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Linux 3.17-rc1
[linux-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>
741a509f 33#include <linux/pinctrl/consumer.h>
f0e8ed85 34#include <linux/ctype.h>
5a0e3ad6 35#include <linux/slab.h>
bec4fa05 36#include <linux/of.h>
741a509f
MP		 37#include <linux/gpio.h>
38#include <linux/of_gpio.h>
474828a4 39#include <sound/ac97_codec.h>
db2a4165 40#include <sound/core.h>
3028eb8c 41#include <sound/jack.h>
db2a4165
FM		 42#include <sound/pcm.h>
43#include <sound/pcm_params.h>
44#include <sound/soc.h>
01d7584c 45#include <sound/soc-dpcm.h>
db2a4165
FM		 46#include <sound/initval.h>
47
a8b1d34f
MB		 48#define CREATE_TRACE_POINTS
49#include <trace/events/asoc.h>
50
f0fba2ad
LG		 51#define NAME_SIZE 32
52
384c89e2 53#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 54struct dentry *snd_soc_debugfs_root;
55EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
384c89e2
MB		 56#endif
57
c5af3a2e 58static DEFINE_MUTEX(client_mutex);
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
741a509f
MP		 72struct snd_ac97_reset_cfg {
73 struct pinctrl *pctl;
74 struct pinctrl_state *pstate_reset;
75 struct pinctrl_state *pstate_warm_reset;
76 struct pinctrl_state *pstate_run;
77 int gpio_sdata;
78 int gpio_sync;
79 int gpio_reset;
80};
81
2bc9a81e
DP		 82/* returns the minimum number of bytes needed to represent
83 * a particular given value */
84static int min_bytes_needed(unsigned long val)
85{
86 int c = 0;
87 int i;
88
89 for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c)
90 if (val & (1UL << i))
91 break;
92 c = (sizeof val * 8) - c;
93 if (!c || (c % 8))
94 c = (c + 8) / 8;
95 else
96 c /= 8;
97 return c;
98}
99
13fd179f
DP		 100/* fill buf which is 'len' bytes with a formatted
101 * string of the form 'reg: value\n' */
102static int format_register_str(struct snd_soc_codec *codec,
103 unsigned int reg, char *buf, size_t len)
104{
00b317a4
SW		 105 int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
106 int regsize = codec->driver->reg_word_size * 2;
13fd179f
DP		 107 int ret;
108 char tmpbuf[len + 1];
109 char regbuf[regsize + 1];
110
111 /* since tmpbuf is allocated on the stack, warn the callers if they
112 * try to abuse this function */
113 WARN_ON(len > 63);
114
115 /* +2 for ': ' and + 1 for '\n' */
116 if (wordsize + regsize + 2 + 1 != len)
117 return -EINVAL;
118
25032c11 119 ret = snd_soc_read(codec, reg);
13fd179f
DP		 120 if (ret < 0) {
121 memset(regbuf, 'X', regsize);
122 regbuf[regsize] = '\0';
123 } else {
124 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
125 }
126
127 /* prepare the buffer */
128 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
129 /* copy it back to the caller without the '\0' */
130 memcpy(buf, tmpbuf, len);
131
132 return 0;
133}
134
2624d5fa 135/* codec register dump */
13fd179f
DP		 136static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
137 size_t count, loff_t pos)
2624d5fa 138{
13fd179f 139 int i, step = 1;
2bc9a81e 140 int wordsize, regsize;
13fd179f
DP		 141 int len;
142 size_t total = 0;
143 loff_t p = 0;
2bc9a81e 144
00b317a4
SW		 145 wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
146 regsize = codec->driver->reg_word_size * 2;
2624d5fa 147
13fd179f
DP		 148 len = wordsize + regsize + 2 + 1;
149
f0fba2ad 150 if (!codec->driver->reg_cache_size)
2624d5fa
MB		 151 return 0;
152
f0fba2ad
LG		 153 if (codec->driver->reg_cache_step)
154 step = codec->driver->reg_cache_step;
2624d5fa 155
f0fba2ad 156 for (i = 0; i < codec->driver->reg_cache_size; i += step) {
20a0ec27
LPC		 157 /* only support larger than PAGE_SIZE bytes debugfs
158 * entries for the default case */
159 if (p >= pos) {
160 if (total + len >= count - 1)
161 break;
162 format_register_str(codec, i, buf + total, len);
163 total += len;
5164d74d 164 }
20a0ec27 165 p += len;
2624d5fa
MB		 166 }
167
13fd179f 168 total = min(total, count - 1);
2624d5fa 169
13fd179f 170 return total;
2624d5fa 171}
13fd179f 172
2624d5fa
MB		 173static ssize_t codec_reg_show(struct device *dev,
174 struct device_attribute *attr, char *buf)
175{
36ae1a96 176 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
f0fba2ad 177
13fd179f 178 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
2624d5fa
MB		 179}
180
181static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
182
dbe21408
MB		 183static ssize_t pmdown_time_show(struct device *dev,
184 struct device_attribute *attr, char *buf)
185{
36ae1a96 186 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
dbe21408 187
f0fba2ad 188 return sprintf(buf, "%ld\n", rtd->pmdown_time);
dbe21408
MB		 189}
190
191static ssize_t pmdown_time_set(struct device *dev,
192 struct device_attribute *attr,
193 const char *buf, size_t count)
194{
36ae1a96 195 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
c593b520 196 int ret;
dbe21408 197
b785a492 198 ret = kstrtol(buf, 10, &rtd->pmdown_time);
c593b520
MB		 199 if (ret)
200 return ret;
dbe21408
MB		 201
202 return count;
203}
204
205static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
206
2624d5fa 207#ifdef CONFIG_DEBUG_FS
2624d5fa 208static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
13fd179f 209 size_t count, loff_t *ppos)
2624d5fa
MB		 210{
211 ssize_t ret;
212 struct snd_soc_codec *codec = file->private_data;
13fd179f
DP		 213 char *buf;
214
215 if (*ppos < 0 || !count)
216 return -EINVAL;
217
218 buf = kmalloc(count, GFP_KERNEL);
2624d5fa
MB		 219 if (!buf)
220 return -ENOMEM;
13fd179f
DP		 221
222 ret = soc_codec_reg_show(codec, buf, count, *ppos);
223 if (ret >= 0) {
224 if (copy_to_user(user_buf, buf, ret)) {
225 kfree(buf);
226 return -EFAULT;
227 }
228 *ppos += ret;
229 }
230
2624d5fa
MB		 231 kfree(buf);
232 return ret;
233}
234
235static ssize_t codec_reg_write_file(struct file *file,
236 const char __user *user_buf, size_t count, loff_t *ppos)
237{
238 char buf[32];
34e268d8 239 size_t buf_size;
2624d5fa
MB		 240 char *start = buf;
241 unsigned long reg, value;
2624d5fa 242 struct snd_soc_codec *codec = file->private_data;
b785a492 243 int ret;
2624d5fa
MB		 244
245 buf_size = min(count, (sizeof(buf)-1));
246 if (copy_from_user(buf, user_buf, buf_size))
247 return -EFAULT;
248 buf[buf_size] = 0;
2624d5fa
MB		 249
250 while (*start == ' ')
251 start++;
252 reg = simple_strtoul(start, &start, 16);
2624d5fa
MB		 253 while (*start == ' ')
254 start++;
b785a492
JH		 255 ret = kstrtoul(start, 16, &value);
256 if (ret)
257 return ret;
0d51a9cb
MB		 258
259 /* Userspace has been fiddling around behind the kernel's back */
373d4d09 260 add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE);
0d51a9cb 261
e4f078d8 262 snd_soc_write(codec, reg, value);
2624d5fa
MB		 263 return buf_size;
264}
265
266static const struct file_operations codec_reg_fops = {
234e3405 267 .open = simple_open,
2624d5fa
MB		 268 .read = codec_reg_read_file,
269 .write = codec_reg_write_file,
6038f373 270 .llseek = default_llseek,
2624d5fa
MB		 271};
272
e73f3de5
RK		 273static struct dentry *soc_debugfs_create_dir(struct dentry *parent,
274 const char *fmt, ...)
275{
276 struct dentry *de;
277 va_list ap;
278 char *s;
279
280 va_start(ap, fmt);
281 s = kvasprintf(GFP_KERNEL, fmt, ap);
282 va_end(ap);
283
284 if (!s)
285 return NULL;
286
287 de = debugfs_create_dir(s, parent);
288 kfree(s);
289
290 return de;
291}
292
2624d5fa
MB		 293static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
294{
00200107 295 struct dentry *debugfs_card_root = codec->component.card->debugfs_card_root;
d6ce4cf3 296
e73f3de5 297 codec->debugfs_codec_root = soc_debugfs_create_dir(debugfs_card_root,
211bcc6c
MB		 298 "codec:%s",
299 codec->component.name);
2624d5fa 300 if (!codec->debugfs_codec_root) {
10e8aa9a
MM		 301 dev_warn(codec->dev,
302 "ASoC: Failed to create codec debugfs directory\n");
2624d5fa
MB		 303 return;
304 }
305
aaee8ef1
MB		 306 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
307 &codec->cache_sync);
308 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
309 &codec->cache_only);
310
2624d5fa
MB		 311 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
312 codec->debugfs_codec_root,
313 codec, &codec_reg_fops);
314 if (!codec->debugfs_reg)
10e8aa9a
MM		 315 dev_warn(codec->dev,
316 "ASoC: Failed to create codec register debugfs file\n");
2624d5fa 317
8eecaf62 318 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
2624d5fa
MB		 319}
320
321static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
322{
323 debugfs_remove_recursive(codec->debugfs_codec_root);
324}
325
731f1ab2
SG		 326static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
327{
00200107 328 struct dentry *debugfs_card_root = platform->component.card->debugfs_card_root;
731f1ab2 329
e73f3de5 330 platform->debugfs_platform_root = soc_debugfs_create_dir(debugfs_card_root,
211bcc6c
MB		 331 "platform:%s",
332 platform->component.name);
731f1ab2
SG		 333 if (!platform->debugfs_platform_root) {
334 dev_warn(platform->dev,
f110bfc7 335 "ASoC: Failed to create platform debugfs directory\n");
731f1ab2
SG		 336 return;
337 }
338
bc9af9fa 339 snd_soc_dapm_debugfs_init(&platform->component.dapm,
731f1ab2
SG		 340 platform->debugfs_platform_root);
341}
342
343static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
344{
345 debugfs_remove_recursive(platform->debugfs_platform_root);
346}
347
c3c5a19a
MB		 348static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
349 size_t count, loff_t *ppos)
350{
351 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 352 ssize_t len, ret = 0;
c3c5a19a
MB		 353 struct snd_soc_codec *codec;
354
355 if (!buf)
356 return -ENOMEM;
357
2b194f9d
MB		 358 list_for_each_entry(codec, &codec_list, list) {
359 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
f4333203 360 codec->component.name);
2b194f9d
MB		 361 if (len >= 0)
362 ret += len;
363 if (ret > PAGE_SIZE) {
364 ret = PAGE_SIZE;
365 break;
366 }
367 }
c3c5a19a
MB		 368
369 if (ret >= 0)
370 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
371
372 kfree(buf);
373
374 return ret;
375}
376
377static const struct file_operations codec_list_fops = {
378 .read = codec_list_read_file,
379 .llseek = default_llseek,/* read accesses f_pos */
380};
381
f3208780
MB		 382static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
383 size_t count, loff_t *ppos)
384{
385 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 386 ssize_t len, ret = 0;
1438c2f6 387 struct snd_soc_component *component;
f3208780
MB		 388 struct snd_soc_dai *dai;
389
390 if (!buf)
391 return -ENOMEM;
392
1438c2f6
LPC		 393 list_for_each_entry(component, &component_list, list) {
394 list_for_each_entry(dai, &component->dai_list, list) {
395 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
396 dai->name);
397 if (len >= 0)
398 ret += len;
399 if (ret > PAGE_SIZE) {
400 ret = PAGE_SIZE;
401 break;
402 }
2b194f9d
MB		 403 }
404 }
f3208780 405
2b194f9d 406 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
f3208780
MB		 407
408 kfree(buf);
409
410 return ret;
411}
412
413static const struct file_operations dai_list_fops = {
414 .read = dai_list_read_file,
415 .llseek = default_llseek,/* read accesses f_pos */
416};
417
19c7ac27
MB		 418static ssize_t platform_list_read_file(struct file *file,
419 char __user *user_buf,
420 size_t count, loff_t *ppos)
421{
422 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 423 ssize_t len, ret = 0;
19c7ac27
MB		 424 struct snd_soc_platform *platform;
425
426 if (!buf)
427 return -ENOMEM;
428
2b194f9d
MB		 429 list_for_each_entry(platform, &platform_list, list) {
430 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
f4333203 431 platform->component.name);
2b194f9d
MB		 432 if (len >= 0)
433 ret += len;
434 if (ret > PAGE_SIZE) {
435 ret = PAGE_SIZE;
436 break;
437 }
438 }
19c7ac27 439
2b194f9d 440 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
19c7ac27
MB		 441
442 kfree(buf);
443
444 return ret;
445}
446
447static const struct file_operations platform_list_fops = {
448 .read = platform_list_read_file,
449 .llseek = default_llseek,/* read accesses f_pos */
450};
451
a6052154
JN		 452static void soc_init_card_debugfs(struct snd_soc_card *card)
453{
454 card->debugfs_card_root = debugfs_create_dir(card->name,
8a9dab1a 455 snd_soc_debugfs_root);
3a45b867 456 if (!card->debugfs_card_root) {
a6052154 457 dev_warn(card->dev,
7c08be84 458 "ASoC: Failed to create card debugfs directory\n");
3a45b867
JN		 459 return;
460 }
461
462 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
463 card->debugfs_card_root,
464 &card->pop_time);
465 if (!card->debugfs_pop_time)
466 dev_warn(card->dev,
f110bfc7 467 "ASoC: Failed to create pop time debugfs file\n");
a6052154
JN		 468}
469
470static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
471{
472 debugfs_remove_recursive(card->debugfs_card_root);
473}
474
2624d5fa
MB		 475#else
476
477static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
478{
479}
480
481static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
482{
483}
b95fccbc 484
731f1ab2
SG		 485static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
486{
487}
488
489static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
490{
491}
492
b95fccbc
AL		 493static inline void soc_init_card_debugfs(struct snd_soc_card *card)
494{
495}
496
497static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
498{
499}
2624d5fa
MB		 500#endif
501
47c88fff
LG		 502struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
503 const char *dai_link, int stream)
504{
505 int i;
506
507 for (i = 0; i < card->num_links; i++) {
508 if (card->rtd[i].dai_link->no_pcm &&
509 !strcmp(card->rtd[i].dai_link->name, dai_link))
510 return card->rtd[i].pcm->streams[stream].substream;
511 }
f110bfc7 512 dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link);
47c88fff
LG		 513 return NULL;
514}
515EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
516
517struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
518 const char *dai_link)
519{
520 int i;
521
522 for (i = 0; i < card->num_links; i++) {
523 if (!strcmp(card->rtd[i].dai_link->name, dai_link))
524 return &card->rtd[i];
525 }
f110bfc7 526 dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link);
47c88fff
LG		 527 return NULL;
528}
529EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime);
530
db2a4165
FM		 531#ifdef CONFIG_SND_SOC_AC97_BUS
532/* unregister ac97 codec */
533static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
534{
535 if (codec->ac97->dev.bus)
536 device_unregister(&codec->ac97->dev);
537 return 0;
538}
539
540/* stop no dev release warning */
541static void soc_ac97_device_release(struct device *dev){}
542
543/* register ac97 codec to bus */
544static int soc_ac97_dev_register(struct snd_soc_codec *codec)
545{
546 int err;
547
548 codec->ac97->dev.bus = &ac97_bus_type;
00200107 549 codec->ac97->dev.parent = codec->component.card->dev;
db2a4165
FM		 550 codec->ac97->dev.release = soc_ac97_device_release;
551
bb072bf0 552 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
00200107
LPC		 553 codec->component.card->snd_card->number, 0,
554 codec->component.name);
db2a4165
FM		 555 err = device_register(&codec->ac97->dev);
556 if (err < 0) {
f110bfc7 557 dev_err(codec->dev, "ASoC: Can't register ac97 bus\n");
db2a4165
FM		 558 codec->ac97->dev.bus = NULL;
559 return err;
560 }
561 return 0;
562}
563#endif
564
9d58a077
RF		 565static void codec2codec_close_delayed_work(struct work_struct *work)
566{
567 /* Currently nothing to do for c2c links
568 * Since c2c links are internal nodes in the DAPM graph and
569 * don't interface with the outside world or application layer
570 * we don't have to do any special handling on close.
571 */
572}
573
6f8ab4ac 574#ifdef CONFIG_PM_SLEEP
db2a4165 575/* powers down audio subsystem for suspend */
6f8ab4ac 576int snd_soc_suspend(struct device *dev)
db2a4165 577{
6f8ab4ac 578 struct snd_soc_card *card = dev_get_drvdata(dev);
2eea392d 579 struct snd_soc_codec *codec;
88bd870f 580 int i, j;
db2a4165 581
e3509ff0
DM		 582 /* If the initialization of this soc device failed, there is no codec
583 * associated with it. Just bail out in this case.
584 */
f0fba2ad 585 if (list_empty(&card->codec_dev_list))
e3509ff0
DM		 586 return 0;
587
6ed25978
AG		 588 /* Due to the resume being scheduled into a workqueue we could
589 * suspend before that's finished - wait for it to complete.
590 */
f0fba2ad
LG		 591 snd_power_lock(card->snd_card);
592 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
593 snd_power_unlock(card->snd_card);
6ed25978
AG		 594
595 /* we're going to block userspace touching us until resume completes */
f0fba2ad 596 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
6ed25978 597
a00f90f9 598 /* mute any active DACs */
f0fba2ad 599 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 600
f0fba2ad 601 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 602 continue;
603
88bd870f
BC		 604 for (j = 0; j < card->rtd[i].num_codecs; j++) {
605 struct snd_soc_dai *dai = card->rtd[i].codec_dais[j];
606 struct snd_soc_dai_driver *drv = dai->driver;
607
608 if (drv->ops->digital_mute && dai->playback_active)
609 drv->ops->digital_mute(dai, 1);
610 }
db2a4165
FM		 611 }
612
4ccab3e7 613 /* suspend all pcms */
f0fba2ad
LG		 614 for (i = 0; i < card->num_rtd; i++) {
615 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 616 continue;
617
f0fba2ad 618 snd_pcm_suspend_all(card->rtd[i].pcm);
3efab7dc 619 }
4ccab3e7 620
87506549 621 if (card->suspend_pre)
70b2ac12 622 card->suspend_pre(card);
db2a4165 623
f0fba2ad
LG		 624 for (i = 0; i < card->num_rtd; i++) {
625 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
626 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 627
f0fba2ad 628 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 629 continue;
630
f0fba2ad
LG		 631 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
632 cpu_dai->driver->suspend(cpu_dai);
633 if (platform->driver->suspend && !platform->suspended) {
634 platform->driver->suspend(cpu_dai);
635 platform->suspended = 1;
636 }
db2a4165
FM		 637 }
638
639 /* close any waiting streams and save state */
f0fba2ad 640 for (i = 0; i < card->num_rtd; i++) {
88bd870f 641 struct snd_soc_dai **codec_dais = card->rtd[i].codec_dais;
43829731 642 flush_delayed_work(&card->rtd[i].delayed_work);
88bd870f
BC		 643 for (j = 0; j < card->rtd[i].num_codecs; j++) {
644 codec_dais[j]->codec->dapm.suspend_bias_level =
645 codec_dais[j]->codec->dapm.bias_level;
646 }
f0fba2ad 647 }
db2a4165 648
f0fba2ad 649 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 650
f0fba2ad 651 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 652 continue;
653
7bd3a6f3
MB		 654 snd_soc_dapm_stream_event(&card->rtd[i],
655 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 656 SND_SOC_DAPM_STREAM_SUSPEND);
f0fba2ad 657
7bd3a6f3
MB		 658 snd_soc_dapm_stream_event(&card->rtd[i],
659 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 660 SND_SOC_DAPM_STREAM_SUSPEND);
db2a4165
FM		 661 }
662
e2d32ff6
MB		 663 /* Recheck all analogue paths too */
664 dapm_mark_io_dirty(&card->dapm);
665 snd_soc_dapm_sync(&card->dapm);
666
f0fba2ad 667 /* suspend all CODECs */
2eea392d 668 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 669 /* If there are paths active then the CODEC will be held with
670 * bias _ON and should not be suspended. */
671 if (!codec->suspended && codec->driver->suspend) {
ce6120cc 672 switch (codec->dapm.bias_level) {
f0fba2ad 673 case SND_SOC_BIAS_STANDBY:
125a25da
MB		 674 /*
675 * If the CODEC is capable of idle
676 * bias off then being in STANDBY
677 * means it's doing something,
678 * otherwise fall through.
679 */
680 if (codec->dapm.idle_bias_off) {
681 dev_dbg(codec->dev,
10e8aa9a 682 "ASoC: idle_bias_off CODEC on over suspend\n");
125a25da
MB		 683 break;
684 }
f0fba2ad 685 case SND_SOC_BIAS_OFF:
84b315ee 686 codec->driver->suspend(codec);
f0fba2ad 687 codec->suspended = 1;
7be4ba24 688 codec->cache_sync = 1;
e2c330b9
LPC		 689 if (codec->component.regmap)
690 regcache_mark_dirty(codec->component.regmap);
988e8cc4
NC		 691 /* deactivate pins to sleep state */
692 pinctrl_pm_select_sleep_state(codec->dev);
f0fba2ad
LG		 693 break;
694 default:
10e8aa9a
MM		 695 dev_dbg(codec->dev,
696 "ASoC: CODEC is on over suspend\n");
f0fba2ad
LG		 697 break;
698 }
1547aba9
MB		 699 }
700 }
db2a4165 701
f0fba2ad
LG		 702 for (i = 0; i < card->num_rtd; i++) {
703 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 704
f0fba2ad 705 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 706 continue;
707
f0fba2ad
LG		 708 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
709 cpu_dai->driver->suspend(cpu_dai);
988e8cc4
NC		 710
711 /* deactivate pins to sleep state */
712 pinctrl_pm_select_sleep_state(cpu_dai->dev);
db2a4165
FM		 713 }
714
87506549 715 if (card->suspend_post)
70b2ac12 716 card->suspend_post(card);
db2a4165
FM		 717
718 return 0;
719}
6f8ab4ac 720EXPORT_SYMBOL_GPL(snd_soc_suspend);
db2a4165 721
6ed25978
AG		 722/* deferred resume work, so resume can complete before we finished
723 * setting our codec back up, which can be very slow on I2C
724 */
725static void soc_resume_deferred(struct work_struct *work)
db2a4165 726{
f0fba2ad
LG		 727 struct snd_soc_card *card =
728 container_of(work, struct snd_soc_card, deferred_resume_work);
2eea392d 729 struct snd_soc_codec *codec;
88bd870f 730 int i, j;
db2a4165 731
6ed25978
AG		 732 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
733 * so userspace apps are blocked from touching us
734 */
735
f110bfc7 736 dev_dbg(card->dev, "ASoC: starting resume work\n");
6ed25978 737
9949788b 738 /* Bring us up into D2 so that DAPM starts enabling things */
f0fba2ad 739 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
9949788b 740
87506549 741 if (card->resume_pre)
70b2ac12 742 card->resume_pre(card);
db2a4165 743
f0fba2ad
LG		 744 /* resume AC97 DAIs */
745 for (i = 0; i < card->num_rtd; i++) {
746 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 747
f0fba2ad 748 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 749 continue;
750
f0fba2ad
LG		 751 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
752 cpu_dai->driver->resume(cpu_dai);
753 }
754
2eea392d 755 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 756 /* If the CODEC was idle over suspend then it will have been
757 * left with bias OFF or STANDBY and suspended so we must now
758 * resume. Otherwise the suspend was suppressed.
