| /* |
| * OSS emulation layer for the mixer interface |
| * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| * |
| * |
| * 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/init.h> |
| #include <linux/slab.h> |
| #include <linux/time.h> |
| #include <linux/string.h> |
| #include <sound/core.h> |
| #include <sound/minors.h> |
| #include <sound/control.h> |
| #include <sound/info.h> |
| #include <sound/mixer_oss.h> |
| #include <linux/soundcard.h> |
| |
| #define OSS_ALSAEMULVER _SIOR ('M', 249, int) |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
| MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); |
| |
| static int snd_mixer_oss_open(struct inode *inode, struct file *file) |
| { |
| struct snd_card *card; |
| struct snd_mixer_oss_file *fmixer; |
| int err; |
| |
| card = snd_lookup_oss_minor_data(iminor(inode), |
| SNDRV_OSS_DEVICE_TYPE_MIXER); |
| if (card == NULL) |
| return -ENODEV; |
| if (card->mixer_oss == NULL) |
| return -ENODEV; |
| err = snd_card_file_add(card, file); |
| if (err < 0) |
| return err; |
| fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); |
| if (fmixer == NULL) { |
| snd_card_file_remove(card, file); |
| return -ENOMEM; |
| } |
| fmixer->card = card; |
| fmixer->mixer = card->mixer_oss; |
| file->private_data = fmixer; |
| if (!try_module_get(card->module)) { |
| kfree(fmixer); |
| snd_card_file_remove(card, file); |
| return -EFAULT; |
| } |
| return 0; |
| } |
| |
| static int snd_mixer_oss_release(struct inode *inode, struct file *file) |
| { |
| struct snd_mixer_oss_file *fmixer; |
| |
| if (file->private_data) { |
| fmixer = (struct snd_mixer_oss_file *) file->private_data; |
| module_put(fmixer->card->module); |
| snd_card_file_remove(fmixer->card, file); |
| kfree(fmixer); |
| } |
| return 0; |
| } |
| |
| static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer, |
| mixer_info __user *_info) |
| { |
| struct snd_card *card = fmixer->card; |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct mixer_info info; |
| |
| memset(&info, 0, sizeof(info)); |
| strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); |
| strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); |
| info.modify_counter = card->mixer_oss_change_count; |
| if (copy_to_user(_info, &info, sizeof(info))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer, |
| _old_mixer_info __user *_info) |
| { |
| struct snd_card *card = fmixer->card; |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| _old_mixer_info info; |
| |
| memset(&info, 0, sizeof(info)); |
| strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); |
| strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); |
| if (copy_to_user(_info, &info, sizeof(info))) |
| return -EFAULT; |
| return 0; |
| } |
| |
| static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| int result = 0; |
| |
| if (mixer == NULL) |
| return -EIO; |
| if (mixer->get_recsrc && mixer->put_recsrc) |
| result |= SOUND_CAP_EXCL_INPUT; |
| return result; |
| } |
| |
| static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_mixer_oss_slot *pslot; |
| int result = 0, chn; |
| |
| if (mixer == NULL) |
| return -EIO; |
| for (chn = 0; chn < 31; chn++) { |
| pslot = &mixer->slots[chn]; |
| if (pslot->put_volume || pslot->put_recsrc) |
| result |= 1 << chn; |
| } |
| return result; |
| } |
| |
| static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_mixer_oss_slot *pslot; |
| int result = 0, chn; |
| |
| if (mixer == NULL) |
| return -EIO; |
| for (chn = 0; chn < 31; chn++) { |
| pslot = &mixer->slots[chn]; |
| if (pslot->put_volume && pslot->stereo) |
| result |= 1 << chn; |
| } |
| return result; |
| } |
| |
| static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| int result = 0; |
| |
| if (mixer == NULL) |
| return -EIO; |
| if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ |
| result = mixer->mask_recsrc; |
| } else { |
| struct snd_mixer_oss_slot *pslot; |
| int chn; |
| for (chn = 0; chn < 31; chn++) { |
| pslot = &mixer->slots[chn]; |
| if (pslot->put_recsrc) |
| result |= 1 << chn; |
| } |
| } |
| return result; |
| } |
| |
| static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| int result = 0; |
| |
| if (mixer == NULL) |
| return -EIO; |
| if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ |
| int err; |
| if ((err = mixer->get_recsrc(fmixer, &result)) < 0) |
| return err; |
| result = 1 << result; |
| } else { |
| struct snd_mixer_oss_slot *pslot; |
| int chn; |
| for (chn = 0; chn < 31; chn++) { |
| pslot = &mixer->slots[chn]; |
| if (pslot->get_recsrc) { |
| int active = 0; |
| pslot->get_recsrc(fmixer, pslot, &active); |
| if (active) |
| result |= 1 << chn; |
| } |
| } |
| } |
| return mixer->oss_recsrc = result; |
| } |
| |
