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 | ||
89b95ac0 MB |
1496 | if (driver->probe) { |
1497 | ret = driver->probe(codec); | |
589c3563 JN |
1498 | if (ret < 0) { |
1499 | dev_err(codec->dev, | |
1500 | "asoc: failed to probe CODEC %s: %d\n", | |
1501 | codec->name, ret); | |
70d29331 | 1502 | goto err_probe; |
589c3563 JN |
1503 | } |
1504 | } | |
1505 | ||
b7af1daf MB |
1506 | if (driver->controls) |
1507 | snd_soc_add_controls(codec, driver->controls, | |
1508 | driver->num_controls); | |
89b95ac0 MB |
1509 | if (driver->dapm_widgets) |
1510 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1511 | driver->num_dapm_widgets); | |
1512 | if (driver->dapm_routes) | |
1513 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1514 | driver->num_dapm_routes); | |
1515 | ||
589c3563 JN |
1516 | soc_init_codec_debugfs(codec); |
1517 | ||
1518 | /* mark codec as probed and add to card codec list */ | |
1519 | codec->probed = 1; | |
1520 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1521 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1522 | |
70d29331 JN |
1523 | return 0; |
1524 | ||
1525 | err_probe: | |
1526 | module_put(codec->dev->driver->owner); | |
1527 | ||
589c3563 JN |
1528 | return ret; |
1529 | } | |
1530 | ||
f0fba2ad LG |
1531 | static void rtd_release(struct device *dev) {} |
1532 | ||
589c3563 JN |
1533 | static int soc_post_component_init(struct snd_soc_card *card, |
1534 | struct snd_soc_codec *codec, | |
1535 | int num, int dailess) | |
1536 | { | |
1537 | struct snd_soc_dai_link *dai_link = NULL; | |
1538 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1539 | struct snd_soc_pcm_runtime *rtd; | |
1540 | const char *temp, *name; | |
1541 | int ret = 0; | |
1542 | ||
1543 | if (!dailess) { | |
1544 | dai_link = &card->dai_link[num]; | |
1545 | rtd = &card->rtd[num]; | |
1546 | name = dai_link->name; | |
1547 | } else { | |
1548 | aux_dev = &card->aux_dev[num]; | |
1549 | rtd = &card->rtd_aux[num]; | |
1550 | name = aux_dev->name; | |
1551 | } | |
0962bb21 | 1552 | rtd->card = card; |
589c3563 JN |
1553 | |
1554 | /* machine controls, routes and widgets are not prefixed */ | |
1555 | temp = codec->name_prefix; | |
1556 | codec->name_prefix = NULL; | |
1557 | ||
1558 | /* do machine specific initialization */ | |
1559 | if (!dailess && dai_link->init) | |
1560 | ret = dai_link->init(rtd); | |
1561 | else if (dailess && aux_dev->init) | |
1562 | ret = aux_dev->init(&codec->dapm); | |
1563 | if (ret < 0) { | |
1564 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1565 | return ret; | |
1566 | } | |
1567 | codec->name_prefix = temp; | |
1568 | ||
1569 | /* Make sure all DAPM widgets are instantiated */ | |
1570 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1571 | |
1572 | /* register the rtd device */ | |
1573 | rtd->codec = codec; | |
589c3563 JN |
1574 | rtd->dev.parent = card->dev; |
1575 | rtd->dev.release = rtd_release; | |
1576 | rtd->dev.init_name = name; | |
1577 | ret = device_register(&rtd->dev); | |
1578 | if (ret < 0) { | |
1579 | dev_err(card->dev, | |
1580 | "asoc: failed to register runtime device: %d\n", ret); | |
1581 | return ret; | |
1582 | } | |
1583 | rtd->dev_registered = 1; | |
1584 | ||
1585 | /* add DAPM sysfs entries for this codec */ | |
1586 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1587 | if (ret < 0) | |
1588 | dev_err(codec->dev, | |
1589 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1590 | ret); | |
1591 | ||
1592 | /* add codec sysfs entries */ | |
1593 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1594 | if (ret < 0) | |
1595 | dev_err(codec->dev, | |
1596 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1597 | ||
1598 | return 0; | |
1599 | } | |
1600 | ||
f0fba2ad LG |
1601 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1602 | { | |
1603 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1604 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1605 | struct snd_soc_codec *codec = rtd->codec; | |
1606 | struct snd_soc_platform *platform = rtd->platform; | |
1607 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1608 | int ret; | |
1609 | ||
1610 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1611 | ||
1612 | /* config components */ | |
1613 | codec_dai->codec = codec; | |
f0fba2ad | 1614 | cpu_dai->platform = platform; |
f0fba2ad LG |
1615 | codec_dai->card = card; |
1616 | cpu_dai->card = card; | |
1617 | ||
1618 | /* set default power off timeout */ | |
1619 | rtd->pmdown_time = pmdown_time; | |
1620 | ||
1621 | /* probe the cpu_dai */ | |
1622 | if (!cpu_dai->probed) { | |
1623 | if (cpu_dai->driver->probe) { | |
1624 | ret = cpu_dai->driver->probe(cpu_dai); | |
1625 | if (ret < 0) { | |
1626 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1627 | cpu_dai->name); | |
1628 | return ret; | |
1629 | } | |
1630 | } | |
1631 | cpu_dai->probed = 1; | |
1632 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1633 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1634 | } |
1635 | ||
f0fba2ad LG |
1636 | /* probe the CODEC */ |
1637 | if (!codec->probed) { | |
589c3563 JN |
1638 | ret = soc_probe_codec(card, codec); |
1639 | if (ret < 0) | |
1640 | return ret; | |
db2a4165 FM |
1641 | } |
1642 | ||
f0fba2ad LG |
1643 | /* probe the platform */ |
1644 | if (!platform->probed) { | |
70d29331 JN |
1645 | if (!try_module_get(platform->dev->driver->owner)) |
1646 | return -ENODEV; | |
1647 | ||
f0fba2ad LG |
1648 | if (platform->driver->probe) { |
1649 | ret = platform->driver->probe(platform); | |
1650 | if (ret < 0) { | |
1651 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1652 | platform->name); | |
70d29331 | 1653 | module_put(platform->dev->driver->owner); |
f0fba2ad LG |
1654 | return ret; |
1655 | } | |
1656 | } | |
1657 | /* mark platform as probed and add to card platform list */ | |
1658 | platform->probed = 1; | |
1659 | list_add(&platform->card_list, &card->platform_dev_list); | |
1660 | } | |
6ed25978 | 1661 | |
f0fba2ad LG |
1662 | /* probe the CODEC DAI */ |
1663 | if (!codec_dai->probed) { | |
1664 | if (codec_dai->driver->probe) { | |
1665 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1666 | if (ret < 0) { |
f0fba2ad LG |
1667 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1668 | codec_dai->name); | |
1669 | return ret; | |
fe3e78e0 MB |
1670 | } |
1671 | } | |
f0fba2ad LG |
1672 | |
1673 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1674 | codec_dai->probed = 1; | |
1675 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1676 | } |
1677 | ||
f0fba2ad LG |
1678 | /* DAPM dai link stream work */ |
1679 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1680 | ||
589c3563 JN |
1681 | ret = soc_post_component_init(card, codec, num, 0); |
1682 | if (ret) | |
f0fba2ad | 1683 | return ret; |
fe3e78e0 | 1684 | |
f0fba2ad LG |
1685 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1686 | if (ret < 0) | |
1687 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1688 | ||
f0fba2ad LG |
1689 | /* create the pcm */ |
1690 | ret = soc_new_pcm(rtd, num); | |
1691 | if (ret < 0) { | |
1692 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1693 | return ret; | |
1694 | } | |
1695 | ||
1696 | /* add platform data for AC97 devices */ | |
1697 | if (rtd->codec_dai->driver->ac97_control) | |
1698 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1699 | ||
1700 | return 0; | |
1701 | } | |
1702 | ||
fe3e78e0 | 1703 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1704 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1705 | { | |
1706 | int ret; | |
1707 | ||
fe3e78e0 MB |
1708 | /* Only instantiate AC97 if not already done by the adaptor |
1709 | * for the generic AC97 subsystem. | |
1710 | */ | |
f0fba2ad | 1711 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1712 | /* |
1713 | * It is possible that the AC97 device is already registered to | |
1714 | * the device subsystem. This happens when the device is created | |
1715 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1716 | * is the generic AC97 glue but others migh emerge. | |
1717 | * | |
1718 | * In those cases we don't try to register the device again. | |
1719 | */ | |
1720 | if (!rtd->codec->ac97_created) | |
1721 | return 0; | |
f0fba2ad LG |
1722 | |
1723 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1724 | if (ret < 0) { |
1725 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1726 | return ret; |
fe3e78e0 | 1727 | } |
f0fba2ad LG |
1728 | |
1729 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1730 | } |
f0fba2ad LG |
1731 | return 0; |
1732 | } | |
1733 | ||
1734 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1735 | { | |
1736 | if (codec->ac97_registered) { | |
1737 | soc_ac97_dev_unregister(codec); | |
1738 | codec->ac97_registered = 0; | |
1739 | } | |
1740 | } | |
fe3e78e0 MB |
1741 | #endif |
1742 | ||
2eea392d JN |
1743 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1744 | { | |
1745 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1746 | struct snd_soc_codec *codec; |
676ad98a | 1747 | int ret = -ENODEV; |
2eea392d JN |
1748 | |
1749 | /* find CODEC from registered CODECs*/ | |
1750 | list_for_each_entry(codec, &codec_list, list) { | |
1751 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1752 | if (codec->probed) { | |
1753 | dev_err(codec->dev, | |
1754 | "asoc: codec already probed"); | |
1755 | ret = -EBUSY; | |
1756 | goto out; | |
1757 | } | |
676ad98a | 1758 | goto found; |
2eea392d JN |
1759 | } |
1760 | } | |
676ad98a JN |
1761 | /* codec not found */ |
1762 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1763 | goto out; | |
2eea392d | 1764 | |
676ad98a | 1765 | found: |
589c3563 | 1766 | ret = soc_probe_codec(card, codec); |
2eea392d | 1767 | if (ret < 0) |
589c3563 | 1768 | return ret; |
2eea392d | 1769 | |
589c3563 | 1770 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1771 | |
1772 | out: | |
1773 | return ret; | |
1774 | } | |
1775 | ||
1776 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1777 | { | |
1778 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1779 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1780 | |
1781 | /* unregister the rtd device */ | |
1782 | if (rtd->dev_registered) { | |
589c3563 | 1783 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1784 | device_unregister(&rtd->dev); |
1785 | rtd->dev_registered = 0; | |
1786 | } | |
1787 | ||
589c3563 JN |
1788 | if (codec && codec->probed) |
1789 | soc_remove_codec(codec); | |
2eea392d JN |
1790 | } |
1791 | ||
fdf0f54d DP |
1792 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1793 | enum snd_soc_compress_type compress_type) | |
1794 | { | |
1795 | int ret; | |
1796 | ||
1797 | if (codec->cache_init) | |
1798 | return 0; | |
1799 | ||
1800 | /* override the compress_type if necessary */ | |
1801 | if (compress_type && codec->compress_type != compress_type) | |
1802 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1803 | ret = snd_soc_cache_init(codec); |
