projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ARM: OMAP: Remove unused old gpio-switch.h
[deliverable/linux.git] / sound / soc / soc-core.c
CommitLineData
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>
f0e8ed85 33#include <linux/ctype.h>
5a0e3ad6 34#include <linux/slab.h>
bec4fa05 35#include <linux/of.h>
474828a4 36#include <sound/ac97_codec.h>
db2a4165 37#include <sound/core.h>
3028eb8c 38#include <sound/jack.h>
db2a4165
FM		 39#include <sound/pcm.h>
40#include <sound/pcm_params.h>
41#include <sound/soc.h>
01d7584c 42#include <sound/soc-dpcm.h>
db2a4165
FM		 43#include <sound/initval.h>
44
a8b1d34f
MB		 45#define CREATE_TRACE_POINTS
46#include <trace/events/asoc.h>
47
f0fba2ad
LG		 48#define NAME_SIZE 32
49
db2a4165
FM		 50static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq);
51
384c89e2 52#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 53struct dentry *snd_soc_debugfs_root;
54EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
384c89e2
MB		 55#endif
56
c5af3a2e 57static DEFINE_MUTEX(client_mutex);
9115171a 58static LIST_HEAD(dai_list);
12a48a8c 59static LIST_HEAD(platform_list);
0d0cf00a 60static LIST_HEAD(codec_list);
c5af3a2e 61
db2a4165
FM		 62/*
63 * This is a timeout to do a DAPM powerdown after a stream is closed().
64 * It can be used to eliminate pops between different playback streams, e.g.
65 * between two audio tracks.
66 */
67static int pmdown_time = 5000;
68module_param(pmdown_time, int, 0);
69MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
70
2bc9a81e
DP		 71/* returns the minimum number of bytes needed to represent
72 * a particular given value */
73static int min_bytes_needed(unsigned long val)
74{
75 int c = 0;
76 int i;
77
78 for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c)
79 if (val & (1UL << i))
80 break;
81 c = (sizeof val * 8) - c;
82 if (!c || (c % 8))
83 c = (c + 8) / 8;
84 else
85 c /= 8;
86 return c;
87}
88
13fd179f
DP		 89/* fill buf which is 'len' bytes with a formatted
90 * string of the form 'reg: value\n' */
91static int format_register_str(struct snd_soc_codec *codec,
92 unsigned int reg, char *buf, size_t len)
93{
00b317a4
SW		 94 int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
95 int regsize = codec->driver->reg_word_size * 2;
13fd179f
DP		 96 int ret;
97 char tmpbuf[len + 1];
98 char regbuf[regsize + 1];
99
100 /* since tmpbuf is allocated on the stack, warn the callers if they
101 * try to abuse this function */
102 WARN_ON(len > 63);
103
104 /* +2 for ': ' and + 1 for '\n' */
105 if (wordsize + regsize + 2 + 1 != len)
106 return -EINVAL;
107
25032c11 108 ret = snd_soc_read(codec, reg);
13fd179f
DP		 109 if (ret < 0) {
110 memset(regbuf, 'X', regsize);
111 regbuf[regsize] = '\0';
112 } else {
113 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
114 }
115
116 /* prepare the buffer */
117 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
118 /* copy it back to the caller without the '\0' */
119 memcpy(buf, tmpbuf, len);
120
121 return 0;
122}
123
2624d5fa 124/* codec register dump */
13fd179f
DP		 125static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
126 size_t count, loff_t pos)
2624d5fa 127{
13fd179f 128 int i, step = 1;
2bc9a81e 129 int wordsize, regsize;
13fd179f
DP		 130 int len;
131 size_t total = 0;
132 loff_t p = 0;
2bc9a81e 133
00b317a4
SW		 134 wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
135 regsize = codec->driver->reg_word_size * 2;
2624d5fa 136
13fd179f
DP		 137 len = wordsize + regsize + 2 + 1;
138
f0fba2ad 139 if (!codec->driver->reg_cache_size)
2624d5fa
MB		 140 return 0;
141
f0fba2ad
LG		 142 if (codec->driver->reg_cache_step)
143 step = codec->driver->reg_cache_step;
2624d5fa 144
f0fba2ad 145 for (i = 0; i < codec->driver->reg_cache_size; i += step) {
b92d150b 146 if (!snd_soc_codec_readable_register(codec, i))
2624d5fa 147 continue;
f0fba2ad
LG		 148 if (codec->driver->display_register) {
149 count += codec->driver->display_register(codec, buf + count,
2624d5fa 150 PAGE_SIZE - count, i);
5164d74d 151 } else {
13fd179f
DP		 152 /* only support larger than PAGE_SIZE bytes debugfs
153 * entries for the default case */
154 if (p >= pos) {
155 if (total + len >= count - 1)
156 break;
157 format_register_str(codec, i, buf + total, len);
158 total += len;
159 }
160 p += len;
5164d74d 161 }
2624d5fa
MB		 162 }
163
13fd179f 164 total = min(total, count - 1);
2624d5fa 165
13fd179f 166 return total;
2624d5fa 167}
13fd179f 168
2624d5fa
MB		 169static ssize_t codec_reg_show(struct device *dev,
170 struct device_attribute *attr, char *buf)
171{
36ae1a96 172 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
f0fba2ad 173
13fd179f 174 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
2624d5fa
MB		 175}
176
177static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
178
dbe21408
MB		 179static ssize_t pmdown_time_show(struct device *dev,
180 struct device_attribute *attr, char *buf)
181{
36ae1a96 182 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
dbe21408 183
f0fba2ad 184 return sprintf(buf, "%ld\n", rtd->pmdown_time);
dbe21408
MB		 185}
186
187static ssize_t pmdown_time_set(struct device *dev,
188 struct device_attribute *attr,
189 const char *buf, size_t count)
190{
36ae1a96 191 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
c593b520 192 int ret;
dbe21408 193
c593b520
MB		 194 ret = strict_strtol(buf, 10, &rtd->pmdown_time);
195 if (ret)
196 return ret;
dbe21408
MB		 197
198 return count;
199}
200
201static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
202
2624d5fa 203#ifdef CONFIG_DEBUG_FS
2624d5fa 204static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
13fd179f 205 size_t count, loff_t *ppos)
2624d5fa
MB		 206{
207 ssize_t ret;
208 struct snd_soc_codec *codec = file->private_data;
13fd179f
DP		 209 char *buf;
210
211 if (*ppos < 0 || !count)
212 return -EINVAL;
213
214 buf = kmalloc(count, GFP_KERNEL);
2624d5fa
MB		 215 if (!buf)
216 return -ENOMEM;
13fd179f
DP		 217
218 ret = soc_codec_reg_show(codec, buf, count, *ppos);
219 if (ret >= 0) {
220 if (copy_to_user(user_buf, buf, ret)) {
221 kfree(buf);
222 return -EFAULT;
223 }
224 *ppos += ret;
225 }
226
2624d5fa
MB		 227 kfree(buf);
228 return ret;
229}
230
231static ssize_t codec_reg_write_file(struct file *file,
232 const char __user *user_buf, size_t count, loff_t *ppos)
233{
234 char buf[32];
34e268d8 235 size_t buf_size;
2624d5fa
MB		 236 char *start = buf;
237 unsigned long reg, value;
2624d5fa
MB		 238 struct snd_soc_codec *codec = file->private_data;
239
240 buf_size = min(count, (sizeof(buf)-1));
241 if (copy_from_user(buf, user_buf, buf_size))
242 return -EFAULT;
243 buf[buf_size] = 0;
2624d5fa
MB		 244
245 while (*start == ' ')
246 start++;
247 reg = simple_strtoul(start, &start, 16);
2624d5fa
MB		 248 while (*start == ' ')
249 start++;
250 if (strict_strtoul(start, 16, &value))
251 return -EINVAL;
0d51a9cb
MB		 252
253 /* Userspace has been fiddling around behind the kernel's back */
254 add_taint(TAINT_USER);
255
e4f078d8 256 snd_soc_write(codec, reg, value);
2624d5fa
MB		 257 return buf_size;
258}
259
260static const struct file_operations codec_reg_fops = {
234e3405 261 .open = simple_open,
2624d5fa
MB		 262 .read = codec_reg_read_file,
263 .write = codec_reg_write_file,
6038f373 264 .llseek = default_llseek,
2624d5fa
MB		 265};
266
267static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
268{
d6ce4cf3
JN		 269 struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
270
271 codec->debugfs_codec_root = debugfs_create_dir(codec->name,
272 debugfs_card_root);
2624d5fa 273 if (!codec->debugfs_codec_root) {
64e60f9f 274 dev_warn(codec->dev, "Failed to create codec debugfs directory\n");
2624d5fa
MB		 275 return;
276 }
277
aaee8ef1
MB		 278 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
279 &codec->cache_sync);
280 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
281 &codec->cache_only);
282
2624d5fa
MB		 283 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
284 codec->debugfs_codec_root,
285 codec, &codec_reg_fops);
286 if (!codec->debugfs_reg)
64e60f9f 287 dev_warn(codec->dev, "Failed to create codec register debugfs file\n");
2624d5fa 288
8eecaf62 289 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
2624d5fa
MB		 290}
291
292static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
293{
294 debugfs_remove_recursive(codec->debugfs_codec_root);
295}
296
731f1ab2
SG		 297static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
298{
299 struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
300
301 platform->debugfs_platform_root = debugfs_create_dir(platform->name,
302 debugfs_card_root);
303 if (!platform->debugfs_platform_root) {
304 dev_warn(platform->dev,
305 "Failed to create platform debugfs directory\n");
306 return;
307 }
308
309 snd_soc_dapm_debugfs_init(&platform->dapm,
310 platform->debugfs_platform_root);
311}
312
313static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
314{
315 debugfs_remove_recursive(platform->debugfs_platform_root);
316}
317
c3c5a19a
MB		 318static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
319 size_t count, loff_t *ppos)
320{
321 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 322 ssize_t len, ret = 0;
c3c5a19a
MB		 323 struct snd_soc_codec *codec;
324
325 if (!buf)
326 return -ENOMEM;
327
2b194f9d
MB		 328 list_for_each_entry(codec, &codec_list, list) {
329 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
330 codec->name);
331 if (len >= 0)
332 ret += len;
333 if (ret > PAGE_SIZE) {
334 ret = PAGE_SIZE;
335 break;
336 }
337 }
c3c5a19a
MB		 338
339 if (ret >= 0)
340 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
341
342 kfree(buf);
343
344 return ret;
345}
346
347static const struct file_operations codec_list_fops = {
348 .read = codec_list_read_file,
349 .llseek = default_llseek,/* read accesses f_pos */
350};
351
f3208780
MB		 352static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
353 size_t count, loff_t *ppos)
354{
355 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 356 ssize_t len, ret = 0;
f3208780
MB		 357 struct snd_soc_dai *dai;
358
359 if (!buf)
360 return -ENOMEM;
361
2b194f9d
MB		 362 list_for_each_entry(dai, &dai_list, list) {
363 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name);
364 if (len >= 0)
365 ret += len;
366 if (ret > PAGE_SIZE) {
367 ret = PAGE_SIZE;
368 break;
369 }
370 }
f3208780 371
2b194f9d 372 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
f3208780
MB		 373
374 kfree(buf);
375
376 return ret;
377}
378
379static const struct file_operations dai_list_fops = {
380 .read = dai_list_read_file,
381 .llseek = default_llseek,/* read accesses f_pos */
382};
383
19c7ac27
MB		 384static ssize_t platform_list_read_file(struct file *file,
385 char __user *user_buf,
386 size_t count, loff_t *ppos)
387{
388 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 389 ssize_t len, ret = 0;
19c7ac27
MB		 390 struct snd_soc_platform *platform;
391
392 if (!buf)
393 return -ENOMEM;
394
2b194f9d
MB		 395 list_for_each_entry(platform, &platform_list, list) {
396 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
397 platform->name);
398 if (len >= 0)
399 ret += len;
400 if (ret > PAGE_SIZE) {
401 ret = PAGE_SIZE;
402 break;
403 }
404 }
19c7ac27 405
2b194f9d 406 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
19c7ac27
MB		 407
408 kfree(buf);
409
410 return ret;
411}
412
413static const struct file_operations platform_list_fops = {
414 .read = platform_list_read_file,
415 .llseek = default_llseek,/* read accesses f_pos */
416};
417
a6052154
JN		 418static void soc_init_card_debugfs(struct snd_soc_card *card)
419{
420 card->debugfs_card_root = debugfs_create_dir(card->name,
8a9dab1a 421 snd_soc_debugfs_root);
3a45b867 422 if (!card->debugfs_card_root) {
a6052154 423 dev_warn(card->dev,
7c08be84 424 "ASoC: Failed to create card debugfs directory\n");
3a45b867
JN		 425 return;
426 }
427
428 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
429 card->debugfs_card_root,
430 &card->pop_time);
431 if (!card->debugfs_pop_time)
432 dev_warn(card->dev,
433 "Failed to create pop time debugfs file\n");
a6052154
JN		 434}
435
436static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
437{
438 debugfs_remove_recursive(card->debugfs_card_root);
439}
440
2624d5fa
MB		 441#else
442
443static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
444{
445}
446
447static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
448{
449}
b95fccbc 450
731f1ab2
SG		 451static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
452{
453}
454
455static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
456{
457}
458
b95fccbc
AL		 459static inline void soc_init_card_debugfs(struct snd_soc_card *card)
460{
461}
462
463static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
464{
465}
2624d5fa
MB		 466#endif
467
47c88fff
LG		 468struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
469 const char *dai_link, int stream)
470{
471 int i;
472
473 for (i = 0; i < card->num_links; i++) {
474 if (card->rtd[i].dai_link->no_pcm &&
475 !strcmp(card->rtd[i].dai_link->name, dai_link))
476 return card->rtd[i].pcm->streams[stream].substream;
477 }
478 dev_dbg(card->dev, "failed to find dai link %s\n", dai_link);
479 return NULL;
480}
481EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
482
483struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
484 const char *dai_link)
485{
486 int i;
487
488 for (i = 0; i < card->num_links; i++) {
489 if (!strcmp(card->rtd[i].dai_link->name, dai_link))
490 return &card->rtd[i];
491 }
492 dev_dbg(card->dev, "failed to find rtd %s\n", dai_link);
493 return NULL;
494}
495EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime);
496
db2a4165
FM		 497#ifdef CONFIG_SND_SOC_AC97_BUS
498/* unregister ac97 codec */
499static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
500{
501 if (codec->ac97->dev.bus)
502 device_unregister(&codec->ac97->dev);
503 return 0;
504}
505
506/* stop no dev release warning */
507static void soc_ac97_device_release(struct device *dev){}
508
509/* register ac97 codec to bus */
510static int soc_ac97_dev_register(struct snd_soc_codec *codec)
511{
512 int err;
513
514 codec->ac97->dev.bus = &ac97_bus_type;
4ac5c61f 515 codec->ac97->dev.parent = codec->card->dev;
db2a4165
FM		 516 codec->ac97->dev.release = soc_ac97_device_release;
517
bb072bf0 518 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
f0fba2ad 519 codec->card->snd_card->number, 0, codec->name);
db2a4165
FM		 520 err = device_register(&codec->ac97->dev);
521 if (err < 0) {
522 snd_printk(KERN_ERR "Can't register ac97 bus\n");
523 codec->ac97->dev.bus = NULL;
524 return err;
525 }
526 return 0;
527}
528#endif
529
6f8ab4ac 530#ifdef CONFIG_PM_SLEEP
db2a4165 531/* powers down audio subsystem for suspend */
6f8ab4ac 532int snd_soc_suspend(struct device *dev)
db2a4165 533{
6f8ab4ac 534 struct snd_soc_card *card = dev_get_drvdata(dev);
2eea392d 535 struct snd_soc_codec *codec;
db2a4165
FM		 536 int i;
537
e3509ff0
DM		 538 /* If the initialization of this soc device failed, there is no codec
539 * associated with it. Just bail out in this case.
540 */
f0fba2ad 541 if (list_empty(&card->codec_dev_list))
e3509ff0
DM		 542 return 0;
543
6ed25978
AG		 544 /* Due to the resume being scheduled into a workqueue we could
545 * suspend before that's finished - wait for it to complete.
546 */
f0fba2ad
LG		 547 snd_power_lock(card->snd_card);
548 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
549 snd_power_unlock(card->snd_card);
6ed25978
AG		 550
551 /* we're going to block userspace touching us until resume completes */
f0fba2ad 552 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
6ed25978 553
a00f90f9 554 /* mute any active DACs */
f0fba2ad
LG		 555 for (i = 0; i < card->num_rtd; i++) {
556 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
557 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 558
f0fba2ad 559 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 560 continue;
561
f0fba2ad
LG		 562 if (drv->ops->digital_mute && dai->playback_active)
563 drv->ops->digital_mute(dai, 1);
db2a4165
FM		 564 }
565
4ccab3e7 566 /* suspend all pcms */
f0fba2ad
LG		 567 for (i = 0; i < card->num_rtd; i++) {
568 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 569 continue;
570
f0fba2ad 571 snd_pcm_suspend_all(card->rtd[i].pcm);
3efab7dc 572 }
4ccab3e7 573
87506549 574 if (card->suspend_pre)
70b2ac12 575 card->suspend_pre(card);
db2a4165 576
f0fba2ad
LG		 577 for (i = 0; i < card->num_rtd; i++) {
578 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
579 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 580
f0fba2ad 581 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 582 continue;
583
f0fba2ad
LG		 584 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
585 cpu_dai->driver->suspend(cpu_dai);
586 if (platform->driver->suspend && !platform->suspended) {
587 platform->driver->suspend(cpu_dai);
588 platform->suspended = 1;
589 }
db2a4165
FM		 590 }
591
592 /* close any waiting streams and save state */
f0fba2ad 593 for (i = 0; i < card->num_rtd; i++) {
5b84ba26 594 flush_delayed_work_sync(&card->rtd[i].delayed_work);
ce6120cc 595 card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
f0fba2ad 596 }
db2a4165 597
f0fba2ad 598 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 599
f0fba2ad 600 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 601 continue;
602
7bd3a6f3
MB		 603 snd_soc_dapm_stream_event(&card->rtd[i],
604 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 605 SND_SOC_DAPM_STREAM_SUSPEND);
f0fba2ad 606
7bd3a6f3
MB		 607 snd_soc_dapm_stream_event(&card->rtd[i],
608 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 609 SND_SOC_DAPM_STREAM_SUSPEND);
db2a4165
FM		 610 }
611
f0fba2ad 612 /* suspend all CODECs */
2eea392d 613 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 614 /* If there are paths active then the CODEC will be held with
615 * bias _ON and should not be suspended. */
616 if (!codec->suspended && codec->driver->suspend) {
ce6120cc 617 switch (codec->dapm.bias_level) {
f0fba2ad 618 case SND_SOC_BIAS_STANDBY:
125a25da
MB		 619 /*
620 * If the CODEC is capable of idle
621 * bias off then being in STANDBY
622 * means it's doing something,
623 * otherwise fall through.
