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 <linux/module.h>
27 #include <sound/core.h>
28 #include <sound/minors.h>
29 #include <sound/control.h>
30 #include <sound/info.h>
31 #include <sound/mixer_oss.h>
32 #include <linux/soundcard.h>
34 #define OSS_ALSAEMULVER _SIOR ('M', 249, int)
36 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
37 MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
38 MODULE_LICENSE("GPL");
39 MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
41 static int snd_mixer_oss_open(struct inode *inode, struct file *file)
43 struct snd_card *card;
44 struct snd_mixer_oss_file *fmixer;
47 err = nonseekable_open(inode, file);
51 card = snd_lookup_oss_minor_data(iminor(inode),
52 SNDRV_OSS_DEVICE_TYPE_MIXER);
55 if (card->mixer_oss == NULL)
57 err = snd_card_file_add(card, file);
60 fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
62 snd_card_file_remove(card, file);
66 fmixer->mixer = card->mixer_oss;
67 file->private_data = fmixer;
68 if (!try_module_get(card->module)) {
70 snd_card_file_remove(card, file);
76 static int snd_mixer_oss_release(struct inode *inode, struct file *file)
78 struct snd_mixer_oss_file *fmixer;
80 if (file->private_data) {
81 fmixer = file->private_data;
82 module_put(fmixer->card->module);
83 snd_card_file_remove(fmixer->card, file);
89 static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer,
90 mixer_info __user *_info)
92 struct snd_card *card = fmixer->card;
93 struct snd_mixer_oss *mixer = fmixer->mixer;
94 struct mixer_info info;
96 memset(&info, 0, sizeof(info));
97 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
98 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
99 info.modify_counter = card->mixer_oss_change_count;
100 if (copy_to_user(_info, &info, sizeof(info)))
105 static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer,
106 _old_mixer_info __user *_info)
108 struct snd_card *card = fmixer->card;
109 struct snd_mixer_oss *mixer = fmixer->mixer;
110 _old_mixer_info info;
112 memset(&info, 0, sizeof(info));
113 strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
114 strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
115 if (copy_to_user(_info, &info, sizeof(info)))
120 static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer)
122 struct snd_mixer_oss *mixer = fmixer->mixer;
127 if (mixer->get_recsrc && mixer->put_recsrc)
128 result |= SOUND_CAP_EXCL_INPUT;
132 static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer)
134 struct snd_mixer_oss *mixer = fmixer->mixer;
135 struct snd_mixer_oss_slot *pslot;
140 for (chn = 0; chn < 31; chn++) {
141 pslot = &mixer->slots[chn];
142 if (pslot->put_volume || pslot->put_recsrc)
148 static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer)
150 struct snd_mixer_oss *mixer = fmixer->mixer;
151 struct snd_mixer_oss_slot *pslot;
156 for (chn = 0; chn < 31; chn++) {
157 pslot = &mixer->slots[chn];
158 if (pslot->put_volume && pslot->stereo)
164 static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
166 struct snd_mixer_oss *mixer = fmixer->mixer;
171 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
172 result = mixer->mask_recsrc;
174 struct snd_mixer_oss_slot *pslot;
176 for (chn = 0; chn < 31; chn++) {
177 pslot = &mixer->slots[chn];
178 if (pslot->put_recsrc)
185 static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
187 struct snd_mixer_oss *mixer = fmixer->mixer;
192 if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */
195 if ((err = mixer->get_recsrc(fmixer, &index)) < 0)
199 struct snd_mixer_oss_slot *pslot;
201 for (chn = 0; chn < 31; chn++) {
202 pslot = &mixer->slots[chn];
203 if (pslot->get_recsrc) {
205 pslot->get_recsrc(fmixer, pslot, &active);
211 return mixer->oss_recsrc = result;
214 static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc)
216 struct snd_mixer_oss *mixer = fmixer->mixer;
217 struct snd_mixer_oss_slot *pslot;
224 if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */
225 if (recsrc & ~mixer->oss_recsrc)
226 recsrc &= ~mixer->oss_recsrc;
227 mixer->put_recsrc(fmixer, ffz(~recsrc));
228 mixer->get_recsrc(fmixer, &index);
231 for (chn = 0; chn < 31; chn++) {
232 pslot = &mixer->slots[chn];
233 if (pslot->put_recsrc) {
234 active = (recsrc & (1 << chn)) ? 1 : 0;
235 pslot->put_recsrc(fmixer, pslot, active);
239 for (chn = 0; chn < 31; chn++) {
240 pslot = &mixer->slots[chn];
241 if (pslot->get_recsrc) {
243 pslot->get_recsrc(fmixer, pslot, &active);
252 static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
254 struct snd_mixer_oss *mixer = fmixer->mixer;
255 struct snd_mixer_oss_slot *pslot;
256 int result = 0, left, right;
258 if (mixer == NULL || slot > 30)
260 pslot = &mixer->slots[slot];
