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ASoC: ac97: Provide stub DAPM integration
[linux-2.6-block.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);
030e79f6 61static LIST_HEAD(component_list);
c5af3a2e 62
db2a4165
FM		 63/*
64 * This is a timeout to do a DAPM powerdown after a stream is closed().
65 * It can be used to eliminate pops between different playback streams, e.g.
66 * between two audio tracks.
67 */
68static int pmdown_time = 5000;
69module_param(pmdown_time, int, 0);
70MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
71
2bc9a81e
DP		 72/* returns the minimum number of bytes needed to represent
73 * a particular given value */
74static int min_bytes_needed(unsigned long val)
75{
76 int c = 0;
77 int i;
78
79 for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c)
80 if (val & (1UL << i))
81 break;
82 c = (sizeof val * 8) - c;
83 if (!c || (c % 8))
84 c = (c + 8) / 8;
85 else
86 c /= 8;
87 return c;
88}
89
13fd179f
DP		 90/* fill buf which is 'len' bytes with a formatted
91 * string of the form 'reg: value\n' */
92static int format_register_str(struct snd_soc_codec *codec,
93 unsigned int reg, char *buf, size_t len)
94{
00b317a4
SW		 95 int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
96 int regsize = codec->driver->reg_word_size * 2;
13fd179f
DP		 97 int ret;
98 char tmpbuf[len + 1];
99 char regbuf[regsize + 1];
100
101 /* since tmpbuf is allocated on the stack, warn the callers if they
102 * try to abuse this function */
103 WARN_ON(len > 63);
104
105 /* +2 for ': ' and + 1 for '\n' */
106 if (wordsize + regsize + 2 + 1 != len)
107 return -EINVAL;
108
25032c11 109 ret = snd_soc_read(codec, reg);
13fd179f
DP		 110 if (ret < 0) {
111 memset(regbuf, 'X', regsize);
112 regbuf[regsize] = '\0';
113 } else {
114 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
115 }
116
117 /* prepare the buffer */
118 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
119 /* copy it back to the caller without the '\0' */
120 memcpy(buf, tmpbuf, len);
121
122 return 0;
123}
124
2624d5fa 125/* codec register dump */
13fd179f
DP		 126static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
127 size_t count, loff_t pos)
2624d5fa 128{
13fd179f 129 int i, step = 1;
2bc9a81e 130 int wordsize, regsize;
13fd179f
DP		 131 int len;
132 size_t total = 0;
133 loff_t p = 0;
2bc9a81e 134
00b317a4
SW		 135 wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
136 regsize = codec->driver->reg_word_size * 2;
2624d5fa 137
13fd179f
DP		 138 len = wordsize + regsize + 2 + 1;
139
f0fba2ad 140 if (!codec->driver->reg_cache_size)
2624d5fa
MB		 141 return 0;
142
f0fba2ad
LG		 143 if (codec->driver->reg_cache_step)
144 step = codec->driver->reg_cache_step;
2624d5fa 145
f0fba2ad 146 for (i = 0; i < codec->driver->reg_cache_size; i += step) {
b92d150b 147 if (!snd_soc_codec_readable_register(codec, i))
2624d5fa 148 continue;
f0fba2ad
LG		 149 if (codec->driver->display_register) {
150 count += codec->driver->display_register(codec, buf + count,
2624d5fa 151 PAGE_SIZE - count, i);
5164d74d 152 } else {
13fd179f
DP		 153 /* only support larger than PAGE_SIZE bytes debugfs
154 * entries for the default case */
155 if (p >= pos) {
156 if (total + len >= count - 1)
157 break;
158 format_register_str(codec, i, buf + total, len);
159 total += len;
160 }
161 p += len;
5164d74d 162 }
2624d5fa
MB		 163 }
164
13fd179f 165 total = min(total, count - 1);
2624d5fa 166
13fd179f 167 return total;
2624d5fa 168}
13fd179f 169
2624d5fa
MB		 170static ssize_t codec_reg_show(struct device *dev,
171 struct device_attribute *attr, char *buf)
172{
36ae1a96 173 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
f0fba2ad 174
13fd179f 175 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
2624d5fa
MB		 176}
177
178static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
179
dbe21408
MB		 180static ssize_t pmdown_time_show(struct device *dev,
181 struct device_attribute *attr, char *buf)
182{
36ae1a96 183 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
dbe21408 184
f0fba2ad 185 return sprintf(buf, "%ld\n", rtd->pmdown_time);
dbe21408
MB		 186}
187
188static ssize_t pmdown_time_set(struct device *dev,
189 struct device_attribute *attr,
190 const char *buf, size_t count)
191{
36ae1a96 192 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
c593b520 193 int ret;
dbe21408 194
c593b520
MB		 195 ret = strict_strtol(buf, 10, &rtd->pmdown_time);
196 if (ret)
197 return ret;
dbe21408
MB		 198
199 return count;
200}
201
202static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
203
2624d5fa 204#ifdef CONFIG_DEBUG_FS
2624d5fa 205static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
13fd179f 206 size_t count, loff_t *ppos)
2624d5fa
MB		 207{
208 ssize_t ret;
209 struct snd_soc_codec *codec = file->private_data;
13fd179f
DP		 210 char *buf;
211
212 if (*ppos < 0 || !count)
213 return -EINVAL;
214
215 buf = kmalloc(count, GFP_KERNEL);
2624d5fa
MB		 216 if (!buf)
217 return -ENOMEM;
13fd179f
DP		 218
219 ret = soc_codec_reg_show(codec, buf, count, *ppos);
220 if (ret >= 0) {
221 if (copy_to_user(user_buf, buf, ret)) {
222 kfree(buf);
223 return -EFAULT;
224 }
225 *ppos += ret;
226 }
227
2624d5fa
MB		 228 kfree(buf);
229 return ret;
230}
231
232static ssize_t codec_reg_write_file(struct file *file,
233 const char __user *user_buf, size_t count, loff_t *ppos)
234{
235 char buf[32];
34e268d8 236 size_t buf_size;
2624d5fa
MB		 237 char *start = buf;
238 unsigned long reg, value;
2624d5fa
MB		 239 struct snd_soc_codec *codec = file->private_data;
240
241 buf_size = min(count, (sizeof(buf)-1));
242 if (copy_from_user(buf, user_buf, buf_size))
243 return -EFAULT;
244 buf[buf_size] = 0;
2624d5fa
MB		 245
246 while (*start == ' ')
247 start++;
248 reg = simple_strtoul(start, &start, 16);
2624d5fa
MB		 249 while (*start == ' ')
250 start++;
251 if (strict_strtoul(start, 16, &value))
252 return -EINVAL;
0d51a9cb
MB		 253
254 /* Userspace has been fiddling around behind the kernel's back */
373d4d09 255 add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE);
0d51a9cb 256
e4f078d8 257 snd_soc_write(codec, reg, value);
2624d5fa
MB		 258 return buf_size;
259}
260
261static const struct file_operations codec_reg_fops = {
234e3405 262 .open = simple_open,
2624d5fa
MB		 263 .read = codec_reg_read_file,
264 .write = codec_reg_write_file,
6038f373 265 .llseek = default_llseek,
2624d5fa
MB		 266};
267
268static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
269{
d6ce4cf3
JN		 270 struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
271
272 codec->debugfs_codec_root = debugfs_create_dir(codec->name,
273 debugfs_card_root);
2624d5fa 274 if (!codec->debugfs_codec_root) {
10e8aa9a
MM		 275 dev_warn(codec->dev,
276 "ASoC: Failed to create codec debugfs directory\n");
2624d5fa
MB		 277 return;
278 }
279
aaee8ef1
MB		 280 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
281 &codec->cache_sync);
282 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
283 &codec->cache_only);
284
2624d5fa
MB		 285 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
286 codec->debugfs_codec_root,
287 codec, &codec_reg_fops);
288 if (!codec->debugfs_reg)
10e8aa9a
MM		 289 dev_warn(codec->dev,
290 "ASoC: Failed to create codec register debugfs file\n");
2624d5fa 291
8eecaf62 292 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
2624d5fa
MB		 293}
294
295static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
296{
297 debugfs_remove_recursive(codec->debugfs_codec_root);
298}
299
731f1ab2
SG		 300static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
301{
302 struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
303
304 platform->debugfs_platform_root = debugfs_create_dir(platform->name,
305 debugfs_card_root);
306 if (!platform->debugfs_platform_root) {
307 dev_warn(platform->dev,
f110bfc7 308 "ASoC: Failed to create platform debugfs directory\n");
731f1ab2
SG		 309 return;
310 }
311
312 snd_soc_dapm_debugfs_init(&platform->dapm,
313 platform->debugfs_platform_root);
314}
315
316static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
317{
318 debugfs_remove_recursive(platform->debugfs_platform_root);
319}
320
c3c5a19a
MB		 321static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
322 size_t count, loff_t *ppos)
323{
324 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 325 ssize_t len, ret = 0;
c3c5a19a
MB		 326 struct snd_soc_codec *codec;
327
328 if (!buf)
329 return -ENOMEM;
330
2b194f9d
MB		 331 list_for_each_entry(codec, &codec_list, list) {
332 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
333 codec->name);
334 if (len >= 0)
335 ret += len;
336 if (ret > PAGE_SIZE) {
337 ret = PAGE_SIZE;
338 break;
339 }
340 }
c3c5a19a
MB		 341
342 if (ret >= 0)
343 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
344
345 kfree(buf);
346
347 return ret;
348}
349
350static const struct file_operations codec_list_fops = {
351 .read = codec_list_read_file,
352 .llseek = default_llseek,/* read accesses f_pos */
353};
354
f3208780
MB		 355static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
356 size_t count, loff_t *ppos)
357{
358 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 359 ssize_t len, ret = 0;
f3208780
MB		 360 struct snd_soc_dai *dai;
361
362 if (!buf)
363 return -ENOMEM;
364
2b194f9d
MB		 365 list_for_each_entry(dai, &dai_list, list) {
366 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name);
367 if (len >= 0)
368 ret += len;
369 if (ret > PAGE_SIZE) {
370 ret = PAGE_SIZE;
371 break;
372 }
373 }
f3208780 374
2b194f9d 375 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
f3208780
MB		 376
377 kfree(buf);
378
379 return ret;
380}
381
382static const struct file_operations dai_list_fops = {
383 .read = dai_list_read_file,
384 .llseek = default_llseek,/* read accesses f_pos */
385};
386
19c7ac27
MB		 387static ssize_t platform_list_read_file(struct file *file,
388 char __user *user_buf,
389 size_t count, loff_t *ppos)
390{
391 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 392 ssize_t len, ret = 0;
19c7ac27
MB		 393 struct snd_soc_platform *platform;
394
395 if (!buf)
396 return -ENOMEM;
397
2b194f9d
MB		 398 list_for_each_entry(platform, &platform_list, list) {
399 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
400 platform->name);
401 if (len >= 0)
402 ret += len;
403 if (ret > PAGE_SIZE) {
404 ret = PAGE_SIZE;
405 break;
406 }
407 }
19c7ac27 408
2b194f9d 409 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
19c7ac27
MB		 410
411 kfree(buf);
412
413 return ret;
414}
415
416static const struct file_operations platform_list_fops = {
417 .read = platform_list_read_file,
418 .llseek = default_llseek,/* read accesses f_pos */
419};
420
a6052154
JN		 421static void soc_init_card_debugfs(struct snd_soc_card *card)
422{
423 card->debugfs_card_root = debugfs_create_dir(card->name,
8a9dab1a 424 snd_soc_debugfs_root);
3a45b867 425 if (!card->debugfs_card_root) {
a6052154 426 dev_warn(card->dev,
7c08be84 427 "ASoC: Failed to create card debugfs directory\n");
3a45b867
JN		 428 return;
429 }
430
431 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
432 card->debugfs_card_root,
433 &card->pop_time);
434 if (!card->debugfs_pop_time)
435 dev_warn(card->dev,
f110bfc7 436 "ASoC: Failed to create pop time debugfs file\n");
a6052154
JN		 437}
438
439static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
440{
441 debugfs_remove_recursive(card->debugfs_card_root);
442}
443
2624d5fa
MB		 444#else
445
446static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
447{
448}
449
450static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
451{
452}
b95fccbc 453
731f1ab2
SG		 454static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
455{
456}
457
458static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
459{
460}
461
b95fccbc
AL		 462static inline void soc_init_card_debugfs(struct snd_soc_card *card)
463{
464}
465
466static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
467{
468}
2624d5fa
MB		 469#endif
470
47c88fff
LG		 471struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
472 const char *dai_link, int stream)
473{
474 int i;
475
476 for (i = 0; i < card->num_links; i++) {
477 if (card->rtd[i].dai_link->no_pcm &&
478 !strcmp(card->rtd[i].dai_link->name, dai_link))
479 return card->rtd[i].pcm->streams[stream].substream;
480 }
f110bfc7 481 dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link);
47c88fff
LG		 482 return NULL;
483}
484EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
485
486struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
487 const char *dai_link)
488{
489 int i;
490
491 for (i = 0; i < card->num_links; i++) {
492 if (!strcmp(card->rtd[i].dai_link->name, dai_link))
493 return &card->rtd[i];
494 }
f110bfc7 495 dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link);
47c88fff
LG		 496 return NULL;
497}
498EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime);
499
db2a4165
FM		 500#ifdef CONFIG_SND_SOC_AC97_BUS
501/* unregister ac97 codec */
502static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
503{
504 if (codec->ac97->dev.bus)
505 device_unregister(&codec->ac97->dev);
506 return 0;
507}
508
509/* stop no dev release warning */
510static void soc_ac97_device_release(struct device *dev){}
511
512/* register ac97 codec to bus */
513static int soc_ac97_dev_register(struct snd_soc_codec *codec)
514{
515 int err;
516
517 codec->ac97->dev.bus = &ac97_bus_type;
4ac5c61f 518 codec->ac97->dev.parent = codec->card->dev;
db2a4165
FM		 519 codec->ac97->dev.release = soc_ac97_device_release;
520
bb072bf0 521 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
f0fba2ad 522 codec->card->snd_card->number, 0, codec->name);
db2a4165
FM		 523 err = device_register(&codec->ac97->dev);
524 if (err < 0) {
f110bfc7 525 dev_err(codec->dev, "ASoC: Can't register ac97 bus\n");
db2a4165
FM		 526 codec->ac97->dev.bus = NULL;
527 return err;
528 }
529 return 0;
530}
531#endif
532
6f8ab4ac 533#ifdef CONFIG_PM_SLEEP
db2a4165 534/* powers down audio subsystem for suspend */
6f8ab4ac 535int snd_soc_suspend(struct device *dev)
db2a4165 536{
6f8ab4ac 537 struct snd_soc_card *card = dev_get_drvdata(dev);
2eea392d 538 struct snd_soc_codec *codec;
db2a4165
FM		 539 int i;
540
e3509ff0
DM		 541 /* If the initialization of this soc device failed, there is no codec
542 * associated with it. Just bail out in this case.
543 */
f0fba2ad 544 if (list_empty(&card->codec_dev_list))
e3509ff0
DM		 545 return 0;
546
6ed25978
AG		 547 /* Due to the resume being scheduled into a workqueue we could
548 * suspend before that's finished - wait for it to complete.
549 */
f0fba2ad
LG		 550 snd_power_lock(card->snd_card);
551 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
552 snd_power_unlock(card->snd_card);
6ed25978
AG		 553
554 /* we're going to block userspace touching us until resume completes */
f0fba2ad 555 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
6ed25978 556
a00f90f9 557 /* mute any active DACs */
f0fba2ad
LG		 558 for (i = 0; i < card->num_rtd; i++) {
559 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
560 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 561
f0fba2ad 562 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 563 continue;
564
f0fba2ad
LG		 565 if (drv->ops->digital_mute && dai->playback_active)
566 drv->ops->digital_mute(dai, 1);
db2a4165
FM		 567 }
568
4ccab3e7 569 /* suspend all pcms */
f0fba2ad
LG		 570 for (i = 0; i < card->num_rtd; i++) {
571 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 572 continue;
573
f0fba2ad 574 snd_pcm_suspend_all(card->rtd[i].pcm);
3efab7dc 575 }
4ccab3e7 576
87506549 577 if (card->suspend_pre)
70b2ac12 578 card->suspend_pre(card);
db2a4165 579
f0fba2ad
LG		 580 for (i = 0; i < card->num_rtd; i++) {
581 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
582 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 583
f0fba2ad 584 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 585 continue;
586
f0fba2ad
LG		 587 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
588 cpu_dai->driver->suspend(cpu_dai);
589 if (platform->driver->suspend && !platform->suspended) {
590 platform->driver->suspend(cpu_dai);
591 platform->suspended = 1;
592 }
db2a4165
FM		 593 }
594
595 /* close any waiting streams and save state */
f0fba2ad 596 for (i = 0; i < card->num_rtd; i++) {
43829731 597 flush_delayed_work(&card->rtd[i].delayed_work);
ce6120cc 598 card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
f0fba2ad 599 }
db2a4165 600
f0fba2ad 601 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 602
f0fba2ad 603 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 604 continue;
605
7bd3a6f3
MB		 606 snd_soc_dapm_stream_event(&card->rtd[i],
607 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 608 SND_SOC_DAPM_STREAM_SUSPEND);
f0fba2ad 609
7bd3a6f3
MB		 610 snd_soc_dapm_stream_event(&card->rtd[i],
611 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 612 SND_SOC_DAPM_STREAM_SUSPEND);
db2a4165
FM		 613 }
614
e2d32ff6
MB		 615 /* Recheck all analogue paths too */
616 dapm_mark_io_dirty(&card->dapm);
617 snd_soc_dapm_sync(&card->dapm);
618
f0fba2ad 619 /* suspend all CODECs */
2eea392d 620 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 621 /* If there are paths active then the CODEC will be held with
622 * bias _ON and should not be suspended. */
623 if (!codec->suspended && codec->driver->suspend) {
ce6120cc 624 switch (codec->dapm.bias_level) {
f0fba2ad 625 case SND_SOC_BIAS_STANDBY:
125a25da
MB		 626 /*
627 * If the CODEC is capable of idle
628 * bias off then being in STANDBY
629 * means it's doing something,
630 * otherwise fall through.
631 */
632 if (codec->dapm.idle_bias_off) {
633 dev_dbg(codec->dev,
10e8aa9a 634 "ASoC: idle_bias_off CODEC on over suspend\n");
125a25da
MB		 635 break;
636 }
f0fba2ad 637 case SND_SOC_BIAS_OFF:
84b315ee 638 codec->driver->suspend(codec);
f0fba2ad 639 codec->suspended = 1;
7be4ba24 640 codec->cache_sync = 1;
da8b8e0f
MB		 641 if (codec->using_regmap)
642 regcache_mark_dirty(codec->control_data);
f0fba2ad
LG		 643 break;
644 default:
10e8aa9a
MM		 645 dev_dbg(codec->dev,
646 "ASoC: CODEC is on over suspend\n");
f0fba2ad
LG		 647 break;
648 }
1547aba9
MB		 649 }
650 }
db2a4165 651
f0fba2ad
LG		 652 for (i = 0; i < card->num_rtd; i++) {
653 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 654
f0fba2ad 655 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 656 continue;
657
f0fba2ad
LG		 658 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
659 cpu_dai->driver->suspend(cpu_dai);
db2a4165
FM		 660 }
661
87506549 662 if (card->suspend_post)
70b2ac12 663 card->suspend_post(card);
db2a4165
FM		 664
665 return 0;
666}
6f8ab4ac 667EXPORT_SYMBOL_GPL(snd_soc_suspend);
db2a4165 668
6ed25978
AG		 669/* deferred resume work, so resume can complete before we finished
670 * setting our codec back up, which can be very slow on I2C
671 */
672static void soc_resume_deferred(struct work_struct *work)
db2a4165 673{
f0fba2ad
LG		 674 struct snd_soc_card *card =
675 container_of(work, struct snd_soc_card, deferred_resume_work);
2eea392d 676 struct snd_soc_codec *codec;
db2a4165
FM		 677 int i;
678
6ed25978
AG		 679 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
680 * so userspace apps are blocked from touching us
681 */
682
f110bfc7 683 dev_dbg(card->dev, "ASoC: starting resume work\n");
6ed25978 684
9949788b 685 /* Bring us up into D2 so that DAPM starts enabling things */
f0fba2ad 686 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
9949788b 687
87506549 688 if (card->resume_pre)
70b2ac12 689 card->resume_pre(card);
db2a4165 690
f0fba2ad
LG		 691 /* resume AC97 DAIs */
692 for (i = 0; i < card->num_rtd; i++) {
693 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 694
f0fba2ad 695 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 696 continue;
697
f0fba2ad
LG		 698 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
699 cpu_dai->driver->resume(cpu_dai);
700 }
701
2eea392d 702 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 703 /* If the CODEC was idle over suspend then it will have been
704 * left with bias OFF or STANDBY and suspended so we must now
705 * resume. Otherwise the suspend was suppressed.
