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 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 FM |
35 | #include <sound/core.h> |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
39 | #include <sound/soc-dapm.h> | |
40 | #include <sound/initval.h> | |
41 | ||
f0fba2ad LG |
42 | #define NAME_SIZE 32 |
43 | ||
db2a4165 | 44 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
45 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
46 | ||
384c89e2 MB |
47 | #ifdef CONFIG_DEBUG_FS |
48 | static struct dentry *debugfs_root; | |
49 | #endif | |
50 | ||
c5af3a2e MB |
51 | static DEFINE_MUTEX(client_mutex); |
52 | static LIST_HEAD(card_list); | |
9115171a | 53 | static LIST_HEAD(dai_list); |
12a48a8c | 54 | static LIST_HEAD(platform_list); |
0d0cf00a | 55 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
56 | |
57 | static int snd_soc_register_card(struct snd_soc_card *card); | |
58 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 59 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
965ac42c LG |
70 | /* |
71 | * This function forces any delayed work to be queued and run. | |
72 | */ | |
73 | static int run_delayed_work(struct delayed_work *dwork) | |
74 | { | |
75 | int ret; | |
76 | ||
77 | /* cancel any work waiting to be queued. */ | |
78 | ret = cancel_delayed_work(dwork); | |
79 | ||
80 | /* if there was any work waiting then we run it now and | |
81 | * wait for it's completion */ | |
82 | if (ret) { | |
83 | schedule_delayed_work(dwork, 0); | |
84 | flush_scheduled_work(); | |
85 | } | |
86 | return ret; | |
87 | } | |
88 | ||
2624d5fa MB |
89 | /* codec register dump */ |
90 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
91 | { | |
5164d74d | 92 | int ret, i, step = 1, count = 0; |
2624d5fa | 93 | |
f0fba2ad | 94 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
95 | return 0; |
96 | ||
f0fba2ad LG |
97 | if (codec->driver->reg_cache_step) |
98 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
99 | |
100 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
101 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
102 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
103 | continue; |
104 | ||
105 | count += sprintf(buf + count, "%2x: ", i); | |
106 | if (count >= PAGE_SIZE - 1) | |
107 | break; | |
108 | ||
f0fba2ad LG |
109 | if (codec->driver->display_register) { |
110 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 111 | PAGE_SIZE - count, i); |
5164d74d MB |
112 | } else { |
113 | /* If the read fails it's almost certainly due to | |
114 | * the register being volatile and the device being | |
115 | * powered off. | |
116 | */ | |
f0fba2ad | 117 | ret = codec->driver->read(codec, i); |
5164d74d MB |
118 | if (ret >= 0) |
119 | count += snprintf(buf + count, | |
120 | PAGE_SIZE - count, | |
121 | "%4x", ret); | |
122 | else | |
123 | count += snprintf(buf + count, | |
124 | PAGE_SIZE - count, | |
125 | "<no data: %d>", ret); | |
126 | } | |
2624d5fa MB |
127 | |
128 | if (count >= PAGE_SIZE - 1) | |
129 | break; | |
130 | ||
131 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
132 | if (count >= PAGE_SIZE - 1) | |
133 | break; | |
134 | } | |
135 | ||
136 | /* Truncate count; min() would cause a warning */ | |
137 | if (count >= PAGE_SIZE) | |
138 | count = PAGE_SIZE - 1; | |
139 | ||
140 | return count; | |
141 | } | |
142 | static ssize_t codec_reg_show(struct device *dev, | |
143 | struct device_attribute *attr, char *buf) | |
144 | { | |
f0fba2ad LG |
145 | struct snd_soc_pcm_runtime *rtd = |
146 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
147 | ||
148 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
149 | } |
150 | ||
151 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
152 | ||
dbe21408 MB |
153 | static ssize_t pmdown_time_show(struct device *dev, |
154 | struct device_attribute *attr, char *buf) | |
155 | { | |
f0fba2ad LG |
156 | struct snd_soc_pcm_runtime *rtd = |
157 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 158 | |
f0fba2ad | 159 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
160 | } |
161 | ||
162 | static ssize_t pmdown_time_set(struct device *dev, | |
163 | struct device_attribute *attr, | |
164 | const char *buf, size_t count) | |
165 | { | |
f0fba2ad LG |
166 | struct snd_soc_pcm_runtime *rtd = |
167 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 168 | int ret; |
dbe21408 | 169 | |
c593b520 MB |
170 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
171 | if (ret) | |
172 | return ret; | |
dbe21408 MB |
173 | |
174 | return count; | |
175 | } | |
176 | ||
177 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
178 | ||
2624d5fa MB |
179 | #ifdef CONFIG_DEBUG_FS |
180 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
181 | { | |
182 | file->private_data = inode->i_private; | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
187 | size_t count, loff_t *ppos) | |
188 | { | |
189 | ssize_t ret; | |
190 | struct snd_soc_codec *codec = file->private_data; | |
191 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
192 | if (!buf) | |
193 | return -ENOMEM; | |
194 | ret = soc_codec_reg_show(codec, buf); | |
195 | if (ret >= 0) | |
196 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
197 | kfree(buf); | |
198 | return ret; | |
199 | } | |
200 | ||
201 | static ssize_t codec_reg_write_file(struct file *file, | |
202 | const char __user *user_buf, size_t count, loff_t *ppos) | |
203 | { | |
204 | char buf[32]; | |
205 | int buf_size; | |
206 | char *start = buf; | |
207 | unsigned long reg, value; | |
208 | int step = 1; | |
209 | struct snd_soc_codec *codec = file->private_data; | |
210 | ||
211 | buf_size = min(count, (sizeof(buf)-1)); | |
212 | if (copy_from_user(buf, user_buf, buf_size)) | |
213 | return -EFAULT; | |
214 | buf[buf_size] = 0; | |
215 | ||
f0fba2ad LG |
216 | if (codec->driver->reg_cache_step) |
217 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
218 | |
219 | while (*start == ' ') | |
220 | start++; | |
221 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 222 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
223 | return -EINVAL; |
224 | while (*start == ' ') | |
225 | start++; | |
226 | if (strict_strtoul(start, 16, &value)) | |
227 | return -EINVAL; | |
f0fba2ad | 228 | codec->driver->write(codec, reg, value); |
2624d5fa MB |
229 | return buf_size; |
230 | } | |
231 | ||
232 | static const struct file_operations codec_reg_fops = { | |
233 | .open = codec_reg_open_file, | |
234 | .read = codec_reg_read_file, | |
235 | .write = codec_reg_write_file, | |
6038f373 | 236 | .llseek = default_llseek, |
2624d5fa MB |
237 | }; |
238 | ||
239 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
240 | { | |
6ba6c9c3 | 241 | codec->debugfs_codec_root = debugfs_create_dir(codec->name , |
2624d5fa MB |
242 | debugfs_root); |
243 | if (!codec->debugfs_codec_root) { | |
244 | printk(KERN_WARNING | |
245 | "ASoC: Failed to create codec debugfs directory\n"); | |
246 | return; | |
247 | } | |
248 | ||
249 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
250 | codec->debugfs_codec_root, | |
251 | codec, &codec_reg_fops); | |
252 | if (!codec->debugfs_reg) | |
253 | printk(KERN_WARNING | |
254 | "ASoC: Failed to create codec register debugfs file\n"); | |
255 | ||
708fafb3 | 256 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, |
2624d5fa | 257 | codec->debugfs_codec_root, |
ce6120cc | 258 | &codec->dapm.pop_time); |
2624d5fa MB |
259 | if (!codec->debugfs_pop_time) |
260 | printk(KERN_WARNING | |
261 | "Failed to create pop time debugfs file\n"); | |
262 | ||
ce6120cc | 263 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 264 | codec->debugfs_codec_root); |
ce6120cc | 265 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
266 | printk(KERN_WARNING |
267 | "Failed to create DAPM debugfs directory\n"); | |
268 | ||
ce6120cc | 269 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
270 | } |
271 | ||
272 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
273 | { | |
274 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
275 | } | |
276 | ||
c3c5a19a MB |
277 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
278 | size_t count, loff_t *ppos) | |
279 | { | |
280 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 281 | ssize_t len, ret = 0; |
c3c5a19a MB |
282 | struct snd_soc_codec *codec; |
283 | ||
284 | if (!buf) | |
285 | return -ENOMEM; | |
286 | ||
2b194f9d MB |
287 | list_for_each_entry(codec, &codec_list, list) { |
288 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
289 | codec->name); | |
290 | if (len >= 0) | |
291 | ret += len; | |
292 | if (ret > PAGE_SIZE) { | |
293 | ret = PAGE_SIZE; | |
294 | break; | |
295 | } | |
296 | } | |
c3c5a19a MB |
297 | |
298 | if (ret >= 0) | |
299 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
300 | ||
301 | kfree(buf); | |
302 | ||
303 | return ret; | |
304 | } | |
305 | ||
306 | static const struct file_operations codec_list_fops = { | |
307 | .read = codec_list_read_file, | |
308 | .llseek = default_llseek,/* read accesses f_pos */ | |
309 | }; | |
310 | ||
f3208780 MB |
311 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
312 | size_t count, loff_t *ppos) | |
313 | { | |
314 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 315 | ssize_t len, ret = 0; |
f3208780 MB |
316 | struct snd_soc_dai *dai; |
317 | ||
318 | if (!buf) | |
319 | return -ENOMEM; | |
320 | ||
2b194f9d MB |
321 | list_for_each_entry(dai, &dai_list, list) { |
322 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
323 | if (len >= 0) | |
324 | ret += len; | |
325 | if (ret > PAGE_SIZE) { | |
326 | ret = PAGE_SIZE; | |
327 | break; | |
328 | } | |
329 | } | |
f3208780 | 330 | |
2b194f9d | 331 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
332 | |
333 | kfree(buf); | |
334 | ||
335 | return ret; | |
336 | } | |
337 | ||
338 | static const struct file_operations dai_list_fops = { | |
339 | .read = dai_list_read_file, | |
340 | .llseek = default_llseek,/* read accesses f_pos */ | |
341 | }; | |
342 | ||
19c7ac27 MB |
343 | static ssize_t platform_list_read_file(struct file *file, |
344 | char __user *user_buf, | |
345 | size_t count, loff_t *ppos) | |
346 | { | |
347 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 348 | ssize_t len, ret = 0; |
19c7ac27 MB |
349 | struct snd_soc_platform *platform; |
350 | ||
351 | if (!buf) | |
352 | return -ENOMEM; | |
353 | ||
2b194f9d MB |
354 | list_for_each_entry(platform, &platform_list, list) { |
355 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
356 | platform->name); | |
357 | if (len >= 0) | |
358 | ret += len; | |
359 | if (ret > PAGE_SIZE) { | |
360 | ret = PAGE_SIZE; | |
361 | break; | |
362 | } | |
363 | } | |
19c7ac27 | 364 | |
2b194f9d | 365 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
366 | |
367 | kfree(buf); | |
368 | ||
369 | return ret; | |
370 | } | |
371 | ||
372 | static const struct file_operations platform_list_fops = { | |
373 | .read = platform_list_read_file, | |
374 | .llseek = default_llseek,/* read accesses f_pos */ | |
375 | }; | |
376 | ||
2624d5fa MB |
377 | #else |
378 | ||
379 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
380 | { | |
381 | } | |
382 | ||
383 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
384 | { | |
385 | } | |
386 | #endif | |
387 | ||
db2a4165 FM |
388 | #ifdef CONFIG_SND_SOC_AC97_BUS |
389 | /* unregister ac97 codec */ | |
390 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
391 | { | |
392 | if (codec->ac97->dev.bus) | |
393 | device_unregister(&codec->ac97->dev); | |
394 | return 0; | |
395 | } | |
396 | ||
397 | /* stop no dev release warning */ | |
398 | static void soc_ac97_device_release(struct device *dev){} | |
399 | ||
400 | /* register ac97 codec to bus */ | |
401 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
402 | { | |
403 | int err; | |
404 | ||
405 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 406 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
407 | codec->ac97->dev.release = soc_ac97_device_release; |
408 | ||
bb072bf0 | 409 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 410 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
411 | err = device_register(&codec->ac97->dev); |
412 | if (err < 0) { | |
413 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
414 | codec->ac97->dev.bus = NULL; | |
415 | return err; | |
416 | } | |
417 | return 0; | |
418 | } | |
419 | #endif | |
420 | ||
06f409d7 MB |
421 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
422 | { | |
423 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
424 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
425 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
426 | int ret; |
427 | ||
f0fba2ad LG |
428 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
429 | rtd->dai_link->symmetric_rates) { | |
430 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
431 | rtd->rate); | |
06f409d7 MB |
432 | |
433 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
434 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
435 | rtd->rate, |
436 | rtd->rate); | |
06f409d7 | 437 | if (ret < 0) { |
f0fba2ad | 438 | dev_err(&rtd->dev, |
06f409d7 MB |
439 | "Unable to apply rate symmetry constraint: %d\n", ret); |
440 | return ret; | |
441 | } | |
442 | } | |
443 | ||
444 | return 0; | |
445 | } | |
446 | ||
db2a4165 FM |
447 | /* |
448 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
449 | * then initialized and any private data can be allocated. This also calls | |
450 | * startup for the cpu DAI, platform, machine and codec DAI. | |
451 | */ | |
452 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
453 | { | |
454 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 455 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
456 | struct snd_soc_platform *platform = rtd->platform; |
457 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
458 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
459 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
460 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
461 | int ret = 0; |
462 | ||
463 | mutex_lock(&pcm_mutex); | |
464 | ||
465 | /* startup the audio subsystem */ | |
f0fba2ad LG |
466 | if (cpu_dai->driver->ops->startup) { |
467 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
468 | if (ret < 0) { |
469 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 470 | cpu_dai->name); |
db2a4165 FM |
471 | goto out; |
472 | } | |
473 | } | |
474 | ||
f0fba2ad LG |
475 | if (platform->driver->ops->open) { |
476 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
477 | if (ret < 0) { |
478 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
479 | goto platform_err; | |
480 | } | |
481 | } | |
482 | ||
f0fba2ad LG |
483 | if (codec_dai->driver->ops->startup) { |
484 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 485 | if (ret < 0) { |
cb666e5b LG |
486 | printk(KERN_ERR "asoc: can't open codec %s\n", |
487 | codec_dai->name); | |
488 | goto codec_dai_err; | |
db2a4165 FM |
489 | } |
490 | } | |
491 | ||
f0fba2ad LG |
492 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
493 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 494 | if (ret < 0) { |
f0fba2ad | 495 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 496 | goto machine_err; |
