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 */ | |
cd0f8911 | 1221 | if (!dailess && !dai_link->dynamic) |
f86dcef8 LG |
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 */ | |
fe33d4c5 SW |
1615 | if (dai_fmt && |
1616 | (dai_link->platform_name || dai_link->platform_of_node)) { | |
f04209a7 MB |
1617 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, |
1618 | dai_fmt); | |
1619 | if (ret != 0 && ret != -ENOTSUPP) | |
1620 | dev_warn(card->rtd[i].cpu_dai->dev, | |
1621 | "Failed to set DAI format: %d\n", | |
1622 | ret); | |
1623 | } else if (dai_fmt) { | |
1624 | /* Flip the polarity for the "CPU" end */ | |
1625 | dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK; | |
1626 | switch (dai_link->dai_fmt & | |
1627 | SND_SOC_DAIFMT_MASTER_MASK) { | |
1628 | case SND_SOC_DAIFMT_CBM_CFM: | |
1629 | dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1630 | break; | |
1631 | case SND_SOC_DAIFMT_CBM_CFS: | |
1632 | dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1633 | break; | |
1634 | case SND_SOC_DAIFMT_CBS_CFM: | |
1635 | dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1636 | break; | |
1637 | case SND_SOC_DAIFMT_CBS_CFS: | |
1638 | dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1639 | break; | |
1640 | } | |
75d9ac46 MB |
1641 | |
1642 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
f04209a7 | 1643 | dai_fmt); |
5e4ba569 | 1644 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1645 | dev_warn(card->rtd[i].cpu_dai->dev, |
1646 | "Failed to set DAI format: %d\n", | |
1647 | ret); | |
1648 | } | |
1649 | } | |
1650 | ||
f0fba2ad | 1651 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1652 | "%s", card->name); |
22de71ba LG |
1653 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1654 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1655 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1656 | "%s", card->driver_name ? card->driver_name : card->name); | |
1657 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1658 | switch (card->snd_card->driver[i]) { | |
1659 | case '_': | |
1660 | case '-': | |
1661 | case '\0': | |
1662 | break; | |
1663 | default: | |
1664 | if (!isalnum(card->snd_card->driver[i])) | |
1665 | card->snd_card->driver[i] = '_'; | |
1666 | break; | |
1667 | } | |
1668 | } | |
f0fba2ad | 1669 | |
28e9ad92 MB |
1670 | if (card->late_probe) { |
1671 | ret = card->late_probe(card); | |
1672 | if (ret < 0) { | |
1673 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1674 | card->name, ret); | |
1675 | goto probe_aux_dev_err; | |
1676 | } | |
1677 | } | |
1678 | ||
2dc00213 MB |
1679 | snd_soc_dapm_new_widgets(&card->dapm); |
1680 | ||
1633281b | 1681 | if (card->fully_routed) |
b05d8dc1 | 1682 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1683 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1684 | ||
f0fba2ad LG |
1685 | ret = snd_card_register(card->snd_card); |
1686 | if (ret < 0) { | |
0837fc62 FE |
1687 | pr_err("asoc: failed to register soundcard for %s: %d\n", |
1688 | card->name, ret); | |
6b3ed785 | 1689 | goto probe_aux_dev_err; |
db2a4165 FM |
1690 | } |
1691 | ||
f0fba2ad LG |
1692 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1693 | /* register any AC97 codecs */ | |
1694 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1695 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1696 | if (ret < 0) { | |
0837fc62 FE |
1697 | pr_err("asoc: failed to register AC97 %s: %d\n", |
1698 | card->name, ret); | |
6b3ed785 | 1699 | while (--i >= 0) |
7d8316df | 1700 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1701 | goto probe_aux_dev_err; |
f0fba2ad | 1702 | } |
6b3ed785 | 1703 | } |
f0fba2ad LG |
1704 | #endif |
1705 | ||
1706 | card->instantiated = 1; | |
4f4c0072 | 1707 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1708 | mutex_unlock(&card->mutex); |
b19e6e7b MB |
1709 | |
1710 | return 0; | |
f0fba2ad | 1711 | |
2eea392d JN |
1712 | probe_aux_dev_err: |
1713 | for (i = 0; i < card->num_aux_devs; i++) | |
1714 | soc_remove_aux_dev(card, i); | |
1715 | ||
f0fba2ad | 1716 | probe_dai_err: |
0671fd8e | 1717 | soc_remove_dai_links(card); |
f0fba2ad LG |
1718 | |
1719 | card_probe_error: | |
87506549 | 1720 | if (card->remove) |
e7361ec4 | 1721 | card->remove(card); |
f0fba2ad LG |
1722 | |
1723 | snd_card_free(card->snd_card); | |
1724 | ||
b19e6e7b | 1725 | base_error: |
f0fba2ad | 1726 | mutex_unlock(&card->mutex); |
db2a4165 | 1727 | |
b19e6e7b | 1728 | return ret; |
435c5e25 MB |
1729 | } |
1730 | ||
1731 | /* probes a new socdev */ | |
1732 | static int soc_probe(struct platform_device *pdev) | |
1733 | { | |
f0fba2ad | 1734 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1735 | int ret = 0; |
435c5e25 | 1736 | |
70a7ca34 VK |
1737 | /* |
1738 | * no card, so machine driver should be registering card | |
1739 | * we should not be here in that case so ret error | |
1740 | */ | |
1741 | if (!card) | |
1742 | return -EINVAL; | |
1743 | ||
fe4085e8 MB |
1744 | dev_warn(&pdev->dev, |
1745 | "ASoC machine %s should use snd_soc_register_card()\n", | |
1746 | card->name); | |
1747 | ||
435c5e25 MB |
1748 | /* Bodge while we unpick instantiation */ |
1749 | card->dev = &pdev->dev; | |
f0fba2ad | 1750 | |
435c5e25 MB |
1751 | ret = snd_soc_register_card(card); |
1752 | if (ret != 0) { | |
1753 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1754 | return ret; | |
1755 | } | |
1756 | ||
1757 | return 0; | |
db2a4165 FM |
1758 | } |
1759 | ||
b0e26485 | 1760 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1761 | { |
1762 | int i; | |
db2a4165 | 1763 | |
b0e26485 VK |
1764 | /* make sure any delayed work runs */ |
1765 | for (i = 0; i < card->num_rtd; i++) { | |
1766 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1767 | flush_delayed_work_sync(&rtd->delayed_work); | |
1768 | } | |
914dc182 | 1769 | |
b0e26485 VK |
1770 | /* remove auxiliary devices */ |
1771 | for (i = 0; i < card->num_aux_devs; i++) | |
1772 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1773 | |
b0e26485 | 1774 | /* remove and free each DAI */ |
0671fd8e | 1775 | soc_remove_dai_links(card); |
2eea392d | 1776 | |
b0e26485 | 1777 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1778 | |
b0e26485 VK |
1779 | /* remove the card */ |
1780 | if (card->remove) | |
e7361ec4 | 1781 | card->remove(card); |
a6052154 | 1782 | |
0aaae527 LPC |
1783 | snd_soc_dapm_free(&card->dapm); |
1784 | ||
b0e26485 VK |
1785 | snd_card_free(card->snd_card); |
1786 | return 0; | |
1787 | ||
1788 | } | |
1789 | ||
1790 | /* removes a socdev */ | |
1791 | static int soc_remove(struct platform_device *pdev) | |
1792 | { | |
1793 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1794 | |
c5af3a2e | 1795 | snd_soc_unregister_card(card); |
db2a4165 FM |
1796 | return 0; |
1797 | } | |
1798 | ||
6f8ab4ac | 1799 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1800 | { |
6f8ab4ac | 1801 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1802 | int i; |
51737470 MB |
1803 | |
1804 | if (!card->instantiated) | |
416356fc | 1805 | return 0; |
51737470 MB |
1806 | |
1807 | /* Flush out pmdown_time work - we actually do want to run it | |
1808 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1809 | for (i = 0; i < card->num_rtd; i++) { |
1810 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1811 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1812 | } |
51737470 | 1813 | |
f0fba2ad | 1814 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1815 | |
1816 | return 0; | |
51737470 | 1817 | } |
6f8ab4ac | 1818 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1819 | |
6f8ab4ac | 1820 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1821 | .suspend = snd_soc_suspend, |
1822 | .resume = snd_soc_resume, | |
1823 | .freeze = snd_soc_suspend, | |
1824 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1825 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1826 | .restore = snd_soc_resume, |
416356fc | 1827 | }; |
deb2607e | 1828 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1829 | |
db2a4165 FM |
1830 | /* ASoC platform driver */ |
1831 | static struct platform_driver soc_driver = { | |
1832 | .driver = { | |
1833 | .name = "soc-audio", | |
8b45a209 | 1834 | .owner = THIS_MODULE, |
6f8ab4ac | 1835 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1836 | }, |
1837 | .probe = soc_probe, | |
1838 | .remove = soc_remove, | |
db2a4165 FM |
1839 | }; |
1840 | ||
096e49d5 MB |
1841 | /** |
1842 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1843 | * | |
1844 | * @codec: CODEC to query. | |
1845 | * @reg: Register to query. | |
1846 | * | |
1847 | * Boolean function indiciating if a CODEC register is volatile. | |
1848 | */ | |
181e055e MB |
1849 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1850 | unsigned int reg) | |
096e49d5 | 1851 | { |
1500b7b5 DP |
1852 | if (codec->volatile_register) |
1853 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1854 | else |
1855 | return 0; | |
1856 | } | |
1857 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1858 | ||
239c9706 DP |
1859 | /** |
1860 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1861 | * | |
1862 | * @codec: CODEC to query. | |
1863 | * @reg: Register to query. | |
1864 | * | |
1865 | * Boolean function indicating if a CODEC register is readable. | |
1866 | */ | |
1867 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1868 | unsigned int reg) | |
1869 | { | |
1870 | if (codec->readable_register) | |
1871 | return codec->readable_register(codec, reg); | |
1872 | else | |
63fa0a28 | 1873 | return 1; |
239c9706 DP |
1874 | } |
1875 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1876 | ||
1877 | /** | |
1878 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1879 | * | |
1880 | * @codec: CODEC to query. | |
1881 | * @reg: Register to query. | |
1882 | * | |
1883 | * Boolean function indicating if a CODEC register is writable. | |
1884 | */ | |
1885 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1886 | unsigned int reg) | |
1887 | { | |
1888 | if (codec->writable_register) | |
1889 | return codec->writable_register(codec, reg); | |
1890 | else | |
63fa0a28 | 1891 | return 1; |
239c9706 DP |
1892 | } |
1893 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1894 | ||
f1442bc1 LG |
1895 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1896 | unsigned int reg) | |
1897 | { | |
1898 | unsigned int ret; | |
1899 | ||
1900 | if (!platform->driver->read) { | |
1901 | dev_err(platform->dev, "platform has no read back\n"); | |
1902 | return -1; | |
1903 | } | |
1904 | ||
1905 | ret = platform->driver->read(platform, reg); | |
1906 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1907 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1908 | |
1909 | return ret; | |
1910 | } | |
1911 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1912 | ||
1913 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1914 | unsigned int reg, unsigned int val) | |
1915 | { | |
1916 | if (!platform->driver->write) { | |