706 */
707 if (codec->driver->resume && codec->suspended) {
ce6120cc 708 switch (codec->dapm.bias_level) {
f0fba2ad
LG		 709 case SND_SOC_BIAS_STANDBY:
710 case SND_SOC_BIAS_OFF:
711 codec->driver->resume(codec);
712 codec->suspended = 0;
713 break;
714 default:
10e8aa9a
MM		 715 dev_dbg(codec->dev,
716 "ASoC: CODEC was on over suspend\n");
f0fba2ad
LG		 717 break;
718 }
1547aba9
MB		 719 }
720 }
db2a4165 721
f0fba2ad 722 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 723
f0fba2ad 724 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 725 continue;
726
7bd3a6f3 727 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 728 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 729 SND_SOC_DAPM_STREAM_RESUME);
f0fba2ad 730
7bd3a6f3 731 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 732 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 733 SND_SOC_DAPM_STREAM_RESUME);
db2a4165
FM		 734 }
735
3ff3f64b 736 /* unmute any active DACs */
f0fba2ad
LG		 737 for (i = 0; i < card->num_rtd; i++) {
738 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
739 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 740
f0fba2ad 741 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 742 continue;
743
f0fba2ad
LG		 744 if (drv->ops->digital_mute && dai->playback_active)
745 drv->ops->digital_mute(dai, 0);
db2a4165
FM		 746 }
747
f0fba2ad
LG		 748 for (i = 0; i < card->num_rtd; i++) {
749 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
750 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 751
f0fba2ad 752 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 753 continue;
754
f0fba2ad
LG		 755 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
756 cpu_dai->driver->resume(cpu_dai);
757 if (platform->driver->resume && platform->suspended) {
758 platform->driver->resume(cpu_dai);
759 platform->suspended = 0;
760 }
db2a4165
FM		 761 }
762
87506549 763 if (card->resume_post)
70b2ac12 764 card->resume_post(card);
db2a4165 765
f110bfc7 766 dev_dbg(card->dev, "ASoC: resume work completed\n");
6ed25978
AG		 767
768 /* userspace can access us now we are back as we were before */
f0fba2ad 769 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
e2d32ff6
MB		 770
771 /* Recheck all analogue paths too */
772 dapm_mark_io_dirty(&card->dapm);
773 snd_soc_dapm_sync(&card->dapm);
6ed25978
AG		 774}
775
776/* powers up audio subsystem after a suspend */
6f8ab4ac 777int snd_soc_resume(struct device *dev)
6ed25978 778{
6f8ab4ac 779 struct snd_soc_card *card = dev_get_drvdata(dev);
82e14e8b 780 int i, ac97_control = 0;
b9dd94a8 781
5ff1ddf2
EM		 782 /* If the initialization of this soc device failed, there is no codec
783 * associated with it. Just bail out in this case.
784 */
785 if (list_empty(&card->codec_dev_list))
786 return 0;
787
64ab9baa
MB		 788 /* AC97 devices might have other drivers hanging off them so
789 * need to resume immediately. Other drivers don't have that
790 * problem and may take a substantial amount of time to resume
791 * due to I/O costs and anti-pop so handle them out of line.
792 */
f0fba2ad
LG		 793 for (i = 0; i < card->num_rtd; i++) {
794 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
82e14e8b
SW		 795 ac97_control |= cpu_dai->driver->ac97_control;
796 }
797 if (ac97_control) {
f110bfc7 798 dev_dbg(dev, "ASoC: Resuming AC97 immediately\n");
82e14e8b
SW		 799 soc_resume_deferred(&card->deferred_resume_work);
800 } else {
f110bfc7 801 dev_dbg(dev, "ASoC: Scheduling resume work\n");
82e14e8b 802 if (!schedule_work(&card->deferred_resume_work))
f110bfc7 803 dev_err(dev, "ASoC: resume work item may be lost\n");
64ab9baa 804 }
6ed25978 805
db2a4165
FM		 806 return 0;
807}
6f8ab4ac 808EXPORT_SYMBOL_GPL(snd_soc_resume);
db2a4165 809#else
6f8ab4ac
MB		 810#define snd_soc_suspend NULL
811#define snd_soc_resume NULL
db2a4165
FM		 812#endif
813
85e7652d 814static const struct snd_soc_dai_ops null_dai_ops = {
02a06d30
BS		 815};
816
f0fba2ad 817static int soc_bind_dai_link(struct snd_soc_card *card, int num)
db2a4165 818{
f0fba2ad
LG		 819 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
820 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
fe3e78e0 821 struct snd_soc_codec *codec;
435c5e25 822 struct snd_soc_platform *platform;
f0fba2ad 823 struct snd_soc_dai *codec_dai, *cpu_dai;
848dd8be 824 const char *platform_name;
435c5e25 825
f110bfc7 826 dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
435c5e25 827
b19e6e7b 828 /* Find CPU DAI from registered DAIs*/
f0fba2ad 829 list_for_each_entry(cpu_dai, &dai_list, list) {
bc92657a
SW		 830 if (dai_link->cpu_of_node &&
831 (cpu_dai->dev->of_node != dai_link->cpu_of_node))
832 continue;
833 if (dai_link->cpu_name &&
834 strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name))
835 continue;
836 if (dai_link->cpu_dai_name &&
837 strcmp(cpu_dai->name, dai_link->cpu_dai_name))
838 continue;
2610ab77
SW		 839
840 rtd->cpu_dai = cpu_dai;
435c5e25 841 }
6308419a 842
b19e6e7b 843 if (!rtd->cpu_dai) {
f110bfc7 844 dev_err(card->dev, "ASoC: CPU DAI %s not registered\n",
b19e6e7b
MB		 845 dai_link->cpu_dai_name);
846 return -EPROBE_DEFER;
f0fba2ad
LG		 847 }
848
b19e6e7b 849 /* Find CODEC from registered CODECs */
f0fba2ad 850 list_for_each_entry(codec, &codec_list, list) {
5a504963
SW		 851 if (dai_link->codec_of_node) {
852 if (codec->dev->of_node != dai_link->codec_of_node)
853 continue;
854 } else {
855 if (strcmp(codec->name, dai_link->codec_name))
856 continue;
857 }
2610ab77
SW		 858
859 rtd->codec = codec;
860
861 /*
862 * CODEC found, so find CODEC DAI from registered DAIs from
863 * this CODEC
864 */
865 list_for_each_entry(codec_dai, &dai_list, list) {
866 if (codec->dev == codec_dai->dev &&
867 !strcmp(codec_dai->name,
868 dai_link->codec_dai_name)) {
f0fba2ad 869
2610ab77 870 rtd->codec_dai = codec_dai;
2610ab77 871 }
435c5e25 872 }
2610ab77 873
b19e6e7b 874 if (!rtd->codec_dai) {
f110bfc7 875 dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
b19e6e7b
MB		 876 dai_link->codec_dai_name);
877 return -EPROBE_DEFER;
878 }
f0fba2ad 879 }
6b05eda6 880
b19e6e7b 881 if (!rtd->codec) {
f110bfc7 882 dev_err(card->dev, "ASoC: CODEC %s not registered\n",
b19e6e7b
MB		 883 dai_link->codec_name);
884 return -EPROBE_DEFER;
885 }
848dd8be
MB		 886
887 /* if there's no platform we match on the empty platform */
888 platform_name = dai_link->platform_name;
5a504963 889 if (!platform_name && !dai_link->platform_of_node)
848dd8be
MB		 890 platform_name = "snd-soc-dummy";
891
b19e6e7b 892 /* find one from the set of registered platforms */
f0fba2ad 893 list_for_each_entry(platform, &platform_list, list) {
5a504963
SW		 894 if (dai_link->platform_of_node) {
895 if (platform->dev->of_node !=
896 dai_link->platform_of_node)
897 continue;
898 } else {
899 if (strcmp(platform->name, platform_name))
900 continue;
901 }
2610ab77
SW		 902
903 rtd->platform = platform;
02a06d30 904 }
b19e6e7b 905 if (!rtd->platform) {
f110bfc7 906 dev_err(card->dev, "ASoC: platform %s not registered\n",
f0fba2ad 907 dai_link->platform_name);
b19e6e7b 908 return -EPROBE_DEFER;
f0fba2ad 909 }
b19e6e7b
MB		 910
911 card->num_rtd++;
912
913 return 0;
f0fba2ad
LG		 914}
915
d12cd198
SW		 916static int soc_remove_platform(struct snd_soc_platform *platform)
917{
918 int ret;
919
920 if (platform->driver->remove) {
921 ret = platform->driver->remove(platform);
922 if (ret < 0)
f110bfc7
LG		 923 dev_err(platform->dev, "ASoC: failed to remove %d\n",
924 ret);
d12cd198
SW		 925 }
926
927 /* Make sure all DAPM widgets are freed */
928 snd_soc_dapm_free(&platform->dapm);
929
930 soc_cleanup_platform_debugfs(platform);
931 platform->probed = 0;
932 list_del(&platform->card_list);
933 module_put(platform->dev->driver->owner);
934
935 return 0;
936}
937
589c3563
JN		 938static void soc_remove_codec(struct snd_soc_codec *codec)
939{
940 int err;
941
942 if (codec->driver->remove) {
943 err = codec->driver->remove(codec);
944 if (err < 0)
f110bfc7 945 dev_err(codec->dev, "ASoC: failed to remove %d\n", err);
589c3563
JN		 946 }
947
948 /* Make sure all DAPM widgets are freed */
949 snd_soc_dapm_free(&codec->dapm);
950
951 soc_cleanup_codec_debugfs(codec);
952 codec->probed = 0;
953 list_del(&codec->card_list);
954 module_put(codec->dev->driver->owner);
955}
956
62ae68fa 957static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 958{
959 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
f0fba2ad
LG		 960 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
961 int err;
962
963 /* unregister the rtd device */
964 if (rtd->dev_registered) {
36ae1a96
MB		 965 device_remove_file(rtd->dev, &dev_attr_pmdown_time);
966 device_remove_file(rtd->dev, &dev_attr_codec_reg);
967 device_unregister(rtd->dev);
f0fba2ad
LG		 968 rtd->dev_registered = 0;
969 }
970
971 /* remove the CODEC DAI */
0168bf0d
LG		 972 if (codec_dai && codec_dai->probed &&
973 codec_dai->driver->remove_order == order) {
f0fba2ad
LG		 974 if (codec_dai->driver->remove) {
975 err = codec_dai->driver->remove(codec_dai);
976 if (err < 0)
f110bfc7
LG		 977 dev_err(codec_dai->dev,
978 "ASoC: failed to remove %s: %d\n",
979 codec_dai->name, err);
6b05eda6 980 }
f0fba2ad
LG		 981 codec_dai->probed = 0;
982 list_del(&codec_dai->card_list);
983 }
6b05eda6 984
f0fba2ad 985 /* remove the cpu_dai */
0168bf0d
LG		 986 if (cpu_dai && cpu_dai->probed &&
987 cpu_dai->driver->remove_order == order) {
f0fba2ad
LG		 988 if (cpu_dai->driver->remove) {
989 err = cpu_dai->driver->remove(cpu_dai);
990 if (err < 0)
f110bfc7
LG		 991 dev_err(cpu_dai->dev,
992 "ASoC: failed to remove %s: %d\n",
993 cpu_dai->name, err);
db2a4165 994 }
f0fba2ad
LG		 995 cpu_dai->probed = 0;
996 list_del(&cpu_dai->card_list);
a9db7dbe 997
18d75644
SW		 998 if (!cpu_dai->codec) {
999 snd_soc_dapm_free(&cpu_dai->dapm);
a9db7dbe 1000 module_put(cpu_dai->dev->driver->owner);
18d75644 1001 }
db2a4165 1002 }
f0fba2ad 1003}
db2a4165 1004
62ae68fa
SW		 1005static void soc_remove_link_components(struct snd_soc_card *card, int num,
1006 int order)
1007{
1008 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1009 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1010 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1011 struct snd_soc_platform *platform = rtd->platform;
1012 struct snd_soc_codec *codec;
1013
1014 /* remove the platform */
1015 if (platform && platform->probed &&
1016 platform->driver->remove_order == order) {
1017 soc_remove_platform(platform);
1018 }
1019
1020 /* remove the CODEC-side CODEC */
1021 if (codec_dai) {
1022 codec = codec_dai->codec;
1023 if (codec && codec->probed &&
1024 codec->driver->remove_order == order)
1025 soc_remove_codec(codec);
1026 }
1027
1028 /* remove any CPU-side CODEC */
1029 if (cpu_dai) {
1030 codec = cpu_dai->codec;
1031 if (codec && codec->probed &&
1032 codec->driver->remove_order == order)
1033 soc_remove_codec(codec);
1034 }
1035}
1036
0671fd8e
KM		 1037static void soc_remove_dai_links(struct snd_soc_card *card)
1038{
0168bf0d 1039 int dai, order;
0671fd8e 1040
0168bf0d
LG		 1041 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1042 order++) {
1043 for (dai = 0; dai < card->num_rtd; dai++)
62ae68fa
SW		 1044 soc_remove_link_dais(card, dai, order);
1045 }
1046
1047 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1048 order++) {
1049 for (dai = 0; dai < card->num_rtd; dai++)
1050 soc_remove_link_components(card, dai, order);
0168bf0d 1051 }
62ae68fa 1052
0671fd8e
KM		 1053 card->num_rtd = 0;
1054}
1055
ead9b919
JN		 1056static void soc_set_name_prefix(struct snd_soc_card *card,
1057 struct snd_soc_codec *codec)
1058{
1059 int i;
1060
ff819b83 1061 if (card->codec_conf == NULL)
ead9b919
JN		 1062 return;
1063
ff819b83
DP		 1064 for (i = 0; i < card->num_configs; i++) {
1065 struct snd_soc_codec_conf *map = &card->codec_conf[i];
ead9b919
JN		 1066 if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
1067 codec->name_prefix = map->name_prefix;
1068 break;
1069 }
1070 }
1071}
1072
589c3563
JN		 1073static int soc_probe_codec(struct snd_soc_card *card,
1074 struct snd_soc_codec *codec)
1075{
1076 int ret = 0;
89b95ac0 1077 const struct snd_soc_codec_driver *driver = codec->driver;
888df395 1078 struct snd_soc_dai *dai;
589c3563
JN		 1079
1080 codec->card = card;
1081 codec->dapm.card = card;
1082 soc_set_name_prefix(card, codec);
1083
70d29331
JN		 1084 if (!try_module_get(codec->dev->driver->owner))
1085 return -ENODEV;
1086
d5d1e0be
LPC		 1087 soc_init_codec_debugfs(codec);
1088
77530150
LPC		 1089 if (driver->dapm_widgets)
1090 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
1091 driver->num_dapm_widgets);
1092
888df395
MB		 1093 /* Create DAPM widgets for each DAI stream */
1094 list_for_each_entry(dai, &dai_list, list) {
1095 if (dai->dev != codec->dev)
1096 continue;
1097
1098 snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
1099 }
1100
33c5f969
MB		 1101 codec->dapm.idle_bias_off = driver->idle_bias_off;
1102
89b95ac0
MB		 1103 if (driver->probe) {
1104 ret = driver->probe(codec);
589c3563
JN		 1105 if (ret < 0) {
1106 dev_err(codec->dev,
f110bfc7 1107 "ASoC: failed to probe CODEC %d\n", ret);
70d29331 1108 goto err_probe;
589c3563 1109 }
ff541f4b
CL		 1110 WARN(codec->dapm.idle_bias_off &&
1111 codec->dapm.bias_level != SND_SOC_BIAS_OFF,
10e8aa9a
MM		 1112 "codec %s can not start from non-off bias with idle_bias_off==1\n",
1113 codec->name);
589c3563
JN		 1114 }
1115
38cbf959 1116 /* If the driver didn't set I/O up try regmap */
98d3088e 1117 if (!codec->write && dev_get_regmap(codec->dev, NULL))
38cbf959
MB		 1118 snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
1119
b7af1daf 1120 if (driver->controls)
022658be 1121 snd_soc_add_codec_controls(codec, driver->controls,
b7af1daf 1122 driver->num_controls);
89b95ac0
MB		 1123 if (driver->dapm_routes)
1124 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
1125 driver->num_dapm_routes);
1126
589c3563
JN		 1127 /* mark codec as probed and add to card codec list */
1128 codec->probed = 1;
1129 list_add(&codec->card_list, &card->codec_dev_list);
7be31be8 1130 list_add(&codec->dapm.list, &card->dapm_list);
589c3563 1131
70d29331
JN		 1132 return 0;
1133
1134err_probe:
d5d1e0be 1135 soc_cleanup_codec_debugfs(codec);
70d29331
JN		 1136 module_put(codec->dev->driver->owner);
1137
589c3563
JN		 1138 return ret;
1139}
1140
956245e9
LG		 1141static int soc_probe_platform(struct snd_soc_card *card,
1142 struct snd_soc_platform *platform)
1143{
1144 int ret = 0;
1145 const struct snd_soc_platform_driver *driver = platform->driver;
be09ad90 1146 struct snd_soc_dai *dai;
956245e9
LG		 1147
1148 platform->card = card;
b7950641 1149 platform->dapm.card = card;
956245e9
LG		 1150
1151 if (!try_module_get(platform->dev->driver->owner))
1152 return -ENODEV;
1153
731f1ab2
SG		 1154 soc_init_platform_debugfs(platform);
1155
cb2cf612
LG		 1156 if (driver->dapm_widgets)
1157 snd_soc_dapm_new_controls(&platform->dapm,
1158 driver->dapm_widgets, driver->num_dapm_widgets);
1159
be09ad90
LG		 1160 /* Create DAPM widgets for each DAI stream */
1161 list_for_each_entry(dai, &dai_list, list) {
1162 if (dai->dev != platform->dev)
1163 continue;
1164
1165 snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
1166 }
1167
3fec6b6d
SW		 1168 platform->dapm.idle_bias_off = 1;
1169
956245e9
LG		 1170 if (driver->probe) {
1171 ret = driver->probe(platform);
1172 if (ret < 0) {
1173 dev_err(platform->dev,
f110bfc7 1174 "ASoC: failed to probe platform %d\n", ret);
956245e9
LG		 1175 goto err_probe;
1176 }
1177 }
1178
cb2cf612
LG		 1179 if (driver->controls)
1180 snd_soc_add_platform_controls(platform, driver->controls,
1181 driver->num_controls);
1182 if (driver->dapm_routes)
1183 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1184 driver->num_dapm_routes);
1185
956245e9
LG		 1186 /* mark platform as probed and add to card platform list */
1187 platform->probed = 1;
1188 list_add(&platform->card_list, &card->platform_dev_list);
b7950641 1189 list_add(&platform->dapm.list, &card->dapm_list);
956245e9
LG		 1190
1191 return 0;
1192
1193err_probe:
02db1103 1194 soc_cleanup_platform_debugfs(platform);
956245e9
LG		 1195 module_put(platform->dev->driver->owner);
1196
1197 return ret;
1198}
1199
36ae1a96
MB		 1200static void rtd_release(struct device *dev)
1201{
1202 kfree(dev);
1203}
f0fba2ad 1204
589c3563
JN		 1205static int soc_post_component_init(struct snd_soc_card *card,
1206 struct snd_soc_codec *codec,
