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Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
f0e8ed85 | 33 | #include <linux/ctype.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
bec4fa05 | 35 | #include <linux/of.h> |
474828a4 | 36 | #include <sound/ac97_codec.h> |
db2a4165 | 37 | #include <sound/core.h> |
3028eb8c | 38 | #include <sound/jack.h> |
db2a4165 FM |
39 | #include <sound/pcm.h> |
40 | #include <sound/pcm_params.h> | |
41 | #include <sound/soc.h> | |
db2a4165 FM |
42 | #include <sound/initval.h> |
43 | ||
a8b1d34f MB |
44 | #define CREATE_TRACE_POINTS |
45 | #include <trace/events/asoc.h> | |
46 | ||
f0fba2ad LG |
47 | #define NAME_SIZE 32 |
48 | ||
db2a4165 FM |
49 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
50 | ||
384c89e2 | 51 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
52 | struct dentry *snd_soc_debugfs_root; |
53 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
54 | #endif |
55 | ||
c5af3a2e MB |
56 | static DEFINE_MUTEX(client_mutex); |
57 | static LIST_HEAD(card_list); | |
9115171a | 58 | static LIST_HEAD(dai_list); |
12a48a8c | 59 | static LIST_HEAD(platform_list); |
0d0cf00a | 60 | static LIST_HEAD(codec_list); |
c5af3a2e | 61 | |
db2a4165 FM |
62 | /* |
63 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
64 | * It can be used to eliminate pops between different playback streams, e.g. | |
65 | * between two audio tracks. | |
66 | */ | |
67 | static int pmdown_time = 5000; | |
68 | module_param(pmdown_time, int, 0); | |
69 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
70 | ||
2bc9a81e DP |
71 | /* returns the minimum number of bytes needed to represent |
72 | * a particular given value */ | |
73 | static int min_bytes_needed(unsigned long val) | |
74 | { | |
75 | int c = 0; | |
76 | int i; | |
77 | ||
78 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
79 | if (val & (1UL << i)) | |
80 | break; | |
81 | c = (sizeof val * 8) - c; | |
82 | if (!c || (c % 8)) | |
83 | c = (c + 8) / 8; | |
84 | else | |
85 | c /= 8; | |
86 | return c; | |
87 | } | |
88 | ||
13fd179f DP |
89 | /* fill buf which is 'len' bytes with a formatted |
90 | * string of the form 'reg: value\n' */ | |
91 | static int format_register_str(struct snd_soc_codec *codec, | |
92 | unsigned int reg, char *buf, size_t len) | |
93 | { | |
00b317a4 SW |
94 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
95 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
96 | int ret; |
97 | char tmpbuf[len + 1]; | |
98 | char regbuf[regsize + 1]; | |
99 | ||
100 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
101 | * try to abuse this function */ | |
102 | WARN_ON(len > 63); | |
103 | ||
104 | /* +2 for ': ' and + 1 for '\n' */ | |
105 | if (wordsize + regsize + 2 + 1 != len) | |
106 | return -EINVAL; | |
107 | ||
25032c11 | 108 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
109 | if (ret < 0) { |
110 | memset(regbuf, 'X', regsize); | |
111 | regbuf[regsize] = '\0'; | |
112 | } else { | |
113 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
114 | } | |
115 | ||
116 | /* prepare the buffer */ | |
117 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
118 | /* copy it back to the caller without the '\0' */ | |
119 | memcpy(buf, tmpbuf, len); | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
2624d5fa | 124 | /* codec register dump */ |
13fd179f DP |
125 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
126 | size_t count, loff_t pos) | |
2624d5fa | 127 | { |
13fd179f | 128 | int i, step = 1; |
2bc9a81e | 129 | int wordsize, regsize; |
13fd179f DP |
130 | int len; |
131 | size_t total = 0; | |
132 | loff_t p = 0; | |
2bc9a81e | 133 | |
00b317a4 SW |
134 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
135 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 136 | |
13fd179f DP |
137 | len = wordsize + regsize + 2 + 1; |
138 | ||
f0fba2ad | 139 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
140 | return 0; |
141 | ||
f0fba2ad LG |
142 | if (codec->driver->reg_cache_step) |
143 | step = codec->driver->reg_cache_step; | |
2624d5fa | 144 | |
f0fba2ad | 145 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
b92d150b | 146 | if (!snd_soc_codec_readable_register(codec, i)) |
2624d5fa | 147 | continue; |
f0fba2ad LG |
148 | if (codec->driver->display_register) { |
149 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 150 | PAGE_SIZE - count, i); |
5164d74d | 151 | } else { |
13fd179f DP |
152 | /* only support larger than PAGE_SIZE bytes debugfs |
153 | * entries for the default case */ | |
154 | if (p >= pos) { | |
155 | if (total + len >= count - 1) | |
156 | break; | |
157 | format_register_str(codec, i, buf + total, len); | |
158 | total += len; | |
159 | } | |
160 | p += len; | |
5164d74d | 161 | } |
2624d5fa MB |
162 | } |
163 | ||
13fd179f | 164 | total = min(total, count - 1); |
2624d5fa | 165 | |
13fd179f | 166 | return total; |
2624d5fa | 167 | } |
13fd179f | 168 | |
2624d5fa MB |
169 | static ssize_t codec_reg_show(struct device *dev, |
170 | struct device_attribute *attr, char *buf) | |
171 | { | |
36ae1a96 | 172 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 173 | |
13fd179f | 174 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
175 | } |
176 | ||
177 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
178 | ||
dbe21408 MB |
179 | static ssize_t pmdown_time_show(struct device *dev, |
180 | struct device_attribute *attr, char *buf) | |
181 | { | |
36ae1a96 | 182 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 183 | |
f0fba2ad | 184 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
185 | } |
186 | ||
187 | static ssize_t pmdown_time_set(struct device *dev, | |
188 | struct device_attribute *attr, | |
189 | const char *buf, size_t count) | |
190 | { | |
36ae1a96 | 191 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 192 | int ret; |
dbe21408 | 193 | |
c593b520 MB |
194 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
195 | if (ret) | |
196 | return ret; | |
dbe21408 MB |
197 | |
198 | return count; | |
199 | } | |
200 | ||
201 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
202 | ||
2624d5fa MB |
203 | #ifdef CONFIG_DEBUG_FS |
204 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
205 | { | |
206 | file->private_data = inode->i_private; | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
13fd179f | 211 | size_t count, loff_t *ppos) |
2624d5fa MB |
212 | { |
213 | ssize_t ret; | |
214 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
215 | char *buf; |
216 | ||
217 | if (*ppos < 0 || !count) | |
218 | return -EINVAL; | |
219 | ||
220 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
221 | if (!buf) |
222 | return -ENOMEM; | |
13fd179f DP |
223 | |
224 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
225 | if (ret >= 0) { | |
226 | if (copy_to_user(user_buf, buf, ret)) { | |
227 | kfree(buf); | |
228 | return -EFAULT; | |
229 | } | |
230 | *ppos += ret; | |
231 | } | |
232 | ||
2624d5fa MB |
233 | kfree(buf); |
234 | return ret; | |
235 | } | |
236 | ||
237 | static ssize_t codec_reg_write_file(struct file *file, | |
238 | const char __user *user_buf, size_t count, loff_t *ppos) | |
239 | { | |
240 | char buf[32]; | |
34e268d8 | 241 | size_t buf_size; |
2624d5fa MB |
242 | char *start = buf; |
243 | unsigned long reg, value; | |
2624d5fa MB |
244 | struct snd_soc_codec *codec = file->private_data; |
245 | ||
246 | buf_size = min(count, (sizeof(buf)-1)); | |
247 | if (copy_from_user(buf, user_buf, buf_size)) | |
248 | return -EFAULT; | |
249 | buf[buf_size] = 0; | |
2624d5fa MB |
250 | |
251 | while (*start == ' ') | |
252 | start++; | |
253 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
254 | while (*start == ' ') |
255 | start++; | |
256 | if (strict_strtoul(start, 16, &value)) | |
257 | return -EINVAL; | |
0d51a9cb MB |
258 | |
259 | /* Userspace has been fiddling around behind the kernel's back */ | |
260 | add_taint(TAINT_USER); | |
261 | ||
e4f078d8 | 262 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
263 | return buf_size; |
264 | } | |
265 | ||
266 | static const struct file_operations codec_reg_fops = { | |
267 | .open = codec_reg_open_file, | |
268 | .read = codec_reg_read_file, | |
269 | .write = codec_reg_write_file, | |
6038f373 | 270 | .llseek = default_llseek, |
2624d5fa MB |
271 | }; |
272 | ||
273 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
274 | { | |
d6ce4cf3 JN |
275 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
276 | ||
277 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
278 | debugfs_card_root); | |
2624d5fa MB |
279 | if (!codec->debugfs_codec_root) { |
280 | printk(KERN_WARNING | |
281 | "ASoC: Failed to create codec debugfs directory\n"); | |
282 | return; | |
283 | } | |
284 | ||
aaee8ef1 MB |
285 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
286 | &codec->cache_sync); | |
287 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
288 | &codec->cache_only); | |
289 | ||
2624d5fa MB |
290 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
291 | codec->debugfs_codec_root, | |
292 | codec, &codec_reg_fops); | |
293 | if (!codec->debugfs_reg) | |
294 | printk(KERN_WARNING | |
295 | "ASoC: Failed to create codec register debugfs file\n"); | |
296 | ||
8eecaf62 | 297 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
298 | } |
299 | ||
300 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
301 | { | |
302 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
303 | } | |
304 | ||
c3c5a19a MB |
305 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
306 | size_t count, loff_t *ppos) | |
307 | { | |
308 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 309 | ssize_t len, ret = 0; |
c3c5a19a MB |
310 | struct snd_soc_codec *codec; |
311 | ||
312 | if (!buf) | |
313 | return -ENOMEM; | |
314 | ||
2b194f9d MB |
315 | list_for_each_entry(codec, &codec_list, list) { |
316 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
317 | codec->name); | |
318 | if (len >= 0) | |
319 | ret += len; | |
320 | if (ret > PAGE_SIZE) { | |
321 | ret = PAGE_SIZE; | |
322 | break; | |
323 | } | |
324 | } | |
c3c5a19a MB |
325 | |
326 | if (ret >= 0) | |
327 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
328 | ||
329 | kfree(buf); | |
330 | ||
331 | return ret; | |
332 | } | |
333 | ||
334 | static const struct file_operations codec_list_fops = { | |
335 | .read = codec_list_read_file, | |
336 | .llseek = default_llseek,/* read accesses f_pos */ | |
337 | }; | |
338 | ||
f3208780 MB |
339 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
340 | size_t count, loff_t *ppos) | |
341 | { | |
342 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 343 | ssize_t len, ret = 0; |
f3208780 MB |
344 | struct snd_soc_dai *dai; |
345 | ||
346 | if (!buf) | |
347 | return -ENOMEM; | |
348 | ||
2b194f9d MB |
349 | list_for_each_entry(dai, &dai_list, list) { |
350 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
351 | if (len >= 0) | |
352 | ret += len; | |
353 | if (ret > PAGE_SIZE) { | |
354 | ret = PAGE_SIZE; | |
355 | break; | |
356 | } | |
357 | } | |
f3208780 | 358 | |
2b194f9d | 359 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
360 | |
361 | kfree(buf); | |
362 | ||
363 | return ret; | |
364 | } | |
365 | ||
366 | static const struct file_operations dai_list_fops = { | |
367 | .read = dai_list_read_file, | |
368 | .llseek = default_llseek,/* read accesses f_pos */ | |
369 | }; | |
370 | ||
19c7ac27 MB |
371 | static ssize_t platform_list_read_file(struct file *file, |
372 | char __user *user_buf, | |
373 | size_t count, loff_t *ppos) | |
374 | { | |
375 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 376 | ssize_t len, ret = 0; |
19c7ac27 MB |
377 | struct snd_soc_platform *platform; |
378 | ||
379 | if (!buf) | |
380 | return -ENOMEM; | |
381 | ||
2b194f9d MB |
382 | list_for_each_entry(platform, &platform_list, list) { |
383 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
384 | platform->name); | |
385 | if (len >= 0) | |
386 | ret += len; | |
387 | if (ret > PAGE_SIZE) { | |
388 | ret = PAGE_SIZE; | |
389 | break; | |
390 | } | |
391 | } | |
19c7ac27 | 392 | |
2b194f9d | 393 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
394 | |
395 | kfree(buf); | |
396 | ||
397 | return ret; | |
398 | } | |
399 | ||
400 | static const struct file_operations platform_list_fops = { | |
401 | .read = platform_list_read_file, | |
402 | .llseek = default_llseek,/* read accesses f_pos */ | |
403 | }; | |
404 | ||
a6052154 JN |
405 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
406 | { | |
407 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 408 | snd_soc_debugfs_root); |
3a45b867 | 409 | if (!card->debugfs_card_root) { |
a6052154 | 410 | dev_warn(card->dev, |
7c08be84 | 411 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
412 | return; |
413 | } | |
414 | ||
415 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
416 | card->debugfs_card_root, | |
417 | &card->pop_time); | |
418 | if (!card->debugfs_pop_time) | |
419 | dev_warn(card->dev, | |
420 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
421 | } |
422 | ||
423 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
424 | { | |
425 | debugfs_remove_recursive(card->debugfs_card_root); | |
426 | } | |
427 | ||
2624d5fa MB |
428 | #else |
429 | ||
430 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
431 | { | |
432 | } | |
433 | ||
434 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
435 | { | |
436 | } | |
b95fccbc AL |
437 | |
438 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
439 | { | |
440 | } | |
441 | ||
442 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
443 | { | |
444 | } | |
2624d5fa MB |
445 | #endif |
446 | ||
db2a4165 FM |
447 | #ifdef CONFIG_SND_SOC_AC97_BUS |
448 | /* unregister ac97 codec */ | |
449 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
450 | { | |
451 | if (codec->ac97->dev.bus) | |
452 | device_unregister(&codec->ac97->dev); | |
453 | return 0; | |
454 | } | |
455 | ||
456 | /* stop no dev release warning */ | |
457 | static void soc_ac97_device_release(struct device *dev){} | |
458 | ||
459 | /* register ac97 codec to bus */ | |
460 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
461 | { | |
462 | int err; | |
463 | ||
464 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 465 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
466 | codec->ac97->dev.release = soc_ac97_device_release; |
467 | ||
bb072bf0 | 468 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 469 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
470 | err = device_register(&codec->ac97->dev); |
471 | if (err < 0) { | |
472 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
473 | codec->ac97->dev.bus = NULL; | |
474 | return err; | |
475 | } | |
476 | return 0; | |
477 | } | |
478 | #endif | |
479 | ||
6f8ab4ac | 480 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 481 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 482 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 483 | { |
6f8ab4ac | 484 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 485 | struct snd_soc_codec *codec; |
db2a4165 FM |
486 | int i; |
487 | ||
e3509ff0 DM |
488 | /* If the initialization of this soc device failed, there is no codec |
489 | * associated with it. Just bail out in this case. | |
490 | */ | |
f0fba2ad | 491 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
492 | return 0; |
493 | ||
6ed25978 AG |
494 | /* Due to the resume being scheduled into a workqueue we could |
495 | * suspend before that's finished - wait for it to complete. | |
496 | */ | |
f0fba2ad LG |
497 | snd_power_lock(card->snd_card); |
