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 | 39 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
40 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
41 | ||
384c89e2 MB |
42 | #ifdef CONFIG_DEBUG_FS |
43 | static struct dentry *debugfs_root; | |
44 | #endif | |
45 | ||
c5af3a2e MB |
46 | static DEFINE_MUTEX(client_mutex); |
47 | static LIST_HEAD(card_list); | |
9115171a | 48 | static LIST_HEAD(dai_list); |
12a48a8c | 49 | static LIST_HEAD(platform_list); |
0d0cf00a | 50 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
51 | |
52 | static int snd_soc_register_card(struct snd_soc_card *card); | |
53 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
54 | ||
db2a4165 FM |
55 | /* |
56 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
57 | * It can be used to eliminate pops between different playback streams, e.g. | |
58 | * between two audio tracks. | |
59 | */ | |
60 | static int pmdown_time = 5000; | |
61 | module_param(pmdown_time, int, 0); | |
62 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
63 | ||
965ac42c LG |
64 | /* |
65 | * This function forces any delayed work to be queued and run. | |
66 | */ | |
67 | static int run_delayed_work(struct delayed_work *dwork) | |
68 | { | |
69 | int ret; | |
70 | ||
71 | /* cancel any work waiting to be queued. */ | |
72 | ret = cancel_delayed_work(dwork); | |
73 | ||
74 | /* if there was any work waiting then we run it now and | |
75 | * wait for it's completion */ | |
76 | if (ret) { | |
77 | schedule_delayed_work(dwork, 0); | |
78 | flush_scheduled_work(); | |
79 | } | |
80 | return ret; | |
81 | } | |
82 | ||
2624d5fa MB |
83 | /* codec register dump */ |
84 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
85 | { | |
86 | int i, step = 1, count = 0; | |
87 | ||
88 | if (!codec->reg_cache_size) | |
89 | return 0; | |
90 | ||
91 | if (codec->reg_cache_step) | |
92 | step = codec->reg_cache_step; | |
93 | ||
94 | count += sprintf(buf, "%s registers\n", codec->name); | |
95 | for (i = 0; i < codec->reg_cache_size; i += step) { | |
96 | if (codec->readable_register && !codec->readable_register(i)) | |
97 | continue; | |
98 | ||
99 | count += sprintf(buf + count, "%2x: ", i); | |
100 | if (count >= PAGE_SIZE - 1) | |
101 | break; | |
102 | ||
103 | if (codec->display_register) | |
104 | count += codec->display_register(codec, buf + count, | |
105 | PAGE_SIZE - count, i); | |
106 | else | |
107 | count += snprintf(buf + count, PAGE_SIZE - count, | |
108 | "%4x", codec->read(codec, i)); | |
109 | ||
110 | if (count >= PAGE_SIZE - 1) | |
111 | break; | |
112 | ||
113 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
114 | if (count >= PAGE_SIZE - 1) | |
115 | break; | |
116 | } | |
117 | ||
118 | /* Truncate count; min() would cause a warning */ | |
119 | if (count >= PAGE_SIZE) | |
120 | count = PAGE_SIZE - 1; | |
121 | ||
122 | return count; | |
123 | } | |
124 | static ssize_t codec_reg_show(struct device *dev, | |
125 | struct device_attribute *attr, char *buf) | |
126 | { | |
127 | struct snd_soc_device *devdata = dev_get_drvdata(dev); | |
128 | return soc_codec_reg_show(devdata->card->codec, buf); | |
129 | } | |
130 | ||
131 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
132 | ||
133 | #ifdef CONFIG_DEBUG_FS | |
134 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
135 | { | |
136 | file->private_data = inode->i_private; | |
137 | return 0; | |
138 | } | |
139 | ||
140 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
141 | size_t count, loff_t *ppos) | |
142 | { | |
143 | ssize_t ret; | |
144 | struct snd_soc_codec *codec = file->private_data; | |
145 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
146 | if (!buf) | |
147 | return -ENOMEM; | |
148 | ret = soc_codec_reg_show(codec, buf); | |
149 | if (ret >= 0) | |
150 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
151 | kfree(buf); | |
152 | return ret; | |
153 | } | |
154 | ||
155 | static ssize_t codec_reg_write_file(struct file *file, | |
156 | const char __user *user_buf, size_t count, loff_t *ppos) | |
157 | { | |
158 | char buf[32]; | |
159 | int buf_size; | |
160 | char *start = buf; | |
161 | unsigned long reg, value; | |
162 | int step = 1; | |
163 | struct snd_soc_codec *codec = file->private_data; | |
164 | ||
165 | buf_size = min(count, (sizeof(buf)-1)); | |
166 | if (copy_from_user(buf, user_buf, buf_size)) | |
167 | return -EFAULT; | |
168 | buf[buf_size] = 0; | |
169 | ||
170 | if (codec->reg_cache_step) | |
171 | step = codec->reg_cache_step; | |
172 | ||
173 | while (*start == ' ') | |
174 | start++; | |
175 | reg = simple_strtoul(start, &start, 16); | |
176 | if ((reg >= codec->reg_cache_size) || (reg % step)) | |
177 | return -EINVAL; | |
178 | while (*start == ' ') | |
179 | start++; | |
180 | if (strict_strtoul(start, 16, &value)) | |
181 | return -EINVAL; | |
182 | codec->write(codec, reg, value); | |
183 | return buf_size; | |
184 | } | |
185 | ||
186 | static const struct file_operations codec_reg_fops = { | |
187 | .open = codec_reg_open_file, | |
188 | .read = codec_reg_read_file, | |
189 | .write = codec_reg_write_file, | |
190 | }; | |
191 | ||
192 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
193 | { | |
194 | char codec_root[128]; | |
195 | ||
196 | if (codec->dev) | |
197 | snprintf(codec_root, sizeof(codec_root), | |
198 | "%s.%s", codec->name, dev_name(codec->dev)); | |
199 | else | |
200 | snprintf(codec_root, sizeof(codec_root), | |
201 | "%s", codec->name); | |
202 | ||
203 | codec->debugfs_codec_root = debugfs_create_dir(codec_root, | |
204 | debugfs_root); | |
205 | if (!codec->debugfs_codec_root) { | |
206 | printk(KERN_WARNING | |
207 | "ASoC: Failed to create codec debugfs directory\n"); | |
208 | return; | |
209 | } | |
210 | ||
211 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
212 | codec->debugfs_codec_root, | |
213 | codec, &codec_reg_fops); | |
214 | if (!codec->debugfs_reg) | |
215 | printk(KERN_WARNING | |
216 | "ASoC: Failed to create codec register debugfs file\n"); | |
217 | ||
218 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744, | |
219 | codec->debugfs_codec_root, | |
220 | &codec->pop_time); | |
221 | if (!codec->debugfs_pop_time) | |
222 | printk(KERN_WARNING | |
223 | "Failed to create pop time debugfs file\n"); | |
224 | ||
225 | codec->debugfs_dapm = debugfs_create_dir("dapm", | |
226 | codec->debugfs_codec_root); | |
227 | if (!codec->debugfs_dapm) | |
228 | printk(KERN_WARNING | |
229 | "Failed to create DAPM debugfs directory\n"); | |
230 | ||
231 | snd_soc_dapm_debugfs_init(codec); | |
232 | } | |
233 | ||
234 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
235 | { | |
236 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
237 | } | |
238 | ||
239 | #else | |
240 | ||
241 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
242 | { | |
243 | } | |
244 | ||
245 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
246 | { | |
247 | } | |
248 | #endif | |
249 | ||
db2a4165 FM |
250 | #ifdef CONFIG_SND_SOC_AC97_BUS |
251 | /* unregister ac97 codec */ | |
252 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
253 | { | |
254 | if (codec->ac97->dev.bus) | |
255 | device_unregister(&codec->ac97->dev); | |
256 | return 0; | |
257 | } | |
258 | ||
259 | /* stop no dev release warning */ | |
260 | static void soc_ac97_device_release(struct device *dev){} | |
261 | ||
262 | /* register ac97 codec to bus */ | |
263 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
264 | { | |
265 | int err; | |
266 | ||
267 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 268 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
269 | codec->ac97->dev.release = soc_ac97_device_release; |
270 | ||
bb072bf0 KS |
271 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
272 | codec->card->number, 0, codec->name); | |
db2a4165 FM |
273 | err = device_register(&codec->ac97->dev); |
274 | if (err < 0) { | |
275 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
276 | codec->ac97->dev.bus = NULL; | |
277 | return err; | |
278 | } | |
279 | return 0; | |
280 | } | |
281 | #endif | |
282 | ||
06f409d7 MB |
283 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
284 | { | |
285 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
286 | struct snd_soc_device *socdev = rtd->socdev; | |
287 | struct snd_soc_card *card = socdev->card; | |
288 | struct snd_soc_dai_link *machine = rtd->dai; | |
289 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; | |
290 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
291 | int ret; | |
292 | ||
293 | if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates || | |
294 | machine->symmetric_rates) { | |
295 | dev_dbg(card->dev, "Symmetry forces %dHz rate\n", | |
296 | machine->rate); | |
297 | ||
298 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
299 | SNDRV_PCM_HW_PARAM_RATE, | |
300 | machine->rate, | |
301 | machine->rate); | |
302 | if (ret < 0) { | |
303 | dev_err(card->dev, | |
304 | "Unable to apply rate symmetry constraint: %d\n", ret); | |
305 | return ret; | |
306 | } | |
307 | } | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
db2a4165 FM |
312 | /* |
313 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
314 | * then initialized and any private data can be allocated. This also calls | |
315 | * startup for the cpu DAI, platform, machine and codec DAI. | |
316 | */ | |
317 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
318 | { | |
319 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
320 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 321 | struct snd_soc_card *card = socdev->card; |
db2a4165 | 322 | struct snd_pcm_runtime *runtime = substream->runtime; |
cb666e5b | 323 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 324 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
325 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
326 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
327 | int ret = 0; |
328 | ||
329 | mutex_lock(&pcm_mutex); | |
330 | ||
331 | /* startup the audio subsystem */ | |
6335d055 EM |
332 | if (cpu_dai->ops->startup) { |
333 | ret = cpu_dai->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
334 | if (ret < 0) { |
335 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 336 | cpu_dai->name); |
db2a4165 FM |
337 | goto out; |
338 | } | |
339 | } | |
340 | ||
341 | if (platform->pcm_ops->open) { | |
342 | ret = platform->pcm_ops->open(substream); | |
343 | if (ret < 0) { | |
344 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
345 | goto platform_err; | |
346 | } | |
347 | } | |
348 | ||
6335d055 EM |
349 | if (codec_dai->ops->startup) { |
350 | ret = codec_dai->ops->startup(substream, codec_dai); | |
db2a4165 | 351 | if (ret < 0) { |
cb666e5b LG |
352 | printk(KERN_ERR "asoc: can't open codec %s\n", |
353 | codec_dai->name); | |
354 | goto codec_dai_err; | |
db2a4165 FM |
355 | } |
356 | } | |
357 | ||
cb666e5b LG |
358 | if (machine->ops && machine->ops->startup) { |
359 | ret = machine->ops->startup(substream); | |
db2a4165 | 360 | if (ret < 0) { |
cb666e5b LG |
361 | printk(KERN_ERR "asoc: %s startup failed\n", machine->name); |
362 | goto machine_err; | |
db2a4165 FM |
363 | } |
364 | } | |
365 | ||
db2a4165 FM |
366 | /* Check that the codec and cpu DAI's are compatible */ |
367 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
368 | runtime->hw.rate_min = | |
3ff3f64b MB |
369 | max(codec_dai->playback.rate_min, |
370 | cpu_dai->playback.rate_min); | |
db2a4165 | 371 | runtime->hw.rate_max = |
3ff3f64b MB |
372 | min(codec_dai->playback.rate_max, |
373 | cpu_dai->playback.rate_max); | |
db2a4165 | 374 | runtime->hw.channels_min = |
cb666e5b LG |
375 | max(codec_dai->playback.channels_min, |
376 | cpu_dai->playback.channels_min); | |
db2a4165 | 377 | runtime->hw.channels_max = |
cb666e5b LG |
378 | min(codec_dai->playback.channels_max, |
