blob: b085d8e87574b2a34d113117f623f76c562a2426 [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>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090033#include <linux/slab.h>
Marek Vasut474828a2009-07-22 13:01:03 +020034#include <sound/ac97_codec.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020035#include <sound/core.h>
Mark Brown3028eb82010-12-05 12:22:46 +000036#include <sound/jack.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020037#include <sound/pcm.h>
38#include <sound/pcm_params.h>
39#include <sound/soc.h>
Frank Mandarinodb2a4162006-10-06 18:31:09 +020040#include <sound/initval.h>
41
Mark Browna8b1d342010-11-03 18:05:58 -040042#define CREATE_TRACE_POINTS
43#include <trace/events/asoc.h>
44
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000045#define NAME_SIZE 32
46
Frank Mandarinodb2a4162006-10-06 18:31:09 +020047static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq);
48
Mark Brown384c89e2008-12-03 17:34:03 +000049#ifdef CONFIG_DEBUG_FS
Mark Brown8a9dab12011-01-10 22:25:21 +000050struct dentry *snd_soc_debugfs_root;
51EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
Mark Brown384c89e2008-12-03 17:34:03 +000052#endif
53
Mark Brownc5af3a22008-11-28 13:29:45 +000054static DEFINE_MUTEX(client_mutex);
55static LIST_HEAD(card_list);
Mark Brown91151712008-11-30 23:31:24 +000056static LIST_HEAD(dai_list);
Mark Brown12a48a8c2008-12-03 19:40:30 +000057static LIST_HEAD(platform_list);
Mark Brown0d0cf002008-12-10 14:32:45 +000058static LIST_HEAD(codec_list);
Mark Brownc5af3a22008-11-28 13:29:45 +000059
Liam Girdwoodddee6272011-06-09 14:45:53 +010060int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
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
108 ret = snd_soc_read(codec , reg);
109 if (ret < 0) {
110 memset(regbuf, 'X', regsize);
111 regbuf[regsize] = '\0';
112 } else {
113 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
114 }
115
116 /* prepare the buffer */
117 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
118 /* copy it back to the caller without the '\0' */
119 memcpy(buf, tmpbuf, len);
120
121 return 0;
122}
123
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) {
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +0000146 if (codec->readable_register && !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{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000172 struct snd_soc_pcm_runtime *rtd =
173 container_of(dev, struct snd_soc_pcm_runtime, dev);
174
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000175 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
Mark Brown2624d5f2009-11-03 21:56:13 +0000176}
177
178static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
179
Mark Browndbe21402010-02-12 11:37:24 +0000180static ssize_t pmdown_time_show(struct device *dev,
181 struct device_attribute *attr, char *buf)
182{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000183 struct snd_soc_pcm_runtime *rtd =
184 container_of(dev, struct snd_soc_pcm_runtime, dev);
Mark Browndbe21402010-02-12 11:37:24 +0000185
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000186 return sprintf(buf, "%ld\n", rtd->pmdown_time);
Mark Browndbe21402010-02-12 11:37:24 +0000187}
188
189static ssize_t pmdown_time_set(struct device *dev,
190 struct device_attribute *attr,
191 const char *buf, size_t count)
192{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000193 struct snd_soc_pcm_runtime *rtd =
194 container_of(dev, struct snd_soc_pcm_runtime, dev);
Mark Brownc593b522010-10-27 20:11:17 -0700195 int ret;
Mark Browndbe21402010-02-12 11:37:24 +0000196
Mark Brownc593b522010-10-27 20:11:17 -0700197 ret = strict_strtol(buf, 10, &rtd->pmdown_time);
198 if (ret)
199 return ret;
Mark Browndbe21402010-02-12 11:37:24 +0000200
201 return count;
202}
203
204static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
205
Mark Brown2624d5f2009-11-03 21:56:13 +0000206#ifdef CONFIG_DEBUG_FS
207static int codec_reg_open_file(struct inode *inode, struct file *file)
208{
209 file->private_data = inode->i_private;
210 return 0;
211}
212
213static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000214 size_t count, loff_t *ppos)
Mark Brown2624d5f2009-11-03 21:56:13 +0000215{
216 ssize_t ret;
217 struct snd_soc_codec *codec = file->private_data;
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000218 char *buf;
219
220 if (*ppos < 0 || !count)
221 return -EINVAL;
222
223 buf = kmalloc(count, GFP_KERNEL);
Mark Brown2624d5f2009-11-03 21:56:13 +0000224 if (!buf)
225 return -ENOMEM;
Dimitris Papastamos13fd1792011-02-02 13:58:58 +0000226
227 ret = soc_codec_reg_show(codec, buf, count, *ppos);
228 if (ret >= 0) {
229 if (copy_to_user(user_buf, buf, ret)) {
230 kfree(buf);
231 return -EFAULT;
232 }
233 *ppos += ret;
234 }
235
Mark Brown2624d5f2009-11-03 21:56:13 +0000236 kfree(buf);
237 return ret;
238}
239
240static ssize_t codec_reg_write_file(struct file *file,
241 const char __user *user_buf, size_t count, loff_t *ppos)
242{
243 char buf[32];
Stephen Boyd34e268d2011-05-12 16:50:10 -0700244 size_t buf_size;
Mark Brown2624d5f2009-11-03 21:56:13 +0000245 char *start = buf;
246 unsigned long reg, value;
247 int step = 1;
248 struct snd_soc_codec *codec = file->private_data;
249
250 buf_size = min(count, (sizeof(buf)-1));
251 if (copy_from_user(buf, user_buf, buf_size))
252 return -EFAULT;
253 buf[buf_size] = 0;
254
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000255 if (codec->driver->reg_cache_step)
256 step = codec->driver->reg_cache_step;
Mark Brown2624d5f2009-11-03 21:56:13 +0000257
258 while (*start == ' ')
259 start++;
260 reg = simple_strtoul(start, &start, 16);
Mark Brown2624d5f2009-11-03 21:56:13 +0000261 while (*start == ' ')
262 start++;
263 if (strict_strtoul(start, 16, &value))
264 return -EINVAL;
Mark Brown0d51a9c2011-01-06 16:04:57 +0000265
266 /* Userspace has been fiddling around behind the kernel's back */
267 add_taint(TAINT_USER);
268
Dimitris Papastamose4f078d2010-12-07 16:30:38 +0000269 snd_soc_write(codec, reg, value);
Mark Brown2624d5f2009-11-03 21:56:13 +0000270 return buf_size;
271}
272
273static const struct file_operations codec_reg_fops = {
274 .open = codec_reg_open_file,
275 .read = codec_reg_read_file,
276 .write = codec_reg_write_file,
Arnd Bergmann6038f372010-08-15 18:52:59 +0200277 .llseek = default_llseek,
Mark Brown2624d5f2009-11-03 21:56:13 +0000278};
279
280static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
281{
Jarkko Nikulad6ce4cf2010-11-05 20:35:20 +0200282 struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
283
284 codec->debugfs_codec_root = debugfs_create_dir(codec->name,
285 debugfs_card_root);
Mark Brown2624d5f2009-11-03 21:56:13 +0000286 if (!codec->debugfs_codec_root) {
287 printk(KERN_WARNING
288 "ASoC: Failed to create codec debugfs directory\n");
289 return;
290 }
291
Mark Brownaaee8ef2011-01-26 20:53:50 +0000292 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
293 &codec->cache_sync);
294 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
295 &codec->cache_only);
296
Mark Brown2624d5f2009-11-03 21:56:13 +0000297 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
298 codec->debugfs_codec_root,
299 codec, &codec_reg_fops);
300 if (!codec->debugfs_reg)
301 printk(KERN_WARNING
302 "ASoC: Failed to create codec register debugfs file\n");
303
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +0200304 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
Mark Brown2624d5f2009-11-03 21:56:13 +0000305}
306
307static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
308{
309 debugfs_remove_recursive(codec->debugfs_codec_root);
310}
311
Mark Brownc3c5a192010-09-15 18:15:14 +0100312static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
313 size_t count, loff_t *ppos)
314{
315 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
Mark Brown2b194f9d2010-10-13 10:52:16 +0100316 ssize_t len, ret = 0;
Mark Brownc3c5a192010-09-15 18:15:14 +0100317 struct snd_soc_codec *codec;
318
319 if (!buf)
320 return -ENOMEM;
321
Mark Brown2b194f9d2010-10-13 10:52:16 +0100322 list_for_each_entry(codec, &codec_list, list) {
323 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
324 codec->name);
325 if (len >= 0)
326 ret += len;
327 if (ret > PAGE_SIZE) {
328 ret = PAGE_SIZE;
329 break;
330 }
331 }
Mark Brownc3c5a192010-09-15 18:15:14 +0100332
333 if (ret >= 0)
334 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
335
336 kfree(buf);
337
338 return ret;
339}
340
341static const struct file_operations codec_list_fops = {
342 .read = codec_list_read_file,
343 .llseek = default_llseek,/* read accesses f_pos */
344};
345
Mark Brownf3208782010-09-15 18:19:07 +0100346static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
347 size_t count, loff_t *ppos)
348{
349 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
Mark Brown2b194f9d2010-10-13 10:52:16 +0100350 ssize_t len, ret = 0;
Mark Brownf3208782010-09-15 18:19:07 +0100351 struct snd_soc_dai *dai;
352
353 if (!buf)
354 return -ENOMEM;
355
Mark Brown2b194f9d2010-10-13 10:52:16 +0100356 list_for_each_entry(dai, &dai_list, list) {
357 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name);
358 if (len >= 0)
359 ret += len;
360 if (ret > PAGE_SIZE) {
361 ret = PAGE_SIZE;
362 break;
363 }
364 }
Mark Brownf3208782010-09-15 18:19:07 +0100365
Mark Brown2b194f9d2010-10-13 10:52:16 +0100366 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
Mark Brownf3208782010-09-15 18:19:07 +0100367
368 kfree(buf);
369
370 return ret;
371}
372
373static const struct file_operations dai_list_fops = {
374 .read = dai_list_read_file,
375 .llseek = default_llseek,/* read accesses f_pos */
376};
377
Mark Brown19c7ac22010-09-15 18:22:40 +0100378static ssize_t platform_list_read_file(struct file *file,
379 char __user *user_buf,
380 size_t count, loff_t *ppos)
381{
382 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
Mark Brown2b194f9d2010-10-13 10:52:16 +0100383 ssize_t len, ret = 0;
Mark Brown19c7ac22010-09-15 18:22:40 +0100384 struct snd_soc_platform *platform;
385
386 if (!buf)
387 return -ENOMEM;
388
Mark Brown2b194f9d2010-10-13 10:52:16 +0100389 list_for_each_entry(platform, &platform_list, list) {
390 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
391 platform->name);
392 if (len >= 0)
393 ret += len;
394 if (ret > PAGE_SIZE) {
395 ret = PAGE_SIZE;
396 break;
397 }
398 }
Mark Brown19c7ac22010-09-15 18:22:40 +0100399
Mark Brown2b194f9d2010-10-13 10:52:16 +0100400 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
Mark Brown19c7ac22010-09-15 18:22:40 +0100401
402 kfree(buf);
403
404 return ret;
405}
406
407static const struct file_operations platform_list_fops = {
408 .read = platform_list_read_file,
409 .llseek = default_llseek,/* read accesses f_pos */
410};
411
Jarkko Nikulaa6052152010-11-05 20:35:19 +0200412static void soc_init_card_debugfs(struct snd_soc_card *card)
413{
414 card->debugfs_card_root = debugfs_create_dir(card->name,
Mark Brown8a9dab12011-01-10 22:25:21 +0000415 snd_soc_debugfs_root);
Jarkko Nikula3a45b862010-11-05 20:35:21 +0200416 if (!card->debugfs_card_root) {
Jarkko Nikulaa6052152010-11-05 20:35:19 +0200417 dev_warn(card->dev,
418 "ASoC: Failed to create codec debugfs directory\n");
Jarkko Nikula3a45b862010-11-05 20:35:21 +0200419 return;
420 }
421
422 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
423 card->debugfs_card_root,
424 &card->pop_time);
425 if (!card->debugfs_pop_time)
426 dev_warn(card->dev,
427 "Failed to create pop time debugfs file\n");
Jarkko Nikulaa6052152010-11-05 20:35:19 +0200428}
429
430static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
431{
432 debugfs_remove_recursive(card->debugfs_card_root);
433}
434
Mark Brown2624d5f2009-11-03 21:56:13 +0000435#else
436
437static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
438{
439}
440
441static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
442{
443}
Axel Linb95fccb2010-11-09 17:06:44 +0800444
445static inline void soc_init_card_debugfs(struct snd_soc_card *card)
446{
447}
448
449static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
450{
451}
Mark Brown2624d5f2009-11-03 21:56:13 +0000452#endif
453
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200454#ifdef CONFIG_SND_SOC_AC97_BUS
455/* unregister ac97 codec */
456static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
457{
458 if (codec->ac97->dev.bus)
459 device_unregister(&codec->ac97->dev);
460 return 0;
461}
462
463/* stop no dev release warning */
464static void soc_ac97_device_release(struct device *dev){}
465
466/* register ac97 codec to bus */
467static int soc_ac97_dev_register(struct snd_soc_codec *codec)
468{
469 int err;
470
471 codec->ac97->dev.bus = &ac97_bus_type;
Mark Brown4ac5c612009-04-01 19:35:01 +0100472 codec->ac97->dev.parent = codec->card->dev;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200473 codec->ac97->dev.release = soc_ac97_device_release;
474
Kay Sieversbb072bf2008-11-02 03:50:35 +0100475 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000476 codec->card->snd_card->number, 0, codec->name);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200477 err = device_register(&codec->ac97->dev);
478 if (err < 0) {
479 snd_printk(KERN_ERR "Can't register ac97 bus\n");
480 codec->ac97->dev.bus = NULL;
481 return err;
482 }
483 return 0;
484}
485#endif
486
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000487#ifdef CONFIG_PM_SLEEP
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200488/* powers down audio subsystem for suspend */
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000489int snd_soc_suspend(struct device *dev)
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200490{
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000491 struct snd_soc_card *card = dev_get_drvdata(dev);
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200492 struct snd_soc_codec *codec;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200493 int i;
494
Daniel Macke3509ff2009-06-03 17:44:49 +0200495 /* If the initialization of this soc device failed, there is no codec
496 * associated with it. Just bail out in this case.
497 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000498 if (list_empty(&card->codec_dev_list))
Daniel Macke3509ff2009-06-03 17:44:49 +0200499 return 0;
500
Andy Green6ed25972008-06-13 16:24:05 +0100501 /* Due to the resume being scheduled into a workqueue we could
502 * suspend before that's finished - wait for it to complete.
