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ASoC: wm8962: Log AIF configuration requested by hw_params()
[GitHub/mt8127/android_kernel_alcatel_ttab.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
MB		 828 if (!rtd->cpu_dai) {
829 dev_dbg(card->dev, "CPU DAI %s not registered\n",
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
MB		 859 if (!rtd->codec_dai) {
860 dev_dbg(card->dev, "CODEC DAI %s not registered\n",
861 dai_link->codec_dai_name);
862 return -EPROBE_DEFER;
863 }
f0fba2ad 864 }
6b05eda6 865
b19e6e7b
MB		 866 if (!rtd->codec) {
867 dev_dbg(card->dev, "CODEC %s not registered\n",
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
MB		 890 if (!rtd->platform) {
891 dev_dbg(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
b7af1daf 1098 if (driver->controls)
022658be 1099 snd_soc_add_codec_controls(codec, driver->controls,
b7af1daf 1100 driver->num_controls);
89b95ac0
MB		 1101 if (driver->dapm_routes)
1102 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
1103 driver->num_dapm_routes);
1104
589c3563
JN		 1105 /* mark codec as probed and add to card codec list */
1106 codec->probed = 1;
1107 list_add(&codec->card_list, &card->codec_dev_list);
7be31be8 1108 list_add(&codec->dapm.list, &card->dapm_list);
589c3563 1109
70d29331
JN		 1110 return 0;
1111
1112err_probe:
d5d1e0be 1113 soc_cleanup_codec_debugfs(codec);
70d29331
JN		 1114 module_put(codec->dev->driver->owner);
1115
589c3563
JN		 1116 return ret;
1117}
1118
956245e9
LG		 1119static int soc_probe_platform(struct snd_soc_card *card,
1120 struct snd_soc_platform *platform)
1121{
1122 int ret = 0;
1123 const struct snd_soc_platform_driver *driver = platform->driver;
be09ad90 1124 struct snd_soc_dai *dai;
956245e9
LG		 1125
1126 platform->card = card;
b7950641 1127 platform->dapm.card = card;
956245e9
LG		 1128
1129 if (!try_module_get(platform->dev->driver->owner))
1130 return -ENODEV;
1131
731f1ab2
SG		 1132 soc_init_platform_debugfs(platform);
1133
cb2cf612
LG		 1134 if (driver->dapm_widgets)
1135 snd_soc_dapm_new_controls(&platform->dapm,
1136 driver->dapm_widgets, driver->num_dapm_widgets);
1137
be09ad90
LG		 1138 /* Create DAPM widgets for each DAI stream */
1139 list_for_each_entry(dai, &dai_list, list) {
1140 if (dai->dev != platform->dev)
1141 continue;
1142
1143 snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
1144 }
1145
3fec6b6d
SW		 1146 platform->dapm.idle_bias_off = 1;
1147
956245e9
LG		 1148 if (driver->probe) {
1149 ret = driver->probe(platform);
1150 if (ret < 0) {
1151 dev_err(platform->dev,
1152 "asoc: failed to probe platform %s: %d\n",
1153 platform->name, ret);
1154 goto err_probe;
1155 }
1156 }
1157
cb2cf612
LG		 1158 if (driver->controls)
1159 snd_soc_add_platform_controls(platform, driver->controls,
1160 driver->num_controls);
1161 if (driver->dapm_routes)
1162 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1163 driver->num_dapm_routes);
1164
956245e9
LG		 1165 /* mark platform as probed and add to card platform list */
1166 platform->probed = 1;
1167 list_add(&platform->card_list, &card->platform_dev_list);
b7950641 1168 list_add(&platform->dapm.list, &card->dapm_list);
956245e9
LG		 1169
1170 return 0;
1171
1172err_probe:
02db1103 1173 soc_cleanup_platform_debugfs(platform);
956245e9
LG		 1174 module_put(platform->dev->driver->owner);
1175
1176 return ret;
1177}
1178
36ae1a96
MB		 1179static void rtd_release(struct device *dev)
1180{
1181 kfree(dev);
1182}
f0fba2ad 1183
589c3563
JN		 1184static int soc_post_component_init(struct snd_soc_card *card,
1185 struct snd_soc_codec *codec,
1186 int num, int dailess)
1187{
1188 struct snd_soc_dai_link *dai_link = NULL;
1189 struct snd_soc_aux_dev *aux_dev = NULL;
1190 struct snd_soc_pcm_runtime *rtd;
1191 const char *temp, *name;
1192 int ret = 0;
1193
1194 if (!dailess) {
1195 dai_link = &card->dai_link[num];
1196 rtd = &card->rtd[num];
1197 name = dai_link->name;
1198 } else {
1199 aux_dev = &card->aux_dev[num];
1200 rtd = &card->rtd_aux[num];
1201 name = aux_dev->name;
1202 }
0962bb21 1203 rtd->card = card;
589c3563 1204
4b1cfcb4
MB		 1205 /* Make sure all DAPM widgets are instantiated */
1206 snd_soc_dapm_new_widgets(&codec->dapm);
1207
589c3563
JN		 1208 /* machine controls, routes and widgets are not prefixed */
1209 temp = codec->name_prefix;
1210 codec->name_prefix = NULL;
1211
1212 /* do machine specific initialization */
1213 if (!dailess && dai_link->init)
1214 ret = dai_link->init(rtd);
1215 else if (dailess && aux_dev->init)
1216 ret = aux_dev->init(&codec->dapm);
1217 if (ret < 0) {
1218 dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret);
1219 return ret;
1220 }
1221 codec->name_prefix = temp;
1222
589c3563
JN		 1223 /* register the rtd device */
1224 rtd->codec = codec;
36ae1a96
MB		 1225
1226 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1227 if (!rtd->dev)
1228 return -ENOMEM;
1229 device_initialize(rtd->dev);
1230 rtd->dev->parent = card->dev;
1231 rtd->dev->release = rtd_release;
1232 rtd->dev->init_name = name;
1233 dev_set_drvdata(rtd->dev, rtd);
b8c0dab9 1234 mutex_init(&rtd->pcm_mutex);
01d7584c
LG		 1235 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
1236 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
1237 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
1238 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
36ae1a96 1239 ret = device_add(rtd->dev);
589c3563
JN		 1240 if (ret < 0) {
1241 dev_err(card->dev,
1242 "asoc: failed to register runtime device: %d\n", ret);
1243 return ret;
1244 }
1245 rtd->dev_registered = 1;
1246
1247 /* add DAPM sysfs entries for this codec */
36ae1a96 1248 ret = snd_soc_dapm_sys_add(rtd->dev);
589c3563
JN		 1249 if (ret < 0)
1250 dev_err(codec->dev,
1251 "asoc: failed to add codec dapm sysfs entries: %d\n",
1252 ret);
1253
1254 /* add codec sysfs entries */
36ae1a96 1255 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
589c3563
JN		 1256 if (ret < 0)
1257 dev_err(codec->dev,
1258 "asoc: failed to add codec sysfs files: %d\n", ret);
1259
f86dcef8
LG		 1260#ifdef CONFIG_DEBUG_FS
1261 /* add DPCM sysfs entries */
cd0f8911 1262 if (!dailess && !dai_link->dynamic)
f86dcef8
LG		 1263 goto out;
1264
1265 ret = soc_dpcm_debugfs_add(rtd);
1266 if (ret < 0)
1267 dev_err(rtd->dev, "asoc: failed to add dpcm sysfs entries: %d\n", ret);
1268
1269out:
1270#endif
589c3563
JN		 1271 return 0;
1272}
1273
62ae68fa
SW		 1274static int soc_probe_link_components(struct snd_soc_card *card, int num,
1275 int order)
1276{
1277 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1278 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1279 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1280 struct snd_soc_platform *platform = rtd->platform;
1281 int ret;
1282
1283 /* probe the CPU-side component, if it is a CODEC */
1284 if (cpu_dai->codec &&
1285 !cpu_dai->codec->probed &&
1286 cpu_dai->codec->driver->probe_order == order) {
1287 ret = soc_probe_codec(card, cpu_dai->codec);
1288 if (ret < 0)
1289 return ret;
1290 }
1291
1292 /* probe the CODEC-side component */
1293 if (!codec_dai->codec->probed &&
1294 codec_dai->codec->driver->probe_order == order) {
1295 ret = soc_probe_codec(card, codec_dai->codec);
1296 if (ret < 0)
1297 return ret;
1298 }
1299
1300 /* probe the platform */
1301 if (!platform->probed &&
1302 platform->driver->probe_order == order) {
1303 ret = soc_probe_platform(card, platform);
1304 if (ret < 0)
1305 return ret;
1306 }
1307
1308 return 0;
1309}
1310
1311static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 1312{
1313 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1314 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1315 struct snd_soc_codec *codec = rtd->codec;
1316 struct snd_soc_platform *platform = rtd->platform;
c74184ed
MB		 1317 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1318 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1319 struct snd_soc_dapm_widget *play_w, *capture_w;
f0fba2ad
LG		 1320 int ret;
1321
0168bf0d
LG		 1322 dev_dbg(card->dev, "probe %s dai link %d late %d\n",
1323 card->name, num, order);
f0fba2ad
LG		 1324
1325 /* config components */
f0fba2ad 1326 cpu_dai->platform = platform;
f0fba2ad
LG		 1327 codec_dai->card = card;
1328 cpu_dai->card = card;
1329
1330 /* set default power off timeout */
1331 rtd->pmdown_time = pmdown_time;
1332
1333 /* probe the cpu_dai */
0168bf0d
LG		 1334 if (!cpu_dai->probed &&
1335 cpu_dai->driver->probe_order == order) {
a9db7dbe
SW		 1336 if (!cpu_dai->codec) {
1337 cpu_dai->dapm.card = card;
1338 if (!try_module_get(cpu_dai->dev->driver->owner))
1339 return -ENODEV;
61b61e3c 1340
18d75644 1341 list_add(&cpu_dai->dapm.list, &card->dapm_list);
a9db7dbe
SW		 1342 snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai);
1343 }
be09ad90 1344
f0fba2ad
LG		 1345 if (cpu_dai->driver->probe) {
1346 ret = cpu_dai->driver->probe(cpu_dai);
1347 if (ret < 0) {
0837fc62
FE		 1348 pr_err("asoc: failed to probe CPU DAI %s: %d\n",
1349 cpu_dai->name, ret);
61b61e3c 1350 module_put(cpu_dai->dev->driver->owner);
f0fba2ad
LG		 1351 return ret;
1352 }
1353 }
1354 cpu_dai->probed = 1;
1c8371d6 1355 /* mark cpu_dai as probed and add to card dai list */
f0fba2ad 1356 list_add(&cpu_dai->card_list, &card->dai_dev_list);
db2a4165
FM		 1357 }
1358
f0fba2ad 1359 /* probe the CODEC DAI */
0168bf0d 1360 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
f0fba2ad
LG		 1361 if (codec_dai->driver->probe) {
1362 ret = codec_dai->driver->probe(codec_dai);
fe3e78e0 1363 if (ret < 0) {
0837fc62
FE		 1364 pr_err("asoc: failed to probe CODEC DAI %s: %d\n",
1365 codec_dai->name, ret);
f0fba2ad 1366 return ret;
fe3e78e0
MB		 1367 }
1368 }
f0fba2ad 1369
1c8371d6 1370 /* mark codec_dai as probed and add to card dai list */
f0fba2ad
LG		 1371 codec_dai->probed = 1;
1372 list_add(&codec_dai->card_list, &card->dai_dev_list);
fe3e78e0
MB		 1373 }
1374
0168bf0d
LG		 1375 /* complete DAI probe during last probe */
1376 if (order != SND_SOC_COMP_ORDER_LAST)
1377 return 0;
1378
589c3563
JN		 1379 ret = soc_post_component_init(card, codec, num, 0);
1380 if (ret)
f0fba2ad 1381 return ret;
fe3e78e0 1382
36ae1a96 1383 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
f0fba2ad 1384 if (ret < 0)
0837fc62 1385 pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret);
f0fba2ad 1386
c74184ed
MB		 1387 if (!dai_link->params) {
1388 /* create the pcm */
1389 ret = soc_new_pcm(rtd, num);
1390 if (ret < 0) {
1391 pr_err("asoc: can't create pcm %s :%d\n",
1392 dai_link->stream_name, ret);
1393 return ret;
1394 }
1395 } else {
1396 /* link the DAI widgets */
1397 play_w = codec_dai->playback_widget;
1398 capture_w = cpu_dai->capture_widget;
1399 if (play_w && capture_w) {
1400 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1401 capture_w, play_w);
1402 if (ret != 0) {
1403 dev_err(card->dev, "Can't link %s to %s: %d\n",
1404 play_w->name, capture_w->name, ret);
1405 return ret;
1406 }
1407 }
1408
1409 play_w = cpu_dai->playback_widget;
1410 capture_w = codec_dai->capture_widget;
1411 if (play_w && capture_w) {
1412 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1413 capture_w, play_w);
1414 if (ret != 0) {
1415 dev_err(card->dev, "Can't link %s to %s: %d\n",
1416 play_w->name, capture_w->name, ret);
1417 return ret;
1418 }
1419 }
f0fba2ad
LG		 1420 }
1421
1422 /* add platform data for AC97 devices */
1423 if (rtd->codec_dai->driver->ac97_control)
1424 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1425
1426 return 0;
1427}
1428
fe3e78e0 1429#ifdef CONFIG_SND_SOC_AC97_BUS
f0fba2ad
LG		 1430static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1431{
1432 int ret;
1433
fe3e78e0
MB		 1434 /* Only instantiate AC97 if not already done by the adaptor
1435 * for the generic AC97 subsystem.
1436 */
f0fba2ad 1437 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
0562f788
MW		 1438 /*
1439 * It is possible that the AC97 device is already registered to
1440 * the device subsystem. This happens when the device is created
1441 * via snd_ac97_mixer(). Currently only SoC codec that does so
1442 * is the generic AC97 glue but others migh emerge.