db2a4165 FM |
497 | } |
498 | } | |
499 | ||
db2a4165 FM |
500 | /* Check that the codec and cpu DAI's are compatible */ |
501 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
502 | runtime->hw.rate_min = | |
f0fba2ad LG |
503 | max(codec_dai_drv->playback.rate_min, |
504 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 505 | runtime->hw.rate_max = |
f0fba2ad LG |
506 | min(codec_dai_drv->playback.rate_max, |
507 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 508 | runtime->hw.channels_min = |
f0fba2ad LG |
509 | max(codec_dai_drv->playback.channels_min, |
510 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 511 | runtime->hw.channels_max = |
f0fba2ad LG |
512 | min(codec_dai_drv->playback.channels_max, |
513 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 514 | runtime->hw.formats = |
f0fba2ad | 515 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 516 | runtime->hw.rates = |
f0fba2ad LG |
517 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
518 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 519 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
520 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
521 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 522 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 523 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
524 | } else { |
525 | runtime->hw.rate_min = | |
f0fba2ad LG |
526 | max(codec_dai_drv->capture.rate_min, |
527 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 528 | runtime->hw.rate_max = |
f0fba2ad LG |
529 | min(codec_dai_drv->capture.rate_max, |
530 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 531 | runtime->hw.channels_min = |
f0fba2ad LG |
532 | max(codec_dai_drv->capture.channels_min, |
533 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 534 | runtime->hw.channels_max = |
f0fba2ad LG |
535 | min(codec_dai_drv->capture.channels_max, |
536 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 537 | runtime->hw.formats = |
f0fba2ad | 538 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 539 | runtime->hw.rates = |
f0fba2ad LG |
540 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
541 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 542 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
543 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
544 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 545 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 546 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
547 | } |
548 | ||
549 | snd_pcm_limit_hw_rates(runtime); | |
550 | if (!runtime->hw.rates) { | |
551 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 552 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 553 | goto config_err; |
db2a4165 FM |
554 | } |
555 | if (!runtime->hw.formats) { | |
556 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 557 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 558 | goto config_err; |
db2a4165 FM |
559 | } |
560 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
561 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 562 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 563 | goto config_err; |
db2a4165 FM |
564 | } |
565 | ||
06f409d7 MB |
566 | /* Symmetry only applies if we've already got an active stream. */ |
567 | if (cpu_dai->active || codec_dai->active) { | |
568 | ret = soc_pcm_apply_symmetry(substream); | |
569 | if (ret != 0) | |
bb1c0478 | 570 | goto config_err; |
06f409d7 MB |
571 | } |
572 | ||
f0fba2ad LG |
573 | pr_debug("asoc: %s <-> %s info:\n", |
574 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
575 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
576 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
577 | runtime->hw.channels_max); | |
578 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
579 | runtime->hw.rate_max); | |
db2a4165 | 580 | |
14dc5734 | 581 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
582 | cpu_dai->playback_active++; |
583 | codec_dai->playback_active++; | |
14dc5734 | 584 | } else { |
f0fba2ad LG |
585 | cpu_dai->capture_active++; |
586 | codec_dai->capture_active++; | |
14dc5734 JB |
587 | } |
588 | cpu_dai->active++; | |
589 | codec_dai->active++; | |
f0fba2ad | 590 | rtd->codec->active++; |
db2a4165 FM |
591 | mutex_unlock(&pcm_mutex); |
592 | return 0; | |
593 | ||
bb1c0478 | 594 | config_err: |
f0fba2ad LG |
595 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
596 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 597 | |
bb1c0478 | 598 | machine_err: |
f0fba2ad LG |
599 | if (codec_dai->driver->ops->shutdown) |
600 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 601 | |
cb666e5b | 602 | codec_dai_err: |
f0fba2ad LG |
603 | if (platform->driver->ops->close) |
604 | platform->driver->ops->close(substream); | |
db2a4165 FM |
605 | |
606 | platform_err: | |
f0fba2ad LG |
607 | if (cpu_dai->driver->ops->shutdown) |
608 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
609 | out: |
610 | mutex_unlock(&pcm_mutex); | |
611 | return ret; | |
612 | } | |
613 | ||
614 | /* | |
3a4fa0a2 | 615 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
616 | * This is to ensure there are no pops or clicks in between any music tracks |
617 | * due to DAPM power cycling. | |
618 | */ | |
4484bb2e | 619 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 620 | { |
f0fba2ad LG |
621 | struct snd_soc_pcm_runtime *rtd = |
622 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
623 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
624 | |
625 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
626 | |
627 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
628 | codec_dai->driver->playback.stream_name, | |
629 | codec_dai->playback_active ? "active" : "inactive", | |
630 | codec_dai->pop_wait ? "yes" : "no"); | |
631 | ||
632 | /* are we waiting on this codec DAI stream */ | |
633 | if (codec_dai->pop_wait == 1) { | |
634 | codec_dai->pop_wait = 0; | |
635 | snd_soc_dapm_stream_event(rtd, | |
636 | codec_dai->driver->playback.stream_name, | |
637 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 638 | } |
f0fba2ad | 639 | |
db2a4165 FM |
640 | mutex_unlock(&pcm_mutex); |
641 | } | |
642 | ||
643 | /* | |
644 | * Called by ALSA when a PCM substream is closed. Private data can be | |
645 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
646 | * shutdown. | |
647 | */ | |
648 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
649 | { | |
650 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
651 | struct snd_soc_platform *platform = rtd->platform; |
652 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
653 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
654 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
655 | |
656 | mutex_lock(&pcm_mutex); | |
657 | ||
14dc5734 | 658 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
659 | cpu_dai->playback_active--; |
660 | codec_dai->playback_active--; | |
14dc5734 | 661 | } else { |
f0fba2ad LG |
662 | cpu_dai->capture_active--; |
663 | codec_dai->capture_active--; | |
db2a4165 | 664 | } |
14dc5734 JB |
665 | |
666 | cpu_dai->active--; | |
667 | codec_dai->active--; | |
db2a4165 FM |
668 | codec->active--; |
669 | ||
6010b2da MB |
670 | /* Muting the DAC suppresses artifacts caused during digital |
671 | * shutdown, for example from stopping clocks. | |
672 | */ | |
673 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
674 | snd_soc_dai_digital_mute(codec_dai, 1); | |
675 | ||
f0fba2ad LG |
676 | if (cpu_dai->driver->ops->shutdown) |
677 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 678 | |
f0fba2ad LG |
679 | if (codec_dai->driver->ops->shutdown) |
680 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 681 | |
f0fba2ad LG |
682 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
683 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 684 | |
f0fba2ad LG |
685 | if (platform->driver->ops->close) |
686 | platform->driver->ops->close(substream); | |
687 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
688 | |
689 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
690 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 691 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
692 | schedule_delayed_work(&rtd->delayed_work, |
693 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
694 | } else { |
695 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
696 | snd_soc_dapm_stream_event(rtd, |
697 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 698 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
699 | } |
700 | ||
701 | mutex_unlock(&pcm_mutex); | |
702 | return 0; | |
703 | } | |
704 | ||
705 | /* | |
706 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
707 | * rate, etc. This function is non atomic and can be called multiple times, | |
708 | * it can refer to the runtime info. | |
709 | */ | |
710 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
711 | { | |
712 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
713 | struct snd_soc_platform *platform = rtd->platform; |
714 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
715 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
716 | int ret = 0; |
717 | ||
718 | mutex_lock(&pcm_mutex); | |
cb666e5b | 719 | |
f0fba2ad LG |
720 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
721 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
722 | if (ret < 0) { |
723 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
724 | goto out; | |
725 | } | |
726 | } | |
727 | ||
f0fba2ad LG |
728 | if (platform->driver->ops->prepare) { |
729 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
730 | if (ret < 0) { |
731 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 732 | goto out; |
a71a468a | 733 | } |
db2a4165 FM |
734 | } |
735 | ||
f0fba2ad LG |
736 | if (codec_dai->driver->ops->prepare) { |
737 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
738 | if (ret < 0) { |
739 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 740 | goto out; |
a71a468a | 741 | } |
db2a4165 FM |
742 | } |
743 | ||
f0fba2ad LG |
744 | if (cpu_dai->driver->ops->prepare) { |
745 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
746 | if (ret < 0) { |
747 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
748 | goto out; | |
749 | } | |
750 | } | |
db2a4165 | 751 | |
d45f6219 MB |
752 | /* cancel any delayed stream shutdown that is pending */ |
753 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
754 | codec_dai->pop_wait) { | |
755 | codec_dai->pop_wait = 0; | |
f0fba2ad | 756 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 757 | } |
db2a4165 | 758 | |
452c5eaa | 759 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
760 | snd_soc_dapm_stream_event(rtd, |
761 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
762 | SND_SOC_DAPM_STREAM_START); |
763 | else | |
f0fba2ad LG |
764 | snd_soc_dapm_stream_event(rtd, |
765 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 766 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 767 | |
452c5eaa | 768 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
769 | |
770 | out: | |
771 | mutex_unlock(&pcm_mutex); | |
772 | return ret; | |
773 | } | |
774 | ||
775 | /* | |
776 | * Called by ALSA when the hardware params are set by application. This | |
777 | * function can also be called multiple times and can allocate buffers | |
778 | * (using snd_pcm_lib_* ). It's non-atomic. | |
779 | */ | |
780 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
781 | struct snd_pcm_hw_params *params) | |
782 | { | |
783 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
784 | struct snd_soc_platform *platform = rtd->platform; |
785 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
786 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
787 | int ret = 0; |
788 | ||
789 | mutex_lock(&pcm_mutex); | |
790 | ||
f0fba2ad LG |
791 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
792 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
793 | if (ret < 0) { |
794 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 795 | goto out; |
cb666e5b | 796 | } |
db2a4165 FM |
797 | } |
798 | ||
f0fba2ad LG |
799 | if (codec_dai->driver->ops->hw_params) { |
800 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
801 | if (ret < 0) { |
802 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
803 | codec_dai->name); |
804 | goto codec_err; | |
db2a4165 FM |
805 | } |
806 | } | |
807 | ||
f0fba2ad LG |
808 | if (cpu_dai->driver->ops->hw_params) { |
809 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 810 | if (ret < 0) { |
3ff3f64b | 811 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 812 | cpu_dai->name); |
db2a4165 FM |
813 | goto interface_err; |
814 | } | |
815 | } | |
816 | ||
f0fba2ad LG |
817 | if (platform->driver->ops->hw_params) { |
818 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 819 | if (ret < 0) { |
3ff3f64b | 820 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
821 | platform->name); |
822 | goto platform_err; | |
823 | } | |
824 | } | |
825 | ||
f0fba2ad | 826 | rtd->rate = params_rate(params); |
06f409d7 | 827 | |
db2a4165 FM |
828 | out: |
829 | mutex_unlock(&pcm_mutex); | |
830 | return ret; | |
831 | ||
db2a4165 | 832 | platform_err: |
f0fba2ad LG |
833 | if (cpu_dai->driver->ops->hw_free) |
834 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
835 | |
836 | interface_err: | |
f0fba2ad LG |
837 | if (codec_dai->driver->ops->hw_free) |
838 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
839 | |
840 | codec_err: | |
f0fba2ad LG |
841 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
842 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
843 | |
844 | mutex_unlock(&pcm_mutex); | |
845 | return ret; | |
846 | } | |
847 | ||
848 | /* | |
849 | * Free's resources allocated by hw_params, can be called multiple times | |
850 | */ | |
851 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
852 | { | |
853 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
854 | struct snd_soc_platform *platform = rtd->platform; |
855 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
856 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
857 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
858 | |
859 | mutex_lock(&pcm_mutex); | |
860 | ||
861 | /* apply codec digital mute */ | |
8c6529db LG |
862 | if (!codec->active) |
863 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
864 | |
865 | /* free any machine hw params */ | |
f0fba2ad LG |
866 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
867 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
868 | |
869 | /* free any DMA resources */ | |
f0fba2ad LG |
870 | if (platform->driver->ops->hw_free) |
871 | platform->driver->ops->hw_free(substream); | |
db2a4165 FM |
872 | |
873 | /* now free hw params for the DAI's */ | |
f0fba2ad LG |
874 | if (codec_dai->driver->ops->hw_free) |
875 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 876 | |
f0fba2ad LG |
877 | if (cpu_dai->driver->ops->hw_free) |
878 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
879 | |
880 | mutex_unlock(&pcm_mutex); | |
881 | return 0; | |
882 | } | |
883 | ||
884 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
885 | { | |