1917 | dev_err(platform->dev, "platform has no write back\n"); | |
1918 | return -1; | |
1919 | } | |
1920 | ||
1921 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1922 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1923 | return platform->driver->write(platform, reg, val); |
1924 | } | |
1925 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1926 | ||
db2a4165 FM |
1927 | /** |
1928 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1929 | * @codec: audio codec | |
1930 | * @ops: AC97 bus operations | |
1931 | * @num: AC97 codec number | |
1932 | * | |
1933 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1934 | */ | |
1935 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1936 | struct snd_ac97_bus_ops *ops, int num) | |
1937 | { | |
1938 | mutex_lock(&codec->mutex); | |
1939 | ||
1940 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1941 | if (codec->ac97 == NULL) { | |
1942 | mutex_unlock(&codec->mutex); | |
1943 | return -ENOMEM; | |
1944 | } | |
1945 | ||
1946 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1947 | if (codec->ac97->bus == NULL) { | |
1948 | kfree(codec->ac97); | |
1949 | codec->ac97 = NULL; | |
1950 | mutex_unlock(&codec->mutex); | |
1951 | return -ENOMEM; | |
1952 | } | |
1953 | ||
1954 | codec->ac97->bus->ops = ops; | |
1955 | codec->ac97->num = num; | |
0562f788 MW |
1956 | |
1957 | /* | |
1958 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1959 | * device will be registered with the device subsystem later on. | |
1960 | */ | |
1961 | codec->ac97_created = 1; | |
1962 | ||
db2a4165 FM |
1963 | mutex_unlock(&codec->mutex); |
1964 | return 0; | |
1965 | } | |
1966 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1967 | ||
1968 | /** | |
1969 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1970 | * @codec: audio codec | |
1971 | * | |
1972 | * Frees AC97 codec device resources. | |
1973 | */ | |
1974 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1975 | { | |
1976 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1977 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1978 | soc_unregister_ac97_dai_link(codec); | |
1979 | #endif | |
db2a4165 FM |
1980 | kfree(codec->ac97->bus); |
1981 | kfree(codec->ac97); | |
1982 | codec->ac97 = NULL; | |
0562f788 | 1983 | codec->ac97_created = 0; |
db2a4165 FM |
1984 | mutex_unlock(&codec->mutex); |
1985 | } | |
1986 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1987 | ||
c3753707 MB |
1988 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1989 | { | |
1990 | unsigned int ret; | |
1991 | ||
c3acec26 | 1992 | ret = codec->read(codec, reg); |
c3753707 | 1993 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1994 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1995 | |
1996 | return ret; | |
1997 | } | |
1998 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1999 | ||
2000 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2001 | unsigned int reg, unsigned int val) | |
2002 | { | |
2003 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2004 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2005 | return codec->write(codec, reg, val); |
c3753707 MB |
2006 | } |
2007 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2008 | ||
5fb609d4 DP |
2009 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
2010 | unsigned int reg, const void *data, size_t len) | |
2011 | { | |
2012 | return codec->bulk_write_raw(codec, reg, data, len); | |
2013 | } | |
2014 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
2015 | ||
db2a4165 FM |
2016 | /** |
2017 | * snd_soc_update_bits - update codec register bits | |
2018 | * @codec: audio codec | |
2019 | * @reg: codec register | |
2020 | * @mask: register mask | |
2021 | * @value: new value | |
2022 | * | |
2023 | * Writes new register value. | |
2024 | * | |
180c329d | 2025 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2026 | */ |
2027 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2028 | unsigned int mask, unsigned int value) |
db2a4165 | 2029 | { |
8a713da8 | 2030 | bool change; |
46f5822f | 2031 | unsigned int old, new; |
180c329d TT |
2032 | int ret; |
2033 | ||
8a713da8 MB |
2034 | if (codec->using_regmap) { |
2035 | ret = regmap_update_bits_check(codec->control_data, reg, | |
2036 | mask, value, &change); | |
2037 | } else { | |
2038 | ret = snd_soc_read(codec, reg); | |
180c329d TT |
2039 | if (ret < 0) |
2040 | return ret; | |
8a713da8 MB |
2041 | |
2042 | old = ret; | |
2043 | new = (old & ~mask) | (value & mask); | |
2044 | change = old != new; | |
2045 | if (change) | |
2046 | ret = snd_soc_write(codec, reg, new); | |
180c329d | 2047 | } |
db2a4165 | 2048 | |
8a713da8 MB |
2049 | if (ret < 0) |
2050 | return ret; | |
2051 | ||
db2a4165 FM |
2052 | return change; |
2053 | } | |
2054 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2055 | ||
6c508c62 EN |
2056 | /** |
2057 | * snd_soc_update_bits_locked - update codec register bits | |
2058 | * @codec: audio codec | |
2059 | * @reg: codec register | |
2060 | * @mask: register mask | |
2061 | * @value: new value | |
2062 | * | |
2063 | * Writes new register value, and takes the codec mutex. | |
2064 | * | |
2065 | * Returns 1 for change else 0. | |
2066 | */ | |
dd1b3d53 MB |
2067 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2068 | unsigned short reg, unsigned int mask, | |
2069 | unsigned int value) | |
6c508c62 EN |
2070 | { |
2071 | int change; | |
2072 | ||
2073 | mutex_lock(&codec->mutex); | |
2074 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2075 | mutex_unlock(&codec->mutex); | |
2076 | ||
2077 | return change; | |
2078 | } | |
dd1b3d53 | 2079 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2080 | |
db2a4165 FM |
2081 | /** |
2082 | * snd_soc_test_bits - test register for change | |
2083 | * @codec: audio codec | |
2084 | * @reg: codec register | |
2085 | * @mask: register mask | |
2086 | * @value: new value | |
2087 | * | |
2088 | * Tests a register with a new value and checks if the new value is | |
2089 | * different from the old value. | |
2090 | * | |
2091 | * Returns 1 for change else 0. | |
2092 | */ | |
2093 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2094 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2095 | { |
2096 | int change; | |
46f5822f | 2097 | unsigned int old, new; |
db2a4165 | 2098 | |
db2a4165 FM |
2099 | old = snd_soc_read(codec, reg); |
2100 | new = (old & ~mask) | value; | |
2101 | change = old != new; | |
db2a4165 FM |
2102 | |
2103 | return change; | |
2104 | } | |
2105 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2106 | ||
db2a4165 FM |
2107 | /** |
2108 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2109 | * @substream: the pcm substream | |
2110 | * @hw: the hardware parameters | |
2111 | * | |
2112 | * Sets the substream runtime hardware parameters. | |
2113 | */ | |
2114 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2115 | const struct snd_pcm_hardware *hw) | |
2116 | { | |
2117 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2118 | runtime->hw.info = hw->info; | |
2119 | runtime->hw.formats = hw->formats; | |
2120 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2121 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2122 | runtime->hw.periods_min = hw->periods_min; | |
2123 | runtime->hw.periods_max = hw->periods_max; | |
2124 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2125 | runtime->hw.fifo_size = hw->fifo_size; | |
2126 | return 0; | |
2127 | } | |
2128 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2129 | ||
2130 | /** | |
2131 | * snd_soc_cnew - create new control | |
2132 | * @_template: control template | |
2133 | * @data: control private data | |
ac11a2b3 | 2134 | * @long_name: control long name |
efb7ac3f | 2135 | * @prefix: control name prefix |
db2a4165 FM |
2136 | * |
2137 | * Create a new mixer control from a template control. | |
2138 | * | |
2139 | * Returns 0 for success, else error. | |
2140 | */ | |
2141 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2142 | void *data, const char *long_name, |
efb7ac3f | 2143 | const char *prefix) |
db2a4165 FM |
2144 | { |
2145 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2146 | struct snd_kcontrol *kcontrol; |
2147 | char *name = NULL; | |
2148 | int name_len; | |
db2a4165 FM |
2149 | |
2150 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2151 | template.index = 0; |
2152 | ||
efb7ac3f MB |
2153 | if (!long_name) |
2154 | long_name = template.name; | |
2155 | ||
2156 | if (prefix) { | |
2157 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 2158 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
2159 | if (!name) |
2160 | return NULL; | |
2161 | ||
2162 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2163 | ||
2164 | template.name = name; | |
2165 | } else { | |
2166 | template.name = long_name; | |
2167 | } | |
2168 | ||
2169 | kcontrol = snd_ctl_new1(&template, data); | |
2170 | ||
2171 | kfree(name); | |
2172 | ||
2173 | return kcontrol; | |
db2a4165 FM |
2174 | } |
2175 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2176 | ||
022658be LG |
2177 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2178 | const struct snd_kcontrol_new *controls, int num_controls, | |
2179 | const char *prefix, void *data) | |
2180 | { | |
2181 | int err, i; | |
2182 | ||
2183 | for (i = 0; i < num_controls; i++) { | |
2184 | const struct snd_kcontrol_new *control = &controls[i]; | |
2185 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2186 | control->name, prefix)); | |
2187 | if (err < 0) { | |
2188 | dev_err(dev, "Failed to add %s: %d\n", control->name, err); | |
2189 | return err; | |
2190 | } | |
2191 | } | |
2192 | ||
2193 | return 0; | |
2194 | } | |
2195 | ||
3e8e1952 | 2196 | /** |
022658be LG |
2197 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2198 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2199 | * duplicating this code. |
2200 | * | |
2201 | * @codec: codec to add controls to | |
2202 | * @controls: array of controls to add | |
2203 | * @num_controls: number of elements in the array | |
2204 | * | |
2205 | * Return 0 for success, else error. | |
2206 | */ | |
022658be | 2207 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
3e8e1952 IM |
2208 | const struct snd_kcontrol_new *controls, int num_controls) |
2209 | { | |
f0fba2ad | 2210 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 | 2211 | |
022658be LG |
2212 | return snd_soc_add_controls(card, codec->dev, controls, num_controls, |
2213 | codec->name_prefix, codec); | |
3e8e1952 | 2214 | } |
022658be | 2215 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2216 | |
a491a5c8 LG |
2217 | /** |
2218 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2219 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2220 | * |
2221 | * @platform: platform to add controls to | |
2222 | * @controls: array of controls to add | |
2223 | * @num_controls: number of elements in the array | |
2224 | * | |
2225 | * Return 0 for success, else error. | |
2226 | */ | |
