drm/radeon/kms: initial radeon displayport porting
This is enough to retrieve EDID and DPCP.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index b5713ee..feb52ee 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -49,7 +49,7 @@
radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \
rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \
r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \
- r600_blit_kms.o radeon_pm.o
+ r600_blit_kms.o radeon_pm.o atombios_dp.o
radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
new file mode 100644
index 0000000..a4bc801
--- /dev/null
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright 2007-8 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ * Alex Deucher
+ */
+#include "drmP.h"
+#include "radeon_drm.h"
+#include "radeon.h"
+
+#include "atom.h"
+#include "atom-bits.h"
+#include "drm_dp_helper.h"
+
+#define DP_LINK_STATUS_SIZE 6
+
+bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
+ int num_bytes, u8 *read_byte,
+ u8 read_buf_len, u8 delay)
+{
+ struct drm_device *dev = chan->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION args;
+ int index = GetIndexIntoMasterTable(COMMAND, ProcessAuxChannelTransaction);
+ unsigned char *base;
+
+ memset(&args, 0, sizeof(args));
+
+ base = (unsigned char *)rdev->mode_info.atom_context->scratch;
+
+ memcpy(base, req_bytes, num_bytes);
+
+ args.lpAuxRequest = 0;
+ args.lpDataOut = 16;
+ args.ucDataOutLen = 0;
+ args.ucChannelID = chan->i2c_id;
+ args.ucDelay = delay;
+
+ atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+
+ if (args.ucReplyStatus) {
+ DRM_ERROR("failed to get auxch %02x%02x %02x %02x 0x%02x %02x\n",
+ req_bytes[1], req_bytes[0], req_bytes[2], req_bytes[3],
+ chan->i2c_id, args.ucReplyStatus);
+ return false;
+ }
+
+ if (args.ucDataOutLen && read_byte && read_buf_len) {
+ if (read_buf_len < args.ucDataOutLen) {
+ DRM_ERROR("Buffer to small for return answer %d %d\n",
+ read_buf_len, args.ucDataOutLen);
+ return false;
+ }
+ {
+ int len = min(read_buf_len, args.ucDataOutLen);
+ memcpy(read_byte, base + 16, len);
+ }
+ }
+ return true;
+}
+
+int radeon_dp_encoder_service(struct radeon_device *rdev, int action, int dp_clock,
+ uint8_t ucconfig, uint8_t lane_num)
+{
+ DP_ENCODER_SERVICE_PARAMETERS args;
+ int index = GetIndexIntoMasterTable(COMMAND, DPEncoderService);
+
+ memset(&args, 0, sizeof(args));
+ args.ucLinkClock = dp_clock / 10;
+ args.ucConfig = ucconfig;
+ args.ucAction = action;
+ args.ucLaneNum = lane_num;
+ args.ucStatus = 0;
+
+ atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+ return args.ucStatus;
+}
+
+int radeon_dp_getsinktype(struct radeon_connector *radeon_connector)
+{
+ struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+ struct drm_device *dev = radeon_connector->base.dev;
+ struct radeon_device *rdev = dev->dev_private;
+
+ return radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_GET_SINK_TYPE, 0,
+ radeon_dig_connector->uc_i2c_id, 0);
+}
+
+union dig_transmitter_control {
+ DIG_TRANSMITTER_CONTROL_PS_ALLOCATION v1;
+ DIG_TRANSMITTER_CONTROL_PARAMETERS_V2 v2;
+};
+
+bool radeon_dp_aux_native_write(struct radeon_connector *radeon_connector, uint16_t address,
+ uint8_t send_bytes, uint8_t *send)
+{
+ struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+ struct drm_device *dev = radeon_connector->base.dev;
+ struct radeon_device *rdev = dev->dev_private;
+ u8 msg[20];
+ u8 msg_len, dp_msg_len;
+ bool ret;
+
+ dp_msg_len = 4;
+ msg[0] = address;
+ msg[1] = address >> 8;
+ msg[2] = AUX_NATIVE_WRITE << 4;
+ dp_msg_len += send_bytes;
+ msg[3] = (dp_msg_len << 4) | (send_bytes - 1);
+
+ if (send_bytes > 16)
+ return false;
+
+ memcpy(&msg[4], send, send_bytes);
