Commit | Line | Data |
---|---|---|
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> |
474828a4 | 31 | #include <sound/ac97_codec.h> |
db2a4165 FM |
32 | #include <sound/core.h> |
33 | #include <sound/pcm.h> | |
34 | #include <sound/pcm_params.h> | |
35 | #include <sound/soc.h> | |
36 | #include <sound/soc-dapm.h> | |
37 | #include <sound/initval.h> | |
38 | ||
db2a4165 FM |
39 | static DEFINE_MUTEX(pcm_mutex); |
40 | static DEFINE_MUTEX(io_mutex); | |
db2a4165 FM |
41 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
42 | ||
384c89e2 MB |
43 | #ifdef CONFIG_DEBUG_FS |
44 | static struct dentry *debugfs_root; | |
45 | #endif | |
46 | ||
c5af3a2e MB |
47 | static DEFINE_MUTEX(client_mutex); |
48 | static LIST_HEAD(card_list); | |
9115171a | 49 | static LIST_HEAD(dai_list); |
12a48a8c | 50 | static LIST_HEAD(platform_list); |
0d0cf00a | 51 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
52 | |
53 | static int snd_soc_register_card(struct snd_soc_card *card); | |
54 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
55 | ||
db2a4165 FM |
56 | /* |
57 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
58 | * It can be used to eliminate pops between different playback streams, e.g. | |
59 | * between two audio tracks. | |
60 | */ | |
61 | static int pmdown_time = 5000; | |
62 | module_param(pmdown_time, int, 0); | |
63 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
64 | ||
965ac42c LG |
65 | /* |
66 | * This function forces any delayed work to be queued and run. | |
67 | */ | |
68 | static int run_delayed_work(struct delayed_work *dwork) | |
69 | { | |
70 | int ret; | |
71 | ||
72 | /* cancel any work waiting to be queued. */ | |
73 | ret = cancel_delayed_work(dwork); | |
74 | ||
75 | /* if there was any work waiting then we run it now and | |
76 | * wait for it's completion */ | |
77 | if (ret) { | |
78 | schedule_delayed_work(dwork, 0); | |
79 | flush_scheduled_work(); | |
80 | } | |
81 | return ret; | |
82 | } | |
83 | ||
db2a4165 FM |
84 | #ifdef CONFIG_SND_SOC_AC97_BUS |
85 | /* unregister ac97 codec */ | |
86 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
87 | { | |
88 | if (codec->ac97->dev.bus) | |
89 | device_unregister(&codec->ac97->dev); | |
90 | return 0; | |
91 | } | |
92 | ||
93 | /* stop no dev release warning */ | |
94 | static void soc_ac97_device_release(struct device *dev){} | |
95 | ||
96 | /* register ac97 codec to bus */ | |
97 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
98 | { | |
99 | int err; | |
100 | ||
101 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 102 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
103 | codec->ac97->dev.release = soc_ac97_device_release; |
104 | ||
bb072bf0 KS |
105 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
106 | codec->card->number, 0, codec->name); | |
db2a4165 FM |
107 | err = device_register(&codec->ac97->dev); |
108 | if (err < 0) { | |
109 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
110 | codec->ac97->dev.bus = NULL; | |
111 | return err; | |
112 | } | |
113 | return 0; | |
114 | } | |
115 | #endif | |
116 | ||
06f409d7 MB |
117 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
118 | { | |
119 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
120 | struct snd_soc_device *socdev = rtd->socdev; | |
121 | struct snd_soc_card *card = socdev->card; | |
122 | struct snd_soc_dai_link *machine = rtd->dai; | |
123 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; | |
124 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
125 | int ret; | |
126 | ||
127 | if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates || | |
128 | machine->symmetric_rates) { | |
129 | dev_dbg(card->dev, "Symmetry forces %dHz rate\n", | |
130 | machine->rate); | |
131 | ||
132 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
133 | SNDRV_PCM_HW_PARAM_RATE, | |
134 | machine->rate, | |
135 | machine->rate); | |
136 | if (ret < 0) { | |
137 | dev_err(card->dev, | |
138 | "Unable to apply rate symmetry constraint: %d\n", ret); | |
139 | return ret; | |
140 | } | |
141 | } | |
142 | ||
143 | return 0; | |
144 | } | |
145 | ||
db2a4165 FM |
146 | /* |
147 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
148 | * then initialized and any private data can be allocated. This also calls | |
149 | * startup for the cpu DAI, platform, machine and codec DAI. | |
150 | */ | |
151 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
152 | { | |
153 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
154 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 155 | struct snd_soc_card *card = socdev->card; |
db2a4165 | 156 | struct snd_pcm_runtime *runtime = substream->runtime; |
cb666e5b | 157 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 158 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
159 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
160 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
161 | int ret = 0; |
162 | ||
163 | mutex_lock(&pcm_mutex); | |
164 | ||
165 | /* startup the audio subsystem */ | |
6335d055 EM |
166 | if (cpu_dai->ops->startup) { |
167 | ret = cpu_dai->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
168 | if (ret < 0) { |
169 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 170 | cpu_dai->name); |
db2a4165 FM |
171 | goto out; |
172 | } | |
173 | } | |
174 | ||
175 | if (platform->pcm_ops->open) { | |
176 | ret = platform->pcm_ops->open(substream); | |
177 | if (ret < 0) { | |
178 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
179 | goto platform_err; | |
180 | } | |
181 | } | |
182 | ||
6335d055 EM |
183 | if (codec_dai->ops->startup) { |
184 | ret = codec_dai->ops->startup(substream, codec_dai); | |
db2a4165 | 185 | if (ret < 0) { |
cb666e5b LG |
186 | printk(KERN_ERR "asoc: can't open codec %s\n", |
187 | codec_dai->name); | |
188 | goto codec_dai_err; | |
db2a4165 FM |
189 | } |
190 | } | |
191 | ||
cb666e5b LG |
192 | if (machine->ops && machine->ops->startup) { |
193 | ret = machine->ops->startup(substream); | |
db2a4165 | 194 | if (ret < 0) { |
cb666e5b LG |
195 | printk(KERN_ERR "asoc: %s startup failed\n", machine->name); |
196 | goto machine_err; | |
db2a4165 FM |
197 | } |
198 | } | |
199 | ||
db2a4165 FM |
200 | /* Check that the codec and cpu DAI's are compatible */ |
201 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
202 | runtime->hw.rate_min = | |
3ff3f64b MB |
203 | max(codec_dai->playback.rate_min, |
204 | cpu_dai->playback.rate_min); | |
db2a4165 | 205 | runtime->hw.rate_max = |
3ff3f64b MB |
206 | min(codec_dai->playback.rate_max, |
207 | cpu_dai->playback.rate_max); | |
db2a4165 | 208 | runtime->hw.channels_min = |
cb666e5b LG |
209 | max(codec_dai->playback.channels_min, |
210 | cpu_dai->playback.channels_min); | |
db2a4165 | 211 | runtime->hw.channels_max = |
cb666e5b LG |
212 | min(codec_dai->playback.channels_max, |
213 | cpu_dai->playback.channels_max); | |
214 | runtime->hw.formats = | |
215 | codec_dai->playback.formats & cpu_dai->playback.formats; | |
216 | runtime->hw.rates = | |
217 | codec_dai->playback.rates & cpu_dai->playback.rates; | |
db2a4165 FM |
218 | } else { |
219 | runtime->hw.rate_min = | |
3ff3f64b MB |
220 | max(codec_dai->capture.rate_min, |
221 | cpu_dai->capture.rate_min); | |
db2a4165 | 222 | runtime->hw.rate_max = |
3ff3f64b MB |
223 | min(codec_dai->capture.rate_max, |
224 | cpu_dai->capture.rate_max); | |
db2a4165 | 225 | runtime->hw.channels_min = |
cb666e5b LG |
226 | max(codec_dai->capture.channels_min, |
227 | cpu_dai->capture.channels_min); | |
db2a4165 | 228 | runtime->hw.channels_max = |
cb666e5b LG |
229 | min(codec_dai->capture.channels_max, |
230 | cpu_dai->capture.channels_max); | |
231 | runtime->hw.formats = | |
232 | codec_dai->capture.formats & cpu_dai->capture.formats; | |
233 | runtime->hw.rates = | |
234 | codec_dai->capture.rates & cpu_dai->capture.rates; | |
db2a4165 FM |
235 | } |
236 | ||
237 | snd_pcm_limit_hw_rates(runtime); | |
238 | if (!runtime->hw.rates) { | |
239 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b LG |
240 | codec_dai->name, cpu_dai->name); |
241 | goto machine_err; | |
db2a4165 FM |
242 | } |
243 | if (!runtime->hw.formats) { | |
244 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b LG |
245 | codec_dai->name, cpu_dai->name); |
246 | goto machine_err; | |
db2a4165 FM |
247 | } |
248 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
249 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
cb666e5b LG |
250 | codec_dai->name, cpu_dai->name); |
251 | goto machine_err; | |
db2a4165 FM |
252 | } |
253 | ||
06f409d7 MB |
254 | /* Symmetry only applies if we've already got an active stream. */ |
255 | if (cpu_dai->active || codec_dai->active) { | |
256 | ret = soc_pcm_apply_symmetry(substream); | |
257 | if (ret != 0) | |
258 | goto machine_err; | |
259 | } | |
260 | ||
f24368c2 MB |
261 | pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); |
262 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); | |
263 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
264 | runtime->hw.channels_max); | |
265 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
266 | runtime->hw.rate_max); | |
db2a4165 | 267 | |
db2a4165 | 268 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
cb666e5b | 269 | cpu_dai->playback.active = codec_dai->playback.active = 1; |
db2a4165 | 270 | else |
cb666e5b LG |
271 | cpu_dai->capture.active = codec_dai->capture.active = 1; |
272 | cpu_dai->active = codec_dai->active = 1; | |
273 | cpu_dai->runtime = runtime; | |
6627a653 | 274 | card->codec->active++; |
db2a4165 FM |
275 | mutex_unlock(&pcm_mutex); |
276 | return 0; | |
277 | ||
cb666e5b | 278 | machine_err: |
db2a4165 FM |
279 | if (machine->ops && machine->ops->shutdown) |
280 | machine->ops->shutdown(substream); | |
281 | ||
cb666e5b | 282 | codec_dai_err: |
db2a4165 FM |
283 | if (platform->pcm_ops->close) |
284 | platform->pcm_ops->close(substream); | |
285 | ||
286 | platform_err: | |
6335d055 EM |
287 | if (cpu_dai->ops->shutdown) |
288 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
289 | out: |
290 | mutex_unlock(&pcm_mutex); | |
291 | return ret; | |
292 | } | |
293 | ||
294 | /* | |
3a4fa0a2 | 295 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
296 | * This is to ensure there are no pops or clicks in between any music tracks |
297 | * due to DAPM power cycling. | |
298 | */ | |
4484bb2e | 299 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 300 | { |
6308419a MB |
301 | struct snd_soc_card *card = container_of(work, struct snd_soc_card, |
302 | delayed_work.work); | |
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) { | |
db2a4165 | 318 | codec_dai->pop_wait = 0; |
0b4d221b LG |
319 | snd_soc_dapm_stream_event(codec, |
320 | codec_dai->playback.stream_name, | |
db2a4165 | 321 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
322 | } |
323 | } | |
324 | mutex_unlock(&pcm_mutex); | |
325 | } | |
326 | ||
327 | /* | |
328 | * Called by ALSA when a PCM substream is closed. Private data can be | |
329 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
330 | * shutdown. | |
331 | */ | |
332 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
333 | { | |
334 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
335 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 336 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 337 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 338 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
339 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
340 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 341 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
342 | |
343 | mutex_lock(&pcm_mutex); | |
344 | ||
345 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
cb666e5b | 346 | cpu_dai->playback.active = codec_dai->playback.active = 0; |
db2a4165 | 347 | else |
