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Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 LG |
5 | * Copyright 2005 Openedhand Ltd. |
6 | * | |
d331124d | 7 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
8 | * with code, comments and ideas from :- |
9 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
15 | * | |
db2a4165 FM |
16 | * TODO: |
17 | * o Add hw rules to enforce rates, etc. | |
18 | * o More testing with other codecs/machines. | |
19 | * o Add more codecs and platforms to ensure good API coverage. | |
20 | * o Support TDM on PCM and I2S | |
21 | */ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/moduleparam.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/pm.h> | |
28 | #include <linux/bitops.h> | |
12ef193d | 29 | #include <linux/debugfs.h> |
db2a4165 | 30 | #include <linux/platform_device.h> |
5a0e3ad6 | 31 | #include <linux/slab.h> |
474828a4 | 32 | #include <sound/ac97_codec.h> |
db2a4165 FM |
33 | #include <sound/core.h> |
34 | #include <sound/pcm.h> | |
35 | #include <sound/pcm_params.h> | |
36 | #include <sound/soc.h> | |
37 | #include <sound/soc-dapm.h> | |
38 | #include <sound/initval.h> | |
39 | ||
db2a4165 | 40 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
41 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
42 | ||
384c89e2 MB |
43 | #ifdef CONFIG_DEBUG_FS |
44 | static struct dentry *debugfs_root; | |
45 | #endif | |
46 | ||
c5af3a2e MB |
47 | static DEFINE_MUTEX(client_mutex); |
48 | static LIST_HEAD(card_list); | |
9115171a | 49 | static LIST_HEAD(dai_list); |
12a48a8c | 50 | static LIST_HEAD(platform_list); |
0d0cf00a | 51 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
52 | |
53 | static int snd_soc_register_card(struct snd_soc_card *card); | |
54 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
55 | ||
db2a4165 FM |
56 | /* |
57 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
58 | * It can be used to eliminate pops between different playback streams, e.g. | |
59 | * between two audio tracks. | |
60 | */ | |
61 | static int pmdown_time = 5000; | |
62 | module_param(pmdown_time, int, 0); | |
63 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
64 | ||
965ac42c LG |
65 | /* |
66 | * This function forces any delayed work to be queued and run. | |
67 | */ | |
68 | static int run_delayed_work(struct delayed_work *dwork) | |
69 | { | |
70 | int ret; | |
71 | ||
72 | /* cancel any work waiting to be queued. */ | |
73 | ret = cancel_delayed_work(dwork); | |
74 | ||
75 | /* if there was any work waiting then we run it now and | |
76 | * wait for it's completion */ | |
77 | if (ret) { | |
78 | schedule_delayed_work(dwork, 0); | |
79 | flush_scheduled_work(); | |
80 | } | |
81 | return ret; | |
82 | } | |
83 | ||
2624d5fa MB |
84 | /* codec register dump */ |
85 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
86 | { | |
87 | int i, step = 1, count = 0; | |
88 | ||
89 | if (!codec->reg_cache_size) | |
90 | return 0; | |
91 | ||
92 | if (codec->reg_cache_step) | |
93 | step = codec->reg_cache_step; | |
94 | ||
95 | count += sprintf(buf, "%s registers\n", codec->name); | |
96 | for (i = 0; i < codec->reg_cache_size; i += step) { | |
97 | if (codec->readable_register && !codec->readable_register(i)) | |
98 | continue; | |
99 | ||
100 | count += sprintf(buf + count, "%2x: ", i); | |
101 | if (count >= PAGE_SIZE - 1) | |
102 | break; | |
103 | ||
104 | if (codec->display_register) | |
105 | count += codec->display_register(codec, buf + count, | |
106 | PAGE_SIZE - count, i); | |
107 | else | |
108 | count += snprintf(buf + count, PAGE_SIZE - count, | |
109 | "%4x", codec->read(codec, i)); | |
110 | ||
111 | if (count >= PAGE_SIZE - 1) | |
112 | break; | |
113 | ||
114 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
115 | if (count >= PAGE_SIZE - 1) | |
116 | break; | |
117 | } | |
118 | ||
119 | /* Truncate count; min() would cause a warning */ | |
120 | if (count >= PAGE_SIZE) | |
121 | count = PAGE_SIZE - 1; | |
122 | ||
123 | return count; | |
124 | } | |
125 | static ssize_t codec_reg_show(struct device *dev, | |
126 | struct device_attribute *attr, char *buf) | |
127 | { | |
128 | struct snd_soc_device *devdata = dev_get_drvdata(dev); | |
129 | return soc_codec_reg_show(devdata->card->codec, buf); | |
130 | } | |
131 | ||
132 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
133 | ||
dbe21408 MB |
134 | static ssize_t pmdown_time_show(struct device *dev, |
135 | struct device_attribute *attr, char *buf) | |
136 | { | |
137 | struct snd_soc_device *socdev = dev_get_drvdata(dev); | |
138 | struct snd_soc_card *card = socdev->card; | |
139 | ||
6c5f1fed | 140 | return sprintf(buf, "%ld\n", card->pmdown_time); |
dbe21408 MB |
141 | } |
142 | ||
143 | static ssize_t pmdown_time_set(struct device *dev, | |
144 | struct device_attribute *attr, | |
145 | const char *buf, size_t count) | |
146 | { | |
147 | struct snd_soc_device *socdev = dev_get_drvdata(dev); | |
148 | struct snd_soc_card *card = socdev->card; | |
149 | ||
150 | strict_strtol(buf, 10, &card->pmdown_time); | |
151 | ||
152 | return count; | |
153 | } | |
154 | ||
155 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
156 | ||
2624d5fa MB |
157 | #ifdef CONFIG_DEBUG_FS |
158 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
159 | { | |
160 | file->private_data = inode->i_private; | |
161 | return 0; | |
162 | } | |
163 | ||
164 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
165 | size_t count, loff_t *ppos) | |
166 | { | |
167 | ssize_t ret; | |
168 | struct snd_soc_codec *codec = file->private_data; | |
169 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
170 | if (!buf) | |
171 | return -ENOMEM; | |
172 | ret = soc_codec_reg_show(codec, buf); | |
173 | if (ret >= 0) | |
174 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
175 | kfree(buf); | |
176 | return ret; | |
177 | } | |
178 | ||
179 | static ssize_t codec_reg_write_file(struct file *file, | |
180 | const char __user *user_buf, size_t count, loff_t *ppos) | |
181 | { | |
182 | char buf[32]; | |
183 | int buf_size; | |
184 | char *start = buf; | |
185 | unsigned long reg, value; | |
186 | int step = 1; | |
187 | struct snd_soc_codec *codec = file->private_data; | |
188 | ||
189 | buf_size = min(count, (sizeof(buf)-1)); | |
190 | if (copy_from_user(buf, user_buf, buf_size)) | |
191 | return -EFAULT; | |
192 | buf[buf_size] = 0; | |
193 | ||
194 | if (codec->reg_cache_step) | |
195 | step = codec->reg_cache_step; | |
196 | ||
197 | while (*start == ' ') | |
198 | start++; | |
199 | reg = simple_strtoul(start, &start, 16); | |
200 | if ((reg >= codec->reg_cache_size) || (reg % step)) | |
201 | return -EINVAL; | |
202 | while (*start == ' ') | |
203 | start++; | |
204 | if (strict_strtoul(start, 16, &value)) | |
205 | return -EINVAL; | |
206 | codec->write(codec, reg, value); | |
207 | return buf_size; | |
208 | } | |
209 | ||
210 | static const struct file_operations codec_reg_fops = { | |
211 | .open = codec_reg_open_file, | |
212 | .read = codec_reg_read_file, | |
213 | .write = codec_reg_write_file, | |
214 | }; | |
215 | ||
216 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
217 | { | |
218 | char codec_root[128]; | |
219 | ||
220 | if (codec->dev) | |
221 | snprintf(codec_root, sizeof(codec_root), | |
222 | "%s.%s", codec->name, dev_name(codec->dev)); | |
223 | else | |
224 | snprintf(codec_root, sizeof(codec_root), | |
225 | "%s", codec->name); | |
226 | ||
227 | codec->debugfs_codec_root = debugfs_create_dir(codec_root, | |
228 | debugfs_root); | |
229 | if (!codec->debugfs_codec_root) { | |
230 | printk(KERN_WARNING | |
231 | "ASoC: Failed to create codec debugfs directory\n"); | |
232 | return; | |
233 | } | |
234 | ||
235 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
236 | codec->debugfs_codec_root, | |
237 | codec, &codec_reg_fops); | |
238 | if (!codec->debugfs_reg) | |
239 | printk(KERN_WARNING | |
240 | "ASoC: Failed to create codec register debugfs file\n"); | |
241 | ||
242 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744, | |
243 | codec->debugfs_codec_root, | |
244 | &codec->pop_time); | |
245 | if (!codec->debugfs_pop_time) | |
246 | printk(KERN_WARNING | |
247 | "Failed to create pop time debugfs file\n"); | |
248 | ||
249 | codec->debugfs_dapm = debugfs_create_dir("dapm", | |
250 | codec->debugfs_codec_root); | |
251 | if (!codec->debugfs_dapm) | |
252 | printk(KERN_WARNING | |
253 | "Failed to create DAPM debugfs directory\n"); | |
254 | ||
255 | snd_soc_dapm_debugfs_init(codec); | |
256 | } | |
257 | ||
258 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
259 | { | |
260 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
261 | } | |
262 | ||
263 | #else | |
264 | ||
265 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
266 | { | |
267 | } | |
268 | ||
269 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
270 | { | |
271 | } | |
272 | #endif | |
273 | ||
db2a4165 FM |
274 | #ifdef CONFIG_SND_SOC_AC97_BUS |
275 | /* unregister ac97 codec */ | |
276 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
277 | { | |
278 | if (codec->ac97->dev.bus) | |
279 | device_unregister(&codec->ac97->dev); | |
280 | return 0; | |
281 | } | |
282 | ||
283 | /* stop no dev release warning */ | |
284 | static void soc_ac97_device_release(struct device *dev){} | |
285 | ||
286 | /* register ac97 codec to bus */ | |
287 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
288 | { | |
289 | int err; | |
290 | ||
291 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 292 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
293 | codec->ac97->dev.release = soc_ac97_device_release; |
294 | ||
bb072bf0 KS |
295 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
296 | codec->card->number, 0, codec->name); | |
db2a4165 FM |
297 | err = device_register(&codec->ac97->dev); |
298 | if (err < 0) { | |
299 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
300 | codec->ac97->dev.bus = NULL; | |
301 | return err; | |
302 | } | |
303 | return 0; | |
304 | } | |
305 | #endif | |
306 | ||
06f409d7 MB |
307 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
308 | { | |
309 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
310 | struct snd_soc_device *socdev = rtd->socdev; | |
311 | struct snd_soc_card *card = socdev->card; | |
312 | struct snd_soc_dai_link *machine = rtd->dai; | |
313 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; | |
314 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
315 | int ret; | |
316 | ||
317 | if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates || | |
318 | machine->symmetric_rates) { | |
319 | dev_dbg(card->dev, "Symmetry forces %dHz rate\n", | |
320 | machine->rate); | |
321 | ||
322 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
323 | SNDRV_PCM_HW_PARAM_RATE, | |
324 | machine->rate, | |
325 | machine->rate); | |
326 | if (ret < 0) { | |
327 | dev_err(card->dev, | |
328 | "Unable to apply rate symmetry constraint: %d\n", ret); | |
329 | return ret; | |
330 | } | |
331 | } | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
db2a4165 FM |
336 | /* |
337 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
338 | * then initialized and any private data can be allocated. This also calls | |
339 | * startup for the cpu DAI, platform, machine and codec DAI. | |
340 | */ | |
341 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
342 | { | |
343 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
344 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 345 | struct snd_soc_card *card = socdev->card; |
db2a4165 | 346 | struct snd_pcm_runtime *runtime = substream->runtime; |
cb666e5b | 347 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 348 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
349 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
350 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
351 | int ret = 0; |
352 | ||
353 | mutex_lock(&pcm_mutex); | |
354 | ||
355 | /* startup the audio subsystem */ | |
6335d055 EM |
356 | if (cpu_dai->ops->startup) { |
357 | ret = cpu_dai->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
358 | if (ret < 0) { |
359 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 360 | cpu_dai->name); |
db2a4165 FM |