503 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000504 snd_power_lock(card->snd_card);
505 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
506 snd_power_unlock(card->snd_card);
Andy Green6ed25972008-06-13 16:24:05 +0100507
508 /* we're going to block userspace touching us until resume completes */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000509 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
Andy Green6ed25972008-06-13 16:24:05 +0100510
Mark Browna00f90f2010-12-02 16:24:24 +0000511 /* mute any active DACs */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000512 for (i = 0; i < card->num_rtd; i++) {
513 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
514 struct snd_soc_dai_driver *drv = dai->driver;
Mark Brown3efab7d2010-05-09 13:25:43 +0100515
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000516 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100517 continue;
518
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000519 if (drv->ops->digital_mute && dai->playback_active)
520 drv->ops->digital_mute(dai, 1);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200521 }
522
Liam Girdwood4ccab3e2008-01-10 14:39:01 +0100523 /* suspend all pcms */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000524 for (i = 0; i < card->num_rtd; i++) {
525 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100526 continue;
527
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000528 snd_pcm_suspend_all(card->rtd[i].pcm);
Mark Brown3efab7d2010-05-09 13:25:43 +0100529 }
Liam Girdwood4ccab3e2008-01-10 14:39:01 +0100530
Mark Brown87506542008-11-18 20:50:34 +0000531 if (card->suspend_pre)
Mark Brown70b2ac12011-01-26 14:05:25 +0000532 card->suspend_pre(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200533
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000534 for (i = 0; i < card->num_rtd; i++) {
535 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
536 struct snd_soc_platform *platform = card->rtd[i].platform;
Mark Brown3efab7d2010-05-09 13:25:43 +0100537
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000538 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100539 continue;
540
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000541 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
542 cpu_dai->driver->suspend(cpu_dai);
543 if (platform->driver->suspend && !platform->suspended) {
544 platform->driver->suspend(cpu_dai);
545 platform->suspended = 1;
Mark Brown1547aba2010-05-07 21:11:40 +0100546 }
547 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200548
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000549 /* close any waiting streams and save state */
550 for (i = 0; i < card->num_rtd; i++) {
Tejun Heo5b84ba22010-12-11 17:51:26 +0100551 flush_delayed_work_sync(&card->rtd[i].delayed_work);
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200552 card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000553 }
Mark Brown3efab7d2010-05-09 13:25:43 +0100554
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000555 for (i = 0; i < card->num_rtd; i++) {
556 struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver;
557
558 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 (driver->playback.stream_name != NULL)
562 snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name,
563 SND_SOC_DAPM_STREAM_SUSPEND);
564
565 if (driver->capture.stream_name != NULL)
566 snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name,
567 SND_SOC_DAPM_STREAM_SUSPEND);
568 }
569
570 /* suspend all CODECs */
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200571 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000572 /* If there are paths active then the CODEC will be held with
573 * bias _ON and should not be suspended. */
574 if (!codec->suspended && codec->driver->suspend) {
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200575 switch (codec->dapm.bias_level) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000576 case SND_SOC_BIAS_STANDBY:
577 case SND_SOC_BIAS_OFF:
578 codec->driver->suspend(codec, PMSG_SUSPEND);
579 codec->suspended = 1;
Mark Brown7be4ba22011-07-18 13:17:13 +0900580 codec->cache_sync = 1;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000581 break;
582 default:
583 dev_dbg(codec->dev, "CODEC is on over suspend\n");
584 break;
585 }
586 }
587 }
588
589 for (i = 0; i < card->num_rtd; i++) {
590 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
591
592 if (card->rtd[i].dai_link->ignore_suspend)
593 continue;
594
595 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
596 cpu_dai->driver->suspend(cpu_dai);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200597 }
598
Mark Brown87506542008-11-18 20:50:34 +0000599 if (card->suspend_post)
Mark Brown70b2ac12011-01-26 14:05:25 +0000600 card->suspend_post(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200601
602 return 0;
603}
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000604EXPORT_SYMBOL_GPL(snd_soc_suspend);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200605
Andy Green6ed25972008-06-13 16:24:05 +0100606/* deferred resume work, so resume can complete before we finished
607 * setting our codec back up, which can be very slow on I2C
608 */
609static void soc_resume_deferred(struct work_struct *work)
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200610{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000611 struct snd_soc_card *card =
612 container_of(work, struct snd_soc_card, deferred_resume_work);
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200613 struct snd_soc_codec *codec;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200614 int i;
615
Andy Green6ed25972008-06-13 16:24:05 +0100616 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
617 * so userspace apps are blocked from touching us
618 */
619
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000620 dev_dbg(card->dev, "starting resume work\n");
Andy Green6ed25972008-06-13 16:24:05 +0100621
Mark Brown99497882010-05-07 20:24:05 +0100622 /* Bring us up into D2 so that DAPM starts enabling things */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000623 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
Mark Brown99497882010-05-07 20:24:05 +0100624
Mark Brown87506542008-11-18 20:50:34 +0000625 if (card->resume_pre)
Mark Brown70b2ac12011-01-26 14:05:25 +0000626 card->resume_pre(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200627
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000628 /* resume AC97 DAIs */
629 for (i = 0; i < card->num_rtd; i++) {
630 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
Mark Brown3efab7d2010-05-09 13:25:43 +0100631
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000632 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100633 continue;
634
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000635 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
636 cpu_dai->driver->resume(cpu_dai);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200637 }
638
Jarkko Nikula2eea3922010-11-25 17:47:38 +0200639 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000640 /* If the CODEC was idle over suspend then it will have been
641 * left with bias OFF or STANDBY and suspended so we must now
642 * resume. Otherwise the suspend was suppressed.
643 */
644 if (codec->driver->resume && codec->suspended) {
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200645 switch (codec->dapm.bias_level) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000646 case SND_SOC_BIAS_STANDBY:
647 case SND_SOC_BIAS_OFF:
648 codec->driver->resume(codec);
649 codec->suspended = 0;
650 break;
651 default:
652 dev_dbg(codec->dev, "CODEC was on over suspend\n");
653 break;
654 }
Mark Brown1547aba2010-05-07 21:11:40 +0100655 }
656 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200657
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000658 for (i = 0; i < card->num_rtd; i++) {
659 struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver;
Mark Brown3efab7d2010-05-09 13:25:43 +0100660
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000661 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100662 continue;
663
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000664 if (driver->playback.stream_name != NULL)
665 snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name,
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200666 SND_SOC_DAPM_STREAM_RESUME);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000667
668 if (driver->capture.stream_name != NULL)
669 snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name,
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200670 SND_SOC_DAPM_STREAM_RESUME);
671 }
672
Mark Brown3ff3f642008-05-19 12:32:25 +0200673 /* unmute any active DACs */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000674 for (i = 0; i < card->num_rtd; i++) {
675 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
676 struct snd_soc_dai_driver *drv = dai->driver;
Mark Brown3efab7d2010-05-09 13:25:43 +0100677
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000678 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100679 continue;
680
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000681 if (drv->ops->digital_mute && dai->playback_active)
682 drv->ops->digital_mute(dai, 0);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200683 }
684
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000685 for (i = 0; i < card->num_rtd; i++) {
686 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
687 struct snd_soc_platform *platform = card->rtd[i].platform;
Mark Brown3efab7d2010-05-09 13:25:43 +0100688
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000689 if (card->rtd[i].dai_link->ignore_suspend)
Mark Brown3efab7d2010-05-09 13:25:43 +0100690 continue;
691
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000692 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
693 cpu_dai->driver->resume(cpu_dai);
694 if (platform->driver->resume && platform->suspended) {
695 platform->driver->resume(cpu_dai);
696 platform->suspended = 0;
697 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200698 }
699
Mark Brown87506542008-11-18 20:50:34 +0000700 if (card->resume_post)
Mark Brown70b2ac12011-01-26 14:05:25 +0000701 card->resume_post(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200702
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000703 dev_dbg(card->dev, "resume work completed\n");
Andy Green6ed25972008-06-13 16:24:05 +0100704
705 /* userspace can access us now we are back as we were before */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000706 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
Andy Green6ed25972008-06-13 16:24:05 +0100707}
708
709/* powers up audio subsystem after a suspend */
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000710int snd_soc_resume(struct device *dev)
Andy Green6ed25972008-06-13 16:24:05 +0100711{
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000712 struct snd_soc_card *card = dev_get_drvdata(dev);
Stephen Warren82e14e82011-05-25 14:06:41 -0600713 int i, ac97_control = 0;
Peter Ujfalusib9dd94a2010-02-22 13:27:13 +0200714
Mark Brown64ab9ba2009-03-31 11:27:03 +0100715 /* AC97 devices might have other drivers hanging off them so
716 * need to resume immediately. Other drivers don't have that
717 * problem and may take a substantial amount of time to resume
718 * due to I/O costs and anti-pop so handle them out of line.
719 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000720 for (i = 0; i < card->num_rtd; i++) {
721 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
Stephen Warren82e14e82011-05-25 14:06:41 -0600722 ac97_control |= cpu_dai->driver->ac97_control;
723 }
724 if (ac97_control) {
725 dev_dbg(dev, "Resuming AC97 immediately\n");
726 soc_resume_deferred(&card->deferred_resume_work);
727 } else {
728 dev_dbg(dev, "Scheduling resume work\n");
729 if (!schedule_work(&card->deferred_resume_work))
730 dev_err(dev, "resume work item may be lost\n");
Mark Brown64ab9ba2009-03-31 11:27:03 +0100731 }
Andy Green6ed25972008-06-13 16:24:05 +0100732
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200733 return 0;
734}
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000735EXPORT_SYMBOL_GPL(snd_soc_resume);
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200736#else
Mark Brown6f8ab4a2011-01-26 14:59:27 +0000737#define snd_soc_suspend NULL
738#define snd_soc_resume NULL
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200739#endif
740
Barry Song02a06d32009-10-16 18:13:38 +0800741static struct snd_soc_dai_ops null_dai_ops = {
742};
743
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000744static int soc_bind_dai_link(struct snd_soc_card *card, int num)
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200745{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000746 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
747 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
Mark Brownfe3e78e2009-11-03 22:13:13 +0000748 struct snd_soc_codec *codec;
Mark Brown435c5e22008-12-04 15:32:53 +0000749 struct snd_soc_platform *platform;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000750 struct snd_soc_dai *codec_dai, *cpu_dai;
Mark Brown848dd8b2011-04-27 18:16:32 +0100751 const char *platform_name;
Frank Mandarinodb2a4162006-10-06 18:31:09 +0200752
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000753 if (rtd->complete)
754 return 1;
755 dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num);
Mark Brown63084192008-12-02 15:08:03 +0000756
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000757 /* do we already have the CPU DAI for this link ? */
758 if (rtd->cpu_dai) {
759 goto find_codec;
760 }
761 /* no, then find CPU DAI from registered DAIs*/
762 list_for_each_entry(cpu_dai, &dai_list, list) {
763 if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000764 rtd->cpu_dai = cpu_dai;
765 goto find_codec;
Mark Brown435c5e22008-12-04 15:32:53 +0000766 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000767 }
768 dev_dbg(card->dev, "CPU DAI %s not registered\n",
769 dai_link->cpu_dai_name);
770
771find_codec:
772 /* do we already have the CODEC for this link ? */
773 if (rtd->codec) {
774 goto find_platform;
Mark Brownc5af3a22008-11-28 13:29:45 +0000775 }
776
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000777 /* no, then find CODEC from registered CODECs*/
778 list_for_each_entry(codec, &codec_list, list) {
779 if (!strcmp(codec->name, dai_link->codec_name)) {
780 rtd->codec = codec;
Mark Brown6b05eda2008-12-08 19:26:48 +0000781
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000782 /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/
783 list_for_each_entry(codec_dai, &dai_list, list) {
784 if (codec->dev == codec_dai->dev &&
785 !strcmp(codec_dai->name, dai_link->codec_dai_name)) {
786 rtd->codec_dai = codec_dai;
787 goto find_platform;
Mark Brown6b05eda2008-12-08 19:26:48 +0000788 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000789 }
790 dev_dbg(card->dev, "CODEC DAI %s not registered\n",
791 dai_link->codec_dai_name);
792
793 goto find_platform;
794 }
795 }
796 dev_dbg(card->dev, "CODEC %s not registered\n",
797 dai_link->codec_name);
798
799find_platform:
Mark Brown848dd8b2011-04-27 18:16:32 +0100800 /* do we need a platform? */
801 if (rtd->platform)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000802 goto out;
Mark Brown848dd8b2011-04-27 18:16:32 +0100803
804 /* if there's no platform we match on the empty platform */
805 platform_name = dai_link->platform_name;
806 if (!platform_name)
807 platform_name = "snd-soc-dummy";
808
809 /* no, then find one from the set of registered platforms */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000810 list_for_each_entry(platform, &platform_list, list) {