1207 int num, int dailess)
1208{
1209 struct snd_soc_dai_link *dai_link = NULL;
1210 struct snd_soc_aux_dev *aux_dev = NULL;
1211 struct snd_soc_pcm_runtime *rtd;
1212 const char *temp, *name;
1213 int ret = 0;
1214
1215 if (!dailess) {
1216 dai_link = &card->dai_link[num];
1217 rtd = &card->rtd[num];
1218 name = dai_link->name;
1219 } else {
1220 aux_dev = &card->aux_dev[num];
1221 rtd = &card->rtd_aux[num];
1222 name = aux_dev->name;
1223 }
0962bb21 1224 rtd->card = card;
589c3563 1225
4b1cfcb4
MB		 1226 /* Make sure all DAPM widgets are instantiated */
1227 snd_soc_dapm_new_widgets(&codec->dapm);
1228
589c3563
JN		 1229 /* machine controls, routes and widgets are not prefixed */
1230 temp = codec->name_prefix;
1231 codec->name_prefix = NULL;
1232
1233 /* do machine specific initialization */
1234 if (!dailess && dai_link->init)
1235 ret = dai_link->init(rtd);
1236 else if (dailess && aux_dev->init)
1237 ret = aux_dev->init(&codec->dapm);
1238 if (ret < 0) {
f110bfc7 1239 dev_err(card->dev, "ASoC: failed to init %s: %d\n", name, ret);
589c3563
JN		 1240 return ret;
1241 }
1242 codec->name_prefix = temp;
1243
589c3563
JN		 1244 /* register the rtd device */
1245 rtd->codec = codec;
36ae1a96
MB		 1246
1247 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1248 if (!rtd->dev)
1249 return -ENOMEM;
1250 device_initialize(rtd->dev);
1251 rtd->dev->parent = card->dev;
1252 rtd->dev->release = rtd_release;
1253 rtd->dev->init_name = name;
1254 dev_set_drvdata(rtd->dev, rtd);
b8c0dab9 1255 mutex_init(&rtd->pcm_mutex);
01d7584c
LG		 1256 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
1257 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
1258 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
1259 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
36ae1a96 1260 ret = device_add(rtd->dev);
589c3563 1261 if (ret < 0) {
865df9cb
CL		 1262 /* calling put_device() here to free the rtd->dev */
1263 put_device(rtd->dev);
589c3563 1264 dev_err(card->dev,
f110bfc7 1265 "ASoC: failed to register runtime device: %d\n", ret);
589c3563
JN		 1266 return ret;
1267 }
1268 rtd->dev_registered = 1;
1269
1270 /* add DAPM sysfs entries for this codec */
36ae1a96 1271 ret = snd_soc_dapm_sys_add(rtd->dev);
589c3563
JN		 1272 if (ret < 0)
1273 dev_err(codec->dev,
f110bfc7 1274 "ASoC: failed to add codec dapm sysfs entries: %d\n", ret);
589c3563
JN		 1275
1276 /* add codec sysfs entries */
36ae1a96 1277 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
589c3563
JN		 1278 if (ret < 0)
1279 dev_err(codec->dev,
f110bfc7 1280 "ASoC: failed to add codec sysfs files: %d\n", ret);
589c3563 1281
f86dcef8
LG		 1282#ifdef CONFIG_DEBUG_FS
1283 /* add DPCM sysfs entries */
cd0f8911 1284 if (!dailess && !dai_link->dynamic)
f86dcef8
LG		 1285 goto out;
1286
1287 ret = soc_dpcm_debugfs_add(rtd);
1288 if (ret < 0)
f110bfc7 1289 dev_err(rtd->dev, "ASoC: failed to add dpcm sysfs entries: %d\n", ret);
f86dcef8
LG		 1290
1291out:
1292#endif
589c3563
JN		 1293 return 0;
1294}
1295
62ae68fa
SW		 1296static int soc_probe_link_components(struct snd_soc_card *card, int num,
1297 int order)
1298{
1299 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1300 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1301 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1302 struct snd_soc_platform *platform = rtd->platform;
1303 int ret;
1304
1305 /* probe the CPU-side component, if it is a CODEC */
1306 if (cpu_dai->codec &&
1307 !cpu_dai->codec->probed &&
1308 cpu_dai->codec->driver->probe_order == order) {
1309 ret = soc_probe_codec(card, cpu_dai->codec);
1310 if (ret < 0)
1311 return ret;
1312 }
1313
1314 /* probe the CODEC-side component */
1315 if (!codec_dai->codec->probed &&
1316 codec_dai->codec->driver->probe_order == order) {
1317 ret = soc_probe_codec(card, codec_dai->codec);
1318 if (ret < 0)
1319 return ret;
1320 }
1321
1322 /* probe the platform */
1323 if (!platform->probed &&
1324 platform->driver->probe_order == order) {
1325 ret = soc_probe_platform(card, platform);
1326 if (ret < 0)
1327 return ret;
1328 }
1329
1330 return 0;
1331}
1332
1333static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 1334{
1335 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1336 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1337 struct snd_soc_codec *codec = rtd->codec;
1338 struct snd_soc_platform *platform = rtd->platform;
c74184ed
MB		 1339 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1340 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1341 struct snd_soc_dapm_widget *play_w, *capture_w;
f0fba2ad
LG		 1342 int ret;
1343
f110bfc7 1344 dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
0168bf0d 1345 card->name, num, order);
f0fba2ad
LG		 1346
1347 /* config components */
f0fba2ad 1348 cpu_dai->platform = platform;
f0fba2ad
LG		 1349 codec_dai->card = card;
1350 cpu_dai->card = card;
1351
1352 /* set default power off timeout */
1353 rtd->pmdown_time = pmdown_time;
1354
1355 /* probe the cpu_dai */
0168bf0d
LG		 1356 if (!cpu_dai->probed &&
1357 cpu_dai->driver->probe_order == order) {
a9db7dbe
SW		 1358 if (!cpu_dai->codec) {
1359 cpu_dai->dapm.card = card;
1360 if (!try_module_get(cpu_dai->dev->driver->owner))
1361 return -ENODEV;
61b61e3c 1362
18d75644 1363 list_add(&cpu_dai->dapm.list, &card->dapm_list);
a9db7dbe
SW		 1364 snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai);
1365 }
be09ad90 1366
f0fba2ad
LG		 1367 if (cpu_dai->driver->probe) {
1368 ret = cpu_dai->driver->probe(cpu_dai);
1369 if (ret < 0) {
f110bfc7
LG		 1370 dev_err(cpu_dai->dev,
1371 "ASoC: failed to probe CPU DAI %s: %d\n",
1372 cpu_dai->name, ret);
61b61e3c 1373 module_put(cpu_dai->dev->driver->owner);
f0fba2ad
LG		 1374 return ret;
1375 }
1376 }
1377 cpu_dai->probed = 1;
1c8371d6 1378 /* mark cpu_dai as probed and add to card dai list */
f0fba2ad 1379 list_add(&cpu_dai->card_list, &card->dai_dev_list);
db2a4165
FM		 1380 }
1381
f0fba2ad 1382 /* probe the CODEC DAI */
0168bf0d 1383 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
f0fba2ad
LG		 1384 if (codec_dai->driver->probe) {
1385 ret = codec_dai->driver->probe(codec_dai);
fe3e78e0 1386 if (ret < 0) {
f110bfc7
LG		 1387 dev_err(codec_dai->dev,
1388 "ASoC: failed to probe CODEC DAI %s: %d\n",
1389 codec_dai->name, ret);
f0fba2ad 1390 return ret;
fe3e78e0
MB		 1391 }
1392 }
f0fba2ad 1393
1c8371d6 1394 /* mark codec_dai as probed and add to card dai list */
f0fba2ad
LG		 1395 codec_dai->probed = 1;
1396 list_add(&codec_dai->card_list, &card->dai_dev_list);
fe3e78e0
MB		 1397 }
1398
0168bf0d
LG		 1399 /* complete DAI probe during last probe */
1400 if (order != SND_SOC_COMP_ORDER_LAST)
1401 return 0;
1402
589c3563
JN		 1403 ret = soc_post_component_init(card, codec, num, 0);
1404 if (ret)
f0fba2ad 1405 return ret;
fe3e78e0 1406
36ae1a96 1407 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
f0fba2ad 1408 if (ret < 0)
f110bfc7
LG		 1409 dev_warn(rtd->dev, "ASoC: failed to add pmdown_time sysfs: %d\n",
1410 ret);
f0fba2ad 1411
1245b700
NK		 1412 if (cpu_dai->driver->compress_dai) {
1413 /*create compress_device"*/
1414 ret = soc_new_compress(rtd, num);
c74184ed 1415 if (ret < 0) {
f110bfc7 1416 dev_err(card->dev, "ASoC: can't create compress %s\n",
1245b700 1417 dai_link->stream_name);
c74184ed
MB		 1418 return ret;
1419 }
1420 } else {
1245b700
NK		 1421
1422 if (!dai_link->params) {
1423 /* create the pcm */
1424 ret = soc_new_pcm(rtd, num);
1425 if (ret < 0) {
f110bfc7 1426 dev_err(card->dev, "ASoC: can't create pcm %s :%d\n",
1245b700 1427 dai_link->stream_name, ret);
c74184ed
MB		 1428 return ret;
1429 }
1245b700
NK		 1430 } else {
1431 /* link the DAI widgets */
1432 play_w = codec_dai->playback_widget;
1433 capture_w = cpu_dai->capture_widget;
1434 if (play_w && capture_w) {
1435 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1436 capture_w, play_w);
1437 if (ret != 0) {
f110bfc7 1438 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1245b700
NK		 1439 play_w->name, capture_w->name, ret);
1440 return ret;
1441 }
1442 }
c74184ed 1443
1245b700
NK		 1444 play_w = cpu_dai->playback_widget;
1445 capture_w = codec_dai->capture_widget;
1446 if (play_w && capture_w) {
1447 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
c74184ed 1448 capture_w, play_w);
1245b700 1449 if (ret != 0) {
f110bfc7 1450 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1245b700
NK		 1451 play_w->name, capture_w->name, ret);
1452 return ret;
1453 }
c74184ed
MB		 1454 }
1455 }
f0fba2ad
LG		 1456 }
1457
1458 /* add platform data for AC97 devices */
1459 if (rtd->codec_dai->driver->ac97_control)
1460 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1461
1462 return 0;
1463}
1464
fe3e78e0 1465#ifdef CONFIG_SND_SOC_AC97_BUS
f0fba2ad
LG		 1466static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1467{
1468 int ret;
1469
fe3e78e0
MB		 1470 /* Only instantiate AC97 if not already done by the adaptor
1471 * for the generic AC97 subsystem.
1472 */
f0fba2ad 1473 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
0562f788
MW		 1474 /*
1475 * It is possible that the AC97 device is already registered to
1476 * the device subsystem. This happens when the device is created
1477 * via snd_ac97_mixer(). Currently only SoC codec that does so
1478 * is the generic AC97 glue but others migh emerge.
1479 *
1480 * In those cases we don't try to register the device again.
1481 */
1482 if (!rtd->codec->ac97_created)
1483 return 0;
f0fba2ad
LG		 1484
1485 ret = soc_ac97_dev_register(rtd->codec);
fe3e78e0 1486 if (ret < 0) {
f110bfc7
LG		 1487 dev_err(rtd->codec->dev,
1488 "ASoC: AC97 device register failed: %d\n", ret);
f0fba2ad 1489 return ret;
fe3e78e0 1490 }
f0fba2ad
LG		 1491
1492 rtd->codec->ac97_registered = 1;
fe3e78e0 1493 }
f0fba2ad
LG		 1494 return 0;
1495}
1496
1497static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1498{
1499 if (codec->ac97_registered) {
1500 soc_ac97_dev_unregister(codec);
1501 codec->ac97_registered = 0;
1502 }
1503}
fe3e78e0
MB		 1504#endif
1505
b19e6e7b
MB		 1506static int soc_check_aux_dev(struct snd_soc_card *card, int num)
1507{
1508 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
1509 struct snd_soc_codec *codec;
1510
1511 /* find CODEC from registered CODECs*/
1512 list_for_each_entry(codec, &codec_list, list) {
1513 if (!strcmp(codec->name, aux_dev->codec_name))
1514 return 0;
1515 }
1516
f110bfc7 1517 dev_err(card->dev, "ASoC: %s not registered\n", aux_dev->codec_name);
fb099cb7 1518
b19e6e7b
MB		 1519 return -EPROBE_DEFER;
1520}
1521
2eea392d
JN		 1522static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1523{
1524 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
2eea392d 1525 struct snd_soc_codec *codec;
676ad98a 1526 int ret = -ENODEV;
2eea392d
JN		 1527
1528 /* find CODEC from registered CODECs*/
1529 list_for_each_entry(codec, &codec_list, list) {
1530 if (!strcmp(codec->name, aux_dev->codec_name)) {
1531 if (codec->probed) {
1532 dev_err(codec->dev,
f110bfc7 1533 "ASoC: codec already probed");
2eea392d
JN		 1534 ret = -EBUSY;
1535 goto out;
1536 }
676ad98a 1537 goto found;
2eea392d
JN		 1538 }
1539 }
676ad98a 1540 /* codec not found */
f110bfc7 1541 dev_err(card->dev, "ASoC: codec %s not found", aux_dev->codec_name);
b19e6e7b 1542 return -EPROBE_DEFER;
2eea392d 1543
676ad98a 1544found:
589c3563 1545 ret = soc_probe_codec(card, codec);
2eea392d 1546 if (ret < 0)
589c3563 1547 return ret;
2eea392d 1548
589c3563 1549 ret = soc_post_component_init(card, codec, num, 1);
2eea392d
JN		 1550
1551out:
1552 return ret;
1553}
1554
1555static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1556{
1557 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1558 struct snd_soc_codec *codec = rtd->codec;
2eea392d
JN		 1559
1560 /* unregister the rtd device */
1561 if (rtd->dev_registered) {
36ae1a96 1562 device_remove_file(rtd->dev, &dev_attr_codec_reg);
d3bf1561 1563 device_unregister(rtd->dev);
2eea392d
JN		 1564 rtd->dev_registered = 0;
1565 }
1566
589c3563
JN		 1567 if (codec && codec->probed)
1568 soc_remove_codec(codec);
2eea392d
JN		 1569}
1570
fdf0f54d
DP		 1571static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
1572 enum snd_soc_compress_type compress_type)
1573{
1574 int ret;
1575
1576 if (codec->cache_init)
1577 return 0;
1578
1579 /* override the compress_type if necessary */
1580 if (compress_type && codec->compress_type != compress_type)
1581 codec->compress_type = compress_type;
fdf0f54d
DP		 1582 ret = snd_soc_cache_init(codec);
1583 if (ret < 0) {
10e8aa9a
MM		 1584 dev_err(codec->dev,
1585 "ASoC: Failed to set cache compression type: %d\n",
1586 ret);
fdf0f54d
DP		 1587 return ret;
1588 }
1589 codec->cache_init = 1;
1590 return 0;
1591}
1592
b19e6e7b 1593static int snd_soc_instantiate_card(struct snd_soc_card *card)
f0fba2ad 1594{
fdf0f54d
DP		 1595 struct snd_soc_codec *codec;
1596 struct snd_soc_codec_conf *codec_conf;
1597 enum snd_soc_compress_type compress_type;
75d9ac46 1598 struct snd_soc_dai_link *dai_link;
f04209a7 1599 int ret, i, order, dai_fmt;
fe3e78e0 1600
01b9d99a 1601 mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
dbe21408 1602
f0fba2ad 1603 /* bind DAIs */
b19e6e7b
MB		 1604 for (i = 0; i < card->num_links; i++) {
1605 ret = soc_bind_dai_link(card, i);
1606 if (ret != 0)
1607 goto base_error;
1608 }
fe3e78e0 1609
b19e6e7b
MB		 1610 /* check aux_devs too */
1611 for (i = 0; i < card->num_aux_devs; i++) {
1612 ret = soc_check_aux_dev(card, i);
1613 if (ret != 0)
1614 goto base_error;
f0fba2ad 1615 }
435c5e25 1616
fdf0f54d
DP		 1617 /* initialize the register cache for each available codec */
1618 list_for_each_entry(codec, &codec_list, list) {
1619 if (codec->cache_init)
1620 continue;
861f2faf
DP		 1621 /* by default we don't override the compress_type */
1622 compress_type = 0;
fdf0f54d
DP		 1623 /* check to see if we need to override the compress_type */
1624 for (i = 0; i < card->num_configs; ++i) {
1625 codec_conf = &card->codec_conf[i];
1626 if (!strcmp(codec->name, codec_conf->dev_name)) {
1627 compress_type = codec_conf->compress_type;
1628 if (compress_type && compress_type
1629 != codec->compress_type)
1630 break;
1631 }
1632 }
fdf0f54d 1633 ret = snd_soc_init_codec_cache(codec, compress_type);
b19e6e7b
MB		 1634 if (ret < 0)
1635 goto base_error;
fdf0f54d
DP		 1636 }
1637
f0fba2ad
LG		 1638 /* card bind complete so register a sound card */
1639 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1640 card->owner, 0, &card->snd_card);
1641 if (ret < 0) {
10e8aa9a
MM		 1642 dev_err(card->dev,
1643 "ASoC: can't create sound card for card %s: %d\n",
1644 card->name, ret);
b19e6e7b 1645 goto base_error;
f0fba2ad
LG		 1646 }
1647 card->snd_card->dev = card->dev;
1648
e37a4970
MB		 1649 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1650 card->dapm.dev = card->dev;
1651 card->dapm.card = card;
1652 list_add(&card->dapm.list, &card->dapm_list);
1653
d5d1e0be
LPC		 1654#ifdef CONFIG_DEBUG_FS
1655 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1656#endif
1657
88ee1c61 1658#ifdef CONFIG_PM_SLEEP
f0fba2ad
LG		 1659 /* deferred resume work */
1660 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
1661#endif
db2a4165 1662
9a841ebb
MB		 1663 if (card->dapm_widgets)
1664 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1665 card->num_dapm_widgets);
1666
f0fba2ad
LG		 1667 /* initialise the sound card only once */
1668 if (card->probe) {
e7361ec4 1669 ret = card->probe(card);
f0fba2ad
LG		 1670 if (ret < 0)
1671 goto card_probe_error;
1672 }
fe3e78e0 1673
62ae68fa 1674 /* probe all components used by DAI links on this card */
0168bf0d
LG		 1675 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1676 order++) {
1677 for (i = 0; i < card->num_links; i++) {
62ae68fa 1678 ret = soc_probe_link_components(card, i, order);
0168bf0d 1679 if (ret < 0) {
f110bfc7
LG		 1680 dev_err(card->dev,
1681 "ASoC: failed to instantiate card %d\n",
1682 ret);
62ae68fa
SW		 1683 goto probe_dai_err;
1684 }
1685 }
1686 }
1687
1688 /* probe all DAI links on this card */
1689 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1690 order++) {
1691 for (i = 0; i < card->num_links; i++) {
1692 ret = soc_probe_link_dais(card, i, order);
1693 if (ret < 0) {
f110bfc7
LG		 1694 dev_err(card->dev,
1695 "ASoC: failed to instantiate card %d\n",
1696 ret);
0168bf0d
LG		 1697 goto probe_dai_err;
1698 }
f0fba2ad
LG		 1699 }
1700 }
db2a4165 1701
2eea392d