261 left = pslot->volume[0];
262 right = pslot->volume[1];
263 if (pslot->get_volume)
264 result = pslot->get_volume(fmixer, pslot, &left, &right);
267 if (snd_BUG_ON(left < 0 || left > 100))
269 if (snd_BUG_ON(right < 0 || right > 100))
272 pslot->volume[0] = left;
273 pslot->volume[1] = right;
274 result = (left & 0xff) | ((right & 0xff) << 8);
279 static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
280 int slot, int volume)
282 struct snd_mixer_oss *mixer = fmixer->mixer;
283 struct snd_mixer_oss_slot *pslot;
284 int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff;
286 if (mixer == NULL || slot > 30)
288 pslot = &mixer->slots[slot];
295 if (pslot->put_volume)
296 result = pslot->put_volume(fmixer, pslot, left, right);
299 pslot->volume[0] = left;
300 pslot->volume[1] = right;
301 return (left & 0xff) | ((right & 0xff) << 8);
304 static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
306 void __user *argp = (void __user *)arg;
307 int __user *p = argp;
310 if (snd_BUG_ON(!fmixer))
312 if (((cmd >> 8) & 0xff) == 'M') {
314 case SOUND_MIXER_INFO:
315 return snd_mixer_oss_info(fmixer, argp);
316 case SOUND_OLD_MIXER_INFO:
317 return snd_mixer_oss_info_obsolete(fmixer, argp);
318 case SOUND_MIXER_WRITE_RECSRC:
319 if (get_user(tmp, p))
321 tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
324 return put_user(tmp, p);
326 return put_user(SNDRV_OSS_VERSION, p);
327 case OSS_ALSAEMULVER:
328 return put_user(1, p);
329 case SOUND_MIXER_READ_DEVMASK:
330 tmp = snd_mixer_oss_devmask(fmixer);
333 return put_user(tmp, p);
334 case SOUND_MIXER_READ_STEREODEVS:
335 tmp = snd_mixer_oss_stereodevs(fmixer);
338 return put_user(tmp, p);
339 case SOUND_MIXER_READ_RECMASK:
340 tmp = snd_mixer_oss_recmask(fmixer);
343 return put_user(tmp, p);
344 case SOUND_MIXER_READ_CAPS:
345 tmp = snd_mixer_oss_caps(fmixer);
348 return put_user(tmp, p);
349 case SOUND_MIXER_READ_RECSRC:
350 tmp = snd_mixer_oss_get_recsrc(fmixer);
353 return put_user(tmp, p);
357 if (get_user(tmp, p))
359 tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
362 return put_user(tmp, p);
363 } else if (cmd & SIOC_OUT) {
364 tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
367 return put_user(tmp, p);
372 static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
374 return snd_mixer_oss_ioctl1(file->private_data, cmd, arg);
377 int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
379 struct snd_mixer_oss_file fmixer;
381 if (snd_BUG_ON(!card))
383 if (card->mixer_oss == NULL)
385 memset(&fmixer, 0, sizeof(fmixer));
387 fmixer.mixer = card->mixer_oss;
388 return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
393 #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl
395 #define snd_mixer_oss_ioctl_compat NULL
402 static const struct file_operations snd_mixer_oss_f_ops =
404 .owner = THIS_MODULE,
405 .open = snd_mixer_oss_open,
406 .release = snd_mixer_oss_release,
408 .unlocked_ioctl = snd_mixer_oss_ioctl,
409 .compat_ioctl = snd_mixer_oss_ioctl_compat,
416 static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
418 long orange = omax - omin, nrange = nmax - nmin;
422 return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
425 /* convert from alsa native to oss values (0-100) */
426 static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
428 if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
430 return snd_mixer_oss_conv(val, min, max, 0, 100);
433 /* convert from oss to alsa native values */
434 static long snd_mixer_oss_conv2(long val, long min, long max)
436 return snd_mixer_oss_conv(val, 0, 100, min, max);
440 static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot)
442 struct snd_mixer_oss *mixer = card->mixer_oss;
444 mixer->mask_recsrc |= 1 << slot;
447 static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot)
449 struct snd_mixer_oss *mixer = card->mixer_oss;
450 if (mixer && (mixer->mask_recsrc & (1 << slot)))
456 #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250
458 #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0
459 #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1
460 #define SNDRV_MIXER_OSS_ITEM_GROUTE 2
461 #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3
462 #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4
463 #define SNDRV_MIXER_OSS_ITEM_PROUTE 5
464 #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6
465 #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7
466 #define SNDRV_MIXER_OSS_ITEM_CROUTE 8
467 #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9
468 #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10
470 #define SNDRV_MIXER_OSS_ITEM_COUNT 11
472 #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0)
473 #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1)