498 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
499 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
500 | |
501 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 502 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 503 | |
a00f90f9 | 504 | /* mute any active DACs */ |
f0fba2ad LG |
505 | for (i = 0; i < card->num_rtd; i++) { |
506 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
507 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 508 | |
f0fba2ad | 509 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
510 | continue; |
511 | ||
f0fba2ad LG |
512 | if (drv->ops->digital_mute && dai->playback_active) |
513 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
514 | } |
515 | ||
4ccab3e7 | 516 | /* suspend all pcms */ |
f0fba2ad LG |
517 | for (i = 0; i < card->num_rtd; i++) { |
518 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
519 | continue; |
520 | ||
f0fba2ad | 521 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 522 | } |
4ccab3e7 | 523 | |
87506549 | 524 | if (card->suspend_pre) |
70b2ac12 | 525 | card->suspend_pre(card); |
db2a4165 | 526 | |
f0fba2ad LG |
527 | for (i = 0; i < card->num_rtd; i++) { |
528 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
529 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 530 | |
f0fba2ad | 531 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
532 | continue; |
533 | ||
f0fba2ad LG |
534 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
535 | cpu_dai->driver->suspend(cpu_dai); | |
536 | if (platform->driver->suspend && !platform->suspended) { | |
537 | platform->driver->suspend(cpu_dai); | |
538 | platform->suspended = 1; | |
539 | } | |
db2a4165 FM |
540 | } |
541 | ||
542 | /* close any waiting streams and save state */ | |
f0fba2ad | 543 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 544 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 545 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 546 | } |
db2a4165 | 547 | |
f0fba2ad LG |
548 | for (i = 0; i < card->num_rtd; i++) { |
549 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 550 | |
f0fba2ad | 551 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
552 | continue; |
553 | ||
f0fba2ad LG |
554 | if (driver->playback.stream_name != NULL) |
555 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 556 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
557 | |
558 | if (driver->capture.stream_name != NULL) | |
559 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
560 | SND_SOC_DAPM_STREAM_SUSPEND); |
561 | } | |
562 | ||
f0fba2ad | 563 | /* suspend all CODECs */ |
2eea392d | 564 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
565 | /* If there are paths active then the CODEC will be held with |
566 | * bias _ON and should not be suspended. */ | |
567 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 568 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
569 | case SND_SOC_BIAS_STANDBY: |
570 | case SND_SOC_BIAS_OFF: | |
84b315ee | 571 | codec->driver->suspend(codec); |
f0fba2ad | 572 | codec->suspended = 1; |
7be4ba24 | 573 | codec->cache_sync = 1; |
f0fba2ad LG |
574 | break; |
575 | default: | |
576 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
577 | break; | |
578 | } | |
1547aba9 MB |
579 | } |
580 | } | |
db2a4165 | 581 | |
f0fba2ad LG |
582 | for (i = 0; i < card->num_rtd; i++) { |
583 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 584 | |
f0fba2ad | 585 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
586 | continue; |
587 | ||
f0fba2ad LG |
588 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
589 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
590 | } |
591 | ||
87506549 | 592 | if (card->suspend_post) |
70b2ac12 | 593 | card->suspend_post(card); |
db2a4165 FM |
594 | |
595 | return 0; | |
596 | } | |
6f8ab4ac | 597 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 598 | |
6ed25978 AG |
599 | /* deferred resume work, so resume can complete before we finished |
600 | * setting our codec back up, which can be very slow on I2C | |
601 | */ | |
602 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 603 | { |
f0fba2ad LG |
604 | struct snd_soc_card *card = |
605 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 606 | struct snd_soc_codec *codec; |
db2a4165 FM |
607 | int i; |
608 | ||
6ed25978 AG |
609 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
610 | * so userspace apps are blocked from touching us | |
611 | */ | |
612 | ||
f0fba2ad | 613 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 614 | |
9949788b | 615 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 616 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 617 | |
87506549 | 618 | if (card->resume_pre) |
70b2ac12 | 619 | card->resume_pre(card); |
db2a4165 | 620 | |
f0fba2ad LG |
621 | /* resume AC97 DAIs */ |
622 | for (i = 0; i < card->num_rtd; i++) { | |
623 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 624 | |
f0fba2ad | 625 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
626 | continue; |
627 | ||
f0fba2ad LG |
628 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
629 | cpu_dai->driver->resume(cpu_dai); | |
630 | } | |
631 | ||
2eea392d | 632 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
633 | /* If the CODEC was idle over suspend then it will have been |
634 | * left with bias OFF or STANDBY and suspended so we must now | |
635 | * resume. Otherwise the suspend was suppressed. | |
636 | */ | |
637 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 638 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
639 | case SND_SOC_BIAS_STANDBY: |
640 | case SND_SOC_BIAS_OFF: | |
641 | codec->driver->resume(codec); | |
642 | codec->suspended = 0; | |
643 | break; | |
644 | default: | |
645 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
646 | break; | |
647 | } | |
1547aba9 MB |
648 | } |
649 | } | |
db2a4165 | 650 | |
f0fba2ad LG |
651 | for (i = 0; i < card->num_rtd; i++) { |
652 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 653 | |
f0fba2ad | 654 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
655 | continue; |
656 | ||
f0fba2ad LG |
657 | if (driver->playback.stream_name != NULL) |
658 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 659 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
660 | |
661 | if (driver->capture.stream_name != NULL) | |
662 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
663 | SND_SOC_DAPM_STREAM_RESUME); |
664 | } | |
665 | ||
3ff3f64b | 666 | /* unmute any active DACs */ |
f0fba2ad LG |
667 | for (i = 0; i < card->num_rtd; i++) { |
668 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
669 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 670 | |
f0fba2ad | 671 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
672 | continue; |
673 | ||
f0fba2ad LG |
674 | if (drv->ops->digital_mute && dai->playback_active) |
675 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
676 | } |
677 | ||
f0fba2ad LG |
678 | for (i = 0; i < card->num_rtd; i++) { |
679 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
680 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 681 | |
f0fba2ad | 682 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
683 | continue; |
684 | ||
f0fba2ad LG |
685 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
686 | cpu_dai->driver->resume(cpu_dai); | |
687 | if (platform->driver->resume && platform->suspended) { | |
688 | platform->driver->resume(cpu_dai); | |
689 | platform->suspended = 0; | |
690 | } | |
db2a4165 FM |
691 | } |
692 | ||
87506549 | 693 | if (card->resume_post) |
70b2ac12 | 694 | card->resume_post(card); |
db2a4165 | 695 | |
f0fba2ad | 696 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
697 | |
698 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 699 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
700 | } |
701 | ||
702 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 703 | int snd_soc_resume(struct device *dev) |
6ed25978 | 704 | { |
6f8ab4ac | 705 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 706 | int i, ac97_control = 0; |
b9dd94a8 | 707 | |
5ff1ddf2 EM |
708 | /* If the initialization of this soc device failed, there is no codec |
709 | * associated with it. Just bail out in this case. | |
710 | */ | |
711 | if (list_empty(&card->codec_dev_list)) | |
712 | return 0; | |
713 | ||
64ab9baa MB |
714 | /* AC97 devices might have other drivers hanging off them so |
715 | * need to resume immediately. Other drivers don't have that | |
716 | * problem and may take a substantial amount of time to resume | |
717 | * due to I/O costs and anti-pop so handle them out of line. | |
718 | */ | |
f0fba2ad LG |
719 | for (i = 0; i < card->num_rtd; i++) { |
720 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
721 | ac97_control |= cpu_dai->driver->ac97_control; |
722 | } | |
723 | if (ac97_control) { | |
724 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
725 | soc_resume_deferred(&card->deferred_resume_work); | |
726 | } else { | |
727 | dev_dbg(dev, "Scheduling resume work\n"); | |
728 | if (!schedule_work(&card->deferred_resume_work)) | |
729 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 730 | } |
6ed25978 | 731 | |
db2a4165 FM |
732 | return 0; |
733 | } | |
6f8ab4ac | 734 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 735 | #else |
6f8ab4ac MB |
736 | #define snd_soc_suspend NULL |
737 | #define snd_soc_resume NULL | |
db2a4165 FM |
738 | #endif |
739 | ||
85e7652d | 740 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
741 | }; |
742 | ||
f0fba2ad | 743 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 744 | { |
f0fba2ad LG |
745 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
746 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 747 | struct snd_soc_codec *codec; |
435c5e25 | 748 | struct snd_soc_platform *platform; |
f0fba2ad | 749 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 750 | const char *platform_name; |
435c5e25 | 751 | |
f0fba2ad LG |
752 | if (rtd->complete) |
753 | return 1; | |
754 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 755 | |
f0fba2ad LG |
756 | /* do we already have the CPU DAI for this link ? */ |
757 | if (rtd->cpu_dai) { | |
758 | goto find_codec; | |
759 | } | |
760 | /* no, then find CPU DAI from registered DAIs*/ | |
761 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
5a504963 SW |
762 | if (dai_link->cpu_dai_of_node) { |
763 | if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node) | |
764 | continue; | |
765 | } else { | |
766 | if (strcmp(cpu_dai->name, dai_link->cpu_dai_name)) | |
767 | continue; | |
768 | } | |
2610ab77 SW |
769 | |
770 | rtd->cpu_dai = cpu_dai; | |
771 | goto find_codec; | |
435c5e25 | 772 | } |
f0fba2ad LG |
773 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
774 | dai_link->cpu_dai_name); | |
6308419a | 775 | |
f0fba2ad LG |
776 | find_codec: |
777 | /* do we already have the CODEC for this link ? */ | |
778 | if (rtd->codec) { | |
779 | goto find_platform; | |
780 | } | |
781 | ||
782 | /* no, then find CODEC from registered CODECs*/ | |
783 | list_for_each_entry(codec, &codec_list, list) { | |
5a504963 SW |
784 | if (dai_link->codec_of_node) { |
785 | if (codec->dev->of_node != dai_link->codec_of_node) | |
786 | continue; | |
787 | } else { | |
788 | if (strcmp(codec->name, dai_link->codec_name)) | |
789 | continue; | |
790 | } | |
2610ab77 SW |
791 | |
792 | rtd->codec = codec; | |
793 | ||
794 | /* | |
795 | * CODEC found, so find CODEC DAI from registered DAIs from | |
796 | * this CODEC | |
797 | */ | |
798 | list_for_each_entry(codec_dai, &dai_list, list) { | |
799 | if (codec->dev == codec_dai->dev && | |
800 | !strcmp(codec_dai->name, | |
801 | dai_link->codec_dai_name)) { | |
f0fba2ad | 802 | |
2610ab77 SW |
803 | rtd->codec_dai = codec_dai; |
804 | goto find_platform; | |
805 | } | |
435c5e25 | 806 | } |
2610ab77 SW |
807 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
808 | dai_link->codec_dai_name); | |
809 | ||
810 | goto find_platform; | |
f0fba2ad LG |
811 | } |
812 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
813 | dai_link->codec_name); | |
6b05eda6 | 814 | |
f0fba2ad | 815 | find_platform: |
848dd8be MB |
816 | /* do we need a platform? */ |
817 | if (rtd->platform) | |
f0fba2ad | 818 | goto out; |
848dd8be MB |
819 | |
820 | /* if there's no platform we match on the empty platform */ | |
821 | platform_name = dai_link->platform_name; | |
5a504963 | 822 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
823 | platform_name = "snd-soc-dummy"; |
824 | ||
825 | /* no, then find one from the set of registered platforms */ | |
f0fba2ad | 826 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
827 | if (dai_link->platform_of_node) { |
828 | if (platform->dev->of_node != | |
829 | dai_link->platform_of_node) | |
830 | continue; | |
831 | } else { | |
832 | if (strcmp(platform->name, platform_name)) | |
833 | continue; | |
834 | } | |
2610ab77 SW |
835 | |
836 | rtd->platform = platform; | |
837 | goto out; | |
02a06d30 BS |
838 | } |
839 | ||
f0fba2ad LG |
840 | dev_dbg(card->dev, "platform %s not registered\n", |
841 | dai_link->platform_name); | |
842 | return 0; | |
843 | ||
844 | out: | |
845 | /* mark rtd as complete if we found all 4 of our client devices */ | |
846 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
847 | rtd->complete = 1; | |
848 | card->num_rtd++; | |
849 | } | |
850 | return 1; | |
851 | } | |
852 | ||
589c3563 JN |
853 | static void soc_remove_codec(struct snd_soc_codec *codec) |
854 | { | |
855 | int err; | |
856 | ||
857 | if (codec->driver->remove) { | |
858 | err = codec->driver->remove(codec); | |
859 | if (err < 0) | |
860 | dev_err(codec->dev, | |
861 | "asoc: failed to remove %s: %d\n", | |
862 | codec->name, err); | |
863 | } | |
864 | ||
865 | /* Make sure all DAPM widgets are freed */ | |
866 | snd_soc_dapm_free(&codec->dapm); | |
867 | ||
868 | soc_cleanup_codec_debugfs(codec); | |
869 | codec->probed = 0; | |
870 | list_del(&codec->card_list); | |
871 | module_put(codec->dev->driver->owner); | |
872 | } | |
873 | ||
0168bf0d | 874 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
875 | { |
876 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
877 | struct snd_soc_codec *codec = rtd->codec; | |
878 | struct snd_soc_platform *platform = rtd->platform; | |
879 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
880 | int err; | |
881 | ||
882 | /* unregister the rtd device */ | |
883 | if (rtd->dev_registered) { | |
36ae1a96 MB |
884 | device_remove_file(rtd->dev, &dev_attr_pmdown_time); |
885 | device_remove_file(rtd->dev, &dev_attr_codec_reg); | |
886 | device_unregister(rtd->dev); | |
f0fba2ad LG |
887 | rtd->dev_registered = 0; |
888 | } | |
889 | ||
890 | /* remove the CODEC DAI */ | |
0168bf0d LG |
891 | if (codec_dai && codec_dai->probed && |
892 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
893 | if (codec_dai->driver->remove) { |
894 | err = codec_dai->driver->remove(codec_dai); | |
895 | if (err < 0) | |
896 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 897 | } |
f0fba2ad LG |
898 | codec_dai->probed = 0; |
899 | list_del(&codec_dai->card_list); | |
900 | } | |
6b05eda6 | 901 | |
f0fba2ad | 902 | /* remove the platform */ |
0168bf0d LG |
903 | if (platform && platform->probed && |
904 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
905 | if (platform->driver->remove) { |
906 | err = platform->driver->remove(platform); | |
907 | if (err < 0) | |
908 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
909 | } | |
910 | platform->probed = 0; | |
911 | list_del(&platform->card_list); | |
912 | module_put(platform->dev->driver->owner); | |
913 | } | |
435c5e25 | 914 | |
