Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 | 35 | #include <sound/core.h> |
3028eb8c | 36 | #include <sound/jack.h> |
db2a4165 FM |
37 | #include <sound/pcm.h> |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/soc.h> | |
db2a4165 FM |
40 | #include <sound/initval.h> |
41 | ||
a8b1d34f MB |
42 | #define CREATE_TRACE_POINTS |
43 | #include <trace/events/asoc.h> | |
44 | ||
f0fba2ad LG |
45 | #define NAME_SIZE 32 |
46 | ||
db2a4165 | 47 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
48 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e MB |
55 | static DEFINE_MUTEX(client_mutex); |
56 | static LIST_HEAD(card_list); | |
9115171a | 57 | static LIST_HEAD(dai_list); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
c5af3a2e | 60 | |
f0fba2ad | 61 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
2bc9a81e DP |
72 | /* returns the minimum number of bytes needed to represent |
73 | * a particular given value */ | |
74 | static int min_bytes_needed(unsigned long val) | |
75 | { | |
76 | int c = 0; | |
77 | int i; | |
78 | ||
79 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
80 | if (val & (1UL << i)) | |
81 | break; | |
82 | c = (sizeof val * 8) - c; | |
83 | if (!c || (c % 8)) | |
84 | c = (c + 8) / 8; | |
85 | else | |
86 | c /= 8; | |
87 | return c; | |
88 | } | |
89 | ||
13fd179f DP |
90 | /* fill buf which is 'len' bytes with a formatted |
91 | * string of the form 'reg: value\n' */ | |
92 | static int format_register_str(struct snd_soc_codec *codec, | |
93 | unsigned int reg, char *buf, size_t len) | |
94 | { | |
00b317a4 SW |
95 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
96 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
97 | int ret; |
98 | char tmpbuf[len + 1]; | |
99 | char regbuf[regsize + 1]; | |
100 | ||
101 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
102 | * try to abuse this function */ | |
103 | WARN_ON(len > 63); | |
104 | ||
105 | /* +2 for ': ' and + 1 for '\n' */ | |
106 | if (wordsize + regsize + 2 + 1 != len) | |
107 | return -EINVAL; | |
108 | ||
109 | ret = snd_soc_read(codec , reg); | |
110 | if (ret < 0) { | |
111 | memset(regbuf, 'X', regsize); | |
112 | regbuf[regsize] = '\0'; | |
113 | } else { | |
114 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
115 | } | |
116 | ||
117 | /* prepare the buffer */ | |
118 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
119 | /* copy it back to the caller without the '\0' */ | |
120 | memcpy(buf, tmpbuf, len); | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
2624d5fa | 125 | /* codec register dump */ |
13fd179f DP |
126 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
127 | size_t count, loff_t pos) | |
2624d5fa | 128 | { |
13fd179f | 129 | int i, step = 1; |
2bc9a81e | 130 | int wordsize, regsize; |
13fd179f DP |
131 | int len; |
132 | size_t total = 0; | |
133 | loff_t p = 0; | |
2bc9a81e | 134 | |
00b317a4 SW |
135 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
136 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 137 | |
13fd179f DP |
138 | len = wordsize + regsize + 2 + 1; |
139 | ||
f0fba2ad | 140 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
141 | return 0; |
142 | ||
f0fba2ad LG |
143 | if (codec->driver->reg_cache_step) |
144 | step = codec->driver->reg_cache_step; | |
2624d5fa | 145 | |
f0fba2ad | 146 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 147 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa | 148 | continue; |
f0fba2ad LG |
149 | if (codec->driver->display_register) { |
150 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 151 | PAGE_SIZE - count, i); |
5164d74d | 152 | } else { |
13fd179f DP |
153 | /* only support larger than PAGE_SIZE bytes debugfs |
154 | * entries for the default case */ | |
155 | if (p >= pos) { | |
156 | if (total + len >= count - 1) | |
157 | break; | |
158 | format_register_str(codec, i, buf + total, len); | |
159 | total += len; | |
160 | } | |
161 | p += len; | |
5164d74d | 162 | } |
2624d5fa MB |
163 | } |
164 | ||
13fd179f | 165 | total = min(total, count - 1); |
2624d5fa | 166 | |
13fd179f | 167 | return total; |
2624d5fa | 168 | } |
13fd179f | 169 | |
2624d5fa MB |
170 | static ssize_t codec_reg_show(struct device *dev, |
171 | struct device_attribute *attr, char *buf) | |
172 | { | |
f0fba2ad LG |
173 | struct snd_soc_pcm_runtime *rtd = |
174 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
175 | ||
13fd179f | 176 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
177 | } |
178 | ||
179 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
180 | ||
dbe21408 MB |
181 | static ssize_t pmdown_time_show(struct device *dev, |
182 | struct device_attribute *attr, char *buf) | |
183 | { | |
f0fba2ad LG |
184 | struct snd_soc_pcm_runtime *rtd = |
185 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 186 | |
f0fba2ad | 187 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
188 | } |
189 | ||
190 | static ssize_t pmdown_time_set(struct device *dev, | |
191 | struct device_attribute *attr, | |
192 | const char *buf, size_t count) | |
193 | { | |
f0fba2ad LG |
194 | struct snd_soc_pcm_runtime *rtd = |
195 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 196 | int ret; |
dbe21408 | 197 | |
c593b520 MB |
198 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
199 | if (ret) | |
200 | return ret; | |
dbe21408 MB |
201 | |
202 | return count; | |
203 | } | |
204 | ||
205 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
206 | ||
2624d5fa MB |
207 | #ifdef CONFIG_DEBUG_FS |
208 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
209 | { | |
210 | file->private_data = inode->i_private; | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
13fd179f | 215 | size_t count, loff_t *ppos) |
2624d5fa MB |
216 | { |
217 | ssize_t ret; | |
218 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
219 | char *buf; |
220 | ||
221 | if (*ppos < 0 || !count) | |
222 | return -EINVAL; | |
223 | ||
224 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
225 | if (!buf) |
226 | return -ENOMEM; | |
13fd179f DP |
227 | |
228 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
229 | if (ret >= 0) { | |
230 | if (copy_to_user(user_buf, buf, ret)) { | |
231 | kfree(buf); | |
232 | return -EFAULT; | |
233 | } | |
234 | *ppos += ret; | |
235 | } | |
236 | ||
2624d5fa MB |
237 | kfree(buf); |
238 | return ret; | |
239 | } | |
240 | ||
241 | static ssize_t codec_reg_write_file(struct file *file, | |
242 | const char __user *user_buf, size_t count, loff_t *ppos) | |
243 | { | |
244 | char buf[32]; | |
245 | int buf_size; | |
246 | char *start = buf; | |
247 | unsigned long reg, value; | |
248 | int step = 1; | |
249 | struct snd_soc_codec *codec = file->private_data; | |
250 | ||
251 | buf_size = min(count, (sizeof(buf)-1)); | |
252 | if (copy_from_user(buf, user_buf, buf_size)) | |
253 | return -EFAULT; | |
254 | buf[buf_size] = 0; | |
255 | ||
f0fba2ad LG |
256 | if (codec->driver->reg_cache_step) |
257 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
258 | |
259 | while (*start == ' ') | |
260 | start++; | |
261 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
262 | while (*start == ' ') |
263 | start++; | |
264 | if (strict_strtoul(start, 16, &value)) | |
265 | return -EINVAL; | |
0d51a9cb MB |
266 | |
267 | /* Userspace has been fiddling around behind the kernel's back */ | |
268 | add_taint(TAINT_USER); | |
269 | ||
e4f078d8 | 270 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
271 | return buf_size; |
272 | } | |
273 | ||
274 | static const struct file_operations codec_reg_fops = { | |
275 | .open = codec_reg_open_file, | |
276 | .read = codec_reg_read_file, | |
277 | .write = codec_reg_write_file, | |
6038f373 | 278 | .llseek = default_llseek, |
2624d5fa MB |
279 | }; |
280 | ||
281 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
282 | { | |
d6ce4cf3 JN |
283 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
284 | ||
285 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
286 | debugfs_card_root); | |
2624d5fa MB |
287 | if (!codec->debugfs_codec_root) { |
288 | printk(KERN_WARNING | |
289 | "ASoC: Failed to create codec debugfs directory\n"); | |
290 | return; | |
291 | } | |
292 | ||
aaee8ef1 MB |
293 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
294 | &codec->cache_sync); | |
295 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
296 | &codec->cache_only); | |
297 | ||
2624d5fa MB |
298 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
299 | codec->debugfs_codec_root, | |
300 | codec, &codec_reg_fops); | |
301 | if (!codec->debugfs_reg) | |
302 | printk(KERN_WARNING | |
303 | "ASoC: Failed to create codec register debugfs file\n"); | |
304 | ||
8eecaf62 | 305 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
306 | } |
307 | ||
308 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
309 | { | |
310 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
311 | } | |
312 | ||
c3c5a19a MB |
313 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
314 | size_t count, loff_t *ppos) | |
315 | { | |
316 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 317 | ssize_t len, ret = 0; |
c3c5a19a MB |
318 | struct snd_soc_codec *codec; |
319 | ||
320 | if (!buf) | |
321 | return -ENOMEM; | |
322 | ||
2b194f9d MB |
323 | list_for_each_entry(codec, &codec_list, list) { |
324 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
325 | codec->name); | |
326 | if (len >= 0) | |
327 | ret += len; | |
328 | if (ret > PAGE_SIZE) { | |
329 | ret = PAGE_SIZE; | |
330 | break; | |
331 | } | |
332 | } | |
c3c5a19a MB |
333 | |
334 | if (ret >= 0) | |
335 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
336 | ||
337 | kfree(buf); | |
338 | ||
339 | return ret; | |
340 | } | |
341 | ||
342 | static const struct file_operations codec_list_fops = { | |
343 | .read = codec_list_read_file, | |
344 | .llseek = default_llseek,/* read accesses f_pos */ | |
345 | }; | |
346 | ||
f3208780 MB |
347 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
348 | size_t count, loff_t *ppos) | |
349 | { | |
350 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 351 | ssize_t len, ret = 0; |
f3208780 MB |
352 | struct snd_soc_dai *dai; |
353 | ||
354 | if (!buf) | |
355 | return -ENOMEM; | |
356 | ||
2b194f9d MB |
357 | list_for_each_entry(dai, &dai_list, list) { |
358 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
359 | if (len >= 0) | |
360 | ret += len; | |
361 | if (ret > PAGE_SIZE) { | |
362 | ret = PAGE_SIZE; | |
363 | break; | |
364 | } | |
365 | } | |
f3208780 | 366 | |
2b194f9d | 367 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
368 | |
369 | kfree(buf); | |
370 | ||
371 | return ret; | |
372 | } | |
373 | ||
374 | static const struct file_operations dai_list_fops = { | |
375 | .read = dai_list_read_file, | |
376 | .llseek = default_llseek,/* read accesses f_pos */ | |
377 | }; | |
378 | ||
19c7ac27 MB |
379 | static ssize_t platform_list_read_file(struct file *file, |
380 | char __user *user_buf, | |
381 | size_t count, loff_t *ppos) | |
382 | { | |
383 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 384 | ssize_t len, ret = 0; |
19c7ac27 MB |
385 | struct snd_soc_platform *platform; |
386 | ||
387 | if (!buf) | |
388 | return -ENOMEM; | |
389 | ||
2b194f9d MB |
390 | list_for_each_entry(platform, &platform_list, list) { |
391 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
392 | platform->name); | |
393 | if (len >= 0) | |
394 | ret += len; | |
395 | if (ret > PAGE_SIZE) { | |
396 | ret = PAGE_SIZE; | |
397 | break; | |
398 | } | |
399 | } | |
19c7ac27 | 400 | |
2b194f9d | 401 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
402 | |
403 | kfree(buf); | |
404 | ||
405 | return ret; | |
406 | } | |
407 | ||
408 | static const struct file_operations platform_list_fops = { | |
409 | .read = platform_list_read_file, | |
410 | .llseek = default_llseek,/* read accesses f_pos */ | |
411 | }; | |
412 | ||
a6052154 JN |
413 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
414 | { | |
415 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 416 | snd_soc_debugfs_root); |
3a45b867 | 417 | if (!card->debugfs_card_root) { |
a6052154 JN |
418 | dev_warn(card->dev, |
419 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
420 | return; |
421 | } | |
422 | ||
423 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
424 | card->debugfs_card_root, | |
425 | &card->pop_time); | |
426 | if (!card->debugfs_pop_time) | |
427 | dev_warn(card->dev, | |
428 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
429 | } |
430 | ||
431 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
432 | { | |
433 | debugfs_remove_recursive(card->debugfs_card_root); | |
434 | } | |
435 | ||
2624d5fa MB |
436 | #else |
437 | ||
438 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
439 | { | |
440 | } | |
441 | ||
442 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
443 | { | |
444 | } | |
b95fccbc AL |
445 | |
446 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
447 | { | |
448 | } | |
449 | ||
450 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
451 | { | |
452 | } | |
2624d5fa MB |
453 | #endif |
454 | ||
db2a4165 FM |
455 | #ifdef CONFIG_SND_SOC_AC97_BUS |
456 | /* unregister ac97 codec */ | |
457 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
458 | { | |
459 | if (codec->ac97->dev.bus) | |
460 | device_unregister(&codec->ac97->dev); | |
461 | return 0; | |
462 | } | |
463 | ||
464 | /* stop no dev release warning */ | |
465 | static void soc_ac97_device_release(struct device *dev){} | |
466 | ||
467 | /* register ac97 codec to bus */ | |
468 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
469 | { | |
470 | int err; | |
471 | ||
472 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 473 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
474 | codec->ac97->dev.release = soc_ac97_device_release; |
475 | ||
bb072bf0 | 476 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 477 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
478 | err = device_register(&codec->ac97->dev); |
479 | if (err < 0) { | |
480 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
481 | codec->ac97->dev.bus = NULL; | |
482 | return err; | |
483 | } | |
484 | return 0; | |
485 | } | |
486 | #endif | |
487 | ||
06f409d7 MB |
488 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
489 | { | |
490 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
491 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
492 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
493 | int ret; |
494 | ||
4f333b20 MB |
495 | if (!codec_dai->driver->symmetric_rates && |
496 | !cpu_dai->driver->symmetric_rates && | |
497 | !rtd->dai_link->symmetric_rates) | |
498 | return 0; | |
499 | ||
c4ef8786 MB |
500 | /* This can happen if multiple streams are starting simultaneously - |
501 | * the second can need to get its constraints before the first has | |
502 | * picked a rate. Complain and allow the application to carry on. | |
503 | */ | |
504 | if (!rtd->rate) { | |
505 | dev_warn(&rtd->dev, | |
506 | "Not enforcing symmetric_rates due to race\n"); | |
507 | return 0; | |
508 | } | |
509 | ||
4f333b20 MB |
510 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", rtd->rate); |
511 | ||
512 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
513 | SNDRV_PCM_HW_PARAM_RATE, | |
514 | rtd->rate, rtd->rate); | |
515 | if (ret < 0) { | |
516 | dev_err(&rtd->dev, | |
517 | "Unable to apply rate symmetry constraint: %d\n", ret); | |
518 | return ret; | |
06f409d7 MB |
519 | } |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
db2a4165 FM |
524 | /* |
525 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
526 | * then initialized and any private data can be allocated. This also calls | |
527 | * startup for the cpu DAI, platform, machine and codec DAI. | |
528 | */ | |
529 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
530 | { | |
531 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 532 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
533 | struct snd_soc_platform *platform = rtd->platform; |
534 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
535 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
536 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
537 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
538 | int ret = 0; |
539 | ||
540 | mutex_lock(&pcm_mutex); | |
541 | ||
542 | /* startup the audio subsystem */ | |
f0fba2ad LG |
543 | if (cpu_dai->driver->ops->startup) { |
544 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
545 | if (ret < 0) { |
546 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 547 | cpu_dai->name); |
db2a4165 FM |
548 | goto out; |
549 | } | |
550 | } | |
551 | ||
8842c72a | 552 | if (platform->driver->ops && platform->driver->ops->open) { |
f0fba2ad | 553 | ret = platform->driver->ops->open(substream); |
db2a4165 FM |
554 | if (ret < 0) { |
555 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
556 | goto platform_err; | |
557 | } | |
558 | } | |
559 | ||
f0fba2ad LG |
560 | if (codec_dai->driver->ops->startup) { |
561 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 562 | if (ret < 0) { |
cb666e5b LG |
563 | printk(KERN_ERR "asoc: can't open codec %s\n", |
564 | codec_dai->name); | |
565 | goto codec_dai_err; | |
db2a4165 FM |
566 | } |
567 | } | |
568 | ||
f0fba2ad LG |
569 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
570 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 571 | if (ret < 0) { |
f0fba2ad | 572 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 573 | goto machine_err; |
db2a4165 FM |
574 | } |
575 | } | |
