blob: fc0fd3485e7da414e0a1fdc042984c01ba4fbc51 [file] [log] [blame]
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001/*
2 * soc-core.c -- ALSA SoC Audio Layer
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
Liam Girdwood0664d882006-12-18 14:39:02 +01005 * Copyright 2005 Openedhand Ltd.
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00006 * Copyright (C) 2010 Slimlogic Ltd.
7 * Copyright (C) 2010 Texas Instruments Inc.
Liam Girdwood0664d882006-12-18 14:39:02 +01008 *
Liam Girdwoodd3311242008-10-12 13:17:36 +01009 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
Liam Girdwood0664d882006-12-18 14:39:02 +010010 * with code, comments and ideas from :-
11 * Richard Purdie <richard@openedhand.com>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020012 *
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 *
Frank Mandarinodb2a4162006-10-06 18:31:09 +020018 * 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>
Troy Kisky12ef1932008-10-13 17:42:14 -070031#include <linux/debugfs.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020032#include <linux/platform_device.h>
Mark Brownf0e8ed82011-09-20 11:41:54 +010033#include <linux/ctype.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090034#include <linux/slab.h>
Stephen Warrenbec4fa02011-12-12 15:55:34 -070035#include <linux/of.h>
Marek Vasut474828a2009-07-22 13:01:03 +020036#include <sound/ac97_codec.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020037#include <sound/core.h>
Mark Brown3028eb82010-12-05 12:22:46 +000038#include <sound/jack.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020039#include <sound/pcm.h>
40#include <sound/pcm_params.h>
41#include <sound/soc.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020042#include <sound/initval.h>
43
Mark Browna8b1d342010-11-03 18:05:58 -040044#define CREATE_TRACE_POINTS
45#include <trace/events/asoc.h>
46
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000047#define NAME_SIZE 32
48
Frank Mandarinodb2a4162006-10-06 18:31:09 +020049static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq);
50
Mark Brown384c89e2008-12-03 17:34:03 +000051#ifdef CONFIG_DEBUG_FS
Mark Brown8a9dab12011-01-10 22:25:21 +000052struct dentry *snd_soc_debugfs_root;
53EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
Mark Brown384c89e2008-12-03 17:34:03 +000054#endif
55
Mark Brownc5af3a22008-11-28 13:29:45 +000056static DEFINE_MUTEX(client_mutex);
57static LIST_HEAD(card_list);
Mark Brown91151712008-11-30 23:31:24 +000058static LIST_HEAD(dai_list);
Mark Brown12a48a8c2008-12-03 19:40:30 +000059static LIST_HEAD(platform_list);
Mark Brown0d0cf002008-12-10 14:32:45 +000060static LIST_HEAD(codec_list);
Mark Brownc5af3a22008-11-28 13:29:45 +000061
Frank Mandarinodb2a4162006-10-06 18:31:09 +020062/*
63 * This is a timeout to do a DAPM powerdown after a stream is closed().
64 * It can be used to eliminate pops between different playback streams, e.g.
65 * between two audio tracks.
66 */
67static int pmdown_time = 5000;
68module_param(pmdown_time, int, 0);
69MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
70
Dimitris Papastamos2bc9a812011-02-01 12:24:08 +000071/* returns the minimum number of bytes needed to represent
72 * a particular given value */
73static int min_bytes_needed(unsigned long val)
74{
75 int c = 0;
76 int i;
77
78 for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c)
79 if (val & (1UL << i))
80 break;
81 c = (sizeof val * 8) - c;
82 if (!c || (c % 8))
83 c = (c + 8) / 8;
84 else
85 c /= 8;
86 return c;
87}
88
Dimitris Papastamos13fd1792011-02-02 13:58:58 +000089/* fill buf which is 'len' bytes with a formatted
90 * string of the form 'reg: value\n' */
91static int format_register_str(struct snd_soc_codec *codec,
92 unsigned int reg, char *buf, size_t len)
Mark Brown2624d5f2009-11-03 21:56:13 +000093{
Stephen Warren00b317a2011-04-01 14:50:44 -060094 int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
95 int regsize = codec->driver->reg_word_size * 2;
Dimitris Papastamos13fd1792011-02-02 13:58:58 +000096 int ret;
97 char tmpbuf[len + 1];
98 char regbuf[regsize + 1];
99
100 /* since tmpbuf is allocated on the stack, warn the callers if they
101 * try to abuse this function */
102 WARN_ON(len > 63);
103
104 /* +2 for ': ' and + 1 for '\n' */
105 if (wordsize + regsize + 2 + 1 != len)
106 return -EINVAL;
107
Mark Brown25032c12011-08-01 13:52:48 +0900108 ret = snd_soc_read(codec, reg);
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000109 if (ret < 0) {
110 memset(regbuf, 'X', regsize);
111 regbuf[regsize] = '\0';
112 } else {
113 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
114 }
115
116 /* prepare the buffer */
117 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
118 /* copy it back to the caller without the '\0' */
119 memcpy(buf, tmpbuf, len);
120
121 return 0;
122}
123
124/* codec register dump */
125static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
126 size_t count, loff_t pos)
127{
128 int i, step = 1;
Dimitris Papastamos2bc9a812011-02-01 12:24:08 +0000129 int wordsize, regsize;
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000130 int len;
131 size_t total = 0;
132 loff_t p = 0;
Dimitris Papastamos2bc9a812011-02-01 12:24:08 +0000133
Stephen Warren00b317a2011-04-01 14:50:44 -0600134 wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
135 regsize = codec->driver->reg_word_size * 2;
Mark Brown2624d5f2009-11-03 21:56:13 +0000136
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000137 len = wordsize + regsize + 2 + 1;
138
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000139 if (!codec->driver->reg_cache_size)
Mark Brown2624d5f2009-11-03 21:56:13 +0000140 return 0;
141
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000142 if (codec->driver->reg_cache_step)
143 step = codec->driver->reg_cache_step;
Mark Brown2624d5f2009-11-03 21:56:13 +0000144
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000145 for (i = 0; i < codec->driver->reg_cache_size; i += step) {
Lars-Peter Clausenb92d1502011-08-27 18:24:14 +0200146 if (!snd_soc_codec_readable_register(codec, i))
Mark Brown2624d5f2009-11-03 21:56:13 +0000147 continue;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000148 if (codec->driver->display_register) {
149 count += codec->driver->display_register(codec, buf + count,
Mark Brown2624d5f2009-11-03 21:56:13 +0000150 PAGE_SIZE - count, i);
Mark Brown5164d742010-07-14 16:14:33 +0100151 } else {
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000152 /* only support larger than PAGE_SIZE bytes debugfs
153 * entries for the default case */
154 if (p >= pos) {
155 if (total + len >= count - 1)
156 break;
157 format_register_str(codec, i, buf + total, len);
158 total += len;
159 }
160 p += len;
Mark Brown5164d742010-07-14 16:14:33 +0100161 }
Mark Brown2624d5f2009-11-03 21:56:13 +0000162 }
163
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000164 total = min(total, count - 1);
Mark Brown2624d5f2009-11-03 21:56:13 +0000165
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000166 return total;
Mark Brown2624d5f2009-11-03 21:56:13 +0000167}
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000168
Mark Brown2624d5f2009-11-03 21:56:13 +0000169static ssize_t codec_reg_show(struct device *dev,
170 struct device_attribute *attr, char *buf)
171{
Mark Brown36ae1a92012-01-06 17:12:45 -0800172 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000173
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000174 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
Mark Brown2624d5f2009-11-03 21:56:13 +0000175}
176
177static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
178
Mark Browndbe21402010-02-12 11:37:24 +0000179static ssize_t pmdown_time_show(struct device *dev,
180 struct device_attribute *attr, char *buf)
181{
Mark Brown36ae1a92012-01-06 17:12:45 -0800182 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
Mark Browndbe21402010-02-12 11:37:24 +0000183
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000184 return sprintf(buf, "%ld\n", rtd->pmdown_time);
Mark Browndbe21402010-02-12 11:37:24 +0000185}
186
187static ssize_t pmdown_time_set(struct device *dev,
188 struct device_attribute *attr,
189 const char *buf, size_t count)
190{
Mark Brown36ae1a92012-01-06 17:12:45 -0800191 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
Mark Brownc593b522010-10-27 20:11:17 -0700192 int ret;
Mark Browndbe21402010-02-12 11:37:24 +0000193
Mark Brownc593b522010-10-27 20:11:17 -0700194 ret = strict_strtol(buf, 10, &rtd->pmdown_time);
195 if (ret)
196 return ret;
Mark Browndbe21402010-02-12 11:37:24 +0000197
198 return count;
199}
200
201static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
202
Mark Brown2624d5f2009-11-03 21:56:13 +0000203#ifdef CONFIG_DEBUG_FS
204static int codec_reg_open_file(struct inode *inode, struct file *file)
205{
206 file->private_data = inode->i_private;
207 return 0;
208}
209
210static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000211 size_t count, loff_t *ppos)
Mark Brown2624d5f2009-11-03 21:56:13 +0000212{
213 ssize_t ret;
214 struct snd_soc_codec *codec = file->private_data;
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000215 char *buf;
216
217 if (*ppos < 0 || !count)
218 return -EINVAL;
219
220 buf = kmalloc(count, GFP_KERNEL);
Mark Brown2624d5f2009-11-03 21:56:13 +0000221 if (!buf)
222 return -ENOMEM;
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000223
224 ret = soc_codec_reg_show(codec, buf, count, *ppos);
225 if (ret >= 0) {
226 if (copy_to_user(user_buf, buf, ret)) {
227 kfree(buf);
228 return -EFAULT;
229 }
230 *ppos += ret;
231 }
232
Mark Brown2624d5f2009-11-03 21:56:13 +0000233 kfree(buf);
234 return ret;
235}
236
237static ssize_t codec_reg_write_file(struct file *file,
238 const char __user *user_buf, size_t count, loff_t *ppos)
239{
240 char buf[32];
Stephen Boyd34e268d2011-05-12 16:50:10 -0700241 size_t buf_size;
Mark Brown2624d5f2009-11-03 21:56:13 +0000242 char *start = buf;
243 unsigned long reg, value;
Mark Brown2624d5f2009-11-03 21:56:13 +0000244 struct snd_soc_codec *codec = file->private_data;
245
246 buf_size = min(count, (sizeof(buf)-1));
247 if (copy_from_user(buf, user_buf, buf_size))
248 return -EFAULT;
249 buf[buf_size] = 0;
250
Mark Brown2624d5f2009-11-03 21:56:13 +0000251 while (*start == ' ')
252 start++;
253 reg = simple_strtoul(start, &start, 16);
Mark Brown2624d5f2009-11-03 21:56:13 +0000254 while (*start == ' ')
255 start++;
256 if (strict_strtoul(start, 16, &value))
257 return -EINVAL;
Mark Brown0d51a9c2011-01-06 16:04:57 +0000258
259 /* Userspace has been fiddling around behind the kernel's back */
260 add_taint(TAINT_USER);
261
Dimitris Papastamose4f078d2010-12-07 16:30:38 +0000262 snd_soc_write(codec, reg, value);
Mark Brown2624d5f2009-11-03 21:56:13 +0000263 return buf_size;
264}
265
266static const struct file_operations codec_reg_fops = {
267 .open = codec_reg_open_file,
268 .read = codec_reg_read_file,
269 .write = codec_reg_write_file,
Arnd Bergmann6038f372010-08-15 18:52:59 +0200270 .llseek = default_llseek,
Mark Brown2624d5f2009-11-03 21:56:13 +0000271};
272
273static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
274{
Jarkko Nikulad6ce4cf2010-11-05 20:35:20 +0200275 struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
276
277 codec->debugfs_codec_root = debugfs_create_dir(codec->name,
278 debugfs_card_root);
Mark Brown2624d5f2009-11-03 21:56:13 +0000279 if (!codec->debugfs_codec_root) {
Liam Girdwood64e60f92012-02-15 15:15:37 +0000280 dev_warn(codec->dev, "Failed to create codec debugfs directory\n");
Mark Brown2624d5f2009-11-03 21:56:13 +0000281 return;
282 }
283
Mark Brownaaee8ef2011-01-26 20:53:50 +0000284 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
285 &codec->cache_sync);
286 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
287 &codec->cache_only);
288
Mark Brown2624d5f2009-11-03 21:56:13 +0000289 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
290 codec->debugfs_codec_root,
291 codec, &codec_reg_fops);
292 if (!codec->debugfs_reg)
Liam Girdwood64e60f92012-02-15 15:15:37 +0000293 dev_warn(codec->dev, "Failed to create codec register debugfs file\n");
Mark Brown2624d5f2009-11-03 21:56:13 +0000294
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +0200295 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
Mark Brown2624d5f2009-11-03 21:56:13 +0000296}
297
298static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
299{
300 debugfs_remove_recursive(codec->debugfs_codec_root);
301}
302
Sebastien Guiriec731f1ab2012-02-15 15:25:31 +0000303static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
304{
305 struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
306
307 platform->debugfs_platform_root = debugfs_create_dir(platform->name,
308 debugfs_card_root);
309 if (!platform->debugfs_platform_root) {
310 dev_warn(platform->dev,
311 "Failed to create platform debugfs directory\n");
312 return;
313 }
314
315 snd_soc_dapm_debugfs_init(&platform->dapm,
316 platform->debugfs_platform_root);
317}
318
319static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
320{
321 debugfs_remove_recursive(platform->debugfs_platform_root);
322}
323
Mark Brownc3c5a192010-09-15 18:15:14 +0100324static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
325 size_t count, loff_t *ppos)
326{
327 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
Mark Brown2b194f9d2010-10-13 10:52:16 +0100328 ssize_t len, ret = 0;
Mark Brownc3c5a192010-09-15 18:15:14 +0100329 struct snd_soc_codec *codec;
330
331 if (!buf)
332 return -ENOMEM;
333
Mark Brown2b194f9d2010-10-13 10:52:16 +0100334 list_for_each_entry(codec, &codec_list, list) {
335 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
336 codec->name);
337 if (len >= 0)
338 ret += len;
339 if (ret > PAGE_SIZE) {
340 ret = PAGE_SIZE;
341 break;
342 }
343 }
Mark Brownc3c5a192010-09-15 18:15:14 +0100344
345 if (ret >= 0)
346 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
347
348 kfree(buf);
349
350 return ret;
351}
352
353static const struct file_operations codec_list_fops = {
354 .read = codec_list_read_file,
355 .llseek = default_llseek,/* read accesses f_pos */
356};
357
Mark Brownf3208782010-09-15 18:19:07 +0100358static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
359 size_t count, loff_t *ppos)
360{
361 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
Mark Brown2b194f9d2010-10-13 10:52:16 +0100362 ssize_t len, ret = 0;
Mark Brownf3208782010-09-15 18:19:07 +0100363 struct snd_soc_dai *dai;
364
365 if (!buf)
366 return -ENOMEM;
367
Mark Brown2b194f9d2010-10-13 10:52:16 +0100368 list_for_each_entry(dai, &dai_list, list) {
369 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name);
370 if (len >= 0)
371 ret += len;
372 if (ret > PAGE_SIZE) {
373 ret = PAGE_SIZE;
374 break;
375 }
376 }
Mark Brownf3208782010-09-15 18:19:07 +0100377
Mark Brown2b194f9d2010-10-13 10:52:16 +0100378 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
Mark Brownf3208782010-09-15 18:19:07 +0100379
380 kfree(buf);
381
382 return ret;
383}
384
385static const struct file_operations dai_list_fops = {
386 .read = dai_list_read_file,
387 .llseek = default_llseek,/* read accesses f_pos */
388};
389
Mark Brown19c7ac22010-09-15 18:22:40 +0100390static ssize_t platform_list_read_file(struct file *file,
391 char __user *user_buf,
392 size_t count, loff_t *ppos)
393{
394 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
Mark Brown2b194f9d2010-10-13 10:52:16 +0100395 ssize_t len, ret = 0;
Mark Brown19c7ac22010-09-15 18:22:40 +0100396 struct snd_soc_platform *platform;
397
398 if (!buf)
399 return -ENOMEM;
400
Mark Brown2b194f9d2010-10-13 10:52:16 +0100401 list_for_each_entry(platform, &platform_list, list) {
402 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
403 platform->name);
404 if (len >= 0)
405 ret += len;
406 if (ret > PAGE_SIZE) {
407 ret = PAGE_SIZE;
408 break;
409 }
410 }
Mark Brown19c7ac22010-09-15 18:22:40 +0100411
Mark Brown2b194f9d2010-10-13 10:52:16 +0100412 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
Mark Brown19c7ac22010-09-15 18:22:40 +0100413
414 kfree(buf);
415
416 return ret;
417}
418
419static const struct file_operations platform_list_fops = {
420 .read = platform_list_read_file,
421 .llseek = default_llseek,/* read accesses f_pos */
422};
423
Jarkko Nikulaa6052152010-11-05 20:35:19 +0200424static void soc_init_card_debugfs(struct snd_soc_card *card)
425{
426 card->debugfs_card_root = debugfs_create_dir(card->name,
Mark Brown8a9dab12011-01-10 22:25:21 +0000427 snd_soc_debugfs_root);
Jarkko Nikula3a45b862010-11-05 20:35:21 +0200428 if (!card->debugfs_card_root) {
Jarkko Nikulaa6052152010-11-05 20:35:19 +0200429 dev_warn(card->dev,
Lothar Waßmann7c08be82011-12-09 14:16:29 +0100430 "ASoC: Failed to create card debugfs directory\n");
Jarkko Nikula3a45b862010-11-05 20:35:21 +0200431 return;
432 }
433
434 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
435 card->debugfs_card_root,
436 &card->pop_time);
437 if (!card->debugfs_pop_time)
438 dev_warn(card->dev,
439 "Failed to create pop time debugfs file\n");
Jarkko Nikulaa6052152010-11-05 20:35:19 +0200440}
441
442static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
443{
444 debugfs_remove_recursive(card->debugfs_card_root);
445}
446
Mark Brown2624d5f2009-11-03 21:56:13 +0000447#else
448
449static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
450{
451}
452
453static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
454{
455}
Axel Linb95fccb2010-11-09 17:06:44 +0800456
Sebastien Guiriec731f1ab2012-02-15 15:25:31 +0000457static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
458{
459}
460
461static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
462{
463}
464
Axel Linb95fccb2010-11-09 17:06:44 +0800465static inline void soc_init_card_debugfs(struct snd_soc_card *card)
466{
467}
468
469static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
470{
471}
Mark Brown2624d5f2009-11-03 21:56:13 +0000472#endif
473
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200474#ifdef CONFIG_SND_SOC_AC97_BUS
475/* unregister ac97 codec */
476static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
477{
478 if (codec->ac97->dev.bus)
479 device_unregister(&codec->ac97->dev);
480 return 0;
481}
482
483/* stop no dev release warning */
484static void soc_ac97_device_release(struct device *dev){}
485
486/* register ac97 codec to bus */
487static int soc_ac97_dev_register(struct snd_soc_codec *codec)
488{
489 int err;
490
491 codec->ac97->dev.bus = &ac97_bus_type;
Mark Brown4ac5c612009-04-01 19:35:01 +0100492 codec->ac97->dev.parent = codec->card->dev;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200493 codec->ac97->dev.release = soc_ac97_device_release;
494
Kay Sieversbb072bf2008-11-02 03:50:35 +0100495 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000496 codec->card->snd_card->number, 0, codec->name);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200497 err = device_register(&codec->ac97->dev);
498 if (err < 0) {
499 snd_printk(KERN_ERR "Can't register ac97 bus\n");
500 codec->ac97->dev.bus = NULL;
501 return err;
502 }
503 return 0;
504}
505#endif
506
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000507#ifdef CONFIG_PM_SLEEP
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200508/* powers down audio subsystem for suspend */
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000509int snd_soc_suspend(struct device *dev)
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200510{
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000511 struct snd_soc_card *card = dev_get_drvdata(dev);
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200512 struct snd_soc_codec *codec;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200513 int i;
514
Daniel Macke3509ff2009-06-03 17:44:49 +0200515 /* If the initialization of this soc device failed, there is no codec
516 * associated with it. Just bail out in this case.
