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Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 LG |
5 | * Copyright 2005 Openedhand Ltd. |
6 | * | |
d331124d | 7 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
8 | * with code, comments and ideas from :- |
9 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
15 | * | |
db2a4165 FM |
16 | * TODO: |
17 | * o Add hw rules to enforce rates, etc. | |
18 | * o More testing with other codecs/machines. | |
19 | * o Add more codecs and platforms to ensure good API coverage. | |
20 | * o Support TDM on PCM and I2S | |
21 | */ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/moduleparam.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/pm.h> | |
28 | #include <linux/bitops.h> | |
12ef193d | 29 | #include <linux/debugfs.h> |
db2a4165 | 30 | #include <linux/platform_device.h> |
db2a4165 FM |
31 | #include <sound/core.h> |
32 | #include <sound/pcm.h> | |
33 | #include <sound/pcm_params.h> | |
34 | #include <sound/soc.h> | |
35 | #include <sound/soc-dapm.h> | |
36 | #include <sound/initval.h> | |
37 | ||
db2a4165 FM |
38 | static DEFINE_MUTEX(pcm_mutex); |
39 | static DEFINE_MUTEX(io_mutex); | |
db2a4165 FM |
40 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
41 | ||
384c89e2 MB |
42 | #ifdef CONFIG_DEBUG_FS |
43 | static struct dentry *debugfs_root; | |
44 | #endif | |
45 | ||
c5af3a2e MB |
46 | static DEFINE_MUTEX(client_mutex); |
47 | static LIST_HEAD(card_list); | |
9115171a | 48 | static LIST_HEAD(dai_list); |
12a48a8c | 49 | static LIST_HEAD(platform_list); |
0d0cf00a | 50 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
51 | |
52 | static int snd_soc_register_card(struct snd_soc_card *card); | |
53 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
54 | ||
db2a4165 FM |
55 | /* |
56 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
57 | * It can be used to eliminate pops between different playback streams, e.g. | |
58 | * between two audio tracks. | |
59 | */ | |
60 | static int pmdown_time = 5000; | |
61 | module_param(pmdown_time, int, 0); | |
62 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
63 | ||
965ac42c LG |
64 | /* |
65 | * This function forces any delayed work to be queued and run. | |
66 | */ | |
67 | static int run_delayed_work(struct delayed_work *dwork) | |
68 | { | |
69 | int ret; | |
70 | ||
71 | /* cancel any work waiting to be queued. */ | |
72 | ret = cancel_delayed_work(dwork); | |
73 | ||
74 | /* if there was any work waiting then we run it now and | |
75 | * wait for it's completion */ | |
76 | if (ret) { | |
77 | schedule_delayed_work(dwork, 0); | |
78 | flush_scheduled_work(); | |
79 | } | |
80 | return ret; | |
81 | } | |
82 | ||
db2a4165 FM |
83 | #ifdef CONFIG_SND_SOC_AC97_BUS |
84 | /* unregister ac97 codec */ | |
85 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
86 | { | |
87 | if (codec->ac97->dev.bus) | |
88 | device_unregister(&codec->ac97->dev); | |
89 | return 0; | |
90 | } | |
91 | ||
92 | /* stop no dev release warning */ | |
93 | static void soc_ac97_device_release(struct device *dev){} | |
94 | ||
95 | /* register ac97 codec to bus */ | |
96 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
97 | { | |
98 | int err; | |
99 | ||
100 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 101 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
102 | codec->ac97->dev.release = soc_ac97_device_release; |
103 | ||
bb072bf0 KS |
104 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
105 | codec->card->number, 0, codec->name); | |
db2a4165 FM |
106 | err = device_register(&codec->ac97->dev); |
107 | if (err < 0) { | |
108 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
109 | codec->ac97->dev.bus = NULL; | |
110 | return err; | |
111 | } | |
112 | return 0; | |
113 | } | |
114 | #endif | |
115 | ||
06f409d7 MB |
116 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
117 | { | |
118 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
119 | struct snd_soc_device *socdev = rtd->socdev; | |
120 | struct snd_soc_card *card = socdev->card; | |
121 | struct snd_soc_dai_link *machine = rtd->dai; | |
122 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; | |
123 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
124 | int ret; | |
125 | ||
126 | if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates || | |
127 | machine->symmetric_rates) { | |
128 | dev_dbg(card->dev, "Symmetry forces %dHz rate\n", | |
129 | machine->rate); | |
130 | ||
131 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
132 | SNDRV_PCM_HW_PARAM_RATE, | |
133 | machine->rate, | |
134 | machine->rate); | |
135 | if (ret < 0) { | |
136 | dev_err(card->dev, | |
137 | "Unable to apply rate symmetry constraint: %d\n", ret); | |
138 | return ret; | |
139 | } | |
140 | } | |
141 | ||
142 | return 0; | |
143 | } | |
144 | ||
db2a4165 FM |
145 | /* |
146 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
147 | * then initialized and any private data can be allocated. This also calls | |
148 | * startup for the cpu DAI, platform, machine and codec DAI. | |
149 | */ | |
150 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
151 | { | |
152 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
153 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 154 | struct snd_soc_card *card = socdev->card; |
db2a4165 | 155 | struct snd_pcm_runtime *runtime = substream->runtime; |
cb666e5b | 156 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 157 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
158 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
159 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
160 | int ret = 0; |
161 | ||
162 | mutex_lock(&pcm_mutex); | |
163 | ||
164 | /* startup the audio subsystem */ | |
6335d055 EM |
165 | if (cpu_dai->ops->startup) { |
166 | ret = cpu_dai->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
167 | if (ret < 0) { |
168 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 169 | cpu_dai->name); |
db2a4165 FM |
170 | goto out; |
171 | } | |
172 | } | |
173 | ||
174 | if (platform->pcm_ops->open) { | |
175 | ret = platform->pcm_ops->open(substream); | |
176 | if (ret < 0) { | |
177 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
178 | goto platform_err; | |
179 | } | |
180 | } | |
181 | ||
6335d055 EM |
182 | if (codec_dai->ops->startup) { |
183 | ret = codec_dai->ops->startup(substream, codec_dai); | |
db2a4165 | 184 | if (ret < 0) { |
cb666e5b LG |
185 | printk(KERN_ERR "asoc: can't open codec %s\n", |
186 | codec_dai->name); | |
187 | goto codec_dai_err; | |
db2a4165 FM |
188 | } |
189 | } | |
190 | ||
cb666e5b LG |
191 | if (machine->ops && machine->ops->startup) { |
192 | ret = machine->ops->startup(substream); | |
db2a4165 | 193 | if (ret < 0) { |
cb666e5b LG |
194 | printk(KERN_ERR "asoc: %s startup failed\n", machine->name); |
195 | goto machine_err; | |
db2a4165 FM |
196 | } |
197 | } | |
198 | ||
db2a4165 FM |
199 | /* Check that the codec and cpu DAI's are compatible */ |
200 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
201 | runtime->hw.rate_min = | |
3ff3f64b MB |
202 | max(codec_dai->playback.rate_min, |
203 | cpu_dai->playback.rate_min); | |
db2a4165 | 204 | runtime->hw.rate_max = |
3ff3f64b MB |
205 | min(codec_dai->playback.rate_max, |
206 | cpu_dai->playback.rate_max); | |
db2a4165 | 207 | runtime->hw.channels_min = |
cb666e5b LG |
208 | max(codec_dai->playback.channels_min, |
209 | cpu_dai->playback.channels_min); | |
db2a4165 | 210 | runtime->hw.channels_max = |
cb666e5b LG |
211 | min(codec_dai->playback.channels_max, |
212 | cpu_dai->playback.channels_max); | |
213 | runtime->hw.formats = | |
214 | codec_dai->playback.formats & cpu_dai->playback.formats; | |
215 | runtime->hw.rates = | |
216 | codec_dai->playback.rates & cpu_dai->playback.rates; | |
db2a4165 FM |
217 | } else { |
218 | runtime->hw.rate_min = | |
3ff3f64b MB |
219 | max(codec_dai->capture.rate_min, |
220 | cpu_dai->capture.rate_min); | |
db2a4165 | 221 | runtime->hw.rate_max = |
3ff3f64b MB |
222 | min(codec_dai->capture.rate_max, |
223 | cpu_dai->capture.rate_max); | |
db2a4165 | 224 | runtime->hw.channels_min = |
cb666e5b LG |
225 | max(codec_dai->capture.channels_min, |
226 | cpu_dai->capture.channels_min); | |
db2a4165 | 227 | runtime->hw.channels_max = |
cb666e5b LG |
228 | min(codec_dai->capture.channels_max, |
229 | cpu_dai->capture.channels_max); | |
230 | runtime->hw.formats = | |
231 | codec_dai->capture.formats & cpu_dai->capture.formats; | |
232 | runtime->hw.rates = | |
233 | codec_dai->capture.rates & cpu_dai->capture.rates; | |
db2a4165 FM |
234 | } |
235 | ||
236 | snd_pcm_limit_hw_rates(runtime); | |
237 | if (!runtime->hw.rates) { | |
238 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b LG |
239 | codec_dai->name, cpu_dai->name); |
240 | goto machine_err; | |
db2a4165 FM |
241 | } |
242 | if (!runtime->hw.formats) { | |
243 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b LG |
244 | codec_dai->name, cpu_dai->name); |
245 | goto machine_err; | |
db2a4165 FM |
246 | } |
247 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
248 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
cb666e5b LG |
249 | codec_dai->name, cpu_dai->name); |
250 | goto machine_err; | |
db2a4165 FM |
251 | } |
252 | ||
06f409d7 MB |
253 | /* Symmetry only applies if we've already got an active stream. */ |
254 | if (cpu_dai->active || codec_dai->active) { | |
255 | ret = soc_pcm_apply_symmetry(substream); | |
256 | if (ret != 0) | |
257 | goto machine_err; | |
258 | } | |
259 | ||
f24368c2 MB |
260 | pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); |
261 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); | |
262 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
263 | runtime->hw.channels_max); | |
264 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
265 | runtime->hw.rate_max); | |
db2a4165 | 266 | |
db2a4165 | 267 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
cb666e5b | 268 | cpu_dai->playback.active = codec_dai->playback.active = 1; |
db2a4165 | 269 | else |
cb666e5b LG |
270 | cpu_dai->capture.active = codec_dai->capture.active = 1; |
271 | cpu_dai->active = codec_dai->active = 1; | |
272 | cpu_dai->runtime = runtime; | |
6627a653 | 273 | card->codec->active++; |
db2a4165 FM |
274 | mutex_unlock(&pcm_mutex); |
275 | return 0; | |
276 | ||
cb666e5b | 277 | machine_err: |
db2a4165 FM |
278 | if (machine->ops && machine->ops->shutdown) |
279 | machine->ops->shutdown(substream); | |
280 | ||
cb666e5b | 281 | codec_dai_err: |
db2a4165 FM |
282 | if (platform->pcm_ops->close) |
283 | platform->pcm_ops->close(substream); | |
284 | ||
285 | platform_err: | |
6335d055 EM |
286 | if (cpu_dai->ops->shutdown) |
287 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
288 | out: |
289 | mutex_unlock(&pcm_mutex); | |
290 | return ret; | |
291 | } | |
292 | ||
293 | /* | |
3a4fa0a2 | 294 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
295 | * This is to ensure there are no pops or clicks in between any music tracks |
296 | * due to DAPM power cycling. | |
297 | */ | |
4484bb2e | 298 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 299 | { |
6308419a MB |
300 | struct snd_soc_card *card = container_of(work, struct snd_soc_card, |
301 | delayed_work.work); | |
302 | struct snd_soc_device *socdev = card->socdev; | |
6627a653 | 303 | struct snd_soc_codec *codec = card->codec; |
3c4b266f | 304 | struct snd_soc_dai *codec_dai; |
