2 * OSS emulation layer for the mixer interface
3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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.
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.
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
22 #include <linux/init.h>
23 #include <linux/slab.h>
24 #include <linux/time.h>
25 #include <linux/string.h>
26 #include <sound/core.h>
27 #include <sound/minors.h>
28 #include <sound/control.h>
29 #include <sound/info.h>
30 #include <sound/mixer_oss.h>
31 #include <linux/soundcard.h>
33 #define OSS_ALSAEMULVER _SIOR ('M', 249, int)
35 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
36 MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
37 MODULE_LICENSE("GPL");
38 MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
40 static int snd_mixer_oss_open(struct inode *inode, struct file *file)
42 struct snd_card *card;
43 struct snd_mixer_oss_file *fmixer;
46 err = nonseekable_open(inode, file);
50 card = snd_lookup_oss_minor_data(iminor(inode),
51 SNDRV_OSS_DEVICE_TYPE_MIXER);
54 if (card->mixer_oss == NULL)
56 err = snd_card_file_add(card, file);
59 fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
61 snd_card_file_remove(card, file);
65 fmixer->mixer = card->mixer_oss;
66 file->private_data = fmixer;
67 if (!try_module_get(card->module)) {
69 snd_card_file_remove(card, file);
75 static int snd_mixer_oss_release(struct inode *inode, struct file *file)
77 struct snd_mixer_oss_file *fmixer;
79 if (file->private_data) {
80 fmixer = file->private_data;
81 module_put(fmixer->card->module);
82 snd_card_file_remove(fmixer->card, file);
88 static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer,
89 mixer_info __user *_info)
91 struct snd_card *card = fmixer->card;
92 struct snd_mixer_oss *mixer = fmixer->mixer;
93 struct mixer_info info;
95 memset(&info, 0, sizeof(info));
96 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
97 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
98 info.modify_counter = card->mixer_oss_change_count;
99 if (copy_to_user(_info, &info, sizeof(info)))
104 static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer,
105 _old_mixer_info __user *_info)
107 struct snd_card *card = fmixer->card;
108 struct snd_mixer_oss *mixer = fmixer->mixer;
109 _old_mixer_info info;
111 memset(&info, 0, sizeof(info));
112 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
113 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
114 if (copy_to_user(_info, &info, sizeof(info)))
119 static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer)
121 struct snd_mixer_oss *mixer = fmixer->mixer;
126 if (mixer->get_recsrc && mixer->put_recsrc)
127 result |= SOUND_CAP_EXCL_INPUT;
131 static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer)
133 struct snd_mixer_oss *mixer = fmixer->mixer;
134 struct snd_mixer_oss_slot *pslot;
139 for (chn = 0; chn < 31; chn++) {
140 pslot = &mixer->slots[chn];
141 if (pslot->put_volume || pslot->put_recsrc)
147 static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer)
149 struct snd_mixer_oss *mixer = fmixer->mixer;
150 struct snd_mixer_oss_slot *pslot;
155 for (chn = 0; chn < 31; chn++) {
156 pslot = &mixer->slots[chn];
157 if (pslot->put_volume && pslot->stereo)
163 static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
165 struct snd_mixer_oss *mixer = fmixer->mixer;
170 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
171 result = mixer->mask_recsrc;
173 struct snd_mixer_oss_slot *pslot;
175 for (chn = 0; chn < 31; chn++) {
176 pslot = &mixer->slots[chn];
177 if (pslot->put_recsrc)
184 static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
186 struct snd_mixer_oss *mixer = fmixer->mixer;
191 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
193 if ((err = mixer->get_recsrc(fmixer, &result)) < 0)
195 result = 1 << result;
197 struct snd_mixer_oss_slot *pslot;
199 for (chn = 0; chn < 31; chn++) {
200 pslot = &mixer->slots[chn];
201 if (pslot->get_recsrc) {
203 pslot->get_recsrc(fmixer, pslot, &active);
209 return mixer->oss_recsrc = result;
212 static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc)
214 struct snd_mixer_oss *mixer = fmixer->mixer;
215 struct snd_mixer_oss_slot *pslot;
221 if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */
222 if (recsrc & ~mixer->oss_recsrc)
223 recsrc &= ~mixer->oss_recsrc;
224 mixer->put_recsrc(fmixer, ffz(~recsrc));
225 mixer->get_recsrc(fmixer, &result);
226 result = 1 << result;
228 for (chn = 0; chn < 31; chn++) {
229 pslot = &mixer->slots[chn];
230 if (pslot->put_recsrc) {
231 active = (recsrc & (1 << chn)) ? 1 : 0;
232 pslot->put_recsrc(fmixer, pslot, active);
236 for (chn = 0; chn < 31; chn++) {
237 pslot = &mixer->slots[chn];
238 if (pslot->get_recsrc) {