379 | cpu_dai->playback.channels_max); | |
380 | runtime->hw.formats = | |
381 | codec_dai->playback.formats & cpu_dai->playback.formats; | |
382 | runtime->hw.rates = | |
383 | codec_dai->playback.rates & cpu_dai->playback.rates; | |
db2a4165 FM |
384 | } else { |
385 | runtime->hw.rate_min = | |
3ff3f64b MB |
386 | max(codec_dai->capture.rate_min, |
387 | cpu_dai->capture.rate_min); | |
db2a4165 | 388 | runtime->hw.rate_max = |
3ff3f64b MB |
389 | min(codec_dai->capture.rate_max, |
390 | cpu_dai->capture.rate_max); | |
db2a4165 | 391 | runtime->hw.channels_min = |
cb666e5b LG |
392 | max(codec_dai->capture.channels_min, |
393 | cpu_dai->capture.channels_min); | |
db2a4165 | 394 | runtime->hw.channels_max = |
cb666e5b LG |
395 | min(codec_dai->capture.channels_max, |
396 | cpu_dai->capture.channels_max); | |
397 | runtime->hw.formats = | |
398 | codec_dai->capture.formats & cpu_dai->capture.formats; | |
399 | runtime->hw.rates = | |
400 | codec_dai->capture.rates & cpu_dai->capture.rates; | |
db2a4165 FM |
401 | } |
402 | ||
403 | snd_pcm_limit_hw_rates(runtime); | |
404 | if (!runtime->hw.rates) { | |
405 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b LG |
406 | codec_dai->name, cpu_dai->name); |
407 | goto machine_err; | |
db2a4165 FM |
408 | } |
409 | if (!runtime->hw.formats) { | |
410 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b LG |
411 | codec_dai->name, cpu_dai->name); |
412 | goto machine_err; | |
db2a4165 FM |
413 | } |
414 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
415 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
cb666e5b LG |
416 | codec_dai->name, cpu_dai->name); |
417 | goto machine_err; | |
db2a4165 FM |
418 | } |
419 | ||
06f409d7 MB |
420 | /* Symmetry only applies if we've already got an active stream. */ |
421 | if (cpu_dai->active || codec_dai->active) { | |
422 | ret = soc_pcm_apply_symmetry(substream); | |
423 | if (ret != 0) | |
424 | goto machine_err; | |
425 | } | |
426 | ||
f24368c2 MB |
427 | pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); |
428 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); | |
429 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
430 | runtime->hw.channels_max); | |
431 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
432 | runtime->hw.rate_max); | |
db2a4165 | 433 | |
db2a4165 | 434 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
cb666e5b | 435 | cpu_dai->playback.active = codec_dai->playback.active = 1; |
db2a4165 | 436 | else |
cb666e5b LG |
437 | cpu_dai->capture.active = codec_dai->capture.active = 1; |
438 | cpu_dai->active = codec_dai->active = 1; | |
439 | cpu_dai->runtime = runtime; | |
6627a653 | 440 | card->codec->active++; |
db2a4165 FM |
441 | mutex_unlock(&pcm_mutex); |
442 | return 0; | |
443 | ||
cb666e5b | 444 | machine_err: |
db2a4165 FM |
445 | if (machine->ops && machine->ops->shutdown) |
446 | machine->ops->shutdown(substream); | |
447 | ||
cb666e5b | 448 | codec_dai_err: |
db2a4165 FM |
449 | if (platform->pcm_ops->close) |
450 | platform->pcm_ops->close(substream); | |
451 | ||
452 | platform_err: | |
6335d055 EM |
453 | if (cpu_dai->ops->shutdown) |
454 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
455 | out: |
456 | mutex_unlock(&pcm_mutex); | |
457 | return ret; | |
458 | } | |
459 | ||
460 | /* | |
3a4fa0a2 | 461 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
462 | * This is to ensure there are no pops or clicks in between any music tracks |
463 | * due to DAPM power cycling. | |
464 | */ | |
4484bb2e | 465 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 466 | { |
6308419a MB |
467 | struct snd_soc_card *card = container_of(work, struct snd_soc_card, |
468 | delayed_work.work); | |
6627a653 | 469 | struct snd_soc_codec *codec = card->codec; |
3c4b266f | 470 | struct snd_soc_dai *codec_dai; |
db2a4165 FM |
471 | int i; |
472 | ||
473 | mutex_lock(&pcm_mutex); | |
3ff3f64b | 474 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
475 | codec_dai = &codec->dai[i]; |
476 | ||
f24368c2 MB |
477 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", |
478 | codec_dai->playback.stream_name, | |
479 | codec_dai->playback.active ? "active" : "inactive", | |
480 | codec_dai->pop_wait ? "yes" : "no"); | |
db2a4165 FM |
481 | |
482 | /* are we waiting on this codec DAI stream */ | |
483 | if (codec_dai->pop_wait == 1) { | |
db2a4165 | 484 | codec_dai->pop_wait = 0; |
0b4d221b LG |
485 | snd_soc_dapm_stream_event(codec, |
486 | codec_dai->playback.stream_name, | |
db2a4165 | 487 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
488 | } |
489 | } | |
490 | mutex_unlock(&pcm_mutex); | |
491 | } | |
492 | ||
493 | /* | |
494 | * Called by ALSA when a PCM substream is closed. Private data can be | |
495 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
496 | * shutdown. | |
497 | */ | |
498 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
499 | { | |
500 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
501 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 502 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 503 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 504 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
505 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
506 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 507 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
508 | |
509 | mutex_lock(&pcm_mutex); | |
510 | ||
511 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
cb666e5b | 512 | cpu_dai->playback.active = codec_dai->playback.active = 0; |
db2a4165 | 513 | else |
cb666e5b | 514 | cpu_dai->capture.active = codec_dai->capture.active = 0; |
db2a4165 | 515 | |
cb666e5b LG |
516 | if (codec_dai->playback.active == 0 && |
517 | codec_dai->capture.active == 0) { | |
518 | cpu_dai->active = codec_dai->active = 0; | |
db2a4165 FM |
519 | } |
520 | codec->active--; | |
521 | ||
6010b2da MB |
522 | /* Muting the DAC suppresses artifacts caused during digital |
523 | * shutdown, for example from stopping clocks. | |
524 | */ | |
525 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
526 | snd_soc_dai_digital_mute(codec_dai, 1); | |
527 | ||
6335d055 EM |
528 | if (cpu_dai->ops->shutdown) |
529 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 530 | |
6335d055 EM |
531 | if (codec_dai->ops->shutdown) |
532 | codec_dai->ops->shutdown(substream, codec_dai); | |
db2a4165 FM |
533 | |
534 | if (machine->ops && machine->ops->shutdown) | |
535 | machine->ops->shutdown(substream); | |
536 | ||
537 | if (platform->pcm_ops->close) | |
538 | platform->pcm_ops->close(substream); | |
cb666e5b | 539 | cpu_dai->runtime = NULL; |
db2a4165 FM |
540 | |
541 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
542 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 543 | codec_dai->pop_wait = 1; |
6308419a | 544 | schedule_delayed_work(&card->delayed_work, |
db2a4165 FM |
545 | msecs_to_jiffies(pmdown_time)); |
546 | } else { | |
547 | /* capture streams can be powered down now */ | |
cb666e5b | 548 | snd_soc_dapm_stream_event(codec, |
0b4d221b LG |
549 | codec_dai->capture.stream_name, |
550 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 FM |
551 | } |
552 | ||
553 | mutex_unlock(&pcm_mutex); | |
554 | return 0; | |
555 | } | |
556 | ||
557 | /* | |
558 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
559 | * rate, etc. This function is non atomic and can be called multiple times, | |
560 | * it can refer to the runtime info. | |
561 | */ | |
562 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
563 | { | |
564 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
565 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 566 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 567 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 568 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
569 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
570 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 571 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
572 | int ret = 0; |
573 | ||
574 | mutex_lock(&pcm_mutex); | |
cb666e5b LG |
575 | |
576 | if (machine->ops && machine->ops->prepare) { | |
577 | ret = machine->ops->prepare(substream); | |
578 | if (ret < 0) { | |
579 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
580 | goto out; | |
581 | } | |
582 | } | |
583 | ||
db2a4165 FM |
584 | if (platform->pcm_ops->prepare) { |
585 | ret = platform->pcm_ops->prepare(substream); | |
a71a468a LG |
586 | if (ret < 0) { |
587 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 588 | goto out; |
a71a468a | 589 | } |
db2a4165 FM |
590 | } |
591 | ||
6335d055 EM |
592 | if (codec_dai->ops->prepare) { |
593 | ret = codec_dai->ops->prepare(substream, codec_dai); | |
a71a468a LG |
594 | if (ret < 0) { |
595 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 596 | goto out; |
a71a468a | 597 | } |
db2a4165 FM |
598 | } |
599 | ||
6335d055 EM |
600 | if (cpu_dai->ops->prepare) { |
601 | ret = cpu_dai->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
602 | if (ret < 0) { |
603 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
604 | goto out; | |
605 | } | |
606 | } | |
db2a4165 | 607 | |
d45f6219 MB |
608 | /* cancel any delayed stream shutdown that is pending */ |
609 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
610 | codec_dai->pop_wait) { | |
611 | codec_dai->pop_wait = 0; | |
6308419a | 612 | cancel_delayed_work(&card->delayed_work); |
d45f6219 | 613 | } |
db2a4165 | 614 | |
452c5eaa MB |
615 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
616 | snd_soc_dapm_stream_event(codec, | |
617 | codec_dai->playback.stream_name, | |
618 | SND_SOC_DAPM_STREAM_START); | |
619 | else | |
620 | snd_soc_dapm_stream_event(codec, | |
621 | codec_dai->capture.stream_name, | |
622 | SND_SOC_DAPM_STREAM_START); | |
8c6529db | 623 | |
452c5eaa | 624 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
625 | |
626 | out: | |
627 | mutex_unlock(&pcm_mutex); | |
628 | return ret; | |
629 | } | |
630 | ||
631 | /* | |
632 | * Called by ALSA when the hardware params are set by application. This | |
633 | * function can also be called multiple times and can allocate buffers | |
634 | * (using snd_pcm_lib_* ). It's non-atomic. | |
635 | */ | |
636 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
637 | struct snd_pcm_hw_params *params) | |
638 | { | |
639 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
640 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 641 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
642 | struct snd_soc_card *card = socdev->card; |
643 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
644 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
645 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
646 | int ret = 0; |
647 | ||
648 | mutex_lock(&pcm_mutex); | |
649 | ||
cb666e5b LG |
650 | if (machine->ops && machine->ops->hw_params) { |
651 | ret = machine->ops->hw_params(substream, params); | |
652 | if (ret < 0) { | |
653 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 654 | goto out; |
cb666e5b | 655 | } |
db2a4165 FM |
656 | } |
657 | ||
6335d055 EM |
658 | if (codec_dai->ops->hw_params) { |
659 | ret = codec_dai->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
660 | if (ret < 0) { |
661 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
662 | codec_dai->name); |
663 | goto codec_err; | |
db2a4165 FM |
664 | } |
665 | } | |
666 | ||
6335d055 EM |
667 | if (cpu_dai->ops->hw_params) { |
668 | ret = cpu_dai->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 669 | if (ret < 0) { |
3ff3f64b | 670 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 671 | cpu_dai->name); |
db2a4165 FM |
672 | goto interface_err; |
673 | } | |
674 | } | |
675 | ||
676 | if (platform->pcm_ops->hw_params) { | |
677 | ret = platform->pcm_ops->hw_params(substream, params); | |