576 | ||
a00f90f9 | 577 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
578 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
579 | runtime->hw.rate_min = | |
f0fba2ad LG |
580 | max(codec_dai_drv->playback.rate_min, |
581 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 582 | runtime->hw.rate_max = |
f0fba2ad LG |
583 | min(codec_dai_drv->playback.rate_max, |
584 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 585 | runtime->hw.channels_min = |
f0fba2ad LG |
586 | max(codec_dai_drv->playback.channels_min, |
587 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 588 | runtime->hw.channels_max = |
f0fba2ad LG |
589 | min(codec_dai_drv->playback.channels_max, |
590 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 591 | runtime->hw.formats = |
f0fba2ad | 592 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 593 | runtime->hw.rates = |
f0fba2ad LG |
594 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
595 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 596 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
597 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
598 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 599 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 600 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
601 | } else { |
602 | runtime->hw.rate_min = | |
f0fba2ad LG |
603 | max(codec_dai_drv->capture.rate_min, |
604 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 605 | runtime->hw.rate_max = |
f0fba2ad LG |
606 | min(codec_dai_drv->capture.rate_max, |
607 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 608 | runtime->hw.channels_min = |
f0fba2ad LG |
609 | max(codec_dai_drv->capture.channels_min, |
610 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 611 | runtime->hw.channels_max = |
f0fba2ad LG |
612 | min(codec_dai_drv->capture.channels_max, |
613 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 614 | runtime->hw.formats = |
f0fba2ad | 615 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 616 | runtime->hw.rates = |
f0fba2ad LG |
617 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
618 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 619 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
620 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
621 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 622 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 623 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
624 | } |
625 | ||
c51def65 | 626 | ret = -EINVAL; |
db2a4165 FM |
627 | snd_pcm_limit_hw_rates(runtime); |
628 | if (!runtime->hw.rates) { | |
629 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 630 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 631 | goto config_err; |
db2a4165 FM |
632 | } |
633 | if (!runtime->hw.formats) { | |
634 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 635 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 636 | goto config_err; |
db2a4165 | 637 | } |
b04cfcf7 LG |
638 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || |
639 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
db2a4165 | 640 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", |
f0fba2ad | 641 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 642 | goto config_err; |
db2a4165 FM |
643 | } |
644 | ||
06f409d7 MB |
645 | /* Symmetry only applies if we've already got an active stream. */ |
646 | if (cpu_dai->active || codec_dai->active) { | |
647 | ret = soc_pcm_apply_symmetry(substream); | |
648 | if (ret != 0) | |
bb1c0478 | 649 | goto config_err; |
06f409d7 MB |
650 | } |
651 | ||
f0fba2ad LG |
652 | pr_debug("asoc: %s <-> %s info:\n", |
653 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
654 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
655 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
656 | runtime->hw.channels_max); | |
657 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
658 | runtime->hw.rate_max); | |
db2a4165 | 659 | |
14dc5734 | 660 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
661 | cpu_dai->playback_active++; |
662 | codec_dai->playback_active++; | |
14dc5734 | 663 | } else { |
f0fba2ad LG |
664 | cpu_dai->capture_active++; |
665 | codec_dai->capture_active++; | |
14dc5734 JB |
666 | } |
667 | cpu_dai->active++; | |
668 | codec_dai->active++; | |
f0fba2ad | 669 | rtd->codec->active++; |
db2a4165 FM |
670 | mutex_unlock(&pcm_mutex); |
671 | return 0; | |
672 | ||
bb1c0478 | 673 | config_err: |
f0fba2ad LG |
674 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
675 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 676 | |
bb1c0478 | 677 | machine_err: |
f0fba2ad LG |
678 | if (codec_dai->driver->ops->shutdown) |
679 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 680 | |
cb666e5b | 681 | codec_dai_err: |
8842c72a | 682 | if (platform->driver->ops && platform->driver->ops->close) |
f0fba2ad | 683 | platform->driver->ops->close(substream); |
db2a4165 FM |
684 | |
685 | platform_err: | |
f0fba2ad LG |
686 | if (cpu_dai->driver->ops->shutdown) |
687 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
688 | out: |
689 | mutex_unlock(&pcm_mutex); | |
690 | return ret; | |
691 | } | |
692 | ||
693 | /* | |
3a4fa0a2 | 694 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
695 | * This is to ensure there are no pops or clicks in between any music tracks |
696 | * due to DAPM power cycling. | |
697 | */ | |
4484bb2e | 698 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 699 | { |
f0fba2ad LG |
700 | struct snd_soc_pcm_runtime *rtd = |
701 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
702 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
703 | |
704 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
705 | |
706 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
707 | codec_dai->driver->playback.stream_name, | |
708 | codec_dai->playback_active ? "active" : "inactive", | |
709 | codec_dai->pop_wait ? "yes" : "no"); | |
710 | ||
711 | /* are we waiting on this codec DAI stream */ | |
712 | if (codec_dai->pop_wait == 1) { | |
713 | codec_dai->pop_wait = 0; | |
714 | snd_soc_dapm_stream_event(rtd, | |
715 | codec_dai->driver->playback.stream_name, | |
716 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 717 | } |
f0fba2ad | 718 | |
db2a4165 FM |
719 | mutex_unlock(&pcm_mutex); |
720 | } | |
721 | ||
722 | /* | |
723 | * Called by ALSA when a PCM substream is closed. Private data can be | |
724 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
725 | * shutdown. | |
726 | */ | |
727 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
728 | { | |
729 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
730 | struct snd_soc_platform *platform = rtd->platform; |
731 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
732 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
733 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
734 | |
735 | mutex_lock(&pcm_mutex); | |
736 | ||
14dc5734 | 737 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
738 | cpu_dai->playback_active--; |
739 | codec_dai->playback_active--; | |
14dc5734 | 740 | } else { |
f0fba2ad LG |
741 | cpu_dai->capture_active--; |
742 | codec_dai->capture_active--; | |
db2a4165 | 743 | } |
14dc5734 JB |
744 | |
745 | cpu_dai->active--; | |
746 | codec_dai->active--; | |
db2a4165 FM |
747 | codec->active--; |
748 | ||
6010b2da MB |
749 | /* Muting the DAC suppresses artifacts caused during digital |
750 | * shutdown, for example from stopping clocks. | |
751 | */ | |
752 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
753 | snd_soc_dai_digital_mute(codec_dai, 1); | |
754 | ||
f0fba2ad LG |
755 | if (cpu_dai->driver->ops->shutdown) |
756 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 757 | |
f0fba2ad LG |
758 | if (codec_dai->driver->ops->shutdown) |
759 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 760 | |
f0fba2ad LG |
761 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
762 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 763 | |
8842c72a | 764 | if (platform->driver->ops && platform->driver->ops->close) |
f0fba2ad LG |
765 | platform->driver->ops->close(substream); |
766 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
767 | |
768 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
769 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 770 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
771 | schedule_delayed_work(&rtd->delayed_work, |
772 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
773 | } else { |
774 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
775 | snd_soc_dapm_stream_event(rtd, |
776 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 777 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
778 | } |
779 | ||
780 | mutex_unlock(&pcm_mutex); | |
781 | return 0; | |
782 | } | |
783 | ||
784 | /* | |
785 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
786 | * rate, etc. This function is non atomic and can be called multiple times, | |
787 | * it can refer to the runtime info. | |
788 | */ | |
789 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
790 | { | |
791 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
792 | struct snd_soc_platform *platform = rtd->platform; |
793 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
794 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
795 | int ret = 0; |
796 | ||
797 | mutex_lock(&pcm_mutex); | |
cb666e5b | 798 | |
f0fba2ad LG |
799 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
800 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
801 | if (ret < 0) { |
802 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
803 | goto out; | |
804 | } | |
805 | } | |
806 | ||
8842c72a | 807 | if (platform->driver->ops && platform->driver->ops->prepare) { |
f0fba2ad | 808 | ret = platform->driver->ops->prepare(substream); |
a71a468a LG |
809 | if (ret < 0) { |
810 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 811 | goto out; |
a71a468a | 812 | } |
db2a4165 FM |
813 | } |
814 | ||
f0fba2ad LG |
815 | if (codec_dai->driver->ops->prepare) { |
816 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
817 | if (ret < 0) { |
818 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 819 | goto out; |
a71a468a | 820 | } |
db2a4165 FM |
821 | } |
822 | ||
f0fba2ad LG |
823 | if (cpu_dai->driver->ops->prepare) { |
824 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
825 | if (ret < 0) { |
826 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
827 | goto out; | |
828 | } | |
829 | } | |
db2a4165 | 830 | |
d45f6219 MB |
831 | /* cancel any delayed stream shutdown that is pending */ |
832 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
833 | codec_dai->pop_wait) { | |
834 | codec_dai->pop_wait = 0; | |
f0fba2ad | 835 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 836 | } |
db2a4165 | 837 | |
452c5eaa | 838 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
839 | snd_soc_dapm_stream_event(rtd, |
840 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
841 | SND_SOC_DAPM_STREAM_START); |
842 | else | |
f0fba2ad LG |
843 | snd_soc_dapm_stream_event(rtd, |
844 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 845 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 846 | |
452c5eaa | 847 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
848 | |
849 | out: | |
850 | mutex_unlock(&pcm_mutex); | |
851 | return ret; | |
852 | } | |
853 | ||
854 | /* | |
855 | * Called by ALSA when the hardware params are set by application. This | |
856 | * function can also be called multiple times and can allocate buffers | |
857 | * (using snd_pcm_lib_* ). It's non-atomic. | |
858 | */ | |
859 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
860 | struct snd_pcm_hw_params *params) | |
861 | { | |
862 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
863 | struct snd_soc_platform *platform = rtd->platform; |
864 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
865 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
866 | int ret = 0; |
867 | ||
868 | mutex_lock(&pcm_mutex); | |
869 | ||
f0fba2ad LG |
870 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
871 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
872 | if (ret < 0) { |
873 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 874 | goto out; |
cb666e5b | 875 | } |
db2a4165 FM |
876 | } |
877 | ||
f0fba2ad LG |
878 | if (codec_dai->driver->ops->hw_params) { |
879 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
880 | if (ret < 0) { |
881 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
882 | codec_dai->name); |
883 | goto codec_err; | |
db2a4165 FM |
884 | } |
885 | } | |
886 | ||
f0fba2ad LG |
887 | if (cpu_dai->driver->ops->hw_params) { |
888 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 889 | if (ret < 0) { |
3ff3f64b | 890 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 891 | cpu_dai->name); |
db2a4165 FM |
892 | goto interface_err; |
893 | } | |
894 | } | |
895 | ||
8842c72a | 896 | if (platform->driver->ops && platform->driver->ops->hw_params) { |
f0fba2ad | 897 | ret = platform->driver->ops->hw_params(substream, params); |
db2a4165 | 898 | if (ret < 0) { |
3ff3f64b | 899 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
900 | platform->name); |
901 | goto platform_err; | |
902 | } | |
903 | } | |
904 | ||
f0fba2ad | 905 | rtd->rate = params_rate(params); |
06f409d7 | 906 | |
db2a4165 FM |
907 | out: |
908 | mutex_unlock(&pcm_mutex); | |
909 | return ret; | |
910 | ||
db2a4165 | 911 | platform_err: |
f0fba2ad LG |
912 | if (cpu_dai->driver->ops->hw_free) |
913 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
914 | |
915 | interface_err: | |
f0fba2ad LG |
916 | if (codec_dai->driver->ops->hw_free) |
917 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
918 | |
919 | codec_err: | |
f0fba2ad LG |
920 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
921 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
922 | |
923 | mutex_unlock(&pcm_mutex); | |
924 | return ret; | |
925 | } | |
926 | ||
927 | /* | |
a00f90f9 | 928 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
929 | */ |
930 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
931 | { | |
932 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
933 | struct snd_soc_platform *platform = rtd->platform; |
934 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
935 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
936 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
937 | |
938 | mutex_lock(&pcm_mutex); | |
939 | ||
940 | /* apply codec digital mute */ | |
8c6529db LG |
941 | if (!codec->active) |
942 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
943 | |
944 | /* free any machine hw params */ | |
f0fba2ad LG |
945 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
946 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
947 | |
948 | /* free any DMA resources */ | |
8842c72a | 949 | if (platform->driver->ops && platform->driver->ops->hw_free) |
f0fba2ad | 950 | platform->driver->ops->hw_free(substream); |
db2a4165 | 951 | |
a00f90f9 | 952 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
953 | if (codec_dai->driver->ops->hw_free) |
954 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 955 | |
f0fba2ad LG |
956 | if (cpu_dai->driver->ops->hw_free) |
957 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
958 | |
959 | mutex_unlock(&pcm_mutex); | |
960 | return 0; | |
961 | } | |
962 | ||
963 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
964 | { | |
965 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
966 | struct snd_soc_platform *platform = rtd->platform; |
967 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
968 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
969 | int ret; |
970 | ||
f0fba2ad LG |
971 | if (codec_dai->driver->ops->trigger) { |
972 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
973 | if (ret < 0) |
974 | return ret; | |
975 | } | |
976 | ||
8842c72a | 977 | if (platform->driver->ops && platform->driver->ops->trigger) { |
f0fba2ad | 978 | ret = platform->driver->ops->trigger(substream, cmd); |
db2a4165 FM |
979 | if (ret < 0) |
980 | return ret; | |
981 | } | |
982 | ||
f0fba2ad LG |
983 | if (cpu_dai->driver->ops->trigger) { |
984 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
985 | if (ret < 0) |
986 | return ret; | |
987 | } | |
988 | return 0; | |
989 | } | |
990 | ||
377b6f62 PU |
991 | /* |
992 | * soc level wrapper for pointer callback | |
258020d0 PU |
993 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
994 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
995 | */ |
996 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
997 | { | |
998 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
999 | struct snd_soc_platform *platform = rtd->platform; |
1000 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1001 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 1002 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 1003 | snd_pcm_uframes_t offset = 0; |
258020d0 | 1004 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 1005 | |
8842c72a | 1006 | if (platform->driver->ops && platform->driver->ops->pointer) |
f0fba2ad | 1007 | offset = platform->driver->ops->pointer(substream); |
377b6f62 | 1008 | |
f0fba2ad LG |
1009 | if (cpu_dai->driver->ops->delay) |
1010 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 1011 | |
f0fba2ad LG |
1012 | if (codec_dai->driver->ops->delay) |
1013 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 1014 | |
f0fba2ad LG |
1015 | if (platform->driver->delay) |
1016 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