361 | goto out; |
362 | } | |
363 | } | |
364 | ||
365 | if (platform->pcm_ops->open) { | |
366 | ret = platform->pcm_ops->open(substream); | |
367 | if (ret < 0) { | |
368 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
369 | goto platform_err; | |
370 | } | |
371 | } | |
372 | ||
6335d055 EM |
373 | if (codec_dai->ops->startup) { |
374 | ret = codec_dai->ops->startup(substream, codec_dai); | |
db2a4165 | 375 | if (ret < 0) { |
cb666e5b LG |
376 | printk(KERN_ERR "asoc: can't open codec %s\n", |
377 | codec_dai->name); | |
378 | goto codec_dai_err; | |
db2a4165 FM |
379 | } |
380 | } | |
381 | ||
cb666e5b LG |
382 | if (machine->ops && machine->ops->startup) { |
383 | ret = machine->ops->startup(substream); | |
db2a4165 | 384 | if (ret < 0) { |
cb666e5b LG |
385 | printk(KERN_ERR "asoc: %s startup failed\n", machine->name); |
386 | goto machine_err; | |
db2a4165 FM |
387 | } |
388 | } | |
389 | ||
db2a4165 FM |
390 | /* Check that the codec and cpu DAI's are compatible */ |
391 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
392 | runtime->hw.rate_min = | |
3ff3f64b MB |
393 | max(codec_dai->playback.rate_min, |
394 | cpu_dai->playback.rate_min); | |
db2a4165 | 395 | runtime->hw.rate_max = |
3ff3f64b MB |
396 | min(codec_dai->playback.rate_max, |
397 | cpu_dai->playback.rate_max); | |
db2a4165 | 398 | runtime->hw.channels_min = |
cb666e5b LG |
399 | max(codec_dai->playback.channels_min, |
400 | cpu_dai->playback.channels_min); | |
db2a4165 | 401 | runtime->hw.channels_max = |
cb666e5b LG |
402 | min(codec_dai->playback.channels_max, |
403 | cpu_dai->playback.channels_max); | |
404 | runtime->hw.formats = | |
405 | codec_dai->playback.formats & cpu_dai->playback.formats; | |
406 | runtime->hw.rates = | |
407 | codec_dai->playback.rates & cpu_dai->playback.rates; | |
db2a4165 FM |
408 | } else { |
409 | runtime->hw.rate_min = | |
3ff3f64b MB |
410 | max(codec_dai->capture.rate_min, |
411 | cpu_dai->capture.rate_min); | |
db2a4165 | 412 | runtime->hw.rate_max = |
3ff3f64b MB |
413 | min(codec_dai->capture.rate_max, |
414 | cpu_dai->capture.rate_max); | |
db2a4165 | 415 | runtime->hw.channels_min = |
cb666e5b LG |
416 | max(codec_dai->capture.channels_min, |
417 | cpu_dai->capture.channels_min); | |
db2a4165 | 418 | runtime->hw.channels_max = |
cb666e5b LG |
419 | min(codec_dai->capture.channels_max, |
420 | cpu_dai->capture.channels_max); | |
421 | runtime->hw.formats = | |
422 | codec_dai->capture.formats & cpu_dai->capture.formats; | |
423 | runtime->hw.rates = | |
424 | codec_dai->capture.rates & cpu_dai->capture.rates; | |
db2a4165 FM |
425 | } |
426 | ||
427 | snd_pcm_limit_hw_rates(runtime); | |
428 | if (!runtime->hw.rates) { | |
429 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 430 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 431 | goto config_err; |
db2a4165 FM |
432 | } |
433 | if (!runtime->hw.formats) { | |
434 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 435 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 436 | goto config_err; |
db2a4165 FM |
437 | } |
438 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
439 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
cb666e5b | 440 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 441 | goto config_err; |
db2a4165 FM |
442 | } |
443 | ||
06f409d7 MB |
444 | /* Symmetry only applies if we've already got an active stream. */ |
445 | if (cpu_dai->active || codec_dai->active) { | |
446 | ret = soc_pcm_apply_symmetry(substream); | |
447 | if (ret != 0) | |
bb1c0478 | 448 | goto config_err; |
06f409d7 MB |
449 | } |
450 | ||
f24368c2 MB |
451 | pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name); |
452 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); | |
453 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
454 | runtime->hw.channels_max); | |
455 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
456 | runtime->hw.rate_max); | |
db2a4165 | 457 | |
db2a4165 | 458 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
cb666e5b | 459 | cpu_dai->playback.active = codec_dai->playback.active = 1; |
db2a4165 | 460 | else |
cb666e5b LG |
461 | cpu_dai->capture.active = codec_dai->capture.active = 1; |
462 | cpu_dai->active = codec_dai->active = 1; | |
463 | cpu_dai->runtime = runtime; | |
6627a653 | 464 | card->codec->active++; |
db2a4165 FM |
465 | mutex_unlock(&pcm_mutex); |
466 | return 0; | |
467 | ||
bb1c0478 | 468 | config_err: |
db2a4165 FM |
469 | if (machine->ops && machine->ops->shutdown) |
470 | machine->ops->shutdown(substream); | |
471 | ||
bb1c0478 JB |
472 | machine_err: |
473 | if (codec_dai->ops->shutdown) | |
474 | codec_dai->ops->shutdown(substream, codec_dai); | |
475 | ||
cb666e5b | 476 | codec_dai_err: |
db2a4165 FM |
477 | if (platform->pcm_ops->close) |
478 | platform->pcm_ops->close(substream); | |
479 | ||
480 | platform_err: | |
6335d055 EM |
481 | if (cpu_dai->ops->shutdown) |
482 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
483 | out: |
484 | mutex_unlock(&pcm_mutex); | |
485 | return ret; | |
486 | } | |
487 | ||
488 | /* | |
3a4fa0a2 | 489 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
490 | * This is to ensure there are no pops or clicks in between any music tracks |
491 | * due to DAPM power cycling. | |
492 | */ | |
4484bb2e | 493 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 494 | { |
6308419a MB |
495 | struct snd_soc_card *card = container_of(work, struct snd_soc_card, |
496 | delayed_work.work); | |
6627a653 | 497 | struct snd_soc_codec *codec = card->codec; |
3c4b266f | 498 | struct snd_soc_dai *codec_dai; |
db2a4165 FM |
499 | int i; |
500 | ||
501 | mutex_lock(&pcm_mutex); | |
3ff3f64b | 502 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
503 | codec_dai = &codec->dai[i]; |
504 | ||
f24368c2 MB |
505 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", |
506 | codec_dai->playback.stream_name, | |
507 | codec_dai->playback.active ? "active" : "inactive", | |
508 | codec_dai->pop_wait ? "yes" : "no"); | |
db2a4165 FM |
509 | |
510 | /* are we waiting on this codec DAI stream */ | |
511 | if (codec_dai->pop_wait == 1) { | |
db2a4165 | 512 | codec_dai->pop_wait = 0; |
0b4d221b LG |
513 | snd_soc_dapm_stream_event(codec, |
514 | codec_dai->playback.stream_name, | |
db2a4165 | 515 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
516 | } |
517 | } | |
518 | mutex_unlock(&pcm_mutex); | |
519 | } | |
520 | ||
521 | /* | |
522 | * Called by ALSA when a PCM substream is closed. Private data can be | |
523 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
524 | * shutdown. | |
525 | */ | |
526 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
527 | { | |
528 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
529 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 530 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 531 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 532 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
533 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
534 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 535 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
536 | |
537 | mutex_lock(&pcm_mutex); | |
538 | ||
539 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
cb666e5b | 540 | cpu_dai->playback.active = codec_dai->playback.active = 0; |
db2a4165 | 541 | else |
cb666e5b | 542 | cpu_dai->capture.active = codec_dai->capture.active = 0; |
db2a4165 | 543 | |
cb666e5b LG |
544 | if (codec_dai->playback.active == 0 && |
545 | codec_dai->capture.active == 0) { | |
546 | cpu_dai->active = codec_dai->active = 0; | |
db2a4165 FM |
547 | } |
548 | codec->active--; | |
549 | ||
6010b2da MB |
550 | /* Muting the DAC suppresses artifacts caused during digital |
551 | * shutdown, for example from stopping clocks. | |
552 | */ | |
553 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
554 | snd_soc_dai_digital_mute(codec_dai, 1); | |
555 | ||
6335d055 EM |
556 | if (cpu_dai->ops->shutdown) |
557 | cpu_dai->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 558 | |
6335d055 EM |
559 | if (codec_dai->ops->shutdown) |
560 | codec_dai->ops->shutdown(substream, codec_dai); | |
db2a4165 FM |
561 | |
562 | if (machine->ops && machine->ops->shutdown) | |
563 | machine->ops->shutdown(substream); | |
564 | ||
565 | if (platform->pcm_ops->close) | |
566 | platform->pcm_ops->close(substream); | |
cb666e5b | 567 | cpu_dai->runtime = NULL; |
db2a4165 FM |
568 | |
569 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
570 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 571 | codec_dai->pop_wait = 1; |
6308419a | 572 | schedule_delayed_work(&card->delayed_work, |
96dd3622 | 573 | msecs_to_jiffies(card->pmdown_time)); |
db2a4165 FM |
574 | } else { |
575 | /* capture streams can be powered down now */ | |
cb666e5b | 576 | snd_soc_dapm_stream_event(codec, |
0b4d221b LG |
577 | codec_dai->capture.stream_name, |
578 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 FM |
579 | } |
580 | ||
581 | mutex_unlock(&pcm_mutex); | |
582 | return 0; | |
583 | } | |
584 | ||
585 | /* | |
586 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
587 | * rate, etc. This function is non atomic and can be called multiple times, | |
588 | * it can refer to the runtime info. | |
589 | */ | |
590 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
591 | { | |
592 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
593 | struct snd_soc_device *socdev = rtd->socdev; | |
6308419a | 594 | struct snd_soc_card *card = socdev->card; |
cb666e5b | 595 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 596 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
597 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
598 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 599 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
600 | int ret = 0; |
601 | ||
602 | mutex_lock(&pcm_mutex); | |
cb666e5b LG |
603 | |
604 | if (machine->ops && machine->ops->prepare) { | |
605 | ret = machine->ops->prepare(substream); | |
606 | if (ret < 0) { | |
607 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
608 | goto out; | |
609 | } | |
610 | } | |
611 | ||
db2a4165 FM |
612 | if (platform->pcm_ops->prepare) { |
613 | ret = platform->pcm_ops->prepare(substream); | |
a71a468a LG |
614 | if (ret < 0) { |
615 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 616 | goto out; |
a71a468a | 617 | } |
db2a4165 FM |
618 | } |
619 | ||
6335d055 EM |
620 | if (codec_dai->ops->prepare) { |
621 | ret = codec_dai->ops->prepare(substream, codec_dai); | |
a71a468a LG |
622 | if (ret < 0) { |
623 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 624 | goto out; |
a71a468a | 625 | } |
db2a4165 FM |
626 | } |
627 | ||
6335d055 EM |
628 | if (cpu_dai->ops->prepare) { |
629 | ret = cpu_dai->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
630 | if (ret < 0) { |
631 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
632 | goto out; | |
633 | } | |
634 | } | |
db2a4165 | 635 | |
d45f6219 MB |
636 | /* cancel any delayed stream shutdown that is pending */ |
637 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
638 | codec_dai->pop_wait) { | |
639 | codec_dai->pop_wait = 0; | |
6308419a | 640 | cancel_delayed_work(&card->delayed_work); |
d45f6219 | 641 | } |
db2a4165 | 642 | |
452c5eaa MB |
643 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
644 | snd_soc_dapm_stream_event(codec, | |
645 | codec_dai->playback.stream_name, | |
646 | SND_SOC_DAPM_STREAM_START); | |
647 | else | |
648 | snd_soc_dapm_stream_event(codec, | |
649 | codec_dai->capture.stream_name, | |
650 | SND_SOC_DAPM_STREAM_START); | |
8c6529db | 651 | |
452c5eaa | 652 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
653 | |
654 | out: | |
655 | mutex_unlock(&pcm_mutex); | |
656 | return ret; | |
657 | } | |
658 | ||
659 | /* | |
660 | * Called by ALSA when the hardware params are set by application. This | |
661 | * function can also be called multiple times and can allocate buffers | |
662 | * (using snd_pcm_lib_* ). It's non-atomic. | |
663 | */ | |
664 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
665 | struct snd_pcm_hw_params *params) | |
666 | { | |
667 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