db2a4165 FM |
305 | int i; |
306 | ||
307 | mutex_lock(&pcm_mutex); | |
3ff3f64b | 308 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
309 | codec_dai = &codec->dai[i]; |
310 | ||
f24368c2 MB |
311 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", |
312 | codec_dai->playback.stream_name, | |
313 | codec_dai->playback.active ? "active" : "inactive", | |
314 | codec_dai->pop_wait ? "yes" : "no"); | |
db2a4165 FM |
315 | |
316 | /* are we waiting on this codec DAI stream */ | |
317 | if (codec_dai->pop_wait == 1) { | |
318 | ||
0be9898a | 319 | /* Reduce power if no longer active */ |
3c1c47e0 | 320 | if (codec->active == 0) { |
f24368c2 MB |
321 | pr_debug("pop wq D1 %s %s\n", codec->name, |
322 | codec_dai->playback.stream_name); | |
0be9898a MB |
323 | snd_soc_dapm_set_bias_level(socdev, |
324 | SND_SOC_BIAS_PREPARE); | |
3c1c47e0 LG |
325 | } |
326 | ||
db2a4165 | 327 | codec_dai->pop_wait = 0; |
0b4d221b LG |
328 | snd_soc_dapm_stream_event(codec, |
329 | codec_dai->playback.stream_name, | |
db2a4165 FM |
330 | SND_SOC_DAPM_STREAM_STOP); |
331 | ||
0be9898a | 332 | /* Fall into standby if no longer active */ |
db2a4165 | 333 | if (codec->active == 0) { |
f24368c2 MB |
334 | pr_debug("pop wq D3 %s %s\n", codec->name, |
335 | codec_dai->playback.stream_name); | |
0be9898a MB |
336 | snd_soc_dapm_set_bias_level(socdev, |
337 | SND_SOC_BIAS_STANDBY); | |
db2a4165 FM |
338 | } |
339 | } | |
340 | } | |
341 | mutex_unlock(&pcm_mutex); | |
342 | } | |
343 | ||
344 | /* | |
345 | * Called by ALSA when a PCM substream is closed. Private data can be | |
346 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
347 | * shutdown. | |
348 | */ | |
349 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
350 | { | |
351 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
352 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 353 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 354 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 355 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
356 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
357 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 358 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
359 | |
360 | mutex_lock(&pcm_mutex); | |
361 | ||
362 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
cb666e5b | 363 | cpu_dai->playback.active = codec_dai->playback.active = 0; |
db2a4165 | 364 | else |
cb666e5b | 365 | cpu_dai->capture.active = codec_dai->capture.active = 0; |
db2a4165 | 366 | |
cb666e5b LG |
367 | if (codec_dai->playback.active == 0 && |
368 | codec_dai->capture.active == 0) { | |
369 | cpu_dai->active = codec_dai->active = 0; | |
db2a4165 FM |
370 | } |
371 | codec->active--; | |
372 | ||
6010b2da MB |
373 | /* Muting the DAC suppresses artifacts caused during digital |
374 | * shutdown, for example from stopping clocks. | |
375 | */ | |
376 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
377 | snd_soc_dai_digital_mute(codec_dai, 1); | |
378 | ||
6335d055 EM |
379 | if (cpu_dai->ops->shutdown) |
380 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 381 | |
6335d055 EM |
382 | if (codec_dai->ops->shutdown) |
383 | codec_dai->ops->shutdown(substream, codec_dai); | |
db2a4165 FM |
384 | |
385 | if (machine->ops && machine->ops->shutdown) | |
386 | machine->ops->shutdown(substream); | |
387 | ||
388 | if (platform->pcm_ops->close) | |
389 | platform->pcm_ops->close(substream); | |
cb666e5b | 390 | cpu_dai->runtime = NULL; |
db2a4165 FM |
391 | |
392 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
393 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 394 | codec_dai->pop_wait = 1; |
6308419a | 395 | schedule_delayed_work(&card->delayed_work, |
db2a4165 FM |
396 | msecs_to_jiffies(pmdown_time)); |
397 | } else { | |
398 | /* capture streams can be powered down now */ | |
cb666e5b | 399 | snd_soc_dapm_stream_event(codec, |
0b4d221b LG |
400 | codec_dai->capture.stream_name, |
401 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 402 | |
0b4d221b | 403 | if (codec->active == 0 && codec_dai->pop_wait == 0) |
0be9898a MB |
404 | snd_soc_dapm_set_bias_level(socdev, |
405 | SND_SOC_BIAS_STANDBY); | |
db2a4165 FM |
406 | } |
407 | ||
408 | mutex_unlock(&pcm_mutex); | |
409 | return 0; | |
410 | } | |
411 | ||
412 | /* | |
413 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
414 | * rate, etc. This function is non atomic and can be called multiple times, | |
415 | * it can refer to the runtime info. | |
416 | */ | |
417 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
418 | { | |
419 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
420 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 421 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 422 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 423 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
424 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
425 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 426 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
427 | int ret = 0; |
428 | ||
429 | mutex_lock(&pcm_mutex); | |
cb666e5b LG |
430 | |
431 | if (machine->ops && machine->ops->prepare) { | |
432 | ret = machine->ops->prepare(substream); | |
433 | if (ret < 0) { | |
434 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
435 | goto out; | |
436 | } | |
437 | } | |
438 | ||
db2a4165 FM |
439 | if (platform->pcm_ops->prepare) { |
440 | ret = platform->pcm_ops->prepare(substream); | |
a71a468a LG |
441 | if (ret < 0) { |
442 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 443 | goto out; |
a71a468a | 444 | } |
db2a4165 FM |
445 | } |
446 | ||
6335d055 EM |
447 | if (codec_dai->ops->prepare) { |
448 | ret = codec_dai->ops->prepare(substream, codec_dai); | |
a71a468a LG |
449 | if (ret < 0) { |
450 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 451 | goto out; |
a71a468a | 452 | } |
db2a4165 FM |
453 | } |
454 | ||
6335d055 EM |
455 | if (cpu_dai->ops->prepare) { |
456 | ret = cpu_dai->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
457 | if (ret < 0) { |
458 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
459 | goto out; | |
460 | } | |
461 | } | |
db2a4165 | 462 | |
d45f6219 MB |
463 | /* cancel any delayed stream shutdown that is pending */ |
464 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
465 | codec_dai->pop_wait) { | |
466 | codec_dai->pop_wait = 0; | |
6308419a | 467 | cancel_delayed_work(&card->delayed_work); |
d45f6219 | 468 | } |
db2a4165 | 469 | |
d45f6219 MB |
470 | /* do we need to power up codec */ |
471 | if (codec->bias_level != SND_SOC_BIAS_ON) { | |
472 | snd_soc_dapm_set_bias_level(socdev, | |
473 | SND_SOC_BIAS_PREPARE); | |
db2a4165 | 474 | |
d45f6219 MB |
475 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
476 | snd_soc_dapm_stream_event(codec, | |
cb666e5b | 477 | codec_dai->playback.stream_name, |
db2a4165 | 478 | SND_SOC_DAPM_STREAM_START); |
d45f6219 MB |
479 | else |
480 | snd_soc_dapm_stream_event(codec, | |
cb666e5b | 481 | codec_dai->capture.stream_name, |
db2a4165 FM |
482 | SND_SOC_DAPM_STREAM_START); |
483 | ||
d45f6219 MB |
484 | snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_ON); |
485 | snd_soc_dai_digital_mute(codec_dai, 0); | |
db2a4165 | 486 | |
d45f6219 MB |
487 | } else { |
488 | /* codec already powered - power on widgets */ | |
489 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
490 | snd_soc_dapm_stream_event(codec, | |
cb666e5b | 491 | codec_dai->playback.stream_name, |
db2a4165 | 492 | SND_SOC_DAPM_STREAM_START); |
d45f6219 MB |
493 | else |
494 | snd_soc_dapm_stream_event(codec, | |
cb666e5b | 495 | codec_dai->capture.stream_name, |
db2a4165 | 496 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 497 | |
d45f6219 | 498 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
499 | } |
500 | ||
501 | out: | |
502 | mutex_unlock(&pcm_mutex); | |
503 | return ret; | |
504 | } | |
505 | ||
506 | /* | |
507 | * Called by ALSA when the hardware params are set by application. This | |
508 | * function can also be called multiple times and can allocate buffers | |
509 | * (using snd_pcm_lib_* ). It's non-atomic. | |
510 | */ | |
511 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
512 | struct snd_pcm_hw_params *params) | |
513 | { | |
514 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
515 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 516 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
517 | struct snd_soc_card *card = socdev->card; |
518 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
519 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
520 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
521 | int ret = 0; |
522 | ||
523 | mutex_lock(&pcm_mutex); | |
524 | ||
cb666e5b LG |
525 | if (machine->ops && machine->ops->hw_params) { |
526 | ret = machine->ops->hw_params(substream, params); | |
527 | if (ret < 0) { | |
528 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 529 | goto out; |
cb666e5b | 530 | } |
db2a4165 FM |
531 | } |
532 | ||
6335d055 EM |
533 | if (codec_dai->ops->hw_params) { |
534 | ret = codec_dai->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
535 | if (ret < 0) { |
536 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
537 | codec_dai->name); |
538 | goto codec_err; | |
db2a4165 FM |
539 | } |
540 | } | |
541 | ||
6335d055 EM |
542 | if (cpu_dai->ops->hw_params) { |
543 | ret = cpu_dai->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 544 | if (ret < 0) { |
3ff3f64b | 545 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 546 | cpu_dai->name); |
db2a4165 FM |
547 | goto interface_err; |
548 | } | |
549 | } | |
550 | ||
551 | if (platform->pcm_ops->hw_params) { | |
552 | ret = platform->pcm_ops->hw_params(substream, params); | |
553 | if (ret < 0) { | |
3ff3f64b | 554 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
555 | platform->name); |
556 | goto platform_err; | |
557 | } | |
558 | } | |
559 | ||
06f409d7 MB |
560 | machine->rate = params_rate(params); |
561 | ||
db2a4165 FM |
562 | out: |
563 | mutex_unlock(&pcm_mutex); | |
564 | return ret; | |
565 | ||
db2a4165 | 566 | platform_err: |
6335d055 EM |
567 | if (cpu_dai->ops->hw_free) |
568 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
569 | |
570 | interface_err: | |
6335d055 EM |
571 | if (codec_dai->ops->hw_free) |
572 | codec_dai->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
573 | |
574 | codec_err: | |
3ff3f64b | 575 | if (machine->ops && machine->ops->hw_free) |
cb666e5b | 576 | machine->ops->hw_free(substream); |
db2a4165 FM |
577 | |
578 | mutex_unlock(&pcm_mutex); | |
579 | return ret; | |
580 | } | |
581 | ||
582 | /* | |
583 | * Free's resources allocated by hw_params, can be called multiple times | |
584 | */ | |
585 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
586 | { | |
587 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
588 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 589 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
590 | struct snd_soc_card *card = socdev->card; |
591 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
592 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
593 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 594 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
595 | |
596 | mutex_lock(&pcm_mutex); | |
597 | ||
598 | /* apply codec digital mute */ | |
8c6529db LG |
599 | if (!codec->active) |