| static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_mixer_oss_slot *pslot; |
| int chn, active; |
| int result = 0; |
| |
| if (mixer == NULL) |
| return -EIO; |
| if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */ |
| if (recsrc & ~mixer->oss_recsrc) |
| recsrc &= ~mixer->oss_recsrc; |
| mixer->put_recsrc(fmixer, ffz(~recsrc)); |
| mixer->get_recsrc(fmixer, &result); |
| result = 1 << result; |
| } |
| for (chn = 0; chn < 31; chn++) { |
| pslot = &mixer->slots[chn]; |
| if (pslot->put_recsrc) { |
| active = (recsrc & (1 << chn)) ? 1 : 0; |
| pslot->put_recsrc(fmixer, pslot, active); |
| } |
| } |
| if (! result) { |
| for (chn = 0; chn < 31; chn++) { |
| pslot = &mixer->slots[chn]; |
| if (pslot->get_recsrc) { |
| active = 0; |
| pslot->get_recsrc(fmixer, pslot, &active); |
| if (active) |
| result |= 1 << chn; |
| } |
| } |
| } |
| return result; |
| } |
| |
| static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_mixer_oss_slot *pslot; |
| int result = 0, left, right; |
| |
| if (mixer == NULL || slot > 30) |
| return -EIO; |
| pslot = &mixer->slots[slot]; |
| left = pslot->volume[0]; |
| right = pslot->volume[1]; |
| if (pslot->get_volume) |
| result = pslot->get_volume(fmixer, pslot, &left, &right); |
| if (!pslot->stereo) |
| right = left; |
| snd_assert(left >= 0 && left <= 100, return -EIO); |
| snd_assert(right >= 0 && right <= 100, return -EIO); |
| if (result >= 0) { |
| pslot->volume[0] = left; |
| pslot->volume[1] = right; |
| result = (left & 0xff) | ((right & 0xff) << 8); |
| } |
| return result; |
| } |
| |
| static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer, |
| int slot, int volume) |
| { |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_mixer_oss_slot *pslot; |
| int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff; |
| |
| if (mixer == NULL || slot > 30) |
| return -EIO; |
| pslot = &mixer->slots[slot]; |
| if (left > 100) |
| left = 100; |
| if (right > 100) |
| right = 100; |
| if (!pslot->stereo) |
| right = left; |
| if (pslot->put_volume) |
| result = pslot->put_volume(fmixer, pslot, left, right); |
| if (result < 0) |
| return result; |
| pslot->volume[0] = left; |
| pslot->volume[1] = right; |
| return (left & 0xff) | ((right & 0xff) << 8); |
| } |
| |
| static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg) |
| { |
| void __user *argp = (void __user *)arg; |
| int __user *p = argp; |
| int tmp; |
| |
| snd_assert(fmixer != NULL, return -ENXIO); |
| if (((cmd >> 8) & 0xff) == 'M') { |
| switch (cmd) { |
| case SOUND_MIXER_INFO: |
| return snd_mixer_oss_info(fmixer, argp); |
| case SOUND_OLD_MIXER_INFO: |
| return snd_mixer_oss_info_obsolete(fmixer, argp); |
| case SOUND_MIXER_WRITE_RECSRC: |
| if (get_user(tmp, p)) |
| return -EFAULT; |
| tmp = snd_mixer_oss_set_recsrc(fmixer, tmp); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| case OSS_GETVERSION: |
| return put_user(SNDRV_OSS_VERSION, p); |
| case OSS_ALSAEMULVER: |
| return put_user(1, p); |
| case SOUND_MIXER_READ_DEVMASK: |
| tmp = snd_mixer_oss_devmask(fmixer); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| case SOUND_MIXER_READ_STEREODEVS: |
| tmp = snd_mixer_oss_stereodevs(fmixer); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| case SOUND_MIXER_READ_RECMASK: |
| tmp = snd_mixer_oss_recmask(fmixer); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| case SOUND_MIXER_READ_CAPS: |
| tmp = snd_mixer_oss_caps(fmixer); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| case SOUND_MIXER_READ_RECSRC: |
| tmp = snd_mixer_oss_get_recsrc(fmixer); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| } |
| } |
| if (cmd & SIOC_IN) { |
| if (get_user(tmp, p)) |
| return -EFAULT; |
| tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| } else if (cmd & SIOC_OUT) { |
| tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff); |
| if (tmp < 0) |
| return tmp; |
| return put_user(tmp, p); |
| } |
| return -ENXIO; |
| } |
| |
| static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg); |
| } |
| |
| int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg) |
| { |
| struct snd_mixer_oss_file fmixer; |
| |
| snd_assert(card != NULL, return -ENXIO); |
| if (card->mixer_oss == NULL) |
| return -ENXIO; |
| memset(&fmixer, 0, sizeof(fmixer)); |
| fmixer.card = card; |
| fmixer.mixer = card->mixer_oss; |
| return snd_mixer_oss_ioctl1(&fmixer, cmd, arg); |
| } |
| |
| #ifdef CONFIG_COMPAT |
| /* all compatible */ |
| #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl |
| #else |
| #define snd_mixer_oss_ioctl_compat NULL |
| #endif |
| |
| /* |
| * REGISTRATION PART |
| */ |
| |
| static const struct file_operations snd_mixer_oss_f_ops = |
| { |
| .owner = THIS_MODULE, |
| .open = snd_mixer_oss_open, |
