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 | ||
1da177e4 | 22 | #include <linux/init.h> |
1da177e4 LT |
23 | #include <linux/slab.h> |
24 | #include <linux/time.h> | |
543537bd | 25 | #include <linux/string.h> |
1da177e4 LT |
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> | |
32 | ||
33 | #define OSS_ALSAEMULVER _SIOR ('M', 249, int) | |
34 | ||
c1017a4c | 35 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
1da177e4 LT |
36 | MODULE_DESCRIPTION("Mixer OSS emulation for ALSA."); |
37 | MODULE_LICENSE("GPL"); | |
38 | MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER); | |
39 | ||
40 | static int snd_mixer_oss_open(struct inode *inode, struct file *file) | |
41 | { | |
f956b4a3 TI |
42 | struct snd_card *card; |
43 | struct snd_mixer_oss_file *fmixer; | |
1da177e4 LT |
44 | int err; |
45 | ||
f87135f5 CL |
46 | card = snd_lookup_oss_minor_data(iminor(inode), |
47 | SNDRV_OSS_DEVICE_TYPE_MIXER); | |
48 | if (card == NULL) | |
1da177e4 LT |
49 | return -ENODEV; |
50 | if (card->mixer_oss == NULL) | |
51 | return -ENODEV; | |
52 | err = snd_card_file_add(card, file); | |
53 | if (err < 0) | |
54 | return err; | |
ca2c0966 | 55 | fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL); |
1da177e4 LT |
56 | if (fmixer == NULL) { |
57 | snd_card_file_remove(card, file); | |
58 | return -ENOMEM; | |
59 | } | |
60 | fmixer->card = card; | |
61 | fmixer->mixer = card->mixer_oss; | |
62 | file->private_data = fmixer; | |
63 | if (!try_module_get(card->module)) { | |
64 | kfree(fmixer); | |
65 | snd_card_file_remove(card, file); | |
66 | return -EFAULT; | |
67 | } | |
68 | return 0; | |
69 | } | |
70 | ||
71 | static int snd_mixer_oss_release(struct inode *inode, struct file *file) | |
72 | { | |
f956b4a3 | 73 | struct snd_mixer_oss_file *fmixer; |
1da177e4 LT |
74 | |
75 | if (file->private_data) { | |
f956b4a3 | 76 | fmixer = (struct snd_mixer_oss_file *) file->private_data; |
1da177e4 LT |
77 | module_put(fmixer->card->module); |
78 | snd_card_file_remove(fmixer->card, file); | |
79 | kfree(fmixer); | |
80 | } | |
81 | return 0; | |
82 | } | |
83 | ||
f956b4a3 | 84 | static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer, |
1da177e4 LT |
85 | mixer_info __user *_info) |
86 | { | |
f956b4a3 TI |
87 | struct snd_card *card = fmixer->card; |
88 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
1da177e4 LT |
89 | struct mixer_info info; |
90 | ||
91 | memset(&info, 0, sizeof(info)); | |
92 | strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); | |
93 | strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); | |
94 | info.modify_counter = card->mixer_oss_change_count; | |
95 | if (copy_to_user(_info, &info, sizeof(info))) | |
96 | return -EFAULT; | |
97 | return 0; | |
98 | } | |
99 | ||
f956b4a3 | 100 | static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer, |
1da177e4 LT |
101 | _old_mixer_info __user *_info) |
102 | { | |
f956b4a3 TI |
103 | struct snd_card *card = fmixer->card; |
104 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
1da177e4 LT |
105 | _old_mixer_info info; |
106 | ||
107 | memset(&info, 0, sizeof(info)); | |
108 | strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id)); | |
109 | strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name)); | |
110 | if (copy_to_user(_info, &info, sizeof(info))) | |
111 | return -EFAULT; | |
112 | return 0; | |
113 | } | |
114 | ||
f956b4a3 | 115 | static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 116 | { |
f956b4a3 | 117 | struct snd_mixer_oss *mixer = fmixer->mixer; |
1da177e4 LT |
118 | int result = 0; |
119 | ||
120 | if (mixer == NULL) | |
121 | return -EIO; | |
122 | if (mixer->get_recsrc && mixer->put_recsrc) | |
123 | result |= SOUND_CAP_EXCL_INPUT; | |
124 | return result; | |
125 | } | |
126 | ||
f956b4a3 | 127 | static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 128 | { |
f956b4a3 TI |
129 | struct snd_mixer_oss *mixer = fmixer->mixer; |
130 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
131 | int result = 0, chn; |
132 | ||
133 | if (mixer == NULL) | |
134 | return -EIO; | |
135 | for (chn = 0; chn < 31; chn++) { | |
136 | pslot = &mixer->slots[chn]; | |
137 | if (pslot->put_volume || pslot->put_recsrc) | |
138 | result |= 1 << chn; | |
139 | } | |
140 | return result; | |
141 | } | |
142 | ||
f956b4a3 | 143 | static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 144 | { |
f956b4a3 TI |
145 | struct snd_mixer_oss *mixer = fmixer->mixer; |
146 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
147 | int result = 0, chn; |
148 | ||
149 | if (mixer == NULL) | |
150 | return -EIO; | |
151 | for (chn = 0; chn < 31; chn++) { | |
152 | pslot = &mixer->slots[chn]; | |
153 | if (pslot->put_volume && pslot->stereo) | |
154 | result |= 1 << chn; | |
155 | } | |
156 | return result; | |
157 | } | |
158 | ||
f956b4a3 | 159 | static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 160 | { |
f956b4a3 | 161 | struct snd_mixer_oss *mixer = fmixer->mixer; |
1da177e4 LT |
162 | int result = 0; |
163 | ||
164 | if (mixer == NULL) | |
165 | return -EIO; | |
166 | if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ | |
167 | result = mixer->mask_recsrc; | |
168 | } else { | |
f956b4a3 | 169 | struct snd_mixer_oss_slot *pslot; |
1da177e4 LT |
170 | int chn; |
171 | for (chn = 0; chn < 31; chn++) { | |
172 | pslot = &mixer->slots[chn]; | |
173 | if (pslot->put_recsrc) | |
174 | result |= 1 << chn; | |
175 | } | |
176 | } | |
177 | return result; | |
178 | } | |
179 | ||
f956b4a3 | 180 | static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer) |
1da177e4 | 181 | { |
f956b4a3 | 182 | struct snd_mixer_oss *mixer = fmixer->mixer; |
1da177e4 LT |
183 | int result = 0; |
184 | ||
185 | if (mixer == NULL) | |
186 | return -EIO; | |
187 | if (mixer->put_recsrc && mixer->get_recsrc) { /* exclusive */ | |
188 | int err; | |
189 | if ((err = mixer->get_recsrc(fmixer, &result)) < 0) | |
190 | return err; | |
191 | result = 1 << result; | |
192 | } else { | |
f956b4a3 | 193 | struct snd_mixer_oss_slot *pslot; |
1da177e4 LT |
194 | int chn; |
195 | for (chn = 0; chn < 31; chn++) { | |
196 | pslot = &mixer->slots[chn]; | |
197 | if (pslot->get_recsrc) { | |
198 | int active = 0; | |
199 | pslot->get_recsrc(fmixer, pslot, &active); | |
200 | if (active) | |
201 | result |= 1 << chn; | |
202 | } | |
203 | } | |
204 | } | |
205 | return mixer->oss_recsrc = result; | |
206 | } | |
207 | ||
f956b4a3 | 208 | static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc) |
1da177e4 | 209 | { |
f956b4a3 TI |