cb666e5b | 348 | cpu_dai->capture.active = codec_dai->capture.active = 0; |
db2a4165 | 349 | |
cb666e5b LG |
350 | if (codec_dai->playback.active == 0 && |
351 | codec_dai->capture.active == 0) { | |
352 | cpu_dai->active = codec_dai->active = 0; | |
db2a4165 FM |
353 | } |
354 | codec->active--; | |
355 | ||
6010b2da MB |
356 | /* Muting the DAC suppresses artifacts caused during digital |
357 | * shutdown, for example from stopping clocks. | |
358 | */ | |
359 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
360 | snd_soc_dai_digital_mute(codec_dai, 1); | |
361 | ||
6335d055 EM |
362 | if (cpu_dai->ops->shutdown) |
363 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 364 | |
6335d055 EM |
365 | if (codec_dai->ops->shutdown) |
366 | codec_dai->ops->shutdown(substream, codec_dai); | |
db2a4165 FM |
367 | |
368 | if (machine->ops && machine->ops->shutdown) | |
369 | machine->ops->shutdown(substream); | |
370 | ||
371 | if (platform->pcm_ops->close) | |
372 | platform->pcm_ops->close(substream); | |
cb666e5b | 373 | cpu_dai->runtime = NULL; |
db2a4165 FM |
374 | |
375 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
376 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 377 | codec_dai->pop_wait = 1; |
6308419a | 378 | schedule_delayed_work(&card->delayed_work, |
db2a4165 FM |
379 | msecs_to_jiffies(pmdown_time)); |
380 | } else { | |
381 | /* capture streams can be powered down now */ | |
cb666e5b | 382 | snd_soc_dapm_stream_event(codec, |
0b4d221b LG |
383 | codec_dai->capture.stream_name, |
384 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 FM |
385 | } |
386 | ||
387 | mutex_unlock(&pcm_mutex); | |
388 | return 0; | |
389 | } | |
390 | ||
391 | /* | |
392 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
393 | * rate, etc. This function is non atomic and can be called multiple times, | |
394 | * it can refer to the runtime info. | |
395 | */ | |
396 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
397 | { | |
398 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
399 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 400 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 401 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 402 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
403 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
404 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 405 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
406 | int ret = 0; |
407 | ||
408 | mutex_lock(&pcm_mutex); | |
cb666e5b LG |
409 | |
410 | if (machine->ops && machine->ops->prepare) { | |
411 | ret = machine->ops->prepare(substream); | |
412 | if (ret < 0) { | |
413 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
414 | goto out; | |
415 | } | |
416 | } | |
417 | ||
db2a4165 FM |
418 | if (platform->pcm_ops->prepare) { |
419 | ret = platform->pcm_ops->prepare(substream); | |
a71a468a LG |
420 | if (ret < 0) { |
421 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 422 | goto out; |
a71a468a | 423 | } |
db2a4165 FM |
424 | } |
425 | ||
6335d055 EM |
426 | if (codec_dai->ops->prepare) { |
427 | ret = codec_dai->ops->prepare(substream, codec_dai); | |
a71a468a LG |
428 | if (ret < 0) { |
429 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 430 | goto out; |
a71a468a | 431 | } |
db2a4165 FM |
432 | } |
433 | ||
6335d055 EM |
434 | if (cpu_dai->ops->prepare) { |
435 | ret = cpu_dai->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
436 | if (ret < 0) { |
437 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
438 | goto out; | |
439 | } | |
440 | } | |
db2a4165 | 441 | |
d45f6219 MB |
442 | /* cancel any delayed stream shutdown that is pending */ |
443 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
444 | codec_dai->pop_wait) { | |
445 | codec_dai->pop_wait = 0; | |
6308419a | 446 | cancel_delayed_work(&card->delayed_work); |
d45f6219 | 447 | } |
db2a4165 | 448 | |
452c5eaa MB |
449 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
450 | snd_soc_dapm_stream_event(codec, | |
451 | codec_dai->playback.stream_name, | |
452 | SND_SOC_DAPM_STREAM_START); | |
453 | else | |
454 | snd_soc_dapm_stream_event(codec, | |
455 | codec_dai->capture.stream_name, | |
456 | SND_SOC_DAPM_STREAM_START); | |
8c6529db | 457 | |
452c5eaa | 458 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
459 | |
460 | out: | |
461 | mutex_unlock(&pcm_mutex); | |
462 | return ret; | |
463 | } | |
464 | ||
465 | /* | |
466 | * Called by ALSA when the hardware params are set by application. This | |
467 | * function can also be called multiple times and can allocate buffers | |
468 | * (using snd_pcm_lib_* ). It's non-atomic. | |
469 | */ | |
470 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
471 | struct snd_pcm_hw_params *params) | |
472 | { | |
473 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
474 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 475 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
476 | struct snd_soc_card *card = socdev->card; |
477 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
478 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
479 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
480 | int ret = 0; |
481 | ||
482 | mutex_lock(&pcm_mutex); | |
483 | ||
cb666e5b LG |
484 | if (machine->ops && machine->ops->hw_params) { |
485 | ret = machine->ops->hw_params(substream, params); | |
486 | if (ret < 0) { | |
487 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 488 | goto out; |
cb666e5b | 489 | } |
db2a4165 FM |
490 | } |
491 | ||
6335d055 EM |
492 | if (codec_dai->ops->hw_params) { |
493 | ret = codec_dai->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
494 | if (ret < 0) { |
495 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
496 | codec_dai->name); |
497 | goto codec_err; | |
db2a4165 FM |
498 | } |
499 | } | |
500 | ||
6335d055 EM |
501 | if (cpu_dai->ops->hw_params) { |
502 | ret = cpu_dai->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 503 | if (ret < 0) { |
3ff3f64b | 504 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 505 | cpu_dai->name); |
db2a4165 FM |
506 | goto interface_err; |
507 | } | |
508 | } | |
509 | ||
510 | if (platform->pcm_ops->hw_params) { | |
511 | ret = platform->pcm_ops->hw_params(substream, params); | |
512 | if (ret < 0) { | |
3ff3f64b | 513 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
514 | platform->name); |
515 | goto platform_err; | |
516 | } | |
517 | } | |
518 | ||
06f409d7 MB |
519 | machine->rate = params_rate(params); |
520 | ||
db2a4165 FM |
521 | out: |
522 | mutex_unlock(&pcm_mutex); | |
523 | return ret; | |
524 | ||
db2a4165 | 525 | platform_err: |
6335d055 EM |
526 | if (cpu_dai->ops->hw_free) |
527 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
528 | |
529 | interface_err: | |
6335d055 EM |
530 | if (codec_dai->ops->hw_free) |
531 | codec_dai->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
532 | |
533 | codec_err: | |
3ff3f64b | 534 | if (machine->ops && machine->ops->hw_free) |
cb666e5b | 535 | machine->ops->hw_free(substream); |
db2a4165 FM |
536 | |
537 | mutex_unlock(&pcm_mutex); | |
538 | return ret; | |
539 | } | |
540 | ||
541 | /* | |
542 | * Free's resources allocated by hw_params, can be called multiple times | |
543 | */ | |
544 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
545 | { | |
546 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
547 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 548 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
549 | struct snd_soc_card *card = socdev->card; |
550 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
551 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
552 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 553 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
554 | |
555 | mutex_lock(&pcm_mutex); | |
556 | ||
557 | /* apply codec digital mute */ | |
8c6529db LG |
558 | if (!codec->active) |
559 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
560 | |
561 | /* free any machine hw params */ | |
562 | if (machine->ops && machine->ops->hw_free) | |
563 | machine->ops->hw_free(substream); | |
564 | ||
565 | /* free any DMA resources */ | |
566 | if (platform->pcm_ops->hw_free) | |
567 | platform->pcm_ops->hw_free(substream); | |
568 | ||
569 | /* now free hw params for the DAI's */ | |
6335d055 EM |
570 | if (codec_dai->ops->hw_free) |
571 | codec_dai->ops->hw_free(substream, codec_dai); | |
db2a4165 | 572 | |
6335d055 EM |
573 | if (cpu_dai->ops->hw_free) |
574 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
575 | |
576 | mutex_unlock(&pcm_mutex); | |
577 | return 0; | |
578 | } | |
579 | ||
580 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
581 | { | |
582 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
583 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 584 | struct snd_soc_card *card= socdev->card; |
cb666e5b | 585 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 586 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
587 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
588 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
589 | int ret; |
590 | ||
6335d055 EM |
591 | if (codec_dai->ops->trigger) { |
592 | ret = codec_dai->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
593 | if (ret < 0) |
594 | return ret; | |
595 | } | |
596 | ||
597 | if (platform->pcm_ops->trigger) { | |
598 | ret = platform->pcm_ops->trigger(substream, cmd); | |
599 | if (ret < 0) | |
600 | return ret; | |
601 | } | |
602 | ||
6335d055 EM |
603 | if (cpu_dai->ops->trigger) { |
604 | ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
605 | if (ret < 0) |
606 | return ret; | |
607 | } | |
608 | return 0; | |
609 | } | |
610 | ||
611 | /* ASoC PCM operations */ | |
612 | static struct snd_pcm_ops soc_pcm_ops = { | |
613 | .open = soc_pcm_open, | |
614 | .close = soc_codec_close, | |
615 | .hw_params = soc_pcm_hw_params, | |
616 | .hw_free = soc_pcm_hw_free, | |
617 | .prepare = soc_pcm_prepare, | |
618 | .trigger = soc_pcm_trigger, | |
619 | }; | |
620 | ||
621 | #ifdef CONFIG_PM | |
622 | /* powers down audio subsystem for suspend */ | |
416356fc | 623 | static int soc_suspend(struct device *dev) |
db2a4165 | 624 | { |
416356fc | 625 | struct platform_device *pdev = to_platform_device(dev); |
3ff3f64b | 626 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
87506549 | 627 | struct snd_soc_card *card = socdev->card; |
87689d56 | 628 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 629 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 630 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
631 | int i; |
632 | ||
e3509ff0 DM |
633 | /* If the initialization of this soc device failed, there is no codec |
634 | * associated with it. Just bail out in this case. | |
635 | */ | |
636 | if (!codec) | |
637 | return 0; | |
638 | ||
6ed25978 AG |
639 | /* Due to the resume being scheduled into a workqueue we could |
640 | * suspend before that's finished - wait for it to complete. | |
641 | */ | |
642 | snd_power_lock(codec->card); | |
643 | snd_power_wait(codec->card, SNDRV_CTL_POWER_D0); | |
644 | snd_power_unlock(codec->card); | |
645 | ||
646 | /* we're going to block userspace touching us until resume completes */ | |
647 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot); | |
648 | ||
db2a4165 | 649 | /* mute any active DAC's */ |
dee89c4d MB |
650 | for (i = 0; i < card->num_links; i++) { |
651 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
652 | if (dai->ops->digital_mute && dai->playback.active) |
653 | dai->ops->digital_mute(dai, 1); | |
db2a4165 FM |
654 | } |
655 | ||
4ccab3e7 | 656 | /* suspend all pcms */ |
87506549 MB |
657 | for (i = 0; i < card->num_links; i++) |
658 | snd_pcm_suspend_all(card->dai_link[i].pcm); | |
4ccab3e7 | 659 | |
87506549 | 660 | if (card->suspend_pre) |
