1 /* 2 * OSS emulation layer for the mixer interface 3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz> 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 22 #include <sound/driver.h> 23 #include <linux/init.h> 24 #include <linux/smp_lock.h> 25 #include <linux/slab.h> 26 #include <linux/time.h> 27 #include <linux/string.h> 28 #include <sound/core.h> 29 #include <sound/minors.h> 30 #include <sound/control.h> 31 #include <sound/info.h> 32 #include <sound/mixer_oss.h> 33 #include <linux/soundcard.h> 34 35 #define OSS_ALSAEMULVER _SIOR ('M', 249, int) 36 37 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 38 MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); 39 MODULE_LICENSE("GPL"); 40 MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); 41 42 static int snd_mixer_oss_open(struct inode *inode, struct file *file) 43 { 44 struct snd_card *card; 45 struct snd_mixer_oss_file *fmixer; 46 int err; 47 48 card = snd_lookup_oss_minor_data(iminor(inode), 49 SNDRV_OSS_DEVICE_TYPE_MIXER); 50 if (card == NULL) 51 return -ENODEV; 52 if (card->mixer_oss == NULL) 53 return -ENODEV; 54 err = snd_card_file_add(card, file); 55 if (err < 0) 56 return err; 57 fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); 58 if (fmixer == NULL) { 59 snd_card_file_remove(card, file); 60 return -ENOMEM; 61 } 62 fmixer->card = card; 63 fmixer->mixer = card->mixer_oss; 64 file->private_data = fmixer; 65 if (!try_module_get(card->module)) { 66 kfree(fmixer); 67 snd_card_file_remove(card, file); 68 return -EFAULT; 69 } 70 return 0; 71 } 72 73 static int snd_mixer_oss_release(struct inode *inode, struct file *file) 74 { 75 struct snd_mixer_oss_file *fmixer; 76 77 if (file->private_data) { 78 fmixer = (struct snd_mixer_oss_file *) file->private_data; 79 module_put(fmixer->card->module); 80 snd_card_file_remove(fmixer->card, file); 81 kfree(fmixer); 82 } 83 return 0; 84 } 85 86 static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer, 87 mixer_info __user *_info) 88 { 89 struct snd_card *card = fmixer->card; 90 struct snd_mixer_oss *mixer = fmixer->mixer; 91 struct mixer_info info; 92 93 memset(&info, 0, sizeof(info)); 94 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); 95 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); 96 info.modify_counter = card->mixer_oss_change_count; 97 if (copy_to_user(_info, &info, sizeof(info))) 98 return -EFAULT; 99 return 0; 100 } 101 102 static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer, 103 _old_mixer_info __user *_info) 104 { 105 struct snd_card *card = fmixer->card; 106 struct snd_mixer_oss *mixer = fmixer->mixer; 107 _old_mixer_info info; 108 109 memset(&info, 0, sizeof(info)); 110 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); 111 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); 112 if (copy_to_user(_info, &info, sizeof(info))) 113 return -EFAULT; 114 return 0; 115 } 116 117 static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer) 118 { 119 struct snd_mixer_oss *mixer = fmixer->mixer; 120 int result = 0; 121 122 if (mixer == NULL) 123 return -EIO; 124 if (mixer->get_recsrc && mixer->put_recsrc) 125 result |= SOUND_CAP_EXCL_INPUT; 126 return result; 127 } 128 129 static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer) 130 { 131 struct snd_mixer_oss *mixer = fmixer->mixer; 132 struct snd_mixer_oss_slot *pslot; 133 int result = 0, chn; 134 135 if (mixer == NULL) 136 return -EIO; 137 for (chn = 0; chn < 31; chn++) { 138 pslot = &mixer->slots[chn]; 139 if (pslot->put_volume || pslot->put_recsrc) 140 result |= 1 << chn; 141 } 142 return result; 143 } 144 145 static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer) 146 { 147 struct snd_mixer_oss *mixer = fmixer->mixer; 148 struct snd_mixer_oss_slot *pslot; 149 int result = 0, chn; 150 151 if (mixer == NULL) 152 return -EIO; 153 for (chn = 0; chn < 31; chn++) { 154 pslot = &mixer->slots[chn]; 155 if (pslot->put_volume && pslot->stereo) 156 result |= 1 << chn; 157 } 158 return result; 159 } 160 161 static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer) 162 { 163 struct snd_mixer_oss *mixer = fmixer->mixer; 164 int result = 0; 165 166 if (mixer == NULL) 167 return -EIO; 168 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ 169 result = mixer->mask_recsrc; 170 } else { 171 struct snd_mixer_oss_slot *pslot; 172 int chn; 173 for (chn = 0; chn < 31; chn++) { 174 pslot = &mixer->slots[chn]; 175 if (pslot->put_recsrc) 176 result |= 1 << chn; 177 } 178 } 179 return result; 180 } 181 182 static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer) 183 { 184 struct snd_mixer_oss *mixer = fmixer->mixer; 185 int result = 0; 186 187 if (mixer == NULL) 188 return -EIO; 189 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ 190 int err; 191 if ((err = mixer->get_recsrc(fmixer, &result)) < 0) 192 return err; 193 result = 1 << result; 194 } else { 195 struct snd_mixer_oss_slot *pslot; 196 int chn; 197 for (chn = 0; chn < 31; chn++) { 198 pslot = &mixer->slots[chn]; 199 if (pslot->get_recsrc) { 200 int active = 0; 201 pslot->get_recsrc(fmixer, pslot, &active); 202 if (active) 203 result |= 1 << chn; 204 } 205 } 206 } 207 return mixer->oss_recsrc = result; 208 } 209 210 static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc) 211 { 212 struct snd_mixer_oss *mixer = fmixer->mixer; 213 struct snd_mixer_oss_slot *pslot; 214 int chn, active; 215 int result = 0; 216 217 if (mixer == NULL) 218 return -EIO; 219 if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */ 220 if (recsrc & ~mixer->oss_recsrc) 221 recsrc &= ~mixer->oss_recsrc; 222 mixer->put_recsrc(fmixer, ffz(~recsrc)); 223 mixer->get_recsrc(fmixer, &result); 224 result = 1 << result; 225 } 226 for (chn = 0; chn < 31; chn++) { 227 pslot = &mixer->slots[chn]; 228 if (pslot->put_recsrc) { 229 active = (recsrc & (1 << chn)) ? 