1443 *
1444 * In those cases we don't try to register the device again.
1445 */
1446 if (!rtd->codec->ac97_created)
1447 return 0;
f0fba2ad
LG		 1448
1449 ret = soc_ac97_dev_register(rtd->codec);
fe3e78e0 1450 if (ret < 0) {
0837fc62 1451 pr_err("asoc: AC97 device register failed:%d\n", ret);
f0fba2ad 1452 return ret;
fe3e78e0 1453 }
f0fba2ad
LG		 1454
1455 rtd->codec->ac97_registered = 1;
fe3e78e0 1456 }
f0fba2ad
LG		 1457 return 0;
1458}
1459
1460static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1461{
1462 if (codec->ac97_registered) {
1463 soc_ac97_dev_unregister(codec);
1464 codec->ac97_registered = 0;
1465 }
1466}
fe3e78e0
MB		 1467#endif
1468
b19e6e7b
MB		 1469static int soc_check_aux_dev(struct snd_soc_card *card, int num)
1470{
1471 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
1472 struct snd_soc_codec *codec;
1473
1474 /* find CODEC from registered CODECs*/
1475 list_for_each_entry(codec, &codec_list, list) {
1476 if (!strcmp(codec->name, aux_dev->codec_name))
1477 return 0;
1478 }
1479
1480 return -EPROBE_DEFER;
1481}
1482
2eea392d
JN		 1483static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1484{
1485 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
2eea392d 1486 struct snd_soc_codec *codec;
676ad98a 1487 int ret = -ENODEV;
2eea392d
JN		 1488
1489 /* find CODEC from registered CODECs*/
1490 list_for_each_entry(codec, &codec_list, list) {
1491 if (!strcmp(codec->name, aux_dev->codec_name)) {
1492 if (codec->probed) {
1493 dev_err(codec->dev,
1494 "asoc: codec already probed");
1495 ret = -EBUSY;
1496 goto out;
1497 }
676ad98a 1498 goto found;
2eea392d
JN		 1499 }
1500 }
676ad98a
JN		 1501 /* codec not found */
1502 dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name);
b19e6e7b 1503 return -EPROBE_DEFER;
2eea392d 1504
676ad98a 1505found:
589c3563 1506 ret = soc_probe_codec(card, codec);
2eea392d 1507 if (ret < 0)
589c3563 1508 return ret;
2eea392d 1509
589c3563 1510 ret = soc_post_component_init(card, codec, num, 1);
2eea392d
JN		 1511
1512out:
1513 return ret;
1514}
1515
1516static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1517{
1518 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1519 struct snd_soc_codec *codec = rtd->codec;
2eea392d
JN		 1520
1521 /* unregister the rtd device */
1522 if (rtd->dev_registered) {
36ae1a96
MB		 1523 device_remove_file(rtd->dev, &dev_attr_codec_reg);
1524 device_del(rtd->dev);
2eea392d
JN		 1525 rtd->dev_registered = 0;
1526 }
1527
589c3563
JN		 1528 if (codec && codec->probed)
1529 soc_remove_codec(codec);
2eea392d
JN		 1530}
1531
fdf0f54d
DP		 1532static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
1533 enum snd_soc_compress_type compress_type)
1534{
1535 int ret;
1536
1537 if (codec->cache_init)
1538 return 0;
1539
1540 /* override the compress_type if necessary */
1541 if (compress_type && codec->compress_type != compress_type)
1542 codec->compress_type = compress_type;
fdf0f54d
DP		 1543 ret = snd_soc_cache_init(codec);
1544 if (ret < 0) {
1545 dev_err(codec->dev, "Failed to set cache compression type: %d\n",
1546 ret);
1547 return ret;
1548 }
1549 codec->cache_init = 1;
1550 return 0;
1551}
1552
b19e6e7b 1553static int snd_soc_instantiate_card(struct snd_soc_card *card)
f0fba2ad 1554{
fdf0f54d
DP		 1555 struct snd_soc_codec *codec;
1556 struct snd_soc_codec_conf *codec_conf;
1557 enum snd_soc_compress_type compress_type;
75d9ac46 1558 struct snd_soc_dai_link *dai_link;
f04209a7 1559 int ret, i, order, dai_fmt;
fe3e78e0 1560
01b9d99a 1561 mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
dbe21408 1562
f0fba2ad 1563 /* bind DAIs */
b19e6e7b
MB		 1564 for (i = 0; i < card->num_links; i++) {
1565 ret = soc_bind_dai_link(card, i);
1566 if (ret != 0)
1567 goto base_error;
1568 }
fe3e78e0 1569
b19e6e7b
MB		 1570 /* check aux_devs too */
1571 for (i = 0; i < card->num_aux_devs; i++) {
1572 ret = soc_check_aux_dev(card, i);
1573 if (ret != 0)
1574 goto base_error;
f0fba2ad 1575 }
435c5e25 1576
fdf0f54d
DP		 1577 /* initialize the register cache for each available codec */
1578 list_for_each_entry(codec, &codec_list, list) {
1579 if (codec->cache_init)
1580 continue;
861f2faf
DP		 1581 /* by default we don't override the compress_type */
1582 compress_type = 0;
fdf0f54d
DP		 1583 /* check to see if we need to override the compress_type */
1584 for (i = 0; i < card->num_configs; ++i) {
1585 codec_conf = &card->codec_conf[i];
1586 if (!strcmp(codec->name, codec_conf->dev_name)) {
1587 compress_type = codec_conf->compress_type;
1588 if (compress_type && compress_type
1589 != codec->compress_type)
1590 break;
1591 }
1592 }
fdf0f54d 1593 ret = snd_soc_init_codec_cache(codec, compress_type);
b19e6e7b
MB		 1594 if (ret < 0)
1595 goto base_error;
fdf0f54d
DP		 1596 }
1597
f0fba2ad
LG		 1598 /* card bind complete so register a sound card */
1599 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1600 card->owner, 0, &card->snd_card);
1601 if (ret < 0) {
0837fc62
FE		 1602 pr_err("asoc: can't create sound card for card %s: %d\n",
1603 card->name, ret);
b19e6e7b 1604 goto base_error;
f0fba2ad
LG		 1605 }
1606 card->snd_card->dev = card->dev;
1607
e37a4970
MB		 1608 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1609 card->dapm.dev = card->dev;
1610 card->dapm.card = card;
1611 list_add(&card->dapm.list, &card->dapm_list);
1612
d5d1e0be
LPC		 1613#ifdef CONFIG_DEBUG_FS
1614 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1615#endif
1616
88ee1c61 1617#ifdef CONFIG_PM_SLEEP
f0fba2ad
LG		 1618 /* deferred resume work */
1619 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
1620#endif
db2a4165 1621
9a841ebb
MB		 1622 if (card->dapm_widgets)
1623 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1624 card->num_dapm_widgets);
1625
f0fba2ad
LG		 1626 /* initialise the sound card only once */
1627 if (card->probe) {
e7361ec4 1628 ret = card->probe(card);
f0fba2ad
LG		 1629 if (ret < 0)
1630 goto card_probe_error;
1631 }
fe3e78e0 1632
62ae68fa 1633 /* probe all components used by DAI links on this card */
0168bf0d
LG		 1634 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1635 order++) {
1636 for (i = 0; i < card->num_links; i++) {
62ae68fa 1637 ret = soc_probe_link_components(card, i, order);
0168bf0d
LG		 1638 if (ret < 0) {
1639 pr_err("asoc: failed to instantiate card %s: %d\n",
62ae68fa
SW		 1640 card->name, ret);
1641 goto probe_dai_err;
1642 }
1643 }
1644 }
1645
1646 /* probe all DAI links on this card */
1647 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1648 order++) {
1649 for (i = 0; i < card->num_links; i++) {
1650 ret = soc_probe_link_dais(card, i, order);
1651 if (ret < 0) {
1652 pr_err("asoc: failed to instantiate card %s: %d\n",
1653 card->name, ret);
0168bf0d
LG		 1654 goto probe_dai_err;
1655 }
f0fba2ad
LG		 1656 }
1657 }
db2a4165 1658
2eea392d
JN		 1659 for (i = 0; i < card->num_aux_devs; i++) {
1660 ret = soc_probe_aux_dev(card, i);
1661 if (ret < 0) {
1662 pr_err("asoc: failed to add auxiliary devices %s: %d\n",
1663 card->name, ret);
1664 goto probe_aux_dev_err;
1665 }
1666 }
1667
888df395
MB		 1668 snd_soc_dapm_link_dai_widgets(card);
1669
b7af1daf 1670 if (card->controls)
022658be 1671 snd_soc_add_card_controls(card, card->controls, card->num_controls);
b7af1daf 1672
b8ad29de
MB		 1673 if (card->dapm_routes)
1674 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1675 card->num_dapm_routes);
1676
b90d2f90
MB		 1677 snd_soc_dapm_new_widgets(&card->dapm);
1678
75d9ac46
MB		 1679 for (i = 0; i < card->num_links; i++) {
1680 dai_link = &card->dai_link[i];
f04209a7 1681 dai_fmt = dai_link->dai_fmt;
75d9ac46 1682
f04209a7 1683 if (dai_fmt) {
75d9ac46 1684 ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai,
f04209a7 1685 dai_fmt);
5e4ba569 1686 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46
MB		 1687 dev_warn(card->rtd[i].codec_dai->dev,
1688 "Failed to set DAI format: %d\n",
1689 ret);
f04209a7
MB		 1690 }
1691
1692 /* If this is a regular CPU link there will be a platform */
fe33d4c5
SW		 1693 if (dai_fmt &&
1694 (dai_link->platform_name || dai_link->platform_of_node)) {
f04209a7
MB		 1695 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1696 dai_fmt);
1697 if (ret != 0 && ret != -ENOTSUPP)
1698 dev_warn(card->rtd[i].cpu_dai->dev,
1699 "Failed to set DAI format: %d\n",
1700 ret);
1701 } else if (dai_fmt) {
1702 /* Flip the polarity for the "CPU" end */
1703 dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
1704 switch (dai_link->dai_fmt &
1705 SND_SOC_DAIFMT_MASTER_MASK) {
1706 case SND_SOC_DAIFMT_CBM_CFM:
1707 dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
1708 break;
1709 case SND_SOC_DAIFMT_CBM_CFS:
1710 dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
1711 break;
1712 case SND_SOC_DAIFMT_CBS_CFM:
1713 dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
1714 break;
1715 case SND_SOC_DAIFMT_CBS_CFS:
1716 dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1717 break;
1718 }
75d9ac46
MB		 1719
1720 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
f04209a7 1721 dai_fmt);
5e4ba569 1722 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46
MB		 1723 dev_warn(card->rtd[i].cpu_dai->dev,
1724 "Failed to set DAI format: %d\n",
1725 ret);
1726 }
1727 }
1728
f0fba2ad 1729 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
f0fba2ad 1730 "%s", card->name);
22de71ba
LG		 1731 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1732 "%s", card->long_name ? card->long_name : card->name);
f0e8ed85
MB		 1733 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1734 "%s", card->driver_name ? card->driver_name : card->name);
1735 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1736 switch (card->snd_card->driver[i]) {
1737 case '_':
1738 case '-':
1739 case '\0':
1740 break;
1741 default:
1742 if (!isalnum(card->snd_card->driver[i]))
1743 card->snd_card->driver[i] = '_';
1744 break;
1745 }
1746 }
f0fba2ad 1747
28e9ad92
MB		 1748 if (card->late_probe) {
1749 ret = card->late_probe(card);
1750 if (ret < 0) {
1751 dev_err(card->dev, "%s late_probe() failed: %d\n",
1752 card->name, ret);
1753 goto probe_aux_dev_err;
1754 }
1755 }
1756
2dc00213
MB		 1757 snd_soc_dapm_new_widgets(&card->dapm);
1758
1633281b 1759 if (card->fully_routed)
b05d8dc1 1760 list_for_each_entry(codec, &card->codec_dev_list, card_list)
1633281b
SW		 1761 snd_soc_dapm_auto_nc_codec_pins(codec);
1762
f0fba2ad
LG		 1763 ret = snd_card_register(card->snd_card);
1764 if (ret < 0) {
0837fc62
FE		 1765 pr_err("asoc: failed to register soundcard for %s: %d\n",
1766 card->name, ret);
6b3ed785 1767 goto probe_aux_dev_err;
db2a4165
FM		 1768 }
1769
f0fba2ad
LG		 1770#ifdef CONFIG_SND_SOC_AC97_BUS
1771 /* register any AC97 codecs */
1772 for (i = 0; i < card->num_rtd; i++) {
6b3ed785
AL		 1773 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1774 if (ret < 0) {
0837fc62
FE		 1775 pr_err("asoc: failed to register AC97 %s: %d\n",
1776 card->name, ret);
6b3ed785 1777 while (--i >= 0)
7d8316df 1778 soc_unregister_ac97_dai_link(card->rtd[i].codec);
6b3ed785 1779 goto probe_aux_dev_err;
f0fba2ad 1780 }
6b3ed785 1781 }
f0fba2ad
LG		 1782#endif
1783
1784 card->instantiated = 1;
4f4c0072 1785 snd_soc_dapm_sync(&card->dapm);
f0fba2ad 1786 mutex_unlock(&card->mutex);
b19e6e7b
MB		 1787
1788 return 0;
f0fba2ad 1789
2eea392d
JN		 1790probe_aux_dev_err:
1791 for (i = 0; i < card->num_aux_devs; i++)
1792 soc_remove_aux_dev(card, i);
1793
f0fba2ad 1794probe_dai_err:
0671fd8e 1795 soc_remove_dai_links(card);
f0fba2ad
LG		 1796
1797card_probe_error:
87506549 1798 if (card->remove)
e7361ec4 1799 card->remove(card);
f0fba2ad
LG		 1800
1801 snd_card_free(card->snd_card);
1802
b19e6e7b 1803base_error:
f0fba2ad 1804 mutex_unlock(&card->mutex);
