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Linux v2.6.13
[linux-2.6/next.git] / sound / core / oss / mixer_oss.c
blob98fc0766f8853731757105c534556e27712e1e8f
1 /*
2 * OSS emulation layer for the mixer interface
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22 #include <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/smp_lock.h>
25 #include <linux/slab.h>
26 #include <linux/time.h>
27 #include <linux/string.h>
28 #include <sound/core.h>
29 #include <sound/minors.h>
30 #include <sound/control.h>
31 #include <sound/info.h>
32 #include <sound/mixer_oss.h>
33 #include <linux/soundcard.h>
34
35 #define OSS_ALSAEMULVER _SIOR ('M', 249, int)
36
37 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
38 MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
39 MODULE_LICENSE("GPL");
40 MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
41
42 static int snd_mixer_oss_open(struct inode *inode, struct file *file)
43 {
44 int cardnum = SNDRV_MINOR_OSS_CARD(iminor(inode));
45 snd_card_t *card;
46 snd_mixer_oss_file_t *fmixer;
47 int err;
48
49 if ((card = snd_cards[cardnum]) == 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 = kcalloc(1, 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 snd_mixer_oss_file_t *fmixer;
75
76 if (file->private_data) {
77 fmixer = (snd_mixer_oss_file_t *) 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(snd_mixer_oss_file_t *fmixer,
86 mixer_info __user *_info)
87 {
88 snd_card_t *card = fmixer->card;
89 snd_mixer_oss_t *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(snd_mixer_oss_file_t *fmixer,
102 _old_mixer_info __user *_info)
103 {
104 snd_card_t *card = fmixer->card;
105 snd_mixer_oss_t *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(snd_mixer_oss_file_t *fmixer)
117 {
118 snd_mixer_oss_t *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(snd_mixer_oss_file_t *fmixer)
129 {
130 snd_mixer_oss_t *mixer = fmixer->mixer;
131 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer)
145 {
146 snd_mixer_oss_t *mixer = fmixer->mixer;
147 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer)
161 {
162 snd_mixer_oss_t *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 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer)
182 {
183 snd_mixer_oss_t *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 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer, int recsrc)
210 {
211 snd_mixer_oss_t *mixer = fmixer->mixer;
212 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer, int slot)
247 {
248 snd_mixer_oss_t *mixer = fmixer->mixer;
249 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer,
272 int slot, int volume)
273 {
274 snd_mixer_oss_t *mixer = fmixer->mixer;
275 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *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((snd_mixer_oss_file_t *) file->private_data, cmd, arg);
366 }
367
368 int snd_mixer_oss_ioctl_card(snd_card_t *card, unsigned int cmd, unsigned long arg)
369 {
370 snd_mixer_oss_file_t 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 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 static snd_minor_t snd_mixer_oss_reg =
402 {
403 .comment = "mixer",
404 .f_ops = &snd_mixer_oss_f_ops,
405 };
406
407 /*
408 * utilities
409 */
410
411 static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
412 {
413 long orange = omax - omin, nrange = nmax - nmin;
414
415 if (orange == 0)
416 return 0;
417 return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
418 }
419
420 /* convert from alsa native to oss values (0-100) */
421 static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
422 {
423 if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
424 return *old;
425 return snd_mixer_oss_conv(val, min, max, 0, 100);
426 }
427
428 /* convert from oss to alsa native values */
429 static long snd_mixer_oss_conv2(long val, long min, long max)
430 {
431 return snd_mixer_oss_conv(val, 0, 100, min, max);
432 }
433
434 #if 0
435 static void snd_mixer_oss_recsrce_set(snd_card_t *card, int slot)
436 {
437 snd_mixer_oss_t *mixer = card->mixer_oss;
438 if (mixer)
439 mixer->mask_recsrc |= 1 << slot;
440 }
441
442 static int snd_mixer_oss_recsrce_get(snd_card_t *card, int slot)
443 {
444 snd_mixer_oss_t *mixer = card->mixer_oss;
445 if (mixer && (mixer->mask_recsrc & (1 << slot)))
446 return 1;
447 return 0;
448 }
449 #endif
450
451 #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250
452
453 #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0