678 | if (ret < 0) { | |
3ff3f64b | 679 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
680 | platform->name); |
681 | goto platform_err; | |
682 | } | |
683 | } | |
684 | ||
06f409d7 MB |
685 | machine->rate = params_rate(params); |
686 | ||
db2a4165 FM |
687 | out: |
688 | mutex_unlock(&pcm_mutex); | |
689 | return ret; | |
690 | ||
db2a4165 | 691 | platform_err: |
6335d055 EM |
692 | if (cpu_dai->ops->hw_free) |
693 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
694 | |
695 | interface_err: | |
6335d055 EM |
696 | if (codec_dai->ops->hw_free) |
697 | codec_dai->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
698 | |
699 | codec_err: | |
3ff3f64b | 700 | if (machine->ops && machine->ops->hw_free) |
cb666e5b | 701 | machine->ops->hw_free(substream); |
db2a4165 FM |
702 | |
703 | mutex_unlock(&pcm_mutex); | |
704 | return ret; | |
705 | } | |
706 | ||
707 | /* | |
708 | * Free's resources allocated by hw_params, can be called multiple times | |
709 | */ | |
710 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
711 | { | |
712 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
713 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 714 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
715 | struct snd_soc_card *card = socdev->card; |
716 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
717 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
718 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 719 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
720 | |
721 | mutex_lock(&pcm_mutex); | |
722 | ||
723 | /* apply codec digital mute */ | |
8c6529db LG |
724 | if (!codec->active) |
725 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
726 | |
727 | /* free any machine hw params */ | |
728 | if (machine->ops && machine->ops->hw_free) | |
729 | machine->ops->hw_free(substream); | |
730 | ||
731 | /* free any DMA resources */ | |
732 | if (platform->pcm_ops->hw_free) | |
733 | platform->pcm_ops->hw_free(substream); | |
734 | ||
735 | /* now free hw params for the DAI's */ | |
6335d055 EM |
736 | if (codec_dai->ops->hw_free) |
737 | codec_dai->ops->hw_free(substream, codec_dai); | |
db2a4165 | 738 | |
6335d055 EM |
739 | if (cpu_dai->ops->hw_free) |
740 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
741 | |
742 | mutex_unlock(&pcm_mutex); | |
743 | return 0; | |
744 | } | |
745 | ||
746 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
747 | { | |
748 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
749 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 750 | struct snd_soc_card *card= socdev->card; |
cb666e5b | 751 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 752 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
753 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
754 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
755 | int ret; |
756 | ||
6335d055 EM |
757 | if (codec_dai->ops->trigger) { |
758 | ret = codec_dai->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
759 | if (ret < 0) |
760 | return ret; | |
761 | } | |
762 | ||
763 | if (platform->pcm_ops->trigger) { | |
764 | ret = platform->pcm_ops->trigger(substream, cmd); | |
765 | if (ret < 0) | |
766 | return ret; | |
767 | } | |
768 | ||
6335d055 EM |
769 | if (cpu_dai->ops->trigger) { |
770 | ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
771 | if (ret < 0) |
772 | return ret; | |
773 | } | |
774 | return 0; | |
775 | } | |
776 | ||
777 | /* ASoC PCM operations */ | |
778 | static struct snd_pcm_ops soc_pcm_ops = { | |
779 | .open = soc_pcm_open, | |
780 | .close = soc_codec_close, | |
781 | .hw_params = soc_pcm_hw_params, | |
782 | .hw_free = soc_pcm_hw_free, | |
783 | .prepare = soc_pcm_prepare, | |
784 | .trigger = soc_pcm_trigger, | |
785 | }; | |
786 | ||
787 | #ifdef CONFIG_PM | |
788 | /* powers down audio subsystem for suspend */ | |
416356fc | 789 | static int soc_suspend(struct device *dev) |
db2a4165 | 790 | { |
416356fc | 791 | struct platform_device *pdev = to_platform_device(dev); |
3ff3f64b | 792 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
87506549 | 793 | struct snd_soc_card *card = socdev->card; |
87689d56 | 794 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 795 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 796 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
797 | int i; |
798 | ||
e3509ff0 DM |
799 | /* If the initialization of this soc device failed, there is no codec |
800 | * associated with it. Just bail out in this case. | |
801 | */ | |
802 | if (!codec) | |
803 | return 0; | |
804 | ||
6ed25978 AG |
805 | /* Due to the resume being scheduled into a workqueue we could |
806 | * suspend before that's finished - wait for it to complete. | |
807 | */ | |
808 | snd_power_lock(codec->card); | |
809 | snd_power_wait(codec->card, SNDRV_CTL_POWER_D0); | |
810 | snd_power_unlock(codec->card); | |
811 | ||
812 | /* we're going to block userspace touching us until resume completes */ | |
813 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot); | |
814 | ||
db2a4165 | 815 | /* mute any active DAC's */ |
dee89c4d MB |
816 | for (i = 0; i < card->num_links; i++) { |
817 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
818 | if (dai->ops->digital_mute && dai->playback.active) |
819 | dai->ops->digital_mute(dai, 1); | |
db2a4165 FM |
820 | } |
821 | ||
4ccab3e7 | 822 | /* suspend all pcms */ |
87506549 MB |
823 | for (i = 0; i < card->num_links; i++) |
824 | snd_pcm_suspend_all(card->dai_link[i].pcm); | |
4ccab3e7 | 825 | |
87506549 | 826 | if (card->suspend_pre) |
416356fc | 827 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 828 | |
87506549 MB |
829 | for (i = 0; i < card->num_links; i++) { |
830 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 831 | if (cpu_dai->suspend && !cpu_dai->ac97_control) |
dc7d7b83 | 832 | cpu_dai->suspend(cpu_dai); |
db2a4165 | 833 | if (platform->suspend) |
07c84d04 | 834 | platform->suspend(cpu_dai); |
db2a4165 FM |
835 | } |
836 | ||
837 | /* close any waiting streams and save state */ | |
6308419a | 838 | run_delayed_work(&card->delayed_work); |
0be9898a | 839 | codec->suspend_bias_level = codec->bias_level; |
db2a4165 | 840 | |
3ff3f64b | 841 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
842 | char *stream = codec->dai[i].playback.stream_name; |
843 | if (stream != NULL) | |
844 | snd_soc_dapm_stream_event(codec, stream, | |
845 | SND_SOC_DAPM_STREAM_SUSPEND); | |
846 | stream = codec->dai[i].capture.stream_name; | |
847 | if (stream != NULL) | |
848 | snd_soc_dapm_stream_event(codec, stream, | |
849 | SND_SOC_DAPM_STREAM_SUSPEND); | |
850 | } | |
851 | ||
852 | if (codec_dev->suspend) | |
416356fc | 853 | codec_dev->suspend(pdev, PMSG_SUSPEND); |
db2a4165 | 854 | |
87506549 MB |
855 | for (i = 0; i < card->num_links; i++) { |
856 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 857 | if (cpu_dai->suspend && cpu_dai->ac97_control) |
dc7d7b83 | 858 | cpu_dai->suspend(cpu_dai); |
db2a4165 FM |
859 | } |
860 | ||
87506549 | 861 | if (card->suspend_post) |
416356fc | 862 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
863 | |
864 | return 0; | |
865 | } | |
866 | ||
6ed25978 AG |
867 | /* deferred resume work, so resume can complete before we finished |
868 | * setting our codec back up, which can be very slow on I2C | |
869 | */ | |
870 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 871 | { |
6308419a MB |
872 | struct snd_soc_card *card = container_of(work, |
873 | struct snd_soc_card, | |
874 | deferred_resume_work); | |
875 | struct snd_soc_device *socdev = card->socdev; | |
87689d56 | 876 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 877 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 878 | struct snd_soc_codec *codec = card->codec; |
6ed25978 | 879 | struct platform_device *pdev = to_platform_device(socdev->dev); |
db2a4165 FM |
880 | int i; |
881 | ||
6ed25978 AG |
882 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
883 | * so userspace apps are blocked from touching us | |
884 | */ | |
885 | ||
fde22f27 | 886 | dev_dbg(socdev->dev, "starting resume work\n"); |
6ed25978 | 887 | |
87506549 MB |
888 | if (card->resume_pre) |
889 | card->resume_pre(pdev); | |
db2a4165 | 890 | |
87506549 MB |
891 | for (i = 0; i < card->num_links; i++) { |
892 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 893 | if (cpu_dai->resume && cpu_dai->ac97_control) |
dc7d7b83 | 894 | cpu_dai->resume(cpu_dai); |
db2a4165 FM |
895 | } |
896 | ||
897 | if (codec_dev->resume) | |
898 | codec_dev->resume(pdev); | |
899 | ||
3ff3f64b MB |
900 | for (i = 0; i < codec->num_dai; i++) { |
901 | char *stream = codec->dai[i].playback.stream_name; | |
db2a4165 FM |
902 | if (stream != NULL) |
903 | snd_soc_dapm_stream_event(codec, stream, | |
904 | SND_SOC_DAPM_STREAM_RESUME); | |
905 | stream = codec->dai[i].capture.stream_name; | |
906 | if (stream != NULL) | |
907 | snd_soc_dapm_stream_event(codec, stream, | |
908 | SND_SOC_DAPM_STREAM_RESUME); | |
909 | } | |
910 | ||
3ff3f64b | 911 | /* unmute any active DACs */ |
dee89c4d MB |
912 | for (i = 0; i < card->num_links; i++) { |
913 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
914 | if (dai->ops->digital_mute && dai->playback.active) |
915 | dai->ops->digital_mute(dai, 0); | |
db2a4165 FM |
916 | } |
917 | ||
87506549 MB |
918 | for (i = 0; i < card->num_links; i++) { |
919 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 920 | if (cpu_dai->resume && !cpu_dai->ac97_control) |
dc7d7b83 | 921 | cpu_dai->resume(cpu_dai); |
db2a4165 | 922 | if (platform->resume) |
07c84d04 | 923 | platform->resume(cpu_dai); |
db2a4165 FM |
924 | } |
925 | ||
87506549 MB |
926 | if (card->resume_post) |
927 | card->resume_post(pdev); | |
db2a4165 | 928 | |
fde22f27 | 929 | dev_dbg(socdev->dev, "resume work completed\n"); |
6ed25978 AG |
930 | |
931 | /* userspace can access us now we are back as we were before */ | |
932 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0); | |
933 | } | |
934 | ||
935 | /* powers up audio subsystem after a suspend */ | |
416356fc | 936 | static int soc_resume(struct device *dev) |
6ed25978 | 937 | { |
416356fc | 938 | struct platform_device *pdev = to_platform_device(dev); |
6ed25978 | 939 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
6308419a | 940 | struct snd_soc_card *card = socdev->card; |
64ab9baa | 941 | struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai; |
6ed25978 | 942 | |
64ab9baa MB |
943 | /* AC97 devices might have other drivers hanging off them so |
944 | * need to resume immediately. Other drivers don't have that | |
945 | * problem and may take a substantial amount of time to resume | |
946 | * due to I/O costs and anti-pop so handle them out of line. | |
947 | */ | |
948 | if (cpu_dai->ac97_control) { | |
949 | dev_dbg(socdev->dev, "Resuming AC97 immediately\n"); | |
950 | soc_resume_deferred(&card->deferred_resume_work); | |
951 | } else { | |
952 | dev_dbg(socdev->dev, "Scheduling resume work\n"); | |
953 | if (!schedule_work(&card->deferred_resume_work)) | |
954 | dev_err(socdev->dev, "resume work item may be lost\n"); | |
955 | } | |
6ed25978 | 956 | |
db2a4165 FM |
957 | return 0; |
958 | } | |
db2a4165 FM |
959 | #else |
960 | #define soc_suspend NULL | |
961 | #define soc_resume NULL | |
962 | #endif | |
963 | ||
02a06d30 BS |
964 | static struct snd_soc_dai_ops null_dai_ops = { |
965 | }; | |
966 | ||
435c5e25 | 967 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
db2a4165 | 968 | { |
435c5e25 MB |
969 | struct platform_device *pdev = container_of(card->dev, |
970 | struct platform_device, | |
971 | dev); | |
972 | struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev; | |
fe3e78e0 | 973 | struct snd_soc_codec *codec; |
435c5e25 MB |
974 | struct snd_soc_platform *platform; |
975 | struct snd_soc_dai *dai; | |
6b05eda6 | 976 | int i, found, ret, ac97; |