517 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000518 if (list_empty(&card->codec_dev_list))
Daniel Macke3509ff2009-06-03 17:44:49 +0200519 return 0;
520
Andy Green6ed25972008-06-13 16:24:05 +0100521 /* Due to the resume being scheduled into a workqueue we could
522 * suspend before that's finished - wait for it to complete.
523 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000524 snd_power_lock(card->snd_card);
525 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
526 snd_power_unlock(card->snd_card);
Andy Green6ed25972008-06-13 16:24:05 +0100527
528 /* we're going to block userspace touching us until resume completes */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000529 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
Andy Green6ed25972008-06-13 16:24:05 +0100530
Mark Browna00f90f2010-12-02 16:24:24 +0000531 /* mute any active DACs */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000532 for (i = 0; i < card->num_rtd; i++) {
533 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
534 struct snd_soc_dai_driver *drv = dai->driver;
Mark Brown3efab7d2010-05-09 13:25:43 +0100535
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000536 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100537 continue;
538
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000539 if (drv->ops->digital_mute && dai->playback_active)
540 drv->ops->digital_mute(dai, 1);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200541 }
542
Liam Girdwood4ccab3e2008-01-10 14:39:01 +0100543 /* suspend all pcms */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000544 for (i = 0; i < card->num_rtd; i++) {
545 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100546 continue;
547
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000548 snd_pcm_suspend_all(card->rtd[i].pcm);
Mark Brown3efab7d2010-05-09 13:25:43 +0100549 }
Liam Girdwood4ccab3e2008-01-10 14:39:01 +0100550
Mark Brown87506542008-11-18 20:50:34 +0000551 if (card->suspend_pre)
Mark Brown70b2ac12011-01-26 14:05:25 +0000552 card->suspend_pre(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200553
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000554 for (i = 0; i < card->num_rtd; i++) {
555 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
556 struct snd_soc_platform *platform = card->rtd[i].platform;
Mark Brown3efab7d2010-05-09 13:25:43 +0100557
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000558 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100559 continue;
560
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000561 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
562 cpu_dai->driver->suspend(cpu_dai);
563 if (platform->driver->suspend && !platform->suspended) {
564 platform->driver->suspend(cpu_dai);
565 platform->suspended = 1;
Mark Brown1547aba2010-05-07 21:11:40 +0100566 }
567 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200568
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000569 /* close any waiting streams and save state */
570 for (i = 0; i < card->num_rtd; i++) {
Tejun Heo5b84ba22010-12-11 17:51:26 +0100571 flush_delayed_work_sync(&card->rtd[i].delayed_work);
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200572 card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000573 }
Mark Brown3efab7d2010-05-09 13:25:43 +0100574
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000575 for (i = 0; i < card->num_rtd; i++) {
Mark Brown7bd3a6f2012-02-16 15:03:27 -0800576 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000577
578 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100579 continue;
580
Mark Brown7bd3a6f2012-02-16 15:03:27 -0800581 snd_soc_dapm_stream_event(&card->rtd[i],
582 SNDRV_PCM_STREAM_PLAYBACK,
583 codec_dai,
584 SND_SOC_DAPM_STREAM_SUSPEND);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000585
Mark Brown7bd3a6f2012-02-16 15:03:27 -0800586 snd_soc_dapm_stream_event(&card->rtd[i],
587 SNDRV_PCM_STREAM_CAPTURE,
588 codec_dai,
589 SND_SOC_DAPM_STREAM_SUSPEND);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000590 }
591
592 /* suspend all CODECs */
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200593 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000594 /* If there are paths active then the CODEC will be held with
595 * bias _ON and should not be suspended. */
596 if (!codec->suspended && codec->driver->suspend) {
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200597 switch (codec->dapm.bias_level) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000598 case SND_SOC_BIAS_STANDBY:
Mark Brown125a25d2012-01-31 15:49:10 +0000599 /*
600 * If the CODEC is capable of idle
601 * bias off then being in STANDBY
602 * means it's doing something,
603 * otherwise fall through.
604 */
605 if (codec->dapm.idle_bias_off) {
606 dev_dbg(codec->dev,
607 "idle_bias_off CODEC on over suspend\n");
608 break;
609 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000610 case SND_SOC_BIAS_OFF:
Lars-Peter Clausen84b315e2011-12-02 10:18:28 +0100611 codec->driver->suspend(codec);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000612 codec->suspended = 1;
Mark Brown7be4ba22011-07-18 13:17:13 +0900613 codec->cache_sync = 1;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000614 break;
615 default:
616 dev_dbg(codec->dev, "CODEC is on over suspend\n");
617 break;
618 }
619 }
620 }
621
622 for (i = 0; i < card->num_rtd; i++) {
623 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
624
625 if (card->rtd[i].dai_link->ignore_suspend)
626 continue;
627
628 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
629 cpu_dai->driver->suspend(cpu_dai);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200630 }
631
Mark Brown87506542008-11-18 20:50:34 +0000632 if (card->suspend_post)
Mark Brown70b2ac12011-01-26 14:05:25 +0000633 card->suspend_post(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200634
635 return 0;
636}
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000637EXPORT_SYMBOL_GPL(snd_soc_suspend);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200638
Andy Green6ed25972008-06-13 16:24:05 +0100639/* deferred resume work, so resume can complete before we finished
640 * setting our codec back up, which can be very slow on I2C
641 */
642static void soc_resume_deferred(struct work_struct *work)
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200643{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000644 struct snd_soc_card *card =
645 container_of(work, struct snd_soc_card, deferred_resume_work);
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200646 struct snd_soc_codec *codec;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200647 int i;
648
Andy Green6ed25972008-06-13 16:24:05 +0100649 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
650 * so userspace apps are blocked from touching us
651 */
652
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000653 dev_dbg(card->dev, "starting resume work\n");
Andy Green6ed25972008-06-13 16:24:05 +0100654
Mark Brown99497882010-05-07 20:24:05 +0100655 /* Bring us up into D2 so that DAPM starts enabling things */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000656 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
Mark Brown99497882010-05-07 20:24:05 +0100657
Mark Brown87506542008-11-18 20:50:34 +0000658 if (card->resume_pre)
Mark Brown70b2ac12011-01-26 14:05:25 +0000659 card->resume_pre(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200660
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000661 /* resume AC97 DAIs */
662 for (i = 0; i < card->num_rtd; i++) {
663 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
Mark Brown3efab7d2010-05-09 13:25:43 +0100664
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000665 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100666 continue;
667
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000668 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
669 cpu_dai->driver->resume(cpu_dai);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200670 }
671
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200672 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000673 /* If the CODEC was idle over suspend then it will have been
674 * left with bias OFF or STANDBY and suspended so we must now
675 * resume. Otherwise the suspend was suppressed.
676 */
677 if (codec->driver->resume && codec->suspended) {
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200678 switch (codec->dapm.bias_level) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000679 case SND_SOC_BIAS_STANDBY:
680 case SND_SOC_BIAS_OFF:
681 codec->driver->resume(codec);
682 codec->suspended = 0;
683 break;
684 default:
685 dev_dbg(codec->dev, "CODEC was on over suspend\n");
686 break;
687 }
Mark Brown1547aba2010-05-07 21:11:40 +0100688 }
689 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200690
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000691 for (i = 0; i < card->num_rtd; i++) {
Mark Brown7bd3a6f2012-02-16 15:03:27 -0800692 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
Mark Brown3efab7d2010-05-09 13:25:43 +0100693
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000694 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100695 continue;
696
Mark Brown7bd3a6f2012-02-16 15:03:27 -0800697 snd_soc_dapm_stream_event(&card->rtd[i],
698 SNDRV_PCM_STREAM_PLAYBACK, codec_dai,
699 SND_SOC_DAPM_STREAM_RESUME);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000700
Mark Brown7bd3a6f2012-02-16 15:03:27 -0800701 snd_soc_dapm_stream_event(&card->rtd[i],
702 SNDRV_PCM_STREAM_CAPTURE, codec_dai,
703 SND_SOC_DAPM_STREAM_RESUME);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200704 }
705
Mark Brown3ff3f642008-05-19 12:32:25 +0200706 /* unmute any active DACs */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000707 for (i = 0; i < card->num_rtd; i++) {
708 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
709 struct snd_soc_dai_driver *drv = dai->driver;
Mark Brown3efab7d2010-05-09 13:25:43 +0100710
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000711 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100712 continue;
713
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000714 if (drv->ops->digital_mute && dai->playback_active)
715 drv->ops->digital_mute(dai, 0);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200716 }
717
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000718 for (i = 0; i < card->num_rtd; i++) {
719 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
720 struct snd_soc_platform *platform = card->rtd[i].platform;
Mark Brown3efab7d2010-05-09 13:25:43 +0100721
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000722 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100723 continue;
724
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000725 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
726 cpu_dai->driver->resume(cpu_dai);
727 if (platform->driver->resume && platform->suspended) {
728 platform->driver->resume(cpu_dai);
729 platform->suspended = 0;
730 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200731 }
732
Mark Brown87506542008-11-18 20:50:34 +0000733 if (card->resume_post)
Mark Brown70b2ac12011-01-26 14:05:25 +0000734 card->resume_post(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200735
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000736 dev_dbg(card->dev, "resume work completed\n");
Andy Green6ed25972008-06-13 16:24:05 +0100737
738 /* userspace can access us now we are back as we were before */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000739 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
Andy Green6ed25972008-06-13 16:24:05 +0100740}
741
742/* powers up audio subsystem after a suspend */
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000743int snd_soc_resume(struct device *dev)
Andy Green6ed25972008-06-13 16:24:05 +0100744{
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000745 struct snd_soc_card *card = dev_get_drvdata(dev);
Stephen Warren82e14e82011-05-25 14:06:41 -0600746 int i, ac97_control = 0;
Peter Ujfalusib9dd94a2010-02-22 13:27:13 +0200747
Eric Miao5ff1ddf2011-11-23 22:37:00 +0800748 /* If the initialization of this soc device failed, there is no codec
749 * associated with it. Just bail out in this case.
750 */
751 if (list_empty(&card->codec_dev_list))
752 return 0;
753
Mark Brown64ab9ba2009-03-31 11:27:03 +0100754 /* AC97 devices might have other drivers hanging off them so
755 * need to resume immediately. Other drivers don't have that
756 * problem and may take a substantial amount of time to resume
757 * due to I/O costs and anti-pop so handle them out of line.
758 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000759 for (i = 0; i < card->num_rtd; i++) {
760 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
Stephen Warren82e14e82011-05-25 14:06:41 -0600761 ac97_control |= cpu_dai->driver->ac97_control;
762 }
763 if (ac97_control) {
764 dev_dbg(dev, "Resuming AC97 immediately\n");
765 soc_resume_deferred(&card->deferred_resume_work);
766 } else {
767 dev_dbg(dev, "Scheduling resume work\n");
768 if (!schedule_work(&card->deferred_resume_work))
769 dev_err(dev, "resume work item may be lost\n");
Mark Brown64ab9ba2009-03-31 11:27:03 +0100770 }
Andy Green6ed25972008-06-13 16:24:05 +0100771
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200772 return 0;
773}
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000774EXPORT_SYMBOL_GPL(snd_soc_resume);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200775#else
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000776#define snd_soc_suspend NULL
777#define snd_soc_resume NULL
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200778#endif
779
Lars-Peter Clausen85e76522011-11-23 11:40:40 +0100780static const struct snd_soc_dai_ops null_dai_ops = {
Barry Song02a06d32009-10-16 18:13:38 +0800781};
782
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000783static int soc_bind_dai_link(struct snd_soc_card *card, int num)
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200784{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000785 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
786 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
Mark Brownfe3e78e2009-11-03 22:13:13 +0000787 struct snd_soc_codec *codec;
Mark Brown435c5e22008-12-04 15:32:53 +0000788 struct snd_soc_platform *platform;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000789 struct snd_soc_dai *codec_dai, *cpu_dai;
Mark Brown848dd8b2011-04-27 18:16:32 +0100790 const char *platform_name;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200791
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000792 if (rtd->complete)
793 return 1;
794 dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num);
Mark Brown63084192008-12-02 15:08:03 +0000795
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000796 /* do we already have the CPU DAI for this link ? */
797 if (rtd->cpu_dai) {
798 goto find_codec;
799 }
800 /* no, then find CPU DAI from registered DAIs*/
801 list_for_each_entry(cpu_dai, &dai_list, list) {
Stephen Warren5a504962011-12-21 10:40:59 -0700802 if (dai_link->cpu_dai_of_node) {
803 if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node)
804 continue;
805 } else {
806 if (strcmp(cpu_dai->name, dai_link->cpu_dai_name))
807 continue;
808 }
Stephen Warren2610ab72011-12-07 13:58:27 -0700809
810 rtd->cpu_dai = cpu_dai;
811 goto find_codec;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000812 }
813 dev_dbg(card->dev, "CPU DAI %s not registered\n",
814 dai_link->cpu_dai_name);
815
816find_codec:
817 /* do we already have the CODEC for this link ? */
818 if (rtd->codec) {
819 goto find_platform;
Mark Brownc5af3a22008-11-28 13:29:45 +0000820 }
821
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000822 /* no, then find CODEC from registered CODECs*/
823 list_for_each_entry(codec, &codec_list, list) {
Stephen Warren5a504962011-12-21 10:40:59 -0700824 if (dai_link->codec_of_node) {
825 if (codec->dev->of_node != dai_link->codec_of_node)
826 continue;
827 } else {
828 if (strcmp(codec->name, dai_link->codec_name))
829 continue;
830 }
Mark Brown6b05eda2008-12-08 19:26:48 +0000831
Stephen Warren2610ab72011-12-07 13:58:27 -0700832 rtd->codec = codec;
833
834 /*
835 * CODEC found, so find CODEC DAI from registered DAIs from
836 * this CODEC
837 */
838 list_for_each_entry(codec_dai, &dai_list, list) {
839 if (codec->dev == codec_dai->dev &&
840 !strcmp(codec_dai->name,
841 dai_link->codec_dai_name)) {
842
843 rtd->codec_dai = codec_dai;
844 goto find_platform;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000845 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000846 }
Stephen Warren2610ab72011-12-07 13:58:27 -0700847 dev_dbg(card->dev, "CODEC DAI %s not registered\n",
848 dai_link->codec_dai_name);
849
850 goto find_platform;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000851 }
852 dev_dbg(card->dev, "CODEC %s not registered\n",
853 dai_link->codec_name);
854
855find_platform:
Mark Brown848dd8b2011-04-27 18:16:32 +0100856 /* do we need a platform? */
857 if (rtd->platform)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000858 goto out;
Mark Brown848dd8b2011-04-27 18:16:32 +0100859
860 /* if there's no platform we match on the empty platform */
861 platform_name = dai_link->platform_name;
Stephen Warren5a504962011-12-21 10:40:59 -0700862 if (!platform_name && !dai_link->platform_of_node)
Mark Brown848dd8b2011-04-27 18:16:32 +0100863 platform_name = "snd-soc-dummy";
864
865 /* no, then find one from the set of registered platforms */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000866 list_for_each_entry(platform, &platform_list, list) {
Stephen Warren5a504962011-12-21 10:40:59 -0700867 if (dai_link->platform_of_node) {
868 if (platform->dev->of_node !=
869 dai_link->platform_of_node)
870 continue;
871 } else {
872 if (strcmp(platform->name, platform_name))
873 continue;
874 }
Stephen Warren2610ab72011-12-07 13:58:27 -0700875