600 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
601 | |
602 | /* free any machine hw params */ | |
603 | if (machine->ops && machine->ops->hw_free) | |
604 | machine->ops->hw_free(substream); | |
605 | ||
606 | /* free any DMA resources */ | |
607 | if (platform->pcm_ops->hw_free) | |
608 | platform->pcm_ops->hw_free(substream); | |
609 | ||
610 | /* now free hw params for the DAI's */ | |
6335d055 EM |
611 | if (codec_dai->ops->hw_free) |
612 | codec_dai->ops->hw_free(substream, codec_dai); | |
db2a4165 | 613 | |
6335d055 EM |
614 | if (cpu_dai->ops->hw_free) |
615 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
616 | |
617 | mutex_unlock(&pcm_mutex); | |
618 | return 0; | |
619 | } | |
620 | ||
621 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
622 | { | |
623 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
624 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 625 | struct snd_soc_card *card= socdev->card; |
cb666e5b | 626 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 627 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
628 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
629 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
630 | int ret; |
631 | ||
6335d055 EM |
632 | if (codec_dai->ops->trigger) { |
633 | ret = codec_dai->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
634 | if (ret < 0) |
635 | return ret; | |
636 | } | |
637 | ||
638 | if (platform->pcm_ops->trigger) { | |
639 | ret = platform->pcm_ops->trigger(substream, cmd); | |
640 | if (ret < 0) | |
641 | return ret; | |
642 | } | |
643 | ||
6335d055 EM |
644 | if (cpu_dai->ops->trigger) { |
645 | ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
646 | if (ret < 0) |
647 | return ret; | |
648 | } | |
649 | return 0; | |
650 | } | |
651 | ||
652 | /* ASoC PCM operations */ | |
653 | static struct snd_pcm_ops soc_pcm_ops = { | |
654 | .open = soc_pcm_open, | |
655 | .close = soc_codec_close, | |
656 | .hw_params = soc_pcm_hw_params, | |
657 | .hw_free = soc_pcm_hw_free, | |
658 | .prepare = soc_pcm_prepare, | |
659 | .trigger = soc_pcm_trigger, | |
660 | }; | |
661 | ||
662 | #ifdef CONFIG_PM | |
663 | /* powers down audio subsystem for suspend */ | |
664 | static int soc_suspend(struct platform_device *pdev, pm_message_t state) | |
665 | { | |
3ff3f64b | 666 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
87506549 | 667 | struct snd_soc_card *card = socdev->card; |
87689d56 | 668 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 669 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 670 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
671 | int i; |
672 | ||
6ed25978 AG |
673 | /* Due to the resume being scheduled into a workqueue we could |
674 | * suspend before that's finished - wait for it to complete. | |
675 | */ | |
676 | snd_power_lock(codec->card); | |
677 | snd_power_wait(codec->card, SNDRV_CTL_POWER_D0); | |
678 | snd_power_unlock(codec->card); | |
679 | ||
680 | /* we're going to block userspace touching us until resume completes */ | |
681 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot); | |
682 | ||
db2a4165 | 683 | /* mute any active DAC's */ |
dee89c4d MB |
684 | for (i = 0; i < card->num_links; i++) { |
685 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
686 | if (dai->ops->digital_mute && dai->playback.active) |
687 | dai->ops->digital_mute(dai, 1); | |
db2a4165 FM |
688 | } |
689 | ||
4ccab3e7 | 690 | /* suspend all pcms */ |
87506549 MB |
691 | for (i = 0; i < card->num_links; i++) |
692 | snd_pcm_suspend_all(card->dai_link[i].pcm); | |
4ccab3e7 | 693 | |
87506549 MB |
694 | if (card->suspend_pre) |
695 | card->suspend_pre(pdev, state); | |
db2a4165 | 696 | |
87506549 MB |
697 | for (i = 0; i < card->num_links; i++) { |
698 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 699 | if (cpu_dai->suspend && !cpu_dai->ac97_control) |
dc7d7b83 | 700 | cpu_dai->suspend(cpu_dai); |
db2a4165 | 701 | if (platform->suspend) |
07c84d04 | 702 | platform->suspend(cpu_dai); |
db2a4165 FM |
703 | } |
704 | ||
705 | /* close any waiting streams and save state */ | |
6308419a | 706 | run_delayed_work(&card->delayed_work); |
0be9898a | 707 | codec->suspend_bias_level = codec->bias_level; |
db2a4165 | 708 | |
3ff3f64b | 709 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
710 | char *stream = codec->dai[i].playback.stream_name; |
711 | if (stream != NULL) | |
712 | snd_soc_dapm_stream_event(codec, stream, | |
713 | SND_SOC_DAPM_STREAM_SUSPEND); | |
714 | stream = codec->dai[i].capture.stream_name; | |
715 | if (stream != NULL) | |
716 | snd_soc_dapm_stream_event(codec, stream, | |
717 | SND_SOC_DAPM_STREAM_SUSPEND); | |
718 | } | |
719 | ||
720 | if (codec_dev->suspend) | |
721 | codec_dev->suspend(pdev, state); | |
722 | ||
87506549 MB |
723 | for (i = 0; i < card->num_links; i++) { |
724 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 725 | if (cpu_dai->suspend && cpu_dai->ac97_control) |
dc7d7b83 | 726 | cpu_dai->suspend(cpu_dai); |
db2a4165 FM |
727 | } |
728 | ||
87506549 MB |
729 | if (card->suspend_post) |
730 | card->suspend_post(pdev, state); | |
db2a4165 FM |
731 | |
732 | return 0; | |
733 | } | |
734 | ||
6ed25978 AG |
735 | /* deferred resume work, so resume can complete before we finished |
736 | * setting our codec back up, which can be very slow on I2C | |
737 | */ | |
738 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 739 | { |
6308419a MB |
740 | struct snd_soc_card *card = container_of(work, |
741 | struct snd_soc_card, | |
742 | deferred_resume_work); | |
743 | struct snd_soc_device *socdev = card->socdev; | |
87689d56 | 744 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 745 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 746 | struct snd_soc_codec *codec = card->codec; |
6ed25978 | 747 | struct platform_device *pdev = to_platform_device(socdev->dev); |
db2a4165 FM |
748 | int i; |
749 | ||
6ed25978 AG |
750 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
751 | * so userspace apps are blocked from touching us | |
752 | */ | |
753 | ||
fde22f27 | 754 | dev_dbg(socdev->dev, "starting resume work\n"); |
6ed25978 | 755 | |
87506549 MB |
756 | if (card->resume_pre) |
757 | card->resume_pre(pdev); | |
db2a4165 | 758 | |
87506549 MB |
759 | for (i = 0; i < card->num_links; i++) { |
760 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 761 | if (cpu_dai->resume && cpu_dai->ac97_control) |
dc7d7b83 | 762 | cpu_dai->resume(cpu_dai); |
db2a4165 FM |
763 | } |
764 | ||
765 | if (codec_dev->resume) | |
766 | codec_dev->resume(pdev); | |
767 | ||
3ff3f64b MB |
768 | for (i = 0; i < codec->num_dai; i++) { |
769 | char *stream = codec->dai[i].playback.stream_name; | |
db2a4165 FM |
770 | if (stream != NULL) |
771 | snd_soc_dapm_stream_event(codec, stream, | |
772 | SND_SOC_DAPM_STREAM_RESUME); | |
773 | stream = codec->dai[i].capture.stream_name; | |
774 | if (stream != NULL) | |
775 | snd_soc_dapm_stream_event(codec, stream, | |
776 | SND_SOC_DAPM_STREAM_RESUME); | |
777 | } | |
778 | ||
3ff3f64b | 779 | /* unmute any active DACs */ |
dee89c4d MB |
780 | for (i = 0; i < card->num_links; i++) { |
781 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
782 | if (dai->ops->digital_mute && dai->playback.active) |
783 | dai->ops->digital_mute(dai, 0); | |
db2a4165 FM |
784 | } |
785 | ||
87506549 MB |
786 | for (i = 0; i < card->num_links; i++) { |
787 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 788 | if (cpu_dai->resume && !cpu_dai->ac97_control) |
dc7d7b83 | 789 | cpu_dai->resume(cpu_dai); |
db2a4165 | 790 | if (platform->resume) |
07c84d04 | 791 | platform->resume(cpu_dai); |
db2a4165 FM |
792 | } |
793 | ||
87506549 MB |
794 | if (card->resume_post) |
795 | card->resume_post(pdev); | |
db2a4165 | 796 | |
fde22f27 | 797 | dev_dbg(socdev->dev, "resume work completed\n"); |
6ed25978 AG |
798 | |
799 | /* userspace can access us now we are back as we were before */ | |
800 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0); | |
801 | } | |
802 | ||
803 | /* powers up audio subsystem after a suspend */ | |
804 | static int soc_resume(struct platform_device *pdev) | |
805 | { | |
806 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6308419a | 807 | struct snd_soc_card *card = socdev->card; |
64ab9baa | 808 | struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai; |
6ed25978 | 809 | |
64ab9baa MB |
810 | /* AC97 devices might have other drivers hanging off them so |
811 | * need to resume immediately. Other drivers don't have that | |
812 | * problem and may take a substantial amount of time to resume | |
813 | * due to I/O costs and anti-pop so handle them out of line. | |
814 | */ | |
815 | if (cpu_dai->ac97_control) { | |
816 | dev_dbg(socdev->dev, "Resuming AC97 immediately\n"); | |
817 | soc_resume_deferred(&card->deferred_resume_work); | |
818 | } else { | |
819 | dev_dbg(socdev->dev, "Scheduling resume work\n"); | |
820 | if (!schedule_work(&card->deferred_resume_work)) | |
821 | dev_err(socdev->dev, "resume work item may be lost\n"); | |
822 | } | |
6ed25978 | 823 | |
db2a4165 FM |
824 | return 0; |
825 | } | |
826 | ||
827 | #else | |
828 | #define soc_suspend NULL | |
829 | #define soc_resume NULL | |
830 | #endif | |
831 | ||
435c5e25 | 832 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
db2a4165 | 833 | { |
435c5e25 MB |
834 | struct platform_device *pdev = container_of(card->dev, |
835 | struct platform_device, | |
836 | dev); | |
837 | struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev; | |
838 | struct snd_soc_platform *platform; | |
839 | struct snd_soc_dai *dai; | |
6b05eda6 | 840 | int i, found, ret, ac97; |
435c5e25 MB |
841 | |
842 | if (card->instantiated) | |
843 | return; | |
844 | ||
845 | found = 0; | |
846 | list_for_each_entry(platform, &platform_list, list) | |
847 | if (card->platform == platform) { | |
848 | found = 1; | |
849 | break; | |
850 | } | |
851 | if (!found) { | |
852 | dev_dbg(card->dev, "Platform %s not registered\n", | |
853 | card->platform->name); | |
854 | return; | |
855 | } | |
6308419a | 856 | |
6b05eda6 | 857 | ac97 = 0; |
435c5e25 MB |
858 | for (i = 0; i < card->num_links; i++) { |
859 | found = 0; | |
860 | list_for_each_entry(dai, &dai_list, list) | |
861 | if (card->dai_link[i].cpu_dai == dai) { | |
862 | found = 1; | |
863 | break; | |
864 | } | |
865 | if (!found) { | |
866 | dev_dbg(card->dev, "DAI %s not registered\n", | |
867 | card->dai_link[i].cpu_dai->name); | |
868 | return; | |
869 | } | |
6b05eda6 MB |
870 | |
871 | if (card->dai_link[i].cpu_dai->ac97_control) | |
872 | ac97 = 1; | |
c5af3a2e MB |
873 | } |
874 | ||
6b05eda6 MB |
875 | /* If we have AC97 in the system then don't wait for the |
876 | * codec. This will need revisiting if we have to handle | |
877 | * systems with mixed AC97 and non-AC97 parts. Only check for | |
878 | * DAIs currently; we can't do this per link since some AC97 | |
879 | * codecs have non-AC97 DAIs. | |
880 | */ | |
881 | if (!ac97) | |
882 | for (i = 0; i < card->num_links; i++) { | |
883 | found = 0; | |
884 | list_for_each_entry(dai, &dai_list, list) | |
885 | if (card->dai_link[i].codec_dai == dai) { | |
886 | found = 1; | |
887 | break; | |
888 | } | |
889 | if (!found) { | |
890 | dev_dbg(card->dev, "DAI %s not registered\n", | |
891 | card->dai_link[i].codec_dai->name); | |
892 | return; | |
893 | } | |
894 | } | |
895 | ||
435c5e25 MB |
896 | /* Note that we do not current check for codec components */ |
