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++) { |
43829731 | 594 | flush_delayed_work(&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 | ||
e2d32ff6 MB |
612 | /* Recheck all analogue paths too */ |
613 | dapm_mark_io_dirty(&card->dapm); | |
614 | snd_soc_dapm_sync(&card->dapm); | |
615 | ||
f0fba2ad | 616 | /* suspend all CODECs */ |
2eea392d | 617 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
618 | /* If there are paths active then the CODEC will be held with |
619 | * bias _ON and should not be suspended. */ | |
620 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 621 | switch (codec->dapm.bias_level) { |
f0fba2ad | 622 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
623 | /* |
624 | * If the CODEC is capable of idle | |
625 | * bias off then being in STANDBY | |
626 | * means it's doing something, | |
627 | * otherwise fall through. | |
628 | */ | |
629 | if (codec->dapm.idle_bias_off) { | |
630 | dev_dbg(codec->dev, | |
631 | "idle_bias_off CODEC on over suspend\n"); | |
632 | break; | |
633 | } | |
f0fba2ad | 634 | case SND_SOC_BIAS_OFF: |
84b315ee | 635 | codec->driver->suspend(codec); |
f0fba2ad | 636 | codec->suspended = 1; |
7be4ba24 | 637 | codec->cache_sync = 1; |
da8b8e0f MB |
638 | if (codec->using_regmap) |
639 | regcache_mark_dirty(codec->control_data); | |
f0fba2ad LG |
640 | break; |
641 | default: | |
642 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
643 | break; | |
644 | } | |
1547aba9 MB |
645 | } |
646 | } | |
db2a4165 | 647 | |
f0fba2ad LG |
648 | for (i = 0; i < card->num_rtd; i++) { |
649 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 650 | |
f0fba2ad | 651 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
652 | continue; |
653 | ||
f0fba2ad LG |
654 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
655 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
656 | } |
657 | ||
87506549 | 658 | if (card->suspend_post) |
70b2ac12 | 659 | card->suspend_post(card); |
db2a4165 FM |
660 | |
661 | return 0; | |
662 | } | |
6f8ab4ac | 663 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 664 | |
6ed25978 AG |
665 | /* deferred resume work, so resume can complete before we finished |
666 | * setting our codec back up, which can be very slow on I2C | |
667 | */ | |
668 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 669 | { |
f0fba2ad LG |
670 | struct snd_soc_card *card = |
671 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 672 | struct snd_soc_codec *codec; |
db2a4165 FM |
673 | int i; |
674 | ||
6ed25978 AG |
675 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
676 | * so userspace apps are blocked from touching us | |
677 | */ | |
678 | ||
f0fba2ad | 679 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 680 | |
9949788b | 681 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 682 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 683 | |
87506549 | 684 | if (card->resume_pre) |
70b2ac12 | 685 | card->resume_pre(card); |
db2a4165 | 686 | |
f0fba2ad LG |
687 | /* resume AC97 DAIs */ |
688 | for (i = 0; i < card->num_rtd; i++) { | |
689 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 690 | |
f0fba2ad | 691 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
692 | continue; |
693 | ||
f0fba2ad LG |
694 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
695 | cpu_dai->driver->resume(cpu_dai); | |
696 | } | |
697 | ||
2eea392d | 698 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
699 | /* If the CODEC was idle over suspend then it will have been |
700 | * left with bias OFF or STANDBY and suspended so we must now | |
701 | * resume. Otherwise the suspend was suppressed. | |
702 | */ | |
703 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 704 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
705 | case SND_SOC_BIAS_STANDBY: |
706 | case SND_SOC_BIAS_OFF: | |
707 | codec->driver->resume(codec); | |
708 | codec->suspended = 0; | |
709 | break; | |
710 | default: | |
711 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
712 | break; | |
713 | } | |
1547aba9 MB |
714 | } |
715 | } | |
db2a4165 | 716 | |
f0fba2ad | 717 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 718 | |
f0fba2ad | 719 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
720 | continue; |
721 | ||
7bd3a6f3 | 722 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 723 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 724 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 725 | |
7bd3a6f3 | 726 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 727 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 728 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
729 | } |
730 | ||
3ff3f64b | 731 | /* unmute any active DACs */ |
f0fba2ad LG |
732 | for (i = 0; i < card->num_rtd; i++) { |
733 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
734 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 735 | |
f0fba2ad | 736 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
737 | continue; |
738 | ||
f0fba2ad LG |
739 | if (drv->ops->digital_mute && dai->playback_active) |
740 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
741 | } |
742 | ||
f0fba2ad LG |
743 | for (i = 0; i < card->num_rtd; i++) { |
744 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
745 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 746 | |
f0fba2ad | 747 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
748 | continue; |
749 | ||
f0fba2ad LG |
750 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
751 | cpu_dai->driver->resume(cpu_dai); | |
752 | if (platform->driver->resume && platform->suspended) { | |
753 | platform->driver->resume(cpu_dai); | |
754 | platform->suspended = 0; | |
755 | } | |
db2a4165 FM |
756 | } |
757 | ||
87506549 | 758 | if (card->resume_post) |
70b2ac12 | 759 | card->resume_post(card); |
db2a4165 | 760 | |
f0fba2ad | 761 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
762 | |
763 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 764 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
e2d32ff6 MB |
765 | |
766 | /* Recheck all analogue paths too */ | |
767 | dapm_mark_io_dirty(&card->dapm); | |
768 | snd_soc_dapm_sync(&card->dapm); | |
6ed25978 AG |
769 | } |
770 | ||
771 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 772 | int snd_soc_resume(struct device *dev) |
6ed25978 | 773 | { |
6f8ab4ac | 774 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 775 | int i, ac97_control = 0; |
b9dd94a8 | 776 | |
5ff1ddf2 EM |
777 | /* If the initialization of this soc device failed, there is no codec |
778 | * associated with it. Just bail out in this case. | |
779 | */ | |
780 | if (list_empty(&card->codec_dev_list)) | |
781 | return 0; | |
782 | ||
64ab9baa MB |
783 | /* AC97 devices might have other drivers hanging off them so |
784 | * need to resume immediately. Other drivers don't have that | |
785 | * problem and may take a substantial amount of time to resume | |
786 | * due to I/O costs and anti-pop so handle them out of line. | |
787 | */ | |
f0fba2ad LG |
788 | for (i = 0; i < card->num_rtd; i++) { |
789 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
790 | ac97_control |= cpu_dai->driver->ac97_control; |
791 | } | |
792 | if (ac97_control) { | |
793 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
794 | soc_resume_deferred(&card->deferred_resume_work); | |
795 | } else { | |
796 | dev_dbg(dev, "Scheduling resume work\n"); | |
797 | if (!schedule_work(&card->deferred_resume_work)) | |
798 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 799 | } |
6ed25978 | 800 | |
db2a4165 FM |
801 | return 0; |
802 | } | |
6f8ab4ac | 803 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 804 | #else |
6f8ab4ac MB |
805 | #define snd_soc_suspend NULL |
806 | #define snd_soc_resume NULL | |
db2a4165 FM |
807 | #endif |
808 | ||
85e7652d | 809 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
810 | }; |
811 | ||
f0fba2ad | 812 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 813 | { |
f0fba2ad LG |
814 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
815 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 816 | struct snd_soc_codec *codec; |
435c5e25 | 817 | struct snd_soc_platform *platform; |
f0fba2ad | 818 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 819 | const char *platform_name; |
435c5e25 | 820 | |
f0fba2ad | 821 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 822 | |
b19e6e7b | 823 | /* Find CPU DAI from registered DAIs*/ |
f0fba2ad | 824 | list_for_each_entry(cpu_dai, &dai_list, list) { |
bc92657a SW |
825 | if (dai_link->cpu_of_node && |
826 | (cpu_dai->dev->of_node != dai_link->cpu_of_node)) | |
827 | continue; | |
828 | if (dai_link->cpu_name && | |
829 | strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name)) | |
830 | continue; | |
831 | if (dai_link->cpu_dai_name && | |
832 | strcmp(cpu_dai->name, dai_link->cpu_dai_name)) | |
833 | continue; | |
2610ab77 SW |
834 | |
835 | rtd->cpu_dai = cpu_dai; | |
435c5e25 | 836 | } |
6308419a | 837 | |
b19e6e7b | 838 | if (!rtd->cpu_dai) { |
fb099cb7 | 839 | dev_err(card->dev, "CPU DAI %s not registered\n", |
b19e6e7b MB |
840 | dai_link->cpu_dai_name); |
841 | return -EPROBE_DEFER; | |
f0fba2ad LG |
842 | } |
843 | ||
b19e6e7b | 844 | /* Find CODEC from registered CODECs */ |
f0fba2ad | 845 | list_for_each_entry(codec, &codec_list, list) { |
5a504963 SW |
846 | if (dai_link->codec_of_node) { |
847 | if (codec->dev->of_node != dai_link->codec_of_node) | |
848 | continue; | |
849 | } else { | |
850 | if (strcmp(codec->name, dai_link->codec_name)) | |
851 | continue; | |
852 | } | |
2610ab77 SW |
853 | |
854 | rtd->codec = codec; | |
855 | ||
856 | /* | |
857 | * CODEC found, so find CODEC DAI from registered DAIs from | |
858 | * this CODEC | |
859 | */ | |
860 | list_for_each_entry(codec_dai, &dai_list, list) { | |
861 | if (codec->dev == codec_dai->dev && | |
862 | !strcmp(codec_dai->name, | |
863 | dai_link->codec_dai_name)) { | |
f0fba2ad | 864 | |
2610ab77 | 865 | rtd->codec_dai = codec_dai; |
2610ab77 | 866 | } |
435c5e25 | 867 | } |
2610ab77 | 868 | |
b19e6e7b | 869 | if (!rtd->codec_dai) { |
fb099cb7 | 870 | dev_err(card->dev, "CODEC DAI %s not registered\n", |
b19e6e7b MB |
871 | dai_link->codec_dai_name); |
872 | return -EPROBE_DEFER; | |
873 | } | |
f0fba2ad | 874 | } |
6b05eda6 | 875 | |
b19e6e7b | 876 | if (!rtd->codec) { |
fb099cb7 | 877 | dev_err(card->dev, "CODEC %s not registered\n", |
b19e6e7b MB |
878 | dai_link->codec_name); |
879 | return -EPROBE_DEFER; | |
880 | } | |
848dd8be MB |
881 | |
882 | /* if there's no platform we match on the empty platform */ | |
883 | platform_name = dai_link->platform_name; | |
5a504963 | 884 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
885 | platform_name = "snd-soc-dummy"; |
886 | ||
b19e6e7b | 887 | /* find one from the set of registered platforms */ |
f0fba2ad | 888 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
889 | if (dai_link->platform_of_node) { |
890 | if (platform->dev->of_node != | |
891 | dai_link->platform_of_node) | |
892 | continue; | |
893 | } else { | |
894 | if (strcmp(platform->name, platform_name)) | |
895 | continue; | |
896 | } | |
2610ab77 SW |
897 | |
898 | rtd->platform = platform; | |
02a06d30 | 899 | } |
b19e6e7b | 900 | if (!rtd->platform) { |
fb099cb7 | 901 | dev_err(card->dev, "platform %s not registered\n", |
f0fba2ad | 902 | dai_link->platform_name); |
b19e6e7b | 903 | return -EPROBE_DEFER; |
f0fba2ad | 904 | } |
b19e6e7b MB |
905 | |
906 | card->num_rtd++; | |
907 | ||
908 | return 0; | |
f0fba2ad LG |
909 | } |
910 | ||
d12cd198 SW |
911 | static int soc_remove_platform(struct snd_soc_platform *platform) |
912 | { | |
913 | int ret; | |
914 | ||
915 | if (platform->driver->remove) { | |
916 | ret = platform->driver->remove(platform); | |
917 | if (ret < 0) | |
918 | pr_err("asoc: failed to remove %s: %d\n", | |
919 | platform->name, ret); | |
920 | } | |
921 | ||
922 | /* Make sure all DAPM widgets are freed */ | |
923 | snd_soc_dapm_free(&platform->dapm); | |
924 | ||
925 | soc_cleanup_platform_debugfs(platform); | |
926 | platform->probed = 0; | |
927 | list_del(&platform->card_list); | |
928 | module_put(platform->dev->driver->owner); | |
929 | ||
930 | return 0; | |
931 | } | |
932 | ||
589c3563 JN |
933 | static void soc_remove_codec(struct snd_soc_codec *codec) |
934 | { | |
935 | int err; | |
936 | ||
937 | if (codec->driver->remove) { | |
938 | err = codec->driver->remove(codec); | |
939 | if (err < 0) | |
940 | dev_err(codec->dev, | |
941 | "asoc: failed to remove %s: %d\n", | |
942 | codec->name, err); | |
943 | } | |
944 | ||
945 | /* Make sure all DAPM widgets are freed */ | |
946 | snd_soc_dapm_free(&codec->dapm); | |
947 | ||
948 | soc_cleanup_codec_debugfs(codec); | |
949 | codec->probed = 0; | |
950 | list_del(&codec->card_list); | |
951 | module_put(codec->dev->driver->owner); | |
952 | } | |
953 | ||
62ae68fa | 954 | static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
955 | { |
956 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
f0fba2ad LG |
957 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; |
958 | int err; | |
959 | ||
960 | /* unregister the rtd device */ | |
961 | if (rtd->dev_registered) { | |
36ae1a96 MB |
962 | device_remove_file(rtd->dev, &dev_attr_pmdown_time); |
963 | device_remove_file(rtd->dev, &dev_attr_codec_reg); | |
964 | device_unregister(rtd->dev); | |
f0fba2ad LG |
965 | rtd->dev_registered = 0; |
966 | } | |
967 | ||
968 | /* remove the CODEC DAI */ | |
0168bf0d LG |
969 | if (codec_dai && codec_dai->probed && |
970 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
971 | if (codec_dai->driver->remove) { |
972 | err = codec_dai->driver->remove(codec_dai); | |
973 | if (err < 0) | |
0837fc62 FE |
974 | pr_err("asoc: failed to remove %s: %d\n", |
975 | codec_dai->name, err); | |
6b05eda6 | 976 | } |
f0fba2ad LG |
977 | codec_dai->probed = 0; |
978 | list_del(&codec_dai->card_list); | |
979 | } | |
6b05eda6 | 980 | |
f0fba2ad | 981 | /* remove the cpu_dai */ |
0168bf0d LG |
982 | if (cpu_dai && cpu_dai->probed && |
983 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
984 | if (cpu_dai->driver->remove) { |
985 | err = cpu_dai->driver->remove(cpu_dai); | |
986 | if (err < 0) | |
0837fc62 FE |
987 | pr_err("asoc: failed to remove %s: %d\n", |
988 | cpu_dai->name, err); | |
db2a4165 | 989 | } |
f0fba2ad LG |
990 | cpu_dai->probed = 0; |
991 | list_del(&cpu_dai->card_list); | |
a9db7dbe | 992 | |
18d75644 SW |
993 | if (!cpu_dai->codec) { |
994 | snd_soc_dapm_free(&cpu_dai->dapm); | |
a9db7dbe | 995 | module_put(cpu_dai->dev->driver->owner); |
18d75644 | 996 | } |
db2a4165 | 997 | } |
f0fba2ad | 998 | } |
db2a4165 | 999 | |
62ae68fa SW |
1000 | static void soc_remove_link_components(struct snd_soc_card *card, int num, |
1001 | int order) | |
1002 | { | |
1003 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1004 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1005 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1006 | struct snd_soc_platform *platform = rtd->platform; | |
1007 | struct snd_soc_codec *codec; | |
1008 | ||
1009 | /* remove the platform */ | |
1010 | if (platform && platform->probed && | |
1011 | platform->driver->remove_order == order) { | |
1012 | soc_remove_platform(platform); | |
1013 | } | |
1014 | ||
1015 | /* remove the CODEC-side CODEC */ | |
1016 | if (codec_dai) { | |
1017 | codec = codec_dai->codec; | |
1018 | if (codec && codec->probed && | |
1019 | codec->driver->remove_order == order) | |
1020 | soc_remove_codec(codec); | |
1021 | } | |
1022 | ||
1023 | /* remove any CPU-side CODEC */ | |
1024 | if (cpu_dai) { | |
1025 | codec = cpu_dai->codec; | |
1026 | if (codec && codec->probed && | |
1027 | codec->driver->remove_order == order) | |
1028 | soc_remove_codec(codec); | |
1029 | } | |
1030 | } | |
1031 | ||
0671fd8e KM |
1032 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1033 | { | |
0168bf0d | 1034 | int dai, order; |
0671fd8e | 1035 | |
0168bf0d LG |
1036 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1037 | order++) { | |
1038 | for (dai = 0; dai < card->num_rtd; dai++) | |
62ae68fa SW |
1039 | soc_remove_link_dais(card, dai, order); |
1040 | } | |
1041 | ||
1042 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1043 | order++) { | |
1044 | for (dai = 0; dai < card->num_rtd; dai++) | |
1045 | soc_remove_link_components(card, dai, order); | |
0168bf0d | 1046 | } |
62ae68fa | 1047 | |
0671fd8e KM |
1048 | card->num_rtd = 0; |
1049 | } | |
1050 | ||
ead9b919 JN |
1051 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1052 | struct snd_soc_codec *codec) | |
1053 | { | |
1054 | int i; | |
1055 | ||
ff819b83 | 1056 | if (card->codec_conf == NULL) |
