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> |
f0e8ed85 | 33 | #include <linux/ctype.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
bec4fa05 | 35 | #include <linux/of.h> |
474828a4 | 36 | #include <sound/ac97_codec.h> |
db2a4165 | 37 | #include <sound/core.h> |
3028eb8c | 38 | #include <sound/jack.h> |
db2a4165 FM |
39 | #include <sound/pcm.h> |
40 | #include <sound/pcm_params.h> | |
41 | #include <sound/soc.h> | |
db2a4165 FM |
42 | #include <sound/initval.h> |
43 | ||
a8b1d34f MB |
44 | #define CREATE_TRACE_POINTS |
45 | #include <trace/events/asoc.h> | |
46 | ||
f0fba2ad LG |
47 | #define NAME_SIZE 32 |
48 | ||
db2a4165 FM |
49 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
50 | ||
384c89e2 | 51 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
52 | struct dentry *snd_soc_debugfs_root; |
53 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
54 | #endif |
55 | ||
c5af3a2e MB |
56 | static DEFINE_MUTEX(client_mutex); |
57 | static LIST_HEAD(card_list); | |
9115171a | 58 | static LIST_HEAD(dai_list); |
12a48a8c | 59 | static LIST_HEAD(platform_list); |
0d0cf00a | 60 | static LIST_HEAD(codec_list); |
c5af3a2e | 61 | |
db2a4165 FM |
62 | /* |
63 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
64 | * It can be used to eliminate pops between different playback streams, e.g. | |
65 | * between two audio tracks. | |
66 | */ | |
67 | static int pmdown_time = 5000; | |
68 | module_param(pmdown_time, int, 0); | |
69 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
70 | ||
2bc9a81e DP |
71 | /* returns the minimum number of bytes needed to represent |
72 | * a particular given value */ | |
73 | static int min_bytes_needed(unsigned long val) | |
74 | { | |
75 | int c = 0; | |
76 | int i; | |
77 | ||
78 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
79 | if (val & (1UL << i)) | |
80 | break; | |
81 | c = (sizeof val * 8) - c; | |
82 | if (!c || (c % 8)) | |
83 | c = (c + 8) / 8; | |
84 | else | |
85 | c /= 8; | |
86 | return c; | |
87 | } | |
88 | ||
13fd179f DP |
89 | /* fill buf which is 'len' bytes with a formatted |
90 | * string of the form 'reg: value\n' */ | |
91 | static int format_register_str(struct snd_soc_codec *codec, | |
92 | unsigned int reg, char *buf, size_t len) | |
93 | { | |
00b317a4 SW |
94 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
95 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
96 | int ret; |
97 | char tmpbuf[len + 1]; | |
98 | char regbuf[regsize + 1]; | |
99 | ||
100 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
101 | * try to abuse this function */ | |
102 | WARN_ON(len > 63); | |
103 | ||
104 | /* +2 for ': ' and + 1 for '\n' */ | |
105 | if (wordsize + regsize + 2 + 1 != len) | |
106 | return -EINVAL; | |
107 | ||
25032c11 | 108 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
109 | if (ret < 0) { |
110 | memset(regbuf, 'X', regsize); | |
111 | regbuf[regsize] = '\0'; | |
112 | } else { | |
113 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
114 | } | |
115 | ||
116 | /* prepare the buffer */ | |
117 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
118 | /* copy it back to the caller without the '\0' */ | |
119 | memcpy(buf, tmpbuf, len); | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
2624d5fa | 124 | /* codec register dump */ |
13fd179f DP |
125 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
126 | size_t count, loff_t pos) | |
2624d5fa | 127 | { |
13fd179f | 128 | int i, step = 1; |
2bc9a81e | 129 | int wordsize, regsize; |
13fd179f DP |
130 | int len; |
131 | size_t total = 0; | |
132 | loff_t p = 0; | |
2bc9a81e | 133 | |
00b317a4 SW |
134 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
135 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 136 | |
13fd179f DP |
137 | len = wordsize + regsize + 2 + 1; |
138 | ||
f0fba2ad | 139 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
140 | return 0; |
141 | ||
f0fba2ad LG |
142 | if (codec->driver->reg_cache_step) |
143 | step = codec->driver->reg_cache_step; | |
2624d5fa | 144 | |
f0fba2ad | 145 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
b92d150b | 146 | if (!snd_soc_codec_readable_register(codec, i)) |
2624d5fa | 147 | continue; |
f0fba2ad LG |
148 | if (codec->driver->display_register) { |
149 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 150 | PAGE_SIZE - count, i); |
5164d74d | 151 | } else { |
13fd179f DP |
152 | /* only support larger than PAGE_SIZE bytes debugfs |
153 | * entries for the default case */ | |
154 | if (p >= pos) { | |
155 | if (total + len >= count - 1) | |
156 | break; | |
157 | format_register_str(codec, i, buf + total, len); | |
158 | total += len; | |
159 | } | |
160 | p += len; | |
5164d74d | 161 | } |
2624d5fa MB |
162 | } |
163 | ||
13fd179f | 164 | total = min(total, count - 1); |
2624d5fa | 165 | |
13fd179f | 166 | return total; |
2624d5fa | 167 | } |
13fd179f | 168 | |
2624d5fa MB |
169 | static ssize_t codec_reg_show(struct device *dev, |
170 | struct device_attribute *attr, char *buf) | |
171 | { | |
36ae1a96 | 172 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 173 | |
13fd179f | 174 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
175 | } |
176 | ||
177 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
178 | ||
dbe21408 MB |
179 | static ssize_t pmdown_time_show(struct device *dev, |
180 | struct device_attribute *attr, char *buf) | |
181 | { | |
36ae1a96 | 182 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 183 | |
f0fba2ad | 184 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
185 | } |
186 | ||
187 | static ssize_t pmdown_time_set(struct device *dev, | |
188 | struct device_attribute *attr, | |
189 | const char *buf, size_t count) | |
190 | { | |
36ae1a96 | 191 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 192 | int ret; |
dbe21408 | 193 | |
c593b520 MB |
194 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
195 | if (ret) | |
196 | return ret; | |
dbe21408 MB |
197 | |
198 | return count; | |
199 | } | |
200 | ||
201 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
202 | ||
2624d5fa MB |
203 | #ifdef CONFIG_DEBUG_FS |
204 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
205 | { | |
206 | file->private_data = inode->i_private; | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
13fd179f | 211 | size_t count, loff_t *ppos) |
2624d5fa MB |
212 | { |
213 | ssize_t ret; | |
214 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
215 | char *buf; |
216 | ||
217 | if (*ppos < 0 || !count) | |
218 | return -EINVAL; | |
219 | ||
220 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
221 | if (!buf) |
222 | return -ENOMEM; | |
13fd179f DP |
223 | |
224 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
225 | if (ret >= 0) { | |
226 | if (copy_to_user(user_buf, buf, ret)) { | |
227 | kfree(buf); | |
228 | return -EFAULT; | |
229 | } | |
230 | *ppos += ret; | |
231 | } | |
232 | ||
2624d5fa MB |
233 | kfree(buf); |
234 | return ret; | |
235 | } | |
236 | ||
237 | static ssize_t codec_reg_write_file(struct file *file, | |
238 | const char __user *user_buf, size_t count, loff_t *ppos) | |
239 | { | |
240 | char buf[32]; | |
34e268d8 | 241 | size_t buf_size; |
2624d5fa MB |
242 | char *start = buf; |
243 | unsigned long reg, value; | |
2624d5fa MB |
244 | struct snd_soc_codec *codec = file->private_data; |
245 | ||
246 | buf_size = min(count, (sizeof(buf)-1)); | |
247 | if (copy_from_user(buf, user_buf, buf_size)) | |
248 | return -EFAULT; | |
249 | buf[buf_size] = 0; | |
2624d5fa MB |
250 | |
251 | while (*start == ' ') | |
252 | start++; | |
253 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
254 | while (*start == ' ') |
255 | start++; | |
256 | if (strict_strtoul(start, 16, &value)) | |
257 | return -EINVAL; | |
0d51a9cb MB |
258 | |
259 | /* Userspace has been fiddling around behind the kernel's back */ | |
260 | add_taint(TAINT_USER); | |
261 | ||
e4f078d8 | 262 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
263 | return buf_size; |
264 | } | |
265 | ||
266 | static const struct file_operations codec_reg_fops = { | |
267 | .open = codec_reg_open_file, | |
268 | .read = codec_reg_read_file, | |
269 | .write = codec_reg_write_file, | |
6038f373 | 270 | .llseek = default_llseek, |
2624d5fa MB |
271 | }; |
272 | ||
273 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
274 | { | |
d6ce4cf3 JN |
275 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
276 | ||
277 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
278 | debugfs_card_root); | |
2624d5fa | 279 | if (!codec->debugfs_codec_root) { |
64e60f9f | 280 | dev_warn(codec->dev, "Failed to create codec debugfs directory\n"); |
2624d5fa MB |
281 | return; |
282 | } | |
283 | ||
aaee8ef1 MB |
284 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
285 | &codec->cache_sync); | |
286 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
287 | &codec->cache_only); | |
288 | ||
2624d5fa MB |
289 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
290 | codec->debugfs_codec_root, | |
291 | codec, &codec_reg_fops); | |
292 | if (!codec->debugfs_reg) | |
64e60f9f | 293 | dev_warn(codec->dev, "Failed to create codec register debugfs file\n"); |
2624d5fa | 294 | |
8eecaf62 | 295 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
296 | } |
297 | ||
298 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
299 | { | |
300 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
301 | } | |
302 | ||
c3c5a19a MB |
303 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
304 | size_t count, loff_t *ppos) | |
305 | { | |
306 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 307 | ssize_t len, ret = 0; |
c3c5a19a MB |
308 | struct snd_soc_codec *codec; |
309 | ||
310 | if (!buf) | |
311 | return -ENOMEM; | |
312 | ||
2b194f9d MB |
313 | list_for_each_entry(codec, &codec_list, list) { |
314 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
315 | codec->name); | |
316 | if (len >= 0) | |
317 | ret += len; | |
318 | if (ret > PAGE_SIZE) { | |
319 | ret = PAGE_SIZE; | |
320 | break; | |
321 | } | |
322 | } | |
c3c5a19a MB |
323 | |
324 | if (ret >= 0) | |
325 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
326 | ||
327 | kfree(buf); | |
328 | ||
329 | return ret; | |
330 | } | |
331 | ||
332 | static const struct file_operations codec_list_fops = { | |
333 | .read = codec_list_read_file, | |
334 | .llseek = default_llseek,/* read accesses f_pos */ | |
335 | }; | |
336 | ||
f3208780 MB |
337 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
338 | size_t count, loff_t *ppos) | |
339 | { | |
340 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 341 | ssize_t len, ret = 0; |
f3208780 MB |
342 | struct snd_soc_dai *dai; |
343 | ||
344 | if (!buf) | |
345 | return -ENOMEM; | |
346 | ||
2b194f9d MB |
347 | list_for_each_entry(dai, &dai_list, list) { |
348 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
349 | if (len >= 0) | |
350 | ret += len; | |
351 | if (ret > PAGE_SIZE) { | |
352 | ret = PAGE_SIZE; | |
353 | break; | |
354 | } | |
355 | } | |
f3208780 | 356 | |
2b194f9d | 357 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
358 | |
359 | kfree(buf); | |
360 | ||
361 | return ret; | |
362 | } | |
363 | ||
364 | static const struct file_operations dai_list_fops = { | |
365 | .read = dai_list_read_file, | |
366 | .llseek = default_llseek,/* read accesses f_pos */ | |
367 | }; | |
368 | ||
19c7ac27 MB |
369 | static ssize_t platform_list_read_file(struct file *file, |
370 | char __user *user_buf, | |
371 | size_t count, loff_t *ppos) | |
372 | { | |
373 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 374 | ssize_t len, ret = 0; |
19c7ac27 MB |
375 | struct snd_soc_platform *platform; |
376 | ||
377 | if (!buf) | |
378 | return -ENOMEM; | |
379 | ||
2b194f9d MB |
380 | list_for_each_entry(platform, &platform_list, list) { |
381 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
382 | platform->name); | |
383 | if (len >= 0) | |
384 | ret += len; | |
385 | if (ret > PAGE_SIZE) { | |
386 | ret = PAGE_SIZE; | |
387 | break; | |
388 | } | |
389 | } | |
19c7ac27 | 390 | |
2b194f9d | 391 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
392 | |
393 | kfree(buf); | |
394 | ||
395 | return ret; | |
396 | } | |
397 | ||
398 | static const struct file_operations platform_list_fops = { | |
399 | .read = platform_list_read_file, | |
400 | .llseek = default_llseek,/* read accesses f_pos */ | |
401 | }; | |
402 | ||
a6052154 JN |
403 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
404 | { | |
405 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 406 | snd_soc_debugfs_root); |
3a45b867 | 407 | if (!card->debugfs_card_root) { |
a6052154 | 408 | dev_warn(card->dev, |
7c08be84 | 409 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
410 | return; |
411 | } | |
412 | ||
413 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
414 | card->debugfs_card_root, | |
415 | &card->pop_time); | |
416 | if (!card->debugfs_pop_time) | |
417 | dev_warn(card->dev, | |
418 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
419 | } |
420 | ||
421 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
422 | { | |
423 | debugfs_remove_recursive(card->debugfs_card_root); | |
424 | } | |
425 | ||
2624d5fa MB |
426 | #else |
427 | ||
428 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
429 | { | |
430 | } | |
431 | ||
432 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
433 | { | |
434 | } | |
b95fccbc AL |
435 | |
436 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
437 | { | |
438 | } | |
439 | ||
440 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
441 | { | |
442 | } | |
2624d5fa MB |
443 | #endif |
444 | ||
db2a4165 FM |
445 | #ifdef CONFIG_SND_SOC_AC97_BUS |
446 | /* unregister ac97 codec */ | |
447 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
448 | { | |
449 | if (codec->ac97->dev.bus) | |
