1 /* 2 * OSS emulation layer for the mixer interface 3 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h> 23 #include <linux/slab.h> 24 #include <linux/time.h> 25 #include <linux/string.h> 26 #include <linux/module.h> 27 #include <sound/core.h> 28 #include <sound/minors.h> 29 #include <sound/control.h> 30 #include <sound/info.h> 31 #include <sound/mixer_oss.h> 32 #include <linux/soundcard.h> 33 34 #define OSS_ALSAEMULVER _SIOR ('M', 249, int) 35 36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 37 MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); 38 MODULE_LICENSE("GPL"); 39 MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); 40 41 static int snd_mixer_oss_open(struct inode *inode, struct file *file) 42 { 43 struct snd_card *card; 44 struct snd_mixer_oss_file *fmixer; 45 int err; 46 47 err = nonseekable_open(inode, file); 48 if (err < 0) 49 return err; 50 51 card = snd_lookup_oss_minor_data(iminor(inode), 52 SNDRV_OSS_DEVICE_TYPE_MIXER); 53 if (card == NULL) 54 return -ENODEV; 55 if (card->mixer_oss == NULL) 56 return -ENODEV; 57 err = snd_card_file_add(card, file); 58 if (err < 0) 59 return err; 60 fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); 61 if (fmixer == NULL) { 62 snd_card_file_remove(card, file); 63 return -ENOMEM; 64 } 65 fmixer->card = card; 66 fmixer->mixer = card->mixer_oss; 67 file->private_data = fmixer; 68 if (!try_module_get(card->module)) { 69 kfree(fmixer); 70 snd_card_file_remove(card, file); 71 return -EFAULT; 72 } 73 return 0; 74 } 75 76 static int snd_mixer_oss_release(struct inode *inode, struct file *file) 77 { 78 struct snd_mixer_oss_file *fmixer; 79 80 if (file->private_data) { 81 fmixer = file->private_data; 82 module_put(fmixer->card->module); 83 snd_card_file_remove(fmixer->card, file); 84 kfree(fmixer); 85 } 86 return 0; 87 } 88 89 static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer, 90 mixer_info __user *_info) 91 { 92 struct snd_card *card = fmixer->card; 93 struct snd_mixer_oss *mixer = fmixer->mixer; 94 struct mixer_info info; 95 96 memset(&info, 0, sizeof(info)); 97 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); 98 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); 99 info.modify_counter = card->mixer_oss_change_count; 100 if (copy_to_user(_info, &info, sizeof(info))) 101 return -EFAULT; 102 return 0; 103 } 104 105 static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer, 106 _old_mixer_info __user *_info) 107 { 108 struct snd_card *card = fmixer->card; 109 struct snd_mixer_oss *mixer = fmixer->mixer; 110 _old_mixer_info info; 111 112 memset(&info, 0, sizeof(info)); 113 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); 114 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); 115 if (copy_to_user(_info, &info, sizeof(info))) 116 return -EFAULT; 117 return 0; 118 } 119 120 static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer) 121 { 122 struct snd_mixer_oss *mixer = fmixer->mixer; 123 int result = 0; 124 125 if (mixer == NULL) 126 return -EIO; 127 if (mixer->get_recsrc && mixer->put_recsrc) 128 result |= SOUND_CAP_EXCL_INPUT; 129 return result; 130 } 131 132 static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer) 133 { 134 struct snd_mixer_oss *mixer = fmixer->mixer; 135 struct snd_mixer_oss_slot *pslot; 136 int result = 0, chn; 137 138 if (mixer == NULL) 139 return -EIO; 140 for (chn = 0; chn < 31; chn++) { 141 pslot = &mixer->slots[chn]; 142 if (pslot->put_volume || pslot->put_recsrc) 143 result |= 1 << chn; 144 } 145 return result; 146 } 147 148 static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer) 149 { 150 struct snd_mixer_oss *mixer = fmixer->mixer; 151 struct snd_mixer_oss_slot *pslot; 152 int result = 0, chn; 153 154 if (mixer == NULL) 155 return -EIO; 156 for (chn = 0; chn < 31; chn++) { 157 pslot = &mixer->slots[chn]; 158 if (pslot->put_volume && pslot->stereo) 159 result |= 1 << chn; 160 } 161 return result; 162 } 163 164 static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer) 165 { 166 struct snd_mixer_oss *mixer = fmixer->mixer; 167 int result = 0; 168 169 if (mixer == NULL) 170 return -EIO; 171 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ 172 result = mixer->mask_recsrc; 173 } else { 174 struct snd_mixer_oss_slot *pslot; 175 int chn; 176 for (chn = 0; chn < 31; chn++) { 177 pslot = &mixer->slots[chn]; 178 if (pslot->put_recsrc) 179 result |= 1 << chn; 180 } 181 } 182 return result; 183 } 184 185 static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer) 186 { 187 struct snd_mixer_oss *mixer = fmixer->mixer; 188 int result = 0; 189 190 if (mixer == NULL) 191 return -EIO; 192 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ 193 int err; 194 unsigned int index; 195 if ((err = mixer->get_recsrc(fmixer, &index)) < 0) 196 return err; 197 result = 1 << index; 198 } else { 199 struct snd_mixer_oss_slot *pslot; 200 int chn; 201 for (chn = 0; chn < 31; chn++) { 202 pslot = &mixer->slots[chn]; 203 if (pslot->get_recsrc) { 204 int active = 0; 205 pslot->get_recsrc(fmixer, pslot, &active); 206 if (active) 207 result |= 1 << chn; 208 } 209 } 210 } 211 return mixer->oss_recsrc = result; 212 } 213 214 static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc) 215 { 216 struct snd_mixer_oss *mixer = fmixer->mixer; 217 struct snd_mixer_oss_slot *pslot; 218 int chn, active; 219 unsigned int index; 220 int result = 0; 221 222 if (mixer == NULL) 223 return -EIO; 224 if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */ 225 if (recsrc & ~mixer->oss_recsrc) 226 recsrc &= ~mixer->oss_recsrc; 227 mixer->put_recsrc(fmixer, ffz(~recsrc)); 228 mixer->get_recsrc(fmixer, &index); 229 result = 1 << index; 230 } 231 for (chn = 0; chn < 31; chn++) { 232 pslot = &mixer->slots[chn]; 233 if (pslot->put_recsrc) { 234 active = (recsrc & (1 << chn)) ? 