2227 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2228 | const struct snd_kcontrol_new *controls, int num_controls) | |
2229 | { | |
2230 | struct snd_card *card = platform->card->snd_card; | |
a491a5c8 | 2231 | |
022658be LG |
2232 | return snd_soc_add_controls(card, platform->dev, controls, num_controls, |
2233 | NULL, platform); | |
a491a5c8 LG |
2234 | } |
2235 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2236 | ||
022658be LG |
2237 | /** |
2238 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2239 | * Convenience function to add a list of controls. | |
2240 | * | |
2241 | * @soc_card: SoC card to add controls to | |
2242 | * @controls: array of controls to add | |
2243 | * @num_controls: number of elements in the array | |
2244 | * | |
2245 | * Return 0 for success, else error. | |
2246 | */ | |
2247 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2248 | const struct snd_kcontrol_new *controls, int num_controls) | |
2249 | { | |
2250 | struct snd_card *card = soc_card->snd_card; | |
2251 | ||
2252 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2253 | NULL, soc_card); | |
2254 | } | |
2255 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2256 | ||
2257 | /** | |
2258 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2259 | * Convienience function to add a list of controls. | |
2260 | * | |
2261 | * @dai: DAI to add controls to | |
2262 | * @controls: array of controls to add | |
2263 | * @num_controls: number of elements in the array | |
2264 | * | |
2265 | * Return 0 for success, else error. | |
2266 | */ | |
2267 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2268 | const struct snd_kcontrol_new *controls, int num_controls) | |
2269 | { | |
2270 | struct snd_card *card = dai->card->snd_card; | |
2271 | ||
2272 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2273 | NULL, dai); | |
2274 | } | |
2275 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2276 | ||
db2a4165 FM |
2277 | /** |
2278 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2279 | * @kcontrol: mixer control | |
2280 | * @uinfo: control element information | |
2281 | * | |
2282 | * Callback to provide information about a double enumerated | |
2283 | * mixer control. | |
2284 | * | |
2285 | * Returns 0 for success. | |
2286 | */ | |
2287 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2288 | struct snd_ctl_elem_info *uinfo) | |
2289 | { | |
2290 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2291 | ||
2292 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2293 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2294 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2295 | |
f8ba0b7b JS |
2296 | if (uinfo->value.enumerated.item > e->max - 1) |
2297 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2298 | strcpy(uinfo->value.enumerated.name, |
2299 | e->texts[uinfo->value.enumerated.item]); | |
2300 | return 0; | |
2301 | } | |
2302 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2303 | ||
2304 | /** | |
2305 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2306 | * @kcontrol: mixer control | |
ac11a2b3 | 2307 | * @ucontrol: control element information |
db2a4165 FM |
2308 | * |
2309 | * Callback to get the value of a double enumerated mixer. | |
2310 | * | |
2311 | * Returns 0 for success. | |
2312 | */ | |
2313 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2314 | struct snd_ctl_elem_value *ucontrol) | |
2315 | { | |
2316 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2317 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2318 | unsigned int val, bitmask; |
db2a4165 | 2319 | |
f8ba0b7b | 2320 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2321 | ; |
2322 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2323 | ucontrol->value.enumerated.item[0] |
2324 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2325 | if (e->shift_l != e->shift_r) |
2326 | ucontrol->value.enumerated.item[1] = | |
2327 | (val >> e->shift_r) & (bitmask - 1); | |
2328 | ||
2329 | return 0; | |
2330 | } | |
2331 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2332 | ||
2333 | /** | |
2334 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2335 | * @kcontrol: mixer control | |
ac11a2b3 | 2336 | * @ucontrol: control element information |
db2a4165 FM |
2337 | * |
2338 | * Callback to set the value of a double enumerated mixer. | |
2339 | * | |
2340 | * Returns 0 for success. | |
2341 | */ | |
2342 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2343 | struct snd_ctl_elem_value *ucontrol) | |
2344 | { | |
2345 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2346 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2347 | unsigned int val; |
2348 | unsigned int mask, bitmask; | |
db2a4165 | 2349 | |
f8ba0b7b | 2350 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2351 | ; |
f8ba0b7b | 2352 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2353 | return -EINVAL; |
2354 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2355 | mask = (bitmask - 1) << e->shift_l; | |
2356 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2357 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2358 | return -EINVAL; |
2359 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2360 | mask |= (bitmask - 1) << e->shift_r; | |
2361 | } | |
2362 | ||
6c508c62 | 2363 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2364 | } |
2365 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2366 | ||
2e72f8e3 PU |
2367 | /** |
2368 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2369 | * @kcontrol: mixer control | |
2370 | * @ucontrol: control element information | |
2371 | * | |
2372 | * Callback to get the value of a double semi enumerated mixer. | |
2373 | * | |
2374 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2375 | * used for handling bitfield coded enumeration for example. | |
2376 | * | |
2377 | * Returns 0 for success. | |
2378 | */ | |
2379 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2380 | struct snd_ctl_elem_value *ucontrol) | |
2381 | { | |
2382 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2383 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2384 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2385 | |
2386 | reg_val = snd_soc_read(codec, e->reg); | |
2387 | val = (reg_val >> e->shift_l) & e->mask; | |
2388 | for (mux = 0; mux < e->max; mux++) { | |
2389 | if (val == e->values[mux]) | |
2390 | break; | |
2391 | } | |
2392 | ucontrol->value.enumerated.item[0] = mux; | |
2393 | if (e->shift_l != e->shift_r) { | |
2394 | val = (reg_val >> e->shift_r) & e->mask; | |
2395 | for (mux = 0; mux < e->max; mux++) { | |
2396 | if (val == e->values[mux]) | |
2397 | break; | |
2398 | } | |
2399 | ucontrol->value.enumerated.item[1] = mux; | |
2400 | } | |
2401 | ||
2402 | return 0; | |
2403 | } | |
2404 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2405 | ||
2406 | /** | |
2407 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2408 | * @kcontrol: mixer control | |
2409 | * @ucontrol: control element information | |
2410 | * | |
2411 | * Callback to set the value of a double semi enumerated mixer. | |
2412 | * | |
2413 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2414 | * used for handling bitfield coded enumeration for example. | |
2415 | * | |
2416 | * Returns 0 for success. | |
2417 | */ | |
2418 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2419 | struct snd_ctl_elem_value *ucontrol) | |
2420 | { | |
2421 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2422 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2423 | unsigned int val; |
2424 | unsigned int mask; | |
2e72f8e3 PU |
2425 | |
2426 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2427 | return -EINVAL; | |
2428 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2429 | mask = e->mask << e->shift_l; | |
2430 | if (e->shift_l != e->shift_r) { | |
2431 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2432 | return -EINVAL; | |
2433 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2434 | mask |= e->mask << e->shift_r; | |
2435 | } | |
2436 | ||
6c508c62 | 2437 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2438 | } |
2439 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2440 | ||
db2a4165 FM |
2441 | /** |
2442 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2443 | * @kcontrol: mixer control | |
2444 | * @uinfo: control element information | |
2445 | * | |
2446 | * Callback to provide information about an external enumerated | |
2447 | * single mixer. | |
2448 | * | |
2449 | * Returns 0 for success. | |
2450 | */ | |
2451 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2452 | struct snd_ctl_elem_info *uinfo) | |
2453 | { | |
2454 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2455 | ||
2456 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2457 | uinfo->count = 1; | |
f8ba0b7b | 2458 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2459 | |
f8ba0b7b JS |
2460 | if (uinfo->value.enumerated.item > e->max - 1) |
2461 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2462 | strcpy(uinfo->value.enumerated.name, |
2463 | e->texts[uinfo->value.enumerated.item]); | |
2464 | return 0; | |
2465 | } | |
2466 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2467 | ||
2468 | /** | |
2469 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2470 | * @kcontrol: mixer control | |
2471 | * @uinfo: control element information | |
2472 | * | |
2473 | * Callback to provide information about a single external mixer control. | |
2474 | * | |
2475 | * Returns 0 for success. | |
2476 | */ | |
2477 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2478 | struct snd_ctl_elem_info *uinfo) | |
2479 | { | |
a7a4ac86 PZ |
2480 | int max = kcontrol->private_value; |
2481 | ||
fd5dfad9 | 2482 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2483 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2484 | else | |
2485 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2486 | |
db2a4165 FM |
2487 | uinfo->count = 1; |
2488 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2489 | uinfo->value.integer.max = max; |
db2a4165 FM |
2490 | return 0; |
2491 | } | |
2492 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2493 | ||
db2a4165 FM |
2494 | /** |
2495 | * snd_soc_info_volsw - single mixer info callback | |
2496 | * @kcontrol: mixer control | |
2497 | * @uinfo: control element information | |
2498 | * | |
e8f5a103 PU |
2499 | * Callback to provide information about a single mixer control, or a double |
2500 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2501 | * |
2502 | * Returns 0 for success. | |
2503 | */ | |
2504 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2505 | struct snd_ctl_elem_info *uinfo) | |
2506 | { | |
4eaa9819 JS |
2507 | struct soc_mixer_control *mc = |
2508 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2509 | int platform_max; |
db2a4165 | 2510 | |
d11bb4a9 PU |
2511 | if (!mc->platform_max) |
2512 | mc->platform_max = mc->max; | |
2513 | platform_max = mc->platform_max; | |
2514 | ||