JN		 1702 for (i = 0; i < card->num_aux_devs; i++) {
1703 ret = soc_probe_aux_dev(card, i);
1704 if (ret < 0) {
f110bfc7
LG		 1705 dev_err(card->dev,
1706 "ASoC: failed to add auxiliary devices %d\n",
1707 ret);
2eea392d
JN		 1708 goto probe_aux_dev_err;
1709 }
1710 }
1711
888df395
MB		 1712 snd_soc_dapm_link_dai_widgets(card);
1713
b7af1daf 1714 if (card->controls)
022658be 1715 snd_soc_add_card_controls(card, card->controls, card->num_controls);
b7af1daf 1716
b8ad29de
MB		 1717 if (card->dapm_routes)
1718 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1719 card->num_dapm_routes);
1720
b90d2f90
MB		 1721 snd_soc_dapm_new_widgets(&card->dapm);
1722
75d9ac46
MB		 1723 for (i = 0; i < card->num_links; i++) {
1724 dai_link = &card->dai_link[i];
f04209a7 1725 dai_fmt = dai_link->dai_fmt;
75d9ac46 1726
f04209a7 1727 if (dai_fmt) {
75d9ac46 1728 ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai,
f04209a7 1729 dai_fmt);
5e4ba569 1730 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1731 dev_warn(card->rtd[i].codec_dai->dev,
f110bfc7 1732 "ASoC: Failed to set DAI format: %d\n",
75d9ac46 1733 ret);
f04209a7
MB		 1734 }
1735
1736 /* If this is a regular CPU link there will be a platform */
fe33d4c5
SW		 1737 if (dai_fmt &&
1738 (dai_link->platform_name || dai_link->platform_of_node)) {
f04209a7
MB		 1739 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1740 dai_fmt);
1741 if (ret != 0 && ret != -ENOTSUPP)
1742 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1743 "ASoC: Failed to set DAI format: %d\n",
f04209a7
MB		 1744 ret);
1745 } else if (dai_fmt) {
1746 /* Flip the polarity for the "CPU" end */
1747 dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
1748 switch (dai_link->dai_fmt &
1749 SND_SOC_DAIFMT_MASTER_MASK) {
1750 case SND_SOC_DAIFMT_CBM_CFM:
1751 dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
1752 break;
1753 case SND_SOC_DAIFMT_CBM_CFS:
1754 dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
1755 break;
1756 case SND_SOC_DAIFMT_CBS_CFM:
1757 dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
1758 break;
1759 case SND_SOC_DAIFMT_CBS_CFS:
1760 dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1761 break;
1762 }
75d9ac46
MB		 1763
1764 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
f04209a7 1765 dai_fmt);
5e4ba569 1766 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1767 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1768 "ASoC: Failed to set DAI format: %d\n",
75d9ac46
MB		 1769 ret);
1770 }
1771 }
1772
f0fba2ad 1773 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
f0fba2ad 1774 "%s", card->name);
22de71ba
LG		 1775 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1776 "%s", card->long_name ? card->long_name : card->name);
f0e8ed85
MB		 1777 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1778 "%s", card->driver_name ? card->driver_name : card->name);
1779 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1780 switch (card->snd_card->driver[i]) {
1781 case '_':
1782 case '-':
1783 case '\0':
1784 break;
1785 default:
1786 if (!isalnum(card->snd_card->driver[i]))
1787 card->snd_card->driver[i] = '_';
1788 break;
1789 }
1790 }
f0fba2ad 1791
28e9ad92
MB		 1792 if (card->late_probe) {
1793 ret = card->late_probe(card);
1794 if (ret < 0) {
f110bfc7 1795 dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n",
28e9ad92
MB		 1796 card->name, ret);
1797 goto probe_aux_dev_err;
1798 }
1799 }
1800
2dc00213
MB		 1801 snd_soc_dapm_new_widgets(&card->dapm);
1802
1633281b 1803 if (card->fully_routed)
b05d8dc1 1804 list_for_each_entry(codec, &card->codec_dev_list, card_list)
1633281b
SW		 1805 snd_soc_dapm_auto_nc_codec_pins(codec);
1806
f0fba2ad
LG		 1807 ret = snd_card_register(card->snd_card);
1808 if (ret < 0) {
f110bfc7
LG		 1809 dev_err(card->dev, "ASoC: failed to register soundcard %d\n",
1810 ret);
6b3ed785 1811 goto probe_aux_dev_err;
db2a4165
FM		 1812 }
1813
f0fba2ad
LG		 1814#ifdef CONFIG_SND_SOC_AC97_BUS
1815 /* register any AC97 codecs */
1816 for (i = 0; i < card->num_rtd; i++) {
6b3ed785
AL		 1817 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1818 if (ret < 0) {
10e8aa9a
MM		 1819 dev_err(card->dev,
1820 "ASoC: failed to register AC97: %d\n", ret);
6b3ed785 1821 while (--i >= 0)
7d8316df 1822 soc_unregister_ac97_dai_link(card->rtd[i].codec);
6b3ed785 1823 goto probe_aux_dev_err;
f0fba2ad 1824 }
6b3ed785 1825 }
f0fba2ad
LG		 1826#endif
1827
1828 card->instantiated = 1;
4f4c0072 1829 snd_soc_dapm_sync(&card->dapm);
f0fba2ad 1830 mutex_unlock(&card->mutex);
b19e6e7b
MB		 1831
1832 return 0;
f0fba2ad 1833
2eea392d
JN		 1834probe_aux_dev_err:
1835 for (i = 0; i < card->num_aux_devs; i++)
1836 soc_remove_aux_dev(card, i);
1837
f0fba2ad 1838probe_dai_err:
0671fd8e 1839 soc_remove_dai_links(card);
f0fba2ad
LG		 1840
1841card_probe_error:
87506549 1842 if (card->remove)
e7361ec4 1843 card->remove(card);
f0fba2ad
LG		 1844
1845 snd_card_free(card->snd_card);
1846
b19e6e7b 1847base_error:
f0fba2ad 1848 mutex_unlock(&card->mutex);
db2a4165 1849
b19e6e7b 1850 return ret;
435c5e25
MB		 1851}
1852
1853/* probes a new socdev */
1854static int soc_probe(struct platform_device *pdev)
1855{
f0fba2ad 1856 struct snd_soc_card *card = platform_get_drvdata(pdev);
435c5e25 1857
70a7ca34
VK		 1858 /*
1859 * no card, so machine driver should be registering card
1860 * we should not be here in that case so ret error
1861 */
1862 if (!card)
1863 return -EINVAL;
1864
fe4085e8 1865 dev_warn(&pdev->dev,
f110bfc7 1866 "ASoC: machine %s should use snd_soc_register_card()\n",
fe4085e8
MB		 1867 card->name);
1868
435c5e25
MB		 1869 /* Bodge while we unpick instantiation */
1870 card->dev = &pdev->dev;
f0fba2ad 1871
28d528c8 1872 return snd_soc_register_card(card);
db2a4165
FM		 1873}
1874
b0e26485 1875static int soc_cleanup_card_resources(struct snd_soc_card *card)
db2a4165
FM		 1876{
1877 int i;
db2a4165 1878
b0e26485
VK		 1879 /* make sure any delayed work runs */
1880 for (i = 0; i < card->num_rtd; i++) {
1881 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 1882 flush_delayed_work(&rtd->delayed_work);
b0e26485 1883 }
914dc182 1884
b0e26485
VK		 1885 /* remove auxiliary devices */
1886 for (i = 0; i < card->num_aux_devs; i++)
1887 soc_remove_aux_dev(card, i);
db2a4165 1888
b0e26485 1889 /* remove and free each DAI */
0671fd8e 1890 soc_remove_dai_links(card);
2eea392d 1891
b0e26485 1892 soc_cleanup_card_debugfs(card);
f0fba2ad 1893
b0e26485
VK		 1894 /* remove the card */
1895 if (card->remove)
e7361ec4 1896 card->remove(card);
a6052154 1897
0aaae527
LPC		 1898 snd_soc_dapm_free(&card->dapm);
1899
b0e26485
VK		 1900 snd_card_free(card->snd_card);
1901 return 0;
1902
1903}
1904
1905/* removes a socdev */
1906static int soc_remove(struct platform_device *pdev)
1907{
1908 struct snd_soc_card *card = platform_get_drvdata(pdev);
db2a4165 1909
c5af3a2e 1910 snd_soc_unregister_card(card);
db2a4165
FM		 1911 return 0;
1912}
1913
6f8ab4ac 1914int snd_soc_poweroff(struct device *dev)
51737470 1915{
6f8ab4ac 1916 struct snd_soc_card *card = dev_get_drvdata(dev);
f0fba2ad 1917 int i;
51737470
MB		 1918
1919 if (!card->instantiated)
416356fc 1920 return 0;
51737470
MB		 1921
1922 /* Flush out pmdown_time work - we actually do want to run it
1923 * now, we're shutting down so no imminent restart. */
f0fba2ad
LG		 1924 for (i = 0; i < card->num_rtd; i++) {
1925 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 1926 flush_delayed_work(&rtd->delayed_work);
f0fba2ad 1927 }
51737470 1928
f0fba2ad 1929 snd_soc_dapm_shutdown(card);
416356fc
MB		 1930
1931 return 0;
51737470 1932}
6f8ab4ac 1933EXPORT_SYMBOL_GPL(snd_soc_poweroff);
51737470 1934
6f8ab4ac 1935const struct dev_pm_ops snd_soc_pm_ops = {
b1dd5897
VK		 1936 .suspend = snd_soc_suspend,
1937 .resume = snd_soc_resume,
1938 .freeze = snd_soc_suspend,
1939 .thaw = snd_soc_resume,
6f8ab4ac 1940 .poweroff = snd_soc_poweroff,
b1dd5897 1941 .restore = snd_soc_resume,
416356fc 1942};
deb2607e 1943EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
416356fc 1944
db2a4165
FM		 1945/* ASoC platform driver */
1946static struct platform_driver soc_driver = {
1947 .driver = {
1948 .name = "soc-audio",
8b45a209 1949 .owner = THIS_MODULE,
6f8ab4ac 1950 .pm = &snd_soc_pm_ops,
db2a4165
FM		 1951 },
1952 .probe = soc_probe,
1953 .remove = soc_remove,
db2a4165
FM		 1954};
1955
096e49d5
MB		 1956/**
1957 * snd_soc_codec_volatile_register: Report if a register is volatile.
1958 *
1959 * @codec: CODEC to query.
1960 * @reg: Register to query.
1961 *
1962 * Boolean function indiciating if a CODEC register is volatile.
1963 */
181e055e
MB		 1964int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1965 unsigned int reg)
096e49d5 1966{
1500b7b5
DP		 1967 if (codec->volatile_register)
1968 return codec->volatile_register(codec, reg);
096e49d5
MB		 1969 else
1970 return 0;
1971}
1972EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1973
239c9706
DP		 1974/**
1975 * snd_soc_codec_readable_register: Report if a register is readable.
1976 *
1977 * @codec: CODEC to query.
1978 * @reg: Register to query.
1979 *
1980 * Boolean function indicating if a CODEC register is readable.
1981 */
1982int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
1983 unsigned int reg)
1984{
1985 if (codec->readable_register)
1986 return codec->readable_register(codec, reg);
1987 else
63fa0a28 1988 return 1;
239c9706
DP		 1989}
1990EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
1991
1992/**
1993 * snd_soc_codec_writable_register: Report if a register is writable.
1994 *
1995 * @codec: CODEC to query.
1996 * @reg: Register to query.
1997 *
1998 * Boolean function indicating if a CODEC register is writable.
1999 */
2000int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
2001 unsigned int reg)
2002{
2003 if (codec->writable_register)
2004 return codec->writable_register(codec, reg);
2005 else
63fa0a28 2006 return 1;
239c9706
DP		 2007}
2008EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
2009
f1442bc1
LG		 2010int snd_soc_platform_read(struct snd_soc_platform *platform,
2011 unsigned int reg)
2012{
2013 unsigned int ret;
2014
2015 if (!platform->driver->read) {
f110bfc7 2016 dev_err(platform->dev, "ASoC: platform has no read back\n");
f1442bc1
LG		 2017 return -1;
2018 }
2019
2020 ret = platform->driver->read(platform, reg);
2021 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
a82ce2ae 2022 trace_snd_soc_preg_read(platform, reg, ret);
f1442bc1
LG		 2023
2024 return ret;
2025}
2026EXPORT_SYMBOL_GPL(snd_soc_platform_read);
2027
2028int snd_soc_platform_write(struct snd_soc_platform *platform,
2029 unsigned int reg, unsigned int val)
2030{
2031 if (!platform->driver->write) {
f110bfc7 2032 dev_err(platform->dev, "ASoC: platform has no write back\n");
f1442bc1
LG		 2033 return -1;
2034 }
2035
2036 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
a82ce2ae 2037 trace_snd_soc_preg_write(platform, reg, val);
f1442bc1
LG		 2038 return platform->driver->write(platform, reg, val);
2039}
2040EXPORT_SYMBOL_GPL(snd_soc_platform_write);
2041
db2a4165
FM		 2042/**
2043 * snd_soc_new_ac97_codec - initailise AC97 device
2044 * @codec: audio codec
2045 * @ops: AC97 bus operations
2046 * @num: AC97 codec number
2047 *
2048 * Initialises AC97 codec resources for use by ad-hoc devices only.
2049 */
2050int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
2051 struct snd_ac97_bus_ops *ops, int num)
2052{
2053 mutex_lock(&codec->mutex);
2054
2055 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
2056 if (codec->ac97 == NULL) {
2057 mutex_unlock(&codec->mutex);
2058 return -ENOMEM;
2059 }
2060
2061 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
2062 if (codec->ac97->bus == NULL) {
2063 kfree(codec->ac97);
2064 codec->ac97 = NULL;
2065 mutex_unlock(&codec->mutex);
2066 return -ENOMEM;
2067 }
2068
2069 codec->ac97->bus->ops = ops;
2070 codec->ac97->num = num;
0562f788
MW		 2071
2072 /*
2073 * Mark the AC97 device to be created by us. This way we ensure that the
2074 * device will be registered with the device subsystem later on.
2075 */
2076 codec->ac97_created = 1;
2077
db2a4165
FM		 2078 mutex_unlock(&codec->mutex);
2079 return 0;
2080}
2081EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
2082
b047e1cc 2083struct snd_ac97_bus_ops *soc_ac97_ops;
f74b5e25 2084EXPORT_SYMBOL_GPL(soc_ac97_ops);
b047e1cc
MB		 2085
2086int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
2087{
2088 if (ops == soc_ac97_ops)
2089 return 0;
2090
2091 if (soc_ac97_ops && ops)
2092 return -EBUSY;
2093
2094 soc_ac97_ops = ops;
2095
2096 return 0;
2097}
2098EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops);
2099
db2a4165
FM		 2100/**
2101 * snd_soc_free_ac97_codec - free AC97 codec device
2102 * @codec: audio codec
2103 *
2104 * Frees AC97 codec device resources.
2105 */
2106void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
2107{
2108 mutex_lock(&codec->mutex);
f0fba2ad
LG		 2109#ifdef CONFIG_SND_SOC_AC97_BUS
2110 soc_unregister_ac97_dai_link(codec);
2111#endif
db2a4165
FM		 2112 kfree(codec->ac97->bus);
2113 kfree(codec->ac97);
2114 codec->ac97 = NULL;
0562f788 2115 codec->ac97_created = 0;
db2a4165
FM		 2116 mutex_unlock(&codec->mutex);
2117}
2118EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
2119
c3753707
MB		 2120unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
2121{
2122 unsigned int ret;
2123
c3acec26 2124 ret = codec->read(codec, reg);
c3753707 2125 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
a8b1d34f 2126 trace_snd_soc_reg_read(codec, reg, ret);
c3753707
MB		 2127
2128 return ret;
2129}
2130EXPORT_SYMBOL_GPL(snd_soc_read);
2131
2132unsigned int snd_soc_write(struct snd_soc_codec *codec,
2133 unsigned int reg, unsigned int val)
2134{
2135 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
a8b1d34f 2136 trace_snd_soc_reg_write(codec, reg, val);
c3acec26 2137 return codec->write(codec, reg, val);
c3753707
MB		 2138}
2139EXPORT_SYMBOL_GPL(snd_soc_write);
2140
5fb609d4
DP		 2141unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
2142 unsigned int reg, const void *data, size_t len)
2143{
2144 return codec->bulk_write_raw(codec, reg, data, len);
2145}
2146EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw);
2147
db2a4165
FM		 2148/**
2149 * snd_soc_update_bits - update codec register bits
2150 * @codec: audio codec
2151 * @reg: codec register
2152 * @mask: register mask
2153 * @value: new value
2154 *
2155 * Writes new register value.
2156 *
180c329d 2157 * Returns 1 for change, 0 for no change, or negative error code.
db2a4165
FM		 2158 */
2159int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2160 unsigned int mask, unsigned int value)
db2a4165 2161{
8a713da8 2162 bool change;
46f5822f 2163 unsigned int old, new;
180c329d
TT		 2164 int ret;
2165
8a713da8
MB		 2166 if (codec->using_regmap) {
2167 ret = regmap_update_bits_check(codec->control_data, reg,
2168 mask, value, &change);
2169 } else {
2170 ret = snd_soc_read(codec, reg);
180c329d
TT		 2171 if (ret < 0)
2172 return ret;
8a713da8
MB		 2173
2174 old = ret;
2175 new = (old & ~mask) | (value & mask);
2176 change = old != new;
2177 if (change)
2178 ret = snd_soc_write(codec, reg, new);
180c329d 2179 }
db2a4165 2180
8a713da8
MB		 2181 if (ret < 0)
2182 return ret;
2183
db2a4165
FM		 2184 return change;
2185}
2186EXPORT_SYMBOL_GPL(snd_soc_update_bits);
2187
6c508c62
EN		 2188/**
2189 * snd_soc_update_bits_locked - update codec register bits
2190 * @codec: audio codec
2191 * @reg: codec register
2192 * @mask: register mask
2193 * @value: new value
2194 *
2195 * Writes new register value, and takes the codec mutex.
2196 *
2197 * Returns 1 for change else 0.
2198 */
dd1b3d53
MB		 2199int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
2200 unsigned short reg, unsigned int mask,
2201 unsigned int value)
6c508c62
EN		 2202{
2203 int change;
2204
2205 mutex_lock(&codec->mutex);
2206 change = snd_soc_update_bits(codec, reg, mask, value);
2207 mutex_unlock(&codec->mutex);
2208
2209 return change;
2210}
dd1b3d53 2211EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
6c508c62 2212
db2a4165
FM		 2213/**
2214 * snd_soc_test_bits - test register for change
2215 * @codec: audio codec
2216 * @reg: codec register
2217 * @mask: register mask
2218 * @value: new value
2219 *
2220 * Tests a register with a new value and checks if the new value is
2221 * different from the old value.
2222 *
2223 * Returns 1 for change else 0.