1 : 0; 235 pslot->put_recsrc(fmixer, pslot, active); 236 } 237 } 238 if (! result) { 239 for (chn = 0; chn < 31; chn++) { 240 pslot = &mixer->slots[chn]; 241 if (pslot->get_recsrc) { 242 active = 0; 243 pslot->get_recsrc(fmixer, pslot, &active); 244 if (active) 245 result |= 1 << chn; 246 } 247 } 248 } 249 return result; 250 } 251 252 static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot) 253 { 254 struct snd_mixer_oss *mixer = fmixer->mixer; 255 struct snd_mixer_oss_slot *pslot; 256 int result = 0, left, right; 257 258 if (mixer == NULL || slot > 30) 259 return -EIO; 260 pslot = &mixer->slots[slot]; 261 left = pslot->volume[0]; 262 right = pslot->volume[1]; 263 if (pslot->get_volume) 264 result = pslot->get_volume(fmixer, pslot, &left, &right); 265 if (!pslot->stereo) 266 right = left; 267 if (snd_BUG_ON(left < 0 || left > 100)) 268 return -EIO; 269 if (snd_BUG_ON(right < 0 || right > 100)) 270 return -EIO; 271 if (result >= 0) { 272 pslot->volume[0] = left; 273 pslot->volume[1] = right; 274 result = (left & 0xff) | ((right & 0xff) << 8); 275 } 276 return result; 277 } 278 279 static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer, 280 int slot, int volume) 281 { 282 struct snd_mixer_oss *mixer = fmixer->mixer; 283 struct snd_mixer_oss_slot *pslot; 284 int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff; 285 286 if (mixer == NULL || slot > 30) 287 return -EIO; 288 pslot = &mixer->slots[slot]; 289 if (left > 100) 290 left = 100; 291 if (right > 100) 292 right = 100; 293 if (!pslot->stereo) 294 right = left; 295 if (pslot->put_volume) 296 result = pslot->put_volume(fmixer, pslot, left, right); 297 if (result < 0) 298 return result; 299 pslot->volume[0] = left; 300 pslot->volume[1] = right; 301 return (left & 0xff) | ((right & 0xff) << 8); 302 } 303 304 static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg) 305 { 306 void __user *argp = (void __user *)arg; 307 int __user *p = argp; 308 int tmp; 309 310 if (snd_BUG_ON(!fmixer)) 311 return -ENXIO; 312 if (((cmd >> 8) & 0xff) == 'M') { 313 switch (cmd) { 314 case SOUND_MIXER_INFO: 315 return snd_mixer_oss_info(fmixer, argp); 316 case SOUND_OLD_MIXER_INFO: 317 return snd_mixer_oss_info_obsolete(fmixer, argp); 318 case SOUND_MIXER_WRITE_RECSRC: 319 if (get_user(tmp, p)) 320 return -EFAULT; 321 tmp = snd_mixer_oss_set_recsrc(fmixer, tmp); 322 if (tmp < 0) 323 return tmp; 324 return put_user(tmp, p); 325 case OSS_GETVERSION: 326 return put_user(SNDRV_OSS_VERSION, p); 327 case OSS_ALSAEMULVER: 328 return put_user(1, p); 329 case SOUND_MIXER_READ_DEVMASK: 330 tmp = snd_mixer_oss_devmask(fmixer); 331 if (tmp < 0) 332 return tmp; 333 return put_user(tmp, p); 334 case SOUND_MIXER_READ_STEREODEVS: 335 tmp = snd_mixer_oss_stereodevs(fmixer); 336 if (tmp < 0) 337 return tmp; 338 return put_user(tmp, p); 339 case SOUND_MIXER_READ_RECMASK: 340 tmp = snd_mixer_oss_recmask(fmixer); 341 if (tmp < 0) 342 return tmp; 343 return put_user(tmp, p); 344 case SOUND_MIXER_READ_CAPS: 345 tmp = snd_mixer_oss_caps(fmixer); 346 if (tmp < 0) 347 return tmp; 348 return put_user(tmp, p); 349 case SOUND_MIXER_READ_RECSRC: 350 tmp = snd_mixer_oss_get_recsrc(fmixer); 351 if (tmp < 0) 352 return tmp; 353 return put_user(tmp, p); 354 } 355 } 356 if (cmd & SIOC_IN) { 357 if (get_user(tmp, p)) 358 return -EFAULT; 359 tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp); 360 if (tmp < 0) 361 return tmp; 362 return put_user(tmp, p); 363 } else if (cmd & SIOC_OUT) { 364 tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff); 365 if (tmp < 0) 366 return tmp; 367 return put_user(tmp, p); 368 } 369 return -ENXIO; 370 } 371 372 static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 373 { 374 return snd_mixer_oss_ioctl1(file->private_data, cmd, arg); 375 } 376 377 int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg) 378 { 379 struct snd_mixer_oss_file fmixer; 380 381 if (snd_BUG_ON(!card)) 382 return -ENXIO; 383 if (card->mixer_oss == NULL) 384 return -ENXIO; 385 memset(&fmixer, 0, sizeof(fmixer)); 386 fmixer.card = card; 387 fmixer.mixer = card->mixer_oss; 388 return snd_mixer_oss_ioctl1(&fmixer, cmd, arg); 389 } 390 391 #ifdef CONFIG_COMPAT 392 /* all compatible */ 393 #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl 394 #else 395 #define snd_mixer_oss_ioctl_compat NULL 396 #endif 397 398 /* 399 * REGISTRATION PART 400 */ 401 402 static const struct file_operations snd_mixer_oss_f_ops = 403 { 404 .owner = THIS_MODULE, 405 .open = snd_mixer_oss_open, 406 .release = snd_mixer_oss_release, 407 .llseek = no_llseek, 408 .unlocked_ioctl = snd_mixer_oss_ioctl, 409 .compat_ioctl = snd_mixer_oss_ioctl_compat, 410 }; 411 412 /* 413 * utilities 414 */ 415 416 static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax) 