Mark Brown848dd8b2011-04-27 18:16:32 +0100811 if (!strcmp(platform->name, platform_name)) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000812 rtd->platform = platform;
813 goto out;
814 }
815 }
816
817 dev_dbg(card->dev, "platform %s not registered\n",
818 dai_link->platform_name);
819 return 0;
820
821out:
822 /* mark rtd as complete if we found all 4 of our client devices */
823 if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) {
824 rtd->complete = 1;
825 card->num_rtd++;
826 }
827 return 1;
828}
829
Jarkko Nikula589c3562010-12-06 16:27:07 +0200830static void soc_remove_codec(struct snd_soc_codec *codec)
831{
832 int err;
833
834 if (codec->driver->remove) {
835 err = codec->driver->remove(codec);
836 if (err < 0)
837 dev_err(codec->dev,
838 "asoc: failed to remove %s: %d\n",
839 codec->name, err);
840 }
841
842 /* Make sure all DAPM widgets are freed */
843 snd_soc_dapm_free(&codec->dapm);
844
845 soc_cleanup_codec_debugfs(codec);
846 codec->probed = 0;
847 list_del(&codec->card_list);
848 module_put(codec->dev->driver->owner);
849}
850
Liam Girdwood0168bf02011-06-07 16:08:05 +0100851static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000852{
853 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
854 struct snd_soc_codec *codec = rtd->codec;
855 struct snd_soc_platform *platform = rtd->platform;
856 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
857 int err;
858
859 /* unregister the rtd device */
860 if (rtd->dev_registered) {
861 device_remove_file(&rtd->dev, &dev_attr_pmdown_time);
Jarkko Nikula589c3562010-12-06 16:27:07 +0200862 device_remove_file(&rtd->dev, &dev_attr_codec_reg);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000863 device_unregister(&rtd->dev);
864 rtd->dev_registered = 0;
865 }
866
867 /* remove the CODEC DAI */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100868 if (codec_dai && codec_dai->probed &&
869 codec_dai->driver->remove_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000870 if (codec_dai->driver->remove) {
871 err = codec_dai->driver->remove(codec_dai);
872 if (err < 0)
873 printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name);
874 }
875 codec_dai->probed = 0;
876 list_del(&codec_dai->card_list);
877 }
878
879 /* remove the platform */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100880 if (platform && platform->probed &&
881 platform->driver->remove_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000882 if (platform->driver->remove) {
883 err = platform->driver->remove(platform);
884 if (err < 0)
885 printk(KERN_ERR "asoc: failed to remove %s\n", platform->name);
886 }
887 platform->probed = 0;
888 list_del(&platform->card_list);
889 module_put(platform->dev->driver->owner);
890 }
891
892 /* remove the CODEC */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100893 if (codec && codec->probed &&
894 codec->driver->remove_order == order)
Jarkko Nikula589c3562010-12-06 16:27:07 +0200895 soc_remove_codec(codec);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000896
897 /* remove the cpu_dai */
Liam Girdwood0168bf02011-06-07 16:08:05 +0100898 if (cpu_dai && cpu_dai->probed &&
899 cpu_dai->driver->remove_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000900 if (cpu_dai->driver->remove) {
901 err = cpu_dai->driver->remove(cpu_dai);
902 if (err < 0)
903 printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name);
904 }
905 cpu_dai->probed = 0;
906 list_del(&cpu_dai->card_list);
907 module_put(cpu_dai->dev->driver->owner);
908 }
909}
910
Kuninori Morimoto0671fd82011-04-08 14:50:44 +0900911static void soc_remove_dai_links(struct snd_soc_card *card)
912{
Liam Girdwood0168bf02011-06-07 16:08:05 +0100913 int dai, order;
Kuninori Morimoto0671fd82011-04-08 14:50:44 +0900914
Liam Girdwood0168bf02011-06-07 16:08:05 +0100915 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
916 order++) {
917 for (dai = 0; dai < card->num_rtd; dai++)
918 soc_remove_dai_link(card, dai, order);
919 }
Kuninori Morimoto0671fd82011-04-08 14:50:44 +0900920 card->num_rtd = 0;
921}
922
Jarkko Nikulaead9b912010-11-13 20:40:44 +0200923static void soc_set_name_prefix(struct snd_soc_card *card,
924 struct snd_soc_codec *codec)
925{
926 int i;
927
Dimitris Papastamosff819b82010-12-02 14:53:03 +0000928 if (card->codec_conf == NULL)
Jarkko Nikulaead9b912010-11-13 20:40:44 +0200929 return;
930
Dimitris Papastamosff819b82010-12-02 14:53:03 +0000931 for (i = 0; i < card->num_configs; i++) {
932 struct snd_soc_codec_conf *map = &card->codec_conf[i];
Jarkko Nikulaead9b912010-11-13 20:40:44 +0200933 if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
934 codec->name_prefix = map->name_prefix;
935 break;
936 }
937 }
938}
939
Jarkko Nikula589c3562010-12-06 16:27:07 +0200940static int soc_probe_codec(struct snd_soc_card *card,
941 struct snd_soc_codec *codec)
942{
943 int ret = 0;
Mark Brown89b95ac02011-03-07 16:38:44 +0000944 const struct snd_soc_codec_driver *driver = codec->driver;
Jarkko Nikula589c3562010-12-06 16:27:07 +0200945
946 codec->card = card;
947 codec->dapm.card = card;
948 soc_set_name_prefix(card, codec);
949
Jarkko Nikula70d29332011-01-27 16:24:22 +0200950 if (!try_module_get(codec->dev->driver->owner))
951 return -ENODEV;
952
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +0200953 soc_init_codec_debugfs(codec);
954
Lars-Peter Clausen77530152011-05-05 16:59:09 +0200955 if (driver->dapm_widgets)
956 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
957 driver->num_dapm_widgets);
958
Mark Brown89b95ac02011-03-07 16:38:44 +0000959 if (driver->probe) {
960 ret = driver->probe(codec);
Jarkko Nikula589c3562010-12-06 16:27:07 +0200961 if (ret < 0) {
962 dev_err(codec->dev,
963 "asoc: failed to probe CODEC %s: %d\n",
964 codec->name, ret);
Jarkko Nikula70d29332011-01-27 16:24:22 +0200965 goto err_probe;
Jarkko Nikula589c3562010-12-06 16:27:07 +0200966 }
967 }
968
Mark Brownb7af1da2011-04-07 19:18:44 +0900969 if (driver->controls)
970 snd_soc_add_controls(codec, driver->controls,
971 driver->num_controls);
Mark Brown89b95ac02011-03-07 16:38:44 +0000972 if (driver->dapm_routes)
973 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
974 driver->num_dapm_routes);
975
Jarkko Nikula589c3562010-12-06 16:27:07 +0200976 /* mark codec as probed and add to card codec list */
977 codec->probed = 1;
978 list_add(&codec->card_list, &card->codec_dev_list);
Jarkko Nikula7be31be82010-12-14 12:18:32 +0200979 list_add(&codec->dapm.list, &card->dapm_list);
Jarkko Nikula589c3562010-12-06 16:27:07 +0200980
Jarkko Nikula70d29332011-01-27 16:24:22 +0200981 return 0;
982
983err_probe:
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +0200984 soc_cleanup_codec_debugfs(codec);
Jarkko Nikula70d29332011-01-27 16:24:22 +0200985 module_put(codec->dev->driver->owner);
986
Jarkko Nikula589c3562010-12-06 16:27:07 +0200987 return ret;
988}
989
Liam Girdwood956245e2011-07-01 16:54:08 +0100990static int soc_probe_platform(struct snd_soc_card *card,
991 struct snd_soc_platform *platform)
992{
993 int ret = 0;
994 const struct snd_soc_platform_driver *driver = platform->driver;
995
996 platform->card = card;
Liam Girdwoodb7950642011-07-04 22:10:52 +0100997 platform->dapm.card = card;
Liam Girdwood956245e2011-07-01 16:54:08 +0100998
999 if (!try_module_get(platform->dev->driver->owner))
1000 return -ENODEV;
1001
Liam Girdwoodcb2cf612011-07-04 22:10:53 +01001002 if (driver->dapm_widgets)
1003 snd_soc_dapm_new_controls(&platform->dapm,
1004 driver->dapm_widgets, driver->num_dapm_widgets);
1005
Liam Girdwood956245e2011-07-01 16:54:08 +01001006 if (driver->probe) {
1007 ret = driver->probe(platform);
1008 if (ret < 0) {
1009 dev_err(platform->dev,
1010 "asoc: failed to probe platform %s: %d\n",
1011 platform->name, ret);
1012 goto err_probe;
1013 }
1014 }
1015
Liam Girdwoodcb2cf612011-07-04 22:10:53 +01001016 if (driver->controls)
1017 snd_soc_add_platform_controls(platform, driver->controls,
1018 driver->num_controls);
1019 if (driver->dapm_routes)
1020 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1021 driver->num_dapm_routes);
1022
Liam Girdwood956245e2011-07-01 16:54:08 +01001023 /* mark platform as probed and add to card platform list */
1024 platform->probed = 1;
1025 list_add(&platform->card_list, &card->platform_dev_list);
Liam Girdwoodb7950642011-07-04 22:10:52 +01001026 list_add(&platform->dapm.list, &card->dapm_list);
Liam Girdwood956245e2011-07-01 16:54:08 +01001027
1028 return 0;
1029
1030err_probe:
1031 module_put(platform->dev->driver->owner);
1032
1033 return ret;
1034}
1035
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001036static void rtd_release(struct device *dev) {}
1037
Jarkko Nikula589c3562010-12-06 16:27:07 +02001038static int soc_post_component_init(struct snd_soc_card *card,
1039 struct snd_soc_codec *codec,
1040 int num, int dailess)
1041{
1042 struct snd_soc_dai_link *dai_link = NULL;
1043 struct snd_soc_aux_dev *aux_dev = NULL;
1044 struct snd_soc_pcm_runtime *rtd;
1045 const char *temp, *name;
1046 int ret = 0;
1047
1048 if (!dailess) {
1049 dai_link = &card->dai_link[num];
1050 rtd = &card->rtd[num];
1051 name = dai_link->name;
1052 } else {
1053 aux_dev = &card->aux_dev[num];
1054 rtd = &card->rtd_aux[num];
1055 name = aux_dev->name;
1056 }
Janusz Krzysztofik0962bb22011-02-02 21:11:41 +01001057 rtd->card = card;
Jarkko Nikula589c3562010-12-06 16:27:07 +02001058
1059 /* machine controls, routes and widgets are not prefixed */
1060 temp = codec->name_prefix;
1061 codec->name_prefix = NULL;
1062
1063 /* do machine specific initialization */
1064 if (!dailess && dai_link->init)
1065 ret = dai_link->init(rtd);
1066 else if (dailess && aux_dev->init)
1067 ret = aux_dev->init(&codec->dapm);
1068 if (ret < 0) {
1069 dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret);
1070 return ret;
1071 }
1072 codec->name_prefix = temp;
1073
1074 /* Make sure all DAPM widgets are instantiated */
1075 snd_soc_dapm_new_widgets(&codec->dapm);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001076
1077 /* register the rtd device */
1078 rtd->codec = codec;
Jarkko Nikula589c3562010-12-06 16:27:07 +02001079 rtd->dev.parent = card->dev;
1080 rtd->dev.release = rtd_release;
1081 rtd->dev.init_name = name;
Liam Girdwoodb8c0dab2011-06-09 17:04:39 +01001082 mutex_init(&rtd->pcm_mutex);
Jarkko Nikula589c3562010-12-06 16:27:07 +02001083 ret = device_register(&rtd->dev);
1084 if (ret < 0) {
1085 dev_err(card->dev,
1086 "asoc: failed to register runtime device: %d\n", ret);
1087 return ret;
1088 }
1089 rtd->dev_registered = 1;
1090
1091 /* add DAPM sysfs entries for this codec */
1092 ret = snd_soc_dapm_sys_add(&rtd->dev);
1093 if (ret < 0)
1094 dev_err(codec->dev,
1095 "asoc: failed to add codec dapm sysfs entries: %d\n",
1096 ret);
1097
1098 /* add codec sysfs entries */
1099 ret = device_create_file(&rtd->dev, &dev_attr_codec_reg);
1100 if (ret < 0)
1101 dev_err(codec->dev,
1102 "asoc: failed to add codec sysfs files: %d\n", ret);
1103
1104 return 0;
1105}
1106
Liam Girdwood0168bf02011-06-07 16:08:05 +01001107static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001108{
1109 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1110 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1111 struct snd_soc_codec *codec = rtd->codec;
1112 struct snd_soc_platform *platform = rtd->platform;
1113 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
1114 int ret;
1115
Liam Girdwood0168bf02011-06-07 16:08:05 +01001116 dev_dbg(card->dev, "probe %s dai link %d late %d\n",
1117 card->name, num, order);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001118
1119 /* config components */
1120 codec_dai->codec = codec;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001121 cpu_dai->platform = platform;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001122 codec_dai->card = card;
1123 cpu_dai->card = card;
1124
1125 /* set default power off timeout */
1126 rtd->pmdown_time = pmdown_time;
1127
1128 /* probe the cpu_dai */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001129 if (!cpu_dai->probed &&
1130 cpu_dai->driver->probe_order == order) {
Liam Girdwood61b61e32011-05-24 13:57:43 +01001131 if (!try_module_get(cpu_dai->dev->driver->owner))
1132 return -ENODEV;
1133
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001134 if (cpu_dai->driver->probe) {
1135 ret = cpu_dai->driver->probe(cpu_dai);
1136 if (ret < 0) {
1137 printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n",
1138 cpu_dai->name);
Liam Girdwood61b61e32011-05-24 13:57:43 +01001139 module_put(cpu_dai->dev->driver->owner);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001140 return ret;
1141 }
1142 }
1143 cpu_dai->probed = 1;
Wolfram Sang1c8371d2011-07-17 18:00:26 +02001144 /* mark cpu_dai as probed and add to card dai list */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001145 list_add(&cpu_dai->card_list, &card->dai_dev_list);
1146 }
1147
1148 /* probe the CODEC */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001149 if (!codec->probed &&
1150 codec->driver->probe_order == order) {
Jarkko Nikula589c3562010-12-06 16:27:07 +02001151 ret = soc_probe_codec(card, codec);
1152 if (ret < 0)
1153 return ret;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001154 }
1155
1156 /* probe the platform */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001157 if (!platform->probed &&
1158 platform->driver->probe_order == order) {
Liam Girdwood956245e2011-07-01 16:54:08 +01001159 ret = soc_probe_platform(card, platform);
1160 if (ret < 0)
1161 return ret;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001162 }
1163
1164 /* probe the CODEC DAI */
Liam Girdwood0168bf02011-06-07 16:08:05 +01001165 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001166 if (codec_dai->driver->probe) {
1167 ret = codec_dai->driver->probe(codec_dai);
1168 if (ret < 0) {
1169 printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n",
1170 codec_dai->name);
1171 return ret;
Mark Brown6b05eda2008-12-08 19:26:48 +00001172 }
1173 }
1174
Wolfram Sang1c8371d2011-07-17 18:00:26 +02001175 /* mark codec_dai as probed and add to card dai list */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001176 codec_dai->probed = 1;
1177 list_add(&codec_dai->card_list, &card->dai_dev_list);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001178 }
1179
Liam Girdwood0168bf02011-06-07 16:08:05 +01001180 /* complete DAI probe during last probe */
1181 if (order != SND_SOC_COMP_ORDER_LAST)
1182 return 0;
1183
Jarkko Nikula589c3562010-12-06 16:27:07 +02001184 ret = soc_post_component_init(card, codec, num, 0);
1185 if (ret)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001186 return ret;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001187
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001188 ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time);
1189 if (ret < 0)
1190 printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n");
1191
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001192 /* create the pcm */
1193 ret = soc_new_pcm(rtd, num);
1194 if (ret < 0) {
1195 printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name);
1196 return ret;
1197 }
1198
1199 /* add platform data for AC97 devices */
1200 if (rtd->codec_dai->driver->ac97_control)
1201 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1202
1203 return 0;
1204}
1205
1206#ifdef CONFIG_SND_SOC_AC97_BUS
1207static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1208{
1209 int ret;
1210
1211 /* Only instantiate AC97 if not already done by the adaptor
1212 * for the generic AC97 subsystem.
1213 */
1214 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
Mika Westerberg0562f782010-10-13 11:30:32 +03001215 /*
1216 * It is possible that the AC97 device is already registered to
1217 * the device subsystem. This happens when the device is created
1218 * via snd_ac97_mixer(). Currently only SoC codec that does so
1219 * is the generic AC97 glue but others migh emerge.
1220 *
1221 * In those cases we don't try to register the device again.
