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[ARM] 4648/1: i.MX/MX1 ensure more complete AITC initialization
[linux-2.6/openmoko-kernel/knife-kernel.git] / sound / core / oss / mixer_oss.c
blob3ace4a5680ba532ec394e2dcaef8d8b21eb18c08
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 <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/slab.h>
25 #include <linux/time.h>
26 #include <linux/string.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 card = snd_lookup_oss_minor_data(iminor(inode),
48 SNDRV_OSS_DEVICE_TYPE_MIXER);
49 if (card == NULL)
50 return -ENODEV;
51 if (card->mixer_oss == NULL)
52 return -ENODEV;
53 err = snd_card_file_add(card, file);
54 if (err < 0)
55 return err;
56 fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
57 if (fmixer == NULL) {
58 snd_card_file_remove(card, file);
59 return -ENOMEM;
60 }
61 fmixer->card = card;
62 fmixer->mixer = card->mixer_oss;
63 file->private_data = fmixer;
64 if (!try_module_get(card->module)) {
65 kfree(fmixer);
66 snd_card_file_remove(card, file);
67 return -EFAULT;
68 }
69 return 0;
70 }
71
72 static int snd_mixer_oss_release(struct inode *inode, struct file *file)
73 {
74 struct snd_mixer_oss_file *fmixer;
75
76 if (file->private_data) {
77 fmixer = (struct snd_mixer_oss_file *) file->private_data;
78 module_put(fmixer->card->module);
79 snd_card_file_remove(fmixer->card, file);
80 kfree(fmixer);
81 }
82 return 0;
83 }
84
85 static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer,
86 mixer_info __user *_info)
87 {
88 struct snd_card *card = fmixer->card;
89 struct snd_mixer_oss *mixer = fmixer->mixer;
90 struct mixer_info info;
91
92 memset(&info, 0, sizeof(info));
93 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
94 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
95 info.modify_counter = card->mixer_oss_change_count;
96 if (copy_to_user(_info, &info, sizeof(info)))
97 return -EFAULT;
98 return 0;
99 }
100
101 static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer,
102 _old_mixer_info __user *_info)
103 {
104 struct snd_card *card = fmixer->card;
105 struct snd_mixer_oss *mixer = fmixer->mixer;
106 _old_mixer_info info;
107
108 memset(&info, 0, sizeof(info));
109 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
110 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
111 if (copy_to_user(_info, &info, sizeof(info)))
112 return -EFAULT;
113 return 0;
114 }
115
116 static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer)
117 {
118 struct snd_mixer_oss *mixer = fmixer->mixer;
119 int result = 0;
120
121 if (mixer == NULL)
122 return -EIO;
123 if (mixer->get_recsrc && mixer->put_recsrc)
124 result |= SOUND_CAP_EXCL_INPUT;
125 return result;
126 }
127
128 static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer)
129 {
130 struct snd_mixer_oss *mixer = fmixer->mixer;
131 struct snd_mixer_oss_slot *pslot;
132 int result = 0, chn;
133
134 if (mixer == NULL)
135 return -EIO;
136 for (chn = 0; chn < 31; chn++) {
137 pslot = &mixer->slots[chn];
138 if (pslot->put_volume || pslot->put_recsrc)
139 result |= 1 << chn;
140 }
141 return result;
142 }
143
144 static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer)
145 {
146 struct snd_mixer_oss *mixer = fmixer->mixer;
147 struct snd_mixer_oss_slot *pslot;
148 int result = 0, chn;
149
150 if (mixer == NULL)
151 return -EIO;
152 for (chn = 0; chn < 31; chn++) {
153 pslot = &mixer->slots[chn];
154 if (pslot->put_volume && pslot->stereo)
155 result |= 1 << chn;
156 }
157 return result;
158 }
159
160 static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
161 {
162 struct snd_mixer_oss *mixer = fmixer->mixer;
163 int result = 0;
164
165 if (mixer == NULL)
166 return -EIO;
167 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
168 result = mixer->mask_recsrc;
169 } else {
170 struct snd_mixer_oss_slot *pslot;
171 int chn;
172 for (chn = 0; chn < 31; chn++) {
173 pslot = &mixer->slots[chn];
174 if (pslot->put_recsrc)
175 result |= 1 << chn;
176 }
177 }
178 return result;
179 }
180
181 static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
182 {
183 struct snd_mixer_oss *mixer = fmixer->mixer;
184 int result = 0;
185
186 if (mixer == NULL)
187 return -EIO;
188 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
189 int err;
190 if ((err = mixer->get_recsrc(fmixer, &result)) < 0)
191 return err;
192 result = 1 << result;
193 } else {
194 struct snd_mixer_oss_slot *pslot;
195 int chn;
196 for (chn = 0; chn < 31; chn++) {
197 pslot = &mixer->slots[chn];
198 if (pslot->get_recsrc) {
199 int active = 0;
200 pslot->get_recsrc(fmixer, pslot, &active);
201 if (active)
202 result |= 1 << chn;
203 }
204 }
205 }
206 return mixer->oss_recsrc = result;
207 }
208
209 static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc)
210 {
211 struct snd_mixer_oss *mixer = fmixer->mixer;
212 struct snd_mixer_oss_slot *pslot;
213 int chn, active;
214 int result = 0;
215
216 if (mixer == NULL)
217 return -EIO;
218 if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */
219 if (recsrc & ~mixer->oss_recsrc)
220 recsrc &= ~mixer->oss_recsrc;
221 mixer->put_recsrc(fmixer, ffz(~recsrc));
222 mixer->get_recsrc(fmixer, &result);
223 result = 1 << result;
224 }
225 for (chn = 0; chn < 31; chn++) {
226 pslot = &mixer->slots[chn];
