Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * OSS emulation layer for the mixer interface |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | */ |
| 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <linux/slab.h> |
| 24 | #include <linux/time.h> |
Paulo Marques | 543537b | 2005-06-23 00:09:02 -0700 | [diff] [blame] | 25 | #include <linux/string.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <sound/core.h> |
| 27 | #include <sound/minors.h> |
| 28 | #include <sound/control.h> |
| 29 | #include <sound/info.h> |
| 30 | #include <sound/mixer_oss.h> |
| 31 | #include <linux/soundcard.h> |
| 32 | |
| 33 | #define OSS_ALSAEMULVER _SIOR ('M', 249, int) |
| 34 | |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 35 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); |
| 37 | MODULE_LICENSE("GPL"); |
| 38 | MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); |
| 39 | |
| 40 | static int snd_mixer_oss_open(struct inode *inode, struct file *file) |
| 41 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 42 | struct snd_card *card; |
| 43 | struct snd_mixer_oss_file *fmixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | int err; |
| 45 | |
Clemens Ladisch | f87135f | 2005-11-20 14:06:59 +0100 | [diff] [blame] | 46 | card = snd_lookup_oss_minor_data(iminor(inode), |
| 47 | SNDRV_OSS_DEVICE_TYPE_MIXER); |
| 48 | if (card == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | return -ENODEV; |
| 50 | if (card->mixer_oss == NULL) |
| 51 | return -ENODEV; |
| 52 | err = snd_card_file_add(card, file); |
| 53 | if (err < 0) |
| 54 | return err; |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 55 | fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | if (fmixer == NULL) { |
| 57 | snd_card_file_remove(card, file); |
| 58 | return -ENOMEM; |
| 59 | } |
| 60 | fmixer->card = card; |
| 61 | fmixer->mixer = card->mixer_oss; |
| 62 | file->private_data = fmixer; |
| 63 | if (!try_module_get(card->module)) { |
| 64 | kfree(fmixer); |
| 65 | snd_card_file_remove(card, file); |
| 66 | return -EFAULT; |
| 67 | } |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | static int snd_mixer_oss_release(struct inode *inode, struct file *file) |
| 72 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 73 | struct snd_mixer_oss_file *fmixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | |
| 75 | if (file->private_data) { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 76 | fmixer = (struct snd_mixer_oss_file *) file->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | module_put(fmixer->card->module); |
| 78 | snd_card_file_remove(fmixer->card, file); |
| 79 | kfree(fmixer); |
| 80 | } |
| 81 | return 0; |
| 82 | } |
| 83 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 84 | static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | mixer_info __user *_info) |
| 86 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 87 | struct snd_card *card = fmixer->card; |
| 88 | struct snd_mixer_oss *mixer = fmixer->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | struct mixer_info info; |
| 90 | |
| 91 | memset(&info, 0, sizeof(info)); |
| 92 | strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); |
| 93 | strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); |
| 94 | info.modify_counter = card->mixer_oss_change_count; |
| 95 | if (copy_to_user(_info, &info, sizeof(info))) |
| 96 | return -EFAULT; |
| 97 | return 0; |
| 98 | } |
| 99 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 100 | static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | _old_mixer_info __user *_info) |
| 102 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 103 | struct snd_card *card = fmixer->card; |
| 104 | struct snd_mixer_oss *mixer = fmixer->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | _old_mixer_info info; |
| 106 | |
| 107 | memset(&info, 0, sizeof(info)); |
| 108 | strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); |
| 109 | strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); |
| 110 | if (copy_to_user(_info, &info, sizeof(info))) |
| 111 | return -EFAULT; |
| 112 | return 0; |
| 113 | } |
| 114 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 115 | static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 117 | struct snd_mixer_oss *mixer = fmixer->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | int result = 0; |
| 119 | |
| 120 | if (mixer == NULL) |
| 121 | return -EIO; |
| 122 | if (mixer->get_recsrc && mixer->put_recsrc) |
| 123 | result |= SOUND_CAP_EXCL_INPUT; |
| 124 | return result; |
| 125 | } |
| 126 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 127 | static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 129 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 130 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | int result = 0, chn; |
| 132 | |
| 133 | if (mixer == NULL) |
| 134 | return -EIO; |
| 135 | for (chn = 0; chn < 31; chn++) { |
| 136 | pslot = &mixer->slots[chn]; |
| 137 | if (pslot->put_volume || pslot->put_recsrc) |
| 138 | result |= 1 << chn; |
| 139 | } |
| 140 | return result; |
| 141 | } |
| 142 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 143 | static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 145 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 146 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | int result = 0, chn; |
| 148 | |
| 149 | if (mixer == NULL) |
| 150 | return -EIO; |
| 151 | for (chn = 0; chn < 31; chn++) { |
| 152 | pslot = &mixer->slots[chn]; |
| 153 | if (pslot->put_volume && pslot->stereo) |
| 154 | result |= 1 << chn; |
| 155 | } |
| 156 | return result; |
| 157 | } |
| 158 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 159 | static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 161 | struct snd_mixer_oss *mixer = fmixer->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | int result = 0; |
| 163 | |
| 164 | if (mixer == NULL) |
| 165 | return -EIO; |
| 166 | if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ |
| 167 | result = mixer->mask_recsrc; |
| 168 | } else { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 169 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | int chn; |
| 171 | for (chn = 0; chn < 31; chn++) { |
| 172 | pslot = &mixer->slots[chn]; |
| 173 | if (pslot->put_recsrc) |
| 174 | result |= 1 << chn; |
| 175 | } |
| 176 | } |
| 177 | return result; |
| 178 | } |
| 179 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 180 | static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 182 | struct snd_mixer_oss *mixer = fmixer->mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | int result = 0; |
| 184 | |
| 185 | if (mixer == NULL) |
| 186 | return -EIO; |
| 187 | if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ |
| 188 | int err; |
| 189 | if ((err = mixer->get_recsrc(fmixer, &result)) < 0) |
| 190 | return err; |
| 191 | result = 1 << result; |
| 192 | } else { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 193 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | int chn; |