454 #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1
455 #define SNDRV_MIXER_OSS_ITEM_GROUTE 2
456 #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3
457 #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4
458 #define SNDRV_MIXER_OSS_ITEM_PROUTE 5
459 #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6
460 #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7
461 #define SNDRV_MIXER_OSS_ITEM_CROUTE 8
462 #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9
463 #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10
464
465 #define SNDRV_MIXER_OSS_ITEM_COUNT 11
466
467 #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0)
468 #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1)
469 #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2)
470 #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3)
471 #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4)
472 #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5)
473 #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6)
474 #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7)
475 #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8)
476 #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9)
477 #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10)
478
479 struct slot {
480 unsigned int signature;
481 unsigned int present;
482 unsigned int channels;
483 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
484 unsigned int capture_item;
485 struct snd_mixer_oss_assign_table *assigned;
486 unsigned int allocated: 1;
487 };
488
489 #define ID_UNKNOWN ((unsigned int)-1)
490
491 static snd_kcontrol_t *snd_mixer_oss_test_id(snd_mixer_oss_t *mixer, const char *name, int index)
492 {
493 snd_card_t * card = mixer->card;
494 snd_ctl_elem_id_t id;
495
496 memset(&id, 0, sizeof(id));
497 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
498 strcpy(id.name, name);
499 id.index = index;
500 return snd_ctl_find_id(card, &id);
501 }
502
503 static void snd_mixer_oss_get_volume1_vol(snd_mixer_oss_file_t *fmixer,
504 snd_mixer_oss_slot_t *pslot,
505 unsigned int numid,
506 int *left, int *right)
507 {
508 snd_ctl_elem_info_t *uinfo;
509 snd_ctl_elem_value_t *uctl;
510 snd_kcontrol_t *kctl;
511 snd_card_t *card = fmixer->card;
512
513 if (numid == ID_UNKNOWN)
514 return;
515 down_read(&card->controls_rwsem);
516 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
517 up_read(&card->controls_rwsem);
518 return;
519 }
520 uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
521 uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
522 if (uinfo == NULL || uctl == NULL)
523 goto __unalloc;
524 snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
525 snd_runtime_check(!kctl->get(kctl, uctl), goto __unalloc);
526 snd_runtime_check(uinfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN || uinfo->value.integer.min != 0 || uinfo->value.integer.max != 1, goto __unalloc);
527 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
528 if (uinfo->count > 1)
529 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
530 __unalloc:
531 up_read(&card->controls_rwsem);
532 kfree(uctl);
533 kfree(uinfo);
534 }
535
536 static void snd_mixer_oss_get_volume1_sw(snd_mixer_oss_file_t *fmixer,
537 snd_mixer_oss_slot_t *pslot,
538 unsigned int numid,
539 int *left, int *right,
540 int route)
541 {
542 snd_ctl_elem_info_t *uinfo;
543 snd_ctl_elem_value_t *uctl;
544 snd_kcontrol_t *kctl;
545 snd_card_t *card = fmixer->card;
546
547 if (numid == ID_UNKNOWN)
548 return;
549 down_read(&card->controls_rwsem);
550 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
551 up_read(&card->controls_rwsem);
552 return;
553 }
554 uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
555 uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
556 if (uinfo == NULL || uctl == NULL)
557 goto __unalloc;
558 snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
559 snd_runtime_check(!kctl->get(kctl, uctl), 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(snd_mixer_oss_file_t *fmixer,
574 snd_mixer_oss_slot_t *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(snd_mixer_oss_file_t *fmixer,
600 snd_mixer_oss_slot_t *pslot,
601 unsigned int numid,
602 int left, int right)
603 {
604 snd_ctl_elem_info_t *uinfo;
605 snd_ctl_elem_value_t *uctl;
606 snd_kcontrol_t *kctl;
607 snd_card_t *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 = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
616 uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
617 if (uinfo == NULL || uctl == NULL)
618 goto __unalloc;
