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 35MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 36MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); 37MODULE_LICENSE("GPL"); 38MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); 39 40static 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 75static 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 88static 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 104static 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 119static 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 131static 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 147static 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 163static 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 184static 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 212static 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 249static 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 276static 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 301static 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 369static 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 374int 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 399static 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 413static 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) */ 423static 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 */ 431static long snd_mixer_oss_conv2(long val, long min, long max) 432{ 433 return snd_mixer_oss_conv(val, 0, 100, min, max); 434} 435 436 437#define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 438 439#define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 440#define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 441#define SNDRV_MIXER_OSS_ITEM_GROUTE 2 442#define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 443#define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 444#define SNDRV_MIXER_OSS_ITEM_PROUTE 5 445#define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 446#define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 447#define SNDRV_MIXER_OSS_ITEM_CROUTE 8 448#define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 449#define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 450 451#define SNDRV_MIXER_OSS_ITEM_COUNT 11 452 453#define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) 454#define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) 455#define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) 456#define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) 457#define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) 458#define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) 459#define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) 460#define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) 461#define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) 462#define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) 463#define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) 464 465struct slot { 466 unsigned int signature; 467 unsigned int present; 468 unsigned int channels; 469 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; 470 unsigned int capture_item; 471 struct snd_mixer_oss_assign_table *assigned; 472 unsigned int allocated: 1; 473}; 474 475#define ID_UNKNOWN ((unsigned int)-1) 476 477static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) 478{ 479 struct snd_card *card = mixer->card; 480 struct snd_ctl_elem_id id; 481 482 memset(&id, 0, sizeof(id)); 483 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; 484 strcpy(id.name, name); 485 id.index = index; 486 return snd_ctl_find_id(card, &id); 487} 488 489static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, 490 struct snd_mixer_oss_slot *pslot, 491 unsigned int numid, 492 int *left, int *right) 493{ 494 struct snd_ctl_elem_info *uinfo; 495 struct snd_ctl_elem_value *uctl; 496 struct snd_kcontrol *kctl; 497 struct snd_card *card = fmixer->card; 498 499 if (numid == ID_UNKNOWN) 500 return; 501 down_read(&card->controls_rwsem); 502 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 503 up_read(&card->controls_rwsem); 504 return; 505 } 506 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 507 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 508 if (uinfo == NULL || uctl == NULL) 509 goto __unalloc; 510 if (kctl->info(kctl, uinfo)) 511 goto __unalloc; 512 if (kctl->get(kctl, uctl)) 513 goto __unalloc; 514 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && 515 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) 