1804 | if (ret < 0) { | |
1805 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1806 | ret); | |
1807 | return ret; | |
1808 | } | |
1809 | codec->cache_init = 1; | |
1810 | return 0; | |
1811 | } | |
1812 | ||
f0fba2ad LG |
1813 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1814 | { | |
fdf0f54d DP |
1815 | struct snd_soc_codec *codec; |
1816 | struct snd_soc_codec_conf *codec_conf; | |
1817 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1818 | int ret, i; |
fe3e78e0 | 1819 | |
f0fba2ad | 1820 | mutex_lock(&card->mutex); |
dbe21408 | 1821 | |
f0fba2ad LG |
1822 | if (card->instantiated) { |
1823 | mutex_unlock(&card->mutex); | |
1824 | return; | |
1825 | } | |
fe3e78e0 | 1826 | |
f0fba2ad LG |
1827 | /* bind DAIs */ |
1828 | for (i = 0; i < card->num_links; i++) | |
1829 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1830 | |
f0fba2ad LG |
1831 | /* bind completed ? */ |
1832 | if (card->num_rtd != card->num_links) { | |
1833 | mutex_unlock(&card->mutex); | |
1834 | return; | |
1835 | } | |
435c5e25 | 1836 | |
fdf0f54d DP |
1837 | /* initialize the register cache for each available codec */ |
1838 | list_for_each_entry(codec, &codec_list, list) { | |
1839 | if (codec->cache_init) | |
1840 | continue; | |
861f2faf DP |
1841 | /* by default we don't override the compress_type */ |
1842 | compress_type = 0; | |
fdf0f54d DP |
1843 | /* check to see if we need to override the compress_type */ |
1844 | for (i = 0; i < card->num_configs; ++i) { | |
1845 | codec_conf = &card->codec_conf[i]; | |
1846 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1847 | compress_type = codec_conf->compress_type; | |
1848 | if (compress_type && compress_type | |
1849 | != codec->compress_type) | |
1850 | break; | |
1851 | } | |
1852 | } | |
fdf0f54d DP |
1853 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1854 | if (ret < 0) { | |
1855 | mutex_unlock(&card->mutex); | |
1856 | return; | |
1857 | } | |
1858 | } | |
1859 | ||
f0fba2ad LG |
1860 | /* card bind complete so register a sound card */ |
1861 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1862 | card->owner, 0, &card->snd_card); | |
1863 | if (ret < 0) { | |
1864 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1865 | card->name); | |
1866 | mutex_unlock(&card->mutex); | |
1867 | return; | |
1868 | } | |
1869 | card->snd_card->dev = card->dev; | |
1870 | ||
e37a4970 MB |
1871 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1872 | card->dapm.dev = card->dev; | |
1873 | card->dapm.card = card; | |
1874 | list_add(&card->dapm.list, &card->dapm_list); | |
1875 | ||
88ee1c61 | 1876 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1877 | /* deferred resume work */ |
1878 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1879 | #endif | |
db2a4165 | 1880 | |
9a841ebb MB |
1881 | if (card->dapm_widgets) |
1882 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1883 | card->num_dapm_widgets); | |
1884 | ||
f0fba2ad LG |
1885 | /* initialise the sound card only once */ |
1886 | if (card->probe) { | |
e7361ec4 | 1887 | ret = card->probe(card); |
f0fba2ad LG |
1888 | if (ret < 0) |
1889 | goto card_probe_error; | |
1890 | } | |
fe3e78e0 | 1891 | |
f0fba2ad LG |
1892 | for (i = 0; i < card->num_links; i++) { |
1893 | ret = soc_probe_dai_link(card, i); | |
1894 | if (ret < 0) { | |
321de0d0 MB |
1895 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1896 | card->name, ret); | |
f0fba2ad LG |
1897 | goto probe_dai_err; |
1898 | } | |
1899 | } | |
db2a4165 | 1900 | |
2eea392d JN |
1901 | for (i = 0; i < card->num_aux_devs; i++) { |
1902 | ret = soc_probe_aux_dev(card, i); | |
1903 | if (ret < 0) { | |
1904 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1905 | card->name, ret); | |
1906 | goto probe_aux_dev_err; | |
1907 | } | |
1908 | } | |
1909 | ||
b7af1daf MB |
1910 | /* We should have a non-codec control add function but we don't */ |
1911 | if (card->controls) | |
1912 | snd_soc_add_controls(list_first_entry(&card->codec_dev_list, | |
1913 | struct snd_soc_codec, | |
1914 | card_list), | |
1915 | card->controls, | |
1916 | card->num_controls); | |
1917 | ||
b8ad29de MB |
1918 | if (card->dapm_routes) |
1919 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1920 | card->num_dapm_routes); | |
1921 | ||
a2721fd9 | 1922 | #ifdef CONFIG_DEBUG_FS |
8eecaf62 | 1923 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); |
a2721fd9 | 1924 | #endif |
e37a4970 | 1925 | |
f0fba2ad LG |
1926 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1927 | "%s", card->name); | |
1928 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1929 | "%s", card->name); | |
1930 | ||
28e9ad92 MB |
1931 | if (card->late_probe) { |
1932 | ret = card->late_probe(card); | |
1933 | if (ret < 0) { | |
1934 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1935 | card->name, ret); | |
1936 | goto probe_aux_dev_err; | |
1937 | } | |
1938 | } | |
1939 | ||
f0fba2ad LG |
1940 | ret = snd_card_register(card->snd_card); |
1941 | if (ret < 0) { | |
1942 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1943 | goto probe_aux_dev_err; |
db2a4165 FM |
1944 | } |
1945 | ||
f0fba2ad LG |
1946 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1947 | /* register any AC97 codecs */ | |
1948 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1949 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1950 | if (ret < 0) { | |
1951 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1952 | while (--i >= 0) | |
7d8316df | 1953 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1954 | goto probe_aux_dev_err; |
f0fba2ad | 1955 | } |
6b3ed785 | 1956 | } |
f0fba2ad LG |
1957 | #endif |
1958 | ||
1959 | card->instantiated = 1; | |
1960 | mutex_unlock(&card->mutex); | |
1961 | return; | |
1962 | ||
2eea392d JN |
1963 | probe_aux_dev_err: |
1964 | for (i = 0; i < card->num_aux_devs; i++) | |
1965 | soc_remove_aux_dev(card, i); | |
1966 | ||
f0fba2ad | 1967 | probe_dai_err: |
0671fd8e | 1968 | soc_remove_dai_links(card); |
f0fba2ad LG |
1969 | |
1970 | card_probe_error: | |
87506549 | 1971 | if (card->remove) |
e7361ec4 | 1972 | card->remove(card); |
f0fba2ad LG |
1973 | |
1974 | snd_card_free(card->snd_card); | |
1975 | ||
1976 | mutex_unlock(&card->mutex); | |
435c5e25 | 1977 | } |
db2a4165 | 1978 | |
435c5e25 | 1979 | /* |
421f91d2 | 1980 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1981 | * client_mutex. |
1982 | */ | |
1983 | static void snd_soc_instantiate_cards(void) | |
1984 | { | |
1985 | struct snd_soc_card *card; | |
1986 | list_for_each_entry(card, &card_list, list) | |
1987 | snd_soc_instantiate_card(card); | |
1988 | } | |
1989 | ||
1990 | /* probes a new socdev */ | |
1991 | static int soc_probe(struct platform_device *pdev) | |
1992 | { | |
f0fba2ad | 1993 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1994 | int ret = 0; |
435c5e25 | 1995 | |
70a7ca34 VK |
1996 | /* |
1997 | * no card, so machine driver should be registering card | |
1998 | * we should not be here in that case so ret error | |
1999 | */ | |
2000 | if (!card) | |
2001 | return -EINVAL; | |
2002 | ||
435c5e25 MB |
2003 | /* Bodge while we unpick instantiation */ |
2004 | card->dev = &pdev->dev; | |
f0fba2ad | 2005 | |
435c5e25 MB |
2006 | ret = snd_soc_register_card(card); |
2007 | if (ret != 0) { | |
2008 | dev_err(&pdev->dev, "Failed to register card\n"); | |
2009 | return ret; | |
2010 | } | |
2011 | ||
2012 | return 0; | |
db2a4165 FM |
2013 | } |
2014 | ||
b0e26485 | 2015 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
2016 | { |
2017 | int i; | |
db2a4165 | 2018 | |
b0e26485 VK |
2019 | /* make sure any delayed work runs */ |
2020 | for (i = 0; i < card->num_rtd; i++) { | |
2021 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
2022 | flush_delayed_work_sync(&rtd->delayed_work); | |
2023 | } | |
914dc182 | 2024 | |
b0e26485 VK |
2025 | /* remove auxiliary devices */ |
2026 | for (i = 0; i < card->num_aux_devs; i++) | |
2027 | soc_remove_aux_dev(card, i); | |
db2a4165 | 2028 | |
b0e26485 | 2029 | /* remove and free each DAI */ |
0671fd8e | 2030 | soc_remove_dai_links(card); |
2eea392d | 2031 | |
b0e26485 | 2032 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2033 | |
b0e26485 VK |
2034 | /* remove the card */ |
2035 | if (card->remove) | |
e7361ec4 | 2036 | card->remove(card); |
a6052154 | 2037 | |
0aaae527 LPC |
2038 | snd_soc_dapm_free(&card->dapm); |
2039 | ||
b0e26485 VK |
2040 | kfree(card->rtd); |
2041 | snd_card_free(card->snd_card); | |
2042 | return 0; | |
2043 | ||
2044 | } | |
2045 | ||
2046 | /* removes a socdev */ | |
2047 | static int soc_remove(struct platform_device *pdev) | |
2048 | { | |
2049 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2050 | |
c5af3a2e | 2051 | snd_soc_unregister_card(card); |
db2a4165 FM |
2052 | return 0; |
2053 | } | |
2054 | ||
6f8ab4ac | 2055 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2056 | { |
6f8ab4ac | 2057 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 2058 | int i; |
51737470 MB |
2059 | |
2060 | if (!card->instantiated) | |
416356fc | 2061 | return 0; |
51737470 MB |
2062 | |
2063 | /* Flush out pmdown_time work - we actually do want to run it | |
2064 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
2065 | for (i = 0; i < card->num_rtd; i++) { |
2066 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 2067 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 2068 | } |
51737470 | 2069 | |
f0fba2ad | 2070 | snd_soc_dapm_shutdown(card); |
416356fc MB |
2071 | |
2072 | return 0; | |
51737470 | 2073 | } |
6f8ab4ac | 2074 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2075 | |
6f8ab4ac MB |
2076 | const struct dev_pm_ops snd_soc_pm_ops = { |
2077 | .suspend = snd_soc_suspend, | |
2078 | .resume = snd_soc_resume, | |
2079 | .poweroff = snd_soc_poweroff, | |
416356fc | 2080 | }; |
deb2607e | 2081 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2082 | |
db2a4165 FM |
2083 | /* ASoC platform driver */ |
2084 | static struct platform_driver soc_driver = { | |
2085 | .driver = { | |
2086 | .name = "soc-audio", | |
8b45a209 | 2087 | .owner = THIS_MODULE, |
6f8ab4ac | 2088 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2089 | }, |
2090 | .probe = soc_probe, | |
2091 | .remove = soc_remove, | |
db2a4165 FM |
2092 | }; |
2093 | ||
2094 | /* create a new pcm */ | |
f0fba2ad LG |
2095 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
2096 | { | |
2097 | struct snd_soc_codec *codec = rtd->codec; | |
2098 | struct snd_soc_platform *platform = rtd->platform; | |
2099 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2100 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
2101 | struct snd_pcm *pcm; |
2102 | char new_name[64]; | |
2103 | int ret = 0, playback = 0, capture = 0; | |
2104 | ||
db2a4165 | 2105 | /* check client and interface hw capabilities */ |