759 */
760 if (codec->driver->resume && codec->suspended) {
ce6120cc 761 switch (codec->dapm.bias_level) {
f0fba2ad
LG		 762 case SND_SOC_BIAS_STANDBY:
763 case SND_SOC_BIAS_OFF:
764 codec->driver->resume(codec);
765 codec->suspended = 0;
766 break;
767 default:
10e8aa9a
MM		 768 dev_dbg(codec->dev,
769 "ASoC: CODEC was on over suspend\n");
f0fba2ad
LG		 770 break;
771 }
1547aba9
MB		 772 }
773 }
db2a4165 774
f0fba2ad 775 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 776
f0fba2ad 777 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 778 continue;
779
7bd3a6f3 780 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 781 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 782 SND_SOC_DAPM_STREAM_RESUME);
f0fba2ad 783
7bd3a6f3 784 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 785 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 786 SND_SOC_DAPM_STREAM_RESUME);
db2a4165
FM		 787 }
788
3ff3f64b 789 /* unmute any active DACs */
f0fba2ad 790 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 791
f0fba2ad 792 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 793 continue;
794
88bd870f
BC		 795 for (j = 0; j < card->rtd[i].num_codecs; j++) {
796 struct snd_soc_dai *dai = card->rtd[i].codec_dais[j];
797 struct snd_soc_dai_driver *drv = dai->driver;
798
799 if (drv->ops->digital_mute && dai->playback_active)
800 drv->ops->digital_mute(dai, 0);
801 }
db2a4165
FM		 802 }
803
f0fba2ad
LG		 804 for (i = 0; i < card->num_rtd; i++) {
805 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
806 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 807
f0fba2ad 808 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 809 continue;
810
f0fba2ad
LG		 811 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
812 cpu_dai->driver->resume(cpu_dai);
813 if (platform->driver->resume && platform->suspended) {
814 platform->driver->resume(cpu_dai);
815 platform->suspended = 0;
816 }
db2a4165
FM		 817 }
818
87506549 819 if (card->resume_post)
70b2ac12 820 card->resume_post(card);
db2a4165 821
f110bfc7 822 dev_dbg(card->dev, "ASoC: resume work completed\n");
6ed25978
AG		 823
824 /* userspace can access us now we are back as we were before */
f0fba2ad 825 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
e2d32ff6
MB		 826
827 /* Recheck all analogue paths too */
828 dapm_mark_io_dirty(&card->dapm);
829 snd_soc_dapm_sync(&card->dapm);
6ed25978
AG		 830}
831
832/* powers up audio subsystem after a suspend */
6f8ab4ac 833int snd_soc_resume(struct device *dev)
6ed25978 834{
6f8ab4ac 835 struct snd_soc_card *card = dev_get_drvdata(dev);
82e14e8b 836 int i, ac97_control = 0;
b9dd94a8 837
5ff1ddf2
EM		 838 /* If the initialization of this soc device failed, there is no codec
839 * associated with it. Just bail out in this case.
840 */
841 if (list_empty(&card->codec_dev_list))
842 return 0;
843
988e8cc4
NC		 844 /* activate pins from sleep state */
845 for (i = 0; i < card->num_rtd; i++) {
88bd870f
BC		 846 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
847 struct snd_soc_dai **codec_dais = rtd->codec_dais;
848 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
849 int j;
850
988e8cc4
NC		 851 if (cpu_dai->active)
852 pinctrl_pm_select_default_state(cpu_dai->dev);
88bd870f
BC		 853
854 for (j = 0; j < rtd->num_codecs; j++) {
855 struct snd_soc_dai *codec_dai = codec_dais[j];
856 if (codec_dai->active)
857 pinctrl_pm_select_default_state(codec_dai->dev);
858 }
988e8cc4
NC		 859 }
860
64ab9baa
MB		 861 /* AC97 devices might have other drivers hanging off them so
862 * need to resume immediately. Other drivers don't have that
863 * problem and may take a substantial amount of time to resume
864 * due to I/O costs and anti-pop so handle them out of line.
865 */
f0fba2ad
LG		 866 for (i = 0; i < card->num_rtd; i++) {
867 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
82e14e8b
SW		 868 ac97_control |= cpu_dai->driver->ac97_control;
869 }
870 if (ac97_control) {
f110bfc7 871 dev_dbg(dev, "ASoC: Resuming AC97 immediately\n");
82e14e8b
SW		 872 soc_resume_deferred(&card->deferred_resume_work);
873 } else {
f110bfc7 874 dev_dbg(dev, "ASoC: Scheduling resume work\n");
82e14e8b 875 if (!schedule_work(&card->deferred_resume_work))
f110bfc7 876 dev_err(dev, "ASoC: resume work item may be lost\n");
64ab9baa 877 }
6ed25978 878
db2a4165
FM		 879 return 0;
880}
6f8ab4ac 881EXPORT_SYMBOL_GPL(snd_soc_resume);
db2a4165 882#else
6f8ab4ac
MB		 883#define snd_soc_suspend NULL
884#define snd_soc_resume NULL
db2a4165
FM		 885#endif
886
85e7652d 887static const struct snd_soc_dai_ops null_dai_ops = {
02a06d30
BS		 888};
889
88bd870f
BC		 890static struct snd_soc_codec *soc_find_codec(
891 const struct device_node *codec_of_node,
892 const char *codec_name)
12023a9a
MLC		 893{
894 struct snd_soc_codec *codec;
895
896 list_for_each_entry(codec, &codec_list, list) {
897 if (codec_of_node) {
898 if (codec->dev->of_node != codec_of_node)
899 continue;
900 } else {
f4333203 901 if (strcmp(codec->component.name, codec_name))
12023a9a
MLC		 902 continue;
903 }
904
905 return codec;
906 }
907
908 return NULL;
909}
910
911static struct snd_soc_dai *soc_find_codec_dai(struct snd_soc_codec *codec,
912 const char *codec_dai_name)
913{
914 struct snd_soc_dai *codec_dai;
915
916 list_for_each_entry(codec_dai, &codec->component.dai_list, list) {
917 if (!strcmp(codec_dai->name, codec_dai_name)) {
918 return codec_dai;
919 }
920 }
921
922 return NULL;
923}
924
f0fba2ad 925static int soc_bind_dai_link(struct snd_soc_card *card, int num)
db2a4165 926{
f0fba2ad
LG		 927 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
928 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1438c2f6 929 struct snd_soc_component *component;
88bd870f
BC		 930 struct snd_soc_dai_link_component *codecs = dai_link->codecs;
931 struct snd_soc_dai **codec_dais = rtd->codec_dais;
435c5e25 932 struct snd_soc_platform *platform;
12023a9a 933 struct snd_soc_dai *cpu_dai;
848dd8be 934 const char *platform_name;
88bd870f 935 int i;
435c5e25 936
f110bfc7 937 dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
435c5e25 938
b19e6e7b 939 /* Find CPU DAI from registered DAIs*/
1438c2f6 940 list_for_each_entry(component, &component_list, list) {
bc92657a 941 if (dai_link->cpu_of_node &&
1438c2f6 942 component->dev->of_node != dai_link->cpu_of_node)
bc92657a
SW		 943 continue;
944 if (dai_link->cpu_name &&
1438c2f6 945 strcmp(dev_name(component->dev), dai_link->cpu_name))
bc92657a 946 continue;
1438c2f6
LPC		 947 list_for_each_entry(cpu_dai, &component->dai_list, list) {
948 if (dai_link->cpu_dai_name &&
949 strcmp(cpu_dai->name, dai_link->cpu_dai_name))
950 continue;
2610ab77 951
1438c2f6
LPC		 952 rtd->cpu_dai = cpu_dai;
953 }
435c5e25 954 }
6308419a 955
b19e6e7b 956 if (!rtd->cpu_dai) {
f110bfc7 957 dev_err(card->dev, "ASoC: CPU DAI %s not registered\n",
b19e6e7b
MB		 958 dai_link->cpu_dai_name);
959 return -EPROBE_DEFER;
f0fba2ad
LG		 960 }
961
88bd870f 962 rtd->num_codecs = dai_link->num_codecs;
848dd8be 963
88bd870f
BC		 964 /* Find CODEC from registered CODECs */
965 for (i = 0; i < rtd->num_codecs; i++) {
966 struct snd_soc_codec *codec;
967 codec = soc_find_codec(codecs[i].of_node, codecs[i].name);
968 if (!codec) {
969 dev_err(card->dev, "ASoC: CODEC %s not registered\n",
970 codecs[i].name);
971 return -EPROBE_DEFER;
972 }
973
974 codec_dais[i] = soc_find_codec_dai(codec, codecs[i].dai_name);
975 if (!codec_dais[i]) {
976 dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
977 codecs[i].dai_name);
978 return -EPROBE_DEFER;
979 }
12023a9a
MLC		 980 }
981
88bd870f
BC		 982 /* Single codec links expect codec and codec_dai in runtime data */
983 rtd->codec_dai = codec_dais[0];
984 rtd->codec = rtd->codec_dai->codec;
985
848dd8be
MB		 986 /* if there's no platform we match on the empty platform */
987 platform_name = dai_link->platform_name;
5a504963 988 if (!platform_name && !dai_link->platform_of_node)
848dd8be
MB		 989 platform_name = "snd-soc-dummy";
990
b19e6e7b 991 /* find one from the set of registered platforms */
f0fba2ad 992 list_for_each_entry(platform, &platform_list, list) {
5a504963
SW		 993 if (dai_link->platform_of_node) {
994 if (platform->dev->of_node !=
995 dai_link->platform_of_node)
996 continue;
997 } else {
f4333203 998 if (strcmp(platform->component.name, platform_name))
5a504963
SW		 999 continue;
1000 }
2610ab77
SW		 1001
1002 rtd->platform = platform;
02a06d30 1003 }
b19e6e7b 1004 if (!rtd->platform) {
f110bfc7 1005 dev_err(card->dev, "ASoC: platform %s not registered\n",
f0fba2ad 1006 dai_link->platform_name);
b19e6e7b 1007 return -EPROBE_DEFER;
f0fba2ad 1008 }
b19e6e7b
MB		 1009
1010 card->num_rtd++;
1011
1012 return 0;
f0fba2ad
LG		 1013}
1014
d12cd198
SW		 1015static int soc_remove_platform(struct snd_soc_platform *platform)
1016{
1017 int ret;
1018
1019 if (platform->driver->remove) {
1020 ret = platform->driver->remove(platform);
1021 if (ret < 0)
f110bfc7
LG		 1022 dev_err(platform->dev, "ASoC: failed to remove %d\n",
1023 ret);
d12cd198
SW		 1024 }
1025
1026 /* Make sure all DAPM widgets are freed */
bc9af9fa 1027 snd_soc_dapm_free(&platform->component.dapm);
d12cd198
SW		 1028
1029 soc_cleanup_platform_debugfs(platform);
1030 platform->probed = 0;
d12cd198
SW		 1031 module_put(platform->dev->driver->owner);
1032
1033 return 0;
1034}
1035
589c3563
JN		 1036static void soc_remove_codec(struct snd_soc_codec *codec)
1037{
1038 int err;
1039
1040 if (codec->driver->remove) {
1041 err = codec->driver->remove(codec);
1042 if (err < 0)
f110bfc7 1043 dev_err(codec->dev, "ASoC: failed to remove %d\n", err);
589c3563
JN		 1044 }
1045
1046 /* Make sure all DAPM widgets are freed */
1047 snd_soc_dapm_free(&codec->dapm);
1048
1049 soc_cleanup_codec_debugfs(codec);
1050 codec->probed = 0;
1051 list_del(&codec->card_list);
1052 module_put(codec->dev->driver->owner);
1053}
1054
b0aa88af 1055static void soc_remove_codec_dai(struct snd_soc_dai *codec_dai, int order)
f0fba2ad 1056{
f0fba2ad
LG		 1057 int err;
1058
0168bf0d
LG		 1059 if (codec_dai && codec_dai->probed &&
1060 codec_dai->driver->remove_order == order) {
f0fba2ad
LG		 1061 if (codec_dai->driver->remove) {
1062 err = codec_dai->driver->remove(codec_dai);
1063 if (err < 0)
f110bfc7
LG		 1064 dev_err(codec_dai->dev,
1065 "ASoC: failed to remove %s: %d\n",
1066 codec_dai->name, err);
6b05eda6 1067 }
f0fba2ad 1068 codec_dai->probed = 0;
f0fba2ad 1069 }
b0aa88af
MLC		 1070}
1071
1072static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
1073{
1074 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
88bd870f
BC		 1075 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1076 int i, err;
b0aa88af
MLC		 1077
1078 /* unregister the rtd device */
1079 if (rtd->dev_registered) {
1080 device_remove_file(rtd->dev, &dev_attr_pmdown_time);
1081 device_remove_file(rtd->dev, &dev_attr_codec_reg);
1082 device_unregister(rtd->dev);
1083 rtd->dev_registered = 0;
1084 }
1085
1086 /* remove the CODEC DAI */
88bd870f
BC		 1087 for (i = 0; i < rtd->num_codecs; i++)
1088 soc_remove_codec_dai(rtd->codec_dais[i], order);
6b05eda6 1089
f0fba2ad 1090 /* remove the cpu_dai */
0168bf0d
LG		 1091 if (cpu_dai && cpu_dai->probed &&
1092 cpu_dai->driver->remove_order == order) {
f0fba2ad
LG		 1093 if (cpu_dai->driver->remove) {
1094 err = cpu_dai->driver->remove(cpu_dai);
1095 if (err < 0)
f110bfc7
LG		 1096 dev_err(cpu_dai->dev,
1097 "ASoC: failed to remove %s: %d\n",
1098 cpu_dai->name, err);
db2a4165 1099 }
f0fba2ad 1100 cpu_dai->probed = 0;
9420d97b 1101 if (!cpu_dai->codec)
a9db7dbe 1102 module_put(cpu_dai->dev->driver->owner);
db2a4165 1103 }
f0fba2ad 1104}
db2a4165 1105
62ae68fa
SW		 1106static void soc_remove_link_components(struct snd_soc_card *card, int num,
1107 int order)
1108{
1109 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1110 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
62ae68fa
SW		 1111 struct snd_soc_platform *platform = rtd->platform;
1112 struct snd_soc_codec *codec;
88bd870f 1113 int i;
62ae68fa
SW		 1114
1115 /* remove the platform */
1116 if (platform && platform->probed &&
1117 platform->driver->remove_order == order) {
1118 soc_remove_platform(platform);
1119 }
1120
1121 /* remove the CODEC-side CODEC */
88bd870f
BC		 1122 for (i = 0; i < rtd->num_codecs; i++) {
1123 codec = rtd->codec_dais[i]->codec;
62ae68fa
SW		 1124 if (codec && codec->probed &&
1125 codec->driver->remove_order == order)
1126 soc_remove_codec(codec);
1127 }
1128
1129 /* remove any CPU-side CODEC */
1130 if (cpu_dai) {
1131 codec = cpu_dai->codec;
1132 if (codec && codec->probed &&
1133 codec->driver->remove_order == order)
1134 soc_remove_codec(codec);
1135 }
1136}
1137
0671fd8e
KM		 1138static void soc_remove_dai_links(struct snd_soc_card *card)
1139{
0168bf0d 1140 int dai, order;
0671fd8e 1141
0168bf0d
LG		 1142 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1143 order++) {
1144 for (dai = 0; dai < card->num_rtd; dai++)
62ae68fa
SW		 1145 soc_remove_link_dais(card, dai, order);
1146 }
1147
1148 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1149 order++) {
1150 for (dai = 0; dai < card->num_rtd; dai++)
1151 soc_remove_link_components(card, dai, order);
0168bf0d 1152 }
62ae68fa 1153
0671fd8e
KM		 1154 card->num_rtd = 0;
1155}
1156
ead9b919 1157static void soc_set_name_prefix(struct snd_soc_card *card,
94f99c87 1158 struct snd_soc_component *component)
ead9b919
JN		 1159{
1160 int i;
1161
ff819b83 1162 if (card->codec_conf == NULL)
ead9b919
JN		 1163 return;
1164
ff819b83
DP		 1165 for (i = 0; i < card->num_configs; i++) {
1166 struct snd_soc_codec_conf *map = &card->codec_conf[i];
94f99c87 1167 if (map->of_node && component->dev->of_node != map->of_node)
3ca041ed 1168 continue;
94f99c87 1169 if (map->dev_name && strcmp(component->name, map->dev_name))
3ca041ed 1170 continue;
94f99c87 1171 component->name_prefix = map->name_prefix;
3ca041ed 1172 break;
ead9b919
JN		 1173 }
1174}
1175
589c3563
JN		 1176static int soc_probe_codec(struct snd_soc_card *card,
1177 struct snd_soc_codec *codec)
1178{
1179 int ret = 0;
89b95ac0 1180 const struct snd_soc_codec_driver *driver = codec->driver;
888df395 1181 struct snd_soc_dai *dai;
589c3563 1182
00200107 1183 codec->component.card = card;
589c3563 1184 codec->dapm.card = card;
94f99c87 1185 soc_set_name_prefix(card, &codec->component);
589c3563 1186
70d29331
JN		 1187 if (!try_module_get(codec->dev->driver->owner))
1188 return -ENODEV;
1189
d5d1e0be
LPC		 1190 soc_init_codec_debugfs(codec);
1191
b318ad50
NP		 1192 if (driver->dapm_widgets) {
1193 ret = snd_soc_dapm_new_controls(&codec->dapm,
1194 driver->dapm_widgets,
1195 driver->num_dapm_widgets);
1196
1197 if (ret != 0) {
1198 dev_err(codec->dev,
1199 "Failed to create new controls %d\n", ret);
1200 goto err_probe;
1201 }
1202 }
77530150 1203
888df395 1204 /* Create DAPM widgets for each DAI stream */
261edc70
NP		 1205 list_for_each_entry(dai, &codec->component.dai_list, list) {
1206 ret = snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
1207
1208 if (ret != 0) {
1209 dev_err(codec->dev,
1210 "Failed to create DAI widgets %d\n", ret);
1211 goto err_probe;
1212 }
1213 }
888df395 1214
33c5f969
MB		 1215 codec->dapm.idle_bias_off = driver->idle_bias_off;
1216
89b95ac0
MB		 1217 if (driver->probe) {
1218 ret = driver->probe(codec);
589c3563
JN		 1219 if (ret < 0) {
1220 dev_err(codec->dev,
f110bfc7 1221 "ASoC: failed to probe CODEC %d\n", ret);
70d29331 1222 goto err_probe;
589c3563 1223 }
ff541f4b
CL		 1224 WARN(codec->dapm.idle_bias_off &&
1225 codec->dapm.bias_level != SND_SOC_BIAS_OFF,
10e8aa9a 1226 "codec %s can not start from non-off bias with idle_bias_off==1\n",
f4333203 1227 codec->component.name);
589c3563
JN		 1228 }
1229
b7af1daf 1230 if (driver->controls)
022658be 1231 snd_soc_add_codec_controls(codec, driver->controls,
b7af1daf 1232 driver->num_controls);
89b95ac0
MB		 1233 if (driver->dapm_routes)
1234 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
1235 driver->num_dapm_routes);
1236
589c3563
JN		 1237 /* mark codec as probed and add to card codec list */
1238 codec->probed = 1;
1239 list_add(&codec->card_list, &card->codec_dev_list);
7be31be8 1240 list_add(&codec->dapm.list, &card->dapm_list);
589c3563 1241
70d29331
JN		 1242 return 0;
1243
1244err_probe:
d5d1e0be 1245 soc_cleanup_codec_debugfs(codec);
70d29331
JN		 1246 module_put(codec->dev->driver->owner);
1247
589c3563
JN		 1248 return ret;
1249}
1250
956245e9
LG		 1251static int soc_probe_platform(struct snd_soc_card *card,
1252 struct snd_soc_platform *platform)
1253{
1254 int ret = 0;
1255 const struct snd_soc_platform_driver *driver = platform->driver;
1438c2f6 1256 struct snd_soc_component *component;
be09ad90 1257 struct snd_soc_dai *dai;
956245e9 1258
00200107 1259 platform->component.card = card;
bc9af9fa 1260 platform->component.dapm.card = card;
956245e9
LG		 1261
1262 if (!try_module_get(platform->dev->driver->owner))
1263 return -ENODEV;
1264
731f1ab2
SG		 1265 soc_init_platform_debugfs(platform);
1266
cb2cf612 1267 if (driver->dapm_widgets)
bc9af9fa 1268 snd_soc_dapm_new_controls(&platform->component.dapm,
cb2cf612
LG		 1269 driver->dapm_widgets, driver->num_dapm_widgets);
1270
be09ad90 1271 /* Create DAPM widgets for each DAI stream */
1438c2f6
LPC		 1272 list_for_each_entry(component, &component_list, list) {
1273 if (component->dev != platform->dev)
be09ad90 1274 continue;
1438c2f6 1275 list_for_each_entry(dai, &component->dai_list, list)
bc9af9fa
LPC		 1276 snd_soc_dapm_new_dai_widgets(&platform->component.dapm,
1277 dai);
be09ad90
LG		 1278 }
1279
bc9af9fa 1280 platform->component.dapm.idle_bias_off = 1;
3fec6b6d 1281
956245e9
LG		 1282 if (driver->probe) {
1283 ret = driver->probe(platform);
1284 if (ret < 0) {
1285 dev_err(platform->dev,
f110bfc7 1286 "ASoC: failed to probe platform %d\n", ret);
956245e9
LG		 1287 goto err_probe;
1288 }
1289 }
1290
cb2cf612
LG		 1291 if (driver->controls)
1292 snd_soc_add_platform_controls(platform, driver->controls,
1293 driver->num_controls);
1294 if (driver->dapm_routes)
bc9af9fa
LPC		 1295 snd_soc_dapm_add_routes(&platform->component.dapm,
1296 driver->dapm_routes, driver->num_dapm_routes);
cb2cf612 1297
956245e9
LG		 1298 /* mark platform as probed and add to card platform list */
1299 platform->probed = 1;
bc9af9fa 1300 list_add(&platform->component.dapm.list, &card->dapm_list);
956245e9
LG		 1301
1302 return 0;
1303
1304err_probe:
02db1103 1305 soc_cleanup_platform_debugfs(platform);
956245e9
LG		 1306 module_put(platform->dev->driver->owner);
1307
1308 return ret;
1309}
1310
36ae1a96
MB		 1311static void rtd_release(struct device *dev)
1312{
1313 kfree(dev);
1314}
f0fba2ad 1315
5f3484ac
LPC		 1316static int soc_post_component_init(struct snd_soc_pcm_runtime *rtd,
1317 const char *name)
503ae5e0 1318{
589c3563
JN		 1319 int ret = 0;
1320
589c3563 1321 /* register the rtd device */
36ae1a96