ead9b919 JN |
1057 | return; |
1058 | ||
ff819b83 DP |
1059 | for (i = 0; i < card->num_configs; i++) { |
1060 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1061 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1062 | codec->name_prefix = map->name_prefix; | |
1063 | break; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
589c3563 JN |
1068 | static int soc_probe_codec(struct snd_soc_card *card, |
1069 | struct snd_soc_codec *codec) | |
1070 | { | |
1071 | int ret = 0; | |
89b95ac0 | 1072 | const struct snd_soc_codec_driver *driver = codec->driver; |
888df395 | 1073 | struct snd_soc_dai *dai; |
589c3563 JN |
1074 | |
1075 | codec->card = card; | |
1076 | codec->dapm.card = card; | |
1077 | soc_set_name_prefix(card, codec); | |
1078 | ||
70d29331 JN |
1079 | if (!try_module_get(codec->dev->driver->owner)) |
1080 | return -ENODEV; | |
1081 | ||
d5d1e0be LPC |
1082 | soc_init_codec_debugfs(codec); |
1083 | ||
77530150 LPC |
1084 | if (driver->dapm_widgets) |
1085 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1086 | driver->num_dapm_widgets); | |
1087 | ||
888df395 MB |
1088 | /* Create DAPM widgets for each DAI stream */ |
1089 | list_for_each_entry(dai, &dai_list, list) { | |
1090 | if (dai->dev != codec->dev) | |
1091 | continue; | |
1092 | ||
1093 | snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); | |
1094 | } | |
1095 | ||
33c5f969 MB |
1096 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
1097 | ||
89b95ac0 MB |
1098 | if (driver->probe) { |
1099 | ret = driver->probe(codec); | |
589c3563 JN |
1100 | if (ret < 0) { |
1101 | dev_err(codec->dev, | |
1102 | "asoc: failed to probe CODEC %s: %d\n", | |
1103 | codec->name, ret); | |
70d29331 | 1104 | goto err_probe; |
589c3563 JN |
1105 | } |
1106 | } | |
1107 | ||
38cbf959 | 1108 | /* If the driver didn't set I/O up try regmap */ |
98d3088e | 1109 | if (!codec->write && dev_get_regmap(codec->dev, NULL)) |
38cbf959 MB |
1110 | snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP); |
1111 | ||
b7af1daf | 1112 | if (driver->controls) |
022658be | 1113 | snd_soc_add_codec_controls(codec, driver->controls, |
b7af1daf | 1114 | driver->num_controls); |
89b95ac0 MB |
1115 | if (driver->dapm_routes) |
1116 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1117 | driver->num_dapm_routes); | |
1118 | ||
589c3563 JN |
1119 | /* mark codec as probed and add to card codec list */ |
1120 | codec->probed = 1; | |
1121 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1122 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1123 | |
70d29331 JN |
1124 | return 0; |
1125 | ||
1126 | err_probe: | |
d5d1e0be | 1127 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1128 | module_put(codec->dev->driver->owner); |
1129 | ||
589c3563 JN |
1130 | return ret; |
1131 | } | |
1132 | ||
956245e9 LG |
1133 | static int soc_probe_platform(struct snd_soc_card *card, |
1134 | struct snd_soc_platform *platform) | |
1135 | { | |
1136 | int ret = 0; | |
1137 | const struct snd_soc_platform_driver *driver = platform->driver; | |
be09ad90 | 1138 | struct snd_soc_dai *dai; |
956245e9 LG |
1139 | |
1140 | platform->card = card; | |
b7950641 | 1141 | platform->dapm.card = card; |
956245e9 LG |
1142 | |
1143 | if (!try_module_get(platform->dev->driver->owner)) | |
1144 | return -ENODEV; | |
1145 | ||
731f1ab2 SG |
1146 | soc_init_platform_debugfs(platform); |
1147 | ||
cb2cf612 LG |
1148 | if (driver->dapm_widgets) |
1149 | snd_soc_dapm_new_controls(&platform->dapm, | |
1150 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1151 | ||
be09ad90 LG |
1152 | /* Create DAPM widgets for each DAI stream */ |
1153 | list_for_each_entry(dai, &dai_list, list) { | |
1154 | if (dai->dev != platform->dev) | |
1155 | continue; | |
1156 | ||
1157 | snd_soc_dapm_new_dai_widgets(&platform->dapm, dai); | |
1158 | } | |
1159 | ||
3fec6b6d SW |
1160 | platform->dapm.idle_bias_off = 1; |
1161 | ||
956245e9 LG |
1162 | if (driver->probe) { |
1163 | ret = driver->probe(platform); | |
1164 | if (ret < 0) { | |
1165 | dev_err(platform->dev, | |
1166 | "asoc: failed to probe platform %s: %d\n", | |
1167 | platform->name, ret); | |
1168 | goto err_probe; | |
1169 | } | |
1170 | } | |
1171 | ||
cb2cf612 LG |
1172 | if (driver->controls) |
1173 | snd_soc_add_platform_controls(platform, driver->controls, | |
1174 | driver->num_controls); | |
1175 | if (driver->dapm_routes) | |
1176 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1177 | driver->num_dapm_routes); | |
1178 | ||
956245e9 LG |
1179 | /* mark platform as probed and add to card platform list */ |
1180 | platform->probed = 1; | |
1181 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1182 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1183 | |
1184 | return 0; | |
1185 | ||
1186 | err_probe: | |
02db1103 | 1187 | soc_cleanup_platform_debugfs(platform); |
956245e9 LG |
1188 | module_put(platform->dev->driver->owner); |
1189 | ||
1190 | return ret; | |
1191 | } | |
1192 | ||
36ae1a96 MB |
1193 | static void rtd_release(struct device *dev) |
1194 | { | |
1195 | kfree(dev); | |
1196 | } | |
f0fba2ad | 1197 | |
589c3563 JN |
1198 | static int soc_post_component_init(struct snd_soc_card *card, |
1199 | struct snd_soc_codec *codec, | |
1200 | int num, int dailess) | |
1201 | { | |
1202 | struct snd_soc_dai_link *dai_link = NULL; | |
1203 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1204 | struct snd_soc_pcm_runtime *rtd; | |
1205 | const char *temp, *name; | |
1206 | int ret = 0; | |
1207 | ||
1208 | if (!dailess) { | |
1209 | dai_link = &card->dai_link[num]; | |
1210 | rtd = &card->rtd[num]; | |
1211 | name = dai_link->name; | |
1212 | } else { | |
1213 | aux_dev = &card->aux_dev[num]; | |
1214 | rtd = &card->rtd_aux[num]; | |
1215 | name = aux_dev->name; | |
1216 | } | |
0962bb21 | 1217 | rtd->card = card; |
589c3563 | 1218 | |
4b1cfcb4 MB |
1219 | /* Make sure all DAPM widgets are instantiated */ |
1220 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1221 | ||
589c3563 JN |
1222 | /* machine controls, routes and widgets are not prefixed */ |
1223 | temp = codec->name_prefix; | |
1224 | codec->name_prefix = NULL; | |
1225 | ||
1226 | /* do machine specific initialization */ | |
1227 | if (!dailess && dai_link->init) | |
1228 | ret = dai_link->init(rtd); | |
1229 | else if (dailess && aux_dev->init) | |
1230 | ret = aux_dev->init(&codec->dapm); | |
1231 | if (ret < 0) { | |
1232 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1233 | return ret; | |
1234 | } | |
1235 | codec->name_prefix = temp; | |
1236 | ||
589c3563 JN |
1237 | /* register the rtd device */ |
1238 | rtd->codec = codec; | |
36ae1a96 MB |
1239 | |
1240 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
1241 | if (!rtd->dev) | |
1242 | return -ENOMEM; | |
1243 | device_initialize(rtd->dev); | |
1244 | rtd->dev->parent = card->dev; | |
1245 | rtd->dev->release = rtd_release; | |
1246 | rtd->dev->init_name = name; | |
1247 | dev_set_drvdata(rtd->dev, rtd); | |
b8c0dab9 | 1248 | mutex_init(&rtd->pcm_mutex); |
01d7584c LG |
1249 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients); |
1250 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients); | |
1251 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients); | |
1252 | INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); | |
36ae1a96 | 1253 | ret = device_add(rtd->dev); |
589c3563 JN |
1254 | if (ret < 0) { |
1255 | dev_err(card->dev, | |
1256 | "asoc: failed to register runtime device: %d\n", ret); | |
1257 | return ret; | |
1258 | } | |
1259 | rtd->dev_registered = 1; | |
1260 | ||
1261 | /* add DAPM sysfs entries for this codec */ | |
36ae1a96 | 1262 | ret = snd_soc_dapm_sys_add(rtd->dev); |
589c3563 JN |
1263 | if (ret < 0) |
1264 | dev_err(codec->dev, | |
1265 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1266 | ret); | |
1267 | ||
1268 | /* add codec sysfs entries */ | |
36ae1a96 | 1269 | ret = device_create_file(rtd->dev, &dev_attr_codec_reg); |
589c3563 JN |
1270 | if (ret < 0) |
1271 | dev_err(codec->dev, | |
1272 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1273 | ||
f86dcef8 LG |
1274 | #ifdef CONFIG_DEBUG_FS |
1275 | /* add DPCM sysfs entries */ | |
cd0f8911 | 1276 | if (!dailess && !dai_link->dynamic) |
f86dcef8 LG |
1277 | goto out; |
1278 | ||
1279 | ret = soc_dpcm_debugfs_add(rtd); | |
1280 | if (ret < 0) | |
1281 | dev_err(rtd->dev, "asoc: failed to add dpcm sysfs entries: %d\n", ret); | |
1282 | ||
1283 | out: | |
1284 | #endif | |
589c3563 JN |
1285 | return 0; |
1286 | } | |
1287 | ||
62ae68fa SW |
1288 | static int soc_probe_link_components(struct snd_soc_card *card, int num, |
1289 | int order) | |
1290 | { | |
1291 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1292 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1293 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1294 | struct snd_soc_platform *platform = rtd->platform; | |
1295 | int ret; | |
1296 | ||
1297 | /* probe the CPU-side component, if it is a CODEC */ | |
1298 | if (cpu_dai->codec && | |
1299 | !cpu_dai->codec->probed && | |
1300 | cpu_dai->codec->driver->probe_order == order) { | |
1301 | ret = soc_probe_codec(card, cpu_dai->codec); | |
1302 | if (ret < 0) | |
1303 | return ret; | |
1304 | } | |
1305 | ||
1306 | /* probe the CODEC-side component */ | |
1307 | if (!codec_dai->codec->probed && | |
1308 | codec_dai->codec->driver->probe_order == order) { | |
1309 | ret = soc_probe_codec(card, codec_dai->codec); | |
1310 | if (ret < 0) | |
1311 | return ret; | |
1312 | } | |
1313 | ||
1314 | /* probe the platform */ | |
1315 | if (!platform->probed && | |
1316 | platform->driver->probe_order == order) { | |
1317 | ret = soc_probe_platform(card, platform); | |
1318 | if (ret < 0) | |
1319 | return ret; | |
1320 | } | |
1321 | ||
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) | |
f0fba2ad LG |
1326 | { |
1327 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1328 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1329 | struct snd_soc_codec *codec = rtd->codec; | |
1330 | struct snd_soc_platform *platform = rtd->platform; | |
c74184ed MB |
1331 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
1332 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1333 | struct snd_soc_dapm_widget *play_w, *capture_w; | |
f0fba2ad LG |
1334 | int ret; |
1335 | ||
0168bf0d LG |
1336 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1337 | card->name, num, order); | |
f0fba2ad LG |
1338 | |
1339 | /* config components */ | |
f0fba2ad | 1340 | cpu_dai->platform = platform; |
f0fba2ad LG |
1341 | codec_dai->card = card; |
1342 | cpu_dai->card = card; | |
1343 | ||
1344 | /* set default power off timeout */ | |
1345 | rtd->pmdown_time = pmdown_time; | |
1346 | ||
1347 | /* probe the cpu_dai */ | |
0168bf0d LG |
1348 | if (!cpu_dai->probed && |
1349 | cpu_dai->driver->probe_order == order) { | |
a9db7dbe SW |
1350 | if (!cpu_dai->codec) { |
1351 | cpu_dai->dapm.card = card; | |
1352 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1353 | return -ENODEV; | |
61b61e3c | 1354 | |
18d75644 | 1355 | list_add(&cpu_dai->dapm.list, &card->dapm_list); |
a9db7dbe SW |
1356 | snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai); |
1357 | } | |
be09ad90 | 1358 | |
f0fba2ad LG |
1359 | if (cpu_dai->driver->probe) { |
1360 | ret = cpu_dai->driver->probe(cpu_dai); | |
1361 | if (ret < 0) { | |
0837fc62 FE |
1362 | pr_err("asoc: failed to probe CPU DAI %s: %d\n", |
1363 | cpu_dai->name, ret); | |
61b61e3c | 1364 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1365 | return ret; |
1366 | } | |
1367 | } | |
1368 | cpu_dai->probed = 1; | |
1c8371d6 | 1369 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1370 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1371 | } |
1372 | ||
f0fba2ad | 1373 | /* probe the CODEC DAI */ |
0168bf0d | 1374 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1375 | if (codec_dai->driver->probe) { |
1376 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1377 | if (ret < 0) { |
0837fc62 FE |
1378 | pr_err("asoc: failed to probe CODEC DAI %s: %d\n", |
1379 | codec_dai->name, ret); | |
f0fba2ad | 1380 | return ret; |
fe3e78e0 MB |
1381 | } |
1382 | } | |
f0fba2ad | 1383 | |
1c8371d6 | 1384 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1385 | codec_dai->probed = 1; |
1386 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1387 | } |
1388 | ||
0168bf0d LG |
1389 | /* complete DAI probe during last probe */ |
1390 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1391 | return 0; | |
1392 | ||
589c3563 JN |
1393 | ret = soc_post_component_init(card, codec, num, 0); |
1394 | if (ret) | |
f0fba2ad | 1395 | return ret; |
fe3e78e0 | 1396 | |
36ae1a96 | 1397 | ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); |
f0fba2ad | 1398 | if (ret < 0) |
0837fc62 | 1399 | pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret); |
f0fba2ad | 1400 | |
1245b700 NK |
1401 | if (cpu_dai->driver->compress_dai) { |
1402 | /*create compress_device"*/ | |
1403 | ret = soc_new_compress(rtd, num); | |
c74184ed | 1404 | if (ret < 0) { |
1245b700 NK |
1405 | pr_err("asoc: can't create compress %s\n", |
1406 | dai_link->stream_name); | |
c74184ed MB |
1407 | return ret; |
1408 | } | |
1409 | } else { | |
1245b700 NK |
1410 | |
1411 | if (!dai_link->params) { | |
1412 | /* create the pcm */ | |
1413 | ret = soc_new_pcm(rtd, num); | |
1414 | if (ret < 0) { | |
1415 | pr_err("asoc: can't create pcm %s :%d\n", | |
1416 | dai_link->stream_name, ret); | |
c74184ed MB |
1417 | return ret; |
1418 | } | |
1245b700 NK |
1419 | } else { |
1420 | /* link the DAI widgets */ | |
1421 | play_w = codec_dai->playback_widget; | |
1422 | capture_w = cpu_dai->capture_widget; | |
1423 | if (play_w && capture_w) { | |
1424 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
1425 | capture_w, play_w); | |
1426 | if (ret != 0) { | |
1427 | dev_err(card->dev, "Can't link %s to %s: %d\n", | |
1428 | play_w->name, capture_w->name, ret); | |
1429 | return ret; | |
1430 | } | |
1431 | } | |
c74184ed | 1432 | |
1245b700 NK |
1433 | play_w = cpu_dai->playback_widget; |
1434 | capture_w = codec_dai->capture_widget; | |
1435 | if (play_w && capture_w) { | |
1436 | ret = snd_soc_dapm_new_pcm(card, dai_link->params, | |
c74184ed | 1437 | capture_w, play_w); |
1245b700 NK |
1438 | if (ret != 0) { |
1439 | dev_err(card->dev, "Can't link %s to %s: %d\n", | |
1440 | play_w->name, capture_w->name, ret); | |
1441 | return ret; | |
1442 | } | |
c74184ed MB |
1443 | } |
1444 | } | |
f0fba2ad LG |
1445 | } |
1446 | ||
1447 | /* add platform data for AC97 devices */ | |
1448 | if (rtd->codec_dai->driver->ac97_control) | |
1449 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1450 | ||
1451 | return 0; | |
1452 | } | |
1453 | ||
fe3e78e0 | 1454 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1455 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1456 | { | |
1457 | int ret; | |
1458 | ||
fe3e78e0 MB |
1459 | /* Only instantiate AC97 if not already done by the adaptor |
1460 | * for the generic AC97 subsystem. | |
1461 | */ | |
f0fba2ad | 1462 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1463 | /* |
1464 | * It is possible that the AC97 device is already registered to | |
1465 | * the device subsystem. This happens when the device is created | |
1466 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1467 | * is the generic AC97 glue but others migh emerge. | |
1468 | * | |
1469 | * In those cases we don't try to register the device again. | |
1470 | */ | |
1471 | if (!rtd->codec->ac97_created) | |
1472 | return 0; | |
f0fba2ad LG |
1473 | |
1474 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 | 1475 | if (ret < 0) { |
0837fc62 | 1476 | pr_err("asoc: AC97 device register failed:%d\n", ret); |
f0fba2ad | 1477 | return ret; |
fe3e78e0 | 1478 | } |
f0fba2ad LG |
1479 | |
1480 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1481 | } |
f0fba2ad LG |
1482 | return 0; |
1483 | } | |
1484 | ||
1485 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1486 | { | |
1487 | if (codec->ac97_registered) { | |
1488 | soc_ac97_dev_unregister(codec); | |
1489 | codec->ac97_registered = 0; | |
1490 | } | |
1491 | } | |
fe3e78e0 MB |
1492 | #endif |
1493 | ||
b19e6e7b MB |
1494 | static int soc_check_aux_dev(struct snd_soc_card *card, int num) |
1495 | { | |
1496 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
1497 | struct snd_soc_codec *codec; | |
1498 | ||
1499 | /* find CODEC from registered CODECs*/ | |
1500 | list_for_each_entry(codec, &codec_list, list) { | |
1501 | if (!strcmp(codec->name, aux_dev->codec_name)) | |
1502 | return 0; | |
1503 | } | |
1504 | ||
fb099cb7 MB |
1505 | dev_err(card->dev, "%s not registered\n", aux_dev->codec_name); |