40ca1142 | 2106 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 2107 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 2108 | |
f0fba2ad | 2109 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 2110 | playback = 1; |
f0fba2ad | 2111 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
2112 | capture = 1; |
2113 | ||
f0fba2ad LG |
2114 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
2115 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
2116 | num, playback, capture, &pcm); | |
db2a4165 | 2117 | if (ret < 0) { |
f0fba2ad | 2118 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
2119 | return ret; |
2120 | } | |
2121 | ||
f0fba2ad | 2122 | rtd->pcm = pcm; |
db2a4165 | 2123 | pcm->private_data = rtd; |
8842c72a MB |
2124 | if (platform->driver->ops) { |
2125 | soc_pcm_ops.mmap = platform->driver->ops->mmap; | |
2126 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2127 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2128 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2129 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2130 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2131 | soc_pcm_ops.page = platform->driver->ops->page; | |
2132 | } | |
db2a4165 FM |
2133 | |
2134 | if (playback) | |
2135 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2136 | ||
2137 | if (capture) | |
2138 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2139 | ||
8842c72a MB |
2140 | if (platform->driver->pcm_new) { |
2141 | ret = platform->driver->pcm_new(rtd->card->snd_card, | |
2142 | codec_dai, pcm); | |
2143 | if (ret < 0) { | |
2144 | pr_err("asoc: platform pcm constructor failed\n"); | |
2145 | return ret; | |
2146 | } | |
db2a4165 FM |
2147 | } |
2148 | ||
f0fba2ad | 2149 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2150 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2151 | cpu_dai->name); | |
2152 | return ret; | |
2153 | } | |
2154 | ||
096e49d5 MB |
2155 | /** |
2156 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2157 | * | |
2158 | * @codec: CODEC to query. | |
2159 | * @reg: Register to query. | |
2160 | * | |
2161 | * Boolean function indiciating if a CODEC register is volatile. | |
2162 | */ | |
181e055e MB |
2163 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2164 | unsigned int reg) | |
096e49d5 | 2165 | { |
1500b7b5 DP |
2166 | if (codec->volatile_register) |
2167 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2168 | else |
2169 | return 0; | |
2170 | } | |
2171 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2172 | ||
239c9706 DP |
2173 | /** |
2174 | * snd_soc_codec_readable_register: Report if a register is readable. | |
2175 | * | |
2176 | * @codec: CODEC to query. | |
2177 | * @reg: Register to query. | |
2178 | * | |
2179 | * Boolean function indicating if a CODEC register is readable. | |
2180 | */ | |
2181 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
2182 | unsigned int reg) | |
2183 | { | |
2184 | if (codec->readable_register) | |
2185 | return codec->readable_register(codec, reg); | |
2186 | else | |
2187 | return 0; | |
2188 | } | |
2189 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
2190 | ||
2191 | /** | |
2192 | * snd_soc_codec_writable_register: Report if a register is writable. | |
2193 | * | |
2194 | * @codec: CODEC to query. | |
2195 | * @reg: Register to query. | |
2196 | * | |
2197 | * Boolean function indicating if a CODEC register is writable. | |
2198 | */ | |
2199 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
2200 | unsigned int reg) | |
2201 | { | |
2202 | if (codec->writable_register) | |
2203 | return codec->writable_register(codec, reg); | |
2204 | else | |
2205 | return 0; | |
2206 | } | |
2207 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
2208 | ||
db2a4165 FM |
2209 | /** |
2210 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2211 | * @codec: audio codec | |
2212 | * @ops: AC97 bus operations | |
2213 | * @num: AC97 codec number | |
2214 | * | |
2215 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2216 | */ | |
2217 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2218 | struct snd_ac97_bus_ops *ops, int num) | |
2219 | { | |
2220 | mutex_lock(&codec->mutex); | |
2221 | ||
2222 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2223 | if (codec->ac97 == NULL) { | |
2224 | mutex_unlock(&codec->mutex); | |
2225 | return -ENOMEM; | |
2226 | } | |
2227 | ||
2228 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2229 | if (codec->ac97->bus == NULL) { | |
2230 | kfree(codec->ac97); | |
2231 | codec->ac97 = NULL; | |
2232 | mutex_unlock(&codec->mutex); | |
2233 | return -ENOMEM; | |
2234 | } | |
2235 | ||
2236 | codec->ac97->bus->ops = ops; | |
2237 | codec->ac97->num = num; | |
0562f788 MW |
2238 | |
2239 | /* | |
2240 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2241 | * device will be registered with the device subsystem later on. | |
2242 | */ | |
2243 | codec->ac97_created = 1; | |
2244 | ||
db2a4165 FM |
2245 | mutex_unlock(&codec->mutex); |
2246 | return 0; | |
2247 | } | |
2248 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2249 | ||
2250 | /** | |
2251 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2252 | * @codec: audio codec | |
2253 | * | |
2254 | * Frees AC97 codec device resources. | |
2255 | */ | |
2256 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2257 | { | |
2258 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2259 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2260 | soc_unregister_ac97_dai_link(codec); | |
2261 | #endif | |
db2a4165 FM |
2262 | kfree(codec->ac97->bus); |
2263 | kfree(codec->ac97); | |
2264 | codec->ac97 = NULL; | |
0562f788 | 2265 | codec->ac97_created = 0; |
db2a4165 FM |
2266 | mutex_unlock(&codec->mutex); |
2267 | } | |
2268 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2269 | ||
c3753707 MB |
2270 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2271 | { | |
2272 | unsigned int ret; | |
2273 | ||
c3acec26 | 2274 | ret = codec->read(codec, reg); |
c3753707 | 2275 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2276 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2277 | |
2278 | return ret; | |
2279 | } | |
2280 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2281 | ||
2282 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2283 | unsigned int reg, unsigned int val) | |
2284 | { | |
2285 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2286 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2287 | return codec->write(codec, reg, val); |
c3753707 MB |
2288 | } |
2289 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2290 | ||
5fb609d4 DP |
2291 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
2292 | unsigned int reg, const void *data, size_t len) | |
2293 | { | |
2294 | return codec->bulk_write_raw(codec, reg, data, len); | |
2295 | } | |
2296 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
2297 | ||
db2a4165 FM |
2298 | /** |
2299 | * snd_soc_update_bits - update codec register bits | |
2300 | * @codec: audio codec | |
2301 | * @reg: codec register | |
2302 | * @mask: register mask | |
2303 | * @value: new value | |
2304 | * | |
2305 | * Writes new register value. | |
2306 | * | |
180c329d | 2307 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2308 | */ |
2309 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2310 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2311 | { |
2312 | int change; | |
46f5822f | 2313 | unsigned int old, new; |
180c329d TT |
2314 | int ret; |
2315 | ||
2316 | ret = snd_soc_read(codec, reg); | |
2317 | if (ret < 0) | |
2318 | return ret; | |
db2a4165 | 2319 | |
180c329d | 2320 | old = ret; |
db2a4165 FM |
2321 | new = (old & ~mask) | value; |
2322 | change = old != new; | |
180c329d TT |
2323 | if (change) { |
2324 | ret = snd_soc_write(codec, reg, new); | |
2325 | if (ret < 0) | |
2326 | return ret; | |
2327 | } | |
db2a4165 | 2328 | |
db2a4165 FM |
2329 | return change; |
2330 | } | |
2331 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2332 | ||
6c508c62 EN |
2333 | /** |
2334 | * snd_soc_update_bits_locked - update codec register bits | |
2335 | * @codec: audio codec | |
2336 | * @reg: codec register | |
2337 | * @mask: register mask | |
2338 | * @value: new value | |
2339 | * | |
2340 | * Writes new register value, and takes the codec mutex. | |
2341 | * | |
2342 | * Returns 1 for change else 0. | |
2343 | */ | |
dd1b3d53 MB |
2344 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2345 | unsigned short reg, unsigned int mask, | |
2346 | unsigned int value) | |
6c508c62 EN |
2347 | { |
2348 | int change; | |
2349 | ||
2350 | mutex_lock(&codec->mutex); | |
2351 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2352 | mutex_unlock(&codec->mutex); | |
2353 | ||
2354 | return change; | |
2355 | } | |
dd1b3d53 | 2356 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2357 | |
db2a4165 FM |
2358 | /** |
2359 | * snd_soc_test_bits - test register for change | |
2360 | * @codec: audio codec | |
2361 | * @reg: codec register | |
2362 | * @mask: register mask | |
2363 | * @value: new value | |
2364 | * | |
2365 | * Tests a register with a new value and checks if the new value is | |
2366 | * different from the old value. | |
2367 | * | |
2368 | * Returns 1 for change else 0. | |
2369 | */ | |
2370 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2371 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2372 | { |
2373 | int change; | |
46f5822f | 2374 | unsigned int old, new; |
db2a4165 | 2375 | |
db2a4165 FM |
2376 | old = snd_soc_read(codec, reg); |
2377 | new = (old & ~mask) | value; | |
2378 | change = old != new; | |
db2a4165 FM |
2379 | |
2380 | return change; | |
2381 | } | |
2382 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2383 | ||
db2a4165 FM |
2384 | /** |
2385 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2386 | * @substream: the pcm substream | |
2387 | * @hw: the hardware parameters | |
2388 | * | |
2389 | * Sets the substream runtime hardware parameters. | |
2390 | */ | |
2391 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2392 | const struct snd_pcm_hardware *hw) | |
2393 | { | |
2394 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2395 | runtime->hw.info = hw->info; | |
2396 | runtime->hw.formats = hw->formats; | |
2397 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2398 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2399 | runtime->hw.periods_min = hw->periods_min; | |
2400 | runtime->hw.periods_max = hw->periods_max; | |
2401 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2402 | runtime->hw.fifo_size = hw->fifo_size; | |
2403 | return 0; | |
2404 | } | |
2405 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2406 | ||
2407 | /** | |
2408 | * snd_soc_cnew - create new control | |
2409 | * @_template: control template | |
2410 | * @data: control private data | |
ac11a2b3 | 2411 | * @long_name: control long name |
efb7ac3f | 2412 | * @prefix: control name prefix |
db2a4165 FM |
2413 | * |