1017 | |
1018 | runtime->delay = delay; | |
1019 | ||
377b6f62 PU |
1020 | return offset; |
1021 | } | |
1022 | ||
db2a4165 FM |
1023 | /* ASoC PCM operations */ |
1024 | static struct snd_pcm_ops soc_pcm_ops = { | |
1025 | .open = soc_pcm_open, | |
1026 | .close = soc_codec_close, | |
1027 | .hw_params = soc_pcm_hw_params, | |
1028 | .hw_free = soc_pcm_hw_free, | |
1029 | .prepare = soc_pcm_prepare, | |
1030 | .trigger = soc_pcm_trigger, | |
377b6f62 | 1031 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
1032 | }; |
1033 | ||
6f8ab4ac | 1034 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 1035 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 1036 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 1037 | { |
6f8ab4ac | 1038 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 1039 | struct snd_soc_codec *codec; |
db2a4165 FM |
1040 | int i; |
1041 | ||
e3509ff0 DM |
1042 | /* If the initialization of this soc device failed, there is no codec |
1043 | * associated with it. Just bail out in this case. | |
1044 | */ | |
f0fba2ad | 1045 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
1046 | return 0; |
1047 | ||
6ed25978 AG |
1048 | /* Due to the resume being scheduled into a workqueue we could |
1049 | * suspend before that's finished - wait for it to complete. | |
1050 | */ | |
f0fba2ad LG |
1051 | snd_power_lock(card->snd_card); |
1052 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
1053 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
1054 | |
1055 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 1056 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 1057 | |
a00f90f9 | 1058 | /* mute any active DACs */ |
f0fba2ad LG |
1059 | for (i = 0; i < card->num_rtd; i++) { |
1060 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1061 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1062 | |
f0fba2ad | 1063 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1064 | continue; |
1065 | ||
f0fba2ad LG |
1066 | if (drv->ops->digital_mute && dai->playback_active) |
1067 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1068 | } |
1069 | ||
4ccab3e7 | 1070 | /* suspend all pcms */ |
f0fba2ad LG |
1071 | for (i = 0; i < card->num_rtd; i++) { |
1072 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1073 | continue; |
1074 | ||
f0fba2ad | 1075 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1076 | } |
4ccab3e7 | 1077 | |
87506549 | 1078 | if (card->suspend_pre) |
70b2ac12 | 1079 | card->suspend_pre(card); |
db2a4165 | 1080 | |
f0fba2ad LG |
1081 | for (i = 0; i < card->num_rtd; i++) { |
1082 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1083 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1084 | |
f0fba2ad | 1085 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1086 | continue; |
1087 | ||
f0fba2ad LG |
1088 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1089 | cpu_dai->driver->suspend(cpu_dai); | |
1090 | if (platform->driver->suspend && !platform->suspended) { | |
1091 | platform->driver->suspend(cpu_dai); | |
1092 | platform->suspended = 1; | |
1093 | } | |
db2a4165 FM |
1094 | } |
1095 | ||
1096 | /* close any waiting streams and save state */ | |
f0fba2ad | 1097 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1098 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1099 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1100 | } |
db2a4165 | 1101 | |
f0fba2ad LG |
1102 | for (i = 0; i < card->num_rtd; i++) { |
1103 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1104 | |
f0fba2ad | 1105 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1106 | continue; |
1107 | ||
f0fba2ad LG |
1108 | if (driver->playback.stream_name != NULL) |
1109 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1110 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1111 | |
1112 | if (driver->capture.stream_name != NULL) | |
1113 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1114 | SND_SOC_DAPM_STREAM_SUSPEND); |
1115 | } | |
1116 | ||
f0fba2ad | 1117 | /* suspend all CODECs */ |
2eea392d | 1118 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1119 | /* If there are paths active then the CODEC will be held with |
1120 | * bias _ON and should not be suspended. */ | |
1121 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1122 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1123 | case SND_SOC_BIAS_STANDBY: |
1124 | case SND_SOC_BIAS_OFF: | |
1125 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1126 | codec->suspended = 1; | |
1127 | break; | |
1128 | default: | |
1129 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1130 | break; | |
1131 | } | |
1547aba9 MB |
1132 | } |
1133 | } | |
db2a4165 | 1134 | |
f0fba2ad LG |
1135 | for (i = 0; i < card->num_rtd; i++) { |
1136 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1137 | |
f0fba2ad | 1138 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1139 | continue; |
1140 | ||
f0fba2ad LG |
1141 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1142 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1143 | } |
1144 | ||
87506549 | 1145 | if (card->suspend_post) |
70b2ac12 | 1146 | card->suspend_post(card); |
db2a4165 FM |
1147 | |
1148 | return 0; | |
1149 | } | |
6f8ab4ac | 1150 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 1151 | |
6ed25978 AG |
1152 | /* deferred resume work, so resume can complete before we finished |
1153 | * setting our codec back up, which can be very slow on I2C | |
1154 | */ | |
1155 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1156 | { |
f0fba2ad LG |
1157 | struct snd_soc_card *card = |
1158 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 1159 | struct snd_soc_codec *codec; |
db2a4165 FM |
1160 | int i; |
1161 | ||
6ed25978 AG |
1162 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1163 | * so userspace apps are blocked from touching us | |
1164 | */ | |
1165 | ||
f0fba2ad | 1166 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1167 | |
9949788b | 1168 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1169 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1170 | |
87506549 | 1171 | if (card->resume_pre) |
70b2ac12 | 1172 | card->resume_pre(card); |
db2a4165 | 1173 | |
f0fba2ad LG |
1174 | /* resume AC97 DAIs */ |
1175 | for (i = 0; i < card->num_rtd; i++) { | |
1176 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1177 | |
f0fba2ad | 1178 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1179 | continue; |
1180 | ||
f0fba2ad LG |
1181 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1182 | cpu_dai->driver->resume(cpu_dai); | |
1183 | } | |
1184 | ||
2eea392d | 1185 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1186 | /* If the CODEC was idle over suspend then it will have been |
1187 | * left with bias OFF or STANDBY and suspended so we must now | |
1188 | * resume. Otherwise the suspend was suppressed. | |
1189 | */ | |
1190 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1191 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1192 | case SND_SOC_BIAS_STANDBY: |
1193 | case SND_SOC_BIAS_OFF: | |
1194 | codec->driver->resume(codec); | |
1195 | codec->suspended = 0; | |
1196 | break; | |
1197 | default: | |
1198 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1199 | break; | |
1200 | } | |
1547aba9 MB |
1201 | } |
1202 | } | |
db2a4165 | 1203 | |
f0fba2ad LG |
1204 | for (i = 0; i < card->num_rtd; i++) { |
1205 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1206 | |
f0fba2ad | 1207 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1208 | continue; |
1209 | ||
f0fba2ad LG |
1210 | if (driver->playback.stream_name != NULL) |
1211 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1212 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1213 | |
1214 | if (driver->capture.stream_name != NULL) | |
1215 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1216 | SND_SOC_DAPM_STREAM_RESUME); |
1217 | } | |
1218 | ||
3ff3f64b | 1219 | /* unmute any active DACs */ |
f0fba2ad LG |
1220 | for (i = 0; i < card->num_rtd; i++) { |
1221 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1222 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1223 | |
f0fba2ad | 1224 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1225 | continue; |
1226 | ||
f0fba2ad LG |
1227 | if (drv->ops->digital_mute && dai->playback_active) |
1228 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1229 | } |
1230 | ||
f0fba2ad LG |
1231 | for (i = 0; i < card->num_rtd; i++) { |
1232 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1233 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1234 | |
f0fba2ad | 1235 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1236 | continue; |
1237 | ||
f0fba2ad LG |
1238 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1239 | cpu_dai->driver->resume(cpu_dai); | |
1240 | if (platform->driver->resume && platform->suspended) { | |
1241 | platform->driver->resume(cpu_dai); | |
1242 | platform->suspended = 0; | |
1243 | } | |
db2a4165 FM |
1244 | } |
1245 | ||
87506549 | 1246 | if (card->resume_post) |
70b2ac12 | 1247 | card->resume_post(card); |
db2a4165 | 1248 | |
f0fba2ad | 1249 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1250 | |
1251 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1252 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1253 | } |
1254 | ||
1255 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 1256 | int snd_soc_resume(struct device *dev) |
6ed25978 | 1257 | { |
6f8ab4ac | 1258 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1259 | int i; |
b9dd94a8 | 1260 | |
64ab9baa MB |
1261 | /* AC97 devices might have other drivers hanging off them so |
1262 | * need to resume immediately. Other drivers don't have that | |
1263 | * problem and may take a substantial amount of time to resume | |
1264 | * due to I/O costs and anti-pop so handle them out of line. | |
1265 | */ | |
f0fba2ad LG |
1266 | for (i = 0; i < card->num_rtd; i++) { |
1267 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1268 | if (cpu_dai->driver->ac97_control) { | |
1269 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1270 | soc_resume_deferred(&card->deferred_resume_work); | |
1271 | } else { | |
1272 | dev_dbg(dev, "Scheduling resume work\n"); | |
1273 | if (!schedule_work(&card->deferred_resume_work)) | |
1274 | dev_err(dev, "resume work item may be lost\n"); | |
1275 | } | |
64ab9baa | 1276 | } |
6ed25978 | 1277 | |
db2a4165 FM |
1278 | return 0; |
1279 | } | |
6f8ab4ac | 1280 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 1281 | #else |
6f8ab4ac MB |
1282 | #define snd_soc_suspend NULL |
1283 | #define snd_soc_resume NULL | |
db2a4165 FM |
1284 | #endif |
1285 | ||
02a06d30 BS |
1286 | static struct snd_soc_dai_ops null_dai_ops = { |
1287 | }; | |
1288 | ||
f0fba2ad | 1289 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1290 | { |
f0fba2ad LG |
1291 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1292 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1293 | struct snd_soc_codec *codec; |
435c5e25 | 1294 | struct snd_soc_platform *platform; |
f0fba2ad | 1295 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 1296 | const char *platform_name; |
435c5e25 | 1297 | |
f0fba2ad LG |
1298 | if (rtd->complete) |
1299 | return 1; | |
1300 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1301 | |
f0fba2ad LG |
1302 | /* do we already have the CPU DAI for this link ? */ |
1303 | if (rtd->cpu_dai) { | |
1304 | goto find_codec; | |
1305 | } | |
1306 | /* no, then find CPU DAI from registered DAIs*/ | |
1307 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1308 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1309 | ||
1310 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1311 | return -ENODEV; | |
1312 | ||
1313 | rtd->cpu_dai = cpu_dai; | |
1314 | goto find_codec; | |
435c5e25 | 1315 | } |
435c5e25 | 1316 | } |
f0fba2ad LG |
1317 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1318 | dai_link->cpu_dai_name); | |
6308419a | 1319 | |
f0fba2ad LG |
1320 | find_codec: |
1321 | /* do we already have the CODEC for this link ? */ | |
1322 | if (rtd->codec) { | |
1323 | goto find_platform; | |
1324 | } | |
1325 | ||
1326 | /* no, then find CODEC from registered CODECs*/ | |
1327 | list_for_each_entry(codec, &codec_list, list) { | |
1328 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1329 | rtd->codec = codec; | |
1330 | ||
f0fba2ad LG |
1331 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1332 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1333 | if (codec->dev == codec_dai->dev && | |
1334 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1335 | rtd->codec_dai = codec_dai; | |
1336 | goto find_platform; | |
1337 | } | |
435c5e25 | 1338 | } |
f0fba2ad LG |
1339 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1340 | dai_link->codec_dai_name); | |
1341 | ||
1342 | goto find_platform; | |
435c5e25 | 1343 | } |
f0fba2ad LG |
1344 | } |
1345 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1346 | dai_link->codec_name); | |
6b05eda6 | 1347 | |
f0fba2ad | 1348 | find_platform: |
848dd8be MB |
1349 | /* do we need a platform? */ |
1350 | if (rtd->platform) | |
f0fba2ad | 1351 | goto out; |
848dd8be MB |
1352 | |
1353 | /* if there's no platform we match on the empty platform */ | |
1354 | platform_name = dai_link->platform_name; | |
1355 | if (!platform_name) | |
1356 | platform_name = "snd-soc-dummy"; | |
1357 | ||
1358 | /* no, then find one from the set of registered platforms */ | |
f0fba2ad | 1359 | list_for_each_entry(platform, &platform_list, list) { |
848dd8be | 1360 | if (!strcmp(platform->name, platform_name)) { |
f0fba2ad LG |
1361 | rtd->platform = platform; |
1362 | goto out; | |
1363 | } | |
02a06d30 BS |
1364 | } |
1365 | ||
f0fba2ad LG |
1366 | dev_dbg(card->dev, "platform %s not registered\n", |
1367 | dai_link->platform_name); | |
1368 | return 0; | |
1369 | ||
1370 | out: | |
1371 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1372 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1373 | rtd->complete = 1; | |
1374 | card->num_rtd++; | |
1375 | } | |
1376 | return 1; | |
1377 | } | |
1378 | ||
589c3563 JN |
1379 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1380 | { | |
1381 | int err; | |
1382 | ||
1383 | if (codec->driver->remove) { | |
1384 | err = codec->driver->remove(codec); | |
1385 | if (err < 0) | |
1386 | dev_err(codec->dev, | |
1387 | "asoc: failed to remove %s: %d\n", | |
1388 | codec->name, err); | |
1389 | } | |
1390 | ||
1391 | /* Make sure all DAPM widgets are freed */ | |
1392 | snd_soc_dapm_free(&codec->dapm); | |
1393 | ||
1394 | soc_cleanup_codec_debugfs(codec); | |
1395 | codec->probed = 0; | |
1396 | list_del(&codec->card_list); | |
1397 | module_put(codec->dev->driver->owner); | |
1398 | } | |
1399 | ||
f0fba2ad LG |
1400 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1401 | { | |
1402 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1403 | struct snd_soc_codec *codec = rtd->codec; | |
1404 | struct snd_soc_platform *platform = rtd->platform; | |
1405 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1406 | int err; | |
1407 | ||
1408 | /* unregister the rtd device */ | |
1409 | if (rtd->dev_registered) { | |
1410 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1411 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1412 | device_unregister(&rtd->dev); |
1413 | rtd->dev_registered = 0; | |
1414 | } | |
1415 | ||
1416 | /* remove the CODEC DAI */ | |
1417 | if (codec_dai && codec_dai->probed) { | |
1418 | if (codec_dai->driver->remove) { | |
1419 | err = codec_dai->driver->remove(codec_dai); | |
1420 | if (err < 0) | |
1421 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1422 | } |
f0fba2ad LG |
1423 | codec_dai->probed = 0; |
1424 | list_del(&codec_dai->card_list); | |
1425 | } | |
6b05eda6 | 1426 | |
f0fba2ad LG |
1427 | /* remove the platform */ |
1428 | if (platform && platform->probed) { | |
1429 | if (platform->driver->remove) { | |
1430 | err = platform->driver->remove(platform); | |
1431 | if (err < 0) | |
1432 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1433 | } | |
1434 | platform->probed = 0; | |
1435 | list_del(&platform->card_list); | |
1436 | module_put(platform->dev->driver->owner); | |
1437 | } | |
435c5e25 | 1438 | |
f0fba2ad | 1439 | /* remove the CODEC */ |
589c3563 JN |
1440 | if (codec && codec->probed) |
1441 | soc_remove_codec(codec); | |
db2a4165 | 1442 | |
f0fba2ad LG |
1443 | /* remove the cpu_dai */ |
1444 | if (cpu_dai && cpu_dai->probed) { | |
1445 | if (cpu_dai->driver->remove) { | |
1446 | err = cpu_dai->driver->remove(cpu_dai); | |
1447 | if (err < 0) | |
1448 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1449 | } |
f0fba2ad LG |
1450 | cpu_dai->probed = 0; |
1451 | list_del(&cpu_dai->card_list); | |
1452 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1453 | } |
f0fba2ad | 1454 | } |
db2a4165 | 1455 | |
0671fd8e KM |
1456 | static void soc_remove_dai_links(struct snd_soc_card *card) |
1457 | { | |
1458 | int i; | |
1459 | ||
1460 | for (i = 0; i < card->num_rtd; i++) | |
1461 | soc_remove_dai_link(card, i); | |
1462 | ||
1463 | card->num_rtd = 0; | |
1464 | } | |
1465 | ||
ead9b919 JN |
1466 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1467 | struct snd_soc_codec *codec) | |
1468 | { | |
1469 | int i; | |
1470 | ||
ff819b83 | 1471 | if (card->codec_conf == NULL) |
ead9b919 JN |
1472 | return; |
1473 | ||
ff819b83 DP |
1474 | for (i = 0; i < card->num_configs; i++) { |
1475 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1476 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1477 | codec->name_prefix = map->name_prefix; | |