db2a4165 1805
b19e6e7b 1806 return ret;
435c5e25
MB		 1807}
1808
1809/* probes a new socdev */
1810static int soc_probe(struct platform_device *pdev)
1811{
f0fba2ad 1812 struct snd_soc_card *card = platform_get_drvdata(pdev);
435c5e25 1813 int ret = 0;
435c5e25 1814
70a7ca34
VK		 1815 /*
1816 * no card, so machine driver should be registering card
1817 * we should not be here in that case so ret error
1818 */
1819 if (!card)
1820 return -EINVAL;
1821
fe4085e8
MB		 1822 dev_warn(&pdev->dev,
1823 "ASoC machine %s should use snd_soc_register_card()\n",
1824 card->name);
1825
435c5e25
MB		 1826 /* Bodge while we unpick instantiation */
1827 card->dev = &pdev->dev;
f0fba2ad 1828
435c5e25
MB		 1829 ret = snd_soc_register_card(card);
1830 if (ret != 0) {
1831 dev_err(&pdev->dev, "Failed to register card\n");
1832 return ret;
1833 }
1834
1835 return 0;
db2a4165
FM		 1836}
1837
b0e26485 1838static int soc_cleanup_card_resources(struct snd_soc_card *card)
db2a4165
FM		 1839{
1840 int i;
db2a4165 1841
b0e26485
VK		 1842 /* make sure any delayed work runs */
1843 for (i = 0; i < card->num_rtd; i++) {
1844 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
1845 flush_delayed_work_sync(&rtd->delayed_work);
1846 }
914dc182 1847
b0e26485
VK		 1848 /* remove auxiliary devices */
1849 for (i = 0; i < card->num_aux_devs; i++)
1850 soc_remove_aux_dev(card, i);
db2a4165 1851
b0e26485 1852 /* remove and free each DAI */
0671fd8e 1853 soc_remove_dai_links(card);
2eea392d 1854
b0e26485 1855 soc_cleanup_card_debugfs(card);
f0fba2ad 1856
b0e26485
VK		 1857 /* remove the card */
1858 if (card->remove)
e7361ec4 1859 card->remove(card);
a6052154 1860
0aaae527
LPC		 1861 snd_soc_dapm_free(&card->dapm);
1862
b0e26485
VK		 1863 snd_card_free(card->snd_card);
1864 return 0;
1865
1866}
1867
1868/* removes a socdev */
1869static int soc_remove(struct platform_device *pdev)
1870{
1871 struct snd_soc_card *card = platform_get_drvdata(pdev);
db2a4165 1872
c5af3a2e 1873 snd_soc_unregister_card(card);
db2a4165
FM		 1874 return 0;
1875}
1876
6f8ab4ac 1877int snd_soc_poweroff(struct device *dev)
51737470 1878{
6f8ab4ac 1879 struct snd_soc_card *card = dev_get_drvdata(dev);
f0fba2ad 1880 int i;
51737470
MB		 1881
1882 if (!card->instantiated)
416356fc 1883 return 0;
51737470
MB		 1884
1885 /* Flush out pmdown_time work - we actually do want to run it
1886 * now, we're shutting down so no imminent restart. */
f0fba2ad
LG		 1887 for (i = 0; i < card->num_rtd; i++) {
1888 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
5b84ba26 1889 flush_delayed_work_sync(&rtd->delayed_work);
f0fba2ad 1890 }
51737470 1891
f0fba2ad 1892 snd_soc_dapm_shutdown(card);
416356fc
MB		 1893
1894 return 0;
51737470 1895}
6f8ab4ac 1896EXPORT_SYMBOL_GPL(snd_soc_poweroff);
51737470 1897
6f8ab4ac 1898const struct dev_pm_ops snd_soc_pm_ops = {
b1dd5897
VK		 1899 .suspend = snd_soc_suspend,
1900 .resume = snd_soc_resume,
1901 .freeze = snd_soc_suspend,
1902 .thaw = snd_soc_resume,
6f8ab4ac 1903 .poweroff = snd_soc_poweroff,
b1dd5897 1904 .restore = snd_soc_resume,
416356fc 1905};
deb2607e 1906EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
416356fc 1907
db2a4165
FM		 1908/* ASoC platform driver */
1909static struct platform_driver soc_driver = {
1910 .driver = {
1911 .name = "soc-audio",
8b45a209 1912 .owner = THIS_MODULE,
6f8ab4ac 1913 .pm = &snd_soc_pm_ops,
db2a4165
FM		 1914 },
1915 .probe = soc_probe,
1916 .remove = soc_remove,
db2a4165
FM		 1917};
1918
096e49d5
MB		 1919/**
1920 * snd_soc_codec_volatile_register: Report if a register is volatile.
1921 *
1922 * @codec: CODEC to query.
1923 * @reg: Register to query.
1924 *
1925 * Boolean function indiciating if a CODEC register is volatile.
1926 */
181e055e
MB		 1927int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1928 unsigned int reg)
096e49d5 1929{
1500b7b5
DP		 1930 if (codec->volatile_register)
1931 return codec->volatile_register(codec, reg);
096e49d5
MB		 1932 else
1933 return 0;
1934}
1935EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1936
239c9706
DP		 1937/**
1938 * snd_soc_codec_readable_register: Report if a register is readable.
1939 *
1940 * @codec: CODEC to query.
1941 * @reg: Register to query.
1942 *
1943 * Boolean function indicating if a CODEC register is readable.
1944 */
1945int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
1946 unsigned int reg)
1947{
1948 if (codec->readable_register)
1949 return codec->readable_register(codec, reg);
1950 else
63fa0a28 1951 return 1;
239c9706
DP		 1952}
1953EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
1954
1955/**
1956 * snd_soc_codec_writable_register: Report if a register is writable.
1957 *
1958 * @codec: CODEC to query.
1959 * @reg: Register to query.
1960 *
1961 * Boolean function indicating if a CODEC register is writable.
1962 */
1963int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
1964 unsigned int reg)
1965{
1966 if (codec->writable_register)
1967 return codec->writable_register(codec, reg);
1968 else
63fa0a28 1969 return 1;
239c9706
DP		 1970}
1971EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
1972
f1442bc1
LG		 1973int snd_soc_platform_read(struct snd_soc_platform *platform,
1974 unsigned int reg)
1975{
1976 unsigned int ret;
1977
1978 if (!platform->driver->read) {
1979 dev_err(platform->dev, "platform has no read back\n");
1980 return -1;
1981 }
1982
1983 ret = platform->driver->read(platform, reg);
1984 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
a82ce2ae 1985 trace_snd_soc_preg_read(platform, reg, ret);
f1442bc1
LG		 1986
1987 return ret;
1988}
1989EXPORT_SYMBOL_GPL(snd_soc_platform_read);
1990
1991int snd_soc_platform_write(struct snd_soc_platform *platform,
1992 unsigned int reg, unsigned int val)
1993{
1994 if (!platform->driver->write) {
1995 dev_err(platform->dev, "platform has no write back\n");
1996 return -1;
1997 }
1998
1999 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
a82ce2ae 2000 trace_snd_soc_preg_write(platform, reg, val);
f1442bc1
LG		 2001 return platform->driver->write(platform, reg, val);
2002}
2003EXPORT_SYMBOL_GPL(snd_soc_platform_write);
2004
db2a4165
FM		 2005/**
2006 * snd_soc_new_ac97_codec - initailise AC97 device
2007 * @codec: audio codec
2008 * @ops: AC97 bus operations
2009 * @num: AC97 codec number
2010 *
2011 * Initialises AC97 codec resources for use by ad-hoc devices only.
2012 */
2013int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
2014 struct snd_ac97_bus_ops *ops, int num)
2015{
2016 mutex_lock(&codec->mutex);
2017
2018 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
2019 if (codec->ac97 == NULL) {
2020 mutex_unlock(&codec->mutex);
2021 return -ENOMEM;
2022 }
2023
2024 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
2025 if (codec->ac97->bus == NULL) {
2026 kfree(codec->ac97);
2027 codec->ac97 = NULL;
2028 mutex_unlock(&codec->mutex);
2029 return -ENOMEM;
2030 }
2031
2032 codec->ac97->bus->ops = ops;
2033 codec->ac97->num = num;
0562f788
MW		 2034
2035 /*
2036 * Mark the AC97 device to be created by us. This way we ensure that the
2037 * device will be registered with the device subsystem later on.
2038 */
2039 codec->ac97_created = 1;
2040
db2a4165
FM		 2041 mutex_unlock(&codec->mutex);
2042 return 0;
2043}
2044EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
2045
2046/**
2047 * snd_soc_free_ac97_codec - free AC97 codec device
2048 * @codec: audio codec
2049 *
2050 * Frees AC97 codec device resources.
2051 */
2052void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
2053{
2054 mutex_lock(&codec->mutex);
f0fba2ad
LG		 2055#ifdef CONFIG_SND_SOC_AC97_BUS
2056 soc_unregister_ac97_dai_link(codec);
2057#endif
db2a4165
FM		 2058 kfree(codec->ac97->bus);
2059 kfree(codec->ac97);
2060 codec->ac97 = NULL;
0562f788 2061 codec->ac97_created = 0;
db2a4165
FM		 2062 mutex_unlock(&codec->mutex);
2063}
2064EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
2065
c3753707
MB		 2066unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
2067{
2068 unsigned int ret;
2069
c3acec26 2070 ret = codec->read(codec, reg);
c3753707 2071 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
a8b1d34f 2072 trace_snd_soc_reg_read(codec, reg, ret);
c3753707
MB		 2073
2074 return ret;
2075}
2076EXPORT_SYMBOL_GPL(snd_soc_read);
2077
2078unsigned int snd_soc_write(struct snd_soc_codec *codec,
2079 unsigned int reg, unsigned int val)
2080{
2081 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
a8b1d34f 2082 trace_snd_soc_reg_write(codec, reg, val);
c3acec26 2083 return codec->write(codec, reg, val);
c3753707
MB		 2084}
2085EXPORT_SYMBOL_GPL(snd_soc_write);
2086
5fb609d4
DP		 2087unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
2088 unsigned int reg, const void *data, size_t len)
2089{
2090 return codec->bulk_write_raw(codec, reg, data, len);
2091}
2092EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw);
2093
db2a4165
FM		 2094/**
2095 * snd_soc_update_bits - update codec register bits
2096 * @codec: audio codec
2097 * @reg: codec register
2098 * @mask: register mask
2099 * @value: new value
2100 *
2101 * Writes new register value.
2102 *
180c329d 2103 * Returns 1 for change, 0 for no change, or negative error code.
db2a4165
FM		 2104 */
2105int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2106 unsigned int mask, unsigned int value)
db2a4165 2107{
8a713da8 2108 bool change;
46f5822f 2109 unsigned int old, new;
180c329d
TT		 2110 int ret;
2111
8a713da8
MB		 2112 if (codec->using_regmap) {
2113 ret = regmap_update_bits_check(codec->control_data, reg,
2114 mask, value, &change);
2115 } else {
2116 ret = snd_soc_read(codec, reg);
180c329d
TT		 2117 if (ret < 0)
2118 return ret;
8a713da8
MB		 2119
2120 old = ret;
2121 new = (old & ~mask) | (value & mask);
2122 change = old != new;
2123 if (change)
2124 ret = snd_soc_write(codec, reg, new);
180c329d 2125 }
db2a4165 2126
8a713da8
MB		 2127 if (ret < 0)
2128 return ret;
2129
db2a4165
FM		 2130 return change;
2131}
2132EXPORT_SYMBOL_GPL(snd_soc_update_bits);
2133
6c508c62
EN		 2134/**
2135 * snd_soc_update_bits_locked - update codec register bits
2136 * @codec: audio codec
2137 * @reg: codec register
2138 * @mask: register mask
2139 * @value: new value
2140 *
2141 * Writes new register value, and takes the codec mutex.
2142 *
2143 * Returns 1 for change else 0.
2144 */
dd1b3d53
MB		 2145int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
2146 unsigned short reg, unsigned int mask,
2147 unsigned int value)
6c508c62
EN		 2148{
2149 int change;
2150
2151 mutex_lock(&codec->mutex);
2152 change = snd_soc_update_bits(codec, reg, mask, value);
2153 mutex_unlock(&codec->mutex);
2154
2155 return change;
2156}
dd1b3d53 2157EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
6c508c62 2158
db2a4165
FM		 2159/**
2160 * snd_soc_test_bits - test register for change
2161 * @codec: audio codec
2162 * @reg: codec register
2163 * @mask: register mask
2164 * @value: new value
2165 *
2166 * Tests a register with a new value and checks if the new value is
2167 * different from the old value.
2168 *
2169 * Returns 1 for change else 0.
2170 */
2171int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2172 unsigned int mask, unsigned int value)
db2a4165
FM		 2173{
2174 int change;
46f5822f 2175 unsigned int old, new;
db2a4165 2176
db2a4165
FM		 2177 old = snd_soc_read(codec, reg);
2178 new = (old & ~mask) | value;
2179 change = old != new;
db2a4165
FM		 2180
2181 return change;
2182}
2183EXPORT_SYMBOL_GPL(snd_soc_test_bits);
2184
db2a4165
FM		 2185/**
2186 * snd_soc_set_runtime_hwparams - set the runtime hardware parameters
2187 * @substream: the pcm substream
2188 * @hw: the hardware parameters
2189 *
2190 * Sets the substream runtime hardware parameters.