| .release = snd_mixer_oss_release, |
| .unlocked_ioctl = snd_mixer_oss_ioctl, |
| .compat_ioctl = snd_mixer_oss_ioctl_compat, |
| }; |
| |
| /* |
| * utilities |
| */ |
| |
| static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax) |
| { |
| long orange = omax - omin, nrange = nmax - nmin; |
| |
| if (orange == 0) |
| return 0; |
| return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin; |
| } |
| |
| /* convert from alsa native to oss values (0-100) */ |
| static long snd_mixer_oss_conv1(long val, long min, long max, int *old) |
| { |
| if (val == snd_mixer_oss_conv(*old, 0, 100, min, max)) |
| return *old; |
| return snd_mixer_oss_conv(val, min, max, 0, 100); |
| } |
| |
| /* convert from oss to alsa native values */ |
| static long snd_mixer_oss_conv2(long val, long min, long max) |
| { |
| return snd_mixer_oss_conv(val, 0, 100, min, max); |
| } |
| |
| #if 0 |
| static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot) |
| { |
| struct snd_mixer_oss *mixer = card->mixer_oss; |
| if (mixer) |
| mixer->mask_recsrc |= 1 << slot; |
| } |
| |
| static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot) |
| { |
| struct snd_mixer_oss *mixer = card->mixer_oss; |
| if (mixer && (mixer->mask_recsrc & (1 << slot))) |
| return 1; |
| return 0; |
| } |
| #endif |
| |
| #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 |
| |
| #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 |
| #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 |
| #define SNDRV_MIXER_OSS_ITEM_GROUTE 2 |
| #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 |
| #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 |
| #define SNDRV_MIXER_OSS_ITEM_PROUTE 5 |
| #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 |
| #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 |
| #define SNDRV_MIXER_OSS_ITEM_CROUTE 8 |
| #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 |
| #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 |
| |
| #define SNDRV_MIXER_OSS_ITEM_COUNT 11 |
| |
| #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) |
| #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) |
| #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) |
| #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) |
| #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) |
| #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) |
| #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) |
| #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) |
| #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) |
| #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) |
| #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) |
| |
| struct slot { |
| unsigned int signature; |
| unsigned int present; |
| unsigned int channels; |
| unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; |
| unsigned int capture_item; |
| struct snd_mixer_oss_assign_table *assigned; |
| unsigned int allocated: 1; |
| }; |
| |
| #define ID_UNKNOWN ((unsigned int)-1) |
| |
| static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) |
| { |
| struct snd_card *card = mixer->card; |
| struct snd_ctl_elem_id id; |
| |
| memset(&id, 0, sizeof(id)); |
| id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
| strcpy(id.name, name); |
| id.index = index; |
| return snd_ctl_find_id(card, &id); |
| } |
| |
| static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| unsigned int numid, |
| int *left, int *right) |
| { |
| struct snd_ctl_elem_info *uinfo; |
| struct snd_ctl_elem_value *uctl; |
| struct snd_kcontrol *kctl; |
| struct snd_card *card = fmixer->card; |
| |
| if (numid == ID_UNKNOWN) |
| return; |
| down_read(&card->controls_rwsem); |
| if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { |
| up_read(&card->controls_rwsem); |
| return; |
| } |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
| if (uinfo == NULL || uctl == NULL) |
| goto __unalloc; |
| if (kctl->info(kctl, uinfo)) |
| goto __unalloc; |
| if (kctl->get(kctl, uctl)) |
| goto __unalloc; |
| if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && |
| uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) |
| goto __unalloc; |
| *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); |
| if (uinfo->count > 1) |
| *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); |
| __unalloc: |
| up_read(&card->controls_rwsem); |
| kfree(uctl); |
| kfree(uinfo); |
| } |
| |
| static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| unsigned int numid, |
| int *left, int *right, |
| int route) |
| { |
| struct snd_ctl_elem_info *uinfo; |
| struct snd_ctl_elem_value *uctl; |
| struct snd_kcontrol *kctl; |
| struct snd_card *card = fmixer->card; |
| |
| if (numid == ID_UNKNOWN) |
| return; |
| down_read(&card->controls_rwsem); |