MB		 1322 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1323 if (!rtd->dev)
1324 return -ENOMEM;
1325 device_initialize(rtd->dev);
5f3484ac 1326 rtd->dev->parent = rtd->card->dev;
36ae1a96
MB		 1327 rtd->dev->release = rtd_release;
1328 rtd->dev->init_name = name;
1329 dev_set_drvdata(rtd->dev, rtd);
b8c0dab9 1330 mutex_init(&rtd->pcm_mutex);
01d7584c
LG		 1331 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
1332 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
1333 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
1334 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
36ae1a96 1335 ret = device_add(rtd->dev);
589c3563 1336 if (ret < 0) {
865df9cb
CL		 1337 /* calling put_device() here to free the rtd->dev */
1338 put_device(rtd->dev);
5f3484ac 1339 dev_err(rtd->card->dev,
f110bfc7 1340 "ASoC: failed to register runtime device: %d\n", ret);
589c3563
JN		 1341 return ret;
1342 }
1343 rtd->dev_registered = 1;
1344
1345 /* add DAPM sysfs entries for this codec */
36ae1a96 1346 ret = snd_soc_dapm_sys_add(rtd->dev);
589c3563 1347 if (ret < 0)
44c69bb1 1348 dev_err(rtd->dev,
f110bfc7 1349 "ASoC: failed to add codec dapm sysfs entries: %d\n", ret);
589c3563
JN		 1350
1351 /* add codec sysfs entries */
36ae1a96 1352 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
589c3563 1353 if (ret < 0)
44c69bb1 1354 dev_err(rtd->dev,
f110bfc7 1355 "ASoC: failed to add codec sysfs files: %d\n", ret);
589c3563
JN		 1356
1357 return 0;
1358}
1359
62ae68fa
SW		 1360static int soc_probe_link_components(struct snd_soc_card *card, int num,
1361 int order)
1362{
1363 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1364 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
62ae68fa 1365 struct snd_soc_platform *platform = rtd->platform;
88bd870f 1366 int i, ret;
62ae68fa
SW		 1367
1368 /* probe the CPU-side component, if it is a CODEC */
1369 if (cpu_dai->codec &&
1370 !cpu_dai->codec->probed &&
1371 cpu_dai->codec->driver->probe_order == order) {
1372 ret = soc_probe_codec(card, cpu_dai->codec);
1373 if (ret < 0)
1374 return ret;
1375 }
1376
88bd870f
BC		 1377 /* probe the CODEC-side components */
1378 for (i = 0; i < rtd->num_codecs; i++) {
1379 if (!rtd->codec_dais[i]->codec->probed &&
1380 rtd->codec_dais[i]->codec->driver->probe_order == order) {
1381 ret = soc_probe_codec(card, rtd->codec_dais[i]->codec);
1382 if (ret < 0)
1383 return ret;
1384 }
62ae68fa
SW		 1385 }
1386
1387 /* probe the platform */
1388 if (!platform->probed &&
1389 platform->driver->probe_order == order) {
1390 ret = soc_probe_platform(card, platform);
1391 if (ret < 0)
1392 return ret;
1393 }
1394
1395 return 0;
1396}
1397
b0aa88af
MLC		 1398static int soc_probe_codec_dai(struct snd_soc_card *card,
1399 struct snd_soc_dai *codec_dai,
1400 int order)
1401{
1402 int ret;
1403
1404 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
1405 if (codec_dai->driver->probe) {
1406 ret = codec_dai->driver->probe(codec_dai);
1407 if (ret < 0) {
1408 dev_err(codec_dai->dev,
1409 "ASoC: failed to probe CODEC DAI %s: %d\n",
1410 codec_dai->name, ret);
1411 return ret;
1412 }
1413 }
1414
1415 /* mark codec_dai as probed and add to card dai list */
1416 codec_dai->probed = 1;
b0aa88af
MLC		 1417 }
1418
1419 return 0;
1420}
1421
2436a723
MLC		 1422static int soc_link_dai_widgets(struct snd_soc_card *card,
1423 struct snd_soc_dai_link *dai_link,
3f901a02 1424 struct snd_soc_pcm_runtime *rtd)
2436a723 1425{
3f901a02
BC		 1426 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1427 struct snd_soc_dai *codec_dai = rtd->codec_dai;
2436a723
MLC		 1428 struct snd_soc_dapm_widget *play_w, *capture_w;
1429 int ret;
1430
88bd870f
BC		 1431 if (rtd->num_codecs > 1)
1432 dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n");
1433
2436a723
MLC		 1434 /* link the DAI widgets */
1435 play_w = codec_dai->playback_widget;
1436 capture_w = cpu_dai->capture_widget;
1437 if (play_w && capture_w) {
1438 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1439 capture_w, play_w);
1440 if (ret != 0) {
1441 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1442 play_w->name, capture_w->name, ret);
1443 return ret;
1444 }
1445 }
1446
1447 play_w = cpu_dai->playback_widget;
1448 capture_w = codec_dai->capture_widget;
1449 if (play_w && capture_w) {
1450 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1451 capture_w, play_w);
1452 if (ret != 0) {
1453 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1454 play_w->name, capture_w->name, ret);
1455 return ret;
1456 }
1457 }
1458
1459 return 0;
1460}
1461
62ae68fa 1462static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 1463{
1464 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1465 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
f0fba2ad 1466 struct snd_soc_platform *platform = rtd->platform;
c74184ed 1467 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
88bd870f 1468 int i, ret;
f0fba2ad 1469
f110bfc7 1470 dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
0168bf0d 1471 card->name, num, order);
f0fba2ad
LG		 1472
1473 /* config components */
f0fba2ad 1474 cpu_dai->platform = platform;
f0fba2ad 1475 cpu_dai->card = card;
88bd870f
BC		 1476 for (i = 0; i < rtd->num_codecs; i++)
1477 rtd->codec_dais[i]->card = card;
f0fba2ad
LG		 1478
1479 /* set default power off timeout */
1480 rtd->pmdown_time = pmdown_time;
1481
1482 /* probe the cpu_dai */
0168bf0d
LG		 1483 if (!cpu_dai->probed &&
1484 cpu_dai->driver->probe_order == order) {
a9db7dbe 1485 if (!cpu_dai->codec) {
a9db7dbe
SW		 1486 if (!try_module_get(cpu_dai->dev->driver->owner))
1487 return -ENODEV;
a9db7dbe 1488 }
be09ad90 1489
f0fba2ad
LG		 1490 if (cpu_dai->driver->probe) {
1491 ret = cpu_dai->driver->probe(cpu_dai);
1492 if (ret < 0) {
f110bfc7
LG		 1493 dev_err(cpu_dai->dev,
1494 "ASoC: failed to probe CPU DAI %s: %d\n",
1495 cpu_dai->name, ret);
61b61e3c 1496 module_put(cpu_dai->dev->driver->owner);
f0fba2ad
LG		 1497 return ret;
1498 }
1499 }
1500 cpu_dai->probed = 1;
db2a4165
FM		 1501 }
1502
f0fba2ad 1503 /* probe the CODEC DAI */
88bd870f
BC		 1504 for (i = 0; i < rtd->num_codecs; i++) {
1505 ret = soc_probe_codec_dai(card, rtd->codec_dais[i], order);
1506 if (ret)
1507 return ret;
1508 }
fe3e78e0 1509
0168bf0d
LG		 1510 /* complete DAI probe during last probe */
1511 if (order != SND_SOC_COMP_ORDER_LAST)
1512 return 0;
1513
5f3484ac
LPC		 1514 /* do machine specific initialization */
1515 if (dai_link->init) {
1516 ret = dai_link->init(rtd);
1517 if (ret < 0) {
1518 dev_err(card->dev, "ASoC: failed to init %s: %d\n",
1519 dai_link->name, ret);
1520 return ret;
1521 }
1522 }
1523
1524 ret = soc_post_component_init(rtd, dai_link->name);
589c3563 1525 if (ret)
f0fba2ad 1526 return ret;
fe3e78e0 1527
5f3484ac
LPC		 1528#ifdef CONFIG_DEBUG_FS
1529 /* add DPCM sysfs entries */
1530 if (dai_link->dynamic) {
1531 ret = soc_dpcm_debugfs_add(rtd);
1532 if (ret < 0) {
1533 dev_err(rtd->dev,
1534 "ASoC: failed to add dpcm sysfs entries: %d\n",
1535 ret);
1536 return ret;
1537 }
1538 }
1539#endif
1540
36ae1a96 1541 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
f0fba2ad 1542 if (ret < 0)
f110bfc7
LG		 1543 dev_warn(rtd->dev, "ASoC: failed to add pmdown_time sysfs: %d\n",
1544 ret);
f0fba2ad 1545
1245b700
NK		 1546 if (cpu_dai->driver->compress_dai) {
1547 /*create compress_device"*/
1548 ret = soc_new_compress(rtd, num);
c74184ed 1549 if (ret < 0) {
f110bfc7 1550 dev_err(card->dev, "ASoC: can't create compress %s\n",
1245b700 1551 dai_link->stream_name);
c74184ed
MB		 1552 return ret;
1553 }
1554 } else {
1245b700
NK		 1555
1556 if (!dai_link->params) {
1557 /* create the pcm */
1558 ret = soc_new_pcm(rtd, num);
1559 if (ret < 0) {
f110bfc7 1560 dev_err(card->dev, "ASoC: can't create pcm %s :%d\n",
1245b700 1561 dai_link->stream_name, ret);
c74184ed
MB		 1562 return ret;
1563 }
1245b700 1564 } else {
9d58a077
RF		 1565 INIT_DELAYED_WORK(&rtd->delayed_work,
1566 codec2codec_close_delayed_work);
1567
1245b700 1568 /* link the DAI widgets */
3f901a02 1569 ret = soc_link_dai_widgets(card, dai_link, rtd);
2436a723
MLC		 1570 if (ret)
1571 return ret;
c74184ed 1572 }
f0fba2ad
LG		 1573 }
1574
1575 /* add platform data for AC97 devices */
88bd870f
BC		 1576 for (i = 0; i < rtd->num_codecs; i++) {
1577 if (rtd->codec_dais[i]->driver->ac97_control)
1578 snd_ac97_dev_add_pdata(rtd->codec_dais[i]->codec->ac97,
1579 rtd->cpu_dai->ac97_pdata);
1580 }
f0fba2ad
LG		 1581
1582 return 0;
1583}
1584
fe3e78e0 1585#ifdef CONFIG_SND_SOC_AC97_BUS
02c9c7b9
MLC		 1586static int soc_register_ac97_codec(struct snd_soc_codec *codec,
1587 struct snd_soc_dai *codec_dai)
f0fba2ad
LG		 1588{
1589 int ret;
1590
fe3e78e0
MB		 1591 /* Only instantiate AC97 if not already done by the adaptor
1592 * for the generic AC97 subsystem.
1593 */
02c9c7b9 1594 if (codec_dai->driver->ac97_control && !codec->ac97_registered) {
0562f788
MW		 1595 /*
1596 * It is possible that the AC97 device is already registered to
1597 * the device subsystem. This happens when the device is created
1598 * via snd_ac97_mixer(). Currently only SoC codec that does so
1599 * is the generic AC97 glue but others migh emerge.
1600 *
1601 * In those cases we don't try to register the device again.
1602 */
02c9c7b9 1603 if (!codec->ac97_created)
0562f788 1604 return 0;
f0fba2ad 1605
02c9c7b9 1606 ret = soc_ac97_dev_register(codec);
fe3e78e0 1607 if (ret < 0) {
02c9c7b9 1608 dev_err(codec->dev,
f110bfc7 1609 "ASoC: AC97 device register failed: %d\n", ret);
f0fba2ad 1610 return ret;
fe3e78e0 1611 }
f0fba2ad 1612
02c9c7b9 1613 codec->ac97_registered = 1;
fe3e78e0 1614 }
f0fba2ad
LG		 1615 return 0;
1616}
1617
02c9c7b9 1618static void soc_unregister_ac97_codec(struct snd_soc_codec *codec)
f0fba2ad
LG		 1619{
1620 if (codec->ac97_registered) {
1621 soc_ac97_dev_unregister(codec);
1622 codec->ac97_registered = 0;
1623 }
1624}
02c9c7b9 1625
88bd870f
BC		 1626static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1627{
1628 int i, ret;
1629
1630 for (i = 0; i < rtd->num_codecs; i++) {
1631 struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
1632
1633 ret = soc_register_ac97_codec(codec_dai->codec, codec_dai);
1634 if (ret) {
1635 while (--i >= 0)
1636 soc_unregister_ac97_codec(codec_dai->codec);
1637 return ret;
1638 }
1639 }
1640
1641 return 0;
1642}
1643
02c9c7b9
MLC		 1644static void soc_unregister_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1645{
88bd870f
BC		 1646 int i;
1647
1648 for (i = 0; i < rtd->num_codecs; i++)
1649 soc_unregister_ac97_codec(rtd->codec_dais[i]->codec);
02c9c7b9 1650}
fe3e78e0
MB		 1651#endif
1652
44c69bb1 1653static int soc_bind_aux_dev(struct snd_soc_card *card, int num)
3ca041ed 1654{
44c69bb1 1655 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
3ca041ed
SR		 1656 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
1657 const char *codecname = aux_dev->codec_name;
3ca041ed 1658
44c69bb1
LPC		 1659 rtd->codec = soc_find_codec(aux_dev->codec_of_node, codecname);
1660 if (!rtd->codec) {
3ca041ed
SR		 1661 if (aux_dev->codec_of_node)
1662 codecname = of_node_full_name(aux_dev->codec_of_node);
1663
44c69bb1 1664 dev_err(card->dev, "ASoC: %s not registered\n", codecname);
3ca041ed
SR		 1665 return -EPROBE_DEFER;
1666 }
fb099cb7 1667
44c69bb1 1668 return 0;
b19e6e7b
MB		 1669}
1670
2eea392d
JN		 1671static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1672{
44c69bb1 1673 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
2eea392d 1674 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
44c69bb1 1675 int ret;
3ca041ed 1676
44c69bb1
LPC		 1677 if (rtd->codec->probed) {
1678 dev_err(rtd->codec->dev, "ASoC: codec already probed\n");
3ca041ed 1679 return -EBUSY;
2eea392d
JN		 1680 }
1681
44c69bb1 1682 ret = soc_probe_codec(card, rtd->codec);
2eea392d 1683 if (ret < 0)
589c3563 1684 return ret;
2eea392d 1685
5f3484ac
LPC		 1686 /* do machine specific initialization */
1687 if (aux_dev->init) {
1688 ret = aux_dev->init(&rtd->codec->dapm);
1689 if (ret < 0) {
1690 dev_err(card->dev, "ASoC: failed to init %s: %d\n",
1691 aux_dev->name, ret);
1692 return ret;
1693 }
1694 }
2eea392d 1695
5f3484ac 1696 return soc_post_component_init(rtd, aux_dev->name);
2eea392d
JN		 1697}
1698
1699static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1700{
1701 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1702 struct snd_soc_codec *codec = rtd->codec;
2eea392d
JN		 1703
1704 /* unregister the rtd device */
1705 if (rtd->dev_registered) {
36ae1a96 1706 device_remove_file(rtd->dev, &dev_attr_codec_reg);
d3bf1561 1707 device_unregister(rtd->dev);
2eea392d
JN		 1708 rtd->dev_registered = 0;
1709 }
1710
589c3563
JN		 1711 if (codec && codec->probed)
1712 soc_remove_codec(codec);
2eea392d
JN		 1713}
1714
f90fb3f7 1715static int snd_soc_init_codec_cache(struct snd_soc_codec *codec)
fdf0f54d
DP		 1716{
1717 int ret;
1718
1719 if (codec->cache_init)
1720 return 0;
1721
fdf0f54d
DP		 1722 ret = snd_soc_cache_init(codec);
1723 if (ret < 0) {
10e8aa9a
MM		 1724 dev_err(codec->dev,
1725 "ASoC: Failed to set cache compression type: %d\n",
1726 ret);
fdf0f54d
DP		 1727 return ret;
1728 }
1729 codec->cache_init = 1;
1730 return 0;
1731}
1732
b19e6e7b 1733static int snd_soc_instantiate_card(struct snd_soc_card *card)
f0fba2ad 1734{
fdf0f54d 1735 struct snd_soc_codec *codec;
75d9ac46 1736 struct snd_soc_dai_link *dai_link;
f04209a7 1737 int ret, i, order, dai_fmt;
fe3e78e0 1738
01b9d99a 1739 mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
dbe21408 1740
f0fba2ad 1741 /* bind DAIs */
b19e6e7b
MB		 1742 for (i = 0; i < card->num_links; i++) {
1743 ret = soc_bind_dai_link(card, i);
1744 if (ret != 0)
1745 goto base_error;
1746 }
fe3e78e0 1747
44c69bb1 1748 /* bind aux_devs too */
b19e6e7b 1749 for (i = 0; i < card->num_aux_devs; i++) {
44c69bb1 1750 ret = soc_bind_aux_dev(card, i);
b19e6e7b
MB		 1751 if (ret != 0)
1752 goto base_error;
f0fba2ad 1753 }
435c5e25 1754
fdf0f54d
DP		 1755 /* initialize the register cache for each available codec */
1756 list_for_each_entry(codec, &codec_list, list) {
1757 if (codec->cache_init)
1758 continue;
f90fb3f7 1759 ret = snd_soc_init_codec_cache(codec);
b19e6e7b
MB		 1760 if (ret < 0)
1761 goto base_error;
fdf0f54d
DP		 1762 }
1763
f0fba2ad 1764 /* card bind complete so register a sound card */
102b5a8d 1765 ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
f0fba2ad
LG		 1766 card->owner, 0, &card->snd_card);
1767 if (ret < 0) {
10e8aa9a
MM		 1768 dev_err(card->dev,
1769 "ASoC: can't create sound card for card %s: %d\n",
1770 card->name, ret);
b19e6e7b 1771 goto base_error;
f0fba2ad 1772 }
f0fba2ad 1773
e37a4970
MB		 1774 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1775 card->dapm.dev = card->dev;
1776 card->dapm.card = card;
1777 list_add(&card->dapm.list, &card->dapm_list);
1778
d5d1e0be
LPC		 1779#ifdef CONFIG_DEBUG_FS
1780 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1781#endif
1782
88ee1c61 1783#ifdef CONFIG_PM_SLEEP
f0fba2ad
LG		 1784 /* deferred resume work */
1785 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
1786#endif
db2a4165 1787
9a841ebb
MB		 1788 if (card->dapm_widgets)
1789 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1790 card->num_dapm_widgets);
1791
f0fba2ad
LG		 1792 /* initialise the sound card only once */
1793 if (card->probe) {
e7361ec4 1794 ret = card->probe(card);
f0fba2ad
LG		 1795 if (ret < 0)
1796 goto card_probe_error;
1797 }
fe3e78e0 1798
62ae68fa 1799 /* probe all components used by DAI links on this card */
0168bf0d
LG		 1800 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1801 order++) {
1802 for (i = 0; i < card->num_links; i++) {
62ae68fa 1803 ret = soc_probe_link_components(card, i, order);
0168bf0d 1804 if (ret < 0) {
f110bfc7
LG		 1805 dev_err(card->dev,
1806 "ASoC: failed to instantiate card %d\n",
1807 ret);
62ae68fa
SW		 1808 goto probe_dai_err;
1809 }
1810 }
1811 }
1812
1813 /* probe all DAI links on this card */
1814 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1815 order++) {
1816 for (i = 0; i < card->num_links; i++) {
1817 ret = soc_probe_link_dais(card, i, order);
1818 if (ret < 0) {
f110bfc7
LG		 1819 dev_err(card->dev,
1820 "ASoC: failed to instantiate card %d\n",
1821 ret);
0168bf0d
LG		 1822 goto probe_dai_err;
1823 }
f0fba2ad
LG		 1824 }
1825 }
db2a4165 1826
2eea392d
JN		 1827 for (i = 0; i < card->num_aux_devs; i++) {
1828 ret = soc_probe_aux_dev(card, i);
1829 if (ret < 0) {
f110bfc7
LG		 1830 dev_err(card->dev,
1831 "ASoC: failed to add auxiliary devices %d\n",
1832 ret);
2eea392d
JN		 1833 goto probe_aux_dev_err;
1834 }
1835 }
1836
888df395 1837 snd_soc_dapm_link_dai_widgets(card);
b893ea5f 1838 snd_soc_dapm_connect_dai_link_widgets(card);
888df395 1839
b7af1daf 1840 if (card->controls)
022658be 1841 snd_soc_add_card_controls(card, card->controls, card->num_controls);
b7af1daf 1842
b8ad29de
MB		 1843 if (card->dapm_routes)
1844 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1845 card->num_dapm_routes);
1846
75d9ac46 1847 for (i = 0; i < card->num_links; i++) {
88bd870f 1848 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
75d9ac46 1849 dai_link = &card->dai_link[i];
f04209a7 1850 dai_fmt = dai_link->dai_fmt;
75d9ac46 1851
f04209a7 1852 if (dai_fmt) {
88bd870f
BC		 1853 struct snd_soc_dai **codec_dais = rtd->codec_dais;
1854 int j;
1855
1856 for (j = 0; j < rtd->num_codecs; j++) {
1857 struct snd_soc_dai *codec_dai = codec_dais[j];
1858
1859 ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
1860 if (ret != 0 && ret != -ENOTSUPP)
1861 dev_warn(codec_dai->dev,
1862 "ASoC: Failed to set DAI format: %d\n",
1863 ret);
1864 }
f04209a7
MB		 1865 }
1866
1867 /* If this is a regular CPU link there will be a platform */
fe33d4c5
SW		 1868 if (dai_fmt &&
1869 (dai_link->platform_name || dai_link->platform_of_node)) {
f04209a7
MB		 1870 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1871 dai_fmt);
1872 if (ret != 0 && ret != -ENOTSUPP)
1873 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1874 "ASoC: Failed to set DAI format: %d\n",
f04209a7
MB		 1875 ret);
1876 } else if (dai_fmt) {
1877 /* Flip the polarity for the "CPU" end */
1878 dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
1879 switch (dai_link->dai_fmt &
1880 SND_SOC_DAIFMT_MASTER_MASK) {
1881 case SND_SOC_DAIFMT_CBM_CFM:
1882 dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
1883 break;
1884 case SND_SOC_DAIFMT_CBM_CFS:
1885 dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
1886 break;
1887 case SND_SOC_DAIFMT_CBS_CFM:
1888 dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
1889 break;
1890 case SND_SOC_DAIFMT_CBS_CFS:
1891 dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1892 break;
1893 }
75d9ac46
MB		 1894
1895 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
f04209a7 1896 dai_fmt);
5e4ba569 1897 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1898 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1899 "ASoC: Failed to set DAI format: %d\n",