2191 */
2192int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
2193 const struct snd_pcm_hardware *hw)
2194{
2195 struct snd_pcm_runtime *runtime = substream->runtime;
2196 runtime->hw.info = hw->info;
2197 runtime->hw.formats = hw->formats;
2198 runtime->hw.period_bytes_min = hw->period_bytes_min;
2199 runtime->hw.period_bytes_max = hw->period_bytes_max;
2200 runtime->hw.periods_min = hw->periods_min;
2201 runtime->hw.periods_max = hw->periods_max;
2202 runtime->hw.buffer_bytes_max = hw->buffer_bytes_max;
2203 runtime->hw.fifo_size = hw->fifo_size;
2204 return 0;
2205}
2206EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams);
2207
2208/**
2209 * snd_soc_cnew - create new control
2210 * @_template: control template
2211 * @data: control private data
ac11a2b3 2212 * @long_name: control long name
efb7ac3f 2213 * @prefix: control name prefix
db2a4165
FM		 2214 *
2215 * Create a new mixer control from a template control.
2216 *
2217 * Returns 0 for success, else error.
2218 */
2219struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
3056557f 2220 void *data, const char *long_name,
efb7ac3f 2221 const char *prefix)
db2a4165
FM		 2222{
2223 struct snd_kcontrol_new template;
efb7ac3f
MB		 2224 struct snd_kcontrol *kcontrol;
2225 char *name = NULL;
2226 int name_len;
db2a4165
FM		 2227
2228 memcpy(&template, _template, sizeof(template));
db2a4165
FM		 2229 template.index = 0;
2230
efb7ac3f
MB		 2231 if (!long_name)
2232 long_name = template.name;
2233
2234 if (prefix) {
2235 name_len = strlen(long_name) + strlen(prefix) + 2;
57cf9d45 2236 name = kmalloc(name_len, GFP_KERNEL);
efb7ac3f
MB		 2237 if (!name)
2238 return NULL;
2239
2240 snprintf(name, name_len, "%s %s", prefix, long_name);
2241
2242 template.name = name;
2243 } else {
2244 template.name = long_name;
2245 }
2246
2247 kcontrol = snd_ctl_new1(&template, data);
2248
2249 kfree(name);
2250
2251 return kcontrol;
db2a4165
FM		 2252}
2253EXPORT_SYMBOL_GPL(snd_soc_cnew);
2254
022658be
LG		 2255static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2256 const struct snd_kcontrol_new *controls, int num_controls,
2257 const char *prefix, void *data)
2258{
2259 int err, i;
2260
2261 for (i = 0; i < num_controls; i++) {
2262 const struct snd_kcontrol_new *control = &controls[i];
2263 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2264 control->name, prefix));
2265 if (err < 0) {
2266 dev_err(dev, "Failed to add %s: %d\n", control->name, err);
2267 return err;
2268 }
2269 }
2270
2271 return 0;
2272}
2273
3e8e1952 2274/**
022658be
LG		 2275 * snd_soc_add_codec_controls - add an array of controls to a codec.
2276 * Convenience function to add a list of controls. Many codecs were
3e8e1952
IM		 2277 * duplicating this code.
2278 *
2279 * @codec: codec to add controls to
2280 * @controls: array of controls to add
2281 * @num_controls: number of elements in the array
2282 *
2283 * Return 0 for success, else error.
2284 */
022658be 2285int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
3e8e1952
IM		 2286 const struct snd_kcontrol_new *controls, int num_controls)
2287{
f0fba2ad 2288 struct snd_card *card = codec->card->snd_card;
3e8e1952 2289
022658be
LG		 2290 return snd_soc_add_controls(card, codec->dev, controls, num_controls,
2291 codec->name_prefix, codec);
3e8e1952 2292}
022658be 2293EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
3e8e1952 2294
a491a5c8
LG		 2295/**
2296 * snd_soc_add_platform_controls - add an array of controls to a platform.
022658be 2297 * Convenience function to add a list of controls.
a491a5c8
LG		 2298 *
2299 * @platform: platform to add controls to
2300 * @controls: array of controls to add
2301 * @num_controls: number of elements in the array
2302 *
2303 * Return 0 for success, else error.
2304 */
2305int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
2306 const struct snd_kcontrol_new *controls, int num_controls)
2307{
2308 struct snd_card *card = platform->card->snd_card;
a491a5c8 2309
022658be
LG		 2310 return snd_soc_add_controls(card, platform->dev, controls, num_controls,
2311 NULL, platform);
a491a5c8
LG		 2312}
2313EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2314
022658be
LG		 2315/**
2316 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2317 * Convenience function to add a list of controls.
2318 *
2319 * @soc_card: SoC card to add controls to
2320 * @controls: array of controls to add
2321 * @num_controls: number of elements in the array
2322 *
2323 * Return 0 for success, else error.
2324 */
2325int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2326 const struct snd_kcontrol_new *controls, int num_controls)
2327{
2328 struct snd_card *card = soc_card->snd_card;
2329
2330 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2331 NULL, soc_card);
2332}
2333EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2334
2335/**
2336 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2337 * Convienience function to add a list of controls.
2338 *
2339 * @dai: DAI to add controls to
2340 * @controls: array of controls to add
2341 * @num_controls: number of elements in the array
2342 *
2343 * Return 0 for success, else error.
2344 */
2345int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2346 const struct snd_kcontrol_new *controls, int num_controls)
2347{
2348 struct snd_card *card = dai->card->snd_card;
2349
2350 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2351 NULL, dai);
2352}
2353EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2354
db2a4165
FM		 2355/**
2356 * snd_soc_info_enum_double - enumerated double mixer info callback
2357 * @kcontrol: mixer control
2358 * @uinfo: control element information
2359 *
2360 * Callback to provide information about a double enumerated
2361 * mixer control.
2362 *
2363 * Returns 0 for success.
2364 */
2365int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2366 struct snd_ctl_elem_info *uinfo)
2367{
2368 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2369
2370 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2371 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
f8ba0b7b 2372 uinfo->value.enumerated.items = e->max;
db2a4165 2373
f8ba0b7b
JS		 2374 if (uinfo->value.enumerated.item > e->max - 1)
2375 uinfo->value.enumerated.item = e->max - 1;
db2a4165
FM		 2376 strcpy(uinfo->value.enumerated.name,
2377 e->texts[uinfo->value.enumerated.item]);
2378 return 0;
2379}
2380EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2381
2382/**
2383 * snd_soc_get_enum_double - enumerated double mixer get callback
2384 * @kcontrol: mixer control
ac11a2b3 2385 * @ucontrol: control element information
db2a4165
FM		 2386 *
2387 * Callback to get the value of a double enumerated mixer.
2388 *
2389 * Returns 0 for success.
2390 */
2391int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2392 struct snd_ctl_elem_value *ucontrol)
2393{
2394 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2395 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2396 unsigned int val, bitmask;
db2a4165 2397
f8ba0b7b 2398 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
db2a4165
FM		 2399 ;
2400 val = snd_soc_read(codec, e->reg);
3ff3f64b
MB		 2401 ucontrol->value.enumerated.item[0]
2402 = (val >> e->shift_l) & (bitmask - 1);
db2a4165
FM		 2403 if (e->shift_l != e->shift_r)
2404 ucontrol->value.enumerated.item[1] =
2405 (val >> e->shift_r) & (bitmask - 1);
2406
2407 return 0;
2408}
2409EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2410
2411/**
2412 * snd_soc_put_enum_double - enumerated double mixer put callback
2413 * @kcontrol: mixer control
ac11a2b3 2414 * @ucontrol: control element information
db2a4165
FM		 2415 *
2416 * Callback to set the value of a double enumerated mixer.
2417 *
2418 * Returns 0 for success.
2419 */
2420int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2421 struct snd_ctl_elem_value *ucontrol)
2422{
2423 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2424 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2425 unsigned int val;
2426 unsigned int mask, bitmask;
db2a4165 2427
f8ba0b7b 2428 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
db2a4165 2429 ;
f8ba0b7b 2430 if (ucontrol->value.enumerated.item[0] > e->max - 1)
db2a4165
FM		 2431 return -EINVAL;
2432 val = ucontrol->value.enumerated.item[0] << e->shift_l;
2433 mask = (bitmask - 1) << e->shift_l;
2434 if (e->shift_l != e->shift_r) {
f8ba0b7b 2435 if (ucontrol->value.enumerated.item[1] > e->max - 1)
db2a4165
FM		 2436 return -EINVAL;
2437 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
2438 mask |= (bitmask - 1) << e->shift_r;
2439 }
2440
6c508c62 2441 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
db2a4165
FM		 2442}
2443EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2444
2e72f8e3
PU		 2445/**
2446 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2447 * @kcontrol: mixer control
2448 * @ucontrol: control element information
2449 *
2450 * Callback to get the value of a double semi enumerated mixer.
2451 *
2452 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2453 * used for handling bitfield coded enumeration for example.
2454 *
2455 * Returns 0 for success.
2456 */
2457int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2458 struct snd_ctl_elem_value *ucontrol)
2459{
2460 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2461 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2462 unsigned int reg_val, val, mux;
2e72f8e3
PU		 2463
2464 reg_val = snd_soc_read(codec, e->reg);
2465 val = (reg_val >> e->shift_l) & e->mask;
2466 for (mux = 0; mux < e->max; mux++) {
2467 if (val == e->values[mux])
2468 break;
2469 }
2470 ucontrol->value.enumerated.item[0] = mux;
2471 if (e->shift_l != e->shift_r) {
2472 val = (reg_val >> e->shift_r) & e->mask;
2473 for (mux = 0; mux < e->max; mux++) {
2474 if (val == e->values[mux])
2475 break;
2476 }
2477 ucontrol->value.enumerated.item[1] = mux;
2478 }
2479
2480 return 0;
2481}
2482EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2483
2484/**
2485 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2486 * @kcontrol: mixer control
2487 * @ucontrol: control element information
2488 *
2489 * Callback to set the value of a double semi enumerated mixer.
2490 *
2491 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2492 * used for handling bitfield coded enumeration for example.
2493 *
2494 * Returns 0 for success.
2495 */
2496int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2497 struct snd_ctl_elem_value *ucontrol)
2498{
2499 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2500 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2501 unsigned int val;
2502 unsigned int mask;
2e72f8e3
PU		 2503
2504 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2505 return -EINVAL;
2506 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2507 mask = e->mask << e->shift_l;
2508 if (e->shift_l != e->shift_r) {
2509 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2510 return -EINVAL;
2511 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2512 mask |= e->mask << e->shift_r;
2513 }
2514
6c508c62 2515 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
2e72f8e3
PU		 2516}
2517EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2518
db2a4165
FM		 2519/**
2520 * snd_soc_info_enum_ext - external enumerated single mixer info callback
2521 * @kcontrol: mixer control
2522 * @uinfo: control element information
2523 *
2524 * Callback to provide information about an external enumerated
2525 * single mixer.
2526 *
2527 * Returns 0 for success.
2528 */
2529int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
2530 struct snd_ctl_elem_info *uinfo)
2531{
2532 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2533
2534 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2535 uinfo->count = 1;
f8ba0b7b 2536 uinfo->value.enumerated.items = e->max;
db2a4165 2537
f8ba0b7b
JS		 2538 if (uinfo->value.enumerated.item > e->max - 1)
2539 uinfo->value.enumerated.item = e->max - 1;
db2a4165
FM		 2540 strcpy(uinfo->value.enumerated.name,
2541 e->texts[uinfo->value.enumerated.item]);
2542 return 0;
2543}
2544EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext);
2545
2546/**
2547 * snd_soc_info_volsw_ext - external single mixer info callback
2548 * @kcontrol: mixer control
2549 * @uinfo: control element information
2550 *
2551 * Callback to provide information about a single external mixer control.
2552 *
2553 * Returns 0 for success.
2554 */
2555int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
2556 struct snd_ctl_elem_info *uinfo)
2557{
a7a4ac86
PZ		 2558 int max = kcontrol->private_value;
2559
fd5dfad9 2560 if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2561 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2562 else
2563 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
db2a4165 2564
db2a4165
FM		 2565 uinfo->count = 1;
2566 uinfo->value.integer.min = 0;
a7a4ac86 2567 uinfo->value.integer.max = max;
db2a4165
FM		 2568 return 0;
2569}
2570EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
2571
db2a4165
FM		 2572/**
2573 * snd_soc_info_volsw - single mixer info callback
2574 * @kcontrol: mixer control
2575 * @uinfo: control element information
2576 *
e8f5a103
PU		 2577 * Callback to provide information about a single mixer control, or a double
2578 * mixer control that spans 2 registers.
db2a4165
FM		 2579 *
2580 * Returns 0 for success.
2581 */
2582int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2583 struct snd_ctl_elem_info *uinfo)
2584{
4eaa9819
JS		 2585 struct soc_mixer_control *mc =
2586 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2587 int platform_max;
db2a4165 2588
d11bb4a9
PU		 2589 if (!mc->platform_max)
2590 mc->platform_max = mc->max;
2591 platform_max = mc->platform_max;
2592
2593 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2594 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2595 else
2596 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2597
e8f5a103 2598 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
db2a4165 2599 uinfo->value.integer.min = 0;
d11bb4a9 2600 uinfo->value.integer.max = platform_max;
db2a4165
FM		 2601 return 0;
2602}
2603EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2604
2605/**
2606 * snd_soc_get_volsw - single mixer get callback
2607 * @kcontrol: mixer control
ac11a2b3 2608 * @ucontrol: control element information
db2a4165 2609 *
f7915d99
PU		 2610 * Callback to get the value of a single mixer control, or a double mixer
2611 * control that spans 2 registers.
db2a4165
FM		 2612 *
2613 * Returns 0 for success.