450 | device_unregister(&codec->ac97->dev); | |
451 | return 0; | |
452 | } | |
453 | ||
454 | /* stop no dev release warning */ | |
455 | static void soc_ac97_device_release(struct device *dev){} | |
456 | ||
457 | /* register ac97 codec to bus */ | |
458 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
459 | { | |
460 | int err; | |
461 | ||
462 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 463 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
464 | codec->ac97->dev.release = soc_ac97_device_release; |
465 | ||
bb072bf0 | 466 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 467 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
468 | err = device_register(&codec->ac97->dev); |
469 | if (err < 0) { | |
470 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
471 | codec->ac97->dev.bus = NULL; | |
472 | return err; | |
473 | } | |
474 | return 0; | |
475 | } | |
476 | #endif | |
477 | ||
6f8ab4ac | 478 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 479 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 480 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 481 | { |
6f8ab4ac | 482 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 483 | struct snd_soc_codec *codec; |
db2a4165 FM |
484 | int i; |
485 | ||
e3509ff0 DM |
486 | /* If the initialization of this soc device failed, there is no codec |
487 | * associated with it. Just bail out in this case. | |
488 | */ | |
f0fba2ad | 489 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
490 | return 0; |
491 | ||
6ed25978 AG |
492 | /* Due to the resume being scheduled into a workqueue we could |
493 | * suspend before that's finished - wait for it to complete. | |
494 | */ | |
f0fba2ad LG |
495 | snd_power_lock(card->snd_card); |
496 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
497 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
498 | |
499 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 500 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 501 | |
a00f90f9 | 502 | /* mute any active DACs */ |
f0fba2ad LG |
503 | for (i = 0; i < card->num_rtd; i++) { |
504 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
505 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 506 | |
f0fba2ad | 507 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
508 | continue; |
509 | ||
f0fba2ad LG |
510 | if (drv->ops->digital_mute && dai->playback_active) |
511 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
512 | } |
513 | ||
4ccab3e7 | 514 | /* suspend all pcms */ |
f0fba2ad LG |
515 | for (i = 0; i < card->num_rtd; i++) { |
516 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
517 | continue; |
518 | ||
f0fba2ad | 519 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 520 | } |
4ccab3e7 | 521 | |
87506549 | 522 | if (card->suspend_pre) |
70b2ac12 | 523 | card->suspend_pre(card); |
db2a4165 | 524 | |
f0fba2ad LG |
525 | for (i = 0; i < card->num_rtd; i++) { |
526 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
527 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 528 | |
f0fba2ad | 529 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
530 | continue; |
531 | ||
f0fba2ad LG |
532 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
533 | cpu_dai->driver->suspend(cpu_dai); | |
534 | if (platform->driver->suspend && !platform->suspended) { | |
535 | platform->driver->suspend(cpu_dai); | |
536 | platform->suspended = 1; | |
537 | } | |
db2a4165 FM |
538 | } |
539 | ||
540 | /* close any waiting streams and save state */ | |
f0fba2ad | 541 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 542 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 543 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 544 | } |
db2a4165 | 545 | |
f0fba2ad LG |
546 | for (i = 0; i < card->num_rtd; i++) { |
547 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 548 | |
f0fba2ad | 549 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
550 | continue; |
551 | ||
f0fba2ad LG |
552 | if (driver->playback.stream_name != NULL) |
553 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 554 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
555 | |
556 | if (driver->capture.stream_name != NULL) | |
557 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
558 | SND_SOC_DAPM_STREAM_SUSPEND); |
559 | } | |
560 | ||
f0fba2ad | 561 | /* suspend all CODECs */ |
2eea392d | 562 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
563 | /* If there are paths active then the CODEC will be held with |
564 | * bias _ON and should not be suspended. */ | |
565 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 566 | switch (codec->dapm.bias_level) { |
f0fba2ad | 567 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
568 | /* |
569 | * If the CODEC is capable of idle | |
570 | * bias off then being in STANDBY | |
571 | * means it's doing something, | |
572 | * otherwise fall through. | |
573 | */ | |
574 | if (codec->dapm.idle_bias_off) { | |
575 | dev_dbg(codec->dev, | |
576 | "idle_bias_off CODEC on over suspend\n"); | |
577 | break; | |
578 | } | |
f0fba2ad | 579 | case SND_SOC_BIAS_OFF: |
84b315ee | 580 | codec->driver->suspend(codec); |
f0fba2ad | 581 | codec->suspended = 1; |
7be4ba24 | 582 | codec->cache_sync = 1; |
f0fba2ad LG |
583 | break; |
584 | default: | |
585 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
586 | break; | |
587 | } | |
1547aba9 MB |
588 | } |
589 | } | |
db2a4165 | 590 | |
f0fba2ad LG |
591 | for (i = 0; i < card->num_rtd; i++) { |
592 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 593 | |
f0fba2ad | 594 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
595 | continue; |
596 | ||
f0fba2ad LG |
597 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
598 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
599 | } |
600 | ||
87506549 | 601 | if (card->suspend_post) |
70b2ac12 | 602 | card->suspend_post(card); |
db2a4165 FM |
603 | |
604 | return 0; | |
605 | } | |
6f8ab4ac | 606 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 607 | |
6ed25978 AG |
608 | /* deferred resume work, so resume can complete before we finished |
609 | * setting our codec back up, which can be very slow on I2C | |
610 | */ | |
611 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 612 | { |
f0fba2ad LG |
613 | struct snd_soc_card *card = |
614 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 615 | struct snd_soc_codec *codec; |
db2a4165 FM |
616 | int i; |
617 | ||
6ed25978 AG |
618 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
619 | * so userspace apps are blocked from touching us | |
620 | */ | |
621 | ||
f0fba2ad | 622 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 623 | |
9949788b | 624 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 625 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 626 | |
87506549 | 627 | if (card->resume_pre) |
70b2ac12 | 628 | card->resume_pre(card); |
db2a4165 | 629 | |
f0fba2ad LG |
630 | /* resume AC97 DAIs */ |
631 | for (i = 0; i < card->num_rtd; i++) { | |
632 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 633 | |
f0fba2ad | 634 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
635 | continue; |
636 | ||
f0fba2ad LG |
637 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
638 | cpu_dai->driver->resume(cpu_dai); | |
639 | } | |
640 | ||
2eea392d | 641 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
642 | /* If the CODEC was idle over suspend then it will have been |
643 | * left with bias OFF or STANDBY and suspended so we must now | |
644 | * resume. Otherwise the suspend was suppressed. | |
645 | */ | |
646 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 647 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
648 | case SND_SOC_BIAS_STANDBY: |
649 | case SND_SOC_BIAS_OFF: | |
650 | codec->driver->resume(codec); | |
651 | codec->suspended = 0; | |
652 | break; | |
653 | default: | |
654 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
655 | break; | |
656 | } | |
1547aba9 MB |
657 | } |
658 | } | |
db2a4165 | 659 | |
f0fba2ad LG |
660 | for (i = 0; i < card->num_rtd; i++) { |
661 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 662 | |
f0fba2ad | 663 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
664 | continue; |
665 | ||
f0fba2ad LG |
666 | if (driver->playback.stream_name != NULL) |
667 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 668 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
669 | |
670 | if (driver->capture.stream_name != NULL) | |
671 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
672 | SND_SOC_DAPM_STREAM_RESUME); |
673 | } | |
674 | ||
3ff3f64b | 675 | /* unmute any active DACs */ |
f0fba2ad LG |
676 | for (i = 0; i < card->num_rtd; i++) { |
677 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
678 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 679 | |
f0fba2ad | 680 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
681 | continue; |
682 | ||
f0fba2ad LG |
683 | if (drv->ops->digital_mute && dai->playback_active) |
684 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
685 | } |
686 | ||
f0fba2ad LG |
687 | for (i = 0; i < card->num_rtd; i++) { |
688 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
689 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 690 | |
f0fba2ad | 691 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
692 | continue; |
693 | ||
f0fba2ad LG |
694 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
695 | cpu_dai->driver->resume(cpu_dai); | |
696 | if (platform->driver->resume && platform->suspended) { | |
697 | platform->driver->resume(cpu_dai); | |
698 | platform->suspended = 0; | |
699 | } | |
db2a4165 FM |
700 | } |
701 | ||
87506549 | 702 | if (card->resume_post) |
70b2ac12 | 703 | card->resume_post(card); |
db2a4165 | 704 | |
f0fba2ad | 705 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
706 | |
707 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 708 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
709 | } |
710 | ||
711 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 712 | int snd_soc_resume(struct device *dev) |
6ed25978 | 713 | { |
6f8ab4ac | 714 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 715 | int i, ac97_control = 0; |
b9dd94a8 | 716 | |
5ff1ddf2 EM |
717 | /* If the initialization of this soc device failed, there is no codec |
718 | * associated with it. Just bail out in this case. | |
719 | */ | |
720 | if (list_empty(&card->codec_dev_list)) | |
721 | return 0; | |
722 | ||
64ab9baa MB |
723 | /* AC97 devices might have other drivers hanging off them so |
724 | * need to resume immediately. Other drivers don't have that | |
725 | * problem and may take a substantial amount of time to resume | |
726 | * due to I/O costs and anti-pop so handle them out of line. | |
727 | */ | |
f0fba2ad LG |
728 | for (i = 0; i < card->num_rtd; i++) { |
729 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
730 | ac97_control |= cpu_dai->driver->ac97_control; |
731 | } | |
732 | if (ac97_control) { | |
733 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
734 | soc_resume_deferred(&card->deferred_resume_work); | |
735 | } else { | |
736 | dev_dbg(dev, "Scheduling resume work\n"); | |
737 | if (!schedule_work(&card->deferred_resume_work)) | |
738 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 739 | } |
6ed25978 | 740 | |
db2a4165 FM |
741 | return 0; |
742 | } | |
6f8ab4ac | 743 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 744 | #else |
6f8ab4ac MB |
745 | #define snd_soc_suspend NULL |
746 | #define snd_soc_resume NULL | |
db2a4165 FM |
747 | #endif |
748 | ||
85e7652d | 749 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
750 | }; |
751 | ||
f0fba2ad | 752 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 753 | { |
f0fba2ad LG |
754 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
755 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 756 | struct snd_soc_codec *codec; |
435c5e25 | 757 | struct snd_soc_platform *platform; |
f0fba2ad | 758 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 759 | const char *platform_name; |
435c5e25 | 760 | |
f0fba2ad LG |
761 | if (rtd->complete) |
762 | return 1; | |
763 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 764 | |
f0fba2ad LG |
765 | /* do we already have the CPU DAI for this link ? */ |
766 | if (rtd->cpu_dai) { | |
767 | goto find_codec; | |
768 | } | |
769 | /* no, then find CPU DAI from registered DAIs*/ | |
770 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
5a504963 SW |
771 | if (dai_link->cpu_dai_of_node) { |
772 | if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node) | |
773 | continue; | |
774 | } else { | |
775 | if (strcmp(cpu_dai->name, dai_link->cpu_dai_name)) | |
776 | continue; | |
777 | } | |
2610ab77 SW |
778 | |
779 | rtd->cpu_dai = cpu_dai; | |
780 | goto find_codec; | |
435c5e25 | 781 | } |
f0fba2ad LG |
782 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
783 | dai_link->cpu_dai_name); | |
6308419a | 784 | |
f0fba2ad LG |
785 | find_codec: |
786 | /* do we already have the CODEC for this link ? */ | |
787 | if (rtd->codec) { | |
788 | goto find_platform; | |
789 | } | |
790 | ||
791 | /* no, then find CODEC from registered CODECs*/ | |
792 | list_for_each_entry(codec, &codec_list, list) { | |
5a504963 SW |
793 | if (dai_link->codec_of_node) { |
794 | if (codec->dev->of_node != dai_link->codec_of_node) | |
795 | continue; | |
796 | } else { | |
797 | if (strcmp(codec->name, dai_link->codec_name)) | |
798 | continue; | |
799 | } | |
2610ab77 SW |
800 | |
801 | rtd->codec = codec; | |
802 | ||
803 | /* | |
804 | * CODEC found, so find CODEC DAI from registered DAIs from | |
805 | * this CODEC | |
806 | */ | |
807 | list_for_each_entry(codec_dai, &dai_list, list) { | |
808 | if (codec->dev == codec_dai->dev && | |
809 | !strcmp(codec_dai->name, | |
810 | dai_link->codec_dai_name)) { | |