| if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { |
| up_read(&card->controls_rwsem); |
| return; |
| } |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
| if (uinfo == NULL || uctl == NULL) |
| goto __unalloc; |
| if (kctl->info(kctl, uinfo)) |
| goto __unalloc; |
| if (kctl->get(kctl, uctl)) |
| goto __unalloc; |
| if (!uctl->value.integer.value[0]) { |
| *left = 0; |
| if (uinfo->count == 1) |
| *right = 0; |
| } |
| if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) |
| *right = 0; |
| __unalloc: |
| up_read(&card->controls_rwsem); |
| kfree(uctl); |
| kfree(uinfo); |
| } |
| |
| static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| int *left, int *right) |
| { |
| struct slot *slot = (struct slot *)pslot->private_data; |
| |
| *left = *right = 100; |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { |
| snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { |
| snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { |
| snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); |
| } |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { |
| snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { |
| snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { |
| snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { |
| snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); |
| } |
| return 0; |
| } |
| |
| static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| unsigned int numid, |
| int left, int right) |
| { |
| struct snd_ctl_elem_info *uinfo; |
| struct snd_ctl_elem_value *uctl; |
| struct snd_kcontrol *kctl; |
| struct snd_card *card = fmixer->card; |
| int res; |
| |
| if (numid == ID_UNKNOWN) |
| return; |
| down_read(&card->controls_rwsem); |
| if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) |
| return; |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
| if (uinfo == NULL || uctl == NULL) |
| goto __unalloc; |
| if (kctl->info(kctl, uinfo)) |
| goto __unalloc; |
| if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && |
| uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) |
| goto __unalloc; |
| uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); |
| if (uinfo->count > 1) |
| uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); |
| if ((res = kctl->put(kctl, uctl)) < 0) |
| goto __unalloc; |
| if (res > 0) |
| snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); |
| __unalloc: |
| up_read(&card->controls_rwsem); |
| kfree(uctl); |
| kfree(uinfo); |
| } |
| |
| static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| unsigned int numid, |
| int left, int right, |
| int route) |
| { |
| struct snd_ctl_elem_info *uinfo; |
| struct snd_ctl_elem_value *uctl; |
| struct snd_kcontrol *kctl; |
| struct snd_card *card = fmixer->card; |
| int res; |
| |
| if (numid == ID_UNKNOWN) |
| return; |
| down_read(&card->controls_rwsem); |
| if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { |
| up_read(&fmixer->card->controls_rwsem); |
| return; |
| } |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
| if (uinfo == NULL || uctl == NULL) |
| goto __unalloc; |
| if (kctl->info(kctl, uinfo)) |
| goto __unalloc; |
| if (uinfo->count > 1) { |
| uctl->value.integer.value[0] = left > 0 ? 1 : 0; |
| uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; |
| if (route) { |
| uctl->value.integer.value[1] = |
| uctl->value.integer.value[2] = 0; |
| } |
| } else { |
| uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; |
| } |
| if ((res = kctl->put(kctl, uctl)) < 0) |
| goto __unalloc; |
| if (res > 0) |
| snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); |
| __unalloc: |
| up_read(&card->controls_rwsem); |
| kfree(uctl); |
| kfree(uinfo); |
| } |
| |
| static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| int left, int right) |
| { |
| struct slot *slot = (struct slot *)pslot->private_data; |
| |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { |
| snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) |
| snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { |
| snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { |
| snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); |
| } |
| if (left || right) { |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); |
| } else { |
| if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); |
| } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); |
| } |
| } |
| return 0; |
| } |
| |
| static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| int *active) |
| { |
| struct slot *slot = (struct slot *)pslot->private_data; |
| int left, right; |
| |
| left = right = 1; |
| snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); |
| *active = (left || right) ? 1 : 0; |
| return 0; |
| } |
| |