f0fba2ad | 915 | /* remove the CODEC */ |
0168bf0d LG |
916 | if (codec && codec->probed && |
917 | codec->driver->remove_order == order) | |
589c3563 | 918 | soc_remove_codec(codec); |
db2a4165 | 919 | |
f0fba2ad | 920 | /* remove the cpu_dai */ |
0168bf0d LG |
921 | if (cpu_dai && cpu_dai->probed && |
922 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
923 | if (cpu_dai->driver->remove) { |
924 | err = cpu_dai->driver->remove(cpu_dai); | |
925 | if (err < 0) | |
926 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 927 | } |
f0fba2ad LG |
928 | cpu_dai->probed = 0; |
929 | list_del(&cpu_dai->card_list); | |
930 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 931 | } |
f0fba2ad | 932 | } |
db2a4165 | 933 | |
0671fd8e KM |
934 | static void soc_remove_dai_links(struct snd_soc_card *card) |
935 | { | |
0168bf0d | 936 | int dai, order; |
0671fd8e | 937 | |
0168bf0d LG |
938 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
939 | order++) { | |
940 | for (dai = 0; dai < card->num_rtd; dai++) | |
941 | soc_remove_dai_link(card, dai, order); | |
942 | } | |
0671fd8e KM |
943 | card->num_rtd = 0; |
944 | } | |
945 | ||
ead9b919 JN |
946 | static void soc_set_name_prefix(struct snd_soc_card *card, |
947 | struct snd_soc_codec *codec) | |
948 | { | |
949 | int i; | |
950 | ||
ff819b83 | 951 | if (card->codec_conf == NULL) |
ead9b919 JN |
952 | return; |
953 | ||
ff819b83 DP |
954 | for (i = 0; i < card->num_configs; i++) { |
955 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
956 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
957 | codec->name_prefix = map->name_prefix; | |
958 | break; | |
959 | } | |
960 | } | |
961 | } | |
962 | ||
589c3563 JN |
963 | static int soc_probe_codec(struct snd_soc_card *card, |
964 | struct snd_soc_codec *codec) | |
965 | { | |
966 | int ret = 0; | |
89b95ac0 | 967 | const struct snd_soc_codec_driver *driver = codec->driver; |
589c3563 JN |
968 | |
969 | codec->card = card; | |
970 | codec->dapm.card = card; | |
971 | soc_set_name_prefix(card, codec); | |
972 | ||
70d29331 JN |
973 | if (!try_module_get(codec->dev->driver->owner)) |
974 | return -ENODEV; | |
975 | ||
d5d1e0be LPC |
976 | soc_init_codec_debugfs(codec); |
977 | ||
77530150 LPC |
978 | if (driver->dapm_widgets) |
979 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
980 | driver->num_dapm_widgets); | |
981 | ||
33c5f969 MB |
982 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
983 | ||
89b95ac0 MB |
984 | if (driver->probe) { |
985 | ret = driver->probe(codec); | |
589c3563 JN |
986 | if (ret < 0) { |
987 | dev_err(codec->dev, | |
988 | "asoc: failed to probe CODEC %s: %d\n", | |
989 | codec->name, ret); | |
70d29331 | 990 | goto err_probe; |
589c3563 JN |
991 | } |
992 | } | |
993 | ||
b7af1daf MB |
994 | if (driver->controls) |
995 | snd_soc_add_controls(codec, driver->controls, | |
996 | driver->num_controls); | |
89b95ac0 MB |
997 | if (driver->dapm_routes) |
998 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
999 | driver->num_dapm_routes); | |
1000 | ||
589c3563 JN |
1001 | /* mark codec as probed and add to card codec list */ |
1002 | codec->probed = 1; | |
1003 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1004 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1005 | |
70d29331 JN |
1006 | return 0; |
1007 | ||
1008 | err_probe: | |
d5d1e0be | 1009 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1010 | module_put(codec->dev->driver->owner); |
1011 | ||
589c3563 JN |
1012 | return ret; |
1013 | } | |
1014 | ||
956245e9 LG |
1015 | static int soc_probe_platform(struct snd_soc_card *card, |
1016 | struct snd_soc_platform *platform) | |
1017 | { | |
1018 | int ret = 0; | |
1019 | const struct snd_soc_platform_driver *driver = platform->driver; | |
1020 | ||
1021 | platform->card = card; | |
b7950641 | 1022 | platform->dapm.card = card; |
956245e9 LG |
1023 | |
1024 | if (!try_module_get(platform->dev->driver->owner)) | |
1025 | return -ENODEV; | |
1026 | ||
cb2cf612 LG |
1027 | if (driver->dapm_widgets) |
1028 | snd_soc_dapm_new_controls(&platform->dapm, | |
1029 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1030 | ||
956245e9 LG |
1031 | if (driver->probe) { |
1032 | ret = driver->probe(platform); | |
1033 | if (ret < 0) { | |
1034 | dev_err(platform->dev, | |
1035 | "asoc: failed to probe platform %s: %d\n", | |
1036 | platform->name, ret); | |
1037 | goto err_probe; | |
1038 | } | |
1039 | } | |
1040 | ||
cb2cf612 LG |
1041 | if (driver->controls) |
1042 | snd_soc_add_platform_controls(platform, driver->controls, | |
1043 | driver->num_controls); | |
1044 | if (driver->dapm_routes) | |
1045 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1046 | driver->num_dapm_routes); | |
1047 | ||
956245e9 LG |
1048 | /* mark platform as probed and add to card platform list */ |
1049 | platform->probed = 1; | |
1050 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1051 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1052 | |
1053 | return 0; | |
1054 | ||
1055 | err_probe: | |
1056 | module_put(platform->dev->driver->owner); | |
1057 | ||
1058 | return ret; | |
1059 | } | |
1060 | ||
36ae1a96 MB |
1061 | static void rtd_release(struct device *dev) |
1062 | { | |
1063 | kfree(dev); | |
1064 | } | |
f0fba2ad | 1065 | |
589c3563 JN |
1066 | static int soc_post_component_init(struct snd_soc_card *card, |
1067 | struct snd_soc_codec *codec, | |
1068 | int num, int dailess) | |
1069 | { | |
1070 | struct snd_soc_dai_link *dai_link = NULL; | |
1071 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1072 | struct snd_soc_pcm_runtime *rtd; | |
1073 | const char *temp, *name; | |
1074 | int ret = 0; | |
1075 | ||
1076 | if (!dailess) { | |
1077 | dai_link = &card->dai_link[num]; | |
1078 | rtd = &card->rtd[num]; | |
1079 | name = dai_link->name; | |
1080 | } else { | |
1081 | aux_dev = &card->aux_dev[num]; | |
1082 | rtd = &card->rtd_aux[num]; | |
1083 | name = aux_dev->name; | |
1084 | } | |
0962bb21 | 1085 | rtd->card = card; |
589c3563 | 1086 | |
4b1cfcb4 MB |
1087 | /* Make sure all DAPM widgets are instantiated */ |
1088 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1089 | ||
589c3563 JN |
1090 | /* machine controls, routes and widgets are not prefixed */ |
1091 | temp = codec->name_prefix; | |
1092 | codec->name_prefix = NULL; | |
1093 | ||
1094 | /* do machine specific initialization */ | |
1095 | if (!dailess && dai_link->init) | |
1096 | ret = dai_link->init(rtd); | |
1097 | else if (dailess && aux_dev->init) | |
1098 | ret = aux_dev->init(&codec->dapm); | |
1099 | if (ret < 0) { | |
1100 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1101 | return ret; | |
1102 | } | |
1103 | codec->name_prefix = temp; | |
1104 | ||
589c3563 JN |
1105 | /* register the rtd device */ |
1106 | rtd->codec = codec; | |
36ae1a96 MB |
1107 | |
1108 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
1109 | if (!rtd->dev) | |
1110 | return -ENOMEM; | |
1111 | device_initialize(rtd->dev); | |
1112 | rtd->dev->parent = card->dev; | |
1113 | rtd->dev->release = rtd_release; | |
1114 | rtd->dev->init_name = name; | |
1115 | dev_set_drvdata(rtd->dev, rtd); | |
b8c0dab9 | 1116 | mutex_init(&rtd->pcm_mutex); |
36ae1a96 | 1117 | ret = device_add(rtd->dev); |
589c3563 JN |
1118 | if (ret < 0) { |
1119 | dev_err(card->dev, | |
1120 | "asoc: failed to register runtime device: %d\n", ret); | |
1121 | return ret; | |
1122 | } | |
1123 | rtd->dev_registered = 1; | |
1124 | ||
1125 | /* add DAPM sysfs entries for this codec */ | |
36ae1a96 | 1126 | ret = snd_soc_dapm_sys_add(rtd->dev); |
589c3563 JN |
1127 | if (ret < 0) |
1128 | dev_err(codec->dev, | |
1129 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1130 | ret); | |
1131 | ||
1132 | /* add codec sysfs entries */ | |
36ae1a96 | 1133 | ret = device_create_file(rtd->dev, &dev_attr_codec_reg); |
589c3563 JN |
1134 | if (ret < 0) |
1135 | dev_err(codec->dev, | |
1136 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1137 | ||
1138 | return 0; | |
1139 | } | |
1140 | ||
0168bf0d | 1141 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1142 | { |
1143 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1144 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1145 | struct snd_soc_codec *codec = rtd->codec; | |
1146 | struct snd_soc_platform *platform = rtd->platform; | |
1147 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1148 | int ret; | |
1149 | ||
0168bf0d LG |
1150 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1151 | card->name, num, order); | |
f0fba2ad LG |
1152 | |
1153 | /* config components */ | |
1154 | codec_dai->codec = codec; | |
f0fba2ad | 1155 | cpu_dai->platform = platform; |
f0fba2ad LG |
1156 | codec_dai->card = card; |
1157 | cpu_dai->card = card; | |
1158 | ||
1159 | /* set default power off timeout */ | |
1160 | rtd->pmdown_time = pmdown_time; | |
1161 | ||
1162 | /* probe the cpu_dai */ | |
0168bf0d LG |
1163 | if (!cpu_dai->probed && |
1164 | cpu_dai->driver->probe_order == order) { | |
61b61e3c LG |
1165 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1166 | return -ENODEV; | |
1167 | ||
f0fba2ad LG |
1168 | if (cpu_dai->driver->probe) { |
1169 | ret = cpu_dai->driver->probe(cpu_dai); | |
1170 | if (ret < 0) { | |
1171 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1172 | cpu_dai->name); | |
61b61e3c | 1173 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1174 | return ret; |
1175 | } | |
1176 | } | |
1177 | cpu_dai->probed = 1; | |
1c8371d6 | 1178 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1179 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1180 | } |
1181 | ||
f0fba2ad | 1182 | /* probe the CODEC */ |
0168bf0d LG |
1183 | if (!codec->probed && |
1184 | codec->driver->probe_order == order) { | |
589c3563 JN |
1185 | ret = soc_probe_codec(card, codec); |
1186 | if (ret < 0) | |
1187 | return ret; | |
db2a4165 FM |
1188 | } |
1189 | ||
f0fba2ad | 1190 | /* probe the platform */ |
0168bf0d LG |
1191 | if (!platform->probed && |
1192 | platform->driver->probe_order == order) { | |
956245e9 LG |
1193 | ret = soc_probe_platform(card, platform); |
1194 | if (ret < 0) | |
1195 | return ret; | |
f0fba2ad | 1196 | } |
6ed25978 | 1197 | |
f0fba2ad | 1198 | /* probe the CODEC DAI */ |
0168bf0d | 1199 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1200 | if (codec_dai->driver->probe) { |
1201 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1202 | if (ret < 0) { |
f0fba2ad LG |
1203 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1204 | codec_dai->name); | |
1205 | return ret; | |
fe3e78e0 MB |
1206 | } |
1207 | } | |
f0fba2ad | 1208 | |
1c8371d6 | 1209 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1210 | codec_dai->probed = 1; |
1211 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1212 | } |
1213 | ||
0168bf0d LG |
1214 | /* complete DAI probe during last probe */ |
1215 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1216 | return 0; | |
1217 | ||
589c3563 JN |
1218 | ret = soc_post_component_init(card, codec, num, 0); |
1219 | if (ret) | |
f0fba2ad | 1220 | return ret; |
fe3e78e0 | 1221 | |
36ae1a96 | 1222 | ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); |
f0fba2ad LG |
1223 | if (ret < 0) |
1224 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1225 | ||
f0fba2ad LG |
1226 | /* create the pcm */ |
1227 | ret = soc_new_pcm(rtd, num); | |
1228 | if (ret < 0) { | |
1229 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1230 | return ret; | |
1231 | } | |
1232 | ||
1233 | /* add platform data for AC97 devices */ | |
1234 | if (rtd->codec_dai->driver->ac97_control) | |
1235 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
fe3e78e0 | 1240 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1241 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1242 | { | |
1243 | int ret; | |
1244 | ||
fe3e78e0 MB |
1245 | /* Only instantiate AC97 if not already done by the adaptor |
1246 | * for the generic AC97 subsystem. | |
1247 | */ | |
f0fba2ad | 1248 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1249 | /* |
1250 | * It is possible that the AC97 device is already registered to | |
1251 | * the device subsystem. This happens when the device is created | |
1252 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1253 | * is the generic AC97 glue but others migh emerge. | |
1254 | * | |
1255 | * In those cases we don't try to register the device again. | |
1256 | */ | |
1257 | if (!rtd->codec->ac97_created) | |
1258 | return 0; | |
f0fba2ad LG |
1259 | |
1260 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1261 | if (ret < 0) { |
1262 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1263 | return ret; |
fe3e78e0 | 1264 | } |
f0fba2ad LG |
1265 | |
1266 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1267 | } |
f0fba2ad LG |
1268 | return 0; |
1269 | } | |
1270 | ||
1271 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1272 | { | |
1273 | if (codec->ac97_registered) { | |
1274 | soc_ac97_dev_unregister(codec); | |
1275 | codec->ac97_registered = 0; | |
1276 | } | |
1277 | } | |
fe3e78e0 MB |
1278 | #endif |
1279 | ||
2eea392d JN |
1280 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1281 | { | |
1282 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1283 | struct snd_soc_codec *codec; |
676ad98a | 1284 | int ret = -ENODEV; |
2eea392d JN |
1285 | |
1286 | /* find CODEC from registered CODECs*/ | |
1287 | list_for_each_entry(codec, &codec_list, list) { | |
1288 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1289 | if (codec->probed) { | |
1290 | dev_err(codec->dev, | |
1291 | "asoc: codec already probed"); | |
1292 | ret = -EBUSY; | |
1293 | goto out; | |
1294 | } | |
676ad98a | 1295 | goto found; |
2eea392d JN |
1296 | } |
1297 | } | |
676ad98a JN |
1298 | /* codec not found */ |
1299 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1300 | goto out; | |
2eea392d | 1301 | |
676ad98a | 1302 | found: |
589c3563 | 1303 | ret = soc_probe_codec(card, codec); |
2eea392d | 1304 | if (ret < 0) |
589c3563 | 1305 | return ret; |
2eea392d | 1306 | |
589c3563 | 1307 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1308 | |
1309 | out: | |
1310 | return ret; | |
1311 | } | |
1312 | ||
1313 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1314 | { | |
1315 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1316 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1317 | |
1318 | /* unregister the rtd device */ | |
1319 | if (rtd->dev_registered) { | |
36ae1a96 MB |
1320 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
1321 | device_del(rtd->dev); | |
2eea392d JN |
1322 | rtd->dev_registered = 0; |
1323 | } | |
1324 | ||
589c3563 JN |
1325 | if (codec && codec->probed) |
1326 | soc_remove_codec(codec); | |
2eea392d JN |
1327 | } |
1328 | ||
fdf0f54d DP |
1329 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1330 | enum snd_soc_compress_type compress_type) | |
1331 | { | |
1332 | int ret; | |
1333 | ||
1334 | if (codec->cache_init) | |
1335 | return 0; | |
1336 | ||
1337 | /* override the compress_type if necessary */ | |
1338 | if (compress_type && codec->compress_type != compress_type) | |
1339 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1340 | ret = snd_soc_cache_init(codec); |
1341 | if (ret < 0) { | |
1342 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1343 | ret); | |
1344 | return ret; | |
1345 | } | |
1346 | codec->cache_init = 1; | |
1347 | return 0; | |
1348 | } | |
1349 | ||
f0fba2ad LG |
1350 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1351 | { | |
fdf0f54d DP |
1352 | struct snd_soc_codec *codec; |
1353 | struct snd_soc_codec_conf *codec_conf; | |