474 #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2)
475 #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3)
476 #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4)
477 #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5)
478 #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6)
479 #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7)
480 #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8)
481 #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9)
482 #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10)
485 unsigned int signature;
486 unsigned int present;
487 unsigned int channels;
488 unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
489 unsigned int capture_item;
490 struct snd_mixer_oss_assign_table *assigned;
491 unsigned int allocated: 1;
494 #define ID_UNKNOWN ((unsigned int)-1)
496 static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index)
498 struct snd_card *card = mixer->card;
499 struct snd_ctl_elem_id id;
501 memset(&id, 0, sizeof(id));
502 id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
503 strlcpy(id.name, name, sizeof(id.name));
505 return snd_ctl_find_id(card, &id);
508 static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer,
509 struct snd_mixer_oss_slot *pslot,
511 int *left, int *right)
513 struct snd_ctl_elem_info *uinfo;
514 struct snd_ctl_elem_value *uctl;
515 struct snd_kcontrol *kctl;
516 struct snd_card *card = fmixer->card;
518 if (numid == ID_UNKNOWN)
520 down_read(&card->controls_rwsem);
521 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
522 up_read(&card->controls_rwsem);
525 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
526 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
527 if (uinfo == NULL || uctl == NULL)
529 if (kctl->info(kctl, uinfo))
531 if (kctl->get(kctl, uctl))
533 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
534 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
536 *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
537 if (uinfo->count > 1)
538 *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
540 up_read(&card->controls_rwsem);
545 static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer,
546 struct snd_mixer_oss_slot *pslot,
548 int *left, int *right,
551 struct snd_ctl_elem_info *uinfo;
552 struct snd_ctl_elem_value *uctl;
553 struct snd_kcontrol *kctl;
554 struct snd_card *card = fmixer->card;
556 if (numid == ID_UNKNOWN)
558 down_read(&card->controls_rwsem);
559 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
560 up_read(&card->controls_rwsem);
563 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
564 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
565 if (uinfo == NULL || uctl == NULL)
567 if (kctl->info(kctl, uinfo))
569 if (kctl->get(kctl, uctl))
571 if (!uctl->value.integer.value[0]) {
573 if (uinfo->count == 1)
576 if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
579 up_read(&card->controls_rwsem);
584 static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
585 struct snd_mixer_oss_slot *pslot,
586 int *left, int *right)
588 struct slot *slot = pslot->private_data;
590 *left = *right = 100;
591 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
592 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
593 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
594 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
595 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
596 snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
598 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
599 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
600 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
601 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
602 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
603 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
604 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
605 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
610 static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
611 struct snd_mixer_oss_slot *pslot,
615 struct snd_ctl_elem_info *uinfo;
616 struct snd_ctl_elem_value *uctl;
617 struct snd_kcontrol *kctl;
618 struct snd_card *card = fmixer->card;
621 if (numid == ID_UNKNOWN)
623 down_read(&card->controls_rwsem);
624 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
625 up_read(&card->controls_rwsem);
628 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
629 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
630 if (uinfo == NULL || uctl == NULL)
632 if (kctl->info(kctl, uinfo))
634 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
635 uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