516 goto __unalloc; 517 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); 518 if (uinfo->count > 1) 519 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); 520 __unalloc: 521 up_read(&card->controls_rwsem); 522 kfree(uctl); 523 kfree(uinfo); 524} 525 526static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, 527 struct snd_mixer_oss_slot *pslot, 528 unsigned int numid, 529 int *left, int *right, 530 int route) 531{ 532 struct snd_ctl_elem_info *uinfo; 533 struct snd_ctl_elem_value *uctl; 534 struct snd_kcontrol *kctl; 535 struct snd_card *card = fmixer->card; 536 537 if (numid == ID_UNKNOWN) 538 return; 539 down_read(&card->controls_rwsem); 540 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 541 up_read(&card->controls_rwsem); 542 return; 543 } 544 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 545 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 546 if (uinfo == NULL || uctl == NULL) 547 goto __unalloc; 548 if (kctl->info(kctl, uinfo)) 549 goto __unalloc; 550 if (kctl->get(kctl, uctl)) 551 goto __unalloc; 552 if (!uctl->value.integer.value[0]) { 553 *left = 0; 554 if (uinfo->count == 1) 555 *right = 0; 556 } 557 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) 558 *right = 0; 559 __unalloc: 560 up_read(&card->controls_rwsem); 561 kfree(uctl); 562 kfree(uinfo); 563} 564 565static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, 566 struct snd_mixer_oss_slot *pslot, 567 int *left, int *right) 568{ 569 struct slot *slot = (struct slot *)pslot->private_data; 570 571 *left = *right = 100; 572 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { 573 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); 574 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { 575 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); 576 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { 577 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); 578 } 579 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { 580 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 581 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { 582 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 583 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { 584 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 585 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { 586 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 587 } 588 return 0; 589} 590 591static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, 592 struct snd_mixer_oss_slot *pslot, 593 unsigned int numid, 594 int left, int right) 595{ 596 struct snd_ctl_elem_info *uinfo; 597 struct snd_ctl_elem_value *uctl; 598 struct snd_kcontrol *kctl; 599 struct snd_card *card = fmixer->card; 600 int res; 601 602 if (numid == ID_UNKNOWN) 603 return; 604 down_read(&card->controls_rwsem); 605 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 606 up_read(&card->controls_rwsem); 607 return; 608 } 609 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 610 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 611 if (uinfo == NULL || uctl == NULL) 612 goto __unalloc; 613 if (kctl->info(kctl, uinfo)) 614 goto __unalloc; 615 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && 616 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) 617 goto __unalloc; 618 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); 619 if (uinfo->count > 1) 620 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); 621 if ((res = kctl->put(kctl, uctl)) < 0) 622 goto __unalloc; 623 if (res > 0) 624 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 625 __unalloc: 626 up_read(&card->controls_rwsem); 627 kfree(uctl); 628 kfree(uinfo); 629} 630 631static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, 632 struct snd_mixer_oss_slot *pslot, 633 unsigned int numid, 634 int left, int right, 635 int route) 636{ 637 struct snd_ctl_elem_info *uinfo; 638 struct snd_ctl_elem_value *uctl; 639 struct snd_kcontrol *kctl; 640 struct snd_card *card = fmixer->card; 641 int res; 642 643 if (numid == ID_UNKNOWN) 644 return; 645 down_read(&card->controls_rwsem); 646 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { 647 up_read(&card->controls_rwsem); 648 return; 649 } 650 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 651 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 652 if (uinfo == NULL || uctl == NULL) 653 goto __unalloc; 654 if (kctl->info(kctl, uinfo)) 655 goto __unalloc; 656 if (uinfo->count > 1) { 657 uctl->value.integer.value[0] = left > 0 ? 