2515 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2516 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2517 | else | |
2518 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2519 | ||
e8f5a103 | 2520 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2521 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2522 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2523 | return 0; |
2524 | } | |
2525 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2526 | ||
2527 | /** | |
2528 | * snd_soc_get_volsw - single mixer get callback | |
2529 | * @kcontrol: mixer control | |
ac11a2b3 | 2530 | * @ucontrol: control element information |
db2a4165 | 2531 | * |
f7915d99 PU |
2532 | * Callback to get the value of a single mixer control, or a double mixer |
2533 | * control that spans 2 registers. | |
db2a4165 FM |
2534 | * |
2535 | * Returns 0 for success. | |
2536 | */ | |
2537 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2538 | struct snd_ctl_elem_value *ucontrol) | |
2539 | { | |
4eaa9819 JS |
2540 | struct soc_mixer_control *mc = |
2541 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2542 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2543 | unsigned int reg = mc->reg; |
f7915d99 | 2544 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2545 | unsigned int shift = mc->shift; |
2546 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2547 | int max = mc->max; |
815ecf8d JS |
2548 | unsigned int mask = (1 << fls(max)) - 1; |
2549 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2550 | |
2551 | ucontrol->value.integer.value[0] = | |
2552 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2553 | if (invert) |
db2a4165 | 2554 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2555 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2556 | |
2557 | if (snd_soc_volsw_is_stereo(mc)) { | |
2558 | if (reg == reg2) | |
2559 | ucontrol->value.integer.value[1] = | |
2560 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2561 | else | |
2562 | ucontrol->value.integer.value[1] = | |
2563 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2564 | if (invert) | |
db2a4165 | 2565 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2566 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2567 | } |
2568 | ||
2569 | return 0; | |
2570 | } | |
2571 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2572 | ||
2573 | /** | |
2574 | * snd_soc_put_volsw - single mixer put callback | |
2575 | * @kcontrol: mixer control | |
ac11a2b3 | 2576 | * @ucontrol: control element information |
db2a4165 | 2577 | * |
974815ba PU |
2578 | * Callback to set the value of a single mixer control, or a double mixer |
2579 | * control that spans 2 registers. | |
db2a4165 FM |
2580 | * |
2581 | * Returns 0 for success. | |
2582 | */ | |
2583 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2584 | struct snd_ctl_elem_value *ucontrol) | |
2585 | { | |
4eaa9819 JS |
2586 | struct soc_mixer_control *mc = |
2587 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2588 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2589 | unsigned int reg = mc->reg; |
974815ba | 2590 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2591 | unsigned int shift = mc->shift; |
2592 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2593 | int max = mc->max; |
815ecf8d JS |
2594 | unsigned int mask = (1 << fls(max)) - 1; |
2595 | unsigned int invert = mc->invert; | |
974815ba PU |
2596 | int err; |
2597 | bool type_2r = 0; | |
2598 | unsigned int val2 = 0; | |
2599 | unsigned int val, val_mask; | |
db2a4165 FM |
2600 | |
2601 | val = (ucontrol->value.integer.value[0] & mask); | |
2602 | if (invert) | |
a7a4ac86 | 2603 | val = max - val; |
db2a4165 FM |
2604 | val_mask = mask << shift; |
2605 | val = val << shift; | |
974815ba | 2606 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2607 | val2 = (ucontrol->value.integer.value[1] & mask); |
2608 | if (invert) | |
a7a4ac86 | 2609 | val2 = max - val2; |
974815ba PU |
2610 | if (reg == reg2) { |
2611 | val_mask |= mask << rshift; | |
2612 | val |= val2 << rshift; | |
2613 | } else { | |
2614 | val2 = val2 << shift; | |
2615 | type_2r = 1; | |
2616 | } | |
db2a4165 | 2617 | } |
6c508c62 | 2618 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2619 | if (err < 0) |
db2a4165 FM |
2620 | return err; |
2621 | ||
974815ba PU |
2622 | if (type_2r) |
2623 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2624 | ||
db2a4165 FM |
2625 | return err; |
2626 | } | |
974815ba | 2627 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2628 | |
1d99f243 BA |
2629 | /** |
2630 | * snd_soc_get_volsw_sx - single mixer get callback | |
2631 | * @kcontrol: mixer control | |
2632 | * @ucontrol: control element information | |
2633 | * | |
2634 | * Callback to get the value of a single mixer control, or a double mixer | |
2635 | * control that spans 2 registers. | |
2636 | * | |
2637 | * Returns 0 for success. | |
2638 | */ | |
2639 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, | |
2640 | struct snd_ctl_elem_value *ucontrol) | |
2641 | { | |
2642 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2643 | struct soc_mixer_control *mc = | |
2644 | (struct soc_mixer_control *)kcontrol->private_value; | |
2645 | ||
2646 | unsigned int reg = mc->reg; | |
2647 | unsigned int reg2 = mc->rreg; | |
2648 | unsigned int shift = mc->shift; | |
2649 | unsigned int rshift = mc->rshift; | |
2650 | int max = mc->max; | |
2651 | int min = mc->min; | |
2652 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
2653 | ||
2654 | ucontrol->value.integer.value[0] = | |
2655 | ((snd_soc_read(codec, reg) >> shift) - min) & mask; | |
2656 | ||
2657 | if (snd_soc_volsw_is_stereo(mc)) | |
2658 | ucontrol->value.integer.value[1] = | |
2659 | ((snd_soc_read(codec, reg2) >> rshift) - min) & mask; | |
2660 | ||
2661 | return 0; | |
2662 | } | |
2663 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); | |
2664 | ||
2665 | /** | |
2666 | * snd_soc_put_volsw_sx - double mixer set callback | |
2667 | * @kcontrol: mixer control | |
2668 | * @uinfo: control element information | |
2669 | * | |
2670 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2671 | * | |
2672 | * Returns 0 for success. | |
2673 | */ | |
2674 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, | |
2675 | struct snd_ctl_elem_value *ucontrol) | |
2676 | { | |
2677 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2678 | struct soc_mixer_control *mc = | |
2679 | (struct soc_mixer_control *)kcontrol->private_value; | |
2680 | ||
2681 | unsigned int reg = mc->reg; | |
2682 | unsigned int reg2 = mc->rreg; | |
2683 | unsigned int shift = mc->shift; | |
2684 | unsigned int rshift = mc->rshift; | |
2685 | int max = mc->max; | |
2686 | int min = mc->min; | |
2687 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
27f1d759 | 2688 | int err = 0; |
1d99f243 BA |
2689 | unsigned short val, val_mask, val2 = 0; |
2690 | ||
2691 | val_mask = mask << shift; | |
2692 | val = (ucontrol->value.integer.value[0] + min) & mask; | |
2693 | val = val << shift; | |
2694 | ||
2695 | if (snd_soc_update_bits_locked(codec, reg, val_mask, val)) | |
2696 | return err; | |
2697 | ||
2698 | if (snd_soc_volsw_is_stereo(mc)) { | |
2699 | val_mask = mask << rshift; | |
2700 | val2 = (ucontrol->value.integer.value[1] + min) & mask; | |
2701 | val2 = val2 << rshift; | |
2702 | ||
2703 | if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2)) | |
2704 | return err; | |
2705 | } | |
2706 | return 0; | |
2707 | } | |
2708 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); | |
2709 | ||
e13ac2e9 MB |
2710 | /** |
2711 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2712 | * @kcontrol: mixer control | |
2713 | * @uinfo: control element information | |
2714 | * | |
2715 | * Callback to provide information about a signed mixer control. | |
2716 | * | |
2717 | * Returns 0 for success. | |
2718 | */ | |
2719 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2720 | struct snd_ctl_elem_info *uinfo) | |
2721 | { | |
4eaa9819 JS |
2722 | struct soc_mixer_control *mc = |
2723 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2724 | int platform_max; |
4eaa9819 | 2725 | int min = mc->min; |
e13ac2e9 | 2726 | |
d11bb4a9 PU |
2727 | if (!mc->platform_max) |
2728 | mc->platform_max = mc->max; | |
2729 | platform_max = mc->platform_max; | |
2730 | ||
e13ac2e9 MB |
2731 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2732 | uinfo->count = 2; | |
2733 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2734 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2735 | return 0; |
2736 | } | |
2737 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2738 | ||
2739 | /** | |
2740 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2741 | * @kcontrol: mixer control | |
ac11a2b3 | 2742 | * @ucontrol: control element information |
e13ac2e9 MB |
2743 | * |
2744 | * Callback to get the value of a signed mixer control. | |
2745 | * | |
2746 | * Returns 0 for success. | |
2747 | */ | |
2748 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2749 | struct snd_ctl_elem_value *ucontrol) | |
2750 | { | |
4eaa9819 JS |
2751 | struct soc_mixer_control *mc = |
2752 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2753 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2754 | unsigned int reg = mc->reg; |
4eaa9819 | 2755 | int min = mc->min; |
e13ac2e9 MB |
2756 | int val = snd_soc_read(codec, reg); |
2757 | ||
2758 | ucontrol->value.integer.value[0] = | |
2759 | ((signed char)(val & 0xff))-min; | |
2760 | ucontrol->value.integer.value[1] = | |
2761 | ((signed char)((val >> 8) & 0xff))-min; | |
2762 | return 0; | |
2763 | } | |
2764 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2765 | ||
2766 | /** | |
2767 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2768 | * @kcontrol: mixer control | |
ac11a2b3 | 2769 | * @ucontrol: control element information |
e13ac2e9 MB |
2770 | * |
2771 | * Callback to set the value of a signed mixer control. | |
2772 | * | |
2773 | * Returns 0 for success. | |
2774 | */ | |
2775 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2776 | struct snd_ctl_elem_value *ucontrol) | |
2777 | { | |
4eaa9819 JS |
2778 | struct soc_mixer_control *mc = |
2779 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2780 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2781 | unsigned int reg = mc->reg; |
4eaa9819 | 2782 | int min = mc->min; |
46f5822f | 2783 | unsigned int val; |
e13ac2e9 MB |
2784 | |
2785 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2786 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2787 | ||
6c508c62 | 2788 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2789 | } |
2790 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2791 | ||
637d3847 PU |
2792 | /** |
2793 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2794 | * | |
2795 | * @codec: where to look for the control | |
2796 | * @name: Name of the control | |
2797 | * @max: new maximum limit | |
2798 | * | |
2799 | * Return 0 for success, else error. | |
2800 | */ | |