624 */
625 if (codec->dapm.idle_bias_off) {
626 dev_dbg(codec->dev,
627 "idle_bias_off CODEC on over suspend\n");
628 break;
629 }
f0fba2ad 630 case SND_SOC_BIAS_OFF:
84b315ee 631 codec->driver->suspend(codec);
f0fba2ad 632 codec->suspended = 1;
7be4ba24 633 codec->cache_sync = 1;
f0fba2ad
LG		 634 break;
635 default:
636 dev_dbg(codec->dev, "CODEC is on over suspend\n");
637 break;
638 }
1547aba9
MB		 639 }
640 }
db2a4165 641
f0fba2ad
LG		 642 for (i = 0; i < card->num_rtd; i++) {
643 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 644
f0fba2ad 645 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 646 continue;
647
f0fba2ad
LG		 648 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
649 cpu_dai->driver->suspend(cpu_dai);
db2a4165
FM		 650 }
651
87506549 652 if (card->suspend_post)
70b2ac12 653 card->suspend_post(card);
db2a4165
FM		 654
655 return 0;
656}
6f8ab4ac 657EXPORT_SYMBOL_GPL(snd_soc_suspend);
db2a4165 658
6ed25978
AG		 659/* deferred resume work, so resume can complete before we finished
660 * setting our codec back up, which can be very slow on I2C
661 */
662static void soc_resume_deferred(struct work_struct *work)
db2a4165 663{
f0fba2ad
LG		 664 struct snd_soc_card *card =
665 container_of(work, struct snd_soc_card, deferred_resume_work);
2eea392d 666 struct snd_soc_codec *codec;
db2a4165
FM		 667 int i;
668
6ed25978
AG		 669 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
670 * so userspace apps are blocked from touching us
671 */
672
f0fba2ad 673 dev_dbg(card->dev, "starting resume work\n");
6ed25978 674
9949788b 675 /* Bring us up into D2 so that DAPM starts enabling things */
f0fba2ad 676 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
9949788b 677
87506549 678 if (card->resume_pre)
70b2ac12 679 card->resume_pre(card);
db2a4165 680
f0fba2ad
LG		 681 /* resume AC97 DAIs */
682 for (i = 0; i < card->num_rtd; i++) {
683 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 684
f0fba2ad 685 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 686 continue;
687
f0fba2ad
LG		 688 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
689 cpu_dai->driver->resume(cpu_dai);
690 }
691
2eea392d 692 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 693 /* If the CODEC was idle over suspend then it will have been
694 * left with bias OFF or STANDBY and suspended so we must now
695 * resume. Otherwise the suspend was suppressed.
696 */
697 if (codec->driver->resume && codec->suspended) {
ce6120cc 698 switch (codec->dapm.bias_level) {
f0fba2ad
LG		 699 case SND_SOC_BIAS_STANDBY:
700 case SND_SOC_BIAS_OFF:
701 codec->driver->resume(codec);
702 codec->suspended = 0;
703 break;
704 default:
705 dev_dbg(codec->dev, "CODEC was on over suspend\n");
706 break;
707 }
1547aba9
MB		 708 }
709 }
db2a4165 710
f0fba2ad 711 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 712
f0fba2ad 713 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 714 continue;
715
7bd3a6f3 716 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 717 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 718 SND_SOC_DAPM_STREAM_RESUME);
f0fba2ad 719
7bd3a6f3 720 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 721 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 722 SND_SOC_DAPM_STREAM_RESUME);
db2a4165
FM		 723 }
724
3ff3f64b 725 /* unmute any active DACs */
f0fba2ad
LG		 726 for (i = 0; i < card->num_rtd; i++) {
727 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
728 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 729
f0fba2ad 730 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 731 continue;
732
f0fba2ad
LG		 733 if (drv->ops->digital_mute && dai->playback_active)
734 drv->ops->digital_mute(dai, 0);
db2a4165
FM		 735 }
736
f0fba2ad
LG		 737 for (i = 0; i < card->num_rtd; i++) {
738 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
739 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 740
f0fba2ad 741 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 742 continue;
743
f0fba2ad
LG		 744 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
745 cpu_dai->driver->resume(cpu_dai);
746 if (platform->driver->resume && platform->suspended) {
747 platform->driver->resume(cpu_dai);
748 platform->suspended = 0;
749 }
db2a4165
FM		 750 }
751
87506549 752 if (card->resume_post)
70b2ac12 753 card->resume_post(card);
db2a4165 754
f0fba2ad 755 dev_dbg(card->dev, "resume work completed\n");
6ed25978
AG		 756
757 /* userspace can access us now we are back as we were before */
f0fba2ad 758 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
6ed25978
AG		 759}
760
761/* powers up audio subsystem after a suspend */
6f8ab4ac 762int snd_soc_resume(struct device *dev)
6ed25978 763{
6f8ab4ac 764 struct snd_soc_card *card = dev_get_drvdata(dev);
82e14e8b 765 int i, ac97_control = 0;
b9dd94a8 766
5ff1ddf2
EM		 767 /* If the initialization of this soc device failed, there is no codec
768 * associated with it. Just bail out in this case.
769 */
770 if (list_empty(&card->codec_dev_list))
771 return 0;
772
64ab9baa
MB		 773 /* AC97 devices might have other drivers hanging off them so
774 * need to resume immediately. Other drivers don't have that
775 * problem and may take a substantial amount of time to resume
776 * due to I/O costs and anti-pop so handle them out of line.
777 */
f0fba2ad
LG		 778 for (i = 0; i < card->num_rtd; i++) {
779 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
82e14e8b
SW		 780 ac97_control |= cpu_dai->driver->ac97_control;
781 }
782 if (ac97_control) {
783 dev_dbg(dev, "Resuming AC97 immediately\n");
784 soc_resume_deferred(&card->deferred_resume_work);
785 } else {
786 dev_dbg(dev, "Scheduling resume work\n");
787 if (!schedule_work(&card->deferred_resume_work))
788 dev_err(dev, "resume work item may be lost\n");
64ab9baa 789 }
6ed25978 790
db2a4165
FM		 791 return 0;
792}
6f8ab4ac 793EXPORT_SYMBOL_GPL(snd_soc_resume);
db2a4165 794#else
6f8ab4ac
MB		 795#define snd_soc_suspend NULL
796#define snd_soc_resume NULL
db2a4165
FM		 797#endif
798
85e7652d 799static const struct snd_soc_dai_ops null_dai_ops = {
02a06d30
BS		 800};
801
f0fba2ad 802static int soc_bind_dai_link(struct snd_soc_card *card, int num)
db2a4165 803{
f0fba2ad
LG		 804 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
805 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
fe3e78e0 806 struct snd_soc_codec *codec;
435c5e25 807 struct snd_soc_platform *platform;
f0fba2ad 808 struct snd_soc_dai *codec_dai, *cpu_dai;
848dd8be 809 const char *platform_name;
435c5e25 810
f0fba2ad 811 dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num);
435c5e25 812
b19e6e7b 813 /* Find CPU DAI from registered DAIs*/
f0fba2ad 814 list_for_each_entry(cpu_dai, &dai_list, list) {
bc92657a
SW		 815 if (dai_link->cpu_of_node &&
816 (cpu_dai->dev->of_node != dai_link->cpu_of_node))
817 continue;
818 if (dai_link->cpu_name &&
819 strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name))
820 continue;
821 if (dai_link->cpu_dai_name &&
822 strcmp(cpu_dai->name, dai_link->cpu_dai_name))
823 continue;
2610ab77
SW		 824
825 rtd->cpu_dai = cpu_dai;
435c5e25 826 }
6308419a 827
b19e6e7b 828 if (!rtd->cpu_dai) {
fb099cb7 829 dev_err(card->dev, "CPU DAI %s not registered\n",
b19e6e7b
MB		 830 dai_link->cpu_dai_name);
831 return -EPROBE_DEFER;
f0fba2ad
LG		 832 }
833
b19e6e7b 834 /* Find CODEC from registered CODECs */
f0fba2ad 835 list_for_each_entry(codec, &codec_list, list) {
5a504963
SW		 836 if (dai_link->codec_of_node) {
837 if (codec->dev->of_node != dai_link->codec_of_node)
838 continue;
839 } else {
840 if (strcmp(codec->name, dai_link->codec_name))
841 continue;
842 }
2610ab77
SW		 843
844 rtd->codec = codec;
845
846 /*
847 * CODEC found, so find CODEC DAI from registered DAIs from
848 * this CODEC
849 */
850 list_for_each_entry(codec_dai, &dai_list, list) {
851 if (codec->dev == codec_dai->dev &&
852 !strcmp(codec_dai->name,
853 dai_link->codec_dai_name)) {
f0fba2ad 854
2610ab77 855 rtd->codec_dai = codec_dai;
2610ab77 856 }
435c5e25 857 }
2610ab77 858
b19e6e7b 859 if (!rtd->codec_dai) {
fb099cb7 860 dev_err(card->dev, "CODEC DAI %s not registered\n",
b19e6e7b
MB		 861 dai_link->codec_dai_name);
862 return -EPROBE_DEFER;
863 }
f0fba2ad 864 }
6b05eda6 865
b19e6e7b 866 if (!rtd->codec) {
fb099cb7 867 dev_err(card->dev, "CODEC %s not registered\n",
b19e6e7b
MB		 868 dai_link->codec_name);
869 return -EPROBE_DEFER;
870 }
848dd8be
MB		 871
872 /* if there's no platform we match on the empty platform */
873 platform_name = dai_link->platform_name;
5a504963 874 if (!platform_name && !dai_link->platform_of_node)
848dd8be
MB		 875 platform_name = "snd-soc-dummy";
876
b19e6e7b 877 /* find one from the set of registered platforms */
f0fba2ad 878 list_for_each_entry(platform, &platform_list, list) {
5a504963
SW		 879 if (dai_link->platform_of_node) {
880 if (platform->dev->of_node !=
881 dai_link->platform_of_node)
882 continue;
883 } else {
884 if (strcmp(platform->name, platform_name))
885 continue;
886 }
2610ab77
SW		 887
888 rtd->platform = platform;
02a06d30 889 }
b19e6e7b 890 if (!rtd->platform) {
fb099cb7 891 dev_err(card->dev, "platform %s not registered\n",
f0fba2ad 892 dai_link->platform_name);
b19e6e7b 893 return -EPROBE_DEFER;
f0fba2ad 894 }
b19e6e7b
MB		 895
896 card->num_rtd++;
897
898 return 0;
f0fba2ad
LG		 899}
900
d12cd198
SW		 901static int soc_remove_platform(struct snd_soc_platform *platform)
902{
903 int ret;
904
905 if (platform->driver->remove) {
906 ret = platform->driver->remove(platform);
907 if (ret < 0)
908 pr_err("asoc: failed to remove %s: %d\n",
909 platform->name, ret);
910 }
911
912 /* Make sure all DAPM widgets are freed */
913 snd_soc_dapm_free(&platform->dapm);
914
915 soc_cleanup_platform_debugfs(platform);
916 platform->probed = 0;
917 list_del(&platform->card_list);
918 module_put(platform->dev->driver->owner);
919
920 return 0;
921}
922
589c3563
JN		 923static void soc_remove_codec(struct snd_soc_codec *codec)
924{
925 int err;
926
927 if (codec->driver->remove) {
928 err = codec->driver->remove(codec);
929 if (err < 0)
930 dev_err(codec->dev,
931 "asoc: failed to remove %s: %d\n",
932 codec->name, err);
933 }
934
935 /* Make sure all DAPM widgets are freed */
936 snd_soc_dapm_free(&codec->dapm);
937
938 soc_cleanup_codec_debugfs(codec);
939 codec->probed = 0;
940 list_del(&codec->card_list);
941 module_put(codec->dev->driver->owner);
942}
943
62ae68fa 944static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 945{
946 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
f0fba2ad
LG		 947 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
948 int err;
949
950 /* unregister the rtd device */
951 if (rtd->dev_registered) {
36ae1a96
MB		 952 device_remove_file(rtd->dev, &dev_attr_pmdown_time);
953 device_remove_file(rtd->dev, &dev_attr_codec_reg);
954 device_unregister(rtd->dev);
f0fba2ad
LG		 955 rtd->dev_registered = 0;
956 }
957
958 /* remove the CODEC DAI */
0168bf0d
LG		 959 if (codec_dai && codec_dai->probed &&
960 codec_dai->driver->remove_order == order) {
f0fba2ad
LG		 961 if (codec_dai->driver->remove) {
962 err = codec_dai->driver->remove(codec_dai);
963 if (err < 0)
0837fc62
FE		 964 pr_err("asoc: failed to remove %s: %d\n",
965 codec_dai->name, err);
6b05eda6 966 }
f0fba2ad
LG		 967 codec_dai->probed = 0;
968 list_del(&codec_dai->card_list);
969 }
6b05eda6 970
f0fba2ad 971 /* remove the cpu_dai */
0168bf0d
LG		 972 if (cpu_dai && cpu_dai->probed &&
973 cpu_dai->driver->remove_order == order) {
f0fba2ad
LG		 974 if (cpu_dai->driver->remove) {
975 err = cpu_dai->driver->remove(cpu_dai);
976 if (err < 0)
0837fc62
FE		 977 pr_err("asoc: failed to remove %s: %d\n",
978 cpu_dai->name, err);
db2a4165 979 }
f0fba2ad
LG		 980 cpu_dai->probed = 0;
981 list_del(&cpu_dai->card_list);
a9db7dbe 982
18d75644
SW		 983 if (!cpu_dai->codec) {
984 snd_soc_dapm_free(&cpu_dai->dapm);
a9db7dbe 985 module_put(cpu_dai->dev->driver->owner);
18d75644 986 }
db2a4165 987 }
f0fba2ad 988}
db2a4165 989
62ae68fa
SW		 990static void soc_remove_link_components(struct snd_soc_card *card, int num,
991 int order)
992{
993 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
994 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
995 struct snd_soc_dai *codec_dai = rtd->codec_dai;
996 struct snd_soc_platform *platform = rtd->platform;
997 struct snd_soc_codec *codec;
998
999 /* remove the platform */
1000 if (platform && platform->probed &&
1001 platform->driver->remove_order == order) {
1002 soc_remove_platform(platform);
1003 }
1004
1005 /* remove the CODEC-side CODEC */
1006 if (codec_dai) {
1007 codec = codec_dai->codec;
1008 if (codec && codec->probed &&
1009 codec->driver->remove_order == order)
1010 soc_remove_codec(codec);
1011 }
1012
1013 /* remove any CPU-side CODEC */
1014 if (cpu_dai) {
1015 codec = cpu_dai->codec;
1016 if (codec && codec->probed &&
1017 codec->driver->remove_order == order)
1018 soc_remove_codec(codec);
1019 }
1020}
1021
0671fd8e
KM		 1022static void soc_remove_dai_links(struct snd_soc_card *card)
1023{
0168bf0d 1024 int dai, order;
0671fd8e 1025
0168bf0d
LG		 1026 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1027 order++) {
1028 for (dai = 0; dai < card->num_rtd; dai++)
62ae68fa
SW		 1029 soc_remove_link_dais(card, dai, order);
1030 }
1031
1032 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1033 order++) {
1034 for (dai = 0; dai < card->num_rtd; dai++)
1035 soc_remove_link_components(card, dai, order);