1506 | ||
b19e6e7b MB |
1507 | return -EPROBE_DEFER; |
1508 | } | |
1509 | ||
2eea392d JN |
1510 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1511 | { | |
1512 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1513 | struct snd_soc_codec *codec; |
676ad98a | 1514 | int ret = -ENODEV; |
2eea392d JN |
1515 | |
1516 | /* find CODEC from registered CODECs*/ | |
1517 | list_for_each_entry(codec, &codec_list, list) { | |
1518 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1519 | if (codec->probed) { | |
1520 | dev_err(codec->dev, | |
1521 | "asoc: codec already probed"); | |
1522 | ret = -EBUSY; | |
1523 | goto out; | |
1524 | } | |
676ad98a | 1525 | goto found; |
2eea392d JN |
1526 | } |
1527 | } | |
676ad98a JN |
1528 | /* codec not found */ |
1529 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
b19e6e7b | 1530 | return -EPROBE_DEFER; |
2eea392d | 1531 | |
676ad98a | 1532 | found: |
589c3563 | 1533 | ret = soc_probe_codec(card, codec); |
2eea392d | 1534 | if (ret < 0) |
589c3563 | 1535 | return ret; |
2eea392d | 1536 | |
589c3563 | 1537 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1538 | |
1539 | out: | |
1540 | return ret; | |
1541 | } | |
1542 | ||
1543 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1544 | { | |
1545 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1546 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1547 | |
1548 | /* unregister the rtd device */ | |
1549 | if (rtd->dev_registered) { | |
36ae1a96 MB |
1550 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
1551 | device_del(rtd->dev); | |
2eea392d JN |
1552 | rtd->dev_registered = 0; |
1553 | } | |
1554 | ||
589c3563 JN |
1555 | if (codec && codec->probed) |
1556 | soc_remove_codec(codec); | |
2eea392d JN |
1557 | } |
1558 | ||
fdf0f54d DP |
1559 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1560 | enum snd_soc_compress_type compress_type) | |
1561 | { | |
1562 | int ret; | |
1563 | ||
1564 | if (codec->cache_init) | |
1565 | return 0; | |
1566 | ||
1567 | /* override the compress_type if necessary */ | |
1568 | if (compress_type && codec->compress_type != compress_type) | |
1569 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1570 | ret = snd_soc_cache_init(codec); |
1571 | if (ret < 0) { | |
1572 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1573 | ret); | |
1574 | return ret; | |
1575 | } | |
1576 | codec->cache_init = 1; | |
1577 | return 0; | |
1578 | } | |
1579 | ||
b19e6e7b | 1580 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1581 | { |
fdf0f54d DP |
1582 | struct snd_soc_codec *codec; |
1583 | struct snd_soc_codec_conf *codec_conf; | |
1584 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1585 | struct snd_soc_dai_link *dai_link; |
f04209a7 | 1586 | int ret, i, order, dai_fmt; |
fe3e78e0 | 1587 | |
01b9d99a | 1588 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1589 | |
f0fba2ad | 1590 | /* bind DAIs */ |
b19e6e7b MB |
1591 | for (i = 0; i < card->num_links; i++) { |
1592 | ret = soc_bind_dai_link(card, i); | |
1593 | if (ret != 0) | |
1594 | goto base_error; | |
1595 | } | |
fe3e78e0 | 1596 | |
b19e6e7b MB |
1597 | /* check aux_devs too */ |
1598 | for (i = 0; i < card->num_aux_devs; i++) { | |
1599 | ret = soc_check_aux_dev(card, i); | |
1600 | if (ret != 0) | |
1601 | goto base_error; | |
f0fba2ad | 1602 | } |
435c5e25 | 1603 | |
fdf0f54d DP |
1604 | /* initialize the register cache for each available codec */ |
1605 | list_for_each_entry(codec, &codec_list, list) { | |
1606 | if (codec->cache_init) | |
1607 | continue; | |
861f2faf DP |
1608 | /* by default we don't override the compress_type */ |
1609 | compress_type = 0; | |
fdf0f54d DP |
1610 | /* check to see if we need to override the compress_type */ |
1611 | for (i = 0; i < card->num_configs; ++i) { | |
1612 | codec_conf = &card->codec_conf[i]; | |
1613 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1614 | compress_type = codec_conf->compress_type; | |
1615 | if (compress_type && compress_type | |
1616 | != codec->compress_type) | |
1617 | break; | |
1618 | } | |
1619 | } | |
fdf0f54d | 1620 | ret = snd_soc_init_codec_cache(codec, compress_type); |
b19e6e7b MB |
1621 | if (ret < 0) |
1622 | goto base_error; | |
fdf0f54d DP |
1623 | } |
1624 | ||
f0fba2ad LG |
1625 | /* card bind complete so register a sound card */ |
1626 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1627 | card->owner, 0, &card->snd_card); | |
1628 | if (ret < 0) { | |
0837fc62 FE |
1629 | pr_err("asoc: can't create sound card for card %s: %d\n", |
1630 | card->name, ret); | |
b19e6e7b | 1631 | goto base_error; |
f0fba2ad LG |
1632 | } |
1633 | card->snd_card->dev = card->dev; | |
1634 | ||
e37a4970 MB |
1635 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1636 | card->dapm.dev = card->dev; | |
1637 | card->dapm.card = card; | |
1638 | list_add(&card->dapm.list, &card->dapm_list); | |
1639 | ||
d5d1e0be LPC |
1640 | #ifdef CONFIG_DEBUG_FS |
1641 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1642 | #endif | |
1643 | ||
88ee1c61 | 1644 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1645 | /* deferred resume work */ |
1646 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1647 | #endif | |
db2a4165 | 1648 | |
9a841ebb MB |
1649 | if (card->dapm_widgets) |
1650 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1651 | card->num_dapm_widgets); | |
1652 | ||
f0fba2ad LG |
1653 | /* initialise the sound card only once */ |
1654 | if (card->probe) { | |
e7361ec4 | 1655 | ret = card->probe(card); |
f0fba2ad LG |
1656 | if (ret < 0) |
1657 | goto card_probe_error; | |
1658 | } | |
fe3e78e0 | 1659 | |
62ae68fa | 1660 | /* probe all components used by DAI links on this card */ |
0168bf0d LG |
1661 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
1662 | order++) { | |
1663 | for (i = 0; i < card->num_links; i++) { | |
62ae68fa | 1664 | ret = soc_probe_link_components(card, i, order); |
0168bf0d LG |
1665 | if (ret < 0) { |
1666 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
62ae68fa SW |
1667 | card->name, ret); |
1668 | goto probe_dai_err; | |
1669 | } | |
1670 | } | |
1671 | } | |
1672 | ||
1673 | /* probe all DAI links on this card */ | |
1674 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1675 | order++) { | |
1676 | for (i = 0; i < card->num_links; i++) { | |
1677 | ret = soc_probe_link_dais(card, i, order); | |
1678 | if (ret < 0) { | |
1679 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
1680 | card->name, ret); | |
0168bf0d LG |
1681 | goto probe_dai_err; |
1682 | } | |
f0fba2ad LG |
1683 | } |
1684 | } | |
db2a4165 | 1685 | |
2eea392d JN |
1686 | for (i = 0; i < card->num_aux_devs; i++) { |
1687 | ret = soc_probe_aux_dev(card, i); | |
1688 | if (ret < 0) { | |
1689 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1690 | card->name, ret); | |
1691 | goto probe_aux_dev_err; | |
1692 | } | |
1693 | } | |
1694 | ||
888df395 MB |
1695 | snd_soc_dapm_link_dai_widgets(card); |
1696 | ||
b7af1daf | 1697 | if (card->controls) |
022658be | 1698 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1699 | |
b8ad29de MB |
1700 | if (card->dapm_routes) |
1701 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1702 | card->num_dapm_routes); | |
1703 | ||
b90d2f90 MB |
1704 | snd_soc_dapm_new_widgets(&card->dapm); |
1705 | ||
75d9ac46 MB |
1706 | for (i = 0; i < card->num_links; i++) { |
1707 | dai_link = &card->dai_link[i]; | |
f04209a7 | 1708 | dai_fmt = dai_link->dai_fmt; |
75d9ac46 | 1709 | |
f04209a7 | 1710 | if (dai_fmt) { |
75d9ac46 | 1711 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, |
f04209a7 | 1712 | dai_fmt); |
5e4ba569 | 1713 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1714 | dev_warn(card->rtd[i].codec_dai->dev, |
1715 | "Failed to set DAI format: %d\n", | |
1716 | ret); | |
f04209a7 MB |
1717 | } |
1718 | ||
1719 | /* If this is a regular CPU link there will be a platform */ | |
fe33d4c5 SW |
1720 | if (dai_fmt && |
1721 | (dai_link->platform_name || dai_link->platform_of_node)) { | |
f04209a7 MB |
1722 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, |
1723 | dai_fmt); | |
1724 | if (ret != 0 && ret != -ENOTSUPP) | |
1725 | dev_warn(card->rtd[i].cpu_dai->dev, | |
1726 | "Failed to set DAI format: %d\n", | |
1727 | ret); | |
1728 | } else if (dai_fmt) { | |
1729 | /* Flip the polarity for the "CPU" end */ | |
1730 | dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK; | |
1731 | switch (dai_link->dai_fmt & | |
1732 | SND_SOC_DAIFMT_MASTER_MASK) { | |
1733 | case SND_SOC_DAIFMT_CBM_CFM: | |
1734 | dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; | |
1735 | break; | |
1736 | case SND_SOC_DAIFMT_CBM_CFS: | |
1737 | dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; | |
1738 | break; | |
1739 | case SND_SOC_DAIFMT_CBS_CFM: | |
1740 | dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; | |
1741 | break; | |
1742 | case SND_SOC_DAIFMT_CBS_CFS: | |
1743 | dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; | |
1744 | break; | |
1745 | } | |
75d9ac46 MB |
1746 | |
1747 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
f04209a7 | 1748 | dai_fmt); |
5e4ba569 | 1749 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1750 | dev_warn(card->rtd[i].cpu_dai->dev, |
1751 | "Failed to set DAI format: %d\n", | |
1752 | ret); | |
1753 | } | |
1754 | } | |
1755 | ||
f0fba2ad | 1756 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1757 | "%s", card->name); |
22de71ba LG |
1758 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1759 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1760 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1761 | "%s", card->driver_name ? card->driver_name : card->name); | |
1762 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1763 | switch (card->snd_card->driver[i]) { | |
1764 | case '_': | |
1765 | case '-': | |
1766 | case '\0': | |
1767 | break; | |
1768 | default: | |
1769 | if (!isalnum(card->snd_card->driver[i])) | |
1770 | card->snd_card->driver[i] = '_'; | |
1771 | break; | |
1772 | } | |
1773 | } | |
f0fba2ad | 1774 | |
28e9ad92 MB |
1775 | if (card->late_probe) { |
1776 | ret = card->late_probe(card); | |
1777 | if (ret < 0) { | |
1778 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1779 | card->name, ret); | |
1780 | goto probe_aux_dev_err; | |
1781 | } | |
1782 | } | |
1783 | ||
2dc00213 MB |
1784 | snd_soc_dapm_new_widgets(&card->dapm); |
1785 | ||
1633281b | 1786 | if (card->fully_routed) |
b05d8dc1 | 1787 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1788 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1789 | ||
f0fba2ad LG |
1790 | ret = snd_card_register(card->snd_card); |
1791 | if (ret < 0) { | |
0837fc62 FE |
1792 | pr_err("asoc: failed to register soundcard for %s: %d\n", |
1793 | card->name, ret); | |
6b3ed785 | 1794 | goto probe_aux_dev_err; |
db2a4165 FM |
1795 | } |
1796 | ||
f0fba2ad LG |
1797 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1798 | /* register any AC97 codecs */ | |
1799 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1800 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1801 | if (ret < 0) { | |
0837fc62 FE |
1802 | pr_err("asoc: failed to register AC97 %s: %d\n", |
1803 | card->name, ret); | |
6b3ed785 | 1804 | while (--i >= 0) |
7d8316df | 1805 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1806 | goto probe_aux_dev_err; |
f0fba2ad | 1807 | } |
6b3ed785 | 1808 | } |
f0fba2ad LG |
1809 | #endif |
1810 | ||
1811 | card->instantiated = 1; | |
4f4c0072 | 1812 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1813 | mutex_unlock(&card->mutex); |
b19e6e7b MB |
1814 | |
1815 | return 0; | |
f0fba2ad | 1816 | |
2eea392d JN |
1817 | probe_aux_dev_err: |
1818 | for (i = 0; i < card->num_aux_devs; i++) | |
1819 | soc_remove_aux_dev(card, i); | |
1820 | ||
f0fba2ad | 1821 | probe_dai_err: |
0671fd8e | 1822 | soc_remove_dai_links(card); |
f0fba2ad LG |
1823 | |
1824 | card_probe_error: | |
87506549 | 1825 | if (card->remove) |
e7361ec4 | 1826 | card->remove(card); |
f0fba2ad LG |
1827 | |
1828 | snd_card_free(card->snd_card); | |
1829 | ||
b19e6e7b | 1830 | base_error: |
f0fba2ad | 1831 | mutex_unlock(&card->mutex); |
db2a4165 | 1832 | |
b19e6e7b | 1833 | return ret; |
435c5e25 MB |
1834 | } |
1835 | ||
1836 | /* probes a new socdev */ | |
1837 | static int soc_probe(struct platform_device *pdev) | |
1838 | { | |
f0fba2ad | 1839 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1840 | |
70a7ca34 VK |
1841 | /* |
1842 | * no card, so machine driver should be registering card | |
1843 | * we should not be here in that case so ret error | |
1844 | */ | |
1845 | if (!card) | |
1846 | return -EINVAL; | |
1847 | ||
fe4085e8 MB |
1848 | dev_warn(&pdev->dev, |
1849 | "ASoC machine %s should use snd_soc_register_card()\n", | |
1850 | card->name); | |
1851 | ||
435c5e25 MB |
1852 | /* Bodge while we unpick instantiation */ |
1853 | card->dev = &pdev->dev; | |
f0fba2ad | 1854 | |
28d528c8 | 1855 | return snd_soc_register_card(card); |
db2a4165 FM |
1856 | } |
1857 | ||
b0e26485 | 1858 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1859 | { |
1860 | int i; | |
db2a4165 | 1861 | |
b0e26485 VK |
1862 | /* make sure any delayed work runs */ |
1863 | for (i = 0; i < card->num_rtd; i++) { | |
1864 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1865 | flush_delayed_work(&rtd->delayed_work); |
b0e26485 | 1866 | } |
914dc182 | 1867 | |
b0e26485 VK |
1868 | /* remove auxiliary devices */ |
1869 | for (i = 0; i < card->num_aux_devs; i++) | |
1870 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1871 | |
b0e26485 | 1872 | /* remove and free each DAI */ |
0671fd8e | 1873 | soc_remove_dai_links(card); |
2eea392d | 1874 | |
b0e26485 | 1875 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1876 | |
b0e26485 VK |
1877 | /* remove the card */ |
1878 | if (card->remove) | |
e7361ec4 | 1879 | card->remove(card); |
a6052154 | 1880 | |
0aaae527 LPC |
1881 | snd_soc_dapm_free(&card->dapm); |
1882 | ||
b0e26485 VK |
1883 | snd_card_free(card->snd_card); |
1884 | return 0; | |
1885 | ||
1886 | } | |
1887 | ||
1888 | /* removes a socdev */ | |
1889 | static int soc_remove(struct platform_device *pdev) | |
1890 | { | |
1891 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1892 | |
c5af3a2e | 1893 | snd_soc_unregister_card(card); |
db2a4165 FM |
1894 | return 0; |
1895 | } | |
1896 | ||
6f8ab4ac | 1897 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1898 | { |
6f8ab4ac | 1899 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1900 | int i; |
51737470 MB |
1901 | |
1902 | if (!card->instantiated) | |
416356fc | 1903 | return 0; |
51737470 MB |
1904 | |
1905 | /* Flush out pmdown_time work - we actually do want to run it | |
1906 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1907 | for (i = 0; i < card->num_rtd; i++) { |
1908 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
43829731 | 1909 | flush_delayed_work(&rtd->delayed_work); |
f0fba2ad | 1910 | } |
51737470 | 1911 | |
f0fba2ad | 1912 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1913 | |
1914 | return 0; | |
51737470 | 1915 | } |
6f8ab4ac | 1916 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1917 | |
6f8ab4ac | 1918 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1919 | .suspend = snd_soc_suspend, |
1920 | .resume = snd_soc_resume, | |
1921 | .freeze = snd_soc_suspend, | |
1922 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1923 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1924 | .restore = snd_soc_resume, |
416356fc | 1925 | }; |
deb2607e | 1926 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1927 | |
db2a4165 FM |
1928 | /* ASoC platform driver */ |
1929 | static struct platform_driver soc_driver = { | |
1930 | .driver = { | |
1931 | .name = "soc-audio", | |
8b45a209 | 1932 | .owner = THIS_MODULE, |
6f8ab4ac | 1933 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1934 | }, |
1935 | .probe = soc_probe, | |
1936 | .remove = soc_remove, | |
db2a4165 FM |
1937 | }; |
1938 | ||
096e49d5 MB |
1939 | /** |
1940 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1941 | * | |
1942 | * @codec: CODEC to query. | |
1943 | * @reg: Register to query. | |
1944 | * | |
1945 | * Boolean function indiciating if a CODEC register is volatile. | |
1946 | */ | |
181e055e MB |
1947 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1948 | unsigned int reg) | |
096e49d5 | 1949 | { |
1500b7b5 DP |
1950 | if (codec->volatile_register) |
1951 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1952 | else |
1953 | return 0; | |
1954 | } | |
1955 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1956 | ||
239c9706 DP |
1957 | /** |
1958 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1959 | * | |
1960 | * @codec: CODEC to query. | |