1 : 0; 658 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; 659 if (route) { 660 uctl->value.integer.value[1] = 661 uctl->value.integer.value[2] = 0; 662 } 663 } else { 664 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; 665 } 666 if ((res = kctl->put(kctl, uctl)) < 0) 667 goto __unalloc; 668 if (res > 0) 669 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 670 __unalloc: 671 up_read(&card->controls_rwsem); 672 kfree(uctl); 673 kfree(uinfo); 674} 675 676static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, 677 struct snd_mixer_oss_slot *pslot, 678 int left, int right) 679{ 680 struct slot *slot = (struct slot *)pslot->private_data; 681 682 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { 683 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); 684 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) 685 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); 686 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) { 687 snd_mixer_oss_put_volume1_vol(fmixer, pslot, 688 slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); 689 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { 690 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); 691 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { 692 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); 693 } 694 if (left || right) { 695 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) 696 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); 697 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) 698 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0); 699 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) 700 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 701 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) 702 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 703 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) 704 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], 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_CSWITCH) { 711 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0); 712 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { 713 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); 714 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { 715 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); 716 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { 717 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1); 718 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { 719 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); 720 } 721 } 722 return 0; 723} 724 725static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, 726 struct snd_mixer_oss_slot *pslot, 727 int *active) 728{ 729 struct slot *slot = (struct slot *)pslot->private_data; 730 int left, right; 731 732 left = right = 1; 733 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); 734 *active = (left || right) ? 1 : 0; 735 return 0; 736} 737 738static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, 739 struct snd_mixer_oss_slot *pslot, 740 int *active) 741{ 742 struct slot *slot = (struct slot *)pslot->private_data; 743 int left, right; 744 745 left = right = 1; 746 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); 747 *active = (left || right) ? 1 : 0; 748 return 0; 749} 750 751static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, 752 struct snd_mixer_oss_slot *pslot, 753 int active) 754{ 755 struct slot *slot = (struct slot *)pslot->private_data; 756 757 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); 758 return 0; 759} 760 761static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, 762 struct snd_mixer_oss_slot *pslot, 763 int active) 764{ 765 struct slot *slot = (struct slot *)pslot->private_data; 766 767 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); 768 return 0; 769} 770 771static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) 772{ 773 struct snd_card *card = fmixer->card; 774 struct snd_mixer_oss *mixer = fmixer->mixer; 775 struct snd_kcontrol *kctl; 776 struct snd_mixer_oss_slot *pslot; 777 struct slot *slot; 778 struct snd_ctl_elem_info *uinfo; 779 struct snd_ctl_elem_value *uctl; 780 int err, idx; 781 782 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 783 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 784 if (uinfo == NULL || uctl == NULL) { 785 err = -ENOMEM; 786 goto __free_only; 787 } 788 down_read(&card->controls_rwsem); 789 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); 790 if (! kctl) { 791 err = -ENOENT; 792 goto __unlock; 793 } 794 if ((err = kctl->info(kctl, uinfo)) < 0) 795 goto __unlock; 796 if ((err = kctl->get(kctl, uctl)) < 0) 797 goto __unlock; 798 for (idx = 0; idx < 32; idx++) { 799 if (!