| 195 | for (chn = 0; chn < 31; chn++) { |
| 196 | pslot = &mixer->slots[chn]; |
| 197 | if (pslot->get_recsrc) { |
| 198 | int active = 0; |
| 199 | pslot->get_recsrc(fmixer, pslot, &active); |
| 200 | if (active) |
| 201 | result |= 1 << chn; |
| 202 | } |
| 203 | } |
| 204 | } |
| 205 | return mixer->oss_recsrc = result; |
| 206 | } |
| 207 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 208 | static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 210 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 211 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | int chn, active; |
| 213 | int result = 0; |
| 214 | |
| 215 | if (mixer == NULL) |
| 216 | return -EIO; |
| 217 | if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */ |
| 218 | if (recsrc & ~mixer->oss_recsrc) |
| 219 | recsrc &= ~mixer->oss_recsrc; |
| 220 | mixer->put_recsrc(fmixer, ffz(~recsrc)); |
| 221 | mixer->get_recsrc(fmixer, &result); |
| 222 | result = 1 << result; |
| 223 | } |
| 224 | for (chn = 0; chn < 31; chn++) { |
| 225 | pslot = &mixer->slots[chn]; |
| 226 | if (pslot->put_recsrc) { |
| 227 | active = (recsrc & (1 << chn)) ? 1 : 0; |
| 228 | pslot->put_recsrc(fmixer, pslot, active); |
| 229 | } |
| 230 | } |
| 231 | if (! result) { |
| 232 | for (chn = 0; chn < 31; chn++) { |
| 233 | pslot = &mixer->slots[chn]; |
| 234 | if (pslot->get_recsrc) { |
| 235 | active = 0; |
| 236 | pslot->get_recsrc(fmixer, pslot, &active); |
| 237 | if (active) |
| 238 | result |= 1 << chn; |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | return result; |
| 243 | } |
| 244 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 245 | static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 247 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 248 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | int result = 0, left, right; |
| 250 | |
| 251 | if (mixer == NULL || slot > 30) |
| 252 | return -EIO; |
| 253 | pslot = &mixer->slots[slot]; |
| 254 | left = pslot->volume[0]; |
| 255 | right = pslot->volume[1]; |
| 256 | if (pslot->get_volume) |
| 257 | result = pslot->get_volume(fmixer, pslot, &left, &right); |
| 258 | if (!pslot->stereo) |
| 259 | right = left; |
| 260 | snd_assert(left >= 0 && left <= 100, return -EIO); |
| 261 | snd_assert(right >= 0 && right <= 100, return -EIO); |
| 262 | if (result >= 0) { |
| 263 | pslot->volume[0] = left; |
| 264 | pslot->volume[1] = right; |
| 265 | result = (left & 0xff) | ((right & 0xff) << 8); |
| 266 | } |
| 267 | return result; |
| 268 | } |
| 269 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 270 | static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | int slot, int volume) |
| 272 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 273 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 274 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff; |
| 276 | |
| 277 | if (mixer == NULL || slot > 30) |
| 278 | return -EIO; |
| 279 | pslot = &mixer->slots[slot]; |
| 280 | if (left > 100) |
| 281 | left = 100; |
| 282 | if (right > 100) |
| 283 | right = 100; |
| 284 | if (!pslot->stereo) |
| 285 | right = left; |
| 286 | if (pslot->put_volume) |
| 287 | result = pslot->put_volume(fmixer, pslot, left, right); |
| 288 | if (result < 0) |
| 289 | return result; |
| 290 | pslot->volume[0] = left; |
| 291 | pslot->volume[1] = right; |
| 292 | return (left & 0xff) | ((right & 0xff) << 8); |
| 293 | } |
| 294 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 295 | static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | { |
| 297 | void __user *argp = (void __user *)arg; |
| 298 | int __user *p = argp; |
| 299 | int tmp; |
| 300 | |
| 301 | snd_assert(fmixer != NULL, return -ENXIO); |
| 302 | if (((cmd >> 8) & 0xff) == 'M') { |
| 303 | switch (cmd) { |
| 304 | case SOUND_MIXER_INFO: |
| 305 | return snd_mixer_oss_info(fmixer, argp); |
| 306 | case SOUND_OLD_MIXER_INFO: |
| 307 | return snd_mixer_oss_info_obsolete(fmixer, argp); |
| 308 | case SOUND_MIXER_WRITE_RECSRC: |
| 309 | if (get_user(tmp, p)) |
| 310 | return -EFAULT; |
| 311 | tmp = snd_mixer_oss_set_recsrc(fmixer, tmp); |
| 312 | if (tmp < 0) |
| 313 | return tmp; |
| 314 | return put_user(tmp, p); |
| 315 | case OSS_GETVERSION: |
| 316 | return put_user(SNDRV_OSS_VERSION, p); |
| 317 | case OSS_ALSAEMULVER: |
| 318 | return put_user(1, p); |
| 319 | case SOUND_MIXER_READ_DEVMASK: |
| 320 | tmp = snd_mixer_oss_devmask(fmixer); |
| 321 | if (tmp < 0) |
| 322 | return tmp; |
| 323 | return put_user(tmp, p); |
| 324 | case SOUND_MIXER_READ_STEREODEVS: |
| 325 | tmp = snd_mixer_oss_stereodevs(fmixer); |
| 326 | if (tmp < 0) |
| 327 | return tmp; |
| 328 | return put_user(tmp, p); |
| 329 | case SOUND_MIXER_READ_RECMASK: |
| 330 | tmp = snd_mixer_oss_recmask(fmixer); |
| 331 | if (tmp < 0) |
| 332 | return tmp; |
| 333 | return put_user(tmp, p); |
| 334 | case SOUND_MIXER_READ_CAPS: |
| 335 | tmp = snd_mixer_oss_caps(fmixer); |
| 336 | if (tmp < 0) |
| 337 | return tmp; |
| 338 | return put_user(tmp, p); |
| 339 | case SOUND_MIXER_READ_RECSRC: |
| 340 | tmp = snd_mixer_oss_get_recsrc(fmixer); |
| 341 | if (tmp < 0) |
| 342 | return tmp; |
| 343 | return put_user(tmp, p); |
| 344 | } |
| 345 | } |
| 346 | if (cmd & SIOC_IN) { |
| 347 | if (get_user(tmp, p)) |
| 348 | return -EFAULT; |
| 349 | tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp); |
| 350 | if (tmp < 0) |
| 351 | return tmp; |
| 352 | return put_user(tmp, p); |
| 353 | } else if (cmd & SIOC_OUT) { |
| 354 | tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff); |
| 355 | if (tmp < 0) |
| 356 | return tmp; |
| 357 | return put_user(tmp, p); |
| 358 | } |
| 359 | return -ENXIO; |
| 360 | } |
| 361 | |
| 362 | static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 363 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 364 | return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | } |
| 366 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 367 | int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 369 | struct snd_mixer_oss_file fmixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | |
| 371 | snd_assert(card != NULL, return -ENXIO); |
| 372 | if (card->mixer_oss == NULL) |
| 373 | return -ENXIO; |
| 374 | memset(&fmixer, 0, sizeof(fmixer)); |
| 375 | fmixer.card = card; |
| 376 | fmixer.mixer = card->mixer_oss; |
| 377 | return snd_mixer_oss_ioctl1(&fmixer, cmd, arg); |
| 378 | } |
| 379 | |
| 380 | #ifdef CONFIG_COMPAT |
| 381 | /* all compatible */ |
| 382 | #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl |
| 383 | #else |
| 384 | #define snd_mixer_oss_ioctl_compat NULL |
| 385 | #endif |
| 386 | |
| 387 | /* |
| 388 | * REGISTRATION PART |
| 389 | */ |
| 390 | |
Arjan van de Ven | 9c2e08c | 2007-02-12 00:55:37 -0800 | [diff] [blame] | 391 | static const struct file_operations snd_mixer_oss_f_ops = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | { |
| 393 | .owner = THIS_MODULE, |
| 394 | .open = snd_mixer_oss_open, |
| 395 | .release = snd_mixer_oss_release, |