f0fba2ad | 811 | |
2610ab77 SW |
812 | rtd->codec_dai = codec_dai; |
813 | goto find_platform; | |
814 | } | |
435c5e25 | 815 | } |
2610ab77 SW |
816 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
817 | dai_link->codec_dai_name); | |
818 | ||
819 | goto find_platform; | |
f0fba2ad LG |
820 | } |
821 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
822 | dai_link->codec_name); | |
6b05eda6 | 823 | |
f0fba2ad | 824 | find_platform: |
848dd8be MB |
825 | /* do we need a platform? */ |
826 | if (rtd->platform) | |
f0fba2ad | 827 | goto out; |
848dd8be MB |
828 | |
829 | /* if there's no platform we match on the empty platform */ | |
830 | platform_name = dai_link->platform_name; | |
5a504963 | 831 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
832 | platform_name = "snd-soc-dummy"; |
833 | ||
834 | /* no, then find one from the set of registered platforms */ | |
f0fba2ad | 835 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
836 | if (dai_link->platform_of_node) { |
837 | if (platform->dev->of_node != | |
838 | dai_link->platform_of_node) | |
839 | continue; | |
840 | } else { | |
841 | if (strcmp(platform->name, platform_name)) | |
842 | continue; | |
843 | } | |
2610ab77 SW |
844 | |
845 | rtd->platform = platform; | |
846 | goto out; | |
02a06d30 BS |
847 | } |
848 | ||
f0fba2ad LG |
849 | dev_dbg(card->dev, "platform %s not registered\n", |
850 | dai_link->platform_name); | |
851 | return 0; | |
852 | ||
853 | out: | |
854 | /* mark rtd as complete if we found all 4 of our client devices */ | |
855 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
856 | rtd->complete = 1; | |
857 | card->num_rtd++; | |
858 | } | |
859 | return 1; | |
860 | } | |
861 | ||
589c3563 JN |
862 | static void soc_remove_codec(struct snd_soc_codec *codec) |
863 | { | |
864 | int err; | |
865 | ||
866 | if (codec->driver->remove) { | |
867 | err = codec->driver->remove(codec); | |
868 | if (err < 0) | |
869 | dev_err(codec->dev, | |
870 | "asoc: failed to remove %s: %d\n", | |
871 | codec->name, err); | |
872 | } | |
873 | ||
874 | /* Make sure all DAPM widgets are freed */ | |
875 | snd_soc_dapm_free(&codec->dapm); | |
876 | ||
877 | soc_cleanup_codec_debugfs(codec); | |
878 | codec->probed = 0; | |
879 | list_del(&codec->card_list); | |
880 | module_put(codec->dev->driver->owner); | |
881 | } | |
882 | ||
0168bf0d | 883 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
884 | { |
885 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
886 | struct snd_soc_codec *codec = rtd->codec; | |
887 | struct snd_soc_platform *platform = rtd->platform; | |
888 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
889 | int err; | |
890 | ||
891 | /* unregister the rtd device */ | |
892 | if (rtd->dev_registered) { | |
36ae1a96 MB |
893 | device_remove_file(rtd->dev, &dev_attr_pmdown_time); |
894 | device_remove_file(rtd->dev, &dev_attr_codec_reg); | |
895 | device_unregister(rtd->dev); | |
f0fba2ad LG |
896 | rtd->dev_registered = 0; |
897 | } | |
898 | ||
899 | /* remove the CODEC DAI */ | |
0168bf0d LG |
900 | if (codec_dai && codec_dai->probed && |
901 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
902 | if (codec_dai->driver->remove) { |
903 | err = codec_dai->driver->remove(codec_dai); | |
904 | if (err < 0) | |
905 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 906 | } |
f0fba2ad LG |
907 | codec_dai->probed = 0; |
908 | list_del(&codec_dai->card_list); | |
909 | } | |
6b05eda6 | 910 | |
f0fba2ad | 911 | /* remove the platform */ |
0168bf0d LG |
912 | if (platform && platform->probed && |
913 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
914 | if (platform->driver->remove) { |
915 | err = platform->driver->remove(platform); | |
916 | if (err < 0) | |
917 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
918 | } | |
675c496b LG |
919 | |
920 | /* Make sure all DAPM widgets are freed */ | |
921 | snd_soc_dapm_free(&platform->dapm); | |
922 | ||
f0fba2ad LG |
923 | platform->probed = 0; |
924 | list_del(&platform->card_list); | |
925 | module_put(platform->dev->driver->owner); | |
926 | } | |
435c5e25 | 927 | |
f0fba2ad | 928 | /* remove the CODEC */ |
0168bf0d LG |
929 | if (codec && codec->probed && |
930 | codec->driver->remove_order == order) | |
589c3563 | 931 | soc_remove_codec(codec); |
db2a4165 | 932 | |
f0fba2ad | 933 | /* remove the cpu_dai */ |
0168bf0d LG |
934 | if (cpu_dai && cpu_dai->probed && |
935 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
936 | if (cpu_dai->driver->remove) { |
937 | err = cpu_dai->driver->remove(cpu_dai); | |
938 | if (err < 0) | |
939 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 940 | } |
f0fba2ad LG |
941 | cpu_dai->probed = 0; |
942 | list_del(&cpu_dai->card_list); | |
943 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 944 | } |
f0fba2ad | 945 | } |
db2a4165 | 946 | |
0671fd8e KM |
947 | static void soc_remove_dai_links(struct snd_soc_card *card) |
948 | { | |
0168bf0d | 949 | int dai, order; |
0671fd8e | 950 | |
0168bf0d LG |
951 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
952 | order++) { | |
953 | for (dai = 0; dai < card->num_rtd; dai++) | |
954 | soc_remove_dai_link(card, dai, order); | |
955 | } | |
0671fd8e KM |
956 | card->num_rtd = 0; |
957 | } | |
958 | ||
ead9b919 JN |
959 | static void soc_set_name_prefix(struct snd_soc_card *card, |
960 | struct snd_soc_codec *codec) | |
961 | { | |
962 | int i; | |
963 | ||
ff819b83 | 964 | if (card->codec_conf == NULL) |
ead9b919 JN |
965 | return; |
966 | ||
ff819b83 DP |
967 | for (i = 0; i < card->num_configs; i++) { |
968 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
969 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
970 | codec->name_prefix = map->name_prefix; | |
971 | break; | |
972 | } | |
973 | } | |
974 | } | |
975 | ||
589c3563 JN |
976 | static int soc_probe_codec(struct snd_soc_card *card, |
977 | struct snd_soc_codec *codec) | |
978 | { | |
979 | int ret = 0; | |
89b95ac0 | 980 | const struct snd_soc_codec_driver *driver = codec->driver; |
589c3563 JN |
981 | |
982 | codec->card = card; | |
983 | codec->dapm.card = card; | |
984 | soc_set_name_prefix(card, codec); | |
985 | ||
70d29331 JN |
986 | if (!try_module_get(codec->dev->driver->owner)) |
987 | return -ENODEV; | |
988 | ||
d5d1e0be LPC |
989 | soc_init_codec_debugfs(codec); |
990 | ||
77530150 LPC |
991 | if (driver->dapm_widgets) |
992 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
993 | driver->num_dapm_widgets); | |
994 | ||
33c5f969 MB |
995 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
996 | ||
89b95ac0 MB |
997 | if (driver->probe) { |
998 | ret = driver->probe(codec); | |
589c3563 JN |
999 | if (ret < 0) { |
1000 | dev_err(codec->dev, | |
1001 | "asoc: failed to probe CODEC %s: %d\n", | |
1002 | codec->name, ret); | |
70d29331 | 1003 | goto err_probe; |
589c3563 JN |
1004 | } |
1005 | } | |
1006 | ||
b7af1daf | 1007 | if (driver->controls) |
022658be | 1008 | snd_soc_add_codec_controls(codec, driver->controls, |
b7af1daf | 1009 | driver->num_controls); |
89b95ac0 MB |
1010 | if (driver->dapm_routes) |
1011 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1012 | driver->num_dapm_routes); | |
1013 | ||
589c3563 JN |
1014 | /* mark codec as probed and add to card codec list */ |
1015 | codec->probed = 1; | |
1016 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1017 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1018 | |
70d29331 JN |
1019 | return 0; |
1020 | ||
1021 | err_probe: | |
d5d1e0be | 1022 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1023 | module_put(codec->dev->driver->owner); |
1024 | ||
589c3563 JN |
1025 | return ret; |
1026 | } | |
1027 | ||
956245e9 LG |
1028 | static int soc_probe_platform(struct snd_soc_card *card, |
1029 | struct snd_soc_platform *platform) | |
1030 | { | |
1031 | int ret = 0; | |
1032 | const struct snd_soc_platform_driver *driver = platform->driver; | |
1033 | ||
1034 | platform->card = card; | |
b7950641 | 1035 | platform->dapm.card = card; |
956245e9 LG |
1036 | |
1037 | if (!try_module_get(platform->dev->driver->owner)) | |
1038 | return -ENODEV; | |
1039 | ||
cb2cf612 LG |
1040 | if (driver->dapm_widgets) |
1041 | snd_soc_dapm_new_controls(&platform->dapm, | |
1042 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1043 | ||
956245e9 LG |
1044 | if (driver->probe) { |
1045 | ret = driver->probe(platform); | |
1046 | if (ret < 0) { | |
1047 | dev_err(platform->dev, | |
1048 | "asoc: failed to probe platform %s: %d\n", | |
1049 | platform->name, ret); | |
1050 | goto err_probe; | |
1051 | } | |
1052 | } | |
1053 | ||
cb2cf612 LG |
1054 | if (driver->controls) |
1055 | snd_soc_add_platform_controls(platform, driver->controls, | |
1056 | driver->num_controls); | |
1057 | if (driver->dapm_routes) | |
1058 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1059 | driver->num_dapm_routes); | |
1060 | ||
956245e9 LG |
1061 | /* mark platform as probed and add to card platform list */ |
1062 | platform->probed = 1; | |
1063 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1064 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1065 | |
1066 | return 0; | |
1067 | ||
1068 | err_probe: | |
1069 | module_put(platform->dev->driver->owner); | |
1070 | ||
1071 | return ret; | |
1072 | } | |
1073 | ||
36ae1a96 MB |
1074 | static void rtd_release(struct device *dev) |
1075 | { | |
1076 | kfree(dev); | |
1077 | } | |
f0fba2ad | 1078 | |
589c3563 JN |
1079 | static int soc_post_component_init(struct snd_soc_card *card, |
1080 | struct snd_soc_codec *codec, | |
1081 | int num, int dailess) | |
1082 | { | |
1083 | struct snd_soc_dai_link *dai_link = NULL; | |
1084 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1085 | struct snd_soc_pcm_runtime *rtd; | |
1086 | const char *temp, *name; | |
1087 | int ret = 0; | |
1088 | ||
1089 | if (!dailess) { | |
1090 | dai_link = &card->dai_link[num]; | |
1091 | rtd = &card->rtd[num]; | |
1092 | name = dai_link->name; | |
1093 | } else { | |
1094 | aux_dev = &card->aux_dev[num]; | |
1095 | rtd = &card->rtd_aux[num]; | |
1096 | name = aux_dev->name; | |
1097 | } | |
0962bb21 | 1098 | rtd->card = card; |
589c3563 | 1099 | |
4b1cfcb4 MB |
1100 | /* Make sure all DAPM widgets are instantiated */ |
1101 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1102 | ||
589c3563 JN |
1103 | /* machine controls, routes and widgets are not prefixed */ |
1104 | temp = codec->name_prefix; | |
1105 | codec->name_prefix = NULL; | |
1106 | ||
1107 | /* do machine specific initialization */ | |
1108 | if (!dailess && dai_link->init) | |
1109 | ret = dai_link->init(rtd); | |
1110 | else if (dailess && aux_dev->init) | |
1111 | ret = aux_dev->init(&codec->dapm); | |
1112 | if (ret < 0) { | |
1113 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1114 | return ret; | |
1115 | } | |
1116 | codec->name_prefix = temp; | |
1117 | ||
589c3563 JN |
1118 | /* register the rtd device */ |
1119 | rtd->codec = codec; | |
36ae1a96 MB |
1120 | |
1121 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
1122 | if (!rtd->dev) | |
1123 | return -ENOMEM; | |
1124 | device_initialize(rtd->dev); | |
1125 | rtd->dev->parent = card->dev; | |
1126 | rtd->dev->release = rtd_release; | |
1127 | rtd->dev->init_name = name; | |
1128 | dev_set_drvdata(rtd->dev, rtd); | |
b8c0dab9 | 1129 | mutex_init(&rtd->pcm_mutex); |
36ae1a96 | 1130 | ret = device_add(rtd->dev); |
589c3563 JN |
1131 | if (ret < 0) { |
1132 | dev_err(card->dev, | |
1133 | "asoc: failed to register runtime device: %d\n", ret); | |
1134 | return ret; | |
1135 | } | |
1136 | rtd->dev_registered = 1; | |
1137 | ||
1138 | /* add DAPM sysfs entries for this codec */ | |
36ae1a96 | 1139 | ret = snd_soc_dapm_sys_add(rtd->dev); |
589c3563 JN |
1140 | if (ret < 0) |
1141 | dev_err(codec->dev, | |
1142 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1143 | ret); | |
1144 | ||
1145 | /* add codec sysfs entries */ | |
36ae1a96 | 1146 | ret = device_create_file(rtd->dev, &dev_attr_codec_reg); |
589c3563 JN |
1147 | if (ret < 0) |
1148 | dev_err(codec->dev, | |
1149 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1150 | ||
1151 | return 0; | |
1152 | } | |
1153 | ||
0168bf0d | 1154 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1155 | { |
1156 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1157 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1158 | struct snd_soc_codec *codec = rtd->codec; | |
1159 | struct snd_soc_platform *platform = rtd->platform; | |
1160 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1161 | int ret; | |
1162 | ||
0168bf0d LG |
1163 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1164 | card->name, num, order); | |
f0fba2ad LG |
1165 | |
1166 | /* config components */ | |
1167 | codec_dai->codec = codec; | |
f0fba2ad | 1168 | cpu_dai->platform = platform; |
f0fba2ad LG |
1169 | codec_dai->card = card; |
1170 | cpu_dai->card = card; | |
1171 | ||
1172 | /* set default power off timeout */ | |
1173 | rtd->pmdown_time = pmdown_time; | |
1174 | ||
1175 | /* probe the cpu_dai */ | |
0168bf0d LG |
1176 | if (!cpu_dai->probed && |
1177 | cpu_dai->driver->probe_order == order) { | |
61b61e3c LG |
1178 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1179 | return -ENODEV; | |
1180 | ||
f0fba2ad LG |
1181 | if (cpu_dai->driver->probe) { |
1182 | ret = cpu_dai->driver->probe(cpu_dai); | |
1183 | if (ret < 0) { | |
1184 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1185 | cpu_dai->name); | |
61b61e3c | 1186 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1187 | return ret; |
1188 | } | |
1189 | } | |
1190 | cpu_dai->probed = 1; | |
1c8371d6 | 1191 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1192 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1193 | } |
1194 | ||
f0fba2ad | 1195 | /* probe the CODEC */ |
0168bf0d LG |
1196 | if (!codec->probed && |