1961 | * @reg: Register to query. | |
1962 | * | |
1963 | * Boolean function indicating if a CODEC register is readable. | |
1964 | */ | |
1965 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1966 | unsigned int reg) | |
1967 | { | |
1968 | if (codec->readable_register) | |
1969 | return codec->readable_register(codec, reg); | |
1970 | else | |
63fa0a28 | 1971 | return 1; |
239c9706 DP |
1972 | } |
1973 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1974 | ||
1975 | /** | |
1976 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1977 | * | |
1978 | * @codec: CODEC to query. | |
1979 | * @reg: Register to query. | |
1980 | * | |
1981 | * Boolean function indicating if a CODEC register is writable. | |
1982 | */ | |
1983 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1984 | unsigned int reg) | |
1985 | { | |
1986 | if (codec->writable_register) | |
1987 | return codec->writable_register(codec, reg); | |
1988 | else | |
63fa0a28 | 1989 | return 1; |
239c9706 DP |
1990 | } |
1991 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1992 | ||
f1442bc1 LG |
1993 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1994 | unsigned int reg) | |
1995 | { | |
1996 | unsigned int ret; | |
1997 | ||
1998 | if (!platform->driver->read) { | |
1999 | dev_err(platform->dev, "platform has no read back\n"); | |
2000 | return -1; | |
2001 | } | |
2002 | ||
2003 | ret = platform->driver->read(platform, reg); | |
2004 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 2005 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
2006 | |
2007 | return ret; | |
2008 | } | |
2009 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
2010 | ||
2011 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
2012 | unsigned int reg, unsigned int val) | |
2013 | { | |
2014 | if (!platform->driver->write) { | |
2015 | dev_err(platform->dev, "platform has no write back\n"); | |
2016 | return -1; | |
2017 | } | |
2018 | ||
2019 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 2020 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
2021 | return platform->driver->write(platform, reg, val); |
2022 | } | |
2023 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
2024 | ||
db2a4165 FM |
2025 | /** |
2026 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2027 | * @codec: audio codec | |
2028 | * @ops: AC97 bus operations | |
2029 | * @num: AC97 codec number | |
2030 | * | |
2031 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2032 | */ | |
2033 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2034 | struct snd_ac97_bus_ops *ops, int num) | |
2035 | { | |
2036 | mutex_lock(&codec->mutex); | |
2037 | ||
2038 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2039 | if (codec->ac97 == NULL) { | |
2040 | mutex_unlock(&codec->mutex); | |
2041 | return -ENOMEM; | |
2042 | } | |
2043 | ||
2044 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2045 | if (codec->ac97->bus == NULL) { | |
2046 | kfree(codec->ac97); | |
2047 | codec->ac97 = NULL; | |
2048 | mutex_unlock(&codec->mutex); | |
2049 | return -ENOMEM; | |
2050 | } | |
2051 | ||
2052 | codec->ac97->bus->ops = ops; | |
2053 | codec->ac97->num = num; | |
0562f788 MW |
2054 | |
2055 | /* | |
2056 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2057 | * device will be registered with the device subsystem later on. | |
2058 | */ | |
2059 | codec->ac97_created = 1; | |
2060 | ||
db2a4165 FM |
2061 | mutex_unlock(&codec->mutex); |
2062 | return 0; | |
2063 | } | |
2064 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2065 | ||
2066 | /** | |
2067 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2068 | * @codec: audio codec | |
2069 | * | |
2070 | * Frees AC97 codec device resources. | |
2071 | */ | |
2072 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2073 | { | |
2074 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2075 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2076 | soc_unregister_ac97_dai_link(codec); | |
2077 | #endif | |
db2a4165 FM |
2078 | kfree(codec->ac97->bus); |
2079 | kfree(codec->ac97); | |
2080 | codec->ac97 = NULL; | |
0562f788 | 2081 | codec->ac97_created = 0; |
db2a4165 FM |
2082 | mutex_unlock(&codec->mutex); |
2083 | } | |
2084 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2085 | ||
c3753707 MB |
2086 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2087 | { | |
2088 | unsigned int ret; | |
2089 | ||
c3acec26 | 2090 | ret = codec->read(codec, reg); |
c3753707 | 2091 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2092 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2093 | |
2094 | return ret; | |
2095 | } | |
2096 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2097 | ||
2098 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2099 | unsigned int reg, unsigned int val) | |
2100 | { | |
2101 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2102 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2103 | return codec->write(codec, reg, val); |
c3753707 MB |
2104 | } |
2105 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2106 | ||
5fb609d4 DP |
2107 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
2108 | unsigned int reg, const void *data, size_t len) | |
2109 | { | |
2110 | return codec->bulk_write_raw(codec, reg, data, len); | |
2111 | } | |
2112 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
2113 | ||
db2a4165 FM |
2114 | /** |
2115 | * snd_soc_update_bits - update codec register bits | |
2116 | * @codec: audio codec | |
2117 | * @reg: codec register | |
2118 | * @mask: register mask | |
2119 | * @value: new value | |
2120 | * | |
2121 | * Writes new register value. | |
2122 | * | |
180c329d | 2123 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2124 | */ |
2125 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2126 | unsigned int mask, unsigned int value) |
db2a4165 | 2127 | { |
8a713da8 | 2128 | bool change; |
46f5822f | 2129 | unsigned int old, new; |
180c329d TT |
2130 | int ret; |
2131 | ||
8a713da8 MB |
2132 | if (codec->using_regmap) { |
2133 | ret = regmap_update_bits_check(codec->control_data, reg, | |
2134 | mask, value, &change); | |
2135 | } else { | |
2136 | ret = snd_soc_read(codec, reg); | |
180c329d TT |
2137 | if (ret < 0) |
2138 | return ret; | |
8a713da8 MB |
2139 | |
2140 | old = ret; | |
2141 | new = (old & ~mask) | (value & mask); | |
2142 | change = old != new; | |
2143 | if (change) | |
2144 | ret = snd_soc_write(codec, reg, new); | |
180c329d | 2145 | } |
db2a4165 | 2146 | |
8a713da8 MB |
2147 | if (ret < 0) |
2148 | return ret; | |
2149 | ||
db2a4165 FM |
2150 | return change; |
2151 | } | |
2152 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2153 | ||
6c508c62 EN |
2154 | /** |
2155 | * snd_soc_update_bits_locked - update codec register bits | |
2156 | * @codec: audio codec | |
2157 | * @reg: codec register | |
2158 | * @mask: register mask | |
2159 | * @value: new value | |
2160 | * | |
2161 | * Writes new register value, and takes the codec mutex. | |
2162 | * | |
2163 | * Returns 1 for change else 0. | |
2164 | */ | |
dd1b3d53 MB |
2165 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2166 | unsigned short reg, unsigned int mask, | |
2167 | unsigned int value) | |
6c508c62 EN |
2168 | { |
2169 | int change; | |
2170 | ||
2171 | mutex_lock(&codec->mutex); | |
2172 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2173 | mutex_unlock(&codec->mutex); | |
2174 | ||
2175 | return change; | |
2176 | } | |
dd1b3d53 | 2177 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2178 | |
db2a4165 FM |
2179 | /** |
2180 | * snd_soc_test_bits - test register for change | |
2181 | * @codec: audio codec | |
2182 | * @reg: codec register | |
2183 | * @mask: register mask | |
2184 | * @value: new value | |
2185 | * | |
2186 | * Tests a register with a new value and checks if the new value is | |
2187 | * different from the old value. | |
2188 | * | |
2189 | * Returns 1 for change else 0. | |
2190 | */ | |
2191 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2192 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2193 | { |
2194 | int change; | |
46f5822f | 2195 | unsigned int old, new; |
db2a4165 | 2196 | |
db2a4165 FM |
2197 | old = snd_soc_read(codec, reg); |
2198 | new = (old & ~mask) | value; | |
2199 | change = old != new; | |
db2a4165 FM |
2200 | |
2201 | return change; | |
2202 | } | |
2203 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2204 | ||
db2a4165 FM |
2205 | /** |
2206 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2207 | * @substream: the pcm substream | |
2208 | * @hw: the hardware parameters | |
2209 | * | |
2210 | * Sets the substream runtime hardware parameters. | |
2211 | */ | |
2212 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2213 | const struct snd_pcm_hardware *hw) | |
2214 | { | |
2215 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2216 | runtime->hw.info = hw->info; | |
2217 | runtime->hw.formats = hw->formats; | |
2218 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2219 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2220 | runtime->hw.periods_min = hw->periods_min; | |
2221 | runtime->hw.periods_max = hw->periods_max; | |
2222 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2223 | runtime->hw.fifo_size = hw->fifo_size; | |
2224 | return 0; | |
2225 | } | |
2226 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2227 | ||
2228 | /** | |
2229 | * snd_soc_cnew - create new control | |
2230 | * @_template: control template | |
2231 | * @data: control private data | |
ac11a2b3 | 2232 | * @long_name: control long name |
efb7ac3f | 2233 | * @prefix: control name prefix |
db2a4165 FM |
2234 | * |
2235 | * Create a new mixer control from a template control. | |
2236 | * | |
2237 | * Returns 0 for success, else error. | |
2238 | */ | |
2239 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2240 | void *data, const char *long_name, |
efb7ac3f | 2241 | const char *prefix) |
db2a4165 FM |
2242 | { |
2243 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2244 | struct snd_kcontrol *kcontrol; |
2245 | char *name = NULL; | |
2246 | int name_len; | |
db2a4165 FM |
2247 | |
2248 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2249 | template.index = 0; |
2250 | ||
efb7ac3f MB |
2251 | if (!long_name) |
2252 | long_name = template.name; | |
2253 | ||
2254 | if (prefix) { | |
2255 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 2256 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
2257 | if (!name) |
2258 | return NULL; | |
2259 | ||
2260 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2261 | ||
2262 | template.name = name; | |
2263 | } else { | |
2264 | template.name = long_name; | |
2265 | } | |
2266 | ||
2267 | kcontrol = snd_ctl_new1(&template, data); | |
2268 | ||
2269 | kfree(name); | |
2270 | ||
2271 | return kcontrol; | |
db2a4165 FM |
2272 | } |
2273 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2274 | ||
022658be LG |
2275 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2276 | const struct snd_kcontrol_new *controls, int num_controls, | |
2277 | const char *prefix, void *data) | |
2278 | { | |
2279 | int err, i; | |
2280 | ||
2281 | for (i = 0; i < num_controls; i++) { | |
2282 | const struct snd_kcontrol_new *control = &controls[i]; | |
2283 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2284 | control->name, prefix)); | |
2285 | if (err < 0) { | |
2286 | dev_err(dev, "Failed to add %s: %d\n", control->name, err); | |
2287 | return err; | |
2288 | } | |
2289 | } | |
2290 | ||
2291 | return 0; | |
2292 | } | |
2293 | ||
3e8e1952 | 2294 | /** |
022658be LG |
2295 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2296 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2297 | * duplicating this code. |
2298 | * | |
2299 | * @codec: codec to add controls to | |
2300 | * @controls: array of controls to add | |
2301 | * @num_controls: number of elements in the array | |
2302 | * | |
2303 | * Return 0 for success, else error. | |
2304 | */ | |
022658be | 2305 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
3e8e1952 IM |
2306 | const struct snd_kcontrol_new *controls, int num_controls) |
2307 | { | |
f0fba2ad | 2308 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 | 2309 | |
022658be LG |
2310 | return snd_soc_add_controls(card, codec->dev, controls, num_controls, |
2311 | codec->name_prefix, codec); | |
3e8e1952 | 2312 | } |
022658be | 2313 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2314 | |
a491a5c8 LG |
2315 | /** |
2316 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2317 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2318 | * |
2319 | * @platform: platform to add controls to | |
2320 | * @controls: array of controls to add | |
2321 | * @num_controls: number of elements in the array | |
2322 | * | |
2323 | * Return 0 for success, else error. | |
2324 | */ | |
2325 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2326 | const struct snd_kcontrol_new *controls, int num_controls) | |
2327 | { | |
2328 | struct snd_card *card = platform->card->snd_card; | |
a491a5c8 | 2329 | |
022658be LG |
2330 | return snd_soc_add_controls(card, platform->dev, controls, num_controls, |
2331 | NULL, platform); | |
a491a5c8 LG |
2332 | } |
2333 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2334 | ||
022658be LG |
2335 | /** |
2336 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2337 | * Convenience function to add a list of controls. | |
2338 | * | |
2339 | * @soc_card: SoC card to add controls to | |
2340 | * @controls: array of controls to add | |
2341 | * @num_controls: number of elements in the array | |
2342 | * | |
2343 | * Return 0 for success, else error. | |
2344 | */ | |
2345 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2346 | const struct snd_kcontrol_new *controls, int num_controls) | |
2347 | { | |
2348 | struct snd_card *card = soc_card->snd_card; | |
2349 | ||
2350 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2351 | NULL, soc_card); | |
2352 | } | |
2353 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2354 | ||
2355 | /** | |
2356 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2357 | * Convienience function to add a list of controls. | |
2358 | * | |
2359 | * @dai: DAI to add controls to | |
2360 | * @controls: array of controls to add | |
2361 | * @num_controls: number of elements in the array | |
2362 | * | |
2363 | * Return 0 for success, else error. | |
2364 | */ | |
2365 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2366 | const struct snd_kcontrol_new *controls, int num_controls) | |
2367 | { | |
2368 | struct snd_card *card = dai->card->snd_card; | |
2369 | ||
2370 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2371 | NULL, dai); | |
2372 | } | |
2373 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2374 | ||
db2a4165 FM |
2375 | /** |
2376 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2377 | * @kcontrol: mixer control | |
2378 | * @uinfo: control element information | |
2379 | * | |
2380 | * Callback to provide information about a double enumerated | |
2381 | * mixer control. | |
2382 | * | |
2383 | * Returns 0 for success. | |
2384 | */ | |
2385 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2386 | struct snd_ctl_elem_info *uinfo) | |
2387 | { | |
2388 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2389 | ||
2390 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2391 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2392 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2393 | |
f8ba0b7b JS |
2394 | if (uinfo->value.enumerated.item > e->max - 1) |
2395 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2396 | strcpy(uinfo->value.enumerated.name, |
2397 | e->texts[uinfo->value.enumerated.item]); | |
2398 | return 0; | |
2399 | } | |
2400 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2401 | ||
2402 | /** | |
2403 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2404 | * @kcontrol: mixer control | |
ac11a2b3 | 2405 | * @ucontrol: control element information |
db2a4165 FM |
2406 | * |
2407 | * Callback to get the value of a double enumerated mixer. | |
2408 | * | |
2409 | * Returns 0 for success. | |
2410 | */ | |
2411 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2412 | struct snd_ctl_elem_value *ucontrol) | |
2413 | { | |
2414 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2415 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
86767b7d | 2416 | unsigned int val; |
db2a4165 | 2417 | |
db2a4165 | 2418 | val = snd_soc_read(codec, e->reg); |
3ff3f64b | 2419 | ucontrol->value.enumerated.item[0] |
86767b7d | 2420 | = (val >> e->shift_l) & e->mask; |
db2a4165 FM |
2421 | if (e->shift_l != e->shift_r) |
2422 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2423 | (val >> e->shift_r) & e->mask; |