75d9ac46
MB		 1900 ret);
1901 }
1902 }
1903
f0fba2ad 1904 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
f0fba2ad 1905 "%s", card->name);
22de71ba
LG		 1906 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1907 "%s", card->long_name ? card->long_name : card->name);
f0e8ed85
MB		 1908 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1909 "%s", card->driver_name ? card->driver_name : card->name);
1910 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1911 switch (card->snd_card->driver[i]) {
1912 case '_':
1913 case '-':
1914 case '\0':
1915 break;
1916 default:
1917 if (!isalnum(card->snd_card->driver[i]))
1918 card->snd_card->driver[i] = '_';
1919 break;
1920 }
1921 }
f0fba2ad 1922
28e9ad92
MB		 1923 if (card->late_probe) {
1924 ret = card->late_probe(card);
1925 if (ret < 0) {
f110bfc7 1926 dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n",
28e9ad92
MB		 1927 card->name, ret);
1928 goto probe_aux_dev_err;
1929 }
1930 }
1931
1633281b 1932 if (card->fully_routed)
7df37884 1933 snd_soc_dapm_auto_nc_pins(card);
1633281b 1934
824ef826 1935 snd_soc_dapm_new_widgets(card);
8c193b8d 1936
f0fba2ad
LG		 1937 ret = snd_card_register(card->snd_card);
1938 if (ret < 0) {
f110bfc7
LG		 1939 dev_err(card->dev, "ASoC: failed to register soundcard %d\n",
1940 ret);
6b3ed785 1941 goto probe_aux_dev_err;
db2a4165
FM		 1942 }
1943
f0fba2ad
LG		 1944#ifdef CONFIG_SND_SOC_AC97_BUS
1945 /* register any AC97 codecs */
1946 for (i = 0; i < card->num_rtd; i++) {
6b3ed785
AL		 1947 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1948 if (ret < 0) {
10e8aa9a
MM		 1949 dev_err(card->dev,
1950 "ASoC: failed to register AC97: %d\n", ret);
6b3ed785 1951 while (--i >= 0)
02c9c7b9 1952 soc_unregister_ac97_dai_link(&card->rtd[i]);
6b3ed785 1953 goto probe_aux_dev_err;
f0fba2ad 1954 }
6b3ed785 1955 }
f0fba2ad
LG		 1956#endif
1957
1958 card->instantiated = 1;
4f4c0072 1959 snd_soc_dapm_sync(&card->dapm);
f0fba2ad 1960 mutex_unlock(&card->mutex);
b19e6e7b
MB		 1961
1962 return 0;
f0fba2ad 1963
2eea392d
JN		 1964probe_aux_dev_err:
1965 for (i = 0; i < card->num_aux_devs; i++)
1966 soc_remove_aux_dev(card, i);
1967
f0fba2ad 1968probe_dai_err:
0671fd8e 1969 soc_remove_dai_links(card);
f0fba2ad
LG		 1970
1971card_probe_error:
87506549 1972 if (card->remove)
e7361ec4 1973 card->remove(card);
f0fba2ad
LG		 1974
1975 snd_card_free(card->snd_card);
1976
b19e6e7b 1977base_error:
f0fba2ad 1978 mutex_unlock(&card->mutex);
db2a4165 1979
b19e6e7b 1980 return ret;
435c5e25
MB		 1981}
1982
1983/* probes a new socdev */
1984static int soc_probe(struct platform_device *pdev)
1985{
f0fba2ad 1986 struct snd_soc_card *card = platform_get_drvdata(pdev);
435c5e25 1987
70a7ca34
VK		 1988 /*
1989 * no card, so machine driver should be registering card
1990 * we should not be here in that case so ret error
1991 */
1992 if (!card)
1993 return -EINVAL;
1994
fe4085e8 1995 dev_warn(&pdev->dev,
f110bfc7 1996 "ASoC: machine %s should use snd_soc_register_card()\n",
fe4085e8
MB		 1997 card->name);
1998
435c5e25
MB		 1999 /* Bodge while we unpick instantiation */
2000 card->dev = &pdev->dev;
f0fba2ad 2001
28d528c8 2002 return snd_soc_register_card(card);
db2a4165
FM		 2003}
2004
b0e26485 2005static int soc_cleanup_card_resources(struct snd_soc_card *card)
db2a4165
FM		 2006{
2007 int i;
db2a4165 2008
b0e26485
VK		 2009 /* make sure any delayed work runs */
2010 for (i = 0; i < card->num_rtd; i++) {
2011 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 2012 flush_delayed_work(&rtd->delayed_work);
b0e26485 2013 }
914dc182 2014
b0e26485
VK		 2015 /* remove auxiliary devices */
2016 for (i = 0; i < card->num_aux_devs; i++)
2017 soc_remove_aux_dev(card, i);
db2a4165 2018
b0e26485 2019 /* remove and free each DAI */
0671fd8e 2020 soc_remove_dai_links(card);
2eea392d 2021
b0e26485 2022 soc_cleanup_card_debugfs(card);
f0fba2ad 2023
b0e26485
VK		 2024 /* remove the card */
2025 if (card->remove)
e7361ec4 2026 card->remove(card);
a6052154 2027
0aaae527
LPC		 2028 snd_soc_dapm_free(&card->dapm);
2029
b0e26485
VK		 2030 snd_card_free(card->snd_card);
2031 return 0;
2032
2033}
2034
2035/* removes a socdev */
2036static int soc_remove(struct platform_device *pdev)
2037{
2038 struct snd_soc_card *card = platform_get_drvdata(pdev);
db2a4165 2039
c5af3a2e 2040 snd_soc_unregister_card(card);
db2a4165
FM		 2041 return 0;
2042}
2043
6f8ab4ac 2044int snd_soc_poweroff(struct device *dev)
51737470 2045{
6f8ab4ac 2046 struct snd_soc_card *card = dev_get_drvdata(dev);
f0fba2ad 2047 int i;
51737470
MB		 2048
2049 if (!card->instantiated)
416356fc 2050 return 0;
51737470
MB		 2051
2052 /* Flush out pmdown_time work - we actually do want to run it
2053 * now, we're shutting down so no imminent restart. */
f0fba2ad
LG		 2054 for (i = 0; i < card->num_rtd; i++) {
2055 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 2056 flush_delayed_work(&rtd->delayed_work);
f0fba2ad 2057 }
51737470 2058
f0fba2ad 2059 snd_soc_dapm_shutdown(card);
416356fc 2060
988e8cc4
NC		 2061 /* deactivate pins to sleep state */
2062 for (i = 0; i < card->num_rtd; i++) {
88bd870f
BC		 2063 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
2064 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
2065 int j;
2066
988e8cc4 2067 pinctrl_pm_select_sleep_state(cpu_dai->dev);
88bd870f
BC		 2068 for (j = 0; j < rtd->num_codecs; j++) {
2069 struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
2070 pinctrl_pm_select_sleep_state(codec_dai->dev);
2071 }
988e8cc4
NC		 2072 }
2073
416356fc 2074 return 0;
51737470 2075}
6f8ab4ac 2076EXPORT_SYMBOL_GPL(snd_soc_poweroff);
51737470 2077
6f8ab4ac 2078const struct dev_pm_ops snd_soc_pm_ops = {
b1dd5897
VK		 2079 .suspend = snd_soc_suspend,
2080 .resume = snd_soc_resume,
2081 .freeze = snd_soc_suspend,
2082 .thaw = snd_soc_resume,
6f8ab4ac 2083 .poweroff = snd_soc_poweroff,
b1dd5897 2084 .restore = snd_soc_resume,
416356fc 2085};
deb2607e 2086EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
416356fc 2087
db2a4165
FM		 2088/* ASoC platform driver */
2089static struct platform_driver soc_driver = {
2090 .driver = {
2091 .name = "soc-audio",
8b45a209 2092 .owner = THIS_MODULE,
6f8ab4ac 2093 .pm = &snd_soc_pm_ops,
db2a4165
FM		 2094 },
2095 .probe = soc_probe,
2096 .remove = soc_remove,
db2a4165
FM		 2097};
2098
db2a4165
FM		 2099/**
2100 * snd_soc_new_ac97_codec - initailise AC97 device
2101 * @codec: audio codec
2102 * @ops: AC97 bus operations
2103 * @num: AC97 codec number
2104 *
2105 * Initialises AC97 codec resources for use by ad-hoc devices only.
2106 */
2107int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
2108 struct snd_ac97_bus_ops *ops, int num)
2109{
2110 mutex_lock(&codec->mutex);
2111
2112 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
2113 if (codec->ac97 == NULL) {
2114 mutex_unlock(&codec->mutex);
2115 return -ENOMEM;
2116 }
2117
2118 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
2119 if (codec->ac97->bus == NULL) {
2120 kfree(codec->ac97);
2121 codec->ac97 = NULL;
2122 mutex_unlock(&codec->mutex);
2123 return -ENOMEM;
2124 }
2125
2126 codec->ac97->bus->ops = ops;
2127 codec->ac97->num = num;
0562f788
MW		 2128
2129 /*
2130 * Mark the AC97 device to be created by us. This way we ensure that the
2131 * device will be registered with the device subsystem later on.
2132 */
2133 codec->ac97_created = 1;
2134
db2a4165
FM		 2135 mutex_unlock(&codec->mutex);
2136 return 0;
2137}
2138EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
2139
741a509f
MP		 2140static struct snd_ac97_reset_cfg snd_ac97_rst_cfg;
2141
2142static void snd_soc_ac97_warm_reset(struct snd_ac97 *ac97)
2143{
2144 struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
2145
2146 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_warm_reset);
2147
2148 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 1);
2149
2150 udelay(10);
2151
2152 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
2153
2154 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
2155 msleep(2);
2156}
2157
2158static void snd_soc_ac97_reset(struct snd_ac97 *ac97)
2159{
2160 struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
2161
2162 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_reset);
2163
2164 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
2165 gpio_direction_output(snd_ac97_rst_cfg.gpio_sdata, 0);
2166 gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 0);
2167
2168 udelay(10);
2169
2170 gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 1);
2171
2172 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
2173 msleep(2);
2174}
2175
2176static int snd_soc_ac97_parse_pinctl(struct device *dev,
2177 struct snd_ac97_reset_cfg *cfg)
2178{
2179 struct pinctrl *p;
2180 struct pinctrl_state *state;
2181 int gpio;
2182 int ret;
2183
2184 p = devm_pinctrl_get(dev);
2185 if (IS_ERR(p)) {
2186 dev_err(dev, "Failed to get pinctrl\n");
b7580cde 2187 return PTR_ERR(p);
741a509f
MP		 2188 }
2189 cfg->pctl = p;
2190
2191 state = pinctrl_lookup_state(p, "ac97-reset");
2192 if (IS_ERR(state)) {
2193 dev_err(dev, "Can't find pinctrl state ac97-reset\n");
b7580cde 2194 return PTR_ERR(state);
741a509f
MP		 2195 }
2196 cfg->pstate_reset = state;
2197
2198 state = pinctrl_lookup_state(p, "ac97-warm-reset");
2199 if (IS_ERR(state)) {
2200 dev_err(dev, "Can't find pinctrl state ac97-warm-reset\n");
b7580cde 2201 return PTR_ERR(state);
741a509f
MP		 2202 }
2203 cfg->pstate_warm_reset = state;
2204
2205 state = pinctrl_lookup_state(p, "ac97-running");
2206 if (IS_ERR(state)) {
2207 dev_err(dev, "Can't find pinctrl state ac97-running\n");
b7580cde 2208 return PTR_ERR(state);
741a509f
MP		 2209 }
2210 cfg->pstate_run = state;
2211
2212 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 0);
2213 if (gpio < 0) {
2214 dev_err(dev, "Can't find ac97-sync gpio\n");
2215 return gpio;
2216 }
2217 ret = devm_gpio_request(dev, gpio, "AC97 link sync");
2218 if (ret) {
2219 dev_err(dev, "Failed requesting ac97-sync gpio\n");
2220 return ret;
2221 }
2222 cfg->gpio_sync = gpio;
2223
2224 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 1);
2225 if (gpio < 0) {
2226 dev_err(dev, "Can't find ac97-sdata gpio %d\n", gpio);
2227 return gpio;
2228 }
2229 ret = devm_gpio_request(dev, gpio, "AC97 link sdata");
2230 if (ret) {
2231 dev_err(dev, "Failed requesting ac97-sdata gpio\n");
2232 return ret;
2233 }
2234 cfg->gpio_sdata = gpio;
2235
2236 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 2);
2237 if (gpio < 0) {
2238 dev_err(dev, "Can't find ac97-reset gpio\n");
2239 return gpio;
2240 }
2241 ret = devm_gpio_request(dev, gpio, "AC97 link reset");
2242 if (ret) {
2243 dev_err(dev, "Failed requesting ac97-reset gpio\n");
2244 return ret;
2245 }
2246 cfg->gpio_reset = gpio;
2247
2248 return 0;
2249}
2250
b047e1cc 2251struct snd_ac97_bus_ops *soc_ac97_ops;
f74b5e25 2252EXPORT_SYMBOL_GPL(soc_ac97_ops);
b047e1cc
MB		 2253
2254int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
2255{
2256 if (ops == soc_ac97_ops)
2257 return 0;
2258
2259 if (soc_ac97_ops && ops)
2260 return -EBUSY;
2261
2262 soc_ac97_ops = ops;
2263
2264 return 0;
2265}
2266EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops);
2267
741a509f
MP		 2268/**
2269 * snd_soc_set_ac97_ops_of_reset - Set ac97 ops with generic ac97 reset functions
2270 *
2271 * This function sets the reset and warm_reset properties of ops and parses
2272 * the device node of pdev to get pinctrl states and gpio numbers to use.
2273 */
2274int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
2275 struct platform_device *pdev)
2276{
2277 struct device *dev = &pdev->dev;
2278 struct snd_ac97_reset_cfg cfg;
2279 int ret;
2280
2281 ret = snd_soc_ac97_parse_pinctl(dev, &cfg);
2282 if (ret)
2283 return ret;
2284
2285 ret = snd_soc_set_ac97_ops(ops);
2286 if (ret)
2287 return ret;
2288
2289 ops->warm_reset = snd_soc_ac97_warm_reset;
2290 ops->reset = snd_soc_ac97_reset;
2291
2292 snd_ac97_rst_cfg = cfg;
2293 return 0;
2294}
2295EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops_of_reset);
2296
db2a4165
FM		 2297/**
2298 * snd_soc_free_ac97_codec - free AC97 codec device
2299 * @codec: audio codec
2300 *
2301 * Frees AC97 codec device resources.
2302 */
2303void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
2304{
2305 mutex_lock(&codec->mutex);
f0fba2ad 2306#ifdef CONFIG_SND_SOC_AC97_BUS
02c9c7b9 2307 soc_unregister_ac97_codec(codec);
f0fba2ad 2308#endif
db2a4165
FM		 2309 kfree(codec->ac97->bus);
2310 kfree(codec->ac97);
2311 codec->ac97 = NULL;
0562f788 2312 codec->ac97_created = 0;
db2a4165
FM		 2313 mutex_unlock(&codec->mutex);
2314}
2315EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
2316
db2a4165
FM		 2317/**
2318 * snd_soc_cnew - create new control
2319 * @_template: control template
2320 * @data: control private data
ac11a2b3 2321 * @long_name: control long name
efb7ac3f 2322 * @prefix: control name prefix
db2a4165
FM		 2323 *
2324 * Create a new mixer control from a template control.
2325 *
2326 * Returns 0 for success, else error.
2327 */
2328struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
3056557f 2329 void *data, const char *long_name,
efb7ac3f 2330 const char *prefix)
db2a4165
FM		 2331{
2332 struct snd_kcontrol_new template;
efb7ac3f
MB		 2333 struct snd_kcontrol *kcontrol;
2334 char *name = NULL;
db2a4165
FM		 2335
2336 memcpy(&template, _template, sizeof(template));
db2a4165
FM		 2337 template.index = 0;
2338
efb7ac3f
MB		 2339 if (!long_name)
2340 long_name = template.name;
2341
2342 if (prefix) {
2b581074 2343 name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name);
efb7ac3f
MB		 2344 if (!name)
2345 return NULL;
2346
efb7ac3f
MB		 2347 template.name = name;
2348 } else {
2349 template.name = long_name;
2350 }
2351
2352 kcontrol = snd_ctl_new1(&template, data);
2353
2354 kfree(name);
2355
2356 return kcontrol;
db2a4165
FM		 2357}
2358EXPORT_SYMBOL_GPL(snd_soc_cnew);
2359
022658be
LG		 2360static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2361 const struct snd_kcontrol_new *controls, int num_controls,
2362 const char *prefix, void *data)
2363{
2364 int err, i;
2365
2366 for (i = 0; i < num_controls; i++) {
2367 const struct snd_kcontrol_new *control = &controls[i];
2368 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2369 control->name, prefix));
2370 if (err < 0) {
f110bfc7
LG		 2371 dev_err(dev, "ASoC: Failed to add %s: %d\n",
2372 control->name, err);
022658be
LG		 2373 return err;
2374 }
2375 }
2376
2377 return 0;
2378}
2379
4fefd698
DP		 2380struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
2381 const char *name)
2382{
2383 struct snd_card *card = soc_card->snd_card;
2384 struct snd_kcontrol *kctl;
2385
2386 if (unlikely(!name))
2387 return NULL;
2388
2389 list_for_each_entry(kctl, &card->controls, list)
2390 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name)))
2391 return kctl;
2392 return NULL;
2393}
2394EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol);
2395
0f2780ad
LPC		 2396/**
2397 * snd_soc_add_component_controls - Add an array of controls to a component.
2398 *
2399 * @component: Component to add controls to
2400 * @controls: Array of controls to add
2401 * @num_controls: Number of elements in the array
2402 *
2403 * Return: 0 for success, else error.
2404 */
2405int snd_soc_add_component_controls(struct snd_soc_component *component,
2406 const struct snd_kcontrol_new *controls, unsigned int num_controls)
2407{
2408 struct snd_card *card = component->card->snd_card;
2409
2410 return snd_soc_add_controls(card, component->dev, controls,
2411 num_controls, component->name_prefix, component);
2412}
2413EXPORT_SYMBOL_GPL(snd_soc_add_component_controls);
2414
3e8e1952 2415/**
022658be
LG		 2416 * snd_soc_add_codec_controls - add an array of controls to a codec.
2417 * Convenience function to add a list of controls. Many codecs were
3e8e1952
IM		 2418 * duplicating this code.
2419 *
2420 * @codec: codec to add controls to
2421 * @controls: array of controls to add
2422 * @num_controls: number of elements in the array
2423 *
2424 * Return 0 for success, else error.
2425 */
022658be 2426int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
0f2780ad 2427 const struct snd_kcontrol_new *controls, unsigned int num_controls)
3e8e1952 2428{
0f2780ad
LPC		 2429 return snd_soc_add_component_controls(&codec->component, controls,
2430 num_controls);
3e8e1952 2431}
022658be 2432EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
3e8e1952 2433
a491a5c8
LG		 2434/**
2435 * snd_soc_add_platform_controls - add an array of controls to a platform.
022658be 2436 * Convenience function to add a list of controls.
a491a5c8
LG		 2437 *
2438 * @platform: platform to add controls to
2439 * @controls: array of controls to add
2440 * @num_controls: number of elements in the array
2441 *
2442 * Return 0 for success, else error.
2443 */
2444int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
0f2780ad 2445 const struct snd_kcontrol_new *controls, unsigned int num_controls)
a491a5c8 2446{
0f2780ad
LPC		 2447 return snd_soc_add_component_controls(&platform->component, controls,
2448 num_controls);
a491a5c8
LG		 2449}
2450EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2451
022658be
LG		 2452/**
2453 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2454 * Convenience function to add a list of controls.
2455 *
2456 * @soc_card: SoC card to add controls to
2457 * @controls: array of controls to add
2458 * @num_controls: number of elements in the array
2459 *
2460 * Return 0 for success, else error.
2461 */
2462int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2463 const struct snd_kcontrol_new *controls, int num_controls)
2464{
2465 struct snd_card *card = soc_card->snd_card;
2466
2467 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2468 NULL, soc_card);
2469}
2470EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2471
2472/**
2473 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2474 * Convienience function to add a list of controls.
2475 *
2476 * @dai: DAI to add controls to
2477 * @controls: array of controls to add
2478 * @num_controls: number of elements in the array
2479 *
2480 * Return 0 for success, else error.
2481 */
2482int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2483 const struct snd_kcontrol_new *controls, int num_controls)
2484{
2485 struct snd_card *card = dai->card->snd_card;
2486
2487 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2488 NULL, dai);
2489}
2490EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2491
db2a4165
FM		 2492/**
2493 * snd_soc_info_enum_double - enumerated double mixer info callback
2494 * @kcontrol: mixer control
2495 * @uinfo: control element information
2496 *
2497 * Callback to provide information about a double enumerated
2498 * mixer control.