637 uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
638 if (uinfo->count > 1)
639 uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
640 if ((res = kctl->put(kctl, uctl)) < 0)
643 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
645 up_read(&card->controls_rwsem);
650 static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
651 struct snd_mixer_oss_slot *pslot,
656 struct snd_ctl_elem_info *uinfo;
657 struct snd_ctl_elem_value *uctl;
658 struct snd_kcontrol *kctl;
659 struct snd_card *card = fmixer->card;
662 if (numid == ID_UNKNOWN)
664 down_read(&card->controls_rwsem);
665 if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
666 up_read(&card->controls_rwsem);
669 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
670 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
671 if (uinfo == NULL || uctl == NULL)
673 if (kctl->info(kctl, uinfo))
675 if (uinfo->count > 1) {
676 uctl->value.integer.value[0] = left > 0 ? 1 : 0;
677 uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
679 uctl->value.integer.value[1] =
680 uctl->value.integer.value[2] = 0;
683 uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
685 if ((res = kctl->put(kctl, uctl)) < 0)
688 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
690 up_read(&card->controls_rwsem);
695 static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
696 struct snd_mixer_oss_slot *pslot,
699 struct slot *slot = pslot->private_data;
701 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
702 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
703 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
704 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
705 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) {
706 snd_mixer_oss_put_volume1_vol(fmixer, pslot,
707 slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
708 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
709 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
710 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
711 snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
714 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
715 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
716 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH)
717 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
718 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
719 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
720 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
721 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
722 if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE)
723 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
724 if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
725 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
727 if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
728 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
729 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
730 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
731 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
732 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
733 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
734 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
735 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
736 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
737 } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
738 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
744 static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
745 struct snd_mixer_oss_slot *pslot,
748 struct slot *slot = pslot->private_data;
752 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
753 *active = (left || right) ? 1 : 0;
757 static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
758 struct snd_mixer_oss_slot *pslot,
761 struct slot *slot = pslot->private_data;
765 snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
766 *active = (left || right) ? 1 : 0;
770 static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
771 struct snd_mixer_oss_slot *pslot,
774 struct slot *slot = pslot->private_data;
776 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
780 static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
781 struct snd_mixer_oss_slot *pslot,
784 struct slot *slot = pslot->private_data;
786 snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
790 static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index)
792 struct snd_card *card = fmixer->card;
793 struct snd_mixer_oss *mixer = fmixer->mixer;
794 struct snd_kcontrol *kctl;
795 struct snd_mixer_oss_slot *pslot;
797 struct snd_ctl_elem_info *uinfo;
798 struct snd_ctl_elem_value *uctl;
801 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
