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[ALSA] Remove snd_runtime_check() macro
[linux-2.6/verdex.git] / sound / core / oss / mixer_oss.c
blobb2497cec20796a76c8942258ac94e9b4616c8251
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 = 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 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 = kzalloc(sizeof(*uinfo), GFP_KERNEL);
521 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
522 if (uinfo == NULL || uctl == NULL)
523 goto __unalloc;
524 if (kctl->info(kctl, uinfo))
525 goto __unalloc;
526 if (kctl->get(kctl, uctl))
527 goto __unalloc;
528 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
529 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
530 goto __unalloc;
531 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
532 if (uinfo->count > 1)
533 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
534 __unalloc:
535 up_read(&card->controls_rwsem);
536 kfree(uctl);
537 kfree(uinfo);
538 }
539
540 static void snd_mixer_oss_get_volume1_sw(snd_mixer_oss_file_t *fmixer,
541 snd_mixer_oss_slot_t *pslot,
542 unsigned int numid,
543 int *left, int *right,
544 int route)
545 {
546 snd_ctl_elem_info_t *uinfo;
547 snd_ctl_elem_value_t *uctl;
548 snd_kcontrol_t *kctl;
549 snd_card_t *card = fmixer->card;
550
551 if (numid == ID_UNKNOWN)
552 return;
553 down_read(&card->controls_rwsem);
554 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
555 up_read(&card->controls_rwsem);
556 return;
557 }
558 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
559 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
560 if (uinfo == NULL || uctl == NULL)
561 goto __unalloc;
562 if (kctl->info(kctl, uinfo))
563 goto __unalloc;
564 if (kctl->get(kctl, uctl))
565 goto __unalloc;
566 if (!uctl->value.integer.value[0]) {
567 *left = 0;
568 if (uinfo->count == 1)
569 *right = 0;
570 }
571 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
572 *right = 0;
573 __unalloc:
574 up_read(&card->controls_rwsem);
575 kfree(uctl);
576 kfree(uinfo);
577 }
578
579 static int snd_mixer_oss_get_volume1(snd_mixer_oss_file_t *fmixer,
580 snd_mixer_oss_slot_t *pslot,
581 int *left, int *right)
582 {
583 struct slot *slot = (struct slot *)pslot->private_data;
584
585 *left = *right = 100;
586 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
587 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
588 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
589 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
590 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
591 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
592 }
593 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
594 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
595 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
596 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
597 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
598 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
599 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
600 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
601 }
602 return 0;
603 }
604
605 static void snd_mixer_oss_put_volume1_vol(snd_mixer_oss_file_t *fmixer,
606 snd_mixer_oss_slot_t *pslot,
607 unsigned int numid,
608 int left, int right)
609 {
610 snd_ctl_elem_info_t *uinfo;
611 snd_ctl_elem_value_t *uctl;
612 snd_kcontrol_t *kctl;
613 snd_card_t *card = fmixer->card;
614 int res;
615
616 if (numid == ID_UNKNOWN)
617 return;
618 down_read(&card->controls_rwsem);
619 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL)
620 return;
621 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
622 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
623 if (uinfo == NULL || uctl == NULL)
624 goto __unalloc;
625 if (kctl->info(kctl, uinfo))
626 goto __unalloc;
627 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
628 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
629 goto __unalloc;
630 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
631 if (uinfo->count > 1)
632 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
633 if ((res = kctl->put(kctl, uctl)) < 0)
634 goto __unalloc;
635 if (res > 0)
636 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
637 __unalloc:
638 up_read(&card->controls_rwsem);
639 kfree(uctl);
640 kfree(uinfo);