416356fc | 661 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 662 | |
87506549 MB |
663 | for (i = 0; i < card->num_links; i++) { |
664 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 665 | if (cpu_dai->suspend && !cpu_dai->ac97_control) |
dc7d7b83 | 666 | cpu_dai->suspend(cpu_dai); |
db2a4165 | 667 | if (platform->suspend) |
07c84d04 | 668 | platform->suspend(cpu_dai); |
db2a4165 FM |
669 | } |
670 | ||
671 | /* close any waiting streams and save state */ | |
6308419a | 672 | run_delayed_work(&card->delayed_work); |
0be9898a | 673 | codec->suspend_bias_level = codec->bias_level; |
db2a4165 | 674 | |
3ff3f64b | 675 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
676 | char *stream = codec->dai[i].playback.stream_name; |
677 | if (stream != NULL) | |
678 | snd_soc_dapm_stream_event(codec, stream, | |
679 | SND_SOC_DAPM_STREAM_SUSPEND); | |
680 | stream = codec->dai[i].capture.stream_name; | |
681 | if (stream != NULL) | |
682 | snd_soc_dapm_stream_event(codec, stream, | |
683 | SND_SOC_DAPM_STREAM_SUSPEND); | |
684 | } | |
685 | ||
686 | if (codec_dev->suspend) | |
416356fc | 687 | codec_dev->suspend(pdev, PMSG_SUSPEND); |
db2a4165 | 688 | |
87506549 MB |
689 | for (i = 0; i < card->num_links; i++) { |
690 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 691 | if (cpu_dai->suspend && cpu_dai->ac97_control) |
dc7d7b83 | 692 | cpu_dai->suspend(cpu_dai); |
db2a4165 FM |
693 | } |
694 | ||
87506549 | 695 | if (card->suspend_post) |
416356fc | 696 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
697 | |
698 | return 0; | |
699 | } | |
700 | ||
6ed25978 AG |
701 | /* deferred resume work, so resume can complete before we finished |
702 | * setting our codec back up, which can be very slow on I2C | |
703 | */ | |
704 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 705 | { |
6308419a MB |
706 | struct snd_soc_card *card = container_of(work, |
707 | struct snd_soc_card, | |
708 | deferred_resume_work); | |
709 | struct snd_soc_device *socdev = card->socdev; | |
87689d56 | 710 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 711 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 712 | struct snd_soc_codec *codec = card->codec; |
6ed25978 | 713 | struct platform_device *pdev = to_platform_device(socdev->dev); |
db2a4165 FM |
714 | int i; |
715 | ||
6ed25978 AG |
716 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
717 | * so userspace apps are blocked from touching us | |
718 | */ | |
719 | ||
fde22f27 | 720 | dev_dbg(socdev->dev, "starting resume work\n"); |
6ed25978 | 721 | |
87506549 MB |
722 | if (card->resume_pre) |
723 | card->resume_pre(pdev); | |
db2a4165 | 724 | |
87506549 MB |
725 | for (i = 0; i < card->num_links; i++) { |
726 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 727 | if (cpu_dai->resume && cpu_dai->ac97_control) |
dc7d7b83 | 728 | cpu_dai->resume(cpu_dai); |
db2a4165 FM |
729 | } |
730 | ||
731 | if (codec_dev->resume) | |
732 | codec_dev->resume(pdev); | |
733 | ||
3ff3f64b MB |
734 | for (i = 0; i < codec->num_dai; i++) { |
735 | char *stream = codec->dai[i].playback.stream_name; | |
db2a4165 FM |
736 | if (stream != NULL) |
737 | snd_soc_dapm_stream_event(codec, stream, | |
738 | SND_SOC_DAPM_STREAM_RESUME); | |
739 | stream = codec->dai[i].capture.stream_name; | |
740 | if (stream != NULL) | |
741 | snd_soc_dapm_stream_event(codec, stream, | |
742 | SND_SOC_DAPM_STREAM_RESUME); | |
743 | } | |
744 | ||
3ff3f64b | 745 | /* unmute any active DACs */ |
dee89c4d MB |
746 | for (i = 0; i < card->num_links; i++) { |
747 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
748 | if (dai->ops->digital_mute && dai->playback.active) |
749 | dai->ops->digital_mute(dai, 0); | |
db2a4165 FM |
750 | } |
751 | ||
87506549 MB |
752 | for (i = 0; i < card->num_links; i++) { |
753 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 754 | if (cpu_dai->resume && !cpu_dai->ac97_control) |
dc7d7b83 | 755 | cpu_dai->resume(cpu_dai); |
db2a4165 | 756 | if (platform->resume) |
07c84d04 | 757 | platform->resume(cpu_dai); |
db2a4165 FM |
758 | } |
759 | ||
87506549 MB |
760 | if (card->resume_post) |
761 | card->resume_post(pdev); | |
db2a4165 | 762 | |
fde22f27 | 763 | dev_dbg(socdev->dev, "resume work completed\n"); |
6ed25978 AG |
764 | |
765 | /* userspace can access us now we are back as we were before */ | |
766 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0); | |
767 | } | |
768 | ||
769 | /* powers up audio subsystem after a suspend */ | |
416356fc | 770 | static int soc_resume(struct device *dev) |
6ed25978 | 771 | { |
416356fc | 772 | struct platform_device *pdev = to_platform_device(dev); |
6ed25978 | 773 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
6308419a | 774 | struct snd_soc_card *card = socdev->card; |
64ab9baa | 775 | struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai; |
6ed25978 | 776 | |
64ab9baa MB |
777 | /* AC97 devices might have other drivers hanging off them so |
778 | * need to resume immediately. Other drivers don't have that | |
779 | * problem and may take a substantial amount of time to resume | |
780 | * due to I/O costs and anti-pop so handle them out of line. | |
781 | */ | |
782 | if (cpu_dai->ac97_control) { | |
783 | dev_dbg(socdev->dev, "Resuming AC97 immediately\n"); | |
784 | soc_resume_deferred(&card->deferred_resume_work); | |
785 | } else { | |
786 | dev_dbg(socdev->dev, "Scheduling resume work\n"); | |
787 | if (!schedule_work(&card->deferred_resume_work)) | |
788 | dev_err(socdev->dev, "resume work item may be lost\n"); | |
789 | } | |
6ed25978 | 790 | |
db2a4165 FM |
791 | return 0; |
792 | } | |
793 | ||
831dc0f1 MB |
794 | /** |
795 | * snd_soc_suspend_device: Notify core of device suspend | |
796 | * | |
797 | * @dev: Device being suspended. | |
798 | * | |
799 | * In order to ensure that the entire audio subsystem is suspended in a | |
800 | * coordinated fashion ASoC devices should suspend themselves when | |
801 | * called by ASoC. When the standard kernel suspend process asks the | |
802 | * device to suspend it should call this function to initiate a suspend | |
803 | * of the entire ASoC card. | |
804 | * | |
805 | * \note Currently this function is stubbed out. | |
806 | */ | |
807 | int snd_soc_suspend_device(struct device *dev) | |
808 | { | |
809 | return 0; | |
810 | } | |
811 | EXPORT_SYMBOL_GPL(snd_soc_suspend_device); | |
812 | ||
813 | /** | |
814 | * snd_soc_resume_device: Notify core of device resume | |
815 | * | |
816 | * @dev: Device being resumed. | |
817 | * | |
818 | * In order to ensure that the entire audio subsystem is resumed in a | |
819 | * coordinated fashion ASoC devices should resume themselves when called | |
820 | * by ASoC. When the standard kernel resume process asks the device | |
821 | * to resume it should call this function. Once all the components of | |
822 | * the card have notified that they are ready to be resumed the card | |
823 | * will be resumed. | |
824 | * | |
825 | * \note Currently this function is stubbed out. | |
826 | */ | |
827 | int snd_soc_resume_device(struct device *dev) | |
828 | { | |
829 | return 0; | |
830 | } | |
831 | EXPORT_SYMBOL_GPL(snd_soc_resume_device); | |
db2a4165 FM |
832 | #else |
833 | #define soc_suspend NULL | |
834 | #define soc_resume NULL | |
835 | #endif | |
836 | ||
435c5e25 | 837 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
db2a4165 | 838 | { |
435c5e25 MB |
839 | struct platform_device *pdev = container_of(card->dev, |
840 | struct platform_device, | |
841 | dev); | |
842 | struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev; | |
843 | struct snd_soc_platform *platform; | |
844 | struct snd_soc_dai *dai; | |
6b05eda6 | 845 | int i, found, ret, ac97; |
435c5e25 MB |
846 | |
847 | if (card->instantiated) | |
848 | return; | |
849 | ||
850 | found = 0; | |
851 | list_for_each_entry(platform, &platform_list, list) | |
852 | if (card->platform == platform) { | |
853 | found = 1; | |
854 | break; | |
855 | } | |
856 | if (!found) { | |
857 | dev_dbg(card->dev, "Platform %s not registered\n", | |
858 | card->platform->name); | |
859 | return; | |
860 | } | |
6308419a | 861 | |
6b05eda6 | 862 | ac97 = 0; |
435c5e25 MB |
863 | for (i = 0; i < card->num_links; i++) { |
864 | found = 0; | |
865 | list_for_each_entry(dai, &dai_list, list) | |
866 | if (card->dai_link[i].cpu_dai == dai) { | |
867 | found = 1; | |
868 | break; | |
869 | } | |
870 | if (!found) { | |
871 | dev_dbg(card->dev, "DAI %s not registered\n", | |
872 | card->dai_link[i].cpu_dai->name); | |
873 | return; | |
874 | } | |
6b05eda6 MB |
875 | |
876 | if (card->dai_link[i].cpu_dai->ac97_control) | |
877 | ac97 = 1; | |
c5af3a2e MB |
878 | } |
879 | ||
6b05eda6 MB |
880 | /* If we have AC97 in the system then don't wait for the |
881 | * codec. This will need revisiting if we have to handle | |
882 | * systems with mixed AC97 and non-AC97 parts. Only check for | |
883 | * DAIs currently; we can't do this per link since some AC97 | |
884 | * codecs have non-AC97 DAIs. | |
885 | */ | |
886 | if (!ac97) | |
887 | for (i = 0; i < card->num_links; i++) { | |
888 | found = 0; | |
889 | list_for_each_entry(dai, &dai_list, list) | |
890 | if (card->dai_link[i].codec_dai == dai) { | |
891 | found = 1; | |
892 | break; | |
893 | } | |
894 | if (!found) { | |
895 | dev_dbg(card->dev, "DAI %s not registered\n", | |
896 | card->dai_link[i].codec_dai->name); | |
897 | return; | |
898 | } | |
899 | } | |
900 | ||
435c5e25 MB |
901 | /* Note that we do not current check for codec components */ |
902 | ||
903 | dev_dbg(card->dev, "All components present, instantiating\n"); | |
904 | ||
905 | /* Found everything, bring it up */ | |
87506549 MB |
906 | if (card->probe) { |
907 | ret = card->probe(pdev); | |
3ff3f64b | 908 | if (ret < 0) |
435c5e25 | 909 | return; |
db2a4165 FM |
910 | } |
911 | ||
87506549 MB |
912 | for (i = 0; i < card->num_links; i++) { |
913 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 914 | if (cpu_dai->probe) { |
bdb92876 | 915 | ret = cpu_dai->probe(pdev, cpu_dai); |
3ff3f64b | 916 | if (ret < 0) |
db2a4165 FM |
917 | goto cpu_dai_err; |
918 | } | |
919 | } | |
920 | ||
921 | if (codec_dev->probe) { | |
922 | ret = codec_dev->probe(pdev); | |
3ff3f64b | 923 | if (ret < 0) |
db2a4165 FM |
924 | goto cpu_dai_err; |
925 | } | |
926 | ||
927 | if (platform->probe) { | |
928 | ret = platform->probe(pdev); | |
3ff3f64b | 929 | if (ret < 0) |
db2a4165 FM |
930 | goto platform_err; |
931 | } | |
932 | ||
933 | /* DAPM stream work */ | |
6308419a | 934 | INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work); |
1301a964 | 935 | #ifdef CONFIG_PM |
6ed25978 | 936 | /* deferred resume work */ |
6308419a | 937 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); |
1301a964 | 938 | #endif |
6ed25978 | 939 | |
435c5e25 MB |
940 | card->instantiated = 1; |
941 | ||
942 | return; | |
db2a4165 | 943 | |
db2a4165 FM |
944 | platform_err: |
945 | if (codec_dev->remove) | |
946 | codec_dev->remove(pdev); | |
947 | ||
948 | cpu_dai_err: | |
18b9b3d9 | 949 | for (i--; i >= 0; i--) { |
87506549 | 950 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
db2a4165 | 951 | if (cpu_dai->remove) |
bdb92876 | 952 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
953 | } |
954 | ||
87506549 MB |
955 | if (card->remove) |
956 | card->remove(pdev); | |
435c5e25 | 957 | } |
db2a4165 | 958 | |
435c5e25 MB |
959 | /* |
960 | * Attempt to initialise any uninitalised cards. Must be called with | |
961 | * client_mutex. | |
962 | */ | |
963 | static void snd_soc_instantiate_cards(void) | |
964 | { | |
965 | struct snd_soc_card *card; | |
966 | list_for_each_entry(card, &card_list, list) | |
967 | snd_soc_instantiate_card(card); | |
968 | } | |
969 | ||
970 | /* probes a new socdev */ | |
971 | static int soc_probe(struct platform_device *pdev) | |
972 | { | |
973 | int ret = 0; | |
