Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
f0e8ed85 | 33 | #include <linux/ctype.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
bec4fa05 | 35 | #include <linux/of.h> |
474828a4 | 36 | #include <sound/ac97_codec.h> |
db2a4165 | 37 | #include <sound/core.h> |
3028eb8c | 38 | #include <sound/jack.h> |
db2a4165 FM |
39 | #include <sound/pcm.h> |
40 | #include <sound/pcm_params.h> | |
41 | #include <sound/soc.h> | |
01d7584c | 42 | #include <sound/soc-dpcm.h> |
db2a4165 FM |
43 | #include <sound/initval.h> |
44 | ||
a8b1d34f MB |
45 | #define CREATE_TRACE_POINTS |
46 | #include <trace/events/asoc.h> | |
47 | ||
f0fba2ad LG |
48 | #define NAME_SIZE 32 |
49 | ||
db2a4165 FM |
50 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
51 | ||
384c89e2 | 52 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
53 | struct dentry *snd_soc_debugfs_root; |
54 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
55 | #endif |
56 | ||
c5af3a2e | 57 | static DEFINE_MUTEX(client_mutex); |
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 | 203 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 204 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 205 | size_t count, loff_t *ppos) |
2624d5fa MB |
206 | { |
207 | ssize_t ret; | |
208 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
209 | char *buf; |
210 | ||
211 | if (*ppos < 0 || !count) | |
212 | return -EINVAL; | |
213 | ||
214 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
215 | if (!buf) |
216 | return -ENOMEM; | |
13fd179f DP |
217 | |
218 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
219 | if (ret >= 0) { | |
220 | if (copy_to_user(user_buf, buf, ret)) { | |
221 | kfree(buf); | |
222 | return -EFAULT; | |
223 | } | |
224 | *ppos += ret; | |
225 | } | |
226 | ||
2624d5fa MB |
227 | kfree(buf); |
228 | return ret; | |
229 | } | |
230 | ||
231 | static ssize_t codec_reg_write_file(struct file *file, | |
232 | const char __user *user_buf, size_t count, loff_t *ppos) | |
233 | { | |
234 | char buf[32]; | |
34e268d8 | 235 | size_t buf_size; |
2624d5fa MB |
236 | char *start = buf; |
237 | unsigned long reg, value; | |
2624d5fa MB |
238 | struct snd_soc_codec *codec = file->private_data; |
239 | ||
240 | buf_size = min(count, (sizeof(buf)-1)); | |
241 | if (copy_from_user(buf, user_buf, buf_size)) | |
242 | return -EFAULT; | |
243 | buf[buf_size] = 0; | |
2624d5fa MB |
244 | |
245 | while (*start == ' ') | |
246 | start++; | |
247 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
248 | while (*start == ' ') |
249 | start++; | |
250 | if (strict_strtoul(start, 16, &value)) | |
251 | return -EINVAL; | |
0d51a9cb MB |
252 | |
253 | /* Userspace has been fiddling around behind the kernel's back */ | |
254 | add_taint(TAINT_USER); | |
255 | ||
e4f078d8 | 256 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
257 | return buf_size; |
258 | } | |
259 | ||
260 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 261 | .open = simple_open, |
2624d5fa MB |
262 | .read = codec_reg_read_file, |
263 | .write = codec_reg_write_file, | |
6038f373 | 264 | .llseek = default_llseek, |
2624d5fa MB |
265 | }; |
266 | ||
267 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
268 | { | |
d6ce4cf3 JN |
269 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
270 | ||
271 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
272 | debugfs_card_root); | |
2624d5fa | 273 | if (!codec->debugfs_codec_root) { |
64e60f9f | 274 | dev_warn(codec->dev, "Failed to create codec debugfs directory\n"); |
2624d5fa MB |
275 | return; |
276 | } | |
277 | ||
aaee8ef1 MB |
278 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
279 | &codec->cache_sync); | |
280 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
281 | &codec->cache_only); | |
282 | ||
2624d5fa MB |
283 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
284 | codec->debugfs_codec_root, | |
285 | codec, &codec_reg_fops); | |
286 | if (!codec->debugfs_reg) | |
64e60f9f | 287 | dev_warn(codec->dev, "Failed to create codec register debugfs file\n"); |
2624d5fa | 288 | |
8eecaf62 | 289 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
290 | } |
291 | ||
292 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
293 | { | |
294 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
295 | } | |
296 | ||
731f1ab2 SG |
297 | static void soc_init_platform_debugfs(struct snd_soc_platform *platform) |
298 | { | |
299 | struct dentry *debugfs_card_root = platform->card->debugfs_card_root; | |
300 | ||
301 | platform->debugfs_platform_root = debugfs_create_dir(platform->name, | |
302 | debugfs_card_root); | |
303 | if (!platform->debugfs_platform_root) { | |
304 | dev_warn(platform->dev, | |
305 | "Failed to create platform debugfs directory\n"); | |
306 | return; | |
307 | } | |
308 | ||
309 | snd_soc_dapm_debugfs_init(&platform->dapm, | |
310 | platform->debugfs_platform_root); | |
311 | } | |
312 | ||
313 | static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform) | |
314 | { | |
315 | debugfs_remove_recursive(platform->debugfs_platform_root); | |
316 | } | |
317 | ||
c3c5a19a MB |
318 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
319 | size_t count, loff_t *ppos) | |
320 | { | |
321 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 322 | ssize_t len, ret = 0; |
c3c5a19a MB |
323 | struct snd_soc_codec *codec; |
324 | ||
325 | if (!buf) | |
326 | return -ENOMEM; | |
327 | ||
2b194f9d MB |
328 | list_for_each_entry(codec, &codec_list, list) { |
329 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
330 | codec->name); | |
331 | if (len >= 0) | |
332 | ret += len; | |
333 | if (ret > PAGE_SIZE) { | |
334 | ret = PAGE_SIZE; | |
335 | break; | |
336 | } | |
337 | } | |
c3c5a19a MB |
338 | |
339 | if (ret >= 0) | |
340 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
341 | ||
342 | kfree(buf); | |
343 | ||
344 | return ret; | |
345 | } | |
346 | ||
347 | static const struct file_operations codec_list_fops = { | |
348 | .read = codec_list_read_file, | |
349 | .llseek = default_llseek,/* read accesses f_pos */ | |
350 | }; | |
351 | ||
f3208780 MB |
352 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
353 | size_t count, loff_t *ppos) | |
354 | { | |
355 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 356 | ssize_t len, ret = 0; |
f3208780 MB |
357 | struct snd_soc_dai *dai; |
358 | ||
359 | if (!buf) | |
360 | return -ENOMEM; | |
361 | ||
2b194f9d MB |
362 | list_for_each_entry(dai, &dai_list, list) { |
363 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
364 | if (len >= 0) | |
365 | ret += len; | |
366 | if (ret > PAGE_SIZE) { | |
367 | ret = PAGE_SIZE; | |
368 | break; | |
369 | } | |
370 | } | |
f3208780 | 371 | |
2b194f9d | 372 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
373 | |
374 | kfree(buf); | |
375 | ||
376 | return ret; | |
377 | } | |
378 | ||
379 | static const struct file_operations dai_list_fops = { | |
380 | .read = dai_list_read_file, | |
381 | .llseek = default_llseek,/* read accesses f_pos */ | |
382 | }; | |
383 | ||
19c7ac27 MB |
384 | static ssize_t platform_list_read_file(struct file *file, |
385 | char __user *user_buf, | |
386 | size_t count, loff_t *ppos) | |
387 | { | |
388 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 389 | ssize_t len, ret = 0; |
19c7ac27 MB |
390 | struct snd_soc_platform *platform; |
391 | ||
392 | if (!buf) | |
393 | return -ENOMEM; | |
394 | ||
2b194f9d MB |
395 | list_for_each_entry(platform, &platform_list, list) { |
396 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
397 | platform->name); | |
398 | if (len >= 0) | |
399 | ret += len; | |
400 | if (ret > PAGE_SIZE) { | |
401 | ret = PAGE_SIZE; | |
402 | break; | |
403 | } | |
404 | } | |
19c7ac27 | 405 | |
2b194f9d | 406 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
407 | |
408 | kfree(buf); | |
409 | ||
410 | return ret; | |
411 | } | |
412 | ||
413 | static const struct file_operations platform_list_fops = { | |
414 | .read = platform_list_read_file, | |
415 | .llseek = default_llseek,/* read accesses f_pos */ | |
416 | }; | |
417 | ||
a6052154 JN |
418 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
419 | { | |
420 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 421 | snd_soc_debugfs_root); |
3a45b867 | 422 | if (!card->debugfs_card_root) { |
a6052154 | 423 | dev_warn(card->dev, |
7c08be84 | 424 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
425 | return; |
426 | } | |
427 | ||
428 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
429 | card->debugfs_card_root, | |
430 | &card->pop_time); | |
431 | if (!card->debugfs_pop_time) | |
432 | dev_warn(card->dev, | |
433 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
434 | } |
435 | ||
436 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
437 | { | |
438 | debugfs_remove_recursive(card->debugfs_card_root); | |
439 | } | |
440 | ||
2624d5fa MB |
441 | #else |
442 | ||
443 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
444 | { | |
445 | } | |
446 | ||
447 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
448 | { | |
449 | } | |
b95fccbc | 450 | |
731f1ab2 SG |
451 | static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform) |
452 | { | |
453 | } | |
454 | ||
455 | static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform) | |
456 | { | |
457 | } | |
458 | ||
b95fccbc AL |
459 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
460 | { | |
461 | } | |
462 | ||
463 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
464 | { | |
465 | } | |
2624d5fa MB |
466 | #endif |
467 | ||
47c88fff LG |
468 | struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, |
469 | const char *dai_link, int stream) | |
470 | { | |
471 | int i; | |
472 | ||
473 | for (i = 0; i < card->num_links; i++) { | |
474 | if (card->rtd[i].dai_link->no_pcm && | |
475 | !strcmp(card->rtd[i].dai_link->name, dai_link)) | |
476 | return card->rtd[i].pcm->streams[stream].substream; | |
477 | } | |
478 | dev_dbg(card->dev, "failed to find dai link %s\n", dai_link); | |
479 | return NULL; | |
480 | } | |
481 | EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream); | |
482 | ||
483 | struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, | |
484 | const char *dai_link) | |
485 | { | |
486 | int i; | |
487 | ||
488 | for (i = 0; i < card->num_links; i++) { | |
489 | if (!strcmp(card->rtd[i].dai_link->name, dai_link)) | |
490 | return &card->rtd[i]; | |
491 | } | |
492 | dev_dbg(card->dev, "failed to find rtd %s\n", dai_link); | |
493 | return NULL; | |
494 | } | |
495 | EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime); | |
496 | ||
db2a4165 FM |
497 | #ifdef CONFIG_SND_SOC_AC97_BUS |
498 | /* unregister ac97 codec */ | |
499 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
500 | { | |
501 | if (codec->ac97->dev.bus) | |
502 | device_unregister(&codec->ac97->dev); | |
503 | return 0; | |
504 | } | |
505 | ||
506 | /* stop no dev release warning */ | |
507 | static void soc_ac97_device_release(struct device *dev){} | |
508 | ||
509 | /* register ac97 codec to bus */ | |
510 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
511 | { | |
512 | int err; | |
513 | ||
514 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 515 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
516 | codec->ac97->dev.release = soc_ac97_device_release; |
517 | ||
bb072bf0 | 518 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 519 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
520 | err = device_register(&codec->ac97->dev); |
521 | if (err < 0) { | |
522 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
523 | codec->ac97->dev.bus = NULL; | |
524 | return err; | |
525 | } | |
526 | return 0; | |
527 | } | |
528 | #endif | |
529 | ||
6f8ab4ac | 530 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 531 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 532 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 533 | { |
6f8ab4ac | 534 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 535 | struct snd_soc_codec *codec; |
db2a4165 FM |
536 | int i; |
537 | ||
e3509ff0 DM |
538 | /* If the initialization of this soc device failed, there is no codec |
539 | * associated with it. Just bail out in this case. | |
540 | */ | |
f0fba2ad | 541 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
542 | return 0; |
543 | ||
6ed25978 AG |
544 | /* Due to the resume being scheduled into a workqueue we could |
545 | * suspend before that's finished - wait for it to complete. | |
546 | */ | |
f0fba2ad LG |
547 | snd_power_lock(card->snd_card); |
548 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
549 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
550 | |
551 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 552 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 553 | |
a00f90f9 | 554 | /* mute any active DACs */ |
f0fba2ad LG |
555 | for (i = 0; i < card->num_rtd; i++) { |
556 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
557 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 558 | |
f0fba2ad | 559 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
560 | continue; |
561 | ||
f0fba2ad LG |
562 | if (drv->ops->digital_mute && dai->playback_active) |
563 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
564 | } |
565 | ||
4ccab3e7 | 566 | /* suspend all pcms */ |
f0fba2ad LG |
567 | for (i = 0; i < card->num_rtd; i++) { |
568 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
569 | continue; |
570 | ||
f0fba2ad | 571 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 572 | } |
4ccab3e7 | 573 | |
87506549 | 574 | if (card->suspend_pre) |
70b2ac12 | 575 | card->suspend_pre(card); |
db2a4165 | 576 | |
f0fba2ad LG |
577 | for (i = 0; i < card->num_rtd; i++) { |
578 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
579 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 580 | |
f0fba2ad | 581 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
582 | continue; |
583 | ||
f0fba2ad LG |
584 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
585 | cpu_dai->driver->suspend(cpu_dai); | |
586 | if (platform->driver->suspend && !platform->suspended) { | |
587 | platform->driver->suspend(cpu_dai); | |
588 | platform->suspended = 1; | |
589 | } | |
db2a4165 FM |
590 | } |
591 | ||
592 | /* close any waiting streams and save state */ | |
f0fba2ad | 593 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 594 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 595 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 596 | } |
db2a4165 | 597 | |
f0fba2ad | 598 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 599 | |
f0fba2ad | 600 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
601 | continue; |
602 | ||
7bd3a6f3 MB |
603 | snd_soc_dapm_stream_event(&card->rtd[i], |
604 | SNDRV_PCM_STREAM_PLAYBACK, | |
7bd3a6f3 | 605 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 606 | |
7bd3a6f3 MB |
607 | snd_soc_dapm_stream_event(&card->rtd[i], |
608 | SNDRV_PCM_STREAM_CAPTURE, | |
7bd3a6f3 | 609 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
610 | } |
611 | ||
f0fba2ad | 612 | /* suspend all CODECs */ |
2eea392d | 613 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
614 | /* If there are paths active then the CODEC will be held with |
615 | * bias _ON and should not be suspended. */ | |
616 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 617 | switch (codec->dapm.bias_level) { |
f0fba2ad | 618 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
619 | /* |
620 | * If the CODEC is capable of idle | |
621 | * bias off then being in STANDBY | |
622 | * means it's doing something, | |
623 | * otherwise fall through. | |
624 | */ | |
625 | if (codec->dapm.idle_bias_off) { | |
626 | dev_dbg(codec->dev, | |
627 | "idle_bias_off CODEC on over suspend\n"); | |
628 | break; | |
629 | } | |
f0fba2ad | 630 | case SND_SOC_BIAS_OFF: |
84b315ee | 631 | codec->driver->suspend(codec); |
f0fba2ad | 632 | codec->suspended = 1; |
7be4ba24 | 633 | codec->cache_sync = 1; |
f0fba2ad LG |
634 | break; |
635 | default: | |
636 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
637 | break; | |
638 | } | |
1547aba9 MB |
639 | } |
640 | } | |
db2a4165 | 641 | |
f0fba2ad LG |
642 | for (i = 0; i < card->num_rtd; i++) { |
643 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 644 | |
f0fba2ad | 645 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
646 | continue; |
647 | ||
f0fba2ad LG |
648 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
649 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
650 | } |
651 | ||
87506549 | 652 | if (card->suspend_post) |
70b2ac12 | 653 | card->suspend_post(card); |
db2a4165 FM |
654 | |
655 | return 0; | |
656 | } | |
6f8ab4ac | 657 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 658 | |
6ed25978 AG |
659 | /* deferred resume work, so resume can complete before we finished |
660 | * setting our codec back up, which can be very slow on I2C | |
661 | */ | |
662 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 663 | { |
f0fba2ad LG |
664 | struct snd_soc_card *card = |
665 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 666 | struct snd_soc_codec *codec; |
db2a4165 FM |
667 | int i; |
668 | ||
6ed25978 AG |
669 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
670 | * so userspace apps are blocked from touching us | |
671 | */ | |
672 | ||
f0fba2ad | 673 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 674 | |
9949788b | 675 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 676 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 677 | |