0168bf0d 1036 }
62ae68fa 1037
0671fd8e
KM		 1038 card->num_rtd = 0;
1039}
1040
ead9b919
JN		 1041static void soc_set_name_prefix(struct snd_soc_card *card,
1042 struct snd_soc_codec *codec)
1043{
1044 int i;
1045
ff819b83 1046 if (card->codec_conf == NULL)
ead9b919
JN		 1047 return;
1048
ff819b83
DP		 1049 for (i = 0; i < card->num_configs; i++) {
1050 struct snd_soc_codec_conf *map = &card->codec_conf[i];
ead9b919
JN		 1051 if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
1052 codec->name_prefix = map->name_prefix;
1053 break;
1054 }
1055 }
1056}
1057
589c3563
JN		 1058static int soc_probe_codec(struct snd_soc_card *card,
1059 struct snd_soc_codec *codec)
1060{
1061 int ret = 0;
89b95ac0 1062 const struct snd_soc_codec_driver *driver = codec->driver;
888df395 1063 struct snd_soc_dai *dai;
589c3563
JN		 1064
1065 codec->card = card;
1066 codec->dapm.card = card;
1067 soc_set_name_prefix(card, codec);
1068
70d29331
JN		 1069 if (!try_module_get(codec->dev->driver->owner))
1070 return -ENODEV;
1071
d5d1e0be
LPC		 1072 soc_init_codec_debugfs(codec);
1073
77530150
LPC		 1074 if (driver->dapm_widgets)
1075 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
1076 driver->num_dapm_widgets);
1077
888df395
MB		 1078 /* Create DAPM widgets for each DAI stream */
1079 list_for_each_entry(dai, &dai_list, list) {
1080 if (dai->dev != codec->dev)
1081 continue;
1082
1083 snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
1084 }
1085
33c5f969
MB		 1086 codec->dapm.idle_bias_off = driver->idle_bias_off;
1087
89b95ac0
MB		 1088 if (driver->probe) {
1089 ret = driver->probe(codec);
589c3563
JN		 1090 if (ret < 0) {
1091 dev_err(codec->dev,
1092 "asoc: failed to probe CODEC %s: %d\n",
1093 codec->name, ret);
70d29331 1094 goto err_probe;
589c3563
JN		 1095 }
1096 }
1097
38cbf959 1098 /* If the driver didn't set I/O up try regmap */
98d3088e 1099 if (!codec->write && dev_get_regmap(codec->dev, NULL))
38cbf959
MB		 1100 snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
1101
b7af1daf 1102 if (driver->controls)
022658be 1103 snd_soc_add_codec_controls(codec, driver->controls,
b7af1daf 1104 driver->num_controls);
89b95ac0
MB		 1105 if (driver->dapm_routes)
1106 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
1107 driver->num_dapm_routes);
1108
589c3563
JN		 1109 /* mark codec as probed and add to card codec list */
1110 codec->probed = 1;
1111 list_add(&codec->card_list, &card->codec_dev_list);
7be31be8 1112 list_add(&codec->dapm.list, &card->dapm_list);
589c3563 1113
70d29331
JN		 1114 return 0;
1115
1116err_probe:
d5d1e0be 1117 soc_cleanup_codec_debugfs(codec);
70d29331
JN		 1118 module_put(codec->dev->driver->owner);
1119
589c3563
JN		 1120 return ret;
1121}
1122
956245e9
LG		 1123static int soc_probe_platform(struct snd_soc_card *card,
1124 struct snd_soc_platform *platform)
1125{
1126 int ret = 0;
1127 const struct snd_soc_platform_driver *driver = platform->driver;
be09ad90 1128 struct snd_soc_dai *dai;
956245e9
LG		 1129
1130 platform->card = card;
b7950641 1131 platform->dapm.card = card;
956245e9
LG		 1132
1133 if (!try_module_get(platform->dev->driver->owner))
1134 return -ENODEV;
1135
731f1ab2
SG		 1136 soc_init_platform_debugfs(platform);
1137
cb2cf612
LG		 1138 if (driver->dapm_widgets)
1139 snd_soc_dapm_new_controls(&platform->dapm,
1140 driver->dapm_widgets, driver->num_dapm_widgets);
1141
be09ad90
LG		 1142 /* Create DAPM widgets for each DAI stream */
1143 list_for_each_entry(dai, &dai_list, list) {
1144 if (dai->dev != platform->dev)
1145 continue;
1146
1147 snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
1148 }
1149
3fec6b6d
SW		 1150 platform->dapm.idle_bias_off = 1;
1151
956245e9
LG		 1152 if (driver->probe) {
1153 ret = driver->probe(platform);
1154 if (ret < 0) {
1155 dev_err(platform->dev,
1156 "asoc: failed to probe platform %s: %d\n",
1157 platform->name, ret);
1158 goto err_probe;
1159 }
1160 }
1161
cb2cf612
LG		 1162 if (driver->controls)
1163 snd_soc_add_platform_controls(platform, driver->controls,
1164 driver->num_controls);
1165 if (driver->dapm_routes)
1166 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1167 driver->num_dapm_routes);
1168
956245e9
LG		 1169 /* mark platform as probed and add to card platform list */
1170 platform->probed = 1;
1171 list_add(&platform->card_list, &card->platform_dev_list);
b7950641 1172 list_add(&platform->dapm.list, &card->dapm_list);
956245e9
LG		 1173
1174 return 0;
1175
1176err_probe:
02db1103 1177 soc_cleanup_platform_debugfs(platform);
956245e9
LG		 1178 module_put(platform->dev->driver->owner);
1179
1180 return ret;
1181}
1182
36ae1a96
MB		 1183static void rtd_release(struct device *dev)
1184{
1185 kfree(dev);
1186}
f0fba2ad 1187
589c3563
JN		 1188static int soc_post_component_init(struct snd_soc_card *card,
1189 struct snd_soc_codec *codec,
1190 int num, int dailess)
1191{
1192 struct snd_soc_dai_link *dai_link = NULL;
1193 struct snd_soc_aux_dev *aux_dev = NULL;
1194 struct snd_soc_pcm_runtime *rtd;
1195 const char *temp, *name;
1196 int ret = 0;
1197
1198 if (!dailess) {
1199 dai_link = &card->dai_link[num];
1200 rtd = &card->rtd[num];
1201 name = dai_link->name;
1202 } else {
1203 aux_dev = &card->aux_dev[num];
1204 rtd = &card->rtd_aux[num];
1205 name = aux_dev->name;
1206 }
0962bb21 1207 rtd->card = card;
589c3563 1208
4b1cfcb4
MB		 1209 /* Make sure all DAPM widgets are instantiated */
1210 snd_soc_dapm_new_widgets(&codec->dapm);
1211
589c3563
JN		 1212 /* machine controls, routes and widgets are not prefixed */
1213 temp = codec->name_prefix;
1214 codec->name_prefix = NULL;
1215
1216 /* do machine specific initialization */
1217 if (!dailess && dai_link->init)
1218 ret = dai_link->init(rtd);
1219 else if (dailess && aux_dev->init)
1220 ret = aux_dev->init(&codec->dapm);
1221 if (ret < 0) {
1222 dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret);
1223 return ret;
1224 }
1225 codec->name_prefix = temp;
1226
589c3563
JN		 1227 /* register the rtd device */
1228 rtd->codec = codec;
36ae1a96
MB		 1229
1230 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1231 if (!rtd->dev)
1232 return -ENOMEM;
1233 device_initialize(rtd->dev);
1234 rtd->dev->parent = card->dev;
1235 rtd->dev->release = rtd_release;
1236 rtd->dev->init_name = name;
1237 dev_set_drvdata(rtd->dev, rtd);
b8c0dab9 1238 mutex_init(&rtd->pcm_mutex);
01d7584c
LG		 1239 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
1240 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
1241 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
1242 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
36ae1a96 1243 ret = device_add(rtd->dev);
589c3563
JN		 1244 if (ret < 0) {
1245 dev_err(card->dev,
1246 "asoc: failed to register runtime device: %d\n", ret);
1247 return ret;
1248 }
1249 rtd->dev_registered = 1;
1250
1251 /* add DAPM sysfs entries for this codec */
36ae1a96 1252 ret = snd_soc_dapm_sys_add(rtd->dev);
589c3563
JN		 1253 if (ret < 0)
1254 dev_err(codec->dev,
1255 "asoc: failed to add codec dapm sysfs entries: %d\n",
1256 ret);
1257
1258 /* add codec sysfs entries */
36ae1a96 1259 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
589c3563
JN		 1260 if (ret < 0)
1261 dev_err(codec->dev,
1262 "asoc: failed to add codec sysfs files: %d\n", ret);
1263
f86dcef8
LG		 1264#ifdef CONFIG_DEBUG_FS
1265 /* add DPCM sysfs entries */
cd0f8911 1266 if (!dailess && !dai_link->dynamic)
f86dcef8
LG		 1267 goto out;
1268
1269 ret = soc_dpcm_debugfs_add(rtd);
1270 if (ret < 0)
1271 dev_err(rtd->dev, "asoc: failed to add dpcm sysfs entries: %d\n", ret);
1272
1273out:
1274#endif
589c3563
JN		 1275 return 0;
1276}
1277
62ae68fa
SW		 1278static int soc_probe_link_components(struct snd_soc_card *card, int num,
1279 int order)
1280{
1281 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1282 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1283 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1284 struct snd_soc_platform *platform = rtd->platform;
1285 int ret;
1286
1287 /* probe the CPU-side component, if it is a CODEC */
1288 if (cpu_dai->codec &&
1289 !cpu_dai->codec->probed &&
1290 cpu_dai->codec->driver->probe_order == order) {
1291 ret = soc_probe_codec(card, cpu_dai->codec);
1292 if (ret < 0)
1293 return ret;
1294 }
1295
1296 /* probe the CODEC-side component */
1297 if (!codec_dai->codec->probed &&
1298 codec_dai->codec->driver->probe_order == order) {
1299 ret = soc_probe_codec(card, codec_dai->codec);
1300 if (ret < 0)
1301 return ret;
1302 }
1303
1304 /* probe the platform */
1305 if (!platform->probed &&
1306 platform->driver->probe_order == order) {
1307 ret = soc_probe_platform(card, platform);
1308 if (ret < 0)
1309 return ret;
1310 }
1311
1312 return 0;
1313}
1314
1315static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 1316{
1317 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1318 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1319 struct snd_soc_codec *codec = rtd->codec;
1320 struct snd_soc_platform *platform = rtd->platform;
c74184ed
MB		 1321 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1322 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1323 struct snd_soc_dapm_widget *play_w, *capture_w;
f0fba2ad
LG		 1324 int ret;
1325
0168bf0d
LG		 1326 dev_dbg(card->dev, "probe %s dai link %d late %d\n",
1327 card->name, num, order);
f0fba2ad
LG		 1328
1329 /* config components */
f0fba2ad 1330 cpu_dai->platform = platform;
f0fba2ad
LG		 1331 codec_dai->card = card;
1332 cpu_dai->card = card;
1333
1334 /* set default power off timeout */
1335 rtd->pmdown_time = pmdown_time;
1336
1337 /* probe the cpu_dai */
0168bf0d
LG		 1338 if (!cpu_dai->probed &&
1339 cpu_dai->driver->probe_order == order) {
a9db7dbe
SW		 1340 if (!cpu_dai->codec) {
1341 cpu_dai->dapm.card = card;
1342 if (!try_module_get(cpu_dai->dev->driver->owner))
1343 return -ENODEV;
61b61e3c 1344
18d75644 1345 list_add(&cpu_dai->dapm.list, &card->dapm_list);
a9db7dbe
SW		 1346 snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai);
1347 }
be09ad90 1348
f0fba2ad
LG		 1349 if (cpu_dai->driver->probe) {
1350 ret = cpu_dai->driver->probe(cpu_dai);
1351 if (ret < 0) {
0837fc62
FE		 1352 pr_err("asoc: failed to probe CPU DAI %s: %d\n",
1353 cpu_dai->name, ret);
61b61e3c 1354 module_put(cpu_dai->dev->driver->owner);
f0fba2ad
LG		 1355 return ret;
1356 }
1357 }
1358 cpu_dai->probed = 1;
1c8371d6 1359 /* mark cpu_dai as probed and add to card dai list */
f0fba2ad 1360 list_add(&cpu_dai->card_list, &card->dai_dev_list);
db2a4165
FM		 1361 }
1362
f0fba2ad 1363 /* probe the CODEC DAI */
0168bf0d 1364 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
f0fba2ad
LG		 1365 if (codec_dai->driver->probe) {
1366 ret = codec_dai->driver->probe(codec_dai);
fe3e78e0 1367 if (ret < 0) {
0837fc62
FE		 1368 pr_err("asoc: failed to probe CODEC DAI %s: %d\n",
1369 codec_dai->name, ret);
f0fba2ad 1370 return ret;
fe3e78e0
MB		 1371 }
1372 }
f0fba2ad 1373
1c8371d6 1374 /* mark codec_dai as probed and add to card dai list */
f0fba2ad
LG		 1375 codec_dai->probed = 1;
1376 list_add(&codec_dai->card_list, &card->dai_dev_list);
fe3e78e0
MB		 1377 }
1378
0168bf0d
LG		 1379 /* complete DAI probe during last probe */
1380 if (order != SND_SOC_COMP_ORDER_LAST)
1381 return 0;
1382
589c3563
JN		 1383 ret = soc_post_component_init(card, codec, num, 0);
1384 if (ret)
f0fba2ad 1385 return ret;
fe3e78e0 1386
36ae1a96 1387 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
f0fba2ad 1388 if (ret < 0)
0837fc62 1389 pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret);
f0fba2ad 1390
c74184ed
MB		 1391 if (!dai_link->params) {
1392 /* create the pcm */
1393 ret = soc_new_pcm(rtd, num);
1394 if (ret < 0) {
1395 pr_err("asoc: can't create pcm %s :%d\n",
1396 dai_link->stream_name, ret);
1397 return ret;
1398 }
1399 } else {
1400 /* link the DAI widgets */
1401 play_w = codec_dai->playback_widget;
1402 capture_w = cpu_dai->capture_widget;
1403 if (play_w && capture_w) {
1404 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1405 capture_w, play_w);
1406 if (ret != 0) {
1407 dev_err(card->dev, "Can't link %s to %s: %d\n",
1408 play_w->name, capture_w->name, ret);
1409 return ret;
1410 }
1411 }
1412
1413 play_w = cpu_dai->playback_widget;
1414 capture_w = codec_dai->capture_widget;
1415 if (play_w && capture_w) {
1416 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1417 capture_w, play_w);
1418 if (ret != 0) {
1419 dev_err(card->dev, "Can't link %s to %s: %d\n",
1420 play_w->name, capture_w->name, ret);
1421 return ret;
1422 }
1423 }
f0fba2ad
LG		 1424 }
1425
1426 /* add platform data for AC97 devices */
1427 if (rtd->codec_dai->driver->ac97_control)
1428 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1429
1430 return 0;
1431}
1432
fe3e78e0 1433#ifdef CONFIG_SND_SOC_AC97_BUS
f0fba2ad
LG		 1434static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1435{
1436 int ret;
1437
fe3e78e0
MB		 1438 /* Only instantiate AC97 if not already done by the adaptor
1439 * for the generic AC97 subsystem.
1440 */
f0fba2ad 1441 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
0562f788
MW		 1442 /*
1443 * It is possible that the AC97 device is already registered to
1444 * the device subsystem. This happens when the device is created
1445 * via snd_ac97_mixer(). Currently only SoC codec that does so
1446 * is the generic AC97 glue but others migh emerge.
1447 *
1448 * In those cases we don't try to register the device again.