974 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
975 | struct snd_soc_card *card = socdev->card; | |
976 | ||
977 | /* Bodge while we push things out of socdev */ | |
978 | card->socdev = socdev; | |
979 | ||
980 | /* Bodge while we unpick instantiation */ | |
981 | card->dev = &pdev->dev; | |
982 | ret = snd_soc_register_card(card); | |
983 | if (ret != 0) { | |
984 | dev_err(&pdev->dev, "Failed to register card\n"); | |
985 | return ret; | |
986 | } | |
987 | ||
988 | return 0; | |
db2a4165 FM |
989 | } |
990 | ||
991 | /* removes a socdev */ | |
992 | static int soc_remove(struct platform_device *pdev) | |
993 | { | |
994 | int i; | |
995 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
87506549 | 996 | struct snd_soc_card *card = socdev->card; |
87689d56 | 997 | struct snd_soc_platform *platform = card->platform; |
db2a4165 FM |
998 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
999 | ||
914dc182 MR |
1000 | if (!card->instantiated) |
1001 | return 0; | |
1002 | ||
6308419a | 1003 | run_delayed_work(&card->delayed_work); |
965ac42c | 1004 | |
db2a4165 FM |
1005 | if (platform->remove) |
1006 | platform->remove(pdev); | |
1007 | ||
1008 | if (codec_dev->remove) | |
1009 | codec_dev->remove(pdev); | |
1010 | ||
87506549 MB |
1011 | for (i = 0; i < card->num_links; i++) { |
1012 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 1013 | if (cpu_dai->remove) |
bdb92876 | 1014 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
1015 | } |
1016 | ||
87506549 MB |
1017 | if (card->remove) |
1018 | card->remove(pdev); | |
db2a4165 | 1019 | |
c5af3a2e MB |
1020 | snd_soc_unregister_card(card); |
1021 | ||
db2a4165 FM |
1022 | return 0; |
1023 | } | |
1024 | ||
416356fc | 1025 | static int soc_poweroff(struct device *dev) |
51737470 | 1026 | { |
416356fc | 1027 | struct platform_device *pdev = to_platform_device(dev); |
51737470 MB |
1028 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
1029 | struct snd_soc_card *card = socdev->card; | |
1030 | ||
1031 | if (!card->instantiated) | |
416356fc | 1032 | return 0; |
51737470 MB |
1033 | |
1034 | /* Flush out pmdown_time work - we actually do want to run it | |
1035 | * now, we're shutting down so no imminent restart. */ | |
1036 | run_delayed_work(&card->delayed_work); | |
1037 | ||
1038 | snd_soc_dapm_shutdown(socdev); | |
416356fc MB |
1039 | |
1040 | return 0; | |
51737470 MB |
1041 | } |
1042 | ||
416356fc MB |
1043 | static struct dev_pm_ops soc_pm_ops = { |
1044 | .suspend = soc_suspend, | |
1045 | .resume = soc_resume, | |
1046 | .poweroff = soc_poweroff, | |
1047 | }; | |
1048 | ||
db2a4165 FM |
1049 | /* ASoC platform driver */ |
1050 | static struct platform_driver soc_driver = { | |
1051 | .driver = { | |
1052 | .name = "soc-audio", | |
8b45a209 | 1053 | .owner = THIS_MODULE, |
416356fc | 1054 | .pm = &soc_pm_ops, |
db2a4165 FM |
1055 | }, |
1056 | .probe = soc_probe, | |
1057 | .remove = soc_remove, | |
db2a4165 FM |
1058 | }; |
1059 | ||
1060 | /* create a new pcm */ | |
1061 | static int soc_new_pcm(struct snd_soc_device *socdev, | |
1062 | struct snd_soc_dai_link *dai_link, int num) | |
1063 | { | |
87689d56 | 1064 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1065 | struct snd_soc_codec *codec = card->codec; |
87689d56 | 1066 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
1067 | struct snd_soc_dai *codec_dai = dai_link->codec_dai; |
1068 | struct snd_soc_dai *cpu_dai = dai_link->cpu_dai; | |
db2a4165 FM |
1069 | struct snd_soc_pcm_runtime *rtd; |
1070 | struct snd_pcm *pcm; | |
1071 | char new_name[64]; | |
1072 | int ret = 0, playback = 0, capture = 0; | |
1073 | ||
1074 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
1075 | if (rtd == NULL) | |
1076 | return -ENOMEM; | |
cb666e5b LG |
1077 | |
1078 | rtd->dai = dai_link; | |
db2a4165 | 1079 | rtd->socdev = socdev; |
6627a653 | 1080 | codec_dai->codec = card->codec; |
db2a4165 FM |
1081 | |
1082 | /* check client and interface hw capabilities */ | |
3ba9e10a MB |
1083 | sprintf(new_name, "%s %s-%d", dai_link->stream_name, codec_dai->name, |
1084 | num); | |
db2a4165 FM |
1085 | |
1086 | if (codec_dai->playback.channels_min) | |
1087 | playback = 1; | |
1088 | if (codec_dai->capture.channels_min) | |
1089 | capture = 1; | |
1090 | ||
1091 | ret = snd_pcm_new(codec->card, new_name, codec->pcm_devs++, playback, | |
1092 | capture, &pcm); | |
1093 | if (ret < 0) { | |
3ff3f64b MB |
1094 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", |
1095 | codec->name); | |
db2a4165 FM |
1096 | kfree(rtd); |
1097 | return ret; | |
1098 | } | |
1099 | ||
4ccab3e7 | 1100 | dai_link->pcm = pcm; |
db2a4165 | 1101 | pcm->private_data = rtd; |
87689d56 MB |
1102 | soc_pcm_ops.mmap = platform->pcm_ops->mmap; |
1103 | soc_pcm_ops.pointer = platform->pcm_ops->pointer; | |
1104 | soc_pcm_ops.ioctl = platform->pcm_ops->ioctl; | |
1105 | soc_pcm_ops.copy = platform->pcm_ops->copy; | |
1106 | soc_pcm_ops.silence = platform->pcm_ops->silence; | |
1107 | soc_pcm_ops.ack = platform->pcm_ops->ack; | |
1108 | soc_pcm_ops.page = platform->pcm_ops->page; | |
db2a4165 FM |
1109 | |
1110 | if (playback) | |
1111 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1112 | ||
1113 | if (capture) | |
1114 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1115 | ||
87689d56 | 1116 | ret = platform->pcm_new(codec->card, codec_dai, pcm); |
db2a4165 FM |
1117 | if (ret < 0) { |
1118 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
1119 | kfree(rtd); | |
1120 | return ret; | |
1121 | } | |
1122 | ||
87689d56 | 1123 | pcm->private_free = platform->pcm_free; |
db2a4165 FM |
1124 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1125 | cpu_dai->name); | |
1126 | return ret; | |
1127 | } | |
1128 | ||
096e49d5 MB |
1129 | /** |
1130 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1131 | * | |
1132 | * @codec: CODEC to query. | |
1133 | * @reg: Register to query. | |
1134 | * | |
1135 | * Boolean function indiciating if a CODEC register is volatile. | |
1136 | */ | |
1137 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1138 | { | |
1139 | if (codec->volatile_register) | |
1140 | return codec->volatile_register(reg); | |
1141 | else | |
1142 | return 0; | |
1143 | } | |
1144 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1145 | ||
db2a4165 | 1146 | /* codec register dump */ |
6627a653 | 1147 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) |
db2a4165 | 1148 | { |
db2a4165 FM |
1149 | int i, step = 1, count = 0; |
1150 | ||
1151 | if (!codec->reg_cache_size) | |
1152 | return 0; | |
1153 | ||
1154 | if (codec->reg_cache_step) | |
1155 | step = codec->reg_cache_step; | |
1156 | ||
1157 | count += sprintf(buf, "%s registers\n", codec->name); | |
58cd33c0 | 1158 | for (i = 0; i < codec->reg_cache_size; i += step) { |
77ee09c6 MB |
1159 | if (codec->readable_register && !codec->readable_register(i)) |
1160 | continue; | |
1161 | ||
58cd33c0 MB |
1162 | count += sprintf(buf + count, "%2x: ", i); |
1163 | if (count >= PAGE_SIZE - 1) | |
1164 | break; | |
1165 | ||
1166 | if (codec->display_register) | |
1167 | count += codec->display_register(codec, buf + count, | |
1168 | PAGE_SIZE - count, i); | |
1169 | else | |
1170 | count += snprintf(buf + count, PAGE_SIZE - count, | |
1171 | "%4x", codec->read(codec, i)); | |
1172 | ||
1173 | if (count >= PAGE_SIZE - 1) | |
1174 | break; | |
1175 | ||
1176 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
1177 | if (count >= PAGE_SIZE - 1) | |
1178 | break; | |
1179 | } | |
1180 | ||
1181 | /* Truncate count; min() would cause a warning */ | |
1182 | if (count >= PAGE_SIZE) | |
1183 | count = PAGE_SIZE - 1; | |
db2a4165 FM |
1184 | |
1185 | return count; | |
1186 | } | |
12ef193d TK |
1187 | static ssize_t codec_reg_show(struct device *dev, |
1188 | struct device_attribute *attr, char *buf) | |
1189 | { | |
1190 | struct snd_soc_device *devdata = dev_get_drvdata(dev); | |
6627a653 | 1191 | return soc_codec_reg_show(devdata->card->codec, buf); |
12ef193d TK |
1192 | } |
1193 | ||
db2a4165 FM |
1194 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); |
1195 | ||
12ef193d TK |
1196 | #ifdef CONFIG_DEBUG_FS |
1197 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
1198 | { | |
1199 | file->private_data = inode->i_private; | |
1200 | return 0; | |
1201 | } | |
1202 | ||
1203 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
1204 | size_t count, loff_t *ppos) | |
1205 | { | |
1206 | ssize_t ret; | |
384c89e2 | 1207 | struct snd_soc_codec *codec = file->private_data; |
12ef193d TK |
1208 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
1209 | if (!buf) | |
1210 | return -ENOMEM; | |
6627a653 | 1211 | ret = soc_codec_reg_show(codec, buf); |
12ef193d TK |
1212 | if (ret >= 0) |
1213 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1214 | kfree(buf); | |
1215 | return ret; | |
1216 | } | |
1217 | ||
1218 | static ssize_t codec_reg_write_file(struct file *file, | |
1219 | const char __user *user_buf, size_t count, loff_t *ppos) | |
1220 | { | |
1221 | char buf[32]; | |
1222 | int buf_size; | |
1223 | char *start = buf; | |
1224 | unsigned long reg, value; | |
1225 | int step = 1; | |
384c89e2 | 1226 | struct snd_soc_codec *codec = file->private_data; |
12ef193d TK |
1227 | |
1228 | buf_size = min(count, (sizeof(buf)-1)); | |
1229 | if (copy_from_user(buf, user_buf, buf_size)) | |
1230 | return -EFAULT; | |
1231 | buf[buf_size] = 0; | |
1232 | ||
1233 | if (codec->reg_cache_step) | |
1234 | step = codec->reg_cache_step; | |
1235 | ||
1236 | while (*start == ' ') | |
1237 | start++; | |
1238 | reg = simple_strtoul(start, &start, 16); | |
1239 | if ((reg >= codec->reg_cache_size) || (reg % step)) | |
1240 | return -EINVAL; | |
1241 | while (*start == ' ') | |
1242 | start++; | |
1243 | if (strict_strtoul(start, 16, &value)) | |
1244 | return -EINVAL; | |
1245 | codec->write(codec, reg, value); | |
1246 | return buf_size; | |
1247 | } | |
1248 | ||
1249 | static const struct file_operations codec_reg_fops = { | |
1250 | .open = codec_reg_open_file, | |
1251 | .read = codec_reg_read_file, | |
1252 | .write = codec_reg_write_file, | |
1253 | }; | |
1254 | ||
384c89e2 | 1255 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d | 1256 | { |
384c89e2 MB |
1257 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
1258 | debugfs_root, codec, | |
1259 | &codec_reg_fops); | |
1260 | if (!codec->debugfs_reg) | |
1261 | printk(KERN_WARNING | |
1262 | "ASoC: Failed to create codec register debugfs file\n"); | |
1263 | ||
1264 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744, | |
1265 | debugfs_root, | |
1266 | &codec->pop_time); | |
1267 | if (!codec->debugfs_pop_time) | |
1268 | printk(KERN_WARNING | |
1269 | "Failed to create pop time debugfs file\n"); | |
79fb9387 MB |
1270 | |
1271 | codec->debugfs_dapm = debugfs_create_dir("dapm", debugfs_root); | |
1272 | if (!codec->debugfs_dapm) | |
1273 | printk(KERN_WARNING | |
1274 | "Failed to create DAPM debugfs directory\n"); | |
1275 | ||
1276 | snd_soc_dapm_debugfs_init(codec); | |
12ef193d TK |
1277 | } |
1278 | ||
384c89e2 | 1279 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d | 1280 | { |
79fb9387 | 1281 | debugfs_remove_recursive(codec->debugfs_dapm); |
384c89e2 MB |
1282 | debugfs_remove(codec->debugfs_pop_time); |
1283 | debugfs_remove(codec->debugfs_reg); | |
12ef193d TK |
1284 | } |
1285 | ||
1286 | #else | |
1287 | ||
384c89e2 | 1288 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d TK |
1289 | { |
1290 | } | |
1291 | ||
384c89e2 | 1292 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) |
12ef193d TK |
1293 | { |
1294 | } | |
1295 | #endif | |
1296 | ||
db2a4165 FM |
1297 | /** |
1298 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1299 | * @codec: audio codec | |
1300 | * @ops: AC97 bus operations | |
1301 | * @num: AC97 codec number | |
1302 | * | |