2414 | * Create a new mixer control from a template control. | |
2415 | * | |
2416 | * Returns 0 for success, else error. | |
2417 | */ | |
2418 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
2419 | void *data, char *long_name, |
2420 | const char *prefix) | |
db2a4165 FM |
2421 | { |
2422 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2423 | struct snd_kcontrol *kcontrol; |
2424 | char *name = NULL; | |
2425 | int name_len; | |
db2a4165 FM |
2426 | |
2427 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2428 | template.index = 0; |
2429 | ||
efb7ac3f MB |
2430 | if (!long_name) |
2431 | long_name = template.name; | |
2432 | ||
2433 | if (prefix) { | |
2434 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
2435 | name = kmalloc(name_len, GFP_ATOMIC); | |
2436 | if (!name) | |
2437 | return NULL; | |
2438 | ||
2439 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2440 | ||
2441 | template.name = name; | |
2442 | } else { | |
2443 | template.name = long_name; | |
2444 | } | |
2445 | ||
2446 | kcontrol = snd_ctl_new1(&template, data); | |
2447 | ||
2448 | kfree(name); | |
2449 | ||
2450 | return kcontrol; | |
db2a4165 FM |
2451 | } |
2452 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2453 | ||
3e8e1952 IM |
2454 | /** |
2455 | * snd_soc_add_controls - add an array of controls to a codec. | |
2456 | * Convienience function to add a list of controls. Many codecs were | |
2457 | * duplicating this code. | |
2458 | * | |
2459 | * @codec: codec to add controls to | |
2460 | * @controls: array of controls to add | |
2461 | * @num_controls: number of elements in the array | |
2462 | * | |
2463 | * Return 0 for success, else error. | |
2464 | */ | |
2465 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2466 | const struct snd_kcontrol_new *controls, int num_controls) | |
2467 | { | |
f0fba2ad | 2468 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2469 | int err, i; |
2470 | ||
2471 | for (i = 0; i < num_controls; i++) { | |
2472 | const struct snd_kcontrol_new *control = &controls[i]; | |
efb7ac3f MB |
2473 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, |
2474 | control->name, | |
2475 | codec->name_prefix)); | |
3e8e1952 | 2476 | if (err < 0) { |
082100dc | 2477 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
efb7ac3f | 2478 | codec->name, control->name, err); |
3e8e1952 IM |
2479 | return err; |
2480 | } | |
2481 | } | |
2482 | ||
2483 | return 0; | |
2484 | } | |
2485 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2486 | ||
db2a4165 FM |
2487 | /** |
2488 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2489 | * @kcontrol: mixer control | |
2490 | * @uinfo: control element information | |
2491 | * | |
2492 | * Callback to provide information about a double enumerated | |
2493 | * mixer control. | |
2494 | * | |
2495 | * Returns 0 for success. | |
2496 | */ | |
2497 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2498 | struct snd_ctl_elem_info *uinfo) | |
2499 | { | |
2500 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2501 | ||
2502 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2503 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2504 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2505 | |
f8ba0b7b JS |
2506 | if (uinfo->value.enumerated.item > e->max - 1) |
2507 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2508 | strcpy(uinfo->value.enumerated.name, |
2509 | e->texts[uinfo->value.enumerated.item]); | |
2510 | return 0; | |
2511 | } | |
2512 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2513 | ||
2514 | /** | |
2515 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2516 | * @kcontrol: mixer control | |
ac11a2b3 | 2517 | * @ucontrol: control element information |
db2a4165 FM |
2518 | * |
2519 | * Callback to get the value of a double enumerated mixer. | |
2520 | * | |
2521 | * Returns 0 for success. | |
2522 | */ | |
2523 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2524 | struct snd_ctl_elem_value *ucontrol) | |
2525 | { | |
2526 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2527 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2528 | unsigned int val, bitmask; |
db2a4165 | 2529 | |
f8ba0b7b | 2530 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2531 | ; |
2532 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2533 | ucontrol->value.enumerated.item[0] |
2534 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2535 | if (e->shift_l != e->shift_r) |
2536 | ucontrol->value.enumerated.item[1] = | |
2537 | (val >> e->shift_r) & (bitmask - 1); | |
2538 | ||
2539 | return 0; | |
2540 | } | |
2541 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2542 | ||
2543 | /** | |
2544 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2545 | * @kcontrol: mixer control | |
ac11a2b3 | 2546 | * @ucontrol: control element information |
db2a4165 FM |
2547 | * |
2548 | * Callback to set the value of a double enumerated mixer. | |
2549 | * | |
2550 | * Returns 0 for success. | |
2551 | */ | |
2552 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2553 | struct snd_ctl_elem_value *ucontrol) | |
2554 | { | |
2555 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2556 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2557 | unsigned int val; |
2558 | unsigned int mask, bitmask; | |
db2a4165 | 2559 | |
f8ba0b7b | 2560 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2561 | ; |
f8ba0b7b | 2562 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2563 | return -EINVAL; |
2564 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2565 | mask = (bitmask - 1) << e->shift_l; | |
2566 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2567 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2568 | return -EINVAL; |
2569 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2570 | mask |= (bitmask - 1) << e->shift_r; | |
2571 | } | |
2572 | ||
6c508c62 | 2573 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2574 | } |
2575 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2576 | ||
2e72f8e3 PU |
2577 | /** |
2578 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2579 | * @kcontrol: mixer control | |
2580 | * @ucontrol: control element information | |
2581 | * | |
2582 | * Callback to get the value of a double semi enumerated mixer. | |
2583 | * | |
2584 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2585 | * used for handling bitfield coded enumeration for example. | |
2586 | * | |
2587 | * Returns 0 for success. | |
2588 | */ | |
2589 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2590 | struct snd_ctl_elem_value *ucontrol) | |
2591 | { | |
2592 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2593 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2594 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2595 | |
2596 | reg_val = snd_soc_read(codec, e->reg); | |
2597 | val = (reg_val >> e->shift_l) & e->mask; | |
2598 | for (mux = 0; mux < e->max; mux++) { | |
2599 | if (val == e->values[mux]) | |
2600 | break; | |
2601 | } | |
2602 | ucontrol->value.enumerated.item[0] = mux; | |
2603 | if (e->shift_l != e->shift_r) { | |
2604 | val = (reg_val >> e->shift_r) & e->mask; | |
2605 | for (mux = 0; mux < e->max; mux++) { | |
2606 | if (val == e->values[mux]) | |
2607 | break; | |
2608 | } | |
2609 | ucontrol->value.enumerated.item[1] = mux; | |
2610 | } | |
2611 | ||
2612 | return 0; | |
2613 | } | |
2614 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2615 | ||
2616 | /** | |
2617 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2618 | * @kcontrol: mixer control | |
2619 | * @ucontrol: control element information | |
2620 | * | |
2621 | * Callback to set the value of a double semi enumerated mixer. | |
2622 | * | |
2623 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2624 | * used for handling bitfield coded enumeration for example. | |
2625 | * | |
2626 | * Returns 0 for success. | |
2627 | */ | |
2628 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2629 | struct snd_ctl_elem_value *ucontrol) | |
2630 | { | |
2631 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2632 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2633 | unsigned int val; |
2634 | unsigned int mask; | |
2e72f8e3 PU |
2635 | |
2636 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2637 | return -EINVAL; | |
2638 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2639 | mask = e->mask << e->shift_l; | |
2640 | if (e->shift_l != e->shift_r) { | |
2641 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2642 | return -EINVAL; | |
2643 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2644 | mask |= e->mask << e->shift_r; | |
2645 | } | |
2646 | ||
6c508c62 | 2647 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2648 | } |
2649 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2650 | ||
db2a4165 FM |
2651 | /** |
2652 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2653 | * @kcontrol: mixer control | |
2654 | * @uinfo: control element information | |
2655 | * | |
2656 | * Callback to provide information about an external enumerated | |
2657 | * single mixer. | |
2658 | * | |
2659 | * Returns 0 for success. | |
2660 | */ | |
2661 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2662 | struct snd_ctl_elem_info *uinfo) | |
2663 | { | |
2664 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2665 | ||
2666 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2667 | uinfo->count = 1; | |
f8ba0b7b | 2668 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2669 | |
f8ba0b7b JS |
2670 | if (uinfo->value.enumerated.item > e->max - 1) |
2671 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2672 | strcpy(uinfo->value.enumerated.name, |
2673 | e->texts[uinfo->value.enumerated.item]); | |
2674 | return 0; | |
2675 | } | |
2676 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2677 | ||
2678 | /** | |
2679 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2680 | * @kcontrol: mixer control | |
2681 | * @uinfo: control element information | |
2682 | * | |
2683 | * Callback to provide information about a single external mixer control. | |
2684 | * | |
2685 | * Returns 0 for success. | |
2686 | */ | |
2687 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2688 | struct snd_ctl_elem_info *uinfo) | |
2689 | { | |
a7a4ac86 PZ |
2690 | int max = kcontrol->private_value; |
2691 | ||
fd5dfad9 | 2692 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2693 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2694 | else | |
2695 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2696 | |
db2a4165 FM |
2697 | uinfo->count = 1; |
2698 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2699 | uinfo->value.integer.max = max; |
db2a4165 FM |
2700 | return 0; |
2701 | } | |
2702 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2703 | ||
db2a4165 FM |
2704 | /** |
2705 | * snd_soc_info_volsw - single mixer info callback | |
2706 | * @kcontrol: mixer control | |