668 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 669 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
670 | struct snd_soc_card *card = socdev->card; |
671 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
672 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
673 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
674 | int ret = 0; |
675 | ||
676 | mutex_lock(&pcm_mutex); | |
677 | ||
cb666e5b LG |
678 | if (machine->ops && machine->ops->hw_params) { |
679 | ret = machine->ops->hw_params(substream, params); | |
680 | if (ret < 0) { | |
681 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 682 | goto out; |
cb666e5b | 683 | } |
db2a4165 FM |
684 | } |
685 | ||
6335d055 EM |
686 | if (codec_dai->ops->hw_params) { |
687 | ret = codec_dai->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
688 | if (ret < 0) { |
689 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
690 | codec_dai->name); |
691 | goto codec_err; | |
db2a4165 FM |
692 | } |
693 | } | |
694 | ||
6335d055 EM |
695 | if (cpu_dai->ops->hw_params) { |
696 | ret = cpu_dai->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 697 | if (ret < 0) { |
3ff3f64b | 698 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 699 | cpu_dai->name); |
db2a4165 FM |
700 | goto interface_err; |
701 | } | |
702 | } | |
703 | ||
704 | if (platform->pcm_ops->hw_params) { | |
705 | ret = platform->pcm_ops->hw_params(substream, params); | |
706 | if (ret < 0) { | |
3ff3f64b | 707 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
708 | platform->name); |
709 | goto platform_err; | |
710 | } | |
711 | } | |
712 | ||
06f409d7 MB |
713 | machine->rate = params_rate(params); |
714 | ||
db2a4165 FM |
715 | out: |
716 | mutex_unlock(&pcm_mutex); | |
717 | return ret; | |
718 | ||
db2a4165 | 719 | platform_err: |
6335d055 EM |
720 | if (cpu_dai->ops->hw_free) |
721 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
722 | |
723 | interface_err: | |
6335d055 EM |
724 | if (codec_dai->ops->hw_free) |
725 | codec_dai->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
726 | |
727 | codec_err: | |
3ff3f64b | 728 | if (machine->ops && machine->ops->hw_free) |
cb666e5b | 729 | machine->ops->hw_free(substream); |
db2a4165 FM |
730 | |
731 | mutex_unlock(&pcm_mutex); | |
732 | return ret; | |
733 | } | |
734 | ||
735 | /* | |
736 | * Free's resources allocated by hw_params, can be called multiple times | |
737 | */ | |
738 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
739 | { | |
740 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
741 | struct snd_soc_device *socdev = rtd->socdev; | |
cb666e5b | 742 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 MB |
743 | struct snd_soc_card *card = socdev->card; |
744 | struct snd_soc_platform *platform = card->platform; | |
3c4b266f LG |
745 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
746 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
6627a653 | 747 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
748 | |
749 | mutex_lock(&pcm_mutex); | |
750 | ||
751 | /* apply codec digital mute */ | |
8c6529db LG |
752 | if (!codec->active) |
753 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
754 | |
755 | /* free any machine hw params */ | |
756 | if (machine->ops && machine->ops->hw_free) | |
757 | machine->ops->hw_free(substream); | |
758 | ||
759 | /* free any DMA resources */ | |
760 | if (platform->pcm_ops->hw_free) | |
761 | platform->pcm_ops->hw_free(substream); | |
762 | ||
763 | /* now free hw params for the DAI's */ | |
6335d055 EM |
764 | if (codec_dai->ops->hw_free) |
765 | codec_dai->ops->hw_free(substream, codec_dai); | |
db2a4165 | 766 | |
6335d055 EM |
767 | if (cpu_dai->ops->hw_free) |
768 | cpu_dai->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
769 | |
770 | mutex_unlock(&pcm_mutex); | |
771 | return 0; | |
772 | } | |
773 | ||
774 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
775 | { | |
776 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
777 | struct snd_soc_device *socdev = rtd->socdev; | |
87689d56 | 778 | struct snd_soc_card *card= socdev->card; |
cb666e5b | 779 | struct snd_soc_dai_link *machine = rtd->dai; |
87689d56 | 780 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
781 | struct snd_soc_dai *cpu_dai = machine->cpu_dai; |
782 | struct snd_soc_dai *codec_dai = machine->codec_dai; | |
db2a4165 FM |
783 | int ret; |
784 | ||
6335d055 EM |
785 | if (codec_dai->ops->trigger) { |
786 | ret = codec_dai->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
787 | if (ret < 0) |
788 | return ret; | |
789 | } | |
790 | ||
791 | if (platform->pcm_ops->trigger) { | |
792 | ret = platform->pcm_ops->trigger(substream, cmd); | |
793 | if (ret < 0) | |
794 | return ret; | |
795 | } | |
796 | ||
6335d055 EM |
797 | if (cpu_dai->ops->trigger) { |
798 | ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
799 | if (ret < 0) |
800 | return ret; | |
801 | } | |
802 | return 0; | |
803 | } | |
804 | ||
805 | /* ASoC PCM operations */ | |
806 | static struct snd_pcm_ops soc_pcm_ops = { | |
807 | .open = soc_pcm_open, | |
808 | .close = soc_codec_close, | |
809 | .hw_params = soc_pcm_hw_params, | |
810 | .hw_free = soc_pcm_hw_free, | |
811 | .prepare = soc_pcm_prepare, | |
812 | .trigger = soc_pcm_trigger, | |
813 | }; | |
814 | ||
815 | #ifdef CONFIG_PM | |
816 | /* powers down audio subsystem for suspend */ | |
416356fc | 817 | static int soc_suspend(struct device *dev) |
db2a4165 | 818 | { |
416356fc | 819 | struct platform_device *pdev = to_platform_device(dev); |
3ff3f64b | 820 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
87506549 | 821 | struct snd_soc_card *card = socdev->card; |
87689d56 | 822 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 823 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 824 | struct snd_soc_codec *codec = card->codec; |
db2a4165 FM |
825 | int i; |
826 | ||
e3509ff0 DM |
827 | /* If the initialization of this soc device failed, there is no codec |
828 | * associated with it. Just bail out in this case. | |
829 | */ | |
830 | if (!codec) | |
831 | return 0; | |
832 | ||
6ed25978 AG |
833 | /* Due to the resume being scheduled into a workqueue we could |
834 | * suspend before that's finished - wait for it to complete. | |
835 | */ | |
836 | snd_power_lock(codec->card); | |
837 | snd_power_wait(codec->card, SNDRV_CTL_POWER_D0); | |
838 | snd_power_unlock(codec->card); | |
839 | ||
840 | /* we're going to block userspace touching us until resume completes */ | |
841 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot); | |
842 | ||
db2a4165 | 843 | /* mute any active DAC's */ |
dee89c4d MB |
844 | for (i = 0; i < card->num_links; i++) { |
845 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
846 | if (dai->ops->digital_mute && dai->playback.active) |
847 | dai->ops->digital_mute(dai, 1); | |
db2a4165 FM |
848 | } |
849 | ||
4ccab3e7 | 850 | /* suspend all pcms */ |
87506549 MB |
851 | for (i = 0; i < card->num_links; i++) |
852 | snd_pcm_suspend_all(card->dai_link[i].pcm); | |
4ccab3e7 | 853 | |
87506549 | 854 | if (card->suspend_pre) |
416356fc | 855 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 856 | |
87506549 MB |
857 | for (i = 0; i < card->num_links; i++) { |
858 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 859 | if (cpu_dai->suspend && !cpu_dai->ac97_control) |
dc7d7b83 | 860 | cpu_dai->suspend(cpu_dai); |
db2a4165 | 861 | if (platform->suspend) |
07c84d04 | 862 | platform->suspend(cpu_dai); |
db2a4165 FM |
863 | } |
864 | ||
865 | /* close any waiting streams and save state */ | |
6308419a | 866 | run_delayed_work(&card->delayed_work); |
0be9898a | 867 | codec->suspend_bias_level = codec->bias_level; |
db2a4165 | 868 | |
3ff3f64b | 869 | for (i = 0; i < codec->num_dai; i++) { |
db2a4165 FM |
870 | char *stream = codec->dai[i].playback.stream_name; |
871 | if (stream != NULL) | |
872 | snd_soc_dapm_stream_event(codec, stream, | |
873 | SND_SOC_DAPM_STREAM_SUSPEND); | |
874 | stream = codec->dai[i].capture.stream_name; | |
875 | if (stream != NULL) | |
876 | snd_soc_dapm_stream_event(codec, stream, | |
877 | SND_SOC_DAPM_STREAM_SUSPEND); | |
878 | } | |
879 | ||
880 | if (codec_dev->suspend) | |
416356fc | 881 | codec_dev->suspend(pdev, PMSG_SUSPEND); |
db2a4165 | 882 | |
87506549 MB |
883 | for (i = 0; i < card->num_links; i++) { |
884 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 885 | if (cpu_dai->suspend && cpu_dai->ac97_control) |
dc7d7b83 | 886 | cpu_dai->suspend(cpu_dai); |
db2a4165 FM |
887 | } |
888 | ||
87506549 | 889 | if (card->suspend_post) |
416356fc | 890 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
891 | |
892 | return 0; | |
893 | } | |
894 | ||
6ed25978 AG |
895 | /* deferred resume work, so resume can complete before we finished |
896 | * setting our codec back up, which can be very slow on I2C | |
897 | */ | |
898 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 899 | { |
6308419a MB |
900 | struct snd_soc_card *card = container_of(work, |
901 | struct snd_soc_card, | |
902 | deferred_resume_work); | |
903 | struct snd_soc_device *socdev = card->socdev; | |
87689d56 | 904 | struct snd_soc_platform *platform = card->platform; |
3ff3f64b | 905 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
6627a653 | 906 | struct snd_soc_codec *codec = card->codec; |
6ed25978 | 907 | struct platform_device *pdev = to_platform_device(socdev->dev); |
db2a4165 FM |
908 | int i; |
909 | ||
6ed25978 AG |
910 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
911 | * so userspace apps are blocked from touching us | |
912 | */ | |
913 | ||
fde22f27 | 914 | dev_dbg(socdev->dev, "starting resume work\n"); |
6ed25978 | 915 | |
87506549 MB |
916 | if (card->resume_pre) |
917 | card->resume_pre(pdev); | |
db2a4165 | 918 | |
87506549 MB |
919 | for (i = 0; i < card->num_links; i++) { |
920 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 921 | if (cpu_dai->resume && cpu_dai->ac97_control) |
dc7d7b83 | 922 | cpu_dai->resume(cpu_dai); |
db2a4165 FM |
923 | } |
924 | ||
925 | if (codec_dev->resume) | |
926 | codec_dev->resume(pdev); | |
927 | ||
3ff3f64b MB |
928 | for (i = 0; i < codec->num_dai; i++) { |
929 | char *stream = codec->dai[i].playback.stream_name; | |
db2a4165 FM |
930 | if (stream != NULL) |
931 | snd_soc_dapm_stream_event(codec, stream, | |
932 | SND_SOC_DAPM_STREAM_RESUME); | |
933 | stream = codec->dai[i].capture.stream_name; | |
934 | if (stream != NULL) | |
935 | snd_soc_dapm_stream_event(codec, stream, | |
936 | SND_SOC_DAPM_STREAM_RESUME); | |
937 | } | |
938 | ||
3ff3f64b | 939 | /* unmute any active DACs */ |
dee89c4d MB |
940 | for (i = 0; i < card->num_links; i++) { |
941 | struct snd_soc_dai *dai = card->dai_link[i].codec_dai; | |
6335d055 EM |
942 | if (dai->ops->digital_mute && dai->playback.active) |
943 | dai->ops->digital_mute(dai, 0); | |
db2a4165 FM |
944 | } |
945 | ||
87506549 MB |
946 | for (i = 0; i < card->num_links; i++) { |
947 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
3ba9e10a | 948 | if (cpu_dai->resume && !cpu_dai->ac97_control) |
dc7d7b83 | 949 | cpu_dai->resume(cpu_dai); |
db2a4165 | 950 | if (platform->resume) |
07c84d04 | 951 | platform->resume(cpu_dai); |
db2a4165 FM |
952 | } |
953 | ||
87506549 MB |
954 | if (card->resume_post) |
955 | card->resume_post(pdev); | |
db2a4165 | 956 | |
fde22f27 | 957 | dev_dbg(socdev->dev, "resume work completed\n"); |
6ed25978 AG |
958 | |
959 | /* userspace can access us now we are back as we were before */ | |
960 | snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0); | |
961 | } | |
962 | ||
963 | /* powers up audio subsystem after a suspend */ | |
416356fc | 964 | static int soc_resume(struct device *dev) |
6ed25978 | 965 | { |
416356fc | 966 | struct platform_device *pdev = to_platform_device(dev); |
6ed25978 | 967 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
6308419a | 968 | struct snd_soc_card *card = socdev->card; |
64ab9baa | 969 | struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai; |
6ed25978 | 970 | |
b9dd94a8 PU |
971 | /* If the initialization of this soc device failed, there is no codec |
972 | * associated with it. Just bail out in this case. | |
973 | */ | |
974 | if (!card->codec) | |
975 | return 0; | |
976 | ||
64ab9baa MB |