1303 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1304 | */ | |
1305 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1306 | struct snd_ac97_bus_ops *ops, int num) | |
1307 | { | |
1308 | mutex_lock(&codec->mutex); | |
1309 | ||
1310 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1311 | if (codec->ac97 == NULL) { | |
1312 | mutex_unlock(&codec->mutex); | |
1313 | return -ENOMEM; | |
1314 | } | |
1315 | ||
1316 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1317 | if (codec->ac97->bus == NULL) { | |
1318 | kfree(codec->ac97); | |
1319 | codec->ac97 = NULL; | |
1320 | mutex_unlock(&codec->mutex); | |
1321 | return -ENOMEM; | |
1322 | } | |
1323 | ||
1324 | codec->ac97->bus->ops = ops; | |
1325 | codec->ac97->num = num; | |
1326 | mutex_unlock(&codec->mutex); | |
1327 | return 0; | |
1328 | } | |
1329 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1330 | ||
1331 | /** | |
1332 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1333 | * @codec: audio codec | |
1334 | * | |
1335 | * Frees AC97 codec device resources. | |
1336 | */ | |
1337 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1338 | { | |
1339 | mutex_lock(&codec->mutex); | |
1340 | kfree(codec->ac97->bus); | |
1341 | kfree(codec->ac97); | |
1342 | codec->ac97 = NULL; | |
1343 | mutex_unlock(&codec->mutex); | |
1344 | } | |
1345 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1346 | ||
1347 | /** | |
1348 | * snd_soc_update_bits - update codec register bits | |
1349 | * @codec: audio codec | |
1350 | * @reg: codec register | |
1351 | * @mask: register mask | |
1352 | * @value: new value | |
1353 | * | |
1354 | * Writes new register value. | |
1355 | * | |
1356 | * Returns 1 for change else 0. | |
1357 | */ | |
1358 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1359 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1360 | { |
1361 | int change; | |
46f5822f | 1362 | unsigned int old, new; |
db2a4165 FM |
1363 | |
1364 | mutex_lock(&io_mutex); | |
1365 | old = snd_soc_read(codec, reg); | |
1366 | new = (old & ~mask) | value; | |
1367 | change = old != new; | |
1368 | if (change) | |
1369 | snd_soc_write(codec, reg, new); | |
1370 | ||
1371 | mutex_unlock(&io_mutex); | |
1372 | return change; | |
1373 | } | |
1374 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1375 | ||
1376 | /** | |
1377 | * snd_soc_test_bits - test register for change | |
1378 | * @codec: audio codec | |
1379 | * @reg: codec register | |
1380 | * @mask: register mask | |
1381 | * @value: new value | |
1382 | * | |
1383 | * Tests a register with a new value and checks if the new value is | |
1384 | * different from the old value. | |
1385 | * | |
1386 | * Returns 1 for change else 0. | |
1387 | */ | |
1388 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1389 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1390 | { |
1391 | int change; | |
46f5822f | 1392 | unsigned int old, new; |
db2a4165 FM |
1393 | |
1394 | mutex_lock(&io_mutex); | |
1395 | old = snd_soc_read(codec, reg); | |
1396 | new = (old & ~mask) | value; | |
1397 | change = old != new; | |
1398 | mutex_unlock(&io_mutex); | |
1399 | ||
1400 | return change; | |
1401 | } | |
1402 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1403 | ||
db2a4165 FM |
1404 | /** |
1405 | * snd_soc_new_pcms - create new sound card and pcms | |
1406 | * @socdev: the SoC audio device | |
ac11a2b3 MB |
1407 | * @idx: ALSA card index |
1408 | * @xid: card identification | |
db2a4165 FM |
1409 | * |
1410 | * Create a new sound card based upon the codec and interface pcms. | |
1411 | * | |
1412 | * Returns 0 for success, else error. | |
1413 | */ | |
bc7320c5 | 1414 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid) |
db2a4165 | 1415 | { |
87506549 | 1416 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1417 | struct snd_soc_codec *codec = card->codec; |
bd7dd77c | 1418 | int ret, i; |
db2a4165 FM |
1419 | |
1420 | mutex_lock(&codec->mutex); | |
1421 | ||
1422 | /* register a sound card */ | |
bd7dd77c TI |
1423 | ret = snd_card_create(idx, xid, codec->owner, 0, &codec->card); |
1424 | if (ret < 0) { | |
db2a4165 FM |
1425 | printk(KERN_ERR "asoc: can't create sound card for codec %s\n", |
1426 | codec->name); | |
1427 | mutex_unlock(&codec->mutex); | |
bd7dd77c | 1428 | return ret; |
db2a4165 FM |
1429 | } |
1430 | ||
452c5eaa | 1431 | codec->socdev = socdev; |
db2a4165 FM |
1432 | codec->card->dev = socdev->dev; |
1433 | codec->card->private_data = codec; | |
1434 | strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver)); | |
1435 | ||
1436 | /* create the pcms */ | |
87506549 MB |
1437 | for (i = 0; i < card->num_links; i++) { |
1438 | ret = soc_new_pcm(socdev, &card->dai_link[i], i); | |
db2a4165 FM |
1439 | if (ret < 0) { |
1440 | printk(KERN_ERR "asoc: can't create pcm %s\n", | |
87506549 | 1441 | card->dai_link[i].stream_name); |
db2a4165 FM |
1442 | mutex_unlock(&codec->mutex); |
1443 | return ret; | |
1444 | } | |
1445 | } | |
1446 | ||
1447 | mutex_unlock(&codec->mutex); | |
1448 | return ret; | |
1449 | } | |
1450 | EXPORT_SYMBOL_GPL(snd_soc_new_pcms); | |
1451 | ||
1452 | /** | |
968a6025 | 1453 | * snd_soc_init_card - register sound card |
db2a4165 FM |
1454 | * @socdev: the SoC audio device |
1455 | * | |
1456 | * Register a SoC sound card. Also registers an AC97 device if the | |
1457 | * codec is AC97 for ad hoc devices. | |
1458 | * | |
1459 | * Returns 0 for success, else error. | |
1460 | */ | |
968a6025 | 1461 | int snd_soc_init_card(struct snd_soc_device *socdev) |
db2a4165 | 1462 | { |
87506549 | 1463 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1464 | struct snd_soc_codec *codec = card->codec; |
12e74f7d | 1465 | int ret = 0, i, ac97 = 0, err = 0; |
db2a4165 | 1466 | |
87506549 MB |
1467 | for (i = 0; i < card->num_links; i++) { |
1468 | if (card->dai_link[i].init) { | |
1469 | err = card->dai_link[i].init(codec); | |
12e74f7d LG |
1470 | if (err < 0) { |
1471 | printk(KERN_ERR "asoc: failed to init %s\n", | |
87506549 | 1472 | card->dai_link[i].stream_name); |
12e74f7d LG |
1473 | continue; |
1474 | } | |
1475 | } | |
474828a4 | 1476 | if (card->dai_link[i].codec_dai->ac97_control) { |
db2a4165 | 1477 | ac97 = 1; |
474828a4 MV |
1478 | snd_ac97_dev_add_pdata(codec->ac97, |
1479 | card->dai_link[i].cpu_dai->ac97_pdata); | |
1480 | } | |
db2a4165 FM |
1481 | } |
1482 | snprintf(codec->card->shortname, sizeof(codec->card->shortname), | |
87506549 | 1483 | "%s", card->name); |
db2a4165 | 1484 | snprintf(codec->card->longname, sizeof(codec->card->longname), |
87506549 | 1485 | "%s (%s)", card->name, codec->name); |
db2a4165 | 1486 | |
6d5701b2 MB |
1487 | /* Make sure all DAPM widgets are instantiated */ |
1488 | snd_soc_dapm_new_widgets(codec); | |
1489 | ||
db2a4165 FM |
1490 | ret = snd_card_register(codec->card); |
1491 | if (ret < 0) { | |
3ff3f64b | 1492 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", |
db2a4165 | 1493 | codec->name); |
12e74f7d | 1494 | goto out; |
db2a4165 FM |
1495 | } |
1496 | ||
08c8efe6 | 1497 | mutex_lock(&codec->mutex); |
db2a4165 | 1498 | #ifdef CONFIG_SND_SOC_AC97_BUS |
14fa43f5 MB |
1499 | /* Only instantiate AC97 if not already done by the adaptor |
1500 | * for the generic AC97 subsystem. | |
1501 | */ | |
1502 | if (ac97 && strcmp(codec->name, "AC97") != 0) { | |
12e74f7d LG |
1503 | ret = soc_ac97_dev_register(codec); |
1504 | if (ret < 0) { | |
1505 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
1506 | snd_card_free(codec->card); | |
08c8efe6 | 1507 | mutex_unlock(&codec->mutex); |
12e74f7d LG |
1508 | goto out; |
1509 | } | |
1510 | } | |
db2a4165 FM |
1511 | #endif |
1512 | ||
12e74f7d LG |
1513 | err = snd_soc_dapm_sys_add(socdev->dev); |
1514 | if (err < 0) | |
1515 | printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); | |
1516 | ||
1517 | err = device_create_file(socdev->dev, &dev_attr_codec_reg); | |
1518 | if (err < 0) | |
3ff3f64b | 1519 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); |
08c8efe6 | 1520 | |
6627a653 | 1521 | soc_init_codec_debugfs(codec); |
db2a4165 | 1522 | mutex_unlock(&codec->mutex); |
08c8efe6 MB |
1523 | |
1524 | out: | |
db2a4165 FM |
1525 | return ret; |
1526 | } | |
968a6025 | 1527 | EXPORT_SYMBOL_GPL(snd_soc_init_card); |
db2a4165 FM |
1528 | |
1529 | /** | |
1530 | * snd_soc_free_pcms - free sound card and pcms | |
1531 | * @socdev: the SoC audio device | |
1532 | * | |
1533 | * Frees sound card and pcms associated with the socdev. | |
1534 | * Also unregister the codec if it is an AC97 device. | |
1535 | */ | |
1536 | void snd_soc_free_pcms(struct snd_soc_device *socdev) | |
1537 | { | |
6627a653 | 1538 | struct snd_soc_codec *codec = socdev->card->codec; |
a68660e0 | 1539 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3c4b266f | 1540 | struct snd_soc_dai *codec_dai; |
a68660e0 LG |
1541 | int i; |
1542 | #endif | |
db2a4165 FM |
1543 | |
1544 | mutex_lock(&codec->mutex); | |
6627a653 | 1545 | soc_cleanup_codec_debugfs(codec); |
db2a4165 | 1546 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3ff3f64b | 1547 | for (i = 0; i < codec->num_dai; i++) { |
a68660e0 | 1548 | codec_dai = &codec->dai[i]; |
d2314e0e AN |
1549 | if (codec_dai->ac97_control && codec->ac97 && |
1550 | strcmp(codec->name, "AC97") != 0) { | |
a68660e0 LG |
1551 | soc_ac97_dev_unregister(codec); |
1552 | goto free_card; | |
1553 | } | |
1554 | } | |
1555 | free_card: | |
db2a4165 FM |
1556 | #endif |
1557 | ||
1558 | if (codec->card) | |
1559 | snd_card_free(codec->card); | |
1560 | device_remove_file(socdev->dev, &dev_attr_codec_reg); | |
1561 | mutex_unlock(&codec->mutex); | |
1562 | } | |
1563 | EXPORT_SYMBOL_GPL(snd_soc_free_pcms); | |
1564 | ||
1565 | /** | |
1566 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1567 | * @substream: the pcm substream | |
1568 | * @hw: the hardware parameters | |
1569 | * | |
1570 | * Sets the substream runtime hardware parameters. | |
1571 | */ | |
1572 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1573 | const struct snd_pcm_hardware *hw) | |
1574 | { | |
1575 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1576 | runtime->hw.info = hw->info; | |
1577 | runtime->hw.formats = hw->formats; | |
1578 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1579 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1580 | runtime->hw.periods_min = hw->periods_min; | |
1581 | runtime->hw.periods_max = hw->periods_max; | |
1582 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1583 | runtime->hw.fifo_size = hw->fifo_size; | |
1584 | return 0; | |
1585 | } | |
1586 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1587 | ||
1588 | /** | |
1589 | * snd_soc_cnew - create new control | |
1590 | * @_template: control template | |
1591 | * @data: control private data | |
ac11a2b3 | 1592 | * @long_name: control long name |
db2a4165 FM |
1593 | * |
1594 | * Create a new mixer control from a template control. | |
1595 | * | |
1596 | * Returns 0 for success, else error. | |
1597 | */ | |
1598 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1599 | void *data, char *long_name) | |
1600 | { | |
1601 | struct snd_kcontrol_new template; | |
1602 | ||
1603 | memcpy(&template, _template, sizeof(template)); | |
1604 | if (long_name) | |
1605 | template.name = long_name; | |
db2a4165 FM |
1606 | template.index = 0; |
1607 | ||
1608 | return snd_ctl_new1(&template, data); | |
1609 | } | |
1610 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1611 | ||
3e8e1952 IM |
1612 | /** |
1613 | * snd_soc_add_controls - add an array of controls to a codec. | |
1614 | * Convienience function to add a list of controls. Many codecs were | |
1615 | * duplicating this code. | |
1616 | * | |
1617 | * @codec: codec to add controls to | |
1618 | * @controls: array of controls to add | |
1619 | * @num_controls: number of elements in the array | |
1620 | * | |
