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> | |
db2a4165 FM |
42 | #include <sound/initval.h> |
43 | ||
a8b1d34f MB |
44 | #define CREATE_TRACE_POINTS |
45 | #include <trace/events/asoc.h> | |
46 | ||
f0fba2ad LG |
47 | #define NAME_SIZE 32 |
48 | ||
db2a4165 FM |
49 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
50 | ||
384c89e2 | 51 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
52 | struct dentry *snd_soc_debugfs_root; |
53 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
54 | #endif |
55 | ||
c5af3a2e MB |
56 | static DEFINE_MUTEX(client_mutex); |
57 | static LIST_HEAD(card_list); | |
9115171a | 58 | static LIST_HEAD(dai_list); |
12a48a8c | 59 | static LIST_HEAD(platform_list); |
0d0cf00a | 60 | static LIST_HEAD(codec_list); |
c5af3a2e | 61 | |
db2a4165 FM |
62 | /* |
63 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
64 | * It can be used to eliminate pops between different playback streams, e.g. | |
65 | * between two audio tracks. | |
66 | */ | |
67 | static int pmdown_time = 5000; | |
68 | module_param(pmdown_time, int, 0); | |
69 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
70 | ||
2bc9a81e DP |
71 | /* returns the minimum number of bytes needed to represent |
72 | * a particular given value */ | |
73 | static int min_bytes_needed(unsigned long val) | |
74 | { | |
75 | int c = 0; | |
76 | int i; | |
77 | ||
78 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
79 | if (val & (1UL << i)) | |
80 | break; | |
81 | c = (sizeof val * 8) - c; | |
82 | if (!c || (c % 8)) | |
83 | c = (c + 8) / 8; | |
84 | else | |
85 | c /= 8; | |
86 | return c; | |
87 | } | |
88 | ||
13fd179f DP |
89 | /* fill buf which is 'len' bytes with a formatted |
90 | * string of the form 'reg: value\n' */ | |
91 | static int format_register_str(struct snd_soc_codec *codec, | |
92 | unsigned int reg, char *buf, size_t len) | |
93 | { | |
00b317a4 SW |
94 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
95 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
96 | int ret; |
97 | char tmpbuf[len + 1]; | |
98 | char regbuf[regsize + 1]; | |
99 | ||
100 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
101 | * try to abuse this function */ | |
102 | WARN_ON(len > 63); | |
103 | ||
104 | /* +2 for ': ' and + 1 for '\n' */ | |
105 | if (wordsize + regsize + 2 + 1 != len) | |
106 | return -EINVAL; | |
107 | ||
25032c11 | 108 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
109 | if (ret < 0) { |
110 | memset(regbuf, 'X', regsize); | |
111 | regbuf[regsize] = '\0'; | |
112 | } else { | |
113 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
114 | } | |
115 | ||
116 | /* prepare the buffer */ | |
117 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
118 | /* copy it back to the caller without the '\0' */ | |
119 | memcpy(buf, tmpbuf, len); | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
2624d5fa | 124 | /* codec register dump */ |
13fd179f DP |
125 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
126 | size_t count, loff_t pos) | |
2624d5fa | 127 | { |
13fd179f | 128 | int i, step = 1; |
2bc9a81e | 129 | int wordsize, regsize; |
13fd179f DP |
130 | int len; |
131 | size_t total = 0; | |
132 | loff_t p = 0; | |
2bc9a81e | 133 | |
00b317a4 SW |
134 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
135 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 136 | |
13fd179f DP |
137 | len = wordsize + regsize + 2 + 1; |
138 | ||
f0fba2ad | 139 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
140 | return 0; |
141 | ||
f0fba2ad LG |
142 | if (codec->driver->reg_cache_step) |
143 | step = codec->driver->reg_cache_step; | |
2624d5fa | 144 | |
f0fba2ad | 145 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
b92d150b | 146 | if (!snd_soc_codec_readable_register(codec, i)) |
2624d5fa | 147 | continue; |
f0fba2ad LG |
148 | if (codec->driver->display_register) { |
149 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 150 | PAGE_SIZE - count, i); |
5164d74d | 151 | } else { |
13fd179f DP |
152 | /* only support larger than PAGE_SIZE bytes debugfs |
153 | * entries for the default case */ | |
154 | if (p >= pos) { | |
155 | if (total + len >= count - 1) | |
156 | break; | |
157 | format_register_str(codec, i, buf + total, len); | |
158 | total += len; | |
159 | } | |
160 | p += len; | |
5164d74d | 161 | } |
2624d5fa MB |
162 | } |
163 | ||
13fd179f | 164 | total = min(total, count - 1); |
2624d5fa | 165 | |
13fd179f | 166 | return total; |
2624d5fa | 167 | } |
13fd179f | 168 | |
2624d5fa MB |
169 | static ssize_t codec_reg_show(struct device *dev, |
170 | struct device_attribute *attr, char *buf) | |
171 | { | |
36ae1a96 | 172 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 173 | |
13fd179f | 174 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
175 | } |
176 | ||
177 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
178 | ||
dbe21408 MB |
179 | static ssize_t pmdown_time_show(struct device *dev, |
180 | struct device_attribute *attr, char *buf) | |
181 | { | |
36ae1a96 | 182 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 183 | |
f0fba2ad | 184 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
185 | } |
186 | ||
187 | static ssize_t pmdown_time_set(struct device *dev, | |
188 | struct device_attribute *attr, | |
189 | const char *buf, size_t count) | |
190 | { | |
36ae1a96 | 191 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 192 | int ret; |
dbe21408 | 193 | |
c593b520 MB |
194 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
195 | if (ret) | |
196 | return ret; | |
dbe21408 MB |
197 | |
198 | return count; | |
199 | } | |
200 | ||
201 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
202 | ||
2624d5fa | 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 | ||
db2a4165 FM |
468 | #ifdef CONFIG_SND_SOC_AC97_BUS |
469 | /* unregister ac97 codec */ | |
470 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
471 | { | |
472 | if (codec->ac97->dev.bus) | |
473 | device_unregister(&codec->ac97->dev); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | /* stop no dev release warning */ | |
478 | static void soc_ac97_device_release(struct device *dev){} | |
479 | ||
480 | /* register ac97 codec to bus */ | |
481 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
482 | { | |
483 | int err; | |
484 | ||
485 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 486 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
487 | codec->ac97->dev.release = soc_ac97_device_release; |
488 | ||
bb072bf0 | 489 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 490 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
491 | err = device_register(&codec->ac97->dev); |
492 | if (err < 0) { | |
493 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
494 | codec->ac97->dev.bus = NULL; | |
495 | return err; | |
496 | } | |
497 | return 0; | |
498 | } | |
499 | #endif | |
500 | ||
6f8ab4ac | 501 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 502 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 503 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 504 | { |
6f8ab4ac | 505 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 506 | struct snd_soc_codec *codec; |
db2a4165 FM |
507 | int i; |
508 | ||
e3509ff0 DM |
509 | /* If the initialization of this soc device failed, there is no codec |
510 | * associated with it. Just bail out in this case. | |
511 | */ | |
f0fba2ad | 512 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
513 | return 0; |
514 | ||
6ed25978 AG |
515 | /* Due to the resume being scheduled into a workqueue we could |
516 | * suspend before that's finished - wait for it to complete. | |
517 | */ | |
f0fba2ad LG |
518 | snd_power_lock(card->snd_card); |
519 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
520 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
521 | |
522 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 523 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 524 | |
a00f90f9 | 525 | /* mute any active DACs */ |
f0fba2ad LG |
526 | for (i = 0; i < card->num_rtd; i++) { |
527 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
528 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 529 | |
f0fba2ad | 530 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
531 | continue; |
532 | ||
f0fba2ad LG |
533 | if (drv->ops->digital_mute && dai->playback_active) |
534 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
535 | } |
536 | ||
4ccab3e7 | 537 | /* suspend all pcms */ |
f0fba2ad LG |
538 | for (i = 0; i < card->num_rtd; i++) { |
539 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
540 | continue; |
541 | ||
f0fba2ad | 542 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 543 | } |
4ccab3e7 | 544 | |
87506549 | 545 | if (card->suspend_pre) |
70b2ac12 | 546 | card->suspend_pre(card); |
db2a4165 | 547 | |
f0fba2ad LG |
548 | for (i = 0; i < card->num_rtd; i++) { |
549 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
550 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 551 | |
f0fba2ad | 552 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
553 | continue; |
554 | ||
f0fba2ad LG |
555 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
556 | cpu_dai->driver->suspend(cpu_dai); | |
557 | if (platform->driver->suspend && !platform->suspended) { | |
558 | platform->driver->suspend(cpu_dai); | |
559 | platform->suspended = 1; | |
560 | } | |
db2a4165 FM |
561 | } |
562 | ||
563 | /* close any waiting streams and save state */ | |
f0fba2ad | 564 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 565 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 566 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 567 | } |
db2a4165 | 568 | |
f0fba2ad | 569 | for (i = 0; i < card->num_rtd; i++) { |
7bd3a6f3 | 570 | struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai; |
3efab7dc | 571 | |
f0fba2ad | 572 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
573 | continue; |
574 | ||
7bd3a6f3 MB |
575 | snd_soc_dapm_stream_event(&card->rtd[i], |
576 | SNDRV_PCM_STREAM_PLAYBACK, | |
577 | codec_dai, | |
578 | SND_SOC_DAPM_STREAM_SUSPEND); | |
f0fba2ad | 579 | |
7bd3a6f3 MB |
580 | snd_soc_dapm_stream_event(&card->rtd[i], |
581 | SNDRV_PCM_STREAM_CAPTURE, | |
582 | codec_dai, | |
583 | SND_SOC_DAPM_STREAM_SUSPEND); | |
db2a4165 FM |
584 | } |
585 | ||
f0fba2ad | 586 | /* suspend all CODECs */ |
2eea392d | 587 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
588 | /* If there are paths active then the CODEC will be held with |
589 | * bias _ON and should not be suspended. */ | |
590 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 591 | switch (codec->dapm.bias_level) { |
f0fba2ad | 592 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
593 | /* |
594 | * If the CODEC is capable of idle | |
595 | * bias off then being in STANDBY | |
596 | * means it's doing something, | |
597 | * otherwise fall through. | |
598 | */ | |
599 | if (codec->dapm.idle_bias_off) { | |
600 | dev_dbg(codec->dev, | |
601 | "idle_bias_off CODEC on over suspend\n"); | |
602 | break; | |
603 | } | |
f0fba2ad | 604 | case SND_SOC_BIAS_OFF: |
84b315ee | 605 | codec->driver->suspend(codec); |
f0fba2ad | 606 | codec->suspended = 1; |
7be4ba24 | 607 | codec->cache_sync = 1; |
f0fba2ad LG |
608 | break; |
609 | default: | |
610 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
611 | break; | |
612 | } | |
1547aba9 MB |
613 | } |
614 | } | |
db2a4165 | 615 | |
f0fba2ad LG |
616 | for (i = 0; i < card->num_rtd; i++) { |
617 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 618 | |
f0fba2ad | 619 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
620 | continue; |
621 | ||
f0fba2ad LG |
622 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
623 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
624 | } |
625 | ||
87506549 | 626 | if (card->suspend_post) |
70b2ac12 | 627 | card->suspend_post(card); |
db2a4165 FM |
628 | |
629 | return 0; | |
630 | } | |
6f8ab4ac | 631 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 632 | |
6ed25978 AG |
633 | /* deferred resume work, so resume can complete before we finished |
634 | * setting our codec back up, which can be very slow on I2C | |
635 | */ | |
636 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 637 | { |
f0fba2ad LG |
638 | struct snd_soc_card *card = |
639 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 640 | struct snd_soc_codec *codec; |
db2a4165 FM |
641 | int i; |
642 | ||
6ed25978 AG |
643 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
644 | * so userspace apps are blocked from touching us | |
645 | */ | |
646 | ||
f0fba2ad | 647 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 648 | |
9949788b | 649 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 650 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 651 | |
87506549 | 652 | if (card->resume_pre) |
70b2ac12 | 653 | card->resume_pre(card); |
db2a4165 | 654 | |
f0fba2ad LG |
655 | /* resume AC97 DAIs */ |
656 | for (i = 0; i < card->num_rtd; i++) { | |
657 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 658 | |
f0fba2ad | 659 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
660 | continue; |
661 | ||
f0fba2ad LG |
662 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
663 | cpu_dai->driver->resume(cpu_dai); | |
664 | } | |
665 | ||
2eea392d | 666 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
667 | /* If the CODEC was idle over suspend then it will have been |
668 | * left with bias OFF or STANDBY and suspended so we must now | |
669 | * resume. Otherwise the suspend was suppressed. | |
670 | */ | |
671 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 672 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
673 | case SND_SOC_BIAS_STANDBY: |
674 | case SND_SOC_BIAS_OFF: | |
675 | codec->driver->resume(codec); | |
676 | codec->suspended = 0; | |
677 | break; | |
678 | default: | |
679 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
680 | break; | |
681 | } | |
1547aba9 MB |
682 | } |
683 | } | |
db2a4165 | 684 | |
f0fba2ad | 685 | for (i = 0; i < card->num_rtd; i++) { |
7bd3a6f3 | 686 | struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai; |
3efab7dc | 687 | |
f0fba2ad | 688 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
689 | continue; |
690 | ||
7bd3a6f3 MB |
691 | snd_soc_dapm_stream_event(&card->rtd[i], |
692 | SNDRV_PCM_STREAM_PLAYBACK, codec_dai, | |
693 | SND_SOC_DAPM_STREAM_RESUME); | |
f0fba2ad | 694 | |
7bd3a6f3 MB |
695 | snd_soc_dapm_stream_event(&card->rtd[i], |
696 | SNDRV_PCM_STREAM_CAPTURE, codec_dai, | |
697 | SND_SOC_DAPM_STREAM_RESUME); | |
db2a4165 FM |
698 | } |
699 | ||
3ff3f64b | 700 | /* unmute any active DACs */ |
f0fba2ad LG |
701 | for (i = 0; i < card->num_rtd; i++) { |
702 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
703 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 704 | |
f0fba2ad | 705 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
706 | continue; |
707 | ||
f0fba2ad LG |
708 | if (drv->ops->digital_mute && dai->playback_active) |
709 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
710 | } |
711 | ||
f0fba2ad LG |
712 | for (i = 0; i < card->num_rtd; i++) { |
713 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
714 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 715 | |
f0fba2ad | 716 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
717 | continue; |
718 | ||
f0fba2ad LG |
719 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
720 | cpu_dai->driver->resume(cpu_dai); | |
721 | if (platform->driver->resume && platform->suspended) { | |
722 | platform->driver->resume(cpu_dai); | |