886 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
887 | struct snd_soc_platform *platform = rtd->platform; |
888 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
889 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
890 | int ret; |
891 | ||
f0fba2ad LG |
892 | if (codec_dai->driver->ops->trigger) { |
893 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
894 | if (ret < 0) |
895 | return ret; | |
896 | } | |
897 | ||
f0fba2ad LG |
898 | if (platform->driver->ops->trigger) { |
899 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
900 | if (ret < 0) |
901 | return ret; | |
902 | } | |
903 | ||
f0fba2ad LG |
904 | if (cpu_dai->driver->ops->trigger) { |
905 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
906 | if (ret < 0) |
907 | return ret; | |
908 | } | |
909 | return 0; | |
910 | } | |
911 | ||
377b6f62 PU |
912 | /* |
913 | * soc level wrapper for pointer callback | |
258020d0 PU |
914 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
915 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
916 | */ |
917 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
918 | { | |
919 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
920 | struct snd_soc_platform *platform = rtd->platform; |
921 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
922 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 923 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 924 | snd_pcm_uframes_t offset = 0; |
258020d0 | 925 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 926 | |
f0fba2ad LG |
927 | if (platform->driver->ops->pointer) |
928 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 929 | |
f0fba2ad LG |
930 | if (cpu_dai->driver->ops->delay) |
931 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 932 | |
f0fba2ad LG |
933 | if (codec_dai->driver->ops->delay) |
934 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 935 | |
f0fba2ad LG |
936 | if (platform->driver->delay) |
937 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
938 | |
939 | runtime->delay = delay; | |
940 | ||
377b6f62 PU |
941 | return offset; |
942 | } | |
943 | ||
db2a4165 FM |
944 | /* ASoC PCM operations */ |
945 | static struct snd_pcm_ops soc_pcm_ops = { | |
946 | .open = soc_pcm_open, | |
947 | .close = soc_codec_close, | |
948 | .hw_params = soc_pcm_hw_params, | |
949 | .hw_free = soc_pcm_hw_free, | |
950 | .prepare = soc_pcm_prepare, | |
951 | .trigger = soc_pcm_trigger, | |
377b6f62 | 952 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
953 | }; |
954 | ||
955 | #ifdef CONFIG_PM | |
956 | /* powers down audio subsystem for suspend */ | |
416356fc | 957 | static int soc_suspend(struct device *dev) |
db2a4165 | 958 | { |
416356fc | 959 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 960 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 FM |
961 | int i; |
962 | ||
e3509ff0 DM |
963 | /* If the initialization of this soc device failed, there is no codec |
964 | * associated with it. Just bail out in this case. | |
965 | */ | |
f0fba2ad | 966 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
967 | return 0; |
968 | ||
6ed25978 AG |
969 | /* Due to the resume being scheduled into a workqueue we could |
970 | * suspend before that's finished - wait for it to complete. | |
971 | */ | |
f0fba2ad LG |
972 | snd_power_lock(card->snd_card); |
973 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
974 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
975 | |
976 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 977 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 978 | |
db2a4165 | 979 | /* mute any active DAC's */ |
f0fba2ad LG |
980 | for (i = 0; i < card->num_rtd; i++) { |
981 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
982 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 983 | |
f0fba2ad | 984 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
985 | continue; |
986 | ||
f0fba2ad LG |
987 | if (drv->ops->digital_mute && dai->playback_active) |
988 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
989 | } |
990 | ||
4ccab3e7 | 991 | /* suspend all pcms */ |
f0fba2ad LG |
992 | for (i = 0; i < card->num_rtd; i++) { |
993 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
994 | continue; |
995 | ||
f0fba2ad | 996 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 997 | } |
4ccab3e7 | 998 | |
87506549 | 999 | if (card->suspend_pre) |
416356fc | 1000 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 1001 | |
f0fba2ad LG |
1002 | for (i = 0; i < card->num_rtd; i++) { |
1003 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1004 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1005 | |
f0fba2ad | 1006 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1007 | continue; |
1008 | ||
f0fba2ad LG |
1009 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1010 | cpu_dai->driver->suspend(cpu_dai); | |
1011 | if (platform->driver->suspend && !platform->suspended) { | |
1012 | platform->driver->suspend(cpu_dai); | |
1013 | platform->suspended = 1; | |
1014 | } | |
db2a4165 FM |
1015 | } |
1016 | ||
1017 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
1018 | for (i = 0; i < card->num_rtd; i++) { |
1019 | run_delayed_work(&card->rtd[i].delayed_work); | |
ce6120cc | 1020 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1021 | } |
db2a4165 | 1022 | |
f0fba2ad LG |
1023 | for (i = 0; i < card->num_rtd; i++) { |
1024 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1025 | |
f0fba2ad | 1026 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1027 | continue; |
1028 | ||
f0fba2ad LG |
1029 | if (driver->playback.stream_name != NULL) |
1030 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1031 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1032 | |
1033 | if (driver->capture.stream_name != NULL) | |
1034 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1035 | SND_SOC_DAPM_STREAM_SUSPEND); |
1036 | } | |
1037 | ||
f0fba2ad LG |
1038 | /* suspend all CODECs */ |
1039 | for (i = 0; i < card->num_rtd; i++) { | |
1040 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1041 | /* If there are paths active then the CODEC will be held with | |
1042 | * bias _ON and should not be suspended. */ | |
1043 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1044 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1045 | case SND_SOC_BIAS_STANDBY: |
1046 | case SND_SOC_BIAS_OFF: | |
1047 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1048 | codec->suspended = 1; | |
1049 | break; | |
1050 | default: | |
1051 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1052 | break; | |
1053 | } | |
1547aba9 MB |
1054 | } |
1055 | } | |
db2a4165 | 1056 | |
f0fba2ad LG |
1057 | for (i = 0; i < card->num_rtd; i++) { |
1058 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1059 | |
f0fba2ad | 1060 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1061 | continue; |
1062 | ||
f0fba2ad LG |
1063 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1064 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1065 | } |
1066 | ||
87506549 | 1067 | if (card->suspend_post) |
416356fc | 1068 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1069 | |
1070 | return 0; | |
1071 | } | |
1072 | ||
6ed25978 AG |
1073 | /* deferred resume work, so resume can complete before we finished |
1074 | * setting our codec back up, which can be very slow on I2C | |
1075 | */ | |
1076 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1077 | { |
f0fba2ad LG |
1078 | struct snd_soc_card *card = |
1079 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1080 | struct platform_device *pdev = to_platform_device(card->dev); | |
db2a4165 FM |
1081 | int i; |
1082 | ||
6ed25978 AG |
1083 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1084 | * so userspace apps are blocked from touching us | |
1085 | */ | |
1086 | ||
f0fba2ad | 1087 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1088 | |
9949788b | 1089 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1090 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1091 | |
87506549 MB |
1092 | if (card->resume_pre) |
1093 | card->resume_pre(pdev); | |
db2a4165 | 1094 | |
f0fba2ad LG |
1095 | /* resume AC97 DAIs */ |
1096 | for (i = 0; i < card->num_rtd; i++) { | |
1097 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1098 | |
f0fba2ad | 1099 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1100 | continue; |
1101 | ||
f0fba2ad LG |
1102 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1103 | cpu_dai->driver->resume(cpu_dai); | |
1104 | } | |
1105 | ||
1106 | for (i = 0; i < card->num_rtd; i++) { | |
1107 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1108 | /* If the CODEC was idle over suspend then it will have been | |
1109 | * left with bias OFF or STANDBY and suspended so we must now | |
1110 | * resume. Otherwise the suspend was suppressed. | |
1111 | */ | |
1112 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1113 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1114 | case SND_SOC_BIAS_STANDBY: |
1115 | case SND_SOC_BIAS_OFF: | |
1116 | codec->driver->resume(codec); | |
1117 | codec->suspended = 0; | |
1118 | break; | |
1119 | default: | |
1120 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1121 | break; | |
1122 | } | |
1547aba9 MB |
1123 | } |
1124 | } | |
db2a4165 | 1125 | |
f0fba2ad LG |
1126 | for (i = 0; i < card->num_rtd; i++) { |
1127 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1128 | |
f0fba2ad | 1129 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1130 | continue; |
1131 | ||
f0fba2ad LG |
1132 | if (driver->playback.stream_name != NULL) |
1133 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1134 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1135 | |
1136 | if (driver->capture.stream_name != NULL) | |
1137 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1138 | SND_SOC_DAPM_STREAM_RESUME); |
1139 | } | |
1140 | ||
3ff3f64b | 1141 | /* unmute any active DACs */ |
f0fba2ad LG |
1142 | for (i = 0; i < card->num_rtd; i++) { |
1143 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1144 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1145 | |
f0fba2ad | 1146 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1147 | continue; |
1148 | ||
f0fba2ad LG |
1149 | if (drv->ops->digital_mute && dai->playback_active) |
1150 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1151 | } |
1152 | ||
f0fba2ad LG |
1153 | for (i = 0; i < card->num_rtd; i++) { |
1154 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1155 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1156 | |
f0fba2ad | 1157 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1158 | continue; |
1159 | ||
f0fba2ad LG |
1160 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1161 | cpu_dai->driver->resume(cpu_dai); | |
1162 | if (platform->driver->resume && platform->suspended) { | |
1163 | platform->driver->resume(cpu_dai); | |
1164 | platform->suspended = 0; | |
1165 | } | |
db2a4165 FM |
1166 | } |
1167 | ||
87506549 MB |
1168 | if (card->resume_post) |
1169 | card->resume_post(pdev); | |
db2a4165 | 1170 | |
f0fba2ad | 1171 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1172 | |
1173 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1174 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1175 | } |
1176 | ||
1177 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1178 | static int soc_resume(struct device *dev) |
6ed25978 | 1179 | { |
416356fc | 1180 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1181 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1182 | int i; | |
b9dd94a8 | 1183 | |
64ab9baa MB |
1184 | /* AC97 devices might have other drivers hanging off them so |
1185 | * need to resume immediately. Other drivers don't have that | |
1186 | * problem and may take a substantial amount of time to resume | |
1187 | * due to I/O costs and anti-pop so handle them out of line. | |
1188 | */ | |
f0fba2ad LG |
1189 | for (i = 0; i < card->num_rtd; i++) { |
1190 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1191 | if (cpu_dai->driver->ac97_control) { | |
1192 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1193 | soc_resume_deferred(&card->deferred_resume_work); | |
1194 | } else { | |
1195 | dev_dbg(dev, "Scheduling resume work\n"); | |
1196 | if (!schedule_work(&card->deferred_resume_work)) | |
1197 | dev_err(dev, "resume work item may be lost\n"); | |
1198 | } | |
64ab9baa | 1199 | } |
6ed25978 | 1200 | |
db2a4165 FM |
1201 | return 0; |
1202 | } | |
db2a4165 FM |
1203 | #else |
1204 | #define soc_suspend NULL | |
1205 | #define soc_resume NULL | |
1206 | #endif | |
1207 | ||
02a06d30 BS |
1208 | static struct snd_soc_dai_ops null_dai_ops = { |
1209 | }; | |
1210 | ||
f0fba2ad | 1211 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1212 | { |
f0fba2ad LG |
1213 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1214 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1215 | struct snd_soc_codec *codec; |
435c5e25 | 1216 | struct snd_soc_platform *platform; |
f0fba2ad | 1217 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1218 | |
f0fba2ad LG |
1219 | if (rtd->complete) |
1220 | return 1; | |
1221 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1222 | |
f0fba2ad LG |
1223 | /* do we already have the CPU DAI for this link ? */ |
1224 | if (rtd->cpu_dai) { | |
1225 | goto find_codec; | |
1226 | } | |
1227 | /* no, then find CPU DAI from registered DAIs*/ | |
1228 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1229 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1230 | ||
1231 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1232 | return -ENODEV; | |
1233 | ||
1234 | rtd->cpu_dai = cpu_dai; | |
1235 | goto find_codec; | |
435c5e25 | 1236 | } |
435c5e25 | 1237 | } |
f0fba2ad LG |
1238 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1239 | dai_link->cpu_dai_name); | |
6308419a | 1240 | |
f0fba2ad LG |
1241 | find_codec: |
1242 | /* do we already have the CODEC for this link ? */ | |
1243 | if (rtd->codec) { | |
1244 | goto find_platform; | |
1245 | } | |
1246 | ||
1247 | /* no, then find CODEC from registered CODECs*/ | |
1248 | list_for_each_entry(codec, &codec_list, list) { | |
1249 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1250 | rtd->codec = codec; | |
1251 | ||
1252 | if (!try_module_get(codec->dev->driver->owner)) | |
1253 | return -ENODEV; | |
1254 | ||
1255 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ | |
1256 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1257 | if (codec->dev == codec_dai->dev && | |
1258 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1259 | rtd->codec_dai = codec_dai; | |
1260 | goto find_platform; | |
1261 | } | |
435c5e25 | 1262 | } |
f0fba2ad LG |
1263 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1264 | dai_link->codec_dai_name); | |
1265 | ||
1266 | goto find_platform; | |
435c5e25 | 1267 | } |
f0fba2ad LG |
1268 | } |
1269 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1270 | dai_link->codec_name); | |
6b05eda6 | 1271 | |
f0fba2ad LG |
1272 | find_platform: |
1273 | /* do we already have the CODEC DAI for this link ? */ | |
1274 | if (rtd->platform) { | |
1275 | goto out; | |
c5af3a2e | 1276 | } |
f0fba2ad LG |
1277 | /* no, then find CPU DAI from registered DAIs*/ |