1354 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1355 | struct snd_soc_dai_link *dai_link; |
0168bf0d | 1356 | int ret, i, order; |
fe3e78e0 | 1357 | |
f0fba2ad | 1358 | mutex_lock(&card->mutex); |
dbe21408 | 1359 | |
f0fba2ad LG |
1360 | if (card->instantiated) { |
1361 | mutex_unlock(&card->mutex); | |
1362 | return; | |
1363 | } | |
fe3e78e0 | 1364 | |
f0fba2ad LG |
1365 | /* bind DAIs */ |
1366 | for (i = 0; i < card->num_links; i++) | |
1367 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1368 | |
f0fba2ad LG |
1369 | /* bind completed ? */ |
1370 | if (card->num_rtd != card->num_links) { | |
1371 | mutex_unlock(&card->mutex); | |
1372 | return; | |
1373 | } | |
435c5e25 | 1374 | |
fdf0f54d DP |
1375 | /* initialize the register cache for each available codec */ |
1376 | list_for_each_entry(codec, &codec_list, list) { | |
1377 | if (codec->cache_init) | |
1378 | continue; | |
861f2faf DP |
1379 | /* by default we don't override the compress_type */ |
1380 | compress_type = 0; | |
fdf0f54d DP |
1381 | /* check to see if we need to override the compress_type */ |
1382 | for (i = 0; i < card->num_configs; ++i) { | |
1383 | codec_conf = &card->codec_conf[i]; | |
1384 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1385 | compress_type = codec_conf->compress_type; | |
1386 | if (compress_type && compress_type | |
1387 | != codec->compress_type) | |
1388 | break; | |
1389 | } | |
1390 | } | |
fdf0f54d DP |
1391 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1392 | if (ret < 0) { | |
1393 | mutex_unlock(&card->mutex); | |
1394 | return; | |
1395 | } | |
1396 | } | |
1397 | ||
f0fba2ad LG |
1398 | /* card bind complete so register a sound card */ |
1399 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1400 | card->owner, 0, &card->snd_card); | |
1401 | if (ret < 0) { | |
1402 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1403 | card->name); | |
1404 | mutex_unlock(&card->mutex); | |
1405 | return; | |
1406 | } | |
1407 | card->snd_card->dev = card->dev; | |
1408 | ||
e37a4970 MB |
1409 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1410 | card->dapm.dev = card->dev; | |
1411 | card->dapm.card = card; | |
1412 | list_add(&card->dapm.list, &card->dapm_list); | |
1413 | ||
d5d1e0be LPC |
1414 | #ifdef CONFIG_DEBUG_FS |
1415 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1416 | #endif | |
1417 | ||
88ee1c61 | 1418 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1419 | /* deferred resume work */ |
1420 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1421 | #endif | |
db2a4165 | 1422 | |
9a841ebb MB |
1423 | if (card->dapm_widgets) |
1424 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1425 | card->num_dapm_widgets); | |
1426 | ||
f0fba2ad LG |
1427 | /* initialise the sound card only once */ |
1428 | if (card->probe) { | |
e7361ec4 | 1429 | ret = card->probe(card); |
f0fba2ad LG |
1430 | if (ret < 0) |
1431 | goto card_probe_error; | |
1432 | } | |
fe3e78e0 | 1433 | |
0168bf0d LG |
1434 | /* early DAI link probe */ |
1435 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1436 | order++) { | |
1437 | for (i = 0; i < card->num_links; i++) { | |
1438 | ret = soc_probe_dai_link(card, i, order); | |
1439 | if (ret < 0) { | |
1440 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1441 | card->name, ret); |
0168bf0d LG |
1442 | goto probe_dai_err; |
1443 | } | |
f0fba2ad LG |
1444 | } |
1445 | } | |
db2a4165 | 1446 | |
2eea392d JN |
1447 | for (i = 0; i < card->num_aux_devs; i++) { |
1448 | ret = soc_probe_aux_dev(card, i); | |
1449 | if (ret < 0) { | |
1450 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1451 | card->name, ret); | |
1452 | goto probe_aux_dev_err; | |
1453 | } | |
1454 | } | |
1455 | ||
b7af1daf MB |
1456 | /* We should have a non-codec control add function but we don't */ |
1457 | if (card->controls) | |
1458 | snd_soc_add_controls(list_first_entry(&card->codec_dev_list, | |
1459 | struct snd_soc_codec, | |
1460 | card_list), | |
1461 | card->controls, | |
1462 | card->num_controls); | |
1463 | ||
b8ad29de MB |
1464 | if (card->dapm_routes) |
1465 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1466 | card->num_dapm_routes); | |
1467 | ||
b90d2f90 MB |
1468 | snd_soc_dapm_new_widgets(&card->dapm); |
1469 | ||
75d9ac46 MB |
1470 | for (i = 0; i < card->num_links; i++) { |
1471 | dai_link = &card->dai_link[i]; | |
1472 | ||
1473 | if (dai_link->dai_fmt) { | |
1474 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, | |
1475 | dai_link->dai_fmt); | |
1476 | if (ret != 0) | |
1477 | dev_warn(card->rtd[i].codec_dai->dev, | |
1478 | "Failed to set DAI format: %d\n", | |
1479 | ret); | |
1480 | ||
1481 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
1482 | dai_link->dai_fmt); | |
1483 | if (ret != 0) | |
1484 | dev_warn(card->rtd[i].cpu_dai->dev, | |
1485 | "Failed to set DAI format: %d\n", | |
1486 | ret); | |
1487 | } | |
1488 | } | |
1489 | ||
f0fba2ad | 1490 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1491 | "%s", card->name); |
22de71ba LG |
1492 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1493 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1494 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1495 | "%s", card->driver_name ? card->driver_name : card->name); | |
1496 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1497 | switch (card->snd_card->driver[i]) { | |
1498 | case '_': | |
1499 | case '-': | |
1500 | case '\0': | |
1501 | break; | |
1502 | default: | |
1503 | if (!isalnum(card->snd_card->driver[i])) | |
1504 | card->snd_card->driver[i] = '_'; | |
1505 | break; | |
1506 | } | |
1507 | } | |
f0fba2ad | 1508 | |
28e9ad92 MB |
1509 | if (card->late_probe) { |
1510 | ret = card->late_probe(card); | |
1511 | if (ret < 0) { | |
1512 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1513 | card->name, ret); | |
1514 | goto probe_aux_dev_err; | |
1515 | } | |
1516 | } | |
1517 | ||
2dc00213 MB |
1518 | snd_soc_dapm_new_widgets(&card->dapm); |
1519 | ||
1633281b | 1520 | if (card->fully_routed) |
b05d8dc1 | 1521 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1522 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1523 | ||
f0fba2ad LG |
1524 | ret = snd_card_register(card->snd_card); |
1525 | if (ret < 0) { | |
1526 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1527 | goto probe_aux_dev_err; |
db2a4165 FM |
1528 | } |
1529 | ||
f0fba2ad LG |
1530 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1531 | /* register any AC97 codecs */ | |
1532 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1533 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1534 | if (ret < 0) { | |
1535 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1536 | while (--i >= 0) | |
7d8316df | 1537 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1538 | goto probe_aux_dev_err; |
f0fba2ad | 1539 | } |
6b3ed785 | 1540 | } |
f0fba2ad LG |
1541 | #endif |
1542 | ||
1543 | card->instantiated = 1; | |
4f4c0072 | 1544 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad LG |
1545 | mutex_unlock(&card->mutex); |
1546 | return; | |
1547 | ||
2eea392d JN |
1548 | probe_aux_dev_err: |
1549 | for (i = 0; i < card->num_aux_devs; i++) | |
1550 | soc_remove_aux_dev(card, i); | |
1551 | ||
f0fba2ad | 1552 | probe_dai_err: |
0671fd8e | 1553 | soc_remove_dai_links(card); |
f0fba2ad LG |
1554 | |
1555 | card_probe_error: | |
87506549 | 1556 | if (card->remove) |
e7361ec4 | 1557 | card->remove(card); |
f0fba2ad LG |
1558 | |
1559 | snd_card_free(card->snd_card); | |
1560 | ||
1561 | mutex_unlock(&card->mutex); | |
435c5e25 | 1562 | } |
db2a4165 | 1563 | |
435c5e25 | 1564 | /* |
421f91d2 | 1565 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1566 | * client_mutex. |
1567 | */ | |
1568 | static void snd_soc_instantiate_cards(void) | |
1569 | { | |
1570 | struct snd_soc_card *card; | |
1571 | list_for_each_entry(card, &card_list, list) | |
1572 | snd_soc_instantiate_card(card); | |
1573 | } | |
1574 | ||
1575 | /* probes a new socdev */ | |
1576 | static int soc_probe(struct platform_device *pdev) | |
1577 | { | |
f0fba2ad | 1578 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1579 | int ret = 0; |
435c5e25 | 1580 | |
70a7ca34 VK |
1581 | /* |
1582 | * no card, so machine driver should be registering card | |
1583 | * we should not be here in that case so ret error | |
1584 | */ | |
1585 | if (!card) | |
1586 | return -EINVAL; | |
1587 | ||
435c5e25 MB |
1588 | /* Bodge while we unpick instantiation */ |
1589 | card->dev = &pdev->dev; | |
f0fba2ad | 1590 | |
435c5e25 MB |
1591 | ret = snd_soc_register_card(card); |
1592 | if (ret != 0) { | |
1593 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1594 | return ret; | |
1595 | } | |
1596 | ||
1597 | return 0; | |
db2a4165 FM |
1598 | } |
1599 | ||
b0e26485 | 1600 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1601 | { |
1602 | int i; | |
db2a4165 | 1603 | |
b0e26485 VK |
1604 | /* make sure any delayed work runs */ |
1605 | for (i = 0; i < card->num_rtd; i++) { | |
1606 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1607 | flush_delayed_work_sync(&rtd->delayed_work); | |
1608 | } | |
914dc182 | 1609 | |
b0e26485 VK |
1610 | /* remove auxiliary devices */ |
1611 | for (i = 0; i < card->num_aux_devs; i++) | |
1612 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1613 | |
b0e26485 | 1614 | /* remove and free each DAI */ |
0671fd8e | 1615 | soc_remove_dai_links(card); |
2eea392d | 1616 | |
b0e26485 | 1617 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1618 | |
b0e26485 VK |
1619 | /* remove the card */ |
1620 | if (card->remove) | |
e7361ec4 | 1621 | card->remove(card); |
a6052154 | 1622 | |
0aaae527 LPC |
1623 | snd_soc_dapm_free(&card->dapm); |
1624 | ||
b0e26485 VK |
1625 | kfree(card->rtd); |
1626 | snd_card_free(card->snd_card); | |
1627 | return 0; | |
1628 | ||
1629 | } | |
1630 | ||
1631 | /* removes a socdev */ | |
1632 | static int soc_remove(struct platform_device *pdev) | |
1633 | { | |
1634 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1635 | |
c5af3a2e | 1636 | snd_soc_unregister_card(card); |
db2a4165 FM |
1637 | return 0; |
1638 | } | |
1639 | ||
6f8ab4ac | 1640 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1641 | { |
6f8ab4ac | 1642 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1643 | int i; |
51737470 MB |
1644 | |
1645 | if (!card->instantiated) | |
416356fc | 1646 | return 0; |
51737470 MB |
1647 | |
1648 | /* Flush out pmdown_time work - we actually do want to run it | |
1649 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1650 | for (i = 0; i < card->num_rtd; i++) { |
1651 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1652 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1653 | } |
51737470 | 1654 | |
f0fba2ad | 1655 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1656 | |
1657 | return 0; | |
51737470 | 1658 | } |
6f8ab4ac | 1659 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1660 | |
6f8ab4ac MB |
1661 | const struct dev_pm_ops snd_soc_pm_ops = { |
1662 | .suspend = snd_soc_suspend, | |
1663 | .resume = snd_soc_resume, | |
1664 | .poweroff = snd_soc_poweroff, | |
416356fc | 1665 | }; |
deb2607e | 1666 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1667 | |
db2a4165 FM |
1668 | /* ASoC platform driver */ |
1669 | static struct platform_driver soc_driver = { | |
1670 | .driver = { | |
1671 | .name = "soc-audio", | |
8b45a209 | 1672 | .owner = THIS_MODULE, |
6f8ab4ac | 1673 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1674 | }, |
1675 | .probe = soc_probe, | |
1676 | .remove = soc_remove, | |
db2a4165 FM |
1677 | }; |
1678 | ||
096e49d5 MB |
1679 | /** |
1680 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1681 | * | |
1682 | * @codec: CODEC to query. | |
1683 | * @reg: Register to query. | |
1684 | * | |
1685 | * Boolean function indiciating if a CODEC register is volatile. | |
1686 | */ | |
181e055e MB |
1687 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1688 | unsigned int reg) | |
096e49d5 | 1689 | { |
1500b7b5 DP |
1690 | if (codec->volatile_register) |
1691 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1692 | else |
1693 | return 0; | |
1694 | } | |
1695 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1696 | ||
239c9706 DP |
1697 | /** |
1698 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1699 | * | |
1700 | * @codec: CODEC to query. | |
1701 | * @reg: Register to query. | |
1702 | * | |
1703 | * Boolean function indicating if a CODEC register is readable. | |
1704 | */ | |
1705 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1706 | unsigned int reg) | |
1707 | { | |
1708 | if (codec->readable_register) | |
1709 | return codec->readable_register(codec, reg); | |
1710 | else | |
63fa0a28 | 1711 | return 1; |
239c9706 DP |
1712 | } |
1713 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1714 | ||
1715 | /** | |
1716 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1717 | * | |
1718 | * @codec: CODEC to query. | |
1719 | * @reg: Register to query. | |
1720 | * | |
1721 | * Boolean function indicating if a CODEC register is writable. | |
1722 | */ | |
1723 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1724 | unsigned int reg) | |
1725 | { | |
1726 | if (codec->writable_register) | |
1727 | return codec->writable_register(codec, reg); | |
1728 | else | |
63fa0a28 | 1729 | return 1; |
239c9706 DP |
1730 | } |
1731 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1732 | ||
f1442bc1 LG |
1733 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1734 | unsigned int reg) | |
1735 | { | |
1736 | unsigned int ret; | |
1737 | ||
1738 | if (!platform->driver->read) { | |
1739 | dev_err(platform->dev, "platform has no read back\n"); | |
1740 | return -1; | |
1741 | } | |
1742 | ||
1743 | ret = platform->driver->read(platform, reg); | |
1744 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1745 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1746 | |
1747 | return ret; | |
1748 | } | |
1749 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1750 | ||
1751 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1752 | unsigned int reg, unsigned int val) | |
1753 | { | |
1754 | if (!platform->driver->write) { | |
1755 | dev_err(platform->dev, "platform has no write back\n"); | |
1756 | return -1; | |
1757 | } | |
1758 | ||
1759 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1760 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1761 | return platform->driver->write(platform, reg, val); |
1762 | } | |
1763 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1764 | ||
db2a4165 FM |
1765 | /** |
1766 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1767 | * @codec: audio codec | |
1768 | * @ops: AC97 bus operations | |
1769 | * @num: AC97 codec number | |
1770 | * | |
1771 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1772 | */ | |
1773 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1774 | struct snd_ac97_bus_ops *ops, int num) | |
1775 | { | |
1776 | mutex_lock(&codec->mutex); | |
1777 | ||
1778 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1779 | if (codec->ac97 == NULL) { | |
1780 | mutex_unlock(&codec->mutex); | |
1781 | return -ENOMEM; | |
1782 | } | |
1783 | ||
1784 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1785 | if (codec->ac97->bus == NULL) { | |
1786 | kfree(codec->ac97); | |
1787 | codec->ac97 = NULL; | |
1788 | mutex_unlock(&codec->mutex); | |
1789 | return -ENOMEM; | |
1790 | } | |
1791 | ||
1792 | codec->ac97->bus->ops = ops; | |
1793 | codec->ac97->num = num; | |
0562f788 MW |
1794 | |
1795 | /* | |
1796 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1797 | * device will be registered with the device subsystem later on. | |