897 | ||
898 | dev_dbg(card->dev, "All components present, instantiating\n"); | |
899 | ||
900 | /* Found everything, bring it up */ | |
87506549 MB |
901 | if (card->probe) { |
902 | ret = card->probe(pdev); | |
3ff3f64b | 903 | if (ret < 0) |
435c5e25 | 904 | return; |
db2a4165 FM |
905 | } |
906 | ||
87506549 MB |
907 | for (i = 0; i < card->num_links; i++) { |
908 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 909 | if (cpu_dai->probe) { |
bdb92876 | 910 | ret = cpu_dai->probe(pdev, cpu_dai); |
3ff3f64b | 911 | if (ret < 0) |
db2a4165 FM |
912 | goto cpu_dai_err; |
913 | } | |
914 | } | |
915 | ||
916 | if (codec_dev->probe) { | |
917 | ret = codec_dev->probe(pdev); | |
3ff3f64b | 918 | if (ret < 0) |
db2a4165 FM |
919 | goto cpu_dai_err; |
920 | } | |
921 | ||
922 | if (platform->probe) { | |
923 | ret = platform->probe(pdev); | |
3ff3f64b | 924 | if (ret < 0) |
db2a4165 FM |
925 | goto platform_err; |
926 | } | |
927 | ||
928 | /* DAPM stream work */ | |
6308419a | 929 | INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work); |
1301a964 | 930 | #ifdef CONFIG_PM |
6ed25978 | 931 | /* deferred resume work */ |
6308419a | 932 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); |
1301a964 | 933 | #endif |
6ed25978 | 934 | |
435c5e25 MB |
935 | card->instantiated = 1; |
936 | ||
937 | return; | |
db2a4165 | 938 | |
db2a4165 FM |
939 | platform_err: |
940 | if (codec_dev->remove) | |
941 | codec_dev->remove(pdev); | |
942 | ||
943 | cpu_dai_err: | |
18b9b3d9 | 944 | for (i--; i >= 0; i--) { |
87506549 | 945 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
db2a4165 | 946 | if (cpu_dai->remove) |
bdb92876 | 947 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
948 | } |
949 | ||
87506549 MB |
950 | if (card->remove) |
951 | card->remove(pdev); | |
435c5e25 | 952 | } |
db2a4165 | 953 | |
435c5e25 MB |
954 | /* |
955 | * Attempt to initialise any uninitalised cards. Must be called with | |
956 | * client_mutex. | |
957 | */ | |
958 | static void snd_soc_instantiate_cards(void) | |
959 | { | |
960 | struct snd_soc_card *card; | |
961 | list_for_each_entry(card, &card_list, list) | |
962 | snd_soc_instantiate_card(card); | |
963 | } | |
964 | ||
965 | /* probes a new socdev */ | |
966 | static int soc_probe(struct platform_device *pdev) | |
967 | { | |
968 | int ret = 0; | |
969 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
970 | struct snd_soc_card *card = socdev->card; | |
971 | ||
972 | /* Bodge while we push things out of socdev */ | |
973 | card->socdev = socdev; | |
974 | ||
975 | /* Bodge while we unpick instantiation */ | |
976 | card->dev = &pdev->dev; | |
977 | ret = snd_soc_register_card(card); | |
978 | if (ret != 0) { | |
979 | dev_err(&pdev->dev, "Failed to register card\n"); | |
980 | return ret; | |
981 | } | |
982 | ||
983 | return 0; | |
db2a4165 FM |
984 | } |
985 | ||
986 | /* removes a socdev */ | |
987 | static int soc_remove(struct platform_device *pdev) | |
988 | { | |
989 | int i; | |
990 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
87506549 | 991 | struct snd_soc_card *card = socdev->card; |
87689d56 | 992 | struct snd_soc_platform *platform = card->platform; |
db2a4165 FM |
993 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
994 | ||
6308419a | 995 | run_delayed_work(&card->delayed_work); |
965ac42c | 996 | |
db2a4165 FM |
997 | if (platform->remove) |
998 | platform->remove(pdev); | |
999 | ||
1000 | if (codec_dev->remove) | |
1001 | codec_dev->remove(pdev); | |
1002 | ||
87506549 MB |
1003 | for (i = 0; i < card->num_links; i++) { |
1004 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 1005 | if (cpu_dai->remove) |
bdb92876 | 1006 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
1007 | } |
1008 | ||
87506549 MB |
1009 | if (card->remove) |
1010 | card->remove(pdev); | |
db2a4165 | 1011 | |
c5af3a2e MB |
1012 | snd_soc_unregister_card(card); |
1013 | ||
db2a4165 FM |
1014 | return 0; |
1015 | } | |
1016 | ||
1017 | /* ASoC platform driver */ | |
1018 | static struct platform_driver soc_driver = { | |
1019 | .driver = { | |
1020 | .name = "soc-audio", | |
8b45a209 | 1021 | .owner = THIS_MODULE, |
db2a4165 FM |
1022 | }, |
1023 | .probe = soc_probe, | |
1024 | .remove = soc_remove, | |
1025 | .suspend = soc_suspend, | |
1026 | .resume = soc_resume, | |
1027 | }; | |
1028 | ||
1029 | /* create a new pcm */ | |
1030 | static int soc_new_pcm(struct snd_soc_device *socdev, | |
1031 | struct snd_soc_dai_link *dai_link, int num) | |
1032 | { | |
87689d56 | 1033 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1034 | struct snd_soc_codec *codec = card->codec; |
87689d56 | 1035 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
1036 | struct snd_soc_dai *codec_dai = dai_link->codec_dai; |
1037 | struct snd_soc_dai *cpu_dai = dai_link->cpu_dai; | |
db2a4165 FM |
1038 | struct snd_soc_pcm_runtime *rtd; |
1039 | struct snd_pcm *pcm; | |
1040 | char new_name[64]; | |
1041 | int ret = 0, playback = 0, capture = 0; | |
1042 | ||
1043 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
1044 | if (rtd == NULL) | |
1045 | return -ENOMEM; | |
cb666e5b LG |
1046 | |
1047 | rtd->dai = dai_link; | |
db2a4165 | 1048 | rtd->socdev = socdev; |
6627a653 | 1049 | codec_dai->codec = card->codec; |
db2a4165 FM |
1050 | |
1051 | /* check client and interface hw capabilities */ | |
3ba9e10a MB |
1052 | sprintf(new_name, "%s %s-%d", dai_link->stream_name, codec_dai->name, |
1053 | num); | |
db2a4165 FM |
1054 | |
1055 | if (codec_dai->playback.channels_min) | |
1056 | playback = 1; | |
1057 | if (codec_dai->capture.channels_min) | |
1058 | capture = 1; | |
1059 | ||
1060 | ret = snd_pcm_new(codec->card, new_name, codec->pcm_devs++, playback, | |
1061 | capture, &pcm); | |
1062 | if (ret < 0) { | |
3ff3f64b MB |
1063 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", |
1064 | codec->name); | |
db2a4165 FM |
1065 | kfree(rtd); |
1066 | return ret; | |
1067 | } | |
1068 | ||
4ccab3e7 | 1069 | dai_link->pcm = pcm; |
db2a4165 | 1070 | pcm->private_data = rtd; |
87689d56 MB |
1071 | soc_pcm_ops.mmap = platform->pcm_ops->mmap; |
1072 | soc_pcm_ops.pointer = platform->pcm_ops->pointer; | |
1073 | soc_pcm_ops.ioctl = platform->pcm_ops->ioctl; | |
1074 | soc_pcm_ops.copy = platform->pcm_ops->copy; | |
1075 | soc_pcm_ops.silence = platform->pcm_ops->silence; | |
1076 | soc_pcm_ops.ack = platform->pcm_ops->ack; | |
1077 | soc_pcm_ops.page = platform->pcm_ops->page; | |
db2a4165 FM |
1078 | |
1079 | if (playback) | |
1080 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1081 | ||
1082 | if (capture) | |
1083 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1084 | ||
87689d56 | 1085 | ret = platform->pcm_new(codec->card, codec_dai, pcm); |
db2a4165 FM |
1086 | if (ret < 0) { |
1087 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
1088 | kfree(rtd); | |
1089 | return ret; | |
1090 | } | |
1091 | ||
87689d56 | 1092 | pcm->private_free = platform->pcm_free; |
db2a4165 FM |
1093 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1094 | cpu_dai->name); | |
1095 | return ret; | |
1096 | } | |
1097 | ||
1098 | /* codec register dump */ | |
6627a653 | 1099 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) |
db2a4165 | 1100 | { |
db2a4165 FM |
1101 | int i, step = 1, count = 0; |
1102 | ||
1103 | if (!codec->reg_cache_size) | |
1104 | return 0; | |
1105 | ||
1106 | if (codec->reg_cache_step) | |
1107 | step = codec->reg_cache_step; | |
1108 | ||
1109 | count += sprintf(buf, "%s registers\n", codec->name); | |
58cd33c0 MB |
1110 | for (i = 0; i < codec->reg_cache_size; i += step) { |
1111 | count += sprintf(buf + count, "%2x: ", i); | |
1112 | if (count >= PAGE_SIZE - 1) | |
1113 | break; | |
1114 | ||
1115 | if (codec->display_register) | |
1116 | count += codec->display_register(codec, buf + count, | |
1117 | PAGE_SIZE - count, i); | |
1118 | else | |
1119 | count += snprintf(buf + count, PAGE_SIZE - count, | |
1120 | "%4x", codec->read(codec, i)); | |
1121 | ||
1122 | if (count >= PAGE_SIZE - 1) | |
1123 | break; | |
1124 | ||
1125 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
1126 | if (count >= PAGE_SIZE - 1) | |
1127 | break; | |
1128 | } | |
1129 | ||
1130 | /* Truncate count; min() would cause a warning */ | |
1131 | if (count >= PAGE_SIZE) | |
1132 | count = PAGE_SIZE - 1; | |
db2a4165 FM |
1133 | |
1134 | return count; | |
1135 | } | |
12ef193d TK |
1136 | static ssize_t codec_reg_show(struct device *dev, |
1137 | struct device_attribute *attr, char *buf) | |
1138 | { | |
1139 | struct snd_soc_device *devdata = dev_get_drvdata(dev); | |
6627a653 | 1140 | return soc_codec_reg_show(devdata->card->codec, buf); |
12ef193d TK |
1141 | } |
1142 | ||
db2a4165 FM |
1143 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); |
1144 | ||
12ef193d TK |
1145 | #ifdef CONFIG_DEBUG_FS |
1146 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
1147 | { | |
1148 | file->private_data = inode->i_private; | |
1149 | return 0; | |
1150 | } | |
1151 | ||
1152 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
1153 | size_t count, loff_t *ppos) | |
1154 | { | |
1155 | ssize_t ret; | |
384c89e2 | 1156 | struct snd_soc_codec *codec = file->private_data; |
12ef193d TK |
1157 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
1158 | if (!buf) | |
1159 | return -ENOMEM; | |
6627a653 | 1160 | ret = soc_codec_reg_show(codec, buf); |
12ef193d TK |
1161 | if (ret >= 0) |
1162 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1163 | kfree(buf); | |
1164 | return ret; | |
1165 | } | |
1166 | ||
1167 | static ssize_t codec_reg_write_file(struct file *file, | |
1168 | const char __user *user_buf, size_t count, loff_t *ppos) | |
1169 | { | |
1170 | char buf[32]; | |
1171 | int buf_size; | |
1172 | char *start = buf; | |
1173 | unsigned long reg, value; | |
1174 | int step = 1; | |
384c89e2 | 1175 | struct snd_soc_codec *codec = file->private_data; |
12ef193d TK |
1176 | |
1177 | buf_size = min(count, (sizeof(buf)-1)); | |
1178 | if (copy_from_user(buf, user_buf, buf_size)) | |
1179 | return -EFAULT; | |
1180 | buf[buf_size] = 0; | |
1181 | ||
1182 | if (codec->reg_cache_step) | |
1183 | step = codec->reg_cache_step; | |
1184 | ||
1185 | while (*start == ' ') | |
1186 | start++; | |
1187 | reg = simple_strtoul(start, &start, 16); | |
1188 | if ((reg >= codec->reg_cache_size) || (reg % step)) | |
1189 | return -EINVAL; | |
1190 | while (*start == ' ') | |
1191 | start++; | |
1192 | if (strict_strtoul(start, 16, &value)) | |
1193 | return -EINVAL; | |
1194 | codec->write(codec, reg, value); | |
1195 | return buf_size; | |
1196 | } | |
1197 | ||
1198 | static const struct file_operations codec_reg_fops = { | |
1199 | .open = codec_reg_open_file, | |
1200 | .read = codec_reg_read_file, | |
1201 | .write = codec_reg_write_file, | |
1202 | }; | |
1203 | ||
384c89e2 | 1204 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d | 1205 | { |
384c89e2 MB |
1206 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
1207 | debugfs_root, codec, | |
1208 | &codec_reg_fops); | |
1209 | if (!codec->debugfs_reg) | |
1210 | printk(KERN_WARNING | |
1211 | "ASoC: Failed to create codec register debugfs file\n"); | |
1212 | ||
1213 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744, | |
1214 | debugfs_root, | |
1215 | &codec->pop_time); | |
1216 | if (!codec->debugfs_pop_time) | |
1217 | printk(KERN_WARNING | |
1218 | "Failed to create pop time debugfs file\n"); | |