2707 | * @uinfo: control element information | |
2708 | * | |
2709 | * Callback to provide information about a single mixer control. | |
2710 | * | |
2711 | * Returns 0 for success. | |
2712 | */ | |
2713 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2714 | struct snd_ctl_elem_info *uinfo) | |
2715 | { | |
4eaa9819 JS |
2716 | struct soc_mixer_control *mc = |
2717 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2718 | int platform_max; |
762b8df7 | 2719 | unsigned int shift = mc->shift; |
815ecf8d | 2720 | unsigned int rshift = mc->rshift; |
db2a4165 | 2721 | |
d11bb4a9 PU |
2722 | if (!mc->platform_max) |
2723 | mc->platform_max = mc->max; | |
2724 | platform_max = mc->platform_max; | |
2725 | ||
2726 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2727 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2728 | else | |
2729 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2730 | ||
db2a4165 FM |
2731 | uinfo->count = shift == rshift ? 1 : 2; |
2732 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2733 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2734 | return 0; |
2735 | } | |
2736 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2737 | ||
2738 | /** | |
2739 | * snd_soc_get_volsw - single mixer get callback | |
2740 | * @kcontrol: mixer control | |
ac11a2b3 | 2741 | * @ucontrol: control element information |
db2a4165 FM |
2742 | * |
2743 | * Callback to get the value of a single mixer control. | |
2744 | * | |
2745 | * Returns 0 for success. | |
2746 | */ | |
2747 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2748 | struct snd_ctl_elem_value *ucontrol) | |
2749 | { | |
4eaa9819 JS |
2750 | struct soc_mixer_control *mc = |
2751 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2752 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2753 | unsigned int reg = mc->reg; |
2754 | unsigned int shift = mc->shift; | |
2755 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2756 | int max = mc->max; |
815ecf8d JS |
2757 | unsigned int mask = (1 << fls(max)) - 1; |
2758 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2759 | |
2760 | ucontrol->value.integer.value[0] = | |
2761 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2762 | if (shift != rshift) | |
2763 | ucontrol->value.integer.value[1] = | |
2764 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2765 | if (invert) { | |
2766 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2767 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2768 | if (shift != rshift) |
2769 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2770 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2771 | } |
2772 | ||
2773 | return 0; | |
2774 | } | |
2775 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2776 | ||
2777 | /** | |
2778 | * snd_soc_put_volsw - single mixer put callback | |
2779 | * @kcontrol: mixer control | |
ac11a2b3 | 2780 | * @ucontrol: control element information |
db2a4165 FM |
2781 | * |
2782 | * Callback to set the value of a single mixer control. | |
2783 | * | |
2784 | * Returns 0 for success. | |
2785 | */ | |
2786 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2787 | struct snd_ctl_elem_value *ucontrol) | |
2788 | { | |
4eaa9819 JS |
2789 | struct soc_mixer_control *mc = |
2790 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2791 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2792 | unsigned int reg = mc->reg; |
2793 | unsigned int shift = mc->shift; | |
2794 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2795 | int max = mc->max; |
815ecf8d JS |
2796 | unsigned int mask = (1 << fls(max)) - 1; |
2797 | unsigned int invert = mc->invert; | |
46f5822f | 2798 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2799 | |
2800 | val = (ucontrol->value.integer.value[0] & mask); | |
2801 | if (invert) | |
a7a4ac86 | 2802 | val = max - val; |
db2a4165 FM |
2803 | val_mask = mask << shift; |
2804 | val = val << shift; | |
2805 | if (shift != rshift) { | |
2806 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2807 | if (invert) | |
a7a4ac86 | 2808 | val2 = max - val2; |
db2a4165 FM |
2809 | val_mask |= mask << rshift; |
2810 | val |= val2 << rshift; | |
2811 | } | |
6c508c62 | 2812 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2813 | } |
2814 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2815 | ||
2816 | /** | |
2817 | * snd_soc_info_volsw_2r - double mixer info callback | |
2818 | * @kcontrol: mixer control | |
2819 | * @uinfo: control element information | |
2820 | * | |
2821 | * Callback to provide information about a double mixer control that | |
2822 | * spans 2 codec registers. | |
2823 | * | |
2824 | * Returns 0 for success. | |
2825 | */ | |
2826 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2827 | struct snd_ctl_elem_info *uinfo) | |
2828 | { | |
4eaa9819 JS |
2829 | struct soc_mixer_control *mc = |
2830 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2831 | int platform_max; |
a7a4ac86 | 2832 | |
d11bb4a9 PU |
2833 | if (!mc->platform_max) |
2834 | mc->platform_max = mc->max; | |
2835 | platform_max = mc->platform_max; | |
2836 | ||
2837 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2838 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2839 | else | |
2840 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2841 | |
db2a4165 FM |
2842 | uinfo->count = 2; |
2843 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2844 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2845 | return 0; |
2846 | } | |
2847 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2848 | ||
2849 | /** | |
2850 | * snd_soc_get_volsw_2r - double mixer get callback | |
2851 | * @kcontrol: mixer control | |
ac11a2b3 | 2852 | * @ucontrol: control element information |
db2a4165 FM |
2853 | * |
2854 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2855 | * | |
2856 | * Returns 0 for success. | |
2857 | */ | |
2858 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2859 | struct snd_ctl_elem_value *ucontrol) | |
2860 | { | |
4eaa9819 JS |
2861 | struct soc_mixer_control *mc = |
2862 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2863 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2864 | unsigned int reg = mc->reg; |
2865 | unsigned int reg2 = mc->rreg; | |
2866 | unsigned int shift = mc->shift; | |
4eaa9819 | 2867 | int max = mc->max; |
46f5822f | 2868 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2869 | unsigned int invert = mc->invert; |
db2a4165 FM |
2870 | |
2871 | ucontrol->value.integer.value[0] = | |
2872 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2873 | ucontrol->value.integer.value[1] = | |
2874 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2875 | if (invert) { | |
2876 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2877 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2878 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2879 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2880 | } |
2881 | ||
2882 | return 0; | |
2883 | } | |
2884 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2885 | ||
2886 | /** | |
2887 | * snd_soc_put_volsw_2r - double mixer set callback | |
2888 | * @kcontrol: mixer control | |
ac11a2b3 | 2889 | * @ucontrol: control element information |
db2a4165 FM |
2890 | * |
2891 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2892 | * | |
2893 | * Returns 0 for success. | |
2894 | */ | |
2895 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2896 | struct snd_ctl_elem_value *ucontrol) | |
2897 | { | |
4eaa9819 JS |
2898 | struct soc_mixer_control *mc = |
2899 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2900 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2901 | unsigned int reg = mc->reg; |
2902 | unsigned int reg2 = mc->rreg; | |
2903 | unsigned int shift = mc->shift; | |
4eaa9819 | 2904 | int max = mc->max; |
815ecf8d JS |
2905 | unsigned int mask = (1 << fls(max)) - 1; |
2906 | unsigned int invert = mc->invert; | |
db2a4165 | 2907 | int err; |
46f5822f | 2908 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2909 | |
2910 | val_mask = mask << shift; | |
2911 | val = (ucontrol->value.integer.value[0] & mask); | |
2912 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2913 | ||
2914 | if (invert) { | |
a7a4ac86 PZ |
2915 | val = max - val; |
2916 | val2 = max - val2; | |
db2a4165 FM |
2917 | } |
2918 | ||
2919 | val = val << shift; | |
2920 | val2 = val2 << shift; | |
2921 | ||
6c508c62 | 2922 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2923 | if (err < 0) |
db2a4165 FM |
2924 | return err; |
2925 | ||
6c508c62 | 2926 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2927 | return err; |
2928 | } | |
2929 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2930 | ||
e13ac2e9 MB |
2931 | /** |
2932 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2933 | * @kcontrol: mixer control | |
2934 | * @uinfo: control element information | |
2935 | * | |
2936 | * Callback to provide information about a signed mixer control. | |
2937 | * | |
2938 | * Returns 0 for success. | |
2939 | */ | |
2940 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2941 | struct snd_ctl_elem_info *uinfo) | |
2942 | { | |
4eaa9819 JS |
2943 | struct soc_mixer_control *mc = |
2944 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2945 | int platform_max; |
4eaa9819 | 2946 | int min = mc->min; |
e13ac2e9 | 2947 | |
d11bb4a9 PU |
2948 | if (!mc->platform_max) |
2949 | mc->platform_max = mc->max; | |
2950 | platform_max = mc->platform_max; | |
2951 | ||
e13ac2e9 MB |
2952 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2953 | uinfo->count = 2; | |
2954 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2955 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2956 | return 0; |
2957 | } | |
2958 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2959 | ||
2960 | /** | |
2961 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2962 | * @kcontrol: mixer control | |
ac11a2b3 | 2963 | * @ucontrol: control element information |
e13ac2e9 MB |
2964 | * |
2965 | * Callback to get the value of a signed mixer control. | |
2966 | * | |
2967 | * Returns 0 for success. | |
2968 | */ | |
2969 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2970 | struct snd_ctl_elem_value *ucontrol) | |
2971 | { | |
4eaa9819 JS |
2972 | struct soc_mixer_control *mc = |
2973 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2974 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2975 | unsigned int reg = mc->reg; |
4eaa9819 | 2976 | int min = mc->min; |
e13ac2e9 MB |
2977 | int val = snd_soc_read(codec, reg); |
2978 | ||
2979 | ucontrol->value.integer.value[0] = | |
2980 | ((signed char)(val & 0xff))-min; | |
2981 | ucontrol->value.integer.value[1] = | |
2982 | ((signed char)((val >> 8) & 0xff))-min; | |
2983 | return 0; | |
2984 | } | |
2985 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2986 | ||
2987 | /** | |
2988 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2989 | * @kcontrol: mixer control | |