240 pslot->get_recsrc(fmixer, pslot, &active);
249 static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
251 struct snd_mixer_oss *mixer = fmixer->mixer;
252 struct snd_mixer_oss_slot *pslot;
253 int result = 0, left, right;
255 if (mixer == NULL || slot > 30)
257 pslot = &mixer->slots[slot];
258 left = pslot->volume[0];
259 right = pslot->volume[1];
260 if (pslot->get_volume)
261 result = pslot->get_volume(fmixer, pslot, &left, &right);
264 if (snd_BUG_ON(left < 0 || left > 100))
266 if (snd_BUG_ON(right < 0 || right > 100))
269 pslot->volume[0] = left;
270 pslot->volume[1] = right;
271 result = (left & 0xff) | ((right & 0xff) << 8);
276 static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
277 int slot, int volume)
279 struct snd_mixer_oss *mixer = fmixer->mixer;
280 struct snd_mixer_oss_slot *pslot;
281 int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff;
283 if (mixer == NULL || slot > 30)
285 pslot = &mixer->slots[slot];
292 if (pslot->put_volume)
293 result = pslot->put_volume(fmixer, pslot, left, right);
296 pslot->volume[0] = left;
297 pslot->volume[1] = right;
298 return (left & 0xff) | ((right & 0xff) << 8);
301 static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
303 void __user *argp = (void __user *)arg;
304 int __user *p = argp;
307 if (snd_BUG_ON(!fmixer))
309 if (((cmd >> 8) & 0xff) == 'M') {
311 case SOUND_MIXER_INFO:
312 return snd_mixer_oss_info(fmixer, argp);
313 case SOUND_OLD_MIXER_INFO:
314 return snd_mixer_oss_info_obsolete(fmixer, argp);
315 case SOUND_MIXER_WRITE_RECSRC:
316 if (get_user(tmp, p))
318 tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
321 return put_user(tmp, p);
323 return put_user(SNDRV_OSS_VERSION, p);
324 case OSS_ALSAEMULVER:
325 return put_user(1, p);
326 case SOUND_MIXER_READ_DEVMASK:
327 tmp = snd_mixer_oss_devmask(fmixer);
330 return put_user(tmp, p);
331 case SOUND_MIXER_READ_STEREODEVS:
332 tmp = snd_mixer_oss_stereodevs(fmixer);
335 return put_user(tmp, p);
336 case SOUND_MIXER_READ_RECMASK:
337 tmp = snd_mixer_oss_recmask(fmixer);
340 return put_user(tmp, p);
341 case SOUND_MIXER_READ_CAPS:
342 tmp = snd_mixer_oss_caps(fmixer);
345 return put_user(tmp, p);
346 case SOUND_MIXER_READ_RECSRC:
347 tmp = snd_mixer_oss_get_recsrc(fmixer);
350 return put_user(tmp, p);
354 if (get_user(tmp, p))
356 tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
359 return put_user(tmp, p);
360 } else if (cmd & SIOC_OUT) {
361 tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
364 return put_user(tmp, p);
369 static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
371 return snd_mixer_oss_ioctl1(file->private_data, cmd, arg);
374 int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
376 struct snd_mixer_oss_file fmixer;
378 if (snd_BUG_ON(!card))
380 if (card->mixer_oss == NULL)
382 memset(&fmixer, 0, sizeof(fmixer));
384 fmixer.mixer = card->mixer_oss;
385 return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
390 #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl
392 #define snd_mixer_oss_ioctl_compat NULL
399 static const struct file_operations snd_mixer_oss_f_ops =
401 .owner = THIS_MODULE,
402 .open = snd_mixer_oss_open,
403 .release = snd_mixer_oss_release,
405 .unlocked_ioctl = snd_mixer_oss_ioctl,
406 .compat_ioctl = snd_mixer_oss_ioctl_compat,
413 static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
415 long orange = omax - omin, nrange = nmax - nmin;
419 return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
422 /* convert from alsa native to oss values (0-100) */
423 static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
425 if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
427 return snd_mixer_oss_conv(val, min, max, 0, 100);
430 /* convert from oss to alsa native values */
431 static long snd_mixer_oss_conv2(long val, long min, long max)
433 return snd_mixer_oss_conv(val, 0, 100, min, max);
437 static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot)
439 struct snd_mixer_oss *mixer = card->mixer_oss;
441 mixer->mask_recsrc |= 1 << slot;
444 static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot)
446 struct snd_mixer_oss *mixer = card->mixer_oss;
447 if (mixer && (mixer->mask_recsrc & (1 << slot)))
453 #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250
455 #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0
456 #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1
457 #define SNDRV_MIXER_OSS_ITEM_GROUTE 2
458 #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3
459 #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4
460 #define SNDRV_MIXER_OSS_ITEM_PROUTE 5
461 #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6
462 #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7
463 #define SNDRV_MIXER_OSS_ITEM_CROUTE 8
