Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * OSS emulation layer for the mixer interface | |
c1017a4c | 3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
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> | |
1da177e4 LT |
24 | #include <linux/slab.h> |
25 | #include <linux/time.h> | |
543537bd | 26 | #include <linux/string.h> |
1da177e4 LT |
27 | #include <sound/core.h> |
28 | #include <sound/minors.h> | |
29 | #include <sound/control.h> | |
30 | #include <sound/info.h> | |
31 | #include <sound/mixer_oss.h> | |
32 | #include <linux/soundcard.h> | |
33 | ||
34 | #define OSS_ALSAEMULVER _SIOR ('M', 249, int) | |
35 | ||
c1017a4c | 36 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
1da177e4 LT |
37 | MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); |
38 | MODULE_LICENSE("GPL"); | |
39 | MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); | |
40 | ||
41 | static int snd_mixer_oss_open(struct inode *inode, struct file *file) | |
42 | { | |
f956b4a3 TI |
43 | struct snd_card *card; |
44 | struct snd_mixer_oss_file *fmixer; | |
1da177e4 LT |
45 | int err; |
46 | ||
f87135f5 CL |
47 | card = snd_lookup_oss_minor_data(iminor(inode), |
48 | SNDRV_OSS_DEVICE_TYPE_MIXER); | |
49 | if (card == NULL) | |
1da177e4 LT |
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; | |
ca2c0966 | 56 | fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); |
1da177e4 LT |
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 | { | |
f956b4a3 | 74 | struct snd_mixer_oss_file *fmixer; |
1da177e4 LT |
75 | |
76 | if (file->private_data) { | |
f956b4a3 | 77 | fmixer = (struct snd_mixer_oss_file *) file->private_data; |
1da177e4 LT |
78 | module_put(fmixer->card->module); |
79 | snd_card_file_remove(fmixer->card, file); | |
80 | kfree(fmixer); | |
81 | } | |
82 | return 0; | |
83 | } | |
84 | ||
f956b4a3 | 85 | static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer, |
1da177e4 LT |
86 | mixer_info __user *_info) |
87 | { | |
f956b4a3 TI |
88 | struct snd_card *card = fmixer->card; |
89 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
1da177e4 LT |
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 | ||
f956b4a3 | 101 | static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer, |
1da177e4 LT |
102 | _old_mixer_info __user *_info) |
103 | { | |
f956b4a3 TI |
104 | struct snd_card *card = fmixer->card; |
105 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
1da177e4 LT |
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 | ||
f956b4a3 | 116 | static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 117 | { |
f956b4a3 | 118 | struct snd_mixer_oss *mixer = fmixer->mixer; |
1da177e4 LT |
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 | ||
f956b4a3 | 128 | static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 129 | { |
f956b4a3 TI |
130 | struct snd_mixer_oss *mixer = fmixer->mixer; |
131 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
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 | ||
f956b4a3 | 144 | static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 145 | { |
f956b4a3 TI |
146 | struct snd_mixer_oss *mixer = fmixer->mixer; |
147 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
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 | ||
f956b4a3 | 160 | static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 161 | { |
f956b4a3 | 162 | struct snd_mixer_oss *mixer = fmixer->mixer; |
1da177e4 LT |
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 { | |
f956b4a3 | 170 | struct snd_mixer_oss_slot *pslot; |
1da177e4 LT |
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 | ||
f956b4a3 | 181 | static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 182 | { |
f956b4a3 | 183 | struct snd_mixer_oss *mixer = fmixer->mixer; |
1da177e4 LT |
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 { | |
f956b4a3 | 194 | struct snd_mixer_oss_slot *pslot; |
1da177e4 LT |
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 | ||
f956b4a3 | 209 | static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc) |
1da177e4 | 210 | { |
f956b4a3 TI |
211 | struct snd_mixer_oss *mixer = fmixer->mixer; |
212 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
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 | ||
f956b4a3 | 246 | static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot) |
1da177e4 | 247 | { |
f956b4a3 TI |
248 | struct snd_mixer_oss *mixer = fmixer->mixer; |
249 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
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 | ||
f956b4a3 | 271 | static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer, |
1da177e4 LT |
272 | int slot, int volume) |
273 | { | |
f956b4a3 TI |
274 | struct snd_mixer_oss *mixer = fmixer->mixer; |
275 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
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 | ||
f956b4a3 | 296 | static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
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 | { | |
f956b4a3 | 365 | return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg); |
1da177e4 LT |
366 | } |
367 | ||
f956b4a3 | 368 | int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg) |
1da177e4 | 369 | { |
f956b4a3 | 370 | struct snd_mixer_oss_file fmixer; |
1da177e4 LT |
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 | ||
9c2e08c5 | 392 | static const struct file_operations snd_mixer_oss_f_ops = |