87506549 | 678 | if (card->resume_pre) |
70b2ac12 | 679 | card->resume_pre(card); |
db2a4165 | 680 | |
f0fba2ad LG |
681 | /* resume AC97 DAIs */ |
682 | for (i = 0; i < card->num_rtd; i++) { | |
683 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 684 | |
f0fba2ad | 685 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
686 | continue; |
687 | ||
f0fba2ad LG |
688 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
689 | cpu_dai->driver->resume(cpu_dai); | |
690 | } | |
691 | ||
2eea392d | 692 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
693 | /* If the CODEC was idle over suspend then it will have been |
694 | * left with bias OFF or STANDBY and suspended so we must now | |
695 | * resume. Otherwise the suspend was suppressed. | |
696 | */ | |
697 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 698 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
699 | case SND_SOC_BIAS_STANDBY: |
700 | case SND_SOC_BIAS_OFF: | |
701 | codec->driver->resume(codec); | |
702 | codec->suspended = 0; | |
703 | break; | |
704 | default: | |
705 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
706 | break; | |
707 | } | |
1547aba9 MB |
708 | } |
709 | } | |
db2a4165 | 710 | |
f0fba2ad | 711 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 712 | |
f0fba2ad | 713 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
714 | continue; |
715 | ||
7bd3a6f3 | 716 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 717 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 718 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 719 | |
7bd3a6f3 | 720 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 721 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 722 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
723 | } |
724 | ||
3ff3f64b | 725 | /* unmute any active DACs */ |
f0fba2ad LG |
726 | for (i = 0; i < card->num_rtd; i++) { |
727 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
728 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 729 | |
f0fba2ad | 730 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
731 | continue; |
732 | ||
f0fba2ad LG |
733 | if (drv->ops->digital_mute && dai->playback_active) |
734 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
735 | } |
736 | ||
f0fba2ad LG |
737 | for (i = 0; i < card->num_rtd; i++) { |
738 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
739 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 740 | |
f0fba2ad | 741 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
742 | continue; |
743 | ||
f0fba2ad LG |
744 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
745 | cpu_dai->driver->resume(cpu_dai); | |
746 | if (platform->driver->resume && platform->suspended) { | |
747 | platform->driver->resume(cpu_dai); | |
748 | platform->suspended = 0; | |
749 | } | |
db2a4165 FM |
750 | } |
751 | ||
87506549 | 752 | if (card->resume_post) |
70b2ac12 | 753 | card->resume_post(card); |
db2a4165 | 754 | |
f0fba2ad | 755 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
756 | |
757 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 758 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
759 | } |
760 | ||
761 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 762 | int snd_soc_resume(struct device *dev) |
6ed25978 | 763 | { |
6f8ab4ac | 764 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 765 | int i, ac97_control = 0; |
b9dd94a8 | 766 | |
5ff1ddf2 EM |
767 | /* If the initialization of this soc device failed, there is no codec |
768 | * associated with it. Just bail out in this case. | |
769 | */ | |
770 | if (list_empty(&card->codec_dev_list)) | |
771 | return 0; | |
772 | ||
64ab9baa MB |
773 | /* AC97 devices might have other drivers hanging off them so |
774 | * need to resume immediately. Other drivers don't have that | |
775 | * problem and may take a substantial amount of time to resume | |
776 | * due to I/O costs and anti-pop so handle them out of line. | |
777 | */ | |
f0fba2ad LG |
778 | for (i = 0; i < card->num_rtd; i++) { |
779 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
780 | ac97_control |= cpu_dai->driver->ac97_control; |
781 | } | |
782 | if (ac97_control) { | |
783 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
784 | soc_resume_deferred(&card->deferred_resume_work); | |
785 | } else { | |
786 | dev_dbg(dev, "Scheduling resume work\n"); | |
787 | if (!schedule_work(&card->deferred_resume_work)) | |
788 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 789 | } |
6ed25978 | 790 | |
db2a4165 FM |
791 | return 0; |
792 | } | |
6f8ab4ac | 793 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 794 | #else |
6f8ab4ac MB |
795 | #define snd_soc_suspend NULL |
796 | #define snd_soc_resume NULL | |
db2a4165 FM |
797 | #endif |
798 | ||
85e7652d | 799 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
800 | }; |
801 | ||
f0fba2ad | 802 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 803 | { |
f0fba2ad LG |
804 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
805 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 806 | struct snd_soc_codec *codec; |
435c5e25 | 807 | struct snd_soc_platform *platform; |
f0fba2ad | 808 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 809 | const char *platform_name; |
435c5e25 | 810 | |
f0fba2ad | 811 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 812 | |
b19e6e7b | 813 | /* Find CPU DAI from registered DAIs*/ |
f0fba2ad | 814 | list_for_each_entry(cpu_dai, &dai_list, list) { |
5a504963 SW |
815 | if (dai_link->cpu_dai_of_node) { |
816 | if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node) | |
817 | continue; | |
818 | } else { | |
819 | if (strcmp(cpu_dai->name, dai_link->cpu_dai_name)) | |
820 | continue; | |
821 | } | |
2610ab77 SW |
822 | |
823 | rtd->cpu_dai = cpu_dai; | |
435c5e25 | 824 | } |
6308419a | 825 | |
b19e6e7b MB |
826 | if (!rtd->cpu_dai) { |
827 | dev_dbg(card->dev, "CPU DAI %s not registered\n", | |
828 | dai_link->cpu_dai_name); | |
829 | return -EPROBE_DEFER; | |
f0fba2ad LG |
830 | } |
831 | ||
b19e6e7b | 832 | /* Find CODEC from registered CODECs */ |
f0fba2ad | 833 | list_for_each_entry(codec, &codec_list, list) { |
5a504963 SW |
834 | if (dai_link->codec_of_node) { |
835 | if (codec->dev->of_node != dai_link->codec_of_node) | |
836 | continue; | |
837 | } else { | |
838 | if (strcmp(codec->name, dai_link->codec_name)) | |
839 | continue; | |
840 | } | |
2610ab77 SW |
841 | |
842 | rtd->codec = codec; | |
843 | ||
844 | /* | |
845 | * CODEC found, so find CODEC DAI from registered DAIs from | |
846 | * this CODEC | |
847 | */ | |
848 | list_for_each_entry(codec_dai, &dai_list, list) { | |
849 | if (codec->dev == codec_dai->dev && | |
850 | !strcmp(codec_dai->name, | |
851 | dai_link->codec_dai_name)) { | |
f0fba2ad | 852 | |
2610ab77 | 853 | rtd->codec_dai = codec_dai; |
2610ab77 | 854 | } |
435c5e25 | 855 | } |
2610ab77 | 856 | |
b19e6e7b MB |
857 | if (!rtd->codec_dai) { |
858 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", | |
859 | dai_link->codec_dai_name); | |
860 | return -EPROBE_DEFER; | |
861 | } | |
f0fba2ad | 862 | } |
6b05eda6 | 863 | |
b19e6e7b MB |
864 | if (!rtd->codec) { |
865 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
866 | dai_link->codec_name); | |
867 | return -EPROBE_DEFER; | |
868 | } | |
848dd8be MB |
869 | |
870 | /* if there's no platform we match on the empty platform */ | |
871 | platform_name = dai_link->platform_name; | |
5a504963 | 872 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
873 | platform_name = "snd-soc-dummy"; |
874 | ||
b19e6e7b | 875 | /* find one from the set of registered platforms */ |
f0fba2ad | 876 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
877 | if (dai_link->platform_of_node) { |
878 | if (platform->dev->of_node != | |
879 | dai_link->platform_of_node) | |
880 | continue; | |
881 | } else { | |
882 | if (strcmp(platform->name, platform_name)) | |
883 | continue; | |
884 | } | |
2610ab77 SW |
885 | |
886 | rtd->platform = platform; | |
02a06d30 | 887 | } |
b19e6e7b MB |
888 | if (!rtd->platform) { |
889 | dev_dbg(card->dev, "platform %s not registered\n", | |
f0fba2ad | 890 | dai_link->platform_name); |
b19e6e7b | 891 | return -EPROBE_DEFER; |
f0fba2ad | 892 | } |
b19e6e7b MB |
893 | |
894 | card->num_rtd++; | |
895 | ||
896 | return 0; | |
f0fba2ad LG |
897 | } |
898 | ||
589c3563 JN |
899 | static void soc_remove_codec(struct snd_soc_codec *codec) |
900 | { | |
901 | int err; | |
902 | ||
903 | if (codec->driver->remove) { | |
904 | err = codec->driver->remove(codec); | |
905 | if (err < 0) | |
906 | dev_err(codec->dev, | |
907 | "asoc: failed to remove %s: %d\n", | |
908 | codec->name, err); | |
909 | } | |
910 | ||
911 | /* Make sure all DAPM widgets are freed */ | |
912 | snd_soc_dapm_free(&codec->dapm); | |
913 | ||
914 | soc_cleanup_codec_debugfs(codec); | |
915 | codec->probed = 0; | |
916 | list_del(&codec->card_list); | |
917 | module_put(codec->dev->driver->owner); | |
918 | } | |
919 | ||
0168bf0d | 920 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
921 | { |
922 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
923 | struct snd_soc_codec *codec = rtd->codec; | |
924 | struct snd_soc_platform *platform = rtd->platform; | |
925 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
926 | int err; | |
927 | ||
928 | /* unregister the rtd device */ | |
929 | if (rtd->dev_registered) { | |
36ae1a96 MB |
930 | device_remove_file(rtd->dev, &dev_attr_pmdown_time); |
931 | device_remove_file(rtd->dev, &dev_attr_codec_reg); | |
932 | device_unregister(rtd->dev); | |
f0fba2ad LG |
933 | rtd->dev_registered = 0; |
934 | } | |
935 | ||
936 | /* remove the CODEC DAI */ | |
0168bf0d LG |
937 | if (codec_dai && codec_dai->probed && |
938 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
939 | if (codec_dai->driver->remove) { |
940 | err = codec_dai->driver->remove(codec_dai); | |
941 | if (err < 0) | |
0837fc62 FE |
942 | pr_err("asoc: failed to remove %s: %d\n", |
943 | codec_dai->name, err); | |
6b05eda6 | 944 | } |
f0fba2ad LG |
945 | codec_dai->probed = 0; |
946 | list_del(&codec_dai->card_list); | |
947 | } | |
6b05eda6 | 948 | |
f0fba2ad | 949 | /* remove the platform */ |
0168bf0d LG |
950 | if (platform && platform->probed && |
951 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
952 | if (platform->driver->remove) { |
953 | err = platform->driver->remove(platform); | |
954 | if (err < 0) | |
0837fc62 FE |
955 | pr_err("asoc: failed to remove %s: %d\n", |
956 | platform->name, err); | |
f0fba2ad | 957 | } |
675c496b LG |
958 | |
959 | /* Make sure all DAPM widgets are freed */ | |
960 | snd_soc_dapm_free(&platform->dapm); | |
961 | ||
731f1ab2 | 962 | soc_cleanup_platform_debugfs(platform); |
f0fba2ad LG |
963 | platform->probed = 0; |
964 | list_del(&platform->card_list); | |
965 | module_put(platform->dev->driver->owner); | |
966 | } | |
435c5e25 | 967 | |
f0fba2ad | 968 | /* remove the CODEC */ |
0168bf0d LG |
969 | if (codec && codec->probed && |
970 | codec->driver->remove_order == order) | |
589c3563 | 971 | soc_remove_codec(codec); |
db2a4165 | 972 | |
f0fba2ad | 973 | /* remove the cpu_dai */ |
0168bf0d LG |
974 | if (cpu_dai && cpu_dai->probed && |
975 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
976 | if (cpu_dai->driver->remove) { |
977 | err = cpu_dai->driver->remove(cpu_dai); | |
978 | if (err < 0) | |
0837fc62 FE |
979 | pr_err("asoc: failed to remove %s: %d\n", |
980 | cpu_dai->name, err); | |
db2a4165 | 981 | } |
f0fba2ad LG |
982 | cpu_dai->probed = 0; |
983 | list_del(&cpu_dai->card_list); | |
984 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 985 | } |
f0fba2ad | 986 | } |
db2a4165 | 987 | |
0671fd8e KM |
988 | static void soc_remove_dai_links(struct snd_soc_card *card) |
989 | { | |
0168bf0d | 990 | int dai, order; |
0671fd8e | 991 | |
0168bf0d LG |
992 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
993 | order++) { | |
994 | for (dai = 0; dai < card->num_rtd; dai++) | |
995 | soc_remove_dai_link(card, dai, order); | |
996 | } | |
0671fd8e KM |
997 | card->num_rtd = 0; |
998 | } | |
999 | ||
ead9b919 JN |
1000 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1001 | struct snd_soc_codec *codec) | |
1002 | { | |
1003 | int i; | |
1004 | ||
ff819b83 | 1005 | if (card->codec_conf == NULL) |
ead9b919 JN |
1006 | return; |
1007 | ||
ff819b83 DP |
1008 | for (i = 0; i < card->num_configs; i++) { |
1009 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1010 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1011 | codec->name_prefix = map->name_prefix; | |
1012 | break; | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | ||
589c3563 JN |
1017 | static int soc_probe_codec(struct snd_soc_card *card, |
1018 | struct snd_soc_codec *codec) | |
1019 | { | |
1020 | int ret = 0; | |
89b95ac0 | 1021 | const struct snd_soc_codec_driver *driver = codec->driver; |
888df395 | 1022 | struct snd_soc_dai *dai; |
589c3563 JN |
1023 | |
1024 | codec->card = card; | |
1025 | codec->dapm.card = card; | |
1026 | soc_set_name_prefix(card, codec); | |
1027 | ||
70d29331 JN |
1028 | if (!try_module_get(codec->dev->driver->owner)) |
1029 | return -ENODEV; | |
1030 | ||
d5d1e0be LPC |
1031 | soc_init_codec_debugfs(codec); |
1032 | ||
77530150 LPC |
1033 | if (driver->dapm_widgets) |
1034 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1035 | driver->num_dapm_widgets); | |
1036 | ||
888df395 MB |
1037 | /* Create DAPM widgets for each DAI stream */ |
1038 | list_for_each_entry(dai, &dai_list, list) { | |
1039 | if (dai->dev != codec->dev) | |
1040 | continue; | |
1041 | ||
1042 | snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); | |
1043 | } | |
1044 | ||
33c5f969 MB |
1045 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
1046 | ||
89b95ac0 MB |
1047 | if (driver->probe) { |
1048 | ret = driver->probe(codec); | |
589c3563 JN |
1049 | if (ret < 0) { |
1050 | dev_err(codec->dev, | |
1051 | "asoc: failed to probe CODEC %s: %d\n", | |
1052 | codec->name, ret); | |
70d29331 | 1053 | goto err_probe; |
589c3563 JN |
1054 | } |
1055 | } | |
1056 | ||
b7af1daf | 1057 | if (driver->controls) |
022658be | 1058 | snd_soc_add_codec_controls(codec, driver->controls, |
b7af1daf | 1059 | driver->num_controls); |
89b95ac0 MB |
1060 | if (driver->dapm_routes) |
1061 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1062 | driver->num_dapm_routes); | |
1063 | ||
589c3563 JN |
1064 | /* mark codec as probed and add to card codec list */ |
1065 | codec->probed = 1; | |
1066 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1067 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1068 | |
70d29331 JN |
1069 | return 0; |
1070 | ||
1071 | err_probe: | |
d5d1e0be | 1072 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1073 | module_put(codec->dev->driver->owner); |
1074 | ||
589c3563 JN |
1075 | return ret; |
1076 | } | |
1077 | ||
956245e9 LG |
1078 | static int soc_probe_platform(struct snd_soc_card *card, |
1079 | struct snd_soc_platform *platform) | |
1080 | { | |
1081 | int ret = 0; | |
1082 | const struct snd_soc_platform_driver *driver = platform->driver; | |
be09ad90 | 1083 | struct snd_soc_dai *dai; |
956245e9 LG |
1084 | |
1085 | platform->card = card; | |
b7950641 | 1086 | platform->dapm.card = card; |
956245e9 LG |
1087 | |
1088 | if (!try_module_get(platform->dev->driver->owner)) | |
1089 | return -ENODEV; | |
1090 | ||
731f1ab2 SG |
1091 | soc_init_platform_debugfs(platform); |
1092 | ||
cb2cf612 LG |
1093 | if (driver->dapm_widgets) |
1094 | snd_soc_dapm_new_controls(&platform->dapm, | |
1095 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1096 | ||
be09ad90 LG |
1097 | /* Create DAPM widgets for each DAI stream */ |
1098 | list_for_each_entry(dai, &dai_list, list) { | |
1099 | if (dai->dev != platform->dev) | |
1100 | continue; | |
1101 | ||
1102 | snd_soc_dapm_new_dai_widgets(&platform->dapm, dai); | |
1103 | } | |
1104 | ||
3fec6b6d SW |
1105 | platform->dapm.idle_bias_off = 1; |
1106 | ||
956245e9 LG |
1107 | if (driver->probe) { |
1108 | ret = driver->probe(platform); | |
1109 | if (ret < 0) { | |
1110 | dev_err(platform->dev, | |
1111 | "asoc: failed to probe platform %s: %d\n", | |
1112 | platform->name, ret); | |
1113 | goto err_probe; | |
1114 | } | |
1115 | } | |
1116 | ||
cb2cf612 LG |
1117 | if (driver->controls) |
1118 | snd_soc_add_platform_controls(platform, driver->controls, | |
1119 | driver->num_controls); | |
1120 | if (driver->dapm_routes) | |
1121 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1122 | driver->num_dapm_routes); | |
1123 | ||
956245e9 LG |
1124 | /* mark platform as probed and add to card platform list */ |
1125 | platform->probed = 1; | |
1126 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1127 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1128 | |
1129 | return 0; | |
1130 | ||
1131 | err_probe: | |
02db1103 | 1132 | soc_cleanup_platform_debugfs(platform); |
956245e9 LG |
1133 | module_put(platform->dev->driver->owner); |
1134 | ||
1135 | return ret; | |
1136 | } | |
1137 | ||
36ae1a96 MB |
1138 | static void rtd_release(struct device *dev) |
1139 | { | |
1140 | kfree(dev); | |
1141 | } | |
f0fba2ad | 1142 | |
589c3563 JN |
1143 | static int soc_post_component_init(struct snd_soc_card *card, |
1144 | struct snd_soc_codec *codec, | |
1145 | int num, int dailess) | |
1146 | { | |
1147 | struct snd_soc_dai_link *dai_link = NULL; | |
1148 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1149 | struct snd_soc_pcm_runtime *rtd; | |