ac11a2b3 | 2990 | * @ucontrol: control element information |
e13ac2e9 MB |
2991 | * |
2992 | * Callback to set the value of a signed mixer control. | |
2993 | * | |
2994 | * Returns 0 for success. | |
2995 | */ | |
2996 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2997 | struct snd_ctl_elem_value *ucontrol) | |
2998 | { | |
4eaa9819 JS |
2999 | struct soc_mixer_control *mc = |
3000 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 3001 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 3002 | unsigned int reg = mc->reg; |
4eaa9819 | 3003 | int min = mc->min; |
46f5822f | 3004 | unsigned int val; |
e13ac2e9 MB |
3005 | |
3006 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
3007 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
3008 | ||
6c508c62 | 3009 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
3010 | } |
3011 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
3012 | ||
637d3847 PU |
3013 | /** |
3014 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
3015 | * | |
3016 | * @codec: where to look for the control | |
3017 | * @name: Name of the control | |
3018 | * @max: new maximum limit | |
3019 | * | |
3020 | * Return 0 for success, else error. | |
3021 | */ | |
3022 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
3023 | const char *name, int max) | |
3024 | { | |
f0fba2ad | 3025 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
3026 | struct snd_kcontrol *kctl; |
3027 | struct soc_mixer_control *mc; | |
3028 | int found = 0; | |
3029 | int ret = -EINVAL; | |
3030 | ||
3031 | /* Sanity check for name and max */ | |
3032 | if (unlikely(!name || max <= 0)) | |
3033 | return -EINVAL; | |
3034 | ||
3035 | list_for_each_entry(kctl, &card->controls, list) { | |
3036 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
3037 | found = 1; | |
3038 | break; | |
3039 | } | |
3040 | } | |
3041 | if (found) { | |
3042 | mc = (struct soc_mixer_control *)kctl->private_value; | |
3043 | if (max <= mc->max) { | |
d11bb4a9 | 3044 | mc->platform_max = max; |
637d3847 PU |
3045 | ret = 0; |
3046 | } | |
3047 | } | |
3048 | return ret; | |
3049 | } | |
3050 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
3051 | ||
b6f4bb38 | 3052 | /** |
3053 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
3054 | * mixer info callback | |
3055 | * @kcontrol: mixer control | |
3056 | * @uinfo: control element information | |
3057 | * | |
3058 | * Returns 0 for success. | |
3059 | */ | |
3060 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3061 | struct snd_ctl_elem_info *uinfo) | |
3062 | { | |
3063 | struct soc_mixer_control *mc = | |
3064 | (struct soc_mixer_control *)kcontrol->private_value; | |
3065 | int max = mc->max; | |
3066 | int min = mc->min; | |
3067 | ||
3068 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
3069 | uinfo->count = 2; | |
3070 | uinfo->value.integer.min = 0; | |
3071 | uinfo->value.integer.max = max-min; | |
3072 | ||
3073 | return 0; | |
3074 | } | |
3075 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
3076 | ||
3077 | /** | |
3078 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
3079 | * mixer get callback | |
3080 | * @kcontrol: mixer control | |
3081 | * @uinfo: control element information | |
3082 | * | |
3083 | * Returns 0 for success. | |
3084 | */ | |
3085 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3086 | struct snd_ctl_elem_value *ucontrol) | |
3087 | { | |
3088 | struct soc_mixer_control *mc = | |
3089 | (struct soc_mixer_control *)kcontrol->private_value; | |
3090 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3091 | unsigned int mask = (1<<mc->shift)-1; | |
3092 | int min = mc->min; | |
3093 | int val = snd_soc_read(codec, mc->reg) & mask; | |
3094 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
3095 | ||
20630c7f SL |
3096 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
3097 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 3098 | return 0; |
3099 | } | |
3100 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
3101 | ||
3102 | /** | |
3103 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
3104 | * mixer put callback | |
3105 | * @kcontrol: mixer control | |
3106 | * @uinfo: control element information | |
3107 | * | |
3108 | * Returns 0 for success. | |
3109 | */ | |
3110 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3111 | struct snd_ctl_elem_value *ucontrol) | |
3112 | { | |
3113 | struct soc_mixer_control *mc = | |
3114 | (struct soc_mixer_control *)kcontrol->private_value; | |
3115 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3116 | unsigned int mask = (1<<mc->shift)-1; | |
3117 | int min = mc->min; | |
3118 | int ret; | |
3119 | unsigned int val, valr, oval, ovalr; | |
3120 | ||
3121 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
3122 | val &= mask; | |
3123 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
3124 | valr &= mask; | |
3125 | ||
3126 | oval = snd_soc_read(codec, mc->reg) & mask; | |
3127 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
3128 | ||
3129 | ret = 0; | |
3130 | if (oval != val) { | |
3131 | ret = snd_soc_write(codec, mc->reg, val); | |
3132 | if (ret < 0) | |
f1df5aec | 3133 | return ret; |
b6f4bb38 | 3134 | } |
3135 | if (ovalr != valr) { | |
3136 | ret = snd_soc_write(codec, mc->rreg, valr); | |
3137 | if (ret < 0) | |
f1df5aec | 3138 | return ret; |
b6f4bb38 | 3139 | } |
3140 | ||
3141 | return 0; | |
3142 | } | |
3143 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
3144 | ||
8c6529db LG |
3145 | /** |
3146 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3147 | * @dai: DAI | |
3148 | * @clk_id: DAI specific clock ID | |
3149 | * @freq: new clock frequency in Hz | |
3150 | * @dir: new clock direction - input/output. | |
3151 | * | |
3152 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3153 | */ | |
3154 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3155 | unsigned int freq, int dir) | |
3156 | { | |
f0fba2ad LG |
3157 | if (dai->driver && dai->driver->ops->set_sysclk) |
3158 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a MB |
3159 | else if (dai->codec && dai->codec->driver->set_sysclk) |
3160 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, | |
3161 | freq, dir); | |
8c6529db LG |
3162 | else |
3163 | return -EINVAL; | |
3164 | } | |
3165 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3166 | ||
ec4ee52a MB |
3167 | /** |
3168 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
3169 | * @codec: CODEC | |
3170 | * @clk_id: DAI specific clock ID | |
3171 | * @freq: new clock frequency in Hz | |
3172 | * @dir: new clock direction - input/output. | |
3173 | * | |
3174 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
3175 | */ | |
3176 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
3177 | unsigned int freq, int dir) | |
3178 | { | |
3179 | if (codec->driver->set_sysclk) | |
3180 | return codec->driver->set_sysclk(codec, clk_id, freq, dir); | |
3181 | else | |
3182 | return -EINVAL; | |
3183 | } | |
3184 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
3185 | ||
8c6529db LG |
3186 | /** |
3187 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3188 | * @dai: DAI | |
ac11a2b3 | 3189 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3190 | * @div: new clock divisor. |
3191 | * | |
3192 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3193 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3194 | * and frame clocks as low as possible to save system power. | |
3195 | */ | |
3196 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3197 | int div_id, int div) | |
3198 | { | |
f0fba2ad LG |
3199 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3200 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3201 | else |
3202 | return -EINVAL; | |
3203 | } | |
3204 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3205 | ||
3206 | /** | |
3207 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3208 | * @dai: DAI | |
3209 | * @pll_id: DAI specific PLL ID | |
85488037 | 3210 | * @source: DAI specific source for the PLL |
8c6529db LG |
3211 | * @freq_in: PLL input clock frequency in Hz |
3212 | * @freq_out: requested PLL output clock frequency in Hz | |
3213 | * | |
3214 | * Configures and enables PLL to generate output clock based on input clock. | |
3215 | */ | |
85488037 MB |
3216 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3217 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3218 | { |
f0fba2ad LG |
3219 | if (dai->driver && dai->driver->ops->set_pll) |
3220 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3221 | freq_in, freq_out); |
ec4ee52a MB |
3222 | else if (dai->codec && dai->codec->driver->set_pll) |
3223 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
3224 | freq_in, freq_out); | |
8c6529db LG |
3225 | else |
3226 | return -EINVAL; | |
3227 | } | |
3228 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3229 | ||
ec4ee52a MB |
3230 | /* |
3231 | * snd_soc_codec_set_pll - configure codec PLL. | |
3232 | * @codec: CODEC | |
3233 | * @pll_id: DAI specific PLL ID | |
3234 | * @source: DAI specific source for the PLL | |
3235 | * @freq_in: PLL input clock frequency in Hz | |
3236 | * @freq_out: requested PLL output clock frequency in Hz | |
3237 | * | |
3238 | * Configures and enables PLL to generate output clock based on input clock. | |
3239 | */ | |
3240 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
3241 | unsigned int freq_in, unsigned int freq_out) | |
3242 | { | |
3243 | if (codec->driver->set_pll) | |
3244 | return codec->driver->set_pll(codec, pll_id, source, | |
3245 | freq_in, freq_out); | |
3246 | else | |
3247 | return -EINVAL; | |
3248 | } | |
3249 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
3250 | ||
8c6529db LG |
3251 | /** |
3252 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3253 | * @dai: DAI | |
8c6529db LG |
3254 | * @fmt: SND_SOC_DAIFMT_ format value. |
3255 | * | |
3256 | * Configures the DAI hardware format and clocking. | |
3257 | */ | |
3258 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3259 | { | |
f0fba2ad LG |
3260 | if (dai->driver && dai->driver->ops->set_fmt) |
3261 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3262 | else |
3263 | return -EINVAL; | |
3264 | } | |
3265 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3266 | ||
3267 | /** | |
3268 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3269 | * @dai: DAI | |
a5479e38 DR |
3270 | * @tx_mask: bitmask representing active TX slots. |
3271 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3272 | * @slots: Number of slots in use. |
a5479e38 | 3273 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3274 | * |
3275 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3276 | * specific. | |
3277 | */ | |
3278 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3279 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3280 | { |
f0fba2ad LG |