619 snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
620 snd_runtime_check(uinfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN || uinfo->value.integer.min != 0 || uinfo->value.integer.max != 1, goto __unalloc);
621 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
622 if (uinfo->count > 1)
623 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
624 snd_runtime_check((res = kctl->put(kctl, uctl)) >= 0, goto __unalloc);
625 if (res > 0)
626 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
627 __unalloc:
628 up_read(&card->controls_rwsem);
629 kfree(uctl);
630 kfree(uinfo);
631 }
632
633 static void snd_mixer_oss_put_volume1_sw(snd_mixer_oss_file_t *fmixer,
634 snd_mixer_oss_slot_t *pslot,
635 unsigned int numid,
636 int left, int right,
637 int route)
638 {
639 snd_ctl_elem_info_t *uinfo;
640 snd_ctl_elem_value_t *uctl;
641 snd_kcontrol_t *kctl;
642 snd_card_t *card = fmixer->card;
643 int res;
644
645 if (numid == ID_UNKNOWN)
646 return;
647 down_read(&card->controls_rwsem);
648 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
649 up_read(&fmixer->card->controls_rwsem);
650 return;
651 }
652 uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
653 uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
654 if (uinfo == NULL || uctl == NULL)
655 goto __unalloc;
656 snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
657 if (uinfo->count > 1) {
658 uctl->value.integer.value[0] = left > 0 ? 1 : 0;
659 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
660 if (route) {
661 uctl->value.integer.value[1] =
662 uctl->value.integer.value[2] = 0;
663 }
664 } else {
665 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
666 }
667 snd_runtime_check((res = kctl->put(kctl, uctl)) >= 0, 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
676 static int snd_mixer_oss_put_volume1(snd_mixer_oss_file_t *fmixer,
677 snd_mixer_oss_slot_t *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_GVOLUME) {
687 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
688 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
689 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
690 }
691 if (left || right) {
692 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
693 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
694 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
695 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
696 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
697 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
698 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
699 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
700 } else {
701 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
702 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
703 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
704 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
705 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
706 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
707 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
708 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
709 }
710 }
711 return 0;
712 }
713
714 static int snd_mixer_oss_get_recsrc1_sw(snd_mixer_oss_file_t *fmixer,
715 snd_mixer_oss_slot_t *pslot,
716 int *active)
717 {
718 struct slot *slot = (struct slot *)pslot->private_data;
719 int left, right;
720
721 left = right = 1;
722 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
723 *active = (left || right) ? 1 : 0;
724 return 0;
725 }
726
727 static int snd_mixer_oss_get_recsrc1_route(snd_mixer_oss_file_t *fmixer,
728 snd_mixer_oss_slot_t *pslot,
729 int *active)
730 {
731 struct slot *slot = (struct slot *)pslot->private_data;
732 int left, right;
733
734 left = right = 1;
735 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
736 *active = (left || right) ? 1 : 0;
737 return 0;
738 }
739
740 static int snd_mixer_oss_put_recsrc1_sw(snd_mixer_oss_file_t *fmixer,
741 snd_mixer_oss_slot_t *pslot,
742 int active)
743 {
744 struct slot *slot = (struct slot *)pslot->private_data;
745
746 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
747 return 0;
748 }
749
750 static int snd_mixer_oss_put_recsrc1_route(snd_mixer_oss_file_t *fmixer,
751 snd_mixer_oss_slot_t *pslot,
752 int active)
753 {
754 struct slot *slot = (struct slot *)pslot->private_data;
755
756 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
757 return 0;
758 }
759
760 static int snd_mixer_oss_get_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int *active_index)