977 | /* AC97 devices might have other drivers hanging off them so |
978 | * need to resume immediately. Other drivers don't have that | |
979 | * problem and may take a substantial amount of time to resume | |
980 | * due to I/O costs and anti-pop so handle them out of line. | |
981 | */ | |
982 | if (cpu_dai->ac97_control) { | |
983 | dev_dbg(socdev->dev, "Resuming AC97 immediately\n"); | |
984 | soc_resume_deferred(&card->deferred_resume_work); | |
985 | } else { | |
986 | dev_dbg(socdev->dev, "Scheduling resume work\n"); | |
987 | if (!schedule_work(&card->deferred_resume_work)) | |
988 | dev_err(socdev->dev, "resume work item may be lost\n"); | |
989 | } | |
6ed25978 | 990 | |
db2a4165 FM |
991 | return 0; |
992 | } | |
db2a4165 FM |
993 | #else |
994 | #define soc_suspend NULL | |
995 | #define soc_resume NULL | |
996 | #endif | |
997 | ||
02a06d30 BS |
998 | static struct snd_soc_dai_ops null_dai_ops = { |
999 | }; | |
1000 | ||
435c5e25 | 1001 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
db2a4165 | 1002 | { |
435c5e25 MB |
1003 | struct platform_device *pdev = container_of(card->dev, |
1004 | struct platform_device, | |
1005 | dev); | |
1006 | struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev; | |
fe3e78e0 | 1007 | struct snd_soc_codec *codec; |
435c5e25 MB |
1008 | struct snd_soc_platform *platform; |
1009 | struct snd_soc_dai *dai; | |
6b05eda6 | 1010 | int i, found, ret, ac97; |
435c5e25 MB |
1011 | |
1012 | if (card->instantiated) | |
1013 | return; | |
1014 | ||
1015 | found = 0; | |
1016 | list_for_each_entry(platform, &platform_list, list) | |
1017 | if (card->platform == platform) { | |
1018 | found = 1; | |
1019 | break; | |
1020 | } | |
1021 | if (!found) { | |
1022 | dev_dbg(card->dev, "Platform %s not registered\n", | |
1023 | card->platform->name); | |
1024 | return; | |
1025 | } | |
6308419a | 1026 | |
6b05eda6 | 1027 | ac97 = 0; |
435c5e25 MB |
1028 | for (i = 0; i < card->num_links; i++) { |
1029 | found = 0; | |
1030 | list_for_each_entry(dai, &dai_list, list) | |
1031 | if (card->dai_link[i].cpu_dai == dai) { | |
1032 | found = 1; | |
1033 | break; | |
1034 | } | |
1035 | if (!found) { | |
1036 | dev_dbg(card->dev, "DAI %s not registered\n", | |
1037 | card->dai_link[i].cpu_dai->name); | |
1038 | return; | |
1039 | } | |
6b05eda6 MB |
1040 | |
1041 | if (card->dai_link[i].cpu_dai->ac97_control) | |
1042 | ac97 = 1; | |
c5af3a2e MB |
1043 | } |
1044 | ||
02a06d30 BS |
1045 | for (i = 0; i < card->num_links; i++) { |
1046 | if (!card->dai_link[i].codec_dai->ops) | |
1047 | card->dai_link[i].codec_dai->ops = &null_dai_ops; | |
1048 | } | |
1049 | ||
6b05eda6 MB |
1050 | /* If we have AC97 in the system then don't wait for the |
1051 | * codec. This will need revisiting if we have to handle | |
1052 | * systems with mixed AC97 and non-AC97 parts. Only check for | |
1053 | * DAIs currently; we can't do this per link since some AC97 | |
1054 | * codecs have non-AC97 DAIs. | |
1055 | */ | |
1056 | if (!ac97) | |
1057 | for (i = 0; i < card->num_links; i++) { | |
1058 | found = 0; | |
1059 | list_for_each_entry(dai, &dai_list, list) | |
1060 | if (card->dai_link[i].codec_dai == dai) { | |
1061 | found = 1; | |
1062 | break; | |
1063 | } | |
1064 | if (!found) { | |
1065 | dev_dbg(card->dev, "DAI %s not registered\n", | |
1066 | card->dai_link[i].codec_dai->name); | |
1067 | return; | |
1068 | } | |
1069 | } | |
1070 | ||
435c5e25 MB |
1071 | /* Note that we do not current check for codec components */ |
1072 | ||
1073 | dev_dbg(card->dev, "All components present, instantiating\n"); | |
1074 | ||
1075 | /* Found everything, bring it up */ | |
96dd3622 MB |
1076 | card->pmdown_time = pmdown_time; |
1077 | ||
87506549 MB |
1078 | if (card->probe) { |
1079 | ret = card->probe(pdev); | |
3ff3f64b | 1080 | if (ret < 0) |
435c5e25 | 1081 | return; |
db2a4165 FM |
1082 | } |
1083 | ||
87506549 MB |
1084 | for (i = 0; i < card->num_links; i++) { |
1085 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 1086 | if (cpu_dai->probe) { |
bdb92876 | 1087 | ret = cpu_dai->probe(pdev, cpu_dai); |
3ff3f64b | 1088 | if (ret < 0) |
db2a4165 FM |
1089 | goto cpu_dai_err; |
1090 | } | |
1091 | } | |
1092 | ||
1093 | if (codec_dev->probe) { | |
1094 | ret = codec_dev->probe(pdev); | |
3ff3f64b | 1095 | if (ret < 0) |
db2a4165 FM |
1096 | goto cpu_dai_err; |
1097 | } | |
fe3e78e0 | 1098 | codec = card->codec; |
db2a4165 FM |
1099 | |
1100 | if (platform->probe) { | |
1101 | ret = platform->probe(pdev); | |
3ff3f64b | 1102 | if (ret < 0) |
db2a4165 FM |
1103 | goto platform_err; |
1104 | } | |
1105 | ||
1106 | /* DAPM stream work */ | |
6308419a | 1107 | INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work); |
1301a964 | 1108 | #ifdef CONFIG_PM |
6ed25978 | 1109 | /* deferred resume work */ |
6308419a | 1110 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); |
1301a964 | 1111 | #endif |
6ed25978 | 1112 | |
fe3e78e0 MB |
1113 | for (i = 0; i < card->num_links; i++) { |
1114 | if (card->dai_link[i].init) { | |
1115 | ret = card->dai_link[i].init(codec); | |
1116 | if (ret < 0) { | |
1117 | printk(KERN_ERR "asoc: failed to init %s\n", | |
1118 | card->dai_link[i].stream_name); | |
1119 | continue; | |
1120 | } | |
1121 | } | |
f7732053 | 1122 | if (card->dai_link[i].codec_dai->ac97_control) |
fe3e78e0 | 1123 | ac97 = 1; |
fe3e78e0 MB |
1124 | } |
1125 | ||
1126 | snprintf(codec->card->shortname, sizeof(codec->card->shortname), | |
1127 | "%s", card->name); | |
1128 | snprintf(codec->card->longname, sizeof(codec->card->longname), | |
1129 | "%s (%s)", card->name, codec->name); | |
1130 | ||
1131 | /* Make sure all DAPM widgets are instantiated */ | |
1132 | snd_soc_dapm_new_widgets(codec); | |
1133 | ||
1134 | ret = snd_card_register(codec->card); | |
1135 | if (ret < 0) { | |
1136 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", | |
1137 | codec->name); | |
1138 | goto card_err; | |
1139 | } | |
1140 | ||
1141 | mutex_lock(&codec->mutex); | |
1142 | #ifdef CONFIG_SND_SOC_AC97_BUS | |
1143 | /* Only instantiate AC97 if not already done by the adaptor | |
1144 | * for the generic AC97 subsystem. | |
1145 | */ | |
1146 | if (ac97 && strcmp(codec->name, "AC97") != 0) { | |
1147 | ret = soc_ac97_dev_register(codec); | |
1148 | if (ret < 0) { | |
1149 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
1150 | snd_card_free(codec->card); | |
1151 | mutex_unlock(&codec->mutex); | |
1152 | goto card_err; | |
1153 | } | |
1154 | } | |
1155 | #endif | |
1156 | ||
1157 | ret = snd_soc_dapm_sys_add(card->socdev->dev); | |
1158 | if (ret < 0) | |
1159 | printk(KERN_WARNING "asoc: failed to add dapm sysfs entries\n"); | |
1160 | ||
dbe21408 MB |
1161 | ret = device_create_file(card->socdev->dev, &dev_attr_pmdown_time); |
1162 | if (ret < 0) | |
1163 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1164 | ||
fe3e78e0 MB |
1165 | ret = device_create_file(card->socdev->dev, &dev_attr_codec_reg); |
1166 | if (ret < 0) | |
1167 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1168 | ||
1169 | soc_init_codec_debugfs(codec); | |
1170 | mutex_unlock(&codec->mutex); | |
1171 | ||
435c5e25 MB |
1172 | card->instantiated = 1; |
1173 | ||
1174 | return; | |
db2a4165 | 1175 | |
fe3e78e0 MB |
1176 | card_err: |
1177 | if (platform->remove) | |
1178 | platform->remove(pdev); | |
1179 | ||
db2a4165 FM |
1180 | platform_err: |
1181 | if (codec_dev->remove) | |
1182 | codec_dev->remove(pdev); | |
1183 | ||
1184 | cpu_dai_err: | |
18b9b3d9 | 1185 | for (i--; i >= 0; i--) { |
87506549 | 1186 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; |
db2a4165 | 1187 | if (cpu_dai->remove) |
bdb92876 | 1188 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
1189 | } |
1190 | ||
87506549 MB |
1191 | if (card->remove) |
1192 | card->remove(pdev); | |
435c5e25 | 1193 | } |
db2a4165 | 1194 | |
435c5e25 MB |
1195 | /* |
1196 | * Attempt to initialise any uninitalised cards. Must be called with | |
1197 | * client_mutex. | |
1198 | */ | |
1199 | static void snd_soc_instantiate_cards(void) | |
1200 | { | |
1201 | struct snd_soc_card *card; | |
1202 | list_for_each_entry(card, &card_list, list) | |
1203 | snd_soc_instantiate_card(card); | |
1204 | } | |
1205 | ||
1206 | /* probes a new socdev */ | |
1207 | static int soc_probe(struct platform_device *pdev) | |
1208 | { | |
1209 | int ret = 0; | |
1210 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
1211 | struct snd_soc_card *card = socdev->card; | |
1212 | ||
1213 | /* Bodge while we push things out of socdev */ | |
1214 | card->socdev = socdev; | |
1215 | ||
1216 | /* Bodge while we unpick instantiation */ | |
1217 | card->dev = &pdev->dev; | |
1218 | ret = snd_soc_register_card(card); | |
1219 | if (ret != 0) { | |
1220 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1221 | return ret; | |
1222 | } | |
1223 | ||
1224 | return 0; | |
db2a4165 FM |
1225 | } |
1226 | ||
1227 | /* removes a socdev */ | |
1228 | static int soc_remove(struct platform_device *pdev) | |
1229 | { | |
1230 | int i; | |
1231 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
87506549 | 1232 | struct snd_soc_card *card = socdev->card; |
87689d56 | 1233 | struct snd_soc_platform *platform = card->platform; |
db2a4165 FM |
1234 | struct snd_soc_codec_device *codec_dev = socdev->codec_dev; |
1235 | ||
914dc182 MR |
1236 | if (!card->instantiated) |
1237 | return 0; | |
1238 | ||
6308419a | 1239 | run_delayed_work(&card->delayed_work); |
965ac42c | 1240 | |
db2a4165 FM |
1241 | if (platform->remove) |
1242 | platform->remove(pdev); | |
1243 | ||
1244 | if (codec_dev->remove) | |
1245 | codec_dev->remove(pdev); | |
1246 | ||
87506549 MB |
1247 | for (i = 0; i < card->num_links; i++) { |
1248 | struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai; | |
db2a4165 | 1249 | if (cpu_dai->remove) |
bdb92876 | 1250 | cpu_dai->remove(pdev, cpu_dai); |
db2a4165 FM |
1251 | } |
1252 | ||
87506549 MB |
1253 | if (card->remove) |
1254 | card->remove(pdev); | |
db2a4165 | 1255 | |
c5af3a2e MB |
1256 | snd_soc_unregister_card(card); |
1257 | ||
db2a4165 FM |
1258 | return 0; |
1259 | } | |
1260 | ||
416356fc | 1261 | static int soc_poweroff(struct device *dev) |
51737470 | 1262 | { |
416356fc | 1263 | struct platform_device *pdev = to_platform_device(dev); |
51737470 MB |
1264 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
1265 | struct snd_soc_card *card = socdev->card; | |
1266 | ||
1267 | if (!card->instantiated) | |
416356fc | 1268 | return 0; |
51737470 MB |
1269 | |
1270 | /* Flush out pmdown_time work - we actually do want to run it | |
1271 | * now, we're shutting down so no imminent restart. */ | |
1272 | run_delayed_work(&card->delayed_work); | |
1273 | ||
1274 | snd_soc_dapm_shutdown(socdev); | |
416356fc MB |
1275 | |
1276 | return 0; | |
51737470 MB |
1277 | } |
1278 | ||
47145210 | 1279 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1280 | .suspend = soc_suspend, |
1281 | .resume = soc_resume, | |
1282 | .poweroff = soc_poweroff, | |
1283 | }; | |
1284 | ||
db2a4165 FM |
1285 | /* ASoC platform driver */ |
1286 | static struct platform_driver soc_driver = { | |
1287 | .driver = { | |
1288 | .name = "soc-audio", | |
8b45a209 | 1289 | .owner = THIS_MODULE, |
416356fc | 1290 | .pm = &soc_pm_ops, |
db2a4165 FM |
1291 | }, |
1292 | .probe = soc_probe, | |
1293 | .remove = soc_remove, | |
db2a4165 FM |
1294 | }; |
1295 | ||
1296 | /* create a new pcm */ | |
1297 | static int soc_new_pcm(struct snd_soc_device *socdev, | |
1298 | struct snd_soc_dai_link *dai_link, int num) | |
1299 | { | |
87689d56 | 1300 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1301 | struct snd_soc_codec *codec = card->codec; |
87689d56 | 1302 | struct snd_soc_platform *platform = card->platform; |
3c4b266f LG |
1303 | struct snd_soc_dai *codec_dai = dai_link->codec_dai; |
1304 | struct snd_soc_dai *cpu_dai = dai_link->cpu_dai; | |
db2a4165 FM |
1305 | struct snd_soc_pcm_runtime *rtd; |
1306 | struct snd_pcm *pcm; | |
1307 | char new_name[64]; | |
1308 | int ret = 0, playback = 0, capture = 0; | |
1309 | ||
1310 | rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL); | |
1311 | if (rtd == NULL) | |
1312 | return -ENOMEM; | |
cb666e5b LG |
1313 | |
1314 | rtd->dai = dai_link; | |