876 rtd->platform = platform;
877 goto out;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000878 }
879
880 dev_dbg(card->dev, "platform %s not registered\n",
881 dai_link->platform_name);
882 return 0;
883
884out:
885 /* mark rtd as complete if we found all 4 of our client devices */
886 if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) {
887 rtd->complete = 1;
888 card->num_rtd++;
889 }
890 return 1;
891}
892
Jarkko Nikula589c3562010-12-06 16:27:07 +0200893static void soc_remove_codec(struct snd_soc_codec *codec)
894{
895 int err;
896
897 if (codec->driver->remove) {
898 err = codec->driver->remove(codec);
899 if (err < 0)
900 dev_err(codec->dev,
901 "asoc: failed to remove %s: %d\n",
902 codec->name, err);
903 }
904
905 /* Make sure all DAPM widgets are freed */
906 snd_soc_dapm_free(&codec->dapm);
907
908 soc_cleanup_codec_debugfs(codec);
909 codec->probed = 0;
910 list_del(&codec->card_list);
911 module_put(codec->dev->driver->owner);
912}
913
Liam Girdwood0168bf02011-06-07 16:08:05 +0100914static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000915{
916 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
917 struct snd_soc_codec *codec = rtd->codec;
918 struct snd_soc_platform *platform = rtd->platform;
919 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
920 int err;
921
922 /* unregister the rtd device */
923 if (rtd->dev_registered) {
Mark Brown36ae1a92012-01-06 17:12:45 -0800924 device_remove_file(rtd->dev, &dev_attr_pmdown_time);
925 device_remove_file(rtd->dev, &dev_attr_codec_reg);
926 device_unregister(rtd->dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000927 rtd->dev_registered = 0;
928 }
929
930 /* remove the CODEC DAI */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100931 if (codec_dai && codec_dai->probed &&
932 codec_dai->driver->remove_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000933 if (codec_dai->driver->remove) {
934 err = codec_dai->driver->remove(codec_dai);
935 if (err < 0)
Fabio Estevam0837fc62012-02-17 19:40:38 -0200936 pr_err("asoc: failed to remove %s: %d\n",
937 codec_dai->name, err);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000938 }
939 codec_dai->probed = 0;
940 list_del(&codec_dai->card_list);
941 }
942
943 /* remove the platform */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100944 if (platform && platform->probed &&
945 platform->driver->remove_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000946 if (platform->driver->remove) {
947 err = platform->driver->remove(platform);
948 if (err < 0)
Fabio Estevam0837fc62012-02-17 19:40:38 -0200949 pr_err("asoc: failed to remove %s: %d\n",
950 platform->name, err);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000951 }
Liam Girdwood675c4962012-01-16 15:25:37 +0000952
953 /* Make sure all DAPM widgets are freed */
954 snd_soc_dapm_free(&platform->dapm);
955
Sebastien Guiriec731f1ab2012-02-15 15:25:31 +0000956 soc_cleanup_platform_debugfs(platform);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000957 platform->probed = 0;
958 list_del(&platform->card_list);
959 module_put(platform->dev->driver->owner);
960 }
961
962 /* remove the CODEC */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100963 if (codec && codec->probed &&
964 codec->driver->remove_order == order)
Jarkko Nikula589c3562010-12-06 16:27:07 +0200965 soc_remove_codec(codec);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000966
967 /* remove the cpu_dai */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100968 if (cpu_dai && cpu_dai->probed &&
969 cpu_dai->driver->remove_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000970 if (cpu_dai->driver->remove) {
971 err = cpu_dai->driver->remove(cpu_dai);
972 if (err < 0)
Fabio Estevam0837fc62012-02-17 19:40:38 -0200973 pr_err("asoc: failed to remove %s: %d\n",
974 cpu_dai->name, err);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000975 }
976 cpu_dai->probed = 0;
977 list_del(&cpu_dai->card_list);
978 module_put(cpu_dai->dev->driver->owner);
979 }
980}
981
Kuninori Morimoto0671fd82011-04-08 14:50:44 +0900982static void soc_remove_dai_links(struct snd_soc_card *card)
983{
Liam Girdwood0168bf02011-06-07 16:08:05 +0100984 int dai, order;
Kuninori Morimoto0671fd82011-04-08 14:50:44 +0900985
Liam Girdwood0168bf02011-06-07 16:08:05 +0100986 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
987 order++) {
988 for (dai = 0; dai < card->num_rtd; dai++)
989 soc_remove_dai_link(card, dai, order);
990 }
Kuninori Morimoto0671fd82011-04-08 14:50:44 +0900991 card->num_rtd = 0;
992}
993
Jarkko Nikulaead9b912010-11-13 20:40:44 +0200994static void soc_set_name_prefix(struct snd_soc_card *card,
995 struct snd_soc_codec *codec)
996{
997 int i;
998
Dimitris Papastamosff819b82010-12-02 14:53:03 +0000999 if (card->codec_conf == NULL)
Jarkko Nikulaead9b912010-11-13 20:40:44 +02001000 return;
1001
Dimitris Papastamosff819b82010-12-02 14:53:03 +00001002 for (i = 0; i < card->num_configs; i++) {
1003 struct snd_soc_codec_conf *map = &card->codec_conf[i];
Jarkko Nikulaead9b912010-11-13 20:40:44 +02001004 if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
1005 codec->name_prefix = map->name_prefix;
1006 break;
1007 }
1008 }
1009}
1010
Jarkko Nikula589c3562010-12-06 16:27:07 +02001011static int soc_probe_codec(struct snd_soc_card *card,
1012 struct snd_soc_codec *codec)
1013{
1014 int ret = 0;
Mark Brown89b95ac02011-03-07 16:38:44 +00001015 const struct snd_soc_codec_driver *driver = codec->driver;
Mark Brown888df392012-02-16 19:37:51 -08001016 struct snd_soc_dai *dai;
Jarkko Nikula589c3562010-12-06 16:27:07 +02001017
1018 codec->card = card;
1019 codec->dapm.card = card;
1020 soc_set_name_prefix(card, codec);
1021
Jarkko Nikula70d29332011-01-27 16:24:22 +02001022 if (!try_module_get(codec->dev->driver->owner))
1023 return -ENODEV;
1024
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001025 soc_init_codec_debugfs(codec);
1026
Lars-Peter Clausen77530152011-05-05 16:59:09 +02001027 if (driver->dapm_widgets)
1028 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
1029 driver->num_dapm_widgets);
1030
Mark Brown888df392012-02-16 19:37:51 -08001031 /* Create DAPM widgets for each DAI stream */
1032 list_for_each_entry(dai, &dai_list, list) {
1033 if (dai->dev != codec->dev)
1034 continue;
1035
1036 snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
1037 }
1038
Mark Brown33c5f962011-08-22 18:40:30 +01001039 codec->dapm.idle_bias_off = driver->idle_bias_off;
1040
Mark Brown89b95ac02011-03-07 16:38:44 +00001041 if (driver->probe) {
1042 ret = driver->probe(codec);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001043 if (ret < 0) {
1044 dev_err(codec->dev,
1045 "asoc: failed to probe CODEC %s: %d\n",
1046 codec->name, ret);
Jarkko Nikula70d29332011-01-27 16:24:22 +02001047 goto err_probe;
Jarkko Nikula589c3562010-12-06 16:27:07 +02001048 }
1049 }
1050
Mark Brownb7af1da2011-04-07 19:18:44 +09001051 if (driver->controls)
Liam Girdwood022658b2012-02-03 17:43:09 +00001052 snd_soc_add_codec_controls(codec, driver->controls,
Mark Brownb7af1da2011-04-07 19:18:44 +09001053 driver->num_controls);
Mark Brown89b95ac02011-03-07 16:38:44 +00001054 if (driver->dapm_routes)
1055 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
1056 driver->num_dapm_routes);
1057
Jarkko Nikula589c3562010-12-06 16:27:07 +02001058 /* mark codec as probed and add to card codec list */
1059 codec->probed = 1;
1060 list_add(&codec->card_list, &card->codec_dev_list);
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001061 list_add(&codec->dapm.list, &card->dapm_list);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001062
Jarkko Nikula70d29332011-01-27 16:24:22 +02001063 return 0;
1064
1065err_probe:
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001066 soc_cleanup_codec_debugfs(codec);
Jarkko Nikula70d29332011-01-27 16:24:22 +02001067 module_put(codec->dev->driver->owner);
1068
Jarkko Nikula589c3562010-12-06 16:27:07 +02001069 return ret;
1070}
1071
Liam Girdwood956245e2011-07-01 16:54:08 +01001072static int soc_probe_platform(struct snd_soc_card *card,
1073 struct snd_soc_platform *platform)
1074{
1075 int ret = 0;
1076 const struct snd_soc_platform_driver *driver = platform->driver;
1077
1078 platform->card = card;
Liam Girdwoodb7950642011-07-04 22:10:52 +01001079 platform->dapm.card = card;
Liam Girdwood956245e2011-07-01 16:54:08 +01001080
1081 if (!try_module_get(platform->dev->driver->owner))
1082 return -ENODEV;
1083
Sebastien Guiriec731f1ab2012-02-15 15:25:31 +00001084 soc_init_platform_debugfs(platform);
1085
Liam Girdwoodcb2cf612011-07-04 22:10:53 +01001086 if (driver->dapm_widgets)
1087 snd_soc_dapm_new_controls(&platform->dapm,
1088 driver->dapm_widgets, driver->num_dapm_widgets);
1089
Liam Girdwood956245e2011-07-01 16:54:08 +01001090 if (driver->probe) {
1091 ret = driver->probe(platform);
1092 if (ret < 0) {
1093 dev_err(platform->dev,
1094 "asoc: failed to probe platform %s: %d\n",
1095 platform->name, ret);
1096 goto err_probe;
1097 }
1098 }
1099
Liam Girdwoodcb2cf612011-07-04 22:10:53 +01001100 if (driver->controls)
1101 snd_soc_add_platform_controls(platform, driver->controls,
1102 driver->num_controls);
1103 if (driver->dapm_routes)
1104 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1105 driver->num_dapm_routes);
1106
Liam Girdwood956245e2011-07-01 16:54:08 +01001107 /* mark platform as probed and add to card platform list */
1108 platform->probed = 1;
1109 list_add(&platform->card_list, &card->platform_dev_list);
Liam Girdwoodb7950642011-07-04 22:10:52 +01001110 list_add(&platform->dapm.list, &card->dapm_list);
Liam Girdwood956245e2011-07-01 16:54:08 +01001111
1112 return 0;
1113
1114err_probe:
1115 module_put(platform->dev->driver->owner);
1116
1117 return ret;
1118}
1119
Mark Brown36ae1a92012-01-06 17:12:45 -08001120static void rtd_release(struct device *dev)
1121{
1122 kfree(dev);
1123}
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001124
Jarkko Nikula589c3562010-12-06 16:27:07 +02001125static int soc_post_component_init(struct snd_soc_card *card,
1126 struct snd_soc_codec *codec,
1127 int num, int dailess)
1128{
1129 struct snd_soc_dai_link *dai_link = NULL;
1130 struct snd_soc_aux_dev *aux_dev = NULL;
1131 struct snd_soc_pcm_runtime *rtd;
1132 const char *temp, *name;
1133 int ret = 0;
1134
1135 if (!dailess) {
1136 dai_link = &card->dai_link[num];
1137 rtd = &card->rtd[num];
1138 name = dai_link->name;
1139 } else {
1140 aux_dev = &card->aux_dev[num];
1141 rtd = &card->rtd_aux[num];
1142 name = aux_dev->name;
1143 }
Janusz Krzysztofik0962bb22011-02-02 21:11:41 +01001144 rtd->card = card;
Jarkko Nikula589c3562010-12-06 16:27:07 +02001145
Mark Brown4b1cfcb2011-10-18 00:11:49 +01001146 /* Make sure all DAPM widgets are instantiated */
1147 snd_soc_dapm_new_widgets(&codec->dapm);
1148
Jarkko Nikula589c3562010-12-06 16:27:07 +02001149 /* machine controls, routes and widgets are not prefixed */
1150 temp = codec->name_prefix;
1151 codec->name_prefix = NULL;
1152
1153 /* do machine specific initialization */
1154 if (!dailess && dai_link->init)
1155 ret = dai_link->init(rtd);
1156 else if (dailess && aux_dev->init)
1157 ret = aux_dev->init(&codec->dapm);
1158 if (ret < 0) {
1159 dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret);
1160 return ret;
1161 }
1162 codec->name_prefix = temp;
1163
Jarkko Nikula589c3562010-12-06 16:27:07 +02001164 /* register the rtd device */
1165 rtd->codec = codec;
Mark Brown36ae1a92012-01-06 17:12:45 -08001166
1167 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1168 if (!rtd->dev)
1169 return -ENOMEM;
1170 device_initialize(rtd->dev);
1171 rtd->dev->parent = card->dev;
1172 rtd->dev->release = rtd_release;
1173 rtd->dev->init_name = name;
1174 dev_set_drvdata(rtd->dev, rtd);
Liam Girdwoodb8c0dab2011-06-09 17:04:39 +01001175 mutex_init(&rtd->pcm_mutex);
Mark Brown36ae1a92012-01-06 17:12:45 -08001176 ret = device_add(rtd->dev);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001177 if (ret < 0) {
1178 dev_err(card->dev,
1179 "asoc: failed to register runtime device: %d\n", ret);
1180 return ret;
1181 }
1182 rtd->dev_registered = 1;
1183
1184 /* add DAPM sysfs entries for this codec */
Mark Brown36ae1a92012-01-06 17:12:45 -08001185 ret = snd_soc_dapm_sys_add(rtd->dev);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001186 if (ret < 0)
1187 dev_err(codec->dev,
1188 "asoc: failed to add codec dapm sysfs entries: %d\n",
1189 ret);
1190
1191 /* add codec sysfs entries */
Mark Brown36ae1a92012-01-06 17:12:45 -08001192 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001193 if (ret < 0)
1194 dev_err(codec->dev,
1195 "asoc: failed to add codec sysfs files: %d\n", ret);
1196
1197 return 0;
1198}
1199
Liam Girdwood0168bf02011-06-07 16:08:05 +01001200static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001201{
1202 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1203 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1204 struct snd_soc_codec *codec = rtd->codec;
1205 struct snd_soc_platform *platform = rtd->platform;
1206 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
1207 int ret;
1208
Liam Girdwood0168bf02011-06-07 16:08:05 +01001209 dev_dbg(card->dev, "probe %s dai link %d late %d\n",
1210 card->name, num, order);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001211
1212 /* config components */
1213 codec_dai->codec = codec;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001214 cpu_dai->platform = platform;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001215 codec_dai->card = card;
1216 cpu_dai->card = card;
1217
1218 /* set default power off timeout */
1219 rtd->pmdown_time = pmdown_time;
1220
1221 /* probe the cpu_dai */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001222 if (!cpu_dai->probed &&
1223 cpu_dai->driver->probe_order == order) {
Liam Girdwood61b61e32011-05-24 13:57:43 +01001224 if (!try_module_get(cpu_dai->dev->driver->owner))
1225 return -ENODEV;
1226
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001227 if (cpu_dai->driver->probe) {
1228 ret = cpu_dai->driver->probe(cpu_dai);
1229 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001230 pr_err("asoc: failed to probe CPU DAI %s: %d\n",
1231 cpu_dai->name, ret);
Liam Girdwood61b61e32011-05-24 13:57:43 +01001232 module_put(cpu_dai->dev->driver->owner);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001233 return ret;
1234 }
1235 }
1236 cpu_dai->probed = 1;
Wolfram Sang1c8371d2011-07-17 18:00:26 +02001237 /* mark cpu_dai as probed and add to card dai list */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001238 list_add(&cpu_dai->card_list, &card->dai_dev_list);
1239 }
1240
1241 /* probe the CODEC */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001242 if (!codec->probed &&
1243 codec->driver->probe_order == order) {
Jarkko Nikula589c3562010-12-06 16:27:07 +02001244 ret = soc_probe_codec(card, codec);
1245 if (ret < 0)
1246 return ret;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001247 }
1248
1249 /* probe the platform */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001250 if (!platform->probed &&
1251 platform->driver->probe_order == order) {
Liam Girdwood956245e2011-07-01 16:54:08 +01001252 ret = soc_probe_platform(card, platform);
1253 if (ret < 0)
1254 return ret;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001255 }
1256
1257 /* probe the CODEC DAI */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001258 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001259 if (codec_dai->driver->probe) {
1260 ret = codec_dai->driver->probe(codec_dai);
1261 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001262 pr_err("asoc: failed to probe CODEC DAI %s: %d\n",
1263 codec_dai->name, ret);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001264 return ret;
Mark Brown6b05eda2008-12-08 19:26:48 +00001265 }
1266 }
1267
Wolfram Sang1c8371d2011-07-17 18:00:26 +02001268 /* mark codec_dai as probed and add to card dai list */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001269 codec_dai->probed = 1;
1270 list_add(&codec_dai->card_list, &card->dai_dev_list);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001271 }
1272
Liam Girdwood0168bf02011-06-07 16:08:05 +01001273 /* complete DAI probe during last probe */
1274 if (order != SND_SOC_COMP_ORDER_LAST)
1275 return 0;
1276
Jarkko Nikula589c3562010-12-06 16:27:07 +02001277 ret = soc_post_component_init(card, codec, num, 0);
1278 if (ret)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001279 return ret;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001280
Mark Brown36ae1a92012-01-06 17:12:45 -08001281 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001282 if (ret < 0)
Fabio Estevam0837fc62012-02-17 19:40:38 -02001283 pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001284
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001285 /* create the pcm */
1286 ret = soc_new_pcm(rtd, num);
1287 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001288 pr_err("asoc: can't create pcm %s :%d\n",
1289 dai_link->stream_name, ret);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001290 return ret;
1291 }
1292
1293 /* add platform data for AC97 devices */
1294 if (rtd->codec_dai->driver->ac97_control)
1295 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1296
1297 return 0;
1298}
1299
1300#ifdef CONFIG_SND_SOC_AC97_BUS
1301static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1302{
1303 int ret;
1304
1305 /* Only instantiate AC97 if not already done by the adaptor
1306 * for the generic AC97 subsystem.
1307 */
1308 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
Mika Westerberg0562f782010-10-13 11:30:32 +03001309 /*
1310 * It is possible that the AC97 device is already registered to
1311 * the device subsystem. This happens when the device is created
1312 * via snd_ac97_mixer(). Currently only SoC codec that does so
1313 * is the generic AC97 glue but others migh emerge.
1314 *
1315 * In those cases we don't try to register the device again.