761 {
762 snd_card_t *card = fmixer->card;
763 snd_mixer_oss_t *mixer = fmixer->mixer;
764 snd_kcontrol_t *kctl;
765 snd_mixer_oss_slot_t *pslot;
766 struct slot *slot;
767 snd_ctl_elem_info_t *uinfo;
768 snd_ctl_elem_value_t *uctl;
769 int err, idx;
770
771 uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
772 uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
773 if (uinfo == NULL || uctl == NULL) {
774 err = -ENOMEM;
775 goto __unlock;
776 }
777 down_read(&card->controls_rwsem);
778 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
779 snd_runtime_check(kctl != NULL, err = -ENOENT; goto __unlock);
780 snd_runtime_check(!(err = kctl->info(kctl, uinfo)), goto __unlock);
781 snd_runtime_check(!(err = kctl->get(kctl, uctl)), goto __unlock);
782 for (idx = 0; idx < 32; idx++) {
783 if (!(mixer->mask_recsrc & (1 << idx)))
784 continue;
785 pslot = &mixer->slots[idx];
786 slot = (struct slot *)pslot->private_data;
787 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
788 continue;
789 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
790 continue;
791 if (slot->capture_item == uctl->value.enumerated.item[0]) {
792 *active_index = idx;
793 break;
794 }
795 }
796 err = 0;
797 __unlock:
798 up_read(&card->controls_rwsem);
799 kfree(uctl);
800 kfree(uinfo);
801 return err;
802 }
803
804 static int snd_mixer_oss_put_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int active_index)
805 {
806 snd_card_t *card = fmixer->card;
807 snd_mixer_oss_t *mixer = fmixer->mixer;
808 snd_kcontrol_t *kctl;
809 snd_mixer_oss_slot_t *pslot;
810 struct slot *slot = NULL;
811 snd_ctl_elem_info_t *uinfo;
812 snd_ctl_elem_value_t *uctl;
813 int err;
814 unsigned int idx;
815
816 uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
817 uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
818 if (uinfo == NULL || uctl == NULL) {
819 err = -ENOMEM;
820 goto __unlock;
821 }
822 down_read(&card->controls_rwsem);
823 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
824 snd_runtime_check(kctl != NULL, err = -ENOENT; goto __unlock);
825 snd_runtime_check(!(err = kctl->info(kctl, uinfo)), goto __unlock);
826 for (idx = 0; idx < 32; idx++) {
827 if (!(mixer->mask_recsrc & (1 << idx)))
828 continue;
829 pslot = &mixer->slots[idx];
830 slot = (struct slot *)pslot->private_data;
831 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
832 continue;
833 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
834 continue;
835 if (idx == active_index)
836 break;
837 slot = NULL;
838 }
839 snd_runtime_check(slot != NULL, goto __unlock);
840 for (idx = 0; idx < uinfo->count; idx++)
841 uctl->value.enumerated.item[idx] = slot->capture_item;
842 snd_runtime_check((err = kctl->put(kctl, uctl)) >= 0, );
843 if (err > 0)
844 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
845 err = 0;
846 __unlock:
847 up_read(&card->controls_rwsem);
848 kfree(uctl);
849 kfree(uinfo);
850 return err;
851 }
852
853 struct snd_mixer_oss_assign_table {
854 int oss_id;
855 const char *name;
856 int index;
857 };
858
859 static int snd_mixer_oss_build_test(snd_mixer_oss_t *mixer, struct slot *slot, const char *name, int index, int item)
860 {
861 snd_ctl_elem_info_t *info;
862 snd_kcontrol_t *kcontrol;
863 snd_card_t *card = mixer->card;
864 int err;
865
866 down_read(&card->controls_rwsem);
867 kcontrol = snd_mixer_oss_test_id(mixer, name, index);
868 if (kcontrol == NULL) {
869 up_read(&card->controls_rwsem);
870 return 0;
871 }
872 info = kmalloc(sizeof(*info), GFP_KERNEL);
873 if (! info) {
874 up_read(&card->controls_rwsem);
875 return -ENOMEM;
876 }
877 if ((err = kcontrol->info(kcontrol, info)) < 0) {
878 up_read(&card->controls_rwsem);
879 kfree(info);
880 return err;
881 }
882 slot->numid[item] = kcontrol->id.numid;
883 up_read(&card->controls_rwsem);
884 if (info->count > slot->channels)
885 slot->channels = info->count;
886 slot->present |= 1 << item;
887 kfree(info);
888 return 0;
889 }
890
891 static void snd_mixer_oss_slot_free(snd_mixer_oss_slot_t *chn)
892 {
893 struct slot *p = (struct slot *)chn->private_data;
894 if (p) {
895 if (p->allocated && p->assigned) {
896 kfree(p->assigned->name);
897 kfree(p->assigned);
898 }
899 kfree(p);
900 }
901 }
902
903 static void mixer_slot_clear(snd_mixer_oss_slot_t *rslot)
904 {
905 int idx = rslot->number; /* remember this */
906 if (rslot->private_free)
907 rslot->private_free(rslot);
908 memset(rslot, 0, sizeof(*rslot));
909 rslot->number = idx;
910 }
911
912 /*
913 * build an OSS mixer element.