210 | struct snd_mixer_oss *mixer = fmixer->mixer; |
211 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
212 | int chn, active; |
213 | int result = 0; | |
214 | ||
215 | if (mixer == NULL) | |
216 | return -EIO; | |
217 | if (mixer->get_recsrc && mixer->put_recsrc) { /* exclusive input */ | |
218 | if (recsrc & ~mixer->oss_recsrc) | |
219 | recsrc &= ~mixer->oss_recsrc; | |
220 | mixer->put_recsrc(fmixer, ffz(~recsrc)); | |
221 | mixer->get_recsrc(fmixer, &result); | |
222 | result = 1 << result; | |
223 | } | |
224 | for (chn = 0; chn < 31; chn++) { | |
225 | pslot = &mixer->slots[chn]; | |
226 | if (pslot->put_recsrc) { | |
227 | active = (recsrc & (1 << chn)) ? 1 : 0; | |
228 | pslot->put_recsrc(fmixer, pslot, active); | |
229 | } | |
230 | } | |
231 | if (! result) { | |
232 | for (chn = 0; chn < 31; chn++) { | |
233 | pslot = &mixer->slots[chn]; | |
234 | if (pslot->get_recsrc) { | |
235 | active = 0; | |
236 | pslot->get_recsrc(fmixer, pslot, &active); | |
237 | if (active) | |
238 | result |= 1 << chn; | |
239 | } | |
240 | } | |
241 | } | |
242 | return result; | |
243 | } | |
244 | ||
f956b4a3 | 245 | static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot) |
1da177e4 | 246 | { |
f956b4a3 TI |
247 | struct snd_mixer_oss *mixer = fmixer->mixer; |
248 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
249 | int result = 0, left, right; |
250 | ||
251 | if (mixer == NULL || slot > 30) | |
252 | return -EIO; | |
253 | pslot = &mixer->slots[slot]; | |
254 | left = pslot->volume[0]; | |
255 | right = pslot->volume[1]; | |
256 | if (pslot->get_volume) | |
257 | result = pslot->get_volume(fmixer, pslot, &left, &right); | |
258 | if (!pslot->stereo) | |
259 | right = left; | |
7eaa943c TI |
260 | if (snd_BUG_ON(left < 0 || left > 100)) |
261 | return -EIO; | |
262 | if (snd_BUG_ON(right < 0 || right > 100)) | |
263 | return -EIO; | |
1da177e4 LT |
264 | if (result >= 0) { |
265 | pslot->volume[0] = left; | |
266 | pslot->volume[1] = right; | |
267 | result = (left & 0xff) | ((right & 0xff) << 8); | |
268 | } | |
269 | return result; | |
270 | } | |
271 | ||
f956b4a3 | 272 | static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer, |
1da177e4 LT |
273 | int slot, int volume) |
274 | { | |
f956b4a3 TI |
275 | struct snd_mixer_oss *mixer = fmixer->mixer; |
276 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 LT |
277 | int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff; |
278 | ||
279 | if (mixer == NULL || slot > 30) | |
280 | return -EIO; | |
281 | pslot = &mixer->slots[slot]; | |
282 | if (left > 100) | |
283 | left = 100; | |
284 | if (right > 100) | |
285 | right = 100; | |
286 | if (!pslot->stereo) | |
287 | right = left; | |
288 | if (pslot->put_volume) | |
289 | result = pslot->put_volume(fmixer, pslot, left, right); | |
290 | if (result < 0) | |
291 | return result; | |
292 | pslot->volume[0] = left; | |
293 | pslot->volume[1] = right; | |
294 | return (left & 0xff) | ((right & 0xff) << 8); | |
295 | } | |
296 | ||
f956b4a3 | 297 | static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
298 | { |
299 | void __user *argp = (void __user *)arg; | |
300 | int __user *p = argp; | |
301 | int tmp; | |
302 | ||
7eaa943c TI |
303 | if (snd_BUG_ON(!fmixer)) |
304 | return -ENXIO; | |
1da177e4 LT |
305 | if (((cmd >> 8) & 0xff) == 'M') { |
306 | switch (cmd) { | |
307 | case SOUND_MIXER_INFO: | |
308 | return snd_mixer_oss_info(fmixer, argp); | |
309 | case SOUND_OLD_MIXER_INFO: | |
310 | return snd_mixer_oss_info_obsolete(fmixer, argp); | |
311 | case SOUND_MIXER_WRITE_RECSRC: | |
312 | if (get_user(tmp, p)) | |
313 | return -EFAULT; | |
314 | tmp = snd_mixer_oss_set_recsrc(fmixer, tmp); | |
315 | if (tmp < 0) | |
316 | return tmp; | |
317 | return put_user(tmp, p); | |
318 | case OSS_GETVERSION: | |
319 | return put_user(SNDRV_OSS_VERSION, p); | |
320 | case OSS_ALSAEMULVER: | |
321 | return put_user(1, p); | |
322 | case SOUND_MIXER_READ_DEVMASK: | |
323 | tmp = snd_mixer_oss_devmask(fmixer); | |
324 | if (tmp < 0) | |
325 | return tmp; | |
326 | return put_user(tmp, p); | |
327 | case SOUND_MIXER_READ_STEREODEVS: | |
328 | tmp = snd_mixer_oss_stereodevs(fmixer); | |
329 | if (tmp < 0) | |
330 | return tmp; | |
331 | return put_user(tmp, p); | |
332 | case SOUND_MIXER_READ_RECMASK: | |
333 | tmp = snd_mixer_oss_recmask(fmixer); | |
334 | if (tmp < 0) | |
335 | return tmp; | |
336 | return put_user(tmp, p); | |
337 | case SOUND_MIXER_READ_CAPS: | |
338 | tmp = snd_mixer_oss_caps(fmixer); | |
339 | if (tmp < 0) | |
340 | return tmp; | |
341 | return put_user(tmp, p); | |
342 | case SOUND_MIXER_READ_RECSRC: | |
343 | tmp = snd_mixer_oss_get_recsrc(fmixer); | |
344 | if (tmp < 0) | |
345 | return tmp; | |
346 | return put_user(tmp, p); | |
347 | } | |
348 | } | |
349 | if (cmd & SIOC_IN) { | |
350 | if (get_user(tmp, p)) | |
351 | return -EFAULT; | |
352 | tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp); | |
353 | if (tmp < 0) | |
354 | return tmp; | |
355 | return put_user(tmp, p); | |
356 | } else if (cmd & SIOC_OUT) { | |
357 | tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff); | |
358 | if (tmp < 0) | |
359 | return tmp; | |
360 | return put_user(tmp, p); | |
361 | } | |
362 | return -ENXIO; | |
363 | } | |
364 | ||
365 | static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
366 | { | |
f956b4a3 | 367 | return snd_mixer_oss_ioctl1((struct snd_mixer_oss_file *) file->private_data, cmd, arg); |
1da177e4 LT |
368 | } |
369 | ||
f956b4a3 | 370 | int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg) |
1da177e4 | 371 | { |
f956b4a3 | 372 | struct snd_mixer_oss_file fmixer; |
1da177e4 | 373 | |
7eaa943c TI |
374 | if (snd_BUG_ON(!card)) |
375 | return -ENXIO; | |
1da177e4 LT |
376 | if (card->mixer_oss == NULL) |
377 | return -ENXIO; | |
378 | memset(&fmixer, 0, sizeof(fmixer)); | |
379 | fmixer.card = card; | |
380 | fmixer.mixer = card->mixer_oss; | |
381 | return snd_mixer_oss_ioctl1(&fmixer, cmd, arg); | |
382 | } | |
383 | ||
384 | #ifdef CONFIG_COMPAT | |
385 | /* all compatible */ | |
386 | #define snd_mixer_oss_ioctl_compat snd_mixer_oss_ioctl | |
387 | #else | |
388 | #define snd_mixer_oss_ioctl_compat NULL | |
389 | #endif | |
390 | ||
391 | /* | |
392 | * REGISTRATION PART | |
393 | */ | |
394 | ||
9c2e08c5 | 395 | static const struct file_operations snd_mixer_oss_f_ops = |
1da177e4 LT |
396 | { |
397 | .owner = THIS_MODULE, | |
398 | .open = snd_mixer_oss_open, | |
399 | .release = snd_mixer_oss_release, | |
400 | .unlocked_ioctl = snd_mixer_oss_ioctl, | |
401 | .compat_ioctl = snd_mixer_oss_ioctl_compat, | |