1316 */
1317 if (!rtd->codec->ac97_created)
1318 return 0;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001319
1320 ret = soc_ac97_dev_register(rtd->codec);
1321 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001322 pr_err("asoc: AC97 device register failed:%d\n", ret);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001323 return ret;
1324 }
1325
1326 rtd->codec->ac97_registered = 1;
1327 }
1328 return 0;
1329}
1330
1331static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1332{
1333 if (codec->ac97_registered) {
1334 soc_ac97_dev_unregister(codec);
1335 codec->ac97_registered = 0;
1336 }
1337}
1338#endif
1339
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001340static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1341{
1342 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001343 struct snd_soc_codec *codec;
Jarkko Nikula676ad982010-12-03 09:18:22 +02001344 int ret = -ENODEV;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001345
1346 /* find CODEC from registered CODECs*/
1347 list_for_each_entry(codec, &codec_list, list) {
1348 if (!strcmp(codec->name, aux_dev->codec_name)) {
1349 if (codec->probed) {
1350 dev_err(codec->dev,
1351 "asoc: codec already probed");
1352 ret = -EBUSY;
1353 goto out;
1354 }
Jarkko Nikula676ad982010-12-03 09:18:22 +02001355 goto found;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001356 }
1357 }
Jarkko Nikula676ad982010-12-03 09:18:22 +02001358 /* codec not found */
1359 dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name);
1360 goto out;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001361
Jarkko Nikula676ad982010-12-03 09:18:22 +02001362found:
Jarkko Nikula589c3562010-12-06 16:27:07 +02001363 ret = soc_probe_codec(card, codec);
1364 if (ret < 0)
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001365 return ret;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001366
Jarkko Nikula589c3562010-12-06 16:27:07 +02001367 ret = soc_post_component_init(card, codec, num, 1);
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001368
1369out:
1370 return ret;
1371}
1372
1373static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1374{
1375 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1376 struct snd_soc_codec *codec = rtd->codec;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001377
1378 /* unregister the rtd device */
1379 if (rtd->dev_registered) {
Mark Brown36ae1a92012-01-06 17:12:45 -08001380 device_remove_file(rtd->dev, &dev_attr_codec_reg);
1381 device_del(rtd->dev);
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001382 rtd->dev_registered = 0;
1383 }
1384
Jarkko Nikula589c3562010-12-06 16:27:07 +02001385 if (codec && codec->probed)
1386 soc_remove_codec(codec);
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001387}
1388
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001389static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
1390 enum snd_soc_compress_type compress_type)
1391{
1392 int ret;
1393
1394 if (codec->cache_init)
1395 return 0;
1396
1397 /* override the compress_type if necessary */
1398 if (compress_type && codec->compress_type != compress_type)
1399 codec->compress_type = compress_type;
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001400 ret = snd_soc_cache_init(codec);
1401 if (ret < 0) {
1402 dev_err(codec->dev, "Failed to set cache compression type: %d\n",
1403 ret);
1404 return ret;
1405 }
1406 codec->cache_init = 1;
1407 return 0;
1408}
1409
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001410static void snd_soc_instantiate_card(struct snd_soc_card *card)
1411{
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001412 struct snd_soc_codec *codec;
1413 struct snd_soc_codec_conf *codec_conf;
1414 enum snd_soc_compress_type compress_type;
Mark Brown75d9ac42011-09-27 16:41:01 +01001415 struct snd_soc_dai_link *dai_link;
Liam Girdwood0168bf02011-06-07 16:08:05 +01001416 int ret, i, order;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001417
1418 mutex_lock(&card->mutex);
1419
1420 if (card->instantiated) {
1421 mutex_unlock(&card->mutex);
1422 return;
1423 }
1424
1425 /* bind DAIs */
1426 for (i = 0; i < card->num_links; i++)
1427 soc_bind_dai_link(card, i);
1428
1429 /* bind completed ? */
1430 if (card->num_rtd != card->num_links) {
1431 mutex_unlock(&card->mutex);
1432 return;
1433 }
1434
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001435 /* initialize the register cache for each available codec */
1436 list_for_each_entry(codec, &codec_list, list) {
1437 if (codec->cache_init)
1438 continue;
Dimitris Papastamos861f2fa2011-01-11 11:43:51 +00001439 /* by default we don't override the compress_type */
1440 compress_type = 0;
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001441 /* check to see if we need to override the compress_type */
1442 for (i = 0; i < card->num_configs; ++i) {
1443 codec_conf = &card->codec_conf[i];
1444 if (!strcmp(codec->name, codec_conf->dev_name)) {
1445 compress_type = codec_conf->compress_type;
1446 if (compress_type && compress_type
1447 != codec->compress_type)
1448 break;
1449 }
1450 }
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001451 ret = snd_soc_init_codec_cache(codec, compress_type);
1452 if (ret < 0) {
1453 mutex_unlock(&card->mutex);
1454 return;
1455 }
1456 }
1457
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001458 /* card bind complete so register a sound card */
1459 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1460 card->owner, 0, &card->snd_card);
1461 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001462 pr_err("asoc: can't create sound card for card %s: %d\n",
1463 card->name, ret);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001464 mutex_unlock(&card->mutex);
1465 return;
1466 }
1467 card->snd_card->dev = card->dev;
1468
Mark Browne37a4972011-03-02 18:21:57 +00001469 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1470 card->dapm.dev = card->dev;
1471 card->dapm.card = card;
1472 list_add(&card->dapm.list, &card->dapm_list);
1473
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001474#ifdef CONFIG_DEBUG_FS
1475 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1476#endif
1477
Mark Brown88ee1c62011-02-02 10:43:26 +00001478#ifdef CONFIG_PM_SLEEP
Andy Green6ed25972008-06-13 16:24:05 +01001479 /* deferred resume work */
Mark Brown63084192008-12-02 15:08:03 +00001480 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
Randy Dunlap1301a962008-06-17 19:19:34 +01001481#endif
Andy Green6ed25972008-06-13 16:24:05 +01001482
Mark Brown9a841eb2011-04-12 17:51:37 -07001483 if (card->dapm_widgets)
1484 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1485 card->num_dapm_widgets);
1486
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001487 /* initialise the sound card only once */
1488 if (card->probe) {
Mark Browne7361ec2011-01-26 14:17:20 +00001489 ret = card->probe(card);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001490 if (ret < 0)
1491 goto card_probe_error;
1492 }
1493
Liam Girdwood0168bf02011-06-07 16:08:05 +01001494 /* early DAI link probe */
1495 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1496 order++) {
1497 for (i = 0; i < card->num_links; i++) {
1498 ret = soc_probe_dai_link(card, i, order);
1499 if (ret < 0) {
1500 pr_err("asoc: failed to instantiate card %s: %d\n",
Mark Brown321de0d2010-09-21 15:09:37 +01001501 card->name, ret);
Liam Girdwood0168bf02011-06-07 16:08:05 +01001502 goto probe_dai_err;
1503 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001504 }
1505 }
1506
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001507 for (i = 0; i < card->num_aux_devs; i++) {
1508 ret = soc_probe_aux_dev(card, i);
1509 if (ret < 0) {
1510 pr_err("asoc: failed to add auxiliary devices %s: %d\n",
1511 card->name, ret);
1512 goto probe_aux_dev_err;
1513 }
1514 }
1515
Mark Brown888df392012-02-16 19:37:51 -08001516 snd_soc_dapm_link_dai_widgets(card);
1517
Mark Brownb7af1da2011-04-07 19:18:44 +09001518 if (card->controls)
Liam Girdwood022658b2012-02-03 17:43:09 +00001519 snd_soc_add_card_controls(card, card->controls, card->num_controls);
Mark Brownb7af1da2011-04-07 19:18:44 +09001520
Mark Brownb8ad29d2011-03-02 18:35:51 +00001521 if (card->dapm_routes)
1522 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1523 card->num_dapm_routes);
1524
Mark Brownb90d2f92011-10-10 13:38:06 +01001525 snd_soc_dapm_new_widgets(&card->dapm);
1526
Mark Brown75d9ac42011-09-27 16:41:01 +01001527 for (i = 0; i < card->num_links; i++) {
1528 dai_link = &card->dai_link[i];
1529
1530 if (dai_link->dai_fmt) {
1531 ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai,
1532 dai_link->dai_fmt);
1533 if (ret != 0)
1534 dev_warn(card->rtd[i].codec_dai->dev,
1535 "Failed to set DAI format: %d\n",
1536 ret);
1537
1538 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1539 dai_link->dai_fmt);
1540 if (ret != 0)
1541 dev_warn(card->rtd[i].cpu_dai->dev,
1542 "Failed to set DAI format: %d\n",
1543 ret);
1544 }
1545 }
1546
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001547 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001548 "%s", card->name);
Liam Girdwood22de71b2011-05-12 16:14:04 +01001549 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1550 "%s", card->long_name ? card->long_name : card->name);
Mark Brownf0e8ed82011-09-20 11:41:54 +01001551 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1552 "%s", card->driver_name ? card->driver_name : card->name);
1553 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1554 switch (card->snd_card->driver[i]) {
1555 case '_':
1556 case '-':
1557 case '\0':
1558 break;
1559 default:
1560 if (!isalnum(card->snd_card->driver[i]))
1561 card->snd_card->driver[i] = '_';
1562 break;
1563 }
1564 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001565
Mark Brown28e9ad92011-03-02 18:36:34 +00001566 if (card->late_probe) {
1567 ret = card->late_probe(card);
1568 if (ret < 0) {
1569 dev_err(card->dev, "%s late_probe() failed: %d\n",
1570 card->name, ret);
1571 goto probe_aux_dev_err;
1572 }
1573 }
1574
Mark Brown2dc00212011-10-08 13:59:44 +01001575 snd_soc_dapm_new_widgets(&card->dapm);
1576
Stephen Warren16332812011-11-23 12:42:04 -07001577 if (card->fully_routed)
Mark Brownb05d8dc2011-11-27 19:38:34 +00001578 list_for_each_entry(codec, &card->codec_dev_list, card_list)
Stephen Warren16332812011-11-23 12:42:04 -07001579 snd_soc_dapm_auto_nc_codec_pins(codec);
1580
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001581 ret = snd_card_register(card->snd_card);
1582 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001583 pr_err("asoc: failed to register soundcard for %s: %d\n",
1584 card->name, ret);
Axel Lin6b3ed782010-12-07 16:12:29 +08001585 goto probe_aux_dev_err;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001586 }
1587
1588#ifdef CONFIG_SND_SOC_AC97_BUS
1589 /* register any AC97 codecs */
1590 for (i = 0; i < card->num_rtd; i++) {
Axel Lin6b3ed782010-12-07 16:12:29 +08001591 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1592 if (ret < 0) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02001593 pr_err("asoc: failed to register AC97 %s: %d\n",
1594 card->name, ret);
Axel Lin6b3ed782010-12-07 16:12:29 +08001595 while (--i >= 0)
Mark Brown7d8316d2010-12-13 17:03:27 +00001596 soc_unregister_ac97_dai_link(card->rtd[i].codec);
Axel Lin6b3ed782010-12-07 16:12:29 +08001597 goto probe_aux_dev_err;
Mark Brownfe3e78e2009-11-03 22:13:13 +00001598 }
Axel Lin6b3ed782010-12-07 16:12:29 +08001599 }
Mark Brownfe3e78e2009-11-03 22:13:13 +00001600#endif
1601
Mark Brown435c5e22008-12-04 15:32:53 +00001602 card->instantiated = 1;
Mark Brown4f4c0072011-10-07 14:29:19 +01001603 snd_soc_dapm_sync(&card->dapm);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001604 mutex_unlock(&card->mutex);
Mark Brown435c5e22008-12-04 15:32:53 +00001605 return;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001606
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001607probe_aux_dev_err:
1608 for (i = 0; i < card->num_aux_devs; i++)
1609 soc_remove_aux_dev(card, i);
1610
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001611probe_dai_err:
Kuninori Morimoto0671fd82011-04-08 14:50:44 +09001612 soc_remove_dai_links(card);
Mark Brownfe3e78e2009-11-03 22:13:13 +00001613
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001614card_probe_error:
Mark Brown87506542008-11-18 20:50:34 +00001615 if (card->remove)
Mark Browne7361ec2011-01-26 14:17:20 +00001616 card->remove(card);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001617
1618 snd_card_free(card->snd_card);
1619
1620 mutex_unlock(&card->mutex);
Mark Brown435c5e22008-12-04 15:32:53 +00001621}
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001622
Mark Brown435c5e22008-12-04 15:32:53 +00001623/*
Uwe Kleine-König421f91d2010-06-11 12:17:00 +02001624 * Attempt to initialise any uninitialised cards. Must be called with
Mark Brown435c5e22008-12-04 15:32:53 +00001625 * client_mutex.
1626 */
1627static void snd_soc_instantiate_cards(void)
1628{
1629 struct snd_soc_card *card;
1630 list_for_each_entry(card, &card_list, list)
1631 snd_soc_instantiate_card(card);
1632}
1633
1634/* probes a new socdev */
1635static int soc_probe(struct platform_device *pdev)
1636{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001637 struct snd_soc_card *card = platform_get_drvdata(pdev);
Mark Brown435c5e22008-12-04 15:32:53 +00001638 int ret = 0;
Mark Brown435c5e22008-12-04 15:32:53 +00001639
Vinod Koul70a7ca32011-01-14 19:22:48 +05301640 /*
1641 * no card, so machine driver should be registering card
1642 * we should not be here in that case so ret error
1643 */
1644 if (!card)
1645 return -EINVAL;
1646
Mark Brown435c5e22008-12-04 15:32:53 +00001647 /* Bodge while we unpick instantiation */
1648 card->dev = &pdev->dev;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001649
Mark Brown435c5e22008-12-04 15:32:53 +00001650 ret = snd_soc_register_card(card);
1651 if (ret != 0) {
1652 dev_err(&pdev->dev, "Failed to register card\n");
1653 return ret;
1654 }
1655
1656 return 0;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001657}
1658
Vinod Koulb0e26482011-01-13 22:48:02 +05301659static int soc_cleanup_card_resources(struct snd_soc_card *card)
1660{
Vinod Koulb0e26482011-01-13 22:48:02 +05301661 int i;
1662
1663 /* make sure any delayed work runs */
1664 for (i = 0; i < card->num_rtd; i++) {
1665 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
1666 flush_delayed_work_sync(&rtd->delayed_work);
1667 }
1668
1669 /* remove auxiliary devices */
1670 for (i = 0; i < card->num_aux_devs; i++)
1671 soc_remove_aux_dev(card, i);
1672
1673 /* remove and free each DAI */
Kuninori Morimoto0671fd82011-04-08 14:50:44 +09001674 soc_remove_dai_links(card);
Vinod Koulb0e26482011-01-13 22:48:02 +05301675
1676 soc_cleanup_card_debugfs(card);
1677
1678 /* remove the card */
1679 if (card->remove)
Mark Browne7361ec2011-01-26 14:17:20 +00001680 card->remove(card);
Vinod Koulb0e26482011-01-13 22:48:02 +05301681
Lars-Peter Clausen0aaae522011-04-30 19:45:47 +02001682 snd_soc_dapm_free(&card->dapm);
1683
Vinod Koulb0e26482011-01-13 22:48:02 +05301684 kfree(card->rtd);
1685 snd_card_free(card->snd_card);
1686 return 0;
1687
1688}
1689
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001690/* removes a socdev */
1691static int soc_remove(struct platform_device *pdev)
1692{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001693 struct snd_soc_card *card = platform_get_drvdata(pdev);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001694
Mark Brownc5af3a22008-11-28 13:29:45 +00001695 snd_soc_unregister_card(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001696 return 0;
1697}
1698
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001699int snd_soc_poweroff(struct device *dev)
Mark Brown51737472009-06-22 13:16:51 +01001700{
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001701 struct snd_soc_card *card = dev_get_drvdata(dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001702 int i;
Mark Brown51737472009-06-22 13:16:51 +01001703
1704 if (!card->instantiated)
Mark Brown416356f2009-06-30 19:05:15 +01001705 return 0;
Mark Brown51737472009-06-22 13:16:51 +01001706
1707 /* Flush out pmdown_time work - we actually do want to run it
1708 * now, we're shutting down so no imminent restart. */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001709 for (i = 0; i < card->num_rtd; i++) {
1710 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
Tejun Heo5b84ba22010-12-11 17:51:26 +01001711 flush_delayed_work_sync(&rtd->delayed_work);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001712 }
Mark Brown51737472009-06-22 13:16:51 +01001713
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001714 snd_soc_dapm_shutdown(card);
Mark Brown416356f2009-06-30 19:05:15 +01001715
1716 return 0;
Mark Brown51737472009-06-22 13:16:51 +01001717}
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001718EXPORT_SYMBOL_GPL(snd_soc_poweroff);
Mark Brown51737472009-06-22 13:16:51 +01001719
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001720const struct dev_pm_ops snd_soc_pm_ops = {
Mark Brown5aa44b12012-01-31 15:30:28 +00001721 SET_SYSTEM_SLEEP_PM_OPS(snd_soc_suspend, snd_soc_resume)
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001722 .poweroff = snd_soc_poweroff,
Mark Brown416356f2009-06-30 19:05:15 +01001723};
Stephen Warrendeb26072011-04-05 19:35:30 -06001724EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
Mark Brown416356f2009-06-30 19:05:15 +01001725
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001726/* ASoC platform driver */
1727static struct platform_driver soc_driver = {
1728 .driver = {
1729 .name = "soc-audio",
Kay Sievers8b45a202008-04-14 13:33:36 +02001730 .owner = THIS_MODULE,
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001731 .pm = &snd_soc_pm_ops,
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001732 },
1733 .probe = soc_probe,
1734 .remove = soc_remove,
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001735};
1736
Mark Brown096e49d2009-07-05 15:12:22 +01001737/**
1738 * snd_soc_codec_volatile_register: Report if a register is volatile.
1739 *
1740 * @codec: CODEC to query.
1741 * @reg: Register to query.
1742 *
1743 * Boolean function indiciating if a CODEC register is volatile.
1744 */
Mark Brown181e0552011-01-24 14:05:25 +00001745int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1746 unsigned int reg)
Mark Brown096e49d2009-07-05 15:12:22 +01001747{
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00001748 if (codec->volatile_register)
1749 return codec->volatile_register(codec, reg);
Mark Brown096e49d2009-07-05 15:12:22 +01001750 else
1751 return 0;
1752}
1753EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1754
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001755/**
Dimitris Papastamos239c9702011-03-24 13:45:18 +00001756 * snd_soc_codec_readable_register: Report if a register is readable.
1757 *
1758 * @codec: CODEC to query.