1da177e4 LT |
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 | ||
1da177e4 LT |
401 | /* |
402 | * utilities | |
403 | */ | |
404 | ||
405 | static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax) | |
406 | { | |
407 | long orange = omax - omin, nrange = nmax - nmin; | |
408 | ||
409 | if (orange == 0) | |
410 | return 0; | |
411 | return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin; | |
412 | } | |
413 | ||
414 | /* convert from alsa native to oss values (0-100) */ | |
415 | static long snd_mixer_oss_conv1(long val, long min, long max, int *old) | |
416 | { | |
417 | if (val == snd_mixer_oss_conv(*old, 0, 100, min, max)) | |
418 | return *old; | |
419 | return snd_mixer_oss_conv(val, min, max, 0, 100); | |
420 | } | |
421 | ||
422 | /* convert from oss to alsa native values */ | |
423 | static long snd_mixer_oss_conv2(long val, long min, long max) | |
424 | { | |
425 | return snd_mixer_oss_conv(val, 0, 100, min, max); | |
426 | } | |
427 | ||
428 | #if 0 | |
f956b4a3 | 429 | static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot) |
1da177e4 | 430 | { |
f956b4a3 | 431 | struct snd_mixer_oss *mixer = card->mixer_oss; |
1da177e4 LT |
432 | if (mixer) |
433 | mixer->mask_recsrc |= 1 << slot; | |
434 | } | |
435 | ||
f956b4a3 | 436 | static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot) |
1da177e4 | 437 | { |
f956b4a3 | 438 | struct snd_mixer_oss *mixer = card->mixer_oss; |
1da177e4 LT |
439 | if (mixer && (mixer->mask_recsrc & (1 << slot))) |
440 | return 1; | |
441 | return 0; | |
442 | } | |
443 | #endif | |
444 | ||
445 | #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 | |
446 | ||
447 | #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 | |
448 | #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 | |
449 | #define SNDRV_MIXER_OSS_ITEM_GROUTE 2 | |
450 | #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 | |
451 | #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 | |
452 | #define SNDRV_MIXER_OSS_ITEM_PROUTE 5 | |
453 | #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 | |
454 | #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 | |
455 | #define SNDRV_MIXER_OSS_ITEM_CROUTE 8 | |
456 | #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 | |
457 | #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 | |
458 | ||
459 | #define SNDRV_MIXER_OSS_ITEM_COUNT 11 | |
460 | ||
461 | #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) | |
462 | #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) | |
463 | #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) | |
464 | #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) | |
465 | #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) | |
466 | #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) | |
467 | #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) | |
468 | #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) | |
469 | #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) | |
470 | #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) | |
471 | #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) | |
472 | ||
473 | struct slot { | |
474 | unsigned int signature; | |
475 | unsigned int present; | |
476 | unsigned int channels; | |
477 | unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; | |
478 | unsigned int capture_item; | |
479 | struct snd_mixer_oss_assign_table *assigned; | |
480 | unsigned int allocated: 1; | |
481 | }; | |
482 | ||
483 | #define ID_UNKNOWN ((unsigned int)-1) | |
484 | ||
f956b4a3 | 485 | static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) |
1da177e4 | 486 | { |
f956b4a3 TI |
487 | struct snd_card *card = mixer->card; |
488 | struct snd_ctl_elem_id id; | |
1da177e4 LT |
489 | |
490 | memset(&id, 0, sizeof(id)); | |
491 | id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; | |
492 | strcpy(id.name, name); | |
493 | id.index = index; | |
494 | return snd_ctl_find_id(card, &id); | |
495 | } | |
496 | ||
f956b4a3 TI |
497 | static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, |
498 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
499 | unsigned int numid, |
500 | int *left, int *right) | |
501 | { | |
f956b4a3 TI |
502 | struct snd_ctl_elem_info *uinfo; |
503 | struct snd_ctl_elem_value *uctl; | |
504 | struct snd_kcontrol *kctl; | |
505 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
506 | |
507 | if (numid == ID_UNKNOWN) | |
508 | return; | |
509 | down_read(&card->controls_rwsem); | |
510 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { | |
511 | up_read(&card->controls_rwsem); | |
512 | return; | |
513 | } | |
ca2c0966 TI |
514 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
515 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
516 | if (uinfo == NULL || uctl == NULL) |
517 | goto __unalloc; | |
7c22f1aa TI |
518 | if (kctl->info(kctl, uinfo)) |
519 | goto __unalloc; | |
520 | if (kctl->get(kctl, uctl)) | |
521 | goto __unalloc; | |
522 | if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && | |
523 | uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) | |
524 | goto __unalloc; | |
1da177e4 LT |
525 | *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); |
526 | if (uinfo->count > 1) | |
527 | *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); | |
528 | __unalloc: | |
529 | up_read(&card->controls_rwsem); | |
530 | kfree(uctl); | |
