;
}
+static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
+ bool suspending)
+{
+ int port;
+ u32 temp;
+
+ /* If remote wakeup is enabled for the root hub but disabled
+ * for the controller, we must adjust all the port wakeup flags
+ * when the controller is suspended or resumed. In all other
+ * cases they don't need to be changed.
+ */
+ if (!ehci_to_hcd(ehci)->self.root_hub->do_remote_wakeup ||
+ device_may_wakeup(ehci_to_hcd(ehci)->self.controller))
+ return;
+
+ /* clear phy low-power mode before changing wakeup flags */
+ if (ehci->has_hostpc) {
+ port = HCS_N_PORTS(ehci->hcs_params);
+ while (port--) {
+ u32 __iomem *hostpc_reg;
+
+ hostpc_reg = (u32 __iomem *)((u8 *) ehci->regs
+ + HOSTPC0 + 4 * port);
+ temp = ehci_readl(ehci, hostpc_reg);
+ ehci_writel(ehci, temp & ~HOSTPC_PHCD, hostpc_reg);
+ }
+ msleep(5);
+ }
+
+ port = HCS_N_PORTS(ehci->hcs_params);
+ while (port--) {
+ u32 __iomem *reg = &ehci->regs->port_status[port];
+ u32 t1 = ehci_readl(ehci, reg) & ~PORT_RWC_BITS;
+ u32 t2 = t1 & ~PORT_WAKE_BITS;
+
+ /* If we are suspending the controller, clear the flags.
+ * If we are resuming the controller, set the wakeup flags.
+ */
+ if (!suspending) {
+ if (t1 & PORT_CONNECT)
+ t2 |= PORT_WKOC_E | PORT_WKDISC_E;
+ else
+ t2 |= PORT_WKOC_E | PORT_WKCONN_E;
+ }
+ ehci_vdbg(ehci, "port %d, %08x -> %08x\n",
+ port + 1, t1, t2);
+ ehci_writel(ehci, t2, reg);
+ }
+
+ /* enter phy low-power mode again */
+ if (ehci->has_hostpc) {
+ port = HCS_N_PORTS(ehci->hcs_params);
+ while (port--) {
+ u32 __iomem *hostpc_reg;
+
+ hostpc_reg = (u32 __iomem *)((u8 *) ehci->regs
+ + HOSTPC0 + 4 * port);
+ temp = ehci_readl(ehci, hostpc_reg);
+ ehci_writel(ehci, temp | HOSTPC_PHCD, hostpc_reg);
+ }
+ }
+}
+
static int ehci_bus_suspend (struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
int port;
int mask;
- u32 __iomem *hostpc_reg = NULL;
+ int changed;
ehci_dbg(ehci, "suspend root hub\n");
@@ -155,15 +218,13 @@
*/
ehci->bus_suspended = 0;
ehci->owned_ports = 0;
+ changed = 0;
port = HCS_N_PORTS(ehci->hcs_params);
while (port--) {
u32 __iomem *reg = &ehci->regs->port_status [port];
u32 t1 = ehci_readl(ehci, reg) & ~PORT_RWC_BITS;
- u32 t2 = t1;
+ u32 t2 = t1 & ~PORT_WAKE_BITS;
- if (ehci->has_hostpc)
- hostpc_reg = (u32 __iomem *)((u8 *)ehci->regs
- + HOSTPC0 + 4 * (port & 0xff));
/* keep track of which ports we suspend */
if (t1 & PORT_OWNER)
set_bit(port, &ehci->owned_ports);
@@ -172,40 +233,45 @@
set_bit(port, &ehci->bus_suspended);
}
- /* enable remote wakeup on all ports */
+ /* enable remote wakeup on all ports, if told to do so */
if (hcd->self.root_hub->do_remote_wakeup) {
/* only enable appropriate wake bits, otherwise the
* hardware can not go phy low power mode. If a race
* condition happens here(connection change during bits
* set), the port change detection will finally fix it.
*/
- if (t1 & PORT_CONNECT) {
+ if (t1 & PORT_CONNECT)
t2 |= PORT_WKOC_E | PORT_WKDISC_E;
- t2 &= ~PORT_WKCONN_E;
- } else {
+ else
t2 |= PORT_WKOC_E | PORT_WKCONN_E;
- t2 &= ~PORT_WKDISC_E;
- }
- } else
- t2 &= ~PORT_WAKE_BITS;
+ }
if (t1 != t2) {
ehci_vdbg (ehci, "port %d, %08x -> %08x\n",
port + 1, t1, t2);
ehci_writel(ehci, t2, reg);
- if (hostpc_reg) {
- u32 t3;
+ changed = 1;
+ }
+ }
- spin_unlock_irq(&ehci->lock);
- msleep(5);/* 5ms for HCD enter low pwr mode */
- spin_lock_irq(&ehci->lock);
- t3 = ehci_readl(ehci, hostpc_reg);
- ehci_writel(ehci, t3 | HOSTPC_PHCD, hostpc_reg);
- t3 = ehci_readl(ehci, hostpc_reg);
- ehci_dbg(ehci, "Port%d phy low pwr mode %s\n",
+ if (changed && ehci->has_hostpc) {
+ spin_unlock_irq(&ehci->lock);
+ msleep(5); /* 5 ms for HCD to enter low-power mode */
+ spin_lock_irq(&ehci->lock);
+
+ port = HCS_N_PORTS(ehci->hcs_params);
+ while (port--) {
+ u32 __iomem *hostpc_reg;
+ u32 t3;
+
+ hostpc_reg = (u32 __iomem *)((u8 *) ehci->regs
+ + HOSTPC0 + 4 * port);
+ t3 = ehci_readl(ehci, hostpc_reg);
+ ehci_writel(ehci, t3 | HOSTPC_PHCD, hostpc_reg);
+ t3 = ehci_readl(ehci, hostpc_reg);
+ ehci_dbg(ehci, "Port %d phy low-power mode %s\n",
port, (t3 & HOSTPC_PHCD) ?
"succeeded" : "failed");
- }
}
}
@@ -291,6 +357,25 @@
msleep(8);
spin_lock_irq(&ehci->lock);
+ /* clear phy low-power mode before resume */
+ if (ehci->bus_suspended && ehci->has_hostpc) {
+ i = HCS_N_PORTS(ehci->hcs_params);
+ while (i--) {
+ if (test_bit(i, &ehci->bus_suspended)) {
+ u32 __iomem *hostpc_reg;
+
+ hostpc_reg = (u32 __iomem *)((u8 *) ehci->regs
+ + HOSTPC0 + 4 * i);
+ temp = ehci_readl(ehci, hostpc_reg);
+ ehci_writel(ehci, temp & ~HOSTPC_PHCD,
+ hostpc_reg);
+ }
+ }
+ spin_unlock_irq(&ehci->lock);
+ msleep(5);
+ spin_lock_irq(&ehci->lock);
+ }
+
/* manually resume the ports we suspended during bus_suspend() */
i = HCS_N_PORTS (ehci->hcs_params);
while (i--) {
@@ -659,7 +744,7 @@
* Even if OWNER is set, so the port is owned by the
* companion controller, khubd needs to be able to clear
* the port-change status bits (especially
- * USB_PORT_FEAT_C_CONNECTION).
+ * USB_PORT_STAT_C_CONNECTION).
*/
switch (wValue) {
@@ -675,16 +760,25 @@
goto error;
if (ehci->no_selective_suspend)
break;
- if (temp & PORT_SUSPEND) {
- if ((temp & PORT_PE) == 0)
- goto error;
- /* resume signaling for 20 msec */
- temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS);
- ehci_writel(ehci, temp | PORT_RESUME,
- status_reg);
- ehci->reset_done [wIndex] = jiffies
- + msecs_to_jiffies (20);
+ if (!(temp & PORT_SUSPEND))
+ break;
+ if ((temp & PORT_PE) == 0)
+ goto error;
+
+ /* clear phy low-power mode before resume */
+ if (hostpc_reg) {
+ temp1 = ehci_readl(ehci, hostpc_reg);
+ ehci_writel(ehci, temp1 & ~HOSTPC_PHCD,
+ hostpc_reg);
+ spin_unlock_irqrestore(&ehci->lock, flags);
+ msleep(5);/* wait to leave low-power mode */
+ spin_lock_irqsave(&ehci->lock, flags);
}
+ /* resume signaling for 20 msec */
+ temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS);
+ ehci_writel(ehci, temp | PORT_RESUME, status_reg);
+ ehci->reset_done[wIndex] = jiffies
+ + msecs_to_jiffies(20);
break;
case USB_PORT_FEAT_C_SUSPEND:
clear_bit(wIndex, &ehci->port_c_suspend);
@@ -729,12 +823,12 @@
// wPortChange bits
if (temp & PORT_CSC)
- status |= 1 << USB_PORT_FEAT_C_CONNECTION;
+ status |= USB_PORT_STAT_C_CONNECTION << 16;
if (temp & PORT_PEC)
- status |= 1 << USB_PORT_FEAT_C_ENABLE;
+ status |= USB_PORT_STAT_C_ENABLE << 16;
if ((temp & PORT_OCC) && !ignore_oc){
- status |= 1 << USB_PORT_FEAT_C_OVER_CURRENT;
+ status |= USB_PORT_STAT_C_OVERCURRENT << 16;
/*
* Hubs should disable port power on over-current.
@@ -791,7 +885,7 @@
if ((temp & PORT_RESET)
&& time_after_eq(jiffies,
ehci->reset_done[wIndex])) {
- status |= 1 << USB_PORT_FEAT_C_RESET;
+ status |= USB_PORT_STAT_C_RESET << 16;
ehci->reset_done [wIndex] = 0;
/* force reset to complete */
@@ -833,7 +927,7 @@
*/
if (temp & PORT_CONNECT) {
- status |= 1 << USB_PORT_FEAT_CONNECTION;
+ status |= USB_PORT_STAT_CONNECTION;
// status may be from integrated TT
if (ehci->has_hostpc) {
temp1 = ehci_readl(ehci, hostpc_reg);
@@ -842,11 +936,11 @@
status |= ehci_port_speed(ehci, temp);
}
if (temp & PORT_PE)
- status |= 1 << USB_PORT_FEAT_ENABLE;
+ status |= USB_PORT_STAT_ENABLE;
/* maybe the port was unsuspended without our knowledge */
if (temp & (PORT_SUSPEND|PORT_RESUME)) {
- status |= 1 << USB_PORT_FEAT_SUSPEND;
+ status |= USB_PORT_STAT_SUSPEND;
} else if (test_bit(wIndex, &ehci->suspended_ports)) {
clear_bit(wIndex, &ehci->suspended_ports);
ehci->reset_done[wIndex] = 0;
@@ -855,13 +949,13 @@
}
if (temp & PORT_OC)
- status |= 1 << USB_PORT_FEAT_OVER_CURRENT;
+ status |= USB_PORT_STAT_OVERCURRENT;
if (temp & PORT_RESET)
- status |= 1 << USB_PORT_FEAT_RESET;
+ status |= USB_PORT_STAT_RESET;
if (temp & PORT_POWER)
- status |= 1 << USB_PORT_FEAT_POWER;
+ status |= USB_PORT_STAT_POWER;
if (test_bit(wIndex, &ehci->port_c_suspend))
- status |= 1 << USB_PORT_FEAT_C_SUSPEND;
+ status |= USB_PORT_STAT_C_SUSPEND << 16;
#ifndef VERBOSE_DEBUG
if (status & ~0xffff) /* only if wPortChange is interesting */
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 0cd6c77..5450e62 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -116,6 +116,8 @@
#define OMAP_UHH_DEBUG_CSR (0x44)
/* EHCI Register Set */
+#define EHCI_INSNREG04 (0xA0)
+#define EHCI_INSNREG04_DISABLE_UNSUSPEND (1 << 5)
#define EHCI_INSNREG05_ULPI (0xA4)
#define EHCI_INSNREG05_ULPI_CONTROL_SHIFT 31
#define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT 24
@@ -352,8 +354,8 @@
reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
/* Bypass the TLL module for PHY mode operation */
- if (omap_rev() <= OMAP3430_REV_ES2_1) {
- dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1 \n");
+ if (cpu_is_omap3430() && (omap_rev() <= OMAP3430_REV_ES2_1)) {
+ dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1\n");
if ((omap->port_mode[0] == EHCI_HCD_OMAP_MODE_PHY) ||
(omap->port_mode[1] == EHCI_HCD_OMAP_MODE_PHY) ||
(omap->port_mode[2] == EHCI_HCD_OMAP_MODE_PHY))
@@ -382,6 +384,18 @@
dev_dbg(omap->dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
+ /*
+ * An undocumented "feature" in the OMAP3 EHCI controller,
+ * causes suspended ports to be taken out of suspend when
+ * the USBCMD.Run/Stop bit is cleared (for example when
+ * we do ehci_bus_suspend).
+ * This breaks suspend-resume if the root-hub is allowed
+ * to suspend. Writing 1 to this undocumented register bit
+ * disables this feature and restores normal behavior.
+ */
+ ehci_omap_writel(omap->ehci_base, EHCI_INSNREG04,
+ EHCI_INSNREG04_DISABLE_UNSUSPEND);
+
if ((omap->port_mode[0] == EHCI_HCD_OMAP_MODE_TLL) ||
(omap->port_mode[1] == EHCI_HCD_OMAP_MODE_TLL) ||
(omap->port_mode[2] == EHCI_HCD_OMAP_MODE_TLL)) {
@@ -659,6 +673,9 @@
goto err_add_hcd;
}
+ /* root ports should always stay powered */
+ ehci_port_power(omap->ehci, 1);
+
return 0;
err_add_hcd:
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index ead5f4f..d43d176 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -109,6 +109,9 @@
return retval;
switch (pdev->vendor) {
+ case PCI_VENDOR_ID_NEC:
+ ehci->need_io_watchdog = 0;
+ break;
case PCI_VENDOR_ID_INTEL:
ehci->need_io_watchdog = 0;
if (pdev->device == 0x27cc) {
@@ -284,23 +287,15 @@
msleep(10);
/* Root hub was already suspended. Disable irq emission and
- * mark HW unaccessible, bail out if RH has been resumed. Use
- * the spinlock to properly synchronize with possible pending
- * RH suspend or resume activity.
- *
- * This is still racy as hcd->state is manipulated outside of
- * any locks =P But that will be a different fix.
+ * mark HW unaccessible. The PM and USB cores make sure that
+ * the root hub is either suspended or stopped.
*/
spin_lock_irqsave (&ehci->lock, flags);
- if (hcd->state != HC_STATE_SUSPENDED) {
- rc = -EINVAL;
- goto bail;
- }
+ ehci_prepare_ports_for_controller_suspend(ehci);
ehci_writel(ehci, 0, &ehci->regs->intr_enable);
(void)ehci_readl(ehci, &ehci->regs->intr_enable);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
- bail:
spin_unlock_irqrestore (&ehci->lock, flags);
// could save FLADJ in case of Vaux power loss
@@ -330,6 +325,7 @@
!hibernated) {
int mask = INTR_MASK;
+ ehci_prepare_ports_for_controller_resume(ehci);
if (!hcd->self.root_hub->do_remote_wakeup)
mask &= ~STS_PCD;
ehci_writel(ehci, mask, &ehci->regs->intr_enable);
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 8952177..11a79c4 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -663,7 +663,7 @@
*/
i = urb->num_sgs;
if (len > 0 && i > 0) {
- sg = urb->sg->sg;
+ sg = urb->sg;
buf = sg_dma_address(sg);
/* urb->transfer_buffer_length may be smaller than the
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 556c0b4..650a687 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -536,6 +536,16 @@
/*-------------------------------------------------------------------------*/
+/* Prepare the PORTSC wakeup flags during controller suspend/resume */
+
+#define ehci_prepare_ports_for_controller_suspend(ehci) \
+ ehci_adjust_port_wakeup_flags(ehci, true);
+
+#define ehci_prepare_ports_for_controller_resume(ehci) \
+ ehci_adjust_port_wakeup_flags(ehci, false);
+
+/*-------------------------------------------------------------------------*/
+
#ifdef CONFIG_USB_EHCI_ROOT_HUB_TT
/*
@@ -556,20 +566,20 @@
case 0:
return 0;
case 1:
- return (1<<USB_PORT_FEAT_LOWSPEED);
+ return USB_PORT_STAT_LOW_SPEED;
case 2:
default:
- return (1<<USB_PORT_FEAT_HIGHSPEED);
+ return USB_PORT_STAT_HIGH_SPEED;
}
}
- return (1<<USB_PORT_FEAT_HIGHSPEED);
+ return USB_PORT_STAT_HIGH_SPEED;
}
#else
#define ehci_is_TDI(e) (0)
-#define ehci_port_speed(ehci, portsc) (1<<USB_PORT_FEAT_HIGHSPEED)
+#define ehci_port_speed(ehci, portsc) USB_PORT_STAT_HIGH_SPEED
#endif
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/fhci-dbg.c b/drivers/usb/host/fhci-dbg.c
index e799f86..6fe5500 100644
--- a/drivers/usb/host/fhci-dbg.c
+++ b/drivers/usb/host/fhci-dbg.c
@@ -20,7 +20,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/usb.h>
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
#include "fhci.h"
void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er)
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 15379c6..9045337 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -25,12 +25,12 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include <linux/slab.h>
#include <asm/qe.h>
#include <asm/fsl_gtm.h>
-#include "../core/hcd.h"
#include "fhci.h"
void fhci_start_sof_timer(struct fhci_hcd *fhci)
diff --git a/drivers/usb/host/fhci-hub.c b/drivers/usb/host/fhci-hub.c
index 0cfaedc..348fe62 100644
--- a/drivers/usb/host/fhci-hub.c
+++ b/drivers/usb/host/fhci-hub.c
@@ -22,9 +22,9 @@
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/gpio.h>
#include <asm/qe.h>
-#include "../core/hcd.h"
#include "fhci.h"
/* virtual root hub specific descriptor */
diff --git a/drivers/usb/host/fhci-mem.c b/drivers/usb/host/fhci-mem.c
index 5591bfb..b0b88f5 100644
--- a/drivers/usb/host/fhci-mem.c
+++ b/drivers/usb/host/fhci-mem.c
@@ -21,7 +21,7 @@
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/usb.h>
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
#include "fhci.h"
static void init_td(struct td *td)
diff --git a/drivers/usb/host/fhci-q.c b/drivers/usb/host/fhci-q.c
index f73c923..03be749 100644
--- a/drivers/usb/host/fhci-q.c
+++ b/drivers/usb/host/fhci-q.c
@@ -22,7 +22,7 @@
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/usb.h>
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
#include "fhci.h"
/* maps the hardware error code to the USB error code */
diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c
index ff43747..4f2cbdc 100644
--- a/drivers/usb/host/fhci-sched.c
+++ b/drivers/usb/host/fhci-sched.c
@@ -24,9 +24,9 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <asm/qe.h>
#include <asm/fsl_gtm.h>
-#include "../core/hcd.h"
#include "fhci.h"
static void recycle_frame(struct fhci_usb *usb, struct packet *pkt)
diff --git a/drivers/usb/host/fhci-tds.c b/drivers/usb/host/fhci-tds.c
index 5701347..7be548c 100644
--- a/drivers/usb/host/fhci-tds.c
+++ b/drivers/usb/host/fhci-tds.c
@@ -22,7 +22,7 @@
#include <linux/list.h>
#include <linux/io.h>
#include <linux/usb.h>
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
#include "fhci.h"
#define DUMMY_BD_BUFFER 0xdeadbeef
diff --git a/drivers/usb/host/fhci.h b/drivers/usb/host/fhci.h
index 72dae1c..71c3caa 100644
--- a/drivers/usb/host/fhci.h
+++ b/drivers/usb/host/fhci.h
@@ -20,13 +20,14 @@
#include <linux/kernel.h>
#include <linux/types.h>
+#include <linux/bug.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/kfifo.h>
#include <linux/io.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <asm/qe.h>
-#include "../core/hcd.h"
#define USB_CLOCK 48000000
@@ -515,9 +516,13 @@
static inline void *cq_get(struct kfifo *kfifo)
{
- void *p = NULL;
+ unsigned int sz;
+ void *p;
- kfifo_out(kfifo, (void *)&p, sizeof(p));
+ sz = kfifo_out(kfifo, (void *)&p, sizeof(p));
+ if (sz != sizeof(p))
+ return NULL;
+
return p;
}
diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c
index 8a12f29..ca0e98d 100644
--- a/drivers/usb/host/imx21-hcd.c
+++ b/drivers/usb/host/imx21-hcd.c
@@ -56,8 +56,8 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
-#include "../core/hcd.h"
#include "imx21-hcd.h"
#ifdef DEBUG
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 92de71d..d9e8212 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -65,6 +65,7 @@
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/usb/isp116x.h>
+#include <linux/usb/hcd.h>
#include <linux/platform_device.h>
#include <asm/io.h>
@@ -72,7 +73,6 @@
#include <asm/system.h>
#include <asm/byteorder.h>
-#include "../core/hcd.h"
#include "isp116x.h"
#define DRIVER_VERSION "03 Nov 2005"
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 217fb51..20a0dfe0 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -77,6 +77,7 @@
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/usb/isp1362.h>
+#include <linux/usb/hcd.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/io.h>
@@ -95,7 +96,6 @@
#define STUB_DEBUG_FILE
#endif
-#include "../core/hcd.h"
#include "../core/usb.h"
#include "isp1362.h"
@@ -1265,7 +1265,7 @@
/* don't submit to a dead or disabled port */
if (!((isp1362_hcd->rhport[0] | isp1362_hcd->rhport[1]) &
- (1 << USB_PORT_FEAT_ENABLE)) ||
+ USB_PORT_STAT_ENABLE) ||
!HC_IS_RUNNING(hcd->state)) {
kfree(ep);
retval = -ENODEV;
@@ -2217,7 +2217,7 @@
static void remove_debug_file(struct isp1362_hcd *isp1362_hcd)
{
if (isp1362_hcd->pde)
- remove_proc_entry(proc_filename, 0);
+ remove_proc_entry(proc_filename, NULL);
}
#endif
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 9f01293..dbcafa2 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/io.h>
@@ -21,7 +22,6 @@
#include <asm/unaligned.h>
#include <asm/cacheflush.h>
-#include "../core/hcd.h"
#include "isp1760-hcd.h"
static struct kmem_cache *qtd_cachep;
@@ -111,7 +111,7 @@
u32 ping;
};
-#define ehci_port_speed(priv, portsc) (1 << USB_PORT_FEAT_HIGHSPEED)
+#define ehci_port_speed(priv, portsc) USB_PORT_STAT_HIGH_SPEED
static unsigned int isp1760_readl(__u32 __iomem *regs)
{
@@ -713,12 +713,11 @@
u32 dw3;
dw3 = le32_to_cpu(ptd->dw3);
- if (dw3 & DW3_HALT_BIT)
+ if (dw3 & DW3_HALT_BIT) {
error = -EPIPE;
- if (dw3 & DW3_ERROR_BIT) {
- printk(KERN_ERR "error bit is set in DW3\n");
- error = -EPIPE;
+ if (dw3 & DW3_ERROR_BIT)
+ pr_err("error bit is set in DW3\n");
}
if (dw3 & DW3_QTD_ACTIVE) {
@@ -1923,7 +1922,7 @@
* Even if OWNER is set, so the port is owned by the
* companion controller, khubd needs to be able to clear
* the port-change status bits (especially
- * USB_PORT_FEAT_C_CONNECTION).
+ * USB_PORT_STAT_C_CONNECTION).
*/
switch (wValue) {
@@ -1987,7 +1986,7 @@
/* wPortChange bits */
if (temp & PORT_CSC)
- status |= 1 << USB_PORT_FEAT_C_CONNECTION;
+ status |= USB_PORT_STAT_C_CONNECTION << 16;
/* whoever resumes must GetPortStatus to complete it!! */
@@ -2007,7 +2006,7 @@
/* resume completed? */
else if (time_after_eq(jiffies,
priv->reset_done)) {
- status |= 1 << USB_PORT_FEAT_C_SUSPEND;
+ status |= USB_PORT_STAT_C_SUSPEND << 16;
priv->reset_done = 0;
/* stop resume signaling */
@@ -2031,7 +2030,7 @@
if ((temp & PORT_RESET)
&& time_after_eq(jiffies,
priv->reset_done)) {
- status |= 1 << USB_PORT_FEAT_C_RESET;
+ status |= USB_PORT_STAT_C_RESET << 16;
priv->reset_done = 0;
/* force reset to complete */
@@ -2062,18 +2061,18 @@
printk(KERN_ERR "Warning: PORT_OWNER is set\n");
if (temp & PORT_CONNECT) {
- status |= 1 << USB_PORT_FEAT_CONNECTION;
+ status |= USB_PORT_STAT_CONNECTION;
/* status may be from integrated TT */
status |= ehci_port_speed(priv, temp);
}
if (temp & PORT_PE)
- status |= 1 << USB_PORT_FEAT_ENABLE;
+ status |= USB_PORT_STAT_ENABLE;
if (temp & (PORT_SUSPEND|PORT_RESUME))
- status |= 1 << USB_PORT_FEAT_SUSPEND;
+ status |= USB_PORT_STAT_SUSPEND;
if (temp & PORT_RESET)
- status |= 1 << USB_PORT_FEAT_RESET;
+ status |= USB_PORT_STAT_RESET;
if (temp & PORT_POWER)
- status |= 1 << USB_PORT_FEAT_POWER;
+ status |= USB_PORT_STAT_POWER;
put_unaligned(cpu_to_le32(status), (__le32 *) buf);
break;
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index 4293cfd..8f0259e 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -13,8 +13,8 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/usb/isp1760.h>
+#include <linux/usb/hcd.h>
-#include "../core/hcd.h"
#include "isp1760-hcd.h"
#ifdef CONFIG_PPC_OF
@@ -36,7 +36,7 @@
struct resource memory;
struct of_irq oirq;
int virq;
- u64 res_len;
+ resource_size_t res_len;
int ret;
const unsigned int *prop;
unsigned int devflags = 0;
@@ -45,13 +45,12 @@
if (ret)
return -ENXIO;
- res = request_mem_region(memory.start, memory.end - memory.start + 1,
- dev_name(&dev->dev));
+ res_len = resource_size(&memory);
+
+ res = request_mem_region(memory.start, res_len, dev_name(&dev->dev));
if (!res)
return -EBUSY;
- res_len = memory.end - memory.start + 1;
-
if (of_irq_map_one(dp, 0, &oirq)) {
ret = -ENODEV;
goto release_reg;
@@ -92,7 +91,7 @@
return ret;
release_reg:
- release_mem_region(memory.start, memory.end - memory.start + 1);
+ release_mem_region(memory.start, res_len);
return ret;
}
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index afe59be..fc57655 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -32,6 +32,7 @@
#include <linux/list.h>
#include <linux/usb.h>
#include <linux/usb/otg.h>
+#include <linux/usb/hcd.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/workqueue.h>
@@ -43,7 +44,6 @@
#include <asm/unaligned.h>
#include <asm/byteorder.h>
-#include "../core/hcd.h"
#define DRIVER_AUTHOR "Roman Weissgaerber, David Brownell"
#define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver"
@@ -1006,9 +1006,14 @@
#define PLATFORM_DRIVER ohci_hcd_s3c2410_driver
#endif
-#ifdef CONFIG_ARCH_OMAP
+#ifdef CONFIG_USB_OHCI_HCD_OMAP1
#include "ohci-omap.c"
-#define PLATFORM_DRIVER ohci_hcd_omap_driver
+#define OMAP1_PLATFORM_DRIVER ohci_hcd_omap_driver
+#endif
+
+#ifdef CONFIG_USB_OHCI_HCD_OMAP3
+#include "ohci-omap3.c"
+#define OMAP3_PLATFORM_DRIVER ohci_hcd_omap3_driver
#endif
#ifdef CONFIG_ARCH_LH7A404
@@ -1092,6 +1097,8 @@
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
+ !defined(OMAP1_PLATFORM_DRIVER) && \
+ !defined(OMAP3_PLATFORM_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
!defined(SA1111_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && \
@@ -1133,6 +1140,18 @@
goto error_platform;
#endif
+#ifdef OMAP1_PLATFORM_DRIVER
+ retval = platform_driver_register(&OMAP1_PLATFORM_DRIVER);
+ if (retval < 0)
+ goto error_omap1_platform;
+#endif
+
+#ifdef OMAP3_PLATFORM_DRIVER
+ retval = platform_driver_register(&OMAP3_PLATFORM_DRIVER);
+ if (retval < 0)
+ goto error_omap3_platform;
+#endif
+
#ifdef OF_PLATFORM_DRIVER
retval = of_register_platform_driver(&OF_PLATFORM_DRIVER);
if (retval < 0)
@@ -1200,6 +1219,14 @@
platform_driver_unregister(&PLATFORM_DRIVER);
error_platform:
#endif
+#ifdef OMAP1_PLATFORM_DRIVER
+ platform_driver_unregister(&OMAP1_PLATFORM_DRIVER);
+ error_omap1_platform:
+#endif
+#ifdef OMAP3_PLATFORM_DRIVER
+ platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
+ error_omap3_platform:
+#endif
#ifdef PS3_SYSTEM_BUS_DRIVER
ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
error_ps3:
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
new file mode 100644
index 0000000..2cc8a50
--- /dev/null
+++ b/drivers/usb/host/ohci-omap3.c
@@ -0,0 +1,735 @@
+/*
+ * ohci-omap3.c - driver for OHCI on OMAP3 and later processors
+ *
+ * Bus Glue for OMAP3 USBHOST 3 port OHCI controller
+ * This controller is also used in later OMAPs and AM35x chips
+ *
+ * Copyright (C) 2007-2010 Texas Instruments, Inc.
+ * Author: Vikram Pandita <vikram.pandita@ti.com>
+ * Author: Anand Gadiyar <gadiyar@ti.com>
+ *
+ * Based on ehci-omap.c and some other ohci glue layers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * TODO (last updated Mar 10th, 2010):
+ * - add kernel-doc
+ * - Factor out code common to EHCI to a separate file
+ * - Make EHCI and OHCI coexist together
+ * - needs newer silicon versions to actually work
+ * - the last one to be loaded currently steps on the other's toes
+ * - Add hooks for configuring transceivers, etc. at init/exit
+ * - Add aggressive clock-management code
+ */
+
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <plat/usb.h>
+
+/*
+ * OMAP USBHOST Register addresses: VIRTUAL ADDRESSES
+ * Use ohci_omap_readl()/ohci_omap_writel() functions
+ */
+
+/* TLL Register Set */
+#define OMAP_USBTLL_REVISION (0x00)
+#define OMAP_USBTLL_SYSCONFIG (0x10)
+#define OMAP_USBTLL_SYSCONFIG_CACTIVITY (1 << 8)
+#define OMAP_USBTLL_SYSCONFIG_SIDLEMODE (1 << 3)
+#define OMAP_USBTLL_SYSCONFIG_ENAWAKEUP (1 << 2)
+#define OMAP_USBTLL_SYSCONFIG_SOFTRESET (1 << 1)
+#define OMAP_USBTLL_SYSCONFIG_AUTOIDLE (1 << 0)
+
+#define OMAP_USBTLL_SYSSTATUS (0x14)
+#define OMAP_USBTLL_SYSSTATUS_RESETDONE (1 << 0)
+
+#define OMAP_USBTLL_IRQSTATUS (0x18)
+#define OMAP_USBTLL_IRQENABLE (0x1C)
+
+#define OMAP_TLL_SHARED_CONF (0x30)
+#define OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN (1 << 6)
+#define OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN (1 << 5)
+#define OMAP_TLL_SHARED_CONF_USB_DIVRATION (1 << 2)
+#define OMAP_TLL_SHARED_CONF_FCLK_REQ (1 << 1)
+#define OMAP_TLL_SHARED_CONF_FCLK_IS_ON (1 << 0)
+
+#define OMAP_TLL_CHANNEL_CONF(num) (0x040 + 0x004 * num)
+#define OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT 24
+#define OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF (1 << 11)
+#define OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE (1 << 10)
+#define OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE (1 << 9)
+#define OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE (1 << 8)
+#define OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS (1 << 1)
+#define OMAP_TLL_CHANNEL_CONF_CHANEN (1 << 0)
+
+#define OMAP_TLL_CHANNEL_COUNT 3
+
+/* UHH Register Set */
+#define OMAP_UHH_REVISION (0x00)
+#define OMAP_UHH_SYSCONFIG (0x10)
+#define OMAP_UHH_SYSCONFIG_MIDLEMODE (1 << 12)
+#define OMAP_UHH_SYSCONFIG_CACTIVITY (1 << 8)
+#define OMAP_UHH_SYSCONFIG_SIDLEMODE (1 << 3)
+#define OMAP_UHH_SYSCONFIG_ENAWAKEUP (1 << 2)
+#define OMAP_UHH_SYSCONFIG_SOFTRESET (1 << 1)
+#define OMAP_UHH_SYSCONFIG_AUTOIDLE (1 << 0)
+
+#define OMAP_UHH_SYSSTATUS (0x14)
+#define OMAP_UHH_SYSSTATUS_UHHRESETDONE (1 << 0)
+#define OMAP_UHH_SYSSTATUS_OHCIRESETDONE (1 << 1)
+#define OMAP_UHH_SYSSTATUS_EHCIRESETDONE (1 << 2)
+#define OMAP_UHH_HOSTCONFIG (0x40)
+#define OMAP_UHH_HOSTCONFIG_ULPI_BYPASS (1 << 0)
+#define OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS (1 << 0)
+#define OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS (1 << 11)
+#define OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS (1 << 12)
+#define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN (1 << 2)
+#define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN (1 << 3)
+#define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN (1 << 4)
+#define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN (1 << 5)
+#define OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS (1 << 8)
+#define OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS (1 << 9)
+#define OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS (1 << 10)
+
+#define OMAP_UHH_DEBUG_CSR (0x44)
+
+/*-------------------------------------------------------------------------*/
+
+static inline void ohci_omap_writel(void __iomem *base, u32 reg, u32 val)
+{
+ __raw_writel(val, base + reg);
+}
+
+static inline u32 ohci_omap_readl(void __iomem *base, u32 reg)
+{
+ return __raw_readl(base + reg);
+}
+
+static inline void ohci_omap_writeb(void __iomem *base, u8 reg, u8 val)
+{
+ __raw_writeb(val, base + reg);
+}
+
+static inline u8 ohci_omap_readb(void __iomem *base, u8 reg)
+{
+ return __raw_readb(base + reg);
+}
+
+/*-------------------------------------------------------------------------*/
+
+struct ohci_hcd_omap3 {
+ struct ohci_hcd *ohci;
+ struct device *dev;
+
+ struct clk *usbhost_ick;
+ struct clk *usbhost2_120m_fck;
+ struct clk *usbhost1_48m_fck;
+ struct clk *usbtll_fck;
+ struct clk *usbtll_ick;
+
+ /* port_mode: TLL/PHY, 2/3/4/6-PIN, DP-DM/DAT-SE0 */
+ enum ohci_omap3_port_mode port_mode[OMAP3_HS_USB_PORTS];
+ void __iomem *uhh_base;
+ void __iomem *tll_base;
+ void __iomem *ohci_base;
+
+ unsigned es2_compatibility:1;
+};
+
+/*-------------------------------------------------------------------------*/
+
+static void ohci_omap3_clock_power(struct ohci_hcd_omap3 *omap, int on)
+{
+ if (on) {
+ clk_enable(omap->usbtll_ick);
+ clk_enable(omap->usbtll_fck);
+ clk_enable(omap->usbhost_ick);
+ clk_enable(omap->usbhost1_48m_fck);
+ clk_enable(omap->usbhost2_120m_fck);
+ } else {
+ clk_disable(omap->usbhost2_120m_fck);
+ clk_disable(omap->usbhost1_48m_fck);
+ clk_disable(omap->usbhost_ick);
+ clk_disable(omap->usbtll_fck);
+ clk_disable(omap->usbtll_ick);
+ }
+}
+
+static int ohci_omap3_init(struct usb_hcd *hcd)
+{
+ dev_dbg(hcd->self.controller, "starting OHCI controller\n");
+
+ return ohci_init(hcd_to_ohci(hcd));
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+static int ohci_omap3_start(struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+ int ret;
+
+ /*
+ * RemoteWakeupConnected has to be set explicitly before
+ * calling ohci_run. The reset value of RWC is 0.
+ */
+ ohci->hc_control = OHCI_CTRL_RWC;
+ writel(OHCI_CTRL_RWC, &ohci->regs->control);
+
+ ret = ohci_run(ohci);
+
+ if (ret < 0) {
+ dev_err(hcd->self.controller, "can't start\n");
+ ohci_stop(hcd);
+ }
+
+ return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * convert the port-mode enum to a value we can use in the FSLSMODE
+ * field of USBTLL_CHANNEL_CONF
+ */
+static unsigned ohci_omap3_fslsmode(enum ohci_omap3_port_mode mode)
+{
+ switch (mode) {
+ case OMAP_OHCI_PORT_MODE_UNUSED:
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
+ return 0x0;
+
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
+ return 0x1;
+
+ case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
+ return 0x2;
+
+ case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
+ return 0x3;
+
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
+ return 0x4;
+
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
+ return 0x5;
+
+ case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
+ return 0x6;
+
+ case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
+ return 0x7;
+
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
+ return 0xA;
+
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
+ return 0xB;
+ default:
+ pr_warning("Invalid port mode, using default\n");
+ return 0x0;
+ }
+}
+
+static void ohci_omap3_tll_config(struct ohci_hcd_omap3 *omap)
+{
+ u32 reg;
+ int i;
+
+ /* Program TLL SHARED CONF */
+ reg = ohci_omap_readl(omap->tll_base, OMAP_TLL_SHARED_CONF);
+ reg &= ~OMAP_TLL_SHARED_CONF_USB_90D_DDR_EN;
+ reg &= ~OMAP_TLL_SHARED_CONF_USB_180D_SDR_EN;
+ reg |= OMAP_TLL_SHARED_CONF_USB_DIVRATION;
+ reg |= OMAP_TLL_SHARED_CONF_FCLK_IS_ON;
+ ohci_omap_writel(omap->tll_base, OMAP_TLL_SHARED_CONF, reg);
+
+ /* Program each TLL channel */
+ /*
+ * REVISIT: Only the 3-pin and 4-pin PHY modes have
+ * actually been tested.
+ */
+ for (i = 0; i < OMAP_TLL_CHANNEL_COUNT; i++) {
+
+ /* Enable only those channels that are actually used */
+ if (omap->port_mode[i] == OMAP_OHCI_PORT_MODE_UNUSED)
+ continue;
+
+ reg = ohci_omap_readl(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i));
+ reg |= ohci_omap3_fslsmode(omap->port_mode[i])
+ << OMAP_TLL_CHANNEL_CONF_FSLSMODE_SHIFT;
+ reg |= OMAP_TLL_CHANNEL_CONF_CHANMODE_FSLS;
+ reg |= OMAP_TLL_CHANNEL_CONF_CHANEN;
+ ohci_omap_writel(omap->tll_base, OMAP_TLL_CHANNEL_CONF(i), reg);
+ }
+}
+
+/* omap3_start_ohci
+ * - Start the TI USBHOST controller
+ */
+static int omap3_start_ohci(struct ohci_hcd_omap3 *omap, struct usb_hcd *hcd)
+{
+ unsigned long timeout = jiffies + msecs_to_jiffies(1000);
+ u32 reg = 0;
+ int ret = 0;
+
+ dev_dbg(omap->dev, "starting TI OHCI USB Controller\n");
+
+ /* Get all the clock handles we need */
+ omap->usbhost_ick = clk_get(omap->dev, "usbhost_ick");
+ if (IS_ERR(omap->usbhost_ick)) {
+ dev_err(omap->dev, "could not get usbhost_ick\n");
+ ret = PTR_ERR(omap->usbhost_ick);
+ goto err_host_ick;
+ }
+
+ omap->usbhost2_120m_fck = clk_get(omap->dev, "usbhost_120m_fck");
+ if (IS_ERR(omap->usbhost2_120m_fck)) {
+ dev_err(omap->dev, "could not get usbhost_120m_fck\n");
+ ret = PTR_ERR(omap->usbhost2_120m_fck);
+ goto err_host_120m_fck;
+ }
+
+ omap->usbhost1_48m_fck = clk_get(omap->dev, "usbhost_48m_fck");
+ if (IS_ERR(omap->usbhost1_48m_fck)) {
+ dev_err(omap->dev, "could not get usbhost_48m_fck\n");
+ ret = PTR_ERR(omap->usbhost1_48m_fck);
+ goto err_host_48m_fck;
+ }
+
+ omap->usbtll_fck = clk_get(omap->dev, "usbtll_fck");
+ if (IS_ERR(omap->usbtll_fck)) {
+ dev_err(omap->dev, "could not get usbtll_fck\n");
+ ret = PTR_ERR(omap->usbtll_fck);
+ goto err_tll_fck;
+ }
+
+ omap->usbtll_ick = clk_get(omap->dev, "usbtll_ick");
+ if (IS_ERR(omap->usbtll_ick)) {
+ dev_err(omap->dev, "could not get usbtll_ick\n");
+ ret = PTR_ERR(omap->usbtll_ick);
+ goto err_tll_ick;
+ }
+
+ /* Now enable all the clocks in the correct order */
+ ohci_omap3_clock_power(omap, 1);
+
+ /* perform TLL soft reset, and wait until reset is complete */
+ ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
+ OMAP_USBTLL_SYSCONFIG_SOFTRESET);
+
+ /* Wait for TLL reset to complete */
+ while (!(ohci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
+ & OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
+ cpu_relax();
+
+ if (time_after(jiffies, timeout)) {
+ dev_dbg(omap->dev, "operation timed out\n");
+ ret = -EINVAL;
+ goto err_sys_status;
+ }
+ }
+
+ dev_dbg(omap->dev, "TLL reset done\n");
+
+ /* (1<<3) = no idle mode only for initial debugging */
+ ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
+ OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
+ OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
+ OMAP_USBTLL_SYSCONFIG_CACTIVITY);
+
+
+ /* Put UHH in NoIdle/NoStandby mode */
+ reg = ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSCONFIG);
+ reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
+ | OMAP_UHH_SYSCONFIG_SIDLEMODE
+ | OMAP_UHH_SYSCONFIG_CACTIVITY
+ | OMAP_UHH_SYSCONFIG_MIDLEMODE);
+ reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
+ reg &= ~OMAP_UHH_SYSCONFIG_SOFTRESET;
+
+ ohci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
+
+ reg = ohci_omap_readl(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
+
+ /* setup ULPI bypass and burst configurations */
+ reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
+ | OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN
+ | OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN);
+ reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
+
+ /*
+ * REVISIT: Pi_CONNECT_STATUS controls MStandby
+ * assertion and Swakeup generation - let us not
+ * worry about this for now. OMAP HWMOD framework
+ * might take care of this later. If not, we can
+ * update these registers when adding aggressive
+ * clock management code.
+ *
+ * For now, turn off all the Pi_CONNECT_STATUS bits
+ *
+ if (omap->port_mode[0] == OMAP_OHCI_PORT_MODE_UNUSED)
+ reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
+ if (omap->port_mode[1] == OMAP_OHCI_PORT_MODE_UNUSED)
+ reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
+ if (omap->port_mode[2] == OMAP_OHCI_PORT_MODE_UNUSED)
+ reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
+ */
+ reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
+ reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
+ reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
+
+ if (omap->es2_compatibility) {
+ /*
+ * All OHCI modes need to go through the TLL,
+ * unlike in the EHCI case. So use UTMI mode
+ * for all ports for OHCI, on ES2.x silicon
+ */
+ dev_dbg(omap->dev, "OMAP3 ES version <= ES2.1\n");
+ reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
+ } else {
+ dev_dbg(omap->dev, "OMAP3 ES version > ES2.1\n");
+ if (omap->port_mode[0] == OMAP_OHCI_PORT_MODE_UNUSED)
+ reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
+ else
+ reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
+
+ if (omap->port_mode[1] == OMAP_OHCI_PORT_MODE_UNUSED)
+ reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
+ else
+ reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
+
+ if (omap->port_mode[2] == OMAP_OHCI_PORT_MODE_UNUSED)
+ reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
+ else
+ reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
+
+ }
+ ohci_omap_writel(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
+ dev_dbg(omap->dev, "UHH setup done, uhh_hostconfig=%x\n", reg);
+
+ ohci_omap3_tll_config(omap);
+
+ return 0;
+
+err_sys_status:
+ ohci_omap3_clock_power(omap, 0);
+ clk_put(omap->usbtll_ick);
+
+err_tll_ick:
+ clk_put(omap->usbtll_fck);
+
+err_tll_fck:
+ clk_put(omap->usbhost1_48m_fck);
+
+err_host_48m_fck:
+ clk_put(omap->usbhost2_120m_fck);
+
+err_host_120m_fck:
+ clk_put(omap->usbhost_ick);
+
+err_host_ick:
+ return ret;
+}
+
+static void omap3_stop_ohci(struct ohci_hcd_omap3 *omap, struct usb_hcd *hcd)
+{
+ unsigned long timeout = jiffies + msecs_to_jiffies(100);
+
+ dev_dbg(omap->dev, "stopping TI EHCI USB Controller\n");
+
+ /* Reset USBHOST for insmod/rmmod to work */
+ ohci_omap_writel(omap->uhh_base, OMAP_UHH_SYSCONFIG,
+ OMAP_UHH_SYSCONFIG_SOFTRESET);
+ while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
+ & OMAP_UHH_SYSSTATUS_UHHRESETDONE)) {
+ cpu_relax();
+
+ if (time_after(jiffies, timeout))
+ dev_dbg(omap->dev, "operation timed out\n");
+ }
+
+ while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
+ & OMAP_UHH_SYSSTATUS_OHCIRESETDONE)) {
+ cpu_relax();
+
+ if (time_after(jiffies, timeout))
+ dev_dbg(omap->dev, "operation timed out\n");
+ }
+
+ while (!(ohci_omap_readl(omap->uhh_base, OMAP_UHH_SYSSTATUS)
+ & OMAP_UHH_SYSSTATUS_EHCIRESETDONE)) {
+ cpu_relax();
+
+ if (time_after(jiffies, timeout))
+ dev_dbg(omap->dev, "operation timed out\n");
+ }
+
+ ohci_omap_writel(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1));
+
+ while (!(ohci_omap_readl(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
+ & (1 << 0))) {
+ cpu_relax();
+
+ if (time_after(jiffies, timeout))
+ dev_dbg(omap->dev, "operation timed out\n");
+ }
+
+ ohci_omap3_clock_power(omap, 0);
+
+ if (omap->usbtll_fck != NULL) {
+ clk_put(omap->usbtll_fck);
+ omap->usbtll_fck = NULL;
+ }
+
+ if (omap->usbhost_ick != NULL) {
+ clk_put(omap->usbhost_ick);
+ omap->usbhost_ick = NULL;
+ }
+
+ if (omap->usbhost1_48m_fck != NULL) {
+ clk_put(omap->usbhost1_48m_fck);
+ omap->usbhost1_48m_fck = NULL;
+ }
+
+ if (omap->usbhost2_120m_fck != NULL) {
+ clk_put(omap->usbhost2_120m_fck);
+ omap->usbhost2_120m_fck = NULL;
+ }
+
+ if (omap->usbtll_ick != NULL) {
+ clk_put(omap->usbtll_ick);
+ omap->usbtll_ick = NULL;
+ }
+
+ dev_dbg(omap->dev, "Clock to USB host has been disabled\n");
+}
+
+/*-------------------------------------------------------------------------*/
+
+static const struct hc_driver ohci_omap3_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "OMAP3 OHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ohci_irq,
+ .flags = HCD_USB11 | HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = ohci_omap3_init,
+ .start = ohci_omap3_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = ohci_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = ohci_hub_status_data,
+ .hub_control = ohci_hub_control,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+ .start_port_reset = ohci_start_port_reset,
+};
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * configure so an HC device and id are always provided
+ * always called with process context; sleeping is OK
+ */
+
+/**
+ * ohci_hcd_omap3_probe - initialize OMAP-based HCDs
+ *
+ * Allocates basic resources for this USB host controller, and
+ * then invokes the start() method for the HCD associated with it
+ * through the hotplug entry's driver_data.
+ */
+static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
+{
+ struct ohci_hcd_omap_platform_data *pdata = pdev->dev.platform_data;
+ struct ohci_hcd_omap3 *omap;
+ struct resource *res;
+ struct usb_hcd *hcd;
+ int ret = -ENODEV;
+ int irq;
+
+ if (usb_disabled())
+ goto err_disabled;
+
+ if (!pdata) {
+ dev_dbg(&pdev->dev, "missing platform_data\n");
+ goto err_pdata;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+
+ omap = kzalloc(sizeof(*omap), GFP_KERNEL);
+ if (!omap) {
+ ret = -ENOMEM;
+ goto err_disabled;
+ }
+
+ hcd = usb_create_hcd(&ohci_omap3_hc_driver, &pdev->dev,
+ dev_name(&pdev->dev));
+ if (!hcd) {
+ ret = -ENOMEM;
+ goto err_create_hcd;
+ }
+
+ platform_set_drvdata(pdev, omap);
+ omap->dev = &pdev->dev;
+ omap->port_mode[0] = pdata->port_mode[0];
+ omap->port_mode[1] = pdata->port_mode[1];
+ omap->port_mode[2] = pdata->port_mode[2];
+ omap->es2_compatibility = pdata->es2_compatibility;
+ omap->ohci = hcd_to_ohci(hcd);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ hcd->rsrc_start = res->start;
+ hcd->rsrc_len = resource_size(res);
+
+ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs) {
+ dev_err(&pdev->dev, "OHCI ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_ioremap;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ omap->uhh_base = ioremap(res->start, resource_size(res));
+ if (!omap->uhh_base) {
+ dev_err(&pdev->dev, "UHH ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_uhh_ioremap;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ omap->tll_base = ioremap(res->start, resource_size(res));
+ if (!omap->tll_base) {
+ dev_err(&pdev->dev, "TLL ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_tll_ioremap;
+ }
+
+ ret = omap3_start_ohci(omap, hcd);
+ if (ret) {
+ dev_dbg(&pdev->dev, "failed to start ehci\n");
+ goto err_start;
+ }
+
+ ohci_hcd_init(omap->ohci);
+
+ ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+ if (ret) {
+ dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
+ goto err_add_hcd;
+ }
+
+ return 0;
+
+err_add_hcd:
+ omap3_stop_ohci(omap, hcd);
+
+err_start:
+ iounmap(omap->tll_base);
+
+err_tll_ioremap:
+ iounmap(omap->uhh_base);
+
+err_uhh_ioremap:
+ iounmap(hcd->regs);
+
+err_ioremap:
+ usb_put_hcd(hcd);
+
+err_create_hcd:
+ kfree(omap);
+err_pdata:
+err_disabled:
+ return ret;
+}
+
+/*
+ * may be called without controller electrically present
+ * may be called with controller, bus, and devices active
+ */
+
+/**
+ * ohci_hcd_omap3_remove - shutdown processing for OHCI HCDs
+ * @pdev: USB Host Controller being removed
+ *
+ * Reverses the effect of ohci_hcd_omap3_probe(), first invoking
+ * the HCD's stop() method. It is always called from a thread
+ * context, normally "rmmod", "apmd", or something similar.
+ */
+static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
+{
+ struct ohci_hcd_omap3 *omap = platform_get_drvdata(pdev);
+ struct usb_hcd *hcd = ohci_to_hcd(omap->ohci);
+
+ usb_remove_hcd(hcd);
+ omap3_stop_ohci(omap, hcd);
+ iounmap(hcd->regs);
+ iounmap(omap->tll_base);
+ iounmap(omap->uhh_base);
+ usb_put_hcd(hcd);
+ kfree(omap);
+
+ return 0;
+}
+
+static void ohci_hcd_omap3_shutdown(struct platform_device *pdev)
+{
+ struct ohci_hcd_omap3 *omap = platform_get_drvdata(pdev);
+ struct usb_hcd *hcd = ohci_to_hcd(omap->ohci);
+
+ if (hcd->driver->shutdown)
+ hcd->driver->shutdown(hcd);
+}
+
+static struct platform_driver ohci_hcd_omap3_driver = {
+ .probe = ohci_hcd_omap3_probe,
+ .remove = __devexit_p(ohci_hcd_omap3_remove),
+ .shutdown = ohci_hcd_omap3_shutdown,
+ .driver = {
+ .name = "ohci-omap3",
+ },
+};
+
+MODULE_ALIAS("platform:ohci-omap3");
+MODULE_AUTHOR("Anand Gadiyar <gadiyar@ti.com>");
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index e62b30b..f608dfd 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -34,12 +34,11 @@
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/moduleparam.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
-#include "../core/hcd.h"
-
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/unaligned.h>
@@ -3154,10 +3153,10 @@
case 0:
return 0;
case 1:
- return 1 << USB_PORT_FEAT_LOWSPEED;
+ return USB_PORT_STAT_LOW_SPEED;
case 2:
default:
- return 1 << USB_PORT_FEAT_HIGHSPEED;
+ return USB_PORT_STAT_HIGH_SPEED;
}
}
@@ -3202,7 +3201,7 @@
* Even if OWNER is set, so the port is owned by the
* companion controller, khubd needs to be able to clear
* the port-change status bits (especially
- * USB_PORT_FEAT_C_CONNECTION).
+ * USB_PORT_STAT_C_CONNECTION).
*/
switch (wValue) {
@@ -3264,11 +3263,11 @@
/* wPortChange bits */
if (temp & PORT_CSC)
- status |= 1 << USB_PORT_FEAT_C_CONNECTION;
+ status |= USB_PORT_STAT_C_CONNECTION << 16;
if (temp & PORT_PEC)
- status |= 1 << USB_PORT_FEAT_C_ENABLE;
+ status |= USB_PORT_STAT_C_ENABLE << 16;
if ((temp & PORT_OCC) && !ignore_oc)
- status |= 1 << USB_PORT_FEAT_C_OVER_CURRENT;
+ status |= USB_PORT_STAT_C_OVERCURRENT << 16;
/* whoever resumes must GetPortStatus to complete it!! */
if (temp & PORT_RESUME) {
@@ -3286,7 +3285,7 @@
/* resume completed? */
else if (time_after_eq(jiffies,
oxu->reset_done[wIndex])) {
- status |= 1 << USB_PORT_FEAT_C_SUSPEND;
+ status |= USB_PORT_STAT_C_SUSPEND << 16;
oxu->reset_done[wIndex] = 0;
/* stop resume signaling */
@@ -3309,7 +3308,7 @@
if ((temp & PORT_RESET)
&& time_after_eq(jiffies,
oxu->reset_done[wIndex])) {
- status |= 1 << USB_PORT_FEAT_C_RESET;
+ status |= USB_PORT_STAT_C_RESET << 16;
oxu->reset_done[wIndex] = 0;
/* force reset to complete */
@@ -3348,20 +3347,20 @@
*/
if (temp & PORT_CONNECT) {
- status |= 1 << USB_PORT_FEAT_CONNECTION;
+ status |= USB_PORT_STAT_CONNECTION;
/* status may be from integrated TT */
status |= oxu_port_speed(oxu, temp);
}
if (temp & PORT_PE)
- status |= 1 << USB_PORT_FEAT_ENABLE;
+ status |= USB_PORT_STAT_ENABLE;
if (temp & (PORT_SUSPEND|PORT_RESUME))
- status |= 1 << USB_PORT_FEAT_SUSPEND;
+ status |= USB_PORT_STAT_SUSPEND;
if (temp & PORT_OC)
- status |= 1 << USB_PORT_FEAT_OVER_CURRENT;
+ status |= USB_PORT_STAT_OVERCURRENT;
if (temp & PORT_RESET)
- status |= 1 << USB_PORT_FEAT_RESET;
+ status |= USB_PORT_STAT_RESET;
if (temp & PORT_POWER)
- status |= 1 << USB_PORT_FEAT_POWER;
+ status |= USB_PORT_STAT_POWER;
#ifndef OXU_VERBOSE_DEBUG
if (status & ~0xffff) /* only if wPortChange is interesting */
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index d478ffa..6db57ab 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -33,6 +33,7 @@
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/mm.h>
@@ -40,7 +41,6 @@
#include <linux/slab.h>
#include <asm/cacheflush.h>
-#include "../core/hcd.h"
#include "r8a66597.h"
MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
@@ -1018,10 +1018,10 @@
rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
rh->scount = R8A66597_MAX_SAMPLING;
if (connect)
- rh->port |= 1 << USB_PORT_FEAT_CONNECTION;
+ rh->port |= USB_PORT_STAT_CONNECTION;
else
- rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION);
- rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION;
+ rh->port &= ~USB_PORT_STAT_CONNECTION;
+ rh->port |= USB_PORT_STAT_C_CONNECTION << 16;
r8a66597_root_hub_start_polling(r8a66597);
}
@@ -1059,15 +1059,14 @@
u16 speed = get_rh_usb_speed(r8a66597, port);
struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
- rh->port &= ~((1 << USB_PORT_FEAT_HIGHSPEED) |
- (1 << USB_PORT_FEAT_LOWSPEED));
+ rh->port &= ~(USB_PORT_STAT_HIGH_SPEED | USB_PORT_STAT_LOW_SPEED);
if (speed == HSMODE)
- rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED);
+ rh->port |= USB_PORT_STAT_HIGH_SPEED;
else if (speed == LSMODE)
- rh->port |= (1 << USB_PORT_FEAT_LOWSPEED);
+ rh->port |= USB_PORT_STAT_LOW_SPEED;
- rh->port &= ~(1 << USB_PORT_FEAT_RESET);
- rh->port |= 1 << USB_PORT_FEAT_ENABLE;
+ rh->port &= USB_PORT_STAT_RESET;
+ rh->port |= USB_PORT_STAT_ENABLE;
}
/* this function must be called with interrupt disabled */
@@ -1706,7 +1705,7 @@
u16 tmp;
struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
- if (rh->port & (1 << USB_PORT_FEAT_RESET)) {
+ if (rh->port & USB_PORT_STAT_RESET) {
unsigned long dvstctr_reg = get_dvstctr_reg(port);
tmp = r8a66597_read(r8a66597, dvstctr_reg);
@@ -1718,7 +1717,7 @@
r8a66597_usb_connect(r8a66597, port);
}
- if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) {
+ if (!(rh->port & USB_PORT_STAT_CONNECTION)) {
r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
}
@@ -2186,7 +2185,7 @@
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
- rh->port &= ~(1 << USB_PORT_FEAT_POWER);
+ rh->port &= ~USB_PORT_STAT_POWER;
break;
case USB_PORT_FEAT_SUSPEND:
break;
@@ -2227,12 +2226,12 @@
break;
case USB_PORT_FEAT_POWER:
r8a66597_port_power(r8a66597, port, 1);
- rh->port |= (1 << USB_PORT_FEAT_POWER);
+ rh->port |= USB_PORT_STAT_POWER;
break;
case USB_PORT_FEAT_RESET: {
struct r8a66597_device *dev = rh->dev;
- rh->port |= (1 << USB_PORT_FEAT_RESET);
+ rh->port |= USB_PORT_STAT_RESET;
disable_r8a66597_pipe_all(r8a66597, dev);
free_usb_address(r8a66597, dev, 1);
@@ -2270,12 +2269,12 @@
struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
unsigned long dvstctr_reg = get_dvstctr_reg(port);
- if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE)))
+ if (!(rh->port & USB_PORT_STAT_ENABLE))
continue;
dbg("suspend port = %d", port);
r8a66597_bclr(r8a66597, UACT, dvstctr_reg); /* suspend */
- rh->port |= 1 << USB_PORT_FEAT_SUSPEND;
+ rh->port |= USB_PORT_STAT_SUSPEND;
if (rh->dev->udev->do_remote_wakeup) {
msleep(3); /* waiting last SOF */
@@ -2301,12 +2300,12 @@
struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
unsigned long dvstctr_reg = get_dvstctr_reg(port);
- if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND)))
+ if (!(rh->port & USB_PORT_STAT_SUSPEND))
continue;
dbg("resume port = %d", port);
- rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND);
- rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND;
+ rh->port &= ~USB_PORT_STAT_SUSPEND;
+ rh->port |= USB_PORT_STAT_C_SUSPEND < 16;
r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
msleep(50);
r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 3b867a8..bcf9f0e 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -45,6 +45,7 @@
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/usb/sl811.h>
+#include <linux/usb/hcd.h>
#include <linux/platform_device.h>
#include <asm/io.h>
@@ -53,7 +54,6 @@
#include <asm/byteorder.h>
#include <asm/unaligned.h>
-#include "../core/hcd.h"
#include "sl811.h"
@@ -90,10 +90,10 @@
/* hub is inactive unless the port is powered */
if (is_on) {
- if (sl811->port1 & (1 << USB_PORT_FEAT_POWER))
+ if (sl811->port1 & USB_PORT_STAT_POWER)
return;
- sl811->port1 = (1 << USB_PORT_FEAT_POWER);
+ sl811->port1 = USB_PORT_STAT_POWER;
sl811->irq_enable = SL11H_INTMASK_INSRMV;
} else {
sl811->port1 = 0;
@@ -407,7 +407,7 @@
static inline void start_transfer(struct sl811 *sl811)
{
- if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND))
+ if (sl811->port1 & USB_PORT_STAT_SUSPEND)
return;
if (sl811->active_a == NULL) {
sl811->active_a = start(sl811, SL811_EP_A(SL811_HOST_BUF));
@@ -721,23 +721,23 @@
* force the reset and make khubd clean up later.
*/
if (irqstat & SL11H_INTMASK_RD)
- sl811->port1 &= ~(1 << USB_PORT_FEAT_CONNECTION);
+ sl811->port1 &= ~USB_PORT_STAT_CONNECTION;
else
- sl811->port1 |= 1 << USB_PORT_FEAT_CONNECTION;
+ sl811->port1 |= USB_PORT_STAT_CONNECTION;
- sl811->port1 |= 1 << USB_PORT_FEAT_C_CONNECTION;
+ sl811->port1 |= USB_PORT_STAT_C_CONNECTION << 16;
} else if (irqstat & SL11H_INTMASK_RD) {
- if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)) {
+ if (sl811->port1 & USB_PORT_STAT_SUSPEND) {
DBG("wakeup\n");
- sl811->port1 |= 1 << USB_PORT_FEAT_C_SUSPEND;
+ sl811->port1 |= USB_PORT_STAT_C_SUSPEND << 16;
sl811->stat_wake++;
} else
irqstat &= ~SL11H_INTMASK_RD;
}
if (irqstat) {
- if (sl811->port1 & (1 << USB_PORT_FEAT_ENABLE))
+ if (sl811->port1 & USB_PORT_STAT_ENABLE)
start_transfer(sl811);
ret = IRQ_HANDLED;
if (retries--)
@@ -819,7 +819,7 @@
spin_lock_irqsave(&sl811->lock, flags);
/* don't submit to a dead or disabled port */
- if (!(sl811->port1 & (1 << USB_PORT_FEAT_ENABLE))
+ if (!(sl811->port1 & USB_PORT_STAT_ENABLE)
|| !HC_IS_RUNNING(hcd->state)) {
retval = -ENODEV;
kfree(ep);
@@ -1119,9 +1119,9 @@
unsigned long flags;
u8 irqstat;
u8 signaling = sl811->ctrl1 & SL11H_CTL1MASK_FORCE;
- const u32 mask = (1 << USB_PORT_FEAT_CONNECTION)
- | (1 << USB_PORT_FEAT_ENABLE)
- | (1 << USB_PORT_FEAT_LOWSPEED);
+ const u32 mask = USB_PORT_STAT_CONNECTION
+ | USB_PORT_STAT_ENABLE
+ | USB_PORT_STAT_LOW_SPEED;
spin_lock_irqsave(&sl811->lock, flags);
@@ -1135,8 +1135,8 @@
switch (signaling) {
case SL11H_CTL1MASK_SE0:
DBG("end reset\n");
- sl811->port1 = (1 << USB_PORT_FEAT_C_RESET)
- | (1 << USB_PORT_FEAT_POWER);
+ sl811->port1 = (USB_PORT_STAT_C_RESET << 16)
+ | USB_PORT_STAT_POWER;
sl811->ctrl1 = 0;
/* don't wrongly ack RD */
if (irqstat & SL11H_INTMASK_INSRMV)
@@ -1144,7 +1144,7 @@
break;
case SL11H_CTL1MASK_K:
DBG("end resume\n");
- sl811->port1 &= ~(1 << USB_PORT_FEAT_SUSPEND);
+ sl811->port1 &= ~USB_PORT_STAT_SUSPEND;
break;
default:
DBG("odd timer signaling: %02x\n", signaling);
@@ -1154,26 +1154,26 @@
if (irqstat & SL11H_INTMASK_RD) {
/* usbcore nukes all pending transactions on disconnect */
- if (sl811->port1 & (1 << USB_PORT_FEAT_CONNECTION))
- sl811->port1 |= (1 << USB_PORT_FEAT_C_CONNECTION)
- | (1 << USB_PORT_FEAT_C_ENABLE);
+ if (sl811->port1 & USB_PORT_STAT_CONNECTION)
+ sl811->port1 |= (USB_PORT_STAT_C_CONNECTION << 16)
+ | (USB_PORT_STAT_C_ENABLE << 16);
sl811->port1 &= ~mask;
sl811->irq_enable = SL11H_INTMASK_INSRMV;
} else {
sl811->port1 |= mask;
if (irqstat & SL11H_INTMASK_DP)
- sl811->port1 &= ~(1 << USB_PORT_FEAT_LOWSPEED);
+ sl811->port1 &= ~USB_PORT_STAT_LOW_SPEED;
sl811->irq_enable = SL11H_INTMASK_INSRMV | SL11H_INTMASK_RD;
}
- if (sl811->port1 & (1 << USB_PORT_FEAT_CONNECTION)) {
+ if (sl811->port1 & USB_PORT_STAT_CONNECTION) {
u8 ctrl2 = SL811HS_CTL2_INIT;
sl811->irq_enable |= SL11H_INTMASK_DONE_A;
#ifdef USE_B
sl811->irq_enable |= SL11H_INTMASK_DONE_B;
#endif
- if (sl811->port1 & (1 << USB_PORT_FEAT_LOWSPEED)) {
+ if (sl811->port1 & USB_PORT_STAT_LOW_SPEED) {
sl811->ctrl1 |= SL11H_CTL1MASK_LSPD;
ctrl2 |= SL811HS_CTL2MASK_DSWAP;
}
@@ -1233,7 +1233,7 @@
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
- sl811->port1 &= (1 << USB_PORT_FEAT_POWER);
+ sl811->port1 &= USB_PORT_STAT_POWER;
sl811->ctrl1 = 0;
sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
sl811->irq_enable = SL11H_INTMASK_INSRMV;
@@ -1241,7 +1241,7 @@
sl811->irq_enable);
break;
case USB_PORT_FEAT_SUSPEND:
- if (!(sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)))
+ if (!(sl811->port1 & USB_PORT_STAT_SUSPEND))
break;
/* 20 msec of resume/K signaling, other irqs blocked */
@@ -1290,9 +1290,9 @@
goto error;
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
- if (sl811->port1 & (1 << USB_PORT_FEAT_RESET))
+ if (sl811->port1 & USB_PORT_STAT_RESET)
goto error;
- if (!(sl811->port1 & (1 << USB_PORT_FEAT_ENABLE)))
+ if (!(sl811->port1 & USB_PORT_STAT_ENABLE))
goto error;
DBG("suspend...\n");
@@ -1303,9 +1303,9 @@
port_power(sl811, 1);
break;
case USB_PORT_FEAT_RESET:
- if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND))
+ if (sl811->port1 & USB_PORT_STAT_SUSPEND)
goto error;
- if (!(sl811->port1 & (1 << USB_PORT_FEAT_POWER)))
+ if (!(sl811->port1 & USB_PORT_STAT_POWER))
break;
/* 50 msec of reset/SE0 signaling, irqs blocked */
@@ -1314,7 +1314,7 @@
sl811->irq_enable);
sl811->ctrl1 = SL11H_CTL1MASK_SE0;
sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
- sl811->port1 |= (1 << USB_PORT_FEAT_RESET);
+ sl811->port1 |= USB_PORT_STAT_RESET;
mod_timer(&sl811->timer, jiffies
+ msecs_to_jiffies(50));
break;
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 228f2b0..5b31bae 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -49,6 +49,7 @@
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
@@ -56,7 +57,6 @@
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/byteorder.h>
-#include "../core/hcd.h"
/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
* If you're going to try stuff like this, you need to split
@@ -1446,9 +1446,9 @@
return;
} else {
int retval;
- u8 address = u132->addr[endp->usb_addr].address;
struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
endp->queue_next];
+ address = u132->addr[endp->usb_addr].address;
endp->active = 1;
ring->curr_endp = endp;
ring->in_use = 1;
@@ -3120,8 +3120,8 @@
ftdi_elan_gone_away(pdev);
return -ENOMEM;
} else {
- int retval = 0;
struct u132 *u132 = hcd_to_u132(hcd);
+ retval = 0;
hcd->rsrc_start = 0;
mutex_lock(&u132_module_lock);
list_add_tail(&u132->u132_list, &u132_static_list);
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 0919706..6637e52 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -38,6 +38,7 @@
#include <linux/dmapool.h>
#include <linux/dma-mapping.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/bitops.h>
#include <linux/dmi.h>
@@ -46,7 +47,6 @@
#include <asm/irq.h>
#include <asm/system.h>
-#include "../core/hcd.h"
#include "uhci-hcd.h"
#include "pci-quirks.h"
diff --git a/drivers/usb/host/whci/debug.c b/drivers/usb/host/whci/debug.c
index c5305b5..767af26 100644
--- a/drivers/usb/host/whci/debug.c
+++ b/drivers/usb/host/whci/debug.c
@@ -30,7 +30,7 @@
struct dentry *pzl_f;
};
-void qset_print(struct seq_file *s, struct whc_qset *qset)
+static void qset_print(struct seq_file *s, struct whc_qset *qset)
{
static const char *qh_type[] = {
"ctrl", "isoc", "bulk", "intr", "rsvd", "rsvd", "rsvd", "lpintr", };
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index 141d049..ab5a14f 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -443,7 +443,7 @@
remaining = urb->transfer_buffer_length;
- for_each_sg(urb->sg->sg, sg, urb->num_sgs, i) {
+ for_each_sg(urb->sg, sg, urb->num_sgs, i) {
dma_addr_t dma_addr;
size_t dma_remaining;
dma_addr_t sp, ep;
@@ -561,7 +561,7 @@
remaining = urb->transfer_buffer_length;
- for_each_sg(urb->sg->sg, sg, urb->sg->nents, i) {
+ for_each_sg(urb->sg, sg, urb->num_sgs, i) {
size_t len;
size_t sg_remaining;
void *orig;
@@ -646,7 +646,7 @@
wurb->urb = urb;
INIT_WORK(&wurb->dequeue_work, urb_dequeue_work);
- if (urb->sg) {
+ if (urb->num_sgs) {
ret = qset_add_urb_sg(whc, qset, urb, mem_flags);
if (ret == -EINVAL) {
qset_free_stds(qset, urb);
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 105fa8b..fcbf4ab 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -364,6 +364,30 @@
xhci_debug_segment(xhci, seg);
}
+void xhci_dbg_ep_rings(struct xhci_hcd *xhci,
+ unsigned int slot_id, unsigned int ep_index,
+ struct xhci_virt_ep *ep)
+{
+ int i;
+ struct xhci_ring *ring;
+
+ if (ep->ep_state & EP_HAS_STREAMS) {
+ for (i = 1; i < ep->stream_info->num_streams; i++) {
+ ring = ep->stream_info->stream_rings[i];
+ xhci_dbg(xhci, "Dev %d endpoint %d stream ID %d:\n",
+ slot_id, ep_index, i);
+ xhci_debug_segment(xhci, ring->deq_seg);
+ }
+ } else {
+ ring = ep->ring;
+ if (!ring)
+ return;
+ xhci_dbg(xhci, "Dev %d endpoint ring %d:\n",
+ slot_id, ep_index);
+ xhci_debug_segment(xhci, ring->deq_seg);
+ }
+}
+
void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
{
u32 addr = (u32) erst->erst_dma_addr;
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 208b805..a1a7a97 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -64,15 +64,15 @@
static unsigned int xhci_port_speed(unsigned int port_status)
{
if (DEV_LOWSPEED(port_status))
- return 1 << USB_PORT_FEAT_LOWSPEED;
+ return USB_PORT_STAT_LOW_SPEED;
if (DEV_HIGHSPEED(port_status))
- return 1 << USB_PORT_FEAT_HIGHSPEED;
+ return USB_PORT_STAT_HIGH_SPEED;
if (DEV_SUPERSPEED(port_status))
- return 1 << USB_PORT_FEAT_SUPERSPEED;
+ return USB_PORT_STAT_SUPER_SPEED;
/*
* FIXME: Yes, we should check for full speed, but the core uses that as
* a default in portspeed() in usb/core/hub.c (which is the only place
- * USB_PORT_FEAT_*SPEED is used).
+ * USB_PORT_STAT_*_SPEED is used).
*/
return 0;
}
@@ -205,27 +205,27 @@
/* wPortChange bits */
if (temp & PORT_CSC)
- status |= 1 << USB_PORT_FEAT_C_CONNECTION;
+ status |= USB_PORT_STAT_C_CONNECTION << 16;
if (temp & PORT_PEC)
- status |= 1 << USB_PORT_FEAT_C_ENABLE;
+ status |= USB_PORT_STAT_C_ENABLE << 16;
if ((temp & PORT_OCC))
- status |= 1 << USB_PORT_FEAT_C_OVER_CURRENT;
+ status |= USB_PORT_STAT_C_OVERCURRENT << 16;
/*
* FIXME ignoring suspend, reset, and USB 2.1/3.0 specific
* changes
*/
if (temp & PORT_CONNECT) {
- status |= 1 << USB_PORT_FEAT_CONNECTION;
+ status |= USB_PORT_STAT_CONNECTION;
status |= xhci_port_speed(temp);
}
if (temp & PORT_PE)
- status |= 1 << USB_PORT_FEAT_ENABLE;
+ status |= USB_PORT_STAT_ENABLE;
if (temp & PORT_OC)
- status |= 1 << USB_PORT_FEAT_OVER_CURRENT;
+ status |= USB_PORT_STAT_OVERCURRENT;
if (temp & PORT_RESET)
- status |= 1 << USB_PORT_FEAT_RESET;
+ status |= USB_PORT_STAT_RESET;
if (temp & PORT_POWER)
- status |= 1 << USB_PORT_FEAT_POWER;
+ status |= USB_PORT_STAT_POWER;
xhci_dbg(xhci, "Get port status returned 0x%x\n", status);
put_unaligned(cpu_to_le32(status), (__le32 *) buf);
break;
@@ -298,7 +298,6 @@
* Returns 0 if the status hasn't changed, or the number of bytes in buf.
* Ports are 0-indexed from the HCD point of view,
* and 1-indexed from the USB core pointer of view.
- * xHCI instances can have up to 127 ports, so FIXME if you see more than 15.
*
* Note that the status change bits will be cleared as soon as a port status
* change event is generated, so we use the saved status from that event.
@@ -315,14 +314,9 @@
ports = HCS_MAX_PORTS(xhci->hcs_params1);
/* Initial status is no changes */
- buf[0] = 0;
+ retval = (ports + 8) / 8;
+ memset(buf, 0, retval);
status = 0;
- if (ports > 7) {
- buf[1] = 0;
- retval = 2;
- } else {
- retval = 1;
- }
spin_lock_irqsave(&xhci->lock, flags);
/* For each port, did anything change? If so, set that bit in buf. */
@@ -331,10 +325,7 @@
NUM_PORT_REGS*i;
temp = xhci_readl(xhci, addr);
if (temp & (PORT_CSC | PORT_PEC | PORT_OCC)) {
- if (i < 7)
- buf[0] |= 1 << (i + 1);
- else
- buf[1] |= 1 << (i - 7);
+ buf[(i + 1) / 8] |= 1 << (i + 1) % 8;
status = 1;
}
}
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index d64f572..fd9e03a 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -41,13 +41,13 @@
seg = kzalloc(sizeof *seg, flags);
if (!seg)
- return 0;
+ return NULL;
xhci_dbg(xhci, "Allocating priv segment structure at %p\n", seg);
seg->trbs = dma_pool_alloc(xhci->segment_pool, flags, &dma);
if (!seg->trbs) {
kfree(seg);
- return 0;
+ return NULL;
}
xhci_dbg(xhci, "// Allocating segment at %p (virtual) 0x%llx (DMA)\n",
seg->trbs, (unsigned long long)dma);
@@ -159,7 +159,7 @@
ring = kzalloc(sizeof *(ring), flags);
xhci_dbg(xhci, "Allocating ring at %p\n", ring);
if (!ring)
- return 0;
+ return NULL;
INIT_LIST_HEAD(&ring->td_list);
if (num_segs == 0)
@@ -196,7 +196,7 @@
fail:
xhci_ring_free(xhci, ring);
- return 0;
+ return NULL;
}
void xhci_free_or_cache_endpoint_ring(struct xhci_hcd *xhci,
@@ -247,7 +247,7 @@
#define CTX_SIZE(_hcc) (HCC_64BYTE_CONTEXT(_hcc) ? 64 : 32)
-struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
+static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
int type, gfp_t flags)
{
struct xhci_container_ctx *ctx = kzalloc(sizeof(*ctx), flags);
@@ -265,7 +265,7 @@
return ctx;
}
-void xhci_free_container_ctx(struct xhci_hcd *xhci,
+static void xhci_free_container_ctx(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx)
{
if (!ctx)
@@ -304,6 +304,422 @@
(ctx->bytes + (ep_index * CTX_SIZE(xhci->hcc_params)));
}
+
+/***************** Streams structures manipulation *************************/
+
+void xhci_free_stream_ctx(struct xhci_hcd *xhci,
+ unsigned int num_stream_ctxs,
+ struct xhci_stream_ctx *stream_ctx, dma_addr_t dma)
+{
+ struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
+
+ if (num_stream_ctxs > MEDIUM_STREAM_ARRAY_SIZE)
+ pci_free_consistent(pdev,
+ sizeof(struct xhci_stream_ctx)*num_stream_ctxs,
+ stream_ctx, dma);
+ else if (num_stream_ctxs <= SMALL_STREAM_ARRAY_SIZE)
+ return dma_pool_free(xhci->small_streams_pool,
+ stream_ctx, dma);
+ else
+ return dma_pool_free(xhci->medium_streams_pool,
+ stream_ctx, dma);
+}
+
+/*
+ * The stream context array for each endpoint with bulk streams enabled can
+ * vary in size, based on:
+ * - how many streams the endpoint supports,
+ * - the maximum primary stream array size the host controller supports,
+ * - and how many streams the device driver asks for.