435c5e25 MB |
977 | |
978 | if (card->instantiated) | |
979 | return; | |
980 | ||
981 | found = 0; | |
982 | list_for_each_entry(platform, &platform_list, list) | |
983 | if (card->platform == platform) { | |
984 | found = 1; | |
985 | break; | |
986 | } | |
987 | if (!found) { | |
988 | dev_dbg(card->dev, "Platform %s not registered\n", | |
989 | card->platform->name); | |
990 | return; | |
991 | } | |
6308419a | 992 | |
6b05eda6 | 993 | ac97 = 0; |
435c5e25 MB |
994 | for (i = 0; i < card->num_links; i++) { |
995 | found = 0; | |
996 | list_for_each_entry(dai, &dai_list, list) | |
997 | if (card->dai_link[i].cpu_dai == dai) { | |
998 | found = 1; | |
999 | break; | |
1000 | } | |
1001 | if (!found) { | |
1002 | dev_dbg(card->dev, "DAI %s not registered\n", | |
1003 | card->dai_link[i].cpu_dai->name); | |
1004 | return; | |
1005 | } | |
6b05eda6 MB |
1006 | |
1007 | if (card->dai_link[i].cpu_dai->ac97_control) | |
1008 | ac97 = 1; | |
c5af3a2e MB |
1009 | } |
1010 | ||
02a06d30 BS |
1011 | for (i = 0; i < card->num_links; i++) { |
1012 | if (!card->dai_link[i].codec_dai->ops) | |
1013 | card->dai_link[i].codec_dai->ops = &null_dai_ops; | |
1014 | } | |
1015 | ||
6b05eda6 MB |
1016 | /* If we have AC97 in the system then don't wait for the |
1017 | * codec. This will need revisiting if we have to handle | |
1018 | * systems with mixed AC97 and non-AC97 parts. Only check for | |
1019 | * DAIs currently; we can't do this per link since some AC97 | |
1020 | * codecs have non-AC97 DAIs. | |
1021 | */ | |
1022 | if (!ac97) | |
1023 | for (i = 0; i < card->num_links; i++) { | |
1024 | found = 0; | |
1025 | list_for_each_entry(dai, &dai_list, list) | |
1026 | if (card->dai_link[i].codec_dai == dai) { | |
1027 | found = 1; | |
1028 | break; | |
1029 | } | |
1030 | if (!found) { | |
1031 | dev_dbg(card->dev, "DAI %s not registered\n", | |
1032 | card->dai_link[i].codec_dai->name); | |
1033 | return; | |
1034 | } | |
1035 | } | |
1036 | ||
435c5e25 MB |
1037 | /* Note that we do not current check for codec components */ |
1038 | ||
1039 | dev_dbg(card->dev, "All components present, instantiating\n"); | |
1040 | ||
1041 | /* Found everything, bring it up */ | |
87506549 MB |
1042 | if (card->probe) { |
1043 | ret = card->probe(pdev); | |
3ff3f64b | 1044 | if (ret < 0) |
435c5e25 | 1045 | return; |
db2a4165 FM |
1046 | } |
1047 | ||
87506549 MB |
1048 | for (i = 0; i < card->num_links; i++) { |
1049 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 1050 | if (cpu_dai->probe) { |
bdb92876 | 1051 | ret = cpu_dai->probe(pdev, cpu_dai); |
3ff3f64b | 1052 | if (ret < 0) |
db2a4165 FM |
1053 | goto cpu_dai_err; |
1054 | } | |
1055 | } | |
1056 | ||
1057 | if (codec_dev->probe) { | |
1058 | ret = codec_dev->probe(pdev); | |
3ff3f64b | 1059 | if (ret < 0) |
db2a4165 FM |
1060 | goto cpu_dai_err; |
1061 | } | |
fe3e78e0 | 1062 | codec = card->codec; |
db2a4165 FM |
1063 | |
1064 | if (platform->probe) { | |
1065 | ret = platform->probe(pdev); | |
3ff3f64b | 1066 | if (ret < 0) |
db2a4165 FM |
1067 | goto platform_err; |
1068 | } | |
1069 | ||
1070 | /* DAPM stream work */ | |
6308419a | 1071 | INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work); |
1301a964 | 1072 | #ifdef CONFIG_PM |
6ed25978 | 1073 | /* deferred resume work */ |
6308419a | 1074 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); |
1301a964 | 1075 | #endif |
6ed25978 | 1076 | |
fe3e78e0 MB |
1077 | for (i = 0; i < card->num_links; i++) { |
1078 | if (card->dai_link[i].init) { | |
1079 | ret = card->dai_link[i].init(codec); | |
1080 | if (ret < 0) { | |
1081 | printk(KERN_ERR "asoc: failed to init %s\n", | |
1082 | card->dai_link[i].stream_name); | |
1083 | continue; | |
1084 | } | |
1085 | } | |
f7732053 | 1086 | if (card->dai_link[i].codec_dai->ac97_control) |
fe3e78e0 | 1087 | ac97 = 1; |
fe3e78e0 MB |
1088 | } |
1089 | ||
1090 | snprintf(codec->card->shortname, sizeof(codec->card->shortname), | |
1091 | "%s", card->name); | |
1092 | snprintf(codec->card->longname, sizeof(codec->card->longname), | |
1093 | "%s (%s)", card->name, codec->name); | |
1094 | ||
1095 | /* Make sure all DAPM widgets are instantiated */ | |
1096 | snd_soc_dapm_new_widgets(codec); | |
1097 | ||
1098 | ret = snd_card_register(codec->card); | |
1099 | if (ret < 0) { | |
1100 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", | |
1101 | codec->name); | |
1102 | goto card_err; | |
1103 | } | |
1104 | ||
1105 | mutex_lock(&codec->mutex); | |
1106 | #ifdef CONFIG_SND_SOC_AC97_BUS | |
1107 | /* Only instantiate AC97 if not already done by the adaptor | |
1108 | * for the generic AC97 subsystem. | |
1109 | */ | |
1110 | if (ac97 && strcmp(codec->name, "AC97") != 0) { | |
1111 | ret = soc_ac97_dev_register(codec); | |
1112 | if (ret < 0) { | |
1113 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
1114 | snd_card_free(codec->card); | |
1115 | mutex_unlock(&codec->mutex); | |
1116 | goto card_err; | |
1117 | } | |
1118 | } | |
1119 | #endif | |
1120 | ||
1121 | ret = snd_soc_dapm_sys_add(card->socdev->dev); | |
1122 | if (ret < 0) | |
1123 | printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); | |
1124 | ||
1125 | ret = device_create_file(card->socdev->dev, &dev_attr_codec_reg); | |
1126 | if (ret < 0) | |
1127 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1128 | ||
1129 | soc_init_codec_debugfs(codec); | |
1130 | mutex_unlock(&codec->mutex); | |
1131 | ||
435c5e25 MB |
1132 | card->instantiated = 1; |
1133 | ||
1134 | return; | |
db2a4165 | 1135 | |
fe3e78e0 MB |
1136 | card_err: |
1137 | if (platform->remove) | |
1138 | platform->remove(pdev); | |
1139 | ||
db2a4165 FM |
1140 | platform_err: |
1141 | if (codec_dev->remove) | |
1142 | codec_dev->remove(pdev); | |
1143 | ||
1144 | cpu_dai_err: | |
18b9b3d9 | 1145 | for (i--; i >= 0; i--) { |
87506549 | 1146 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
db2a4165 | 1147 | if (cpu_dai->remove) |
bdb92876 | 1148 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
1149 | } |
1150 | ||
87506549 MB |
1151 | if (card->remove) |
1152 | card->remove(pdev); | |
435c5e25 | 1153 | } |
db2a4165 | 1154 | |
435c5e25 MB |
1155 | /* |
1156 | * Attempt to initialise any uninitalised cards. Must be called with | |
1157 | * client_mutex. | |
1158 | */ | |
1159 | static void snd_soc_instantiate_cards(void) | |
1160 | { | |
1161 | struct snd_soc_card *card; | |
1162 | list_for_each_entry(card, &card_list, list) | |
1163 | snd_soc_instantiate_card(card); | |
1164 | } | |
1165 | ||
1166 | /* probes a new socdev */ | |
1167 | static int soc_probe(struct platform_device *pdev) | |
1168 | { | |
1169 | int ret = 0; | |
1170 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1171 | struct snd_soc_card *card = socdev->card; | |
1172 | ||
1173 | /* Bodge while we push things out of socdev */ | |
1174 | card->socdev = socdev; | |
1175 | ||
1176 | /* Bodge while we unpick instantiation */ | |
1177 | card->dev = &pdev->dev; | |
1178 | ret = snd_soc_register_card(card); | |
1179 | if (ret != 0) { | |
1180 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1181 | return ret; | |
1182 | } | |
1183 | ||
1184 | return 0; | |
db2a4165 FM |
1185 | } |
1186 | ||
1187 | /* removes a socdev */ | |
1188 | static int soc_remove(struct platform_device *pdev) | |
1189 | { | |
1190 | int i; | |
1191 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
87506549 | 1192 | struct snd_soc_card *card = socdev->card; |
87689d56 | 1193 | struct snd_soc_platform *platform = card->platform; |
db2a4165 FM |
1194 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
1195 | ||
914dc182 MR |
1196 | if (!card->instantiated) |
1197 | return 0; | |
1198 | ||
6308419a | 1199 | run_delayed_work(&card->delayed_work); |
965ac42c | 1200 | |
db2a4165 FM |
1201 | if (platform->remove) |
1202 | platform->remove(pdev); | |
1203 | ||
1204 | if (codec_dev->remove) | |
1205 | codec_dev->remove(pdev); | |
1206 | ||
87506549 MB |
1207 | for (i = 0; i < card->num_links; i++) { |
1208 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 1209 | if (cpu_dai->remove) |
bdb92876 | 1210 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
1211 | } |
1212 | ||
87506549 MB |
1213 | if (card->remove) |
1214 | card->remove(pdev); | |
db2a4165 | 1215 | |
c5af3a2e MB |
1216 | snd_soc_unregister_card(card); |
1217 | ||
db2a4165 FM |
1218 | return 0; |
1219 | } | |
1220 | ||
416356fc | 1221 | static int soc_poweroff(struct device *dev) |
51737470 | 1222 | { |
416356fc | 1223 | struct platform_device *pdev = to_platform_device(dev); |
51737470 MB |
1224 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
1225 | struct snd_soc_card *card = socdev->card; | |
1226 | ||
1227 | if (!card->instantiated) | |
416356fc | 1228 | return 0; |
51737470 MB |
1229 | |
1230 | /* Flush out pmdown_time work - we actually do want to run it | |
1231 | * now, we're shutting down so no imminent restart. */ | |
1232 | run_delayed_work(&card->delayed_work); | |
1233 | ||
1234 | snd_soc_dapm_shutdown(socdev); | |
416356fc MB |
1235 | |
1236 | return 0; | |
51737470 MB |
1237 | } |
1238 | ||
47145210 | 1239 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1240 | .suspend = soc_suspend, |
1241 | .resume = soc_resume, | |
1242 | .poweroff = soc_poweroff, | |
1243 | }; | |
1244 | ||
db2a4165 FM |
1245 | /* ASoC platform driver */ |
1246 | static struct platform_driver soc_driver = { | |
1247 | .driver = { | |
1248 | .name = "soc-audio", | |
8b45a209 | 1249 | .owner = THIS_MODULE, |
416356fc | 1250 | .pm = &soc_pm_ops, |
db2a4165 FM |
1251 | }, |
1252 | .probe = soc_probe, | |
1253 | .remove = soc_remove, | |
db2a4165 FM |
1254 | }; |
1255 | ||
1256 | /* create a new pcm */ | |
1257 | static int soc_new_pcm(struct snd_soc_device *socdev, | |
1258 | struct snd_soc_dai_link *dai_link, int num) | |
1259 | { | |
87689d56 | 1260 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1261 | struct snd_soc_codec *codec = card->codec; |
87689d56 | 1262 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
1263 | struct snd_soc_dai *codec_dai = dai_link->codec_dai; |
1264 | struct snd_soc_dai *cpu_dai = dai_link->cpu_dai; | |
db2a4165 FM |
1265 | struct snd_soc_pcm_runtime *rtd; |
1266 | struct snd_pcm *pcm; | |
1267 | char new_name[64]; | |
1268 | int ret = 0, playback = 0, capture = 0; | |
1269 | ||
1270 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
1271 | if (rtd == NULL) | |
1272 | return -ENOMEM; | |
cb666e5b LG |
1273 | |
1274 | rtd->dai = dai_link; | |
db2a4165 | 1275 | rtd->socdev = socdev; |
6627a653 | 1276 | codec_dai->codec = card->codec; |
db2a4165 FM |
1277 | |
1278 | /* check client and interface hw capabilities */ | |
3ba9e10a MB |
1279 | sprintf(new_name, "%s %s-%d", dai_link->stream_name, codec_dai->name, |
1280 | num); | |
db2a4165 FM |
1281 | |
1282 | if (codec_dai->playback.channels_min) | |
1283 | playback = 1; | |
1284 | if (codec_dai->capture.channels_min) | |
1285 | capture = 1; | |
1286 | ||
1287 | ret = snd_pcm_new(codec->card, new_name, codec->pcm_devs++, playback, | |
1288 | capture, &pcm); | |
1289 | if (ret < 0) { | |
3ff3f64b MB |
1290 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", |
1291 | codec->name); | |
db2a4165 FM |
1292 | kfree(rtd); |
1293 | return ret; | |
1294 | } | |
1295 | ||
4ccab3e7 | 1296 | dai_link->pcm = pcm; |
db2a4165 | 1297 | pcm->private_data = rtd; |
87689d56 MB |
1298 | soc_pcm_ops.mmap = platform->pcm_ops->mmap; |
1299 | soc_pcm_ops.pointer = platform->pcm_ops->pointer; | |
1300 | soc_pcm_ops.ioctl = platform->pcm_ops->ioctl; | |
1301 | soc_pcm_ops.copy = platform->pcm_ops->copy; | |
1302 | soc_pcm_ops.silence = platform->pcm_ops->silence; | |
1303 | soc_pcm_ops.ack = platform->pcm_ops->ack; | |
1304 | soc_pcm_ops.page = platform->pcm_ops->page; | |
db2a4165 FM |
1305 | |
1306 | if (playback) | |
1307 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1308 | ||