1 : 0; 230 pslot->put_recsrc(fmixer, pslot, active); 231 } 232 } 233 if (! result) { 234 for (chn = 0; chn < 31; chn++) { 235 pslot = &mixer->slots[chn]; 236 if (pslot->get_recsrc) { 237 active = 0; 238 pslot->get_recsrc(fmixer, pslot, &active); 239 if (active) 240 result |= 1 << chn; 241 } 242 } 243 } 244 return result; 245 } 246 247 static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot) 248 { 249 struct snd_mixer_oss *mixer = fmixer->mixer; 250 struct snd_mixer_oss_slot *pslot; 251 int result = 0, left, right; 252 253 if (mixer == NULL || slot > 30) 254 return -EIO; 255 pslot = &mixer->slots[slot]; 256 left = pslot->volume[0]; 257 right = pslot->volume[1]; 258 if (pslot->get_volume) 259 result = pslot->get_volume(fmixer, pslot, &left, &right); 260 if (!pslot->stereo) 261 right = left; 262 snd_assert(left >= 0 && left <= 100, return -EIO); 263 snd_assert(right >= 0 && right <= 100, return -EIO); 264 if (result >= 0) { 265 pslot->volume[0] = left; 266 pslot->volume[1] = right; 267 result = (left & 0xff) | ((right & 0xff) << 8); 268 } 269 return result; 270 } 271 272 static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer, 273 int slot, int volume) 274 { 275 struct snd_mixer_oss *mixer = fmixer->mixer; 276 struct snd_mixer_oss_slot *pslot; 277 int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff; 278 279 if (mixer == NULL || slot > 30) 280 return -EIO; 281 pslot = &mixer->slots[slot]; 282 if (left > 100) 283 left = 100; 284 if (right > 100) 285 right = 100; 286 if (!pslot->stereo) 287 right = left; 288 if (pslot->put_volume) 289 result = pslot->put_volume(fmixer, pslot, left, right); 290 if (result < 0) 291 return result; 292 pslot->volume[0] = left; 293 pslot->volume[1] = right; 294 return (left & 0xff) | ((right & 0xff) << 8); 295 } 296 297 static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg) 298 { 299 void __user *argp = (void __user *)arg; 300 int __user *p = argp; 301 int tmp; 302 303 snd_assert(fmixer != NULL, return -ENXIO); 304 if (((cmd >> 8) & 0xff) == 'M') { 305 switch (cmd) { 306 case SOUND_MIXER_INFO: 307 return snd_mixer_oss_info(fmixer, argp); 308 case SOUND_OLD_MIXER_INFO: 309 return snd_mixer_oss_info_obsolete(fmixer, argp); 310 case SOUND_MIXER_WRITE_RECSRC: 311 if (get_user(tmp, p)) 312 return -EFAULT; 313 tmp = snd_mixer_oss_set_recsrc(fmixer, tmp); 314 if (tmp < 0) 315 return tmp; 316 return put_user(tmp, p); 317 case OSS_GETVERSION: 318 return put_user(SNDRV_OSS_VERSION, p); 319 case OSS_ALSAEMULVER: 320 return put_user(1, p); 321 case SOUND_MIXER_READ_DEVMASK: 322 tmp = snd_mixer_oss_devmask(fmixer); 323 if (tmp < 0) 324 return tmp; 325 return put_user(tmp, p); 326 case SOUND_MIXER_READ_STEREODEVS: 327 tmp = snd_mixer_oss_stereodevs(fmixer); 328 if (tmp < 0) 329 return tmp; 330 return put_user(tmp, p); 331 case SOUND_MIXER_READ_RECMASK: 332 tmp = snd_mixer_oss_recmask(fmixer); 333 if (tmp < 0) 334 return tmp; 335 return put_user(tmp, p); 336 case SOUND_MIXER_READ_CAPS: 337 tmp = snd_mixer_oss_caps(fmixer); 338 if (tmp < 0) 339 return tmp; 340 return put_user(tmp, p); 341 case SOUND_MIXER_READ_RECSRC: 342 tmp = snd_mixer_oss_get_recsrc(fmixer); 343 if (tmp < 0) 344 return tmp; 345 return put_user(tmp, p); 346 } 347 } 348 if (cmd & SIOC_IN) { 349 if (get_user(tmp, p)) 350 return -EFAULT; 351 tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp); 352 if (tmp < 0) 353 return tmp; 354 return put_user(tmp, p); 355 } else if (cmd & SIOC_OUT) { 356 tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff); 357 if (tmp < 0) 358 return tmp; 359 return put_user(tmp, p); 360 } 361 return -ENXIO; 362 } 363 364 static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 365 { 366 return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg); 367 } 368 369 int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg) 370 { 371 struct snd_mixer_oss_file fmixer; 372 373 snd_assert(card != NULL, return -ENXIO); 374 if (card->mixer_oss == NULL) 375 return -ENXIO; 376 memset(&fmixer, 0, sizeof(fmixer)); 377 fmixer.card = card; 378 fmixer.mixer = card->mixer_oss; 379 return snd_mixer_oss_ioctl1(&fmixer, cmd, arg); 380 } 381 382 #ifdef CONFIG_COMPAT 383 /* all compatible */ 384 #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl 385 #else 386 #define snd_mixer_oss_ioctl_compat NULL 387 #endif 388 389 /* 390 * REGISTRATION PART 391 */ 392 393 static struct file_operations snd_mixer_oss_f_ops = 394 { 395 .owner = THIS_MODULE, 396 .open = snd_mixer_oss_open, 397 .release = snd_mixer_oss_release, 398 .unlocked_ioctl = snd_mixer_oss_ioctl, 399 .compat_ioctl = snd_mixer_oss_ioctl_compat, 400 }; 401 402 /* 403 * utilities 404 */ 405 406 static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax) 407 { 408 long orange = omax - omin, nrange = nmax - nmin; 409 410 if (orange == 0) 411 return 0; 412 return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin; 413 } 414 415 /* convert from alsa native to oss values (0-100) */ 416 static long snd_mixer_oss_conv1(long val, long min, long max, int *old) 417 { 418 if (val == snd_mixer_oss_conv(*old, 0, 100, min, max)) 419 return *old; 420 return snd_mixer_oss_conv(val, min, max, 0, 100); 421 } 422 423 /* convert from oss to alsa native values */ 424 static long snd_mixer_oss_conv2(long val, long min, long max) 425 { 426 return snd_mixer_oss_conv(val, 0, 100, min, max); 427 } 428 429 #if 0 430 static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot) 431 { 432 struct snd_mixer_oss *mixer = card->mixer_oss; 433 if (mixer) 434 mixer->mask_recsrc |= 1 << slot; 435 } 436 437 static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot) 438 { 439 struct snd_mixer_oss *mixer = card->mixer_oss; 440 if (mixer && (mixer->mask_recsrc & (1 << slot))) 441 return 1; 442 return 0; 443 } 444 #endif 445 446 #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 447 448 #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 449 #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 450 #define SNDRV_MIXER_OSS_ITEM_GROUTE 2 451 #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 452 #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 453 #define SNDRV_MIXER_OSS_ITEM_PROUTE 5 454 #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 455 #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 456 #define SNDRV_MIXER_OSS_ITEM_CROUTE 8 457 #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 458 #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 459 460 #define SNDRV_MIXER_OSS_ITEM_COUNT 11 461 462 #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) 463 #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) 464 #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) 465 #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) 466 #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) 467 #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) 468 #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) 469 #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) 470 #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) 471 #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) 472 #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) 473 474 struct slot { 475 unsigned int signature; 476 unsigned int present; 477 unsigned int channels; 478 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; 479 unsigned int capture_item; 480 struct snd_mixer_oss_assign_table *assigned; 481 unsigned int allocated: 1; 482 }; 483 484 #define ID_UNKNOWN ((unsigned int)-1) 485 486 static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) 487 { 488 struct snd_card *card = mixer->card; 489 struct snd_ctl_elem_id id; 490 491 memset(&id, 0, sizeof(id)); 492 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 493 strcpy(id.name, name); 494 id.index = index; 495 return snd_ctl_find_id(card, &id); 496 } 497 498 static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, 499 struct snd_mixer_oss_slot *pslot, 500 unsigned int numid, 501 int *left, int *right) 502 { 503 struct snd_ctl_elem_info *uinfo; 504 struct snd_ctl_elem_value *uctl; 505 struct snd_kcontrol *kctl; 506 struct snd_card *card = fmixer->card; 507 508 if (numid == ID_UNKNOWN) 509 return; 510 down_read(&card->controls_rwsem); 511 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 512 up_read(&card->controls_rwsem); 513 return; 514 } 515 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 516 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 517 if (uinfo == NULL || uctl == NULL) 518 goto __unalloc; 519 if (kctl->info(kctl, uinfo)) 520 goto __unalloc; 521 if (kctl->get(kctl, uctl)) 522 goto __unalloc; 523 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && 524 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) 525 goto __unalloc; 526 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); 527 if (uinfo->count > 1) 528 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); 529 __unalloc: 530 up_read(&card->controls_rwsem); 531 kfree(uctl); 532 kfree(uinfo); 533 } 534 535 static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, 536 struct snd_mixer_oss_slot *pslot, 537 unsigned int numid, 538 int *left, int *right, 539 int route) 540 { 541 struct snd_ctl_elem_info *uinfo; 542 struct snd_ctl_elem_value *uctl; 543 struct snd_kcontrol *kctl; 544 struct snd_card *card = fmixer->card; 545 546 if (numid == ID_UNKNOWN) 547 return; 548 down_read(&card->controls_rwsem); 549 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 550 up_read(&card->controls_rwsem); 551 return; 552 } 553 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 