641 }
642
643 static void snd_mixer_oss_put_volume1_sw(snd_mixer_oss_file_t *fmixer,
644 snd_mixer_oss_slot_t *pslot,
645 unsigned int numid,
646 int left, int right,
647 int route)
648 {
649 snd_ctl_elem_info_t *uinfo;
650 snd_ctl_elem_value_t *uctl;
651 snd_kcontrol_t *kctl;
652 snd_card_t *card = fmixer->card;
653 int res;
654
655 if (numid == ID_UNKNOWN)
656 return;
657 down_read(&card->controls_rwsem);
658 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
659 up_read(&fmixer->card->controls_rwsem);
660 return;
661 }
662 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
663 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
664 if (uinfo == NULL || uctl == NULL)
665 goto __unalloc;
666 if (kctl->info(kctl, uinfo))
667 goto __unalloc;
668 if (uinfo->count > 1) {
669 uctl->value.integer.value[0] = left > 0 ? 1 : 0;
670 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
671 if (route) {
672 uctl->value.integer.value[1] =
673 uctl->value.integer.value[2] = 0;
674 }
675 } else {
676 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
677 }
678 if ((res = kctl->put(kctl, uctl)) < 0)
679 goto __unalloc;
680 if (res > 0)
681 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
682 __unalloc:
683 up_read(&card->controls_rwsem);
684 kfree(uctl);
685 kfree(uinfo);
686 }
687
688 static int snd_mixer_oss_put_volume1(snd_mixer_oss_file_t *fmixer,
689 snd_mixer_oss_slot_t *pslot,
690 int left, int right)
691 {
692 struct slot *slot = (struct slot *)pslot->private_data;
693
694 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
695 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
696 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
697 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
698 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
699 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
700 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
701 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
702 }
703 if (left || right) {
704 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
705 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
706 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
707 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
708 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
709 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
710 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
711 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
712 } else {
713 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
714 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
715 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
716 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
717 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
718 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
719 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
720 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
721 }
722 }
723 return 0;
724 }
725
726 static int snd_mixer_oss_get_recsrc1_sw(snd_mixer_oss_file_t *fmixer,
727 snd_mixer_oss_slot_t *pslot,
728 int *active)
729 {
730 struct slot *slot = (struct slot *)pslot->private_data;
731 int left, right;
732
733 left = right = 1;
734 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
735 *active = (left || right) ? 1 : 0;
736 return 0;
737 }
738
739 static int snd_mixer_oss_get_recsrc1_route(snd_mixer_oss_file_t *fmixer,
740 snd_mixer_oss_slot_t *pslot,
741 int *active)
742 {
743 struct slot *slot = (struct slot *)pslot->private_data;
744 int left, right;
745
746 left = right = 1;
747 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
748 *active = (left || right) ? 1 : 0;
749 return 0;
750 }
751
752 static int snd_mixer_oss_put_recsrc1_sw(snd_mixer_oss_file_t *fmixer,
753 snd_mixer_oss_slot_t *pslot,
754 int active)
755 {
756 struct slot *slot = (struct slot *)pslot->private_data;
757
758 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
759 return 0;
760 }
761
762 static int snd_mixer_oss_put_recsrc1_route(snd_mixer_oss_file_t *fmixer,
763 snd_mixer_oss_slot_t *pslot,
764 int active)
765 {
766 struct slot *slot = (struct slot *)pslot->private_data;
767
768 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
769 return 0;
770 }
771
772 static int snd_mixer_oss_get_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int *active_index)