417 { 418 long orange = omax - omin, nrange = nmax - nmin; 419 420 if (orange == 0) 421 return 0; 422 return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin; 423 } 424 425 /* convert from alsa native to oss values (0-100) */ 426 static long snd_mixer_oss_conv1(long val, long min, long max, int *old) 427 { 428 if (val == snd_mixer_oss_conv(*old, 0, 100, min, max)) 429 return *old; 430 return snd_mixer_oss_conv(val, min, max, 0, 100); 431 } 432 433 /* convert from oss to alsa native values */ 434 static long snd_mixer_oss_conv2(long val, long min, long max) 435 { 436 return snd_mixer_oss_conv(val, 0, 100, min, max); 437 } 438 439 #if 0 440 static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot) 441 { 442 struct snd_mixer_oss *mixer = card->mixer_oss; 443 if (mixer) 444 mixer->mask_recsrc |= 1 << slot; 445 } 446 447 static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot) 448 { 449 struct snd_mixer_oss *mixer = card->mixer_oss; 450 if (mixer && (mixer->mask_recsrc & (1 << slot))) 451 return 1; 452 return 0; 453 } 454 #endif 455 456 #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 457 458 #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 459 #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 460 #define SNDRV_MIXER_OSS_ITEM_GROUTE 2 461 #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 462 #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 463 #define SNDRV_MIXER_OSS_ITEM_PROUTE 5 464 #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 465 #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 466 #define SNDRV_MIXER_OSS_ITEM_CROUTE 8 467 #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 468 #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 469 470 #define SNDRV_MIXER_OSS_ITEM_COUNT 11 471 472 #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) 473 #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) 474 #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) 475 #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) 476 #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) 477 #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) 478 #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) 479 #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) 480 #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) 481 #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) 482 #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) 483 484 struct slot { 485 unsigned int signature; 486 unsigned int present; 487 unsigned int channels; 488 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; 489 unsigned int capture_item; 490 struct snd_mixer_oss_assign_table *assigned; 491 unsigned int allocated: 1; 492 }; 493 494 #define ID_UNKNOWN ((unsigned int)-1) 495 496 static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) 497 { 498 struct snd_card *card = mixer->card; 499 struct snd_ctl_elem_id id; 500 501 memset(&id, 0, sizeof(id)); 502 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 503 strlcpy(id.name, name, sizeof(id.name)); 504 id.index = index; 505 return snd_ctl_find_id(card, &id); 506 } 507 508 static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, 509 struct snd_mixer_oss_slot *pslot, 510 unsigned int numid, 511 int *left, int *right) 512 { 513 struct snd_ctl_elem_info *uinfo; 514 struct snd_ctl_elem_value *uctl; 515 struct snd_kcontrol *kctl; 516 struct snd_card *card = fmixer->card; 517 518 if (numid == ID_UNKNOWN) 519 return; 520 down_read(&card->controls_rwsem); 521 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 522 up_read(&card->controls_rwsem); 523 return; 524 } 525 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 526 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 527 if (uinfo == NULL || uctl == NULL) 528 goto __unalloc; 529 if (kctl->info(kctl, uinfo)) 530 goto __unalloc; 531 if (kctl->get(kctl, uctl)) 532 goto __unalloc; 533 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && 534 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) 535 goto __unalloc; 536 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); 537 if (uinfo->count > 1) 538 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); 539 __unalloc: 540 up_read(&card->controls_rwsem); 541 kfree(uctl); 542 kfree(uinfo); 543 } 544 545 static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, 546 struct snd_mixer_oss_slot *pslot, 547 unsigned int numid, 548 int *left, int *right, 549 int route) 550 { 551 struct snd_ctl_elem_info *uinfo; 552 struct snd_ctl_elem_value *uctl; 553 struct snd_kcontrol *kctl; 554 struct snd_card *card = fmixer->card; 555 556 if (numid == ID_UNKNOWN) 557 return; 558 down_read(&card->controls_rwsem); 559 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 560 up_read(&card->controls_rwsem); 561 return; 562 } 563 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 564 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 565 if (uinfo == NULL || uctl == NULL) 566 goto __unalloc; 567 if (kctl->info(kctl, uinfo)) 568 goto __unalloc; 569 if (kctl->get(kctl, uctl)) 570 goto __unalloc; 571 if (!uctl->value.integer.value[0]) { 572 *left = 0; 573 if (uinfo->count == 1) 574 *right = 0; 575 } 576 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) 577 *right = 0; 578 __unalloc: 579 up_read(&card->controls_rwsem); 580 kfree(uctl); 581 kfree(uinfo); 582 } 583 584 static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, 585 struct snd_mixer_oss_slot *pslot, 586 int *left, int *right) 587 { 588 struct slot *slot = pslot->private_data; 589 590 *left = *right = 100; 591 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { 592 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); 593 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { 594 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); 595 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { 596 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); 597 } 598 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { 599 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 600 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { 601 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 602 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { 603 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 604 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { 605 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 606 } 607 return 0; 608 } 609 610 static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, 611 struct snd_mixer_oss_slot *pslot, 612 unsigned int numid, 613 int left, int right) 614 { 615 struct snd_ctl_elem_info *uinfo; 616 struct snd_ctl_elem_value *uctl; 617 struct snd_kcontrol *kctl; 618 struct snd_card *card = fmixer->card; 619 int res; 620 621 if (numid == ID_UNKNOWN) 622 return; 623 down_read(&card->controls_rwsem); 624 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 625 up_read(&card->controls_rwsem); 626 return; 627 } 628 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 629 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 630 if (uinfo == NULL || uctl == NULL) 631 goto __unalloc; 632 if (kctl->info(kctl, uinfo)) 633 goto __unalloc; 634 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && 635 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) 636 goto __unalloc; 637 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); 638 if (uinfo->count > 1) 639 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); 640 if ((res = kctl->put(kctl, uctl)) < 0) 641 goto __unalloc; 642 if (res > 0) 643 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 644 __unalloc: 645 up_read(&card->controls_rwsem); 646 kfree(uctl); 647 kfree(uinfo); 648 } 649 650 static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, 651 struct snd_mixer_oss_slot *pslot, 652 unsigned int numid, 653 int left, int right, 654 int route) 655 { 656 struct snd_ctl_elem_info *uinfo; 657 struct snd_ctl_elem_value *uctl; 658 struct snd_kcontrol *kctl; 659 struct snd_card *card = fmixer->card; 660 int res; 661 662 if (numid == ID_UNKNOWN) 663 return; 664 down_read(&card->controls_rwsem); 665 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 666 up_read(&card->controls_rwsem); 667 return; 668 } 669 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 670 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 671 if (uinfo == NULL || uctl == NULL) 672 goto __unalloc; 673 if (kctl->info(kctl, uinfo)) 674 goto __unalloc; 675 if (uinfo->count > 1) { 676 uctl->value.integer.value[0] = left > 0 ? 1 : 0; 677 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; 678 if (route) { 679 uctl->value.integer.value[1] = 680 uctl->value.integer.value[2] = 0; 681 } 682 } else { 683 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; 684 } 685 if ((res = kctl->put(kctl, uctl)) < 0) 686 goto __unalloc; 687 if (res > 0) 688 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 689 __unalloc: 690 up_read(&card->controls_rwsem); 691 kfree(uctl); 692 kfree(uinfo); 693 } 694 695 static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, 696 struct snd_mixer_oss_slot *pslot, 697 int left, int right) 698 { 699 struct slot *slot = pslot->private_data; 700 701 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { 702 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); 703 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) 704 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); 705 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) { 706 snd_mixer_oss_put_volume1_vol(fmixer, pslot, 707 slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); 708 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { 709 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); 710 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { 711 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); 712 } 713 if (left || right) { 714 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) 715 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 716 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) 717 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0); 718 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) 719 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 720 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) 721 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 722 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) 723 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1); 724 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) 725 