12ef193d TK |
1219 | } |
1220 | ||
384c89e2 | 1221 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d | 1222 | { |
384c89e2 MB |
1223 | debugfs_remove(codec->debugfs_pop_time); |
1224 | debugfs_remove(codec->debugfs_reg); | |
12ef193d TK |
1225 | } |
1226 | ||
1227 | #else | |
1228 | ||
384c89e2 | 1229 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d TK |
1230 | { |
1231 | } | |
1232 | ||
384c89e2 | 1233 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d TK |
1234 | { |
1235 | } | |
1236 | #endif | |
1237 | ||
db2a4165 FM |
1238 | /** |
1239 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1240 | * @codec: audio codec | |
1241 | * @ops: AC97 bus operations | |
1242 | * @num: AC97 codec number | |
1243 | * | |
1244 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1245 | */ | |
1246 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1247 | struct snd_ac97_bus_ops *ops, int num) | |
1248 | { | |
1249 | mutex_lock(&codec->mutex); | |
1250 | ||
1251 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1252 | if (codec->ac97 == NULL) { | |
1253 | mutex_unlock(&codec->mutex); | |
1254 | return -ENOMEM; | |
1255 | } | |
1256 | ||
1257 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1258 | if (codec->ac97->bus == NULL) { | |
1259 | kfree(codec->ac97); | |
1260 | codec->ac97 = NULL; | |
1261 | mutex_unlock(&codec->mutex); | |
1262 | return -ENOMEM; | |
1263 | } | |
1264 | ||
1265 | codec->ac97->bus->ops = ops; | |
1266 | codec->ac97->num = num; | |
1267 | mutex_unlock(&codec->mutex); | |
1268 | return 0; | |
1269 | } | |
1270 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1271 | ||
1272 | /** | |
1273 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1274 | * @codec: audio codec | |
1275 | * | |
1276 | * Frees AC97 codec device resources. | |
1277 | */ | |
1278 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1279 | { | |
1280 | mutex_lock(&codec->mutex); | |
1281 | kfree(codec->ac97->bus); | |
1282 | kfree(codec->ac97); | |
1283 | codec->ac97 = NULL; | |
1284 | mutex_unlock(&codec->mutex); | |
1285 | } | |
1286 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1287 | ||
1288 | /** | |
1289 | * snd_soc_update_bits - update codec register bits | |
1290 | * @codec: audio codec | |
1291 | * @reg: codec register | |
1292 | * @mask: register mask | |
1293 | * @value: new value | |
1294 | * | |
1295 | * Writes new register value. | |
1296 | * | |
1297 | * Returns 1 for change else 0. | |
1298 | */ | |
1299 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
1300 | unsigned short mask, unsigned short value) | |
1301 | { | |
1302 | int change; | |
1303 | unsigned short old, new; | |
1304 | ||
1305 | mutex_lock(&io_mutex); | |
1306 | old = snd_soc_read(codec, reg); | |
1307 | new = (old & ~mask) | value; | |
1308 | change = old != new; | |
1309 | if (change) | |
1310 | snd_soc_write(codec, reg, new); | |
1311 | ||
1312 | mutex_unlock(&io_mutex); | |
1313 | return change; | |
1314 | } | |
1315 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1316 | ||
1317 | /** | |
1318 | * snd_soc_test_bits - test register for change | |
1319 | * @codec: audio codec | |
1320 | * @reg: codec register | |
1321 | * @mask: register mask | |
1322 | * @value: new value | |
1323 | * | |
1324 | * Tests a register with a new value and checks if the new value is | |
1325 | * different from the old value. | |
1326 | * | |
1327 | * Returns 1 for change else 0. | |
1328 | */ | |
1329 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
1330 | unsigned short mask, unsigned short value) | |
1331 | { | |
1332 | int change; | |
1333 | unsigned short old, new; | |
1334 | ||
1335 | mutex_lock(&io_mutex); | |
1336 | old = snd_soc_read(codec, reg); | |
1337 | new = (old & ~mask) | value; | |
1338 | change = old != new; | |
1339 | mutex_unlock(&io_mutex); | |
1340 | ||
1341 | return change; | |
1342 | } | |
1343 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1344 | ||
db2a4165 FM |
1345 | /** |
1346 | * snd_soc_new_pcms - create new sound card and pcms | |
1347 | * @socdev: the SoC audio device | |
ac11a2b3 MB |
1348 | * @idx: ALSA card index |
1349 | * @xid: card identification | |
db2a4165 FM |
1350 | * |
1351 | * Create a new sound card based upon the codec and interface pcms. | |
1352 | * | |
1353 | * Returns 0 for success, else error. | |
1354 | */ | |
bc7320c5 | 1355 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid) |
db2a4165 | 1356 | { |
87506549 | 1357 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1358 | struct snd_soc_codec *codec = card->codec; |
bd7dd77c | 1359 | int ret, i; |
db2a4165 FM |
1360 | |
1361 | mutex_lock(&codec->mutex); | |
1362 | ||
1363 | /* register a sound card */ | |
bd7dd77c TI |
1364 | ret = snd_card_create(idx, xid, codec->owner, 0, &codec->card); |
1365 | if (ret < 0) { | |
db2a4165 FM |
1366 | printk(KERN_ERR "asoc: can't create sound card for codec %s\n", |
1367 | codec->name); | |
1368 | mutex_unlock(&codec->mutex); | |
bd7dd77c | 1369 | return ret; |
db2a4165 FM |
1370 | } |
1371 | ||
1372 | codec->card->dev = socdev->dev; | |
1373 | codec->card->private_data = codec; | |
1374 | strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver)); | |
1375 | ||
1376 | /* create the pcms */ | |
87506549 MB |
1377 | for (i = 0; i < card->num_links; i++) { |
1378 | ret = soc_new_pcm(socdev, &card->dai_link[i], i); | |
db2a4165 FM |
1379 | if (ret < 0) { |
1380 | printk(KERN_ERR "asoc: can't create pcm %s\n", | |
87506549 | 1381 | card->dai_link[i].stream_name); |
db2a4165 FM |
1382 | mutex_unlock(&codec->mutex); |
1383 | return ret; | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | mutex_unlock(&codec->mutex); | |
1388 | return ret; | |
1389 | } | |
1390 | EXPORT_SYMBOL_GPL(snd_soc_new_pcms); | |
1391 | ||
1392 | /** | |
968a6025 | 1393 | * snd_soc_init_card - register sound card |
db2a4165 FM |
1394 | * @socdev: the SoC audio device |
1395 | * | |
1396 | * Register a SoC sound card. Also registers an AC97 device if the | |
1397 | * codec is AC97 for ad hoc devices. | |
1398 | * | |
1399 | * Returns 0 for success, else error. | |
1400 | */ | |
968a6025 | 1401 | int snd_soc_init_card(struct snd_soc_device *socdev) |
db2a4165 | 1402 | { |
87506549 | 1403 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1404 | struct snd_soc_codec *codec = card->codec; |
12e74f7d | 1405 | int ret = 0, i, ac97 = 0, err = 0; |
db2a4165 | 1406 | |
87506549 MB |
1407 | for (i = 0; i < card->num_links; i++) { |
1408 | if (card->dai_link[i].init) { | |
1409 | err = card->dai_link[i].init(codec); | |
12e74f7d LG |
1410 | if (err < 0) { |
1411 | printk(KERN_ERR "asoc: failed to init %s\n", | |
87506549 | 1412 | card->dai_link[i].stream_name); |
12e74f7d LG |
1413 | continue; |
1414 | } | |
1415 | } | |
3ba9e10a | 1416 | if (card->dai_link[i].codec_dai->ac97_control) |
db2a4165 FM |
1417 | ac97 = 1; |
1418 | } | |
1419 | snprintf(codec->card->shortname, sizeof(codec->card->shortname), | |
87506549 | 1420 | "%s", card->name); |
db2a4165 | 1421 | snprintf(codec->card->longname, sizeof(codec->card->longname), |
87506549 | 1422 | "%s (%s)", card->name, codec->name); |
db2a4165 FM |
1423 | |
1424 | ret = snd_card_register(codec->card); | |
1425 | if (ret < 0) { | |
3ff3f64b | 1426 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", |
db2a4165 | 1427 | codec->name); |
12e74f7d | 1428 | goto out; |
db2a4165 FM |
1429 | } |
1430 | ||
08c8efe6 | 1431 | mutex_lock(&codec->mutex); |
db2a4165 | 1432 | #ifdef CONFIG_SND_SOC_AC97_BUS |
14fa43f5 MB |
1433 | /* Only instantiate AC97 if not already done by the adaptor |
1434 | * for the generic AC97 subsystem. | |
1435 | */ | |
1436 | if (ac97 && strcmp(codec->name, "AC97") != 0) { | |
12e74f7d LG |
1437 | ret = soc_ac97_dev_register(codec); |
1438 | if (ret < 0) { | |
1439 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
1440 | snd_card_free(codec->card); | |
08c8efe6 | 1441 | mutex_unlock(&codec->mutex); |
12e74f7d LG |
1442 | goto out; |
1443 | } | |
1444 | } | |
db2a4165 FM |
1445 | #endif |
1446 | ||
12e74f7d LG |
1447 | err = snd_soc_dapm_sys_add(socdev->dev); |
1448 | if (err < 0) | |
1449 | printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); | |
1450 | ||
1451 | err = device_create_file(socdev->dev, &dev_attr_codec_reg); | |
1452 | if (err < 0) | |
3ff3f64b | 1453 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); |
08c8efe6 | 1454 | |
6627a653 | 1455 | soc_init_codec_debugfs(codec); |
db2a4165 | 1456 | mutex_unlock(&codec->mutex); |
08c8efe6 MB |
1457 | |
1458 | out: | |
db2a4165 FM |
1459 | return ret; |
1460 | } | |
968a6025 | 1461 | EXPORT_SYMBOL_GPL(snd_soc_init_card); |
db2a4165 FM |
1462 | |
1463 | /** | |
1464 | * snd_soc_free_pcms - free sound card and pcms | |
1465 | * @socdev: the SoC audio device | |
1466 | * | |
1467 | * Frees sound card and pcms associated with the socdev. | |
1468 | * Also unregister the codec if it is an AC97 device. | |
1469 | */ | |
1470 | void snd_soc_free_pcms(struct snd_soc_device *socdev) | |
1471 | { | |
6627a653 | 1472 | struct snd_soc_codec *codec = socdev->card->codec; |
a68660e0 | 1473 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3c4b266f | 1474 | struct snd_soc_dai *codec_dai; |
a68660e0 LG |
1475 | int i; |
1476 | #endif | |
db2a4165 FM |
1477 | |
1478 | mutex_lock(&codec->mutex); | |
6627a653 | 1479 | soc_cleanup_codec_debugfs(codec); |
db2a4165 | 1480 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3ff3f64b | 1481 | for (i = 0; i < codec->num_dai; i++) { |
a68660e0 | 1482 | codec_dai = &codec->dai[i]; |
d2314e0e AN |
1483 | if (codec_dai->ac97_control && codec->ac97 && |
1484 | strcmp(codec->name, "AC97") != 0) { | |
a68660e0 LG |
1485 | soc_ac97_dev_unregister(codec); |
1486 | goto free_card; | |
1487 | } | |
1488 | } | |
1489 | free_card: | |
db2a4165 FM |
1490 | #endif |
1491 | ||
1492 | if (codec->card) | |
1493 | snd_card_free(codec->card); | |
1494 | device_remove_file(socdev->dev, &dev_attr_codec_reg); | |
1495 | mutex_unlock(&codec->mutex); | |
1496 | } | |
1497 | EXPORT_SYMBOL_GPL(snd_soc_free_pcms); | |
1498 | ||
1499 | /** | |
1500 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1501 | * @substream: the pcm substream | |
1502 | * @hw: the hardware parameters | |
1503 | * | |
1504 | * Sets the substream runtime hardware parameters. | |
1505 | */ | |
1506 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1507 | const struct snd_pcm_hardware *hw) | |
1508 | { | |
1509 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1510 | runtime->hw.info = hw->info; | |
1511 | runtime->hw.formats = hw->formats; | |
1512 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1513 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1514 | runtime->hw.periods_min = hw->periods_min; | |
1515 | runtime->hw.periods_max = hw->periods_max; | |
1516 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1517 | runtime->hw.fifo_size = hw->fifo_size; | |
1518 | return 0; | |
1519 | } | |
1520 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1521 | ||
1522 | /** | |
1523 | * snd_soc_cnew - create new control | |
1524 | * @_template: control template | |
1525 | * @data: control private data | |
ac11a2b3 | 1526 | * @long_name: control long name |
db2a4165 FM |
1527 | * |
1528 | * Create a new mixer control from a template control. | |
1529 | * | |
1530 | * Returns 0 for success, else error. | |
1531 | */ | |
1532 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1533 | void *data, char *long_name) | |