(mixer->mask_recsrc & (1 << idx))) 800 continue; 801 pslot = &mixer->slots[idx]; 802 slot = (struct slot *)pslot->private_data; 803 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) 804 continue; 805 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) 806 continue; 807 if (slot->capture_item == uctl->value.enumerated.item[0]) { 808 *active_index = idx; 809 break; 810 } 811 } 812 err = 0; 813 __unlock: 814 up_read(&card->controls_rwsem); 815 __free_only: 816 kfree(uctl); 817 kfree(uinfo); 818 return err; 819} 820 821static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) 822{ 823 struct snd_card *card = fmixer->card; 824 struct snd_mixer_oss *mixer = fmixer->mixer; 825 struct snd_kcontrol *kctl; 826 struct snd_mixer_oss_slot *pslot; 827 struct slot *slot = NULL; 828 struct snd_ctl_elem_info *uinfo; 829 struct snd_ctl_elem_value *uctl; 830 int err; 831 unsigned int idx; 832 833 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 834 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); 835 if (uinfo == NULL || uctl == NULL) { 836 err = -ENOMEM; 837 goto __free_only; 838 } 839 down_read(&card->controls_rwsem); 840 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); 841 if (! kctl) { 842 err = -ENOENT; 843 goto __unlock; 844 } 845 if ((err = kctl->info(kctl, uinfo)) < 0) 846 goto __unlock; 847 for (idx = 0; idx < 32; idx++) { 848 if (!(mixer->mask_recsrc & (1 << idx))) 849 continue; 850 pslot = &mixer->slots[idx]; 851 slot = (struct slot *)pslot->private_data; 852 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) 853 continue; 854 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) 855 continue; 856 if (idx == active_index) 857 break; 858 slot = NULL; 859 } 860 if (! slot) 861 goto __unlock; 862 for (idx = 0; idx < uinfo->count; idx++) 863 uctl->value.enumerated.item[idx] = slot->capture_item; 864 err = kctl->put(kctl, uctl); 865 if (err > 0) 866 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); 867 err = 0; 868 __unlock: 869 up_read(&card->controls_rwsem); 870 __free_only: 871 kfree(uctl); 872 kfree(uinfo); 873 return err; 874} 875 876struct snd_mixer_oss_assign_table { 877 int oss_id; 878 const char *name; 879 int index; 880}; 881 882static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) 883{ 884 struct snd_ctl_elem_info *info; 885 struct snd_kcontrol *kcontrol; 886 struct snd_card *card = mixer->card; 887 int err; 888 889 down_read(&card->controls_rwsem); 890 kcontrol = snd_mixer_oss_test_id(mixer, name, index); 891 if (kcontrol == NULL) { 892 up_read(&card->controls_rwsem); 893 return 0; 894 } 895 info = kmalloc(sizeof(*info), GFP_KERNEL); 896 if (! info) { 897 up_read(&card->controls_rwsem); 898 return -ENOMEM; 899 } 900 if ((err = kcontrol->info(kcontrol, info)) < 0) { 901 up_read(&card->controls_rwsem); 902 kfree(info); 903 return err; 904 } 905 slot->numid[item] = kcontrol->id.numid; 906 up_read(&card->controls_rwsem); 907 if (info->count > slot->channels) 908 slot->channels = info->count; 909 slot->present |= 1 << item; 910 kfree(info); 911 return 0; 912} 913 914static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) 915{ 916 struct slot *p = (struct slot *)chn->private_data; 917 if (p) { 918 if (p->allocated && p->assigned) { 919 kfree(p->assigned->name); 920 kfree(p->assigned); 921 } 922 kfree(p); 923 } 924} 925 926static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) 927{ 928 int idx = rslot->number; /* remember this */ 929 if (rslot->private_free) 930 rslot->private_free(rslot); 931 memset(rslot, 0, sizeof(*rslot)); 932 rslot->number = idx; 933} 934 935/* In a separate function to keep gcc 3.2 happy - do NOT merge this in 936 snd_mixer_oss_build_input! */ 937static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer, 938 struct snd_mixer_oss_assign_table *ptr, 939 struct slot *slot) 940{ 941 char str[64]; 942 int err; 943 944 err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index, 945 SNDRV_MIXER_OSS_ITEM_GLOBAL); 946 if (err) 947 return err; 948 sprintf(str, "%s Switch", ptr->name); 949 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 950 SNDRV_MIXER_OSS_ITEM_GSWITCH); 951 if (err) 952 return err; 953 sprintf(str, "%s Route", ptr->name); 954 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 955 SNDRV_MIXER_OSS_ITEM_GROUTE); 956 if (err) 957 return err; 958 sprintf(str, "%s Volume", ptr->name); 959 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 960 SNDRV_MIXER_OSS_ITEM_GVOLUME); 961 