402 | }; | |
403 | ||
1da177e4 LT |
404 | /* |
405 | * utilities | |
406 | */ | |
407 | ||
408 | static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax) | |
409 | { | |
410 | long orange = omax - omin, nrange = nmax - nmin; | |
411 | ||
412 | if (orange == 0) | |
413 | return 0; | |
414 | return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin; | |
415 | } | |
416 | ||
417 | /* convert from alsa native to oss values (0-100) */ | |
418 | static long snd_mixer_oss_conv1(long val, long min, long max, int *old) | |
419 | { | |
420 | if (val == snd_mixer_oss_conv(*old, 0, 100, min, max)) | |
421 | return *old; | |
422 | return snd_mixer_oss_conv(val, min, max, 0, 100); | |
423 | } | |
424 | ||
425 | /* convert from oss to alsa native values */ | |
426 | static long snd_mixer_oss_conv2(long val, long min, long max) | |
427 | { | |
428 | return snd_mixer_oss_conv(val, 0, 100, min, max); | |
429 | } | |
430 | ||
431 | #if 0 | |
f956b4a3 | 432 | static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot) |
1da177e4 | 433 | { |
f956b4a3 | 434 | struct snd_mixer_oss *mixer = card->mixer_oss; |
1da177e4 LT |
435 | if (mixer) |
436 | mixer->mask_recsrc |= 1 << slot; | |
437 | } | |
438 | ||
f956b4a3 | 439 | static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot) |
1da177e4 | 440 | { |
f956b4a3 | 441 | struct snd_mixer_oss *mixer = card->mixer_oss; |
1da177e4 LT |
442 | if (mixer && (mixer->mask_recsrc & (1 << slot))) |
443 | return 1; | |
444 | return 0; | |
445 | } | |
446 | #endif | |
447 | ||
448 | #define SNDRV_MIXER_OSS_SIGNATURE 0x65999250 | |
449 | ||
450 | #define SNDRV_MIXER_OSS_ITEM_GLOBAL 0 | |
451 | #define SNDRV_MIXER_OSS_ITEM_GSWITCH 1 | |
452 | #define SNDRV_MIXER_OSS_ITEM_GROUTE 2 | |
453 | #define SNDRV_MIXER_OSS_ITEM_GVOLUME 3 | |
454 | #define SNDRV_MIXER_OSS_ITEM_PSWITCH 4 | |
455 | #define SNDRV_MIXER_OSS_ITEM_PROUTE 5 | |
456 | #define SNDRV_MIXER_OSS_ITEM_PVOLUME 6 | |
457 | #define SNDRV_MIXER_OSS_ITEM_CSWITCH 7 | |
458 | #define SNDRV_MIXER_OSS_ITEM_CROUTE 8 | |
459 | #define SNDRV_MIXER_OSS_ITEM_CVOLUME 9 | |
460 | #define SNDRV_MIXER_OSS_ITEM_CAPTURE 10 | |
461 | ||
462 | #define SNDRV_MIXER_OSS_ITEM_COUNT 11 | |
463 | ||
464 | #define SNDRV_MIXER_OSS_PRESENT_GLOBAL (1<<0) | |
465 | #define SNDRV_MIXER_OSS_PRESENT_GSWITCH (1<<1) | |
466 | #define SNDRV_MIXER_OSS_PRESENT_GROUTE (1<<2) | |
467 | #define SNDRV_MIXER_OSS_PRESENT_GVOLUME (1<<3) | |
468 | #define SNDRV_MIXER_OSS_PRESENT_PSWITCH (1<<4) | |
469 | #define SNDRV_MIXER_OSS_PRESENT_PROUTE (1<<5) | |
470 | #define SNDRV_MIXER_OSS_PRESENT_PVOLUME (1<<6) | |
471 | #define SNDRV_MIXER_OSS_PRESENT_CSWITCH (1<<7) | |
472 | #define SNDRV_MIXER_OSS_PRESENT_CROUTE (1<<8) | |
473 | #define SNDRV_MIXER_OSS_PRESENT_CVOLUME (1<<9) | |
474 | #define SNDRV_MIXER_OSS_PRESENT_CAPTURE (1<<10) | |
475 | ||
476 | struct slot { | |
477 | unsigned int signature; | |
478 | unsigned int present; | |
479 | unsigned int channels; | |
480 | unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT]; | |
481 | unsigned int capture_item; | |
482 | struct snd_mixer_oss_assign_table *assigned; | |
483 | unsigned int allocated: 1; | |
484 | }; | |
485 | ||
486 | #define ID_UNKNOWN ((unsigned int)-1) | |
487 | ||
f956b4a3 | 488 | static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index) |
1da177e4 | 489 | { |
f956b4a3 TI |
490 | struct snd_card *card = mixer->card; |
491 | struct snd_ctl_elem_id id; | |
1da177e4 LT |
492 | |
493 | memset(&id, 0, sizeof(id)); | |
494 | id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; | |
495 | strcpy(id.name, name); | |
496 | id.index = index; | |
497 | return snd_ctl_find_id(card, &id); | |
498 | } | |
499 | ||
f956b4a3 TI |
500 | static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer, |
501 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
502 | unsigned int numid, |
503 | int *left, int *right) | |
504 | { | |
f956b4a3 TI |
505 | struct snd_ctl_elem_info *uinfo; |
506 | struct snd_ctl_elem_value *uctl; | |
507 | struct snd_kcontrol *kctl; | |
508 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
509 | |
510 | if (numid == ID_UNKNOWN) | |
511 | return; | |
512 | down_read(&card->controls_rwsem); | |
513 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { | |
514 | up_read(&card->controls_rwsem); | |
515 | return; | |
516 | } | |
ca2c0966 TI |
517 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
518 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
519 | if (uinfo == NULL || uctl == NULL) |
520 | goto __unalloc; | |
7c22f1aa TI |
521 | if (kctl->info(kctl, uinfo)) |
522 | goto __unalloc; | |
523 | if (kctl->get(kctl, uctl)) | |
524 | goto __unalloc; | |
525 | if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && | |
526 | uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) | |
527 | goto __unalloc; | |
1da177e4 LT |
528 | *left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]); |
529 | if (uinfo->count > 1) | |
530 | *right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]); | |
531 | __unalloc: | |
532 | up_read(&card->controls_rwsem); | |
533 | kfree(uctl); | |
534 | kfree(uinfo); | |
535 | } | |
536 | ||
f956b4a3 TI |
537 | static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer, |
538 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
539 | unsigned int numid, |
540 | int *left, int *right, | |
541 | int route) | |
542 | { | |
f956b4a3 TI |
543 | struct snd_ctl_elem_info *uinfo; |
544 | struct snd_ctl_elem_value *uctl; | |
545 | struct snd_kcontrol *kctl; | |
546 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
547 | |
548 | if (numid == ID_UNKNOWN) | |
549 | return; | |
550 | down_read(&card->controls_rwsem); | |
551 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { | |
552 | up_read(&card->controls_rwsem); | |
553 | return; | |
554 | } | |
ca2c0966 TI |
555 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
556 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
557 | if (uinfo == NULL || uctl == NULL) |
558 | goto __unalloc; | |
7c22f1aa TI |
559 | if (kctl->info(kctl, uinfo)) |
560 | goto __unalloc; | |
561 | if (kctl->get(kctl, uctl)) | |
562 | goto __unalloc; | |
1da177e4 LT |
563 | if (!uctl->value.integer.value[0]) { |
564 | *left = 0; | |
565 | if (uinfo->count == 1) | |
566 | *right = 0; | |
567 | } | |
568 | if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1]) | |
569 | *right = 0; | |
570 | __unalloc: | |
571 | up_read(&card->controls_rwsem); | |
572 | kfree(uctl); | |
573 | kfree(uinfo); | |
574 | } | |
575 | ||
f956b4a3 TI |