1278 | list_for_each_entry(platform, &platform_list, list) { | |
1279 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
c5af3a2e | 1280 | |
f0fba2ad LG |
1281 | if (!try_module_get(platform->dev->driver->owner)) |
1282 | return -ENODEV; | |
1283 | ||
1284 | rtd->platform = platform; | |
1285 | goto out; | |
1286 | } | |
02a06d30 BS |
1287 | } |
1288 | ||
f0fba2ad LG |
1289 | dev_dbg(card->dev, "platform %s not registered\n", |
1290 | dai_link->platform_name); | |
1291 | return 0; | |
1292 | ||
1293 | out: | |
1294 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1295 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1296 | rtd->complete = 1; | |
1297 | card->num_rtd++; | |
1298 | } | |
1299 | return 1; | |
1300 | } | |
1301 | ||
1302 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1303 | { | |
1304 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1305 | struct snd_soc_codec *codec = rtd->codec; | |
1306 | struct snd_soc_platform *platform = rtd->platform; | |
1307 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1308 | int err; | |
1309 | ||
1310 | /* unregister the rtd device */ | |
1311 | if (rtd->dev_registered) { | |
1312 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1313 | device_unregister(&rtd->dev); | |
1314 | rtd->dev_registered = 0; | |
1315 | } | |
1316 | ||
1317 | /* remove the CODEC DAI */ | |
1318 | if (codec_dai && codec_dai->probed) { | |
1319 | if (codec_dai->driver->remove) { | |
1320 | err = codec_dai->driver->remove(codec_dai); | |
1321 | if (err < 0) | |
1322 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1323 | } |
f0fba2ad LG |
1324 | codec_dai->probed = 0; |
1325 | list_del(&codec_dai->card_list); | |
1326 | } | |
6b05eda6 | 1327 | |
f0fba2ad LG |
1328 | /* remove the platform */ |
1329 | if (platform && platform->probed) { | |
1330 | if (platform->driver->remove) { | |
1331 | err = platform->driver->remove(platform); | |
1332 | if (err < 0) | |
1333 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1334 | } | |
1335 | platform->probed = 0; | |
1336 | list_del(&platform->card_list); | |
1337 | module_put(platform->dev->driver->owner); | |
1338 | } | |
435c5e25 | 1339 | |
f0fba2ad LG |
1340 | /* remove the CODEC */ |
1341 | if (codec && codec->probed) { | |
1342 | if (codec->driver->remove) { | |
1343 | err = codec->driver->remove(codec); | |
1344 | if (err < 0) | |
1345 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1346 | } | |
435c5e25 | 1347 | |
f0fba2ad | 1348 | /* Make sure all DAPM widgets are freed */ |
ce6120cc | 1349 | snd_soc_dapm_free(&codec->dapm); |
96dd3622 | 1350 | |
f0fba2ad LG |
1351 | soc_cleanup_codec_debugfs(codec); |
1352 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1353 | codec->probed = 0; | |
1354 | list_del(&codec->card_list); | |
1355 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1356 | } |
1357 | ||
f0fba2ad LG |
1358 | /* remove the cpu_dai */ |
1359 | if (cpu_dai && cpu_dai->probed) { | |
1360 | if (cpu_dai->driver->remove) { | |
1361 | err = cpu_dai->driver->remove(cpu_dai); | |
1362 | if (err < 0) | |
1363 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1364 | } |
f0fba2ad LG |
1365 | cpu_dai->probed = 0; |
1366 | list_del(&cpu_dai->card_list); | |
1367 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1368 | } |
f0fba2ad | 1369 | } |
db2a4165 | 1370 | |
f0fba2ad LG |
1371 | static void rtd_release(struct device *dev) {} |
1372 | ||
1373 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1374 | { | |
1375 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1376 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1377 | struct snd_soc_codec *codec = rtd->codec; | |
1378 | struct snd_soc_platform *platform = rtd->platform; | |
1379 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1380 | int ret; | |
1381 | ||
1382 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1383 | ||
1384 | /* config components */ | |
1385 | codec_dai->codec = codec; | |
1386 | codec->card = card; | |
1387 | cpu_dai->platform = platform; | |
1388 | rtd->card = card; | |
1389 | rtd->dev.parent = card->dev; | |
1390 | codec_dai->card = card; | |
1391 | cpu_dai->card = card; | |
1392 | ||
1393 | /* set default power off timeout */ | |
1394 | rtd->pmdown_time = pmdown_time; | |
1395 | ||
1396 | /* probe the cpu_dai */ | |
1397 | if (!cpu_dai->probed) { | |
1398 | if (cpu_dai->driver->probe) { | |
1399 | ret = cpu_dai->driver->probe(cpu_dai); | |
1400 | if (ret < 0) { | |
1401 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1402 | cpu_dai->name); | |
1403 | return ret; | |
1404 | } | |
1405 | } | |
1406 | cpu_dai->probed = 1; | |
1407 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1408 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1409 | } |
1410 | ||
f0fba2ad LG |
1411 | /* probe the CODEC */ |
1412 | if (!codec->probed) { | |
1413 | if (codec->driver->probe) { | |
1414 | ret = codec->driver->probe(codec); | |
1415 | if (ret < 0) { | |
1416 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1417 | codec->name); | |
1418 | return ret; | |
1419 | } | |
1420 | } | |
13cb61f8 MB |
1421 | |
1422 | soc_init_codec_debugfs(codec); | |
1423 | ||
f0fba2ad LG |
1424 | /* mark codec as probed and add to card codec list */ |
1425 | codec->probed = 1; | |
1426 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1427 | } |
1428 | ||
f0fba2ad LG |
1429 | /* probe the platform */ |
1430 | if (!platform->probed) { | |
1431 | if (platform->driver->probe) { | |
1432 | ret = platform->driver->probe(platform); | |
1433 | if (ret < 0) { | |
1434 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1435 | platform->name); | |
1436 | return ret; | |
1437 | } | |
1438 | } | |
1439 | /* mark platform as probed and add to card platform list */ | |
1440 | platform->probed = 1; | |
1441 | list_add(&platform->card_list, &card->platform_dev_list); | |
1442 | } | |
6ed25978 | 1443 | |
f0fba2ad LG |
1444 | /* probe the CODEC DAI */ |
1445 | if (!codec_dai->probed) { | |
1446 | if (codec_dai->driver->probe) { | |
1447 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1448 | if (ret < 0) { |
f0fba2ad LG |
1449 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1450 | codec_dai->name); | |
1451 | return ret; | |
fe3e78e0 MB |
1452 | } |
1453 | } | |
f0fba2ad LG |
1454 | |
1455 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1456 | codec_dai->probed = 1; | |
1457 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1458 | } |
1459 | ||
f0fba2ad LG |
1460 | /* DAPM dai link stream work */ |
1461 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1462 | ||
1463 | /* now that all clients have probed, initialise the DAI link */ | |
1464 | if (dai_link->init) { | |
1465 | ret = dai_link->init(rtd); | |
1466 | if (ret < 0) { | |
1467 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1468 | return ret; | |
1469 | } | |
1470 | } | |
fe3e78e0 MB |
1471 | |
1472 | /* Make sure all DAPM widgets are instantiated */ | |
ce6120cc LG |
1473 | snd_soc_dapm_new_widgets(&codec->dapm); |
1474 | snd_soc_dapm_sync(&codec->dapm); | |
fe3e78e0 | 1475 | |
f0fba2ad | 1476 | /* register the rtd device */ |
f0fba2ad LG |
1477 | rtd->dev.release = rtd_release; |
1478 | rtd->dev.init_name = dai_link->name; | |
1479 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1480 | if (ret < 0) { |
f0fba2ad LG |
1481 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1482 | return ret; | |
fe3e78e0 MB |
1483 | } |
1484 | ||
f0fba2ad LG |
1485 | rtd->dev_registered = 1; |
1486 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1487 | if (ret < 0) | |
1488 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1489 | ||
1490 | /* add DAPM sysfs entries for this codec */ | |
1491 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1492 | if (ret < 0) | |
1493 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1494 | ||
1495 | /* add codec sysfs entries */ | |
1496 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1497 | if (ret < 0) | |
1498 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1499 | ||
f0fba2ad LG |
1500 | /* create the pcm */ |
1501 | ret = soc_new_pcm(rtd, num); | |
1502 | if (ret < 0) { | |
1503 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1504 | return ret; | |
1505 | } | |
1506 | ||
1507 | /* add platform data for AC97 devices */ | |
1508 | if (rtd->codec_dai->driver->ac97_control) | |
1509 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1510 | ||
1511 | return 0; | |
1512 | } | |
1513 | ||
fe3e78e0 | 1514 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1515 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1516 | { | |
1517 | int ret; | |
1518 | ||
fe3e78e0 MB |
1519 | /* Only instantiate AC97 if not already done by the adaptor |
1520 | * for the generic AC97 subsystem. | |
1521 | */ | |
f0fba2ad | 1522 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1523 | /* |
1524 | * It is possible that the AC97 device is already registered to | |
1525 | * the device subsystem. This happens when the device is created | |
1526 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1527 | * is the generic AC97 glue but others migh emerge. | |
1528 | * | |
1529 | * In those cases we don't try to register the device again. | |
1530 | */ | |
1531 | if (!rtd->codec->ac97_created) | |
1532 | return 0; | |
f0fba2ad LG |
1533 | |
1534 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1535 | if (ret < 0) { |
1536 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1537 | return ret; |
fe3e78e0 | 1538 | } |
f0fba2ad LG |
1539 | |
1540 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1541 | } |
f0fba2ad LG |
1542 | return 0; |
1543 | } | |
1544 | ||
1545 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1546 | { | |
1547 | if (codec->ac97_registered) { | |
1548 | soc_ac97_dev_unregister(codec); | |
1549 | codec->ac97_registered = 0; | |
1550 | } | |
1551 | } | |
fe3e78e0 MB |
1552 | #endif |
1553 | ||
f0fba2ad LG |
1554 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1555 | { | |
1556 | struct platform_device *pdev = to_platform_device(card->dev); | |
1557 | int ret, i; | |
fe3e78e0 | 1558 | |
f0fba2ad | 1559 | mutex_lock(&card->mutex); |
dbe21408 | 1560 | |
f0fba2ad LG |
1561 | if (card->instantiated) { |
1562 | mutex_unlock(&card->mutex); | |
1563 | return; | |
1564 | } | |
fe3e78e0 | 1565 | |
f0fba2ad LG |
1566 | /* bind DAIs */ |
1567 | for (i = 0; i < card->num_links; i++) | |
1568 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1569 | |
f0fba2ad LG |
1570 | /* bind completed ? */ |
1571 | if (card->num_rtd != card->num_links) { | |
1572 | mutex_unlock(&card->mutex); | |
1573 | return; | |
1574 | } | |
435c5e25 | 1575 | |
f0fba2ad LG |
1576 | /* card bind complete so register a sound card */ |
1577 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1578 | card->owner, 0, &card->snd_card); | |
1579 | if (ret < 0) { | |
1580 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1581 | card->name); | |
1582 | mutex_unlock(&card->mutex); | |
1583 | return; | |
1584 | } | |
1585 | card->snd_card->dev = card->dev; | |
1586 | ||
1587 | #ifdef CONFIG_PM | |
1588 | /* deferred resume work */ | |
1589 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1590 | #endif | |
db2a4165 | 1591 | |
f0fba2ad LG |
1592 | /* initialise the sound card only once */ |
1593 | if (card->probe) { | |
1594 | ret = card->probe(pdev); | |
1595 | if (ret < 0) | |
1596 | goto card_probe_error; | |
1597 | } | |
fe3e78e0 | 1598 | |
f0fba2ad LG |
1599 | for (i = 0; i < card->num_links; i++) { |
1600 | ret = soc_probe_dai_link(card, i); | |
1601 | if (ret < 0) { | |
321de0d0 MB |
1602 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1603 | card->name, ret); | |
f0fba2ad LG |
1604 | goto probe_dai_err; |
1605 | } | |
1606 | } | |
db2a4165 | 1607 | |
f0fba2ad LG |
1608 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1609 | "%s", card->name); | |
1610 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1611 | "%s", card->name); | |
1612 | ||
1613 | ret = snd_card_register(card->snd_card); | |
1614 | if (ret < 0) { | |
1615 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1616 | goto probe_dai_err; | |
db2a4165 FM |
1617 | } |
1618 | ||
f0fba2ad LG |
1619 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1620 | /* register any AC97 codecs */ | |
1621 | for (i = 0; i < card->num_rtd; i++) { | |
1622 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1623 | if (ret < 0) { | |
1624 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1625 | goto probe_dai_err; | |
1626 | } | |
1627 | } | |
1628 | #endif | |
1629 | ||
1630 | card->instantiated = 1; | |
1631 | mutex_unlock(&card->mutex); | |
1632 | return; | |
1633 | ||
1634 | probe_dai_err: | |
1635 | for (i = 0; i < card->num_links; i++) | |
1636 | soc_remove_dai_link(card, i); | |
1637 | ||
1638 | card_probe_error: | |
87506549 MB |
1639 | if (card->remove) |
1640 | card->remove(pdev); | |
f0fba2ad LG |
1641 | |
1642 | snd_card_free(card->snd_card); | |
1643 | ||
1644 | mutex_unlock(&card->mutex); | |
435c5e25 | 1645 | } |
db2a4165 | 1646 | |
435c5e25 | 1647 | /* |
421f91d2 | 1648 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1649 | * client_mutex. |
1650 | */ | |
1651 | static void snd_soc_instantiate_cards(void) | |
1652 | { | |
1653 | struct snd_soc_card *card; | |
1654 | list_for_each_entry(card, &card_list, list) | |
1655 | snd_soc_instantiate_card(card); | |
1656 | } | |
1657 | ||
1658 | /* probes a new socdev */ | |
1659 | static int soc_probe(struct platform_device *pdev) | |
1660 | { | |
f0fba2ad | 1661 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1662 | int ret = 0; |
435c5e25 MB |
1663 | |
1664 | /* Bodge while we unpick instantiation */ | |
1665 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1666 | INIT_LIST_HEAD(&card->dai_dev_list); |
1667 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1668 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1669 | ||
435c5e25 MB |
1670 | ret = snd_soc_register_card(card); |
1671 | if (ret != 0) { | |
1672 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1673 | return ret; | |
1674 | } | |
1675 | ||
1676 | return 0; | |
db2a4165 FM |
1677 | } |
1678 | ||
1679 | /* removes a socdev */ | |
1680 | static int soc_remove(struct platform_device *pdev) | |
1681 | { | |
f0fba2ad | 1682 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1683 | int i; |
db2a4165 | 1684 | |
f0fba2ad | 1685 | if (card->instantiated) { |
914dc182 | 1686 | |
f0fba2ad LG |
1687 | /* make sure any delayed work runs */ |
1688 | for (i = 0; i < card->num_rtd; i++) { | |
1689 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1690 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1691 | } |
db2a4165 | 1692 | |
f0fba2ad LG |
1693 | /* remove and free each DAI */ |
1694 | for (i = 0; i < card->num_rtd; i++) | |
1695 | soc_remove_dai_link(card, i); | |
1696 | ||
1697 | /* remove the card */ | |
b2dfa62c GL |
1698 | if (card->remove) |
1699 | card->remove(pdev); | |
db2a4165 | 1700 | |
f0fba2ad LG |
1701 | kfree(card->rtd); |
1702 | snd_card_free(card->snd_card); | |
1703 | } | |
c5af3a2e | 1704 | snd_soc_unregister_card(card); |
db2a4165 FM |
1705 | return 0; |
1706 | } | |
1707 | ||
416356fc | 1708 | static int soc_poweroff(struct device *dev) |