+ *
+ * The stream context array must be a power of 2, and can be as small as
+ * 64 bytes or as large as 1MB.
+ */
+struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci,
+ unsigned int num_stream_ctxs, dma_addr_t *dma,
+ gfp_t mem_flags)
+{
+ struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
+
+ if (num_stream_ctxs > MEDIUM_STREAM_ARRAY_SIZE)
+ return pci_alloc_consistent(pdev,
+ sizeof(struct xhci_stream_ctx)*num_stream_ctxs,
+ dma);
+ else if (num_stream_ctxs <= SMALL_STREAM_ARRAY_SIZE)
+ return dma_pool_alloc(xhci->small_streams_pool,
+ mem_flags, dma);
+ else
+ return dma_pool_alloc(xhci->medium_streams_pool,
+ mem_flags, dma);
+}
+
+struct xhci_ring *xhci_dma_to_transfer_ring(
+ struct xhci_virt_ep *ep,
+ u64 address)
+{
+ if (ep->ep_state & EP_HAS_STREAMS)
+ return radix_tree_lookup(&ep->stream_info->trb_address_map,
+ address >> SEGMENT_SHIFT);
+ return ep->ring;
+}
+
+/* Only use this when you know stream_info is valid */
+#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING
+static struct xhci_ring *dma_to_stream_ring(
+ struct xhci_stream_info *stream_info,
+ u64 address)
+{
+ return radix_tree_lookup(&stream_info->trb_address_map,
+ address >> SEGMENT_SHIFT);
+}
+#endif /* CONFIG_USB_XHCI_HCD_DEBUGGING */
+
+struct xhci_ring *xhci_stream_id_to_ring(
+ struct xhci_virt_device *dev,
+ unsigned int ep_index,
+ unsigned int stream_id)
+{
+ struct xhci_virt_ep *ep = &dev->eps[ep_index];
+
+ if (stream_id == 0)
+ return ep->ring;
+ if (!ep->stream_info)
+ return NULL;
+
+ if (stream_id > ep->stream_info->num_streams)
+ return NULL;
+ return ep->stream_info->stream_rings[stream_id];
+}
+
+struct xhci_ring *xhci_triad_to_transfer_ring(struct xhci_hcd *xhci,
+ unsigned int slot_id, unsigned int ep_index,
+ unsigned int stream_id)
+{
+ struct xhci_virt_ep *ep;
+
+ ep = &xhci->devs[slot_id]->eps[ep_index];
+ /* Common case: no streams */
+ if (!(ep->ep_state & EP_HAS_STREAMS))
+ return ep->ring;
+
+ if (stream_id == 0) {
+ xhci_warn(xhci,
+ "WARN: Slot ID %u, ep index %u has streams, "
+ "but URB has no stream ID.\n",
+ slot_id, ep_index);
+ return NULL;
+ }
+
+ if (stream_id < ep->stream_info->num_streams)
+ return ep->stream_info->stream_rings[stream_id];
+
+ xhci_warn(xhci,
+ "WARN: Slot ID %u, ep index %u has "
+ "stream IDs 1 to %u allocated, "
+ "but stream ID %u is requested.\n",
+ slot_id, ep_index,
+ ep->stream_info->num_streams - 1,
+ stream_id);
+ return NULL;
+}
+
+/* Get the right ring for the given URB.
+ * If the endpoint supports streams, boundary check the URB's stream ID.
+ * If the endpoint doesn't support streams, return the singular endpoint ring.
+ */
+struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci,
+ struct urb *urb)
+{
+ return xhci_triad_to_transfer_ring(xhci, urb->dev->slot_id,
+ xhci_get_endpoint_index(&urb->ep->desc), urb->stream_id);
+}
+
+#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING
+static int xhci_test_radix_tree(struct xhci_hcd *xhci,
+ unsigned int num_streams,
+ struct xhci_stream_info *stream_info)
+{
+ u32 cur_stream;
+ struct xhci_ring *cur_ring;
+ u64 addr;
+
+ for (cur_stream = 1; cur_stream < num_streams; cur_stream++) {
+ struct xhci_ring *mapped_ring;
+ int trb_size = sizeof(union xhci_trb);
+
+ cur_ring = stream_info->stream_rings[cur_stream];
+ for (addr = cur_ring->first_seg->dma;
+ addr < cur_ring->first_seg->dma + SEGMENT_SIZE;
+ addr += trb_size) {
+ mapped_ring = dma_to_stream_ring(stream_info, addr);
+ if (cur_ring != mapped_ring) {
+ xhci_warn(xhci, "WARN: DMA address 0x%08llx "
+ "didn't map to stream ID %u; "
+ "mapped to ring %p\n",
+ (unsigned long long) addr,
+ cur_stream,
+ mapped_ring);
+ return -EINVAL;
+ }
+ }
+ /* One TRB after the end of the ring segment shouldn't return a
+ * pointer to the current ring (although it may be a part of a
+ * different ring).
+ */
+ mapped_ring = dma_to_stream_ring(stream_info, addr);
+ if (mapped_ring != cur_ring) {
+ /* One TRB before should also fail */
+ addr = cur_ring->first_seg->dma - trb_size;
+ mapped_ring = dma_to_stream_ring(stream_info, addr);
+ }
+ if (mapped_ring == cur_ring) {
+ xhci_warn(xhci, "WARN: Bad DMA address 0x%08llx "
+ "mapped to valid stream ID %u; "
+ "mapped ring = %p\n",
+ (unsigned long long) addr,
+ cur_stream,
+ mapped_ring);
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+#endif /* CONFIG_USB_XHCI_HCD_DEBUGGING */
+
+/*
+ * Change an endpoint's internal structure so it supports stream IDs. The
+ * number of requested streams includes stream 0, which cannot be used by device
+ * drivers.
+ *
+ * The number of stream contexts in the stream context array may be bigger than
+ * the number of streams the driver wants to use. This is because the number of
+ * stream context array entries must be a power of two.
+ *
+ * We need a radix tree for mapping physical addresses of TRBs to which stream
+ * ID they belong to. We need to do this because the host controller won't tell
+ * us which stream ring the TRB came from. We could store the stream ID in an
+ * event data TRB, but that doesn't help us for the cancellation case, since the
+ * endpoint may stop before it reaches that event data TRB.
+ *
+ * The radix tree maps the upper portion of the TRB DMA address to a ring
+ * segment that has the same upper portion of DMA addresses. For example, say I
+ * have segments of size 1KB, that are always 64-byte aligned. A segment may
+ * start at 0x10c91000 and end at 0x10c913f0. If I use the upper 10 bits, the
+ * key to the stream ID is 0x43244. I can use the DMA address of the TRB to
+ * pass the radix tree a key to get the right stream ID:
+ *
+ * 0x10c90fff >> 10 = 0x43243
+ * 0x10c912c0 >> 10 = 0x43244
+ * 0x10c91400 >> 10 = 0x43245
+ *
+ * Obviously, only those TRBs with DMA addresses that are within the segment
+ * will make the radix tree return the stream ID for that ring.
+ *
+ * Caveats for the radix tree:
+ *
+ * The radix tree uses an unsigned long as a key pair. On 32-bit systems, an
+ * unsigned long will be 32-bits; on a 64-bit system an unsigned long will be
+ * 64-bits. Since we only request 32-bit DMA addresses, we can use that as the
+ * key on 32-bit or 64-bit systems (it would also be fine if we asked for 64-bit
+ * PCI DMA addresses on a 64-bit system). There might be a problem on 32-bit
+ * extended systems (where the DMA address can be bigger than 32-bits),
+ * if we allow the PCI dma mask to be bigger than 32-bits. So don't do that.
+ */
+struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci,
+ unsigned int num_stream_ctxs,
+ unsigned int num_streams, gfp_t mem_flags)
+{
+ struct xhci_stream_info *stream_info;
+ u32 cur_stream;
+ struct xhci_ring *cur_ring;
+ unsigned long key;
+ u64 addr;
+ int ret;
+
+ xhci_dbg(xhci, "Allocating %u streams and %u "
+ "stream context array entries.\n",
+ num_streams, num_stream_ctxs);
+ if (xhci->cmd_ring_reserved_trbs == MAX_RSVD_CMD_TRBS) {
+ xhci_dbg(xhci, "Command ring has no reserved TRBs available\n");
+ return NULL;
+ }
+ xhci->cmd_ring_reserved_trbs++;
+
+ stream_info = kzalloc(sizeof(struct xhci_stream_info), mem_flags);
+ if (!stream_info)
+ goto cleanup_trbs;
+
+ stream_info->num_streams = num_streams;
+ stream_info->num_stream_ctxs = num_stream_ctxs;
+
+ /* Initialize the array of virtual pointers to stream rings. */
+ stream_info->stream_rings = kzalloc(
+ sizeof(struct xhci_ring *)*num_streams,
+ mem_flags);
+ if (!stream_info->stream_rings)
+ goto cleanup_info;
+
+ /* Initialize the array of DMA addresses for stream rings for the HW. */
+ stream_info->stream_ctx_array = xhci_alloc_stream_ctx(xhci,
+ num_stream_ctxs, &stream_info->ctx_array_dma,
+ mem_flags);
+ if (!stream_info->stream_ctx_array)
+ goto cleanup_ctx;
+ memset(stream_info->stream_ctx_array, 0,
+ sizeof(struct xhci_stream_ctx)*num_stream_ctxs);
+
+ /* Allocate everything needed to free the stream rings later */
+ stream_info->free_streams_command =
+ xhci_alloc_command(xhci, true, true, mem_flags);
+ if (!stream_info->free_streams_command)
+ goto cleanup_ctx;
+
+ INIT_RADIX_TREE(&stream_info->trb_address_map, GFP_ATOMIC);
+
+ /* Allocate rings for all the streams that the driver will use,
+ * and add their segment DMA addresses to the radix tree.
+ * Stream 0 is reserved.
+ */
+ for (cur_stream = 1; cur_stream < num_streams; cur_stream++) {
+ stream_info->stream_rings[cur_stream] =
+ xhci_ring_alloc(xhci, 1, true, mem_flags);
+ cur_ring = stream_info->stream_rings[cur_stream];
+ if (!cur_ring)
+ goto cleanup_rings;
+ cur_ring->stream_id = cur_stream;
+ /* Set deq ptr, cycle bit, and stream context type */
+ addr = cur_ring->first_seg->dma |
+ SCT_FOR_CTX(SCT_PRI_TR) |
+ cur_ring->cycle_state;
+ stream_info->stream_ctx_array[cur_stream].stream_ring = addr;
+ xhci_dbg(xhci, "Setting stream %d ring ptr to 0x%08llx\n",
+ cur_stream, (unsigned long long) addr);
+
+ key = (unsigned long)
+ (cur_ring->first_seg->dma >> SEGMENT_SHIFT);
+ ret = radix_tree_insert(&stream_info->trb_address_map,
+ key, cur_ring);
+ if (ret) {
+ xhci_ring_free(xhci, cur_ring);
+ stream_info->stream_rings[cur_stream] = NULL;
+ goto cleanup_rings;
+ }
+ }
+ /* Leave the other unused stream ring pointers in the stream context
+ * array initialized to zero. This will cause the xHC to give us an
+ * error if the device asks for a stream ID we don't have setup (if it
+ * was any other way, the host controller would assume the ring is
+ * "empty" and wait forever for data to be queued to that stream ID).
+ */
+#if XHCI_DEBUG
+ /* Do a little test on the radix tree to make sure it returns the
+ * correct values.
+ */
+ if (xhci_test_radix_tree(xhci, num_streams, stream_info))
+ goto cleanup_rings;
+#endif
+
+ return stream_info;
+
+cleanup_rings:
+ for (cur_stream = 1; cur_stream < num_streams; cur_stream++) {
+ cur_ring = stream_info->stream_rings[cur_stream];
+ if (cur_ring) {
+ addr = cur_ring->first_seg->dma;
+ radix_tree_delete(&stream_info->trb_address_map,
+ addr >> SEGMENT_SHIFT);
+ xhci_ring_free(xhci, cur_ring);
+ stream_info->stream_rings[cur_stream] = NULL;
+ }
+ }
+ xhci_free_command(xhci, stream_info->free_streams_command);
+cleanup_ctx:
+ kfree(stream_info->stream_rings);
+cleanup_info:
+ kfree(stream_info);
+cleanup_trbs:
+ xhci->cmd_ring_reserved_trbs--;
+ return NULL;
+}
+/*
+ * Sets the MaxPStreams field and the Linear Stream Array field.
+ * Sets the dequeue pointer to the stream context array.
+ */
+void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci,
+ struct xhci_ep_ctx *ep_ctx,
+ struct xhci_stream_info *stream_info)
+{
+ u32 max_primary_streams;
+ /* MaxPStreams is the number of stream context array entries, not the
+ * number we're actually using. Must be in 2^(MaxPstreams + 1) format.
+ * fls(0) = 0, fls(0x1) = 1, fls(0x10) = 2, fls(0x100) = 3, etc.
+ */
+ max_primary_streams = fls(stream_info->num_stream_ctxs) - 2;
+ xhci_dbg(xhci, "Setting number of stream ctx array entries to %u\n",
+ 1 << (max_primary_streams + 1));
+ ep_ctx->ep_info &= ~EP_MAXPSTREAMS_MASK;
+ ep_ctx->ep_info |= EP_MAXPSTREAMS(max_primary_streams);
+ ep_ctx->ep_info |= EP_HAS_LSA;
+ ep_ctx->deq = stream_info->ctx_array_dma;
+}
+
+/*
+ * Sets the MaxPStreams field and the Linear Stream Array field to 0.
+ * Reinstalls the "normal" endpoint ring (at its previous dequeue mark,
+ * not at the beginning of the ring).
+ */
+void xhci_setup_no_streams_ep_input_ctx(struct xhci_hcd *xhci,
+ struct xhci_ep_ctx *ep_ctx,
+ struct xhci_virt_ep *ep)
+{
+ dma_addr_t addr;
+ ep_ctx->ep_info &= ~EP_MAXPSTREAMS_MASK;
+ ep_ctx->ep_info &= ~EP_HAS_LSA;
+ addr = xhci_trb_virt_to_dma(ep->ring->deq_seg, ep->ring->dequeue);
+ ep_ctx->deq = addr | ep->ring->cycle_state;
+}
+
+/* Frees all stream contexts associated with the endpoint,
+ *
+ * Caller should fix the endpoint context streams fields.
+ */
+void xhci_free_stream_info(struct xhci_hcd *xhci,
+ struct xhci_stream_info *stream_info)
+{
+ int cur_stream;
+ struct xhci_ring *cur_ring;
+ dma_addr_t addr;
+
+ if (!stream_info)
+ return;
+
+ for (cur_stream = 1; cur_stream < stream_info->num_streams;
+ cur_stream++) {
+ cur_ring = stream_info->stream_rings[cur_stream];
+ if (cur_ring) {
+ addr = cur_ring->first_seg->dma;
+ radix_tree_delete(&stream_info->trb_address_map,
+ addr >> SEGMENT_SHIFT);
+ xhci_ring_free(xhci, cur_ring);
+ stream_info->stream_rings[cur_stream] = NULL;
+ }
+ }
+ xhci_free_command(xhci, stream_info->free_streams_command);
+ xhci->cmd_ring_reserved_trbs--;
+ if (stream_info->stream_ctx_array)
+ xhci_free_stream_ctx(xhci,
+ stream_info->num_stream_ctxs,
+ stream_info->stream_ctx_array,
+ stream_info->ctx_array_dma);
+
+ if (stream_info)
+ kfree(stream_info->stream_rings);
+ kfree(stream_info);
+}
+
+
+/***************** Device context manipulation *************************/
+
static void xhci_init_endpoint_timer(struct xhci_hcd *xhci,
struct xhci_virt_ep *ep)
{
@@ -328,9 +744,13 @@
if (!dev)
return;
- for (i = 0; i < 31; ++i)
+ for (i = 0; i < 31; ++i) {
if (dev->eps[i].ring)
xhci_ring_free(xhci, dev->eps[i].ring);
+ if (dev->eps[i].stream_info)
+ xhci_free_stream_info(xhci,
+ dev->eps[i].stream_info);
+ }
if (dev->ring_cache) {
for (i = 0; i < dev->num_rings_cached; i++)
@@ -344,7 +764,7 @@
xhci_free_container_ctx(xhci, dev->out_ctx);
kfree(xhci->devs[slot_id]);
- xhci->devs[slot_id] = 0;
+ xhci->devs[slot_id] = NULL;
}
int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
@@ -590,9 +1010,9 @@
static inline u32 xhci_get_endpoint_mult(struct usb_device *udev,
struct usb_host_endpoint *ep)
{
- if (udev->speed != USB_SPEED_SUPER || !ep->ss_ep_comp)
+ if (udev->speed != USB_SPEED_SUPER)
return 0;
- return ep->ss_ep_comp->desc.bmAttributes;
+ return ep->ss_ep_comp.bmAttributes;
}
static inline u32 xhci_get_endpoint_type(struct usb_device *udev,
@@ -641,13 +1061,8 @@
usb_endpoint_xfer_bulk(&ep->desc))
return 0;
- if (udev->speed == USB_SPEED_SUPER) {
- if (ep->ss_ep_comp)
- return ep->ss_ep_comp->desc.wBytesPerInterval;
- xhci_warn(xhci, "WARN no SS endpoint companion descriptor.\n");
- /* Assume no bursts, no multiple opportunities to send. */
- return ep->desc.wMaxPacketSize;
- }
+ if (udev->speed == USB_SPEED_SUPER)
+ return ep->ss_ep_comp.wBytesPerInterval;
max_packet = ep->desc.wMaxPacketSize & 0x3ff;
max_burst = (ep->desc.wMaxPacketSize & 0x1800) >> 11;
@@ -655,6 +1070,9 @@
return max_packet * (max_burst + 1);
}
+/* Set up an endpoint with one ring segment. Do not allocate stream rings.
+ * Drivers will have to call usb_alloc_streams() to do that.
+ */
int xhci_endpoint_init(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
struct usb_device *udev,
@@ -708,12 +1126,9 @@
max_packet = ep->desc.wMaxPacketSize;
ep_ctx->ep_info2 |= MAX_PACKET(max_packet);
/* dig out max burst from ep companion desc */
- if (!ep->ss_ep_comp) {
- xhci_warn(xhci, "WARN no SS endpoint companion descriptor.\n");
- max_packet = 0;
- } else {
- max_packet = ep->ss_ep_comp->desc.bMaxBurst;
- }
+ max_packet = ep->ss_ep_comp.bMaxBurst;
+ if (!max_packet)
+ xhci_warn(xhci, "WARN no SS endpoint bMaxBurst\n");
ep_ctx->ep_info2 |= MAX_BURST(max_packet);
break;
case USB_SPEED_HIGH:
@@ -1003,6 +1418,16 @@
xhci->device_pool = NULL;
xhci_dbg(xhci, "Freed device context pool\n");
+ if (xhci->small_streams_pool)
+ dma_pool_destroy(xhci->small_streams_pool);
+ xhci->small_streams_pool = NULL;
+ xhci_dbg(xhci, "Freed small stream array pool\n");
+
+ if (xhci->medium_streams_pool)
+ dma_pool_destroy(xhci->medium_streams_pool);
+ xhci->medium_streams_pool = NULL;
+ xhci_dbg(xhci, "Freed medium stream array pool\n");
+
xhci_write_64(xhci, 0, &xhci->op_regs->dcbaa_ptr);
if (xhci->dcbaa)
pci_free_consistent(pdev, sizeof(*xhci->dcbaa),
@@ -1239,6 +1664,22 @@
if (!xhci->segment_pool || !xhci->device_pool)
goto fail;
+ /* Linear stream context arrays don't have any boundary restrictions,
+ * and only need to be 16-byte aligned.
+ */
+ xhci->small_streams_pool =
+ dma_pool_create("xHCI 256 byte stream ctx arrays",
+ dev, SMALL_STREAM_ARRAY_SIZE, 16, 0);
+ xhci->medium_streams_pool =
+ dma_pool_create("xHCI 1KB stream ctx arrays",
+ dev, MEDIUM_STREAM_ARRAY_SIZE, 16, 0);
+ /* Any stream context array bigger than MEDIUM_STREAM_ARRAY_SIZE
+ * will be allocated with pci_alloc_consistent()
+ */
+
+ if (!xhci->small_streams_pool || !xhci->medium_streams_pool)
+ goto fail;
+
/* Set up the command ring to have one segments for now. */
xhci->cmd_ring = xhci_ring_alloc(xhci, 1, true, flags);
if (!xhci->cmd_ring)
@@ -1330,7 +1771,7 @@
*/
init_completion(&xhci->addr_dev);
for (i = 0; i < MAX_HC_SLOTS; ++i)
- xhci->devs[i] = 0;
+ xhci->devs[i] = NULL;
if (scratchpad_alloc(xhci, flags))
goto fail;
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 417d37a..edffd81 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -54,7 +54,7 @@
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
int retval;
- hcd->self.sg_tablesize = TRBS_PER_SEGMENT - 1;
+ hcd->self.sg_tablesize = TRBS_PER_SEGMENT - 2;
xhci->cap_regs = hcd->regs;
xhci->op_regs = hcd->regs +
@@ -132,6 +132,8 @@
.urb_dequeue = xhci_urb_dequeue,
.alloc_dev = xhci_alloc_dev,
.free_dev = xhci_free_dev,
+ .alloc_streams = xhci_alloc_streams,
+ .free_streams = xhci_free_streams,
.add_endpoint = xhci_add_endpoint,
.drop_endpoint = xhci_drop_endpoint,
.endpoint_reset = xhci_endpoint_reset,
@@ -175,12 +177,12 @@
.shutdown = usb_hcd_pci_shutdown,
};
-int xhci_register_pci()
+int xhci_register_pci(void)
{
return pci_register_driver(&xhci_pci_driver);
}
-void xhci_unregister_pci()
+void xhci_unregister_pci(void)
{
pci_unregister_driver(&xhci_pci_driver);
}
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 85d7e8f..36c858e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -112,6 +112,12 @@
return (trb->link.control & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK);
}
+static inline int enqueue_is_link_trb(struct xhci_ring *ring)
+{
+ struct xhci_link_trb *link = &ring->enqueue->link;
+ return ((link->control & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK));
+}
+
/* Updates trb to point to the next TRB in the ring, and updates seg if the next
* TRB is in a new segment. This does not skip over link TRBs, and it does not
* effect the ring dequeue or enqueue pointers.
@@ -193,20 +199,15 @@
while (last_trb(xhci, ring, ring->enq_seg, next)) {
if (!consumer) {
if (ring != xhci->event_ring) {
- /* If we're not dealing with 0.95 hardware,
- * carry over the chain bit of the previous TRB
- * (which may mean the chain bit is cleared).
- */
- if (!xhci_link_trb_quirk(xhci)) {
- next->link.control &= ~TRB_CHAIN;
- next->link.control |= chain;
+ if (chain) {
+ next->link.control |= TRB_CHAIN;
+
+ /* Give this link TRB to the hardware */
+ wmb();
+ next->link.control ^= TRB_CYCLE;
+ } else {
+ break;
}
- /* Give this link TRB to the hardware */
- wmb();
- if (next->link.control & TRB_CYCLE)
- next->link.control &= (u32) ~TRB_CYCLE;
- else
- next->link.control |= (u32) TRB_CYCLE;
}
/* Toggle the cycle bit after the last ring segment. */
if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
@@ -242,10 +243,34 @@
int i;
union xhci_trb *enq = ring->enqueue;
struct xhci_segment *enq_seg = ring->enq_seg;
+ struct xhci_segment *cur_seg;
+ unsigned int left_on_ring;
+
+ /* If we are currently pointing to a link TRB, advance the
+ * enqueue pointer before checking for space */
+ while (last_trb(xhci, ring, enq_seg, enq)) {
+ enq_seg = enq_seg->next;
+ enq = enq_seg->trbs;
+ }
/* Check if ring is empty */
- if (enq == ring->dequeue)
+ if (enq == ring->dequeue) {
+ /* Can't use link trbs */
+ left_on_ring = TRBS_PER_SEGMENT - 1;
+ for (cur_seg = enq_seg->next; cur_seg != enq_seg;
+ cur_seg = cur_seg->next)
+ left_on_ring += TRBS_PER_SEGMENT - 1;
+
+ /* Always need one TRB free in the ring. */
+ left_on_ring -= 1;
+ if (num_trbs > left_on_ring) {
+ xhci_warn(xhci, "Not enough room on ring; "
+ "need %u TRBs, %u TRBs left\n",
+ num_trbs, left_on_ring);
+ return 0;
+ }
return 1;
+ }
/* Make sure there's an extra empty TRB available */
for (i = 0; i <= num_trbs; ++i) {
if (enq == ring->dequeue)
@@ -295,7 +320,8 @@
static void ring_ep_doorbell(struct xhci_hcd *xhci,
unsigned int slot_id,
- unsigned int ep_index)
+ unsigned int ep_index,
+ unsigned int stream_id)
{
struct xhci_virt_ep *ep;
unsigned int ep_state;
@@ -306,11 +332,16 @@
ep_state = ep->ep_state;
/* Don't ring the doorbell for this endpoint if there are pending
* cancellations because the we don't want to interrupt processing.
+ * We don't want to restart any stream rings if there's a set dequeue
+ * pointer command pending because the device can choose to start any
+ * stream once the endpoint is on the HW schedule.
+ * FIXME - check all the stream rings for pending cancellations.
*/
if (!(ep_state & EP_HALT_PENDING) && !(ep_state & SET_DEQ_PENDING)
&& !(ep_state & EP_HALTED)) {
field = xhci_readl(xhci, db_addr) & DB_MASK;
- xhci_writel(xhci, field | EPI_TO_DB(ep_index), db_addr);
+ field |= EPI_TO_DB(ep_index) | STREAM_ID_TO_DB(stream_id);
+ xhci_writel(xhci, field, db_addr);
/* Flush PCI posted writes - FIXME Matthew Wilcox says this
* isn't time-critical and we shouldn't make the CPU wait for
* the flush.
@@ -319,6 +350,31 @@
}
}
+/* Ring the doorbell for any rings with pending URBs */
+static void ring_doorbell_for_active_rings(struct xhci_hcd *xhci,
+ unsigned int slot_id,
+ unsigned int ep_index)
+{
+ unsigned int stream_id;
+ struct xhci_virt_ep *ep;
+
+ ep = &xhci->devs[slot_id]->eps[ep_index];
+
+ /* A ring has pending URBs if its TD list is not empty */
+ if (!(ep->ep_state & EP_HAS_STREAMS)) {
+ if (!(list_empty(&ep->ring->td_list)))
+ ring_ep_doorbell(xhci, slot_id, ep_index, 0);
+ return;
+ }
+
+ for (stream_id = 1; stream_id < ep->stream_info->num_streams;
+ stream_id++) {
+ struct xhci_stream_info *stream_info = ep->stream_info;
+ if (!list_empty(&stream_info->stream_rings[stream_id]->td_list))
+ ring_ep_doorbell(xhci, slot_id, ep_index, stream_id);
+ }
+}
+
/*
* Find the segment that trb is in. Start searching in start_seg.
* If we must move past a segment that has a link TRB with a toggle cycle state
@@ -334,13 +390,14 @@
while (cur_seg->trbs > trb ||
&cur_seg->trbs[TRBS_PER_SEGMENT - 1] < trb) {
generic_trb = &cur_seg->trbs[TRBS_PER_SEGMENT - 1].generic;
- if (TRB_TYPE(generic_trb->field[3]) == TRB_LINK &&
+ if ((generic_trb->field[3] & TRB_TYPE_BITMASK) ==
+ TRB_TYPE(TRB_LINK) &&
(generic_trb->field[3] & LINK_TOGGLE))
*cycle_state = ~(*cycle_state) & 0x1;
cur_seg = cur_seg->next;
if (cur_seg == start_seg)
/* Looped over the entire list. Oops! */
- return 0;
+ return NULL;
}
return cur_seg;
}
@@ -361,14 +418,23 @@
*/
void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
- struct xhci_td *cur_td, struct xhci_dequeue_state *state)
+ unsigned int stream_id, struct xhci_td *cur_td,
+ struct xhci_dequeue_state *state)
{
struct xhci_virt_device *dev = xhci->devs[slot_id];
- struct xhci_ring *ep_ring = dev->eps[ep_index].ring;
+ struct xhci_ring *ep_ring;
struct xhci_generic_trb *trb;
struct xhci_ep_ctx *ep_ctx;
dma_addr_t addr;
+ ep_ring = xhci_triad_to_transfer_ring(xhci, slot_id,
+ ep_index, stream_id);
+ if (!ep_ring) {
+ xhci_warn(xhci, "WARN can't find new dequeue state "
+ "for invalid stream ID %u.\n",
+ stream_id);
+ return;
+ }
state->new_cycle_state = 0;
xhci_dbg(xhci, "Finding segment containing stopped TRB.\n");
state->new_deq_seg = find_trb_seg(cur_td->start_seg,
@@ -390,7 +456,7 @@
BUG();
trb = &state->new_deq_ptr->generic;
- if (TRB_TYPE(trb->field[3]) == TRB_LINK &&
+ if ((trb->field[3] & TRB_TYPE_BITMASK) == TRB_TYPE(TRB_LINK) &&
(trb->field[3] & LINK_TOGGLE))
state->new_cycle_state = ~(state->new_cycle_state) & 0x1;
next_trb(xhci, ep_ring, &state->new_deq_seg, &state->new_deq_ptr);
@@ -448,11 +514,13 @@
}
static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id,
- unsigned int ep_index, struct xhci_segment *deq_seg,
+ unsigned int ep_index, unsigned int stream_id,
+ struct xhci_segment *deq_seg,
union xhci_trb *deq_ptr, u32 cycle_state);
void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
+ unsigned int stream_id,
struct xhci_dequeue_state *deq_state)
{
struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index];
@@ -464,7 +532,7 @@
deq_state->new_deq_ptr,
(unsigned long long)xhci_trb_virt_to_dma(deq_state->new_deq_seg, deq_state->new_deq_ptr),
deq_state->new_cycle_state);
- queue_set_tr_deq(xhci, slot_id, ep_index,
+ queue_set_tr_deq(xhci, slot_id, ep_index, stream_id,
deq_state->new_deq_seg,
deq_state->new_deq_ptr,
(u32) deq_state->new_cycle_state);
@@ -523,7 +591,7 @@
struct xhci_ring *ep_ring;
struct xhci_virt_ep *ep;
struct list_head *entry;
- struct xhci_td *cur_td = 0;
+ struct xhci_td *cur_td = NULL;
struct xhci_td *last_unlinked_td;
struct xhci_dequeue_state deq_state;
@@ -532,11 +600,10 @@
slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]);
ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]);
ep = &xhci->devs[slot_id]->eps[ep_index];
- ep_ring = ep->ring;
if (list_empty(&ep->cancelled_td_list)) {
xhci_stop_watchdog_timer_in_irq(xhci, ep);
- ring_ep_doorbell(xhci, slot_id, ep_index);
+ ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
return;
}
@@ -550,15 +617,36 @@
xhci_dbg(xhci, "Cancelling TD starting at %p, 0x%llx (dma).\n",
cur_td->first_trb,
(unsigned long long)xhci_trb_virt_to_dma(cur_td->start_seg, cur_td->first_trb));
+ ep_ring = xhci_urb_to_transfer_ring(xhci, cur_td->urb);
+ if (!ep_ring) {
+ /* This shouldn't happen unless a driver is mucking
+ * with the stream ID after submission. This will
+ * leave the TD on the hardware ring, and the hardware
+ * will try to execute it, and may access a buffer
+ * that has already been freed. In the best case, the
+ * hardware will execute it, and the event handler will
+ * ignore the completion event for that TD, since it was
+ * removed from the td_list for that endpoint. In
+ * short, don't muck with the stream ID after
+ * submission.
+ */
+ xhci_warn(xhci, "WARN Cancelled URB %p "
+ "has invalid stream ID %u.\n",
+ cur_td->urb,
+ cur_td->urb->stream_id);
+ goto remove_finished_td;
+ }
/*
* If we stopped on the TD we need to cancel, then we have to
* move the xHC endpoint ring dequeue pointer past this TD.
*/
if (cur_td == ep->stopped_td)
- xhci_find_new_dequeue_state(xhci, slot_id, ep_index, cur_td,
- &deq_state);
+ xhci_find_new_dequeue_state(xhci, slot_id, ep_index,
+ cur_td->urb->stream_id,
+ cur_td, &deq_state);
else
td_to_noop(xhci, ep_ring, cur_td);
+remove_finished_td:
/*
* The event handler won't see a completion for this TD anymore,
* so remove it from the endpoint ring's TD list. Keep it in
@@ -572,12 +660,16 @@
/* If necessary, queue a Set Transfer Ring Dequeue Pointer command */
if (deq_state.new_deq_ptr && deq_state.new_deq_seg) {
xhci_queue_new_dequeue_state(xhci,
- slot_id, ep_index, &deq_state);
+ slot_id, ep_index,
+ ep->stopped_td->urb->stream_id,
+ &deq_state);
xhci_ring_cmd_db(xhci);
} else {
- /* Otherwise just ring the doorbell to restart the ring */
- ring_ep_doorbell(xhci, slot_id, ep_index);
+ /* Otherwise ring the doorbell(s) to restart queued transfers */
+ ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
}
+ ep->stopped_td = NULL;
+ ep->stopped_trb = NULL;
/*
* Drop the lock and complete the URBs in the cancelled TD list.
@@ -734,6 +826,7 @@
{
unsigned int slot_id;
unsigned int ep_index;
+ unsigned int stream_id;
struct xhci_ring *ep_ring;
struct xhci_virt_device *dev;
struct xhci_ep_ctx *ep_ctx;
@@ -741,8 +834,19 @@
slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]);
ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]);
+ stream_id = TRB_TO_STREAM_ID(trb->generic.field[2]);
dev = xhci->devs[slot_id];
- ep_ring = dev->eps[ep_index].ring;
+
+ ep_ring = xhci_stream_id_to_ring(dev, ep_index, stream_id);
+ if (!ep_ring) {
+ xhci_warn(xhci, "WARN Set TR deq ptr command for "
+ "freed stream ID %u\n",
+ stream_id);
+ /* XXX: Harmless??? */
+ dev->eps[ep_index].ep_state &= ~SET_DEQ_PENDING;
+ return;
+ }
+
ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx);
@@ -787,7 +891,8 @@
}
dev->eps[ep_index].ep_state &= ~SET_DEQ_PENDING;
- ring_ep_doorbell(xhci, slot_id, ep_index);
+ /* Restart any rings with pending URBs */
+ ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
}
static void handle_reset_ep_completion(struct xhci_hcd *xhci,
@@ -796,11 +901,9 @@
{
int slot_id;
unsigned int ep_index;
- struct xhci_ring *ep_ring;
slot_id = TRB_TO_SLOT_ID(trb->generic.field[3]);
ep_index = TRB_TO_EP_INDEX(trb->generic.field[3]);
- ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
/* This command will only fail if the endpoint wasn't halted,
* but we don't care.
*/
@@ -818,9 +921,9 @@
false);
xhci_ring_cmd_db(xhci);
} else {
- /* Clear our internal halted state and restart the ring */
+ /* Clear our internal halted state and restart the ring(s) */
xhci->devs[slot_id]->eps[ep_index].ep_state &= ~EP_HALTED;
- ring_ep_doorbell(xhci, slot_id, ep_index);
+ ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
}
}
@@ -897,16 +1000,19 @@
* Configure endpoint commands can come from the USB core
* configuration or alt setting changes, or because the HW
* needed an extra configure endpoint command after a reset
- * endpoint command. In the latter case, the xHCI driver is
- * not waiting on the configure endpoint command.
+ * endpoint command or streams were being configured.
+ * If the command was for a halted endpoint, the xHCI driver
+ * is not waiting on the configure endpoint command.
*/
ctrl_ctx = xhci_get_input_control_ctx(xhci,
virt_dev->in_ctx);
/* Input ctx add_flags are the endpoint index plus one */
ep_index = xhci_last_valid_endpoint(ctrl_ctx->add_flags) - 1;
/* A usb_set_interface() call directly after clearing a halted
- * condition may race on this quirky hardware.
- * Not worth worrying about, since this is prototype hardware.
+ * condition may race on this quirky hardware. Not worth
+ * worrying about, since this is prototype hardware. Not sure
+ * if this will work for streams, but streams support was
+ * untested on this prototype.
*/
if (xhci->quirks & XHCI_RESET_EP_QUIRK &&
ep_index != (unsigned int) -1 &&
@@ -919,10 +1025,10 @@
xhci_dbg(xhci, "Completed config ep cmd - "
"last ep index = %d, state = %d\n",
ep_index, ep_state);
- /* Clear our internal halted state and restart ring */
+ /* Clear internal halted state and restart ring(s) */
xhci->devs[slot_id]->eps[ep_index].ep_state &=
~EP_HALTED;
- ring_ep_doorbell(xhci, slot_id, ep_index);
+ ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
break;
}
bandwidth_change:
@@ -1018,7 +1124,7 @@
do {
if (start_dma == 0)
- return 0;
+ return NULL;
/* We may get an event for a Link TRB in the middle of a TD */
end_seg_dma = xhci_trb_virt_to_dma(cur_seg,
&cur_seg->trbs[TRBS_PER_SEGMENT - 1]);
@@ -1040,7 +1146,7 @@
suspect_dma <= end_trb_dma))
return cur_seg;
}
- return 0;
+ return NULL;
} else {
/* Might still be somewhere in this segment */
if (suspect_dma >= start_dma && suspect_dma <= end_seg_dma)
@@ -1050,19 +1156,27 @@
start_dma = xhci_trb_virt_to_dma(cur_seg, &cur_seg->trbs[0]);
} while (cur_seg != start_seg);
- return 0;
+ return NULL;
}
static void xhci_cleanup_halted_endpoint(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
+ unsigned int stream_id,
struct xhci_td *td, union xhci_trb *event_trb)
{
struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index];
ep->ep_state |= EP_HALTED;
ep->stopped_td = td;
ep->stopped_trb = event_trb;
+ ep->stopped_stream = stream_id;
+
xhci_queue_reset_ep(xhci, slot_id, ep_index);
xhci_cleanup_stalled_ring(xhci, td->urb->dev, ep_index);
+
+ ep->stopped_td = NULL;
+ ep->stopped_trb = NULL;
+ ep->stopped_stream = 0;
+
xhci_ring_cmd_db(xhci);
}
@@ -1119,11 +1233,11 @@
struct xhci_ring *ep_ring;
unsigned int slot_id;
int ep_index;
- struct xhci_td *td = 0;
+ struct xhci_td *td = NULL;
dma_addr_t event_dma;
struct xhci_segment *event_seg;
union xhci_trb *event_trb;
- struct urb *urb = 0;
+ struct urb *urb = NULL;
int status = -EINPROGRESS;
struct xhci_ep_ctx *ep_ctx;
u32 trb_comp_code;
@@ -1140,10 +1254,11 @@
ep_index = TRB_TO_EP_ID(event->flags) - 1;
xhci_dbg(xhci, "%s - ep index = %d\n", __func__, ep_index);
ep = &xdev->eps[ep_index];
- ep_ring = ep->ring;
+ ep_ring = xhci_dma_to_transfer_ring(ep, event->buffer);
ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
if (!ep_ring || (ep_ctx->ep_info & EP_STATE_MASK) == EP_STATE_DISABLED) {
- xhci_err(xhci, "ERROR Transfer event pointed to disabled endpoint\n");
+ xhci_err(xhci, "ERROR Transfer event for disabled endpoint "
+ "or incorrect stream ring\n");
return -ENODEV;
}
@@ -1274,7 +1389,7 @@
td->urb->actual_length = 0;
xhci_cleanup_halted_endpoint(xhci,
- slot_id, ep_index, td, event_trb);
+ slot_id, ep_index, 0, td, event_trb);
goto td_cleanup;
}
/*
@@ -1390,8 +1505,10 @@
for (cur_trb = ep_ring->dequeue, cur_seg = ep_ring->deq_seg;
cur_trb != event_trb;
next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) {
- if (TRB_TYPE(cur_trb->generic.field[3]) != TRB_TR_NOOP &&
- TRB_TYPE(cur_trb->generic.field[3]) != TRB_LINK)
+ if ((cur_trb->generic.field[3] &
+ TRB_TYPE_BITMASK) != TRB_TYPE(TRB_TR_NOOP) &&
+ (cur_trb->generic.field[3] &
+ TRB_TYPE_BITMASK) != TRB_TYPE(TRB_LINK))
td->urb->actual_length +=
TRB_LEN(cur_trb->generic.field[2]);
}
@@ -1423,6 +1540,7 @@
*/
ep->stopped_td = td;
ep->stopped_trb = event_trb;
+ ep->stopped_stream = ep_ring->stream_id;
} else if (xhci_requires_manual_halt_cleanup(xhci,
ep_ctx, trb_comp_code)) {
/* Other types of errors halt the endpoint, but the
@@ -1431,7 +1549,7 @@
* xHCI hardware manually.
*/
xhci_cleanup_halted_endpoint(xhci,
- slot_id, ep_index, td, event_trb);
+ slot_id, ep_index, ep_ring->stream_id, td, event_trb);
} else {
/* Update ring dequeue pointer */
while (ep_ring->dequeue != td->last_trb)
@@ -1621,20 +1739,66 @@
xhci_err(xhci, "ERROR no room on ep ring\n");
return -ENOMEM;
}
+
+ if (enqueue_is_link_trb(ep_ring)) {
+ struct xhci_ring *ring = ep_ring;
+ union xhci_trb *next;
+
+ xhci_dbg(xhci, "prepare_ring: pointing to link trb\n");
+ next = ring->enqueue;
+
+ while (last_trb(xhci, ring, ring->enq_seg, next)) {
+
+ /* If we're not dealing with 0.95 hardware,
+ * clear the chain bit.
+ */
+ if (!xhci_link_trb_quirk(xhci))
+ next->link.control &= ~TRB_CHAIN;
+ else
+ next->link.control |= TRB_CHAIN;
+
+ wmb();
+ next->link.control ^= (u32) TRB_CYCLE;
+
+ /* Toggle the cycle bit after the last ring segment. */
+ if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
+ ring->cycle_state = (ring->cycle_state ? 0 : 1);
+ if (!in_interrupt()) {
+ xhci_dbg(xhci, "queue_trb: Toggle cycle "
+ "state for ring %p = %i\n",
+ ring, (unsigned int)ring->cycle_state);
+ }
+ }
+ ring->enq_seg = ring->enq_seg->next;
+ ring->enqueue = ring->enq_seg->trbs;
+ next = ring->enqueue;
+ }
+ }
+
return 0;
}
static int prepare_transfer(struct xhci_hcd *xhci,
struct xhci_virt_device *xdev,
unsigned int ep_index,
+ unsigned int stream_id,
unsigned int num_trbs,
struct urb *urb,
struct xhci_td **td,
gfp_t mem_flags)
{
int ret;
+ struct xhci_ring *ep_ring;
struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
- ret = prepare_ring(xhci, xdev->eps[ep_index].ring,
+
+ ep_ring = xhci_stream_id_to_ring(xdev, ep_index, stream_id);
+ if (!ep_ring) {
+ xhci_dbg(xhci, "Can't prepare ring for bad stream ID %u\n",
+ stream_id);
+ return -EINVAL;
+ }
+
+ ret = prepare_ring(xhci, ep_ring,
ep_ctx->ep_info & EP_STATE_MASK,
num_trbs, mem_flags);
if (ret)
@@ -1654,9 +1818,9 @@
(*td)->urb = urb;
urb->hcpriv = (void *) (*td);
/* Add this TD to the tail of the endpoint ring's TD list */
- list_add_tail(&(*td)->td_list, &xdev->eps[ep_index].ring->td_list);
- (*td)->start_seg = xdev->eps[ep_index].ring->enq_seg;
- (*td)->first_trb = xdev->eps[ep_index].ring->enqueue;
+ list_add_tail(&(*td)->td_list, &ep_ring->td_list);
+ (*td)->start_seg = ep_ring->enq_seg;
+ (*td)->first_trb = ep_ring->enqueue;
return 0;
}
@@ -1672,7 +1836,7 @@
xhci_dbg(xhci, "count sg list trbs: \n");
num_trbs = 0;
- for_each_sg(urb->sg->sg, sg, num_sgs, i) {
+ for_each_sg(urb->sg, sg, num_sgs, i) {
unsigned int previous_total_trbs = num_trbs;
unsigned int len = sg_dma_len(sg);
@@ -1722,7 +1886,7 @@
}
static void giveback_first_trb(struct xhci_hcd *xhci, int slot_id,
- unsigned int ep_index, int start_cycle,
+ unsigned int ep_index, unsigned int stream_id, int start_cycle,
struct xhci_generic_trb *start_trb, struct xhci_td *td)
{
/*
@@ -1731,7 +1895,7 @@
*/
wmb();
start_trb->field[3] |= start_cycle;
- ring_ep_doorbell(xhci, slot_id, ep_index);
+ ring_ep_doorbell(xhci, slot_id, ep_index, stream_id);
}
/*
@@ -1805,12 +1969,16 @@
struct xhci_generic_trb *start_trb;
int start_cycle;
- ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
+ ep_ring = xhci_urb_to_transfer_ring(xhci, urb);
+ if (!ep_ring)
+ return -EINVAL;
+
num_trbs = count_sg_trbs_needed(xhci, urb);
num_sgs = urb->num_sgs;
trb_buff_len = prepare_transfer(xhci, xhci->devs[slot_id],
- ep_index, num_trbs, urb, &td, mem_flags);
+ ep_index, urb->stream_id,
+ num_trbs, urb, &td, mem_flags);
if (trb_buff_len < 0)
return trb_buff_len;
/*
@@ -1831,7 +1999,7 @@
* the amount of memory allocated for this scatter-gather list.
* 3. TRBs buffers can't cross 64KB boundaries.
*/
- sg = urb->sg->sg;
+ sg = urb->sg;
addr = (u64) sg_dma_address(sg);
this_sg_len = sg_dma_len(sg);
trb_buff_len = TRB_MAX_BUFF_SIZE -
@@ -1919,7 +2087,8 @@
} while (running_total < urb->transfer_buffer_length);
check_trb_math(urb, num_trbs, running_total);
- giveback_first_trb(xhci, slot_id, ep_index, start_cycle, start_trb, td);
+ giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id,
+ start_cycle, start_trb, td);
return 0;
}
@@ -1938,10 +2107,12 @@
int running_total, trb_buff_len, ret;
u64 addr;
- if (urb->sg)
+ if (urb->num_sgs)
return queue_bulk_sg_tx(xhci, mem_flags, urb, slot_id, ep_index);
- ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
+ ep_ring = xhci_urb_to_transfer_ring(xhci, urb);
+ if (!ep_ring)
+ return -EINVAL;
num_trbs = 0;
/* How much data is (potentially) left before the 64KB boundary? */
@@ -1968,7 +2139,8 @@
(unsigned long long)urb->transfer_dma,
num_trbs);
- ret = prepare_transfer(xhci, xhci->devs[slot_id], ep_index,
+ ret = prepare_transfer(xhci, xhci->devs[slot_id],
+ ep_index, urb->stream_id,
num_trbs, urb, &td, mem_flags);
if (ret < 0)
return ret;
@@ -2038,7 +2210,8 @@
} while (running_total < urb->transfer_buffer_length);
check_trb_math(urb, num_trbs, running_total);
- giveback_first_trb(xhci, slot_id, ep_index, start_cycle, start_trb, td);
+ giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id,
+ start_cycle, start_trb, td);
return 0;
}
@@ -2055,7 +2228,9 @@
u32 field, length_field;
struct xhci_td *td;
- ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
+ ep_ring = xhci_urb_to_transfer_ring(xhci, urb);
+ if (!ep_ring)
+ return -EINVAL;
/*
* Need to copy setup packet into setup TRB, so we can't use the setup
@@ -2076,8 +2251,9 @@
*/
if (urb->transfer_buffer_length > 0)
num_trbs++;
- ret = prepare_transfer(xhci, xhci->devs[slot_id], ep_index, num_trbs,
- urb, &td, mem_flags);
+ ret = prepare_transfer(xhci, xhci->devs[slot_id],
+ ep_index, urb->stream_id,
+ num_trbs, urb, &td, mem_flags);
if (ret < 0)
return ret;
@@ -2132,7 +2308,8 @@
/* Event on completion */
field | TRB_IOC | TRB_TYPE(TRB_STATUS) | ep_ring->cycle_state);
- giveback_first_trb(xhci, slot_id, ep_index, start_cycle, start_trb, td);
+ giveback_first_trb(xhci, slot_id, ep_index, 0,
+ start_cycle, start_trb, td);
return 0;
}
@@ -2244,12 +2421,14 @@
* This should not be used for endpoints that have streams enabled.
*/
static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id,
- unsigned int ep_index, struct xhci_segment *deq_seg,
+ unsigned int ep_index, unsigned int stream_id,
+ struct xhci_segment *deq_seg,
union xhci_trb *deq_ptr, u32 cycle_state)
{
dma_addr_t addr;
u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id);
u32 trb_ep_index = EP_ID_FOR_TRB(ep_index);
+ u32 trb_stream_id = STREAM_ID_FOR_TRB(stream_id);
u32 type = TRB_TYPE(TRB_SET_DEQ);
addr = xhci_trb_virt_to_dma(deq_seg, deq_ptr);
@@ -2260,7 +2439,7 @@
return 0;
}
return queue_command(xhci, lower_32_bits(addr) | cycle_state,
- upper_32_bits(addr), 0,
+ upper_32_bits(addr), trb_stream_id,
trb_slot_id | trb_ep_index | type, false);
}
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 7e42772..40e0a0c 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -21,6 +21,7 @@
*/
#include <linux/irq.h>
+#include <linux/log2.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
@@ -352,11 +353,7 @@
if (!xhci->devs[i])
continue;
for (j = 0; j < 31; ++j) {
- struct xhci_ring *ring = xhci->devs[i]->eps[j].ring;
- if (!ring)
- continue;
- xhci_dbg(xhci, "Dev %d endpoint ring %d:\n", i, j);
- xhci_debug_segment(xhci, ring->deq_seg);
+ xhci_dbg_ep_rings(xhci, i, j, &xhci->devs[i]->eps[j]);
}
}
@@ -726,8 +723,21 @@
spin_lock_irqsave(&xhci->lock, flags);
if (xhci->xhc_state & XHCI_STATE_DYING)
goto dying;
- ret = xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb,
- slot_id, ep_index);
+ if (xhci->devs[slot_id]->eps[ep_index].ep_state &
+ EP_GETTING_STREAMS) {
+ xhci_warn(xhci, "WARN: Can't enqueue URB while bulk ep "
+ "is transitioning to using streams.\n");
+ ret = -EINVAL;
+ } else if (xhci->devs[slot_id]->eps[ep_index].ep_state &
+ EP_GETTING_NO_STREAMS) {
+ xhci_warn(xhci, "WARN: Can't enqueue URB while bulk ep "
+ "is transitioning to "
+ "not having streams.\n");
+ ret = -EINVAL;
+ } else {
+ ret = xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb,
+ slot_id, ep_index);
+ }
spin_unlock_irqrestore(&xhci->lock, flags);
} else if (usb_endpoint_xfer_int(&urb->ep->desc)) {
spin_lock_irqsave(&xhci->lock, flags);
@@ -825,7 +835,12 @@
xhci_debug_ring(xhci, xhci->event_ring);
ep_index = xhci_get_endpoint_index(&urb->ep->desc);
ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index];
- ep_ring = ep->ring;
+ ep_ring = xhci_urb_to_transfer_ring(xhci, urb);
+ if (!ep_ring) {
+ ret = -EINVAL;
+ goto done;
+ }
+
xhci_dbg(xhci, "Endpoint ring:\n");
xhci_debug_ring(xhci, ep_ring);
td = (struct xhci_td *) urb->hcpriv;
@@ -1369,7 +1384,7 @@
* or it will attempt to resend it on the next doorbell ring.
*/
xhci_find_new_dequeue_state(xhci, udev->slot_id,
- ep_index, ep->stopped_td,
+ ep_index, ep->stopped_stream, ep->stopped_td,
&deq_state);
/* HW with the reset endpoint quirk will use the saved dequeue state to
@@ -1378,10 +1393,12 @@
if (!(xhci->quirks & XHCI_RESET_EP_QUIRK)) {
xhci_dbg(xhci, "Queueing new dequeue state\n");
xhci_queue_new_dequeue_state(xhci, udev->slot_id,
- ep_index, &deq_state);
+ ep_index, ep->stopped_stream, &deq_state);
} else {
/* Better hope no one uses the input context between now and the
* reset endpoint completion!
+ * XXX: No idea how this hardware will react when stream rings
+ * are enabled.
*/
xhci_dbg(xhci, "Setting up input context for "
"configure endpoint command\n");
@@ -1438,12 +1455,391 @@
kfree(virt_ep->stopped_td);
xhci_ring_cmd_db(xhci);
}
+ virt_ep->stopped_td = NULL;
+ virt_ep->stopped_trb = NULL;
+ virt_ep->stopped_stream = 0;
spin_unlock_irqrestore(&xhci->lock, flags);
if (ret)
xhci_warn(xhci, "FIXME allocate a new ring segment\n");
}
+static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,
+ struct usb_device *udev, struct usb_host_endpoint *ep,
+ unsigned int slot_id)
+{
+ int ret;
+ unsigned int ep_index;
+ unsigned int ep_state;
+
+ if (!ep)
+ return -EINVAL;
+ ret = xhci_check_args(xhci_to_hcd(xhci), udev, ep, 1, __func__);
+ if (ret <= 0)
+ return -EINVAL;
+ if (ep->ss_ep_comp.bmAttributes == 0) {
+ xhci_warn(xhci, "WARN: SuperSpeed Endpoint Companion"
+ " descriptor for ep 0x%x does not support streams\n",
+ ep->desc.bEndpointAddress);
+ return -EINVAL;
+ }
+
+ ep_index = xhci_get_endpoint_index(&ep->desc);
+ ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state;
+ if (ep_state & EP_HAS_STREAMS ||
+ ep_state & EP_GETTING_STREAMS) {
+ xhci_warn(xhci, "WARN: SuperSpeed bulk endpoint 0x%x "
+ "already has streams set up.\n",
+ ep->desc.bEndpointAddress);
+ xhci_warn(xhci, "Send email to xHCI maintainer and ask for "
+ "dynamic stream context array reallocation.\n");
+ return -EINVAL;
+ }
+ if (!list_empty(&xhci->devs[slot_id]->eps[ep_index].ring->td_list)) {
+ xhci_warn(xhci, "Cannot setup streams for SuperSpeed bulk "
+ "endpoint 0x%x; URBs are pending.\n",
+ ep->desc.bEndpointAddress);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void xhci_calculate_streams_entries(struct xhci_hcd *xhci,
+ unsigned int *num_streams, unsigned int *num_stream_ctxs)
+{
+ unsigned int max_streams;
+
+ /* The stream context array size must be a power of two */
+ *num_stream_ctxs = roundup_pow_of_two(*num_streams);
+ /*
+ * Find out how many primary stream array entries the host controller
+ * supports. Later we may use secondary stream arrays (similar to 2nd
+ * level page entries), but that's an optional feature for xHCI host
+ * controllers. xHCs must support at least 4 stream IDs.
+ */
+ max_streams = HCC_MAX_PSA(xhci->hcc_params);
+ if (*num_stream_ctxs > max_streams) {
+ xhci_dbg(xhci, "xHCI HW only supports %u stream ctx entries.\n",
+ max_streams);
+ *num_stream_ctxs = max_streams;
+ *num_streams = max_streams;
+ }
+}
+
+/* Returns an error code if one of the endpoint already has streams.
+ * This does not change any data structures, it only checks and gathers
+ * information.
+ */
+static int xhci_calculate_streams_and_bitmask(struct xhci_hcd *xhci,
+ struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ unsigned int *num_streams, u32 *changed_ep_bitmask)
+{
+ unsigned int max_streams;
+ unsigned int endpoint_flag;
+ int i;
+ int ret;
+
+ for (i = 0; i < num_eps; i++) {
+ ret = xhci_check_streams_endpoint(xhci, udev,
+ eps[i], udev->slot_id);
+ if (ret < 0)
+ return ret;
+
+ max_streams = USB_SS_MAX_STREAMS(
+ eps[i]->ss_ep_comp.bmAttributes);
+ if (max_streams < (*num_streams - 1)) {
+ xhci_dbg(xhci, "Ep 0x%x only supports %u stream IDs.\n",
+ eps[i]->desc.bEndpointAddress,
+ max_streams);
+ *num_streams = max_streams+1;
+ }
+
+ endpoint_flag = xhci_get_endpoint_flag(&eps[i]->desc);
+ if (*changed_ep_bitmask & endpoint_flag)
+ return -EINVAL;
+ *changed_ep_bitmask |= endpoint_flag;
+ }
+ return 0;
+}
+
+static u32 xhci_calculate_no_streams_bitmask(struct xhci_hcd *xhci,
+ struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps)
+{
+ u32 changed_ep_bitmask = 0;
+ unsigned int slot_id;
+ unsigned int ep_index;
+ unsigned int ep_state;
+ int i;
+
+ slot_id = udev->slot_id;
+ if (!xhci->devs[slot_id])
+ return 0;
+
+ for (i = 0; i < num_eps; i++) {
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state;
+ /* Are streams already being freed for the endpoint? */
+ if (ep_state & EP_GETTING_NO_STREAMS) {
+ xhci_warn(xhci, "WARN Can't disable streams for "
+ "endpoint 0x%x\n, "
+ "streams are being disabled already.",
+ eps[i]->desc.bEndpointAddress);
+ return 0;
+ }
+ /* Are there actually any streams to free? */
+ if (!(ep_state & EP_HAS_STREAMS) &&
+ !(ep_state & EP_GETTING_STREAMS)) {
+ xhci_warn(xhci, "WARN Can't disable streams for "
+ "endpoint 0x%x\n, "
+ "streams are already disabled!",
+ eps[i]->desc.bEndpointAddress);
+ xhci_warn(xhci, "WARN xhci_free_streams() called "
+ "with non-streams endpoint\n");
+ return 0;
+ }
+ changed_ep_bitmask |= xhci_get_endpoint_flag(&eps[i]->desc);
+ }
+ return changed_ep_bitmask;
+}
+
+/*
+ * The USB device drivers use this function (though the HCD interface in USB
+ * core) to prepare a set of bulk endpoints to use streams. Streams are used to
+ * coordinate mass storage command queueing across multiple endpoints (basically
+ * a stream ID == a task ID).
+ *
+ * Setting up streams involves allocating the same size stream context array
+ * for each endpoint and issuing a configure endpoint command for all endpoints.
+ *
+ * Don't allow the call to succeed if one endpoint only supports one stream
+ * (which means it doesn't support streams at all).
+ *
+ * Drivers may get less stream IDs than they asked for, if the host controller
+ * hardware or endpoints claim they can't support the number of requested
+ * stream IDs.
+ */
+int xhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ unsigned int num_streams, gfp_t mem_flags)
+{
+ int i, ret;
+ struct xhci_hcd *xhci;
+ struct xhci_virt_device *vdev;
+ struct xhci_command *config_cmd;
+ unsigned int ep_index;
+ unsigned int num_stream_ctxs;
+ unsigned long flags;
+ u32 changed_ep_bitmask = 0;
+
+ if (!eps)
+ return -EINVAL;
+
+ /* Add one to the number of streams requested to account for
+ * stream 0 that is reserved for xHCI usage.
+ */
+ num_streams += 1;
+ xhci = hcd_to_xhci(hcd);
+ xhci_dbg(xhci, "Driver wants %u stream IDs (including stream 0).\n",
+ num_streams);
+
+ config_cmd = xhci_alloc_command(xhci, true, true, mem_flags);
+ if (!config_cmd) {
+ xhci_dbg(xhci, "Could not allocate xHCI command structure.\n");
+ return -ENOMEM;
+ }
+
+ /* Check to make sure all endpoints are not already configured for
+ * streams. While we're at it, find the maximum number of streams that
+ * all the endpoints will support and check for duplicate endpoints.
+ */
+ spin_lock_irqsave(&xhci->lock, flags);
+ ret = xhci_calculate_streams_and_bitmask(xhci, udev, eps,
+ num_eps, &num_streams, &changed_ep_bitmask);
+ if (ret < 0) {
+ xhci_free_command(xhci, config_cmd);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ return ret;
+ }
+ if (num_streams <= 1) {
+ xhci_warn(xhci, "WARN: endpoints can't handle "
+ "more than one stream.\n");
+ xhci_free_command(xhci, config_cmd);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ return -EINVAL;
+ }
+ vdev = xhci->devs[udev->slot_id];
+ /* Mark each endpoint as being in transistion, so
+ * xhci_urb_enqueue() will reject all URBs.
+ */
+ for (i = 0; i < num_eps; i++) {
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ vdev->eps[ep_index].ep_state |= EP_GETTING_STREAMS;
+ }
+ spin_unlock_irqrestore(&xhci->lock, flags);
+
+ /* Setup internal data structures and allocate HW data structures for
+ * streams (but don't install the HW structures in the input context
+ * until we're sure all memory allocation succeeded).
+ */
+ xhci_calculate_streams_entries(xhci, &num_streams, &num_stream_ctxs);
+ xhci_dbg(xhci, "Need %u stream ctx entries for %u stream IDs.\n",
+ num_stream_ctxs, num_streams);
+
+ for (i = 0; i < num_eps; i++) {
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ vdev->eps[ep_index].stream_info = xhci_alloc_stream_info(xhci,
+ num_stream_ctxs,
+ num_streams, mem_flags);
+ if (!vdev->eps[ep_index].stream_info)
+ goto cleanup;
+ /* Set maxPstreams in endpoint context and update deq ptr to
+ * point to stream context array. FIXME
+ */
+ }
+
+ /* Set up the input context for a configure endpoint command. */
+ for (i = 0; i < num_eps; i++) {
+ struct xhci_ep_ctx *ep_ctx;
+
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ ep_ctx = xhci_get_ep_ctx(xhci, config_cmd->in_ctx, ep_index);
+
+ xhci_endpoint_copy(xhci, config_cmd->in_ctx,
+ vdev->out_ctx, ep_index);
+ xhci_setup_streams_ep_input_ctx(xhci, ep_ctx,
+ vdev->eps[ep_index].stream_info);
+ }
+ /* Tell the HW to drop its old copy of the endpoint context info
+ * and add the updated copy from the input context.
+ */
+ xhci_setup_input_ctx_for_config_ep(xhci, config_cmd->in_ctx,
+ vdev->out_ctx, changed_ep_bitmask, changed_ep_bitmask);
+
+ /* Issue and wait for the configure endpoint command */
+ ret = xhci_configure_endpoint(xhci, udev, config_cmd,
+ false, false);
+
+ /* xHC rejected the configure endpoint command for some reason, so we
+ * leave the old ring intact and free our internal streams data
+ * structure.
+ */
+ if (ret < 0)
+ goto cleanup;
+
+ spin_lock_irqsave(&xhci->lock, flags);
+ for (i = 0; i < num_eps; i++) {
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ vdev->eps[ep_index].ep_state &= ~EP_GETTING_STREAMS;
+ xhci_dbg(xhci, "Slot %u ep ctx %u now has streams.\n",
+ udev->slot_id, ep_index);
+ vdev->eps[ep_index].ep_state |= EP_HAS_STREAMS;
+ }
+ xhci_free_command(xhci, config_cmd);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+
+ /* Subtract 1 for stream 0, which drivers can't use */
+ return num_streams - 1;
+
+cleanup:
+ /* If it didn't work, free the streams! */
+ for (i = 0; i < num_eps; i++) {
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ xhci_free_stream_info(xhci, vdev->eps[ep_index].stream_info);
+ vdev->eps[ep_index].stream_info = NULL;
+ /* FIXME Unset maxPstreams in endpoint context and
+ * update deq ptr to point to normal string ring.
+ */
+ vdev->eps[ep_index].ep_state &= ~EP_GETTING_STREAMS;
+ vdev->eps[ep_index].ep_state &= ~EP_HAS_STREAMS;
+ xhci_endpoint_zero(xhci, vdev, eps[i]);
+ }
+ xhci_free_command(xhci, config_cmd);
+ return -ENOMEM;
+}
+
+/* Transition the endpoint from using streams to being a "normal" endpoint
+ * without streams.
+ *
+ * Modify the endpoint context state, submit a configure endpoint command,
+ * and free all endpoint rings for streams if that completes successfully.
+ */
+int xhci_free_streams(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ gfp_t mem_flags)
+{
+ int i, ret;
+ struct xhci_hcd *xhci;
+ struct xhci_virt_device *vdev;
+ struct xhci_command *command;
+ unsigned int ep_index;
+ unsigned long flags;
+ u32 changed_ep_bitmask;
+
+ xhci = hcd_to_xhci(hcd);
+ vdev = xhci->devs[udev->slot_id];
+
+ /* Set up a configure endpoint command to remove the streams rings */
+ spin_lock_irqsave(&xhci->lock, flags);
+ changed_ep_bitmask = xhci_calculate_no_streams_bitmask(xhci,
+ udev, eps, num_eps);
+ if (changed_ep_bitmask == 0) {
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ return -EINVAL;
+ }
+
+ /* Use the xhci_command structure from the first endpoint. We may have
+ * allocated too many, but the driver may call xhci_free_streams() for
+ * each endpoint it grouped into one call to xhci_alloc_streams().
+ */
+ ep_index = xhci_get_endpoint_index(&eps[0]->desc);
+ command = vdev->eps[ep_index].stream_info->free_streams_command;
+ for (i = 0; i < num_eps; i++) {
+ struct xhci_ep_ctx *ep_ctx;
+
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ ep_ctx = xhci_get_ep_ctx(xhci, command->in_ctx, ep_index);
+ xhci->devs[udev->slot_id]->eps[ep_index].ep_state |=
+ EP_GETTING_NO_STREAMS;
+
+ xhci_endpoint_copy(xhci, command->in_ctx,
+ vdev->out_ctx, ep_index);
+ xhci_setup_no_streams_ep_input_ctx(xhci, ep_ctx,
+ &vdev->eps[ep_index]);
+ }
+ xhci_setup_input_ctx_for_config_ep(xhci, command->in_ctx,
+ vdev->out_ctx, changed_ep_bitmask, changed_ep_bitmask);
+ spin_unlock_irqrestore(&xhci->lock, flags);
+
+ /* Issue and wait for the configure endpoint command,
+ * which must succeed.
+ */
+ ret = xhci_configure_endpoint(xhci, udev, command,
+ false, true);
+
+ /* xHC rejected the configure endpoint command for some reason, so we
+ * leave the streams rings intact.
+ */
+ if (ret < 0)
+ return ret;
+
+ spin_lock_irqsave(&xhci->lock, flags);
+ for (i = 0; i < num_eps; i++) {
+ ep_index = xhci_get_endpoint_index(&eps[i]->desc);
+ xhci_free_stream_info(xhci, vdev->eps[ep_index].stream_info);
+ vdev->eps[ep_index].stream_info = NULL;
+ /* FIXME Unset maxPstreams in endpoint context and
+ * update deq ptr to point to normal string ring.
+ */
+ vdev->eps[ep_index].ep_state &= ~EP_GETTING_NO_STREAMS;
+ vdev->eps[ep_index].ep_state &= ~EP_HAS_STREAMS;
+ }
+ spin_unlock_irqrestore(&xhci->lock, flags);
+
+ return 0;
+}
+
/*
* This submits a Reset Device Command, which will set the device state to 0,
* set the device address to 0, and disable all the endpoints except the default
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ea389e9..dada2fb 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -26,8 +26,8 @@
#include <linux/usb.h>
#include <linux/timer.h>
#include <linux/kernel.h>
+#include <linux/usb/hcd.h>
-#include "../core/hcd.h"
/* Code sharing between pci-quirks and xhci hcd */
#include "xhci-ext-caps.h"
@@ -117,7 +117,7 @@
/* true: no secondary Stream ID Support */
#define HCC_NSS(p) ((p) & (1 << 7))
/* Max size for Primary Stream Arrays - 2^(n+1), where n is bits 12:15 */
-#define HCC_MAX_PSA (1 << ((((p) >> 12) & 0xf) + 1))
+#define HCC_MAX_PSA(p) (1 << ((((p) >> 12) & 0xf) + 1))
/* Extended Capabilities pointer from PCI base - section 5.3.6 */
#define HCC_EXT_CAPS(p) XHCI_HCC_EXT_CAPS(p)
@@ -444,6 +444,7 @@
/* Endpoint Target - bits 0:7 */
#define EPI_TO_DB(p) (((p) + 1) & 0xff)
+#define STREAM_ID_TO_DB(p) (((p) & 0xffff) << 16)
/**
@@ -585,6 +586,10 @@
/* Interval - period between requests to an endpoint - 125u increments. */
#define EP_INTERVAL(p) ((p & 0xff) << 16)
#define EP_INTERVAL_TO_UFRAMES(p) (1 << (((p) >> 16) & 0xff))
+#define EP_MAXPSTREAMS_MASK (0x1f << 10)
+#define EP_MAXPSTREAMS(p) (((p) << 10) & EP_MAXPSTREAMS_MASK)
+/* Endpoint is set up with a Linear Stream Array (vs. Secondary Stream Array) */
+#define EP_HAS_LSA (1 << 15)
/* ep_info2 bitmasks */
/*
@@ -648,8 +653,50 @@
/* add context bitmasks */
#define ADD_EP(x) (0x1 << x)
+struct xhci_stream_ctx {
+ /* 64-bit stream ring address, cycle state, and stream type */
+ u64 stream_ring;
+ /* offset 0x14 - 0x1f reserved for HC internal use */
+ u32 reserved[2];
+};
+
+/* Stream Context Types (section 6.4.1) - bits 3:1 of stream ctx deq ptr */
+#define SCT_FOR_CTX(p) (((p) << 1) & 0x7)
+/* Secondary stream array type, dequeue pointer is to a transfer ring */
+#define SCT_SEC_TR 0
+/* Primary stream array type, dequeue pointer is to a transfer ring */
+#define SCT_PRI_TR 1
+/* Dequeue pointer is for a secondary stream array (SSA) with 8 entries */
+#define SCT_SSA_8 2
+#define SCT_SSA_16 3
+#define SCT_SSA_32 4
+#define SCT_SSA_64 5
+#define SCT_SSA_128 6
+#define SCT_SSA_256 7
+
+/* Assume no secondary streams for now */
+struct xhci_stream_info {
+ struct xhci_ring **stream_rings;
+ /* Number of streams, including stream 0 (which drivers can't use) */
+ unsigned int num_streams;
+ /* The stream context array may be bigger than
+ * the number of streams the driver asked for
+ */
+ struct xhci_stream_ctx *stream_ctx_array;
+ unsigned int num_stream_ctxs;
+ dma_addr_t ctx_array_dma;
+ /* For mapping physical TRB addresses to segments in stream rings */
+ struct radix_tree_root trb_address_map;
+ struct xhci_command *free_streams_command;
+};
+
+#define SMALL_STREAM_ARRAY_SIZE 256
+#define MEDIUM_STREAM_ARRAY_SIZE 1024
+
struct xhci_virt_ep {
struct xhci_ring *ring;
+ /* Related to endpoints that are configured to use stream IDs only */
+ struct xhci_stream_info *stream_info;
/* Temporary storage in case the configure endpoint command fails and we
* have to restore the device state to the previous state
*/
@@ -658,11 +705,17 @@
#define SET_DEQ_PENDING (1 << 0)
#define EP_HALTED (1 << 1) /* For stall handling */
#define EP_HALT_PENDING (1 << 2) /* For URB cancellation */
+/* Transitioning the endpoint to using streams, don't enqueue URBs */
+#define EP_GETTING_STREAMS (1 << 3)
+#define EP_HAS_STREAMS (1 << 4)
+/* Transitioning the endpoint to not using streams, don't enqueue URBs */
+#define EP_GETTING_NO_STREAMS (1 << 5)
/* ---- Related to URB cancellation ---- */
struct list_head cancelled_td_list;
/* The TRB that was last reported in a stopped endpoint ring */
union xhci_trb *stopped_trb;
struct xhci_td *stopped_td;
+ unsigned int stopped_stream;
/* Watchdog timer for stop endpoint command to cancel URBs */
struct timer_list stop_cmd_timer;
int stop_cmds_pending;
@@ -710,14 +763,6 @@
*/
-struct xhci_stream_ctx {
- /* 64-bit stream ring address, cycle state, and stream type */
- u64 stream_ring;
- /* offset 0x14 - 0x1f reserved for HC internal use */
- u32 reserved[2];
-};
-
-
struct xhci_transfer_event {
/* 64-bit buffer address, or immediate data */
u64 buffer;
@@ -828,6 +873,10 @@
#define TRB_TO_EP_INDEX(p) ((((p) & (0x1f << 16)) >> 16) - 1)
#define EP_ID_FOR_TRB(p) ((((p) + 1) & 0x1f) << 16)
+/* Set TR Dequeue Pointer command TRB fields */
+#define TRB_TO_STREAM_ID(p) ((((p) & (0xffff << 16)) >> 16))
+#define STREAM_ID_FOR_TRB(p) ((((p)) & 0xffff) << 16)
+
/* Port Status Change Event TRB fields */
/* Port ID - bits 31:24 */
@@ -952,6 +1001,10 @@
/* Allow two commands + a link TRB, along with any reserved command TRBs */
#define MAX_RSVD_CMD_TRBS (TRBS_PER_SEGMENT - 3)
#define SEGMENT_SIZE (TRBS_PER_SEGMENT*16)
+/* SEGMENT_SHIFT should be log2(SEGMENT_SIZE).
+ * Change this if you change TRBS_PER_SEGMENT!
+ */
+#define SEGMENT_SHIFT 10
/* TRB buffer pointers can't cross 64KB boundaries */
#define TRB_MAX_BUFF_SHIFT 16
#define TRB_MAX_BUFF_SIZE (1 << TRB_MAX_BUFF_SHIFT)
@@ -993,6 +1046,7 @@
* if we own the TRB (if we are the consumer). See section 4.9.1.