db2a4165 | 1315 | rtd->socdev = socdev; |
6627a653 | 1316 | codec_dai->codec = card->codec; |
db2a4165 FM |
1317 | |
1318 | /* check client and interface hw capabilities */ | |
40ca1142 MB |
1319 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
1320 | dai_link->stream_name, codec_dai->name, num); | |
db2a4165 FM |
1321 | |
1322 | if (codec_dai->playback.channels_min) | |
1323 | playback = 1; | |
1324 | if (codec_dai->capture.channels_min) | |
1325 | capture = 1; | |
1326 | ||
1327 | ret = snd_pcm_new(codec->card, new_name, codec->pcm_devs++, playback, | |
1328 | capture, &pcm); | |
1329 | if (ret < 0) { | |
3ff3f64b MB |
1330 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", |
1331 | codec->name); | |
db2a4165 FM |
1332 | kfree(rtd); |
1333 | return ret; | |
1334 | } | |
1335 | ||
4ccab3e7 | 1336 | dai_link->pcm = pcm; |
db2a4165 | 1337 | pcm->private_data = rtd; |
87689d56 MB |
1338 | soc_pcm_ops.mmap = platform->pcm_ops->mmap; |
1339 | soc_pcm_ops.pointer = platform->pcm_ops->pointer; | |
1340 | soc_pcm_ops.ioctl = platform->pcm_ops->ioctl; | |
1341 | soc_pcm_ops.copy = platform->pcm_ops->copy; | |
1342 | soc_pcm_ops.silence = platform->pcm_ops->silence; | |
1343 | soc_pcm_ops.ack = platform->pcm_ops->ack; | |
1344 | soc_pcm_ops.page = platform->pcm_ops->page; | |
db2a4165 FM |
1345 | |
1346 | if (playback) | |
1347 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1348 | ||
1349 | if (capture) | |
1350 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1351 | ||
87689d56 | 1352 | ret = platform->pcm_new(codec->card, codec_dai, pcm); |
db2a4165 FM |
1353 | if (ret < 0) { |
1354 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
1355 | kfree(rtd); | |
1356 | return ret; | |
1357 | } | |
1358 | ||
87689d56 | 1359 | pcm->private_free = platform->pcm_free; |
db2a4165 FM |
1360 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1361 | cpu_dai->name); | |
1362 | return ret; | |
1363 | } | |
1364 | ||
096e49d5 MB |
1365 | /** |
1366 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1367 | * | |
1368 | * @codec: CODEC to query. | |
1369 | * @reg: Register to query. | |
1370 | * | |
1371 | * Boolean function indiciating if a CODEC register is volatile. | |
1372 | */ | |
1373 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1374 | { | |
1375 | if (codec->volatile_register) | |
1376 | return codec->volatile_register(reg); | |
1377 | else | |
1378 | return 0; | |
1379 | } | |
1380 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1381 | ||
db2a4165 FM |
1382 | /** |
1383 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1384 | * @codec: audio codec | |
1385 | * @ops: AC97 bus operations | |
1386 | * @num: AC97 codec number | |
1387 | * | |
1388 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1389 | */ | |
1390 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1391 | struct snd_ac97_bus_ops *ops, int num) | |
1392 | { | |
1393 | mutex_lock(&codec->mutex); | |
1394 | ||
1395 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1396 | if (codec->ac97 == NULL) { | |
1397 | mutex_unlock(&codec->mutex); | |
1398 | return -ENOMEM; | |
1399 | } | |
1400 | ||
1401 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1402 | if (codec->ac97->bus == NULL) { | |
1403 | kfree(codec->ac97); | |
1404 | codec->ac97 = NULL; | |
1405 | mutex_unlock(&codec->mutex); | |
1406 | return -ENOMEM; | |
1407 | } | |
1408 | ||
1409 | codec->ac97->bus->ops = ops; | |
1410 | codec->ac97->num = num; | |
2718625f | 1411 | codec->dev = &codec->ac97->dev; |
db2a4165 FM |
1412 | mutex_unlock(&codec->mutex); |
1413 | return 0; | |
1414 | } | |
1415 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1416 | ||
1417 | /** | |
1418 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1419 | * @codec: audio codec | |
1420 | * | |
1421 | * Frees AC97 codec device resources. | |
1422 | */ | |
1423 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1424 | { | |
1425 | mutex_lock(&codec->mutex); | |
1426 | kfree(codec->ac97->bus); | |
1427 | kfree(codec->ac97); | |
1428 | codec->ac97 = NULL; | |
1429 | mutex_unlock(&codec->mutex); | |
1430 | } | |
1431 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1432 | ||
1433 | /** | |
1434 | * snd_soc_update_bits - update codec register bits | |
1435 | * @codec: audio codec | |
1436 | * @reg: codec register | |
1437 | * @mask: register mask | |
1438 | * @value: new value | |
1439 | * | |
1440 | * Writes new register value. | |
1441 | * | |
1442 | * Returns 1 for change else 0. | |
1443 | */ | |
1444 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1445 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1446 | { |
1447 | int change; | |
46f5822f | 1448 | unsigned int old, new; |
db2a4165 | 1449 | |
db2a4165 FM |
1450 | old = snd_soc_read(codec, reg); |
1451 | new = (old & ~mask) | value; | |
1452 | change = old != new; | |
1453 | if (change) | |
1454 | snd_soc_write(codec, reg, new); | |
1455 | ||
db2a4165 FM |
1456 | return change; |
1457 | } | |
1458 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1459 | ||
6c508c62 EN |
1460 | /** |
1461 | * snd_soc_update_bits_locked - update codec register bits | |
1462 | * @codec: audio codec | |
1463 | * @reg: codec register | |
1464 | * @mask: register mask | |
1465 | * @value: new value | |
1466 | * | |
1467 | * Writes new register value, and takes the codec mutex. | |
1468 | * | |
1469 | * Returns 1 for change else 0. | |
1470 | */ | |
dd1b3d53 MB |
1471 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1472 | unsigned short reg, unsigned int mask, | |
1473 | unsigned int value) | |
6c508c62 EN |
1474 | { |
1475 | int change; | |
1476 | ||
1477 | mutex_lock(&codec->mutex); | |
1478 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1479 | mutex_unlock(&codec->mutex); | |
1480 | ||
1481 | return change; | |
1482 | } | |
dd1b3d53 | 1483 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1484 | |
db2a4165 FM |
1485 | /** |
1486 | * snd_soc_test_bits - test register for change | |
1487 | * @codec: audio codec | |
1488 | * @reg: codec register | |
1489 | * @mask: register mask | |
1490 | * @value: new value | |
1491 | * | |
1492 | * Tests a register with a new value and checks if the new value is | |
1493 | * different from the old value. | |
1494 | * | |
1495 | * Returns 1 for change else 0. | |
1496 | */ | |
1497 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1498 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1499 | { |
1500 | int change; | |
46f5822f | 1501 | unsigned int old, new; |
db2a4165 | 1502 | |
db2a4165 FM |
1503 | old = snd_soc_read(codec, reg); |
1504 | new = (old & ~mask) | value; | |
1505 | change = old != new; | |
db2a4165 FM |
1506 | |
1507 | return change; | |
1508 | } | |
1509 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1510 | ||
db2a4165 FM |
1511 | /** |
1512 | * snd_soc_new_pcms - create new sound card and pcms | |
1513 | * @socdev: the SoC audio device | |
ac11a2b3 MB |
1514 | * @idx: ALSA card index |
1515 | * @xid: card identification | |
db2a4165 FM |
1516 | * |
1517 | * Create a new sound card based upon the codec and interface pcms. | |
1518 | * | |
1519 | * Returns 0 for success, else error. | |
1520 | */ | |
bc7320c5 | 1521 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid) |
db2a4165 | 1522 | { |
87506549 | 1523 | struct snd_soc_card *card = socdev->card; |
6627a653 | 1524 | struct snd_soc_codec *codec = card->codec; |
bd7dd77c | 1525 | int ret, i; |
db2a4165 FM |
1526 | |
1527 | mutex_lock(&codec->mutex); | |
1528 | ||
1529 | /* register a sound card */ | |
bd7dd77c TI |
1530 | ret = snd_card_create(idx, xid, codec->owner, 0, &codec->card); |
1531 | if (ret < 0) { | |
db2a4165 FM |
1532 | printk(KERN_ERR "asoc: can't create sound card for codec %s\n", |
1533 | codec->name); | |
1534 | mutex_unlock(&codec->mutex); | |
bd7dd77c | 1535 | return ret; |
db2a4165 FM |
1536 | } |
1537 | ||
452c5eaa | 1538 | codec->socdev = socdev; |
db2a4165 FM |
1539 | codec->card->dev = socdev->dev; |
1540 | codec->card->private_data = codec; | |
1541 | strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver)); | |
1542 | ||
1543 | /* create the pcms */ | |
87506549 MB |
1544 | for (i = 0; i < card->num_links; i++) { |
1545 | ret = soc_new_pcm(socdev, &card->dai_link[i], i); | |
db2a4165 FM |
1546 | if (ret < 0) { |
1547 | printk(KERN_ERR "asoc: can't create pcm %s\n", | |
87506549 | 1548 | card->dai_link[i].stream_name); |
db2a4165 FM |
1549 | mutex_unlock(&codec->mutex); |
1550 | return ret; | |
1551 | } | |
f7732053 BS |
1552 | if (card->dai_link[i].codec_dai->ac97_control) { |
1553 | snd_ac97_dev_add_pdata(codec->ac97, | |
1554 | card->dai_link[i].cpu_dai->ac97_pdata); | |
1555 | } | |
db2a4165 FM |
1556 | } |
1557 | ||
1558 | mutex_unlock(&codec->mutex); | |
1559 | return ret; | |
1560 | } | |
1561 | EXPORT_SYMBOL_GPL(snd_soc_new_pcms); | |
1562 | ||
db2a4165 FM |
1563 | /** |
1564 | * snd_soc_free_pcms - free sound card and pcms | |
1565 | * @socdev: the SoC audio device | |
1566 | * | |
1567 | * Frees sound card and pcms associated with the socdev. | |
1568 | * Also unregister the codec if it is an AC97 device. | |
1569 | */ | |
1570 | void snd_soc_free_pcms(struct snd_soc_device *socdev) | |
1571 | { | |
6627a653 | 1572 | struct snd_soc_codec *codec = socdev->card->codec; |
a68660e0 | 1573 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3c4b266f | 1574 | struct snd_soc_dai *codec_dai; |
a68660e0 LG |
1575 | int i; |
1576 | #endif | |
db2a4165 FM |
1577 | |
1578 | mutex_lock(&codec->mutex); | |
6627a653 | 1579 | soc_cleanup_codec_debugfs(codec); |
db2a4165 | 1580 | #ifdef CONFIG_SND_SOC_AC97_BUS |
3ff3f64b | 1581 | for (i = 0; i < codec->num_dai; i++) { |
a68660e0 | 1582 | codec_dai = &codec->dai[i]; |
d2314e0e AN |
1583 | if (codec_dai->ac97_control && codec->ac97 && |
1584 | strcmp(codec->name, "AC97") != 0) { | |
a68660e0 LG |
1585 | soc_ac97_dev_unregister(codec); |
1586 | goto free_card; | |
1587 | } | |
1588 | } | |
1589 | free_card: | |
db2a4165 FM |
1590 | #endif |
1591 | ||
1592 | if (codec->card) | |
1593 | snd_card_free(codec->card); | |
1594 | device_remove_file(socdev->dev, &dev_attr_codec_reg); | |
1595 | mutex_unlock(&codec->mutex); | |
1596 | } | |
1597 | EXPORT_SYMBOL_GPL(snd_soc_free_pcms); | |
1598 | ||
1599 | /** | |
1600 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1601 | * @substream: the pcm substream | |
1602 | * @hw: the hardware parameters | |
1603 | * | |
1604 | * Sets the substream runtime hardware parameters. | |
1605 | */ | |
1606 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1607 | const struct snd_pcm_hardware *hw) | |
1608 | { | |
1609 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1610 | runtime->hw.info = hw->info; | |
1611 | runtime->hw.formats = hw->formats; | |
1612 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1613 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1614 | runtime->hw.periods_min = hw->periods_min; | |
1615 | runtime->hw.periods_max = hw->periods_max; | |
1616 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1617 | runtime->hw.fifo_size = hw->fifo_size; | |
1618 | return 0; | |
1619 | } | |
1620 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1621 | ||
1622 | /** | |
1623 | * snd_soc_cnew - create new control | |
1624 | * @_template: control template | |
1625 | * @data: control private data | |
ac11a2b3 | 1626 | * @long_name: control long name |
db2a4165 FM |
1627 | * |
1628 | * Create a new mixer control from a template control. | |
1629 | * | |
1630 | * Returns 0 for success, else error. | |
1631 | */ | |
1632 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1633 | void *data, char *long_name) | |
1634 | { | |
1635 | struct snd_kcontrol_new template; | |
1636 | ||
1637 | memcpy(&template, _template, sizeof(template)); | |
1638 | if (long_name) | |
1639 | template.name = long_name; | |
db2a4165 FM |
1640 | template.index = 0; |
1641 | ||
1642 | return snd_ctl_new1(&template, data); | |
1643 | } | |
1644 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1645 | ||
3e8e1952 IM |
1646 | /** |
1647 | * snd_soc_add_controls - add an array of controls to a codec. | |
1648 | * Convienience function to add a list of controls. Many codecs were | |
1649 | * duplicating this code. | |