723 | platform->suspended = 0; | |
724 | } | |
db2a4165 FM |
725 | } |
726 | ||
87506549 | 727 | if (card->resume_post) |
70b2ac12 | 728 | card->resume_post(card); |
db2a4165 | 729 | |
f0fba2ad | 730 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
731 | |
732 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 733 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
734 | } |
735 | ||
736 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 737 | int snd_soc_resume(struct device *dev) |
6ed25978 | 738 | { |
6f8ab4ac | 739 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 740 | int i, ac97_control = 0; |
b9dd94a8 | 741 | |
5ff1ddf2 EM |
742 | /* If the initialization of this soc device failed, there is no codec |
743 | * associated with it. Just bail out in this case. | |
744 | */ | |
745 | if (list_empty(&card->codec_dev_list)) | |
746 | return 0; | |
747 | ||
64ab9baa MB |
748 | /* AC97 devices might have other drivers hanging off them so |
749 | * need to resume immediately. Other drivers don't have that | |
750 | * problem and may take a substantial amount of time to resume | |
751 | * due to I/O costs and anti-pop so handle them out of line. | |
752 | */ | |
f0fba2ad LG |
753 | for (i = 0; i < card->num_rtd; i++) { |
754 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
755 | ac97_control |= cpu_dai->driver->ac97_control; |
756 | } | |
757 | if (ac97_control) { | |
758 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
759 | soc_resume_deferred(&card->deferred_resume_work); | |
760 | } else { | |
761 | dev_dbg(dev, "Scheduling resume work\n"); | |
762 | if (!schedule_work(&card->deferred_resume_work)) | |
763 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 764 | } |
6ed25978 | 765 | |
db2a4165 FM |
766 | return 0; |
767 | } | |
6f8ab4ac | 768 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 769 | #else |
6f8ab4ac MB |
770 | #define snd_soc_suspend NULL |
771 | #define snd_soc_resume NULL | |
db2a4165 FM |
772 | #endif |
773 | ||
85e7652d | 774 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
775 | }; |
776 | ||
f0fba2ad | 777 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 778 | { |
f0fba2ad LG |
779 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
780 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 781 | struct snd_soc_codec *codec; |
435c5e25 | 782 | struct snd_soc_platform *platform; |
f0fba2ad | 783 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 784 | const char *platform_name; |
435c5e25 | 785 | |
f0fba2ad LG |
786 | if (rtd->complete) |
787 | return 1; | |
788 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 789 | |
f0fba2ad LG |
790 | /* do we already have the CPU DAI for this link ? */ |
791 | if (rtd->cpu_dai) { | |
792 | goto find_codec; | |
793 | } | |
794 | /* no, then find CPU DAI from registered DAIs*/ | |
795 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
5a504963 SW |
796 | if (dai_link->cpu_dai_of_node) { |
797 | if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node) | |
798 | continue; | |
799 | } else { | |
800 | if (strcmp(cpu_dai->name, dai_link->cpu_dai_name)) | |
801 | continue; | |
802 | } | |
2610ab77 SW |
803 | |
804 | rtd->cpu_dai = cpu_dai; | |
805 | goto find_codec; | |
435c5e25 | 806 | } |
f0fba2ad LG |
807 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
808 | dai_link->cpu_dai_name); | |
6308419a | 809 | |
f0fba2ad LG |
810 | find_codec: |
811 | /* do we already have the CODEC for this link ? */ | |
812 | if (rtd->codec) { | |
813 | goto find_platform; | |
814 | } | |
815 | ||
816 | /* no, then find CODEC from registered CODECs*/ | |
817 | list_for_each_entry(codec, &codec_list, list) { | |
5a504963 SW |
818 | if (dai_link->codec_of_node) { |
819 | if (codec->dev->of_node != dai_link->codec_of_node) | |
820 | continue; | |
821 | } else { | |
822 | if (strcmp(codec->name, dai_link->codec_name)) | |
823 | continue; | |
824 | } | |
2610ab77 SW |
825 | |
826 | rtd->codec = codec; | |
827 | ||
828 | /* | |
829 | * CODEC found, so find CODEC DAI from registered DAIs from | |
830 | * this CODEC | |
831 | */ | |
832 | list_for_each_entry(codec_dai, &dai_list, list) { | |
833 | if (codec->dev == codec_dai->dev && | |
834 | !strcmp(codec_dai->name, | |
835 | dai_link->codec_dai_name)) { | |
f0fba2ad | 836 | |
2610ab77 SW |
837 | rtd->codec_dai = codec_dai; |
838 | goto find_platform; | |
839 | } | |
435c5e25 | 840 | } |
2610ab77 SW |
841 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
842 | dai_link->codec_dai_name); | |
843 | ||
844 | goto find_platform; | |
f0fba2ad LG |
845 | } |
846 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
847 | dai_link->codec_name); | |
6b05eda6 | 848 | |
f0fba2ad | 849 | find_platform: |
848dd8be MB |
850 | /* do we need a platform? */ |
851 | if (rtd->platform) | |
f0fba2ad | 852 | goto out; |
848dd8be MB |
853 | |
854 | /* if there's no platform we match on the empty platform */ | |
855 | platform_name = dai_link->platform_name; | |
5a504963 | 856 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
857 | platform_name = "snd-soc-dummy"; |
858 | ||
859 | /* no, then find one from the set of registered platforms */ | |
f0fba2ad | 860 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
861 | if (dai_link->platform_of_node) { |
862 | if (platform->dev->of_node != | |
863 | dai_link->platform_of_node) | |
864 | continue; | |
865 | } else { | |
866 | if (strcmp(platform->name, platform_name)) | |
867 | continue; | |
868 | } | |
2610ab77 SW |
869 | |
870 | rtd->platform = platform; | |
871 | goto out; | |
02a06d30 BS |
872 | } |
873 | ||
f0fba2ad LG |
874 | dev_dbg(card->dev, "platform %s not registered\n", |
875 | dai_link->platform_name); | |
876 | return 0; | |
877 | ||
878 | out: | |
879 | /* mark rtd as complete if we found all 4 of our client devices */ | |
880 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
881 | rtd->complete = 1; | |
882 | card->num_rtd++; | |
883 | } | |
884 | return 1; | |
885 | } | |
886 | ||
589c3563 JN |
887 | static void soc_remove_codec(struct snd_soc_codec *codec) |
888 | { | |
889 | int err; | |
890 | ||
891 | if (codec->driver->remove) { | |
892 | err = codec->driver->remove(codec); | |
893 | if (err < 0) | |
894 | dev_err(codec->dev, | |
895 | "asoc: failed to remove %s: %d\n", | |
896 | codec->name, err); | |
897 | } | |
898 | ||
899 | /* Make sure all DAPM widgets are freed */ | |
900 | snd_soc_dapm_free(&codec->dapm); | |
901 | ||
902 | soc_cleanup_codec_debugfs(codec); | |
903 | codec->probed = 0; | |
904 | list_del(&codec->card_list); | |
905 | module_put(codec->dev->driver->owner); | |
906 | } | |
907 | ||
0168bf0d | 908 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
909 | { |
910 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
911 | struct snd_soc_codec *codec = rtd->codec; | |
912 | struct snd_soc_platform *platform = rtd->platform; | |
913 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
914 | int err; | |
915 | ||
916 | /* unregister the rtd device */ | |
917 | if (rtd->dev_registered) { | |
36ae1a96 MB |
918 | device_remove_file(rtd->dev, &dev_attr_pmdown_time); |
919 | device_remove_file(rtd->dev, &dev_attr_codec_reg); | |
920 | device_unregister(rtd->dev); | |
f0fba2ad LG |
921 | rtd->dev_registered = 0; |
922 | } | |
923 | ||
924 | /* remove the CODEC DAI */ | |
0168bf0d LG |
925 | if (codec_dai && codec_dai->probed && |
926 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
927 | if (codec_dai->driver->remove) { |
928 | err = codec_dai->driver->remove(codec_dai); | |
929 | if (err < 0) | |
0837fc62 FE |
930 | pr_err("asoc: failed to remove %s: %d\n", |
931 | codec_dai->name, err); | |
6b05eda6 | 932 | } |
f0fba2ad LG |
933 | codec_dai->probed = 0; |
934 | list_del(&codec_dai->card_list); | |
935 | } | |
6b05eda6 | 936 | |
f0fba2ad | 937 | /* remove the platform */ |
0168bf0d LG |
938 | if (platform && platform->probed && |
939 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
940 | if (platform->driver->remove) { |
941 | err = platform->driver->remove(platform); | |
942 | if (err < 0) | |
0837fc62 FE |
943 | pr_err("asoc: failed to remove %s: %d\n", |
944 | platform->name, err); | |
f0fba2ad | 945 | } |
675c496b LG |
946 | |
947 | /* Make sure all DAPM widgets are freed */ | |
948 | snd_soc_dapm_free(&platform->dapm); | |
949 | ||
731f1ab2 | 950 | soc_cleanup_platform_debugfs(platform); |
f0fba2ad LG |
951 | platform->probed = 0; |
952 | list_del(&platform->card_list); | |
953 | module_put(platform->dev->driver->owner); | |
954 | } | |
435c5e25 | 955 | |
f0fba2ad | 956 | /* remove the CODEC */ |
0168bf0d LG |
957 | if (codec && codec->probed && |
958 | codec->driver->remove_order == order) | |
589c3563 | 959 | soc_remove_codec(codec); |
db2a4165 | 960 | |
f0fba2ad | 961 | /* remove the cpu_dai */ |
0168bf0d LG |
962 | if (cpu_dai && cpu_dai->probed && |
963 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
964 | if (cpu_dai->driver->remove) { |
965 | err = cpu_dai->driver->remove(cpu_dai); | |
966 | if (err < 0) | |
0837fc62 FE |
967 | pr_err("asoc: failed to remove %s: %d\n", |
968 | cpu_dai->name, err); | |
db2a4165 | 969 | } |
f0fba2ad LG |
970 | cpu_dai->probed = 0; |
971 | list_del(&cpu_dai->card_list); | |
972 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 973 | } |
f0fba2ad | 974 | } |
db2a4165 | 975 | |
0671fd8e KM |
976 | static void soc_remove_dai_links(struct snd_soc_card *card) |
977 | { | |
0168bf0d | 978 | int dai, order; |
0671fd8e | 979 | |
0168bf0d LG |
980 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
981 | order++) { | |
982 | for (dai = 0; dai < card->num_rtd; dai++) | |
983 | soc_remove_dai_link(card, dai, order); | |
984 | } | |
0671fd8e KM |
985 | card->num_rtd = 0; |
986 | } | |
987 | ||
ead9b919 JN |
988 | static void soc_set_name_prefix(struct snd_soc_card *card, |
989 | struct snd_soc_codec *codec) | |
990 | { | |
991 | int i; | |
992 | ||
ff819b83 | 993 | if (card->codec_conf == NULL) |
ead9b919 JN |
994 | return; |
995 | ||
ff819b83 DP |
996 | for (i = 0; i < card->num_configs; i++) { |
997 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
998 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
999 | codec->name_prefix = map->name_prefix; | |
1000 | break; | |
1001 | } | |
1002 | } | |
1003 | } | |
1004 | ||
589c3563 JN |
1005 | static int soc_probe_codec(struct snd_soc_card *card, |
1006 | struct snd_soc_codec *codec) | |
1007 | { | |
1008 | int ret = 0; | |
89b95ac0 | 1009 | const struct snd_soc_codec_driver *driver = codec->driver; |
888df395 | 1010 | struct snd_soc_dai *dai; |
589c3563 JN |
1011 | |
1012 | codec->card = card; | |
1013 | codec->dapm.card = card; | |
1014 | soc_set_name_prefix(card, codec); | |
1015 | ||
70d29331 JN |
1016 | if (!try_module_get(codec->dev->driver->owner)) |
1017 | return -ENODEV; | |
1018 | ||
d5d1e0be LPC |
1019 | soc_init_codec_debugfs(codec); |
1020 | ||
77530150 LPC |
1021 | if (driver->dapm_widgets) |
1022 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1023 | driver->num_dapm_widgets); | |
1024 | ||
888df395 MB |
1025 | /* Create DAPM widgets for each DAI stream */ |
1026 | list_for_each_entry(dai, &dai_list, list) { | |
1027 | if (dai->dev != codec->dev) | |
1028 | continue; | |
1029 | ||
1030 | snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); | |
1031 | } | |
1032 | ||
33c5f969 MB |
1033 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
1034 | ||
89b95ac0 MB |
1035 | if (driver->probe) { |
1036 | ret = driver->probe(codec); | |
589c3563 JN |
1037 | if (ret < 0) { |
1038 | dev_err(codec->dev, | |
1039 | "asoc: failed to probe CODEC %s: %d\n", | |
1040 | codec->name, ret); | |
70d29331 | 1041 | goto err_probe; |
589c3563 JN |
1042 | } |
1043 | } | |
1044 | ||
b7af1daf | 1045 | if (driver->controls) |
022658be | 1046 | snd_soc_add_codec_controls(codec, driver->controls, |
b7af1daf | 1047 | driver->num_controls); |
89b95ac0 MB |
1048 | if (driver->dapm_routes) |
1049 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1050 | driver->num_dapm_routes); | |
1051 | ||
589c3563 JN |
1052 | /* mark codec as probed and add to card codec list */ |
1053 | codec->probed = 1; | |
1054 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1055 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1056 | |
70d29331 JN |
1057 | return 0; |
1058 | ||
1059 | err_probe: | |
d5d1e0be | 1060 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1061 | module_put(codec->dev->driver->owner); |
1062 | ||
589c3563 JN |
1063 | return ret; |
1064 | } | |
1065 | ||
956245e9 LG |
1066 | static int soc_probe_platform(struct snd_soc_card *card, |
1067 | struct snd_soc_platform *platform) | |
1068 | { | |
1069 | int ret = 0; | |
1070 | const struct snd_soc_platform_driver *driver = platform->driver; | |
1071 | ||
1072 | platform->card = card; | |
b7950641 | 1073 | platform->dapm.card = card; |
956245e9 LG |
1074 | |
1075 | if (!try_module_get(platform->dev->driver->owner)) | |
1076 | return -ENODEV; | |
1077 | ||
731f1ab2 SG |
1078 | soc_init_platform_debugfs(platform); |
1079 | ||
cb2cf612 LG |
1080 | if (driver->dapm_widgets) |
1081 | snd_soc_dapm_new_controls(&platform->dapm, | |
1082 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1083 | ||
956245e9 LG |
1084 | if (driver->probe) { |
1085 | ret = driver->probe(platform); | |
1086 | if (ret < 0) { | |
1087 | dev_err(platform->dev, | |
1088 | "asoc: failed to probe platform %s: %d\n", | |
1089 | platform->name, ret); | |
1090 | goto err_probe; | |
1091 | } | |
1092 | } | |
1093 | ||
cb2cf612 LG |
1094 | if (driver->controls) |
1095 | snd_soc_add_platform_controls(platform, driver->controls, | |
1096 | driver->num_controls); | |
1097 | if (driver->dapm_routes) | |
1098 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1099 | driver->num_dapm_routes); | |
1100 | ||
956245e9 LG |
1101 | /* mark platform as probed and add to card platform list */ |
1102 | platform->probed = 1; | |
1103 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1104 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1105 | |
1106 | return 0; | |
1107 | ||
1108 | err_probe: | |
02db1103 | 1109 | soc_cleanup_platform_debugfs(platform); |
956245e9 LG |
1110 | module_put(platform->dev->driver->owner); |
1111 | ||
1112 | return ret; | |
1113 | } | |
1114 | ||
36ae1a96 MB |
1115 | static void rtd_release(struct device *dev) |
1116 | { | |
1117 | kfree(dev); | |
1118 | } | |
f0fba2ad | 1119 | |
589c3563 JN |
1120 | static int soc_post_component_init(struct snd_soc_card *card, |
1121 | struct snd_soc_codec *codec, | |
1122 | int num, int dailess) | |
1123 | { | |
1124 | struct snd_soc_dai_link *dai_link = NULL; | |
1125 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1126 | struct snd_soc_pcm_runtime *rtd; | |
1127 | const char *temp, *name; | |
1128 | int ret = 0; | |
1129 | ||
1130 | if (!dailess) { | |
1131 | dai_link = &card->dai_link[num]; | |
1132 | rtd = &card->rtd[num]; | |
1133 | name = dai_link->name; | |
1134 | } else { | |
1135 | aux_dev = &card->aux_dev[num]; | |
1136 | rtd = &card->rtd_aux[num]; | |
1137 | name = aux_dev->name; | |
1138 | } | |
0962bb21 | 1139 | rtd->card = card; |
589c3563 | 1140 | |
4b1cfcb4 MB |
1141 | /* Make sure all DAPM widgets are instantiated */ |
1142 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1143 | ||
589c3563 JN |
1144 | /* machine controls, routes and widgets are not prefixed */ |
1145 | temp = codec->name_prefix; | |
1146 | codec->name_prefix = NULL; | |
1147 | ||
1148 | /* do machine specific initialization */ | |
1149 | if (!dailess && dai_link->init) | |
1150 | ret = dai_link->init(rtd); | |
1151 | else if (dailess && aux_dev->init) | |