802 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
803 if (uinfo == NULL || uctl == NULL) {
807 down_read(&card->controls_rwsem);
808 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
813 if ((err = kctl->info(kctl, uinfo)) < 0)
815 if ((err = kctl->get(kctl, uctl)) < 0)
817 for (idx = 0; idx < 32; idx++) {
818 if (!(mixer->mask_recsrc & (1 << idx)))
820 pslot = &mixer->slots[idx];
821 slot = pslot->private_data;
822 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
824 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
826 if (slot->capture_item == uctl->value.enumerated.item[0]) {
833 up_read(&card->controls_rwsem);
840 static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index)
842 struct snd_card *card = fmixer->card;
843 struct snd_mixer_oss *mixer = fmixer->mixer;
844 struct snd_kcontrol *kctl;
845 struct snd_mixer_oss_slot *pslot;
846 struct slot *slot = NULL;
847 struct snd_ctl_elem_info *uinfo;
848 struct snd_ctl_elem_value *uctl;
852 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
853 uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
854 if (uinfo == NULL || uctl == NULL) {
858 down_read(&card->controls_rwsem);
859 kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
864 if ((err = kctl->info(kctl, uinfo)) < 0)
866 for (idx = 0; idx < 32; idx++) {
867 if (!(mixer->mask_recsrc & (1 << idx)))
869 pslot = &mixer->slots[idx];
870 slot = pslot->private_data;
871 if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
873 if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
875 if (idx == active_index)
881 for (idx = 0; idx < uinfo->count; idx++)
882 uctl->value.enumerated.item[idx] = slot->capture_item;
883 err = kctl->put(kctl, uctl);
885 snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
888 up_read(&card->controls_rwsem);
895 struct snd_mixer_oss_assign_table {
901 static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item)
903 struct snd_ctl_elem_info *info;
904 struct snd_kcontrol *kcontrol;
905 struct snd_card *card = mixer->card;
908 down_read(&card->controls_rwsem);
909 kcontrol = snd_mixer_oss_test_id(mixer, name, index);
910 if (kcontrol == NULL) {
911 up_read(&card->controls_rwsem);
914 info = kmalloc(sizeof(*info), GFP_KERNEL);
916 up_read(&card->controls_rwsem);
919 if ((err = kcontrol->info(kcontrol, info)) < 0) {
920 up_read(&card->controls_rwsem);
924 slot->numid[item] = kcontrol->id.numid;
925 up_read(&card->controls_rwsem);
926 if (info->count > slot->channels)
927 slot->channels = info->count;
928 slot->present |= 1 << item;
933 static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
935 struct slot *p = chn->private_data;
937 if (p->allocated && p->assigned) {
938 kfree(p->assigned->name);
945 static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
947 int idx = rslot->number; /* remember this */
948 if (rslot->private_free)
949 rslot->private_free(rslot);
950 memset(rslot, 0, sizeof(*rslot));
954 /* In a separate function to keep gcc 3.2 happy - do NOT merge this in
955 snd_mixer_oss_build_input! */
956 static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer,
957 struct snd_mixer_oss_assign_table *ptr,
963 err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index,
964 SNDRV_MIXER_OSS_ITEM_GLOBAL);
967 sprintf(str, "%s Switch", ptr->name);
968 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
969 SNDRV_MIXER_OSS_ITEM_GSWITCH);
972 sprintf(str, "%s Route", ptr->name);
973 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
974 SNDRV_MIXER_OSS_ITEM_GROUTE);
977 sprintf(str, "%s Volume", ptr->name);
978 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
979 SNDRV_MIXER_OSS_ITEM_GVOLUME);
982 sprintf(str, "%s Playback Switch", ptr->name);
983 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
984 SNDRV_MIXER_OSS_ITEM_PSWITCH);
987 sprintf(str, "%s Playback Route", ptr->name);
988 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
989 SNDRV_MIXER_OSS_ITEM_PROUTE);
992 sprintf(str, "%s Playback Volume", ptr->name);
993 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
994 SNDRV_MIXER_OSS_ITEM_PVOLUME);
997 sprintf(str, "%s Capture Switch", ptr->name);
998 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
999 SNDRV_MIXER_OSS_ITEM_CSWITCH);
1002 sprintf(str, "%s Capture Route", ptr->name);
1003 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
1004 SNDRV_MIXER_OSS_ITEM_CROUTE);
1007 sprintf(str, "%s Capture Volume", ptr->name);
1008 err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
1009 SNDRV_MIXER_OSS_ITEM_CVOLUME);
1017 * build an OSS mixer element.
1018 * ptr_allocated means the entry is dynamically allocated (change via proc file).
1019 * when replace_old = 1, the old entry is replaced with the new one.