2224 */
2225int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2226 unsigned int mask, unsigned int value)
db2a4165
FM		 2227{
2228 int change;
46f5822f 2229 unsigned int old, new;
db2a4165 2230
db2a4165
FM		 2231 old = snd_soc_read(codec, reg);
2232 new = (old & ~mask) | value;
2233 change = old != new;
db2a4165
FM		 2234
2235 return change;
2236}
2237EXPORT_SYMBOL_GPL(snd_soc_test_bits);
2238
db2a4165
FM		 2239/**
2240 * snd_soc_cnew - create new control
2241 * @_template: control template
2242 * @data: control private data
ac11a2b3 2243 * @long_name: control long name
efb7ac3f 2244 * @prefix: control name prefix
db2a4165
FM		 2245 *
2246 * Create a new mixer control from a template control.
2247 *
2248 * Returns 0 for success, else error.
2249 */
2250struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
3056557f 2251 void *data, const char *long_name,
efb7ac3f 2252 const char *prefix)
db2a4165
FM		 2253{
2254 struct snd_kcontrol_new template;
efb7ac3f
MB		 2255 struct snd_kcontrol *kcontrol;
2256 char *name = NULL;
db2a4165
FM		 2257
2258 memcpy(&template, _template, sizeof(template));
db2a4165
FM		 2259 template.index = 0;
2260
efb7ac3f
MB		 2261 if (!long_name)
2262 long_name = template.name;
2263
2264 if (prefix) {
2b581074 2265 name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name);
efb7ac3f
MB		 2266 if (!name)
2267 return NULL;
2268
efb7ac3f
MB		 2269 template.name = name;
2270 } else {
2271 template.name = long_name;
2272 }
2273
2274 kcontrol = snd_ctl_new1(&template, data);
2275
2276 kfree(name);
2277
2278 return kcontrol;
db2a4165
FM		 2279}
2280EXPORT_SYMBOL_GPL(snd_soc_cnew);
2281
022658be
LG		 2282static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2283 const struct snd_kcontrol_new *controls, int num_controls,
2284 const char *prefix, void *data)
2285{
2286 int err, i;
2287
2288 for (i = 0; i < num_controls; i++) {
2289 const struct snd_kcontrol_new *control = &controls[i];
2290 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2291 control->name, prefix));
2292 if (err < 0) {
f110bfc7
LG		 2293 dev_err(dev, "ASoC: Failed to add %s: %d\n",
2294 control->name, err);
022658be
LG		 2295 return err;
2296 }
2297 }
2298
2299 return 0;
2300}
2301
3e8e1952 2302/**
022658be
LG		 2303 * snd_soc_add_codec_controls - add an array of controls to a codec.
2304 * Convenience function to add a list of controls. Many codecs were
3e8e1952
IM		 2305 * duplicating this code.
2306 *
2307 * @codec: codec to add controls to
2308 * @controls: array of controls to add
2309 * @num_controls: number of elements in the array
2310 *
2311 * Return 0 for success, else error.
2312 */
022658be 2313int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
3e8e1952
IM		 2314 const struct snd_kcontrol_new *controls, int num_controls)
2315{
f0fba2ad 2316 struct snd_card *card = codec->card->snd_card;
3e8e1952 2317
022658be
LG		 2318 return snd_soc_add_controls(card, codec->dev, controls, num_controls,
2319 codec->name_prefix, codec);
3e8e1952 2320}
022658be 2321EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
3e8e1952 2322
a491a5c8
LG		 2323/**
2324 * snd_soc_add_platform_controls - add an array of controls to a platform.
022658be 2325 * Convenience function to add a list of controls.
a491a5c8
LG		 2326 *
2327 * @platform: platform to add controls to
2328 * @controls: array of controls to add
2329 * @num_controls: number of elements in the array
2330 *
2331 * Return 0 for success, else error.
2332 */
2333int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
2334 const struct snd_kcontrol_new *controls, int num_controls)
2335{
2336 struct snd_card *card = platform->card->snd_card;
a491a5c8 2337
022658be
LG		 2338 return snd_soc_add_controls(card, platform->dev, controls, num_controls,
2339 NULL, platform);
a491a5c8
LG		 2340}
2341EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2342
022658be
LG		 2343/**
2344 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2345 * Convenience function to add a list of controls.
2346 *
2347 * @soc_card: SoC card to add controls to
2348 * @controls: array of controls to add
2349 * @num_controls: number of elements in the array
2350 *
2351 * Return 0 for success, else error.
2352 */
2353int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2354 const struct snd_kcontrol_new *controls, int num_controls)
2355{
2356 struct snd_card *card = soc_card->snd_card;
2357
2358 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2359 NULL, soc_card);
2360}
2361EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2362
2363/**
2364 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2365 * Convienience function to add a list of controls.
2366 *
2367 * @dai: DAI to add controls to
2368 * @controls: array of controls to add
2369 * @num_controls: number of elements in the array
2370 *
2371 * Return 0 for success, else error.
2372 */
2373int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2374 const struct snd_kcontrol_new *controls, int num_controls)
2375{
2376 struct snd_card *card = dai->card->snd_card;
2377
2378 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2379 NULL, dai);
2380}
2381EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2382
db2a4165
FM		 2383/**
2384 * snd_soc_info_enum_double - enumerated double mixer info callback
2385 * @kcontrol: mixer control
2386 * @uinfo: control element information
2387 *
2388 * Callback to provide information about a double enumerated
2389 * mixer control.
2390 *
2391 * Returns 0 for success.
2392 */
2393int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2394 struct snd_ctl_elem_info *uinfo)
2395{
2396 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2397
2398 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2399 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
f8ba0b7b 2400 uinfo->value.enumerated.items = e->max;
db2a4165 2401
f8ba0b7b
JS		 2402 if (uinfo->value.enumerated.item > e->max - 1)
2403 uinfo->value.enumerated.item = e->max - 1;
db2a4165
FM		 2404 strcpy(uinfo->value.enumerated.name,
2405 e->texts[uinfo->value.enumerated.item]);
2406 return 0;
2407}
2408EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2409
2410/**
2411 * snd_soc_get_enum_double - enumerated double mixer get callback
2412 * @kcontrol: mixer control
ac11a2b3 2413 * @ucontrol: control element information
db2a4165
FM		 2414 *
2415 * Callback to get the value of a double enumerated mixer.
2416 *
2417 * Returns 0 for success.
2418 */
2419int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2420 struct snd_ctl_elem_value *ucontrol)
2421{
2422 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2423 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
86767b7d 2424 unsigned int val;
db2a4165 2425
db2a4165 2426 val = snd_soc_read(codec, e->reg);
3ff3f64b 2427 ucontrol->value.enumerated.item[0]
86767b7d 2428 = (val >> e->shift_l) & e->mask;
db2a4165
FM		 2429 if (e->shift_l != e->shift_r)
2430 ucontrol->value.enumerated.item[1] =
86767b7d 2431 (val >> e->shift_r) & e->mask;
db2a4165
FM		 2432
2433 return 0;
2434}
2435EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2436
2437/**
2438 * snd_soc_put_enum_double - enumerated double mixer put callback
2439 * @kcontrol: mixer control
ac11a2b3 2440 * @ucontrol: control element information
db2a4165
FM		 2441 *
2442 * Callback to set the value of a double enumerated mixer.
2443 *
2444 * Returns 0 for success.
2445 */
2446int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2447 struct snd_ctl_elem_value *ucontrol)
2448{
2449 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2450 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2451 unsigned int val;
86767b7d 2452 unsigned int mask;
db2a4165 2453
f8ba0b7b 2454 if (ucontrol->value.enumerated.item[0] > e->max - 1)
db2a4165
FM		 2455 return -EINVAL;
2456 val = ucontrol->value.enumerated.item[0] << e->shift_l;
86767b7d 2457 mask = e->mask << e->shift_l;
db2a4165 2458 if (e->shift_l != e->shift_r) {
f8ba0b7b 2459 if (ucontrol->value.enumerated.item[1] > e->max - 1)
db2a4165
FM		 2460 return -EINVAL;
2461 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
86767b7d 2462 mask |= e->mask << e->shift_r;
db2a4165
FM		 2463 }
2464
6c508c62 2465 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
db2a4165
FM		 2466}
2467EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2468
2e72f8e3
PU		 2469/**
2470 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2471 * @kcontrol: mixer control
2472 * @ucontrol: control element information
2473 *
2474 * Callback to get the value of a double semi enumerated mixer.
2475 *
2476 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2477 * used for handling bitfield coded enumeration for example.
2478 *
2479 * Returns 0 for success.
2480 */
2481int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2482 struct snd_ctl_elem_value *ucontrol)
2483{
2484 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2485 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2486 unsigned int reg_val, val, mux;
2e72f8e3
PU		 2487
2488 reg_val = snd_soc_read(codec, e->reg);
2489 val = (reg_val >> e->shift_l) & e->mask;
2490 for (mux = 0; mux < e->max; mux++) {
2491 if (val == e->values[mux])
2492 break;
2493 }
2494 ucontrol->value.enumerated.item[0] = mux;
2495 if (e->shift_l != e->shift_r) {
2496 val = (reg_val >> e->shift_r) & e->mask;
2497 for (mux = 0; mux < e->max; mux++) {
2498 if (val == e->values[mux])
2499 break;
2500 }
2501 ucontrol->value.enumerated.item[1] = mux;
2502 }
2503
2504 return 0;
2505}
2506EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2507
2508/**
2509 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2510 * @kcontrol: mixer control
2511 * @ucontrol: control element information
2512 *
2513 * Callback to set the value of a double semi enumerated mixer.
2514 *
2515 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2516 * used for handling bitfield coded enumeration for example.
2517 *
2518 * Returns 0 for success.
2519 */
2520int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2521 struct snd_ctl_elem_value *ucontrol)
2522{
2523 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2524 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2525 unsigned int val;
2526 unsigned int mask;
2e72f8e3
PU		 2527
2528 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2529 return -EINVAL;
2530 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2531 mask = e->mask << e->shift_l;
2532 if (e->shift_l != e->shift_r) {
2533 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2534 return -EINVAL;
2535 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2536 mask |= e->mask << e->shift_r;
2537 }
2538
6c508c62 2539 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
2e72f8e3
PU		 2540}
2541EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2542
db2a4165
FM		 2543/**
2544 * snd_soc_info_enum_ext - external enumerated single mixer info callback
2545 * @kcontrol: mixer control
2546 * @uinfo: control element information
2547 *
2548 * Callback to provide information about an external enumerated
2549 * single mixer.
2550 *
2551 * Returns 0 for success.
2552 */
2553int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
2554 struct snd_ctl_elem_info *uinfo)
2555{
2556 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2557
2558 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2559 uinfo->count = 1;
f8ba0b7b 2560 uinfo->value.enumerated.items = e->max;
db2a4165 2561
f8ba0b7b
JS		 2562 if (uinfo->value.enumerated.item > e->max - 1)
2563 uinfo->value.enumerated.item = e->max - 1;
db2a4165
FM		 2564 strcpy(uinfo->value.enumerated.name,
2565 e->texts[uinfo->value.enumerated.item]);
2566 return 0;
2567}
2568EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext);
2569
2570/**
2571 * snd_soc_info_volsw_ext - external single mixer info callback
2572 * @kcontrol: mixer control
2573 * @uinfo: control element information
2574 *
2575 * Callback to provide information about a single external mixer control.
2576 *
2577 * Returns 0 for success.
2578 */
2579int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
2580 struct snd_ctl_elem_info *uinfo)
2581{
a7a4ac86
PZ		 2582 int max = kcontrol->private_value;
2583
fd5dfad9 2584 if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2585 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2586 else
2587 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
db2a4165 2588
db2a4165
FM		 2589 uinfo->count = 1;
2590 uinfo->value.integer.min = 0;
a7a4ac86 2591 uinfo->value.integer.max = max;
db2a4165
FM		 2592 return 0;
2593}
2594EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
2595
db2a4165
FM		 2596/**
2597 * snd_soc_info_volsw - single mixer info callback
2598 * @kcontrol: mixer control
2599 * @uinfo: control element information
2600 *
e8f5a103
PU		 2601 * Callback to provide information about a single mixer control, or a double
2602 * mixer control that spans 2 registers.
db2a4165
FM		 2603 *
2604 * Returns 0 for success.
2605 */
2606int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2607 struct snd_ctl_elem_info *uinfo)
2608{
4eaa9819
JS		 2609 struct soc_mixer_control *mc =
2610 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2611 int platform_max;
db2a4165 2612
d11bb4a9
PU		 2613 if (!mc->platform_max)
2614 mc->platform_max = mc->max;
2615 platform_max = mc->platform_max;
2616
2617 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2618 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2619 else
2620 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2621
e8f5a103 2622 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
db2a4165 2623 uinfo->value.integer.min = 0;
d11bb4a9 2624 uinfo->value.integer.max = platform_max;
db2a4165
FM		 2625 return 0;
2626}
2627EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2628
2629/**
2630 * snd_soc_get_volsw - single mixer get callback
2631 * @kcontrol: mixer control
ac11a2b3 2632 * @ucontrol: control element information
db2a4165 2633 *
f7915d99
PU		 2634 * Callback to get the value of a single mixer control, or a double mixer
2635 * control that spans 2 registers.
db2a4165
FM		 2636 *
2637 * Returns 0 for success.
2638 */
2639int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2640 struct snd_ctl_elem_value *ucontrol)
2641{
4eaa9819
JS		 2642 struct soc_mixer_control *mc =
2643 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2644 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2645 unsigned int reg = mc->reg;
f7915d99 2646 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2647 unsigned int shift = mc->shift;
2648 unsigned int rshift = mc->rshift;
4eaa9819 2649 int max = mc->max;
815ecf8d
JS		 2650 unsigned int mask = (1 << fls(max)) - 1;
2651 unsigned int invert = mc->invert;
db2a4165
FM		 2652
2653 ucontrol->value.integer.value[0] =
2654 (snd_soc_read(codec, reg) >> shift) & mask;
f7915d99 2655 if (invert)
db2a4165 2656 ucontrol->value.integer.value[0] =
a7a4ac86 2657 max - ucontrol->value.integer.value[0];
f7915d99
PU		 2658
2659 if (snd_soc_volsw_is_stereo(mc)) {
2660 if (reg == reg2)
2661 ucontrol->value.integer.value[1] =
2662 (snd_soc_read(codec, reg) >> rshift) & mask;
2663 else
2664 ucontrol->value.integer.value[1] =
2665 (snd_soc_read(codec, reg2) >> shift) & mask;
2666 if (invert)
db2a4165 2667 ucontrol->value.integer.value[1] =
a7a4ac86 2668 max - ucontrol->value.integer.value[1];
db2a4165
FM		 2669 }
2670
2671 return 0;
2672}
2673EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2674
2675/**
2676 * snd_soc_put_volsw - single mixer put callback
2677 * @kcontrol: mixer control
ac11a2b3 2678 * @ucontrol: control element information
db2a4165 2679 *
974815ba
PU		 2680 * Callback to set the value of a single mixer control, or a double mixer
2681 * control that spans 2 registers.
db2a4165
FM		 2682 *
2683 * Returns 0 for success.
2684 */
2685int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2686 struct snd_ctl_elem_value *ucontrol)
2687{
4eaa9819
JS		 2688 struct soc_mixer_control *mc =
2689 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2690 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2691 unsigned int reg = mc->reg;
974815ba 2692 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2693 unsigned int shift = mc->shift;
2694 unsigned int rshift = mc->rshift;
4eaa9819 2695 int max = mc->max;
815ecf8d
JS		 2696 unsigned int mask = (1 << fls(max)) - 1;
2697 unsigned int invert = mc->invert;
974815ba
PU		 2698 int err;
2699 bool type_2r = 0;
2700 unsigned int val2 = 0;
2701 unsigned int val, val_mask;
db2a4165
FM		 2702
2703 val = (ucontrol->value.integer.value[0] & mask);
2704 if (invert)
a7a4ac86 2705 val = max - val;
db2a4165
FM		 2706 val_mask = mask << shift;
2707 val = val << shift;
974815ba 2708 if (snd_soc_volsw_is_stereo(mc)) {
db2a4165
FM		 2709 val2 = (ucontrol->value.integer.value[1] & mask);
2710 if (invert)
a7a4ac86 2711 val2 = max - val2;
974815ba
PU		 2712 if (reg == reg2) {
2713 val_mask |= mask << rshift;
2714 val |= val2 << rshift;
2715 } else {
2716 val2 = val2 << shift;
2717 type_2r = 1;
2718 }
db2a4165 2719 }
6c508c62 2720 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
3ff3f64b 2721 if (err < 0)
db2a4165
FM		 2722 return err;
2723
974815ba
PU		 2724 if (type_2r)
2725 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
2726
db2a4165
FM		 2727 return err;
2728}
974815ba 2729EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
db2a4165 2730
1d99f243
BA		 2731/**
2732 * snd_soc_get_volsw_sx - single mixer get callback
2733 * @kcontrol: mixer control
2734 * @ucontrol: control element information
2735 *
2736 * Callback to get the value of a single mixer control, or a double mixer
2737 * control that spans 2 registers.
2738 *
2739 * Returns 0 for success.
2740 */
2741int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
2742 struct snd_ctl_elem_value *ucontrol)
2743{
2744 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2745 struct soc_mixer_control *mc =
2746 (struct soc_mixer_control *)kcontrol->private_value;
2747
2748 unsigned int reg = mc->reg;
2749 unsigned int reg2 = mc->rreg;
2750 unsigned int shift = mc->shift;
2751 unsigned int rshift = mc->rshift;
2752 int max = mc->max;
2753 int min = mc->min;
2754 int mask = (1 << (fls(min + max) - 1)) - 1;
2755
2756 ucontrol->value.integer.value[0] =
2757 ((snd_soc_read(codec, reg) >> shift) - min) & mask;
2758
2759 if (snd_soc_volsw_is_stereo(mc))
2760 ucontrol->value.integer.value[1] =
2761 ((snd_soc_read(codec, reg2) >> rshift) - min) & mask;
2762
2763 return 0;
2764}
2765EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
2766
2767/**
2768 * snd_soc_put_volsw_sx - double mixer set callback
2769 * @kcontrol: mixer control
2770 * @uinfo: control element information
2771 *
2772 * Callback to set the value of a double mixer control that spans 2 registers.
2773 *
2774 * Returns 0 for success.
2775 */
2776int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
2777 struct snd_ctl_elem_value *ucontrol)
2778{
2779 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2780 struct soc_mixer_control *mc =
2781 (struct soc_mixer_control *)kcontrol->private_value;
2782
2783 unsigned int reg = mc->reg;
2784 unsigned int reg2 = mc->rreg;
2785 unsigned int shift = mc->shift;
2786 unsigned int rshift = mc->rshift;
2787 int max = mc->max;
2788 int min = mc->min;
2789 int mask = (1 << (fls(min + max) - 1)) - 1;
27f1d759 2790 int err = 0;
1d99f243
BA		 2791 unsigned short val, val_mask, val2 = 0;
2792
2793 val_mask = mask << shift;
2794 val = (ucontrol->value.integer.value[0] + min) & mask;
2795 val = val << shift;
2796
d055852e
MN		 2797 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
2798 if (err < 0)
2799 return err;
1d99f243
BA		 2800
2801 if (snd_soc_volsw_is_stereo(mc)) {
2802 val_mask = mask << rshift;
2803 val2 = (ucontrol->value.integer.value[1] + min) & mask;
2804 val2 = val2 << rshift;
2805
2806 if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2))
2807 return err;
2808 }
2809 return 0;
2810}
2811EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
2812
e13ac2e9
MB		 2813/**
2814 * snd_soc_info_volsw_s8 - signed mixer info callback
2815 * @kcontrol: mixer control
2816 * @uinfo: control element information
2817 *
2818 * Callback to provide information about a signed mixer control.
2819 *
2820 * Returns 0 for success.