914 * ptr_allocated means the entry is dynamically allocated (change via proc file).
915 * when replace_old = 1, the old entry is replaced with the new one.
916 */
917 static int snd_mixer_oss_build_input(snd_mixer_oss_t *mixer, struct snd_mixer_oss_assign_table *ptr, int ptr_allocated, int replace_old)
918 {
919 struct slot slot;
920 struct slot *pslot;
921 snd_kcontrol_t *kctl;
922 snd_mixer_oss_slot_t *rslot;
923 char str[64];
924
925 /* check if already assigned */
926 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
927 return 0;
928
929 memset(&slot, 0, sizeof(slot));
930 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
931 if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index,
932 SNDRV_MIXER_OSS_ITEM_GLOBAL))
933 return 0;
934 sprintf(str, "%s Switch", ptr->name);
935 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
936 SNDRV_MIXER_OSS_ITEM_GSWITCH))
937 return 0;
938 sprintf(str, "%s Route", ptr->name);
939 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
940 SNDRV_MIXER_OSS_ITEM_GROUTE))
941 return 0;
942 sprintf(str, "%s Volume", ptr->name);
943 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
944 SNDRV_MIXER_OSS_ITEM_GVOLUME))
945 return 0;
946 sprintf(str, "%s Playback Switch", ptr->name);
947 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
948 SNDRV_MIXER_OSS_ITEM_PSWITCH))
949 return 0;
950 sprintf(str, "%s Playback Route", ptr->name);
951 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
952 SNDRV_MIXER_OSS_ITEM_PROUTE))
953 return 0;
954 sprintf(str, "%s Playback Volume", ptr->name);
955 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
956 SNDRV_MIXER_OSS_ITEM_PVOLUME))
957 return 0;
958 sprintf(str, "%s Capture Switch", ptr->name);
959 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
960 SNDRV_MIXER_OSS_ITEM_CSWITCH))
961 return 0;
962 sprintf(str, "%s Capture Route", ptr->name);
963 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
964 SNDRV_MIXER_OSS_ITEM_CROUTE))
965 return 0;
966 sprintf(str, "%s Capture Volume", ptr->name);
967 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
968 SNDRV_MIXER_OSS_ITEM_CVOLUME))
969 return 0;
970 down_read(&mixer->card->controls_rwsem);
971 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
972 snd_ctl_elem_info_t *uinfo;
973
974 uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL);
975 if (! uinfo) {
976 up_read(&mixer->card->controls_rwsem);
977 return -ENOMEM;
978 }
979
980 memset(uinfo, 0, sizeof(*uinfo));
981 if (kctl->info(kctl, uinfo)) {
982 up_read(&mixer->card->controls_rwsem);
983 return 0;
984 }
985 strcpy(str, ptr->name);
986 if (!strcmp(str, "Master"))
987 strcpy(str, "Mix");
988 if (!strcmp(str, "Master Mono"))
989 strcpy(str, "Mix Mono");
990 slot.capture_item = 0;
991 if (!strcmp(uinfo->value.enumerated.name, str)) {
992 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
993 } else {
994 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
995 uinfo->value.enumerated.item = slot.capture_item;
996 if (kctl->info(kctl, uinfo)) {
997 up_read(&mixer->card->controls_rwsem);
998 return 0;
999 }
1000 if (!strcmp(uinfo->value.enumerated.name, str)) {
1001 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1002 break;
1003 }
1004 }
1005 }
1006 kfree(uinfo);
1007 }
1008 up_read(&mixer->card->controls_rwsem);
1009 if (slot.present != 0) {
1010 pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL);
1011 snd_runtime_check(pslot != NULL, return -ENOMEM);
1012 *pslot = slot;