1478 | break; | |
1479 | } | |
1480 | } | |
1481 | } | |
1482 | ||
589c3563 JN |
1483 | static int soc_probe_codec(struct snd_soc_card *card, |
1484 | struct snd_soc_codec *codec) | |
1485 | { | |
1486 | int ret = 0; | |
89b95ac0 | 1487 | const struct snd_soc_codec_driver *driver = codec->driver; |
589c3563 JN |
1488 | |
1489 | codec->card = card; | |
1490 | codec->dapm.card = card; | |
1491 | soc_set_name_prefix(card, codec); | |
1492 | ||
70d29331 JN |
1493 | if (!try_module_get(codec->dev->driver->owner)) |
1494 | return -ENODEV; | |
1495 | ||
d5d1e0be LPC |
1496 | soc_init_codec_debugfs(codec); |
1497 | ||
77530150 LPC |
1498 | if (driver->dapm_widgets) |
1499 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1500 | driver->num_dapm_widgets); | |
1501 | ||
89b95ac0 MB |
1502 | if (driver->probe) { |
1503 | ret = driver->probe(codec); | |
589c3563 JN |
1504 | if (ret < 0) { |
1505 | dev_err(codec->dev, | |
1506 | "asoc: failed to probe CODEC %s: %d\n", | |
1507 | codec->name, ret); | |
70d29331 | 1508 | goto err_probe; |
589c3563 JN |
1509 | } |
1510 | } | |
1511 | ||
b7af1daf MB |
1512 | if (driver->controls) |
1513 | snd_soc_add_controls(codec, driver->controls, | |
1514 | driver->num_controls); | |
89b95ac0 MB |
1515 | if (driver->dapm_routes) |
1516 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1517 | driver->num_dapm_routes); | |
1518 | ||
589c3563 JN |
1519 | /* mark codec as probed and add to card codec list */ |
1520 | codec->probed = 1; | |
1521 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1522 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1523 | |
70d29331 JN |
1524 | return 0; |
1525 | ||
1526 | err_probe: | |
d5d1e0be | 1527 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1528 | module_put(codec->dev->driver->owner); |
1529 | ||
589c3563 JN |
1530 | return ret; |
1531 | } | |
1532 | ||
f0fba2ad LG |
1533 | static void rtd_release(struct device *dev) {} |
1534 | ||
589c3563 JN |
1535 | static int soc_post_component_init(struct snd_soc_card *card, |
1536 | struct snd_soc_codec *codec, | |
1537 | int num, int dailess) | |
1538 | { | |
1539 | struct snd_soc_dai_link *dai_link = NULL; | |
1540 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1541 | struct snd_soc_pcm_runtime *rtd; | |
1542 | const char *temp, *name; | |
1543 | int ret = 0; | |
1544 | ||
1545 | if (!dailess) { | |
1546 | dai_link = &card->dai_link[num]; | |
1547 | rtd = &card->rtd[num]; | |
1548 | name = dai_link->name; | |
1549 | } else { | |
1550 | aux_dev = &card->aux_dev[num]; | |
1551 | rtd = &card->rtd_aux[num]; | |
1552 | name = aux_dev->name; | |
1553 | } | |
0962bb21 | 1554 | rtd->card = card; |
589c3563 JN |
1555 | |
1556 | /* machine controls, routes and widgets are not prefixed */ | |
1557 | temp = codec->name_prefix; | |
1558 | codec->name_prefix = NULL; | |
1559 | ||
1560 | /* do machine specific initialization */ | |
1561 | if (!dailess && dai_link->init) | |
1562 | ret = dai_link->init(rtd); | |
1563 | else if (dailess && aux_dev->init) | |
1564 | ret = aux_dev->init(&codec->dapm); | |
1565 | if (ret < 0) { | |
1566 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1567 | return ret; | |
1568 | } | |
1569 | codec->name_prefix = temp; | |
1570 | ||
1571 | /* Make sure all DAPM widgets are instantiated */ | |
1572 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1573 | |
1574 | /* register the rtd device */ | |
1575 | rtd->codec = codec; | |
589c3563 JN |
1576 | rtd->dev.parent = card->dev; |
1577 | rtd->dev.release = rtd_release; | |
1578 | rtd->dev.init_name = name; | |
1579 | ret = device_register(&rtd->dev); | |
1580 | if (ret < 0) { | |
1581 | dev_err(card->dev, | |
1582 | "asoc: failed to register runtime device: %d\n", ret); | |
1583 | return ret; | |
1584 | } | |
1585 | rtd->dev_registered = 1; | |
1586 | ||
1587 | /* add DAPM sysfs entries for this codec */ | |
1588 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1589 | if (ret < 0) | |
1590 | dev_err(codec->dev, | |
1591 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1592 | ret); | |
1593 | ||
1594 | /* add codec sysfs entries */ | |
1595 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1596 | if (ret < 0) | |
1597 | dev_err(codec->dev, | |
1598 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1599 | ||
1600 | return 0; | |
1601 | } | |
1602 | ||
f0fba2ad LG |
1603 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1604 | { | |
1605 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1606 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1607 | struct snd_soc_codec *codec = rtd->codec; | |
1608 | struct snd_soc_platform *platform = rtd->platform; | |
1609 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1610 | int ret; | |
1611 | ||
1612 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1613 | ||
1614 | /* config components */ | |
1615 | codec_dai->codec = codec; | |
f0fba2ad | 1616 | cpu_dai->platform = platform; |
f0fba2ad LG |
1617 | codec_dai->card = card; |
1618 | cpu_dai->card = card; | |
1619 | ||
1620 | /* set default power off timeout */ | |
1621 | rtd->pmdown_time = pmdown_time; | |
1622 | ||
1623 | /* probe the cpu_dai */ | |
1624 | if (!cpu_dai->probed) { | |
1625 | if (cpu_dai->driver->probe) { | |
1626 | ret = cpu_dai->driver->probe(cpu_dai); | |
1627 | if (ret < 0) { | |
1628 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1629 | cpu_dai->name); | |
1630 | return ret; | |
1631 | } | |
1632 | } | |
1633 | cpu_dai->probed = 1; | |
1634 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1635 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1636 | } |
1637 | ||
f0fba2ad LG |
1638 | /* probe the CODEC */ |
1639 | if (!codec->probed) { | |
589c3563 JN |
1640 | ret = soc_probe_codec(card, codec); |
1641 | if (ret < 0) | |
1642 | return ret; | |
db2a4165 FM |
1643 | } |
1644 | ||
f0fba2ad LG |
1645 | /* probe the platform */ |
1646 | if (!platform->probed) { | |
70d29331 JN |
1647 | if (!try_module_get(platform->dev->driver->owner)) |
1648 | return -ENODEV; | |
1649 | ||
f0fba2ad LG |
1650 | if (platform->driver->probe) { |
1651 | ret = platform->driver->probe(platform); | |
1652 | if (ret < 0) { | |
1653 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1654 | platform->name); | |
70d29331 | 1655 | module_put(platform->dev->driver->owner); |
f0fba2ad LG |
1656 | return ret; |
1657 | } | |
1658 | } | |
1659 | /* mark platform as probed and add to card platform list */ | |
1660 | platform->probed = 1; | |
1661 | list_add(&platform->card_list, &card->platform_dev_list); | |
1662 | } | |
6ed25978 | 1663 | |
f0fba2ad LG |
1664 | /* probe the CODEC DAI */ |
1665 | if (!codec_dai->probed) { | |
1666 | if (codec_dai->driver->probe) { | |
1667 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1668 | if (ret < 0) { |
f0fba2ad LG |
1669 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1670 | codec_dai->name); | |
1671 | return ret; | |
fe3e78e0 MB |
1672 | } |
1673 | } | |
f0fba2ad LG |
1674 | |
1675 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1676 | codec_dai->probed = 1; | |
1677 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1678 | } |
1679 | ||
f0fba2ad LG |
1680 | /* DAPM dai link stream work */ |
1681 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1682 | ||
589c3563 JN |
1683 | ret = soc_post_component_init(card, codec, num, 0); |
1684 | if (ret) | |
f0fba2ad | 1685 | return ret; |
fe3e78e0 | 1686 | |
f0fba2ad LG |
1687 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1688 | if (ret < 0) | |
1689 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1690 | ||
f0fba2ad LG |
1691 | /* create the pcm */ |
1692 | ret = soc_new_pcm(rtd, num); | |
1693 | if (ret < 0) { | |
1694 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1695 | return ret; | |
1696 | } | |
1697 | ||
1698 | /* add platform data for AC97 devices */ | |
1699 | if (rtd->codec_dai->driver->ac97_control) | |
1700 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1701 | ||
1702 | return 0; | |
1703 | } | |
1704 | ||
fe3e78e0 | 1705 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1706 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1707 | { | |
1708 | int ret; | |
1709 | ||
fe3e78e0 MB |
1710 | /* Only instantiate AC97 if not already done by the adaptor |
1711 | * for the generic AC97 subsystem. | |
1712 | */ | |
f0fba2ad | 1713 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1714 | /* |
1715 | * It is possible that the AC97 device is already registered to | |
1716 | * the device subsystem. This happens when the device is created | |
1717 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1718 | * is the generic AC97 glue but others migh emerge. | |
1719 | * | |
1720 | * In those cases we don't try to register the device again. | |
1721 | */ | |
1722 | if (!rtd->codec->ac97_created) | |
1723 | return 0; | |
f0fba2ad LG |
1724 | |
1725 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1726 | if (ret < 0) { |
1727 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1728 | return ret; |
fe3e78e0 | 1729 | } |
f0fba2ad LG |
1730 | |
1731 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1732 | } |
f0fba2ad LG |
1733 | return 0; |
1734 | } | |
1735 | ||
1736 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1737 | { | |
1738 | if (codec->ac97_registered) { | |
1739 | soc_ac97_dev_unregister(codec); | |
1740 | codec->ac97_registered = 0; | |
1741 | } | |
1742 | } | |
fe3e78e0 MB |
1743 | #endif |
1744 | ||
2eea392d JN |
1745 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1746 | { | |
1747 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1748 | struct snd_soc_codec *codec; |
676ad98a | 1749 | int ret = -ENODEV; |
2eea392d JN |
1750 | |
1751 | /* find CODEC from registered CODECs*/ | |
1752 | list_for_each_entry(codec, &codec_list, list) { | |
1753 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1754 | if (codec->probed) { | |
1755 | dev_err(codec->dev, | |
1756 | "asoc: codec already probed"); | |
1757 | ret = -EBUSY; | |
1758 | goto out; | |
1759 | } | |
676ad98a | 1760 | goto found; |
2eea392d JN |
1761 | } |
1762 | } | |
676ad98a JN |
1763 | /* codec not found */ |
1764 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1765 | goto out; | |
2eea392d | 1766 | |
676ad98a | 1767 | found: |
589c3563 | 1768 | ret = soc_probe_codec(card, codec); |
2eea392d | 1769 | if (ret < 0) |
589c3563 | 1770 | return ret; |
2eea392d | 1771 | |
589c3563 | 1772 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1773 | |
1774 | out: | |
1775 | return ret; | |
1776 | } | |
1777 | ||
1778 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1779 | { | |
1780 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1781 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1782 | |
1783 | /* unregister the rtd device */ | |
1784 | if (rtd->dev_registered) { | |
589c3563 | 1785 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1786 | device_unregister(&rtd->dev); |
1787 | rtd->dev_registered = 0; | |
1788 | } | |
1789 | ||
589c3563 JN |
1790 | if (codec && codec->probed) |
1791 | soc_remove_codec(codec); | |
2eea392d JN |
1792 | } |
1793 | ||
fdf0f54d DP |
1794 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1795 | enum snd_soc_compress_type compress_type) | |
1796 | { | |
1797 | int ret; | |
1798 | ||
1799 | if (codec->cache_init) | |
1800 | return 0; | |
1801 | ||
1802 | /* override the compress_type if necessary */ | |
1803 | if (compress_type && codec->compress_type != compress_type) | |
1804 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1805 | ret = snd_soc_cache_init(codec); |
1806 | if (ret < 0) { | |
1807 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1808 | ret); | |
1809 | return ret; | |
1810 | } | |
1811 | codec->cache_init = 1; | |
1812 | return 0; | |
1813 | } | |
1814 | ||
f0fba2ad LG |
1815 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1816 | { | |
fdf0f54d DP |
1817 | struct snd_soc_codec *codec; |
1818 | struct snd_soc_codec_conf *codec_conf; | |
1819 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1820 | int ret, i; |
fe3e78e0 | 1821 | |
f0fba2ad | 1822 | mutex_lock(&card->mutex); |
dbe21408 | 1823 | |
f0fba2ad LG |
1824 | if (card->instantiated) { |
1825 | mutex_unlock(&card->mutex); | |
1826 | return; | |
1827 | } | |
fe3e78e0 | 1828 | |
f0fba2ad LG |
1829 | /* bind DAIs */ |
1830 | for (i = 0; i < card->num_links; i++) | |
1831 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1832 | |
f0fba2ad LG |
1833 | /* bind completed ? */ |
1834 | if (card->num_rtd != card->num_links) { | |
1835 | mutex_unlock(&card->mutex); | |
1836 | return; | |
1837 | } | |
435c5e25 | 1838 | |
fdf0f54d DP |
1839 | /* initialize the register cache for each available codec */ |
1840 | list_for_each_entry(codec, &codec_list, list) { | |
1841 | if (codec->cache_init) | |
1842 | continue; | |
861f2faf DP |
1843 | /* by default we don't override the compress_type */ |
1844 | compress_type = 0; | |
fdf0f54d DP |
1845 | /* check to see if we need to override the compress_type */ |
1846 | for (i = 0; i < card->num_configs; ++i) { | |
1847 | codec_conf = &card->codec_conf[i]; | |
1848 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1849 | compress_type = codec_conf->compress_type; | |
1850 | if (compress_type && compress_type | |
1851 | != codec->compress_type) | |
1852 | break; | |
1853 | } | |
1854 | } | |
fdf0f54d DP |
1855 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1856 | if (ret < 0) { | |
1857 | mutex_unlock(&card->mutex); | |
1858 | return; | |
1859 | } | |
1860 | } | |
1861 | ||
f0fba2ad LG |
1862 | /* card bind complete so register a sound card */ |
1863 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1864 | card->owner, 0, &card->snd_card); | |
1865 | if (ret < 0) { | |
1866 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1867 | card->name); | |
1868 | mutex_unlock(&card->mutex); | |
1869 | return; | |
1870 | } | |
1871 | card->snd_card->dev = card->dev; | |
1872 | ||
e37a4970 MB |
1873 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1874 | card->dapm.dev = card->dev; | |
1875 | card->dapm.card = card; | |
1876 | list_add(&card->dapm.list, &card->dapm_list); | |
1877 | ||
d5d1e0be LPC |
1878 | #ifdef CONFIG_DEBUG_FS |
1879 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1880 | #endif | |
1881 | ||
88ee1c61 | 1882 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1883 | /* deferred resume work */ |
1884 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1885 | #endif | |
db2a4165 | 1886 | |
9a841ebb MB |
1887 | if (card->dapm_widgets) |
1888 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1889 | card->num_dapm_widgets); | |
1890 | ||
f0fba2ad LG |
1891 | /* initialise the sound card only once */ |
1892 | if (card->probe) { | |
e7361ec4 | 1893 | ret = card->probe(card); |
f0fba2ad LG |
1894 | if (ret < 0) |
1895 | goto card_probe_error; | |
1896 | } | |
fe3e78e0 | 1897 | |
f0fba2ad LG |
1898 | for (i = 0; i < card->num_links; i++) { |
1899 | ret = soc_probe_dai_link(card, i); | |
1900 | if (ret < 0) { | |
321de0d0 MB |
1901 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1902 | card->name, ret); | |
f0fba2ad LG |
1903 | goto probe_dai_err; |
1904 | } | |
1905 | } | |
db2a4165 | 1906 | |
2eea392d JN |
1907 | for (i = 0; i < card->num_aux_devs; i++) { |
1908 | ret = soc_probe_aux_dev(card, i); | |
1909 | if (ret < 0) { | |
1910 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1911 | card->name, ret); | |
1912 | goto probe_aux_dev_err; | |
1913 | } | |
1914 | } | |
1915 | ||
b7af1daf MB |
1916 | /* We should have a non-codec control add function but we don't */ |
1917 | if (card->controls) | |
1918 | snd_soc_add_controls(list_first_entry(&card->codec_dev_list, | |
1919 | struct snd_soc_codec, | |
1920 | card_list), | |
1921 | card->controls, | |
1922 | card->num_controls); | |
1923 | ||
b8ad29de MB |
1924 | if (card->dapm_routes) |
1925 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1926 | card->num_dapm_routes); | |
1927 | ||
f0fba2ad LG |
1928 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1929 | "%s", card->name); | |
1930 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1931 | "%s", card->name); | |
1932 | ||
28e9ad92 MB |
1933 | if (card->late_probe) { |
1934 | ret = card->late_probe(card); | |
1935 | if (ret < 0) { | |
1936 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1937 | card->name, ret); | |
1938 | goto probe_aux_dev_err; | |
1939 | } | |
1940 | } | |
1941 | ||
f0fba2ad LG |
1942 | ret = snd_card_register(card->snd_card); |
1943 | if (ret < 0) { | |
1944 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1945 | goto probe_aux_dev_err; |
db2a4165 FM |
1946 | } |
1947 | ||
f0fba2ad LG |
1948 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1949 | /* register any AC97 codecs */ | |
1950 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1951 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1952 | if (ret < 0) { | |
1953 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1954 | while (--i >= 0) | |
7d8316df | 1955 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1956 | goto probe_aux_dev_err; |
f0fba2ad | 1957 | } |
6b3ed785 | 1958 | } |
f0fba2ad LG |
1959 | #endif |
1960 | ||
1961 | card->instantiated = 1; | |
1962 | mutex_unlock(&card->mutex); | |
1963 | return; | |
1964 | ||
2eea392d JN |
1965 | probe_aux_dev_err: |
1966 | for (i = 0; i < card->num_aux_devs; i++) | |
1967 | soc_remove_aux_dev(card, i); | |
1968 | ||
f0fba2ad | 1969 | probe_dai_err: |
0671fd8e | 1970 | soc_remove_dai_links(card); |
f0fba2ad LG |
1971 | |
1972 | card_probe_error: | |