1650 | * | |
1651 | * @codec: codec to add controls to | |
1652 | * @controls: array of controls to add | |
1653 | * @num_controls: number of elements in the array | |
1654 | * | |
1655 | * Return 0 for success, else error. | |
1656 | */ | |
1657 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1658 | const struct snd_kcontrol_new *controls, int num_controls) | |
1659 | { | |
1660 | struct snd_card *card = codec->card; | |
1661 | int err, i; | |
1662 | ||
1663 | for (i = 0; i < num_controls; i++) { | |
1664 | const struct snd_kcontrol_new *control = &controls[i]; | |
1665 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
1666 | if (err < 0) { | |
1667 | dev_err(codec->dev, "%s: Failed to add %s\n", | |
1668 | codec->name, control->name); | |
1669 | return err; | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | return 0; | |
1674 | } | |
1675 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
1676 | ||
db2a4165 FM |
1677 | /** |
1678 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
1679 | * @kcontrol: mixer control | |
1680 | * @uinfo: control element information | |
1681 | * | |
1682 | * Callback to provide information about a double enumerated | |
1683 | * mixer control. | |
1684 | * | |
1685 | * Returns 0 for success. | |
1686 | */ | |
1687 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
1688 | struct snd_ctl_elem_info *uinfo) | |
1689 | { | |
1690 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1691 | ||
1692 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1693 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 1694 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1695 | |
f8ba0b7b JS |
1696 | if (uinfo->value.enumerated.item > e->max - 1) |
1697 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1698 | strcpy(uinfo->value.enumerated.name, |
1699 | e->texts[uinfo->value.enumerated.item]); | |
1700 | return 0; | |
1701 | } | |
1702 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
1703 | ||
1704 | /** | |
1705 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
1706 | * @kcontrol: mixer control | |
ac11a2b3 | 1707 | * @ucontrol: control element information |
db2a4165 FM |
1708 | * |
1709 | * Callback to get the value of a double enumerated mixer. | |
1710 | * | |
1711 | * Returns 0 for success. | |
1712 | */ | |
1713 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
1714 | struct snd_ctl_elem_value *ucontrol) | |
1715 | { | |
1716 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1717 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1718 | unsigned int val, bitmask; |
db2a4165 | 1719 | |
f8ba0b7b | 1720 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
1721 | ; |
1722 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
1723 | ucontrol->value.enumerated.item[0] |
1724 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
1725 | if (e->shift_l != e->shift_r) |
1726 | ucontrol->value.enumerated.item[1] = | |
1727 | (val >> e->shift_r) & (bitmask - 1); | |
1728 | ||
1729 | return 0; | |
1730 | } | |
1731 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
1732 | ||
1733 | /** | |
1734 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
1735 | * @kcontrol: mixer control | |
ac11a2b3 | 1736 | * @ucontrol: control element information |
db2a4165 FM |
1737 | * |
1738 | * Callback to set the value of a double enumerated mixer. | |
1739 | * | |
1740 | * Returns 0 for success. | |
1741 | */ | |
1742 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
1743 | struct snd_ctl_elem_value *ucontrol) | |
1744 | { | |
1745 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1746 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
1747 | unsigned int val; |
1748 | unsigned int mask, bitmask; | |
db2a4165 | 1749 | |
f8ba0b7b | 1750 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 1751 | ; |
f8ba0b7b | 1752 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
1753 | return -EINVAL; |
1754 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
1755 | mask = (bitmask - 1) << e->shift_l; | |
1756 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1757 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
1758 | return -EINVAL; |
1759 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1760 | mask |= (bitmask - 1) << e->shift_r; | |
1761 | } | |
1762 | ||
6c508c62 | 1763 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
1764 | } |
1765 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
1766 | ||
2e72f8e3 PU |
1767 | /** |
1768 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
1769 | * @kcontrol: mixer control | |
1770 | * @ucontrol: control element information | |
1771 | * | |
1772 | * Callback to get the value of a double semi enumerated mixer. | |
1773 | * | |
1774 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1775 | * used for handling bitfield coded enumeration for example. | |
1776 | * | |
1777 | * Returns 0 for success. | |
1778 | */ | |
1779 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1780 | struct snd_ctl_elem_value *ucontrol) | |
1781 | { | |
1782 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1783 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1784 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1785 | |
1786 | reg_val = snd_soc_read(codec, e->reg); | |
1787 | val = (reg_val >> e->shift_l) & e->mask; | |
1788 | for (mux = 0; mux < e->max; mux++) { | |
1789 | if (val == e->values[mux]) | |
1790 | break; | |
1791 | } | |
1792 | ucontrol->value.enumerated.item[0] = mux; | |
1793 | if (e->shift_l != e->shift_r) { | |
1794 | val = (reg_val >> e->shift_r) & e->mask; | |
1795 | for (mux = 0; mux < e->max; mux++) { | |
1796 | if (val == e->values[mux]) | |
1797 | break; | |
1798 | } | |
1799 | ucontrol->value.enumerated.item[1] = mux; | |
1800 | } | |
1801 | ||
1802 | return 0; | |
1803 | } | |
1804 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
1805 | ||
1806 | /** | |
1807 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
1808 | * @kcontrol: mixer control | |
1809 | * @ucontrol: control element information | |
1810 | * | |
1811 | * Callback to set the value of a double semi enumerated mixer. | |
1812 | * | |
1813 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1814 | * used for handling bitfield coded enumeration for example. | |
1815 | * | |
1816 | * Returns 0 for success. | |
1817 | */ | |
1818 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1819 | struct snd_ctl_elem_value *ucontrol) | |
1820 | { | |
1821 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 1822 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
1823 | unsigned int val; |
1824 | unsigned int mask; | |
2e72f8e3 PU |
1825 | |
1826 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1827 | return -EINVAL; | |
1828 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1829 | mask = e->mask << e->shift_l; | |
1830 | if (e->shift_l != e->shift_r) { | |
1831 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1832 | return -EINVAL; | |
1833 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1834 | mask |= e->mask << e->shift_r; | |
1835 | } | |
1836 | ||
6c508c62 | 1837 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
1838 | } |
1839 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
1840 | ||
db2a4165 FM |
1841 | /** |
1842 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
1843 | * @kcontrol: mixer control | |
1844 | * @uinfo: control element information | |
1845 | * | |
1846 | * Callback to provide information about an external enumerated | |
1847 | * single mixer. | |
1848 | * | |
1849 | * Returns 0 for success. | |
1850 | */ | |
1851 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
1852 | struct snd_ctl_elem_info *uinfo) | |
1853 | { | |
1854 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1855 | ||
1856 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1857 | uinfo->count = 1; | |
f8ba0b7b | 1858 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1859 | |
f8ba0b7b JS |
1860 | if (uinfo->value.enumerated.item > e->max - 1) |
1861 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1862 | strcpy(uinfo->value.enumerated.name, |
1863 | e->texts[uinfo->value.enumerated.item]); | |
1864 | return 0; | |
1865 | } | |
1866 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
1867 | ||
1868 | /** | |
1869 | * snd_soc_info_volsw_ext - external single mixer info callback | |
1870 | * @kcontrol: mixer control | |
1871 | * @uinfo: control element information | |
1872 | * | |
1873 | * Callback to provide information about a single external mixer control. | |
1874 | * | |
1875 | * Returns 0 for success. | |
1876 | */ | |
1877 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
1878 | struct snd_ctl_elem_info *uinfo) | |
1879 | { | |
a7a4ac86 PZ |
1880 | int max = kcontrol->private_value; |
1881 | ||
fd5dfad9 | 1882 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1883 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1884 | else | |
1885 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 1886 | |
db2a4165 FM |
1887 | uinfo->count = 1; |
1888 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1889 | uinfo->value.integer.max = max; |
db2a4165 FM |
1890 | return 0; |
1891 | } | |
1892 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
1893 | ||
db2a4165 FM |
1894 | /** |
1895 | * snd_soc_info_volsw - single mixer info callback | |
1896 | * @kcontrol: mixer control | |
1897 | * @uinfo: control element information | |
1898 | * | |
1899 | * Callback to provide information about a single mixer control. | |
1900 | * | |
1901 | * Returns 0 for success. | |
1902 | */ | |
1903 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
1904 | struct snd_ctl_elem_info *uinfo) | |
1905 | { | |
4eaa9819 JS |
1906 | struct soc_mixer_control *mc = |
1907 | (struct soc_mixer_control *)kcontrol->private_value; | |
1908 | int max = mc->max; | |
762b8df7 | 1909 | unsigned int shift = mc->shift; |
815ecf8d | 1910 | unsigned int rshift = mc->rshift; |
db2a4165 | 1911 | |
fd5dfad9 | 1912 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
1913 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
1914 | else | |
1915 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
1916 | ||
db2a4165 FM |
1917 | uinfo->count = shift == rshift ? 1 : 2; |
1918 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 1919 | uinfo->value.integer.max = max; |
db2a4165 FM |
1920 | return 0; |
1921 | } | |
1922 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
1923 | ||
1924 | /** | |
1925 | * snd_soc_get_volsw - single mixer get callback | |
1926 | * @kcontrol: mixer control | |
ac11a2b3 | 1927 | * @ucontrol: control element information |
db2a4165 FM |
1928 | * |
1929 | * Callback to get the value of a single mixer control. | |
1930 | * | |
1931 | * Returns 0 for success. | |
1932 | */ | |
1933 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
1934 | struct snd_ctl_elem_value *ucontrol) | |
1935 | { | |
4eaa9819 JS |
1936 | struct soc_mixer_control *mc = |
1937 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1938 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1939 | unsigned int reg = mc->reg; |
1940 | unsigned int shift = mc->shift; | |
1941 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1942 | int max = mc->max; |
815ecf8d JS |
1943 | unsigned int mask = (1 << fls(max)) - 1; |
1944 | unsigned int invert = mc->invert; | |
db2a4165 FM |
1945 | |
1946 | ucontrol->value.integer.value[0] = | |
1947 | (snd_soc_read(codec, reg) >> shift) & mask; | |
1948 | if (shift != rshift) | |
1949 | ucontrol->value.integer.value[1] = | |
1950 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
1951 | if (invert) { | |
1952 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1953 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
1954 | if (shift != rshift) |
1955 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1956 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
1957 | } |
1958 | ||
1959 | return 0; | |
1960 | } | |
1961 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
1962 | ||
1963 | /** | |
1964 | * snd_soc_put_volsw - single mixer put callback | |
1965 | * @kcontrol: mixer control | |
ac11a2b3 | 1966 | * @ucontrol: control element information |
db2a4165 FM |
1967 | * |