2499 *
2500 * Returns 0 for success.
2501 */
2502int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2503 struct snd_ctl_elem_info *uinfo)
2504{
2505 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2506
2507 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2508 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
9a8d38db 2509 uinfo->value.enumerated.items = e->items;
db2a4165 2510
9a8d38db
TI		 2511 if (uinfo->value.enumerated.item >= e->items)
2512 uinfo->value.enumerated.item = e->items - 1;
a19685cb
TI		 2513 strlcpy(uinfo->value.enumerated.name,
2514 e->texts[uinfo->value.enumerated.item],
2515 sizeof(uinfo->value.enumerated.name));
db2a4165
FM		 2516 return 0;
2517}
2518EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2519
2520/**
2521 * snd_soc_get_enum_double - enumerated double mixer get callback
2522 * @kcontrol: mixer control
ac11a2b3 2523 * @ucontrol: control element information
db2a4165
FM		 2524 *
2525 * Callback to get the value of a double enumerated mixer.
2526 *
2527 * Returns 0 for success.
2528 */
2529int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2530 struct snd_ctl_elem_value *ucontrol)
2531{
907fe36a 2532 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
db2a4165 2533 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
29ae2fa5
LPC		 2534 unsigned int val, item;
2535 unsigned int reg_val;
907fe36a 2536 int ret;
db2a4165 2537
907fe36a
LPC		 2538 ret = snd_soc_component_read(component, e->reg, &reg_val);
2539 if (ret)
2540 return ret;
29ae2fa5
LPC		 2541 val = (reg_val >> e->shift_l) & e->mask;
2542 item = snd_soc_enum_val_to_item(e, val);
2543 ucontrol->value.enumerated.item[0] = item;
2544 if (e->shift_l != e->shift_r) {
2545 val = (reg_val >> e->shift_l) & e->mask;
2546 item = snd_soc_enum_val_to_item(e, val);
2547 ucontrol->value.enumerated.item[1] = item;
2548 }
db2a4165
FM		 2549
2550 return 0;
2551}
2552EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2553
2554/**
2555 * snd_soc_put_enum_double - enumerated double mixer put callback
2556 * @kcontrol: mixer control
ac11a2b3 2557 * @ucontrol: control element information
db2a4165
FM		 2558 *
2559 * Callback to set the value of a double enumerated mixer.
2560 *
2561 * Returns 0 for success.
2562 */
2563int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2564 struct snd_ctl_elem_value *ucontrol)
2565{
907fe36a 2566 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
db2a4165 2567 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
29ae2fa5 2568 unsigned int *item = ucontrol->value.enumerated.item;
46f5822f 2569 unsigned int val;
86767b7d 2570 unsigned int mask;
db2a4165 2571
29ae2fa5 2572 if (item[0] >= e->items)
db2a4165 2573 return -EINVAL;
29ae2fa5 2574 val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
86767b7d 2575 mask = e->mask << e->shift_l;
db2a4165 2576 if (e->shift_l != e->shift_r) {
29ae2fa5 2577 if (item[1] >= e->items)
db2a4165 2578 return -EINVAL;
29ae2fa5 2579 val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
86767b7d 2580 mask |= e->mask << e->shift_r;
db2a4165
FM		 2581 }
2582
907fe36a 2583 return snd_soc_component_update_bits(component, e->reg, mask, val);
db2a4165
FM		 2584}
2585EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2586
2e72f8e3 2587/**
f227b88f 2588 * snd_soc_read_signed - Read a codec register and interprete as signed value
907fe36a 2589 * @component: component
f227b88f
MP		 2590 * @reg: Register to read
2591 * @mask: Mask to use after shifting the register value
2592 * @shift: Right shift of register value
2593 * @sign_bit: Bit that describes if a number is negative or not.
907fe36a 2594 * @signed_val: Pointer to where the read value should be stored
2e72f8e3 2595 *
f227b88f
MP		 2596 * This functions reads a codec register. The register value is shifted right
2597 * by 'shift' bits and masked with the given 'mask'. Afterwards it translates
2598 * the given registervalue into a signed integer if sign_bit is non-zero.
2e72f8e3 2599 *
907fe36a 2600 * Returns 0 on sucess, otherwise an error value
2e72f8e3 2601 */
907fe36a
LPC		 2602static int snd_soc_read_signed(struct snd_soc_component *component,
2603 unsigned int reg, unsigned int mask, unsigned int shift,
2604 unsigned int sign_bit, int *signed_val)
2e72f8e3 2605{
f227b88f
MP		 2606 int ret;
2607 unsigned int val;
2e72f8e3 2608
907fe36a
LPC		 2609 ret = snd_soc_component_read(component, reg, &val);
2610 if (ret < 0)
2611 return ret;
2612
2613 val = (val >> shift) & mask;
2e72f8e3 2614
907fe36a
LPC		 2615 if (!sign_bit) {
2616 *signed_val = val;
2617 return 0;
2618 }
2e72f8e3 2619
f227b88f 2620 /* non-negative number */
907fe36a
LPC		 2621 if (!(val & BIT(sign_bit))) {
2622 *signed_val = val;
2623 return 0;
2624 }
2e72f8e3 2625
f227b88f 2626 ret = val;
2e72f8e3 2627
f227b88f
MP		 2628 /*
2629 * The register most probably does not contain a full-sized int.
2630 * Instead we have an arbitrary number of bits in a signed
2631 * representation which has to be translated into a full-sized int.
2632 * This is done by filling up all bits above the sign-bit.
2633 */
2634 ret |= ~((int)(BIT(sign_bit) - 1));
2635
907fe36a
LPC		 2636 *signed_val = ret;
2637
2638 return 0;
2e72f8e3 2639}
2e72f8e3 2640
db2a4165
FM		 2641/**
2642 * snd_soc_info_volsw - single mixer info callback
2643 * @kcontrol: mixer control
2644 * @uinfo: control element information
2645 *
e8f5a103
PU		 2646 * Callback to provide information about a single mixer control, or a double
2647 * mixer control that spans 2 registers.
db2a4165
FM		 2648 *
2649 * Returns 0 for success.
2650 */
2651int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2652 struct snd_ctl_elem_info *uinfo)
2653{
4eaa9819
JS		 2654 struct soc_mixer_control *mc =
2655 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2656 int platform_max;
db2a4165 2657
d11bb4a9
PU		 2658 if (!mc->platform_max)
2659 mc->platform_max = mc->max;
2660 platform_max = mc->platform_max;
2661
2662 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2663 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2664 else
2665 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2666
e8f5a103 2667 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
db2a4165 2668 uinfo->value.integer.min = 0;
f227b88f 2669 uinfo->value.integer.max = platform_max - mc->min;
db2a4165
FM		 2670 return 0;
2671}
2672EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2673
2674/**
2675 * snd_soc_get_volsw - single mixer get callback
2676 * @kcontrol: mixer control
ac11a2b3 2677 * @ucontrol: control element information
db2a4165 2678 *
f7915d99
PU		 2679 * Callback to get the value of a single mixer control, or a double mixer
2680 * control that spans 2 registers.
db2a4165
FM		 2681 *
2682 * Returns 0 for success.
2683 */
2684int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2685 struct snd_ctl_elem_value *ucontrol)
2686{
907fe36a 2687 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
4eaa9819
JS		 2688 struct soc_mixer_control *mc =
2689 (struct soc_mixer_control *)kcontrol->private_value;
815ecf8d 2690 unsigned int reg = mc->reg;
f7915d99 2691 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2692 unsigned int shift = mc->shift;
2693 unsigned int rshift = mc->rshift;
4eaa9819 2694 int max = mc->max;
f227b88f
MP		 2695 int min = mc->min;
2696 int sign_bit = mc->sign_bit;
815ecf8d
JS		 2697 unsigned int mask = (1 << fls(max)) - 1;
2698 unsigned int invert = mc->invert;
907fe36a
LPC		 2699 int val;
2700 int ret;
db2a4165 2701
f227b88f
MP		 2702 if (sign_bit)
2703 mask = BIT(sign_bit + 1) - 1;
2704
907fe36a
LPC		 2705 ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val);
2706 if (ret)
2707 return ret;
2708
2709 ucontrol->value.integer.value[0] = val - min;
f7915d99 2710 if (invert)
db2a4165 2711 ucontrol->value.integer.value[0] =
a7a4ac86 2712 max - ucontrol->value.integer.value[0];
f7915d99
PU		 2713
2714 if (snd_soc_volsw_is_stereo(mc)) {
2715 if (reg == reg2)
907fe36a
LPC		 2716 ret = snd_soc_read_signed(component, reg, mask, rshift,
2717 sign_bit, &val);
f7915d99 2718 else
907fe36a
LPC		 2719 ret = snd_soc_read_signed(component, reg2, mask, shift,
2720 sign_bit, &val);
2721 if (ret)
2722 return ret;
2723
2724 ucontrol->value.integer.value[1] = val - min;
f7915d99 2725 if (invert)
db2a4165 2726 ucontrol->value.integer.value[1] =
a7a4ac86 2727 max - ucontrol->value.integer.value[1];
db2a4165
FM		 2728 }
2729
2730 return 0;
2731}
2732EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2733
2734/**
2735 * snd_soc_put_volsw - single mixer put callback
2736 * @kcontrol: mixer control
ac11a2b3 2737 * @ucontrol: control element information
db2a4165 2738 *
974815ba
PU		 2739 * Callback to set the value of a single mixer control, or a double mixer
2740 * control that spans 2 registers.
db2a4165
FM		 2741 *
2742 * Returns 0 for success.
2743 */
2744int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2745 struct snd_ctl_elem_value *ucontrol)
2746{
907fe36a 2747 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
4eaa9819
JS		 2748 struct soc_mixer_control *mc =
2749 (struct soc_mixer_control *)kcontrol->private_value;
815ecf8d 2750 unsigned int reg = mc->reg;
974815ba 2751 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2752 unsigned int shift = mc->shift;
2753 unsigned int rshift = mc->rshift;
4eaa9819 2754 int max = mc->max;
f227b88f
MP		 2755 int min = mc->min;
2756 unsigned int sign_bit = mc->sign_bit;
815ecf8d
JS		 2757 unsigned int mask = (1 << fls(max)) - 1;
2758 unsigned int invert = mc->invert;
974815ba 2759 int err;
939d9f16 2760 bool type_2r = false;
974815ba
PU		 2761 unsigned int val2 = 0;
2762 unsigned int val, val_mask;
db2a4165 2763
f227b88f
MP		 2764 if (sign_bit)
2765 mask = BIT(sign_bit + 1) - 1;
2766
2767 val = ((ucontrol->value.integer.value[0] + min) & mask);
db2a4165 2768 if (invert)
a7a4ac86 2769 val = max - val;
db2a4165
FM		 2770 val_mask = mask << shift;
2771 val = val << shift;
974815ba 2772 if (snd_soc_volsw_is_stereo(mc)) {
f227b88f 2773 val2 = ((ucontrol->value.integer.value[1] + min) & mask);
db2a4165 2774 if (invert)
a7a4ac86 2775 val2 = max - val2;
974815ba
PU		 2776 if (reg == reg2) {
2777 val_mask |= mask << rshift;
2778 val |= val2 << rshift;
2779 } else {
2780 val2 = val2 << shift;
939d9f16 2781 type_2r = true;
974815ba 2782 }
db2a4165 2783 }
907fe36a 2784 err = snd_soc_component_update_bits(component, reg, val_mask, val);
3ff3f64b 2785 if (err < 0)
db2a4165
FM		 2786 return err;
2787
974815ba 2788 if (type_2r)
907fe36a
LPC		 2789 err = snd_soc_component_update_bits(component, reg2, val_mask,
2790 val2);
974815ba 2791
db2a4165
FM		 2792 return err;
2793}
974815ba 2794EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
db2a4165 2795
1d99f243
BA		 2796/**
2797 * snd_soc_get_volsw_sx - single mixer get callback
2798 * @kcontrol: mixer control
2799 * @ucontrol: control element information
2800 *
2801 * Callback to get the value of a single mixer control, or a double mixer
2802 * control that spans 2 registers.
2803 *
2804 * Returns 0 for success.
2805 */
2806int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
2807 struct snd_ctl_elem_value *ucontrol)
2808{
907fe36a 2809 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
1d99f243
BA		 2810 struct soc_mixer_control *mc =
2811 (struct soc_mixer_control *)kcontrol->private_value;
1d99f243
BA		 2812 unsigned int reg = mc->reg;
2813 unsigned int reg2 = mc->rreg;
2814 unsigned int shift = mc->shift;
2815 unsigned int rshift = mc->rshift;
2816 int max = mc->max;
2817 int min = mc->min;
2818 int mask = (1 << (fls(min + max) - 1)) - 1;
907fe36a
LPC		 2819 unsigned int val;
2820 int ret;
1d99f243 2821
907fe36a
LPC		 2822 ret = snd_soc_component_read(component, reg, &val);
2823 if (ret < 0)
2824 return ret;
1d99f243 2825
907fe36a
LPC		 2826 ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask;
2827
2828 if (snd_soc_volsw_is_stereo(mc)) {
2829 ret = snd_soc_component_read(component, reg2, &val);
2830 if (ret < 0)
2831 return ret;
2832
2833 val = ((val >> rshift) - min) & mask;
2834 ucontrol->value.integer.value[1] = val;
2835 }
1d99f243
BA		 2836
2837 return 0;
2838}
2839EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
2840
2841/**
2842 * snd_soc_put_volsw_sx - double mixer set callback
2843 * @kcontrol: mixer control
2844 * @uinfo: control element information
2845 *
2846 * Callback to set the value of a double mixer control that spans 2 registers.
2847 *
2848 * Returns 0 for success.
2849 */
2850int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
2851 struct snd_ctl_elem_value *ucontrol)
2852{
907fe36a 2853 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
1d99f243
BA		 2854 struct soc_mixer_control *mc =
2855 (struct soc_mixer_control *)kcontrol->private_value;
2856
2857 unsigned int reg = mc->reg;
2858 unsigned int reg2 = mc->rreg;
2859 unsigned int shift = mc->shift;
2860 unsigned int rshift = mc->rshift;
2861 int max = mc->max;
2862 int min = mc->min;
2863 int mask = (1 << (fls(min + max) - 1)) - 1;
27f1d759 2864 int err = 0;
1a39019e 2865 unsigned int val, val_mask, val2 = 0;
1d99f243
BA		 2866
2867 val_mask = mask << shift;
2868 val = (ucontrol->value.integer.value[0] + min) & mask;
2869 val = val << shift;
2870
907fe36a 2871 err = snd_soc_component_update_bits(component, reg, val_mask, val);
d055852e
MN		 2872 if (err < 0)
2873 return err;
1d99f243
BA		 2874
2875 if (snd_soc_volsw_is_stereo(mc)) {
2876 val_mask = mask << rshift;
2877 val2 = (ucontrol->value.integer.value[1] + min) & mask;
2878 val2 = val2 << rshift;
2879
907fe36a
LPC		 2880 err = snd_soc_component_update_bits(component, reg2, val_mask,
2881 val2);
1d99f243 2882 }
907fe36a 2883 return err;
1d99f243
BA		 2884}
2885EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
2886
e13ac2e9
MB		 2887/**
2888 * snd_soc_info_volsw_s8 - signed mixer info callback
2889 * @kcontrol: mixer control
2890 * @uinfo: control element information
2891 *
2892 * Callback to provide information about a signed mixer control.
2893 *
2894 * Returns 0 for success.
2895 */
2896int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2897 struct snd_ctl_elem_info *uinfo)
2898{
4eaa9819
JS		 2899 struct soc_mixer_control *mc =
2900 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2901 int platform_max;
4eaa9819 2902 int min = mc->min;
e13ac2e9 2903
d11bb4a9
PU		 2904 if (!mc->platform_max)
2905 mc->platform_max = mc->max;
2906 platform_max = mc->platform_max;
2907
e13ac2e9
MB		 2908 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2909 uinfo->count = 2;
2910 uinfo->value.integer.min = 0;
d11bb4a9 2911 uinfo->value.integer.max = platform_max - min;
e13ac2e9
MB		 2912 return 0;
2913}
2914EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2915
2916/**
2917 * snd_soc_get_volsw_s8 - signed mixer get callback
2918 * @kcontrol: mixer control
ac11a2b3 2919 * @ucontrol: control element information
e13ac2e9
MB		 2920 *
2921 * Callback to get the value of a signed mixer control.
2922 *
2923 * Returns 0 for success.
2924 */
2925int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2926 struct snd_ctl_elem_value *ucontrol)
2927{
4eaa9819
JS		 2928 struct soc_mixer_control *mc =
2929 (struct soc_mixer_control *)kcontrol->private_value;
907fe36a 2930 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
815ecf8d 2931 unsigned int reg = mc->reg;
907fe36a 2932 unsigned int val;
4eaa9819 2933 int min = mc->min;
907fe36a
LPC		 2934 int ret;
2935
2936 ret = snd_soc_component_read(component, reg, &val);
2937 if (ret)
2938 return ret;
e13ac2e9
MB		 2939
2940 ucontrol->value.integer.value[0] =
2941 ((signed char)(val & 0xff))-min;
2942 ucontrol->value.integer.value[1] =
2943 ((signed char)((val >> 8) & 0xff))-min;
2944 return 0;
2945}
2946EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2947
2948/**
2949 * snd_soc_put_volsw_sgn - signed mixer put callback
2950 * @kcontrol: mixer control
ac11a2b3 2951 * @ucontrol: control element information
e13ac2e9
MB		 2952 *
2953 * Callback to set the value of a signed mixer control.
2954 *
2955 * Returns 0 for success.
2956 */
2957int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
2958 struct snd_ctl_elem_value *ucontrol)
2959{
4eaa9819
JS		 2960 struct soc_mixer_control *mc =
2961 (struct soc_mixer_control *)kcontrol->private_value;
907fe36a 2962 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
815ecf8d 2963 unsigned int reg = mc->reg;
4eaa9819 2964 int min = mc->min;
46f5822f 2965 unsigned int val;
e13ac2e9
MB		 2966
2967 val = (ucontrol->value.integer.value[0]+min) & 0xff;
2968 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
2969
907fe36a 2970 return snd_soc_component_update_bits(component, reg, 0xffff, val);
e13ac2e9
MB		 2971}
2972EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
2973
6c9d8cf6
AT		 2974/**
2975 * snd_soc_info_volsw_range - single mixer info callback with range.
2976 * @kcontrol: mixer control
2977 * @uinfo: control element information
2978 *
2979 * Callback to provide information, within a range, about a single
2980 * mixer control.
2981 *
2982 * returns 0 for success.
2983 */
2984int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
2985 struct snd_ctl_elem_info *uinfo)
2986{
2987 struct soc_mixer_control *mc =
2988 (struct soc_mixer_control *)kcontrol->private_value;
2989 int platform_max;
2990 int min = mc->min;
2991
2992 if (!mc->platform_max)
2993 mc->platform_max = mc->max;
2994 platform_max = mc->platform_max;
2995
2996 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
9bde4f0b 2997 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
6c9d8cf6
AT		 2998 uinfo->value.integer.min = 0;
2999 uinfo->value.integer.max = platform_max - min;
3000
3001 return 0;
3002}
3003EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
3004
3005/**
3006 * snd_soc_put_volsw_range - single mixer put value callback with range.
3007 * @kcontrol: mixer control
3008 * @ucontrol: control element information
3009 *
3010 * Callback to set the value, within a range, for a single mixer control.
3011 *
3012 * Returns 0 for success.
3013 */
3014int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
3015 struct snd_ctl_elem_value *ucontrol)
3016{
3017 struct soc_mixer_control *mc =
3018 (struct soc_mixer_control *)kcontrol->private_value;
907fe36a 3019 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
6c9d8cf6 3020 unsigned int reg = mc->reg;
9bde4f0b 3021 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 3022 unsigned int shift = mc->shift;
3023 int min = mc->min;
3024 int max = mc->max;
3025 unsigned int mask = (1 << fls(max)) - 1;
3026 unsigned int invert = mc->invert;
3027 unsigned int val, val_mask;
9bde4f0b 3028 int ret;
6c9d8cf6
AT		 3029
3030 val = ((ucontrol->value.integer.value[0] + min) & mask);
3031 if (invert)
3032 val = max - val;
3033 val_mask = mask << shift;
3034 val = val << shift;
3035
907fe36a 3036 ret = snd_soc_component_update_bits(component, reg, val_mask, val);
0eaa6cca 3037 if (ret < 0)
9bde4f0b
MB		 3038 return ret;
3039
3040 if (snd_soc_volsw_is_stereo(mc)) {
3041 val = ((ucontrol->value.integer.value[1] + min) & mask);
3042 if (invert)
3043 val = max - val;
3044 val_mask = mask << shift;
3045 val = val << shift;
3046
907fe36a
LPC		 3047 ret = snd_soc_component_update_bits(component, rreg, val_mask,
3048 val);
9bde4f0b
MB		 3049 }
3050
3051 return ret;
6c9d8cf6
AT		 3052}
3053EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
3054
3055/**
3056 * snd_soc_get_volsw_range - single mixer get callback with range
3057 * @kcontrol: mixer control
3058 * @ucontrol: control element information
3059 *
3060 * Callback to get the value, within a range, of a single mixer control.
3061 *
3062 * Returns 0 for success.
3063 */
3064int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
3065 struct snd_ctl_elem_value *ucontrol)
3066{
907fe36a 3067 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
6c9d8cf6
AT		 3068 struct soc_mixer_control *mc =
3069 (struct soc_mixer_control *)kcontrol->private_value;
6c9d8cf6 3070 unsigned int reg = mc->reg;
9bde4f0b 3071 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 3072 unsigned int shift = mc->shift;
3073 int min = mc->min;
3074 int max = mc->max;
3075 unsigned int mask = (1 << fls(max)) - 1;
3076 unsigned int invert = mc->invert;
907fe36a
LPC		 3077 unsigned int val;
3078 int ret;
6c9d8cf6 3079
907fe36a
LPC		 3080 ret = snd_soc_component_read(component, reg, &val);
3081 if (ret)
3082 return ret;
3083
3084 ucontrol->value.integer.value[0] = (val >> shift) & mask;
6c9d8cf6
AT		 3085 if (invert)
3086 ucontrol->value.integer.value[0] =
3087 max - ucontrol->value.integer.value[0];
3088 ucontrol->value.integer.value[0] =
3089 ucontrol->value.integer.value[0] - min;
3090
9bde4f0b 3091 if (snd_soc_volsw_is_stereo(mc)) {
907fe36a
LPC		 3092 ret = snd_soc_component_read(component, rreg, &val);
3093 if (ret)
3094 return ret;
3095
3096 ucontrol->value.integer.value[1] = (val >> shift) & mask;
9bde4f0b
MB		 3097 if (invert)
3098 ucontrol->value.integer.value[1] =
3099 max - ucontrol->value.integer.value[1];
3100 ucontrol->value.integer.value[1] =
3101 ucontrol->value.integer.value[1] - min;
3102 }
3103
6c9d8cf6
AT		 3104 return 0;
3105}
3106EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
3107
637d3847
PU		 3108/**
3109 * snd_soc_limit_volume - Set new limit to an existing volume control.