1197 | codec->driver->probe_order == order) { | |
589c3563 JN |
1198 | ret = soc_probe_codec(card, codec); |
1199 | if (ret < 0) | |
1200 | return ret; | |
db2a4165 FM |
1201 | } |
1202 | ||
f0fba2ad | 1203 | /* probe the platform */ |
0168bf0d LG |
1204 | if (!platform->probed && |
1205 | platform->driver->probe_order == order) { | |
956245e9 LG |
1206 | ret = soc_probe_platform(card, platform); |
1207 | if (ret < 0) | |
1208 | return ret; | |
f0fba2ad | 1209 | } |
6ed25978 | 1210 | |
f0fba2ad | 1211 | /* probe the CODEC DAI */ |
0168bf0d | 1212 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1213 | if (codec_dai->driver->probe) { |
1214 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1215 | if (ret < 0) { |
f0fba2ad LG |
1216 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1217 | codec_dai->name); | |
1218 | return ret; | |
fe3e78e0 MB |
1219 | } |
1220 | } | |
f0fba2ad | 1221 | |
1c8371d6 | 1222 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1223 | codec_dai->probed = 1; |
1224 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1225 | } |
1226 | ||
0168bf0d LG |
1227 | /* complete DAI probe during last probe */ |
1228 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1229 | return 0; | |
1230 | ||
589c3563 JN |
1231 | ret = soc_post_component_init(card, codec, num, 0); |
1232 | if (ret) | |
f0fba2ad | 1233 | return ret; |
fe3e78e0 | 1234 | |
36ae1a96 | 1235 | ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); |
f0fba2ad LG |
1236 | if (ret < 0) |
1237 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1238 | ||
f0fba2ad LG |
1239 | /* create the pcm */ |
1240 | ret = soc_new_pcm(rtd, num); | |
1241 | if (ret < 0) { | |
1242 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1243 | return ret; | |
1244 | } | |
1245 | ||
1246 | /* add platform data for AC97 devices */ | |
1247 | if (rtd->codec_dai->driver->ac97_control) | |
1248 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
fe3e78e0 | 1253 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1254 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1255 | { | |
1256 | int ret; | |
1257 | ||
fe3e78e0 MB |
1258 | /* Only instantiate AC97 if not already done by the adaptor |
1259 | * for the generic AC97 subsystem. | |
1260 | */ | |
f0fba2ad | 1261 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1262 | /* |
1263 | * It is possible that the AC97 device is already registered to | |
1264 | * the device subsystem. This happens when the device is created | |
1265 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1266 | * is the generic AC97 glue but others migh emerge. | |
1267 | * | |
1268 | * In those cases we don't try to register the device again. | |
1269 | */ | |
1270 | if (!rtd->codec->ac97_created) | |
1271 | return 0; | |
f0fba2ad LG |
1272 | |
1273 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1274 | if (ret < 0) { |
1275 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1276 | return ret; |
fe3e78e0 | 1277 | } |
f0fba2ad LG |
1278 | |
1279 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1280 | } |
f0fba2ad LG |
1281 | return 0; |
1282 | } | |
1283 | ||
1284 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1285 | { | |
1286 | if (codec->ac97_registered) { | |
1287 | soc_ac97_dev_unregister(codec); | |
1288 | codec->ac97_registered = 0; | |
1289 | } | |
1290 | } | |
fe3e78e0 MB |
1291 | #endif |
1292 | ||
2eea392d JN |
1293 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1294 | { | |
1295 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1296 | struct snd_soc_codec *codec; |
676ad98a | 1297 | int ret = -ENODEV; |
2eea392d JN |
1298 | |
1299 | /* find CODEC from registered CODECs*/ | |
1300 | list_for_each_entry(codec, &codec_list, list) { | |
1301 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1302 | if (codec->probed) { | |
1303 | dev_err(codec->dev, | |
1304 | "asoc: codec already probed"); | |
1305 | ret = -EBUSY; | |
1306 | goto out; | |
1307 | } | |
676ad98a | 1308 | goto found; |
2eea392d JN |
1309 | } |
1310 | } | |
676ad98a JN |
1311 | /* codec not found */ |
1312 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1313 | goto out; | |
2eea392d | 1314 | |
676ad98a | 1315 | found: |
589c3563 | 1316 | ret = soc_probe_codec(card, codec); |
2eea392d | 1317 | if (ret < 0) |
589c3563 | 1318 | return ret; |
2eea392d | 1319 | |
589c3563 | 1320 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1321 | |
1322 | out: | |
1323 | return ret; | |
1324 | } | |
1325 | ||
1326 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1327 | { | |
1328 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1329 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1330 | |
1331 | /* unregister the rtd device */ | |
1332 | if (rtd->dev_registered) { | |
36ae1a96 MB |
1333 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
1334 | device_del(rtd->dev); | |
2eea392d JN |
1335 | rtd->dev_registered = 0; |
1336 | } | |
1337 | ||
589c3563 JN |
1338 | if (codec && codec->probed) |
1339 | soc_remove_codec(codec); | |
2eea392d JN |
1340 | } |
1341 | ||
fdf0f54d DP |
1342 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1343 | enum snd_soc_compress_type compress_type) | |
1344 | { | |
1345 | int ret; | |
1346 | ||
1347 | if (codec->cache_init) | |
1348 | return 0; | |
1349 | ||
1350 | /* override the compress_type if necessary */ | |
1351 | if (compress_type && codec->compress_type != compress_type) | |
1352 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1353 | ret = snd_soc_cache_init(codec); |
1354 | if (ret < 0) { | |
1355 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1356 | ret); | |
1357 | return ret; | |
1358 | } | |
1359 | codec->cache_init = 1; | |
1360 | return 0; | |
1361 | } | |
1362 | ||
f0fba2ad LG |
1363 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1364 | { | |
fdf0f54d DP |
1365 | struct snd_soc_codec *codec; |
1366 | struct snd_soc_codec_conf *codec_conf; | |
1367 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1368 | struct snd_soc_dai_link *dai_link; |
0168bf0d | 1369 | int ret, i, order; |
fe3e78e0 | 1370 | |
f0fba2ad | 1371 | mutex_lock(&card->mutex); |
dbe21408 | 1372 | |
f0fba2ad LG |
1373 | if (card->instantiated) { |
1374 | mutex_unlock(&card->mutex); | |
1375 | return; | |
1376 | } | |
fe3e78e0 | 1377 | |
f0fba2ad LG |
1378 | /* bind DAIs */ |
1379 | for (i = 0; i < card->num_links; i++) | |
1380 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1381 | |
f0fba2ad LG |
1382 | /* bind completed ? */ |
1383 | if (card->num_rtd != card->num_links) { | |
1384 | mutex_unlock(&card->mutex); | |
1385 | return; | |
1386 | } | |
435c5e25 | 1387 | |
fdf0f54d DP |
1388 | /* initialize the register cache for each available codec */ |
1389 | list_for_each_entry(codec, &codec_list, list) { | |
1390 | if (codec->cache_init) | |
1391 | continue; | |
861f2faf DP |
1392 | /* by default we don't override the compress_type */ |
1393 | compress_type = 0; | |
fdf0f54d DP |
1394 | /* check to see if we need to override the compress_type */ |
1395 | for (i = 0; i < card->num_configs; ++i) { | |
1396 | codec_conf = &card->codec_conf[i]; | |
1397 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1398 | compress_type = codec_conf->compress_type; | |
1399 | if (compress_type && compress_type | |
1400 | != codec->compress_type) | |
1401 | break; | |
1402 | } | |
1403 | } | |
fdf0f54d DP |
1404 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1405 | if (ret < 0) { | |
1406 | mutex_unlock(&card->mutex); | |
1407 | return; | |
1408 | } | |
1409 | } | |
1410 | ||
f0fba2ad LG |
1411 | /* card bind complete so register a sound card */ |
1412 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1413 | card->owner, 0, &card->snd_card); | |
1414 | if (ret < 0) { | |
1415 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1416 | card->name); | |
1417 | mutex_unlock(&card->mutex); | |
1418 | return; | |
1419 | } | |
1420 | card->snd_card->dev = card->dev; | |
1421 | ||
e37a4970 MB |
1422 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1423 | card->dapm.dev = card->dev; | |
1424 | card->dapm.card = card; | |
1425 | list_add(&card->dapm.list, &card->dapm_list); | |
1426 | ||
d5d1e0be LPC |
1427 | #ifdef CONFIG_DEBUG_FS |
1428 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1429 | #endif | |
1430 | ||
88ee1c61 | 1431 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1432 | /* deferred resume work */ |
1433 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1434 | #endif | |
db2a4165 | 1435 | |
9a841ebb MB |
1436 | if (card->dapm_widgets) |
1437 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1438 | card->num_dapm_widgets); | |
1439 | ||
f0fba2ad LG |
1440 | /* initialise the sound card only once */ |
1441 | if (card->probe) { | |
e7361ec4 | 1442 | ret = card->probe(card); |
f0fba2ad LG |
1443 | if (ret < 0) |
1444 | goto card_probe_error; | |
1445 | } | |
fe3e78e0 | 1446 | |
0168bf0d LG |
1447 | /* early DAI link probe */ |
1448 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1449 | order++) { | |
1450 | for (i = 0; i < card->num_links; i++) { | |
1451 | ret = soc_probe_dai_link(card, i, order); | |
1452 | if (ret < 0) { | |
1453 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1454 | card->name, ret); |
0168bf0d LG |
1455 | goto probe_dai_err; |
1456 | } | |
f0fba2ad LG |
1457 | } |
1458 | } | |
db2a4165 | 1459 | |
2eea392d JN |
1460 | for (i = 0; i < card->num_aux_devs; i++) { |
1461 | ret = soc_probe_aux_dev(card, i); | |
1462 | if (ret < 0) { | |
1463 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1464 | card->name, ret); | |
1465 | goto probe_aux_dev_err; | |
1466 | } | |
1467 | } | |
1468 | ||
b7af1daf | 1469 | if (card->controls) |
022658be | 1470 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1471 | |
b8ad29de MB |
1472 | if (card->dapm_routes) |
1473 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1474 | card->num_dapm_routes); | |
1475 | ||
b90d2f90 MB |
1476 | snd_soc_dapm_new_widgets(&card->dapm); |
1477 | ||
75d9ac46 MB |
1478 | for (i = 0; i < card->num_links; i++) { |
1479 | dai_link = &card->dai_link[i]; | |
1480 | ||
1481 | if (dai_link->dai_fmt) { | |
1482 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, | |
1483 | dai_link->dai_fmt); | |
1484 | if (ret != 0) | |
1485 | dev_warn(card->rtd[i].codec_dai->dev, | |
1486 | "Failed to set DAI format: %d\n", | |
1487 | ret); | |
1488 | ||
1489 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
1490 | dai_link->dai_fmt); | |
1491 | if (ret != 0) | |
1492 | dev_warn(card->rtd[i].cpu_dai->dev, | |
1493 | "Failed to set DAI format: %d\n", | |
1494 | ret); | |
1495 | } | |
1496 | } | |
1497 | ||
f0fba2ad | 1498 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1499 | "%s", card->name); |
22de71ba LG |
1500 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1501 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1502 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1503 | "%s", card->driver_name ? card->driver_name : card->name); | |
1504 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1505 | switch (card->snd_card->driver[i]) { | |
1506 | case '_': | |
1507 | case '-': | |
1508 | case '\0': | |
1509 | break; | |
1510 | default: | |
1511 | if (!isalnum(card->snd_card->driver[i])) | |
1512 | card->snd_card->driver[i] = '_'; | |
1513 | break; | |
1514 | } | |
1515 | } | |
f0fba2ad | 1516 | |
28e9ad92 MB |
1517 | if (card->late_probe) { |
1518 | ret = card->late_probe(card); | |
1519 | if (ret < 0) { | |
1520 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1521 | card->name, ret); | |
1522 | goto probe_aux_dev_err; | |
1523 | } | |
1524 | } | |
1525 | ||
2dc00213 MB |
1526 | snd_soc_dapm_new_widgets(&card->dapm); |
1527 | ||
1633281b | 1528 | if (card->fully_routed) |
b05d8dc1 | 1529 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1530 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1531 | ||
f0fba2ad LG |
1532 | ret = snd_card_register(card->snd_card); |
1533 | if (ret < 0) { | |
1534 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1535 | goto probe_aux_dev_err; |
db2a4165 FM |
1536 | } |
1537 | ||
f0fba2ad LG |
1538 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1539 | /* register any AC97 codecs */ | |
1540 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1541 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1542 | if (ret < 0) { | |
1543 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1544 | while (--i >= 0) | |
7d8316df | 1545 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1546 | goto probe_aux_dev_err; |
f0fba2ad | 1547 | } |
6b3ed785 | 1548 | } |
f0fba2ad LG |
1549 | #endif |
1550 | ||
1551 | card->instantiated = 1; | |
4f4c0072 | 1552 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad LG |
1553 | mutex_unlock(&card->mutex); |
1554 | return; | |
1555 | ||
2eea392d JN |
1556 | probe_aux_dev_err: |
1557 | for (i = 0; i < card->num_aux_devs; i++) | |
1558 | soc_remove_aux_dev(card, i); | |
1559 | ||
f0fba2ad | 1560 | probe_dai_err: |
0671fd8e | 1561 | soc_remove_dai_links(card); |
f0fba2ad LG |
1562 | |
1563 | card_probe_error: | |
87506549 | 1564 | if (card->remove) |
e7361ec4 | 1565 | card->remove(card); |
f0fba2ad LG |
1566 | |
1567 | snd_card_free(card->snd_card); | |
1568 | ||
1569 | mutex_unlock(&card->mutex); | |
435c5e25 | 1570 | } |
db2a4165 | 1571 | |
435c5e25 | 1572 | /* |
421f91d2 | 1573 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1574 | * client_mutex. |
1575 | */ | |
1576 | static void snd_soc_instantiate_cards(void) | |
1577 | { | |
1578 | struct snd_soc_card *card; | |
1579 | list_for_each_entry(card, &card_list, list) | |
1580 | snd_soc_instantiate_card(card); | |
1581 | } | |
1582 | ||
1583 | /* probes a new socdev */ | |
1584 | static int soc_probe(struct platform_device *pdev) | |
1585 | { | |
f0fba2ad | 1586 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1587 | int ret = 0; |