1968 | * Callback to set the value of a single mixer control. | |
1969 | * | |
1970 | * Returns 0 for success. | |
1971 | */ | |
1972 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
1973 | struct snd_ctl_elem_value *ucontrol) | |
1974 | { | |
4eaa9819 JS |
1975 | struct soc_mixer_control *mc = |
1976 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 1977 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
1978 | unsigned int reg = mc->reg; |
1979 | unsigned int shift = mc->shift; | |
1980 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1981 | int max = mc->max; |
815ecf8d JS |
1982 | unsigned int mask = (1 << fls(max)) - 1; |
1983 | unsigned int invert = mc->invert; | |
46f5822f | 1984 | unsigned int val, val2, val_mask; |
db2a4165 FM |
1985 | |
1986 | val = (ucontrol->value.integer.value[0] & mask); | |
1987 | if (invert) | |
a7a4ac86 | 1988 | val = max - val; |
db2a4165 FM |
1989 | val_mask = mask << shift; |
1990 | val = val << shift; | |
1991 | if (shift != rshift) { | |
1992 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1993 | if (invert) | |
a7a4ac86 | 1994 | val2 = max - val2; |
db2a4165 FM |
1995 | val_mask |= mask << rshift; |
1996 | val |= val2 << rshift; | |
1997 | } | |
6c508c62 | 1998 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
1999 | } |
2000 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2001 | ||
2002 | /** | |
2003 | * snd_soc_info_volsw_2r - double mixer info callback | |
2004 | * @kcontrol: mixer control | |
2005 | * @uinfo: control element information | |
2006 | * | |
2007 | * Callback to provide information about a double mixer control that | |
2008 | * spans 2 codec registers. | |
2009 | * | |
2010 | * Returns 0 for success. | |
2011 | */ | |
2012 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2013 | struct snd_ctl_elem_info *uinfo) | |
2014 | { | |
4eaa9819 JS |
2015 | struct soc_mixer_control *mc = |
2016 | (struct soc_mixer_control *)kcontrol->private_value; | |
2017 | int max = mc->max; | |
a7a4ac86 | 2018 | |
fd5dfad9 | 2019 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2020 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2021 | else | |
2022 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2023 | |
db2a4165 FM |
2024 | uinfo->count = 2; |
2025 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2026 | uinfo->value.integer.max = max; |
db2a4165 FM |
2027 | return 0; |
2028 | } | |
2029 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2030 | ||
2031 | /** | |
2032 | * snd_soc_get_volsw_2r - double mixer get callback | |
2033 | * @kcontrol: mixer control | |
ac11a2b3 | 2034 | * @ucontrol: control element information |
db2a4165 FM |
2035 | * |
2036 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2037 | * | |
2038 | * Returns 0 for success. | |
2039 | */ | |
2040 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2041 | struct snd_ctl_elem_value *ucontrol) | |
2042 | { | |
4eaa9819 JS |
2043 | struct soc_mixer_control *mc = |
2044 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2045 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2046 | unsigned int reg = mc->reg; |
2047 | unsigned int reg2 = mc->rreg; | |
2048 | unsigned int shift = mc->shift; | |
4eaa9819 | 2049 | int max = mc->max; |
46f5822f | 2050 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2051 | unsigned int invert = mc->invert; |
db2a4165 FM |
2052 | |
2053 | ucontrol->value.integer.value[0] = | |
2054 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2055 | ucontrol->value.integer.value[1] = | |
2056 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2057 | if (invert) { | |
2058 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2059 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2060 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2061 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2062 | } |
2063 | ||
2064 | return 0; | |
2065 | } | |
2066 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2067 | ||
2068 | /** | |
2069 | * snd_soc_put_volsw_2r - double mixer set callback | |
2070 | * @kcontrol: mixer control | |
ac11a2b3 | 2071 | * @ucontrol: control element information |
db2a4165 FM |
2072 | * |
2073 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2074 | * | |
2075 | * Returns 0 for success. | |
2076 | */ | |
2077 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2078 | struct snd_ctl_elem_value *ucontrol) | |
2079 | { | |
4eaa9819 JS |
2080 | struct soc_mixer_control *mc = |
2081 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2082 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2083 | unsigned int reg = mc->reg; |
2084 | unsigned int reg2 = mc->rreg; | |
2085 | unsigned int shift = mc->shift; | |
4eaa9819 | 2086 | int max = mc->max; |
815ecf8d JS |
2087 | unsigned int mask = (1 << fls(max)) - 1; |
2088 | unsigned int invert = mc->invert; | |
db2a4165 | 2089 | int err; |
46f5822f | 2090 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2091 | |
2092 | val_mask = mask << shift; | |
2093 | val = (ucontrol->value.integer.value[0] & mask); | |
2094 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2095 | ||
2096 | if (invert) { | |
a7a4ac86 PZ |
2097 | val = max - val; |
2098 | val2 = max - val2; | |
db2a4165 FM |
2099 | } |
2100 | ||
2101 | val = val << shift; | |
2102 | val2 = val2 << shift; | |
2103 | ||
6c508c62 | 2104 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2105 | if (err < 0) |
db2a4165 FM |
2106 | return err; |
2107 | ||
6c508c62 | 2108 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2109 | return err; |
2110 | } | |
2111 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2112 | ||
e13ac2e9 MB |
2113 | /** |
2114 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2115 | * @kcontrol: mixer control | |
2116 | * @uinfo: control element information | |
2117 | * | |
2118 | * Callback to provide information about a signed mixer control. | |
2119 | * | |
2120 | * Returns 0 for success. | |
2121 | */ | |
2122 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2123 | struct snd_ctl_elem_info *uinfo) | |
2124 | { | |
4eaa9819 JS |
2125 | struct soc_mixer_control *mc = |
2126 | (struct soc_mixer_control *)kcontrol->private_value; | |
2127 | int max = mc->max; | |
2128 | int min = mc->min; | |
e13ac2e9 MB |
2129 | |
2130 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2131 | uinfo->count = 2; | |
2132 | uinfo->value.integer.min = 0; | |
2133 | uinfo->value.integer.max = max-min; | |
2134 | return 0; | |
2135 | } | |
2136 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2137 | ||
2138 | /** | |
2139 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2140 | * @kcontrol: mixer control | |
ac11a2b3 | 2141 | * @ucontrol: control element information |
e13ac2e9 MB |
2142 | * |
2143 | * Callback to get the value of a signed mixer control. | |
2144 | * | |
2145 | * Returns 0 for success. | |
2146 | */ | |
2147 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2148 | struct snd_ctl_elem_value *ucontrol) | |
2149 | { | |
4eaa9819 JS |
2150 | struct soc_mixer_control *mc = |
2151 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2152 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2153 | unsigned int reg = mc->reg; |
4eaa9819 | 2154 | int min = mc->min; |
e13ac2e9 MB |
2155 | int val = snd_soc_read(codec, reg); |
2156 | ||
2157 | ucontrol->value.integer.value[0] = | |
2158 | ((signed char)(val & 0xff))-min; | |
2159 | ucontrol->value.integer.value[1] = | |
2160 | ((signed char)((val >> 8) & 0xff))-min; | |
2161 | return 0; | |
2162 | } | |
2163 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2164 | ||
2165 | /** | |
2166 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2167 | * @kcontrol: mixer control | |
ac11a2b3 | 2168 | * @ucontrol: control element information |
e13ac2e9 MB |
2169 | * |
2170 | * Callback to set the value of a signed mixer control. | |
2171 | * | |
2172 | * Returns 0 for success. | |
2173 | */ | |
2174 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2175 | struct snd_ctl_elem_value *ucontrol) | |
2176 | { | |
4eaa9819 JS |
2177 | struct soc_mixer_control *mc = |
2178 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2179 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2180 | unsigned int reg = mc->reg; |
4eaa9819 | 2181 | int min = mc->min; |
46f5822f | 2182 | unsigned int val; |
e13ac2e9 MB |
2183 | |
2184 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2185 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2186 | ||
6c508c62 | 2187 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2188 | } |
2189 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2190 | ||
8c6529db LG |
2191 | /** |
2192 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2193 | * @dai: DAI | |
2194 | * @clk_id: DAI specific clock ID | |
2195 | * @freq: new clock frequency in Hz | |
2196 | * @dir: new clock direction - input/output. | |
2197 | * | |
2198 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2199 | */ | |
2200 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2201 | unsigned int freq, int dir) | |
2202 | { | |
3f1a4d82 | 2203 | if (dai->ops && dai->ops->set_sysclk) |
6335d055 | 2204 | return dai->ops->set_sysclk(dai, clk_id, freq, dir); |
8c6529db LG |
2205 | else |
2206 | return -EINVAL; | |
2207 | } | |
2208 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2209 | ||
2210 | /** | |
2211 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2212 | * @dai: DAI | |
ac11a2b3 | 2213 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2214 | * @div: new clock divisor. |
2215 | * | |
2216 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2217 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2218 | * and frame clocks as low as possible to save system power. | |
2219 | */ | |
2220 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2221 | int div_id, int div) | |
2222 | { | |
3f1a4d82 | 2223 | if (dai->ops && dai->ops->set_clkdiv) |
6335d055 | 2224 | return dai->ops->set_clkdiv(dai, div_id, div); |
8c6529db LG |
2225 | else |
2226 | return -EINVAL; | |
2227 | } | |
2228 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2229 | ||
2230 | /** | |
2231 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2232 | * @dai: DAI | |
2233 | * @pll_id: DAI specific PLL ID | |
85488037 | 2234 | * @source: DAI specific source for the PLL |
8c6529db LG |
2235 | * @freq_in: PLL input clock frequency in Hz |
2236 | * @freq_out: requested PLL output clock frequency in Hz | |
2237 | * | |
2238 | * Configures and enables PLL to generate output clock based on input clock. | |
2239 | */ | |
85488037 MB |
2240 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2241 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2242 | { |
3f1a4d82 | 2243 | if (dai->ops && dai->ops->set_pll) |
85488037 MB |
2244 | return dai->ops->set_pll(dai, pll_id, source, |
2245 | freq_in, freq_out); | |
8c6529db LG |
2246 | else |
2247 | return -EINVAL; | |
2248 | } | |
2249 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2250 | ||
2251 | /** | |
2252 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2253 | * @dai: DAI | |
8c6529db LG |
2254 | * @fmt: SND_SOC_DAIFMT_ format value. |
2255 | * | |
2256 | * Configures the DAI hardware format and clocking. | |
2257 | */ | |
2258 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2259 | { | |
3f1a4d82 | 2260 | if (dai->ops && dai->ops->set_fmt) |
6335d055 | 2261 | return dai->ops->set_fmt(dai, fmt); |
8c6529db LG |
2262 | else |
2263 | return -EINVAL; | |
2264 | } | |
2265 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2266 | ||
2267 | /** | |
2268 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2269 | * @dai: DAI | |
a5479e38 DR |
2270 | * @tx_mask: bitmask representing active TX slots. |
2271 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2272 | * @slots: Number of slots in use. |
a5479e38 | 2273 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2274 | * |
2275 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2276 | * specific. | |
2277 | */ | |
2278 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2279 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2280 | { |
3f1a4d82 | 2281 | if (dai->ops && dai->ops->set_tdm_slot) |
a5479e38 DR |