1798 | */ | |
1799 | codec->ac97_created = 1; | |
1800 | ||
db2a4165 FM |
1801 | mutex_unlock(&codec->mutex); |
1802 | return 0; | |
1803 | } | |
1804 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1805 | ||
1806 | /** | |
1807 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1808 | * @codec: audio codec | |
1809 | * | |
1810 | * Frees AC97 codec device resources. | |
1811 | */ | |
1812 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1813 | { | |
1814 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1815 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1816 | soc_unregister_ac97_dai_link(codec); | |
1817 | #endif | |
db2a4165 FM |
1818 | kfree(codec->ac97->bus); |
1819 | kfree(codec->ac97); | |
1820 | codec->ac97 = NULL; | |
0562f788 | 1821 | codec->ac97_created = 0; |
db2a4165 FM |
1822 | mutex_unlock(&codec->mutex); |
1823 | } | |
1824 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1825 | ||
c3753707 MB |
1826 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1827 | { | |
1828 | unsigned int ret; | |
1829 | ||
c3acec26 | 1830 | ret = codec->read(codec, reg); |
c3753707 | 1831 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1832 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1833 | |
1834 | return ret; | |
1835 | } | |
1836 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1837 | ||
1838 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1839 | unsigned int reg, unsigned int val) | |
1840 | { | |
1841 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 1842 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 1843 | return codec->write(codec, reg, val); |
c3753707 MB |
1844 | } |
1845 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1846 | ||
5fb609d4 DP |
1847 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
1848 | unsigned int reg, const void *data, size_t len) | |
1849 | { | |
1850 | return codec->bulk_write_raw(codec, reg, data, len); | |
1851 | } | |
1852 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
1853 | ||
db2a4165 FM |
1854 | /** |
1855 | * snd_soc_update_bits - update codec register bits | |
1856 | * @codec: audio codec | |
1857 | * @reg: codec register | |
1858 | * @mask: register mask | |
1859 | * @value: new value | |
1860 | * | |
1861 | * Writes new register value. | |
1862 | * | |
180c329d | 1863 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
1864 | */ |
1865 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1866 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1867 | { |
1868 | int change; | |
46f5822f | 1869 | unsigned int old, new; |
180c329d TT |
1870 | int ret; |
1871 | ||
1872 | ret = snd_soc_read(codec, reg); | |
1873 | if (ret < 0) | |
1874 | return ret; | |
db2a4165 | 1875 | |
180c329d | 1876 | old = ret; |
78bf3c9a | 1877 | new = (old & ~mask) | (value & mask); |
db2a4165 | 1878 | change = old != new; |
180c329d TT |
1879 | if (change) { |
1880 | ret = snd_soc_write(codec, reg, new); | |
1881 | if (ret < 0) | |
1882 | return ret; | |
1883 | } | |
db2a4165 | 1884 | |
db2a4165 FM |
1885 | return change; |
1886 | } | |
1887 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1888 | ||
6c508c62 EN |
1889 | /** |
1890 | * snd_soc_update_bits_locked - update codec register bits | |
1891 | * @codec: audio codec | |
1892 | * @reg: codec register | |
1893 | * @mask: register mask | |
1894 | * @value: new value | |
1895 | * | |
1896 | * Writes new register value, and takes the codec mutex. | |
1897 | * | |
1898 | * Returns 1 for change else 0. | |
1899 | */ | |
dd1b3d53 MB |
1900 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1901 | unsigned short reg, unsigned int mask, | |
1902 | unsigned int value) | |
6c508c62 EN |
1903 | { |
1904 | int change; | |
1905 | ||
1906 | mutex_lock(&codec->mutex); | |
1907 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1908 | mutex_unlock(&codec->mutex); | |
1909 | ||
1910 | return change; | |
1911 | } | |
dd1b3d53 | 1912 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1913 | |
db2a4165 FM |
1914 | /** |
1915 | * snd_soc_test_bits - test register for change | |
1916 | * @codec: audio codec | |
1917 | * @reg: codec register | |
1918 | * @mask: register mask | |
1919 | * @value: new value | |
1920 | * | |
1921 | * Tests a register with a new value and checks if the new value is | |
1922 | * different from the old value. | |
1923 | * | |
1924 | * Returns 1 for change else 0. | |
1925 | */ | |
1926 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1927 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1928 | { |
1929 | int change; | |
46f5822f | 1930 | unsigned int old, new; |
db2a4165 | 1931 | |
db2a4165 FM |
1932 | old = snd_soc_read(codec, reg); |
1933 | new = (old & ~mask) | value; | |
1934 | change = old != new; | |
db2a4165 FM |
1935 | |
1936 | return change; | |
1937 | } | |
1938 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1939 | ||
db2a4165 FM |
1940 | /** |
1941 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1942 | * @substream: the pcm substream | |
1943 | * @hw: the hardware parameters | |
1944 | * | |
1945 | * Sets the substream runtime hardware parameters. | |
1946 | */ | |
1947 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1948 | const struct snd_pcm_hardware *hw) | |
1949 | { | |
1950 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1951 | runtime->hw.info = hw->info; | |
1952 | runtime->hw.formats = hw->formats; | |
1953 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1954 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1955 | runtime->hw.periods_min = hw->periods_min; | |
1956 | runtime->hw.periods_max = hw->periods_max; | |
1957 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1958 | runtime->hw.fifo_size = hw->fifo_size; | |
1959 | return 0; | |
1960 | } | |
1961 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1962 | ||
1963 | /** | |
1964 | * snd_soc_cnew - create new control | |
1965 | * @_template: control template | |
1966 | * @data: control private data | |
ac11a2b3 | 1967 | * @long_name: control long name |
efb7ac3f | 1968 | * @prefix: control name prefix |
db2a4165 FM |
1969 | * |
1970 | * Create a new mixer control from a template control. | |
1971 | * | |
1972 | * Returns 0 for success, else error. | |
1973 | */ | |
1974 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
1975 | void *data, char *long_name, |
1976 | const char *prefix) | |
db2a4165 FM |
1977 | { |
1978 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1979 | struct snd_kcontrol *kcontrol; |
1980 | char *name = NULL; | |
1981 | int name_len; | |
db2a4165 FM |
1982 | |
1983 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1984 | template.index = 0; |
1985 | ||
efb7ac3f MB |
1986 | if (!long_name) |
1987 | long_name = template.name; | |
1988 | ||
1989 | if (prefix) { | |
1990 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 1991 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
1992 | if (!name) |
1993 | return NULL; | |
1994 | ||
1995 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
1996 | ||
1997 | template.name = name; | |
1998 | } else { | |
1999 | template.name = long_name; | |
2000 | } | |
2001 | ||
2002 | kcontrol = snd_ctl_new1(&template, data); | |
2003 | ||
2004 | kfree(name); | |
2005 | ||
2006 | return kcontrol; | |
db2a4165 FM |
2007 | } |
2008 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2009 | ||
3e8e1952 IM |
2010 | /** |
2011 | * snd_soc_add_controls - add an array of controls to a codec. | |
2012 | * Convienience function to add a list of controls. Many codecs were | |
2013 | * duplicating this code. | |
2014 | * | |
2015 | * @codec: codec to add controls to | |
2016 | * @controls: array of controls to add | |
2017 | * @num_controls: number of elements in the array | |
2018 | * | |
2019 | * Return 0 for success, else error. | |
2020 | */ | |
2021 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2022 | const struct snd_kcontrol_new *controls, int num_controls) | |
2023 | { | |
f0fba2ad | 2024 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2025 | int err, i; |
2026 | ||
2027 | for (i = 0; i < num_controls; i++) { | |
2028 | const struct snd_kcontrol_new *control = &controls[i]; | |
efb7ac3f MB |
2029 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, |
2030 | control->name, | |
2031 | codec->name_prefix)); | |
3e8e1952 | 2032 | if (err < 0) { |
082100dc | 2033 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
efb7ac3f | 2034 | codec->name, control->name, err); |
3e8e1952 IM |
2035 | return err; |
2036 | } | |
2037 | } | |
2038 | ||
2039 | return 0; | |
2040 | } | |
2041 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2042 | ||
a491a5c8 LG |
2043 | /** |
2044 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
2045 | * Convienience function to add a list of controls. | |
2046 | * | |
2047 | * @platform: platform to add controls to | |
2048 | * @controls: array of controls to add | |
2049 | * @num_controls: number of elements in the array | |
2050 | * | |
2051 | * Return 0 for success, else error. | |
2052 | */ | |
2053 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2054 | const struct snd_kcontrol_new *controls, int num_controls) | |
2055 | { | |
2056 | struct snd_card *card = platform->card->snd_card; | |
2057 | int err, i; | |
2058 | ||
2059 | for (i = 0; i < num_controls; i++) { | |
2060 | const struct snd_kcontrol_new *control = &controls[i]; | |
2061 | err = snd_ctl_add(card, snd_soc_cnew(control, platform, | |
2062 | control->name, NULL)); | |
2063 | if (err < 0) { | |
2064 | dev_err(platform->dev, "Failed to add %s %d\n",control->name, err); | |
2065 | return err; | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | return 0; | |
2070 | } | |
2071 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2072 | ||
db2a4165 FM |
2073 | /** |
2074 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2075 | * @kcontrol: mixer control | |
2076 | * @uinfo: control element information | |
2077 | * | |
2078 | * Callback to provide information about a double enumerated | |
2079 | * mixer control. | |
2080 | * | |
2081 | * Returns 0 for success. | |
2082 | */ | |
2083 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2084 | struct snd_ctl_elem_info *uinfo) | |
2085 | { | |
2086 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2087 | ||
2088 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2089 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2090 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2091 | |
f8ba0b7b JS |
2092 | if (uinfo->value.enumerated.item > e->max - 1) |
2093 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2094 | strcpy(uinfo->value.enumerated.name, |
2095 | e->texts[uinfo->value.enumerated.item]); | |
2096 | return 0; | |
2097 | } | |
2098 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2099 | ||
2100 | /** | |
2101 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2102 | * @kcontrol: mixer control | |
ac11a2b3 | 2103 | * @ucontrol: control element information |
db2a4165 FM |
2104 | * |
2105 | * Callback to get the value of a double enumerated mixer. | |
2106 | * | |
2107 | * Returns 0 for success. | |
2108 | */ | |
2109 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2110 | struct snd_ctl_elem_value *ucontrol) | |
2111 | { | |
2112 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2113 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2114 | unsigned int val, bitmask; |
db2a4165 | 2115 | |
f8ba0b7b | 2116 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2117 | ; |
2118 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2119 | ucontrol->value.enumerated.item[0] |
2120 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2121 | if (e->shift_l != e->shift_r) |
2122 | ucontrol->value.enumerated.item[1] = | |
2123 | (val >> e->shift_r) & (bitmask - 1); | |
2124 | ||
2125 | return 0; | |
2126 | } | |
2127 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2128 | ||
2129 | /** | |
2130 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2131 | * @kcontrol: mixer control | |
ac11a2b3 | 2132 | * @ucontrol: control element information |
db2a4165 FM |
2133 | * |
2134 | * Callback to set the value of a double enumerated mixer. | |
2135 | * | |
2136 | * Returns 0 for success. | |
2137 | */ | |
2138 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2139 | struct snd_ctl_elem_value *ucontrol) | |
2140 | { | |
2141 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2142 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2143 | unsigned int val; |
2144 | unsigned int mask, bitmask; | |
db2a4165 | 2145 | |
f8ba0b7b | 2146 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2147 | ; |
f8ba0b7b | 2148 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2149 | return -EINVAL; |
2150 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2151 | mask = (bitmask - 1) << e->shift_l; | |
2152 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2153 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2154 | return -EINVAL; |
2155 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2156 | mask |= (bitmask - 1) << e->shift_r; | |
2157 | } | |
2158 | ||
6c508c62 | 2159 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2160 | } |
2161 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2162 | ||
2e72f8e3 PU |
2163 | /** |
2164 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2165 | * @kcontrol: mixer control | |
2166 | * @ucontrol: control element information | |
2167 | * | |
2168 | * Callback to get the value of a double semi enumerated mixer. | |
2169 | * | |
2170 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2171 | * used for handling bitfield coded enumeration for example. | |
2172 | * | |
2173 | * Returns 0 for success. | |
2174 | */ | |
2175 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2176 | struct snd_ctl_elem_value *ucontrol) | |
2177 | { | |
2178 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2179 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2180 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2181 | |
2182 | reg_val = snd_soc_read(codec, e->reg); | |
2183 | val = (reg_val >> e->shift_l) & e->mask; | |
2184 | for (mux = 0; mux < e->max; mux++) { | |
2185 | if (val == e->values[mux]) | |
2186 | break; | |
2187 | } | |
2188 | ucontrol->value.enumerated.item[0] = mux; | |
2189 | if (e->shift_l != e->shift_r) { | |
2190 | val = (reg_val >> e->shift_r) & e->mask; | |
2191 | for (mux = 0; mux < e->max; mux++) { | |
2192 | if (val == e->values[mux]) | |
2193 | break; | |
2194 | } | |
2195 | ucontrol->value.enumerated.item[1] = mux; | |
2196 | } | |
2197 | ||
2198 | return 0; | |
2199 | } | |
2200 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2201 | ||
2202 | /** | |
2203 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2204 | * @kcontrol: mixer control | |
2205 | * @ucontrol: control element information | |
2206 | * | |
2207 | * Callback to set the value of a double semi enumerated mixer. | |
2208 | * | |
2209 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2210 | * used for handling bitfield coded enumeration for example. | |
2211 | * | |
2212 | * Returns 0 for success. | |
2213 | */ | |
2214 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2215 | struct snd_ctl_elem_value *ucontrol) | |
2216 | { | |
2217 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2218 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2219 | unsigned int val; |
2220 | unsigned int mask; | |
2e72f8e3 PU |
2221 | |
2222 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2223 | return -EINVAL; | |
2224 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2225 | mask = e->mask << e->shift_l; | |