if (err) 962 return err; 963 sprintf(str, "%s Playback Switch", ptr->name); 964 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 965 SNDRV_MIXER_OSS_ITEM_PSWITCH); 966 if (err) 967 return err; 968 sprintf(str, "%s Playback Route", ptr->name); 969 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 970 SNDRV_MIXER_OSS_ITEM_PROUTE); 971 if (err) 972 return err; 973 sprintf(str, "%s Playback Volume", ptr->name); 974 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 975 SNDRV_MIXER_OSS_ITEM_PVOLUME); 976 if (err) 977 return err; 978 sprintf(str, "%s Capture Switch", ptr->name); 979 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 980 SNDRV_MIXER_OSS_ITEM_CSWITCH); 981 if (err) 982 return err; 983 sprintf(str, "%s Capture Route", ptr->name); 984 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 985 SNDRV_MIXER_OSS_ITEM_CROUTE); 986 if (err) 987 return err; 988 sprintf(str, "%s Capture Volume", ptr->name); 989 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, 990 SNDRV_MIXER_OSS_ITEM_CVOLUME); 991 if (err) 992 return err; 993 994 return 0; 995} 996 997/* 998 * build an OSS mixer element. 999 * ptr_allocated means the entry is dynamically allocated (change via proc file). 1000 * when replace_old = 1, the old entry is replaced with the new one. 1001 */ 1002static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mixer_oss_assign_table *ptr, int ptr_allocated, int replace_old) 1003{ 1004 struct slot slot; 1005 struct slot *pslot; 1006 struct snd_kcontrol *kctl; 1007 struct snd_mixer_oss_slot *rslot; 1008 char str[64]; 1009 1010 /* check if already assigned */ 1011 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) 1012 return 0; 1013 1014 memset(&slot, 0, sizeof(slot)); 1015 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ 1016 if (snd_mixer_oss_build_test_all(mixer, ptr, &slot)) 1017 return 0; 1018 down_read(&mixer->card->controls_rwsem); 1019 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { 1020 struct snd_ctl_elem_info *uinfo; 1021 1022 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); 1023 if (! uinfo) { 1024 up_read(&mixer->card->controls_rwsem); 1025 return -ENOMEM; 1026 } 1027 1028 if (kctl->info(kctl, uinfo)) { 1029 up_read(&mixer->card->controls_rwsem); 1030 return 0; 1031 } 1032 strcpy(str, ptr->name); 1033 if (!strcmp(str, "Master")) 1034 strcpy(str, "Mix"); 1035 if (!strcmp(str, "Master Mono")) 1036 strcpy(str, "Mix Mono"); 1037 slot.capture_item = 0; 1038 if (!strcmp(uinfo->value.enumerated.name, str)) { 1039 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; 1040 } else { 1041 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { 1042 uinfo->value.enumerated.item = slot.capture_item; 1043 if (kctl->info(kctl, uinfo)) { 1044 up_read(&mixer->card->controls_rwsem); 1045 return 0; 1046 } 1047 if (!strcmp(uinfo->value.enumerated.name, str)) { 1048 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; 1049 break; 1050 } 1051 } 1052 } 1053 kfree(uinfo); 1054 } 1055 up_read(&mixer->card->controls_rwsem); 1056 if (slot.present != 0) { 1057 pslot = kmalloc(sizeof(slot), GFP_KERNEL); 1058 if (! pslot) 1059 return -ENOMEM; 1060 *pslot = slot; 1061 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; 1062 pslot->assigned = ptr; 1063 pslot->allocated = ptr_allocated; 1064 rslot = &mixer->slots[ptr->oss_id]; 1065 mixer_slot_clear(rslot); 1066 rslot->stereo = slot.channels > 1 ? 1 : 0; 1067 rslot->get_volume = snd_mixer_oss_get_volume1; 1068 rslot->put_volume = snd_mixer_oss_put_volume1; 1069 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ 1070 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { 1071 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; 1072 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; 1073 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { 1074 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; 1075 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; 1076 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { 1077 mixer->mask_recsrc |= 1 << ptr->oss_id; 1078 } 1079 rslot->private_data = pslot; 1080 rslot->private_free = snd_mixer_oss_slot_free; 1081 return 1; 1082 } 1083 return 0; 1084} 1085 1086#ifdef CONFIG_PROC_FS 1087/* 1088 */ 1089#define MIXER_VOL(name) [SOUND_MIXER_##name] = #name 1090static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { 1091 MIXER_VOL(VOLUME), 1092 MIXER_VOL(BASS), 1093 MIXER_VOL(TREBLE), 1094 MIXER_VOL(SYNTH), 1095 MIXER_VOL(PCM), 1096 MIXER_VOL(SPEAKER), 1097 MIXER_VOL(LINE), 1098 MIXER_VOL(MIC), 1099 MIXER_VOL(CD), 1100 MIXER_VOL(IMIX), 1101 