*/
u32 cycle_state;
+ unsigned int stream_id;
};
struct xhci_erst_entry {
@@ -1088,6 +1142,8 @@
/* DMA pools */
struct dma_pool *device_pool;
struct dma_pool *segment_pool;
+ struct dma_pool *small_streams_pool;
+ struct dma_pool *medium_streams_pool;
#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING
/* Poll the rings - for debugging */
@@ -1216,6 +1272,9 @@
void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int last_ep);
char *xhci_get_slot_state(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx);
+void xhci_dbg_ep_rings(struct xhci_hcd *xhci,
+ unsigned int slot_id, unsigned int ep_index,
+ struct xhci_virt_ep *ep);
/* xHCI memory management */
void xhci_mem_cleanup(struct xhci_hcd *xhci);
@@ -1242,6 +1301,29 @@
void xhci_free_or_cache_endpoint_ring(struct xhci_hcd *xhci,
struct xhci_virt_device *virt_dev,
unsigned int ep_index);
+struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci,
+ unsigned int num_stream_ctxs,
+ unsigned int num_streams, gfp_t flags);
+void xhci_free_stream_info(struct xhci_hcd *xhci,
+ struct xhci_stream_info *stream_info);
+void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci,
+ struct xhci_ep_ctx *ep_ctx,
+ struct xhci_stream_info *stream_info);
+void xhci_setup_no_streams_ep_input_ctx(struct xhci_hcd *xhci,
+ struct xhci_ep_ctx *ep_ctx,
+ struct xhci_virt_ep *ep);
+struct xhci_ring *xhci_dma_to_transfer_ring(
+ struct xhci_virt_ep *ep,
+ u64 address);
+struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci,
+ struct urb *urb);
+struct xhci_ring *xhci_triad_to_transfer_ring(struct xhci_hcd *xhci,
+ unsigned int slot_id, unsigned int ep_index,
+ unsigned int stream_id);
+struct xhci_ring *xhci_stream_id_to_ring(
+ struct xhci_virt_device *dev,
+ unsigned int ep_index,
+ unsigned int stream_id);
struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci,
bool allocate_in_ctx, bool allocate_completion,
gfp_t mem_flags);
@@ -1266,6 +1348,12 @@
irqreturn_t xhci_irq(struct usb_hcd *hcd);
int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev);
void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev);
+int xhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ unsigned int num_streams, gfp_t mem_flags);
+int xhci_free_streams(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint **eps, unsigned int num_eps,
+ gfp_t mem_flags);
int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev);
int xhci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev,
struct usb_tt *tt, gfp_t mem_flags);
@@ -1308,9 +1396,11 @@
int xhci_queue_reset_device(struct xhci_hcd *xhci, u32 slot_id);
void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
- struct xhci_td *cur_td, struct xhci_dequeue_state *state);
+ unsigned int stream_id, struct xhci_td *cur_td,
+ struct xhci_dequeue_state *state);
void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
unsigned int slot_id, unsigned int ep_index,
+ unsigned int stream_id,
struct xhci_dequeue_state *deq_state);
void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci,
struct usb_device *udev, unsigned int ep_index);
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index 094f91c..1fa6ce3 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -259,7 +259,7 @@
}
/* Allocate buffer for interrupt data */
- pdata->urbdata = usb_buffer_alloc(pdata->udev, ACD_URB_BUFFER_LEN,
+ pdata->urbdata = usb_alloc_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
GFP_KERNEL, &pdata->urb->transfer_dma);
if (!pdata->urbdata) {
retval = -ENOMEM;
@@ -316,7 +316,7 @@
if (pdata->urb) {
usb_kill_urb(pdata->urb);
if (pdata->urbdata)
- usb_buffer_free(pdata->udev, ACD_URB_BUFFER_LEN,
+ usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
pdata->urbdata, pdata->urb->transfer_dma);
usb_free_urb(pdata->urb);
}
@@ -337,7 +337,7 @@
usb_kill_urb(pdata->urb);
cancel_delayed_work(&pdata->work);
backlight_device_unregister(pdata->bd);
- usb_buffer_free(pdata->udev, ACD_URB_BUFFER_LEN,
+ usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
pdata->urbdata, pdata->urb->transfer_dma);
usb_free_urb(pdata->urb);
kfree(pdata->msgdata);
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 1edb6d3..82e1663 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -73,7 +73,7 @@
*/
#include "usb_u132.h"
#include <asm/io.h>
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
* If you're going to try stuff like this, you need to split
@@ -734,7 +734,7 @@
dev_err(&ftdi->udev->dev, "urb=%p write bulk status received: %"
"d\n", urb, status);
}
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
urb->transfer_buffer, urb->transfer_dma);
}
@@ -795,7 +795,7 @@
total_size);
return -ENOMEM;
}
- buf = usb_buffer_alloc(ftdi->udev, total_size, GFP_KERNEL,
+ buf = usb_alloc_coherent(ftdi->udev, total_size, GFP_KERNEL,
&urb->transfer_dma);
if (!buf) {
dev_err(&ftdi->udev->dev, "could not get a buffer to write %d c"
@@ -829,7 +829,7 @@
dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write "
"%d commands totaling %d bytes to the Uxxx\n", retval,
urb, command_size, total_size);
- usb_buffer_free(ftdi->udev, total_size, buf, urb->transfer_dma);
+ usb_free_coherent(ftdi->udev, total_size, buf, urb->transfer_dma);
usb_free_urb(urb);
return retval;
}
@@ -1167,7 +1167,7 @@
retval = -ENOMEM;
goto error_1;
}
- buf = usb_buffer_alloc(ftdi->udev, count, GFP_KERNEL,
+ buf = usb_alloc_coherent(ftdi->udev, count, GFP_KERNEL,
&urb->transfer_dma);
if (!buf) {
retval = -ENOMEM;
@@ -1192,7 +1192,7 @@
exit:
return count;
error_3:
- usb_buffer_free(ftdi->udev, count, buf, urb->transfer_dma);
+ usb_free_coherent(ftdi->udev, count, buf, urb->transfer_dma);
error_2:
usb_free_urb(urb);
error_1:
@@ -1968,7 +1968,7 @@
"ence\n");
return -ENOMEM;
}
- buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
+ buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
if (!buf) {
dev_err(&ftdi->udev->dev, "could not get a buffer for flush seq"
"uence\n");
@@ -1985,7 +1985,7 @@
if (retval) {
dev_err(&ftdi->udev->dev, "failed to submit urb containing the "
"flush sequence\n");
- usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma);
+ usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma);
usb_free_urb(urb);
return -ENOMEM;
}
@@ -2011,7 +2011,7 @@
"quence\n");
return -ENOMEM;
}
- buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
+ buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
if (!buf) {
dev_err(&ftdi->udev->dev, "could not get a buffer for the reset"
" sequence\n");
@@ -2030,7 +2030,7 @@
if (retval) {
dev_err(&ftdi->udev->dev, "failed to submit urb containing the "
"reset sequence\n");
- usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma);
+ usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma);
usb_free_urb(urb);
return -ENOMEM;
}
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index d3c8523..7dc9d3c 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -239,8 +239,8 @@
__func__, status);
}
/* free up our allocated buffer */
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
/* tell a waiting writer the interrupt-out-pipe is available again */
atomic_dec(&dev->write_busy);
wake_up_interruptible(&dev->write_wait);
@@ -421,8 +421,8 @@
dbg("%s Unable to allocate urb ", __func__);
goto error_no_urb;
}
- buf = usb_buffer_alloc(dev->udev, dev->report_size,
- GFP_KERNEL, &int_out_urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, dev->report_size,
+ GFP_KERNEL, &int_out_urb->transfer_dma);
if (!buf) {
retval = -ENOMEM;
dbg("%s Unable to allocate buffer ", __func__);
@@ -459,8 +459,8 @@
break;
}
error:
- usb_buffer_free(dev->udev, dev->report_size, buf,
- int_out_urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->report_size, buf,
+ int_out_urb->transfer_dma);
error_no_buffer:
usb_free_urb(int_out_urb);
error_no_urb:
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index aae95a0..30d9303 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -47,7 +47,6 @@
#include <linux/spinlock.h>
#include <linux/kref.h>
#include <linux/usb.h>
-#include <linux/smp_lock.h>
#include <linux/vmalloc.h>
#include "sisusb.h"
@@ -2416,14 +2415,11 @@
struct usb_interface *interface;
int subminor = iminor(inode);
- lock_kernel();
if (!(interface = usb_find_interface(&sisusb_driver, subminor))) {
- unlock_kernel();
return -ENODEV;
}
if (!(sisusb = usb_get_intfdata(interface))) {
- unlock_kernel();
return -ENODEV;
}
@@ -2431,13 +2427,11 @@
if (!sisusb->present || !sisusb->ready) {
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return -ENODEV;
}
if (sisusb->isopen) {
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return -EBUSY;
}
@@ -2446,13 +2440,11 @@
if (sisusb_init_gfxdevice(sisusb, 0)) {
mutex_unlock(&sisusb->lock);
dev_err(&sisusb->sisusb_dev->dev, "Failed to initialize device\n");
- unlock_kernel();
return -EIO;
}
} else {
mutex_unlock(&sisusb->lock);
dev_err(&sisusb->sisusb_dev->dev, "Device not attached to USB 2.0 hub\n");
- unlock_kernel();
return -EIO;
}
}
@@ -2465,7 +2457,6 @@
file->private_data = sisusb;
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return 0;
}
@@ -2974,13 +2965,12 @@
struct sisusb_usb_data *sisusb;
struct sisusb_info x;
struct sisusb_command y;
- int retval = 0;
+ long retval = 0;
u32 __user *argp = (u32 __user *)arg;
if (!(sisusb = (struct sisusb_usb_data *)file->private_data))
return -ENODEV;
- lock_kernel();
mutex_lock(&sisusb->lock);
/* Sanity check */
@@ -3039,7 +3029,6 @@
err_out:
mutex_unlock(&sisusb->lock);
- unlock_kernel();
return retval;
}
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index b271b05..411e605 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -1187,9 +1187,9 @@
* And so is the hi_font_mask.
*/
for (i = 0; i < MAX_NR_CONSOLES; i++) {
- struct vc_data *c = vc_cons[i].d;
- if (c && c->vc_sw == &sisusb_con)
- c->vc_hi_font_mask = ch512 ? 0x0800 : 0;
+ struct vc_data *d = vc_cons[i].d;
+ if (d && d->vc_sw == &sisusb_con)
+ d->vc_hi_font_mask = ch512 ? 0x0800 : 0;
}
sisusb->current_font_512 = ch512;
@@ -1249,7 +1249,7 @@
mutex_unlock(&sisusb->lock);
if (dorecalc && c) {
- int i, rows = c->vc_scan_lines / fh;
+ int rows = c->vc_scan_lines / fh;
/* Now adjust our consoles' size */
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 90aede9..7828c76 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -205,8 +205,8 @@
}
/* free up our allocated buffer */
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
up(&dev->limit_sem);
}
@@ -234,7 +234,7 @@
goto err_no_buf;
}
- buf = usb_buffer_alloc(dev->udev, count, GFP_KERNEL, &urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, count, GFP_KERNEL, &urb->transfer_dma);
if (!buf) {
retval = -ENOMEM;
goto error;
@@ -268,7 +268,7 @@
error_unanchor:
usb_unanchor_urb(urb);
error:
- usb_buffer_free(dev->udev, count, buf, urb->transfer_dma);
+ usb_free_coherent(dev->udev, count, buf, urb->transfer_dma);
usb_free_urb(urb);
err_no_buf:
up(&dev->limit_sem);
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index a21cce6..16dffe9 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -202,7 +202,7 @@
urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
if (usb_pipein (pipe))
urb->transfer_flags |= URB_SHORT_NOT_OK;
- urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
+ urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
&urb->transfer_dma);
if (!urb->transfer_buffer) {
usb_free_urb (urb);
@@ -272,8 +272,8 @@
static void simple_free_urb (struct urb *urb)
{
- usb_buffer_free (urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
usb_free_urb (urb);
}
@@ -977,15 +977,13 @@
if (!u)
goto cleanup;
- reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL,
- &u->setup_dma);
+ reqp = kmalloc(sizeof *reqp, GFP_KERNEL);
if (!reqp)
goto cleanup;
reqp->setup = req;
reqp->number = i % NUM_SUBCASES;
reqp->expected = expected;
u->setup_packet = (char *) &reqp->setup;
- u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
u->context = &context;
u->complete = ctrl_complete;
@@ -1017,10 +1015,7 @@
if (!urb [i])
continue;
urb [i]->dev = udev;
- if (urb [i]->setup_packet)
- usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
- urb [i]->setup_packet,
- urb [i]->setup_dma);
+ kfree(urb[i]->setup_packet);
simple_free_urb (urb [i]);
}
kfree (urb);
@@ -1421,7 +1416,7 @@
urb->number_of_packets = packets;
urb->transfer_buffer_length = bytes;
- urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
+ urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
&urb->transfer_dma);
if (!urb->transfer_buffer) {
usb_free_urb (urb);
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index ddf7f9a..e7fa364 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -416,13 +416,13 @@
} else {
/* If IOMMU coalescing occurred, we cannot trust sg_page */
- if (urb->sg->nents != urb->num_sgs) {
+ if (urb->transfer_flags & URB_DMA_SG_COMBINED) {
*flag = 'D';
return length;
}
/* Copy up to the first non-addressable segment */
- for_each_sg(urb->sg->sg, sg, urb->num_sgs, i) {
+ for_each_sg(urb->sg, sg, urb->num_sgs, i) {
if (length == 0 || PageHighMem(sg_page(sg)))
break;
this_len = min_t(unsigned int, sg->length, length);
diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c
index e4af18b..812dc28 100644
--- a/drivers/usb/mon/mon_main.c
+++ b/drivers/usb/mon/mon_main.c
@@ -9,12 +9,13 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
+#include <linux/usb/hcd.h>
#include <linux/slab.h>
#include <linux/notifier.h>
#include <linux/mutex.h>
#include "usb_mon.h"
-#include "../core/hcd.h"
+
static void mon_stop(struct mon_bus *mbus);
static void mon_dissolve(struct mon_bus *mbus, struct usb_bus *ubus);
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index 4d0be13..a545d65 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -159,11 +159,9 @@
if (src == NULL)
return 'Z'; /* '0' would be not as pretty. */
} else {
- struct scatterlist *sg = urb->sg->sg;
+ struct scatterlist *sg = urb->sg;
- /* If IOMMU coalescing occurred, we cannot trust sg_page */
- if (urb->sg->nents != urb->num_sgs ||
- PageHighMem(sg_page(sg)))
+ if (PageHighMem(sg_page(sg)))
return 'D';
/* For the text interface we copy only the first sg buffer */
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 07fe490..cfd38ed 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -38,6 +38,7 @@
default y if ARCH_DAVINCI
default y if ARCH_OMAP2430
default y if ARCH_OMAP3
+ default y if ARCH_OMAP4
default y if (BF54x && !BF544)
default y if (BF52x && !BF522 && !BF523)
@@ -50,6 +51,9 @@
comment "OMAP 343x high speed USB support"
depends on USB_MUSB_HDRC && ARCH_OMAP3
+comment "OMAP 44xx high speed USB support"
+ depends on USB_MUSB_HDRC && ARCH_OMAP4
+
comment "Blackfin high speed USB Support"
depends on USB_MUSB_HDRC && ((BF54x && !BF544) || (BF52x && !BF522 && !BF523))
@@ -153,7 +157,7 @@
config USB_INVENTRA_DMA
bool
depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
- default ARCH_OMAP2430 || ARCH_OMAP3 || BLACKFIN
+ default ARCH_OMAP2430 || ARCH_OMAP3 || BLACKFIN || ARCH_OMAP4
help
Enable DMA transfers using Mentor's engine.
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index 3a485da..9705f71 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -22,6 +22,10 @@
musb_hdrc-objs += omap2430.o
endif
+ifeq ($(CONFIG_ARCH_OMAP4),y)
+ musb_hdrc-objs += omap2430.o
+endif
+
ifeq ($(CONFIG_BF54x),y)
musb_hdrc-objs += blackfin.o
endif
@@ -38,6 +42,10 @@
musb_hdrc-objs += musb_virthub.o musb_host.o
endif
+ifeq ($(CONFIG_DEBUG_FS),y)
+ musb_hdrc-objs += musb_debugfs.o
+endif
+
# the kconfig must guarantee that only one of the
# possible I/O schemes will be enabled at a time ...
# PIO only, or DMA (several potential schemes).
@@ -64,12 +72,6 @@
################################################################################
-# FIXME remove all these extra "-DMUSB_* things, stick to CONFIG_*
-
-ifeq ($(CONFIG_USB_INVENTRA_MUSB_HAS_AHB_ID),y)
- EXTRA_CFLAGS += -DMUSB_AHB_ID
-endif
-
# Debugging
ifeq ($(CONFIG_USB_MUSB_DEBUG),y)
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index ec8d324..b611420 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -170,6 +170,13 @@
retval = musb_interrupt(musb);
}
+ /* Start sampling ID pin, when plug is removed from MUSB */
+ if (is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
+ || musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
+ mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
+ musb->a_wait_bcon = TIMER_DELAY;
+ }
+
spin_unlock_irqrestore(&musb->lock, flags);
return retval;
@@ -180,6 +187,7 @@
struct musb *musb = (void *)_musb;
unsigned long flags;
u16 val;
+ static u8 toggle;
spin_lock_irqsave(&musb->lock, flags);
switch (musb->xceiv->state) {
@@ -187,10 +195,44 @@
case OTG_STATE_A_WAIT_BCON:
/* Start a new session */
val = musb_readw(musb->mregs, MUSB_DEVCTL);
+ val &= ~MUSB_DEVCTL_SESSION;
+ musb_writew(musb->mregs, MUSB_DEVCTL, val);
val |= MUSB_DEVCTL_SESSION;
musb_writew(musb->mregs, MUSB_DEVCTL, val);
-
+ /* Check if musb is host or peripheral. */
val = musb_readw(musb->mregs, MUSB_DEVCTL);
+
+ if (!(val & MUSB_DEVCTL_BDEVICE)) {
+ gpio_set_value(musb->config->gpio_vrsel, 1);
+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ } else {
+ gpio_set_value(musb->config->gpio_vrsel, 0);
+ /* Ignore VBUSERROR and SUSPEND IRQ */
+ val = musb_readb(musb->mregs, MUSB_INTRUSBE);
+ val &= ~MUSB_INTR_VBUSERROR;
+ musb_writeb(musb->mregs, MUSB_INTRUSBE, val);
+
+ val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
+ musb_writeb(musb->mregs, MUSB_INTRUSB, val);
+ if (is_otg_enabled(musb))
+ musb->xceiv->state = OTG_STATE_B_IDLE;
+ else
+ musb_writeb(musb->mregs, MUSB_POWER, MUSB_POWER_HSENAB);
+ }
+ mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
+ break;
+ case OTG_STATE_B_IDLE:
+
+ if (!is_peripheral_enabled(musb))
+ break;
+ /* Start a new session. It seems that MUSB needs taking
+ * some time to recognize the type of the plug inserted?
+ */
+ val = musb_readw(musb->mregs, MUSB_DEVCTL);
+ val |= MUSB_DEVCTL_SESSION;
+ musb_writew(musb->mregs, MUSB_DEVCTL, val);
+ val = musb_readw(musb->mregs, MUSB_DEVCTL);
+
if (!(val & MUSB_DEVCTL_BDEVICE)) {
gpio_set_value(musb->config->gpio_vrsel, 1);
musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
@@ -205,12 +247,27 @@
val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
musb_writeb(musb->mregs, MUSB_INTRUSB, val);
- val = MUSB_POWER_HSENAB;
- musb_writeb(musb->mregs, MUSB_POWER, val);
+ /* Toggle the Soft Conn bit, so that we can response to
+ * the inserting of either A-plug or B-plug.
+ */
+ if (toggle) {
+ val = musb_readb(musb->mregs, MUSB_POWER);
+ val &= ~MUSB_POWER_SOFTCONN;
+ musb_writeb(musb->mregs, MUSB_POWER, val);
+ toggle = 0;
+ } else {
+ val = musb_readb(musb->mregs, MUSB_POWER);
+ val |= MUSB_POWER_SOFTCONN;
+ musb_writeb(musb->mregs, MUSB_POWER, val);
+ toggle = 1;
+ }
+ /* The delay time is set to 1/4 second by default,
+ * shortening it, if accelerating A-plug detection
+ * is needed in OTG mode.
+ */
+ mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY / 4);
}
- mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
break;
-
default:
DBG(1, "%s state not handled\n", otg_state_string(musb));
break;
@@ -222,7 +279,7 @@
void musb_platform_enable(struct musb *musb)
{
- if (is_host_enabled(musb)) {
+ if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
musb->a_wait_bcon = TIMER_DELAY;
}
@@ -232,16 +289,12 @@
{
}
-static void bfin_vbus_power(struct musb *musb, int is_on, int sleeping)
-{
-}
-
static void bfin_set_vbus(struct musb *musb, int is_on)
{
- if (is_on)
- gpio_set_value(musb->config->gpio_vrsel, 1);
- else
- gpio_set_value(musb->config->gpio_vrsel, 0);
+ int value = musb->config->gpio_vrsel_active;
+ if (!is_on)
+ value = !value;
+ gpio_set_value(musb->config->gpio_vrsel, value);
DBG(1, "VBUS %s, devctl %02x "
/* otg %3x conf %08x prcm %08x */ "\n",
@@ -256,7 +309,7 @@
void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
{
- if (is_host_enabled(musb))
+ if (!is_otg_enabled(musb) && is_host_enabled(musb))
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
}
@@ -270,7 +323,7 @@
return -EIO;
}
-int __init musb_platform_init(struct musb *musb)
+int __init musb_platform_init(struct musb *musb, void *board_data)
{
/*
@@ -339,23 +392,10 @@
return 0;
}
-int musb_platform_suspend(struct musb *musb)
-{
- return 0;
-}
-
-int musb_platform_resume(struct musb *musb)
-{
- return 0;
-}
-
-
int musb_platform_exit(struct musb *musb)
{
- bfin_vbus_power(musb, 0 /*off*/, 1);
gpio_free(musb->config->gpio_vrsel);
- musb_platform_suspend(musb);
return 0;
}
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index ce2e16f..57624361 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -376,7 +376,7 @@
return -EIO;
}
-int __init musb_platform_init(struct musb *musb)
+int __init musb_platform_init(struct musb *musb, void *board_data)
{
void __iomem *tibase = musb->ctrl_base;
u32 revision;
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 705cc4a..fad70bc 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -149,6 +149,87 @@
/*-------------------------------------------------------------------------*/
+#ifndef CONFIG_BLACKFIN
+static int musb_ulpi_read(struct otg_transceiver *otg, u32 offset)
+{
+ void __iomem *addr = otg->io_priv;
+ int i = 0;
+ u8 r;
+ u8 power;
+
+ /* Make sure the transceiver is not in low power mode */
+ power = musb_readb(addr, MUSB_POWER);
+ power &= ~MUSB_POWER_SUSPENDM;
+ musb_writeb(addr, MUSB_POWER, power);
+
+ /* REVISIT: musbhdrc_ulpi_an.pdf recommends setting the
+ * ULPICarKitControlDisableUTMI after clearing POWER_SUSPENDM.
+ */
+
+ musb_writeb(addr, MUSB_ULPI_REG_ADDR, (u8)offset);
+ musb_writeb(addr, MUSB_ULPI_REG_CONTROL,
+ MUSB_ULPI_REG_REQ | MUSB_ULPI_RDN_WR);
+
+ while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL)
+ & MUSB_ULPI_REG_CMPLT)) {
+ i++;
+ if (i == 10000) {
+ DBG(3, "ULPI read timed out\n");
+ return -ETIMEDOUT;
+ }
+
+ }
+ r = musb_readb(addr, MUSB_ULPI_REG_CONTROL);
+ r &= ~MUSB_ULPI_REG_CMPLT;
+ musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r);
+
+ return musb_readb(addr, MUSB_ULPI_REG_DATA);
+}
+
+static int musb_ulpi_write(struct otg_transceiver *otg,
+ u32 offset, u32 data)
+{
+ void __iomem *addr = otg->io_priv;
+ int i = 0;
+ u8 r = 0;
+ u8 power;
+
+ /* Make sure the transceiver is not in low power mode */
+ power = musb_readb(addr, MUSB_POWER);
+ power &= ~MUSB_POWER_SUSPENDM;
+ musb_writeb(addr, MUSB_POWER, power);
+
+ musb_writeb(addr, MUSB_ULPI_REG_ADDR, (u8)offset);
+ musb_writeb(addr, MUSB_ULPI_REG_DATA, (u8)data);
+ musb_writeb(addr, MUSB_ULPI_REG_CONTROL, MUSB_ULPI_REG_REQ);
+
+ while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL)
+ & MUSB_ULPI_REG_CMPLT)) {
+ i++;
+ if (i == 10000) {
+ DBG(3, "ULPI write timed out\n");
+ return -ETIMEDOUT;
+ }
+ }
+
+ r = musb_readb(addr, MUSB_ULPI_REG_CONTROL);
+ r &= ~MUSB_ULPI_REG_CMPLT;
+ musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r);
+
+ return 0;
+}
+#else
+#define musb_ulpi_read(a, b) NULL
+#define musb_ulpi_write(a, b, c) NULL
+#endif
+
+static struct otg_io_access_ops musb_ulpi_access = {
+ .read = musb_ulpi_read,
+ .write = musb_ulpi_write,
+};
+
+/*-------------------------------------------------------------------------*/
+
#if !defined(CONFIG_USB_TUSB6010) && !defined(CONFIG_BLACKFIN)
/*
@@ -353,8 +434,7 @@
* which cause occasional OPT A "Did not receive reset after connect"
* errors.
*/
- musb->port1_status &=
- ~(1 << USB_PORT_FEAT_C_CONNECTION);
+ musb->port1_status &= ~(USB_PORT_STAT_C_CONNECTION << 16);
}
#endif
@@ -530,8 +610,8 @@
musb_writeb(mbase, MUSB_DEVCTL, devctl);
} else {
musb->port1_status |=
- (1 << USB_PORT_FEAT_OVER_CURRENT)
- | (1 << USB_PORT_FEAT_C_OVER_CURRENT);
+ USB_PORT_STAT_OVERCURRENT
+ | (USB_PORT_STAT_C_OVERCURRENT << 16);
}
break;
default:
@@ -986,7 +1066,8 @@
* more than selecting one of a bunch of predefined configurations.
*/
#if defined(CONFIG_USB_TUSB6010) || \
- defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
+ defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) \
+ || defined(CONFIG_ARCH_OMAP4)
static ushort __initdata fifo_mode = 4;
#else
static ushort __initdata fifo_mode = 2;
@@ -996,24 +1077,13 @@
module_param(fifo_mode, ushort, 0);
MODULE_PARM_DESC(fifo_mode, "initial endpoint configuration");
-
-enum fifo_style { FIFO_RXTX, FIFO_TX, FIFO_RX } __attribute__ ((packed));
-enum buf_mode { BUF_SINGLE, BUF_DOUBLE } __attribute__ ((packed));
-
-struct fifo_cfg {
- u8 hw_ep_num;
- enum fifo_style style;
- enum buf_mode mode;
- u16 maxpacket;
-};
-
/*
* tables defining fifo_mode values. define more if you like.
* for host side, make sure both halves of ep1 are set up.
*/
/* mode 0 - fits in 2KB */
-static struct fifo_cfg __initdata mode_0_cfg[] = {
+static struct musb_fifo_cfg __initdata mode_0_cfg[] = {
{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, },
{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, },
{ .hw_ep_num = 2, .style = FIFO_RXTX, .maxpacket = 512, },
@@ -1022,7 +1092,7 @@
};
/* mode 1 - fits in 4KB */
-static struct fifo_cfg __initdata mode_1_cfg[] = {
+static struct musb_fifo_cfg __initdata mode_1_cfg[] = {
{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, .mode = BUF_DOUBLE, },
{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, .mode = BUF_DOUBLE, },
{ .hw_ep_num = 2, .style = FIFO_RXTX, .maxpacket = 512, .mode = BUF_DOUBLE, },
@@ -1031,7 +1101,7 @@
};
/* mode 2 - fits in 4KB */
-static struct fifo_cfg __initdata mode_2_cfg[] = {
+static struct musb_fifo_cfg __initdata mode_2_cfg[] = {
{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, },
{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, },
{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, },
@@ -1041,7 +1111,7 @@
};
/* mode 3 - fits in 4KB */
-static struct fifo_cfg __initdata mode_3_cfg[] = {
+static struct musb_fifo_cfg __initdata mode_3_cfg[] = {
{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, .mode = BUF_DOUBLE, },
{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, .mode = BUF_DOUBLE, },
{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, },
@@ -1051,7 +1121,7 @@
};
/* mode 4 - fits in 16KB */
-static struct fifo_cfg __initdata mode_4_cfg[] = {
+static struct musb_fifo_cfg __initdata mode_4_cfg[] = {
{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, },
{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, },
{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, },
@@ -1082,7 +1152,7 @@
};
/* mode 5 - fits in 8KB */
-static struct fifo_cfg __initdata mode_5_cfg[] = {
+static struct musb_fifo_cfg __initdata mode_5_cfg[] = {
{ .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, },
{ .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, },
{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 512, },
@@ -1120,7 +1190,7 @@
*/
static int __init
fifo_setup(struct musb *musb, struct musb_hw_ep *hw_ep,
- const struct fifo_cfg *cfg, u16 offset)
+ const struct musb_fifo_cfg *cfg, u16 offset)
{
void __iomem *mbase = musb->mregs;
int size = 0;
@@ -1191,17 +1261,23 @@
return offset + (maxpacket << ((c_size & MUSB_FIFOSZ_DPB) ? 1 : 0));
}
-static struct fifo_cfg __initdata ep0_cfg = {
+static struct musb_fifo_cfg __initdata ep0_cfg = {
.style = FIFO_RXTX, .maxpacket = 64,
};
static int __init ep_config_from_table(struct musb *musb)
{
- const struct fifo_cfg *cfg;
+ const struct musb_fifo_cfg *cfg;
unsigned i, n;
int offset;
struct musb_hw_ep *hw_ep = musb->endpoints;
+ if (musb->config->fifo_cfg) {
+ cfg = musb->config->fifo_cfg;
+ n = musb->config->fifo_cfg_size;
+ goto done;
+ }
+
switch (fifo_mode) {
default:
fifo_mode = 0;
@@ -1236,6 +1312,7 @@
musb_driver_name, fifo_mode);
+done:
offset = fifo_setup(musb, hw_ep, &ep0_cfg, 0);
/* assert(offset > 0) */
@@ -1461,7 +1538,8 @@
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) || \
+ defined(CONFIG_ARCH_OMAP4)
static irqreturn_t generic_interrupt(int irq, void *__hci)
{
@@ -1948,7 +2026,7 @@
* isp1504, non-OTG, etc) mostly hooking up through ULPI.
*/
musb->isr = generic_interrupt;
- status = musb_platform_init(musb);
+ status = musb_platform_init(musb, plat->board_data);
if (status < 0)
goto fail2;
@@ -1957,6 +2035,11 @@
goto fail3;
}
+ if (!musb->xceiv->io_ops) {
+ musb->xceiv->io_priv = musb->mregs;
+ musb->xceiv->io_ops = &musb_ulpi_access;
+ }
+
#ifndef CONFIG_MUSB_PIO_ONLY
if (use_dma && dev->dma_mask) {
struct dma_controller *c;
@@ -2057,10 +2140,14 @@
if (status < 0)
goto fail3;
+ status = musb_init_debugfs(musb);
+ if (status < 0)
+ goto fail4;
+
#ifdef CONFIG_SYSFS
status = sysfs_create_group(&musb->controller->kobj, &musb_attr_group);
if (status)
- goto fail4;
+ goto fail5;
#endif
dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
@@ -2077,6 +2164,9 @@
return 0;
+fail5:
+ musb_exit_debugfs(musb);
+
fail4:
if (!is_otg_enabled(musb) && is_host_enabled(musb))
usb_remove_hcd(musb_to_hcd(musb));
@@ -2153,6 +2243,7 @@
* - Peripheral mode: peripheral is deactivated (or never-activated)
* - OTG mode: both roles are deactivated (or never-activated)
*/
+ musb_exit_debugfs(musb);
musb_shutdown(pdev);
#ifdef CONFIG_USB_MUSB_HDRC_HCD
if (musb->board_mode == MUSB_HOST)
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index ac17b00..b22d02d 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -69,7 +69,7 @@
#include "musb_regs.h"
#include "musb_gadget.h"
-#include "../core/hcd.h"
+#include <linux/usb/hcd.h>
#include "musb_host.h"
@@ -213,7 +213,8 @@
*/
#if defined(CONFIG_ARCH_DAVINCI) || defined(CONFIG_ARCH_OMAP2430) \
- || defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_BLACKFIN)
+ || defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_BLACKFIN) \
+ || defined(CONFIG_ARCH_OMAP4)
/* REVISIT indexed access seemed to
* misbehave (on DaVinci) for at least peripheral IN ...
*/
@@ -596,7 +597,8 @@
extern int musb_platform_set_mode(struct musb *musb, u8 musb_mode);
#if defined(CONFIG_USB_TUSB6010) || defined(CONFIG_BLACKFIN) || \
- defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
+ defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+ defined(CONFIG_ARCH_OMAP4)
extern void musb_platform_try_idle(struct musb *musb, unsigned long timeout);
#else
#define musb_platform_try_idle(x, y) do {} while (0)
@@ -608,7 +610,7 @@
#define musb_platform_get_vbus_status(x) 0
#endif
-extern int __init musb_platform_init(struct musb *musb);
+extern int __init musb_platform_init(struct musb *musb, void *board_data);
extern int musb_platform_exit(struct musb *musb);
#endif /* __MUSB_CORE_H__ */
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index 9fc1db4..d73afdb 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -59,4 +59,17 @@
extern const char *otg_state_string(struct musb *);
+#ifdef CONFIG_DEBUG_FS
+extern int musb_init_debugfs(struct musb *musb);
+extern void musb_exit_debugfs(struct musb *musb);
+#else
+static inline int musb_init_debugfs(struct musb *musb)
+{
+ return 0;
+}
+static inline void musb_exit_debugfs(struct musb *musb)
+{
+}
+#endif
+
#endif /* __MUSB_LINUX_DEBUG_H__ */
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
new file mode 100644
index 0000000..bba76af
--- /dev/null
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -0,0 +1,294 @@
+/*
+ * MUSB OTG driver debugfs support
+ *
+ * Copyright 2010 Nokia Corporation
+ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/kobject.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#ifdef CONFIG_ARM
+#include <mach/hardware.h>
+#include <mach/memory.h>
+#include <asm/mach-types.h>
+#endif
+
+#include <asm/uaccess.h>
+
+#include "musb_core.h"
+#include "musb_debug.h"
+
+#ifdef CONFIG_ARCH_DAVINCI
+#include "davinci.h"
+#endif
+
+struct musb_register_map {
+ char *name;
+ unsigned offset;
+ unsigned size;
+};
+
+static const struct musb_register_map musb_regmap[] = {
+ { "FAddr", 0x00, 8 },
+ { "Power", 0x01, 8 },
+ { "Frame", 0x0c, 16 },
+ { "Index", 0x0e, 8 },
+ { "Testmode", 0x0f, 8 },
+ { "TxMaxPp", 0x10, 16 },
+ { "TxCSRp", 0x12, 16 },
+ { "RxMaxPp", 0x14, 16 },
+ { "RxCSR", 0x16, 16 },
+ { "RxCount", 0x18, 16 },
+ { "ConfigData", 0x1f, 8 },
+ { "DevCtl", 0x60, 8 },
+ { "MISC", 0x61, 8 },
+ { "TxFIFOsz", 0x62, 8 },
+ { "RxFIFOsz", 0x63, 8 },
+ { "TxFIFOadd", 0x64, 16 },
+ { "RxFIFOadd", 0x66, 16 },
+ { "VControl", 0x68, 32 },
+ { "HWVers", 0x6C, 16 },
+ { "EPInfo", 0x78, 8 },
+ { "RAMInfo", 0x79, 8 },
+ { "LinkInfo", 0x7A, 8 },
+ { "VPLen", 0x7B, 8 },
+ { "HS_EOF1", 0x7C, 8 },
+ { "FS_EOF1", 0x7D, 8 },
+ { "LS_EOF1", 0x7E, 8 },
+ { "SOFT_RST", 0x7F, 8 },
+ { "DMA_CNTLch0", 0x204, 16 },
+ { "DMA_ADDRch0", 0x208, 16 },
+ { "DMA_COUNTch0", 0x20C, 16 },
+ { "DMA_CNTLch1", 0x214, 16 },
+ { "DMA_ADDRch1", 0x218, 16 },
+ { "DMA_COUNTch1", 0x21C, 16 },
+ { "DMA_CNTLch2", 0x224, 16 },
+ { "DMA_ADDRch2", 0x228, 16 },
+ { "DMA_COUNTch2", 0x22C, 16 },
+ { "DMA_CNTLch3", 0x234, 16 },
+ { "DMA_ADDRch3", 0x238, 16 },
+ { "DMA_COUNTch3", 0x23C, 16 },
+ { "DMA_CNTLch4", 0x244, 16 },
+ { "DMA_ADDRch4", 0x248, 16 },
+ { "DMA_COUNTch4", 0x24C, 16 },
+ { "DMA_CNTLch5", 0x254, 16 },
+ { "DMA_ADDRch5", 0x258, 16 },
+ { "DMA_COUNTch5", 0x25C, 16 },
+ { "DMA_CNTLch6", 0x264, 16 },
+ { "DMA_ADDRch6", 0x268, 16 },
+ { "DMA_COUNTch6", 0x26C, 16 },
+ { "DMA_CNTLch7", 0x274, 16 },
+ { "DMA_ADDRch7", 0x278, 16 },
+ { "DMA_COUNTch7", 0x27C, 16 },
+ { } /* Terminating Entry */
+};
+
+static struct dentry *musb_debugfs_root;
+
+static int musb_regdump_show(struct seq_file *s, void *unused)
+{
+ struct musb *musb = s->private;
+ unsigned i;
+
+ seq_printf(s, "MUSB (M)HDRC Register Dump\n");
+
+ for (i = 0; i < ARRAY_SIZE(musb_regmap); i++) {
+ switch (musb_regmap[i].size) {
+ case 8:
+ seq_printf(s, "%-12s: %02x\n", musb_regmap[i].name,
+ musb_readb(musb->mregs, musb_regmap[i].offset));
+ break;
+ case 16:
+ seq_printf(s, "%-12s: %04x\n", musb_regmap[i].name,
+ musb_readw(musb->mregs, musb_regmap[i].offset));
+ break;
+ case 32:
+ seq_printf(s, "%-12s: %08x\n", musb_regmap[i].name,
+ musb_readl(musb->mregs, musb_regmap[i].offset));
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int musb_regdump_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, musb_regdump_show, inode->i_private);
+}
+
+static int musb_test_mode_show(struct seq_file *s, void *unused)
+{
+ struct musb *musb = s->private;
+ unsigned test;
+
+ test = musb_readb(musb->mregs, MUSB_TESTMODE);
+
+ if (test & MUSB_TEST_FORCE_HOST)
+ seq_printf(s, "force host\n");
+
+ if (test & MUSB_TEST_FIFO_ACCESS)
+ seq_printf(s, "fifo access\n");
+
+ if (test & MUSB_TEST_FORCE_FS)
+ seq_printf(s, "force full-speed\n");
+
+ if (test & MUSB_TEST_FORCE_HS)
+ seq_printf(s, "force high-speed\n");
+
+ if (test & MUSB_TEST_PACKET)
+ seq_printf(s, "test packet\n");
+
+ if (test & MUSB_TEST_K)
+ seq_printf(s, "test K\n");
+
+ if (test & MUSB_TEST_J)
+ seq_printf(s, "test J\n");
+
+ if (test & MUSB_TEST_SE0_NAK)
+ seq_printf(s, "test SE0 NAK\n");
+
+ return 0;
+}
+
+static const struct file_operations musb_regdump_fops = {
+ .open = musb_regdump_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int musb_test_mode_open(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+
+ return single_open(file, musb_test_mode_show, inode->i_private);
+}
+
+static ssize_t musb_test_mode_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ struct musb *musb = file->private_data;
+ u8 test = 0;
+ char buf[18];
+
+ memset(buf, 0x00, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ if (!strncmp(buf, "force host", 9))
+ test = MUSB_TEST_FORCE_HOST;
+
+ if (!strncmp(buf, "fifo access", 11))
+ test = MUSB_TEST_FIFO_ACCESS;
+
+ if (!strncmp(buf, "force full-speed", 15))
+ test = MUSB_TEST_FORCE_FS;
+
+ if (!strncmp(buf, "force high-speed", 15))
+ test = MUSB_TEST_FORCE_HS;
+
+ if (!strncmp(buf, "test packet", 10)) {
+ test = MUSB_TEST_PACKET;
+ musb_load_testpacket(musb);
+ }
+
+ if (!strncmp(buf, "test K", 6))
+ test = MUSB_TEST_K;
+
+ if (!strncmp(buf, "test J", 6))
+ test = MUSB_TEST_J;
+
+ if (!strncmp(buf, "test SE0 NAK", 12))
+ test = MUSB_TEST_SE0_NAK;
+
+ musb_writeb(musb->mregs, MUSB_TESTMODE, test);
+
+ return count;
+}
+
+static const struct file_operations musb_test_mode_fops = {
+ .open = musb_test_mode_open,
+ .write = musb_test_mode_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+int __init musb_init_debugfs(struct musb *musb)
+{
+ struct dentry *root;
+ struct dentry *file;
+ int ret;
+
+ root = debugfs_create_dir("musb", NULL);
+ if (IS_ERR(root)) {
+ ret = PTR_ERR(root);
+ goto err0;
+ }
+
+ file = debugfs_create_file("regdump", S_IRUGO, root, musb,
+ &musb_regdump_fops);
+ if (IS_ERR(file)) {
+ ret = PTR_ERR(file);
+ goto err1;
+ }
+
+ file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR,
+ root, musb, &musb_test_mode_fops);
+ if (IS_ERR(file)) {
+ ret = PTR_ERR(file);
+ goto err1;
+ }
+
+ musb_debugfs_root = root;
+
+ return 0;
+
+err1:
+ debugfs_remove_recursive(root);
+
+err0:
+ return ret;
+}
+
+void /* __init_or_exit */ musb_exit_debugfs(struct musb *musb)
+{
+ debugfs_remove_recursive(musb_debugfs_root);
+}
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 53d0645..21b9788 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -351,6 +351,31 @@
musb->test_mode_nr =
MUSB_TEST_PACKET;
break;
+
+ case 0xc0:
+ /* TEST_FORCE_HS */
+ pr_debug("TEST_FORCE_HS\n");
+ musb->test_mode_nr =
+ MUSB_TEST_FORCE_HS;
+ break;
+ case 0xc1:
+ /* TEST_FORCE_FS */
+ pr_debug("TEST_FORCE_FS\n");
+ musb->test_mode_nr =
+ MUSB_TEST_FORCE_FS;
+ break;
+ case 0xc2:
+ /* TEST_FIFO_ACCESS */
+ pr_debug("TEST_FIFO_ACCESS\n");
+ musb->test_mode_nr =
+ MUSB_TEST_FIFO_ACCESS;
+ break;
+ case 0xc3:
+ /* TEST_FORCE_HOST */
+ pr_debug("TEST_FORCE_HOST\n");
+ musb->test_mode_nr =
+ MUSB_TEST_FORCE_HOST;
+ break;
default:
goto stall;
}
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index fa55aac..2442675 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -75,6 +75,10 @@
/* MUSB ULPI VBUSCONTROL */
#define MUSB_ULPI_USE_EXTVBUS 0x01
#define MUSB_ULPI_USE_EXTVBUSIND 0x02
+/* ULPI_REG_CONTROL */
+#define MUSB_ULPI_REG_REQ (1 << 0)
+#define MUSB_ULPI_REG_CMPLT (1 << 1)
+#define MUSB_ULPI_RDN_WR (1 << 2)
/* TESTMODE */
#define MUSB_TEST_FORCE_HOST 0x80
@@ -251,6 +255,12 @@
/* REVISIT: vctrl/vstatus: optional vendor utmi+phy register at 0x68 */
#define MUSB_HWVERS 0x6C /* 8 bit */
#define MUSB_ULPI_BUSCONTROL 0x70 /* 8 bit */
+#define MUSB_ULPI_INT_MASK 0x72 /* 8 bit */
+#define MUSB_ULPI_INT_SRC 0x73 /* 8 bit */
+#define MUSB_ULPI_REG_DATA 0x74 /* 8 bit */
+#define MUSB_ULPI_REG_ADDR 0x75 /* 8 bit */
+#define MUSB_ULPI_REG_CONTROL 0x76 /* 8 bit */
+#define MUSB_ULPI_RAW_DATA 0x77 /* 8 bit */
#define MUSB_EPINFO 0x78 /* 8 bit */
#define MUSB_RAMINFO 0x79 /* 8 bit */
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 7775e1c0..92e85e0 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -183,8 +183,8 @@
void musb_root_disconnect(struct musb *musb)
{
- musb->port1_status = (1 << USB_PORT_FEAT_POWER)
- | (1 << USB_PORT_FEAT_C_CONNECTION);
+ musb->port1_status = USB_PORT_STAT_POWER
+ | (USB_PORT_STAT_C_CONNECTION << 16);
usb_hcd_poll_rh_status(musb_to_hcd(musb));
musb->is_active = 0;
diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h
index 613f95a..f763d62 100644
--- a/drivers/usb/musb/musbhsdma.h
+++ b/drivers/usb/musb/musbhsdma.h
@@ -102,26 +102,16 @@
static inline u32 musb_read_hsdma_count(void __iomem *mbase, u8 bchannel)
{
- u32 count = musb_readw(mbase,
+ return musb_readl(mbase,
MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_HIGH));
-
- count = count << 16;
-
- count |= musb_readw(mbase,
- MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_LOW));
-
- return count;
}
static inline void musb_write_hsdma_count(void __iomem *mbase,
u8 bchannel, u32 len)
{
- musb_writew(mbase,
- MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_LOW),
- ((u16)((u32) len & 0xFFFF)));
- musb_writew(mbase,
+ musb_writel(mbase,
MUSB_HSDMA_CHANNEL_OFFSET(bchannel, MUSB_HSDMA_COUNT_HIGH),
- ((u16)(((u32) len >> 16) & 0xFFFF)));
+ len);
}
#endif /* CONFIG_BLACKFIN */
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 8259263..e06d65e 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -32,17 +32,11 @@
#include <linux/clk.h>
#include <linux/io.h>
-#include <asm/mach-types.h>
-#include <mach/hardware.h>
#include <plat/mux.h>
#include "musb_core.h"
#include "omap2430.h"
-#ifdef CONFIG_ARCH_OMAP3430
-#define get_cpu_rev() 2
-#endif
-
static struct timer_list musb_idle_timer;
@@ -145,10 +139,6 @@
void musb_platform_disable(struct musb *musb)
{
}
-static void omap_vbus_power(struct musb *musb, int is_on, int sleeping)
-{
-}
-
static void omap_set_vbus(struct musb *musb, int is_on)
{
u8 devctl;
@@ -199,9 +189,10 @@
return 0;
}
-int __init musb_platform_init(struct musb *musb)
+int __init musb_platform_init(struct musb *musb, void *board_data)
{
u32 l;
+ struct omap_musb_board_data *data = board_data;
#if defined(CONFIG_ARCH_OMAP2430)
omap_cfg_reg(AE5_2430_USB0HS_STP);
@@ -235,7 +226,15 @@
musb_writel(musb->mregs, OTG_SYSCONFIG, l);
l = musb_readl(musb->mregs, OTG_INTERFSEL);
- l |= ULPI_12PIN;
+
+ if (data->interface_type == MUSB_INTERFACE_UTMI) {
+ /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */
+ l &= ~ULPI_12PIN; /* Disable ULPI */
+ l |= UTMI_8BIT; /* Enable UTMI */
+ } else {
+ l |= ULPI_12PIN;
+ }
+
musb_writel(musb->mregs, OTG_INTERFSEL, l);
pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
@@ -246,8 +245,6 @@
musb_readl(musb->mregs, OTG_INTERFSEL),
musb_readl(musb->mregs, OTG_SIMENABLE));
- omap_vbus_power(musb, musb->board_mode == MUSB_HOST, 1);
-
if (is_host_enabled(musb))
musb->board_set_vbus = omap_set_vbus;
@@ -272,7 +269,7 @@
}
#endif
-int musb_platform_suspend(struct musb *musb)
+static int musb_platform_suspend(struct musb *musb)
{
u32 l;
@@ -327,8 +324,6 @@
int musb_platform_exit(struct musb *musb)
{
- omap_vbus_power(musb, 0 /*off*/, 1);
-
musb_platform_suspend(musb);
return 0;
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 60d3938..05c077f 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1104,7 +1104,7 @@
return -ENODEV;
}
-int __init musb_platform_init(struct musb *musb)
+int __init musb_platform_init(struct musb *musb, void *board_data)
{
struct platform_device *pdev;
struct resource *mem;
diff --git a/drivers/usb/otg/isp1301_omap.c b/drivers/usb/otg/isp1301_omap.c
index 78a2097..4569694 100644
--- a/drivers/usb/otg/isp1301_omap.c
+++ b/drivers/usb/otg/isp1301_omap.c
@@ -1654,7 +1654,7 @@
{
return i2c_add_driver(&isp1301_driver);
}
-module_init(isp_init);
+subsys_initcall(isp_init);
static void __exit isp_exit(void)
{
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 223cdf4..0e88885 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -33,6 +33,7 @@
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
#include <linux/i2c/twl.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
@@ -41,81 +42,7 @@
/* Register defines */
-#define VENDOR_ID_LO 0x00
-#define VENDOR_ID_HI 0x01
-#define PRODUCT_ID_LO 0x02
-#define PRODUCT_ID_HI 0x03
-
-#define FUNC_CTRL 0x04
-#define FUNC_CTRL_SET 0x05
-#define FUNC_CTRL_CLR 0x06
-#define FUNC_CTRL_SUSPENDM (1 << 6)
-#define FUNC_CTRL_RESET (1 << 5)
-#define FUNC_CTRL_OPMODE_MASK (3 << 3) /* bits 3 and 4 */
-#define FUNC_CTRL_OPMODE_NORMAL (0 << 3)
-#define FUNC_CTRL_OPMODE_NONDRIVING (1 << 3)
-#define FUNC_CTRL_OPMODE_DISABLE_BIT_NRZI (2 << 3)
-#define FUNC_CTRL_TERMSELECT (1 << 2)
-#define FUNC_CTRL_XCVRSELECT_MASK (3 << 0) /* bits 0 and 1 */
-#define FUNC_CTRL_XCVRSELECT_HS (0 << 0)
-#define FUNC_CTRL_XCVRSELECT_FS (1 << 0)
-#define FUNC_CTRL_XCVRSELECT_LS (2 << 0)
-#define FUNC_CTRL_XCVRSELECT_FS4LS (3 << 0)
-
-#define IFC_CTRL 0x07
-#define IFC_CTRL_SET 0x08
-#define IFC_CTRL_CLR 0x09
-#define IFC_CTRL_INTERFACE_PROTECT_DISABLE (1 << 7)
-#define IFC_CTRL_AUTORESUME (1 << 4)
-#define IFC_CTRL_CLOCKSUSPENDM (1 << 3)
-#define IFC_CTRL_CARKITMODE (1 << 2)
-#define IFC_CTRL_FSLSSERIALMODE_3PIN (1 << 1)
-
-#define TWL4030_OTG_CTRL 0x0A
-#define TWL4030_OTG_CTRL_SET 0x0B
-#define TWL4030_OTG_CTRL_CLR 0x0C
-#define TWL4030_OTG_CTRL_DRVVBUS (1 << 5)
-#define TWL4030_OTG_CTRL_CHRGVBUS (1 << 4)
-#define TWL4030_OTG_CTRL_DISCHRGVBUS (1 << 3)
-#define TWL4030_OTG_CTRL_DMPULLDOWN (1 << 2)
-#define TWL4030_OTG_CTRL_DPPULLDOWN (1 << 1)
-#define TWL4030_OTG_CTRL_IDPULLUP (1 << 0)
-
-#define USB_INT_EN_RISE 0x0D
-#define USB_INT_EN_RISE_SET 0x0E
-#define USB_INT_EN_RISE_CLR 0x0F
-#define USB_INT_EN_FALL 0x10
-#define USB_INT_EN_FALL_SET 0x11
-#define USB_INT_EN_FALL_CLR 0x12
-#define USB_INT_STS 0x13
-#define USB_INT_LATCH 0x14
-#define USB_INT_IDGND (1 << 4)
-#define USB_INT_SESSEND (1 << 3)
-#define USB_INT_SESSVALID (1 << 2)
-#define USB_INT_VBUSVALID (1 << 1)
-#define USB_INT_HOSTDISCONNECT (1 << 0)
-
-#define CARKIT_CTRL 0x19
-#define CARKIT_CTRL_SET 0x1A
-#define CARKIT_CTRL_CLR 0x1B
-#define CARKIT_CTRL_MICEN (1 << 6)
-#define CARKIT_CTRL_SPKRIGHTEN (1 << 5)
-#define CARKIT_CTRL_SPKLEFTEN (1 << 4)
-#define CARKIT_CTRL_RXDEN (1 << 3)
-#define CARKIT_CTRL_TXDEN (1 << 2)
-#define CARKIT_CTRL_IDGNDDRV (1 << 1)
-#define CARKIT_CTRL_CARKITPWR (1 << 0)
-#define CARKIT_PLS_CTRL 0x22
-#define CARKIT_PLS_CTRL_SET 0x23
-#define CARKIT_PLS_CTRL_CLR 0x24
-#define CARKIT_PLS_CTRL_SPKRRIGHT_BIASEN (1 << 3)
-#define CARKIT_PLS_CTRL_SPKRLEFT_BIASEN (1 << 2)
-#define CARKIT_PLS_CTRL_RXPLSEN (1 << 1)
-#define CARKIT_PLS_CTRL_TXPLSEN (1 << 0)
-
#define MCPC_CTRL 0x30
-#define MCPC_CTRL_SET 0x31
-#define MCPC_CTRL_CLR 0x32
#define MCPC_CTRL_RTSOL (1 << 7)
#define MCPC_CTRL_EXTSWR (1 << 6)
#define MCPC_CTRL_EXTSWC (1 << 5)
@@ -125,8 +52,6 @@
#define MCPC_CTRL_HS_UART (1 << 0)
#define MCPC_IO_CTRL 0x33
-#define MCPC_IO_CTRL_SET 0x34
-#define MCPC_IO_CTRL_CLR 0x35
#define MCPC_IO_CTRL_MICBIASEN (1 << 5)
#define MCPC_IO_CTRL_CTS_NPU (1 << 4)
#define MCPC_IO_CTRL_RXD_PU (1 << 3)
@@ -135,19 +60,13 @@
#define MCPC_IO_CTRL_RTSTYP (1 << 0)
#define MCPC_CTRL2 0x36
-#define MCPC_CTRL2_SET 0x37
-#define MCPC_CTRL2_CLR 0x38
#define MCPC_CTRL2_MCPC_CK_EN (1 << 0)
#define OTHER_FUNC_CTRL 0x80
-#define OTHER_FUNC_CTRL_SET 0x81
-#define OTHER_FUNC_CTRL_CLR 0x82
#define OTHER_FUNC_CTRL_BDIS_ACON_EN (1 << 4)
#define OTHER_FUNC_CTRL_FIVEWIRE_MODE (1 << 2)
#define OTHER_IFC_CTRL 0x83
-#define OTHER_IFC_CTRL_SET 0x84
-#define OTHER_IFC_CTRL_CLR 0x85
#define OTHER_IFC_CTRL_OE_INT_EN (1 << 6)
#define OTHER_IFC_CTRL_CEA2011_MODE (1 << 5)
#define OTHER_IFC_CTRL_FSLSSERIALMODE_4PIN (1 << 4)
@@ -156,11 +75,7 @@
#define OTHER_IFC_CTRL_ALT_INT_REROUTE (1 << 0)
#define OTHER_INT_EN_RISE 0x86
-#define OTHER_INT_EN_RISE_SET 0x87
-#define OTHER_INT_EN_RISE_CLR 0x88
#define OTHER_INT_EN_FALL 0x89
-#define OTHER_INT_EN_FALL_SET 0x8A
-#define OTHER_INT_EN_FALL_CLR 0x8B
#define OTHER_INT_STS 0x8C
#define OTHER_INT_LATCH 0x8D
#define OTHER_INT_VB_SESS_VLD (1 << 7)
@@ -178,13 +93,9 @@
#define ID_RES_GND (1 << 0)
#define POWER_CTRL 0xAC
-#define POWER_CTRL_SET 0xAD
-#define POWER_CTRL_CLR 0xAE
#define POWER_CTRL_OTG_ENAB (1 << 5)
#define OTHER_IFC_CTRL2 0xAF
-#define OTHER_IFC_CTRL2_SET 0xB0
-#define OTHER_IFC_CTRL2_CLR 0xB1
#define OTHER_IFC_CTRL2_ULPI_STP_LOW (1 << 4)
#define OTHER_IFC_CTRL2_ULPI_TXEN_POL (1 << 3)
#define OTHER_IFC_CTRL2_ULPI_4PIN_2430 (1 << 2)
@@ -193,14 +104,10 @@
#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_INT2N (1 << 0)
#define REG_CTRL_EN 0xB2
-#define REG_CTRL_EN_SET 0xB3
-#define REG_CTRL_EN_CLR 0xB4
#define REG_CTRL_ERROR 0xB5
#define ULPI_I2C_CONFLICT_INTEN (1 << 0)
#define OTHER_FUNC_CTRL2 0xB8
-#define OTHER_FUNC_CTRL2_SET 0xB9
-#define OTHER_FUNC_CTRL2_CLR 0xBA
#define OTHER_FUNC_CTRL2_VBAT_TIMER_EN (1 << 0)
/* following registers do not have separate _clr and _set registers */
@@ -328,13 +235,13 @@
static inline int
twl4030_usb_set_bits(struct twl4030_usb *twl, u8 reg, u8 bits)
{
- return twl4030_usb_write(twl, reg + 1, bits);
+ return twl4030_usb_write(twl, ULPI_SET(reg), bits);
}
static inline int
twl4030_usb_clear_bits(struct twl4030_usb *twl, u8 reg, u8 bits)
{
- return twl4030_usb_write(twl, reg + 2, bits);
+ return twl4030_usb_write(twl, ULPI_CLR(reg), bits);
}
/*-------------------------------------------------------------------------*/
@@ -393,11 +300,12 @@
switch (mode) {
case T2_USB_MODE_ULPI:
- twl4030_usb_clear_bits(twl, IFC_CTRL, IFC_CTRL_CARKITMODE);
+ twl4030_usb_clear_bits(twl, ULPI_IFC_CTRL,
+ ULPI_IFC_CTRL_CARKITMODE);
twl4030_usb_set_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
- twl4030_usb_clear_bits(twl, FUNC_CTRL,
- FUNC_CTRL_XCVRSELECT_MASK |
- FUNC_CTRL_OPMODE_MASK);
+ twl4030_usb_clear_bits(twl, ULPI_FUNC_CTRL,
+ ULPI_FUNC_CTRL_XCVRSEL_MASK |
+ ULPI_FUNC_CTRL_OPMODE_MASK);
break;
case -1:
/* FIXME: power on defaults */
diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c
index 9010225..b1b3469 100644
--- a/drivers/usb/otg/ulpi.c
+++ b/drivers/usb/otg/ulpi.c
@@ -29,28 +29,6 @@
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
-/* ULPI register addresses */
-#define ULPI_VID_LOW 0x00 /* Vendor ID low */
-#define ULPI_VID_HIGH 0x01 /* Vendor ID high */
-#define ULPI_PID_LOW 0x02 /* Product ID low */
-#define ULPI_PID_HIGH 0x03 /* Product ID high */
-#define ULPI_ITFCTL 0x07 /* Interface Control */
-#define ULPI_OTGCTL 0x0A /* OTG Control */
-
-/* add to above register address to access Set/Clear functions */
-#define ULPI_REG_SET 0x01
-#define ULPI_REG_CLEAR 0x02
-
-/* ULPI OTG Control Register bits */
-#define ID_PULL_UP (1 << 0) /* enable ID Pull Up */
-#define DP_PULL_DOWN (1 << 1) /* enable DP Pull Down */
-#define DM_PULL_DOWN (1 << 2) /* enable DM Pull Down */
-#define DISCHRG_VBUS (1 << 3) /* Discharge Vbus */
-#define CHRG_VBUS (1 << 4) /* Charge Vbus */
-#define DRV_VBUS (1 << 5) /* Drive Vbus */
-#define DRV_VBUS_EXT (1 << 6) /* Drive Vbus external */
-#define USE_EXT_VBUS_IND (1 << 7) /* Use ext. Vbus indicator */
-
#define ULPI_ID(vendor, product) (((vendor) << 16) | (product))
#define TR_FLAG(flags, a, b) (((flags) & a) ? b : 0)
@@ -65,28 +43,28 @@
unsigned int flags = 0;
if (otg->flags & USB_OTG_PULLUP_ID)
- flags |= ID_PULL_UP;
+ flags |= ULPI_OTG_CTRL_ID_PULLUP;
if (otg->flags & USB_OTG_PULLDOWN_DM)
- flags |= DM_PULL_DOWN;
+ flags |= ULPI_OTG_CTRL_DM_PULLDOWN;
if (otg->flags & USB_OTG_PULLDOWN_DP)
- flags |= DP_PULL_DOWN;
+ flags |= ULPI_OTG_CTRL_DP_PULLDOWN;
if (otg->flags & USB_OTG_EXT_VBUS_INDICATOR)
- flags |= USE_EXT_VBUS_IND;
+ flags |= ULPI_OTG_CTRL_EXTVBUSIND;
- return otg_io_write(otg, flags, ULPI_OTGCTL + ULPI_REG_SET);
+ return otg_io_write(otg, flags, ULPI_SET(ULPI_OTG_CTRL));
}
static int ulpi_init(struct otg_transceiver *otg)
{
int i, vid, pid;
- vid = (otg_io_read(otg, ULPI_VID_HIGH) << 8) |
- otg_io_read(otg, ULPI_VID_LOW);
- pid = (otg_io_read(otg, ULPI_PID_HIGH) << 8) |
- otg_io_read(otg, ULPI_PID_LOW);
+ vid = (otg_io_read(otg, ULPI_VENDOR_ID_HIGH) << 8) |
+ otg_io_read(otg, ULPI_VENDOR_ID_LOW);
+ pid = (otg_io_read(otg, ULPI_PRODUCT_ID_HIGH) << 8) |
+ otg_io_read(otg, ULPI_PRODUCT_ID_LOW);
pr_info("ULPI transceiver vendor/product ID 0x%04x/0x%04x\n", vid, pid);
@@ -100,19 +78,19 @@
static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
{
- unsigned int flags = otg_io_read(otg, ULPI_OTGCTL);
+ unsigned int flags = otg_io_read(otg, ULPI_OTG_CTRL);
- flags &= ~(DRV_VBUS | DRV_VBUS_EXT);
+ flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT);
if (on) {
if (otg->flags & USB_OTG_DRV_VBUS)
- flags |= DRV_VBUS;
+ flags |= ULPI_OTG_CTRL_DRVVBUS;
if (otg->flags & USB_OTG_DRV_VBUS_EXT)
- flags |= DRV_VBUS_EXT;
+ flags |= ULPI_OTG_CTRL_DRVVBUS_EXT;
}
- return otg_io_write(otg, flags, ULPI_OTGCTL + ULPI_REG_SET);
+ return otg_io_write(otg, flags, ULPI_SET(ULPI_OTG_CTRL));
}
struct otg_transceiver *
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index a0ecb42..bd8aab0 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -425,6 +425,16 @@
To compile this driver as a module, choose M here: the
module will be called mos7720.
+config USB_SERIAL_MOS7715_PARPORT
+ bool "Support for parallel port on the Moschip 7715"
+ depends on USB_SERIAL_MOS7720
+ depends on PARPORT=y || PARPORT=USB_SERIAL_MOS7720
+ select PARPORT_NOT_PC
+ ---help---
+ Say Y if you have a Moschip 7715 device and would like to use
+ the parallel port it provides. The port will register with
+ the parport subsystem as a low-level driver.
+
config USB_SERIAL_MOS7840
tristate "USB Moschip 7840/7820 USB Serial Driver"
---help---
@@ -485,6 +495,7 @@
config USB_SERIAL_QUALCOMM
tristate "USB Qualcomm Serial modem"
+ select USB_SERIAL_WWAN
help
Say Y here if you have a Qualcomm USB modem device. These are
usually wireless cellular modems.
@@ -576,8 +587,12 @@
To compile this driver as a module, choose M here: the
module will be called keyspan_pda.
+config USB_SERIAL_WWAN
+ tristate
+
config USB_SERIAL_OPTION
tristate "USB driver for GSM and CDMA modems"
+ select USB_SERIAL_WWAN
help
Say Y here if you have a GSM or CDMA modem that's connected to USB.
@@ -619,6 +634,14 @@
To compile this driver as a module, choose M here: the
module will be called vivopay-serial.
+config USB_SERIAL_ZIO
+ tristate "ZIO Motherboard USB serial interface driver"
+ help
+ Say Y here if you want to use ZIO Motherboard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called zio.
+
config USB_SERIAL_DEBUG
tristate "USB Debugging Device"
help
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 83c9e43..e54c728 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -52,9 +52,11 @@
obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS) += sierra.o
obj-$(CONFIG_USB_SERIAL_SPCP8X5) += spcp8x5.o
obj-$(CONFIG_USB_SERIAL_SYMBOL) += symbolserial.o
+obj-$(CONFIG_USB_SERIAL_WWAN) += usb_wwan.o
obj-$(CONFIG_USB_SERIAL_TI) += ti_usb_3410_5052.o
obj-$(CONFIG_USB_SERIAL_VISOR) += visor.o
obj-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat.o
obj-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda.o
obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL) += vivopay-serial.o
+obj-$(CONFIG_USB_SERIAL_ZIO) += zio.o
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 4fd7af9..0db6ace 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -1,7 +1,9 @@
/*
* AIRcable USB Bluetooth Dongle Driver.
*
+ * Copyright (C) 2010 Johan Hovold <jhovold@gmail.com>
* Copyright (C) 2006 Manuel Francisco Naranjo (naranjo.manuel@gmail.com)
+ *
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation.
@@ -42,10 +44,10 @@
*
*/
+#include <asm/unaligned.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/tty_flip.h>
-#include <linux/circ_buf.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
@@ -55,16 +57,12 @@
#define AIRCABLE_VID 0x16CA
#define AIRCABLE_USB_PID 0x1502
-/* write buffer size defines */
-#define AIRCABLE_BUF_SIZE 2048
-
/* Protocol Stuff */
#define HCI_HEADER_LENGTH 0x4
#define TX_HEADER_0 0x20
#define TX_HEADER_1 0x29
#define RX_HEADER_0 0x00
#define RX_HEADER_1 0x20
-#define MAX_HCI_FRAMESIZE 60
#define HCI_COMPLETE_FRAME 64
/* rx_flags */
@@ -74,8 +72,8 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v1.0b2"
-#define DRIVER_AUTHOR "Naranjo, Manuel Francisco <naranjo.manuel@gmail.com>"
+#define DRIVER_VERSION "v2.0"
+#define DRIVER_AUTHOR "Naranjo, Manuel Francisco <naranjo.manuel@gmail.com>, Johan Hovold <jhovold@gmail.com>"
#define DRIVER_DESC "AIRcable USB Driver"
/* ID table that will be registered with USB core */
@@ -85,226 +83,21 @@
};
MODULE_DEVICE_TABLE(usb, id_table);
-
-/* Internal Structure */
-struct aircable_private {
- spinlock_t rx_lock; /* spinlock for the receive lines */
- struct circ_buf *tx_buf; /* write buffer */
- struct circ_buf *rx_buf; /* read buffer */
- int rx_flags; /* for throttilng */
- struct work_struct rx_work; /* work cue for the receiving line */
- struct usb_serial_port *port; /* USB port with which associated */
-};
-
-/* Private methods */
-
-/* Circular Buffer Methods, code from ti_usb_3410_5052 used */
-/*
- * serial_buf_clear
- *
- * Clear out all data in the circular buffer.
- */
-static void serial_buf_clear(struct circ_buf *cb)
+static int aircable_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size)
{
- cb->head = cb->tail = 0;
-}
+ int count;
+ unsigned char *buf = dest;
-/*
- * serial_buf_alloc
- *
- * Allocate a circular buffer and all associated memory.
- */
-static struct circ_buf *serial_buf_alloc(void)
-{
- struct circ_buf *cb;
- cb = kmalloc(sizeof(struct circ_buf), GFP_KERNEL);
- if (cb == NULL)
- return NULL;
- cb->buf = kmalloc(AIRCABLE_BUF_SIZE, GFP_KERNEL);
- if (cb->buf == NULL) {
- kfree(cb);
- return NULL;
- }
- serial_buf_clear(cb);
- return cb;
-}
-
-/*
- * serial_buf_free
- *
- * Free the buffer and all associated memory.
- */
-static void serial_buf_free(struct circ_buf *cb)
-{
- kfree(cb->buf);
- kfree(cb);
-}
-
-/*
- * serial_buf_data_avail
- *
- * Return the number of bytes of data available in the circular
- * buffer.
- */
-static int serial_buf_data_avail(struct circ_buf *cb)
-{
- return CIRC_CNT(cb->head, cb->tail, AIRCABLE_BUF_SIZE);
-}
-
-/*
- * serial_buf_put
- *
- * Copy data data from a user buffer and put it into the circular buffer.
- * Restrict to the amount of space available.
- *
- * Return the number of bytes copied.
- */
-static int serial_buf_put(struct circ_buf *cb, const char *buf, int count)
-{
- int c, ret = 0;
- while (1) {
- c = CIRC_SPACE_TO_END(cb->head, cb->tail, AIRCABLE_BUF_SIZE);
- if (count < c)
- c = count;
- if (c <= 0)
- break;
- memcpy(cb->buf + cb->head, buf, c);
- cb->head = (cb->head + c) & (AIRCABLE_BUF_SIZE-1);
- buf += c;
- count -= c;
- ret = c;
- }
- return ret;
-}
-
-/*
- * serial_buf_get
- *
- * Get data from the circular buffer and copy to the given buffer.
- * Restrict to the amount of data available.
- *
- * Return the number of bytes copied.
- */
-static int serial_buf_get(struct circ_buf *cb, char *buf, int count)
-{
- int c, ret = 0;
- while (1) {
- c = CIRC_CNT_TO_END(cb->head, cb->tail, AIRCABLE_BUF_SIZE);
- if (count < c)
- c = count;
- if (c <= 0)
- break;
- memcpy(buf, cb->buf + cb->tail, c);
- cb->tail = (cb->tail + c) & (AIRCABLE_BUF_SIZE-1);
- buf += c;
- count -= c;
- ret = c;
- }
- return ret;
-}
-
-/* End of circula buffer methods */
-
-static void aircable_send(struct usb_serial_port *port)
-{
- int count, result;
- struct aircable_private *priv = usb_get_serial_port_data(port);
- unsigned char *buf;
- __le16 *dbuf;
- dbg("%s - port %d", __func__, port->number);
- if (port->write_urb_busy)
- return;
-
- count = min(serial_buf_data_avail(priv->tx_buf), MAX_HCI_FRAMESIZE);
- if (count == 0)
- return;
-
- buf = kzalloc(count + HCI_HEADER_LENGTH, GFP_ATOMIC);
- if (!buf) {
- dev_err(&port->dev, "%s- kzalloc(%d) failed.\n",
- __func__, count + HCI_HEADER_LENGTH);
- return;
- }
-
+ count = kfifo_out_locked(&port->write_fifo, buf + HCI_HEADER_LENGTH,
+ size - HCI_HEADER_LENGTH, &port->lock);
buf[0] = TX_HEADER_0;
buf[1] = TX_HEADER_1;
- dbuf = (__le16 *)&buf[2];
- *dbuf = cpu_to_le16((u16)count);
- serial_buf_get(priv->tx_buf, buf + HCI_HEADER_LENGTH,
- MAX_HCI_FRAMESIZE);
+ put_unaligned_le16(count, &buf[2]);
- memcpy(port->write_urb->transfer_buffer, buf,
- count + HCI_HEADER_LENGTH);
-
- kfree(buf);
- port->write_urb_busy = 1;
- usb_serial_debug_data(debug, &port->dev, __func__,
- count + HCI_HEADER_LENGTH,
- port->write_urb->transfer_buffer);
- port->write_urb->transfer_buffer_length = count + HCI_HEADER_LENGTH;
- port->write_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
-
- if (result) {
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- port->write_urb_busy = 0;
- }
-
- schedule_work(&port->work);
+ return count + HCI_HEADER_LENGTH;
}
-static void aircable_read(struct work_struct *work)
-{
- struct aircable_private *priv =
- container_of(work, struct aircable_private, rx_work);
- struct usb_serial_port *port = priv->port;
- struct tty_struct *tty;
- unsigned char *data;
- int count;
- if (priv->rx_flags & THROTTLED) {
- if (priv->rx_flags & ACTUALLY_THROTTLED)
- schedule_work(&priv->rx_work);
- return;
- }
-
- /* By now I will flush data to the tty in packages of no more than
- * 64 bytes, to ensure I do not get throttled.
- * Ask USB mailing list for better aproach.
- */
- tty = tty_port_tty_get(&port->port);
-
- if (!tty) {
- schedule_work(&priv->rx_work);
- dev_err(&port->dev, "%s - No tty available\n", __func__);
- return ;
- }
-
- count = min(64, serial_buf_data_avail(priv->rx_buf));
-
- if (count <= 0)
- goto out; /* We have finished sending everything. */
-
- tty_prepare_flip_string(tty, &data, count);
- if (!data) {
- dev_err(&port->dev, "%s- kzalloc(%d) failed.",
- __func__, count);
- goto out;
- }
-
- serial_buf_get(priv->rx_buf, data, count);
-
- tty_flip_buffer_push(tty);
-
- if (serial_buf_data_avail(priv->rx_buf))
- schedule_work(&priv->rx_work);
-out:
- tty_kref_put(tty);
- return;
-}
-/* End of private methods */
-
static int aircable_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
@@ -330,247 +123,50 @@
return 0;
}
-static int aircable_attach(struct usb_serial *serial)
+static int aircable_process_packet(struct tty_struct *tty,
+ struct usb_serial_port *port, int has_headers,
+ char *packet, int len)
{
- struct usb_serial_port *port = serial->port[0];
- struct aircable_private *priv;
-
- priv = kzalloc(sizeof(struct aircable_private), GFP_KERNEL);
- if (!priv) {
- dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
- sizeof(struct aircable_private));
- return -ENOMEM;
+ if (has_headers) {
+ len -= HCI_HEADER_LENGTH;
+ packet += HCI_HEADER_LENGTH;
+ }
+ if (len <= 0) {
+ dbg("%s - malformed packet", __func__);
+ return 0;
}
- /* Allocation of Circular Buffers */
- priv->tx_buf = serial_buf_alloc();
- if (priv->tx_buf == NULL) {
- kfree(priv);
- return -ENOMEM;
- }
+ tty_insert_flip_string(tty, packet, len);
- priv->rx_buf = serial_buf_alloc();
- if (priv->rx_buf == NULL) {
- kfree(priv->tx_buf);
- kfree(priv);
- return -ENOMEM;
- }
-
- priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
- priv->port = port;
- INIT_WORK(&priv->rx_work, aircable_read);
-
- usb_set_serial_port_data(serial->port[0], priv);
-
- return 0;
+ return len;
}
-static void aircable_release(struct usb_serial *serial)
-{
-
- struct usb_serial_port *port = serial->port[0];
- struct aircable_private *priv = usb_get_serial_port_data(port);
-
- dbg("%s", __func__);
-
- if (priv) {
- serial_buf_free(priv->tx_buf);
- serial_buf_free(priv->rx_buf);
- kfree(priv);
- }
-}
-
-static int aircable_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct aircable_private *priv = usb_get_serial_port_data(port);
- return serial_buf_data_avail(priv->tx_buf);
-}
-
-static int aircable_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *source, int count)
-{
- struct aircable_private *priv = usb_get_serial_port_data(port);
- int temp;
-
- dbg("%s - port %d, %d bytes", __func__, port->number, count);
-
- usb_serial_debug_data(debug, &port->dev, __func__, count, source);
-
- if (!count) {
- dbg("%s - write request of 0 bytes", __func__);
- return count;
- }
-
- temp = serial_buf_put(priv->tx_buf, source, count);
-
- aircable_send(port);
-
- if (count > AIRCABLE_BUF_SIZE)
- count = AIRCABLE_BUF_SIZE;
-
- return count;
-
-}
-
-static void aircable_write_bulk_callback(struct urb *urb)
+static void aircable_process_read_urb(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
- int status = urb->status;
- int result;
-
- dbg("%s - urb status: %d", __func__ , status);
-
- /* This has been taken from cypress_m8.c cypress_write_int_callback */
- switch (status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d",
- __func__, status);
- port->write_urb_busy = 0;
- return;
- default:
- /* error in the urb, so we have to resubmit it */
- dbg("%s - Overflow in write", __func__);
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
- port->write_urb->transfer_buffer_length = 1;
- port->write_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev,
- "%s - failed resubmitting write urb, error %d\n",
- __func__, result);
- else
- return;
- }
-
- port->write_urb_busy = 0;
-
- aircable_send(port);
-}
-
-static void aircable_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct aircable_private *priv = usb_get_serial_port_data(port);
+ char *data = (char *)urb->transfer_buffer;
struct tty_struct *tty;
- unsigned long no_packages, remaining, package_length, i;
- int result, shift = 0;
- unsigned char *temp;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - urb status = %d", __func__, status);
- if (status == -EPROTO) {
- dbg("%s - caught -EPROTO, resubmitting the urb",
- __func__);
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- aircable_read_bulk_callback, port);
-
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- return;
- }
- dbg("%s - unable to handle the error, exiting.", __func__);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, urb->transfer_buffer);
+ int has_headers;
+ int count;
+ int len;
+ int i;
tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- if (urb->actual_length <= 2) {
- /* This is an incomplete package */
- serial_buf_put(priv->rx_buf, urb->transfer_buffer,
- urb->actual_length);
- } else {
- temp = urb->transfer_buffer;
- if (temp[0] == RX_HEADER_0)
- shift = HCI_HEADER_LENGTH;
+ if (!tty)
+ return;
- remaining = urb->actual_length;
- no_packages = urb->actual_length / (HCI_COMPLETE_FRAME);
+ has_headers = (urb->actual_length > 2 && data[0] == RX_HEADER_0);
- if (urb->actual_length % HCI_COMPLETE_FRAME != 0)
- no_packages++;
-
- for (i = 0; i < no_packages; i++) {
- if (remaining > (HCI_COMPLETE_FRAME))
- package_length = HCI_COMPLETE_FRAME;
- else
- package_length = remaining;
- remaining -= package_length;
-
- serial_buf_put(priv->rx_buf,
- urb->transfer_buffer + shift +
- (HCI_COMPLETE_FRAME) * (i),
- package_length - shift);
- }
- }
- aircable_read(&priv->rx_work);
+ count = 0;
+ for (i = 0; i < urb->actual_length; i += HCI_COMPLETE_FRAME) {
+ len = min_t(int, urb->actual_length - i, HCI_COMPLETE_FRAME);
+ count += aircable_process_packet(tty, port, has_headers,
+ &data[i], len);
}
+
+ if (count)
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
-
- /* Schedule the next read */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- aircable_read_bulk_callback, port);
-
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result && result != -EPERM)
- dev_err(&urb->dev->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
-}
-
-/* Based on ftdi_sio.c throttle */
-static void aircable_throttle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct aircable_private *priv = usb_get_serial_port_data(port);
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irq(&priv->rx_lock);
- priv->rx_flags |= THROTTLED;
- spin_unlock_irq(&priv->rx_lock);
-}
-
-/* Based on ftdi_sio.c unthrottle */
-static void aircable_unthrottle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct aircable_private *priv = usb_get_serial_port_data(port);
- int actually_throttled;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irq(&priv->rx_lock);
- actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED;
- priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED);
- spin_unlock_irq(&priv->rx_lock);
-
- if (actually_throttled)
- schedule_work(&priv->rx_work);
}
static struct usb_driver aircable_driver = {
@@ -589,15 +185,12 @@
.usb_driver = &aircable_driver,
.id_table = id_table,
.num_ports = 1,
- .attach = aircable_attach,
+ .bulk_out_size = HCI_COMPLETE_FRAME,
.probe = aircable_probe,
- .release = aircable_release,
- .write = aircable_write,
- .write_room = aircable_write_room,
- .write_bulk_callback = aircable_write_bulk_callback,
- .read_bulk_callback = aircable_read_bulk_callback,
- .throttle = aircable_throttle,
- .unthrottle = aircable_unthrottle,
+ .process_read_urb = aircable_process_read_urb,
+ .prepare_write_buffer = aircable_prepare_write_buffer,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
};
static int __init aircable_init(void)
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 9b66bf1..4e41a2a 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -42,7 +42,7 @@
* Version information
*/
-#define DRIVER_VERSION "v0.5"
+#define DRIVER_VERSION "v0.6"
#define DRIVER_AUTHOR "Bart Hartgers <bart.hartgers+ark3116@gmail.com>"
#define DRIVER_DESC "USB ARK3116 serial/IrDA driver"
#define DRIVER_DEV_DESC "ARK3116 RS232/IrDA"
@@ -355,14 +355,11 @@
/* deactivate interrupts */
ark3116_write_reg(serial, UART_IER, 0);
- /* shutdown any bulk reads that might be going on */
- if (serial->num_bulk_out)
- usb_kill_urb(port->write_urb);
- if (serial->num_bulk_in)
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
if (serial->num_interrupt_in)
usb_kill_urb(port->interrupt_in_urb);
}
+
}
static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port)
@@ -675,87 +672,45 @@
* error for the next block of data as well...