1150 | const char *temp, *name; | |
1151 | int ret = 0; | |
1152 | ||
1153 | if (!dailess) { | |
1154 | dai_link = &card->dai_link[num]; | |
1155 | rtd = &card->rtd[num]; | |
1156 | name = dai_link->name; | |
1157 | } else { | |
1158 | aux_dev = &card->aux_dev[num]; | |
1159 | rtd = &card->rtd_aux[num]; | |
1160 | name = aux_dev->name; | |
1161 | } | |
0962bb21 | 1162 | rtd->card = card; |
589c3563 | 1163 | |
4b1cfcb4 MB |
1164 | /* Make sure all DAPM widgets are instantiated */ |
1165 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1166 | ||
589c3563 JN |
1167 | /* machine controls, routes and widgets are not prefixed */ |
1168 | temp = codec->name_prefix; | |
1169 | codec->name_prefix = NULL; | |
1170 | ||
1171 | /* do machine specific initialization */ | |
1172 | if (!dailess && dai_link->init) | |
1173 | ret = dai_link->init(rtd); | |
1174 | else if (dailess && aux_dev->init) | |
1175 | ret = aux_dev->init(&codec->dapm); | |
1176 | if (ret < 0) { | |
1177 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1178 | return ret; | |
1179 | } | |
1180 | codec->name_prefix = temp; | |
1181 | ||
589c3563 JN |
1182 | /* register the rtd device */ |
1183 | rtd->codec = codec; | |
36ae1a96 MB |
1184 | |
1185 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
1186 | if (!rtd->dev) | |
1187 | return -ENOMEM; | |
1188 | device_initialize(rtd->dev); | |
1189 | rtd->dev->parent = card->dev; | |
1190 | rtd->dev->release = rtd_release; | |
1191 | rtd->dev->init_name = name; | |
1192 | dev_set_drvdata(rtd->dev, rtd); | |
b8c0dab9 | 1193 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1194 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1195 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1196 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1197 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1198 | ret = device_add(rtd->dev); |
589c3563 JN |
1199 | if (ret < 0) { |
1200 | dev_err(card->dev, | |
1201 | "asoc: failed to register runtime device: %d\n", ret); | |
1202 | return ret; | |
1203 | } | |
1204 | rtd->dev_registered = 1; | |
1205 | ||
1206 | /* add DAPM sysfs entries for this codec */ | |
36ae1a96 | 1207 | ret = snd_soc_dapm_sys_add(rtd->dev); |
589c3563 JN |
1208 | if (ret < 0) |
1209 | dev_err(codec->dev, | |
1210 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1211 | ret); | |
1212 | ||
1213 | /* add codec sysfs entries */ | |
36ae1a96 | 1214 | ret = device_create_file(rtd->dev, &dev_attr_codec_reg); |
589c3563 JN |
1215 | if (ret < 0) |
1216 | dev_err(codec->dev, | |
1217 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1218 | ||
f86dcef8 LG |
1219 | #ifdef CONFIG_DEBUG_FS |
1220 | /* add DPCM sysfs entries */ | |
1221 | if (!dai_link->dynamic) | |
1222 | goto out; | |
1223 | ||
1224 | ret = soc_dpcm_debugfs_add(rtd); | |
1225 | if (ret < 0) | |
1226 | dev_err(rtd->dev, "asoc: failed to add dpcm sysfs entries: %d\n", ret); | |
1227 | ||
1228 | out: | |
1229 | #endif | |
589c3563 JN |
1230 | return 0; |
1231 | } | |
1232 | ||
0168bf0d | 1233 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1234 | { |
1235 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1236 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1237 | struct snd_soc_codec *codec = rtd->codec; | |
1238 | struct snd_soc_platform *platform = rtd->platform; | |
c74184ed MB |
1239 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
1240 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1241 | struct snd_soc_dapm_widget *play_w, *capture_w; | |
f0fba2ad LG |
1242 | int ret; |
1243 | ||
0168bf0d LG |
1244 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1245 | card->name, num, order); | |
f0fba2ad LG |
1246 | |
1247 | /* config components */ | |
f0fba2ad | 1248 | cpu_dai->platform = platform; |
f0fba2ad LG |
1249 | codec_dai->card = card; |
1250 | cpu_dai->card = card; | |
1251 | ||
1252 | /* set default power off timeout */ | |
1253 | rtd->pmdown_time = pmdown_time; | |
1254 | ||
1255 | /* probe the cpu_dai */ | |
0168bf0d LG |
1256 | if (!cpu_dai->probed && |
1257 | cpu_dai->driver->probe_order == order) { | |
be09ad90 | 1258 | cpu_dai->dapm.card = card; |
61b61e3c LG |
1259 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1260 | return -ENODEV; | |
1261 | ||
be09ad90 LG |
1262 | snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai); |
1263 | ||
f0fba2ad LG |
1264 | if (cpu_dai->driver->probe) { |
1265 | ret = cpu_dai->driver->probe(cpu_dai); | |
1266 | if (ret < 0) { | |
0837fc62 FE |
1267 | pr_err("asoc: failed to probe CPU DAI %s: %d\n", |
1268 | cpu_dai->name, ret); | |
61b61e3c | 1269 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1270 | return ret; |
1271 | } | |
1272 | } | |
1273 | cpu_dai->probed = 1; | |
1c8371d6 | 1274 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1275 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1276 | } |
1277 | ||
f0fba2ad | 1278 | /* probe the CODEC */ |
0168bf0d LG |
1279 | if (!codec->probed && |
1280 | codec->driver->probe_order == order) { | |
589c3563 JN |
1281 | ret = soc_probe_codec(card, codec); |
1282 | if (ret < 0) | |
1283 | return ret; | |
db2a4165 FM |
1284 | } |
1285 | ||
f0fba2ad | 1286 | /* probe the platform */ |
0168bf0d LG |
1287 | if (!platform->probed && |
1288 | platform->driver->probe_order == order) { | |
956245e9 LG |
1289 | ret = soc_probe_platform(card, platform); |
1290 | if (ret < 0) | |
1291 | return ret; | |
f0fba2ad | 1292 | } |
6ed25978 | 1293 | |
f0fba2ad | 1294 | /* probe the CODEC DAI */ |
0168bf0d | 1295 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1296 | if (codec_dai->driver->probe) { |
1297 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1298 | if (ret < 0) { |
0837fc62 FE |
1299 | pr_err("asoc: failed to probe CODEC DAI %s: %d\n", |
1300 | codec_dai->name, ret); | |
f0fba2ad | 1301 | return ret; |
fe3e78e0 MB |
1302 | } |
1303 | } | |
f0fba2ad | 1304 | |
1c8371d6 | 1305 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1306 | codec_dai->probed = 1; |
1307 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1308 | } |
1309 | ||
0168bf0d LG |
1310 | /* complete DAI probe during last probe */ |
1311 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1312 | return 0; | |
1313 | ||
589c3563 JN |
1314 | ret = soc_post_component_init(card, codec, num, 0); |
1315 | if (ret) | |
f0fba2ad | 1316 | return ret; |
fe3e78e0 | 1317 | |
36ae1a96 | 1318 | ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); |
f0fba2ad | 1319 | if (ret < 0) |
0837fc62 | 1320 | pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret); |
f0fba2ad | 1321 | |
c74184ed MB |
1322 | if (!dai_link->params) { |
1323 | /* create the pcm */ | |
1324 | ret = soc_new_pcm(rtd, num); | |
1325 | if (ret < 0) { | |
1326 | pr_err("asoc: can't create pcm %s :%d\n", | |
1327 | dai_link->stream_name, ret); | |
1328 | return ret; | |
1329 | } | |
1330 | } else { | |
1331 | /* link the DAI widgets */ | |
1332 | play_w = codec_dai->playback_widget; | |
1333 | capture_w = cpu_dai->capture_widget; | |
1334 | if (play_w && capture_w) { | |
1335 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1336 | capture_w, play_w); | |
1337 | if (ret != 0) { | |
1338 | dev_err(card->dev, "Can't link %s to %s: %d\n", | |
1339 | play_w->name, capture_w->name, ret); | |
1340 | return ret; | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | play_w = cpu_dai->playback_widget; | |
1345 | capture_w = codec_dai->capture_widget; | |
1346 | if (play_w && capture_w) { | |
1347 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1348 | capture_w, play_w); | |
1349 | if (ret != 0) { | |
1350 | dev_err(card->dev, "Can't link %s to %s: %d\n", | |
1351 | play_w->name, capture_w->name, ret); | |
1352 | return ret; | |
1353 | } | |
1354 | } | |
f0fba2ad LG |
1355 | } |
1356 | ||
1357 | /* add platform data for AC97 devices */ | |
1358 | if (rtd->codec_dai->driver->ac97_control) | |
1359 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1360 | ||
1361 | return 0; | |
1362 | } | |
1363 | ||
fe3e78e0 | 1364 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1365 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1366 | { | |
1367 | int ret; | |
1368 | ||
fe3e78e0 MB |
1369 | /* Only instantiate AC97 if not already done by the adaptor |
1370 | * for the generic AC97 subsystem. | |
1371 | */ | |
f0fba2ad | 1372 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1373 | /* |
1374 | * It is possible that the AC97 device is already registered to | |
1375 | * the device subsystem. This happens when the device is created | |
1376 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1377 | * is the generic AC97 glue but others migh emerge. | |
1378 | * | |
1379 | * In those cases we don't try to register the device again. | |
1380 | */ | |
1381 | if (!rtd->codec->ac97_created) | |
1382 | return 0; | |
f0fba2ad LG |
1383 | |
1384 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 | 1385 | if (ret < 0) { |
0837fc62 | 1386 | pr_err("asoc: AC97 device register failed:%d\n", ret); |
f0fba2ad | 1387 | return ret; |
fe3e78e0 | 1388 | } |
f0fba2ad LG |
1389 | |
1390 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1391 | } |
f0fba2ad LG |
1392 | return 0; |
1393 | } | |
1394 | ||
1395 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1396 | { | |
1397 | if (codec->ac97_registered) { | |
1398 | soc_ac97_dev_unregister(codec); | |
1399 | codec->ac97_registered = 0; | |
1400 | } | |
1401 | } | |
fe3e78e0 MB |
1402 | #endif |
1403 | ||
b19e6e7b MB |
1404 | static int soc_check_aux_dev(struct snd_soc_card *card, int num) |
1405 | { | |
1406 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
1407 | struct snd_soc_codec *codec; | |
1408 | ||
1409 | /* find CODEC from registered CODECs*/ | |
1410 | list_for_each_entry(codec, &codec_list, list) { | |
1411 | if (!strcmp(codec->name, aux_dev->codec_name)) | |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | return -EPROBE_DEFER; | |
1416 | } | |
1417 | ||
2eea392d JN |
1418 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1419 | { | |
1420 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1421 | struct snd_soc_codec *codec; |
676ad98a | 1422 | int ret = -ENODEV; |
2eea392d JN |
1423 | |
1424 | /* find CODEC from registered CODECs*/ | |
1425 | list_for_each_entry(codec, &codec_list, list) { | |
1426 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1427 | if (codec->probed) { | |
1428 | dev_err(codec->dev, | |
1429 | "asoc: codec already probed"); | |
1430 | ret = -EBUSY; | |
1431 | goto out; | |
1432 | } | |
676ad98a | 1433 | goto found; |
2eea392d JN |
1434 | } |
1435 | } | |
676ad98a JN |
1436 | /* codec not found */ |
1437 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
b19e6e7b | 1438 | return -EPROBE_DEFER; |
2eea392d | 1439 | |
676ad98a | 1440 | found: |
589c3563 | 1441 | ret = soc_probe_codec(card, codec); |
2eea392d | 1442 | if (ret < 0) |
589c3563 | 1443 | return ret; |
2eea392d | 1444 | |
589c3563 | 1445 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1446 | |
1447 | out: | |
1448 | return ret; | |
1449 | } | |
1450 | ||
1451 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1452 | { | |
1453 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1454 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1455 | |
1456 | /* unregister the rtd device */ | |
1457 | if (rtd->dev_registered) { | |
36ae1a96 MB |
1458 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
1459 | device_del(rtd->dev); | |
2eea392d JN |
1460 | rtd->dev_registered = 0; |
1461 | } | |
1462 | ||
589c3563 JN |
1463 | if (codec && codec->probed) |
1464 | soc_remove_codec(codec); | |
2eea392d JN |
1465 | } |
1466 | ||
fdf0f54d DP |
1467 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1468 | enum snd_soc_compress_type compress_type) | |
1469 | { | |
1470 | int ret; | |
1471 | ||
1472 | if (codec->cache_init) | |
1473 | return 0; | |
1474 | ||
1475 | /* override the compress_type if necessary */ | |
1476 | if (compress_type && codec->compress_type != compress_type) | |
1477 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1478 | ret = snd_soc_cache_init(codec); |
1479 | if (ret < 0) { | |
1480 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1481 | ret); | |
1482 | return ret; | |
1483 | } | |
1484 | codec->cache_init = 1; | |
1485 | return 0; | |
1486 | } | |
1487 | ||
b19e6e7b | 1488 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1489 | { |
fdf0f54d DP |
1490 | struct snd_soc_codec *codec; |
1491 | struct snd_soc_codec_conf *codec_conf; | |
1492 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1493 | struct snd_soc_dai_link *dai_link; |
f04209a7 | 1494 | int ret, i, order, dai_fmt; |
fe3e78e0 | 1495 | |
01b9d99a | 1496 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1497 | |
f0fba2ad | 1498 | /* bind DAIs */ |
b19e6e7b MB |
1499 | for (i = 0; i < card->num_links; i++) { |
1500 | ret = soc_bind_dai_link(card, i); | |
1501 | if (ret != 0) | |
1502 | goto base_error; | |
1503 | } | |
fe3e78e0 | 1504 | |
b19e6e7b MB |
1505 | /* check aux_devs too */ |
1506 | for (i = 0; i < card->num_aux_devs; i++) { | |
1507 | ret = soc_check_aux_dev(card, i); | |
1508 | if (ret != 0) | |
1509 | goto base_error; | |
f0fba2ad | 1510 | } |
435c5e25 | 1511 | |
fdf0f54d DP |
1512 | /* initialize the register cache for each available codec */ |
1513 | list_for_each_entry(codec, &codec_list, list) { | |
1514 | if (codec->cache_init) | |
1515 | continue; | |
861f2faf DP |
1516 | /* by default we don't override the compress_type */ |
1517 | compress_type = 0; | |
fdf0f54d DP |
1518 | /* check to see if we need to override the compress_type */ |
1519 | for (i = 0; i < card->num_configs; ++i) { | |
1520 | codec_conf = &card->codec_conf[i]; | |
1521 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1522 | compress_type = codec_conf->compress_type; | |
1523 | if (compress_type && compress_type | |
1524 | != codec->compress_type) | |
1525 | break; | |
1526 | } | |
1527 | } | |
fdf0f54d | 1528 | ret = snd_soc_init_codec_cache(codec, compress_type); |
b19e6e7b MB |
1529 | if (ret < 0) |
1530 | goto base_error; | |
fdf0f54d DP |
1531 | } |
1532 | ||
f0fba2ad LG |
1533 | /* card bind complete so register a sound card */ |
1534 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1535 | card->owner, 0, &card->snd_card); | |
1536 | if (ret < 0) { | |
0837fc62 FE |
1537 | pr_err("asoc: can't create sound card for card %s: %d\n", |
1538 | card->name, ret); | |
b19e6e7b | 1539 | goto base_error; |
f0fba2ad LG |
1540 | } |
1541 | card->snd_card->dev = card->dev; | |
1542 | ||
e37a4970 MB |
1543 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1544 | card->dapm.dev = card->dev; | |
1545 | card->dapm.card = card; | |
1546 | list_add(&card->dapm.list, &card->dapm_list); | |
1547 | ||
d5d1e0be LPC |
1548 | #ifdef CONFIG_DEBUG_FS |
1549 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1550 | #endif | |
1551 | ||
88ee1c61 | 1552 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1553 | /* deferred resume work */ |
1554 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1555 | #endif | |
db2a4165 | 1556 | |
9a841ebb MB |
1557 | if (card->dapm_widgets) |
1558 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1559 | card->num_dapm_widgets); | |
1560 | ||
f0fba2ad LG |
1561 | /* initialise the sound card only once */ |
1562 | if (card->probe) { | |
e7361ec4 | 1563 | ret = card->probe(card); |
f0fba2ad LG |
1564 | if (ret < 0) |
1565 | goto card_probe_error; | |
1566 | } | |
fe3e78e0 | 1567 | |
0168bf0d LG |
1568 | /* early DAI link probe */ |
1569 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1570 | order++) { | |
1571 | for (i = 0; i < card->num_links; i++) { | |
1572 | ret = soc_probe_dai_link(card, i, order); | |
1573 | if (ret < 0) { | |
1574 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1575 | card->name, ret); |
0168bf0d LG |
1576 | goto probe_dai_err; |
1577 | } | |
f0fba2ad LG |
1578 | } |
1579 | } | |
db2a4165 | 1580 | |
2eea392d JN |
1581 | for (i = 0; i < card->num_aux_devs; i++) { |
1582 | ret = soc_probe_aux_dev(card, i); | |
1583 | if (ret < 0) { | |
1584 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1585 | card->name, ret); | |
1586 | goto probe_aux_dev_err; | |
1587 | } | |
1588 | } | |
1589 | ||
888df395 MB |
1590 | snd_soc_dapm_link_dai_widgets(card); |
1591 | ||
b7af1daf | 1592 | if (card->controls) |
022658be | 1593 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1594 | |
b8ad29de MB |
1595 | if (card->dapm_routes) |
1596 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1597 | card->num_dapm_routes); | |
1598 | ||
b90d2f90 MB |
1599 | snd_soc_dapm_new_widgets(&card->dapm); |
1600 | ||
75d9ac46 MB |
1601 | for (i = 0; i < card->num_links; i++) { |
1602 | dai_link = &card->dai_link[i]; | |
f04209a7 | 1603 | dai_fmt = dai_link->dai_fmt; |
75d9ac46 | 1604 | |
f04209a7 | 1605 | if (dai_fmt) { |
75d9ac46 | 1606 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, |
f04209a7 | 1607 | dai_fmt); |
5e4ba569 | 1608 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1609 | dev_warn(card->rtd[i].codec_dai->dev, |
1610 | "Failed to set DAI format: %d\n", | |
1611 | ret); | |
f04209a7 MB |
1612 | } |
1613 | ||
1614 | /* If this is a regular CPU link there will be a platform */ | |
1615 | if (dai_fmt && dai_link->platform_name) { | |
1616 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
1617 | dai_fmt); | |
1618 | if (ret != 0 && ret != -ENOTSUPP) | |
1619 | dev_warn(card->rtd[i].cpu_dai->dev, | |
1620 | "Failed to set DAI format: %d\n", | |