227 if (pslot->put_recsrc) {
228 active = (recsrc & (1 << chn)) ? 1 : 0;
229 pslot->put_recsrc(fmixer, pslot, active);
230 }
231 }
232 if (! result) {
233 for (chn = 0; chn < 31; chn++) {
234 pslot = &mixer->slots[chn];
235 if (pslot->get_recsrc) {
236 active = 0;
237 pslot->get_recsrc(fmixer, pslot, &active);
238 if (active)
239 result |= 1 << chn;
240 }
241 }
242 }
243 return result;
244 }
245
246 static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
247 {
248 struct snd_mixer_oss *mixer = fmixer->mixer;
249 struct snd_mixer_oss_slot *pslot;
250 int result = 0, left, right;
251
252 if (mixer == NULL || slot > 30)
253 return -EIO;
254 pslot = &mixer->slots[slot];
255 left = pslot->volume[0];
256 right = pslot->volume[1];
257 if (pslot->get_volume)
258 result = pslot->get_volume(fmixer, pslot, &left, &right);
259 if (!pslot->stereo)
260 right = left;
261 snd_assert(left >= 0 && left <= 100, return -EIO);
262 snd_assert(right >= 0 && right <= 100, return -EIO);
263 if (result >= 0) {
264 pslot->volume[0] = left;
265 pslot->volume[1] = right;
266 result = (left & 0xff) | ((right & 0xff) << 8);
267 }
268 return result;
269 }
270
271 static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
272 int slot, int volume)
273 {
274 struct snd_mixer_oss *mixer = fmixer->mixer;
275 struct snd_mixer_oss_slot *pslot;
276 int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff;
277
278 if (mixer == NULL || slot > 30)
279 return -EIO;
280 pslot = &mixer->slots[slot];
281 if (left > 100)
282 left = 100;
283 if (right > 100)
284 right = 100;
285 if (!pslot->stereo)
286 right = left;
287 if (pslot->put_volume)
288 result = pslot->put_volume(fmixer, pslot, left, right);
289 if (result < 0)
290 return result;
291 pslot->volume[0] = left;
292 pslot->volume[1] = right;
293 return (left & 0xff) | ((right & 0xff) << 8);
294 }
295
296 static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
297 {
298 void __user *argp = (void __user *)arg;
299 int __user *p = argp;
300 int tmp;
301
302 snd_assert(fmixer != NULL, return -ENXIO);
303 if (((cmd >> 8) & 0xff) == 'M') {
304 switch (cmd) {
305 case SOUND_MIXER_INFO:
306 return snd_mixer_oss_info(fmixer, argp);
307 case SOUND_OLD_MIXER_INFO:
308 return snd_mixer_oss_info_obsolete(fmixer, argp);
309 case SOUND_MIXER_WRITE_RECSRC:
310 if (get_user(tmp, p))
311 return -EFAULT;
312 tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
313 if (tmp < 0)
314 return tmp;
315 return put_user(tmp, p);
316 case OSS_GETVERSION:
317 return put_user(SNDRV_OSS_VERSION, p);
318 case OSS_ALSAEMULVER:
319 return put_user(1, p);
320 case SOUND_MIXER_READ_DEVMASK:
321 tmp = snd_mixer_oss_devmask(fmixer);
322 if (tmp < 0)
323 return tmp;
324 return put_user(tmp, p);
325 case SOUND_MIXER_READ_STEREODEVS:
326 tmp = snd_mixer_oss_stereodevs(fmixer);
327 if (tmp < 0)
328 return tmp;
329 return put_user(tmp, p);
330 case SOUND_MIXER_READ_RECMASK:
331 tmp = snd_mixer_oss_recmask(fmixer);
332 if (tmp < 0)
333 return tmp;
334 return put_user(tmp, p);
335 case SOUND_MIXER_READ_CAPS:
336 tmp = snd_mixer_oss_caps(fmixer);
337 if (tmp < 0)
338 return tmp;
339 return put_user(tmp, p);
340 case SOUND_MIXER_READ_RECSRC:
341 tmp = snd_mixer_oss_get_recsrc(fmixer);
342 if (tmp < 0)
343 return tmp;
344 return put_user(tmp, p);
345 }
346 }
347 if (cmd & SIOC_IN) {
348 if (get_user(tmp, p))
349 return -EFAULT;
350 tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
351 if (tmp < 0)
352 return tmp;
353 return put_user(tmp, p);
354 } else if (cmd & SIOC_OUT) {
355 tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
356 if (tmp < 0)
357 return tmp;
358 return put_user(tmp, p);
359 }
360 return -ENXIO;
361 }
362
363 static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
364 {
365 return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg);
366 }
367
368 int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
369 {
370 struct snd_mixer_oss_file fmixer;
371
372 snd_assert(card != NULL, return -ENXIO);
373 if (card->mixer_oss == NULL)
374 return -ENXIO;
375 memset(&fmixer, 0, sizeof(fmixer));
376 fmixer.card = card;
377 fmixer.mixer = card->mixer_oss;
378 return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
379 }
380
381 #ifdef CONFIG_COMPAT
382 /* all compatible */
383 #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl
384 #else
385 #define snd_mixer_oss_ioctl_compat NULL
386 #endif
387
388 /*
389 * REGISTRATION PART
390 */
391
392 static const struct file_operations snd_mixer_oss_f_ops =
393 {
394 .owner = THIS_MODULE,
395 .open = snd_mixer_oss_open,
396 .release = snd_mixer_oss_release,
397 .unlocked_ioctl = snd_mixer_oss_ioctl,
398 .compat_ioctl = snd_mixer_oss_ioctl_compat,
399 };
400
401 /*
402 * utilities
403 */
404
405 static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
406 {
407 long orange = omax - omin, nrange = nmax - nmin;
408
409 if (orange == 0)
410 return 0;
411 return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
412 }
413
414 /* convert from alsa native to oss values (0-100) */
415 static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
416 {
417 if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
418 return *old;
419 return snd_mixer_oss_conv(val, min, max, 0, 100);
420 }
421
422 /* convert from oss to alsa native values */