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 726 } else { 727 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { 728 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 729 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { 730 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0); 731 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { 732 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 733 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { 734 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 735 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { 736 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1); 737 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { 738 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 739 } 740 } 741 return 0; 742 } 743 744 static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, 745 struct snd_mixer_oss_slot *pslot, 746 int *active) 747 { 748 struct slot *slot = pslot->private_data; 749 int left, right; 750 751 left = right = 1; 752 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); 753 *active = (left || right) ? 1 : 0; 754 return 0; 755 } 756 757 static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, 758 struct snd_mixer_oss_slot *pslot, 759 int *active) 760 { 761 struct slot *slot = pslot->private_data; 762 int left, right; 763 764 left = right = 1; 765 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); 766 *active = (left || right) ? 1 : 0; 767 return 0; 768 } 769 770 static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, 771 struct snd_mixer_oss_slot *pslot, 772 int active) 773 { 774 struct slot *slot = pslot->private_data; 775 776 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); 777 return 0; 778 } 779 780 static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, 781 struct snd_mixer_oss_slot *pslot, 782 int active) 783 { 784 struct slot *slot = pslot->private_data; 785 786 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); 787 return 0; 788 } 789 790 static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) 791 { 792 struct snd_card *card = fmixer->card; 793 struct snd_mixer_oss *mixer = fmixer->mixer; 794 struct snd_kcontrol *kctl; 795 struct snd_mixer_oss_slot *pslot; 796 struct slot *slot; 797 struct snd_ctl_elem_info *uinfo; 798 struct snd_ctl_elem_value *uctl; 799 int err, idx; 800 801 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 802 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 803 if (uinfo == NULL || uctl == NULL) { 804 err = -ENOMEM; 805 goto __free_only; 806 } 807 down_read(&card->controls_rwsem); 808 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); 809 if (! kctl) { 810 err = -ENOENT; 811 goto __unlock; 812 } 813 if ((err = kctl->info(kctl, uinfo)) < 0) 814 goto __unlock; 815 if ((err = kctl->get(kctl, uctl)) < 0) 816 goto __unlock; 817 for (idx = 0; idx < 32; idx++) { 818 if (!(mixer->mask_recsrc & (1 << idx))) 819 continue; 820 pslot = &mixer->slots[idx]; 821 slot = pslot->private_data; 822 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) 823 continue; 824 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) 825 continue; 826 if (slot->capture_item == uctl->value.enumerated.item[0]) { 827 *active_index = idx; 828 break; 829 } 830 } 831 err = 0; 832 __unlock: 833 up_read(&card->controls_rwsem); 834 __free_only: 835 kfree(uctl); 836 kfree(uinfo); 837 return err; 838 } 839 840 static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) 841 { 842 struct snd_card *card = fmixer->card; 843 struct snd_mixer_oss *mixer = fmixer->mixer; 844 struct snd_kcontrol *kctl; 845 struct snd_mixer_oss_slot *pslot; 846 struct slot *slot = NULL; 847 struct snd_ctl_elem_info *uinfo; 848 struct snd_ctl_elem_value *uctl; 849 int err; 850 unsigned int idx; 851 852 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 853 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 854 if (uinfo == NULL || uctl == NULL) { 855 err = -ENOMEM; 856 goto __free_only; 857 } 858 down_read(&card->controls_rwsem); 859 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); 860 if (! kctl) { 861 err = -ENOENT; 862 goto __unlock; 863 } 864 if ((err = kctl->info(kctl, uinfo)) < 0) 865 goto __unlock; 866 for (idx = 0; idx < 32; idx++) { 867 if (!(mixer->mask_recsrc & (1 << idx))) 868 continue; 869 pslot = &mixer->slots[idx]; 870 slot = pslot->private_data; 871 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) 872 continue; 873 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) 874 continue; 875 if (idx == active_index) 876 break; 877 slot = NULL; 878 } 879 if (! slot) 880 goto __unlock; 881 for (idx = 0; idx < uinfo->count; idx++) 882 uctl->value.enumerated.item[idx] = slot->capture_item; 883 err = kctl->put(kctl, uctl); 884 if (err > 0) 885 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 886 err = 0; 887 __unlock: 888 up_read(&card->controls_rwsem); 889 __free_only: 890 kfree(uctl); 891 kfree(uinfo); 892 return err; 893 } 894 895 struct snd_mixer_oss_assign_table { 896 int oss_id; 897 const char *name; 898 int index; 899 }; 900 901 static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) 902 { 903 struct snd_ctl_elem_info *info; 904 struct snd_kcontrol *kcontrol; 905 struct snd_card *card = mixer->card; 906 int err; 907 908 down_read(&card->controls_rwsem); 