1152 | ret = aux_dev->init(&codec->dapm); | |
1153 | if (ret < 0) { | |
1154 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1155 | return ret; | |
1156 | } | |
1157 | codec->name_prefix = temp; | |
1158 | ||
589c3563 JN |
1159 | /* register the rtd device */ |
1160 | rtd->codec = codec; | |
36ae1a96 MB |
1161 | |
1162 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
1163 | if (!rtd->dev) | |
1164 | return -ENOMEM; | |
1165 | device_initialize(rtd->dev); | |
1166 | rtd->dev->parent = card->dev; | |
1167 | rtd->dev->release = rtd_release; | |
1168 | rtd->dev->init_name = name; | |
1169 | dev_set_drvdata(rtd->dev, rtd); | |
b8c0dab9 | 1170 | mutex_init(&rtd->pcm_mutex); |
36ae1a96 | 1171 | ret = device_add(rtd->dev); |
589c3563 JN |
1172 | if (ret < 0) { |
1173 | dev_err(card->dev, | |
1174 | "asoc: failed to register runtime device: %d\n", ret); | |
1175 | return ret; | |
1176 | } | |
1177 | rtd->dev_registered = 1; | |
1178 | ||
1179 | /* add DAPM sysfs entries for this codec */ | |
36ae1a96 | 1180 | ret = snd_soc_dapm_sys_add(rtd->dev); |
589c3563 JN |
1181 | if (ret < 0) |
1182 | dev_err(codec->dev, | |
1183 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1184 | ret); | |
1185 | ||
1186 | /* add codec sysfs entries */ | |
36ae1a96 | 1187 | ret = device_create_file(rtd->dev, &dev_attr_codec_reg); |
589c3563 JN |
1188 | if (ret < 0) |
1189 | dev_err(codec->dev, | |
1190 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
0168bf0d | 1195 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1196 | { |
1197 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1198 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1199 | struct snd_soc_codec *codec = rtd->codec; | |
1200 | struct snd_soc_platform *platform = rtd->platform; | |
1201 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1202 | int ret; | |
1203 | ||
0168bf0d LG |
1204 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1205 | card->name, num, order); | |
f0fba2ad LG |
1206 | |
1207 | /* config components */ | |
1208 | codec_dai->codec = codec; | |
f0fba2ad | 1209 | cpu_dai->platform = platform; |
f0fba2ad LG |
1210 | codec_dai->card = card; |
1211 | cpu_dai->card = card; | |
1212 | ||
1213 | /* set default power off timeout */ | |
1214 | rtd->pmdown_time = pmdown_time; | |
1215 | ||
1216 | /* probe the cpu_dai */ | |
0168bf0d LG |
1217 | if (!cpu_dai->probed && |
1218 | cpu_dai->driver->probe_order == order) { | |
61b61e3c LG |
1219 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1220 | return -ENODEV; | |
1221 | ||
f0fba2ad LG |
1222 | if (cpu_dai->driver->probe) { |
1223 | ret = cpu_dai->driver->probe(cpu_dai); | |
1224 | if (ret < 0) { | |
0837fc62 FE |
1225 | pr_err("asoc: failed to probe CPU DAI %s: %d\n", |
1226 | cpu_dai->name, ret); | |
61b61e3c | 1227 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1228 | return ret; |
1229 | } | |
1230 | } | |
1231 | cpu_dai->probed = 1; | |
1c8371d6 | 1232 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1233 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1234 | } |
1235 | ||
f0fba2ad | 1236 | /* probe the CODEC */ |
0168bf0d LG |
1237 | if (!codec->probed && |
1238 | codec->driver->probe_order == order) { | |
589c3563 JN |
1239 | ret = soc_probe_codec(card, codec); |
1240 | if (ret < 0) | |
1241 | return ret; | |
db2a4165 FM |
1242 | } |
1243 | ||
f0fba2ad | 1244 | /* probe the platform */ |
0168bf0d LG |
1245 | if (!platform->probed && |
1246 | platform->driver->probe_order == order) { | |
956245e9 LG |
1247 | ret = soc_probe_platform(card, platform); |
1248 | if (ret < 0) | |
1249 | return ret; | |
f0fba2ad | 1250 | } |
6ed25978 | 1251 | |
f0fba2ad | 1252 | /* probe the CODEC DAI */ |
0168bf0d | 1253 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1254 | if (codec_dai->driver->probe) { |
1255 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1256 | if (ret < 0) { |
0837fc62 FE |
1257 | pr_err("asoc: failed to probe CODEC DAI %s: %d\n", |
1258 | codec_dai->name, ret); | |
f0fba2ad | 1259 | return ret; |
fe3e78e0 MB |
1260 | } |
1261 | } | |
f0fba2ad | 1262 | |
1c8371d6 | 1263 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1264 | codec_dai->probed = 1; |
1265 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1266 | } |
1267 | ||
0168bf0d LG |
1268 | /* complete DAI probe during last probe */ |
1269 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1270 | return 0; | |
1271 | ||
589c3563 JN |
1272 | ret = soc_post_component_init(card, codec, num, 0); |
1273 | if (ret) | |
f0fba2ad | 1274 | return ret; |
fe3e78e0 | 1275 | |
36ae1a96 | 1276 | ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); |
f0fba2ad | 1277 | if (ret < 0) |
0837fc62 | 1278 | pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret); |
f0fba2ad | 1279 | |
f0fba2ad LG |
1280 | /* create the pcm */ |
1281 | ret = soc_new_pcm(rtd, num); | |
1282 | if (ret < 0) { | |
0837fc62 FE |
1283 | pr_err("asoc: can't create pcm %s :%d\n", |
1284 | dai_link->stream_name, ret); | |
f0fba2ad LG |
1285 | return ret; |
1286 | } | |
1287 | ||
1288 | /* add platform data for AC97 devices */ | |
1289 | if (rtd->codec_dai->driver->ac97_control) | |
1290 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1291 | ||
1292 | return 0; | |
1293 | } | |
1294 | ||
fe3e78e0 | 1295 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1296 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1297 | { | |
1298 | int ret; | |
1299 | ||
fe3e78e0 MB |
1300 | /* Only instantiate AC97 if not already done by the adaptor |
1301 | * for the generic AC97 subsystem. | |
1302 | */ | |
f0fba2ad | 1303 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1304 | /* |
1305 | * It is possible that the AC97 device is already registered to | |
1306 | * the device subsystem. This happens when the device is created | |
1307 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1308 | * is the generic AC97 glue but others migh emerge. | |
1309 | * | |
1310 | * In those cases we don't try to register the device again. | |
1311 | */ | |
1312 | if (!rtd->codec->ac97_created) | |
1313 | return 0; | |
f0fba2ad LG |
1314 | |
1315 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 | 1316 | if (ret < 0) { |
0837fc62 | 1317 | pr_err("asoc: AC97 device register failed:%d\n", ret); |
f0fba2ad | 1318 | return ret; |
fe3e78e0 | 1319 | } |
f0fba2ad LG |
1320 | |
1321 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1322 | } |
f0fba2ad LG |
1323 | return 0; |
1324 | } | |
1325 | ||
1326 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1327 | { | |
1328 | if (codec->ac97_registered) { | |
1329 | soc_ac97_dev_unregister(codec); | |
1330 | codec->ac97_registered = 0; | |
1331 | } | |
1332 | } | |
fe3e78e0 MB |
1333 | #endif |
1334 | ||
2eea392d JN |
1335 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1336 | { | |
1337 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1338 | struct snd_soc_codec *codec; |
676ad98a | 1339 | int ret = -ENODEV; |
2eea392d JN |
1340 | |
1341 | /* find CODEC from registered CODECs*/ | |
1342 | list_for_each_entry(codec, &codec_list, list) { | |
1343 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1344 | if (codec->probed) { | |
1345 | dev_err(codec->dev, | |
1346 | "asoc: codec already probed"); | |
1347 | ret = -EBUSY; | |
1348 | goto out; | |
1349 | } | |
676ad98a | 1350 | goto found; |
2eea392d JN |
1351 | } |
1352 | } | |
676ad98a JN |
1353 | /* codec not found */ |
1354 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1355 | goto out; | |
2eea392d | 1356 | |
676ad98a | 1357 | found: |
589c3563 | 1358 | ret = soc_probe_codec(card, codec); |
2eea392d | 1359 | if (ret < 0) |
589c3563 | 1360 | return ret; |
2eea392d | 1361 | |
589c3563 | 1362 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1363 | |
1364 | out: | |
1365 | return ret; | |
1366 | } | |
1367 | ||
1368 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1369 | { | |
1370 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1371 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1372 | |
1373 | /* unregister the rtd device */ | |
1374 | if (rtd->dev_registered) { | |
36ae1a96 MB |
1375 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
1376 | device_del(rtd->dev); | |
2eea392d JN |
1377 | rtd->dev_registered = 0; |
1378 | } | |
1379 | ||
589c3563 JN |
1380 | if (codec && codec->probed) |
1381 | soc_remove_codec(codec); | |
2eea392d JN |
1382 | } |
1383 | ||
fdf0f54d DP |
1384 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1385 | enum snd_soc_compress_type compress_type) | |
1386 | { | |
1387 | int ret; | |
1388 | ||
1389 | if (codec->cache_init) | |
1390 | return 0; | |
1391 | ||
1392 | /* override the compress_type if necessary */ | |
1393 | if (compress_type && codec->compress_type != compress_type) | |
1394 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1395 | ret = snd_soc_cache_init(codec); |
1396 | if (ret < 0) { | |
1397 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1398 | ret); | |
1399 | return ret; | |
1400 | } | |
1401 | codec->cache_init = 1; | |
1402 | return 0; | |
1403 | } | |
1404 | ||
f0fba2ad LG |
1405 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1406 | { | |
fdf0f54d DP |
1407 | struct snd_soc_codec *codec; |
1408 | struct snd_soc_codec_conf *codec_conf; | |
1409 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1410 | struct snd_soc_dai_link *dai_link; |
0168bf0d | 1411 | int ret, i, order; |
fe3e78e0 | 1412 | |
f0fba2ad | 1413 | mutex_lock(&card->mutex); |
dbe21408 | 1414 | |
f0fba2ad LG |
1415 | if (card->instantiated) { |
1416 | mutex_unlock(&card->mutex); | |
1417 | return; | |
1418 | } | |
fe3e78e0 | 1419 | |
f0fba2ad LG |
1420 | /* bind DAIs */ |
1421 | for (i = 0; i < card->num_links; i++) | |
1422 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1423 | |
f0fba2ad LG |
1424 | /* bind completed ? */ |
1425 | if (card->num_rtd != card->num_links) { | |
1426 | mutex_unlock(&card->mutex); | |
1427 | return; | |
1428 | } | |
435c5e25 | 1429 | |
fdf0f54d DP |
1430 | /* initialize the register cache for each available codec */ |
1431 | list_for_each_entry(codec, &codec_list, list) { | |
1432 | if (codec->cache_init) | |
1433 | continue; | |
861f2faf DP |
1434 | /* by default we don't override the compress_type */ |
1435 | compress_type = 0; | |
fdf0f54d DP |
1436 | /* check to see if we need to override the compress_type */ |
1437 | for (i = 0; i < card->num_configs; ++i) { | |
1438 | codec_conf = &card->codec_conf[i]; | |
1439 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1440 | compress_type = codec_conf->compress_type; | |
1441 | if (compress_type && compress_type | |
1442 | != codec->compress_type) | |
1443 | break; | |
1444 | } | |
1445 | } | |
fdf0f54d DP |
1446 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1447 | if (ret < 0) { | |
1448 | mutex_unlock(&card->mutex); | |
1449 | return; | |
1450 | } | |
1451 | } | |
1452 | ||
f0fba2ad LG |
1453 | /* card bind complete so register a sound card */ |
1454 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1455 | card->owner, 0, &card->snd_card); | |
1456 | if (ret < 0) { | |
0837fc62 FE |
1457 | pr_err("asoc: can't create sound card for card %s: %d\n", |
1458 | card->name, ret); | |
f0fba2ad LG |
1459 | mutex_unlock(&card->mutex); |
1460 | return; | |
1461 | } | |
1462 | card->snd_card->dev = card->dev; | |
1463 | ||
e37a4970 MB |
1464 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1465 | card->dapm.dev = card->dev; | |
1466 | card->dapm.card = card; | |
1467 | list_add(&card->dapm.list, &card->dapm_list); | |
1468 | ||
d5d1e0be LPC |
1469 | #ifdef CONFIG_DEBUG_FS |
1470 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1471 | #endif | |
1472 | ||
88ee1c61 | 1473 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1474 | /* deferred resume work */ |
1475 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1476 | #endif | |
db2a4165 | 1477 | |
9a841ebb MB |
1478 | if (card->dapm_widgets) |
1479 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1480 | card->num_dapm_widgets); | |
1481 | ||
f0fba2ad LG |
1482 | /* initialise the sound card only once */ |
1483 | if (card->probe) { | |
e7361ec4 | 1484 | ret = card->probe(card); |
f0fba2ad LG |
1485 | if (ret < 0) |
1486 | goto card_probe_error; | |
1487 | } | |
fe3e78e0 | 1488 | |
0168bf0d LG |
1489 | /* early DAI link probe */ |
1490 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1491 | order++) { | |
1492 | for (i = 0; i < card->num_links; i++) { | |
1493 | ret = soc_probe_dai_link(card, i, order); | |
1494 | if (ret < 0) { | |
1495 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1496 | card->name, ret); |
0168bf0d LG |
1497 | goto probe_dai_err; |
1498 | } | |
f0fba2ad LG |
1499 | } |
1500 | } | |
db2a4165 | 1501 | |
2eea392d JN |
1502 | for (i = 0; i < card->num_aux_devs; i++) { |
1503 | ret = soc_probe_aux_dev(card, i); | |
1504 | if (ret < 0) { | |
1505 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1506 | card->name, ret); | |
1507 | goto probe_aux_dev_err; | |
1508 | } | |
1509 | } | |
1510 | ||
888df395 MB |
1511 | snd_soc_dapm_link_dai_widgets(card); |
1512 | ||
b7af1daf | 1513 | if (card->controls) |
022658be | 1514 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1515 | |
b8ad29de MB |
1516 | if (card->dapm_routes) |
1517 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1518 | card->num_dapm_routes); | |
1519 | ||
b90d2f90 MB |
1520 | snd_soc_dapm_new_widgets(&card->dapm); |
1521 | ||
75d9ac46 MB |
1522 | for (i = 0; i < card->num_links; i++) { |
1523 | dai_link = &card->dai_link[i]; | |
1524 | ||
1525 | if (dai_link->dai_fmt) { | |
1526 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, | |
1527 | dai_link->dai_fmt); | |
5e4ba569 | 1528 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1529 | dev_warn(card->rtd[i].codec_dai->dev, |
1530 | "Failed to set DAI format: %d\n", | |
1531 | ret); | |
1532 | ||
1533 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
1534 | dai_link->dai_fmt); | |
5e4ba569 | 1535 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1536 | dev_warn(card->rtd[i].cpu_dai->dev, |
1537 | "Failed to set DAI format: %d\n", | |
1538 | ret); | |
1539 | } | |
1540 | } | |
1541 | ||
f0fba2ad | 1542 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1543 | "%s", card->name); |
22de71ba LG |
1544 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1545 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1546 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1547 | "%s", card->driver_name ? card->driver_name : card->name); | |
1548 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1549 | switch (card->snd_card->driver[i]) { | |
1550 | case '_': | |
1551 | case '-': | |
1552 | case '\0': | |
1553 | break; | |
1554 | default: | |
1555 | if (!isalnum(card->snd_card->driver[i])) | |
1556 | card->snd_card->driver[i] = '_'; | |
1557 | break; | |
1558 | } | |
1559 | } | |
f0fba2ad | 1560 | |
28e9ad92 MB |
1561 | if (card->late_probe) { |
1562 | ret = card->late_probe(card); | |
1563 | if (ret < 0) { | |
1564 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1565 | card->name, ret); | |
1566 | goto probe_aux_dev_err; | |
1567 | } | |
1568 | } | |
1569 | ||
2dc00213 MB |
1570 | snd_soc_dapm_new_widgets(&card->dapm); |
1571 | ||
1633281b | 1572 | if (card->fully_routed) |
b05d8dc1 | 1573 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1574 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1575 | ||
f0fba2ad LG |
1576 | ret = snd_card_register(card->snd_card); |
1577 | if (ret < 0) { | |
0837fc62 FE |
1578 | pr_err("asoc: failed to register soundcard for %s: %d\n", |