| 396 | .unlocked_ioctl = snd_mixer_oss_ioctl, |
| 397 | .compat_ioctl = snd_mixer_oss_ioctl_compat, |
| 398 | }; |
| 399 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | /* |
| 401 | * utilities |
| 402 | */ |
| 403 | |
| 404 | static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax) |
| 405 | { |
| 406 | long orange = omax - omin, nrange = nmax - nmin; |
| 407 | |
| 408 | if (orange == 0) |
| 409 | return 0; |
| 410 | return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin; |
| 411 | } |
| 412 | |
| 413 | /* convert from alsa native to oss values (0-100) */ |
| 414 | static long snd_mixer_oss_conv1(long val, long min, long max, int *old) |
| 415 | { |
| 416 | if (val == snd_mixer_oss_conv(*old, 0, 100, min, max)) |
| 417 | return *old; |
| 418 | return snd_mixer_oss_conv(val, min, max, 0, 100); |
| 419 | } |
| 420 | |
| 421 | /* convert from oss to alsa native values */ |
| 422 | static long snd_mixer_oss_conv2(long val, long min, long max) |
| 423 | { |
| 424 | return snd_mixer_oss_conv(val, 0, 100, min, max); |
| 425 | } |
| 426 | |
| 427 | #if 0 |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 428 | static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 430 | struct snd_mixer_oss *mixer = card->mixer_oss; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | if (mixer) |
| 432 | mixer->mask_recsrc |= 1 << slot; |
| 433 | } |
| 434 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 435 | static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 437 | struct snd_mixer_oss *mixer = card->mixer_oss; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | if (mixer && (mixer->mask_recsrc & (1 << slot))) |
| 439 | return 1; |
| 440 | return 0; |
| 441 | } |
| 442 | #endif |
| 443 | |
| 444 | #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 |
| 445 | |
| 446 | #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 |
| 447 | #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 |
| 448 | #define SNDRV_MIXER_OSS_ITEM_GROUTE 2 |
| 449 | #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 |
| 450 | #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 |
| 451 | #define SNDRV_MIXER_OSS_ITEM_PROUTE 5 |
| 452 | #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 |
| 453 | #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 |
| 454 | #define SNDRV_MIXER_OSS_ITEM_CROUTE 8 |
| 455 | #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 |
| 456 | #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 |
| 457 | |
| 458 | #define SNDRV_MIXER_OSS_ITEM_COUNT 11 |
| 459 | |
| 460 | #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) |
| 461 | #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) |
| 462 | #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) |
| 463 | #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) |
| 464 | #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) |
| 465 | #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) |
| 466 | #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) |
| 467 | #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) |
| 468 | #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) |
| 469 | #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) |
| 470 | #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) |
| 471 | |
| 472 | struct slot { |
| 473 | unsigned int signature; |
| 474 | unsigned int present; |
| 475 | unsigned int channels; |
| 476 | unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; |
| 477 | unsigned int capture_item; |
| 478 | struct snd_mixer_oss_assign_table *assigned; |
| 479 | unsigned int allocated: 1; |
| 480 | }; |
| 481 | |
| 482 | #define ID_UNKNOWN ((unsigned int)-1) |
| 483 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 484 | static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 486 | struct snd_card *card = mixer->card; |
| 487 | struct snd_ctl_elem_id id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | |
| 489 | memset(&id, 0, sizeof(id)); |
| 490 | id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; |
| 491 | strcpy(id.name, name); |
| 492 | id.index = index; |
| 493 | return snd_ctl_find_id(card, &id); |
| 494 | } |
| 495 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 496 | static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, |
| 497 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | unsigned int numid, |
| 499 | int *left, int *right) |
| 500 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 501 | struct snd_ctl_elem_info *uinfo; |
| 502 | struct snd_ctl_elem_value *uctl; |
| 503 | struct snd_kcontrol *kctl; |
| 504 | struct snd_card *card = fmixer->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | |
| 506 | if (numid == ID_UNKNOWN) |
| 507 | return; |
| 508 | down_read(&card->controls_rwsem); |
| 509 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { |
| 510 | up_read(&card->controls_rwsem); |
| 511 | return; |
| 512 | } |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 513 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| 514 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | if (uinfo == NULL || uctl == NULL) |
| 516 | goto __unalloc; |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 517 | if (kctl->info(kctl, uinfo)) |
| 518 | goto __unalloc; |
| 519 | if (kctl->get(kctl, uctl)) |
| 520 | goto __unalloc; |
| 521 | if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && |
| 522 | uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) |
| 523 | goto __unalloc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); |
| 525 | if (uinfo->count > 1) |
| 526 | *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); |
| 527 | __unalloc: |
| 528 | up_read(&card->controls_rwsem); |
| 529 | kfree(uctl); |
| 530 | kfree(uinfo); |
| 531 | } |
| 532 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 533 | static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, |
| 534 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | unsigned int numid, |
| 536 | int *left, int *right, |
| 537 | int route) |
| 538 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 539 | struct snd_ctl_elem_info *uinfo; |
| 540 | struct snd_ctl_elem_value *uctl; |
| 541 | struct snd_kcontrol *kctl; |
| 542 | struct snd_card *card = fmixer->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
| 544 | if (numid == ID_UNKNOWN) |
| 545 | return; |
| 546 | down_read(&card->controls_rwsem); |
| 547 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { |
| 548 | up_read(&card->controls_rwsem); |
| 549 | return; |
| 550 | } |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 551 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| 552 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | if (uinfo == NULL || uctl == NULL) |
| 554 | goto __unalloc; |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 555 | if (kctl->info(kctl, uinfo)) |
| 556 | goto __unalloc; |
| 557 | if (kctl->get(kctl, uctl)) |
| 558 | goto __unalloc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | if (!uctl->value.integer.value[0]) { |
| 560 | *left = 0; |