576 | static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer, |
577 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
578 | int *left, int *right) |
579 | { | |
580 | struct slot *slot = (struct slot *)pslot->private_data; | |
581 | ||
582 | *left = *right = 100; | |
583 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { | |
584 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); | |
585 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { | |
586 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); | |
587 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { | |
588 | snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); | |
589 | } | |
590 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { | |
591 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); | |
592 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { | |
593 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); | |
594 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { | |
595 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); | |
596 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { | |
597 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); | |
598 | } | |
599 | return 0; | |
600 | } | |
601 | ||
f956b4a3 TI |
602 | static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer, |
603 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
604 | unsigned int numid, |
605 | int left, int right) | |
606 | { | |
f956b4a3 TI |
607 | struct snd_ctl_elem_info *uinfo; |
608 | struct snd_ctl_elem_value *uctl; | |
609 | struct snd_kcontrol *kctl; | |
610 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
611 | int res; |
612 | ||
613 | if (numid == ID_UNKNOWN) | |
614 | return; | |
615 | down_read(&card->controls_rwsem); | |
616 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) | |
617 | return; | |
ca2c0966 TI |
618 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
619 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
620 | if (uinfo == NULL || uctl == NULL) |
621 | goto __unalloc; | |
7c22f1aa TI |
622 | if (kctl->info(kctl, uinfo)) |
623 | goto __unalloc; | |
624 | if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN && | |
625 | uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1) | |
626 | goto __unalloc; | |
1da177e4 LT |
627 | uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max); |
628 | if (uinfo->count > 1) | |
629 | uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max); | |
7c22f1aa TI |
630 | if ((res = kctl->put(kctl, uctl)) < 0) |
631 | goto __unalloc; | |
1da177e4 LT |
632 | if (res > 0) |
633 | snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); | |
634 | __unalloc: | |
635 | up_read(&card->controls_rwsem); | |
636 | kfree(uctl); | |
637 | kfree(uinfo); | |
638 | } | |
639 | ||
f956b4a3 TI |
640 | static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer, |
641 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
642 | unsigned int numid, |
643 | int left, int right, | |
644 | int route) | |
645 | { | |
f956b4a3 TI |
646 | struct snd_ctl_elem_info *uinfo; |
647 | struct snd_ctl_elem_value *uctl; | |
648 | struct snd_kcontrol *kctl; | |
649 | struct snd_card *card = fmixer->card; | |
1da177e4 LT |
650 | int res; |
651 | ||
652 | if (numid == ID_UNKNOWN) | |
653 | return; | |
654 | down_read(&card->controls_rwsem); | |
655 | if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) { | |
656 | up_read(&fmixer->card->controls_rwsem); | |
657 | return; | |
658 | } | |
ca2c0966 TI |
659 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
660 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
661 | if (uinfo == NULL || uctl == NULL) |
662 | goto __unalloc; | |
7c22f1aa TI |
663 | if (kctl->info(kctl, uinfo)) |
664 | goto __unalloc; | |
1da177e4 LT |
665 | if (uinfo->count > 1) { |
666 | uctl->value.integer.value[0] = left > 0 ? 1 : 0; | |
667 | uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0; | |
668 | if (route) { | |
669 | uctl->value.integer.value[1] = | |
670 | uctl->value.integer.value[2] = 0; | |
671 | } | |
672 | } else { | |
673 | uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0; | |
674 | } | |
7c22f1aa TI |
675 | if ((res = kctl->put(kctl, uctl)) < 0) |
676 | goto __unalloc; | |
1da177e4 LT |
677 | if (res > 0) |
678 | snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); | |
679 | __unalloc: | |
680 | up_read(&card->controls_rwsem); | |
681 | kfree(uctl); | |
682 | kfree(uinfo); | |
683 | } | |
684 | ||
f956b4a3 TI |
685 | static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer, |
686 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
687 | int left, int right) |
688 | { | |
689 | struct slot *slot = (struct slot *)pslot->private_data; | |
690 | ||
691 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) { | |
692 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right); | |
693 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) | |
694 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); | |
36c7b833 VM |
695 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) { |
696 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, | |
697 | slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right); | |
1da177e4 LT |
698 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) { |
699 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right); | |
700 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) { | |
701 | snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right); | |
702 | } | |
703 | if (left || right) { | |
704 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) | |
705 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); | |
d2e8e529 DM |
706 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) |
707 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0); | |
1da177e4 LT |
708 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) |
709 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); | |
710 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) | |
711 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); | |
d2e8e529 DM |
712 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) |
713 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1); | |
1da177e4 LT |
714 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) |
715 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); | |
716 | } else { | |
717 | if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) { | |
718 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0); | |
d2e8e529 DM |
719 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { |
720 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0); | |
1da177e4 LT |
721 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) { |
722 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0); | |
723 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) { | |
724 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1); | |
d2e8e529 DM |
725 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { |
726 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1); | |
1da177e4 LT |
727 | } else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) { |
728 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1); | |
729 | } | |
730 | } | |
731 | return 0; | |
732 | } | |
733 | ||
f956b4a3 TI |
734 | static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
735 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
736 | int *active) |
737 | { | |
738 | struct slot *slot = (struct slot *)pslot->private_data; | |
739 | int left, right; | |
740 | ||
741 | left = right = 1; | |
742 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0); | |
743 | *active = (left || right) ? 1 : 0; | |
744 | return 0; | |
745 | } | |
746 | ||
f956b4a3 TI |
747 | static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
748 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
749 | int *active) |
750 | { | |
751 | struct slot *slot = (struct slot *)pslot->private_data; | |
752 | int left, right; | |
753 | ||
754 | left = right = 1; | |
755 | snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1); | |
756 | *active = (left || right) ? 1 : 0; | |
757 | return 0; | |
758 | } | |
759 | ||
f956b4a3 TI |
760 | static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer, |
761 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
762 | int active) |
763 | { | |
764 | struct slot *slot = (struct slot *)pslot->private_data; | |
765 | ||
766 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0); | |
767 | return 0; | |
768 | } | |
769 | ||
f956b4a3 TI |
770 | static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer, |
771 | struct snd_mixer_oss_slot *pslot, | |
1da177e4 LT |
772 | int active) |
773 | { | |
774 | struct slot *slot = (struct slot *)pslot->private_data; | |
775 | ||
776 | snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1); | |
777 | return 0; | |
778 | } | |
779 | ||
f956b4a3 | 780 | static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index) |
1da177e4 | 781 | { |
f956b4a3 TI |
782 | struct snd_card *card = fmixer->card; |
783 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
784 | struct snd_kcontrol *kctl; | |
785 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 | 786 | struct slot *slot; |
f956b4a3 TI |
787 | struct snd_ctl_elem_info *uinfo; |
788 | struct snd_ctl_elem_value *uctl; | |
1da177e4 LT |
789 | int err, idx; |
790 | ||
ca2c0966 TI |
791 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
792 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
793 | if (uinfo == NULL || uctl == NULL) { |
794 | err = -ENOMEM; | |
795 | goto __unlock; | |
796 | } | |
797 | down_read(&card->controls_rwsem); | |
798 | kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); | |
7c22f1aa TI |
799 | if (! kctl) { |
800 | err = -ENOENT; | |
801 | goto __unlock; | |
802 | } | |
803 | if ((err = kctl->info(kctl, uinfo)) < 0) | |
804 | goto __unlock; | |
805 | if ((err = kctl->get(kctl, uctl)) < 0) | |
806 | goto __unlock; | |
1da177e4 LT |
807 | for (idx = 0; idx < 32; idx++) { |
808 | if (!(mixer->mask_recsrc & (1 << idx))) | |
809 | continue; | |
810 | pslot = &mixer->slots[idx]; | |
811 | slot = (struct slot *)pslot->private_data; | |
812 | if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) | |
813 | continue; | |
814 | if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) | |
815 | continue; | |
816 | if (slot->capture_item == uctl->value.enumerated.item[0]) { | |
817 | *active_index = idx; | |
818 | break; | |
819 | } | |
820 | } | |
821 | err = 0; | |
822 | __unlock: | |
823 | up_read(&card->controls_rwsem); | |
824 | kfree(uctl); | |
825 | kfree(uinfo); | |
826 | return err; | |
827 | } | |
828 | ||
f956b4a3 | 829 | static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index) |
1da177e4 | 830 | { |
f956b4a3 TI |
831 | struct snd_card *card = fmixer->card; |
832 | struct snd_mixer_oss *mixer = fmixer->mixer; | |
833 | struct snd_kcontrol *kctl; | |
834 | struct snd_mixer_oss_slot *pslot; | |
1da177e4 | 835 | struct slot *slot = NULL; |
f956b4a3 TI |
836 | struct snd_ctl_elem_info *uinfo; |
837 | struct snd_ctl_elem_value *uctl; | |
1da177e4 LT |
838 | int err; |
839 | unsigned int idx; | |
840 | ||
ca2c0966 TI |
841 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
842 | uctl = kzalloc(sizeof(*uctl), GFP_KERNEL); | |
1da177e4 LT |
843 | if (uinfo == NULL || uctl == NULL) { |
844 | err = -ENOMEM; | |
845 | goto __unlock; | |
846 | } | |
847 | down_read(&card->controls_rwsem); | |
848 | kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0); | |
7c22f1aa TI |
849 | if (! kctl) { |
850 | err = -ENOENT; | |
851 | goto __unlock; | |
852 | } | |
853 | if ((err = kctl->info(kctl, uinfo)) < 0) | |
854 | goto __unlock; | |
1da177e4 LT |
855 | for (idx = 0; idx < 32; idx++) { |
856 | if (!(mixer->mask_recsrc & (1 << idx))) | |
857 | continue; | |
858 | pslot = &mixer->slots[idx]; | |
859 | slot = (struct slot *)pslot->private_data; | |
860 | if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE) | |
861 | continue; | |
862 | if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE)) | |
863 | continue; | |
864 | if (idx == active_index) | |
865 | break; | |
866 | slot = NULL; | |
867 | } | |
7c22f1aa TI |
868 | if (! slot) |
869 | goto __unlock; | |
1da177e4 LT |
870 | for (idx = 0; idx < uinfo->count; idx++) |
871 | uctl->value.enumerated.item[idx] = slot->capture_item; | |
7c22f1aa | 872 | err = kctl->put(kctl, uctl); |
1da177e4 LT |
873 | if (err > 0) |
874 | snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); | |
875 | err = 0; | |
876 | __unlock: | |
877 | up_read(&card->controls_rwsem); | |
878 | kfree(uctl); | |
879 | kfree(uinfo); | |
880 | return err; | |
881 | } | |
882 | ||
883 | struct snd_mixer_oss_assign_table { | |
884 | int oss_id; | |
885 | const char *name; | |
886 | int index; | |
887 | }; | |
888 | ||
f956b4a3 | 889 | static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item) |
1da177e4 | 890 | { |
f956b4a3 TI |
891 | struct snd_ctl_elem_info *info; |
892 | struct snd_kcontrol *kcontrol; | |
893 | struct snd_card *card = mixer->card; | |
1da177e4 LT |
894 | int err; |
895 | ||