1534 | { | |
1535 | struct snd_kcontrol_new template; | |
1536 | ||
1537 | memcpy(&template, _template, sizeof(template)); | |
1538 | if (long_name) | |
1539 | template.name = long_name; | |
db2a4165 FM |
1540 | template.index = 0; |
1541 | ||
1542 | return snd_ctl_new1(&template, data); | |
1543 | } | |
1544 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1545 | ||
3e8e1952 IM |
1546 | /** |
1547 | * snd_soc_add_controls - add an array of controls to a codec. | |
1548 | * Convienience function to add a list of controls. Many codecs were | |
1549 | * duplicating this code. | |
1550 | * | |
1551 | * @codec: codec to add controls to | |
1552 | * @controls: array of controls to add | |
1553 | * @num_controls: number of elements in the array | |
1554 | * | |
1555 | * Return 0 for success, else error. | |
1556 | */ | |
1557 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1558 | const struct snd_kcontrol_new *controls, int num_controls) | |
1559 | { | |
1560 | struct snd_card *card = codec->card; | |
1561 | int err, i; | |
1562 | ||
1563 | for (i = 0; i < num_controls; i++) { | |
1564 | const struct snd_kcontrol_new *control = &controls[i]; | |
1565 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
1566 | if (err < 0) { | |
1567 | dev_err(codec->dev, "%s: Failed to add %s\n", | |
1568 | codec->name, control->name); | |
1569 | return err; | |
1570 | } | |
1571 | } | |
1572 | ||
1573 | return 0; | |
1574 | } | |
1575 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
1576 | ||
db2a4165 FM |
1577 | /** |
1578 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
1579 | * @kcontrol: mixer control | |
1580 | * @uinfo: control element information | |
1581 | * | |
1582 | * Callback to provide information about a double enumerated | |
1583 | * mixer control. | |
1584 | * | |
1585 | * Returns 0 for success. | |
1586 | */ | |
1587 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
1588 | struct snd_ctl_elem_info *uinfo) | |
1589 | { | |
1590 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1591 | ||
1592 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1593 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 1594 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1595 | |
f8ba0b7b JS |
1596 | if (uinfo->value.enumerated.item > e->max - 1) |
1597 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1598 | strcpy(uinfo->value.enumerated.name, |
1599 | e->texts[uinfo->value.enumerated.item]); | |
1600 | return 0; | |
1601 | } | |
1602 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
1603 | ||
1604 | /** | |
1605 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
1606 | * @kcontrol: mixer control | |
ac11a2b3 | 1607 | * @ucontrol: control element information |
db2a4165 FM |
1608 | * |
1609 | * Callback to get the value of a double enumerated mixer. | |
1610 | * | |
1611 | * Returns 0 for success. | |
1612 | */ | |
1613 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
1614 | struct snd_ctl_elem_value *ucontrol) | |
1615 | { | |
1616 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1617 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1618 | unsigned short val, bitmask; | |
1619 | ||
f8ba0b7b | 1620 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
1621 | ; |
1622 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
1623 | ucontrol->value.enumerated.item[0] |
1624 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
1625 | if (e->shift_l != e->shift_r) |
1626 | ucontrol->value.enumerated.item[1] = | |
1627 | (val >> e->shift_r) & (bitmask - 1); | |
1628 | ||
1629 | return 0; | |
1630 | } | |
1631 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
1632 | ||
1633 | /** | |
1634 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
1635 | * @kcontrol: mixer control | |
ac11a2b3 | 1636 | * @ucontrol: control element information |
db2a4165 FM |
1637 | * |
1638 | * Callback to set the value of a double enumerated mixer. | |
1639 | * | |
1640 | * Returns 0 for success. | |
1641 | */ | |
1642 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
1643 | struct snd_ctl_elem_value *ucontrol) | |
1644 | { | |
1645 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1646 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1647 | unsigned short val; | |
1648 | unsigned short mask, bitmask; | |
1649 | ||
f8ba0b7b | 1650 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 1651 | ; |
f8ba0b7b | 1652 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
1653 | return -EINVAL; |
1654 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
1655 | mask = (bitmask - 1) << e->shift_l; | |
1656 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1657 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
1658 | return -EINVAL; |
1659 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1660 | mask |= (bitmask - 1) << e->shift_r; | |
1661 | } | |
1662 | ||
1663 | return snd_soc_update_bits(codec, e->reg, mask, val); | |
1664 | } | |
1665 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
1666 | ||
2e72f8e3 PU |
1667 | /** |
1668 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
1669 | * @kcontrol: mixer control | |
1670 | * @ucontrol: control element information | |
1671 | * | |
1672 | * Callback to get the value of a double semi enumerated mixer. | |
1673 | * | |
1674 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1675 | * used for handling bitfield coded enumeration for example. | |
1676 | * | |
1677 | * Returns 0 for success. | |
1678 | */ | |
1679 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1680 | struct snd_ctl_elem_value *ucontrol) | |
1681 | { | |
1682 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1683 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
2e72f8e3 PU |
1684 | unsigned short reg_val, val, mux; |
1685 | ||
1686 | reg_val = snd_soc_read(codec, e->reg); | |
1687 | val = (reg_val >> e->shift_l) & e->mask; | |
1688 | for (mux = 0; mux < e->max; mux++) { | |
1689 | if (val == e->values[mux]) | |
1690 | break; | |
1691 | } | |
1692 | ucontrol->value.enumerated.item[0] = mux; | |
1693 | if (e->shift_l != e->shift_r) { | |
1694 | val = (reg_val >> e->shift_r) & e->mask; | |
1695 | for (mux = 0; mux < e->max; mux++) { | |
1696 | if (val == e->values[mux]) | |
1697 | break; | |
1698 | } | |
1699 | ucontrol->value.enumerated.item[1] = mux; | |
1700 | } | |
1701 | ||
1702 | return 0; | |
1703 | } | |
1704 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
1705 | ||
1706 | /** | |
1707 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
1708 | * @kcontrol: mixer control | |
1709 | * @ucontrol: control element information | |
1710 | * | |
1711 | * Callback to set the value of a double semi enumerated mixer. | |
1712 | * | |
1713 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1714 | * used for handling bitfield coded enumeration for example. | |
1715 | * | |
1716 | * Returns 0 for success. | |
1717 | */ | |
1718 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1719 | struct snd_ctl_elem_value *ucontrol) | |
1720 | { | |
1721 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1722 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
2e72f8e3 PU |
1723 | unsigned short val; |
1724 | unsigned short mask; | |
1725 | ||
1726 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1727 | return -EINVAL; | |
1728 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1729 | mask = e->mask << e->shift_l; | |
1730 | if (e->shift_l != e->shift_r) { | |
1731 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1732 | return -EINVAL; | |
1733 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1734 | mask |= e->mask << e->shift_r; | |
1735 | } | |
1736 | ||
1737 | return snd_soc_update_bits(codec, e->reg, mask, val); | |
1738 | } | |
1739 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
1740 | ||
db2a4165 FM |
1741 | /** |
1742 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
1743 | * @kcontrol: mixer control | |
1744 | * @uinfo: control element information | |
1745 | * | |
1746 | * Callback to provide information about an external enumerated | |
1747 | * single mixer. | |
1748 | * | |
1749 | * Returns 0 for success. | |
1750 | */ | |
1751 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
1752 | struct snd_ctl_elem_info *uinfo) | |
1753 | { | |
1754 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1755 | ||
1756 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1757 | uinfo->count = 1; | |
f8ba0b7b | 1758 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1759 | |
f8ba0b7b JS |
1760 | if (uinfo->value.enumerated.item > e->max - 1) |
1761 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1762 | strcpy(uinfo->value.enumerated.name, |
1763 | e->texts[uinfo->value.enumerated.item]); | |
1764 | return 0; | |
1765 | } | |
1766 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
1767 | ||
1768 | /** | |
1769 | * snd_soc_info_volsw_ext - external single mixer info callback | |
1770 | * @kcontrol: mixer control | |
1771 | * @uinfo: control element information | |
1772 | * | |
1773 | * Callback to provide information about a single external mixer control. | |
1774 | * | |
1775 | * Returns 0 for success. | |
1776 | */ | |
1777 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
1778 | struct snd_ctl_elem_info *uinfo) | |
1779 | { | |
a7a4ac86 PZ |
1780 | int max = kcontrol->private_value; |
1781 | ||
fd5dfad9 | 1782 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1783 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1784 | else | |
1785 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1786 | |
db2a4165 FM |
1787 | uinfo->count = 1; |
1788 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1789 | uinfo->value.integer.max = max; |
db2a4165 FM |
1790 | return 0; |
1791 | } | |
1792 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
1793 | ||
db2a4165 FM |
1794 | /** |
1795 | * snd_soc_info_volsw - single mixer info callback | |
1796 | * @kcontrol: mixer control | |
1797 | * @uinfo: control element information | |
1798 | * | |
1799 | * Callback to provide information about a single mixer control. | |
1800 | * | |
1801 | * Returns 0 for success. | |
1802 | */ | |
1803 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
1804 | struct snd_ctl_elem_info *uinfo) | |
1805 | { | |
4eaa9819 JS |
1806 | struct soc_mixer_control *mc = |
1807 | (struct soc_mixer_control *)kcontrol->private_value; | |
1808 | int max = mc->max; | |
762b8df7 | 1809 | unsigned int shift = mc->shift; |
815ecf8d | 1810 | unsigned int rshift = mc->rshift; |
db2a4165 | 1811 | |
fd5dfad9 | 1812 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1813 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1814 | else | |
1815 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1816 | ||
db2a4165 FM |
1817 | uinfo->count = shift == rshift ? 1 : 2; |
1818 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1819 | uinfo->value.integer.max = max; |
db2a4165 FM |
1820 | return 0; |
1821 | } | |
1822 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
1823 | ||
1824 | /** | |
1825 | * snd_soc_get_volsw - single mixer get callback | |
1826 | * @kcontrol: mixer control | |
ac11a2b3 | 1827 | * @ucontrol: control element information |
db2a4165 FM |
1828 | * |
1829 | * Callback to get the value of a single mixer control. | |
1830 | * | |
1831 | * Returns 0 for success. | |
1832 | */ | |
1833 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