554 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 555 if (uinfo == NULL || uctl == NULL) 556 goto __unalloc; 557 if (kctl->info(kctl, uinfo)) 558 goto __unalloc; 559 if (kctl->get(kctl, uctl)) 560 goto __unalloc; 561 if (!uctl->value.integer.value[0]) { 562 *left = 0; 563 if (uinfo->count == 1) 564 *right = 0; 565 } 566 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) 567 *right = 0; 568 __unalloc: 569 up_read(&card->controls_rwsem); 570 kfree(uctl); 571 kfree(uinfo); 572 } 573 574 static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, 575 struct snd_mixer_oss_slot *pslot, 576 int *left, int *right) 577 { 578 struct slot *slot = (struct slot *)pslot->private_data; 579 580 *left = *right = 100; 581 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { 582 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); 583 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { 584 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); 585 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { 586 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); 587 } 588 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { 589 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 590 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { 591 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 592 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { 593 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 594 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { 595 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 596 } 597 return 0; 598 } 599 600 static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, 601 struct snd_mixer_oss_slot *pslot, 602 unsigned int numid, 603 int left, int right) 604 { 605 struct snd_ctl_elem_info *uinfo; 606 struct snd_ctl_elem_value *uctl; 607 struct snd_kcontrol *kctl; 608 struct snd_card *card = fmixer->card; 609 int res; 610 611 if (numid == ID_UNKNOWN) 612 return; 613 down_read(&card->controls_rwsem); 614 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) 615 return; 616 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 617 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 618 if (uinfo == NULL || uctl == NULL) 619 goto __unalloc; 620 if (kctl->info(kctl, uinfo)) 621 goto __unalloc; 622 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && 623 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) 624 goto __unalloc; 625 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); 626 if (uinfo->count > 1) 627 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); 628 if ((res = kctl->put(kctl, uctl)) < 0) 629 goto __unalloc; 630 if (res > 0) 631 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 632 __unalloc: 633 up_read(&card->controls_rwsem); 634 kfree(uctl); 635 kfree(uinfo); 636 } 637 638 static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, 639 struct snd_mixer_oss_slot *pslot, 640 unsigned int numid, 641 int left, int right, 642 int route) 643 { 644 struct snd_ctl_elem_info *uinfo; 645 struct snd_ctl_elem_value *uctl; 646 struct snd_kcontrol *kctl; 647 struct snd_card *card = fmixer->card; 648 int res; 649 650 if (numid == ID_UNKNOWN) 651 return; 652 down_read(&card->controls_rwsem); 653 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 654 up_read(&fmixer->card->controls_rwsem); 655 return; 656 } 657 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 658 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 659 if (uinfo == NULL || uctl == NULL) 660 goto __unalloc; 661 if (kctl->info(kctl, uinfo)) 662 goto __unalloc; 663 if (uinfo->count > 1) { 664 uctl->value.integer.value[0] = left > 0 ? 1 : 0; 665 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; 666 if (route) { 667 uctl->value.integer.value[1] = 668 uctl->value.integer.value[2] = 0; 669 } 670 } else { 671 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; 672 } 673 if ((res = kctl->put(kctl, uctl)) < 0) 674 goto __unalloc; 675 if (res > 0) 676 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 677 __unalloc: 678 up_read(&card->controls_rwsem); 679 kfree(uctl); 680 kfree(uinfo); 681 } 682 683 static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, 684 struct snd_mixer_oss_slot *pslot, 685 int left, int right) 686 { 687 struct slot *slot = (struct slot *)pslot->private_data; 688 689 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { 690 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); 691 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) 692 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); 693 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { 694 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); 695 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { 696 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); 697 } 698 if (left || right) { 699 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) 700 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 701 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) 702 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 703 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) 