531 | kfree(uinfo); | |
532 | } | |
533 | ||
f956b4a3 TI |
534 | static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, |
535 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
536 | unsigned int numid, |
537 | int *left, int *right, | |
538 | int route) | |
539 | { | |
f956b4a3 TI |
540 | struct snd_ctl_elem_info *uinfo; |
541 | struct snd_ctl_elem_value *uctl; | |
542 | struct snd_kcontrol *kctl; | |
543 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
544 | |
545 | if (numid == ID_UNKNOWN) | |
546 | return; | |
547 | down_read(&card->controls_rwsem); | |
548 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { | |
549 | up_read(&card->controls_rwsem); | |
550 | return; | |
551 | } | |
ca2c0966 TI |
552 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
553 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
554 | if (uinfo == NULL || uctl == NULL) |
555 | goto __unalloc; | |
7c22f1aa TI |
556 | if (kctl->info(kctl, uinfo)) |
557 | goto __unalloc; | |
558 | if (kctl->get(kctl, uctl)) | |
559 | goto __unalloc; | |
1da177e4 LT |
560 | if (!uctl->value.integer.value[0]) { |
561 | *left = 0; | |
562 | if (uinfo->count == 1) | |
563 | *right = 0; | |
564 | } | |
565 | if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) | |
566 | *right = 0; | |
567 | __unalloc: | |
568 | up_read(&card->controls_rwsem); | |
569 | kfree(uctl); | |
570 | kfree(uinfo); | |
571 | } | |
572 | ||
f956b4a3 TI |
573 | static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, |
574 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
575 | int *left, int *right) |
576 | { | |
577 | struct slot *slot = (struct slot *)pslot->private_data; | |
578 | ||
579 | *left = *right = 100; | |
580 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { | |
581 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); | |
582 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { | |
583 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); | |
584 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { | |
585 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); | |
586 | } | |
587 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { | |
588 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); | |
589 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { | |
590 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); | |
591 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { | |
592 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); | |
593 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { | |
594 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); | |
595 | } | |
596 | return 0; | |
597 | } | |
598 | ||
f956b4a3 TI |
599 | static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, |
600 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
601 | unsigned int numid, |
602 | int left, int right) | |
603 | { | |
f956b4a3 TI |
604 | struct snd_ctl_elem_info *uinfo; |
605 | struct snd_ctl_elem_value *uctl; | |
606 | struct snd_kcontrol *kctl; | |
607 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
608 | int res; |
609 | ||
610 | if (numid == ID_UNKNOWN) | |
611 | return; | |
612 | down_read(&card->controls_rwsem); | |
613 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) | |
614 | return; | |
ca2c0966 TI |
615 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
616 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
617 | if (uinfo == NULL || uctl == NULL) |
618 | goto __unalloc; | |
7c22f1aa TI |
619 | if (kctl->info(kctl, uinfo)) |
620 | goto __unalloc; | |
621 | if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && | |
622 | uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) | |
623 | goto __unalloc; | |
1da177e4 LT |
624 | uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); |
625 | if (uinfo->count > 1) | |
626 | uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); | |
7c22f1aa TI |
627 | if ((res = kctl->put(kctl, uctl)) < 0) |
628 | goto __unalloc; | |
1da177e4 LT |
629 | if (res > 0) |
630 | snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); | |
631 | __unalloc: | |
632 | up_read(&card->controls_rwsem); | |
633 | kfree(uctl); | |
634 | kfree(uinfo); | |
635 | } | |
636 | ||
f956b4a3 TI |
637 | static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, |
638 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
639 | unsigned int numid, |
640 | int left, int right, | |
641 | int route) | |
642 | { | |
f956b4a3 TI |
643 | struct snd_ctl_elem_info *uinfo; |
644 | struct snd_ctl_elem_value *uctl; | |
645 | struct snd_kcontrol *kctl; | |
646 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
647 | int res; |
648 | ||
649 | if (numid == ID_UNKNOWN) | |
650 | return; | |
651 | down_read(&card->controls_rwsem); | |
652 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { | |
653 | up_read(&fmixer->card->controls_rwsem); | |
654 | return; | |
655 | } | |
ca2c0966 TI |
656 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
657 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
658 | if (uinfo == NULL || uctl == NULL) |
659 | goto __unalloc; | |
7c22f1aa TI |
660 | if (kctl->info(kctl, uinfo)) |
661 | goto __unalloc; | |
1da177e4 LT |
662 | if (uinfo->count > 1) { |
663 | uctl->value.integer.value[0] = left > 0 ? 1 : 0; | |
664 | uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; | |
665 | if (route) { | |