87506549 | 1973 | if (card->remove) |
e7361ec4 | 1974 | card->remove(card); |
f0fba2ad LG |
1975 | |
1976 | snd_card_free(card->snd_card); | |
1977 | ||
1978 | mutex_unlock(&card->mutex); | |
435c5e25 | 1979 | } |
db2a4165 | 1980 | |
435c5e25 | 1981 | /* |
421f91d2 | 1982 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1983 | * client_mutex. |
1984 | */ | |
1985 | static void snd_soc_instantiate_cards(void) | |
1986 | { | |
1987 | struct snd_soc_card *card; | |
1988 | list_for_each_entry(card, &card_list, list) | |
1989 | snd_soc_instantiate_card(card); | |
1990 | } | |
1991 | ||
1992 | /* probes a new socdev */ | |
1993 | static int soc_probe(struct platform_device *pdev) | |
1994 | { | |
f0fba2ad | 1995 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1996 | int ret = 0; |
435c5e25 | 1997 | |
70a7ca34 VK |
1998 | /* |
1999 | * no card, so machine driver should be registering card | |
2000 | * we should not be here in that case so ret error | |
2001 | */ | |
2002 | if (!card) | |
2003 | return -EINVAL; | |
2004 | ||
435c5e25 MB |
2005 | /* Bodge while we unpick instantiation */ |
2006 | card->dev = &pdev->dev; | |
f0fba2ad | 2007 | |
435c5e25 MB |
2008 | ret = snd_soc_register_card(card); |
2009 | if (ret != 0) { | |
2010 | dev_err(&pdev->dev, "Failed to register card\n"); | |
2011 | return ret; | |
2012 | } | |
2013 | ||
2014 | return 0; | |
db2a4165 FM |
2015 | } |
2016 | ||
b0e26485 | 2017 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
2018 | { |
2019 | int i; | |
db2a4165 | 2020 | |
b0e26485 VK |
2021 | /* make sure any delayed work runs */ |
2022 | for (i = 0; i < card->num_rtd; i++) { | |
2023 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
2024 | flush_delayed_work_sync(&rtd->delayed_work); | |
2025 | } | |
914dc182 | 2026 | |
b0e26485 VK |
2027 | /* remove auxiliary devices */ |
2028 | for (i = 0; i < card->num_aux_devs; i++) | |
2029 | soc_remove_aux_dev(card, i); | |
db2a4165 | 2030 | |
b0e26485 | 2031 | /* remove and free each DAI */ |
0671fd8e | 2032 | soc_remove_dai_links(card); |
2eea392d | 2033 | |
b0e26485 | 2034 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2035 | |
b0e26485 VK |
2036 | /* remove the card */ |
2037 | if (card->remove) | |
e7361ec4 | 2038 | card->remove(card); |
a6052154 | 2039 | |
0aaae527 LPC |
2040 | snd_soc_dapm_free(&card->dapm); |
2041 | ||
b0e26485 VK |
2042 | kfree(card->rtd); |
2043 | snd_card_free(card->snd_card); | |
2044 | return 0; | |
2045 | ||
2046 | } | |
2047 | ||
2048 | /* removes a socdev */ | |
2049 | static int soc_remove(struct platform_device *pdev) | |
2050 | { | |
2051 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2052 | |
c5af3a2e | 2053 | snd_soc_unregister_card(card); |
db2a4165 FM |
2054 | return 0; |
2055 | } | |
2056 | ||
6f8ab4ac | 2057 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2058 | { |
6f8ab4ac | 2059 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 2060 | int i; |
51737470 MB |
2061 | |
2062 | if (!card->instantiated) | |
416356fc | 2063 | return 0; |
51737470 MB |
2064 | |
2065 | /* Flush out pmdown_time work - we actually do want to run it | |
2066 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
2067 | for (i = 0; i < card->num_rtd; i++) { |
2068 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 2069 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 2070 | } |
51737470 | 2071 | |
f0fba2ad | 2072 | snd_soc_dapm_shutdown(card); |
416356fc MB |
2073 | |
2074 | return 0; | |
51737470 | 2075 | } |
6f8ab4ac | 2076 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2077 | |
6f8ab4ac MB |
2078 | const struct dev_pm_ops snd_soc_pm_ops = { |
2079 | .suspend = snd_soc_suspend, | |
2080 | .resume = snd_soc_resume, | |
2081 | .poweroff = snd_soc_poweroff, | |
416356fc | 2082 | }; |
deb2607e | 2083 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2084 | |
db2a4165 FM |
2085 | /* ASoC platform driver */ |
2086 | static struct platform_driver soc_driver = { | |
2087 | .driver = { | |
2088 | .name = "soc-audio", | |
8b45a209 | 2089 | .owner = THIS_MODULE, |
6f8ab4ac | 2090 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2091 | }, |
2092 | .probe = soc_probe, | |
2093 | .remove = soc_remove, | |
db2a4165 FM |
2094 | }; |
2095 | ||
2096 | /* create a new pcm */ | |
f0fba2ad LG |
2097 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
2098 | { | |
2099 | struct snd_soc_codec *codec = rtd->codec; | |
2100 | struct snd_soc_platform *platform = rtd->platform; | |
2101 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2102 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
2103 | struct snd_pcm *pcm; |
2104 | char new_name[64]; | |
2105 | int ret = 0, playback = 0, capture = 0; | |
2106 | ||
db2a4165 | 2107 | /* check client and interface hw capabilities */ |
40ca1142 | 2108 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 2109 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 2110 | |
f0fba2ad | 2111 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 2112 | playback = 1; |
f0fba2ad | 2113 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
2114 | capture = 1; |
2115 | ||
f0fba2ad LG |
2116 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
2117 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
2118 | num, playback, capture, &pcm); | |
db2a4165 | 2119 | if (ret < 0) { |
f0fba2ad | 2120 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
2121 | return ret; |
2122 | } | |
2123 | ||
f0fba2ad | 2124 | rtd->pcm = pcm; |
db2a4165 | 2125 | pcm->private_data = rtd; |
8842c72a MB |
2126 | if (platform->driver->ops) { |
2127 | soc_pcm_ops.mmap = platform->driver->ops->mmap; | |
2128 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2129 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2130 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2131 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2132 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2133 | soc_pcm_ops.page = platform->driver->ops->page; | |
2134 | } | |
db2a4165 FM |
2135 | |
2136 | if (playback) | |
2137 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2138 | ||
2139 | if (capture) | |
2140 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2141 | ||
8842c72a MB |
2142 | if (platform->driver->pcm_new) { |
2143 | ret = platform->driver->pcm_new(rtd->card->snd_card, | |
2144 | codec_dai, pcm); | |
2145 | if (ret < 0) { | |
2146 | pr_err("asoc: platform pcm constructor failed\n"); | |
2147 | return ret; | |
2148 | } | |
db2a4165 FM |
2149 | } |
2150 | ||
f0fba2ad | 2151 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2152 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2153 | cpu_dai->name); | |
2154 | return ret; | |
2155 | } | |
2156 | ||
096e49d5 MB |
2157 | /** |
2158 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2159 | * | |
2160 | * @codec: CODEC to query. | |
2161 | * @reg: Register to query. | |
2162 | * | |
2163 | * Boolean function indiciating if a CODEC register is volatile. | |
2164 | */ | |
181e055e MB |
2165 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2166 | unsigned int reg) | |
096e49d5 | 2167 | { |
1500b7b5 DP |
2168 | if (codec->volatile_register) |
2169 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2170 | else |
2171 | return 0; | |
2172 | } | |
2173 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2174 | ||
239c9706 DP |
2175 | /** |
2176 | * snd_soc_codec_readable_register: Report if a register is readable. | |
2177 | * | |
2178 | * @codec: CODEC to query. | |
2179 | * @reg: Register to query. | |
2180 | * | |
2181 | * Boolean function indicating if a CODEC register is readable. | |
2182 | */ | |
2183 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
2184 | unsigned int reg) | |
2185 | { | |
2186 | if (codec->readable_register) | |
2187 | return codec->readable_register(codec, reg); | |
2188 | else | |
2189 | return 0; | |
2190 | } | |
2191 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
2192 | ||
2193 | /** | |
2194 | * snd_soc_codec_writable_register: Report if a register is writable. | |
2195 | * | |
2196 | * @codec: CODEC to query. | |
2197 | * @reg: Register to query. | |
2198 | * | |
2199 | * Boolean function indicating if a CODEC register is writable. | |
2200 | */ | |
2201 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
2202 | unsigned int reg) | |
2203 | { | |
2204 | if (codec->writable_register) | |
2205 | return codec->writable_register(codec, reg); | |
2206 | else | |
2207 | return 0; | |
2208 | } | |
2209 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
2210 | ||
db2a4165 FM |
2211 | /** |
2212 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2213 | * @codec: audio codec | |
2214 | * @ops: AC97 bus operations | |
2215 | * @num: AC97 codec number | |
2216 | * | |
2217 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2218 | */ | |
2219 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2220 | struct snd_ac97_bus_ops *ops, int num) | |
2221 | { | |
2222 | mutex_lock(&codec->mutex); | |
2223 | ||
2224 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2225 | if (codec->ac97 == NULL) { | |
2226 | mutex_unlock(&codec->mutex); | |
2227 | return -ENOMEM; | |
2228 | } | |
2229 | ||
2230 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2231 | if (codec->ac97->bus == NULL) { | |
2232 | kfree(codec->ac97); | |
2233 | codec->ac97 = NULL; | |
2234 | mutex_unlock(&codec->mutex); | |
2235 | return -ENOMEM; | |
2236 | } | |
2237 | ||
2238 | codec->ac97->bus->ops = ops; | |
2239 | codec->ac97->num = num; | |
0562f788 MW |
2240 | |
2241 | /* | |
2242 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2243 | * device will be registered with the device subsystem later on. | |
2244 | */ | |
2245 | codec->ac97_created = 1; | |
2246 | ||
db2a4165 FM |
2247 | mutex_unlock(&codec->mutex); |
2248 | return 0; | |
2249 | } | |
2250 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2251 | ||
2252 | /** | |
2253 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2254 | * @codec: audio codec | |
2255 | * | |
2256 | * Frees AC97 codec device resources. | |
2257 | */ | |
2258 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2259 | { | |
2260 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2261 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2262 | soc_unregister_ac97_dai_link(codec); | |
2263 | #endif | |
db2a4165 FM |
2264 | kfree(codec->ac97->bus); |
2265 | kfree(codec->ac97); | |
2266 | codec->ac97 = NULL; | |
0562f788 | 2267 | codec->ac97_created = 0; |
db2a4165 FM |
2268 | mutex_unlock(&codec->mutex); |
2269 | } | |
2270 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2271 | ||
c3753707 MB |
2272 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2273 | { | |
2274 | unsigned int ret; | |
2275 | ||
c3acec26 | 2276 | ret = codec->read(codec, reg); |
c3753707 | 2277 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2278 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2279 | |
2280 | return ret; | |
2281 | } | |
2282 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2283 | ||
2284 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2285 | unsigned int reg, unsigned int val) | |
2286 | { | |
2287 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2288 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2289 | return codec->write(codec, reg, val); |
c3753707 MB |
2290 | } |
2291 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2292 | ||
5fb609d4 DP |
2293 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
2294 | unsigned int reg, const void *data, size_t len) | |
2295 | { | |
2296 | return codec->bulk_write_raw(codec, reg, data, len); | |
2297 | } | |
2298 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
2299 | ||
db2a4165 FM |
2300 | /** |
2301 | * snd_soc_update_bits - update codec register bits | |
2302 | * @codec: audio codec | |
2303 | * @reg: codec register | |
2304 | * @mask: register mask | |
2305 | * @value: new value | |
2306 | * | |
2307 | * Writes new register value. | |
2308 | * | |
180c329d | 2309 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2310 | */ |
2311 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2312 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2313 | { |
2314 | int change; | |
46f5822f | 2315 | unsigned int old, new; |
180c329d TT |
2316 | int ret; |
2317 | ||
2318 | ret = snd_soc_read(codec, reg); | |
2319 | if (ret < 0) | |
2320 | return ret; | |
db2a4165 | 2321 | |
180c329d | 2322 | old = ret; |
db2a4165 FM |
2323 | new = (old & ~mask) | value; |
2324 | change = old != new; | |
180c329d TT |
2325 | if (change) { |
2326 | ret = snd_soc_write(codec, reg, new); | |
2327 | if (ret < 0) | |
2328 | return ret; | |
2329 | } | |
db2a4165 | 2330 | |
db2a4165 FM |
2331 | return change; |
2332 | } | |
2333 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2334 | ||
6c508c62 EN |
2335 | /** |
2336 | * snd_soc_update_bits_locked - update codec register bits | |
2337 | * @codec: audio codec | |
2338 | * @reg: codec register | |
2339 | * @mask: register mask | |
2340 | * @value: new value | |
2341 | * | |
2342 | * Writes new register value, and takes the codec mutex. | |
2343 | * | |
2344 | * Returns 1 for change else 0. | |
2345 | */ | |
dd1b3d53 MB |
2346 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2347 | unsigned short reg, unsigned int mask, | |
2348 | unsigned int value) | |
6c508c62 EN |
2349 | { |
2350 | int change; | |
2351 | ||
2352 | mutex_lock(&codec->mutex); | |
2353 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2354 | mutex_unlock(&codec->mutex); | |
2355 | ||
2356 | return change; | |
2357 | } | |
dd1b3d53 | 2358 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2359 | |
db2a4165 FM |
2360 | /** |
2361 | * snd_soc_test_bits - test register for change | |
2362 | * @codec: audio codec | |
2363 | * @reg: codec register | |
2364 | * @mask: register mask | |
2365 | * @value: new value | |
2366 | * | |
2367 | * Tests a register with a new value and checks if the new value is | |
2368 | * different from the old value. | |
2369 | * | |
2370 | * Returns 1 for change else 0. | |
2371 | */ | |
2372 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2373 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2374 | { |
2375 | int change; | |
46f5822f | 2376 | unsigned int old, new; |
db2a4165 | 2377 | |
db2a4165 FM |
2378 | old = snd_soc_read(codec, reg); |
2379 | new = (old & ~mask) | value; | |
2380 | change = old != new; | |
db2a4165 FM |
2381 | |
2382 | return change; | |
2383 | } | |
2384 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2385 | ||
db2a4165 FM |
2386 | /** |
2387 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2388 | * @substream: the pcm substream | |
2389 | * @hw: the hardware parameters | |
2390 | * | |
2391 | * Sets the substream runtime hardware parameters. | |
2392 | */ | |
2393 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2394 | const struct snd_pcm_hardware *hw) | |
2395 | { | |
2396 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2397 | runtime->hw.info = hw->info; | |
2398 | runtime->hw.formats = hw->formats; | |
2399 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2400 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2401 | runtime->hw.periods_min = hw->periods_min; | |
2402 | runtime->hw.periods_max = hw->periods_max; | |
2403 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2404 | runtime->hw.fifo_size = hw->fifo_size; | |
2405 | return 0; | |
2406 | } | |
2407 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2408 | ||
2409 | /** | |
2410 | * snd_soc_cnew - create new control | |
2411 | * @_template: control template | |
2412 | * @data: control private data | |
ac11a2b3 | 2413 | * @long_name: control long name |
efb7ac3f | 2414 | * @prefix: control name prefix |
db2a4165 FM |
2415 | * |
2416 | * Create a new mixer control from a template control. | |
2417 | * | |
2418 | * Returns 0 for success, else error. | |
2419 | */ | |
2420 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
2421 | void *data, char *long_name, |
2422 | const char *prefix) | |
db2a4165 FM |
2423 | { |
2424 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2425 | struct snd_kcontrol *kcontrol; |
2426 | char *name = NULL; | |
2427 | int name_len; | |
db2a4165 FM |
2428 | |
2429 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2430 | template.index = 0; |
2431 | ||
efb7ac3f MB |
2432 | if (!long_name) |
2433 | long_name = template.name; | |
2434 | ||
2435 | if (prefix) { | |
2436 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
2437 | name = kmalloc(name_len, GFP_ATOMIC); | |
2438 | if (!name) | |
2439 | return NULL; | |
2440 | ||
2441 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2442 | ||
2443 | template.name = name; | |
2444 | } else { | |
2445 | template.name = long_name; | |
2446 | } | |
2447 | ||
2448 | kcontrol = snd_ctl_new1(&template, data); | |
2449 | ||
2450 | kfree(name); | |
2451 | ||
2452 | return kcontrol; | |
db2a4165 FM |
2453 | } |
2454 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2455 | ||
3e8e1952 IM |
2456 | /** |
2457 | * snd_soc_add_controls - add an array of controls to a codec. | |
2458 | * Convienience function to add a list of controls. Many codecs were | |
2459 | * duplicating this code. | |
2460 | * | |
2461 | * @codec: codec to add controls to | |
2462 | * @controls: array of controls to add | |
2463 | * @num_controls: number of elements in the array | |
2464 | * | |
2465 | * Return 0 for success, else error. | |
2466 | */ | |
2467 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2468 | const struct snd_kcontrol_new *controls, int num_controls) | |
2469 | { | |