| 561 | if (uinfo->count == 1) |
| 562 | *right = 0; |
| 563 | } |
| 564 | if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) |
| 565 | *right = 0; |
| 566 | __unalloc: |
| 567 | up_read(&card->controls_rwsem); |
| 568 | kfree(uctl); |
| 569 | kfree(uinfo); |
| 570 | } |
| 571 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 572 | static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, |
| 573 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | int *left, int *right) |
| 575 | { |
| 576 | struct slot *slot = (struct slot *)pslot->private_data; |
| 577 | |
| 578 | *left = *right = 100; |
| 579 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { |
| 580 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); |
| 581 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { |
| 582 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); |
| 583 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { |
| 584 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); |
| 585 | } |
| 586 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { |
| 587 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); |
| 588 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { |
| 589 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); |
| 590 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { |
| 591 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); |
| 592 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { |
| 593 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); |
| 594 | } |
| 595 | return 0; |
| 596 | } |
| 597 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 598 | static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, |
| 599 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | unsigned int numid, |
| 601 | int left, int right) |
| 602 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 603 | struct snd_ctl_elem_info *uinfo; |
| 604 | struct snd_ctl_elem_value *uctl; |
| 605 | struct snd_kcontrol *kctl; |
| 606 | struct snd_card *card = fmixer->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | int res; |
| 608 | |
| 609 | if (numid == ID_UNKNOWN) |
| 610 | return; |
| 611 | down_read(&card->controls_rwsem); |
| 612 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) |
| 613 | return; |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 614 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| 615 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | if (uinfo == NULL || uctl == NULL) |
| 617 | goto __unalloc; |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 618 | if (kctl->info(kctl, uinfo)) |
| 619 | goto __unalloc; |
| 620 | if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && |
| 621 | uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) |
| 622 | goto __unalloc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); |
| 624 | if (uinfo->count > 1) |
| 625 | uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 626 | if ((res = kctl->put(kctl, uctl)) < 0) |
| 627 | goto __unalloc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | if (res > 0) |
| 629 | snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); |
| 630 | __unalloc: |
| 631 | up_read(&card->controls_rwsem); |
| 632 | kfree(uctl); |
| 633 | kfree(uinfo); |
| 634 | } |
| 635 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 636 | static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, |
| 637 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | unsigned int numid, |
| 639 | int left, int right, |
| 640 | int route) |
| 641 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 642 | struct snd_ctl_elem_info *uinfo; |
| 643 | struct snd_ctl_elem_value *uctl; |
| 644 | struct snd_kcontrol *kctl; |
| 645 | struct snd_card *card = fmixer->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | int res; |
| 647 | |
| 648 | if (numid == ID_UNKNOWN) |
| 649 | return; |
| 650 | down_read(&card->controls_rwsem); |
| 651 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { |
| 652 | up_read(&fmixer->card->controls_rwsem); |
| 653 | return; |
| 654 | } |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 655 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| 656 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | if (uinfo == NULL || uctl == NULL) |
| 658 | goto __unalloc; |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 659 | if (kctl->info(kctl, uinfo)) |
| 660 | goto __unalloc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | if (uinfo->count > 1) { |
| 662 | uctl->value.integer.value[0] = left > 0 ? 1 : 0; |
| 663 | uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; |
| 664 | if (route) { |
| 665 | uctl->value.integer.value[1] = |
| 666 | uctl->value.integer.value[2] = 0; |
| 667 | } |
| 668 | } else { |
| 669 | uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; |
| 670 | } |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 671 | if ((res = kctl->put(kctl, uctl)) < 0) |
| 672 | goto __unalloc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | if (res > 0) |
| 674 | snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); |
| 675 | __unalloc: |
| 676 | up_read(&card->controls_rwsem); |
| 677 | kfree(uctl); |
| 678 | kfree(uinfo); |
| 679 | } |
| 680 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 681 | static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, |
| 682 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | int left, int right) |
| 684 | { |
| 685 | struct slot *slot = (struct slot *)pslot->private_data; |
| 686 | |
| 687 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { |
| 688 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); |
| 689 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) |
| 690 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); |
| 691 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { |
| 692 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); |
| 693 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { |
| 694 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); |
| 695 | } |
| 696 | if (left || right) { |
| 697 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) |
| 698 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); |
| 699 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) |
| 700 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); |
| 701 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) |
| 702 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); |
| 703 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) |
| 704 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); |
| 705 | } else { |
| 706 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { |
| 707 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); |
| 708 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { |
| 709 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); |
| 710 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { |
| 711 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); |
| 712 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { |
| 713 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); |
| 714 | } |
| 715 | } |
| 716 | return 0; |
| 717 | } |
| 718 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 719 | static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
| 720 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | int *active) |
| 722 | { |
| 723 | struct slot *slot = (struct slot *)pslot->private_data; |
| 724 | int left, right; |
| 725 | |
| 726 | left = right = 1; |
| 727 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); |
| 728 | *active = (left || right) ? 1 : 0; |
| 729 | return 0; |
| 730 | } |
| 731 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 732 | static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
| 733 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | int *active) |
| 735 | { |
| 736 | struct slot *slot = (struct slot *)pslot->private_data; |
| 737 | int left, right; |
| 738 | |
| 739 | left = right = 1; |
| 740 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); |
| 741 | *active = (left || right) ? 1 : 0; |
| 742 | return 0; |
| 743 | } |
| 744 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 745 | static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
| 746 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | int active) |
| 748 | { |
| 749 | struct slot *slot = (struct slot *)pslot->private_data; |
| 750 | |
| 751 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); |
| 752 | return 0; |
| 753 | } |
| 754 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 755 | static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
| 756 | struct snd_mixer_oss_slot *pslot, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | int active) |
| 758 | { |
| 759 | struct slot *slot = (struct slot *)pslot->private_data; |
| 760 | |
| 761 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); |
| 762 | return 0; |
| 763 | } |
| 764 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 765 | static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 767 | struct snd_card *card = fmixer->card; |
| 768 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 769 | struct snd_kcontrol *kctl; |
| 770 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | struct slot *slot; |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 772 | struct snd_ctl_elem_info *uinfo; |
| 773 | struct snd_ctl_elem_value *uctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | int err, idx; |
| 775 | |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 776 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| 777 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | if (uinfo == NULL || uctl == NULL) { |
| 779 | err = -ENOMEM; |
| 780 | goto __unlock; |
| 781 | } |
| 782 | down_read(&card->controls_rwsem); |
| 783 | kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 784 | if (! kctl) { |
| 785 | err = -ENOENT; |
| 786 | goto __unlock; |
| 787 | } |
| 788 | if ((err = kctl->info(kctl, uinfo)) < 0) |
| 789 | goto __unlock; |
| 790 | if ((err = kctl->get(kctl, uctl)) < 0) |
| 791 | goto __unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | for (idx = 0; idx < 32; idx++) { |
| 793 | if (!(mixer->mask_recsrc & (1 << idx))) |
| 794 | continue; |
| 795 | pslot = &mixer->slots[idx]; |
| 796 | slot = (struct slot *)pslot->private_data; |
| 797 | if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) |
| 798 | continue; |
| 799 | if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) |
| 800 | continue; |
| 801 | if (slot->capture_item == uctl->value.enumerated.item[0]) { |
| 802 | *active_index = idx; |
| 803 | break; |
| 804 | } |
| 805 | } |
| 806 | err = 0; |
| 807 | __unlock: |
| 808 | up_read(&card->controls_rwsem); |
| 809 | kfree(uctl); |
| 810 | kfree(uinfo); |
| 811 | return err; |
| 812 | } |
| 813 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 814 | static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 816 | struct snd_card *card = fmixer->card; |
| 817 | struct snd_mixer_oss *mixer = fmixer->mixer; |
| 818 | struct snd_kcontrol *kctl; |
| 819 | struct snd_mixer_oss_slot *pslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | struct slot *slot = NULL; |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 821 | struct snd_ctl_elem_info *uinfo; |
| 822 | struct snd_ctl_elem_value *uctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | int err; |
| 824 | unsigned int idx; |
| 825 | |
Takashi Iwai | ca2c096 | 2005-09-09 14:20:23 +0200 | [diff] [blame] | 826 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
| 827 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | if (uinfo == NULL || uctl == NULL) { |
| 829 | err = -ENOMEM; |
| 830 | goto __unlock; |
| 831 | } |
| 832 | down_read(&card->controls_rwsem); |
| 833 | kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 834 | if (! kctl) { |
| 835 | err = -ENOENT; |
| 836 | goto __unlock; |
| 837 | } |
| 838 | if ((err = kctl->info(kctl, uinfo)) < 0) |
| 839 | goto __unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | for (idx = 0; idx < 32; idx++) { |
| 841 | if (!(mixer->mask_recsrc & (1 << idx))) |
| 842 | continue; |
| 843 | pslot = &mixer->slots[idx]; |
| 844 | slot = (struct slot *)pslot->private_data; |
| 845 | if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) |
| 846 | continue; |
| 847 | if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) |
| 848 | continue; |
| 849 | if (idx == active_index) |
| 850 | break; |
| 851 | slot = NULL; |
| 852 | } |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 853 | if (! slot) |
| 854 | goto __unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | for (idx = 0; idx < uinfo->count; idx++) |
| 856 | uctl->value.enumerated.item[idx] = slot->capture_item; |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 857 | err = kctl->put(kctl, uctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | if (err > 0) |
| 859 | snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); |
| 860 | err = 0; |
| 861 | __unlock: |
| 862 | up_read(&card->controls_rwsem); |
| 863 | kfree(uctl); |
| 864 | kfree(uinfo); |
| 865 | return err; |
| 866 | } |
| 867 | |
| 868 | struct snd_mixer_oss_assign_table { |
| 869 | int oss_id; |
| 870 | const char *name; |
| 871 | int index; |
| 872 | }; |
| 873 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 874 | static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 876 | struct snd_ctl_elem_info *info; |
| 877 | struct snd_kcontrol *kcontrol; |
| 878 | struct snd_card *card = mixer->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | int err; |
| 880 | |
| 881 | down_read(&card->controls_rwsem); |
| 882 | kcontrol = snd_mixer_oss_test_id(mixer, name, index); |
| 883 | if (kcontrol == NULL) { |
| 884 | up_read(&card->controls_rwsem); |
| 885 | return 0; |
| 886 | } |
| 887 | info = kmalloc(sizeof(*info), GFP_KERNEL); |
| 888 | if (! info) { |
| 889 | up_read(&card->controls_rwsem); |
| 890 | return -ENOMEM; |
| 891 | } |
| 892 | if ((err = kcontrol->info(kcontrol, info)) < 0) { |
| 893 | up_read(&card->controls_rwsem); |