1759 * @reg: Register to query.
1760 *
1761 * Boolean function indicating if a CODEC register is readable.
1762 */
1763int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
1764 unsigned int reg)
1765{
1766 if (codec->readable_register)
1767 return codec->readable_register(codec, reg);
1768 else
Lars-Peter Clausen63fa0a22011-08-27 18:24:12 +02001769 return 1;
Dimitris Papastamos239c9702011-03-24 13:45:18 +00001770}
1771EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
1772
1773/**
1774 * snd_soc_codec_writable_register: Report if a register is writable.
1775 *
1776 * @codec: CODEC to query.
1777 * @reg: Register to query.
1778 *
1779 * Boolean function indicating if a CODEC register is writable.
1780 */
1781int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
1782 unsigned int reg)
1783{
1784 if (codec->writable_register)
1785 return codec->writable_register(codec, reg);
1786 else
Lars-Peter Clausen63fa0a22011-08-27 18:24:12 +02001787 return 1;
Dimitris Papastamos239c9702011-03-24 13:45:18 +00001788}
1789EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
1790
Liam Girdwoodf1442bc2011-07-04 11:10:15 +01001791int snd_soc_platform_read(struct snd_soc_platform *platform,
1792 unsigned int reg)
1793{
1794 unsigned int ret;
1795
1796 if (!platform->driver->read) {
1797 dev_err(platform->dev, "platform has no read back\n");
1798 return -1;
1799 }
1800
1801 ret = platform->driver->read(platform, reg);
1802 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
Liam Girdwooda82ce2a2011-07-04 22:10:50 +01001803 trace_snd_soc_preg_read(platform, reg, ret);
Liam Girdwoodf1442bc2011-07-04 11:10:15 +01001804
1805 return ret;
1806}
1807EXPORT_SYMBOL_GPL(snd_soc_platform_read);
1808
1809int snd_soc_platform_write(struct snd_soc_platform *platform,
1810 unsigned int reg, unsigned int val)
1811{
1812 if (!platform->driver->write) {
1813 dev_err(platform->dev, "platform has no write back\n");
1814 return -1;
1815 }
1816
1817 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
Liam Girdwooda82ce2a2011-07-04 22:10:50 +01001818 trace_snd_soc_preg_write(platform, reg, val);
Liam Girdwoodf1442bc2011-07-04 11:10:15 +01001819 return platform->driver->write(platform, reg, val);
1820}
1821EXPORT_SYMBOL_GPL(snd_soc_platform_write);
1822
Dimitris Papastamos239c9702011-03-24 13:45:18 +00001823/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001824 * snd_soc_new_ac97_codec - initailise AC97 device
1825 * @codec: audio codec
1826 * @ops: AC97 bus operations
1827 * @num: AC97 codec number
1828 *
1829 * Initialises AC97 codec resources for use by ad-hoc devices only.
1830 */
1831int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
1832 struct snd_ac97_bus_ops *ops, int num)
1833{
1834 mutex_lock(&codec->mutex);
1835
1836 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
1837 if (codec->ac97 == NULL) {
1838 mutex_unlock(&codec->mutex);
1839 return -ENOMEM;
1840 }
1841
1842 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
1843 if (codec->ac97->bus == NULL) {
1844 kfree(codec->ac97);
1845 codec->ac97 = NULL;
1846 mutex_unlock(&codec->mutex);
1847 return -ENOMEM;
1848 }
1849
1850 codec->ac97->bus->ops = ops;
1851 codec->ac97->num = num;
Mika Westerberg0562f782010-10-13 11:30:32 +03001852
1853 /*
1854 * Mark the AC97 device to be created by us. This way we ensure that the
1855 * device will be registered with the device subsystem later on.
1856 */
1857 codec->ac97_created = 1;
1858
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001859 mutex_unlock(&codec->mutex);
1860 return 0;
1861}
1862EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
1863
1864/**
1865 * snd_soc_free_ac97_codec - free AC97 codec device
1866 * @codec: audio codec
1867 *
1868 * Frees AC97 codec device resources.
1869 */
1870void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
1871{
1872 mutex_lock(&codec->mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001873#ifdef CONFIG_SND_SOC_AC97_BUS
1874 soc_unregister_ac97_dai_link(codec);
1875#endif
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001876 kfree(codec->ac97->bus);
1877 kfree(codec->ac97);
1878 codec->ac97 = NULL;
Mika Westerberg0562f782010-10-13 11:30:32 +03001879 codec->ac97_created = 0;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001880 mutex_unlock(&codec->mutex);
1881}
1882EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
1883
Mark Brownc3753702010-11-01 15:41:57 -04001884unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
1885{
1886 unsigned int ret;
1887
Mark Brownc3acec22010-12-02 16:15:29 +00001888 ret = codec->read(codec, reg);
Mark Brownc3753702010-11-01 15:41:57 -04001889 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
Mark Browna8b1d342010-11-03 18:05:58 -04001890 trace_snd_soc_reg_read(codec, reg, ret);
Mark Brownc3753702010-11-01 15:41:57 -04001891
1892 return ret;
1893}
1894EXPORT_SYMBOL_GPL(snd_soc_read);
1895
1896unsigned int snd_soc_write(struct snd_soc_codec *codec,
1897 unsigned int reg, unsigned int val)
1898{
1899 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
Mark Browna8b1d342010-11-03 18:05:58 -04001900 trace_snd_soc_reg_write(codec, reg, val);
Mark Brownc3acec22010-12-02 16:15:29 +00001901 return codec->write(codec, reg, val);
Mark Brownc3753702010-11-01 15:41:57 -04001902}
1903EXPORT_SYMBOL_GPL(snd_soc_write);
1904
Dimitris Papastamos5fb609d2011-03-22 10:37:03 +00001905unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
1906 unsigned int reg, const void *data, size_t len)
1907{
1908 return codec->bulk_write_raw(codec, reg, data, len);
1909}
1910EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw);
1911
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001912/**
1913 * snd_soc_update_bits - update codec register bits
1914 * @codec: audio codec
1915 * @reg: codec register
1916 * @mask: register mask
1917 * @value: new value
1918 *
1919 * Writes new register value.
1920 *
Timur Tabi180c3292011-01-10 15:58:13 -06001921 * Returns 1 for change, 0 for no change, or negative error code.
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001922 */
1923int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001924 unsigned int mask, unsigned int value)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001925{
Mark Brown8a713da2011-12-03 12:33:55 +00001926 bool change;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001927 unsigned int old, new;
Timur Tabi180c3292011-01-10 15:58:13 -06001928 int ret;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001929
Mark Brown8a713da2011-12-03 12:33:55 +00001930 if (codec->using_regmap) {
1931 ret = regmap_update_bits_check(codec->control_data, reg,
1932 mask, value, &change);
1933 } else {
1934 ret = snd_soc_read(codec, reg);
Timur Tabi180c3292011-01-10 15:58:13 -06001935 if (ret < 0)
1936 return ret;
Mark Brown8a713da2011-12-03 12:33:55 +00001937
1938 old = ret;
1939 new = (old & ~mask) | (value & mask);
1940 change = old != new;
1941 if (change)
1942 ret = snd_soc_write(codec, reg, new);
Timur Tabi180c3292011-01-10 15:58:13 -06001943 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001944
Mark Brown8a713da2011-12-03 12:33:55 +00001945 if (ret < 0)
1946 return ret;
1947
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001948 return change;
1949}
1950EXPORT_SYMBOL_GPL(snd_soc_update_bits);
1951
1952/**
Eero Nurkkala6c508c62009-10-30 13:34:03 +02001953 * snd_soc_update_bits_locked - update codec register bits
1954 * @codec: audio codec
1955 * @reg: codec register
1956 * @mask: register mask
1957 * @value: new value
1958 *
1959 * Writes new register value, and takes the codec mutex.
1960 *
1961 * Returns 1 for change else 0.
1962 */
Mark Browndd1b3d52009-12-04 14:22:03 +00001963int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
1964 unsigned short reg, unsigned int mask,
1965 unsigned int value)
Eero Nurkkala6c508c62009-10-30 13:34:03 +02001966{
1967 int change;
1968
1969 mutex_lock(&codec->mutex);
1970 change = snd_soc_update_bits(codec, reg, mask, value);
1971 mutex_unlock(&codec->mutex);
1972
1973 return change;
1974}
Mark Browndd1b3d52009-12-04 14:22:03 +00001975EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
Eero Nurkkala6c508c62009-10-30 13:34:03 +02001976
1977/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001978 * snd_soc_test_bits - test register for change
1979 * @codec: audio codec
1980 * @reg: codec register
1981 * @mask: register mask
1982 * @value: new value
1983 *
1984 * Tests a register with a new value and checks if the new value is
1985 * different from the old value.
1986 *
1987 * Returns 1 for change else 0.
1988 */
1989int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001990 unsigned int mask, unsigned int value)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001991{
1992 int change;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001993 unsigned int old, new;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001994
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001995 old = snd_soc_read(codec, reg);
1996 new = (old & ~mask) | value;
1997 change = old != new;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001998
1999 return change;
2000}
2001EXPORT_SYMBOL_GPL(snd_soc_test_bits);
2002
2003/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002004 * snd_soc_set_runtime_hwparams - set the runtime hardware parameters
2005 * @substream: the pcm substream
2006 * @hw: the hardware parameters
2007 *
2008 * Sets the substream runtime hardware parameters.
2009 */
2010int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
2011 const struct snd_pcm_hardware *hw)
2012{
2013 struct snd_pcm_runtime *runtime = substream->runtime;
2014 runtime->hw.info = hw->info;
2015 runtime->hw.formats = hw->formats;
2016 runtime->hw.period_bytes_min = hw->period_bytes_min;
2017 runtime->hw.period_bytes_max = hw->period_bytes_max;
2018 runtime->hw.periods_min = hw->periods_min;
2019 runtime->hw.periods_max = hw->periods_max;
2020 runtime->hw.buffer_bytes_max = hw->buffer_bytes_max;
2021 runtime->hw.fifo_size = hw->fifo_size;
2022 return 0;
2023}
2024EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams);
2025
2026/**
2027 * snd_soc_cnew - create new control
2028 * @_template: control template
2029 * @data: control private data
Mark Brownac11a2b2009-01-01 12:18:17 +00002030 * @long_name: control long name
Mark Brownefb7ac32011-03-08 17:23:24 +00002031 * @prefix: control name prefix
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002032 *
2033 * Create a new mixer control from a template control.
2034 *
2035 * Returns 0 for success, else error.
2036 */
2037struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
Mark Brown30565572012-02-16 17:07:42 -08002038 void *data, const char *long_name,
Mark Brownefb7ac32011-03-08 17:23:24 +00002039 const char *prefix)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002040{
2041 struct snd_kcontrol_new template;
Mark Brownefb7ac32011-03-08 17:23:24 +00002042 struct snd_kcontrol *kcontrol;
2043 char *name = NULL;
2044 int name_len;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002045
2046 memcpy(&template, _template, sizeof(template));
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002047 template.index = 0;
2048
Mark Brownefb7ac32011-03-08 17:23:24 +00002049 if (!long_name)
2050 long_name = template.name;
2051
2052 if (prefix) {
2053 name_len = strlen(long_name) + strlen(prefix) + 2;
Axel Lin57cf9d42011-08-20 11:03:44 +08002054 name = kmalloc(name_len, GFP_KERNEL);
Mark Brownefb7ac32011-03-08 17:23:24 +00002055 if (!name)
2056 return NULL;
2057
2058 snprintf(name, name_len, "%s %s", prefix, long_name);
2059
2060 template.name = name;
2061 } else {
2062 template.name = long_name;
2063 }
2064
2065 kcontrol = snd_ctl_new1(&template, data);
2066
2067 kfree(name);
2068
2069 return kcontrol;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002070}
2071EXPORT_SYMBOL_GPL(snd_soc_cnew);
2072
Liam Girdwood022658b2012-02-03 17:43:09 +00002073static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2074 const struct snd_kcontrol_new *controls, int num_controls,
2075 const char *prefix, void *data)
2076{
2077 int err, i;
2078
2079 for (i = 0; i < num_controls; i++) {
2080 const struct snd_kcontrol_new *control = &controls[i];
2081 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2082 control->name, prefix));
2083 if (err < 0) {
2084 dev_err(dev, "Failed to add %s: %d\n", control->name, err);
2085 return err;
2086 }
2087 }
2088
2089 return 0;
2090}
2091
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002092/**
Liam Girdwood022658b2012-02-03 17:43:09 +00002093 * snd_soc_add_codec_controls - add an array of controls to a codec.
2094 * Convenience function to add a list of controls. Many codecs were
Ian Molton3e8e1952009-01-09 00:23:21 +00002095 * duplicating this code.
2096 *
2097 * @codec: codec to add controls to
2098 * @controls: array of controls to add
2099 * @num_controls: number of elements in the array
2100 *
2101 * Return 0 for success, else error.
2102 */
Liam Girdwood022658b2012-02-03 17:43:09 +00002103int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
Ian Molton3e8e1952009-01-09 00:23:21 +00002104 const struct snd_kcontrol_new *controls, int num_controls)
2105{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002106 struct snd_card *card = codec->card->snd_card;
Ian Molton3e8e1952009-01-09 00:23:21 +00002107
Liam Girdwood022658b2012-02-03 17:43:09 +00002108 return snd_soc_add_controls(card, codec->dev, controls, num_controls,
2109 codec->name_prefix, codec);
Ian Molton3e8e1952009-01-09 00:23:21 +00002110}
Liam Girdwood022658b2012-02-03 17:43:09 +00002111EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
Ian Molton3e8e1952009-01-09 00:23:21 +00002112
2113/**
Liam Girdwooda491a5c2011-07-04 22:10:51 +01002114 * snd_soc_add_platform_controls - add an array of controls to a platform.
Liam Girdwood022658b2012-02-03 17:43:09 +00002115 * Convenience function to add a list of controls.
Liam Girdwooda491a5c2011-07-04 22:10:51 +01002116 *
2117 * @platform: platform to add controls to
2118 * @controls: array of controls to add
2119 * @num_controls: number of elements in the array
2120 *
2121 * Return 0 for success, else error.
2122 */
2123int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
2124 const struct snd_kcontrol_new *controls, int num_controls)
2125{
2126 struct snd_card *card = platform->card->snd_card;
Liam Girdwooda491a5c2011-07-04 22:10:51 +01002127
Liam Girdwood022658b2012-02-03 17:43:09 +00002128 return snd_soc_add_controls(card, platform->dev, controls, num_controls,
2129 NULL, platform);
Liam Girdwooda491a5c2011-07-04 22:10:51 +01002130}
2131EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2132
2133/**
Liam Girdwood022658b2012-02-03 17:43:09 +00002134 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2135 * Convenience function to add a list of controls.
2136 *
2137 * @soc_card: SoC card to add controls to
2138 * @controls: array of controls to add
2139 * @num_controls: number of elements in the array
2140 *
2141 * Return 0 for success, else error.
2142 */
2143int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2144 const struct snd_kcontrol_new *controls, int num_controls)
2145{
2146 struct snd_card *card = soc_card->snd_card;
2147
2148 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2149 NULL, soc_card);
2150}
2151EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2152
2153/**
2154 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2155 * Convienience function to add a list of controls.
2156 *
2157 * @dai: DAI to add controls to
2158 * @controls: array of controls to add
2159 * @num_controls: number of elements in the array
2160 *
2161 * Return 0 for success, else error.
2162 */
2163int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2164 const struct snd_kcontrol_new *controls, int num_controls)
2165{
2166 struct snd_card *card = dai->card->snd_card;
2167
2168 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2169 NULL, dai);
2170}
2171EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2172
2173/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002174 * snd_soc_info_enum_double - enumerated double mixer info callback
2175 * @kcontrol: mixer control
2176 * @uinfo: control element information
2177 *
2178 * Callback to provide information about a double enumerated
2179 * mixer control.
2180 *
2181 * Returns 0 for success.
2182 */
2183int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2184 struct snd_ctl_elem_info *uinfo)
2185{
2186 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2187
2188 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2189 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002190 uinfo->value.enumerated.items = e->max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002191
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002192 if (uinfo->value.enumerated.item > e->max - 1)
2193 uinfo->value.enumerated.item = e->max - 1;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002194 strcpy(uinfo->value.enumerated.name,
2195 e->texts[uinfo->value.enumerated.item]);
2196 return 0;
2197}
2198EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2199
2200/**
2201 * snd_soc_get_enum_double - enumerated double mixer get callback
2202 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002203 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002204 *
2205 * Callback to get the value of a double enumerated mixer.
2206 *
2207 * Returns 0 for success.
2208 */
2209int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2210 struct snd_ctl_elem_value *ucontrol)
2211{
2212 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2213 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002214 unsigned int val, bitmask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002215
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002216 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002217 ;
2218 val = snd_soc_read(codec, e->reg);
Mark Brown3ff3f642008-05-19 12:32:25 +02002219 ucontrol->value.enumerated.item[0]
2220 = (val >> e->shift_l) & (bitmask - 1);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002221 if (e->shift_l != e->shift_r)
2222 ucontrol->value.enumerated.item[1] =
2223 (val >> e->shift_r) & (bitmask - 1);
2224
2225 return 0;
2226}
2227EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2228
2229/**
2230 * snd_soc_put_enum_double - enumerated double mixer put callback
2231 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002232 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002233 *
2234 * Callback to set the value of a double enumerated mixer.
2235 *
2236 * Returns 0 for success.
2237 */
2238int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2239 struct snd_ctl_elem_value *ucontrol)
2240{
2241 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2242 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002243 unsigned int val;
2244 unsigned int mask, bitmask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002245
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002246 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002247 ;
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002248 if (ucontrol->value.enumerated.item[0] > e->max - 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002249 return -EINVAL;
2250 val = ucontrol->value.enumerated.item[0] << e->shift_l;
2251 mask = (bitmask - 1) << e->shift_l;
2252 if (e->shift_l != e->shift_r) {
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002253 if (ucontrol->value.enumerated.item[1] > e->max - 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002254 return -EINVAL;
2255 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
2256 mask |= (bitmask - 1) << e->shift_r;
2257 }
2258
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002259 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002260}
2261EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2262
2263/**
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002264 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2265 * @kcontrol: mixer control
2266 * @ucontrol: control element information
2267 *
2268 * Callback to get the value of a double semi enumerated mixer.