1621 | ret); | |
1622 | } else if (dai_fmt) { | |
1623 | /* Flip the polarity for the "CPU" end */ | |
1624 | dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK; | |
1625 | switch (dai_link->dai_fmt & | |
1626 | SND_SOC_DAIFMT_MASTER_MASK) { | |
1627 | case SND_SOC_DAIFMT_CBM_CFM: | |
1628 | dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1629 | break; | |
1630 | case SND_SOC_DAIFMT_CBM_CFS: | |
1631 | dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1632 | break; | |
1633 | case SND_SOC_DAIFMT_CBS_CFM: | |
1634 | dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1635 | break; | |
1636 | case SND_SOC_DAIFMT_CBS_CFS: | |
1637 | dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1638 | break; | |
1639 | } | |
75d9ac46 MB |
1640 | |
1641 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
f04209a7 | 1642 | dai_fmt); |
5e4ba569 | 1643 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1644 | dev_warn(card->rtd[i].cpu_dai->dev, |
1645 | "Failed to set DAI format: %d\n", | |
1646 | ret); | |
1647 | } | |
1648 | } | |
1649 | ||
f0fba2ad | 1650 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1651 | "%s", card->name); |
22de71ba LG |
1652 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1653 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1654 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1655 | "%s", card->driver_name ? card->driver_name : card->name); | |
1656 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1657 | switch (card->snd_card->driver[i]) { | |
1658 | case '_': | |
1659 | case '-': | |
1660 | case '\0': | |
1661 | break; | |
1662 | default: | |
1663 | if (!isalnum(card->snd_card->driver[i])) | |
1664 | card->snd_card->driver[i] = '_'; | |
1665 | break; | |
1666 | } | |
1667 | } | |
f0fba2ad | 1668 | |
28e9ad92 MB |
1669 | if (card->late_probe) { |
1670 | ret = card->late_probe(card); | |
1671 | if (ret < 0) { | |
1672 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1673 | card->name, ret); | |
1674 | goto probe_aux_dev_err; | |
1675 | } | |
1676 | } | |
1677 | ||
2dc00213 MB |
1678 | snd_soc_dapm_new_widgets(&card->dapm); |
1679 | ||
1633281b | 1680 | if (card->fully_routed) |
b05d8dc1 | 1681 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1682 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1683 | ||
f0fba2ad LG |
1684 | ret = snd_card_register(card->snd_card); |
1685 | if (ret < 0) { | |
0837fc62 FE |
1686 | pr_err("asoc: failed to register soundcard for %s: %d\n", |
1687 | card->name, ret); | |
6b3ed785 | 1688 | goto probe_aux_dev_err; |
db2a4165 FM |
1689 | } |
1690 | ||
f0fba2ad LG |
1691 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1692 | /* register any AC97 codecs */ | |
1693 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1694 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1695 | if (ret < 0) { | |
0837fc62 FE |
1696 | pr_err("asoc: failed to register AC97 %s: %d\n", |
1697 | card->name, ret); | |
6b3ed785 | 1698 | while (--i >= 0) |
7d8316df | 1699 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1700 | goto probe_aux_dev_err; |
f0fba2ad | 1701 | } |
6b3ed785 | 1702 | } |
f0fba2ad LG |
1703 | #endif |
1704 | ||
1705 | card->instantiated = 1; | |
4f4c0072 | 1706 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1707 | mutex_unlock(&card->mutex); |
b19e6e7b MB |
1708 | |
1709 | return 0; | |
f0fba2ad | 1710 | |
2eea392d JN |
1711 | probe_aux_dev_err: |
1712 | for (i = 0; i < card->num_aux_devs; i++) | |
1713 | soc_remove_aux_dev(card, i); | |
1714 | ||
f0fba2ad | 1715 | probe_dai_err: |
0671fd8e | 1716 | soc_remove_dai_links(card); |
f0fba2ad LG |
1717 | |
1718 | card_probe_error: | |
87506549 | 1719 | if (card->remove) |
e7361ec4 | 1720 | card->remove(card); |
f0fba2ad LG |
1721 | |
1722 | snd_card_free(card->snd_card); | |
1723 | ||
b19e6e7b | 1724 | base_error: |
f0fba2ad | 1725 | mutex_unlock(&card->mutex); |
db2a4165 | 1726 | |
b19e6e7b | 1727 | return ret; |
435c5e25 MB |
1728 | } |
1729 | ||
1730 | /* probes a new socdev */ | |
1731 | static int soc_probe(struct platform_device *pdev) | |
1732 | { | |
f0fba2ad | 1733 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1734 | int ret = 0; |
435c5e25 | 1735 | |
70a7ca34 VK |
1736 | /* |
1737 | * no card, so machine driver should be registering card | |
1738 | * we should not be here in that case so ret error | |
1739 | */ | |
1740 | if (!card) | |
1741 | return -EINVAL; | |
1742 | ||
fe4085e8 MB |
1743 | dev_warn(&pdev->dev, |
1744 | "ASoC machine %s should use snd_soc_register_card()\n", | |
1745 | card->name); | |
1746 | ||
435c5e25 MB |
1747 | /* Bodge while we unpick instantiation */ |
1748 | card->dev = &pdev->dev; | |
f0fba2ad | 1749 | |
435c5e25 MB |
1750 | ret = snd_soc_register_card(card); |
1751 | if (ret != 0) { | |
1752 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1753 | return ret; | |
1754 | } | |
1755 | ||
1756 | return 0; | |
db2a4165 FM |
1757 | } |
1758 | ||
b0e26485 | 1759 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1760 | { |
1761 | int i; | |
db2a4165 | 1762 | |
b0e26485 VK |
1763 | /* make sure any delayed work runs */ |
1764 | for (i = 0; i < card->num_rtd; i++) { | |
1765 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1766 | flush_delayed_work_sync(&rtd->delayed_work); | |
1767 | } | |
914dc182 | 1768 | |
b0e26485 VK |
1769 | /* remove auxiliary devices */ |
1770 | for (i = 0; i < card->num_aux_devs; i++) | |
1771 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1772 | |
b0e26485 | 1773 | /* remove and free each DAI */ |
0671fd8e | 1774 | soc_remove_dai_links(card); |
2eea392d | 1775 | |
b0e26485 | 1776 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1777 | |
b0e26485 VK |
1778 | /* remove the card */ |
1779 | if (card->remove) | |
e7361ec4 | 1780 | card->remove(card); |
a6052154 | 1781 | |
0aaae527 LPC |
1782 | snd_soc_dapm_free(&card->dapm); |
1783 | ||
b0e26485 VK |
1784 | snd_card_free(card->snd_card); |
1785 | return 0; | |
1786 | ||
1787 | } | |
1788 | ||
1789 | /* removes a socdev */ | |
1790 | static int soc_remove(struct platform_device *pdev) | |
1791 | { | |
1792 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1793 | |
c5af3a2e | 1794 | snd_soc_unregister_card(card); |
db2a4165 FM |
1795 | return 0; |
1796 | } | |
1797 | ||
6f8ab4ac | 1798 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1799 | { |
6f8ab4ac | 1800 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1801 | int i; |
51737470 MB |
1802 | |
1803 | if (!card->instantiated) | |
416356fc | 1804 | return 0; |
51737470 MB |
1805 | |
1806 | /* Flush out pmdown_time work - we actually do want to run it | |
1807 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1808 | for (i = 0; i < card->num_rtd; i++) { |
1809 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1810 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1811 | } |
51737470 | 1812 | |
f0fba2ad | 1813 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1814 | |
1815 | return 0; | |
51737470 | 1816 | } |
6f8ab4ac | 1817 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1818 | |
6f8ab4ac | 1819 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1820 | .suspend = snd_soc_suspend, |
1821 | .resume = snd_soc_resume, | |
1822 | .freeze = snd_soc_suspend, | |
1823 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1824 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1825 | .restore = snd_soc_resume, |
416356fc | 1826 | }; |
deb2607e | 1827 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1828 | |
db2a4165 FM |
1829 | /* ASoC platform driver */ |
1830 | static struct platform_driver soc_driver = { | |
1831 | .driver = { | |
1832 | .name = "soc-audio", | |
8b45a209 | 1833 | .owner = THIS_MODULE, |
6f8ab4ac | 1834 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1835 | }, |
1836 | .probe = soc_probe, | |
1837 | .remove = soc_remove, | |
db2a4165 FM |
1838 | }; |
1839 | ||
096e49d5 MB |
1840 | /** |
1841 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1842 | * | |
1843 | * @codec: CODEC to query. | |
1844 | * @reg: Register to query. | |
1845 | * | |
1846 | * Boolean function indiciating if a CODEC register is volatile. | |
1847 | */ | |
181e055e MB |
1848 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1849 | unsigned int reg) | |
096e49d5 | 1850 | { |
1500b7b5 DP |
1851 | if (codec->volatile_register) |
1852 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1853 | else |
1854 | return 0; | |
1855 | } | |
1856 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1857 | ||
239c9706 DP |
1858 | /** |
1859 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1860 | * | |
1861 | * @codec: CODEC to query. | |
1862 | * @reg: Register to query. | |
1863 | * | |
1864 | * Boolean function indicating if a CODEC register is readable. | |
1865 | */ | |
1866 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1867 | unsigned int reg) | |
1868 | { | |
1869 | if (codec->readable_register) | |
1870 | return codec->readable_register(codec, reg); | |
1871 | else | |
63fa0a28 | 1872 | return 1; |
239c9706 DP |
1873 | } |
1874 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1875 | ||
1876 | /** | |
1877 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1878 | * | |
1879 | * @codec: CODEC to query. | |
1880 | * @reg: Register to query. | |
1881 | * | |
1882 | * Boolean function indicating if a CODEC register is writable. | |
1883 | */ | |
1884 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1885 | unsigned int reg) | |
1886 | { | |
1887 | if (codec->writable_register) | |
1888 | return codec->writable_register(codec, reg); | |
1889 | else | |
63fa0a28 | 1890 | return 1; |
239c9706 DP |
1891 | } |
1892 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1893 | ||
f1442bc1 LG |
1894 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1895 | unsigned int reg) | |
1896 | { | |
1897 | unsigned int ret; | |
1898 | ||
1899 | if (!platform->driver->read) { | |
1900 | dev_err(platform->dev, "platform has no read back\n"); | |
1901 | return -1; | |
1902 | } | |
1903 | ||
1904 | ret = platform->driver->read(platform, reg); | |
1905 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1906 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1907 | |
1908 | return ret; | |
1909 | } | |
1910 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1911 | ||
1912 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1913 | unsigned int reg, unsigned int val) | |
1914 | { | |
1915 | if (!platform->driver->write) { | |
1916 | dev_err(platform->dev, "platform has no write back\n"); | |
1917 | return -1; | |
1918 | } | |
1919 | ||
1920 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1921 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1922 | return platform->driver->write(platform, reg, val); |
1923 | } | |
1924 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1925 | ||
db2a4165 FM |
1926 | /** |
1927 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1928 | * @codec: audio codec | |
1929 | * @ops: AC97 bus operations | |
1930 | * @num: AC97 codec number | |
1931 | * | |
1932 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1933 | */ | |
1934 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1935 | struct snd_ac97_bus_ops *ops, int num) | |
1936 | { | |
1937 | mutex_lock(&codec->mutex); | |
1938 | ||
1939 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1940 | if (codec->ac97 == NULL) { | |
1941 | mutex_unlock(&codec->mutex); | |
1942 | return -ENOMEM; | |
1943 | } | |
1944 | ||
1945 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1946 | if (codec->ac97->bus == NULL) { | |
1947 | kfree(codec->ac97); | |
1948 | codec->ac97 = NULL; | |
1949 | mutex_unlock(&codec->mutex); | |
1950 | return -ENOMEM; | |
1951 | } | |
1952 | ||
1953 | codec->ac97->bus->ops = ops; | |
1954 | codec->ac97->num = num; | |
0562f788 MW |
1955 | |
1956 | /* | |
1957 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1958 | * device will be registered with the device subsystem later on. | |
1959 | */ | |
1960 | codec->ac97_created = 1; | |
1961 | ||
db2a4165 FM |
1962 | mutex_unlock(&codec->mutex); |
1963 | return 0; | |
1964 | } | |
1965 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1966 | ||
1967 | /** | |
1968 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1969 | * @codec: audio codec | |
1970 | * | |
1971 | * Frees AC97 codec device resources. | |
1972 | */ | |
1973 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1974 | { | |
1975 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1976 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1977 | soc_unregister_ac97_dai_link(codec); | |
1978 | #endif | |
db2a4165 FM |
1979 | kfree(codec->ac97->bus); |
1980 | kfree(codec->ac97); | |
1981 | codec->ac97 = NULL; | |
0562f788 | 1982 | codec->ac97_created = 0; |
db2a4165 FM |
1983 | mutex_unlock(&codec->mutex); |
1984 | } | |
1985 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1986 | ||
c3753707 MB |
1987 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1988 | { | |
1989 | unsigned int ret; | |
1990 | ||
c3acec26 | 1991 | ret = codec->read(codec, reg); |
c3753707 | 1992 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1993 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1994 | |
1995 | return ret; | |
1996 | } | |
1997 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1998 | ||
1999 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2000 | unsigned int reg, unsigned int val) | |
2001 | { | |
2002 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2003 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2004 | return codec->write(codec, reg, val); |
c3753707 MB |
2005 | } |
2006 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2007 | ||
5fb609d4 DP |
2008 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
2009 | unsigned int reg, const void *data, size_t len) | |
2010 | { | |
2011 | return codec->bulk_write_raw(codec, reg, data, len); | |
2012 | } | |
2013 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
2014 | ||
db2a4165 FM |
2015 | /** |
2016 | * snd_soc_update_bits - update codec register bits | |
2017 | * @codec: audio codec | |
2018 | * @reg: codec register | |
2019 | * @mask: register mask | |
2020 | * @value: new value | |
2021 | * | |
2022 | * Writes new register value. | |
2023 | * | |
180c329d | 2024 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2025 | */ |
2026 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2027 | unsigned int mask, unsigned int value) |
db2a4165 | 2028 | { |
8a713da8 | 2029 | bool change; |
46f5822f | 2030 | unsigned int old, new; |
180c329d TT |
2031 | int ret; |
2032 | ||
8a713da8 MB |
2033 | if (codec->using_regmap) { |
2034 | ret = regmap_update_bits_check(codec->control_data, reg, | |
2035 | mask, value, &change); | |
2036 | } else { | |
2037 | ret = snd_soc_read(codec, reg); | |
180c329d TT |
2038 | if (ret < 0) |
2039 | return ret; | |
8a713da8 MB |
2040 | |
2041 | old = ret; | |
2042 | new = (old & ~mask) | (value & mask); | |
2043 | change = old != new; | |
2044 | if (change) | |
2045 | ret = snd_soc_write(codec, reg, new); | |
180c329d | 2046 | } |
db2a4165 | 2047 | |
8a713da8 MB |
2048 | if (ret < 0) |
2049 | return ret; | |
2050 | ||
db2a4165 FM |
2051 | return change; |
2052 | } | |
2053 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2054 | ||
6c508c62 EN |
2055 | /** |
2056 | * snd_soc_update_bits_locked - update codec register bits | |
2057 | * @codec: audio codec | |
2058 | * @reg: codec register | |
2059 | * @mask: register mask | |
2060 | * @value: new value | |
2061 | * | |
2062 | * Writes new register value, and takes the codec mutex. | |
2063 | * | |
2064 | * Returns 1 for change else 0. | |
2065 | */ | |
dd1b3d53 MB |
2066 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2067 | unsigned short reg, unsigned int mask, | |
2068 | unsigned int value) | |
6c508c62 EN |
2069 | { |
2070 | int change; | |
2071 | ||
2072 | mutex_lock(&codec->mutex); | |
2073 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2074 | mutex_unlock(&codec->mutex); | |
2075 | ||
2076 | return change; | |
2077 | } | |
dd1b3d53 | 2078 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2079 | |
db2a4165 FM |
2080 | /** |
2081 | * snd_soc_test_bits - test register for change | |
2082 | * @codec: audio codec | |
2083 | * @reg: codec register | |
2084 | * @mask: register mask | |
2085 | * @value: new value | |
2086 | * | |
2087 | * Tests a register with a new value and checks if the new value is | |
2088 | * different from the old value. | |
2089 | * | |
2090 | * Returns 1 for change else 0. | |
2091 | */ | |
2092 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2093 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2094 | { |
2095 | int change; | |
46f5822f | 2096 | unsigned int old, new; |
db2a4165 | 2097 | |
db2a4165 FM |
2098 | old = snd_soc_read(codec, reg); |
2099 | new = (old & ~mask) | value; | |
2100 | change = old != new; | |
db2a4165 FM |
2101 | |
2102 | return change; | |
2103 | } | |
2104 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2105 | ||
db2a4165 FM |
2106 | /** |
2107 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2108 | * @substream: the pcm substream | |
2109 | * @hw: the hardware parameters | |
2110 | * | |
2111 | * Sets the substream runtime hardware parameters. | |
2112 | */ | |
2113 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2114 | const struct snd_pcm_hardware *hw) | |
2115 | { | |
2116 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2117 | runtime->hw.info = hw->info; | |