| 894 | kfree(info); |
| 895 | return err; |
| 896 | } |
| 897 | slot->numid[item] = kcontrol->id.numid; |
| 898 | up_read(&card->controls_rwsem); |
| 899 | if (info->count > slot->channels) |
| 900 | slot->channels = info->count; |
| 901 | slot->present |= 1 << item; |
| 902 | kfree(info); |
| 903 | return 0; |
| 904 | } |
| 905 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 906 | static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | { |
| 908 | struct slot *p = (struct slot *)chn->private_data; |
| 909 | if (p) { |
| 910 | if (p->allocated && p->assigned) { |
| 911 | kfree(p->assigned->name); |
| 912 | kfree(p->assigned); |
| 913 | } |
| 914 | kfree(p); |
| 915 | } |
| 916 | } |
| 917 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 918 | static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | { |
| 920 | int idx = rslot->number; /* remember this */ |
| 921 | if (rslot->private_free) |
| 922 | rslot->private_free(rslot); |
| 923 | memset(rslot, 0, sizeof(*rslot)); |
| 924 | rslot->number = idx; |
| 925 | } |
| 926 | |
Jean Delvare | 22a860a | 2008-01-08 15:33:10 -0800 | [diff] [blame] | 927 | /* In a separate function to keep gcc 3.2 happy - do NOT merge this in |
| 928 | snd_mixer_oss_build_input! */ |
| 929 | static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer, |
| 930 | struct snd_mixer_oss_assign_table *ptr, |
| 931 | struct slot *slot) |
| 932 | { |
| 933 | char str[64]; |
| 934 | int err; |
| 935 | |
| 936 | err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index, |
| 937 | SNDRV_MIXER_OSS_ITEM_GLOBAL); |
| 938 | if (err) |
| 939 | return err; |
| 940 | sprintf(str, "%s Switch", ptr->name); |
| 941 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 942 | SNDRV_MIXER_OSS_ITEM_GSWITCH); |
| 943 | if (err) |
| 944 | return err; |
| 945 | sprintf(str, "%s Route", ptr->name); |
| 946 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 947 | SNDRV_MIXER_OSS_ITEM_GROUTE); |
| 948 | if (err) |
| 949 | return err; |
| 950 | sprintf(str, "%s Volume", ptr->name); |
| 951 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 952 | SNDRV_MIXER_OSS_ITEM_GVOLUME); |
| 953 | if (err) |
| 954 | return err; |
| 955 | sprintf(str, "%s Playback Switch", ptr->name); |
| 956 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 957 | SNDRV_MIXER_OSS_ITEM_PSWITCH); |
| 958 | if (err) |
| 959 | return err; |
| 960 | sprintf(str, "%s Playback Route", ptr->name); |
| 961 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 962 | SNDRV_MIXER_OSS_ITEM_PROUTE); |
| 963 | if (err) |
| 964 | return err; |
| 965 | sprintf(str, "%s Playback Volume", ptr->name); |
| 966 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 967 | SNDRV_MIXER_OSS_ITEM_PVOLUME); |
| 968 | if (err) |
| 969 | return err; |
| 970 | sprintf(str, "%s Capture Switch", ptr->name); |
| 971 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 972 | SNDRV_MIXER_OSS_ITEM_CSWITCH); |
| 973 | if (err) |
| 974 | return err; |
| 975 | sprintf(str, "%s Capture Route", ptr->name); |
| 976 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 977 | SNDRV_MIXER_OSS_ITEM_CROUTE); |
| 978 | if (err) |
| 979 | return err; |
| 980 | sprintf(str, "%s Capture Volume", ptr->name); |
| 981 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, |
| 982 | SNDRV_MIXER_OSS_ITEM_CVOLUME); |
| 983 | if (err) |
| 984 | return err; |
| 985 | |
| 986 | return 0; |
| 987 | } |
| 988 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | /* |
| 990 | * build an OSS mixer element. |
| 991 | * ptr_allocated means the entry is dynamically allocated (change via proc file). |
| 992 | * when replace_old = 1, the old entry is replaced with the new one. |
| 993 | */ |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 994 | 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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | { |
| 996 | struct slot slot; |
| 997 | struct slot *pslot; |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 998 | struct snd_kcontrol *kctl; |
| 999 | struct snd_mixer_oss_slot *rslot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | char str[64]; |
| 1001 | |
| 1002 | /* check if already assigned */ |
| 1003 | if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) |
| 1004 | return 0; |
| 1005 | |
| 1006 | memset(&slot, 0, sizeof(slot)); |
| 1007 | memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ |
Jean Delvare | 22a860a | 2008-01-08 15:33:10 -0800 | [diff] [blame] | 1008 | if (snd_mixer_oss_build_test_all(mixer, ptr, &slot)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | return 0; |
| 1010 | down_read(&mixer->card->controls_rwsem); |
| 1011 | if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1012 | struct snd_ctl_elem_info *uinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | |
Panagiotis Issaris | 59feddb | 2006-07-25 15:28:03 +0200 | [diff] [blame] | 1014 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1015 | if (! uinfo) { |
| 1016 | up_read(&mixer->card->controls_rwsem); |
| 1017 | return -ENOMEM; |
| 1018 | } |
| 1019 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | if (kctl->info(kctl, uinfo)) { |
| 1021 | up_read(&mixer->card->controls_rwsem); |
| 1022 | return 0; |
| 1023 | } |
| 1024 | strcpy(str, ptr->name); |
| 1025 | if (!strcmp(str, "Master")) |
| 1026 | strcpy(str, "Mix"); |
| 1027 | if (!strcmp(str, "Master Mono")) |
| 1028 | strcpy(str, "Mix Mono"); |
| 1029 | slot.capture_item = 0; |
| 1030 | if (!strcmp(uinfo->value.enumerated.name, str)) { |
| 1031 | slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; |
| 1032 | } else { |
| 1033 | for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { |
| 1034 | uinfo->value.enumerated.item = slot.capture_item; |
| 1035 | if (kctl->info(kctl, uinfo)) { |
| 1036 | up_read(&mixer->card->controls_rwsem); |
| 1037 | return 0; |
| 1038 | } |
| 1039 | if (!strcmp(uinfo->value.enumerated.name, str)) { |
| 1040 | slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; |
| 1041 | break; |
| 1042 | } |
| 1043 | } |
| 1044 | } |
| 1045 | kfree(uinfo); |
| 1046 | } |
| 1047 | up_read(&mixer->card->controls_rwsem); |
| 1048 | if (slot.present != 0) { |
Robert P. J. Day | 5cbded5 | 2006-12-13 00:35:56 -0800 | [diff] [blame] | 1049 | pslot = kmalloc(sizeof(slot), GFP_KERNEL); |
Takashi Iwai | 7c22f1a | 2005-10-10 11:46:31 +0200 | [diff] [blame] | 1050 | if (! pslot) |
| 1051 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | *pslot = slot; |
| 1053 | pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; |
| 1054 | pslot->assigned = ptr; |
| 1055 | pslot->allocated = ptr_allocated; |
| 1056 | rslot = &mixer->slots[ptr->oss_id]; |
| 1057 | mixer_slot_clear(rslot); |
| 1058 | rslot->stereo = slot.channels > 1 ? 1 : 0; |
| 1059 | rslot->get_volume = snd_mixer_oss_get_volume1; |
| 1060 | rslot->put_volume = snd_mixer_oss_put_volume1; |
| 1061 | /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ |
| 1062 | if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { |
| 1063 | rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; |