+ msg_len = 4 + send_bytes;
+ ret = radeon_process_aux_ch(radeon_dig_connector->dp_i2c_bus, msg, msg_len, NULL, 0, 0);
+ return ret;
+}
+
+bool radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, uint16_t address,
+ uint8_t delay, uint8_t expected_bytes,
+ uint8_t *read_p)
+{
+ struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+ struct drm_device *dev = radeon_connector->base.dev;
+ struct radeon_device *rdev = dev->dev_private;
+ u8 msg[20];
+ u8 msg_len, dp_msg_len;
+ bool ret = false;
+ msg_len = 4;
+ dp_msg_len = 4;
+ msg[0] = address;
+ msg[1] = address >> 8;
+ msg[2] = AUX_NATIVE_READ << 4;
+ msg[3] = (dp_msg_len) << 4;
+ msg[3] |= expected_bytes - 1;
+
+ ret = radeon_process_aux_ch(radeon_dig_connector->dp_i2c_bus, msg, msg_len, read_p, expected_bytes, delay);
+ return ret;
+}
+
+void radeon_dp_getdpcp(struct radeon_connector *radeon_connector)
+{
+ struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+ u8 msg[25];
+ int ret;
+
+ ret = radeon_dp_aux_native_read(radeon_connector, DP_DPCP_REV, 0, 8, msg);
+ if (ret) {
+ memcpy(radeon_dig_connector->dpcp, msg, 8);
+ {
+ int i;
+ printk("DPCP: ");
+ for (i = 0; i < 8; i++)
+ printk("%02x ", msg[i]);
+ printk("\n");
+ }
+ }
+ radeon_dig_connector->dpcp[0] = 0;
+ return;
+}
+
+static bool atom_dp_get_link_status(struct radeon_connector *radeon_connector,
+ u8 link_status[DP_LINK_STATUS_SIZE])
+{
+ int ret;
+ ret = radeon_dp_aux_native_read(radeon_connector, DP_LANE0_1_STATUS, 100,
+ DP_LINK_STATUS_SIZE, link_status);
+ if (!ret) {
+ DRM_ERROR("displayport link status failed\n");
+ return false;
+ }
+
+ DRM_INFO("link status %02x %02x %02x %02x %02x %02x\n",
+ link_status[0], link_status[1], link_status[2],
+ link_status[3], link_status[4], link_status[5]);
+ return true;
+}
+
+static void dp_set_power(struct radeon_connector *radeon_connector, u8 power_state)
+{
+ struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+ if (radeon_dig_connector->dpcp[0] >= 0x11) {
+ radeon_dp_aux_native_write(radeon_connector, 0x600, 1,
+ &power_state);
+ }
+}
+
+static void dp_update_dpvs_emph(struct radeon_connector *radeon_connector,
+ u8 train_set[4])
+{
+ struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
+
+// radeon_dp_digtransmitter_setup_vsemph();
+ radeon_dp_aux_native_write(radeon_connector, DP_TRAINING_LANE0_SET,
+ 0/* lc */, train_set);
+}
+
+static void dp_set_training(struct radeon_connector *radeon_connector,
+ u8 training)
+{
+ radeon_dp_aux_native_write(radeon_connector, DP_TRAINING_PATTERN_SET,
+ 1, &training);
+}
+
+int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
+ uint8_t write_byte, uint8_t *read_byte)
+{
+ struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
+ struct radeon_i2c_chan *auxch = (struct radeon_i2c_chan *)adapter;
+ int ret = 0;
+ uint16_t address = algo_data->address;
+ uint8_t msg[5];
+ uint8_t reply[2];
+ int msg_len, dp_msg_len;
+ int reply_bytes;
+
+ /* Set up the command byte */
+ if (mode & MODE_I2C_READ)
+ msg[2] = AUX_I2C_READ << 4;
+ else
+ msg[2] = AUX_I2C_WRITE << 4;
+
+ if (!(mode & MODE_I2C_STOP))
+ msg[2] |= AUX_I2C_MOT << 4;
+
+ msg[0] = address;
+ msg[1] = address >> 8;
+
+ reply_bytes = 1;
+
+ msg_len = 4;
+ dp_msg_len = 3;
+ switch (mode) {
+ case MODE_I2C_WRITE:
+ msg[4] = write_byte;
+ msg_len++;
+ dp_msg_len += 2;
+ break;
+ case MODE_I2C_READ:
+ dp_msg_len += 1;
+ break;
+ default:
+ break;
+ }
+
+ msg[3] = (dp_msg_len) << 4;
+ ret = radeon_process_aux_ch(auxch, msg, msg_len, reply, reply_bytes, 0);
+
+ if (ret) {
+ if (read_byte)
+ *read_byte = reply[0];
+ return reply_bytes;
+ }
+ return -EREMOTEIO;
+}
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 5e41410..de05ac9 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -47,7 +47,7 @@