f0fba2ad | 2470 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2471 | int err, i; |
2472 | ||
2473 | for (i = 0; i < num_controls; i++) { | |
2474 | const struct snd_kcontrol_new *control = &controls[i]; | |
efb7ac3f MB |
2475 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, |
2476 | control->name, | |
2477 | codec->name_prefix)); | |
3e8e1952 | 2478 | if (err < 0) { |
082100dc | 2479 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
efb7ac3f | 2480 | codec->name, control->name, err); |
3e8e1952 IM |
2481 | return err; |
2482 | } | |
2483 | } | |
2484 | ||
2485 | return 0; | |
2486 | } | |
2487 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2488 | ||
db2a4165 FM |
2489 | /** |
2490 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2491 | * @kcontrol: mixer control | |
2492 | * @uinfo: control element information | |
2493 | * | |
2494 | * Callback to provide information about a double enumerated | |
2495 | * mixer control. | |
2496 | * | |
2497 | * Returns 0 for success. | |
2498 | */ | |
2499 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2500 | struct snd_ctl_elem_info *uinfo) | |
2501 | { | |
2502 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2503 | ||
2504 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2505 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2506 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2507 | |
f8ba0b7b JS |
2508 | if (uinfo->value.enumerated.item > e->max - 1) |
2509 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2510 | strcpy(uinfo->value.enumerated.name, |
2511 | e->texts[uinfo->value.enumerated.item]); | |
2512 | return 0; | |
2513 | } | |
2514 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2515 | ||
2516 | /** | |
2517 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2518 | * @kcontrol: mixer control | |
ac11a2b3 | 2519 | * @ucontrol: control element information |
db2a4165 FM |
2520 | * |
2521 | * Callback to get the value of a double enumerated mixer. | |
2522 | * | |
2523 | * Returns 0 for success. | |
2524 | */ | |
2525 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2526 | struct snd_ctl_elem_value *ucontrol) | |
2527 | { | |
2528 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2529 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2530 | unsigned int val, bitmask; |
db2a4165 | 2531 | |
f8ba0b7b | 2532 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2533 | ; |
2534 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2535 | ucontrol->value.enumerated.item[0] |
2536 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2537 | if (e->shift_l != e->shift_r) |
2538 | ucontrol->value.enumerated.item[1] = | |
2539 | (val >> e->shift_r) & (bitmask - 1); | |
2540 | ||
2541 | return 0; | |
2542 | } | |
2543 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2544 | ||
2545 | /** | |
2546 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2547 | * @kcontrol: mixer control | |
ac11a2b3 | 2548 | * @ucontrol: control element information |
db2a4165 FM |
2549 | * |
2550 | * Callback to set the value of a double enumerated mixer. | |
2551 | * | |
2552 | * Returns 0 for success. | |
2553 | */ | |
2554 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2555 | struct snd_ctl_elem_value *ucontrol) | |
2556 | { | |
2557 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2558 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2559 | unsigned int val; |
2560 | unsigned int mask, bitmask; | |
db2a4165 | 2561 | |
f8ba0b7b | 2562 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2563 | ; |
f8ba0b7b | 2564 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2565 | return -EINVAL; |
2566 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2567 | mask = (bitmask - 1) << e->shift_l; | |
2568 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2569 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2570 | return -EINVAL; |
2571 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2572 | mask |= (bitmask - 1) << e->shift_r; | |
2573 | } | |
2574 | ||
6c508c62 | 2575 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2576 | } |
2577 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2578 | ||
2e72f8e3 PU |
2579 | /** |
2580 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2581 | * @kcontrol: mixer control | |
2582 | * @ucontrol: control element information | |
2583 | * | |
2584 | * Callback to get the value of a double semi enumerated mixer. | |
2585 | * | |
2586 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2587 | * used for handling bitfield coded enumeration for example. | |
2588 | * | |
2589 | * Returns 0 for success. | |
2590 | */ | |
2591 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2592 | struct snd_ctl_elem_value *ucontrol) | |
2593 | { | |
2594 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2595 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2596 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2597 | |
2598 | reg_val = snd_soc_read(codec, e->reg); | |
2599 | val = (reg_val >> e->shift_l) & e->mask; | |
2600 | for (mux = 0; mux < e->max; mux++) { | |
2601 | if (val == e->values[mux]) | |
2602 | break; | |
2603 | } | |
2604 | ucontrol->value.enumerated.item[0] = mux; | |
2605 | if (e->shift_l != e->shift_r) { | |
2606 | val = (reg_val >> e->shift_r) & e->mask; | |
2607 | for (mux = 0; mux < e->max; mux++) { | |
2608 | if (val == e->values[mux]) | |
2609 | break; | |
2610 | } | |
2611 | ucontrol->value.enumerated.item[1] = mux; | |
2612 | } | |
2613 | ||
2614 | return 0; | |
2615 | } | |
2616 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2617 | ||
2618 | /** | |
2619 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2620 | * @kcontrol: mixer control | |
2621 | * @ucontrol: control element information | |
2622 | * | |
2623 | * Callback to set the value of a double semi enumerated mixer. | |
2624 | * | |
2625 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2626 | * used for handling bitfield coded enumeration for example. | |
2627 | * | |
2628 | * Returns 0 for success. | |
2629 | */ | |
2630 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2631 | struct snd_ctl_elem_value *ucontrol) | |
2632 | { | |
2633 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2634 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2635 | unsigned int val; |
2636 | unsigned int mask; | |
2e72f8e3 PU |
2637 | |
2638 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2639 | return -EINVAL; | |
2640 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2641 | mask = e->mask << e->shift_l; | |
2642 | if (e->shift_l != e->shift_r) { | |
2643 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2644 | return -EINVAL; | |
2645 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2646 | mask |= e->mask << e->shift_r; | |
2647 | } | |
2648 | ||
6c508c62 | 2649 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2650 | } |
2651 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2652 | ||
db2a4165 FM |
2653 | /** |
2654 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2655 | * @kcontrol: mixer control | |
2656 | * @uinfo: control element information | |
2657 | * | |
2658 | * Callback to provide information about an external enumerated | |
2659 | * single mixer. | |
2660 | * | |
2661 | * Returns 0 for success. | |
2662 | */ | |
2663 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2664 | struct snd_ctl_elem_info *uinfo) | |
2665 | { | |
2666 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2667 | ||
2668 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2669 | uinfo->count = 1; | |
f8ba0b7b | 2670 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2671 | |
f8ba0b7b JS |
2672 | if (uinfo->value.enumerated.item > e->max - 1) |
2673 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2674 | strcpy(uinfo->value.enumerated.name, |
2675 | e->texts[uinfo->value.enumerated.item]); | |
2676 | return 0; | |
2677 | } | |
2678 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2679 | ||
2680 | /** | |
2681 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2682 | * @kcontrol: mixer control | |
2683 | * @uinfo: control element information | |
2684 | * | |
2685 | * Callback to provide information about a single external mixer control. | |
2686 | * | |
2687 | * Returns 0 for success. | |
2688 | */ | |
2689 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2690 | struct snd_ctl_elem_info *uinfo) | |
2691 | { | |
a7a4ac86 PZ |
2692 | int max = kcontrol->private_value; |
2693 | ||
fd5dfad9 | 2694 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2695 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2696 | else | |
2697 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2698 | |
db2a4165 FM |
2699 | uinfo->count = 1; |
2700 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2701 | uinfo->value.integer.max = max; |
db2a4165 FM |
2702 | return 0; |
2703 | } | |
2704 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2705 | ||
db2a4165 FM |
2706 | /** |
2707 | * snd_soc_info_volsw - single mixer info callback | |
2708 | * @kcontrol: mixer control | |
2709 | * @uinfo: control element information | |
2710 | * | |
2711 | * Callback to provide information about a single mixer control. | |
2712 | * | |
2713 | * Returns 0 for success. | |
2714 | */ | |
2715 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2716 | struct snd_ctl_elem_info *uinfo) | |
2717 | { | |
4eaa9819 JS |
2718 | struct soc_mixer_control *mc = |
2719 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2720 | int platform_max; |
762b8df7 | 2721 | unsigned int shift = mc->shift; |
815ecf8d | 2722 | unsigned int rshift = mc->rshift; |
db2a4165 | 2723 | |
d11bb4a9 PU |
2724 | if (!mc->platform_max) |
2725 | mc->platform_max = mc->max; | |
2726 | platform_max = mc->platform_max; | |
2727 | ||
2728 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2729 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2730 | else | |
2731 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2732 | ||
db2a4165 FM |
2733 | uinfo->count = shift == rshift ? 1 : 2; |
2734 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2735 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2736 | return 0; |
2737 | } | |
2738 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2739 | ||
2740 | /** | |
2741 | * snd_soc_get_volsw - single mixer get callback | |
2742 | * @kcontrol: mixer control | |
ac11a2b3 | 2743 | * @ucontrol: control element information |
db2a4165 FM |
2744 | * |
2745 | * Callback to get the value of a single mixer control. | |
2746 | * | |
2747 | * Returns 0 for success. | |
2748 | */ | |
2749 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2750 | struct snd_ctl_elem_value *ucontrol) | |
2751 | { | |
4eaa9819 JS |
2752 | struct soc_mixer_control *mc = |
2753 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2754 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2755 | unsigned int reg = mc->reg; |
2756 | unsigned int shift = mc->shift; | |
2757 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2758 | int max = mc->max; |
815ecf8d JS |
2759 | unsigned int mask = (1 << fls(max)) - 1; |
2760 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2761 | |
2762 | ucontrol->value.integer.value[0] = | |
2763 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2764 | if (shift != rshift) | |
2765 | ucontrol->value.integer.value[1] = | |
2766 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2767 | if (invert) { | |
2768 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2769 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2770 | if (shift != rshift) |
2771 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2772 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2773 | } |
2774 | ||
2775 | return 0; | |
2776 | } | |
2777 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2778 | ||
2779 | /** | |
2780 | * snd_soc_put_volsw - single mixer put callback | |
2781 | * @kcontrol: mixer control | |
ac11a2b3 | 2782 | * @ucontrol: control element information |
db2a4165 FM |
2783 | * |
2784 | * Callback to set the value of a single mixer control. | |
2785 | * | |
2786 | * Returns 0 for success. | |
2787 | */ | |
2788 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2789 | struct snd_ctl_elem_value *ucontrol) | |
2790 | { | |
4eaa9819 JS |
2791 | struct soc_mixer_control *mc = |
2792 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2793 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2794 | unsigned int reg = mc->reg; |
2795 | unsigned int shift = mc->shift; | |
2796 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2797 | int max = mc->max; |
815ecf8d JS |
2798 | unsigned int mask = (1 << fls(max)) - 1; |
2799 | unsigned int invert = mc->invert; | |
46f5822f | 2800 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2801 | |
2802 | val = (ucontrol->value.integer.value[0] & mask); | |
2803 | if (invert) | |
a7a4ac86 | 2804 | val = max - val; |
db2a4165 FM |
2805 | val_mask = mask << shift; |
2806 | val = val << shift; | |
2807 | if (shift != rshift) { | |
2808 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2809 | if (invert) | |
a7a4ac86 | 2810 | val2 = max - val2; |
db2a4165 FM |
2811 | val_mask |= mask << rshift; |
2812 | val |= val2 << rshift; | |
2813 | } | |
6c508c62 | 2814 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2815 | } |
2816 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2817 | ||
2818 | /** | |
2819 | * snd_soc_info_volsw_2r - double mixer info callback | |
2820 | * @kcontrol: mixer control | |
2821 | * @uinfo: control element information | |
2822 | * | |
2823 | * Callback to provide information about a double mixer control that | |
2824 | * spans 2 codec registers. | |
2825 | * | |
2826 | * Returns 0 for success. | |
2827 | */ | |
2828 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2829 | struct snd_ctl_elem_info *uinfo) | |
2830 | { | |
4eaa9819 JS |
2831 | struct soc_mixer_control *mc = |
2832 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2833 | int platform_max; |
a7a4ac86 | 2834 | |
d11bb4a9 PU |
2835 | if (!mc->platform_max) |
2836 | mc->platform_max = mc->max; | |
2837 | platform_max = mc->platform_max; | |
2838 | ||
2839 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2840 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2841 | else | |
2842 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2843 | |
db2a4165 FM |
2844 | uinfo->count = 2; |
2845 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2846 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2847 | return 0; |
2848 | } | |
2849 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2850 | ||
2851 | /** | |
2852 | * snd_soc_get_volsw_2r - double mixer get callback | |
2853 | * @kcontrol: mixer control | |
ac11a2b3 | 2854 | * @ucontrol: control element information |
db2a4165 FM |
2855 | * |
2856 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2857 | * | |
2858 | * Returns 0 for success. | |
2859 | */ | |
2860 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2861 | struct snd_ctl_elem_value *ucontrol) | |
2862 | { | |
4eaa9819 JS |
2863 | struct soc_mixer_control *mc = |
2864 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2865 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2866 | unsigned int reg = mc->reg; |
2867 | unsigned int reg2 = mc->rreg; | |
2868 | unsigned int shift = mc->shift; | |
4eaa9819 | 2869 | int max = mc->max; |
46f5822f | 2870 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2871 | unsigned int invert = mc->invert; |
db2a4165 FM |
2872 | |
2873 | ucontrol->value.integer.value[0] = | |
2874 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2875 | ucontrol->value.integer.value[1] = | |
2876 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2877 | if (invert) { | |
2878 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2879 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2880 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2881 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2882 | } |
2883 | ||
2884 | return 0; | |
2885 | } | |
2886 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2887 | ||
2888 | /** | |
2889 | * snd_soc_put_volsw_2r - double mixer set callback | |
2890 | * @kcontrol: mixer control | |
ac11a2b3 | 2891 | * @ucontrol: control element information |
db2a4165 FM |
2892 | * |
2893 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2894 | * | |
2895 | * Returns 0 for success. | |
2896 | */ | |
2897 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2898 | struct snd_ctl_elem_value *ucontrol) | |
2899 | { | |
4eaa9819 JS |
2900 | struct soc_mixer_control *mc = |
2901 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2902 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2903 | unsigned int reg = mc->reg; |
2904 | unsigned int reg2 = mc->rreg; | |
2905 | unsigned int shift = mc->shift; | |
4eaa9819 | 2906 | int max = mc->max; |
815ecf8d JS |
2907 | unsigned int mask = (1 << fls(max)) - 1; |
2908 | unsigned int invert = mc->invert; | |
db2a4165 | 2909 | int err; |
46f5822f | 2910 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2911 | |
2912 | val_mask = mask << shift; | |
2913 | val = (ucontrol->value.integer.value[0] & mask); | |
2914 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2915 | ||
2916 | if (invert) { | |
a7a4ac86 PZ |
2917 | val = max - val; |
2918 | val2 = max - val2; | |
db2a4165 FM |
2919 | } |
2920 | ||
2921 | val = val << shift; | |
2922 | val2 = val2 << shift; | |
2923 | ||
6c508c62 | 2924 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2925 | if (err < 0) |
db2a4165 FM |
2926 | return err; |