3110 *
3111 * @codec: where to look for the control
3112 * @name: Name of the control
3113 * @max: new maximum limit
3114 *
3115 * Return 0 for success, else error.
3116 */
3117int snd_soc_limit_volume(struct snd_soc_codec *codec,
3118 const char *name, int max)
3119{
00200107 3120 struct snd_card *card = codec->component.card->snd_card;
637d3847
PU		 3121 struct snd_kcontrol *kctl;
3122 struct soc_mixer_control *mc;
3123 int found = 0;
3124 int ret = -EINVAL;
3125
3126 /* Sanity check for name and max */
3127 if (unlikely(!name || max <= 0))
3128 return -EINVAL;
3129
3130 list_for_each_entry(kctl, &card->controls, list) {
3131 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
3132 found = 1;
3133 break;
3134 }
3135 }
3136 if (found) {
3137 mc = (struct soc_mixer_control *)kctl->private_value;
3138 if (max <= mc->max) {
d11bb4a9 3139 mc->platform_max = max;
637d3847
PU		 3140 ret = 0;
3141 }
3142 }
3143 return ret;
3144}
3145EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
3146
71d08516
MB		 3147int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
3148 struct snd_ctl_elem_info *uinfo)
3149{
907fe36a 3150 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
71d08516
MB		 3151 struct soc_bytes *params = (void *)kcontrol->private_value;
3152
3153 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
907fe36a 3154 uinfo->count = params->num_regs * component->val_bytes;
71d08516
MB		 3155
3156 return 0;
3157}
3158EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
3159
3160int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
3161 struct snd_ctl_elem_value *ucontrol)
3162{
907fe36a 3163 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
71d08516 3164 struct soc_bytes *params = (void *)kcontrol->private_value;
71d08516
MB		 3165 int ret;
3166
907fe36a
LPC		 3167 if (component->regmap)
3168 ret = regmap_raw_read(component->regmap, params->base,
71d08516 3169 ucontrol->value.bytes.data,
907fe36a 3170 params->num_regs * component->val_bytes);
71d08516
MB		 3171 else
3172 ret = -EINVAL;
3173
f831b055
MB		 3174 /* Hide any masked bytes to ensure consistent data reporting */
3175 if (ret == 0 && params->mask) {
907fe36a 3176 switch (component->val_bytes) {
f831b055
MB		 3177 case 1:
3178 ucontrol->value.bytes.data[0] &= ~params->mask;
3179 break;
3180 case 2:
3181 ((u16 *)(&ucontrol->value.bytes.data))[0]
8f1ec93a 3182 &= cpu_to_be16(~params->mask);
f831b055
MB		 3183 break;
3184 case 4:
3185 ((u32 *)(&ucontrol->value.bytes.data))[0]
8f1ec93a 3186 &= cpu_to_be32(~params->mask);
f831b055
MB		 3187 break;
3188 default:
3189 return -EINVAL;
3190 }
3191 }
3192
71d08516
MB		 3193 return ret;
3194}
3195EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
3196
3197int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
3198 struct snd_ctl_elem_value *ucontrol)
3199{
907fe36a 3200 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
71d08516 3201 struct soc_bytes *params = (void *)kcontrol->private_value;
f831b055 3202 int ret, len;
a1a564ed 3203 unsigned int val, mask;
f831b055 3204 void *data;
71d08516 3205
907fe36a 3206 if (!component->regmap)
f831b055
MB		 3207 return -EINVAL;
3208
907fe36a 3209 len = params->num_regs * component->val_bytes;
f831b055 3210
b5a8fe43
MB		 3211 data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
3212 if (!data)
3213 return -ENOMEM;
3214
f831b055
MB		 3215 /*
3216 * If we've got a mask then we need to preserve the register
3217 * bits. We shouldn't modify the incoming data so take a
3218 * copy.
3219 */
3220 if (params->mask) {
907fe36a 3221 ret = regmap_read(component->regmap, params->base, &val);
f831b055 3222 if (ret != 0)
e8b18add 3223 goto out;
f831b055
MB		 3224
3225 val &= params->mask;
3226
907fe36a 3227 switch (component->val_bytes) {
f831b055
MB		 3228 case 1:
3229 ((u8 *)data)[0] &= ~params->mask;
3230 ((u8 *)data)[0] |= val;
3231 break;
3232 case 2:
a1a564ed 3233 mask = ~params->mask;
907fe36a 3234 ret = regmap_parse_val(component->regmap,
a1a564ed
NC		 3235 &mask, &mask);
3236 if (ret != 0)
3237 goto out;
3238
3239 ((u16 *)data)[0] &= mask;
3240
907fe36a 3241 ret = regmap_parse_val(component->regmap,
a1a564ed
NC		 3242 &val, &val);
3243 if (ret != 0)
3244 goto out;
3245
3246 ((u16 *)data)[0] |= val;
f831b055
MB		 3247 break;
3248 case 4:
a1a564ed 3249 mask = ~params->mask;
907fe36a 3250 ret = regmap_parse_val(component->regmap,
a1a564ed
NC		 3251 &mask, &mask);
3252 if (ret != 0)
3253 goto out;
3254
3255 ((u32 *)data)[0] &= mask;
3256
907fe36a 3257 ret = regmap_parse_val(component->regmap,
a1a564ed
NC		 3258 &val, &val);
3259 if (ret != 0)
3260 goto out;
3261
3262 ((u32 *)data)[0] |= val;
f831b055
MB		 3263 break;
3264 default:
e8b18add
WY		 3265 ret = -EINVAL;
3266 goto out;
f831b055
MB		 3267 }
3268 }
3269
907fe36a 3270 ret = regmap_raw_write(component->regmap, params->base,
f831b055
MB		 3271 data, len);
3272
e8b18add 3273out:
b5a8fe43 3274 kfree(data);
71d08516
MB		 3275
3276 return ret;
3277}
3278EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
3279
d9881208
VK		 3280int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
3281 struct snd_ctl_elem_info *ucontrol)
3282{
3283 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
3284
3285 ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES;
3286 ucontrol->count = params->max;
3287
3288 return 0;
3289}
3290EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext);
3291
7523a271
OMA		 3292int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
3293 unsigned int size, unsigned int __user *tlv)
3294{
3295 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
3296 unsigned int count = size < params->max ? size : params->max;
3297 int ret = -ENXIO;
3298
3299 switch (op_flag) {
3300 case SNDRV_CTL_TLV_OP_READ:
3301 if (params->get)
3302 ret = params->get(tlv, count);
3303 break;
3304 case SNDRV_CTL_TLV_OP_WRITE:
3305 if (params->put)
3306 ret = params->put(tlv, count);
3307 break;
3308 }
3309 return ret;
3310}
3311EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback);
3312
4183eed2
KK		 3313/**
3314 * snd_soc_info_xr_sx - signed multi register info callback
3315 * @kcontrol: mreg control
3316 * @uinfo: control element information
3317 *
3318 * Callback to provide information of a control that can
3319 * span multiple codec registers which together
3320 * forms a single signed value in a MSB/LSB manner.
3321 *
3322 * Returns 0 for success.
3323 */
3324int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
3325 struct snd_ctl_elem_info *uinfo)
3326{
3327 struct soc_mreg_control *mc =
3328 (struct soc_mreg_control *)kcontrol->private_value;
3329 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3330 uinfo->count = 1;
3331 uinfo->value.integer.min = mc->min;
3332 uinfo->value.integer.max = mc->max;
3333
3334 return 0;
3335}
3336EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
3337
3338/**
3339 * snd_soc_get_xr_sx - signed multi register get callback
3340 * @kcontrol: mreg control
3341 * @ucontrol: control element information
3342 *
3343 * Callback to get the value of a control that can span
3344 * multiple codec registers which together forms a single
3345 * signed value in a MSB/LSB manner. The control supports
3346 * specifying total no of bits used to allow for bitfields
3347 * across the multiple codec registers.
3348 *
3349 * Returns 0 for success.
3350 */
3351int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
3352 struct snd_ctl_elem_value *ucontrol)
3353{
907fe36a 3354 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
4183eed2
KK		 3355 struct soc_mreg_control *mc =
3356 (struct soc_mreg_control *)kcontrol->private_value;
4183eed2
KK		 3357 unsigned int regbase = mc->regbase;
3358 unsigned int regcount = mc->regcount;
907fe36a 3359 unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
4183eed2
KK		 3360 unsigned int regwmask = (1<<regwshift)-1;
3361 unsigned int invert = mc->invert;
3362 unsigned long mask = (1UL<<mc->nbits)-1;
3363 long min = mc->min;
3364 long max = mc->max;
3365 long val = 0;
907fe36a 3366 unsigned int regval;
4183eed2 3367 unsigned int i;
907fe36a 3368 int ret;
4183eed2
KK		 3369
3370 for (i = 0; i < regcount; i++) {
907fe36a
LPC		 3371 ret = snd_soc_component_read(component, regbase+i, &regval);
3372 if (ret)
3373 return ret;
3374 val |= (regval & regwmask) << (regwshift*(regcount-i-1));
4183eed2
KK		 3375 }
3376 val &= mask;
3377 if (min < 0 && val > max)
3378 val |= ~mask;
3379 if (invert)
3380 val = max - val;
3381 ucontrol->value.integer.value[0] = val;
3382
3383 return 0;
3384}
3385EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
3386
3387/**
3388 * snd_soc_put_xr_sx - signed multi register get callback
3389 * @kcontrol: mreg control
3390 * @ucontrol: control element information
3391 *
3392 * Callback to set the value of a control that can span
3393 * multiple codec registers which together forms a single
3394 * signed value in a MSB/LSB manner. The control supports
3395 * specifying total no of bits used to allow for bitfields
3396 * across the multiple codec registers.
3397 *
3398 * Returns 0 for success.
3399 */
3400int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
3401 struct snd_ctl_elem_value *ucontrol)
3402{
907fe36a 3403 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
4183eed2
KK		 3404 struct soc_mreg_control *mc =
3405 (struct soc_mreg_control *)kcontrol->private_value;
4183eed2
KK		 3406 unsigned int regbase = mc->regbase;
3407 unsigned int regcount = mc->regcount;
907fe36a 3408 unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
4183eed2
KK		 3409 unsigned int regwmask = (1<<regwshift)-1;
3410 unsigned int invert = mc->invert;
3411 unsigned long mask = (1UL<<mc->nbits)-1;
4183eed2
KK		 3412 long max = mc->max;
3413 long val = ucontrol->value.integer.value[0];
3414 unsigned int i, regval, regmask;
3415 int err;
3416
3417 if (invert)
3418 val = max - val;
3419 val &= mask;
3420 for (i = 0; i < regcount; i++) {
3421 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
3422 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
907fe36a 3423 err = snd_soc_component_update_bits(component, regbase+i,
4183eed2
KK		 3424 regmask, regval);
3425 if (err < 0)
3426 return err;
3427 }
3428
3429 return 0;
3430}
3431EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
3432
dd7b10b3
KK		 3433/**
3434 * snd_soc_get_strobe - strobe get callback
3435 * @kcontrol: mixer control
3436 * @ucontrol: control element information
3437 *
3438 * Callback get the value of a strobe mixer control.
3439 *
3440 * Returns 0 for success.
3441 */
3442int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
3443 struct snd_ctl_elem_value *ucontrol)
3444{
907fe36a 3445 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
dd7b10b3
KK		 3446 struct soc_mixer_control *mc =
3447 (struct soc_mixer_control *)kcontrol->private_value;
dd7b10b3
KK		 3448 unsigned int reg = mc->reg;
3449 unsigned int shift = mc->shift;
3450 unsigned int mask = 1 << shift;
3451 unsigned int invert = mc->invert != 0;
907fe36a
LPC		 3452 unsigned int val;
3453 int ret;
3454
3455 ret = snd_soc_component_read(component, reg, &val);
3456 if (ret)
3457 return ret;
3458
3459 val &= mask;
dd7b10b3
KK		 3460
3461 if (shift != 0 && val != 0)
3462 val = val >> shift;
3463 ucontrol->value.enumerated.item[0] = val ^ invert;
3464
3465 return 0;
3466}
3467EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
3468
3469/**
3470 * snd_soc_put_strobe - strobe put callback
3471 * @kcontrol: mixer control
3472 * @ucontrol: control element information
3473 *
3474 * Callback strobe a register bit to high then low (or the inverse)
3475 * in one pass of a single mixer enum control.
3476 *
3477 * Returns 1 for success.
3478 */
3479int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
3480 struct snd_ctl_elem_value *ucontrol)
3481{
907fe36a 3482 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
dd7b10b3
KK		 3483 struct soc_mixer_control *mc =
3484 (struct soc_mixer_control *)kcontrol->private_value;
dd7b10b3
KK		 3485 unsigned int reg = mc->reg;
3486 unsigned int shift = mc->shift;
3487 unsigned int mask = 1 << shift;
3488 unsigned int invert = mc->invert != 0;
3489 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
3490 unsigned int val1 = (strobe ^ invert) ? mask : 0;
3491 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
3492 int err;
3493
907fe36a 3494 err = snd_soc_component_update_bits(component, reg, mask, val1);
dd7b10b3
KK		 3495 if (err < 0)
3496 return err;
3497
907fe36a 3498 return snd_soc_component_update_bits(component, reg, mask, val2);
dd7b10b3
KK		 3499}
3500EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
3501
8c6529db
LG		 3502/**
3503 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3504 * @dai: DAI
3505 * @clk_id: DAI specific clock ID
3506 * @freq: new clock frequency in Hz
3507 * @dir: new clock direction - input/output.
3508 *
3509 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3510 */
3511int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
3512 unsigned int freq, int dir)
3513{
f0fba2ad
LG		 3514 if (dai->driver && dai->driver->ops->set_sysclk)
3515 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
ec4ee52a 3516 else if (dai->codec && dai->codec->driver->set_sysclk)
da1c6ea6 3517 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
ec4ee52a 3518 freq, dir);
8c6529db 3519 else
1104a9c8 3520 return -ENOTSUPP;
8c6529db
LG		 3521}
3522EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
3523
ec4ee52a
MB		 3524/**
3525 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3526 * @codec: CODEC
3527 * @clk_id: DAI specific clock ID
da1c6ea6 3528 * @source: Source for the clock
ec4ee52a
MB		 3529 * @freq: new clock frequency in Hz
3530 * @dir: new clock direction - input/output.
3531 *
3532 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3533 */
3534int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
da1c6ea6 3535 int source, unsigned int freq, int dir)
ec4ee52a
MB		 3536{
3537 if (codec->driver->set_sysclk)
da1c6ea6
MB		 3538 return codec->driver->set_sysclk(codec, clk_id, source,
3539 freq, dir);
ec4ee52a 3540 else
1104a9c8 3541 return -ENOTSUPP;
ec4ee52a
MB		 3542}
3543EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
3544
8c6529db
LG		 3545/**
3546 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3547 * @dai: DAI
ac11a2b3 3548 * @div_id: DAI specific clock divider ID
8c6529db
LG		 3549 * @div: new clock divisor.
3550 *
3551 * Configures the clock dividers. This is used to derive the best DAI bit and
3552 * frame clocks from the system or master clock. It's best to set the DAI bit
3553 * and frame clocks as low as possible to save system power.
3554 */
3555int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
3556 int div_id, int div)
3557{
f0fba2ad
LG		 3558 if (dai->driver && dai->driver->ops->set_clkdiv)
3559 return dai->driver->ops->set_clkdiv(dai, div_id, div);
8c6529db
LG		 3560 else
3561 return -EINVAL;
3562}
3563EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
3564
3565/**
3566 * snd_soc_dai_set_pll - configure DAI PLL.
3567 * @dai: DAI
3568 * @pll_id: DAI specific PLL ID
85488037 3569 * @source: DAI specific source for the PLL
8c6529db
LG		 3570 * @freq_in: PLL input clock frequency in Hz
3571 * @freq_out: requested PLL output clock frequency in Hz
3572 *
3573 * Configures and enables PLL to generate output clock based on input clock.
3574 */
85488037
MB		 3575int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
3576 unsigned int freq_in, unsigned int freq_out)
8c6529db 3577{
f0fba2ad
LG		 3578 if (dai->driver && dai->driver->ops->set_pll)
3579 return dai->driver->ops->set_pll(dai, pll_id, source,
85488037 3580 freq_in, freq_out);
ec4ee52a
MB		 3581 else if (dai->codec && dai->codec->driver->set_pll)
3582 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
3583 freq_in, freq_out);
8c6529db
LG		 3584 else
3585 return -EINVAL;
3586}
3587EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
3588
ec4ee52a
MB		 3589/*
3590 * snd_soc_codec_set_pll - configure codec PLL.
3591 * @codec: CODEC
3592 * @pll_id: DAI specific PLL ID
3593 * @source: DAI specific source for the PLL
3594 * @freq_in: PLL input clock frequency in Hz
3595 * @freq_out: requested PLL output clock frequency in Hz
3596 *
3597 * Configures and enables PLL to generate output clock based on input clock.
3598 */
3599int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
3600 unsigned int freq_in, unsigned int freq_out)
3601{
3602 if (codec->driver->set_pll)
3603 return codec->driver->set_pll(codec, pll_id, source,
3604 freq_in, freq_out);
3605 else
3606 return -EINVAL;
3607}
3608EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
3609
e54cf76b
LG		 3610/**
3611 * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
3612 * @dai: DAI
3613 * @ratio Ratio of BCLK to Sample rate.
3614 *
3615 * Configures the DAI for a preset BCLK to sample rate ratio.
3616 */
3617int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
3618{
3619 if (dai->driver && dai->driver->ops->set_bclk_ratio)
3620 return dai->driver->ops->set_bclk_ratio(dai, ratio);
3621 else
3622 return -EINVAL;
3623}
3624EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
3625
8c6529db
LG		 3626/**
3627 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3628 * @dai: DAI
8c6529db
LG		 3629 * @fmt: SND_SOC_DAIFMT_ format value.
3630 *
3631 * Configures the DAI hardware format and clocking.
3632 */
3633int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
3634{
5e4ba569 3635 if (dai->driver == NULL)
8c6529db 3636 return -EINVAL;
5e4ba569
SG		 3637 if (dai->driver->ops->set_fmt == NULL)
3638 return -ENOTSUPP;
3639 return dai->driver->ops->set_fmt(dai, fmt);
8c6529db
LG		 3640}
3641EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
3642
89c67857 3643/**
e5c21514 3644 * snd_soc_xlate_tdm_slot - generate tx/rx slot mask.
89c67857
XL		 3645 * @slots: Number of slots in use.
3646 * @tx_mask: bitmask representing active TX slots.
3647 * @rx_mask: bitmask representing active RX slots.
3648 *
3649 * Generates the TDM tx and rx slot default masks for DAI.
3650 */
e5c21514 3651static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
89c67857
XL		 3652 unsigned int *tx_mask,
3653 unsigned int *rx_mask)
3654{
3655 if (*tx_mask || *rx_mask)
3656 return 0;
3657
3658 if (!slots)
3659 return -EINVAL;
3660
3661 *tx_mask = (1 << slots) - 1;
3662 *rx_mask = (1 << slots) - 1;
3663
3664 return 0;
3665}
3666
8c6529db
LG		 3667/**
3668 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3669 * @dai: DAI
a5479e38
DR		 3670 * @tx_mask: bitmask representing active TX slots.
3671 * @rx_mask: bitmask representing active RX slots.
8c6529db 3672 * @slots: Number of slots in use.
a5479e38 3673 * @slot_width: Width in bits for each slot.
8c6529db
LG		 3674 *
3675 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3676 * specific.
3677 */
3678int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
a5479e38 3679 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
8c6529db 3680{
e5c21514
XL		 3681 if (dai->driver && dai->driver->ops->xlate_tdm_slot_mask)
3682 dai->driver->ops->xlate_tdm_slot_mask(slots,
89c67857
XL		 3683 &tx_mask, &rx_mask);
3684 else
e5c21514 3685 snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
89c67857 3686
88bd870f
BC		 3687 dai->tx_mask = tx_mask;
3688 dai->rx_mask = rx_mask;
3689
f0fba2ad
LG		 3690 if (dai->driver && dai->driver->ops->set_tdm_slot)
3691 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
a5479e38 3692 slots, slot_width);
8c6529db 3693 else
b2cbb6e1 3694 return -ENOTSUPP;
8c6529db
LG		 3695}
3696EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
3697
472df3cb
BS		 3698/**
3699 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3700 * @dai: DAI
3701 * @tx_num: how many TX channels
3702 * @tx_slot: pointer to an array which imply the TX slot number channel
3703 * 0~num-1 uses
3704 * @rx_num: how many RX channels
3705 * @rx_slot: pointer to an array which imply the RX slot number channel
3706 * 0~num-1 uses
3707 *
3708 * configure the relationship between channel number and TDM slot number.
3709 */
3710int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3711 unsigned int tx_num, unsigned int *tx_slot,
3712 unsigned int rx_num, unsigned int *rx_slot)
3713{
f0fba2ad
LG		 3714 if (dai->driver && dai->driver->ops->set_channel_map)
3715 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
472df3cb
BS		 3716 rx_num, rx_slot);
3717 else
3718 return -EINVAL;
3719}
3720EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3721
8c6529db
LG		 3722/**
3723 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3724 * @dai: DAI
3725 * @tristate: tristate enable
3726 *
3727 * Tristates the DAI so that others can use it.
3728 */
3729int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3730{
f0fba2ad
LG		 3731 if (dai->driver && dai->driver->ops->set_tristate)
3732 return dai->driver->ops->set_tristate(dai, tristate);
8c6529db
LG		 3733 else
3734 return -EINVAL;
3735}
3736EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3737
3738/**
3739 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3740 * @dai: DAI
3741 * @mute: mute enable
da18396f 3742 * @direction: stream to mute
8c6529db
LG		 3743 *
3744 * Mutes the DAI DAC.