1834 | struct snd_ctl_elem_value *ucontrol) | |
1835 | { | |
4eaa9819 JS |
1836 | struct soc_mixer_control *mc = |
1837 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1838 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1839 | unsigned int reg = mc->reg; |
1840 | unsigned int shift = mc->shift; | |
1841 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1842 | int max = mc->max; |
815ecf8d JS |
1843 | unsigned int mask = (1 << fls(max)) - 1; |
1844 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1845 | |
1846 | ucontrol->value.integer.value[0] = | |
1847 | (snd_soc_read(codec, reg) >> shift) & mask; | |
1848 | if (shift != rshift) | |
1849 | ucontrol->value.integer.value[1] = | |
1850 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
1851 | if (invert) { | |
1852 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1853 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
1854 | if (shift != rshift) |
1855 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1856 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
1857 | } |
1858 | ||
1859 | return 0; | |
1860 | } | |
1861 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
1862 | ||
1863 | /** | |
1864 | * snd_soc_put_volsw - single mixer put callback | |
1865 | * @kcontrol: mixer control | |
ac11a2b3 | 1866 | * @ucontrol: control element information |
db2a4165 FM |
1867 | * |
1868 | * Callback to set the value of a single mixer control. | |
1869 | * | |
1870 | * Returns 0 for success. | |
1871 | */ | |
1872 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
1873 | struct snd_ctl_elem_value *ucontrol) | |
1874 | { | |
4eaa9819 JS |
1875 | struct soc_mixer_control *mc = |
1876 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1877 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1878 | unsigned int reg = mc->reg; |
1879 | unsigned int shift = mc->shift; | |
1880 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1881 | int max = mc->max; |
815ecf8d JS |
1882 | unsigned int mask = (1 << fls(max)) - 1; |
1883 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1884 | unsigned short val, val2, val_mask; |
1885 | ||
1886 | val = (ucontrol->value.integer.value[0] & mask); | |
1887 | if (invert) | |
a7a4ac86 | 1888 | val = max - val; |
db2a4165 FM |
1889 | val_mask = mask << shift; |
1890 | val = val << shift; | |
1891 | if (shift != rshift) { | |
1892 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1893 | if (invert) | |
a7a4ac86 | 1894 | val2 = max - val2; |
db2a4165 FM |
1895 | val_mask |= mask << rshift; |
1896 | val |= val2 << rshift; | |
1897 | } | |
a7a4ac86 | 1898 | return snd_soc_update_bits(codec, reg, val_mask, val); |
db2a4165 FM |
1899 | } |
1900 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
1901 | ||
1902 | /** | |
1903 | * snd_soc_info_volsw_2r - double mixer info callback | |
1904 | * @kcontrol: mixer control | |
1905 | * @uinfo: control element information | |
1906 | * | |
1907 | * Callback to provide information about a double mixer control that | |
1908 | * spans 2 codec registers. | |
1909 | * | |
1910 | * Returns 0 for success. | |
1911 | */ | |
1912 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
1913 | struct snd_ctl_elem_info *uinfo) | |
1914 | { | |
4eaa9819 JS |
1915 | struct soc_mixer_control *mc = |
1916 | (struct soc_mixer_control *)kcontrol->private_value; | |
1917 | int max = mc->max; | |
a7a4ac86 | 1918 | |
fd5dfad9 | 1919 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1920 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1921 | else | |
1922 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1923 | |
db2a4165 FM |
1924 | uinfo->count = 2; |
1925 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1926 | uinfo->value.integer.max = max; |
db2a4165 FM |
1927 | return 0; |
1928 | } | |
1929 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
1930 | ||
1931 | /** | |
1932 | * snd_soc_get_volsw_2r - double mixer get callback | |
1933 | * @kcontrol: mixer control | |
ac11a2b3 | 1934 | * @ucontrol: control element information |
db2a4165 FM |
1935 | * |
1936 | * Callback to get the value of a double mixer control that spans 2 registers. | |
1937 | * | |
1938 | * Returns 0 for success. | |
1939 | */ | |
1940 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
1941 | struct snd_ctl_elem_value *ucontrol) | |
1942 | { | |
4eaa9819 JS |
1943 | struct soc_mixer_control *mc = |
1944 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1945 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1946 | unsigned int reg = mc->reg; |
1947 | unsigned int reg2 = mc->rreg; | |
1948 | unsigned int shift = mc->shift; | |
4eaa9819 | 1949 | int max = mc->max; |
815ecf8d JS |
1950 | unsigned int mask = (1<<fls(max))-1; |
1951 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1952 | |
1953 | ucontrol->value.integer.value[0] = | |
1954 | (snd_soc_read(codec, reg) >> shift) & mask; | |
1955 | ucontrol->value.integer.value[1] = | |
1956 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
1957 | if (invert) { | |
1958 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1959 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 1960 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 1961 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
1962 | } |
1963 | ||
1964 | return 0; | |
1965 | } | |
1966 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
1967 | ||
1968 | /** | |
1969 | * snd_soc_put_volsw_2r - double mixer set callback | |
1970 | * @kcontrol: mixer control | |
ac11a2b3 | 1971 | * @ucontrol: control element information |
db2a4165 FM |
1972 | * |
1973 | * Callback to set the value of a double mixer control that spans 2 registers. | |
1974 | * | |
1975 | * Returns 0 for success. | |
1976 | */ | |
1977 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
1978 | struct snd_ctl_elem_value *ucontrol) | |
1979 | { | |
4eaa9819 JS |
1980 | struct soc_mixer_control *mc = |
1981 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1982 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1983 | unsigned int reg = mc->reg; |
1984 | unsigned int reg2 = mc->rreg; | |
1985 | unsigned int shift = mc->shift; | |
4eaa9819 | 1986 | int max = mc->max; |
815ecf8d JS |
1987 | unsigned int mask = (1 << fls(max)) - 1; |
1988 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1989 | int err; |
1990 | unsigned short val, val2, val_mask; | |
1991 | ||
1992 | val_mask = mask << shift; | |
1993 | val = (ucontrol->value.integer.value[0] & mask); | |
1994 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1995 | ||
1996 | if (invert) { | |
a7a4ac86 PZ |
1997 | val = max - val; |
1998 | val2 = max - val2; | |
db2a4165 FM |
1999 | } |
2000 | ||
2001 | val = val << shift; | |
2002 | val2 = val2 << shift; | |
2003 | ||
3ff3f64b MB |
2004 | err = snd_soc_update_bits(codec, reg, val_mask, val); |
2005 | if (err < 0) | |
db2a4165 FM |
2006 | return err; |
2007 | ||
2008 | err = snd_soc_update_bits(codec, reg2, val_mask, val2); | |
2009 | return err; | |
2010 | } | |
2011 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2012 | ||
e13ac2e9 MB |
2013 | /** |
2014 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2015 | * @kcontrol: mixer control | |
2016 | * @uinfo: control element information | |
2017 | * | |
2018 | * Callback to provide information about a signed mixer control. | |
2019 | * | |
2020 | * Returns 0 for success. | |
2021 | */ | |
2022 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2023 | struct snd_ctl_elem_info *uinfo) | |
2024 | { | |
4eaa9819 JS |
2025 | struct soc_mixer_control *mc = |
2026 | (struct soc_mixer_control *)kcontrol->private_value; | |
2027 | int max = mc->max; | |
2028 | int min = mc->min; | |
e13ac2e9 MB |
2029 | |
2030 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2031 | uinfo->count = 2; | |
2032 | uinfo->value.integer.min = 0; | |
2033 | uinfo->value.integer.max = max-min; | |
2034 | return 0; | |
2035 | } | |
2036 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2037 | ||
2038 | /** | |
2039 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2040 | * @kcontrol: mixer control | |
ac11a2b3 | 2041 | * @ucontrol: control element information |
e13ac2e9 MB |
2042 | * |
2043 | * Callback to get the value of a signed mixer control. | |
2044 | * | |
2045 | * Returns 0 for success. | |
2046 | */ | |
2047 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2048 | struct snd_ctl_elem_value *ucontrol) | |
2049 | { | |
4eaa9819 JS |
2050 | struct soc_mixer_control *mc = |
2051 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2052 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2053 | unsigned int reg = mc->reg; |
4eaa9819 | 2054 | int min = mc->min; |
e13ac2e9 MB |
2055 | int val = snd_soc_read(codec, reg); |
2056 | ||
2057 | ucontrol->value.integer.value[0] = | |
2058 | ((signed char)(val & 0xff))-min; | |
2059 | ucontrol->value.integer.value[1] = | |
2060 | ((signed char)((val >> 8) & 0xff))-min; | |
2061 | return 0; | |
2062 | } | |
2063 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2064 | ||
2065 | /** | |
2066 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2067 | * @kcontrol: mixer control | |
ac11a2b3 | 2068 | * @ucontrol: control element information |
e13ac2e9 MB |
2069 | * |
2070 | * Callback to set the value of a signed mixer control. | |
2071 | * | |
2072 | * Returns 0 for success. | |
2073 | */ | |
2074 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2075 | struct snd_ctl_elem_value *ucontrol) | |
2076 | { | |
4eaa9819 JS |
2077 | struct soc_mixer_control *mc = |
2078 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2079 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2080 | unsigned int reg = mc->reg; |
4eaa9819 | 2081 | int min = mc->min; |
e13ac2e9 MB |
2082 | unsigned short val; |
2083 | ||
2084 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2085 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2086 | ||
2087 | return snd_soc_update_bits(codec, reg, 0xffff, val); | |
2088 | } | |
2089 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2090 | ||
8c6529db LG |
2091 | /** |
2092 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2093 | * @dai: DAI | |
2094 | * @clk_id: DAI specific clock ID | |
2095 | * @freq: new clock frequency in Hz | |
2096 | * @dir: new clock direction - input/output. | |
2097 | * | |
2098 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2099 | */ | |
2100 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2101 | unsigned int freq, int dir) | |
2102 | { | |
3f1a4d82 | 2103 | if (dai->ops && dai->ops->set_sysclk) |
6335d055 | 2104 | return dai->ops->set_sysclk(dai, clk_id, freq, dir); |
8c6529db LG |
2105 | else |
2106 | return -EINVAL; | |
2107 | } | |
2108 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2109 | ||
2110 | /** | |
2111 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2112 | * @dai: DAI | |
ac11a2b3 | 2113 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2114 | * @div: new clock divisor. |
2115 | * | |
2116 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2117 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2118 | * and frame clocks as low as possible to save system power. | |
2119 | */ | |
2120 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2121 | int div_id, int div) | |
2122 | { | |
3f1a4d82 | 2123 | if (dai->ops && dai->ops->set_clkdiv) |
6335d055 | 2124 | return dai->ops->set_clkdiv(dai, div_id, div); |
8c6529db LG |
2125 | else |
2126 | return -EINVAL; | |