2614 */
2615int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2616 struct snd_ctl_elem_value *ucontrol)
2617{
4eaa9819
JS		 2618 struct soc_mixer_control *mc =
2619 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2620 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2621 unsigned int reg = mc->reg;
f7915d99 2622 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2623 unsigned int shift = mc->shift;
2624 unsigned int rshift = mc->rshift;
4eaa9819 2625 int max = mc->max;
815ecf8d
JS		 2626 unsigned int mask = (1 << fls(max)) - 1;
2627 unsigned int invert = mc->invert;
db2a4165
FM		 2628
2629 ucontrol->value.integer.value[0] =
2630 (snd_soc_read(codec, reg) >> shift) & mask;
f7915d99 2631 if (invert)
db2a4165 2632 ucontrol->value.integer.value[0] =
a7a4ac86 2633 max - ucontrol->value.integer.value[0];
f7915d99
PU		 2634
2635 if (snd_soc_volsw_is_stereo(mc)) {
2636 if (reg == reg2)
2637 ucontrol->value.integer.value[1] =
2638 (snd_soc_read(codec, reg) >> rshift) & mask;
2639 else
2640 ucontrol->value.integer.value[1] =
2641 (snd_soc_read(codec, reg2) >> shift) & mask;
2642 if (invert)
db2a4165 2643 ucontrol->value.integer.value[1] =
a7a4ac86 2644 max - ucontrol->value.integer.value[1];
db2a4165
FM		 2645 }
2646
2647 return 0;
2648}
2649EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2650
2651/**
2652 * snd_soc_put_volsw - single mixer put callback
2653 * @kcontrol: mixer control
ac11a2b3 2654 * @ucontrol: control element information
db2a4165 2655 *
974815ba
PU		 2656 * Callback to set the value of a single mixer control, or a double mixer
2657 * control that spans 2 registers.
db2a4165
FM		 2658 *
2659 * Returns 0 for success.
2660 */
2661int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2662 struct snd_ctl_elem_value *ucontrol)
2663{
4eaa9819
JS		 2664 struct soc_mixer_control *mc =
2665 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2666 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2667 unsigned int reg = mc->reg;
974815ba 2668 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2669 unsigned int shift = mc->shift;
2670 unsigned int rshift = mc->rshift;
4eaa9819 2671 int max = mc->max;
815ecf8d
JS		 2672 unsigned int mask = (1 << fls(max)) - 1;
2673 unsigned int invert = mc->invert;
974815ba
PU		 2674 int err;
2675 bool type_2r = 0;
2676 unsigned int val2 = 0;
2677 unsigned int val, val_mask;
db2a4165
FM		 2678
2679 val = (ucontrol->value.integer.value[0] & mask);
2680 if (invert)
a7a4ac86 2681 val = max - val;
db2a4165
FM		 2682 val_mask = mask << shift;
2683 val = val << shift;
974815ba 2684 if (snd_soc_volsw_is_stereo(mc)) {
db2a4165
FM		 2685 val2 = (ucontrol->value.integer.value[1] & mask);
2686 if (invert)
a7a4ac86 2687 val2 = max - val2;
974815ba
PU		 2688 if (reg == reg2) {
2689 val_mask |= mask << rshift;
2690 val |= val2 << rshift;
2691 } else {
2692 val2 = val2 << shift;
2693 type_2r = 1;
2694 }
db2a4165 2695 }
6c508c62 2696 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
3ff3f64b 2697 if (err < 0)
db2a4165
FM		 2698 return err;
2699
974815ba
PU		 2700 if (type_2r)
2701 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
2702
db2a4165
FM		 2703 return err;
2704}
974815ba 2705EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
db2a4165 2706
1d99f243
BA		 2707/**
2708 * snd_soc_get_volsw_sx - single mixer get callback
2709 * @kcontrol: mixer control
2710 * @ucontrol: control element information
2711 *
2712 * Callback to get the value of a single mixer control, or a double mixer
2713 * control that spans 2 registers.
2714 *
2715 * Returns 0 for success.
2716 */
2717int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
2718 struct snd_ctl_elem_value *ucontrol)
2719{
2720 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2721 struct soc_mixer_control *mc =
2722 (struct soc_mixer_control *)kcontrol->private_value;
2723
2724 unsigned int reg = mc->reg;
2725 unsigned int reg2 = mc->rreg;
2726 unsigned int shift = mc->shift;
2727 unsigned int rshift = mc->rshift;
2728 int max = mc->max;
2729 int min = mc->min;
2730 int mask = (1 << (fls(min + max) - 1)) - 1;
2731
2732 ucontrol->value.integer.value[0] =
2733 ((snd_soc_read(codec, reg) >> shift) - min) & mask;
2734
2735 if (snd_soc_volsw_is_stereo(mc))
2736 ucontrol->value.integer.value[1] =
2737 ((snd_soc_read(codec, reg2) >> rshift) - min) & mask;
2738
2739 return 0;
2740}
2741EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
2742
2743/**
2744 * snd_soc_put_volsw_sx - double mixer set callback
2745 * @kcontrol: mixer control
2746 * @uinfo: control element information
2747 *
2748 * Callback to set the value of a double mixer control that spans 2 registers.
2749 *
2750 * Returns 0 for success.
2751 */
2752int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
2753 struct snd_ctl_elem_value *ucontrol)
2754{
2755 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2756 struct soc_mixer_control *mc =
2757 (struct soc_mixer_control *)kcontrol->private_value;
2758
2759 unsigned int reg = mc->reg;
2760 unsigned int reg2 = mc->rreg;
2761 unsigned int shift = mc->shift;
2762 unsigned int rshift = mc->rshift;
2763 int max = mc->max;
2764 int min = mc->min;
2765 int mask = (1 << (fls(min + max) - 1)) - 1;
27f1d759 2766 int err = 0;
1d99f243
BA		 2767 unsigned short val, val_mask, val2 = 0;
2768
2769 val_mask = mask << shift;
2770 val = (ucontrol->value.integer.value[0] + min) & mask;
2771 val = val << shift;
2772
2773 if (snd_soc_update_bits_locked(codec, reg, val_mask, val))
2774 return err;
2775
2776 if (snd_soc_volsw_is_stereo(mc)) {
2777 val_mask = mask << rshift;
2778 val2 = (ucontrol->value.integer.value[1] + min) & mask;
2779 val2 = val2 << rshift;
2780
2781 if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2))
2782 return err;
2783 }
2784 return 0;
2785}
2786EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
2787
e13ac2e9
MB		 2788/**
2789 * snd_soc_info_volsw_s8 - signed mixer info callback
2790 * @kcontrol: mixer control
2791 * @uinfo: control element information
2792 *
2793 * Callback to provide information about a signed mixer control.
2794 *
2795 * Returns 0 for success.
2796 */
2797int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2798 struct snd_ctl_elem_info *uinfo)
2799{
4eaa9819
JS		 2800 struct soc_mixer_control *mc =
2801 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2802 int platform_max;
4eaa9819 2803 int min = mc->min;
e13ac2e9 2804
d11bb4a9
PU		 2805 if (!mc->platform_max)
2806 mc->platform_max = mc->max;
2807 platform_max = mc->platform_max;
2808
e13ac2e9
MB		 2809 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2810 uinfo->count = 2;
2811 uinfo->value.integer.min = 0;
d11bb4a9 2812 uinfo->value.integer.max = platform_max - min;
e13ac2e9
MB		 2813 return 0;
2814}
2815EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2816
2817/**
2818 * snd_soc_get_volsw_s8 - signed mixer get callback
2819 * @kcontrol: mixer control
ac11a2b3 2820 * @ucontrol: control element information
e13ac2e9
MB		 2821 *
2822 * Callback to get the value of a signed mixer control.
2823 *
2824 * Returns 0 for success.
2825 */
2826int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2827 struct snd_ctl_elem_value *ucontrol)
2828{
4eaa9819
JS		 2829 struct soc_mixer_control *mc =
2830 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2831 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2832 unsigned int reg = mc->reg;
4eaa9819 2833 int min = mc->min;
e13ac2e9
MB		 2834 int val = snd_soc_read(codec, reg);
2835
2836 ucontrol->value.integer.value[0] =
2837 ((signed char)(val & 0xff))-min;
2838 ucontrol->value.integer.value[1] =
2839 ((signed char)((val >> 8) & 0xff))-min;
2840 return 0;
2841}
2842EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2843
2844/**
2845 * snd_soc_put_volsw_sgn - signed mixer put callback
2846 * @kcontrol: mixer control
ac11a2b3 2847 * @ucontrol: control element information
e13ac2e9
MB		 2848 *
2849 * Callback to set the value of a signed mixer control.
2850 *
2851 * Returns 0 for success.
2852 */
2853int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
2854 struct snd_ctl_elem_value *ucontrol)
2855{
4eaa9819
JS		 2856 struct soc_mixer_control *mc =
2857 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2858 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2859 unsigned int reg = mc->reg;
4eaa9819 2860 int min = mc->min;
46f5822f 2861 unsigned int val;
e13ac2e9
MB		 2862
2863 val = (ucontrol->value.integer.value[0]+min) & 0xff;
2864 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
2865
6c508c62 2866 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
e13ac2e9
MB		 2867}
2868EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
2869
6c9d8cf6
AT		 2870/**
2871 * snd_soc_info_volsw_range - single mixer info callback with range.
2872 * @kcontrol: mixer control
2873 * @uinfo: control element information
2874 *
2875 * Callback to provide information, within a range, about a single
2876 * mixer control.
2877 *
2878 * returns 0 for success.
2879 */
2880int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
2881 struct snd_ctl_elem_info *uinfo)
2882{
2883 struct soc_mixer_control *mc =
2884 (struct soc_mixer_control *)kcontrol->private_value;
2885 int platform_max;
2886 int min = mc->min;
2887
2888 if (!mc->platform_max)
2889 mc->platform_max = mc->max;
2890 platform_max = mc->platform_max;
2891
2892 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2893 uinfo->count = 1;
2894 uinfo->value.integer.min = 0;
2895 uinfo->value.integer.max = platform_max - min;
2896
2897 return 0;
2898}
2899EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
2900
2901/**
2902 * snd_soc_put_volsw_range - single mixer put value callback with range.
2903 * @kcontrol: mixer control
2904 * @ucontrol: control element information
2905 *
2906 * Callback to set the value, within a range, for a single mixer control.
2907 *
2908 * Returns 0 for success.
2909 */
2910int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
2911 struct snd_ctl_elem_value *ucontrol)
2912{
2913 struct soc_mixer_control *mc =
2914 (struct soc_mixer_control *)kcontrol->private_value;
2915 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2916 unsigned int reg = mc->reg;
2917 unsigned int shift = mc->shift;
2918 int min = mc->min;
2919 int max = mc->max;
2920 unsigned int mask = (1 << fls(max)) - 1;
2921 unsigned int invert = mc->invert;
2922 unsigned int val, val_mask;
2923
2924 val = ((ucontrol->value.integer.value[0] + min) & mask);
2925 if (invert)
2926 val = max - val;
2927 val_mask = mask << shift;
2928 val = val << shift;
2929
2930 return snd_soc_update_bits_locked(codec, reg, val_mask, val);
2931}
2932EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
2933
2934/**
2935 * snd_soc_get_volsw_range - single mixer get callback with range
2936 * @kcontrol: mixer control
2937 * @ucontrol: control element information
2938 *
2939 * Callback to get the value, within a range, of a single mixer control.
2940 *
2941 * Returns 0 for success.
2942 */
2943int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
2944 struct snd_ctl_elem_value *ucontrol)
2945{
2946 struct soc_mixer_control *mc =
2947 (struct soc_mixer_control *)kcontrol->private_value;
2948 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2949 unsigned int reg = mc->reg;
2950 unsigned int shift = mc->shift;
2951 int min = mc->min;
2952 int max = mc->max;
2953 unsigned int mask = (1 << fls(max)) - 1;
2954 unsigned int invert = mc->invert;
2955
2956 ucontrol->value.integer.value[0] =
2957 (snd_soc_read(codec, reg) >> shift) & mask;
2958 if (invert)
2959 ucontrol->value.integer.value[0] =
2960 max - ucontrol->value.integer.value[0];
2961 ucontrol->value.integer.value[0] =
2962 ucontrol->value.integer.value[0] - min;
2963
2964 return 0;
2965}
2966EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
2967
637d3847
PU		 2968/**
2969 * snd_soc_limit_volume - Set new limit to an existing volume control.
2970 *
2971 * @codec: where to look for the control
2972 * @name: Name of the control
2973 * @max: new maximum limit
2974 *
2975 * Return 0 for success, else error.
2976 */
2977int snd_soc_limit_volume(struct snd_soc_codec *codec,
2978 const char *name, int max)
2979{
f0fba2ad 2980 struct snd_card *card = codec->card->snd_card;
637d3847
PU		 2981 struct snd_kcontrol *kctl;
2982 struct soc_mixer_control *mc;
2983 int found = 0;
2984 int ret = -EINVAL;
2985
2986 /* Sanity check for name and max */
2987 if (unlikely(!name || max <= 0))
2988 return -EINVAL;
2989
2990 list_for_each_entry(kctl, &card->controls, list) {
2991 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
2992 found = 1;
2993 break;
2994 }
2995 }
2996 if (found) {
2997 mc = (struct soc_mixer_control *)kctl->private_value;
2998 if (max <= mc->max) {
d11bb4a9 2999 mc->platform_max = max;
637d3847
PU		 3000 ret = 0;
3001 }
3002 }
3003 return ret;
3004}
3005EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
3006
71d08516
MB		 3007int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
3008 struct snd_ctl_elem_info *uinfo)
3009{
3010 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3011 struct soc_bytes *params = (void *)kcontrol->private_value;
3012
3013 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
3014 uinfo->count = params->num_regs * codec->val_bytes;
3015
3016 return 0;
3017}
3018EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
3019
3020int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
3021 struct snd_ctl_elem_value *ucontrol)
3022{
3023 struct soc_bytes *params = (void *)kcontrol->private_value;
3024 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3025 int ret;
3026
3027 if (codec->using_regmap)
3028 ret = regmap_raw_read(codec->control_data, params->base,
3029 ucontrol->value.bytes.data,
3030 params->num_regs * codec->val_bytes);
3031 else
3032 ret = -EINVAL;
3033
f831b055
MB		 3034 /* Hide any masked bytes to ensure consistent data reporting */
3035 if (ret == 0 && params->mask) {
3036 switch (codec->val_bytes) {
3037 case 1:
3038 ucontrol->value.bytes.data[0] &= ~params->mask;
3039 break;
3040 case 2:
3041 ((u16 *)(&ucontrol->value.bytes.data))[0]
3042 &= ~params->mask;
3043 break;
3044 case 4:
3045 ((u32 *)(&ucontrol->value.bytes.data))[0]
3046 &= ~params->mask;
3047 break;
3048 default:
3049 return -EINVAL;
3050 }
3051 }
3052
71d08516
MB		 3053 return ret;
3054}
3055EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
3056
3057int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
3058 struct snd_ctl_elem_value *ucontrol)
3059{
3060 struct soc_bytes *params = (void *)kcontrol->private_value;
3061 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
f831b055
MB		 3062 int ret, len;
3063 unsigned int val;
3064 void *data;
71d08516 3065
f831b055
MB		 3066 if (!codec->using_regmap)
3067 return -EINVAL;
3068
3069 data = ucontrol->value.bytes.data;
3070 len = params->num_regs * codec->val_bytes;
3071
3072 /*
3073 * If we've got a mask then we need to preserve the register
3074 * bits. We shouldn't modify the incoming data so take a
3075 * copy.