2118 | runtime->hw.formats = hw->formats; | |
2119 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2120 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2121 | runtime->hw.periods_min = hw->periods_min; | |
2122 | runtime->hw.periods_max = hw->periods_max; | |
2123 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2124 | runtime->hw.fifo_size = hw->fifo_size; | |
2125 | return 0; | |
2126 | } | |
2127 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2128 | ||
2129 | /** | |
2130 | * snd_soc_cnew - create new control | |
2131 | * @_template: control template | |
2132 | * @data: control private data | |
ac11a2b3 | 2133 | * @long_name: control long name |
efb7ac3f | 2134 | * @prefix: control name prefix |
db2a4165 FM |
2135 | * |
2136 | * Create a new mixer control from a template control. | |
2137 | * | |
2138 | * Returns 0 for success, else error. | |
2139 | */ | |
2140 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2141 | void *data, const char *long_name, |
efb7ac3f | 2142 | const char *prefix) |
db2a4165 FM |
2143 | { |
2144 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2145 | struct snd_kcontrol *kcontrol; |
2146 | char *name = NULL; | |
2147 | int name_len; | |
db2a4165 FM |
2148 | |
2149 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2150 | template.index = 0; |
2151 | ||
efb7ac3f MB |
2152 | if (!long_name) |
2153 | long_name = template.name; | |
2154 | ||
2155 | if (prefix) { | |
2156 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 2157 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
2158 | if (!name) |
2159 | return NULL; | |
2160 | ||
2161 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2162 | ||
2163 | template.name = name; | |
2164 | } else { | |
2165 | template.name = long_name; | |
2166 | } | |
2167 | ||
2168 | kcontrol = snd_ctl_new1(&template, data); | |
2169 | ||
2170 | kfree(name); | |
2171 | ||
2172 | return kcontrol; | |
db2a4165 FM |
2173 | } |
2174 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2175 | ||
022658be LG |
2176 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2177 | const struct snd_kcontrol_new *controls, int num_controls, | |
2178 | const char *prefix, void *data) | |
2179 | { | |
2180 | int err, i; | |
2181 | ||
2182 | for (i = 0; i < num_controls; i++) { | |
2183 | const struct snd_kcontrol_new *control = &controls[i]; | |
2184 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2185 | control->name, prefix)); | |
2186 | if (err < 0) { | |
2187 | dev_err(dev, "Failed to add %s: %d\n", control->name, err); | |
2188 | return err; | |
2189 | } | |
2190 | } | |
2191 | ||
2192 | return 0; | |
2193 | } | |
2194 | ||
3e8e1952 | 2195 | /** |
022658be LG |
2196 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2197 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2198 | * duplicating this code. |
2199 | * | |
2200 | * @codec: codec to add controls to | |
2201 | * @controls: array of controls to add | |
2202 | * @num_controls: number of elements in the array | |
2203 | * | |
2204 | * Return 0 for success, else error. | |
2205 | */ | |
022658be | 2206 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
3e8e1952 IM |
2207 | const struct snd_kcontrol_new *controls, int num_controls) |
2208 | { | |
f0fba2ad | 2209 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 | 2210 | |
022658be LG |
2211 | return snd_soc_add_controls(card, codec->dev, controls, num_controls, |
2212 | codec->name_prefix, codec); | |
3e8e1952 | 2213 | } |
022658be | 2214 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2215 | |
a491a5c8 LG |
2216 | /** |
2217 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2218 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2219 | * |
2220 | * @platform: platform to add controls to | |
2221 | * @controls: array of controls to add | |
2222 | * @num_controls: number of elements in the array | |
2223 | * | |
2224 | * Return 0 for success, else error. | |
2225 | */ | |
2226 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2227 | const struct snd_kcontrol_new *controls, int num_controls) | |
2228 | { | |
2229 | struct snd_card *card = platform->card->snd_card; | |
a491a5c8 | 2230 | |
022658be LG |
2231 | return snd_soc_add_controls(card, platform->dev, controls, num_controls, |
2232 | NULL, platform); | |
a491a5c8 LG |
2233 | } |
2234 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2235 | ||
022658be LG |
2236 | /** |
2237 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2238 | * Convenience function to add a list of controls. | |
2239 | * | |
2240 | * @soc_card: SoC card to add controls to | |
2241 | * @controls: array of controls to add | |
2242 | * @num_controls: number of elements in the array | |
2243 | * | |
2244 | * Return 0 for success, else error. | |
2245 | */ | |
2246 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2247 | const struct snd_kcontrol_new *controls, int num_controls) | |
2248 | { | |
2249 | struct snd_card *card = soc_card->snd_card; | |
2250 | ||
2251 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2252 | NULL, soc_card); | |
2253 | } | |
2254 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2255 | ||
2256 | /** | |
2257 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2258 | * Convienience function to add a list of controls. | |
2259 | * | |
2260 | * @dai: DAI to add controls to | |
2261 | * @controls: array of controls to add | |
2262 | * @num_controls: number of elements in the array | |
2263 | * | |
2264 | * Return 0 for success, else error. | |
2265 | */ | |
2266 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2267 | const struct snd_kcontrol_new *controls, int num_controls) | |
2268 | { | |
2269 | struct snd_card *card = dai->card->snd_card; | |
2270 | ||
2271 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2272 | NULL, dai); | |
2273 | } | |
2274 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2275 | ||
db2a4165 FM |
2276 | /** |
2277 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2278 | * @kcontrol: mixer control | |
2279 | * @uinfo: control element information | |
2280 | * | |
2281 | * Callback to provide information about a double enumerated | |
2282 | * mixer control. | |
2283 | * | |
2284 | * Returns 0 for success. | |
2285 | */ | |
2286 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2287 | struct snd_ctl_elem_info *uinfo) | |
2288 | { | |
2289 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2290 | ||
2291 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2292 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2293 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2294 | |
f8ba0b7b JS |
2295 | if (uinfo->value.enumerated.item > e->max - 1) |
2296 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2297 | strcpy(uinfo->value.enumerated.name, |
2298 | e->texts[uinfo->value.enumerated.item]); | |
2299 | return 0; | |
2300 | } | |
2301 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2302 | ||
2303 | /** | |
2304 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2305 | * @kcontrol: mixer control | |
ac11a2b3 | 2306 | * @ucontrol: control element information |
db2a4165 FM |
2307 | * |
2308 | * Callback to get the value of a double enumerated mixer. | |
2309 | * | |
2310 | * Returns 0 for success. | |
2311 | */ | |
2312 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2313 | struct snd_ctl_elem_value *ucontrol) | |
2314 | { | |
2315 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2316 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2317 | unsigned int val, bitmask; |
db2a4165 | 2318 | |
f8ba0b7b | 2319 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2320 | ; |
2321 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2322 | ucontrol->value.enumerated.item[0] |
2323 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2324 | if (e->shift_l != e->shift_r) |
2325 | ucontrol->value.enumerated.item[1] = | |
2326 | (val >> e->shift_r) & (bitmask - 1); | |
2327 | ||
2328 | return 0; | |
2329 | } | |
2330 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2331 | ||
2332 | /** | |
2333 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2334 | * @kcontrol: mixer control | |
ac11a2b3 | 2335 | * @ucontrol: control element information |
db2a4165 FM |
2336 | * |
2337 | * Callback to set the value of a double enumerated mixer. | |
2338 | * | |
2339 | * Returns 0 for success. | |
2340 | */ | |
2341 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2342 | struct snd_ctl_elem_value *ucontrol) | |
2343 | { | |
2344 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2345 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2346 | unsigned int val; |
2347 | unsigned int mask, bitmask; | |
db2a4165 | 2348 | |
f8ba0b7b | 2349 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2350 | ; |
f8ba0b7b | 2351 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2352 | return -EINVAL; |
2353 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2354 | mask = (bitmask - 1) << e->shift_l; | |
2355 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2356 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2357 | return -EINVAL; |
2358 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2359 | mask |= (bitmask - 1) << e->shift_r; | |
2360 | } | |
2361 | ||
6c508c62 | 2362 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2363 | } |
2364 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2365 | ||
2e72f8e3 PU |
2366 | /** |
2367 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2368 | * @kcontrol: mixer control | |
2369 | * @ucontrol: control element information | |
2370 | * | |
2371 | * Callback to get the value of a double semi enumerated mixer. | |
2372 | * | |
2373 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2374 | * used for handling bitfield coded enumeration for example. | |
2375 | * | |
2376 | * Returns 0 for success. | |
2377 | */ | |
2378 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2379 | struct snd_ctl_elem_value *ucontrol) | |
2380 | { | |
2381 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2382 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2383 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2384 | |
2385 | reg_val = snd_soc_read(codec, e->reg); | |
2386 | val = (reg_val >> e->shift_l) & e->mask; | |
2387 | for (mux = 0; mux < e->max; mux++) { | |
2388 | if (val == e->values[mux]) | |
2389 | break; | |
2390 | } | |
2391 | ucontrol->value.enumerated.item[0] = mux; | |
2392 | if (e->shift_l != e->shift_r) { | |
2393 | val = (reg_val >> e->shift_r) & e->mask; | |
2394 | for (mux = 0; mux < e->max; mux++) { | |
2395 | if (val == e->values[mux]) | |
2396 | break; | |
2397 | } | |
2398 | ucontrol->value.enumerated.item[1] = mux; | |
2399 | } | |
2400 | ||
2401 | return 0; | |
2402 | } | |
2403 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2404 | ||
2405 | /** | |
2406 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2407 | * @kcontrol: mixer control | |
2408 | * @ucontrol: control element information | |
2409 | * | |
2410 | * Callback to set the value of a double semi enumerated mixer. | |
2411 | * | |
2412 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2413 | * used for handling bitfield coded enumeration for example. | |
2414 | * | |
2415 | * Returns 0 for success. | |
2416 | */ | |
2417 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2418 | struct snd_ctl_elem_value *ucontrol) | |
2419 | { | |
2420 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2421 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2422 | unsigned int val; |
2423 | unsigned int mask; | |
2e72f8e3 PU |
2424 | |
2425 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2426 | return -EINVAL; | |
2427 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2428 | mask = e->mask << e->shift_l; | |
2429 | if (e->shift_l != e->shift_r) { | |
2430 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2431 | return -EINVAL; | |
2432 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2433 | mask |= e->mask << e->shift_r; | |
2434 | } | |
2435 | ||
6c508c62 | 2436 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2437 | } |
2438 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2439 | ||
db2a4165 FM |
2440 | /** |
2441 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2442 | * @kcontrol: mixer control | |
2443 | * @uinfo: control element information | |
2444 | * | |
2445 | * Callback to provide information about an external enumerated | |
2446 | * single mixer. | |
2447 | * | |
2448 | * Returns 0 for success. | |
2449 | */ | |
2450 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2451 | struct snd_ctl_elem_info *uinfo) | |
2452 | { | |
2453 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2454 | ||
2455 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2456 | uinfo->count = 1; | |
f8ba0b7b | 2457 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2458 | |
f8ba0b7b JS |
2459 | if (uinfo->value.enumerated.item > e->max - 1) |
2460 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2461 | strcpy(uinfo->value.enumerated.name, |
2462 | e->texts[uinfo->value.enumerated.item]); | |
2463 | return 0; | |
2464 | } | |
2465 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2466 | ||
2467 | /** | |
2468 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2469 | * @kcontrol: mixer control | |
2470 | * @uinfo: control element information | |
2471 | * | |
2472 | * Callback to provide information about a single external mixer control. | |
2473 | * | |
2474 | * Returns 0 for success. | |
2475 | */ | |
2476 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2477 | struct snd_ctl_elem_info *uinfo) | |
2478 | { | |
a7a4ac86 PZ |
2479 | int max = kcontrol->private_value; |
2480 | ||
fd5dfad9 | 2481 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2482 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2483 | else | |
2484 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2485 | |
db2a4165 FM |
2486 | uinfo->count = 1; |
2487 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2488 | uinfo->value.integer.max = max; |
db2a4165 FM |
2489 | return 0; |
2490 | } | |
2491 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2492 | ||
db2a4165 FM |
2493 | /** |
2494 | * snd_soc_info_volsw - single mixer info callback | |
2495 | * @kcontrol: mixer control | |
2496 | * @uinfo: control element information | |
2497 | * | |
e8f5a103 PU |
2498 | * Callback to provide information about a single mixer control, or a double |
2499 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2500 | * |
2501 | * Returns 0 for success. | |
2502 | */ | |
2503 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2504 | struct snd_ctl_elem_info *uinfo) | |
2505 | { | |
4eaa9819 JS |
2506 | struct soc_mixer_control *mc = |
2507 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2508 | int platform_max; |
db2a4165 | 2509 | |
d11bb4a9 PU |
2510 | if (!mc->platform_max) |
2511 | mc->platform_max = mc->max; | |
2512 | platform_max = mc->platform_max; | |
2513 | ||
2514 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2515 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2516 | else | |
2517 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2518 | ||
e8f5a103 | 2519 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2520 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2521 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2522 | return 0; |
2523 | } | |
2524 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2525 | ||
2526 | /** | |
2527 | * snd_soc_get_volsw - single mixer get callback | |
2528 | * @kcontrol: mixer control | |
ac11a2b3 | 2529 | * @ucontrol: control element information |
db2a4165 | 2530 | * |
f7915d99 PU |
2531 | * Callback to get the value of a single mixer control, or a double mixer |
2532 | * control that spans 2 registers. | |
db2a4165 FM |
2533 | * |
2534 | * Returns 0 for success. | |
2535 | */ | |
2536 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2537 | struct snd_ctl_elem_value *ucontrol) | |
2538 | { | |
4eaa9819 JS |
2539 | struct soc_mixer_control *mc = |
2540 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2541 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2542 | unsigned int reg = mc->reg; |
f7915d99 | 2543 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2544 | unsigned int shift = mc->shift; |
2545 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2546 | int max = mc->max; |
815ecf8d JS |
2547 | unsigned int mask = (1 << fls(max)) - 1; |
2548 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2549 | |
2550 | ucontrol->value.integer.value[0] = | |
2551 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2552 | if (invert) |
db2a4165 | 2553 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2554 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2555 | |
2556 | if (snd_soc_volsw_is_stereo(mc)) { | |
2557 | if (reg == reg2) | |
2558 | ucontrol->value.integer.value[1] = | |
2559 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2560 | else | |
2561 | ucontrol->value.integer.value[1] = | |
2562 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2563 | if (invert) | |
db2a4165 | 2564 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2565 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2566 | } |
2567 | ||
2568 | return 0; | |
2569 | } | |
2570 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2571 | ||
2572 | /** | |
2573 | * snd_soc_put_volsw - single mixer put callback | |
2574 | * @kcontrol: mixer control | |
ac11a2b3 | 2575 | * @ucontrol: control element information |