* For now, let's pretend this can't happen.
*/
-
-static void send_to_tty(struct tty_struct *tty,
- const unsigned char *chars,
- size_t size, char flag)
+static void ark3116_process_read_urb(struct urb *urb)
{
- if (size == 0)
- return;
- if (flag == TTY_NORMAL) {
- tty_insert_flip_string(tty, chars, size);
- } else {
- int i;
- for (i = 0; i < size; ++i)
- tty_insert_flip_char(tty, chars[i], flag);
- }
-}
-
-static void ark3116_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
+ struct usb_serial_port *port = urb->context;
struct ark3116_private *priv = usb_get_serial_port_data(port);
- const __u8 *data = urb->transfer_buffer;
- int status = urb->status;
struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ char tty_flag = TTY_NORMAL;
unsigned long flags;
- int result;
- char flag;
__u32 lsr;
- switch (status) {
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d",
- __func__, status);
+ /* update line status */
+ spin_lock_irqsave(&priv->status_lock, flags);
+ lsr = priv->lsr;
+ priv->lsr &= ~UART_LSR_BRK_ERROR_BITS;
+ spin_unlock_irqrestore(&priv->status_lock, flags);
+
+ if (!urb->actual_length)
return;
- default:
- dbg("%s - nonzero urb status received: %d",
- __func__, status);
- break;
- case 0: /* success */
- spin_lock_irqsave(&priv->status_lock, flags);
- lsr = priv->lsr;
- /* clear error bits */
- priv->lsr &= ~UART_LSR_BRK_ERROR_BITS;
- spin_unlock_irqrestore(&priv->status_lock, flags);
+ tty = tty_port_tty_get(&port->port);
+ if (!tty)
+ return;
- if (unlikely(lsr & UART_LSR_BI))
- flag = TTY_BREAK;
- else if (unlikely(lsr & UART_LSR_PE))
- flag = TTY_PARITY;
- else if (unlikely(lsr & UART_LSR_FE))
- flag = TTY_FRAME;
- else
- flag = TTY_NORMAL;
+ if (lsr & UART_LSR_BRK_ERROR_BITS) {
+ if (lsr & UART_LSR_BI)
+ tty_flag = TTY_BREAK;
+ else if (lsr & UART_LSR_PE)
+ tty_flag = TTY_PARITY;
+ else if (lsr & UART_LSR_FE)
+ tty_flag = TTY_FRAME;
- tty = tty_port_tty_get(&port->port);
- if (tty) {
- /* overrun is special, not associated with a char */
- if (unlikely(lsr & UART_LSR_OE))
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- send_to_tty(tty, data, urb->actual_length, flag);
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
- }
-
- /* Throttle the device if requested by tty */
- spin_lock_irqsave(&port->lock, flags);
- port->throttled = port->throttle_req;
- if (port->throttled) {
- spin_unlock_irqrestore(&port->lock, flags);
- return;
- } else
- spin_unlock_irqrestore(&port->lock, flags);
+ /* overrun is special, not associated with a char */
+ if (lsr & UART_LSR_OE)
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
}
- /* Continue reading from device */
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev, "%s - failed resubmitting"
- " read urb, error %d\n", __func__, result);
+ tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
+ urb->actual_length);
+ tty_flip_buffer_push(tty);
+ tty_kref_put(tty);
}
static struct usb_driver ark3116_driver = {
@@ -785,7 +740,7 @@
.close = ark3116_close,
.break_ctl = ark3116_break_ctl,
.read_int_callback = ark3116_read_int_callback,
- .read_bulk_callback = ark3116_read_bulk_callback,
+ .process_read_urb = ark3116_process_read_urb,
};
static int __init ark3116_init(void)
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 1295e44..36df352 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -3,6 +3,7 @@
*
* Copyright (C) 2000 William Greathouse (wgreathouse@smva.com)
* Copyright (C) 2000-2001 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com)
*
* This program is largely derived from work by the linux-usb group
* and associated source files. Please see the usb/serial files for
@@ -84,7 +85,7 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v1.2"
+#define DRIVER_VERSION "v1.3"
#define DRIVER_AUTHOR "William Greathouse <wgreathouse@smva.com>"
#define DRIVER_DESC "USB Belkin Serial converter driver"
@@ -95,6 +96,7 @@
struct usb_serial_port *port);
static void belkin_sa_close(struct usb_serial_port *port);
static void belkin_sa_read_int_callback(struct urb *urb);
+static void belkin_sa_process_read_urb(struct urb *urb);
static void belkin_sa_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios * old);
static void belkin_sa_break_ctl(struct tty_struct *tty, int break_state);
@@ -112,7 +114,6 @@
{ USB_DEVICE(BELKIN_DOCKSTATION_VID, BELKIN_DOCKSTATION_PID) },
{ } /* Terminating entry */
};
-
MODULE_DEVICE_TABLE(usb, id_table_combined);
static struct usb_driver belkin_driver = {
@@ -120,7 +121,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
- .no_dynamic_id = 1,
+ .no_dynamic_id = 1,
};
/* All of the device info needed for the serial converters */
@@ -136,7 +137,7 @@
.open = belkin_sa_open,
.close = belkin_sa_close,
.read_int_callback = belkin_sa_read_int_callback,
- /* How we get the status info */
+ .process_read_urb = belkin_sa_process_read_urb,
.set_termios = belkin_sa_set_termios,
.break_ctl = belkin_sa_break_ctl,
.tiocmget = belkin_sa_tiocmget,
@@ -145,7 +146,6 @@
.release = belkin_sa_release,
};
-
struct belkin_sa_private {
spinlock_t lock;
unsigned long control_state;
@@ -196,62 +196,43 @@
return 0;
}
-
static void belkin_sa_release(struct usb_serial *serial)
{
- struct belkin_sa_private *priv;
int i;
dbg("%s", __func__);
- for (i = 0; i < serial->num_ports; ++i) {
- /* My special items, the standard routines free my urbs */
- priv = usb_get_serial_port_data(serial->port[i]);
- kfree(priv);
- }
+ for (i = 0; i < serial->num_ports; ++i)
+ kfree(usb_get_serial_port_data(serial->port[i]));
}
-
-static int belkin_sa_open(struct tty_struct *tty,
+static int belkin_sa_open(struct tty_struct *tty,
struct usb_serial_port *port)
{
- int retval = 0;
+ int retval;
dbg("%s port %d", __func__, port->number);
- /*Start reading from the device*/
- /* TODO: Look at possibility of submitting multiple URBs to device to
- * enhance buffering. Win trace shows 16 initial read URBs.
- */
- port->read_urb->dev = port->serial->dev;
- retval = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (retval) {
- dev_err(&port->dev, "usb_submit_urb(read bulk) failed\n");
- goto exit;
- }
-
- port->interrupt_in_urb->dev = port->serial->dev;
retval = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (retval) {
- usb_kill_urb(port->read_urb);
dev_err(&port->dev, "usb_submit_urb(read int) failed\n");
+ return retval;
}
-exit:
- return retval;
-} /* belkin_sa_open */
+ retval = usb_serial_generic_open(tty, port);
+ if (retval)
+ usb_kill_urb(port->interrupt_in_urb);
+ return retval;
+}
static void belkin_sa_close(struct usb_serial_port *port)
{
dbg("%s port %d", __func__, port->number);
- /* shutdown our bulk reads and writes */
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
usb_kill_urb(port->interrupt_in_urb);
-} /* belkin_sa_close */
-
+}
static void belkin_sa_read_int_callback(struct urb *urb)
{
@@ -310,31 +291,7 @@
else
priv->control_state &= ~TIOCM_CD;
- /* Now to report any errors */
priv->last_lsr = data[BELKIN_SA_LSR_INDEX];
-#if 0
- /*
- * fill in the flip buffer here, but I do not know the relation
- * to the current/next receive buffer or characters. I need
- * to look in to this before committing any code.
- */
- if (priv->last_lsr & BELKIN_SA_LSR_ERR) {
- tty = tty_port_tty_get(&port->port);
- /* Overrun Error */
- if (priv->last_lsr & BELKIN_SA_LSR_OE) {
- }
- /* Parity Error */
- if (priv->last_lsr & BELKIN_SA_LSR_PE) {
- }
- /* Framing Error */
- if (priv->last_lsr & BELKIN_SA_LSR_FE) {
- }
- /* Break Indicator */
- if (priv->last_lsr & BELKIN_SA_LSR_BI) {
- }
- tty_kref_put(tty);
- }
-#endif
spin_unlock_irqrestore(&priv->lock, flags);
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
@@ -343,6 +300,53 @@
"result %d\n", __func__, retval);
}
+static void belkin_sa_process_read_urb(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ struct belkin_sa_private *priv = usb_get_serial_port_data(port);
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ unsigned long flags;
+ unsigned char status;
+ char tty_flag;
+
+ /* Update line status */
+ tty_flag = TTY_NORMAL;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ status = priv->last_lsr;
+ priv->last_lsr &= ~BELKIN_SA_LSR_ERR;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (!urb->actual_length)
+ return;
+
+ tty = tty_port_tty_get(&port->port);
+ if (!tty)
+ return;
+
+ if (status & BELKIN_SA_LSR_ERR) {
+ /* Break takes precedence over parity, which takes precedence
+ * over framing errors. */
+ if (status & BELKIN_SA_LSR_BI)
+ tty_flag = TTY_BREAK;
+ else if (status & BELKIN_SA_LSR_PE)
+ tty_flag = TTY_PARITY;
+ else if (status & BELKIN_SA_LSR_FE)
+ tty_flag = TTY_FRAME;
+ dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag);
+
+ /* Overrun is special, not associated with a char. */
+ if (status & BELKIN_SA_LSR_OE)
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+ }
+
+ tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
+ urb->actual_length);
+ tty_flip_buffer_push(tty);
+ tty_kref_put(tty);
+}
+
static void belkin_sa_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
@@ -482,8 +486,7 @@
spin_lock_irqsave(&priv->lock, flags);
priv->control_state = control_state;
spin_unlock_irqrestore(&priv->lock, flags);
-} /* belkin_sa_set_termios */
-
+}
static void belkin_sa_break_ctl(struct tty_struct *tty, int break_state)
{
@@ -494,7 +497,6 @@
dev_err(&port->dev, "Set break_ctl %d\n", break_state);
}
-
static int belkin_sa_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
@@ -511,7 +513,6 @@
return control_state;
}
-
static int belkin_sa_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
@@ -583,7 +584,6 @@
return retval;
}
-
static void __exit belkin_sa_exit (void)
{
usb_deregister(&belkin_driver);
diff --git a/drivers/usb/serial/belkin_sa.h b/drivers/usb/serial/belkin_sa.h
index c66a673..c74b58a 100644
--- a/drivers/usb/serial/belkin_sa.h
+++ b/drivers/usb/serial/belkin_sa.h
@@ -8,10 +8,10 @@
* and associated source files. Please see the usb/serial files for
* individual credits and copyrights.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
* See Documentation/usb/usb-serial.txt for more information on using this
* driver
@@ -66,7 +66,7 @@
#ifdef WHEN_I_LEARN_THIS
#define BELKIN_SA_SET_MAGIC_REQUEST 17 /* I don't know, possibly flush */
/* (always in Wininit sequence before flow control) */
-#define BELKIN_SA_RESET xx /* Reset the port */
+#define BELKIN_SA_RESET xx /* Reset the port */
#define BELKIN_SA_GET_MODEM_STATUS xx /* Force return of modem status register */
#endif
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 7e8e398..63f7cc4 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -305,10 +305,7 @@
{
dbg("%s - port %d", __func__, port->number);
- /* shutdown our urbs */
- dbg("%s - shutting down urbs", __func__);
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
usb_kill_urb(port->interrupt_in_urb);
}
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index f347da2..1ee6b2a 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -66,7 +66,7 @@
struct usb_serial_port *port;
int retval;
struct tty_struct *tty = NULL;
- struct ktermios *termios = NULL, dummy;
+ struct ktermios dummy;
dbg("%s", __func__);
@@ -141,15 +141,14 @@
goto reset_open_count;
}
kref_init(&tty->kref);
- termios = kzalloc(sizeof(*termios), GFP_KERNEL);
- if (!termios) {
+ tty_port_tty_set(&port->port, tty);
+ tty->driver = usb_serial_tty_driver;
+ tty->index = co->index;
+ if (tty_init_termios(tty)) {
retval = -ENOMEM;
err("no more memory");
goto free_tty;
}
- memset(&dummy, 0, sizeof(struct ktermios));
- tty->termios = termios;
- tty_port_tty_set(&port->port, tty);
}
/* only call the device specific open if this
@@ -161,16 +160,16 @@
if (retval) {
err("could not open USB console port");
- goto free_termios;
+ goto fail;
}
if (serial->type->set_termios) {
- termios->c_cflag = cflag;
- tty_termios_encode_baud_rate(termios, baud, baud);
+ tty->termios->c_cflag = cflag;
+ tty_termios_encode_baud_rate(tty->termios, baud, baud);
+ memset(&dummy, 0, sizeof(struct ktermios));
serial->type->set_termios(tty, port, &dummy);
tty_port_tty_set(&port->port, NULL);
- kfree(termios);
kfree(tty);
}
set_bit(ASYNCB_INITIALIZED, &port->port.flags);
@@ -180,14 +179,12 @@
--port->port.count;
/* The console is special in terms of closing the device so
* indicate this port is now acting as a system console. */
- port->console = 1;
port->port.console = 1;
mutex_unlock(&serial->disc_mutex);
return retval;
- free_termios:
- kfree(termios);
+ fail:
tty_port_tty_set(&port->port, NULL);
free_tty:
kfree(tty);
@@ -217,7 +214,7 @@
dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
- if (!port->console) {
+ if (!port->port.console) {
dbg("%s - port not opened", __func__);
return;
}
@@ -313,7 +310,7 @@
{
if (usbcons_info.port) {
unregister_console(&usbcons);
- usbcons_info.port->console = 0;
+ usbcons_info.port->port.console = 0;
usbcons_info.port = NULL;
}
}
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index ec9b044..8b8c797 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -34,7 +34,6 @@
* Function Prototypes
*/
static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *);
-static void cp210x_cleanup(struct usb_serial_port *);
static void cp210x_close(struct usb_serial_port *);
static void cp210x_get_termios(struct tty_struct *,
struct usb_serial_port *port);
@@ -49,7 +48,6 @@
unsigned int, unsigned int);
static void cp210x_break_ctl(struct tty_struct *, int);
static int cp210x_startup(struct usb_serial *);
-static void cp210x_disconnect(struct usb_serial *);
static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
static int cp210x_carrier_raised(struct usb_serial_port *p);
@@ -61,6 +59,8 @@
{ USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */
{ USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
{ USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
+ { USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */
+ { USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */
{ USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
{ USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
{ USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */
@@ -72,9 +72,12 @@
{ USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */
{ USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */
{ USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
+ { USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */
+ { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */
{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
{ USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
+ { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */
{ USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */
{ USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */
{ USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */
@@ -82,12 +85,15 @@
{ USB_DEVICE(0x10C4, 0x8115) }, /* Arygon NFC/Mifare Reader */
{ USB_DEVICE(0x10C4, 0x813D) }, /* Burnside Telecom Deskmobile */
{ USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */
+ { USB_DEVICE(0x10C4, 0x8149) }, /* West Mountain Radio Computerized Battery Analyzer */
{ USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */
{ USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */
{ USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
+ { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
{ USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
{ USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */
{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
+ { USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
@@ -105,6 +111,7 @@
{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
{ USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
{ USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */
@@ -115,6 +122,8 @@
{ USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
{ USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
+ { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
+ { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
{ USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
{ } /* Terminating Entry */
@@ -138,6 +147,8 @@
.usb_driver = &cp210x_driver,
.id_table = id_table,
.num_ports = 1,
+ .bulk_in_size = 256,
+ .bulk_out_size = 256,
.open = cp210x_open,
.close = cp210x_close,
.break_ctl = cp210x_break_ctl,
@@ -145,7 +156,6 @@
.tiocmget = cp210x_tiocmget,
.tiocmset = cp210x_tiocmset,
.attach = cp210x_startup,
- .disconnect = cp210x_disconnect,
.dtr_rts = cp210x_dtr_rts,
.carrier_raised = cp210x_carrier_raised
};
@@ -370,7 +380,6 @@
static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
{
- struct usb_serial *serial = port->serial;
int result;
dbg("%s - port %d", __func__, port->number);
@@ -381,49 +390,20 @@
return -EPROTO;
}
- /* Start reading from the device */
- usb_fill_bulk_urb(port->read_urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- serial->type->read_bulk_callback,
- port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result) {
- dev_err(&port->dev, "%s - failed resubmitting read urb, "
- "error %d\n", __func__, result);
+ result = usb_serial_generic_open(tty, port);
+ if (result)
return result;
- }
/* Configure the termios structure */
cp210x_get_termios(tty, port);
return 0;
}
-static void cp210x_cleanup(struct usb_serial_port *port)
-{
- struct usb_serial *serial = port->serial;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (serial->dev) {
- /* shutdown any bulk reads that might be going on */
- if (serial->num_bulk_out)
- usb_kill_urb(port->write_urb);
- if (serial->num_bulk_in)
- usb_kill_urb(port->read_urb);
- }
-}
-
static void cp210x_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
- /* shutdown our urbs */
- dbg("%s - shutting down urbs", __func__);
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
mutex_lock(&port->serial->disc_mutex);
if (!port->serial->disconnected)
@@ -807,17 +787,6 @@
return 0;
}
-static void cp210x_disconnect(struct usb_serial *serial)
-{
- int i;
-
- dbg("%s", __func__);
-
- /* Stop reads and writes on all ports */
- for (i = 0; i < serial->num_ports; ++i)
- cp210x_cleanup(serial->port[i]);
-}
-
static int __init cp210x_init(void)
{
int retval;
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index e23c779..f5d0674 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -64,6 +64,7 @@
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/serial.h>
+#include <linux/kfifo.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <asm/unaligned.h>
@@ -79,13 +80,12 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v1.09"
+#define DRIVER_VERSION "v1.10"
#define DRIVER_AUTHOR "Lonnie Mendez <dignome@gmail.com>, Neil Whelchel <koyama@firstlight.net>"
#define DRIVER_DESC "Cypress USB to Serial Driver"
/* write buffer size defines */
#define CYPRESS_BUF_SIZE 1024
-#define CYPRESS_CLOSING_WAIT (30*HZ)
static const struct usb_device_id id_table_earthmate[] = {
{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) },
@@ -135,7 +135,7 @@
int bytes_out; /* used for statistics */
int cmd_count; /* used for statistics */
int cmd_ctrl; /* always set this to 1 before issuing a command */
- struct cypress_buf *buf; /* write buffer */
+ struct kfifo write_fifo; /* write fifo */
int write_urb_in_use; /* write urb in use indicator */
int write_urb_interval; /* interval to use for write urb */
int read_urb_interval; /* interval to use for read urb */
@@ -157,14 +157,6 @@
struct ktermios tmp_termios; /* stores the old termios settings */
};
-/* write buffer structure */
-struct cypress_buf {
- unsigned int buf_size;
- char *buf_buf;
- char *buf_get;
- char *buf_put;
-};
-
/* function prototypes for the Cypress USB to serial device */
static int cypress_earthmate_startup(struct usb_serial *serial);
static int cypress_hidcom_startup(struct usb_serial *serial);
@@ -190,17 +182,6 @@
static void cypress_set_dead(struct usb_serial_port *port);
static void cypress_read_int_callback(struct urb *urb);
static void cypress_write_int_callback(struct urb *urb);
-/* write buffer functions */
-static struct cypress_buf *cypress_buf_alloc(unsigned int size);
-static void cypress_buf_free(struct cypress_buf *cb);
-static void cypress_buf_clear(struct cypress_buf *cb);
-static unsigned int cypress_buf_data_avail(struct cypress_buf *cb);
-static unsigned int cypress_buf_space_avail(struct cypress_buf *cb);
-static unsigned int cypress_buf_put(struct cypress_buf *cb,
- const char *buf, unsigned int count);
-static unsigned int cypress_buf_get(struct cypress_buf *cb,
- char *buf, unsigned int count);
-
static struct usb_serial_driver cypress_earthmate_device = {
.driver = {
@@ -503,8 +484,7 @@
priv->comm_is_ok = !0;
spin_lock_init(&priv->lock);
- priv->buf = cypress_buf_alloc(CYPRESS_BUF_SIZE);
- if (priv->buf == NULL) {
+ if (kfifo_alloc(&priv->write_fifo, CYPRESS_BUF_SIZE, GFP_KERNEL)) {
kfree(priv);
return -ENOMEM;
}
@@ -627,7 +607,7 @@
priv = usb_get_serial_port_data(serial->port[0]);
if (priv) {
- cypress_buf_free(priv->buf);
+ kfifo_free(&priv->write_fifo);
kfree(priv);
}
}
@@ -704,6 +684,7 @@
static void cypress_close(struct usb_serial_port *port)
{
struct cypress_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
dbg("%s - port %d", __func__, port->number);
@@ -713,12 +694,14 @@
mutex_unlock(&port->serial->disc_mutex);
return;
}
- cypress_buf_clear(priv->buf);
+ spin_lock_irqsave(&priv->lock, flags);
+ kfifo_reset_out(&priv->write_fifo);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
dbg("%s - stopping urbs", __func__);
usb_kill_urb(port->interrupt_in_urb);
usb_kill_urb(port->interrupt_out_urb);
-
if (stats)
dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n",
priv->bytes_in, priv->bytes_out, priv->cmd_count);
@@ -730,7 +713,6 @@
const unsigned char *buf, int count)
{
struct cypress_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d, %d bytes", __func__, port->number, count);
@@ -745,9 +727,7 @@
if (!count)
return count;
- spin_lock_irqsave(&priv->lock, flags);
- count = cypress_buf_put(priv->buf, buf, count);
- spin_unlock_irqrestore(&priv->lock, flags);
+ count = kfifo_in_locked(&priv->write_fifo, buf, count, &priv->lock);
finish:
cypress_send(port);
@@ -807,9 +787,10 @@
} else
spin_unlock_irqrestore(&priv->lock, flags);
- count = cypress_buf_get(priv->buf, &port->interrupt_out_buffer[offset],
- port->interrupt_out_size-offset);
-
+ count = kfifo_out_locked(&priv->write_fifo,
+ &port->interrupt_out_buffer[offset],
+ port->interrupt_out_size - offset,
+ &priv->lock);
if (count == 0)
return;
@@ -875,7 +856,7 @@
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
- room = cypress_buf_space_avail(priv->buf);
+ room = kfifo_avail(&priv->write_fifo);
spin_unlock_irqrestore(&priv->lock, flags);
dbg("%s - returns %d", __func__, room);
@@ -1143,7 +1124,7 @@
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&priv->lock, flags);
- chars = cypress_buf_data_avail(priv->buf);
+ chars = kfifo_len(&priv->write_fifo);
spin_unlock_irqrestore(&priv->lock, flags);
dbg("%s - returns %d", __func__, chars);
@@ -1309,7 +1290,7 @@
/* process read if there is data other than line status */
if (tty && bytes > i) {
tty_insert_flip_string_fixed_flag(tty, data + i,
- bytes - i, tty_flag);
+ tty_flag, bytes - i);
tty_flip_buffer_push(tty);
}
@@ -1397,193 +1378,6 @@
/*****************************************************************************
- * Write buffer functions - buffering code from pl2303 used
- *****************************************************************************/
-
-/*
- * cypress_buf_alloc
- *
- * Allocate a circular buffer and all associated memory.
- */
-
-static struct cypress_buf *cypress_buf_alloc(unsigned int size)
-{
-
- struct cypress_buf *cb;
-
-
- if (size == 0)
- return NULL;
-
- cb = kmalloc(sizeof(struct cypress_buf), GFP_KERNEL);
- if (cb == NULL)
- return NULL;
-
- cb->buf_buf = kmalloc(size, GFP_KERNEL);
- if (cb->buf_buf == NULL) {
- kfree(cb);
- return NULL;
- }
-
- cb->buf_size = size;
- cb->buf_get = cb->buf_put = cb->buf_buf;
-
- return cb;
-
-}
-
-
-/*
- * cypress_buf_free
- *
- * Free the buffer and all associated memory.
- */
-
-static void cypress_buf_free(struct cypress_buf *cb)
-{
- if (cb) {
- kfree(cb->buf_buf);
- kfree(cb);
- }
-}
-
-
-/*
- * cypress_buf_clear
- *
- * Clear out all data in the circular buffer.
- */
-
-static void cypress_buf_clear(struct cypress_buf *cb)
-{
- if (cb != NULL)
- cb->buf_get = cb->buf_put;
- /* equivalent to a get of all data available */
-}
-
-
-/*
- * cypress_buf_data_avail
- *
- * Return the number of bytes of data available in the circular
- * buffer.
- */
-
-static unsigned int cypress_buf_data_avail(struct cypress_buf *cb)
-{
- if (cb != NULL)
- return (cb->buf_size + cb->buf_put - cb->buf_get)
- % cb->buf_size;
- else
- return 0;
-}
-
-
-/*
- * cypress_buf_space_avail
- *
- * Return the number of bytes of space available in the circular
- * buffer.
- */
-
-static unsigned int cypress_buf_space_avail(struct cypress_buf *cb)
-{
- if (cb != NULL)
- return (cb->buf_size + cb->buf_get - cb->buf_put - 1)
- % cb->buf_size;
- else
- return 0;
-}
-
-
-/*
- * cypress_buf_put
- *
- * Copy data data from a user buffer and put it into the circular buffer.
- * Restrict to the amount of space available.
- *
- * Return the number of bytes copied.
- */
-
-static unsigned int cypress_buf_put(struct cypress_buf *cb, const char *buf,
- unsigned int count)
-{
-
- unsigned int len;
-
-
- if (cb == NULL)
- return 0;
-
- len = cypress_buf_space_avail(cb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = cb->buf_buf + cb->buf_size - cb->buf_put;
- if (count > len) {
- memcpy(cb->buf_put, buf, len);
- memcpy(cb->buf_buf, buf+len, count - len);
- cb->buf_put = cb->buf_buf + count - len;
- } else {
- memcpy(cb->buf_put, buf, count);
- if (count < len)
- cb->buf_put += count;
- else /* count == len */
- cb->buf_put = cb->buf_buf;
- }
-
- return count;
-
-}
-
-
-/*
- * cypress_buf_get
- *
- * Get data from the circular buffer and copy to the given buffer.
- * Restrict to the amount of data available.
- *
- * Return the number of bytes copied.
- */
-
-static unsigned int cypress_buf_get(struct cypress_buf *cb, char *buf,
- unsigned int count)
-{
-
- unsigned int len;
-
-
- if (cb == NULL)
- return 0;
-
- len = cypress_buf_data_avail(cb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = cb->buf_buf + cb->buf_size - cb->buf_get;
- if (count > len) {
- memcpy(buf, cb->buf_get, len);
- memcpy(buf+len, cb->buf_buf, count - len);
- cb->buf_get = cb->buf_buf + count - len;
- } else {
- memcpy(buf, cb->buf_get, count);
- if (count < len)
- cb->buf_get += count;
- else /* count == len */
- cb->buf_get = cb->buf_buf;
- }
-
- return count;
-
-}
-
-/*****************************************************************************
* Module functions
*****************************************************************************/
diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index 1fd360e..67cf608 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -1,27 +1,32 @@
#ifndef CYPRESS_M8_H
#define CYPRESS_M8_H
-/* definitions and function prototypes used for the cypress USB to Serial controller */
+/*
+ * definitions and function prototypes used for the cypress USB to Serial
+ * controller
+ */
-/* For sending our feature buffer - controlling serial communication states */
-/* Linux HID has no support for serial devices so we do this through the driver */
-#define HID_REQ_GET_REPORT 0x01
-#define HID_REQ_SET_REPORT 0x09
+/*
+ * For sending our feature buffer - controlling serial communication states.
+ * Linux HID has no support for serial devices so we do this through the driver
+ */
+#define HID_REQ_GET_REPORT 0x01
+#define HID_REQ_SET_REPORT 0x09
/* List other cypress USB to Serial devices here, and add them to the id_table */
/* DeLorme Earthmate USB - a GPS device */
-#define VENDOR_ID_DELORME 0x1163
-#define PRODUCT_ID_EARTHMATEUSB 0x0100
-#define PRODUCT_ID_EARTHMATEUSB_LT20 0x0200
+#define VENDOR_ID_DELORME 0x1163
+#define PRODUCT_ID_EARTHMATEUSB 0x0100
+#define PRODUCT_ID_EARTHMATEUSB_LT20 0x0200
/* Cypress HID->COM RS232 Adapter */
-#define VENDOR_ID_CYPRESS 0x04b4
-#define PRODUCT_ID_CYPHIDCOM 0x5500
+#define VENDOR_ID_CYPRESS 0x04b4
+#define PRODUCT_ID_CYPHIDCOM 0x5500
/* Powercom UPS, chip CY7C63723 */
-#define VENDOR_ID_POWERCOM 0x0d9f
-#define PRODUCT_ID_UPS 0x0002
+#define VENDOR_ID_POWERCOM 0x0d9f
+#define PRODUCT_ID_UPS 0x0002
/* Nokia CA-42 USB to serial cable */
#define VENDOR_ID_DAZZLE 0x07d0
@@ -29,17 +34,17 @@
/* End of device listing */
/* Used for setting / requesting serial line settings */
-#define CYPRESS_SET_CONFIG 0x01
-#define CYPRESS_GET_CONFIG 0x02
+#define CYPRESS_SET_CONFIG 0x01
+#define CYPRESS_GET_CONFIG 0x02
/* Used for throttle control */
-#define THROTTLED 0x1
-#define ACTUALLY_THROTTLED 0x2
+#define THROTTLED 0x1
+#define ACTUALLY_THROTTLED 0x2
-/* chiptypes - used in case firmware differs from the generic form ... offering
- * different baud speeds/etc.
+/*
+ * chiptypes - used in case firmware differs from the generic form ... offering
+ * different baud speeds/etc.
*/
-
#define CT_EARTHMATE 0x01
#define CT_CYPHIDCOM 0x02
#define CT_CA42V2 0x03
@@ -50,15 +55,15 @@
/* these are sent / read at byte 0 of the input/output hid reports */
/* You can find these values defined in the CY4601 USB to Serial design notes */
-#define CONTROL_DTR 0x20 /* data terminal ready - flow control - host to device */
+#define CONTROL_DTR 0x20 /* data terminal ready - flow control - host to device */
#define UART_DSR 0x20 /* data set ready - flow control - device to host */
-#define CONTROL_RTS 0x10 /* request to send - flow control - host to device */
+#define CONTROL_RTS 0x10 /* request to send - flow control - host to device */
#define UART_CTS 0x10 /* clear to send - flow control - device to host */
-#define UART_RI 0x10 /* ring indicator - modem - device to host */
+#define UART_RI 0x10 /* ring indicator - modem - device to host */
#define UART_CD 0x40 /* carrier detect - modem - device to host */
-#define CYP_ERROR 0x08 /* received from input report - device to host */
+#define CYP_ERROR 0x08 /* received from input report - device to host */
/* Note - the below has nothing to do with the "feature report" reset */
-#define CONTROL_RESET 0x08 /* sent with output report - host to device */
+#define CONTROL_RESET 0x08 /* sent with output report - host to device */
/* End of RS-232 protocol definitions */
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 68b0aa5..3edda3e 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1703,8 +1703,8 @@
/* data length is len-1 (one byte of len is port_status) */
--len;
if (len > 0) {
- tty_insert_flip_string_fixed_flag(tty, data, len,
- flag);
+ tty_insert_flip_string_fixed_flag(tty, data, flag,
+ len);
tty_flip_buffer_push(tty);
}
}
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 5f740a1..504b558 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -13,44 +13,6 @@
*
* See Documentation/usb/usb-serial.txt for more information on using this
* driver
- *
- * (07/16/2001) gb
- * remove unused code in empeg_close() (thanks to Oliver Neukum for
- * pointing this out) and rewrote empeg_set_termios().
- *
- * (05/30/2001) gkh
- * switched from using spinlock to a semaphore, which fixes lots of
- * problems.
- *
- * (04/08/2001) gb
- * Identify version on module load.
- *
- * (01/22/2001) gb
- * Added write_room() and chars_in_buffer() support.
- *
- * (12/21/2000) gb
- * Moved termio stuff inside the port->active check.
- * Moved MOD_DEC_USE_COUNT to end of empeg_close().
- *
- * (12/03/2000) gb
- * Added tty->ldisc.set_termios(port, tty, NULL) to empeg_open().
- * This notifies the tty driver that the termios have changed.
- *
- * (11/13/2000) gb
- * Moved tty->low_latency = 1 from empeg_read_bulk_callback() to
- * empeg_open() (It only needs to be set once - Doh!)
- *
- * (11/11/2000) gb
- * Updated to work with id_table structure.
- *
- * (11/04/2000) gb
- * Forked this from visor.c, and hacked it up to work with an
- * Empeg ltd. empeg-car player. Constructive criticism welcomed.
- * I would like to say, 'Thank You' to Greg Kroah-Hartman for the
- * use of his code, and for his guidance, advice and patience. :)
- * A 'Thank You' is in order for John Ripley of Empeg ltd for his
- * advice, and patience too.
- *
*/
#include <linux/kernel.h>
@@ -71,7 +33,7 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v1.2"
+#define DRIVER_VERSION "v1.3"
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Gary Brubaker <xavyer@ix.netcom.com>"
#define DRIVER_DESC "USB Empeg Mark I/II Driver"
@@ -79,19 +41,8 @@
#define EMPEG_PRODUCT_ID 0x0001
/* function prototypes for an empeg-car player */
-static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port);
-static void empeg_close(struct usb_serial_port *port);
-static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf,
- int count);
-static int empeg_write_room(struct tty_struct *tty);
-static int empeg_chars_in_buffer(struct tty_struct *tty);
-static void empeg_throttle(struct tty_struct *tty);
-static void empeg_unthrottle(struct tty_struct *tty);
static int empeg_startup(struct usb_serial *serial);
static void empeg_init_termios(struct tty_struct *tty);
-static void empeg_write_bulk_callback(struct urb *urb);
-static void empeg_read_bulk_callback(struct urb *urb);
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(EMPEG_VENDOR_ID, EMPEG_PRODUCT_ID) },
@@ -105,7 +56,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
- .no_dynamic_id = 1,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver empeg_device = {
@@ -114,291 +65,16 @@
.name = "empeg",
},
.id_table = id_table,
- .usb_driver = &empeg_driver,
+ .usb_driver = &empeg_driver,
.num_ports = 1,
- .open = empeg_open,
- .close = empeg_close,
- .throttle = empeg_throttle,
- .unthrottle = empeg_unthrottle,
+ .bulk_out_size = 256,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
.attach = empeg_startup,
.init_termios = empeg_init_termios,
- .write = empeg_write,
- .write_room = empeg_write_room,
- .chars_in_buffer = empeg_chars_in_buffer,
- .write_bulk_callback = empeg_write_bulk_callback,
- .read_bulk_callback = empeg_read_bulk_callback,
};
-#define NUM_URBS 16
-#define URB_TRANSFER_BUFFER_SIZE 4096
-
-static struct urb *write_urb_pool[NUM_URBS];
-static spinlock_t write_urb_pool_lock;
-static int bytes_in;
-static int bytes_out;
-
-/******************************************************************************
- * Empeg specific driver functions
- ******************************************************************************/
-static int empeg_open(struct tty_struct *tty,struct usb_serial_port *port)
-{
- struct usb_serial *serial = port->serial;
- int result = 0;
-
- dbg("%s - port %d", __func__, port->number);
-
- bytes_in = 0;
- bytes_out = 0;
-
- /* Start reading from the device */
- usb_fill_bulk_urb(
- port->read_urb,
- serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- empeg_read_bulk_callback,
- port);
-
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
-
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
-
- return result;
-}
-
-
-static void empeg_close(struct usb_serial_port *port)
-{
- dbg("%s - port %d", __func__, port->number);
-
- /* shutdown our bulk read */
- usb_kill_urb(port->read_urb);
- /* Uncomment the following line if you want to see some statistics in your syslog */
- /* dev_info (&port->dev, "Bytes In = %d Bytes Out = %d\n", bytes_in, bytes_out); */
-}
-
-
-static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct usb_serial *serial = port->serial;
- struct urb *urb;
- const unsigned char *current_position = buf;
- unsigned long flags;
- int status;
- int i;
- int bytes_sent = 0;
- int transfer_size;
-
- dbg("%s - port %d", __func__, port->number);
-
- while (count > 0) {
- /* try to find a free urb in our list of them */
- urb = NULL;
-
- spin_lock_irqsave(&write_urb_pool_lock, flags);
-
- for (i = 0; i < NUM_URBS; ++i) {
- if (write_urb_pool[i]->status != -EINPROGRESS) {
- urb = write_urb_pool[i];
- break;
- }
- }
-
- spin_unlock_irqrestore(&write_urb_pool_lock, flags);
-
- if (urb == NULL) {
- dbg("%s - no more free urbs", __func__);
- goto exit;
- }
-
- if (urb->transfer_buffer == NULL) {
- urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC);
- if (urb->transfer_buffer == NULL) {
- dev_err(&port->dev,
- "%s no more kernel memory...\n",
- __func__);
- goto exit;
- }
- }
-
- transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
-
- memcpy(urb->transfer_buffer, current_position, transfer_size);
-
- usb_serial_debug_data(debug, &port->dev, __func__, transfer_size, urb->transfer_buffer);
-
- /* build up our urb */
- usb_fill_bulk_urb(
- urb,
- serial->dev,
- usb_sndbulkpipe(serial->dev,
- port->bulk_out_endpointAddress),
- urb->transfer_buffer,
- transfer_size,
- empeg_write_bulk_callback,
- port);
-
- /* send it down the pipe */
- status = usb_submit_urb(urb, GFP_ATOMIC);
- if (status) {
- dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n", __func__, status);
- bytes_sent = status;
- break;
- }
-
- current_position += transfer_size;
- bytes_sent += transfer_size;
- count -= transfer_size;
- bytes_out += transfer_size;
-
- }
-exit:
- return bytes_sent;
-}
-
-
-static int empeg_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- unsigned long flags;
- int i;
- int room = 0;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&write_urb_pool_lock, flags);
- /* tally up the number of bytes available */
- for (i = 0; i < NUM_URBS; ++i) {
- if (write_urb_pool[i]->status != -EINPROGRESS)
- room += URB_TRANSFER_BUFFER_SIZE;
- }
- spin_unlock_irqrestore(&write_urb_pool_lock, flags);
- dbg("%s - returns %d", __func__, room);
- return room;
-
-}
-
-
-static int empeg_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- unsigned long flags;
- int i;
- int chars = 0;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&write_urb_pool_lock, flags);
-
- /* tally up the number of bytes waiting */
- for (i = 0; i < NUM_URBS; ++i) {
- if (write_urb_pool[i]->status == -EINPROGRESS)
- chars += URB_TRANSFER_BUFFER_SIZE;
- }
-
- spin_unlock_irqrestore(&write_urb_pool_lock, flags);
- dbg("%s - returns %d", __func__, chars);
- return chars;
-}
-
-
-static void empeg_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_port_softint(port);
-}
-
-
-static void empeg_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct tty_struct *tty;
- unsigned char *data = urb->transfer_buffer;
- int result;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
- tty = tty_port_tty_get(&port->port);
-
- if (urb->actual_length) {
- tty_insert_flip_string(tty, data, urb->actual_length);
- tty_flip_buffer_push(tty);
- bytes_in += urb->actual_length;
- }
- tty_kref_put(tty);
-
- /* Continue trying to always read */
- usb_fill_bulk_urb(
- port->read_urb,
- port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- empeg_read_bulk_callback,
- port);
-
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
-
- if (result)
- dev_err(&urb->dev->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
-
- return;
-
-}
-
-
-static void empeg_throttle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- dbg("%s - port %d", __func__, port->number);
- usb_kill_urb(port->read_urb);
-}
-
-
-static void empeg_unthrottle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- int result;
- dbg("%s - port %d", __func__, port->number);
-
- port->read_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
-}
-
-
-static int empeg_startup(struct usb_serial *serial)
+static int empeg_startup(struct usb_serial *serial)
{
int r;
@@ -414,10 +90,8 @@
/* continue on with initialization */
return r;
-
}
-
static void empeg_init_termios(struct tty_struct *tty)
{
struct ktermios *termios = tty->termios;
@@ -462,77 +136,28 @@
tty_encode_baud_rate(tty, 115200, 115200);
}
-
static int __init empeg_init(void)
{
- struct urb *urb;
- int i, retval;
-
- /* create our write urb pool and transfer buffers */
- spin_lock_init(&write_urb_pool_lock);
- for (i = 0; i < NUM_URBS; ++i) {
- urb = usb_alloc_urb(0, GFP_KERNEL);
- write_urb_pool[i] = urb;
- if (urb == NULL) {
- printk(KERN_ERR "empeg: No more urbs???\n");
- continue;
- }
-
- urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
- GFP_KERNEL);
- if (!urb->transfer_buffer) {
- printk(KERN_ERR "empeg: %s - out of memory for urb "
- "buffers.", __func__);
- continue;
- }
- }
+ int retval;
retval = usb_serial_register(&empeg_device);
if (retval)
- goto failed_usb_serial_register;
+ return retval;
retval = usb_register(&empeg_driver);
- if (retval)
- goto failed_usb_register;
-
+ if (retval) {
+ usb_serial_deregister(&empeg_device);
+ return retval;
+ }
printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
DRIVER_DESC "\n");
return 0;
-failed_usb_register:
- usb_serial_deregister(&empeg_device);
-failed_usb_serial_register:
- for (i = 0; i < NUM_URBS; ++i) {
- if (write_urb_pool[i]) {
- kfree(write_urb_pool[i]->transfer_buffer);
- usb_free_urb(write_urb_pool[i]);
- }
- }
- return retval;
}
-
static void __exit empeg_exit(void)
{
- int i;
- unsigned long flags;
-
usb_deregister(&empeg_driver);
usb_serial_deregister(&empeg_device);
-
- spin_lock_irqsave(&write_urb_pool_lock, flags);
-
- for (i = 0; i < NUM_URBS; ++i) {
- if (write_urb_pool[i]) {
- /* FIXME - uncomment the following usb_kill_urb call
- * when the host controllers get fixed to set urb->dev
- * = NULL after the urb is finished. Otherwise this
- * call oopses. */
- /* usb_kill_urb(write_urb_pool[i]); */
- kfree(write_urb_pool[i]->transfer_buffer);
- usb_free_urb(write_urb_pool[i]);
- }
- }
- spin_unlock_irqrestore(&write_urb_pool_lock, flags);
}
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 1d7c4fa..050211a 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1,6 +1,8 @@
/*
* USB FTDI SIO driver
*
+ * Copyright (C) 2009 - 2010
+ * Johan Hovold (jhovold@gmail.com)
* Copyright (C) 1999 - 2001
* Greg Kroah-Hartman (greg@kroah.com)
* Bill Ryder (bryder@sgi.com)
@@ -49,8 +51,8 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v1.5.0"
-#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr"
+#define DRIVER_VERSION "v1.6.0"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr, Johan Hovold <jhovold@gmail.com>"
#define DRIVER_DESC "USB FTDI Serial Converters Driver"
static int debug;
@@ -59,7 +61,7 @@
struct ftdi_private {
struct kref kref;
- ftdi_chip_type_t chip_type;
+ enum ftdi_chip_type chip_type;
/* type of device, either SIO or FT8U232AM */
int baud_base; /* baud base clock for divisor setting */
int custom_divisor; /* custom_divisor kludge, this is for
@@ -69,10 +71,6 @@
/* the last data state set - needed for doing
* a break
*/
- int write_offset; /* This is the offset in the usb data block to
- * write the serial data - it varies between
- * devices
- */
int flags; /* some ASYNC_xxxx flags are supported */
unsigned long last_dtr_rts; /* saved modem control outputs */
wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
@@ -87,9 +85,6 @@
be enabled */
unsigned int latency; /* latency setting in use */
- spinlock_t tx_lock; /* spinlock for transmit state */
- unsigned long tx_outstanding_bytes;
- unsigned long tx_outstanding_urbs;
unsigned short max_packet_size;
struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() and change_speed() */
};
@@ -768,9 +763,6 @@
};
-/* Constants for read urb and write urb */
-#define BUFSZ 512
-
/* Used for TIOCMIWAIT */
#define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
#define FTDI_STATUS_B1_MASK (FTDI_RS_BI)
@@ -787,13 +779,9 @@
static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
static void ftdi_close(struct usb_serial_port *port);
static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
-static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static int ftdi_write_room(struct tty_struct *tty);
-static int ftdi_chars_in_buffer(struct tty_struct *tty);
-static void ftdi_write_bulk_callback(struct urb *urb);
-static void ftdi_read_bulk_callback(struct urb *urb);
-static void ftdi_process_read(struct usb_serial_port *port);
+static void ftdi_process_read_urb(struct urb *urb);
+static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size);
static void ftdi_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
static int ftdi_tiocmget(struct tty_struct *tty, struct file *file);
@@ -802,8 +790,6 @@
static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
-static void ftdi_throttle(struct tty_struct *tty);
-static void ftdi_unthrottle(struct tty_struct *tty);
static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
static unsigned short int ftdi_232am_baud_to_divisor(int baud);
@@ -821,19 +807,18 @@
.usb_driver = &ftdi_driver,
.id_table = id_table_combined,
.num_ports = 1,
+ .bulk_in_size = 512,
+ .bulk_out_size = 256,
.probe = ftdi_sio_probe,
.port_probe = ftdi_sio_port_probe,
.port_remove = ftdi_sio_port_remove,
.open = ftdi_open,
.close = ftdi_close,
.dtr_rts = ftdi_dtr_rts,
- .throttle = ftdi_throttle,
- .unthrottle = ftdi_unthrottle,
- .write = ftdi_write,
- .write_room = ftdi_write_room,
- .chars_in_buffer = ftdi_chars_in_buffer,
- .read_bulk_callback = ftdi_read_bulk_callback,
- .write_bulk_callback = ftdi_write_bulk_callback,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
+ .process_read_urb = ftdi_process_read_urb,
+ .prepare_write_buffer = ftdi_prepare_write_buffer,
.tiocmget = ftdi_tiocmget,
.tiocmset = ftdi_tiocmset,
.ioctl = ftdi_ioctl,
@@ -849,9 +834,6 @@
#define HIGH 1
#define LOW 0
-/* number of outstanding urbs to prevent userspace DoS from happening */
-#define URB_UPPER_LIMIT 42
-
/*
* ***************************************************************************
* Utility functions
@@ -987,7 +969,7 @@
static __u32 get_ftdi_divisor(struct tty_struct *tty,
struct usb_serial_port *port)
-{ /* get_ftdi_divisor */
+{
struct ftdi_private *priv = usb_get_serial_port_data(port);
__u32 div_value = 0;
int div_okay = 1;
@@ -1211,12 +1193,11 @@
if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
return -EFAULT;
return 0;
-} /* get_serial_info */
-
+}
static int set_serial_info(struct tty_struct *tty,
struct usb_serial_port *port, struct serial_struct __user *newinfo)
-{ /* set_serial_info */
+{
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct serial_struct new_serial;
struct ftdi_private old_priv;
@@ -1279,8 +1260,7 @@
else
mutex_unlock(&priv->cfg_lock);
return 0;
-
-} /* set_serial_info */
+}
/* Determine type of FTDI chip based on USB config and descriptor. */
@@ -1294,7 +1274,6 @@
/* Assume it is not the original SIO device for now. */
priv->baud_base = 48000000 / 2;
- priv->write_offset = 0;
version = le16_to_cpu(udev->descriptor.bcdDevice);
interfaces = udev->actconfig->desc.bNumInterfaces;
@@ -1336,7 +1315,6 @@
/* Old device. Assume it's the original SIO. */
priv->chip_type = SIO;
priv->baud_base = 12000000 / 16;
- priv->write_offset = 1;
} else if (version < 0x400) {
/* Assume it's an FT8U232AM (or FT8U245AM) */
/* (It might be a BM because of the iSerialNumber bug,
@@ -1543,7 +1521,6 @@
}
kref_init(&priv->kref);
- spin_lock_init(&priv->tx_lock);
mutex_init(&priv->cfg_lock);
init_waitqueue_head(&priv->delta_msr_wait);
@@ -1552,28 +1529,7 @@
if (quirk && quirk->port_probe)
quirk->port_probe(priv);
- /* Increase the size of read buffers */
- kfree(port->bulk_in_buffer);
- port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL);
- if (!port->bulk_in_buffer) {
- kfree(priv);
- return -ENOMEM;
- }
- if (port->read_urb) {
- port->read_urb->transfer_buffer = port->bulk_in_buffer;
- port->read_urb->transfer_buffer_length = BUFSZ;
- }
-
priv->port = port;
-
- /* Free port's existing write urb and transfer buffer. */
- if (port->write_urb) {
- usb_free_urb(port->write_urb);
- port->write_urb = NULL;
- }
- kfree(port->bulk_out_buffer);
- port->bulk_out_buffer = NULL;
-
usb_set_serial_port_data(port, priv);
ftdi_determine_type(port);
@@ -1594,7 +1550,7 @@
priv->flags |= ASYNC_SPD_CUST;
priv->custom_divisor = 77;
priv->force_baud = 38400;
-} /* ftdi_USB_UIRT_setup */
+}
/* Setup for the HE-TIRA1 device, which requires hardwired
* baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */
@@ -1607,7 +1563,7 @@
priv->custom_divisor = 240;
priv->force_baud = 38400;
priv->force_rtscts = 1;
-} /* ftdi_HE_TIRA1_setup */
+}
/*
* Module parameter to control latency timer for NDI FTDI-based USB devices.
@@ -1700,31 +1656,10 @@
return 0;
}
-static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
-{
- struct urb *urb = port->read_urb;
- struct usb_serial *serial = port->serial;
- int result;
-
- usb_fill_bulk_urb(urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- urb->transfer_buffer,
- urb->transfer_buffer_length,
- ftdi_read_bulk_callback, port);
- result = usb_submit_urb(urb, mem_flags);
- if (result && result != -EPERM)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
- return result;
-}
-
static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
-{ /* ftdi_open */
+{
struct usb_device *dev = port->serial->dev;
struct ftdi_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
int result;
dbg("%s", __func__);
@@ -1746,20 +1681,13 @@
if (tty)
ftdi_set_termios(tty, port, tty->termios);
- /* Not throttled */
- spin_lock_irqsave(&port->lock, flags);
- port->throttled = 0;
- port->throttle_req = 0;
- spin_unlock_irqrestore(&port->lock, flags);
-
/* Start reading from the device */
- result = ftdi_submit_read_urb(port, GFP_KERNEL);
+ result = usb_serial_generic_open(tty, port);
if (!result)
kref_get(&priv->kref);
return result;
-} /* ftdi_open */
-
+}
static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
{
@@ -1789,22 +1717,16 @@
* usbserial:__serial_close only calls ftdi_close if the point is open
*
* This only gets called when it is the last close
- *
- *
*/
-
static void ftdi_close(struct usb_serial_port *port)
-{ /* ftdi_close */
+{
struct ftdi_private *priv = usb_get_serial_port_data(port);
dbg("%s", __func__);
- /* shutdown our bulk read */
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
kref_put(&priv->kref, ftdi_sio_priv_release);
-} /* ftdi_close */
-
-
+}
/* The SIO requires the first byte to have:
* B0 1
@@ -1813,211 +1735,39 @@
*
* The new devices do not require this byte
*/
-static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{ /* ftdi_write */
- struct ftdi_private *priv = usb_get_serial_port_data(port);
- struct urb *urb;
- unsigned char *buffer;
- int data_offset ; /* will be 1 for the SIO and 0 otherwise */
- int status;
- int transfer_size;
- unsigned long flags;
-
- dbg("%s port %d, %d bytes", __func__, port->number, count);
-
- if (count == 0) {
- dbg("write request of 0 bytes");
- return 0;
- }
- spin_lock_irqsave(&priv->tx_lock, flags);
- if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) {
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- dbg("%s - write limit hit", __func__);
- return 0;
- }
- priv->tx_outstanding_urbs++;
- spin_unlock_irqrestore(&priv->tx_lock, flags);
-
- data_offset = priv->write_offset;
- dbg("data_offset set to %d", data_offset);
-
- /* Determine total transfer size */
- transfer_size = count;
- if (data_offset > 0) {
- /* Original sio needs control bytes too... */
- transfer_size += (data_offset *
- ((count + (priv->max_packet_size - 1 - data_offset)) /
- (priv->max_packet_size - data_offset)));
- }
-
- buffer = kmalloc(transfer_size, GFP_ATOMIC);
- if (!buffer) {
- dev_err(&port->dev,
- "%s ran out of kernel memory for urb ...\n", __func__);
- count = -ENOMEM;
- goto error_no_buffer;
- }
-
- urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!urb) {
- dev_err(&port->dev, "%s - no more free urbs\n", __func__);
- count = -ENOMEM;
- goto error_no_urb;
- }
-
- /* Copy data */
- if (data_offset > 0) {
- /* Original sio requires control byte at start of
- each packet. */
- int user_pktsz = priv->max_packet_size - data_offset;
- int todo = count;
- unsigned char *first_byte = buffer;
- const unsigned char *current_position = buf;
-
- while (todo > 0) {
- if (user_pktsz > todo)
- user_pktsz = todo;
- /* Write the control byte at the front of the packet*/
- *first_byte = 1 | ((user_pktsz) << 2);
- /* Copy data for packet */
- memcpy(first_byte + data_offset,
- current_position, user_pktsz);
- first_byte += user_pktsz + data_offset;
- current_position += user_pktsz;
- todo -= user_pktsz;
- }
- } else {
- /* No control byte required. */
- /* Copy in the data to send */
- memcpy(buffer, buf, count);
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- transfer_size, buffer);
-
- /* fill the buffer and send it */
- usb_fill_bulk_urb(urb, port->serial->dev,
- usb_sndbulkpipe(port->serial->dev,
- port->bulk_out_endpointAddress),
- buffer, transfer_size,
- ftdi_write_bulk_callback, port);
-
- status = usb_submit_urb(urb, GFP_ATOMIC);
- if (status) {
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, status);
- count = status;
- goto error;
- } else {
- spin_lock_irqsave(&priv->tx_lock, flags);
- priv->tx_outstanding_bytes += count;
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- }
-
- /* we are done with this urb, so let the host driver
- * really free it when it is finished with it */
- usb_free_urb(urb);
-
- dbg("%s write returning: %d", __func__, count);
- return count;
-error:
- usb_free_urb(urb);
-error_no_urb:
- kfree(buffer);
-error_no_buffer:
- spin_lock_irqsave(&priv->tx_lock, flags);
- priv->tx_outstanding_urbs--;
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- return count;
-} /* ftdi_write */
-
-
-/* This function may get called when the device is closed */
-
-static void ftdi_write_bulk_callback(struct urb *urb)
+static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size)
{
- unsigned long flags;
- struct usb_serial_port *port = urb->context;
struct ftdi_private *priv;
- int data_offset; /* will be 1 for the SIO and 0 otherwise */
- unsigned long countback;
- int status = urb->status;
-
- /* free up the transfer buffer, as usb_free_urb() does not do this */
- kfree(urb->transfer_buffer);
-
- dbg("%s - port %d", __func__, port->number);
+ int count;
+ unsigned long flags;
priv = usb_get_serial_port_data(port);
- if (!priv) {
- dbg("%s - bad port private data pointer - exiting", __func__);
- return;
- }
- /* account for transferred data */
- countback = urb->transfer_buffer_length;
- data_offset = priv->write_offset;
- if (data_offset > 0) {
- /* Subtract the control bytes */
- countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size));
- }
- spin_lock_irqsave(&priv->tx_lock, flags);
- --priv->tx_outstanding_urbs;
- priv->tx_outstanding_bytes -= countback;
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- if (status) {
- dbg("nonzero write bulk status received: %d", status);
- }
+ if (priv->chip_type == SIO) {
+ unsigned char *buffer = dest;
+ int i, len, c;
- usb_serial_port_softint(port);
-} /* ftdi_write_bulk_callback */
-
-
-static int ftdi_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct ftdi_private *priv = usb_get_serial_port_data(port);
- int room;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->tx_lock, flags);
- if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) {
- /*
- * We really can take anything the user throws at us
- * but let's pick a nice big number to tell the tty
- * layer that we have lots of free space
- */
- room = 2048;
+ count = 0;
+ spin_lock_irqsave(&port->lock, flags);
+ for (i = 0; i < size - 1; i += priv->max_packet_size) {
+ len = min_t(int, size - i, priv->max_packet_size) - 1;
+ c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
+ if (!c)
+ break;
+ buffer[i] = (c << 2) + 1;
+ count += c + 1;
+ }
+ spin_unlock_irqrestore(&port->lock, flags);
} else {
- room = 0;
+ count = kfifo_out_locked(&port->write_fifo, dest, size,
+ &port->lock);
}
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- return room;
+
+ return count;
}
-static int ftdi_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct ftdi_private *priv = usb_get_serial_port_data(port);
- int buffered;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->tx_lock, flags);
- buffered = (int)priv->tx_outstanding_bytes;
- spin_unlock_irqrestore(&priv->tx_lock, flags);
- if (buffered < 0) {
- dev_err(&port->dev, "%s outstanding tx bytes is negative!\n",
- __func__);
- buffered = 0;
- }
- return buffered;
-}
+#define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
static int ftdi_process_packet(struct tty_struct *tty,
struct usb_serial_port *port, struct ftdi_private *priv,
@@ -2045,28 +1795,21 @@
priv->prev_status = status;
}
- /*
- * Although the device uses a bitmask and hence can have multiple
- * errors on a packet - the order here sets the priority the error is
- * returned to the tty layer.
- */
flag = TTY_NORMAL;
- if (packet[1] & FTDI_RS_OE) {
- flag = TTY_OVERRUN;
- dbg("OVERRRUN error");
- }
- if (packet[1] & FTDI_RS_BI) {
- flag = TTY_BREAK;
- dbg("BREAK received");
- usb_serial_handle_break(port);
- }
- if (packet[1] & FTDI_RS_PE) {
- flag = TTY_PARITY;
- dbg("PARITY error");
- }
- if (packet[1] & FTDI_RS_FE) {
- flag = TTY_FRAME;
- dbg("FRAMING error");
+ if (packet[1] & FTDI_RS_ERR_MASK) {
+ /* Break takes precedence over parity, which takes precedence
+ * over framing errors */
+ if (packet[1] & FTDI_RS_BI) {
+ flag = TTY_BREAK;
+ usb_serial_handle_break(port);
+ } else if (packet[1] & FTDI_RS_PE) {
+ flag = TTY_PARITY;
+ } else if (packet[1] & FTDI_RS_FE) {
+ flag = TTY_FRAME;
+ }
+ /* Overrun is special, not associated with a char */
+ if (packet[1] & FTDI_RS_OE)
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
}
len -= 2;
@@ -2074,20 +1817,21 @@
return 0; /* status only */
ch = packet + 2;
- if (!(port->console && port->sysrq) && flag == TTY_NORMAL)
- tty_insert_flip_string(tty, ch, len);
- else {
+ if (port->port.console && port->sysrq) {
for (i = 0; i < len; i++, ch++) {
if (!usb_serial_handle_sysrq_char(tty, port, *ch))
tty_insert_flip_char(tty, *ch, flag);
}
+ } else {
+ tty_insert_flip_string_fixed_flag(tty, ch, flag, len);
}
+
return len;
}
-static void ftdi_process_read(struct usb_serial_port *port)
+static void ftdi_process_read_urb(struct urb *urb)
{
- struct urb *urb = port->read_urb;
+ struct usb_serial_port *port = urb->context;
struct tty_struct *tty;
struct ftdi_private *priv = usb_get_serial_port_data(port);
char *data = (char *)urb->transfer_buffer;
@@ -2109,32 +1853,6 @@
tty_kref_put(tty);
}
-static void ftdi_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (urb->status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, urb->status);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, urb->transfer_buffer);
- ftdi_process_read(port);
-
- spin_lock_irqsave(&port->lock, flags);
- port->throttled = port->throttle_req;
- if (!port->throttled) {
- spin_unlock_irqrestore(&port->lock, flags);
- ftdi_submit_read_urb(port, GFP_ATOMIC);
- } else
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
@@ -2165,15 +1883,13 @@
}
-
/* old_termios contains the original termios settings and tty->termios contains
* the new setting to be used
* WARNING: set_termios calls this with old_termios in kernel space
*/
-
static void ftdi_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
-{ /* ftdi_termios */
+{
struct usb_device *dev = port->serial->dev;
struct ftdi_private *priv = usb_get_serial_port_data(port);
struct ktermios *termios = tty->termios;
@@ -2401,7 +2117,6 @@
return update_mctrl(port, set, clear);
}
-
static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
@@ -2470,35 +2185,6 @@
return -ENOIOCTLCMD;
}
-static void ftdi_throttle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&port->lock, flags);
- port->throttle_req = 1;
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-void ftdi_unthrottle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- int was_throttled;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&port->lock, flags);
- was_throttled = port->throttled;
- port->throttled = port->throttle_req = 0;
- spin_unlock_irqrestore(&port->lock, flags);
-
- if (was_throttled)
- ftdi_submit_read_urb(port, GFP_KERNEL);
-}
-
static int __init ftdi_init(void)
{
int retval;
@@ -2529,15 +2215,12 @@
return retval;
}
-
static void __exit ftdi_exit(void)
{
-
dbg("%s", __func__);
usb_deregister(&ftdi_driver);
usb_serial_deregister(&ftdi_sio_device);
-
}
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index ff9bf80..213fe3d 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -23,14 +23,16 @@
*/
/* Commands */
-#define FTDI_SIO_RESET 0 /* Reset the port */
-#define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */
-#define FTDI_SIO_SET_FLOW_CTRL 2 /* Set flow control register */
-#define FTDI_SIO_SET_BAUD_RATE 3 /* Set baud rate */
-#define FTDI_SIO_SET_DATA 4 /* Set the data characteristics of the port */
-#define FTDI_SIO_GET_MODEM_STATUS 5 /* Retrieve current value of modem status register */
-#define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */
-#define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */
+#define FTDI_SIO_RESET 0 /* Reset the port */
+#define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */
+#define FTDI_SIO_SET_FLOW_CTRL 2 /* Set flow control register */
+#define FTDI_SIO_SET_BAUD_RATE 3 /* Set baud rate */
+#define FTDI_SIO_SET_DATA 4 /* Set the data characteristics of
+ the port */
+#define FTDI_SIO_GET_MODEM_STATUS 5 /* Retrieve current value of modem
+ status register */
+#define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */
+#define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */
#define FTDI_SIO_SET_LATENCY_TIMER 9 /* Set the latency timer */
#define FTDI_SIO_GET_LATENCY_TIMER 10 /* Get the latency timer */
@@ -52,7 +54,7 @@
*/
/* Port Identifier Table */
-#define PIT_DEFAULT 0 /* SIOA */
+#define PIT_DEFAULT 0 /* SIOA */
#define PIT_SIOA 1 /* SIOA */
/* The device this driver is tested with one has only one port */
#define PIT_SIOB 2 /* SIOB */
@@ -103,20 +105,21 @@
* wLength: 0
* Data: None
* The BaudDivisor values are calculated as follows:
- * - BaseClock is either 12000000 or 48000000 depending on the device. FIXME: I wish
- * I knew how to detect old chips to select proper base clock!
+ * - BaseClock is either 12000000 or 48000000 depending on the device.
+ * FIXME: I wish I knew how to detect old chips to select proper base clock!
* - BaudDivisor is a fixed point number encoded in a funny way.
* (--WRONG WAY OF THINKING--)
* BaudDivisor is a fixed point number encoded with following bit weighs:
* (-2)(-1)(13..0). It is a radical with a denominator of 4, so values
* end with 0.0 (00...), 0.25 (10...), 0.5 (01...), and 0.75 (11...).
* (--THE REALITY--)
- * The both-bits-set has quite different meaning from 0.75 - the chip designers
- * have decided it to mean 0.125 instead of 0.75.
+ * The both-bits-set has quite different meaning from 0.75 - the chip
+ * designers have decided it to mean 0.125 instead of 0.75.
* This info looked up in FTDI application note "FT8U232 DEVICES \ Data Rates
* and Flow Control Consideration for USB to RS232".
* - BaudDivisor = (BaseClock / 16) / BaudRate, where the (=) operation should
- * automagically re-encode the resulting value to take fractions into consideration.
+ * automagically re-encode the resulting value to take fractions into
+ * consideration.
* As all values are integers, some bit twiddling is in order:
* BaudDivisor = (BaseClock / 16 / BaudRate) |
* (((BaseClock / 2 / BaudRate) & 4) ? 0x4000 // 0.5
@@ -146,7 +149,7 @@
* not supported by the FT8U232AM).
*/
-typedef enum {
+enum ftdi_chip_type {
SIO = 1,
FT8U232AM = 2,
FT232BM = 3,
@@ -154,37 +157,36 @@
FT232RL = 5,
FT2232H = 6,
FT4232H = 7
-} ftdi_chip_type_t;
+};
-typedef enum {
- ftdi_sio_b300 = 0,
- ftdi_sio_b600 = 1,
- ftdi_sio_b1200 = 2,
- ftdi_sio_b2400 = 3,
- ftdi_sio_b4800 = 4,
- ftdi_sio_b9600 = 5,
- ftdi_sio_b19200 = 6,
- ftdi_sio_b38400 = 7,
- ftdi_sio_b57600 = 8,
- ftdi_sio_b115200 = 9
-} FTDI_SIO_baudrate_t;
+enum ftdi_sio_baudrate {
+ ftdi_sio_b300 = 0,
+ ftdi_sio_b600 = 1,
+ ftdi_sio_b1200 = 2,
+ ftdi_sio_b2400 = 3,
+ ftdi_sio_b4800 = 4,
+ ftdi_sio_b9600 = 5,
+ ftdi_sio_b19200 = 6,
+ ftdi_sio_b38400 = 7,
+ ftdi_sio_b57600 = 8,
+ ftdi_sio_b115200 = 9
+};
/*
- * The ftdi_8U232AM_xxMHz_byyy constants have been removed. The encoded divisor values
- * are calculated internally.
+ * The ftdi_8U232AM_xxMHz_byyy constants have been removed. The encoded divisor
+ * values are calculated internally.
*/
-
-#define FTDI_SIO_SET_DATA_REQUEST FTDI_SIO_SET_DATA
-#define FTDI_SIO_SET_DATA_REQUEST_TYPE 0x40
-#define FTDI_SIO_SET_DATA_PARITY_NONE (0x0 << 8)
-#define FTDI_SIO_SET_DATA_PARITY_ODD (0x1 << 8)
-#define FTDI_SIO_SET_DATA_PARITY_EVEN (0x2 << 8)
-#define FTDI_SIO_SET_DATA_PARITY_MARK (0x3 << 8)
-#define FTDI_SIO_SET_DATA_PARITY_SPACE (0x4 << 8)
-#define FTDI_SIO_SET_DATA_STOP_BITS_1 (0x0 << 11)
-#define FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11)
-#define FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11)
-#define FTDI_SIO_SET_BREAK (0x1 << 14)
+#define FTDI_SIO_SET_DATA_REQUEST FTDI_SIO_SET_DATA
+#define FTDI_SIO_SET_DATA_REQUEST_TYPE 0x40
+#define FTDI_SIO_SET_DATA_PARITY_NONE (0x0 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_ODD (0x1 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_EVEN (0x2 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_MARK (0x3 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_SPACE (0x4 << 8)
+#define FTDI_SIO_SET_DATA_STOP_BITS_1 (0x0 << 11)
+#define FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11)
+#define FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11)
+#define FTDI_SIO_SET_BREAK (0x1 << 14)
/* FTDI_SIO_SET_DATA */
/*
@@ -287,8 +289,8 @@
*
* A value of zero in the hIndex field disables handshaking
*
- * If Xon/Xoff handshaking is specified, the hValue field should contain the XOFF character
- * and the lValue field contains the XON character.
+ * If Xon/Xoff handshaking is specified, the hValue field should contain the
+ * XOFF character and the lValue field contains the XON character.
*/
/*
@@ -373,7 +375,10 @@
/* FTDI_SIO_SET_ERROR_CHAR */
-/* Set the parity error replacement character for the specified communications port */
+/*
+ * Set the parity error replacement character for the specified communications
+ * port
+ */
/*
* BmRequestType: 0100 0000b
@@ -496,9 +501,10 @@
*
* IN Endpoint
*
- * The device reserves the first two bytes of data on this endpoint to contain the current
- * values of the modem and line status registers. In the absence of data, the device
- * generates a message consisting of these two status bytes every 40 ms
+ * The device reserves the first two bytes of data on this endpoint to contain
+ * the current values of the modem and line status registers. In the absence of
+ * data, the device generates a message consisting of these two status bytes
+ * every 40 ms
*
* Byte 0: Modem Status
*
@@ -530,21 +536,21 @@
#define FTDI_RS0_RI (1 << 6)
#define FTDI_RS0_RLSD (1 << 7)
-#define FTDI_RS_DR 1
-#define FTDI_RS_OE (1<<1)
-#define FTDI_RS_PE (1<<2)
-#define FTDI_RS_FE (1<<3)
-#define FTDI_RS_BI (1<<4)
-#define FTDI_RS_THRE (1<<5)
-#define FTDI_RS_TEMT (1<<6)
-#define FTDI_RS_FIFO (1<<7)
+#define FTDI_RS_DR 1
+#define FTDI_RS_OE (1<<1)
+#define FTDI_RS_PE (1<<2)
+#define FTDI_RS_FE (1<<3)
+#define FTDI_RS_BI (1<<4)
+#define FTDI_RS_THRE (1<<5)
+#define FTDI_RS_TEMT (1<<6)
+#define FTDI_RS_FIFO (1<<7)
/*
* OUT Endpoint
*
- * This device reserves the first bytes of data on this endpoint contain the length
- * and port identifier of the message. For the FTDI USB Serial converter the port
- * identifier is always 1.
+ * This device reserves the first bytes of data on this endpoint contain the
+ * length and port identifier of the message. For the FTDI USB Serial converter
+ * the port identifier is always 1.
*
* Byte 0: Line Status
*
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 75482cb..94d86c3 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -275,8 +275,8 @@
/*
* Hameg HO820 and HO870 interface (using VID 0x0403)
*/
-#define HAMEG_HO820_PID 0xed74
-#define HAMEG_HO870_PID 0xed71
+#define HAMEG_HO820_PID 0xed74
+#define HAMEG_HO870_PID 0xed71
/*
* MaxStream devices www.maxstream.net
@@ -289,14 +289,14 @@
* and Mike Studer (K6EEP) <k6eep@hamsoftware.org>.
* Ian Abbott <abbotti@mev.co.uk> added a few more from the driver INF file.
*/
-#define FTDI_MHAM_KW_PID 0xEEE8 /* USB-KW interface */
-#define FTDI_MHAM_YS_PID 0xEEE9 /* USB-YS interface */
-#define FTDI_MHAM_Y6_PID 0xEEEA /* USB-Y6 interface */
-#define FTDI_MHAM_Y8_PID 0xEEEB /* USB-Y8 interface */
-#define FTDI_MHAM_IC_PID 0xEEEC /* USB-IC interface */
-#define FTDI_MHAM_DB9_PID 0xEEED /* USB-DB9 interface */
-#define FTDI_MHAM_RS232_PID 0xEEEE /* USB-RS232 interface */
-#define FTDI_MHAM_Y9_PID 0xEEEF /* USB-Y9 interface */
+#define FTDI_MHAM_KW_PID 0xEEE8 /* USB-KW interface */
+#define FTDI_MHAM_YS_PID 0xEEE9 /* USB-YS interface */
+#define FTDI_MHAM_Y6_PID 0xEEEA /* USB-Y6 interface */
+#define FTDI_MHAM_Y8_PID 0xEEEB /* USB-Y8 interface */
+#define FTDI_MHAM_IC_PID 0xEEEC /* USB-IC interface */
+#define FTDI_MHAM_DB9_PID 0xEEED /* USB-DB9 interface */
+#define FTDI_MHAM_RS232_PID 0xEEEE /* USB-RS232 interface */
+#define FTDI_MHAM_Y9_PID 0xEEEF /* USB-Y9 interface */
/* Domintell products http://www.domintell.com */
#define FTDI_DOMINTELL_DGQG_PID 0xEF50 /* Master */
@@ -483,9 +483,9 @@
* Blackfin gnICE JTAG
* http://docs.blackfin.uclinux.org/doku.php?id=hw:jtag:gnice
*/
-#define ADI_VID 0x0456
-#define ADI_GNICE_PID 0xF000
-#define ADI_GNICEPLUS_PID 0xF001
+#define ADI_VID 0x0456
+#define ADI_GNICE_PID 0xF000
+#define ADI_GNICEPLUS_PID 0xF001
/*
* RATOC REX-USB60F
@@ -611,13 +611,13 @@
#define SEALEVEL_2802_7_PID 0X2872 /* SeaLINK+8/485 (2802) Port 7 */
#define SEALEVEL_2802_8_PID 0X2882 /* SeaLINK+8/485 (2802) Port 8 */
#define SEALEVEL_2803_1_PID 0X2813 /* SeaLINK+8 (2803) Port 1 */
-#define SEALEVEL_2803_2_PID 0X2823 /* SeaLINK+8 (2803) Port 2 */
-#define SEALEVEL_2803_3_PID 0X2833 /* SeaLINK+8 (2803) Port 3 */
-#define SEALEVEL_2803_4_PID 0X2843 /* SeaLINK+8 (2803) Port 4 */
-#define SEALEVEL_2803_5_PID 0X2853 /* SeaLINK+8 (2803) Port 5 */
-#define SEALEVEL_2803_6_PID 0X2863 /* SeaLINK+8 (2803) Port 6 */
-#define SEALEVEL_2803_7_PID 0X2873 /* SeaLINK+8 (2803) Port 7 */
-#define SEALEVEL_2803_8_PID 0X2883 /* SeaLINK+8 (2803) Port 8 */
+#define SEALEVEL_2803_2_PID 0X2823 /* SeaLINK+8 (2803) Port 2 */
+#define SEALEVEL_2803_3_PID 0X2833 /* SeaLINK+8 (2803) Port 3 */
+#define SEALEVEL_2803_4_PID 0X2843 /* SeaLINK+8 (2803) Port 4 */
+#define SEALEVEL_2803_5_PID 0X2853 /* SeaLINK+8 (2803) Port 5 */
+#define SEALEVEL_2803_6_PID 0X2863 /* SeaLINK+8 (2803) Port 6 */
+#define SEALEVEL_2803_7_PID 0X2873 /* SeaLINK+8 (2803) Port 7 */
+#define SEALEVEL_2803_8_PID 0X2883 /* SeaLINK+8 (2803) Port 8 */
/*
* JETI SPECTROMETER SPECBOS 1201
@@ -1013,7 +1013,7 @@
*/
#define EVOLUTION_VID 0xDEEE /* Vendor ID */
#define EVOLUTION_ER1_PID 0x0300 /* ER1 Control Module */
-#define EVO_8U232AM_PID 0x02FF /* Evolution robotics RCM2 (FT232AM)*/
+#define EVO_8U232AM_PID 0x02FF /* Evolution robotics RCM2 (FT232AM)*/
#define EVO_HYBRID_PID 0x0302 /* Evolution robotics RCM4 PID (FT232BM)*/
#define EVO_RCM4_PID 0x0303 /* Evolution robotics RCM4 PID */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index f804acb..a817ced 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -1,6 +1,7 @@
/*
* USB Serial Converter Generic functions
*
+ * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com)
* Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
*
* This program is free software; you can redistribute it and/or
@@ -12,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/sysrq.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
@@ -117,7 +119,6 @@
int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port)
{
- struct usb_serial *serial = port->serial;
int result = 0;
unsigned long flags;
@@ -130,23 +131,8 @@
spin_unlock_irqrestore(&port->lock, flags);
/* if we have a bulk endpoint, start reading from it */
- if (port->bulk_in_size) {
- /* Start reading from the device */
- usb_fill_bulk_urb(port->read_urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ((serial->type->read_bulk_callback) ?