1222 */
1223 if (!rtd->codec->ac97_created)
1224 return 0;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001225
1226 ret = soc_ac97_dev_register(rtd->codec);
1227 if (ret < 0) {
1228 printk(KERN_ERR "asoc: AC97 device register failed\n");
1229 return ret;
1230 }
1231
1232 rtd->codec->ac97_registered = 1;
1233 }
1234 return 0;
1235}
1236
1237static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1238{
1239 if (codec->ac97_registered) {
1240 soc_ac97_dev_unregister(codec);
1241 codec->ac97_registered = 0;
1242 }
1243}
1244#endif
1245
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001246static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1247{
1248 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001249 struct snd_soc_codec *codec;
Jarkko Nikula676ad982010-12-03 09:18:22 +02001250 int ret = -ENODEV;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001251
1252 /* find CODEC from registered CODECs*/
1253 list_for_each_entry(codec, &codec_list, list) {
1254 if (!strcmp(codec->name, aux_dev->codec_name)) {
1255 if (codec->probed) {
1256 dev_err(codec->dev,
1257 "asoc: codec already probed");
1258 ret = -EBUSY;
1259 goto out;
1260 }
Jarkko Nikula676ad982010-12-03 09:18:22 +02001261 goto found;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001262 }
1263 }
Jarkko Nikula676ad982010-12-03 09:18:22 +02001264 /* codec not found */
1265 dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name);
1266 goto out;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001267
Jarkko Nikula676ad982010-12-03 09:18:22 +02001268found:
Jarkko Nikula589c3562010-12-06 16:27:07 +02001269 ret = soc_probe_codec(card, codec);
1270 if (ret < 0)
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001271 return ret;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001272
Jarkko Nikula589c3562010-12-06 16:27:07 +02001273 ret = soc_post_component_init(card, codec, num, 1);
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001274
1275out:
1276 return ret;
1277}
1278
1279static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1280{
1281 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1282 struct snd_soc_codec *codec = rtd->codec;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001283
1284 /* unregister the rtd device */
1285 if (rtd->dev_registered) {
Jarkko Nikula589c3562010-12-06 16:27:07 +02001286 device_remove_file(&rtd->dev, &dev_attr_codec_reg);
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001287 device_unregister(&rtd->dev);
1288 rtd->dev_registered = 0;
1289 }
1290
Jarkko Nikula589c3562010-12-06 16:27:07 +02001291 if (codec && codec->probed)
1292 soc_remove_codec(codec);
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001293}
1294
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001295static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
1296 enum snd_soc_compress_type compress_type)
1297{
1298 int ret;
1299
1300 if (codec->cache_init)
1301 return 0;
1302
1303 /* override the compress_type if necessary */
1304 if (compress_type && codec->compress_type != compress_type)
1305 codec->compress_type = compress_type;
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001306 ret = snd_soc_cache_init(codec);
1307 if (ret < 0) {
1308 dev_err(codec->dev, "Failed to set cache compression type: %d\n",
1309 ret);
1310 return ret;
1311 }
1312 codec->cache_init = 1;
1313 return 0;
1314}
1315
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001316static void snd_soc_instantiate_card(struct snd_soc_card *card)
1317{
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001318 struct snd_soc_codec *codec;
1319 struct snd_soc_codec_conf *codec_conf;
1320 enum snd_soc_compress_type compress_type;
Liam Girdwood0168bf02011-06-07 16:08:05 +01001321 int ret, i, order;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001322
1323 mutex_lock(&card->mutex);
1324
1325 if (card->instantiated) {
1326 mutex_unlock(&card->mutex);
1327 return;
1328 }
1329
1330 /* bind DAIs */
1331 for (i = 0; i < card->num_links; i++)
1332 soc_bind_dai_link(card, i);
1333
1334 /* bind completed ? */
1335 if (card->num_rtd != card->num_links) {
1336 mutex_unlock(&card->mutex);
1337 return;
1338 }
1339
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001340 /* initialize the register cache for each available codec */
1341 list_for_each_entry(codec, &codec_list, list) {
1342 if (codec->cache_init)
1343 continue;
Dimitris Papastamos861f2fa2011-01-11 11:43:51 +00001344 /* by default we don't override the compress_type */
1345 compress_type = 0;
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001346 /* check to see if we need to override the compress_type */
1347 for (i = 0; i < card->num_configs; ++i) {
1348 codec_conf = &card->codec_conf[i];
1349 if (!strcmp(codec->name, codec_conf->dev_name)) {
1350 compress_type = codec_conf->compress_type;
1351 if (compress_type && compress_type
1352 != codec->compress_type)
1353 break;
1354 }
1355 }
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00001356 ret = snd_soc_init_codec_cache(codec, compress_type);
1357 if (ret < 0) {
1358 mutex_unlock(&card->mutex);
1359 return;
1360 }
1361 }
1362
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001363 /* card bind complete so register a sound card */
1364 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1365 card->owner, 0, &card->snd_card);
1366 if (ret < 0) {
1367 printk(KERN_ERR "asoc: can't create sound card for card %s\n",
1368 card->name);
1369 mutex_unlock(&card->mutex);
1370 return;
1371 }
1372 card->snd_card->dev = card->dev;
1373
Mark Browne37a4972011-03-02 18:21:57 +00001374 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1375 card->dapm.dev = card->dev;
1376 card->dapm.card = card;
1377 list_add(&card->dapm.list, &card->dapm_list);
1378
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001379#ifdef CONFIG_DEBUG_FS
1380 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1381#endif
1382
Mark Brown88ee1c62011-02-02 10:43:26 +00001383#ifdef CONFIG_PM_SLEEP
Andy Green6ed25972008-06-13 16:24:05 +01001384 /* deferred resume work */
Mark Brown63084192008-12-02 15:08:03 +00001385 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
Randy Dunlap1301a962008-06-17 19:19:34 +01001386#endif
Andy Green6ed25972008-06-13 16:24:05 +01001387
Mark Brown9a841eb2011-04-12 17:51:37 -07001388 if (card->dapm_widgets)
1389 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1390 card->num_dapm_widgets);
1391
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001392 /* initialise the sound card only once */
1393 if (card->probe) {
Mark Browne7361ec2011-01-26 14:17:20 +00001394 ret = card->probe(card);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001395 if (ret < 0)
1396 goto card_probe_error;
1397 }
1398
Liam Girdwood0168bf02011-06-07 16:08:05 +01001399 /* early DAI link probe */
1400 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1401 order++) {
1402 for (i = 0; i < card->num_links; i++) {
1403 ret = soc_probe_dai_link(card, i, order);
1404 if (ret < 0) {
1405 pr_err("asoc: failed to instantiate card %s: %d\n",
Mark Brown321de0d2010-09-21 15:09:37 +01001406 card->name, ret);
Liam Girdwood0168bf02011-06-07 16:08:05 +01001407 goto probe_dai_err;
1408 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001409 }
1410 }
1411
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001412 for (i = 0; i < card->num_aux_devs; i++) {
1413 ret = soc_probe_aux_dev(card, i);
1414 if (ret < 0) {
1415 pr_err("asoc: failed to add auxiliary devices %s: %d\n",
1416 card->name, ret);
1417 goto probe_aux_dev_err;
1418 }
1419 }
1420
Mark Brownb7af1da2011-04-07 19:18:44 +09001421 /* We should have a non-codec control add function but we don't */
1422 if (card->controls)
1423 snd_soc_add_controls(list_first_entry(&card->codec_dev_list,
1424 struct snd_soc_codec,
1425 card_list),
1426 card->controls,
1427 card->num_controls);
1428
Mark Brownb8ad29d2011-03-02 18:35:51 +00001429 if (card->dapm_routes)
1430 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1431 card->num_dapm_routes);
1432
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001433 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001434 "%s", card->name);
Liam Girdwood22de71b2011-05-12 16:14:04 +01001435 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1436 "%s", card->long_name ? card->long_name : card->name);
Takashi Iwai873bd4c2011-07-05 09:25:59 +02001437 if (card->driver_name)
1438 strlcpy(card->snd_card->driver, card->driver_name,
1439 sizeof(card->snd_card->driver));
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001440
Mark Brown28e9ad92011-03-02 18:36:34 +00001441 if (card->late_probe) {
1442 ret = card->late_probe(card);
1443 if (ret < 0) {
1444 dev_err(card->dev, "%s late_probe() failed: %d\n",
1445 card->name, ret);
1446 goto probe_aux_dev_err;
1447 }
1448 }
1449
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001450 ret = snd_card_register(card->snd_card);
1451 if (ret < 0) {
1452 printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name);
Axel Lin6b3ed782010-12-07 16:12:29 +08001453 goto probe_aux_dev_err;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001454 }
1455
1456#ifdef CONFIG_SND_SOC_AC97_BUS
1457 /* register any AC97 codecs */
1458 for (i = 0; i < card->num_rtd; i++) {
Axel Lin6b3ed782010-12-07 16:12:29 +08001459 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1460 if (ret < 0) {
1461 printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name);
1462 while (--i >= 0)
Mark Brown7d8316d2010-12-13 17:03:27 +00001463 soc_unregister_ac97_dai_link(card->rtd[i].codec);
Axel Lin6b3ed782010-12-07 16:12:29 +08001464 goto probe_aux_dev_err;
Mark Brownfe3e78e2009-11-03 22:13:13 +00001465 }
Axel Lin6b3ed782010-12-07 16:12:29 +08001466 }
Mark Brownfe3e78e2009-11-03 22:13:13 +00001467#endif
1468
Mark Brown435c5e22008-12-04 15:32:53 +00001469 card->instantiated = 1;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001470 mutex_unlock(&card->mutex);
Mark Brown435c5e22008-12-04 15:32:53 +00001471 return;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001472
Jarkko Nikula2eea3922010-11-25 17:47:38 +02001473probe_aux_dev_err:
1474 for (i = 0; i < card->num_aux_devs; i++)
1475 soc_remove_aux_dev(card, i);
1476
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001477probe_dai_err:
Kuninori Morimoto0671fd82011-04-08 14:50:44 +09001478 soc_remove_dai_links(card);
Mark Brownfe3e78e2009-11-03 22:13:13 +00001479
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001480card_probe_error:
Mark Brown87506542008-11-18 20:50:34 +00001481 if (card->remove)
Mark Browne7361ec2011-01-26 14:17:20 +00001482 card->remove(card);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001483
1484 snd_card_free(card->snd_card);
1485
1486 mutex_unlock(&card->mutex);
Mark Brown435c5e22008-12-04 15:32:53 +00001487}
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001488
Mark Brown435c5e22008-12-04 15:32:53 +00001489/*
Uwe Kleine-König421f91d2010-06-11 12:17:00 +02001490 * Attempt to initialise any uninitialised cards. Must be called with
Mark Brown435c5e22008-12-04 15:32:53 +00001491 * client_mutex.
1492 */
1493static void snd_soc_instantiate_cards(void)
1494{
1495 struct snd_soc_card *card;
1496 list_for_each_entry(card, &card_list, list)
1497 snd_soc_instantiate_card(card);
1498}
1499
1500/* probes a new socdev */
1501static int soc_probe(struct platform_device *pdev)
1502{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001503 struct snd_soc_card *card = platform_get_drvdata(pdev);
Mark Brown435c5e22008-12-04 15:32:53 +00001504 int ret = 0;
Mark Brown435c5e22008-12-04 15:32:53 +00001505
Vinod Koul70a7ca32011-01-14 19:22:48 +05301506 /*
1507 * no card, so machine driver should be registering card
1508 * we should not be here in that case so ret error
1509 */
1510 if (!card)
1511 return -EINVAL;
1512
Mark Brown435c5e22008-12-04 15:32:53 +00001513 /* Bodge while we unpick instantiation */
1514 card->dev = &pdev->dev;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001515
Mark Brown435c5e22008-12-04 15:32:53 +00001516 ret = snd_soc_register_card(card);
1517 if (ret != 0) {
1518 dev_err(&pdev->dev, "Failed to register card\n");
1519 return ret;
1520 }
1521
1522 return 0;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001523}
1524
Vinod Koulb0e26482011-01-13 22:48:02 +05301525static int soc_cleanup_card_resources(struct snd_soc_card *card)
1526{
Vinod Koulb0e26482011-01-13 22:48:02 +05301527 int i;
1528
1529 /* make sure any delayed work runs */
1530 for (i = 0; i < card->num_rtd; i++) {
1531 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
1532 flush_delayed_work_sync(&rtd->delayed_work);
1533 }
1534
1535 /* remove auxiliary devices */
1536 for (i = 0; i < card->num_aux_devs; i++)
1537 soc_remove_aux_dev(card, i);
1538
1539 /* remove and free each DAI */
Kuninori Morimoto0671fd82011-04-08 14:50:44 +09001540 soc_remove_dai_links(card);
Vinod Koulb0e26482011-01-13 22:48:02 +05301541
1542 soc_cleanup_card_debugfs(card);
1543
1544 /* remove the card */
1545 if (card->remove)
Mark Browne7361ec2011-01-26 14:17:20 +00001546 card->remove(card);
Vinod Koulb0e26482011-01-13 22:48:02 +05301547
Lars-Peter Clausen0aaae522011-04-30 19:45:47 +02001548 snd_soc_dapm_free(&card->dapm);
1549
Vinod Koulb0e26482011-01-13 22:48:02 +05301550 kfree(card->rtd);
1551 snd_card_free(card->snd_card);
1552 return 0;
1553
1554}
1555
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001556/* removes a socdev */
1557static int soc_remove(struct platform_device *pdev)
1558{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001559 struct snd_soc_card *card = platform_get_drvdata(pdev);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001560
Mark Brownc5af3a22008-11-28 13:29:45 +00001561 snd_soc_unregister_card(card);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001562 return 0;
1563}
1564
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001565int snd_soc_poweroff(struct device *dev)
Mark Brown51737472009-06-22 13:16:51 +01001566{
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001567 struct snd_soc_card *card = dev_get_drvdata(dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001568 int i;
Mark Brown51737472009-06-22 13:16:51 +01001569
1570 if (!card->instantiated)
Mark Brown416356f2009-06-30 19:05:15 +01001571 return 0;
Mark Brown51737472009-06-22 13:16:51 +01001572
1573 /* Flush out pmdown_time work - we actually do want to run it
1574 * now, we're shutting down so no imminent restart. */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001575 for (i = 0; i < card->num_rtd; i++) {
1576 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
Tejun Heo5b84ba22010-12-11 17:51:26 +01001577 flush_delayed_work_sync(&rtd->delayed_work);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001578 }
Mark Brown51737472009-06-22 13:16:51 +01001579
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001580 snd_soc_dapm_shutdown(card);
Mark Brown416356f2009-06-30 19:05:15 +01001581
1582 return 0;
Mark Brown51737472009-06-22 13:16:51 +01001583}
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001584EXPORT_SYMBOL_GPL(snd_soc_poweroff);
Mark Brown51737472009-06-22 13:16:51 +01001585
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001586const struct dev_pm_ops snd_soc_pm_ops = {
1587 .suspend = snd_soc_suspend,
1588 .resume = snd_soc_resume,
1589 .poweroff = snd_soc_poweroff,
Mark Brown416356f2009-06-30 19:05:15 +01001590};
Stephen Warrendeb26072011-04-05 19:35:30 -06001591EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
Mark Brown416356f2009-06-30 19:05:15 +01001592
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001593/* ASoC platform driver */
1594static struct platform_driver soc_driver = {
1595 .driver = {
1596 .name = "soc-audio",
Kay Sievers8b45a202008-04-14 13:33:36 +02001597 .owner = THIS_MODULE,
Mark Brown6f8ab4a2011-01-26 14:59:27 +00001598 .pm = &snd_soc_pm_ops,
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001599 },
1600 .probe = soc_probe,
1601 .remove = soc_remove,
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001602};
1603
Mark Brown096e49d2009-07-05 15:12:22 +01001604/**
1605 * snd_soc_codec_volatile_register: Report if a register is volatile.
1606 *
1607 * @codec: CODEC to query.
1608 * @reg: Register to query.
1609 *
1610 * Boolean function indiciating if a CODEC register is volatile.
1611 */
Mark Brown181e0552011-01-24 14:05:25 +00001612int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1613 unsigned int reg)
Mark Brown096e49d2009-07-05 15:12:22 +01001614{
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00001615 if (codec->volatile_register)
1616 return codec->volatile_register(codec, reg);
Mark Brown096e49d2009-07-05 15:12:22 +01001617 else
1618 return 0;
1619}
1620EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1621
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001622/**
Dimitris Papastamos239c9702011-03-24 13:45:18 +00001623 * snd_soc_codec_readable_register: Report if a register is readable.
1624 *
1625 * @codec: CODEC to query.
1626 * @reg: Register to query.
1627 *
1628 * Boolean function indicating if a CODEC register is readable.
1629 */
1630int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
1631 unsigned int reg)
1632{
1633 if (codec->readable_register)
1634 return codec->readable_register(codec, reg);
1635 else
1636 return 0;
1637}
1638EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
1639
1640/**
1641 * snd_soc_codec_writable_register: Report if a register is writable.
1642 *
1643 * @codec: CODEC to query.
1644 * @reg: Register to query.
1645 *
1646 * Boolean function indicating if a CODEC register is writable.
1647 */
1648int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
1649 unsigned int reg)
1650{
1651 if (codec->writable_register)
1652 return codec->writable_register(codec, reg);
1653 else
1654 return 0;
1655}
1656EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
1657
Liam Girdwoodf1442bc2011-07-04 11:10:15 +01001658int snd_soc_platform_read(struct snd_soc_platform *platform,
1659 unsigned int reg)
1660{
1661 unsigned int ret;
1662
1663 if (!platform->driver->read) {
1664 dev_err(platform->dev, "platform has no read back\n");
1665 return -1;
1666 }
1667
1668 ret = platform->driver->read(platform, reg);
1669 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
Liam Girdwooda82ce2a2011-07-04 22:10:50 +01001670 trace_snd_soc_preg_read(platform, reg, ret);
Liam Girdwoodf1442bc2011-07-04 11:10:15 +01001671
1672 return ret;
1673}
1674EXPORT_SYMBOL_GPL(snd_soc_platform_read);
1675
1676int snd_soc_platform_write(struct snd_soc_platform *platform,
1677 unsigned int reg, unsigned int val)
1678{
1679 if (!platform->driver->write) {
1680 dev_err(platform->dev, "platform has no write back\n");
1681 return -1;
1682 }
1683
1684 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
Liam Girdwooda82ce2a2011-07-04 22:10:50 +01001685 trace_snd_soc_preg_write(platform, reg, val);
Liam Girdwoodf1442bc2011-07-04 11:10:15 +01001686 return platform->driver->write(platform, reg, val);
1687}
1688EXPORT_SYMBOL_GPL(snd_soc_platform_write);
1689
Dimitris Papastamos239c9702011-03-24 13:45:18 +00001690/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001691 * snd_soc_new_ac97_codec - initailise AC97 device
1692 * @codec: audio codec
1693 * @ops: AC97 bus operations
1694 * @num: AC97 codec number
1695 *
1696 * Initialises AC97 codec resources for use by ad-hoc devices only.