2927 | ||
6c508c62 | 2928 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2929 | return err; |
2930 | } | |
2931 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2932 | ||
e13ac2e9 MB |
2933 | /** |
2934 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2935 | * @kcontrol: mixer control | |
2936 | * @uinfo: control element information | |
2937 | * | |
2938 | * Callback to provide information about a signed mixer control. | |
2939 | * | |
2940 | * Returns 0 for success. | |
2941 | */ | |
2942 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2943 | struct snd_ctl_elem_info *uinfo) | |
2944 | { | |
4eaa9819 JS |
2945 | struct soc_mixer_control *mc = |
2946 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2947 | int platform_max; |
4eaa9819 | 2948 | int min = mc->min; |
e13ac2e9 | 2949 | |
d11bb4a9 PU |
2950 | if (!mc->platform_max) |
2951 | mc->platform_max = mc->max; | |
2952 | platform_max = mc->platform_max; | |
2953 | ||
e13ac2e9 MB |
2954 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2955 | uinfo->count = 2; | |
2956 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2957 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2958 | return 0; |
2959 | } | |
2960 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2961 | ||
2962 | /** | |
2963 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2964 | * @kcontrol: mixer control | |
ac11a2b3 | 2965 | * @ucontrol: control element information |
e13ac2e9 MB |
2966 | * |
2967 | * Callback to get the value of a signed mixer control. | |
2968 | * | |
2969 | * Returns 0 for success. | |
2970 | */ | |
2971 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2972 | struct snd_ctl_elem_value *ucontrol) | |
2973 | { | |
4eaa9819 JS |
2974 | struct soc_mixer_control *mc = |
2975 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2976 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2977 | unsigned int reg = mc->reg; |
4eaa9819 | 2978 | int min = mc->min; |
e13ac2e9 MB |
2979 | int val = snd_soc_read(codec, reg); |
2980 | ||
2981 | ucontrol->value.integer.value[0] = | |
2982 | ((signed char)(val & 0xff))-min; | |
2983 | ucontrol->value.integer.value[1] = | |
2984 | ((signed char)((val >> 8) & 0xff))-min; | |
2985 | return 0; | |
2986 | } | |
2987 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2988 | ||
2989 | /** | |
2990 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2991 | * @kcontrol: mixer control | |
ac11a2b3 | 2992 | * @ucontrol: control element information |
e13ac2e9 MB |
2993 | * |
2994 | * Callback to set the value of a signed mixer control. | |
2995 | * | |
2996 | * Returns 0 for success. | |
2997 | */ | |
2998 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2999 | struct snd_ctl_elem_value *ucontrol) | |
3000 | { | |
4eaa9819 JS |
3001 | struct soc_mixer_control *mc = |
3002 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 3003 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 3004 | unsigned int reg = mc->reg; |
4eaa9819 | 3005 | int min = mc->min; |
46f5822f | 3006 | unsigned int val; |
e13ac2e9 MB |
3007 | |
3008 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
3009 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
3010 | ||
6c508c62 | 3011 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
3012 | } |
3013 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
3014 | ||
637d3847 PU |
3015 | /** |
3016 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
3017 | * | |
3018 | * @codec: where to look for the control | |
3019 | * @name: Name of the control | |
3020 | * @max: new maximum limit | |
3021 | * | |
3022 | * Return 0 for success, else error. | |
3023 | */ | |
3024 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
3025 | const char *name, int max) | |
3026 | { | |
f0fba2ad | 3027 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
3028 | struct snd_kcontrol *kctl; |
3029 | struct soc_mixer_control *mc; | |
3030 | int found = 0; | |
3031 | int ret = -EINVAL; | |
3032 | ||
3033 | /* Sanity check for name and max */ | |
3034 | if (unlikely(!name || max <= 0)) | |
3035 | return -EINVAL; | |
3036 | ||
3037 | list_for_each_entry(kctl, &card->controls, list) { | |
3038 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
3039 | found = 1; | |
3040 | break; | |
3041 | } | |
3042 | } | |
3043 | if (found) { | |
3044 | mc = (struct soc_mixer_control *)kctl->private_value; | |
3045 | if (max <= mc->max) { | |
d11bb4a9 | 3046 | mc->platform_max = max; |
637d3847 PU |
3047 | ret = 0; |
3048 | } | |
3049 | } | |
3050 | return ret; | |
3051 | } | |
3052 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
3053 | ||
b6f4bb38 | 3054 | /** |
3055 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
3056 | * mixer info callback | |
3057 | * @kcontrol: mixer control | |
3058 | * @uinfo: control element information | |
3059 | * | |
3060 | * Returns 0 for success. | |
3061 | */ | |
3062 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3063 | struct snd_ctl_elem_info *uinfo) | |
3064 | { | |
3065 | struct soc_mixer_control *mc = | |
3066 | (struct soc_mixer_control *)kcontrol->private_value; | |
3067 | int max = mc->max; | |
3068 | int min = mc->min; | |
3069 | ||
3070 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
3071 | uinfo->count = 2; | |
3072 | uinfo->value.integer.min = 0; | |
3073 | uinfo->value.integer.max = max-min; | |
3074 | ||
3075 | return 0; | |
3076 | } | |
3077 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
3078 | ||
3079 | /** | |
3080 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
3081 | * mixer get callback | |
3082 | * @kcontrol: mixer control | |
3083 | * @uinfo: control element information | |
3084 | * | |
3085 | * Returns 0 for success. | |
3086 | */ | |
3087 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3088 | struct snd_ctl_elem_value *ucontrol) | |
3089 | { | |
3090 | struct soc_mixer_control *mc = | |
3091 | (struct soc_mixer_control *)kcontrol->private_value; | |
3092 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3093 | unsigned int mask = (1<<mc->shift)-1; | |
3094 | int min = mc->min; | |
3095 | int val = snd_soc_read(codec, mc->reg) & mask; | |
3096 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
3097 | ||
20630c7f SL |
3098 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
3099 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 3100 | return 0; |
3101 | } | |
3102 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
3103 | ||
3104 | /** | |
3105 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
3106 | * mixer put callback | |
3107 | * @kcontrol: mixer control | |
3108 | * @uinfo: control element information | |
3109 | * | |
3110 | * Returns 0 for success. | |
3111 | */ | |
3112 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3113 | struct snd_ctl_elem_value *ucontrol) | |
3114 | { | |
3115 | struct soc_mixer_control *mc = | |
3116 | (struct soc_mixer_control *)kcontrol->private_value; | |
3117 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3118 | unsigned int mask = (1<<mc->shift)-1; | |
3119 | int min = mc->min; | |
3120 | int ret; | |
3121 | unsigned int val, valr, oval, ovalr; | |
3122 | ||
3123 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
3124 | val &= mask; | |
3125 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
3126 | valr &= mask; | |
3127 | ||
3128 | oval = snd_soc_read(codec, mc->reg) & mask; | |
3129 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
3130 | ||
3131 | ret = 0; | |
3132 | if (oval != val) { | |
3133 | ret = snd_soc_write(codec, mc->reg, val); | |
3134 | if (ret < 0) | |
f1df5aec | 3135 | return ret; |
b6f4bb38 | 3136 | } |
3137 | if (ovalr != valr) { | |
3138 | ret = snd_soc_write(codec, mc->rreg, valr); | |
3139 | if (ret < 0) | |
f1df5aec | 3140 | return ret; |
b6f4bb38 | 3141 | } |
3142 | ||
3143 | return 0; | |
3144 | } | |
3145 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
3146 | ||
8c6529db LG |
3147 | /** |
3148 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3149 | * @dai: DAI | |
3150 | * @clk_id: DAI specific clock ID | |
3151 | * @freq: new clock frequency in Hz | |
3152 | * @dir: new clock direction - input/output. | |
3153 | * | |
3154 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3155 | */ | |
3156 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3157 | unsigned int freq, int dir) | |
3158 | { | |
f0fba2ad LG |
3159 | if (dai->driver && dai->driver->ops->set_sysclk) |
3160 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a MB |
3161 | else if (dai->codec && dai->codec->driver->set_sysclk) |
3162 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, | |
3163 | freq, dir); | |
8c6529db LG |
3164 | else |
3165 | return -EINVAL; | |
3166 | } | |
3167 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3168 | ||
ec4ee52a MB |
3169 | /** |
3170 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
3171 | * @codec: CODEC | |
3172 | * @clk_id: DAI specific clock ID | |
3173 | * @freq: new clock frequency in Hz | |
3174 | * @dir: new clock direction - input/output. | |
3175 | * | |
3176 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
3177 | */ | |
3178 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
3179 | unsigned int freq, int dir) | |
3180 | { | |
3181 | if (codec->driver->set_sysclk) | |
3182 | return codec->driver->set_sysclk(codec, clk_id, freq, dir); | |
3183 | else | |
3184 | return -EINVAL; | |
3185 | } | |
3186 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
3187 | ||
8c6529db LG |
3188 | /** |
3189 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3190 | * @dai: DAI | |
ac11a2b3 | 3191 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3192 | * @div: new clock divisor. |
3193 | * | |
3194 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3195 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3196 | * and frame clocks as low as possible to save system power. | |
3197 | */ | |
3198 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3199 | int div_id, int div) | |
3200 | { | |
f0fba2ad LG |
3201 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3202 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3203 | else |
3204 | return -EINVAL; | |
3205 | } | |
3206 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3207 | ||
3208 | /** | |
3209 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3210 | * @dai: DAI | |
3211 | * @pll_id: DAI specific PLL ID | |
85488037 | 3212 | * @source: DAI specific source for the PLL |
8c6529db LG |
3213 | * @freq_in: PLL input clock frequency in Hz |
3214 | * @freq_out: requested PLL output clock frequency in Hz | |
3215 | * | |
3216 | * Configures and enables PLL to generate output clock based on input clock. | |
3217 | */ | |
85488037 MB |
3218 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3219 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3220 | { |
f0fba2ad LG |
3221 | if (dai->driver && dai->driver->ops->set_pll) |
3222 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3223 | freq_in, freq_out); |
ec4ee52a MB |
3224 | else if (dai->codec && dai->codec->driver->set_pll) |
3225 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
3226 | freq_in, freq_out); | |
8c6529db LG |
3227 | else |
3228 | return -EINVAL; | |
3229 | } | |
3230 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3231 | ||
ec4ee52a MB |
3232 | /* |
3233 | * snd_soc_codec_set_pll - configure codec PLL. | |
3234 | * @codec: CODEC | |
3235 | * @pll_id: DAI specific PLL ID | |
3236 | * @source: DAI specific source for the PLL | |
3237 | * @freq_in: PLL input clock frequency in Hz | |
3238 | * @freq_out: requested PLL output clock frequency in Hz | |
3239 | * | |
3240 | * Configures and enables PLL to generate output clock based on input clock. | |
3241 | */ | |
3242 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
3243 | unsigned int freq_in, unsigned int freq_out) | |
3244 | { | |
3245 | if (codec->driver->set_pll) | |
3246 | return codec->driver->set_pll(codec, pll_id, source, | |
3247 | freq_in, freq_out); | |
3248 | else | |
3249 | return -EINVAL; | |
3250 | } | |
3251 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
3252 | ||
8c6529db LG |
3253 | /** |
3254 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3255 | * @dai: DAI | |
8c6529db LG |
3256 | * @fmt: SND_SOC_DAIFMT_ format value. |
3257 | * | |
3258 | * Configures the DAI hardware format and clocking. | |
3259 | */ | |
3260 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3261 | { | |
f0fba2ad LG |
3262 | if (dai->driver && dai->driver->ops->set_fmt) |
3263 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3264 | else |
3265 | return -EINVAL; | |
3266 | } | |
3267 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3268 | ||
3269 | /** | |
3270 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3271 | * @dai: DAI | |
a5479e38 DR |
3272 | * @tx_mask: bitmask representing active TX slots. |
3273 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3274 | * @slots: Number of slots in use. |
a5479e38 | 3275 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3276 | * |
3277 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3278 | * specific. | |
3279 | */ | |
3280 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3281 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3282 | { |
f0fba2ad LG |
3283 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3284 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3285 | slots, slot_width); |
8c6529db LG |
3286 | else |
3287 | return -EINVAL; | |
3288 | } | |
3289 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3290 | ||
472df3cb BS |
3291 | /** |
3292 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3293 | * @dai: DAI | |
3294 | * @tx_num: how many TX channels | |
3295 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3296 | * 0~num-1 uses | |
3297 | * @rx_num: how many RX channels | |
3298 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3299 | * 0~num-1 uses | |
3300 | * | |
3301 | * configure the relationship between channel number and TDM slot number. | |
3302 | */ | |
3303 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3304 | unsigned int tx_num, unsigned int *tx_slot, | |
3305 | unsigned int rx_num, unsigned int *rx_slot) | |
3306 | { | |
f0fba2ad LG |
3307 | if (dai->driver && dai->driver->ops->set_channel_map) |
3308 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3309 | rx_num, rx_slot); |
3310 | else | |
3311 | return -EINVAL; | |
3312 | } | |
3313 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3314 | ||
8c6529db LG |
3315 | /** |
3316 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3317 | * @dai: DAI | |
3318 | * @tristate: tristate enable | |
3319 | * | |
3320 | * Tristates the DAI so that others can use it. | |
3321 | */ | |
3322 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3323 | { | |
f0fba2ad LG |
3324 | if (dai->driver && dai->driver->ops->set_tristate) |
3325 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3326 | else |
3327 | return -EINVAL; | |
3328 | } | |
3329 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3330 | ||
3331 | /** | |
3332 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3333 | * @dai: DAI | |
3334 | * @mute: mute enable | |
3335 | * | |
3336 | * Mutes the DAI DAC. | |
3337 | */ | |
3338 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3339 | { | |
f0fba2ad LG |
3340 | if (dai->driver && dai->driver->ops->digital_mute) |
3341 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3342 | else |
3343 | return -EINVAL; | |
3344 | } | |
3345 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3346 | ||
c5af3a2e MB |
3347 | /** |
3348 | * snd_soc_register_card - Register a card with the ASoC core | |
3349 | * | |
ac11a2b3 | 3350 | * @card: Card to register |
c5af3a2e | 3351 | * |
c5af3a2e | 3352 | */ |
70a7ca34 | 3353 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3354 | { |
f0fba2ad LG |
3355 | int i; |
3356 | ||
c5af3a2e MB |
3357 | if (!card->name || !card->dev) |
3358 | return -EINVAL; | |
3359 | ||
ed77cc12 MB |
3360 | dev_set_drvdata(card->dev, card); |
3361 | ||
111c6419 SW |
3362 | snd_soc_initialize_card_lists(card); |
3363 | ||
150dd2f8 VK |
3364 | soc_init_card_debugfs(card); |
3365 | ||
2eea392d JN |
3366 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3367 | (card->num_links + card->num_aux_devs), | |
3368 | GFP_KERNEL); | |
f0fba2ad LG |
3369 | if (card->rtd == NULL) |
3370 | return -ENOMEM; | |
2eea392d | 3371 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3372 | |
3373 | for (i = 0; i < card->num_links; i++) | |
3374 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3375 | ||
c5af3a2e MB |
3376 | INIT_LIST_HEAD(&card->list); |
3377 | card->instantiated = 0; | |
f0fba2ad | 3378 | mutex_init(&card->mutex); |
c5af3a2e MB |
3379 | |
3380 | mutex_lock(&client_mutex); | |
3381 | list_add(&card->list, &card_list); | |
435c5e25 | 3382 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3383 | mutex_unlock(&client_mutex); |
3384 | ||
3385 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3386 | ||
3387 | return 0; | |
3388 | } | |
70a7ca34 | 3389 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3390 | |
3391 | /** | |
3392 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3393 | * | |
ac11a2b3 | 3394 | * @card: Card to unregister |
c5af3a2e | 3395 | * |
c5af3a2e | 3396 | */ |
70a7ca34 | 3397 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3398 | { |
b0e26485 VK |
3399 | if (card->instantiated) |
3400 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3401 | mutex_lock(&client_mutex); |
3402 | list_del(&card->list); | |