896 | down_read(&card->controls_rwsem); | |
897 | kcontrol = snd_mixer_oss_test_id(mixer, name, index); | |
898 | if (kcontrol == NULL) { | |
899 | up_read(&card->controls_rwsem); | |
900 | return 0; | |
901 | } | |
902 | info = kmalloc(sizeof(*info), GFP_KERNEL); | |
903 | if (! info) { | |
904 | up_read(&card->controls_rwsem); | |
905 | return -ENOMEM; | |
906 | } | |
907 | if ((err = kcontrol->info(kcontrol, info)) < 0) { | |
908 | up_read(&card->controls_rwsem); | |
909 | kfree(info); | |
910 | return err; | |
911 | } | |
912 | slot->numid[item] = kcontrol->id.numid; | |
913 | up_read(&card->controls_rwsem); | |
914 | if (info->count > slot->channels) | |
915 | slot->channels = info->count; | |
916 | slot->present |= 1 << item; | |
917 | kfree(info); | |
918 | return 0; | |
919 | } | |
920 | ||
f956b4a3 | 921 | static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn) |
1da177e4 LT |
922 | { |
923 | struct slot *p = (struct slot *)chn->private_data; | |
924 | if (p) { | |
925 | if (p->allocated && p->assigned) { | |
926 | kfree(p->assigned->name); | |
927 | kfree(p->assigned); | |
928 | } | |
929 | kfree(p); | |
930 | } | |
931 | } | |
932 | ||
f956b4a3 | 933 | static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot) |
1da177e4 LT |
934 | { |
935 | int idx = rslot->number; /* remember this */ | |
936 | if (rslot->private_free) | |
937 | rslot->private_free(rslot); | |
938 | memset(rslot, 0, sizeof(*rslot)); | |
939 | rslot->number = idx; | |
940 | } | |
941 | ||
22a860a9 JD |
942 | /* In a separate function to keep gcc 3.2 happy - do NOT merge this in |
943 | snd_mixer_oss_build_input! */ | |
944 | static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer, | |
945 | struct snd_mixer_oss_assign_table *ptr, | |
946 | struct slot *slot) | |
947 | { | |
948 | char str[64]; | |
949 | int err; | |
950 | ||
951 | err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index, | |
952 | SNDRV_MIXER_OSS_ITEM_GLOBAL); | |
953 | if (err) | |
954 | return err; | |
955 | sprintf(str, "%s Switch", ptr->name); | |
956 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
957 | SNDRV_MIXER_OSS_ITEM_GSWITCH); | |
958 | if (err) | |
959 | return err; | |
960 | sprintf(str, "%s Route", ptr->name); | |
961 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
962 | SNDRV_MIXER_OSS_ITEM_GROUTE); | |
963 | if (err) | |
964 | return err; | |
965 | sprintf(str, "%s Volume", ptr->name); | |
966 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
967 | SNDRV_MIXER_OSS_ITEM_GVOLUME); | |
968 | if (err) | |
969 | return err; | |
970 | sprintf(str, "%s Playback Switch", ptr->name); | |
971 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
972 | SNDRV_MIXER_OSS_ITEM_PSWITCH); | |
973 | if (err) | |
974 | return err; | |
975 | sprintf(str, "%s Playback Route", ptr->name); | |
976 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
977 | SNDRV_MIXER_OSS_ITEM_PROUTE); | |
978 | if (err) | |
979 | return err; | |
980 | sprintf(str, "%s Playback Volume", ptr->name); | |
981 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
982 | SNDRV_MIXER_OSS_ITEM_PVOLUME); | |
983 | if (err) | |
984 | return err; | |
985 | sprintf(str, "%s Capture Switch", ptr->name); | |
986 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
987 | SNDRV_MIXER_OSS_ITEM_CSWITCH); | |
988 | if (err) | |
989 | return err; | |
990 | sprintf(str, "%s Capture Route", ptr->name); | |
991 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
992 | SNDRV_MIXER_OSS_ITEM_CROUTE); | |
993 | if (err) | |
994 | return err; | |
995 | sprintf(str, "%s Capture Volume", ptr->name); | |
996 | err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index, | |
997 | SNDRV_MIXER_OSS_ITEM_CVOLUME); | |
998 | if (err) | |
999 | return err; | |
1000 | ||
1001 | return 0; | |
1002 | } | |
1003 | ||
1da177e4 LT |
1004 | /* |
1005 | * build an OSS mixer element. | |
1006 | * ptr_allocated means the entry is dynamically allocated (change via proc file). | |
1007 | * when replace_old = 1, the old entry is replaced with the new one. | |
1008 | */ | |
f956b4a3 | 1009 | 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 |
1010 | { |
1011 | struct slot slot; | |
1012 | struct slot *pslot; | |
f956b4a3 TI |
1013 | struct snd_kcontrol *kctl; |
1014 | struct snd_mixer_oss_slot *rslot; | |
1da177e4 LT |
1015 | char str[64]; |
1016 | ||
1017 | /* check if already assigned */ | |
1018 | if (mixer->slots[ptr->oss_id].get_volume && ! replace_old) | |
1019 | return 0; | |
1020 | ||
1021 | memset(&slot, 0, sizeof(slot)); | |
1022 | memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */ | |
22a860a9 | 1023 | if (snd_mixer_oss_build_test_all(mixer, ptr, &slot)) |
1da177e4 LT |
1024 | return 0; |
1025 | down_read(&mixer->card->controls_rwsem); | |
1026 | if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) { | |
f956b4a3 | 1027 | struct snd_ctl_elem_info *uinfo; |
1da177e4 | 1028 | |
59feddb2 | 1029 | uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL); |
1da177e4 LT |
1030 | if (! uinfo) { |
1031 | up_read(&mixer->card->controls_rwsem); | |
1032 | return -ENOMEM; | |
1033 | } | |
1034 | ||
1da177e4 LT |
1035 | if (kctl->info(kctl, uinfo)) { |
1036 | up_read(&mixer->card->controls_rwsem); | |
1037 | return 0; | |
1038 | } | |
1039 | strcpy(str, ptr->name); | |
1040 | if (!strcmp(str, "Master")) | |
1041 | strcpy(str, "Mix"); | |
1042 | if (!strcmp(str, "Master Mono")) | |
1043 | strcpy(str, "Mix Mono"); | |
1044 | slot.capture_item = 0; | |
1045 | if (!strcmp(uinfo->value.enumerated.name, str)) { | |
1046 | slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; | |
1047 | } else { | |
1048 | for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) { | |
1049 | uinfo->value.enumerated.item = slot.capture_item; | |
1050 | if (kctl->info(kctl, uinfo)) { | |
1051 | up_read(&mixer->card->controls_rwsem); | |
1052 | return 0; | |
1053 | } | |
1054 | if (!strcmp(uinfo->value.enumerated.name, str)) { | |
1055 | slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE; | |
1056 | break; | |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | kfree(uinfo); | |
1061 | } | |
1062 | up_read(&mixer->card->controls_rwsem); | |
1063 | if (slot.present != 0) { | |
5cbded58 | 1064 | pslot = kmalloc(sizeof(slot), GFP_KERNEL); |
7c22f1aa TI |
1065 | if (! pslot) |
1066 | return -ENOMEM; | |
1da177e4 LT |
1067 | *pslot = slot; |
1068 | pslot->signature = SNDRV_MIXER_OSS_SIGNATURE; | |
1069 | pslot->assigned = ptr; | |
1070 | pslot->allocated = ptr_allocated; | |
1071 | rslot = &mixer->slots[ptr->oss_id]; | |
1072 | mixer_slot_clear(rslot); | |