423 static long snd_mixer_oss_conv2(long val, long min, long max)
424 {
425 return snd_mixer_oss_conv(val, 0, 100, min, max);
426 }
427
428 #if 0
429 static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot)
430 {
431 struct snd_mixer_oss *mixer = card->mixer_oss;
432 if (mixer)
433 mixer->mask_recsrc |= 1 << slot;
434 }
435
436 static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot)
437 {
438 struct snd_mixer_oss *mixer = card->mixer_oss;
439 if (mixer && (mixer->mask_recsrc & (1 << slot)))
440 return 1;
441 return 0;
442 }
443 #endif
444
445 #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250
446
447 #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0
448 #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1
449 #define SNDRV_MIXER_OSS_ITEM_GROUTE 2
450 #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3
451 #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4
452 #define SNDRV_MIXER_OSS_ITEM_PROUTE 5
453 #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6
454 #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7
455 #define SNDRV_MIXER_OSS_ITEM_CROUTE 8
456 #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9
457 #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10
458
459 #define SNDRV_MIXER_OSS_ITEM_COUNT 11
460
461 #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0)
462 #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1)
463 #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2)
464 #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3)
465 #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4)
466 #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5)
467 #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6)
468 #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7)
469 #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8)
470 #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9)
471 #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10)
472
473 struct slot {
474 unsigned int signature;
475 unsigned int present;
476 unsigned int channels;
477 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
478 unsigned int capture_item;
479 struct snd_mixer_oss_assign_table *assigned;
480 unsigned int allocated: 1;
481 };
482
483 #define ID_UNKNOWN ((unsigned int)-1)
484
485 static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index)
486 {
487 struct snd_card *card = mixer->card;
488 struct snd_ctl_elem_id id;
489
490 memset(&id, 0, sizeof(id));
491 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
492 strcpy(id.name, name);
493 id.index = index;
494 return snd_ctl_find_id(card, &id);
495 }
496
497 static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer,
498 struct snd_mixer_oss_slot *pslot,
499 unsigned int numid,
500 int *left, int *right)
501 {
502 struct snd_ctl_elem_info *uinfo;
503 struct snd_ctl_elem_value *uctl;
504 struct snd_kcontrol *kctl;
505 struct snd_card *card = fmixer->card;
506
507 if (numid == ID_UNKNOWN)
508 return;
509 down_read(&card->controls_rwsem);
510 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
511 up_read(&card->controls_rwsem);
512 return;
513 }
514 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
515 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
516 if (uinfo == NULL || uctl == NULL)
517 goto __unalloc;
518 if (kctl->info(kctl, uinfo))
519 goto __unalloc;
520 if (kctl->get(kctl, uctl))
521 goto __unalloc;
522 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
523 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
524 goto __unalloc;
525 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
526 if (uinfo->count > 1)
527 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
528 __unalloc:
529 up_read(&card->controls_rwsem);
530 kfree(uctl);
531 kfree(uinfo);
532 }
533
534 static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer,
535 struct snd_mixer_oss_slot *pslot,
536 unsigned int numid,
537 int *left, int *right,
538 int route)
539 {
540 struct snd_ctl_elem_info *uinfo;
541 struct snd_ctl_elem_value *uctl;
542 struct snd_kcontrol *kctl;
543 struct snd_card *card = fmixer->card;
544
545 if (numid == ID_UNKNOWN)
546 return;
547 down_read(&card->controls_rwsem);
548 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
549 up_read(&card->controls_rwsem);
550 return;
551 }
552 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
553 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
554 if (uinfo == NULL || uctl == NULL)
555 goto __unalloc;
556 if (kctl->info(kctl, uinfo))
557 goto __unalloc;
558 if (kctl->get(kctl, uctl))
559 goto __unalloc;
560 if (!uctl->value.integer.value[0]) {
561 *left = 0;
562 if (uinfo->count == 1)
563 *right = 0;
564 }
565 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
566 *right = 0;
567 __unalloc:
568 up_read(&card->controls_rwsem);
569 kfree(uctl);
570 kfree(uinfo);
571 }
572
573 static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
574 struct snd_mixer_oss_slot *pslot,
575 int *left, int *right)
576 {
577 struct slot *slot = (struct slot *)pslot->private_data;
578
579 *left = *right = 100;
580 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
581 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
582 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
583 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