3076 */
3077 if (params->mask) {
3078 ret = regmap_read(codec->control_data, params->base, &val);
3079 if (ret != 0)
3080 return ret;
3081
3082 val &= params->mask;
3083
3084 data = kmemdup(data, len, GFP_KERNEL);
3085 if (!data)
3086 return -ENOMEM;
3087
3088 switch (codec->val_bytes) {
3089 case 1:
3090 ((u8 *)data)[0] &= ~params->mask;
3091 ((u8 *)data)[0] |= val;
3092 break;
3093 case 2:
3094 ((u16 *)data)[0] &= cpu_to_be16(~params->mask);
3095 ((u16 *)data)[0] |= cpu_to_be16(val);
3096 break;
3097 case 4:
3098 ((u32 *)data)[0] &= cpu_to_be32(~params->mask);
3099 ((u32 *)data)[0] |= cpu_to_be32(val);
3100 break;
3101 default:
3102 return -EINVAL;
3103 }
3104 }
3105
3106 ret = regmap_raw_write(codec->control_data, params->base,
3107 data, len);
3108
3109 if (params->mask)
3110 kfree(data);
71d08516
MB		 3111
3112 return ret;
3113}
3114EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
3115
4183eed2
KK		 3116/**
3117 * snd_soc_info_xr_sx - signed multi register info callback
3118 * @kcontrol: mreg control
3119 * @uinfo: control element information
3120 *
3121 * Callback to provide information of a control that can
3122 * span multiple codec registers which together
3123 * forms a single signed value in a MSB/LSB manner.
3124 *
3125 * Returns 0 for success.
3126 */
3127int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
3128 struct snd_ctl_elem_info *uinfo)
3129{
3130 struct soc_mreg_control *mc =
3131 (struct soc_mreg_control *)kcontrol->private_value;
3132 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3133 uinfo->count = 1;
3134 uinfo->value.integer.min = mc->min;
3135 uinfo->value.integer.max = mc->max;
3136
3137 return 0;
3138}
3139EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
3140
3141/**
3142 * snd_soc_get_xr_sx - signed multi register get callback
3143 * @kcontrol: mreg control
3144 * @ucontrol: control element information
3145 *
3146 * Callback to get the value of a control that can span
3147 * multiple codec registers which together forms a single
3148 * signed value in a MSB/LSB manner. The control supports
3149 * specifying total no of bits used to allow for bitfields
3150 * across the multiple codec registers.
3151 *
3152 * Returns 0 for success.
3153 */
3154int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
3155 struct snd_ctl_elem_value *ucontrol)
3156{
3157 struct soc_mreg_control *mc =
3158 (struct soc_mreg_control *)kcontrol->private_value;
3159 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3160 unsigned int regbase = mc->regbase;
3161 unsigned int regcount = mc->regcount;
3162 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3163 unsigned int regwmask = (1<<regwshift)-1;
3164 unsigned int invert = mc->invert;
3165 unsigned long mask = (1UL<<mc->nbits)-1;
3166 long min = mc->min;
3167 long max = mc->max;
3168 long val = 0;
3169 unsigned long regval;
3170 unsigned int i;
3171
3172 for (i = 0; i < regcount; i++) {
3173 regval = snd_soc_read(codec, regbase+i) & regwmask;
3174 val |= regval << (regwshift*(regcount-i-1));
3175 }
3176 val &= mask;
3177 if (min < 0 && val > max)
3178 val |= ~mask;
3179 if (invert)
3180 val = max - val;
3181 ucontrol->value.integer.value[0] = val;
3182
3183 return 0;
3184}
3185EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
3186
3187/**
3188 * snd_soc_put_xr_sx - signed multi register get callback
3189 * @kcontrol: mreg control
3190 * @ucontrol: control element information
3191 *
3192 * Callback to set the value of a control that can span
3193 * multiple codec registers which together forms a single
3194 * signed value in a MSB/LSB manner. The control supports
3195 * specifying total no of bits used to allow for bitfields
3196 * across the multiple codec registers.
3197 *
3198 * Returns 0 for success.
3199 */
3200int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
3201 struct snd_ctl_elem_value *ucontrol)
3202{
3203 struct soc_mreg_control *mc =
3204 (struct soc_mreg_control *)kcontrol->private_value;
3205 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3206 unsigned int regbase = mc->regbase;
3207 unsigned int regcount = mc->regcount;
3208 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3209 unsigned int regwmask = (1<<regwshift)-1;
3210 unsigned int invert = mc->invert;
3211 unsigned long mask = (1UL<<mc->nbits)-1;
4183eed2
KK		 3212 long max = mc->max;
3213 long val = ucontrol->value.integer.value[0];
3214 unsigned int i, regval, regmask;
3215 int err;
3216
3217 if (invert)
3218 val = max - val;
3219 val &= mask;
3220 for (i = 0; i < regcount; i++) {
3221 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
3222 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
3223 err = snd_soc_update_bits_locked(codec, regbase+i,
3224 regmask, regval);
3225 if (err < 0)
3226 return err;
3227 }
3228
3229 return 0;
3230}
3231EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
3232
dd7b10b3
KK		 3233/**
3234 * snd_soc_get_strobe - strobe get callback
3235 * @kcontrol: mixer control
3236 * @ucontrol: control element information
3237 *
3238 * Callback get the value of a strobe mixer control.
3239 *
3240 * Returns 0 for success.
3241 */
3242int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
3243 struct snd_ctl_elem_value *ucontrol)
3244{
3245 struct soc_mixer_control *mc =
3246 (struct soc_mixer_control *)kcontrol->private_value;
3247 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3248 unsigned int reg = mc->reg;
3249 unsigned int shift = mc->shift;
3250 unsigned int mask = 1 << shift;
3251 unsigned int invert = mc->invert != 0;
3252 unsigned int val = snd_soc_read(codec, reg) & mask;
3253
3254 if (shift != 0 && val != 0)
3255 val = val >> shift;
3256 ucontrol->value.enumerated.item[0] = val ^ invert;
3257
3258 return 0;
3259}
3260EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
3261
3262/**
3263 * snd_soc_put_strobe - strobe put callback
3264 * @kcontrol: mixer control
3265 * @ucontrol: control element information
3266 *
3267 * Callback strobe a register bit to high then low (or the inverse)
3268 * in one pass of a single mixer enum control.
3269 *
3270 * Returns 1 for success.
3271 */
3272int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
3273 struct snd_ctl_elem_value *ucontrol)
3274{
3275 struct soc_mixer_control *mc =
3276 (struct soc_mixer_control *)kcontrol->private_value;
3277 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3278 unsigned int reg = mc->reg;
3279 unsigned int shift = mc->shift;
3280 unsigned int mask = 1 << shift;
3281 unsigned int invert = mc->invert != 0;
3282 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
3283 unsigned int val1 = (strobe ^ invert) ? mask : 0;
3284 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
3285 int err;
3286
3287 err = snd_soc_update_bits_locked(codec, reg, mask, val1);
3288 if (err < 0)
3289 return err;
3290
3291 err = snd_soc_update_bits_locked(codec, reg, mask, val2);
3292 return err;
3293}
3294EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
3295
8c6529db
LG		 3296/**
3297 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3298 * @dai: DAI
3299 * @clk_id: DAI specific clock ID
3300 * @freq: new clock frequency in Hz
3301 * @dir: new clock direction - input/output.
3302 *
3303 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3304 */
3305int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
3306 unsigned int freq, int dir)
3307{
f0fba2ad
LG		 3308 if (dai->driver && dai->driver->ops->set_sysclk)
3309 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
ec4ee52a 3310 else if (dai->codec && dai->codec->driver->set_sysclk)
da1c6ea6 3311 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
ec4ee52a 3312 freq, dir);
8c6529db
LG		 3313 else
3314 return -EINVAL;
3315}
3316EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
3317
ec4ee52a
MB		 3318/**
3319 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3320 * @codec: CODEC
3321 * @clk_id: DAI specific clock ID
da1c6ea6 3322 * @source: Source for the clock
ec4ee52a
MB		 3323 * @freq: new clock frequency in Hz
3324 * @dir: new clock direction - input/output.
3325 *
3326 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3327 */
3328int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
da1c6ea6 3329 int source, unsigned int freq, int dir)
ec4ee52a
MB		 3330{
3331 if (codec->driver->set_sysclk)
da1c6ea6
MB		 3332 return codec->driver->set_sysclk(codec, clk_id, source,
3333 freq, dir);
ec4ee52a
MB		 3334 else
3335 return -EINVAL;
3336}
3337EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
3338
8c6529db
LG		 3339/**
3340 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3341 * @dai: DAI
ac11a2b3 3342 * @div_id: DAI specific clock divider ID
8c6529db
LG		 3343 * @div: new clock divisor.
3344 *
3345 * Configures the clock dividers. This is used to derive the best DAI bit and
3346 * frame clocks from the system or master clock. It's best to set the DAI bit
3347 * and frame clocks as low as possible to save system power.
3348 */
3349int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
3350 int div_id, int div)
3351{
f0fba2ad
LG		 3352 if (dai->driver && dai->driver->ops->set_clkdiv)
3353 return dai->driver->ops->set_clkdiv(dai, div_id, div);
8c6529db
LG		 3354 else
3355 return -EINVAL;
3356}
3357EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
3358
3359/**
3360 * snd_soc_dai_set_pll - configure DAI PLL.
3361 * @dai: DAI
3362 * @pll_id: DAI specific PLL ID
85488037 3363 * @source: DAI specific source for the PLL
8c6529db
LG		 3364 * @freq_in: PLL input clock frequency in Hz
3365 * @freq_out: requested PLL output clock frequency in Hz
3366 *
3367 * Configures and enables PLL to generate output clock based on input clock.
3368 */
85488037
MB		 3369int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
3370 unsigned int freq_in, unsigned int freq_out)
8c6529db 3371{
f0fba2ad
LG		 3372 if (dai->driver && dai->driver->ops->set_pll)
3373 return dai->driver->ops->set_pll(dai, pll_id, source,
85488037 3374 freq_in, freq_out);
ec4ee52a
MB		 3375 else if (dai->codec && dai->codec->driver->set_pll)
3376 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
3377 freq_in, freq_out);
8c6529db
LG		 3378 else
3379 return -EINVAL;
3380}
3381EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
3382
ec4ee52a
MB		 3383/*
3384 * snd_soc_codec_set_pll - configure codec PLL.
3385 * @codec: CODEC
3386 * @pll_id: DAI specific PLL ID
3387 * @source: DAI specific source for the PLL
3388 * @freq_in: PLL input clock frequency in Hz
3389 * @freq_out: requested PLL output clock frequency in Hz
3390 *
3391 * Configures and enables PLL to generate output clock based on input clock.
3392 */
3393int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
3394 unsigned int freq_in, unsigned int freq_out)
3395{
3396 if (codec->driver->set_pll)
3397 return codec->driver->set_pll(codec, pll_id, source,
3398 freq_in, freq_out);
3399 else
3400 return -EINVAL;
3401}
3402EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
3403
8c6529db
LG		 3404/**
3405 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3406 * @dai: DAI
8c6529db
LG		 3407 * @fmt: SND_SOC_DAIFMT_ format value.
3408 *
3409 * Configures the DAI hardware format and clocking.
3410 */
3411int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
3412{
5e4ba569 3413 if (dai->driver == NULL)
8c6529db 3414 return -EINVAL;
5e4ba569
SG		 3415 if (dai->driver->ops->set_fmt == NULL)
3416 return -ENOTSUPP;
3417 return dai->driver->ops->set_fmt(dai, fmt);
8c6529db
LG		 3418}
3419EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
3420
3421/**
3422 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3423 * @dai: DAI
a5479e38
DR		 3424 * @tx_mask: bitmask representing active TX slots.
3425 * @rx_mask: bitmask representing active RX slots.
8c6529db 3426 * @slots: Number of slots in use.
a5479e38 3427 * @slot_width: Width in bits for each slot.
8c6529db
LG		 3428 *
3429 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3430 * specific.
3431 */
3432int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
a5479e38 3433 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
8c6529db 3434{
f0fba2ad
LG		 3435 if (dai->driver && dai->driver->ops->set_tdm_slot)
3436 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
a5479e38 3437 slots, slot_width);
8c6529db
LG		 3438 else
3439 return -EINVAL;
3440}
3441EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
3442
472df3cb
BS		 3443/**
3444 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3445 * @dai: DAI
3446 * @tx_num: how many TX channels
3447 * @tx_slot: pointer to an array which imply the TX slot number channel
3448 * 0~num-1 uses
3449 * @rx_num: how many RX channels
3450 * @rx_slot: pointer to an array which imply the RX slot number channel
3451 * 0~num-1 uses
3452 *
3453 * configure the relationship between channel number and TDM slot number.