773 {
774 snd_card_t *card = fmixer->card;
775 snd_mixer_oss_t *mixer = fmixer->mixer;
776 snd_kcontrol_t *kctl;
777 snd_mixer_oss_slot_t *pslot;
778 struct slot *slot;
779 snd_ctl_elem_info_t *uinfo;
780 snd_ctl_elem_value_t *uctl;
781 int err, idx;
782
783 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
784 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
785 if (uinfo == NULL || uctl == NULL) {
786 err = -ENOMEM;
787 goto __unlock;
788 }
789 down_read(&card->controls_rwsem);
790 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
791 if (! kctl) {
792 err = -ENOENT;
793 goto __unlock;
794 }
795 if ((err = kctl->info(kctl, uinfo)) < 0)
796 goto __unlock;
797 if ((err = kctl->get(kctl, uctl)) < 0)
798 goto __unlock;
799 for (idx = 0; idx < 32; idx++) {
800 if (!(mixer->mask_recsrc & (1 << idx)))
801 continue;
802 pslot = &mixer->slots[idx];
803 slot = (struct slot *)pslot->private_data;
804 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
805 continue;
806 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
807 continue;
808 if (slot->capture_item == uctl->value.enumerated.item[0]) {
809 *active_index = idx;
810 break;
811 }
812 }
813 err = 0;
814 __unlock:
815 up_read(&card->controls_rwsem);
816 kfree(uctl);
817 kfree(uinfo);
818 return err;
819 }
820
821 static int snd_mixer_oss_put_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int active_index)
822 {
823 snd_card_t *card = fmixer->card;
824 snd_mixer_oss_t *mixer = fmixer->mixer;
825 snd_kcontrol_t *kctl;
826 snd_mixer_oss_slot_t *pslot;
827 struct slot *slot = NULL;
828 snd_ctl_elem_info_t *uinfo;
829 snd_ctl_elem_value_t *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 __unlock;
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 kfree(uctl);
871 kfree(uinfo);
872 return err;
873 }
874
875 struct snd_mixer_oss_assign_table {
876 int oss_id;
877 const char *name;
878 int index;
879 };
880
881 static int snd_mixer_oss_build_test(snd_mixer_oss_t *mixer, struct slot *slot, const char *name, int index, int item)
882 {
883 snd_ctl_elem_info_t *info;
884 snd_kcontrol_t *kcontrol;
885 snd_card_t *card = mixer->card;
886 int err;
887
888 down_read(&card->controls_rwsem);
889 kcontrol = snd_mixer_oss_test_id(mixer, name, index);
890 if (kcontrol == NULL) {
891 up_read(&card->controls_rwsem);
892 return 0;
893 }
894 info = kmalloc(sizeof(*info), GFP_KERNEL);
895 if (! info) {
896 up_read(&card->controls_rwsem);
897 return -ENOMEM;
898 }
899 if ((err = kcontrol->info(kcontrol, info)) < 0) {
900 up_read(&card->controls_rwsem);
901 kfree(info);
902 return err;
903 }
904 slot->numid[item] = kcontrol->id.numid;
905 up_read(&card->controls_rwsem);
906 if (info->count > slot->channels)
907 slot->channels = info->count;
908 slot->present |= 1 << item;
909 kfree(info);
910 return 0;
911 }
912
913 static void snd_mixer_oss_slot_free(snd_mixer_oss_slot_t *chn)
914 {
915 struct slot *p = (struct slot *)chn->private_data;
916 if (p) {
917 if (p->allocated && p->assigned) {
918 kfree(p->assigned->name);
919 kfree(p->assigned);
920 }
921 kfree(p);
922 }
923 }
924
925 static void mixer_slot_clear(snd_mixer_oss_slot_t *rslot)
926 {
927 int idx = rslot->number; /* remember this */
928 if (rslot->private_free)
929 rslot->private_free(rslot);
930 memset(rslot, 0, sizeof(*rslot));
931 rslot->number = idx;
932 }
933
934 /*
935 * build an OSS mixer element.
936 * ptr_allocated means the entry is dynamically allocated (change via proc file).
937 * when replace_old = 1, the old entry is replaced with the new one.
938 */
939 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)
940 {
941 struct slot slot;
942 struct slot *pslot;
943 snd_kcontrol_t *kctl;
944 snd_mixer_oss_slot_t *rslot;
945 char str[64];
946
947 /* check if already assigned */
948 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
949 return 0;
950
951 memset(&slot, 0, sizeof(slot));
952 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
953 if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index,
954 SNDRV_MIXER_OSS_ITEM_GLOBAL))
955 return 0;
956 sprintf(str, "%s Switch", ptr->name);
957 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
958 SNDRV_MIXER_OSS_ITEM_GSWITCH))
959 return 0;
960 sprintf(str, "%s Route", ptr->name);
961 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