1579 | card->name, ret); | |
6b3ed785 | 1580 | goto probe_aux_dev_err; |
db2a4165 FM |
1581 | } |
1582 | ||
f0fba2ad LG |
1583 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1584 | /* register any AC97 codecs */ | |
1585 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1586 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1587 | if (ret < 0) { | |
0837fc62 FE |
1588 | pr_err("asoc: failed to register AC97 %s: %d\n", |
1589 | card->name, ret); | |
6b3ed785 | 1590 | while (--i >= 0) |
7d8316df | 1591 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1592 | goto probe_aux_dev_err; |
f0fba2ad | 1593 | } |
6b3ed785 | 1594 | } |
f0fba2ad LG |
1595 | #endif |
1596 | ||
1597 | card->instantiated = 1; | |
4f4c0072 | 1598 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad LG |
1599 | mutex_unlock(&card->mutex); |
1600 | return; | |
1601 | ||
2eea392d JN |
1602 | probe_aux_dev_err: |
1603 | for (i = 0; i < card->num_aux_devs; i++) | |
1604 | soc_remove_aux_dev(card, i); | |
1605 | ||
f0fba2ad | 1606 | probe_dai_err: |
0671fd8e | 1607 | soc_remove_dai_links(card); |
f0fba2ad LG |
1608 | |
1609 | card_probe_error: | |
87506549 | 1610 | if (card->remove) |
e7361ec4 | 1611 | card->remove(card); |
f0fba2ad LG |
1612 | |
1613 | snd_card_free(card->snd_card); | |
1614 | ||
1615 | mutex_unlock(&card->mutex); | |
435c5e25 | 1616 | } |
db2a4165 | 1617 | |
435c5e25 | 1618 | /* |
421f91d2 | 1619 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1620 | * client_mutex. |
1621 | */ | |
1622 | static void snd_soc_instantiate_cards(void) | |
1623 | { | |
1624 | struct snd_soc_card *card; | |
1625 | list_for_each_entry(card, &card_list, list) | |
1626 | snd_soc_instantiate_card(card); | |
1627 | } | |
1628 | ||
1629 | /* probes a new socdev */ | |
1630 | static int soc_probe(struct platform_device *pdev) | |
1631 | { | |
f0fba2ad | 1632 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1633 | int ret = 0; |
435c5e25 | 1634 | |
70a7ca34 VK |
1635 | /* |
1636 | * no card, so machine driver should be registering card | |
1637 | * we should not be here in that case so ret error | |
1638 | */ | |
1639 | if (!card) | |
1640 | return -EINVAL; | |
1641 | ||
fe4085e8 MB |
1642 | dev_warn(&pdev->dev, |
1643 | "ASoC machine %s should use snd_soc_register_card()\n", | |
1644 | card->name); | |
1645 | ||
435c5e25 MB |
1646 | /* Bodge while we unpick instantiation */ |
1647 | card->dev = &pdev->dev; | |
f0fba2ad | 1648 | |
435c5e25 MB |
1649 | ret = snd_soc_register_card(card); |
1650 | if (ret != 0) { | |
1651 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1652 | return ret; | |
1653 | } | |
1654 | ||
1655 | return 0; | |
db2a4165 FM |
1656 | } |
1657 | ||
b0e26485 | 1658 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1659 | { |
1660 | int i; | |
db2a4165 | 1661 | |
b0e26485 VK |
1662 | /* make sure any delayed work runs */ |
1663 | for (i = 0; i < card->num_rtd; i++) { | |
1664 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1665 | flush_delayed_work_sync(&rtd->delayed_work); | |
1666 | } | |
914dc182 | 1667 | |
b0e26485 VK |
1668 | /* remove auxiliary devices */ |
1669 | for (i = 0; i < card->num_aux_devs; i++) | |
1670 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1671 | |
b0e26485 | 1672 | /* remove and free each DAI */ |
0671fd8e | 1673 | soc_remove_dai_links(card); |
2eea392d | 1674 | |
b0e26485 | 1675 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1676 | |
b0e26485 VK |
1677 | /* remove the card */ |
1678 | if (card->remove) | |
e7361ec4 | 1679 | card->remove(card); |
a6052154 | 1680 | |
0aaae527 LPC |
1681 | snd_soc_dapm_free(&card->dapm); |
1682 | ||
b0e26485 VK |
1683 | snd_card_free(card->snd_card); |
1684 | return 0; | |
1685 | ||
1686 | } | |
1687 | ||
1688 | /* removes a socdev */ | |
1689 | static int soc_remove(struct platform_device *pdev) | |
1690 | { | |
1691 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1692 | |
c5af3a2e | 1693 | snd_soc_unregister_card(card); |
db2a4165 FM |
1694 | return 0; |
1695 | } | |
1696 | ||
6f8ab4ac | 1697 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1698 | { |
6f8ab4ac | 1699 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1700 | int i; |
51737470 MB |
1701 | |
1702 | if (!card->instantiated) | |
416356fc | 1703 | return 0; |
51737470 MB |
1704 | |
1705 | /* Flush out pmdown_time work - we actually do want to run it | |
1706 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1707 | for (i = 0; i < card->num_rtd; i++) { |
1708 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1709 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1710 | } |
51737470 | 1711 | |
f0fba2ad | 1712 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1713 | |
1714 | return 0; | |
51737470 | 1715 | } |
6f8ab4ac | 1716 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1717 | |
6f8ab4ac | 1718 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1719 | .suspend = snd_soc_suspend, |
1720 | .resume = snd_soc_resume, | |
1721 | .freeze = snd_soc_suspend, | |
1722 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1723 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1724 | .restore = snd_soc_resume, |
416356fc | 1725 | }; |
deb2607e | 1726 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1727 | |
db2a4165 FM |
1728 | /* ASoC platform driver */ |
1729 | static struct platform_driver soc_driver = { | |
1730 | .driver = { | |
1731 | .name = "soc-audio", | |
8b45a209 | 1732 | .owner = THIS_MODULE, |
6f8ab4ac | 1733 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1734 | }, |
1735 | .probe = soc_probe, | |
1736 | .remove = soc_remove, | |
db2a4165 FM |
1737 | }; |
1738 | ||
096e49d5 MB |
1739 | /** |
1740 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1741 | * | |
1742 | * @codec: CODEC to query. | |
1743 | * @reg: Register to query. | |
1744 | * | |
1745 | * Boolean function indiciating if a CODEC register is volatile. | |
1746 | */ | |
181e055e MB |
1747 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1748 | unsigned int reg) | |
096e49d5 | 1749 | { |
1500b7b5 DP |
1750 | if (codec->volatile_register) |
1751 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1752 | else |
1753 | return 0; | |
1754 | } | |
1755 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1756 | ||
239c9706 DP |
1757 | /** |
1758 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1759 | * | |
1760 | * @codec: CODEC to query. | |
1761 | * @reg: Register to query. | |
1762 | * | |
1763 | * Boolean function indicating if a CODEC register is readable. | |
1764 | */ | |
1765 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1766 | unsigned int reg) | |
1767 | { | |
1768 | if (codec->readable_register) | |
1769 | return codec->readable_register(codec, reg); | |
1770 | else | |
63fa0a28 | 1771 | return 1; |
239c9706 DP |
1772 | } |
1773 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1774 | ||
1775 | /** | |
1776 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1777 | * | |
1778 | * @codec: CODEC to query. | |
1779 | * @reg: Register to query. | |
1780 | * | |
1781 | * Boolean function indicating if a CODEC register is writable. | |
1782 | */ | |
1783 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1784 | unsigned int reg) | |
1785 | { | |
1786 | if (codec->writable_register) | |
1787 | return codec->writable_register(codec, reg); | |
1788 | else | |
63fa0a28 | 1789 | return 1; |
239c9706 DP |
1790 | } |
1791 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1792 | ||
f1442bc1 LG |
1793 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1794 | unsigned int reg) | |
1795 | { | |
1796 | unsigned int ret; | |
1797 | ||
1798 | if (!platform->driver->read) { | |
1799 | dev_err(platform->dev, "platform has no read back\n"); | |
1800 | return -1; | |
1801 | } | |
1802 | ||
1803 | ret = platform->driver->read(platform, reg); | |
1804 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1805 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1806 | |
1807 | return ret; | |
1808 | } | |
1809 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1810 | ||
1811 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1812 | unsigned int reg, unsigned int val) | |
1813 | { | |
1814 | if (!platform->driver->write) { | |
1815 | dev_err(platform->dev, "platform has no write back\n"); | |
1816 | return -1; | |
1817 | } | |
1818 | ||
1819 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1820 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1821 | return platform->driver->write(platform, reg, val); |
1822 | } | |
1823 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1824 | ||
db2a4165 FM |
1825 | /** |
1826 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1827 | * @codec: audio codec | |
1828 | * @ops: AC97 bus operations | |
1829 | * @num: AC97 codec number | |
1830 | * | |
1831 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1832 | */ | |
1833 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1834 | struct snd_ac97_bus_ops *ops, int num) | |
1835 | { | |
1836 | mutex_lock(&codec->mutex); | |
1837 | ||
1838 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1839 | if (codec->ac97 == NULL) { | |
1840 | mutex_unlock(&codec->mutex); | |
1841 | return -ENOMEM; | |
1842 | } | |
1843 | ||
1844 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1845 | if (codec->ac97->bus == NULL) { | |
1846 | kfree(codec->ac97); | |
1847 | codec->ac97 = NULL; | |
1848 | mutex_unlock(&codec->mutex); | |
1849 | return -ENOMEM; | |
1850 | } | |
1851 | ||
1852 | codec->ac97->bus->ops = ops; | |
1853 | codec->ac97->num = num; | |
0562f788 MW |
1854 | |
1855 | /* | |
1856 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1857 | * device will be registered with the device subsystem later on. | |
1858 | */ | |
1859 | codec->ac97_created = 1; | |
1860 | ||
db2a4165 FM |
1861 | mutex_unlock(&codec->mutex); |
1862 | return 0; | |
1863 | } | |
1864 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1865 | ||
1866 | /** | |
1867 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1868 | * @codec: audio codec | |
1869 | * | |
1870 | * Frees AC97 codec device resources. | |
1871 | */ | |
1872 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1873 | { | |
1874 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1875 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1876 | soc_unregister_ac97_dai_link(codec); | |
1877 | #endif | |
db2a4165 FM |
1878 | kfree(codec->ac97->bus); |
1879 | kfree(codec->ac97); | |
1880 | codec->ac97 = NULL; | |
0562f788 | 1881 | codec->ac97_created = 0; |
db2a4165 FM |
1882 | mutex_unlock(&codec->mutex); |
1883 | } | |
1884 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1885 | ||
c3753707 MB |
1886 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1887 | { | |
1888 | unsigned int ret; | |
1889 | ||
c3acec26 | 1890 | ret = codec->read(codec, reg); |
c3753707 | 1891 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1892 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1893 | |
1894 | return ret; | |
1895 | } | |
1896 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1897 | ||
1898 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1899 | unsigned int reg, unsigned int val) | |
1900 | { | |
1901 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 1902 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 1903 | return codec->write(codec, reg, val); |
c3753707 MB |
1904 | } |
1905 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1906 | ||
5fb609d4 DP |
1907 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
1908 | unsigned int reg, const void *data, size_t len) | |
1909 | { | |
1910 | return codec->bulk_write_raw(codec, reg, data, len); | |
1911 | } | |
1912 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
1913 | ||
db2a4165 FM |
1914 | /** |
1915 | * snd_soc_update_bits - update codec register bits | |
1916 | * @codec: audio codec | |
1917 | * @reg: codec register | |
1918 | * @mask: register mask | |
1919 | * @value: new value | |
1920 | * | |
1921 | * Writes new register value. | |
1922 | * | |
180c329d | 1923 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
1924 | */ |
1925 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1926 | unsigned int mask, unsigned int value) |
db2a4165 | 1927 | { |
8a713da8 | 1928 | bool change; |
46f5822f | 1929 | unsigned int old, new; |
180c329d TT |
1930 | int ret; |
1931 | ||
8a713da8 MB |
1932 | if (codec->using_regmap) { |
1933 | ret = regmap_update_bits_check(codec->control_data, reg, | |
1934 | mask, value, &change); | |
1935 | } else { | |
1936 | ret = snd_soc_read(codec, reg); | |
180c329d TT |
1937 | if (ret < 0) |
1938 | return ret; | |
8a713da8 MB |
1939 | |
1940 | old = ret; | |
1941 | new = (old & ~mask) | (value & mask); | |
1942 | change = old != new; | |
1943 | if (change) | |
1944 | ret = snd_soc_write(codec, reg, new); | |
180c329d | 1945 | } |
db2a4165 | 1946 | |
8a713da8 MB |
1947 | if (ret < 0) |
1948 | return ret; | |
1949 | ||
db2a4165 FM |
1950 | return change; |
1951 | } | |
1952 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1953 | ||
6c508c62 EN |
1954 | /** |
1955 | * snd_soc_update_bits_locked - update codec register bits | |
1956 | * @codec: audio codec | |
1957 | * @reg: codec register | |
1958 | * @mask: register mask | |
1959 | * @value: new value | |
1960 | * | |
1961 | * Writes new register value, and takes the codec mutex. | |
1962 | * | |
1963 | * Returns 1 for change else 0. | |
1964 | */ | |
dd1b3d53 MB |
1965 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1966 | unsigned short reg, unsigned int mask, | |
1967 | unsigned int value) | |
6c508c62 EN |
1968 | { |
1969 | int change; | |
1970 | ||
1971 | mutex_lock(&codec->mutex); | |
1972 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1973 | mutex_unlock(&codec->mutex); | |
1974 | ||
1975 | return change; | |
1976 | } | |
dd1b3d53 | 1977 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1978 | |
db2a4165 FM |
1979 | /** |
1980 | * snd_soc_test_bits - test register for change | |
1981 | * @codec: audio codec | |
1982 | * @reg: codec register | |
1983 | * @mask: register mask | |
1984 | * @value: new value | |
1985 | * | |
1986 | * Tests a register with a new value and checks if the new value is | |
1987 | * different from the old value. | |
1988 | * | |
1989 | * Returns 1 for change else 0. | |
1990 | */ | |
1991 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1992 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1993 | { |
1994 | int change; | |
46f5822f | 1995 | unsigned int old, new; |
db2a4165 | 1996 | |
db2a4165 FM |
1997 | old = snd_soc_read(codec, reg); |
1998 | new = (old & ~mask) | value; | |
1999 | change = old != new; | |
db2a4165 FM |
2000 | |
2001 | return change; | |
2002 | } | |
2003 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2004 | ||
db2a4165 FM |
2005 | /** |
2006 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2007 | * @substream: the pcm substream | |
2008 | * @hw: the hardware parameters | |
2009 | * | |
2010 | * Sets the substream runtime hardware parameters. | |
2011 | */ | |
2012 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2013 | const struct snd_pcm_hardware *hw) | |
2014 | { | |
2015 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2016 | runtime->hw.info = hw->info; | |
2017 | runtime->hw.formats = hw->formats; | |
2018 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2019 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2020 | runtime->hw.periods_min = hw->periods_min; | |
2021 | runtime->hw.periods_max = hw->periods_max; | |