1621 | * Return 0 for success, else error. | |
1622 | */ | |
1623 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1624 | const struct snd_kcontrol_new *controls, int num_controls) | |
1625 | { | |
1626 | struct snd_card *card = codec->card; | |
1627 | int err, i; | |
1628 | ||
1629 | for (i = 0; i < num_controls; i++) { | |
1630 | const struct snd_kcontrol_new *control = &controls[i]; | |
1631 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
1632 | if (err < 0) { | |
1633 | dev_err(codec->dev, "%s: Failed to add %s\n", | |
1634 | codec->name, control->name); | |
1635 | return err; | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | return 0; | |
1640 | } | |
1641 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
1642 | ||
db2a4165 FM |
1643 | /** |
1644 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
1645 | * @kcontrol: mixer control | |
1646 | * @uinfo: control element information | |
1647 | * | |
1648 | * Callback to provide information about a double enumerated | |
1649 | * mixer control. | |
1650 | * | |
1651 | * Returns 0 for success. | |
1652 | */ | |
1653 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
1654 | struct snd_ctl_elem_info *uinfo) | |
1655 | { | |
1656 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1657 | ||
1658 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1659 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 1660 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1661 | |
f8ba0b7b JS |
1662 | if (uinfo->value.enumerated.item > e->max - 1) |
1663 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1664 | strcpy(uinfo->value.enumerated.name, |
1665 | e->texts[uinfo->value.enumerated.item]); | |
1666 | return 0; | |
1667 | } | |
1668 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
1669 | ||
1670 | /** | |
1671 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
1672 | * @kcontrol: mixer control | |
ac11a2b3 | 1673 | * @ucontrol: control element information |
db2a4165 FM |
1674 | * |
1675 | * Callback to get the value of a double enumerated mixer. | |
1676 | * | |
1677 | * Returns 0 for success. | |
1678 | */ | |
1679 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
1680 | struct snd_ctl_elem_value *ucontrol) | |
1681 | { | |
1682 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1683 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1684 | unsigned int val, bitmask; |
db2a4165 | 1685 | |
f8ba0b7b | 1686 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
1687 | ; |
1688 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
1689 | ucontrol->value.enumerated.item[0] |
1690 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
1691 | if (e->shift_l != e->shift_r) |
1692 | ucontrol->value.enumerated.item[1] = | |
1693 | (val >> e->shift_r) & (bitmask - 1); | |
1694 | ||
1695 | return 0; | |
1696 | } | |
1697 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
1698 | ||
1699 | /** | |
1700 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
1701 | * @kcontrol: mixer control | |
ac11a2b3 | 1702 | * @ucontrol: control element information |
db2a4165 FM |
1703 | * |
1704 | * Callback to set the value of a double enumerated mixer. | |
1705 | * | |
1706 | * Returns 0 for success. | |
1707 | */ | |
1708 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
1709 | struct snd_ctl_elem_value *ucontrol) | |
1710 | { | |
1711 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1712 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
1713 | unsigned int val; |
1714 | unsigned int mask, bitmask; | |
db2a4165 | 1715 | |
f8ba0b7b | 1716 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 1717 | ; |
f8ba0b7b | 1718 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
1719 | return -EINVAL; |
1720 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
1721 | mask = (bitmask - 1) << e->shift_l; | |
1722 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1723 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
1724 | return -EINVAL; |
1725 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1726 | mask |= (bitmask - 1) << e->shift_r; | |
1727 | } | |
1728 | ||
1729 | return snd_soc_update_bits(codec, e->reg, mask, val); | |
1730 | } | |
1731 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
1732 | ||
2e72f8e3 PU |
1733 | /** |
1734 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
1735 | * @kcontrol: mixer control | |
1736 | * @ucontrol: control element information | |
1737 | * | |
1738 | * Callback to get the value of a double semi enumerated mixer. | |
1739 | * | |
1740 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1741 | * used for handling bitfield coded enumeration for example. | |
1742 | * | |
1743 | * Returns 0 for success. | |
1744 | */ | |
1745 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1746 | struct snd_ctl_elem_value *ucontrol) | |
1747 | { | |
1748 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1749 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1750 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1751 | |
1752 | reg_val = snd_soc_read(codec, e->reg); | |
1753 | val = (reg_val >> e->shift_l) & e->mask; | |
1754 | for (mux = 0; mux < e->max; mux++) { | |
1755 | if (val == e->values[mux]) | |
1756 | break; | |
1757 | } | |
1758 | ucontrol->value.enumerated.item[0] = mux; | |
1759 | if (e->shift_l != e->shift_r) { | |
1760 | val = (reg_val >> e->shift_r) & e->mask; | |
1761 | for (mux = 0; mux < e->max; mux++) { | |
1762 | if (val == e->values[mux]) | |
1763 | break; | |
1764 | } | |
1765 | ucontrol->value.enumerated.item[1] = mux; | |
1766 | } | |
1767 | ||
1768 | return 0; | |
1769 | } | |
1770 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
1771 | ||
1772 | /** | |
1773 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
1774 | * @kcontrol: mixer control | |
1775 | * @ucontrol: control element information | |
1776 | * | |
1777 | * Callback to set the value of a double semi enumerated mixer. | |
1778 | * | |
1779 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1780 | * used for handling bitfield coded enumeration for example. | |
1781 | * | |
1782 | * Returns 0 for success. | |
1783 | */ | |
1784 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1785 | struct snd_ctl_elem_value *ucontrol) | |
1786 | { | |
1787 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1788 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
1789 | unsigned int val; |
1790 | unsigned int mask; | |
2e72f8e3 PU |
1791 | |
1792 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1793 | return -EINVAL; | |
1794 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1795 | mask = e->mask << e->shift_l; | |
1796 | if (e->shift_l != e->shift_r) { | |
1797 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1798 | return -EINVAL; | |
1799 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1800 | mask |= e->mask << e->shift_r; | |
1801 | } | |
1802 | ||
1803 | return snd_soc_update_bits(codec, e->reg, mask, val); | |
1804 | } | |
1805 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
1806 | ||
db2a4165 FM |
1807 | /** |
1808 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
1809 | * @kcontrol: mixer control | |
1810 | * @uinfo: control element information | |
1811 | * | |
1812 | * Callback to provide information about an external enumerated | |
1813 | * single mixer. | |
1814 | * | |
1815 | * Returns 0 for success. | |
1816 | */ | |
1817 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
1818 | struct snd_ctl_elem_info *uinfo) | |
1819 | { | |
1820 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1821 | ||
1822 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1823 | uinfo->count = 1; | |
f8ba0b7b | 1824 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1825 | |
f8ba0b7b JS |
1826 | if (uinfo->value.enumerated.item > e->max - 1) |
1827 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1828 | strcpy(uinfo->value.enumerated.name, |
1829 | e->texts[uinfo->value.enumerated.item]); | |
1830 | return 0; | |
1831 | } | |
1832 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
1833 | ||
1834 | /** | |
1835 | * snd_soc_info_volsw_ext - external single mixer info callback | |
1836 | * @kcontrol: mixer control | |
1837 | * @uinfo: control element information | |
1838 | * | |
1839 | * Callback to provide information about a single external mixer control. | |
1840 | * | |
1841 | * Returns 0 for success. | |
1842 | */ | |
1843 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
1844 | struct snd_ctl_elem_info *uinfo) | |
1845 | { | |
a7a4ac86 PZ |
1846 | int max = kcontrol->private_value; |
1847 | ||
fd5dfad9 | 1848 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1849 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1850 | else | |
1851 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1852 | |
db2a4165 FM |
1853 | uinfo->count = 1; |
1854 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1855 | uinfo->value.integer.max = max; |
db2a4165 FM |
1856 | return 0; |
1857 | } | |
1858 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
1859 | ||
db2a4165 FM |
1860 | /** |
1861 | * snd_soc_info_volsw - single mixer info callback | |
1862 | * @kcontrol: mixer control | |
1863 | * @uinfo: control element information | |
1864 | * | |
1865 | * Callback to provide information about a single mixer control. | |
1866 | * | |
1867 | * Returns 0 for success. | |
1868 | */ | |
1869 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
1870 | struct snd_ctl_elem_info *uinfo) | |
1871 | { | |
4eaa9819 JS |
1872 | struct soc_mixer_control *mc = |
1873 | (struct soc_mixer_control *)kcontrol->private_value; | |
1874 | int max = mc->max; | |
762b8df7 | 1875 | unsigned int shift = mc->shift; |
815ecf8d | 1876 | unsigned int rshift = mc->rshift; |
db2a4165 | 1877 | |
fd5dfad9 | 1878 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1879 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1880 | else | |
1881 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1882 | ||
db2a4165 FM |
1883 | uinfo->count = shift == rshift ? 1 : 2; |
1884 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1885 | uinfo->value.integer.max = max; |
db2a4165 FM |
1886 | return 0; |
1887 | } | |
1888 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
1889 | ||
1890 | /** | |
1891 | * snd_soc_get_volsw - single mixer get callback | |
1892 | * @kcontrol: mixer control | |
ac11a2b3 | 1893 | * @ucontrol: control element information |
db2a4165 FM |
1894 | * |
1895 | * Callback to get the value of a single mixer control. | |
1896 | * | |
1897 | * Returns 0 for success. | |
1898 | */ | |
1899 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
1900 | struct snd_ctl_elem_value *ucontrol) | |
1901 | { | |
4eaa9819 JS |
1902 | struct soc_mixer_control *mc = |
1903 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1904 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1905 | unsigned int reg = mc->reg; |
1906 | unsigned int shift = mc->shift; | |
1907 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1908 | int max = mc->max; |
815ecf8d JS |
1909 | unsigned int mask = (1 << fls(max)) - 1; |
1910 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1911 | |
1912 | ucontrol->value.integer.value[0] = | |
1913 | (snd_soc_read(codec, reg) >> shift) & mask; | |
1914 | if (shift != rshift) | |
1915 | ucontrol->value.integer.value[1] = | |
1916 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
1917 | if (invert) { | |
1918 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1919 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
1920 | if (shift != rshift) |
1921 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1922 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
1923 | } |
1924 | ||
1925 | return 0; | |
1926 | } | |
1927 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
1928 | ||
1929 | /** | |