2226 | if (e->shift_l != e->shift_r) { | |
2227 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2228 | return -EINVAL; | |
2229 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2230 | mask |= e->mask << e->shift_r; | |
2231 | } | |
2232 | ||
6c508c62 | 2233 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2234 | } |
2235 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2236 | ||
db2a4165 FM |
2237 | /** |
2238 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2239 | * @kcontrol: mixer control | |
2240 | * @uinfo: control element information | |
2241 | * | |
2242 | * Callback to provide information about an external enumerated | |
2243 | * single mixer. | |
2244 | * | |
2245 | * Returns 0 for success. | |
2246 | */ | |
2247 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2248 | struct snd_ctl_elem_info *uinfo) | |
2249 | { | |
2250 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2251 | ||
2252 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2253 | uinfo->count = 1; | |
f8ba0b7b | 2254 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2255 | |
f8ba0b7b JS |
2256 | if (uinfo->value.enumerated.item > e->max - 1) |
2257 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2258 | strcpy(uinfo->value.enumerated.name, |
2259 | e->texts[uinfo->value.enumerated.item]); | |
2260 | return 0; | |
2261 | } | |
2262 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2263 | ||
2264 | /** | |
2265 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2266 | * @kcontrol: mixer control | |
2267 | * @uinfo: control element information | |
2268 | * | |
2269 | * Callback to provide information about a single external mixer control. | |
2270 | * | |
2271 | * Returns 0 for success. | |
2272 | */ | |
2273 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2274 | struct snd_ctl_elem_info *uinfo) | |
2275 | { | |
a7a4ac86 PZ |
2276 | int max = kcontrol->private_value; |
2277 | ||
fd5dfad9 | 2278 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2279 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2280 | else | |
2281 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2282 | |
db2a4165 FM |
2283 | uinfo->count = 1; |
2284 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2285 | uinfo->value.integer.max = max; |
db2a4165 FM |
2286 | return 0; |
2287 | } | |
2288 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2289 | ||
db2a4165 FM |
2290 | /** |
2291 | * snd_soc_info_volsw - single mixer info callback | |
2292 | * @kcontrol: mixer control | |
2293 | * @uinfo: control element information | |
2294 | * | |
e8f5a103 PU |
2295 | * Callback to provide information about a single mixer control, or a double |
2296 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2297 | * |
2298 | * Returns 0 for success. | |
2299 | */ | |
2300 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2301 | struct snd_ctl_elem_info *uinfo) | |
2302 | { | |
4eaa9819 JS |
2303 | struct soc_mixer_control *mc = |
2304 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2305 | int platform_max; |
db2a4165 | 2306 | |
d11bb4a9 PU |
2307 | if (!mc->platform_max) |
2308 | mc->platform_max = mc->max; | |
2309 | platform_max = mc->platform_max; | |
2310 | ||
2311 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2312 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2313 | else | |
2314 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2315 | ||
e8f5a103 | 2316 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2317 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2318 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2319 | return 0; |
2320 | } | |
2321 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2322 | ||
2323 | /** | |
2324 | * snd_soc_get_volsw - single mixer get callback | |
2325 | * @kcontrol: mixer control | |
ac11a2b3 | 2326 | * @ucontrol: control element information |
db2a4165 | 2327 | * |
f7915d99 PU |
2328 | * Callback to get the value of a single mixer control, or a double mixer |
2329 | * control that spans 2 registers. | |
db2a4165 FM |
2330 | * |
2331 | * Returns 0 for success. | |
2332 | */ | |
2333 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2334 | struct snd_ctl_elem_value *ucontrol) | |
2335 | { | |
4eaa9819 JS |
2336 | struct soc_mixer_control *mc = |
2337 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2338 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2339 | unsigned int reg = mc->reg; |
f7915d99 | 2340 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2341 | unsigned int shift = mc->shift; |
2342 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2343 | int max = mc->max; |
815ecf8d JS |
2344 | unsigned int mask = (1 << fls(max)) - 1; |
2345 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2346 | |
2347 | ucontrol->value.integer.value[0] = | |
2348 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2349 | if (invert) |
db2a4165 | 2350 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2351 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2352 | |
2353 | if (snd_soc_volsw_is_stereo(mc)) { | |
2354 | if (reg == reg2) | |
2355 | ucontrol->value.integer.value[1] = | |
2356 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2357 | else | |
2358 | ucontrol->value.integer.value[1] = | |
2359 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2360 | if (invert) | |
db2a4165 | 2361 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2362 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2363 | } |
2364 | ||
2365 | return 0; | |
2366 | } | |
2367 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2368 | ||
2369 | /** | |
2370 | * snd_soc_put_volsw - single mixer put callback | |
2371 | * @kcontrol: mixer control | |
ac11a2b3 | 2372 | * @ucontrol: control element information |
db2a4165 | 2373 | * |
974815ba PU |
2374 | * Callback to set the value of a single mixer control, or a double mixer |
2375 | * control that spans 2 registers. | |
db2a4165 FM |
2376 | * |
2377 | * Returns 0 for success. | |
2378 | */ | |
2379 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2380 | struct snd_ctl_elem_value *ucontrol) | |
2381 | { | |
4eaa9819 JS |
2382 | struct soc_mixer_control *mc = |
2383 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2384 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2385 | unsigned int reg = mc->reg; |
974815ba | 2386 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2387 | unsigned int shift = mc->shift; |
2388 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2389 | int max = mc->max; |
815ecf8d JS |
2390 | unsigned int mask = (1 << fls(max)) - 1; |
2391 | unsigned int invert = mc->invert; | |
974815ba PU |
2392 | int err; |
2393 | bool type_2r = 0; | |
2394 | unsigned int val2 = 0; | |
2395 | unsigned int val, val_mask; | |
db2a4165 FM |
2396 | |
2397 | val = (ucontrol->value.integer.value[0] & mask); | |
2398 | if (invert) | |
a7a4ac86 | 2399 | val = max - val; |
db2a4165 FM |
2400 | val_mask = mask << shift; |
2401 | val = val << shift; | |
974815ba | 2402 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2403 | val2 = (ucontrol->value.integer.value[1] & mask); |
2404 | if (invert) | |
a7a4ac86 | 2405 | val2 = max - val2; |
974815ba PU |
2406 | if (reg == reg2) { |
2407 | val_mask |= mask << rshift; | |
2408 | val |= val2 << rshift; | |
2409 | } else { | |
2410 | val2 = val2 << shift; | |
2411 | type_2r = 1; | |
2412 | } | |
db2a4165 | 2413 | } |
6c508c62 | 2414 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2415 | if (err < 0) |
db2a4165 FM |
2416 | return err; |
2417 | ||
974815ba PU |
2418 | if (type_2r) |
2419 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2420 | ||
db2a4165 FM |
2421 | return err; |
2422 | } | |
974815ba | 2423 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2424 | |
e13ac2e9 MB |
2425 | /** |
2426 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2427 | * @kcontrol: mixer control | |
2428 | * @uinfo: control element information | |
2429 | * | |
2430 | * Callback to provide information about a signed mixer control. | |
2431 | * | |
2432 | * Returns 0 for success. | |
2433 | */ | |
2434 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2435 | struct snd_ctl_elem_info *uinfo) | |
2436 | { | |
4eaa9819 JS |
2437 | struct soc_mixer_control *mc = |
2438 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2439 | int platform_max; |
4eaa9819 | 2440 | int min = mc->min; |
e13ac2e9 | 2441 | |
d11bb4a9 PU |
2442 | if (!mc->platform_max) |
2443 | mc->platform_max = mc->max; | |
2444 | platform_max = mc->platform_max; | |
2445 | ||
e13ac2e9 MB |
2446 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2447 | uinfo->count = 2; | |
2448 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2449 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2450 | return 0; |
2451 | } | |
2452 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2453 | ||
2454 | /** | |
2455 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2456 | * @kcontrol: mixer control | |
ac11a2b3 | 2457 | * @ucontrol: control element information |
e13ac2e9 MB |
2458 | * |
2459 | * Callback to get the value of a signed mixer control. | |
2460 | * | |
2461 | * Returns 0 for success. | |
2462 | */ | |
2463 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2464 | struct snd_ctl_elem_value *ucontrol) | |
2465 | { | |
4eaa9819 JS |
2466 | struct soc_mixer_control *mc = |
2467 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2468 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2469 | unsigned int reg = mc->reg; |
4eaa9819 | 2470 | int min = mc->min; |
e13ac2e9 MB |
2471 | int val = snd_soc_read(codec, reg); |
2472 | ||
2473 | ucontrol->value.integer.value[0] = | |
2474 | ((signed char)(val & 0xff))-min; | |
2475 | ucontrol->value.integer.value[1] = | |
2476 | ((signed char)((val >> 8) & 0xff))-min; | |
2477 | return 0; | |
2478 | } | |
2479 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2480 | ||
2481 | /** | |
2482 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2483 | * @kcontrol: mixer control | |
ac11a2b3 | 2484 | * @ucontrol: control element information |
e13ac2e9 MB |
2485 | * |
2486 | * Callback to set the value of a signed mixer control. | |
2487 | * | |
2488 | * Returns 0 for success. | |
2489 | */ | |
2490 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2491 | struct snd_ctl_elem_value *ucontrol) | |
2492 | { | |
4eaa9819 JS |
2493 | struct soc_mixer_control *mc = |
2494 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2495 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2496 | unsigned int reg = mc->reg; |
4eaa9819 | 2497 | int min = mc->min; |
46f5822f | 2498 | unsigned int val; |
e13ac2e9 MB |
2499 | |
2500 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2501 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2502 | ||
6c508c62 | 2503 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2504 | } |
2505 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2506 | ||
637d3847 PU |
2507 | /** |
2508 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2509 | * | |
2510 | * @codec: where to look for the control | |
2511 | * @name: Name of the control | |
2512 | * @max: new maximum limit | |
2513 | * | |
2514 | * Return 0 for success, else error. | |
2515 | */ | |
2516 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2517 | const char *name, int max) | |
2518 | { | |
f0fba2ad | 2519 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2520 | struct snd_kcontrol *kctl; |
2521 | struct soc_mixer_control *mc; | |
2522 | int found = 0; | |
2523 | int ret = -EINVAL; | |
2524 | ||
2525 | /* Sanity check for name and max */ | |
2526 | if (unlikely(!name || max <= 0)) | |
2527 | return -EINVAL; | |
2528 | ||
2529 | list_for_each_entry(kctl, &card->controls, list) { | |
2530 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2531 | found = 1; | |
2532 | break; | |
2533 | } | |
2534 | } | |
2535 | if (found) { | |
2536 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2537 | if (max <= mc->max) { | |
d11bb4a9 | 2538 | mc->platform_max = max; |
637d3847 PU |
2539 | ret = 0; |
2540 | } | |
2541 | } | |
2542 | return ret; | |
2543 | } | |
2544 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2545 | ||
b6f4bb38 | 2546 | /** |
2547 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2548 | * mixer info callback | |
2549 | * @kcontrol: mixer control | |
2550 | * @uinfo: control element information | |
2551 | * | |
2552 | * Returns 0 for success. | |
2553 | */ | |
2554 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2555 | struct snd_ctl_elem_info *uinfo) | |
2556 | { | |
2557 | struct soc_mixer_control *mc = | |
2558 | (struct soc_mixer_control *)kcontrol->private_value; | |
2559 | int max = mc->max; | |
2560 | int min = mc->min; | |
2561 | ||
2562 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2563 | uinfo->count = 2; | |
2564 | uinfo->value.integer.min = 0; | |
2565 | uinfo->value.integer.max = max-min; | |
2566 | ||
2567 | return 0; | |
2568 | } | |
2569 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2570 | ||
2571 | /** | |
2572 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2573 | * mixer get callback | |
2574 | * @kcontrol: mixer control | |
2575 | * @uinfo: control element information | |
2576 | * | |
2577 | * Returns 0 for success. | |
2578 | */ | |
2579 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2580 | struct snd_ctl_elem_value *ucontrol) | |
2581 | { | |
2582 | struct soc_mixer_control *mc = | |
2583 | (struct soc_mixer_control *)kcontrol->private_value; | |
2584 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2585 | unsigned int mask = (1<<mc->shift)-1; | |
2586 | int min = mc->min; | |
2587 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2588 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2589 | ||
20630c7f SL |
2590 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2591 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2592 | return 0; |
2593 | } | |
2594 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2595 | ||
2596 | /** | |
2597 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2598 | * mixer put callback | |
2599 | * @kcontrol: mixer control | |
2600 | * @uinfo: control element information | |
2601 | * | |
2602 | * Returns 0 for success. | |
2603 | */ | |
2604 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2605 | struct snd_ctl_elem_value *ucontrol) | |
2606 | { | |
2607 | struct soc_mixer_control *mc = | |
2608 | (struct soc_mixer_control *)kcontrol->private_value; | |
2609 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2610 | unsigned int mask = (1<<mc->shift)-1; | |
2611 | int min = mc->min; | |
2612 | int ret; | |
2613 | unsigned int val, valr, oval, ovalr; | |
2614 | ||
2615 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2616 | val &= mask; | |
2617 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2618 | valr &= mask; | |
2619 | ||
2620 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2621 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2622 | ||
2623 | ret = 0; | |
2624 | if (oval != val) { | |
2625 | ret = snd_soc_write(codec, mc->reg, val); | |
2626 | if (ret < 0) | |
f1df5aec | 2627 | return ret; |
b6f4bb38 | 2628 | } |
2629 | if (ovalr != valr) { | |
2630 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2631 | if (ret < 0) | |
f1df5aec | 2632 | return ret; |
b6f4bb38 | 2633 | } |
2634 | ||
2635 | return 0; | |
2636 | } | |
2637 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2638 | ||
8c6529db LG |
2639 | /** |
2640 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2641 | * @dai: DAI | |
2642 | * @clk_id: DAI specific clock ID | |
2643 | * @freq: new clock frequency in Hz | |