435c5e25 | 1588 | |
70a7ca34 VK |
1589 | /* |
1590 | * no card, so machine driver should be registering card | |
1591 | * we should not be here in that case so ret error | |
1592 | */ | |
1593 | if (!card) | |
1594 | return -EINVAL; | |
1595 | ||
435c5e25 MB |
1596 | /* Bodge while we unpick instantiation */ |
1597 | card->dev = &pdev->dev; | |
f0fba2ad | 1598 | |
435c5e25 MB |
1599 | ret = snd_soc_register_card(card); |
1600 | if (ret != 0) { | |
1601 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1602 | return ret; | |
1603 | } | |
1604 | ||
1605 | return 0; | |
db2a4165 FM |
1606 | } |
1607 | ||
b0e26485 | 1608 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1609 | { |
1610 | int i; | |
db2a4165 | 1611 | |
b0e26485 VK |
1612 | /* make sure any delayed work runs */ |
1613 | for (i = 0; i < card->num_rtd; i++) { | |
1614 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1615 | flush_delayed_work_sync(&rtd->delayed_work); | |
1616 | } | |
914dc182 | 1617 | |
b0e26485 VK |
1618 | /* remove auxiliary devices */ |
1619 | for (i = 0; i < card->num_aux_devs; i++) | |
1620 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1621 | |
b0e26485 | 1622 | /* remove and free each DAI */ |
0671fd8e | 1623 | soc_remove_dai_links(card); |
2eea392d | 1624 | |
b0e26485 | 1625 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1626 | |
b0e26485 VK |
1627 | /* remove the card */ |
1628 | if (card->remove) | |
e7361ec4 | 1629 | card->remove(card); |
a6052154 | 1630 | |
0aaae527 LPC |
1631 | snd_soc_dapm_free(&card->dapm); |
1632 | ||
b0e26485 VK |
1633 | kfree(card->rtd); |
1634 | snd_card_free(card->snd_card); | |
1635 | return 0; | |
1636 | ||
1637 | } | |
1638 | ||
1639 | /* removes a socdev */ | |
1640 | static int soc_remove(struct platform_device *pdev) | |
1641 | { | |
1642 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1643 | |
c5af3a2e | 1644 | snd_soc_unregister_card(card); |
db2a4165 FM |
1645 | return 0; |
1646 | } | |
1647 | ||
6f8ab4ac | 1648 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1649 | { |
6f8ab4ac | 1650 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1651 | int i; |
51737470 MB |
1652 | |
1653 | if (!card->instantiated) | |
416356fc | 1654 | return 0; |
51737470 MB |
1655 | |
1656 | /* Flush out pmdown_time work - we actually do want to run it | |
1657 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1658 | for (i = 0; i < card->num_rtd; i++) { |
1659 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1660 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1661 | } |
51737470 | 1662 | |
f0fba2ad | 1663 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1664 | |
1665 | return 0; | |
51737470 | 1666 | } |
6f8ab4ac | 1667 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1668 | |
6f8ab4ac | 1669 | const struct dev_pm_ops snd_soc_pm_ops = { |
5aa44b13 | 1670 | SET_SYSTEM_SLEEP_PM_OPS(snd_soc_suspend, snd_soc_resume) |
6f8ab4ac | 1671 | .poweroff = snd_soc_poweroff, |
416356fc | 1672 | }; |
deb2607e | 1673 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1674 | |
db2a4165 FM |
1675 | /* ASoC platform driver */ |
1676 | static struct platform_driver soc_driver = { | |
1677 | .driver = { | |
1678 | .name = "soc-audio", | |
8b45a209 | 1679 | .owner = THIS_MODULE, |
6f8ab4ac | 1680 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1681 | }, |
1682 | .probe = soc_probe, | |
1683 | .remove = soc_remove, | |
db2a4165 FM |
1684 | }; |
1685 | ||
096e49d5 MB |
1686 | /** |
1687 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1688 | * | |
1689 | * @codec: CODEC to query. | |
1690 | * @reg: Register to query. | |
1691 | * | |
1692 | * Boolean function indiciating if a CODEC register is volatile. | |
1693 | */ | |
181e055e MB |
1694 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1695 | unsigned int reg) | |
096e49d5 | 1696 | { |
1500b7b5 DP |
1697 | if (codec->volatile_register) |
1698 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1699 | else |
1700 | return 0; | |
1701 | } | |
1702 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1703 | ||
239c9706 DP |
1704 | /** |
1705 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1706 | * | |
1707 | * @codec: CODEC to query. | |
1708 | * @reg: Register to query. | |
1709 | * | |
1710 | * Boolean function indicating if a CODEC register is readable. | |
1711 | */ | |
1712 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1713 | unsigned int reg) | |
1714 | { | |
1715 | if (codec->readable_register) | |
1716 | return codec->readable_register(codec, reg); | |
1717 | else | |
63fa0a28 | 1718 | return 1; |
239c9706 DP |
1719 | } |
1720 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1721 | ||
1722 | /** | |
1723 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1724 | * | |
1725 | * @codec: CODEC to query. | |
1726 | * @reg: Register to query. | |
1727 | * | |
1728 | * Boolean function indicating if a CODEC register is writable. | |
1729 | */ | |
1730 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1731 | unsigned int reg) | |
1732 | { | |
1733 | if (codec->writable_register) | |
1734 | return codec->writable_register(codec, reg); | |
1735 | else | |
63fa0a28 | 1736 | return 1; |
239c9706 DP |
1737 | } |
1738 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1739 | ||
f1442bc1 LG |
1740 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1741 | unsigned int reg) | |
1742 | { | |
1743 | unsigned int ret; | |
1744 | ||
1745 | if (!platform->driver->read) { | |
1746 | dev_err(platform->dev, "platform has no read back\n"); | |
1747 | return -1; | |
1748 | } | |
1749 | ||
1750 | ret = platform->driver->read(platform, reg); | |
1751 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1752 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1753 | |
1754 | return ret; | |
1755 | } | |
1756 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1757 | ||
1758 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1759 | unsigned int reg, unsigned int val) | |
1760 | { | |
1761 | if (!platform->driver->write) { | |
1762 | dev_err(platform->dev, "platform has no write back\n"); | |
1763 | return -1; | |
1764 | } | |
1765 | ||
1766 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1767 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1768 | return platform->driver->write(platform, reg, val); |
1769 | } | |
1770 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1771 | ||
db2a4165 FM |
1772 | /** |
1773 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1774 | * @codec: audio codec | |
1775 | * @ops: AC97 bus operations | |
1776 | * @num: AC97 codec number | |
1777 | * | |
1778 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1779 | */ | |
1780 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1781 | struct snd_ac97_bus_ops *ops, int num) | |
1782 | { | |
1783 | mutex_lock(&codec->mutex); | |
1784 | ||
1785 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1786 | if (codec->ac97 == NULL) { | |
1787 | mutex_unlock(&codec->mutex); | |
1788 | return -ENOMEM; | |
1789 | } | |
1790 | ||
1791 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1792 | if (codec->ac97->bus == NULL) { | |
1793 | kfree(codec->ac97); | |
1794 | codec->ac97 = NULL; | |
1795 | mutex_unlock(&codec->mutex); | |
1796 | return -ENOMEM; | |
1797 | } | |
1798 | ||
1799 | codec->ac97->bus->ops = ops; | |
1800 | codec->ac97->num = num; | |
0562f788 MW |
1801 | |
1802 | /* | |
1803 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1804 | * device will be registered with the device subsystem later on. | |
1805 | */ | |
1806 | codec->ac97_created = 1; | |
1807 | ||
db2a4165 FM |
1808 | mutex_unlock(&codec->mutex); |
1809 | return 0; | |
1810 | } | |
1811 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1812 | ||
1813 | /** | |
1814 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1815 | * @codec: audio codec | |
1816 | * | |
1817 | * Frees AC97 codec device resources. | |
1818 | */ | |
1819 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1820 | { | |
1821 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1822 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1823 | soc_unregister_ac97_dai_link(codec); | |
1824 | #endif | |
db2a4165 FM |
1825 | kfree(codec->ac97->bus); |
1826 | kfree(codec->ac97); | |
1827 | codec->ac97 = NULL; | |
0562f788 | 1828 | codec->ac97_created = 0; |
db2a4165 FM |
1829 | mutex_unlock(&codec->mutex); |
1830 | } | |
1831 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1832 | ||
c3753707 MB |
1833 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1834 | { | |
1835 | unsigned int ret; | |
1836 | ||
c3acec26 | 1837 | ret = codec->read(codec, reg); |
c3753707 | 1838 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1839 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1840 | |
1841 | return ret; | |
1842 | } | |
1843 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1844 | ||
1845 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1846 | unsigned int reg, unsigned int val) | |
1847 | { | |
1848 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 1849 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 1850 | return codec->write(codec, reg, val); |
c3753707 MB |
1851 | } |
1852 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1853 | ||
5fb609d4 DP |
1854 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
1855 | unsigned int reg, const void *data, size_t len) | |
1856 | { | |
1857 | return codec->bulk_write_raw(codec, reg, data, len); | |
1858 | } | |
1859 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
1860 | ||
db2a4165 FM |
1861 | /** |
1862 | * snd_soc_update_bits - update codec register bits | |
1863 | * @codec: audio codec | |
1864 | * @reg: codec register | |
1865 | * @mask: register mask | |
1866 | * @value: new value | |
1867 | * | |
1868 | * Writes new register value. | |
1869 | * | |
180c329d | 1870 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
1871 | */ |
1872 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1873 | unsigned int mask, unsigned int value) |
db2a4165 | 1874 | { |
8a713da8 | 1875 | bool change; |
46f5822f | 1876 | unsigned int old, new; |
180c329d TT |
1877 | int ret; |
1878 | ||
8a713da8 MB |
1879 | if (codec->using_regmap) { |
1880 | ret = regmap_update_bits_check(codec->control_data, reg, | |
1881 | mask, value, &change); | |
1882 | } else { | |
1883 | ret = snd_soc_read(codec, reg); | |
180c329d TT |
1884 | if (ret < 0) |
1885 | return ret; | |
8a713da8 MB |
1886 | |
1887 | old = ret; | |
1888 | new = (old & ~mask) | (value & mask); | |
1889 | change = old != new; | |
1890 | if (change) | |
1891 | ret = snd_soc_write(codec, reg, new); | |
180c329d | 1892 | } |
db2a4165 | 1893 | |
8a713da8 MB |
1894 | if (ret < 0) |
1895 | return ret; | |
1896 | ||
db2a4165 FM |
1897 | return change; |
1898 | } | |
1899 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1900 | ||
6c508c62 EN |
1901 | /** |
1902 | * snd_soc_update_bits_locked - update codec register bits | |
1903 | * @codec: audio codec | |
1904 | * @reg: codec register | |
1905 | * @mask: register mask | |
1906 | * @value: new value | |
1907 | * | |
1908 | * Writes new register value, and takes the codec mutex. | |
1909 | * | |
1910 | * Returns 1 for change else 0. | |
1911 | */ | |
dd1b3d53 MB |
1912 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1913 | unsigned short reg, unsigned int mask, | |
1914 | unsigned int value) | |
6c508c62 EN |
1915 | { |
1916 | int change; | |
1917 | ||
1918 | mutex_lock(&codec->mutex); | |
1919 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1920 | mutex_unlock(&codec->mutex); | |
1921 | ||
1922 | return change; | |
1923 | } | |
dd1b3d53 | 1924 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1925 | |
db2a4165 FM |
1926 | /** |
1927 | * snd_soc_test_bits - test register for change | |
1928 | * @codec: audio codec | |
1929 | * @reg: codec register | |
1930 | * @mask: register mask | |
1931 | * @value: new value | |
1932 | * | |
1933 | * Tests a register with a new value and checks if the new value is | |
1934 | * different from the old value. | |
1935 | * | |
1936 | * Returns 1 for change else 0. | |
1937 | */ | |
1938 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1939 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1940 | { |
1941 | int change; | |
46f5822f | 1942 | unsigned int old, new; |
db2a4165 | 1943 | |
db2a4165 FM |
1944 | old = snd_soc_read(codec, reg); |
1945 | new = (old & ~mask) | value; | |
1946 | change = old != new; | |
db2a4165 FM |
1947 | |
1948 | return change; | |
1949 | } | |
1950 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1951 | ||
db2a4165 FM |
1952 | /** |
1953 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1954 | * @substream: the pcm substream | |
1955 | * @hw: the hardware parameters | |
1956 | * | |
1957 | * Sets the substream runtime hardware parameters. | |
1958 | */ | |
1959 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1960 | const struct snd_pcm_hardware *hw) | |
1961 | { | |
1962 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1963 | runtime->hw.info = hw->info; | |
1964 | runtime->hw.formats = hw->formats; | |
1965 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1966 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1967 | runtime->hw.periods_min = hw->periods_min; | |
1968 | runtime->hw.periods_max = hw->periods_max; | |
1969 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1970 | runtime->hw.fifo_size = hw->fifo_size; | |
1971 | return 0; | |
1972 | } | |
1973 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1974 | ||
1975 | /** | |
1976 | * snd_soc_cnew - create new control | |
1977 | * @_template: control template | |
1978 | * @data: control private data | |
ac11a2b3 | 1979 | * @long_name: control long name |
efb7ac3f | 1980 | * @prefix: control name prefix |