909 kcontrol = snd_mixer_oss_test_id(mixer, name, index); 910 if (kcontrol == NULL) { 911 up_read(&card->controls_rwsem); 912 return 0; 913 } 914 info = kmalloc(sizeof(*info), GFP_KERNEL); 915 if (! info) { 916 up_read(&card->controls_rwsem); 917 return -ENOMEM; 918 } 919 if ((err = kcontrol->info(kcontrol, info)) < 0) { 920 up_read(&card->controls_rwsem); 921 kfree(info); 922 return err; 923 } 924 slot->numid[item] = kcontrol->id.numid; 925 up_read(&card->controls_rwsem); 926 if (info->count > slot->channels) 927 slot->channels = info->count; 928 slot->present |= 1 << item; 929 kfree(info); 930 return 0; 931 } 932 933 static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) 934 { 935 struct slot *p = chn->private_data; 936 if (p) { 937 if (p->allocated && p->assigned) { 938 kfree(p->assigned->name); 939 kfree(p->assigned); 940 } 941 kfree(p); 942 } 943 } 944 945 static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) 946 { 947 int idx = rslot->number; /* remember this */ 948 if (rslot->private_free) 949 rslot->private_free(rslot); 950 memset(rslot, 0, sizeof(*rslot)); 951 rslot->number = idx; 952 } 953 954 /* In a separate function to keep gcc 3.2 happy - do NOT merge this in 955 snd_mixer_oss_build_input! */ 956 static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer, 957 struct snd_mixer_oss_assign_table *ptr, 958 struct slot *slot) 959 { 960 char str[64]; 961 int err; 962 963 err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index, 964 SNDRV_MIXER_OSS_ITEM_GLOBAL); 965 if (err) 966 return err; 967 sprintf(str, "%s Switch", ptr->name); 968 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 969 SNDRV_MIXER_OSS_ITEM_GSWITCH); 970 if (err) 971 return err; 972 sprintf(str, "%s Route", ptr->name); 973 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 974 SNDRV_MIXER_OSS_ITEM_GROUTE); 975 if (err) 976 return err; 977 sprintf(str, "%s Volume", ptr->name); 978 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 979 SNDRV_MIXER_OSS_ITEM_GVOLUME); 980 if (err) 981 return err; 982 sprintf(str, "%s Playback Switch", ptr->name); 983 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 984 SNDRV_MIXER_OSS_ITEM_PSWITCH); 985 if (err) 986 return err; 987 sprintf(str, "%s Playback Route", ptr->name); 988 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 989 SNDRV_MIXER_OSS_ITEM_PROUTE); 990 if (err) 991 return err; 992 sprintf(str, "%s Playback Volume", ptr->name); 993 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 994 SNDRV_MIXER_OSS_ITEM_PVOLUME); 995 if (err) 996 return err; 997 sprintf(str, "%s Capture Switch", ptr->name); 998 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 999 SNDRV_MIXER_OSS_ITEM_CSWITCH); 1000 if (err) 1001 return err; 1002 sprintf(str, "%s Capture Route", ptr->name); 1003 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 1004 SNDRV_MIXER_OSS_ITEM_CROUTE); 1005 if (err) 1006 return err; 1007 sprintf(str, "%s Capture Volume", ptr->name); 1008 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 1009 SNDRV_MIXER_OSS_ITEM_CVOLUME); 1010 if (err) 1011 return err; 1012 1013 return 0; 1014 } 1015 1016 /* 1017 * build an OSS mixer element. 1018 * ptr_allocated means the entry is dynamically allocated (change via proc file). 1019 * when replace_old = 1, the old entry is replaced with the new one. 1020 */ 1021 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) 1022 { 1023 struct slot slot; 1024 struct slot *pslot; 1025 struct snd_kcontrol *kctl; 1026 struct snd_mixer_oss_slot *rslot; 1027 char str[64]; 1028 1029 /* check if already assigned */ 1030 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) 1031 return 0; 1032 1033 memset(&slot, 0, sizeof(slot)); 1034 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ 1035 if (snd_mixer_oss_build_test_all(mixer, ptr, &slot)) 1036 return 0; 1037 down_read(&mixer->card->controls_rwsem); 1038 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { 1039 struct snd_ctl_elem_info *uinfo; 1040 1041 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 1042 if (! uinfo) { 1043 up_read(&mixer->card->controls_rwsem); 1044 return -ENOMEM; 1045 } 1046 1047 if (kctl->info(kctl, uinfo)) { 1048 up_read(&mixer->card->controls_rwsem); 1049 kfree(uinfo); 1050 return 0; 1051 } 1052 strcpy(str, ptr->name); 1053 if (!strcmp(str, "Master")) 1054 strcpy(str, "Mix"); 1055 if (!strcmp(str, "Master Mono")) 1056 strcpy(str, "Mix Mono"); 1057 slot.capture_item = 0; 1058 if (!strcmp(uinfo->value.enumerated.name, str)) { 1059 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; 1060 } else { 1061 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { 1062 uinfo->value.enumerated.item = slot.capture_item; 1063 if (kctl->info(kctl, uinfo)) { 1064 up_read(&mixer->card->controls_rwsem); 1065 kfree(uinfo); 1066 return 0; 1067 } 1068 if (!strcmp(uinfo->value.enumerated.name, str)) { 1069 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; 1070 break; 1071 } 1072 } 1073 } 1074 kfree(uinfo); 1075 } 1076 up_read(&mixer->card->controls_rwsem); 1077 if (slot.present != 0) { 1078 pslot = kmalloc(sizeof(slot), GFP_KERNEL); 1079 if (! pslot) 1080 return -ENOMEM; 1081 *pslot = slot; 1082 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; 1083 pslot->assigned = ptr; 1084 pslot->allocated = ptr_allocated; 1085 rslot = &mixer->slots[ptr->oss_id]; 1086 mixer_slot_clear(rslot); 1087 rslot->stereo = slot.channels > 1 ? 