2022 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2023 | runtime->hw.fifo_size = hw->fifo_size; | |
2024 | return 0; | |
2025 | } | |
2026 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2027 | ||
2028 | /** | |
2029 | * snd_soc_cnew - create new control | |
2030 | * @_template: control template | |
2031 | * @data: control private data | |
ac11a2b3 | 2032 | * @long_name: control long name |
efb7ac3f | 2033 | * @prefix: control name prefix |
db2a4165 FM |
2034 | * |
2035 | * Create a new mixer control from a template control. | |
2036 | * | |
2037 | * Returns 0 for success, else error. | |
2038 | */ | |
2039 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2040 | void *data, const char *long_name, |
efb7ac3f | 2041 | const char *prefix) |
db2a4165 FM |
2042 | { |
2043 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2044 | struct snd_kcontrol *kcontrol; |
2045 | char *name = NULL; | |
2046 | int name_len; | |
db2a4165 FM |
2047 | |
2048 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2049 | template.index = 0; |
2050 | ||
efb7ac3f MB |
2051 | if (!long_name) |
2052 | long_name = template.name; | |
2053 | ||
2054 | if (prefix) { | |
2055 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 2056 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
2057 | if (!name) |
2058 | return NULL; | |
2059 | ||
2060 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2061 | ||
2062 | template.name = name; | |
2063 | } else { | |
2064 | template.name = long_name; | |
2065 | } | |
2066 | ||
2067 | kcontrol = snd_ctl_new1(&template, data); | |
2068 | ||
2069 | kfree(name); | |
2070 | ||
2071 | return kcontrol; | |
db2a4165 FM |
2072 | } |
2073 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2074 | ||
022658be LG |
2075 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2076 | const struct snd_kcontrol_new *controls, int num_controls, | |
2077 | const char *prefix, void *data) | |
2078 | { | |
2079 | int err, i; | |
2080 | ||
2081 | for (i = 0; i < num_controls; i++) { | |
2082 | const struct snd_kcontrol_new *control = &controls[i]; | |
2083 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2084 | control->name, prefix)); | |
2085 | if (err < 0) { | |
2086 | dev_err(dev, "Failed to add %s: %d\n", control->name, err); | |
2087 | return err; | |
2088 | } | |
2089 | } | |
2090 | ||
2091 | return 0; | |
2092 | } | |
2093 | ||
3e8e1952 | 2094 | /** |
022658be LG |
2095 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2096 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2097 | * duplicating this code. |
2098 | * | |
2099 | * @codec: codec to add controls to | |
2100 | * @controls: array of controls to add | |
2101 | * @num_controls: number of elements in the array | |
2102 | * | |
2103 | * Return 0 for success, else error. | |
2104 | */ | |
022658be | 2105 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
3e8e1952 IM |
2106 | const struct snd_kcontrol_new *controls, int num_controls) |
2107 | { | |
f0fba2ad | 2108 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 | 2109 | |
022658be LG |
2110 | return snd_soc_add_controls(card, codec->dev, controls, num_controls, |
2111 | codec->name_prefix, codec); | |
3e8e1952 | 2112 | } |
022658be | 2113 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2114 | |
a491a5c8 LG |
2115 | /** |
2116 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2117 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2118 | * |
2119 | * @platform: platform to add controls to | |
2120 | * @controls: array of controls to add | |
2121 | * @num_controls: number of elements in the array | |
2122 | * | |
2123 | * Return 0 for success, else error. | |
2124 | */ | |
2125 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2126 | const struct snd_kcontrol_new *controls, int num_controls) | |
2127 | { | |
2128 | struct snd_card *card = platform->card->snd_card; | |
a491a5c8 | 2129 | |
022658be LG |
2130 | return snd_soc_add_controls(card, platform->dev, controls, num_controls, |
2131 | NULL, platform); | |
a491a5c8 LG |
2132 | } |
2133 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2134 | ||
022658be LG |
2135 | /** |
2136 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2137 | * Convenience function to add a list of controls. | |
2138 | * | |
2139 | * @soc_card: SoC card to add controls to | |
2140 | * @controls: array of controls to add | |
2141 | * @num_controls: number of elements in the array | |
2142 | * | |
2143 | * Return 0 for success, else error. | |
2144 | */ | |
2145 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2146 | const struct snd_kcontrol_new *controls, int num_controls) | |
2147 | { | |
2148 | struct snd_card *card = soc_card->snd_card; | |
2149 | ||
2150 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2151 | NULL, soc_card); | |
2152 | } | |
2153 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2154 | ||
2155 | /** | |
2156 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2157 | * Convienience function to add a list of controls. | |
2158 | * | |
2159 | * @dai: DAI to add controls to | |
2160 | * @controls: array of controls to add | |
2161 | * @num_controls: number of elements in the array | |
2162 | * | |
2163 | * Return 0 for success, else error. | |
2164 | */ | |
2165 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2166 | const struct snd_kcontrol_new *controls, int num_controls) | |
2167 | { | |
2168 | struct snd_card *card = dai->card->snd_card; | |
2169 | ||
2170 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2171 | NULL, dai); | |
2172 | } | |
2173 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2174 | ||
db2a4165 FM |
2175 | /** |
2176 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2177 | * @kcontrol: mixer control | |
2178 | * @uinfo: control element information | |
2179 | * | |
2180 | * Callback to provide information about a double enumerated | |
2181 | * mixer control. | |
2182 | * | |
2183 | * Returns 0 for success. | |
2184 | */ | |
2185 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2186 | struct snd_ctl_elem_info *uinfo) | |
2187 | { | |
2188 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2189 | ||
2190 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2191 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2192 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2193 | |
f8ba0b7b JS |
2194 | if (uinfo->value.enumerated.item > e->max - 1) |
2195 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2196 | strcpy(uinfo->value.enumerated.name, |
2197 | e->texts[uinfo->value.enumerated.item]); | |
2198 | return 0; | |
2199 | } | |
2200 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2201 | ||
2202 | /** | |
2203 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2204 | * @kcontrol: mixer control | |
ac11a2b3 | 2205 | * @ucontrol: control element information |
db2a4165 FM |
2206 | * |
2207 | * Callback to get the value of a double enumerated mixer. | |
2208 | * | |
2209 | * Returns 0 for success. | |
2210 | */ | |
2211 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2212 | struct snd_ctl_elem_value *ucontrol) | |
2213 | { | |
2214 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2215 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2216 | unsigned int val, bitmask; |
db2a4165 | 2217 | |
f8ba0b7b | 2218 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2219 | ; |
2220 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2221 | ucontrol->value.enumerated.item[0] |
2222 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2223 | if (e->shift_l != e->shift_r) |
2224 | ucontrol->value.enumerated.item[1] = | |
2225 | (val >> e->shift_r) & (bitmask - 1); | |
2226 | ||
2227 | return 0; | |
2228 | } | |
2229 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2230 | ||
2231 | /** | |
2232 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2233 | * @kcontrol: mixer control | |
ac11a2b3 | 2234 | * @ucontrol: control element information |
db2a4165 FM |
2235 | * |
2236 | * Callback to set the value of a double enumerated mixer. | |
2237 | * | |
2238 | * Returns 0 for success. | |
2239 | */ | |
2240 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2241 | struct snd_ctl_elem_value *ucontrol) | |
2242 | { | |
2243 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2244 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2245 | unsigned int val; |
2246 | unsigned int mask, bitmask; | |
db2a4165 | 2247 | |
f8ba0b7b | 2248 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2249 | ; |
f8ba0b7b | 2250 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2251 | return -EINVAL; |
2252 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2253 | mask = (bitmask - 1) << e->shift_l; | |
2254 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2255 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2256 | return -EINVAL; |
2257 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2258 | mask |= (bitmask - 1) << e->shift_r; | |
2259 | } | |
2260 | ||
6c508c62 | 2261 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2262 | } |
2263 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2264 | ||
2e72f8e3 PU |
2265 | /** |
2266 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2267 | * @kcontrol: mixer control | |
2268 | * @ucontrol: control element information | |
2269 | * | |
2270 | * Callback to get the value of a double semi enumerated mixer. | |
2271 | * | |
2272 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2273 | * used for handling bitfield coded enumeration for example. | |
2274 | * | |
2275 | * Returns 0 for success. | |
2276 | */ | |
2277 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2278 | struct snd_ctl_elem_value *ucontrol) | |
2279 | { | |
2280 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2281 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2282 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2283 | |
2284 | reg_val = snd_soc_read(codec, e->reg); | |
2285 | val = (reg_val >> e->shift_l) & e->mask; | |
2286 | for (mux = 0; mux < e->max; mux++) { | |
2287 | if (val == e->values[mux]) | |
2288 | break; | |
2289 | } | |
2290 | ucontrol->value.enumerated.item[0] = mux; | |
2291 | if (e->shift_l != e->shift_r) { | |
2292 | val = (reg_val >> e->shift_r) & e->mask; | |
2293 | for (mux = 0; mux < e->max; mux++) { | |
2294 | if (val == e->values[mux]) | |
2295 | break; | |
2296 | } | |
2297 | ucontrol->value.enumerated.item[1] = mux; | |
2298 | } | |
2299 | ||
2300 | return 0; | |
2301 | } | |
2302 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2303 | ||
2304 | /** | |
2305 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2306 | * @kcontrol: mixer control | |
2307 | * @ucontrol: control element information | |
2308 | * | |
2309 | * Callback to set the value of a double semi enumerated mixer. | |
2310 | * | |
2311 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2312 | * used for handling bitfield coded enumeration for example. | |
2313 | * | |
2314 | * Returns 0 for success. | |
2315 | */ | |
2316 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2317 | struct snd_ctl_elem_value *ucontrol) | |
2318 | { | |
2319 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2320 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2321 | unsigned int val; |
2322 | unsigned int mask; | |
2e72f8e3 PU |
2323 | |
2324 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2325 | return -EINVAL; | |
2326 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2327 | mask = e->mask << e->shift_l; | |
2328 | if (e->shift_l != e->shift_r) { | |
2329 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2330 | return -EINVAL; | |
2331 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2332 | mask |= e->mask << e->shift_r; | |
2333 | } | |
2334 | ||
6c508c62 | 2335 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2336 | } |
2337 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2338 | ||
db2a4165 FM |
2339 | /** |
2340 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2341 | * @kcontrol: mixer control | |
2342 | * @uinfo: control element information | |
2343 | * | |
2344 | * Callback to provide information about an external enumerated | |
2345 | * single mixer. | |
2346 | * | |
2347 | * Returns 0 for success. | |
2348 | */ | |
2349 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2350 | struct snd_ctl_elem_info *uinfo) | |
2351 | { | |
2352 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2353 | ||
2354 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2355 | uinfo->count = 1; | |
f8ba0b7b | 2356 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2357 | |
f8ba0b7b JS |
2358 | if (uinfo->value.enumerated.item > e->max - 1) |
2359 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2360 | strcpy(uinfo->value.enumerated.name, |
2361 | e->texts[uinfo->value.enumerated.item]); | |
2362 | return 0; | |
2363 | } | |
2364 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2365 | ||
2366 | /** | |
2367 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2368 | * @kcontrol: mixer control | |
2369 | * @uinfo: control element information | |
2370 | * | |
2371 | * Callback to provide information about a single external mixer control. | |
2372 | * | |
2373 | * Returns 0 for success. | |
2374 | */ | |
2375 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2376 | struct snd_ctl_elem_info *uinfo) | |
2377 | { | |
a7a4ac86 PZ |
2378 | int max = kcontrol->private_value; |
2379 | ||
fd5dfad9 | 2380 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2381 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2382 | else | |
2383 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2384 | |
db2a4165 FM |
2385 | uinfo->count = 1; |
2386 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2387 | uinfo->value.integer.max = max; |
db2a4165 FM |
2388 | return 0; |
2389 | } | |
2390 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2391 | ||
db2a4165 FM |
2392 | /** |
2393 | * snd_soc_info_volsw - single mixer info callback | |
2394 | * @kcontrol: mixer control | |
2395 | * @uinfo: control element information | |
2396 | * | |
e8f5a103 PU |
2397 | * Callback to provide information about a single mixer control, or a double |
2398 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2399 | * |
2400 | * Returns 0 for success. | |
2401 | */ | |
2402 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2403 | struct snd_ctl_elem_info *uinfo) | |
2404 | { | |
4eaa9819 JS |
2405 | struct soc_mixer_control *mc = |
2406 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2407 | int platform_max; |
db2a4165 | 2408 | |
d11bb4a9 PU |
2409 | if (!mc->platform_max) |
2410 | mc->platform_max = mc->max; | |
2411 | platform_max = mc->platform_max; | |
2412 | ||
2413 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2414 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2415 | else | |
2416 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2417 | ||
e8f5a103 | 2418 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2419 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2420 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2421 | return 0; |
2422 | } | |
2423 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2424 | ||
2425 | /** | |
2426 | * snd_soc_get_volsw - single mixer get callback | |
2427 | * @kcontrol: mixer control | |
ac11a2b3 | 2428 | * @ucontrol: control element information |
db2a4165 | 2429 | * |
f7915d99 PU |
2430 | * Callback to get the value of a single mixer control, or a double mixer |
2431 | * control that spans 2 registers. | |
db2a4165 FM |
2432 | * |
2433 | * Returns 0 for success. | |
2434 | */ | |