db2a4165 FM |
2424 | |
2425 | return 0; | |
2426 | } | |
2427 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2428 | ||
2429 | /** | |
2430 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2431 | * @kcontrol: mixer control | |
ac11a2b3 | 2432 | * @ucontrol: control element information |
db2a4165 FM |
2433 | * |
2434 | * Callback to set the value of a double enumerated mixer. | |
2435 | * | |
2436 | * Returns 0 for success. | |
2437 | */ | |
2438 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2439 | struct snd_ctl_elem_value *ucontrol) | |
2440 | { | |
2441 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2442 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2443 | unsigned int val; |
86767b7d | 2444 | unsigned int mask; |
db2a4165 | 2445 | |
f8ba0b7b | 2446 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2447 | return -EINVAL; |
2448 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
86767b7d | 2449 | mask = e->mask << e->shift_l; |
db2a4165 | 2450 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2451 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2452 | return -EINVAL; |
2453 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2454 | mask |= e->mask << e->shift_r; |
db2a4165 FM |
2455 | } |
2456 | ||
6c508c62 | 2457 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2458 | } |
2459 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2460 | ||
2e72f8e3 PU |
2461 | /** |
2462 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2463 | * @kcontrol: mixer control | |
2464 | * @ucontrol: control element information | |
2465 | * | |
2466 | * Callback to get the value of a double semi enumerated mixer. | |
2467 | * | |
2468 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2469 | * used for handling bitfield coded enumeration for example. | |
2470 | * | |
2471 | * Returns 0 for success. | |
2472 | */ | |
2473 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2474 | struct snd_ctl_elem_value *ucontrol) | |
2475 | { | |
2476 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2477 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2478 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2479 | |
2480 | reg_val = snd_soc_read(codec, e->reg); | |
2481 | val = (reg_val >> e->shift_l) & e->mask; | |
2482 | for (mux = 0; mux < e->max; mux++) { | |
2483 | if (val == e->values[mux]) | |
2484 | break; | |
2485 | } | |
2486 | ucontrol->value.enumerated.item[0] = mux; | |
2487 | if (e->shift_l != e->shift_r) { | |
2488 | val = (reg_val >> e->shift_r) & e->mask; | |
2489 | for (mux = 0; mux < e->max; mux++) { | |
2490 | if (val == e->values[mux]) | |
2491 | break; | |
2492 | } | |
2493 | ucontrol->value.enumerated.item[1] = mux; | |
2494 | } | |
2495 | ||
2496 | return 0; | |
2497 | } | |
2498 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2499 | ||
2500 | /** | |
2501 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2502 | * @kcontrol: mixer control | |
2503 | * @ucontrol: control element information | |
2504 | * | |
2505 | * Callback to set the value of a double semi enumerated mixer. | |
2506 | * | |
2507 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2508 | * used for handling bitfield coded enumeration for example. | |
2509 | * | |
2510 | * Returns 0 for success. | |
2511 | */ | |
2512 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2513 | struct snd_ctl_elem_value *ucontrol) | |
2514 | { | |
2515 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2516 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2517 | unsigned int val; |
2518 | unsigned int mask; | |
2e72f8e3 PU |
2519 | |
2520 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2521 | return -EINVAL; | |
2522 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2523 | mask = e->mask << e->shift_l; | |
2524 | if (e->shift_l != e->shift_r) { | |
2525 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2526 | return -EINVAL; | |
2527 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2528 | mask |= e->mask << e->shift_r; | |
2529 | } | |
2530 | ||
6c508c62 | 2531 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2532 | } |
2533 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2534 | ||
db2a4165 FM |
2535 | /** |
2536 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2537 | * @kcontrol: mixer control | |
2538 | * @uinfo: control element information | |
2539 | * | |
2540 | * Callback to provide information about an external enumerated | |
2541 | * single mixer. | |
2542 | * | |
2543 | * Returns 0 for success. | |
2544 | */ | |
2545 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2546 | struct snd_ctl_elem_info *uinfo) | |
2547 | { | |
2548 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2549 | ||
2550 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2551 | uinfo->count = 1; | |
f8ba0b7b | 2552 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2553 | |
f8ba0b7b JS |
2554 | if (uinfo->value.enumerated.item > e->max - 1) |
2555 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2556 | strcpy(uinfo->value.enumerated.name, |
2557 | e->texts[uinfo->value.enumerated.item]); | |
2558 | return 0; | |
2559 | } | |
2560 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2561 | ||
2562 | /** | |
2563 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2564 | * @kcontrol: mixer control | |
2565 | * @uinfo: control element information | |
2566 | * | |
2567 | * Callback to provide information about a single external mixer control. | |
2568 | * | |
2569 | * Returns 0 for success. | |
2570 | */ | |
2571 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2572 | struct snd_ctl_elem_info *uinfo) | |
2573 | { | |
a7a4ac86 PZ |
2574 | int max = kcontrol->private_value; |
2575 | ||
fd5dfad9 | 2576 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2577 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2578 | else | |
2579 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2580 | |
db2a4165 FM |
2581 | uinfo->count = 1; |
2582 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2583 | uinfo->value.integer.max = max; |
db2a4165 FM |
2584 | return 0; |
2585 | } | |
2586 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2587 | ||
db2a4165 FM |
2588 | /** |
2589 | * snd_soc_info_volsw - single mixer info callback | |
2590 | * @kcontrol: mixer control | |
2591 | * @uinfo: control element information | |
2592 | * | |
e8f5a103 PU |
2593 | * Callback to provide information about a single mixer control, or a double |
2594 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2595 | * |
2596 | * Returns 0 for success. | |
2597 | */ | |
2598 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2599 | struct snd_ctl_elem_info *uinfo) | |
2600 | { | |
4eaa9819 JS |
2601 | struct soc_mixer_control *mc = |
2602 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2603 | int platform_max; |
db2a4165 | 2604 | |
d11bb4a9 PU |
2605 | if (!mc->platform_max) |
2606 | mc->platform_max = mc->max; | |
2607 | platform_max = mc->platform_max; | |
2608 | ||
2609 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2610 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2611 | else | |
2612 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2613 | ||
e8f5a103 | 2614 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2615 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2616 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2617 | return 0; |
2618 | } | |
2619 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2620 | ||
2621 | /** | |
2622 | * snd_soc_get_volsw - single mixer get callback | |
2623 | * @kcontrol: mixer control | |
ac11a2b3 | 2624 | * @ucontrol: control element information |
db2a4165 | 2625 | * |
f7915d99 PU |
2626 | * Callback to get the value of a single mixer control, or a double mixer |
2627 | * control that spans 2 registers. | |
db2a4165 FM |
2628 | * |
2629 | * Returns 0 for success. | |
2630 | */ | |
2631 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2632 | struct snd_ctl_elem_value *ucontrol) | |
2633 | { | |
4eaa9819 JS |
2634 | struct soc_mixer_control *mc = |
2635 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2636 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2637 | unsigned int reg = mc->reg; |
f7915d99 | 2638 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2639 | unsigned int shift = mc->shift; |
2640 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2641 | int max = mc->max; |
815ecf8d JS |
2642 | unsigned int mask = (1 << fls(max)) - 1; |
2643 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2644 | |
2645 | ucontrol->value.integer.value[0] = | |
2646 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2647 | if (invert) |
db2a4165 | 2648 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2649 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2650 | |
2651 | if (snd_soc_volsw_is_stereo(mc)) { | |
2652 | if (reg == reg2) | |
2653 | ucontrol->value.integer.value[1] = | |
2654 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2655 | else | |
2656 | ucontrol->value.integer.value[1] = | |
2657 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2658 | if (invert) | |
db2a4165 | 2659 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2660 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2661 | } |
2662 | ||
2663 | return 0; | |
2664 | } | |
2665 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2666 | ||
2667 | /** | |
2668 | * snd_soc_put_volsw - single mixer put callback | |
2669 | * @kcontrol: mixer control | |
ac11a2b3 | 2670 | * @ucontrol: control element information |
db2a4165 | 2671 | * |
974815ba PU |
2672 | * Callback to set the value of a single mixer control, or a double mixer |
2673 | * control that spans 2 registers. | |
db2a4165 FM |
2674 | * |
2675 | * Returns 0 for success. | |
2676 | */ | |
2677 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2678 | struct snd_ctl_elem_value *ucontrol) | |
2679 | { | |
4eaa9819 JS |
2680 | struct soc_mixer_control *mc = |
2681 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2682 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2683 | unsigned int reg = mc->reg; |
974815ba | 2684 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2685 | unsigned int shift = mc->shift; |
2686 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2687 | int max = mc->max; |
815ecf8d JS |
2688 | unsigned int mask = (1 << fls(max)) - 1; |
2689 | unsigned int invert = mc->invert; | |
974815ba PU |
2690 | int err; |
2691 | bool type_2r = 0; | |
2692 | unsigned int val2 = 0; | |
2693 | unsigned int val, val_mask; | |
db2a4165 FM |
2694 | |
2695 | val = (ucontrol->value.integer.value[0] & mask); | |
2696 | if (invert) | |
a7a4ac86 | 2697 | val = max - val; |
db2a4165 FM |
2698 | val_mask = mask << shift; |
2699 | val = val << shift; | |
974815ba | 2700 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2701 | val2 = (ucontrol->value.integer.value[1] & mask); |
2702 | if (invert) | |
a7a4ac86 | 2703 | val2 = max - val2; |
974815ba PU |
2704 | if (reg == reg2) { |
2705 | val_mask |= mask << rshift; | |
2706 | val |= val2 << rshift; | |
2707 | } else { | |
2708 | val2 = val2 << shift; | |
2709 | type_2r = 1; | |
2710 | } | |
db2a4165 | 2711 | } |
6c508c62 | 2712 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2713 | if (err < 0) |
db2a4165 FM |
2714 | return err; |
2715 | ||
974815ba PU |
2716 | if (type_2r) |
2717 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2718 | ||
db2a4165 FM |
2719 | return err; |
2720 | } | |
974815ba | 2721 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2722 | |
1d99f243 BA |
2723 | /** |
2724 | * snd_soc_get_volsw_sx - single mixer get callback | |
2725 | * @kcontrol: mixer control | |
2726 | * @ucontrol: control element information | |
2727 | * | |
2728 | * Callback to get the value of a single mixer control, or a double mixer | |
2729 | * control that spans 2 registers. | |
2730 | * | |
2731 | * Returns 0 for success. | |
2732 | */ | |
2733 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, | |
2734 | struct snd_ctl_elem_value *ucontrol) | |
2735 | { | |
2736 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2737 | struct soc_mixer_control *mc = | |
2738 | (struct soc_mixer_control *)kcontrol->private_value; | |
2739 | ||
2740 | unsigned int reg = mc->reg; | |
2741 | unsigned int reg2 = mc->rreg; | |
2742 | unsigned int shift = mc->shift; | |
2743 | unsigned int rshift = mc->rshift; | |
2744 | int max = mc->max; | |
2745 | int min = mc->min; | |
2746 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
2747 | ||
2748 | ucontrol->value.integer.value[0] = | |
2749 | ((snd_soc_read(codec, reg) >> shift) - min) & mask; | |
2750 | ||
2751 | if (snd_soc_volsw_is_stereo(mc)) | |
2752 | ucontrol->value.integer.value[1] = | |
2753 | ((snd_soc_read(codec, reg2) >> rshift) - min) & mask; | |
2754 | ||
2755 | return 0; | |
2756 | } | |
2757 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); | |
2758 | ||
2759 | /** | |
2760 | * snd_soc_put_volsw_sx - double mixer set callback | |
2761 | * @kcontrol: mixer control | |
2762 | * @uinfo: control element information | |
2763 | * | |
2764 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2765 | * | |
2766 | * Returns 0 for success. | |
2767 | */ | |
2768 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, | |
2769 | struct snd_ctl_elem_value *ucontrol) | |
2770 | { | |
2771 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2772 | struct soc_mixer_control *mc = | |
2773 | (struct soc_mixer_control *)kcontrol->private_value; | |
2774 | ||
2775 | unsigned int reg = mc->reg; | |
2776 | unsigned int reg2 = mc->rreg; | |
2777 | unsigned int shift = mc->shift; | |
2778 | unsigned int rshift = mc->rshift; | |
2779 | int max = mc->max; | |
2780 | int min = mc->min; | |
2781 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
27f1d759 | 2782 | int err = 0; |
1d99f243 BA |
2783 | unsigned short val, val_mask, val2 = 0; |
2784 | ||
2785 | val_mask = mask << shift; | |
2786 | val = (ucontrol->value.integer.value[0] + min) & mask; | |
2787 | val = val << shift; | |
2788 | ||
2789 | if (snd_soc_update_bits_locked(codec, reg, val_mask, val)) | |
2790 | return err; | |
2791 | ||
2792 | if (snd_soc_volsw_is_stereo(mc)) { | |
2793 | val_mask = mask << rshift; | |
2794 | val2 = (ucontrol->value.integer.value[1] + min) & mask; | |
2795 | val2 = val2 << rshift; | |
2796 | ||
2797 | if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2)) | |
2798 | return err; | |
2799 | } | |
2800 | return 0; | |
2801 | } | |
2802 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); | |
2803 | ||
e13ac2e9 MB |
2804 | /** |
2805 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2806 | * @kcontrol: mixer control | |
2807 | * @uinfo: control element information | |
2808 | * | |
2809 | * Callback to provide information about a signed mixer control. | |
2810 | * | |
2811 | * Returns 0 for success. | |
2812 | */ | |
2813 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2814 | struct snd_ctl_elem_info *uinfo) | |
2815 | { | |
4eaa9819 JS |
2816 | struct soc_mixer_control *mc = |
2817 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2818 | int platform_max; |
4eaa9819 | 2819 | int min = mc->min; |
e13ac2e9 | 2820 | |
d11bb4a9 PU |
2821 | if (!mc->platform_max) |
2822 | mc->platform_max = mc->max; | |
2823 | platform_max = mc->platform_max; | |
2824 | ||
e13ac2e9 MB |
2825 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2826 | uinfo->count = 2; | |
2827 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2828 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2829 | return 0; |
2830 | } | |
2831 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2832 | ||
2833 | /** | |
2834 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2835 | * @kcontrol: mixer control | |
ac11a2b3 | 2836 | * @ucontrol: control element information |
e13ac2e9 MB |
2837 | * |
2838 | * Callback to get the value of a signed mixer control. | |
2839 | * | |
2840 | * Returns 0 for success. | |
2841 | */ | |
2842 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2843 | struct snd_ctl_elem_value *ucontrol) | |
2844 | { | |
4eaa9819 JS |
2845 | struct soc_mixer_control *mc = |
2846 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2847 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2848 | unsigned int reg = mc->reg; |
4eaa9819 | 2849 | int min = mc->min; |
e13ac2e9 MB |
2850 | int val = snd_soc_read(codec, reg); |
2851 | ||
2852 | ucontrol->value.integer.value[0] = | |
2853 | ((signed char)(val & 0xff))-min; | |
2854 | ucontrol->value.integer.value[1] = | |
2855 | ((signed char)((val >> 8) & 0xff))-min; | |
2856 | return 0; | |
2857 | } | |