1309 | if (capture) | |
1310 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1311 | ||
87689d56 | 1312 | ret = platform->pcm_new(codec->card, codec_dai, pcm); |
db2a4165 FM |
1313 | if (ret < 0) { |
1314 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
1315 | kfree(rtd); | |
1316 | return ret; | |
1317 | } | |
1318 | ||
87689d56 | 1319 | pcm->private_free = platform->pcm_free; |
db2a4165 FM |
1320 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1321 | cpu_dai->name); | |
1322 | return ret; | |
1323 | } | |
1324 | ||
096e49d5 MB |
1325 | /** |
1326 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1327 | * | |
1328 | * @codec: CODEC to query. | |
1329 | * @reg: Register to query. | |
1330 | * | |
1331 | * Boolean function indiciating if a CODEC register is volatile. | |
1332 | */ | |
1333 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1334 | { | |
1335 | if (codec->volatile_register) | |
1336 | return codec->volatile_register(reg); | |
1337 | else | |
1338 | return 0; | |
1339 | } | |
1340 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1341 | ||
db2a4165 FM |
1342 | /** |
1343 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1344 | * @codec: audio codec | |
1345 | * @ops: AC97 bus operations | |
1346 | * @num: AC97 codec number | |
1347 | * | |
1348 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1349 | */ | |
1350 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1351 | struct snd_ac97_bus_ops *ops, int num) | |
1352 | { | |
1353 | mutex_lock(&codec->mutex); | |
1354 | ||
1355 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1356 | if (codec->ac97 == NULL) { | |
1357 | mutex_unlock(&codec->mutex); | |
1358 | return -ENOMEM; | |
1359 | } | |
1360 | ||
1361 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1362 | if (codec->ac97->bus == NULL) { | |
1363 | kfree(codec->ac97); | |
1364 | codec->ac97 = NULL; | |
1365 | mutex_unlock(&codec->mutex); | |
1366 | return -ENOMEM; | |
1367 | } | |
1368 | ||
1369 | codec->ac97->bus->ops = ops; | |
1370 | codec->ac97->num = num; | |
1371 | mutex_unlock(&codec->mutex); | |
1372 | return 0; | |
1373 | } | |
1374 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1375 | ||
1376 | /** | |
1377 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1378 | * @codec: audio codec | |
1379 | * | |
1380 | * Frees AC97 codec device resources. | |
1381 | */ | |
1382 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1383 | { | |
1384 | mutex_lock(&codec->mutex); | |
1385 | kfree(codec->ac97->bus); | |
1386 | kfree(codec->ac97); | |
1387 | codec->ac97 = NULL; | |
1388 | mutex_unlock(&codec->mutex); | |
1389 | } | |
1390 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1391 | ||
1392 | /** | |
1393 | * snd_soc_update_bits - update codec register bits | |
1394 | * @codec: audio codec | |
1395 | * @reg: codec register | |
1396 | * @mask: register mask | |
1397 | * @value: new value | |
1398 | * | |
1399 | * Writes new register value. | |
1400 | * | |
1401 | * Returns 1 for change else 0. | |
1402 | */ | |
1403 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1404 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1405 | { |
1406 | int change; | |
46f5822f | 1407 | unsigned int old, new; |
db2a4165 | 1408 | |
db2a4165 FM |
1409 | old = snd_soc_read(codec, reg); |
1410 | new = (old & ~mask) | value; | |
1411 | change = old != new; | |
1412 | if (change) | |
1413 | snd_soc_write(codec, reg, new); | |
1414 | ||
db2a4165 FM |
1415 | return change; |
1416 | } | |
1417 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1418 | ||
6c508c62 EN |
1419 | /** |
1420 | * snd_soc_update_bits_locked - update codec register bits | |
1421 | * @codec: audio codec | |
1422 | * @reg: codec register | |
1423 | * @mask: register mask | |
1424 | * @value: new value | |
1425 | * | |
1426 | * Writes new register value, and takes the codec mutex. | |
1427 | * | |
1428 | * Returns 1 for change else 0. | |
1429 | */ | |
1430 | static int snd_soc_update_bits_locked(struct snd_soc_codec *codec, | |
1431 | unsigned short reg, unsigned int mask, | |
1432 | unsigned int value) | |
1433 | { | |
1434 | int change; | |
1435 | ||
1436 | mutex_lock(&codec->mutex); | |
1437 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1438 | mutex_unlock(&codec->mutex); | |
1439 | ||
1440 | return change; | |
1441 | } | |
1442 | ||
db2a4165 FM |
1443 | /** |
1444 | * snd_soc_test_bits - test register for change | |
1445 | * @codec: audio codec | |
1446 | * @reg: codec register | |
1447 | * @mask: register mask | |
1448 | * @value: new value | |
1449 | * | |
1450 | * Tests a register with a new value and checks if the new value is | |
1451 | * different from the old value. | |
1452 | * | |
1453 | * Returns 1 for change else 0. | |
1454 | */ | |
1455 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1456 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1457 | { |
1458 | int change; | |
46f5822f | 1459 | unsigned int old, new; |
db2a4165 | 1460 | |
db2a4165 FM |
1461 | old = snd_soc_read(codec, reg); |
1462 | new = (old & ~mask) | value; | |
1463 | change = old != new; | |
db2a4165 FM |
1464 | |
1465 | return change; | |
1466 | } | |
1467 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1468 | ||
db2a4165 FM |
1469 | /** |
1470 | * snd_soc_new_pcms - create new sound card and pcms | |
1471 | * @socdev: the SoC audio device | |
ac11a2b3 MB |
1472 | * @idx: ALSA card index |
1473 | * @xid: card identification | |
db2a4165 FM |
1474 | * |
1475 | * Create a new sound card based upon the codec and interface pcms. | |
1476 | * | |
1477 | * Returns 0 for success, else error. | |
1478 | */ | |
bc7320c5 | 1479 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid) |
db2a4165 | 1480 | { |
87506549 | 1481 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1482 | struct snd_soc_codec *codec = card->codec; |
bd7dd77c | 1483 | int ret, i; |
db2a4165 FM |
1484 | |
1485 | mutex_lock(&codec->mutex); | |
1486 | ||
1487 | /* register a sound card */ | |
bd7dd77c TI |
1488 | ret = snd_card_create(idx, xid, codec->owner, 0, &codec->card); |
1489 | if (ret < 0) { | |
db2a4165 FM |
1490 | printk(KERN_ERR "asoc: can't create sound card for codec %s\n", |
1491 | codec->name); | |
1492 | mutex_unlock(&codec->mutex); | |
bd7dd77c | 1493 | return ret; |
db2a4165 FM |
1494 | } |
1495 | ||
452c5eaa | 1496 | codec->socdev = socdev; |
db2a4165 FM |
1497 | codec->card->dev = socdev->dev; |
1498 | codec->card->private_data = codec; | |
1499 | strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver)); | |
1500 | ||
1501 | /* create the pcms */ | |
87506549 MB |
1502 | for (i = 0; i < card->num_links; i++) { |
1503 | ret = soc_new_pcm(socdev, &card->dai_link[i], i); | |
db2a4165 FM |
1504 | if (ret < 0) { |
1505 | printk(KERN_ERR "asoc: can't create pcm %s\n", | |
87506549 | 1506 | card->dai_link[i].stream_name); |
db2a4165 FM |
1507 | mutex_unlock(&codec->mutex); |
1508 | return ret; | |
1509 | } | |
f7732053 BS |
1510 | if (card->dai_link[i].codec_dai->ac97_control) { |
1511 | snd_ac97_dev_add_pdata(codec->ac97, | |
1512 | card->dai_link[i].cpu_dai->ac97_pdata); | |
1513 | } | |
db2a4165 FM |
1514 | } |
1515 | ||
1516 | mutex_unlock(&codec->mutex); | |
1517 | return ret; | |
1518 | } | |
1519 | EXPORT_SYMBOL_GPL(snd_soc_new_pcms); | |
1520 | ||
db2a4165 FM |
1521 | /** |
1522 | * snd_soc_free_pcms - free sound card and pcms | |
1523 | * @socdev: the SoC audio device | |
1524 | * | |
1525 | * Frees sound card and pcms associated with the socdev. | |
1526 | * Also unregister the codec if it is an AC97 device. | |
1527 | */ | |
1528 | void snd_soc_free_pcms(struct snd_soc_device *socdev) | |
1529 | { | |
6627a653 | 1530 | struct snd_soc_codec *codec = socdev->card->codec; |
a68660e0 | 1531 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3c4b266f | 1532 | struct snd_soc_dai *codec_dai; |
a68660e0 LG |
1533 | int i; |
1534 | #endif | |
db2a4165 FM |
1535 | |
1536 | mutex_lock(&codec->mutex); | |
6627a653 | 1537 | soc_cleanup_codec_debugfs(codec); |
db2a4165 | 1538 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3ff3f64b | 1539 | for (i = 0; i < codec->num_dai; i++) { |
a68660e0 | 1540 | codec_dai = &codec->dai[i]; |
d2314e0e AN |
1541 | if (codec_dai->ac97_control && codec->ac97 && |
1542 | strcmp(codec->name, "AC97") != 0) { | |
a68660e0 LG |
1543 | soc_ac97_dev_unregister(codec); |
1544 | goto free_card; | |
1545 | } | |
1546 | } | |
1547 | free_card: | |
db2a4165 FM |
1548 | #endif |
1549 | ||
1550 | if (codec->card) | |
1551 | snd_card_free(codec->card); | |
1552 | device_remove_file(socdev->dev, &dev_attr_codec_reg); | |
1553 | mutex_unlock(&codec->mutex); | |
1554 | } | |
1555 | EXPORT_SYMBOL_GPL(snd_soc_free_pcms); | |
1556 | ||
1557 | /** | |
1558 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1559 | * @substream: the pcm substream | |
1560 | * @hw: the hardware parameters | |
1561 | * | |
1562 | * Sets the substream runtime hardware parameters. | |
1563 | */ | |
1564 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1565 | const struct snd_pcm_hardware *hw) | |
1566 | { | |
1567 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1568 | runtime->hw.info = hw->info; | |
1569 | runtime->hw.formats = hw->formats; | |
1570 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1571 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1572 | runtime->hw.periods_min = hw->periods_min; | |
1573 | runtime->hw.periods_max = hw->periods_max; | |
1574 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1575 | runtime->hw.fifo_size = hw->fifo_size; | |
1576 | return 0; | |
1577 | } | |
1578 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1579 | ||
1580 | /** | |
1581 | * snd_soc_cnew - create new control | |
1582 | * @_template: control template | |
1583 | * @data: control private data | |
ac11a2b3 | 1584 | * @long_name: control long name |
db2a4165 FM |
1585 | * |
1586 | * Create a new mixer control from a template control. | |
1587 | * | |
1588 | * Returns 0 for success, else error. | |
1589 | */ | |
1590 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1591 | void *data, char *long_name) | |
1592 | { | |
1593 | struct snd_kcontrol_new template; | |
1594 | ||
1595 | memcpy(&template, _template, sizeof(template)); | |
1596 | if (long_name) | |
1597 | template.name = long_name; | |
db2a4165 FM |
1598 | template.index = 0; |
1599 | ||
1600 | return snd_ctl_new1(&template, data); | |
1601 | } | |
1602 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1603 | ||
3e8e1952 IM |
1604 | /** |
1605 | * snd_soc_add_controls - add an array of controls to a codec. | |
1606 | * Convienience function to add a list of controls. Many codecs were | |
1607 | * duplicating this code. | |
1608 | * | |
1609 | * @codec: codec to add controls to | |
1610 | * @controls: array of controls to add | |
1611 | * @num_controls: number of elements in the array | |
1612 | * | |
1613 | * Return 0 for success, else error. | |
1614 | */ | |
1615 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1616 | const struct snd_kcontrol_new *controls, int num_controls) | |
1617 | { | |
1618 | struct snd_card *card = codec->card; | |
1619 | int err, i; | |
1620 | ||
1621 | for (i = 0; i < num_controls; i++) { | |
1622 | const struct snd_kcontrol_new *control = &controls[i]; | |
1623 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
1624 | if (err < 0) { | |
1625 | dev_err(codec->dev, "%s: Failed to add %s\n", | |
1626 | codec->name, control->name); | |
1627 | return err; | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | return 0; | |
1632 | } | |
1633 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
1634 | ||
db2a4165 FM |
1635 | /** |
1636 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
1637 | * @kcontrol: mixer control | |
1638 | * @uinfo: control element information | |
1639 | * | |