2435 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2436 | struct snd_ctl_elem_value *ucontrol) | |
2437 | { | |
4eaa9819 JS |
2438 | struct soc_mixer_control *mc = |
2439 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2440 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2441 | unsigned int reg = mc->reg; |
f7915d99 | 2442 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2443 | unsigned int shift = mc->shift; |
2444 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2445 | int max = mc->max; |
815ecf8d JS |
2446 | unsigned int mask = (1 << fls(max)) - 1; |
2447 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2448 | |
2449 | ucontrol->value.integer.value[0] = | |
2450 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2451 | if (invert) |
db2a4165 | 2452 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2453 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2454 | |
2455 | if (snd_soc_volsw_is_stereo(mc)) { | |
2456 | if (reg == reg2) | |
2457 | ucontrol->value.integer.value[1] = | |
2458 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2459 | else | |
2460 | ucontrol->value.integer.value[1] = | |
2461 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2462 | if (invert) | |
db2a4165 | 2463 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2464 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2465 | } |
2466 | ||
2467 | return 0; | |
2468 | } | |
2469 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2470 | ||
2471 | /** | |
2472 | * snd_soc_put_volsw - single mixer put callback | |
2473 | * @kcontrol: mixer control | |
ac11a2b3 | 2474 | * @ucontrol: control element information |
db2a4165 | 2475 | * |
974815ba PU |
2476 | * Callback to set the value of a single mixer control, or a double mixer |
2477 | * control that spans 2 registers. | |
db2a4165 FM |
2478 | * |
2479 | * Returns 0 for success. | |
2480 | */ | |
2481 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2482 | struct snd_ctl_elem_value *ucontrol) | |
2483 | { | |
4eaa9819 JS |
2484 | struct soc_mixer_control *mc = |
2485 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2486 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2487 | unsigned int reg = mc->reg; |
974815ba | 2488 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2489 | unsigned int shift = mc->shift; |
2490 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2491 | int max = mc->max; |
815ecf8d JS |
2492 | unsigned int mask = (1 << fls(max)) - 1; |
2493 | unsigned int invert = mc->invert; | |
974815ba PU |
2494 | int err; |
2495 | bool type_2r = 0; | |
2496 | unsigned int val2 = 0; | |
2497 | unsigned int val, val_mask; | |
db2a4165 FM |
2498 | |
2499 | val = (ucontrol->value.integer.value[0] & mask); | |
2500 | if (invert) | |
a7a4ac86 | 2501 | val = max - val; |
db2a4165 FM |
2502 | val_mask = mask << shift; |
2503 | val = val << shift; | |
974815ba | 2504 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2505 | val2 = (ucontrol->value.integer.value[1] & mask); |
2506 | if (invert) | |
a7a4ac86 | 2507 | val2 = max - val2; |
974815ba PU |
2508 | if (reg == reg2) { |
2509 | val_mask |= mask << rshift; | |
2510 | val |= val2 << rshift; | |
2511 | } else { | |
2512 | val2 = val2 << shift; | |
2513 | type_2r = 1; | |
2514 | } | |
db2a4165 | 2515 | } |
6c508c62 | 2516 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2517 | if (err < 0) |
db2a4165 FM |
2518 | return err; |
2519 | ||
974815ba PU |
2520 | if (type_2r) |
2521 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2522 | ||
db2a4165 FM |
2523 | return err; |
2524 | } | |
974815ba | 2525 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2526 | |
e13ac2e9 MB |
2527 | /** |
2528 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2529 | * @kcontrol: mixer control | |
2530 | * @uinfo: control element information | |
2531 | * | |
2532 | * Callback to provide information about a signed mixer control. | |
2533 | * | |
2534 | * Returns 0 for success. | |
2535 | */ | |
2536 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2537 | struct snd_ctl_elem_info *uinfo) | |
2538 | { | |
4eaa9819 JS |
2539 | struct soc_mixer_control *mc = |
2540 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2541 | int platform_max; |
4eaa9819 | 2542 | int min = mc->min; |
e13ac2e9 | 2543 | |
d11bb4a9 PU |
2544 | if (!mc->platform_max) |
2545 | mc->platform_max = mc->max; | |
2546 | platform_max = mc->platform_max; | |
2547 | ||
e13ac2e9 MB |
2548 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2549 | uinfo->count = 2; | |
2550 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2551 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2552 | return 0; |
2553 | } | |
2554 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2555 | ||
2556 | /** | |
2557 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2558 | * @kcontrol: mixer control | |
ac11a2b3 | 2559 | * @ucontrol: control element information |
e13ac2e9 MB |
2560 | * |
2561 | * Callback to get the value of a signed mixer control. | |
2562 | * | |
2563 | * Returns 0 for success. | |
2564 | */ | |
2565 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2566 | struct snd_ctl_elem_value *ucontrol) | |
2567 | { | |
4eaa9819 JS |
2568 | struct soc_mixer_control *mc = |
2569 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2570 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2571 | unsigned int reg = mc->reg; |
4eaa9819 | 2572 | int min = mc->min; |
e13ac2e9 MB |
2573 | int val = snd_soc_read(codec, reg); |
2574 | ||
2575 | ucontrol->value.integer.value[0] = | |
2576 | ((signed char)(val & 0xff))-min; | |
2577 | ucontrol->value.integer.value[1] = | |
2578 | ((signed char)((val >> 8) & 0xff))-min; | |
2579 | return 0; | |
2580 | } | |
2581 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2582 | ||
2583 | /** | |
2584 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2585 | * @kcontrol: mixer control | |
ac11a2b3 | 2586 | * @ucontrol: control element information |
e13ac2e9 MB |
2587 | * |
2588 | * Callback to set the value of a signed mixer control. | |
2589 | * | |
2590 | * Returns 0 for success. | |
2591 | */ | |
2592 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2593 | struct snd_ctl_elem_value *ucontrol) | |
2594 | { | |
4eaa9819 JS |
2595 | struct soc_mixer_control *mc = |
2596 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2597 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2598 | unsigned int reg = mc->reg; |
4eaa9819 | 2599 | int min = mc->min; |
46f5822f | 2600 | unsigned int val; |
e13ac2e9 MB |
2601 | |
2602 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2603 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2604 | ||
6c508c62 | 2605 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2606 | } |
2607 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2608 | ||
637d3847 PU |
2609 | /** |
2610 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2611 | * | |
2612 | * @codec: where to look for the control | |
2613 | * @name: Name of the control | |
2614 | * @max: new maximum limit | |
2615 | * | |
2616 | * Return 0 for success, else error. | |
2617 | */ | |
2618 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2619 | const char *name, int max) | |
2620 | { | |
f0fba2ad | 2621 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2622 | struct snd_kcontrol *kctl; |
2623 | struct soc_mixer_control *mc; | |
2624 | int found = 0; | |
2625 | int ret = -EINVAL; | |
2626 | ||
2627 | /* Sanity check for name and max */ | |
2628 | if (unlikely(!name || max <= 0)) | |
2629 | return -EINVAL; | |
2630 | ||
2631 | list_for_each_entry(kctl, &card->controls, list) { | |
2632 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2633 | found = 1; | |
2634 | break; | |
2635 | } | |
2636 | } | |
2637 | if (found) { | |
2638 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2639 | if (max <= mc->max) { | |
d11bb4a9 | 2640 | mc->platform_max = max; |
637d3847 PU |
2641 | ret = 0; |
2642 | } | |
2643 | } | |
2644 | return ret; | |
2645 | } | |
2646 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2647 | ||
b6f4bb38 | 2648 | /** |
2649 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2650 | * mixer info callback | |
2651 | * @kcontrol: mixer control | |
2652 | * @uinfo: control element information | |
2653 | * | |
2654 | * Returns 0 for success. | |
2655 | */ | |
2656 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2657 | struct snd_ctl_elem_info *uinfo) | |
2658 | { | |
2659 | struct soc_mixer_control *mc = | |
2660 | (struct soc_mixer_control *)kcontrol->private_value; | |
2661 | int max = mc->max; | |
2662 | int min = mc->min; | |
2663 | ||
2664 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2665 | uinfo->count = 2; | |
2666 | uinfo->value.integer.min = 0; | |
2667 | uinfo->value.integer.max = max-min; | |
2668 | ||
2669 | return 0; | |
2670 | } | |
2671 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2672 | ||
2673 | /** | |
2674 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2675 | * mixer get callback | |
2676 | * @kcontrol: mixer control | |
2677 | * @uinfo: control element information | |
2678 | * | |
2679 | * Returns 0 for success. | |
2680 | */ | |
2681 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2682 | struct snd_ctl_elem_value *ucontrol) | |
2683 | { | |
2684 | struct soc_mixer_control *mc = | |
2685 | (struct soc_mixer_control *)kcontrol->private_value; | |
2686 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2687 | unsigned int mask = (1<<mc->shift)-1; | |
2688 | int min = mc->min; | |
2689 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2690 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2691 | ||
20630c7f SL |
2692 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2693 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2694 | return 0; |
2695 | } | |
2696 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2697 | ||
2698 | /** | |
2699 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2700 | * mixer put callback | |
2701 | * @kcontrol: mixer control | |
2702 | * @uinfo: control element information | |
2703 | * | |
2704 | * Returns 0 for success. | |
2705 | */ | |
2706 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2707 | struct snd_ctl_elem_value *ucontrol) | |
2708 | { | |
2709 | struct soc_mixer_control *mc = | |
2710 | (struct soc_mixer_control *)kcontrol->private_value; | |
2711 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2712 | unsigned int mask = (1<<mc->shift)-1; | |
2713 | int min = mc->min; | |
2714 | int ret; | |
2715 | unsigned int val, valr, oval, ovalr; | |
2716 | ||
2717 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2718 | val &= mask; | |
2719 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2720 | valr &= mask; | |
2721 | ||
2722 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2723 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2724 | ||
2725 | ret = 0; | |
2726 | if (oval != val) { | |
2727 | ret = snd_soc_write(codec, mc->reg, val); | |
2728 | if (ret < 0) | |
f1df5aec | 2729 | return ret; |
b6f4bb38 | 2730 | } |
2731 | if (ovalr != valr) { | |
2732 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2733 | if (ret < 0) | |
f1df5aec | 2734 | return ret; |
b6f4bb38 | 2735 | } |
2736 | ||
2737 | return 0; | |
2738 | } | |
2739 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2740 | ||
71d08516 MB |
2741 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, |
2742 | struct snd_ctl_elem_info *uinfo) | |
2743 | { | |
2744 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2745 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2746 | ||
2747 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
2748 | uinfo->count = params->num_regs * codec->val_bytes; | |
2749 | ||
2750 | return 0; | |
2751 | } | |
2752 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
2753 | ||
2754 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
2755 | struct snd_ctl_elem_value *ucontrol) | |
2756 | { | |
2757 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2758 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2759 | int ret; | |
2760 | ||
2761 | if (codec->using_regmap) | |
2762 | ret = regmap_raw_read(codec->control_data, params->base, | |
2763 | ucontrol->value.bytes.data, | |
2764 | params->num_regs * codec->val_bytes); | |
2765 | else | |
2766 | ret = -EINVAL; | |
2767 | ||
f831b055 MB |
2768 | /* Hide any masked bytes to ensure consistent data reporting */ |
2769 | if (ret == 0 && params->mask) { | |
2770 | switch (codec->val_bytes) { | |
2771 | case 1: | |
2772 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
2773 | break; | |
2774 | case 2: | |
2775 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
2776 | &= ~params->mask; | |
2777 | break; | |
2778 | case 4: | |
2779 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
2780 | &= ~params->mask; | |
2781 | break; | |
2782 | default: | |
2783 | return -EINVAL; | |
2784 | } | |
2785 | } | |
2786 | ||
71d08516 MB |
2787 | return ret; |
2788 | } | |
2789 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
2790 | ||
2791 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
2792 | struct snd_ctl_elem_value *ucontrol) | |
2793 | { | |
2794 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2795 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
f831b055 MB |
2796 | int ret, len; |
2797 | unsigned int val; | |
2798 | void *data; | |
71d08516 | 2799 | |
f831b055 MB |
2800 | if (!codec->using_regmap) |
2801 | return -EINVAL; | |
2802 | ||
2803 | data = ucontrol->value.bytes.data; | |
2804 | len = params->num_regs * codec->val_bytes; | |
2805 | ||
2806 | /* | |
2807 | * If we've got a mask then we need to preserve the register | |
2808 | * bits. We shouldn't modify the incoming data so take a | |
2809 | * copy. | |
2810 | */ | |
2811 | if (params->mask) { | |
2812 | ret = regmap_read(codec->control_data, params->base, &val); | |
2813 | if (ret != 0) | |
2814 | return ret; | |
2815 | ||
2816 | val &= params->mask; | |
2817 | ||
2818 | data = kmemdup(data, len, GFP_KERNEL); | |
2819 | if (!data) | |
2820 | return -ENOMEM; | |
2821 | ||
2822 | switch (codec->val_bytes) { | |
2823 | case 1: | |
2824 | ((u8 *)data)[0] &= ~params->mask; | |
2825 | ((u8 *)data)[0] |= val; | |
2826 | break; | |
2827 | case 2: | |
2828 | ((u16 *)data)[0] &= cpu_to_be16(~params->mask); | |
2829 | ((u16 *)data)[0] |= cpu_to_be16(val); | |
2830 | break; | |
2831 | case 4: | |
2832 | ((u32 *)data)[0] &= cpu_to_be32(~params->mask); | |
2833 | ((u32 *)data)[0] |= cpu_to_be32(val); | |
2834 | break; | |
2835 | default: | |
2836 | return -EINVAL; | |
2837 | } | |
2838 | } | |
2839 | ||
2840 | ret = regmap_raw_write(codec->control_data, params->base, | |
2841 | data, len); | |
2842 | ||
2843 | if (params->mask) | |
2844 | kfree(data); | |
71d08516 MB |
2845 | |
2846 | return ret; | |
2847 | } | |
2848 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
2849 | ||
8c6529db LG |
2850 | /** |
2851 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2852 | * @dai: DAI | |
2853 | * @clk_id: DAI specific clock ID | |
2854 | * @freq: new clock frequency in Hz | |
2855 | * @dir: new clock direction - input/output. | |
2856 | * | |
2857 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2858 | */ | |
2859 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2860 | unsigned int freq, int dir) | |
2861 | { | |
f0fba2ad LG |
2862 | if (dai->driver && dai->driver->ops->set_sysclk) |
2863 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2864 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2865 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2866 | freq, dir); |