1697 */
1698int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
1699 struct snd_ac97_bus_ops *ops, int num)
1700{
1701 mutex_lock(&codec->mutex);
1702
1703 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
1704 if (codec->ac97 == NULL) {
1705 mutex_unlock(&codec->mutex);
1706 return -ENOMEM;
1707 }
1708
1709 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
1710 if (codec->ac97->bus == NULL) {
1711 kfree(codec->ac97);
1712 codec->ac97 = NULL;
1713 mutex_unlock(&codec->mutex);
1714 return -ENOMEM;
1715 }
1716
1717 codec->ac97->bus->ops = ops;
1718 codec->ac97->num = num;
Mika Westerberg0562f782010-10-13 11:30:32 +03001719
1720 /*
1721 * Mark the AC97 device to be created by us. This way we ensure that the
1722 * device will be registered with the device subsystem later on.
1723 */
1724 codec->ac97_created = 1;
1725
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001726 mutex_unlock(&codec->mutex);
1727 return 0;
1728}
1729EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
1730
1731/**
1732 * snd_soc_free_ac97_codec - free AC97 codec device
1733 * @codec: audio codec
1734 *
1735 * Frees AC97 codec device resources.
1736 */
1737void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
1738{
1739 mutex_lock(&codec->mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001740#ifdef CONFIG_SND_SOC_AC97_BUS
1741 soc_unregister_ac97_dai_link(codec);
1742#endif
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001743 kfree(codec->ac97->bus);
1744 kfree(codec->ac97);
1745 codec->ac97 = NULL;
Mika Westerberg0562f782010-10-13 11:30:32 +03001746 codec->ac97_created = 0;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001747 mutex_unlock(&codec->mutex);
1748}
1749EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
1750
Mark Brownc3753702010-11-01 15:41:57 -04001751unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
1752{
1753 unsigned int ret;
1754
Mark Brownc3acec22010-12-02 16:15:29 +00001755 ret = codec->read(codec, reg);
Mark Brownc3753702010-11-01 15:41:57 -04001756 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
Mark Browna8b1d342010-11-03 18:05:58 -04001757 trace_snd_soc_reg_read(codec, reg, ret);
Mark Brownc3753702010-11-01 15:41:57 -04001758
1759 return ret;
1760}
1761EXPORT_SYMBOL_GPL(snd_soc_read);
1762
1763unsigned int snd_soc_write(struct snd_soc_codec *codec,
1764 unsigned int reg, unsigned int val)
1765{
1766 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
Mark Browna8b1d342010-11-03 18:05:58 -04001767 trace_snd_soc_reg_write(codec, reg, val);
Mark Brownc3acec22010-12-02 16:15:29 +00001768 return codec->write(codec, reg, val);
Mark Brownc3753702010-11-01 15:41:57 -04001769}
1770EXPORT_SYMBOL_GPL(snd_soc_write);
1771
Dimitris Papastamos5fb609d2011-03-22 10:37:03 +00001772unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
1773 unsigned int reg, const void *data, size_t len)
1774{
1775 return codec->bulk_write_raw(codec, reg, data, len);
1776}
1777EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw);
1778
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001779/**
1780 * snd_soc_update_bits - update codec register bits
1781 * @codec: audio codec
1782 * @reg: codec register
1783 * @mask: register mask
1784 * @value: new value
1785 *
1786 * Writes new register value.
1787 *
Timur Tabi180c3292011-01-10 15:58:13 -06001788 * Returns 1 for change, 0 for no change, or negative error code.
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001789 */
1790int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001791 unsigned int mask, unsigned int value)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001792{
1793 int change;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001794 unsigned int old, new;
Timur Tabi180c3292011-01-10 15:58:13 -06001795 int ret;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001796
Timur Tabi180c3292011-01-10 15:58:13 -06001797 ret = snd_soc_read(codec, reg);
1798 if (ret < 0)
1799 return ret;
1800
1801 old = ret;
Mark Brown78bf3c92011-06-03 17:09:14 +01001802 new = (old & ~mask) | (value & mask);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001803 change = old != new;
Timur Tabi180c3292011-01-10 15:58:13 -06001804 if (change) {
1805 ret = snd_soc_write(codec, reg, new);
1806 if (ret < 0)
1807 return ret;
1808 }
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001809
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001810 return change;
1811}
1812EXPORT_SYMBOL_GPL(snd_soc_update_bits);
1813
1814/**
Eero Nurkkala6c508c62009-10-30 13:34:03 +02001815 * snd_soc_update_bits_locked - update codec register bits
1816 * @codec: audio codec
1817 * @reg: codec register
1818 * @mask: register mask
1819 * @value: new value
1820 *
1821 * Writes new register value, and takes the codec mutex.
1822 *
1823 * Returns 1 for change else 0.
1824 */
Mark Browndd1b3d52009-12-04 14:22:03 +00001825int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
1826 unsigned short reg, unsigned int mask,
1827 unsigned int value)
Eero Nurkkala6c508c62009-10-30 13:34:03 +02001828{
1829 int change;
1830
1831 mutex_lock(&codec->mutex);
1832 change = snd_soc_update_bits(codec, reg, mask, value);
1833 mutex_unlock(&codec->mutex);
1834
1835 return change;
1836}
Mark Browndd1b3d52009-12-04 14:22:03 +00001837EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
Eero Nurkkala6c508c62009-10-30 13:34:03 +02001838
1839/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001840 * snd_soc_test_bits - test register for change
1841 * @codec: audio codec
1842 * @reg: codec register
1843 * @mask: register mask
1844 * @value: new value
1845 *
1846 * Tests a register with a new value and checks if the new value is
1847 * different from the old value.
1848 *
1849 * Returns 1 for change else 0.
1850 */
1851int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001852 unsigned int mask, unsigned int value)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001853{
1854 int change;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03001855 unsigned int old, new;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001856
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001857 old = snd_soc_read(codec, reg);
1858 new = (old & ~mask) | value;
1859 change = old != new;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001860
1861 return change;
1862}
1863EXPORT_SYMBOL_GPL(snd_soc_test_bits);
1864
1865/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001866 * snd_soc_set_runtime_hwparams - set the runtime hardware parameters
1867 * @substream: the pcm substream
1868 * @hw: the hardware parameters
1869 *
1870 * Sets the substream runtime hardware parameters.
1871 */
1872int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
1873 const struct snd_pcm_hardware *hw)
1874{
1875 struct snd_pcm_runtime *runtime = substream->runtime;
1876 runtime->hw.info = hw->info;
1877 runtime->hw.formats = hw->formats;
1878 runtime->hw.period_bytes_min = hw->period_bytes_min;
1879 runtime->hw.period_bytes_max = hw->period_bytes_max;
1880 runtime->hw.periods_min = hw->periods_min;
1881 runtime->hw.periods_max = hw->periods_max;
1882 runtime->hw.buffer_bytes_max = hw->buffer_bytes_max;
1883 runtime->hw.fifo_size = hw->fifo_size;
1884 return 0;
1885}
1886EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams);
1887
1888/**
1889 * snd_soc_cnew - create new control
1890 * @_template: control template
1891 * @data: control private data
Mark Brownac11a2b2009-01-01 12:18:17 +00001892 * @long_name: control long name
Mark Brownefb7ac32011-03-08 17:23:24 +00001893 * @prefix: control name prefix
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001894 *
1895 * Create a new mixer control from a template control.
1896 *
1897 * Returns 0 for success, else error.
1898 */
1899struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
Mark Brownefb7ac32011-03-08 17:23:24 +00001900 void *data, char *long_name,
1901 const char *prefix)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001902{
1903 struct snd_kcontrol_new template;
Mark Brownefb7ac32011-03-08 17:23:24 +00001904 struct snd_kcontrol *kcontrol;
1905 char *name = NULL;
1906 int name_len;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001907
1908 memcpy(&template, _template, sizeof(template));
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001909 template.index = 0;
1910
Mark Brownefb7ac32011-03-08 17:23:24 +00001911 if (!long_name)
1912 long_name = template.name;
1913
1914 if (prefix) {
1915 name_len = strlen(long_name) + strlen(prefix) + 2;
Axel Lin57cf9d42011-08-20 11:03:44 +08001916 name = kmalloc(name_len, GFP_KERNEL);
Mark Brownefb7ac32011-03-08 17:23:24 +00001917 if (!name)
1918 return NULL;
1919
1920 snprintf(name, name_len, "%s %s", prefix, long_name);
1921
1922 template.name = name;
1923 } else {
1924 template.name = long_name;
1925 }
1926
1927 kcontrol = snd_ctl_new1(&template, data);
1928
1929 kfree(name);
1930
1931 return kcontrol;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001932}
1933EXPORT_SYMBOL_GPL(snd_soc_cnew);
1934
1935/**
Ian Molton3e8e1952009-01-09 00:23:21 +00001936 * snd_soc_add_controls - add an array of controls to a codec.
1937 * Convienience function to add a list of controls. Many codecs were
1938 * duplicating this code.
1939 *
1940 * @codec: codec to add controls to
1941 * @controls: array of controls to add
1942 * @num_controls: number of elements in the array
1943 *
1944 * Return 0 for success, else error.
1945 */
1946int snd_soc_add_controls(struct snd_soc_codec *codec,
1947 const struct snd_kcontrol_new *controls, int num_controls)
1948{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00001949 struct snd_card *card = codec->card->snd_card;
Ian Molton3e8e1952009-01-09 00:23:21 +00001950 int err, i;
1951
1952 for (i = 0; i < num_controls; i++) {
1953 const struct snd_kcontrol_new *control = &controls[i];
Mark Brownefb7ac32011-03-08 17:23:24 +00001954 err = snd_ctl_add(card, snd_soc_cnew(control, codec,
1955 control->name,
1956 codec->name_prefix));
Ian Molton3e8e1952009-01-09 00:23:21 +00001957 if (err < 0) {
Mark Brown082100d2010-09-20 19:03:28 +01001958 dev_err(codec->dev, "%s: Failed to add %s: %d\n",
Mark Brownefb7ac32011-03-08 17:23:24 +00001959 codec->name, control->name, err);
Ian Molton3e8e1952009-01-09 00:23:21 +00001960 return err;
1961 }
1962 }
1963
1964 return 0;
1965}
1966EXPORT_SYMBOL_GPL(snd_soc_add_controls);
1967
1968/**
Liam Girdwooda491a5c2011-07-04 22:10:51 +01001969 * snd_soc_add_platform_controls - add an array of controls to a platform.
1970 * Convienience function to add a list of controls.
1971 *
1972 * @platform: platform to add controls to
1973 * @controls: array of controls to add
1974 * @num_controls: number of elements in the array
1975 *
1976 * Return 0 for success, else error.
1977 */
1978int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
1979 const struct snd_kcontrol_new *controls, int num_controls)
1980{
1981 struct snd_card *card = platform->card->snd_card;
1982 int err, i;
1983
1984 for (i = 0; i < num_controls; i++) {
1985 const struct snd_kcontrol_new *control = &controls[i];
1986 err = snd_ctl_add(card, snd_soc_cnew(control, platform,
1987 control->name, NULL));
1988 if (err < 0) {
1989 dev_err(platform->dev, "Failed to add %s %d\n",control->name, err);
1990 return err;
1991 }
1992 }
1993
1994 return 0;
1995}
1996EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
1997
1998/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02001999 * snd_soc_info_enum_double - enumerated double mixer info callback
2000 * @kcontrol: mixer control
2001 * @uinfo: control element information
2002 *
2003 * Callback to provide information about a double enumerated
2004 * mixer control.
2005 *
2006 * Returns 0 for success.
2007 */
2008int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2009 struct snd_ctl_elem_info *uinfo)
2010{
2011 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2012
2013 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2014 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002015 uinfo->value.enumerated.items = e->max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002016
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002017 if (uinfo->value.enumerated.item > e->max - 1)
2018 uinfo->value.enumerated.item = e->max - 1;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002019 strcpy(uinfo->value.enumerated.name,
2020 e->texts[uinfo->value.enumerated.item]);
2021 return 0;
2022}
2023EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2024
2025/**
2026 * snd_soc_get_enum_double - enumerated double mixer get callback
2027 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002028 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002029 *
2030 * Callback to get the value of a double enumerated mixer.
2031 *
2032 * Returns 0 for success.
2033 */
2034int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2035 struct snd_ctl_elem_value *ucontrol)
2036{
2037 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2038 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002039 unsigned int val, bitmask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002040
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002041 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002042 ;
2043 val = snd_soc_read(codec, e->reg);
Mark Brown3ff3f642008-05-19 12:32:25 +02002044 ucontrol->value.enumerated.item[0]
2045 = (val >> e->shift_l) & (bitmask - 1);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002046 if (e->shift_l != e->shift_r)
2047 ucontrol->value.enumerated.item[1] =
2048 (val >> e->shift_r) & (bitmask - 1);
2049
2050 return 0;
2051}
2052EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2053
2054/**
2055 * snd_soc_put_enum_double - enumerated double mixer put callback
2056 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002057 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002058 *
2059 * Callback to set the value of a double enumerated mixer.
2060 *
2061 * Returns 0 for success.
2062 */
2063int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2064 struct snd_ctl_elem_value *ucontrol)
2065{
2066 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2067 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002068 unsigned int val;
2069 unsigned int mask, bitmask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002070
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002071 for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002072 ;
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002073 if (ucontrol->value.enumerated.item[0] > e->max - 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002074 return -EINVAL;
2075 val = ucontrol->value.enumerated.item[0] << e->shift_l;
2076 mask = (bitmask - 1) << e->shift_l;
2077 if (e->shift_l != e->shift_r) {
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002078 if (ucontrol->value.enumerated.item[1] > e->max - 1)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002079 return -EINVAL;
2080 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
2081 mask |= (bitmask - 1) << e->shift_r;
2082 }
2083
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002084 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002085}
2086EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2087
2088/**
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002089 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2090 * @kcontrol: mixer control
2091 * @ucontrol: control element information
2092 *
2093 * Callback to get the value of a double semi enumerated mixer.
2094 *
2095 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2096 * used for handling bitfield coded enumeration for example.
2097 *
2098 * Returns 0 for success.
2099 */
2100int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2101 struct snd_ctl_elem_value *ucontrol)
2102{
2103 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Peter Ujfalusi74155552009-01-08 13:34:29 +02002104 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002105 unsigned int reg_val, val, mux;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002106
2107 reg_val = snd_soc_read(codec, e->reg);
2108 val = (reg_val >> e->shift_l) & e->mask;
2109 for (mux = 0; mux < e->max; mux++) {
2110 if (val == e->values[mux])
2111 break;
2112 }
2113 ucontrol->value.enumerated.item[0] = mux;
2114 if (e->shift_l != e->shift_r) {
2115 val = (reg_val >> e->shift_r) & e->mask;
2116 for (mux = 0; mux < e->max; mux++) {
2117 if (val == e->values[mux])
2118 break;
2119 }
2120 ucontrol->value.enumerated.item[1] = mux;
2121 }
2122
2123 return 0;
2124}
2125EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2126
2127/**
2128 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2129 * @kcontrol: mixer control
2130 * @ucontrol: control element information
2131 *
2132 * Callback to set the value of a double semi enumerated mixer.
2133 *
2134 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2135 * used for handling bitfield coded enumeration for example.
2136 *
2137 * Returns 0 for success.
2138 */
2139int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2140 struct snd_ctl_elem_value *ucontrol)
2141{
2142 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Peter Ujfalusi74155552009-01-08 13:34:29 +02002143 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002144 unsigned int val;
2145 unsigned int mask;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002146
2147 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2148 return -EINVAL;
2149 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2150 mask = e->mask << e->shift_l;
2151 if (e->shift_l != e->shift_r) {
2152 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2153 return -EINVAL;
2154 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2155 mask |= e->mask << e->shift_r;
2156 }
2157
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002158 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002159}
2160EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2161
2162/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002163 * snd_soc_info_enum_ext - external enumerated single mixer info callback
2164 * @kcontrol: mixer control
2165 * @uinfo: control element information
2166 *
2167 * Callback to provide information about an external enumerated
2168 * single mixer.