3745 */
da18396f
MB		 3746int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
3747 int direction)
8c6529db 3748{
da18396f
MB		 3749 if (!dai->driver)
3750 return -ENOTSUPP;
3751
3752 if (dai->driver->ops->mute_stream)
3753 return dai->driver->ops->mute_stream(dai, mute, direction);
3754 else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
3755 dai->driver->ops->digital_mute)
f0fba2ad 3756 return dai->driver->ops->digital_mute(dai, mute);
8c6529db 3757 else
04570c62 3758 return -ENOTSUPP;
8c6529db
LG		 3759}
3760EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3761
88bd870f
BC		 3762static int snd_soc_init_multicodec(struct snd_soc_card *card,
3763 struct snd_soc_dai_link *dai_link)
3764{
3765 /* Legacy codec/codec_dai link is a single entry in multicodec */
3766 if (dai_link->codec_name || dai_link->codec_of_node ||
3767 dai_link->codec_dai_name) {
3768 dai_link->num_codecs = 1;
3769
3770 dai_link->codecs = devm_kzalloc(card->dev,
3771 sizeof(struct snd_soc_dai_link_component),
3772 GFP_KERNEL);
3773 if (!dai_link->codecs)
3774 return -ENOMEM;
3775
3776 dai_link->codecs[0].name = dai_link->codec_name;
3777 dai_link->codecs[0].of_node = dai_link->codec_of_node;
3778 dai_link->codecs[0].dai_name = dai_link->codec_dai_name;
3779 }
3780
3781 if (!dai_link->codecs) {
3782 dev_err(card->dev, "ASoC: DAI link has no CODECs\n");
3783 return -EINVAL;
3784 }
3785
3786 return 0;
3787}
3788
c5af3a2e
MB		 3789/**
3790 * snd_soc_register_card - Register a card with the ASoC core
3791 *
ac11a2b3 3792 * @card: Card to register
c5af3a2e 3793 *
c5af3a2e 3794 */
70a7ca34 3795int snd_soc_register_card(struct snd_soc_card *card)
c5af3a2e 3796{
88bd870f 3797 int i, j, ret;
f0fba2ad 3798
c5af3a2e
MB		 3799 if (!card->name || !card->dev)
3800 return -EINVAL;
3801
5a504963
SW		 3802 for (i = 0; i < card->num_links; i++) {
3803 struct snd_soc_dai_link *link = &card->dai_link[i];
3804
88bd870f
BC		 3805 ret = snd_soc_init_multicodec(card, link);
3806 if (ret) {
3807 dev_err(card->dev, "ASoC: failed to init multicodec\n");
3808 return ret;
5a504963 3809 }
88bd870f
BC		 3810
3811 for (j = 0; j < link->num_codecs; j++) {
3812 /*
3813 * Codec must be specified by 1 of name or OF node,
3814 * not both or neither.
3815 */
3816 if (!!link->codecs[j].name ==
3817 !!link->codecs[j].of_node) {
3818 dev_err(card->dev, "ASoC: Neither/both codec name/of_node are set for %s\n",
3819 link->name);
3820 return -EINVAL;
3821 }
3822 /* Codec DAI name must be specified */
3823 if (!link->codecs[j].dai_name) {
3824 dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n",
3825 link->name);
3826 return -EINVAL;
3827 }
bc92657a 3828 }
5a504963
SW		 3829
3830 /*
3831 * Platform may be specified by either name or OF node, but
3832 * can be left unspecified, and a dummy platform will be used.
3833 */
3834 if (link->platform_name && link->platform_of_node) {
10e8aa9a
MM		 3835 dev_err(card->dev,
3836 "ASoC: Both platform name/of_node are set for %s\n",
3837 link->name);
5a504963
SW		 3838 return -EINVAL;
3839 }
3840
3841 /*
bc92657a
SW		 3842 * CPU device may be specified by either name or OF node, but
3843 * can be left unspecified, and will be matched based on DAI
3844 * name alone..
3845 */
3846 if (link->cpu_name && link->cpu_of_node) {
10e8aa9a
MM		 3847 dev_err(card->dev,
3848 "ASoC: Neither/both cpu name/of_node are set for %s\n",
3849 link->name);
bc92657a
SW		 3850 return -EINVAL;
3851 }
3852 /*
3853 * At least one of CPU DAI name or CPU device name/node must be
3854 * specified
5a504963 3855 */
bc92657a
SW		 3856 if (!link->cpu_dai_name &&
3857 !(link->cpu_name || link->cpu_of_node)) {
10e8aa9a
MM		 3858 dev_err(card->dev,
3859 "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
3860 link->name);
5a504963
SW		 3861 return -EINVAL;
3862 }
3863 }
3864
ed77cc12
MB		 3865 dev_set_drvdata(card->dev, card);
3866
111c6419
SW		 3867 snd_soc_initialize_card_lists(card);
3868
150dd2f8
VK		 3869 soc_init_card_debugfs(card);
3870
181a6892
MB		 3871 card->rtd = devm_kzalloc(card->dev,
3872 sizeof(struct snd_soc_pcm_runtime) *
3873 (card->num_links + card->num_aux_devs),
3874 GFP_KERNEL);
f0fba2ad
LG		 3875 if (card->rtd == NULL)
3876 return -ENOMEM;
a7dbb603 3877 card->num_rtd = 0;
2eea392d 3878 card->rtd_aux = &card->rtd[card->num_links];
f0fba2ad 3879
5f3484ac
LPC		 3880 for (i = 0; i < card->num_links; i++) {
3881 card->rtd[i].card = card;
f0fba2ad 3882 card->rtd[i].dai_link = &card->dai_link[i];
88bd870f
BC		 3883 card->rtd[i].codec_dais = devm_kzalloc(card->dev,
3884 sizeof(struct snd_soc_dai *) *
3885 (card->rtd[i].dai_link->num_codecs),
3886 GFP_KERNEL);
3887 if (card->rtd[i].codec_dais == NULL)
3888 return -ENOMEM;
5f3484ac
LPC		 3889 }
3890
3891 for (i = 0; i < card->num_aux_devs; i++)
3892 card->rtd_aux[i].card = card;
f0fba2ad 3893
db432b41 3894 INIT_LIST_HEAD(&card->dapm_dirty);
c5af3a2e 3895 card->instantiated = 0;
f0fba2ad 3896 mutex_init(&card->mutex);
a73fb2df 3897 mutex_init(&card->dapm_mutex);
c5af3a2e 3898
b19e6e7b
MB		 3899 ret = snd_soc_instantiate_card(card);
3900 if (ret != 0)
3901 soc_cleanup_card_debugfs(card);
c5af3a2e 3902
988e8cc4
NC		 3903 /* deactivate pins to sleep state */
3904 for (i = 0; i < card->num_rtd; i++) {
88bd870f
BC		 3905 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
3906 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
3907 int j;
3908
3909 for (j = 0; j < rtd->num_codecs; j++) {
3910 struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
3911 if (!codec_dai->active)
3912 pinctrl_pm_select_sleep_state(codec_dai->dev);
3913 }
3914
988e8cc4
NC		 3915 if (!cpu_dai->active)
3916 pinctrl_pm_select_sleep_state(cpu_dai->dev);
3917 }
3918
b19e6e7b 3919 return ret;
c5af3a2e 3920}
70a7ca34 3921EXPORT_SYMBOL_GPL(snd_soc_register_card);
c5af3a2e
MB		 3922
3923/**
3924 * snd_soc_unregister_card - Unregister a card with the ASoC core
3925 *
ac11a2b3 3926 * @card: Card to unregister
c5af3a2e 3927 *
c5af3a2e 3928 */
70a7ca34 3929int snd_soc_unregister_card(struct snd_soc_card *card)
c5af3a2e 3930{
b0e26485
VK		 3931 if (card->instantiated)
3932 soc_cleanup_card_resources(card);
f110bfc7 3933 dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name);
c5af3a2e
MB		 3934
3935 return 0;
3936}
70a7ca34 3937EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
c5af3a2e 3938
f0fba2ad
LG		 3939/*
3940 * Simplify DAI link configuration by removing ".-1" from device names
3941 * and sanitizing names.
3942 */
0b9a214a 3943static char *fmt_single_name(struct device *dev, int *id)
f0fba2ad
LG		 3944{
3945 char *found, name[NAME_SIZE];
3946 int id1, id2;
3947
3948 if (dev_name(dev) == NULL)
3949 return NULL;
3950
58818a77 3951 strlcpy(name, dev_name(dev), NAME_SIZE);
f0fba2ad
LG		 3952
3953 /* are we a "%s.%d" name (platform and SPI components) */
3954 found = strstr(name, dev->driver->name);
3955 if (found) {
3956 /* get ID */
3957 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3958
3959 /* discard ID from name if ID == -1 */
3960 if (*id == -1)
3961 found[strlen(dev->driver->name)] = '\0';
3962 }
3963
3964 } else {
3965 /* I2C component devices are named "bus-addr" */
3966 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3967 char tmp[NAME_SIZE];
3968
3969 /* create unique ID number from I2C addr and bus */
05899446 3970 *id = ((id1 & 0xffff) << 16) + id2;
f0fba2ad
LG		 3971
3972 /* sanitize component name for DAI link creation */
3973 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
58818a77 3974 strlcpy(name, tmp, NAME_SIZE);
f0fba2ad
LG		 3975 } else
3976 *id = 0;
3977 }
3978
3979 return kstrdup(name, GFP_KERNEL);
3980}
3981
3982/*
3983 * Simplify DAI link naming for single devices with multiple DAIs by removing
3984 * any ".-1" and using the DAI name (instead of device name).
3985 */
3986static inline char *fmt_multiple_name(struct device *dev,
3987 struct snd_soc_dai_driver *dai_drv)
3988{
3989 if (dai_drv->name == NULL) {
10e8aa9a
MM		 3990 dev_err(dev,
3991 "ASoC: error - multiple DAI %s registered with no name\n",
3992 dev_name(dev));
f0fba2ad
LG		 3993 return NULL;
3994 }
3995
3996 return kstrdup(dai_drv->name, GFP_KERNEL);
3997}
3998
9115171a 3999/**
32c9ba54 4000 * snd_soc_unregister_dai - Unregister DAIs from the ASoC core
9115171a 4001 *
32c9ba54 4002 * @component: The component for which the DAIs should be unregistered
9115171a 4003 */
32c9ba54 4004static void snd_soc_unregister_dais(struct snd_soc_component *component)
9115171a 4005{
5c1d5f09 4006 struct snd_soc_dai *dai, *_dai;
9115171a 4007
5c1d5f09 4008 list_for_each_entry_safe(dai, _dai, &component->dai_list, list) {
32c9ba54
LPC		 4009 dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n",
4010 dai->name);
5c1d5f09 4011 list_del(&dai->list);
32c9ba54 4012 kfree(dai->name);
f0fba2ad 4013 kfree(dai);
f0fba2ad 4014 }
9115171a 4015}
9115171a
MB		 4016
4017/**
32c9ba54 4018 * snd_soc_register_dais - Register a DAI with the ASoC core
9115171a 4019 *
6106d129
LPC		 4020 * @component: The component the DAIs are registered for
4021 * @dai_drv: DAI driver to use for the DAIs
ac11a2b3 4022 * @count: Number of DAIs
32c9ba54
LPC		 4023 * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the
4024 * parent's name.
9115171a 4025 */
6106d129 4026static int snd_soc_register_dais(struct snd_soc_component *component,
bb13109d
LPC		 4027 struct snd_soc_dai_driver *dai_drv, size_t count,
4028 bool legacy_dai_naming)
9115171a 4029{
6106d129 4030 struct device *dev = component->dev;
f0fba2ad 4031 struct snd_soc_dai *dai;
32c9ba54
LPC		 4032 unsigned int i;
4033 int ret;
f0fba2ad 4034
f110bfc7 4035 dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count);
9115171a 4036
bb13109d
LPC		 4037 component->dai_drv = dai_drv;
4038 component->num_dai = count;
4039
9115171a 4040 for (i = 0; i < count; i++) {
f0fba2ad
LG		 4041
4042 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
c46e0079
AL		 4043 if (dai == NULL) {
4044 ret = -ENOMEM;
4045 goto err;
4046 }
f0fba2ad 4047
32c9ba54
LPC		 4048 /*
4049 * Back in the old days when we still had component-less DAIs,
4050 * instead of having a static name, component-less DAIs would
4051 * inherit the name of the parent device so it is possible to
4052 * register multiple instances of the DAI. We still need to keep
4053 * the same naming style even though those DAIs are not
4054 * component-less anymore.
4055 */
4056 if (count == 1 && legacy_dai_naming) {
4057 dai->name = fmt_single_name(dev, &dai->id);
4058 } else {
4059 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
4060 if (dai_drv[i].id)
4061 dai->id = dai_drv[i].id;
4062 else
4063 dai->id = i;
4064 }
f0fba2ad
LG		 4065 if (dai->name == NULL) {
4066 kfree(dai);
32c9ba54 4067 ret = -ENOMEM;
9115171a 4068 goto err;
f0fba2ad
LG		 4069 }
4070
6106d129 4071 dai->component = component;
f0fba2ad 4072 dai->dev = dev;
f0fba2ad
LG		 4073 dai->driver = &dai_drv[i];
4074 if (!dai->driver->ops)
4075 dai->driver->ops = &null_dai_ops;
4076
1438c2f6 4077 list_add(&dai->list, &component->dai_list);
054880fe 4078
32c9ba54 4079 dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
9115171a
MB		 4080 }
4081
4082 return 0;
4083
4084err:
32c9ba54 4085 snd_soc_unregister_dais(component);
9115171a
MB		 4086
4087 return ret;
4088}
9115171a 4089
14e8bdeb
LPC		 4090static void snd_soc_component_seq_notifier(struct snd_soc_dapm_context *dapm,
4091 enum snd_soc_dapm_type type, int subseq)
d191bd8d 4092{
14e8bdeb 4093 struct snd_soc_component *component = dapm->component;
d191bd8d 4094
14e8bdeb
LPC		 4095 component->driver->seq_notifier(component, type, subseq);
4096}
d191bd8d 4097
14e8bdeb
LPC		 4098static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm,
4099 int event)
4100{
4101 struct snd_soc_component *component = dapm->component;
d191bd8d 4102
14e8bdeb
LPC		 4103 return component->driver->stream_event(component, event);
4104}
e2c330b9 4105
bb13109d
LPC		 4106static int snd_soc_component_initialize(struct snd_soc_component *component,
4107 const struct snd_soc_component_driver *driver, struct device *dev)
d191bd8d 4108{
ce0fc93a
LPC		 4109 struct snd_soc_dapm_context *dapm;
4110
bb13109d
LPC		 4111 component->name = fmt_single_name(dev, &component->id);
4112 if (!component->name) {
4113 dev_err(dev, "ASoC: Failed to allocate name\n");
d191bd8d
KM		 4114 return -ENOMEM;
4115 }
4116
bb13109d
LPC		 4117 component->dev = dev;
4118 component->driver = driver;
d191bd8d 4119
ce0fc93a
LPC		 4120 if (!component->dapm_ptr)
4121 component->dapm_ptr = &component->dapm;
4122
4123 dapm = component->dapm_ptr;
4124 dapm->dev = dev;
4125 dapm->component = component;
4126 dapm->bias_level = SND_SOC_BIAS_OFF;
14e8bdeb
LPC		 4127 if (driver->seq_notifier)
4128 dapm->seq_notifier = snd_soc_component_seq_notifier;
4129 if (driver->stream_event)
4130 dapm->stream_event = snd_soc_component_stream_event;
d191bd8d 4131
bb13109d
LPC		 4132 INIT_LIST_HEAD(&component->dai_list);
4133 mutex_init(&component->io_mutex);
d191bd8d 4134
bb13109d
LPC		 4135 return 0;
4136}
d191bd8d 4137
bb13109d
LPC		 4138static void snd_soc_component_add_unlocked(struct snd_soc_component *component)
4139{
4140 list_add(&component->list, &component_list);
4141}
d191bd8d 4142
bb13109d
LPC		 4143static void snd_soc_component_add(struct snd_soc_component *component)
4144{
d191bd8d 4145 mutex_lock(&client_mutex);
bb13109d 4146 snd_soc_component_add_unlocked(component);
d191bd8d 4147 mutex_unlock(&client_mutex);
bb13109d 4148}
d191bd8d 4149
bb13109d
LPC		 4150static void snd_soc_component_cleanup(struct snd_soc_component *component)
4151{
4152 snd_soc_unregister_dais(component);
4153 kfree(component->name);
4154}
d191bd8d 4155
bb13109d
LPC		 4156static void snd_soc_component_del_unlocked(struct snd_soc_component *component)
4157{
4158 list_del(&component->list);
4159}
d191bd8d 4160
bb13109d
LPC		 4161static void snd_soc_component_del(struct snd_soc_component *component)
4162{
4163 mutex_lock(&client_mutex);
4164 snd_soc_component_del_unlocked(component);
4165 mutex_unlock(&client_mutex);
d191bd8d
KM		 4166}
4167
4168int snd_soc_register_component(struct device *dev,
4169 const struct snd_soc_component_driver *cmpnt_drv,
4170 struct snd_soc_dai_driver *dai_drv,
4171 int num_dai)
4172{
4173 struct snd_soc_component *cmpnt;
bb13109d 4174 int ret;
d191bd8d 4175
bb13109d 4176 cmpnt = kzalloc(sizeof(*cmpnt), GFP_KERNEL);
d191bd8d
KM		 4177 if (!cmpnt) {
4178 dev_err(dev, "ASoC: Failed to allocate memory\n");
4179 return -ENOMEM;
4180 }
4181
bb13109d
LPC		 4182 ret = snd_soc_component_initialize(cmpnt, cmpnt_drv, dev);
4183 if (ret)
4184 goto err_free;
4185
3d59400f 4186 cmpnt->ignore_pmdown_time = true;
98e639fb 4187 cmpnt->registered_as_component = true;
3d59400f 4188
bb13109d
LPC		 4189 ret = snd_soc_register_dais(cmpnt, dai_drv, num_dai, true);
4190 if (ret < 0) {
4191 dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
4192 goto err_cleanup;
4193 }
d191bd8d 4194
bb13109d 4195 snd_soc_component_add(cmpnt);
4da53393 4196
bb13109d 4197 return 0;
4da53393 4198
bb13109d
LPC		 4199err_cleanup:
4200 snd_soc_component_cleanup(cmpnt);
4201err_free:
4202 kfree(cmpnt);
4203 return ret;
4da53393 4204}
bb13109d 4205EXPORT_SYMBOL_GPL(snd_soc_register_component);
4da53393 4206
d191bd8d
KM		 4207/**
4208 * snd_soc_unregister_component - Unregister a component from the ASoC core
4209 *
4210 */
4211void snd_soc_unregister_component(struct device *dev)
4212{
4213 struct snd_soc_component *cmpnt;
4214
4215 list_for_each_entry(cmpnt, &component_list, list) {
98e639fb 4216 if (dev == cmpnt->dev && cmpnt->registered_as_component)
d191bd8d
KM		 4217 goto found;
4218 }
4219 return;
4220
4221found:
bb13109d
LPC		 4222 snd_soc_component_del(cmpnt);
4223 snd_soc_component_cleanup(cmpnt);
4224 kfree(cmpnt);
d191bd8d
KM		 4225}
4226EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
d191bd8d 4227
e2c330b9
LPC		 4228static int snd_soc_platform_drv_write(struct snd_soc_component *component,
4229 unsigned int reg, unsigned int val)
4230{
4231 struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
d191bd8d 4232
e2c330b9
LPC		 4233 return platform->driver->write(platform, reg, val);
4234}
4235
4236static int snd_soc_platform_drv_read(struct snd_soc_component *component,
4237 unsigned int reg, unsigned int *val)
4238{
4239 struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
4240
4241 *val = platform->driver->read(platform, reg);
4242
4243 return 0;
d191bd8d 4244}
d191bd8d 4245
12a48a8c 4246/**
71a45cda
LPC		 4247 * snd_soc_add_platform - Add a platform to the ASoC core
4248 * @dev: The parent device for the platform
4249 * @platform: The platform to add
4250 * @platform_driver: The driver for the platform
12a48a8c 4251 */
71a45cda 4252int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
d79e57db 4253 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 4254{
b37f1d12
LPC		 4255 int ret;
4256
bb13109d
LPC		 4257 ret = snd_soc_component_initialize(&platform->component,
4258 &platform_drv->component_driver, dev);
4259 if (ret)
4260 return ret;
12a48a8c 4261
f0fba2ad
LG		 4262 platform->dev = dev;
4263 platform->driver = platform_drv;
e2c330b9
LPC		 4264 if (platform_drv->write)
4265 platform->component.write = snd_soc_platform_drv_write;
4266 if (platform_drv->read)
4267 platform->component.read = snd_soc_platform_drv_read;
12a48a8c
MB		 4268
4269 mutex_lock(&client_mutex);
bb13109d 4270 snd_soc_component_add_unlocked(&platform->component);
12a48a8c
MB		 4271 list_add(&platform->list, &platform_list);
4272 mutex_unlock(&client_mutex);
4273
f4333203
LPC		 4274 dev_dbg(dev, "ASoC: Registered platform '%s'\n",
4275 platform->component.name);
12a48a8c
MB		 4276
4277 return 0;
4278}
71a45cda 4279EXPORT_SYMBOL_GPL(snd_soc_add_platform);
12a48a8c
MB		 4280
4281/**
71a45cda 4282 * snd_soc_register_platform - Register a platform with the ASoC core
12a48a8c 4283 *
71a45cda 4284 * @platform: platform to register
12a48a8c 4285 */
71a45cda
LPC		 4286int snd_soc_register_platform(struct device *dev,
4287 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 4288{
f0fba2ad 4289 struct snd_soc_platform *platform;
71a45cda 4290 int ret;
f0fba2ad 4291
71a45cda 4292 dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev));
f0fba2ad 4293
71a45cda
LPC		 4294 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
4295 if (platform == NULL)
4296 return -ENOMEM;
4297
4298 ret = snd_soc_add_platform(dev, platform, platform_drv);
4299 if (ret)
4300 kfree(platform);
4301
4302 return ret;
4303}
4304EXPORT_SYMBOL_GPL(snd_soc_register_platform);
4305
4306/**
4307 * snd_soc_remove_platform - Remove a platform from the ASoC core
4308 * @platform: the platform to remove
4309 */
4310void snd_soc_remove_platform(struct snd_soc_platform *platform)
4311{
b37f1d12 4312
12a48a8c
MB		 4313 mutex_lock(&client_mutex);
4314 list_del(&platform->list);
bb13109d 4315 snd_soc_component_del_unlocked(&platform->component);
12a48a8c
MB		 4316 mutex_unlock(&client_mutex);
4317
bb13109d
LPC		 4318 snd_soc_component_cleanup(&platform->component);
4319
71a45cda 4320 dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n",
f4333203 4321 platform->component.name);
71a45cda
LPC		 4322}
4323EXPORT_SYMBOL_GPL(snd_soc_remove_platform);
4324
4325struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
4326{
4327 struct snd_soc_platform *platform;
4328
4329 list_for_each_entry(platform, &platform_list, list) {
4330 if (dev == platform->dev)
4331 return platform;
4332 }
4333
4334 return NULL;
4335}
4336EXPORT_SYMBOL_GPL(snd_soc_lookup_platform);
4337
4338/**
4339 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
4340 *
4341 * @platform: platform to unregister
4342 */
4343void snd_soc_unregister_platform(struct device *dev)
4344{
4345 struct snd_soc_platform *platform;
4346
4347 platform = snd_soc_lookup_platform(dev);
4348 if (!platform)
4349 return;
4350
4351 snd_soc_remove_platform(platform);
f0fba2ad 4352 kfree(platform);
12a48a8c
MB		 4353}
4354EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
4355
151ab22c
MB		 4356static u64 codec_format_map[] = {
4357 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
4358 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
4359 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
4360 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
4361 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
4362 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
4363 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4364 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4365 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
4366 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
4367 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
4368 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
4369 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
4370 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
4371 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
4372 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
4373};
4374
4375/* Fix up the DAI formats for endianness: codecs don't actually see
4376 * the endianness of the data but we're using the CPU format
4377 * definitions which do need to include endianness so we ensure that
4378 * codec DAIs always have both big and little endian variants set.