51737470 | 1709 | { |
416356fc | 1710 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1711 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1712 | int i; | |
51737470 MB |
1713 | |
1714 | if (!card->instantiated) | |
416356fc | 1715 | return 0; |
51737470 MB |
1716 | |
1717 | /* Flush out pmdown_time work - we actually do want to run it | |
1718 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1719 | for (i = 0; i < card->num_rtd; i++) { |
1720 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1721 | run_delayed_work(&rtd->delayed_work); | |
1722 | } | |
51737470 | 1723 | |
f0fba2ad | 1724 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1725 | |
1726 | return 0; | |
51737470 MB |
1727 | } |
1728 | ||
47145210 | 1729 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1730 | .suspend = soc_suspend, |
1731 | .resume = soc_resume, | |
1732 | .poweroff = soc_poweroff, | |
1733 | }; | |
1734 | ||
db2a4165 FM |
1735 | /* ASoC platform driver */ |
1736 | static struct platform_driver soc_driver = { | |
1737 | .driver = { | |
1738 | .name = "soc-audio", | |
8b45a209 | 1739 | .owner = THIS_MODULE, |
416356fc | 1740 | .pm = &soc_pm_ops, |
db2a4165 FM |
1741 | }, |
1742 | .probe = soc_probe, | |
1743 | .remove = soc_remove, | |
db2a4165 FM |
1744 | }; |
1745 | ||
1746 | /* create a new pcm */ | |
f0fba2ad LG |
1747 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1748 | { | |
1749 | struct snd_soc_codec *codec = rtd->codec; | |
1750 | struct snd_soc_platform *platform = rtd->platform; | |
1751 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1752 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1753 | struct snd_pcm *pcm; |
1754 | char new_name[64]; | |
1755 | int ret = 0, playback = 0, capture = 0; | |
1756 | ||
db2a4165 | 1757 | /* check client and interface hw capabilities */ |
40ca1142 | 1758 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1759 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1760 | |
f0fba2ad | 1761 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1762 | playback = 1; |
f0fba2ad | 1763 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1764 | capture = 1; |
1765 | ||
f0fba2ad LG |
1766 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1767 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1768 | num, playback, capture, &pcm); | |
db2a4165 | 1769 | if (ret < 0) { |
f0fba2ad | 1770 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1771 | return ret; |
1772 | } | |
1773 | ||
f0fba2ad | 1774 | rtd->pcm = pcm; |
db2a4165 | 1775 | pcm->private_data = rtd; |
f0fba2ad LG |
1776 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1777 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1778 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1779 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1780 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1781 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1782 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1783 | |
1784 | if (playback) | |
1785 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1786 | ||
1787 | if (capture) | |
1788 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1789 | ||
f0fba2ad | 1790 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1791 | if (ret < 0) { |
1792 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1793 | return ret; |
1794 | } | |
1795 | ||
f0fba2ad | 1796 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1797 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1798 | cpu_dai->name); | |
1799 | return ret; | |
1800 | } | |
1801 | ||
096e49d5 MB |
1802 | /** |
1803 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1804 | * | |
1805 | * @codec: CODEC to query. | |
1806 | * @reg: Register to query. | |
1807 | * | |
1808 | * Boolean function indiciating if a CODEC register is volatile. | |
1809 | */ | |
1810 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1811 | { | |
f0fba2ad LG |
1812 | if (codec->driver->volatile_register) |
1813 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
1814 | else |
1815 | return 0; | |
1816 | } | |
1817 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1818 | ||
db2a4165 FM |
1819 | /** |
1820 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1821 | * @codec: audio codec | |
1822 | * @ops: AC97 bus operations | |
1823 | * @num: AC97 codec number | |
1824 | * | |
1825 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1826 | */ | |
1827 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1828 | struct snd_ac97_bus_ops *ops, int num) | |
1829 | { | |
1830 | mutex_lock(&codec->mutex); | |
1831 | ||
1832 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1833 | if (codec->ac97 == NULL) { | |
1834 | mutex_unlock(&codec->mutex); | |
1835 | return -ENOMEM; | |
1836 | } | |
1837 | ||
1838 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1839 | if (codec->ac97->bus == NULL) { | |
1840 | kfree(codec->ac97); | |
1841 | codec->ac97 = NULL; | |
1842 | mutex_unlock(&codec->mutex); | |
1843 | return -ENOMEM; | |
1844 | } | |
1845 | ||
1846 | codec->ac97->bus->ops = ops; | |
1847 | codec->ac97->num = num; | |
0562f788 MW |
1848 | |
1849 | /* | |
1850 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1851 | * device will be registered with the device subsystem later on. | |
1852 | */ | |
1853 | codec->ac97_created = 1; | |
1854 | ||
db2a4165 FM |
1855 | mutex_unlock(&codec->mutex); |
1856 | return 0; | |
1857 | } | |
1858 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1859 | ||
1860 | /** | |
1861 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1862 | * @codec: audio codec | |
1863 | * | |
1864 | * Frees AC97 codec device resources. | |
1865 | */ | |
1866 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1867 | { | |
1868 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1869 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1870 | soc_unregister_ac97_dai_link(codec); | |
1871 | #endif | |
db2a4165 FM |
1872 | kfree(codec->ac97->bus); |
1873 | kfree(codec->ac97); | |
1874 | codec->ac97 = NULL; | |
0562f788 | 1875 | codec->ac97_created = 0; |
db2a4165 FM |
1876 | mutex_unlock(&codec->mutex); |
1877 | } | |
1878 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1879 | ||
c3753707 MB |
1880 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1881 | { | |
1882 | unsigned int ret; | |
1883 | ||
1884 | ret = codec->driver->read(codec, reg); | |
1885 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); | |
1886 | ||
1887 | return ret; | |
1888 | } | |
1889 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1890 | ||
1891 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1892 | unsigned int reg, unsigned int val) | |
1893 | { | |
1894 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
1895 | return codec->driver->write(codec, reg, val); | |
1896 | } | |
1897 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1898 | ||
db2a4165 FM |
1899 | /** |
1900 | * snd_soc_update_bits - update codec register bits | |
1901 | * @codec: audio codec | |
1902 | * @reg: codec register | |
1903 | * @mask: register mask | |
1904 | * @value: new value | |
1905 | * | |
1906 | * Writes new register value. | |
1907 | * | |
1908 | * Returns 1 for change else 0. | |
1909 | */ | |
1910 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1911 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1912 | { |
1913 | int change; | |
46f5822f | 1914 | unsigned int old, new; |
db2a4165 | 1915 | |
db2a4165 FM |
1916 | old = snd_soc_read(codec, reg); |
1917 | new = (old & ~mask) | value; | |
1918 | change = old != new; | |
1919 | if (change) | |
1920 | snd_soc_write(codec, reg, new); | |
1921 | ||
db2a4165 FM |
1922 | return change; |
1923 | } | |
1924 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1925 | ||
6c508c62 EN |
1926 | /** |
1927 | * snd_soc_update_bits_locked - update codec register bits | |
1928 | * @codec: audio codec | |
1929 | * @reg: codec register | |
1930 | * @mask: register mask | |
1931 | * @value: new value | |
1932 | * | |
1933 | * Writes new register value, and takes the codec mutex. | |
1934 | * | |
1935 | * Returns 1 for change else 0. | |
1936 | */ | |
dd1b3d53 MB |
1937 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1938 | unsigned short reg, unsigned int mask, | |
1939 | unsigned int value) | |
6c508c62 EN |
1940 | { |
1941 | int change; | |
1942 | ||
1943 | mutex_lock(&codec->mutex); | |
1944 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1945 | mutex_unlock(&codec->mutex); | |
1946 | ||
1947 | return change; | |
1948 | } | |
dd1b3d53 | 1949 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1950 | |
db2a4165 FM |
1951 | /** |
1952 | * snd_soc_test_bits - test register for change | |
1953 | * @codec: audio codec | |
1954 | * @reg: codec register | |
1955 | * @mask: register mask | |
1956 | * @value: new value | |
1957 | * | |
1958 | * Tests a register with a new value and checks if the new value is | |
1959 | * different from the old value. | |
1960 | * | |
1961 | * Returns 1 for change else 0. | |
1962 | */ | |
1963 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1964 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1965 | { |
1966 | int change; | |
46f5822f | 1967 | unsigned int old, new; |
db2a4165 | 1968 | |
db2a4165 FM |
1969 | old = snd_soc_read(codec, reg); |
1970 | new = (old & ~mask) | value; | |
1971 | change = old != new; | |
db2a4165 FM |
1972 | |
1973 | return change; | |
1974 | } | |
1975 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1976 | ||
db2a4165 FM |
1977 | /** |
1978 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1979 | * @substream: the pcm substream | |
1980 | * @hw: the hardware parameters | |
1981 | * | |
1982 | * Sets the substream runtime hardware parameters. | |
1983 | */ | |
1984 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1985 | const struct snd_pcm_hardware *hw) | |
1986 | { | |
1987 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1988 | runtime->hw.info = hw->info; | |
1989 | runtime->hw.formats = hw->formats; | |
1990 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1991 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1992 | runtime->hw.periods_min = hw->periods_min; | |
1993 | runtime->hw.periods_max = hw->periods_max; | |
1994 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1995 | runtime->hw.fifo_size = hw->fifo_size; | |
1996 | return 0; | |
1997 | } | |
1998 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1999 | ||
2000 | /** | |
2001 | * snd_soc_cnew - create new control | |
2002 | * @_template: control template | |
2003 | * @data: control private data | |
ac11a2b3 | 2004 | * @long_name: control long name |
db2a4165 FM |
2005 | * |
2006 | * Create a new mixer control from a template control. | |
2007 | * | |
2008 | * Returns 0 for success, else error. | |
2009 | */ | |
2010 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2011 | void *data, char *long_name) | |
2012 | { | |
2013 | struct snd_kcontrol_new template; | |
2014 | ||
2015 | memcpy(&template, _template, sizeof(template)); | |
2016 | if (long_name) | |
2017 | template.name = long_name; | |
db2a4165 FM |
2018 | template.index = 0; |
2019 | ||
2020 | return snd_ctl_new1(&template, data); | |
2021 | } | |
2022 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2023 | ||
3e8e1952 IM |
2024 | /** |
2025 | * snd_soc_add_controls - add an array of controls to a codec. | |
2026 | * Convienience function to add a list of controls. Many codecs were | |
2027 | * duplicating this code. | |
2028 | * | |
2029 | * @codec: codec to add controls to | |
2030 | * @controls: array of controls to add | |
2031 | * @num_controls: number of elements in the array | |
2032 | * | |
2033 | * Return 0 for success, else error. | |
2034 | */ | |
2035 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2036 | const struct snd_kcontrol_new *controls, int num_controls) | |
2037 | { | |
f0fba2ad | 2038 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2039 | int err, i; |
2040 | ||
2041 | for (i = 0; i < num_controls; i++) { | |
2042 | const struct snd_kcontrol_new *control = &controls[i]; | |
2043 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
2044 | if (err < 0) { | |
082100dc MB |
2045 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
2046 | codec->name, control->name, err); | |
3e8e1952 IM |
2047 | return err; |
2048 | } | |
2049 | } | |
2050 | ||
2051 | return 0; | |
2052 | } | |
2053 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2054 | ||
db2a4165 FM |
2055 | /** |
2056 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2057 | * @kcontrol: mixer control | |
2058 | * @uinfo: control element information | |
2059 | * | |
2060 | * Callback to provide information about a double enumerated | |
2061 | * mixer control. | |
2062 | * | |
2063 | * Returns 0 for success. | |
2064 | */ | |
2065 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2066 | struct snd_ctl_elem_info *uinfo) | |
2067 | { | |
2068 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2069 | ||
2070 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2071 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2072 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2073 | |
f8ba0b7b JS |
2074 | if (uinfo->value.enumerated.item > e->max - 1) |
2075 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2076 | strcpy(uinfo->value.enumerated.name, |
2077 | e->texts[uinfo->value.enumerated.item]); | |
2078 | return 0; | |
2079 | } | |
2080 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2081 | ||
2082 | /** | |
2083 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2084 | * @kcontrol: mixer control | |
ac11a2b3 | 2085 | * @ucontrol: control element information |
db2a4165 FM |
2086 | * |
2087 | * Callback to get the value of a double enumerated mixer. | |
2088 | * | |
2089 | * Returns 0 for success. | |
2090 | */ | |
2091 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2092 | struct snd_ctl_elem_value *ucontrol) | |
2093 | { | |
2094 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2095 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2096 | unsigned int val, bitmask; |
db2a4165 | 2097 | |
f8ba0b7b | 2098 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2099 | ; |
2100 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2101 | ucontrol->value.enumerated.item[0] |
2102 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2103 | if (e->shift_l != e->shift_r) |
2104 | ucontrol->value.enumerated.item[1] = | |
2105 | (val >> e->shift_r) & (bitmask - 1); | |
2106 | ||
2107 | return 0; | |
2108 | } | |
2109 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2110 | ||
2111 | /** | |
2112 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2113 | * @kcontrol: mixer control | |
ac11a2b3 | 2114 | * @ucontrol: control element information |
db2a4165 FM |
2115 | * |
2116 | * Callback to set the value of a double enumerated mixer. | |
2117 | * | |
2118 | * Returns 0 for success. | |
2119 | */ | |
2120 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2121 | struct snd_ctl_elem_value *ucontrol) | |
2122 | { | |
2123 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2124 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2125 | unsigned int val; |
2126 | unsigned int mask, bitmask; | |