1021 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)
1025 struct snd_kcontrol *kctl;
1026 struct snd_mixer_oss_slot *rslot;
1029 /* check if already assigned */
1030 if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
1033 memset(&slot, 0, sizeof(slot));
1034 memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
1035 if (snd_mixer_oss_build_test_all(mixer, ptr, &slot))
1037 down_read(&mixer->card->controls_rwsem);
1038 if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
1039 struct snd_ctl_elem_info *uinfo;
1041 uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
1043 up_read(&mixer->card->controls_rwsem);
1047 if (kctl->info(kctl, uinfo)) {
1048 up_read(&mixer->card->controls_rwsem);
1051 strcpy(str, ptr->name);
1052 if (!strcmp(str, "Master"))
1054 if (!strcmp(str, "Master Mono"))
1055 strcpy(str, "Mix Mono");
1056 slot.capture_item = 0;
1057 if (!strcmp(uinfo->value.enumerated.name, str)) {
1058 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1060 for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
1061 uinfo->value.enumerated.item = slot.capture_item;
1062 if (kctl->info(kctl, uinfo)) {
1063 up_read(&mixer->card->controls_rwsem);
1066 if (!strcmp(uinfo->value.enumerated.name, str)) {
1067 slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
1074 up_read(&mixer->card->controls_rwsem);
1075 if (slot.present != 0) {
1076 pslot = kmalloc(sizeof(slot), GFP_KERNEL);
1080 pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
1081 pslot->assigned = ptr;
1082 pslot->allocated = ptr_allocated;
1083 rslot = &mixer->slots[ptr->oss_id];
1084 mixer_slot_clear(rslot);
1085 rslot->stereo = slot.channels > 1 ? 1 : 0;
1086 rslot->get_volume = snd_mixer_oss_get_volume1;
1087 rslot->put_volume = snd_mixer_oss_put_volume1;
1088 /* note: ES18xx have both Capture Source and XX Capture Volume !!! */
1089 if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
1090 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
1091 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
1092 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
1093 rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
1094 rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
1095 } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
1096 mixer->mask_recsrc |= 1 << ptr->oss_id;
1098 rslot->private_data = pslot;
1099 rslot->private_free = snd_mixer_oss_slot_free;
1105 #ifdef CONFIG_PROC_FS
1108 #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
1109 static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
1127 MIXER_VOL(DIGITAL1),
1128 MIXER_VOL(DIGITAL2),
1129 MIXER_VOL(DIGITAL3),
1131 MIXER_VOL(PHONEOUT),
1141 static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
1142 struct snd_info_buffer *buffer)
1144 struct snd_mixer_oss *mixer = entry->private_data;
1147 mutex_lock(&mixer->reg_mutex);
1148 for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
1151 if (! oss_mixer_names[i])
1153 p = (struct slot *)mixer->slots[i].private_data;
1154 snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
1155 if (p && p->assigned)
1156 snd_iprintf(buffer, "\"%s\" %d\n",
1158 p->assigned->index);
1160 snd_iprintf(buffer, "\"\" 0\n");
1162 mutex_unlock(&mixer->reg_mutex);
1165 static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
1166 struct snd_info_buffer *buffer)
1168 struct snd_mixer_oss *mixer = entry->private_data;
1169 char line[128], str[32], idxstr[16];
1172 struct snd_mixer_oss_assign_table *tbl;
1175 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1176 cptr = snd_info_get_str(str, line, sizeof(str));
1177 for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
1178 if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
1180 if (ch >= SNDRV_OSS_MAX_MIXERS) {
1181 snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
1184 cptr = snd_info_get_str(str, cptr, sizeof(str));
1186 /* remove the entry */
1187 mutex_lock(&mixer->reg_mutex);
1188 mixer_slot_clear(&mixer->slots[ch]);
1189 mutex_unlock(&mixer->reg_mutex);
1192 snd_info_get_str(idxstr, cptr, sizeof(idxstr));
1193 idx = simple_strtoul(idxstr, NULL, 10);
1194 if (idx >= 0x4000) { /* too big */
1195 snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
1198 mutex_lock(&mixer->reg_mutex);
1199 slot = (struct slot *)mixer->slots[ch].private_data;
1200 if (slot && slot->assigned &&
1201 slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
1204 tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
1206 snd_printk(KERN_ERR "mixer_oss: no memory\n");
1210 tbl->name = kstrdup(str, GFP_KERNEL);
1216 if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
1221 mutex_unlock(&mixer->reg_mutex);
1225 static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
1227 struct snd_info_entry *entry;
1229 entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
1230 mixer->card->proc_root);
1233 entry->content = SNDRV_INFO_CONTENT_TEXT;
1234 entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
1235 entry->c.text.read = snd_mixer_oss_proc_read;