1449 */
1450 if (!rtd->codec->ac97_created)
1451 return 0;
f0fba2ad
LG		 1452
1453 ret = soc_ac97_dev_register(rtd->codec);
fe3e78e0 1454 if (ret < 0) {
0837fc62 1455 pr_err("asoc: AC97 device register failed:%d\n", ret);
f0fba2ad 1456 return ret;
fe3e78e0 1457 }
f0fba2ad
LG		 1458
1459 rtd->codec->ac97_registered = 1;
fe3e78e0 1460 }
f0fba2ad
LG		 1461 return 0;
1462}
1463
1464static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1465{
1466 if (codec->ac97_registered) {
1467 soc_ac97_dev_unregister(codec);
1468 codec->ac97_registered = 0;
1469 }
1470}
fe3e78e0
MB		 1471#endif
1472
b19e6e7b
MB		 1473static int soc_check_aux_dev(struct snd_soc_card *card, int num)
1474{
1475 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
1476 struct snd_soc_codec *codec;
1477
1478 /* find CODEC from registered CODECs*/
1479 list_for_each_entry(codec, &codec_list, list) {
1480 if (!strcmp(codec->name, aux_dev->codec_name))
1481 return 0;
1482 }
1483
fb099cb7
MB		 1484 dev_err(card->dev, "%s not registered\n", aux_dev->codec_name);
1485
b19e6e7b
MB		 1486 return -EPROBE_DEFER;
1487}
1488
2eea392d
JN		 1489static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1490{
1491 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
2eea392d 1492 struct snd_soc_codec *codec;
676ad98a 1493 int ret = -ENODEV;
2eea392d
JN		 1494
1495 /* find CODEC from registered CODECs*/
1496 list_for_each_entry(codec, &codec_list, list) {
1497 if (!strcmp(codec->name, aux_dev->codec_name)) {
1498 if (codec->probed) {
1499 dev_err(codec->dev,
1500 "asoc: codec already probed");
1501 ret = -EBUSY;
1502 goto out;
1503 }
676ad98a 1504 goto found;
2eea392d
JN		 1505 }
1506 }
676ad98a
JN		 1507 /* codec not found */
1508 dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name);
b19e6e7b 1509 return -EPROBE_DEFER;
2eea392d 1510
676ad98a 1511found:
589c3563 1512 ret = soc_probe_codec(card, codec);
2eea392d 1513 if (ret < 0)
589c3563 1514 return ret;
2eea392d 1515
589c3563 1516 ret = soc_post_component_init(card, codec, num, 1);
2eea392d
JN		 1517
1518out:
1519 return ret;
1520}
1521
1522static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1523{
1524 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1525 struct snd_soc_codec *codec = rtd->codec;
2eea392d
JN		 1526
1527 /* unregister the rtd device */
1528 if (rtd->dev_registered) {
36ae1a96
MB		 1529 device_remove_file(rtd->dev, &dev_attr_codec_reg);
1530 device_del(rtd->dev);
2eea392d
JN		 1531 rtd->dev_registered = 0;
1532 }
1533
589c3563
JN		 1534 if (codec && codec->probed)
1535 soc_remove_codec(codec);
2eea392d
JN		 1536}
1537
fdf0f54d
DP		 1538static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
1539 enum snd_soc_compress_type compress_type)
1540{
1541 int ret;
1542
1543 if (codec->cache_init)
1544 return 0;
1545
1546 /* override the compress_type if necessary */
1547 if (compress_type && codec->compress_type != compress_type)
1548 codec->compress_type = compress_type;
fdf0f54d
DP		 1549 ret = snd_soc_cache_init(codec);
1550 if (ret < 0) {
1551 dev_err(codec->dev, "Failed to set cache compression type: %d\n",
1552 ret);
1553 return ret;
1554 }
1555 codec->cache_init = 1;
1556 return 0;
1557}
1558
b19e6e7b 1559static int snd_soc_instantiate_card(struct snd_soc_card *card)
f0fba2ad 1560{
fdf0f54d
DP		 1561 struct snd_soc_codec *codec;
1562 struct snd_soc_codec_conf *codec_conf;
1563 enum snd_soc_compress_type compress_type;
75d9ac46 1564 struct snd_soc_dai_link *dai_link;
f04209a7 1565 int ret, i, order, dai_fmt;
fe3e78e0 1566
01b9d99a 1567 mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
dbe21408 1568
f0fba2ad 1569 /* bind DAIs */
b19e6e7b
MB		 1570 for (i = 0; i < card->num_links; i++) {
1571 ret = soc_bind_dai_link(card, i);
1572 if (ret != 0)
1573 goto base_error;
1574 }
fe3e78e0 1575
b19e6e7b
MB		 1576 /* check aux_devs too */
1577 for (i = 0; i < card->num_aux_devs; i++) {
1578 ret = soc_check_aux_dev(card, i);
1579 if (ret != 0)
1580 goto base_error;
f0fba2ad 1581 }
435c5e25 1582
fdf0f54d
DP		 1583 /* initialize the register cache for each available codec */
1584 list_for_each_entry(codec, &codec_list, list) {
1585 if (codec->cache_init)
1586 continue;
861f2faf
DP		 1587 /* by default we don't override the compress_type */
1588 compress_type = 0;
fdf0f54d
DP		 1589 /* check to see if we need to override the compress_type */
1590 for (i = 0; i < card->num_configs; ++i) {
1591 codec_conf = &card->codec_conf[i];
1592 if (!strcmp(codec->name, codec_conf->dev_name)) {
1593 compress_type = codec_conf->compress_type;
1594 if (compress_type && compress_type
1595 != codec->compress_type)
1596 break;
1597 }
1598 }
fdf0f54d 1599 ret = snd_soc_init_codec_cache(codec, compress_type);
b19e6e7b
MB		 1600 if (ret < 0)
1601 goto base_error;
fdf0f54d
DP		 1602 }
1603
f0fba2ad
LG		 1604 /* card bind complete so register a sound card */
1605 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1606 card->owner, 0, &card->snd_card);
1607 if (ret < 0) {
0837fc62
FE		 1608 pr_err("asoc: can't create sound card for card %s: %d\n",
1609 card->name, ret);
b19e6e7b 1610 goto base_error;
f0fba2ad
LG		 1611 }
1612 card->snd_card->dev = card->dev;
1613
e37a4970
MB		 1614 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1615 card->dapm.dev = card->dev;
1616 card->dapm.card = card;
1617 list_add(&card->dapm.list, &card->dapm_list);
1618
d5d1e0be
LPC		 1619#ifdef CONFIG_DEBUG_FS
1620 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1621#endif
1622
88ee1c61 1623#ifdef CONFIG_PM_SLEEP
f0fba2ad
LG		 1624 /* deferred resume work */
1625 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
1626#endif
db2a4165 1627
9a841ebb
MB		 1628 if (card->dapm_widgets)
1629 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1630 card->num_dapm_widgets);
1631
f0fba2ad
LG		 1632 /* initialise the sound card only once */
1633 if (card->probe) {
e7361ec4 1634 ret = card->probe(card);
f0fba2ad
LG		 1635 if (ret < 0)
1636 goto card_probe_error;
1637 }
fe3e78e0 1638
62ae68fa 1639 /* probe all components used by DAI links on this card */
0168bf0d
LG		 1640 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1641 order++) {
1642 for (i = 0; i < card->num_links; i++) {
62ae68fa 1643 ret = soc_probe_link_components(card, i, order);
0168bf0d
LG		 1644 if (ret < 0) {
1645 pr_err("asoc: failed to instantiate card %s: %d\n",
62ae68fa
SW		 1646 card->name, ret);
1647 goto probe_dai_err;
1648 }
1649 }
1650 }
1651
1652 /* probe all DAI links on this card */
1653 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1654 order++) {
1655 for (i = 0; i < card->num_links; i++) {
1656 ret = soc_probe_link_dais(card, i, order);
1657 if (ret < 0) {
1658 pr_err("asoc: failed to instantiate card %s: %d\n",
1659 card->name, ret);
0168bf0d
LG		 1660 goto probe_dai_err;
1661 }
f0fba2ad
LG		 1662 }
1663 }
db2a4165 1664
2eea392d
JN		 1665 for (i = 0; i < card->num_aux_devs; i++) {
1666 ret = soc_probe_aux_dev(card, i);
1667 if (ret < 0) {
1668 pr_err("asoc: failed to add auxiliary devices %s: %d\n",
1669 card->name, ret);
1670 goto probe_aux_dev_err;
1671 }
1672 }
1673
888df395
MB		 1674 snd_soc_dapm_link_dai_widgets(card);
1675
b7af1daf 1676 if (card->controls)
022658be 1677 snd_soc_add_card_controls(card, card->controls, card->num_controls);
b7af1daf 1678
b8ad29de
MB		 1679 if (card->dapm_routes)
1680 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1681 card->num_dapm_routes);
1682
b90d2f90
MB		 1683 snd_soc_dapm_new_widgets(&card->dapm);
1684
75d9ac46
MB		 1685 for (i = 0; i < card->num_links; i++) {
1686 dai_link = &card->dai_link[i];
f04209a7 1687 dai_fmt = dai_link->dai_fmt;
75d9ac46 1688
f04209a7 1689 if (dai_fmt) {
75d9ac46 1690 ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai,
f04209a7 1691 dai_fmt);
5e4ba569 1692 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46
MB		 1693 dev_warn(card->rtd[i].codec_dai->dev,
1694 "Failed to set DAI format: %d\n",
1695 ret);
f04209a7
MB		 1696 }
1697
1698 /* If this is a regular CPU link there will be a platform */
fe33d4c5
SW		 1699 if (dai_fmt &&
1700 (dai_link->platform_name || dai_link->platform_of_node)) {
f04209a7
MB		 1701 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1702 dai_fmt);
1703 if (ret != 0 && ret != -ENOTSUPP)
1704 dev_warn(card->rtd[i].cpu_dai->dev,
1705 "Failed to set DAI format: %d\n",
1706 ret);
1707 } else if (dai_fmt) {
1708 /* Flip the polarity for the "CPU" end */
1709 dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
1710 switch (dai_link->dai_fmt &
1711 SND_SOC_DAIFMT_MASTER_MASK) {
1712 case SND_SOC_DAIFMT_CBM_CFM:
1713 dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
1714 break;
1715 case SND_SOC_DAIFMT_CBM_CFS:
1716 dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
1717 break;
1718 case SND_SOC_DAIFMT_CBS_CFM:
1719 dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
1720 break;
1721 case SND_SOC_DAIFMT_CBS_CFS:
1722 dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1723 break;
1724 }
75d9ac46
MB		 1725
1726 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
f04209a7 1727 dai_fmt);
5e4ba569 1728 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46
MB		 1729 dev_warn(card->rtd[i].cpu_dai->dev,
1730 "Failed to set DAI format: %d\n",
1731 ret);
1732 }
1733 }
1734
f0fba2ad 1735 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
f0fba2ad 1736 "%s", card->name);
22de71ba
LG		 1737 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1738 "%s", card->long_name ? card->long_name : card->name);
f0e8ed85
MB		 1739 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1740 "%s", card->driver_name ? card->driver_name : card->name);
1741 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1742 switch (card->snd_card->driver[i]) {
1743 case '_':
1744 case '-':
1745 case '\0':
1746 break;
1747 default:
1748 if (!isalnum(card->snd_card->driver[i]))
1749 card->snd_card->driver[i] = '_';
1750 break;
1751 }
1752 }
f0fba2ad 1753
28e9ad92
MB		 1754 if (card->late_probe) {
1755 ret = card->late_probe(card);
1756 if (ret < 0) {
1757 dev_err(card->dev, "%s late_probe() failed: %d\n",
1758 card->name, ret);
1759 goto probe_aux_dev_err;
1760 }
1761 }
1762
2dc00213
MB		 1763 snd_soc_dapm_new_widgets(&card->dapm);
1764
1633281b 1765 if (card->fully_routed)
b05d8dc1 1766 list_for_each_entry(codec, &card->codec_dev_list, card_list)
1633281b
SW		 1767 snd_soc_dapm_auto_nc_codec_pins(codec);
1768
f0fba2ad
LG		 1769 ret = snd_card_register(card->snd_card);
1770 if (ret < 0) {
0837fc62
FE		 1771 pr_err("asoc: failed to register soundcard for %s: %d\n",
1772 card->name, ret);
6b3ed785 1773 goto probe_aux_dev_err;
db2a4165
FM		 1774 }
1775
f0fba2ad
LG		 1776#ifdef CONFIG_SND_SOC_AC97_BUS
1777 /* register any AC97 codecs */
1778 for (i = 0; i < card->num_rtd; i++) {
6b3ed785
AL		 1779 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1780 if (ret < 0) {
0837fc62
FE		 1781 pr_err("asoc: failed to register AC97 %s: %d\n",
1782 card->name, ret);
6b3ed785 1783 while (--i >= 0)
7d8316df 1784 soc_unregister_ac97_dai_link(card->rtd[i].codec);
6b3ed785 1785 goto probe_aux_dev_err;
f0fba2ad 1786 }
6b3ed785 1787 }
f0fba2ad
LG		 1788#endif
1789
1790 card->instantiated = 1;
4f4c0072 1791 snd_soc_dapm_sync(&card->dapm);
f0fba2ad 1792 mutex_unlock(&card->mutex);
b19e6e7b
MB		 1793
1794 return 0;
f0fba2ad 1795
2eea392d
JN		 1796probe_aux_dev_err:
1797 for (i = 0; i < card->num_aux_devs; i++)
1798 soc_remove_aux_dev(card, i);
1799
f0fba2ad 1800probe_dai_err:
0671fd8e 1801 soc_remove_dai_links(card);
f0fba2ad
LG		 1802
1803card_probe_error:
87506549 1804 if (card->remove)
e7361ec4 1805 card->remove(card);
f0fba2ad
LG		 1806
1807 snd_card_free(card->snd_card);
1808
b19e6e7b 1809base_error:
f0fba2ad 1810 mutex_unlock(&card->mutex);
db2a4165 1811
b19e6e7b 1812 return ret;
435c5e25
MB		 1813}
1814
1815/* probes a new socdev */
1816static int soc_probe(struct platform_device *pdev)
1817{
f0fba2ad 1818 struct snd_soc_card *card = platform_get_drvdata(pdev);
435c5e25 1819 int ret = 0;
435c5e25 1820
70a7ca34
VK		 1821 /*
1822 * no card, so machine driver should be registering card
1823 * we should not be here in that case so ret error
1824 */
1825 if (!card)
1826 return -EINVAL;
1827
fe4085e8
MB		 1828 dev_warn(&pdev->dev,
1829 "ASoC machine %s should use snd_soc_register_card()\n",
1830 card->name);
1831
435c5e25
MB		 1832 /* Bodge while we unpick instantiation */
1833 card->dev = &pdev->dev;
f0fba2ad 1834
435c5e25
MB		 1835 ret = snd_soc_register_card(card);
1836 if (ret != 0) {
1837 dev_err(&pdev->dev, "Failed to register card\n");
1838 return ret;
1839 }
1840
1841 return 0;
db2a4165
FM		 1842}
1843
b0e26485 1844static int soc_cleanup_card_resources(struct snd_soc_card *card)
db2a4165
FM		 1845{
1846 int i;
db2a4165 1847
b0e26485
VK		 1848 /* make sure any delayed work runs */
1849 for (i = 0; i < card->num_rtd; i++) {
1850 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
1851 flush_delayed_work_sync(&rtd->delayed_work);
1852 }
914dc182 1853
b0e26485
VK		 1854 /* remove auxiliary devices */
1855 for (i = 0; i < card->num_aux_devs; i++)
1856 soc_remove_aux_dev(card, i);
db2a4165 1857
b0e26485 1858 /* remove and free each DAI */
0671fd8e 1859 soc_remove_dai_links(card);
2eea392d 1860
b0e26485 1861 soc_cleanup_card_debugfs(card);
f0fba2ad 1862
b0e26485
VK		 1863 /* remove the card */
1864 if (card->remove)
e7361ec4 1865 card->remove(card);
a6052154 1866
0aaae527
LPC		 1867 snd_soc_dapm_free(&card->dapm);
1868
b0e26485
VK		 1869 snd_card_free(card->snd_card);
1870 return 0;
1871
1872}
1873
1874/* removes a socdev */
1875static int soc_remove(struct platform_device *pdev)
1876{
1877 struct snd_soc_card *card = platform_get_drvdata(pdev);
db2a4165 1878
c5af3a2e 1879 snd_soc_unregister_card(card);
db2a4165
FM		 1880 return 0;
1881}
1882
6f8ab4ac 1883int snd_soc_poweroff(struct device *dev)
51737470 1884{
6f8ab4ac 1885 struct snd_soc_card *card = dev_get_drvdata(dev);
f0fba2ad 1886 int i;
51737470
MB		 1887
1888 if (!card->instantiated)
416356fc 1889 return 0;
51737470
MB		 1890
1891 /* Flush out pmdown_time work - we actually do want to run it
1892 * now, we're shutting down so no imminent restart. */
f0fba2ad
LG		 1893 for (i = 0; i < card->num_rtd; i++) {
1894 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
5b84ba26 1895 flush_delayed_work_sync(&rtd->delayed_work);
f0fba2ad 1896 }
51737470 1897
f0fba2ad 1898 snd_soc_dapm_shutdown(card);
416356fc
MB		 1899
1900 return 0;
51737470 1901}
6f8ab4ac 1902EXPORT_SYMBOL_GPL(snd_soc_poweroff);
51737470 1903
6f8ab4ac 1904const struct dev_pm_ops snd_soc_pm_ops = {
b1dd5897
VK		 1905 .suspend = snd_soc_suspend,
1906 .resume = snd_soc_resume,
1907 .freeze = snd_soc_suspend,
1908 .thaw = snd_soc_resume,
6f8ab4ac 1909 .poweroff = snd_soc_poweroff,
b1dd5897 1910 .restore = snd_soc_resume,
416356fc 1911};
deb2607e 1912EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
416356fc 1913
db2a4165
FM		 1914/* ASoC platform driver */
1915static struct platform_driver soc_driver = {
1916 .driver = {
1917 .name = "soc-audio",
8b45a209 1918 .owner = THIS_MODULE,
6f8ab4ac 1919 .pm = &snd_soc_pm_ops,
db2a4165
FM		 1920 },
1921 .probe = soc_probe,
1922 .remove = soc_remove,
db2a4165
FM		 1923};
1924
096e49d5
MB		 1925/**
1926 * snd_soc_codec_volatile_register: Report if a register is volatile.
1927 *
1928 * @codec: CODEC to query.
1929 * @reg: Register to query.
1930 *
1931 * Boolean function indiciating if a CODEC register is volatile.
1932 */
181e055e
MB		 1933int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1934 unsigned int reg)
096e49d5 1935{
1500b7b5
DP		 1936 if (codec->volatile_register)
1937 return codec->volatile_register(codec, reg);
096e49d5
MB		 1938 else
1939 return 0;
1940}
1941EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1942
239c9706
DP		 1943/**
1944 * snd_soc_codec_readable_register: Report if a register is readable.
1945 *
1946 * @codec: CODEC to query.
1947 * @reg: Register to query.
1948 *
1949 * Boolean function indicating if a CODEC register is readable.
1950 */
1951int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
1952 unsigned int reg)
1953{
1954 if (codec->readable_register)
1955 return codec->readable_register(codec, reg);
1956 else
63fa0a28 1957 return 1;
239c9706
DP		 1958}
1959EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
1960
1961/**
1962 * snd_soc_codec_writable_register: Report if a register is writable.
1963 *
1964 * @codec: CODEC to query.
1965 * @reg: Register to query.
1966 *
1967 * Boolean function indicating if a CODEC register is writable.
1968 */
1969int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
1970 unsigned int reg)
1971{
1972 if (codec->writable_register)
1973 return codec->writable_register(codec, reg);
1974 else
63fa0a28 1975 return 1;
239c9706
DP		 1976}
1977EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
1978
f1442bc1
LG		 1979int snd_soc_platform_read(struct snd_soc_platform *platform,
1980 unsigned int reg)
1981{
1982 unsigned int ret;
1983
1984 if (!platform->driver->read) {
1985 dev_err(platform->dev, "platform has no read back\n");
1986 return -1;
1987 }
1988
1989 ret = platform->driver->read(platform, reg);
1990 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
a82ce2ae 1991 trace_snd_soc_preg_read(platform, reg, ret);
f1442bc1
LG		 1992
1993 return ret;
1994}
1995EXPORT_SYMBOL_GPL(snd_soc_platform_read);
1996
1997int snd_soc_platform_write(struct snd_soc_platform *platform,
1998 unsigned int reg, unsigned int val)
1999{
2000 if (!platform->driver->write) {
2001 dev_err(platform->dev, "platform has no write back\n");
2002 return -1;
2003 }
2004
2005 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
a82ce2ae 2006 trace_snd_soc_preg_write(platform, reg, val);
f1442bc1
LG		 2007 return platform->driver->write(platform, reg, val);
2008}
2009EXPORT_SYMBOL_GPL(snd_soc_platform_write);
2010
db2a4165
FM		 2011/**
2012 * snd_soc_new_ac97_codec - initailise AC97 device
2013 * @codec: audio codec
2014 * @ops: AC97 bus operations
2015 * @num: AC97 codec number
2016 *
2017 * Initialises AC97 codec resources for use by ad-hoc devices only.
2018 */
2019int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
2020 struct snd_ac97_bus_ops *ops, int num)
2021{
2022 mutex_lock(&codec->mutex);
2023
2024 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
2025 if (codec->ac97 == NULL) {
2026 mutex_unlock(&codec->mutex);
2027 return -ENOMEM;
2028 }
2029
2030 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
2031 if (codec->ac97->bus == NULL) {
2032 kfree(codec->ac97);
2033 codec->ac97 = NULL;
2034 mutex_unlock(&codec->mutex);
2035 return -ENOMEM;
2036 }
2037
2038 codec->ac97->bus->ops = ops;
2039 codec->ac97->num = num;
0562f788
MW		 2040
2041 /*
2042 * Mark the AC97 device to be created by us. This way we ensure that the
2043 * device will be registered with the device subsystem later on.
2044 */
2045 codec->ac97_created = 1;
2046
db2a4165
FM		 2047 mutex_unlock(&codec->mutex);
2048 return 0;
2049}
2050EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
2051
2052/**
2053 * snd_soc_free_ac97_codec - free AC97 codec device
2054 * @codec: audio codec
2055 *
2056 * Frees AC97 codec device resources.