2127 | } | |
2128 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2129 | ||
2130 | /** | |
2131 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2132 | * @dai: DAI | |
2133 | * @pll_id: DAI specific PLL ID | |
2134 | * @freq_in: PLL input clock frequency in Hz | |
2135 | * @freq_out: requested PLL output clock frequency in Hz | |
2136 | * | |
2137 | * Configures and enables PLL to generate output clock based on input clock. | |
2138 | */ | |
2139 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, | |
2140 | int pll_id, unsigned int freq_in, unsigned int freq_out) | |
2141 | { | |
3f1a4d82 | 2142 | if (dai->ops && dai->ops->set_pll) |
6335d055 | 2143 | return dai->ops->set_pll(dai, pll_id, freq_in, freq_out); |
8c6529db LG |
2144 | else |
2145 | return -EINVAL; | |
2146 | } | |
2147 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2148 | ||
2149 | /** | |
2150 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2151 | * @dai: DAI | |
8c6529db LG |
2152 | * @fmt: SND_SOC_DAIFMT_ format value. |
2153 | * | |
2154 | * Configures the DAI hardware format and clocking. | |
2155 | */ | |
2156 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2157 | { | |
3f1a4d82 | 2158 | if (dai->ops && dai->ops->set_fmt) |
6335d055 | 2159 | return dai->ops->set_fmt(dai, fmt); |
8c6529db LG |
2160 | else |
2161 | return -EINVAL; | |
2162 | } | |
2163 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2164 | ||
2165 | /** | |
2166 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2167 | * @dai: DAI | |
2168 | * @mask: DAI specific mask representing used slots. | |
2169 | * @slots: Number of slots in use. | |
2170 | * | |
2171 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2172 | * specific. | |
2173 | */ | |
2174 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
2175 | unsigned int mask, int slots) | |
2176 | { | |
3f1a4d82 | 2177 | if (dai->ops && dai->ops->set_tdm_slot) |
6335d055 | 2178 | return dai->ops->set_tdm_slot(dai, mask, slots); |
8c6529db LG |
2179 | else |
2180 | return -EINVAL; | |
2181 | } | |
2182 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2183 | ||
2184 | /** | |
2185 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2186 | * @dai: DAI | |
2187 | * @tristate: tristate enable | |
2188 | * | |
2189 | * Tristates the DAI so that others can use it. | |
2190 | */ | |
2191 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2192 | { | |
3f1a4d82 | 2193 | if (dai->ops && dai->ops->set_tristate) |
6335d055 | 2194 | return dai->ops->set_tristate(dai, tristate); |
8c6529db LG |
2195 | else |
2196 | return -EINVAL; | |
2197 | } | |
2198 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2199 | ||
2200 | /** | |
2201 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2202 | * @dai: DAI | |
2203 | * @mute: mute enable | |
2204 | * | |
2205 | * Mutes the DAI DAC. | |
2206 | */ | |
2207 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2208 | { | |
3f1a4d82 | 2209 | if (dai->ops && dai->ops->digital_mute) |
6335d055 | 2210 | return dai->ops->digital_mute(dai, mute); |
8c6529db LG |
2211 | else |
2212 | return -EINVAL; | |
2213 | } | |
2214 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2215 | ||
c5af3a2e MB |
2216 | /** |
2217 | * snd_soc_register_card - Register a card with the ASoC core | |
2218 | * | |
ac11a2b3 | 2219 | * @card: Card to register |
c5af3a2e MB |
2220 | * |
2221 | * Note that currently this is an internal only function: it will be | |
2222 | * exposed to machine drivers after further backporting of ASoC v2 | |
2223 | * registration APIs. | |
2224 | */ | |
2225 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2226 | { | |
2227 | if (!card->name || !card->dev) | |
2228 | return -EINVAL; | |
2229 | ||
2230 | INIT_LIST_HEAD(&card->list); | |
2231 | card->instantiated = 0; | |
2232 | ||
2233 | mutex_lock(&client_mutex); | |
2234 | list_add(&card->list, &card_list); | |
435c5e25 | 2235 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2236 | mutex_unlock(&client_mutex); |
2237 | ||
2238 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2239 | ||
2240 | return 0; | |
2241 | } | |
2242 | ||
2243 | /** | |
2244 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2245 | * | |
ac11a2b3 | 2246 | * @card: Card to unregister |
c5af3a2e MB |
2247 | * |
2248 | * Note that currently this is an internal only function: it will be | |
2249 | * exposed to machine drivers after further backporting of ASoC v2 | |
2250 | * registration APIs. | |
2251 | */ | |
2252 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2253 | { | |
2254 | mutex_lock(&client_mutex); | |
2255 | list_del(&card->list); | |
2256 | mutex_unlock(&client_mutex); | |
2257 | ||
2258 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); | |
2259 | ||
2260 | return 0; | |
2261 | } | |
2262 | ||
6335d055 EM |
2263 | static struct snd_soc_dai_ops null_dai_ops = { |
2264 | }; | |
2265 | ||
9115171a MB |
2266 | /** |
2267 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2268 | * | |
ac11a2b3 | 2269 | * @dai: DAI to register |
9115171a MB |
2270 | */ |
2271 | int snd_soc_register_dai(struct snd_soc_dai *dai) | |
2272 | { | |
2273 | if (!dai->name) | |
2274 | return -EINVAL; | |
2275 | ||
2276 | /* The device should become mandatory over time */ | |
2277 | if (!dai->dev) | |
2278 | printk(KERN_WARNING "No device for DAI %s\n", dai->name); | |
2279 | ||
6335d055 EM |
2280 | if (!dai->ops) |
2281 | dai->ops = &null_dai_ops; | |
2282 | ||
9115171a MB |
2283 | INIT_LIST_HEAD(&dai->list); |
2284 | ||
2285 | mutex_lock(&client_mutex); | |
2286 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2287 | snd_soc_instantiate_cards(); |
9115171a MB |
2288 | mutex_unlock(&client_mutex); |
2289 | ||
2290 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2291 | ||
2292 | return 0; | |
2293 | } | |
2294 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2295 | ||
2296 | /** | |
2297 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2298 | * | |
ac11a2b3 | 2299 | * @dai: DAI to unregister |
9115171a MB |
2300 | */ |
2301 | void snd_soc_unregister_dai(struct snd_soc_dai *dai) | |
2302 | { | |
2303 | mutex_lock(&client_mutex); | |
2304 | list_del(&dai->list); | |
2305 | mutex_unlock(&client_mutex); | |
2306 | ||
2307 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
2308 | } | |
2309 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
2310 | ||
2311 | /** | |
2312 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
2313 | * | |
ac11a2b3 MB |
2314 | * @dai: Array of DAIs to register |
2315 | * @count: Number of DAIs | |
9115171a MB |
2316 | */ |
2317 | int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count) | |
2318 | { | |
2319 | int i, ret; | |
2320 | ||
2321 | for (i = 0; i < count; i++) { | |
2322 | ret = snd_soc_register_dai(&dai[i]); | |
2323 | if (ret != 0) | |
2324 | goto err; | |
2325 | } | |
2326 | ||
2327 | return 0; | |
2328 | ||
2329 | err: | |
2330 | for (i--; i >= 0; i--) | |
2331 | snd_soc_unregister_dai(&dai[i]); | |
2332 | ||
2333 | return ret; | |
2334 | } | |
2335 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
2336 | ||
2337 | /** | |
2338 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
2339 | * | |
ac11a2b3 MB |
2340 | * @dai: Array of DAIs to unregister |
2341 | * @count: Number of DAIs | |
9115171a MB |
2342 | */ |
2343 | void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count) | |
2344 | { | |
2345 | int i; | |
2346 | ||
2347 | for (i = 0; i < count; i++) | |
2348 | snd_soc_unregister_dai(&dai[i]); | |
2349 | } | |
2350 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
2351 | ||
12a48a8c MB |
2352 | /** |
2353 | * snd_soc_register_platform - Register a platform with the ASoC core | |
2354 | * | |
ac11a2b3 | 2355 | * @platform: platform to register |
12a48a8c MB |
2356 | */ |
2357 | int snd_soc_register_platform(struct snd_soc_platform *platform) | |
2358 | { | |
2359 | if (!platform->name) | |
2360 | return -EINVAL; | |
2361 | ||
2362 | INIT_LIST_HEAD(&platform->list); | |
2363 | ||
2364 | mutex_lock(&client_mutex); | |
2365 | list_add(&platform->list, &platform_list); | |
435c5e25 | 2366 | snd_soc_instantiate_cards(); |
12a48a8c MB |
2367 | mutex_unlock(&client_mutex); |
2368 | ||
2369 | pr_debug("Registered platform '%s'\n", platform->name); | |
2370 | ||
2371 | return 0; | |
2372 | } | |
2373 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2374 | ||
2375 | /** | |
2376 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2377 | * | |
ac11a2b3 | 2378 | * @platform: platform to unregister |
12a48a8c MB |
2379 | */ |
2380 | void snd_soc_unregister_platform(struct snd_soc_platform *platform) | |
2381 | { | |
2382 | mutex_lock(&client_mutex); | |
2383 | list_del(&platform->list); | |
2384 | mutex_unlock(&client_mutex); | |
2385 | ||
2386 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
2387 | } | |
2388 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2389 | ||
0d0cf00a MB |
2390 | /** |
2391 | * snd_soc_register_codec - Register a codec with the ASoC core | |
2392 | * | |
ac11a2b3 | 2393 | * @codec: codec to register |
0d0cf00a MB |
2394 | */ |
2395 | int snd_soc_register_codec(struct snd_soc_codec *codec) | |
2396 | { | |
2397 | if (!codec->name) | |
2398 | return -EINVAL; | |
2399 | ||
2400 | /* The device should become mandatory over time */ | |
2401 | if (!codec->dev) | |
2402 | printk(KERN_WARNING "No device for codec %s\n", codec->name); | |
2403 | ||
2404 | INIT_LIST_HEAD(&codec->list); | |
2405 | ||
2406 | mutex_lock(&client_mutex); | |
2407 | list_add(&codec->list, &codec_list); | |
2408 | snd_soc_instantiate_cards(); | |
2409 | mutex_unlock(&client_mutex); | |
2410 | ||
2411 | pr_debug("Registered codec '%s'\n", codec->name); | |
2412 | ||
2413 | return 0; | |
2414 | } | |
2415 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
2416 | ||
2417 | /** | |
2418 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
2419 | * | |
ac11a2b3 | 2420 | * @codec: codec to unregister |
0d0cf00a MB |
2421 | */ |
2422 | void snd_soc_unregister_codec(struct snd_soc_codec *codec) | |
2423 | { | |
2424 | mutex_lock(&client_mutex); | |
2425 | list_del(&codec->list); | |
2426 | mutex_unlock(&client_mutex); | |
2427 | ||
2428 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
2429 | } | |
2430 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
2431 | ||
c9b3a40f | 2432 | static int __init snd_soc_init(void) |
db2a4165 | 2433 | { |
384c89e2 MB |
2434 | #ifdef CONFIG_DEBUG_FS |
2435 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
2436 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
2437 | printk(KERN_WARNING | |
2438 | "ASoC: Failed to create debugfs directory\n"); | |
2439 | debugfs_root = NULL; | |
2440 | } | |
2441 | #endif | |
2442 | ||
db2a4165 FM |
2443 | return platform_driver_register(&soc_driver); |
2444 | } | |
2445 | ||
7d8c16a6 | 2446 | static void __exit snd_soc_exit(void) |
db2a4165 | 2447 | { |
384c89e2 MB |
2448 | #ifdef CONFIG_DEBUG_FS |
2449 | debugfs_remove_recursive(debugfs_root); | |
2450 | #endif | |
3ff3f64b | 2451 | platform_driver_unregister(&soc_driver); |
db2a4165 FM |
2452 | } |
2453 | ||
2454 | module_init(snd_soc_init); | |
2455 | module_exit(snd_soc_exit); | |
2456 | ||
2457 | /* Module information */ | |
d331124d | 2458 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
2459 | MODULE_DESCRIPTION("ALSA SoC Core"); |
2460 | MODULE_LICENSE("GPL"); | |
8b45a209 | 2461 | MODULE_ALIAS("platform:soc-audio"); |