1236 entry->c.text.write = snd_mixer_oss_proc_write;
1237 entry->private_data = mixer;
1238 if (snd_info_register(entry) < 0) {
1239 snd_info_free_entry(entry);
1242 mixer->proc_entry = entry;
1245 static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
1247 snd_info_free_entry(mixer->proc_entry);
1248 mixer->proc_entry = NULL;
1250 #else /* !CONFIG_PROC_FS */
1251 #define snd_mixer_oss_proc_init(mix)
1252 #define snd_mixer_oss_proc_done(mix)
1253 #endif /* CONFIG_PROC_FS */
1255 static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
1257 static struct snd_mixer_oss_assign_table table[] = {
1258 { SOUND_MIXER_VOLUME, "Master", 0 },
1259 { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */
1260 { SOUND_MIXER_BASS, "Tone Control - Bass", 0 },
1261 { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 },
1262 { SOUND_MIXER_SYNTH, "Synth", 0 },
1263 { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */
1264 { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */
1265 { SOUND_MIXER_PCM, "PCM", 0 },
1266 { SOUND_MIXER_SPEAKER, "Beep", 0 },
1267 { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */
1268 { SOUND_MIXER_SPEAKER, "Speaker", 0 }, /* fallback */
1269 { SOUND_MIXER_LINE, "Line", 0 },
1270 { SOUND_MIXER_MIC, "Mic", 0 },
1271 { SOUND_MIXER_CD, "CD", 0 },
1272 { SOUND_MIXER_IMIX, "Monitor Mix", 0 },
1273 { SOUND_MIXER_ALTPCM, "PCM", 1 },
1274 { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */
1275 { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */
1276 { SOUND_MIXER_RECLEV, "-- nothing --", 0 },
1277 { SOUND_MIXER_IGAIN, "Capture", 0 },
1278 { SOUND_MIXER_OGAIN, "Playback", 0 },
1279 { SOUND_MIXER_LINE1, "Aux", 0 },
1280 { SOUND_MIXER_LINE2, "Aux", 1 },
1281 { SOUND_MIXER_LINE3, "Aux", 2 },
1282 { SOUND_MIXER_DIGITAL1, "Digital", 0 },
1283 { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */
1284 { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */
1285 { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */
1286 { SOUND_MIXER_DIGITAL2, "Digital", 1 },
1287 { SOUND_MIXER_DIGITAL3, "Digital", 2 },
1288 { SOUND_MIXER_PHONEIN, "Phone", 0 },
1289 { SOUND_MIXER_PHONEOUT, "Master Mono", 0 },
1290 { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/
1291 { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/
1292 { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */
1293 { SOUND_MIXER_VIDEO, "Video", 0 },
1294 { SOUND_MIXER_RADIO, "Radio", 0 },
1295 { SOUND_MIXER_MONITOR, "Monitor", 0 }
1299 for (idx = 0; idx < ARRAY_SIZE(table); idx++)
1300 snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
1301 if (mixer->mask_recsrc) {
1302 mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
1303 mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
1311 static int snd_mixer_oss_free1(void *private)
1313 struct snd_mixer_oss *mixer = private;
1314 struct snd_card *card;
1320 if (snd_BUG_ON(mixer != card->mixer_oss))
1322 card->mixer_oss = NULL;
1323 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
1324 struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
1325 if (chn->private_free)
1326 chn->private_free(chn);
1332 static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
1334 struct snd_mixer_oss *mixer;
1336 if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
1340 mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
1343 mutex_init(&mixer->reg_mutex);
1344 sprintf(name, "mixer%i%i", card->number, 0);
1345 if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
1347 &snd_mixer_oss_f_ops, card,
1349 snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n",
1354 mixer->oss_dev_alloc = 1;
1356 if (*card->mixername)
1357 strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
1359 strlcpy(mixer->name, name, sizeof(mixer->name));
1360 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1361 snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
1365 for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
1366 mixer->slots[idx].number = idx;
1367 card->mixer_oss = mixer;
1368 snd_mixer_oss_build(mixer);
1369 snd_mixer_oss_proc_init(mixer);
1371 mixer = card->mixer_oss;
1374 if (mixer->oss_dev_alloc) {
1375 #ifdef SNDRV_OSS_INFO_DEV_MIXERS
1376 snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
1378 snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
1379 mixer->oss_dev_alloc = 0;
1381 if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)
1383 snd_mixer_oss_proc_done(mixer);
1384 return snd_mixer_oss_free1(mixer);
1389 static int __init alsa_mixer_oss_init(void)
1393 snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
1394 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1396 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
1401 static void __exit alsa_mixer_oss_exit(void)
1405 snd_mixer_oss_notify_callback = NULL;
1406 for (idx = 0; idx < SNDRV_CARDS; idx++) {
1408 snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
1412 module_init(alsa_mixer_oss_init)
1413 module_exit(alsa_mixer_oss_exit)
1415 EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);