584 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
585 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
586 }
587 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
588 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
589 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
590 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
591 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
592 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
593 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
594 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
595 }
596 return 0;
597 }
598
599 static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
600 struct snd_mixer_oss_slot *pslot,
601 unsigned int numid,
602 int left, int right)
603 {
604 struct snd_ctl_elem_info *uinfo;
605 struct snd_ctl_elem_value *uctl;
606 struct snd_kcontrol *kctl;
607 struct snd_card *card = fmixer->card;
608 int res;
609
610 if (numid == ID_UNKNOWN)
611 return;
612 down_read(&card->controls_rwsem);
613 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL)
614 return;
615 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
616 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
617 if (uinfo == NULL || uctl == NULL)
618 goto __unalloc;
619 if (kctl->info(kctl, uinfo))
620 goto __unalloc;
621 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
622 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
623 goto __unalloc;
624 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
625 if (uinfo->count > 1)
626 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
627 if ((res = kctl->put(kctl, uctl)) < 0)
628 goto __unalloc;
629 if (res > 0)
630 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
631 __unalloc:
632 up_read(&card->controls_rwsem);
633 kfree(uctl);
634 kfree(uinfo);
635 }
636
637 static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
638 struct snd_mixer_oss_slot *pslot,
639 unsigned int numid,
640 int left, int right,
641 int route)
642 {
643 struct snd_ctl_elem_info *uinfo;
644 struct snd_ctl_elem_value *uctl;
645 struct snd_kcontrol *kctl;
646 struct snd_card *card = fmixer->card;
647 int res;
648
649 if (numid == ID_UNKNOWN)
650 return;
651 down_read(&card->controls_rwsem);
652 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
653 up_read(&fmixer->card->controls_rwsem);
654 return;
655 }
656 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
657 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
658 if (uinfo == NULL || uctl == NULL)
659 goto __unalloc;
660 if (kctl->info(kctl, uinfo))
661 goto __unalloc;
662 if (uinfo->count > 1) {
663 uctl->value.integer.value[0] = left > 0 ? 1 : 0;
664 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
665 if (route) {
666 uctl->value.integer.value[1] =
667 uctl->value.integer.value[2] = 0;
668 }
669 } else {
670 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
671 }
672 if ((res = kctl->put(kctl, uctl)) < 0)
673 goto __unalloc;
674 if (res > 0)
675 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
676 __unalloc:
677 up_read(&card->controls_rwsem);
678 kfree(uctl);
679 kfree(uinfo);
680 }
681
682 static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
683 struct snd_mixer_oss_slot *pslot,
684 int left, int right)
685 {
686 struct slot *slot = (struct slot *)pslot->private_data;
687
688 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
689 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
690 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
691 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
692 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
693 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
694 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
695 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
696 }
697 if (left || right) {
698 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
699 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
700 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
701 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
702 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
703 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
704 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
705 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
706 } else {
707 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
708 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
709 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
710 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
711 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
712 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
713 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
714 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
715 }
716 }
717 return 0;
718 }
719
720 static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
721 struct snd_mixer_oss_slot *pslot,
722 int *active)
723 {
724 struct slot *slot = (struct slot *)pslot->private_data;
725 int left, right;
726
727 left = right = 1;
728 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
729 *active = (left || right) ? 1 : 0;
730 return 0;
731 }
732
733 static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
734 struct snd_mixer_oss_slot *pslot,