db2a4165 | 2127 | |
f8ba0b7b | 2128 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2129 | ; |
f8ba0b7b | 2130 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2131 | return -EINVAL; |
2132 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2133 | mask = (bitmask - 1) << e->shift_l; | |
2134 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2135 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2136 | return -EINVAL; |
2137 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2138 | mask |= (bitmask - 1) << e->shift_r; | |
2139 | } | |
2140 | ||
6c508c62 | 2141 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2142 | } |
2143 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2144 | ||
2e72f8e3 PU |
2145 | /** |
2146 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2147 | * @kcontrol: mixer control | |
2148 | * @ucontrol: control element information | |
2149 | * | |
2150 | * Callback to get the value of a double semi enumerated mixer. | |
2151 | * | |
2152 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2153 | * used for handling bitfield coded enumeration for example. | |
2154 | * | |
2155 | * Returns 0 for success. | |
2156 | */ | |
2157 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2158 | struct snd_ctl_elem_value *ucontrol) | |
2159 | { | |
2160 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2161 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2162 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2163 | |
2164 | reg_val = snd_soc_read(codec, e->reg); | |
2165 | val = (reg_val >> e->shift_l) & e->mask; | |
2166 | for (mux = 0; mux < e->max; mux++) { | |
2167 | if (val == e->values[mux]) | |
2168 | break; | |
2169 | } | |
2170 | ucontrol->value.enumerated.item[0] = mux; | |
2171 | if (e->shift_l != e->shift_r) { | |
2172 | val = (reg_val >> e->shift_r) & e->mask; | |
2173 | for (mux = 0; mux < e->max; mux++) { | |
2174 | if (val == e->values[mux]) | |
2175 | break; | |
2176 | } | |
2177 | ucontrol->value.enumerated.item[1] = mux; | |
2178 | } | |
2179 | ||
2180 | return 0; | |
2181 | } | |
2182 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2183 | ||
2184 | /** | |
2185 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2186 | * @kcontrol: mixer control | |
2187 | * @ucontrol: control element information | |
2188 | * | |
2189 | * Callback to set the value of a double semi enumerated mixer. | |
2190 | * | |
2191 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2192 | * used for handling bitfield coded enumeration for example. | |
2193 | * | |
2194 | * Returns 0 for success. | |
2195 | */ | |
2196 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2197 | struct snd_ctl_elem_value *ucontrol) | |
2198 | { | |
2199 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2200 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2201 | unsigned int val; |
2202 | unsigned int mask; | |
2e72f8e3 PU |
2203 | |
2204 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2205 | return -EINVAL; | |
2206 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2207 | mask = e->mask << e->shift_l; | |
2208 | if (e->shift_l != e->shift_r) { | |
2209 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2210 | return -EINVAL; | |
2211 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2212 | mask |= e->mask << e->shift_r; | |
2213 | } | |
2214 | ||
6c508c62 | 2215 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2216 | } |
2217 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2218 | ||
db2a4165 FM |
2219 | /** |
2220 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2221 | * @kcontrol: mixer control | |
2222 | * @uinfo: control element information | |
2223 | * | |
2224 | * Callback to provide information about an external enumerated | |
2225 | * single mixer. | |
2226 | * | |
2227 | * Returns 0 for success. | |
2228 | */ | |
2229 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2230 | struct snd_ctl_elem_info *uinfo) | |
2231 | { | |
2232 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2233 | ||
2234 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2235 | uinfo->count = 1; | |
f8ba0b7b | 2236 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2237 | |
f8ba0b7b JS |
2238 | if (uinfo->value.enumerated.item > e->max - 1) |
2239 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2240 | strcpy(uinfo->value.enumerated.name, |
2241 | e->texts[uinfo->value.enumerated.item]); | |
2242 | return 0; | |
2243 | } | |
2244 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2245 | ||
2246 | /** | |
2247 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2248 | * @kcontrol: mixer control | |
2249 | * @uinfo: control element information | |
2250 | * | |
2251 | * Callback to provide information about a single external mixer control. | |
2252 | * | |
2253 | * Returns 0 for success. | |
2254 | */ | |
2255 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2256 | struct snd_ctl_elem_info *uinfo) | |
2257 | { | |
a7a4ac86 PZ |
2258 | int max = kcontrol->private_value; |
2259 | ||
fd5dfad9 | 2260 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2261 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2262 | else | |
2263 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2264 | |
db2a4165 FM |
2265 | uinfo->count = 1; |
2266 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2267 | uinfo->value.integer.max = max; |
db2a4165 FM |
2268 | return 0; |
2269 | } | |
2270 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2271 | ||
db2a4165 FM |
2272 | /** |
2273 | * snd_soc_info_volsw - single mixer info callback | |
2274 | * @kcontrol: mixer control | |
2275 | * @uinfo: control element information | |
2276 | * | |
2277 | * Callback to provide information about a single mixer control. | |
2278 | * | |
2279 | * Returns 0 for success. | |
2280 | */ | |
2281 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2282 | struct snd_ctl_elem_info *uinfo) | |
2283 | { | |
4eaa9819 JS |
2284 | struct soc_mixer_control *mc = |
2285 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2286 | int platform_max; |
762b8df7 | 2287 | unsigned int shift = mc->shift; |
815ecf8d | 2288 | unsigned int rshift = mc->rshift; |
db2a4165 | 2289 | |
d11bb4a9 PU |
2290 | if (!mc->platform_max) |
2291 | mc->platform_max = mc->max; | |
2292 | platform_max = mc->platform_max; | |
2293 | ||
2294 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2295 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2296 | else | |
2297 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2298 | ||
db2a4165 FM |
2299 | uinfo->count = shift == rshift ? 1 : 2; |
2300 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2301 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2302 | return 0; |
2303 | } | |
2304 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2305 | ||
2306 | /** | |
2307 | * snd_soc_get_volsw - single mixer get callback | |
2308 | * @kcontrol: mixer control | |
ac11a2b3 | 2309 | * @ucontrol: control element information |
db2a4165 FM |
2310 | * |
2311 | * Callback to get the value of a single mixer control. | |
2312 | * | |
2313 | * Returns 0 for success. | |
2314 | */ | |
2315 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2316 | struct snd_ctl_elem_value *ucontrol) | |
2317 | { | |
4eaa9819 JS |
2318 | struct soc_mixer_control *mc = |
2319 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2320 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2321 | unsigned int reg = mc->reg; |
2322 | unsigned int shift = mc->shift; | |
2323 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2324 | int max = mc->max; |
815ecf8d JS |
2325 | unsigned int mask = (1 << fls(max)) - 1; |
2326 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2327 | |
2328 | ucontrol->value.integer.value[0] = | |
2329 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2330 | if (shift != rshift) | |
2331 | ucontrol->value.integer.value[1] = | |
2332 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2333 | if (invert) { | |
2334 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2335 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2336 | if (shift != rshift) |
2337 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2338 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2339 | } |
2340 | ||
2341 | return 0; | |
2342 | } | |
2343 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2344 | ||
2345 | /** | |
2346 | * snd_soc_put_volsw - single mixer put callback | |
2347 | * @kcontrol: mixer control | |
ac11a2b3 | 2348 | * @ucontrol: control element information |
db2a4165 FM |
2349 | * |
2350 | * Callback to set the value of a single mixer control. | |
2351 | * | |
2352 | * Returns 0 for success. | |
2353 | */ | |
2354 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2355 | struct snd_ctl_elem_value *ucontrol) | |
2356 | { | |
4eaa9819 JS |
2357 | struct soc_mixer_control *mc = |
2358 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2359 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2360 | unsigned int reg = mc->reg; |
2361 | unsigned int shift = mc->shift; | |
2362 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2363 | int max = mc->max; |
815ecf8d JS |
2364 | unsigned int mask = (1 << fls(max)) - 1; |
2365 | unsigned int invert = mc->invert; | |
46f5822f | 2366 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2367 | |
2368 | val = (ucontrol->value.integer.value[0] & mask); | |
2369 | if (invert) | |
a7a4ac86 | 2370 | val = max - val; |
db2a4165 FM |
2371 | val_mask = mask << shift; |
2372 | val = val << shift; | |
2373 | if (shift != rshift) { | |
2374 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2375 | if (invert) | |
a7a4ac86 | 2376 | val2 = max - val2; |
db2a4165 FM |
2377 | val_mask |= mask << rshift; |
2378 | val |= val2 << rshift; | |
2379 | } | |
6c508c62 | 2380 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2381 | } |
2382 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2383 | ||
2384 | /** | |
2385 | * snd_soc_info_volsw_2r - double mixer info callback | |
2386 | * @kcontrol: mixer control | |
2387 | * @uinfo: control element information | |
2388 | * | |
2389 | * Callback to provide information about a double mixer control that | |
2390 | * spans 2 codec registers. | |
2391 | * | |
2392 | * Returns 0 for success. | |
2393 | */ | |
2394 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2395 | struct snd_ctl_elem_info *uinfo) | |
2396 | { | |
4eaa9819 JS |
2397 | struct soc_mixer_control *mc = |
2398 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2399 | int platform_max; |
a7a4ac86 | 2400 | |
d11bb4a9 PU |
2401 | if (!mc->platform_max) |
2402 | mc->platform_max = mc->max; | |
2403 | platform_max = mc->platform_max; | |
2404 | ||
2405 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2406 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2407 | else | |
2408 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2409 | |
db2a4165 FM |
2410 | uinfo->count = 2; |
2411 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2412 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2413 | return 0; |
2414 | } | |
2415 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2416 | ||
2417 | /** | |
2418 | * snd_soc_get_volsw_2r - double mixer get callback | |
2419 | * @kcontrol: mixer control | |
ac11a2b3 | 2420 | * @ucontrol: control element information |
db2a4165 FM |
2421 | * |
2422 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2423 | * | |
2424 | * Returns 0 for success. | |
2425 | */ | |
2426 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2427 | struct snd_ctl_elem_value *ucontrol) | |
2428 | { | |
4eaa9819 JS |
2429 | struct soc_mixer_control *mc = |
2430 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2431 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2432 | unsigned int reg = mc->reg; |
2433 | unsigned int reg2 = mc->rreg; | |
2434 | unsigned int shift = mc->shift; | |
4eaa9819 | 2435 | int max = mc->max; |
46f5822f | 2436 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2437 | unsigned int invert = mc->invert; |
db2a4165 FM |
2438 | |
2439 | ucontrol->value.integer.value[0] = | |
2440 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2441 | ucontrol->value.integer.value[1] = | |
2442 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2443 | if (invert) { | |
2444 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2445 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2446 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2447 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2448 | } |
2449 | ||
2450 | return 0; | |
2451 | } | |
2452 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2453 | ||
2454 | /** | |
2455 | * snd_soc_put_volsw_2r - double mixer set callback | |
2456 | * @kcontrol: mixer control | |
ac11a2b3 | 2457 | * @ucontrol: control element information |
db2a4165 FM |
2458 | * |
2459 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2460 | * | |
2461 | * Returns 0 for success. | |
2462 | */ | |
2463 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2464 | struct snd_ctl_elem_value *ucontrol) | |
2465 | { | |
4eaa9819 JS |
2466 | struct soc_mixer_control *mc = |
2467 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2468 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2469 | unsigned int reg = mc->reg; |
2470 | unsigned int reg2 = mc->rreg; | |
2471 | unsigned int shift = mc->shift; | |
4eaa9819 | 2472 | int max = mc->max; |
815ecf8d JS |
2473 | unsigned int mask = (1 << fls(max)) - 1; |
2474 | unsigned int invert = mc->invert; | |
db2a4165 | 2475 | int err; |
46f5822f | 2476 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2477 | |
2478 | val_mask = mask << shift; | |
2479 | val = (ucontrol->value.integer.value[0] & mask); | |
2480 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2481 | ||
2482 | if (invert) { | |
a7a4ac86 PZ |
2483 | val = max - val; |
2484 | val2 = max - val2; | |
db2a4165 FM |
2485 | } |
2486 | ||
2487 | val = val << shift; | |
2488 | val2 = val2 << shift; | |
2489 | ||
6c508c62 | 2490 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2491 | if (err < 0) |
db2a4165 FM |
2492 | return err; |
2493 | ||
6c508c62 | 2494 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2495 | return err; |
2496 | } | |
2497 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2498 | ||
e13ac2e9 MB |
2499 | /** |
2500 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2501 | * @kcontrol: mixer control | |
2502 | * @uinfo: control element information | |
2503 | * | |
2504 | * Callback to provide information about a signed mixer control. | |
2505 | * | |
2506 | * Returns 0 for success. | |
2507 | */ | |
2508 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2509 | struct snd_ctl_elem_info *uinfo) | |
2510 | { | |
4eaa9819 JS |
2511 | struct soc_mixer_control *mc = |
2512 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2513 | int platform_max; |
4eaa9819 | 2514 | int min = mc->min; |
e13ac2e9 | 2515 | |
d11bb4a9 PU |
2516 | if (!mc->platform_max) |
2517 | mc->platform_max = mc->max; | |
2518 | platform_max = mc->platform_max; | |
2519 | ||
e13ac2e9 MB |
2520 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2521 | uinfo->count = 2; | |