464 #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9
465 #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10
467 #define SNDRV_MIXER_OSS_ITEM_COUNT 11
469 #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0)
470 #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1)
471 #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2)
472 #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3)
473 #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4)
474 #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5)
475 #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6)
476 #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7)
477 #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8)
478 #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9)
479 #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10)
482 unsigned int signature;
483 unsigned int present;
484 unsigned int channels;
485 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
486 unsigned int capture_item;
487 struct snd_mixer_oss_assign_table *assigned;
488 unsigned int allocated: 1;
491 #define ID_UNKNOWN ((unsigned int)-1)
493 static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index)
495 struct snd_card *card = mixer->card;
496 struct snd_ctl_elem_id id;
498 memset(&id, 0, sizeof(id));
499 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
500 strcpy(id.name, name);
502 return snd_ctl_find_id(card, &id);
505 static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer,
506 struct snd_mixer_oss_slot *pslot,
508 int *left, int *right)
510 struct snd_ctl_elem_info *uinfo;
511 struct snd_ctl_elem_value *uctl;
512 struct snd_kcontrol *kctl;
513 struct snd_card *card = fmixer->card;
515 if (numid == ID_UNKNOWN)
517 down_read(&card->controls_rwsem);
518 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
519 up_read(&card->controls_rwsem);
522 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
523 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
524 if (uinfo == NULL || uctl == NULL)
526 if (kctl->info(kctl, uinfo))
528 if (kctl->get(kctl, uctl))
530 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
531 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
533 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
534 if (uinfo->count > 1)
535 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
537 up_read(&card->controls_rwsem);
542 static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer,
543 struct snd_mixer_oss_slot *pslot,
545 int *left, int *right,
548 struct snd_ctl_elem_info *uinfo;
549 struct snd_ctl_elem_value *uctl;
550 struct snd_kcontrol *kctl;
551 struct snd_card *card = fmixer->card;
553 if (numid == ID_UNKNOWN)
555 down_read(&card->controls_rwsem);
556 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
557 up_read(&card->controls_rwsem);
560 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
561 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
562 if (uinfo == NULL || uctl == NULL)
564 if (kctl->info(kctl, uinfo))
566 if (kctl->get(kctl, uctl))
568 if (!uctl->value.integer.value[0]) {
570 if (uinfo->count == 1)
573 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
576 up_read(&card->controls_rwsem);
581 static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
582 struct snd_mixer_oss_slot *pslot,
583 int *left, int *right)
585 struct slot *slot = pslot->private_data;
587 *left = *right = 100;
588 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
589 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
590 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
591 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
592 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
593 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
595 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
596 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
597 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
598 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
599 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
600 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
601 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
602 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
607 static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
608 struct snd_mixer_oss_slot *pslot,
612 struct snd_ctl_elem_info *uinfo;
613 struct snd_ctl_elem_value *uctl;
614 struct snd_kcontrol *kctl;
615 struct snd_card *card = fmixer->card;
618 if (numid == ID_UNKNOWN)
620 down_read(&card->controls_rwsem);
621 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
622 up_read(&card->controls_rwsem);
625 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
626 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