| 1064 | rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; |
| 1065 | } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { |
| 1066 | rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; |
| 1067 | rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; |
| 1068 | } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { |
| 1069 | mixer->mask_recsrc |= 1 << ptr->oss_id; |
| 1070 | } |
| 1071 | rslot->private_data = pslot; |
| 1072 | rslot->private_free = snd_mixer_oss_slot_free; |
| 1073 | return 1; |
| 1074 | } |
| 1075 | return 0; |
| 1076 | } |
| 1077 | |
Takashi Iwai | 04f141a | 2005-12-01 10:43:51 +0100 | [diff] [blame] | 1078 | #ifdef CONFIG_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | /* |
| 1080 | */ |
| 1081 | #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name |
| 1082 | static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { |
| 1083 | MIXER_VOL(VOLUME), |
| 1084 | MIXER_VOL(BASS), |
| 1085 | MIXER_VOL(TREBLE), |
| 1086 | MIXER_VOL(SYNTH), |
| 1087 | MIXER_VOL(PCM), |
| 1088 | MIXER_VOL(SPEAKER), |
| 1089 | MIXER_VOL(LINE), |
| 1090 | MIXER_VOL(MIC), |
| 1091 | MIXER_VOL(CD), |
| 1092 | MIXER_VOL(IMIX), |
| 1093 | MIXER_VOL(ALTPCM), |
| 1094 | MIXER_VOL(RECLEV), |
| 1095 | MIXER_VOL(IGAIN), |
| 1096 | MIXER_VOL(OGAIN), |
| 1097 | MIXER_VOL(LINE1), |
| 1098 | MIXER_VOL(LINE2), |
| 1099 | MIXER_VOL(LINE3), |
| 1100 | MIXER_VOL(DIGITAL1), |
| 1101 | MIXER_VOL(DIGITAL2), |
| 1102 | MIXER_VOL(DIGITAL3), |
| 1103 | MIXER_VOL(PHONEIN), |
| 1104 | MIXER_VOL(PHONEOUT), |
| 1105 | MIXER_VOL(VIDEO), |
| 1106 | MIXER_VOL(RADIO), |
| 1107 | MIXER_VOL(MONITOR), |
| 1108 | }; |
| 1109 | |
| 1110 | /* |
| 1111 | * /proc interface |
| 1112 | */ |
| 1113 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1114 | static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, |
| 1115 | struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1117 | struct snd_mixer_oss *mixer = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | int i; |
| 1119 | |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1120 | mutex_lock(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { |
| 1122 | struct slot *p; |
| 1123 | |
| 1124 | if (! oss_mixer_names[i]) |
| 1125 | continue; |
| 1126 | p = (struct slot *)mixer->slots[i].private_data; |
| 1127 | snd_iprintf(buffer, "%s ", oss_mixer_names[i]); |
| 1128 | if (p && p->assigned) |
| 1129 | snd_iprintf(buffer, "\"%s\" %d\n", |
| 1130 | p->assigned->name, |
| 1131 | p->assigned->index); |
| 1132 | else |
| 1133 | snd_iprintf(buffer, "\"\" 0\n"); |
| 1134 | } |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1135 | mutex_unlock(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | } |
| 1137 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1138 | static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, |
| 1139 | struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1141 | struct snd_mixer_oss *mixer = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | char line[128], str[32], idxstr[16], *cptr; |
| 1143 | int ch, idx; |
| 1144 | struct snd_mixer_oss_assign_table *tbl; |
| 1145 | struct slot *slot; |
| 1146 | |
| 1147 | while (!snd_info_get_line(buffer, line, sizeof(line))) { |
| 1148 | cptr = snd_info_get_str(str, line, sizeof(str)); |
| 1149 | for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) |
| 1150 | if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) |
| 1151 | break; |
| 1152 | if (ch >= SNDRV_OSS_MAX_MIXERS) { |
| 1153 | snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); |
| 1154 | continue; |
| 1155 | } |
| 1156 | cptr = snd_info_get_str(str, cptr, sizeof(str)); |
| 1157 | if (! *str) { |
| 1158 | /* remove the entry */ |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1159 | mutex_lock(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1160 | mixer_slot_clear(&mixer->slots[ch]); |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1161 | mutex_unlock(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | continue; |
| 1163 | } |
| 1164 | snd_info_get_str(idxstr, cptr, sizeof(idxstr)); |
| 1165 | idx = simple_strtoul(idxstr, NULL, 10); |
| 1166 | if (idx >= 0x4000) { /* too big */ |
| 1167 | snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); |
| 1168 | continue; |
| 1169 | } |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1170 | mutex_lock(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | slot = (struct slot *)mixer->slots[ch].private_data; |
| 1172 | if (slot && slot->assigned && |
| 1173 | slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) |
| 1174 | /* not changed */ |
| 1175 | goto __unlock; |
| 1176 | tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); |
| 1177 | if (! tbl) { |
| 1178 | snd_printk(KERN_ERR "mixer_oss: no memory\n"); |
| 1179 | goto __unlock; |
| 1180 | } |
| 1181 | tbl->oss_id = ch; |
Paulo Marques | 543537b | 2005-06-23 00:09:02 -0700 | [diff] [blame] | 1182 | tbl->name = kstrdup(str, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1183 | if (! tbl->name) { |
| 1184 | kfree(tbl); |
| 1185 | goto __unlock; |
| 1186 | } |
| 1187 | tbl->index = idx; |
| 1188 | if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { |
| 1189 | kfree(tbl->name); |
| 1190 | kfree(tbl); |
| 1191 | } |
| 1192 | __unlock: |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1193 | mutex_unlock(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | } |
| 1195 | } |
| 1196 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1197 | static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1199 | struct snd_info_entry *entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | |
| 1201 | entry = snd_info_create_card_entry(mixer->card, "oss_mixer", |
| 1202 | mixer->card->proc_root); |
| 1203 | if (! entry) |
| 1204 | return; |
| 1205 | entry->content = SNDRV_INFO_CONTENT_TEXT; |
| 1206 | entry->mode = S_IFREG | S_IRUGO | S_IWUSR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | entry->c.text.read = snd_mixer_oss_proc_read; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | entry->c.text.write = snd_mixer_oss_proc_write; |
| 1209 | entry->private_data = mixer; |
| 1210 | if (snd_info_register(entry) < 0) { |
| 1211 | snd_info_free_entry(entry); |
| 1212 | entry = NULL; |
| 1213 | } |
| 1214 | mixer->proc_entry = entry; |
| 1215 | } |
| 1216 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1217 | static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | { |
Takashi Iwai | 746d4a0 | 2006-06-23 14:37:59 +0200 | [diff] [blame] | 1219 | snd_info_free_entry(mixer->proc_entry); |
| 1220 | mixer->proc_entry = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | } |
Takashi Iwai | 04f141a | 2005-12-01 10:43:51 +0100 | [diff] [blame] | 1222 | #else /* !CONFIG_PROC_FS */ |
| 1223 | #define snd_mixer_oss_proc_init(mix) |
| 1224 | #define snd_mixer_oss_proc_done(mix) |
| 1225 | #endif /* CONFIG_PROC_FS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1227 | static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | { |
| 1229 | static struct snd_mixer_oss_assign_table table[] = { |