- serial->type->read_bulk_callback :
- usb_serial_generic_read_bulk_callback),
- port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- }
+ if (port->bulk_in_size)
+ result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL);
return result;
}
@@ -155,13 +141,22 @@
static void generic_cleanup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
+ unsigned long flags;
+ int i;
dbg("%s - port %d", __func__, port->number);
if (serial->dev) {
/* shutdown any bulk transfers that might be going on */
- if (port->bulk_out_size)
+ if (port->bulk_out_size) {
usb_kill_urb(port->write_urb);
+ for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i)
+ usb_kill_urb(port->write_urbs[i]);
+
+ spin_lock_irqsave(&port->lock, flags);
+ kfifo_reset_out(&port->write_fifo);
+ spin_unlock_irqrestore(&port->lock, flags);
+ }
if (port->bulk_in_size)
usb_kill_urb(port->read_urb);
}
@@ -172,146 +167,68 @@
dbg("%s - port %d", __func__, port->number);
generic_cleanup(port);
}
+EXPORT_SYMBOL_GPL(usb_serial_generic_close);
-static int usb_serial_multi_urb_write(struct tty_struct *tty,
- struct usb_serial_port *port, const unsigned char *buf, int count)
+int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size)
{
- unsigned long flags;
- struct urb *urb;
- unsigned char *buffer;
- int status;
- int towrite;
- int bwrite = 0;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (count == 0)
- dbg("%s - write request of 0 bytes", __func__);
-
- while (count > 0) {
- towrite = (count > port->bulk_out_size) ?
- port->bulk_out_size : count;
- spin_lock_irqsave(&port->lock, flags);
- if (port->urbs_in_flight >
- port->serial->type->max_in_flight_urbs) {
- spin_unlock_irqrestore(&port->lock, flags);
- dbg("%s - write limit hit", __func__);
- return bwrite;
- }
- port->tx_bytes_flight += towrite;
- port->urbs_in_flight++;
- spin_unlock_irqrestore(&port->lock, flags);
-
- buffer = kmalloc(towrite, GFP_ATOMIC);
- if (!buffer) {
- dev_err(&port->dev,
- "%s ran out of kernel memory for urb ...\n", __func__);
- goto error_no_buffer;
- }
-
- urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!urb) {
- dev_err(&port->dev, "%s - no more free urbs\n",
- __func__);
- goto error_no_urb;
- }
-
- /* Copy data */
- memcpy(buffer, buf + bwrite, towrite);
- usb_serial_debug_data(debug, &port->dev, __func__,
- towrite, buffer);
- /* fill the buffer and send it */
- usb_fill_bulk_urb(urb, port->serial->dev,
- usb_sndbulkpipe(port->serial->dev,
- port->bulk_out_endpointAddress),
- buffer, towrite,
- usb_serial_generic_write_bulk_callback, port);
-
- status = usb_submit_urb(urb, GFP_ATOMIC);
- if (status) {
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, status);
- goto error;
- }
-
- /* This urb is the responsibility of the host driver now */
- usb_free_urb(urb);
- dbg("%s write: %d", __func__, towrite);
- count -= towrite;
- bwrite += towrite;
- }
- return bwrite;
-
-error:
- usb_free_urb(urb);
-error_no_urb:
- kfree(buffer);
-error_no_buffer:
- spin_lock_irqsave(&port->lock, flags);
- port->urbs_in_flight--;
- port->tx_bytes_flight -= towrite;
- spin_unlock_irqrestore(&port->lock, flags);
- return bwrite;
+ return kfifo_out_locked(&port->write_fifo, dest, size, &port->lock);
}
/**
* usb_serial_generic_write_start - kick off an URB write
* @port: Pointer to the &struct usb_serial_port data
*
- * Returns the number of bytes queued on success. This will be zero if there
- * was nothing to send. Otherwise, it returns a negative errno value
+ * Returns zero on success, or a negative errno value
*/
static int usb_serial_generic_write_start(struct usb_serial_port *port)
{
- struct usb_serial *serial = port->serial;
- unsigned char *data;
- int result;
- int count;
+ struct urb *urb;
+ int count, result;
unsigned long flags;
- bool start_io;
+ int i;
- /* Atomically determine whether we can and need to start a USB
- * operation. */
+ if (test_and_set_bit_lock(USB_SERIAL_WRITE_BUSY, &port->flags))
+ return 0;
+retry:
spin_lock_irqsave(&port->lock, flags);
- if (port->write_urb_busy)
- start_io = false;
- else {
- start_io = (kfifo_len(&port->write_fifo) != 0);
- port->write_urb_busy = start_io;
+ if (!port->write_urbs_free || !kfifo_len(&port->write_fifo)) {
+ clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags);
+ spin_unlock_irqrestore(&port->lock, flags);
+ return 0;
}
+ i = (int)find_first_bit(&port->write_urbs_free,
+ ARRAY_SIZE(port->write_urbs));
spin_unlock_irqrestore(&port->lock, flags);
- if (!start_io)
- return 0;
-
- data = port->write_urb->transfer_buffer;
- count = kfifo_out_locked(&port->write_fifo, data, port->bulk_out_size, &port->lock);
- usb_serial_debug_data(debug, &port->dev, __func__, count, data);
-
- /* set up our urb */
- usb_fill_bulk_urb(port->write_urb, serial->dev,
- usb_sndbulkpipe(serial->dev,
- port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer, count,
- ((serial->type->write_bulk_callback) ?
- serial->type->write_bulk_callback :
- usb_serial_generic_write_bulk_callback),
- port);
-
- /* send the data out the bulk port */
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+ urb = port->write_urbs[i];
+ count = port->serial->type->prepare_write_buffer(port,
+ urb->transfer_buffer,
+ port->bulk_out_size);
+ urb->transfer_buffer_length = count;
+ usb_serial_debug_data(debug, &port->dev, __func__, count,
+ urb->transfer_buffer);
+ result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
+ dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, result);
- /* don't have to grab the lock here, as we will
- retry if != 0 */
- port->write_urb_busy = 0;
- } else
- result = count;
+ clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags);
+ return result;
+ }
+ clear_bit(i, &port->write_urbs_free);
- return result;
+ spin_lock_irqsave(&port->lock, flags);
+ port->tx_bytes += count;
+ spin_unlock_irqrestore(&port->lock, flags);
+
+ /* Try sending off another urb, unless in irq context (in which case
+ * there will be no free urb). */
+ if (!in_irq())
+ goto retry;
+
+ clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags);
+
+ return 0;
}
/**
@@ -328,7 +245,6 @@
int usb_serial_generic_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count)
{
- struct usb_serial *serial = port->serial;
int result;
dbg("%s - port %d", __func__, port->number);
@@ -337,31 +253,23 @@
if (!port->bulk_out_size)
return -ENODEV;
- if (count == 0) {
- dbg("%s - write request of 0 bytes", __func__);
+ if (!count)
return 0;
- }
-
- if (serial->type->max_in_flight_urbs)
- return usb_serial_multi_urb_write(tty, port,
- buf, count);
count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock);
result = usb_serial_generic_write_start(port);
+ if (result)
+ return result;
- if (result >= 0)
- result = count;
-
- return result;
+ return count;
}
EXPORT_SYMBOL_GPL(usb_serial_generic_write);
int usb_serial_generic_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct usb_serial *serial = port->serial;
unsigned long flags;
- int room = 0;
+ int room;
dbg("%s - port %d", __func__, port->number);
@@ -369,14 +277,7 @@
return 0;
spin_lock_irqsave(&port->lock, flags);
- if (serial->type->max_in_flight_urbs) {
- if (port->urbs_in_flight < serial->type->max_in_flight_urbs)
- room = port->bulk_out_size *
- (serial->type->max_in_flight_urbs -
- port->urbs_in_flight);
- } else {
- room = kfifo_avail(&port->write_fifo);
- }
+ room = kfifo_avail(&port->write_fifo);
spin_unlock_irqrestore(&port->lock, flags);
dbg("%s - returns %d", __func__, room);
@@ -386,7 +287,6 @@
int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct usb_serial *serial = port->serial;
unsigned long flags;
int chars;
@@ -396,61 +296,47 @@
return 0;
spin_lock_irqsave(&port->lock, flags);
- if (serial->type->max_in_flight_urbs)
- chars = port->tx_bytes_flight;
- else
- chars = kfifo_len(&port->write_fifo);
+ chars = kfifo_len(&port->write_fifo) + port->tx_bytes;
spin_unlock_irqrestore(&port->lock, flags);
dbg("%s - returns %d", __func__, chars);
return chars;
}
-
-void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port,
- gfp_t mem_flags)
+int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
+ gfp_t mem_flags)
{
- struct urb *urb = port->read_urb;
- struct usb_serial *serial = port->serial;
int result;
- /* Continue reading from device */
- usb_fill_bulk_urb(urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- urb->transfer_buffer,
- urb->transfer_buffer_length,
- ((serial->type->read_bulk_callback) ?
- serial->type->read_bulk_callback :
- usb_serial_generic_read_bulk_callback), port);
-
- result = usb_submit_urb(urb, mem_flags);
+ result = usb_submit_urb(port->read_urb, mem_flags);
if (result && result != -EPERM) {
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
+ dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, result);
}
+ return result;
}
-EXPORT_SYMBOL_GPL(usb_serial_generic_resubmit_read_urb);
+EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urb);
-/* Push data to tty layer and resubmit the bulk read URB */
-static void flush_and_resubmit_read_urb(struct usb_serial_port *port)
+void usb_serial_generic_process_read_urb(struct urb *urb)
{
- struct urb *urb = port->read_urb;
- struct tty_struct *tty = tty_port_tty_get(&port->port);
+ struct usb_serial_port *port = urb->context;
+ struct tty_struct *tty;
char *ch = (char *)urb->transfer_buffer;
int i;
+ if (!urb->actual_length)
+ return;
+
+ tty = tty_port_tty_get(&port->port);
if (!tty)
- goto done;
+ return;
/* The per character mucking around with sysrq path it too slow for
stuff like 3G modems, so shortcircuit it in the 99.9999999% of cases
where the USB serial is not a console anyway */
- if (!port->console || !port->sysrq)
+ if (!port->port.console || !port->sysrq)
tty_insert_flip_string(tty, ch, urb->actual_length);
else {
- /* Push data to tty */
for (i = 0; i < urb->actual_length; i++, ch++) {
if (!usb_serial_handle_sysrq_char(tty, port, *ch))
tty_insert_flip_char(tty, *ch, TTY_NORMAL);
@@ -458,9 +344,8 @@
}
tty_flip_buffer_push(tty);
tty_kref_put(tty);
-done:
- usb_serial_generic_resubmit_read_urb(port, GFP_ATOMIC);
}
+EXPORT_SYMBOL_GPL(usb_serial_generic_process_read_urb);
void usb_serial_generic_read_bulk_callback(struct urb *urb)
{
@@ -479,13 +364,14 @@
usb_serial_debug_data(debug, &port->dev, __func__,
urb->actual_length, data);
+ port->serial->type->process_read_urb(urb);
/* Throttle the device if requested by tty */
spin_lock_irqsave(&port->lock, flags);
port->throttled = port->throttle_req;
if (!port->throttled) {
spin_unlock_irqrestore(&port->lock, flags);
- flush_and_resubmit_read_urb(port);
+ usb_serial_generic_submit_read_urb(port, GFP_ATOMIC);
} else
spin_unlock_irqrestore(&port->lock, flags);
}
@@ -496,30 +382,29 @@
unsigned long flags;
struct usb_serial_port *port = urb->context;
int status = urb->status;
+ int i;
dbg("%s - port %d", __func__, port->number);
- if (port->serial->type->max_in_flight_urbs) {
- kfree(urb->transfer_buffer);
+ for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i)
+ if (port->write_urbs[i] == urb)
+ break;
+
+ spin_lock_irqsave(&port->lock, flags);
+ port->tx_bytes -= urb->transfer_buffer_length;
+ set_bit(i, &port->write_urbs_free);
+ spin_unlock_irqrestore(&port->lock, flags);
+
+ if (status) {
+ dbg("%s - non-zero urb status: %d", __func__, status);
spin_lock_irqsave(&port->lock, flags);
- --port->urbs_in_flight;
- port->tx_bytes_flight -= urb->transfer_buffer_length;
- if (port->urbs_in_flight < 0)
- port->urbs_in_flight = 0;
+ kfifo_reset_out(&port->write_fifo);
spin_unlock_irqrestore(&port->lock, flags);
} else {
- port->write_urb_busy = 0;
-
- if (status)
- kfifo_reset_out(&port->write_fifo);
- else
- usb_serial_generic_write_start(port);
+ usb_serial_generic_write_start(port);
}
- if (status)
- dbg("%s - non-zero urb status: %d", __func__, status);
-
usb_serial_port_softint(port);
}
EXPORT_SYMBOL_GPL(usb_serial_generic_write_bulk_callback);
@@ -537,31 +422,31 @@
port->throttle_req = 1;
spin_unlock_irqrestore(&port->lock, flags);
}
+EXPORT_SYMBOL_GPL(usb_serial_generic_throttle);
void usb_serial_generic_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
int was_throttled;
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
/* Clear the throttle flags */
- spin_lock_irqsave(&port->lock, flags);
+ spin_lock_irq(&port->lock);
was_throttled = port->throttled;
port->throttled = port->throttle_req = 0;
- spin_unlock_irqrestore(&port->lock, flags);
+ spin_unlock_irq(&port->lock);
- if (was_throttled) {
- /* Resume reading from device */
- flush_and_resubmit_read_urb(port);
- }
+ if (was_throttled)
+ usb_serial_generic_submit_read_urb(port, GFP_KERNEL);
}
+EXPORT_SYMBOL_GPL(usb_serial_generic_unthrottle);
+#ifdef CONFIG_MAGIC_SYSRQ
int usb_serial_handle_sysrq_char(struct tty_struct *tty,
struct usb_serial_port *port, unsigned int ch)
{
- if (port->sysrq && port->console) {
+ if (port->sysrq && port->port.console) {
if (ch && time_before(jiffies, port->sysrq)) {
handle_sysrq(ch, tty);
port->sysrq = 0;
@@ -571,6 +456,13 @@
}
return 0;
}
+#else
+int usb_serial_handle_sysrq_char(struct tty_struct *tty,
+ struct usb_serial_port *port, unsigned int ch)
+{
+ return 0;
+}
+#endif
EXPORT_SYMBOL_GPL(usb_serial_handle_sysrq_char);
int usb_serial_handle_break(struct usb_serial_port *port)
@@ -600,7 +492,7 @@
c++;
}
- if (port->write_urb) {
+ if (port->bulk_out_size) {
r = usb_serial_generic_write_start(port);
if (r < 0)
c++;
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 3ef8df0..76e6fb3 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -3020,7 +3020,7 @@
/* set up our port private structures */
for (i = 0; i < serial->num_ports; ++i) {
- edge_port = kmalloc(sizeof(struct edgeport_port), GFP_KERNEL);
+ edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL);
if (edge_port == NULL) {
dev_err(&serial->dev->dev, "%s - Out of memory\n",
__func__);
@@ -3033,7 +3033,6 @@
kfree(edge_serial);
return -ENOMEM;
}
- memset(edge_port, 0, sizeof(struct edgeport_port));
spin_lock_init(&edge_port->ep_lock);
edge_port->port = serial->port[i];
usb_set_serial_port_data(serial->port[i], edge_port);
diff --git a/drivers/usb/serial/io_edgeport.h b/drivers/usb/serial/io_edgeport.h
index cb201c1..dced7ec 100644
--- a/drivers/usb/serial/io_edgeport.h
+++ b/drivers/usb/serial/io_edgeport.h
@@ -34,15 +34,15 @@
-/* The following table is used to map the USBx port number to
+/* The following table is used to map the USBx port number to
* the device serial number (or physical USB path), */
#define MAX_EDGEPORTS 64
struct comMapper {
char SerialNumber[MAX_SERIALNUMBER_LEN+1]; /* Serial number/usb path */
- int numPorts; /* Number of ports */
- int Original[MAX_RS232_PORTS]; /* Port numbers set by IOCTL */
- int Port[MAX_RS232_PORTS]; /* Actual used port numbers */
+ int numPorts; /* Number of ports */
+ int Original[MAX_RS232_PORTS]; /* Port numbers set by IOCTL */
+ int Port[MAX_RS232_PORTS]; /* Actual used port numbers */
};
@@ -51,7 +51,7 @@
/* /proc/edgeport Interface
* This interface uses read/write/lseek interface to talk to the edgeport driver
* the following read functions are supported: */
-#define PROC_GET_MAPPING_TO_PATH 1
+#define PROC_GET_MAPPING_TO_PATH 1
#define PROC_GET_COM_ENTRY 2
#define PROC_GET_EDGE_MANUF_DESCRIPTOR 3
#define PROC_GET_BOOT_DESCRIPTOR 4
@@ -64,7 +64,7 @@
/* the following write functions are supported: */
-#define PROC_SET_COM_MAPPING 1
+#define PROC_SET_COM_MAPPING 1
#define PROC_SET_COM_ENTRY 2
@@ -97,8 +97,8 @@
__u8 BoardRev; /* PCB revision level (chg only if s/w visible) */
__u8 BootMajorVersion; /* Boot Firmware version: xx. */
- __u8 BootMinorVersion; /* yy. */
- __le16 BootBuildNumber; /* zzzz (LE format) */
+ __u8 BootMinorVersion; /* yy. */
+ __le16 BootBuildNumber; /* zzzz (LE format) */
__u8 FirmwareMajorVersion; /* Operational Firmware version:xx. */
__u8 FirmwareMinorVersion; /* yy. */
diff --git a/drivers/usb/serial/io_ionsp.h b/drivers/usb/serial/io_ionsp.h
index 092e03d..5cc591b 100644
--- a/drivers/usb/serial/io_ionsp.h
+++ b/drivers/usb/serial/io_ionsp.h
@@ -89,10 +89,10 @@
//
struct int_status_pkt {
- __u16 RxBytesAvail; // Additional bytes available to
- // be read from Bulk IN pipe
- __u16 TxCredits[ MAX_RS232_PORTS ]; // Additional space available in
- // given port's TxBuffer
+ __u16 RxBytesAvail; // Additional bytes available to
+ // be read from Bulk IN pipe
+ __u16 TxCredits[MAX_RS232_PORTS]; // Additional space available in
+ // given port's TxBuffer
};
@@ -115,24 +115,24 @@
#define IOSP_CMD_STAT_BIT 0x80 // If set, this is command/status header
#define IS_CMD_STAT_HDR(Byte1) ((Byte1) & IOSP_CMD_STAT_BIT)
-#define IS_DATA_HDR(Byte1) (! IS_CMD_STAT_HDR(Byte1))
+#define IS_DATA_HDR(Byte1) (!IS_CMD_STAT_HDR(Byte1))
#define IOSP_GET_HDR_PORT(Byte1) ((__u8) ((Byte1) & IOSP_PORT_MASK))
-#define IOSP_GET_HDR_DATA_LEN(Byte1, Byte2) ((__u16) ( ((__u16)((Byte1) & 0x78)) << 5) | (Byte2))
+#define IOSP_GET_HDR_DATA_LEN(Byte1, Byte2) ((__u16) (((__u16)((Byte1) & 0x78)) << 5) | (Byte2))
#define IOSP_GET_STATUS_CODE(Byte1) ((__u8) (((Byte1) & 0x78) >> 3))
//
// These macros build the 1st and 2nd bytes for a data header
//
-#define IOSP_BUILD_DATA_HDR1(Port, Len) ((__u8) (((Port) | ((__u8) (((__u16) (Len)) >> 5) & 0x78 ))))
+#define IOSP_BUILD_DATA_HDR1(Port, Len) ((__u8) (((Port) | ((__u8) (((__u16) (Len)) >> 5) & 0x78))))
#define IOSP_BUILD_DATA_HDR2(Port, Len) ((__u8) (Len))
//
// These macros build the 1st and 2nd bytes for a command header
//
-#define IOSP_BUILD_CMD_HDR1(Port, Cmd) ((__u8) ( IOSP_CMD_STAT_BIT | (Port) | ((__u8) ((Cmd) << 3)) ))
+#define IOSP_BUILD_CMD_HDR1(Port, Cmd) ((__u8) (IOSP_CMD_STAT_BIT | (Port) | ((__u8) ((Cmd) << 3))))
//--------------------------------------------------------------
@@ -194,24 +194,25 @@
// Define macros to simplify building of IOSP cmds
//
-#define MAKE_CMD_WRITE_REG(ppBuf, pLen, Port, Reg, Val) \
- do { \
- (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1( (Port), IOSP_WRITE_UART_REG(Reg) ); \
- (*(ppBuf))[1] = (Val); \
- \
- *ppBuf += 2; \
- *pLen += 2; \
- } while (0)
+#define MAKE_CMD_WRITE_REG(ppBuf, pLen, Port, Reg, Val) \
+do { \
+ (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1((Port), \
+ IOSP_WRITE_UART_REG(Reg)); \
+ (*(ppBuf))[1] = (Val); \
+ \
+ *ppBuf += 2; \
+ *pLen += 2; \
+} while (0)
-#define MAKE_CMD_EXT_CMD(ppBuf, pLen, Port, ExtCmd, Param) \
- do { \
- (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1( (Port), IOSP_EXT_CMD ); \
- (*(ppBuf))[1] = (ExtCmd); \
- (*(ppBuf))[2] = (Param); \
- \
- *ppBuf += 3; \
- *pLen += 3; \
- } while (0)
+#define MAKE_CMD_EXT_CMD(ppBuf, pLen, Port, ExtCmd, Param) \
+do { \
+ (*(ppBuf))[0] = IOSP_BUILD_CMD_HDR1((Port), IOSP_EXT_CMD); \
+ (*(ppBuf))[1] = (ExtCmd); \
+ (*(ppBuf))[2] = (Param); \
+ \
+ *ppBuf += 3; \
+ *pLen += 3; \
+} while (0)
@@ -310,16 +311,16 @@
//
// IOSP_CMD_RX_CHECK_REQ
//
-// This command is used to assist in the implementation of the
-// IOCTL_SERIAL_PURGE Windows IOCTL.
-// This IOSP command tries to place a marker at the end of the RX
-// queue in the Edgeport. If the Edgeport RX queue is full then
-// the Check will be discarded.
-// It is up to the device driver to timeout waiting for the
-// RX_CHECK_RSP. If a RX_CHECK_RSP is received, the driver is
-// sure that all data has been received from the edgeport and
+// This command is used to assist in the implementation of the
+// IOCTL_SERIAL_PURGE Windows IOCTL.
+// This IOSP command tries to place a marker at the end of the RX
+// queue in the Edgeport. If the Edgeport RX queue is full then
+// the Check will be discarded.
+// It is up to the device driver to timeout waiting for the
+// RX_CHECK_RSP. If a RX_CHECK_RSP is received, the driver is
+// sure that all data has been received from the edgeport and
// may now purge any internal RX buffers.
-// Note tat the sequence numbers may be used to detect lost
+// Note tat the sequence numbers may be used to detect lost
// CHECK_REQs.
// Example for Port 0
@@ -341,7 +342,7 @@
//
// 1ssssPPP P1P1P1P1 [ P2P2P2P2P2 ]...
//
-// ssss: 00-07 2-byte status. ssss identifies which UART register
+// ssss: 00-07 2-byte status. ssss identifies which UART register
// has changed value, and the new value is in P1.
// Note that the ssss values do not correspond to the
// 16554 register numbers given in 16554.H. Instead,
@@ -383,14 +384,14 @@
// returns this in order to report
// changes in modem status lines
// (CTS, DSR, RI, CD)
-//
+//
// 0x02 // Available for future expansion
-// 0x03 //
-// 0x04 //
-// 0x05 //
-// 0x06 //
-// 0x07 //
+// 0x03 //
+// 0x04 //
+// 0x05 //
+// 0x06 //
+// 0x07 //
/****************************************************
@@ -400,7 +401,7 @@
#define IOSP_STATUS_LSR_DATA 0x08 // P1 is new value of LSR register (same as STATUS_LSR)
// P2 is errored character read from
-// RxFIFO after LSR reported an error.
+// RxFIFO after LSR reported an error.
#define IOSP_EXT_STATUS 0x09 // P1 is status/response code, param in P2.
@@ -408,7 +409,7 @@
// Response Codes (P1 values) for 3-byte status messages
#define IOSP_EXT_STATUS_CHASE_RSP 0 // Reply to CHASE_PORT cmd. P2 is outcome:
-#define IOSP_EXT_STATUS_CHASE_PASS 0 // P2 = 0: All Tx data drained successfully
+#define IOSP_EXT_STATUS_CHASE_PASS 0 // P2 = 0: All Tx data drained successfully
#define IOSP_EXT_STATUS_CHASE_FAIL 1 // P2 = 1: Timed out (stuck due to flow
// control from remote device).
@@ -446,9 +447,9 @@
// Macros to parse status messages
//
-#define IOSP_GET_STATUS_LEN(code) ( (code) < 8 ? 2 : ((code) < 0x0A ? 3 : 4) )
+#define IOSP_GET_STATUS_LEN(code) ((code) < 8 ? 2 : ((code) < 0x0A ? 3 : 4))
-#define IOSP_STATUS_IS_2BYTE(code) ( (code) < 0x08 )
-#define IOSP_STATUS_IS_3BYTE(code) ( ((code) >= 0x08) && ((code) <= 0x0B) )
-#define IOSP_STATUS_IS_4BYTE(code) ( ((code) >= 0x0C) && ((code) <= 0x0D) )
+#define IOSP_STATUS_IS_2BYTE(code) ((code) < 0x08)
+#define IOSP_STATUS_IS_3BYTE(code) (((code) >= 0x08) && ((code) <= 0x0B))
+#define IOSP_STATUS_IS_4BYTE(code) (((code) >= 0x0C) && ((code) <= 0x0D))
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index aa876f7..0fca265 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -36,6 +36,7 @@
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/serial.h>
+#include <linux/kfifo.h>
#include <linux/ioctl.h>
#include <linux/firmware.h>
#include <linux/uaccess.h>
@@ -56,10 +57,6 @@
#define EPROM_PAGE_SIZE 64
-struct edgeport_uart_buf_desc {
- __u32 count; /* Number of bytes currently in buffer */
-};
-
/* different hardware types */
#define HARDWARE_TYPE_930 0
#define HARDWARE_TYPE_TIUMP 1
@@ -87,14 +84,6 @@
__u8 hardware_type; /* Type of hardware */
} __attribute__((packed));
-/* circular buffer */
-struct edge_buf {
- unsigned int buf_size;
- char *buf_buf;
- char *buf_get;
- char *buf_put;
-};
-
struct edgeport_port {
__u16 uart_base;
__u16 dma_address;
@@ -108,7 +97,6 @@
int baud_rate;
int close_pending;
int lsr_event;
- struct edgeport_uart_buf_desc tx;
struct async_icount icount;
wait_queue_head_t delta_msr_wait; /* for handling sleeping while
waiting for msr change to
@@ -119,7 +107,7 @@
spinlock_t ep_lock;
int ep_read_urb_state;
int ep_write_urb_in_use;
- struct edge_buf *ep_out_buf;
+ struct kfifo write_fifo;
};
struct edgeport_serial {
@@ -249,17 +237,6 @@
static int edge_create_sysfs_attrs(struct usb_serial_port *port);
static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
-/* circular buffer */
-static struct edge_buf *edge_buf_alloc(unsigned int size);
-static void edge_buf_free(struct edge_buf *eb);
-static void edge_buf_clear(struct edge_buf *eb);
-static unsigned int edge_buf_data_avail(struct edge_buf *eb);
-static unsigned int edge_buf_space_avail(struct edge_buf *eb);
-static unsigned int edge_buf_put(struct edge_buf *eb, const char *buf,
- unsigned int count);
-static unsigned int edge_buf_get(struct edge_buf *eb, char *buf,
- unsigned int count);
-
static int ti_vread_sync(struct usb_device *dev, __u8 request,
__u16 value, __u16 index, u8 *data, int size)
@@ -590,7 +567,7 @@
add_wait_queue(&tty->write_wait, &wait);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
- if (edge_buf_data_avail(port->ep_out_buf) == 0
+ if (kfifo_len(&port->write_fifo) == 0
|| timeout == 0 || signal_pending(current)
|| !usb_get_intfdata(port->port->serial->interface))
/* disconnect */
@@ -602,7 +579,7 @@
set_current_state(TASK_RUNNING);
remove_wait_queue(&tty->write_wait, &wait);
if (flush)
- edge_buf_clear(port->ep_out_buf);
+ kfifo_reset_out(&port->write_fifo);
spin_unlock_irqrestore(&port->ep_lock, flags);
tty_kref_put(tty);
@@ -2089,7 +2066,6 @@
const unsigned char *data, int count)
{
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
@@ -2103,10 +2079,8 @@
if (edge_port->close_pending == 1)
return -ENODEV;
- spin_lock_irqsave(&edge_port->ep_lock, flags);
- count = edge_buf_put(edge_port->ep_out_buf, data, count);
- spin_unlock_irqrestore(&edge_port->ep_lock, flags);
-
+ count = kfifo_in_locked(&edge_port->write_fifo, data, count,
+ &edge_port->ep_lock);
edge_send(tty);
return count;
@@ -2129,7 +2103,7 @@
return;
}
- count = edge_buf_get(edge_port->ep_out_buf,
+ count = kfifo_out(&edge_port->write_fifo,
port->write_urb->transfer_buffer,
port->bulk_out_size);
@@ -2185,7 +2159,7 @@
return 0;
spin_lock_irqsave(&edge_port->ep_lock, flags);
- room = edge_buf_space_avail(edge_port->ep_out_buf);
+ room = kfifo_avail(&edge_port->write_fifo);
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
dbg("%s - returns %d", __func__, room);
@@ -2207,7 +2181,7 @@
return 0;
spin_lock_irqsave(&edge_port->ep_lock, flags);
- chars = edge_buf_data_avail(edge_port->ep_out_buf);
+ chars = kfifo_len(&edge_port->write_fifo);
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
dbg("%s - returns %d", __func__, chars);
@@ -2664,8 +2638,8 @@
goto cleanup;
}
spin_lock_init(&edge_port->ep_lock);
- edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE);
- if (edge_port->ep_out_buf == NULL) {
+ if (kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE,
+ GFP_KERNEL)) {
dev_err(&serial->dev->dev, "%s - Out of memory\n",
__func__);
kfree(edge_port);
@@ -2682,7 +2656,7 @@
cleanup:
for (--i; i >= 0; --i) {
edge_port = usb_get_serial_port_data(serial->port[i]);
- edge_buf_free(edge_port->ep_out_buf);
+ kfifo_free(&edge_port->write_fifo);
kfree(edge_port);
usb_set_serial_port_data(serial->port[i], NULL);
}
@@ -2713,7 +2687,7 @@
for (i = 0; i < serial->num_ports; ++i) {
edge_port = usb_get_serial_port_data(serial->port[i]);
- edge_buf_free(edge_port->ep_out_buf);
+ kfifo_free(&edge_port->write_fifo);
kfree(edge_port);
}
kfree(usb_get_serial_data(serial));
@@ -2763,182 +2737,6 @@
}
-/* Circular Buffer */
-
-/*
- * edge_buf_alloc
- *
- * Allocate a circular buffer and all associated memory.
- */
-
-static struct edge_buf *edge_buf_alloc(unsigned int size)
-{
- struct edge_buf *eb;
-
-
- if (size == 0)
- return NULL;
-
- eb = kmalloc(sizeof(struct edge_buf), GFP_KERNEL);
- if (eb == NULL)
- return NULL;
-
- eb->buf_buf = kmalloc(size, GFP_KERNEL);
- if (eb->buf_buf == NULL) {
- kfree(eb);
- return NULL;
- }
-
- eb->buf_size = size;
- eb->buf_get = eb->buf_put = eb->buf_buf;
-
- return eb;
-}
-
-
-/*
- * edge_buf_free
- *
- * Free the buffer and all associated memory.
- */
-
-static void edge_buf_free(struct edge_buf *eb)
-{
- if (eb) {
- kfree(eb->buf_buf);
- kfree(eb);
- }
-}
-
-
-/*
- * edge_buf_clear
- *
- * Clear out all data in the circular buffer.
- */
-
-static void edge_buf_clear(struct edge_buf *eb)
-{
- if (eb != NULL)
- eb->buf_get = eb->buf_put;
- /* equivalent to a get of all data available */
-}
-
-
-/*
- * edge_buf_data_avail
- *
- * Return the number of bytes of data available in the circular
- * buffer.
- */
-
-static unsigned int edge_buf_data_avail(struct edge_buf *eb)
-{
- if (eb == NULL)
- return 0;
- return ((eb->buf_size + eb->buf_put - eb->buf_get) % eb->buf_size);
-}
-
-
-/*
- * edge_buf_space_avail
- *
- * Return the number of bytes of space available in the circular
- * buffer.
- */
-
-static unsigned int edge_buf_space_avail(struct edge_buf *eb)
-{
- if (eb == NULL)
- return 0;
- return ((eb->buf_size + eb->buf_get - eb->buf_put - 1) % eb->buf_size);
-}
-
-
-/*
- * edge_buf_put
- *
- * Copy data data from a user buffer and put it into the circular buffer.
- * Restrict to the amount of space available.
- *
- * Return the number of bytes copied.
- */
-
-static unsigned int edge_buf_put(struct edge_buf *eb, const char *buf,
- unsigned int count)
-{
- unsigned int len;
-
-
- if (eb == NULL)
- return 0;
-
- len = edge_buf_space_avail(eb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = eb->buf_buf + eb->buf_size - eb->buf_put;
- if (count > len) {
- memcpy(eb->buf_put, buf, len);
- memcpy(eb->buf_buf, buf+len, count - len);
- eb->buf_put = eb->buf_buf + count - len;
- } else {
- memcpy(eb->buf_put, buf, count);
- if (count < len)
- eb->buf_put += count;
- else /* count == len */
- eb->buf_put = eb->buf_buf;
- }
-
- return count;
-}
-
-
-/*
- * edge_buf_get
- *
- * Get data from the circular buffer and copy to the given buffer.
- * Restrict to the amount of data available.
- *
- * Return the number of bytes copied.
- */
-
-static unsigned int edge_buf_get(struct edge_buf *eb, char *buf,
- unsigned int count)
-{
- unsigned int len;
-
-
- if (eb == NULL)
- return 0;
-
- len = edge_buf_data_avail(eb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = eb->buf_buf + eb->buf_size - eb->buf_get;
- if (count > len) {
- memcpy(buf, eb->buf_get, len);
- memcpy(buf+len, eb->buf_buf, count - len);
- eb->buf_get = eb->buf_buf + count - len;
- } else {
- memcpy(buf, eb->buf_get, count);
- if (count < len)
- eb->buf_get += count;
- else /* count == len */
- eb->buf_get = eb->buf_buf;
- }
-
- return count;
-}
-
-
static struct usb_serial_driver edgeport_1port_device = {
.driver = {
.owner = THIS_MODULE,
diff --git a/drivers/usb/serial/io_ti.h b/drivers/usb/serial/io_ti.h
index cab84f2..1bd67b2 100644
--- a/drivers/usb/serial/io_ti.h
+++ b/drivers/usb/serial/io_ti.h
@@ -1,4 +1,4 @@
-/*****************************************************************************
+/*****************************************************************************
*
* Copyright (C) 1997-2002 Inside Out Networks, Inc.
*
@@ -22,10 +22,10 @@
#define DTK_ADDR_SPACE_I2C_TYPE_II 0x82 /* Addr is placed in I2C area */
#define DTK_ADDR_SPACE_I2C_TYPE_III 0x83 /* Addr is placed in I2C area */
-// UART Defines
-#define UMPMEM_BASE_UART1 0xFFA0 /* UMP UART1 base address */
-#define UMPMEM_BASE_UART2 0xFFB0 /* UMP UART2 base address */
-#define UMPMEM_OFFS_UART_LSR 0x05 /* UMP UART LSR register offset */
+/* UART Defines */
+#define UMPMEM_BASE_UART1 0xFFA0 /* UMP UART1 base address */
+#define UMPMEM_BASE_UART2 0xFFB0 /* UMP UART2 base address */
+#define UMPMEM_OFFS_UART_LSR 0x05 /* UMP UART LSR register offset */
/* Bits per character */
#define UMP_UART_CHAR5BITS 0x00
@@ -54,7 +54,7 @@
#define UMP_UART_LSR_RX_MASK 0x10
#define UMP_UART_LSR_TX_MASK 0x20
-#define UMP_UART_LSR_DATA_MASK ( LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK )
+#define UMP_UART_LSR_DATA_MASK (LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK)
/* Port Settings Constants) */
#define UMP_MASK_UART_FLAGS_RTS_FLOW 0x0001
@@ -79,50 +79,57 @@
#define UMP_PORT_DIR_OUT 0x01
#define UMP_PORT_DIR_IN 0x02
-// Address of Port 0
-#define UMPM_UART1_PORT 0x03
+/* Address of Port 0 */
+#define UMPM_UART1_PORT 0x03
-// Commands
-#define UMPC_SET_CONFIG 0x05
-#define UMPC_OPEN_PORT 0x06
-#define UMPC_CLOSE_PORT 0x07
-#define UMPC_START_PORT 0x08
-#define UMPC_STOP_PORT 0x09
-#define UMPC_TEST_PORT 0x0A
-#define UMPC_PURGE_PORT 0x0B
+/* Commands */
+#define UMPC_SET_CONFIG 0x05
+#define UMPC_OPEN_PORT 0x06
+#define UMPC_CLOSE_PORT 0x07
+#define UMPC_START_PORT 0x08
+#define UMPC_STOP_PORT 0x09
+#define UMPC_TEST_PORT 0x0A
+#define UMPC_PURGE_PORT 0x0B
-#define UMPC_COMPLETE_READ 0x80 // Force the Firmware to complete the current Read
-#define UMPC_HARDWARE_RESET 0x81 // Force UMP back into BOOT Mode
-#define UMPC_COPY_DNLD_TO_I2C 0x82 // Copy current download image to type 0xf2 record in 16k I2C
- // firmware will change 0xff record to type 2 record when complete
+/* Force the Firmware to complete the current Read */
+#define UMPC_COMPLETE_READ 0x80
+/* Force UMP back into BOOT Mode */
+#define UMPC_HARDWARE_RESET 0x81
+/*
+ * Copy current download image to type 0xf2 record in 16k I2C
+ * firmware will change 0xff record to type 2 record when complete
+ */
+#define UMPC_COPY_DNLD_TO_I2C 0x82
- // Special function register commands
- // wIndex is register address
- // wValue is MSB/LSB mask/data
-#define UMPC_WRITE_SFR 0x83 // Write SFR Register
+/*
+ * Special function register commands
+ * wIndex is register address
+ * wValue is MSB/LSB mask/data
+ */
+#define UMPC_WRITE_SFR 0x83 /* Write SFR Register */
- // wIndex is register address
-#define UMPC_READ_SFR 0x84 // Read SRF Register
+/* wIndex is register address */
+#define UMPC_READ_SFR 0x84 /* Read SRF Register */
- // Set or Clear DTR (wValue bit 0 Set/Clear) wIndex ModuleID (port)
+/* Set or Clear DTR (wValue bit 0 Set/Clear) wIndex ModuleID (port) */
#define UMPC_SET_CLR_DTR 0x85
- // Set or Clear RTS (wValue bit 0 Set/Clear) wIndex ModuleID (port)
+/* Set or Clear RTS (wValue bit 0 Set/Clear) wIndex ModuleID (port) */
#define UMPC_SET_CLR_RTS 0x86
- // Set or Clear LOOPBACK (wValue bit 0 Set/Clear) wIndex ModuleID (port)
+/* Set or Clear LOOPBACK (wValue bit 0 Set/Clear) wIndex ModuleID (port) */
#define UMPC_SET_CLR_LOOPBACK 0x87
- // Set or Clear BREAK (wValue bit 0 Set/Clear) wIndex ModuleID (port)
+/* Set or Clear BREAK (wValue bit 0 Set/Clear) wIndex ModuleID (port) */
#define UMPC_SET_CLR_BREAK 0x88
- // Read MSR wIndex ModuleID (port)
+/* Read MSR wIndex ModuleID (port) */
#define UMPC_READ_MSR 0x89
- /* Toolkit commands */
- /* Read-write group */
-#define UMPC_MEMORY_READ 0x92
-#define UMPC_MEMORY_WRITE 0x93
+/* Toolkit commands */
+/* Read-write group */
+#define UMPC_MEMORY_READ 0x92
+#define UMPC_MEMORY_WRITE 0x93
/*
* UMP DMA Definitions
@@ -130,8 +137,7 @@
#define UMPD_OEDB1_ADDRESS 0xFF08
#define UMPD_OEDB2_ADDRESS 0xFF10
-struct out_endpoint_desc_block
-{
+struct out_endpoint_desc_block {
__u8 Configuration;
__u8 XBufAddr;
__u8 XByteCount;
@@ -147,8 +153,8 @@
* TYPE DEFINITIONS
* Structures for Firmware commands
*/
-struct ump_uart_config /* UART settings */
-{
+/* UART settings */
+struct ump_uart_config {
__u16 wBaudRate; /* Baud rate */
__u16 wFlags; /* Bitmap mask of flags */
__u8 bDataBits; /* 5..8 - data bits per character */
@@ -165,8 +171,8 @@
* TYPE DEFINITIONS
* Structures for USB interrupts
*/
-struct ump_interrupt /* Interrupt packet structure */
-{
+/* Interrupt packet structure */
+struct ump_interrupt {
__u8 bICode; /* Interrupt code (interrupt num) */
__u8 bIInfo; /* Interrupt information */
} __attribute__((packed));
diff --git a/drivers/usb/serial/io_usbvend.h b/drivers/usb/serial/io_usbvend.h
index 8e1a491..51f83fb 100644
--- a/drivers/usb/serial/io_usbvend.h
+++ b/drivers/usb/serial/io_usbvend.h
@@ -26,7 +26,7 @@
//
// Definitions of USB product IDs
-//
+//
#define USB_VENDOR_ID_ION 0x1608 // Our VID
#define USB_VENDOR_ID_TI 0x0451 // TI VID
@@ -54,7 +54,7 @@
// Product IDs - assigned to match middle digit of serial number (No longer true)
#define ION_DEVICE_ID_80251_NETCHIP 0x020 // This bit is set in the PID if this edgeport hardware$
- // is based on the 80251+Netchip.
+ // is based on the 80251+Netchip.
#define ION_DEVICE_ID_GENERATION_1 0x00 // Value for 930 based edgeports
#define ION_DEVICE_ID_GENERATION_2 0x01 // Value for 80251+Netchip.
@@ -134,7 +134,7 @@
#define ION_DEVICE_ID_TI_EDGEPORT_416 0x0212 // Edgeport/416
#define ION_DEVICE_ID_TI_EDGEPORT_1 0x0215 // Edgeport/1 RS232
#define ION_DEVICE_ID_TI_EDGEPORT_42 0x0217 // Edgeport/42 4 hub 2 RS232
-#define ION_DEVICE_ID_TI_EDGEPORT_22I 0x021A // Edgeport/22I is an Edgeport/4 with ports 1&2 RS422 and ports 3&4 RS232
+#define ION_DEVICE_ID_TI_EDGEPORT_22I 0x021A // Edgeport/22I is an Edgeport/4 with ports 1&2 RS422 and ports 3&4 RS232
#define ION_DEVICE_ID_TI_EDGEPORT_2C 0x021B // Edgeport/2c RS232
#define ION_DEVICE_ID_TI_EDGEPORT_221C 0x021C // Edgeport/221c is a TI based Edgeport/2 with lucent chip and
// 2 external hub ports - Large I2C
@@ -142,7 +142,7 @@
// 2 external hub ports - Large I2C
#define ION_DEVICE_ID_TI_EDGEPORT_21C 0x021E // Edgeport/21c is a TI based Edgeport/2 with lucent chip
-// Generation 3 devices -- 3410 based edgport/1 (256 byte I2C)
+// Generation 3 devices -- 3410 based edgport/1 (256 byte I2C)
#define ION_DEVICE_ID_TI_TI3410_EDGEPORT_1 0x0240 // Edgeport/1 RS232
#define ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I 0x0241 // Edgeport/1i- RS422 model
@@ -176,7 +176,7 @@
// Default to /P function
#define ION_DEVICE_ID_PLUS_PWR_HP4CD 0x30C // 5052 Plus Power HubPort/4CD+ (for Dell)
-#define ION_DEVICE_ID_PLUS_PWR_HP4C 0x30D // 5052 Plus Power HubPort/4C+
+#define ION_DEVICE_ID_PLUS_PWR_HP4C 0x30D // 5052 Plus Power HubPort/4C+
#define ION_DEVICE_ID_PLUS_PWR_PCI 0x30E // 3410 Plus Power PCI Host Controller 4 port
@@ -217,17 +217,17 @@
#define ION_DEVICE_ID_MT4X56USB 0x1403 // OEM device
-#define GENERATION_ID_FROM_USB_PRODUCT_ID( ProductId ) \
- ( (__u16) ((ProductId >> 8) & (ION_GENERATION_MASK)) )
+#define GENERATION_ID_FROM_USB_PRODUCT_ID(ProductId) \
+ ((__u16) ((ProductId >> 8) & (ION_GENERATION_MASK)))
-#define MAKE_USB_PRODUCT_ID( OemId, DeviceId ) \
- ( (__u16) (((OemId) << 10) || (DeviceId)) )
+#define MAKE_USB_PRODUCT_ID(OemId, DeviceId) \
+ ((__u16) (((OemId) << 10) || (DeviceId)))
-#define DEVICE_ID_FROM_USB_PRODUCT_ID( ProductId ) \
- ( (__u16) ((ProductId) & (EDGEPORT_DEVICE_ID_MASK)) )
+#define DEVICE_ID_FROM_USB_PRODUCT_ID(ProductId) \
+ ((__u16) ((ProductId) & (EDGEPORT_DEVICE_ID_MASK)))
-#define OEM_ID_FROM_USB_PRODUCT_ID( ProductId ) \
- ( (__u16) (((ProductId) >> 10) & 0x3F) )
+#define OEM_ID_FROM_USB_PRODUCT_ID(ProductId) \
+ ((__u16) (((ProductId) >> 10) & 0x3F))
//
// Definitions of parameters for download code. Note that these are
@@ -237,7 +237,7 @@
// TxCredits value below which driver won't bother sending (to prevent too many small writes).
// Send only if above 25%
-#define EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(InitialCredit, MaxPacketSize) (max( ((InitialCredit) / 4), (MaxPacketSize) ))
+#define EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(InitialCredit, MaxPacketSize) (max(((InitialCredit) / 4), (MaxPacketSize)))
#define EDGE_FW_BULK_MAX_PACKET_SIZE 64 // Max Packet Size for Bulk In Endpoint (EP1)
#define EDGE_FW_BULK_READ_BUFFER_SIZE 1024 // Size to use for Bulk reads
@@ -263,7 +263,7 @@
// wValue = 16-bit address
// wIndex = unused (though we could put segment 00: or FF: here)
// wLength = # bytes to read/write (max 64)
-//
+//
#define USB_REQUEST_ION_RESET_DEVICE 0 // Warm reboot Edgeport, retaining USB address
#define USB_REQUEST_ION_GET_EPIC_DESC 1 // Get Edgeport Compatibility Descriptor
@@ -278,7 +278,7 @@
#define USB_REQUEST_ION_ENABLE_SUSPEND 9 // Enable/Disable suspend feature
// (wValue != 0: Enable; wValue = 0: Disable)
-#define USB_REQUEST_ION_SEND_IOSP 10 // Send an IOSP command to the edgeport over the control pipe
+#define USB_REQUEST_ION_SEND_IOSP 10 // Send an IOSP command to the edgeport over the control pipe
#define USB_REQUEST_ION_RECV_IOSP 11 // Receive an IOSP command from the edgeport over the control pipe
@@ -301,8 +301,7 @@
// this is a "real" Edgeport.
//
-struct edge_compatibility_bits
-{
+struct edge_compatibility_bits {
// This __u32 defines which Vendor-specific commands/functionality
// the device supports on the default EP0 pipe.
@@ -334,24 +333,22 @@
__u32 TrueEdgeport : 1; // 0001 Set if device is a 'real' Edgeport
// (Used only by driver, NEVER set by an EPiC device)
__u32 GenUnused : 31; // Available for future expansion, must be 0
-
};
#define EDGE_COMPATIBILITY_MASK0 0x0001
#define EDGE_COMPATIBILITY_MASK1 0x3FFF
#define EDGE_COMPATIBILITY_MASK2 0x0001
-struct edge_compatibility_descriptor
-{
+struct edge_compatibility_descriptor {
__u8 Length; // Descriptor Length (per USB spec)
__u8 DescType; // Descriptor Type (per USB spec, =DEVICE type)
__u8 EpicVer; // Version of EPiC spec supported
- // (Currently must be 1)
+ // (Currently must be 1)
__u8 NumPorts; // Number of serial ports supported
__u8 iDownloadFile; // Index of string containing download code filename
- // 0=no download, FF=download compiled into driver.
- __u8 Unused[ 3 ]; // Available for future expansion, must be 0
- // (Currently must be 0).
+ // 0=no download, FF=download compiled into driver.
+ __u8 Unused[3]; // Available for future expansion, must be 0
+ // (Currently must be 0).
__u8 MajorVersion; // Firmware version: xx.
__u8 MinorVersion; // yy.
__le16 BuildNumber; // zzzz (LE format)
@@ -359,9 +356,7 @@
// The following structure contains __u32s, with each bit
// specifying whether the EPiC device supports the given
// command or functionality.
-
struct edge_compatibility_bits Supports;
-
};
// Values for iDownloadFile
@@ -391,8 +386,8 @@
// Define the max block size that may be read or written
// in a read/write RAM/ROM command.
-#define MAX_SIZE_REQ_ION_READ_MEM ( (__u16) 64 )
-#define MAX_SIZE_REQ_ION_WRITE_MEM ( (__u16) 64 )
+#define MAX_SIZE_REQ_ION_READ_MEM ((__u16)64)
+#define MAX_SIZE_REQ_ION_WRITE_MEM ((__u16)64)
//
@@ -545,7 +540,7 @@
__u8 MajorVersion; // C6 Firmware version: xx.
__u8 MinorVersion; // C7 yy.
__le16 BuildNumber; // C8 zzzz (LE format)
-
+
__u16 EnumRootDescTable; // CA Root of ROM-based descriptor table
__u8 NumDescTypes; // CC Number of supported descriptor types
@@ -597,41 +592,36 @@
#define I2C_DESC_TYPE_ION 0 // Not defined by TI
-struct ti_i2c_desc
-{
+struct ti_i2c_desc {
__u8 Type; // Type of descriptor
__u16 Size; // Size of data only not including header
__u8 CheckSum; // Checksum (8 bit sum of data only)
__u8 Data[0]; // Data starts here
-}__attribute__((packed));
+} __attribute__((packed));
// for 5152 devices only (type 2 record)
// for 3410 the version is stored in the WATCHPORT_FIRMWARE_VERSION descriptor
-struct ti_i2c_firmware_rec
-{
+struct ti_i2c_firmware_rec {
__u8 Ver_Major; // Firmware Major version number
__u8 Ver_Minor; // Firmware Minor version number
__u8 Data[0]; // Download starts here
-}__attribute__((packed));
+} __attribute__((packed));
-struct watchport_firmware_version
-{
+struct watchport_firmware_version {
// Added 2 bytes for version number
__u8 Version_Major; // Download Version (for Watchport)
__u8 Version_Minor;
-}__attribute__((packed));
+} __attribute__((packed));
// Structure of header of download image in fw_down.h
-struct ti_i2c_image_header
-{
+struct ti_i2c_image_header {
__le16 Length;
__u8 CheckSum;
-}__attribute__((packed));
+} __attribute__((packed));
-struct ti_basic_descriptor
-{
+struct ti_basic_descriptor {
__u8 Power; // Self powered
// bit 7: 1 - power switching supported
// 0 - power switching not supported
@@ -663,9 +653,9 @@
#define TI_I2C_SIZE_MASK 0x1f // 5 bits
#define TI_GET_I2C_SIZE(x) ((((x) & TI_I2C_SIZE_MASK)+1)*256)
-#define TI_MAX_I2C_SIZE ( 16 * 1024 )
+#define TI_MAX_I2C_SIZE (16 * 1024)
-#define TI_MANUF_VERSION_0 0
+#define TI_MANUF_VERSION_0 0
// IonConig2 flags
#define TI_CONFIG2_RS232 0x01
@@ -676,8 +666,7 @@
#define TI_CONFIG2_WATCHPORT 0x10
-struct edge_ti_manuf_descriptor
-{
+struct edge_ti_manuf_descriptor {
__u8 IonConfig; // Config byte for ION manufacturing use
__u8 IonConfig2; // Expansion
__u8 Version; // Version
@@ -688,7 +677,7 @@
__u8 HubConfig2; // Used to configure the Hub
__u8 TotalPorts; // Total Number of Com Ports for the entire device (All UMPs)
__u8 Reserved; // Reserved
-}__attribute__((packed));
+} __attribute__((packed));
#endif // if !defined(_USBVEND_H)
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index 3fea929..28913fa 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -56,7 +56,6 @@
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
-#include "ipaq.h"
#define KP_RETRIES 100
@@ -64,7 +63,7 @@
* Version Information
*/
-#define DRIVER_VERSION "v0.5"
+#define DRIVER_VERSION "v1.0"
#define DRIVER_AUTHOR "Ganesh Varadarajan <ganesh@veritas.com>"
#define DRIVER_DESC "USB PocketPC PDA driver"
@@ -76,20 +75,8 @@
/* Function prototypes for an ipaq */
static int ipaq_open(struct tty_struct *tty,
struct usb_serial_port *port);
-static void ipaq_close(struct usb_serial_port *port);
static int ipaq_calc_num_ports(struct usb_serial *serial);
static int ipaq_startup(struct usb_serial *serial);
-static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static int ipaq_write_bulk(struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static void ipaq_write_gather(struct usb_serial_port *port);
-static void ipaq_read_bulk_callback(struct urb *urb);
-static void ipaq_write_bulk_callback(struct urb *urb);
-static int ipaq_write_room(struct tty_struct *tty);
-static int ipaq_chars_in_buffer(struct tty_struct *tty);
-static void ipaq_destroy_lists(struct usb_serial_port *port);
-
static struct usb_device_id ipaq_id_table [] = {
/* The first entry is a placeholder for the insmod-specified device */
@@ -558,7 +545,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = ipaq_id_table,
- .no_dynamic_id = 1,
+ .no_dynamic_id = 1,
};
@@ -569,91 +556,24 @@
.name = "ipaq",
},
.description = "PocketPC PDA",
- .usb_driver = &ipaq_driver,
+ .usb_driver = &ipaq_driver,
.id_table = ipaq_id_table,
+ .bulk_in_size = 256,
+ .bulk_out_size = 256,
.open = ipaq_open,
- .close = ipaq_close,
.attach = ipaq_startup,
.calc_num_ports = ipaq_calc_num_ports,
- .write = ipaq_write,
- .write_room = ipaq_write_room,
- .chars_in_buffer = ipaq_chars_in_buffer,
- .read_bulk_callback = ipaq_read_bulk_callback,
- .write_bulk_callback = ipaq_write_bulk_callback,
};
-static spinlock_t write_list_lock;
-static int bytes_in;
-static int bytes_out;
-
static int ipaq_open(struct tty_struct *tty,
struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
- struct ipaq_private *priv;
- struct ipaq_packet *pkt;
- int i, result = 0;
+ int result = 0;
int retries = connect_retries;
dbg("%s - port %d", __func__, port->number);
- bytes_in = 0;
- bytes_out = 0;
- priv = kmalloc(sizeof(struct ipaq_private), GFP_KERNEL);
- if (priv == NULL) {
- dev_err(&port->dev, "%s - Out of memory\n", __func__);
- return -ENOMEM;
- }
- usb_set_serial_port_data(port, priv);
- priv->active = 0;
- priv->queue_len = 0;
- priv->free_len = 0;
- INIT_LIST_HEAD(&priv->queue);
- INIT_LIST_HEAD(&priv->freelist);
-
- for (i = 0; i < URBDATA_QUEUE_MAX / PACKET_SIZE; i++) {
- pkt = kmalloc(sizeof(struct ipaq_packet), GFP_KERNEL);
- if (pkt == NULL)
- goto enomem;
-
- pkt->data = kmalloc(PACKET_SIZE, GFP_KERNEL);
- if (pkt->data == NULL) {
- kfree(pkt);
- goto enomem;
- }
- pkt->len = 0;
- pkt->written = 0;
- INIT_LIST_HEAD(&pkt->list);
- list_add(&pkt->list, &priv->freelist);
- priv->free_len += PACKET_SIZE;
- }
-
- /*
- * Lose the small buffers usbserial provides. Make larger ones.
- */
-
- kfree(port->bulk_in_buffer);
- kfree(port->bulk_out_buffer);
- /* make sure the generic serial code knows */
- port->bulk_out_buffer = NULL;
-
- port->bulk_in_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL);
- if (port->bulk_in_buffer == NULL)
- goto enomem;
-
- port->bulk_out_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL);
- if (port->bulk_out_buffer == NULL) {
- /* the buffer is useless, free it */
- kfree(port->bulk_in_buffer);
- port->bulk_in_buffer = NULL;
- goto enomem;
- }
- port->read_urb->transfer_buffer = port->bulk_in_buffer;
- port->write_urb->transfer_buffer = port->bulk_out_buffer;
- port->read_urb->transfer_buffer_length = URBDATA_SIZE;
- port->bulk_out_size = port->write_urb->transfer_buffer_length
- = URBDATA_SIZE;
-
msleep(1000*initial_wait);
/*
@@ -663,7 +583,6 @@
* through. Since this has a reasonably high failure rate, we retry
* several times.
*/
-
while (retries--) {
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
@@ -673,269 +592,15 @@
msleep(1000);
}
-
if (!retries && result) {
- dev_err(&port->dev, "%s - failed doing control urb, error %d\n", __func__, result);
- goto error;
+ dev_err(&port->dev, "%s - failed doing control urb, error %d\n",
+ __func__, result);
+ return result;
}
- /* Start reading from the device */
- usb_fill_bulk_urb(port->read_urb, serial->dev,
- usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ipaq_read_bulk_callback, port);
-
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result) {
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
- goto error;
- }
-
- return 0;
-
-enomem:
- result = -ENOMEM;
- dev_err(&port->dev, "%s - Out of memory\n", __func__);
-error:
- ipaq_destroy_lists(port);
- kfree(priv);
- return result;
+ return usb_serial_generic_open(tty, port);
}
-
-static void ipaq_close(struct usb_serial_port *port)
-{
- struct ipaq_private *priv = usb_get_serial_port_data(port);
-
- dbg("%s - port %d", __func__, port->number);
-
- /*
- * shut down bulk read and write
- */
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
- ipaq_destroy_lists(port);
- kfree(priv);
- usb_set_serial_port_data(port, NULL);
-
- /* Uncomment the following line if you want to see some statistics
- * in your syslog */
- /* info ("Bytes In = %d Bytes Out = %d", bytes_in, bytes_out); */
-}
-
-static void ipaq_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct tty_struct *tty;
- unsigned char *data = urb->transfer_buffer;
- int result;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
-
- tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- tty_insert_flip_string(tty, data, urb->actual_length);
- tty_flip_buffer_push(tty);
- bytes_in += urb->actual_length;
- }
- tty_kref_put(tty);
-
- /* Continue trying to always read */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ipaq_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- return;
-}
-
-static int ipaq_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- const unsigned char *current_position = buf;
- int bytes_sent = 0;
- int transfer_size;
-
- dbg("%s - port %d", __func__, port->number);
-
- while (count > 0) {
- transfer_size = min(count, PACKET_SIZE);
- if (ipaq_write_bulk(port, current_position, transfer_size))
- break;
- current_position += transfer_size;
- bytes_sent += transfer_size;
- count -= transfer_size;
- bytes_out += transfer_size;
- }
-
- return bytes_sent;
-}
-
-static int ipaq_write_bulk(struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct ipaq_private *priv = usb_get_serial_port_data(port);
- struct ipaq_packet *pkt = NULL;
- int result = 0;
- unsigned long flags;
-
- if (priv->free_len <= 0) {
- dbg("%s - we're stuffed", __func__);
- return -EAGAIN;
- }
-
- spin_lock_irqsave(&write_list_lock, flags);
- if (!list_empty(&priv->freelist)) {
- pkt = list_entry(priv->freelist.next, struct ipaq_packet, list);
- list_del(&pkt->list);
- priv->free_len -= PACKET_SIZE;
- }
- spin_unlock_irqrestore(&write_list_lock, flags);
- if (pkt == NULL) {
- dbg("%s - we're stuffed", __func__);
- return -EAGAIN;
- }
-
- memcpy(pkt->data, buf, count);
- usb_serial_debug_data(debug, &port->dev, __func__, count, pkt->data);
-
- pkt->len = count;
- pkt->written = 0;
- spin_lock_irqsave(&write_list_lock, flags);
- list_add_tail(&pkt->list, &priv->queue);
- priv->queue_len += count;
- if (priv->active == 0) {
- priv->active = 1;
- ipaq_write_gather(port);
- spin_unlock_irqrestore(&write_list_lock, flags);
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- } else {
- spin_unlock_irqrestore(&write_list_lock, flags);
- }
- return result;
-}
-
-static void ipaq_write_gather(struct usb_serial_port *port)
-{
- struct ipaq_private *priv = usb_get_serial_port_data(port);
- struct usb_serial *serial = port->serial;
- int count, room;
- struct ipaq_packet *pkt, *tmp;
- struct urb *urb = port->write_urb;
-
- room = URBDATA_SIZE;
- list_for_each_entry_safe(pkt, tmp, &priv->queue, list) {
- count = min(room, (int)(pkt->len - pkt->written));
- memcpy(urb->transfer_buffer + (URBDATA_SIZE - room),
- pkt->data + pkt->written, count);
- room -= count;
- pkt->written += count;
- priv->queue_len -= count;
- if (pkt->written == pkt->len) {
- list_move(&pkt->list, &priv->freelist);
- priv->free_len += PACKET_SIZE;
- }
- if (room == 0)
- break;
- }
-
- count = URBDATA_SIZE - room;
- usb_fill_bulk_urb(port->write_urb, serial->dev,
- usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer, count,
- ipaq_write_bulk_callback, port);
- return;
-}
-
-static void ipaq_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct ipaq_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
- int result;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
- return;
- }
-
- spin_lock_irqsave(&write_list_lock, flags);
- if (!list_empty(&priv->queue)) {
- ipaq_write_gather(port);
- spin_unlock_irqrestore(&write_list_lock, flags);
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- } else {
- priv->active = 0;
- spin_unlock_irqrestore(&write_list_lock, flags);
- }
-
- usb_serial_port_softint(port);
-}
-
-static int ipaq_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct ipaq_private *priv = usb_get_serial_port_data(port);
-
- dbg("%s - freelen %d", __func__, priv->free_len);
- return priv->free_len;
-}
-
-static int ipaq_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct ipaq_private *priv = usb_get_serial_port_data(port);
-
- dbg("%s - queuelen %d", __func__, priv->queue_len);
- return priv->queue_len;
-}
-
-static void ipaq_destroy_lists(struct usb_serial_port *port)
-{
- struct ipaq_private *priv = usb_get_serial_port_data(port);
- struct ipaq_packet *pkt, *tmp;
-
- list_for_each_entry_safe(pkt, tmp, &priv->queue, list) {
- kfree(pkt->data);
- kfree(pkt);
- }
- list_for_each_entry_safe(pkt, tmp, &priv->freelist, list) {
- kfree(pkt->data);
- kfree(pkt);
- }
-}
-
-
static int ipaq_calc_num_ports(struct usb_serial *serial)
{
/*
@@ -994,7 +659,6 @@
static int __init ipaq_init(void)
{
int retval;
- spin_lock_init(&write_list_lock);
retval = usb_serial_register(&ipaq_device);
if (retval)
goto failed_usb_serial_register;
@@ -1015,7 +679,6 @@
return retval;
}
-
static void __exit ipaq_exit(void)
{
usb_deregister(&ipaq_driver);
diff --git a/drivers/usb/serial/ipaq.h b/drivers/usb/serial/ipaq.h
deleted file mode 100644
index 2b90359..0000000
--- a/drivers/usb/serial/ipaq.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * USB Compaq iPAQ driver
- *
- * Copyright (C) 2001 - 2002
- * Ganesh Varadarajan <ganesh@veritas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#ifndef __LINUX_USB_SERIAL_IPAQ_H
-#define __LINUX_USB_SERIAL_IPAQ_H
-
-/*
- * Since we can't queue our bulk write urbs (don't know why - it just
- * doesn't work), we can send down only one write urb at a time. The simplistic
- * approach taken by the generic usbserial driver will work, but it's not good
- * for performance. Therefore, we buffer upto URBDATA_QUEUE_MAX bytes of write
- * requests coming from the line discipline. This is done by chaining them
- * in lists of struct ipaq_packet, each packet holding a maximum of
- * PACKET_SIZE bytes.
- *
- * ipaq_write() can be called from bottom half context; hence we can't
- * allocate memory for packets there. So we initialize a pool of packets at
- * the first open and maintain a freelist.
- *
- * The value of PACKET_SIZE was empirically determined by
- * checking the maximum write sizes sent down by the ppp ldisc.
- * URBDATA_QUEUE_MAX is set to 64K, which is the maximum TCP window size.
- */
-
-struct ipaq_packet {
- char *data;
- size_t len;
- size_t written;
- struct list_head list;
-};
-
-struct ipaq_private {
- int active;
- int queue_len;
- int free_len;
- struct list_head queue;
- struct list_head freelist;
-};
-
-#define URBDATA_SIZE 4096
-#define URBDATA_QUEUE_MAX (64 * 1024)
-#define PACKET_SIZE 256
-
-#endif
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index e1d0784..ca77e88 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -34,7 +34,6 @@
* DCD, DTR, RTS, CTS which are currently faked.
* It's good enough for PPP at this point. It's based off all kinds of
* code found in usb/serial and usb/class
- *
*/
#include <linux/kernel.h>
@@ -52,7 +51,7 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v0.3"
+#define DRIVER_VERSION "v0.4"
#define DRIVER_AUTHOR "Roelf Diedericks"
#define DRIVER_DESC "IPWireless tty driver"
@@ -65,8 +64,6 @@
/* Message sizes */
#define EVENT_BUFFER_SIZE 0xFF
#define CHAR2INT16(c1, c0) (((u32)((c1) & 0xff) << 8) + (u32)((c0) & 0xff))
-#define NUM_BULK_URBS 24
-#define NUM_CONTROL_URBS 16
/* vendor/product pairs that are known work with this driver*/
#define IPW_VID 0x0bc3
@@ -151,47 +148,6 @@
static int debug;
-static void ipw_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- unsigned char *data = urb->transfer_buffer;
- struct tty_struct *tty;
- int result;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
-
- tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- tty_insert_flip_string(tty, data, urb->actual_length);
- tty_flip_buffer_push(tty);
- }
- tty_kref_put(tty);
-
- /* Continue trying to always read */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ipw_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- return;
-}
-
static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct usb_device *dev = port->serial->dev;
@@ -229,15 +185,7 @@
/*--2: Start reading from the device */
dbg("%s: setting up bulk read callback", __func__);
- usb_fill_bulk_urb(port->read_urb, dev,
- usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
- port->bulk_in_buffer,
- port->bulk_in_size,
- ipw_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result < 0)
- dbg("%s - usb_submit_urb(read bulk) failed with status %d",
- __func__, result);
+ usb_serial_generic_open(tty, port);
/*--3: Tell the modem to open the floodgates on the rx bulk channel */
dbg("%s:asking modem for RxRead (RXBULK_ON)", __func__);
@@ -267,35 +215,6 @@
dev_err(&port->dev,
"initial flowcontrol failed (error = %d)\n", result);
-
- /*--5: raise the dtr */
- dbg("%s:raising dtr", __func__);
- result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- IPW_SIO_SET_PIN,
- USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
- IPW_PIN_SETDTR,
- 0,
- NULL,
- 0,
- 200000);
- if (result < 0)
- dev_err(&port->dev,
- "setting dtr failed (error = %d)\n", result);
-
- /*--6: raise the rts */
- dbg("%s:raising rts", __func__);
- result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
- IPW_SIO_SET_PIN,
- USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
- IPW_PIN_SETRTS,
- 0,
- NULL,
- 0,
- 200000);
- if (result < 0)
- dev_err(&port->dev,
- "setting dtr failed (error = %d)\n", result);
-
kfree(buf_flow_init);
return 0;
}
@@ -305,8 +224,8 @@
struct usb_device *dev = port->serial->dev;
int result;
- /*--1: drop the dtr */
- dbg("%s:dropping dtr", __func__);
+ dbg("%s: on = %d", __func__, on);
+
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
IPW_SIO_SET_PIN,
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
@@ -316,22 +235,20 @@
0,
200000);
if (result < 0)
- dev_err(&port->dev, "dropping dtr failed (error = %d)\n",
+ dev_err(&port->dev, "setting dtr failed (error = %d)\n",
result);
- /*--2: drop the rts */
- dbg("%s:dropping rts", __func__);
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
IPW_SIO_SET_PIN, USB_TYPE_VENDOR |
- USB_RECIP_INTERFACE | USB_DIR_OUT,
+ USB_RECIP_INTERFACE | USB_DIR_OUT,
on ? IPW_PIN_SETRTS : IPW_PIN_CLRRTS,
0,
NULL,
0,
200000);
if (result < 0)
- dev_err(&port->dev,
- "dropping rts failed (error = %d)\n", result);
+ dev_err(&port->dev, "setting rts failed (error = %d)\n",
+ result);
}
static void ipw_close(struct usb_serial_port *port)
@@ -368,83 +285,7 @@
dev_err(&port->dev,
"Disabling bulk RxRead failed (error = %d)\n", result);
- /* shutdown any in-flight urbs that we know about */
- usb_kill_urb(port->read_urb);
- usb_kill_urb(port->write_urb);
-}
-
-static void ipw_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- int status = urb->status;
-
- dbg("%s", __func__);
-
- port->write_urb_busy = 0;
-
- if (status)
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
-
- usb_serial_port_softint(port);
-}
-
-static int ipw_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct usb_device *dev = port->serial->dev;
- int ret;
-
- dbg("%s: TOP: count=%d, in_interrupt=%ld", __func__,
- count, in_interrupt());
-
- if (count == 0) {
- dbg("%s - write request of 0 bytes", __func__);
- return 0;
- }
-
- spin_lock_bh(&port->lock);
- if (port->write_urb_busy) {
- spin_unlock_bh(&port->lock);
- dbg("%s - already writing", __func__);
- return 0;
- }
- port->write_urb_busy = 1;
- spin_unlock_bh(&port->lock);
-
- count = min(count, port->bulk_out_size);
- memcpy(port->bulk_out_buffer, buf, count);
-
- dbg("%s count now:%d", __func__, count);
-
- usb_fill_bulk_urb(port->write_urb, dev,
- usb_sndbulkpipe(dev, port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer,
- count,
- ipw_write_bulk_callback,
- port);
-
- ret = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (ret != 0) {
- port->write_urb_busy = 0;
- dbg("%s - usb_submit_urb(write bulk) failed with error = %d",
- __func__, ret);
- return ret;
- }
-
- dbg("%s returning %d", __func__, count);
- return count;
-}
-
-static int ipw_probe(struct usb_serial_port *port)
-{
- return 0;
-}
-
-static int ipw_disconnect(struct usb_serial_port *port)
-{
- usb_set_serial_port_data(port, NULL);
- return 0;
+ usb_serial_generic_close(port);
}
static struct usb_serial_driver ipw_device = {
@@ -453,17 +294,12 @@
.name = "ipw",
},
.description = "IPWireless converter",
- .usb_driver = &usb_ipw_driver,
+ .usb_driver = &usb_ipw_driver,
.id_table = usb_ipw_ids,
.num_ports = 1,
.open = ipw_open,
.close = ipw_close,
.dtr_rts = ipw_dtr_rts,
- .port_probe = ipw_probe,
- .port_remove = ipw_disconnect,
- .write = ipw_write,
- .write_bulk_callback = ipw_write_bulk_callback,
- .read_bulk_callback = ipw_read_bulk_callback,
};
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index 4a0f519..ccbce40 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -3,6 +3,7 @@
*
* Copyright (C) 2001-2002 Greg Kroah-Hartman (greg@kroah.com)
* Copyright (C) 2002 Gary Brubaker (xavyer@ix.netcom.com)
+ * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -72,8 +73,8 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v0.4"
-#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
+#define DRIVER_VERSION "v0.5"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Johan Hovold <jhovold@gmail.com>"
#define DRIVER_DESC "USB IR Dongle driver"
static int debug;
@@ -87,11 +88,9 @@
static int ir_startup (struct usb_serial *serial);
static int ir_open(struct tty_struct *tty, struct usb_serial_port *port);
-static void ir_close(struct usb_serial_port *port);
-static int ir_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static void ir_write_bulk_callback (struct urb *urb);
-static void ir_read_bulk_callback (struct urb *urb);
+static int ir_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size);
+static void ir_process_read_urb(struct urb *urb);
static void ir_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios);
@@ -130,10 +129,8 @@
.set_termios = ir_set_termios,
.attach = ir_startup,
.open = ir_open,
- .close = ir_close,
- .write = ir_write,
- .write_bulk_callback = ir_write_bulk_callback,
- .read_bulk_callback = ir_read_bulk_callback,
+ .prepare_write_buffer = ir_prepare_write_buffer,
+ .process_read_urb = ir_process_read_urb,
};
static inline void irda_usb_dump_class_desc(struct usb_irda_cs_descriptor *desc)
@@ -198,7 +195,6 @@
return NULL;
}
-
static u8 ir_xbof_change(u8 xbof)
{
u8 result;
@@ -237,7 +233,6 @@
return(result);
}
-
static int ir_startup(struct usb_serial *serial)
{
struct usb_irda_cs_descriptor *irda_desc;
@@ -297,83 +292,22 @@
static int ir_open(struct tty_struct *tty, struct usb_serial_port *port)
{
- char *buffer;
- int result = 0;
+ int i;
dbg("%s - port %d", __func__, port->number);
- if (buffer_size) {
- /* override the default buffer sizes */
- buffer = kmalloc(buffer_size, GFP_KERNEL);
- if (!buffer) {
- dev_err(&port->dev, "%s - out of memory.\n", __func__);
- return -ENOMEM;
- }
- kfree(port->read_urb->transfer_buffer);
- port->read_urb->transfer_buffer = buffer;
- port->read_urb->transfer_buffer_length = buffer_size;
-
- buffer = kmalloc(buffer_size, GFP_KERNEL);
- if (!buffer) {
- dev_err(&port->dev, "%s - out of memory.\n", __func__);
- return -ENOMEM;
- }
- kfree(port->write_urb->transfer_buffer);
- port->write_urb->transfer_buffer = buffer;
- port->write_urb->transfer_buffer_length = buffer_size;
- port->bulk_out_size = buffer_size;
- }
+ for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i)
+ port->write_urbs[i]->transfer_flags = URB_ZERO_PACKET;
/* Start reading from the device */
- usb_fill_bulk_urb(
- port->read_urb,
- port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ir_read_bulk_callback,
- port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
-
- return result;
+ return usb_serial_generic_open(tty, port);
}
-static void ir_close(struct usb_serial_port *port)
+static int ir_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size)
{
- dbg("%s - port %d", __func__, port->number);
-
- /* shutdown our bulk read */
- usb_kill_urb(port->read_urb);
-}
-
-static int ir_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- unsigned char *transfer_buffer;
- int result;
- int transfer_size;
-
- dbg("%s - port = %d, count = %d", __func__, port->number, count);
-
- if (count == 0)
- return 0;
-
- spin_lock_bh(&port->lock);
- if (port->write_urb_busy) {
- spin_unlock_bh(&port->lock);
- dbg("%s - already writing", __func__);
- return 0;
- }
- port->write_urb_busy = 1;
- spin_unlock_bh(&port->lock);
-
- transfer_buffer = port->write_urb->transfer_buffer;
- transfer_size = min(count, port->bulk_out_size - 1);
+ unsigned char *buf = dest;
+ int count;
/*
* The first byte of the packet we send to the device contains an
@@ -382,119 +316,57 @@
*
* See section 5.4.2.2 of the USB IrDA spec.