2282 | return dai->ops->set_tdm_slot(dai, tx_mask, rx_mask, |
2283 | slots, slot_width); | |
8c6529db LG |
2284 | else |
2285 | return -EINVAL; | |
2286 | } | |
2287 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2288 | ||
472df3cb BS |
2289 | /** |
2290 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2291 | * @dai: DAI | |
2292 | * @tx_num: how many TX channels | |
2293 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2294 | * 0~num-1 uses | |
2295 | * @rx_num: how many RX channels | |
2296 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2297 | * 0~num-1 uses | |
2298 | * | |
2299 | * configure the relationship between channel number and TDM slot number. | |
2300 | */ | |
2301 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2302 | unsigned int tx_num, unsigned int *tx_slot, | |
2303 | unsigned int rx_num, unsigned int *rx_slot) | |
2304 | { | |
2305 | if (dai->ops && dai->ops->set_channel_map) | |
2306 | return dai->ops->set_channel_map(dai, tx_num, tx_slot, | |
2307 | rx_num, rx_slot); | |
2308 | else | |
2309 | return -EINVAL; | |
2310 | } | |
2311 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2312 | ||
8c6529db LG |
2313 | /** |
2314 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2315 | * @dai: DAI | |
2316 | * @tristate: tristate enable | |
2317 | * | |
2318 | * Tristates the DAI so that others can use it. | |
2319 | */ | |
2320 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2321 | { | |
3f1a4d82 | 2322 | if (dai->ops && dai->ops->set_tristate) |
6335d055 | 2323 | return dai->ops->set_tristate(dai, tristate); |
8c6529db LG |
2324 | else |
2325 | return -EINVAL; | |
2326 | } | |
2327 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2328 | ||
2329 | /** | |
2330 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2331 | * @dai: DAI | |
2332 | * @mute: mute enable | |
2333 | * | |
2334 | * Mutes the DAI DAC. | |
2335 | */ | |
2336 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2337 | { | |
3f1a4d82 | 2338 | if (dai->ops && dai->ops->digital_mute) |
6335d055 | 2339 | return dai->ops->digital_mute(dai, mute); |
8c6529db LG |
2340 | else |
2341 | return -EINVAL; | |
2342 | } | |
2343 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2344 | ||
c5af3a2e MB |
2345 | /** |
2346 | * snd_soc_register_card - Register a card with the ASoC core | |
2347 | * | |
ac11a2b3 | 2348 | * @card: Card to register |
c5af3a2e MB |
2349 | * |
2350 | * Note that currently this is an internal only function: it will be | |
2351 | * exposed to machine drivers after further backporting of ASoC v2 | |
2352 | * registration APIs. | |
2353 | */ | |
2354 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2355 | { | |
2356 | if (!card->name || !card->dev) | |
2357 | return -EINVAL; | |
2358 | ||
2359 | INIT_LIST_HEAD(&card->list); | |
2360 | card->instantiated = 0; | |
2361 | ||
2362 | mutex_lock(&client_mutex); | |
2363 | list_add(&card->list, &card_list); | |
435c5e25 | 2364 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2365 | mutex_unlock(&client_mutex); |
2366 | ||
2367 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2368 | ||
2369 | return 0; | |
2370 | } | |
2371 | ||
2372 | /** | |
2373 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2374 | * | |
ac11a2b3 | 2375 | * @card: Card to unregister |
c5af3a2e MB |
2376 | * |
2377 | * Note that currently this is an internal only function: it will be | |
2378 | * exposed to machine drivers after further backporting of ASoC v2 | |
2379 | * registration APIs. | |
2380 | */ | |
2381 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2382 | { | |
2383 | mutex_lock(&client_mutex); | |
2384 | list_del(&card->list); | |
2385 | mutex_unlock(&client_mutex); | |
2386 | ||
2387 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); | |
2388 | ||
2389 | return 0; | |
2390 | } | |
2391 | ||
9115171a MB |
2392 | /** |
2393 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2394 | * | |
ac11a2b3 | 2395 | * @dai: DAI to register |
9115171a MB |
2396 | */ |
2397 | int snd_soc_register_dai(struct snd_soc_dai *dai) | |
2398 | { | |
2399 | if (!dai->name) | |
2400 | return -EINVAL; | |
2401 | ||
2402 | /* The device should become mandatory over time */ | |
2403 | if (!dai->dev) | |
2404 | printk(KERN_WARNING "No device for DAI %s\n", dai->name); | |
2405 | ||
6335d055 EM |
2406 | if (!dai->ops) |
2407 | dai->ops = &null_dai_ops; | |
2408 | ||
9115171a MB |
2409 | INIT_LIST_HEAD(&dai->list); |
2410 | ||
2411 | mutex_lock(&client_mutex); | |
2412 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2413 | snd_soc_instantiate_cards(); |
9115171a MB |
2414 | mutex_unlock(&client_mutex); |
2415 | ||
2416 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2417 | ||
2418 | return 0; | |
2419 | } | |
2420 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2421 | ||
2422 | /** | |
2423 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2424 | * | |
ac11a2b3 | 2425 | * @dai: DAI to unregister |
9115171a MB |
2426 | */ |
2427 | void snd_soc_unregister_dai(struct snd_soc_dai *dai) | |
2428 | { | |
2429 | mutex_lock(&client_mutex); | |
2430 | list_del(&dai->list); | |
2431 | mutex_unlock(&client_mutex); | |
2432 | ||
2433 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
2434 | } | |
2435 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
2436 | ||
2437 | /** | |
2438 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
2439 | * | |
ac11a2b3 MB |
2440 | * @dai: Array of DAIs to register |
2441 | * @count: Number of DAIs | |
9115171a MB |
2442 | */ |
2443 | int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count) | |
2444 | { | |
2445 | int i, ret; | |
2446 | ||
2447 | for (i = 0; i < count; i++) { | |
2448 | ret = snd_soc_register_dai(&dai[i]); | |
2449 | if (ret != 0) | |
2450 | goto err; | |
2451 | } | |
2452 | ||
2453 | return 0; | |
2454 | ||
2455 | err: | |
2456 | for (i--; i >= 0; i--) | |
2457 | snd_soc_unregister_dai(&dai[i]); | |
2458 | ||
2459 | return ret; | |
2460 | } | |
2461 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
2462 | ||
2463 | /** | |
2464 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
2465 | * | |
ac11a2b3 MB |
2466 | * @dai: Array of DAIs to unregister |
2467 | * @count: Number of DAIs | |
9115171a MB |
2468 | */ |
2469 | void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count) | |
2470 | { | |
2471 | int i; | |
2472 | ||
2473 | for (i = 0; i < count; i++) | |
2474 | snd_soc_unregister_dai(&dai[i]); | |
2475 | } | |
2476 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
2477 | ||
12a48a8c MB |
2478 | /** |
2479 | * snd_soc_register_platform - Register a platform with the ASoC core | |
2480 | * | |
ac11a2b3 | 2481 | * @platform: platform to register |
12a48a8c MB |
2482 | */ |
2483 | int snd_soc_register_platform(struct snd_soc_platform *platform) | |
2484 | { | |
2485 | if (!platform->name) | |
2486 | return -EINVAL; | |
2487 | ||
2488 | INIT_LIST_HEAD(&platform->list); | |
2489 | ||
2490 | mutex_lock(&client_mutex); | |
2491 | list_add(&platform->list, &platform_list); | |
435c5e25 | 2492 | snd_soc_instantiate_cards(); |
12a48a8c MB |
2493 | mutex_unlock(&client_mutex); |
2494 | ||
2495 | pr_debug("Registered platform '%s'\n", platform->name); | |
2496 | ||
2497 | return 0; | |
2498 | } | |
2499 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
2500 | ||
2501 | /** | |
2502 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
2503 | * | |
ac11a2b3 | 2504 | * @platform: platform to unregister |
12a48a8c MB |
2505 | */ |
2506 | void snd_soc_unregister_platform(struct snd_soc_platform *platform) | |
2507 | { | |
2508 | mutex_lock(&client_mutex); | |
2509 | list_del(&platform->list); | |
2510 | mutex_unlock(&client_mutex); | |
2511 | ||
2512 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
2513 | } | |
2514 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
2515 | ||
151ab22c MB |
2516 | static u64 codec_format_map[] = { |
2517 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
2518 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
2519 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
2520 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
2521 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
2522 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
2523 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2524 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
2525 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
2526 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
2527 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
2528 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
2529 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
2530 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
2531 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
2532 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
2533 | }; | |
2534 | ||
2535 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
2536 | * the endianness of the data but we're using the CPU format | |
2537 | * definitions which do need to include endianness so we ensure that | |
2538 | * codec DAIs always have both big and little endian variants set. | |
2539 | */ | |
2540 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
2541 | { | |
2542 | int i; | |
2543 | ||
2544 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
2545 | if (stream->formats & codec_format_map[i]) | |
2546 | stream->formats |= codec_format_map[i]; | |
2547 | } | |
2548 | ||
0d0cf00a MB |
2549 | /** |
2550 | * snd_soc_register_codec - Register a codec with the ASoC core | |
2551 | * | |
ac11a2b3 | 2552 | * @codec: codec to register |
0d0cf00a MB |
2553 | */ |
2554 | int snd_soc_register_codec(struct snd_soc_codec *codec) | |
2555 | { | |
151ab22c MB |
2556 | int i; |
2557 | ||
0d0cf00a MB |
2558 | if (!codec->name) |
2559 | return -EINVAL; | |
2560 | ||
2561 | /* The device should become mandatory over time */ | |
2562 | if (!codec->dev) | |
2563 | printk(KERN_WARNING "No device for codec %s\n", codec->name); | |
2564 | ||
2565 | INIT_LIST_HEAD(&codec->list); | |
2566 | ||
151ab22c MB |
2567 | for (i = 0; i < codec->num_dai; i++) { |
2568 | fixup_codec_formats(&codec->dai[i].playback); | |
2569 | fixup_codec_formats(&codec->dai[i].capture); | |
2570 | } | |
2571 | ||
0d0cf00a MB |
2572 | mutex_lock(&client_mutex); |
2573 | list_add(&codec->list, &codec_list); | |
2574 | snd_soc_instantiate_cards(); | |
2575 | mutex_unlock(&client_mutex); | |
2576 | ||
2577 | pr_debug("Registered codec '%s'\n", codec->name); | |
2578 | ||
2579 | return 0; | |
2580 | } | |
2581 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
2582 | ||
2583 | /** | |
2584 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
2585 | * | |
ac11a2b3 | 2586 | * @codec: codec to unregister |
0d0cf00a MB |
2587 | */ |
2588 | void snd_soc_unregister_codec(struct snd_soc_codec *codec) | |
2589 | { | |
2590 | mutex_lock(&client_mutex); | |
2591 | list_del(&codec->list); | |
2592 | mutex_unlock(&client_mutex); | |
2593 | ||
2594 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
2595 | } | |
2596 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
2597 | ||
c9b3a40f | 2598 | static int __init snd_soc_init(void) |
db2a4165 | 2599 | { |
384c89e2 MB |
2600 | #ifdef CONFIG_DEBUG_FS |
2601 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
2602 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
2603 | printk(KERN_WARNING | |
2604 | "ASoC: Failed to create debugfs directory\n"); | |
2605 | debugfs_root = NULL; | |
2606 | } | |
2607 | #endif | |
2608 | ||
db2a4165 FM |
2609 | return platform_driver_register(&soc_driver); |
2610 | } | |
2611 | ||
7d8c16a6 | 2612 | static void __exit snd_soc_exit(void) |
db2a4165 | 2613 | { |
384c89e2 MB |
2614 | #ifdef CONFIG_DEBUG_FS |
2615 | debugfs_remove_recursive(debugfs_root); | |
2616 | #endif | |
3ff3f64b | 2617 | platform_driver_unregister(&soc_driver); |
db2a4165 FM |
2618 | } |
2619 | ||
2620 | module_init(snd_soc_init); | |
2621 | module_exit(snd_soc_exit); | |
2622 | ||
2623 | /* Module information */ | |
d331124d | 2624 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
2625 | MODULE_DESCRIPTION("ALSA SoC Core"); |
2626 | MODULE_LICENSE("GPL"); | |
8b45a209 | 2627 | MODULE_ALIAS("platform:soc-audio"); |