MIXER_VOL(ALTPCM), 1102 MIXER_VOL(RECLEV), 1103 MIXER_VOL(IGAIN), 1104 MIXER_VOL(OGAIN), 1105 MIXER_VOL(LINE1), 1106 MIXER_VOL(LINE2), 1107 MIXER_VOL(LINE3), 1108 MIXER_VOL(DIGITAL1), 1109 MIXER_VOL(DIGITAL2), 1110 MIXER_VOL(DIGITAL3), 1111 MIXER_VOL(PHONEIN), 1112 MIXER_VOL(PHONEOUT), 1113 MIXER_VOL(VIDEO), 1114 MIXER_VOL(RADIO), 1115 MIXER_VOL(MONITOR), 1116}; 1117 1118/* 1119 * /proc interface 1120 */ 1121 1122static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, 1123 struct snd_info_buffer *buffer) 1124{ 1125 struct snd_mixer_oss *mixer = entry->private_data; 1126 int i; 1127 1128 mutex_lock(&mixer->reg_mutex); 1129 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { 1130 struct slot *p; 1131 1132 if (! oss_mixer_names[i]) 1133 continue; 1134 p = (struct slot *)mixer->slots[i].private_data; 1135 snd_iprintf(buffer, "%s ", oss_mixer_names[i]); 1136 if (p && p->assigned) 1137 snd_iprintf(buffer, "\"%s\" %d\n", 1138 p->assigned->name, 1139 p->assigned->index); 1140 else 1141 snd_iprintf(buffer, "\"\" 0\n"); 1142 } 1143 mutex_unlock(&mixer->reg_mutex); 1144} 1145 1146static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, 1147 struct snd_info_buffer *buffer) 1148{ 1149 struct snd_mixer_oss *mixer = entry->private_data; 1150 char line[128], str[32], idxstr[16]; 1151 const char *cptr; 1152 int ch, idx; 1153 struct snd_mixer_oss_assign_table *tbl; 1154 struct slot *slot; 1155 1156 while (!snd_info_get_line(buffer, line, sizeof(line))) { 1157 cptr = snd_info_get_str(str, line, sizeof(str)); 1158 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) 1159 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) 1160 break; 1161 if (ch >= SNDRV_OSS_MAX_MIXERS) { 1162 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); 1163 continue; 1164 } 1165 cptr = snd_info_get_str(str, cptr, sizeof(str)); 1166 if (! *str) { 1167 /* remove the entry */ 1168 mutex_lock(&mixer->reg_mutex); 1169 mixer_slot_clear(&mixer->slots[ch]); 1170 mutex_unlock(&mixer->reg_mutex); 1171 continue; 1172 } 1173 snd_info_get_str(idxstr, cptr, sizeof(idxstr)); 1174 idx = simple_strtoul(idxstr, NULL, 10); 1175 if (idx >= 0x4000) { /* too big */ 1176 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); 1177 continue; 1178 } 1179 mutex_lock(&mixer->reg_mutex); 1180 slot = (struct slot *)mixer->slots[ch].private_data; 1181 if (slot && slot->assigned && 1182 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) 1183 /* not changed */ 1184 goto __unlock; 1185 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); 1186 if (! tbl) { 1187 snd_printk(KERN_ERR "mixer_oss: no memory\n"); 1188 goto __unlock; 1189 } 1190 tbl->oss_id = ch; 1191 tbl->name = kstrdup(str, GFP_KERNEL); 1192 if (! tbl->name) { 1193 kfree(tbl); 1194 goto __unlock; 1195 } 1196 tbl->index = idx; 1197 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { 1198 kfree(tbl->name); 1199 kfree(tbl); 1200 } 1201 __unlock: 1202 mutex_unlock(&mixer->reg_mutex); 1203 } 1204} 1205 1206static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) 1207{ 1208 struct snd_info_entry *entry; 1209 1210 entry = snd_info_create_card_entry(mixer->card, "oss_mixer", 1211 mixer->card->proc_root); 1212 if (! entry) 1213 return; 1214 entry->content = SNDRV_INFO_CONTENT_TEXT; 1215 entry->mode = S_IFREG | S_IRUGO | S_IWUSR; 1216 entry->c.text.read = snd_mixer_oss_proc_read; 1217 entry->c.text.write = snd_mixer_oss_proc_write; 1218 entry->private_data = mixer; 1219 if (snd_info_register(entry) < 0) { 1220 snd_info_free_entry(entry); 1221 entry = NULL; 1222 } 1223 mixer->proc_entry = entry; 1224} 1225 1226static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) 1227{ 1228 snd_info_free_entry(mixer->proc_entry); 1229 mixer->proc_entry = NULL; 1230} 1231#else /* !CONFIG_PROC_FS */ 1232#define snd_mixer_oss_proc_init(mix) 1233#define snd_mixer_oss_proc_done(mix) 1234#endif /* CONFIG_PROC_FS */ 1235 1236static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) 1237{ 1238 static struct snd_mixer_oss_assign_table table[] = { 1239 { SOUND_MIXER_VOLUME, "Master", 0 }, 1240 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ 1241 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, 1242 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, 1243 { SOUND_MIXER_SYNTH, "Synth", 0 }, 1244 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ 1245 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ 1246 { SOUND_MIXER_PCM, "PCM", 0 }, 1247 { SOUND_MIXER_SPEAKER, "Beep", 0 }, 1248 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */ 1249 { SOUND_MIXER_SPEAKER, "Speaker", 