735 int *active)
736 {
737 struct slot *slot = (struct slot *)pslot->private_data;
738 int left, right;
739
740 left = right = 1;
741 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
742 *active = (left || right) ? 1 : 0;
743 return 0;
744 }
745
746 static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
747 struct snd_mixer_oss_slot *pslot,
748 int active)
749 {
750 struct slot *slot = (struct slot *)pslot->private_data;
751
752 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
753 return 0;
754 }
755
756 static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
757 struct snd_mixer_oss_slot *pslot,
758 int active)
759 {
760 struct slot *slot = (struct slot *)pslot->private_data;
761
762 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
763 return 0;
764 }
765
766 static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index)
767 {
768 struct snd_card *card = fmixer->card;
769 struct snd_mixer_oss *mixer = fmixer->mixer;
770 struct snd_kcontrol *kctl;
771 struct snd_mixer_oss_slot *pslot;
772 struct slot *slot;
773 struct snd_ctl_elem_info *uinfo;
774 struct snd_ctl_elem_value *uctl;
775 int err, idx;
776
777 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
778 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
779 if (uinfo == NULL || uctl == NULL) {
780 err = -ENOMEM;
781 goto __unlock;
782 }
783 down_read(&card->controls_rwsem);
784 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
785 if (! kctl) {
786 err = -ENOENT;
787 goto __unlock;
788 }
789 if ((err = kctl->info(kctl, uinfo)) < 0)
790 goto __unlock;
791 if ((err = kctl->get(kctl, uctl)) < 0)
792 goto __unlock;
793 for (idx = 0; idx < 32; idx++) {
794 if (!(mixer->mask_recsrc & (1 << idx)))
795 continue;
796 pslot = &mixer->slots[idx];
797 slot = (struct slot *)pslot->private_data;
798 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
799 continue;
800 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
801 continue;
802 if (slot->capture_item == uctl->value.enumerated.item[0]) {
803 *active_index = idx;
804 break;
805 }
806 }
807 err = 0;
808 __unlock:
809 up_read(&card->controls_rwsem);
810 kfree(uctl);
811 kfree(uinfo);
812 return err;
813 }
814
815 static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index)
816 {
817 struct snd_card *card = fmixer->card;
818 struct snd_mixer_oss *mixer = fmixer->mixer;
819 struct snd_kcontrol *kctl;
820 struct snd_mixer_oss_slot *pslot;
821 struct slot *slot = NULL;
822 struct snd_ctl_elem_info *uinfo;
823 struct snd_ctl_elem_value *uctl;
824 int err;
825 unsigned int idx;
826
827 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
828 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
829 if (uinfo == NULL || uctl == NULL) {
830 err = -ENOMEM;
831 goto __unlock;
832 }
833 down_read(&card->controls_rwsem);
834 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
835 if (! kctl) {
836 err = -ENOENT;
837 goto __unlock;
838 }
839 if ((err = kctl->info(kctl, uinfo)) < 0)
840 goto __unlock;
841 for (idx = 0; idx < 32; idx++) {
842 if (!(mixer->mask_recsrc & (1 << idx)))
843 continue;
844 pslot = &mixer->slots[idx];
845 slot = (struct slot *)pslot->private_data;
846 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
847 continue;
848 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
849 continue;
850 if (idx == active_index)
851 break;
852 slot = NULL;
853 }
854 if (! slot)
855 goto __unlock;
856 for (idx = 0; idx < uinfo->count; idx++)
857 uctl->value.enumerated.item[idx] = slot->capture_item;
858 err = kctl->put(kctl, uctl);
859 if (err > 0)
860 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
861 err = 0;
862 __unlock:
863 up_read(&card->controls_rwsem);
864 kfree(uctl);
865 kfree(uinfo);
866 return err;
867 }
868
869 struct snd_mixer_oss_assign_table {
870 int oss_id;
871 const char *name;
872 int index;
873 };
874
875 static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item)
876 {
877 struct snd_ctl_elem_info *info;
878 struct snd_kcontrol *kcontrol;
879 struct snd_card *card = mixer->card;
880 int err;
881
882 down_read(&card->controls_rwsem);
883 kcontrol = snd_mixer_oss_test_id(mixer, name, index);
884 if (kcontrol == NULL) {
885 up_read(&card->controls_rwsem);
886 return 0;
887 }
888 info = kmalloc(sizeof(*info), GFP_KERNEL);
889 if (! info) {
890 up_read(&card->controls_rwsem);
891 return -ENOMEM;
892 }
893 if ((err = kcontrol->info(kcontrol, info)) < 0) {
894 up_read(&card->controls_rwsem);
895 kfree(info);
896 return err;
897 }
898 slot->numid[item] = kcontrol->id.numid;
899 up_read(&card->controls_rwsem);
900 if (info->count > slot->channels)
901 slot->channels = info->count;
902 slot->present |= 1 << item;
903 kfree(info);
904 return 0;
905 }
906
907 static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
908 {
909 struct slot *p = (struct slot *)chn->private_data;
910 if (p) {
911 if (p->allocated && p->assigned) {
912 kfree(p->assigned->name);
913 kfree(p->assigned);
914 }
915 kfree(p);
916 }
917 }
918
919 static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
920 {
921 int idx = rslot->number; /* remember this */
922 if (rslot->private_free)
923 rslot->private_free(rslot);
924 memset(rslot, 0, sizeof(*rslot));
925 rslot->number = idx;
926 }
927
928 /*
929 * build an OSS mixer element.