3454 */
3455int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3456 unsigned int tx_num, unsigned int *tx_slot,
3457 unsigned int rx_num, unsigned int *rx_slot)
3458{
f0fba2ad
LG		 3459 if (dai->driver && dai->driver->ops->set_channel_map)
3460 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
472df3cb
BS		 3461 rx_num, rx_slot);
3462 else
3463 return -EINVAL;
3464}
3465EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3466
8c6529db
LG		 3467/**
3468 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3469 * @dai: DAI
3470 * @tristate: tristate enable
3471 *
3472 * Tristates the DAI so that others can use it.
3473 */
3474int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3475{
f0fba2ad
LG		 3476 if (dai->driver && dai->driver->ops->set_tristate)
3477 return dai->driver->ops->set_tristate(dai, tristate);
8c6529db
LG		 3478 else
3479 return -EINVAL;
3480}
3481EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3482
3483/**
3484 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3485 * @dai: DAI
3486 * @mute: mute enable
3487 *
3488 * Mutes the DAI DAC.
3489 */
3490int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
3491{
f0fba2ad
LG		 3492 if (dai->driver && dai->driver->ops->digital_mute)
3493 return dai->driver->ops->digital_mute(dai, mute);
8c6529db 3494 else
04570c62 3495 return -ENOTSUPP;
8c6529db
LG		 3496}
3497EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3498
c5af3a2e
MB		 3499/**
3500 * snd_soc_register_card - Register a card with the ASoC core
3501 *
ac11a2b3 3502 * @card: Card to register
c5af3a2e 3503 *
c5af3a2e 3504 */
70a7ca34 3505int snd_soc_register_card(struct snd_soc_card *card)
c5af3a2e 3506{
b19e6e7b 3507 int i, ret;
f0fba2ad 3508
c5af3a2e
MB		 3509 if (!card->name || !card->dev)
3510 return -EINVAL;
3511
5a504963
SW		 3512 for (i = 0; i < card->num_links; i++) {
3513 struct snd_soc_dai_link *link = &card->dai_link[i];
3514
3515 /*
3516 * Codec must be specified by 1 of name or OF node,
3517 * not both or neither.
3518 */
3519 if (!!link->codec_name == !!link->codec_of_node) {
3520 dev_err(card->dev,
3b09bb82
LG		 3521 "Neither/both codec name/of_node are set for %s\n",
3522 link->name);
5a504963
SW		 3523 return -EINVAL;
3524 }
bc92657a
SW		 3525 /* Codec DAI name must be specified */
3526 if (!link->codec_dai_name) {
3527 dev_err(card->dev, "codec_dai_name not set for %s\n",
3528 link->name);
3529 return -EINVAL;
3530 }
5a504963
SW		 3531
3532 /*
3533 * Platform may be specified by either name or OF node, but
3534 * can be left unspecified, and a dummy platform will be used.
3535 */
3536 if (link->platform_name && link->platform_of_node) {
3537 dev_err(card->dev,
3b09bb82 3538 "Both platform name/of_node are set for %s\n", link->name);
5a504963
SW		 3539 return -EINVAL;
3540 }
3541
3542 /*
bc92657a
SW		 3543 * CPU device may be specified by either name or OF node, but
3544 * can be left unspecified, and will be matched based on DAI
3545 * name alone..
3546 */
3547 if (link->cpu_name && link->cpu_of_node) {
3548 dev_err(card->dev,
3549 "Neither/both cpu name/of_node are set for %s\n",
3550 link->name);
3551 return -EINVAL;
3552 }
3553 /*
3554 * At least one of CPU DAI name or CPU device name/node must be
3555 * specified
5a504963 3556 */
bc92657a
SW		 3557 if (!link->cpu_dai_name &&
3558 !(link->cpu_name || link->cpu_of_node)) {
5a504963 3559 dev_err(card->dev,
bc92657a 3560 "Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
3b09bb82 3561 link->name);
5a504963
SW		 3562 return -EINVAL;
3563 }
3564 }
3565
ed77cc12
MB		 3566 dev_set_drvdata(card->dev, card);
3567
111c6419
SW		 3568 snd_soc_initialize_card_lists(card);
3569
150dd2f8
VK		 3570 soc_init_card_debugfs(card);
3571
181a6892
MB		 3572 card->rtd = devm_kzalloc(card->dev,
3573 sizeof(struct snd_soc_pcm_runtime) *
3574 (card->num_links + card->num_aux_devs),
3575 GFP_KERNEL);
f0fba2ad
LG		 3576 if (card->rtd == NULL)
3577 return -ENOMEM;
a7dbb603 3578 card->num_rtd = 0;
2eea392d 3579 card->rtd_aux = &card->rtd[card->num_links];
f0fba2ad
LG		 3580
3581 for (i = 0; i < card->num_links; i++)
3582 card->rtd[i].dai_link = &card->dai_link[i];
3583
c5af3a2e 3584 INIT_LIST_HEAD(&card->list);
db432b41 3585 INIT_LIST_HEAD(&card->dapm_dirty);
c5af3a2e 3586 card->instantiated = 0;
f0fba2ad 3587 mutex_init(&card->mutex);
a73fb2df 3588 mutex_init(&card->dapm_mutex);
c5af3a2e 3589
b19e6e7b
MB		 3590 ret = snd_soc_instantiate_card(card);
3591 if (ret != 0)
3592 soc_cleanup_card_debugfs(card);
c5af3a2e 3593
b19e6e7b 3594 return ret;
c5af3a2e 3595}
70a7ca34 3596EXPORT_SYMBOL_GPL(snd_soc_register_card);
c5af3a2e
MB		 3597
3598/**
3599 * snd_soc_unregister_card - Unregister a card with the ASoC core
3600 *
ac11a2b3 3601 * @card: Card to unregister
c5af3a2e 3602 *
c5af3a2e 3603 */
70a7ca34 3604int snd_soc_unregister_card(struct snd_soc_card *card)
c5af3a2e 3605{
b0e26485
VK		 3606 if (card->instantiated)
3607 soc_cleanup_card_resources(card);
c5af3a2e
MB		 3608 dev_dbg(card->dev, "Unregistered card '%s'\n", card->name);
3609
3610 return 0;
3611}
70a7ca34 3612EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
c5af3a2e 3613
f0fba2ad
LG		 3614/*
3615 * Simplify DAI link configuration by removing ".-1" from device names
3616 * and sanitizing names.
3617 */
0b9a214a 3618static char *fmt_single_name(struct device *dev, int *id)
f0fba2ad
LG		 3619{
3620 char *found, name[NAME_SIZE];
3621 int id1, id2;
3622
3623 if (dev_name(dev) == NULL)
3624 return NULL;
3625
58818a77 3626 strlcpy(name, dev_name(dev), NAME_SIZE);
f0fba2ad
LG		 3627
3628 /* are we a "%s.%d" name (platform and SPI components) */
3629 found = strstr(name, dev->driver->name);
3630 if (found) {
3631 /* get ID */
3632 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3633
3634 /* discard ID from name if ID == -1 */
3635 if (*id == -1)
3636 found[strlen(dev->driver->name)] = '\0';
3637 }
3638
3639 } else {
3640 /* I2C component devices are named "bus-addr" */
3641 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3642 char tmp[NAME_SIZE];
3643
3644 /* create unique ID number from I2C addr and bus */
05899446 3645 *id = ((id1 & 0xffff) << 16) + id2;
f0fba2ad
LG		 3646
3647 /* sanitize component name for DAI link creation */
3648 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
58818a77 3649 strlcpy(name, tmp, NAME_SIZE);
f0fba2ad
LG		 3650 } else
3651 *id = 0;
3652 }
3653
3654 return kstrdup(name, GFP_KERNEL);
3655}
3656
3657/*
3658 * Simplify DAI link naming for single devices with multiple DAIs by removing
3659 * any ".-1" and using the DAI name (instead of device name).
3660 */
3661static inline char *fmt_multiple_name(struct device *dev,
3662 struct snd_soc_dai_driver *dai_drv)
3663{
3664 if (dai_drv->name == NULL) {
0837fc62 3665 pr_err("asoc: error - multiple DAI %s registered with no name\n",
f0fba2ad
LG		 3666 dev_name(dev));
3667 return NULL;
3668 }
3669
3670 return kstrdup(dai_drv->name, GFP_KERNEL);
3671}
3672
9115171a
MB		 3673/**
3674 * snd_soc_register_dai - Register a DAI with the ASoC core
3675 *
ac11a2b3 3676 * @dai: DAI to register
9115171a 3677 */
f0fba2ad
LG		 3678int snd_soc_register_dai(struct device *dev,
3679 struct snd_soc_dai_driver *dai_drv)
9115171a 3680{
054880fe 3681 struct snd_soc_codec *codec;
f0fba2ad
LG		 3682 struct snd_soc_dai *dai;
3683
3684 dev_dbg(dev, "dai register %s\n", dev_name(dev));
9115171a 3685
f0fba2ad
LG		 3686 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
3687 if (dai == NULL)
a7393623 3688 return -ENOMEM;
9115171a 3689
f0fba2ad
LG		 3690 /* create DAI component name */
3691 dai->name = fmt_single_name(dev, &dai->id);
3692 if (dai->name == NULL) {
3693 kfree(dai);
3694 return -ENOMEM;
3695 }
6335d055 3696
f0fba2ad
LG		 3697 dai->dev = dev;
3698 dai->driver = dai_drv;
be09ad90 3699 dai->dapm.dev = dev;
f0fba2ad
LG		 3700 if (!dai->driver->ops)
3701 dai->driver->ops = &null_dai_ops;
9115171a
MB		 3702
3703 mutex_lock(&client_mutex);
054880fe
MB		 3704
3705 list_for_each_entry(codec, &codec_list, list) {
3706 if (codec->dev == dev) {
3707 dev_dbg(dev, "Mapped DAI %s to CODEC %s\n",
3708 dai->name, codec->name);
3709 dai->codec = codec;
3710 break;
3711 }
3712 }
3713
9115171a 3714 list_add(&dai->list, &dai_list);
054880fe 3715
9115171a
MB		 3716 mutex_unlock(&client_mutex);
3717
3718 pr_debug("Registered DAI '%s'\n", dai->name);
3719
3720 return 0;
3721}
3722EXPORT_SYMBOL_GPL(snd_soc_register_dai);
3723
3724/**
3725 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3726 *
ac11a2b3 3727 * @dai: DAI to unregister
9115171a 3728 */
f0fba2ad 3729void snd_soc_unregister_dai(struct device *dev)
9115171a 3730{
f0fba2ad
LG		 3731 struct snd_soc_dai *dai;
3732
3733 list_for_each_entry(dai, &dai_list, list) {
3734 if (dev == dai->dev)
3735 goto found;
3736 }
3737 return;
3738
3739found:
9115171a
MB		 3740 mutex_lock(&client_mutex);
3741 list_del(&dai->list);
3742 mutex_unlock(&client_mutex);
3743
3744 pr_debug("Unregistered DAI '%s'\n", dai->name);
f0fba2ad
LG		 3745 kfree(dai->name);
3746 kfree(dai);
9115171a
MB		 3747}
3748EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
3749
3750/**
3751 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3752 *
ac11a2b3
MB		 3753 * @dai: Array of DAIs to register
3754 * @count: Number of DAIs
9115171a 3755 */
f0fba2ad
LG		 3756int snd_soc_register_dais(struct device *dev,
3757 struct snd_soc_dai_driver *dai_drv, size_t count)
9115171a 3758{
054880fe 3759 struct snd_soc_codec *codec;
f0fba2ad
LG		 3760 struct snd_soc_dai *dai;
3761 int i, ret = 0;
3762
720ffa4c 3763 dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count);
9115171a
MB		 3764
3765 for (i = 0; i < count; i++) {
f0fba2ad
LG		 3766
3767 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
c46e0079
AL		 3768 if (dai == NULL) {
3769 ret = -ENOMEM;
3770 goto err;
3771 }
f0fba2ad
LG		 3772
3773 /* create DAI component name */
3774 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3775 if (dai->name == NULL) {
3776 kfree(dai);
3777 ret = -EINVAL;
9115171a 3778 goto err;
f0fba2ad
LG		 3779 }
3780
3781 dai->dev = dev;
f0fba2ad 3782 dai->driver = &dai_drv[i];
0f9141c9
MB		 3783 if (dai->driver->id)
3784 dai->id = dai->driver->id;
3785 else
3786 dai->id = i;
be09ad90 3787 dai->dapm.dev = dev;
f0fba2ad
LG		 3788 if (!dai->driver->ops)
3789 dai->driver->ops = &null_dai_ops;
3790
3791 mutex_lock(&client_mutex);
054880fe
MB		 3792
3793 list_for_each_entry(codec, &codec_list, list) {
3794 if (codec->dev == dev) {
3795 dev_dbg(dev, "Mapped DAI %s to CODEC %s\n",
3796 dai->name, codec->name);
3797 dai->codec = codec;
3798 break;
3799 }
3800 }
3801
f0fba2ad 3802 list_add(&dai->list, &dai_list);
054880fe 3803
f0fba2ad
LG		 3804 mutex_unlock(&client_mutex);
3805
3806 pr_debug("Registered DAI '%s'\n", dai->name);
9115171a
MB		 3807 }
3808
3809 return 0;
3810
3811err:
3812 for (i--; i >= 0; i--)
f0fba2ad 3813 snd_soc_unregister_dai(dev);
9115171a
MB		 3814
3815 return ret;
3816}
3817EXPORT_SYMBOL_GPL(snd_soc_register_dais);
3818
3819/**
3820 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
3821 *
ac11a2b3
MB		 3822 * @dai: Array of DAIs to unregister
3823 * @count: Number of DAIs
9115171a 3824 */
f0fba2ad 3825void snd_soc_unregister_dais(struct device *dev, size_t count)
9115171a
MB		 3826{
3827 int i;
3828
3829 for (i = 0; i < count; i++)
f0fba2ad 3830 snd_soc_unregister_dai(dev);
9115171a
MB		 3831}
3832EXPORT_SYMBOL_GPL(snd_soc_unregister_dais);
3833
12a48a8c
MB		 3834/**
3835 * snd_soc_register_platform - Register a platform with the ASoC core
3836 *
ac11a2b3 3837 * @platform: platform to register
12a48a8c 3838 */
f0fba2ad
LG		 3839int snd_soc_register_platform(struct device *dev,
3840 struct snd_soc_platform_driver *platform_drv)
12a48a8c 3841{
f0fba2ad
LG		 3842 struct snd_soc_platform *platform;
3843
3844 dev_dbg(dev, "platform register %s\n", dev_name(dev));
3845
3846 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
3847 if (platform == NULL)
a7393623 3848 return -ENOMEM;
f0fba2ad
LG		 3849
3850 /* create platform component name */
3851 platform->name = fmt_single_name(dev, &platform->id);
3852 if (platform->name == NULL) {
3853 kfree(platform);
3854 return -ENOMEM;
3855 }
12a48a8c 3856
f0fba2ad
LG		 3857 platform->dev = dev;
3858 platform->driver = platform_drv;
b7950641
LG		 3859 platform->dapm.dev = dev;
3860 platform->dapm.platform = platform;
64a648c2 3861 platform->dapm.stream_event = platform_drv->stream_event;
cc22d37e 3862 mutex_init(&platform->mutex);
12a48a8c
MB		 3863
3864 mutex_lock(&client_mutex);
3865 list_add(&platform->list, &platform_list);
3866 mutex_unlock(&client_mutex);
3867
3868 pr_debug("Registered platform '%s'\n", platform->name);
3869
3870 return 0;
3871}
3872EXPORT_SYMBOL_GPL(snd_soc_register_platform);
3873
3874/**
3875 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
3876 *
ac11a2b3 3877 * @platform: platform to unregister
12a48a8c 3878 */
f0fba2ad 3879void snd_soc_unregister_platform(struct device *dev)
12a48a8c 3880{
f0fba2ad
LG		 3881 struct snd_soc_platform *platform;
3882
3883 list_for_each_entry(platform, &platform_list, list) {
3884 if (dev == platform->dev)
3885 goto found;
3886 }
3887 return;
3888
3889found:
12a48a8c
MB		 3890 mutex_lock(&client_mutex);
3891 list_del(&platform->list);
3892 mutex_unlock(&client_mutex);
3893
3894 pr_debug("Unregistered platform '%s'\n", platform->name);
f0fba2ad
LG		 3895 kfree(platform->name);
3896 kfree(platform);
12a48a8c
MB		 3897}
3898EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
3899
151ab22c
MB		 3900static u64 codec_format_map[] = {
3901 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
3902 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
3903 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
3904 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
3905 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
3906 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
3907 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3908 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3909 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
3910 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
3911 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
3912 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
3913 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
3914 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
3915 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
3916 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
3917};
3918
3919/* Fix up the DAI formats for endianness: codecs don't actually see
3920 * the endianness of the data but we're using the CPU format
3921 * definitions which do need to include endianness so we ensure that
3922 * codec DAIs always have both big and little endian variants set.