962 SNDRV_MIXER_OSS_ITEM_GROUTE))
963 return 0;
964 sprintf(str, "%s Volume", ptr->name);
965 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
966 SNDRV_MIXER_OSS_ITEM_GVOLUME))
967 return 0;
968 sprintf(str, "%s Playback Switch", ptr->name);
969 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
970 SNDRV_MIXER_OSS_ITEM_PSWITCH))
971 return 0;
972 sprintf(str, "%s Playback Route", ptr->name);
973 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
974 SNDRV_MIXER_OSS_ITEM_PROUTE))
975 return 0;
976 sprintf(str, "%s Playback Volume", ptr->name);
977 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
978 SNDRV_MIXER_OSS_ITEM_PVOLUME))
979 return 0;
980 sprintf(str, "%s Capture Switch", ptr->name);
981 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
982 SNDRV_MIXER_OSS_ITEM_CSWITCH))
983 return 0;
984 sprintf(str, "%s Capture Route", ptr->name);
985 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
986 SNDRV_MIXER_OSS_ITEM_CROUTE))
987 return 0;
988 sprintf(str, "%s Capture Volume", ptr->name);
989 if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
990 SNDRV_MIXER_OSS_ITEM_CVOLUME))
991 return 0;
992 down_read(&mixer->card->controls_rwsem);
993 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
994 snd_ctl_elem_info_t *uinfo;
995
996 uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL);
997 if (! uinfo) {
998 up_read(&mixer->card->controls_rwsem);
999 return -ENOMEM;
1000 }
1001
1002 memset(uinfo, 0, sizeof(*uinfo));
1003 if (kctl->info(kctl, uinfo)) {
1004 up_read(&mixer->card->controls_rwsem);
1005 return 0;
1006 }
1007 strcpy(str, ptr->name);
1008 if (!strcmp(str, "Master"))
1009 strcpy(str, "Mix");
1010 if (!strcmp(str, "Master Mono"))
1011 strcpy(str, "Mix Mono");
1012 slot.capture_item = 0;
1013 if (!strcmp(uinfo->value.enumerated.name, str)) {
1014 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1015 } else {
1016 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
1017 uinfo->value.enumerated.item = slot.capture_item;
1018 if (kctl->info(kctl, uinfo)) {
1019 up_read(&mixer->card->controls_rwsem);
1020 return 0;
1021 }
1022 if (!strcmp(uinfo->value.enumerated.name, str)) {
1023 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1024 break;
1025 }
1026 }
1027 }
1028 kfree(uinfo);
1029 }
1030 up_read(&mixer->card->controls_rwsem);
1031 if (slot.present != 0) {
1032 pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL);
1033 if (! pslot)
1034 return -ENOMEM;
1035 *pslot = slot;
1036 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
1037 pslot->assigned = ptr;
1038 pslot->allocated = ptr_allocated;
1039 rslot = &mixer->slots[ptr->oss_id];
1040 mixer_slot_clear(rslot);
1041 rslot->stereo = slot.channels > 1 ? 1 : 0;
1042 rslot->get_volume = snd_mixer_oss_get_volume1;
1043 rslot->put_volume = snd_mixer_oss_put_volume1;
1044 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */
1045 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
1046 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
1047 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
1048 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
1049 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
1050 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
1051 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
1052 mixer->mask_recsrc |= 1 << ptr->oss_id;
1053 }
1054 rslot->private_data = pslot;
1055 rslot->private_free = snd_mixer_oss_slot_free;
1056 return 1;
1057 }
1058 return 0;
1059 }
1060
1061 /*
1062 */
1063 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
1064 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
1065 MIXER_VOL(VOLUME),
1066 MIXER_VOL(BASS),
1067 MIXER_VOL(TREBLE),
1068 MIXER_VOL(SYNTH),
1069 MIXER_VOL(PCM),
1070 MIXER_VOL(SPEAKER),
1071 MIXER_VOL(LINE),
1072 MIXER_VOL(MIC),
1073 MIXER_VOL(CD),
1074 MIXER_VOL(IMIX),
1075 MIXER_VOL(ALTPCM),
1076 MIXER_VOL(RECLEV),
1077 MIXER_VOL(IGAIN),
1078 MIXER_VOL(OGAIN),
1079 MIXER_VOL(LINE1),
1080 MIXER_VOL(LINE2),
1081 MIXER_VOL(LINE3),
1082 MIXER_VOL(DIGITAL1),
1083 MIXER_VOL(DIGITAL2),
1084 MIXER_VOL(DIGITAL3),
1085 MIXER_VOL(PHONEIN),
1086 MIXER_VOL(PHONEOUT),
1087 MIXER_VOL(VIDEO),
1088 MIXER_VOL(RADIO),
1089 MIXER_VOL(MONITOR),
1090 };
1091
1092 /*
1093 * /proc interface
1094 */
1095
1096 static void snd_mixer_oss_proc_read(snd_info_entry_t *entry,