| static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| int *active) |
| { |
| struct slot *slot = (struct slot *)pslot->private_data; |
| int left, right; |
| |
| left = right = 1; |
| snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); |
| *active = (left || right) ? 1 : 0; |
| return 0; |
| } |
| |
| static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| int active) |
| { |
| struct slot *slot = (struct slot *)pslot->private_data; |
| |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); |
| return 0; |
| } |
| |
| static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
| struct snd_mixer_oss_slot *pslot, |
| int active) |
| { |
| struct slot *slot = (struct slot *)pslot->private_data; |
| |
| snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); |
| return 0; |
| } |
| |
| static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) |
| { |
| struct snd_card *card = fmixer->card; |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_kcontrol *kctl; |
| struct snd_mixer_oss_slot *pslot; |
| struct slot *slot; |
| struct snd_ctl_elem_info *uinfo; |
| struct snd_ctl_elem_value *uctl; |
| int err, idx; |
| |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
| if (uinfo == NULL || uctl == NULL) { |
| err = -ENOMEM; |
| goto __unlock; |
| } |
| down_read(&card->controls_rwsem); |
| kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
| if (! kctl) { |
| err = -ENOENT; |
| goto __unlock; |
| } |
| if ((err = kctl->info(kctl, uinfo)) < 0) |
| goto __unlock; |
| if ((err = kctl->get(kctl, uctl)) < 0) |
| goto __unlock; |
| for (idx = 0; idx < 32; idx++) { |
| if (!(mixer->mask_recsrc & (1 << idx))) |
| continue; |
| pslot = &mixer->slots[idx]; |
| slot = (struct slot *)pslot->private_data; |
| if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) |
| continue; |
| if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) |
| continue; |
| if (slot->capture_item == uctl->value.enumerated.item[0]) { |
| *active_index = idx; |
| break; |
| } |
| } |
| err = 0; |
| __unlock: |
| up_read(&card->controls_rwsem); |
| kfree(uctl); |
| kfree(uinfo); |
| return err; |
| } |
| |
| static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) |
| { |
| struct snd_card *card = fmixer->card; |
| struct snd_mixer_oss *mixer = fmixer->mixer; |
| struct snd_kcontrol *kctl; |
| struct snd_mixer_oss_slot *pslot; |
| struct slot *slot = NULL; |
| struct snd_ctl_elem_info *uinfo; |
| struct snd_ctl_elem_value *uctl; |
| int err; |
| unsigned int idx; |
| |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
| if (uinfo == NULL || uctl == NULL) { |
| err = -ENOMEM; |
| goto __unlock; |
| } |
| down_read(&card->controls_rwsem); |
| kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
| if (! kctl) { |
| err = -ENOENT; |
| goto __unlock; |
| } |
| if ((err = kctl->info(kctl, uinfo)) < 0) |
| goto __unlock; |
| for (idx = 0; idx < 32; idx++) { |
| if (!(mixer->mask_recsrc & (1 << idx))) |
| continue; |
| pslot = &mixer->slots[idx]; |
| slot = (struct slot *)pslot->private_data; |
| if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) |
| continue; |
| if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) |
| continue; |
| if (idx == active_index) |
| break; |
| slot = NULL; |
| } |
| if (! slot) |
| goto __unlock; |
| for (idx = 0; idx < uinfo->count; idx++) |
| uctl->value.enumerated.item[idx] = slot->capture_item; |
| err = kctl->put(kctl, uctl); |
| if (err > 0) |
| snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); |
| err = 0; |
| __unlock: |
| up_read(&card->controls_rwsem); |
| kfree(uctl); |
| kfree(uinfo); |
| return err; |
| } |
| |
| struct snd_mixer_oss_assign_table { |
| int oss_id; |
| const char *name; |
| int index; |
| }; |
| |
| static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) |
| { |
| struct snd_ctl_elem_info *info; |
| struct snd_kcontrol *kcontrol; |
| struct snd_card *card = mixer->card; |
| int err; |
| |
| down_read(&card->controls_rwsem); |
| kcontrol = snd_mixer_oss_test_id(mixer, name, index); |
| if (kcontrol == NULL) { |
| up_read(&card->controls_rwsem); |
| return 0; |
| } |
| info = kmalloc(sizeof(*info), GFP_KERNEL); |
| if (! info) { |
| up_read(&card->controls_rwsem); |
| return -ENOMEM; |
| } |
| if ((err = kcontrol->info(kcontrol, info)) < 0) { |
| up_read(&card->controls_rwsem); |
| kfree(info); |
| return err; |
| } |
| slot->numid[item] = kcontrol->id.numid; |
| up_read(&card->controls_rwsem); |
| if (info->count > slot->channels) |
| slot->channels = info->count; |
| slot->present |= 1 << item; |
| kfree(info); |
| return 0; |
| } |
| |
| static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) |
| { |
| struct slot *p = (struct slot *)chn->private_data; |
| if (p) { |