*/
- *transfer_buffer = ir_xbof | ir_baud;
- ++transfer_buffer;
+ *buf = ir_xbof | ir_baud;
- memcpy(transfer_buffer, buf, transfer_size);
-
- usb_fill_bulk_urb(
- port->write_urb,
- port->serial->dev,
- usb_sndbulkpipe(port->serial->dev,
- port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer,
- transfer_size + 1,
- ir_write_bulk_callback,
- port);
-
- port->write_urb->transfer_flags = URB_ZERO_PACKET;
-
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result) {
- port->write_urb_busy = 0;
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- } else
- result = transfer_size;
-
- return result;
+ count = kfifo_out_locked(&port->write_fifo, buf + 1, size - 1,
+ &port->lock);
+ return count + 1;
}
-static void ir_write_bulk_callback(struct urb *urb)
+static void ir_process_read_urb(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- port->write_urb_busy = 0;
- if (status) {
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_debug_data(
- debug,
- &port->dev,
- __func__,
- urb->actual_length,
- urb->transfer_buffer);
-
- usb_serial_port_softint(port);
-}
-
-static void ir_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
- int result;
+ struct tty_struct *tty;
+
+ if (!urb->actual_length)
+ return;
+ /*
+ * The first byte of the packet we get from the device
+ * contains a busy indicator and baud rate change.
+ * See section 5.4.1.2 of the USB IrDA spec.
+ */
+ if (*data & 0x0f)
+ ir_baud = *data & 0x0f;
+
+ if (urb->actual_length == 1)
+ return;
+
+ tty = tty_port_tty_get(&port->port);
+ if (!tty)
+ return;
+ tty_insert_flip_string(tty, data + 1, urb->actual_length - 1);
+ tty_flip_buffer_push(tty);
+ tty_kref_put(tty);
+}
+
+static void ir_set_termios_callback(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
int status = urb->status;
dbg("%s - port %d", __func__, port->number);
- switch (status) {
- case 0: /* Successful */
- /*
- * The first byte of the packet we get from the device
- * contains a busy indicator and baud rate change.
- * See section 5.4.1.2 of the USB IrDA spec.
- */
- if ((*data & 0x0f) > 0)
- ir_baud = *data & 0x0f;
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
- tty = tty_port_tty_get(&port->port);
- tty_insert_flip_string(tty, data+1, urb->actual_length - 1);
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
+ kfree(urb->transfer_buffer);
- /*
- * No break here.
- * We want to resubmit the urb so we can read
- * again.
- */
-
- case -EPROTO: /* taking inspiration from pl2303.c */
- /* Continue trying to always read */
- usb_fill_bulk_urb(
- port->read_urb,
- port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- ir_read_bulk_callback,
- port);
-
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- break ;
- default:
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
- break ;
- }
- return;
+ if (status)
+ dbg("%s - non-zero urb status: %d", __func__, status);
}
static void ir_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
+ struct urb *urb;
unsigned char *transfer_buffer;
int result;
speed_t baud;
@@ -548,41 +420,63 @@
else
ir_xbof = ir_xbof_change(xbof) ;
- /* FIXME need to check to see if our write urb is busy right
- * now, or use a urb pool.
- *
- * send the baud change out on an "empty" data packet
- */
- transfer_buffer = port->write_urb->transfer_buffer;
- *transfer_buffer = ir_xbof | ir_baud;
-
- usb_fill_bulk_urb(
- port->write_urb,
- port->serial->dev,
- usb_sndbulkpipe(port->serial->dev,
- port->bulk_out_endpointAddress),
- port->write_urb->transfer_buffer,
- 1,
- ir_write_bulk_callback,
- port);
-
- port->write_urb->transfer_flags = URB_ZERO_PACKET;
-
- result = usb_submit_urb(port->write_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
-
/* Only speed changes are supported */
tty_termios_copy_hw(tty->termios, old_termios);
tty_encode_baud_rate(tty, baud, baud);
+
+ /*
+ * send the baud change out on an "empty" data packet
+ */
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb) {
+ dev_err(&port->dev, "%s - no more urbs\n", __func__);
+ return;
+ }
+ transfer_buffer = kmalloc(1, GFP_KERNEL);
+ if (!transfer_buffer) {
+ dev_err(&port->dev, "%s - out of memory\n", __func__);
+ goto err_buf;
+ }
+
+ *transfer_buffer = ir_xbof | ir_baud;
+
+ usb_fill_bulk_urb(
+ urb,
+ port->serial->dev,
+ usb_sndbulkpipe(port->serial->dev,
+ port->bulk_out_endpointAddress),
+ transfer_buffer,
+ 1,
+ ir_set_termios_callback,
+ port);
+
+ urb->transfer_flags = URB_ZERO_PACKET;
+
+ result = usb_submit_urb(urb, GFP_KERNEL);
+ if (result) {
+ dev_err(&port->dev, "%s - failed to submit urb: %d\n",
+ __func__, result);
+ goto err_subm;
+ }
+
+ usb_free_urb(urb);
+
+ return;
+err_subm:
+ kfree(transfer_buffer);
+err_buf:
+ usb_free_urb(urb);
}
static int __init ir_init(void)
{
int retval;
+ if (buffer_size) {
+ ir_device.bulk_in_size = buffer_size;
+ ir_device.bulk_out_size = buffer_size;
+ }
+
retval = usb_serial_register(&ir_device);
if (retval)
goto failed_usb_serial_register;
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 43f13cf..74551cb 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -1044,34 +1044,6 @@
if (buf == NULL)
return -ENOMEM;
- /* fixup the endpoint buffer size */
- kfree(port->bulk_out_buffer);
- port->bulk_out_buffer = kmalloc(512, GFP_KERNEL);
- port->bulk_out_size = 512;
- kfree(port->bulk_in_buffer);
- port->bulk_in_buffer = kmalloc(512, GFP_KERNEL);
- port->bulk_in_size = 512;
-
- if (!port->bulk_out_buffer || !port->bulk_in_buffer) {
- kfree(port->bulk_out_buffer);
- kfree(port->bulk_in_buffer);
- kfree(buf);
- return -ENOMEM;
- }
-
- usb_fill_bulk_urb(port->write_urb, port->serial->dev,
- usb_sndbulkpipe(port->serial->dev,
- port->bulk_out_endpointAddress),
- port->bulk_out_buffer, 512,
- NULL, NULL);
-
-
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->bulk_in_buffer, 512,
- NULL, NULL);
-
priv->poll = 0;
/* initialize writebuf */
@@ -1277,6 +1249,8 @@
},
.id_table = id_table,
.num_ports = 1,
+ .bulk_in_size = 512,
+ .bulk_out_size = 512,
.port_probe = iuu_create_sysfs_attrs,
.port_remove = iuu_remove_sysfs_attrs,
.open = iuu_open,
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index 8eef91b..cdbe8bf 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -1,6 +1,7 @@
/*
* KLSI KL5KUSB105 chip RS232 converter driver
*
+ * Copyright (C) 2010 Johan Hovold <jhovold@gmail.com>
* Copyright (C) 2001 Utz-Uwe Haus <haus@uuhaus.de>
*
* This program is free software; you can redistribute it and/or modify
@@ -34,17 +35,6 @@
* implement handshaking or decide that we do not support it
*/
-/* History:
- * 0.3a - implemented pools of write URBs
- * 0.3 - alpha version for public testing
- * 0.2 - TIOCMGET works, so autopilot(1) can be used!
- * 0.1 - can be used to do pilot-xfer -p /dev/ttyUSB0 -l
- *
- * The driver skeleton is mainly based on mct_u232.c and various other
- * pieces of code shamelessly copied from the drivers/usb/serial/ directory.
- */
-
-
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
@@ -64,8 +54,8 @@
/*
* Version Information
*/
-#define DRIVER_VERSION "v0.3a"
-#define DRIVER_AUTHOR "Utz-Uwe Haus <haus@uuhaus.de>"
+#define DRIVER_VERSION "v0.4"
+#define DRIVER_AUTHOR "Utz-Uwe Haus <haus@uuhaus.de>, Johan Hovold <jhovold@gmail.com>"
#define DRIVER_DESC "KLSI KL5KUSB105 chipset USB->Serial Converter driver"
@@ -73,23 +63,17 @@
* Function prototypes
*/
static int klsi_105_startup(struct usb_serial *serial);
-static void klsi_105_disconnect(struct usb_serial *serial);
static void klsi_105_release(struct usb_serial *serial);
static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port);
static void klsi_105_close(struct usb_serial_port *port);
-static int klsi_105_write(struct tty_struct *tty,
- struct usb_serial_port *port, const unsigned char *buf, int count);
-static void klsi_105_write_bulk_callback(struct urb *urb);
-static int klsi_105_chars_in_buffer(struct tty_struct *tty);
-static int klsi_105_write_room(struct tty_struct *tty);
-static void klsi_105_read_bulk_callback(struct urb *urb);
static void klsi_105_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
-static void klsi_105_throttle(struct tty_struct *tty);
-static void klsi_105_unthrottle(struct tty_struct *tty);
static int klsi_105_tiocmget(struct tty_struct *tty, struct file *file);
static int klsi_105_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
+static void klsi_105_process_read_urb(struct urb *urb);
+static int klsi_105_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size);
/*
* All of the device info needed for the KLSI converters.
@@ -107,7 +91,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
- .no_dynamic_id = 1,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver kl5kusb105d_device = {
@@ -115,26 +99,23 @@
.owner = THIS_MODULE,
.name = "kl5kusb105d",
},
- .description = "KL5KUSB105D / PalmConnect",
- .usb_driver = &kl5kusb105d_driver,
- .id_table = id_table,
- .num_ports = 1,
- .open = klsi_105_open,
- .close = klsi_105_close,
- .write = klsi_105_write,
- .write_bulk_callback = klsi_105_write_bulk_callback,
- .chars_in_buffer = klsi_105_chars_in_buffer,
- .write_room = klsi_105_write_room,
- .read_bulk_callback = klsi_105_read_bulk_callback,
- .set_termios = klsi_105_set_termios,
- /*.break_ctl = klsi_105_break_ctl,*/
- .tiocmget = klsi_105_tiocmget,
- .tiocmset = klsi_105_tiocmset,
- .attach = klsi_105_startup,
- .disconnect = klsi_105_disconnect,
- .release = klsi_105_release,
- .throttle = klsi_105_throttle,
- .unthrottle = klsi_105_unthrottle,
+ .description = "KL5KUSB105D / PalmConnect",
+ .usb_driver = &kl5kusb105d_driver,
+ .id_table = id_table,
+ .num_ports = 1,
+ .bulk_out_size = 64,
+ .open = klsi_105_open,
+ .close = klsi_105_close,
+ .set_termios = klsi_105_set_termios,
+ /*.break_ctl = klsi_105_break_ctl,*/
+ .tiocmget = klsi_105_tiocmget,
+ .tiocmset = klsi_105_tiocmset,
+ .attach = klsi_105_startup,
+ .release = klsi_105_release,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
+ .process_read_urb = klsi_105_process_read_urb,
+ .prepare_write_buffer = klsi_105_prepare_write_buffer,
};
struct klsi_105_port_settings {
@@ -145,18 +126,11 @@
__u8 unknown2;
} __attribute__ ((packed));
-/* we implement a pool of NUM_URBS urbs per usb_serial */
-#define NUM_URBS 1
-#define URB_TRANSFER_BUFFER_SIZE 64
struct klsi_105_private {
struct klsi_105_port_settings cfg;
struct ktermios termios;
unsigned long line_state; /* modem line settings */
- /* write pool */
- struct urb *write_urb_pool[NUM_URBS];
spinlock_t lock;
- unsigned long bytes_in;
- unsigned long bytes_out;
};
@@ -189,7 +163,7 @@
settings->pktlen, settings->baudrate, settings->databits,
settings->unknown1, settings->unknown2);
return rc;
-} /* klsi_105_chg_port_settings */
+}
/* translate a 16-bit status value from the device to linux's TIO bits */
static unsigned long klsi_105_status2linestate(const __u16 status)
@@ -202,6 +176,7 @@
return res;
}
+
/*
* Read line control via vendor command and return result through
* *line_state_p
@@ -258,7 +233,7 @@
static int klsi_105_startup(struct usb_serial *serial)
{
struct klsi_105_private *priv;
- int i, j;
+ int i;
/* check if we support the product id (see keyspan.c)
* FIXME
@@ -282,29 +257,9 @@
priv->line_state = 0;
- priv->bytes_in = 0;
- priv->bytes_out = 0;
usb_set_serial_port_data(serial->port[i], priv);
spin_lock_init(&priv->lock);
- for (j = 0; j < NUM_URBS; j++) {
- struct urb *urb = usb_alloc_urb(0, GFP_KERNEL);
-
- priv->write_urb_pool[j] = urb;
- if (urb == NULL) {
- dev_err(&serial->dev->dev, "No more urbs???\n");
- goto err_cleanup;
- }
-
- urb->transfer_buffer =
- kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
- if (!urb->transfer_buffer) {
- dev_err(&serial->dev->dev,
- "%s - out of memory for urb buffers.\n",
- __func__);
- goto err_cleanup;
- }
- }
/* priv->termios is left uninitalized until port opening */
init_waitqueue_head(&serial->port[i]->write_wait);
@@ -315,44 +270,11 @@
err_cleanup:
for (; i >= 0; i--) {
priv = usb_get_serial_port_data(serial->port[i]);
- for (j = 0; j < NUM_URBS; j++) {
- if (priv->write_urb_pool[j]) {
- kfree(priv->write_urb_pool[j]->transfer_buffer);
- usb_free_urb(priv->write_urb_pool[j]);
- }
- }
+ kfree(priv);
usb_set_serial_port_data(serial->port[i], NULL);
}
return -ENOMEM;
-} /* klsi_105_startup */
-
-
-static void klsi_105_disconnect(struct usb_serial *serial)
-{
- int i;
-
- dbg("%s", __func__);
-
- /* stop reads and writes on all ports */
- for (i = 0; i < serial->num_ports; ++i) {
- struct klsi_105_private *priv =
- usb_get_serial_port_data(serial->port[i]);
-
- if (priv) {
- /* kill our write urb pool */
- int j;
- struct urb **write_urbs = priv->write_urb_pool;
-
- for (j = 0; j < NUM_URBS; j++) {
- if (write_urbs[j]) {
- usb_kill_urb(write_urbs[j]);
- usb_free_urb(write_urbs[j]);
- }
- }
- }
- }
-} /* klsi_105_disconnect */
-
+}
static void klsi_105_release(struct usb_serial *serial)
{
@@ -360,13 +282,9 @@
dbg("%s", __func__);
- for (i = 0; i < serial->num_ports; ++i) {
- struct klsi_105_private *priv =
- usb_get_serial_port_data(serial->port[i]);
-
- kfree(priv);
- }
-} /* klsi_105_release */
+ for (i = 0; i < serial->num_ports; ++i)
+ kfree(usb_get_serial_port_data(serial->port[i]));
+}
static int klsi_105_open(struct tty_struct *tty, struct usb_serial_port *port)
{
@@ -416,18 +334,8 @@
spin_unlock_irqrestore(&priv->lock, flags);
/* READ_ON and urb submission */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- klsi_105_read_bulk_callback,
- port);
-
- rc = usb_submit_urb(port->read_urb, GFP_KERNEL);
+ rc = usb_serial_generic_open(tty, port);
if (rc) {
- dev_err(&port->dev, "%s - failed submitting read urb, "
- "error %d\n", __func__, rc);
retval = rc;
goto exit;
}
@@ -460,12 +368,10 @@
exit:
kfree(cfg);
return retval;
-} /* klsi_105_open */
-
+}
static void klsi_105_close(struct usb_serial_port *port)
{
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
int rc;
dbg("%s port %d", __func__, port->number);
@@ -488,239 +394,62 @@
mutex_unlock(&port->serial->disc_mutex);
/* shutdown our bulk reads and writes */
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
- /* unlink our write pool */
- /* FIXME */
+ usb_serial_generic_close(port);
+
/* wgg - do I need this? I think so. */
usb_kill_urb(port->interrupt_in_urb);
- dev_info(&port->serial->dev->dev,
- "port stats: %ld bytes in, %ld bytes out\n",
- priv->bytes_in, priv->bytes_out);
-} /* klsi_105_close */
-
+}
/* We need to write a complete 64-byte data block and encode the
* number actually sent in the first double-byte, LSB-order. That
* leaves at most 62 bytes of payload.
*/
-#define KLSI_105_DATA_OFFSET 2 /* in the bulk urb data block */
-
-
-static int klsi_105_write(struct tty_struct *tty,
- struct usb_serial_port *port, const unsigned char *buf, int count)
+#define KLSI_HDR_LEN 2
+static int klsi_105_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size)
{
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
- int result, size;
- int bytes_sent = 0;
+ unsigned char *buf = dest;
+ int count;
- dbg("%s - port %d", __func__, port->number);
+ count = kfifo_out_locked(&port->write_fifo, buf + KLSI_HDR_LEN, size,
+ &port->lock);
+ put_unaligned_le16(count, buf);
- while (count > 0) {
- /* try to find a free urb (write 0 bytes if none) */
- struct urb *urb = NULL;
- unsigned long flags;
- int i;
- /* since the pool is per-port we might not need
- the spin lock !? */
- spin_lock_irqsave(&priv->lock, flags);
- for (i = 0; i < NUM_URBS; i++) {
- if (priv->write_urb_pool[i]->status != -EINPROGRESS) {
- urb = priv->write_urb_pool[i];
- dbg("%s - using pool URB %d", __func__, i);
- break;
- }
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (urb == NULL) {
- dbg("%s - no more free urbs", __func__);
- goto exit;
- }
-
- if (urb->transfer_buffer == NULL) {
- urb->transfer_buffer =
- kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_ATOMIC);
- if (urb->transfer_buffer == NULL) {
- dev_err(&port->dev,
- "%s - no more kernel memory...\n",
- __func__);
- goto exit;
- }
- }
-
- size = min(count, port->bulk_out_size - KLSI_105_DATA_OFFSET);
- size = min(size, URB_TRANSFER_BUFFER_SIZE -
- KLSI_105_DATA_OFFSET);
-
- memcpy(urb->transfer_buffer + KLSI_105_DATA_OFFSET, buf, size);
-
- /* write payload size into transfer buffer */
- ((__u8 *)urb->transfer_buffer)[0] = (__u8) (size & 0xFF);
- ((__u8 *)urb->transfer_buffer)[1] = (__u8) ((size & 0xFF00)>>8);
-
- /* set up our urb */
- usb_fill_bulk_urb(urb, port->serial->dev,
- usb_sndbulkpipe(port->serial->dev,
- port->bulk_out_endpointAddress),
- urb->transfer_buffer,
- URB_TRANSFER_BUFFER_SIZE,
- klsi_105_write_bulk_callback,
- port);
-
- /* send the data out the bulk port */
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result) {
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- goto exit;
- }
- buf += size;
- bytes_sent += size;
- count -= size;
- }
-exit:
- /* lockless, but it's for debug info only... */
- priv->bytes_out += bytes_sent;
-
- return bytes_sent; /* that's how much we wrote */
-} /* klsi_105_write */
-
-static void klsi_105_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero write bulk status received: %d", __func__,
- status);
- return;
- }
-
- usb_serial_port_softint(port);
-} /* klsi_105_write_bulk_completion_callback */
-
-
-/* return number of characters currently in the writing process */
-static int klsi_105_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- int chars = 0;
- int i;
- unsigned long flags;
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- for (i = 0; i < NUM_URBS; ++i) {
- if (priv->write_urb_pool[i]->status == -EINPROGRESS)
- chars += URB_TRANSFER_BUFFER_SIZE;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- dbg("%s - returns %d", __func__, chars);
- return chars;
+ return count + KLSI_HDR_LEN;
}
-static int klsi_105_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- unsigned long flags;
- int i;
- int room = 0;
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
-
- spin_lock_irqsave(&priv->lock, flags);
- for (i = 0; i < NUM_URBS; ++i) {
- if (priv->write_urb_pool[i]->status != -EINPROGRESS)
- room += URB_TRANSFER_BUFFER_SIZE;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- dbg("%s - returns %d", __func__, room);
- return room;
-}
-
-
-
-static void klsi_105_read_bulk_callback(struct urb *urb)
+/* The data received is preceded by a length double-byte in LSB-first order.
+ */
+static void klsi_105_process_read_urb(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
- struct klsi_105_private *priv = usb_get_serial_port_data(port);
- struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
- int rc;
- int status = urb->status;
+ struct tty_struct *tty;
+ unsigned len;
- dbg("%s - port %d", __func__, port->number);
+ /* empty urbs seem to happen, we ignore them */
+ if (!urb->actual_length)
+ return;
- /* The urb might have been killed. */
- if (status) {
- dbg("%s - nonzero read bulk status received: %d", __func__,
- status);
+ if (urb->actual_length <= KLSI_HDR_LEN) {
+ dbg("%s - malformed packet", __func__);
return;
}
- /* The data received is again preceded by a length double-byte in LSB-
- * first order (see klsi_105_write() )
- */
- if (urb->actual_length == 0) {
- /* empty urbs seem to happen, we ignore them */
- /* dbg("%s - emtpy URB", __func__); */
- ;
- } else if (urb->actual_length <= 2) {
- dbg("%s - size %d URB not understood", __func__,
- urb->actual_length);
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
- } else {
- int bytes_sent = ((__u8 *) data)[0] +
- ((unsigned int) ((__u8 *) data)[1] << 8);
- tty = tty_port_tty_get(&port->port);
- /* we should immediately resubmit the URB, before attempting
- * to pass the data on to the tty layer. But that needs locking
- * against re-entry an then mixed-up data because of
- * intermixed tty_flip_buffer_push()s
- * FIXME
- */
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
+ tty = tty_port_tty_get(&port->port);
+ if (!tty)
+ return;
- if (bytes_sent + 2 > urb->actual_length) {
- dbg("%s - trying to read more data than available"
- " (%d vs. %d)", __func__,
- bytes_sent+2, urb->actual_length);
- /* cap at implied limit */
- bytes_sent = urb->actual_length - 2;
- }
-
- tty_insert_flip_string(tty, data + 2, bytes_sent);
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
-
- /* again lockless, but debug info only */
- priv->bytes_in += bytes_sent;
+ len = get_unaligned_le16(data);
+ if (len > urb->actual_length - KLSI_HDR_LEN) {
+ dbg("%s - packet length mismatch", __func__);
+ len = urb->actual_length - KLSI_HDR_LEN;
}
- /* Continue trying to always read */
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- klsi_105_read_bulk_callback,
- port);
- rc = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (rc)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, rc);
-} /* klsi_105_read_bulk_callback */
+ tty_insert_flip_string(tty, data + KLSI_HDR_LEN, len);
+ tty_flip_buffer_push(tty);
+ tty_kref_put(tty);
+}
static void klsi_105_set_termios(struct tty_struct *tty,
struct usb_serial_port *port,
@@ -887,8 +616,7 @@
klsi_105_chg_port_settings(port, cfg);
err:
kfree(cfg);
-} /* klsi_105_set_termios */
-
+}
#if 0
static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
@@ -906,7 +634,7 @@
lcr |= MCT_U232_SET_BREAK;
mct_u232_set_line_ctrl(serial, lcr);
-} /* mct_u232_break_ctl */
+}
#endif
static int klsi_105_tiocmget(struct tty_struct *tty, struct file *file)
@@ -962,29 +690,6 @@
return retval;
}
-static void klsi_105_throttle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- dbg("%s - port %d", __func__, port->number);
- usb_kill_urb(port->read_urb);
-}
-
-static void klsi_105_unthrottle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- int result;
-
- dbg("%s - port %d", __func__, port->number);
-
- port->read_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
-}
-
-
static int __init klsi_105_init(void)
{
@@ -1005,7 +710,6 @@
return retval;
}
-
static void __exit klsi_105_exit(void)
{
usb_deregister(&kl5kusb105d_driver);
@@ -1023,5 +727,3 @@
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "enable extensive debugging messages");
-
-/* vim: set sts=8 ts=8 sw=8: */
diff --git a/drivers/usb/serial/kl5kusb105.h b/drivers/usb/serial/kl5kusb105.h
index 1231d9e..22a90ba 100644
--- a/drivers/usb/serial/kl5kusb105.h
+++ b/drivers/usb/serial/kl5kusb105.h
@@ -17,16 +17,16 @@
/* baud rates */
enum {
- kl5kusb105a_sio_b115200 = 0,
- kl5kusb105a_sio_b57600 = 1,
- kl5kusb105a_sio_b38400 = 2,
- kl5kusb105a_sio_b19200 = 4,
- kl5kusb105a_sio_b14400 = 5,
- kl5kusb105a_sio_b9600 = 6,
- kl5kusb105a_sio_b4800 = 8, /* unchecked */
- kl5kusb105a_sio_b2400 = 9, /* unchecked */
- kl5kusb105a_sio_b1200 = 0xa, /* unchecked */
- kl5kusb105a_sio_b600 = 0xb /* unchecked */
+ kl5kusb105a_sio_b115200 = 0,
+ kl5kusb105a_sio_b57600 = 1,
+ kl5kusb105a_sio_b38400 = 2,
+ kl5kusb105a_sio_b19200 = 4,
+ kl5kusb105a_sio_b14400 = 5,
+ kl5kusb105a_sio_b9600 = 6,
+ kl5kusb105a_sio_b4800 = 8, /* unchecked */
+ kl5kusb105a_sio_b2400 = 9, /* unchecked */
+ kl5kusb105a_sio_b1200 = 0xa, /* unchecked */
+ kl5kusb105a_sio_b600 = 0xb /* unchecked */
};
/* data bits */
@@ -53,17 +53,16 @@
#define KL5KUSB105A_CTS ((1<<5) | (1<<4))
#define KL5KUSB105A_WANTS_TO_SEND 0x30
-//#define KL5KUSB105A_DTR /* Data Terminal Ready */
-//#define KL5KUSB105A_CTS /* Clear To Send */
-//#define KL5KUSB105A_CD /* Carrier Detect */
-//#define KL5KUSB105A_DSR /* Data Set Ready */
-//#define KL5KUSB105A_RxD /* Receive pin */
+#if 0
+#define KL5KUSB105A_DTR /* Data Terminal Ready */
+#define KL5KUSB105A_CTS /* Clear To Send */
+#define KL5KUSB105A_CD /* Carrier Detect */
+#define KL5KUSB105A_DSR /* Data Set Ready */
+#define KL5KUSB105A_RxD /* Receive pin */
-//#define KL5KUSB105A_LE
-//#define KL5KUSB105A_RTS
-//#define KL5KUSB105A_ST
-//#define KL5KUSB105A_SR
-//#define KL5KUSB105A_RI /* Ring Indicator */
-
-/* vim: set ts=8 sts=8: */
-
+#define KL5KUSB105A_LE
+#define KL5KUSB105A_RTS
+#define KL5KUSB105A_ST
+#define KL5KUSB105A_SR
+#define KL5KUSB105A_RI /* Ring Indicator */
+#endif
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index c113a2a..bd5bd85 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -345,7 +345,8 @@
/* FIXME: Add rts/dtr methods */
if (port->write_urb) {
- usb_kill_urb(port->write_urb);
+ usb_poison_urb(port->write_urb);
+ kfree(port->write_urb->transfer_buffer);
usb_free_urb(port->write_urb);
port->write_urb = NULL;
}
diff --git a/drivers/usb/serial/kobil_sct.h b/drivers/usb/serial/kobil_sct.h
index a51fbb5..be207f7 100644
--- a/drivers/usb/serial/kobil_sct.h
+++ b/drivers/usb/serial/kobil_sct.h
@@ -23,38 +23,55 @@
#define SUSBCR_SSL_SETDTR 0x0004
#define SUSBCR_SSL_CLRDTR 0x0010
-#define SUSBCR_SSL_PURGE_TXABORT 0x0100 // Kill the pending/current writes to the comm port.
-#define SUSBCR_SSL_PURGE_RXABORT 0x0200 // Kill the pending/current reads to the comm port.
-#define SUSBCR_SSL_PURGE_TXCLEAR 0x0400 // Kill the transmit queue if there.
-#define SUSBCR_SSL_PURGE_RXCLEAR 0x0800 // Kill the typeahead buffer if there.
+/* Kill the pending/current writes to the comm port. */
+#define SUSBCR_SSL_PURGE_TXABORT 0x0100
+/* Kill the pending/current reads to the comm port. */
+#define SUSBCR_SSL_PURGE_RXABORT 0x0200
+/* Kill the transmit queue if there. */
+#define SUSBCR_SSL_PURGE_TXCLEAR 0x0400
+/* Kill the typeahead buffer if there. */
+#define SUSBCR_SSL_PURGE_RXCLEAR 0x0800
#define SUSBCRequest_GetStatusLineState 4
-#define SUSBCR_GSL_RXCHAR 0x0001 // Any Character received
-#define SUSBCR_GSL_TXEMPTY 0x0004 // Transmitt Queue Empty
-#define SUSBCR_GSL_CTS 0x0008 // CTS changed state
-#define SUSBCR_GSL_DSR 0x0010 // DSR changed state
-#define SUSBCR_GSL_RLSD 0x0020 // RLSD changed state
-#define SUSBCR_GSL_BREAK 0x0040 // BREAK received
-#define SUSBCR_GSL_ERR 0x0080 // Line status error occurred
-#define SUSBCR_GSL_RING 0x0100 // Ring signal detected
+/* Any Character received */
+#define SUSBCR_GSL_RXCHAR 0x0001
+/* Transmitt Queue Empty */
+#define SUSBCR_GSL_TXEMPTY 0x0004
+/* CTS changed state */
+#define SUSBCR_GSL_CTS 0x0008
+/* DSR changed state */
+#define SUSBCR_GSL_DSR 0x0010
+/* RLSD changed state */
+#define SUSBCR_GSL_RLSD 0x0020
+/* BREAK received */
+#define SUSBCR_GSL_BREAK 0x0040
+/* Line status error occurred */
+#define SUSBCR_GSL_ERR 0x0080
+/* Ring signal detected */
+#define SUSBCR_GSL_RING 0x0100
#define SUSBCRequest_Misc 8
-#define SUSBCR_MSC_ResetReader 0x0001 // use a predefined reset sequence
-#define SUSBCR_MSC_ResetAllQueues 0x0002 // use a predefined sequence to reset the internal queues
+/* use a predefined reset sequence */
+#define SUSBCR_MSC_ResetReader 0x0001
+/* use a predefined sequence to reset the internal queues */
+#define SUSBCR_MSC_ResetAllQueues 0x0002
#define SUSBCRequest_GetMisc 0x10
-#define SUSBCR_MSC_GetFWVersion 0x0001 /* get the firmware version from device,
- coded like this 0xHHLLBBPP
- with HH = Firmware Version High Byte
- LL = Firmware Version Low Byte
- BB = Build Number
- PP = Further Attributes
- */
-#define SUSBCR_MSC_GetHWVersion 0x0002 /* get the hardware version from device
- coded like this 0xHHLLPPRR
- with HH = Software Version High Byte
- LL = Software Version Low Byte
- PP = Further Attributes
- RR = Reserved for the hardware ID
- */
+/*
+ * get the firmware version from device, coded like this 0xHHLLBBPP with
+ * HH = Firmware Version High Byte
+ * LL = Firmware Version Low Byte
+ * BB = Build Number
+ * PP = Further Attributes
+ */
+#define SUSBCR_MSC_GetFWVersion 0x0001
+
+/*
+ * get the hardware version from device coded like this 0xHHLLPPRR with
+ * HH = Software Version High Byte
+ * LL = Software Version Low Byte
+ * PP = Further Attributes
+ * RR = Reserved for the hardware ID
+ */
+#define SUSBCR_MSC_GetHWVersion 0x0002
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 2849f8c..7aa01b9 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -549,12 +549,9 @@
{
dbg("%s port %d", __func__, port->number);
- if (port->serial->dev) {
- /* shutdown our urbs */
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
+ if (port->serial->dev)
usb_kill_urb(port->interrupt_in_urb);
- }
} /* mct_u232_close */
diff --git a/drivers/usb/serial/mct_u232.h b/drivers/usb/serial/mct_u232.h
index 7417d5c..3a3f5e6 100644
--- a/drivers/usb/serial/mct_u232.h
+++ b/drivers/usb/serial/mct_u232.h
@@ -42,36 +42,44 @@
#define MCT_U232_SET_REQUEST_TYPE 0x40
#define MCT_U232_GET_REQUEST_TYPE 0xc0
-#define MCT_U232_GET_MODEM_STAT_REQUEST 2 /* Get Modem Status Register (MSR) */
-#define MCT_U232_GET_MODEM_STAT_SIZE 1
+/* Get Modem Status Register (MSR) */
+#define MCT_U232_GET_MODEM_STAT_REQUEST 2
+#define MCT_U232_GET_MODEM_STAT_SIZE 1
-#define MCT_U232_GET_LINE_CTRL_REQUEST 6 /* Get Line Control Register (LCR) */
-#define MCT_U232_GET_LINE_CTRL_SIZE 1 /* ... not used by this driver */
+/* Get Line Control Register (LCR) */
+/* ... not used by this driver */
+#define MCT_U232_GET_LINE_CTRL_REQUEST 6
+#define MCT_U232_GET_LINE_CTRL_SIZE 1
-#define MCT_U232_SET_BAUD_RATE_REQUEST 5 /* Set Baud Rate Divisor */
-#define MCT_U232_SET_BAUD_RATE_SIZE 4
+/* Set Baud Rate Divisor */
+#define MCT_U232_SET_BAUD_RATE_REQUEST 5
+#define MCT_U232_SET_BAUD_RATE_SIZE 4
-#define MCT_U232_SET_LINE_CTRL_REQUEST 7 /* Set Line Control Register (LCR) */
-#define MCT_U232_SET_LINE_CTRL_SIZE 1
+/* Set Line Control Register (LCR) */
+#define MCT_U232_SET_LINE_CTRL_REQUEST 7
+#define MCT_U232_SET_LINE_CTRL_SIZE 1
-#define MCT_U232_SET_MODEM_CTRL_REQUEST 10 /* Set Modem Control Register (MCR) */
-#define MCT_U232_SET_MODEM_CTRL_SIZE 1
+/* Set Modem Control Register (MCR) */
+#define MCT_U232_SET_MODEM_CTRL_REQUEST 10
+#define MCT_U232_SET_MODEM_CTRL_SIZE 1
-/* This USB device request code is not well understood. It is transmitted by
- the MCT-supplied Windows driver whenever the baud rate changes.
-*/
-#define MCT_U232_SET_UNKNOWN1_REQUEST 11 /* Unknown functionality */
-#define MCT_U232_SET_UNKNOWN1_SIZE 1
+/*
+ * This USB device request code is not well understood. It is transmitted by
+ * the MCT-supplied Windows driver whenever the baud rate changes.
+ */
+#define MCT_U232_SET_UNKNOWN1_REQUEST 11 /* Unknown functionality */
+#define MCT_U232_SET_UNKNOWN1_SIZE 1
-/* This USB device request code appears to control whether CTS is required
- during transmission.
-
- Sending a zero byte allows data transmission to a device which is not
- asserting CTS. Sending a '1' byte will cause transmission to be deferred
- until the device asserts CTS.
-*/
-#define MCT_U232_SET_CTS_REQUEST 12
-#define MCT_U232_SET_CTS_SIZE 1
+/*
+ * This USB device request code appears to control whether CTS is required
+ * during transmission.
+ *
+ * Sending a zero byte allows data transmission to a device which is not
+ * asserting CTS. Sending a '1' byte will cause transmission to be deferred
+ * until the device asserts CTS.
+ */
+#define MCT_U232_SET_CTS_REQUEST 12
+#define MCT_U232_SET_CTS_SIZE 1
#define MCT_U232_MAX_SIZE 4 /* of MCT_XXX_SIZE */
@@ -81,7 +89,8 @@
* and "Intel solution". They are the regular MCT and "Sitecom" for us.
* This is pointless to document in the header, see the code for the bits.
*/
-static int mct_u232_calculate_baud_rate(struct usb_serial *serial, speed_t value, speed_t *result);
+static int mct_u232_calculate_baud_rate(struct usb_serial *serial,
+ speed_t value, speed_t *result);
/*
* Line Control Register (LCR)
@@ -125,16 +134,16 @@
/*
* Line Status Register (LSR)
*/
-#define MCT_U232_LSR_INDEX 1 /* data[index] */
-#define MCT_U232_LSR_ERR 0x80 /* OE | PE | FE | BI */
-#define MCT_U232_LSR_TEMT 0x40 /* transmit register empty */
-#define MCT_U232_LSR_THRE 0x20 /* transmit holding register empty */
-#define MCT_U232_LSR_BI 0x10 /* break indicator */
-#define MCT_U232_LSR_FE 0x08 /* framing error */
-#define MCT_U232_LSR_OE 0x02 /* overrun error */
-#define MCT_U232_LSR_PE 0x04 /* parity error */
-#define MCT_U232_LSR_OE 0x02 /* overrun error */
-#define MCT_U232_LSR_DR 0x01 /* receive data ready */
+#define MCT_U232_LSR_INDEX 1 /* data[index] */
+#define MCT_U232_LSR_ERR 0x80 /* OE | PE | FE | BI */
+#define MCT_U232_LSR_TEMT 0x40 /* transmit register empty */
+#define MCT_U232_LSR_THRE 0x20 /* transmit holding register empty */
+#define MCT_U232_LSR_BI 0x10 /* break indicator */
+#define MCT_U232_LSR_FE 0x08 /* framing error */
+#define MCT_U232_LSR_OE 0x02 /* overrun error */
+#define MCT_U232_LSR_PE 0x04 /* parity error */
+#define MCT_U232_LSR_OE 0x02 /* overrun error */
+#define MCT_U232_LSR_DR 0x01 /* receive data ready */
/* -----------------------------------------------------------------------------
@@ -143,10 +152,10 @@
*
* The technical details of the device have been acquired be using "SniffUSB"
* and the vendor-supplied device driver (version 2.3A) under Windows98. To
- * identify the USB vendor-specific requests and to assign them to terminal
+ * identify the USB vendor-specific requests and to assign them to terminal
* settings (flow control, baud rate, etc.) the program "SerialSettings" from
* William G. Greathouse has been proven to be very useful. I also used the
- * Win98 "HyperTerminal" and "usb-robot" on Linux for testing. The results and
+ * Win98 "HyperTerminal" and "usb-robot" on Linux for testing. The results and
* observations are summarized below:
*
* The USB requests seem to be directly mapped to the registers of a 8250,
@@ -186,33 +195,33 @@
* Data: LCR (see below)
*
* Bit 7: Divisor Latch Access Bit (DLAB). When set, access to the data
- * transmit/receive register (THR/RBR) and the Interrupt Enable Register
- * (IER) is disabled. Any access to these ports is now redirected to the
- * Divisor Latch Registers. Setting this bit, loading the Divisor
- * Registers, and clearing DLAB should be done with interrupts disabled.
+ * transmit/receive register (THR/RBR) and the Interrupt Enable Register
+ * (IER) is disabled. Any access to these ports is now redirected to the
+ * Divisor Latch Registers. Setting this bit, loading the Divisor
+ * Registers, and clearing DLAB should be done with interrupts disabled.
* Bit 6: Set Break. When set to "1", the transmitter begins to transmit
- * continuous Spacing until this bit is set to "0". This overrides any
- * bits of characters that are being transmitted.
+ * continuous Spacing until this bit is set to "0". This overrides any
+ * bits of characters that are being transmitted.
* Bit 5: Stick Parity. When parity is enabled, setting this bit causes parity
- * to always be "1" or "0", based on the value of Bit 4.
+ * to always be "1" or "0", based on the value of Bit 4.
* Bit 4: Even Parity Select (EPS). When parity is enabled and Bit 5 is "0",
- * setting this bit causes even parity to be transmitted and expected.
- * Otherwise, odd parity is used.
+ * setting this bit causes even parity to be transmitted and expected.
+ * Otherwise, odd parity is used.
* Bit 3: Parity Enable (PEN). When set to "1", a parity bit is inserted
- * between the last bit of the data and the Stop Bit. The UART will also
- * expect parity to be present in the received data.
+ * between the last bit of the data and the Stop Bit. The UART will also
+ * expect parity to be present in the received data.
* Bit 2: Number of Stop Bits (STB). If set to "1" and using 5-bit data words,
- * 1.5 Stop Bits are transmitted and expected in each data word. For
- * 6, 7 and 8-bit data words, 2 Stop Bits are transmitted and expected.
- * When this bit is set to "0", one Stop Bit is used on each data word.
+ * 1.5 Stop Bits are transmitted and expected in each data word. For
+ * 6, 7 and 8-bit data words, 2 Stop Bits are transmitted and expected.
+ * When this bit is set to "0", one Stop Bit is used on each data word.
* Bit 1: Word Length Select Bit #1 (WLSB1)
* Bit 0: Word Length Select Bit #0 (WLSB0)
- * Together these bits specify the number of bits in each data word.
- * 1 0 Word Length
- * 0 0 5 Data Bits
- * 0 1 6 Data Bits
- * 1 0 7 Data Bits
- * 1 1 8 Data Bits
+ * Together these bits specify the number of bits in each data word.
+ * 1 0 Word Length
+ * 0 0 5 Data Bits
+ * 0 1 6 Data Bits
+ * 1 0 7 Data Bits
+ * 1 1 8 Data Bits
*
* SniffUSB observations: Bit 7 seems not to be used. There seem to be two bugs
* in the Win98 driver: the break does not work (bit 6 is not asserted) and the
@@ -234,20 +243,20 @@
* Bit 6: Reserved, always 0.
* Bit 5: Reserved, always 0.
* Bit 4: Loop-Back Enable. When set to "1", the UART transmitter and receiver
- * are internally connected together to allow diagnostic operations. In
- * addition, the UART modem control outputs are connected to the UART
- * modem control inputs. CTS is connected to RTS, DTR is connected to
- * DSR, OUT1 is connected to RI, and OUT 2 is connected to DCD.
+ * are internally connected together to allow diagnostic operations. In
+ * addition, the UART modem control outputs are connected to the UART
+ * modem control inputs. CTS is connected to RTS, DTR is connected to
+ * DSR, OUT1 is connected to RI, and OUT 2 is connected to DCD.
* Bit 3: OUT 2. An auxiliary output that the host processor may set high or
- * low. In the IBM PC serial adapter (and most clones), OUT 2 is used
- * to tri-state (disable) the interrupt signal from the
- * 8250/16450/16550 UART.
+ * low. In the IBM PC serial adapter (and most clones), OUT 2 is used
+ * to tri-state (disable) the interrupt signal from the
+ * 8250/16450/16550 UART.
* Bit 2: OUT 1. An auxiliary output that the host processor may set high or
- * low. This output is not used on the IBM PC serial adapter.
+ * low. This output is not used on the IBM PC serial adapter.
* Bit 1: Request to Send (RTS). When set to "1", the output of the UART -RTS
- * line is Low (Active).
+ * line is Low (Active).
* Bit 0: Data Terminal Ready (DTR). When set to "1", the output of the UART
- * -DTR line is Low (Active).
+ * -DTR line is Low (Active).
*
* SniffUSB observations: Bit 2 and 4 seem not to be used but bit 3 has been
* seen _always_ set.
@@ -264,22 +273,22 @@
* Data: MSR (see below)
*
* Bit 7: Data Carrier Detect (CD). Reflects the state of the DCD line on the
- * UART.
+ * UART.
* Bit 6: Ring Indicator (RI). Reflects the state of the RI line on the UART.
* Bit 5: Data Set Ready (DSR). Reflects the state of the DSR line on the UART.
* Bit 4: Clear To Send (CTS). Reflects the state of the CTS line on the UART.
* Bit 3: Delta Data Carrier Detect (DDCD). Set to "1" if the -DCD line has
- * changed state one more more times since the last time the MSR was
- * read by the host.
+ * changed state one more more times since the last time the MSR was
+ * read by the host.
* Bit 2: Trailing Edge Ring Indicator (TERI). Set to "1" if the -RI line has
- * had a low to high transition since the last time the MSR was read by
- * the host.
+ * had a low to high transition since the last time the MSR was read by
+ * the host.
* Bit 1: Delta Data Set Ready (DDSR). Set to "1" if the -DSR line has changed
- * state one more more times since the last time the MSR was read by the
- * host.
+ * state one more more times since the last time the MSR was read by the
+ * host.
* Bit 0: Delta Clear To Send (DCTS). Set to "1" if the -CTS line has changed
- * state one more times since the last time the MSR was read by the
- * host.
+ * state one more times since the last time the MSR was read by the
+ * host.
*
* SniffUSB observations: the MSR is also returned as first byte on the
* interrupt-in endpoint 0x83 to signal changes of modem status lines. The USB
@@ -290,31 +299,34 @@
* --------------------------
*
* Bit 7 Error in Receiver FIFO. On the 8250/16450 UART, this bit is zero.
- * This bit is set to "1" when any of the bytes in the FIFO have one or
- * more of the following error conditions: PE, FE, or BI.
+ * This bit is set to "1" when any of the bytes in the FIFO have one
+ * or more of the following error conditions: PE, FE, or BI.
* Bit 6 Transmitter Empty (TEMT). When set to "1", there are no words
- * remaining in the transmit FIFO or the transmit shift register. The
- * transmitter is completely idle.
- * Bit 5 Transmitter Holding Register Empty (THRE). When set to "1", the FIFO
- * (or holding register) now has room for at least one additional word
- * to transmit. The transmitter may still be transmitting when this bit
- * is set to "1".
+ * remaining in the transmit FIFO or the transmit shift register. The
+ * transmitter is completely idle.
+ * Bit 5 Transmitter Holding Register Empty (THRE). When set to "1", the
+ * FIFO (or holding register) now has room for at least one additional
+ * word to transmit. The transmitter may still be transmitting when
+ * this bit is set to "1".
* Bit 4 Break Interrupt (BI). The receiver has detected a Break signal.
- * Bit 3 Framing Error (FE). A Start Bit was detected but the Stop Bit did not
- * appear at the expected time. The received word is probably garbled.
- * Bit 2 Parity Error (PE). The parity bit was incorrect for the word received.
- * Bit 1 Overrun Error (OE). A new word was received and there was no room in
- * the receive buffer. The newly-arrived word in the shift register is
- * discarded. On 8250/16450 UARTs, the word in the holding register is
- * discarded and the newly- arrived word is put in the holding register.
+ * Bit 3 Framing Error (FE). A Start Bit was detected but the Stop Bit did
+ * not appear at the expected time. The received word is probably
+ * garbled.
+ * Bit 2 Parity Error (PE). The parity bit was incorrect for the word
+ * received.
+ * Bit 1 Overrun Error (OE). A new word was received and there was no room
+ * in the receive buffer. The newly-arrived word in the shift register
+ * is discarded. On 8250/16450 UARTs, the word in the holding register
+ * is discarded and the newly- arrived word is put in the holding
+ * register.
* Bit 0 Data Ready (DR). One or more words are in the receive FIFO that the
- * host may read. A word must be completely received and moved from the
- * shift register into the FIFO (or holding register for 8250/16450
- * designs) before this bit is set.
+ * host may read. A word must be completely received and moved from
+ * the shift register into the FIFO (or holding register for
+ * 8250/16450 designs) before this bit is set.
*
- * SniffUSB observations: the LSR is returned as second byte on the interrupt-in
- * endpoint 0x83 to signal error conditions. Such errors have been seen with
- * minicom/zmodem transfers (CRC errors).
+ * SniffUSB observations: the LSR is returned as second byte on the
+ * interrupt-in endpoint 0x83 to signal error conditions. Such errors have
+ * been seen with minicom/zmodem transfers (CRC errors).
*
*
* Unknown #1
@@ -364,16 +376,16 @@
* --------------
*
* SniffUSB observations: the bulk-out endpoint 0x1 and interrupt-in endpoint
- * 0x81 is used to transmit and receive characters. The second interrupt-in
- * endpoint 0x83 signals exceptional conditions like modem line changes and
+ * 0x81 is used to transmit and receive characters. The second interrupt-in
+ * endpoint 0x83 signals exceptional conditions like modem line changes and
* errors. The first byte returned is the MSR and the second byte the LSR.
*
*
* Other observations
* ------------------
*
- * Queued bulk transfers like used in visor.c did not work.
- *
+ * Queued bulk transfers like used in visor.c did not work.
+ *
*
* Properties of the USB device used (as found in /var/log/messages)
* -----------------------------------------------------------------
@@ -411,26 +423,26 @@
* bInterface Class:SubClass:Protocol = 00:00:00
* iInterface = 00
* Endpoint:
- * bLength = 7
- * bDescriptorType = 05
- * bEndpointAddress = 81 (in)
- * bmAttributes = 03 (Interrupt)
- * wMaxPacketSize = 0040
- * bInterval = 02
+ * bLength = 7
+ * bDescriptorType = 05
+ * bEndpointAddress = 81 (in)
+ * bmAttributes = 03 (Interrupt)
+ * wMaxPacketSize = 0040
+ * bInterval = 02
* Endpoint:
- * bLength = 7
- * bDescriptorType = 05
- * bEndpointAddress = 01 (out)
- * bmAttributes = 02 (Bulk)
- * wMaxPacketSize = 0040
- * bInterval = 00
+ * bLength = 7
+ * bDescriptorType = 05
+ * bEndpointAddress = 01 (out)
+ * bmAttributes = 02 (Bulk)
+ * wMaxPacketSize = 0040
+ * bInterval = 00
* Endpoint:
- * bLength = 7
- * bDescriptorType = 05
- * bEndpointAddress = 83 (in)
- * bmAttributes = 03 (Interrupt)
- * wMaxPacketSize = 0002
- * bInterval = 02
+ * bLength = 7
+ * bDescriptorType = 05
+ * bEndpointAddress = 83 (in)
+ * bmAttributes = 03 (Interrupt)
+ * wMaxPacketSize = 0002
+ * bInterval = 02
*
*
* Hardware details (added by Martin Hamilton, 2001/12/06)
@@ -440,7 +452,7 @@
* adaptor, which turns out to simply be a re-badged U232-P9. We
* know this because there is a sticky label on the circuit board
* which says "U232-P9" ;-)
- *
+ *
* The circuit board inside the adaptor contains a Philips PDIUSBD12
* USB endpoint chip and a Philips P87C52UBAA microcontroller with
* embedded UART. Exhaustive documentation for these is available at:
@@ -449,7 +461,7 @@
* http://www.semiconductors.philips.com/pip/pdiusbd12
*
* Thanks to Julian Highfield for the pointer to the Philips database.
- *
+ *
*/
#endif /* __LINUX_USB_SERIAL_MCT_U232_H */
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 0d47f2c..30922a7 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -34,21 +34,18 @@
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/uaccess.h>
-
+#include <linux/parport.h>
/*
* Version Information
*/
-#define DRIVER_VERSION "1.0.0.4F"
+#define DRIVER_VERSION "2.1"
#define DRIVER_AUTHOR "Aspire Communications pvt Ltd."
#define DRIVER_DESC "Moschip USB Serial Driver"
/* default urb timeout */
#define MOS_WDR_TIMEOUT (HZ * 5)
-#define MOS_PORT1 0x0200
-#define MOS_PORT2 0x0300
-#define MOS_VENREG 0x0000
#define MOS_MAX_PORT 0x02
#define MOS_WRITE 0x0E
#define MOS_READ 0x0D
@@ -63,7 +60,7 @@
#define NUM_URBS 16 /* URB Count */
#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
-/* This structure holds all of the local port information */
+/* This structure holds all of the local serial port information */
struct moschip_port {
__u8 shadowLCR; /* last LCR value received */
__u8 shadowMCR; /* last MCR value received */
@@ -74,11 +71,6 @@
struct urb *write_urb_pool[NUM_URBS];
};
-/* This structure holds all of the individual serial device information */
-struct moschip_serial {
- int interrupt_started;
-};
-
static int debug;
static struct usb_serial_driver moschip7720_2port_driver;
@@ -94,6 +86,658 @@
};
MODULE_DEVICE_TABLE(usb, moschip_port_id_table);
+#ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
+
+/* initial values for parport regs */
+#define DCR_INIT_VAL 0x0c /* SLCTIN, nINIT */
+#define ECR_INIT_VAL 0x00 /* SPP mode */
+
+struct urbtracker {
+ struct mos7715_parport *mos_parport;
+ struct list_head urblist_entry;
+ struct kref ref_count;
+ struct urb *urb;
+};
+
+enum mos7715_pp_modes {
+ SPP = 0<<5,
+ PS2 = 1<<5, /* moschip calls this 'NIBBLE' mode */
+ PPF = 2<<5, /* moschip calls this 'CB-FIFO mode */
+};
+
+struct mos7715_parport {
+ struct parport *pp; /* back to containing struct */
+ struct kref ref_count; /* to instance of this struct */
+ struct list_head deferred_urbs; /* list deferred async urbs */
+ struct list_head active_urbs; /* list async urbs in flight */
+ spinlock_t listlock; /* protects list access */
+ bool msg_pending; /* usb sync call pending */
+ struct completion syncmsg_compl; /* usb sync call completed */
+ struct tasklet_struct urb_tasklet; /* for sending deferred urbs */
+ struct usb_serial *serial; /* back to containing struct */
+ __u8 shadowECR; /* parallel port regs... */
+ __u8 shadowDCR;
+ atomic_t shadowDSR; /* updated in int-in callback */
+};
+
+/* lock guards against dereferencing NULL ptr in parport ops callbacks */
+static DEFINE_SPINLOCK(release_lock);
+
+#endif /* CONFIG_USB_SERIAL_MOS7715_PARPORT */
+
+static const unsigned int dummy; /* for clarity in register access fns */
+
+enum mos_regs {
+ THR, /* serial port regs */
+ RHR,
+ IER,
+ FCR,
+ ISR,
+ LCR,
+ MCR,
+ LSR,
+ MSR,
+ SPR,
+ DLL,
+ DLM,
+ DPR, /* parallel port regs */
+ DSR,
+ DCR,
+ ECR,
+ SP1_REG, /* device control regs */
+ SP2_REG, /* serial port 2 (7720 only) */
+ PP_REG,
+ SP_CONTROL_REG,
+};
+
+/*
+ * Return the correct value for the Windex field of the setup packet
+ * for a control endpoint message. See the 7715 datasheet.
+ */
+static inline __u16 get_reg_index(enum mos_regs reg)
+{
+ static const __u16 mos7715_index_lookup_table[] = {
+ 0x00, /* THR */
+ 0x00, /* RHR */
+ 0x01, /* IER */
+ 0x02, /* FCR */
+ 0x02, /* ISR */
+ 0x03, /* LCR */
+ 0x04, /* MCR */
+ 0x05, /* LSR */
+ 0x06, /* MSR */
+ 0x07, /* SPR */
+ 0x00, /* DLL */
+ 0x01, /* DLM */
+ 0x00, /* DPR */
+ 0x01, /* DSR */
+ 0x02, /* DCR */
+ 0x0a, /* ECR */
+ 0x01, /* SP1_REG */
+ 0x02, /* SP2_REG (7720 only) */
+ 0x04, /* PP_REG (7715 only) */
+ 0x08, /* SP_CONTROL_REG */
+ };
+ return mos7715_index_lookup_table[reg];
+}
+
+/*
+ * Return the correct value for the upper byte of the Wvalue field of
+ * the setup packet for a control endpoint message.
+ */
+static inline __u16 get_reg_value(enum mos_regs reg,
+ unsigned int serial_portnum)
+{
+ if (reg >= SP1_REG) /* control reg */
+ return 0x0000;
+
+ else if (reg >= DPR) /* parallel port reg (7715 only) */
+ return 0x0100;
+
+ else /* serial port reg */
+ return (serial_portnum + 2) << 8;
+}
+
+/*
+ * Write data byte to the specified device register. The data is embedded in
+ * the value field of the setup packet. serial_portnum is ignored for registers
+ * not specific to a particular serial port.
+ */
+static int write_mos_reg(struct usb_serial *serial, unsigned int serial_portnum,
+ enum mos_regs reg, __u8 data)
+{
+ struct usb_device *usbdev = serial->dev;
+ unsigned int pipe = usb_sndctrlpipe(usbdev, 0);
+ __u8 request = (__u8)0x0e;
+ __u8 requesttype = (__u8)0x40;
+ __u16 index = get_reg_index(reg);
+ __u16 value = get_reg_value(reg, serial_portnum) + data;
+ int status = usb_control_msg(usbdev, pipe, request, requesttype, value,
+ index, NULL, 0, MOS_WDR_TIMEOUT);
+ if (status < 0)
+ dev_err(&usbdev->dev,
+ "mos7720: usb_control_msg() failed: %d", status);
+ return status;
+}
+
+/*
+ * Read data byte from the specified device register. The data returned by the
+ * device is embedded in the value field of the setup packet. serial_portnum is
+ * ignored for registers that are not specific to a particular serial port.
+ */
+static int read_mos_reg(struct usb_serial *serial, unsigned int serial_portnum,
+ enum mos_regs reg, __u8 *data)
+{
+ struct usb_device *usbdev = serial->dev;
+ unsigned int pipe = usb_rcvctrlpipe(usbdev, 0);
+ __u8 request = (__u8)0x0d;
+ __u8 requesttype = (__u8)0xc0;
+ __u16 index = get_reg_index(reg);
+ __u16 value = get_reg_value(reg, serial_portnum);
+ int status = usb_control_msg(usbdev, pipe, request, requesttype, value,
+ index, data, 1, MOS_WDR_TIMEOUT);
+ if (status < 0)
+ dev_err(&usbdev->dev,
+ "mos7720: usb_control_msg() failed: %d", status);
+ return status;
+}
+
+#ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
+
+static inline int mos7715_change_mode(struct mos7715_parport *mos_parport,
+ enum mos7715_pp_modes mode)
+{
+ mos_parport->shadowECR = mode;
+ write_mos_reg(mos_parport->serial, dummy, ECR, mos_parport->shadowECR);
+ return 0;
+}
+
+static void destroy_mos_parport(struct kref *kref)
+{
+ struct mos7715_parport *mos_parport =
+ container_of(kref, struct mos7715_parport, ref_count);
+
+ dbg("%s called", __func__);
+ kfree(mos_parport);
+}
+
+static void destroy_urbtracker(struct kref *kref)
+{
+ struct urbtracker *urbtrack =
+ container_of(kref, struct urbtracker, ref_count);
+ struct mos7715_parport *mos_parport = urbtrack->mos_parport;
+ dbg("%s called", __func__);
+ usb_free_urb(urbtrack->urb);
+ kfree(urbtrack);
+ kref_put(&mos_parport->ref_count, destroy_mos_parport);
+}
+
+/*
+ * This runs as a tasklet when sending an urb in a non-blocking parallel
+ * port callback had to be deferred because the disconnect mutex could not be
+ * obtained at the time.
+ */
+static void send_deferred_urbs(unsigned long _mos_parport)
+{
+ int ret_val;
+ unsigned long flags;
+ struct mos7715_parport *mos_parport = (void *)_mos_parport;
+ struct urbtracker *urbtrack;
+ struct list_head *cursor, *next;
+
+ dbg("%s called", __func__);
+
+ /* if release function ran, game over */
+ if (unlikely(mos_parport->serial == NULL))
+ return;
+
+ /* try again to get the mutex */
+ if (!mutex_trylock(&mos_parport->serial->disc_mutex)) {
+ dbg("%s: rescheduling tasklet", __func__);
+ tasklet_schedule(&mos_parport->urb_tasklet);
+ return;
+ }
+
+ /* if device disconnected, game over */
+ if (unlikely(mos_parport->serial->disconnected)) {
+ mutex_unlock(&mos_parport->serial->disc_mutex);
+ return;
+ }
+
+ spin_lock_irqsave(&mos_parport->listlock, flags);
+ if (list_empty(&mos_parport->deferred_urbs)) {
+ spin_unlock_irqrestore(&mos_parport->listlock, flags);
+ mutex_unlock(&mos_parport->serial->disc_mutex);
+ dbg("%s: deferred_urbs list empty", __func__);
+ return;
+ }
+
+ /* move contents of deferred_urbs list to active_urbs list and submit */
+ list_for_each_safe(cursor, next, &mos_parport->deferred_urbs)
+ list_move_tail(cursor, &mos_parport->active_urbs);
+ list_for_each_entry(urbtrack, &mos_parport->active_urbs,
+ urblist_entry) {
+ ret_val = usb_submit_urb(urbtrack->urb, GFP_ATOMIC);
+ dbg("%s: urb submitted", __func__);
+ if (ret_val) {
+ dev_err(&mos_parport->serial->dev->dev,
+ "usb_submit_urb() failed: %d", ret_val);
+ list_del(&urbtrack->urblist_entry);
+ kref_put(&urbtrack->ref_count, destroy_urbtracker);
+ }
+ }
+ spin_unlock_irqrestore(&mos_parport->listlock, flags);
+ mutex_unlock(&mos_parport->serial->disc_mutex);
+}
+
+/* callback for parallel port control urbs submitted asynchronously */
+static void async_complete(struct urb *urb)
+{
+ struct urbtracker *urbtrack = urb->context;
+ int status = urb->status;
+ dbg("%s called", __func__);
+ if (unlikely(status))
+ dbg("%s - nonzero urb status received: %d", __func__, status);
+
+ /* remove the urbtracker from the active_urbs list */
+ spin_lock(&urbtrack->mos_parport->listlock);
+ list_del(&urbtrack->urblist_entry);
+ spin_unlock(&urbtrack->mos_parport->listlock);
+ kref_put(&urbtrack->ref_count, destroy_urbtracker);
+}
+
+static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
+ enum mos_regs reg, __u8 data)
+{
+ struct urbtracker *urbtrack;
+ int ret_val;
+ unsigned long flags;
+ struct usb_ctrlrequest setup;
+ struct usb_serial *serial = mos_parport->serial;
+ struct usb_device *usbdev = serial->dev;
+ dbg("%s called", __func__);
+
+ /* create and initialize the control urb and containing urbtracker */
+ urbtrack = kmalloc(sizeof(struct urbtracker), GFP_ATOMIC);
+ if (urbtrack == NULL) {
+ dev_err(&usbdev->dev, "out of memory");
+ return -ENOMEM;
+ }
+ kref_get(&mos_parport->ref_count);
+ urbtrack->mos_parport = mos_parport;
+ urbtrack->urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (urbtrack->urb == NULL) {
+ dev_err(&usbdev->dev, "out of urbs");
+ kfree(urbtrack);
+ return -ENOMEM;
+ }
+ setup.bRequestType = (__u8)0x40;
+ setup.bRequest = (__u8)0x0e;
+ setup.wValue = get_reg_value(reg, dummy);
+ setup.wIndex = get_reg_index(reg);
+ setup.wLength = 0;
+ usb_fill_control_urb(urbtrack->urb, usbdev,
+ usb_sndctrlpipe(usbdev, 0),
+ (unsigned char *)&setup,
+ NULL, 0, async_complete, urbtrack);
+ kref_init(&urbtrack->ref_count);
+ INIT_LIST_HEAD(&urbtrack->urblist_entry);
+
+ /*
+ * get the disconnect mutex, or add tracker to the deferred_urbs list
+ * and schedule a tasklet to try again later
+ */
+ if (!mutex_trylock(&serial->disc_mutex)) {
+ spin_lock_irqsave(&mos_parport->listlock, flags);
+ list_add_tail(&urbtrack->urblist_entry,
+ &mos_parport->deferred_urbs);
+ spin_unlock_irqrestore(&mos_parport->listlock, flags);
+ tasklet_schedule(&mos_parport->urb_tasklet);
+ dbg("tasklet scheduled");
+ return 0;
+ }
+
+ /* bail if device disconnected */
+ if (serial->disconnected) {
+ kref_put(&urbtrack->ref_count, destroy_urbtracker);
+ mutex_unlock(&serial->disc_mutex);
+ return -ENODEV;
+ }
+
+ /* add the tracker to the active_urbs list and submit */
+ spin_lock_irqsave(&mos_parport->listlock, flags);
+ list_add_tail(&urbtrack->urblist_entry, &mos_parport->active_urbs);
+ spin_unlock_irqrestore(&mos_parport->listlock, flags);
+ ret_val = usb_submit_urb(urbtrack->urb, GFP_ATOMIC);
+ mutex_unlock(&serial->disc_mutex);
+ if (ret_val) {
+ dev_err(&usbdev->dev,
+ "%s: submit_urb() failed: %d", __func__, ret_val);
+ spin_lock_irqsave(&mos_parport->listlock, flags);
+ list_del(&urbtrack->urblist_entry);
+ spin_unlock_irqrestore(&mos_parport->listlock, flags);
+ kref_put(&urbtrack->ref_count, destroy_urbtracker);
+ return ret_val;
+ }
+ return 0;
+}
+
+/*
+ * This is the the common top part of all parallel port callback operations that
+ * send synchronous messages to the device. This implements convoluted locking
+ * that avoids two scenarios: (1) a port operation is called after usbserial
+ * has called our release function, at which point struct mos7715_parport has
+ * been destroyed, and (2) the device has been disconnected, but usbserial has
+ * not called the release function yet because someone has a serial port open.
+ * The shared release_lock prevents the first, and the mutex and disconnected
+ * flag maintained by usbserial covers the second. We also use the msg_pending
+ * flag to ensure that all synchronous usb messgage calls have completed before
+ * our release function can return.
+ */
+static int parport_prologue(struct parport *pp)
+{
+ struct mos7715_parport *mos_parport;
+
+ spin_lock(&release_lock);
+ mos_parport = pp->private_data;
+ if (unlikely(mos_parport == NULL)) {
+ /* release fn called, port struct destroyed */
+ spin_unlock(&release_lock);
+ return -1;
+ }
+ mos_parport->msg_pending = true; /* synch usb call pending */
+ INIT_COMPLETION(mos_parport->syncmsg_compl);
+ spin_unlock(&release_lock);
+
+ mutex_lock(&mos_parport->serial->disc_mutex);
+ if (mos_parport->serial->disconnected) {
+ /* device disconnected */
+ mutex_unlock(&mos_parport->serial->disc_mutex);
+ mos_parport->msg_pending = false;
+ complete(&mos_parport->syncmsg_compl);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * This is the the common bottom part of all parallel port functions that send
+ * synchronous messages to the device.
+ */
+static inline void parport_epilogue(struct parport *pp)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ mutex_unlock(&mos_parport->serial->disc_mutex);
+ mos_parport->msg_pending = false;
+ complete(&mos_parport->syncmsg_compl);
+}
+
+static void parport_mos7715_write_data(struct parport *pp, unsigned char d)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ dbg("%s called: %2.2x", __func__, d);
+ if (parport_prologue(pp) < 0)
+ return;
+ mos7715_change_mode(mos_parport, SPP);
+ write_mos_reg(mos_parport->serial, dummy, DPR, (__u8)d);
+ parport_epilogue(pp);
+}
+
+static unsigned char parport_mos7715_read_data(struct parport *pp)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ unsigned char d;
+ dbg("%s called", __func__);
+ if (parport_prologue(pp) < 0)
+ return 0;
+ read_mos_reg(mos_parport->serial, dummy, DPR, &d);
+ parport_epilogue(pp);
+ return d;
+}
+
+static void parport_mos7715_write_control(struct parport *pp, unsigned char d)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ __u8 data;
+ dbg("%s called: %2.2x", __func__, d);
+ if (parport_prologue(pp) < 0)
+ return;
+ data = ((__u8)d & 0x0f) | (mos_parport->shadowDCR & 0xf0);
+ write_mos_reg(mos_parport->serial, dummy, DCR, data);
+ mos_parport->shadowDCR = data;
+ parport_epilogue(pp);
+}
+
+static unsigned char parport_mos7715_read_control(struct parport *pp)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ __u8 dcr;
+ dbg("%s called", __func__);
+ spin_lock(&release_lock);
+ mos_parport = pp->private_data;
+ if (unlikely(mos_parport == NULL)) {
+ spin_unlock(&release_lock);
+ return 0;
+ }
+ dcr = mos_parport->shadowDCR & 0x0f;
+ spin_unlock(&release_lock);
+ return dcr;
+}
+
+static unsigned char parport_mos7715_frob_control(struct parport *pp,
+ unsigned char mask,
+ unsigned char val)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ __u8 dcr;
+ dbg("%s called", __func__);
+ mask &= 0x0f;
+ val &= 0x0f;
+ if (parport_prologue(pp) < 0)
+ return 0;
+ mos_parport->shadowDCR = (mos_parport->shadowDCR & (~mask)) ^ val;
+ write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ dcr = mos_parport->shadowDCR & 0x0f;
+ parport_epilogue(pp);
+ return dcr;
+}
+
+static unsigned char parport_mos7715_read_status(struct parport *pp)
+{
+ unsigned char status;
+ struct mos7715_parport *mos_parport = pp->private_data;
+ dbg("%s called", __func__);
+ spin_lock(&release_lock);
+ mos_parport = pp->private_data;
+ if (unlikely(mos_parport == NULL)) { /* release called */
+ spin_unlock(&release_lock);
+ return 0;
+ }
+ status = atomic_read(&mos_parport->shadowDSR) & 0xf8;
+ spin_unlock(&release_lock);
+ return status;
+}
+
+static void parport_mos7715_enable_irq(struct parport *pp)
+{
+ dbg("%s called", __func__);
+}
+static void parport_mos7715_disable_irq(struct parport *pp)
+{
+ dbg("%s called", __func__);
+}
+
+static void parport_mos7715_data_forward(struct parport *pp)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ dbg("%s called", __func__);
+ if (parport_prologue(pp) < 0)
+ return;
+ mos7715_change_mode(mos_parport, PS2);
+ mos_parport->shadowDCR &= ~0x20;
+ write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ parport_epilogue(pp);
+}
+
+static void parport_mos7715_data_reverse(struct parport *pp)
+{
+ struct mos7715_parport *mos_parport = pp->private_data;
+ dbg("%s called", __func__);
+ if (parport_prologue(pp) < 0)
+ return;
+ mos7715_change_mode(mos_parport, PS2);
+ mos_parport->shadowDCR |= 0x20;
+ write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ parport_epilogue(pp);
+}
+
+static void parport_mos7715_init_state(struct pardevice *dev,
+ struct parport_state *s)
+{
+ dbg("%s called", __func__);
+ s->u.pc.ctr = DCR_INIT_VAL;
+ s->u.pc.ecr = ECR_INIT_VAL;
+}
+
+/* N.B. Parport core code requires that this function not block */
+static void parport_mos7715_save_state(struct parport *pp,
+ struct parport_state *s)
+{
+ struct mos7715_parport *mos_parport;
+ dbg("%s called", __func__);
+ spin_lock(&release_lock);
+ mos_parport = pp->private_data;
+ if (unlikely(mos_parport == NULL)) { /* release called */
+ spin_unlock(&release_lock);
+ return;
+ }
+ s->u.pc.ctr = mos_parport->shadowDCR;
+ s->u.pc.ecr = mos_parport->shadowECR;
+ spin_unlock(&release_lock);
+}
+
+/* N.B. Parport core code requires that this function not block */
+static void parport_mos7715_restore_state(struct parport *pp,
+ struct parport_state *s)
+{
+ struct mos7715_parport *mos_parport;
+ dbg("%s called", __func__);
+ spin_lock(&release_lock);
+ mos_parport = pp->private_data;
+ if (unlikely(mos_parport == NULL)) { /* release called */
+ spin_unlock(&release_lock);
+ return;
+ }
+ write_parport_reg_nonblock(mos_parport, DCR, mos_parport->shadowDCR);
+ write_parport_reg_nonblock(mos_parport, ECR, mos_parport->shadowECR);
+ spin_unlock(&release_lock);
+}
+
+static size_t parport_mos7715_write_compat(struct parport *pp,
+ const void *buffer,
+ size_t len, int flags)
+{
+ int retval;
+ struct mos7715_parport *mos_parport = pp->private_data;
+ int actual_len;
+ dbg("%s called: %u chars", __func__, (unsigned int)len);
+ if (parport_prologue(pp) < 0)
+ return 0;
+ mos7715_change_mode(mos_parport, PPF);
+ retval = usb_bulk_msg(mos_parport->serial->dev,
+ usb_sndbulkpipe(mos_parport->serial->dev, 2),
+ (void *)buffer, len, &actual_len,
+ MOS_WDR_TIMEOUT);
+ parport_epilogue(pp);
+ if (retval) {
+ dev_err(&mos_parport->serial->dev->dev,
+ "mos7720: usb_bulk_msg() failed: %d", retval);
+ return 0;
+ }
+ return actual_len;
+}
+
+static struct parport_operations parport_mos7715_ops = {
+ .owner = THIS_MODULE,
+ .write_data = parport_mos7715_write_data,
+ .read_data = parport_mos7715_read_data,
+
+ .write_control = parport_mos7715_write_control,
+ .read_control = parport_mos7715_read_control,
+ .frob_control = parport_mos7715_frob_control,
+
+ .read_status = parport_mos7715_read_status,
+
+ .enable_irq = parport_mos7715_enable_irq,
+ .disable_irq = parport_mos7715_disable_irq,
+
+ .data_forward = parport_mos7715_data_forward,
+ .data_reverse = parport_mos7715_data_reverse,
+
+ .init_state = parport_mos7715_init_state,
+ .save_state = parport_mos7715_save_state,
+ .restore_state = parport_mos7715_restore_state,
+
+ .compat_write_data = parport_mos7715_write_compat,
+
+ .nibble_read_data = parport_ieee1284_read_nibble,
+ .byte_read_data = parport_ieee1284_read_byte,
+};
+
+/*
+ * Allocate and initialize parallel port control struct, initialize
+ * the parallel port hardware device, and register with the parport subsystem.