1097 snd_info_buffer_t * buffer)
1098 {
1099 snd_mixer_oss_t *mixer = entry->private_data;
1100 int i;
1101
1102 down(&mixer->reg_mutex);
1103 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
1104 struct slot *p;
1105
1106 if (! oss_mixer_names[i])
1107 continue;
1108 p = (struct slot *)mixer->slots[i].private_data;
1109 snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
1110 if (p && p->assigned)
1111 snd_iprintf(buffer, "\"%s\" %d\n",
1112 p->assigned->name,
1113 p->assigned->index);
1114 else
1115 snd_iprintf(buffer, "\"\" 0\n");
1116 }
1117 up(&mixer->reg_mutex);
1118 }
1119
1120 static void snd_mixer_oss_proc_write(snd_info_entry_t *entry,
1121 snd_info_buffer_t * buffer)
1122 {
1123 snd_mixer_oss_t *mixer = entry->private_data;
1124 char line[128], str[32], idxstr[16], *cptr;
1125 int ch, idx;
1126 struct snd_mixer_oss_assign_table *tbl;
1127 struct slot *slot;
1128
1129 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1130 cptr = snd_info_get_str(str, line, sizeof(str));
1131 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
1132 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
1133 break;
1134 if (ch >= SNDRV_OSS_MAX_MIXERS) {
1135 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
1136 continue;
1137 }
1138 cptr = snd_info_get_str(str, cptr, sizeof(str));
1139 if (! *str) {
1140 /* remove the entry */
1141 down(&mixer->reg_mutex);
1142 mixer_slot_clear(&mixer->slots[ch]);
1143 up(&mixer->reg_mutex);
1144 continue;
1145 }
1146 snd_info_get_str(idxstr, cptr, sizeof(idxstr));
1147 idx = simple_strtoul(idxstr, NULL, 10);
1148 if (idx >= 0x4000) { /* too big */
1149 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
1150 continue;
1151 }
1152 down(&mixer->reg_mutex);
1153 slot = (struct slot *)mixer->slots[ch].private_data;
1154 if (slot && slot->assigned &&
1155 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
1156 /* not changed */
1157 goto __unlock;
1158 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
1159 if (! tbl) {
1160 snd_printk(KERN_ERR "mixer_oss: no memory\n");
1161 goto __unlock;
1162 }
1163 tbl->oss_id = ch;
1164 tbl->name = kstrdup(str, GFP_KERNEL);
1165 if (! tbl->name) {
1166 kfree(tbl);
1167 goto __unlock;
1168 }
1169 tbl->index = idx;
1170 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
1171 kfree(tbl->name);
1172 kfree(tbl);
1173 }
1174 __unlock:
1175 up(&mixer->reg_mutex);
1176 }
1177 }
1178
1179 static void snd_mixer_oss_proc_init(snd_mixer_oss_t *mixer)
1180 {
1181 snd_info_entry_t *entry;
1182
1183 entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
1184 mixer->card->proc_root);
1185 if (! entry)
1186 return;
1187 entry->content = SNDRV_INFO_CONTENT_TEXT;
1188 entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
1189 entry->c.text.read_size = 8192;
1190 entry->c.text.read = snd_mixer_oss_proc_read;
1191 entry->c.text.write_size = 8192;
1192 entry->c.text.write = snd_mixer_oss_proc_write;
1193 entry->private_data = mixer;
1194 if (snd_info_register(entry) < 0) {
1195 snd_info_free_entry(entry);
1196 entry = NULL;
1197 }
1198 mixer->proc_entry = entry;
1199 }
1200
1201 static void snd_mixer_oss_proc_done(snd_mixer_oss_t *mixer)
1202 {
1203 if (mixer->proc_entry) {
1204 snd_info_unregister(mixer->proc_entry);
1205 mixer->proc_entry = NULL;
1206 }
1207 }
1208
1209 static void snd_mixer_oss_build(snd_mixer_oss_t *mixer)
1210 {
1211 static struct snd_mixer_oss_assign_table table[] = {
1212 { SOUND_MIXER_VOLUME, "Master", 0 },
1213 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
1214 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
1215 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
1216 { SOUND_MIXER_SYNTH, "Synth", 0 },
1217 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
1218 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
1219 { SOUND_MIXER_PCM, "PCM", 0 },
1220 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 },
1221 { SOUND_MIXER_LINE, "Line", 0 },
1222 { SOUND_MIXER_MIC, "Mic", 0 },
1223 { SOUND_MIXER_CD, "CD", 0 },
1224 { SOUND_MIXER_IMIX, "Monitor Mix", 0 },
1225 { SOUND_MIXER_ALTPCM, "PCM", 1 },
1226 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
1227 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
1228 { SOUND_MIXER_RECLEV, "-- nothing --", 0 },
1229 { SOUND_MIXER_IGAIN, "Capture", 0 },