2269 *
2270 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2271 * used for handling bitfield coded enumeration for example.
2272 *
2273 * Returns 0 for success.
2274 */
2275int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2276 struct snd_ctl_elem_value *ucontrol)
2277{
2278 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Peter Ujfalusi74155552009-01-08 13:34:29 +02002279 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002280 unsigned int reg_val, val, mux;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002281
2282 reg_val = snd_soc_read(codec, e->reg);
2283 val = (reg_val >> e->shift_l) & e->mask;
2284 for (mux = 0; mux < e->max; mux++) {
2285 if (val == e->values[mux])
2286 break;
2287 }
2288 ucontrol->value.enumerated.item[0] = mux;
2289 if (e->shift_l != e->shift_r) {
2290 val = (reg_val >> e->shift_r) & e->mask;
2291 for (mux = 0; mux < e->max; mux++) {
2292 if (val == e->values[mux])
2293 break;
2294 }
2295 ucontrol->value.enumerated.item[1] = mux;
2296 }
2297
2298 return 0;
2299}
2300EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2301
2302/**
2303 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2304 * @kcontrol: mixer control
2305 * @ucontrol: control element information
2306 *
2307 * Callback to set the value of a double semi enumerated mixer.
2308 *
2309 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2310 * used for handling bitfield coded enumeration for example.
2311 *
2312 * Returns 0 for success.
2313 */
2314int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2315 struct snd_ctl_elem_value *ucontrol)
2316{
2317 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Peter Ujfalusi74155552009-01-08 13:34:29 +02002318 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002319 unsigned int val;
2320 unsigned int mask;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002321
2322 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2323 return -EINVAL;
2324 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2325 mask = e->mask << e->shift_l;
2326 if (e->shift_l != e->shift_r) {
2327 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2328 return -EINVAL;
2329 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2330 mask |= e->mask << e->shift_r;
2331 }
2332
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002333 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002334}
2335EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2336
2337/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002338 * snd_soc_info_enum_ext - external enumerated single mixer info callback
2339 * @kcontrol: mixer control
2340 * @uinfo: control element information
2341 *
2342 * Callback to provide information about an external enumerated
2343 * single mixer.
2344 *
2345 * Returns 0 for success.
2346 */
2347int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
2348 struct snd_ctl_elem_info *uinfo)
2349{
2350 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2351
2352 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2353 uinfo->count = 1;
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002354 uinfo->value.enumerated.items = e->max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002355
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002356 if (uinfo->value.enumerated.item > e->max - 1)
2357 uinfo->value.enumerated.item = e->max - 1;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002358 strcpy(uinfo->value.enumerated.name,
2359 e->texts[uinfo->value.enumerated.item]);
2360 return 0;
2361}
2362EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext);
2363
2364/**
2365 * snd_soc_info_volsw_ext - external single mixer info callback
2366 * @kcontrol: mixer control
2367 * @uinfo: control element information
2368 *
2369 * Callback to provide information about a single external mixer control.
2370 *
2371 * Returns 0 for success.
2372 */
2373int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
2374 struct snd_ctl_elem_info *uinfo)
2375{
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002376 int max = kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002377
Mark Brownfd5dfad2009-04-15 21:37:46 +01002378 if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002379 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2380 else
2381 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2382
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002383 uinfo->count = 1;
2384 uinfo->value.integer.min = 0;
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002385 uinfo->value.integer.max = max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002386 return 0;
2387}
2388EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
2389
2390/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002391 * snd_soc_info_volsw - single mixer info callback
2392 * @kcontrol: mixer control
2393 * @uinfo: control element information
2394 *
Peter Ujfalusie8f5a102011-10-05 10:29:23 +03002395 * Callback to provide information about a single mixer control, or a double
2396 * mixer control that spans 2 registers.
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002397 *
2398 * Returns 0 for success.
2399 */
2400int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2401 struct snd_ctl_elem_info *uinfo)
2402{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002403 struct soc_mixer_control *mc =
2404 (struct soc_mixer_control *)kcontrol->private_value;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002405 int platform_max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002406
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002407 if (!mc->platform_max)
2408 mc->platform_max = mc->max;
2409 platform_max = mc->platform_max;
2410
2411 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002412 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2413 else
2414 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2415
Peter Ujfalusie8f5a102011-10-05 10:29:23 +03002416 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002417 uinfo->value.integer.min = 0;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002418 uinfo->value.integer.max = platform_max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002419 return 0;
2420}
2421EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2422
2423/**
2424 * snd_soc_get_volsw - single mixer get callback
2425 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002426 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002427 *
Peter Ujfalusif7915d92011-10-05 10:29:24 +03002428 * Callback to get the value of a single mixer control, or a double mixer
2429 * control that spans 2 registers.
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002430 *
2431 * Returns 0 for success.
2432 */
2433int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2434 struct snd_ctl_elem_value *ucontrol)
2435{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002436 struct soc_mixer_control *mc =
2437 (struct soc_mixer_control *)kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002438 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002439 unsigned int reg = mc->reg;
Peter Ujfalusif7915d92011-10-05 10:29:24 +03002440 unsigned int reg2 = mc->rreg;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002441 unsigned int shift = mc->shift;
2442 unsigned int rshift = mc->rshift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002443 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002444 unsigned int mask = (1 << fls(max)) - 1;
2445 unsigned int invert = mc->invert;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002446
2447 ucontrol->value.integer.value[0] =
2448 (snd_soc_read(codec, reg) >> shift) & mask;
Peter Ujfalusif7915d92011-10-05 10:29:24 +03002449 if (invert)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002450 ucontrol->value.integer.value[0] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002451 max - ucontrol->value.integer.value[0];
Peter Ujfalusif7915d92011-10-05 10:29:24 +03002452
2453 if (snd_soc_volsw_is_stereo(mc)) {
2454 if (reg == reg2)
2455 ucontrol->value.integer.value[1] =
2456 (snd_soc_read(codec, reg) >> rshift) & mask;
2457 else
2458 ucontrol->value.integer.value[1] =
2459 (snd_soc_read(codec, reg2) >> shift) & mask;
2460 if (invert)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002461 ucontrol->value.integer.value[1] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002462 max - ucontrol->value.integer.value[1];
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002463 }
2464
2465 return 0;
2466}
2467EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2468
2469/**
2470 * snd_soc_put_volsw - single mixer put callback
2471 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002472 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002473 *
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002474 * Callback to set the value of a single mixer control, or a double mixer
2475 * control that spans 2 registers.
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002476 *
2477 * Returns 0 for success.
2478 */
2479int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2480 struct snd_ctl_elem_value *ucontrol)
2481{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002482 struct soc_mixer_control *mc =
2483 (struct soc_mixer_control *)kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002484 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002485 unsigned int reg = mc->reg;
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002486 unsigned int reg2 = mc->rreg;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002487 unsigned int shift = mc->shift;
2488 unsigned int rshift = mc->rshift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002489 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002490 unsigned int mask = (1 << fls(max)) - 1;
2491 unsigned int invert = mc->invert;
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002492 int err;
2493 bool type_2r = 0;
2494 unsigned int val2 = 0;
2495 unsigned int val, val_mask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002496
2497 val = (ucontrol->value.integer.value[0] & mask);
2498 if (invert)
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002499 val = max - val;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002500 val_mask = mask << shift;
2501 val = val << shift;
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002502 if (snd_soc_volsw_is_stereo(mc)) {
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002503 val2 = (ucontrol->value.integer.value[1] & mask);
2504 if (invert)
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002505 val2 = max - val2;
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002506 if (reg == reg2) {
2507 val_mask |= mask << rshift;
2508 val |= val2 << rshift;
2509 } else {
2510 val2 = val2 << shift;
2511 type_2r = 1;
2512 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002513 }
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002514 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
Mark Brown3ff3f642008-05-19 12:32:25 +02002515 if (err < 0)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002516 return err;
2517
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002518 if (type_2r)
2519 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
2520
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002521 return err;
2522}
Peter Ujfalusi974815b2011-10-05 10:29:25 +03002523EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002524
Mark Browne13ac2e2008-05-28 17:58:05 +01002525/**
2526 * snd_soc_info_volsw_s8 - signed mixer info callback
2527 * @kcontrol: mixer control
2528 * @uinfo: control element information
2529 *
2530 * Callback to provide information about a signed mixer control.
2531 *
2532 * Returns 0 for success.
2533 */
2534int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2535 struct snd_ctl_elem_info *uinfo)
2536{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002537 struct soc_mixer_control *mc =
2538 (struct soc_mixer_control *)kcontrol->private_value;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002539 int platform_max;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002540 int min = mc->min;
Mark Browne13ac2e2008-05-28 17:58:05 +01002541
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002542 if (!mc->platform_max)
2543 mc->platform_max = mc->max;
2544 platform_max = mc->platform_max;
2545
Mark Browne13ac2e2008-05-28 17:58:05 +01002546 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2547 uinfo->count = 2;
2548 uinfo->value.integer.min = 0;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002549 uinfo->value.integer.max = platform_max - min;
Mark Browne13ac2e2008-05-28 17:58:05 +01002550 return 0;
2551}
2552EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2553
2554/**
2555 * snd_soc_get_volsw_s8 - signed mixer get callback
2556 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002557 * @ucontrol: control element information
Mark Browne13ac2e2008-05-28 17:58:05 +01002558 *
2559 * Callback to get the value of a signed mixer control.
2560 *
2561 * Returns 0 for success.
2562 */
2563int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2564 struct snd_ctl_elem_value *ucontrol)
2565{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002566 struct soc_mixer_control *mc =
2567 (struct soc_mixer_control *)kcontrol->private_value;
Mark Browne13ac2e2008-05-28 17:58:05 +01002568 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002569 unsigned int reg = mc->reg;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002570 int min = mc->min;
Mark Browne13ac2e2008-05-28 17:58:05 +01002571 int val = snd_soc_read(codec, reg);
2572
2573 ucontrol->value.integer.value[0] =
2574 ((signed char)(val & 0xff))-min;
2575 ucontrol->value.integer.value[1] =
2576 ((signed char)((val >> 8) & 0xff))-min;
2577 return 0;
2578}
2579EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2580
2581/**
2582 * snd_soc_put_volsw_sgn - signed mixer put callback
2583 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002584 * @ucontrol: control element information
Mark Browne13ac2e2008-05-28 17:58:05 +01002585 *
2586 * Callback to set the value of a signed mixer control.
2587 *
2588 * Returns 0 for success.
2589 */
2590int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
2591 struct snd_ctl_elem_value *ucontrol)
2592{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002593 struct soc_mixer_control *mc =
2594 (struct soc_mixer_control *)kcontrol->private_value;
Mark Browne13ac2e2008-05-28 17:58:05 +01002595 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002596 unsigned int reg = mc->reg;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002597 int min = mc->min;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002598 unsigned int val;
Mark Browne13ac2e2008-05-28 17:58:05 +01002599
2600 val = (ucontrol->value.integer.value[0]+min) & 0xff;
2601 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
2602
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002603 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
Mark Browne13ac2e2008-05-28 17:58:05 +01002604}
2605EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
2606
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002607/**
Peter Ujfalusi637d3842010-05-07 14:05:49 +03002608 * snd_soc_limit_volume - Set new limit to an existing volume control.
2609 *
2610 * @codec: where to look for the control
2611 * @name: Name of the control
2612 * @max: new maximum limit
2613 *
2614 * Return 0 for success, else error.
2615 */
2616int snd_soc_limit_volume(struct snd_soc_codec *codec,
2617 const char *name, int max)
2618{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002619 struct snd_card *card = codec->card->snd_card;
Peter Ujfalusi637d3842010-05-07 14:05:49 +03002620 struct snd_kcontrol *kctl;
2621 struct soc_mixer_control *mc;
2622 int found = 0;
2623 int ret = -EINVAL;
2624
2625 /* Sanity check for name and max */
2626 if (unlikely(!name || max <= 0))
2627 return -EINVAL;
2628
2629 list_for_each_entry(kctl, &card->controls, list) {
2630 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
2631 found = 1;
2632 break;
2633 }
2634 }
2635 if (found) {
2636 mc = (struct soc_mixer_control *)kctl->private_value;
2637 if (max <= mc->max) {
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002638 mc->platform_max = max;
Peter Ujfalusi637d3842010-05-07 14:05:49 +03002639 ret = 0;
2640 }
2641 }
2642 return ret;
2643}
2644EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
2645
2646/**
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002647 * snd_soc_info_volsw_2r_sx - double with tlv and variable data size
2648 * mixer info callback
2649 * @kcontrol: mixer control
2650 * @uinfo: control element information
2651 *
2652 * Returns 0 for success.
2653 */
2654int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
2655 struct snd_ctl_elem_info *uinfo)
2656{
2657 struct soc_mixer_control *mc =
2658 (struct soc_mixer_control *)kcontrol->private_value;
2659 int max = mc->max;
2660 int min = mc->min;
2661
2662 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2663 uinfo->count = 2;
2664 uinfo->value.integer.min = 0;
2665 uinfo->value.integer.max = max-min;
2666
2667 return 0;
2668}
2669EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx);
2670
2671/**
2672 * snd_soc_get_volsw_2r_sx - double with tlv and variable data size
2673 * mixer get callback
2674 * @kcontrol: mixer control
2675 * @uinfo: control element information
2676 *
2677 * Returns 0 for success.
2678 */
2679int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
2680 struct snd_ctl_elem_value *ucontrol)
2681{
2682 struct soc_mixer_control *mc =
2683 (struct soc_mixer_control *)kcontrol->private_value;
2684 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2685 unsigned int mask = (1<<mc->shift)-1;
2686 int min = mc->min;
2687 int val = snd_soc_read(codec, mc->reg) & mask;
2688 int valr = snd_soc_read(codec, mc->rreg) & mask;
2689
Stuart Longland20630c72010-06-18 12:56:10 +10002690 ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask;
2691 ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask;
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002692 return 0;
2693}
2694EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx);
2695
2696/**
2697 * snd_soc_put_volsw_2r_sx - double with tlv and variable data size
2698 * mixer put callback
2699 * @kcontrol: mixer control
2700 * @uinfo: control element information
2701 *
2702 * Returns 0 for success.
2703 */
2704int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
2705 struct snd_ctl_elem_value *ucontrol)
2706{
2707 struct soc_mixer_control *mc =
2708 (struct soc_mixer_control *)kcontrol->private_value;
2709 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2710 unsigned int mask = (1<<mc->shift)-1;
2711 int min = mc->min;
2712 int ret;
2713 unsigned int val, valr, oval, ovalr;
2714
2715 val = ((ucontrol->value.integer.value[0]+min) & 0xff);
2716 val &= mask;
2717 valr = ((ucontrol->value.integer.value[1]+min) & 0xff);
2718 valr &= mask;
2719
2720 oval = snd_soc_read(codec, mc->reg) & mask;
2721 ovalr = snd_soc_read(codec, mc->rreg) & mask;
2722
2723 ret = 0;
2724 if (oval != val) {
2725 ret = snd_soc_write(codec, mc->reg, val);
2726 if (ret < 0)
Mark Brownf1df5ae2010-06-15 15:14:31 +01002727 return ret;
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002728 }
2729 if (ovalr != valr) {
2730 ret = snd_soc_write(codec, mc->rreg, valr);
2731 if (ret < 0)
Mark Brownf1df5ae2010-06-15 15:14:31 +01002732 return ret;
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002733 }
2734
2735 return 0;
2736}
2737EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx);
2738
Mark Brown71d08512011-10-10 18:31:26 +01002739int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
2740 struct snd_ctl_elem_info *uinfo)
2741{
2742 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2743 struct soc_bytes *params = (void *)kcontrol->private_value;
2744
2745 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
2746 uinfo->count = params->num_regs * codec->val_bytes;
2747
2748 return 0;
2749}
2750EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
2751
2752int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
2753 struct snd_ctl_elem_value *ucontrol)
2754{
2755 struct soc_bytes *params = (void *)kcontrol->private_value;
2756 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2757 int ret;
2758
2759 if (codec->using_regmap)
2760 ret = regmap_raw_read(codec->control_data, params->base,
2761 ucontrol->value.bytes.data,
2762 params->num_regs * codec->val_bytes);
2763 else
2764 ret = -EINVAL;
2765
Mark Brownf831b052012-02-17 16:20:33 -08002766 /* Hide any masked bytes to ensure consistent data reporting */
2767 if (ret == 0 && params->mask) {
2768 switch (codec->val_bytes) {
2769 case 1:
2770 ucontrol->value.bytes.data[0] &= ~params->mask;
2771 break;
2772 case 2:
2773 ((u16 *)(&ucontrol->value.bytes.data))[0]
2774 &= ~params->mask;
2775 break;
2776 case 4:
2777 ((u32 *)(&ucontrol->value.bytes.data))[0]
2778 &= ~params->mask;
2779 break;
2780 default:
2781 return -EINVAL;
2782 }
2783 }
2784
Mark Brown71d08512011-10-10 18:31:26 +01002785 return ret;
2786}
2787EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
2788
2789int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
2790 struct snd_ctl_elem_value *ucontrol)
2791{
2792 struct soc_bytes *params = (void *)kcontrol->private_value;
2793 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Mark Brownf831b052012-02-17 16:20:33 -08002794 int ret, len;
2795 unsigned int val;
2796 void *data;
Mark Brown71d08512011-10-10 18:31:26 +01002797
Mark Brownf831b052012-02-17 16:20:33 -08002798 if (!codec->using_regmap)
2799 return -EINVAL;
2800
2801 data = ucontrol->value.bytes.data;
2802 len = params->num_regs * codec->val_bytes;
2803
2804 /*
2805 * If we've got a mask then we need to preserve the register
2806 * bits. We shouldn't modify the incoming data so take a
2807 * copy.