2057 */
2058void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
2059{
2060 mutex_lock(&codec->mutex);
f0fba2ad
LG		 2061#ifdef CONFIG_SND_SOC_AC97_BUS
2062 soc_unregister_ac97_dai_link(codec);
2063#endif
db2a4165
FM		 2064 kfree(codec->ac97->bus);
2065 kfree(codec->ac97);
2066 codec->ac97 = NULL;
0562f788 2067 codec->ac97_created = 0;
db2a4165
FM		 2068 mutex_unlock(&codec->mutex);
2069}
2070EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
2071
c3753707
MB		 2072unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
2073{
2074 unsigned int ret;
2075
c3acec26 2076 ret = codec->read(codec, reg);
c3753707 2077 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
a8b1d34f 2078 trace_snd_soc_reg_read(codec, reg, ret);
c3753707
MB		 2079
2080 return ret;
2081}
2082EXPORT_SYMBOL_GPL(snd_soc_read);
2083
2084unsigned int snd_soc_write(struct snd_soc_codec *codec,
2085 unsigned int reg, unsigned int val)
2086{
2087 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
a8b1d34f 2088 trace_snd_soc_reg_write(codec, reg, val);
c3acec26 2089 return codec->write(codec, reg, val);
c3753707
MB		 2090}
2091EXPORT_SYMBOL_GPL(snd_soc_write);
2092
5fb609d4
DP		 2093unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
2094 unsigned int reg, const void *data, size_t len)
2095{
2096 return codec->bulk_write_raw(codec, reg, data, len);
2097}
2098EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw);
2099
db2a4165
FM		 2100/**
2101 * snd_soc_update_bits - update codec register bits
2102 * @codec: audio codec
2103 * @reg: codec register
2104 * @mask: register mask
2105 * @value: new value
2106 *
2107 * Writes new register value.
2108 *
180c329d 2109 * Returns 1 for change, 0 for no change, or negative error code.
db2a4165
FM		 2110 */
2111int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2112 unsigned int mask, unsigned int value)
db2a4165 2113{
8a713da8 2114 bool change;
46f5822f 2115 unsigned int old, new;
180c329d
TT		 2116 int ret;
2117
8a713da8
MB		 2118 if (codec->using_regmap) {
2119 ret = regmap_update_bits_check(codec->control_data, reg,
2120 mask, value, &change);
2121 } else {
2122 ret = snd_soc_read(codec, reg);
180c329d
TT		 2123 if (ret < 0)
2124 return ret;
8a713da8
MB		 2125
2126 old = ret;
2127 new = (old & ~mask) | (value & mask);
2128 change = old != new;
2129 if (change)
2130 ret = snd_soc_write(codec, reg, new);
180c329d 2131 }
db2a4165 2132
8a713da8
MB		 2133 if (ret < 0)
2134 return ret;
2135
db2a4165
FM		 2136 return change;
2137}
2138EXPORT_SYMBOL_GPL(snd_soc_update_bits);
2139
6c508c62
EN		 2140/**
2141 * snd_soc_update_bits_locked - update codec register bits
2142 * @codec: audio codec
2143 * @reg: codec register
2144 * @mask: register mask
2145 * @value: new value
2146 *
2147 * Writes new register value, and takes the codec mutex.
2148 *
2149 * Returns 1 for change else 0.
2150 */
dd1b3d53
MB		 2151int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
2152 unsigned short reg, unsigned int mask,
2153 unsigned int value)
6c508c62
EN		 2154{
2155 int change;
2156
2157 mutex_lock(&codec->mutex);
2158 change = snd_soc_update_bits(codec, reg, mask, value);
2159 mutex_unlock(&codec->mutex);
2160
2161 return change;
2162}
dd1b3d53 2163EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
6c508c62 2164
db2a4165
FM		 2165/**
2166 * snd_soc_test_bits - test register for change
2167 * @codec: audio codec
2168 * @reg: codec register
2169 * @mask: register mask
2170 * @value: new value
2171 *
2172 * Tests a register with a new value and checks if the new value is
2173 * different from the old value.
2174 *
2175 * Returns 1 for change else 0.
2176 */
2177int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2178 unsigned int mask, unsigned int value)
db2a4165
FM		 2179{
2180 int change;
46f5822f 2181 unsigned int old, new;
db2a4165 2182
db2a4165
FM		 2183 old = snd_soc_read(codec, reg);
2184 new = (old & ~mask) | value;
2185 change = old != new;
db2a4165
FM		 2186
2187 return change;
2188}
2189EXPORT_SYMBOL_GPL(snd_soc_test_bits);
2190
db2a4165
FM		 2191/**
2192 * snd_soc_set_runtime_hwparams - set the runtime hardware parameters
2193 * @substream: the pcm substream
2194 * @hw: the hardware parameters
2195 *
2196 * Sets the substream runtime hardware parameters.
2197 */
2198int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
2199 const struct snd_pcm_hardware *hw)
2200{
2201 struct snd_pcm_runtime *runtime = substream->runtime;
2202 runtime->hw.info = hw->info;
2203 runtime->hw.formats = hw->formats;
2204 runtime->hw.period_bytes_min = hw->period_bytes_min;
2205 runtime->hw.period_bytes_max = hw->period_bytes_max;
2206 runtime->hw.periods_min = hw->periods_min;
2207 runtime->hw.periods_max = hw->periods_max;
2208 runtime->hw.buffer_bytes_max = hw->buffer_bytes_max;
2209 runtime->hw.fifo_size = hw->fifo_size;
2210 return 0;
2211}
2212EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams);
2213
2214/**
2215 * snd_soc_cnew - create new control
2216 * @_template: control template
2217 * @data: control private data
ac11a2b3 2218 * @long_name: control long name
efb7ac3f 2219 * @prefix: control name prefix
db2a4165
FM		 2220 *
2221 * Create a new mixer control from a template control.
2222 *
2223 * Returns 0 for success, else error.
2224 */
2225struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
3056557f 2226 void *data, const char *long_name,
efb7ac3f 2227 const char *prefix)
db2a4165
FM		 2228{
2229 struct snd_kcontrol_new template;
efb7ac3f
MB		 2230 struct snd_kcontrol *kcontrol;
2231 char *name = NULL;
2232 int name_len;
db2a4165
FM		 2233
2234 memcpy(&template, _template, sizeof(template));
db2a4165
FM		 2235 template.index = 0;
2236
efb7ac3f
MB		 2237 if (!long_name)
2238 long_name = template.name;
2239
2240 if (prefix) {
2241 name_len = strlen(long_name) + strlen(prefix) + 2;
57cf9d45 2242 name = kmalloc(name_len, GFP_KERNEL);
efb7ac3f
MB		 2243 if (!name)
2244 return NULL;
2245
2246 snprintf(name, name_len, "%s %s", prefix, long_name);
2247
2248 template.name = name;
2249 } else {
2250 template.name = long_name;
2251 }
2252
2253 kcontrol = snd_ctl_new1(&template, data);
2254
2255 kfree(name);
2256
2257 return kcontrol;
db2a4165
FM		 2258}
2259EXPORT_SYMBOL_GPL(snd_soc_cnew);
2260
022658be
LG		 2261static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2262 const struct snd_kcontrol_new *controls, int num_controls,
2263 const char *prefix, void *data)
2264{
2265 int err, i;
2266
2267 for (i = 0; i < num_controls; i++) {
2268 const struct snd_kcontrol_new *control = &controls[i];
2269 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2270 control->name, prefix));
2271 if (err < 0) {
2272 dev_err(dev, "Failed to add %s: %d\n", control->name, err);
2273 return err;
2274 }
2275 }
2276
2277 return 0;
2278}
2279
3e8e1952 2280/**
022658be
LG		 2281 * snd_soc_add_codec_controls - add an array of controls to a codec.
2282 * Convenience function to add a list of controls. Many codecs were
3e8e1952
IM		 2283 * duplicating this code.
2284 *
2285 * @codec: codec to add controls to
2286 * @controls: array of controls to add
2287 * @num_controls: number of elements in the array
2288 *
2289 * Return 0 for success, else error.
2290 */
022658be 2291int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
3e8e1952
IM		 2292 const struct snd_kcontrol_new *controls, int num_controls)
2293{
f0fba2ad 2294 struct snd_card *card = codec->card->snd_card;
3e8e1952 2295
022658be
LG		 2296 return snd_soc_add_controls(card, codec->dev, controls, num_controls,
2297 codec->name_prefix, codec);
3e8e1952 2298}
022658be 2299EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
3e8e1952 2300
a491a5c8
LG		 2301/**
2302 * snd_soc_add_platform_controls - add an array of controls to a platform.
022658be 2303 * Convenience function to add a list of controls.
a491a5c8
LG		 2304 *
2305 * @platform: platform to add controls to
2306 * @controls: array of controls to add
2307 * @num_controls: number of elements in the array
2308 *
2309 * Return 0 for success, else error.
2310 */
2311int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
2312 const struct snd_kcontrol_new *controls, int num_controls)
2313{
2314 struct snd_card *card = platform->card->snd_card;
a491a5c8 2315
022658be
LG		 2316 return snd_soc_add_controls(card, platform->dev, controls, num_controls,
2317 NULL, platform);
a491a5c8
LG		 2318}
2319EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2320
022658be
LG		 2321/**
2322 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2323 * Convenience function to add a list of controls.
2324 *
2325 * @soc_card: SoC card to add controls to
2326 * @controls: array of controls to add
2327 * @num_controls: number of elements in the array
2328 *
2329 * Return 0 for success, else error.
2330 */
2331int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2332 const struct snd_kcontrol_new *controls, int num_controls)
2333{
2334 struct snd_card *card = soc_card->snd_card;
2335
2336 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2337 NULL, soc_card);
2338}
2339EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2340
2341/**
2342 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2343 * Convienience function to add a list of controls.
2344 *
2345 * @dai: DAI to add controls to
2346 * @controls: array of controls to add
2347 * @num_controls: number of elements in the array
2348 *
2349 * Return 0 for success, else error.
2350 */
2351int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2352 const struct snd_kcontrol_new *controls, int num_controls)
2353{
2354 struct snd_card *card = dai->card->snd_card;
2355
2356 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2357 NULL, dai);
2358}
2359EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2360
db2a4165
FM		 2361/**
2362 * snd_soc_info_enum_double - enumerated double mixer info callback
2363 * @kcontrol: mixer control
2364 * @uinfo: control element information
2365 *
2366 * Callback to provide information about a double enumerated
2367 * mixer control.
2368 *
2369 * Returns 0 for success.
2370 */
2371int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2372 struct snd_ctl_elem_info *uinfo)
2373{
2374 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2375
2376 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2377 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
f8ba0b7b 2378 uinfo->value.enumerated.items = e->max;
db2a4165 2379
f8ba0b7b
JS		 2380 if (uinfo->value.enumerated.item > e->max - 1)
2381 uinfo->value.enumerated.item = e->max - 1;
db2a4165
FM		 2382 strcpy(uinfo->value.enumerated.name,
2383 e->texts[uinfo->value.enumerated.item]);
2384 return 0;
2385}
2386EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2387
2388/**
2389 * snd_soc_get_enum_double - enumerated double mixer get callback
2390 * @kcontrol: mixer control
ac11a2b3 2391 * @ucontrol: control element information
db2a4165
FM		 2392 *
2393 * Callback to get the value of a double enumerated mixer.
2394 *
2395 * Returns 0 for success.
2396 */
2397int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2398 struct snd_ctl_elem_value *ucontrol)
2399{
2400 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2401 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2402 unsigned int val, bitmask;
db2a4165 2403
f8ba0b7b 2404 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
db2a4165
FM		 2405 ;
2406 val = snd_soc_read(codec, e->reg);
3ff3f64b
MB		 2407 ucontrol->value.enumerated.item[0]
2408 = (val >> e->shift_l) & (bitmask - 1);
db2a4165
FM		 2409 if (e->shift_l != e->shift_r)
2410 ucontrol->value.enumerated.item[1] =
2411 (val >> e->shift_r) & (bitmask - 1);
2412
2413 return 0;
2414}
2415EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2416
2417/**
2418 * snd_soc_put_enum_double - enumerated double mixer put callback
2419 * @kcontrol: mixer control
ac11a2b3 2420 * @ucontrol: control element information
db2a4165
FM		 2421 *
2422 * Callback to set the value of a double enumerated mixer.
2423 *
2424 * Returns 0 for success.
2425 */
2426int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2427 struct snd_ctl_elem_value *ucontrol)
2428{
2429 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2430 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2431 unsigned int val;
2432 unsigned int mask, bitmask;
db2a4165 2433
f8ba0b7b 2434 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
db2a4165 2435 ;
f8ba0b7b 2436 if (ucontrol->value.enumerated.item[0] > e->max - 1)
db2a4165
FM		 2437 return -EINVAL;
2438 val = ucontrol->value.enumerated.item[0] << e->shift_l;
2439 mask = (bitmask - 1) << e->shift_l;
2440 if (e->shift_l != e->shift_r) {
f8ba0b7b 2441 if (ucontrol->value.enumerated.item[1] > e->max - 1)
db2a4165
FM		 2442 return -EINVAL;
2443 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
2444 mask |= (bitmask - 1) << e->shift_r;
2445 }
2446
6c508c62 2447 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
db2a4165
FM		 2448}
2449EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2450
2e72f8e3
PU		 2451/**
2452 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2453 * @kcontrol: mixer control
2454 * @ucontrol: control element information
2455 *
2456 * Callback to get the value of a double semi enumerated mixer.
2457 *
2458 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2459 * used for handling bitfield coded enumeration for example.
2460 *
2461 * Returns 0 for success.
2462 */
2463int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2464 struct snd_ctl_elem_value *ucontrol)
2465{
2466 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2467 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2468 unsigned int reg_val, val, mux;
2e72f8e3
PU		 2469
2470 reg_val = snd_soc_read(codec, e->reg);
2471 val = (reg_val >> e->shift_l) & e->mask;
2472 for (mux = 0; mux < e->max; mux++) {
2473 if (val == e->values[mux])
2474 break;
2475 }
2476 ucontrol->value.enumerated.item[0] = mux;
2477 if (e->shift_l != e->shift_r) {
2478 val = (reg_val >> e->shift_r) & e->mask;
2479 for (mux = 0; mux < e->max; mux++) {
2480 if (val == e->values[mux])
2481 break;
2482 }
2483 ucontrol->value.enumerated.item[1] = mux;
2484 }
2485
2486 return 0;
2487}
2488EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2489
2490/**
2491 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2492 * @kcontrol: mixer control
2493 * @ucontrol: control element information
2494 *
2495 * Callback to set the value of a double semi enumerated mixer.
2496 *
2497 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2498 * used for handling bitfield coded enumeration for example.
2499 *
2500 * Returns 0 for success.
2501 */
2502int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2503 struct snd_ctl_elem_value *ucontrol)
2504{
2505 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2506 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2507 unsigned int val;
2508 unsigned int mask;
2e72f8e3
PU		 2509
2510 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2511 return -EINVAL;
2512 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2513 mask = e->mask << e->shift_l;
2514 if (e->shift_l != e->shift_r) {
2515 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2516 return -EINVAL;
2517 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2518 mask |= e->mask << e->shift_r;
2519 }
2520
6c508c62 2521 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
2e72f8e3
PU		 2522}
2523EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2524
db2a4165
FM		 2525/**
2526 * snd_soc_info_enum_ext - external enumerated single mixer info callback
2527 * @kcontrol: mixer control
2528 * @uinfo: control element information
2529 *
2530 * Callback to provide information about an external enumerated
2531 * single mixer.
2532 *
2533 * Returns 0 for success.
2534 */
2535int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
2536 struct snd_ctl_elem_info *uinfo)
2537{
2538 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2539
2540 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2541 uinfo->count = 1;
f8ba0b7b 2542 uinfo->value.enumerated.items = e->max;
db2a4165 2543
f8ba0b7b
JS		 2544 if (uinfo->value.enumerated.item > e->max - 1)
2545 uinfo->value.enumerated.item = e->max - 1;
db2a4165
FM		 2546 strcpy(uinfo->value.enumerated.name,
2547 e->texts[uinfo->value.enumerated.item]);
2548 return 0;
2549}
2550EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext);
2551
2552/**
2553 * snd_soc_info_volsw_ext - external single mixer info callback
2554 * @kcontrol: mixer control
2555 * @uinfo: control element information
2556 *
2557 * Callback to provide information about a single external mixer control.
2558 *
2559 * Returns 0 for success.
2560 */
2561int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
2562 struct snd_ctl_elem_info *uinfo)
2563{
a7a4ac86
PZ		 2564 int max = kcontrol->private_value;
2565
fd5dfad9 2566 if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2567 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2568 else
2569 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
db2a4165 2570
db2a4165
FM		 2571 uinfo->count = 1;
2572 uinfo->value.integer.min = 0;
a7a4ac86 2573 uinfo->value.integer.max = max;
db2a4165
FM		 2574 return 0;
2575}
2576EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
2577
db2a4165
FM		 2578/**
2579 * snd_soc_info_volsw - single mixer info callback
2580 * @kcontrol: mixer control
2581 * @uinfo: control element information
2582 *
e8f5a103
PU		 2583 * Callback to provide information about a single mixer control, or a double
2584 * mixer control that spans 2 registers.
db2a4165
FM		 2585 *
2586 * Returns 0 for success.
2587 */
2588int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2589 struct snd_ctl_elem_info *uinfo)
2590{
4eaa9819
JS		 2591 struct soc_mixer_control *mc =
2592 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2593 int platform_max;
db2a4165 2594
d11bb4a9
PU		 2595 if (!mc->platform_max)
2596 mc->platform_max = mc->max;
2597 platform_max = mc->platform_max;
2598
2599 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2600 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2601 else
2602 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2603
e8f5a103 2604 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
db2a4165 2605 uinfo->value.integer.min = 0;
d11bb4a9 2606 uinfo->value.integer.max = platform_max;
db2a4165
FM		 2607 return 0;
2608}
2609EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2610
2611/**
2612 * snd_soc_get_volsw - single mixer get callback
2613 * @kcontrol: mixer control
ac11a2b3 2614 * @ucontrol: control element information
db2a4165 2615 *
f7915d99
PU		 2616 * Callback to get the value of a single mixer control, or a double mixer
2617 * control that spans 2 registers.
db2a4165
FM		 2618 *
2619 * Returns 0 for success.