2801 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2802 | const char *name, int max) | |
2803 | { | |
f0fba2ad | 2804 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2805 | struct snd_kcontrol *kctl; |
2806 | struct soc_mixer_control *mc; | |
2807 | int found = 0; | |
2808 | int ret = -EINVAL; | |
2809 | ||
2810 | /* Sanity check for name and max */ | |
2811 | if (unlikely(!name || max <= 0)) | |
2812 | return -EINVAL; | |
2813 | ||
2814 | list_for_each_entry(kctl, &card->controls, list) { | |
2815 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2816 | found = 1; | |
2817 | break; | |
2818 | } | |
2819 | } | |
2820 | if (found) { | |
2821 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2822 | if (max <= mc->max) { | |
d11bb4a9 | 2823 | mc->platform_max = max; |
637d3847 PU |
2824 | ret = 0; |
2825 | } | |
2826 | } | |
2827 | return ret; | |
2828 | } | |
2829 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2830 | ||
71d08516 MB |
2831 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, |
2832 | struct snd_ctl_elem_info *uinfo) | |
2833 | { | |
2834 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2835 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2836 | ||
2837 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
2838 | uinfo->count = params->num_regs * codec->val_bytes; | |
2839 | ||
2840 | return 0; | |
2841 | } | |
2842 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
2843 | ||
2844 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
2845 | struct snd_ctl_elem_value *ucontrol) | |
2846 | { | |
2847 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2848 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2849 | int ret; | |
2850 | ||
2851 | if (codec->using_regmap) | |
2852 | ret = regmap_raw_read(codec->control_data, params->base, | |
2853 | ucontrol->value.bytes.data, | |
2854 | params->num_regs * codec->val_bytes); | |
2855 | else | |
2856 | ret = -EINVAL; | |
2857 | ||
f831b055 MB |
2858 | /* Hide any masked bytes to ensure consistent data reporting */ |
2859 | if (ret == 0 && params->mask) { | |
2860 | switch (codec->val_bytes) { | |
2861 | case 1: | |
2862 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
2863 | break; | |
2864 | case 2: | |
2865 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
2866 | &= ~params->mask; | |
2867 | break; | |
2868 | case 4: | |
2869 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
2870 | &= ~params->mask; | |
2871 | break; | |
2872 | default: | |
2873 | return -EINVAL; | |
2874 | } | |
2875 | } | |
2876 | ||
71d08516 MB |
2877 | return ret; |
2878 | } | |
2879 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
2880 | ||
2881 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
2882 | struct snd_ctl_elem_value *ucontrol) | |
2883 | { | |
2884 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2885 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
f831b055 MB |
2886 | int ret, len; |
2887 | unsigned int val; | |
2888 | void *data; | |
71d08516 | 2889 | |
f831b055 MB |
2890 | if (!codec->using_regmap) |
2891 | return -EINVAL; | |
2892 | ||
2893 | data = ucontrol->value.bytes.data; | |
2894 | len = params->num_regs * codec->val_bytes; | |
2895 | ||
2896 | /* | |
2897 | * If we've got a mask then we need to preserve the register | |
2898 | * bits. We shouldn't modify the incoming data so take a | |
2899 | * copy. | |
2900 | */ | |
2901 | if (params->mask) { | |
2902 | ret = regmap_read(codec->control_data, params->base, &val); | |
2903 | if (ret != 0) | |
2904 | return ret; | |
2905 | ||
2906 | val &= params->mask; | |
2907 | ||
2908 | data = kmemdup(data, len, GFP_KERNEL); | |
2909 | if (!data) | |
2910 | return -ENOMEM; | |
2911 | ||
2912 | switch (codec->val_bytes) { | |
2913 | case 1: | |
2914 | ((u8 *)data)[0] &= ~params->mask; | |
2915 | ((u8 *)data)[0] |= val; | |
2916 | break; | |
2917 | case 2: | |
2918 | ((u16 *)data)[0] &= cpu_to_be16(~params->mask); | |
2919 | ((u16 *)data)[0] |= cpu_to_be16(val); | |
2920 | break; | |
2921 | case 4: | |
2922 | ((u32 *)data)[0] &= cpu_to_be32(~params->mask); | |
2923 | ((u32 *)data)[0] |= cpu_to_be32(val); | |
2924 | break; | |
2925 | default: | |
2926 | return -EINVAL; | |
2927 | } | |
2928 | } | |
2929 | ||
2930 | ret = regmap_raw_write(codec->control_data, params->base, | |
2931 | data, len); | |
2932 | ||
2933 | if (params->mask) | |
2934 | kfree(data); | |
71d08516 MB |
2935 | |
2936 | return ret; | |
2937 | } | |
2938 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
2939 | ||
4183eed2 KK |
2940 | /** |
2941 | * snd_soc_info_xr_sx - signed multi register info callback | |
2942 | * @kcontrol: mreg control | |
2943 | * @uinfo: control element information | |
2944 | * | |
2945 | * Callback to provide information of a control that can | |
2946 | * span multiple codec registers which together | |
2947 | * forms a single signed value in a MSB/LSB manner. | |
2948 | * | |
2949 | * Returns 0 for success. | |
2950 | */ | |
2951 | int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, | |
2952 | struct snd_ctl_elem_info *uinfo) | |
2953 | { | |
2954 | struct soc_mreg_control *mc = | |
2955 | (struct soc_mreg_control *)kcontrol->private_value; | |
2956 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2957 | uinfo->count = 1; | |
2958 | uinfo->value.integer.min = mc->min; | |
2959 | uinfo->value.integer.max = mc->max; | |
2960 | ||
2961 | return 0; | |
2962 | } | |
2963 | EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); | |
2964 | ||
2965 | /** | |
2966 | * snd_soc_get_xr_sx - signed multi register get callback | |
2967 | * @kcontrol: mreg control | |
2968 | * @ucontrol: control element information | |
2969 | * | |
2970 | * Callback to get the value of a control that can span | |
2971 | * multiple codec registers which together forms a single | |
2972 | * signed value in a MSB/LSB manner. The control supports | |
2973 | * specifying total no of bits used to allow for bitfields | |
2974 | * across the multiple codec registers. | |
2975 | * | |
2976 | * Returns 0 for success. | |
2977 | */ | |
2978 | int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, | |
2979 | struct snd_ctl_elem_value *ucontrol) | |
2980 | { | |
2981 | struct soc_mreg_control *mc = | |
2982 | (struct soc_mreg_control *)kcontrol->private_value; | |
2983 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2984 | unsigned int regbase = mc->regbase; | |
2985 | unsigned int regcount = mc->regcount; | |
2986 | unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; | |
2987 | unsigned int regwmask = (1<<regwshift)-1; | |
2988 | unsigned int invert = mc->invert; | |
2989 | unsigned long mask = (1UL<<mc->nbits)-1; | |
2990 | long min = mc->min; | |
2991 | long max = mc->max; | |
2992 | long val = 0; | |
2993 | unsigned long regval; | |
2994 | unsigned int i; | |
2995 | ||
2996 | for (i = 0; i < regcount; i++) { | |
2997 | regval = snd_soc_read(codec, regbase+i) & regwmask; | |
2998 | val |= regval << (regwshift*(regcount-i-1)); | |
2999 | } | |
3000 | val &= mask; | |
3001 | if (min < 0 && val > max) | |
3002 | val |= ~mask; | |
3003 | if (invert) | |
3004 | val = max - val; | |
3005 | ucontrol->value.integer.value[0] = val; | |
3006 | ||
3007 | return 0; | |
3008 | } | |
3009 | EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); | |
3010 | ||
3011 | /** | |
3012 | * snd_soc_put_xr_sx - signed multi register get callback | |
3013 | * @kcontrol: mreg control | |
3014 | * @ucontrol: control element information | |
3015 | * | |
3016 | * Callback to set the value of a control that can span | |
3017 | * multiple codec registers which together forms a single | |
3018 | * signed value in a MSB/LSB manner. The control supports | |
3019 | * specifying total no of bits used to allow for bitfields | |
3020 | * across the multiple codec registers. | |
3021 | * | |
3022 | * Returns 0 for success. | |
3023 | */ | |
3024 | int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, | |
3025 | struct snd_ctl_elem_value *ucontrol) | |
3026 | { | |
3027 | struct soc_mreg_control *mc = | |
3028 | (struct soc_mreg_control *)kcontrol->private_value; | |
3029 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3030 | unsigned int regbase = mc->regbase; | |
3031 | unsigned int regcount = mc->regcount; | |
3032 | unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; | |
3033 | unsigned int regwmask = (1<<regwshift)-1; | |
3034 | unsigned int invert = mc->invert; | |
3035 | unsigned long mask = (1UL<<mc->nbits)-1; | |
4183eed2 KK |
3036 | long max = mc->max; |
3037 | long val = ucontrol->value.integer.value[0]; | |
3038 | unsigned int i, regval, regmask; | |
3039 | int err; | |
3040 | ||
3041 | if (invert) | |
3042 | val = max - val; | |
3043 | val &= mask; | |
3044 | for (i = 0; i < regcount; i++) { | |
3045 | regval = (val >> (regwshift*(regcount-i-1))) & regwmask; | |
3046 | regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; | |
3047 | err = snd_soc_update_bits_locked(codec, regbase+i, | |
3048 | regmask, regval); | |
3049 | if (err < 0) | |
3050 | return err; | |
3051 | } | |
3052 | ||
3053 | return 0; | |
3054 | } | |
3055 | EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); | |
3056 | ||
dd7b10b3 KK |
3057 | /** |
3058 | * snd_soc_get_strobe - strobe get callback | |
3059 | * @kcontrol: mixer control | |
3060 | * @ucontrol: control element information | |
3061 | * | |
3062 | * Callback get the value of a strobe mixer control. | |
3063 | * | |
3064 | * Returns 0 for success. | |
3065 | */ | |
3066 | int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, | |
3067 | struct snd_ctl_elem_value *ucontrol) | |
3068 | { | |
3069 | struct soc_mixer_control *mc = | |
3070 | (struct soc_mixer_control *)kcontrol->private_value; | |
3071 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3072 | unsigned int reg = mc->reg; | |
3073 | unsigned int shift = mc->shift; | |
3074 | unsigned int mask = 1 << shift; | |
3075 | unsigned int invert = mc->invert != 0; | |
3076 | unsigned int val = snd_soc_read(codec, reg) & mask; | |
3077 | ||
3078 | if (shift != 0 && val != 0) | |
3079 | val = val >> shift; | |
3080 | ucontrol->value.enumerated.item[0] = val ^ invert; | |
3081 | ||
3082 | return 0; | |
3083 | } | |
3084 | EXPORT_SYMBOL_GPL(snd_soc_get_strobe); | |
3085 | ||
3086 | /** | |
3087 | * snd_soc_put_strobe - strobe put callback | |
3088 | * @kcontrol: mixer control | |
3089 | * @ucontrol: control element information | |
3090 | * | |
3091 | * Callback strobe a register bit to high then low (or the inverse) | |
3092 | * in one pass of a single mixer enum control. | |
3093 | * | |
3094 | * Returns 1 for success. | |
3095 | */ | |
3096 | int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, | |
3097 | struct snd_ctl_elem_value *ucontrol) | |
3098 | { | |
3099 | struct soc_mixer_control *mc = | |
3100 | (struct soc_mixer_control *)kcontrol->private_value; | |
3101 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3102 | unsigned int reg = mc->reg; | |
3103 | unsigned int shift = mc->shift; | |