db2a4165 FM |
1981 | * |
1982 | * Create a new mixer control from a template control. | |
1983 | * | |
1984 | * Returns 0 for success, else error. | |
1985 | */ | |
1986 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
1987 | void *data, char *long_name, |
1988 | const char *prefix) | |
db2a4165 FM |
1989 | { |
1990 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1991 | struct snd_kcontrol *kcontrol; |
1992 | char *name = NULL; | |
1993 | int name_len; | |
db2a4165 FM |
1994 | |
1995 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1996 | template.index = 0; |
1997 | ||
efb7ac3f MB |
1998 | if (!long_name) |
1999 | long_name = template.name; | |
2000 | ||
2001 | if (prefix) { | |
2002 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 2003 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
2004 | if (!name) |
2005 | return NULL; | |
2006 | ||
2007 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2008 | ||
2009 | template.name = name; | |
2010 | } else { | |
2011 | template.name = long_name; | |
2012 | } | |
2013 | ||
2014 | kcontrol = snd_ctl_new1(&template, data); | |
2015 | ||
2016 | kfree(name); | |
2017 | ||
2018 | return kcontrol; | |
db2a4165 FM |
2019 | } |
2020 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2021 | ||
022658be LG |
2022 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2023 | const struct snd_kcontrol_new *controls, int num_controls, | |
2024 | const char *prefix, void *data) | |
2025 | { | |
2026 | int err, i; | |
2027 | ||
2028 | for (i = 0; i < num_controls; i++) { | |
2029 | const struct snd_kcontrol_new *control = &controls[i]; | |
2030 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2031 | control->name, prefix)); | |
2032 | if (err < 0) { | |
2033 | dev_err(dev, "Failed to add %s: %d\n", control->name, err); | |
2034 | return err; | |
2035 | } | |
2036 | } | |
2037 | ||
2038 | return 0; | |
2039 | } | |
2040 | ||
3e8e1952 | 2041 | /** |
022658be LG |
2042 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2043 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2044 | * duplicating this code. |
2045 | * | |
2046 | * @codec: codec to add controls to | |
2047 | * @controls: array of controls to add | |
2048 | * @num_controls: number of elements in the array | |
2049 | * | |
2050 | * Return 0 for success, else error. | |
2051 | */ | |
022658be | 2052 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
3e8e1952 IM |
2053 | const struct snd_kcontrol_new *controls, int num_controls) |
2054 | { | |
f0fba2ad | 2055 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 | 2056 | |
022658be LG |
2057 | return snd_soc_add_controls(card, codec->dev, controls, num_controls, |
2058 | codec->name_prefix, codec); | |
3e8e1952 | 2059 | } |
022658be | 2060 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2061 | |
a491a5c8 LG |
2062 | /** |
2063 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2064 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2065 | * |
2066 | * @platform: platform to add controls to | |
2067 | * @controls: array of controls to add | |
2068 | * @num_controls: number of elements in the array | |
2069 | * | |
2070 | * Return 0 for success, else error. | |
2071 | */ | |
2072 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2073 | const struct snd_kcontrol_new *controls, int num_controls) | |
2074 | { | |
2075 | struct snd_card *card = platform->card->snd_card; | |
a491a5c8 | 2076 | |
022658be LG |
2077 | return snd_soc_add_controls(card, platform->dev, controls, num_controls, |
2078 | NULL, platform); | |
a491a5c8 LG |
2079 | } |
2080 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2081 | ||
022658be LG |
2082 | /** |
2083 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2084 | * Convenience function to add a list of controls. | |
2085 | * | |
2086 | * @soc_card: SoC card to add controls to | |
2087 | * @controls: array of controls to add | |
2088 | * @num_controls: number of elements in the array | |
2089 | * | |
2090 | * Return 0 for success, else error. | |
2091 | */ | |
2092 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2093 | const struct snd_kcontrol_new *controls, int num_controls) | |
2094 | { | |
2095 | struct snd_card *card = soc_card->snd_card; | |
2096 | ||
2097 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2098 | NULL, soc_card); | |
2099 | } | |
2100 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2101 | ||
2102 | /** | |
2103 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2104 | * Convienience function to add a list of controls. | |
2105 | * | |
2106 | * @dai: DAI to add controls to | |
2107 | * @controls: array of controls to add | |
2108 | * @num_controls: number of elements in the array | |
2109 | * | |
2110 | * Return 0 for success, else error. | |
2111 | */ | |
2112 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2113 | const struct snd_kcontrol_new *controls, int num_controls) | |
2114 | { | |
2115 | struct snd_card *card = dai->card->snd_card; | |
2116 | ||
2117 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2118 | NULL, dai); | |
2119 | } | |
2120 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2121 | ||
db2a4165 FM |
2122 | /** |
2123 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2124 | * @kcontrol: mixer control | |
2125 | * @uinfo: control element information | |
2126 | * | |
2127 | * Callback to provide information about a double enumerated | |
2128 | * mixer control. | |
2129 | * | |
2130 | * Returns 0 for success. | |
2131 | */ | |
2132 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2133 | struct snd_ctl_elem_info *uinfo) | |
2134 | { | |
2135 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2136 | ||
2137 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2138 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2139 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2140 | |
f8ba0b7b JS |
2141 | if (uinfo->value.enumerated.item > e->max - 1) |
2142 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2143 | strcpy(uinfo->value.enumerated.name, |
2144 | e->texts[uinfo->value.enumerated.item]); | |
2145 | return 0; | |
2146 | } | |
2147 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2148 | ||
2149 | /** | |
2150 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2151 | * @kcontrol: mixer control | |
ac11a2b3 | 2152 | * @ucontrol: control element information |
db2a4165 FM |
2153 | * |
2154 | * Callback to get the value of a double enumerated mixer. | |
2155 | * | |
2156 | * Returns 0 for success. | |
2157 | */ | |
2158 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2159 | struct snd_ctl_elem_value *ucontrol) | |
2160 | { | |
2161 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2162 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2163 | unsigned int val, bitmask; |
db2a4165 | 2164 | |
f8ba0b7b | 2165 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2166 | ; |
2167 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2168 | ucontrol->value.enumerated.item[0] |
2169 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2170 | if (e->shift_l != e->shift_r) |
2171 | ucontrol->value.enumerated.item[1] = | |
2172 | (val >> e->shift_r) & (bitmask - 1); | |
2173 | ||
2174 | return 0; | |
2175 | } | |
2176 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2177 | ||
2178 | /** | |
2179 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2180 | * @kcontrol: mixer control | |
ac11a2b3 | 2181 | * @ucontrol: control element information |
db2a4165 FM |
2182 | * |
2183 | * Callback to set the value of a double enumerated mixer. | |
2184 | * | |
2185 | * Returns 0 for success. | |
2186 | */ | |
2187 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2188 | struct snd_ctl_elem_value *ucontrol) | |
2189 | { | |
2190 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2191 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2192 | unsigned int val; |
2193 | unsigned int mask, bitmask; | |
db2a4165 | 2194 | |
f8ba0b7b | 2195 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2196 | ; |
f8ba0b7b | 2197 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2198 | return -EINVAL; |
2199 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2200 | mask = (bitmask - 1) << e->shift_l; | |
2201 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2202 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2203 | return -EINVAL; |
2204 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2205 | mask |= (bitmask - 1) << e->shift_r; | |
2206 | } | |
2207 | ||
6c508c62 | 2208 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2209 | } |
2210 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2211 | ||
2e72f8e3 PU |
2212 | /** |
2213 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2214 | * @kcontrol: mixer control | |
2215 | * @ucontrol: control element information | |
2216 | * | |
2217 | * Callback to get the value of a double semi enumerated mixer. | |
2218 | * | |
2219 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2220 | * used for handling bitfield coded enumeration for example. | |
2221 | * | |
2222 | * Returns 0 for success. | |
2223 | */ | |
2224 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2225 | struct snd_ctl_elem_value *ucontrol) | |
2226 | { | |
2227 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2228 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2229 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2230 | |
2231 | reg_val = snd_soc_read(codec, e->reg); | |
2232 | val = (reg_val >> e->shift_l) & e->mask; | |
2233 | for (mux = 0; mux < e->max; mux++) { | |
2234 | if (val == e->values[mux]) | |
2235 | break; | |
2236 | } | |
2237 | ucontrol->value.enumerated.item[0] = mux; | |
2238 | if (e->shift_l != e->shift_r) { | |
2239 | val = (reg_val >> e->shift_r) & e->mask; | |
2240 | for (mux = 0; mux < e->max; mux++) { | |
2241 | if (val == e->values[mux]) | |
2242 | break; | |
2243 | } | |
2244 | ucontrol->value.enumerated.item[1] = mux; | |
2245 | } | |
2246 | ||
2247 | return 0; | |
2248 | } | |
2249 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2250 | ||
2251 | /** | |
2252 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2253 | * @kcontrol: mixer control | |
2254 | * @ucontrol: control element information | |
2255 | * | |
2256 | * Callback to set the value of a double semi enumerated mixer. | |
2257 | * | |
2258 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2259 | * used for handling bitfield coded enumeration for example. | |
2260 | * | |
2261 | * Returns 0 for success. | |
2262 | */ | |
2263 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2264 | struct snd_ctl_elem_value *ucontrol) | |
2265 | { | |
2266 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2267 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2268 | unsigned int val; |
2269 | unsigned int mask; | |
2e72f8e3 PU |
2270 | |
2271 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2272 | return -EINVAL; | |
2273 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2274 | mask = e->mask << e->shift_l; | |
2275 | if (e->shift_l != e->shift_r) { | |
2276 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2277 | return -EINVAL; | |
2278 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2279 | mask |= e->mask << e->shift_r; | |
2280 | } | |
2281 | ||
6c508c62 | 2282 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2283 | } |
2284 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2285 | ||
db2a4165 FM |
2286 | /** |
2287 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2288 | * @kcontrol: mixer control | |
2289 | * @uinfo: control element information | |
2290 | * | |
2291 | * Callback to provide information about an external enumerated | |
2292 | * single mixer. | |
2293 | * | |
2294 | * Returns 0 for success. | |
2295 | */ | |
2296 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2297 | struct snd_ctl_elem_info *uinfo) | |
2298 | { | |
2299 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2300 | ||
2301 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2302 | uinfo->count = 1; | |
f8ba0b7b | 2303 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2304 | |
f8ba0b7b JS |
2305 | if (uinfo->value.enumerated.item > e->max - 1) |
2306 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2307 | strcpy(uinfo->value.enumerated.name, |
2308 | e->texts[uinfo->value.enumerated.item]); | |
2309 | return 0; | |
2310 | } | |
2311 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2312 | ||
2313 | /** | |
2314 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2315 | * @kcontrol: mixer control | |
2316 | * @uinfo: control element information | |
2317 | * | |
2318 | * Callback to provide information about a single external mixer control. | |
2319 | * | |
2320 | * Returns 0 for success. | |
2321 | */ | |
2322 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2323 | struct snd_ctl_elem_info *uinfo) | |
2324 | { | |
a7a4ac86 PZ |
2325 | int max = kcontrol->private_value; |
2326 | ||
fd5dfad9 | 2327 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2328 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2329 | else | |
2330 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2331 | |
db2a4165 FM |
2332 | uinfo->count = 1; |
2333 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2334 | uinfo->value.integer.max = max; |
db2a4165 FM |
2335 | return 0; |
2336 | } | |
2337 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2338 | ||
db2a4165 FM |
2339 | /** |
2340 | * snd_soc_info_volsw - single mixer info callback | |
2341 | * @kcontrol: mixer control | |
2342 | * @uinfo: control element information | |
2343 | * | |
e8f5a103 PU |
2344 | * Callback to provide information about a single mixer control, or a double |
2345 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2346 | * |
2347 | * Returns 0 for success. | |
2348 | */ | |