3281 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3282 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3283 | slots, slot_width); |
8c6529db LG |
3284 | else |
3285 | return -EINVAL; | |
3286 | } | |
3287 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3288 | ||
472df3cb BS |
3289 | /** |
3290 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3291 | * @dai: DAI | |
3292 | * @tx_num: how many TX channels | |
3293 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3294 | * 0~num-1 uses | |
3295 | * @rx_num: how many RX channels | |
3296 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3297 | * 0~num-1 uses | |
3298 | * | |
3299 | * configure the relationship between channel number and TDM slot number. | |
3300 | */ | |
3301 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3302 | unsigned int tx_num, unsigned int *tx_slot, | |
3303 | unsigned int rx_num, unsigned int *rx_slot) | |
3304 | { | |
f0fba2ad LG |
3305 | if (dai->driver && dai->driver->ops->set_channel_map) |
3306 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3307 | rx_num, rx_slot); |
3308 | else | |
3309 | return -EINVAL; | |
3310 | } | |
3311 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3312 | ||
8c6529db LG |
3313 | /** |
3314 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3315 | * @dai: DAI | |
3316 | * @tristate: tristate enable | |
3317 | * | |
3318 | * Tristates the DAI so that others can use it. | |
3319 | */ | |
3320 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3321 | { | |
f0fba2ad LG |
3322 | if (dai->driver && dai->driver->ops->set_tristate) |
3323 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3324 | else |
3325 | return -EINVAL; | |
3326 | } | |
3327 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3328 | ||
3329 | /** | |
3330 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3331 | * @dai: DAI | |
3332 | * @mute: mute enable | |
3333 | * | |
3334 | * Mutes the DAI DAC. | |
3335 | */ | |
3336 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3337 | { | |
f0fba2ad LG |
3338 | if (dai->driver && dai->driver->ops->digital_mute) |
3339 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3340 | else |
3341 | return -EINVAL; | |
3342 | } | |
3343 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3344 | ||
c5af3a2e MB |
3345 | /** |
3346 | * snd_soc_register_card - Register a card with the ASoC core | |
3347 | * | |
ac11a2b3 | 3348 | * @card: Card to register |
c5af3a2e | 3349 | * |
c5af3a2e | 3350 | */ |
70a7ca34 | 3351 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3352 | { |
f0fba2ad LG |
3353 | int i; |
3354 | ||
c5af3a2e MB |
3355 | if (!card->name || !card->dev) |
3356 | return -EINVAL; | |
3357 | ||
111c6419 SW |
3358 | snd_soc_initialize_card_lists(card); |
3359 | ||
150dd2f8 VK |
3360 | soc_init_card_debugfs(card); |
3361 | ||
2eea392d JN |
3362 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3363 | (card->num_links + card->num_aux_devs), | |
3364 | GFP_KERNEL); | |
f0fba2ad LG |
3365 | if (card->rtd == NULL) |
3366 | return -ENOMEM; | |
2eea392d | 3367 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3368 | |
3369 | for (i = 0; i < card->num_links; i++) | |
3370 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3371 | ||
c5af3a2e MB |
3372 | INIT_LIST_HEAD(&card->list); |
3373 | card->instantiated = 0; | |
f0fba2ad | 3374 | mutex_init(&card->mutex); |
c5af3a2e MB |
3375 | |
3376 | mutex_lock(&client_mutex); | |
3377 | list_add(&card->list, &card_list); | |
435c5e25 | 3378 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3379 | mutex_unlock(&client_mutex); |
3380 | ||
3381 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3382 | ||
3383 | return 0; | |
3384 | } | |
70a7ca34 | 3385 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3386 | |
3387 | /** | |
3388 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3389 | * | |
ac11a2b3 | 3390 | * @card: Card to unregister |
c5af3a2e | 3391 | * |
c5af3a2e | 3392 | */ |
70a7ca34 | 3393 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3394 | { |
b0e26485 VK |
3395 | if (card->instantiated) |
3396 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3397 | mutex_lock(&client_mutex); |
3398 | list_del(&card->list); | |
3399 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3400 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3401 | ||
3402 | return 0; | |
3403 | } | |
70a7ca34 | 3404 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3405 | |
f0fba2ad LG |
3406 | /* |
3407 | * Simplify DAI link configuration by removing ".-1" from device names | |
3408 | * and sanitizing names. | |
3409 | */ | |
0b9a214a | 3410 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3411 | { |
3412 | char *found, name[NAME_SIZE]; | |
3413 | int id1, id2; | |
3414 | ||
3415 | if (dev_name(dev) == NULL) | |
3416 | return NULL; | |
3417 | ||
58818a77 | 3418 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3419 | |
3420 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3421 | found = strstr(name, dev->driver->name); | |
3422 | if (found) { | |
3423 | /* get ID */ | |
3424 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3425 | ||
3426 | /* discard ID from name if ID == -1 */ | |
3427 | if (*id == -1) | |
3428 | found[strlen(dev->driver->name)] = '\0'; | |
3429 | } | |
3430 | ||
3431 | } else { | |
3432 | /* I2C component devices are named "bus-addr" */ | |
3433 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3434 | char tmp[NAME_SIZE]; | |
3435 | ||
3436 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3437 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3438 | |
3439 | /* sanitize component name for DAI link creation */ | |
3440 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3441 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3442 | } else |
3443 | *id = 0; | |
3444 | } | |
3445 | ||
3446 | return kstrdup(name, GFP_KERNEL); | |
3447 | } | |
3448 | ||
3449 | /* | |
3450 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3451 | * any ".-1" and using the DAI name (instead of device name). | |
3452 | */ | |
3453 | static inline char *fmt_multiple_name(struct device *dev, | |
3454 | struct snd_soc_dai_driver *dai_drv) | |
3455 | { | |
3456 | if (dai_drv->name == NULL) { | |
3457 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3458 | dev_name(dev)); | |
3459 | return NULL; | |
3460 | } | |
3461 | ||
3462 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3463 | } | |
3464 | ||
9115171a MB |
3465 | /** |
3466 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3467 | * | |
ac11a2b3 | 3468 | * @dai: DAI to register |
9115171a | 3469 | */ |
f0fba2ad LG |
3470 | int snd_soc_register_dai(struct device *dev, |
3471 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3472 | { |
f0fba2ad LG |
3473 | struct snd_soc_dai *dai; |
3474 | ||
3475 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3476 | |
f0fba2ad LG |
3477 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3478 | if (dai == NULL) | |
a7393623 | 3479 | return -ENOMEM; |
9115171a | 3480 | |
f0fba2ad LG |
3481 | /* create DAI component name */ |
3482 | dai->name = fmt_single_name(dev, &dai->id); | |
3483 | if (dai->name == NULL) { | |
3484 | kfree(dai); | |
3485 | return -ENOMEM; | |
3486 | } | |
6335d055 | 3487 | |
f0fba2ad LG |
3488 | dai->dev = dev; |
3489 | dai->driver = dai_drv; | |
3490 | if (!dai->driver->ops) | |
3491 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3492 | |
3493 | mutex_lock(&client_mutex); | |
3494 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3495 | snd_soc_instantiate_cards(); |
9115171a MB |
3496 | mutex_unlock(&client_mutex); |
3497 | ||
3498 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3499 | ||
3500 | return 0; | |
3501 | } | |
3502 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3503 | ||
3504 | /** | |
3505 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3506 | * | |
ac11a2b3 | 3507 | * @dai: DAI to unregister |
9115171a | 3508 | */ |
f0fba2ad | 3509 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3510 | { |
f0fba2ad LG |
3511 | struct snd_soc_dai *dai; |
3512 | ||
3513 | list_for_each_entry(dai, &dai_list, list) { | |
3514 | if (dev == dai->dev) | |
3515 | goto found; | |
3516 | } | |
3517 | return; | |
3518 | ||
3519 | found: | |
9115171a MB |
3520 | mutex_lock(&client_mutex); |
3521 | list_del(&dai->list); | |
3522 | mutex_unlock(&client_mutex); | |
3523 | ||
3524 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3525 | kfree(dai->name); |
3526 | kfree(dai); | |
9115171a MB |
3527 | } |
3528 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3529 | ||
3530 | /** | |
3531 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3532 | * | |
ac11a2b3 MB |
3533 | * @dai: Array of DAIs to register |
3534 | * @count: Number of DAIs | |
9115171a | 3535 | */ |
f0fba2ad LG |
3536 | int snd_soc_register_dais(struct device *dev, |
3537 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3538 | { |
f0fba2ad LG |
3539 | struct snd_soc_dai *dai; |
3540 | int i, ret = 0; | |
3541 | ||
720ffa4c | 3542 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3543 | |
3544 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3545 | |
3546 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3547 | if (dai == NULL) { |
3548 | ret = -ENOMEM; | |
3549 | goto err; | |
3550 | } | |
f0fba2ad LG |
3551 | |
3552 | /* create DAI component name */ | |
3553 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3554 | if (dai->name == NULL) { | |
3555 | kfree(dai); | |
3556 | ret = -EINVAL; | |
9115171a | 3557 | goto err; |
f0fba2ad LG |
3558 | } |
3559 | ||
3560 | dai->dev = dev; | |
f0fba2ad | 3561 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3562 | if (dai->driver->id) |
3563 | dai->id = dai->driver->id; | |
3564 | else | |
3565 | dai->id = i; | |
f0fba2ad LG |
3566 | if (!dai->driver->ops) |
3567 | dai->driver->ops = &null_dai_ops; | |
3568 | ||
3569 | mutex_lock(&client_mutex); | |
3570 | list_add(&dai->list, &dai_list); | |
3571 | mutex_unlock(&client_mutex); | |
3572 | ||
3573 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3574 | } |
3575 | ||
1dcb4f38 | 3576 | mutex_lock(&client_mutex); |
f0fba2ad | 3577 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3578 | mutex_unlock(&client_mutex); |
9115171a MB |
3579 | return 0; |
3580 | ||
3581 | err: | |
3582 | for (i--; i >= 0; i--) | |
f0fba2ad | 3583 | snd_soc_unregister_dai(dev); |
9115171a MB |
3584 | |
3585 | return ret; | |
3586 | } | |
3587 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3588 | ||
3589 | /** | |
3590 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3591 | * | |
ac11a2b3 MB |
3592 | * @dai: Array of DAIs to unregister |
3593 | * @count: Number of DAIs | |
9115171a | 3594 | */ |
f0fba2ad | 3595 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3596 | { |
3597 | int i; | |
3598 | ||
3599 | for (i = 0; i < count; i++) | |
f0fba2ad | 3600 | snd_soc_unregister_dai(dev); |
9115171a MB |