2858 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2859 | ||
2860 | /** | |
2861 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2862 | * @kcontrol: mixer control | |
ac11a2b3 | 2863 | * @ucontrol: control element information |
e13ac2e9 MB |
2864 | * |
2865 | * Callback to set the value of a signed mixer control. | |
2866 | * | |
2867 | * Returns 0 for success. | |
2868 | */ | |
2869 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2870 | struct snd_ctl_elem_value *ucontrol) | |
2871 | { | |
4eaa9819 JS |
2872 | struct soc_mixer_control *mc = |
2873 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2874 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2875 | unsigned int reg = mc->reg; |
4eaa9819 | 2876 | int min = mc->min; |
46f5822f | 2877 | unsigned int val; |
e13ac2e9 MB |
2878 | |
2879 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2880 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2881 | ||
6c508c62 | 2882 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2883 | } |
2884 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2885 | ||
6c9d8cf6 AT |
2886 | /** |
2887 | * snd_soc_info_volsw_range - single mixer info callback with range. | |
2888 | * @kcontrol: mixer control | |
2889 | * @uinfo: control element information | |
2890 | * | |
2891 | * Callback to provide information, within a range, about a single | |
2892 | * mixer control. | |
2893 | * | |
2894 | * returns 0 for success. | |
2895 | */ | |
2896 | int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, | |
2897 | struct snd_ctl_elem_info *uinfo) | |
2898 | { | |
2899 | struct soc_mixer_control *mc = | |
2900 | (struct soc_mixer_control *)kcontrol->private_value; | |
2901 | int platform_max; | |
2902 | int min = mc->min; | |
2903 | ||
2904 | if (!mc->platform_max) | |
2905 | mc->platform_max = mc->max; | |
2906 | platform_max = mc->platform_max; | |
2907 | ||
2908 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2909 | uinfo->count = 1; | |
2910 | uinfo->value.integer.min = 0; | |
2911 | uinfo->value.integer.max = platform_max - min; | |
2912 | ||
2913 | return 0; | |
2914 | } | |
2915 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); | |
2916 | ||
2917 | /** | |
2918 | * snd_soc_put_volsw_range - single mixer put value callback with range. | |
2919 | * @kcontrol: mixer control | |
2920 | * @ucontrol: control element information | |
2921 | * | |
2922 | * Callback to set the value, within a range, for a single mixer control. | |
2923 | * | |
2924 | * Returns 0 for success. | |
2925 | */ | |
2926 | int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, | |
2927 | struct snd_ctl_elem_value *ucontrol) | |
2928 | { | |
2929 | struct soc_mixer_control *mc = | |
2930 | (struct soc_mixer_control *)kcontrol->private_value; | |
2931 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2932 | unsigned int reg = mc->reg; | |
2933 | unsigned int shift = mc->shift; | |
2934 | int min = mc->min; | |
2935 | int max = mc->max; | |
2936 | unsigned int mask = (1 << fls(max)) - 1; | |
2937 | unsigned int invert = mc->invert; | |
2938 | unsigned int val, val_mask; | |
2939 | ||
2940 | val = ((ucontrol->value.integer.value[0] + min) & mask); | |
2941 | if (invert) | |
2942 | val = max - val; | |
2943 | val_mask = mask << shift; | |
2944 | val = val << shift; | |
2945 | ||
2946 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); | |
2947 | } | |
2948 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); | |
2949 | ||
2950 | /** | |
2951 | * snd_soc_get_volsw_range - single mixer get callback with range | |
2952 | * @kcontrol: mixer control | |
2953 | * @ucontrol: control element information | |
2954 | * | |
2955 | * Callback to get the value, within a range, of a single mixer control. | |
2956 | * | |
2957 | * Returns 0 for success. | |
2958 | */ | |
2959 | int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, | |
2960 | struct snd_ctl_elem_value *ucontrol) | |
2961 | { | |
2962 | struct soc_mixer_control *mc = | |
2963 | (struct soc_mixer_control *)kcontrol->private_value; | |
2964 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2965 | unsigned int reg = mc->reg; | |
2966 | unsigned int shift = mc->shift; | |
2967 | int min = mc->min; | |
2968 | int max = mc->max; | |
2969 | unsigned int mask = (1 << fls(max)) - 1; | |
2970 | unsigned int invert = mc->invert; | |
2971 | ||
2972 | ucontrol->value.integer.value[0] = | |
2973 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2974 | if (invert) | |
2975 | ucontrol->value.integer.value[0] = | |
2976 | max - ucontrol->value.integer.value[0]; | |
2977 | ucontrol->value.integer.value[0] = | |
2978 | ucontrol->value.integer.value[0] - min; | |
2979 | ||
2980 | return 0; | |
2981 | } | |
2982 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); | |
2983 | ||
637d3847 PU |
2984 | /** |
2985 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2986 | * | |
2987 | * @codec: where to look for the control | |
2988 | * @name: Name of the control | |
2989 | * @max: new maximum limit | |
2990 | * | |
2991 | * Return 0 for success, else error. | |
2992 | */ | |
2993 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2994 | const char *name, int max) | |
2995 | { | |
f0fba2ad | 2996 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2997 | struct snd_kcontrol *kctl; |
2998 | struct soc_mixer_control *mc; | |
2999 | int found = 0; | |
3000 | int ret = -EINVAL; | |
3001 | ||
3002 | /* Sanity check for name and max */ | |
3003 | if (unlikely(!name || max <= 0)) | |
3004 | return -EINVAL; | |
3005 | ||
3006 | list_for_each_entry(kctl, &card->controls, list) { | |
3007 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
3008 | found = 1; | |
3009 | break; | |
3010 | } | |
3011 | } | |
3012 | if (found) { | |
3013 | mc = (struct soc_mixer_control *)kctl->private_value; | |
3014 | if (max <= mc->max) { | |
d11bb4a9 | 3015 | mc->platform_max = max; |
637d3847 PU |
3016 | ret = 0; |
3017 | } | |
3018 | } | |
3019 | return ret; | |
3020 | } | |
3021 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
3022 | ||
71d08516 MB |
3023 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, |
3024 | struct snd_ctl_elem_info *uinfo) | |
3025 | { | |
3026 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3027 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
3028 | ||
3029 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
3030 | uinfo->count = params->num_regs * codec->val_bytes; | |
3031 | ||
3032 | return 0; | |
3033 | } | |
3034 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
3035 | ||
3036 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
3037 | struct snd_ctl_elem_value *ucontrol) | |
3038 | { | |
3039 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
3040 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3041 | int ret; | |
3042 | ||
3043 | if (codec->using_regmap) | |
3044 | ret = regmap_raw_read(codec->control_data, params->base, | |
3045 | ucontrol->value.bytes.data, | |
3046 | params->num_regs * codec->val_bytes); | |
3047 | else | |
3048 | ret = -EINVAL; | |
3049 | ||
f831b055 MB |
3050 | /* Hide any masked bytes to ensure consistent data reporting */ |
3051 | if (ret == 0 && params->mask) { | |
3052 | switch (codec->val_bytes) { | |
3053 | case 1: | |
3054 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
3055 | break; | |
3056 | case 2: | |
3057 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
3058 | &= ~params->mask; | |
3059 | break; | |
3060 | case 4: | |
3061 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
3062 | &= ~params->mask; | |
3063 | break; | |
3064 | default: | |
3065 | return -EINVAL; | |
3066 | } | |
3067 | } | |
3068 | ||
71d08516 MB |
3069 | return ret; |
3070 | } | |
3071 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
3072 | ||
3073 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
3074 | struct snd_ctl_elem_value *ucontrol) | |
3075 | { | |
3076 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
3077 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
f831b055 MB |
3078 | int ret, len; |
3079 | unsigned int val; | |
3080 | void *data; | |
71d08516 | 3081 | |
f831b055 MB |
3082 | if (!codec->using_regmap) |
3083 | return -EINVAL; | |
3084 | ||
3085 | data = ucontrol->value.bytes.data; | |
3086 | len = params->num_regs * codec->val_bytes; | |
3087 | ||
3088 | /* | |
3089 | * If we've got a mask then we need to preserve the register | |
3090 | * bits. We shouldn't modify the incoming data so take a | |
3091 | * copy. | |
3092 | */ | |
3093 | if (params->mask) { | |
3094 | ret = regmap_read(codec->control_data, params->base, &val); | |
3095 | if (ret != 0) | |
3096 | return ret; | |
3097 | ||
3098 | val &= params->mask; | |
3099 | ||
3100 | data = kmemdup(data, len, GFP_KERNEL); | |
3101 | if (!data) | |
3102 | return -ENOMEM; | |
3103 | ||
3104 | switch (codec->val_bytes) { | |
3105 | case 1: | |
3106 | ((u8 *)data)[0] &= ~params->mask; | |
3107 | ((u8 *)data)[0] |= val; | |
3108 | break; | |
3109 | case 2: | |
3110 | ((u16 *)data)[0] &= cpu_to_be16(~params->mask); | |
3111 | ((u16 *)data)[0] |= cpu_to_be16(val); | |
3112 | break; | |
3113 | case 4: | |
3114 | ((u32 *)data)[0] &= cpu_to_be32(~params->mask); | |
3115 | ((u32 *)data)[0] |= cpu_to_be32(val); | |
3116 | break; | |
3117 | default: | |
3118 | return -EINVAL; | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | ret = regmap_raw_write(codec->control_data, params->base, | |
3123 | data, len); | |
3124 | ||
3125 | if (params->mask) | |
3126 | kfree(data); | |
71d08516 MB |
3127 | |
3128 | return ret; | |
3129 | } | |
3130 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
3131 | ||
4183eed2 KK |
3132 | /** |
3133 | * snd_soc_info_xr_sx - signed multi register info callback | |
3134 | * @kcontrol: mreg control | |
3135 | * @uinfo: control element information | |
3136 | * | |
3137 | * Callback to provide information of a control that can | |
3138 | * span multiple codec registers which together | |
3139 | * forms a single signed value in a MSB/LSB manner. | |
3140 | * | |
3141 | * Returns 0 for success. | |
3142 | */ | |
3143 | int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, | |
3144 | struct snd_ctl_elem_info *uinfo) | |
3145 | { | |
3146 | struct soc_mreg_control *mc = | |
3147 | (struct soc_mreg_control *)kcontrol->private_value; | |
3148 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
3149 | uinfo->count = 1; | |
3150 | uinfo->value.integer.min = mc->min; | |
3151 | uinfo->value.integer.max = mc->max; | |
3152 | ||
3153 | return 0; | |
3154 | } | |
3155 | EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); | |
3156 | ||
3157 | /** | |
3158 | * snd_soc_get_xr_sx - signed multi register get callback | |
3159 | * @kcontrol: mreg control | |
3160 | * @ucontrol: control element information | |
3161 | * | |
3162 | * Callback to get the value of a control that can span | |
3163 | * multiple codec registers which together forms a single | |
3164 | * signed value in a MSB/LSB manner. The control supports | |
3165 | * specifying total no of bits used to allow for bitfields | |
3166 | * across the multiple codec registers. | |
3167 | * | |
3168 | * Returns 0 for success. | |
3169 | */ | |
3170 | int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, | |
3171 | struct snd_ctl_elem_value *ucontrol) | |
3172 | { | |
3173 | struct soc_mreg_control *mc = | |
3174 | (struct soc_mreg_control *)kcontrol->private_value; | |
3175 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3176 | unsigned int regbase = mc->regbase; | |
3177 | unsigned int regcount = mc->regcount; | |
3178 | unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; | |
3179 | unsigned int regwmask = (1<<regwshift)-1; | |
3180 | unsigned int invert = mc->invert; | |
3181 | unsigned long mask = (1UL<<mc->nbits)-1; | |
3182 | long min = mc->min; | |
3183 | long max = mc->max; | |
3184 | long val = 0; | |
3185 | unsigned long regval; | |
3186 | unsigned int i; | |
3187 | ||
3188 | for (i = 0; i < regcount; i++) { | |
3189 | regval = snd_soc_read(codec, regbase+i) & regwmask; | |
3190 | val |= regval << (regwshift*(regcount-i-1)); | |
3191 | } | |
3192 | val &= mask; | |
3193 | if (min < 0 && val > max) | |
3194 | val |= ~mask; | |
3195 | if (invert) | |
3196 | val = max - val; | |
3197 | ucontrol->value.integer.value[0] = val; | |
3198 | ||
3199 | return 0; | |
3200 | } | |
3201 | EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); | |
3202 | ||
3203 | /** | |
3204 | * snd_soc_put_xr_sx - signed multi register get callback | |
3205 | * @kcontrol: mreg control | |
3206 | * @ucontrol: control element information | |
3207 | * | |
3208 | * Callback to set the value of a control that can span | |
3209 | * multiple codec registers which together forms a single | |
3210 | * signed value in a MSB/LSB manner. The control supports | |
3211 | * specifying total no of bits used to allow for bitfields | |
3212 | * across the multiple codec registers. | |
3213 | * | |
3214 | * Returns 0 for success. | |
3215 | */ | |
3216 | int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, | |
3217 | struct snd_ctl_elem_value *ucontrol) | |
3218 | { | |
3219 | struct soc_mreg_control *mc = | |
3220 | (struct soc_mreg_control *)kcontrol->private_value; | |
3221 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3222 | unsigned int regbase = mc->regbase; | |
3223 | unsigned int regcount = mc->regcount; | |
3224 | unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE; | |
3225 | unsigned int regwmask = (1<<regwshift)-1; | |
3226 | unsigned int invert = mc->invert; | |
3227 | unsigned long mask = (1UL<<mc->nbits)-1; | |
4183eed2 KK |
3228 | long max = mc->max; |
3229 | long val = ucontrol->value.integer.value[0]; | |
3230 | unsigned int i, regval, regmask; | |
3231 | int err; | |
3232 | ||
3233 | if (invert) | |
3234 | val = max - val; | |
3235 | val &= mask; | |
3236 | for (i = 0; i < regcount; i++) { | |
3237 | regval = (val >> (regwshift*(regcount-i-1))) & regwmask; | |
3238 | regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; | |
3239 | err = snd_soc_update_bits_locked(codec, regbase+i, | |
3240 | regmask, regval); | |
3241 | if (err < 0) | |
3242 | return err; | |
3243 | } | |
3244 | ||
3245 | return 0; | |
3246 | } | |
3247 | EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); | |
3248 | ||
dd7b10b3 KK |
3249 | /** |
3250 | * snd_soc_get_strobe - strobe get callback | |
3251 | * @kcontrol: mixer control | |
3252 | * @ucontrol: control element information | |
3253 | * | |
3254 | * Callback get the value of a strobe mixer control. | |
3255 | * | |
3256 | * Returns 0 for success. | |
3257 | */ | |
3258 | int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, | |
3259 | struct snd_ctl_elem_value *ucontrol) | |
3260 | { | |
3261 | struct soc_mixer_control *mc = | |
3262 | (struct soc_mixer_control *)kcontrol->private_value; | |
3263 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3264 | unsigned int reg = mc->reg; | |
3265 | unsigned int shift = mc->shift; | |
3266 | unsigned int mask = 1 << shift; | |
3267 | unsigned int invert = mc->invert != 0; | |
3268 | unsigned int val = snd_soc_read(codec, reg) & mask; | |
3269 | ||
3270 | if (shift != 0 && val != 0) | |
3271 | val = val >> shift; | |
3272 | ucontrol->value.enumerated.item[0] = val ^ invert; | |
3273 | ||
3274 | return 0; | |
3275 | } | |
3276 | EXPORT_SYMBOL_GPL(snd_soc_get_strobe); | |
3277 | ||
3278 | /** | |
3279 | * snd_soc_put_strobe - strobe put callback | |
3280 | * @kcontrol: mixer control | |
3281 | * @ucontrol: control element information | |
3282 | * | |
3283 | * Callback strobe a register bit to high then low (or the inverse) | |
3284 | * in one pass of a single mixer enum control. | |
3285 | * | |
3286 | * Returns 1 for success. | |
3287 | */ | |
3288 | int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, | |
3289 | struct snd_ctl_elem_value *ucontrol) | |
3290 | { | |
3291 | struct soc_mixer_control *mc = | |
3292 | (struct soc_mixer_control *)kcontrol->private_value; | |
3293 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3294 | unsigned int reg = mc->reg; | |
3295 | unsigned int shift = mc->shift; | |
3296 | unsigned int mask = 1 << shift; | |
3297 | unsigned int invert = mc->invert != 0; | |
3298 | unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; | |
3299 | unsigned int val1 = (strobe ^ invert) ? mask : 0; | |
3300 | unsigned int val2 = (strobe ^ invert) ? 0 : mask; | |
3301 | int err; | |
3302 | ||
3303 | err = snd_soc_update_bits_locked(codec, reg, mask, val1); | |
3304 | if (err < 0) | |
3305 | return err; | |
3306 | ||
3307 | err = snd_soc_update_bits_locked(codec, reg, mask, val2); | |
3308 | return err; | |
3309 | } | |
3310 | EXPORT_SYMBOL_GPL(snd_soc_put_strobe); | |