| if (p->allocated && p->assigned) { |
| kfree(p->assigned->name); |
| kfree(p->assigned); |
| } |
| kfree(p); |
| } |
| } |
| |
| static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) |
| { |
| int idx = rslot->number; /* remember this */ |
| if (rslot->private_free) |
| rslot->private_free(rslot); |
| memset(rslot, 0, sizeof(*rslot)); |
| rslot->number = idx; |
| } |
| |
| /* In a separate function to keep gcc 3.2 happy - do NOT merge this in |
| snd_mixer_oss_build_input! */ |
| static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer, |
| struct snd_mixer_oss_assign_table *ptr, |
| struct slot *slot) |
| { |
| char str[64]; |
| int err; |
| |
| err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_GLOBAL); |
| if (err) |
| return err; |
| sprintf(str, "%s Switch", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_GSWITCH); |
| if (err) |
| return err; |
| sprintf(str, "%s Route", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_GROUTE); |
| if (err) |
| return err; |
| sprintf(str, "%s Volume", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_GVOLUME); |
| if (err) |
| return err; |
| sprintf(str, "%s Playback Switch", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_PSWITCH); |
| if (err) |
| return err; |
| sprintf(str, "%s Playback Route", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_PROUTE); |
| if (err) |
| return err; |
| sprintf(str, "%s Playback Volume", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_PVOLUME); |
| if (err) |
| return err; |
| sprintf(str, "%s Capture Switch", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_CSWITCH); |
| if (err) |
| return err; |
| sprintf(str, "%s Capture Route", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_CROUTE); |
| if (err) |
| return err; |
| sprintf(str, "%s Capture Volume", ptr->name); |
| err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| SNDRV_MIXER_OSS_ITEM_CVOLUME); |
| if (err) |
| return err; |
| |
| return 0; |
| } |
| |
| /* |
| * build an OSS mixer element. |
| * ptr_allocated means the entry is dynamically allocated (change via proc file). |
| * when replace_old = 1, the old entry is replaced with the new one. |
| */ |
| static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mixer_oss_assign_table *ptr, int ptr_allocated, int replace_old) |
| { |
| struct slot slot; |
| struct slot *pslot; |
| struct snd_kcontrol *kctl; |
| struct snd_mixer_oss_slot *rslot; |
| char str[64]; |
| |
| /* check if already assigned */ |
| if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) |
| return 0; |
| |
| memset(&slot, 0, sizeof(slot)); |
| memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ |
| if (snd_mixer_oss_build_test_all(mixer, ptr, &slot)) |
| return 0; |
| down_read(&mixer->card->controls_rwsem); |
| if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { |
| struct snd_ctl_elem_info *uinfo; |
| |
| uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| if (! uinfo) { |
| up_read(&mixer->card->controls_rwsem); |
| return -ENOMEM; |
| } |
| |
| if (kctl->info(kctl, uinfo)) { |
| up_read(&mixer->card->controls_rwsem); |
| return 0; |
| } |
| strcpy(str, ptr->name); |
| if (!strcmp(str, "Master")) |
| strcpy(str, "Mix"); |
| if (!strcmp(str, "Master Mono")) |
| strcpy(str, "Mix Mono"); |
| slot.capture_item = 0; |
| if (!strcmp(uinfo->value.enumerated.name, str)) { |
| slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; |
| } else { |
| for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { |
| uinfo->value.enumerated.item = slot.capture_item; |
| if (kctl->info(kctl, uinfo)) { |
| up_read(&mixer->card->controls_rwsem); |
| return 0; |
| } |
| if (!strcmp(uinfo->value.enumerated.name, str)) { |
| slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; |
| break; |
| } |
| } |
| } |
| kfree(uinfo); |
| } |
| up_read(&mixer->card->controls_rwsem); |
| if (slot.present != 0) { |
| pslot = kmalloc(sizeof(slot), GFP_KERNEL); |
| if (! pslot) |
| return -ENOMEM; |
| *pslot = slot; |
| pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; |
| pslot->assigned = ptr; |
| pslot->allocated = ptr_allocated; |
| rslot = &mixer->slots[ptr->oss_id]; |
| mixer_slot_clear(rslot); |
| rslot->stereo = slot.channels > 1 ? 1 : 0; |
| rslot->get_volume = snd_mixer_oss_get_volume1; |
| rslot->put_volume = snd_mixer_oss_put_volume1; |
| /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ |
| if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { |
| rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; |
| rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; |
| } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { |
| rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; |
| rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; |
| } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { |
| mixer->mask_recsrc |= 1 << ptr->oss_id; |
| } |
| rslot->private_data = pslot; |
| rslot->private_free = snd_mixer_oss_slot_free; |
| return 1; |
| } |
| return 0; |
| } |
| |
| #ifdef CONFIG_PROC_FS |
| /* |
| */ |
| #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name |
| static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { |
| MIXER_VOL(VOLUME), |
| MIXER_VOL(BASS), |
| MIXER_VOL(TREBLE), |
| MIXER_VOL(SYNTH), |
| MIXER_VOL(PCM), |
| MIXER_VOL(SPEAKER), |
| MIXER_VOL(LINE), |
| MIXER_VOL(MIC), |
| MIXER_VOL(CD), |
| MIXER_VOL(IMIX), |
| MIXER_VOL(ALTPCM), |
| MIXER_VOL(RECLEV), |
| MIXER_VOL(IGAIN), |
| MIXER_VOL(OGAIN), |
| MIXER_VOL(LINE1), |
| MIXER_VOL(LINE2), |
| MIXER_VOL(LINE3), |
| MIXER_VOL(DIGITAL1), |
| MIXER_VOL(DIGITAL2), |
| MIXER_VOL(DIGITAL3), |
| MIXER_VOL(PHONEIN), |
| MIXER_VOL(PHONEOUT), |
| MIXER_VOL(VIDEO), |
| MIXER_VOL(RADIO), |
| MIXER_VOL(MONITOR), |
| }; |
| |
| /* |
| * /proc interface |
| */ |
| |
| static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, |
| struct snd_info_buffer *buffer) |
| { |
| struct snd_mixer_oss *mixer = entry->private_data; |
| int i; |
| |
| mutex_lock(&mixer->reg_mutex); |
| for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { |
| struct slot *p; |
| |
| if (! oss_mixer_names[i]) |
| continue; |
| p = (struct slot *)mixer->slots[i].private_data; |
| snd_iprintf(buffer, "%s ", oss_mixer_names[i]); |
| if (p && p->assigned) |
| snd_iprintf(buffer, "\"%s\" %d\n", |
| p->assigned->name, |
| p->assigned->index); |
| else |
| snd_iprintf(buffer, "\"\" 0\n"); |
| } |
| mutex_unlock(&mixer->reg_mutex); |
| } |
| |
| static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, |
| struct snd_info_buffer *buffer) |
| { |
| struct snd_mixer_oss *mixer = entry->private_data; |
| char line[128], str[32], idxstr[16], *cptr; |
| int ch, idx; |
| struct snd_mixer_oss_assign_table *tbl; |
| struct slot *slot; |
| |
| while (!snd_info_get_line(buffer, line, sizeof(line))) { |
| cptr = snd_info_get_str(str, line, sizeof(str)); |
| for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) |
| if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) |
| break; |
| if (ch >= SNDRV_OSS_MAX_MIXERS) { |
| snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); |
| continue; |
| } |
| cptr = snd_info_get_str(str, cptr, sizeof(str)); |
| if (! *str) { |
| /* remove the entry */ |
| mutex_lock(&mixer->reg_mutex); |
| mixer_slot_clear(&mixer->slots[ch]); |
| mutex_unlock(&mixer->reg_mutex); |
| continue; |
| } |
| snd_info_get_str(idxstr, cptr, sizeof(idxstr)); |
| idx = simple_strtoul(idxstr, NULL, 10); |
| if (idx >= 0x4000) { /* too big */ |
| snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); |
| continue; |
| } |
| mutex_lock(&mixer->reg_mutex); |
| slot = (struct slot *)mixer->slots[ch].private_data; |
| if (slot && slot->assigned && |
| slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) |
| /* not changed */ |
| goto __unlock; |
| tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); |
| if (! tbl) { |
| snd_printk(KERN_ERR "mixer_oss: no memory\n"); |
| goto __unlock; |
| } |
| tbl->oss_id = ch; |
| tbl->name = kstrdup(str, GFP_KERNEL); |
| if (! tbl->name) { |
| kfree(tbl); |
| goto __unlock; |
| } |
| tbl->index = idx; |
| if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { |
| kfree(tbl->name); |
| kfree(tbl); |
| } |
| __unlock: |
| mutex_unlock(&mixer->reg_mutex); |
| } |
| } |
| |
| static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) |
| { |
| struct snd_info_entry *entry; |
| |
| entry = snd_info_create_card_entry(mixer->card, "oss_mixer", |
| mixer->card->proc_root); |
| if (! entry) |
| return; |
| entry->content = SNDRV_INFO_CONTENT_TEXT; |
| entry->mode = S_IFREG | S_IRUGO | S_IWUSR; |
| entry->c.text.read = snd_mixer_oss_proc_read; |
| entry->c.text.write = snd_mixer_oss_proc_write; |
| entry->private_data = mixer; |
| if (snd_info_register(entry) < 0) { |
| snd_info_free_entry(entry); |
| entry = NULL; |
| } |
| mixer->proc_entry = entry; |
| } |
| |
| static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) |
| { |
| snd_info_free_entry(mixer->proc_entry); |
| mixer->proc_entry = NULL; |
| } |
| #else /* !CONFIG_PROC_FS */ |
| #define snd_mixer_oss_proc_init(mix) |
| #define snd_mixer_oss_proc_done(mix) |
| #endif /* CONFIG_PROC_FS */ |
| |
| static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) |
| { |
| static struct snd_mixer_oss_assign_table table[] = { |
| { SOUND_MIXER_VOLUME, "Master", 0 }, |
| { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ |
| { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, |
| { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, |