1013 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
1014 pslot->assigned = ptr;
1015 pslot->allocated = ptr_allocated;
1016 rslot = &mixer->slots[ptr->oss_id];
1017 mixer_slot_clear(rslot);
1018 rslot->stereo = slot.channels > 1 ? 1 : 0;
1019 rslot->get_volume = snd_mixer_oss_get_volume1;
1020 rslot->put_volume = snd_mixer_oss_put_volume1;
1021 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */
1022 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
1023 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
1024 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
1025 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
1026 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
1027 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
1028 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
1029 mixer->mask_recsrc |= 1 << ptr->oss_id;
1030 }
1031 rslot->private_data = pslot;
1032 rslot->private_free = snd_mixer_oss_slot_free;
1033 return 1;
1034 }
1035 return 0;
1036 }
1037
1038 /*
1039 */
1040 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
1041 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
1042 MIXER_VOL(VOLUME),
1043 MIXER_VOL(BASS),
1044 MIXER_VOL(TREBLE),
1045 MIXER_VOL(SYNTH),
1046 MIXER_VOL(PCM),
1047 MIXER_VOL(SPEAKER),
1048 MIXER_VOL(LINE),
1049 MIXER_VOL(MIC),
1050 MIXER_VOL(CD),
1051 MIXER_VOL(IMIX),
1052 MIXER_VOL(ALTPCM),
1053 MIXER_VOL(RECLEV),
1054 MIXER_VOL(IGAIN),
1055 MIXER_VOL(OGAIN),
1056 MIXER_VOL(LINE1),
1057 MIXER_VOL(LINE2),
1058 MIXER_VOL(LINE3),
1059 MIXER_VOL(DIGITAL1),
1060 MIXER_VOL(DIGITAL2),
1061 MIXER_VOL(DIGITAL3),
1062 MIXER_VOL(PHONEIN),
1063 MIXER_VOL(PHONEOUT),
1064 MIXER_VOL(VIDEO),
1065 MIXER_VOL(RADIO),
1066 MIXER_VOL(MONITOR),
1067 };
1068
1069 /*
1070 * /proc interface
1071 */
1072
1073 static void snd_mixer_oss_proc_read(snd_info_entry_t *entry,
1074 snd_info_buffer_t * buffer)
1075 {
1076 snd_mixer_oss_t *mixer = entry->private_data;
1077 int i;
1078
1079 down(&mixer->reg_mutex);
1080 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
1081 struct slot *p;
1082
1083 if (! oss_mixer_names[i])
1084 continue;
1085 p = (struct slot *)mixer->slots[i].private_data;
1086 snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
1087 if (p && p->assigned)
1088 snd_iprintf(buffer, "\"%s\" %d\n",
1089 p->assigned->name,
1090 p->assigned->index);
1091 else
1092 snd_iprintf(buffer, "\"\" 0\n");
1093 }
1094 up(&mixer->reg_mutex);
1095 }
1096
1097 static void snd_mixer_oss_proc_write(snd_info_entry_t *entry,
1098 snd_info_buffer_t * buffer)
1099 {
1100 snd_mixer_oss_t *mixer = entry->private_data;
1101 char line[128], str[32], idxstr[16], *cptr;
1102 int ch, idx;
1103 struct snd_mixer_oss_assign_table *tbl;
1104 struct slot *slot;
1105
1106 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1107 cptr = snd_info_get_str(str, line, sizeof(str));
1108 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
1109 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
1110 break;
1111 if (ch >= SNDRV_OSS_MAX_MIXERS) {
1112 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
1113 continue;
1114 }
1115 cptr = snd_info_get_str(str, cptr, sizeof(str));
1116 if (! *str) {
1117 /* remove the entry */
1118 down(&mixer->reg_mutex);
1119 mixer_slot_clear(&mixer->slots[ch]);
1120 up(&mixer->reg_mutex);
1121 continue;
1122 }
1123 snd_info_get_str(idxstr, cptr, sizeof(idxstr));
1124 idx = simple_strtoul(idxstr, NULL, 10);
1125 if (idx >= 0x4000) { /* too big */