3311 | ||
8c6529db LG |
3312 | /** |
3313 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3314 | * @dai: DAI | |
3315 | * @clk_id: DAI specific clock ID | |
3316 | * @freq: new clock frequency in Hz | |
3317 | * @dir: new clock direction - input/output. | |
3318 | * | |
3319 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3320 | */ | |
3321 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3322 | unsigned int freq, int dir) | |
3323 | { | |
f0fba2ad LG |
3324 | if (dai->driver && dai->driver->ops->set_sysclk) |
3325 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 3326 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 3327 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 3328 | freq, dir); |
8c6529db LG |
3329 | else |
3330 | return -EINVAL; | |
3331 | } | |
3332 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3333 | ||
ec4ee52a MB |
3334 | /** |
3335 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
3336 | * @codec: CODEC | |
3337 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 3338 | * @source: Source for the clock |
ec4ee52a MB |
3339 | * @freq: new clock frequency in Hz |
3340 | * @dir: new clock direction - input/output. | |
3341 | * | |
3342 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
3343 | */ | |
3344 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 3345 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
3346 | { |
3347 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
3348 | return codec->driver->set_sysclk(codec, clk_id, source, |
3349 | freq, dir); | |
ec4ee52a MB |
3350 | else |
3351 | return -EINVAL; | |
3352 | } | |
3353 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
3354 | ||
8c6529db LG |
3355 | /** |
3356 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3357 | * @dai: DAI | |
ac11a2b3 | 3358 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3359 | * @div: new clock divisor. |
3360 | * | |
3361 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3362 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3363 | * and frame clocks as low as possible to save system power. | |
3364 | */ | |
3365 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3366 | int div_id, int div) | |
3367 | { | |
f0fba2ad LG |
3368 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3369 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3370 | else |
3371 | return -EINVAL; | |
3372 | } | |
3373 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3374 | ||
3375 | /** | |
3376 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3377 | * @dai: DAI | |
3378 | * @pll_id: DAI specific PLL ID | |
85488037 | 3379 | * @source: DAI specific source for the PLL |
8c6529db LG |
3380 | * @freq_in: PLL input clock frequency in Hz |
3381 | * @freq_out: requested PLL output clock frequency in Hz | |
3382 | * | |
3383 | * Configures and enables PLL to generate output clock based on input clock. | |
3384 | */ | |
85488037 MB |
3385 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3386 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3387 | { |
f0fba2ad LG |
3388 | if (dai->driver && dai->driver->ops->set_pll) |
3389 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3390 | freq_in, freq_out); |
ec4ee52a MB |
3391 | else if (dai->codec && dai->codec->driver->set_pll) |
3392 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
3393 | freq_in, freq_out); | |
8c6529db LG |
3394 | else |
3395 | return -EINVAL; | |
3396 | } | |
3397 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3398 | ||
ec4ee52a MB |
3399 | /* |
3400 | * snd_soc_codec_set_pll - configure codec PLL. | |
3401 | * @codec: CODEC | |
3402 | * @pll_id: DAI specific PLL ID | |
3403 | * @source: DAI specific source for the PLL | |
3404 | * @freq_in: PLL input clock frequency in Hz | |
3405 | * @freq_out: requested PLL output clock frequency in Hz | |
3406 | * | |
3407 | * Configures and enables PLL to generate output clock based on input clock. | |
3408 | */ | |
3409 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
3410 | unsigned int freq_in, unsigned int freq_out) | |
3411 | { | |
3412 | if (codec->driver->set_pll) | |
3413 | return codec->driver->set_pll(codec, pll_id, source, | |
3414 | freq_in, freq_out); | |
3415 | else | |
3416 | return -EINVAL; | |
3417 | } | |
3418 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
3419 | ||
8c6529db LG |
3420 | /** |
3421 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3422 | * @dai: DAI | |
8c6529db LG |
3423 | * @fmt: SND_SOC_DAIFMT_ format value. |
3424 | * | |
3425 | * Configures the DAI hardware format and clocking. | |
3426 | */ | |
3427 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3428 | { | |
5e4ba569 | 3429 | if (dai->driver == NULL) |
8c6529db | 3430 | return -EINVAL; |
5e4ba569 SG |
3431 | if (dai->driver->ops->set_fmt == NULL) |
3432 | return -ENOTSUPP; | |
3433 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3434 | } |
3435 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3436 | ||
3437 | /** | |
3438 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3439 | * @dai: DAI | |
a5479e38 DR |
3440 | * @tx_mask: bitmask representing active TX slots. |
3441 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3442 | * @slots: Number of slots in use. |
a5479e38 | 3443 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3444 | * |
3445 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3446 | * specific. | |
3447 | */ | |
3448 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3449 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3450 | { |
f0fba2ad LG |
3451 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3452 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3453 | slots, slot_width); |
8c6529db LG |
3454 | else |
3455 | return -EINVAL; | |
3456 | } | |
3457 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3458 | ||
472df3cb BS |
3459 | /** |
3460 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3461 | * @dai: DAI | |
3462 | * @tx_num: how many TX channels | |
3463 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3464 | * 0~num-1 uses | |
3465 | * @rx_num: how many RX channels | |
3466 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3467 | * 0~num-1 uses | |
3468 | * | |
3469 | * configure the relationship between channel number and TDM slot number. | |
3470 | */ | |
3471 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3472 | unsigned int tx_num, unsigned int *tx_slot, | |
3473 | unsigned int rx_num, unsigned int *rx_slot) | |
3474 | { | |
f0fba2ad LG |
3475 | if (dai->driver && dai->driver->ops->set_channel_map) |
3476 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3477 | rx_num, rx_slot); |
3478 | else | |
3479 | return -EINVAL; | |
3480 | } | |
3481 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3482 | ||
8c6529db LG |
3483 | /** |
3484 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3485 | * @dai: DAI | |
3486 | * @tristate: tristate enable | |
3487 | * | |
3488 | * Tristates the DAI so that others can use it. | |
3489 | */ | |
3490 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3491 | { | |
f0fba2ad LG |
3492 | if (dai->driver && dai->driver->ops->set_tristate) |
3493 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3494 | else |
3495 | return -EINVAL; | |
3496 | } | |
3497 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3498 | ||
3499 | /** | |
3500 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3501 | * @dai: DAI | |
3502 | * @mute: mute enable | |
3503 | * | |
3504 | * Mutes the DAI DAC. | |
3505 | */ | |
3506 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3507 | { | |
f0fba2ad LG |
3508 | if (dai->driver && dai->driver->ops->digital_mute) |
3509 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db | 3510 | else |
04570c62 | 3511 | return -ENOTSUPP; |
8c6529db LG |
3512 | } |
3513 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3514 | ||
c5af3a2e MB |
3515 | /** |
3516 | * snd_soc_register_card - Register a card with the ASoC core | |
3517 | * | |
ac11a2b3 | 3518 | * @card: Card to register |
c5af3a2e | 3519 | * |
c5af3a2e | 3520 | */ |
70a7ca34 | 3521 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3522 | { |
b19e6e7b | 3523 | int i, ret; |
f0fba2ad | 3524 | |
c5af3a2e MB |
3525 | if (!card->name || !card->dev) |
3526 | return -EINVAL; | |
3527 | ||
5a504963 SW |
3528 | for (i = 0; i < card->num_links; i++) { |
3529 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
3530 | ||
3531 | /* | |
3532 | * Codec must be specified by 1 of name or OF node, | |
3533 | * not both or neither. | |
3534 | */ | |
3535 | if (!!link->codec_name == !!link->codec_of_node) { | |
3536 | dev_err(card->dev, | |
3b09bb82 LG |
3537 | "Neither/both codec name/of_node are set for %s\n", |
3538 | link->name); | |
5a504963 SW |
3539 | return -EINVAL; |
3540 | } | |
bc92657a SW |
3541 | /* Codec DAI name must be specified */ |
3542 | if (!link->codec_dai_name) { | |
3543 | dev_err(card->dev, "codec_dai_name not set for %s\n", | |
3544 | link->name); | |
3545 | return -EINVAL; | |
3546 | } | |
5a504963 SW |
3547 | |
3548 | /* | |
3549 | * Platform may be specified by either name or OF node, but | |
3550 | * can be left unspecified, and a dummy platform will be used. | |
3551 | */ | |
3552 | if (link->platform_name && link->platform_of_node) { | |
3553 | dev_err(card->dev, | |
3b09bb82 | 3554 | "Both platform name/of_node are set for %s\n", link->name); |
5a504963 SW |
3555 | return -EINVAL; |
3556 | } | |
3557 | ||
3558 | /* | |
bc92657a SW |
3559 | * CPU device may be specified by either name or OF node, but |
3560 | * can be left unspecified, and will be matched based on DAI | |
3561 | * name alone.. | |
3562 | */ | |
3563 | if (link->cpu_name && link->cpu_of_node) { | |
3564 | dev_err(card->dev, | |
3565 | "Neither/both cpu name/of_node are set for %s\n", | |
3566 | link->name); | |
3567 | return -EINVAL; | |
3568 | } | |
3569 | /* | |
3570 | * At least one of CPU DAI name or CPU device name/node must be | |
3571 | * specified | |
5a504963 | 3572 | */ |
bc92657a SW |
3573 | if (!link->cpu_dai_name && |
3574 | !(link->cpu_name || link->cpu_of_node)) { | |
5a504963 | 3575 | dev_err(card->dev, |
bc92657a | 3576 | "Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", |
3b09bb82 | 3577 | link->name); |
5a504963 SW |
3578 | return -EINVAL; |
3579 | } | |
3580 | } | |
3581 | ||
ed77cc12 MB |
3582 | dev_set_drvdata(card->dev, card); |
3583 | ||
111c6419 SW |
3584 | snd_soc_initialize_card_lists(card); |
3585 | ||
150dd2f8 VK |
3586 | soc_init_card_debugfs(card); |
3587 | ||
181a6892 MB |
3588 | card->rtd = devm_kzalloc(card->dev, |
3589 | sizeof(struct snd_soc_pcm_runtime) * | |
3590 | (card->num_links + card->num_aux_devs), | |
3591 | GFP_KERNEL); | |
f0fba2ad LG |
3592 | if (card->rtd == NULL) |
3593 | return -ENOMEM; | |
a7dbb603 | 3594 | card->num_rtd = 0; |
2eea392d | 3595 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3596 | |
3597 | for (i = 0; i < card->num_links; i++) | |
3598 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3599 | ||
c5af3a2e | 3600 | INIT_LIST_HEAD(&card->list); |
db432b41 | 3601 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 3602 | card->instantiated = 0; |
f0fba2ad | 3603 | mutex_init(&card->mutex); |
a73fb2df | 3604 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 3605 | |
b19e6e7b MB |
3606 | ret = snd_soc_instantiate_card(card); |
3607 | if (ret != 0) | |
3608 | soc_cleanup_card_debugfs(card); | |
c5af3a2e | 3609 | |
b19e6e7b | 3610 | return ret; |
c5af3a2e | 3611 | } |
70a7ca34 | 3612 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3613 | |
3614 | /** | |
3615 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3616 | * | |
ac11a2b3 | 3617 | * @card: Card to unregister |
c5af3a2e | 3618 | * |
c5af3a2e | 3619 | */ |
70a7ca34 | 3620 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3621 | { |
b0e26485 VK |
3622 | if (card->instantiated) |
3623 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3624 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3625 | ||
3626 | return 0; | |
3627 | } | |
70a7ca34 | 3628 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3629 | |
f0fba2ad LG |
3630 | /* |
3631 | * Simplify DAI link configuration by removing ".-1" from device names | |
3632 | * and sanitizing names. | |
3633 | */ | |
0b9a214a | 3634 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3635 | { |
3636 | char *found, name[NAME_SIZE]; | |
3637 | int id1, id2; | |
3638 | ||
3639 | if (dev_name(dev) == NULL) | |
3640 | return NULL; | |
3641 | ||
58818a77 | 3642 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3643 | |
3644 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3645 | found = strstr(name, dev->driver->name); | |
3646 | if (found) { | |
3647 | /* get ID */ | |
3648 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3649 | ||
3650 | /* discard ID from name if ID == -1 */ | |
3651 | if (*id == -1) | |
3652 | found[strlen(dev->driver->name)] = '\0'; | |
3653 | } | |
3654 | ||
3655 | } else { | |
3656 | /* I2C component devices are named "bus-addr" */ | |
3657 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3658 | char tmp[NAME_SIZE]; | |
3659 | ||
3660 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3661 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3662 | |
3663 | /* sanitize component name for DAI link creation */ | |
3664 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3665 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3666 | } else |
3667 | *id = 0; | |
3668 | } | |
3669 | ||
3670 | return kstrdup(name, GFP_KERNEL); | |
3671 | } | |
3672 | ||
3673 | /* | |
3674 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3675 | * any ".-1" and using the DAI name (instead of device name). | |
3676 | */ | |
3677 | static inline char *fmt_multiple_name(struct device *dev, | |
3678 | struct snd_soc_dai_driver *dai_drv) | |
3679 | { | |
3680 | if (dai_drv->name == NULL) { | |
0837fc62 | 3681 | pr_err("asoc: error - multiple DAI %s registered with no name\n", |
f0fba2ad LG |
3682 | dev_name(dev)); |
3683 | return NULL; | |
3684 | } | |
3685 | ||
3686 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3687 | } | |
3688 | ||
9115171a MB |
3689 | /** |
3690 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3691 | * | |
ac11a2b3 | 3692 | * @dai: DAI to register |
9115171a | 3693 | */ |
f0fba2ad LG |
3694 | int snd_soc_register_dai(struct device *dev, |
3695 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3696 | { |
054880fe | 3697 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3698 | struct snd_soc_dai *dai; |
3699 | ||
3700 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3701 | |
f0fba2ad LG |
3702 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3703 | if (dai == NULL) | |
a7393623 | 3704 | return -ENOMEM; |
9115171a | 3705 | |
f0fba2ad LG |
3706 | /* create DAI component name */ |
3707 | dai->name = fmt_single_name(dev, &dai->id); | |
3708 | if (dai->name == NULL) { | |
3709 | kfree(dai); | |
3710 | return -ENOMEM; | |
3711 | } | |
6335d055 | 3712 | |
f0fba2ad LG |
3713 | dai->dev = dev; |
3714 | dai->driver = dai_drv; | |
be09ad90 | 3715 | dai->dapm.dev = dev; |
f0fba2ad LG |
3716 | if (!dai->driver->ops) |
3717 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3718 | |
3719 | mutex_lock(&client_mutex); | |
054880fe MB |
3720 | |
3721 | list_for_each_entry(codec, &codec_list, list) { | |
3722 | if (codec->dev == dev) { | |
3723 | dev_dbg(dev, "Mapped DAI %s to CODEC %s\n", | |
3724 | dai->name, codec->name); | |
3725 | dai->codec = codec; | |
3726 | break; | |
3727 | } | |
3728 | } | |
3729 | ||
5f800080 PU |
3730 | if (!dai->codec) |
3731 | dai->dapm.idle_bias_off = 1; | |
3732 | ||
9115171a | 3733 | list_add(&dai->list, &dai_list); |
054880fe | 3734 | |
9115171a MB |
3735 | mutex_unlock(&client_mutex); |
3736 | ||
3737 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3738 | ||
3739 | return 0; | |
3740 | } | |
3741 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3742 | ||
3743 | /** | |
3744 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3745 | * | |
ac11a2b3 | 3746 | * @dai: DAI to unregister |
9115171a | 3747 | */ |
f0fba2ad | 3748 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3749 | { |
f0fba2ad LG |
3750 | struct snd_soc_dai *dai; |
3751 | ||
3752 | list_for_each_entry(dai, &dai_list, list) { | |
3753 | if (dev == dai->dev) | |
3754 | goto found; | |
3755 | } | |
3756 | return; | |
3757 | ||
3758 | found: | |
9115171a MB |
3759 | mutex_lock(&client_mutex); |
3760 | list_del(&dai->list); | |
3761 | mutex_unlock(&client_mutex); | |
3762 | ||
3763 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3764 | kfree(dai->name); |
3765 | kfree(dai); | |
9115171a MB |
3766 | } |