1930 | * snd_soc_put_volsw - single mixer put callback | |
1931 | * @kcontrol: mixer control | |
ac11a2b3 | 1932 | * @ucontrol: control element information |
db2a4165 FM |
1933 | * |
1934 | * Callback to set the value of a single mixer control. | |
1935 | * | |
1936 | * Returns 0 for success. | |
1937 | */ | |
1938 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
1939 | struct snd_ctl_elem_value *ucontrol) | |
1940 | { | |
4eaa9819 JS |
1941 | struct soc_mixer_control *mc = |
1942 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1943 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1944 | unsigned int reg = mc->reg; |
1945 | unsigned int shift = mc->shift; | |
1946 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1947 | int max = mc->max; |
815ecf8d JS |
1948 | unsigned int mask = (1 << fls(max)) - 1; |
1949 | unsigned int invert = mc->invert; | |
46f5822f | 1950 | unsigned int val, val2, val_mask; |
db2a4165 FM |
1951 | |
1952 | val = (ucontrol->value.integer.value[0] & mask); | |
1953 | if (invert) | |
a7a4ac86 | 1954 | val = max - val; |
db2a4165 FM |
1955 | val_mask = mask << shift; |
1956 | val = val << shift; | |
1957 | if (shift != rshift) { | |
1958 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1959 | if (invert) | |
a7a4ac86 | 1960 | val2 = max - val2; |
db2a4165 FM |
1961 | val_mask |= mask << rshift; |
1962 | val |= val2 << rshift; | |
1963 | } | |
a7a4ac86 | 1964 | return snd_soc_update_bits(codec, reg, val_mask, val); |
db2a4165 FM |
1965 | } |
1966 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
1967 | ||
1968 | /** | |
1969 | * snd_soc_info_volsw_2r - double mixer info callback | |
1970 | * @kcontrol: mixer control | |
1971 | * @uinfo: control element information | |
1972 | * | |
1973 | * Callback to provide information about a double mixer control that | |
1974 | * spans 2 codec registers. | |
1975 | * | |
1976 | * Returns 0 for success. | |
1977 | */ | |
1978 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
1979 | struct snd_ctl_elem_info *uinfo) | |
1980 | { | |
4eaa9819 JS |
1981 | struct soc_mixer_control *mc = |
1982 | (struct soc_mixer_control *)kcontrol->private_value; | |
1983 | int max = mc->max; | |
a7a4ac86 | 1984 | |
fd5dfad9 | 1985 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1986 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1987 | else | |
1988 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1989 | |
db2a4165 FM |
1990 | uinfo->count = 2; |
1991 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1992 | uinfo->value.integer.max = max; |
db2a4165 FM |
1993 | return 0; |
1994 | } | |
1995 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
1996 | ||
1997 | /** | |
1998 | * snd_soc_get_volsw_2r - double mixer get callback | |
1999 | * @kcontrol: mixer control | |
ac11a2b3 | 2000 | * @ucontrol: control element information |
db2a4165 FM |
2001 | * |
2002 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2003 | * | |
2004 | * Returns 0 for success. | |
2005 | */ | |
2006 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2007 | struct snd_ctl_elem_value *ucontrol) | |
2008 | { | |
4eaa9819 JS |
2009 | struct soc_mixer_control *mc = |
2010 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2011 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2012 | unsigned int reg = mc->reg; |
2013 | unsigned int reg2 = mc->rreg; | |
2014 | unsigned int shift = mc->shift; | |
4eaa9819 | 2015 | int max = mc->max; |
46f5822f | 2016 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2017 | unsigned int invert = mc->invert; |
db2a4165 FM |
2018 | |
2019 | ucontrol->value.integer.value[0] = | |
2020 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2021 | ucontrol->value.integer.value[1] = | |
2022 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2023 | if (invert) { | |
2024 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2025 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2026 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2027 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2028 | } |
2029 | ||
2030 | return 0; | |
2031 | } | |
2032 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2033 | ||
2034 | /** | |
2035 | * snd_soc_put_volsw_2r - double mixer set callback | |
2036 | * @kcontrol: mixer control | |
ac11a2b3 | 2037 | * @ucontrol: control element information |
db2a4165 FM |
2038 | * |
2039 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2040 | * | |
2041 | * Returns 0 for success. | |
2042 | */ | |
2043 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2044 | struct snd_ctl_elem_value *ucontrol) | |
2045 | { | |
4eaa9819 JS |
2046 | struct soc_mixer_control *mc = |
2047 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2048 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2049 | unsigned int reg = mc->reg; |
2050 | unsigned int reg2 = mc->rreg; | |
2051 | unsigned int shift = mc->shift; | |
4eaa9819 | 2052 | int max = mc->max; |
815ecf8d JS |
2053 | unsigned int mask = (1 << fls(max)) - 1; |
2054 | unsigned int invert = mc->invert; | |
db2a4165 | 2055 | int err; |
46f5822f | 2056 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2057 | |
2058 | val_mask = mask << shift; | |
2059 | val = (ucontrol->value.integer.value[0] & mask); | |
2060 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2061 | ||
2062 | if (invert) { | |
a7a4ac86 PZ |
2063 | val = max - val; |
2064 | val2 = max - val2; | |
db2a4165 FM |
2065 | } |
2066 | ||
2067 | val = val << shift; | |
2068 | val2 = val2 << shift; | |
2069 | ||
3ff3f64b MB |
2070 | err = snd_soc_update_bits(codec, reg, val_mask, val); |
2071 | if (err < 0) | |
db2a4165 FM |
2072 | return err; |
2073 | ||
2074 | err = snd_soc_update_bits(codec, reg2, val_mask, val2); | |
2075 | return err; | |
2076 | } | |
2077 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2078 | ||
e13ac2e9 MB |
2079 | /** |
2080 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2081 | * @kcontrol: mixer control | |
2082 | * @uinfo: control element information | |
2083 | * | |
2084 | * Callback to provide information about a signed mixer control. | |
2085 | * | |
2086 | * Returns 0 for success. | |
2087 | */ | |
2088 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2089 | struct snd_ctl_elem_info *uinfo) | |
2090 | { | |
4eaa9819 JS |
2091 | struct soc_mixer_control *mc = |
2092 | (struct soc_mixer_control *)kcontrol->private_value; | |
2093 | int max = mc->max; | |
2094 | int min = mc->min; | |
e13ac2e9 MB |
2095 | |
2096 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2097 | uinfo->count = 2; | |
2098 | uinfo->value.integer.min = 0; | |
2099 | uinfo->value.integer.max = max-min; | |
2100 | return 0; | |
2101 | } | |
2102 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2103 | ||
2104 | /** | |
2105 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2106 | * @kcontrol: mixer control | |
ac11a2b3 | 2107 | * @ucontrol: control element information |
e13ac2e9 MB |
2108 | * |
2109 | * Callback to get the value of a signed mixer control. | |
2110 | * | |
2111 | * Returns 0 for success. | |
2112 | */ | |
2113 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2114 | struct snd_ctl_elem_value *ucontrol) | |
2115 | { | |
4eaa9819 JS |
2116 | struct soc_mixer_control *mc = |
2117 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2118 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2119 | unsigned int reg = mc->reg; |
4eaa9819 | 2120 | int min = mc->min; |
e13ac2e9 MB |
2121 | int val = snd_soc_read(codec, reg); |
2122 | ||
2123 | ucontrol->value.integer.value[0] = | |
2124 | ((signed char)(val & 0xff))-min; | |
2125 | ucontrol->value.integer.value[1] = | |
2126 | ((signed char)((val >> 8) & 0xff))-min; | |
2127 | return 0; | |
2128 | } | |
2129 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2130 | ||
2131 | /** | |
2132 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2133 | * @kcontrol: mixer control | |
ac11a2b3 | 2134 | * @ucontrol: control element information |
e13ac2e9 MB |
2135 | * |
2136 | * Callback to set the value of a signed mixer control. | |
2137 | * | |
2138 | * Returns 0 for success. | |
2139 | */ | |
2140 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2141 | struct snd_ctl_elem_value *ucontrol) | |
2142 | { | |
4eaa9819 JS |
2143 | struct soc_mixer_control *mc = |
2144 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2145 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2146 | unsigned int reg = mc->reg; |
4eaa9819 | 2147 | int min = mc->min; |
46f5822f | 2148 | unsigned int val; |
e13ac2e9 MB |
2149 | |
2150 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2151 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2152 | ||
2153 | return snd_soc_update_bits(codec, reg, 0xffff, val); | |
2154 | } | |
2155 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2156 | ||
8c6529db LG |
2157 | /** |
2158 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2159 | * @dai: DAI | |
2160 | * @clk_id: DAI specific clock ID | |
2161 | * @freq: new clock frequency in Hz | |
2162 | * @dir: new clock direction - input/output. | |
2163 | * | |
2164 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2165 | */ | |
2166 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2167 | unsigned int freq, int dir) | |
2168 | { | |
3f1a4d82 | 2169 | if (dai->ops && dai->ops->set_sysclk) |
6335d055 | 2170 | return dai->ops->set_sysclk(dai, clk_id, freq, dir); |
8c6529db LG |
2171 | else |
2172 | return -EINVAL; | |
2173 | } | |
2174 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2175 | ||
2176 | /** | |
2177 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2178 | * @dai: DAI | |
ac11a2b3 | 2179 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2180 | * @div: new clock divisor. |
2181 | * | |
2182 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2183 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2184 | * and frame clocks as low as possible to save system power. | |
2185 | */ | |
2186 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2187 | int div_id, int div) | |
2188 | { | |
3f1a4d82 | 2189 | if (dai->ops && dai->ops->set_clkdiv) |
6335d055 | 2190 | return dai->ops->set_clkdiv(dai, div_id, div); |
8c6529db LG |
2191 | else |
2192 | return -EINVAL; | |
2193 | } | |
2194 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2195 | ||
2196 | /** | |
2197 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2198 | * @dai: DAI | |
2199 | * @pll_id: DAI specific PLL ID | |
2200 | * @freq_in: PLL input clock frequency in Hz | |
2201 | * @freq_out: requested PLL output clock frequency in Hz | |
2202 | * | |
2203 | * Configures and enables PLL to generate output clock based on input clock. | |
2204 | */ | |
2205 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, | |
2206 | int pll_id, unsigned int freq_in, unsigned int freq_out) | |
2207 | { | |
3f1a4d82 | 2208 | if (dai->ops && dai->ops->set_pll) |
6335d055 | 2209 | return dai->ops->set_pll(dai, pll_id, freq_in, freq_out); |
8c6529db LG |
2210 | else |
2211 | return -EINVAL; | |
2212 | } | |
2213 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2214 | ||
2215 | /** | |
2216 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2217 | * @dai: DAI | |
8c6529db LG |
2218 | * @fmt: SND_SOC_DAIFMT_ format value. |
2219 | * | |
2220 | * Configures the DAI hardware format and clocking. | |
2221 | */ | |
2222 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2223 | { | |
3f1a4d82 | 2224 | if (dai->ops && dai->ops->set_fmt) |
6335d055 | 2225 | return dai->ops->set_fmt(dai, fmt); |
8c6529db LG |
2226 | else |
2227 | return -EINVAL; | |
2228 | } | |
2229 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2230 | ||
2231 | /** | |
2232 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2233 | * @dai: DAI | |
a5479e38 DR |
2234 | * @tx_mask: bitmask representing active TX slots. |