2522 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2523 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2524 | return 0; |
2525 | } | |
2526 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2527 | ||
2528 | /** | |
2529 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2530 | * @kcontrol: mixer control | |
ac11a2b3 | 2531 | * @ucontrol: control element information |
e13ac2e9 MB |
2532 | * |
2533 | * Callback to get the value of a signed mixer control. | |
2534 | * | |
2535 | * Returns 0 for success. | |
2536 | */ | |
2537 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2538 | struct snd_ctl_elem_value *ucontrol) | |
2539 | { | |
4eaa9819 JS |
2540 | struct soc_mixer_control *mc = |
2541 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2542 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2543 | unsigned int reg = mc->reg; |
4eaa9819 | 2544 | int min = mc->min; |
e13ac2e9 MB |
2545 | int val = snd_soc_read(codec, reg); |
2546 | ||
2547 | ucontrol->value.integer.value[0] = | |
2548 | ((signed char)(val & 0xff))-min; | |
2549 | ucontrol->value.integer.value[1] = | |
2550 | ((signed char)((val >> 8) & 0xff))-min; | |
2551 | return 0; | |
2552 | } | |
2553 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2554 | ||
2555 | /** | |
2556 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2557 | * @kcontrol: mixer control | |
ac11a2b3 | 2558 | * @ucontrol: control element information |
e13ac2e9 MB |
2559 | * |
2560 | * Callback to set the value of a signed mixer control. | |
2561 | * | |
2562 | * Returns 0 for success. | |
2563 | */ | |
2564 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2565 | struct snd_ctl_elem_value *ucontrol) | |
2566 | { | |
4eaa9819 JS |
2567 | struct soc_mixer_control *mc = |
2568 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2569 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2570 | unsigned int reg = mc->reg; |
4eaa9819 | 2571 | int min = mc->min; |
46f5822f | 2572 | unsigned int val; |
e13ac2e9 MB |
2573 | |
2574 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2575 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2576 | ||
6c508c62 | 2577 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2578 | } |
2579 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2580 | ||
637d3847 PU |
2581 | /** |
2582 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2583 | * | |
2584 | * @codec: where to look for the control | |
2585 | * @name: Name of the control | |
2586 | * @max: new maximum limit | |
2587 | * | |
2588 | * Return 0 for success, else error. | |
2589 | */ | |
2590 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2591 | const char *name, int max) | |
2592 | { | |
f0fba2ad | 2593 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2594 | struct snd_kcontrol *kctl; |
2595 | struct soc_mixer_control *mc; | |
2596 | int found = 0; | |
2597 | int ret = -EINVAL; | |
2598 | ||
2599 | /* Sanity check for name and max */ | |
2600 | if (unlikely(!name || max <= 0)) | |
2601 | return -EINVAL; | |
2602 | ||
2603 | list_for_each_entry(kctl, &card->controls, list) { | |
2604 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2605 | found = 1; | |
2606 | break; | |
2607 | } | |
2608 | } | |
2609 | if (found) { | |
2610 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2611 | if (max <= mc->max) { | |
d11bb4a9 | 2612 | mc->platform_max = max; |
637d3847 PU |
2613 | ret = 0; |
2614 | } | |
2615 | } | |
2616 | return ret; | |
2617 | } | |
2618 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2619 | ||
b6f4bb38 | 2620 | /** |
2621 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2622 | * mixer info callback | |
2623 | * @kcontrol: mixer control | |
2624 | * @uinfo: control element information | |
2625 | * | |
2626 | * Returns 0 for success. | |
2627 | */ | |
2628 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2629 | struct snd_ctl_elem_info *uinfo) | |
2630 | { | |
2631 | struct soc_mixer_control *mc = | |
2632 | (struct soc_mixer_control *)kcontrol->private_value; | |
2633 | int max = mc->max; | |
2634 | int min = mc->min; | |
2635 | ||
2636 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2637 | uinfo->count = 2; | |
2638 | uinfo->value.integer.min = 0; | |
2639 | uinfo->value.integer.max = max-min; | |
2640 | ||
2641 | return 0; | |
2642 | } | |
2643 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2644 | ||
2645 | /** | |
2646 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2647 | * mixer get callback | |
2648 | * @kcontrol: mixer control | |
2649 | * @uinfo: control element information | |
2650 | * | |
2651 | * Returns 0 for success. | |
2652 | */ | |
2653 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2654 | struct snd_ctl_elem_value *ucontrol) | |
2655 | { | |
2656 | struct soc_mixer_control *mc = | |
2657 | (struct soc_mixer_control *)kcontrol->private_value; | |
2658 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2659 | unsigned int mask = (1<<mc->shift)-1; | |
2660 | int min = mc->min; | |
2661 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2662 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2663 | ||
20630c7f SL |
2664 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2665 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2666 | return 0; |
2667 | } | |
2668 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2669 | ||
2670 | /** | |
2671 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2672 | * mixer put callback | |
2673 | * @kcontrol: mixer control | |
2674 | * @uinfo: control element information | |
2675 | * | |
2676 | * Returns 0 for success. | |
2677 | */ | |
2678 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2679 | struct snd_ctl_elem_value *ucontrol) | |
2680 | { | |
2681 | struct soc_mixer_control *mc = | |
2682 | (struct soc_mixer_control *)kcontrol->private_value; | |
2683 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2684 | unsigned int mask = (1<<mc->shift)-1; | |
2685 | int min = mc->min; | |
2686 | int ret; | |
2687 | unsigned int val, valr, oval, ovalr; | |
2688 | ||
2689 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2690 | val &= mask; | |
2691 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2692 | valr &= mask; | |
2693 | ||
2694 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2695 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2696 | ||
2697 | ret = 0; | |
2698 | if (oval != val) { | |
2699 | ret = snd_soc_write(codec, mc->reg, val); | |
2700 | if (ret < 0) | |
f1df5aec | 2701 | return ret; |
b6f4bb38 | 2702 | } |
2703 | if (ovalr != valr) { | |
2704 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2705 | if (ret < 0) | |
f1df5aec | 2706 | return ret; |
b6f4bb38 | 2707 | } |
2708 | ||
2709 | return 0; | |
2710 | } | |
2711 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2712 | ||
8c6529db LG |
2713 | /** |
2714 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2715 | * @dai: DAI | |
2716 | * @clk_id: DAI specific clock ID | |
2717 | * @freq: new clock frequency in Hz | |
2718 | * @dir: new clock direction - input/output. | |
2719 | * | |
2720 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2721 | */ | |
2722 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2723 | unsigned int freq, int dir) | |
2724 | { | |
f0fba2ad LG |
2725 | if (dai->driver && dai->driver->ops->set_sysclk) |
2726 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2727 | else |
2728 | return -EINVAL; | |
2729 | } | |
2730 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2731 | ||
2732 | /** | |
2733 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2734 | * @dai: DAI | |
ac11a2b3 | 2735 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2736 | * @div: new clock divisor. |
2737 | * | |
2738 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2739 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2740 | * and frame clocks as low as possible to save system power. | |
2741 | */ | |
2742 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2743 | int div_id, int div) | |
2744 | { | |
f0fba2ad LG |
2745 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2746 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2747 | else |
2748 | return -EINVAL; | |
2749 | } | |
2750 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2751 | ||
2752 | /** | |
2753 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2754 | * @dai: DAI | |
2755 | * @pll_id: DAI specific PLL ID | |
85488037 | 2756 | * @source: DAI specific source for the PLL |
8c6529db LG |
2757 | * @freq_in: PLL input clock frequency in Hz |
2758 | * @freq_out: requested PLL output clock frequency in Hz | |
2759 | * | |
2760 | * Configures and enables PLL to generate output clock based on input clock. | |
2761 | */ | |
85488037 MB |
2762 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2763 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2764 | { |
f0fba2ad LG |
2765 | if (dai->driver && dai->driver->ops->set_pll) |
2766 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2767 | freq_in, freq_out); |
8c6529db LG |
2768 | else |
2769 | return -EINVAL; | |
2770 | } | |
2771 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2772 | ||
2773 | /** | |
2774 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2775 | * @dai: DAI | |
8c6529db LG |
2776 | * @fmt: SND_SOC_DAIFMT_ format value. |
2777 | * | |
2778 | * Configures the DAI hardware format and clocking. | |
2779 | */ | |
2780 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2781 | { | |
f0fba2ad LG |
2782 | if (dai->driver && dai->driver->ops->set_fmt) |
2783 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2784 | else |
2785 | return -EINVAL; | |
2786 | } | |
2787 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2788 | ||
2789 | /** | |
2790 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2791 | * @dai: DAI | |
a5479e38 DR |
2792 | * @tx_mask: bitmask representing active TX slots. |
2793 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2794 | * @slots: Number of slots in use. |
a5479e38 | 2795 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2796 | * |
2797 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2798 | * specific. | |
2799 | */ | |
2800 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2801 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2802 | { |
f0fba2ad LG |
2803 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2804 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2805 | slots, slot_width); |
8c6529db LG |
2806 | else |
2807 | return -EINVAL; | |
2808 | } | |
2809 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2810 | ||
472df3cb BS |
2811 | /** |
2812 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2813 | * @dai: DAI | |
2814 | * @tx_num: how many TX channels | |
2815 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2816 | * 0~num-1 uses | |
2817 | * @rx_num: how many RX channels | |
2818 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2819 | * 0~num-1 uses | |
2820 | * | |
2821 | * configure the relationship between channel number and TDM slot number. | |
2822 | */ | |
2823 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2824 | unsigned int tx_num, unsigned int *tx_slot, | |
2825 | unsigned int rx_num, unsigned int *rx_slot) | |
2826 | { | |
f0fba2ad LG |
2827 | if (dai->driver && dai->driver->ops->set_channel_map) |
2828 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2829 | rx_num, rx_slot); |
2830 | else | |
2831 | return -EINVAL; | |
2832 | } | |
2833 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2834 | ||
8c6529db LG |
2835 | /** |
2836 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2837 | * @dai: DAI | |
2838 | * @tristate: tristate enable | |
2839 | * | |
2840 | * Tristates the DAI so that others can use it. | |
2841 | */ | |
2842 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2843 | { | |
f0fba2ad LG |
2844 | if (dai->driver && dai->driver->ops->set_tristate) |
2845 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2846 | else |
2847 | return -EINVAL; | |
2848 | } | |
2849 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2850 | ||
2851 | /** | |
2852 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2853 | * @dai: DAI | |
2854 | * @mute: mute enable | |
2855 | * | |
2856 | * Mutes the DAI DAC. | |
2857 | */ | |
2858 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2859 | { | |
f0fba2ad LG |
2860 | if (dai->driver && dai->driver->ops->digital_mute) |
2861 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2862 | else |
2863 | return -EINVAL; | |
2864 | } | |
2865 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2866 | ||
c5af3a2e MB |
2867 | /** |
2868 | * snd_soc_register_card - Register a card with the ASoC core | |
2869 | * | |
ac11a2b3 | 2870 | * @card: Card to register |
c5af3a2e MB |
2871 | * |
2872 | * Note that currently this is an internal only function: it will be | |
2873 | * exposed to machine drivers after further backporting of ASoC v2 | |
2874 | * registration APIs. | |
2875 | */ | |
2876 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2877 | { | |
f0fba2ad LG |
2878 | int i; |
2879 | ||
c5af3a2e MB |
2880 | if (!card->name || !card->dev) |
2881 | return -EINVAL; | |
2882 | ||
f0fba2ad LG |
2883 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links, |
2884 | GFP_KERNEL); | |
2885 | if (card->rtd == NULL) | |
2886 | return -ENOMEM; | |
2887 | ||
2888 | for (i = 0; i < card->num_links; i++) | |
2889 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2890 | ||
c5af3a2e MB |
2891 | INIT_LIST_HEAD(&card->list); |
2892 | card->instantiated = 0; | |
f0fba2ad | 2893 | mutex_init(&card->mutex); |
c5af3a2e MB |
2894 | |
2895 | mutex_lock(&client_mutex); | |
2896 | list_add(&card->list, &card_list); | |
435c5e25 | 2897 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2898 | mutex_unlock(&client_mutex); |
2899 | ||
2900 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2901 | ||
2902 | return 0; | |
2903 | } | |
2904 | ||
2905 | /** | |
2906 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2907 | * | |
ac11a2b3 | 2908 | * @card: Card to unregister |
c5af3a2e MB |
2909 | * |
2910 | * Note that currently this is an internal only function: it will be | |
2911 | * exposed to machine drivers after further backporting of ASoC v2 | |
2912 | * registration APIs. | |
2913 | */ | |
2914 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2915 | { | |
2916 | mutex_lock(&client_mutex); | |
2917 | list_del(&card->list); | |
2918 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2919 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2920 | ||
2921 | return 0; | |
2922 | } | |
2923 | ||
f0fba2ad LG |
2924 | /* |
2925 | * Simplify DAI link configuration by removing ".-1" from device names | |
2926 | * and sanitizing names. | |
2927 | */ | |
2928 | static inline char *fmt_single_name(struct device *dev, int *id) | |
2929 | { | |
2930 | char *found, name[NAME_SIZE]; | |
2931 | int id1, id2; | |
2932 | ||
2933 | if (dev_name(dev) == NULL) | |
2934 | return NULL; | |
2935 | ||
2936 | strncpy(name, dev_name(dev), NAME_SIZE); | |
2937 | ||
2938 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2939 | found = strstr(name, dev->driver->name); | |
2940 | if (found) { | |
2941 | /* get ID */ | |
2942 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2943 | ||