666 | uctl->value.integer.value[1] = | |
667 | uctl->value.integer.value[2] = 0; | |
668 | } | |
669 | } else { | |
670 | uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; | |
671 | } | |
7c22f1aa TI |
672 | if ((res = kctl->put(kctl, uctl)) < 0) |
673 | goto __unalloc; | |
1da177e4 LT |
674 | if (res > 0) |
675 | snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); | |
676 | __unalloc: | |
677 | up_read(&card->controls_rwsem); | |
678 | kfree(uctl); | |
679 | kfree(uinfo); | |
680 | } | |
681 | ||
f956b4a3 TI |
682 | static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, |
683 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
684 | int left, int right) |
685 | { | |
686 | struct slot *slot = (struct slot *)pslot->private_data; | |
687 | ||
688 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { | |
689 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); | |
690 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) | |
691 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); | |
692 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { | |
693 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); | |
694 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { | |
695 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); | |
696 | } | |
697 | if (left || right) { | |
698 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) | |
699 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); | |
700 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) | |
701 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); | |
702 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) | |
703 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); | |
704 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) | |
705 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); | |
706 | } else { | |
707 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { | |
708 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); | |
709 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { | |
710 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); | |
711 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { | |
712 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); | |
713 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { | |
714 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); | |
715 | } | |
716 | } | |
717 | return 0; | |
718 | } | |
719 | ||
f956b4a3 TI |
720 | static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
721 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
722 | int *active) |
723 | { | |
724 | struct slot *slot = (struct slot *)pslot->private_data; | |
725 | int left, right; | |
726 | ||
727 | left = right = 1; | |
728 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); | |
729 | *active = (left || right) ? 1 : 0; | |
730 | return 0; | |
731 | } | |
732 | ||
f956b4a3 TI |
733 | static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
734 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
735 | int *active) |
736 | { | |
737 | struct slot *slot = (struct slot *)pslot->private_data; | |
738 | int left, right; | |
739 | ||
740 | left = right = 1; | |
741 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); | |
742 | *active = (left || right) ? 1 : 0; | |
743 | return 0; | |
744 | } | |
745 | ||
f956b4a3 TI |
746 | static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
747 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
748 | int active) |
749 | { | |
750 | struct slot *slot = (struct slot *)pslot->private_data; | |
751 | ||
752 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); | |
753 | return 0; | |
754 | } | |
755 | ||
f956b4a3 TI |
756 | static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
757 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
758 | int active) |
759 | { | |
760 | struct slot *slot = (struct slot *)pslot->private_data; | |
761 | ||
762 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); | |
763 | return 0; | |
764 | } | |
765 | ||
f956b4a3 | 766 | static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) |
1da177e4 | 767 | { |
f956b4a3 TI |
768 | struct snd_card *card = fmixer->card; |
769 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
770 | struct snd_kcontrol *kctl; | |
771 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 | 772 | struct slot *slot; |
f956b4a3 TI |
773 | struct snd_ctl_elem_info *uinfo; |
774 | struct snd_ctl_elem_value *uctl; | |
1da177e4 LT |
775 | int err, idx; |
776 | ||
ca2c0966 TI |
777 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
778 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
779 | if (uinfo == NULL || uctl == NULL) { |
780 | err = -ENOMEM; | |
781 | goto __unlock; | |
782 | } | |
783 | down_read(&card->controls_rwsem); | |
784 | kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); | |
7c22f1aa TI |
785 | if (! kctl) { |
786 | err = -ENOENT; | |
787 | goto __unlock; | |
788 | } | |
789 | if ((err = kctl->info(kctl, uinfo)) < 0) | |
790 | goto __unlock; | |
791 | if ((err = kctl->get(kctl, uctl)) < 0) | |
792 | goto __unlock; | |
1da177e4 LT |
793 | for (idx = 0; idx < 32; idx++) { |
794 | if (!(mixer->mask_recsrc & (1 << idx))) | |
795 | continue; | |
796 | pslot = &mixer->slots[idx]; | |
797 | slot = (struct slot *)pslot->private_data; | |
798 | if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) | |
799 | continue; | |