3104 | unsigned int mask = 1 << shift; | |
3105 | unsigned int invert = mc->invert != 0; | |
3106 | unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; | |
3107 | unsigned int val1 = (strobe ^ invert) ? mask : 0; | |
3108 | unsigned int val2 = (strobe ^ invert) ? 0 : mask; | |
3109 | int err; | |
3110 | ||
3111 | err = snd_soc_update_bits_locked(codec, reg, mask, val1); | |
3112 | if (err < 0) | |
3113 | return err; | |
3114 | ||
3115 | err = snd_soc_update_bits_locked(codec, reg, mask, val2); | |
3116 | return err; | |
3117 | } | |
3118 | EXPORT_SYMBOL_GPL(snd_soc_put_strobe); | |
3119 | ||
8c6529db LG |
3120 | /** |
3121 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3122 | * @dai: DAI | |
3123 | * @clk_id: DAI specific clock ID | |
3124 | * @freq: new clock frequency in Hz | |
3125 | * @dir: new clock direction - input/output. | |
3126 | * | |
3127 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3128 | */ | |
3129 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3130 | unsigned int freq, int dir) | |
3131 | { | |
f0fba2ad LG |
3132 | if (dai->driver && dai->driver->ops->set_sysclk) |
3133 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 3134 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 3135 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 3136 | freq, dir); |
8c6529db LG |
3137 | else |
3138 | return -EINVAL; | |
3139 | } | |
3140 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3141 | ||
ec4ee52a MB |
3142 | /** |
3143 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
3144 | * @codec: CODEC | |
3145 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 3146 | * @source: Source for the clock |
ec4ee52a MB |
3147 | * @freq: new clock frequency in Hz |
3148 | * @dir: new clock direction - input/output. | |
3149 | * | |
3150 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
3151 | */ | |
3152 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 3153 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
3154 | { |
3155 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
3156 | return codec->driver->set_sysclk(codec, clk_id, source, |
3157 | freq, dir); | |
ec4ee52a MB |
3158 | else |
3159 | return -EINVAL; | |
3160 | } | |
3161 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
3162 | ||
8c6529db LG |
3163 | /** |
3164 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3165 | * @dai: DAI | |
ac11a2b3 | 3166 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3167 | * @div: new clock divisor. |
3168 | * | |
3169 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3170 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3171 | * and frame clocks as low as possible to save system power. | |
3172 | */ | |
3173 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3174 | int div_id, int div) | |
3175 | { | |
f0fba2ad LG |
3176 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3177 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3178 | else |
3179 | return -EINVAL; | |
3180 | } | |
3181 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3182 | ||
3183 | /** | |
3184 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3185 | * @dai: DAI | |
3186 | * @pll_id: DAI specific PLL ID | |
85488037 | 3187 | * @source: DAI specific source for the PLL |
8c6529db LG |
3188 | * @freq_in: PLL input clock frequency in Hz |
3189 | * @freq_out: requested PLL output clock frequency in Hz | |
3190 | * | |
3191 | * Configures and enables PLL to generate output clock based on input clock. | |
3192 | */ | |
85488037 MB |
3193 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3194 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3195 | { |
f0fba2ad LG |
3196 | if (dai->driver && dai->driver->ops->set_pll) |
3197 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3198 | freq_in, freq_out); |
ec4ee52a MB |
3199 | else if (dai->codec && dai->codec->driver->set_pll) |
3200 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
3201 | freq_in, freq_out); | |
8c6529db LG |
3202 | else |
3203 | return -EINVAL; | |
3204 | } | |
3205 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3206 | ||
ec4ee52a MB |
3207 | /* |
3208 | * snd_soc_codec_set_pll - configure codec PLL. | |
3209 | * @codec: CODEC | |
3210 | * @pll_id: DAI specific PLL ID | |
3211 | * @source: DAI specific source for the PLL | |
3212 | * @freq_in: PLL input clock frequency in Hz | |
3213 | * @freq_out: requested PLL output clock frequency in Hz | |
3214 | * | |
3215 | * Configures and enables PLL to generate output clock based on input clock. | |
3216 | */ | |
3217 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
3218 | unsigned int freq_in, unsigned int freq_out) | |
3219 | { | |
3220 | if (codec->driver->set_pll) | |
3221 | return codec->driver->set_pll(codec, pll_id, source, | |
3222 | freq_in, freq_out); | |
3223 | else | |
3224 | return -EINVAL; | |
3225 | } | |
3226 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
3227 | ||
8c6529db LG |
3228 | /** |
3229 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3230 | * @dai: DAI | |
8c6529db LG |
3231 | * @fmt: SND_SOC_DAIFMT_ format value. |
3232 | * | |
3233 | * Configures the DAI hardware format and clocking. | |
3234 | */ | |
3235 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3236 | { | |
5e4ba569 | 3237 | if (dai->driver == NULL) |
8c6529db | 3238 | return -EINVAL; |
5e4ba569 SG |
3239 | if (dai->driver->ops->set_fmt == NULL) |
3240 | return -ENOTSUPP; | |
3241 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3242 | } |
3243 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3244 | ||
3245 | /** | |
3246 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3247 | * @dai: DAI | |
a5479e38 DR |
3248 | * @tx_mask: bitmask representing active TX slots. |
3249 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3250 | * @slots: Number of slots in use. |
a5479e38 | 3251 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3252 | * |
3253 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3254 | * specific. | |
3255 | */ | |
3256 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3257 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3258 | { |
f0fba2ad LG |
3259 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3260 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3261 | slots, slot_width); |
8c6529db LG |
3262 | else |
3263 | return -EINVAL; | |
3264 | } | |
3265 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3266 | ||
472df3cb BS |
3267 | /** |
3268 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3269 | * @dai: DAI | |
3270 | * @tx_num: how many TX channels | |
3271 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3272 | * 0~num-1 uses | |
3273 | * @rx_num: how many RX channels | |
3274 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3275 | * 0~num-1 uses | |
3276 | * | |
3277 | * configure the relationship between channel number and TDM slot number. | |
3278 | */ | |
3279 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3280 | unsigned int tx_num, unsigned int *tx_slot, | |
3281 | unsigned int rx_num, unsigned int *rx_slot) | |
3282 | { | |
f0fba2ad LG |
3283 | if (dai->driver && dai->driver->ops->set_channel_map) |
3284 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3285 | rx_num, rx_slot); |
3286 | else | |
3287 | return -EINVAL; | |
3288 | } | |
3289 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3290 | ||
8c6529db LG |
3291 | /** |
3292 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3293 | * @dai: DAI | |
3294 | * @tristate: tristate enable | |
3295 | * | |
3296 | * Tristates the DAI so that others can use it. | |
3297 | */ | |
3298 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3299 | { | |
f0fba2ad LG |
3300 | if (dai->driver && dai->driver->ops->set_tristate) |
3301 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3302 | else |
3303 | return -EINVAL; | |
3304 | } | |
3305 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3306 | ||
3307 | /** | |
3308 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3309 | * @dai: DAI | |
3310 | * @mute: mute enable | |
3311 | * | |
3312 | * Mutes the DAI DAC. | |
3313 | */ | |
3314 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3315 | { | |
f0fba2ad LG |
3316 | if (dai->driver && dai->driver->ops->digital_mute) |
3317 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db | 3318 | else |
04570c62 | 3319 | return -ENOTSUPP; |
8c6529db LG |
3320 | } |
3321 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3322 | ||
c5af3a2e MB |
3323 | /** |
3324 | * snd_soc_register_card - Register a card with the ASoC core | |
3325 | * | |
ac11a2b3 | 3326 | * @card: Card to register |
c5af3a2e | 3327 | * |
c5af3a2e | 3328 | */ |
70a7ca34 | 3329 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3330 | { |
b19e6e7b | 3331 | int i, ret; |
f0fba2ad | 3332 | |
c5af3a2e MB |
3333 | if (!card->name || !card->dev) |
3334 | return -EINVAL; | |
3335 | ||
5a504963 SW |
3336 | for (i = 0; i < card->num_links; i++) { |
3337 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
3338 | ||
3339 | /* | |
3340 | * Codec must be specified by 1 of name or OF node, | |
3341 | * not both or neither. | |
3342 | */ | |
3343 | if (!!link->codec_name == !!link->codec_of_node) { | |
3344 | dev_err(card->dev, | |
3b09bb82 LG |
3345 | "Neither/both codec name/of_node are set for %s\n", |
3346 | link->name); | |
5a504963 SW |
3347 | return -EINVAL; |
3348 | } | |
3349 | ||
3350 | /* | |
3351 | * Platform may be specified by either name or OF node, but | |
3352 | * can be left unspecified, and a dummy platform will be used. | |
3353 | */ | |
3354 | if (link->platform_name && link->platform_of_node) { | |
3355 | dev_err(card->dev, | |
3b09bb82 | 3356 | "Both platform name/of_node are set for %s\n", link->name); |
5a504963 SW |
3357 | return -EINVAL; |
3358 | } | |
3359 | ||
3360 | /* | |
3361 | * CPU DAI must be specified by 1 of name or OF node, | |
3362 | * not both or neither. | |
3363 | */ | |
3364 | if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) { | |
3365 | dev_err(card->dev, | |
3b09bb82 LG |
3366 | "Neither/both cpu_dai name/of_node are set for %s\n", |
3367 | link->name); | |
5a504963 SW |
3368 | return -EINVAL; |
3369 | } | |
3370 | } | |
3371 | ||
ed77cc12 MB |
3372 | dev_set_drvdata(card->dev, card); |
3373 | ||
111c6419 SW |
3374 | snd_soc_initialize_card_lists(card); |
3375 | ||
150dd2f8 VK |
3376 | soc_init_card_debugfs(card); |
3377 | ||
181a6892 MB |
3378 | card->rtd = devm_kzalloc(card->dev, |
3379 | sizeof(struct snd_soc_pcm_runtime) * | |
3380 | (card->num_links + card->num_aux_devs), | |
3381 | GFP_KERNEL); | |
f0fba2ad LG |
3382 | if (card->rtd == NULL) |
3383 | return -ENOMEM; | |
a7dbb603 | 3384 | card->num_rtd = 0; |
2eea392d | 3385 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3386 | |
3387 | for (i = 0; i < card->num_links; i++) | |
3388 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3389 | ||
c5af3a2e | 3390 | INIT_LIST_HEAD(&card->list); |
db432b41 | 3391 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 3392 | card->instantiated = 0; |