1640 | * Callback to provide information about a double enumerated | |
1641 | * mixer control. | |
1642 | * | |
1643 | * Returns 0 for success. | |
1644 | */ | |
1645 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
1646 | struct snd_ctl_elem_info *uinfo) | |
1647 | { | |
1648 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1649 | ||
1650 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1651 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 1652 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1653 | |
f8ba0b7b JS |
1654 | if (uinfo->value.enumerated.item > e->max - 1) |
1655 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1656 | strcpy(uinfo->value.enumerated.name, |
1657 | e->texts[uinfo->value.enumerated.item]); | |
1658 | return 0; | |
1659 | } | |
1660 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
1661 | ||
1662 | /** | |
1663 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
1664 | * @kcontrol: mixer control | |
ac11a2b3 | 1665 | * @ucontrol: control element information |
db2a4165 FM |
1666 | * |
1667 | * Callback to get the value of a double enumerated mixer. | |
1668 | * | |
1669 | * Returns 0 for success. | |
1670 | */ | |
1671 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
1672 | struct snd_ctl_elem_value *ucontrol) | |
1673 | { | |
1674 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1675 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1676 | unsigned int val, bitmask; |
db2a4165 | 1677 | |
f8ba0b7b | 1678 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
1679 | ; |
1680 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
1681 | ucontrol->value.enumerated.item[0] |
1682 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
1683 | if (e->shift_l != e->shift_r) |
1684 | ucontrol->value.enumerated.item[1] = | |
1685 | (val >> e->shift_r) & (bitmask - 1); | |
1686 | ||
1687 | return 0; | |
1688 | } | |
1689 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
1690 | ||
1691 | /** | |
1692 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
1693 | * @kcontrol: mixer control | |
ac11a2b3 | 1694 | * @ucontrol: control element information |
db2a4165 FM |
1695 | * |
1696 | * Callback to set the value of a double enumerated mixer. | |
1697 | * | |
1698 | * Returns 0 for success. | |
1699 | */ | |
1700 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
1701 | struct snd_ctl_elem_value *ucontrol) | |
1702 | { | |
1703 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1704 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
1705 | unsigned int val; |
1706 | unsigned int mask, bitmask; | |
db2a4165 | 1707 | |
f8ba0b7b | 1708 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 1709 | ; |
f8ba0b7b | 1710 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
1711 | return -EINVAL; |
1712 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
1713 | mask = (bitmask - 1) << e->shift_l; | |
1714 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1715 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
1716 | return -EINVAL; |
1717 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1718 | mask |= (bitmask - 1) << e->shift_r; | |
1719 | } | |
1720 | ||
6c508c62 | 1721 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
1722 | } |
1723 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
1724 | ||
2e72f8e3 PU |
1725 | /** |
1726 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
1727 | * @kcontrol: mixer control | |
1728 | * @ucontrol: control element information | |
1729 | * | |
1730 | * Callback to get the value of a double semi enumerated mixer. | |
1731 | * | |
1732 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1733 | * used for handling bitfield coded enumeration for example. | |
1734 | * | |
1735 | * Returns 0 for success. | |
1736 | */ | |
1737 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1738 | struct snd_ctl_elem_value *ucontrol) | |
1739 | { | |
1740 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1741 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1742 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1743 | |
1744 | reg_val = snd_soc_read(codec, e->reg); | |
1745 | val = (reg_val >> e->shift_l) & e->mask; | |
1746 | for (mux = 0; mux < e->max; mux++) { | |
1747 | if (val == e->values[mux]) | |
1748 | break; | |
1749 | } | |
1750 | ucontrol->value.enumerated.item[0] = mux; | |
1751 | if (e->shift_l != e->shift_r) { | |
1752 | val = (reg_val >> e->shift_r) & e->mask; | |
1753 | for (mux = 0; mux < e->max; mux++) { | |
1754 | if (val == e->values[mux]) | |
1755 | break; | |
1756 | } | |
1757 | ucontrol->value.enumerated.item[1] = mux; | |
1758 | } | |
1759 | ||
1760 | return 0; | |
1761 | } | |
1762 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
1763 | ||
1764 | /** | |
1765 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
1766 | * @kcontrol: mixer control | |
1767 | * @ucontrol: control element information | |
1768 | * | |
1769 | * Callback to set the value of a double semi enumerated mixer. | |
1770 | * | |
1771 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1772 | * used for handling bitfield coded enumeration for example. | |
1773 | * | |
1774 | * Returns 0 for success. | |
1775 | */ | |
1776 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1777 | struct snd_ctl_elem_value *ucontrol) | |
1778 | { | |
1779 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1780 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
1781 | unsigned int val; |
1782 | unsigned int mask; | |
2e72f8e3 PU |
1783 | |
1784 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1785 | return -EINVAL; | |
1786 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1787 | mask = e->mask << e->shift_l; | |
1788 | if (e->shift_l != e->shift_r) { | |
1789 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1790 | return -EINVAL; | |
1791 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1792 | mask |= e->mask << e->shift_r; | |
1793 | } | |
1794 | ||
6c508c62 | 1795 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
1796 | } |
1797 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
1798 | ||
db2a4165 FM |
1799 | /** |
1800 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
1801 | * @kcontrol: mixer control | |
1802 | * @uinfo: control element information | |
1803 | * | |
1804 | * Callback to provide information about an external enumerated | |
1805 | * single mixer. | |
1806 | * | |
1807 | * Returns 0 for success. | |
1808 | */ | |
1809 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
1810 | struct snd_ctl_elem_info *uinfo) | |
1811 | { | |
1812 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1813 | ||
1814 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1815 | uinfo->count = 1; | |
f8ba0b7b | 1816 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1817 | |
f8ba0b7b JS |
1818 | if (uinfo->value.enumerated.item > e->max - 1) |
1819 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1820 | strcpy(uinfo->value.enumerated.name, |
1821 | e->texts[uinfo->value.enumerated.item]); | |
1822 | return 0; | |
1823 | } | |
1824 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
1825 | ||
1826 | /** | |
1827 | * snd_soc_info_volsw_ext - external single mixer info callback | |
1828 | * @kcontrol: mixer control | |
1829 | * @uinfo: control element information | |
1830 | * | |
1831 | * Callback to provide information about a single external mixer control. | |
1832 | * | |
1833 | * Returns 0 for success. | |
1834 | */ | |
1835 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
1836 | struct snd_ctl_elem_info *uinfo) | |
1837 | { | |
a7a4ac86 PZ |
1838 | int max = kcontrol->private_value; |
1839 | ||
fd5dfad9 | 1840 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1841 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1842 | else | |
1843 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1844 | |
db2a4165 FM |
1845 | uinfo->count = 1; |
1846 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1847 | uinfo->value.integer.max = max; |
db2a4165 FM |
1848 | return 0; |
1849 | } | |
1850 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
1851 | ||
db2a4165 FM |
1852 | /** |
1853 | * snd_soc_info_volsw - single mixer info callback | |
1854 | * @kcontrol: mixer control | |
1855 | * @uinfo: control element information | |
1856 | * | |
1857 | * Callback to provide information about a single mixer control. | |
1858 | * | |
1859 | * Returns 0 for success. | |
1860 | */ | |
1861 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
1862 | struct snd_ctl_elem_info *uinfo) | |
1863 | { | |
4eaa9819 JS |
1864 | struct soc_mixer_control *mc = |
1865 | (struct soc_mixer_control *)kcontrol->private_value; | |
1866 | int max = mc->max; | |
762b8df7 | 1867 | unsigned int shift = mc->shift; |
815ecf8d | 1868 | unsigned int rshift = mc->rshift; |
db2a4165 | 1869 | |
fd5dfad9 | 1870 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1871 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1872 | else | |
1873 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1874 | ||
db2a4165 FM |
1875 | uinfo->count = shift == rshift ? 1 : 2; |
1876 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1877 | uinfo->value.integer.max = max; |
db2a4165 FM |
1878 | return 0; |
1879 | } | |
1880 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
1881 | ||
1882 | /** | |
1883 | * snd_soc_get_volsw - single mixer get callback | |
1884 | * @kcontrol: mixer control | |
ac11a2b3 | 1885 | * @ucontrol: control element information |
db2a4165 FM |
1886 | * |
1887 | * Callback to get the value of a single mixer control. | |
1888 | * | |
1889 | * Returns 0 for success. | |
1890 | */ | |
1891 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
1892 | struct snd_ctl_elem_value *ucontrol) | |
1893 | { | |
4eaa9819 JS |
1894 | struct soc_mixer_control *mc = |
1895 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1896 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1897 | unsigned int reg = mc->reg; |
1898 | unsigned int shift = mc->shift; | |
1899 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1900 | int max = mc->max; |
815ecf8d JS |
1901 | unsigned int mask = (1 << fls(max)) - 1; |
1902 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1903 | |
1904 | ucontrol->value.integer.value[0] = | |
1905 | (snd_soc_read(codec, reg) >> shift) & mask; | |
1906 | if (shift != rshift) | |
1907 | ucontrol->value.integer.value[1] = | |
1908 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
1909 | if (invert) { | |
1910 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1911 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
1912 | if (shift != rshift) |
1913 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1914 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
1915 | } |
1916 | ||
1917 | return 0; | |
1918 | } | |
1919 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
1920 | ||
1921 | /** | |
1922 | * snd_soc_put_volsw - single mixer put callback | |
1923 | * @kcontrol: mixer control | |
ac11a2b3 | 1924 | * @ucontrol: control element information |
db2a4165 FM |
1925 | * |
1926 | * Callback to set the value of a single mixer control. | |
1927 | * | |
1928 | * Returns 0 for success. | |
1929 | */ | |
1930 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
1931 | struct snd_ctl_elem_value *ucontrol) | |
1932 | { | |
4eaa9819 JS |
1933 | struct soc_mixer_control *mc = |
1934 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1935 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1936 | unsigned int reg = mc->reg; |
1937 | unsigned int shift = mc->shift; | |
1938 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1939 | int max = mc->max; |
815ecf8d JS |
1940 | unsigned int mask = (1 << fls(max)) - 1; |
1941 | unsigned int invert = mc->invert; | |
46f5822f | 1942 | unsigned int val, val2, val_mask; |
db2a4165 FM |
1943 | |