+ */
+static int mos7715_parport_init(struct usb_serial *serial)
+{
+ struct mos7715_parport *mos_parport;
+
+ /* allocate and initialize parallel port control struct */
+ mos_parport = kzalloc(sizeof(struct mos7715_parport), GFP_KERNEL);
+ if (mos_parport == NULL) {
+ dbg("mos7715_parport_init: kzalloc failed");
+ return -ENOMEM;
+ }
+ mos_parport->msg_pending = false;
+ kref_init(&mos_parport->ref_count);
+ spin_lock_init(&mos_parport->listlock);
+ INIT_LIST_HEAD(&mos_parport->active_urbs);
+ INIT_LIST_HEAD(&mos_parport->deferred_urbs);
+ usb_set_serial_data(serial, mos_parport); /* hijack private pointer */
+ mos_parport->serial = serial;
+ tasklet_init(&mos_parport->urb_tasklet, send_deferred_urbs,
+ (unsigned long) mos_parport);
+ init_completion(&mos_parport->syncmsg_compl);
+
+ /* cycle parallel port reset bit */
+ write_mos_reg(mos_parport->serial, dummy, PP_REG, (__u8)0x80);
+ write_mos_reg(mos_parport->serial, dummy, PP_REG, (__u8)0x00);
+
+ /* initialize device registers */
+ mos_parport->shadowDCR = DCR_INIT_VAL;
+ write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ mos_parport->shadowECR = ECR_INIT_VAL;
+ write_mos_reg(mos_parport->serial, dummy, ECR, mos_parport->shadowECR);
+
+ /* register with parport core */
+ mos_parport->pp = parport_register_port(0, PARPORT_IRQ_NONE,
+ PARPORT_DMA_NONE,
+ &parport_mos7715_ops);
+ if (mos_parport->pp == NULL) {
+ dev_err(&serial->interface->dev,
+ "Could not register parport\n");
+ kref_put(&mos_parport->ref_count, destroy_mos_parport);
+ return -EIO;
+ }
+ mos_parport->pp->private_data = mos_parport;
+ mos_parport->pp->modes = PARPORT_MODE_COMPAT | PARPORT_MODE_PCSPP;
+ mos_parport->pp->dev = &serial->interface->dev;
+ parport_announce_port(mos_parport->pp);
+
+ return 0;
+}
+#endif /* CONFIG_USB_SERIAL_MOS7715_PARPORT */
/*
* mos7720_interrupt_callback
@@ -109,8 +753,6 @@
__u8 sp1;
__u8 sp2;
- dbg(" : Entering");
-
switch (status) {
case 0:
/* success */
@@ -161,7 +803,7 @@
dbg("Serial Port 1: Receiver time out");
break;
case SERIAL_IIR_MS:
- dbg("Serial Port 1: Modem status change");
+ /* dbg("Serial Port 1: Modem status change"); */
break;
}
@@ -174,7 +816,7 @@
dbg("Serial Port 2: Receiver time out");
break;
case SERIAL_IIR_MS:
- dbg("Serial Port 2: Modem status change");
+ /* dbg("Serial Port 2: Modem status change"); */
break;
}
}
@@ -208,6 +850,7 @@
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
+ case -ENODEV:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __func__,
status);
@@ -243,11 +886,21 @@
dbg("Serial Port: Receiver time out");
break;
case SERIAL_IIR_MS:
- dbg("Serial Port: Modem status change");
+ /* dbg("Serial Port: Modem status change"); */
break;
}
}
+#ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
+ { /* update local copy of DSR reg */
+ struct usb_serial_port *port = urb->context;
+ struct mos7715_parport *mos_parport = port->serial->private;
+ if (unlikely(mos_parport == NULL))
+ return;
+ atomic_set(&mos_parport->shadowDSR, data[2]);
+ }
+#endif
+
exit:
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result)
@@ -267,7 +920,6 @@
int retval;
unsigned char *data ;
struct usb_serial_port *port;
- struct moschip_port *mos7720_port;
struct tty_struct *tty;
int status = urb->status;
@@ -276,13 +928,7 @@
return;
}
- mos7720_port = urb->context;
- if (!mos7720_port) {
- dbg("NULL mos7720_port pointer");
- return ;
- }
-
- port = mos7720_port->port;
+ port = urb->context;
dbg("Entering...%s", __func__);
@@ -332,8 +978,6 @@
return ;
}
- dbg("Entering .........");
-
tty = tty_port_tty_get(&mos7720_port->port->port);
if (tty && mos7720_port->open)
@@ -342,56 +986,6 @@
}
/*
- * send_mos_cmd
- * this function will be used for sending command to device
- */
-static int send_mos_cmd(struct usb_serial *serial, __u8 request, __u16 value,
- __u16 index, u8 *data)
-{
- int status;
- u8 *buf;
- u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
-
- if (value < MOS_MAX_PORT) {
- if (product == MOSCHIP_DEVICE_ID_7715)
- value = 0x0200; /* identifies the 7715's serial port */
- else
- value = value*0x100+0x200;
- } else {
- value = 0x0000;
- if ((product == MOSCHIP_DEVICE_ID_7715) &&
- (index != 0x08)) {
- dbg("serial->product== MOSCHIP_DEVICE_ID_7715");
- /* index = 0x01 ; */
- }
- }
-
- if (request == MOS_WRITE) {
- value = value + *data;
- status = usb_control_msg(serial->dev,
- usb_sndctrlpipe(serial->dev, 0), MOS_WRITE,
- 0x40, value, index, NULL, 0, MOS_WDR_TIMEOUT);
- } else {
- buf = kmalloc(1, GFP_KERNEL);
- if (!buf) {
- status = -ENOMEM;
- goto out;
- }
- status = usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0), MOS_READ,
- 0xc0, value, index, buf, 1, MOS_WDR_TIMEOUT);
- *data = *buf;
- kfree(buf);
- }
-out:
- if (status < 0)
- dbg("Command Write failed Value %x index %x", value, index);
-
- return status;
-}
-
-
-/*
* mos77xx_probe
* this function installs the appropriate read interrupt endpoint callback
* depending on whether the device is a 7720 or 7715, thus avoiding costly
@@ -424,11 +1018,10 @@
struct usb_serial *serial;
struct usb_serial_port *port0;
struct urb *urb;
- struct moschip_serial *mos7720_serial;
struct moschip_port *mos7720_port;
int response;
int port_number;
- char data;
+ __u8 data;
int allocated_urbs = 0;
int j;
@@ -440,11 +1033,6 @@
port0 = serial->port[0];
- mos7720_serial = usb_get_serial_data(serial);
-
- if (mos7720_serial == NULL || port0 == NULL)
- return -ENODEV;
-
usb_clear_halt(serial->dev, port->write_urb->pipe);
usb_clear_halt(serial->dev, port->read_urb->pipe);
@@ -489,103 +1077,36 @@
* 0x08 : SP1/2 Control Reg
*/
port_number = port->number - port->serial->minor;
- send_mos_cmd(port->serial, MOS_READ, port_number, UART_LSR, &data);
+ read_mos_reg(serial, port_number, LSR, &data);
+
dbg("SS::%p LSR:%x", mos7720_port, data);
dbg("Check:Sending Command ..........");
- data = 0x02;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x01, &data);
- data = 0x02;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x02, &data);
+ write_mos_reg(serial, dummy, SP1_REG, 0x02);
+ write_mos_reg(serial, dummy, SP2_REG, 0x02);
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x02, &data);
+ write_mos_reg(serial, port_number, IER, 0x00);
+ write_mos_reg(serial, port_number, FCR, 0x00);
- data = 0xCF;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x02, &data);
- data = 0x03;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
- data = 0x0b;
- mos7720_port->shadowMCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
- data = 0x0b;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
+ write_mos_reg(serial, port_number, FCR, 0xcf);
+ mos7720_port->shadowLCR = 0x03;
+ write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ mos7720_port->shadowMCR = 0x0b;
+ write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
- data = 0x00;
- send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data);
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
-
-/* data = 0x00;
- send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, port_number + 1, &data);
- data = 0x03;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1, &data);
- data = 0x00;
- send_mos_cmd(port->serial, MOS_WRITE, MOS_MAX_PORT,
- port_number + 1, &data);
-*/
- data = 0x00;
- send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data);
-
+ write_mos_reg(serial, port_number, SP_CONTROL_REG, 0x00);
+ read_mos_reg(serial, dummy, SP_CONTROL_REG, &data);
data = data | (port->number - port->serial->minor + 1);
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
+ write_mos_reg(serial, dummy, SP_CONTROL_REG, data);
+ mos7720_port->shadowLCR = 0x83;
+ write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, THR, 0x0c);
+ write_mos_reg(serial, port_number, IER, 0x00);
+ mos7720_port->shadowLCR = 0x03;
+ write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, IER, 0x0c);
- data = 0x83;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
- data = 0x0c;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x00, &data);
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
- data = 0x03;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
- data = 0x0c;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
- data = 0x0c;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
-
- /* see if we've set up our endpoint info yet *
- * (can't set it up in mos7720_startup as the *
- * structures were not set up at that time.) */
- if (!mos7720_serial->interrupt_started) {
- dbg("Interrupt buffer NULL !!!");
-
- /* not set up yet, so do it now */
- mos7720_serial->interrupt_started = 1;
-
- dbg("To Submit URB !!!");
-
- /* set up our interrupt urb */
- usb_fill_int_urb(port0->interrupt_in_urb, serial->dev,
- usb_rcvintpipe(serial->dev,
- port->interrupt_in_endpointAddress),
- port0->interrupt_in_buffer,
- port0->interrupt_in_urb->transfer_buffer_length,
- mos7720_interrupt_callback, mos7720_port,
- port0->interrupt_in_urb->interval);
-
- /* start interrupt read for this mos7720 this interrupt *
- * will continue as long as the mos7720 is connected */
- dbg("Submit URB over !!!");
- response = usb_submit_urb(port0->interrupt_in_urb, GFP_KERNEL);
- if (response)
- dev_err(&port->dev,
- "%s - Error %d submitting control urb\n",
- __func__, response);
- }
-
- /* set up our bulk in urb */
- usb_fill_bulk_urb(port->read_urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->bulk_in_buffer,
- port->read_urb->transfer_buffer_length,
- mos7720_bulk_in_callback, mos7720_port);
response = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (response)
dev_err(&port->dev, "%s - Error %d submitting read urb\n",
@@ -640,7 +1161,6 @@
{
struct usb_serial *serial;
struct moschip_port *mos7720_port;
- char data;
int j;
dbg("mos7720_close:entering...");
@@ -673,13 +1193,10 @@
/* these commands must not be issued if the device has
* been disconnected */
if (!serial->disconnected) {
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE,
- port->number - port->serial->minor, 0x04, &data);
-
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE,
- port->number - port->serial->minor, 0x01, &data);
+ write_mos_reg(serial, port->number - port->serial->minor,
+ MCR, 0x00);
+ write_mos_reg(serial, port->number - port->serial->minor,
+ IER, 0x00);
}
mutex_unlock(&serial->disc_mutex);
mos7720_port->open = 0;
@@ -708,8 +1225,8 @@
data = mos7720_port->shadowLCR & ~UART_LCR_SBC;
mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, port->number - port->serial->minor,
- 0x03, &data);
+ write_mos_reg(serial, port->number - port->serial->minor,
+ LCR, mos7720_port->shadowLCR);
return;
}
@@ -854,9 +1371,8 @@
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios->c_cflag & CRTSCTS) {
mos7720_port->shadowMCR &= ~UART_MCR_RTS;
- status = send_mos_cmd(port->serial, MOS_WRITE,
- port->number - port->serial->minor,
- UART_MCR, &mos7720_port->shadowMCR);
+ write_mos_reg(port->serial, port->number - port->serial->minor,
+ MCR, mos7720_port->shadowMCR);
if (status != 0)
return;
}
@@ -889,22 +1405,21 @@
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios->c_cflag & CRTSCTS) {
mos7720_port->shadowMCR |= UART_MCR_RTS;
- status = send_mos_cmd(port->serial, MOS_WRITE,
- port->number - port->serial->minor,
- UART_MCR, &mos7720_port->shadowMCR);
+ write_mos_reg(port->serial, port->number - port->serial->minor,
+ MCR, mos7720_port->shadowMCR);
if (status != 0)
return;
}
}
+/* FIXME: this function does not work */
static int set_higher_rates(struct moschip_port *mos7720_port,
unsigned int baud)
{
- unsigned char data;
struct usb_serial_port *port;
struct usb_serial *serial;
int port_number;
-
+ enum mos_regs sp_reg;
if (mos7720_port == NULL)
return -EINVAL;
@@ -917,58 +1432,35 @@
dbg("Sending Setting Commands ..........");
port_number = port->number - port->serial->minor;
- data = 0x000;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
- data = 0x000;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x02, &data);
- data = 0x0CF;
- send_mos_cmd(serial, MOS_WRITE, port->number, 0x02, &data);
- data = 0x00b;
- mos7720_port->shadowMCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
- data = 0x00b;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
-
- data = 0x000;
- send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data);
- data = 0x000;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
-
+ write_mos_reg(serial, port_number, IER, 0x00);
+ write_mos_reg(serial, port_number, FCR, 0x00);
+ write_mos_reg(serial, port_number, FCR, 0xcf);
+ mos7720_port->shadowMCR = 0x0b;
+ write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x00);
/***********************************************
* Set for higher rates *
***********************************************/
-
- data = baud * 0x10;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, port_number + 1, &data);
-
- data = 0x003;
- send_mos_cmd(serial, MOS_READ, MOS_MAX_PORT, 0x08, &data);
- data = 0x003;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT, 0x08, &data);
-
- data = 0x02b;
- mos7720_port->shadowMCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
- data = 0x02b;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
+ /* writing baud rate verbatum into uart clock field clearly not right */
+ if (port_number == 0)
+ sp_reg = SP1_REG;
+ else
+ sp_reg = SP2_REG;
+ write_mos_reg(serial, dummy, sp_reg, baud * 0x10);
+ write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x03);
+ mos7720_port->shadowMCR = 0x2b;
+ write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
/***********************************************
* Set DLL/DLM
***********************************************/
-
- data = mos7720_port->shadowLCR | UART_LCR_DLAB;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
-
- data = 0x001; /* DLL */
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x00, &data);
- data = 0x000; /* DLM */
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x01, &data);
-
- data = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x03, &data);
+ mos7720_port->shadowLCR = mos7720_port->shadowLCR | UART_LCR_DLAB;
+ write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, DLL, 0x01);
+ write_mos_reg(serial, port_number, DLM, 0x00);
+ mos7720_port->shadowLCR = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
+ write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
return 0;
}
@@ -1056,7 +1548,6 @@
struct usb_serial *serial;
int divisor;
int status;
- unsigned char data;
unsigned char number;
if (mos7720_port == NULL)
@@ -1078,21 +1569,16 @@
}
/* Enable access to divisor latch */
- data = mos7720_port->shadowLCR | UART_LCR_DLAB;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, number, UART_LCR, &data);
+ mos7720_port->shadowLCR = mos7720_port->shadowLCR | UART_LCR_DLAB;
+ write_mos_reg(serial, number, LCR, mos7720_port->shadowLCR);
/* Write the divisor */
- data = ((unsigned char)(divisor & 0xff));
- send_mos_cmd(serial, MOS_WRITE, number, 0x00, &data);
-
- data = ((unsigned char)((divisor & 0xff00) >> 8));
- send_mos_cmd(serial, MOS_WRITE, number, 0x01, &data);
+ write_mos_reg(serial, number, DLL, (__u8)(divisor & 0xff));
+ write_mos_reg(serial, number, DLM, (__u8)((divisor & 0xff00) >> 8));
/* Disable access to divisor latch */
- data = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
- mos7720_port->shadowLCR = data;
- send_mos_cmd(serial, MOS_WRITE, number, 0x03, &data);
+ mos7720_port->shadowLCR = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
+ write_mos_reg(serial, number, LCR, mos7720_port->shadowLCR);
return status;
}
@@ -1117,7 +1603,6 @@
__u8 lStop;
int status;
int port_number;
- char data;
if (mos7720_port == NULL)
return ;
@@ -1196,30 +1681,19 @@
/* Update the LCR with the correct value */
mos7720_port->shadowLCR &=
- ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
+ ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
mos7720_port->shadowLCR |= (lData | lParity | lStop);
/* Disable Interrupts */
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE, port->number - port->serial->minor,
- UART_IER, &data);
-
- data = 0x00;
- send_mos_cmd(serial, MOS_WRITE, port_number, UART_FCR, &data);
-
- data = 0xcf;
- send_mos_cmd(serial, MOS_WRITE, port_number, UART_FCR, &data);
+ write_mos_reg(serial, port_number, IER, 0x00);
+ write_mos_reg(serial, port_number, FCR, 0x00);
+ write_mos_reg(serial, port_number, FCR, 0xcf);
/* Send the updated LCR value to the mos7720 */
- data = mos7720_port->shadowLCR;
- send_mos_cmd(serial, MOS_WRITE, port_number, UART_LCR, &data);
-
- data = 0x00b;
- mos7720_port->shadowMCR = data;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
- data = 0x00b;
- send_mos_cmd(serial, MOS_WRITE, port_number, 0x04, &data);
+ write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ mos7720_port->shadowMCR = 0x0b;
+ write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
/* set up the MCR register and send it to the mos7720 */
mos7720_port->shadowMCR = UART_MCR_OUT2;
@@ -1230,21 +1704,15 @@
mos7720_port->shadowMCR |= (UART_MCR_XONANY);
/* To set hardware flow control to the specified *
* serial port, in SP1/2_CONTROL_REG */
- if (port->number) {
- data = 0x001;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT,
- 0x08, &data);
- } else {
- data = 0x002;
- send_mos_cmd(serial, MOS_WRITE, MOS_MAX_PORT,
- 0x08, &data);
- }
- } else {
- mos7720_port->shadowMCR &= ~(UART_MCR_XONANY);
- }
+ if (port->number)
+ write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x01);
+ else
+ write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x02);
- data = mos7720_port->shadowMCR;
- send_mos_cmd(serial, MOS_WRITE, port_number, UART_MCR, &data);
+ } else
+ mos7720_port->shadowMCR &= ~(UART_MCR_XONANY);
+
+ write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
/* Determine divisor based on baud rate */
baud = tty_get_baud_rate(tty);
@@ -1257,8 +1725,7 @@
if (baud >= 230400) {
set_higher_rates(mos7720_port, baud);
/* Enable Interrupts */
- data = 0x0c;
- send_mos_cmd(serial, MOS_WRITE, port_number, UART_IER, &data);
+ write_mos_reg(serial, port_number, IER, 0x0c);
return;
}
@@ -1269,8 +1736,7 @@
if (cflag & CBAUD)
tty_encode_baud_rate(tty, baud, baud);
/* Enable Interrupts */
- data = 0x0c;
- send_mos_cmd(serial, MOS_WRITE, port_number, UART_IER, &data);
+ write_mos_reg(serial, port_number, IER, 0x0c);
if (port->read_urb->status != -EINPROGRESS) {
port->read_urb->dev = serial->dev;
@@ -1308,7 +1774,7 @@
return;
}
- dbg("setting termios - ASPIRE");
+ dbg("%s\n", "setting termios - ASPIRE");
cflag = tty->termios->c_cflag;
@@ -1326,7 +1792,7 @@
change_port_settings(tty, mos7720_port, old_termios);
if (!port->read_urb) {
- dbg("URB KILLED !!!!!");
+ dbg("%s", "URB KILLED !!!!!");
return;
}
@@ -1361,8 +1827,7 @@
count = mos7720_chars_in_buffer(tty);
if (count == 0) {
- send_mos_cmd(port->serial, MOS_READ, port_number,
- UART_LSR, &data);
+ read_mos_reg(port->serial, port_number, LSR, &data);
if ((data & (UART_LSR_TEMT | UART_LSR_THRE))
== (UART_LSR_TEMT | UART_LSR_THRE)) {
dbg("%s -- Empty", __func__);
@@ -1400,13 +1865,11 @@
}
static int mos7720_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
+ unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct moschip_port *mos7720_port = usb_get_serial_port_data(port);
unsigned int mcr ;
- unsigned char lmcr;
-
dbg("%s - port %d", __func__, port->number);
dbg("he was at tiocmget");
@@ -1427,10 +1890,8 @@
mcr &= ~UART_MCR_LOOP;
mos7720_port->shadowMCR = mcr;
- lmcr = mos7720_port->shadowMCR;
-
- send_mos_cmd(port->serial, MOS_WRITE,
- port->number - port->serial->minor, UART_MCR, &lmcr);
+ write_mos_reg(port->serial, port->number - port->serial->minor,
+ MCR, mos7720_port->shadowMCR);
return 0;
}
@@ -1440,7 +1901,6 @@
{
unsigned int mcr ;
unsigned int arg;
- unsigned char data;
struct usb_serial_port *port;
@@ -1475,10 +1935,8 @@
}
mos7720_port->shadowMCR = mcr;
-
- data = mos7720_port->shadowMCR;
- send_mos_cmd(port->serial, MOS_WRITE,
- port->number - port->serial->minor, UART_MCR, &data);
+ write_mos_reg(port->serial, port->number - port->serial->minor,
+ MCR, mos7720_port->shadowMCR);
return 0;
}
@@ -1590,12 +2048,12 @@
static int mos7720_startup(struct usb_serial *serial)
{
- struct moschip_serial *mos7720_serial;
struct moschip_port *mos7720_port;
struct usb_device *dev;
int i;
char data;
u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
+ int ret_val;
dbg("%s: Entering ..........", __func__);
@@ -1606,15 +2064,6 @@
dev = serial->dev;
- /* create our private serial structure */
- mos7720_serial = kzalloc(sizeof(struct moschip_serial), GFP_KERNEL);
- if (mos7720_serial == NULL) {
- dev_err(&dev->dev, "%s - Out of memory\n", __func__);
- return -ENOMEM;
- }
-
- usb_set_serial_data(serial, mos7720_serial);
-
/*
* The 7715 uses the first bulk in/out endpoint pair for the parallel
* port, and the second for the serial port. Because the usbserial core
@@ -1638,16 +2087,12 @@
serial->port[1]->interrupt_in_buffer = NULL;
}
- /* we set up the pointers to the endpoints in the mos7720_open *
- * function, as the structures aren't created yet. */
- /* set up port private structures */
+ /* set up serial port private structures */
for (i = 0; i < serial->num_ports; ++i) {
mos7720_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL);
if (mos7720_port == NULL) {
dev_err(&dev->dev, "%s - Out of memory\n", __func__);
- usb_set_serial_data(serial, NULL);
- kfree(mos7720_serial);
return -ENOMEM;
}
@@ -1669,12 +2114,22 @@
usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5*HZ);
- /* LSR For Port 1 */
- send_mos_cmd(serial, MOS_READ, 0x00, UART_LSR, &data);
- dbg("LSR:%x", data);
+ /* start the interrupt urb */
+ ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
+ if (ret_val)
+ dev_err(&dev->dev,
+ "%s - Error %d submitting control urb\n",
+ __func__, ret_val);
- /* LSR For Port 2 */
- send_mos_cmd(serial, MOS_READ, 0x01, UART_LSR, &data);
+#ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
+ if (product == MOSCHIP_DEVICE_ID_7715) {
+ ret_val = mos7715_parport_init(serial);
+ if (ret_val < 0)
+ return ret_val;
+ }
+#endif
+ /* LSR For Port 1 */
+ read_mos_reg(serial, 0, LSR, &data);
dbg("LSR:%x", data);
return 0;
@@ -1684,12 +2139,47 @@
{
int i;
+#ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
+ /* close the parallel port */
+
+ if (le16_to_cpu(serial->dev->descriptor.idProduct)
+ == MOSCHIP_DEVICE_ID_7715) {
+ struct urbtracker *urbtrack;
+ unsigned long flags;
+ struct mos7715_parport *mos_parport =
+ usb_get_serial_data(serial);
+
+ /* prevent NULL ptr dereference in port callbacks */
+ spin_lock(&release_lock);
+ mos_parport->pp->private_data = NULL;
+ spin_unlock(&release_lock);
+
+ /* wait for synchronous usb calls to return */
+ if (mos_parport->msg_pending)
+ wait_for_completion_timeout(&mos_parport->syncmsg_compl,
+ MOS_WDR_TIMEOUT);
+
+ parport_remove_port(mos_parport->pp);
+ usb_set_serial_data(serial, NULL);
+ mos_parport->serial = NULL;
+
+ /* if tasklet currently scheduled, wait for it to complete */
+ tasklet_kill(&mos_parport->urb_tasklet);
+
+ /* unlink any urbs sent by the tasklet */
+ spin_lock_irqsave(&mos_parport->listlock, flags);
+ list_for_each_entry(urbtrack,
+ &mos_parport->active_urbs,
+ urblist_entry)
+ usb_unlink_urb(urbtrack->urb);
+ spin_unlock_irqrestore(&mos_parport->listlock, flags);
+
+ kref_put(&mos_parport->ref_count, destroy_mos_parport);
+ }
+#endif
/* free private structure allocated for serial port */
for (i = 0; i < serial->num_ports; ++i)
kfree(usb_get_serial_port_data(serial->port[i]));
-
- /* free private structure allocated for serial device */
- kfree(usb_get_serial_data(serial));
}
static struct usb_driver usb_driver = {
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 2fda1c0..f8424d1 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -26,7 +26,6 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 84d0eda..e280ad8 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -42,35 +42,14 @@
#include <linux/bitops.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include "usb-wwan.h"
/* Function prototypes */
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id);
-static int option_open(struct tty_struct *tty, struct usb_serial_port *port);
-static void option_close(struct usb_serial_port *port);
-static void option_dtr_rts(struct usb_serial_port *port, int on);
-
-static int option_startup(struct usb_serial *serial);
-static void option_disconnect(struct usb_serial *serial);
-static void option_release(struct usb_serial *serial);
-static int option_write_room(struct tty_struct *tty);
-
+static int option_send_setup(struct usb_serial_port *port);
static void option_instat_callback(struct urb *urb);
-static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static int option_chars_in_buffer(struct tty_struct *tty);
-static void option_set_termios(struct tty_struct *tty,
- struct usb_serial_port *port, struct ktermios *old);
-static int option_tiocmget(struct tty_struct *tty, struct file *file);
-static int option_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
-static int option_send_setup(struct usb_serial_port *port);
-#ifdef CONFIG_PM
-static int option_suspend(struct usb_serial *serial, pm_message_t message);
-static int option_resume(struct usb_serial *serial);
-#endif
-
/* Vendor and product IDs */
#define OPTION_VENDOR_ID 0x0AF0
#define OPTION_PRODUCT_COLT 0x5000
@@ -380,6 +359,10 @@
#define CINTERION_VENDOR_ID 0x0681
+/* Olivetti products */
+#define OLIVETTI_VENDOR_ID 0x0b3c
+#define OLIVETTI_PRODUCT_OLICARD100 0xc000
+
/* some devices interfaces need special handling due to a number of reasons */
enum option_blacklist_reason {
OPTION_BLACKLIST_NONE = 0,
@@ -675,6 +658,180 @@
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0160, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0161, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0162, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1010, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1012, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1057, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1058, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1059, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1060, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1061, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1062, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1063, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1064, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1065, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1066, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1067, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1068, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1069, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1070, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1071, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1072, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1073, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1074, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1075, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1076, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1077, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1078, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1079, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1080, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1081, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1082, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1083, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1084, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1085, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1086, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1087, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1088, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1089, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1090, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1091, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1092, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1093, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1094, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1095, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1096, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1097, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1098, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1099, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1100, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1101, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1102, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1103, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1104, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1105, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1106, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1107, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1108, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1109, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1110, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1111, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1112, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1113, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1114, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1115, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1116, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1117, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1118, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1119, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1120, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1121, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1122, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1123, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1124, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1125, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1126, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1127, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1128, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1129, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1130, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1131, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1132, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1133, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1134, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1135, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1136, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1137, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1138, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1139, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1140, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1141, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1142, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1143, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1144, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1145, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1146, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1147, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1148, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1149, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1150, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1151, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1152, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1153, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1154, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1155, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1156, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1157, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1158, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1159, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1160, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1161, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1162, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1163, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1164, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1165, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1166, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1167, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1168, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1169, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1170, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1244, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1245, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1246, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1247, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1248, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1249, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1250, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1251, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1252, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1253, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1254, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1255, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1256, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1257, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1258, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1259, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1260, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1261, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1262, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1263, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1264, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1265, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1266, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1267, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1268, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1269, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1270, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1271, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1272, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1273, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1274, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1275, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1276, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1277, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1278, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1279, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1280, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1281, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1282, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1283, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1284, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1285, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1286, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1287, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1288, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1289, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1290, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1291, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1292, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1293, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1294, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1295, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1296, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1297, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1298, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1299, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1300, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0014, 0xff, 0xff, 0xff) }, /* ZTE CDMA products */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0027, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0059, 0xff, 0xff, 0xff) },
@@ -726,6 +883,8 @@
{ USB_DEVICE(PIRELLI_VENDOR_ID, PIRELLI_PRODUCT_1012)},
{ USB_DEVICE(CINTERION_VENDOR_ID, 0x0047) },
+
+ { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
@@ -757,22 +916,22 @@
.id_table = option_ids,
.num_ports = 1,
.probe = option_probe,
- .open = option_open,
- .close = option_close,
- .dtr_rts = option_dtr_rts,
- .write = option_write,
- .write_room = option_write_room,
- .chars_in_buffer = option_chars_in_buffer,
- .set_termios = option_set_termios,
- .tiocmget = option_tiocmget,
- .tiocmset = option_tiocmset,
- .attach = option_startup,
- .disconnect = option_disconnect,
- .release = option_release,
+ .open = usb_wwan_open,
+ .close = usb_wwan_close,
+ .dtr_rts = usb_wwan_dtr_rts,
+ .write = usb_wwan_write,
+ .write_room = usb_wwan_write_room,
+ .chars_in_buffer = usb_wwan_chars_in_buffer,
+ .set_termios = usb_wwan_set_termios,
+ .tiocmget = usb_wwan_tiocmget,
+ .tiocmset = usb_wwan_tiocmset,
+ .attach = usb_wwan_startup,
+ .disconnect = usb_wwan_disconnect,
+ .release = usb_wwan_release,
.read_int_callback = option_instat_callback,
#ifdef CONFIG_PM
- .suspend = option_suspend,
- .resume = option_resume,
+ .suspend = usb_wwan_suspend,
+ .resume = usb_wwan_resume,
#endif
};
@@ -785,13 +944,6 @@
#define IN_BUFLEN 4096
#define OUT_BUFLEN 4096
-struct option_intf_private {
- spinlock_t susp_lock;
- unsigned int suspended:1;
- int in_flight;
- struct option_blacklist_info *blacklist_info;
-};
-
struct option_port_private {
/* Input endpoints and buffer for this port */
struct urb *in_urbs[N_IN_URB];
@@ -848,8 +1000,7 @@
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
- struct option_intf_private *data;
-
+ struct usb_wwan_intf_private *data;
/* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */
if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID &&
serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 &&
@@ -862,11 +1013,13 @@
serial->interface->cur_altsetting->desc.bInterfaceClass != 0xff)
return -ENODEV;
- data = serial->private = kzalloc(sizeof(struct option_intf_private), GFP_KERNEL);
+ data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL);
+
if (!data)
return -ENOMEM;
+ data->send_setup = option_send_setup;
spin_lock_init(&data->susp_lock);
- data->blacklist_info = (struct option_blacklist_info*) id->driver_info;
+ data->private = (void *)id->driver_info;
return 0;
}
@@ -887,194 +1040,6 @@
return OPTION_BLACKLIST_NONE;
}
-static void option_set_termios(struct tty_struct *tty,
- struct usb_serial_port *port, struct ktermios *old_termios)
-{
- dbg("%s", __func__);
- /* Doesn't support option setting */
- tty_termios_copy_hw(tty->termios, old_termios);
- option_send_setup(port);
-}
-
-static int option_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct usb_serial_port *port = tty->driver_data;
- unsigned int value;
- struct option_port_private *portdata;
-
- portdata = usb_get_serial_port_data(port);
-
- value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
- ((portdata->dtr_state) ? TIOCM_DTR : 0) |
- ((portdata->cts_state) ? TIOCM_CTS : 0) |
- ((portdata->dsr_state) ? TIOCM_DSR : 0) |
- ((portdata->dcd_state) ? TIOCM_CAR : 0) |
- ((portdata->ri_state) ? TIOCM_RNG : 0);
-
- return value;
-}
-
-static int option_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct option_port_private *portdata;
-
- portdata = usb_get_serial_port_data(port);
-
- /* FIXME: what locks portdata fields ? */
- if (set & TIOCM_RTS)
- portdata->rts_state = 1;
- if (set & TIOCM_DTR)
- portdata->dtr_state = 1;
-
- if (clear & TIOCM_RTS)
- portdata->rts_state = 0;
- if (clear & TIOCM_DTR)
- portdata->dtr_state = 0;
- return option_send_setup(port);
-}
-
-/* Write */
-static int option_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct option_port_private *portdata;
- struct option_intf_private *intfdata;
- int i;
- int left, todo;
- struct urb *this_urb = NULL; /* spurious */
- int err;
- unsigned long flags;
-
- portdata = usb_get_serial_port_data(port);
- intfdata = port->serial->private;
-
- dbg("%s: write (%d chars)", __func__, count);
-
- i = 0;
- left = count;
- for (i = 0; left > 0 && i < N_OUT_URB; i++) {
- todo = left;
- if (todo > OUT_BUFLEN)
- todo = OUT_BUFLEN;
-
- this_urb = portdata->out_urbs[i];
- if (test_and_set_bit(i, &portdata->out_busy)) {
- if (time_before(jiffies,
- portdata->tx_start_time[i] + 10 * HZ))
- continue;
- usb_unlink_urb(this_urb);
- continue;
- }
- dbg("%s: endpoint %d buf %d", __func__,
- usb_pipeendpoint(this_urb->pipe), i);
-
- err = usb_autopm_get_interface_async(port->serial->interface);
- if (err < 0)
- break;
-
- /* send the data */
- memcpy(this_urb->transfer_buffer, buf, todo);
- this_urb->transfer_buffer_length = todo;
-
- spin_lock_irqsave(&intfdata->susp_lock, flags);
- if (intfdata->suspended) {
- usb_anchor_urb(this_urb, &portdata->delayed);
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
- } else {
- intfdata->in_flight++;
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
- err = usb_submit_urb(this_urb, GFP_ATOMIC);
- if (err) {
- dbg("usb_submit_urb %p (write bulk) failed "
- "(%d)", this_urb, err);
- clear_bit(i, &portdata->out_busy);
- spin_lock_irqsave(&intfdata->susp_lock, flags);
- intfdata->in_flight--;
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
- continue;
- }
- }
-
- portdata->tx_start_time[i] = jiffies;
- buf += todo;
- left -= todo;
- }
-
- count -= left;
- dbg("%s: wrote (did %d)", __func__, count);
- return count;
-}
-
-static void option_indat_callback(struct urb *urb)
-{
- int err;
- int endpoint;
- struct usb_serial_port *port;
- struct tty_struct *tty;
- unsigned char *data = urb->transfer_buffer;
- int status = urb->status;
-
- dbg("%s: %p", __func__, urb);
-
- endpoint = usb_pipeendpoint(urb->pipe);
- port = urb->context;
-
- if (status) {
- dbg("%s: nonzero status: %d on endpoint %02x.",
- __func__, status, endpoint);
- } else {
- tty = tty_port_tty_get(&port->port);
- if (urb->actual_length) {
- tty_insert_flip_string(tty, data, urb->actual_length);
- tty_flip_buffer_push(tty);
- } else
- dbg("%s: empty read urb received", __func__);
- tty_kref_put(tty);
-
- /* Resubmit urb so we continue receiving */
- if (status != -ESHUTDOWN) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err && err != -EPERM)
- printk(KERN_ERR "%s: resubmit read urb failed. "
- "(%d)", __func__, err);
- else
- usb_mark_last_busy(port->serial->dev);
- }
-
- }
- return;
-}
-
-static void option_outdat_callback(struct urb *urb)
-{
- struct usb_serial_port *port;
- struct option_port_private *portdata;
- struct option_intf_private *intfdata;
- int i;
-
- dbg("%s", __func__);
-
- port = urb->context;
- intfdata = port->serial->private;
-
- usb_serial_port_softint(port);
- usb_autopm_put_interface_async(port->serial->interface);
- portdata = usb_get_serial_port_data(port);
- spin_lock(&intfdata->susp_lock);
- intfdata->in_flight--;
- spin_unlock(&intfdata->susp_lock);
-
- for (i = 0; i < N_OUT_URB; ++i) {
- if (portdata->out_urbs[i] == urb) {
- smp_mb__before_clear_bit();
- clear_bit(i, &portdata->out_busy);
- break;
- }
- }
-}
-
static void option_instat_callback(struct urb *urb)
{
int err;
@@ -1131,183 +1096,6 @@
}
}
-static int option_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct option_port_private *portdata;
- int i;
- int data_len = 0;
- struct urb *this_urb;
-
- portdata = usb_get_serial_port_data(port);
-
- for (i = 0; i < N_OUT_URB; i++) {
- this_urb = portdata->out_urbs[i];
- if (this_urb && !test_bit(i, &portdata->out_busy))
- data_len += OUT_BUFLEN;
- }
-
- dbg("%s: %d", __func__, data_len);
- return data_len;
-}
-
-static int option_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct option_port_private *portdata;
- int i;
- int data_len = 0;
- struct urb *this_urb;
-
- portdata = usb_get_serial_port_data(port);
-
- for (i = 0; i < N_OUT_URB; i++) {
- this_urb = portdata->out_urbs[i];
- /* FIXME: This locking is insufficient as this_urb may
- go unused during the test */
- if (this_urb && test_bit(i, &portdata->out_busy))
- data_len += this_urb->transfer_buffer_length;
- }
- dbg("%s: %d", __func__, data_len);
- return data_len;
-}
-
-static int option_open(struct tty_struct *tty, struct usb_serial_port *port)
-{
- struct option_port_private *portdata;
- struct option_intf_private *intfdata;
- struct usb_serial *serial = port->serial;
- int i, err;
- struct urb *urb;
-
- portdata = usb_get_serial_port_data(port);
- intfdata = serial->private;
-
- dbg("%s", __func__);
-
- /* Start reading from the IN endpoint */
- for (i = 0; i < N_IN_URB; i++) {
- urb = portdata->in_urbs[i];
- if (!urb)
- continue;
- err = usb_submit_urb(urb, GFP_KERNEL);
- if (err) {
- dbg("%s: submit urb %d failed (%d) %d",
- __func__, i, err,
- urb->transfer_buffer_length);
- }
- }
-
- option_send_setup(port);
-
- serial->interface->needs_remote_wakeup = 1;
- spin_lock_irq(&intfdata->susp_lock);
- portdata->opened = 1;
- spin_unlock_irq(&intfdata->susp_lock);
- usb_autopm_put_interface(serial->interface);
-
- return 0;
-}
-
-static void option_dtr_rts(struct usb_serial_port *port, int on)
-{
- struct usb_serial *serial = port->serial;
- struct option_port_private *portdata;
-
- dbg("%s", __func__);
- portdata = usb_get_serial_port_data(port);
- mutex_lock(&serial->disc_mutex);
- portdata->rts_state = on;
- portdata->dtr_state = on;
- if (serial->dev)
- option_send_setup(port);
- mutex_unlock(&serial->disc_mutex);
-}
-
-
-static void option_close(struct usb_serial_port *port)
-{
- int i;
- struct usb_serial *serial = port->serial;
- struct option_port_private *portdata;
- struct option_intf_private *intfdata = port->serial->private;
-
- dbg("%s", __func__);
- portdata = usb_get_serial_port_data(port);
-
- if (serial->dev) {
- /* Stop reading/writing urbs */
- spin_lock_irq(&intfdata->susp_lock);
- portdata->opened = 0;
- spin_unlock_irq(&intfdata->susp_lock);
-
- for (i = 0; i < N_IN_URB; i++)
- usb_kill_urb(portdata->in_urbs[i]);
- for (i = 0; i < N_OUT_URB; i++)
- usb_kill_urb(portdata->out_urbs[i]);
- usb_autopm_get_interface(serial->interface);
- serial->interface->needs_remote_wakeup = 0;
- }
-}
-
-/* Helper functions used by option_setup_urbs */
-static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
- int dir, void *ctx, char *buf, int len,
- void (*callback)(struct urb *))
-{
- struct urb *urb;
-
- if (endpoint == -1)
- return NULL; /* endpoint not needed */
-
- urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
- if (urb == NULL) {
- dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
- return NULL;
- }
-
- /* Fill URB using supplied data. */
- usb_fill_bulk_urb(urb, serial->dev,
- usb_sndbulkpipe(serial->dev, endpoint) | dir,
- buf, len, callback, ctx);
-
- return urb;
-}
-
-/* Setup urbs */
-static void option_setup_urbs(struct usb_serial *serial)
-{
- int i, j;
- struct usb_serial_port *port;
- struct option_port_private *portdata;
-
- dbg("%s", __func__);
-
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- portdata = usb_get_serial_port_data(port);
-
- /* Do indat endpoints first */
- for (j = 0; j < N_IN_URB; ++j) {
- portdata->in_urbs[j] = option_setup_urb(serial,
- port->bulk_in_endpointAddress,
- USB_DIR_IN, port,
- portdata->in_buffer[j],
- IN_BUFLEN, option_indat_callback);
- }
-
- /* outdat endpoints */
- for (j = 0; j < N_OUT_URB; ++j) {
- portdata->out_urbs[j] = option_setup_urb(serial,
- port->bulk_out_endpointAddress,
- USB_DIR_OUT, port,
- portdata->out_buffer[j],
- OUT_BUFLEN, option_outdat_callback);
- }
- }
-}
-
-
/** send RTS/DTR state to the port.
*
* This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
@@ -1316,15 +1104,16 @@
static int option_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
- struct option_intf_private *intfdata =
- (struct option_intf_private *) serial->private;
+ struct usb_wwan_intf_private *intfdata =
+ (struct usb_wwan_intf_private *) serial->private;
struct option_port_private *portdata;
int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
int val = 0;
dbg("%s", __func__);
- if (is_blacklisted(ifNum, intfdata->blacklist_info) ==
- OPTION_BLACKLIST_SENDSETUP) {
+ if (is_blacklisted(ifNum,
+ (struct option_blacklist_info *) intfdata->private)
+ == OPTION_BLACKLIST_SENDSETUP) {
dbg("No send_setup on blacklisted interface #%d\n", ifNum);
return -EIO;
}
@@ -1341,224 +1130,6 @@
0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
-static int option_startup(struct usb_serial *serial)
-{
- int i, j, err;
- struct usb_serial_port *port;
- struct option_port_private *portdata;
- u8 *buffer;
-
- dbg("%s", __func__);
-
- /* Now setup per port private data */
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
- if (!portdata) {
- dbg("%s: kmalloc for option_port_private (%d) failed!.",
- __func__, i);
- return 1;
- }
- init_usb_anchor(&portdata->delayed);
-
- for (j = 0; j < N_IN_URB; j++) {
- buffer = (u8 *)__get_free_page(GFP_KERNEL);
- if (!buffer)
- goto bail_out_error;
- portdata->in_buffer[j] = buffer;
- }
-
- for (j = 0; j < N_OUT_URB; j++) {
- buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
- if (!buffer)
- goto bail_out_error2;
- portdata->out_buffer[j] = buffer;
- }
-
- usb_set_serial_port_data(port, portdata);
-
- if (!port->interrupt_in_urb)
- continue;
- err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
- if (err)
- dbg("%s: submit irq_in urb failed %d",
- __func__, err);
- }
- option_setup_urbs(serial);
- return 0;
-
-bail_out_error2:
- for (j = 0; j < N_OUT_URB; j++)
- kfree(portdata->out_buffer[j]);
-bail_out_error:
- for (j = 0; j < N_IN_URB; j++)
- if (portdata->in_buffer[j])
- free_page((unsigned long)portdata->in_buffer[j]);
- kfree(portdata);
- return 1;
-}
-
-static void stop_read_write_urbs(struct usb_serial *serial)
-{
- int i, j;
- struct usb_serial_port *port;
- struct option_port_private *portdata;
-
- /* Stop reading/writing urbs */
- for (i = 0; i < serial->num_ports; ++i) {
- port = serial->port[i];
- portdata = usb_get_serial_port_data(port);
- for (j = 0; j < N_IN_URB; j++)
- usb_kill_urb(portdata->in_urbs[j]);
- for (j = 0; j < N_OUT_URB; j++)
- usb_kill_urb(portdata->out_urbs[j]);
- }
-}
-
-static void option_disconnect(struct usb_serial *serial)
-{
- dbg("%s", __func__);
-
- stop_read_write_urbs(serial);
-}
-
-static void option_release(struct usb_serial *serial)
-{
- int i, j;
- struct usb_serial_port *port;
- struct option_port_private *portdata;
-
- dbg("%s", __func__);
-
- /* Now free them */
- for (i = 0; i < serial->num_ports; ++i) {
- port = serial->port[i];
- portdata = usb_get_serial_port_data(port);
-
- for (j = 0; j < N_IN_URB; j++) {
- if (portdata->in_urbs[j]) {
- usb_free_urb(portdata->in_urbs[j]);
- free_page((unsigned long)
- portdata->in_buffer[j]);
- portdata->in_urbs[j] = NULL;
- }
- }
- for (j = 0; j < N_OUT_URB; j++) {
- if (portdata->out_urbs[j]) {
- usb_free_urb(portdata->out_urbs[j]);
- kfree(portdata->out_buffer[j]);
- portdata->out_urbs[j] = NULL;
- }
- }
- }
-
- /* Now free per port private data */
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- kfree(usb_get_serial_port_data(port));
- }
-}
-
-#ifdef CONFIG_PM
-static int option_suspend(struct usb_serial *serial, pm_message_t message)
-{
- struct option_intf_private *intfdata = serial->private;
- int b;
-
- dbg("%s entered", __func__);
-
- if (message.event & PM_EVENT_AUTO) {
- spin_lock_irq(&intfdata->susp_lock);
- b = intfdata->in_flight;
- spin_unlock_irq(&intfdata->susp_lock);
-
- if (b)
- return -EBUSY;
- }
-
- spin_lock_irq(&intfdata->susp_lock);
- intfdata->suspended = 1;
- spin_unlock_irq(&intfdata->susp_lock);
- stop_read_write_urbs(serial);
-
- return 0;
-}
-
-static void play_delayed(struct usb_serial_port *port)
-{
- struct option_intf_private *data;
- struct option_port_private *portdata;
- struct urb *urb;
- int err;
-
- portdata = usb_get_serial_port_data(port);
- data = port->serial->private;
- while ((urb = usb_get_from_anchor(&portdata->delayed))) {
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (!err)
- data->in_flight++;
- }
-}
-
-static int option_resume(struct usb_serial *serial)
-{
- int i, j;
- struct usb_serial_port *port;
- struct option_intf_private *intfdata = serial->private;
- struct option_port_private *portdata;
- struct urb *urb;
- int err = 0;
-
- dbg("%s entered", __func__);
- /* get the interrupt URBs resubmitted unconditionally */
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- if (!port->interrupt_in_urb) {
- dbg("%s: No interrupt URB for port %d", __func__, i);
- continue;
- }
- err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
- dbg("Submitted interrupt URB for port %d (result %d)", i, err);
- if (err < 0) {
- err("%s: Error %d for interrupt URB of port%d",
- __func__, err, i);
- goto err_out;
- }
- }
-
- for (i = 0; i < serial->num_ports; i++) {
- /* walk all ports */
- port = serial->port[i];
- portdata = usb_get_serial_port_data(port);
-
- /* skip closed ports */
- spin_lock_irq(&intfdata->susp_lock);
- if (!portdata->opened) {
- spin_unlock_irq(&intfdata->susp_lock);
- continue;
- }
-
- for (j = 0; j < N_IN_URB; j++) {
- urb = portdata->in_urbs[j];
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err < 0) {
- err("%s: Error %d for bulk URB %d",
- __func__, err, i);
- spin_unlock_irq(&intfdata->susp_lock);
- goto err_out;
- }
- }
- play_delayed(port);
- spin_unlock_irq(&intfdata->susp_lock);
- }
- spin_lock_irq(&intfdata->susp_lock);
- intfdata->suspended = 0;
- spin_unlock_irq(&intfdata->susp_lock);
-err_out:
- return err;
-}
-#endif
-
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index deeacde..e199b0f 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -51,12 +51,13 @@
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/uaccess.h>
+#include <linux/kfifo.h>
#include "oti6858.h"
#define OTI6858_DESCRIPTION \
"Ours Technology Inc. OTi-6858 USB to serial adapter driver"
#define OTI6858_AUTHOR "Tomasz Michal Lukaszewski <FIXME@FIXME>"
-#define OTI6858_VERSION "0.1"
+#define OTI6858_VERSION "0.2"
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(OTI6858_VENDOR_ID, OTI6858_PRODUCT_ID) },
@@ -75,18 +76,6 @@
static int debug;
-
-/* buffering code, copied from pl2303 driver */
-#define PL2303_BUF_SIZE 1024
-#define PL2303_TMP_BUF_SIZE 1024
-
-struct oti6858_buf {
- unsigned int buf_size;
- char *buf_buf;
- char *buf_get;
- char *buf_put;
-};
-
/* requests */
#define OTI6858_REQ_GET_STATUS (USB_DIR_IN | USB_TYPE_VENDOR | 0x00)
#define OTI6858_REQ_T_GET_STATUS 0x01
@@ -161,18 +150,6 @@
static int oti6858_startup(struct usb_serial *serial);
static void oti6858_release(struct usb_serial *serial);
-/* functions operating on buffers */
-static struct oti6858_buf *oti6858_buf_alloc(unsigned int size);
-static void oti6858_buf_free(struct oti6858_buf *pb);
-static void oti6858_buf_clear(struct oti6858_buf *pb);
-static unsigned int oti6858_buf_data_avail(struct oti6858_buf *pb);
-static unsigned int oti6858_buf_space_avail(struct oti6858_buf *pb);
-static unsigned int oti6858_buf_put(struct oti6858_buf *pb, const char *buf,
- unsigned int count);
-static unsigned int oti6858_buf_get(struct oti6858_buf *pb, char *buf,
- unsigned int count);
-
-
/* device info */
static struct usb_serial_driver oti6858_device = {
.driver = {
@@ -201,7 +178,6 @@
struct oti6858_private {
spinlock_t lock;
- struct oti6858_buf *buf;
struct oti6858_control_pkt status;
struct {
@@ -295,7 +271,7 @@
}
}
-void send_data(struct work_struct *work)
+static void send_data(struct work_struct *work)
{
struct oti6858_private *priv = container_of(work,
struct oti6858_private, delayed_write_work.work);
@@ -314,9 +290,12 @@
return;
}
priv->flags.write_urb_in_use = 1;
-
- count = oti6858_buf_data_avail(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
+
+ spin_lock_irqsave(&port->lock, flags);
+ count = kfifo_len(&port->write_fifo);
+ spin_unlock_irqrestore(&port->lock, flags);
+
if (count > port->bulk_out_size)
count = port->bulk_out_size;
@@ -350,10 +329,9 @@
return;
}
- spin_lock_irqsave(&priv->lock, flags);
- oti6858_buf_get(priv->buf, port->write_urb->transfer_buffer, count);
- spin_unlock_irqrestore(&priv->lock, flags);
-
+ count = kfifo_out_locked(&port->write_fifo,
+ port->write_urb->transfer_buffer,
+ count, &port->lock);
port->write_urb->transfer_buffer_length = count;
port->write_urb->dev = port->serial->dev;
result = usb_submit_urb(port->write_urb, GFP_NOIO);
@@ -376,11 +354,6 @@
priv = kzalloc(sizeof(struct oti6858_private), GFP_KERNEL);
if (!priv)
break;
- priv->buf = oti6858_buf_alloc(PL2303_BUF_SIZE);
- if (priv->buf == NULL) {
- kfree(priv);
- break;
- }
spin_lock_init(&priv->lock);
init_waitqueue_head(&priv->intr_wait);
@@ -397,7 +370,6 @@
for (--i; i >= 0; --i) {
priv = usb_get_serial_port_data(serial->port[i]);
- oti6858_buf_free(priv->buf);
kfree(priv);
usb_set_serial_port_data(serial->port[i], NULL);
}
@@ -407,17 +379,12 @@
static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
- struct oti6858_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
dbg("%s(port = %d, count = %d)", __func__, port->number, count);
if (!count)
return count;
- spin_lock_irqsave(&priv->lock, flags);
- count = oti6858_buf_put(priv->buf, buf, count);
- spin_unlock_irqrestore(&priv->lock, flags);
+ count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock);
return count;
}
@@ -425,15 +392,14 @@
static int oti6858_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct oti6858_private *priv = usb_get_serial_port_data(port);
int room = 0;
unsigned long flags;
dbg("%s(port = %d)", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
- room = oti6858_buf_space_avail(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_lock_irqsave(&port->lock, flags);
+ room = kfifo_avail(&port->write_fifo);
+ spin_unlock_irqrestore(&port->lock, flags);
return room;
}
@@ -441,15 +407,14 @@
static int oti6858_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- struct oti6858_private *priv = usb_get_serial_port_data(port);
int chars = 0;
unsigned long flags;
dbg("%s(port = %d)", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
- chars = oti6858_buf_data_avail(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
+ spin_lock_irqsave(&port->lock, flags);
+ chars = kfifo_len(&port->write_fifo);
+ spin_unlock_irqrestore(&port->lock, flags);
return chars;
}
@@ -640,10 +605,10 @@
dbg("%s(port = %d)", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irqsave(&port->lock, flags);
/* clear out any remaining data in the buffer */
- oti6858_buf_clear(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
+ kfifo_reset_out(&port->write_fifo);
+ spin_unlock_irqrestore(&port->lock, flags);
dbg("%s(): after buf_clear()", __func__);
@@ -785,18 +750,12 @@
static void oti6858_release(struct usb_serial *serial)
{
- struct oti6858_private *priv;
int i;
dbg("%s()", __func__);
- for (i = 0; i < serial->num_ports; ++i) {
- priv = usb_get_serial_port_data(serial->port[i]);
- if (priv) {
- oti6858_buf_free(priv->buf);
- kfree(priv);
- }
- }
+ for (i = 0; i < serial->num_ports; ++i)
+ kfree(usb_get_serial_port_data(serial->port[i]));
}
static void oti6858_read_int_callback(struct urb *urb)
@@ -889,10 +848,14 @@
}
} else if (!transient) {
unsigned long flags;
+ int count;
+
+ spin_lock_irqsave(&port->lock, flags);
+ count = kfifo_len(&port->write_fifo);
+ spin_unlock_irqrestore(&port->lock, flags);
spin_lock_irqsave(&priv->lock, flags);
- if (priv->flags.write_urb_in_use == 0
- && oti6858_buf_data_avail(priv->buf) != 0) {
+ if (priv->flags.write_urb_in_use == 0 && count != 0) {
schedule_delayed_work(&priv->delayed_write_work, 0);
resubmit = 0;
}
@@ -1014,165 +977,6 @@
}
}
-
-/*
- * oti6858_buf_alloc
- *
- * Allocate a circular buffer and all associated memory.
- */
-static struct oti6858_buf *oti6858_buf_alloc(unsigned int size)
-{
- struct oti6858_buf *pb;
-
- if (size == 0)
- return NULL;
-
- pb = kmalloc(sizeof(struct oti6858_buf), GFP_KERNEL);
- if (pb == NULL)
- return NULL;
-
- pb->buf_buf = kmalloc(size, GFP_KERNEL);
- if (pb->buf_buf == NULL) {
- kfree(pb);
- return NULL;
- }
-
- pb->buf_size = size;
- pb->buf_get = pb->buf_put = pb->buf_buf;
-
- return pb;
-}
-
-/*
- * oti6858_buf_free
- *
- * Free the buffer and all associated memory.
- */
-static void oti6858_buf_free(struct oti6858_buf *pb)
-{
- if (pb) {
- kfree(pb->buf_buf);
- kfree(pb);
- }
-}
-
-/*
- * oti6858_buf_clear
- *
- * Clear out all data in the circular buffer.
- */
-static void oti6858_buf_clear(struct oti6858_buf *pb)
-{
- if (pb != NULL) {
- /* equivalent to a get of all data available */
- pb->buf_get = pb->buf_put;
- }
-}
-
-/*
- * oti6858_buf_data_avail
- *
- * Return the number of bytes of data available in the circular
- * buffer.
- */
-static unsigned int oti6858_buf_data_avail(struct oti6858_buf *pb)
-{
- if (pb == NULL)
- return 0;
- return (pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size;
-}
-
-/*
- * oti6858_buf_space_avail
- *
- * Return the number of bytes of space available in the circular
- * buffer.
- */
-static unsigned int oti6858_buf_space_avail(struct oti6858_buf *pb)
-{
- if (pb == NULL)
- return 0;
- return (pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size;
-}
-
-/*
- * oti6858_buf_put
- *
- * Copy data data from a user buffer and put it into the circular buffer.
- * Restrict to the amount of space available.
- *
- * Return the number of bytes copied.
- */
-static unsigned int oti6858_buf_put(struct oti6858_buf *pb, const char *buf,
- unsigned int count)
-{
- unsigned int len;
-
- if (pb == NULL)
- return 0;
-
- len = oti6858_buf_space_avail(pb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = pb->buf_buf + pb->buf_size - pb->buf_put;
- if (count > len) {
- memcpy(pb->buf_put, buf, len);
- memcpy(pb->buf_buf, buf+len, count - len);
- pb->buf_put = pb->buf_buf + count - len;
- } else {
- memcpy(pb->buf_put, buf, count);
- if (count < len)
- pb->buf_put += count;
- else /* count == len */
- pb->buf_put = pb->buf_buf;
- }
-
- return count;
-}
-
-/*
- * oti6858_buf_get
- *
- * Get data from the circular buffer and copy to the given buffer.
- * Restrict to the amount of data available.
- *
- * Return the number of bytes copied.
- */
-static unsigned int oti6858_buf_get(struct oti6858_buf *pb, char *buf,
- unsigned int count)
-{
- unsigned int len;
-
- if (pb == NULL)
- return 0;
-
- len = oti6858_buf_data_avail(pb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = pb->buf_buf + pb->buf_size - pb->buf_get;
- if (count > len) {
- memcpy(buf, pb->buf_get, len);
- memcpy(buf+len, pb->buf_buf, count - len);
- pb->buf_get = pb->buf_buf + count - len;
- } else {
- memcpy(buf, pb->buf_get, count);
- if (count < len)
- pb->buf_get += count;
- else /* count == len */
- pb->buf_get = pb->buf_buf;
- }
-
- return count;
-}
-
/* module description and (de)initialization */
static int __init oti6858_init(void)
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index c28b160..6b60018 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -40,16 +40,6 @@
#define PL2303_CLOSING_WAIT (30*HZ)
-#define PL2303_BUF_SIZE 1024
-#define PL2303_TMP_BUF_SIZE 1024
-
-struct pl2303_buf {
- unsigned int buf_size;
- char *buf_buf;
- char *buf_get;
- char *buf_put;
-};
-
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) },
{ USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) },
@@ -157,173 +147,12 @@
struct pl2303_private {
spinlock_t lock;
- struct pl2303_buf *buf;
- int write_urb_in_use;
wait_queue_head_t delta_msr_wait;
u8 line_control;
u8 line_status;
enum pl2303_type type;
};
-/*
- * pl2303_buf_alloc
- *
- * Allocate a circular buffer and all associated memory.
- */
-static struct pl2303_buf *pl2303_buf_alloc(unsigned int size)
-{
- struct pl2303_buf *pb;
-
- if (size == 0)
- return NULL;
-
- pb = kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
- if (pb == NULL)
- return NULL;
-
- pb->buf_buf = kmalloc(size, GFP_KERNEL);
- if (pb->buf_buf == NULL) {
- kfree(pb);
- return NULL;
- }
-
- pb->buf_size = size;
- pb->buf_get = pb->buf_put = pb->buf_buf;
-
- return pb;
-}
-
-/*
- * pl2303_buf_free
- *
- * Free the buffer and all associated memory.
- */
-static void pl2303_buf_free(struct pl2303_buf *pb)
-{
- if (pb) {
- kfree(pb->buf_buf);
- kfree(pb);
- }
-}
-
-/*
- * pl2303_buf_clear
- *
- * Clear out all data in the circular buffer.
- */
-static void pl2303_buf_clear(struct pl2303_buf *pb)
-{
- if (pb != NULL)
- pb->buf_get = pb->buf_put;
- /* equivalent to a get of all data available */
-}
-
-/*
- * pl2303_buf_data_avail
- *
- * Return the number of bytes of data available in the circular
- * buffer.
- */
-static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb)
-{
- if (pb == NULL)
- return 0;
-
- return (pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size;
-}
-
-/*
- * pl2303_buf_space_avail
- *
- * Return the number of bytes of space available in the circular
- * buffer.
- */
-static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb)
-{
- if (pb == NULL)
- return 0;
-
- return (pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size;
-}
-
-/*
- * pl2303_buf_put
- *
- * Copy data data from a user buffer and put it into the circular buffer.
- * Restrict to the amount of space available.
- *
- * Return the number of bytes copied.
- */
-static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf,
- unsigned int count)
-{
- unsigned int len;
-
- if (pb == NULL)
- return 0;
-
- len = pl2303_buf_space_avail(pb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = pb->buf_buf + pb->buf_size - pb->buf_put;
- if (count > len) {
- memcpy(pb->buf_put, buf, len);
- memcpy(pb->buf_buf, buf+len, count - len);
- pb->buf_put = pb->buf_buf + count - len;
- } else {
- memcpy(pb->buf_put, buf, count);
- if (count < len)
- pb->buf_put += count;
- else /* count == len */
- pb->buf_put = pb->buf_buf;
- }
-
- return count;
-}
-
-/*
- * pl2303_buf_get
- *
- * Get data from the circular buffer and copy to the given buffer.
- * Restrict to the amount of data available.
- *
- * Return the number of bytes copied.
- */
-static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf,
- unsigned int count)
-{
- unsigned int len;
-
- if (pb == NULL)
- return 0;
-
- len = pl2303_buf_data_avail(pb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = pb->buf_buf + pb->buf_size - pb->buf_get;
- if (count > len) {
- memcpy(buf, pb->buf_get, len);
- memcpy(buf+len, pb->buf_buf, count - len);
- pb->buf_get = pb->buf_buf + count - len;
- } else {
- memcpy(buf, pb->buf_get, count);
- if (count < len)
- pb->buf_get += count;
- else /* count == len */
- pb->buf_get = pb->buf_buf;
- }
-
- return count;
-}
-
static int pl2303_vendor_read(__u16 value, __u16 index,
struct usb_serial *serial, unsigned char *buf)
{
@@ -372,11 +201,6 @@
if (!priv)
goto cleanup;
spin_lock_init(&priv->lock);
- priv->buf = pl2303_buf_alloc(PL2303_BUF_SIZE);
- if (priv->buf == NULL) {
- kfree(priv);
- goto cleanup;
- }
init_waitqueue_head(&priv->delta_msr_wait);
priv->type = type;
usb_set_serial_port_data(serial->port[i], priv);
@@ -404,7 +228,6 @@
kfree(buf);
for (--i; i >= 0; --i) {
priv = usb_get_serial_port_data(serial->port[i]);
- pl2303_buf_free(priv->buf);
kfree(priv);
usb_set_serial_port_data(serial->port[i], NULL);
}
@@ -422,102 +245,6 @@
return retval;
}
-static void pl2303_send(struct usb_serial_port *port)
-{
- int count, result;
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->write_urb_in_use) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- count = pl2303_buf_get(priv->buf, port->write_urb->transfer_buffer,
- port->bulk_out_size);
-
- if (count == 0) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- priv->write_urb_in_use = 1;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- usb_serial_debug_data(debug, &port->dev, __func__, count,
- port->write_urb->transfer_buffer);
-
- port->write_urb->transfer_buffer_length = count;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result) {
- dev_err(&port->dev, "%s - failed submitting write urb,"
- " error %d\n", __func__, result);
- priv->write_urb_in_use = 0;
- /* TODO: reschedule pl2303_send */
- }
-
- usb_serial_port_softint(port);
-}
-
-static int pl2303_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
- dbg("%s - port %d, %d bytes", __func__, port->number, count);
-
- if (!count)
- return count;
-
- spin_lock_irqsave(&priv->lock, flags);
- count = pl2303_buf_put(priv->buf, buf, count);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- pl2303_send(port);
-
- return count;
-}
-
-static int pl2303_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- int room = 0;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->lock, flags);
- room = pl2303_buf_space_avail(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- dbg("%s - returns %d", __func__, room);
- return room;
-}
-
-static int pl2303_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- int chars = 0;
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->lock, flags);
- chars = pl2303_buf_data_avail(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- dbg("%s - returns %d", __func__, chars);
- return chars;
-}
-
static void pl2303_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
@@ -729,22 +456,10 @@
static void pl2303_close(struct usb_serial_port *port)
{
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
dbg("%s - port %d", __func__, port->number);
- spin_lock_irqsave(&priv->lock, flags);
- /* clear out any remaining data in the buffer */
- pl2303_buf_clear(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* shutdown our urbs */
- dbg("%s - shutting down urbs", __func__);
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
usb_kill_urb(port->interrupt_in_urb);
-
}
static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
@@ -770,10 +485,8 @@
pl2303_set_termios(tty, port, &tmp_termios);
dbg("%s - submitting read urb", __func__);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
+ result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL);
if (result) {
- dev_err(&port->dev, "%s - failed submitting read urb,"
- " error %d\n", __func__, result);
pl2303_close(port);
return -EPROTO;
}
@@ -953,10 +666,7 @@
for (i = 0; i < serial->num_ports; ++i) {
priv = usb_get_serial_port_data(serial->port[i]);
- if (priv) {
- pl2303_buf_free(priv->buf);
- kfree(priv);
- }
+ kfree(priv);
}
}
@@ -1037,13 +747,31 @@
__func__, retval);
}
-static void pl2303_push_data(struct tty_struct *tty,
- struct usb_serial_port *port, struct urb *urb,
- u8 line_status)
+static void pl2303_process_read_urb(struct urb *urb)
{
+ struct usb_serial_port *port = urb->context;
+ struct pl2303_private *priv = usb_get_serial_port_data(port);
+ struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
- /* get tty_flag from status */
char tty_flag = TTY_NORMAL;
+ unsigned long flags;
+ u8 line_status;
+ int i;
+
+ /* update line status */
+ spin_lock_irqsave(&priv->lock, flags);
+ line_status = priv->line_status;
+ priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ wake_up_interruptible(&priv->delta_msr_wait);
+
+ if (!urb->actual_length)
+ return;
+
+ tty = tty_port_tty_get(&port->port);
+ if (!tty)
+ return;
+
/* break takes precedence over parity, */
/* which takes precedence over framing errors */
if (line_status & UART_BREAK_ERROR)
@@ -1058,107 +786,17 @@
if (line_status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- if (tty_flag == TTY_NORMAL && !(port->console && port->sysrq))
- tty_insert_flip_string(tty, data, urb->actual_length);
- else {
- int i;
+ if (port->port.console && port->sysrq) {
for (i = 0; i < urb->actual_length; ++i)
if (!usb_serial_handle_sysrq_char(tty, port, data[i]))
tty_insert_flip_char(tty, data[i], tty_flag);
+ } else {
+ tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
+ urb->actual_length);
}
+
tty_flip_buffer_push(tty);
-}
-
-static void pl2303_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- struct tty_struct *tty;
- unsigned long flags;
- int result;
- int status = urb->status;
- u8 line_status;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - urb status = %d", __func__, status);
- if (status == -EPROTO) {
- /* PL2303 mysteriously fails with -EPROTO reschedule
- * the read */
- dbg("%s - caught -EPROTO, resubmitting the urb",
- __func__);
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev, "%s - failed"
- " resubmitting read urb, error %d\n",
- __func__, result);
- return;
- }
- dbg("%s - unable to handle the error, exiting.", __func__);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, urb->transfer_buffer);
-
- spin_lock_irqsave(&priv->lock, flags);
- line_status = priv->line_status;
- priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
- spin_unlock_irqrestore(&priv->lock, flags);
- wake_up_interruptible(&priv->delta_msr_wait);
-
- tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- pl2303_push_data(tty, port, urb, line_status);
- }
tty_kref_put(tty);
- /* Schedule the next read _if_ we are still open */
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result && result != -EPERM)
- dev_err(&urb->dev->dev, "%s - failed resubmitting"
- " read urb, error %d\n", __func__, result);
-}
-
-static void pl2303_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct pl2303_private *priv = usb_get_serial_port_data(port);
- int result;
- int status = urb->status;
-
- dbg("%s - port %d", __func__, port->number);
-
- switch (status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __func__,
- status);
- priv->write_urb_in_use = 0;
- return;
- default:
- /* error in the urb, so we have to resubmit it */
- dbg("%s - Overflow in write", __func__);
- dbg("%s - nonzero write bulk status received: %d", __func__,
- status);
- port->write_urb->transfer_buffer_length = 1;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result)
- dev_err(&urb->dev->dev, "%s - failed resubmitting write"
- " urb, error %d\n", __func__, result);
- else
- return;
- }
-
- priv->write_urb_in_use = 0;
-
- /* send any buffered data */
- pl2303_send(port);
}
/* All of the device info needed for the PL2303 SIO serial converter */
@@ -1170,21 +808,19 @@
.id_table = id_table,
.usb_driver = &pl2303_driver,
.num_ports = 1,
+ .bulk_in_size = 256,
+ .bulk_out_size = 256,
.open = pl2303_open,
.close = pl2303_close,
.dtr_rts = pl2303_dtr_rts,
.carrier_raised = pl2303_carrier_raised,
- .write = pl2303_write,
.ioctl = pl2303_ioctl,
.break_ctl = pl2303_break_ctl,
.set_termios = pl2303_set_termios,
.tiocmget = pl2303_tiocmget,
.tiocmset = pl2303_tiocmset,
- .read_bulk_callback = pl2303_read_bulk_callback,
+ .process_read_urb = pl2303_process_read_urb,
.read_int_callback = pl2303_read_int_callback,
- .write_bulk_callback = pl2303_write_bulk_callback,
- .write_room = pl2303_write_room,
- .chars_in_buffer = pl2303_chars_in_buffer,
.attach = pl2303_startup,
.release = pl2303_release,
};
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 23c09b3..a871645 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -5,7 +5,7 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
*/
#define BENQ_VENDOR_ID 0x04a5
@@ -137,5 +137,5 @@
#define SANWA_PRODUCT_ID 0x0001
/* ADLINK ND-6530 RS232,RS485 and RS422 adapter */
-#define ADLINK_VENDOR_ID 0x0b63
-#define ADLINK_ND6530_PRODUCT_ID 0x6530
+#define ADLINK_VENDOR_ID 0x0b63
+#define ADLINK_ND6530_PRODUCT_ID 0x6530
diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c
index 7e3bea2..214a3e5 100644
--- a/drivers/usb/serial/qcaux.c
+++ b/drivers/usb/serial/qcaux.c
@@ -50,6 +50,10 @@
#define SANYO_VENDOR_ID 0x0474
#define SANYO_PRODUCT_KATANA_LX 0x0754 /* SCP-3800 (Katana LX) */
+/* Samsung devices */
+#define SAMSUNG_VENDOR_ID 0x04e8
+#define SAMSUNG_PRODUCT_U520 0x6640 /* SCH-U520 */
+
static struct usb_device_id id_table[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5740, 0xff, 0x00, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(UTSTARCOM_VENDOR_ID, UTSTARCOM_PRODUCT_PC5750, 0xff, 0x00, 0x00) },
@@ -61,6 +65,7 @@
{ USB_DEVICE_AND_INTERFACE_INFO(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CDX650, 0xff, 0xff, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(LG_VENDOR_ID, LG_PRODUCT_VX4400_6000, 0xff, 0xff, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(SANYO_VENDOR_ID, SANYO_PRODUCT_KATANA_LX, 0xff, 0xff, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_U520, 0xff, 0x00, 0x00) },
{ },
};
MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 53a2d5a..04bb759 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -15,6 +15,8 @@
#include <linux/tty_flip.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include <linux/slab.h>
+#include "usb-wwan.h"
#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"
@@ -76,6 +78,8 @@
{USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */
{USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */
{USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */
+ {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */
+ {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
@@ -92,6 +96,8 @@
static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
+ struct usb_wwan_intf_private *data;
+ struct usb_host_interface *intf = serial->interface->cur_altsetting;
int retval = -ENODEV;
__u8 nintf;
__u8 ifnum;
@@ -100,33 +106,45 @@
nintf = serial->dev->actconfig->desc.bNumInterfaces;
dbg("Num Interfaces = %d", nintf);
- ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
+ ifnum = intf->desc.bInterfaceNumber;
dbg("This Interface = %d", ifnum);
+ data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ spin_lock_init(&data->susp_lock);
+
switch (nintf) {
case 1:
/* QDL mode */
- if (serial->interface->num_altsetting == 2) {
- struct usb_host_interface *intf;
-
+ /* Gobi 2000 has a single altsetting, older ones have two */
+ if (serial->interface->num_altsetting == 2)
intf = &serial->interface->altsetting[1];
- if (intf->desc.bNumEndpoints == 2) {
- if (usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
- usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
- dbg("QDL port found");
- retval = usb_set_interface(serial->dev, ifnum, 1);
- if (retval < 0) {
- dev_err(&serial->dev->dev,
- "Could not set interface, error %d\n",
- retval);
- retval = -ENODEV;
- }
- return retval;
- }
+ else if (serial->interface->num_altsetting > 2)
+ break;
+
+ if (intf->desc.bNumEndpoints == 2 &&
+ usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) &&
+ usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) {
+ dbg("QDL port found");
+
+ if (serial->interface->num_altsetting == 1)
+ return 0;
+
+ retval = usb_set_interface(serial->dev, ifnum, 1);
+ if (retval < 0) {
+ dev_err(&serial->dev->dev,
+ "Could not set interface, error %d\n",
+ retval);
+ retval = -ENODEV;
}
+ return retval;
}
break;
+ case 3:
case 4:
/* Composite mode */
if (ifnum == 2) {
@@ -161,6 +179,18 @@
.usb_driver = &qcdriver,
.num_ports = 1,
.probe = qcprobe,
+ .open = usb_wwan_open,
+ .close = usb_wwan_close,
+ .write = usb_wwan_write,
+ .write_room = usb_wwan_write_room,
+ .chars_in_buffer = usb_wwan_chars_in_buffer,
+ .attach = usb_wwan_startup,
+ .disconnect = usb_wwan_disconnect,
+ .release = usb_wwan_release,
+#ifdef CONFIG_PM
+ .suspend = usb_wwan_suspend,
+ .resume = usb_wwan_resume,
+#endif
};
static int __init qcinit(void)
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 43a0cad..a36e231 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -1,6 +1,7 @@
/*
* Safe Encapsulated USB Serial Driver
*
+ * Copyright (C) 2010 Johan Hovold <jhovold@gmail.com>
* Copyright (C) 2001 Lineo
* Copyright (C) 2001 Hewlett-Packard
*
@@ -84,8 +85,8 @@
static int safe = 1;
static int padded = CONFIG_USB_SERIAL_SAFE_PADDED;
-#define DRIVER_VERSION "v0.0b"
-#define DRIVER_AUTHOR "sl@lineo.com, tbr@lineo.com"
+#define DRIVER_VERSION "v0.1"
+#define DRIVER_AUTHOR "sl@lineo.com, tbr@lineo.com, Johan Hovold <jhovold@gmail.com>"
#define DRIVER_DESC "USB Safe Encapsulated Serial"
MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -212,191 +213,80 @@
return fcs;
}
-static void safe_read_bulk_callback(struct urb *urb)
+static void safe_process_read_urb(struct urb *urb)
{
- struct usb_serial_port *port = urb->context;
+ struct usb_serial_port *port = urb->context;
unsigned char *data = urb->transfer_buffer;
unsigned char length = urb->actual_length;
+ int actual_length;
struct tty_struct *tty;
- int result;
- int status = urb->status;
+ __u16 fcs;
- dbg("%s", __func__);
-
- if (status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
+ if (!length)
return;
- }
- dbg("safe_read_bulk_callback length: %d",
- port->read_urb->actual_length);
-#ifdef ECHO_RCV
- {
- int i;
- unsigned char *cp = port->read_urb->transfer_buffer;
- for (i = 0; i < port->read_urb->actual_length; i++) {
- if ((i % 32) == 0)
- printk("\nru[%02x] ", i);
- printk("%02x ", *cp++);
- }
- printk("\n");
- }
-#endif
tty = tty_port_tty_get(&port->port);
- if (safe) {
- __u16 fcs;
- fcs = fcs_compute10(data, length, CRC10_INITFCS);
- if (!fcs) {
- int actual_length = data[length - 2] >> 2;
- if (actual_length <= (length - 2)) {
- dev_info(&urb->dev->dev, "%s - actual: %d\n",
- __func__, actual_length);
- tty_insert_flip_string(tty,
- data, actual_length);
- tty_flip_buffer_push(tty);
- } else {
- dev_err(&port->dev,
- "%s - inconsistent lengths %d:%d\n",
- __func__, actual_length, length);
- }
- } else {
- dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs);
- }
- } else {
- tty_insert_flip_string(tty, data, length);
- tty_flip_buffer_push(tty);
+ if (!tty)
+ return;
+
+ if (!safe)
+ goto out;
+
+ fcs = fcs_compute10(data, length, CRC10_INITFCS);
+ if (fcs) {
+ dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs);
+ goto err;
}
+
+ actual_length = data[length - 2] >> 2;
+ if (actual_length > (length - 2)) {
+ dev_err(&port->dev, "%s - inconsistent lengths %d:%d\n",
+ __func__, actual_length, length);
+ goto err;
+ }
+ dev_info(&urb->dev->dev, "%s - actual: %d\n", __func__, actual_length);
+ length = actual_length;
+out:
+ tty_insert_flip_string(tty, data, length);
+ tty_flip_buffer_push(tty);
+err:
tty_kref_put(tty);
-
- /* Continue trying to always read */
- usb_fill_bulk_urb(urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- urb->transfer_buffer, urb->transfer_buffer_length,
- safe_read_bulk_callback, port);
-
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- /* FIXME: Need a mechanism to retry later if this happens */
}
-static int safe_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
+static int safe_prepare_write_buffer(struct usb_serial_port *port,
+ void *dest, size_t size)
{
- unsigned char *data;
- int result;
- int i;
- int packet_length;
+ unsigned char *buf = dest;
+ int count;
+ int trailer_len;
+ int pkt_len;
+ __u16 fcs;
- dbg("safe_write port: %p %d urb: %p count: %d",
- port, port->number, port->write_urb, count);
+ trailer_len = safe ? 2 : 0;
- if (!port->write_urb) {
- dbg("%s - write urb NULL", __func__);
- return 0;
- }
+ count = kfifo_out_locked(&port->write_fifo, buf, size - trailer_len,
+ &port->lock);
+ if (!safe)
+ return count;
- dbg("safe_write write_urb: %d transfer_buffer_length",
- port->write_urb->transfer_buffer_length);
-
- if (!port->write_urb->transfer_buffer_length) {
- dbg("%s - write urb transfer_buffer_length zero", __func__);
- return 0;
- }
- if (count == 0) {
- dbg("%s - write request of 0 bytes", __func__);
- return 0;
- }
- spin_lock_bh(&port->lock);
- if (port->write_urb_busy) {
- spin_unlock_bh(&port->lock);
- dbg("%s - already writing", __func__);
- return 0;
- }
- port->write_urb_busy = 1;
- spin_unlock_bh(&port->lock);
-
- packet_length = port->bulk_out_size; /* get max packetsize */
-
- i = packet_length - (safe ? 2 : 0); /* get bytes to send */
- count = (count > i) ? i : count;
-
-
- /* get the data into the transfer buffer */
- data = port->write_urb->transfer_buffer;
- memset(data, '0', packet_length);
-
- memcpy(data, buf, count);
-
- if (safe) {
- __u16 fcs;
-
- /* pad if necessary */
- if (!padded)
- packet_length = count + 2;
- /* set count */
- data[packet_length - 2] = count << 2;
- data[packet_length - 1] = 0;
-
- /* compute fcs and insert into trailer */
- fcs = fcs_compute10(data, packet_length, CRC10_INITFCS);
- data[packet_length - 2] |= fcs >> 8;
- data[packet_length - 1] |= fcs & 0xff;
-
- /* set length to send */
- port->write_urb->transfer_buffer_length = packet_length;
+ /* pad if necessary */
+ if (padded) {
+ pkt_len = size;
+ memset(buf + count, '0', pkt_len - count - trailer_len);
} else {
- port->write_urb->transfer_buffer_length = count;
+ pkt_len = count + trailer_len;
}
- usb_serial_debug_data(debug, &port->dev, __func__, count,
- port->write_urb->transfer_buffer);
-#ifdef ECHO_TX
- {
- int i;
- unsigned char *cp = port->write_urb->transfer_buffer;
- for (i = 0; i < port->write_urb->transfer_buffer_length; i++) {
- if ((i % 32) == 0)
- printk("\nsu[%02x] ", i);
- printk("%02x ", *cp++);
- }
- printk("\n");
- }
-#endif
- port->write_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->write_urb, GFP_KERNEL);
- if (result) {
- port->write_urb_busy = 0;
- dev_err(&port->dev,
- "%s - failed submitting write urb, error %d\n",
- __func__, result);
- return 0;
- }
- dbg("%s urb: %p submitted", __func__, port->write_urb);
+ /* set count */
+ buf[pkt_len - 2] = count << 2;
+ buf[pkt_len - 1] = 0;
- return count;
-}
+ /* compute fcs and insert into trailer */
+ fcs = fcs_compute10(buf, pkt_len, CRC10_INITFCS);
+ buf[pkt_len - 2] |= fcs >> 8;
+ buf[pkt_len - 1] |= fcs & 0xff;
-static int safe_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- int room = 0; /* Default: no room */
- unsigned long flags;
-
- dbg("%s", __func__);
-
- spin_lock_irqsave(&port->lock, flags);
- if (port->write_urb_busy)
- room = port->bulk_out_size - (safe ? 2 : 0);
- spin_unlock_irqrestore(&port->lock, flags);
-
- if (room)
- dbg("safe_write_room returns %d", room);
- return room;
+ return pkt_len;
}
static int safe_startup(struct usb_serial *serial)
@@ -421,9 +311,8 @@
.id_table = id_table,
.usb_driver = &safe_driver,
.num_ports = 1,
- .write = safe_write,
- .write_room = safe_write_room,
- .read_bulk_callback = safe_read_bulk_callback,
+ .process_read_urb = safe_process_read_urb,
+ .prepare_write_buffer = safe_prepare_write_buffer,
.attach = safe_startup,
};
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index 5d39191..329d311 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -1,6 +1,7 @@
/*
* spcp8x5 USB to serial adaptor driver
*
+ * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com)
* Copyright (C) 2006 Linxb (xubin.lin@worldplus.com.cn)
* Copyright (C) 2006 S1 Corp.