int connector_type,
struct radeon_i2c_bus_rec *i2c_bus,
bool linkb, uint32_t igp_lane_info,
- uint16_t connector_object_id);
+ uint16_t connector_object_id, uint8_t uc_i2c_id);
/* from radeon_legacy_encoder.c */
extern void
@@ -60,8 +60,8 @@
struct _ATOM_SUPPORTED_DEVICES_INFO_2d1 info_2d1;
};
-static inline struct radeon_i2c_bus_rec radeon_lookup_gpio(struct drm_device
- *dev, uint8_t id)
+static inline struct radeon_i2c_bus_rec radeon_lookup_gpio(struct drm_device *dev,
+ uint8_t id)
{
struct radeon_device *rdev = dev->dev_private;
struct atom_context *ctx = rdev->mode_info.atom_context;
@@ -276,7 +276,7 @@
uint16_t igp_lane_info, conn_id, connector_object_id;
bool linkb;
struct radeon_i2c_bus_rec ddc_bus;
-
+ ATOM_I2C_ID_CONFIG_ACCESS i2c_id;
atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset);
if (data_offset == 0)
@@ -302,7 +302,7 @@
path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
path_size += le16_to_cpu(path->usSize);
linkb = false;
-
+ i2c_id.ucAccess = 0;
if (device_support & le16_to_cpu(path->usDeviceTag)) {
uint8_t con_obj_id, con_obj_num, con_obj_type;
@@ -420,7 +420,7 @@
asObjects[j].
usRecordOffset));
ATOM_I2C_RECORD *i2c_record;
-
+
while (record->ucRecordType > 0
&& record->
ucRecordType <=
@@ -431,6 +431,7 @@
i2c_record =
(ATOM_I2C_RECORD
*) record;
+ i2c_id.sbfAccess = i2c_record->sucI2cId;
line_mux =
i2c_record->
sucI2cId.
@@ -473,7 +474,7 @@
usDeviceTag),
connector_type, &ddc_bus,
linkb, igp_lane_info,
- connector_object_id);
+ connector_object_id, i2c_id.ucAccess);
}
}
@@ -692,7 +693,7 @@
connector_type,
&bios_connectors[i].ddc_bus,
false, 0,
- connector_object_id);
+ connector_object_id, 0);
}
}
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 7ab3c50..7334275 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -896,6 +896,54 @@
.force = radeon_dvi_force,
};
+static int radeon_dp_get_modes(struct drm_connector *connector)
+{
+ struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+ int ret;
+
+ ret = radeon_ddc_get_modes(radeon_connector);
+ return ret;
+}
+
+static enum drm_connector_status radeon_dp_detect(struct drm_connector *connector)
+{
+ struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+ struct drm_encoder *encoder = NULL;
+ struct drm_encoder_helper_funcs *encoder_funcs;
+ struct drm_mode_object *obj;
+ int i;
+ enum drm_connector_status ret = connector_status_disconnected;
+ int sink_type;
+ bool dret;
+
+ if (radeon_connector->edid) {
+ kfree(radeon_connector->edid);
+ radeon_connector->edid = NULL;
+ }
+
+ sink_type = radeon_dp_getsinktype(radeon_connector);
+ if (sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
+ radeon_dp_getdpcp(radeon_connector);
+ ret = connector_status_connected;
+ }
+ return ret;
+}
+
+struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
+ .get_modes = radeon_dp_get_modes,
+ .mode_valid = radeon_dvi_mode_valid,
+ .best_encoder = radeon_dvi_encoder,
+};
+
+struct drm_connector_funcs radeon_dp_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = radeon_dp_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .set_property = radeon_connector_set_property,
+ .destroy = radeon_connector_destroy,
+ .force = radeon_dvi_force,
+};
+
void
radeon_add_atom_connector(struct drm_device *dev,
uint32_t connector_id,
@@ -904,7 +952,7 @@
struct radeon_i2c_bus_rec *i2c_bus,
bool linkb,
uint32_t igp_lane_info,
- uint16_t connector_object_id)
+ uint16_t connector_object_id, uint8_t uc_i2c_id)
{
struct radeon_device *rdev = dev->dev_private;
struct drm_connector *connector;
@@ -1030,10 +1078,13 @@
radeon_dig_connector->linkb = linkb;
radeon_dig_connector->igp_lane_info = igp_lane_info;
radeon_connector->con_priv = radeon_dig_connector;
- drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
- ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
+ drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type);
+ ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
if (ret)
goto failed;
+ /* add DP i2c bus */
+ radeon_dig_connector->uc_i2c_id = uc_i2c_id;
+ radeon_dig_connector->dp_i2c_bus = radeon_i2c_create_dp(dev, "DP-auxch", true, uc_i2c_id);
if (i2c_bus->valid) {
radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DP");
if (!radeon_connector->ddc_bus)
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 62b0237..a1c2804 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -337,6 +337,13 @@
{
int ret = 0;
+ if (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+ struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+ if (dig->dp_i2c_bus) {
+ radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
+ DRM_INFO("got edid %p from DP\n", radeon_connector->edid);
+ }
+ }
if (!radeon_connector->ddc_bus)
return -1;
if (!radeon_connector->edid) {
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 291f6dd..37f5ea1 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -851,6 +851,99 @@
}
static void
+atombios_dig_transmitter_setup_vsemph(struct drm_encoder *encoder, u8 lane_num,
+ u8 lane_set)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ union dig_transmitter_control args;
+ int index = 0, num = 0;
+ uint8_t frev, crev;
+ struct radeon_encoder_atom_dig *dig;
+ struct drm_connector *connector;
+ struct radeon_connector *radeon_connector;
+ struct radeon_connector_atom_dig *dig_connector;
+
+ connector = radeon_get_connector_for_encoder(encoder);
+ if (!connector)
+ return;
+
+ radeon_connector = to_radeon_connector(connector);
+
+ if (!radeon_encoder->enc_priv)
+ return;
+
+ dig = radeon_encoder->enc_priv;
+
+ if (!radeon_connector->con_priv)
+ return;
+
+ dig_connector = radeon_connector->con_priv;
+
+ memset(&args, 0, sizeof(args));
+
+ if (ASIC_IS_DCE32(rdev))
+ index = GetIndexIntoMasterTable(COMMAND, UNIPHYTransmitterControl);
+ else {
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ index = GetIndexIntoMasterTable(COMMAND, DIG1TransmitterControl);
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ index = GetIndexIntoMasterTable(COMMAND, DIG2TransmitterControl);
+ break;
+ }
+ }
+
+ atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev);
+
+ args.v1.ucAction = ATOM_TRANSMITTER_ACTION_SETUP_VSEMPH;
+ args.v1.asMode.ucLaneSel = lane_num;
+ args.v1.asMode.ucLaneSet = lane_set;
+
+ if (ASIC_IS_DCE32(rdev)) {
+ args.v2.acConfig.fDPConnector = 1;
+
+ if (dig->dig_block)
+ args.v2.acConfig.ucEncoderSel = 1;
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ args.v2.acConfig.ucTransmitterSel = 0;
+ num = 0;
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ args.v2.acConfig.ucTransmitterSel = 1;
+ num = 1;
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ args.v2.acConfig.ucTransmitterSel = 2;
+ num = 2;
+ break;
+ }
+ } else {
+ args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL;
+
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_DIG1_ENCODER;
+ if (dig_connector->linkb)
+ args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_LINKB | ATOM_TRANSMITTER_CONFIG_LANE_0_3;
+ else
+ args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_LINKA | ATOM_TRANSMITTER_CONFIG_LANE_0_3;
+ }
+ }
+
+ atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+
+ if (ASIC_IS_DCE32(rdev))
+ DRM_INFO("Output UNIPHY%d transmitter VSEMPH setup success\n", num);
+ else
+ DRM_INFO("Output DIG%d transmitter VSEMPH setup success\n", num);
+}
+
+static void
atombios_yuv_setup(struct drm_encoder *encoder, bool enable)