800 | if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) | |
801 | continue; | |
802 | if (slot->capture_item == uctl->value.enumerated.item[0]) { | |
803 | *active_index = idx; | |
804 | break; | |
805 | } | |
806 | } | |
807 | err = 0; | |
808 | __unlock: | |
809 | up_read(&card->controls_rwsem); | |
810 | kfree(uctl); | |
811 | kfree(uinfo); | |
812 | return err; | |
813 | } | |
814 | ||
f956b4a3 | 815 | static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) |
1da177e4 | 816 | { |
f956b4a3 TI |
817 | struct snd_card *card = fmixer->card; |
818 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
819 | struct snd_kcontrol *kctl; | |
820 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 | 821 | struct slot *slot = NULL; |
f956b4a3 TI |
822 | struct snd_ctl_elem_info *uinfo; |
823 | struct snd_ctl_elem_value *uctl; | |
1da177e4 LT |
824 | int err; |
825 | unsigned int idx; | |
826 | ||
ca2c0966 TI |
827 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
828 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
829 | if (uinfo == NULL || uctl == NULL) { |
830 | err = -ENOMEM; | |
831 | goto __unlock; | |
832 | } | |
833 | down_read(&card->controls_rwsem); | |
834 | kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); | |
7c22f1aa TI |
835 | if (! kctl) { |
836 | err = -ENOENT; | |
837 | goto __unlock; | |
838 | } | |
839 | if ((err = kctl->info(kctl, uinfo)) < 0) | |
840 | goto __unlock; | |
1da177e4 LT |
841 | for (idx = 0; idx < 32; idx++) { |
842 | if (!(mixer->mask_recsrc & (1 << idx))) | |
843 | continue; | |
844 | pslot = &mixer->slots[idx]; | |
845 | slot = (struct slot *)pslot->private_data; | |
846 | if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) | |
847 | continue; | |
848 | if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) | |
849 | continue; | |
850 | if (idx == active_index) | |
851 | break; | |
852 | slot = NULL; | |
853 | } | |
7c22f1aa TI |
854 | if (! slot) |
855 | goto __unlock; | |
1da177e4 LT |
856 | for (idx = 0; idx < uinfo->count; idx++) |
857 | uctl->value.enumerated.item[idx] = slot->capture_item; | |
7c22f1aa | 858 | err = kctl->put(kctl, uctl); |
1da177e4 LT |
859 | if (err > 0) |
860 | snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); | |
861 | err = 0; | |
862 | __unlock: | |
863 | up_read(&card->controls_rwsem); | |
864 | kfree(uctl); | |
865 | kfree(uinfo); | |
866 | return err; | |
867 | } | |
868 | ||
869 | struct snd_mixer_oss_assign_table { | |
870 | int oss_id; | |
871 | const char *name; | |
872 | int index; | |
873 | }; | |
874 | ||
f956b4a3 | 875 | static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) |
1da177e4 | 876 | { |
f956b4a3 TI |
877 | struct snd_ctl_elem_info *info; |
878 | struct snd_kcontrol *kcontrol; | |
879 | struct snd_card *card = mixer->card; | |
1da177e4 LT |
880 | int err; |
881 | ||
882 | down_read(&card->controls_rwsem); | |
883 | kcontrol = snd_mixer_oss_test_id(mixer, name, index); | |
884 | if (kcontrol == NULL) { | |
885 | up_read(&card->controls_rwsem); | |
886 | return 0; | |
887 | } | |
888 | info = kmalloc(sizeof(*info), GFP_KERNEL); | |
889 | if (! info) { | |
890 | up_read(&card->controls_rwsem); | |
891 | return -ENOMEM; | |
892 | } | |
893 | if ((err = kcontrol->info(kcontrol, info)) < 0) { | |
894 | up_read(&card->controls_rwsem); | |
895 | kfree(info); | |
896 | return err; | |
897 | } | |
898 | slot->numid[item] = kcontrol->id.numid; | |
899 | up_read(&card->controls_rwsem); | |
900 | if (info->count > slot->channels) | |
901 | slot->channels = info->count; | |
902 | slot->present |= 1 << item; | |
903 | kfree(info); | |
904 | return 0; | |
905 | } | |
906 | ||
f956b4a3 | 907 | static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) |
1da177e4 LT |
908 | { |
909 | struct slot *p = (struct slot *)chn->private_data; | |
910 | if (p) { | |
911 | if (p->allocated && p->assigned) { | |
912 | kfree(p->assigned->name); | |
913 | kfree(p->assigned); | |
914 | } | |
915 | kfree(p); | |
916 | } | |
917 | } | |
918 | ||
f956b4a3 | 919 | static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) |
1da177e4 LT |
920 | { |
921 | int idx = rslot->number; /* remember this */ | |
922 | if (rslot->private_free) | |
923 | rslot->private_free(rslot); | |
924 | memset(rslot, 0, sizeof(*rslot)); | |
925 | rslot->number = idx; | |
926 | } | |
927 | ||
928 | /* | |
929 | * build an OSS mixer element. | |
930 | * ptr_allocated means the entry is dynamically allocated (change via proc file). | |
931 | * when replace_old = 1, the old entry is replaced with the new one. | |
932 | */ | |
f956b4a3 | 933 | static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mixer_oss_assign_table *ptr, int ptr_allocated, int replace_old) |
1da177e4 LT |
934 | { |
935 | struct slot slot; | |
936 | struct slot *pslot; | |
f956b4a3 TI |
937 | struct snd_kcontrol *kctl; |
938 | struct snd_mixer_oss_slot *rslot; | |
1da177e4 LT |
939 | char str[64]; |
940 | ||
941 | /* check if already assigned */ | |
942 | if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) | |
943 | return 0; | |
944 | ||
945 | memset(&slot, 0, sizeof(slot)); | |
946 | memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ | |
947 | if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index, | |
948 | SNDRV_MIXER_OSS_ITEM_GLOBAL)) | |
949 | return 0; | |
950 | sprintf(str, "%s Switch", ptr->name); | |
951 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