2808 */
2809 if (params->mask) {
2810 ret = regmap_read(codec->control_data, params->base, &val);
2811 if (ret != 0)
2812 return ret;
2813
2814 val &= params->mask;
2815
2816 data = kmemdup(data, len, GFP_KERNEL);
2817 if (!data)
2818 return -ENOMEM;
2819
2820 switch (codec->val_bytes) {
2821 case 1:
2822 ((u8 *)data)[0] &= ~params->mask;
2823 ((u8 *)data)[0] |= val;
2824 break;
2825 case 2:
2826 ((u16 *)data)[0] &= cpu_to_be16(~params->mask);
2827 ((u16 *)data)[0] |= cpu_to_be16(val);
2828 break;
2829 case 4:
2830 ((u32 *)data)[0] &= cpu_to_be32(~params->mask);
2831 ((u32 *)data)[0] |= cpu_to_be32(val);
2832 break;
2833 default:
2834 return -EINVAL;
2835 }
2836 }
2837
2838 ret = regmap_raw_write(codec->control_data, params->base,
2839 data, len);
2840
2841 if (params->mask)
2842 kfree(data);
Mark Brown71d08512011-10-10 18:31:26 +01002843
2844 return ret;
2845}
2846EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
2847
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002848/**
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002849 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
2850 * @dai: DAI
2851 * @clk_id: DAI specific clock ID
2852 * @freq: new clock frequency in Hz
2853 * @dir: new clock direction - input/output.
2854 *
2855 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
2856 */
2857int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
2858 unsigned int freq, int dir)
2859{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002860 if (dai->driver && dai->driver->ops->set_sysclk)
2861 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
Mark Brownec4ee522011-03-07 20:58:11 +00002862 else if (dai->codec && dai->codec->driver->set_sysclk)
Mark Brownda1c6ea2011-08-24 20:09:01 +01002863 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
Mark Brownec4ee522011-03-07 20:58:11 +00002864 freq, dir);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002865 else
2866 return -EINVAL;
2867}
2868EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
2869
2870/**
Mark Brownec4ee522011-03-07 20:58:11 +00002871 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
2872 * @codec: CODEC
2873 * @clk_id: DAI specific clock ID
Mark Brownda1c6ea2011-08-24 20:09:01 +01002874 * @source: Source for the clock
Mark Brownec4ee522011-03-07 20:58:11 +00002875 * @freq: new clock frequency in Hz
2876 * @dir: new clock direction - input/output.
2877 *
2878 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
2879 */
2880int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
Mark Brownda1c6ea2011-08-24 20:09:01 +01002881 int source, unsigned int freq, int dir)
Mark Brownec4ee522011-03-07 20:58:11 +00002882{
2883 if (codec->driver->set_sysclk)
Mark Brownda1c6ea2011-08-24 20:09:01 +01002884 return codec->driver->set_sysclk(codec, clk_id, source,
2885 freq, dir);
Mark Brownec4ee522011-03-07 20:58:11 +00002886 else
2887 return -EINVAL;
2888}
2889EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
2890
2891/**
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002892 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
2893 * @dai: DAI
Mark Brownac11a2b2009-01-01 12:18:17 +00002894 * @div_id: DAI specific clock divider ID
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002895 * @div: new clock divisor.
2896 *
2897 * Configures the clock dividers. This is used to derive the best DAI bit and
2898 * frame clocks from the system or master clock. It's best to set the DAI bit
2899 * and frame clocks as low as possible to save system power.
2900 */
2901int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
2902 int div_id, int div)
2903{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002904 if (dai->driver && dai->driver->ops->set_clkdiv)
2905 return dai->driver->ops->set_clkdiv(dai, div_id, div);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002906 else
2907 return -EINVAL;
2908}
2909EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
2910
2911/**
2912 * snd_soc_dai_set_pll - configure DAI PLL.
2913 * @dai: DAI
2914 * @pll_id: DAI specific PLL ID
Mark Brown85488032009-09-05 18:52:16 +01002915 * @source: DAI specific source for the PLL
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002916 * @freq_in: PLL input clock frequency in Hz
2917 * @freq_out: requested PLL output clock frequency in Hz
2918 *
2919 * Configures and enables PLL to generate output clock based on input clock.
2920 */
Mark Brown85488032009-09-05 18:52:16 +01002921int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
2922 unsigned int freq_in, unsigned int freq_out)
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002923{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002924 if (dai->driver && dai->driver->ops->set_pll)
2925 return dai->driver->ops->set_pll(dai, pll_id, source,
Mark Brown85488032009-09-05 18:52:16 +01002926 freq_in, freq_out);
Mark Brownec4ee522011-03-07 20:58:11 +00002927 else if (dai->codec && dai->codec->driver->set_pll)
2928 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
2929 freq_in, freq_out);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002930 else
2931 return -EINVAL;
2932}
2933EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
2934
Mark Brownec4ee522011-03-07 20:58:11 +00002935/*
2936 * snd_soc_codec_set_pll - configure codec PLL.
2937 * @codec: CODEC
2938 * @pll_id: DAI specific PLL ID
2939 * @source: DAI specific source for the PLL
2940 * @freq_in: PLL input clock frequency in Hz
2941 * @freq_out: requested PLL output clock frequency in Hz
2942 *
2943 * Configures and enables PLL to generate output clock based on input clock.
2944 */
2945int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
2946 unsigned int freq_in, unsigned int freq_out)
2947{
2948 if (codec->driver->set_pll)
2949 return codec->driver->set_pll(codec, pll_id, source,
2950 freq_in, freq_out);
2951 else
2952 return -EINVAL;
2953}
2954EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
2955
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002956/**
2957 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
2958 * @dai: DAI
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002959 * @fmt: SND_SOC_DAIFMT_ format value.
2960 *
2961 * Configures the DAI hardware format and clocking.
2962 */
2963int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
2964{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002965 if (dai->driver && dai->driver->ops->set_fmt)
2966 return dai->driver->ops->set_fmt(dai, fmt);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002967 else
2968 return -EINVAL;
2969}
2970EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
2971
2972/**
2973 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
2974 * @dai: DAI
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002975 * @tx_mask: bitmask representing active TX slots.
2976 * @rx_mask: bitmask representing active RX slots.
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002977 * @slots: Number of slots in use.
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002978 * @slot_width: Width in bits for each slot.
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002979 *
2980 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
2981 * specific.
2982 */
2983int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002984 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002985{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002986 if (dai->driver && dai->driver->ops->set_tdm_slot)
2987 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002988 slots, slot_width);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002989 else
2990 return -EINVAL;
2991}
2992EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
2993
2994/**
Barry Song472df3c2009-09-12 01:16:29 +08002995 * snd_soc_dai_set_channel_map - configure DAI audio channel map
2996 * @dai: DAI
2997 * @tx_num: how many TX channels
2998 * @tx_slot: pointer to an array which imply the TX slot number channel
2999 * 0~num-1 uses
3000 * @rx_num: how many RX channels
3001 * @rx_slot: pointer to an array which imply the RX slot number channel
3002 * 0~num-1 uses
3003 *
3004 * configure the relationship between channel number and TDM slot number.
3005 */
3006int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3007 unsigned int tx_num, unsigned int *tx_slot,
3008 unsigned int rx_num, unsigned int *rx_slot)
3009{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003010 if (dai->driver && dai->driver->ops->set_channel_map)
3011 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
Barry Song472df3c2009-09-12 01:16:29 +08003012 rx_num, rx_slot);
3013 else
3014 return -EINVAL;
3015}
3016EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3017
3018/**
Liam Girdwood8c6529d2008-07-08 13:19:13 +01003019 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3020 * @dai: DAI
3021 * @tristate: tristate enable
3022 *
3023 * Tristates the DAI so that others can use it.
3024 */
3025int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3026{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003027 if (dai->driver && dai->driver->ops->set_tristate)
3028 return dai->driver->ops->set_tristate(dai, tristate);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01003029 else
3030 return -EINVAL;
3031}
3032EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3033
3034/**
3035 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3036 * @dai: DAI
3037 * @mute: mute enable
3038 *
3039 * Mutes the DAI DAC.
3040 */
3041int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
3042{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003043 if (dai->driver && dai->driver->ops->digital_mute)
3044 return dai->driver->ops->digital_mute(dai, mute);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01003045 else
3046 return -EINVAL;
3047}
3048EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3049
Mark Brownc5af3a22008-11-28 13:29:45 +00003050/**
3051 * snd_soc_register_card - Register a card with the ASoC core
3052 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003053 * @card: Card to register
Mark Brownc5af3a22008-11-28 13:29:45 +00003054 *
Mark Brownc5af3a22008-11-28 13:29:45 +00003055 */
Vinod Koul70a7ca32011-01-14 19:22:48 +05303056int snd_soc_register_card(struct snd_soc_card *card)
Mark Brownc5af3a22008-11-28 13:29:45 +00003057{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003058 int i;
3059
Mark Brownc5af3a22008-11-28 13:29:45 +00003060 if (!card->name || !card->dev)
3061 return -EINVAL;
3062
Stephen Warren5a504962011-12-21 10:40:59 -07003063 for (i = 0; i < card->num_links; i++) {
3064 struct snd_soc_dai_link *link = &card->dai_link[i];
3065
3066 /*
3067 * Codec must be specified by 1 of name or OF node,
3068 * not both or neither.
3069 */
3070 if (!!link->codec_name == !!link->codec_of_node) {
3071 dev_err(card->dev,
Liam Girdwood3b09bb82012-01-09 12:09:29 +00003072 "Neither/both codec name/of_node are set for %s\n",
3073 link->name);
Stephen Warren5a504962011-12-21 10:40:59 -07003074 return -EINVAL;
3075 }
3076
3077 /*
3078 * Platform may be specified by either name or OF node, but
3079 * can be left unspecified, and a dummy platform will be used.
3080 */
3081 if (link->platform_name && link->platform_of_node) {
3082 dev_err(card->dev,
Liam Girdwood3b09bb82012-01-09 12:09:29 +00003083 "Both platform name/of_node are set for %s\n", link->name);
Stephen Warren5a504962011-12-21 10:40:59 -07003084 return -EINVAL;
3085 }
3086
3087 /*
3088 * CPU DAI must be specified by 1 of name or OF node,
3089 * not both or neither.
3090 */
3091 if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) {
3092 dev_err(card->dev,
Liam Girdwood3b09bb82012-01-09 12:09:29 +00003093 "Neither/both cpu_dai name/of_node are set for %s\n",
3094 link->name);
Stephen Warren5a504962011-12-21 10:40:59 -07003095 return -EINVAL;
3096 }
3097 }
3098
Mark Browned77cc12011-05-03 18:25:34 +01003099 dev_set_drvdata(card->dev, card);
3100
Stephen Warren111c6412011-01-28 14:26:35 -07003101 snd_soc_initialize_card_lists(card);
3102
Vinod Koul150dd2f2011-01-13 22:48:32 +05303103 soc_init_card_debugfs(card);
3104
Jarkko Nikula2eea3922010-11-25 17:47:38 +02003105 card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) *
3106 (card->num_links + card->num_aux_devs),
3107 GFP_KERNEL);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003108 if (card->rtd == NULL)
3109 return -ENOMEM;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02003110 card->rtd_aux = &card->rtd[card->num_links];
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003111
3112 for (i = 0; i < card->num_links; i++)
3113 card->rtd[i].dai_link = &card->dai_link[i];
3114
Mark Brownc5af3a22008-11-28 13:29:45 +00003115 INIT_LIST_HEAD(&card->list);
Mark Browndb432b42011-10-03 21:06:40 +01003116 INIT_LIST_HEAD(&card->dapm_dirty);
Mark Brownc5af3a22008-11-28 13:29:45 +00003117 card->instantiated = 0;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003118 mutex_init(&card->mutex);
Mark Brownc5af3a22008-11-28 13:29:45 +00003119
3120 mutex_lock(&client_mutex);
3121 list_add(&card->list, &card_list);
Mark Brown435c5e22008-12-04 15:32:53 +00003122 snd_soc_instantiate_cards();
Mark Brownc5af3a22008-11-28 13:29:45 +00003123 mutex_unlock(&client_mutex);
3124
3125 dev_dbg(card->dev, "Registered card '%s'\n", card->name);
3126
3127 return 0;
3128}
Vinod Koul70a7ca32011-01-14 19:22:48 +05303129EXPORT_SYMBOL_GPL(snd_soc_register_card);
Mark Brownc5af3a22008-11-28 13:29:45 +00003130
3131/**
3132 * snd_soc_unregister_card - Unregister a card with the ASoC core
3133 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003134 * @card: Card to unregister
Mark Brownc5af3a22008-11-28 13:29:45 +00003135 *
Mark Brownc5af3a22008-11-28 13:29:45 +00003136 */
Vinod Koul70a7ca32011-01-14 19:22:48 +05303137int snd_soc_unregister_card(struct snd_soc_card *card)
Mark Brownc5af3a22008-11-28 13:29:45 +00003138{
Vinod Koulb0e26482011-01-13 22:48:02 +05303139 if (card->instantiated)
3140 soc_cleanup_card_resources(card);
Mark Brownc5af3a22008-11-28 13:29:45 +00003141 mutex_lock(&client_mutex);
3142 list_del(&card->list);
3143 mutex_unlock(&client_mutex);
Mark Brownc5af3a22008-11-28 13:29:45 +00003144 dev_dbg(card->dev, "Unregistered card '%s'\n", card->name);
3145
3146 return 0;
3147}
Vinod Koul70a7ca32011-01-14 19:22:48 +05303148EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
Mark Brownc5af3a22008-11-28 13:29:45 +00003149
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003150/*
3151 * Simplify DAI link configuration by removing ".-1" from device names
3152 * and sanitizing names.
3153 */
Dimitris Papastamos0b9a2142010-12-06 15:49:20 +00003154static char *fmt_single_name(struct device *dev, int *id)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003155{
3156 char *found, name[NAME_SIZE];
3157 int id1, id2;
3158
3159 if (dev_name(dev) == NULL)
3160 return NULL;
3161
Dimitris Papastamos58818a72010-12-06 15:42:17 +00003162 strlcpy(name, dev_name(dev), NAME_SIZE);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003163
3164 /* are we a "%s.%d" name (platform and SPI components) */
3165 found = strstr(name, dev->driver->name);
3166 if (found) {
3167 /* get ID */
3168 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3169
3170 /* discard ID from name if ID == -1 */
3171 if (*id == -1)
3172 found[strlen(dev->driver->name)] = '\0';
3173 }
3174
3175 } else {
3176 /* I2C component devices are named "bus-addr" */
3177 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3178 char tmp[NAME_SIZE];
3179
3180 /* create unique ID number from I2C addr and bus */
Jarkko Nikula05899442010-10-19 11:10:45 +03003181 *id = ((id1 & 0xffff) << 16) + id2;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003182
3183 /* sanitize component name for DAI link creation */
3184 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
Dimitris Papastamos58818a72010-12-06 15:42:17 +00003185 strlcpy(name, tmp, NAME_SIZE);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003186 } else
3187 *id = 0;
3188 }
3189
3190 return kstrdup(name, GFP_KERNEL);
3191}
3192
3193/*
3194 * Simplify DAI link naming for single devices with multiple DAIs by removing
3195 * any ".-1" and using the DAI name (instead of device name).