627 if (uinfo == NULL || uctl == NULL)
629 if (kctl->info(kctl, uinfo))
631 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
632 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
634 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
635 if (uinfo->count > 1)
636 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
637 if ((res = kctl->put(kctl, uctl)) < 0)
640 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
642 up_read(&card->controls_rwsem);
647 static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
648 struct snd_mixer_oss_slot *pslot,
653 struct snd_ctl_elem_info *uinfo;
654 struct snd_ctl_elem_value *uctl;
655 struct snd_kcontrol *kctl;
656 struct snd_card *card = fmixer->card;
659 if (numid == ID_UNKNOWN)
661 down_read(&card->controls_rwsem);
662 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
663 up_read(&card->controls_rwsem);
666 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
667 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
668 if (uinfo == NULL || uctl == NULL)
670 if (kctl->info(kctl, uinfo))
672 if (uinfo->count > 1) {
673 uctl->value.integer.value[0] = left > 0 ? 1 : 0;
674 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
676 uctl->value.integer.value[1] =
677 uctl->value.integer.value[2] = 0;
680 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
682 if ((res = kctl->put(kctl, uctl)) < 0)
685 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
687 up_read(&card->controls_rwsem);
692 static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
693 struct snd_mixer_oss_slot *pslot,
696 struct slot *slot = pslot->private_data;
698 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
699 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
700 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
701 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
702 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) {
703 snd_mixer_oss_put_volume1_vol(fmixer, pslot,
704 slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
705 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
706 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
707 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
708 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
711 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
712 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
713 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH)
714 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
715 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 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 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE)
720 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
721 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
722 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
724 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
725 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
726 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
727 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
728 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
729 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
730 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
731 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
732 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
733 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
734 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
735 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
741 static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
742 struct snd_mixer_oss_slot *pslot,
745 struct slot *slot = pslot->private_data;
749 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
750 *active = (left || right) ? 1 : 0;
754 static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
755 struct snd_mixer_oss_slot *pslot,
758 struct slot *slot = pslot->private_data;
762 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
763 *active = (left || right) ? 1 : 0;
767 static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
768 struct snd_mixer_oss_slot *pslot,
771 struct slot *slot = pslot->private_data;
773 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
777 static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
778 struct snd_mixer_oss_slot *pslot,
781 struct slot *slot = pslot->private_data;
783 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
787 static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index)
789 struct snd_card *card = fmixer->card;
790 struct snd_mixer_oss *mixer = fmixer->mixer;
791 struct snd_kcontrol *kctl;
792 struct snd_mixer_oss_slot *pslot;
794 struct snd_ctl_elem_info *uinfo;
795 struct snd_ctl_elem_value *uctl;