2235 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2236 | * @slots: Number of slots in use. |
a5479e38 | 2237 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2238 | * |
2239 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2240 | * specific. | |
2241 | */ | |
2242 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2243 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2244 | { |
3f1a4d82 | 2245 | if (dai->ops && dai->ops->set_tdm_slot) |
a5479e38 DR |
2246 | return dai->ops->set_tdm_slot(dai, tx_mask, rx_mask, |
2247 | slots, slot_width); | |
8c6529db LG |
2248 | else |
2249 | return -EINVAL; | |
2250 | } | |
2251 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2252 | ||
2253 | /** | |
2254 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2255 | * @dai: DAI | |
2256 | * @tristate: tristate enable | |
2257 | * | |
2258 | * Tristates the DAI so that others can use it. | |
2259 | */ | |
2260 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2261 | { | |
3f1a4d82 | 2262 | if (dai->ops && dai->ops->set_tristate) |
6335d055 | 2263 | return dai->ops->set_tristate(dai, tristate); |
8c6529db LG |
2264 | else |
2265 | return -EINVAL; | |
2266 | } | |
2267 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2268 | ||
2269 | /** | |
2270 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2271 | * @dai: DAI | |
2272 | * @mute: mute enable | |
2273 | * | |
2274 | * Mutes the DAI DAC. | |
2275 | */ | |
2276 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2277 | { | |
3f1a4d82 | 2278 | if (dai->ops && dai->ops->digital_mute) |
6335d055 | 2279 | return dai->ops->digital_mute(dai, mute); |
8c6529db LG |
2280 | else |
2281 | return -EINVAL; | |
2282 | } | |
2283 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2284 | ||
c5af3a2e MB |
2285 | /** |
2286 | * snd_soc_register_card - Register a card with the ASoC core | |
2287 | * | |
ac11a2b3 | 2288 | * @card: Card to register |
c5af3a2e MB |
2289 | * |
2290 | * Note that currently this is an internal only function: it will be | |
2291 | * exposed to machine drivers after further backporting of ASoC v2 | |
2292 | * registration APIs. | |
2293 | */ | |
2294 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2295 | { | |
2296 | if (!card->name || !card->dev) | |
2297 | return -EINVAL; | |
2298 | ||
2299 | INIT_LIST_HEAD(&card->list); | |
2300 | card->instantiated = 0; | |
2301 | ||
2302 | mutex_lock(&client_mutex); | |
2303 | list_add(&card->list, &card_list); | |
435c5e25 | 2304 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2305 | mutex_unlock(&client_mutex); |
2306 | ||
2307 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2308 | ||
2309 | return 0; | |
2310 | } | |
2311 | ||
2312 | /** | |
2313 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2314 | * | |
ac11a2b3 | 2315 | * @card: Card to unregister |
c5af3a2e MB |
2316 | * |
2317 | * Note that currently this is an internal only function: it will be | |
2318 | * exposed to machine drivers after further backporting of ASoC v2 | |
2319 | * registration APIs. | |
2320 | */ | |
2321 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2322 | { | |
2323 | mutex_lock(&client_mutex); | |
2324 | list_del(&card->list); | |
2325 | mutex_unlock(&client_mutex); | |
2326 | ||
2327 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); | |
2328 | ||
2329 | return 0; | |
2330 | } | |
2331 | ||
6335d055 EM |
2332 | static struct snd_soc_dai_ops null_dai_ops = { |
2333 | }; | |
2334 | ||
9115171a MB |
2335 | /** |
2336 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2337 | * | |
ac11a2b3 | 2338 | * @dai: DAI to register |
9115171a MB |
2339 | */ |
2340 | int snd_soc_register_dai(struct snd_soc_dai *dai) | |
2341 | { | |
2342 | if (!dai->name) | |
2343 | return -EINVAL; | |
2344 | ||
2345 | /* The device should become mandatory over time */ | |
2346 | if (!dai->dev) | |
2347 | printk(KERN_WARNING "No device for DAI %s\n", dai->name); | |
2348 | ||
6335d055 EM |
2349 | if (!dai->ops) |
2350 | dai->ops = &null_dai_ops; | |
2351 | ||
9115171a MB |
2352 | INIT_LIST_HEAD(&dai->list); |
2353 | ||
2354 | mutex_lock(&client_mutex); | |
2355 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2356 | snd_soc_instantiate_cards(); |
9115171a MB |
2357 | mutex_unlock(&client_mutex); |
2358 | ||
2359 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2360 | ||
2361 | return 0; | |
2362 | } | |
2363 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2364 | ||
2365 | /** | |
2366 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2367 | * | |
ac11a2b3 | 2368 | * @dai: DAI to unregister |
9115171a MB |
2369 | */ |
2370 | void snd_soc_unregister_dai(struct snd_soc_dai *dai) | |
2371 | { | |
2372 | mutex_lock(&client_mutex); | |
2373 | list_del(&dai->list); | |
2374 | mutex_unlock(&client_mutex); | |
2375 | ||
2376 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
2377 | } | |
2378 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
2379 | ||
2380 | /** | |
2381 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
2382 | * | |
ac11a2b3 MB |
2383 | * @dai: Array of DAIs to register |
2384 | * @count: Number of DAIs | |
9115171a MB |
2385 | */ |
2386 | int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count) | |
2387 | { | |
2388 | int i, ret; | |
2389 | ||
2390 | for (i = 0; i < count; i++) { | |
2391 | ret = snd_soc_register_dai(&dai[i]); | |
2392 | if (ret != 0) | |
2393 | goto err; | |
2394 | } | |
2395 | ||
2396 | return 0; | |
2397 | ||
2398 | err: | |
2399 | for (i--; i >= 0; i--) | |
2400 | snd_soc_unregister_dai(&dai[i]); | |
2401 | ||
2402 | return ret; | |
2403 | } | |
2404 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
2405 | ||
2406 | /** | |
2407 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
2408 | * | |
ac11a2b3 MB |
2409 | * @dai: Array of DAIs to unregister |
2410 | * @count: Number of DAIs | |
9115171a MB |
2411 | */ |
2412 | void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count) | |
2413 | { | |
2414 | int i; | |
2415 | ||
2416 | for (i = 0; i < count; i++) | |
2417 | snd_soc_unregister_dai(&dai[i]); | |
2418 | } | |
2419 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
2420 | ||
12a48a8c MB |
2421 | /** |
2422 | * snd_soc_register_platform - Register a platform with the ASoC core | |
2423 | * | |
ac11a2b3 | 2424 | * @platform: platform to register |
12a48a8c MB |
2425 | */ |
2426 | int snd_soc_register_platform(struct snd_soc_platform *platform) | |
2427 | { | |
2428 | if (!platform->name) | |
2429 | return -EINVAL; | |
2430 | ||
2431 | INIT_LIST_HEAD(&platform->list); | |
2432 | ||
2433 | mutex_lock(&client_mutex); | |
2434 | list_add(&platform->list, &platform_list); | |
435c5e25 | 2435 | snd_soc_instantiate_cards(); |
12a48a8c MB |
2436 | mutex_unlock(&client_mutex); |
2437 | ||
2438 | pr_debug("Registered platform '%s'\n", platform->name); | |
2439 | ||
2440 | return 0; | |
2441 | } | |
2442 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2443 | ||
2444 | /** | |
2445 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2446 | * | |
ac11a2b3 | 2447 | * @platform: platform to unregister |
12a48a8c MB |
2448 | */ |
2449 | void snd_soc_unregister_platform(struct snd_soc_platform *platform) | |
2450 | { | |
2451 | mutex_lock(&client_mutex); | |
2452 | list_del(&platform->list); | |
2453 | mutex_unlock(&client_mutex); | |
2454 | ||
2455 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
2456 | } | |
2457 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2458 | ||
151ab22c MB |
2459 | static u64 codec_format_map[] = { |
2460 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2461 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2462 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2463 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2464 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2465 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2466 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2467 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2468 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2469 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2470 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2471 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2472 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2473 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2474 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2475 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2476 | }; | |
2477 | ||
2478 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2479 | * the endianness of the data but we're using the CPU format | |
2480 | * definitions which do need to include endianness so we ensure that | |
2481 | * codec DAIs always have both big and little endian variants set. | |
2482 | */ | |
2483 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2484 | { | |
2485 | int i; | |
2486 | ||
2487 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2488 | if (stream->formats & codec_format_map[i]) | |
2489 | stream->formats |= codec_format_map[i]; | |
2490 | } | |
2491 | ||
0d0cf00a MB |
2492 | /** |
2493 | * snd_soc_register_codec - Register a codec with the ASoC core | |
2494 | * | |
ac11a2b3 | 2495 | * @codec: codec to register |
0d0cf00a MB |
2496 | */ |
2497 | int snd_soc_register_codec(struct snd_soc_codec *codec) | |
2498 | { | |
151ab22c MB |
2499 | int i; |
2500 | ||
0d0cf00a MB |
2501 | if (!codec->name) |
2502 | return -EINVAL; | |
2503 | ||
2504 | /* The device should become mandatory over time */ | |
2505 | if (!codec->dev) | |
2506 | printk(KERN_WARNING "No device for codec %s\n", codec->name); | |
2507 | ||
2508 | INIT_LIST_HEAD(&codec->list); | |
2509 | ||
151ab22c MB |
2510 | for (i = 0; i < codec->num_dai; i++) { |
2511 | fixup_codec_formats(&codec->dai[i].playback); | |
2512 | fixup_codec_formats(&codec->dai[i].capture); | |
2513 | } | |
2514 | ||
0d0cf00a MB |
2515 | mutex_lock(&client_mutex); |
2516 | list_add(&codec->list, &codec_list); | |
2517 | snd_soc_instantiate_cards(); | |
2518 | mutex_unlock(&client_mutex); | |
2519 | ||
2520 | pr_debug("Registered codec '%s'\n", codec->name); | |
2521 | ||
2522 | return 0; | |
2523 | } | |
2524 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
2525 | ||
2526 | /** | |
2527 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
2528 | * | |
ac11a2b3 | 2529 | * @codec: codec to unregister |
0d0cf00a MB |
2530 | */ |
2531 | void snd_soc_unregister_codec(struct snd_soc_codec *codec) | |
2532 | { | |
2533 | mutex_lock(&client_mutex); | |
2534 | list_del(&codec->list); | |
2535 | mutex_unlock(&client_mutex); | |
2536 | ||
2537 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
2538 | } | |
2539 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
2540 | ||
c9b3a40f | 2541 | static int __init snd_soc_init(void) |
db2a4165 | 2542 | { |
384c89e2 MB |
2543 | #ifdef CONFIG_DEBUG_FS |
2544 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
2545 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
2546 | printk(KERN_WARNING | |
2547 | "ASoC: Failed to create debugfs directory\n"); | |
2548 | debugfs_root = NULL; | |
2549 | } | |
2550 | #endif | |
2551 | ||
db2a4165 FM |
2552 | return platform_driver_register(&soc_driver); |
2553 | } | |
2554 | ||
7d8c16a6 | 2555 | static void __exit snd_soc_exit(void) |
db2a4165 | 2556 | { |
384c89e2 MB |
2557 | #ifdef CONFIG_DEBUG_FS |
2558 | debugfs_remove_recursive(debugfs_root); | |
2559 | #endif | |
3ff3f64b | 2560 | platform_driver_unregister(&soc_driver); |
db2a4165 FM |
2561 | } |
2562 | ||
2563 | module_init(snd_soc_init); | |
2564 | module_exit(snd_soc_exit); | |
2565 | ||
2566 | /* Module information */ | |
d331124d | 2567 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
2568 | MODULE_DESCRIPTION("ALSA SoC Core"); |
2569 | MODULE_LICENSE("GPL"); | |
8b45a209 | 2570 | MODULE_ALIAS("platform:soc-audio"); |