930 * ptr_allocated means the entry is dynamically allocated (change via proc file).
931 * when replace_old = 1, the old entry is replaced with the new one.
932 */
933 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)
934 {
935 struct slot slot;
936 struct slot *pslot;
937 struct snd_kcontrol *kctl;
938 struct snd_mixer_oss_slot *rslot;
939 char str[64];
940
941 /* check if already assigned */
942 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
943 return 0;
944
945 memset(&slot, 0, sizeof(slot));
946 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
947 if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index,
948 SNDRV_MIXER_OSS_ITEM_GLOBAL))
949 return 0;
950 sprintf(str, "%s Switch", ptr->name);
951 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
952 SNDRV_MIXER_OSS_ITEM_GSWITCH))
953 return 0;
954 sprintf(str, "%s Route", ptr->name);
955 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
956 SNDRV_MIXER_OSS_ITEM_GROUTE))
957 return 0;
958 sprintf(str, "%s Volume", ptr->name);
959 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
960 SNDRV_MIXER_OSS_ITEM_GVOLUME))
961 return 0;
962 sprintf(str, "%s Playback Switch", ptr->name);
963 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
964 SNDRV_MIXER_OSS_ITEM_PSWITCH))
965 return 0;
966 sprintf(str, "%s Playback Route", ptr->name);
967 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
968 SNDRV_MIXER_OSS_ITEM_PROUTE))
969 return 0;
970 sprintf(str, "%s Playback Volume", ptr->name);
971 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
972 SNDRV_MIXER_OSS_ITEM_PVOLUME))
973 return 0;
974 sprintf(str, "%s Capture Switch", ptr->name);
975 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
976 SNDRV_MIXER_OSS_ITEM_CSWITCH))
977 return 0;
978 sprintf(str, "%s Capture Route", ptr->name);
979 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
980 SNDRV_MIXER_OSS_ITEM_CROUTE))
981 return 0;
982 sprintf(str, "%s Capture Volume", ptr->name);
983 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
984 SNDRV_MIXER_OSS_ITEM_CVOLUME))
985 return 0;
986 down_read(&mixer->card->controls_rwsem);
987 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
988 struct snd_ctl_elem_info *uinfo;
989
990 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
991 if (! uinfo) {
992 up_read(&mixer->card->controls_rwsem);
993 return -ENOMEM;
994 }
995
996 if (kctl->info(kctl, uinfo)) {
997 up_read(&mixer->card->controls_rwsem);
998 return 0;
999 }
1000 strcpy(str, ptr->name);
1001 if (!strcmp(str, "Master"))
1002 strcpy(str, "Mix");
1003 if (!strcmp(str, "Master Mono"))
1004 strcpy(str, "Mix Mono");
1005 slot.capture_item = 0;
1006 if (!strcmp(uinfo->value.enumerated.name, str)) {
1007 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1008 } else {
1009 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
1010 uinfo->value.enumerated.item = slot.capture_item;
1011 if (kctl->info(kctl, uinfo)) {
1012 up_read(&mixer->card->controls_rwsem);
1013 return 0;
1014 }
1015 if (!strcmp(uinfo->value.enumerated.name, str)) {
1016 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1017 break;
1018 }
1019 }
1020 }
1021 kfree(uinfo);
1022 }
1023 up_read(&mixer->card->controls_rwsem);
1024 if (slot.present != 0) {
1025 pslot = kmalloc(sizeof(slot), GFP_KERNEL);
1026 if (! pslot)
1027 return -ENOMEM;
1028 *pslot = slot;
1029 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
1030 pslot->assigned = ptr;
1031 pslot->allocated = ptr_allocated;
1032 rslot = &mixer->slots[ptr->oss_id];
1033 mixer_slot_clear(rslot);
1034 rslot->stereo = slot.channels > 1 ? 1 : 0;
1035 rslot->get_volume = snd_mixer_oss_get_volume1;
1036 rslot->put_volume = snd_mixer_oss_put_volume1;
1037 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */
1038 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
1039 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
1040 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
1041 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
1042 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
1043 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
1044 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
1045 mixer->mask_recsrc |= 1 << ptr->oss_id;
1046 }
1047 rslot->private_data = pslot;
1048 rslot->private_free = snd_mixer_oss_slot_free;
1049 return 1;
1050 }
1051 return 0;
1052 }
1053
1054 #ifdef CONFIG_PROC_FS
1055 /*
1056 */
1057 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
1058 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
1059 MIXER_VOL(VOLUME),
1060 MIXER_VOL(BASS),
1061 MIXER_VOL(TREBLE),
1062 MIXER_VOL(SYNTH),