0 }, /* fallback */ 1250 { SOUND_MIXER_LINE, "Line", 0 }, 1251 { SOUND_MIXER_MIC, "Mic", 0 }, 1252 { SOUND_MIXER_CD, "CD", 0 }, 1253 { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, 1254 { SOUND_MIXER_ALTPCM, "PCM", 1 }, 1255 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ 1256 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ 1257 { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, 1258 { SOUND_MIXER_IGAIN, "Capture", 0 }, 1259 { SOUND_MIXER_OGAIN, "Playback", 0 }, 1260 { SOUND_MIXER_LINE1, "Aux", 0 }, 1261 { SOUND_MIXER_LINE2, "Aux", 1 }, 1262 { SOUND_MIXER_LINE3, "Aux", 2 }, 1263 { SOUND_MIXER_DIGITAL1, "Digital", 0 }, 1264 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ 1265 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ 1266 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ 1267 { SOUND_MIXER_DIGITAL2, "Digital", 1 }, 1268 { SOUND_MIXER_DIGITAL3, "Digital", 2 }, 1269 { SOUND_MIXER_PHONEIN, "Phone", 0 }, 1270 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, 1271 { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/ 1272 { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/ 1273 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ 1274 { SOUND_MIXER_VIDEO, "Video", 0 }, 1275 { SOUND_MIXER_RADIO, "Radio", 0 }, 1276 { SOUND_MIXER_MONITOR, "Monitor", 0 } 1277 }; 1278 unsigned int idx; 1279 1280 for (idx = 0; idx < ARRAY_SIZE(table); idx++) 1281 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); 1282 if (mixer->mask_recsrc) { 1283 mixer->get_recsrc = snd_mixer_oss_get_recsrc2; 1284 mixer->put_recsrc = snd_mixer_oss_put_recsrc2; 1285 } 1286} 1287 1288/* 1289 * 1290 */ 1291 1292static int snd_mixer_oss_free1(void *private) 1293{ 1294 struct snd_mixer_oss *mixer = private; 1295 struct snd_card *card; 1296 int idx; 1297 1298 if (!mixer) 1299 return 0; 1300 card = mixer->card; 1301 if (snd_BUG_ON(mixer != card->mixer_oss)) 1302 return -ENXIO; 1303 card->mixer_oss = NULL; 1304 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { 1305 struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; 1306 if (chn->private_free) 1307 chn->private_free(chn); 1308 } 1309 kfree(mixer); 1310 return 0; 1311} 1312 1313static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) 1314{ 1315 struct snd_mixer_oss *mixer; 1316 1317 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { 1318 char name[128]; 1319 int idx, err; 1320 1321 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); 1322 if (mixer == NULL) 1323 return -ENOMEM; 1324 mutex_init(&mixer->reg_mutex); 1325 sprintf(name, "mixer%i%i", card->number, 0); 1326 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, 1327 card, 0, 1328 &snd_mixer_oss_f_ops, card, 1329 name)) < 0) { 1330 snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", 1331 card->number, 0); 1332 kfree(mixer); 1333 return err; 1334 } 1335 mixer->oss_dev_alloc = 1; 1336 mixer->card = card; 1337 if (*card->mixername) 1338 strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); 1339 else 1340 strlcpy(mixer->name, name, sizeof(mixer->name)); 1341#ifdef SNDRV_OSS_INFO_DEV_MIXERS 1342 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, 1343 card->number, 1344 mixer->name); 1345#endif 1346 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) 1347 mixer->slots[idx].number = idx; 1348 card->mixer_oss = mixer; 1349 snd_mixer_oss_build(mixer); 1350 snd_mixer_oss_proc_init(mixer); 1351 } else { 1352 mixer = card->mixer_oss; 1353 if (mixer == NULL) 1354 return 0; 1355 if (mixer->oss_dev_alloc) { 1356#ifdef SNDRV_OSS_INFO_DEV_MIXERS 1357 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); 1358#endif 1359 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); 1360 mixer->oss_dev_alloc = 0; 1361 } 1362 if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) 1363 return 0; 1364 snd_mixer_oss_proc_done(mixer); 1365 return snd_mixer_oss_free1(mixer); 1366 } 1367 return 0; 1368} 1369 1370static int __init alsa_mixer_oss_init(void) 1371{ 1372 int idx; 1373 1374 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; 1375 for (idx = 0; idx < SNDRV_CARDS; idx++) { 1376 if (snd_cards[idx]) 1377 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); 1378 } 1379 return 0; 1380} 1381 1382static void __exit alsa_mixer_oss_exit(void) 1383{ 1384 int idx; 1385 1386 snd_mixer_oss_notify_callback = NULL; 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_FREE); 1390 } 1391} 1392 1393module_init(alsa_mixer_oss_init) 1394module_exit(alsa_mixer_oss_exit) 1395 1396EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); 1397