952 | SNDRV_MIXER_OSS_ITEM_GSWITCH)) | |
953 | return 0; | |
954 | sprintf(str, "%s Route", ptr->name); | |
955 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
956 | SNDRV_MIXER_OSS_ITEM_GROUTE)) | |
957 | return 0; | |
958 | sprintf(str, "%s Volume", ptr->name); | |
959 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
960 | SNDRV_MIXER_OSS_ITEM_GVOLUME)) | |
961 | return 0; | |
962 | sprintf(str, "%s Playback Switch", ptr->name); | |
963 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
964 | SNDRV_MIXER_OSS_ITEM_PSWITCH)) | |
965 | return 0; | |
966 | sprintf(str, "%s Playback Route", ptr->name); | |
967 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
968 | SNDRV_MIXER_OSS_ITEM_PROUTE)) | |
969 | return 0; | |
970 | sprintf(str, "%s Playback Volume", ptr->name); | |
971 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
972 | SNDRV_MIXER_OSS_ITEM_PVOLUME)) | |
973 | return 0; | |
974 | sprintf(str, "%s Capture Switch", ptr->name); | |
975 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
976 | SNDRV_MIXER_OSS_ITEM_CSWITCH)) | |
977 | return 0; | |
978 | sprintf(str, "%s Capture Route", ptr->name); | |
979 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
980 | SNDRV_MIXER_OSS_ITEM_CROUTE)) | |
981 | return 0; | |
982 | sprintf(str, "%s Capture Volume", ptr->name); | |
983 | if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index, | |
984 | SNDRV_MIXER_OSS_ITEM_CVOLUME)) | |
985 | return 0; | |
986 | down_read(&mixer->card->controls_rwsem); | |
987 | if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { | |
f956b4a3 | 988 | struct snd_ctl_elem_info *uinfo; |
1da177e4 | 989 | |
59feddb2 | 990 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
1da177e4 LT |
991 | if (! uinfo) { |
992 | up_read(&mixer->card->controls_rwsem); | |
993 | return -ENOMEM; | |
994 | } | |
995 | ||
1da177e4 LT |
996 | if (kctl->info(kctl, uinfo)) { |
997 | up_read(&mixer->card->controls_rwsem); | |
998 | return 0; | |
999 | } | |
1000 | strcpy(str, ptr->name); | |
1001 | if (!strcmp(str, "Master")) | |
1002 | strcpy(str, "Mix"); | |
1003 | if (!strcmp(str, "Master Mono")) | |
1004 | strcpy(str, "Mix Mono"); | |
1005 | slot.capture_item = 0; | |
1006 | if (!strcmp(uinfo->value.enumerated.name, str)) { | |
1007 | slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; | |
1008 | } else { | |
1009 | for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { | |
1010 | uinfo->value.enumerated.item = slot.capture_item; | |
1011 | if (kctl->info(kctl, uinfo)) { | |
1012 | up_read(&mixer->card->controls_rwsem); | |
1013 | return 0; | |
1014 | } | |
1015 | if (!strcmp(uinfo->value.enumerated.name, str)) { | |
1016 | slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; | |
1017 | break; | |
1018 | } | |
1019 | } | |
1020 | } | |
1021 | kfree(uinfo); | |
1022 | } | |
1023 | up_read(&mixer->card->controls_rwsem); | |
1024 | if (slot.present != 0) { | |
5cbded58 | 1025 | pslot = kmalloc(sizeof(slot), GFP_KERNEL); |
7c22f1aa TI |
1026 | if (! pslot) |
1027 | return -ENOMEM; | |
1da177e4 LT |
1028 | *pslot = slot; |
1029 | pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; | |
1030 | pslot->assigned = ptr; | |
1031 | pslot->allocated = ptr_allocated; | |
1032 | rslot = &mixer->slots[ptr->oss_id]; | |
1033 | mixer_slot_clear(rslot); | |
1034 | rslot->stereo = slot.channels > 1 ? 1 : 0; | |
1035 | rslot->get_volume = snd_mixer_oss_get_volume1; | |
1036 | rslot->put_volume = snd_mixer_oss_put_volume1; | |
1037 | /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ | |
1038 | if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { | |
1039 | rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; | |
1040 | rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; | |
1041 | } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { | |
1042 | rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; | |
1043 | rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; | |
1044 | } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { | |
1045 | mixer->mask_recsrc |= 1 << ptr->oss_id; | |
1046 | } | |
1047 | rslot->private_data = pslot; | |
1048 | rslot->private_free = snd_mixer_oss_slot_free; | |
1049 | return 1; | |
1050 | } | |
1051 | return 0; | |
1052 | } | |
1053 | ||
04f141a8 | 1054 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
1055 | /* |
1056 | */ | |
1057 | #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name | |
1058 | static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { | |
1059 | MIXER_VOL(VOLUME), | |
1060 | MIXER_VOL(BASS), | |
1061 | MIXER_VOL(TREBLE), | |
1062 | MIXER_VOL(SYNTH), | |
1063 | MIXER_VOL(PCM), | |
1064 | MIXER_VOL(SPEAKER), | |
1065 | MIXER_VOL(LINE), | |
1066 | MIXER_VOL(MIC), | |
1067 | MIXER_VOL(CD), | |
1068 | MIXER_VOL(IMIX), | |
1069 | MIXER_VOL(ALTPCM), | |
1070 | MIXER_VOL(RECLEV), | |
1071 | MIXER_VOL(IGAIN), | |
1072 | MIXER_VOL(OGAIN), | |
1073 | MIXER_VOL(LINE1), | |
1074 | MIXER_VOL(LINE2), | |
1075 | MIXER_VOL(LINE3), | |
1076 | MIXER_VOL(DIGITAL1), | |
1077 | MIXER_VOL(DIGITAL2), | |
1078 | MIXER_VOL(DIGITAL3), | |
1079 | MIXER_VOL(PHONEIN), | |
1080 | MIXER_VOL(PHONEOUT), | |
1081 | MIXER_VOL(VIDEO), | |
1082 | MIXER_VOL(RADIO), | |
1083 | MIXER_VOL(MONITOR), | |
1084 | }; | |
1085 | ||
1086 | /* | |
1087 | * /proc interface | |
1088 | */ | |
1089 | ||
f956b4a3 TI |
1090 | static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, |