2349 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2350 | struct snd_ctl_elem_info *uinfo) | |
2351 | { | |
4eaa9819 JS |
2352 | struct soc_mixer_control *mc = |
2353 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2354 | int platform_max; |
db2a4165 | 2355 | |
d11bb4a9 PU |
2356 | if (!mc->platform_max) |
2357 | mc->platform_max = mc->max; | |
2358 | platform_max = mc->platform_max; | |
2359 | ||
2360 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2361 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2362 | else | |
2363 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2364 | ||
e8f5a103 | 2365 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2366 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2367 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2368 | return 0; |
2369 | } | |
2370 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2371 | ||
2372 | /** | |
2373 | * snd_soc_get_volsw - single mixer get callback | |
2374 | * @kcontrol: mixer control | |
ac11a2b3 | 2375 | * @ucontrol: control element information |
db2a4165 | 2376 | * |
f7915d99 PU |
2377 | * Callback to get the value of a single mixer control, or a double mixer |
2378 | * control that spans 2 registers. | |
db2a4165 FM |
2379 | * |
2380 | * Returns 0 for success. | |
2381 | */ | |
2382 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2383 | struct snd_ctl_elem_value *ucontrol) | |
2384 | { | |
4eaa9819 JS |
2385 | struct soc_mixer_control *mc = |
2386 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2387 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2388 | unsigned int reg = mc->reg; |
f7915d99 | 2389 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2390 | unsigned int shift = mc->shift; |
2391 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2392 | int max = mc->max; |
815ecf8d JS |
2393 | unsigned int mask = (1 << fls(max)) - 1; |
2394 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2395 | |
2396 | ucontrol->value.integer.value[0] = | |
2397 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2398 | if (invert) |
db2a4165 | 2399 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2400 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2401 | |
2402 | if (snd_soc_volsw_is_stereo(mc)) { | |
2403 | if (reg == reg2) | |
2404 | ucontrol->value.integer.value[1] = | |
2405 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2406 | else | |
2407 | ucontrol->value.integer.value[1] = | |
2408 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2409 | if (invert) | |
db2a4165 | 2410 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2411 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2412 | } |
2413 | ||
2414 | return 0; | |
2415 | } | |
2416 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2417 | ||
2418 | /** | |
2419 | * snd_soc_put_volsw - single mixer put callback | |
2420 | * @kcontrol: mixer control | |
ac11a2b3 | 2421 | * @ucontrol: control element information |
db2a4165 | 2422 | * |
974815ba PU |
2423 | * Callback to set the value of a single mixer control, or a double mixer |
2424 | * control that spans 2 registers. | |
db2a4165 FM |
2425 | * |
2426 | * Returns 0 for success. | |
2427 | */ | |
2428 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2429 | struct snd_ctl_elem_value *ucontrol) | |
2430 | { | |
4eaa9819 JS |
2431 | struct soc_mixer_control *mc = |
2432 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2433 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2434 | unsigned int reg = mc->reg; |
974815ba | 2435 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2436 | unsigned int shift = mc->shift; |
2437 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2438 | int max = mc->max; |
815ecf8d JS |
2439 | unsigned int mask = (1 << fls(max)) - 1; |
2440 | unsigned int invert = mc->invert; | |
974815ba PU |
2441 | int err; |
2442 | bool type_2r = 0; | |
2443 | unsigned int val2 = 0; | |
2444 | unsigned int val, val_mask; | |
db2a4165 FM |
2445 | |
2446 | val = (ucontrol->value.integer.value[0] & mask); | |
2447 | if (invert) | |
a7a4ac86 | 2448 | val = max - val; |
db2a4165 FM |
2449 | val_mask = mask << shift; |
2450 | val = val << shift; | |
974815ba | 2451 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2452 | val2 = (ucontrol->value.integer.value[1] & mask); |
2453 | if (invert) | |
a7a4ac86 | 2454 | val2 = max - val2; |
974815ba PU |
2455 | if (reg == reg2) { |
2456 | val_mask |= mask << rshift; | |
2457 | val |= val2 << rshift; | |
2458 | } else { | |
2459 | val2 = val2 << shift; | |
2460 | type_2r = 1; | |
2461 | } | |
db2a4165 | 2462 | } |
6c508c62 | 2463 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2464 | if (err < 0) |
db2a4165 FM |
2465 | return err; |
2466 | ||
974815ba PU |
2467 | if (type_2r) |
2468 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2469 | ||
db2a4165 FM |
2470 | return err; |
2471 | } | |
974815ba | 2472 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2473 | |
e13ac2e9 MB |
2474 | /** |
2475 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2476 | * @kcontrol: mixer control | |
2477 | * @uinfo: control element information | |
2478 | * | |
2479 | * Callback to provide information about a signed mixer control. | |
2480 | * | |
2481 | * Returns 0 for success. | |
2482 | */ | |
2483 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2484 | struct snd_ctl_elem_info *uinfo) | |
2485 | { | |
4eaa9819 JS |
2486 | struct soc_mixer_control *mc = |
2487 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2488 | int platform_max; |
4eaa9819 | 2489 | int min = mc->min; |
e13ac2e9 | 2490 | |
d11bb4a9 PU |
2491 | if (!mc->platform_max) |
2492 | mc->platform_max = mc->max; | |
2493 | platform_max = mc->platform_max; | |
2494 | ||
e13ac2e9 MB |
2495 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2496 | uinfo->count = 2; | |
2497 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2498 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2499 | return 0; |
2500 | } | |
2501 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2502 | ||
2503 | /** | |
2504 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2505 | * @kcontrol: mixer control | |
ac11a2b3 | 2506 | * @ucontrol: control element information |
e13ac2e9 MB |
2507 | * |
2508 | * Callback to get the value of a signed mixer control. | |
2509 | * | |
2510 | * Returns 0 for success. | |
2511 | */ | |
2512 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2513 | struct snd_ctl_elem_value *ucontrol) | |
2514 | { | |
4eaa9819 JS |
2515 | struct soc_mixer_control *mc = |
2516 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2517 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2518 | unsigned int reg = mc->reg; |
4eaa9819 | 2519 | int min = mc->min; |
e13ac2e9 MB |
2520 | int val = snd_soc_read(codec, reg); |
2521 | ||
2522 | ucontrol->value.integer.value[0] = | |
2523 | ((signed char)(val & 0xff))-min; | |
2524 | ucontrol->value.integer.value[1] = | |
2525 | ((signed char)((val >> 8) & 0xff))-min; | |
2526 | return 0; | |
2527 | } | |
2528 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2529 | ||
2530 | /** | |
2531 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2532 | * @kcontrol: mixer control | |
ac11a2b3 | 2533 | * @ucontrol: control element information |
e13ac2e9 MB |
2534 | * |
2535 | * Callback to set the value of a signed mixer control. | |
2536 | * | |
2537 | * Returns 0 for success. | |
2538 | */ | |
2539 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2540 | struct snd_ctl_elem_value *ucontrol) | |
2541 | { | |
4eaa9819 JS |
2542 | struct soc_mixer_control *mc = |
2543 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2544 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2545 | unsigned int reg = mc->reg; |
4eaa9819 | 2546 | int min = mc->min; |
46f5822f | 2547 | unsigned int val; |
e13ac2e9 MB |
2548 | |
2549 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2550 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2551 | ||
6c508c62 | 2552 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2553 | } |
2554 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2555 | ||
637d3847 PU |
2556 | /** |
2557 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2558 | * | |
2559 | * @codec: where to look for the control | |
2560 | * @name: Name of the control | |
2561 | * @max: new maximum limit | |
2562 | * | |
2563 | * Return 0 for success, else error. | |
2564 | */ | |
2565 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2566 | const char *name, int max) | |
2567 | { | |
f0fba2ad | 2568 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2569 | struct snd_kcontrol *kctl; |
2570 | struct soc_mixer_control *mc; | |
2571 | int found = 0; | |
2572 | int ret = -EINVAL; | |
2573 | ||
2574 | /* Sanity check for name and max */ | |
2575 | if (unlikely(!name || max <= 0)) | |
2576 | return -EINVAL; | |
2577 | ||
2578 | list_for_each_entry(kctl, &card->controls, list) { | |
2579 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2580 | found = 1; | |
2581 | break; | |
2582 | } | |
2583 | } | |
2584 | if (found) { | |
2585 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2586 | if (max <= mc->max) { | |
d11bb4a9 | 2587 | mc->platform_max = max; |
637d3847 PU |
2588 | ret = 0; |
2589 | } | |
2590 | } | |
2591 | return ret; | |
2592 | } | |
2593 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2594 | ||
b6f4bb38 | 2595 | /** |
2596 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2597 | * mixer info callback | |
2598 | * @kcontrol: mixer control | |
2599 | * @uinfo: control element information | |
2600 | * | |
2601 | * Returns 0 for success. | |
2602 | */ | |
2603 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2604 | struct snd_ctl_elem_info *uinfo) | |
2605 | { | |
2606 | struct soc_mixer_control *mc = | |
2607 | (struct soc_mixer_control *)kcontrol->private_value; | |
2608 | int max = mc->max; | |
2609 | int min = mc->min; | |
2610 | ||
2611 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2612 | uinfo->count = 2; | |
2613 | uinfo->value.integer.min = 0; | |
2614 | uinfo->value.integer.max = max-min; | |
2615 | ||
2616 | return 0; | |
2617 | } | |
2618 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2619 | ||
2620 | /** | |
2621 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2622 | * mixer get callback | |
2623 | * @kcontrol: mixer control | |
2624 | * @uinfo: control element information | |
2625 | * | |
2626 | * Returns 0 for success. | |
2627 | */ | |
2628 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2629 | struct snd_ctl_elem_value *ucontrol) | |
2630 | { | |
2631 | struct soc_mixer_control *mc = | |
2632 | (struct soc_mixer_control *)kcontrol->private_value; | |
2633 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2634 | unsigned int mask = (1<<mc->shift)-1; | |
2635 | int min = mc->min; | |
2636 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2637 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2638 | ||
20630c7f SL |
2639 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2640 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2641 | return 0; |
2642 | } | |
2643 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2644 | ||
2645 | /** | |
2646 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2647 | * mixer put callback | |
2648 | * @kcontrol: mixer control | |
2649 | * @uinfo: control element information | |
2650 | * | |
2651 | * Returns 0 for success. | |
2652 | */ | |
2653 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2654 | struct snd_ctl_elem_value *ucontrol) | |
2655 | { | |
2656 | struct soc_mixer_control *mc = | |
2657 | (struct soc_mixer_control *)kcontrol->private_value; | |
2658 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2659 | unsigned int mask = (1<<mc->shift)-1; | |
2660 | int min = mc->min; | |
2661 | int ret; | |
2662 | unsigned int val, valr, oval, ovalr; | |
2663 | ||
2664 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2665 | val &= mask; | |
2666 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2667 | valr &= mask; | |
2668 | ||
2669 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2670 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2671 | ||
2672 | ret = 0; | |
2673 | if (oval != val) { | |
2674 | ret = snd_soc_write(codec, mc->reg, val); | |
2675 | if (ret < 0) | |
f1df5aec | 2676 | return ret; |
b6f4bb38 | 2677 | } |
2678 | if (ovalr != valr) { | |
2679 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2680 | if (ret < 0) | |
f1df5aec | 2681 | return ret; |
b6f4bb38 | 2682 | } |
2683 | ||
2684 | return 0; | |
2685 | } | |
2686 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2687 | ||
8c6529db LG |
2688 | /** |
2689 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2690 | * @dai: DAI | |
2691 | * @clk_id: DAI specific clock ID | |
2692 | * @freq: new clock frequency in Hz | |
2693 | * @dir: new clock direction - input/output. | |
2694 | * | |
2695 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2696 | */ | |
2697 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2698 | unsigned int freq, int dir) | |
2699 | { | |
f0fba2ad LG |
2700 | if (dai->driver && dai->driver->ops->set_sysclk) |
2701 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2702 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2703 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2704 | freq, dir); |
8c6529db LG |
2705 | else |
2706 | return -EINVAL; | |
2707 | } | |
2708 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2709 | ||
ec4ee52a MB |
2710 | /** |
2711 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2712 | * @codec: CODEC | |
2713 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2714 | * @source: Source for the clock |
ec4ee52a MB |
2715 | * @freq: new clock frequency in Hz |
2716 | * @dir: new clock direction - input/output. | |