2620 */
2621int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2622 struct snd_ctl_elem_value *ucontrol)
2623{
4eaa9819
JS		 2624 struct soc_mixer_control *mc =
2625 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2626 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2627 unsigned int reg = mc->reg;
f7915d99 2628 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2629 unsigned int shift = mc->shift;
2630 unsigned int rshift = mc->rshift;
4eaa9819 2631 int max = mc->max;
815ecf8d
JS		 2632 unsigned int mask = (1 << fls(max)) - 1;
2633 unsigned int invert = mc->invert;
db2a4165
FM		 2634
2635 ucontrol->value.integer.value[0] =
2636 (snd_soc_read(codec, reg) >> shift) & mask;
f7915d99 2637 if (invert)
db2a4165 2638 ucontrol->value.integer.value[0] =
a7a4ac86 2639 max - ucontrol->value.integer.value[0];
f7915d99
PU		 2640
2641 if (snd_soc_volsw_is_stereo(mc)) {
2642 if (reg == reg2)
2643 ucontrol->value.integer.value[1] =
2644 (snd_soc_read(codec, reg) >> rshift) & mask;
2645 else
2646 ucontrol->value.integer.value[1] =
2647 (snd_soc_read(codec, reg2) >> shift) & mask;
2648 if (invert)
db2a4165 2649 ucontrol->value.integer.value[1] =
a7a4ac86 2650 max - ucontrol->value.integer.value[1];
db2a4165
FM		 2651 }
2652
2653 return 0;
2654}
2655EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2656
2657/**
2658 * snd_soc_put_volsw - single mixer put callback
2659 * @kcontrol: mixer control
ac11a2b3 2660 * @ucontrol: control element information
db2a4165 2661 *
974815ba
PU		 2662 * Callback to set the value of a single mixer control, or a double mixer
2663 * control that spans 2 registers.
db2a4165
FM		 2664 *
2665 * Returns 0 for success.
2666 */
2667int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2668 struct snd_ctl_elem_value *ucontrol)
2669{
4eaa9819
JS		 2670 struct soc_mixer_control *mc =
2671 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2672 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2673 unsigned int reg = mc->reg;
974815ba 2674 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2675 unsigned int shift = mc->shift;
2676 unsigned int rshift = mc->rshift;
4eaa9819 2677 int max = mc->max;
815ecf8d
JS		 2678 unsigned int mask = (1 << fls(max)) - 1;
2679 unsigned int invert = mc->invert;
974815ba
PU		 2680 int err;
2681 bool type_2r = 0;
2682 unsigned int val2 = 0;
2683 unsigned int val, val_mask;
db2a4165
FM		 2684
2685 val = (ucontrol->value.integer.value[0] & mask);
2686 if (invert)
a7a4ac86 2687 val = max - val;
db2a4165
FM		 2688 val_mask = mask << shift;
2689 val = val << shift;
974815ba 2690 if (snd_soc_volsw_is_stereo(mc)) {
db2a4165
FM		 2691 val2 = (ucontrol->value.integer.value[1] & mask);
2692 if (invert)
a7a4ac86 2693 val2 = max - val2;
974815ba
PU		 2694 if (reg == reg2) {
2695 val_mask |= mask << rshift;
2696 val |= val2 << rshift;
2697 } else {
2698 val2 = val2 << shift;
2699 type_2r = 1;
2700 }
db2a4165 2701 }
6c508c62 2702 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
3ff3f64b 2703 if (err < 0)
db2a4165
FM		 2704 return err;
2705
974815ba
PU		 2706 if (type_2r)
2707 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
2708
db2a4165
FM		 2709 return err;
2710}
974815ba 2711EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
db2a4165 2712
1d99f243
BA		 2713/**
2714 * snd_soc_get_volsw_sx - single mixer get callback
2715 * @kcontrol: mixer control
2716 * @ucontrol: control element information
2717 *
2718 * Callback to get the value of a single mixer control, or a double mixer
2719 * control that spans 2 registers.
2720 *
2721 * Returns 0 for success.
2722 */
2723int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
2724 struct snd_ctl_elem_value *ucontrol)
2725{
2726 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2727 struct soc_mixer_control *mc =
2728 (struct soc_mixer_control *)kcontrol->private_value;
2729
2730 unsigned int reg = mc->reg;
2731 unsigned int reg2 = mc->rreg;
2732 unsigned int shift = mc->shift;
2733 unsigned int rshift = mc->rshift;
2734 int max = mc->max;
2735 int min = mc->min;
2736 int mask = (1 << (fls(min + max) - 1)) - 1;
2737
2738 ucontrol->value.integer.value[0] =
2739 ((snd_soc_read(codec, reg) >> shift) - min) & mask;
2740
2741 if (snd_soc_volsw_is_stereo(mc))
2742 ucontrol->value.integer.value[1] =
2743 ((snd_soc_read(codec, reg2) >> rshift) - min) & mask;
2744
2745 return 0;
2746}
2747EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
2748
2749/**
2750 * snd_soc_put_volsw_sx - double mixer set callback
2751 * @kcontrol: mixer control
2752 * @uinfo: control element information
2753 *
2754 * Callback to set the value of a double mixer control that spans 2 registers.
2755 *
2756 * Returns 0 for success.
2757 */
2758int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
2759 struct snd_ctl_elem_value *ucontrol)
2760{
2761 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2762 struct soc_mixer_control *mc =
2763 (struct soc_mixer_control *)kcontrol->private_value;
2764
2765 unsigned int reg = mc->reg;
2766 unsigned int reg2 = mc->rreg;
2767 unsigned int shift = mc->shift;
2768 unsigned int rshift = mc->rshift;
2769 int max = mc->max;
2770 int min = mc->min;
2771 int mask = (1 << (fls(min + max) - 1)) - 1;
27f1d759 2772 int err = 0;
1d99f243
BA		 2773 unsigned short val, val_mask, val2 = 0;
2774
2775 val_mask = mask << shift;
2776 val = (ucontrol->value.integer.value[0] + min) & mask;
2777 val = val << shift;
2778
2779 if (snd_soc_update_bits_locked(codec, reg, val_mask, val))
2780 return err;
2781
2782 if (snd_soc_volsw_is_stereo(mc)) {
2783 val_mask = mask << rshift;
2784 val2 = (ucontrol->value.integer.value[1] + min) & mask;
2785 val2 = val2 << rshift;
2786
2787 if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2))
2788 return err;
2789 }
2790 return 0;
2791}
2792EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
2793
e13ac2e9
MB		 2794/**
2795 * snd_soc_info_volsw_s8 - signed mixer info callback
2796 * @kcontrol: mixer control
2797 * @uinfo: control element information
2798 *
2799 * Callback to provide information about a signed mixer control.
2800 *
2801 * Returns 0 for success.
2802 */
2803int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2804 struct snd_ctl_elem_info *uinfo)
2805{
4eaa9819
JS		 2806 struct soc_mixer_control *mc =
2807 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2808 int platform_max;
4eaa9819 2809 int min = mc->min;
e13ac2e9 2810
d11bb4a9
PU		 2811 if (!mc->platform_max)
2812 mc->platform_max = mc->max;
2813 platform_max = mc->platform_max;
2814
e13ac2e9
MB		 2815 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2816 uinfo->count = 2;
2817 uinfo->value.integer.min = 0;
d11bb4a9 2818 uinfo->value.integer.max = platform_max - min;
e13ac2e9
MB		 2819 return 0;
2820}
2821EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2822
2823/**
2824 * snd_soc_get_volsw_s8 - signed mixer get callback
2825 * @kcontrol: mixer control
ac11a2b3 2826 * @ucontrol: control element information
e13ac2e9
MB		 2827 *
2828 * Callback to get the value of a signed mixer control.
2829 *
2830 * Returns 0 for success.
2831 */
2832int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2833 struct snd_ctl_elem_value *ucontrol)
2834{
4eaa9819
JS		 2835 struct soc_mixer_control *mc =
2836 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2837 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2838 unsigned int reg = mc->reg;
4eaa9819 2839 int min = mc->min;
e13ac2e9
MB		 2840 int val = snd_soc_read(codec, reg);
2841
2842 ucontrol->value.integer.value[0] =
2843 ((signed char)(val & 0xff))-min;
2844 ucontrol->value.integer.value[1] =
2845 ((signed char)((val >> 8) & 0xff))-min;
2846 return 0;
2847}
2848EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2849
2850/**
2851 * snd_soc_put_volsw_sgn - signed mixer put callback
2852 * @kcontrol: mixer control
ac11a2b3 2853 * @ucontrol: control element information
e13ac2e9
MB		 2854 *
2855 * Callback to set the value of a signed mixer control.
2856 *
2857 * Returns 0 for success.
2858 */
2859int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
2860 struct snd_ctl_elem_value *ucontrol)
2861{
4eaa9819
JS		 2862 struct soc_mixer_control *mc =
2863 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2864 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2865 unsigned int reg = mc->reg;
4eaa9819 2866 int min = mc->min;
46f5822f 2867 unsigned int val;
e13ac2e9
MB		 2868
2869 val = (ucontrol->value.integer.value[0]+min) & 0xff;
2870 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
2871
6c508c62 2872 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
e13ac2e9
MB		 2873}
2874EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
2875
6c9d8cf6
AT		 2876/**
2877 * snd_soc_info_volsw_range - single mixer info callback with range.
2878 * @kcontrol: mixer control
2879 * @uinfo: control element information
2880 *
2881 * Callback to provide information, within a range, about a single
2882 * mixer control.
2883 *
2884 * returns 0 for success.
2885 */
2886int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
2887 struct snd_ctl_elem_info *uinfo)
2888{
2889 struct soc_mixer_control *mc =
2890 (struct soc_mixer_control *)kcontrol->private_value;
2891 int platform_max;
2892 int min = mc->min;
2893
2894 if (!mc->platform_max)
2895 mc->platform_max = mc->max;
2896 platform_max = mc->platform_max;
2897
2898 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2899 uinfo->count = 1;
2900 uinfo->value.integer.min = 0;
2901 uinfo->value.integer.max = platform_max - min;
2902
2903 return 0;
2904}
2905EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
2906
2907/**
2908 * snd_soc_put_volsw_range - single mixer put value callback with range.
2909 * @kcontrol: mixer control
2910 * @ucontrol: control element information
2911 *
2912 * Callback to set the value, within a range, for a single mixer control.
2913 *
2914 * Returns 0 for success.
2915 */
2916int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
2917 struct snd_ctl_elem_value *ucontrol)
2918{
2919 struct soc_mixer_control *mc =
2920 (struct soc_mixer_control *)kcontrol->private_value;
2921 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2922 unsigned int reg = mc->reg;
2923 unsigned int shift = mc->shift;
2924 int min = mc->min;
2925 int max = mc->max;
2926 unsigned int mask = (1 << fls(max)) - 1;
2927 unsigned int invert = mc->invert;
2928 unsigned int val, val_mask;
2929
2930 val = ((ucontrol->value.integer.value[0] + min) & mask);
2931 if (invert)
2932 val = max - val;
2933 val_mask = mask << shift;
2934 val = val << shift;
2935
2936 return snd_soc_update_bits_locked(codec, reg, val_mask, val);
2937}
2938EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
2939
2940/**
2941 * snd_soc_get_volsw_range - single mixer get callback with range
2942 * @kcontrol: mixer control
2943 * @ucontrol: control element information
2944 *
2945 * Callback to get the value, within a range, of a single mixer control.
2946 *
2947 * Returns 0 for success.
2948 */
2949int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
2950 struct snd_ctl_elem_value *ucontrol)
2951{
2952 struct soc_mixer_control *mc =
2953 (struct soc_mixer_control *)kcontrol->private_value;
2954 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2955 unsigned int reg = mc->reg;
2956 unsigned int shift = mc->shift;
2957 int min = mc->min;
2958 int max = mc->max;
2959 unsigned int mask = (1 << fls(max)) - 1;
2960 unsigned int invert = mc->invert;
2961
2962 ucontrol->value.integer.value[0] =
2963 (snd_soc_read(codec, reg) >> shift) & mask;
2964 if (invert)
2965 ucontrol->value.integer.value[0] =
2966 max - ucontrol->value.integer.value[0];
2967 ucontrol->value.integer.value[0] =
2968 ucontrol->value.integer.value[0] - min;
2969
2970 return 0;
2971}
2972EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
2973
637d3847
PU		 2974/**
2975 * snd_soc_limit_volume - Set new limit to an existing volume control.
2976 *
2977 * @codec: where to look for the control
2978 * @name: Name of the control
2979 * @max: new maximum limit
2980 *
2981 * Return 0 for success, else error.
2982 */
2983int snd_soc_limit_volume(struct snd_soc_codec *codec,
2984 const char *name, int max)
2985{
f0fba2ad 2986 struct snd_card *card = codec->card->snd_card;
637d3847
PU		 2987 struct snd_kcontrol *kctl;
2988 struct soc_mixer_control *mc;
2989 int found = 0;
2990 int ret = -EINVAL;
2991
2992 /* Sanity check for name and max */
2993 if (unlikely(!name || max <= 0))
2994 return -EINVAL;
2995
2996 list_for_each_entry(kctl, &card->controls, list) {
2997 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
2998 found = 1;
2999 break;
3000 }
3001 }
3002 if (found) {
3003 mc = (struct soc_mixer_control *)kctl->private_value;
3004 if (max <= mc->max) {
d11bb4a9 3005 mc->platform_max = max;
637d3847
PU		 3006 ret = 0;
3007 }
3008 }
3009 return ret;
3010}
3011EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
3012
71d08516
MB		 3013int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
3014 struct snd_ctl_elem_info *uinfo)
3015{
3016 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3017 struct soc_bytes *params = (void *)kcontrol->private_value;
3018
3019 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
3020 uinfo->count = params->num_regs * codec->val_bytes;
3021
3022 return 0;
3023}
3024EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
3025
3026int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
3027 struct snd_ctl_elem_value *ucontrol)
3028{
3029 struct soc_bytes *params = (void *)kcontrol->private_value;
3030 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3031 int ret;
3032
3033 if (codec->using_regmap)
3034 ret = regmap_raw_read(codec->control_data, params->base,
3035 ucontrol->value.bytes.data,
3036 params->num_regs * codec->val_bytes);
3037 else
3038 ret = -EINVAL;
3039
f831b055
MB		 3040 /* Hide any masked bytes to ensure consistent data reporting */
3041 if (ret == 0 && params->mask) {
3042 switch (codec->val_bytes) {
3043 case 1:
3044 ucontrol->value.bytes.data[0] &= ~params->mask;
3045 break;
3046 case 2:
3047 ((u16 *)(&ucontrol->value.bytes.data))[0]
3048 &= ~params->mask;
3049 break;
3050 case 4:
3051 ((u32 *)(&ucontrol->value.bytes.data))[0]
3052 &= ~params->mask;
3053 break;
3054 default:
3055 return -EINVAL;
3056 }
3057 }
3058
71d08516
MB		 3059 return ret;
3060}
3061EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
3062
3063int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
3064 struct snd_ctl_elem_value *ucontrol)
3065{
3066 struct soc_bytes *params = (void *)kcontrol->private_value;
3067 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
f831b055
MB		 3068 int ret, len;
3069 unsigned int val;
3070 void *data;
71d08516 3071
f831b055
MB		 3072 if (!codec->using_regmap)
3073 return -EINVAL;
3074
3075 data = ucontrol->value.bytes.data;
3076 len = params->num_regs * codec->val_bytes;
3077
3078 /*
3079 * If we've got a mask then we need to preserve the register
3080 * bits. We shouldn't modify the incoming data so take a
3081 * copy.
3082 */
3083 if (params->mask) {
3084 ret = regmap_read(codec->control_data, params->base, &val);
3085 if (ret != 0)
3086 return ret;
3087
3088 val &= params->mask;
3089
3090 data = kmemdup(data, len, GFP_KERNEL);
3091 if (!data)
3092 return -ENOMEM;
3093
3094 switch (codec->val_bytes) {
3095 case 1:
3096 ((u8 *)data)[0] &= ~params->mask;
3097 ((u8 *)data)[0] |= val;
3098 break;
3099 case 2:
3100 ((u16 *)data)[0] &= cpu_to_be16(~params->mask);
3101 ((u16 *)data)[0] |= cpu_to_be16(val);
3102 break;
3103 case 4:
3104 ((u32 *)data)[0] &= cpu_to_be32(~params->mask);
3105 ((u32 *)data)[0] |= cpu_to_be32(val);
3106 break;
3107 default:
3108 return -EINVAL;
3109 }
3110 }
3111
3112 ret = regmap_raw_write(codec->control_data, params->base,
3113 data, len);
3114
3115 if (params->mask)
3116 kfree(data);
71d08516
MB		 3117
3118 return ret;
3119}
3120EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
3121
4183eed2
KK		 3122/**
3123 * snd_soc_info_xr_sx - signed multi register info callback
3124 * @kcontrol: mreg control
3125 * @uinfo: control element information
3126 *
3127 * Callback to provide information of a control that can
3128 * span multiple codec registers which together
3129 * forms a single signed value in a MSB/LSB manner.
3130 *
3131 * Returns 0 for success.
3132 */
3133int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
3134 struct snd_ctl_elem_info *uinfo)
3135{
3136 struct soc_mreg_control *mc =
3137 (struct soc_mreg_control *)kcontrol->private_value;
3138 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3139 uinfo->count = 1;
3140 uinfo->value.integer.min = mc->min;
3141 uinfo->value.integer.max = mc->max;
3142
3143 return 0;
3144}
3145EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
3146
3147/**
3148 * snd_soc_get_xr_sx - signed multi register get callback
3149 * @kcontrol: mreg control
3150 * @ucontrol: control element information
3151 *
3152 * Callback to get the value of a control that can span
3153 * multiple codec registers which together forms a single
3154 * signed value in a MSB/LSB manner. The control supports
3155 * specifying total no of bits used to allow for bitfields
3156 * across the multiple codec registers.
3157 *
3158 * Returns 0 for success.
3159 */
3160int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
3161 struct snd_ctl_elem_value *ucontrol)
3162{
3163 struct soc_mreg_control *mc =
3164 (struct soc_mreg_control *)kcontrol->private_value;
3165 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3166 unsigned int regbase = mc->regbase;
3167 unsigned int regcount = mc->regcount;
3168 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3169 unsigned int regwmask = (1<<regwshift)-1;
3170 unsigned int invert = mc->invert;
3171 unsigned long mask = (1UL<<mc->nbits)-1;
3172 long min = mc->min;
3173 long max = mc->max;
3174 long val = 0;
3175 unsigned long regval;
3176 unsigned int i;
3177
3178 for (i = 0; i < regcount; i++) {
3179 regval = snd_soc_read(codec, regbase+i) & regwmask;
3180 val |= regval << (regwshift*(regcount-i-1));
3181 }
3182 val &= mask;
3183 if (min < 0 && val > max)
3184 val |= ~mask;
3185 if (invert)
3186 val = max - val;
3187 ucontrol->value.integer.value[0] = val;
3188
3189 return 0;
3190}
3191EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
3192
3193/**
3194 * snd_soc_put_xr_sx - signed multi register get callback
3195 * @kcontrol: mreg control
3196 * @ucontrol: control element information
3197 *
3198 * Callback to set the value of a control that can span
3199 * multiple codec registers which together forms a single
3200 * signed value in a MSB/LSB manner. The control supports
3201 * specifying total no of bits used to allow for bitfields
3202 * across the multiple codec registers.