1091 | struct snd_info_buffer *buffer) | |
1da177e4 | 1092 | { |
f956b4a3 | 1093 | struct snd_mixer_oss *mixer = entry->private_data; |
1da177e4 LT |
1094 | int i; |
1095 | ||
1a60d4c5 | 1096 | mutex_lock(&mixer->reg_mutex); |
1da177e4 LT |
1097 | for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { |
1098 | struct slot *p; | |
1099 | ||
1100 | if (! oss_mixer_names[i]) | |
1101 | continue; | |
1102 | p = (struct slot *)mixer->slots[i].private_data; | |
1103 | snd_iprintf(buffer, "%s ", oss_mixer_names[i]); | |
1104 | if (p && p->assigned) | |
1105 | snd_iprintf(buffer, "\"%s\" %d\n", | |
1106 | p->assigned->name, | |
1107 | p->assigned->index); | |
1108 | else | |
1109 | snd_iprintf(buffer, "\"\" 0\n"); | |
1110 | } | |
1a60d4c5 | 1111 | mutex_unlock(&mixer->reg_mutex); |
1da177e4 LT |
1112 | } |
1113 | ||
f956b4a3 TI |
1114 | static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, |
1115 | struct snd_info_buffer *buffer) | |
1da177e4 | 1116 | { |
f956b4a3 | 1117 | struct snd_mixer_oss *mixer = entry->private_data; |
1da177e4 LT |
1118 | char line[128], str[32], idxstr[16], *cptr; |
1119 | int ch, idx; | |
1120 | struct snd_mixer_oss_assign_table *tbl; | |
1121 | struct slot *slot; | |
1122 | ||
1123 | while (!snd_info_get_line(buffer, line, sizeof(line))) { | |
1124 | cptr = snd_info_get_str(str, line, sizeof(str)); | |
1125 | for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) | |
1126 | if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) | |
1127 | break; | |
1128 | if (ch >= SNDRV_OSS_MAX_MIXERS) { | |
1129 | snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); | |
1130 | continue; | |
1131 | } | |
1132 | cptr = snd_info_get_str(str, cptr, sizeof(str)); | |
1133 | if (! *str) { | |
1134 | /* remove the entry */ | |
1a60d4c5 | 1135 | mutex_lock(&mixer->reg_mutex); |
1da177e4 | 1136 | mixer_slot_clear(&mixer->slots[ch]); |
1a60d4c5 | 1137 | mutex_unlock(&mixer->reg_mutex); |
1da177e4 LT |
1138 | continue; |
1139 | } | |
1140 | snd_info_get_str(idxstr, cptr, sizeof(idxstr)); | |
1141 | idx = simple_strtoul(idxstr, NULL, 10); | |
1142 | if (idx >= 0x4000) { /* too big */ | |
1143 | snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); | |
1144 | continue; | |
1145 | } | |
1a60d4c5 | 1146 | mutex_lock(&mixer->reg_mutex); |
1da177e4 LT |
1147 | slot = (struct slot *)mixer->slots[ch].private_data; |
1148 | if (slot && slot->assigned && | |
1149 | slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) | |
1150 | /* not changed */ | |
1151 | goto __unlock; | |
1152 | tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); | |
1153 | if (! tbl) { | |
1154 | snd_printk(KERN_ERR "mixer_oss: no memory\n"); | |
1155 | goto __unlock; | |
1156 | } | |
1157 | tbl->oss_id = ch; | |
543537bd | 1158 | tbl->name = kstrdup(str, GFP_KERNEL); |
1da177e4 LT |
1159 | if (! tbl->name) { |
1160 | kfree(tbl); | |
1161 | goto __unlock; | |
1162 | } | |
1163 | tbl->index = idx; | |
1164 | if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { | |
1165 | kfree(tbl->name); | |
1166 | kfree(tbl); | |
1167 | } | |
1168 | __unlock: | |
1a60d4c5 | 1169 | mutex_unlock(&mixer->reg_mutex); |
1da177e4 LT |
1170 | } |
1171 | } | |
1172 | ||
f956b4a3 | 1173 | static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) |
1da177e4 | 1174 | { |
f956b4a3 | 1175 | struct snd_info_entry *entry; |
1da177e4 LT |
1176 | |
1177 | entry = snd_info_create_card_entry(mixer->card, "oss_mixer", | |
1178 | mixer->card->proc_root); | |
1179 | if (! entry) | |
1180 | return; | |
1181 | entry->content = SNDRV_INFO_CONTENT_TEXT; | |
1182 | entry->mode = S_IFREG | S_IRUGO | S_IWUSR; | |
1da177e4 | 1183 | entry->c.text.read = snd_mixer_oss_proc_read; |
1da177e4 LT |
1184 | entry->c.text.write = snd_mixer_oss_proc_write; |
1185 | entry->private_data = mixer; | |
1186 | if (snd_info_register(entry) < 0) { | |
1187 | snd_info_free_entry(entry); | |
1188 | entry = NULL; | |
1189 | } | |
1190 | mixer->proc_entry = entry; | |
1191 | } | |
1192 | ||
f956b4a3 | 1193 | static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) |
1da177e4 | 1194 | { |
746d4a02 TI |
1195 | snd_info_free_entry(mixer->proc_entry); |
1196 | mixer->proc_entry = NULL; | |
1da177e4 | 1197 | } |
04f141a8 TI |
1198 | #else /* !CONFIG_PROC_FS */ |
1199 | #define snd_mixer_oss_proc_init(mix) | |
1200 | #define snd_mixer_oss_proc_done(mix) | |
1201 | #endif /* CONFIG_PROC_FS */ | |
1da177e4 | 1202 | |
f956b4a3 | 1203 | static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) |
1da177e4 LT |
1204 | { |
1205 | static struct snd_mixer_oss_assign_table table[] = { | |
1206 | { SOUND_MIXER_VOLUME, "Master", 0 }, | |
1207 | { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ | |
1208 | { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, | |
1209 | { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, | |
1210 | { SOUND_MIXER_SYNTH, "Synth", 0 }, | |
1211 | { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ | |
1212 | { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ | |
1213 | { SOUND_MIXER_PCM, "PCM", 0 }, | |
1214 | { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, | |
1215 | { SOUND_MIXER_LINE, "Line", 0 }, | |
1216 | { SOUND_MIXER_MIC, "Mic", 0 }, | |
1217 | { SOUND_MIXER_CD, "CD", 0 }, | |
1218 | { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, | |
1219 | { SOUND_MIXER_ALTPCM, "PCM", 1 }, | |