1073 | rslot->stereo = slot.channels > 1 ? 1 : 0; | |
1074 | rslot->get_volume = snd_mixer_oss_get_volume1; | |
1075 | rslot->put_volume = snd_mixer_oss_put_volume1; | |
1076 | /* note: ES18xx have both Capture Source and XX Capture Volume !!! */ | |
1077 | if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) { | |
1078 | rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw; | |
1079 | rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw; | |
1080 | } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) { | |
1081 | rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route; | |
1082 | rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route; | |
1083 | } else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) { | |
1084 | mixer->mask_recsrc |= 1 << ptr->oss_id; | |
1085 | } | |
1086 | rslot->private_data = pslot; | |
1087 | rslot->private_free = snd_mixer_oss_slot_free; | |
1088 | return 1; | |
1089 | } | |
1090 | return 0; | |
1091 | } | |
1092 | ||
04f141a8 | 1093 | #ifdef CONFIG_PROC_FS |
1da177e4 LT |
1094 | /* |
1095 | */ | |
1096 | #define MIXER_VOL(name) [SOUND_MIXER_##name] = #name | |
1097 | static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = { | |
1098 | MIXER_VOL(VOLUME), | |
1099 | MIXER_VOL(BASS), | |
1100 | MIXER_VOL(TREBLE), | |
1101 | MIXER_VOL(SYNTH), | |
1102 | MIXER_VOL(PCM), | |
1103 | MIXER_VOL(SPEAKER), | |
1104 | MIXER_VOL(LINE), | |
1105 | MIXER_VOL(MIC), | |
1106 | MIXER_VOL(CD), | |
1107 | MIXER_VOL(IMIX), | |
1108 | MIXER_VOL(ALTPCM), | |
1109 | MIXER_VOL(RECLEV), | |
1110 | MIXER_VOL(IGAIN), | |
1111 | MIXER_VOL(OGAIN), | |
1112 | MIXER_VOL(LINE1), | |
1113 | MIXER_VOL(LINE2), | |
1114 | MIXER_VOL(LINE3), | |
1115 | MIXER_VOL(DIGITAL1), | |
1116 | MIXER_VOL(DIGITAL2), | |
1117 | MIXER_VOL(DIGITAL3), | |
1118 | MIXER_VOL(PHONEIN), | |
1119 | MIXER_VOL(PHONEOUT), | |
1120 | MIXER_VOL(VIDEO), | |
1121 | MIXER_VOL(RADIO), | |
1122 | MIXER_VOL(MONITOR), | |
1123 | }; | |
1124 | ||
1125 | /* | |
1126 | * /proc interface | |
1127 | */ | |
1128 | ||
f956b4a3 TI |
1129 | static void snd_mixer_oss_proc_read(struct snd_info_entry *entry, |
1130 | struct snd_info_buffer *buffer) | |
1da177e4 | 1131 | { |
f956b4a3 | 1132 | struct snd_mixer_oss *mixer = entry->private_data; |
1da177e4 LT |
1133 | int i; |
1134 | ||
1a60d4c5 | 1135 | mutex_lock(&mixer->reg_mutex); |
1da177e4 LT |
1136 | for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) { |
1137 | struct slot *p; | |
1138 | ||
1139 | if (! oss_mixer_names[i]) | |
1140 | continue; | |
1141 | p = (struct slot *)mixer->slots[i].private_data; | |
1142 | snd_iprintf(buffer, "%s ", oss_mixer_names[i]); | |
1143 | if (p && p->assigned) | |
1144 | snd_iprintf(buffer, "\"%s\" %d\n", | |
1145 | p->assigned->name, | |
1146 | p->assigned->index); | |
1147 | else | |
1148 | snd_iprintf(buffer, "\"\" 0\n"); | |
1149 | } | |
1a60d4c5 | 1150 | mutex_unlock(&mixer->reg_mutex); |
1da177e4 LT |
1151 | } |
1152 | ||
f956b4a3 TI |
1153 | static void snd_mixer_oss_proc_write(struct snd_info_entry *entry, |
1154 | struct snd_info_buffer *buffer) | |
1da177e4 | 1155 | { |
f956b4a3 | 1156 | struct snd_mixer_oss *mixer = entry->private_data; |
4f7454a9 TI |
1157 | char line[128], str[32], idxstr[16]; |
1158 | const char *cptr; | |
1da177e4 LT |
1159 | int ch, idx; |
1160 | struct snd_mixer_oss_assign_table *tbl; | |
1161 | struct slot *slot; | |
1162 | ||
1163 | while (!snd_info_get_line(buffer, line, sizeof(line))) { | |
1164 | cptr = snd_info_get_str(str, line, sizeof(str)); | |
1165 | for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++) | |
1166 | if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0) | |
1167 | break; | |
1168 | if (ch >= SNDRV_OSS_MAX_MIXERS) { | |
1169 | snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str); | |
1170 | continue; | |
1171 | } | |
1172 | cptr = snd_info_get_str(str, cptr, sizeof(str)); | |
1173 | if (! *str) { | |
1174 | /* remove the entry */ | |
1a60d4c5 | 1175 | mutex_lock(&mixer->reg_mutex); |
1da177e4 | 1176 | mixer_slot_clear(&mixer->slots[ch]); |
1a60d4c5 | 1177 | mutex_unlock(&mixer->reg_mutex); |
1da177e4 LT |
1178 | continue; |
1179 | } | |
1180 | snd_info_get_str(idxstr, cptr, sizeof(idxstr)); | |
1181 | idx = simple_strtoul(idxstr, NULL, 10); | |
1182 | if (idx >= 0x4000) { /* too big */ | |
1183 | snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx); | |
1184 | continue; | |
1185 | } | |
1a60d4c5 | 1186 | mutex_lock(&mixer->reg_mutex); |
1da177e4 LT |
1187 | slot = (struct slot *)mixer->slots[ch].private_data; |
1188 | if (slot && slot->assigned && | |
1189 | slot->assigned->index == idx && ! strcmp(slot->assigned->name, str)) | |
1190 | /* not changed */ | |
1191 | goto __unlock; | |
1192 | tbl = kmalloc(sizeof(*tbl), GFP_KERNEL); | |
1193 | if (! tbl) { | |
1194 | snd_printk(KERN_ERR "mixer_oss: no memory\n"); | |
1195 | goto __unlock; | |
1196 | } | |
1197 | tbl->oss_id = ch; | |
543537bd | 1198 | tbl->name = kstrdup(str, GFP_KERNEL); |
1da177e4 LT |
1199 | if (! tbl->name) { |
1200 | kfree(tbl); | |
1201 | goto __unlock; | |
1202 | } | |
1203 | tbl->index = idx; | |
1204 | if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) { | |
1205 | kfree(tbl->name); | |
1206 | kfree(tbl); | |
1207 | } | |
1208 | __unlock: | |
1a60d4c5 | 1209 | mutex_unlock(&mixer->reg_mutex); |
1da177e4 LT |
1210 | } |
1211 | } | |
1212 | ||
f956b4a3 | 1213 | static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer) |
1da177e4 | 1214 | { |
f956b4a3 | 1215 | struct snd_info_entry *entry; |
1da177e4 LT |
1216 | |
1217 | entry = snd_info_create_card_entry(mixer->card, "oss_mixer", | |
1218 | mixer->card->proc_root); | |
1219 | if (! entry) | |
1220 | return; | |
1221 | entry->content = SNDRV_INFO_CONTENT_TEXT; | |
1222 | entry->mode = S_IFREG | S_IRUGO | S_IWUSR; | |
1da177e4 | 1223 | entry->c.text.read = snd_mixer_oss_proc_read; |
1da177e4 LT |
1224 | entry->c.text.write = snd_mixer_oss_proc_write; |
1225 | entry->private_data = mixer; | |
1226 | if (snd_info_register(entry) < 0) { | |
1227 | snd_info_free_entry(entry); | |
1228 | entry = NULL; | |
1229 | } | |
1230 | mixer->proc_entry = entry; | |
1231 | } | |
1232 | ||
f956b4a3 | 1233 | static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer) |
1da177e4 | 1234 | { |
746d4a02 TI |
1235 | snd_info_free_entry(mixer->proc_entry); |
1236 | mixer->proc_entry = NULL; | |
1da177e4 | 1237 | } |
04f141a8 TI |
1238 | #else /* !CONFIG_PROC_FS */ |
1239 | #define snd_mixer_oss_proc_init(mix) | |
1240 | #define snd_mixer_oss_proc_done(mix) | |
1241 | #endif /* CONFIG_PROC_FS */ | |