2821 */
2822int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2823 struct snd_ctl_elem_info *uinfo)
2824{
4eaa9819
JS		 2825 struct soc_mixer_control *mc =
2826 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2827 int platform_max;
4eaa9819 2828 int min = mc->min;
e13ac2e9 2829
d11bb4a9
PU		 2830 if (!mc->platform_max)
2831 mc->platform_max = mc->max;
2832 platform_max = mc->platform_max;
2833
e13ac2e9
MB		 2834 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2835 uinfo->count = 2;
2836 uinfo->value.integer.min = 0;
d11bb4a9 2837 uinfo->value.integer.max = platform_max - min;
e13ac2e9
MB		 2838 return 0;
2839}
2840EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2841
2842/**
2843 * snd_soc_get_volsw_s8 - signed mixer get callback
2844 * @kcontrol: mixer control
ac11a2b3 2845 * @ucontrol: control element information
e13ac2e9
MB		 2846 *
2847 * Callback to get the value of a signed mixer control.
2848 *
2849 * Returns 0 for success.
2850 */
2851int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2852 struct snd_ctl_elem_value *ucontrol)
2853{
4eaa9819
JS		 2854 struct soc_mixer_control *mc =
2855 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2856 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2857 unsigned int reg = mc->reg;
4eaa9819 2858 int min = mc->min;
e13ac2e9
MB		 2859 int val = snd_soc_read(codec, reg);
2860
2861 ucontrol->value.integer.value[0] =
2862 ((signed char)(val & 0xff))-min;
2863 ucontrol->value.integer.value[1] =
2864 ((signed char)((val >> 8) & 0xff))-min;
2865 return 0;
2866}
2867EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2868
2869/**
2870 * snd_soc_put_volsw_sgn - signed mixer put callback
2871 * @kcontrol: mixer control
ac11a2b3 2872 * @ucontrol: control element information
e13ac2e9
MB		 2873 *
2874 * Callback to set the value of a signed mixer control.
2875 *
2876 * Returns 0 for success.
2877 */
2878int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
2879 struct snd_ctl_elem_value *ucontrol)
2880{
4eaa9819
JS		 2881 struct soc_mixer_control *mc =
2882 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2883 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2884 unsigned int reg = mc->reg;
4eaa9819 2885 int min = mc->min;
46f5822f 2886 unsigned int val;
e13ac2e9
MB		 2887
2888 val = (ucontrol->value.integer.value[0]+min) & 0xff;
2889 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
2890
6c508c62 2891 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
e13ac2e9
MB		 2892}
2893EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
2894
6c9d8cf6
AT		 2895/**
2896 * snd_soc_info_volsw_range - single mixer info callback with range.
2897 * @kcontrol: mixer control
2898 * @uinfo: control element information
2899 *
2900 * Callback to provide information, within a range, about a single
2901 * mixer control.
2902 *
2903 * returns 0 for success.
2904 */
2905int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
2906 struct snd_ctl_elem_info *uinfo)
2907{
2908 struct soc_mixer_control *mc =
2909 (struct soc_mixer_control *)kcontrol->private_value;
2910 int platform_max;
2911 int min = mc->min;
2912
2913 if (!mc->platform_max)
2914 mc->platform_max = mc->max;
2915 platform_max = mc->platform_max;
2916
2917 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
9bde4f0b 2918 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
6c9d8cf6
AT		 2919 uinfo->value.integer.min = 0;
2920 uinfo->value.integer.max = platform_max - min;
2921
2922 return 0;
2923}
2924EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
2925
2926/**
2927 * snd_soc_put_volsw_range - single mixer put value callback with range.
2928 * @kcontrol: mixer control
2929 * @ucontrol: control element information
2930 *
2931 * Callback to set the value, within a range, for a single mixer control.
2932 *
2933 * Returns 0 for success.
2934 */
2935int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
2936 struct snd_ctl_elem_value *ucontrol)
2937{
2938 struct soc_mixer_control *mc =
2939 (struct soc_mixer_control *)kcontrol->private_value;
2940 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2941 unsigned int reg = mc->reg;
9bde4f0b 2942 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 2943 unsigned int shift = mc->shift;
2944 int min = mc->min;
2945 int max = mc->max;
2946 unsigned int mask = (1 << fls(max)) - 1;
2947 unsigned int invert = mc->invert;
2948 unsigned int val, val_mask;
9bde4f0b 2949 int ret;
6c9d8cf6
AT		 2950
2951 val = ((ucontrol->value.integer.value[0] + min) & mask);
2952 if (invert)
2953 val = max - val;
2954 val_mask = mask << shift;
2955 val = val << shift;
2956
9bde4f0b 2957 ret = snd_soc_update_bits_locked(codec, reg, val_mask, val);
0eaa6cca 2958 if (ret < 0)
9bde4f0b
MB		 2959 return ret;
2960
2961 if (snd_soc_volsw_is_stereo(mc)) {
2962 val = ((ucontrol->value.integer.value[1] + min) & mask);
2963 if (invert)
2964 val = max - val;
2965 val_mask = mask << shift;
2966 val = val << shift;
2967
2968 ret = snd_soc_update_bits_locked(codec, rreg, val_mask, val);
2969 }
2970
2971 return ret;
6c9d8cf6
AT		 2972}
2973EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
2974
2975/**
2976 * snd_soc_get_volsw_range - single mixer get callback with range
2977 * @kcontrol: mixer control
2978 * @ucontrol: control element information
2979 *
2980 * Callback to get the value, within a range, of a single mixer control.
2981 *
2982 * Returns 0 for success.
2983 */
2984int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
2985 struct snd_ctl_elem_value *ucontrol)
2986{
2987 struct soc_mixer_control *mc =
2988 (struct soc_mixer_control *)kcontrol->private_value;
2989 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2990 unsigned int reg = mc->reg;
9bde4f0b 2991 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 2992 unsigned int shift = mc->shift;
2993 int min = mc->min;
2994 int max = mc->max;
2995 unsigned int mask = (1 << fls(max)) - 1;
2996 unsigned int invert = mc->invert;
2997
2998 ucontrol->value.integer.value[0] =
2999 (snd_soc_read(codec, reg) >> shift) & mask;
3000 if (invert)
3001 ucontrol->value.integer.value[0] =
3002 max - ucontrol->value.integer.value[0];
3003 ucontrol->value.integer.value[0] =
3004 ucontrol->value.integer.value[0] - min;
3005
9bde4f0b
MB		 3006 if (snd_soc_volsw_is_stereo(mc)) {
3007 ucontrol->value.integer.value[1] =
3008 (snd_soc_read(codec, rreg) >> shift) & mask;
3009 if (invert)
3010 ucontrol->value.integer.value[1] =
3011 max - ucontrol->value.integer.value[1];
3012 ucontrol->value.integer.value[1] =
3013 ucontrol->value.integer.value[1] - min;
3014 }
3015
6c9d8cf6
AT		 3016 return 0;
3017}
3018EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
3019
637d3847
PU		 3020/**
3021 * snd_soc_limit_volume - Set new limit to an existing volume control.
3022 *
3023 * @codec: where to look for the control
3024 * @name: Name of the control
3025 * @max: new maximum limit
3026 *
3027 * Return 0 for success, else error.
3028 */
3029int snd_soc_limit_volume(struct snd_soc_codec *codec,
3030 const char *name, int max)
3031{
f0fba2ad 3032 struct snd_card *card = codec->card->snd_card;
637d3847
PU		 3033 struct snd_kcontrol *kctl;
3034 struct soc_mixer_control *mc;
3035 int found = 0;
3036 int ret = -EINVAL;
3037
3038 /* Sanity check for name and max */
3039 if (unlikely(!name || max <= 0))
3040 return -EINVAL;
3041
3042 list_for_each_entry(kctl, &card->controls, list) {
3043 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
3044 found = 1;
3045 break;
3046 }
3047 }
3048 if (found) {
3049 mc = (struct soc_mixer_control *)kctl->private_value;
3050 if (max <= mc->max) {
d11bb4a9 3051 mc->platform_max = max;
637d3847
PU		 3052 ret = 0;
3053 }
3054 }
3055 return ret;
3056}
3057EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
3058
71d08516
MB		 3059int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
3060 struct snd_ctl_elem_info *uinfo)
3061{
3062 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3063 struct soc_bytes *params = (void *)kcontrol->private_value;
3064
3065 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
3066 uinfo->count = params->num_regs * codec->val_bytes;
3067
3068 return 0;
3069}
3070EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
3071
3072int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
3073 struct snd_ctl_elem_value *ucontrol)
3074{
3075 struct soc_bytes *params = (void *)kcontrol->private_value;
3076 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3077 int ret;
3078
3079 if (codec->using_regmap)
3080 ret = regmap_raw_read(codec->control_data, params->base,
3081 ucontrol->value.bytes.data,
3082 params->num_regs * codec->val_bytes);
3083 else
3084 ret = -EINVAL;
3085
f831b055
MB		 3086 /* Hide any masked bytes to ensure consistent data reporting */
3087 if (ret == 0 && params->mask) {
3088 switch (codec->val_bytes) {
3089 case 1:
3090 ucontrol->value.bytes.data[0] &= ~params->mask;
3091 break;
3092 case 2:
3093 ((u16 *)(&ucontrol->value.bytes.data))[0]
3094 &= ~params->mask;
3095 break;
3096 case 4:
3097 ((u32 *)(&ucontrol->value.bytes.data))[0]
3098 &= ~params->mask;
3099 break;
3100 default:
3101 return -EINVAL;
3102 }
3103 }
3104
71d08516
MB		 3105 return ret;
3106}
3107EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
3108
3109int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
3110 struct snd_ctl_elem_value *ucontrol)
3111{
3112 struct soc_bytes *params = (void *)kcontrol->private_value;
3113 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
f831b055
MB		 3114 int ret, len;
3115 unsigned int val;
3116 void *data;
71d08516 3117
f831b055
MB		 3118 if (!codec->using_regmap)
3119 return -EINVAL;
3120
f831b055
MB		 3121 len = params->num_regs * codec->val_bytes;
3122
b5a8fe43
MB		 3123 data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
3124 if (!data)
3125 return -ENOMEM;
3126
f831b055
MB		 3127 /*
3128 * If we've got a mask then we need to preserve the register
3129 * bits. We shouldn't modify the incoming data so take a
3130 * copy.
3131 */
3132 if (params->mask) {
3133 ret = regmap_read(codec->control_data, params->base, &val);
3134 if (ret != 0)
e8b18add 3135 goto out;
f831b055
MB		 3136
3137 val &= params->mask;
3138
f831b055
MB		 3139 switch (codec->val_bytes) {
3140 case 1:
3141 ((u8 *)data)[0] &= ~params->mask;
3142 ((u8 *)data)[0] |= val;
3143 break;
3144 case 2:
3145 ((u16 *)data)[0] &= cpu_to_be16(~params->mask);
3146 ((u16 *)data)[0] |= cpu_to_be16(val);
3147 break;
3148 case 4:
3149 ((u32 *)data)[0] &= cpu_to_be32(~params->mask);
3150 ((u32 *)data)[0] |= cpu_to_be32(val);
3151 break;
3152 default:
e8b18add
WY		 3153 ret = -EINVAL;
3154 goto out;
f831b055
MB		 3155 }
3156 }
3157
3158 ret = regmap_raw_write(codec->control_data, params->base,
3159 data, len);
3160
e8b18add 3161out:
b5a8fe43 3162 kfree(data);
71d08516
MB		 3163
3164 return ret;
3165}
3166EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
3167
4183eed2
KK		 3168/**
3169 * snd_soc_info_xr_sx - signed multi register info callback
3170 * @kcontrol: mreg control
3171 * @uinfo: control element information
3172 *
3173 * Callback to provide information of a control that can
3174 * span multiple codec registers which together
3175 * forms a single signed value in a MSB/LSB manner.
3176 *
3177 * Returns 0 for success.
3178 */
3179int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
3180 struct snd_ctl_elem_info *uinfo)
3181{
3182 struct soc_mreg_control *mc =
3183 (struct soc_mreg_control *)kcontrol->private_value;
3184 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3185 uinfo->count = 1;
3186 uinfo->value.integer.min = mc->min;
3187 uinfo->value.integer.max = mc->max;
3188
3189 return 0;
3190}
3191EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
3192
3193/**
3194 * snd_soc_get_xr_sx - signed multi register get callback
3195 * @kcontrol: mreg control
3196 * @ucontrol: control element information
3197 *
3198 * Callback to get the value of a control that can span
3199 * multiple codec registers which together forms a single
3200 * signed value in a MSB/LSB manner. The control supports
3201 * specifying total no of bits used to allow for bitfields
3202 * across the multiple codec registers.
3203 *
3204 * Returns 0 for success.
3205 */
3206int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
3207 struct snd_ctl_elem_value *ucontrol)
3208{
3209 struct soc_mreg_control *mc =
3210 (struct soc_mreg_control *)kcontrol->private_value;
3211 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3212 unsigned int regbase = mc->regbase;
3213 unsigned int regcount = mc->regcount;
3214 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3215 unsigned int regwmask = (1<<regwshift)-1;
3216 unsigned int invert = mc->invert;
3217 unsigned long mask = (1UL<<mc->nbits)-1;
3218 long min = mc->min;
3219 long max = mc->max;
3220 long val = 0;
3221 unsigned long regval;
3222 unsigned int i;
3223
3224 for (i = 0; i < regcount; i++) {
3225 regval = snd_soc_read(codec, regbase+i) & regwmask;
3226 val |= regval << (regwshift*(regcount-i-1));
3227 }
3228 val &= mask;
3229 if (min < 0 && val > max)
3230 val |= ~mask;
3231 if (invert)
3232 val = max - val;
3233 ucontrol->value.integer.value[0] = val;
3234
3235 return 0;
3236}
3237EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
3238
3239/**
3240 * snd_soc_put_xr_sx - signed multi register get callback
3241 * @kcontrol: mreg control
3242 * @ucontrol: control element information
3243 *
3244 * Callback to set the value of a control that can span
3245 * multiple codec registers which together forms a single
3246 * signed value in a MSB/LSB manner. The control supports
3247 * specifying total no of bits used to allow for bitfields
3248 * across the multiple codec registers.
3249 *
3250 * Returns 0 for success.
3251 */
3252int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
3253 struct snd_ctl_elem_value *ucontrol)
3254{
3255 struct soc_mreg_control *mc =
3256 (struct soc_mreg_control *)kcontrol->private_value;
3257 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3258 unsigned int regbase = mc->regbase;
3259 unsigned int regcount = mc->regcount;
3260 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3261 unsigned int regwmask = (1<<regwshift)-1;
3262 unsigned int invert = mc->invert;
3263 unsigned long mask = (1UL<<mc->nbits)-1;
4183eed2
KK		 3264 long max = mc->max;
3265 long val = ucontrol->value.integer.value[0];
3266 unsigned int i, regval, regmask;
3267 int err;
3268
3269 if (invert)
3270 val = max - val;
3271 val &= mask;
3272 for (i = 0; i < regcount; i++) {
3273 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
3274 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
3275 err = snd_soc_update_bits_locked(codec, regbase+i,
3276 regmask, regval);
3277 if (err < 0)
3278 return err;
3279 }
3280
3281 return 0;
3282}
3283EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
3284
dd7b10b3
KK		 3285/**
3286 * snd_soc_get_strobe - strobe get callback
3287 * @kcontrol: mixer control
3288 * @ucontrol: control element information
3289 *
3290 * Callback get the value of a strobe mixer control.
3291 *
3292 * Returns 0 for success.
3293 */
3294int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
3295 struct snd_ctl_elem_value *ucontrol)
3296{
3297 struct soc_mixer_control *mc =
3298 (struct soc_mixer_control *)kcontrol->private_value;
3299 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3300 unsigned int reg = mc->reg;
3301 unsigned int shift = mc->shift;
3302 unsigned int mask = 1 << shift;
3303 unsigned int invert = mc->invert != 0;
3304 unsigned int val = snd_soc_read(codec, reg) & mask;
3305
3306 if (shift != 0 && val != 0)
3307 val = val >> shift;
3308 ucontrol->value.enumerated.item[0] = val ^ invert;
3309
3310 return 0;
3311}
3312EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
3313
3314/**
3315 * snd_soc_put_strobe - strobe put callback
3316 * @kcontrol: mixer control
3317 * @ucontrol: control element information
3318 *
3319 * Callback strobe a register bit to high then low (or the inverse)
3320 * in one pass of a single mixer enum control.
3321 *
3322 * Returns 1 for success.
3323 */
3324int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
3325 struct snd_ctl_elem_value *ucontrol)
3326{
3327 struct soc_mixer_control *mc =
3328 (struct soc_mixer_control *)kcontrol->private_value;
3329 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3330 unsigned int reg = mc->reg;
3331 unsigned int shift = mc->shift;
3332 unsigned int mask = 1 << shift;
3333 unsigned int invert = mc->invert != 0;
3334 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
3335 unsigned int val1 = (strobe ^ invert) ? mask : 0;
3336 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
3337 int err;
3338
3339 err = snd_soc_update_bits_locked(codec, reg, mask, val1);
3340 if (err < 0)
3341 return err;
3342
3343 err = snd_soc_update_bits_locked(codec, reg, mask, val2);
3344 return err;
3345}
3346EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
3347
8c6529db
LG		 3348/**
3349 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3350 * @dai: DAI
3351 * @clk_id: DAI specific clock ID
3352 * @freq: new clock frequency in Hz
3353 * @dir: new clock direction - input/output.
3354 *
3355 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3356 */
3357int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
3358 unsigned int freq, int dir)
3359{
f0fba2ad
LG		 3360 if (dai->driver && dai->driver->ops->set_sysclk)
3361 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
ec4ee52a 3362 else if (dai->codec && dai->codec->driver->set_sysclk)
da1c6ea6 3363 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
ec4ee52a 3364 freq, dir);
8c6529db
LG		 3365 else
3366 return -EINVAL;
3367}
3368EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
3369
ec4ee52a
MB		 3370/**
3371 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3372 * @codec: CODEC
3373 * @clk_id: DAI specific clock ID
da1c6ea6 3374 * @source: Source for the clock
ec4ee52a
MB		 3375 * @freq: new clock frequency in Hz
3376 * @dir: new clock direction - input/output.
3377 *
3378 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3379 */
3380int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
da1c6ea6 3381 int source, unsigned int freq, int dir)
ec4ee52a
MB		 3382{
3383 if (codec->driver->set_sysclk)
da1c6ea6
MB		 3384 return codec->driver->set_sysclk(codec, clk_id, source,
3385 freq, dir);
ec4ee52a
MB		 3386 else
3387 return -EINVAL;
3388}
3389EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
3390
8c6529db
LG		 3391/**
3392 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3393 * @dai: DAI
ac11a2b3 3394 * @div_id: DAI specific clock divider ID
8c6529db
LG		 3395 * @div: new clock divisor.
3396 *
3397 * Configures the clock dividers. This is used to derive the best DAI bit and
3398 * frame clocks from the system or master clock. It's best to set the DAI bit
3399 * and frame clocks as low as possible to save system power.
3400 */
3401int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
3402 int div_id, int div)
3403{
f0fba2ad
LG		 3404 if (dai->driver && dai->driver->ops->set_clkdiv)
3405 return dai->driver->ops->set_clkdiv(dai, div_id, div);
8c6529db
LG		 3406 else
3407 return -EINVAL;
3408}
3409EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
3410
3411/**
3412 * snd_soc_dai_set_pll - configure DAI PLL.
3413 * @dai: DAI
3414 * @pll_id: DAI specific PLL ID
85488037 3415 * @source: DAI specific source for the PLL
8c6529db
LG		 3416 * @freq_in: PLL input clock frequency in Hz
3417 * @freq_out: requested PLL output clock frequency in Hz
3418 *
3419 * Configures and enables PLL to generate output clock based on input clock.