1 : 0; 1088 rslot->get_volume = snd_mixer_oss_get_volume1; 1089 rslot->put_volume = snd_mixer_oss_put_volume1; 1090 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ 1091 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { 1092 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; 1093 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; 1094 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { 1095 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; 1096 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; 1097 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { 1098 mixer->mask_recsrc |= 1 << ptr->oss_id; 1099 } 1100 rslot->private_data = pslot; 1101 rslot->private_free = snd_mixer_oss_slot_free; 1102 return 1; 1103 } 1104 return 0; 1105 } 1106 1107 #ifdef CONFIG_PROC_FS 1108 /* 1109 */ 1110 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name 1111 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { 1112 MIXER_VOL(VOLUME), 1113 MIXER_VOL(BASS), 1114 MIXER_VOL(TREBLE), 1115 MIXER_VOL(SYNTH), 1116 MIXER_VOL(PCM), 1117 MIXER_VOL(SPEAKER), 1118 MIXER_VOL(LINE), 1119 MIXER_VOL(MIC), 1120 MIXER_VOL(CD), 1121 MIXER_VOL(IMIX), 1122 MIXER_VOL(ALTPCM), 1123 MIXER_VOL(RECLEV), 1124 MIXER_VOL(IGAIN), 1125 MIXER_VOL(OGAIN), 1126 MIXER_VOL(LINE1), 1127 MIXER_VOL(LINE2), 1128 MIXER_VOL(LINE3), 1129 MIXER_VOL(DIGITAL1), 1130 MIXER_VOL(DIGITAL2), 1131 MIXER_VOL(DIGITAL3), 1132 MIXER_VOL(PHONEIN), 1133 MIXER_VOL(PHONEOUT), 1134 MIXER_VOL(VIDEO), 1135 MIXER_VOL(RADIO), 1136 MIXER_VOL(MONITOR), 1137 }; 1138 1139 /* 1140 * /proc interface 1141 */ 1142 1143 static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, 1144 struct snd_info_buffer *buffer) 1145 { 1146 struct snd_mixer_oss *mixer = entry->private_data; 1147 int i; 1148 1149 mutex_lock(&mixer->reg_mutex); 1150 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { 1151 struct slot *p; 1152 1153 if (! oss_mixer_names[i]) 1154 continue; 1155 p = (struct slot *)mixer->slots[i].private_data; 1156 snd_iprintf(buffer, "%s ", oss_mixer_names[i]); 1157 if (p && p->assigned) 1158 snd_iprintf(buffer, "\"%s\" %d\n", 1159 p->assigned->name, 1160 p->assigned->index); 1161 else 1162 snd_iprintf(buffer, "\"\" 0\n"); 1163 } 1164 mutex_unlock(&mixer->reg_mutex); 1165 } 1166 1167 static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, 1168 struct snd_info_buffer *buffer) 1169 { 1170 struct snd_mixer_oss *mixer = entry->private_data; 1171 char line[128], str[32], idxstr[16]; 1172 const char *cptr; 1173 int ch, idx; 1174 struct snd_mixer_oss_assign_table *tbl; 1175 struct slot *slot; 1176 1177 while (!snd_info_get_line(buffer, line, sizeof(line))) { 1178 cptr = snd_info_get_str(str, line, sizeof(str)); 1179 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) 1180 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) 1181 break; 1182 if (ch >= SNDRV_OSS_MAX_MIXERS) { 1183 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); 1184 continue; 1185 } 1186 cptr = snd_info_get_str(str, cptr, sizeof(str)); 1187 if (! *str) { 1188 /* remove the entry */ 1189 mutex_lock(&mixer->reg_mutex); 1190 mixer_slot_clear(&mixer->slots[ch]); 1191 mutex_unlock(&mixer->reg_mutex); 1192 continue; 1193 } 1194 snd_info_get_str(idxstr, cptr, sizeof(idxstr)); 1195 idx = simple_strtoul(idxstr, NULL, 10); 1196 if (idx >= 0x4000) { /* too big */ 1197 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); 1198 continue; 1199 } 1200 mutex_lock(&mixer->reg_mutex); 1201 slot = (struct slot *)mixer->slots[ch].private_data; 1202 if (slot && slot->assigned && 1203 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) 1204 /* not changed */ 1205 goto __unlock; 1206 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); 1207 if (! tbl) { 1208 snd_printk(KERN_ERR "mixer_oss: no memory\n"); 1209 goto __unlock; 1210 } 1211 tbl->oss_id = ch; 1212 tbl->name = kstrdup(str, GFP_KERNEL); 1213 if (! tbl->name) { 1214 kfree(tbl); 1215 goto __unlock; 1216 } 1217 tbl->index = idx; 1218 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { 1219 kfree(tbl->name); 1220 kfree(tbl); 1221 } 1222 __unlock: 1223 mutex_unlock(&mixer->reg_mutex); 1224 } 1225 } 1226 1227 static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) 1228 { 1229 struct snd_info_entry *entry; 1230 1231 entry = snd_info_create_card_entry(mixer->card, "oss_mixer", 1232 mixer->card->proc_root); 1233 if (! entry) 1234 return; 1235 entry->content = SNDRV_INFO_CONTENT_TEXT; 1236 entry->mode = S_IFREG | S_IRUGO | S_IWUSR; 1237 entry->c.text.read = snd_mixer_oss_proc_read; 1238 entry->c.text.write = snd_mixer_oss_proc_write; 1239 entry->private_data = mixer; 1240 if (snd_info_register(entry) < 0) { 1241 snd_info_free_entry(entry); 1242 entry = NULL; 1243 } 1244 mixer->proc_entry = entry; 1245 } 1246 1247 static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) 1248 { 1249 snd_info_free_entry(mixer->proc_entry); 1250 mixer->proc_entry = NULL; 1251 } 1252 #else /* !CONFIG_PROC_FS */ 1253 #define snd_mixer_oss_proc_init(mix) 1254 #define snd_mixer_oss_proc_done(mix) 1255 #endif /* CONFIG_PROC_FS */ 1256 1257 static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) 