db2a4165 | 2576 | * |
974815ba PU |
2577 | * Callback to set the value of a single mixer control, or a double mixer |
2578 | * control that spans 2 registers. | |
db2a4165 FM |
2579 | * |
2580 | * Returns 0 for success. | |
2581 | */ | |
2582 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2583 | struct snd_ctl_elem_value *ucontrol) | |
2584 | { | |
4eaa9819 JS |
2585 | struct soc_mixer_control *mc = |
2586 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2587 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2588 | unsigned int reg = mc->reg; |
974815ba | 2589 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2590 | unsigned int shift = mc->shift; |
2591 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2592 | int max = mc->max; |
815ecf8d JS |
2593 | unsigned int mask = (1 << fls(max)) - 1; |
2594 | unsigned int invert = mc->invert; | |
974815ba PU |
2595 | int err; |
2596 | bool type_2r = 0; | |
2597 | unsigned int val2 = 0; | |
2598 | unsigned int val, val_mask; | |
db2a4165 FM |
2599 | |
2600 | val = (ucontrol->value.integer.value[0] & mask); | |
2601 | if (invert) | |
a7a4ac86 | 2602 | val = max - val; |
db2a4165 FM |
2603 | val_mask = mask << shift; |
2604 | val = val << shift; | |
974815ba | 2605 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2606 | val2 = (ucontrol->value.integer.value[1] & mask); |
2607 | if (invert) | |
a7a4ac86 | 2608 | val2 = max - val2; |
974815ba PU |
2609 | if (reg == reg2) { |
2610 | val_mask |= mask << rshift; | |
2611 | val |= val2 << rshift; | |
2612 | } else { | |
2613 | val2 = val2 << shift; | |
2614 | type_2r = 1; | |
2615 | } | |
db2a4165 | 2616 | } |
6c508c62 | 2617 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2618 | if (err < 0) |
db2a4165 FM |
2619 | return err; |
2620 | ||
974815ba PU |
2621 | if (type_2r) |
2622 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2623 | ||
db2a4165 FM |
2624 | return err; |
2625 | } | |
974815ba | 2626 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2627 | |
1d99f243 BA |
2628 | /** |
2629 | * snd_soc_get_volsw_sx - single mixer get callback | |
2630 | * @kcontrol: mixer control | |
2631 | * @ucontrol: control element information | |
2632 | * | |
2633 | * Callback to get the value of a single mixer control, or a double mixer | |
2634 | * control that spans 2 registers. | |
2635 | * | |
2636 | * Returns 0 for success. | |
2637 | */ | |
2638 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, | |
2639 | struct snd_ctl_elem_value *ucontrol) | |
2640 | { | |
2641 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2642 | struct soc_mixer_control *mc = | |
2643 | (struct soc_mixer_control *)kcontrol->private_value; | |
2644 | ||
2645 | unsigned int reg = mc->reg; | |
2646 | unsigned int reg2 = mc->rreg; | |
2647 | unsigned int shift = mc->shift; | |
2648 | unsigned int rshift = mc->rshift; | |
2649 | int max = mc->max; | |
2650 | int min = mc->min; | |
2651 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
2652 | ||
2653 | ucontrol->value.integer.value[0] = | |
2654 | ((snd_soc_read(codec, reg) >> shift) - min) & mask; | |
2655 | ||
2656 | if (snd_soc_volsw_is_stereo(mc)) | |
2657 | ucontrol->value.integer.value[1] = | |
2658 | ((snd_soc_read(codec, reg2) >> rshift) - min) & mask; | |
2659 | ||
2660 | return 0; | |
2661 | } | |
2662 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); | |
2663 | ||
2664 | /** | |
2665 | * snd_soc_put_volsw_sx - double mixer set callback | |
2666 | * @kcontrol: mixer control | |
2667 | * @uinfo: control element information | |
2668 | * | |
2669 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2670 | * | |
2671 | * Returns 0 for success. | |
2672 | */ | |
2673 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, | |
2674 | struct snd_ctl_elem_value *ucontrol) | |
2675 | { | |
2676 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2677 | struct soc_mixer_control *mc = | |
2678 | (struct soc_mixer_control *)kcontrol->private_value; | |
2679 | ||
2680 | unsigned int reg = mc->reg; | |
2681 | unsigned int reg2 = mc->rreg; | |
2682 | unsigned int shift = mc->shift; | |
2683 | unsigned int rshift = mc->rshift; | |
2684 | int max = mc->max; | |
2685 | int min = mc->min; | |
2686 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
27f1d759 | 2687 | int err = 0; |
1d99f243 BA |
2688 | unsigned short val, val_mask, val2 = 0; |
2689 | ||
2690 | val_mask = mask << shift; | |
2691 | val = (ucontrol->value.integer.value[0] + min) & mask; | |
2692 | val = val << shift; | |
2693 | ||
2694 | if (snd_soc_update_bits_locked(codec, reg, val_mask, val)) | |
2695 | return err; | |
2696 | ||
2697 | if (snd_soc_volsw_is_stereo(mc)) { | |
2698 | val_mask = mask << rshift; | |
2699 | val2 = (ucontrol->value.integer.value[1] + min) & mask; | |
2700 | val2 = val2 << rshift; | |
2701 | ||
2702 | if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2)) | |
2703 | return err; | |
2704 | } | |
2705 | return 0; | |
2706 | } | |
2707 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); | |
2708 | ||
e13ac2e9 MB |
2709 | /** |
2710 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2711 | * @kcontrol: mixer control | |
2712 | * @uinfo: control element information | |
2713 | * | |
2714 | * Callback to provide information about a signed mixer control. | |
2715 | * | |
2716 | * Returns 0 for success. | |
2717 | */ | |
2718 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2719 | struct snd_ctl_elem_info *uinfo) | |
2720 | { | |
4eaa9819 JS |
2721 | struct soc_mixer_control *mc = |
2722 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2723 | int platform_max; |
4eaa9819 | 2724 | int min = mc->min; |
e13ac2e9 | 2725 | |
d11bb4a9 PU |
2726 | if (!mc->platform_max) |
2727 | mc->platform_max = mc->max; | |
2728 | platform_max = mc->platform_max; | |
2729 | ||
e13ac2e9 MB |
2730 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2731 | uinfo->count = 2; | |
2732 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2733 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2734 | return 0; |
2735 | } | |
2736 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2737 | ||
2738 | /** | |
2739 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2740 | * @kcontrol: mixer control | |
ac11a2b3 | 2741 | * @ucontrol: control element information |
e13ac2e9 MB |
2742 | * |
2743 | * Callback to get the value of a signed mixer control. | |
2744 | * | |
2745 | * Returns 0 for success. | |
2746 | */ | |
2747 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2748 | struct snd_ctl_elem_value *ucontrol) | |
2749 | { | |
4eaa9819 JS |
2750 | struct soc_mixer_control *mc = |
2751 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2752 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2753 | unsigned int reg = mc->reg; |
4eaa9819 | 2754 | int min = mc->min; |
e13ac2e9 MB |
2755 | int val = snd_soc_read(codec, reg); |
2756 | ||
2757 | ucontrol->value.integer.value[0] = | |
2758 | ((signed char)(val & 0xff))-min; | |
2759 | ucontrol->value.integer.value[1] = | |
2760 | ((signed char)((val >> 8) & 0xff))-min; | |
2761 | return 0; | |
2762 | } | |
2763 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2764 | ||
2765 | /** | |
2766 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2767 | * @kcontrol: mixer control | |
ac11a2b3 | 2768 | * @ucontrol: control element information |
e13ac2e9 MB |
2769 | * |
2770 | * Callback to set the value of a signed mixer control. | |
2771 | * | |
2772 | * Returns 0 for success. | |
2773 | */ | |
2774 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2775 | struct snd_ctl_elem_value *ucontrol) | |
2776 | { | |
4eaa9819 JS |
2777 | struct soc_mixer_control *mc = |
2778 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2779 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2780 | unsigned int reg = mc->reg; |
4eaa9819 | 2781 | int min = mc->min; |
46f5822f | 2782 | unsigned int val; |
e13ac2e9 MB |
2783 | |
2784 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2785 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2786 | ||
6c508c62 | 2787 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2788 | } |
2789 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2790 | ||
637d3847 PU |
2791 | /** |
2792 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2793 | * | |
2794 | * @codec: where to look for the control | |
2795 | * @name: Name of the control | |
2796 | * @max: new maximum limit | |
2797 | * | |
2798 | * Return 0 for success, else error. | |
2799 | */ | |
2800 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2801 | const char *name, int max) | |
2802 | { | |
f0fba2ad | 2803 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2804 | struct snd_kcontrol *kctl; |
2805 | struct soc_mixer_control *mc; | |
2806 | int found = 0; | |
2807 | int ret = -EINVAL; | |
2808 | ||
2809 | /* Sanity check for name and max */ | |
2810 | if (unlikely(!name || max <= 0)) | |
2811 | return -EINVAL; | |
2812 | ||
2813 | list_for_each_entry(kctl, &card->controls, list) { | |
2814 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2815 | found = 1; | |
2816 | break; | |
2817 | } | |
2818 | } | |
2819 | if (found) { | |
2820 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2821 | if (max <= mc->max) { | |
d11bb4a9 | 2822 | mc->platform_max = max; |
637d3847 PU |
2823 | ret = 0; |
2824 | } | |
2825 | } | |
2826 | return ret; | |
2827 | } | |
2828 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2829 | ||
71d08516 MB |
2830 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, |
2831 | struct snd_ctl_elem_info *uinfo) | |
2832 | { | |
2833 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2834 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2835 | ||
2836 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
2837 | uinfo->count = params->num_regs * codec->val_bytes; | |
2838 | ||
2839 | return 0; | |
2840 | } | |
2841 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
2842 | ||
2843 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
2844 | struct snd_ctl_elem_value *ucontrol) | |
2845 | { | |
2846 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2847 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2848 | int ret; | |
2849 | ||
2850 | if (codec->using_regmap) | |
2851 | ret = regmap_raw_read(codec->control_data, params->base, | |
2852 | ucontrol->value.bytes.data, | |
2853 | params->num_regs * codec->val_bytes); | |
2854 | else | |
2855 | ret = -EINVAL; | |
2856 | ||
f831b055 MB |
2857 | /* Hide any masked bytes to ensure consistent data reporting */ |
2858 | if (ret == 0 && params->mask) { | |
2859 | switch (codec->val_bytes) { | |
2860 | case 1: | |
2861 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
2862 | break; | |
2863 | case 2: | |
2864 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
2865 | &= ~params->mask; | |
2866 | break; | |
2867 | case 4: | |
2868 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
2869 | &= ~params->mask; | |
2870 | break; | |
2871 | default: | |
2872 | return -EINVAL; | |
2873 | } | |
2874 | } | |
2875 | ||
71d08516 MB |
2876 | return ret; |
2877 | } | |
2878 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
2879 | ||
2880 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
2881 | struct snd_ctl_elem_value *ucontrol) | |
2882 | { | |
2883 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2884 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
f831b055 MB |
2885 | int ret, len; |
2886 | unsigned int val; | |
2887 | void *data; | |
71d08516 | 2888 | |
f831b055 MB |
2889 | if (!codec->using_regmap) |
2890 | return -EINVAL; | |
2891 | ||
2892 | data = ucontrol->value.bytes.data; | |
2893 | len = params->num_regs * codec->val_bytes; | |
2894 | ||
2895 | /* | |
2896 | * If we've got a mask then we need to preserve the register | |
2897 | * bits. We shouldn't modify the incoming data so take a | |
2898 | * copy. | |
2899 | */ | |
2900 | if (params->mask) { | |
2901 | ret = regmap_read(codec->control_data, params->base, &val); | |
2902 | if (ret != 0) | |
2903 | return ret; | |
2904 | ||
2905 | val &= params->mask; | |
2906 | ||
2907 | data = kmemdup(data, len, GFP_KERNEL); | |
2908 | if (!data) | |
2909 | return -ENOMEM; | |
2910 | ||
2911 | switch (codec->val_bytes) { | |
2912 | case 1: | |
2913 | ((u8 *)data)[0] &= ~params->mask; | |
2914 | ((u8 *)data)[0] |= val; | |
2915 | break; | |
2916 | case 2: | |
2917 | ((u16 *)data)[0] &= cpu_to_be16(~params->mask); | |
2918 | ((u16 *)data)[0] |= cpu_to_be16(val); | |
2919 | break; | |
2920 | case 4: | |
2921 | ((u32 *)data)[0] &= cpu_to_be32(~params->mask); | |
2922 | ((u32 *)data)[0] |= cpu_to_be32(val); | |
2923 | break; | |
2924 | default: | |
2925 | return -EINVAL; | |
2926 | } | |
2927 | } | |
2928 | ||
2929 | ret = regmap_raw_write(codec->control_data, params->base, | |
2930 | data, len); | |
2931 | ||
2932 | if (params->mask) | |
2933 | kfree(data); | |
71d08516 MB |
2934 | |
2935 | return ret; | |
2936 | } | |
2937 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
2938 | ||
4183eed2 KK |
2939 | /** |
2940 | * snd_soc_info_xr_sx - signed multi register info callback | |
2941 | * @kcontrol: mreg control | |
2942 | * @uinfo: control element information | |
2943 | * | |
2944 | * Callback to provide information of a control that can | |
2945 | * span multiple codec registers which together | |
2946 | * forms a single signed value in a MSB/LSB manner. | |
2947 | * | |
2948 | * Returns 0 for success. | |
2949 | */ | |
2950 | int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, | |
2951 | struct snd_ctl_elem_info *uinfo) | |
2952 | { | |
2953 | struct soc_mreg_control *mc = | |
2954 | (struct soc_mreg_control *)kcontrol->private_value; | |
2955 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2956 | uinfo->count = 1; | |
2957 | uinfo->value.integer.min = mc->min; | |
2958 | uinfo->value.integer.max = mc->max; | |
2959 | ||
2960 | return 0; | |
2961 | } | |
2962 | EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); | |
2963 | ||
2964 | /** | |
2965 | * snd_soc_get_xr_sx - signed multi register get callback | |
2966 | * @kcontrol: mreg control | |
2967 | * @ucontrol: control element information | |
2968 | * | |
2969 | * Callback to get the value of a control that can span | |
2970 | * multiple codec registers which together forms a single | |
2971 | * signed value in a MSB/LSB manner. The control supports | |
2972 | * specifying total no of bits used to allow for bitfields | |
2973 | * across the multiple codec registers. | |
2974 | * | |
2975 | * Returns 0 for success. | |
2976 | */ | |
2977 | int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, | |
2978 | struct snd_ctl_elem_value *ucontrol) | |
2979 | { | |
2980 | struct soc_mreg_control *mc = | |
2981 | (struct soc_mreg_control *)kcontrol->private_value; | |
2982 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2983 | unsigned int regbase = mc->regbase; | |
2984 | unsigned int regcount = mc->regcount; | |
2985 | unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; | |
2986 | unsigned int regwmask = (1<<regwshift)-1; | |
2987 | unsigned int invert = mc->invert; | |
2988 | unsigned long mask = (1UL<<mc->nbits)-1; | |
2989 | long min = mc->min; | |
2990 | long max = mc->max; | |
2991 | long val = 0; | |
2992 | unsigned long regval; | |
2993 | unsigned int i; | |
2994 | ||
2995 | for (i = 0; i < regcount; i++) { | |
2996 | regval = snd_soc_read(codec, regbase+i) & regwmask; | |
2997 | val |= regval << (regwshift*(regcount-i-1)); | |
2998 | } | |
2999 | val &= mask; | |
3000 | if (min < 0 && val > max) | |
3001 | val |= ~mask; | |
3002 | if (invert) | |
3003 | val = max - val; | |
3004 | ucontrol->value.integer.value[0] = val; | |
3005 | ||
3006 | return 0; | |
3007 | } | |
3008 | EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); | |
3009 | ||
3010 | /** | |
3011 | * snd_soc_put_xr_sx - signed multi register get callback | |
3012 | * @kcontrol: mreg control | |
3013 | * @ucontrol: control element information | |
3014 | * | |
3015 | * Callback to set the value of a control that can span | |
3016 | * multiple codec registers which together forms a single | |
3017 | * signed value in a MSB/LSB manner. The control supports | |
3018 | * specifying total no of bits used to allow for bitfields | |
3019 | * across the multiple codec registers. | |
3020 | * | |
3021 | * Returns 0 for success. | |
3022 | */ | |
3023 | int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, | |
3024 | struct snd_ctl_elem_value *ucontrol) | |
3025 | { | |
3026 | struct soc_mreg_control *mc = | |
3027 | (struct soc_mreg_control *)kcontrol->private_value; | |
3028 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3029 | unsigned int regbase = mc->regbase; | |
3030 | unsigned int regcount = mc->regcount; | |
3031 | unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; | |
3032 | unsigned int regwmask = (1<<regwshift)-1; | |
3033 | unsigned int invert = mc->invert; | |
3034 | unsigned long mask = (1UL<<mc->nbits)-1; | |
4183eed2 KK |
3035 | long max = mc->max; |
3036 | long val = ucontrol->value.integer.value[0]; | |
3037 | unsigned int i, regval, regmask; | |
3038 | int err; | |
3039 | ||
3040 | if (invert) | |
3041 | val = max - val; | |
3042 | val &= mask; | |
3043 | for (i = 0; i < regcount; i++) { | |
3044 | regval = (val >> (regwshift*(regcount-i-1))) & regwmask; | |
3045 | regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; | |
3046 | err = snd_soc_update_bits_locked(codec, regbase+i, | |