2944 | /* discard ID from name if ID == -1 */ | |
2945 | if (*id == -1) | |
2946 | found[strlen(dev->driver->name)] = '\0'; | |
2947 | } | |
2948 | ||
2949 | } else { | |
2950 | /* I2C component devices are named "bus-addr" */ | |
2951 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2952 | char tmp[NAME_SIZE]; | |
2953 | ||
2954 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2955 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2956 | |
2957 | /* sanitize component name for DAI link creation */ | |
2958 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
2959 | strncpy(name, tmp, NAME_SIZE); | |
2960 | } else | |
2961 | *id = 0; | |
2962 | } | |
2963 | ||
2964 | return kstrdup(name, GFP_KERNEL); | |
2965 | } | |
2966 | ||
2967 | /* | |
2968 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2969 | * any ".-1" and using the DAI name (instead of device name). | |
2970 | */ | |
2971 | static inline char *fmt_multiple_name(struct device *dev, | |
2972 | struct snd_soc_dai_driver *dai_drv) | |
2973 | { | |
2974 | if (dai_drv->name == NULL) { | |
2975 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2976 | dev_name(dev)); | |
2977 | return NULL; | |
2978 | } | |
2979 | ||
2980 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2981 | } | |
2982 | ||
9115171a MB |
2983 | /** |
2984 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2985 | * | |
ac11a2b3 | 2986 | * @dai: DAI to register |
9115171a | 2987 | */ |
f0fba2ad LG |
2988 | int snd_soc_register_dai(struct device *dev, |
2989 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2990 | { |
f0fba2ad LG |
2991 | struct snd_soc_dai *dai; |
2992 | ||
2993 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2994 | |
f0fba2ad LG |
2995 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2996 | if (dai == NULL) | |
2997 | return -ENOMEM; | |
9115171a | 2998 | |
f0fba2ad LG |
2999 | /* create DAI component name */ |
3000 | dai->name = fmt_single_name(dev, &dai->id); | |
3001 | if (dai->name == NULL) { | |
3002 | kfree(dai); | |
3003 | return -ENOMEM; | |
3004 | } | |
6335d055 | 3005 | |
f0fba2ad LG |
3006 | dai->dev = dev; |
3007 | dai->driver = dai_drv; | |
3008 | if (!dai->driver->ops) | |
3009 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3010 | |
3011 | mutex_lock(&client_mutex); | |
3012 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3013 | snd_soc_instantiate_cards(); |
9115171a MB |
3014 | mutex_unlock(&client_mutex); |
3015 | ||
3016 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3017 | ||
3018 | return 0; | |
3019 | } | |
3020 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3021 | ||
3022 | /** | |
3023 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3024 | * | |
ac11a2b3 | 3025 | * @dai: DAI to unregister |
9115171a | 3026 | */ |
f0fba2ad | 3027 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3028 | { |
f0fba2ad LG |
3029 | struct snd_soc_dai *dai; |
3030 | ||
3031 | list_for_each_entry(dai, &dai_list, list) { | |
3032 | if (dev == dai->dev) | |
3033 | goto found; | |
3034 | } | |
3035 | return; | |
3036 | ||
3037 | found: | |
9115171a MB |
3038 | mutex_lock(&client_mutex); |
3039 | list_del(&dai->list); | |
3040 | mutex_unlock(&client_mutex); | |
3041 | ||
3042 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3043 | kfree(dai->name); |
3044 | kfree(dai); | |
9115171a MB |
3045 | } |
3046 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3047 | ||
3048 | /** | |
3049 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3050 | * | |
ac11a2b3 MB |
3051 | * @dai: Array of DAIs to register |
3052 | * @count: Number of DAIs | |
9115171a | 3053 | */ |
f0fba2ad LG |
3054 | int snd_soc_register_dais(struct device *dev, |
3055 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3056 | { |
f0fba2ad LG |
3057 | struct snd_soc_dai *dai; |
3058 | int i, ret = 0; | |
3059 | ||
720ffa4c | 3060 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3061 | |
3062 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3063 | |
3064 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3065 | if (dai == NULL) { |
3066 | ret = -ENOMEM; | |
3067 | goto err; | |
3068 | } | |
f0fba2ad LG |
3069 | |
3070 | /* create DAI component name */ | |
3071 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3072 | if (dai->name == NULL) { | |
3073 | kfree(dai); | |
3074 | ret = -EINVAL; | |
9115171a | 3075 | goto err; |
f0fba2ad LG |
3076 | } |
3077 | ||
3078 | dai->dev = dev; | |
f0fba2ad | 3079 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3080 | if (dai->driver->id) |
3081 | dai->id = dai->driver->id; | |
3082 | else | |
3083 | dai->id = i; | |
f0fba2ad LG |
3084 | if (!dai->driver->ops) |
3085 | dai->driver->ops = &null_dai_ops; | |
3086 | ||
3087 | mutex_lock(&client_mutex); | |
3088 | list_add(&dai->list, &dai_list); | |
3089 | mutex_unlock(&client_mutex); | |
3090 | ||
3091 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3092 | } |
3093 | ||
f0fba2ad | 3094 | snd_soc_instantiate_cards(); |
9115171a MB |
3095 | return 0; |
3096 | ||
3097 | err: | |
3098 | for (i--; i >= 0; i--) | |
f0fba2ad | 3099 | snd_soc_unregister_dai(dev); |
9115171a MB |
3100 | |
3101 | return ret; | |
3102 | } | |
3103 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3104 | ||
3105 | /** | |
3106 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3107 | * | |
ac11a2b3 MB |
3108 | * @dai: Array of DAIs to unregister |
3109 | * @count: Number of DAIs | |
9115171a | 3110 | */ |
f0fba2ad | 3111 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3112 | { |
3113 | int i; | |
3114 | ||
3115 | for (i = 0; i < count; i++) | |
f0fba2ad | 3116 | snd_soc_unregister_dai(dev); |
9115171a MB |
3117 | } |
3118 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3119 | ||
12a48a8c MB |
3120 | /** |
3121 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3122 | * | |
ac11a2b3 | 3123 | * @platform: platform to register |
12a48a8c | 3124 | */ |
f0fba2ad LG |
3125 | int snd_soc_register_platform(struct device *dev, |
3126 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3127 | { |
f0fba2ad LG |
3128 | struct snd_soc_platform *platform; |
3129 | ||
3130 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3131 | ||
3132 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3133 | if (platform == NULL) | |
3134 | return -ENOMEM; | |
3135 | ||
3136 | /* create platform component name */ | |
3137 | platform->name = fmt_single_name(dev, &platform->id); | |
3138 | if (platform->name == NULL) { | |
3139 | kfree(platform); | |
3140 | return -ENOMEM; | |
3141 | } | |
12a48a8c | 3142 | |
f0fba2ad LG |
3143 | platform->dev = dev; |
3144 | platform->driver = platform_drv; | |
12a48a8c MB |
3145 | |
3146 | mutex_lock(&client_mutex); | |
3147 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3148 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3149 | mutex_unlock(&client_mutex); |
3150 | ||
3151 | pr_debug("Registered platform '%s'\n", platform->name); | |
3152 | ||
3153 | return 0; | |
3154 | } | |
3155 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3156 | ||
3157 | /** | |
3158 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3159 | * | |
ac11a2b3 | 3160 | * @platform: platform to unregister |
12a48a8c | 3161 | */ |
f0fba2ad | 3162 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3163 | { |
f0fba2ad LG |
3164 | struct snd_soc_platform *platform; |
3165 | ||
3166 | list_for_each_entry(platform, &platform_list, list) { | |
3167 | if (dev == platform->dev) | |
3168 | goto found; | |
3169 | } | |
3170 | return; | |
3171 | ||
3172 | found: | |
12a48a8c MB |
3173 | mutex_lock(&client_mutex); |
3174 | list_del(&platform->list); | |
3175 | mutex_unlock(&client_mutex); | |
3176 | ||
3177 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3178 | kfree(platform->name); |
3179 | kfree(platform); | |
12a48a8c MB |
3180 | } |
3181 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3182 | ||
151ab22c MB |
3183 | static u64 codec_format_map[] = { |
3184 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3185 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3186 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3187 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3188 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3189 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3190 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3191 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3192 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3193 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3194 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3195 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3196 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3197 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3198 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3199 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3200 | }; | |
3201 | ||
3202 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3203 | * the endianness of the data but we're using the CPU format | |
3204 | * definitions which do need to include endianness so we ensure that | |
3205 | * codec DAIs always have both big and little endian variants set. | |
3206 | */ | |
3207 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3208 | { | |
3209 | int i; | |
3210 | ||
3211 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3212 | if (stream->formats & codec_format_map[i]) | |
3213 | stream->formats |= codec_format_map[i]; | |
3214 | } | |
3215 | ||
0d0cf00a MB |
3216 | /** |
3217 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3218 | * | |
ac11a2b3 | 3219 | * @codec: codec to register |
0d0cf00a | 3220 | */ |
f0fba2ad LG |
3221 | int snd_soc_register_codec(struct device *dev, |
3222 | struct snd_soc_codec_driver *codec_drv, | |
3223 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3224 | { |
f0fba2ad LG |
3225 | struct snd_soc_codec *codec; |
3226 | int ret, i; | |
151ab22c | 3227 | |
f0fba2ad LG |
3228 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3229 | ||
3230 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3231 | if (codec == NULL) | |
3232 | return -ENOMEM; | |
0d0cf00a | 3233 | |
f0fba2ad LG |
3234 | /* create CODEC component name */ |
3235 | codec->name = fmt_single_name(dev, &codec->id); | |
3236 | if (codec->name == NULL) { | |
3237 | kfree(codec); | |
3238 | return -ENOMEM; | |
3239 | } | |
3240 | ||
ce6120cc LG |
3241 | INIT_LIST_HEAD(&codec->dapm.widgets); |
3242 | INIT_LIST_HEAD(&codec->dapm.paths); | |
3243 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; | |
3244 | codec->dapm.dev = dev; | |
3245 | codec->dapm.codec = codec; | |
3246 | ||
f0fba2ad LG |
3247 | /* allocate CODEC register cache */ |
3248 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
0d0cf00a | 3249 | |
f0fba2ad LG |
3250 | if (codec_drv->reg_cache_default) |
3251 | codec->reg_cache = kmemdup(codec_drv->reg_cache_default, | |
3252 | codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL); | |
3253 | else | |
3254 | codec->reg_cache = kzalloc(codec_drv->reg_cache_size * | |
3255 | codec_drv->reg_word_size, GFP_KERNEL); | |
0d0cf00a | 3256 | |
f0fba2ad LG |
3257 | if (codec->reg_cache == NULL) { |
3258 | kfree(codec->name); | |
3259 | kfree(codec); | |
3260 | return -ENOMEM; | |
3261 | } | |
151ab22c MB |
3262 | } |
3263 | ||
f0fba2ad LG |
3264 | codec->dev = dev; |
3265 | codec->driver = codec_drv; | |
f0fba2ad LG |
3266 | codec->num_dai = num_dai; |
3267 | mutex_init(&codec->mutex); | |
f0fba2ad LG |
3268 | |
3269 | for (i = 0; i < num_dai; i++) { | |
3270 | fixup_codec_formats(&dai_drv[i].playback); | |
3271 | fixup_codec_formats(&dai_drv[i].capture); | |
3272 | } | |
3273 | ||
26b01ccd MB |
3274 | /* register any DAIs */ |
3275 | if (num_dai) { | |
3276 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3277 | if (ret < 0) | |
f0fba2ad | 3278 | goto error; |
26b01ccd | 3279 | } |
f0fba2ad | 3280 | |
0d0cf00a MB |
3281 | mutex_lock(&client_mutex); |
3282 | list_add(&codec->list, &codec_list); | |
3283 | snd_soc_instantiate_cards(); | |
3284 | mutex_unlock(&client_mutex); | |
3285 | ||
3286 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3287 | return 0; |
f0fba2ad LG |
3288 | |
3289 | error: | |
f0fba2ad LG |
3290 | if (codec->reg_cache) |
3291 | kfree(codec->reg_cache); | |
3292 | kfree(codec->name); | |
3293 | kfree(codec); | |
3294 | return ret; | |
0d0cf00a MB |
3295 | } |
3296 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3297 | ||
3298 | /** | |
3299 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3300 | * | |
ac11a2b3 | 3301 | * @codec: codec to unregister |
0d0cf00a | 3302 | */ |
f0fba2ad | 3303 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3304 | { |
f0fba2ad LG |
3305 | struct snd_soc_codec *codec; |
3306 | int i; | |
3307 | ||
3308 | list_for_each_entry(codec, &codec_list, list) { | |
3309 | if (dev == codec->dev) | |
3310 | goto found; | |
3311 | } | |
3312 | return; | |
3313 | ||
3314 | found: | |
26b01ccd MB |
3315 | if (codec->num_dai) |
3316 | for (i = 0; i < codec->num_dai; i++) | |
3317 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3318 | |
0d0cf00a MB |
3319 | mutex_lock(&client_mutex); |
3320 | list_del(&codec->list); | |
3321 | mutex_unlock(&client_mutex); | |
3322 | ||
3323 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad LG |
3324 | |
3325 | if (codec->reg_cache) | |
3326 | kfree(codec->reg_cache); | |
1aafcd4d | 3327 | kfree(codec->name); |
f0fba2ad | 3328 | kfree(codec); |
0d0cf00a MB |
3329 | } |
3330 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3331 | ||
c9b3a40f | 3332 | static int __init snd_soc_init(void) |
db2a4165 | 3333 | { |
384c89e2 MB |
3334 | #ifdef CONFIG_DEBUG_FS |
3335 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3336 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3337 | printk(KERN_WARNING | |
3338 | "ASoC: Failed to create debugfs directory\n"); | |
3339 | debugfs_root = NULL; | |
3340 | } | |
c3c5a19a MB |
3341 | |
3342 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3343 | &codec_list_fops)) | |
3344 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3345 | ||
f3208780 MB |
3346 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3347 | &dai_list_fops)) | |
3348 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3349 | |
3350 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3351 | &platform_list_fops)) | |
3352 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3353 | #endif |
3354 | ||
db2a4165 FM |
3355 | return platform_driver_register(&soc_driver); |
3356 | } | |
4abe8e16 | 3357 | module_init(snd_soc_init); |
db2a4165 | 3358 | |
7d8c16a6 | 3359 | static void __exit snd_soc_exit(void) |
db2a4165 | 3360 | { |
384c89e2 MB |
3361 | #ifdef CONFIG_DEBUG_FS |
3362 | debugfs_remove_recursive(debugfs_root); | |
3363 | #endif | |
3ff3f64b | 3364 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3365 | } |
db2a4165 FM |
3366 | module_exit(snd_soc_exit); |
3367 | ||
3368 | /* Module information */ | |
d331124d | 3369 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3370 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3371 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3372 | MODULE_ALIAS("platform:soc-audio"); |