1230 { SOUND_MIXER_OGAIN, "Playback", 0 },
1231 { SOUND_MIXER_LINE1, "Aux", 0 },
1232 { SOUND_MIXER_LINE2, "Aux", 1 },
1233 { SOUND_MIXER_LINE3, "Aux", 2 },
1234 { SOUND_MIXER_DIGITAL1, "Digital", 0 },
1235 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
1236 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
1237 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
1238 { SOUND_MIXER_DIGITAL2, "Digital", 1 },
1239 { SOUND_MIXER_DIGITAL3, "Digital", 2 },
1240 { SOUND_MIXER_PHONEIN, "Phone", 0 },
1241 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
1242 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
1243 { SOUND_MIXER_VIDEO, "Video", 0 },
1244 { SOUND_MIXER_RADIO, "Radio", 0 },
1245 { SOUND_MIXER_MONITOR, "Monitor", 0 }
1246 };
1247 unsigned int idx;
1248
1249 for (idx = 0; idx < ARRAY_SIZE(table); idx++)
1250 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
1251 if (mixer->mask_recsrc) {
1252 mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
1253 mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
1254 }
1255 }
1256
1257 /*
1258 *
1259 */
1260
1261 static int snd_mixer_oss_free1(void *private)
1262 {
1263 snd_mixer_oss_t *mixer = private;
1264 snd_card_t * card;
1265 int idx;
1266
1267 snd_assert(mixer != NULL, return -ENXIO);
1268 card = mixer->card;
1269 snd_assert(mixer == card->mixer_oss, return -ENXIO);
1270 card->mixer_oss = NULL;
1271 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
1272 snd_mixer_oss_slot_t *chn = &mixer->slots[idx];
1273 if (chn->private_free)
1274 chn->private_free(chn);
1275 }
1276 kfree(mixer);
1277 return 0;
1278 }
1279
1280 static int snd_mixer_oss_notify_handler(snd_card_t * card, int cmd)
1281 {
1282 snd_mixer_oss_t *mixer;
1283
1284 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
1285 char name[128];
1286 int idx, err;
1287
1288 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
1289 if (mixer == NULL)
1290 return -ENOMEM;
1291 init_MUTEX(&mixer->reg_mutex);
1292 sprintf(name, "mixer%i%i", card->number, 0);
1293 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
1294 card, 0,
1295 &snd_mixer_oss_reg,
1296 name)) < 0) {
1297 snd_printk("unable to register OSS mixer device %i:%i\n", card->number, 0);
1298 kfree(mixer);
1299 return err;
1300 }
1301 mixer->oss_dev_alloc = 1;
1302 mixer->card = card;
1303 if (*card->mixername)
1304 strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
1305 else
1306 strlcpy(mixer->name, name, sizeof(mixer->name));
1307 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1308 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
1309 card->number,
1310 mixer->name);
1311 #endif
1312 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
1313 mixer->slots[idx].number = idx;
1314 card->mixer_oss = mixer;
1315 snd_mixer_oss_build(mixer);
1316 snd_mixer_oss_proc_init(mixer);
1317 } else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) {
1318 mixer = card->mixer_oss;
1319 if (mixer == NULL || !mixer->oss_dev_alloc)
1320 return 0;
1321 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1322 mixer->oss_dev_alloc = 0;
1323 } else { /* free */
1324 mixer = card->mixer_oss;
1325 if (mixer == NULL)
1326 return 0;
1327 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1328 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
1329 #endif
1330 if (mixer->oss_dev_alloc)
1331 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1332 snd_mixer_oss_proc_done(mixer);
1333 return snd_mixer_oss_free1(mixer);
1334 }
1335 return 0;
1336 }
1337
1338 static int __init alsa_mixer_oss_init(void)
1339 {
1340 int idx;
1341
1342 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
1343 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1344 if (snd_cards[idx])
1345 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
1346 }
1347 return 0;
1348 }
1349
1350 static void __exit alsa_mixer_oss_exit(void)
1351 {
1352 int idx;
1353
1354 snd_mixer_oss_notify_callback = NULL;
1355 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1356 if (snd_cards[idx])
1357 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
1358 }
1359 }
1360
1361 module_init(alsa_mixer_oss_init)
1362 module_exit(alsa_mixer_oss_exit)
1363
1364 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);
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