798 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
799 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
800 if (uinfo == NULL || uctl == NULL) {
804 down_read(&card->controls_rwsem);
805 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
810 if ((err = kctl->info(kctl, uinfo)) < 0)
812 if ((err = kctl->get(kctl, uctl)) < 0)
814 for (idx = 0; idx < 32; idx++) {
815 if (!(mixer->mask_recsrc & (1 << idx)))
817 pslot = &mixer->slots[idx];
818 slot = pslot->private_data;
819 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
821 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
823 if (slot->capture_item == uctl->value.enumerated.item[0]) {
830 up_read(&card->controls_rwsem);
837 static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index)
839 struct snd_card *card = fmixer->card;
840 struct snd_mixer_oss *mixer = fmixer->mixer;
841 struct snd_kcontrol *kctl;
842 struct snd_mixer_oss_slot *pslot;
843 struct slot *slot = NULL;
844 struct snd_ctl_elem_info *uinfo;
845 struct snd_ctl_elem_value *uctl;
849 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
850 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
851 if (uinfo == NULL || uctl == NULL) {
855 down_read(&card->controls_rwsem);
856 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
861 if ((err = kctl->info(kctl, uinfo)) < 0)
863 for (idx = 0; idx < 32; idx++) {
864 if (!(mixer->mask_recsrc & (1 << idx)))
866 pslot = &mixer->slots[idx];
867 slot = pslot->private_data;
868 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
870 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
872 if (idx == active_index)
878 for (idx = 0; idx < uinfo->count; idx++)
879 uctl->value.enumerated.item[idx] = slot->capture_item;
880 err = kctl->put(kctl, uctl);
882 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
885 up_read(&card->controls_rwsem);
892 struct snd_mixer_oss_assign_table {
898 static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item)
900 struct snd_ctl_elem_info *info;
901 struct snd_kcontrol *kcontrol;
902 struct snd_card *card = mixer->card;
905 down_read(&card->controls_rwsem);
906 kcontrol = snd_mixer_oss_test_id(mixer, name, index);
907 if (kcontrol == NULL) {
908 up_read(&card->controls_rwsem);
911 info = kmalloc(sizeof(*info), GFP_KERNEL);
913 up_read(&card->controls_rwsem);
916 if ((err = kcontrol->info(kcontrol, info)) < 0) {
917 up_read(&card->controls_rwsem);
921 slot->numid[item] = kcontrol->id.numid;
922 up_read(&card->controls_rwsem);
923 if (info->count > slot->channels)
924 slot->channels = info->count;
925 slot->present |= 1 << item;
930 static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
932 struct slot *p = chn->private_data;
934 if (p->allocated && p->assigned) {
935 kfree(p->assigned->name);
942 static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
944 int idx = rslot->number; /* remember this */
945 if (rslot->private_free)
946 rslot->private_free(rslot);
947 memset(rslot, 0, sizeof(*rslot));
951 /* In a separate function to keep gcc 3.2 happy - do NOT merge this in
952 snd_mixer_oss_build_input! */
953 static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer,
954 struct snd_mixer_oss_assign_table *ptr,
960 err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index,
961 SNDRV_MIXER_OSS_ITEM_GLOBAL);
964 sprintf(str, "%s Switch", ptr->name);
965 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
966 SNDRV_MIXER_OSS_ITEM_GSWITCH);
969 sprintf(str, "%s Route", ptr->name);
970 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
971 SNDRV_MIXER_OSS_ITEM_GROUTE);
974 sprintf(str, "%s Volume", ptr->name);
975 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
976 SNDRV_MIXER_OSS_ITEM_GVOLUME);
979 sprintf(str, "%s Playback Switch", ptr->name);
980 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
981 SNDRV_MIXER_OSS_ITEM_PSWITCH);
984 sprintf(str, "%s Playback Route", ptr->name);
985 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
986 SNDRV_MIXER_OSS_ITEM_PROUTE);
989 sprintf(str, "%s Playback Volume", ptr->name);
990 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
991 SNDRV_MIXER_OSS_ITEM_PVOLUME);
994 sprintf(str, "%s Capture Switch", ptr->name);
995 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
996 SNDRV_MIXER_OSS_ITEM_CSWITCH);
999 sprintf(str, "%s Capture Route", ptr->name);
1000 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
1001 SNDRV_MIXER_OSS_ITEM_CROUTE);
1004 sprintf(str, "%s Capture Volume", ptr->name);
1005 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
1006 SNDRV_MIXER_OSS_ITEM_CVOLUME);
1014 * build an OSS mixer element.
1015 * ptr_allocated means the entry is dynamically allocated (change via proc file).
1016 * when replace_old = 1, the old entry is replaced with the new one.