| 1230 | { SOUND_MIXER_VOLUME, "Master", 0 }, |
| 1231 | { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ |
| 1232 | { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, |
| 1233 | { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, |
| 1234 | { SOUND_MIXER_SYNTH, "Synth", 0 }, |
| 1235 | { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ |
| 1236 | { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ |
| 1237 | { SOUND_MIXER_PCM, "PCM", 0 }, |
| 1238 | { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, |
| 1239 | { SOUND_MIXER_LINE, "Line", 0 }, |
| 1240 | { SOUND_MIXER_MIC, "Mic", 0 }, |
| 1241 | { SOUND_MIXER_CD, "CD", 0 }, |
| 1242 | { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, |
| 1243 | { SOUND_MIXER_ALTPCM, "PCM", 1 }, |
| 1244 | { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ |
| 1245 | { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ |
| 1246 | { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, |
| 1247 | { SOUND_MIXER_IGAIN, "Capture", 0 }, |
| 1248 | { SOUND_MIXER_OGAIN, "Playback", 0 }, |
| 1249 | { SOUND_MIXER_LINE1, "Aux", 0 }, |
| 1250 | { SOUND_MIXER_LINE2, "Aux", 1 }, |
| 1251 | { SOUND_MIXER_LINE3, "Aux", 2 }, |
| 1252 | { SOUND_MIXER_DIGITAL1, "Digital", 0 }, |
| 1253 | { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ |
| 1254 | { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ |
| 1255 | { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ |
| 1256 | { SOUND_MIXER_DIGITAL2, "Digital", 1 }, |
| 1257 | { SOUND_MIXER_DIGITAL3, "Digital", 2 }, |
| 1258 | { SOUND_MIXER_PHONEIN, "Phone", 0 }, |
| 1259 | { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, |
Takashi Iwai | 6c4cc3a | 2008-02-04 12:44:11 +0100 | [diff] [blame] | 1260 | { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/ |
| 1261 | { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ |
| 1263 | { SOUND_MIXER_VIDEO, "Video", 0 }, |
| 1264 | { SOUND_MIXER_RADIO, "Radio", 0 }, |
| 1265 | { SOUND_MIXER_MONITOR, "Monitor", 0 } |
| 1266 | }; |
| 1267 | unsigned int idx; |
| 1268 | |
| 1269 | for (idx = 0; idx < ARRAY_SIZE(table); idx++) |
| 1270 | snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); |
| 1271 | if (mixer->mask_recsrc) { |
| 1272 | mixer->get_recsrc = snd_mixer_oss_get_recsrc2; |
| 1273 | mixer->put_recsrc = snd_mixer_oss_put_recsrc2; |
| 1274 | } |
| 1275 | } |
| 1276 | |
| 1277 | /* |
| 1278 | * |
| 1279 | */ |
| 1280 | |
| 1281 | static int snd_mixer_oss_free1(void *private) |
| 1282 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1283 | struct snd_mixer_oss *mixer = private; |
| 1284 | struct snd_card *card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | int idx; |
| 1286 | |
| 1287 | snd_assert(mixer != NULL, return -ENXIO); |
| 1288 | card = mixer->card; |
| 1289 | snd_assert(mixer == card->mixer_oss, return -ENXIO); |
| 1290 | card->mixer_oss = NULL; |
| 1291 | for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1292 | struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | if (chn->private_free) |
| 1294 | chn->private_free(chn); |
| 1295 | } |
| 1296 | kfree(mixer); |
| 1297 | return 0; |
| 1298 | } |
| 1299 | |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1300 | static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | { |
Takashi Iwai | f956b4a | 2005-11-17 14:01:22 +0100 | [diff] [blame] | 1302 | struct snd_mixer_oss *mixer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | |
| 1304 | if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { |
| 1305 | char name[128]; |
| 1306 | int idx, err; |
| 1307 | |
| 1308 | mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); |
| 1309 | if (mixer == NULL) |
| 1310 | return -ENOMEM; |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 1311 | mutex_init(&mixer->reg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | sprintf(name, "mixer%i%i", card->number, 0); |
| 1313 | if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, |
| 1314 | card, 0, |
Clemens Ladisch | f87135f | 2005-11-20 14:06:59 +0100 | [diff] [blame] | 1315 | &snd_mixer_oss_f_ops, card, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | name)) < 0) { |
Takashi Iwai | d3d579f | 2005-10-21 16:20:11 +0200 | [diff] [blame] | 1317 | snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", |
| 1318 | card->number, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1319 | kfree(mixer); |
| 1320 | return err; |
| 1321 | } |
| 1322 | mixer->oss_dev_alloc = 1; |
| 1323 | mixer->card = card; |
| 1324 | if (*card->mixername) |
| 1325 | strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); |
| 1326 | else |
| 1327 | strlcpy(mixer->name, name, sizeof(mixer->name)); |
| 1328 | #ifdef SNDRV_OSS_INFO_DEV_MIXERS |
| 1329 | snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, |
| 1330 | card->number, |
| 1331 | mixer->name); |
| 1332 | #endif |
| 1333 | for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) |
| 1334 | mixer->slots[idx].number = idx; |
| 1335 | card->mixer_oss = mixer; |
| 1336 | snd_mixer_oss_build(mixer); |
| 1337 | snd_mixer_oss_proc_init(mixer); |
Takashi Iwai | c461482 | 2006-06-23 14:38:23 +0200 | [diff] [blame] | 1338 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1339 | mixer = card->mixer_oss; |
| 1340 | if (mixer == NULL) |
| 1341 | return 0; |
Takashi Iwai | c461482 | 2006-06-23 14:38:23 +0200 | [diff] [blame] | 1342 | if (mixer->oss_dev_alloc) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | #ifdef SNDRV_OSS_INFO_DEV_MIXERS |
Takashi Iwai | c461482 | 2006-06-23 14:38:23 +0200 | [diff] [blame] | 1344 | snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1345 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1346 | snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); |
Takashi Iwai | c461482 | 2006-06-23 14:38:23 +0200 | [diff] [blame] | 1347 | mixer->oss_dev_alloc = 0; |
| 1348 | } |
| 1349 | if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) |
| 1350 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | snd_mixer_oss_proc_done(mixer); |
| 1352 | return snd_mixer_oss_free1(mixer); |
| 1353 | } |
| 1354 | return 0; |
| 1355 | } |
| 1356 | |
| 1357 | static int __init alsa_mixer_oss_init(void) |
| 1358 | { |
| 1359 | int idx; |
| 1360 | |
| 1361 | snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; |
| 1362 | for (idx = 0; idx < SNDRV_CARDS; idx++) { |
| 1363 | if (snd_cards[idx]) |
| 1364 | snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); |
| 1365 | } |
| 1366 | return 0; |
| 1367 | } |
| 1368 | |
| 1369 | static void __exit alsa_mixer_oss_exit(void) |
| 1370 | { |
| 1371 | int idx; |
| 1372 | |
| 1373 | snd_mixer_oss_notify_callback = NULL; |
| 1374 | for (idx = 0; idx < SNDRV_CARDS; idx++) { |
| 1375 | if (snd_cards[idx]) |
| 1376 | snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE); |
| 1377 | } |
| 1378 | } |
| 1379 | |
| 1380 | module_init(alsa_mixer_oss_init) |
| 1381 | module_exit(alsa_mixer_oss_exit) |
| 1382 | |
| 1383 | EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); |