8c6529db LG |
2867 | else |
2868 | return -EINVAL; | |
2869 | } | |
2870 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2871 | ||
ec4ee52a MB |
2872 | /** |
2873 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2874 | * @codec: CODEC | |
2875 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2876 | * @source: Source for the clock |
ec4ee52a MB |
2877 | * @freq: new clock frequency in Hz |
2878 | * @dir: new clock direction - input/output. | |
2879 | * | |
2880 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2881 | */ | |
2882 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2883 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2884 | { |
2885 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2886 | return codec->driver->set_sysclk(codec, clk_id, source, |
2887 | freq, dir); | |
ec4ee52a MB |
2888 | else |
2889 | return -EINVAL; | |
2890 | } | |
2891 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2892 | ||
8c6529db LG |
2893 | /** |
2894 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2895 | * @dai: DAI | |
ac11a2b3 | 2896 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2897 | * @div: new clock divisor. |
2898 | * | |
2899 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2900 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2901 | * and frame clocks as low as possible to save system power. | |
2902 | */ | |
2903 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2904 | int div_id, int div) | |
2905 | { | |
f0fba2ad LG |
2906 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2907 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2908 | else |
2909 | return -EINVAL; | |
2910 | } | |
2911 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2912 | ||
2913 | /** | |
2914 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2915 | * @dai: DAI | |
2916 | * @pll_id: DAI specific PLL ID | |
85488037 | 2917 | * @source: DAI specific source for the PLL |
8c6529db LG |
2918 | * @freq_in: PLL input clock frequency in Hz |
2919 | * @freq_out: requested PLL output clock frequency in Hz | |
2920 | * | |
2921 | * Configures and enables PLL to generate output clock based on input clock. | |
2922 | */ | |
85488037 MB |
2923 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2924 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2925 | { |
f0fba2ad LG |
2926 | if (dai->driver && dai->driver->ops->set_pll) |
2927 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2928 | freq_in, freq_out); |
ec4ee52a MB |
2929 | else if (dai->codec && dai->codec->driver->set_pll) |
2930 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2931 | freq_in, freq_out); | |
8c6529db LG |
2932 | else |
2933 | return -EINVAL; | |
2934 | } | |
2935 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2936 | ||
ec4ee52a MB |
2937 | /* |
2938 | * snd_soc_codec_set_pll - configure codec PLL. | |
2939 | * @codec: CODEC | |
2940 | * @pll_id: DAI specific PLL ID | |
2941 | * @source: DAI specific source for the PLL | |
2942 | * @freq_in: PLL input clock frequency in Hz | |
2943 | * @freq_out: requested PLL output clock frequency in Hz | |
2944 | * | |
2945 | * Configures and enables PLL to generate output clock based on input clock. | |
2946 | */ | |
2947 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2948 | unsigned int freq_in, unsigned int freq_out) | |
2949 | { | |
2950 | if (codec->driver->set_pll) | |
2951 | return codec->driver->set_pll(codec, pll_id, source, | |
2952 | freq_in, freq_out); | |
2953 | else | |
2954 | return -EINVAL; | |
2955 | } | |
2956 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2957 | ||
8c6529db LG |
2958 | /** |
2959 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2960 | * @dai: DAI | |
8c6529db LG |
2961 | * @fmt: SND_SOC_DAIFMT_ format value. |
2962 | * | |
2963 | * Configures the DAI hardware format and clocking. | |
2964 | */ | |
2965 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2966 | { | |
5e4ba569 | 2967 | if (dai->driver == NULL) |
8c6529db | 2968 | return -EINVAL; |
5e4ba569 SG |
2969 | if (dai->driver->ops->set_fmt == NULL) |
2970 | return -ENOTSUPP; | |
2971 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2972 | } |
2973 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2974 | ||
2975 | /** | |
2976 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2977 | * @dai: DAI | |
a5479e38 DR |
2978 | * @tx_mask: bitmask representing active TX slots. |
2979 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2980 | * @slots: Number of slots in use. |
a5479e38 | 2981 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2982 | * |
2983 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2984 | * specific. | |
2985 | */ | |
2986 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2987 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2988 | { |
f0fba2ad LG |
2989 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2990 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2991 | slots, slot_width); |
8c6529db LG |
2992 | else |
2993 | return -EINVAL; | |
2994 | } | |
2995 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2996 | ||
472df3cb BS |
2997 | /** |
2998 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2999 | * @dai: DAI | |
3000 | * @tx_num: how many TX channels | |
3001 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3002 | * 0~num-1 uses | |
3003 | * @rx_num: how many RX channels | |
3004 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3005 | * 0~num-1 uses | |
3006 | * | |
3007 | * configure the relationship between channel number and TDM slot number. | |
3008 | */ | |
3009 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3010 | unsigned int tx_num, unsigned int *tx_slot, | |
3011 | unsigned int rx_num, unsigned int *rx_slot) | |
3012 | { | |
f0fba2ad LG |
3013 | if (dai->driver && dai->driver->ops->set_channel_map) |
3014 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3015 | rx_num, rx_slot); |
3016 | else | |
3017 | return -EINVAL; | |
3018 | } | |
3019 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3020 | ||
8c6529db LG |
3021 | /** |
3022 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3023 | * @dai: DAI | |
3024 | * @tristate: tristate enable | |
3025 | * | |
3026 | * Tristates the DAI so that others can use it. | |
3027 | */ | |
3028 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3029 | { | |
f0fba2ad LG |
3030 | if (dai->driver && dai->driver->ops->set_tristate) |
3031 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3032 | else |
3033 | return -EINVAL; | |
3034 | } | |
3035 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3036 | ||
3037 | /** | |
3038 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3039 | * @dai: DAI | |
3040 | * @mute: mute enable | |
3041 | * | |
3042 | * Mutes the DAI DAC. | |
3043 | */ | |
3044 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3045 | { | |
f0fba2ad LG |
3046 | if (dai->driver && dai->driver->ops->digital_mute) |
3047 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3048 | else |
3049 | return -EINVAL; | |
3050 | } | |
3051 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3052 | ||
c5af3a2e MB |
3053 | /** |
3054 | * snd_soc_register_card - Register a card with the ASoC core | |
3055 | * | |
ac11a2b3 | 3056 | * @card: Card to register |
c5af3a2e | 3057 | * |
c5af3a2e | 3058 | */ |
70a7ca34 | 3059 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3060 | { |
f0fba2ad LG |
3061 | int i; |
3062 | ||
c5af3a2e MB |
3063 | if (!card->name || !card->dev) |
3064 | return -EINVAL; | |
3065 | ||
5a504963 SW |
3066 | for (i = 0; i < card->num_links; i++) { |
3067 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
3068 | ||
3069 | /* | |
3070 | * Codec must be specified by 1 of name or OF node, | |
3071 | * not both or neither. | |
3072 | */ | |
3073 | if (!!link->codec_name == !!link->codec_of_node) { | |
3074 | dev_err(card->dev, | |
3b09bb82 LG |
3075 | "Neither/both codec name/of_node are set for %s\n", |
3076 | link->name); | |
5a504963 SW |
3077 | return -EINVAL; |
3078 | } | |
3079 | ||
3080 | /* | |
3081 | * Platform may be specified by either name or OF node, but | |
3082 | * can be left unspecified, and a dummy platform will be used. | |
3083 | */ | |
3084 | if (link->platform_name && link->platform_of_node) { | |
3085 | dev_err(card->dev, | |
3b09bb82 | 3086 | "Both platform name/of_node are set for %s\n", link->name); |
5a504963 SW |
3087 | return -EINVAL; |
3088 | } | |
3089 | ||
3090 | /* | |
3091 | * CPU DAI must be specified by 1 of name or OF node, | |
3092 | * not both or neither. | |
3093 | */ | |
3094 | if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) { | |
3095 | dev_err(card->dev, | |
3b09bb82 LG |
3096 | "Neither/both cpu_dai name/of_node are set for %s\n", |
3097 | link->name); | |
5a504963 SW |
3098 | return -EINVAL; |
3099 | } | |
3100 | } | |
3101 | ||
ed77cc12 MB |
3102 | dev_set_drvdata(card->dev, card); |
3103 | ||
111c6419 SW |
3104 | snd_soc_initialize_card_lists(card); |
3105 | ||
150dd2f8 VK |
3106 | soc_init_card_debugfs(card); |
3107 | ||
181a6892 MB |
3108 | card->rtd = devm_kzalloc(card->dev, |
3109 | sizeof(struct snd_soc_pcm_runtime) * | |
3110 | (card->num_links + card->num_aux_devs), | |
3111 | GFP_KERNEL); | |
f0fba2ad LG |
3112 | if (card->rtd == NULL) |
3113 | return -ENOMEM; | |
2eea392d | 3114 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3115 | |
3116 | for (i = 0; i < card->num_links; i++) | |
3117 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3118 | ||
c5af3a2e | 3119 | INIT_LIST_HEAD(&card->list); |
db432b41 | 3120 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 3121 | card->instantiated = 0; |
f0fba2ad | 3122 | mutex_init(&card->mutex); |
c5af3a2e MB |
3123 | |
3124 | mutex_lock(&client_mutex); | |
3125 | list_add(&card->list, &card_list); | |
435c5e25 | 3126 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3127 | mutex_unlock(&client_mutex); |
3128 | ||
3129 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3130 | ||
3131 | return 0; | |
3132 | } | |
70a7ca34 | 3133 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3134 | |
3135 | /** | |
3136 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3137 | * | |
ac11a2b3 | 3138 | * @card: Card to unregister |
c5af3a2e | 3139 | * |
c5af3a2e | 3140 | */ |
70a7ca34 | 3141 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3142 | { |
b0e26485 VK |
3143 | if (card->instantiated) |
3144 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3145 | mutex_lock(&client_mutex); |
3146 | list_del(&card->list); | |
3147 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3148 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3149 | ||
3150 | return 0; | |
3151 | } | |
70a7ca34 | 3152 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3153 | |
f0fba2ad LG |
3154 | /* |
3155 | * Simplify DAI link configuration by removing ".-1" from device names | |
3156 | * and sanitizing names. | |
3157 | */ | |
0b9a214a | 3158 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3159 | { |
3160 | char *found, name[NAME_SIZE]; | |
3161 | int id1, id2; | |
3162 | ||
3163 | if (dev_name(dev) == NULL) | |
3164 | return NULL; | |
3165 | ||
58818a77 | 3166 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3167 | |
3168 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3169 | found = strstr(name, dev->driver->name); | |
3170 | if (found) { | |
3171 | /* get ID */ | |
3172 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3173 | ||
3174 | /* discard ID from name if ID == -1 */ | |
3175 | if (*id == -1) | |
3176 | found[strlen(dev->driver->name)] = '\0'; | |
3177 | } | |
3178 | ||
3179 | } else { | |
3180 | /* I2C component devices are named "bus-addr" */ | |
3181 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3182 | char tmp[NAME_SIZE]; | |
3183 | ||
3184 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3185 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3186 | |
3187 | /* sanitize component name for DAI link creation */ | |
3188 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3189 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3190 | } else |
3191 | *id = 0; | |
3192 | } | |
3193 | ||
3194 | return kstrdup(name, GFP_KERNEL); | |
3195 | } | |
3196 | ||
3197 | /* | |
3198 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3199 | * any ".-1" and using the DAI name (instead of device name). | |
3200 | */ | |
3201 | static inline char *fmt_multiple_name(struct device *dev, | |
3202 | struct snd_soc_dai_driver *dai_drv) | |
3203 | { | |
3204 | if (dai_drv->name == NULL) { | |
0837fc62 | 3205 | pr_err("asoc: error - multiple DAI %s registered with no name\n", |
f0fba2ad LG |
3206 | dev_name(dev)); |
3207 | return NULL; | |
3208 | } | |
3209 | ||
3210 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3211 | } | |
3212 | ||
9115171a MB |
3213 | /** |
3214 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3215 | * | |
ac11a2b3 | 3216 | * @dai: DAI to register |
9115171a | 3217 | */ |
f0fba2ad LG |
3218 | int snd_soc_register_dai(struct device *dev, |
3219 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3220 | { |
f0fba2ad LG |
3221 | struct snd_soc_dai *dai; |
3222 | ||
3223 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3224 | |
f0fba2ad LG |
3225 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3226 | if (dai == NULL) | |
a7393623 | 3227 | return -ENOMEM; |
9115171a | 3228 | |
f0fba2ad LG |
3229 | /* create DAI component name */ |
3230 | dai->name = fmt_single_name(dev, &dai->id); | |
3231 | if (dai->name == NULL) { | |
3232 | kfree(dai); | |
3233 | return -ENOMEM; | |
3234 | } | |
6335d055 | 3235 | |
f0fba2ad LG |
3236 | dai->dev = dev; |
3237 | dai->driver = dai_drv; | |
3238 | if (!dai->driver->ops) | |
3239 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3240 | |
3241 | mutex_lock(&client_mutex); | |
3242 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3243 | snd_soc_instantiate_cards(); |
9115171a MB |
3244 | mutex_unlock(&client_mutex); |
3245 | ||
3246 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3247 | ||
3248 | return 0; | |
3249 | } | |
3250 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3251 | ||
3252 | /** | |
3253 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3254 | * | |
ac11a2b3 | 3255 | * @dai: DAI to unregister |
9115171a | 3256 | */ |
f0fba2ad | 3257 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3258 | { |
f0fba2ad LG |
3259 | struct snd_soc_dai *dai; |
3260 | ||
3261 | list_for_each_entry(dai, &dai_list, list) { | |
3262 | if (dev == dai->dev) | |
3263 | goto found; | |
3264 | } | |
3265 | return; | |
3266 | ||
3267 | found: | |
9115171a MB |
3268 | mutex_lock(&client_mutex); |
3269 | list_del(&dai->list); | |
3270 | mutex_unlock(&client_mutex); | |
3271 | ||
3272 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3273 | kfree(dai->name); |
3274 | kfree(dai); | |
9115171a MB |
3275 | } |
3276 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3277 | ||
3278 | /** | |
3279 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3280 | * | |
ac11a2b3 MB |
3281 | * @dai: Array of DAIs to register |
3282 | * @count: Number of DAIs | |
9115171a | 3283 | */ |
f0fba2ad LG |
3284 | int snd_soc_register_dais(struct device *dev, |
3285 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3286 | { |
f0fba2ad LG |
3287 | struct snd_soc_dai *dai; |
3288 | int i, ret = 0; | |
3289 | ||
720ffa4c | 3290 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3291 | |
3292 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3293 | |
3294 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3295 | if (dai == NULL) { |