1018 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)
1022 struct snd_kcontrol *kctl;
1023 struct snd_mixer_oss_slot *rslot;
1026 /* check if already assigned */
1027 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
1030 memset(&slot, 0, sizeof(slot));
1031 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
1032 if (snd_mixer_oss_build_test_all(mixer, ptr, &slot))
1034 down_read(&mixer->card->controls_rwsem);
1035 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
1036 struct snd_ctl_elem_info *uinfo;
1038 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
1040 up_read(&mixer->card->controls_rwsem);
1044 if (kctl->info(kctl, uinfo)) {
1045 up_read(&mixer->card->controls_rwsem);
1048 strcpy(str, ptr->name);
1049 if (!strcmp(str, "Master"))
1051 if (!strcmp(str, "Master Mono"))
1052 strcpy(str, "Mix Mono");
1053 slot.capture_item = 0;
1054 if (!strcmp(uinfo->value.enumerated.name, str)) {
1055 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1057 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
1058 uinfo->value.enumerated.item = slot.capture_item;
1059 if (kctl->info(kctl, uinfo)) {
1060 up_read(&mixer->card->controls_rwsem);
1063 if (!strcmp(uinfo->value.enumerated.name, str)) {
1064 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1071 up_read(&mixer->card->controls_rwsem);
1072 if (slot.present != 0) {
1073 pslot = kmalloc(sizeof(slot), GFP_KERNEL);
1077 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
1078 pslot->assigned = ptr;
1079 pslot->allocated = ptr_allocated;
1080 rslot = &mixer->slots[ptr->oss_id];
1081 mixer_slot_clear(rslot);
1082 rslot->stereo = slot.channels > 1 ? 1 : 0;
1083 rslot->get_volume = snd_mixer_oss_get_volume1;
1084 rslot->put_volume = snd_mixer_oss_put_volume1;
1085 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */
1086 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
1087 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
1088 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
1089 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
1090 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
1091 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
1092 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
1093 mixer->mask_recsrc |= 1 << ptr->oss_id;
1095 rslot->private_data = pslot;
1096 rslot->private_free = snd_mixer_oss_slot_free;
1102 #ifdef CONFIG_PROC_FS
1105 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
1106 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
1124 MIXER_VOL(DIGITAL1),
1125 MIXER_VOL(DIGITAL2),
1126 MIXER_VOL(DIGITAL3),
1128 MIXER_VOL(PHONEOUT),
1138 static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
1139 struct snd_info_buffer *buffer)
1141 struct snd_mixer_oss *mixer = entry->private_data;
1144 mutex_lock(&mixer->reg_mutex);
1145 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
1148 if (! oss_mixer_names[i])
1150 p = (struct slot *)mixer->slots[i].private_data;
1151 snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
1152 if (p && p->assigned)
1153 snd_iprintf(buffer, "\"%s\" %d\n",
1155 p->assigned->index);
1157 snd_iprintf(buffer, "\"\" 0\n");
1159 mutex_unlock(&mixer->reg_mutex);
1162 static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
1163 struct snd_info_buffer *buffer)
1165 struct snd_mixer_oss *mixer = entry->private_data;
1166 char line[128], str[32], idxstr[16];
1169 struct snd_mixer_oss_assign_table *tbl;
1172 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1173 cptr = snd_info_get_str(str, line, sizeof(str));
1174 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
1175 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
1177 if (ch >= SNDRV_OSS_MAX_MIXERS) {
1178 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
1181 cptr = snd_info_get_str(str, cptr, sizeof(str));
1183 /* remove the entry */
1184 mutex_lock(&mixer->reg_mutex);
1185 mixer_slot_clear(&mixer->slots[ch]);
1186 mutex_unlock(&mixer->reg_mutex);
1189 snd_info_get_str(idxstr, cptr, sizeof(idxstr));
1190 idx = simple_strtoul(idxstr, NULL, 10);
1191 if (idx >= 0x4000) { /* too big */
1192 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
1195 mutex_lock(&mixer->reg_mutex);
1196 slot = (struct slot *)mixer->slots[ch].private_data;
1197 if (slot && slot->assigned &&
1198 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
1201 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
1203 snd_printk(KERN_ERR "mixer_oss: no memory\n");
1207 tbl->name = kstrdup(str, GFP_KERNEL);
1213 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
1218 mutex_unlock(&mixer->reg_mutex);
1222 static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
1224 struct snd_info_entry *entry;
1226 entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
1227 mixer->card->proc_root);
1230 entry->content = SNDRV_INFO_CONTENT_TEXT;
1231 entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
1232 entry->c.text.read = snd_mixer_oss_proc_read;
1233 entry->c.text.write = snd_mixer_oss_proc_write;