| { SOUND_MIXER_SYNTH, "Synth", 0 }, |
| { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ |
| { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ |
| { SOUND_MIXER_PCM, "PCM", 0 }, |
| { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, |
| { SOUND_MIXER_LINE, "Line", 0 }, |
| { SOUND_MIXER_MIC, "Mic", 0 }, |
| { SOUND_MIXER_CD, "CD", 0 }, |
| { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, |
| { SOUND_MIXER_ALTPCM, "PCM", 1 }, |
| { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ |
| { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ |
| { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, |
| { SOUND_MIXER_IGAIN, "Capture", 0 }, |
| { SOUND_MIXER_OGAIN, "Playback", 0 }, |
| { SOUND_MIXER_LINE1, "Aux", 0 }, |
| { SOUND_MIXER_LINE2, "Aux", 1 }, |
| { SOUND_MIXER_LINE3, "Aux", 2 }, |
| { SOUND_MIXER_DIGITAL1, "Digital", 0 }, |
| { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ |
| { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ |
| { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ |
| { SOUND_MIXER_DIGITAL2, "Digital", 1 }, |
| { SOUND_MIXER_DIGITAL3, "Digital", 2 }, |
| { SOUND_MIXER_PHONEIN, "Phone", 0 }, |
| { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, |
| { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/ |
| { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/ |
| { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ |
| { SOUND_MIXER_VIDEO, "Video", 0 }, |
| { SOUND_MIXER_RADIO, "Radio", 0 }, |
| { SOUND_MIXER_MONITOR, "Monitor", 0 } |
| }; |
| unsigned int idx; |
| |
| for (idx = 0; idx < ARRAY_SIZE(table); idx++) |
| snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); |
| if (mixer->mask_recsrc) { |
| mixer->get_recsrc = snd_mixer_oss_get_recsrc2; |
| mixer->put_recsrc = snd_mixer_oss_put_recsrc2; |
| } |
| } |
| |
| /* |
| * |
| */ |
| |
| static int snd_mixer_oss_free1(void *private) |
| { |
| struct snd_mixer_oss *mixer = private; |
| struct snd_card *card; |
| int idx; |
| |
| snd_assert(mixer != NULL, return -ENXIO); |
| card = mixer->card; |
| snd_assert(mixer == card->mixer_oss, return -ENXIO); |
| card->mixer_oss = NULL; |
| for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { |
| struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; |
| if (chn->private_free) |
| chn->private_free(chn); |
| } |
| kfree(mixer); |
| return 0; |
| } |
| |
| static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) |
| { |
| struct snd_mixer_oss *mixer; |
| |
| if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { |
| char name[128]; |
| int idx, err; |
| |
| mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); |
| if (mixer == NULL) |
| return -ENOMEM; |
| mutex_init(&mixer->reg_mutex); |
| sprintf(name, "mixer%i%i", card->number, 0); |
| if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, |
| card, 0, |
| &snd_mixer_oss_f_ops, card, |
| name)) < 0) { |
| snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", |
| card->number, 0); |
| kfree(mixer); |
| return err; |
| } |
| mixer->oss_dev_alloc = 1; |
| mixer->card = card; |
| if (*card->mixername) |
| strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); |
| else |
| strlcpy(mixer->name, name, sizeof(mixer->name)); |
| #ifdef SNDRV_OSS_INFO_DEV_MIXERS |
| snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, |
| card->number, |
| mixer->name); |
| #endif |
| for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) |
| mixer->slots[idx].number = idx; |
| card->mixer_oss = mixer; |
| snd_mixer_oss_build(mixer); |
| snd_mixer_oss_proc_init(mixer); |
| } else { |
| mixer = card->mixer_oss; |
| if (mixer == NULL) |
| return 0; |
| if (mixer->oss_dev_alloc) { |
| #ifdef SNDRV_OSS_INFO_DEV_MIXERS |
| snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); |
| #endif |
| snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); |
| mixer->oss_dev_alloc = 0; |
| } |
| if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) |
| return 0; |
| snd_mixer_oss_proc_done(mixer); |
| return snd_mixer_oss_free1(mixer); |
| } |
| return 0; |
| } |
| |
| static int __init alsa_mixer_oss_init(void) |
| { |
| int idx; |
| |
| snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; |
| for (idx = 0; idx < SNDRV_CARDS; idx++) { |
| if (snd_cards[idx]) |
| snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); |
| } |
| return 0; |
| } |
| |
| static void __exit alsa_mixer_oss_exit(void) |
| { |
| int idx; |
| |
| snd_mixer_oss_notify_callback = NULL; |
| for (idx = 0; idx < SNDRV_CARDS; idx++) { |
| if (snd_cards[idx]) |
| snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE); |
| } |
| } |
| |
| module_init(alsa_mixer_oss_init) |
| module_exit(alsa_mixer_oss_exit) |
| |
| EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); |