3420 */
85488037
MB		 3421int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
3422 unsigned int freq_in, unsigned int freq_out)
8c6529db 3423{
f0fba2ad
LG		 3424 if (dai->driver && dai->driver->ops->set_pll)
3425 return dai->driver->ops->set_pll(dai, pll_id, source,
85488037 3426 freq_in, freq_out);
ec4ee52a
MB		 3427 else if (dai->codec && dai->codec->driver->set_pll)
3428 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
3429 freq_in, freq_out);
8c6529db
LG		 3430 else
3431 return -EINVAL;
3432}
3433EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
3434
ec4ee52a
MB		 3435/*
3436 * snd_soc_codec_set_pll - configure codec PLL.
3437 * @codec: CODEC
3438 * @pll_id: DAI specific PLL ID
3439 * @source: DAI specific source for the PLL
3440 * @freq_in: PLL input clock frequency in Hz
3441 * @freq_out: requested PLL output clock frequency in Hz
3442 *
3443 * Configures and enables PLL to generate output clock based on input clock.
3444 */
3445int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
3446 unsigned int freq_in, unsigned int freq_out)
3447{
3448 if (codec->driver->set_pll)
3449 return codec->driver->set_pll(codec, pll_id, source,
3450 freq_in, freq_out);
3451 else
3452 return -EINVAL;
3453}
3454EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
3455
8c6529db
LG		 3456/**
3457 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3458 * @dai: DAI
8c6529db
LG		 3459 * @fmt: SND_SOC_DAIFMT_ format value.
3460 *
3461 * Configures the DAI hardware format and clocking.
3462 */
3463int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
3464{
5e4ba569 3465 if (dai->driver == NULL)
8c6529db 3466 return -EINVAL;
5e4ba569
SG		 3467 if (dai->driver->ops->set_fmt == NULL)
3468 return -ENOTSUPP;
3469 return dai->driver->ops->set_fmt(dai, fmt);
8c6529db
LG		 3470}
3471EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
3472
3473/**
3474 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3475 * @dai: DAI
a5479e38
DR		 3476 * @tx_mask: bitmask representing active TX slots.
3477 * @rx_mask: bitmask representing active RX slots.
8c6529db 3478 * @slots: Number of slots in use.
a5479e38 3479 * @slot_width: Width in bits for each slot.
8c6529db
LG		 3480 *
3481 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3482 * specific.
3483 */
3484int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
a5479e38 3485 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
8c6529db 3486{
f0fba2ad
LG		 3487 if (dai->driver && dai->driver->ops->set_tdm_slot)
3488 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
a5479e38 3489 slots, slot_width);
8c6529db
LG		 3490 else
3491 return -EINVAL;
3492}
3493EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
3494
472df3cb
BS		 3495/**
3496 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3497 * @dai: DAI
3498 * @tx_num: how many TX channels
3499 * @tx_slot: pointer to an array which imply the TX slot number channel
3500 * 0~num-1 uses
3501 * @rx_num: how many RX channels
3502 * @rx_slot: pointer to an array which imply the RX slot number channel
3503 * 0~num-1 uses
3504 *
3505 * configure the relationship between channel number and TDM slot number.
3506 */
3507int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3508 unsigned int tx_num, unsigned int *tx_slot,
3509 unsigned int rx_num, unsigned int *rx_slot)
3510{
f0fba2ad
LG		 3511 if (dai->driver && dai->driver->ops->set_channel_map)
3512 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
472df3cb
BS		 3513 rx_num, rx_slot);
3514 else
3515 return -EINVAL;
3516}
3517EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3518
8c6529db
LG		 3519/**
3520 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3521 * @dai: DAI
3522 * @tristate: tristate enable
3523 *
3524 * Tristates the DAI so that others can use it.
3525 */
3526int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3527{
f0fba2ad
LG		 3528 if (dai->driver && dai->driver->ops->set_tristate)
3529 return dai->driver->ops->set_tristate(dai, tristate);
8c6529db
LG		 3530 else
3531 return -EINVAL;
3532}
3533EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3534
3535/**
3536 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3537 * @dai: DAI
3538 * @mute: mute enable
da18396f 3539 * @direction: stream to mute
8c6529db
LG		 3540 *
3541 * Mutes the DAI DAC.
3542 */
da18396f
MB		 3543int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
3544 int direction)
8c6529db 3545{
da18396f
MB		 3546 if (!dai->driver)
3547 return -ENOTSUPP;
3548
3549 if (dai->driver->ops->mute_stream)
3550 return dai->driver->ops->mute_stream(dai, mute, direction);
3551 else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
3552 dai->driver->ops->digital_mute)
f0fba2ad 3553 return dai->driver->ops->digital_mute(dai, mute);
8c6529db 3554 else
04570c62 3555 return -ENOTSUPP;
8c6529db
LG		 3556}
3557EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3558
c5af3a2e
MB		 3559/**
3560 * snd_soc_register_card - Register a card with the ASoC core
3561 *
ac11a2b3 3562 * @card: Card to register
c5af3a2e 3563 *
c5af3a2e 3564 */
70a7ca34 3565int snd_soc_register_card(struct snd_soc_card *card)
c5af3a2e 3566{
b19e6e7b 3567 int i, ret;
f0fba2ad 3568
c5af3a2e
MB		 3569 if (!card->name || !card->dev)
3570 return -EINVAL;
3571
5a504963
SW		 3572 for (i = 0; i < card->num_links; i++) {
3573 struct snd_soc_dai_link *link = &card->dai_link[i];
3574
3575 /*
3576 * Codec must be specified by 1 of name or OF node,
3577 * not both or neither.
3578 */
3579 if (!!link->codec_name == !!link->codec_of_node) {
10e8aa9a
MM		 3580 dev_err(card->dev,
3581 "ASoC: Neither/both codec name/of_node are set for %s\n",
3582 link->name);
5a504963
SW		 3583 return -EINVAL;
3584 }
bc92657a
SW		 3585 /* Codec DAI name must be specified */
3586 if (!link->codec_dai_name) {
10e8aa9a
MM		 3587 dev_err(card->dev,
3588 "ASoC: codec_dai_name not set for %s\n",
3589 link->name);
bc92657a
SW		 3590 return -EINVAL;
3591 }
5a504963
SW		 3592
3593 /*
3594 * Platform may be specified by either name or OF node, but
3595 * can be left unspecified, and a dummy platform will be used.
3596 */
3597 if (link->platform_name && link->platform_of_node) {
10e8aa9a
MM		 3598 dev_err(card->dev,
3599 "ASoC: Both platform name/of_node are set for %s\n",
3600 link->name);
5a504963
SW		 3601 return -EINVAL;
3602 }
3603
3604 /*
bc92657a
SW		 3605 * CPU device may be specified by either name or OF node, but
3606 * can be left unspecified, and will be matched based on DAI
3607 * name alone..
3608 */
3609 if (link->cpu_name && link->cpu_of_node) {
10e8aa9a
MM		 3610 dev_err(card->dev,
3611 "ASoC: Neither/both cpu name/of_node are set for %s\n",
3612 link->name);
bc92657a
SW		 3613 return -EINVAL;
3614 }
3615 /*
3616 * At least one of CPU DAI name or CPU device name/node must be
3617 * specified
5a504963 3618 */
bc92657a
SW		 3619 if (!link->cpu_dai_name &&
3620 !(link->cpu_name || link->cpu_of_node)) {
10e8aa9a
MM		 3621 dev_err(card->dev,
3622 "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
3623 link->name);
5a504963
SW		 3624 return -EINVAL;
3625 }
3626 }
3627
ed77cc12
MB		 3628 dev_set_drvdata(card->dev, card);
3629
111c6419
SW		 3630 snd_soc_initialize_card_lists(card);
3631
150dd2f8
VK		 3632 soc_init_card_debugfs(card);
3633
181a6892
MB		 3634 card->rtd = devm_kzalloc(card->dev,
3635 sizeof(struct snd_soc_pcm_runtime) *
3636 (card->num_links + card->num_aux_devs),
3637 GFP_KERNEL);
f0fba2ad
LG		 3638 if (card->rtd == NULL)
3639 return -ENOMEM;
a7dbb603 3640 card->num_rtd = 0;
2eea392d 3641 card->rtd_aux = &card->rtd[card->num_links];
f0fba2ad
LG		 3642
3643 for (i = 0; i < card->num_links; i++)
3644 card->rtd[i].dai_link = &card->dai_link[i];
3645
c5af3a2e 3646 INIT_LIST_HEAD(&card->list);
db432b41 3647 INIT_LIST_HEAD(&card->dapm_dirty);
c5af3a2e 3648 card->instantiated = 0;
f0fba2ad 3649 mutex_init(&card->mutex);
a73fb2df 3650 mutex_init(&card->dapm_mutex);
c5af3a2e 3651
b19e6e7b
MB		 3652 ret = snd_soc_instantiate_card(card);
3653 if (ret != 0)
3654 soc_cleanup_card_debugfs(card);
c5af3a2e 3655
b19e6e7b 3656 return ret;
c5af3a2e 3657}
70a7ca34 3658EXPORT_SYMBOL_GPL(snd_soc_register_card);
c5af3a2e
MB		 3659
3660/**
3661 * snd_soc_unregister_card - Unregister a card with the ASoC core
3662 *
ac11a2b3 3663 * @card: Card to unregister
c5af3a2e 3664 *
c5af3a2e 3665 */
70a7ca34 3666int snd_soc_unregister_card(struct snd_soc_card *card)
c5af3a2e 3667{
b0e26485
VK		 3668 if (card->instantiated)
3669 soc_cleanup_card_resources(card);
f110bfc7 3670 dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name);
c5af3a2e
MB		 3671
3672 return 0;
3673}
70a7ca34 3674EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
c5af3a2e 3675
f0fba2ad
LG		 3676/*
3677 * Simplify DAI link configuration by removing ".-1" from device names
3678 * and sanitizing names.
3679 */
0b9a214a 3680static char *fmt_single_name(struct device *dev, int *id)
f0fba2ad
LG		 3681{
3682 char *found, name[NAME_SIZE];
3683 int id1, id2;
3684
3685 if (dev_name(dev) == NULL)
3686 return NULL;
3687
58818a77 3688 strlcpy(name, dev_name(dev), NAME_SIZE);
f0fba2ad
LG		 3689
3690 /* are we a "%s.%d" name (platform and SPI components) */
3691 found = strstr(name, dev->driver->name);
3692 if (found) {
3693 /* get ID */
3694 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3695
3696 /* discard ID from name if ID == -1 */
3697 if (*id == -1)
3698 found[strlen(dev->driver->name)] = '\0';
3699 }
3700
3701 } else {
3702 /* I2C component devices are named "bus-addr" */
3703 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3704 char tmp[NAME_SIZE];
3705
3706 /* create unique ID number from I2C addr and bus */
05899446 3707 *id = ((id1 & 0xffff) << 16) + id2;
f0fba2ad
LG		 3708
3709 /* sanitize component name for DAI link creation */
3710 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
58818a77 3711 strlcpy(name, tmp, NAME_SIZE);
f0fba2ad
LG		 3712 } else
3713 *id = 0;
3714 }
3715
3716 return kstrdup(name, GFP_KERNEL);
3717}
3718
3719/*
3720 * Simplify DAI link naming for single devices with multiple DAIs by removing
3721 * any ".-1" and using the DAI name (instead of device name).
3722 */
3723static inline char *fmt_multiple_name(struct device *dev,
3724 struct snd_soc_dai_driver *dai_drv)
3725{
3726 if (dai_drv->name == NULL) {
10e8aa9a
MM		 3727 dev_err(dev,
3728 "ASoC: error - multiple DAI %s registered with no name\n",
3729 dev_name(dev));
f0fba2ad
LG		 3730 return NULL;
3731 }
3732
3733 return kstrdup(dai_drv->name, GFP_KERNEL);
3734}
3735
9115171a
MB		 3736/**
3737 * snd_soc_register_dai - Register a DAI with the ASoC core
3738 *
ac11a2b3 3739 * @dai: DAI to register
9115171a 3740 */
f53179c0 3741static int snd_soc_register_dai(struct device *dev,
f0fba2ad 3742 struct snd_soc_dai_driver *dai_drv)
9115171a 3743{
054880fe 3744 struct snd_soc_codec *codec;
f0fba2ad
LG		 3745 struct snd_soc_dai *dai;
3746
f110bfc7 3747 dev_dbg(dev, "ASoC: dai register %s\n", dev_name(dev));
9115171a 3748
f0fba2ad
LG		 3749 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
3750 if (dai == NULL)
a7393623 3751 return -ENOMEM;
9115171a 3752
f0fba2ad
LG		 3753 /* create DAI component name */
3754 dai->name = fmt_single_name(dev, &dai->id);
3755 if (dai->name == NULL) {
3756 kfree(dai);
3757 return -ENOMEM;
3758 }
6335d055 3759
f0fba2ad
LG		 3760 dai->dev = dev;
3761 dai->driver = dai_drv;
be09ad90 3762 dai->dapm.dev = dev;
f0fba2ad
LG		 3763 if (!dai->driver->ops)
3764 dai->driver->ops = &null_dai_ops;
9115171a
MB		 3765
3766 mutex_lock(&client_mutex);
054880fe
MB		 3767
3768 list_for_each_entry(codec, &codec_list, list) {
3769 if (codec->dev == dev) {
f110bfc7 3770 dev_dbg(dev, "ASoC: Mapped DAI %s to CODEC %s\n",
054880fe
MB		 3771 dai->name, codec->name);
3772 dai->codec = codec;
3773 break;
3774 }
3775 }
3776
5f800080
PU		 3777 if (!dai->codec)
3778 dai->dapm.idle_bias_off = 1;
3779
9115171a 3780 list_add(&dai->list, &dai_list);
054880fe 3781
9115171a
MB		 3782 mutex_unlock(&client_mutex);
3783
f110bfc7 3784 dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
9115171a
MB		 3785
3786 return 0;
3787}
9115171a
MB		 3788
3789/**
3790 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3791 *
ac11a2b3 3792 * @dai: DAI to unregister
9115171a 3793 */
f53179c0 3794static void snd_soc_unregister_dai(struct device *dev)
9115171a 3795{
f0fba2ad
LG		 3796 struct snd_soc_dai *dai;
3797
3798 list_for_each_entry(dai, &dai_list, list) {
3799 if (dev == dai->dev)
3800 goto found;
3801 }
3802 return;
3803
3804found:
9115171a
MB		 3805 mutex_lock(&client_mutex);
3806 list_del(&dai->list);
3807 mutex_unlock(&client_mutex);
3808
f110bfc7 3809 dev_dbg(dev, "ASoC: Unregistered DAI '%s'\n", dai->name);
f0fba2ad
LG		 3810 kfree(dai->name);
3811 kfree(dai);
9115171a 3812}
9115171a
MB		 3813
3814/**
3815 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3816 *
ac11a2b3
MB		 3817 * @dai: Array of DAIs to register
3818 * @count: Number of DAIs
9115171a 3819 */
f53179c0 3820static int snd_soc_register_dais(struct device *dev,
f0fba2ad 3821 struct snd_soc_dai_driver *dai_drv, size_t count)
9115171a 3822{
054880fe 3823 struct snd_soc_codec *codec;
f0fba2ad
LG		 3824 struct snd_soc_dai *dai;
3825 int i, ret = 0;
3826
f110bfc7 3827 dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count);
9115171a
MB		 3828
3829 for (i = 0; i < count; i++) {
f0fba2ad
LG		 3830
3831 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
c46e0079
AL		 3832 if (dai == NULL) {
3833 ret = -ENOMEM;
3834 goto err;
3835 }
f0fba2ad
LG		 3836
3837 /* create DAI component name */
3838 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3839 if (dai->name == NULL) {
3840 kfree(dai);
3841 ret = -EINVAL;
9115171a 3842 goto err;
f0fba2ad
LG		 3843 }
3844
3845 dai->dev = dev;
f0fba2ad 3846 dai->driver = &dai_drv[i];
0f9141c9
MB		 3847 if (dai->driver->id)
3848 dai->id = dai->driver->id;
3849 else
3850 dai->id = i;
be09ad90 3851 dai->dapm.dev = dev;
f0fba2ad
LG		 3852 if (!dai->driver->ops)
3853 dai->driver->ops = &null_dai_ops;
3854
3855 mutex_lock(&client_mutex);
054880fe
MB		 3856
3857 list_for_each_entry(codec, &codec_list, list) {
3858 if (codec->dev == dev) {
10e8aa9a
MM		 3859 dev_dbg(dev,
3860 "ASoC: Mapped DAI %s to CODEC %s\n",
3861 dai->name, codec->name);
054880fe
MB		 3862 dai->codec = codec;
3863 break;
3864 }
3865 }
3866
5f800080
PU		 3867 if (!dai->codec)
3868 dai->dapm.idle_bias_off = 1;
3869
f0fba2ad 3870 list_add(&dai->list, &dai_list);
054880fe 3871
f0fba2ad
LG		 3872 mutex_unlock(&client_mutex);
3873
f110bfc7 3874 dev_dbg(dai->dev, "ASoC: Registered DAI '%s'\n", dai->name);
9115171a
MB		 3875 }
3876
3877 return 0;
3878
3879err:
3880 for (i--; i >= 0; i--)
f0fba2ad 3881 snd_soc_unregister_dai(dev);
9115171a
MB		 3882
3883 return ret;
3884}
9115171a
MB		 3885
3886/**
3887 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
3888 *
ac11a2b3
MB		 3889 * @dai: Array of DAIs to unregister
3890 * @count: Number of DAIs
9115171a 3891 */
f53179c0 3892static void snd_soc_unregister_dais(struct device *dev, size_t count)
9115171a
MB		 3893{
3894 int i;
3895
3896 for (i = 0; i < count; i++)
f0fba2ad 3897 snd_soc_unregister_dai(dev);
9115171a 3898}
9115171a 3899
12a48a8c 3900/**
71a45cda
LPC		 3901 * snd_soc_add_platform - Add a platform to the ASoC core
3902 * @dev: The parent device for the platform
3903 * @platform: The platform to add
3904 * @platform_driver: The driver for the platform
12a48a8c 3905 */
71a45cda 3906int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
d79e57db 3907 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 3908{
f0fba2ad
LG		 3909 /* create platform component name */
3910 platform->name = fmt_single_name(dev, &platform->id);
b5c745fb 3911 if (platform->name == NULL)
f0fba2ad 3912 return -ENOMEM;
12a48a8c 3913
f0fba2ad
LG		 3914 platform->dev = dev;
3915 platform->driver = platform_drv;
b7950641
LG		 3916 platform->dapm.dev = dev;
3917 platform->dapm.platform = platform;
64a648c2 3918 platform->dapm.stream_event = platform_drv->stream_event;
cc22d37e 3919 mutex_init(&platform->mutex);
12a48a8c
MB		 3920
3921 mutex_lock(&client_mutex);
3922 list_add(&platform->list, &platform_list);
3923 mutex_unlock(&client_mutex);
3924
f110bfc7 3925 dev_dbg(dev, "ASoC: Registered platform '%s'\n", platform->name);
12a48a8c
MB		 3926
3927 return 0;
3928}
71a45cda 3929EXPORT_SYMBOL_GPL(snd_soc_add_platform);
12a48a8c
MB		 3930
3931/**
71a45cda 3932 * snd_soc_register_platform - Register a platform with the ASoC core
12a48a8c 3933 *
71a45cda 3934 * @platform: platform to register
12a48a8c 3935 */
71a45cda
LPC		 3936int snd_soc_register_platform(struct device *dev,
3937 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 3938{
f0fba2ad 3939 struct snd_soc_platform *platform;
71a45cda 3940 int ret;
f0fba2ad 3941
71a45cda 3942 dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev));
f0fba2ad 3943
71a45cda
LPC		 3944 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
3945 if (platform == NULL)
3946 return -ENOMEM;
3947
3948 ret = snd_soc_add_platform(dev, platform, platform_drv);
3949 if (ret)
3950 kfree(platform);
3951
3952 return ret;
3953}
3954EXPORT_SYMBOL_GPL(snd_soc_register_platform);
3955
3956/**
3957 * snd_soc_remove_platform - Remove a platform from the ASoC core
3958 * @platform: the platform to remove
3959 */
3960void snd_soc_remove_platform(struct snd_soc_platform *platform)
3961{
12a48a8c
MB		 3962 mutex_lock(&client_mutex);
3963 list_del(&platform->list);
3964 mutex_unlock(&client_mutex);
3965
71a45cda
LPC		 3966 dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n",
3967 platform->name);
f0fba2ad 3968 kfree(platform->name);
71a45cda
LPC		 3969}
3970EXPORT_SYMBOL_GPL(snd_soc_remove_platform);
3971
3972struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
3973{
3974 struct snd_soc_platform *platform;
3975
3976 list_for_each_entry(platform, &platform_list, list) {
3977 if (dev == platform->dev)
3978 return platform;
3979 }
3980
3981 return NULL;
3982}
3983EXPORT_SYMBOL_GPL(snd_soc_lookup_platform);
3984
3985/**
3986 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
3987 *
3988 * @platform: platform to unregister
3989 */
3990void snd_soc_unregister_platform(struct device *dev)
3991{
3992 struct snd_soc_platform *platform;
3993
3994 platform = snd_soc_lookup_platform(dev);
3995 if (!platform)
3996 return;
3997
3998 snd_soc_remove_platform(platform);
f0fba2ad 3999 kfree(platform);
12a48a8c
MB		 4000}
4001EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
4002
151ab22c
MB		 4003static u64 codec_format_map[] = {
4004 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
4005 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
4006 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
4007 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
4008 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
4009 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
4010 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4011 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4012 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
4013 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
4014 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
4015 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
4016 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
4017 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
4018 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
4019 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
4020};
4021
4022/* Fix up the DAI formats for endianness: codecs don't actually see
4023 * the endianness of the data but we're using the CPU format
4024 * definitions which do need to include endianness so we ensure that
4025 * codec DAIs always have both big and little endian variants set.