1126 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
1127 continue;
1128 }
1129 down(&mixer->reg_mutex);
1130 slot = (struct slot *)mixer->slots[ch].private_data;
1131 if (slot && slot->assigned &&
1132 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
1133 /* not changed */
1134 goto __unlock;
1135 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
1136 if (! tbl) {
1137 snd_printk(KERN_ERR "mixer_oss: no memory\n");
1138 goto __unlock;
1139 }
1140 tbl->oss_id = ch;
1141 tbl->name = kstrdup(str, GFP_KERNEL);
1142 if (! tbl->name) {
1143 kfree(tbl);
1144 goto __unlock;
1145 }
1146 tbl->index = idx;
1147 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
1148 kfree(tbl->name);
1149 kfree(tbl);
1150 }
1151 __unlock:
1152 up(&mixer->reg_mutex);
1153 }
1154 }
1155
1156 static void snd_mixer_oss_proc_init(snd_mixer_oss_t *mixer)
1157 {
1158 snd_info_entry_t *entry;
1159
1160 entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
1161 mixer->card->proc_root);
1162 if (! entry)
1163 return;
1164 entry->content = SNDRV_INFO_CONTENT_TEXT;
1165 entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
1166 entry->c.text.read_size = 8192;
1167 entry->c.text.read = snd_mixer_oss_proc_read;
1168 entry->c.text.write_size = 8192;
1169 entry->c.text.write = snd_mixer_oss_proc_write;
1170 entry->private_data = mixer;
1171 if (snd_info_register(entry) < 0) {
1172 snd_info_free_entry(entry);
1173 entry = NULL;
1174 }
1175 mixer->proc_entry = entry;
1176 }
1177
1178 static void snd_mixer_oss_proc_done(snd_mixer_oss_t *mixer)
1179 {
1180 if (mixer->proc_entry) {
1181 snd_info_unregister(mixer->proc_entry);
1182 mixer->proc_entry = NULL;
1183 }
1184 }
1185
1186 static void snd_mixer_oss_build(snd_mixer_oss_t *mixer)
1187 {
1188 static struct snd_mixer_oss_assign_table table[] = {
1189 { SOUND_MIXER_VOLUME, "Master", 0 },
1190 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
1191 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
1192 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
1193 { SOUND_MIXER_SYNTH, "Synth", 0 },
1194 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
1195 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
1196 { SOUND_MIXER_PCM, "PCM", 0 },
1197 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 },
1198 { SOUND_MIXER_LINE, "Line", 0 },
1199 { SOUND_MIXER_MIC, "Mic", 0 },
1200 { SOUND_MIXER_CD, "CD", 0 },
1201 { SOUND_MIXER_IMIX, "Monitor Mix", 0 },
1202 { SOUND_MIXER_ALTPCM, "PCM", 1 },
1203 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
1204 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
1205 { SOUND_MIXER_RECLEV, "-- nothing --", 0 },
1206 { SOUND_MIXER_IGAIN, "Capture", 0 },
1207 { SOUND_MIXER_OGAIN, "Playback", 0 },
1208 { SOUND_MIXER_LINE1, "Aux", 0 },
1209 { SOUND_MIXER_LINE2, "Aux", 1 },
1210 { SOUND_MIXER_LINE3, "Aux", 2 },
1211 { SOUND_MIXER_DIGITAL1, "Digital", 0 },
1212 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
1213 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
1214 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
1215 { SOUND_MIXER_DIGITAL2, "Digital", 1 },
1216 { SOUND_MIXER_DIGITAL3, "Digital", 2 },
1217 { SOUND_MIXER_PHONEIN, "Phone", 0 },
1218 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
1219 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
1220 { SOUND_MIXER_VIDEO, "Video", 0 },
1221 { SOUND_MIXER_RADIO, "Radio", 0 },
1222 { SOUND_MIXER_MONITOR, "Monitor", 0 }
1223 };
1224 unsigned int idx;