3923 */
3924static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
3925{
3926 int i;
3927
3928 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
3929 if (stream->formats & codec_format_map[i])
3930 stream->formats |= codec_format_map[i];
3931}
3932
0d0cf00a
MB		 3933/**
3934 * snd_soc_register_codec - Register a codec with the ASoC core
3935 *
ac11a2b3 3936 * @codec: codec to register
0d0cf00a 3937 */
f0fba2ad 3938int snd_soc_register_codec(struct device *dev,
001ae4c0
MB		 3939 const struct snd_soc_codec_driver *codec_drv,
3940 struct snd_soc_dai_driver *dai_drv,
3941 int num_dai)
0d0cf00a 3942{
3335ddca 3943 size_t reg_size;
f0fba2ad
LG		 3944 struct snd_soc_codec *codec;
3945 int ret, i;
151ab22c 3946
f0fba2ad
LG		 3947 dev_dbg(dev, "codec register %s\n", dev_name(dev));
3948
3949 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
3950 if (codec == NULL)
3951 return -ENOMEM;
0d0cf00a 3952
f0fba2ad
LG		 3953 /* create CODEC component name */
3954 codec->name = fmt_single_name(dev, &codec->id);
3955 if (codec->name == NULL) {
3956 kfree(codec);
3957 return -ENOMEM;
3958 }
3959
23bbce34
DP		 3960 if (codec_drv->compress_type)
3961 codec->compress_type = codec_drv->compress_type;
3962 else
3963 codec->compress_type = SND_SOC_FLAT_COMPRESSION;
3964
c3acec26
MB		 3965 codec->write = codec_drv->write;
3966 codec->read = codec_drv->read;
1500b7b5
DP		 3967 codec->volatile_register = codec_drv->volatile_register;
3968 codec->readable_register = codec_drv->readable_register;
8020454c 3969 codec->writable_register = codec_drv->writable_register;
5124e69e 3970 codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time;
ce6120cc
LG		 3971 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
3972 codec->dapm.dev = dev;
3973 codec->dapm.codec = codec;
474b62d6 3974 codec->dapm.seq_notifier = codec_drv->seq_notifier;
64a648c2 3975 codec->dapm.stream_event = codec_drv->stream_event;
7a30a3db
DP		 3976 codec->dev = dev;
3977 codec->driver = codec_drv;
3978 codec->num_dai = num_dai;
3979 mutex_init(&codec->mutex);
ce6120cc 3980
f0fba2ad
LG		 3981 /* allocate CODEC register cache */
3982 if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
3335ddca 3983 reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
aea170a0 3984 codec->reg_size = reg_size;
3335ddca
DP		 3985 /* it is necessary to make a copy of the default register cache
3986 * because in the case of using a compression type that requires
3987 * the default register cache to be marked as __devinitconst the
3988 * kernel might have freed the array by the time we initialize
3989 * the cache.
3990 */
2aa86323
DP		 3991 if (codec_drv->reg_cache_default) {
3992 codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
3993 reg_size, GFP_KERNEL);
3994 if (!codec->reg_def_copy) {
3995 ret = -ENOMEM;
3996 goto fail;
3997 }
f0fba2ad 3998 }
151ab22c
MB		 3999 }
4000
1500b7b5
DP		 4001 if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
4002 if (!codec->volatile_register)
4003 codec->volatile_register = snd_soc_default_volatile_register;
4004 if (!codec->readable_register)
4005 codec->readable_register = snd_soc_default_readable_register;
8020454c
DP		 4006 if (!codec->writable_register)
4007 codec->writable_register = snd_soc_default_writable_register;
1500b7b5
DP		 4008 }
4009
f0fba2ad
LG		 4010 for (i = 0; i < num_dai; i++) {
4011 fixup_codec_formats(&dai_drv[i].playback);
4012 fixup_codec_formats(&dai_drv[i].capture);
4013 }
4014
054880fe
MB		 4015 mutex_lock(&client_mutex);
4016 list_add(&codec->list, &codec_list);
4017 mutex_unlock(&client_mutex);
4018
26b01ccd
MB		 4019 /* register any DAIs */
4020 if (num_dai) {
4021 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
4022 if (ret < 0)
054880fe
MB		 4023 dev_err(codec->dev, "Failed to regster DAIs: %d\n",
4024 ret);
26b01ccd 4025 }
f0fba2ad 4026
0d0cf00a 4027 pr_debug("Registered codec '%s'\n", codec->name);
0d0cf00a 4028 return 0;
f0fba2ad 4029
fdf0f54d 4030fail:
3335ddca
DP		 4031 kfree(codec->reg_def_copy);
4032 codec->reg_def_copy = NULL;
f0fba2ad
LG		 4033 kfree(codec->name);
4034 kfree(codec);
4035 return ret;
0d0cf00a
MB		 4036}
4037EXPORT_SYMBOL_GPL(snd_soc_register_codec);
4038
4039/**
4040 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4041 *
ac11a2b3 4042 * @codec: codec to unregister
0d0cf00a 4043 */
f0fba2ad 4044void snd_soc_unregister_codec(struct device *dev)
0d0cf00a 4045{
f0fba2ad
LG		 4046 struct snd_soc_codec *codec;
4047 int i;
4048
4049 list_for_each_entry(codec, &codec_list, list) {
4050 if (dev == codec->dev)
4051 goto found;
4052 }
4053 return;
4054
4055found:
26b01ccd
MB		 4056 if (codec->num_dai)
4057 for (i = 0; i < codec->num_dai; i++)
4058 snd_soc_unregister_dai(dev);
f0fba2ad 4059
0d0cf00a
MB		 4060 mutex_lock(&client_mutex);
4061 list_del(&codec->list);
4062 mutex_unlock(&client_mutex);
4063
4064 pr_debug("Unregistered codec '%s'\n", codec->name);
f0fba2ad 4065
7a30a3db 4066 snd_soc_cache_exit(codec);
3335ddca 4067 kfree(codec->reg_def_copy);
1aafcd4d 4068 kfree(codec->name);
f0fba2ad 4069 kfree(codec);
0d0cf00a
MB		 4070}
4071EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
4072
bec4fa05
SW		 4073/* Retrieve a card's name from device tree */
4074int snd_soc_of_parse_card_name(struct snd_soc_card *card,
4075 const char *propname)
4076{
4077 struct device_node *np = card->dev->of_node;
4078 int ret;
4079
4080 ret = of_property_read_string_index(np, propname, 0, &card->name);
4081 /*
4082 * EINVAL means the property does not exist. This is fine providing
4083 * card->name was previously set, which is checked later in
4084 * snd_soc_register_card.
4085 */
4086 if (ret < 0 && ret != -EINVAL) {
4087 dev_err(card->dev,
4088 "Property '%s' could not be read: %d\n",
4089 propname, ret);
4090 return ret;
4091 }
4092
4093 return 0;
4094}
4095EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
4096
a4a54dd5
SW		 4097int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
4098 const char *propname)
4099{
4100 struct device_node *np = card->dev->of_node;
4101 int num_routes;
4102 struct snd_soc_dapm_route *routes;
4103 int i, ret;
4104
4105 num_routes = of_property_count_strings(np, propname);
c34ce320 4106 if (num_routes < 0 || num_routes & 1) {
a4a54dd5 4107 dev_err(card->dev,
c34ce320
RZ		 4108 "Property '%s' does not exist or its length is not even\n",
4109 propname);
a4a54dd5
SW		 4110 return -EINVAL;
4111 }
4112 num_routes /= 2;
4113 if (!num_routes) {
4114 dev_err(card->dev,
4115 "Property '%s's length is zero\n",
4116 propname);
4117 return -EINVAL;
4118 }
4119
4120 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
4121 GFP_KERNEL);
4122 if (!routes) {
4123 dev_err(card->dev,
4124 "Could not allocate DAPM route table\n");
4125 return -EINVAL;
4126 }
4127
4128 for (i = 0; i < num_routes; i++) {
4129 ret = of_property_read_string_index(np, propname,
4130 2 * i, &routes[i].sink);
4131 if (ret) {
4132 dev_err(card->dev,
4133 "Property '%s' index %d could not be read: %d\n",
4134 propname, 2 * i, ret);
4135 return -EINVAL;
4136 }
4137 ret = of_property_read_string_index(np, propname,
4138 (2 * i) + 1, &routes[i].source);
4139 if (ret) {
4140 dev_err(card->dev,
4141 "Property '%s' index %d could not be read: %d\n",
4142 propname, (2 * i) + 1, ret);
4143 return -EINVAL;
4144 }
4145 }
4146
4147 card->num_dapm_routes = num_routes;
4148 card->dapm_routes = routes;
4149
4150 return 0;
4151}
4152EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
4153
c9b3a40f 4154static int __init snd_soc_init(void)
db2a4165 4155{
384c89e2 4156#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 4157 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
4158 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
0837fc62 4159 pr_warn("ASoC: Failed to create debugfs directory\n");
8a9dab1a 4160 snd_soc_debugfs_root = NULL;
384c89e2 4161 }
c3c5a19a 4162
8a9dab1a 4163 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
c3c5a19a
MB		 4164 &codec_list_fops))
4165 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4166
8a9dab1a 4167 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
f3208780
MB		 4168 &dai_list_fops))
4169 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
19c7ac27 4170
8a9dab1a 4171 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
19c7ac27
MB		 4172 &platform_list_fops))
4173 pr_warn("ASoC: Failed to create platform list debugfs file\n");
384c89e2
MB		 4174#endif
4175
fb257897
MB		 4176 snd_soc_util_init();
4177
db2a4165
FM		 4178 return platform_driver_register(&soc_driver);
4179}
4abe8e16 4180module_init(snd_soc_init);
db2a4165 4181
7d8c16a6 4182static void __exit snd_soc_exit(void)
db2a4165 4183{
fb257897
MB		 4184 snd_soc_util_exit();
4185
384c89e2 4186#ifdef CONFIG_DEBUG_FS
8a9dab1a 4187 debugfs_remove_recursive(snd_soc_debugfs_root);
384c89e2 4188#endif
3ff3f64b 4189 platform_driver_unregister(&soc_driver);
db2a4165 4190}
db2a4165
FM		 4191module_exit(snd_soc_exit);
4192
4193/* Module information */
d331124d 4194MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
db2a4165
FM		 4195MODULE_DESCRIPTION("ALSA SoC Core");
4196MODULE_LICENSE("GPL");
8b45a209 4197MODULE_ALIAS("platform:soc-audio");
kernel source for telekom puls (alcatel/mediatek)