4379 */
4380static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
4381{
4382 int i;
4383
4384 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
4385 if (stream->formats & codec_format_map[i])
4386 stream->formats |= codec_format_map[i];
4387}
4388
e2c330b9
LPC		 4389static int snd_soc_codec_drv_write(struct snd_soc_component *component,
4390 unsigned int reg, unsigned int val)
4391{
4392 struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
4393
4394 return codec->driver->write(codec, reg, val);
4395}
4396
4397static int snd_soc_codec_drv_read(struct snd_soc_component *component,
4398 unsigned int reg, unsigned int *val)
4399{
4400 struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
4401
4402 *val = codec->driver->read(codec, reg);
4403
4404 return 0;
4405}
4406
68f831c2
LPC		 4407static int snd_soc_codec_set_bias_level(struct snd_soc_dapm_context *dapm,
4408 enum snd_soc_bias_level level)
4409{
4410 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
4411
4412 return codec->driver->set_bias_level(codec, level);
4413}
4414
0d0cf00a
MB		 4415/**
4416 * snd_soc_register_codec - Register a codec with the ASoC core
4417 *
ac11a2b3 4418 * @codec: codec to register
0d0cf00a 4419 */
f0fba2ad 4420int snd_soc_register_codec(struct device *dev,
001ae4c0
MB		 4421 const struct snd_soc_codec_driver *codec_drv,
4422 struct snd_soc_dai_driver *dai_drv,
4423 int num_dai)
0d0cf00a 4424{
f0fba2ad 4425 struct snd_soc_codec *codec;
bb13109d 4426 struct snd_soc_dai *dai;
a39f75f7 4427 struct regmap *regmap;
f0fba2ad 4428 int ret, i;
151ab22c 4429
f0fba2ad
LG		 4430 dev_dbg(dev, "codec register %s\n", dev_name(dev));
4431
4432 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
4433 if (codec == NULL)
4434 return -ENOMEM;
0d0cf00a 4435
ce0fc93a
LPC		 4436 codec->component.dapm_ptr = &codec->dapm;
4437
bb13109d
LPC		 4438 ret = snd_soc_component_initialize(&codec->component,
4439 &codec_drv->component_driver, dev);
4440 if (ret)
4441 goto err_free;
f0fba2ad 4442
e2c330b9
LPC		 4443 if (codec_drv->write)
4444 codec->component.write = snd_soc_codec_drv_write;
4445 if (codec_drv->read)
4446 codec->component.read = snd_soc_codec_drv_read;
3d59400f 4447 codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time;
ce6120cc 4448 codec->dapm.codec = codec;
14e8bdeb
LPC		 4449 if (codec_drv->seq_notifier)
4450 codec->dapm.seq_notifier = codec_drv->seq_notifier;
68f831c2
LPC		 4451 if (codec_drv->set_bias_level)
4452 codec->dapm.set_bias_level = snd_soc_codec_set_bias_level;
7a30a3db
DP		 4453 codec->dev = dev;
4454 codec->driver = codec_drv;
e2c330b9 4455 codec->component.val_bytes = codec_drv->reg_word_size;
7a30a3db 4456 mutex_init(&codec->mutex);
ce6120cc 4457
e2c330b9 4458 if (!codec->component.write) {
a39f75f7
XL		 4459 if (codec_drv->get_regmap)
4460 regmap = codec_drv->get_regmap(dev);
4461 else
4462 regmap = dev_get_regmap(dev, NULL);
4463
4464 if (regmap) {
e2c330b9
LPC		 4465 ret = snd_soc_component_init_io(&codec->component,
4466 regmap);
4467 if (ret) {
a39f75f7
XL		 4468 dev_err(codec->dev,
4469 "Failed to set cache I/O:%d\n",
4470 ret);
bb13109d 4471 goto err_cleanup;
a39f75f7
XL		 4472 }
4473 }
4474 }
4475
f0fba2ad
LG		 4476 for (i = 0; i < num_dai; i++) {
4477 fixup_codec_formats(&dai_drv[i].playback);
4478 fixup_codec_formats(&dai_drv[i].capture);
4479 }
4480
bb13109d 4481 ret = snd_soc_register_dais(&codec->component, dai_drv, num_dai, false);
5acd7dfb 4482 if (ret < 0) {
bb13109d
LPC		 4483 dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
4484 goto err_cleanup;
26b01ccd 4485 }
f0fba2ad 4486
bb13109d
LPC		 4487 list_for_each_entry(dai, &codec->component.dai_list, list)
4488 dai->codec = codec;
f0fba2ad 4489
e1328a83 4490 mutex_lock(&client_mutex);
bb13109d 4491 snd_soc_component_add_unlocked(&codec->component);
054880fe 4492 list_add(&codec->list, &codec_list);
e1328a83
KM		 4493 mutex_unlock(&client_mutex);
4494
f4333203
LPC		 4495 dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n",
4496 codec->component.name);
0d0cf00a 4497 return 0;
f0fba2ad 4498
bb13109d
LPC		 4499err_cleanup:
4500 snd_soc_component_cleanup(&codec->component);
4501err_free:
f0fba2ad
LG		 4502 kfree(codec);
4503 return ret;
0d0cf00a
MB		 4504}
4505EXPORT_SYMBOL_GPL(snd_soc_register_codec);
4506
4507/**
4508 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4509 *
ac11a2b3 4510 * @codec: codec to unregister
0d0cf00a 4511 */
f0fba2ad 4512void snd_soc_unregister_codec(struct device *dev)
0d0cf00a 4513{
f0fba2ad 4514 struct snd_soc_codec *codec;
f0fba2ad
LG		 4515
4516 list_for_each_entry(codec, &codec_list, list) {
4517 if (dev == codec->dev)
4518 goto found;
4519 }
4520 return;
4521
4522found:
f0fba2ad 4523
0d0cf00a
MB		 4524 mutex_lock(&client_mutex);
4525 list_del(&codec->list);
bb13109d 4526 snd_soc_component_del_unlocked(&codec->component);
0d0cf00a
MB		 4527 mutex_unlock(&client_mutex);
4528
f4333203
LPC		 4529 dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n",
4530 codec->component.name);
f0fba2ad 4531
bb13109d 4532 snd_soc_component_cleanup(&codec->component);
7a30a3db 4533 snd_soc_cache_exit(codec);
f0fba2ad 4534 kfree(codec);
0d0cf00a
MB		 4535}
4536EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
4537
bec4fa05
SW		 4538/* Retrieve a card's name from device tree */
4539int snd_soc_of_parse_card_name(struct snd_soc_card *card,
4540 const char *propname)
4541{
7e07e7c0 4542 struct device_node *np;
bec4fa05
SW		 4543 int ret;
4544
7e07e7c0
TB		 4545 if (!card->dev) {
4546 pr_err("card->dev is not set before calling %s\n", __func__);
4547 return -EINVAL;
4548 }
4549
4550 np = card->dev->of_node;
4551
bec4fa05
SW		 4552 ret = of_property_read_string_index(np, propname, 0, &card->name);
4553 /*
4554 * EINVAL means the property does not exist. This is fine providing
4555 * card->name was previously set, which is checked later in
4556 * snd_soc_register_card.
4557 */
4558 if (ret < 0 && ret != -EINVAL) {
4559 dev_err(card->dev,
f110bfc7 4560 "ASoC: Property '%s' could not be read: %d\n",
bec4fa05
SW		 4561 propname, ret);
4562 return ret;
4563 }
4564
4565 return 0;
4566}
4567EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
4568
9a6d4860
XL		 4569static const struct snd_soc_dapm_widget simple_widgets[] = {
4570 SND_SOC_DAPM_MIC("Microphone", NULL),
4571 SND_SOC_DAPM_LINE("Line", NULL),
4572 SND_SOC_DAPM_HP("Headphone", NULL),
4573 SND_SOC_DAPM_SPK("Speaker", NULL),
4574};
4575
4576int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
4577 const char *propname)
4578{
4579 struct device_node *np = card->dev->of_node;
4580 struct snd_soc_dapm_widget *widgets;
4581 const char *template, *wname;
4582 int i, j, num_widgets, ret;
4583
4584 num_widgets = of_property_count_strings(np, propname);
4585 if (num_widgets < 0) {
4586 dev_err(card->dev,
4587 "ASoC: Property '%s' does not exist\n", propname);
4588 return -EINVAL;
4589 }
4590 if (num_widgets & 1) {
4591 dev_err(card->dev,
4592 "ASoC: Property '%s' length is not even\n", propname);
4593 return -EINVAL;
4594 }
4595
4596 num_widgets /= 2;
4597 if (!num_widgets) {
4598 dev_err(card->dev, "ASoC: Property '%s's length is zero\n",
4599 propname);
4600 return -EINVAL;
4601 }
4602
4603 widgets = devm_kcalloc(card->dev, num_widgets, sizeof(*widgets),
4604 GFP_KERNEL);
4605 if (!widgets) {
4606 dev_err(card->dev,
4607 "ASoC: Could not allocate memory for widgets\n");
4608 return -ENOMEM;
4609 }
4610
4611 for (i = 0; i < num_widgets; i++) {
4612 ret = of_property_read_string_index(np, propname,
4613 2 * i, &template);
4614 if (ret) {
4615 dev_err(card->dev,
4616 "ASoC: Property '%s' index %d read error:%d\n",
4617 propname, 2 * i, ret);
4618 return -EINVAL;
4619 }
4620
4621 for (j = 0; j < ARRAY_SIZE(simple_widgets); j++) {
4622 if (!strncmp(template, simple_widgets[j].name,
4623 strlen(simple_widgets[j].name))) {
4624 widgets[i] = simple_widgets[j];
4625 break;
4626 }
4627 }
4628
4629 if (j >= ARRAY_SIZE(simple_widgets)) {
4630 dev_err(card->dev,
4631 "ASoC: DAPM widget '%s' is not supported\n",
4632 template);
4633 return -EINVAL;
4634 }
4635
4636 ret = of_property_read_string_index(np, propname,
4637 (2 * i) + 1,
4638 &wname);
4639 if (ret) {
4640 dev_err(card->dev,
4641 "ASoC: Property '%s' index %d read error:%d\n",
4642 propname, (2 * i) + 1, ret);
4643 return -EINVAL;
4644 }
4645
4646 widgets[i].name = wname;
4647 }
4648
4649 card->dapm_widgets = widgets;
4650 card->num_dapm_widgets = num_widgets;
4651
4652 return 0;
4653}
4654EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets);
4655
89c67857
XL		 4656int snd_soc_of_parse_tdm_slot(struct device_node *np,
4657 unsigned int *slots,
4658 unsigned int *slot_width)
4659{
4660 u32 val;
4661 int ret;
4662
4663 if (of_property_read_bool(np, "dai-tdm-slot-num")) {
4664 ret = of_property_read_u32(np, "dai-tdm-slot-num", &val);
4665 if (ret)
4666 return ret;
4667
4668 if (slots)
4669 *slots = val;
4670 }
4671
4672 if (of_property_read_bool(np, "dai-tdm-slot-width")) {
4673 ret = of_property_read_u32(np, "dai-tdm-slot-width", &val);
4674 if (ret)
4675 return ret;
4676
4677 if (slot_width)
4678 *slot_width = val;
4679 }
4680
4681 return 0;
4682}
4683EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot);
4684
a4a54dd5
SW		 4685int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
4686 const char *propname)
4687{
4688 struct device_node *np = card->dev->of_node;
4689 int num_routes;
4690 struct snd_soc_dapm_route *routes;
4691 int i, ret;
4692
4693 num_routes = of_property_count_strings(np, propname);
c34ce320 4694 if (num_routes < 0 || num_routes & 1) {
10e8aa9a
MM		 4695 dev_err(card->dev,
4696 "ASoC: Property '%s' does not exist or its length is not even\n",
4697 propname);
a4a54dd5
SW		 4698 return -EINVAL;
4699 }
4700 num_routes /= 2;
4701 if (!num_routes) {
f110bfc7 4702 dev_err(card->dev, "ASoC: Property '%s's length is zero\n",
a4a54dd5
SW		 4703 propname);
4704 return -EINVAL;
4705 }
4706
4707 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
4708 GFP_KERNEL);
4709 if (!routes) {
4710 dev_err(card->dev,
f110bfc7 4711 "ASoC: Could not allocate DAPM route table\n");
a4a54dd5
SW		 4712 return -EINVAL;
4713 }
4714
4715 for (i = 0; i < num_routes; i++) {
4716 ret = of_property_read_string_index(np, propname,
4717 2 * i, &routes[i].sink);
4718 if (ret) {
c871bd0b
MB		 4719 dev_err(card->dev,
4720 "ASoC: Property '%s' index %d could not be read: %d\n",
4721 propname, 2 * i, ret);
a4a54dd5
SW		 4722 return -EINVAL;
4723 }
4724 ret = of_property_read_string_index(np, propname,
4725 (2 * i) + 1, &routes[i].source);
4726 if (ret) {
4727 dev_err(card->dev,
c871bd0b
MB		 4728 "ASoC: Property '%s' index %d could not be read: %d\n",
4729 propname, (2 * i) + 1, ret);
a4a54dd5
SW		 4730 return -EINVAL;
4731 }
4732 }
4733
4734 card->num_dapm_routes = num_routes;
4735 card->dapm_routes = routes;
4736
4737 return 0;
4738}
4739EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
4740
a7930ed4 4741unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
389cb834
JS		 4742 const char *prefix,
4743 struct device_node **bitclkmaster,
4744 struct device_node **framemaster)
a7930ed4
KM		 4745{
4746 int ret, i;
4747 char prop[128];
4748 unsigned int format = 0;
4749 int bit, frame;
4750 const char *str;
4751 struct {
4752 char *name;
4753 unsigned int val;
4754 } of_fmt_table[] = {
4755 { "i2s", SND_SOC_DAIFMT_I2S },
4756 { "right_j", SND_SOC_DAIFMT_RIGHT_J },
4757 { "left_j", SND_SOC_DAIFMT_LEFT_J },
4758 { "dsp_a", SND_SOC_DAIFMT_DSP_A },
4759 { "dsp_b", SND_SOC_DAIFMT_DSP_B },
4760 { "ac97", SND_SOC_DAIFMT_AC97 },
4761 { "pdm", SND_SOC_DAIFMT_PDM},
4762 { "msb", SND_SOC_DAIFMT_MSB },
4763 { "lsb", SND_SOC_DAIFMT_LSB },
a7930ed4
KM		 4764 };
4765
4766 if (!prefix)
4767 prefix = "";
4768
4769 /*
4770 * check "[prefix]format = xxx"
4771 * SND_SOC_DAIFMT_FORMAT_MASK area
4772 */
4773 snprintf(prop, sizeof(prop), "%sformat", prefix);
4774 ret = of_property_read_string(np, prop, &str);
4775 if (ret == 0) {
4776 for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) {
4777 if (strcmp(str, of_fmt_table[i].name) == 0) {
4778 format |= of_fmt_table[i].val;
4779 break;
4780 }
4781 }
4782 }
4783
4784 /*
8c2d6a9f 4785 * check "[prefix]continuous-clock"
a7930ed4
KM		 4786 * SND_SOC_DAIFMT_CLOCK_MASK area
4787 */
8c2d6a9f
KM		 4788 snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix);
4789 if (of_get_property(np, prop, NULL))
4790 format |= SND_SOC_DAIFMT_CONT;
4791 else
4792 format |= SND_SOC_DAIFMT_GATED;
a7930ed4
KM		 4793
4794 /*
4795 * check "[prefix]bitclock-inversion"
4796 * check "[prefix]frame-inversion"
4797 * SND_SOC_DAIFMT_INV_MASK area
4798 */
4799 snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix);
4800 bit = !!of_get_property(np, prop, NULL);
4801
4802 snprintf(prop, sizeof(prop), "%sframe-inversion", prefix);
4803 frame = !!of_get_property(np, prop, NULL);
4804
4805 switch ((bit << 4) + frame) {
4806 case 0x11:
4807 format |= SND_SOC_DAIFMT_IB_IF;
4808 break;
4809 case 0x10:
4810 format |= SND_SOC_DAIFMT_IB_NF;
4811 break;
4812 case 0x01:
4813 format |= SND_SOC_DAIFMT_NB_IF;
4814 break;
4815 default:
4816 /* SND_SOC_DAIFMT_NB_NF is default */
4817 break;
4818 }
4819
4820 /*
4821 * check "[prefix]bitclock-master"
4822 * check "[prefix]frame-master"
4823 * SND_SOC_DAIFMT_MASTER_MASK area
4824 */
4825 snprintf(prop, sizeof(prop), "%sbitclock-master", prefix);
4826 bit = !!of_get_property(np, prop, NULL);
389cb834
JS		 4827 if (bit && bitclkmaster)
4828 *bitclkmaster = of_parse_phandle(np, prop, 0);
a7930ed4
KM		 4829
4830 snprintf(prop, sizeof(prop), "%sframe-master", prefix);
4831 frame = !!of_get_property(np, prop, NULL);
389cb834
JS		 4832 if (frame && framemaster)
4833 *framemaster = of_parse_phandle(np, prop, 0);
a7930ed4
KM		 4834
4835 switch ((bit << 4) + frame) {
4836 case 0x11:
4837 format |= SND_SOC_DAIFMT_CBM_CFM;
4838 break;
4839 case 0x10:
4840 format |= SND_SOC_DAIFMT_CBM_CFS;
4841 break;
4842 case 0x01:
4843 format |= SND_SOC_DAIFMT_CBS_CFM;
4844 break;
4845 default:
4846 format |= SND_SOC_DAIFMT_CBS_CFS;
4847 break;
4848 }
4849
4850 return format;
4851}
4852EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
4853
cb470087
KM		 4854int snd_soc_of_get_dai_name(struct device_node *of_node,
4855 const char **dai_name)
4856{
4857 struct snd_soc_component *pos;
4858 struct of_phandle_args args;
4859 int ret;
4860
4861 ret = of_parse_phandle_with_args(of_node, "sound-dai",
4862 "#sound-dai-cells", 0, &args);
4863 if (ret)
4864 return ret;
4865
4866 ret = -EPROBE_DEFER;
4867
4868 mutex_lock(&client_mutex);
4869 list_for_each_entry(pos, &component_list, list) {
4870 if (pos->dev->of_node != args.np)
4871 continue;
4872
6833c452
KM		 4873 if (pos->driver->of_xlate_dai_name) {
4874 ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
4875 } else {
4876 int id = -1;
4877
4878 switch (args.args_count) {
4879 case 0:
4880 id = 0; /* same as dai_drv[0] */
4881 break;
4882 case 1:
4883 id = args.args[0];
4884 break;
4885 default:
4886 /* not supported */
4887 break;
4888 }
4889
4890 if (id < 0 || id >= pos->num_dai) {
4891 ret = -EINVAL;
3dcba280 4892 continue;
6833c452 4893 }
e41975ed
XL		 4894
4895 ret = 0;
4896
4897 *dai_name = pos->dai_drv[id].name;
4898 if (!*dai_name)
4899 *dai_name = pos->name;
cb470087
KM		 4900 }
4901
cb470087
KM		 4902 break;
4903 }
4904 mutex_unlock(&client_mutex);
4905
4906 of_node_put(args.np);
4907
4908 return ret;
4909}
4910EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name);
4911
c9b3a40f 4912static int __init snd_soc_init(void)
db2a4165 4913{
384c89e2 4914#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 4915 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
4916 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
0837fc62 4917 pr_warn("ASoC: Failed to create debugfs directory\n");
8a9dab1a 4918 snd_soc_debugfs_root = NULL;
384c89e2 4919 }
c3c5a19a 4920
8a9dab1a 4921 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
c3c5a19a
MB		 4922 &codec_list_fops))
4923 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4924
8a9dab1a 4925 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
f3208780
MB		 4926 &dai_list_fops))
4927 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
19c7ac27 4928
8a9dab1a 4929 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
19c7ac27
MB		 4930 &platform_list_fops))
4931 pr_warn("ASoC: Failed to create platform list debugfs file\n");
384c89e2
MB		 4932#endif
4933
fb257897
MB		 4934 snd_soc_util_init();
4935
db2a4165
FM		 4936 return platform_driver_register(&soc_driver);
4937}
4abe8e16 4938module_init(snd_soc_init);
db2a4165 4939
7d8c16a6 4940static void __exit snd_soc_exit(void)
db2a4165 4941{
fb257897
MB		 4942 snd_soc_util_exit();
4943
384c89e2 4944#ifdef CONFIG_DEBUG_FS
8a9dab1a 4945 debugfs_remove_recursive(snd_soc_debugfs_root);
384c89e2 4946#endif
3ff3f64b 4947 platform_driver_unregister(&soc_driver);
db2a4165 4948}
db2a4165
FM		 4949module_exit(snd_soc_exit);
4950
4951/* Module information */
d331124d 4952MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
db2a4165
FM		 4953MODULE_DESCRIPTION("ALSA SoC Core");
4954MODULE_LICENSE("GPL");
8b45a209 4955MODULE_ALIAS("platform:soc-audio");
Linux 6.x block layer and io_uring tree(s)