3203 *
3204 * Returns 0 for success.
3205 */
3206int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
3207 struct snd_ctl_elem_value *ucontrol)
3208{
3209 struct soc_mreg_control *mc =
3210 (struct soc_mreg_control *)kcontrol->private_value;
3211 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3212 unsigned int regbase = mc->regbase;
3213 unsigned int regcount = mc->regcount;
3214 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3215 unsigned int regwmask = (1<<regwshift)-1;
3216 unsigned int invert = mc->invert;
3217 unsigned long mask = (1UL<<mc->nbits)-1;
4183eed2
KK		 3218 long max = mc->max;
3219 long val = ucontrol->value.integer.value[0];
3220 unsigned int i, regval, regmask;
3221 int err;
3222
3223 if (invert)
3224 val = max - val;
3225 val &= mask;
3226 for (i = 0; i < regcount; i++) {
3227 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
3228 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
3229 err = snd_soc_update_bits_locked(codec, regbase+i,
3230 regmask, regval);
3231 if (err < 0)
3232 return err;
3233 }
3234
3235 return 0;
3236}
3237EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
3238
dd7b10b3
KK		 3239/**
3240 * snd_soc_get_strobe - strobe get callback
3241 * @kcontrol: mixer control
3242 * @ucontrol: control element information
3243 *
3244 * Callback get the value of a strobe mixer control.
3245 *
3246 * Returns 0 for success.
3247 */
3248int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
3249 struct snd_ctl_elem_value *ucontrol)
3250{
3251 struct soc_mixer_control *mc =
3252 (struct soc_mixer_control *)kcontrol->private_value;
3253 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3254 unsigned int reg = mc->reg;
3255 unsigned int shift = mc->shift;
3256 unsigned int mask = 1 << shift;
3257 unsigned int invert = mc->invert != 0;
3258 unsigned int val = snd_soc_read(codec, reg) & mask;
3259
3260 if (shift != 0 && val != 0)
3261 val = val >> shift;
3262 ucontrol->value.enumerated.item[0] = val ^ invert;
3263
3264 return 0;
3265}
3266EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
3267
3268/**
3269 * snd_soc_put_strobe - strobe put callback
3270 * @kcontrol: mixer control
3271 * @ucontrol: control element information
3272 *
3273 * Callback strobe a register bit to high then low (or the inverse)
3274 * in one pass of a single mixer enum control.
3275 *
3276 * Returns 1 for success.
3277 */
3278int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
3279 struct snd_ctl_elem_value *ucontrol)
3280{
3281 struct soc_mixer_control *mc =
3282 (struct soc_mixer_control *)kcontrol->private_value;
3283 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3284 unsigned int reg = mc->reg;
3285 unsigned int shift = mc->shift;
3286 unsigned int mask = 1 << shift;
3287 unsigned int invert = mc->invert != 0;
3288 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
3289 unsigned int val1 = (strobe ^ invert) ? mask : 0;
3290 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
3291 int err;
3292
3293 err = snd_soc_update_bits_locked(codec, reg, mask, val1);
3294 if (err < 0)
3295 return err;
3296
3297 err = snd_soc_update_bits_locked(codec, reg, mask, val2);
3298 return err;
3299}
3300EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
3301
8c6529db
LG		 3302/**
3303 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3304 * @dai: DAI
3305 * @clk_id: DAI specific clock ID
3306 * @freq: new clock frequency in Hz
3307 * @dir: new clock direction - input/output.
3308 *
3309 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3310 */
3311int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
3312 unsigned int freq, int dir)
3313{
f0fba2ad
LG		 3314 if (dai->driver && dai->driver->ops->set_sysclk)
3315 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
ec4ee52a 3316 else if (dai->codec && dai->codec->driver->set_sysclk)
da1c6ea6 3317 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
ec4ee52a 3318 freq, dir);
8c6529db
LG		 3319 else
3320 return -EINVAL;
3321}
3322EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
3323
ec4ee52a
MB		 3324/**
3325 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3326 * @codec: CODEC
3327 * @clk_id: DAI specific clock ID
da1c6ea6 3328 * @source: Source for the clock
ec4ee52a
MB		 3329 * @freq: new clock frequency in Hz
3330 * @dir: new clock direction - input/output.
3331 *
3332 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3333 */
3334int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
da1c6ea6 3335 int source, unsigned int freq, int dir)
ec4ee52a
MB		 3336{
3337 if (codec->driver->set_sysclk)
da1c6ea6
MB		 3338 return codec->driver->set_sysclk(codec, clk_id, source,
3339 freq, dir);
ec4ee52a
MB		 3340 else
3341 return -EINVAL;
3342}
3343EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
3344
8c6529db
LG		 3345/**
3346 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3347 * @dai: DAI
ac11a2b3 3348 * @div_id: DAI specific clock divider ID
8c6529db
LG		 3349 * @div: new clock divisor.
3350 *
3351 * Configures the clock dividers. This is used to derive the best DAI bit and
3352 * frame clocks from the system or master clock. It's best to set the DAI bit
3353 * and frame clocks as low as possible to save system power.
3354 */
3355int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
3356 int div_id, int div)
3357{
f0fba2ad
LG		 3358 if (dai->driver && dai->driver->ops->set_clkdiv)
3359 return dai->driver->ops->set_clkdiv(dai, div_id, div);
8c6529db
LG		 3360 else
3361 return -EINVAL;
3362}
3363EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
3364
3365/**
3366 * snd_soc_dai_set_pll - configure DAI PLL.
3367 * @dai: DAI
3368 * @pll_id: DAI specific PLL ID
85488037 3369 * @source: DAI specific source for the PLL
8c6529db
LG		 3370 * @freq_in: PLL input clock frequency in Hz
3371 * @freq_out: requested PLL output clock frequency in Hz
3372 *
3373 * Configures and enables PLL to generate output clock based on input clock.
3374 */
85488037
MB		 3375int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
3376 unsigned int freq_in, unsigned int freq_out)
8c6529db 3377{
f0fba2ad
LG		 3378 if (dai->driver && dai->driver->ops->set_pll)
3379 return dai->driver->ops->set_pll(dai, pll_id, source,
85488037 3380 freq_in, freq_out);
ec4ee52a
MB		 3381 else if (dai->codec && dai->codec->driver->set_pll)
3382 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
3383 freq_in, freq_out);
8c6529db
LG		 3384 else
3385 return -EINVAL;
3386}
3387EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
3388
ec4ee52a
MB		 3389/*
3390 * snd_soc_codec_set_pll - configure codec PLL.
3391 * @codec: CODEC
3392 * @pll_id: DAI specific PLL ID
3393 * @source: DAI specific source for the PLL
3394 * @freq_in: PLL input clock frequency in Hz
3395 * @freq_out: requested PLL output clock frequency in Hz
3396 *
3397 * Configures and enables PLL to generate output clock based on input clock.
3398 */
3399int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
3400 unsigned int freq_in, unsigned int freq_out)
3401{
3402 if (codec->driver->set_pll)
3403 return codec->driver->set_pll(codec, pll_id, source,
3404 freq_in, freq_out);
3405 else
3406 return -EINVAL;
3407}
3408EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
3409
8c6529db
LG		 3410/**
3411 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3412 * @dai: DAI
8c6529db
LG		 3413 * @fmt: SND_SOC_DAIFMT_ format value.
3414 *
3415 * Configures the DAI hardware format and clocking.
3416 */
3417int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
3418{
5e4ba569 3419 if (dai->driver == NULL)
8c6529db 3420 return -EINVAL;
5e4ba569
SG		 3421 if (dai->driver->ops->set_fmt == NULL)
3422 return -ENOTSUPP;
3423 return dai->driver->ops->set_fmt(dai, fmt);
8c6529db
LG		 3424}
3425EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
3426
3427/**
3428 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3429 * @dai: DAI
a5479e38
DR		 3430 * @tx_mask: bitmask representing active TX slots.
3431 * @rx_mask: bitmask representing active RX slots.
8c6529db 3432 * @slots: Number of slots in use.
a5479e38 3433 * @slot_width: Width in bits for each slot.
8c6529db
LG		 3434 *
3435 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3436 * specific.
3437 */
3438int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
a5479e38 3439 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
8c6529db 3440{
f0fba2ad
LG		 3441 if (dai->driver && dai->driver->ops->set_tdm_slot)
3442 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
a5479e38 3443 slots, slot_width);
8c6529db
LG		 3444 else
3445 return -EINVAL;
3446}
3447EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
3448
472df3cb
BS		 3449/**
3450 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3451 * @dai: DAI
3452 * @tx_num: how many TX channels
3453 * @tx_slot: pointer to an array which imply the TX slot number channel
3454 * 0~num-1 uses
3455 * @rx_num: how many RX channels
3456 * @rx_slot: pointer to an array which imply the RX slot number channel
3457 * 0~num-1 uses
3458 *
3459 * configure the relationship between channel number and TDM slot number.
3460 */
3461int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3462 unsigned int tx_num, unsigned int *tx_slot,
3463 unsigned int rx_num, unsigned int *rx_slot)
3464{
f0fba2ad
LG		 3465 if (dai->driver && dai->driver->ops->set_channel_map)
3466 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
472df3cb
BS		 3467 rx_num, rx_slot);
3468 else
3469 return -EINVAL;
3470}
3471EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3472
8c6529db
LG		 3473/**
3474 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3475 * @dai: DAI
3476 * @tristate: tristate enable
3477 *
3478 * Tristates the DAI so that others can use it.
3479 */
3480int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3481{
f0fba2ad
LG		 3482 if (dai->driver && dai->driver->ops->set_tristate)
3483 return dai->driver->ops->set_tristate(dai, tristate);
8c6529db
LG		 3484 else
3485 return -EINVAL;
3486}
3487EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3488
3489/**
3490 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3491 * @dai: DAI
3492 * @mute: mute enable
3493 *
3494 * Mutes the DAI DAC.
3495 */
3496int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
3497{
f0fba2ad
LG		 3498 if (dai->driver && dai->driver->ops->digital_mute)
3499 return dai->driver->ops->digital_mute(dai, mute);
8c6529db 3500 else
04570c62 3501 return -ENOTSUPP;
8c6529db
LG		 3502}
3503EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3504
c5af3a2e
MB		 3505/**
3506 * snd_soc_register_card - Register a card with the ASoC core
3507 *
ac11a2b3 3508 * @card: Card to register
c5af3a2e 3509 *
c5af3a2e 3510 */
70a7ca34 3511int snd_soc_register_card(struct snd_soc_card *card)
c5af3a2e 3512{
b19e6e7b 3513 int i, ret;
f0fba2ad 3514
c5af3a2e
MB		 3515 if (!card->name || !card->dev)
3516 return -EINVAL;
3517
5a504963
SW		 3518 for (i = 0; i < card->num_links; i++) {
3519 struct snd_soc_dai_link *link = &card->dai_link[i];
3520
3521 /*
3522 * Codec must be specified by 1 of name or OF node,
3523 * not both or neither.
3524 */
3525 if (!!link->codec_name == !!link->codec_of_node) {
3526 dev_err(card->dev,
3b09bb82
LG		 3527 "Neither/both codec name/of_node are set for %s\n",
3528 link->name);
5a504963
SW		 3529 return -EINVAL;
3530 }
bc92657a
SW		 3531 /* Codec DAI name must be specified */
3532 if (!link->codec_dai_name) {
3533 dev_err(card->dev, "codec_dai_name not set for %s\n",
3534 link->name);
3535 return -EINVAL;
3536 }
5a504963
SW		 3537
3538 /*
3539 * Platform may be specified by either name or OF node, but
3540 * can be left unspecified, and a dummy platform will be used.
3541 */
3542 if (link->platform_name && link->platform_of_node) {
3543 dev_err(card->dev,
3b09bb82 3544 "Both platform name/of_node are set for %s\n", link->name);
5a504963
SW		 3545 return -EINVAL;
3546 }
3547
3548 /*
bc92657a
SW		 3549 * CPU device may be specified by either name or OF node, but
3550 * can be left unspecified, and will be matched based on DAI
3551 * name alone..
3552 */
3553 if (link->cpu_name && link->cpu_of_node) {
3554 dev_err(card->dev,
3555 "Neither/both cpu name/of_node are set for %s\n",
3556 link->name);
3557 return -EINVAL;
3558 }
3559 /*
3560 * At least one of CPU DAI name or CPU device name/node must be
3561 * specified
5a504963 3562 */
bc92657a
SW		 3563 if (!link->cpu_dai_name &&
3564 !(link->cpu_name || link->cpu_of_node)) {
5a504963 3565 dev_err(card->dev,
bc92657a 3566 "Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
3b09bb82 3567 link->name);
5a504963
SW		 3568 return -EINVAL;
3569 }
3570 }
3571
ed77cc12
MB		 3572 dev_set_drvdata(card->dev, card);
3573
111c6419
SW		 3574 snd_soc_initialize_card_lists(card);
3575
150dd2f8
VK		 3576 soc_init_card_debugfs(card);
3577
181a6892
MB		 3578 card->rtd = devm_kzalloc(card->dev,
3579 sizeof(struct snd_soc_pcm_runtime) *
3580 (card->num_links + card->num_aux_devs),
3581 GFP_KERNEL);
f0fba2ad
LG		 3582 if (card->rtd == NULL)
3583 return -ENOMEM;
a7dbb603 3584 card->num_rtd = 0;
2eea392d 3585 card->rtd_aux = &card->rtd[card->num_links];
f0fba2ad
LG		 3586
3587 for (i = 0; i < card->num_links; i++)
3588 card->rtd[i].dai_link = &card->dai_link[i];
3589
c5af3a2e 3590 INIT_LIST_HEAD(&card->list);
db432b41 3591 INIT_LIST_HEAD(&card->dapm_dirty);
c5af3a2e 3592 card->instantiated = 0;
f0fba2ad 3593 mutex_init(&card->mutex);
a73fb2df 3594 mutex_init(&card->dapm_mutex);
c5af3a2e 3595
b19e6e7b
MB		 3596 ret = snd_soc_instantiate_card(card);
3597 if (ret != 0)
3598 soc_cleanup_card_debugfs(card);
c5af3a2e 3599
b19e6e7b 3600 return ret;
c5af3a2e 3601}
70a7ca34 3602EXPORT_SYMBOL_GPL(snd_soc_register_card);
c5af3a2e
MB		 3603
3604/**
3605 * snd_soc_unregister_card - Unregister a card with the ASoC core
3606 *
ac11a2b3 3607 * @card: Card to unregister
c5af3a2e 3608 *
c5af3a2e 3609 */
70a7ca34 3610int snd_soc_unregister_card(struct snd_soc_card *card)
c5af3a2e 3611{
b0e26485
VK		 3612 if (card->instantiated)
3613 soc_cleanup_card_resources(card);
c5af3a2e
MB		 3614 dev_dbg(card->dev, "Unregistered card '%s'\n", card->name);
3615
3616 return 0;
3617}
70a7ca34 3618EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
c5af3a2e 3619
f0fba2ad
LG		 3620/*
3621 * Simplify DAI link configuration by removing ".-1" from device names
3622 * and sanitizing names.
3623 */
0b9a214a 3624static char *fmt_single_name(struct device *dev, int *id)
f0fba2ad
LG		 3625{
3626 char *found, name[NAME_SIZE];
3627 int id1, id2;
3628
3629 if (dev_name(dev) == NULL)
3630 return NULL;
3631
58818a77 3632 strlcpy(name, dev_name(dev), NAME_SIZE);
f0fba2ad
LG		 3633
3634 /* are we a "%s.%d" name (platform and SPI components) */
3635 found = strstr(name, dev->driver->name);
3636 if (found) {
3637 /* get ID */
3638 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3639
3640 /* discard ID from name if ID == -1 */
3641 if (*id == -1)
3642 found[strlen(dev->driver->name)] = '\0';
3643 }
3644
3645 } else {
3646 /* I2C component devices are named "bus-addr" */
3647 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3648 char tmp[NAME_SIZE];
3649
3650 /* create unique ID number from I2C addr and bus */
05899446 3651 *id = ((id1 & 0xffff) << 16) + id2;
f0fba2ad
LG		 3652
3653 /* sanitize component name for DAI link creation */
3654 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
58818a77 3655 strlcpy(name, tmp, NAME_SIZE);
f0fba2ad
LG		 3656 } else
3657 *id = 0;
3658 }
3659
3660 return kstrdup(name, GFP_KERNEL);
3661}
3662
3663/*
3664 * Simplify DAI link naming for single devices with multiple DAIs by removing
3665 * any ".-1" and using the DAI name (instead of device name).