3403 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3404 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3405 | ||
3406 | return 0; | |
3407 | } | |
70a7ca34 | 3408 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3409 | |
f0fba2ad LG |
3410 | /* |
3411 | * Simplify DAI link configuration by removing ".-1" from device names | |
3412 | * and sanitizing names. | |
3413 | */ | |
0b9a214a | 3414 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3415 | { |
3416 | char *found, name[NAME_SIZE]; | |
3417 | int id1, id2; | |
3418 | ||
3419 | if (dev_name(dev) == NULL) | |
3420 | return NULL; | |
3421 | ||
58818a77 | 3422 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3423 | |
3424 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3425 | found = strstr(name, dev->driver->name); | |
3426 | if (found) { | |
3427 | /* get ID */ | |
3428 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3429 | ||
3430 | /* discard ID from name if ID == -1 */ | |
3431 | if (*id == -1) | |
3432 | found[strlen(dev->driver->name)] = '\0'; | |
3433 | } | |
3434 | ||
3435 | } else { | |
3436 | /* I2C component devices are named "bus-addr" */ | |
3437 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3438 | char tmp[NAME_SIZE]; | |
3439 | ||
3440 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3441 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3442 | |
3443 | /* sanitize component name for DAI link creation */ | |
3444 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3445 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3446 | } else |
3447 | *id = 0; | |
3448 | } | |
3449 | ||
3450 | return kstrdup(name, GFP_KERNEL); | |
3451 | } | |
3452 | ||
3453 | /* | |
3454 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3455 | * any ".-1" and using the DAI name (instead of device name). | |
3456 | */ | |
3457 | static inline char *fmt_multiple_name(struct device *dev, | |
3458 | struct snd_soc_dai_driver *dai_drv) | |
3459 | { | |
3460 | if (dai_drv->name == NULL) { | |
3461 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3462 | dev_name(dev)); | |
3463 | return NULL; | |
3464 | } | |
3465 | ||
3466 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3467 | } | |
3468 | ||
9115171a MB |
3469 | /** |
3470 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3471 | * | |
ac11a2b3 | 3472 | * @dai: DAI to register |
9115171a | 3473 | */ |
f0fba2ad LG |
3474 | int snd_soc_register_dai(struct device *dev, |
3475 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3476 | { |
f0fba2ad LG |
3477 | struct snd_soc_dai *dai; |
3478 | ||
3479 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3480 | |
f0fba2ad LG |
3481 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3482 | if (dai == NULL) | |
a7393623 | 3483 | return -ENOMEM; |
9115171a | 3484 | |
f0fba2ad LG |
3485 | /* create DAI component name */ |
3486 | dai->name = fmt_single_name(dev, &dai->id); | |
3487 | if (dai->name == NULL) { | |
3488 | kfree(dai); | |
3489 | return -ENOMEM; | |
3490 | } | |
6335d055 | 3491 | |
f0fba2ad LG |
3492 | dai->dev = dev; |
3493 | dai->driver = dai_drv; | |
3494 | if (!dai->driver->ops) | |
3495 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3496 | |
3497 | mutex_lock(&client_mutex); | |
3498 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3499 | snd_soc_instantiate_cards(); |
9115171a MB |
3500 | mutex_unlock(&client_mutex); |
3501 | ||
3502 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3503 | ||
3504 | return 0; | |
3505 | } | |
3506 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3507 | ||
3508 | /** | |
3509 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3510 | * | |
ac11a2b3 | 3511 | * @dai: DAI to unregister |
9115171a | 3512 | */ |
f0fba2ad | 3513 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3514 | { |
f0fba2ad LG |
3515 | struct snd_soc_dai *dai; |
3516 | ||
3517 | list_for_each_entry(dai, &dai_list, list) { | |
3518 | if (dev == dai->dev) | |
3519 | goto found; | |
3520 | } | |
3521 | return; | |
3522 | ||
3523 | found: | |
9115171a MB |
3524 | mutex_lock(&client_mutex); |
3525 | list_del(&dai->list); | |
3526 | mutex_unlock(&client_mutex); | |
3527 | ||
3528 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3529 | kfree(dai->name); |
3530 | kfree(dai); | |
9115171a MB |
3531 | } |
3532 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3533 | ||
3534 | /** | |
3535 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3536 | * | |
ac11a2b3 MB |
3537 | * @dai: Array of DAIs to register |
3538 | * @count: Number of DAIs | |
9115171a | 3539 | */ |
f0fba2ad LG |
3540 | int snd_soc_register_dais(struct device *dev, |
3541 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3542 | { |
f0fba2ad LG |
3543 | struct snd_soc_dai *dai; |
3544 | int i, ret = 0; | |
3545 | ||
720ffa4c | 3546 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3547 | |
3548 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3549 | |
3550 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3551 | if (dai == NULL) { |
3552 | ret = -ENOMEM; | |
3553 | goto err; | |
3554 | } | |
f0fba2ad LG |
3555 | |
3556 | /* create DAI component name */ | |
3557 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3558 | if (dai->name == NULL) { | |
3559 | kfree(dai); | |
3560 | ret = -EINVAL; | |
9115171a | 3561 | goto err; |
f0fba2ad LG |
3562 | } |
3563 | ||
3564 | dai->dev = dev; | |
f0fba2ad | 3565 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3566 | if (dai->driver->id) |
3567 | dai->id = dai->driver->id; | |
3568 | else | |
3569 | dai->id = i; | |
f0fba2ad LG |
3570 | if (!dai->driver->ops) |
3571 | dai->driver->ops = &null_dai_ops; | |
3572 | ||
3573 | mutex_lock(&client_mutex); | |
3574 | list_add(&dai->list, &dai_list); | |
3575 | mutex_unlock(&client_mutex); | |
3576 | ||
3577 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3578 | } |
3579 | ||
1dcb4f38 | 3580 | mutex_lock(&client_mutex); |
f0fba2ad | 3581 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3582 | mutex_unlock(&client_mutex); |
9115171a MB |
3583 | return 0; |
3584 | ||
3585 | err: | |
3586 | for (i--; i >= 0; i--) | |
f0fba2ad | 3587 | snd_soc_unregister_dai(dev); |
9115171a MB |
3588 | |
3589 | return ret; | |
3590 | } | |
3591 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3592 | ||
3593 | /** | |
3594 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3595 | * | |
ac11a2b3 MB |
3596 | * @dai: Array of DAIs to unregister |
3597 | * @count: Number of DAIs | |
9115171a | 3598 | */ |
f0fba2ad | 3599 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3600 | { |
3601 | int i; | |
3602 | ||
3603 | for (i = 0; i < count; i++) | |
f0fba2ad | 3604 | snd_soc_unregister_dai(dev); |
9115171a MB |
3605 | } |
3606 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3607 | ||
12a48a8c MB |
3608 | /** |
3609 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3610 | * | |
ac11a2b3 | 3611 | * @platform: platform to register |
12a48a8c | 3612 | */ |
f0fba2ad LG |
3613 | int snd_soc_register_platform(struct device *dev, |
3614 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3615 | { |
f0fba2ad LG |
3616 | struct snd_soc_platform *platform; |
3617 | ||
3618 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3619 | ||
3620 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3621 | if (platform == NULL) | |
a7393623 | 3622 | return -ENOMEM; |
f0fba2ad LG |
3623 | |
3624 | /* create platform component name */ | |
3625 | platform->name = fmt_single_name(dev, &platform->id); | |
3626 | if (platform->name == NULL) { | |
3627 | kfree(platform); | |
3628 | return -ENOMEM; | |
3629 | } | |
12a48a8c | 3630 | |
f0fba2ad LG |
3631 | platform->dev = dev; |
3632 | platform->driver = platform_drv; | |
12a48a8c MB |
3633 | |
3634 | mutex_lock(&client_mutex); | |
3635 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3636 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3637 | mutex_unlock(&client_mutex); |
3638 | ||
3639 | pr_debug("Registered platform '%s'\n", platform->name); | |
3640 | ||
3641 | return 0; | |
3642 | } | |
3643 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3644 | ||
3645 | /** | |
3646 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3647 | * | |
ac11a2b3 | 3648 | * @platform: platform to unregister |
12a48a8c | 3649 | */ |
f0fba2ad | 3650 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3651 | { |
f0fba2ad LG |
3652 | struct snd_soc_platform *platform; |
3653 | ||
3654 | list_for_each_entry(platform, &platform_list, list) { | |
3655 | if (dev == platform->dev) | |
3656 | goto found; | |
3657 | } | |
3658 | return; | |
3659 | ||
3660 | found: | |
12a48a8c MB |
3661 | mutex_lock(&client_mutex); |
3662 | list_del(&platform->list); | |
3663 | mutex_unlock(&client_mutex); | |
3664 | ||
3665 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3666 | kfree(platform->name); |
3667 | kfree(platform); | |
12a48a8c MB |
3668 | } |
3669 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3670 | ||
151ab22c MB |
3671 | static u64 codec_format_map[] = { |
3672 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3673 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3674 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3675 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3676 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3677 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3678 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3679 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3680 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3681 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3682 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3683 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3684 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3685 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3686 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3687 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3688 | }; | |
3689 | ||
3690 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3691 | * the endianness of the data but we're using the CPU format | |
3692 | * definitions which do need to include endianness so we ensure that | |
3693 | * codec DAIs always have both big and little endian variants set. | |
3694 | */ | |
3695 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3696 | { | |
3697 | int i; | |
3698 | ||
3699 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3700 | if (stream->formats & codec_format_map[i]) | |
3701 | stream->formats |= codec_format_map[i]; | |
3702 | } | |
3703 | ||
0d0cf00a MB |
3704 | /** |
3705 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3706 | * | |
ac11a2b3 | 3707 | * @codec: codec to register |
0d0cf00a | 3708 | */ |
f0fba2ad | 3709 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3710 | const struct snd_soc_codec_driver *codec_drv, |
3711 | struct snd_soc_dai_driver *dai_drv, | |
3712 | int num_dai) | |
0d0cf00a | 3713 | { |
3335ddca | 3714 | size_t reg_size; |
f0fba2ad LG |
3715 | struct snd_soc_codec *codec; |
3716 | int ret, i; | |
151ab22c | 3717 | |
f0fba2ad LG |
3718 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3719 | ||
3720 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3721 | if (codec == NULL) | |
3722 | return -ENOMEM; | |
0d0cf00a | 3723 | |
f0fba2ad LG |
3724 | /* create CODEC component name */ |
3725 | codec->name = fmt_single_name(dev, &codec->id); | |
3726 | if (codec->name == NULL) { | |
3727 | kfree(codec); | |
3728 | return -ENOMEM; | |
3729 | } | |
3730 | ||
23bbce34 DP |
3731 | if (codec_drv->compress_type) |
3732 | codec->compress_type = codec_drv->compress_type; | |
3733 | else | |
3734 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3735 | ||
c3acec26 MB |
3736 | codec->write = codec_drv->write; |
3737 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3738 | codec->volatile_register = codec_drv->volatile_register; |
3739 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3740 | codec->writable_register = codec_drv->writable_register; |
ce6120cc LG |
3741 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3742 | codec->dapm.dev = dev; | |
3743 | codec->dapm.codec = codec; | |
474b62d6 | 3744 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3745 | codec->dev = dev; |
3746 | codec->driver = codec_drv; | |
3747 | codec->num_dai = num_dai; | |
3748 | mutex_init(&codec->mutex); | |
ce6120cc | 3749 | |
f0fba2ad LG |
3750 | /* allocate CODEC register cache */ |
3751 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3752 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3753 | codec->reg_size = reg_size; |
3335ddca DP |
3754 | /* it is necessary to make a copy of the default register cache |
3755 | * because in the case of using a compression type that requires | |
3756 | * the default register cache to be marked as __devinitconst the | |
3757 | * kernel might have freed the array by the time we initialize | |
3758 | * the cache. | |
3759 | */ | |
2aa86323 DP |
3760 | if (codec_drv->reg_cache_default) { |
3761 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3762 | reg_size, GFP_KERNEL); | |
3763 | if (!codec->reg_def_copy) { | |
3764 | ret = -ENOMEM; | |
3765 | goto fail; | |
3766 | } | |
f0fba2ad | 3767 | } |
151ab22c MB |
3768 | } |
3769 | ||
1500b7b5 DP |
3770 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3771 | if (!codec->volatile_register) | |
3772 | codec->volatile_register = snd_soc_default_volatile_register; | |
3773 | if (!codec->readable_register) | |
3774 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3775 | if (!codec->writable_register) |
3776 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3777 | } |
3778 | ||
f0fba2ad LG |
3779 | for (i = 0; i < num_dai; i++) { |
3780 | fixup_codec_formats(&dai_drv[i].playback); | |
3781 | fixup_codec_formats(&dai_drv[i].capture); | |
3782 | } | |
3783 | ||
26b01ccd MB |
3784 | /* register any DAIs */ |
3785 | if (num_dai) { | |
3786 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3787 | if (ret < 0) | |
fdf0f54d | 3788 | goto fail; |
26b01ccd | 3789 | } |
f0fba2ad | 3790 | |
0d0cf00a MB |
3791 | mutex_lock(&client_mutex); |
3792 | list_add(&codec->list, &codec_list); | |
3793 | snd_soc_instantiate_cards(); | |
3794 | mutex_unlock(&client_mutex); | |
3795 | ||
3796 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3797 | return 0; |
f0fba2ad | 3798 | |
fdf0f54d | 3799 | fail: |
3335ddca DP |
3800 | kfree(codec->reg_def_copy); |
3801 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3802 | kfree(codec->name); |
3803 | kfree(codec); | |
3804 | return ret; | |
0d0cf00a MB |
3805 | } |
3806 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3807 | ||
3808 | /** | |
3809 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3810 | * | |
ac11a2b3 | 3811 | * @codec: codec to unregister |
0d0cf00a | 3812 | */ |
f0fba2ad | 3813 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3814 | { |
f0fba2ad LG |
3815 | struct snd_soc_codec *codec; |
3816 | int i; | |
3817 | ||
3818 | list_for_each_entry(codec, &codec_list, list) { | |
3819 | if (dev == codec->dev) | |
3820 | goto found; | |
3821 | } | |
3822 | return; | |
3823 | ||
3824 | found: | |
26b01ccd MB |
3825 | if (codec->num_dai) |
3826 | for (i = 0; i < codec->num_dai; i++) | |
3827 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3828 | |
0d0cf00a MB |
3829 | mutex_lock(&client_mutex); |
3830 | list_del(&codec->list); | |
3831 | mutex_unlock(&client_mutex); | |
3832 | ||
3833 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3834 | |
7a30a3db | 3835 | snd_soc_cache_exit(codec); |
3335ddca | 3836 | kfree(codec->reg_def_copy); |
1aafcd4d | 3837 | kfree(codec->name); |
f0fba2ad | 3838 | kfree(codec); |
0d0cf00a MB |
3839 | } |
3840 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3841 | ||
c9b3a40f | 3842 | static int __init snd_soc_init(void) |
db2a4165 | 3843 | { |
384c89e2 | 3844 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3845 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3846 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3847 | printk(KERN_WARNING |
3848 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3849 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3850 | } |
c3c5a19a | 3851 | |
8a9dab1a | 3852 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3853 | &codec_list_fops)) |
3854 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3855 | ||
8a9dab1a | 3856 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3857 | &dai_list_fops)) |
3858 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3859 | |
8a9dab1a | 3860 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3861 | &platform_list_fops)) |
3862 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3863 | #endif |
3864 | ||
fb257897 MB |
3865 | snd_soc_util_init(); |
3866 | ||
db2a4165 FM |
3867 | return platform_driver_register(&soc_driver); |
3868 | } | |
4abe8e16 | 3869 | module_init(snd_soc_init); |
db2a4165 | 3870 | |
7d8c16a6 | 3871 | static void __exit snd_soc_exit(void) |
db2a4165 | 3872 | { |
fb257897 MB |
3873 | snd_soc_util_exit(); |
3874 | ||
384c89e2 | 3875 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3876 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3877 | #endif |
3ff3f64b | 3878 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3879 | } |
db2a4165 FM |
3880 | module_exit(snd_soc_exit); |
3881 | ||
3882 | /* Module information */ | |
d331124d | 3883 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3884 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3885 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3886 | MODULE_ALIAS("platform:soc-audio"); |