f0fba2ad | 3393 | mutex_init(&card->mutex); |
a73fb2df | 3394 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 3395 | |
b19e6e7b MB |
3396 | ret = snd_soc_instantiate_card(card); |
3397 | if (ret != 0) | |
3398 | soc_cleanup_card_debugfs(card); | |
c5af3a2e | 3399 | |
b19e6e7b | 3400 | return ret; |
c5af3a2e | 3401 | } |
70a7ca34 | 3402 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3403 | |
3404 | /** | |
3405 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3406 | * | |
ac11a2b3 | 3407 | * @card: Card to unregister |
c5af3a2e | 3408 | * |
c5af3a2e | 3409 | */ |
70a7ca34 | 3410 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3411 | { |
b0e26485 VK |
3412 | if (card->instantiated) |
3413 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3414 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3415 | ||
3416 | return 0; | |
3417 | } | |
70a7ca34 | 3418 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3419 | |
f0fba2ad LG |
3420 | /* |
3421 | * Simplify DAI link configuration by removing ".-1" from device names | |
3422 | * and sanitizing names. | |
3423 | */ | |
0b9a214a | 3424 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3425 | { |
3426 | char *found, name[NAME_SIZE]; | |
3427 | int id1, id2; | |
3428 | ||
3429 | if (dev_name(dev) == NULL) | |
3430 | return NULL; | |
3431 | ||
58818a77 | 3432 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3433 | |
3434 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3435 | found = strstr(name, dev->driver->name); | |
3436 | if (found) { | |
3437 | /* get ID */ | |
3438 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3439 | ||
3440 | /* discard ID from name if ID == -1 */ | |
3441 | if (*id == -1) | |
3442 | found[strlen(dev->driver->name)] = '\0'; | |
3443 | } | |
3444 | ||
3445 | } else { | |
3446 | /* I2C component devices are named "bus-addr" */ | |
3447 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3448 | char tmp[NAME_SIZE]; | |
3449 | ||
3450 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3451 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3452 | |
3453 | /* sanitize component name for DAI link creation */ | |
3454 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3455 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3456 | } else |
3457 | *id = 0; | |
3458 | } | |
3459 | ||
3460 | return kstrdup(name, GFP_KERNEL); | |
3461 | } | |
3462 | ||
3463 | /* | |
3464 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3465 | * any ".-1" and using the DAI name (instead of device name). | |
3466 | */ | |
3467 | static inline char *fmt_multiple_name(struct device *dev, | |
3468 | struct snd_soc_dai_driver *dai_drv) | |
3469 | { | |
3470 | if (dai_drv->name == NULL) { | |
0837fc62 | 3471 | pr_err("asoc: error - multiple DAI %s registered with no name\n", |
f0fba2ad LG |
3472 | dev_name(dev)); |
3473 | return NULL; | |
3474 | } | |
3475 | ||
3476 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3477 | } | |
3478 | ||
9115171a MB |
3479 | /** |
3480 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3481 | * | |
ac11a2b3 | 3482 | * @dai: DAI to register |
9115171a | 3483 | */ |
f0fba2ad LG |
3484 | int snd_soc_register_dai(struct device *dev, |
3485 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3486 | { |
054880fe | 3487 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3488 | struct snd_soc_dai *dai; |
3489 | ||
3490 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3491 | |
f0fba2ad LG |
3492 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3493 | if (dai == NULL) | |
a7393623 | 3494 | return -ENOMEM; |
9115171a | 3495 | |
f0fba2ad LG |
3496 | /* create DAI component name */ |
3497 | dai->name = fmt_single_name(dev, &dai->id); | |
3498 | if (dai->name == NULL) { | |
3499 | kfree(dai); | |
3500 | return -ENOMEM; | |
3501 | } | |
6335d055 | 3502 | |
f0fba2ad LG |
3503 | dai->dev = dev; |
3504 | dai->driver = dai_drv; | |
be09ad90 | 3505 | dai->dapm.dev = dev; |
f0fba2ad LG |
3506 | if (!dai->driver->ops) |
3507 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3508 | |
3509 | mutex_lock(&client_mutex); | |
054880fe MB |
3510 | |
3511 | list_for_each_entry(codec, &codec_list, list) { | |
3512 | if (codec->dev == dev) { | |
3513 | dev_dbg(dev, "Mapped DAI %s to CODEC %s\n", | |
3514 | dai->name, codec->name); | |
3515 | dai->codec = codec; | |
3516 | break; | |
3517 | } | |
3518 | } | |
3519 | ||
9115171a | 3520 | list_add(&dai->list, &dai_list); |
054880fe | 3521 | |
9115171a MB |
3522 | mutex_unlock(&client_mutex); |
3523 | ||
3524 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3525 | ||
3526 | return 0; | |
3527 | } | |
3528 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3529 | ||
3530 | /** | |
3531 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3532 | * | |
ac11a2b3 | 3533 | * @dai: DAI to unregister |
9115171a | 3534 | */ |
f0fba2ad | 3535 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3536 | { |
f0fba2ad LG |
3537 | struct snd_soc_dai *dai; |
3538 | ||
3539 | list_for_each_entry(dai, &dai_list, list) { | |
3540 | if (dev == dai->dev) | |
3541 | goto found; | |
3542 | } | |
3543 | return; | |
3544 | ||
3545 | found: | |
9115171a MB |
3546 | mutex_lock(&client_mutex); |
3547 | list_del(&dai->list); | |
3548 | mutex_unlock(&client_mutex); | |
3549 | ||
3550 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3551 | kfree(dai->name); |
3552 | kfree(dai); | |
9115171a MB |
3553 | } |
3554 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3555 | ||
3556 | /** | |
3557 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3558 | * | |
ac11a2b3 MB |
3559 | * @dai: Array of DAIs to register |
3560 | * @count: Number of DAIs | |
9115171a | 3561 | */ |
f0fba2ad LG |
3562 | int snd_soc_register_dais(struct device *dev, |
3563 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3564 | { |
054880fe | 3565 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3566 | struct snd_soc_dai *dai; |
3567 | int i, ret = 0; | |
3568 | ||
720ffa4c | 3569 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3570 | |
3571 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3572 | |
3573 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3574 | if (dai == NULL) { |
3575 | ret = -ENOMEM; | |
3576 | goto err; | |
3577 | } | |
f0fba2ad LG |
3578 | |
3579 | /* create DAI component name */ | |
3580 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3581 | if (dai->name == NULL) { | |
3582 | kfree(dai); | |
3583 | ret = -EINVAL; | |
9115171a | 3584 | goto err; |
f0fba2ad LG |
3585 | } |
3586 | ||
3587 | dai->dev = dev; | |
f0fba2ad | 3588 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3589 | if (dai->driver->id) |
3590 | dai->id = dai->driver->id; | |
3591 | else | |
3592 | dai->id = i; | |
be09ad90 | 3593 | dai->dapm.dev = dev; |
f0fba2ad LG |
3594 | if (!dai->driver->ops) |
3595 | dai->driver->ops = &null_dai_ops; | |
3596 | ||
3597 | mutex_lock(&client_mutex); | |
054880fe MB |
3598 | |
3599 | list_for_each_entry(codec, &codec_list, list) { | |
3600 | if (codec->dev == dev) { | |
3601 | dev_dbg(dev, "Mapped DAI %s to CODEC %s\n", | |
3602 | dai->name, codec->name); | |
3603 | dai->codec = codec; | |
3604 | break; | |
3605 | } | |
3606 | } | |
3607 | ||
f0fba2ad | 3608 | list_add(&dai->list, &dai_list); |
054880fe | 3609 | |
f0fba2ad LG |
3610 | mutex_unlock(&client_mutex); |
3611 | ||
3612 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3613 | } |
3614 | ||
3615 | return 0; | |
3616 | ||
3617 | err: | |
3618 | for (i--; i >= 0; i--) | |
f0fba2ad | 3619 | snd_soc_unregister_dai(dev); |
9115171a MB |
3620 | |
3621 | return ret; | |
3622 | } | |
3623 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3624 | ||
3625 | /** | |
3626 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3627 | * | |
ac11a2b3 MB |
3628 | * @dai: Array of DAIs to unregister |
3629 | * @count: Number of DAIs | |
9115171a | 3630 | */ |
f0fba2ad | 3631 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3632 | { |
3633 | int i; | |
3634 | ||
3635 | for (i = 0; i < count; i++) | |
f0fba2ad | 3636 | snd_soc_unregister_dai(dev); |
9115171a MB |
3637 | } |
3638 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3639 | ||
12a48a8c MB |
3640 | /** |
3641 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3642 | * | |
ac11a2b3 | 3643 | * @platform: platform to register |
12a48a8c | 3644 | */ |
f0fba2ad LG |
3645 | int snd_soc_register_platform(struct device *dev, |
3646 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3647 | { |
f0fba2ad LG |
3648 | struct snd_soc_platform *platform; |
3649 | ||
3650 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3651 | ||
3652 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3653 | if (platform == NULL) | |
a7393623 | 3654 | return -ENOMEM; |
f0fba2ad LG |
3655 | |
3656 | /* create platform component name */ | |
3657 | platform->name = fmt_single_name(dev, &platform->id); | |
3658 | if (platform->name == NULL) { | |
3659 | kfree(platform); | |
3660 | return -ENOMEM; | |
3661 | } | |
12a48a8c | 3662 | |
f0fba2ad LG |
3663 | platform->dev = dev; |
3664 | platform->driver = platform_drv; | |
b7950641 LG |
3665 | platform->dapm.dev = dev; |
3666 | platform->dapm.platform = platform; | |
64a648c2 | 3667 | platform->dapm.stream_event = platform_drv->stream_event; |
cc22d37e | 3668 | mutex_init(&platform->mutex); |
12a48a8c MB |
3669 | |
3670 | mutex_lock(&client_mutex); | |
3671 | list_add(&platform->list, &platform_list); | |
3672 | mutex_unlock(&client_mutex); | |
3673 | ||
3674 | pr_debug("Registered platform '%s'\n", platform->name); | |
3675 | ||
3676 | return 0; | |
3677 | } | |
3678 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3679 | ||
3680 | /** | |
3681 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3682 | * | |
ac11a2b3 | 3683 | * @platform: platform to unregister |
12a48a8c | 3684 | */ |
f0fba2ad | 3685 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3686 | { |
f0fba2ad LG |
3687 | struct snd_soc_platform *platform; |
3688 | ||
3689 | list_for_each_entry(platform, &platform_list, list) { | |
3690 | if (dev == platform->dev) | |
3691 | goto found; | |
3692 | } | |
3693 | return; | |
3694 | ||
3695 | found: | |
12a48a8c MB |
3696 | mutex_lock(&client_mutex); |
3697 | list_del(&platform->list); | |
3698 | mutex_unlock(&client_mutex); | |
3699 | ||
3700 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3701 | kfree(platform->name); |
3702 | kfree(platform); | |
12a48a8c MB |
3703 | } |
3704 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3705 | ||
151ab22c MB |
3706 | static u64 codec_format_map[] = { |