3047 | regmask, regval); | |
3048 | if (err < 0) | |
3049 | return err; | |
3050 | } | |
3051 | ||
3052 | return 0; | |
3053 | } | |
3054 | EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); | |
3055 | ||
dd7b10b3 KK |
3056 | /** |
3057 | * snd_soc_get_strobe - strobe get callback | |
3058 | * @kcontrol: mixer control | |
3059 | * @ucontrol: control element information | |
3060 | * | |
3061 | * Callback get the value of a strobe mixer control. | |
3062 | * | |
3063 | * Returns 0 for success. | |
3064 | */ | |
3065 | int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, | |
3066 | struct snd_ctl_elem_value *ucontrol) | |
3067 | { | |
3068 | struct soc_mixer_control *mc = | |
3069 | (struct soc_mixer_control *)kcontrol->private_value; | |
3070 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3071 | unsigned int reg = mc->reg; | |
3072 | unsigned int shift = mc->shift; | |
3073 | unsigned int mask = 1 << shift; | |
3074 | unsigned int invert = mc->invert != 0; | |
3075 | unsigned int val = snd_soc_read(codec, reg) & mask; | |
3076 | ||
3077 | if (shift != 0 && val != 0) | |
3078 | val = val >> shift; | |
3079 | ucontrol->value.enumerated.item[0] = val ^ invert; | |
3080 | ||
3081 | return 0; | |
3082 | } | |
3083 | EXPORT_SYMBOL_GPL(snd_soc_get_strobe); | |
3084 | ||
3085 | /** | |
3086 | * snd_soc_put_strobe - strobe put callback | |
3087 | * @kcontrol: mixer control | |
3088 | * @ucontrol: control element information | |
3089 | * | |
3090 | * Callback strobe a register bit to high then low (or the inverse) | |
3091 | * in one pass of a single mixer enum control. | |
3092 | * | |
3093 | * Returns 1 for success. | |
3094 | */ | |
3095 | int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, | |
3096 | struct snd_ctl_elem_value *ucontrol) | |
3097 | { | |
3098 | struct soc_mixer_control *mc = | |
3099 | (struct soc_mixer_control *)kcontrol->private_value; | |
3100 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3101 | unsigned int reg = mc->reg; | |
3102 | unsigned int shift = mc->shift; | |
3103 | unsigned int mask = 1 << shift; | |
3104 | unsigned int invert = mc->invert != 0; | |
3105 | unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; | |
3106 | unsigned int val1 = (strobe ^ invert) ? mask : 0; | |
3107 | unsigned int val2 = (strobe ^ invert) ? 0 : mask; | |
3108 | int err; | |
3109 | ||
3110 | err = snd_soc_update_bits_locked(codec, reg, mask, val1); | |
3111 | if (err < 0) | |
3112 | return err; | |
3113 | ||
3114 | err = snd_soc_update_bits_locked(codec, reg, mask, val2); | |
3115 | return err; | |
3116 | } | |
3117 | EXPORT_SYMBOL_GPL(snd_soc_put_strobe); | |
3118 | ||
8c6529db LG |
3119 | /** |
3120 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3121 | * @dai: DAI | |
3122 | * @clk_id: DAI specific clock ID | |
3123 | * @freq: new clock frequency in Hz | |
3124 | * @dir: new clock direction - input/output. | |
3125 | * | |
3126 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3127 | */ | |
3128 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3129 | unsigned int freq, int dir) | |
3130 | { | |
f0fba2ad LG |
3131 | if (dai->driver && dai->driver->ops->set_sysclk) |
3132 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 3133 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 3134 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 3135 | freq, dir); |
8c6529db LG |
3136 | else |
3137 | return -EINVAL; | |
3138 | } | |
3139 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3140 | ||
ec4ee52a MB |
3141 | /** |
3142 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
3143 | * @codec: CODEC | |
3144 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 3145 | * @source: Source for the clock |
ec4ee52a MB |
3146 | * @freq: new clock frequency in Hz |
3147 | * @dir: new clock direction - input/output. | |
3148 | * | |
3149 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
3150 | */ | |
3151 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 3152 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
3153 | { |
3154 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
3155 | return codec->driver->set_sysclk(codec, clk_id, source, |
3156 | freq, dir); | |
ec4ee52a MB |
3157 | else |
3158 | return -EINVAL; | |
3159 | } | |
3160 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
3161 | ||
8c6529db LG |
3162 | /** |
3163 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3164 | * @dai: DAI | |
ac11a2b3 | 3165 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3166 | * @div: new clock divisor. |
3167 | * | |
3168 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3169 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3170 | * and frame clocks as low as possible to save system power. | |
3171 | */ | |
3172 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3173 | int div_id, int div) | |
3174 | { | |
f0fba2ad LG |
3175 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3176 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3177 | else |
3178 | return -EINVAL; | |
3179 | } | |
3180 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3181 | ||
3182 | /** | |
3183 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3184 | * @dai: DAI | |
3185 | * @pll_id: DAI specific PLL ID | |
85488037 | 3186 | * @source: DAI specific source for the PLL |
8c6529db LG |
3187 | * @freq_in: PLL input clock frequency in Hz |
3188 | * @freq_out: requested PLL output clock frequency in Hz | |
3189 | * | |
3190 | * Configures and enables PLL to generate output clock based on input clock. | |
3191 | */ | |
85488037 MB |
3192 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3193 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3194 | { |
f0fba2ad LG |
3195 | if (dai->driver && dai->driver->ops->set_pll) |
3196 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3197 | freq_in, freq_out); |
ec4ee52a MB |
3198 | else if (dai->codec && dai->codec->driver->set_pll) |
3199 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
3200 | freq_in, freq_out); | |
8c6529db LG |
3201 | else |
3202 | return -EINVAL; | |
3203 | } | |
3204 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3205 | ||
ec4ee52a MB |
3206 | /* |
3207 | * snd_soc_codec_set_pll - configure codec PLL. | |
3208 | * @codec: CODEC | |
3209 | * @pll_id: DAI specific PLL ID | |
3210 | * @source: DAI specific source for the PLL | |
3211 | * @freq_in: PLL input clock frequency in Hz | |
3212 | * @freq_out: requested PLL output clock frequency in Hz | |
3213 | * | |
3214 | * Configures and enables PLL to generate output clock based on input clock. | |
3215 | */ | |
3216 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
3217 | unsigned int freq_in, unsigned int freq_out) | |
3218 | { | |
3219 | if (codec->driver->set_pll) | |
3220 | return codec->driver->set_pll(codec, pll_id, source, | |
3221 | freq_in, freq_out); | |
3222 | else | |
3223 | return -EINVAL; | |
3224 | } | |
3225 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
3226 | ||
8c6529db LG |
3227 | /** |
3228 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3229 | * @dai: DAI | |
8c6529db LG |
3230 | * @fmt: SND_SOC_DAIFMT_ format value. |
3231 | * | |
3232 | * Configures the DAI hardware format and clocking. | |
3233 | */ | |
3234 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3235 | { | |
5e4ba569 | 3236 | if (dai->driver == NULL) |
8c6529db | 3237 | return -EINVAL; |
5e4ba569 SG |
3238 | if (dai->driver->ops->set_fmt == NULL) |
3239 | return -ENOTSUPP; | |
3240 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3241 | } |
3242 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3243 | ||
3244 | /** | |
3245 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3246 | * @dai: DAI | |
a5479e38 DR |
3247 | * @tx_mask: bitmask representing active TX slots. |
3248 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3249 | * @slots: Number of slots in use. |
a5479e38 | 3250 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3251 | * |
3252 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3253 | * specific. | |
3254 | */ | |
3255 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3256 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3257 | { |
f0fba2ad LG |
3258 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3259 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3260 | slots, slot_width); |
8c6529db LG |
3261 | else |
3262 | return -EINVAL; | |
3263 | } | |
3264 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3265 | ||
472df3cb BS |
3266 | /** |
3267 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3268 | * @dai: DAI | |
3269 | * @tx_num: how many TX channels | |
3270 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3271 | * 0~num-1 uses | |
3272 | * @rx_num: how many RX channels | |
3273 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3274 | * 0~num-1 uses | |
3275 | * | |
3276 | * configure the relationship between channel number and TDM slot number. | |
3277 | */ | |
3278 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3279 | unsigned int tx_num, unsigned int *tx_slot, | |
3280 | unsigned int rx_num, unsigned int *rx_slot) | |
3281 | { | |
f0fba2ad LG |
3282 | if (dai->driver && dai->driver->ops->set_channel_map) |
3283 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3284 | rx_num, rx_slot); |
3285 | else | |
3286 | return -EINVAL; | |
3287 | } | |
3288 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3289 | ||
8c6529db LG |
3290 | /** |
3291 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3292 | * @dai: DAI | |
3293 | * @tristate: tristate enable | |
3294 | * | |
3295 | * Tristates the DAI so that others can use it. | |
3296 | */ | |
3297 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3298 | { | |
f0fba2ad LG |
3299 | if (dai->driver && dai->driver->ops->set_tristate) |
3300 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3301 | else |
3302 | return -EINVAL; | |
3303 | } | |
3304 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3305 | ||
3306 | /** | |
3307 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3308 | * @dai: DAI | |
3309 | * @mute: mute enable | |
3310 | * | |
3311 | * Mutes the DAI DAC. | |
3312 | */ | |
3313 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3314 | { | |
f0fba2ad LG |
3315 | if (dai->driver && dai->driver->ops->digital_mute) |
3316 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db | 3317 | else |
04570c62 | 3318 | return -ENOTSUPP; |
8c6529db LG |
3319 | } |
3320 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3321 | ||
c5af3a2e MB |
3322 | /** |
3323 | * snd_soc_register_card - Register a card with the ASoC core | |
3324 | * | |
ac11a2b3 | 3325 | * @card: Card to register |
c5af3a2e | 3326 | * |
c5af3a2e | 3327 | */ |
70a7ca34 | 3328 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3329 | { |
b19e6e7b | 3330 | int i, ret; |
f0fba2ad | 3331 | |
c5af3a2e MB |
3332 | if (!card->name || !card->dev) |
3333 | return -EINVAL; | |
3334 | ||
5a504963 SW |
3335 | for (i = 0; i < card->num_links; i++) { |
3336 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
3337 | ||
3338 | /* | |
3339 | * Codec must be specified by 1 of name or OF node, | |
3340 | * not both or neither. | |
3341 | */ | |
3342 | if (!!link->codec_name == !!link->codec_of_node) { | |
3343 | dev_err(card->dev, | |
3b09bb82 LG |
3344 | "Neither/both codec name/of_node are set for %s\n", |
3345 | link->name); | |
5a504963 SW |
3346 | return -EINVAL; |
3347 | } | |
3348 | ||
3349 | /* | |
3350 | * Platform may be specified by either name or OF node, but | |
3351 | * can be left unspecified, and a dummy platform will be used. | |
3352 | */ | |
3353 | if (link->platform_name && link->platform_of_node) { | |
3354 | dev_err(card->dev, | |
3b09bb82 | 3355 | "Both platform name/of_node are set for %s\n", link->name); |
5a504963 SW |
3356 | return -EINVAL; |
3357 | } | |
3358 | ||
3359 | /* | |
3360 | * CPU DAI must be specified by 1 of name or OF node, | |
3361 | * not both or neither. | |
3362 | */ | |
3363 | if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) { | |
3364 | dev_err(card->dev, | |
3b09bb82 LG |
3365 | "Neither/both cpu_dai name/of_node are set for %s\n", |
3366 | link->name); | |
5a504963 SW |
3367 | return -EINVAL; |
3368 | } | |
3369 | } | |
3370 | ||
ed77cc12 MB |
3371 | dev_set_drvdata(card->dev, card); |
3372 | ||
111c6419 SW |
3373 | snd_soc_initialize_card_lists(card); |
3374 | ||
150dd2f8 VK |
3375 | soc_init_card_debugfs(card); |
3376 | ||
181a6892 MB |
3377 | card->rtd = devm_kzalloc(card->dev, |
3378 | sizeof(struct snd_soc_pcm_runtime) * | |
3379 | (card->num_links + card->num_aux_devs), | |
3380 | GFP_KERNEL); | |
f0fba2ad LG |
3381 | if (card->rtd == NULL) |
3382 | return -ENOMEM; | |
2eea392d | 3383 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3384 | |
3385 | for (i = 0; i < card->num_links; i++) | |
3386 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3387 | ||
c5af3a2e | 3388 | INIT_LIST_HEAD(&card->list); |
db432b41 | 3389 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 3390 | card->instantiated = 0; |
f0fba2ad | 3391 | mutex_init(&card->mutex); |
a73fb2df | 3392 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 3393 | |
b19e6e7b MB |
3394 | ret = snd_soc_instantiate_card(card); |
3395 | if (ret != 0) | |
3396 | soc_cleanup_card_debugfs(card); | |
c5af3a2e | 3397 | |
b19e6e7b | 3398 | return ret; |
c5af3a2e | 3399 | } |
70a7ca34 | 3400 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3401 | |
3402 | /** | |
3403 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3404 | * | |
ac11a2b3 | 3405 | * @card: Card to unregister |
c5af3a2e | 3406 | * |
c5af3a2e | 3407 | */ |
70a7ca34 | 3408 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3409 | { |
b0e26485 VK |
3410 | if (card->instantiated) |
3411 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3412 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3413 | ||
3414 | return 0; | |
3415 | } | |
70a7ca34 | 3416 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3417 | |
f0fba2ad LG |
3418 | /* |
3419 | * Simplify DAI link configuration by removing ".-1" from device names | |
3420 | * and sanitizing names. | |
3421 | */ | |
0b9a214a | 3422 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3423 | { |
3424 | char *found, name[NAME_SIZE]; | |
3425 | int id1, id2; | |
3426 | ||
3427 | if (dev_name(dev) == NULL) | |
3428 | return NULL; | |
3429 | ||
58818a77 | 3430 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3431 | |
3432 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3433 | found = strstr(name, dev->driver->name); | |
3434 | if (found) { | |
3435 | /* get ID */ | |
3436 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3437 | ||
3438 | /* discard ID from name if ID == -1 */ | |
3439 | if (*id == -1) | |
3440 | found[strlen(dev->driver->name)] = '\0'; | |
3441 | } | |
3442 | ||
3443 | } else { | |
3444 | /* I2C component devices are named "bus-addr" */ | |
3445 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3446 | char tmp[NAME_SIZE]; | |
3447 | ||
3448 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3449 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3450 | |
3451 | /* sanitize component name for DAI link creation */ | |
3452 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3453 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3454 | } else |
3455 | *id = 0; | |
3456 | } | |
3457 | ||
3458 | return kstrdup(name, GFP_KERNEL); | |
3459 | } | |
3460 | ||
3461 | /* | |
3462 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3463 | * any ".-1" and using the DAI name (instead of device name). | |
3464 | */ | |
3465 | static inline char *fmt_multiple_name(struct device *dev, | |
3466 | struct snd_soc_dai_driver *dai_drv) | |
3467 | { | |
3468 | if (dai_drv->name == NULL) { | |
0837fc62 | 3469 | pr_err("asoc: error - multiple DAI %s registered with no name\n", |
f0fba2ad LG |
3470 | dev_name(dev)); |
3471 | return NULL; | |
3472 | } | |
3473 | ||
3474 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3475 | } | |
3476 | ||
9115171a MB |
3477 | /** |
3478 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3479 | * | |
ac11a2b3 | 3480 | * @dai: DAI to register |
9115171a | 3481 | */ |
f0fba2ad LG |
3482 | int snd_soc_register_dai(struct device *dev, |
3483 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3484 | { |
054880fe | 3485 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3486 | struct snd_soc_dai *dai; |
3487 | ||
3488 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3489 | |
f0fba2ad LG |
3490 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3491 | if (dai == NULL) | |
a7393623 | 3492 | return -ENOMEM; |
9115171a | 3493 | |
f0fba2ad LG |
3494 | /* create DAI component name */ |
3495 | dai->name = fmt_single_name(dev, &dai->id); | |
3496 | if (dai->name == NULL) { | |
3497 | kfree(dai); | |
3498 | return -ENOMEM; | |
3499 | } | |
6335d055 | 3500 | |
f0fba2ad LG |
3501 | dai->dev = dev; |
3502 | dai->driver = dai_drv; | |
be09ad90 | 3503 | dai->dapm.dev = dev; |
f0fba2ad LG |
3504 | if (!dai->driver->ops) |
3505 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3506 | |
3507 | mutex_lock(&client_mutex); | |
054880fe MB |
3508 | |
3509 | list_for_each_entry(codec, &codec_list, list) { | |
3510 | if (codec->dev == dev) { | |
3511 | dev_dbg(dev, "Mapped DAI %s to CODEC %s\n", | |
3512 | dai->name, codec->name); | |
3513 | dai->codec = codec; | |
3514 | break; | |
3515 | } | |
3516 | } | |
3517 | ||
9115171a | 3518 | list_add(&dai->list, &dai_list); |