2644 | * @dir: new clock direction - input/output. | |
2645 | * | |
2646 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2647 | */ | |
2648 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2649 | unsigned int freq, int dir) | |
2650 | { | |
f0fba2ad LG |
2651 | if (dai->driver && dai->driver->ops->set_sysclk) |
2652 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2653 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2654 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2655 | freq, dir); |
8c6529db LG |
2656 | else |
2657 | return -EINVAL; | |
2658 | } | |
2659 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2660 | ||
ec4ee52a MB |
2661 | /** |
2662 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2663 | * @codec: CODEC | |
2664 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2665 | * @source: Source for the clock |
ec4ee52a MB |
2666 | * @freq: new clock frequency in Hz |
2667 | * @dir: new clock direction - input/output. | |
2668 | * | |
2669 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2670 | */ | |
2671 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2672 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2673 | { |
2674 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2675 | return codec->driver->set_sysclk(codec, clk_id, source, |
2676 | freq, dir); | |
ec4ee52a MB |
2677 | else |
2678 | return -EINVAL; | |
2679 | } | |
2680 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2681 | ||
8c6529db LG |
2682 | /** |
2683 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2684 | * @dai: DAI | |
ac11a2b3 | 2685 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2686 | * @div: new clock divisor. |
2687 | * | |
2688 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2689 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2690 | * and frame clocks as low as possible to save system power. | |
2691 | */ | |
2692 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2693 | int div_id, int div) | |
2694 | { | |
f0fba2ad LG |
2695 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2696 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2697 | else |
2698 | return -EINVAL; | |
2699 | } | |
2700 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2701 | ||
2702 | /** | |
2703 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2704 | * @dai: DAI | |
2705 | * @pll_id: DAI specific PLL ID | |
85488037 | 2706 | * @source: DAI specific source for the PLL |
8c6529db LG |
2707 | * @freq_in: PLL input clock frequency in Hz |
2708 | * @freq_out: requested PLL output clock frequency in Hz | |
2709 | * | |
2710 | * Configures and enables PLL to generate output clock based on input clock. | |
2711 | */ | |
85488037 MB |
2712 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2713 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2714 | { |
f0fba2ad LG |
2715 | if (dai->driver && dai->driver->ops->set_pll) |
2716 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2717 | freq_in, freq_out); |
ec4ee52a MB |
2718 | else if (dai->codec && dai->codec->driver->set_pll) |
2719 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2720 | freq_in, freq_out); | |
8c6529db LG |
2721 | else |
2722 | return -EINVAL; | |
2723 | } | |
2724 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2725 | ||
ec4ee52a MB |
2726 | /* |
2727 | * snd_soc_codec_set_pll - configure codec PLL. | |
2728 | * @codec: CODEC | |
2729 | * @pll_id: DAI specific PLL ID | |
2730 | * @source: DAI specific source for the PLL | |
2731 | * @freq_in: PLL input clock frequency in Hz | |
2732 | * @freq_out: requested PLL output clock frequency in Hz | |
2733 | * | |
2734 | * Configures and enables PLL to generate output clock based on input clock. | |
2735 | */ | |
2736 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2737 | unsigned int freq_in, unsigned int freq_out) | |
2738 | { | |
2739 | if (codec->driver->set_pll) | |
2740 | return codec->driver->set_pll(codec, pll_id, source, | |
2741 | freq_in, freq_out); | |
2742 | else | |
2743 | return -EINVAL; | |
2744 | } | |
2745 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2746 | ||
8c6529db LG |
2747 | /** |
2748 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2749 | * @dai: DAI | |
8c6529db LG |
2750 | * @fmt: SND_SOC_DAIFMT_ format value. |
2751 | * | |
2752 | * Configures the DAI hardware format and clocking. | |
2753 | */ | |
2754 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2755 | { | |
f0fba2ad LG |
2756 | if (dai->driver && dai->driver->ops->set_fmt) |
2757 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2758 | else |
2759 | return -EINVAL; | |
2760 | } | |
2761 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2762 | ||
2763 | /** | |
2764 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2765 | * @dai: DAI | |
a5479e38 DR |
2766 | * @tx_mask: bitmask representing active TX slots. |
2767 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2768 | * @slots: Number of slots in use. |
a5479e38 | 2769 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2770 | * |
2771 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2772 | * specific. | |
2773 | */ | |
2774 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2775 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2776 | { |
f0fba2ad LG |
2777 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2778 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2779 | slots, slot_width); |
8c6529db LG |
2780 | else |
2781 | return -EINVAL; | |
2782 | } | |
2783 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2784 | ||
472df3cb BS |
2785 | /** |
2786 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2787 | * @dai: DAI | |
2788 | * @tx_num: how many TX channels | |
2789 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2790 | * 0~num-1 uses | |
2791 | * @rx_num: how many RX channels | |
2792 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2793 | * 0~num-1 uses | |
2794 | * | |
2795 | * configure the relationship between channel number and TDM slot number. | |
2796 | */ | |
2797 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2798 | unsigned int tx_num, unsigned int *tx_slot, | |
2799 | unsigned int rx_num, unsigned int *rx_slot) | |
2800 | { | |
f0fba2ad LG |
2801 | if (dai->driver && dai->driver->ops->set_channel_map) |
2802 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2803 | rx_num, rx_slot); |
2804 | else | |
2805 | return -EINVAL; | |
2806 | } | |
2807 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2808 | ||
8c6529db LG |
2809 | /** |
2810 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2811 | * @dai: DAI | |
2812 | * @tristate: tristate enable | |
2813 | * | |
2814 | * Tristates the DAI so that others can use it. | |
2815 | */ | |
2816 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2817 | { | |
f0fba2ad LG |
2818 | if (dai->driver && dai->driver->ops->set_tristate) |
2819 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2820 | else |
2821 | return -EINVAL; | |
2822 | } | |
2823 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2824 | ||
2825 | /** | |
2826 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2827 | * @dai: DAI | |
2828 | * @mute: mute enable | |
2829 | * | |
2830 | * Mutes the DAI DAC. | |
2831 | */ | |
2832 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2833 | { | |
f0fba2ad LG |
2834 | if (dai->driver && dai->driver->ops->digital_mute) |
2835 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2836 | else |
2837 | return -EINVAL; | |
2838 | } | |
2839 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2840 | ||
c5af3a2e MB |
2841 | /** |
2842 | * snd_soc_register_card - Register a card with the ASoC core | |
2843 | * | |
ac11a2b3 | 2844 | * @card: Card to register |
c5af3a2e | 2845 | * |
c5af3a2e | 2846 | */ |
70a7ca34 | 2847 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2848 | { |
f0fba2ad LG |
2849 | int i; |
2850 | ||
c5af3a2e MB |
2851 | if (!card->name || !card->dev) |
2852 | return -EINVAL; | |
2853 | ||
5a504963 SW |
2854 | for (i = 0; i < card->num_links; i++) { |
2855 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2856 | ||
2857 | /* | |
2858 | * Codec must be specified by 1 of name or OF node, | |
2859 | * not both or neither. | |
2860 | */ | |
2861 | if (!!link->codec_name == !!link->codec_of_node) { | |
2862 | dev_err(card->dev, | |
2863 | "Neither/both codec name/of_node are set\n"); | |
2864 | return -EINVAL; | |
2865 | } | |
2866 | ||
2867 | /* | |
2868 | * Platform may be specified by either name or OF node, but | |
2869 | * can be left unspecified, and a dummy platform will be used. | |
2870 | */ | |
2871 | if (link->platform_name && link->platform_of_node) { | |
2872 | dev_err(card->dev, | |
2873 | "Both platform name/of_node are set\n"); | |
2874 | return -EINVAL; | |
2875 | } | |
2876 | ||
2877 | /* | |
2878 | * CPU DAI must be specified by 1 of name or OF node, | |
2879 | * not both or neither. | |
2880 | */ | |
2881 | if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) { | |
2882 | dev_err(card->dev, | |
2883 | "Neither/both cpu_dai name/of_node are set\n"); | |
2884 | return -EINVAL; | |
2885 | } | |
2886 | } | |
2887 | ||
ed77cc12 MB |
2888 | dev_set_drvdata(card->dev, card); |
2889 | ||
111c6419 SW |
2890 | snd_soc_initialize_card_lists(card); |
2891 | ||
150dd2f8 VK |
2892 | soc_init_card_debugfs(card); |
2893 | ||
2eea392d JN |
2894 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
2895 | (card->num_links + card->num_aux_devs), | |
2896 | GFP_KERNEL); | |
f0fba2ad LG |
2897 | if (card->rtd == NULL) |
2898 | return -ENOMEM; | |
2eea392d | 2899 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
2900 | |
2901 | for (i = 0; i < card->num_links; i++) | |
2902 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2903 | ||
c5af3a2e | 2904 | INIT_LIST_HEAD(&card->list); |
db432b41 | 2905 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 2906 | card->instantiated = 0; |
f0fba2ad | 2907 | mutex_init(&card->mutex); |
c5af3a2e MB |
2908 | |
2909 | mutex_lock(&client_mutex); | |
2910 | list_add(&card->list, &card_list); | |
435c5e25 | 2911 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2912 | mutex_unlock(&client_mutex); |
2913 | ||
2914 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2915 | ||
2916 | return 0; | |
2917 | } | |
70a7ca34 | 2918 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2919 | |
2920 | /** | |
2921 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2922 | * | |
ac11a2b3 | 2923 | * @card: Card to unregister |
c5af3a2e | 2924 | * |
c5af3a2e | 2925 | */ |
70a7ca34 | 2926 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2927 | { |
b0e26485 VK |
2928 | if (card->instantiated) |
2929 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
2930 | mutex_lock(&client_mutex); |
2931 | list_del(&card->list); | |
2932 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2933 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2934 | ||
2935 | return 0; | |
2936 | } | |
70a7ca34 | 2937 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2938 | |
f0fba2ad LG |
2939 | /* |
2940 | * Simplify DAI link configuration by removing ".-1" from device names | |
2941 | * and sanitizing names. | |
2942 | */ | |
0b9a214a | 2943 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2944 | { |
2945 | char *found, name[NAME_SIZE]; | |
2946 | int id1, id2; | |
2947 | ||
2948 | if (dev_name(dev) == NULL) | |
2949 | return NULL; | |
2950 | ||
58818a77 | 2951 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2952 | |
2953 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2954 | found = strstr(name, dev->driver->name); | |
2955 | if (found) { | |
2956 | /* get ID */ | |
2957 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2958 | ||
2959 | /* discard ID from name if ID == -1 */ | |
2960 | if (*id == -1) | |
2961 | found[strlen(dev->driver->name)] = '\0'; | |
2962 | } | |
2963 | ||
2964 | } else { | |
2965 | /* I2C component devices are named "bus-addr" */ | |
2966 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2967 | char tmp[NAME_SIZE]; | |
2968 | ||
2969 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2970 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2971 | |
2972 | /* sanitize component name for DAI link creation */ | |
2973 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2974 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2975 | } else |
2976 | *id = 0; | |
2977 | } | |
2978 | ||
2979 | return kstrdup(name, GFP_KERNEL); | |
2980 | } | |
2981 | ||
2982 | /* | |
2983 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2984 | * any ".-1" and using the DAI name (instead of device name). | |
2985 | */ | |
2986 | static inline char *fmt_multiple_name(struct device *dev, | |
2987 | struct snd_soc_dai_driver *dai_drv) | |
2988 | { | |
2989 | if (dai_drv->name == NULL) { | |
2990 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2991 | dev_name(dev)); | |
2992 | return NULL; | |
2993 | } | |
2994 | ||
2995 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2996 | } | |
2997 | ||
9115171a MB |
2998 | /** |
2999 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3000 | * | |
ac11a2b3 | 3001 | * @dai: DAI to register |
9115171a | 3002 | */ |
f0fba2ad LG |
3003 | int snd_soc_register_dai(struct device *dev, |
3004 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3005 | { |
f0fba2ad LG |
3006 | struct snd_soc_dai *dai; |
3007 | ||
3008 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3009 | |
f0fba2ad LG |
3010 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3011 | if (dai == NULL) | |
a7393623 | 3012 | return -ENOMEM; |
9115171a | 3013 | |
f0fba2ad LG |
3014 | /* create DAI component name */ |
3015 | dai->name = fmt_single_name(dev, &dai->id); | |
3016 | if (dai->name == NULL) { | |
3017 | kfree(dai); | |
3018 | return -ENOMEM; | |
3019 | } | |
6335d055 | 3020 | |
f0fba2ad LG |
3021 | dai->dev = dev; |
3022 | dai->driver = dai_drv; | |
3023 | if (!dai->driver->ops) | |
3024 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3025 | |
3026 | mutex_lock(&client_mutex); | |
3027 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3028 | snd_soc_instantiate_cards(); |
9115171a MB |
3029 | mutex_unlock(&client_mutex); |
3030 | ||
3031 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3032 | ||
3033 | return 0; | |
3034 | } | |
3035 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3036 | ||
3037 | /** | |
3038 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3039 | * | |
ac11a2b3 | 3040 | * @dai: DAI to unregister |
9115171a | 3041 | */ |
f0fba2ad | 3042 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3043 | { |
f0fba2ad LG |
3044 | struct snd_soc_dai *dai; |
3045 | ||
3046 | list_for_each_entry(dai, &dai_list, list) { | |
3047 | if (dev == dai->dev) | |
3048 | goto found; | |
3049 | } | |
3050 | return; | |
3051 | ||
3052 | found: | |
9115171a MB |
3053 | mutex_lock(&client_mutex); |
3054 | list_del(&dai->list); | |
3055 | mutex_unlock(&client_mutex); | |
3056 | ||
3057 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3058 | kfree(dai->name); |
3059 | kfree(dai); | |
9115171a MB |
3060 | } |
3061 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3062 | ||
3063 | /** | |
3064 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3065 | * | |
ac11a2b3 MB |
3066 | * @dai: Array of DAIs to register |
3067 | * @count: Number of DAIs | |
9115171a | 3068 | */ |
f0fba2ad LG |
3069 | int snd_soc_register_dais(struct device *dev, |
3070 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3071 | { |
f0fba2ad LG |
3072 | struct snd_soc_dai *dai; |
3073 | int i, ret = 0; | |
3074 | ||
720ffa4c | 3075 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3076 | |