3707 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3708 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3709 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3710 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3711 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3712 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3713 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3714 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3715 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3716 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3717 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3718 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3719 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3720 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3721 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3722 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3723 | }; | |
3724 | ||
3725 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3726 | * the endianness of the data but we're using the CPU format | |
3727 | * definitions which do need to include endianness so we ensure that | |
3728 | * codec DAIs always have both big and little endian variants set. | |
3729 | */ | |
3730 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3731 | { | |
3732 | int i; | |
3733 | ||
3734 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3735 | if (stream->formats & codec_format_map[i]) | |
3736 | stream->formats |= codec_format_map[i]; | |
3737 | } | |
3738 | ||
0d0cf00a MB |
3739 | /** |
3740 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3741 | * | |
ac11a2b3 | 3742 | * @codec: codec to register |
0d0cf00a | 3743 | */ |
f0fba2ad | 3744 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3745 | const struct snd_soc_codec_driver *codec_drv, |
3746 | struct snd_soc_dai_driver *dai_drv, | |
3747 | int num_dai) | |
0d0cf00a | 3748 | { |
3335ddca | 3749 | size_t reg_size; |
f0fba2ad LG |
3750 | struct snd_soc_codec *codec; |
3751 | int ret, i; | |
151ab22c | 3752 | |
f0fba2ad LG |
3753 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3754 | ||
3755 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3756 | if (codec == NULL) | |
3757 | return -ENOMEM; | |
0d0cf00a | 3758 | |
f0fba2ad LG |
3759 | /* create CODEC component name */ |
3760 | codec->name = fmt_single_name(dev, &codec->id); | |
3761 | if (codec->name == NULL) { | |
3762 | kfree(codec); | |
3763 | return -ENOMEM; | |
3764 | } | |
3765 | ||
23bbce34 DP |
3766 | if (codec_drv->compress_type) |
3767 | codec->compress_type = codec_drv->compress_type; | |
3768 | else | |
3769 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3770 | ||
c3acec26 MB |
3771 | codec->write = codec_drv->write; |
3772 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3773 | codec->volatile_register = codec_drv->volatile_register; |
3774 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3775 | codec->writable_register = codec_drv->writable_register; |
5124e69e | 3776 | codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
ce6120cc LG |
3777 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3778 | codec->dapm.dev = dev; | |
3779 | codec->dapm.codec = codec; | |
474b62d6 | 3780 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3781 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3782 | codec->dev = dev; |
3783 | codec->driver = codec_drv; | |
3784 | codec->num_dai = num_dai; | |
3785 | mutex_init(&codec->mutex); | |
ce6120cc | 3786 | |
f0fba2ad LG |
3787 | /* allocate CODEC register cache */ |
3788 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3789 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3790 | codec->reg_size = reg_size; |
3335ddca DP |
3791 | /* it is necessary to make a copy of the default register cache |
3792 | * because in the case of using a compression type that requires | |
3793 | * the default register cache to be marked as __devinitconst the | |
3794 | * kernel might have freed the array by the time we initialize | |
3795 | * the cache. | |
3796 | */ | |
2aa86323 DP |
3797 | if (codec_drv->reg_cache_default) { |
3798 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3799 | reg_size, GFP_KERNEL); | |
3800 | if (!codec->reg_def_copy) { | |
3801 | ret = -ENOMEM; | |
3802 | goto fail; | |
3803 | } | |
f0fba2ad | 3804 | } |
151ab22c MB |
3805 | } |
3806 | ||
1500b7b5 DP |
3807 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3808 | if (!codec->volatile_register) | |
3809 | codec->volatile_register = snd_soc_default_volatile_register; | |
3810 | if (!codec->readable_register) | |
3811 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3812 | if (!codec->writable_register) |
3813 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3814 | } |
3815 | ||
f0fba2ad LG |
3816 | for (i = 0; i < num_dai; i++) { |
3817 | fixup_codec_formats(&dai_drv[i].playback); | |
3818 | fixup_codec_formats(&dai_drv[i].capture); | |
3819 | } | |
3820 | ||
054880fe MB |
3821 | mutex_lock(&client_mutex); |
3822 | list_add(&codec->list, &codec_list); | |
3823 | mutex_unlock(&client_mutex); | |
3824 | ||
26b01ccd MB |
3825 | /* register any DAIs */ |
3826 | if (num_dai) { | |
3827 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3828 | if (ret < 0) | |
054880fe MB |
3829 | dev_err(codec->dev, "Failed to regster DAIs: %d\n", |
3830 | ret); | |
26b01ccd | 3831 | } |
f0fba2ad | 3832 | |
0d0cf00a | 3833 | pr_debug("Registered codec '%s'\n", codec->name); |
0d0cf00a | 3834 | return 0; |
f0fba2ad | 3835 | |
fdf0f54d | 3836 | fail: |
3335ddca DP |
3837 | kfree(codec->reg_def_copy); |
3838 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3839 | kfree(codec->name); |
3840 | kfree(codec); | |
3841 | return ret; | |
0d0cf00a MB |
3842 | } |
3843 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3844 | ||
3845 | /** | |
3846 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3847 | * | |
ac11a2b3 | 3848 | * @codec: codec to unregister |
0d0cf00a | 3849 | */ |
f0fba2ad | 3850 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3851 | { |
f0fba2ad LG |
3852 | struct snd_soc_codec *codec; |
3853 | int i; | |
3854 | ||
3855 | list_for_each_entry(codec, &codec_list, list) { | |
3856 | if (dev == codec->dev) | |
3857 | goto found; | |
3858 | } | |
3859 | return; | |
3860 | ||
3861 | found: | |
26b01ccd MB |
3862 | if (codec->num_dai) |
3863 | for (i = 0; i < codec->num_dai; i++) | |
3864 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3865 | |
0d0cf00a MB |
3866 | mutex_lock(&client_mutex); |
3867 | list_del(&codec->list); | |
3868 | mutex_unlock(&client_mutex); | |
3869 | ||
3870 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3871 | |
7a30a3db | 3872 | snd_soc_cache_exit(codec); |
3335ddca | 3873 | kfree(codec->reg_def_copy); |
1aafcd4d | 3874 | kfree(codec->name); |
f0fba2ad | 3875 | kfree(codec); |
0d0cf00a MB |
3876 | } |
3877 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3878 | ||
bec4fa05 SW |
3879 | /* Retrieve a card's name from device tree */ |
3880 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3881 | const char *propname) | |
3882 | { | |
3883 | struct device_node *np = card->dev->of_node; | |
3884 | int ret; | |
3885 | ||
3886 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
3887 | /* | |
3888 | * EINVAL means the property does not exist. This is fine providing | |
3889 | * card->name was previously set, which is checked later in | |
3890 | * snd_soc_register_card. | |
3891 | */ | |
3892 | if (ret < 0 && ret != -EINVAL) { | |
3893 | dev_err(card->dev, | |
3894 | "Property '%s' could not be read: %d\n", | |
3895 | propname, ret); | |
3896 | return ret; | |
3897 | } | |
3898 | ||
3899 | return 0; | |
3900 | } | |
3901 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3902 | ||
a4a54dd5 SW |
3903 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3904 | const char *propname) | |
3905 | { | |
3906 | struct device_node *np = card->dev->of_node; | |
3907 | int num_routes; | |
3908 | struct snd_soc_dapm_route *routes; | |
3909 | int i, ret; | |
3910 | ||
3911 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 3912 | if (num_routes < 0 || num_routes & 1) { |
a4a54dd5 | 3913 | dev_err(card->dev, |
c34ce320 RZ |
3914 | "Property '%s' does not exist or its length is not even\n", |
3915 | propname); | |
a4a54dd5 SW |
3916 | return -EINVAL; |
3917 | } | |
3918 | num_routes /= 2; | |
3919 | if (!num_routes) { | |
3920 | dev_err(card->dev, | |
3921 | "Property '%s's length is zero\n", | |
3922 | propname); | |
3923 | return -EINVAL; | |
3924 | } | |
3925 | ||
3926 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
3927 | GFP_KERNEL); | |
3928 | if (!routes) { | |
3929 | dev_err(card->dev, | |
3930 | "Could not allocate DAPM route table\n"); | |
3931 | return -EINVAL; | |
3932 | } | |
3933 | ||
3934 | for (i = 0; i < num_routes; i++) { | |
3935 | ret = of_property_read_string_index(np, propname, | |
3936 | 2 * i, &routes[i].sink); | |
3937 | if (ret) { | |
3938 | dev_err(card->dev, | |
3939 | "Property '%s' index %d could not be read: %d\n", | |
3940 | propname, 2 * i, ret); | |
3941 | return -EINVAL; | |
3942 | } | |
3943 | ret = of_property_read_string_index(np, propname, | |
3944 | (2 * i) + 1, &routes[i].source); | |
3945 | if (ret) { | |
3946 | dev_err(card->dev, | |
3947 | "Property '%s' index %d could not be read: %d\n", | |
3948 | propname, (2 * i) + 1, ret); | |
3949 | return -EINVAL; | |
3950 | } | |
3951 | } | |
3952 | ||
3953 | card->num_dapm_routes = num_routes; | |
3954 | card->dapm_routes = routes; | |
3955 | ||
3956 | return 0; | |
3957 | } | |
3958 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3959 | ||
c9b3a40f | 3960 | static int __init snd_soc_init(void) |
db2a4165 | 3961 | { |
384c89e2 | 3962 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3963 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3964 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 3965 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 3966 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3967 | } |
c3c5a19a | 3968 | |
8a9dab1a | 3969 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3970 | &codec_list_fops)) |
3971 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3972 | ||
8a9dab1a | 3973 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3974 | &dai_list_fops)) |
3975 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3976 | |
8a9dab1a | 3977 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3978 | &platform_list_fops)) |
3979 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3980 | #endif |
3981 | ||
fb257897 MB |
3982 | snd_soc_util_init(); |
3983 | ||
db2a4165 FM |
3984 | return platform_driver_register(&soc_driver); |
3985 | } | |
4abe8e16 | 3986 | module_init(snd_soc_init); |
db2a4165 | 3987 | |
7d8c16a6 | 3988 | static void __exit snd_soc_exit(void) |
db2a4165 | 3989 | { |
fb257897 MB |
3990 | snd_soc_util_exit(); |
3991 | ||
384c89e2 | 3992 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3993 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3994 | #endif |
3ff3f64b | 3995 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3996 | } |
db2a4165 FM |
3997 | module_exit(snd_soc_exit); |
3998 | ||
3999 | /* Module information */ | |
d331124d | 4000 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
4001 | MODULE_DESCRIPTION("ALSA SoC Core"); |
4002 | MODULE_LICENSE("GPL"); | |
8b45a209 | 4003 | MODULE_ALIAS("platform:soc-audio"); |