2169 *
2170 * Returns 0 for success.
2171 */
2172int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
2173 struct snd_ctl_elem_info *uinfo)
2174{
2175 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2176
2177 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2178 uinfo->count = 1;
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002179 uinfo->value.enumerated.items = e->max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002180
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002181 if (uinfo->value.enumerated.item > e->max - 1)
2182 uinfo->value.enumerated.item = e->max - 1;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002183 strcpy(uinfo->value.enumerated.name,
2184 e->texts[uinfo->value.enumerated.item]);
2185 return 0;
2186}
2187EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext);
2188
2189/**
2190 * snd_soc_info_volsw_ext - external single mixer info callback
2191 * @kcontrol: mixer control
2192 * @uinfo: control element information
2193 *
2194 * Callback to provide information about a single external mixer control.
2195 *
2196 * Returns 0 for success.
2197 */
2198int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
2199 struct snd_ctl_elem_info *uinfo)
2200{
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002201 int max = kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002202
Mark Brownfd5dfad2009-04-15 21:37:46 +01002203 if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002204 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2205 else
2206 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2207
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002208 uinfo->count = 1;
2209 uinfo->value.integer.min = 0;
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002210 uinfo->value.integer.max = max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002211 return 0;
2212}
2213EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
2214
2215/**
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002216 * snd_soc_info_volsw - single mixer info callback
2217 * @kcontrol: mixer control
2218 * @uinfo: control element information
2219 *
2220 * Callback to provide information about a single mixer control.
2221 *
2222 * Returns 0 for success.
2223 */
2224int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2225 struct snd_ctl_elem_info *uinfo)
2226{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002227 struct soc_mixer_control *mc =
2228 (struct soc_mixer_control *)kcontrol->private_value;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002229 int platform_max;
Mark Brown762b8df2008-10-30 12:37:08 +00002230 unsigned int shift = mc->shift;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002231 unsigned int rshift = mc->rshift;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002232
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002233 if (!mc->platform_max)
2234 mc->platform_max = mc->max;
2235 platform_max = mc->platform_max;
2236
2237 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002238 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2239 else
2240 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2241
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002242 uinfo->count = shift == rshift ? 1 : 2;
2243 uinfo->value.integer.min = 0;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002244 uinfo->value.integer.max = platform_max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002245 return 0;
2246}
2247EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2248
2249/**
2250 * snd_soc_get_volsw - single mixer get callback
2251 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002252 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002253 *
2254 * Callback to get the value of a single mixer control.
2255 *
2256 * Returns 0 for success.
2257 */
2258int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2259 struct snd_ctl_elem_value *ucontrol)
2260{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002261 struct soc_mixer_control *mc =
2262 (struct soc_mixer_control *)kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002263 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002264 unsigned int reg = mc->reg;
2265 unsigned int shift = mc->shift;
2266 unsigned int rshift = mc->rshift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002267 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002268 unsigned int mask = (1 << fls(max)) - 1;
2269 unsigned int invert = mc->invert;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002270
2271 ucontrol->value.integer.value[0] =
2272 (snd_soc_read(codec, reg) >> shift) & mask;
2273 if (shift != rshift)
2274 ucontrol->value.integer.value[1] =
2275 (snd_soc_read(codec, reg) >> rshift) & mask;
2276 if (invert) {
2277 ucontrol->value.integer.value[0] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002278 max - ucontrol->value.integer.value[0];
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002279 if (shift != rshift)
2280 ucontrol->value.integer.value[1] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002281 max - ucontrol->value.integer.value[1];
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002282 }
2283
2284 return 0;
2285}
2286EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2287
2288/**
2289 * snd_soc_put_volsw - single mixer put callback
2290 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002291 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002292 *
2293 * Callback to set the value of a single mixer control.
2294 *
2295 * Returns 0 for success.
2296 */
2297int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2298 struct snd_ctl_elem_value *ucontrol)
2299{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002300 struct soc_mixer_control *mc =
2301 (struct soc_mixer_control *)kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002302 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002303 unsigned int reg = mc->reg;
2304 unsigned int shift = mc->shift;
2305 unsigned int rshift = mc->rshift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002306 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002307 unsigned int mask = (1 << fls(max)) - 1;
2308 unsigned int invert = mc->invert;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002309 unsigned int val, val2, val_mask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002310
2311 val = (ucontrol->value.integer.value[0] & mask);
2312 if (invert)
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002313 val = max - val;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002314 val_mask = mask << shift;
2315 val = val << shift;
2316 if (shift != rshift) {
2317 val2 = (ucontrol->value.integer.value[1] & mask);
2318 if (invert)
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002319 val2 = max - val2;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002320 val_mask |= mask << rshift;
2321 val |= val2 << rshift;
2322 }
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002323 return snd_soc_update_bits_locked(codec, reg, val_mask, val);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002324}
2325EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
2326
2327/**
2328 * snd_soc_info_volsw_2r - double mixer info callback
2329 * @kcontrol: mixer control
2330 * @uinfo: control element information
2331 *
2332 * Callback to provide information about a double mixer control that
2333 * spans 2 codec registers.
2334 *
2335 * Returns 0 for success.
2336 */
2337int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
2338 struct snd_ctl_elem_info *uinfo)
2339{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002340 struct soc_mixer_control *mc =
2341 (struct soc_mixer_control *)kcontrol->private_value;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002342 int platform_max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002343
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002344 if (!mc->platform_max)
2345 mc->platform_max = mc->max;
2346 platform_max = mc->platform_max;
2347
2348 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002349 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2350 else
2351 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2352
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002353 uinfo->count = 2;
2354 uinfo->value.integer.min = 0;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002355 uinfo->value.integer.max = platform_max;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002356 return 0;
2357}
2358EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r);
2359
2360/**
2361 * snd_soc_get_volsw_2r - double mixer get callback
2362 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002363 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002364 *
2365 * Callback to get the value of a double mixer control that spans 2 registers.
2366 *
2367 * Returns 0 for success.
2368 */
2369int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
2370 struct snd_ctl_elem_value *ucontrol)
2371{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002372 struct soc_mixer_control *mc =
2373 (struct soc_mixer_control *)kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002374 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002375 unsigned int reg = mc->reg;
2376 unsigned int reg2 = mc->rreg;
2377 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002378 int max = mc->max;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002379 unsigned int mask = (1 << fls(max)) - 1;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002380 unsigned int invert = mc->invert;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002381
2382 ucontrol->value.integer.value[0] =
2383 (snd_soc_read(codec, reg) >> shift) & mask;
2384 ucontrol->value.integer.value[1] =
2385 (snd_soc_read(codec, reg2) >> shift) & mask;
2386 if (invert) {
2387 ucontrol->value.integer.value[0] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002388 max - ucontrol->value.integer.value[0];
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002389 ucontrol->value.integer.value[1] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002390 max - ucontrol->value.integer.value[1];
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002391 }
2392
2393 return 0;
2394}
2395EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r);
2396
2397/**
2398 * snd_soc_put_volsw_2r - double mixer set callback
2399 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002400 * @ucontrol: control element information
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002401 *
2402 * Callback to set the value of a double mixer control that spans 2 registers.
2403 *
2404 * Returns 0 for success.
2405 */
2406int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
2407 struct snd_ctl_elem_value *ucontrol)
2408{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002409 struct soc_mixer_control *mc =
2410 (struct soc_mixer_control *)kcontrol->private_value;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002411 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002412 unsigned int reg = mc->reg;
2413 unsigned int reg2 = mc->rreg;
2414 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002415 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002416 unsigned int mask = (1 << fls(max)) - 1;
2417 unsigned int invert = mc->invert;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002418 int err;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002419 unsigned int val, val2, val_mask;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002420
2421 val_mask = mask << shift;
2422 val = (ucontrol->value.integer.value[0] & mask);
2423 val2 = (ucontrol->value.integer.value[1] & mask);
2424
2425 if (invert) {
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002426 val = max - val;
2427 val2 = max - val2;
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002428 }
2429
2430 val = val << shift;
2431 val2 = val2 << shift;
2432
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002433 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
Mark Brown3ff3f642008-05-19 12:32:25 +02002434 if (err < 0)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002435 return err;
2436
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002437 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02002438 return err;
2439}
2440EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r);
2441
Mark Browne13ac2e2008-05-28 17:58:05 +01002442/**
2443 * snd_soc_info_volsw_s8 - signed mixer info callback
2444 * @kcontrol: mixer control
2445 * @uinfo: control element information
2446 *
2447 * Callback to provide information about a signed mixer control.
2448 *
2449 * Returns 0 for success.
2450 */
2451int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2452 struct snd_ctl_elem_info *uinfo)
2453{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002454 struct soc_mixer_control *mc =
2455 (struct soc_mixer_control *)kcontrol->private_value;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002456 int platform_max;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002457 int min = mc->min;
Mark Browne13ac2e2008-05-28 17:58:05 +01002458
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002459 if (!mc->platform_max)
2460 mc->platform_max = mc->max;
2461 platform_max = mc->platform_max;
2462
Mark Browne13ac2e2008-05-28 17:58:05 +01002463 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2464 uinfo->count = 2;
2465 uinfo->value.integer.min = 0;
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002466 uinfo->value.integer.max = platform_max - min;
Mark Browne13ac2e2008-05-28 17:58:05 +01002467 return 0;
2468}
2469EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2470
2471/**
2472 * snd_soc_get_volsw_s8 - signed mixer get callback
2473 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002474 * @ucontrol: control element information
Mark Browne13ac2e2008-05-28 17:58:05 +01002475 *
2476 * Callback to get the value of a signed mixer control.
2477 *
2478 * Returns 0 for success.
2479 */
2480int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2481 struct snd_ctl_elem_value *ucontrol)
2482{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002483 struct soc_mixer_control *mc =
2484 (struct soc_mixer_control *)kcontrol->private_value;
Mark Browne13ac2e2008-05-28 17:58:05 +01002485 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002486 unsigned int reg = mc->reg;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002487 int min = mc->min;
Mark Browne13ac2e2008-05-28 17:58:05 +01002488 int val = snd_soc_read(codec, reg);
2489
2490 ucontrol->value.integer.value[0] =
2491 ((signed char)(val & 0xff))-min;
2492 ucontrol->value.integer.value[1] =
2493 ((signed char)((val >> 8) & 0xff))-min;
2494 return 0;
2495}
2496EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2497
2498/**
2499 * snd_soc_put_volsw_sgn - signed mixer put callback
2500 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002501 * @ucontrol: control element information
Mark Browne13ac2e2008-05-28 17:58:05 +01002502 *
2503 * Callback to set the value of a signed mixer control.
2504 *
2505 * Returns 0 for success.
2506 */
2507int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
2508 struct snd_ctl_elem_value *ucontrol)
2509{
Jon Smirl4eaa9812008-07-29 11:42:26 +01002510 struct soc_mixer_control *mc =
2511 (struct soc_mixer_control *)kcontrol->private_value;
Mark Browne13ac2e2008-05-28 17:58:05 +01002512 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002513 unsigned int reg = mc->reg;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002514 int min = mc->min;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002515 unsigned int val;
Mark Browne13ac2e2008-05-28 17:58:05 +01002516
2517 val = (ucontrol->value.integer.value[0]+min) & 0xff;
2518 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
2519
Eero Nurkkala6c508c62009-10-30 13:34:03 +02002520 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
Mark Browne13ac2e2008-05-28 17:58:05 +01002521}
2522EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
2523
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002524/**
Peter Ujfalusi637d3842010-05-07 14:05:49 +03002525 * snd_soc_limit_volume - Set new limit to an existing volume control.
2526 *
2527 * @codec: where to look for the control
2528 * @name: Name of the control
2529 * @max: new maximum limit
2530 *
2531 * Return 0 for success, else error.
2532 */
2533int snd_soc_limit_volume(struct snd_soc_codec *codec,
2534 const char *name, int max)
2535{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002536 struct snd_card *card = codec->card->snd_card;
Peter Ujfalusi637d3842010-05-07 14:05:49 +03002537 struct snd_kcontrol *kctl;
2538 struct soc_mixer_control *mc;
2539 int found = 0;
2540 int ret = -EINVAL;
2541
2542 /* Sanity check for name and max */
2543 if (unlikely(!name || max <= 0))
2544 return -EINVAL;
2545
2546 list_for_each_entry(kctl, &card->controls, list) {
2547 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
2548 found = 1;
2549 break;
2550 }
2551 }
2552 if (found) {
2553 mc = (struct soc_mixer_control *)kctl->private_value;
2554 if (max <= mc->max) {
Peter Ujfalusid11bb4a2010-05-10 14:39:24 +03002555 mc->platform_max = max;
Peter Ujfalusi637d3842010-05-07 14:05:49 +03002556 ret = 0;
2557 }
2558 }
2559 return ret;
2560}
2561EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
2562
2563/**
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002564 * snd_soc_info_volsw_2r_sx - double with tlv and variable data size
2565 * mixer info callback
2566 * @kcontrol: mixer control
2567 * @uinfo: control element information
2568 *
2569 * Returns 0 for success.
2570 */
2571int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
2572 struct snd_ctl_elem_info *uinfo)
2573{
2574 struct soc_mixer_control *mc =
2575 (struct soc_mixer_control *)kcontrol->private_value;
2576 int max = mc->max;
2577 int min = mc->min;
2578
2579 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2580 uinfo->count = 2;
2581 uinfo->value.integer.min = 0;
2582 uinfo->value.integer.max = max-min;
2583
2584 return 0;
2585}
2586EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx);
2587
2588/**
2589 * snd_soc_get_volsw_2r_sx - double with tlv and variable data size
2590 * mixer get callback
2591 * @kcontrol: mixer control
2592 * @uinfo: control element information
2593 *
2594 * Returns 0 for success.
2595 */
2596int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
2597 struct snd_ctl_elem_value *ucontrol)
2598{
2599 struct soc_mixer_control *mc =
2600 (struct soc_mixer_control *)kcontrol->private_value;
2601 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2602 unsigned int mask = (1<<mc->shift)-1;
2603 int min = mc->min;
2604 int val = snd_soc_read(codec, mc->reg) & mask;
2605 int valr = snd_soc_read(codec, mc->rreg) & mask;
2606
Stuart Longland20630c72010-06-18 12:56:10 +10002607 ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask;
2608 ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask;
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002609 return 0;
2610}
2611EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx);
2612
2613/**
2614 * snd_soc_put_volsw_2r_sx - double with tlv and variable data size
2615 * mixer put callback
2616 * @kcontrol: mixer control
2617 * @uinfo: control element information
2618 *
2619 * Returns 0 for success.
2620 */
2621int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
2622 struct snd_ctl_elem_value *ucontrol)
2623{
2624 struct soc_mixer_control *mc =
2625 (struct soc_mixer_control *)kcontrol->private_value;
2626 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2627 unsigned int mask = (1<<mc->shift)-1;
2628 int min = mc->min;
2629 int ret;
2630 unsigned int val, valr, oval, ovalr;
2631
2632 val = ((ucontrol->value.integer.value[0]+min) & 0xff);
2633 val &= mask;
2634 valr = ((ucontrol->value.integer.value[1]+min) & 0xff);
2635 valr &= mask;
2636
2637 oval = snd_soc_read(codec, mc->reg) & mask;
2638 ovalr = snd_soc_read(codec, mc->rreg) & mask;
2639
2640 ret = 0;
2641 if (oval != val) {
2642 ret = snd_soc_write(codec, mc->reg, val);
2643 if (ret < 0)
Mark Brownf1df5ae2010-06-15 15:14:31 +01002644 return ret;
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002645 }
2646 if (ovalr != valr) {
2647 ret = snd_soc_write(codec, mc->rreg, valr);
2648 if (ret < 0)
Mark Brownf1df5ae2010-06-15 15:14:31 +01002649 return ret;
apatard@mandriva.comb6f4bb32010-05-15 17:30:01 +02002650 }
2651
2652 return 0;
2653}
2654EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx);
2655
2656/**
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002657 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
2658 * @dai: DAI
2659 * @clk_id: DAI specific clock ID
2660 * @freq: new clock frequency in Hz
2661 * @dir: new clock direction - input/output.