1da177e4 | 1242 | |
f956b4a3 | 1243 | static void snd_mixer_oss_build(struct snd_mixer_oss *mixer) |
1da177e4 LT |
1244 | { |
1245 | static struct snd_mixer_oss_assign_table table[] = { | |
1246 | { SOUND_MIXER_VOLUME, "Master", 0 }, | |
1247 | { SOUND_MIXER_VOLUME, "Front", 0 }, /* fallback */ | |
1248 | { SOUND_MIXER_BASS, "Tone Control - Bass", 0 }, | |
1249 | { SOUND_MIXER_TREBLE, "Tone Control - Treble", 0 }, | |
1250 | { SOUND_MIXER_SYNTH, "Synth", 0 }, | |
1251 | { SOUND_MIXER_SYNTH, "FM", 0 }, /* fallback */ | |
1252 | { SOUND_MIXER_SYNTH, "Music", 0 }, /* fallback */ | |
1253 | { SOUND_MIXER_PCM, "PCM", 0 }, | |
d355c82a JK |
1254 | { SOUND_MIXER_SPEAKER, "Beep", 0 }, |
1255 | { SOUND_MIXER_SPEAKER, "PC Speaker", 0 }, /* fallback */ | |
1da177e4 LT |
1256 | { SOUND_MIXER_LINE, "Line", 0 }, |
1257 | { SOUND_MIXER_MIC, "Mic", 0 }, | |
1258 | { SOUND_MIXER_CD, "CD", 0 }, | |
1259 | { SOUND_MIXER_IMIX, "Monitor Mix", 0 }, | |
1260 | { SOUND_MIXER_ALTPCM, "PCM", 1 }, | |
1261 | { SOUND_MIXER_ALTPCM, "Headphone", 0 }, /* fallback */ | |
1262 | { SOUND_MIXER_ALTPCM, "Wave", 0 }, /* fallback */ | |
1263 | { SOUND_MIXER_RECLEV, "-- nothing --", 0 }, | |
1264 | { SOUND_MIXER_IGAIN, "Capture", 0 }, | |
1265 | { SOUND_MIXER_OGAIN, "Playback", 0 }, | |
1266 | { SOUND_MIXER_LINE1, "Aux", 0 }, | |
1267 | { SOUND_MIXER_LINE2, "Aux", 1 }, | |
1268 | { SOUND_MIXER_LINE3, "Aux", 2 }, | |
1269 | { SOUND_MIXER_DIGITAL1, "Digital", 0 }, | |
1270 | { SOUND_MIXER_DIGITAL1, "IEC958", 0 }, /* fallback */ | |
1271 | { SOUND_MIXER_DIGITAL1, "IEC958 Optical", 0 }, /* fallback */ | |
1272 | { SOUND_MIXER_DIGITAL1, "IEC958 Coaxial", 0 }, /* fallback */ | |
1273 | { SOUND_MIXER_DIGITAL2, "Digital", 1 }, | |
1274 | { SOUND_MIXER_DIGITAL3, "Digital", 2 }, | |
1275 | { SOUND_MIXER_PHONEIN, "Phone", 0 }, | |
1276 | { SOUND_MIXER_PHONEOUT, "Master Mono", 0 }, | |
6c4cc3a8 TI |
1277 | { SOUND_MIXER_PHONEOUT, "Speaker", 0 }, /*fallback*/ |
1278 | { SOUND_MIXER_PHONEOUT, "Mono", 0 }, /*fallback*/ | |
1da177e4 LT |
1279 | { SOUND_MIXER_PHONEOUT, "Phone", 0 }, /* fallback */ |
1280 | { SOUND_MIXER_VIDEO, "Video", 0 }, | |
1281 | { SOUND_MIXER_RADIO, "Radio", 0 }, | |
1282 | { SOUND_MIXER_MONITOR, "Monitor", 0 } | |
1283 | }; | |
1284 | unsigned int idx; | |
1285 | ||
1286 | for (idx = 0; idx < ARRAY_SIZE(table); idx++) | |
1287 | snd_mixer_oss_build_input(mixer, &table[idx], 0, 0); | |
1288 | if (mixer->mask_recsrc) { | |
1289 | mixer->get_recsrc = snd_mixer_oss_get_recsrc2; | |
1290 | mixer->put_recsrc = snd_mixer_oss_put_recsrc2; | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | /* | |
1295 | * | |
1296 | */ | |
1297 | ||
1298 | static int snd_mixer_oss_free1(void *private) | |
1299 | { | |
f956b4a3 TI |
1300 | struct snd_mixer_oss *mixer = private; |
1301 | struct snd_card *card; | |
1da177e4 LT |
1302 | int idx; |
1303 | ||
7eaa943c TI |
1304 | if (!mixer) |
1305 | return 0; | |
1da177e4 | 1306 | card = mixer->card; |
7eaa943c TI |
1307 | if (snd_BUG_ON(mixer != card->mixer_oss)) |
1308 | return -ENXIO; | |
1da177e4 LT |
1309 | card->mixer_oss = NULL; |
1310 | for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) { | |
f956b4a3 | 1311 | struct snd_mixer_oss_slot *chn = &mixer->slots[idx]; |
1da177e4 LT |
1312 | if (chn->private_free) |
1313 | chn->private_free(chn); | |
1314 | } | |
1315 | kfree(mixer); | |
1316 | return 0; | |
1317 | } | |
1318 | ||
f956b4a3 | 1319 | static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) |
1da177e4 | 1320 | { |
f956b4a3 | 1321 | struct snd_mixer_oss *mixer; |
1da177e4 LT |
1322 | |
1323 | if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) { | |
1324 | char name[128]; | |
1325 | int idx, err; | |
1326 | ||
1327 | mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL); | |
1328 | if (mixer == NULL) | |
1329 | return -ENOMEM; | |
1a60d4c5 | 1330 | mutex_init(&mixer->reg_mutex); |
1da177e4 LT |
1331 | sprintf(name, "mixer%i%i", card->number, 0); |
1332 | if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, | |
1333 | card, 0, | |
f87135f5 | 1334 | &snd_mixer_oss_f_ops, card, |
1da177e4 | 1335 | name)) < 0) { |
d3d579f8 TI |
1336 | snd_printk(KERN_ERR "unable to register OSS mixer device %i:%i\n", |
1337 | card->number, 0); | |
1da177e4 LT |
1338 | kfree(mixer); |
1339 | return err; | |
1340 | } | |
1341 | mixer->oss_dev_alloc = 1; | |
1342 | mixer->card = card; | |
1343 | if (*card->mixername) | |
1344 | strlcpy(mixer->name, card->mixername, sizeof(mixer->name)); | |
1345 | else | |
1346 | strlcpy(mixer->name, name, sizeof(mixer->name)); | |
1347 | #ifdef SNDRV_OSS_INFO_DEV_MIXERS | |
1348 | snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS, | |
1349 | card->number, | |
1350 | mixer->name); | |
1351 | #endif | |
1352 | for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) | |
1353 | mixer->slots[idx].number = idx; | |
1354 | card->mixer_oss = mixer; | |
1355 | snd_mixer_oss_build(mixer); | |
1356 | snd_mixer_oss_proc_init(mixer); | |
c461482c | 1357 | } else { |
1da177e4 LT |
1358 | mixer = card->mixer_oss; |
1359 | if (mixer == NULL) | |
1360 | return 0; | |
c461482c | 1361 | if (mixer->oss_dev_alloc) { |
1da177e4 | 1362 | #ifdef SNDRV_OSS_INFO_DEV_MIXERS |
c461482c | 1363 | snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); |
1da177e4 | 1364 | #endif |
1da177e4 | 1365 | snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); |
c461482c TI |
1366 | mixer->oss_dev_alloc = 0; |
1367 | } | |
1368 | if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) | |
1369 | return 0; | |
1da177e4 LT |
1370 | snd_mixer_oss_proc_done(mixer); |
1371 | return snd_mixer_oss_free1(mixer); | |
1372 | } | |
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | static int __init alsa_mixer_oss_init(void) | |
1377 | { | |
1378 | int idx; | |
1379 | ||
1380 | snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler; | |
1381 | for (idx = 0; idx < SNDRV_CARDS; idx++) { | |
1382 | if (snd_cards[idx]) | |
1383 | snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER); | |
1384 | } | |
1385 | return 0; | |
1386 | } | |
1387 | ||
1388 | static void __exit alsa_mixer_oss_exit(void) | |
1389 | { | |
1390 | int idx; | |
1391 | ||
1392 | snd_mixer_oss_notify_callback = NULL; | |
1393 | for (idx = 0; idx < SNDRV_CARDS; idx++) { | |
1394 | if (snd_cards[idx]) | |
1395 | snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE); | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | module_init(alsa_mixer_oss_init) | |
1400 | module_exit(alsa_mixer_oss_exit) | |
1401 | ||
1402 | EXPORT_SYMBOL(snd_mixer_oss_ioctl_card); |