1234 entry->private_data = mixer;
1235 if (snd_info_register(entry) < 0) {
1236 snd_info_free_entry(entry);
1239 mixer->proc_entry = entry;
1242 static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
1244 snd_info_free_entry(mixer->proc_entry);
1245 mixer->proc_entry = NULL;
1247 #else /* !CONFIG_PROC_FS */
1248 #define snd_mixer_oss_proc_init(mix)
1249 #define snd_mixer_oss_proc_done(mix)
1250 #endif /* CONFIG_PROC_FS */
1252 static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
1254 static struct snd_mixer_oss_assign_table table[] = {
1255 { SOUND_MIXER_VOLUME, "Master", 0 },
1256 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
1257 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
1258 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
1259 { SOUND_MIXER_SYNTH, "Synth", 0 },
1260 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
1261 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
1262 { SOUND_MIXER_PCM, "PCM", 0 },
1263 { SOUND_MIXER_SPEAKER, "Beep", 0 },
1264 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */
1265 { SOUND_MIXER_SPEAKER, "Speaker", 0 }, /* fallback */
1266 { SOUND_MIXER_LINE, "Line", 0 },
1267 { SOUND_MIXER_MIC, "Mic", 0 },
1268 { SOUND_MIXER_CD, "CD", 0 },
1269 { SOUND_MIXER_IMIX, "Monitor Mix", 0 },
1270 { SOUND_MIXER_ALTPCM, "PCM", 1 },
1271 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
1272 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
1273 { SOUND_MIXER_RECLEV, "-- nothing --", 0 },
1274 { SOUND_MIXER_IGAIN, "Capture", 0 },
1275 { SOUND_MIXER_OGAIN, "Playback", 0 },
1276 { SOUND_MIXER_LINE1, "Aux", 0 },
1277 { SOUND_MIXER_LINE2, "Aux", 1 },
1278 { SOUND_MIXER_LINE3, "Aux", 2 },
1279 { SOUND_MIXER_DIGITAL1, "Digital", 0 },
1280 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
1281 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
1282 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
1283 { SOUND_MIXER_DIGITAL2, "Digital", 1 },
1284 { SOUND_MIXER_DIGITAL3, "Digital", 2 },
1285 { SOUND_MIXER_PHONEIN, "Phone", 0 },
1286 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
1287 { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/
1288 { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/
1289 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
1290 { SOUND_MIXER_VIDEO, "Video", 0 },
1291 { SOUND_MIXER_RADIO, "Radio", 0 },
1292 { SOUND_MIXER_MONITOR, "Monitor", 0 }
1296 for (idx = 0; idx < ARRAY_SIZE(table); idx++)
1297 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
1298 if (mixer->mask_recsrc) {
1299 mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
1300 mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
1308 static int snd_mixer_oss_free1(void *private)
1310 struct snd_mixer_oss *mixer = private;
1311 struct snd_card *card;
1317 if (snd_BUG_ON(mixer != card->mixer_oss))
1319 card->mixer_oss = NULL;
1320 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
1321 struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
1322 if (chn->private_free)
1323 chn->private_free(chn);
1329 static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
1331 struct snd_mixer_oss *mixer;
1333 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
1337 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
1340 mutex_init(&mixer->reg_mutex);
1341 sprintf(name, "mixer%i%i", card->number, 0);
1342 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
1344 &snd_mixer_oss_f_ops, card,
1346 snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n",
1351 mixer->oss_dev_alloc = 1;
1353 if (*card->mixername)
1354 strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
1356 strlcpy(mixer->name, name, sizeof(mixer->name));
1357 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1358 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
1362 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
1363 mixer->slots[idx].number = idx;
1364 card->mixer_oss = mixer;
1365 snd_mixer_oss_build(mixer);
1366 snd_mixer_oss_proc_init(mixer);
1368 mixer = card->mixer_oss;
1371 if (mixer->oss_dev_alloc) {
1372 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1373 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
1375 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1376 mixer->oss_dev_alloc = 0;
1378 if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)
1380 snd_mixer_oss_proc_done(mixer);
1381 return snd_mixer_oss_free1(mixer);
1386 static int __init alsa_mixer_oss_init(void)
1390 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
1391 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1393 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
1398 static void __exit alsa_mixer_oss_exit(void)
1402 snd_mixer_oss_notify_callback = NULL;
1403 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1405 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
1409 module_init(alsa_mixer_oss_init)
1410 module_exit(alsa_mixer_oss_exit)
1412 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);