1944 | val = (ucontrol->value.integer.value[0] & mask); | |
1945 | if (invert) | |
a7a4ac86 | 1946 | val = max - val; |
db2a4165 FM |
1947 | val_mask = mask << shift; |
1948 | val = val << shift; | |
1949 | if (shift != rshift) { | |
1950 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1951 | if (invert) | |
a7a4ac86 | 1952 | val2 = max - val2; |
db2a4165 FM |
1953 | val_mask |= mask << rshift; |
1954 | val |= val2 << rshift; | |
1955 | } | |
6c508c62 | 1956 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
1957 | } |
1958 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
1959 | ||
1960 | /** | |
1961 | * snd_soc_info_volsw_2r - double mixer info callback | |
1962 | * @kcontrol: mixer control | |
1963 | * @uinfo: control element information | |
1964 | * | |
1965 | * Callback to provide information about a double mixer control that | |
1966 | * spans 2 codec registers. | |
1967 | * | |
1968 | * Returns 0 for success. | |
1969 | */ | |
1970 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
1971 | struct snd_ctl_elem_info *uinfo) | |
1972 | { | |
4eaa9819 JS |
1973 | struct soc_mixer_control *mc = |
1974 | (struct soc_mixer_control *)kcontrol->private_value; | |
1975 | int max = mc->max; | |
a7a4ac86 | 1976 | |
fd5dfad9 | 1977 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1978 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1979 | else | |
1980 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1981 | |
db2a4165 FM |
1982 | uinfo->count = 2; |
1983 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1984 | uinfo->value.integer.max = max; |
db2a4165 FM |
1985 | return 0; |
1986 | } | |
1987 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
1988 | ||
1989 | /** | |
1990 | * snd_soc_get_volsw_2r - double mixer get callback | |
1991 | * @kcontrol: mixer control | |
ac11a2b3 | 1992 | * @ucontrol: control element information |
db2a4165 FM |
1993 | * |
1994 | * Callback to get the value of a double mixer control that spans 2 registers. | |
1995 | * | |
1996 | * Returns 0 for success. | |
1997 | */ | |
1998 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
1999 | struct snd_ctl_elem_value *ucontrol) | |
2000 | { | |
4eaa9819 JS |
2001 | struct soc_mixer_control *mc = |
2002 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2003 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2004 | unsigned int reg = mc->reg; |
2005 | unsigned int reg2 = mc->rreg; | |
2006 | unsigned int shift = mc->shift; | |
4eaa9819 | 2007 | int max = mc->max; |
46f5822f | 2008 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2009 | unsigned int invert = mc->invert; |
db2a4165 FM |
2010 | |
2011 | ucontrol->value.integer.value[0] = | |
2012 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2013 | ucontrol->value.integer.value[1] = | |
2014 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2015 | if (invert) { | |
2016 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2017 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2018 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2019 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2020 | } |
2021 | ||
2022 | return 0; | |
2023 | } | |
2024 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2025 | ||
2026 | /** | |
2027 | * snd_soc_put_volsw_2r - double mixer set callback | |
2028 | * @kcontrol: mixer control | |
ac11a2b3 | 2029 | * @ucontrol: control element information |
db2a4165 FM |
2030 | * |
2031 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2032 | * | |
2033 | * Returns 0 for success. | |
2034 | */ | |
2035 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2036 | struct snd_ctl_elem_value *ucontrol) | |
2037 | { | |
4eaa9819 JS |
2038 | struct soc_mixer_control *mc = |
2039 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2040 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2041 | unsigned int reg = mc->reg; |
2042 | unsigned int reg2 = mc->rreg; | |
2043 | unsigned int shift = mc->shift; | |
4eaa9819 | 2044 | int max = mc->max; |
815ecf8d JS |
2045 | unsigned int mask = (1 << fls(max)) - 1; |
2046 | unsigned int invert = mc->invert; | |
db2a4165 | 2047 | int err; |
46f5822f | 2048 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2049 | |
2050 | val_mask = mask << shift; | |
2051 | val = (ucontrol->value.integer.value[0] & mask); | |
2052 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2053 | ||
2054 | if (invert) { | |
a7a4ac86 PZ |
2055 | val = max - val; |
2056 | val2 = max - val2; | |
db2a4165 FM |
2057 | } |
2058 | ||
2059 | val = val << shift; | |
2060 | val2 = val2 << shift; | |
2061 | ||
6c508c62 | 2062 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2063 | if (err < 0) |
db2a4165 FM |
2064 | return err; |
2065 | ||
6c508c62 | 2066 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2067 | return err; |
2068 | } | |
2069 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2070 | ||
e13ac2e9 MB |
2071 | /** |
2072 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2073 | * @kcontrol: mixer control | |
2074 | * @uinfo: control element information | |
2075 | * | |
2076 | * Callback to provide information about a signed mixer control. | |
2077 | * | |
2078 | * Returns 0 for success. | |
2079 | */ | |
2080 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2081 | struct snd_ctl_elem_info *uinfo) | |
2082 | { | |
4eaa9819 JS |
2083 | struct soc_mixer_control *mc = |
2084 | (struct soc_mixer_control *)kcontrol->private_value; | |
2085 | int max = mc->max; | |
2086 | int min = mc->min; | |
e13ac2e9 MB |
2087 | |
2088 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2089 | uinfo->count = 2; | |
2090 | uinfo->value.integer.min = 0; | |
2091 | uinfo->value.integer.max = max-min; | |
2092 | return 0; | |
2093 | } | |
2094 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2095 | ||
2096 | /** | |
2097 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2098 | * @kcontrol: mixer control | |
ac11a2b3 | 2099 | * @ucontrol: control element information |
e13ac2e9 MB |
2100 | * |
2101 | * Callback to get the value of a signed mixer control. | |
2102 | * | |
2103 | * Returns 0 for success. | |
2104 | */ | |
2105 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2106 | struct snd_ctl_elem_value *ucontrol) | |
2107 | { | |
4eaa9819 JS |
2108 | struct soc_mixer_control *mc = |
2109 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2110 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2111 | unsigned int reg = mc->reg; |
4eaa9819 | 2112 | int min = mc->min; |
e13ac2e9 MB |
2113 | int val = snd_soc_read(codec, reg); |
2114 | ||
2115 | ucontrol->value.integer.value[0] = | |
2116 | ((signed char)(val & 0xff))-min; | |
2117 | ucontrol->value.integer.value[1] = | |
2118 | ((signed char)((val >> 8) & 0xff))-min; | |
2119 | return 0; | |
2120 | } | |
2121 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2122 | ||
2123 | /** | |
2124 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2125 | * @kcontrol: mixer control | |
ac11a2b3 | 2126 | * @ucontrol: control element information |
e13ac2e9 MB |
2127 | * |
2128 | * Callback to set the value of a signed mixer control. | |
2129 | * | |
2130 | * Returns 0 for success. | |
2131 | */ | |
2132 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2133 | struct snd_ctl_elem_value *ucontrol) | |
2134 | { | |
4eaa9819 JS |
2135 | struct soc_mixer_control *mc = |
2136 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2137 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2138 | unsigned int reg = mc->reg; |
4eaa9819 | 2139 | int min = mc->min; |
46f5822f | 2140 | unsigned int val; |
e13ac2e9 MB |
2141 | |
2142 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2143 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2144 | ||
6c508c62 | 2145 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2146 | } |
2147 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2148 | ||
8c6529db LG |
2149 | /** |
2150 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2151 | * @dai: DAI | |
2152 | * @clk_id: DAI specific clock ID | |
2153 | * @freq: new clock frequency in Hz | |
2154 | * @dir: new clock direction - input/output. | |
2155 | * | |
2156 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2157 | */ | |
2158 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2159 | unsigned int freq, int dir) | |
2160 | { | |
3f1a4d82 | 2161 | if (dai->ops && dai->ops->set_sysclk) |
6335d055 | 2162 | return dai->ops->set_sysclk(dai, clk_id, freq, dir); |
8c6529db LG |
2163 | else |
2164 | return -EINVAL; | |
2165 | } | |
2166 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2167 | ||
2168 | /** | |
2169 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2170 | * @dai: DAI | |
ac11a2b3 | 2171 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2172 | * @div: new clock divisor. |
2173 | * | |
2174 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2175 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2176 | * and frame clocks as low as possible to save system power. | |
2177 | */ | |
2178 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2179 | int div_id, int div) | |
2180 | { | |
3f1a4d82 | 2181 | if (dai->ops && dai->ops->set_clkdiv) |
6335d055 | 2182 | return dai->ops->set_clkdiv(dai, div_id, div); |
8c6529db LG |
2183 | else |
2184 | return -EINVAL; | |
2185 | } | |
2186 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2187 | ||
2188 | /** | |
2189 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2190 | * @dai: DAI | |
2191 | * @pll_id: DAI specific PLL ID | |
85488037 | 2192 | * @source: DAI specific source for the PLL |
8c6529db LG |
2193 | * @freq_in: PLL input clock frequency in Hz |
2194 | * @freq_out: requested PLL output clock frequency in Hz | |
2195 | * | |
2196 | * Configures and enables PLL to generate output clock based on input clock. | |
2197 | */ | |
85488037 MB |
2198 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2199 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2200 | { |
3f1a4d82 | 2201 | if (dai->ops && dai->ops->set_pll) |
85488037 MB |
2202 | return dai->ops->set_pll(dai, pll_id, source, |
2203 | freq_in, freq_out); | |
8c6529db LG |
2204 | else |
2205 | return -EINVAL; | |
2206 | } | |
2207 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2208 | ||
2209 | /** | |
2210 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2211 | * @dai: DAI | |
8c6529db LG |
2212 | * @fmt: SND_SOC_DAIFMT_ format value. |
2213 | * | |
2214 | * Configures the DAI hardware format and clocking. | |
2215 | */ | |
2216 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2217 | { | |
3f1a4d82 | 2218 | if (dai->ops && dai->ops->set_fmt) |
6335d055 | 2219 | return dai->ops->set_fmt(dai, fmt); |
8c6529db LG |
2220 | else |
2221 | return -EINVAL; | |
2222 | } | |
2223 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2224 | ||
2225 | /** | |
2226 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2227 | * @dai: DAI | |
a5479e38 DR |
2228 | * @tx_mask: bitmask representing active TX slots. |
2229 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2230 | * @slots: Number of slots in use. |
a5479e38 | 2231 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2232 | * |
2233 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2234 | * specific. | |
2235 | */ | |
2236 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2237 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2238 | { |
3f1a4d82 | 2239 | if (dai->ops && dai->ops->set_tdm_slot) |
a5479e38 DR |
2240 | return dai->ops->set_tdm_slot(dai, tx_mask, rx_mask, |
2241 | slots, slot_width); | |
8c6529db LG |
2242 | else |
2243 | return -EINVAL; | |
2244 | } | |
2245 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2246 | ||
472df3cb BS |
2247 | /** |
2248 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2249 | * @dai: DAI | |
2250 | * @tx_num: how many TX channels | |