1220 | { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ | |
1221 | { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ | |
1222 | { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, | |
1223 | { SOUND_MIXER_IGAIN, "Capture", 0 }, | |
1224 | { SOUND_MIXER_OGAIN, "Playback", 0 }, | |
1225 | { SOUND_MIXER_LINE1, "Aux", 0 }, | |
1226 | { SOUND_MIXER_LINE2, "Aux", 1 }, | |
1227 | { SOUND_MIXER_LINE3, "Aux", 2 }, | |
1228 | { SOUND_MIXER_DIGITAL1, "Digital", 0 }, | |
1229 | { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ | |
1230 | { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ | |
1231 | { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ | |
1232 | { SOUND_MIXER_DIGITAL2, "Digital", 1 }, | |
1233 | { SOUND_MIXER_DIGITAL3, "Digital", 2 }, | |
1234 | { SOUND_MIXER_PHONEIN, "Phone", 0 }, | |
1235 | { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, | |
1236 | { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ | |
1237 | { SOUND_MIXER_VIDEO, "Video", 0 }, | |
1238 | { SOUND_MIXER_RADIO, "Radio", 0 }, | |
1239 | { SOUND_MIXER_MONITOR, "Monitor", 0 } | |
1240 | }; | |
1241 | unsigned int idx; | |
1242 | ||
1243 | for (idx = 0; idx < ARRAY_SIZE(table); idx++) | |
1244 | snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); | |
1245 | if (mixer->mask_recsrc) { | |
1246 | mixer->get_recsrc = snd_mixer_oss_get_recsrc2; | |
1247 | mixer->put_recsrc = snd_mixer_oss_put_recsrc2; | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | /* | |
1252 | * | |
1253 | */ | |
1254 | ||
1255 | static int snd_mixer_oss_free1(void *private) | |
1256 | { | |
f956b4a3 TI |
1257 | struct snd_mixer_oss *mixer = private; |
1258 | struct snd_card *card; | |
1da177e4 LT |
1259 | int idx; |
1260 | ||
1261 | snd_assert(mixer != NULL, return -ENXIO); | |
1262 | card = mixer->card; | |
1263 | snd_assert(mixer == card->mixer_oss, return -ENXIO); | |
1264 | card->mixer_oss = NULL; | |
1265 | for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { | |
f956b4a3 | 1266 | struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; |
1da177e4 LT |
1267 | if (chn->private_free) |
1268 | chn->private_free(chn); | |
1269 | } | |
1270 | kfree(mixer); | |
1271 | return 0; | |
1272 | } | |
1273 | ||
f956b4a3 | 1274 | static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) |
1da177e4 | 1275 | { |
f956b4a3 | 1276 | struct snd_mixer_oss *mixer; |
1da177e4 LT |
1277 | |
1278 | if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { | |
1279 | char name[128]; | |
1280 | int idx, err; | |
1281 | ||
1282 | mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); | |
1283 | if (mixer == NULL) | |
1284 | return -ENOMEM; | |
1a60d4c5 | 1285 | mutex_init(&mixer->reg_mutex); |
1da177e4 LT |
1286 | sprintf(name, "mixer%i%i", card->number, 0); |
1287 | if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, | |
1288 | card, 0, | |
f87135f5 | 1289 | &snd_mixer_oss_f_ops, card, |
1da177e4 | 1290 | name)) < 0) { |
d3d579f8 TI |
1291 | snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", |
1292 | card->number, 0); | |
1da177e4 LT |
1293 | kfree(mixer); |
1294 | return err; | |
1295 | } | |
1296 | mixer->oss_dev_alloc = 1; | |
1297 | mixer->card = card; | |
1298 | if (*card->mixername) | |
1299 | strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); | |
1300 | else | |
1301 | strlcpy(mixer->name, name, sizeof(mixer->name)); | |
1302 | #ifdef SNDRV_OSS_INFO_DEV_MIXERS | |
1303 | snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, | |
1304 | card->number, | |
1305 | mixer->name); | |
1306 | #endif | |
1307 | for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) | |
1308 | mixer->slots[idx].number = idx; | |
1309 | card->mixer_oss = mixer; | |
1310 | snd_mixer_oss_build(mixer); | |
1311 | snd_mixer_oss_proc_init(mixer); | |
c461482c | 1312 | } else { |
1da177e4 LT |
1313 | mixer = card->mixer_oss; |
1314 | if (mixer == NULL) | |
1315 | return 0; | |
c461482c | 1316 | if (mixer->oss_dev_alloc) { |
1da177e4 | 1317 | #ifdef SNDRV_OSS_INFO_DEV_MIXERS |
c461482c | 1318 | snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); |
1da177e4 | 1319 | #endif |
1da177e4 | 1320 | snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); |
c461482c TI |
1321 | mixer->oss_dev_alloc = 0; |
1322 | } | |
1323 | if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) | |
1324 | return 0; | |
1da177e4 LT |
1325 | snd_mixer_oss_proc_done(mixer); |
1326 | return snd_mixer_oss_free1(mixer); | |
1327 | } | |
1328 | return 0; | |
1329 | } | |
1330 | ||
1331 | static int __init alsa_mixer_oss_init(void) | |
1332 | { | |
1333 | int idx; | |
1334 | ||
1335 | snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; | |
1336 | for (idx = 0; idx < SNDRV_CARDS; idx++) { | |
1337 | if (snd_cards[idx]) | |
1338 | snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); | |
1339 | } | |
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | static void __exit alsa_mixer_oss_exit(void) | |
1344 | { | |
1345 | int idx; | |
1346 | ||
1347 | snd_mixer_oss_notify_callback = NULL; | |
1348 | for (idx = 0; idx < SNDRV_CARDS; idx++) { | |
1349 | if (snd_cards[idx]) | |
1350 | snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE); | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | module_init(alsa_mixer_oss_init) | |
1355 | module_exit(alsa_mixer_oss_exit) | |
1356 | ||
1357 | EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); |