3296 | ret = -ENOMEM; | |
3297 | goto err; | |
3298 | } | |
f0fba2ad LG |
3299 | |
3300 | /* create DAI component name */ | |
3301 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3302 | if (dai->name == NULL) { | |
3303 | kfree(dai); | |
3304 | ret = -EINVAL; | |
9115171a | 3305 | goto err; |
f0fba2ad LG |
3306 | } |
3307 | ||
3308 | dai->dev = dev; | |
f0fba2ad | 3309 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3310 | if (dai->driver->id) |
3311 | dai->id = dai->driver->id; | |
3312 | else | |
3313 | dai->id = i; | |
f0fba2ad LG |
3314 | if (!dai->driver->ops) |
3315 | dai->driver->ops = &null_dai_ops; | |
3316 | ||
3317 | mutex_lock(&client_mutex); | |
3318 | list_add(&dai->list, &dai_list); | |
3319 | mutex_unlock(&client_mutex); | |
3320 | ||
3321 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3322 | } |
3323 | ||
1dcb4f38 | 3324 | mutex_lock(&client_mutex); |
f0fba2ad | 3325 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3326 | mutex_unlock(&client_mutex); |
9115171a MB |
3327 | return 0; |
3328 | ||
3329 | err: | |
3330 | for (i--; i >= 0; i--) | |
f0fba2ad | 3331 | snd_soc_unregister_dai(dev); |
9115171a MB |
3332 | |
3333 | return ret; | |
3334 | } | |
3335 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3336 | ||
3337 | /** | |
3338 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3339 | * | |
ac11a2b3 MB |
3340 | * @dai: Array of DAIs to unregister |
3341 | * @count: Number of DAIs | |
9115171a | 3342 | */ |
f0fba2ad | 3343 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3344 | { |
3345 | int i; | |
3346 | ||
3347 | for (i = 0; i < count; i++) | |
f0fba2ad | 3348 | snd_soc_unregister_dai(dev); |
9115171a MB |
3349 | } |
3350 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3351 | ||
12a48a8c MB |
3352 | /** |
3353 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3354 | * | |
ac11a2b3 | 3355 | * @platform: platform to register |
12a48a8c | 3356 | */ |
f0fba2ad LG |
3357 | int snd_soc_register_platform(struct device *dev, |
3358 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3359 | { |
f0fba2ad LG |
3360 | struct snd_soc_platform *platform; |
3361 | ||
3362 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3363 | ||
3364 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3365 | if (platform == NULL) | |
a7393623 | 3366 | return -ENOMEM; |
f0fba2ad LG |
3367 | |
3368 | /* create platform component name */ | |
3369 | platform->name = fmt_single_name(dev, &platform->id); | |
3370 | if (platform->name == NULL) { | |
3371 | kfree(platform); | |
3372 | return -ENOMEM; | |
3373 | } | |
12a48a8c | 3374 | |
f0fba2ad LG |
3375 | platform->dev = dev; |
3376 | platform->driver = platform_drv; | |
b7950641 LG |
3377 | platform->dapm.dev = dev; |
3378 | platform->dapm.platform = platform; | |
64a648c2 | 3379 | platform->dapm.stream_event = platform_drv->stream_event; |
cc22d37e | 3380 | mutex_init(&platform->mutex); |
12a48a8c MB |
3381 | |
3382 | mutex_lock(&client_mutex); | |
3383 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3384 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3385 | mutex_unlock(&client_mutex); |
3386 | ||
3387 | pr_debug("Registered platform '%s'\n", platform->name); | |
3388 | ||
3389 | return 0; | |
3390 | } | |
3391 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3392 | ||
3393 | /** | |
3394 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3395 | * | |
ac11a2b3 | 3396 | * @platform: platform to unregister |
12a48a8c | 3397 | */ |
f0fba2ad | 3398 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3399 | { |
f0fba2ad LG |
3400 | struct snd_soc_platform *platform; |
3401 | ||
3402 | list_for_each_entry(platform, &platform_list, list) { | |
3403 | if (dev == platform->dev) | |
3404 | goto found; | |
3405 | } | |
3406 | return; | |
3407 | ||
3408 | found: | |
12a48a8c MB |
3409 | mutex_lock(&client_mutex); |
3410 | list_del(&platform->list); | |
3411 | mutex_unlock(&client_mutex); | |
3412 | ||
3413 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3414 | kfree(platform->name); |
3415 | kfree(platform); | |
12a48a8c MB |
3416 | } |
3417 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3418 | ||
151ab22c MB |
3419 | static u64 codec_format_map[] = { |
3420 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3421 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3422 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3423 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3424 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3425 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3426 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3427 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3428 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3429 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3430 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3431 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3432 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3433 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3434 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3435 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3436 | }; | |
3437 | ||
3438 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3439 | * the endianness of the data but we're using the CPU format | |
3440 | * definitions which do need to include endianness so we ensure that | |
3441 | * codec DAIs always have both big and little endian variants set. | |
3442 | */ | |
3443 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3444 | { | |
3445 | int i; | |
3446 | ||
3447 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3448 | if (stream->formats & codec_format_map[i]) | |
3449 | stream->formats |= codec_format_map[i]; | |
3450 | } | |
3451 | ||
0d0cf00a MB |
3452 | /** |
3453 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3454 | * | |
ac11a2b3 | 3455 | * @codec: codec to register |
0d0cf00a | 3456 | */ |
f0fba2ad | 3457 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3458 | const struct snd_soc_codec_driver *codec_drv, |
3459 | struct snd_soc_dai_driver *dai_drv, | |
3460 | int num_dai) | |
0d0cf00a | 3461 | { |
3335ddca | 3462 | size_t reg_size; |
f0fba2ad LG |
3463 | struct snd_soc_codec *codec; |
3464 | int ret, i; | |
151ab22c | 3465 | |
f0fba2ad LG |
3466 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3467 | ||
3468 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3469 | if (codec == NULL) | |
3470 | return -ENOMEM; | |
0d0cf00a | 3471 | |
f0fba2ad LG |
3472 | /* create CODEC component name */ |
3473 | codec->name = fmt_single_name(dev, &codec->id); | |
3474 | if (codec->name == NULL) { | |
3475 | kfree(codec); | |
3476 | return -ENOMEM; | |
3477 | } | |
3478 | ||
23bbce34 DP |
3479 | if (codec_drv->compress_type) |
3480 | codec->compress_type = codec_drv->compress_type; | |
3481 | else | |
3482 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3483 | ||
c3acec26 MB |
3484 | codec->write = codec_drv->write; |
3485 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3486 | codec->volatile_register = codec_drv->volatile_register; |
3487 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3488 | codec->writable_register = codec_drv->writable_register; |
5124e69e | 3489 | codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
ce6120cc LG |
3490 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3491 | codec->dapm.dev = dev; | |
3492 | codec->dapm.codec = codec; | |
474b62d6 | 3493 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3494 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3495 | codec->dev = dev; |
3496 | codec->driver = codec_drv; | |
3497 | codec->num_dai = num_dai; | |
3498 | mutex_init(&codec->mutex); | |
ce6120cc | 3499 | |
f0fba2ad LG |
3500 | /* allocate CODEC register cache */ |
3501 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3502 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3503 | codec->reg_size = reg_size; |
3335ddca DP |
3504 | /* it is necessary to make a copy of the default register cache |
3505 | * because in the case of using a compression type that requires | |
3506 | * the default register cache to be marked as __devinitconst the | |
3507 | * kernel might have freed the array by the time we initialize | |
3508 | * the cache. | |
3509 | */ | |
2aa86323 DP |
3510 | if (codec_drv->reg_cache_default) { |
3511 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3512 | reg_size, GFP_KERNEL); | |
3513 | if (!codec->reg_def_copy) { | |
3514 | ret = -ENOMEM; | |
3515 | goto fail; | |
3516 | } | |
f0fba2ad | 3517 | } |
151ab22c MB |
3518 | } |
3519 | ||
1500b7b5 DP |
3520 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3521 | if (!codec->volatile_register) | |
3522 | codec->volatile_register = snd_soc_default_volatile_register; | |
3523 | if (!codec->readable_register) | |
3524 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3525 | if (!codec->writable_register) |
3526 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3527 | } |
3528 | ||
f0fba2ad LG |
3529 | for (i = 0; i < num_dai; i++) { |
3530 | fixup_codec_formats(&dai_drv[i].playback); | |
3531 | fixup_codec_formats(&dai_drv[i].capture); | |
3532 | } | |
3533 | ||
26b01ccd MB |
3534 | /* register any DAIs */ |
3535 | if (num_dai) { | |
3536 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3537 | if (ret < 0) | |
fdf0f54d | 3538 | goto fail; |
26b01ccd | 3539 | } |
f0fba2ad | 3540 | |
0d0cf00a MB |
3541 | mutex_lock(&client_mutex); |
3542 | list_add(&codec->list, &codec_list); | |
3543 | snd_soc_instantiate_cards(); | |
3544 | mutex_unlock(&client_mutex); | |
3545 | ||
3546 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3547 | return 0; |
f0fba2ad | 3548 | |
fdf0f54d | 3549 | fail: |
3335ddca DP |
3550 | kfree(codec->reg_def_copy); |
3551 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3552 | kfree(codec->name); |
3553 | kfree(codec); | |
3554 | return ret; | |
0d0cf00a MB |
3555 | } |
3556 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3557 | ||
3558 | /** | |
3559 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3560 | * | |
ac11a2b3 | 3561 | * @codec: codec to unregister |
0d0cf00a | 3562 | */ |
f0fba2ad | 3563 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3564 | { |
f0fba2ad LG |
3565 | struct snd_soc_codec *codec; |
3566 | int i; | |
3567 | ||
3568 | list_for_each_entry(codec, &codec_list, list) { | |
3569 | if (dev == codec->dev) | |
3570 | goto found; | |
3571 | } | |
3572 | return; | |
3573 | ||
3574 | found: | |
26b01ccd MB |
3575 | if (codec->num_dai) |
3576 | for (i = 0; i < codec->num_dai; i++) | |
3577 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3578 | |
0d0cf00a MB |
3579 | mutex_lock(&client_mutex); |
3580 | list_del(&codec->list); | |
3581 | mutex_unlock(&client_mutex); | |
3582 | ||
3583 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3584 | |
7a30a3db | 3585 | snd_soc_cache_exit(codec); |
3335ddca | 3586 | kfree(codec->reg_def_copy); |
1aafcd4d | 3587 | kfree(codec->name); |
f0fba2ad | 3588 | kfree(codec); |
0d0cf00a MB |
3589 | } |
3590 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3591 | ||
bec4fa05 SW |
3592 | /* Retrieve a card's name from device tree */ |
3593 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3594 | const char *propname) | |
3595 | { | |
3596 | struct device_node *np = card->dev->of_node; | |
3597 | int ret; | |
3598 | ||
3599 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
3600 | /* | |
3601 | * EINVAL means the property does not exist. This is fine providing | |
3602 | * card->name was previously set, which is checked later in | |
3603 | * snd_soc_register_card. | |
3604 | */ | |
3605 | if (ret < 0 && ret != -EINVAL) { | |
3606 | dev_err(card->dev, | |
3607 | "Property '%s' could not be read: %d\n", | |
3608 | propname, ret); | |
3609 | return ret; | |
3610 | } | |
3611 | ||
3612 | return 0; | |
3613 | } | |
3614 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3615 | ||
a4a54dd5 SW |
3616 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3617 | const char *propname) | |
3618 | { | |
3619 | struct device_node *np = card->dev->of_node; | |
3620 | int num_routes; | |
3621 | struct snd_soc_dapm_route *routes; | |
3622 | int i, ret; | |
3623 | ||
3624 | num_routes = of_property_count_strings(np, propname); | |
3625 | if (num_routes & 1) { | |
3626 | dev_err(card->dev, | |
3627 | "Property '%s's length is not even\n", | |
3628 | propname); | |
3629 | return -EINVAL; | |
3630 | } | |
3631 | num_routes /= 2; | |
3632 | if (!num_routes) { | |
3633 | dev_err(card->dev, | |
3634 | "Property '%s's length is zero\n", | |
3635 | propname); | |
3636 | return -EINVAL; | |
3637 | } | |
3638 | ||
3639 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
3640 | GFP_KERNEL); | |
3641 | if (!routes) { | |
3642 | dev_err(card->dev, | |
3643 | "Could not allocate DAPM route table\n"); | |
3644 | return -EINVAL; | |
3645 | } | |
3646 | ||
3647 | for (i = 0; i < num_routes; i++) { | |
3648 | ret = of_property_read_string_index(np, propname, | |
3649 | 2 * i, &routes[i].sink); | |
3650 | if (ret) { | |
3651 | dev_err(card->dev, | |
3652 | "Property '%s' index %d could not be read: %d\n", | |
3653 | propname, 2 * i, ret); | |
3654 | return -EINVAL; | |
3655 | } | |
3656 | ret = of_property_read_string_index(np, propname, | |
3657 | (2 * i) + 1, &routes[i].source); | |
3658 | if (ret) { | |
3659 | dev_err(card->dev, | |
3660 | "Property '%s' index %d could not be read: %d\n", | |
3661 | propname, (2 * i) + 1, ret); | |
3662 | return -EINVAL; | |
3663 | } | |
3664 | } | |
3665 | ||
3666 | card->num_dapm_routes = num_routes; | |
3667 | card->dapm_routes = routes; | |
3668 | ||
3669 | return 0; | |
3670 | } | |
3671 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3672 | ||
c9b3a40f | 3673 | static int __init snd_soc_init(void) |
db2a4165 | 3674 | { |
384c89e2 | 3675 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3676 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3677 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 3678 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 3679 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3680 | } |
c3c5a19a | 3681 | |
8a9dab1a | 3682 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3683 | &codec_list_fops)) |
3684 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3685 | ||
8a9dab1a | 3686 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3687 | &dai_list_fops)) |
3688 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3689 | |
8a9dab1a | 3690 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3691 | &platform_list_fops)) |
3692 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3693 | #endif |
3694 | ||
fb257897 MB |
3695 | snd_soc_util_init(); |
3696 | ||
db2a4165 FM |
3697 | return platform_driver_register(&soc_driver); |
3698 | } | |
4abe8e16 | 3699 | module_init(snd_soc_init); |
db2a4165 | 3700 | |
7d8c16a6 | 3701 | static void __exit snd_soc_exit(void) |
db2a4165 | 3702 | { |
fb257897 MB |
3703 | snd_soc_util_exit(); |
3704 | ||
384c89e2 | 3705 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3706 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3707 | #endif |
3ff3f64b | 3708 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3709 | } |
db2a4165 FM |
3710 | module_exit(snd_soc_exit); |
3711 | ||
3712 | /* Module information */ | |
d331124d | 3713 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3714 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3715 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3716 | MODULE_ALIAS("platform:soc-audio"); |