2251 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2252 | * 0~num-1 uses | |
2253 | * @rx_num: how many RX channels | |
2254 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2255 | * 0~num-1 uses | |
2256 | * | |
2257 | * configure the relationship between channel number and TDM slot number. | |
2258 | */ | |
2259 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2260 | unsigned int tx_num, unsigned int *tx_slot, | |
2261 | unsigned int rx_num, unsigned int *rx_slot) | |
2262 | { | |
2263 | if (dai->ops && dai->ops->set_channel_map) | |
2264 | return dai->ops->set_channel_map(dai, tx_num, tx_slot, | |
2265 | rx_num, rx_slot); | |
2266 | else | |
2267 | return -EINVAL; | |
2268 | } | |
2269 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2270 | ||
8c6529db LG |
2271 | /** |
2272 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2273 | * @dai: DAI | |
2274 | * @tristate: tristate enable | |
2275 | * | |
2276 | * Tristates the DAI so that others can use it. | |
2277 | */ | |
2278 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2279 | { | |
3f1a4d82 | 2280 | if (dai->ops && dai->ops->set_tristate) |
6335d055 | 2281 | return dai->ops->set_tristate(dai, tristate); |
8c6529db LG |
2282 | else |
2283 | return -EINVAL; | |
2284 | } | |
2285 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2286 | ||
2287 | /** | |
2288 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2289 | * @dai: DAI | |
2290 | * @mute: mute enable | |
2291 | * | |
2292 | * Mutes the DAI DAC. | |
2293 | */ | |
2294 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2295 | { | |
3f1a4d82 | 2296 | if (dai->ops && dai->ops->digital_mute) |
6335d055 | 2297 | return dai->ops->digital_mute(dai, mute); |
8c6529db LG |
2298 | else |
2299 | return -EINVAL; | |
2300 | } | |
2301 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2302 | ||
c5af3a2e MB |
2303 | /** |
2304 | * snd_soc_register_card - Register a card with the ASoC core | |
2305 | * | |
ac11a2b3 | 2306 | * @card: Card to register |
c5af3a2e MB |
2307 | * |
2308 | * Note that currently this is an internal only function: it will be | |
2309 | * exposed to machine drivers after further backporting of ASoC v2 | |
2310 | * registration APIs. | |
2311 | */ | |
2312 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2313 | { | |
2314 | if (!card->name || !card->dev) | |
2315 | return -EINVAL; | |
2316 | ||
2317 | INIT_LIST_HEAD(&card->list); | |
2318 | card->instantiated = 0; | |
2319 | ||
2320 | mutex_lock(&client_mutex); | |
2321 | list_add(&card->list, &card_list); | |
435c5e25 | 2322 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2323 | mutex_unlock(&client_mutex); |
2324 | ||
2325 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2326 | ||
2327 | return 0; | |
2328 | } | |
2329 | ||
2330 | /** | |
2331 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2332 | * | |
ac11a2b3 | 2333 | * @card: Card to unregister |
c5af3a2e MB |
2334 | * |
2335 | * Note that currently this is an internal only function: it will be | |
2336 | * exposed to machine drivers after further backporting of ASoC v2 | |
2337 | * registration APIs. | |
2338 | */ | |
2339 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2340 | { | |
2341 | mutex_lock(&client_mutex); | |
2342 | list_del(&card->list); | |
2343 | mutex_unlock(&client_mutex); | |
2344 | ||
2345 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); | |
2346 | ||
2347 | return 0; | |
2348 | } | |
2349 | ||
9115171a MB |
2350 | /** |
2351 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2352 | * | |
ac11a2b3 | 2353 | * @dai: DAI to register |
9115171a MB |
2354 | */ |
2355 | int snd_soc_register_dai(struct snd_soc_dai *dai) | |
2356 | { | |
2357 | if (!dai->name) | |
2358 | return -EINVAL; | |
2359 | ||
2360 | /* The device should become mandatory over time */ | |
2361 | if (!dai->dev) | |
2362 | printk(KERN_WARNING "No device for DAI %s\n", dai->name); | |
2363 | ||
6335d055 EM |
2364 | if (!dai->ops) |
2365 | dai->ops = &null_dai_ops; | |
2366 | ||
9115171a MB |
2367 | INIT_LIST_HEAD(&dai->list); |
2368 | ||
2369 | mutex_lock(&client_mutex); | |
2370 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2371 | snd_soc_instantiate_cards(); |
9115171a MB |
2372 | mutex_unlock(&client_mutex); |
2373 | ||
2374 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2375 | ||
2376 | return 0; | |
2377 | } | |
2378 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2379 | ||
2380 | /** | |
2381 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2382 | * | |
ac11a2b3 | 2383 | * @dai: DAI to unregister |
9115171a MB |
2384 | */ |
2385 | void snd_soc_unregister_dai(struct snd_soc_dai *dai) | |
2386 | { | |
2387 | mutex_lock(&client_mutex); | |
2388 | list_del(&dai->list); | |
2389 | mutex_unlock(&client_mutex); | |
2390 | ||
2391 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
2392 | } | |
2393 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
2394 | ||
2395 | /** | |
2396 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
2397 | * | |
ac11a2b3 MB |
2398 | * @dai: Array of DAIs to register |
2399 | * @count: Number of DAIs | |
9115171a MB |
2400 | */ |
2401 | int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count) | |
2402 | { | |
2403 | int i, ret; | |
2404 | ||
2405 | for (i = 0; i < count; i++) { | |
2406 | ret = snd_soc_register_dai(&dai[i]); | |
2407 | if (ret != 0) | |
2408 | goto err; | |
2409 | } | |
2410 | ||
2411 | return 0; | |
2412 | ||
2413 | err: | |
2414 | for (i--; i >= 0; i--) | |
2415 | snd_soc_unregister_dai(&dai[i]); | |
2416 | ||
2417 | return ret; | |
2418 | } | |
2419 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
2420 | ||
2421 | /** | |
2422 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
2423 | * | |
ac11a2b3 MB |
2424 | * @dai: Array of DAIs to unregister |
2425 | * @count: Number of DAIs | |
9115171a MB |
2426 | */ |
2427 | void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count) | |
2428 | { | |
2429 | int i; | |
2430 | ||
2431 | for (i = 0; i < count; i++) | |
2432 | snd_soc_unregister_dai(&dai[i]); | |
2433 | } | |
2434 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
2435 | ||
12a48a8c MB |
2436 | /** |
2437 | * snd_soc_register_platform - Register a platform with the ASoC core | |
2438 | * | |
ac11a2b3 | 2439 | * @platform: platform to register |
12a48a8c MB |
2440 | */ |
2441 | int snd_soc_register_platform(struct snd_soc_platform *platform) | |
2442 | { | |
2443 | if (!platform->name) | |
2444 | return -EINVAL; | |
2445 | ||
2446 | INIT_LIST_HEAD(&platform->list); | |
2447 | ||
2448 | mutex_lock(&client_mutex); | |
2449 | list_add(&platform->list, &platform_list); | |
435c5e25 | 2450 | snd_soc_instantiate_cards(); |
12a48a8c MB |
2451 | mutex_unlock(&client_mutex); |
2452 | ||
2453 | pr_debug("Registered platform '%s'\n", platform->name); | |
2454 | ||
2455 | return 0; | |
2456 | } | |
2457 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2458 | ||
2459 | /** | |
2460 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2461 | * | |
ac11a2b3 | 2462 | * @platform: platform to unregister |
12a48a8c MB |
2463 | */ |
2464 | void snd_soc_unregister_platform(struct snd_soc_platform *platform) | |
2465 | { | |
2466 | mutex_lock(&client_mutex); | |
2467 | list_del(&platform->list); | |
2468 | mutex_unlock(&client_mutex); | |
2469 | ||
2470 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
2471 | } | |
2472 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2473 | ||
151ab22c MB |
2474 | static u64 codec_format_map[] = { |
2475 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2476 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2477 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2478 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2479 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2480 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2481 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2482 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2483 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2484 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2485 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2486 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2487 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2488 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2489 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2490 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2491 | }; | |
2492 | ||
2493 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2494 | * the endianness of the data but we're using the CPU format | |
2495 | * definitions which do need to include endianness so we ensure that | |
2496 | * codec DAIs always have both big and little endian variants set. | |
2497 | */ | |
2498 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2499 | { | |
2500 | int i; | |
2501 | ||
2502 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2503 | if (stream->formats & codec_format_map[i]) | |
2504 | stream->formats |= codec_format_map[i]; | |
2505 | } | |
2506 | ||
0d0cf00a MB |
2507 | /** |
2508 | * snd_soc_register_codec - Register a codec with the ASoC core | |
2509 | * | |
ac11a2b3 | 2510 | * @codec: codec to register |
0d0cf00a MB |
2511 | */ |
2512 | int snd_soc_register_codec(struct snd_soc_codec *codec) | |
2513 | { | |
151ab22c MB |
2514 | int i; |
2515 | ||
0d0cf00a MB |
2516 | if (!codec->name) |
2517 | return -EINVAL; | |
2518 | ||
2519 | /* The device should become mandatory over time */ | |
2520 | if (!codec->dev) | |
2521 | printk(KERN_WARNING "No device for codec %s\n", codec->name); | |
2522 | ||
2523 | INIT_LIST_HEAD(&codec->list); | |
2524 | ||
151ab22c MB |
2525 | for (i = 0; i < codec->num_dai; i++) { |
2526 | fixup_codec_formats(&codec->dai[i].playback); | |
2527 | fixup_codec_formats(&codec->dai[i].capture); | |
2528 | } | |
2529 | ||
0d0cf00a MB |
2530 | mutex_lock(&client_mutex); |
2531 | list_add(&codec->list, &codec_list); | |
2532 | snd_soc_instantiate_cards(); | |
2533 | mutex_unlock(&client_mutex); | |
2534 | ||
2535 | pr_debug("Registered codec '%s'\n", codec->name); | |
2536 | ||
2537 | return 0; | |
2538 | } | |
2539 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
2540 | ||
2541 | /** | |
2542 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
2543 | * | |
ac11a2b3 | 2544 | * @codec: codec to unregister |
0d0cf00a MB |
2545 | */ |
2546 | void snd_soc_unregister_codec(struct snd_soc_codec *codec) | |
2547 | { | |
2548 | mutex_lock(&client_mutex); | |
2549 | list_del(&codec->list); | |
2550 | mutex_unlock(&client_mutex); | |
2551 | ||
2552 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
2553 | } | |
2554 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
2555 | ||
c9b3a40f | 2556 | static int __init snd_soc_init(void) |
db2a4165 | 2557 | { |
384c89e2 MB |
2558 | #ifdef CONFIG_DEBUG_FS |
2559 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
2560 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
2561 | printk(KERN_WARNING | |
2562 | "ASoC: Failed to create debugfs directory\n"); | |
2563 | debugfs_root = NULL; | |
2564 | } | |
2565 | #endif | |
2566 | ||
db2a4165 FM |
2567 | return platform_driver_register(&soc_driver); |
2568 | } | |
2569 | ||
7d8c16a6 | 2570 | static void __exit snd_soc_exit(void) |
db2a4165 | 2571 | { |
384c89e2 MB |
2572 | #ifdef CONFIG_DEBUG_FS |
2573 | debugfs_remove_recursive(debugfs_root); | |
2574 | #endif | |
3ff3f64b | 2575 | platform_driver_unregister(&soc_driver); |
db2a4165 FM |
2576 | } |
2577 | ||
2578 | module_init(snd_soc_init); | |
2579 | module_exit(snd_soc_exit); | |
2580 | ||
2581 | /* Module information */ | |
d331124d | 2582 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
2583 | MODULE_DESCRIPTION("ALSA SoC Core"); |
2584 | MODULE_LICENSE("GPL"); | |
8b45a209 | 2585 | MODULE_ALIAS("platform:soc-audio"); |