3767 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3768 | ||
3769 | /** | |
3770 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3771 | * | |
ac11a2b3 MB |
3772 | * @dai: Array of DAIs to register |
3773 | * @count: Number of DAIs | |
9115171a | 3774 | */ |
f0fba2ad LG |
3775 | int snd_soc_register_dais(struct device *dev, |
3776 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3777 | { |
054880fe | 3778 | struct snd_soc_codec *codec; |
f0fba2ad LG |
3779 | struct snd_soc_dai *dai; |
3780 | int i, ret = 0; | |
3781 | ||
720ffa4c | 3782 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3783 | |
3784 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3785 | |
3786 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3787 | if (dai == NULL) { |
3788 | ret = -ENOMEM; | |
3789 | goto err; | |
3790 | } | |
f0fba2ad LG |
3791 | |
3792 | /* create DAI component name */ | |
3793 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3794 | if (dai->name == NULL) { | |
3795 | kfree(dai); | |
3796 | ret = -EINVAL; | |
9115171a | 3797 | goto err; |
f0fba2ad LG |
3798 | } |
3799 | ||
3800 | dai->dev = dev; | |
f0fba2ad | 3801 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3802 | if (dai->driver->id) |
3803 | dai->id = dai->driver->id; | |
3804 | else | |
3805 | dai->id = i; | |
be09ad90 | 3806 | dai->dapm.dev = dev; |
f0fba2ad LG |
3807 | if (!dai->driver->ops) |
3808 | dai->driver->ops = &null_dai_ops; | |
3809 | ||
3810 | mutex_lock(&client_mutex); | |
054880fe MB |
3811 | |
3812 | list_for_each_entry(codec, &codec_list, list) { | |
3813 | if (codec->dev == dev) { | |
3814 | dev_dbg(dev, "Mapped DAI %s to CODEC %s\n", | |
3815 | dai->name, codec->name); | |
3816 | dai->codec = codec; | |
3817 | break; | |
3818 | } | |
3819 | } | |
3820 | ||
5f800080 PU |
3821 | if (!dai->codec) |
3822 | dai->dapm.idle_bias_off = 1; | |
3823 | ||
f0fba2ad | 3824 | list_add(&dai->list, &dai_list); |
054880fe | 3825 | |
f0fba2ad LG |
3826 | mutex_unlock(&client_mutex); |
3827 | ||
3828 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3829 | } |
3830 | ||
3831 | return 0; | |
3832 | ||
3833 | err: | |
3834 | for (i--; i >= 0; i--) | |
f0fba2ad | 3835 | snd_soc_unregister_dai(dev); |
9115171a MB |
3836 | |
3837 | return ret; | |
3838 | } | |
3839 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3840 | ||
3841 | /** | |
3842 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3843 | * | |
ac11a2b3 MB |
3844 | * @dai: Array of DAIs to unregister |
3845 | * @count: Number of DAIs | |
9115171a | 3846 | */ |
f0fba2ad | 3847 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3848 | { |
3849 | int i; | |
3850 | ||
3851 | for (i = 0; i < count; i++) | |
f0fba2ad | 3852 | snd_soc_unregister_dai(dev); |
9115171a MB |
3853 | } |
3854 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3855 | ||
12a48a8c MB |
3856 | /** |
3857 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3858 | * | |
ac11a2b3 | 3859 | * @platform: platform to register |
12a48a8c | 3860 | */ |
f0fba2ad LG |
3861 | int snd_soc_register_platform(struct device *dev, |
3862 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3863 | { |
f0fba2ad LG |
3864 | struct snd_soc_platform *platform; |
3865 | ||
3866 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3867 | ||
3868 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3869 | if (platform == NULL) | |
a7393623 | 3870 | return -ENOMEM; |
f0fba2ad LG |
3871 | |
3872 | /* create platform component name */ | |
3873 | platform->name = fmt_single_name(dev, &platform->id); | |
3874 | if (platform->name == NULL) { | |
3875 | kfree(platform); | |
3876 | return -ENOMEM; | |
3877 | } | |
12a48a8c | 3878 | |
f0fba2ad LG |
3879 | platform->dev = dev; |
3880 | platform->driver = platform_drv; | |
b7950641 LG |
3881 | platform->dapm.dev = dev; |
3882 | platform->dapm.platform = platform; | |
64a648c2 | 3883 | platform->dapm.stream_event = platform_drv->stream_event; |
cc22d37e | 3884 | mutex_init(&platform->mutex); |
12a48a8c MB |
3885 | |
3886 | mutex_lock(&client_mutex); | |
3887 | list_add(&platform->list, &platform_list); | |
3888 | mutex_unlock(&client_mutex); | |
3889 | ||
3890 | pr_debug("Registered platform '%s'\n", platform->name); | |
3891 | ||
3892 | return 0; | |
3893 | } | |
3894 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3895 | ||
3896 | /** | |
3897 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3898 | * | |
ac11a2b3 | 3899 | * @platform: platform to unregister |
12a48a8c | 3900 | */ |
f0fba2ad | 3901 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3902 | { |
f0fba2ad LG |
3903 | struct snd_soc_platform *platform; |
3904 | ||
3905 | list_for_each_entry(platform, &platform_list, list) { | |
3906 | if (dev == platform->dev) | |
3907 | goto found; | |
3908 | } | |
3909 | return; | |
3910 | ||
3911 | found: | |
12a48a8c MB |
3912 | mutex_lock(&client_mutex); |
3913 | list_del(&platform->list); | |
3914 | mutex_unlock(&client_mutex); | |
3915 | ||
3916 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3917 | kfree(platform->name); |
3918 | kfree(platform); | |
12a48a8c MB |
3919 | } |
3920 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3921 | ||
151ab22c MB |
3922 | static u64 codec_format_map[] = { |
3923 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3924 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3925 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3926 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3927 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3928 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3929 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3930 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3931 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3932 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3933 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3934 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3935 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3936 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3937 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3938 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3939 | }; | |
3940 | ||
3941 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3942 | * the endianness of the data but we're using the CPU format | |
3943 | * definitions which do need to include endianness so we ensure that | |
3944 | * codec DAIs always have both big and little endian variants set. | |
3945 | */ | |
3946 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3947 | { | |
3948 | int i; | |
3949 | ||
3950 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3951 | if (stream->formats & codec_format_map[i]) | |
3952 | stream->formats |= codec_format_map[i]; | |
3953 | } | |
3954 | ||
0d0cf00a MB |
3955 | /** |
3956 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3957 | * | |
ac11a2b3 | 3958 | * @codec: codec to register |
0d0cf00a | 3959 | */ |
f0fba2ad | 3960 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3961 | const struct snd_soc_codec_driver *codec_drv, |
3962 | struct snd_soc_dai_driver *dai_drv, | |
3963 | int num_dai) | |
0d0cf00a | 3964 | { |
3335ddca | 3965 | size_t reg_size; |
f0fba2ad LG |
3966 | struct snd_soc_codec *codec; |
3967 | int ret, i; | |
151ab22c | 3968 | |
f0fba2ad LG |
3969 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3970 | ||
3971 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3972 | if (codec == NULL) | |
3973 | return -ENOMEM; | |
0d0cf00a | 3974 | |
f0fba2ad LG |
3975 | /* create CODEC component name */ |
3976 | codec->name = fmt_single_name(dev, &codec->id); | |
3977 | if (codec->name == NULL) { | |
3978 | kfree(codec); | |
3979 | return -ENOMEM; | |
3980 | } | |
3981 | ||
23bbce34 DP |
3982 | if (codec_drv->compress_type) |
3983 | codec->compress_type = codec_drv->compress_type; | |
3984 | else | |
3985 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3986 | ||
c3acec26 MB |
3987 | codec->write = codec_drv->write; |
3988 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3989 | codec->volatile_register = codec_drv->volatile_register; |
3990 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3991 | codec->writable_register = codec_drv->writable_register; |
5124e69e | 3992 | codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
ce6120cc LG |
3993 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3994 | codec->dapm.dev = dev; | |
3995 | codec->dapm.codec = codec; | |
474b62d6 | 3996 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3997 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3998 | codec->dev = dev; |
3999 | codec->driver = codec_drv; | |
4000 | codec->num_dai = num_dai; | |
4001 | mutex_init(&codec->mutex); | |
ce6120cc | 4002 | |
f0fba2ad LG |
4003 | /* allocate CODEC register cache */ |
4004 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 4005 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 4006 | codec->reg_size = reg_size; |
3335ddca DP |
4007 | /* it is necessary to make a copy of the default register cache |
4008 | * because in the case of using a compression type that requires | |
4009 | * the default register cache to be marked as __devinitconst the | |
4010 | * kernel might have freed the array by the time we initialize | |
4011 | * the cache. | |
4012 | */ | |
2aa86323 DP |
4013 | if (codec_drv->reg_cache_default) { |
4014 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
4015 | reg_size, GFP_KERNEL); | |
4016 | if (!codec->reg_def_copy) { | |
4017 | ret = -ENOMEM; | |
4018 | goto fail; | |
4019 | } | |
f0fba2ad | 4020 | } |
151ab22c MB |
4021 | } |
4022 | ||
1500b7b5 DP |
4023 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
4024 | if (!codec->volatile_register) | |
4025 | codec->volatile_register = snd_soc_default_volatile_register; | |
4026 | if (!codec->readable_register) | |
4027 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
4028 | if (!codec->writable_register) |
4029 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
4030 | } |
4031 | ||
f0fba2ad LG |
4032 | for (i = 0; i < num_dai; i++) { |
4033 | fixup_codec_formats(&dai_drv[i].playback); | |
4034 | fixup_codec_formats(&dai_drv[i].capture); | |
4035 | } | |
4036 | ||
054880fe MB |
4037 | mutex_lock(&client_mutex); |
4038 | list_add(&codec->list, &codec_list); | |
4039 | mutex_unlock(&client_mutex); | |
4040 | ||
26b01ccd MB |
4041 | /* register any DAIs */ |
4042 | if (num_dai) { | |
4043 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
4044 | if (ret < 0) | |
054880fe MB |
4045 | dev_err(codec->dev, "Failed to regster DAIs: %d\n", |
4046 | ret); | |
26b01ccd | 4047 | } |
f0fba2ad | 4048 | |
0d0cf00a | 4049 | pr_debug("Registered codec '%s'\n", codec->name); |
0d0cf00a | 4050 | return 0; |
f0fba2ad | 4051 | |
fdf0f54d | 4052 | fail: |
f0fba2ad LG |
4053 | kfree(codec->name); |
4054 | kfree(codec); | |
4055 | return ret; | |
0d0cf00a MB |
4056 | } |
4057 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
4058 | ||
4059 | /** | |
4060 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
4061 | * | |
ac11a2b3 | 4062 | * @codec: codec to unregister |
0d0cf00a | 4063 | */ |
f0fba2ad | 4064 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 4065 | { |
f0fba2ad LG |
4066 | struct snd_soc_codec *codec; |
4067 | int i; | |
4068 | ||
4069 | list_for_each_entry(codec, &codec_list, list) { | |
4070 | if (dev == codec->dev) | |
4071 | goto found; | |
4072 | } | |
4073 | return; | |
4074 | ||
4075 | found: | |
26b01ccd MB |
4076 | if (codec->num_dai) |
4077 | for (i = 0; i < codec->num_dai; i++) | |
4078 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 4079 | |
0d0cf00a MB |
4080 | mutex_lock(&client_mutex); |
4081 | list_del(&codec->list); | |
4082 | mutex_unlock(&client_mutex); | |
4083 | ||
4084 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 4085 | |
7a30a3db | 4086 | snd_soc_cache_exit(codec); |
3335ddca | 4087 | kfree(codec->reg_def_copy); |
1aafcd4d | 4088 | kfree(codec->name); |
f0fba2ad | 4089 | kfree(codec); |
0d0cf00a MB |
4090 | } |
4091 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
4092 | ||
bec4fa05 SW |
4093 | /* Retrieve a card's name from device tree */ |
4094 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
4095 | const char *propname) | |
4096 | { | |
4097 | struct device_node *np = card->dev->of_node; | |
4098 | int ret; | |
4099 | ||
4100 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
4101 | /* | |
4102 | * EINVAL means the property does not exist. This is fine providing | |
4103 | * card->name was previously set, which is checked later in | |
4104 | * snd_soc_register_card. | |
4105 | */ | |
4106 | if (ret < 0 && ret != -EINVAL) { | |
4107 | dev_err(card->dev, | |
4108 | "Property '%s' could not be read: %d\n", | |
4109 | propname, ret); | |
4110 | return ret; | |
4111 | } | |
4112 | ||
4113 | return 0; | |
4114 | } | |
4115 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
4116 | ||
a4a54dd5 SW |
4117 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
4118 | const char *propname) | |
4119 | { | |
4120 | struct device_node *np = card->dev->of_node; | |
4121 | int num_routes; | |
4122 | struct snd_soc_dapm_route *routes; | |
4123 | int i, ret; | |
4124 | ||
4125 | num_routes = of_property_count_strings(np, propname); | |
c34ce320 | 4126 | if (num_routes < 0 || num_routes & 1) { |
a4a54dd5 | 4127 | dev_err(card->dev, |
c34ce320 RZ |
4128 | "Property '%s' does not exist or its length is not even\n", |
4129 | propname); | |
a4a54dd5 SW |
4130 | return -EINVAL; |
4131 | } | |
4132 | num_routes /= 2; | |
4133 | if (!num_routes) { | |
4134 | dev_err(card->dev, | |
4135 | "Property '%s's length is zero\n", | |
4136 | propname); | |
4137 | return -EINVAL; | |
4138 | } | |
4139 | ||
4140 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
4141 | GFP_KERNEL); | |
4142 | if (!routes) { | |
4143 | dev_err(card->dev, | |
4144 | "Could not allocate DAPM route table\n"); | |
4145 | return -EINVAL; | |
4146 | } | |
4147 | ||
4148 | for (i = 0; i < num_routes; i++) { | |
4149 | ret = of_property_read_string_index(np, propname, | |
4150 | 2 * i, &routes[i].sink); | |
4151 | if (ret) { | |
4152 | dev_err(card->dev, | |
4153 | "Property '%s' index %d could not be read: %d\n", | |
4154 | propname, 2 * i, ret); | |
b761c0ca | 4155 | kfree(routes); |
a4a54dd5 SW |
4156 | return -EINVAL; |
4157 | } | |
4158 | ret = of_property_read_string_index(np, propname, | |
4159 | (2 * i) + 1, &routes[i].source); | |
4160 | if (ret) { | |
4161 | dev_err(card->dev, | |
4162 | "Property '%s' index %d could not be read: %d\n", | |
4163 | propname, (2 * i) + 1, ret); | |
b761c0ca | 4164 | kfree(routes); |
a4a54dd5 SW |
4165 | return -EINVAL; |
4166 | } | |
4167 | } | |
4168 | ||
4169 | card->num_dapm_routes = num_routes; | |
4170 | card->dapm_routes = routes; | |
4171 | ||
4172 | return 0; | |
4173 | } | |
4174 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
4175 | ||
c9b3a40f | 4176 | static int __init snd_soc_init(void) |
db2a4165 | 4177 | { |
384c89e2 | 4178 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
4179 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
4180 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 4181 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 4182 | snd_soc_debugfs_root = NULL; |
384c89e2 | 4183 | } |
c3c5a19a | 4184 | |
8a9dab1a | 4185 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
4186 | &codec_list_fops)) |
4187 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
4188 | ||
8a9dab1a | 4189 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
4190 | &dai_list_fops)) |
4191 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 4192 | |
8a9dab1a | 4193 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
4194 | &platform_list_fops)) |
4195 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
4196 | #endif |
4197 | ||
fb257897 MB |
4198 | snd_soc_util_init(); |
4199 | ||
db2a4165 FM |
4200 | return platform_driver_register(&soc_driver); |
4201 | } | |
4abe8e16 | 4202 | module_init(snd_soc_init); |
db2a4165 | 4203 | |
7d8c16a6 | 4204 | static void __exit snd_soc_exit(void) |
db2a4165 | 4205 | { |
fb257897 MB |
4206 | snd_soc_util_exit(); |
4207 | ||
384c89e2 | 4208 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 4209 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 4210 | #endif |
3ff3f64b | 4211 | platform_driver_unregister(&soc_driver); |
db2a4165 | 4212 | } |
db2a4165 FM |
4213 | module_exit(snd_soc_exit); |
4214 | ||
4215 | /* Module information */ | |
d331124d | 4216 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
4217 | MODULE_DESCRIPTION("ALSA SoC Core"); |
4218 | MODULE_LICENSE("GPL"); | |
8b45a209 | 4219 | MODULE_ALIAS("platform:soc-audio"); |