1225
1226 for (idx = 0; idx < ARRAY_SIZE(table); idx++)
1227 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
1228 if (mixer->mask_recsrc) {
1229 mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
1230 mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
1231 }
1232 }
1233
1234 /*
1235 *
1236 */
1237
1238 static int snd_mixer_oss_free1(void *private)
1239 {
1240 snd_mixer_oss_t *mixer = private;
1241 snd_card_t * card;
1242 int idx;
1243
1244 snd_assert(mixer != NULL, return -ENXIO);
1245 card = mixer->card;
1246 snd_assert(mixer == card->mixer_oss, return -ENXIO);
1247 card->mixer_oss = NULL;
1248 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
1249 snd_mixer_oss_slot_t *chn = &mixer->slots[idx];
1250 if (chn->private_free)
1251 chn->private_free(chn);
1252 }
1253 kfree(mixer);
1254 return 0;
1255 }
1256
1257 static int snd_mixer_oss_notify_handler(snd_card_t * card, int cmd)
1258 {
1259 snd_mixer_oss_t *mixer;
1260
1261 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
1262 char name[128];
1263 int idx, err;
1264
1265 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
1266 if (mixer == NULL)
1267 return -ENOMEM;
1268 init_MUTEX(&mixer->reg_mutex);
1269 sprintf(name, "mixer%i%i", card->number, 0);
1270 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
1271 card, 0,
1272 &snd_mixer_oss_reg,
1273 name)) < 0) {
1274 snd_printk("unable to register OSS mixer device %i:%i\n", card->number, 0);
1275 kfree(mixer);
1276 return err;
1277 }
1278 mixer->oss_dev_alloc = 1;
1279 mixer->card = card;
1280 if (*card->mixername)
1281 strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
1282 else
1283 strlcpy(mixer->name, name, sizeof(mixer->name));
1284 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1285 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
1286 card->number,
1287 mixer->name);
1288 #endif
1289 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
1290 mixer->slots[idx].number = idx;
1291 card->mixer_oss = mixer;
1292 snd_mixer_oss_build(mixer);
1293 snd_mixer_oss_proc_init(mixer);
1294 } else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) {
1295 mixer = card->mixer_oss;
1296 if (mixer == NULL || !mixer->oss_dev_alloc)
1297 return 0;
1298 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1299 mixer->oss_dev_alloc = 0;
1300 } else { /* free */
1301 mixer = card->mixer_oss;
1302 if (mixer == NULL)
1303 return 0;
1304 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1305 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
1306 #endif
1307 if (mixer->oss_dev_alloc)
1308 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1309 snd_mixer_oss_proc_done(mixer);
1310 return snd_mixer_oss_free1(mixer);
1311 }
1312 return 0;
1313 }
1314
1315 static int __init alsa_mixer_oss_init(void)
1316 {
1317 int idx;
1318
1319 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
1320 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1321 if (snd_cards[idx])
1322 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
1323 }
1324 return 0;
1325 }
1326
1327 static void __exit alsa_mixer_oss_exit(void)
1328 {
1329 int idx;
1330
1331 snd_mixer_oss_notify_callback = NULL;
1332 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1333 if (snd_cards[idx])
1334 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
1335 }
1336 }
1337
1338 module_init(alsa_mixer_oss_init)
1339 module_exit(alsa_mixer_oss_exit)
1340
1341 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);
linux-next