2662 *
2663 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
2664 */
2665int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
2666 unsigned int freq, int dir)
2667{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002668 if (dai->driver && dai->driver->ops->set_sysclk)
2669 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
Mark Brownec4ee522011-03-07 20:58:11 +00002670 else if (dai->codec && dai->codec->driver->set_sysclk)
2671 return dai->codec->driver->set_sysclk(dai->codec, clk_id,
2672 freq, dir);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002673 else
2674 return -EINVAL;
2675}
2676EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
2677
2678/**
Mark Brownec4ee522011-03-07 20:58:11 +00002679 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
2680 * @codec: CODEC
2681 * @clk_id: DAI specific clock ID
2682 * @freq: new clock frequency in Hz
2683 * @dir: new clock direction - input/output.
2684 *
2685 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
2686 */
2687int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
2688 unsigned int freq, int dir)
2689{
2690 if (codec->driver->set_sysclk)
2691 return codec->driver->set_sysclk(codec, clk_id, freq, dir);
2692 else
2693 return -EINVAL;
2694}
2695EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
2696
2697/**
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002698 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
2699 * @dai: DAI
Mark Brownac11a2b2009-01-01 12:18:17 +00002700 * @div_id: DAI specific clock divider ID
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002701 * @div: new clock divisor.
2702 *
2703 * Configures the clock dividers. This is used to derive the best DAI bit and
2704 * frame clocks from the system or master clock. It's best to set the DAI bit
2705 * and frame clocks as low as possible to save system power.
2706 */
2707int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
2708 int div_id, int div)
2709{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002710 if (dai->driver && dai->driver->ops->set_clkdiv)
2711 return dai->driver->ops->set_clkdiv(dai, div_id, div);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002712 else
2713 return -EINVAL;
2714}
2715EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
2716
2717/**
2718 * snd_soc_dai_set_pll - configure DAI PLL.
2719 * @dai: DAI
2720 * @pll_id: DAI specific PLL ID
Mark Brown85488032009-09-05 18:52:16 +01002721 * @source: DAI specific source for the PLL
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002722 * @freq_in: PLL input clock frequency in Hz
2723 * @freq_out: requested PLL output clock frequency in Hz
2724 *
2725 * Configures and enables PLL to generate output clock based on input clock.
2726 */
Mark Brown85488032009-09-05 18:52:16 +01002727int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
2728 unsigned int freq_in, unsigned int freq_out)
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002729{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002730 if (dai->driver && dai->driver->ops->set_pll)
2731 return dai->driver->ops->set_pll(dai, pll_id, source,
Mark Brown85488032009-09-05 18:52:16 +01002732 freq_in, freq_out);
Mark Brownec4ee522011-03-07 20:58:11 +00002733 else if (dai->codec && dai->codec->driver->set_pll)
2734 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
2735 freq_in, freq_out);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002736 else
2737 return -EINVAL;
2738}
2739EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
2740
Mark Brownec4ee522011-03-07 20:58:11 +00002741/*
2742 * snd_soc_codec_set_pll - configure codec PLL.
2743 * @codec: CODEC
2744 * @pll_id: DAI specific PLL ID
2745 * @source: DAI specific source for the PLL
2746 * @freq_in: PLL input clock frequency in Hz
2747 * @freq_out: requested PLL output clock frequency in Hz
2748 *
2749 * Configures and enables PLL to generate output clock based on input clock.
2750 */
2751int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
2752 unsigned int freq_in, unsigned int freq_out)
2753{
2754 if (codec->driver->set_pll)
2755 return codec->driver->set_pll(codec, pll_id, source,
2756 freq_in, freq_out);
2757 else
2758 return -EINVAL;
2759}
2760EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
2761
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002762/**
2763 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
2764 * @dai: DAI
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002765 * @fmt: SND_SOC_DAIFMT_ format value.
2766 *
2767 * Configures the DAI hardware format and clocking.
2768 */
2769int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
2770{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002771 if (dai->driver && dai->driver->ops->set_fmt)
2772 return dai->driver->ops->set_fmt(dai, fmt);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002773 else
2774 return -EINVAL;
2775}
2776EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
2777
2778/**
2779 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
2780 * @dai: DAI
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002781 * @tx_mask: bitmask representing active TX slots.
2782 * @rx_mask: bitmask representing active RX slots.
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002783 * @slots: Number of slots in use.
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002784 * @slot_width: Width in bits for each slot.
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002785 *
2786 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
2787 * specific.
2788 */
2789int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002790 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002791{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002792 if (dai->driver && dai->driver->ops->set_tdm_slot)
2793 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
Daniel Ribeiroa5479e32009-06-15 21:44:31 -03002794 slots, slot_width);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002795 else
2796 return -EINVAL;
2797}
2798EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
2799
2800/**
Barry Song472df3c2009-09-12 01:16:29 +08002801 * snd_soc_dai_set_channel_map - configure DAI audio channel map
2802 * @dai: DAI
2803 * @tx_num: how many TX channels
2804 * @tx_slot: pointer to an array which imply the TX slot number channel
2805 * 0~num-1 uses
2806 * @rx_num: how many RX channels
2807 * @rx_slot: pointer to an array which imply the RX slot number channel
2808 * 0~num-1 uses
2809 *
2810 * configure the relationship between channel number and TDM slot number.
2811 */
2812int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
2813 unsigned int tx_num, unsigned int *tx_slot,
2814 unsigned int rx_num, unsigned int *rx_slot)
2815{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002816 if (dai->driver && dai->driver->ops->set_channel_map)
2817 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
Barry Song472df3c2009-09-12 01:16:29 +08002818 rx_num, rx_slot);
2819 else
2820 return -EINVAL;
2821}
2822EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
2823
2824/**
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002825 * snd_soc_dai_set_tristate - configure DAI system or master clock.
2826 * @dai: DAI
2827 * @tristate: tristate enable
2828 *
2829 * Tristates the DAI so that others can use it.
2830 */
2831int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
2832{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002833 if (dai->driver && dai->driver->ops->set_tristate)
2834 return dai->driver->ops->set_tristate(dai, tristate);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002835 else
2836 return -EINVAL;
2837}
2838EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
2839
2840/**
2841 * snd_soc_dai_digital_mute - configure DAI system or master clock.
2842 * @dai: DAI
2843 * @mute: mute enable
2844 *
2845 * Mutes the DAI DAC.
2846 */
2847int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
2848{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002849 if (dai->driver && dai->driver->ops->digital_mute)
2850 return dai->driver->ops->digital_mute(dai, mute);
Liam Girdwood8c6529d2008-07-08 13:19:13 +01002851 else
2852 return -EINVAL;
2853}
2854EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
2855
Mark Brownc5af3a22008-11-28 13:29:45 +00002856/**
2857 * snd_soc_register_card - Register a card with the ASoC core
2858 *
Mark Brownac11a2b2009-01-01 12:18:17 +00002859 * @card: Card to register
Mark Brownc5af3a22008-11-28 13:29:45 +00002860 *
Mark Brownc5af3a22008-11-28 13:29:45 +00002861 */
Vinod Koul70a7ca32011-01-14 19:22:48 +05302862int snd_soc_register_card(struct snd_soc_card *card)
Mark Brownc5af3a22008-11-28 13:29:45 +00002863{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002864 int i;
2865
Mark Brownc5af3a22008-11-28 13:29:45 +00002866 if (!card->name || !card->dev)
2867 return -EINVAL;
2868
Mark Browned77cc12011-05-03 18:25:34 +01002869 dev_set_drvdata(card->dev, card);
2870
Stephen Warren111c6412011-01-28 14:26:35 -07002871 snd_soc_initialize_card_lists(card);
2872
Vinod Koul150dd2f2011-01-13 22:48:32 +05302873 soc_init_card_debugfs(card);
2874
Jarkko Nikula2eea3922010-11-25 17:47:38 +02002875 card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) *
2876 (card->num_links + card->num_aux_devs),
2877 GFP_KERNEL);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002878 if (card->rtd == NULL)
2879 return -ENOMEM;
Jarkko Nikula2eea3922010-11-25 17:47:38 +02002880 card->rtd_aux = &card->rtd[card->num_links];
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002881
2882 for (i = 0; i < card->num_links; i++)
2883 card->rtd[i].dai_link = &card->dai_link[i];
2884
Mark Brownc5af3a22008-11-28 13:29:45 +00002885 INIT_LIST_HEAD(&card->list);
2886 card->instantiated = 0;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002887 mutex_init(&card->mutex);
Mark Brownc5af3a22008-11-28 13:29:45 +00002888
2889 mutex_lock(&client_mutex);
2890 list_add(&card->list, &card_list);
Mark Brown435c5e22008-12-04 15:32:53 +00002891 snd_soc_instantiate_cards();
Mark Brownc5af3a22008-11-28 13:29:45 +00002892 mutex_unlock(&client_mutex);
2893
2894 dev_dbg(card->dev, "Registered card '%s'\n", card->name);
2895
2896 return 0;
2897}
Vinod Koul70a7ca32011-01-14 19:22:48 +05302898EXPORT_SYMBOL_GPL(snd_soc_register_card);
Mark Brownc5af3a22008-11-28 13:29:45 +00002899
2900/**
2901 * snd_soc_unregister_card - Unregister a card with the ASoC core
2902 *
Mark Brownac11a2b2009-01-01 12:18:17 +00002903 * @card: Card to unregister
Mark Brownc5af3a22008-11-28 13:29:45 +00002904 *
Mark Brownc5af3a22008-11-28 13:29:45 +00002905 */
Vinod Koul70a7ca32011-01-14 19:22:48 +05302906int snd_soc_unregister_card(struct snd_soc_card *card)
Mark Brownc5af3a22008-11-28 13:29:45 +00002907{
Vinod Koulb0e26482011-01-13 22:48:02 +05302908 if (card->instantiated)
2909 soc_cleanup_card_resources(card);
Mark Brownc5af3a22008-11-28 13:29:45 +00002910 mutex_lock(&client_mutex);
2911 list_del(&card->list);
2912 mutex_unlock(&client_mutex);
Mark Brownc5af3a22008-11-28 13:29:45 +00002913 dev_dbg(card->dev, "Unregistered card '%s'\n", card->name);
2914
2915 return 0;
2916}
Vinod Koul70a7ca32011-01-14 19:22:48 +05302917EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
Mark Brownc5af3a22008-11-28 13:29:45 +00002918
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002919/*
2920 * Simplify DAI link configuration by removing ".-1" from device names
2921 * and sanitizing names.
2922 */
Dimitris Papastamos0b9a2142010-12-06 15:49:20 +00002923static char *fmt_single_name(struct device *dev, int *id)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002924{
2925 char *found, name[NAME_SIZE];
2926 int id1, id2;
2927
2928 if (dev_name(dev) == NULL)
2929 return NULL;
2930
Dimitris Papastamos58818a72010-12-06 15:42:17 +00002931 strlcpy(name, dev_name(dev), NAME_SIZE);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002932
2933 /* are we a "%s.%d" name (platform and SPI components) */
2934 found = strstr(name, dev->driver->name);
2935 if (found) {
2936 /* get ID */
2937 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
2938
2939 /* discard ID from name if ID == -1 */
2940 if (*id == -1)
2941 found[strlen(dev->driver->name)] = '\0';
2942 }
2943
2944 } else {
2945 /* I2C component devices are named "bus-addr" */
2946 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
2947 char tmp[NAME_SIZE];
2948
2949 /* create unique ID number from I2C addr and bus */
Jarkko Nikula05899442010-10-19 11:10:45 +03002950 *id = ((id1 & 0xffff) << 16) + id2;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002951
2952 /* sanitize component name for DAI link creation */
2953 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
Dimitris Papastamos58818a72010-12-06 15:42:17 +00002954 strlcpy(name, tmp, NAME_SIZE);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002955 } else
2956 *id = 0;
2957 }
2958
2959 return kstrdup(name, GFP_KERNEL);
2960}
2961
2962/*
2963 * Simplify DAI link naming for single devices with multiple DAIs by removing
2964 * any ".-1" and using the DAI name (instead of device name).