3196 */
3197static inline char *fmt_multiple_name(struct device *dev,
3198 struct snd_soc_dai_driver *dai_drv)
3199{
3200 if (dai_drv->name == NULL) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02003201 pr_err("asoc: error - multiple DAI %s registered with no name\n",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003202 dev_name(dev));
3203 return NULL;
3204 }
3205
3206 return kstrdup(dai_drv->name, GFP_KERNEL);
3207}
3208
Mark Brown91151712008-11-30 23:31:24 +00003209/**
3210 * snd_soc_register_dai - Register a DAI with the ASoC core
3211 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003212 * @dai: DAI to register
Mark Brown91151712008-11-30 23:31:24 +00003213 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003214int snd_soc_register_dai(struct device *dev,
3215 struct snd_soc_dai_driver *dai_drv)
Mark Brown91151712008-11-30 23:31:24 +00003216{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003217 struct snd_soc_dai *dai;
Mark Brown91151712008-11-30 23:31:24 +00003218
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003219 dev_dbg(dev, "dai register %s\n", dev_name(dev));
Mark Brown91151712008-11-30 23:31:24 +00003220
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003221 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
3222 if (dai == NULL)
Lu Guanquna7393622011-04-20 16:00:51 +08003223 return -ENOMEM;
Eric Miao6335d052009-03-03 09:41:00 +08003224
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003225 /* create DAI component name */
3226 dai->name = fmt_single_name(dev, &dai->id);
3227 if (dai->name == NULL) {
3228 kfree(dai);
3229 return -ENOMEM;
3230 }
3231
3232 dai->dev = dev;
3233 dai->driver = dai_drv;
3234 if (!dai->driver->ops)
3235 dai->driver->ops = &null_dai_ops;
Mark Brown91151712008-11-30 23:31:24 +00003236
3237 mutex_lock(&client_mutex);
3238 list_add(&dai->list, &dai_list);
Mark Brown435c5e22008-12-04 15:32:53 +00003239 snd_soc_instantiate_cards();
Mark Brown91151712008-11-30 23:31:24 +00003240 mutex_unlock(&client_mutex);
3241
3242 pr_debug("Registered DAI '%s'\n", dai->name);
3243
3244 return 0;
3245}
3246EXPORT_SYMBOL_GPL(snd_soc_register_dai);
3247
3248/**
3249 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3250 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003251 * @dai: DAI to unregister
Mark Brown91151712008-11-30 23:31:24 +00003252 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003253void snd_soc_unregister_dai(struct device *dev)
Mark Brown91151712008-11-30 23:31:24 +00003254{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003255 struct snd_soc_dai *dai;
3256
3257 list_for_each_entry(dai, &dai_list, list) {
3258 if (dev == dai->dev)
3259 goto found;
3260 }
3261 return;
3262
3263found:
Mark Brown91151712008-11-30 23:31:24 +00003264 mutex_lock(&client_mutex);
3265 list_del(&dai->list);
3266 mutex_unlock(&client_mutex);
3267
3268 pr_debug("Unregistered DAI '%s'\n", dai->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003269 kfree(dai->name);
3270 kfree(dai);
Mark Brown91151712008-11-30 23:31:24 +00003271}
3272EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
3273
3274/**
3275 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3276 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003277 * @dai: Array of DAIs to register
3278 * @count: Number of DAIs
Mark Brown91151712008-11-30 23:31:24 +00003279 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003280int snd_soc_register_dais(struct device *dev,
3281 struct snd_soc_dai_driver *dai_drv, size_t count)
Mark Brown91151712008-11-30 23:31:24 +00003282{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003283 struct snd_soc_dai *dai;
3284 int i, ret = 0;
3285
Liam Girdwood720ffa42010-08-18 00:30:30 +01003286 dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count);
Mark Brown91151712008-11-30 23:31:24 +00003287
3288 for (i = 0; i < count; i++) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003289
3290 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
Axel Linc46e0072010-11-03 15:04:45 +08003291 if (dai == NULL) {
3292 ret = -ENOMEM;
3293 goto err;
3294 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003295
3296 /* create DAI component name */
3297 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3298 if (dai->name == NULL) {
3299 kfree(dai);
3300 ret = -EINVAL;
Mark Brown91151712008-11-30 23:31:24 +00003301 goto err;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003302 }
3303
3304 dai->dev = dev;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003305 dai->driver = &dai_drv[i];
Mark Brown0f9141c2010-10-12 15:43:21 +01003306 if (dai->driver->id)
3307 dai->id = dai->driver->id;
3308 else
3309 dai->id = i;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003310 if (!dai->driver->ops)
3311 dai->driver->ops = &null_dai_ops;
3312
3313 mutex_lock(&client_mutex);
3314 list_add(&dai->list, &dai_list);
3315 mutex_unlock(&client_mutex);
3316
3317 pr_debug("Registered DAI '%s'\n", dai->name);
Mark Brown91151712008-11-30 23:31:24 +00003318 }
3319
Axel Lin1dcb4f32010-12-06 16:48:03 +08003320 mutex_lock(&client_mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003321 snd_soc_instantiate_cards();
Axel Lin1dcb4f32010-12-06 16:48:03 +08003322 mutex_unlock(&client_mutex);
Mark Brown91151712008-11-30 23:31:24 +00003323 return 0;
3324
3325err:
3326 for (i--; i >= 0; i--)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003327 snd_soc_unregister_dai(dev);
Mark Brown91151712008-11-30 23:31:24 +00003328
3329 return ret;
3330}
3331EXPORT_SYMBOL_GPL(snd_soc_register_dais);
3332
3333/**
3334 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
3335 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003336 * @dai: Array of DAIs to unregister
3337 * @count: Number of DAIs
Mark Brown91151712008-11-30 23:31:24 +00003338 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003339void snd_soc_unregister_dais(struct device *dev, size_t count)
Mark Brown91151712008-11-30 23:31:24 +00003340{
3341 int i;
3342
3343 for (i = 0; i < count; i++)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003344 snd_soc_unregister_dai(dev);
Mark Brown91151712008-11-30 23:31:24 +00003345}
3346EXPORT_SYMBOL_GPL(snd_soc_unregister_dais);
3347
Mark Brown12a48a8c2008-12-03 19:40:30 +00003348/**
3349 * snd_soc_register_platform - Register a platform with the ASoC core
3350 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003351 * @platform: platform to register
Mark Brown12a48a8c2008-12-03 19:40:30 +00003352 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003353int snd_soc_register_platform(struct device *dev,
3354 struct snd_soc_platform_driver *platform_drv)
Mark Brown12a48a8c2008-12-03 19:40:30 +00003355{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003356 struct snd_soc_platform *platform;
Mark Brown12a48a8c2008-12-03 19:40:30 +00003357
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003358 dev_dbg(dev, "platform register %s\n", dev_name(dev));
3359
3360 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
3361 if (platform == NULL)
Lu Guanquna7393622011-04-20 16:00:51 +08003362 return -ENOMEM;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003363
3364 /* create platform component name */
3365 platform->name = fmt_single_name(dev, &platform->id);
3366 if (platform->name == NULL) {
3367 kfree(platform);
3368 return -ENOMEM;
3369 }
3370
3371 platform->dev = dev;
3372 platform->driver = platform_drv;
Liam Girdwoodb7950642011-07-04 22:10:52 +01003373 platform->dapm.dev = dev;
3374 platform->dapm.platform = platform;
Liam Girdwood64a648c2011-07-25 11:15:15 +01003375 platform->dapm.stream_event = platform_drv->stream_event;
Mark Brown12a48a8c2008-12-03 19:40:30 +00003376
3377 mutex_lock(&client_mutex);
3378 list_add(&platform->list, &platform_list);
Mark Brown435c5e22008-12-04 15:32:53 +00003379 snd_soc_instantiate_cards();
Mark Brown12a48a8c2008-12-03 19:40:30 +00003380 mutex_unlock(&client_mutex);
3381
3382 pr_debug("Registered platform '%s'\n", platform->name);
3383
3384 return 0;
3385}
3386EXPORT_SYMBOL_GPL(snd_soc_register_platform);
3387
3388/**
3389 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
3390 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003391 * @platform: platform to unregister
Mark Brown12a48a8c2008-12-03 19:40:30 +00003392 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003393void snd_soc_unregister_platform(struct device *dev)
Mark Brown12a48a8c2008-12-03 19:40:30 +00003394{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003395 struct snd_soc_platform *platform;
3396
3397 list_for_each_entry(platform, &platform_list, list) {
3398 if (dev == platform->dev)
3399 goto found;
3400 }
3401 return;
3402
3403found:
Mark Brown12a48a8c2008-12-03 19:40:30 +00003404 mutex_lock(&client_mutex);
3405 list_del(&platform->list);
3406 mutex_unlock(&client_mutex);
3407
3408 pr_debug("Unregistered platform '%s'\n", platform->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003409 kfree(platform->name);
3410 kfree(platform);
Mark Brown12a48a8c2008-12-03 19:40:30 +00003411}
3412EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
3413
Mark Brown151ab222009-05-09 16:22:58 +01003414static u64 codec_format_map[] = {
3415 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
3416 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
3417 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
3418 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
3419 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
3420 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
3421 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3422 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3423 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
3424 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
3425 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
3426 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
3427 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
3428 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
3429 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
3430 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
3431};
3432
3433/* Fix up the DAI formats for endianness: codecs don't actually see
3434 * the endianness of the data but we're using the CPU format
3435 * definitions which do need to include endianness so we ensure that
3436 * codec DAIs always have both big and little endian variants set.
3437 */
3438static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
3439{
3440 int i;
3441
3442 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
3443 if (stream->formats & codec_format_map[i])
3444 stream->formats |= codec_format_map[i];
3445}
3446
Mark Brown0d0cf002008-12-10 14:32:45 +00003447/**
3448 * snd_soc_register_codec - Register a codec with the ASoC core
3449 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003450 * @codec: codec to register
Mark Brown0d0cf002008-12-10 14:32:45 +00003451 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003452int snd_soc_register_codec(struct device *dev,
Mark Brown001ae4c2010-12-02 16:21:08 +00003453 const struct snd_soc_codec_driver *codec_drv,
3454 struct snd_soc_dai_driver *dai_drv,
3455 int num_dai)
Mark Brown0d0cf002008-12-10 14:32:45 +00003456{
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003457 size_t reg_size;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003458 struct snd_soc_codec *codec;
3459 int ret, i;
Mark Brown151ab222009-05-09 16:22:58 +01003460
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003461 dev_dbg(dev, "codec register %s\n", dev_name(dev));
Mark Brown0d0cf002008-12-10 14:32:45 +00003462
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003463 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
3464 if (codec == NULL)
3465 return -ENOMEM;
Mark Brown0d0cf002008-12-10 14:32:45 +00003466
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003467 /* create CODEC component name */
3468 codec->name = fmt_single_name(dev, &codec->id);
3469 if (codec->name == NULL) {
3470 kfree(codec);
3471 return -ENOMEM;
Mark Brown151ab222009-05-09 16:22:58 +01003472 }
3473
Dimitris Papastamos23bbce32010-12-02 14:53:01 +00003474 if (codec_drv->compress_type)
3475 codec->compress_type = codec_drv->compress_type;
3476 else
3477 codec->compress_type = SND_SOC_FLAT_COMPRESSION;
3478
Mark Brownc3acec22010-12-02 16:15:29 +00003479 codec->write = codec_drv->write;
3480 codec->read = codec_drv->read;
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00003481 codec->volatile_register = codec_drv->volatile_register;
3482 codec->readable_register = codec_drv->readable_register;
Dimitris Papastamos80204542011-03-24 13:45:17 +00003483 codec->writable_register = codec_drv->writable_register;
Mark Brown5124e692012-02-08 13:20:50 +00003484 codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time;
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003485 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
3486 codec->dapm.dev = dev;
3487 codec->dapm.codec = codec;
Mark Brown474b62d2011-01-18 16:14:44 +00003488 codec->dapm.seq_notifier = codec_drv->seq_notifier;
Liam Girdwood64a648c2011-07-25 11:15:15 +01003489 codec->dapm.stream_event = codec_drv->stream_event;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003490 codec->dev = dev;
3491 codec->driver = codec_drv;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003492 codec->num_dai = num_dai;
3493 mutex_init(&codec->mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003494
Dimitris Papastamos7a30a3d2010-11-11 10:04:57 +00003495 /* allocate CODEC register cache */
3496 if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003497 reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
Dimitris Papastamosaea170a2011-01-12 10:38:58 +00003498 codec->reg_size = reg_size;
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003499 /* it is necessary to make a copy of the default register cache
3500 * because in the case of using a compression type that requires
3501 * the default register cache to be marked as __devinitconst the
3502 * kernel might have freed the array by the time we initialize
3503 * the cache.
3504 */
Dimitris Papastamos2aa86322011-01-10 10:10:56 +00003505 if (codec_drv->reg_cache_default) {
3506 codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
3507 reg_size, GFP_KERNEL);
3508 if (!codec->reg_def_copy) {
3509 ret = -ENOMEM;
3510 goto fail;
3511 }
Dimitris Papastamos7a30a3d2010-11-11 10:04:57 +00003512 }
3513 }
3514
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00003515 if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
3516 if (!codec->volatile_register)
3517 codec->volatile_register = snd_soc_default_volatile_register;
3518 if (!codec->readable_register)
3519 codec->readable_register = snd_soc_default_readable_register;
Dimitris Papastamos80204542011-03-24 13:45:17 +00003520 if (!codec->writable_register)
3521 codec->writable_register = snd_soc_default_writable_register;
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00003522 }
3523
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003524 for (i = 0; i < num_dai; i++) {
3525 fixup_codec_formats(&dai_drv[i].playback);
3526 fixup_codec_formats(&dai_drv[i].capture);
3527 }
3528
Mark Brown26b01cc2010-08-18 20:20:55 +01003529 /* register any DAIs */
3530 if (num_dai) {
3531 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
3532 if (ret < 0)
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00003533 goto fail;
Mark Brown26b01cc2010-08-18 20:20:55 +01003534 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003535
Mark Brown0d0cf002008-12-10 14:32:45 +00003536 mutex_lock(&client_mutex);
3537 list_add(&codec->list, &codec_list);
3538 snd_soc_instantiate_cards();
3539 mutex_unlock(&client_mutex);
3540
3541 pr_debug("Registered codec '%s'\n", codec->name);
Mark Brown0d0cf002008-12-10 14:32:45 +00003542 return 0;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003543
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00003544fail:
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003545 kfree(codec->reg_def_copy);
3546 codec->reg_def_copy = NULL;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003547 kfree(codec->name);
3548 kfree(codec);
3549 return ret;
Mark Brown0d0cf002008-12-10 14:32:45 +00003550}
3551EXPORT_SYMBOL_GPL(snd_soc_register_codec);
3552
3553/**
3554 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
3555 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003556 * @codec: codec to unregister
Mark Brown0d0cf002008-12-10 14:32:45 +00003557 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003558void snd_soc_unregister_codec(struct device *dev)
Mark Brown0d0cf002008-12-10 14:32:45 +00003559{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003560 struct snd_soc_codec *codec;
3561 int i;
3562
3563 list_for_each_entry(codec, &codec_list, list) {
3564 if (dev == codec->dev)
3565 goto found;
3566 }
3567 return;
3568
3569found:
Mark Brown26b01cc2010-08-18 20:20:55 +01003570 if (codec->num_dai)
3571 for (i = 0; i < codec->num_dai; i++)
3572 snd_soc_unregister_dai(dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003573
Mark Brown0d0cf002008-12-10 14:32:45 +00003574 mutex_lock(&client_mutex);
3575 list_del(&codec->list);
3576 mutex_unlock(&client_mutex);
3577
3578 pr_debug("Unregistered codec '%s'\n", codec->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003579
Dimitris Papastamos7a30a3d2010-11-11 10:04:57 +00003580 snd_soc_cache_exit(codec);
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003581 kfree(codec->reg_def_copy);
Dimitris Papastamos1aafcd42010-10-21 13:19:45 +01003582 kfree(codec->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003583 kfree(codec);
Mark Brown0d0cf002008-12-10 14:32:45 +00003584}
3585EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
3586
Stephen Warrenbec4fa02011-12-12 15:55:34 -07003587/* Retrieve a card's name from device tree */
3588int snd_soc_of_parse_card_name(struct snd_soc_card *card,
3589 const char *propname)
3590{
3591 struct device_node *np = card->dev->of_node;
3592 int ret;
3593
3594 ret = of_property_read_string_index(np, propname, 0, &card->name);
3595 /*
3596 * EINVAL means the property does not exist. This is fine providing
3597 * card->name was previously set, which is checked later in
3598 * snd_soc_register_card.
3599 */
3600 if (ret < 0 && ret != -EINVAL) {
3601 dev_err(card->dev,
3602 "Property '%s' could not be read: %d\n",
3603 propname, ret);
3604 return ret;
3605 }
3606
3607 return 0;
3608}
3609EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
3610
Stephen Warrena4a54dd2011-12-12 15:55:35 -07003611int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
3612 const char *propname)
3613{
3614 struct device_node *np = card->dev->of_node;
3615 int num_routes;
3616 struct snd_soc_dapm_route *routes;
3617 int i, ret;
3618
3619 num_routes = of_property_count_strings(np, propname);
3620 if (num_routes & 1) {
3621 dev_err(card->dev,
3622 "Property '%s's length is not even\n",
3623 propname);
3624 return -EINVAL;
3625 }
3626 num_routes /= 2;
3627 if (!num_routes) {
3628 dev_err(card->dev,
3629 "Property '%s's length is zero\n",
3630 propname);
3631 return -EINVAL;
3632 }
3633
3634 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
3635 GFP_KERNEL);
3636 if (!routes) {
3637 dev_err(card->dev,
3638 "Could not allocate DAPM route table\n");
3639 return -EINVAL;
3640 }
3641
3642 for (i = 0; i < num_routes; i++) {
3643 ret = of_property_read_string_index(np, propname,
3644 2 * i, &routes[i].sink);
3645 if (ret) {
3646 dev_err(card->dev,
3647 "Property '%s' index %d could not be read: %d\n",
3648 propname, 2 * i, ret);
3649 return -EINVAL;
3650 }
3651 ret = of_property_read_string_index(np, propname,
3652 (2 * i) + 1, &routes[i].source);
3653 if (ret) {
3654 dev_err(card->dev,
3655 "Property '%s' index %d could not be read: %d\n",
3656 propname, (2 * i) + 1, ret);
3657 return -EINVAL;
3658 }
3659 }
3660
3661 card->num_dapm_routes = num_routes;
3662 card->dapm_routes = routes;
3663
3664 return 0;
3665}
3666EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
3667
Takashi Iwaic9b3a402008-12-10 07:47:22 +01003668static int __init snd_soc_init(void)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003669{
Mark Brown384c89e2008-12-03 17:34:03 +00003670#ifdef CONFIG_DEBUG_FS
Mark Brown8a9dab12011-01-10 22:25:21 +00003671 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
3672 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
Fabio Estevam0837fc62012-02-17 19:40:38 -02003673 pr_warn("ASoC: Failed to create debugfs directory\n");
Mark Brown8a9dab12011-01-10 22:25:21 +00003674 snd_soc_debugfs_root = NULL;
Mark Brown384c89e2008-12-03 17:34:03 +00003675 }
Mark Brownc3c5a192010-09-15 18:15:14 +01003676
Mark Brown8a9dab12011-01-10 22:25:21 +00003677 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
Mark Brownc3c5a192010-09-15 18:15:14 +01003678 &codec_list_fops))
3679 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
3680
Mark Brown8a9dab12011-01-10 22:25:21 +00003681 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
Mark Brownf3208782010-09-15 18:19:07 +01003682 &dai_list_fops))
3683 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
Mark Brown19c7ac22010-09-15 18:22:40 +01003684
Mark Brown8a9dab12011-01-10 22:25:21 +00003685 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
Mark Brown19c7ac22010-09-15 18:22:40 +01003686 &platform_list_fops))
3687 pr_warn("ASoC: Failed to create platform list debugfs file\n");
Mark Brown384c89e2008-12-03 17:34:03 +00003688#endif
3689
Mark Brownfb257892011-04-28 10:57:54 +01003690 snd_soc_util_init();
3691
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003692 return platform_driver_register(&soc_driver);
3693}
Mark Brown4abe8e12010-10-12 17:41:03 +01003694module_init(snd_soc_init);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003695
Mark Brown7d8c16a2008-11-30 22:11:24 +00003696static void __exit snd_soc_exit(void)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003697{
Mark Brownfb257892011-04-28 10:57:54 +01003698 snd_soc_util_exit();
3699
Mark Brown384c89e2008-12-03 17:34:03 +00003700#ifdef CONFIG_DEBUG_FS
Mark Brown8a9dab12011-01-10 22:25:21 +00003701 debugfs_remove_recursive(snd_soc_debugfs_root);
Mark Brown384c89e2008-12-03 17:34:03 +00003702#endif
Mark Brown3ff3f642008-05-19 12:32:25 +02003703 platform_driver_unregister(&soc_driver);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003704}
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003705module_exit(snd_soc_exit);
3706
3707/* Module information */
Liam Girdwoodd3311242008-10-12 13:17:36 +01003708MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003709MODULE_DESCRIPTION("ALSA SoC Core");
3710MODULE_LICENSE("GPL");
Kay Sievers8b45a202008-04-14 13:33:36 +02003711MODULE_ALIAS("platform:soc-audio");