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