3666 */
3667static inline char *fmt_multiple_name(struct device *dev,
3668 struct snd_soc_dai_driver *dai_drv)
3669{
3670 if (dai_drv->name == NULL) {
0837fc62 3671 pr_err("asoc: error - multiple DAI %s registered with no name\n",
f0fba2ad
LG		 3672 dev_name(dev));
3673 return NULL;
3674 }
3675
3676 return kstrdup(dai_drv->name, GFP_KERNEL);
3677}
3678
9115171a
MB		 3679/**
3680 * snd_soc_register_dai - Register a DAI with the ASoC core
3681 *
ac11a2b3 3682 * @dai: DAI to register
9115171a 3683 */
f0fba2ad
LG		 3684int snd_soc_register_dai(struct device *dev,
3685 struct snd_soc_dai_driver *dai_drv)
9115171a 3686{
054880fe 3687 struct snd_soc_codec *codec;
f0fba2ad
LG		 3688 struct snd_soc_dai *dai;
3689
3690 dev_dbg(dev, "dai register %s\n", dev_name(dev));
9115171a 3691
f0fba2ad
LG		 3692 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
3693 if (dai == NULL)
a7393623 3694 return -ENOMEM;
9115171a 3695
f0fba2ad
LG		 3696 /* create DAI component name */
3697 dai->name = fmt_single_name(dev, &dai->id);
3698 if (dai->name == NULL) {
3699 kfree(dai);
3700 return -ENOMEM;
3701 }
6335d055 3702
f0fba2ad
LG		 3703 dai->dev = dev;
3704 dai->driver = dai_drv;
be09ad90 3705 dai->dapm.dev = dev;
f0fba2ad
LG		 3706 if (!dai->driver->ops)
3707 dai->driver->ops = &null_dai_ops;
9115171a
MB		 3708
3709 mutex_lock(&client_mutex);
054880fe
MB		 3710
3711 list_for_each_entry(codec, &codec_list, list) {
3712 if (codec->dev == dev) {
3713 dev_dbg(dev, "Mapped DAI %s to CODEC %s\n",
3714 dai->name, codec->name);
3715 dai->codec = codec;
3716 break;
3717 }
3718 }
3719
9115171a 3720 list_add(&dai->list, &dai_list);
054880fe 3721
9115171a
MB		 3722 mutex_unlock(&client_mutex);
3723
3724 pr_debug("Registered DAI '%s'\n", dai->name);
3725
3726 return 0;
3727}
3728EXPORT_SYMBOL_GPL(snd_soc_register_dai);
3729
3730/**
3731 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3732 *
ac11a2b3 3733 * @dai: DAI to unregister
9115171a 3734 */
f0fba2ad 3735void snd_soc_unregister_dai(struct device *dev)
9115171a 3736{
f0fba2ad
LG		 3737 struct snd_soc_dai *dai;
3738
3739 list_for_each_entry(dai, &dai_list, list) {
3740 if (dev == dai->dev)
3741 goto found;
3742 }
3743 return;
3744
3745found:
9115171a
MB		 3746 mutex_lock(&client_mutex);
3747 list_del(&dai->list);
3748 mutex_unlock(&client_mutex);
3749
3750 pr_debug("Unregistered DAI '%s'\n", dai->name);
f0fba2ad
LG		 3751 kfree(dai->name);
3752 kfree(dai);
9115171a
MB		 3753}
3754EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
3755
3756/**
3757 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3758 *
ac11a2b3
MB		 3759 * @dai: Array of DAIs to register
3760 * @count: Number of DAIs
9115171a 3761 */
f0fba2ad
LG		 3762int snd_soc_register_dais(struct device *dev,
3763 struct snd_soc_dai_driver *dai_drv, size_t count)
9115171a 3764{
054880fe 3765 struct snd_soc_codec *codec;
f0fba2ad
LG		 3766 struct snd_soc_dai *dai;
3767 int i, ret = 0;
3768
720ffa4c 3769 dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count);
9115171a
MB		 3770
3771 for (i = 0; i < count; i++) {
f0fba2ad
LG		 3772
3773 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
c46e0079
AL		 3774 if (dai == NULL) {
3775 ret = -ENOMEM;
3776 goto err;
3777 }
f0fba2ad
LG		 3778
3779 /* create DAI component name */
3780 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3781 if (dai->name == NULL) {
3782 kfree(dai);
3783 ret = -EINVAL;
9115171a 3784 goto err;
f0fba2ad
LG		 3785 }
3786
3787 dai->dev = dev;
f0fba2ad 3788 dai->driver = &dai_drv[i];
0f9141c9
MB		 3789 if (dai->driver->id)
3790 dai->id = dai->driver->id;
3791 else
3792 dai->id = i;
be09ad90 3793 dai->dapm.dev = dev;
f0fba2ad
LG		 3794 if (!dai->driver->ops)
3795 dai->driver->ops = &null_dai_ops;
3796
3797 mutex_lock(&client_mutex);
054880fe
MB		 3798
3799 list_for_each_entry(codec, &codec_list, list) {
3800 if (codec->dev == dev) {
3801 dev_dbg(dev, "Mapped DAI %s to CODEC %s\n",
3802 dai->name, codec->name);
3803 dai->codec = codec;
3804 break;
3805 }
3806 }
3807
f0fba2ad 3808 list_add(&dai->list, &dai_list);
054880fe 3809
f0fba2ad
LG		 3810 mutex_unlock(&client_mutex);
3811
3812 pr_debug("Registered DAI '%s'\n", dai->name);
9115171a
MB		 3813 }
3814
3815 return 0;
3816
3817err:
3818 for (i--; i >= 0; i--)
f0fba2ad 3819 snd_soc_unregister_dai(dev);
9115171a
MB		 3820
3821 return ret;
3822}
3823EXPORT_SYMBOL_GPL(snd_soc_register_dais);
3824
3825/**
3826 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
3827 *
ac11a2b3
MB		 3828 * @dai: Array of DAIs to unregister
3829 * @count: Number of DAIs
9115171a 3830 */
f0fba2ad 3831void snd_soc_unregister_dais(struct device *dev, size_t count)
9115171a
MB		 3832{
3833 int i;
3834
3835 for (i = 0; i < count; i++)
f0fba2ad 3836 snd_soc_unregister_dai(dev);
9115171a
MB		 3837}
3838EXPORT_SYMBOL_GPL(snd_soc_unregister_dais);
3839
12a48a8c
MB		 3840/**
3841 * snd_soc_register_platform - Register a platform with the ASoC core
3842 *
ac11a2b3 3843 * @platform: platform to register
12a48a8c 3844 */
f0fba2ad
LG		 3845int snd_soc_register_platform(struct device *dev,
3846 struct snd_soc_platform_driver *platform_drv)
12a48a8c 3847{
f0fba2ad
LG		 3848 struct snd_soc_platform *platform;
3849
3850 dev_dbg(dev, "platform register %s\n", dev_name(dev));
3851
3852 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
3853 if (platform == NULL)
a7393623 3854 return -ENOMEM;
f0fba2ad
LG		 3855
3856 /* create platform component name */
3857 platform->name = fmt_single_name(dev, &platform->id);
3858 if (platform->name == NULL) {
3859 kfree(platform);
3860 return -ENOMEM;
3861 }
12a48a8c 3862
f0fba2ad
LG		 3863 platform->dev = dev;
3864 platform->driver = platform_drv;
b7950641
LG		 3865 platform->dapm.dev = dev;
3866 platform->dapm.platform = platform;
64a648c2 3867 platform->dapm.stream_event = platform_drv->stream_event;
cc22d37e 3868 mutex_init(&platform->mutex);
12a48a8c
MB		 3869
3870 mutex_lock(&client_mutex);
3871 list_add(&platform->list, &platform_list);
3872 mutex_unlock(&client_mutex);
3873
3874 pr_debug("Registered platform '%s'\n", platform->name);
3875
3876 return 0;
3877}
3878EXPORT_SYMBOL_GPL(snd_soc_register_platform);
3879
3880/**
3881 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
3882 *
ac11a2b3 3883 * @platform: platform to unregister
12a48a8c 3884 */
f0fba2ad 3885void snd_soc_unregister_platform(struct device *dev)
12a48a8c 3886{
f0fba2ad
LG		 3887 struct snd_soc_platform *platform;
3888
3889 list_for_each_entry(platform, &platform_list, list) {
3890 if (dev == platform->dev)
3891 goto found;
3892 }
3893 return;
3894
3895found:
12a48a8c
MB		 3896 mutex_lock(&client_mutex);
3897 list_del(&platform->list);
3898 mutex_unlock(&client_mutex);
3899
3900 pr_debug("Unregistered platform '%s'\n", platform->name);
f0fba2ad
LG		 3901 kfree(platform->name);
3902 kfree(platform);
12a48a8c
MB		 3903}
3904EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
3905
151ab22c
MB		 3906static u64 codec_format_map[] = {
3907 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
3908 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
3909 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
3910 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
3911 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
3912 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
3913 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3914 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3915 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
3916 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
3917 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
3918 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
3919 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
3920 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
3921 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
3922 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
3923};
3924
3925/* Fix up the DAI formats for endianness: codecs don't actually see
3926 * the endianness of the data but we're using the CPU format
3927 * definitions which do need to include endianness so we ensure that
3928 * codec DAIs always have both big and little endian variants set.
3929 */
3930static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
3931{
3932 int i;
3933
3934 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
3935 if (stream->formats & codec_format_map[i])
3936 stream->formats |= codec_format_map[i];
3937}
3938
0d0cf00a
MB		 3939/**
3940 * snd_soc_register_codec - Register a codec with the ASoC core
3941 *
ac11a2b3 3942 * @codec: codec to register
0d0cf00a 3943 */
f0fba2ad 3944int snd_soc_register_codec(struct device *dev,
001ae4c0
MB		 3945 const struct snd_soc_codec_driver *codec_drv,
3946 struct snd_soc_dai_driver *dai_drv,
3947 int num_dai)
0d0cf00a 3948{
3335ddca 3949 size_t reg_size;
f0fba2ad
LG		 3950 struct snd_soc_codec *codec;
3951 int ret, i;
151ab22c 3952
f0fba2ad
LG		 3953 dev_dbg(dev, "codec register %s\n", dev_name(dev));
3954
3955 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
3956 if (codec == NULL)
3957 return -ENOMEM;
0d0cf00a 3958
f0fba2ad
LG		 3959 /* create CODEC component name */
3960 codec->name = fmt_single_name(dev, &codec->id);
3961 if (codec->name == NULL) {
3962 kfree(codec);
3963 return -ENOMEM;
3964 }
3965
23bbce34
DP		 3966 if (codec_drv->compress_type)
3967 codec->compress_type = codec_drv->compress_type;
3968 else
3969 codec->compress_type = SND_SOC_FLAT_COMPRESSION;
3970
c3acec26
MB		 3971 codec->write = codec_drv->write;
3972 codec->read = codec_drv->read;
1500b7b5
DP		 3973 codec->volatile_register = codec_drv->volatile_register;
3974 codec->readable_register = codec_drv->readable_register;
8020454c 3975 codec->writable_register = codec_drv->writable_register;
5124e69e 3976 codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time;
ce6120cc
LG		 3977 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
3978 codec->dapm.dev = dev;
3979 codec->dapm.codec = codec;
474b62d6 3980 codec->dapm.seq_notifier = codec_drv->seq_notifier;
64a648c2 3981 codec->dapm.stream_event = codec_drv->stream_event;
7a30a3db
DP		 3982 codec->dev = dev;
3983 codec->driver = codec_drv;
3984 codec->num_dai = num_dai;
3985 mutex_init(&codec->mutex);
ce6120cc 3986
f0fba2ad
LG		 3987 /* allocate CODEC register cache */
3988 if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
3335ddca 3989 reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
aea170a0 3990 codec->reg_size = reg_size;
3335ddca
DP		 3991 /* it is necessary to make a copy of the default register cache
3992 * because in the case of using a compression type that requires
3993 * the default register cache to be marked as __devinitconst the
3994 * kernel might have freed the array by the time we initialize
3995 * the cache.
3996 */
2aa86323
DP		 3997 if (codec_drv->reg_cache_default) {
3998 codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
3999 reg_size, GFP_KERNEL);
4000 if (!codec->reg_def_copy) {
4001 ret = -ENOMEM;
4002 goto fail;
4003 }
f0fba2ad 4004 }
151ab22c
MB		 4005 }
4006
1500b7b5
DP		 4007 if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
4008 if (!codec->volatile_register)
4009 codec->volatile_register = snd_soc_default_volatile_register;
4010 if (!codec->readable_register)
4011 codec->readable_register = snd_soc_default_readable_register;
8020454c
DP		 4012 if (!codec->writable_register)
4013 codec->writable_register = snd_soc_default_writable_register;
1500b7b5
DP		 4014 }
4015
f0fba2ad
LG		 4016 for (i = 0; i < num_dai; i++) {
4017 fixup_codec_formats(&dai_drv[i].playback);
4018 fixup_codec_formats(&dai_drv[i].capture);
4019 }
4020
054880fe
MB		 4021 mutex_lock(&client_mutex);
4022 list_add(&codec->list, &codec_list);
4023 mutex_unlock(&client_mutex);
4024
26b01ccd
MB		 4025 /* register any DAIs */
4026 if (num_dai) {
4027 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
4028 if (ret < 0)
054880fe
MB		 4029 dev_err(codec->dev, "Failed to regster DAIs: %d\n",
4030 ret);
26b01ccd 4031 }
f0fba2ad 4032
0d0cf00a 4033 pr_debug("Registered codec '%s'\n", codec->name);
0d0cf00a 4034 return 0;
f0fba2ad 4035
fdf0f54d 4036fail:
3335ddca
DP		 4037 kfree(codec->reg_def_copy);
4038 codec->reg_def_copy = NULL;
f0fba2ad
LG		 4039 kfree(codec->name);
4040 kfree(codec);
4041 return ret;
0d0cf00a
MB		 4042}
4043EXPORT_SYMBOL_GPL(snd_soc_register_codec);
4044
4045/**
4046 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4047 *
ac11a2b3 4048 * @codec: codec to unregister
0d0cf00a 4049 */
f0fba2ad 4050void snd_soc_unregister_codec(struct device *dev)
0d0cf00a 4051{
f0fba2ad
LG		 4052 struct snd_soc_codec *codec;
4053 int i;
4054
4055 list_for_each_entry(codec, &codec_list, list) {
4056 if (dev == codec->dev)
4057 goto found;
4058 }
4059 return;
4060
4061found:
26b01ccd
MB		 4062 if (codec->num_dai)
4063 for (i = 0; i < codec->num_dai; i++)
4064 snd_soc_unregister_dai(dev);
f0fba2ad 4065
0d0cf00a
MB		 4066 mutex_lock(&client_mutex);
4067 list_del(&codec->list);
4068 mutex_unlock(&client_mutex);
4069
4070 pr_debug("Unregistered codec '%s'\n", codec->name);
f0fba2ad 4071
7a30a3db 4072 snd_soc_cache_exit(codec);
3335ddca 4073 kfree(codec->reg_def_copy);
1aafcd4d 4074 kfree(codec->name);
f0fba2ad 4075 kfree(codec);
0d0cf00a
MB		 4076}
4077EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
4078
bec4fa05
SW		 4079/* Retrieve a card's name from device tree */
4080int snd_soc_of_parse_card_name(struct snd_soc_card *card,
4081 const char *propname)
4082{
4083 struct device_node *np = card->dev->of_node;
4084 int ret;
4085
4086 ret = of_property_read_string_index(np, propname, 0, &card->name);
4087 /*
4088 * EINVAL means the property does not exist. This is fine providing
4089 * card->name was previously set, which is checked later in
4090 * snd_soc_register_card.
4091 */
4092 if (ret < 0 && ret != -EINVAL) {
4093 dev_err(card->dev,
4094 "Property '%s' could not be read: %d\n",
4095 propname, ret);
4096 return ret;
4097 }
4098
4099 return 0;
4100}
4101EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
4102
a4a54dd5
SW		 4103int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
4104 const char *propname)
4105{
4106 struct device_node *np = card->dev->of_node;
4107 int num_routes;
4108 struct snd_soc_dapm_route *routes;
4109 int i, ret;
4110
4111 num_routes = of_property_count_strings(np, propname);
c34ce320 4112 if (num_routes < 0 || num_routes & 1) {
a4a54dd5 4113 dev_err(card->dev,
c34ce320
RZ		 4114 "Property '%s' does not exist or its length is not even\n",
4115 propname);
a4a54dd5
SW		 4116 return -EINVAL;
4117 }
4118 num_routes /= 2;
4119 if (!num_routes) {
4120 dev_err(card->dev,
4121 "Property '%s's length is zero\n",
4122 propname);
4123 return -EINVAL;
4124 }
4125
4126 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
4127 GFP_KERNEL);
4128 if (!routes) {
4129 dev_err(card->dev,
4130 "Could not allocate DAPM route table\n");
4131 return -EINVAL;
4132 }
4133
4134 for (i = 0; i < num_routes; i++) {
4135 ret = of_property_read_string_index(np, propname,
4136 2 * i, &routes[i].sink);
4137 if (ret) {
4138 dev_err(card->dev,
4139 "Property '%s' index %d could not be read: %d\n",
4140 propname, 2 * i, ret);
b761c0ca 4141 kfree(routes);
a4a54dd5
SW		 4142 return -EINVAL;
4143 }
4144 ret = of_property_read_string_index(np, propname,
4145 (2 * i) + 1, &routes[i].source);
4146 if (ret) {
4147 dev_err(card->dev,
4148 "Property '%s' index %d could not be read: %d\n",
4149 propname, (2 * i) + 1, ret);
b761c0ca 4150 kfree(routes);
a4a54dd5
SW		 4151 return -EINVAL;
4152 }
4153 }
4154
4155 card->num_dapm_routes = num_routes;
4156 card->dapm_routes = routes;
4157
4158 return 0;
4159}
4160EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
4161
c9b3a40f 4162static int __init snd_soc_init(void)
db2a4165 4163{
384c89e2 4164#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 4165 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
4166 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
0837fc62 4167 pr_warn("ASoC: Failed to create debugfs directory\n");
8a9dab1a 4168 snd_soc_debugfs_root = NULL;
384c89e2 4169 }
c3c5a19a 4170
8a9dab1a 4171 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
c3c5a19a
MB		 4172 &codec_list_fops))
4173 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4174
8a9dab1a 4175 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
f3208780
MB		 4176 &dai_list_fops))
4177 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
19c7ac27 4178
8a9dab1a 4179 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
19c7ac27
MB		 4180 &platform_list_fops))
4181 pr_warn("ASoC: Failed to create platform list debugfs file\n");
384c89e2
MB		 4182#endif
4183
fb257897
MB		 4184 snd_soc_util_init();
4185
db2a4165
FM		 4186 return platform_driver_register(&soc_driver);
4187}
4abe8e16 4188module_init(snd_soc_init);
db2a4165 4189
7d8c16a6 4190static void __exit snd_soc_exit(void)
db2a4165 4191{
fb257897
MB		 4192 snd_soc_util_exit();
4193
384c89e2 4194#ifdef CONFIG_DEBUG_FS
8a9dab1a 4195 debugfs_remove_recursive(snd_soc_debugfs_root);
384c89e2 4196#endif
3ff3f64b 4197 platform_driver_unregister(&soc_driver);
db2a4165 4198}
db2a4165
FM		 4199module_exit(snd_soc_exit);
4200
4201/* Module information */
d331124d 4202MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
db2a4165
FM		 4203MODULE_DESCRIPTION("ALSA SoC Core");
4204MODULE_LICENSE("GPL");
8b45a209 4205MODULE_ALIAS("platform:soc-audio");
Linux kernel - Deliverables
This page took 0.920256 seconds and 5 git commands to generate.