1063 MIXER_VOL(PCM),
1064 MIXER_VOL(SPEAKER),
1065 MIXER_VOL(LINE),
1066 MIXER_VOL(MIC),
1067 MIXER_VOL(CD),
1068 MIXER_VOL(IMIX),
1069 MIXER_VOL(ALTPCM),
1070 MIXER_VOL(RECLEV),
1071 MIXER_VOL(IGAIN),
1072 MIXER_VOL(OGAIN),
1073 MIXER_VOL(LINE1),
1074 MIXER_VOL(LINE2),
1075 MIXER_VOL(LINE3),
1076 MIXER_VOL(DIGITAL1),
1077 MIXER_VOL(DIGITAL2),
1078 MIXER_VOL(DIGITAL3),
1079 MIXER_VOL(PHONEIN),
1080 MIXER_VOL(PHONEOUT),
1081 MIXER_VOL(VIDEO),
1082 MIXER_VOL(RADIO),
1083 MIXER_VOL(MONITOR),
1084 };
1085
1086 /*
1087 * /proc interface
1088 */
1089
1090 static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
1091 struct snd_info_buffer *buffer)
1092 {
1093 struct snd_mixer_oss *mixer = entry->private_data;
1094 int i;
1095
1096 mutex_lock(&mixer->reg_mutex);
1097 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
1098 struct slot *p;
1099
1100 if (! oss_mixer_names[i])
1101 continue;
1102 p = (struct slot *)mixer->slots[i].private_data;
1103 snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
1104 if (p && p->assigned)
1105 snd_iprintf(buffer, "\"%s\" %d\n",
1106 p->assigned->name,
1107 p->assigned->index);
1108 else
1109 snd_iprintf(buffer, "\"\" 0\n");
1110 }
1111 mutex_unlock(&mixer->reg_mutex);
1112 }
1113
1114 static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
1115 struct snd_info_buffer *buffer)
1116 {
1117 struct snd_mixer_oss *mixer = entry->private_data;
1118 char line[128], str[32], idxstr[16], *cptr;
1119 int ch, idx;
1120 struct snd_mixer_oss_assign_table *tbl;
1121 struct slot *slot;
1122
1123 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1124 cptr = snd_info_get_str(str, line, sizeof(str));
1125 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
1126 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
1127 break;
1128 if (ch >= SNDRV_OSS_MAX_MIXERS) {
1129 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
1130 continue;
1131 }
1132 cptr = snd_info_get_str(str, cptr, sizeof(str));
1133 if (! *str) {
1134 /* remove the entry */
1135 mutex_lock(&mixer->reg_mutex);
1136 mixer_slot_clear(&mixer->slots[ch]);
1137 mutex_unlock(&mixer->reg_mutex);
1138 continue;
1139 }
1140 snd_info_get_str(idxstr, cptr, sizeof(idxstr));
1141 idx = simple_strtoul(idxstr, NULL, 10);
1142 if (idx >= 0x4000) { /* too big */
1143 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
1144 continue;
1145 }
1146 mutex_lock(&mixer->reg_mutex);
1147 slot = (struct slot *)mixer->slots[ch].private_data;
1148 if (slot && slot->assigned &&
1149 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
1150 /* not changed */
1151 goto __unlock;
1152 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
1153 if (! tbl) {
1154 snd_printk(KERN_ERR "mixer_oss: no memory\n");
1155 goto __unlock;
1156 }
1157 tbl->oss_id = ch;
1158 tbl->name = kstrdup(str, GFP_KERNEL);
1159 if (! tbl->name) {
1160 kfree(tbl);
1161 goto __unlock;
1162 }
1163 tbl->index = idx;
1164 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
1165 kfree(tbl->name);
1166 kfree(tbl);
1167 }
1168 __unlock:
1169 mutex_unlock(&mixer->reg_mutex);
1170 }
1171 }
1172
1173 static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
1174 {
1175 struct snd_info_entry *entry;
1176
1177 entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
1178 mixer->card->proc_root);
1179 if (! entry)
1180 return;
1181 entry->content = SNDRV_INFO_CONTENT_TEXT;
1182 entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
1183 entry->c.text.read = snd_mixer_oss_proc_read;
1184 entry->c.text.write = snd_mixer_oss_proc_write;
1185 entry->private_data = mixer;
1186 if (snd_info_register(entry) < 0) {
1187 snd_info_free_entry(entry);
1188 entry = NULL;
1189 }
1190 mixer->proc_entry = entry;
1191 }
1192
1193 static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
1194 {
1195 snd_info_free_entry(mixer->proc_entry);
1196 mixer->proc_entry = NULL;
1197 }
1198 #else /* !CONFIG_PROC_FS */
1199 #define snd_mixer_oss_proc_init(mix)
1200 #define snd_mixer_oss_proc_done(mix)
1201 #endif /* CONFIG_PROC_FS */
1202
1203 static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
1204 {
1205 static struct snd_mixer_oss_assign_table table[] = {
1206 { SOUND_MIXER_VOLUME, "Master", 0 },
1207 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
1208 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
1209 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
1210 { SOUND_MIXER_SYNTH, "Synth", 0 },
1211 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
1212 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
1213 { SOUND_MIXER_PCM, "PCM", 0 },
1214 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 },