3077 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3078 | |
3079 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3080 | if (dai == NULL) { |
3081 | ret = -ENOMEM; | |
3082 | goto err; | |
3083 | } | |
f0fba2ad LG |
3084 | |
3085 | /* create DAI component name */ | |
3086 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3087 | if (dai->name == NULL) { | |
3088 | kfree(dai); | |
3089 | ret = -EINVAL; | |
9115171a | 3090 | goto err; |
f0fba2ad LG |
3091 | } |
3092 | ||
3093 | dai->dev = dev; | |
f0fba2ad | 3094 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3095 | if (dai->driver->id) |
3096 | dai->id = dai->driver->id; | |
3097 | else | |
3098 | dai->id = i; | |
f0fba2ad LG |
3099 | if (!dai->driver->ops) |
3100 | dai->driver->ops = &null_dai_ops; | |
3101 | ||
3102 | mutex_lock(&client_mutex); | |
3103 | list_add(&dai->list, &dai_list); | |
3104 | mutex_unlock(&client_mutex); | |
3105 | ||
3106 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3107 | } |
3108 | ||
1dcb4f38 | 3109 | mutex_lock(&client_mutex); |
f0fba2ad | 3110 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3111 | mutex_unlock(&client_mutex); |
9115171a MB |
3112 | return 0; |
3113 | ||
3114 | err: | |
3115 | for (i--; i >= 0; i--) | |
f0fba2ad | 3116 | snd_soc_unregister_dai(dev); |
9115171a MB |
3117 | |
3118 | return ret; | |
3119 | } | |
3120 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3121 | ||
3122 | /** | |
3123 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3124 | * | |
ac11a2b3 MB |
3125 | * @dai: Array of DAIs to unregister |
3126 | * @count: Number of DAIs | |
9115171a | 3127 | */ |
f0fba2ad | 3128 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3129 | { |
3130 | int i; | |
3131 | ||
3132 | for (i = 0; i < count; i++) | |
f0fba2ad | 3133 | snd_soc_unregister_dai(dev); |
9115171a MB |
3134 | } |
3135 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3136 | ||
12a48a8c MB |
3137 | /** |
3138 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3139 | * | |
ac11a2b3 | 3140 | * @platform: platform to register |
12a48a8c | 3141 | */ |
f0fba2ad LG |
3142 | int snd_soc_register_platform(struct device *dev, |
3143 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3144 | { |
f0fba2ad LG |
3145 | struct snd_soc_platform *platform; |
3146 | ||
3147 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3148 | ||
3149 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3150 | if (platform == NULL) | |
a7393623 | 3151 | return -ENOMEM; |
f0fba2ad LG |
3152 | |
3153 | /* create platform component name */ | |
3154 | platform->name = fmt_single_name(dev, &platform->id); | |
3155 | if (platform->name == NULL) { | |
3156 | kfree(platform); | |
3157 | return -ENOMEM; | |
3158 | } | |
12a48a8c | 3159 | |
f0fba2ad LG |
3160 | platform->dev = dev; |
3161 | platform->driver = platform_drv; | |
b7950641 LG |
3162 | platform->dapm.dev = dev; |
3163 | platform->dapm.platform = platform; | |
64a648c2 | 3164 | platform->dapm.stream_event = platform_drv->stream_event; |
12a48a8c MB |
3165 | |
3166 | mutex_lock(&client_mutex); | |
3167 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3168 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3169 | mutex_unlock(&client_mutex); |
3170 | ||
3171 | pr_debug("Registered platform '%s'\n", platform->name); | |
3172 | ||
3173 | return 0; | |
3174 | } | |
3175 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3176 | ||
3177 | /** | |
3178 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3179 | * | |
ac11a2b3 | 3180 | * @platform: platform to unregister |
12a48a8c | 3181 | */ |
f0fba2ad | 3182 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3183 | { |
f0fba2ad LG |
3184 | struct snd_soc_platform *platform; |
3185 | ||
3186 | list_for_each_entry(platform, &platform_list, list) { | |
3187 | if (dev == platform->dev) | |
3188 | goto found; | |
3189 | } | |
3190 | return; | |
3191 | ||
3192 | found: | |
12a48a8c MB |
3193 | mutex_lock(&client_mutex); |
3194 | list_del(&platform->list); | |
3195 | mutex_unlock(&client_mutex); | |
3196 | ||
3197 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3198 | kfree(platform->name); |
3199 | kfree(platform); | |
12a48a8c MB |
3200 | } |
3201 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3202 | ||
151ab22c MB |
3203 | static u64 codec_format_map[] = { |
3204 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3205 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3206 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3207 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3208 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3209 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3210 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3211 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3212 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3213 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3214 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3215 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3216 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3217 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3218 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3219 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3220 | }; | |
3221 | ||
3222 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3223 | * the endianness of the data but we're using the CPU format | |
3224 | * definitions which do need to include endianness so we ensure that | |
3225 | * codec DAIs always have both big and little endian variants set. | |
3226 | */ | |
3227 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3228 | { | |
3229 | int i; | |
3230 | ||
3231 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3232 | if (stream->formats & codec_format_map[i]) | |
3233 | stream->formats |= codec_format_map[i]; | |
3234 | } | |
3235 | ||
0d0cf00a MB |
3236 | /** |
3237 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3238 | * | |
ac11a2b3 | 3239 | * @codec: codec to register |
0d0cf00a | 3240 | */ |
f0fba2ad | 3241 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3242 | const struct snd_soc_codec_driver *codec_drv, |
3243 | struct snd_soc_dai_driver *dai_drv, | |
3244 | int num_dai) | |
0d0cf00a | 3245 | { |
3335ddca | 3246 | size_t reg_size; |
f0fba2ad LG |
3247 | struct snd_soc_codec *codec; |
3248 | int ret, i; | |
151ab22c | 3249 | |
f0fba2ad LG |
3250 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3251 | ||
3252 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3253 | if (codec == NULL) | |
3254 | return -ENOMEM; | |
0d0cf00a | 3255 | |
f0fba2ad LG |
3256 | /* create CODEC component name */ |
3257 | codec->name = fmt_single_name(dev, &codec->id); | |
3258 | if (codec->name == NULL) { | |
3259 | kfree(codec); | |
3260 | return -ENOMEM; | |
3261 | } | |
3262 | ||
23bbce34 DP |
3263 | if (codec_drv->compress_type) |
3264 | codec->compress_type = codec_drv->compress_type; | |
3265 | else | |
3266 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3267 | ||
c3acec26 MB |
3268 | codec->write = codec_drv->write; |
3269 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3270 | codec->volatile_register = codec_drv->volatile_register; |
3271 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3272 | codec->writable_register = codec_drv->writable_register; |
ce6120cc LG |
3273 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3274 | codec->dapm.dev = dev; | |
3275 | codec->dapm.codec = codec; | |
474b62d6 | 3276 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3277 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3278 | codec->dev = dev; |
3279 | codec->driver = codec_drv; | |
3280 | codec->num_dai = num_dai; | |
3281 | mutex_init(&codec->mutex); | |
ce6120cc | 3282 | |
f0fba2ad LG |
3283 | /* allocate CODEC register cache */ |
3284 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3285 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3286 | codec->reg_size = reg_size; |
3335ddca DP |
3287 | /* it is necessary to make a copy of the default register cache |
3288 | * because in the case of using a compression type that requires | |
3289 | * the default register cache to be marked as __devinitconst the | |
3290 | * kernel might have freed the array by the time we initialize | |
3291 | * the cache. | |
3292 | */ | |
2aa86323 DP |
3293 | if (codec_drv->reg_cache_default) { |
3294 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3295 | reg_size, GFP_KERNEL); | |
3296 | if (!codec->reg_def_copy) { | |
3297 | ret = -ENOMEM; | |
3298 | goto fail; | |
3299 | } | |
f0fba2ad | 3300 | } |
151ab22c MB |
3301 | } |
3302 | ||
1500b7b5 DP |
3303 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3304 | if (!codec->volatile_register) | |
3305 | codec->volatile_register = snd_soc_default_volatile_register; | |
3306 | if (!codec->readable_register) | |
3307 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3308 | if (!codec->writable_register) |
3309 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3310 | } |
3311 | ||
f0fba2ad LG |
3312 | for (i = 0; i < num_dai; i++) { |
3313 | fixup_codec_formats(&dai_drv[i].playback); | |
3314 | fixup_codec_formats(&dai_drv[i].capture); | |
3315 | } | |
3316 | ||
26b01ccd MB |
3317 | /* register any DAIs */ |
3318 | if (num_dai) { | |
3319 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3320 | if (ret < 0) | |
fdf0f54d | 3321 | goto fail; |
26b01ccd | 3322 | } |
f0fba2ad | 3323 | |
0d0cf00a MB |
3324 | mutex_lock(&client_mutex); |
3325 | list_add(&codec->list, &codec_list); | |
3326 | snd_soc_instantiate_cards(); | |
3327 | mutex_unlock(&client_mutex); | |
3328 | ||
3329 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3330 | return 0; |
f0fba2ad | 3331 | |
fdf0f54d | 3332 | fail: |
3335ddca DP |
3333 | kfree(codec->reg_def_copy); |
3334 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3335 | kfree(codec->name); |
3336 | kfree(codec); | |
3337 | return ret; | |
0d0cf00a MB |
3338 | } |
3339 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3340 | ||
3341 | /** | |
3342 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3343 | * | |
ac11a2b3 | 3344 | * @codec: codec to unregister |
0d0cf00a | 3345 | */ |
f0fba2ad | 3346 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3347 | { |
f0fba2ad LG |
3348 | struct snd_soc_codec *codec; |
3349 | int i; | |
3350 | ||
3351 | list_for_each_entry(codec, &codec_list, list) { | |
3352 | if (dev == codec->dev) | |
3353 | goto found; | |
3354 | } | |
3355 | return; | |
3356 | ||
3357 | found: | |
26b01ccd MB |
3358 | if (codec->num_dai) |
3359 | for (i = 0; i < codec->num_dai; i++) | |
3360 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3361 | |
0d0cf00a MB |
3362 | mutex_lock(&client_mutex); |
3363 | list_del(&codec->list); | |
3364 | mutex_unlock(&client_mutex); | |
3365 | ||
3366 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3367 | |
7a30a3db | 3368 | snd_soc_cache_exit(codec); |
3335ddca | 3369 | kfree(codec->reg_def_copy); |
1aafcd4d | 3370 | kfree(codec->name); |
f0fba2ad | 3371 | kfree(codec); |
0d0cf00a MB |
3372 | } |
3373 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3374 | ||
bec4fa05 SW |
3375 | /* Retrieve a card's name from device tree */ |
3376 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3377 | const char *propname) | |
3378 | { | |
3379 | struct device_node *np = card->dev->of_node; | |
3380 | int ret; | |
3381 | ||
3382 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
3383 | /* | |
3384 | * EINVAL means the property does not exist. This is fine providing | |
3385 | * card->name was previously set, which is checked later in | |
3386 | * snd_soc_register_card. | |
3387 | */ | |
3388 | if (ret < 0 && ret != -EINVAL) { | |
3389 | dev_err(card->dev, | |
3390 | "Property '%s' could not be read: %d\n", | |
3391 | propname, ret); | |
3392 | return ret; | |
3393 | } | |
3394 | ||
3395 | return 0; | |
3396 | } | |
3397 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3398 | ||
a4a54dd5 SW |
3399 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3400 | const char *propname) | |
3401 | { | |
3402 | struct device_node *np = card->dev->of_node; | |
3403 | int num_routes; | |
3404 | struct snd_soc_dapm_route *routes; | |
3405 | int i, ret; | |
3406 | ||
3407 | num_routes = of_property_count_strings(np, propname); | |
3408 | if (num_routes & 1) { | |
3409 | dev_err(card->dev, | |
3410 | "Property '%s's length is not even\n", | |
3411 | propname); | |
3412 | return -EINVAL; | |
3413 | } | |
3414 | num_routes /= 2; | |
3415 | if (!num_routes) { | |
3416 | dev_err(card->dev, | |
3417 | "Property '%s's length is zero\n", | |
3418 | propname); | |
3419 | return -EINVAL; | |
3420 | } | |
3421 | ||
3422 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
3423 | GFP_KERNEL); | |
3424 | if (!routes) { | |
3425 | dev_err(card->dev, | |
3426 | "Could not allocate DAPM route table\n"); | |
3427 | return -EINVAL; | |
3428 | } | |
3429 | ||
3430 | for (i = 0; i < num_routes; i++) { | |
3431 | ret = of_property_read_string_index(np, propname, | |
3432 | 2 * i, &routes[i].sink); | |
3433 | if (ret) { | |
3434 | dev_err(card->dev, | |
3435 | "Property '%s' index %d could not be read: %d\n", | |
3436 | propname, 2 * i, ret); | |
3437 | return -EINVAL; | |
3438 | } | |
3439 | ret = of_property_read_string_index(np, propname, | |
3440 | (2 * i) + 1, &routes[i].source); | |
3441 | if (ret) { | |
3442 | dev_err(card->dev, | |
3443 | "Property '%s' index %d could not be read: %d\n", | |
3444 | propname, (2 * i) + 1, ret); | |
3445 | return -EINVAL; | |
3446 | } | |
3447 | } | |
3448 | ||
3449 | card->num_dapm_routes = num_routes; | |
3450 | card->dapm_routes = routes; | |
3451 | ||
3452 | return 0; | |
3453 | } | |
3454 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3455 | ||
c9b3a40f | 3456 | static int __init snd_soc_init(void) |
db2a4165 | 3457 | { |
384c89e2 | 3458 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3459 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3460 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3461 | printk(KERN_WARNING |
3462 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3463 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3464 | } |
c3c5a19a | 3465 | |
8a9dab1a | 3466 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3467 | &codec_list_fops)) |
3468 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3469 | ||
8a9dab1a | 3470 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3471 | &dai_list_fops)) |
3472 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3473 | |
8a9dab1a | 3474 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3475 | &platform_list_fops)) |
3476 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3477 | #endif |
3478 | ||
fb257897 MB |
3479 | snd_soc_util_init(); |
3480 | ||
db2a4165 FM |
3481 | return platform_driver_register(&soc_driver); |
3482 | } | |
4abe8e16 | 3483 | module_init(snd_soc_init); |
db2a4165 | 3484 | |
7d8c16a6 | 3485 | static void __exit snd_soc_exit(void) |
db2a4165 | 3486 | { |
fb257897 MB |
3487 | snd_soc_util_exit(); |
3488 | ||
384c89e2 | 3489 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3490 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3491 | #endif |
3ff3f64b | 3492 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3493 | } |
db2a4165 FM |
3494 | module_exit(snd_soc_exit); |
3495 | ||
3496 | /* Module information */ | |
d331124d | 3497 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3498 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3499 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3500 | MODULE_ALIAS("platform:soc-audio"); |