4026 */
4027static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
4028{
4029 int i;
4030
4031 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
4032 if (stream->formats & codec_format_map[i])
4033 stream->formats |= codec_format_map[i];
4034}
4035
0d0cf00a
MB		 4036/**
4037 * snd_soc_register_codec - Register a codec with the ASoC core
4038 *
ac11a2b3 4039 * @codec: codec to register
0d0cf00a 4040 */
f0fba2ad 4041int snd_soc_register_codec(struct device *dev,
001ae4c0
MB		 4042 const struct snd_soc_codec_driver *codec_drv,
4043 struct snd_soc_dai_driver *dai_drv,
4044 int num_dai)
0d0cf00a 4045{
3335ddca 4046 size_t reg_size;
f0fba2ad
LG		 4047 struct snd_soc_codec *codec;
4048 int ret, i;
151ab22c 4049
f0fba2ad
LG		 4050 dev_dbg(dev, "codec register %s\n", dev_name(dev));
4051
4052 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
4053 if (codec == NULL)
4054 return -ENOMEM;
0d0cf00a 4055
f0fba2ad
LG		 4056 /* create CODEC component name */
4057 codec->name = fmt_single_name(dev, &codec->id);
4058 if (codec->name == NULL) {
f790b94d
KM		 4059 ret = -ENOMEM;
4060 goto fail_codec;
f0fba2ad
LG		 4061 }
4062
23bbce34
DP		 4063 if (codec_drv->compress_type)
4064 codec->compress_type = codec_drv->compress_type;
4065 else
4066 codec->compress_type = SND_SOC_FLAT_COMPRESSION;
4067
c3acec26
MB		 4068 codec->write = codec_drv->write;
4069 codec->read = codec_drv->read;
1500b7b5
DP		 4070 codec->volatile_register = codec_drv->volatile_register;
4071 codec->readable_register = codec_drv->readable_register;
8020454c 4072 codec->writable_register = codec_drv->writable_register;
5124e69e 4073 codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time;
ce6120cc
LG		 4074 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
4075 codec->dapm.dev = dev;
4076 codec->dapm.codec = codec;
474b62d6 4077 codec->dapm.seq_notifier = codec_drv->seq_notifier;
64a648c2 4078 codec->dapm.stream_event = codec_drv->stream_event;
7a30a3db
DP		 4079 codec->dev = dev;
4080 codec->driver = codec_drv;
4081 codec->num_dai = num_dai;
4082 mutex_init(&codec->mutex);
ce6120cc 4083
f0fba2ad
LG		 4084 /* allocate CODEC register cache */
4085 if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
3335ddca 4086 reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
aea170a0 4087 codec->reg_size = reg_size;
3335ddca
DP		 4088 /* it is necessary to make a copy of the default register cache
4089 * because in the case of using a compression type that requires
f6e65744 4090 * the default register cache to be marked as the
3335ddca
DP		 4091 * kernel might have freed the array by the time we initialize
4092 * the cache.
4093 */
2aa86323
DP		 4094 if (codec_drv->reg_cache_default) {
4095 codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
4096 reg_size, GFP_KERNEL);
4097 if (!codec->reg_def_copy) {
4098 ret = -ENOMEM;
f790b94d 4099 goto fail_codec_name;
2aa86323 4100 }
f0fba2ad 4101 }
151ab22c
MB		 4102 }
4103
1500b7b5
DP		 4104 if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
4105 if (!codec->volatile_register)
4106 codec->volatile_register = snd_soc_default_volatile_register;
4107 if (!codec->readable_register)
4108 codec->readable_register = snd_soc_default_readable_register;
8020454c
DP		 4109 if (!codec->writable_register)
4110 codec->writable_register = snd_soc_default_writable_register;
1500b7b5
DP		 4111 }
4112
f0fba2ad
LG		 4113 for (i = 0; i < num_dai; i++) {
4114 fixup_codec_formats(&dai_drv[i].playback);
4115 fixup_codec_formats(&dai_drv[i].capture);
4116 }
4117
054880fe
MB		 4118 mutex_lock(&client_mutex);
4119 list_add(&codec->list, &codec_list);
4120 mutex_unlock(&client_mutex);
4121
26b01ccd 4122 /* register any DAIs */
5acd7dfb
KM		 4123 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
4124 if (ret < 0) {
4125 dev_err(codec->dev, "ASoC: Failed to regster DAIs: %d\n", ret);
4126 goto fail_codec_name;
26b01ccd 4127 }
f0fba2ad 4128
f110bfc7 4129 dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", codec->name);
0d0cf00a 4130 return 0;
f0fba2ad 4131
f790b94d 4132fail_codec_name:
e1328a83
KM		 4133 mutex_lock(&client_mutex);
4134 list_del(&codec->list);
4135 mutex_unlock(&client_mutex);
4136
f0fba2ad 4137 kfree(codec->name);
f790b94d 4138fail_codec:
f0fba2ad
LG		 4139 kfree(codec);
4140 return ret;
0d0cf00a
MB		 4141}
4142EXPORT_SYMBOL_GPL(snd_soc_register_codec);
4143
4144/**
4145 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4146 *
ac11a2b3 4147 * @codec: codec to unregister
0d0cf00a 4148 */
f0fba2ad 4149void snd_soc_unregister_codec(struct device *dev)
0d0cf00a 4150{
f0fba2ad 4151 struct snd_soc_codec *codec;
f0fba2ad
LG		 4152
4153 list_for_each_entry(codec, &codec_list, list) {
4154 if (dev == codec->dev)
4155 goto found;
4156 }
4157 return;
4158
4159found:
5acd7dfb 4160 snd_soc_unregister_dais(dev, codec->num_dai);
f0fba2ad 4161
0d0cf00a
MB		 4162 mutex_lock(&client_mutex);
4163 list_del(&codec->list);
4164 mutex_unlock(&client_mutex);
4165
f110bfc7 4166 dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", codec->name);
f0fba2ad 4167
7a30a3db 4168 snd_soc_cache_exit(codec);
3335ddca 4169 kfree(codec->reg_def_copy);
1aafcd4d 4170 kfree(codec->name);
f0fba2ad 4171 kfree(codec);
0d0cf00a
MB		 4172}
4173EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
4174
030e79f6
KM		 4175
4176/**
4177 * snd_soc_register_component - Register a component with the ASoC core
4178 *
4179 */
4180int snd_soc_register_component(struct device *dev,
4181 const struct snd_soc_component_driver *cmpnt_drv,
4182 struct snd_soc_dai_driver *dai_drv,
4183 int num_dai)
4184{
4185 struct snd_soc_component *cmpnt;
4186 int ret;
4187
4188 dev_dbg(dev, "component register %s\n", dev_name(dev));
4189
4190 cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL);
4191 if (!cmpnt) {
4192 dev_err(dev, "ASoC: Failed to allocate memory\n");
4193 return -ENOMEM;
4194 }
4195
4196 cmpnt->name = fmt_single_name(dev, &cmpnt->id);
4197 if (!cmpnt->name) {
4198 dev_err(dev, "ASoC: Failed to simplifying name\n");
4199 return -ENOMEM;
4200 }
4201
4202 cmpnt->dev = dev;
4203 cmpnt->driver = cmpnt_drv;
4204 cmpnt->num_dai = num_dai;
4205
a1422b8c
KM		 4206 /*
4207 * snd_soc_register_dai() uses fmt_single_name(), and
4208 * snd_soc_register_dais() uses fmt_multiple_name()
4209 * for dai->name which is used for name based matching
4210 */
4211 if (1 == num_dai)
4212 ret = snd_soc_register_dai(dev, dai_drv);
4213 else
4214 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
030e79f6
KM		 4215 if (ret < 0) {
4216 dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
4217 goto error_component_name;
4218 }
4219
4220 mutex_lock(&client_mutex);
4221 list_add(&cmpnt->list, &component_list);
4222 mutex_unlock(&client_mutex);
4223
4224 dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name);
4225
4226 return ret;
4227
4228error_component_name:
4229 kfree(cmpnt->name);
4230
4231 return ret;
4232}
2e1cc199 4233EXPORT_SYMBOL_GPL(snd_soc_register_component);
030e79f6
KM		 4234
4235/**
4236 * snd_soc_unregister_component - Unregister a component from the ASoC core
4237 *
4238 */
4239void snd_soc_unregister_component(struct device *dev)
4240{
4241 struct snd_soc_component *cmpnt;
4242
4243 list_for_each_entry(cmpnt, &component_list, list) {
4244 if (dev == cmpnt->dev)
4245 goto found;
4246 }
4247 return;
4248
4249found:
4250 snd_soc_unregister_dais(dev, cmpnt->num_dai);
4251
4252 mutex_lock(&client_mutex);
4253 list_del(&cmpnt->list);
4254 mutex_unlock(&client_mutex);
4255
4256 dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name);
4257 kfree(cmpnt->name);
4258}
2e1cc199 4259EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
030e79f6 4260
bec4fa05
SW		 4261/* Retrieve a card's name from device tree */
4262int snd_soc_of_parse_card_name(struct snd_soc_card *card,
4263 const char *propname)
4264{
4265 struct device_node *np = card->dev->of_node;
4266 int ret;
4267
4268 ret = of_property_read_string_index(np, propname, 0, &card->name);
4269 /*
4270 * EINVAL means the property does not exist. This is fine providing
4271 * card->name was previously set, which is checked later in
4272 * snd_soc_register_card.
4273 */
4274 if (ret < 0 && ret != -EINVAL) {
4275 dev_err(card->dev,
f110bfc7 4276 "ASoC: Property '%s' could not be read: %d\n",
bec4fa05
SW		 4277 propname, ret);
4278 return ret;
4279 }
4280
4281 return 0;
4282}
4283EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
4284
a4a54dd5
SW		 4285int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
4286 const char *propname)
4287{
4288 struct device_node *np = card->dev->of_node;
4289 int num_routes;
4290 struct snd_soc_dapm_route *routes;
4291 int i, ret;
4292
4293 num_routes = of_property_count_strings(np, propname);
c34ce320 4294 if (num_routes < 0 || num_routes & 1) {
10e8aa9a
MM		 4295 dev_err(card->dev,
4296 "ASoC: Property '%s' does not exist or its length is not even\n",
4297 propname);
a4a54dd5
SW		 4298 return -EINVAL;
4299 }
4300 num_routes /= 2;
4301 if (!num_routes) {
f110bfc7 4302 dev_err(card->dev, "ASoC: Property '%s's length is zero\n",
a4a54dd5
SW		 4303 propname);
4304 return -EINVAL;
4305 }
4306
4307 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
4308 GFP_KERNEL);
4309 if (!routes) {
4310 dev_err(card->dev,
f110bfc7 4311 "ASoC: Could not allocate DAPM route table\n");
a4a54dd5
SW		 4312 return -EINVAL;
4313 }
4314
4315 for (i = 0; i < num_routes; i++) {
4316 ret = of_property_read_string_index(np, propname,
4317 2 * i, &routes[i].sink);
4318 if (ret) {
c871bd0b
MB		 4319 dev_err(card->dev,
4320 "ASoC: Property '%s' index %d could not be read: %d\n",
4321 propname, 2 * i, ret);
a4a54dd5
SW		 4322 return -EINVAL;
4323 }
4324 ret = of_property_read_string_index(np, propname,
4325 (2 * i) + 1, &routes[i].source);
4326 if (ret) {
4327 dev_err(card->dev,
c871bd0b
MB		 4328 "ASoC: Property '%s' index %d could not be read: %d\n",
4329 propname, (2 * i) + 1, ret);
a4a54dd5
SW		 4330 return -EINVAL;
4331 }
4332 }
4333
4334 card->num_dapm_routes = num_routes;
4335 card->dapm_routes = routes;
4336
4337 return 0;
4338}
4339EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
4340
a7930ed4
KM		 4341unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
4342 const char *prefix)
4343{
4344 int ret, i;
4345 char prop[128];
4346 unsigned int format = 0;
4347 int bit, frame;
4348 const char *str;
4349 struct {
4350 char *name;
4351 unsigned int val;
4352 } of_fmt_table[] = {
4353 { "i2s", SND_SOC_DAIFMT_I2S },
4354 { "right_j", SND_SOC_DAIFMT_RIGHT_J },
4355 { "left_j", SND_SOC_DAIFMT_LEFT_J },
4356 { "dsp_a", SND_SOC_DAIFMT_DSP_A },
4357 { "dsp_b", SND_SOC_DAIFMT_DSP_B },
4358 { "ac97", SND_SOC_DAIFMT_AC97 },
4359 { "pdm", SND_SOC_DAIFMT_PDM},
4360 { "msb", SND_SOC_DAIFMT_MSB },
4361 { "lsb", SND_SOC_DAIFMT_LSB },
a7930ed4
KM		 4362 };
4363
4364 if (!prefix)
4365 prefix = "";
4366
4367 /*
4368 * check "[prefix]format = xxx"
4369 * SND_SOC_DAIFMT_FORMAT_MASK area
4370 */
4371 snprintf(prop, sizeof(prop), "%sformat", prefix);
4372 ret = of_property_read_string(np, prop, &str);
4373 if (ret == 0) {
4374 for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) {
4375 if (strcmp(str, of_fmt_table[i].name) == 0) {
4376 format |= of_fmt_table[i].val;
4377 break;
4378 }
4379 }
4380 }
4381
4382 /*
8c2d6a9f 4383 * check "[prefix]continuous-clock"
a7930ed4
KM		 4384 * SND_SOC_DAIFMT_CLOCK_MASK area
4385 */
8c2d6a9f
KM		 4386 snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix);
4387 if (of_get_property(np, prop, NULL))
4388 format |= SND_SOC_DAIFMT_CONT;
4389 else
4390 format |= SND_SOC_DAIFMT_GATED;
a7930ed4
KM		 4391
4392 /*
4393 * check "[prefix]bitclock-inversion"
4394 * check "[prefix]frame-inversion"
4395 * SND_SOC_DAIFMT_INV_MASK area
4396 */
4397 snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix);
4398 bit = !!of_get_property(np, prop, NULL);
4399
4400 snprintf(prop, sizeof(prop), "%sframe-inversion", prefix);
4401 frame = !!of_get_property(np, prop, NULL);
4402
4403 switch ((bit << 4) + frame) {
4404 case 0x11:
4405 format |= SND_SOC_DAIFMT_IB_IF;
4406 break;
4407 case 0x10:
4408 format |= SND_SOC_DAIFMT_IB_NF;
4409 break;
4410 case 0x01:
4411 format |= SND_SOC_DAIFMT_NB_IF;
4412 break;
4413 default:
4414 /* SND_SOC_DAIFMT_NB_NF is default */
4415 break;
4416 }
4417
4418 /*
4419 * check "[prefix]bitclock-master"
4420 * check "[prefix]frame-master"
4421 * SND_SOC_DAIFMT_MASTER_MASK area
4422 */
4423 snprintf(prop, sizeof(prop), "%sbitclock-master", prefix);
4424 bit = !!of_get_property(np, prop, NULL);
4425
4426 snprintf(prop, sizeof(prop), "%sframe-master", prefix);
4427 frame = !!of_get_property(np, prop, NULL);
4428
4429 switch ((bit << 4) + frame) {
4430 case 0x11:
4431 format |= SND_SOC_DAIFMT_CBM_CFM;
4432 break;
4433 case 0x10:
4434 format |= SND_SOC_DAIFMT_CBM_CFS;
4435 break;
4436 case 0x01:
4437 format |= SND_SOC_DAIFMT_CBS_CFM;
4438 break;
4439 default:
4440 format |= SND_SOC_DAIFMT_CBS_CFS;
4441 break;
4442 }
4443
4444 return format;
4445}
4446EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
4447
c9b3a40f 4448static int __init snd_soc_init(void)
db2a4165 4449{
384c89e2 4450#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 4451 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
4452 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
0837fc62 4453 pr_warn("ASoC: Failed to create debugfs directory\n");
8a9dab1a 4454 snd_soc_debugfs_root = NULL;
384c89e2 4455 }
c3c5a19a 4456
8a9dab1a 4457 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
c3c5a19a
MB		 4458 &codec_list_fops))
4459 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4460
8a9dab1a 4461 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
f3208780
MB		 4462 &dai_list_fops))
4463 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
19c7ac27 4464
8a9dab1a 4465 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
19c7ac27
MB		 4466 &platform_list_fops))
4467 pr_warn("ASoC: Failed to create platform list debugfs file\n");
384c89e2
MB		 4468#endif
4469
fb257897
MB		 4470 snd_soc_util_init();
4471
db2a4165
FM		 4472 return platform_driver_register(&soc_driver);
4473}
4abe8e16 4474module_init(snd_soc_init);
db2a4165 4475
7d8c16a6 4476static void __exit snd_soc_exit(void)
db2a4165 4477{
fb257897
MB		 4478 snd_soc_util_exit();
4479
384c89e2 4480#ifdef CONFIG_DEBUG_FS
8a9dab1a 4481 debugfs_remove_recursive(snd_soc_debugfs_root);
384c89e2 4482#endif
3ff3f64b 4483 platform_driver_unregister(&soc_driver);
db2a4165 4484}
db2a4165
FM		 4485module_exit(snd_soc_exit);
4486
4487/* Module information */
d331124d 4488MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
db2a4165
FM		 4489MODULE_DESCRIPTION("ALSA SoC Core");
4490MODULE_LICENSE("GPL");
8b45a209 4491MODULE_ALIAS("platform:soc-audio");
Linux 6.x block layer and io_uring tree(s)