1215 { SOUND_MIXER_LINE, "Line", 0 },
1216 { SOUND_MIXER_MIC, "Mic", 0 },
1217 { SOUND_MIXER_CD, "CD", 0 },
1218 { SOUND_MIXER_IMIX, "Monitor Mix", 0 },
1219 { SOUND_MIXER_ALTPCM, "PCM", 1 },
1220 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
1221 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
1222 { SOUND_MIXER_RECLEV, "-- nothing --", 0 },
1223 { SOUND_MIXER_IGAIN, "Capture", 0 },
1224 { SOUND_MIXER_OGAIN, "Playback", 0 },
1225 { SOUND_MIXER_LINE1, "Aux", 0 },
1226 { SOUND_MIXER_LINE2, "Aux", 1 },
1227 { SOUND_MIXER_LINE3, "Aux", 2 },
1228 { SOUND_MIXER_DIGITAL1, "Digital", 0 },
1229 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
1230 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
1231 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
1232 { SOUND_MIXER_DIGITAL2, "Digital", 1 },
1233 { SOUND_MIXER_DIGITAL3, "Digital", 2 },
1234 { SOUND_MIXER_PHONEIN, "Phone", 0 },
1235 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
1236 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
1237 { SOUND_MIXER_VIDEO, "Video", 0 },
1238 { SOUND_MIXER_RADIO, "Radio", 0 },
1239 { SOUND_MIXER_MONITOR, "Monitor", 0 }
1240 };
1241 unsigned int idx;
1242
1243 for (idx = 0; idx < ARRAY_SIZE(table); idx++)
1244 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
1245 if (mixer->mask_recsrc) {
1246 mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
1247 mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
1248 }
1249 }
1250
1251 /*
1252 *
1253 */
1254
1255 static int snd_mixer_oss_free1(void *private)
1256 {
1257 struct snd_mixer_oss *mixer = private;
1258 struct snd_card *card;
1259 int idx;
1260
1261 snd_assert(mixer != NULL, return -ENXIO);
1262 card = mixer->card;
1263 snd_assert(mixer == card->mixer_oss, return -ENXIO);
1264 card->mixer_oss = NULL;
1265 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
1266 struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
1267 if (chn->private_free)
1268 chn->private_free(chn);
1269 }
1270 kfree(mixer);
1271 return 0;
1272 }
1273
1274 static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
1275 {
1276 struct snd_mixer_oss *mixer;
1277
1278 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
1279 char name[128];
1280 int idx, err;
1281
1282 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
1283 if (mixer == NULL)
1284 return -ENOMEM;
1285 mutex_init(&mixer->reg_mutex);
1286 sprintf(name, "mixer%i%i", card->number, 0);
1287 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
1288 card, 0,
1289 &snd_mixer_oss_f_ops, card,
1290 name)) < 0) {
1291 snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n",
1292 card->number, 0);
1293 kfree(mixer);
1294 return err;
1295 }
1296 mixer->oss_dev_alloc = 1;
1297 mixer->card = card;
1298 if (*card->mixername)
1299 strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
1300 else
1301 strlcpy(mixer->name, name, sizeof(mixer->name));
1302 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1303 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
1304 card->number,
1305 mixer->name);
1306 #endif
1307 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
1308 mixer->slots[idx].number = idx;
1309 card->mixer_oss = mixer;
1310 snd_mixer_oss_build(mixer);
1311 snd_mixer_oss_proc_init(mixer);
1312 } else {
1313 mixer = card->mixer_oss;
1314 if (mixer == NULL)
1315 return 0;
1316 if (mixer->oss_dev_alloc) {
1317 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1318 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
1319 #endif
1320 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1321 mixer->oss_dev_alloc = 0;
1322 }
1323 if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)
1324 return 0;
1325 snd_mixer_oss_proc_done(mixer);
1326 return snd_mixer_oss_free1(mixer);
1327 }
1328 return 0;
1329 }
1330
1331 static int __init alsa_mixer_oss_init(void)
1332 {
1333 int idx;
1334
1335 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
1336 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1337 if (snd_cards[idx])
1338 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
1339 }
1340 return 0;
1341 }
1342
1343 static void __exit alsa_mixer_oss_exit(void)
1344 {
1345 int idx;
1346
1347 snd_mixer_oss_notify_callback = NULL;
1348 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1349 if (snd_cards[idx])
1350 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
1351 }
1352 }
1353
1354 module_init(alsa_mixer_oss_init)
1355 module_exit(alsa_mixer_oss_exit)
1356
1357 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);
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