*
@@ -29,7 +30,7 @@
/* Version Information */
-#define DRIVER_VERSION "v0.04"
+#define DRIVER_VERSION "v0.10"
#define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver"
static int debug;
@@ -64,11 +65,6 @@
u16 length;
};
-/* wait 30s before close */
-#define SPCP8x5_CLOSING_WAIT (30*HZ)
-
-#define SPCP8x5_BUF_SIZE 1024
-
/* spcp8x5 spec register define */
#define MCR_CONTROL_LINE_RTS 0x02
@@ -155,133 +151,6 @@
SPCP835_TYPE,
};
-/* 1st in 1st out buffer 4 driver */
-struct ringbuf {
- unsigned int buf_size;
- char *buf_buf;
- char *buf_get;
- char *buf_put;
-};
-
-/* alloc the ring buf and alloc the buffer itself */
-static inline struct ringbuf *alloc_ringbuf(unsigned int size)
-{
- struct ringbuf *pb;
-
- if (size == 0)
- return NULL;
-
- pb = kmalloc(sizeof(*pb), GFP_KERNEL);
- if (pb == NULL)
- return NULL;
-
- pb->buf_buf = kmalloc(size, GFP_KERNEL);
- if (pb->buf_buf == NULL) {
- kfree(pb);
- return NULL;
- }
-
- pb->buf_size = size;
- pb->buf_get = pb->buf_put = pb->buf_buf;
-
- return pb;
-}
-
-/* free the ring buf and the buffer itself */
-static inline void free_ringbuf(struct ringbuf *pb)
-{
- if (pb != NULL) {
- kfree(pb->buf_buf);
- kfree(pb);
- }
-}
-
-/* clear pipo , juest repoint the pointer here */
-static inline void clear_ringbuf(struct ringbuf *pb)
-{
- if (pb != NULL)
- pb->buf_get = pb->buf_put;
-}
-
-/* get the number of data in the pipo */
-static inline unsigned int ringbuf_avail_data(struct ringbuf *pb)
-{
- if (pb == NULL)
- return 0;
- return (pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size;
-}
-
-/* get the number of space in the pipo */
-static inline unsigned int ringbuf_avail_space(struct ringbuf *pb)
-{
- if (pb == NULL)
- return 0;
- return (pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size;
-}
-
-/* put count data into pipo */
-static unsigned int put_ringbuf(struct ringbuf *pb, const char *buf,
- unsigned int count)
-{
- unsigned int len;
-
- if (pb == NULL)
- return 0;
-
- len = ringbuf_avail_space(pb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = pb->buf_buf + pb->buf_size - pb->buf_put;
- if (count > len) {
- memcpy(pb->buf_put, buf, len);
- memcpy(pb->buf_buf, buf+len, count - len);
- pb->buf_put = pb->buf_buf + count - len;
- } else {
- memcpy(pb->buf_put, buf, count);
- if (count < len)
- pb->buf_put += count;
- else /* count == len */
- pb->buf_put = pb->buf_buf;
- }
- return count;
-}
-
-/* get count data from pipo */
-static unsigned int get_ringbuf(struct ringbuf *pb, char *buf,
- unsigned int count)
-{
- unsigned int len;
-
- if (pb == NULL || buf == NULL)
- return 0;
-
- len = ringbuf_avail_data(pb);
- if (count > len)
- count = len;
-
- if (count == 0)
- return 0;
-
- len = pb->buf_buf + pb->buf_size - pb->buf_get;
- if (count > len) {
- memcpy(buf, pb->buf_get, len);
- memcpy(buf+len, pb->buf_buf, count - len);
- pb->buf_get = pb->buf_buf + count - len;
- } else {
- memcpy(buf, pb->buf_get, count);
- if (count < len)
- pb->buf_get += count;
- else /* count == len */
- pb->buf_get = pb->buf_buf;
- }
-
- return count;
-}
-
static struct usb_driver spcp8x5_driver = {
.name = "spcp8x5",
.probe = usb_serial_probe,
@@ -293,8 +162,6 @@
struct spcp8x5_private {
spinlock_t lock;
- struct ringbuf *buf;
- int write_urb_in_use;
enum spcp8x5_type type;
wait_queue_head_t delta_msr_wait;
u8 line_control;
@@ -330,24 +197,15 @@
goto cleanup;
spin_lock_init(&priv->lock);
- priv->buf = alloc_ringbuf(SPCP8x5_BUF_SIZE);
- if (priv->buf == NULL)
- goto cleanup2;
-
init_waitqueue_head(&priv->delta_msr_wait);
priv->type = type;
usb_set_serial_port_data(serial->port[i] , priv);
-
}
return 0;
-
-cleanup2:
- kfree(priv);
cleanup:
for (--i; i >= 0; --i) {
priv = usb_get_serial_port_data(serial->port[i]);
- free_ringbuf(priv->buf);
kfree(priv);
usb_set_serial_port_data(serial->port[i] , NULL);
}
@@ -358,15 +216,9 @@
static void spcp8x5_release(struct usb_serial *serial)
{
int i;
- struct spcp8x5_private *priv;
- for (i = 0; i < serial->num_ports; i++) {
- priv = usb_get_serial_port_data(serial->port[i]);
- if (priv) {
- free_ringbuf(priv->buf);
- kfree(priv);
- }
- }
+ for (i = 0; i < serial->num_ports; i++)
+ kfree(usb_get_serial_port_data(serial->port[i]));
}
/* set the modem control line of the device.
@@ -470,33 +322,6 @@
spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type);
}
-/* close the serial port. We should wait for data sending to device 1st and
- * then kill all urb. */
-static void spcp8x5_close(struct usb_serial_port *port)
-{
- struct spcp8x5_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
- int result;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->lock, flags);
- /* clear out any remaining data in the buffer */
- clear_ringbuf(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* kill urb */
- if (port->write_urb != NULL) {
- result = usb_unlink_urb(port->write_urb);
- if (result)
- dev_dbg(&port->dev,
- "usb_unlink_urb(write_urb) = %d\n", result);
- }
- result = usb_unlink_urb(port->read_urb);
- if (result)
- dev_dbg(&port->dev, "usb_unlink_urb(read_urb) = %d\n", result);
-}
-
static void spcp8x5_init_termios(struct tty_struct *tty)
{
/* for the 1st time call this function */
@@ -620,7 +445,7 @@
}
/* open the serial port. do some usb system call. set termios and get the line
- * status of the device. then submit the read urb */
+ * status of the device. */
static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct ktermios tmp_termios;
@@ -655,52 +480,21 @@
priv->line_status = status & 0xf0 ;
spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - submitting read urb", __func__);
- port->read_urb->dev = serial->dev;
- ret = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (ret) {
- spcp8x5_close(port);
- return -EPROTO;
- }
port->port.drain_delay = 256;
- return 0;
+
+ return usb_serial_generic_open(tty, port);
}
-/* bulk read call back function. check the status of the urb. if transfer
- * failed return. then update the status and the tty send data to tty subsys.
- * submit urb again.
- */
-static void spcp8x5_read_bulk_callback(struct urb *urb)
+static void spcp8x5_process_read_urb(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
unsigned long flags;
- int result = urb->status;
u8 status;
char tty_flag;
- dev_dbg(&port->dev, "start, result = %d, urb->actual_length = %d\n,",
- result, urb->actual_length);
-
- /* check the urb status */
- if (result) {
- if (result == -EPROTO) {
- /* spcp8x5 mysteriously fails with -EPROTO */
- /* reschedule the read */
- urb->dev = port->serial->dev;
- result = usb_submit_urb(urb , GFP_ATOMIC);
- if (result)
- dev_dbg(&port->dev,
- "failed submitting read urb %d\n",
- result);
- return;
- }
- dev_dbg(&port->dev, "unable to handle the error, exiting.\n");
- return;
- }
-
/* get tty_flag from status */
tty_flag = TTY_NORMAL;
@@ -711,141 +505,33 @@
/* wake up the wait for termios */
wake_up_interruptible(&priv->delta_msr_wait);
- /* break takes precedence over parity, which takes precedence over
- * framing errors */
- if (status & UART_BREAK_ERROR)
- tty_flag = TTY_BREAK;
- else if (status & UART_PARITY_ERROR)
- tty_flag = TTY_PARITY;
- else if (status & UART_FRAME_ERROR)
- tty_flag = TTY_FRAME;
- dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag);
+ if (!urb->actual_length)
+ return;
tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
+ if (!tty)
+ return;
+
+ if (status & UART_STATE_TRANSIENT_MASK) {
+ /* break takes precedence over parity, which takes precedence
+ * over framing errors */
+ if (status & UART_BREAK_ERROR)
+ tty_flag = TTY_BREAK;
+ else if (status & UART_PARITY_ERROR)
+ tty_flag = TTY_PARITY;
+ else if (status & UART_FRAME_ERROR)
+ tty_flag = TTY_FRAME;
+ dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag);
+
/* overrun is special, not associated with a char */
if (status & UART_OVERRUN_ERROR)
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- tty_insert_flip_string_fixed_flag(tty, data,
- urb->actual_length, tty_flag);
- tty_flip_buffer_push(tty);
}
+
+ tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
+ urb->actual_length);
+ tty_flip_buffer_push(tty);
tty_kref_put(tty);
-
- /* Schedule the next read */
- urb->dev = port->serial->dev;
- result = usb_submit_urb(urb , GFP_ATOMIC);
- if (result)
- dev_dbg(&port->dev, "failed submitting read urb %d\n", result);
-}
-
-/* get data from ring buffer and then write to usb bus */
-static void spcp8x5_send(struct usb_serial_port *port)
-{
- int count, result;
- struct spcp8x5_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->write_urb_in_use) {
- dev_dbg(&port->dev, "write urb still used\n");
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- /* send the 1st urb for writting */
- memset(port->write_urb->transfer_buffer , 0x00 , port->bulk_out_size);
- count = get_ringbuf(priv->buf, port->write_urb->transfer_buffer,
- port->bulk_out_size);
-
- if (count == 0) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- /* update the urb status */
- priv->write_urb_in_use = 1;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- port->write_urb->transfer_buffer_length = count;
- port->write_urb->dev = port->serial->dev;
-
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result) {
- dev_dbg(&port->dev, "failed submitting write urb, error %d\n",
- result);
- priv->write_urb_in_use = 0;
- /* TODO: reschedule spcp8x5_send */
- }
-
-
- schedule_work(&port->work);
-}
-
-/* this is the call back function for write urb. NOTE we should not sleep in
- * this routine. check the urb return code and then submit the write urb again
- * to hold the write loop */
-static void spcp8x5_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct spcp8x5_private *priv = usb_get_serial_port_data(port);
- int result;
- int status = urb->status;
-
- switch (status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dev_dbg(&port->dev, "urb shutting down with status: %d\n",
- status);
- priv->write_urb_in_use = 0;
- return;
- default:
- /* error in the urb, so we have to resubmit it */
- dbg("%s - Overflow in write", __func__);
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
- port->write_urb->transfer_buffer_length = 1;
- port->write_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
- if (result)
- dev_dbg(&port->dev,
- "failed resubmitting write urb %d\n", result);
- else
- return;
- }
-
- priv->write_urb_in_use = 0;
-
- /* send any buffered data */
- spcp8x5_send(port);
-}
-
-/* write data to ring buffer. and then start the write transfer */
-static int spcp8x5_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct spcp8x5_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
- dev_dbg(&port->dev, "%d bytes\n", count);
-
- if (!count)
- return count;
-
- spin_lock_irqsave(&priv->lock, flags);
- count = put_ringbuf(priv->buf, buf, count);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- spcp8x5_send(port);
-
- return count;
}
static int spcp8x5_wait_modem_info(struct usb_serial_port *port,
@@ -953,36 +639,6 @@
return result;
}
-/* get the avail space room in ring buffer */
-static int spcp8x5_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct spcp8x5_private *priv = usb_get_serial_port_data(port);
- int room = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- room = ringbuf_avail_space(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return room;
-}
-
-/* get the number of avail data in write ring buffer */
-static int spcp8x5_chars_in_buffer(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct spcp8x5_private *priv = usb_get_serial_port_data(port);
- int chars = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- chars = ringbuf_avail_data(priv->buf);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return chars;
-}
-
/* All of the device info needed for the spcp8x5 SIO serial converter */
static struct usb_serial_driver spcp8x5_device = {
.driver = {
@@ -992,21 +648,16 @@
.id_table = id_table,
.num_ports = 1,
.open = spcp8x5_open,
- .close = spcp8x5_close,
.dtr_rts = spcp8x5_dtr_rts,
.carrier_raised = spcp8x5_carrier_raised,
- .write = spcp8x5_write,
.set_termios = spcp8x5_set_termios,
.init_termios = spcp8x5_init_termios,
.ioctl = spcp8x5_ioctl,
.tiocmget = spcp8x5_tiocmget,
.tiocmset = spcp8x5_tiocmset,
- .write_room = spcp8x5_write_room,
- .read_bulk_callback = spcp8x5_read_bulk_callback,
- .write_bulk_callback = spcp8x5_write_bulk_callback,
- .chars_in_buffer = spcp8x5_chars_in_buffer,
.attach = spcp8x5_startup,
.release = spcp8x5_release,
+ .process_read_urb = spcp8x5_process_read_urb,
};
static int __init spcp8x5_init(void)
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index e1bfda3..90979a1 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -30,7 +30,7 @@
#include <linux/spinlock.h>
#include <linux/ioctl.h>
#include <linux/serial.h>
-#include <linux/circ_buf.h>
+#include <linux/kfifo.h>
#include <linux/mutex.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
@@ -40,7 +40,7 @@
/* Defines */
-#define TI_DRIVER_VERSION "v0.9"
+#define TI_DRIVER_VERSION "v0.10"
#define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>"
#define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver"
@@ -82,7 +82,7 @@
spinlock_t tp_lock;
int tp_read_urb_state;
int tp_write_urb_in_use;
- struct circ_buf *tp_write_buf;
+ struct kfifo write_fifo;
};
struct ti_device {
@@ -144,15 +144,6 @@
static int ti_download_firmware(struct ti_device *tdev);
-/* circular buffer */
-static struct circ_buf *ti_buf_alloc(void);
-static void ti_buf_free(struct circ_buf *cb);
-static void ti_buf_clear(struct circ_buf *cb);
-static int ti_buf_data_avail(struct circ_buf *cb);
-static int ti_buf_space_avail(struct circ_buf *cb);
-static int ti_buf_put(struct circ_buf *cb, const char *buf, int count);
-static int ti_buf_get(struct circ_buf *cb, char *buf, int count);
-
/* Data */
@@ -450,8 +441,8 @@
tport->tp_closing_wait = closing_wait;
init_waitqueue_head(&tport->tp_msr_wait);
init_waitqueue_head(&tport->tp_write_wait);
- tport->tp_write_buf = ti_buf_alloc();
- if (tport->tp_write_buf == NULL) {
+ if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE,
+ GFP_KERNEL)) {
dev_err(&dev->dev, "%s - out of memory\n", __func__);
kfree(tport);
status = -ENOMEM;
@@ -468,7 +459,7 @@
free_tports:
for (--i; i >= 0; --i) {
tport = usb_get_serial_port_data(serial->port[i]);
- ti_buf_free(tport->tp_write_buf);
+ kfifo_free(&tport->write_fifo);
kfree(tport);
usb_set_serial_port_data(serial->port[i], NULL);
}
@@ -490,7 +481,7 @@
for (i = 0; i < serial->num_ports; ++i) {
tport = usb_get_serial_port_data(serial->port[i]);
if (tport) {
- ti_buf_free(tport->tp_write_buf);
+ kfifo_free(&tport->write_fifo);
kfree(tport);
}
}
@@ -701,7 +692,6 @@
const unsigned char *data, int count)
{
struct ti_port *tport = usb_get_serial_port_data(port);
- unsigned long flags;
dbg("%s - port %d", __func__, port->number);
@@ -713,10 +703,8 @@
if (tport == NULL || !tport->tp_is_open)
return -ENODEV;
- spin_lock_irqsave(&tport->tp_lock, flags);
- count = ti_buf_put(tport->tp_write_buf, data, count);
- spin_unlock_irqrestore(&tport->tp_lock, flags);
-
+ count = kfifo_in_locked(&tport->write_fifo, data, count,
+ &tport->tp_lock);
ti_send(tport);
return count;
@@ -736,7 +724,7 @@
return 0;
spin_lock_irqsave(&tport->tp_lock, flags);
- room = ti_buf_space_avail(tport->tp_write_buf);
+ room = kfifo_avail(&tport->write_fifo);
spin_unlock_irqrestore(&tport->tp_lock, flags);
dbg("%s - returns %d", __func__, room);
@@ -757,7 +745,7 @@
return 0;
spin_lock_irqsave(&tport->tp_lock, flags);
- chars = ti_buf_data_avail(tport->tp_write_buf);
+ chars = kfifo_len(&tport->write_fifo);
spin_unlock_irqrestore(&tport->tp_lock, flags);
dbg("%s - returns %d", __func__, chars);
@@ -1309,7 +1297,7 @@
if (tport->tp_write_urb_in_use)
goto unlock;
- count = ti_buf_get(tport->tp_write_buf,
+ count = kfifo_out(&tport->write_fifo,
port->write_urb->transfer_buffer,
port->bulk_out_size);
@@ -1504,7 +1492,7 @@
add_wait_queue(&tport->tp_write_wait, &wait);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
- if (ti_buf_data_avail(tport->tp_write_buf) == 0
+ if (kfifo_len(&tport->write_fifo) == 0
|| timeout == 0 || signal_pending(current)
|| tdev->td_urb_error
|| port->serial->disconnected) /* disconnect */
@@ -1518,7 +1506,7 @@
/* flush any remaining data in the buffer */
if (flush)
- ti_buf_clear(tport->tp_write_buf);
+ kfifo_reset_out(&tport->write_fifo);
spin_unlock_irq(&tport->tp_lock);
@@ -1761,142 +1749,3 @@
return 0;
}
-
-
-/* Circular Buffer Functions */
-
-/*
- * ti_buf_alloc
- *
- * Allocate a circular buffer and all associated memory.
- */
-
-static struct circ_buf *ti_buf_alloc(void)
-{
- struct circ_buf *cb;
-
- cb = kmalloc(sizeof(struct circ_buf), GFP_KERNEL);
- if (cb == NULL)
- return NULL;
-
- cb->buf = kmalloc(TI_WRITE_BUF_SIZE, GFP_KERNEL);
- if (cb->buf == NULL) {
- kfree(cb);
- return NULL;
- }
-
- ti_buf_clear(cb);
-
- return cb;
-}
-
-
-/*
- * ti_buf_free
- *
- * Free the buffer and all associated memory.
- */
-
-static void ti_buf_free(struct circ_buf *cb)
-{
- kfree(cb->buf);
- kfree(cb);
-}
-
-
-/*
- * ti_buf_clear
- *
- * Clear out all data in the circular buffer.
- */
-
-static void ti_buf_clear(struct circ_buf *cb)
-{
- cb->head = cb->tail = 0;
-}
-
-
-/*
- * ti_buf_data_avail
- *
- * Return the number of bytes of data available in the circular
- * buffer.
- */
-
-static int ti_buf_data_avail(struct circ_buf *cb)
-{
- return CIRC_CNT(cb->head, cb->tail, TI_WRITE_BUF_SIZE);
-}
-
-
-/*
- * ti_buf_space_avail
- *
- * Return the number of bytes of space available in the circular
- * buffer.
- */
-
-static int ti_buf_space_avail(struct circ_buf *cb)
-{
- return CIRC_SPACE(cb->head, cb->tail, TI_WRITE_BUF_SIZE);
-}
-
-
-/*
- * ti_buf_put
- *
- * Copy data data from a user buffer and put it into the circular buffer.
- * Restrict to the amount of space available.
- *
- * Return the number of bytes copied.
- */
-
-static int ti_buf_put(struct circ_buf *cb, const char *buf, int count)
-{
- int c, ret = 0;
-
- while (1) {
- c = CIRC_SPACE_TO_END(cb->head, cb->tail, TI_WRITE_BUF_SIZE);
- if (count < c)
- c = count;
- if (c <= 0)
- break;
- memcpy(cb->buf + cb->head, buf, c);
- cb->head = (cb->head + c) & (TI_WRITE_BUF_SIZE-1);
- buf += c;
- count -= c;
- ret += c;
- }
-
- return ret;
-}
-
-
-/*
- * ti_buf_get
- *
- * Get data from the circular buffer and copy to the given buffer.
- * Restrict to the amount of data available.
- *
- * Return the number of bytes copied.
- */
-
-static int ti_buf_get(struct circ_buf *cb, char *buf, int count)
-{
- int c, ret = 0;
-
- while (1) {
- c = CIRC_CNT_TO_END(cb->head, cb->tail, TI_WRITE_BUF_SIZE);
- if (count < c)
- c = count;
- if (c <= 0)
- break;
- memcpy(buf, cb->buf + cb->tail, c);
- cb->tail = (cb->tail + c) & (TI_WRITE_BUF_SIZE-1);
- buf += c;
- count -= c;
- ret += c;
- }
-
- return ret;
-}
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 3873660..941c2d4 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -289,7 +289,7 @@
* The console is magical. Do not hang up the console hardware
* or there will be tears.
*/
- if (port->console)
+ if (port->port.console)
return;
if (drv->close)
drv->close(port);
@@ -328,7 +328,7 @@
/* The console is magical. Do not hang up the console hardware
* or there will be tears.
*/
- if (port->console)
+ if (port->port.console)
return;
dbg("%s - port %d", __func__, port->number);
@@ -548,8 +548,12 @@
static void kill_traffic(struct usb_serial_port *port)
{
+ int i;
+
usb_kill_urb(port->read_urb);
usb_kill_urb(port->write_urb);
+ for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i)
+ usb_kill_urb(port->write_urbs[i]);
/*
* This is tricky.
* Some drivers submit the read_urb in the
@@ -568,6 +572,7 @@
static void port_release(struct device *dev)
{
struct usb_serial_port *port = to_usb_serial_port(dev);
+ int i;
dbg ("%s - %s", __func__, dev_name(dev));
@@ -582,6 +587,10 @@
usb_free_urb(port->write_urb);
usb_free_urb(port->interrupt_in_urb);
usb_free_urb(port->interrupt_out_urb);
+ for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) {
+ usb_free_urb(port->write_urbs[i]);
+ kfree(port->bulk_out_buffers[i]);
+ }
kfifo_free(&port->write_fifo);
kfree(port->bulk_in_buffer);
kfree(port->bulk_out_buffer);
@@ -901,7 +910,9 @@
dev_err(&interface->dev, "No free urbs available\n");
goto probe_error;
}
- buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+ buffer_size = serial->type->bulk_in_size;
+ if (!buffer_size)
+ buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
port->bulk_in_size = buffer_size;
port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
@@ -918,6 +929,8 @@
}
for (i = 0; i < num_bulk_out; ++i) {
+ int j;
+
endpoint = bulk_out_endpoint[i];
port = serial->port[i];
port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
@@ -927,7 +940,9 @@
}
if (kfifo_alloc(&port->write_fifo, PAGE_SIZE, GFP_KERNEL))
goto probe_error;
- buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+ buffer_size = serial->type->bulk_out_size;
+ if (!buffer_size)
+ buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
port->bulk_out_size = buffer_size;
port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
port->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
@@ -941,6 +956,28 @@
endpoint->bEndpointAddress),
port->bulk_out_buffer, buffer_size,
serial->type->write_bulk_callback, port);
+ for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j) {
+ set_bit(j, &port->write_urbs_free);
+ port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!port->write_urbs[j]) {
+ dev_err(&interface->dev,
+ "No free urbs available\n");
+ goto probe_error;
+ }
+ port->bulk_out_buffers[j] = kmalloc(buffer_size,
+ GFP_KERNEL);
+ if (!port->bulk_out_buffers[j]) {
+ dev_err(&interface->dev,
+ "Couldn't allocate bulk_out_buffer\n");
+ goto probe_error;
+ }
+ usb_fill_bulk_urb(port->write_urbs[j], dev,
+ usb_sndbulkpipe(dev,
+ endpoint->bEndpointAddress),
+ port->bulk_out_buffers[j], buffer_size,
+ serial->type->write_bulk_callback,
+ port);
+ }
}
if (serial->type->read_int_callback) {
@@ -1294,6 +1331,8 @@
set_to_generic_if_null(device, write_bulk_callback);
set_to_generic_if_null(device, disconnect);
set_to_generic_if_null(device, release);
+ set_to_generic_if_null(device, process_read_urb);
+ set_to_generic_if_null(device, prepare_write_buffer);
}
int usb_serial_register(struct usb_serial_driver *driver)
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
new file mode 100644
index 0000000..2be298a
--- /dev/null
+++ b/drivers/usb/serial/usb-wwan.h
@@ -0,0 +1,67 @@
+/*
+ * Definitions for USB serial mobile broadband cards
+ */
+
+#ifndef __LINUX_USB_USB_WWAN
+#define __LINUX_USB_USB_WWAN
+
+extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on);
+extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port);
+extern void usb_wwan_close(struct usb_serial_port *port);
+extern int usb_wwan_startup(struct usb_serial *serial);
+extern void usb_wwan_disconnect(struct usb_serial *serial);
+extern void usb_wwan_release(struct usb_serial *serial);
+extern int usb_wwan_write_room(struct tty_struct *tty);
+extern void usb_wwan_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port,
+ struct ktermios *old);
+extern int usb_wwan_tiocmget(struct tty_struct *tty, struct file *file);
+extern int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear);
+extern int usb_wwan_send_setup(struct usb_serial_port *port);
+extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
+ const unsigned char *buf, int count);
+extern int usb_wwan_chars_in_buffer(struct tty_struct *tty);
+#ifdef CONFIG_PM
+extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message);
+extern int usb_wwan_resume(struct usb_serial *serial);
+#endif
+
+/* per port private data */
+
+#define N_IN_URB 4
+#define N_OUT_URB 4
+#define IN_BUFLEN 4096
+#define OUT_BUFLEN 4096
+
+struct usb_wwan_intf_private {
+ spinlock_t susp_lock;
+ unsigned int suspended:1;
+ int in_flight;
+ int (*send_setup) (struct usb_serial_port *port);
+ void *private;
+};
+
+struct usb_wwan_port_private {
+ /* Input endpoints and buffer for this port */
+ struct urb *in_urbs[N_IN_URB];
+ u8 *in_buffer[N_IN_URB];
+ /* Output endpoints and buffer for this port */
+ struct urb *out_urbs[N_OUT_URB];
+ u8 *out_buffer[N_OUT_URB];
+ unsigned long out_busy; /* Bit vector of URBs in use */
+ int opened;
+ struct usb_anchor delayed;
+
+ /* Settings for the port */
+ int rts_state; /* Handshaking pins (outputs) */
+ int dtr_state;
+ int cts_state; /* Handshaking pins (inputs) */
+ int dsr_state;
+ int dcd_state;
+ int ri_state;
+
+ unsigned long tx_start_time[N_OUT_URB];
+};
+
+#endif /* __LINUX_USB_USB_WWAN */
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index 28026b4..f2ed6a3 100644
--- a/drivers/usb/serial/usb_debug.c
+++ b/drivers/usb/serial/usb_debug.c
@@ -16,7 +16,6 @@
#include <linux/usb.h>
#include <linux/usb/serial.h>
-#define URB_DEBUG_MAX_IN_FLIGHT_URBS 4000
#define USB_DEBUG_MAX_PACKET_SIZE 8
#define USB_DEBUG_BRK_SIZE 8
static char USB_DEBUG_BRK[USB_DEBUG_BRK_SIZE] = {
@@ -44,12 +43,6 @@
.no_dynamic_id = 1,
};
-static int usb_debug_open(struct tty_struct *tty, struct usb_serial_port *port)
-{
- port->bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE;
- return usb_serial_generic_open(tty, port);
-}
-
/* This HW really does not support a serial break, so one will be
* emulated when ever the break state is set to true.
*/
@@ -69,7 +62,7 @@
memcmp(urb->transfer_buffer, USB_DEBUG_BRK,
USB_DEBUG_BRK_SIZE) == 0) {
usb_serial_handle_break(port);
- usb_serial_generic_resubmit_read_urb(port, GFP_ATOMIC);
+ usb_serial_generic_submit_read_urb(port, GFP_ATOMIC);
return;
}
@@ -83,8 +76,7 @@
},
.id_table = id_table,
.num_ports = 1,
- .open = usb_debug_open,
- .max_in_flight_urbs = URB_DEBUG_MAX_IN_FLIGHT_URBS,
+ .bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE,
.break_ctl = usb_debug_break_ctl,
.read_bulk_callback = usb_debug_read_bulk_callback,
};
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
new file mode 100644
index 0000000..0c70b4a
--- /dev/null
+++ b/drivers/usb/serial/usb_wwan.c
@@ -0,0 +1,665 @@
+/*
+ USB Driver layer for GSM modems
+
+ Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de>
+
+ This driver is free software; you can redistribute it and/or modify
+ it under the terms of Version 2 of the GNU General Public License as
+ published by the Free Software Foundation.
+
+ Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
+
+ History: see the git log.
+
+ Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
+
+ This driver exists because the "normal" serial driver doesn't work too well
+ with GSM modems. Issues:
+ - data loss -- one single Receive URB is not nearly enough
+ - controlling the baud rate doesn't make sense
+*/
+
+#define DRIVER_VERSION "v0.7.2"
+#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
+#define DRIVER_DESC "USB Driver for GSM modems"
+
+#include <linux/kernel.h>
+#include <linux/jiffies.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/bitops.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include "usb-wwan.h"
+
+static int debug;
+
+void usb_wwan_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct usb_serial *serial = port->serial;
+ struct usb_wwan_port_private *portdata;
+
+ struct usb_wwan_intf_private *intfdata;
+
+ dbg("%s", __func__);
+
+ intfdata = port->serial->private;
+
+ if (!intfdata->send_setup)
+ return;
+
+ portdata = usb_get_serial_port_data(port);
+ mutex_lock(&serial->disc_mutex);
+ portdata->rts_state = on;
+ portdata->dtr_state = on;
+ if (serial->dev)
+ intfdata->send_setup(port);
+ mutex_unlock(&serial->disc_mutex);
+}
+EXPORT_SYMBOL(usb_wwan_dtr_rts);
+
+void usb_wwan_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port,
+ struct ktermios *old_termios)
+{
+ struct usb_wwan_intf_private *intfdata = port->serial->private;
+
+ dbg("%s", __func__);
+
+ /* Doesn't support option setting */
+ tty_termios_copy_hw(tty->termios, old_termios);
+
+ if (intfdata->send_setup)
+ intfdata->send_setup(port);
+}
+EXPORT_SYMBOL(usb_wwan_set_termios);
+
+int usb_wwan_tiocmget(struct tty_struct *tty, struct file *file)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ unsigned int value;
+ struct usb_wwan_port_private *portdata;
+
+ portdata = usb_get_serial_port_data(port);
+
+ value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
+ ((portdata->dtr_state) ? TIOCM_DTR : 0) |
+ ((portdata->cts_state) ? TIOCM_CTS : 0) |
+ ((portdata->dsr_state) ? TIOCM_DSR : 0) |
+ ((portdata->dcd_state) ? TIOCM_CAR : 0) |
+ ((portdata->ri_state) ? TIOCM_RNG : 0);
+
+ return value;
+}
+EXPORT_SYMBOL(usb_wwan_tiocmget);
+
+int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct usb_wwan_port_private *portdata;
+ struct usb_wwan_intf_private *intfdata;
+
+ portdata = usb_get_serial_port_data(port);
+ intfdata = port->serial->private;
+
+ if (!intfdata->send_setup)
+ return -EINVAL;
+
+ /* FIXME: what locks portdata fields ? */
+ if (set & TIOCM_RTS)
+ portdata->rts_state = 1;
+ if (set & TIOCM_DTR)
+ portdata->dtr_state = 1;
+
+ if (clear & TIOCM_RTS)
+ portdata->rts_state = 0;
+ if (clear & TIOCM_DTR)
+ portdata->dtr_state = 0;
+ return intfdata->send_setup(port);
+}
+EXPORT_SYMBOL(usb_wwan_tiocmset);
+
+/* Write */
+int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
+ const unsigned char *buf, int count)
+{
+ struct usb_wwan_port_private *portdata;
+ struct usb_wwan_intf_private *intfdata;
+ int i;
+ int left, todo;
+ struct urb *this_urb = NULL; /* spurious */
+ int err;
+ unsigned long flags;
+
+ portdata = usb_get_serial_port_data(port);
+ intfdata = port->serial->private;
+
+ dbg("%s: write (%d chars)", __func__, count);
+
+ i = 0;
+ left = count;
+ for (i = 0; left > 0 && i < N_OUT_URB; i++) {
+ todo = left;
+ if (todo > OUT_BUFLEN)
+ todo = OUT_BUFLEN;
+
+ this_urb = portdata->out_urbs[i];
+ if (test_and_set_bit(i, &portdata->out_busy)) {
+ if (time_before(jiffies,
+ portdata->tx_start_time[i] + 10 * HZ))
+ continue;
+ usb_unlink_urb(this_urb);
+ continue;
+ }
+ dbg("%s: endpoint %d buf %d", __func__,
+ usb_pipeendpoint(this_urb->pipe), i);
+
+ err = usb_autopm_get_interface_async(port->serial->interface);
+ if (err < 0)
+ break;
+
+ /* send the data */
+ memcpy(this_urb->transfer_buffer, buf, todo);
+ this_urb->transfer_buffer_length = todo;
+
+ spin_lock_irqsave(&intfdata->susp_lock, flags);
+ if (intfdata->suspended) {
+ usb_anchor_urb(this_urb, &portdata->delayed);
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ } else {
+ intfdata->in_flight++;
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ err = usb_submit_urb(this_urb, GFP_ATOMIC);
+ if (err) {
+ dbg("usb_submit_urb %p (write bulk) failed "
+ "(%d)", this_urb, err);
+ clear_bit(i, &portdata->out_busy);
+ spin_lock_irqsave(&intfdata->susp_lock, flags);
+ intfdata->in_flight--;
+ spin_unlock_irqrestore(&intfdata->susp_lock,
+ flags);
+ continue;
+ }
+ }
+
+ portdata->tx_start_time[i] = jiffies;
+ buf += todo;
+ left -= todo;
+ }
+
+ count -= left;
+ dbg("%s: wrote (did %d)", __func__, count);
+ return count;
+}
+EXPORT_SYMBOL(usb_wwan_write);
+
+static void usb_wwan_indat_callback(struct urb *urb)
+{
+ int err;
+ int endpoint;
+ struct usb_serial_port *port;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ int status = urb->status;
+
+ dbg("%s: %p", __func__, urb);
+
+ endpoint = usb_pipeendpoint(urb->pipe);
+ port = urb->context;
+
+ if (status) {
+ dbg("%s: nonzero status: %d on endpoint %02x.",
+ __func__, status, endpoint);
+ } else {
+ tty = tty_port_tty_get(&port->port);
+ if (urb->actual_length) {
+ tty_insert_flip_string(tty, data, urb->actual_length);
+ tty_flip_buffer_push(tty);
+ } else
+ dbg("%s: empty read urb received", __func__);
+ tty_kref_put(tty);
+
+ /* Resubmit urb so we continue receiving */
+ if (status != -ESHUTDOWN) {
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err && err != -EPERM)
+ printk(KERN_ERR "%s: resubmit read urb failed. "
+ "(%d)", __func__, err);
+ else
+ usb_mark_last_busy(port->serial->dev);
+ }
+
+ }
+ return;
+}
+
+static void usb_wwan_outdat_callback(struct urb *urb)
+{
+ struct usb_serial_port *port;
+ struct usb_wwan_port_private *portdata;
+ struct usb_wwan_intf_private *intfdata;
+ int i;
+
+ dbg("%s", __func__);
+
+ port = urb->context;
+ intfdata = port->serial->private;
+
+ usb_serial_port_softint(port);
+ usb_autopm_put_interface_async(port->serial->interface);
+ portdata = usb_get_serial_port_data(port);
+ spin_lock(&intfdata->susp_lock);
+ intfdata->in_flight--;
+ spin_unlock(&intfdata->susp_lock);
+
+ for (i = 0; i < N_OUT_URB; ++i) {
+ if (portdata->out_urbs[i] == urb) {
+ smp_mb__before_clear_bit();
+ clear_bit(i, &portdata->out_busy);
+ break;
+ }
+ }
+}
+
+int usb_wwan_write_room(struct tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct usb_wwan_port_private *portdata;
+ int i;
+ int data_len = 0;
+ struct urb *this_urb;
+
+ portdata = usb_get_serial_port_data(port);
+
+ for (i = 0; i < N_OUT_URB; i++) {
+ this_urb = portdata->out_urbs[i];
+ if (this_urb && !test_bit(i, &portdata->out_busy))
+ data_len += OUT_BUFLEN;
+ }
+
+ dbg("%s: %d", __func__, data_len);
+ return data_len;
+}
+EXPORT_SYMBOL(usb_wwan_write_room);
+
+int usb_wwan_chars_in_buffer(struct tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct usb_wwan_port_private *portdata;
+ int i;
+ int data_len = 0;
+ struct urb *this_urb;
+
+ portdata = usb_get_serial_port_data(port);
+
+ for (i = 0; i < N_OUT_URB; i++) {
+ this_urb = portdata->out_urbs[i];
+ /* FIXME: This locking is insufficient as this_urb may
+ go unused during the test */
+ if (this_urb && test_bit(i, &portdata->out_busy))
+ data_len += this_urb->transfer_buffer_length;
+ }
+ dbg("%s: %d", __func__, data_len);
+ return data_len;
+}
+EXPORT_SYMBOL(usb_wwan_chars_in_buffer);
+
+int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port)
+{
+ struct usb_wwan_port_private *portdata;
+ struct usb_wwan_intf_private *intfdata;
+ struct usb_serial *serial = port->serial;
+ int i, err;
+ struct urb *urb;
+
+ portdata = usb_get_serial_port_data(port);
+ intfdata = serial->private;
+
+ dbg("%s", __func__);
+
+ /* Start reading from the IN endpoint */
+ for (i = 0; i < N_IN_URB; i++) {
+ urb = portdata->in_urbs[i];
+ if (!urb)
+ continue;
+ err = usb_submit_urb(urb, GFP_KERNEL);
+ if (err) {
+ dbg("%s: submit urb %d failed (%d) %d",
+ __func__, i, err, urb->transfer_buffer_length);
+ }
+ }
+
+ if (intfdata->send_setup)
+ intfdata->send_setup(port);
+
+ serial->interface->needs_remote_wakeup = 1;
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ usb_autopm_put_interface(serial->interface);
+
+ return 0;
+}
+EXPORT_SYMBOL(usb_wwan_open);
+
+void usb_wwan_close(struct usb_serial_port *port)
+{
+ int i;
+ struct usb_serial *serial = port->serial;
+ struct usb_wwan_port_private *portdata;
+ struct usb_wwan_intf_private *intfdata = port->serial->private;
+
+ dbg("%s", __func__);
+ portdata = usb_get_serial_port_data(port);
+
+ if (serial->dev) {
+ /* Stop reading/writing urbs */
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+
+ for (i = 0; i < N_IN_URB; i++)
+ usb_kill_urb(portdata->in_urbs[i]);
+ for (i = 0; i < N_OUT_URB; i++)
+ usb_kill_urb(portdata->out_urbs[i]);
+ usb_autopm_get_interface(serial->interface);
+ serial->interface->needs_remote_wakeup = 0;
+ }
+}
+EXPORT_SYMBOL(usb_wwan_close);
+
+/* Helper functions used by usb_wwan_setup_urbs */
+static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint,
+ int dir, void *ctx, char *buf, int len,
+ void (*callback) (struct urb *))
+{
+ struct urb *urb;
+
+ if (endpoint == -1)
+ return NULL; /* endpoint not needed */
+
+ urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
+ if (urb == NULL) {
+ dbg("%s: alloc for endpoint %d failed.", __func__, endpoint);
+ return NULL;
+ }
+
+ /* Fill URB using supplied data. */
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_sndbulkpipe(serial->dev, endpoint) | dir,
+ buf, len, callback, ctx);
+
+ return urb;
+}
+
+/* Setup urbs */
+static void usb_wwan_setup_urbs(struct usb_serial *serial)
+{
+ int i, j;
+ struct usb_serial_port *port;
+ struct usb_wwan_port_private *portdata;
+
+ dbg("%s", __func__);
+
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+
+ /* Do indat endpoints first */
+ for (j = 0; j < N_IN_URB; ++j) {
+ portdata->in_urbs[j] = usb_wwan_setup_urb(serial,
+ port->
+ bulk_in_endpointAddress,
+ USB_DIR_IN,
+ port,
+ portdata->
+ in_buffer[j],
+ IN_BUFLEN,
+ usb_wwan_indat_callback);
+ }
+
+ /* outdat endpoints */
+ for (j = 0; j < N_OUT_URB; ++j) {
+ portdata->out_urbs[j] = usb_wwan_setup_urb(serial,
+ port->
+ bulk_out_endpointAddress,
+ USB_DIR_OUT,
+ port,
+ portdata->
+ out_buffer
+ [j],
+ OUT_BUFLEN,
+ usb_wwan_outdat_callback);
+ }
+ }
+}
+
+int usb_wwan_startup(struct usb_serial *serial)
+{
+ int i, j, err;
+ struct usb_serial_port *port;
+ struct usb_wwan_port_private *portdata;
+ u8 *buffer;
+
+ dbg("%s", __func__);
+
+ /* Now setup per port private data */
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
+ if (!portdata) {
+ dbg("%s: kmalloc for usb_wwan_port_private (%d) failed!.",
+ __func__, i);
+ return 1;
+ }
+ init_usb_anchor(&portdata->delayed);
+
+ for (j = 0; j < N_IN_URB; j++) {
+ buffer = (u8 *) __get_free_page(GFP_KERNEL);
+ if (!buffer)
+ goto bail_out_error;
+ portdata->in_buffer[j] = buffer;
+ }
+
+ for (j = 0; j < N_OUT_URB; j++) {
+ buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
+ if (!buffer)
+ goto bail_out_error2;
+ portdata->out_buffer[j] = buffer;
+ }
+
+ usb_set_serial_port_data(port, portdata);
+
+ if (!port->interrupt_in_urb)
+ continue;
+ err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (err)
+ dbg("%s: submit irq_in urb failed %d", __func__, err);
+ }
+ usb_wwan_setup_urbs(serial);
+ return 0;
+
+bail_out_error2:
+ for (j = 0; j < N_OUT_URB; j++)
+ kfree(portdata->out_buffer[j]);
+bail_out_error:
+ for (j = 0; j < N_IN_URB; j++)
+ if (portdata->in_buffer[j])
+ free_page((unsigned long)portdata->in_buffer[j]);
+ kfree(portdata);
+ return 1;
+}
+EXPORT_SYMBOL(usb_wwan_startup);
+
+static void stop_read_write_urbs(struct usb_serial *serial)
+{
+ int i, j;
+ struct usb_serial_port *port;
+ struct usb_wwan_port_private *portdata;
+
+ /* Stop reading/writing urbs */
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+ for (j = 0; j < N_IN_URB; j++)
+ usb_kill_urb(portdata->in_urbs[j]);
+ for (j = 0; j < N_OUT_URB; j++)
+ usb_kill_urb(portdata->out_urbs[j]);
+ }
+}
+
+void usb_wwan_disconnect(struct usb_serial *serial)
+{
+ dbg("%s", __func__);
+
+ stop_read_write_urbs(serial);
+}
+EXPORT_SYMBOL(usb_wwan_disconnect);
+
+void usb_wwan_release(struct usb_serial *serial)
+{
+ int i, j;
+ struct usb_serial_port *port;
+ struct usb_wwan_port_private *portdata;
+
+ dbg("%s", __func__);
+
+ /* Now free them */
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+
+ for (j = 0; j < N_IN_URB; j++) {
+ usb_free_urb(portdata->in_urbs[j]);
+ free_page((unsigned long)
+ portdata->in_buffer[j]);
+ portdata->in_urbs[j] = NULL;
+ }
+ for (j = 0; j < N_OUT_URB; j++) {
+ usb_free_urb(portdata->out_urbs[j]);
+ kfree(portdata->out_buffer[j]);
+ portdata->out_urbs[j] = NULL;
+ }
+ }
+
+ /* Now free per port private data */
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ kfree(usb_get_serial_port_data(port));
+ }
+}
+EXPORT_SYMBOL(usb_wwan_release);
+
+#ifdef CONFIG_PM
+int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message)
+{
+ struct usb_wwan_intf_private *intfdata = serial->private;
+ int b;
+
+ dbg("%s entered", __func__);
+
+ if (message.event & PM_EVENT_AUTO) {
+ spin_lock_irq(&intfdata->susp_lock);
+ b = intfdata->in_flight;
+ spin_unlock_irq(&intfdata->susp_lock);
+
+ if (b)
+ return -EBUSY;
+ }
+
+ spin_lock_irq(&intfdata->susp_lock);
+ intfdata->suspended = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ stop_read_write_urbs(serial);
+
+ return 0;
+}
+EXPORT_SYMBOL(usb_wwan_suspend);
+
+static void play_delayed(struct usb_serial_port *port)
+{
+ struct usb_wwan_intf_private *data;
+ struct usb_wwan_port_private *portdata;
+ struct urb *urb;
+ int err;
+
+ portdata = usb_get_serial_port_data(port);
+ data = port->serial->private;
+ while ((urb = usb_get_from_anchor(&portdata->delayed))) {
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (!err)
+ data->in_flight++;
+ }
+}
+
+int usb_wwan_resume(struct usb_serial *serial)
+{
+ int i, j;
+ struct usb_serial_port *port;
+ struct usb_wwan_intf_private *intfdata = serial->private;
+ struct usb_wwan_port_private *portdata;
+ struct urb *urb;
+ int err = 0;
+
+ dbg("%s entered", __func__);
+ /* get the interrupt URBs resubmitted unconditionally */
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ if (!port->interrupt_in_urb) {
+ dbg("%s: No interrupt URB for port %d", __func__, i);
+ continue;
+ }
+ err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
+ dbg("Submitted interrupt URB for port %d (result %d)", i, err);
+ if (err < 0) {
+ err("%s: Error %d for interrupt URB of port%d",
+ __func__, err, i);
+ goto err_out;
+ }
+ }
+
+ for (i = 0; i < serial->num_ports; i++) {
+ /* walk all ports */
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+
+ /* skip closed ports */
+ spin_lock_irq(&intfdata->susp_lock);
+ if (!portdata->opened) {
+ spin_unlock_irq(&intfdata->susp_lock);
+ continue;
+ }
+
+ for (j = 0; j < N_IN_URB; j++) {
+ urb = portdata->in_urbs[j];
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ err("%s: Error %d for bulk URB %d",
+ __func__, err, i);
+ spin_unlock_irq(&intfdata->susp_lock);
+ goto err_out;
+ }
+ }
+ play_delayed(port);
+ spin_unlock_irq(&intfdata->susp_lock);
+ }
+ spin_lock_irq(&intfdata->susp_lock);
+ intfdata->suspended = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+err_out:
+ return err;
+}
+EXPORT_SYMBOL(usb_wwan_resume);
+#endif
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug messages");
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 0949427..eb76aae 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -38,17 +38,9 @@
/* function prototypes for a handspring visor */
static int visor_open(struct tty_struct *tty, struct usb_serial_port *port);
static void visor_close(struct usb_serial_port *port);
-static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static int visor_write_room(struct tty_struct *tty);
-static void visor_throttle(struct tty_struct *tty);
-static void visor_unthrottle(struct tty_struct *tty);
static int visor_probe(struct usb_serial *serial,
const struct usb_device_id *id);
static int visor_calc_num_ports(struct usb_serial *serial);
-static void visor_release(struct usb_serial *serial);
-static void visor_write_bulk_callback(struct urb *urb);
-static void visor_read_bulk_callback(struct urb *urb);
static void visor_read_int_callback(struct urb *urb);
static int clie_3_5_startup(struct usb_serial *serial);
static int treo_attach(struct usb_serial *serial);
@@ -194,18 +186,14 @@
.usb_driver = &visor_driver,
.id_table = id_table,
.num_ports = 2,
+ .bulk_out_size = 256,
.open = visor_open,
.close = visor_close,
- .throttle = visor_throttle,
- .unthrottle = visor_unthrottle,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
.attach = treo_attach,
.probe = visor_probe,
.calc_num_ports = visor_calc_num_ports,
- .release = visor_release,
- .write = visor_write,
- .write_room = visor_write_room,
- .write_bulk_callback = visor_write_bulk_callback,
- .read_bulk_callback = visor_read_bulk_callback,
.read_int_callback = visor_read_int_callback,
};
@@ -219,18 +207,14 @@
.usb_driver = &visor_driver,
.id_table = clie_id_5_table,
.num_ports = 2,
+ .bulk_out_size = 256,
.open = visor_open,
.close = visor_close,
- .throttle = visor_throttle,
- .unthrottle = visor_unthrottle,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
.attach = clie_5_attach,
.probe = visor_probe,
.calc_num_ports = visor_calc_num_ports,
- .release = visor_release,
- .write = visor_write,
- .write_room = visor_write_room,
- .write_bulk_callback = visor_write_bulk_callback,
- .read_bulk_callback = visor_read_bulk_callback,
.read_int_callback = visor_read_int_callback,
};
@@ -244,39 +228,19 @@
.usb_driver = &visor_driver,
.id_table = clie_id_3_5_table,
.num_ports = 1,
+ .bulk_out_size = 256,
.open = visor_open,
.close = visor_close,
- .throttle = visor_throttle,
- .unthrottle = visor_unthrottle,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
.attach = clie_3_5_startup,
- .write = visor_write,
- .write_room = visor_write_room,
- .write_bulk_callback = visor_write_bulk_callback,
- .read_bulk_callback = visor_read_bulk_callback,
};
-struct visor_private {
- spinlock_t lock;
- int bytes_in;
- int bytes_out;
- int outstanding_urbs;
- unsigned char throttled;
- unsigned char actually_throttled;
-};
-
-/* number of outstanding urbs to prevent userspace DoS from happening */
-#define URB_UPPER_LIMIT 42
-
-static int stats;
-
/******************************************************************************
* Handspring Visor specific driver functions
******************************************************************************/
static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
{
- struct usb_serial *serial = port->serial;
- struct visor_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
int result = 0;
dbg("%s - port %d", __func__, port->number);
@@ -287,26 +251,10 @@
return -ENODEV;
}
- spin_lock_irqsave(&priv->lock, flags);
- priv->bytes_in = 0;
- priv->bytes_out = 0;
- priv->throttled = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-
/* Start reading from the device */
- usb_fill_bulk_urb(port->read_urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- visor_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result) {
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
+ result = usb_serial_generic_open(tty, port);
+ if (result)
goto exit;
- }
if (port->interrupt_in_urb) {
dbg("%s - adding interrupt input for treo", __func__);
@@ -323,13 +271,12 @@
static void visor_close(struct usb_serial_port *port)
{
- struct visor_private *priv = usb_get_serial_port_data(port);
unsigned char *transfer_buffer;
dbg("%s - port %d", __func__, port->number);
/* shutdown our urbs */
- usb_kill_urb(port->read_urb);
+ usb_serial_generic_close(port);
usb_kill_urb(port->interrupt_in_urb);
mutex_lock(&port->serial->disc_mutex);
@@ -346,192 +293,6 @@
}
}
mutex_unlock(&port->serial->disc_mutex);
-
- if (stats)
- dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
- priv->bytes_in, priv->bytes_out);
-}
-
-
-static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count)
-{
- struct visor_private *priv = usb_get_serial_port_data(port);
- struct usb_serial *serial = port->serial;
- struct urb *urb;
- unsigned char *buffer;
- unsigned long flags;
- int status;
-
- dbg("%s - port %d", __func__, port->number);
-
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
- spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - write limit hit", __func__);
- return 0;
- }
- priv->outstanding_urbs++;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- buffer = kmalloc(count, GFP_ATOMIC);
- if (!buffer) {
- dev_err(&port->dev, "out of memory\n");
- count = -ENOMEM;
- goto error_no_buffer;
- }
-
- urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!urb) {
- dev_err(&port->dev, "no more free urbs\n");
- count = -ENOMEM;
- goto error_no_urb;
- }
-
- memcpy(buffer, buf, count);
-
- usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
-
- usb_fill_bulk_urb(urb, serial->dev,
- usb_sndbulkpipe(serial->dev,
- port->bulk_out_endpointAddress),
- buffer, count,
- visor_write_bulk_callback, port);
-
- /* send it down the pipe */
- status = usb_submit_urb(urb, GFP_ATOMIC);
- if (status) {
- dev_err(&port->dev,
- "%s - usb_submit_urb(write bulk) failed with status = %d\n",
- __func__, status);
- count = status;
- goto error;
- } else {
- spin_lock_irqsave(&priv->lock, flags);
- priv->bytes_out += count;
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- /* we are done with this urb, so let the host driver
- * really free it when it is finished with it */
- usb_free_urb(urb);
-
- return count;
-error:
- usb_free_urb(urb);
-error_no_urb:
- kfree(buffer);
-error_no_buffer:
- spin_lock_irqsave(&priv->lock, flags);
- --priv->outstanding_urbs;
- spin_unlock_irqrestore(&priv->lock, flags);
- return count;
-}
-
-
-static int visor_write_room(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct visor_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
-
- dbg("%s - port %d", __func__, port->number);
-
- /*
- * We really can take anything the user throws at us
- * but let's pick a nice big number to tell the tty
- * layer that we have lots of free space, unless we don't.
- */
-
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
- spin_unlock_irqrestore(&priv->lock, flags);
- dbg("%s - write limit hit", __func__);
- return 0;
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 2048;
-}
-
-
-static void visor_write_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct visor_private *priv = usb_get_serial_port_data(port);
- int status = urb->status;
- unsigned long flags;
-
- /* free up the transfer buffer, as usb_free_urb() does not do this */
- kfree(urb->transfer_buffer);
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status)
- dbg("%s - nonzero write bulk status received: %d",
- __func__, status);
-
- spin_lock_irqsave(&priv->lock, flags);
- --priv->outstanding_urbs;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- usb_serial_port_softint(port);
-}
-
-
-static void visor_read_bulk_callback(struct urb *urb)
-{
- struct usb_serial_port *port = urb->context;
- struct visor_private *priv = usb_get_serial_port_data(port);
- unsigned char *data = urb->transfer_buffer;
- int status = urb->status;
- struct tty_struct *tty;
- int result;
- int available_room = 0;
-
- dbg("%s - port %d", __func__, port->number);
-
- if (status) {
- dbg("%s - nonzero read bulk status received: %d",
- __func__, status);
- return;
- }
-
- usb_serial_debug_data(debug, &port->dev, __func__,
- urb->actual_length, data);
-
- if (urb->actual_length) {
- tty = tty_port_tty_get(&port->port);
- if (tty) {
- tty_insert_flip_string(tty, data,
- urb->actual_length);
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
- }
- spin_lock(&priv->lock);
- if (tty)
- priv->bytes_in += available_room;
-
- } else {
- spin_lock(&priv->lock);
- }
-
- /* Continue trying to always read if we should */
- if (!priv->throttled) {
- usb_fill_bulk_urb(port->read_urb, port->serial->dev,
- usb_rcvbulkpipe(port->serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- visor_read_bulk_callback, port);
- result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
- if (result)
- dev_err(&port->dev,
- "%s - failed resubmitting read urb, error %d\n",
- __func__, result);
- } else
- priv->actually_throttled = 1;
- spin_unlock(&priv->lock);
}
static void visor_read_int_callback(struct urb *urb)
@@ -575,41 +336,6 @@
__func__, result);
}
-static void visor_throttle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct visor_private *priv = usb_get_serial_port_data(port);
-
- dbg("%s - port %d", __func__, port->number);
- spin_lock_irq(&priv->lock);
- priv->throttled = 1;
- spin_unlock_irq(&priv->lock);
-}
-
-
-static void visor_unthrottle(struct tty_struct *tty)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct visor_private *priv = usb_get_serial_port_data(port);
- int result, was_throttled;
-
- dbg("%s - port %d", __func__, port->number);
- spin_lock_irq(&priv->lock);
- priv->throttled = 0;
- was_throttled = priv->actually_throttled;
- priv->actually_throttled = 0;
- spin_unlock_irq(&priv->lock);
-
- if (was_throttled) {
- port->read_urb->dev = port->serial->dev;
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- dev_err(&port->dev,
- "%s - failed submitting read urb, error %d\n",
- __func__, result);
- }
-}
-
static int palm_os_3_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
@@ -777,28 +503,6 @@
return num_ports;
}
-static int generic_startup(struct usb_serial *serial)
-{
- struct usb_serial_port **ports = serial->port;
- struct visor_private *priv;
- int i;
-
- for (i = 0; i < serial->num_ports; ++i) {
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- while (i-- != 0) {
- priv = usb_get_serial_port_data(ports[i]);
- usb_set_serial_port_data(ports[i], NULL);
- kfree(priv);
- }
- return -ENOMEM;
- }
- spin_lock_init(&priv->lock);
- usb_set_serial_port_data(ports[i], priv);
- }
- return 0;
-}
-
static int clie_3_5_startup(struct usb_serial *serial)
{
struct device *dev = &serial->dev->dev;
@@ -849,7 +553,7 @@
goto out;
}
- result = generic_startup(serial);
+ result = 0;
out:
kfree(data);
@@ -867,7 +571,7 @@
(le16_to_cpu(serial->dev->descriptor.idVendor)
== KYOCERA_VENDOR_ID)) ||
(serial->num_interrupt_in == 0))
- goto generic_startup;
+ return 0;
dbg("%s", __func__);
@@ -897,8 +601,7 @@
COPY_PORT(serial->port[1], swap_port);
kfree(swap_port);
-generic_startup:
- return generic_startup(serial);
+ return 0;
}
static int clie_5_attach(struct usb_serial *serial)
@@ -921,20 +624,7 @@
serial->port[0]->bulk_out_endpointAddress =
serial->port[1]->bulk_out_endpointAddress;
- return generic_startup(serial);
-}
-
-static void visor_release(struct usb_serial *serial)
-{
- struct visor_private *priv;
- int i;
-
- dbg("%s", __func__);
-
- for (i = 0; i < serial->num_ports; i++) {
- priv = usb_get_serial_port_data(serial->port[i]);
- kfree(priv);
- }
+ return 0;
}
static int __init visor_init(void)
@@ -1018,8 +708,6 @@
module_param(debug, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Debug enabled or not");
-module_param(stats, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(stats, "Enables statistics or not");
module_param(vendor, ushort, 0);
MODULE_PARM_DESC(vendor, "User specified vendor ID");
diff --git a/drivers/usb/serial/visor.h b/drivers/usb/serial/visor.h
index 57229cf..88db4d0 100644
--- a/drivers/usb/serial/visor.h
+++ b/drivers/usb/serial/visor.h
@@ -9,8 +9,9 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * See Documentation/usb/usb-serial.txt for more information on using this driver
- *
+ * See Documentation/usb/usb-serial.txt for more information on using this
+ * driver.
+ *
*/
#ifndef __LINUX_USB_SERIAL_VISOR_H
@@ -65,7 +66,7 @@
#define ACEECA_MEZ1000_ID 0x0001
#define KYOCERA_VENDOR_ID 0x0C88
-#define KYOCERA_7135_ID 0x0021
+#define KYOCERA_7135_ID 0x0021
#define FOSSIL_VENDOR_ID 0x0E67
#define FOSSIL_ABACUS_ID 0x0002
@@ -145,7 +146,7 @@
* The maximum number of connections currently supported is 2
*/
struct palm_ext_connection_info {
- __u8 num_ports;
+ __u8 num_ports;
__u8 endpoint_numbers_different;
__le16 reserved1;
struct {
diff --git a/drivers/usb/serial/zio.c b/drivers/usb/serial/zio.c
new file mode 100644
index 0000000..f579672
--- /dev/null
+++ b/drivers/usb/serial/zio.c
@@ -0,0 +1,64 @@
+/*
+ * ZIO Motherboard USB driver
+ *
+ * Copyright (C) 2010 Zilogic Systems <code@zilogic.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/uaccess.h>
+
+static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x1CBE, 0x0103) },
+ { },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver zio_driver = {
+ .name = "zio",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+ .no_dynamic_id = 1,
+};
+
+static struct usb_serial_driver zio_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "zio",
+ },
+ .id_table = id_table,
+ .usb_driver = &zio_driver,
+ .num_ports = 1,
+};
+
+static int __init zio_init(void)
+{
+ int retval;
+
+ retval = usb_serial_register(&zio_device);
+ if (retval)
+ return retval;
+ retval = usb_register(&zio_driver);
+ if (retval)
+ usb_serial_deregister(&zio_device);
+ return retval;
+}
+
+static void __exit zio_exit(void)
+{
+ usb_deregister(&zio_driver);
+ usb_serial_deregister(&zio_device);
+}
+
+module_init(zio_init);
+module_exit(zio_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index fdba2f6..e9cbc14 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -490,13 +490,13 @@
void* pointer, int value )
{
union ata_cdb ata;
- struct scsi_device srb_dev;
+ /* static to prevent this large struct being placed on the valuable stack */
+ static struct scsi_device srb_dev;
struct isd200_info *info = (struct isd200_info *)us->extra;
struct scsi_cmnd *srb = &info->srb;
int status;
memset(&ata, 0, sizeof(ata));
- memset(&srb_dev, 0, sizeof(srb_dev));
srb->cmnd = info->cmnd;
srb->device = &srb_dev;
++srb->serial_number;
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index 198bb3e..1943be5 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -201,8 +201,8 @@
if (!onetouch || !input_dev)
goto fail1;
- onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
- GFP_KERNEL, &onetouch->data_dma);
+ onetouch->data = usb_alloc_coherent(udev, ONETOUCH_PKT_LEN,
+ GFP_KERNEL, &onetouch->data_dma);
if (!onetouch->data)
goto fail1;
@@ -264,8 +264,8 @@
return 0;
fail3: usb_free_urb(onetouch->irq);
- fail2: usb_buffer_free(udev, ONETOUCH_PKT_LEN,
- onetouch->data, onetouch->data_dma);
+ fail2: usb_free_coherent(udev, ONETOUCH_PKT_LEN,
+ onetouch->data, onetouch->data_dma);
fail1: kfree(onetouch);
input_free_device(input_dev);
return error;
@@ -279,8 +279,8 @@
usb_kill_urb(onetouch->irq);
input_unregister_device(onetouch->dev);
usb_free_urb(onetouch->irq);
- usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
- onetouch->data, onetouch->data_dma);
+ usb_free_coherent(onetouch->udev, ONETOUCH_PKT_LEN,
+ onetouch->data, onetouch->data_dma);
}
}
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index f253ede..4471642 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -147,11 +147,9 @@
* hasn't been mapped for DMA. Yes, this is clunky, but it's
* easier than always having the caller tell us whether the
* transfer buffer has already been mapped. */
- us->current_urb->transfer_flags = URB_NO_SETUP_DMA_MAP;
if (us->current_urb->transfer_buffer == us->iobuf)
us->current_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
us->current_urb->transfer_dma = us->iobuf_dma;
- us->current_urb->setup_dma = us->cr_dma;
/* submit the URB */
status = usb_submit_urb(us->current_urb, GFP_NOIO);
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index ccf1dbb..2c897ee 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -365,15 +365,6 @@
"FinePix 1400Zoom",
US_SC_UFI, US_PR_DEVICE, NULL, US_FL_FIX_INQUIRY | US_FL_SINGLE_LUN),
-/* Reported by Peter Wächtler <pwaechtler@loewe-komp.de>
- * The device needs the flags only.
- */
-UNUSUAL_DEV( 0x04ce, 0x0002, 0x0074, 0x0074,
- "ScanLogic",
- "SL11R-IDE",
- US_SC_DEVICE, US_PR_DEVICE, NULL,
- US_FL_FIX_INQUIRY),
-
/* Reported by Ondrej Zary <linux@rainbow-software.org>
* The device reports one sector more and breaks when that sector is accessed
*/
@@ -1853,6 +1844,21 @@
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
+/* Reported by Hans de Goede <hdegoede@redhat.com>
+ * These Appotech controllers are found in Picture Frames, they provide a
+ * (buggy) emulation of a cdrom drive which contains the windows software
+ * Uploading of pictures happens over the corresponding /dev/sg device. */
+UNUSUAL_DEV( 0x1908, 0x1315, 0x0000, 0x0000,
+ "BUILDWIN",
+ "Photo Frame",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ US_FL_BAD_SENSE ),
+UNUSUAL_DEV( 0x1908, 0x1320, 0x0000, 0x0000,
+ "BUILDWIN",
+ "Photo Frame",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ US_FL_BAD_SENSE ),
+
UNUSUAL_DEV( 0x2116, 0x0320, 0x0001, 0x0001,
"ST",
"2A",
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index bbeeb92..a7d0bf9 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -407,15 +407,14 @@
/* Store our private data in the interface */
usb_set_intfdata(intf, us);
- /* Allocate the device-related DMA-mapped buffers */
- us->cr = usb_buffer_alloc(us->pusb_dev, sizeof(*us->cr),
- GFP_KERNEL, &us->cr_dma);
+ /* Allocate the control/setup and DMA-mapped buffers */
+ us->cr = kmalloc(sizeof(*us->cr), GFP_KERNEL);
if (!us->cr) {
US_DEBUGP("usb_ctrlrequest allocation failed\n");
return -ENOMEM;
}
- us->iobuf = usb_buffer_alloc(us->pusb_dev, US_IOBUF_SIZE,
+ us->iobuf = usb_alloc_coherent(us->pusb_dev, US_IOBUF_SIZE,
GFP_KERNEL, &us->iobuf_dma);
if (!us->iobuf) {
US_DEBUGP("I/O buffer allocation failed\n");
@@ -499,9 +498,6 @@
}
}
us->fflags = (us->fflags & ~mask) | f;
- dev_info(&us->pusb_intf->dev, "Quirks match for "
- "vid %04x pid %04x: %x\n",
- vid, pid, f);
}
/* Get the unusual_devs entries and the string descriptors */
@@ -511,6 +507,7 @@
struct usb_device *dev = us->pusb_dev;
struct usb_interface_descriptor *idesc =
&us->pusb_intf->cur_altsetting->desc;
+ struct device *pdev = &us->pusb_intf->dev;
/* Store the entries */
us->unusual_dev = unusual_dev;
@@ -524,7 +521,7 @@
adjust_quirks(us);
if (us->fflags & US_FL_IGNORE_DEVICE) {
- printk(KERN_INFO USB_STORAGE "device ignored\n");
+ dev_info(pdev, "device ignored\n");
return -ENODEV;
}
@@ -535,6 +532,12 @@
if (dev->speed != USB_SPEED_HIGH)
us->fflags &= ~US_FL_GO_SLOW;
+ if (us->fflags)
+ dev_info(pdev, "Quirks match for vid %04x pid %04x: %lx\n",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct),
+ us->fflags);
+
/* Log a message if a non-generic unusual_dev entry contains an
* unnecessary subclass or protocol override. This may stimulate
* reports from users that will help us remove unneeded entries
@@ -555,20 +558,20 @@
us->protocol == idesc->bInterfaceProtocol)
msg += 2;
if (msg >= 0 && !(us->fflags & US_FL_NEED_OVERRIDE))
- printk(KERN_NOTICE USB_STORAGE "This device "
- "(%04x,%04x,%04x S %02x P %02x)"
- " has %s in unusual_devs.h (kernel"
- " %s)\n"
- " Please send a copy of this message to "
- "<linux-usb@vger.kernel.org> and "
- "<usb-storage@lists.one-eyed-alien.net>\n",
- le16_to_cpu(ddesc->idVendor),
- le16_to_cpu(ddesc->idProduct),
- le16_to_cpu(ddesc->bcdDevice),
- idesc->bInterfaceSubClass,
- idesc->bInterfaceProtocol,
- msgs[msg],
- utsname()->release);
+ dev_notice(pdev, "This device "
+ "(%04x,%04x,%04x S %02x P %02x)"
+ " has %s in unusual_devs.h (kernel"
+ " %s)\n"
+ " Please send a copy of this message to "
+ "<linux-usb@vger.kernel.org> and "
+ "<usb-storage@lists.one-eyed-alien.net>\n",
+ le16_to_cpu(ddesc->idVendor),
+ le16_to_cpu(ddesc->idProduct),
+ le16_to_cpu(ddesc->bcdDevice),
+ idesc->bInterfaceSubClass,
+ idesc->bInterfaceProtocol,
+ msgs[msg],
+ utsname()->release);
}
return 0;
@@ -718,8 +721,8 @@
/* Start up our control thread */
th = kthread_run(usb_stor_control_thread, us, "usb-storage");
if (IS_ERR(th)) {
- printk(KERN_WARNING USB_STORAGE
- "Unable to start control thread\n");
+ dev_warn(&us->pusb_intf->dev,
+ "Unable to start control thread\n");
return PTR_ERR(th);
}
us->ctl_thread = th;
@@ -757,13 +760,9 @@
{
US_DEBUGP("-- %s\n", __func__);
- /* Free the device-related DMA-mapped buffers */
- if (us->cr)
- usb_buffer_free(us->pusb_dev, sizeof(*us->cr), us->cr,
- us->cr_dma);
- if (us->iobuf)
- usb_buffer_free(us->pusb_dev, US_IOBUF_SIZE, us->iobuf,
- us->iobuf_dma);
+ /* Free the buffers */
+ kfree(us->cr);
+ usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, us->iobuf_dma);
/* Remove our private data from the interface */
usb_set_intfdata(us->pusb_intf, NULL);
@@ -816,13 +815,14 @@
static int usb_stor_scan_thread(void * __us)
{
struct us_data *us = (struct us_data *)__us;
+ struct device *dev = &us->pusb_intf->dev;
- dev_dbg(&us->pusb_intf->dev, "device found\n");
+ dev_dbg(dev, "device found\n");
set_freezable();
/* Wait for the timeout to expire or for a disconnect */
if (delay_use > 0) {
- dev_dbg(&us->pusb_intf->dev, "waiting for device to settle "
+ dev_dbg(dev, "waiting for device to settle "
"before scanning\n");
wait_event_freezable_timeout(us->delay_wait,
test_bit(US_FLIDX_DONT_SCAN, &us->dflags),
@@ -840,7 +840,7 @@
mutex_unlock(&us->dev_mutex);
}
scsi_scan_host(us_to_host(us));
- dev_dbg(&us->pusb_intf->dev, "scan complete\n");
+ dev_dbg(dev, "scan complete\n");
/* Should we unbind if no devices were detected? */
}
@@ -876,8 +876,8 @@
*/
host = scsi_host_alloc(&usb_stor_host_template, sizeof(*us));
if (!host) {
- printk(KERN_WARNING USB_STORAGE
- "Unable to allocate the scsi host\n");
+ dev_warn(&intf->dev,
+ "Unable to allocate the scsi host\n");
return -ENOMEM;
}
@@ -925,6 +925,7 @@
{
struct task_struct *th;
int result;
+ struct device *dev = &us->pusb_intf->dev;
/* Make sure the transport and protocol have both been set */
if (!us->transport || !us->proto_handler) {
@@ -949,18 +950,18 @@
goto BadDevice;
snprintf(us->scsi_name, sizeof(us->scsi_name), "usb-storage %s",
dev_name(&us->pusb_intf->dev));
- result = scsi_add_host(us_to_host(us), &us->pusb_intf->dev);
+ result = scsi_add_host(us_to_host(us), dev);
if (result) {
- printk(KERN_WARNING USB_STORAGE
- "Unable to add the scsi host\n");
+ dev_warn(dev,
+ "Unable to add the scsi host\n");
goto BadDevice;
}
/* Start up the thread for delayed SCSI-device scanning */
th = kthread_create(usb_stor_scan_thread, us, "usb-stor-scan");
if (IS_ERR(th)) {
- printk(KERN_WARNING USB_STORAGE
- "Unable to start the device-scanning thread\n");
+ dev_warn(dev,
+ "Unable to start the device-scanning thread\n");
complete(&us->scanning_done);
quiesce_and_remove_host(us);
result = PTR_ERR(th);
@@ -1046,12 +1047,12 @@
{
int retval;
- printk(KERN_INFO "Initializing USB Mass Storage driver...\n");
+ pr_info("Initializing USB Mass Storage driver...\n");
/* register the driver, return usb_register return code if error */
retval = usb_register(&usb_storage_driver);
if (retval == 0) {
- printk(KERN_INFO "USB Mass Storage support registered.\n");
+ pr_info("USB Mass Storage support registered.\n");
usb_usual_set_present(USB_US_TYPE_STOR);
}
return retval;
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index 6971713..89d3bff 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -139,8 +139,7 @@
struct usb_ctrlrequest *cr; /* control requests */
struct usb_sg_request current_sg; /* scatter-gather req. */
unsigned char *iobuf; /* I/O buffer */
- dma_addr_t cr_dma; /* buffer DMA addresses */
- dma_addr_t iobuf_dma;
+ dma_addr_t iobuf_dma; /* buffer DMA addresses */
struct task_struct *ctl_thread; /* the control thread */
/* mutual exclusion and synchronization structures */
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index 6152278..d110588 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -387,8 +387,8 @@
}
/* free up our allocated buffer */
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
up(&dev->limit_sem);
}
@@ -442,8 +442,8 @@
goto error;
}
- buf = usb_buffer_alloc(dev->udev, writesize, GFP_KERNEL,
- &urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, writesize, GFP_KERNEL,
+ &urb->transfer_dma);
if (!buf) {
retval = -ENOMEM;
goto error;
@@ -491,7 +491,7 @@
usb_unanchor_urb(urb);
error:
if (urb) {
- usb_buffer_free(dev->udev, writesize, buf, urb->transfer_dma);
+ usb_free_coherent(dev->udev, writesize, buf, urb->transfer_dma);
usb_free_urb(urb);
}
up(&dev->limit_sem);
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 608d61a..84b744c 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -474,8 +474,6 @@
struct wa_xfer_ctl *xfer_ctl =
container_of(xfer_hdr0, struct wa_xfer_ctl, hdr);
xfer_ctl->bmAttribute = xfer->is_inbound ? 1 : 0;
- BUG_ON(xfer->urb->transfer_flags & URB_NO_SETUP_DMA_MAP
- && xfer->urb->setup_packet == NULL);
memcpy(&xfer_ctl->baSetupData, xfer->urb->setup_packet,
sizeof(xfer_ctl->baSetupData));
break;
diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h
index 759cda5..3d94c42 100644
--- a/drivers/usb/wusbcore/wusbhc.h
+++ b/drivers/usb/wusbcore/wusbhc.h
@@ -58,9 +58,7 @@
#include <linux/mutex.h>
#include <linux/kref.h>
#include <linux/workqueue.h>
-/* FIXME: Yes, I know: BAD--it's not my fault the USB HC iface is not
- * public */
-#include <linux/../../drivers/usb/core/hcd.h>
+#include <linux/usb/hcd.h>
#include <linux/uwb.h>
#include <linux/usb/wusb.h>
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 8e4eacc..748a74b 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -600,8 +600,8 @@
{
usb_free_urb(usb_pcwd->intr_urb);
if (usb_pcwd->intr_buffer != NULL)
- usb_buffer_free(usb_pcwd->udev, usb_pcwd->intr_size,
- usb_pcwd->intr_buffer, usb_pcwd->intr_dma);
+ usb_free_coherent(usb_pcwd->udev, usb_pcwd->intr_size,
+ usb_pcwd->intr_buffer, usb_pcwd->intr_dma);
kfree(usb_pcwd);
}
@@ -671,7 +671,7 @@
le16_to_cpu(endpoint->wMaxPacketSize) : 8);
/* set up the memory buffer's */
- usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size,
+ usb_pcwd->intr_buffer = usb_alloc_coherent(udev, usb_pcwd->intr_size,
GFP_ATOMIC, &usb_pcwd->intr_dma);
if (!usb_pcwd->intr_buffer) {
printk(KERN_ERR PFX "Out of memory\n");