2965 */
2966static inline char *fmt_multiple_name(struct device *dev,
2967 struct snd_soc_dai_driver *dai_drv)
2968{
2969 if (dai_drv->name == NULL) {
2970 printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n",
2971 dev_name(dev));
2972 return NULL;
2973 }
2974
2975 return kstrdup(dai_drv->name, GFP_KERNEL);
2976}
2977
Mark Brown91151712008-11-30 23:31:24 +00002978/**
2979 * snd_soc_register_dai - Register a DAI with the ASoC core
2980 *
Mark Brownac11a2b2009-01-01 12:18:17 +00002981 * @dai: DAI to register
Mark Brown91151712008-11-30 23:31:24 +00002982 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002983int snd_soc_register_dai(struct device *dev,
2984 struct snd_soc_dai_driver *dai_drv)
Mark Brown91151712008-11-30 23:31:24 +00002985{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002986 struct snd_soc_dai *dai;
Mark Brown91151712008-11-30 23:31:24 +00002987
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002988 dev_dbg(dev, "dai register %s\n", dev_name(dev));
Mark Brown91151712008-11-30 23:31:24 +00002989
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002990 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
2991 if (dai == NULL)
Lu Guanquna7393622011-04-20 16:00:51 +08002992 return -ENOMEM;
Eric Miao6335d052009-03-03 09:41:00 +08002993
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002994 /* create DAI component name */
2995 dai->name = fmt_single_name(dev, &dai->id);
2996 if (dai->name == NULL) {
2997 kfree(dai);
2998 return -ENOMEM;
2999 }
3000
3001 dai->dev = dev;
3002 dai->driver = dai_drv;
3003 if (!dai->driver->ops)
3004 dai->driver->ops = &null_dai_ops;
Mark Brown91151712008-11-30 23:31:24 +00003005
3006 mutex_lock(&client_mutex);
3007 list_add(&dai->list, &dai_list);
Mark Brown435c5e22008-12-04 15:32:53 +00003008 snd_soc_instantiate_cards();
Mark Brown91151712008-11-30 23:31:24 +00003009 mutex_unlock(&client_mutex);
3010
3011 pr_debug("Registered DAI '%s'\n", dai->name);
3012
3013 return 0;
3014}
3015EXPORT_SYMBOL_GPL(snd_soc_register_dai);
3016
3017/**
3018 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3019 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003020 * @dai: DAI to unregister
Mark Brown91151712008-11-30 23:31:24 +00003021 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003022void snd_soc_unregister_dai(struct device *dev)
Mark Brown91151712008-11-30 23:31:24 +00003023{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003024 struct snd_soc_dai *dai;
3025
3026 list_for_each_entry(dai, &dai_list, list) {
3027 if (dev == dai->dev)
3028 goto found;
3029 }
3030 return;
3031
3032found:
Mark Brown91151712008-11-30 23:31:24 +00003033 mutex_lock(&client_mutex);
3034 list_del(&dai->list);
3035 mutex_unlock(&client_mutex);
3036
3037 pr_debug("Unregistered DAI '%s'\n", dai->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003038 kfree(dai->name);
3039 kfree(dai);
Mark Brown91151712008-11-30 23:31:24 +00003040}
3041EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
3042
3043/**
3044 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3045 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003046 * @dai: Array of DAIs to register
3047 * @count: Number of DAIs
Mark Brown91151712008-11-30 23:31:24 +00003048 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003049int snd_soc_register_dais(struct device *dev,
3050 struct snd_soc_dai_driver *dai_drv, size_t count)
Mark Brown91151712008-11-30 23:31:24 +00003051{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003052 struct snd_soc_dai *dai;
3053 int i, ret = 0;
3054
Liam Girdwood720ffa42010-08-18 00:30:30 +01003055 dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count);
Mark Brown91151712008-11-30 23:31:24 +00003056
3057 for (i = 0; i < count; i++) {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003058
3059 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
Axel Linc46e0072010-11-03 15:04:45 +08003060 if (dai == NULL) {
3061 ret = -ENOMEM;
3062 goto err;
3063 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003064
3065 /* create DAI component name */
3066 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3067 if (dai->name == NULL) {
3068 kfree(dai);
3069 ret = -EINVAL;
Mark Brown91151712008-11-30 23:31:24 +00003070 goto err;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003071 }
3072
3073 dai->dev = dev;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003074 dai->driver = &dai_drv[i];
Mark Brown0f9141c2010-10-12 15:43:21 +01003075 if (dai->driver->id)
3076 dai->id = dai->driver->id;
3077 else
3078 dai->id = i;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003079 if (!dai->driver->ops)
3080 dai->driver->ops = &null_dai_ops;
3081
3082 mutex_lock(&client_mutex);
3083 list_add(&dai->list, &dai_list);
3084 mutex_unlock(&client_mutex);
3085
3086 pr_debug("Registered DAI '%s'\n", dai->name);
Mark Brown91151712008-11-30 23:31:24 +00003087 }
3088
Axel Lin1dcb4f32010-12-06 16:48:03 +08003089 mutex_lock(&client_mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003090 snd_soc_instantiate_cards();
Axel Lin1dcb4f32010-12-06 16:48:03 +08003091 mutex_unlock(&client_mutex);
Mark Brown91151712008-11-30 23:31:24 +00003092 return 0;
3093
3094err:
3095 for (i--; i >= 0; i--)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003096 snd_soc_unregister_dai(dev);
Mark Brown91151712008-11-30 23:31:24 +00003097
3098 return ret;
3099}
3100EXPORT_SYMBOL_GPL(snd_soc_register_dais);
3101
3102/**
3103 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
3104 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003105 * @dai: Array of DAIs to unregister
3106 * @count: Number of DAIs
Mark Brown91151712008-11-30 23:31:24 +00003107 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003108void snd_soc_unregister_dais(struct device *dev, size_t count)
Mark Brown91151712008-11-30 23:31:24 +00003109{
3110 int i;
3111
3112 for (i = 0; i < count; i++)
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003113 snd_soc_unregister_dai(dev);
Mark Brown91151712008-11-30 23:31:24 +00003114}
3115EXPORT_SYMBOL_GPL(snd_soc_unregister_dais);
3116
Mark Brown12a48a8c2008-12-03 19:40:30 +00003117/**
3118 * snd_soc_register_platform - Register a platform with the ASoC core
3119 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003120 * @platform: platform to register
Mark Brown12a48a8c2008-12-03 19:40:30 +00003121 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003122int snd_soc_register_platform(struct device *dev,
3123 struct snd_soc_platform_driver *platform_drv)
Mark Brown12a48a8c2008-12-03 19:40:30 +00003124{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003125 struct snd_soc_platform *platform;
Mark Brown12a48a8c2008-12-03 19:40:30 +00003126
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003127 dev_dbg(dev, "platform register %s\n", dev_name(dev));
3128
3129 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
3130 if (platform == NULL)
Lu Guanquna7393622011-04-20 16:00:51 +08003131 return -ENOMEM;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003132
3133 /* create platform component name */
3134 platform->name = fmt_single_name(dev, &platform->id);
3135 if (platform->name == NULL) {
3136 kfree(platform);
3137 return -ENOMEM;
3138 }
3139
3140 platform->dev = dev;
3141 platform->driver = platform_drv;
Liam Girdwoodb7950642011-07-04 22:10:52 +01003142 platform->dapm.dev = dev;
3143 platform->dapm.platform = platform;
Mark Brown12a48a8c2008-12-03 19:40:30 +00003144
3145 mutex_lock(&client_mutex);
3146 list_add(&platform->list, &platform_list);
Mark Brown435c5e22008-12-04 15:32:53 +00003147 snd_soc_instantiate_cards();
Mark Brown12a48a8c2008-12-03 19:40:30 +00003148 mutex_unlock(&client_mutex);
3149
3150 pr_debug("Registered platform '%s'\n", platform->name);
3151
3152 return 0;
3153}
3154EXPORT_SYMBOL_GPL(snd_soc_register_platform);
3155
3156/**
3157 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
3158 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003159 * @platform: platform to unregister
Mark Brown12a48a8c2008-12-03 19:40:30 +00003160 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003161void snd_soc_unregister_platform(struct device *dev)
Mark Brown12a48a8c2008-12-03 19:40:30 +00003162{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003163 struct snd_soc_platform *platform;
3164
3165 list_for_each_entry(platform, &platform_list, list) {
3166 if (dev == platform->dev)
3167 goto found;
3168 }
3169 return;
3170
3171found:
Mark Brown12a48a8c2008-12-03 19:40:30 +00003172 mutex_lock(&client_mutex);
3173 list_del(&platform->list);
3174 mutex_unlock(&client_mutex);
3175
3176 pr_debug("Unregistered platform '%s'\n", platform->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003177 kfree(platform->name);
3178 kfree(platform);
Mark Brown12a48a8c2008-12-03 19:40:30 +00003179}
3180EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
3181
Mark Brown151ab222009-05-09 16:22:58 +01003182static u64 codec_format_map[] = {
3183 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
3184 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
3185 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
3186 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
3187 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
3188 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
3189 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3190 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
3191 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
3192 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
3193 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
3194 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
3195 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
3196 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
3197 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
3198 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
3199};
3200
3201/* Fix up the DAI formats for endianness: codecs don't actually see
3202 * the endianness of the data but we're using the CPU format
3203 * definitions which do need to include endianness so we ensure that
3204 * codec DAIs always have both big and little endian variants set.
3205 */
3206static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
3207{
3208 int i;
3209
3210 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
3211 if (stream->formats & codec_format_map[i])
3212 stream->formats |= codec_format_map[i];
3213}
3214
Mark Brown0d0cf002008-12-10 14:32:45 +00003215/**
3216 * snd_soc_register_codec - Register a codec with the ASoC core
3217 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003218 * @codec: codec to register
Mark Brown0d0cf002008-12-10 14:32:45 +00003219 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003220int snd_soc_register_codec(struct device *dev,
Mark Brown001ae4c2010-12-02 16:21:08 +00003221 const struct snd_soc_codec_driver *codec_drv,
3222 struct snd_soc_dai_driver *dai_drv,
3223 int num_dai)
Mark Brown0d0cf002008-12-10 14:32:45 +00003224{
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003225 size_t reg_size;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003226 struct snd_soc_codec *codec;
3227 int ret, i;
Mark Brown151ab222009-05-09 16:22:58 +01003228
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003229 dev_dbg(dev, "codec register %s\n", dev_name(dev));
Mark Brown0d0cf002008-12-10 14:32:45 +00003230
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003231 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
3232 if (codec == NULL)
3233 return -ENOMEM;
Mark Brown0d0cf002008-12-10 14:32:45 +00003234
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003235 /* create CODEC component name */
3236 codec->name = fmt_single_name(dev, &codec->id);
3237 if (codec->name == NULL) {
3238 kfree(codec);
3239 return -ENOMEM;
Mark Brown151ab222009-05-09 16:22:58 +01003240 }
3241
Dimitris Papastamos23bbce32010-12-02 14:53:01 +00003242 if (codec_drv->compress_type)
3243 codec->compress_type = codec_drv->compress_type;
3244 else
3245 codec->compress_type = SND_SOC_FLAT_COMPRESSION;
3246
Mark Brownc3acec22010-12-02 16:15:29 +00003247 codec->write = codec_drv->write;
3248 codec->read = codec_drv->read;
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00003249 codec->volatile_register = codec_drv->volatile_register;
3250 codec->readable_register = codec_drv->readable_register;
Dimitris Papastamos80204542011-03-24 13:45:17 +00003251 codec->writable_register = codec_drv->writable_register;
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003252 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
3253 codec->dapm.dev = dev;
3254 codec->dapm.codec = codec;
Mark Brown474b62d2011-01-18 16:14:44 +00003255 codec->dapm.seq_notifier = codec_drv->seq_notifier;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003256 codec->dev = dev;
3257 codec->driver = codec_drv;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003258 codec->num_dai = num_dai;
3259 mutex_init(&codec->mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003260
Dimitris Papastamos7a30a3d2010-11-11 10:04:57 +00003261 /* allocate CODEC register cache */
3262 if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003263 reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
Dimitris Papastamosaea170a2011-01-12 10:38:58 +00003264 codec->reg_size = reg_size;
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003265 /* it is necessary to make a copy of the default register cache
3266 * because in the case of using a compression type that requires
3267 * the default register cache to be marked as __devinitconst the
3268 * kernel might have freed the array by the time we initialize
3269 * the cache.
3270 */
Dimitris Papastamos2aa86322011-01-10 10:10:56 +00003271 if (codec_drv->reg_cache_default) {
3272 codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
3273 reg_size, GFP_KERNEL);
3274 if (!codec->reg_def_copy) {
3275 ret = -ENOMEM;
3276 goto fail;
3277 }
Dimitris Papastamos7a30a3d2010-11-11 10:04:57 +00003278 }
3279 }
3280
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00003281 if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
3282 if (!codec->volatile_register)
3283 codec->volatile_register = snd_soc_default_volatile_register;
3284 if (!codec->readable_register)
3285 codec->readable_register = snd_soc_default_readable_register;
Dimitris Papastamos80204542011-03-24 13:45:17 +00003286 if (!codec->writable_register)
3287 codec->writable_register = snd_soc_default_writable_register;
Dimitris Papastamos1500b7b2011-01-13 12:20:38 +00003288 }
3289
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003290 for (i = 0; i < num_dai; i++) {
3291 fixup_codec_formats(&dai_drv[i].playback);
3292 fixup_codec_formats(&dai_drv[i].capture);
3293 }
3294
Mark Brown26b01cc2010-08-18 20:20:55 +01003295 /* register any DAIs */
3296 if (num_dai) {
3297 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
3298 if (ret < 0)
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00003299 goto fail;
Mark Brown26b01cc2010-08-18 20:20:55 +01003300 }
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003301
Mark Brown0d0cf002008-12-10 14:32:45 +00003302 mutex_lock(&client_mutex);
3303 list_add(&codec->list, &codec_list);
3304 snd_soc_instantiate_cards();
3305 mutex_unlock(&client_mutex);
3306
3307 pr_debug("Registered codec '%s'\n", codec->name);
Mark Brown0d0cf002008-12-10 14:32:45 +00003308 return 0;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003309
Dimitris Papastamosfdf0f542010-12-02 16:11:06 +00003310fail:
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003311 kfree(codec->reg_def_copy);
3312 codec->reg_def_copy = NULL;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003313 kfree(codec->name);
3314 kfree(codec);
3315 return ret;
Mark Brown0d0cf002008-12-10 14:32:45 +00003316}
3317EXPORT_SYMBOL_GPL(snd_soc_register_codec);
3318
3319/**
3320 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
3321 *
Mark Brownac11a2b2009-01-01 12:18:17 +00003322 * @codec: codec to unregister
Mark Brown0d0cf002008-12-10 14:32:45 +00003323 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003324void snd_soc_unregister_codec(struct device *dev)
Mark Brown0d0cf002008-12-10 14:32:45 +00003325{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003326 struct snd_soc_codec *codec;
3327 int i;
3328
3329 list_for_each_entry(codec, &codec_list, list) {
3330 if (dev == codec->dev)
3331 goto found;
3332 }
3333 return;
3334
3335found:
Mark Brown26b01cc2010-08-18 20:20:55 +01003336 if (codec->num_dai)
3337 for (i = 0; i < codec->num_dai; i++)
3338 snd_soc_unregister_dai(dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003339
Mark Brown0d0cf002008-12-10 14:32:45 +00003340 mutex_lock(&client_mutex);
3341 list_del(&codec->list);
3342 mutex_unlock(&client_mutex);
3343
3344 pr_debug("Unregistered codec '%s'\n", codec->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003345
Dimitris Papastamos7a30a3d2010-11-11 10:04:57 +00003346 snd_soc_cache_exit(codec);
Dimitris Papastamos3335ddc2010-12-02 16:11:05 +00003347 kfree(codec->reg_def_copy);
Dimitris Papastamos1aafcd42010-10-21 13:19:45 +01003348 kfree(codec->name);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003349 kfree(codec);
Mark Brown0d0cf002008-12-10 14:32:45 +00003350}
3351EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
3352
Takashi Iwaic9b3a402008-12-10 07:47:22 +01003353static int __init snd_soc_init(void)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003354{
Mark Brown384c89e2008-12-03 17:34:03 +00003355#ifdef CONFIG_DEBUG_FS
Mark Brown8a9dab12011-01-10 22:25:21 +00003356 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
3357 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
Mark Brown384c89e2008-12-03 17:34:03 +00003358 printk(KERN_WARNING
3359 "ASoC: Failed to create debugfs directory\n");
Mark Brown8a9dab12011-01-10 22:25:21 +00003360 snd_soc_debugfs_root = NULL;
Mark Brown384c89e2008-12-03 17:34:03 +00003361 }
Mark Brownc3c5a192010-09-15 18:15:14 +01003362
Mark Brown8a9dab12011-01-10 22:25:21 +00003363 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
Mark Brownc3c5a192010-09-15 18:15:14 +01003364 &codec_list_fops))
3365 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
3366
Mark Brown8a9dab12011-01-10 22:25:21 +00003367 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
Mark Brownf3208782010-09-15 18:19:07 +01003368 &dai_list_fops))
3369 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
Mark Brown19c7ac22010-09-15 18:22:40 +01003370
Mark Brown8a9dab12011-01-10 22:25:21 +00003371 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
Mark Brown19c7ac22010-09-15 18:22:40 +01003372 &platform_list_fops))
3373 pr_warn("ASoC: Failed to create platform list debugfs file\n");
Mark Brown384c89e2008-12-03 17:34:03 +00003374#endif
3375
Mark Brownfb257892011-04-28 10:57:54 +01003376 snd_soc_util_init();
3377
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003378 return platform_driver_register(&soc_driver);
3379}
Mark Brown4abe8e12010-10-12 17:41:03 +01003380module_init(snd_soc_init);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003381
Mark Brown7d8c16a2008-11-30 22:11:24 +00003382static void __exit snd_soc_exit(void)
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003383{
Mark Brownfb257892011-04-28 10:57:54 +01003384 snd_soc_util_exit();
3385
Mark Brown384c89e2008-12-03 17:34:03 +00003386#ifdef CONFIG_DEBUG_FS
Mark Brown8a9dab12011-01-10 22:25:21 +00003387 debugfs_remove_recursive(snd_soc_debugfs_root);
Mark Brown384c89e2008-12-03 17:34:03 +00003388#endif
Mark Brown3ff3f642008-05-19 12:32:25 +02003389 platform_driver_unregister(&soc_driver);
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003390}
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003391module_exit(snd_soc_exit);
3392
3393/* Module information */
Liam Girdwoodd3311242008-10-12 13:17:36 +01003394MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
Frank Mandarinodb2a4162006-10-06 18:31:09 +02003395MODULE_DESCRIPTION("ALSA SoC Core");
3396MODULE_LICENSE("GPL");
Kay Sievers8b45a202008-04-14 13:33:36 +02003397MODULE_ALIAS("platform:soc-audio");