704 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 705 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) 706 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 707 } else { 708 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { 709 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 710 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { 711 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 712 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { 713 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 714 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { 715 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 716 } 717 } 718 return 0; 719 } 720 721 static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, 722 struct snd_mixer_oss_slot *pslot, 723 int *active) 724 { 725 struct slot *slot = (struct slot *)pslot->private_data; 726 int left, right; 727 728 left = right = 1; 729 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); 730 *active = (left || right) ? 1 : 0; 731 return 0; 732 } 733 734 static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, 735 struct snd_mixer_oss_slot *pslot, 736 int *active) 737 { 738 struct slot *slot = (struct slot *)pslot->private_data; 739 int left, right; 740 741 left = right = 1; 742 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); 743 *active = (left || right) ? 1 : 0; 744 return 0; 745 } 746 747 static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, 748 struct snd_mixer_oss_slot *pslot, 749 int active) 750 { 751 struct slot *slot = (struct slot *)pslot->private_data; 752 753 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); 754 return 0; 755 } 756 757 static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, 758 struct snd_mixer_oss_slot *pslot, 759 int active) 760 { 761 struct slot *slot = (struct slot *)pslot->private_data; 762 763 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); 764 return 0; 765 } 766 767 static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) 768 { 769 struct snd_card *card = fmixer->card; 770 struct snd_mixer_oss *mixer = fmixer->mixer; 771 struct snd_kcontrol *kctl; 772 struct snd_mixer_oss_slot *pslot; 773 struct slot *slot; 774 struct snd_ctl_elem_info *uinfo; 775 struct snd_ctl_elem_value *uctl; 776 int err, idx; 777 778 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 779 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 780 if (uinfo == NULL || uctl == NULL) { 781 err = -ENOMEM; 782 goto __unlock; 783 } 784 down_read(&card->controls_rwsem); 785 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); 786 if (! kctl) { 787 err = -ENOENT; 788 goto __unlock; 789 } 790 if ((err = kctl->info(kctl, uinfo)) < 0) 791 goto __unlock; 792 if ((err = kctl->get(kctl, uctl)) < 0) 793 goto __unlock; 794 for (idx = 0; idx < 32; idx++) { 795 if (!(mixer->mask_recsrc & (1 << idx))) 796 continue; 797 pslot = &mixer->slots[idx]; 798 slot = (struct slot *)pslot->private_data; 799 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) 800 continue; 801 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) 802 continue; 803 if (slot->capture_item == uctl->value.enumerated.item[0]) { 804 *active_index = idx; 805 break; 806 } 807 } 808 err = 0; 809 __unlock: 810 up_read(&card->controls_rwsem); 811 kfree(uctl); 812 kfree(uinfo); 813 return err; 814 } 815 816 static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) 817 { 818 struct snd_card *card = fmixer->card; 819 struct snd_mixer_oss *mixer = fmixer->mixer; 820 struct snd_kcontrol *kctl; 821 struct snd_mixer_oss_slot *pslot; 822 struct slot *slot = NULL; 823 struct snd_ctl_elem_info *uinfo; 824 struct snd_ctl_elem_value *uctl; 825 int err; 826 unsigned int idx; 827 828 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 829 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 830 if (uinfo == NULL || uctl == NULL) { 831 err = -ENOMEM; 832 goto __unlock; 833 } 834 down_read(&card->controls_rwsem); 835 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); 836 if (! kctl) { 837 err = -ENOENT; 838 goto __unlock; 839 } 840 if ((err = kctl->info(kctl, uinfo)) < 0) 841 goto __unlock; 842 for (idx = 0; idx < 32; idx++) { 843 if (!(mixer->mask_recsrc & (1 << idx))) 844 continue; 845 pslot = &mixer->slots[idx]; 846 slot = (struct slot *)pslot->private_data; 847 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) 848 continue; 849 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) 850 continue; 851 if (idx == active_index) 852 break; 853 slot = NULL; 854 } 855 if (! slot) 856 goto __unlock; 857 for (idx = 0; idx < uinfo->count; idx++) 858 uctl->value.enumerated.item[idx] = slot->capture_item; 859 err = kctl->put(kctl, uctl); 860 if (err > 0) 861 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 862 err = 0; 863 __unlock: 864 up_read(&card->controls_rwsem); 865 kfree(uctl); 866 kfree(uinfo); 867 return err; 868 } 869 870 struct snd_mixer_oss_assign_table { 871 int oss_id; 872 const char *name; 873 int index; 874 }; 875 876 static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) 877 { 878 struct snd_ctl_elem_info *info; 