1258 { 1259 static struct snd_mixer_oss_assign_table table[] = { 1260 { SOUND_MIXER_VOLUME, "Master", 0 }, 1261 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ 1262 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, 1263 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, 1264 { SOUND_MIXER_SYNTH, "Synth", 0 }, 1265 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ 1266 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ 1267 { SOUND_MIXER_PCM, "PCM", 0 }, 1268 { SOUND_MIXER_SPEAKER, "Beep", 0 }, 1269 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */ 1270 { SOUND_MIXER_SPEAKER, "Speaker", 0 }, /* fallback */ 1271 { SOUND_MIXER_LINE, "Line", 0 }, 1272 { SOUND_MIXER_MIC, "Mic", 0 }, 1273 { SOUND_MIXER_CD, "CD", 0 }, 1274 { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, 1275 { SOUND_MIXER_ALTPCM, "PCM", 1 }, 1276 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ 1277 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ 1278 { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, 1279 { SOUND_MIXER_IGAIN, "Capture", 0 }, 1280 { SOUND_MIXER_OGAIN, "Playback", 0 }, 1281 { SOUND_MIXER_LINE1, "Aux", 0 }, 1282 { SOUND_MIXER_LINE2, "Aux", 1 }, 1283 { SOUND_MIXER_LINE3, "Aux", 2 }, 1284 { SOUND_MIXER_DIGITAL1, "Digital", 0 }, 1285 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ 1286 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ 1287 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ 1288 { SOUND_MIXER_DIGITAL2, "Digital", 1 }, 1289 { SOUND_MIXER_DIGITAL3, "Digital", 2 }, 1290 { SOUND_MIXER_PHONEIN, "Phone", 0 }, 1291 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, 1292 { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/ 1293 { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/ 1294 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ 1295 { SOUND_MIXER_VIDEO, "Video", 0 }, 1296 { SOUND_MIXER_RADIO, "Radio", 0 }, 1297 { SOUND_MIXER_MONITOR, "Monitor", 0 } 1298 }; 1299 unsigned int idx; 1300 1301 for (idx = 0; idx < ARRAY_SIZE(table); idx++) 1302 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); 1303 if (mixer->mask_recsrc) { 1304 mixer->get_recsrc = snd_mixer_oss_get_recsrc2; 1305 mixer->put_recsrc = snd_mixer_oss_put_recsrc2; 1306 } 1307 } 1308 1309 /* 1310 * 1311 */ 1312 1313 static int snd_mixer_oss_free1(void *private) 1314 { 1315 struct snd_mixer_oss *mixer = private; 1316 struct snd_card *card; 1317 int idx; 1318 1319 if (!mixer) 1320 return 0; 1321 card = mixer->card; 1322 if (snd_BUG_ON(mixer != card->mixer_oss)) 1323 return -ENXIO; 1324 card->mixer_oss = NULL; 1325 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { 1326 struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; 1327 if (chn->private_free) 1328 chn->private_free(chn); 1329 } 1330 kfree(mixer); 1331 return 0; 1332 } 1333 1334 static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) 1335 { 1336 struct snd_mixer_oss *mixer; 1337 1338 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { 1339 char name[128]; 1340 int idx, err; 1341 1342 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); 1343 if (mixer == NULL) 1344 return -ENOMEM; 1345 mutex_init(&mixer->reg_mutex); 1346 sprintf(name, "mixer%i%i", card->number, 0); 1347 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, 1348 card, 0, 1349 &snd_mixer_oss_f_ops, card, 1350 name)) < 0) { 1351 snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", 1352 card->number, 0); 1353 kfree(mixer); 1354 return err; 1355 } 1356 mixer->oss_dev_alloc = 1; 1357 mixer->card = card; 1358 if (*card->mixername) 1359 strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); 1360 else 1361 strlcpy(mixer->name, name, sizeof(mixer->name)); 1362 #ifdef SNDRV_OSS_INFO_DEV_MIXERS 1363 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, 1364 card->number, 1365 mixer->name); 1366 #endif 1367 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) 1368 mixer->slots[idx].number = idx; 1369 card->mixer_oss = mixer; 1370 snd_mixer_oss_build(mixer); 1371 snd_mixer_oss_proc_init(mixer); 1372 } else { 1373 mixer = card->mixer_oss; 1374 if (mixer == NULL) 1375 return 0; 1376 if (mixer->oss_dev_alloc) { 1377 #ifdef SNDRV_OSS_INFO_DEV_MIXERS 1378 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); 1379 #endif 1380 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); 1381 mixer->oss_dev_alloc = 0; 1382 } 1383 if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) 1384 return 0; 1385 snd_mixer_oss_proc_done(mixer); 1386 return snd_mixer_oss_free1(mixer); 1387 } 1388 return 0; 1389 } 1390 1391 static int __init alsa_mixer_oss_init(void) 1392 { 1393 int idx; 1394 1395 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; 1396 for (idx = 0; idx < SNDRV_CARDS; idx++) { 1397 if (snd_cards[idx]) 1398 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); 1399 } 1400 return 0; 1401 } 1402 1403 static void __exit alsa_mixer_oss_exit(void) 1404 { 1405 int idx; 1406 1407 snd_mixer_oss_notify_callback = NULL; 1408 for (idx = 0; idx < SNDRV_CARDS; idx++) { 1409 if (snd_cards[idx]) 1410 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE); 1411 } 1412 } 1413 1414 module_init(alsa_mixer_oss_init) 1415 module_exit(alsa_mixer_oss_exit) 1416 1417 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); 1418