{
struct drm_device *dev = encoder->dev;
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 6c645fb..f200312 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -172,20 +172,19 @@
return NULL;
i2c->adapter.owner = THIS_MODULE;
- i2c->adapter.algo_data = &i2c->algo;
i2c->dev = dev;
- i2c->algo.setsda = set_data;
- i2c->algo.setscl = set_clock;
- i2c->algo.getsda = get_data;
- i2c->algo.getscl = get_clock;
- i2c->algo.udelay = 20;
+ i2c_set_adapdata(&i2c->adapter, i2c);
+ i2c->adapter.algo_data = &i2c->algo.bit;
+ i2c->algo.bit.setsda = set_data;
+ i2c->algo.bit.setscl = set_clock;
+ i2c->algo.bit.getsda = get_data;
+ i2c->algo.bit.getscl = get_clock;
+ i2c->algo.bit.udelay = 20;
/* vesa says 2.2 ms is enough, 1 jiffy doesn't seem to always
* make this, 2 jiffies is a lot more reliable */
- i2c->algo.timeout = 2;
- i2c->algo.data = i2c;
+ i2c->algo.bit.timeout = 2;
+ i2c->algo.bit.data = i2c;
i2c->rec = *rec;
- i2c_set_adapdata(&i2c->adapter, i2c);
-
ret = i2c_bit_add_bus(&i2c->adapter);
if (ret) {
DRM_INFO("Failed to register i2c %s\n", name);
@@ -199,6 +198,37 @@
}
+struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
+ const char *name, bool dp, u8 i2c_id)
+{
+ struct radeon_i2c_chan *i2c;
+ int ret;
+
+ i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
+ if (i2c == NULL)
+ return NULL;
+
+ i2c->i2c_id = i2c_id;
+ i2c->adapter.owner = THIS_MODULE;
+ i2c->dev = dev;
+ i2c_set_adapdata(&i2c->adapter, i2c);
+ i2c->adapter.algo_data = &i2c->algo.dp;
+ i2c->algo.dp.aux_ch = radeon_dp_i2c_aux_ch;
+ i2c->algo.dp.address = 0;
+ ret = i2c_dp_aux_add_bus(&i2c->adapter);
+ if (ret) {
+ DRM_INFO("Failed to register i2c %s\n", name);
+ goto out_free;
+ }
+
+ return i2c;
+out_free:
+ kfree(i2c);
+ return NULL;
+
+}
+
+
void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
{
if (!i2c)
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 135693d..ce1cdc7 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -33,6 +33,7 @@
#include <drm_crtc.h>
#include <drm_mode.h>
#include <drm_edid.h>
+#include <drm_dp_helper.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
#include <linux/i2c-algo-bit.h>
@@ -164,10 +165,14 @@
};
struct radeon_i2c_chan {
- struct drm_device *dev;
struct i2c_adapter adapter;
- struct i2c_algo_bit_data algo;
+ struct drm_device *dev;
+ union {
+ struct i2c_algo_dp_aux_data dp;
+ struct i2c_algo_bit_data bit;
+ } algo;
struct radeon_i2c_bus_rec rec;
+ uint8_t i2c_id;
};
/* mostly for macs, but really any system without connector tables */
@@ -328,6 +333,9 @@
struct radeon_connector_atom_dig {
uint32_t igp_lane_info;
bool linkb;
+ uint16_t uc_i2c_id;
+ struct radeon_i2c_chan *dp_i2c_bus;
+ u8 dpcp[8];
};
struct radeon_connector {
@@ -344,6 +352,8 @@
void *con_priv;
bool dac_load_detect;
uint16_t connector_object_id;
+ /* need to keep this for display port */
+//
};
struct radeon_framebuffer {
@@ -351,6 +361,13 @@
struct drm_gem_object *obj;
};
+extern int radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
+extern void radeon_dp_getdpcp(struct radeon_connector *connector);
+extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
+ uint8_t write_byte, uint8_t *read_byte);
+
+extern struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
+ const char *name, bool dp, u8 i2c_id);
extern struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
struct radeon_i2c_bus_rec *rec,
const char *name);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index e49879c..376155f 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -43,6 +43,8 @@
#define AUX_I2C_REPLY_MASK (0x3 << 6)
/* AUX CH addresses */
+#define DP_DPCP_REV 0x0
+
#define DP_LINK_BW_SET 0x100
# define DP_LINK_BW_1_62 0x06
# define DP_LINK_BW_2_7 0x0a