879 struct snd_kcontrol *kcontrol; 880 struct snd_card *card = mixer->card; 881 int err; 882 883 down_read(&card->controls_rwsem); 884 kcontrol = snd_mixer_oss_test_id(mixer, name, index); 885 if (kcontrol == NULL) { 886 up_read(&card->controls_rwsem); 887 return 0; 888 } 889 info = kmalloc(sizeof(*info), GFP_KERNEL); 890 if (! info) { 891 up_read(&card->controls_rwsem); 892 return -ENOMEM; 893 } 894 if ((err = kcontrol->info(kcontrol, info)) < 0) { 895 up_read(&card->controls_rwsem); 896 kfree(info); 897 return err; 898 } 899 slot->numid[item] = kcontrol->id.numid; 900 up_read(&card->controls_rwsem); 901 if (info->count > slot->channels) 902 slot->channels = info->count; 903 slot->present |= 1 << item; 904 kfree(info); 905 return 0; 906 } 907 908 static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) 909 { 910 struct slot *p = (struct slot *)chn->private_data; 911 if (p) { 912 if (p->allocated && p->assigned) { 913 kfree(p->assigned->name); 914 kfree(p->assigned); 915 } 916 kfree(p); 917 } 918 } 919 920 static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) 921 { 922 int idx = rslot->number; /* remember this */ 923 if (rslot->private_free) 924 rslot->private_free(rslot); 925 memset(rslot, 0, sizeof(*rslot)); 926 rslot->number = idx; 927 } 928 929 /* 930 * build an OSS mixer element. 931 * ptr_allocated means the entry is dynamically allocated (change via proc file). 932 * when replace_old = 1, the old entry is replaced with the new one. 933 */ 934 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) 935 { 936 struct slot slot; 937 struct slot *pslot; 938 struct snd_kcontrol *kctl; 939 struct snd_mixer_oss_slot *rslot; 940 char str[64]; 941 942 /* check if already assigned */ 943 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) 944 return 0; 945 946 memset(&slot, 0, sizeof(slot)); 947 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ 948 if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index, 949 SNDRV_MIXER_OSS_ITEM_GLOBAL)) 950 return 0; 951 sprintf(str, "%s Switch", ptr->name); 952 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 953 SNDRV_MIXER_OSS_ITEM_GSWITCH)) 954 return 0; 955 sprintf(str, "%s Route", ptr->name); 956 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 957 SNDRV_MIXER_OSS_ITEM_GROUTE)) 958 return 0; 959 sprintf(str, "%s Volume", ptr->name); 960 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 961 SNDRV_MIXER_OSS_ITEM_GVOLUME)) 962 return 0; 963 sprintf(str, "%s Playback Switch", ptr->name); 964 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 965 SNDRV_MIXER_OSS_ITEM_PSWITCH)) 966 return 0; 967 sprintf(str, "%s Playback Route", ptr->name); 968 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 969 SNDRV_MIXER_OSS_ITEM_PROUTE)) 970 return 0; 971 sprintf(str, "%s Playback Volume", ptr->name); 972 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 973 SNDRV_MIXER_OSS_ITEM_PVOLUME)) 974 return 0; 975 sprintf(str, "%s Capture Switch", ptr->name); 976 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 977 SNDRV_MIXER_OSS_ITEM_CSWITCH)) 978 return 0; 979 sprintf(str, "%s Capture Route", ptr->name); 980 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 981 SNDRV_MIXER_OSS_ITEM_CROUTE)) 982 return 0; 983 sprintf(str, "%s Capture Volume", ptr->name); 984 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, 985 SNDRV_MIXER_OSS_ITEM_CVOLUME)) 986 return 0; 987 down_read(&mixer->card->controls_rwsem); 988 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { 989 struct snd_ctl_elem_info *uinfo; 990 991 uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL); 992 if (! uinfo) { 993 up_read(&mixer->card->controls_rwsem); 994 return -ENOMEM; 995 } 996 997 memset(uinfo, 0, sizeof(*uinfo)); 998 if (kctl->info(kctl, uinfo)) { 999 up_read(&mixer->card->controls_rwsem); 1000 return 0; 1001 } 1002 strcpy(str, ptr->name); 1003 if (!strcmp(str, "Master")) 1004 strcpy(str, "Mix"); 1005 if (!strcmp(str, "Master Mono")) 1006 strcpy(str, "Mix Mono"); 1007 slot.capture_item = 0; 1008 if (!strcmp(uinfo->value.enumerated.name, str)) { 1009 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; 1010 } else { 1011 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { 1012 uinfo->value.enumerated.item = slot.capture_item; 1013 if (kctl->info(kctl, uinfo)) { 1014 up_read(&mixer->card->controls_rwsem); 1015 return 0; 1016 } 1017 if (!strcmp(uinfo->value.enumerated.name, str)) { 1018 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; 1019 break; 1020 } 1021 } 1022 } 1023 kfree(uinfo); 1024 } 1025 up_read(&mixer->card->controls_rwsem); 1026 if (slot.present != 0) { 1027 pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL); 1028 if (! pslot) 1029 return -ENOMEM; 1030 *pslot = slot; 1031 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; 1032 pslot->assigned = ptr; 1033 pslot->allocated = ptr_allocated; 1034 rslot = &mixer->slots[ptr->oss_id]; 1035 mixer_slot_clear(rslot); 1036 rslot->stereo = slot.channels > 1 ? 