3601 | } |
3602 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3603 | ||
12a48a8c MB |
3604 | /** |
3605 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3606 | * | |
ac11a2b3 | 3607 | * @platform: platform to register |
12a48a8c | 3608 | */ |
f0fba2ad LG |
3609 | int snd_soc_register_platform(struct device *dev, |
3610 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3611 | { |
f0fba2ad LG |
3612 | struct snd_soc_platform *platform; |
3613 | ||
3614 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3615 | ||
3616 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3617 | if (platform == NULL) | |
a7393623 | 3618 | return -ENOMEM; |
f0fba2ad LG |
3619 | |
3620 | /* create platform component name */ | |
3621 | platform->name = fmt_single_name(dev, &platform->id); | |
3622 | if (platform->name == NULL) { | |
3623 | kfree(platform); | |
3624 | return -ENOMEM; | |
3625 | } | |
12a48a8c | 3626 | |
f0fba2ad LG |
3627 | platform->dev = dev; |
3628 | platform->driver = platform_drv; | |
12a48a8c MB |
3629 | |
3630 | mutex_lock(&client_mutex); | |
3631 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3632 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3633 | mutex_unlock(&client_mutex); |
3634 | ||
3635 | pr_debug("Registered platform '%s'\n", platform->name); | |
3636 | ||
3637 | return 0; | |
3638 | } | |
3639 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3640 | ||
3641 | /** | |
3642 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3643 | * | |
ac11a2b3 | 3644 | * @platform: platform to unregister |
12a48a8c | 3645 | */ |
f0fba2ad | 3646 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3647 | { |
f0fba2ad LG |
3648 | struct snd_soc_platform *platform; |
3649 | ||
3650 | list_for_each_entry(platform, &platform_list, list) { | |
3651 | if (dev == platform->dev) | |
3652 | goto found; | |
3653 | } | |
3654 | return; | |
3655 | ||
3656 | found: | |
12a48a8c MB |
3657 | mutex_lock(&client_mutex); |
3658 | list_del(&platform->list); | |
3659 | mutex_unlock(&client_mutex); | |
3660 | ||
3661 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3662 | kfree(platform->name); |
3663 | kfree(platform); | |
12a48a8c MB |
3664 | } |
3665 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3666 | ||
151ab22c MB |
3667 | static u64 codec_format_map[] = { |
3668 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3669 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3670 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3671 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3672 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3673 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3674 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3675 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3676 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3677 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3678 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3679 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3680 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3681 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3682 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3683 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3684 | }; | |
3685 | ||
3686 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3687 | * the endianness of the data but we're using the CPU format | |
3688 | * definitions which do need to include endianness so we ensure that | |
3689 | * codec DAIs always have both big and little endian variants set. | |
3690 | */ | |
3691 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3692 | { | |
3693 | int i; | |
3694 | ||
3695 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3696 | if (stream->formats & codec_format_map[i]) | |
3697 | stream->formats |= codec_format_map[i]; | |
3698 | } | |
3699 | ||
0d0cf00a MB |
3700 | /** |
3701 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3702 | * | |
ac11a2b3 | 3703 | * @codec: codec to register |
0d0cf00a | 3704 | */ |
f0fba2ad | 3705 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3706 | const struct snd_soc_codec_driver *codec_drv, |
3707 | struct snd_soc_dai_driver *dai_drv, | |
3708 | int num_dai) | |
0d0cf00a | 3709 | { |
3335ddca | 3710 | size_t reg_size; |
f0fba2ad LG |
3711 | struct snd_soc_codec *codec; |
3712 | int ret, i; | |
151ab22c | 3713 | |
f0fba2ad LG |
3714 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3715 | ||
3716 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3717 | if (codec == NULL) | |
3718 | return -ENOMEM; | |
0d0cf00a | 3719 | |
f0fba2ad LG |
3720 | /* create CODEC component name */ |
3721 | codec->name = fmt_single_name(dev, &codec->id); | |
3722 | if (codec->name == NULL) { | |
3723 | kfree(codec); | |
3724 | return -ENOMEM; | |
3725 | } | |
3726 | ||
23bbce34 DP |
3727 | if (codec_drv->compress_type) |
3728 | codec->compress_type = codec_drv->compress_type; | |
3729 | else | |
3730 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3731 | ||
c3acec26 MB |
3732 | codec->write = codec_drv->write; |
3733 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3734 | codec->volatile_register = codec_drv->volatile_register; |
3735 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3736 | codec->writable_register = codec_drv->writable_register; |
ce6120cc LG |
3737 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3738 | codec->dapm.dev = dev; | |
3739 | codec->dapm.codec = codec; | |
474b62d6 | 3740 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3741 | codec->dev = dev; |
3742 | codec->driver = codec_drv; | |
3743 | codec->num_dai = num_dai; | |
3744 | mutex_init(&codec->mutex); | |
ce6120cc | 3745 | |
f0fba2ad LG |
3746 | /* allocate CODEC register cache */ |
3747 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3748 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3749 | codec->reg_size = reg_size; |
3335ddca DP |
3750 | /* it is necessary to make a copy of the default register cache |
3751 | * because in the case of using a compression type that requires | |
3752 | * the default register cache to be marked as __devinitconst the | |
3753 | * kernel might have freed the array by the time we initialize | |
3754 | * the cache. | |
3755 | */ | |
2aa86323 DP |
3756 | if (codec_drv->reg_cache_default) { |
3757 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3758 | reg_size, GFP_KERNEL); | |
3759 | if (!codec->reg_def_copy) { | |
3760 | ret = -ENOMEM; | |
3761 | goto fail; | |
3762 | } | |
f0fba2ad | 3763 | } |
151ab22c MB |
3764 | } |
3765 | ||
1500b7b5 DP |
3766 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3767 | if (!codec->volatile_register) | |
3768 | codec->volatile_register = snd_soc_default_volatile_register; | |
3769 | if (!codec->readable_register) | |
3770 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3771 | if (!codec->writable_register) |
3772 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3773 | } |
3774 | ||
f0fba2ad LG |
3775 | for (i = 0; i < num_dai; i++) { |
3776 | fixup_codec_formats(&dai_drv[i].playback); | |
3777 | fixup_codec_formats(&dai_drv[i].capture); | |
3778 | } | |
3779 | ||
26b01ccd MB |
3780 | /* register any DAIs */ |
3781 | if (num_dai) { | |
3782 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3783 | if (ret < 0) | |
fdf0f54d | 3784 | goto fail; |
26b01ccd | 3785 | } |
f0fba2ad | 3786 | |
0d0cf00a MB |
3787 | mutex_lock(&client_mutex); |
3788 | list_add(&codec->list, &codec_list); | |
3789 | snd_soc_instantiate_cards(); | |
3790 | mutex_unlock(&client_mutex); | |
3791 | ||
3792 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3793 | return 0; |
f0fba2ad | 3794 | |
fdf0f54d | 3795 | fail: |
3335ddca DP |
3796 | kfree(codec->reg_def_copy); |
3797 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3798 | kfree(codec->name); |
3799 | kfree(codec); | |
3800 | return ret; | |
0d0cf00a MB |
3801 | } |
3802 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3803 | ||
3804 | /** | |
3805 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3806 | * | |
ac11a2b3 | 3807 | * @codec: codec to unregister |
0d0cf00a | 3808 | */ |
f0fba2ad | 3809 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3810 | { |
f0fba2ad LG |
3811 | struct snd_soc_codec *codec; |
3812 | int i; | |
3813 | ||
3814 | list_for_each_entry(codec, &codec_list, list) { | |
3815 | if (dev == codec->dev) | |
3816 | goto found; | |
3817 | } | |
3818 | return; | |
3819 | ||
3820 | found: | |
26b01ccd MB |
3821 | if (codec->num_dai) |
3822 | for (i = 0; i < codec->num_dai; i++) | |
3823 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3824 | |
0d0cf00a MB |
3825 | mutex_lock(&client_mutex); |
3826 | list_del(&codec->list); | |
3827 | mutex_unlock(&client_mutex); | |
3828 | ||
3829 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3830 | |
7a30a3db | 3831 | snd_soc_cache_exit(codec); |
3335ddca | 3832 | kfree(codec->reg_def_copy); |
1aafcd4d | 3833 | kfree(codec->name); |
f0fba2ad | 3834 | kfree(codec); |
0d0cf00a MB |
3835 | } |
3836 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3837 | ||
c9b3a40f | 3838 | static int __init snd_soc_init(void) |
db2a4165 | 3839 | { |
384c89e2 | 3840 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3841 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3842 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3843 | printk(KERN_WARNING |
3844 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3845 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3846 | } |
c3c5a19a | 3847 | |
8a9dab1a | 3848 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3849 | &codec_list_fops)) |
3850 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3851 | ||
8a9dab1a | 3852 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3853 | &dai_list_fops)) |
3854 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3855 | |
8a9dab1a | 3856 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3857 | &platform_list_fops)) |
3858 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3859 | #endif |
3860 | ||
fb257897 MB |
3861 | snd_soc_util_init(); |
3862 | ||
db2a4165 FM |
3863 | return platform_driver_register(&soc_driver); |
3864 | } | |
4abe8e16 | 3865 | module_init(snd_soc_init); |
db2a4165 | 3866 | |
7d8c16a6 | 3867 | static void __exit snd_soc_exit(void) |
db2a4165 | 3868 | { |
fb257897 MB |
3869 | snd_soc_util_exit(); |
3870 | ||
384c89e2 | 3871 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3872 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3873 | #endif |
3ff3f64b | 3874 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3875 | } |
db2a4165 FM |
3876 | module_exit(snd_soc_exit); |
3877 | ||
3878 | /* Module information */ | |
d331124d | 3879 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3880 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3881 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3882 | MODULE_ALIAS("platform:soc-audio"); |