054880fe | 3519 | |
9115171a MB |
3520 | mutex_unlock(&client_mutex); |
3521 | ||
3522 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3523 | ||
3524 | return 0; | |
3525 | } | |
3526 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3527 | ||
3528 | /** | |
3529 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3530 | * | |
ac11a2b3 | 3531 | * @dai: DAI to unregister |
9115171a | 3532 | */ |
f0fba2ad | 3533 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3534 | { |
f0fba2ad LG |
3535 | struct snd_soc_dai *dai; |
3536 | ||
3537 | list_for_each_entry(dai, &dai_list, list) { | |
3538 | if (dev == dai->dev) | |
3539 | goto found; | |
3540 | } | |
3541 | return; | |
3542 | ||
3543 | found: | |
9115171a MB |
3544 | mutex_lock(&client_mutex); |
3545 | list_del(&dai->list); | |
3546 | mutex_unlock(&client_mutex); | |
3547 | ||
3548 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3549 | kfree(dai->name); |
3550 | kfree(dai); | |
9115171a MB |
3551 | } |
3552 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3553 | ||
3554 | /** | |
3555 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3556 | * | |
ac11a2b3 MB |
3557 | * @dai: Array of DAIs to register |
3558 | * @count: Number of DAIs | |
9115171a | 3559 | */ |
f0fba2ad LG |
3560 | int snd_soc_register_dais(struct device *dev, |
3561 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3562 | { |
054880fe | 3563 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3564 | struct snd_soc_dai *dai; |
3565 | int i, ret = 0; | |
3566 | ||
720ffa4c | 3567 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3568 | |
3569 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3570 | |
3571 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3572 | if (dai == NULL) { |
3573 | ret = -ENOMEM; | |
3574 | goto err; | |
3575 | } | |
f0fba2ad LG |
3576 | |
3577 | /* create DAI component name */ | |
3578 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3579 | if (dai->name == NULL) { | |
3580 | kfree(dai); | |
3581 | ret = -EINVAL; | |
9115171a | 3582 | goto err; |
f0fba2ad LG |
3583 | } |
3584 | ||
3585 | dai->dev = dev; | |
f0fba2ad | 3586 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3587 | if (dai->driver->id) |
3588 | dai->id = dai->driver->id; | |
3589 | else | |
3590 | dai->id = i; | |
be09ad90 | 3591 | dai->dapm.dev = dev; |
f0fba2ad LG |
3592 | if (!dai->driver->ops) |
3593 | dai->driver->ops = &null_dai_ops; | |
3594 | ||
3595 | mutex_lock(&client_mutex); | |
054880fe MB |
3596 | |
3597 | list_for_each_entry(codec, &codec_list, list) { | |
3598 | if (codec->dev == dev) { | |
3599 | dev_dbg(dev, "Mapped DAI %s to CODEC %s\n", | |
3600 | dai->name, codec->name); | |
3601 | dai->codec = codec; | |
3602 | break; | |
3603 | } | |
3604 | } | |
3605 | ||
f0fba2ad | 3606 | list_add(&dai->list, &dai_list); |
054880fe | 3607 | |
f0fba2ad LG |
3608 | mutex_unlock(&client_mutex); |
3609 | ||
3610 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3611 | } |
3612 | ||
3613 | return 0; | |
3614 | ||
3615 | err: | |
3616 | for (i--; i >= 0; i--) | |
f0fba2ad | 3617 | snd_soc_unregister_dai(dev); |
9115171a MB |
3618 | |
3619 | return ret; | |
3620 | } | |
3621 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3622 | ||
3623 | /** | |
3624 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3625 | * | |
ac11a2b3 MB |
3626 | * @dai: Array of DAIs to unregister |
3627 | * @count: Number of DAIs | |
9115171a | 3628 | */ |
f0fba2ad | 3629 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3630 | { |
3631 | int i; | |
3632 | ||
3633 | for (i = 0; i < count; i++) | |
f0fba2ad | 3634 | snd_soc_unregister_dai(dev); |
9115171a MB |
3635 | } |
3636 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3637 | ||
12a48a8c MB |
3638 | /** |
3639 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3640 | * | |
ac11a2b3 | 3641 | * @platform: platform to register |
12a48a8c | 3642 | */ |
f0fba2ad LG |
3643 | int snd_soc_register_platform(struct device *dev, |
3644 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3645 | { |
f0fba2ad LG |
3646 | struct snd_soc_platform *platform; |
3647 | ||
3648 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3649 | ||
3650 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3651 | if (platform == NULL) | |
a7393623 | 3652 | return -ENOMEM; |
f0fba2ad LG |
3653 | |
3654 | /* create platform component name */ | |
3655 | platform->name = fmt_single_name(dev, &platform->id); | |
3656 | if (platform->name == NULL) { | |
3657 | kfree(platform); | |
3658 | return -ENOMEM; | |
3659 | } | |
12a48a8c | 3660 | |
f0fba2ad LG |
3661 | platform->dev = dev; |
3662 | platform->driver = platform_drv; | |
b7950641 LG |
3663 | platform->dapm.dev = dev; |
3664 | platform->dapm.platform = platform; | |
64a648c2 | 3665 | platform->dapm.stream_event = platform_drv->stream_event; |
cc22d37e | 3666 | mutex_init(&platform->mutex); |
12a48a8c MB |
3667 | |
3668 | mutex_lock(&client_mutex); | |
3669 | list_add(&platform->list, &platform_list); | |
3670 | mutex_unlock(&client_mutex); | |
3671 | ||
3672 | pr_debug("Registered platform '%s'\n", platform->name); | |
3673 | ||
3674 | return 0; | |
3675 | } | |
3676 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3677 | ||
3678 | /** | |
3679 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3680 | * | |
ac11a2b3 | 3681 | * @platform: platform to unregister |
12a48a8c | 3682 | */ |
f0fba2ad | 3683 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3684 | { |
f0fba2ad LG |
3685 | struct snd_soc_platform *platform; |
3686 | ||
3687 | list_for_each_entry(platform, &platform_list, list) { | |
3688 | if (dev == platform->dev) | |
3689 | goto found; | |
3690 | } | |
3691 | return; | |
3692 | ||
3693 | found: | |
12a48a8c MB |
3694 | mutex_lock(&client_mutex); |
3695 | list_del(&platform->list); | |
3696 | mutex_unlock(&client_mutex); | |
3697 | ||
3698 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3699 | kfree(platform->name); |
3700 | kfree(platform); | |
12a48a8c MB |
3701 | } |
3702 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3703 | ||
151ab22c MB |
3704 | static u64 codec_format_map[] = { |
3705 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3706 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3707 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3708 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3709 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3710 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3711 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3712 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3713 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3714 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3715 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3716 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3717 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3718 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3719 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3720 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3721 | }; | |
3722 | ||
3723 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3724 | * the endianness of the data but we're using the CPU format | |
3725 | * definitions which do need to include endianness so we ensure that | |
3726 | * codec DAIs always have both big and little endian variants set. | |
3727 | */ | |
3728 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3729 | { | |
3730 | int i; | |
3731 | ||
3732 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3733 | if (stream->formats & codec_format_map[i]) | |
3734 | stream->formats |= codec_format_map[i]; | |
3735 | } | |
3736 | ||
0d0cf00a MB |
3737 | /** |
3738 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3739 | * | |
ac11a2b3 | 3740 | * @codec: codec to register |
0d0cf00a | 3741 | */ |
f0fba2ad | 3742 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3743 | const struct snd_soc_codec_driver *codec_drv, |
3744 | struct snd_soc_dai_driver *dai_drv, | |
3745 | int num_dai) | |
0d0cf00a | 3746 | { |
3335ddca | 3747 | size_t reg_size; |
f0fba2ad LG |
3748 | struct snd_soc_codec *codec; |
3749 | int ret, i; | |
151ab22c | 3750 | |
f0fba2ad LG |
3751 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3752 | ||
3753 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3754 | if (codec == NULL) | |
3755 | return -ENOMEM; | |
0d0cf00a | 3756 | |
f0fba2ad LG |
3757 | /* create CODEC component name */ |
3758 | codec->name = fmt_single_name(dev, &codec->id); | |
3759 | if (codec->name == NULL) { | |
3760 | kfree(codec); | |
3761 | return -ENOMEM; | |
3762 | } | |
3763 | ||
23bbce34 DP |
3764 | if (codec_drv->compress_type) |
3765 | codec->compress_type = codec_drv->compress_type; | |
3766 | else | |
3767 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3768 | ||
c3acec26 MB |
3769 | codec->write = codec_drv->write; |
3770 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3771 | codec->volatile_register = codec_drv->volatile_register; |
3772 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3773 | codec->writable_register = codec_drv->writable_register; |
5124e69e | 3774 | codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
ce6120cc LG |
3775 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3776 | codec->dapm.dev = dev; | |
3777 | codec->dapm.codec = codec; | |
474b62d6 | 3778 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3779 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3780 | codec->dev = dev; |
3781 | codec->driver = codec_drv; | |
3782 | codec->num_dai = num_dai; | |
3783 | mutex_init(&codec->mutex); | |
ce6120cc | 3784 | |
f0fba2ad LG |
3785 | /* allocate CODEC register cache */ |
3786 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3787 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3788 | codec->reg_size = reg_size; |
3335ddca DP |
3789 | /* it is necessary to make a copy of the default register cache |
3790 | * because in the case of using a compression type that requires | |
3791 | * the default register cache to be marked as __devinitconst the | |
3792 | * kernel might have freed the array by the time we initialize | |
3793 | * the cache. | |
3794 | */ | |
2aa86323 DP |
3795 | if (codec_drv->reg_cache_default) { |
3796 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3797 | reg_size, GFP_KERNEL); | |
3798 | if (!codec->reg_def_copy) { | |
3799 | ret = -ENOMEM; | |
3800 | goto fail; | |
3801 | } | |
f0fba2ad | 3802 | } |
151ab22c MB |
3803 | } |
3804 | ||
1500b7b5 DP |
3805 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3806 | if (!codec->volatile_register) | |
3807 | codec->volatile_register = snd_soc_default_volatile_register; | |
3808 | if (!codec->readable_register) | |
3809 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3810 | if (!codec->writable_register) |
3811 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3812 | } |
3813 | ||
f0fba2ad LG |
3814 | for (i = 0; i < num_dai; i++) { |
3815 | fixup_codec_formats(&dai_drv[i].playback); | |
3816 | fixup_codec_formats(&dai_drv[i].capture); | |
3817 | } | |
3818 | ||
054880fe MB |
3819 | mutex_lock(&client_mutex); |
3820 | list_add(&codec->list, &codec_list); | |
3821 | mutex_unlock(&client_mutex); | |
3822 | ||
26b01ccd MB |
3823 | /* register any DAIs */ |
3824 | if (num_dai) { | |
3825 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3826 | if (ret < 0) | |
054880fe MB |
3827 | dev_err(codec->dev, "Failed to regster DAIs: %d\n", |
3828 | ret); | |
26b01ccd | 3829 | } |
f0fba2ad | 3830 | |
0d0cf00a | 3831 | pr_debug("Registered codec '%s'\n", codec->name); |
0d0cf00a | 3832 | return 0; |
f0fba2ad | 3833 | |
fdf0f54d | 3834 | fail: |
3335ddca DP |
3835 | kfree(codec->reg_def_copy); |
3836 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3837 | kfree(codec->name); |
3838 | kfree(codec); | |
3839 | return ret; | |
0d0cf00a MB |
3840 | } |
3841 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3842 | ||
3843 | /** | |
3844 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3845 | * | |
ac11a2b3 | 3846 | * @codec: codec to unregister |
0d0cf00a | 3847 | */ |
f0fba2ad | 3848 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3849 | { |
f0fba2ad LG |
3850 | struct snd_soc_codec *codec; |
3851 | int i; | |
3852 | ||
3853 | list_for_each_entry(codec, &codec_list, list) { | |
3854 | if (dev == codec->dev) | |
3855 | goto found; | |
3856 | } | |
3857 | return; | |
3858 | ||
3859 | found: | |
26b01ccd MB |
3860 | if (codec->num_dai) |
3861 | for (i = 0; i < codec->num_dai; i++) | |
3862 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3863 | |
0d0cf00a MB |
3864 | mutex_lock(&client_mutex); |
3865 | list_del(&codec->list); | |
3866 | mutex_unlock(&client_mutex); | |
3867 | ||
3868 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3869 | |
7a30a3db | 3870 | snd_soc_cache_exit(codec); |
3335ddca | 3871 | kfree(codec->reg_def_copy); |
1aafcd4d | 3872 | kfree(codec->name); |
f0fba2ad | 3873 | kfree(codec); |
0d0cf00a MB |
3874 | } |
3875 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3876 | ||
bec4fa05 SW |
3877 | /* Retrieve a card's name from device tree */ |
3878 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3879 | const char *propname) | |
3880 | { | |
3881 | struct device_node *np = card->dev->of_node; | |
3882 | int ret; | |
3883 | ||
3884 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
3885 | /* | |
3886 | * EINVAL means the property does not exist. This is fine providing | |
3887 | * card->name was previously set, which is checked later in | |
3888 | * snd_soc_register_card. | |
3889 | */ | |
3890 | if (ret < 0 && ret != -EINVAL) { | |
3891 | dev_err(card->dev, | |
3892 | "Property '%s' could not be read: %d\n", | |
3893 | propname, ret); | |
3894 | return ret; | |
3895 | } | |
3896 | ||
3897 | return 0; | |
3898 | } | |
3899 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3900 | ||
a4a54dd5 SW |
3901 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3902 | const char *propname) | |
3903 | { | |
3904 | struct device_node *np = card->dev->of_node; | |
3905 | int num_routes; | |
3906 | struct snd_soc_dapm_route *routes; | |
3907 | int i, ret; | |
3908 | ||
3909 | num_routes = of_property_count_strings(np, propname); | |
3910 | if (num_routes & 1) { | |
3911 | dev_err(card->dev, | |
3912 | "Property '%s's length is not even\n", | |
3913 | propname); | |
3914 | return -EINVAL; | |
3915 | } | |
3916 | num_routes /= 2; | |
3917 | if (!num_routes) { | |
3918 | dev_err(card->dev, | |
3919 | "Property '%s's length is zero\n", | |
3920 | propname); | |
3921 | return -EINVAL; | |
3922 | } | |
3923 | ||
3924 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
3925 | GFP_KERNEL); | |
3926 | if (!routes) { | |
3927 | dev_err(card->dev, | |
3928 | "Could not allocate DAPM route table\n"); | |
3929 | return -EINVAL; | |
3930 | } | |
3931 | ||
3932 | for (i = 0; i < num_routes; i++) { | |
3933 | ret = of_property_read_string_index(np, propname, | |
3934 | 2 * i, &routes[i].sink); | |
3935 | if (ret) { | |
3936 | dev_err(card->dev, | |
3937 | "Property '%s' index %d could not be read: %d\n", | |
3938 | propname, 2 * i, ret); | |
3939 | return -EINVAL; | |
3940 | } | |
3941 | ret = of_property_read_string_index(np, propname, | |
3942 | (2 * i) + 1, &routes[i].source); | |
3943 | if (ret) { | |
3944 | dev_err(card->dev, | |
3945 | "Property '%s' index %d could not be read: %d\n", | |
3946 | propname, (2 * i) + 1, ret); | |
3947 | return -EINVAL; | |
3948 | } | |
3949 | } | |
3950 | ||
3951 | card->num_dapm_routes = num_routes; | |
3952 | card->dapm_routes = routes; | |
3953 | ||
3954 | return 0; | |
3955 | } | |
3956 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3957 | ||
c9b3a40f | 3958 | static int __init snd_soc_init(void) |
db2a4165 | 3959 | { |
384c89e2 | 3960 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3961 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3962 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 3963 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 3964 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3965 | } |
c3c5a19a | 3966 | |
8a9dab1a | 3967 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3968 | &codec_list_fops)) |
3969 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3970 | ||
8a9dab1a | 3971 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3972 | &dai_list_fops)) |
3973 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3974 | |
8a9dab1a | 3975 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3976 | &platform_list_fops)) |
3977 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3978 | #endif |
3979 | ||
fb257897 MB |
3980 | snd_soc_util_init(); |
3981 | ||
db2a4165 FM |
3982 | return platform_driver_register(&soc_driver); |
3983 | } | |
4abe8e16 | 3984 | module_init(snd_soc_init); |
db2a4165 | 3985 | |
7d8c16a6 | 3986 | static void __exit snd_soc_exit(void) |
db2a4165 | 3987 | { |
fb257897 MB |
3988 | snd_soc_util_exit(); |
3989 | ||
384c89e2 | 3990 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3991 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3992 | #endif |
3ff3f64b | 3993 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3994 | } |
db2a4165 FM |
3995 | module_exit(snd_soc_exit); |
3996 | ||
3997 | /* Module information */ | |
d331124d | 3998 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3999 | MODULE_DESCRIPTION("ALSA SoC Core"); |
4000 | MODULE_LICENSE("GPL"); | |
8b45a209 | 4001 | MODULE_ALIAS("platform:soc-audio"); |