1 : 0; 1037 rslot->get_volume = snd_mixer_oss_get_volume1; 1038 rslot->put_volume = snd_mixer_oss_put_volume1; 1039 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ 1040 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { 1041 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; 1042 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; 1043 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { 1044 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; 1045 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; 1046 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { 1047 mixer->mask_recsrc |= 1 << ptr->oss_id; 1048 } 1049 rslot->private_data = pslot; 1050 rslot->private_free = snd_mixer_oss_slot_free; 1051 return 1; 1052 } 1053 return 0; 1054 } 1055 1056 #ifdef CONFIG_PROC_FS 1057 /* 1058 */ 1059 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name 1060 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { 1061 MIXER_VOL(VOLUME), 1062 MIXER_VOL(BASS), 1063 MIXER_VOL(TREBLE), 1064 MIXER_VOL(SYNTH), 1065 MIXER_VOL(PCM), 1066 MIXER_VOL(SPEAKER), 1067 MIXER_VOL(LINE), 1068 MIXER_VOL(MIC), 1069 MIXER_VOL(CD), 1070 MIXER_VOL(IMIX), 1071 MIXER_VOL(ALTPCM), 1072 MIXER_VOL(RECLEV), 1073 MIXER_VOL(IGAIN), 1074 MIXER_VOL(OGAIN), 1075 MIXER_VOL(LINE1), 1076 MIXER_VOL(LINE2), 1077 MIXER_VOL(LINE3), 1078 MIXER_VOL(DIGITAL1), 1079 MIXER_VOL(DIGITAL2), 1080 MIXER_VOL(DIGITAL3), 1081 MIXER_VOL(PHONEIN), 1082 MIXER_VOL(PHONEOUT), 1083 MIXER_VOL(VIDEO), 1084 MIXER_VOL(RADIO), 1085 MIXER_VOL(MONITOR), 1086 }; 1087 1088 /* 1089 * /proc interface 1090 */ 1091 1092 static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, 1093 struct snd_info_buffer *buffer) 1094 { 1095 struct snd_mixer_oss *mixer = entry->private_data; 1096 int i; 1097 1098 down(&mixer->reg_mutex); 1099 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { 1100 struct slot *p; 1101 1102 if (! oss_mixer_names[i]) 1103 continue; 1104 p = (struct slot *)mixer->slots[i].private_data; 1105 snd_iprintf(buffer, "%s ", oss_mixer_names[i]); 1106 if (p && p->assigned) 1107 snd_iprintf(buffer, "\"%s\" %d\n", 1108 p->assigned->name, 1109 p->assigned->index); 1110 else 1111 snd_iprintf(buffer, "\"\" 0\n"); 1112 } 1113 up(&mixer->reg_mutex); 1114 } 1115 1116 static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, 1117 struct snd_info_buffer *buffer) 1118 { 1119 struct snd_mixer_oss *mixer = entry->private_data; 1120 char line[128], str[32], idxstr[16], *cptr; 1121 int ch, idx; 1122 struct snd_mixer_oss_assign_table *tbl; 1123 struct slot *slot; 1124 1125 while (!snd_info_get_line(buffer, line, sizeof(line))) { 1126 cptr = snd_info_get_str(str, line, sizeof(str)); 1127 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) 1128 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) 1129 break; 1130 if (ch >= SNDRV_OSS_MAX_MIXERS) { 1131 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); 1132 continue; 1133 } 1134 cptr = snd_info_get_str(str, cptr, sizeof(str)); 1135 if (! *str) { 1136 /* remove the entry */ 1137 down(&mixer->reg_mutex); 1138 mixer_slot_clear(&mixer->slots[ch]); 1139 up(&mixer->reg_mutex); 1140 continue; 1141 } 1142 snd_info_get_str(idxstr, cptr, sizeof(idxstr)); 1143 idx = simple_strtoul(idxstr, NULL, 10); 1144 if (idx >= 0x4000) { /* too big */ 1145 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); 1146 continue; 1147 } 1148 down(&mixer->reg_mutex); 1149 slot = (struct slot *)mixer->slots[ch].private_data; 1150 if (slot && slot->assigned && 1151 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) 1152 /* not changed */ 1153 goto __unlock; 1154 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); 1155 if (! tbl) { 1156 snd_printk(KERN_ERR "mixer_oss: no memory\n"); 1157 goto __unlock; 1158 } 1159 tbl->oss_id = ch; 1160 tbl->name = kstrdup(str, GFP_KERNEL); 1161 if (! tbl->name) { 1162 kfree(tbl); 1163 goto __unlock; 1164 } 1165 tbl->index = idx; 1166 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { 1167 kfree(tbl->name); 1168 kfree(tbl); 1169 } 1170 __unlock: 1171 up(&mixer->reg_mutex); 1172 } 1173 } 1174 1175 static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) 1176 { 1177 struct snd_info_entry *entry; 1178 1179 entry = snd_info_create_card_entry(mixer->card, "oss_mixer", 1180 mixer->card->proc_root); 1181 if (! entry) 1182 return; 1183 entry->content = SNDRV_INFO_CONTENT_TEXT; 1184 entry->mode = S_IFREG | S_IRUGO | S_IWUSR; 1185 entry->c.text.read_size = 8192; 1186 entry->c.text.read = snd_mixer_oss_proc_read; 1187 entry->c.text.write_size = 8192; 1188 entry->c.text.write = snd_mixer_oss_proc_write; 1189 entry->private_data = mixer; 1190 if (snd_info_register(entry) < 0) { 1191 snd_info_free_entry(entry); 1192 entry = NULL; 1193 } 1194 mixer->proc_entry = entry; 1195 } 1196 1197 static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) 1198 { 1199 if (mixer->proc_entry) { 1200 snd_info_unregister(mixer->proc_entry); 1201 mixer->proc_entry = NULL; 1202 } 1203 } 1204 #else /* !CONFIG_PROC_FS */ 1205 #define snd_mixer_oss_proc_init(mix) 1206 #define snd_mixer_oss_proc_done(mix) 1207 #endif /* CONFIG_PROC_FS */ 1208 1209 static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) 1210 { 1211 static struct snd_mixer_oss_assign_table table[] = { 1212 { SOUND_MIXER_VOLUME, "Master", 0 }, 1213 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ 1214 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, 1215 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, 1216 { SOUND_MIXER_SYNTH, "Synth", 0 }, 1217 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ 1218 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ 1219 { SOUND_MIXER_PCM, "PCM", 0 }, 1220 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, 1221 { SOUND_MIXER_LINE, "Line", 0 }, 1222 { SOUND_MIXER_MIC, "Mic", 0 }, 1223 { SOUND_MIXER_CD, "CD", 0 }, 1224 { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, 1225 { SOUND_MIXER_ALTPCM, "PCM", 1 }, 1226 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ 1227 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ 1228 { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, 1229 { SOUND_MIXER_IGAIN, "Capture", 0 }, 1230 { SOUND_MIXER_OGAIN, "Playback", 0 }, 1231 { SOUND_MIXER_LINE1, "Aux", 0 }, 1232 { SOUND_MIXER_LINE2, "Aux", 1 }, 1233 { SOUND_MIXER_LINE3, "Aux", 2 }, 1234 { SOUND_MIXER_DIGITAL1, "Digital", 0 }, 1235 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ 1236 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ 1237 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ 1238 { SOUND_MIXER_DIGITAL2, "Digital", 1 }, 1239 { SOUND_MIXER_DIGITAL3, "Digital", 2 }, 1240 { SOUND_MIXER_PHONEIN, "Phone", 0 }, 1241 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, 1242 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ 1243 { SOUND_MIXER_VIDEO, "Video", 0 }, 1244 { SOUND_MIXER_RADIO, "Radio", 0 }, 1245 { SOUND_MIXER_MONITOR, "Monitor", 0 } 1246 }; 1247 unsigned int idx; 1248 1249 for (idx = 0; idx < ARRAY_SIZE(table); idx++) 1250 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); 1251 if (mixer->mask_recsrc) { 1252 mixer->get_recsrc = snd_mixer_oss_get_recsrc2; 1253 mixer->put_recsrc = snd_mixer_oss_put_recsrc2; 1254 } 1255 } 1256 1257 /* 1258 * 1259 */ 1260 1261 static int snd_mixer_oss_free1(void *private) 1262 { 1263 struct snd_mixer_oss *mixer = private; 1264 struct snd_card *card; 1265 int idx; 1266 1267 snd_assert(mixer != NULL, return -ENXIO); 1268 card = mixer->card; 1269 snd_assert(mixer == card->mixer_oss, return -ENXIO); 1270 card->mixer_oss = NULL; 1271 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { 1272 struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; 1273 if (chn->private_free) 1274 chn->private_free(chn); 1275 } 1276 kfree(mixer); 1277 return 0; 1278 } 1279 1280 static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) 1281 { 1282 struct snd_mixer_oss *mixer; 1283 1284 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { 1285 char name[128]; 1286 int idx, err; 1287 1288 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); 1289 if (mixer == NULL) 1290 return -ENOMEM; 1291 init_MUTEX(&mixer->reg_mutex); 1292 sprintf(name, "mixer%i%i", card->number, 0); 1293 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, 1294 card, 0, 1295 &snd_mixer_oss_f_ops, card, 1296 name)) < 0) { 1297 snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", 1298 card->number, 0); 1299 kfree(mixer); 1300 return err; 1301 } 1302 mixer->oss_dev_alloc = 1; 1303 mixer->card = card; 1304 if (*card->mixername) 1305 strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); 1306 else 1307 strlcpy(mixer->name, name, sizeof(mixer->name)); 1308 #ifdef SNDRV_OSS_INFO_DEV_MIXERS 1309 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, 1310 card->number, 1311 mixer->name); 1312 #endif 1313 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) 1314 mixer->slots[idx].number = idx; 1315 card->mixer_oss = mixer; 1316 snd_mixer_oss_build(mixer); 1317 snd_mixer_oss_proc_init(mixer); 1318 } else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) { 1319 mixer = card->mixer_oss; 1320 if (mixer == NULL || !mixer->oss_dev_alloc) 1321 return 0; 1322 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); 1323 mixer->oss_dev_alloc = 0; 1324 } else { /* free */ 1325 mixer = card->mixer_oss; 1326 if (mixer == NULL) 1327 return 0; 1328 #ifdef SNDRV_OSS_INFO_DEV_MIXERS 1329 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); 1330 #endif 1331 if (mixer->oss_dev_alloc) 1332 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); 1333 snd_mixer_oss_proc_done(mixer); 1334 return snd_mixer_oss_free1(mixer); 1335 } 1336 return 0; 1337 } 1338 1339 static int __init alsa_mixer_oss_init(void) 1340 { 1341 int idx; 1342 1343 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; 1344 for (idx = 0; idx < SNDRV_CARDS; idx++) { 1345 if (snd_cards[idx]) 1346 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); 1347 } 1348 return 0; 1349 } 1350 1351 static void __exit alsa_mixer_oss_exit(void) 1352 { 1353 int idx; 1354 1355 snd_mixer_oss_notify_callback = NULL; 1356 for (idx = 0; idx < SNDRV_CARDS; idx++) { 1357 if (snd_cards[idx]) 1358 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE); 1359 } 1360 } 1361 1362 module_init(alsa_mixer_oss_init) 1363 module_exit(alsa_mixer_oss_exit) 1364 1365 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); 1366