2717 | * | |
2718 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2719 | */ | |
2720 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2721 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2722 | { |
2723 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2724 | return codec->driver->set_sysclk(codec, clk_id, source, |
2725 | freq, dir); | |
ec4ee52a MB |
2726 | else |
2727 | return -EINVAL; | |
2728 | } | |
2729 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2730 | ||
8c6529db LG |
2731 | /** |
2732 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2733 | * @dai: DAI | |
ac11a2b3 | 2734 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2735 | * @div: new clock divisor. |
2736 | * | |
2737 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2738 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2739 | * and frame clocks as low as possible to save system power. | |
2740 | */ | |
2741 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2742 | int div_id, int div) | |
2743 | { | |
f0fba2ad LG |
2744 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2745 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2746 | else |
2747 | return -EINVAL; | |
2748 | } | |
2749 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2750 | ||
2751 | /** | |
2752 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2753 | * @dai: DAI | |
2754 | * @pll_id: DAI specific PLL ID | |
85488037 | 2755 | * @source: DAI specific source for the PLL |
8c6529db LG |
2756 | * @freq_in: PLL input clock frequency in Hz |
2757 | * @freq_out: requested PLL output clock frequency in Hz | |
2758 | * | |
2759 | * Configures and enables PLL to generate output clock based on input clock. | |
2760 | */ | |
85488037 MB |
2761 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2762 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2763 | { |
f0fba2ad LG |
2764 | if (dai->driver && dai->driver->ops->set_pll) |
2765 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2766 | freq_in, freq_out); |
ec4ee52a MB |
2767 | else if (dai->codec && dai->codec->driver->set_pll) |
2768 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2769 | freq_in, freq_out); | |
8c6529db LG |
2770 | else |
2771 | return -EINVAL; | |
2772 | } | |
2773 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2774 | ||
ec4ee52a MB |
2775 | /* |
2776 | * snd_soc_codec_set_pll - configure codec PLL. | |
2777 | * @codec: CODEC | |
2778 | * @pll_id: DAI specific PLL ID | |
2779 | * @source: DAI specific source for the PLL | |
2780 | * @freq_in: PLL input clock frequency in Hz | |
2781 | * @freq_out: requested PLL output clock frequency in Hz | |
2782 | * | |
2783 | * Configures and enables PLL to generate output clock based on input clock. | |
2784 | */ | |
2785 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2786 | unsigned int freq_in, unsigned int freq_out) | |
2787 | { | |
2788 | if (codec->driver->set_pll) | |
2789 | return codec->driver->set_pll(codec, pll_id, source, | |
2790 | freq_in, freq_out); | |
2791 | else | |
2792 | return -EINVAL; | |
2793 | } | |
2794 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2795 | ||
8c6529db LG |
2796 | /** |
2797 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2798 | * @dai: DAI | |
8c6529db LG |
2799 | * @fmt: SND_SOC_DAIFMT_ format value. |
2800 | * | |
2801 | * Configures the DAI hardware format and clocking. | |
2802 | */ | |
2803 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2804 | { | |
f0fba2ad LG |
2805 | if (dai->driver && dai->driver->ops->set_fmt) |
2806 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2807 | else |
2808 | return -EINVAL; | |
2809 | } | |
2810 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2811 | ||
2812 | /** | |
2813 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2814 | * @dai: DAI | |
a5479e38 DR |
2815 | * @tx_mask: bitmask representing active TX slots. |
2816 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2817 | * @slots: Number of slots in use. |
a5479e38 | 2818 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2819 | * |
2820 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2821 | * specific. | |
2822 | */ | |
2823 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2824 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2825 | { |
f0fba2ad LG |
2826 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2827 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2828 | slots, slot_width); |
8c6529db LG |
2829 | else |
2830 | return -EINVAL; | |
2831 | } | |
2832 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2833 | ||
472df3cb BS |
2834 | /** |
2835 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2836 | * @dai: DAI | |
2837 | * @tx_num: how many TX channels | |
2838 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2839 | * 0~num-1 uses | |
2840 | * @rx_num: how many RX channels | |
2841 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2842 | * 0~num-1 uses | |
2843 | * | |
2844 | * configure the relationship between channel number and TDM slot number. | |
2845 | */ | |
2846 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2847 | unsigned int tx_num, unsigned int *tx_slot, | |
2848 | unsigned int rx_num, unsigned int *rx_slot) | |
2849 | { | |
f0fba2ad LG |
2850 | if (dai->driver && dai->driver->ops->set_channel_map) |
2851 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2852 | rx_num, rx_slot); |
2853 | else | |
2854 | return -EINVAL; | |
2855 | } | |
2856 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2857 | ||
8c6529db LG |
2858 | /** |
2859 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2860 | * @dai: DAI | |
2861 | * @tristate: tristate enable | |
2862 | * | |
2863 | * Tristates the DAI so that others can use it. | |
2864 | */ | |
2865 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2866 | { | |
f0fba2ad LG |
2867 | if (dai->driver && dai->driver->ops->set_tristate) |
2868 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2869 | else |
2870 | return -EINVAL; | |
2871 | } | |
2872 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2873 | ||
2874 | /** | |
2875 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2876 | * @dai: DAI | |
2877 | * @mute: mute enable | |
2878 | * | |
2879 | * Mutes the DAI DAC. | |
2880 | */ | |
2881 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2882 | { | |
f0fba2ad LG |
2883 | if (dai->driver && dai->driver->ops->digital_mute) |
2884 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2885 | else |
2886 | return -EINVAL; | |
2887 | } | |
2888 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2889 | ||
c5af3a2e MB |
2890 | /** |
2891 | * snd_soc_register_card - Register a card with the ASoC core | |
2892 | * | |
ac11a2b3 | 2893 | * @card: Card to register |
c5af3a2e | 2894 | * |
c5af3a2e | 2895 | */ |
70a7ca34 | 2896 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2897 | { |
f0fba2ad LG |
2898 | int i; |
2899 | ||
c5af3a2e MB |
2900 | if (!card->name || !card->dev) |
2901 | return -EINVAL; | |
2902 | ||
5a504963 SW |
2903 | for (i = 0; i < card->num_links; i++) { |
2904 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
2905 | ||
2906 | /* | |
2907 | * Codec must be specified by 1 of name or OF node, | |
2908 | * not both or neither. | |
2909 | */ | |
2910 | if (!!link->codec_name == !!link->codec_of_node) { | |
2911 | dev_err(card->dev, | |
3b09bb82 LG |
2912 | "Neither/both codec name/of_node are set for %s\n", |
2913 | link->name); | |
5a504963 SW |
2914 | return -EINVAL; |
2915 | } | |
2916 | ||
2917 | /* | |
2918 | * Platform may be specified by either name or OF node, but | |
2919 | * can be left unspecified, and a dummy platform will be used. | |
2920 | */ | |
2921 | if (link->platform_name && link->platform_of_node) { | |
2922 | dev_err(card->dev, | |
3b09bb82 | 2923 | "Both platform name/of_node are set for %s\n", link->name); |
5a504963 SW |
2924 | return -EINVAL; |
2925 | } | |
2926 | ||
2927 | /* | |
2928 | * CPU DAI must be specified by 1 of name or OF node, | |
2929 | * not both or neither. | |
2930 | */ | |
2931 | if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) { | |
2932 | dev_err(card->dev, | |
3b09bb82 LG |
2933 | "Neither/both cpu_dai name/of_node are set for %s\n", |
2934 | link->name); | |
5a504963 SW |
2935 | return -EINVAL; |
2936 | } | |
2937 | } | |
2938 | ||
ed77cc12 MB |
2939 | dev_set_drvdata(card->dev, card); |
2940 | ||
111c6419 SW |
2941 | snd_soc_initialize_card_lists(card); |
2942 | ||
150dd2f8 VK |
2943 | soc_init_card_debugfs(card); |
2944 | ||
2eea392d JN |
2945 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
2946 | (card->num_links + card->num_aux_devs), | |
2947 | GFP_KERNEL); | |
f0fba2ad LG |
2948 | if (card->rtd == NULL) |
2949 | return -ENOMEM; | |
2eea392d | 2950 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
2951 | |
2952 | for (i = 0; i < card->num_links; i++) | |
2953 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2954 | ||
c5af3a2e | 2955 | INIT_LIST_HEAD(&card->list); |
db432b41 | 2956 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 2957 | card->instantiated = 0; |
f0fba2ad | 2958 | mutex_init(&card->mutex); |
c5af3a2e MB |
2959 | |
2960 | mutex_lock(&client_mutex); | |
2961 | list_add(&card->list, &card_list); | |
435c5e25 | 2962 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2963 | mutex_unlock(&client_mutex); |
2964 | ||
2965 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2966 | ||
2967 | return 0; | |
2968 | } | |
70a7ca34 | 2969 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2970 | |
2971 | /** | |
2972 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2973 | * | |
ac11a2b3 | 2974 | * @card: Card to unregister |
c5af3a2e | 2975 | * |
c5af3a2e | 2976 | */ |
70a7ca34 | 2977 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2978 | { |
b0e26485 VK |
2979 | if (card->instantiated) |
2980 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
2981 | mutex_lock(&client_mutex); |
2982 | list_del(&card->list); | |
2983 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2984 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2985 | ||
2986 | return 0; | |
2987 | } | |
70a7ca34 | 2988 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2989 | |
f0fba2ad LG |
2990 | /* |
2991 | * Simplify DAI link configuration by removing ".-1" from device names | |
2992 | * and sanitizing names. | |
2993 | */ | |
0b9a214a | 2994 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2995 | { |
2996 | char *found, name[NAME_SIZE]; | |
2997 | int id1, id2; | |
2998 | ||
2999 | if (dev_name(dev) == NULL) | |
3000 | return NULL; | |
3001 | ||
58818a77 | 3002 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3003 | |
3004 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3005 | found = strstr(name, dev->driver->name); | |
3006 | if (found) { | |
3007 | /* get ID */ | |
3008 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3009 | ||
3010 | /* discard ID from name if ID == -1 */ | |
3011 | if (*id == -1) | |
3012 | found[strlen(dev->driver->name)] = '\0'; | |
3013 | } | |
3014 | ||
3015 | } else { | |
3016 | /* I2C component devices are named "bus-addr" */ | |
3017 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3018 | char tmp[NAME_SIZE]; | |
3019 | ||
3020 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3021 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3022 | |
3023 | /* sanitize component name for DAI link creation */ | |
3024 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3025 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3026 | } else |
3027 | *id = 0; | |
3028 | } | |
3029 | ||
3030 | return kstrdup(name, GFP_KERNEL); | |
3031 | } | |
3032 | ||
3033 | /* | |
3034 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3035 | * any ".-1" and using the DAI name (instead of device name). | |
3036 | */ | |
3037 | static inline char *fmt_multiple_name(struct device *dev, | |
3038 | struct snd_soc_dai_driver *dai_drv) | |
3039 | { | |
3040 | if (dai_drv->name == NULL) { | |
3041 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3042 | dev_name(dev)); | |
3043 | return NULL; | |
3044 | } | |
3045 | ||
3046 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3047 | } | |
3048 | ||
9115171a MB |
3049 | /** |
3050 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3051 | * | |
ac11a2b3 | 3052 | * @dai: DAI to register |
9115171a | 3053 | */ |
f0fba2ad LG |
3054 | int snd_soc_register_dai(struct device *dev, |
3055 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3056 | { |
f0fba2ad LG |
3057 | struct snd_soc_dai *dai; |
3058 | ||
3059 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3060 | |
f0fba2ad LG |
3061 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3062 | if (dai == NULL) | |
a7393623 | 3063 | return -ENOMEM; |
9115171a | 3064 | |
f0fba2ad LG |
3065 | /* create DAI component name */ |
3066 | dai->name = fmt_single_name(dev, &dai->id); | |
3067 | if (dai->name == NULL) { | |
3068 | kfree(dai); | |
3069 | return -ENOMEM; | |
3070 | } | |
6335d055 | 3071 | |
f0fba2ad LG |
3072 | dai->dev = dev; |
3073 | dai->driver = dai_drv; | |
3074 | if (!dai->driver->ops) | |
3075 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3076 | |
3077 | mutex_lock(&client_mutex); | |
3078 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3079 | snd_soc_instantiate_cards(); |
9115171a MB |
3080 | mutex_unlock(&client_mutex); |
3081 | ||
3082 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3083 | ||
3084 | return 0; | |
3085 | } | |
3086 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3087 | ||
3088 | /** | |
3089 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3090 | * | |
ac11a2b3 | 3091 | * @dai: DAI to unregister |
9115171a | 3092 | */ |
f0fba2ad | 3093 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3094 | { |
f0fba2ad LG |
3095 | struct snd_soc_dai *dai; |
3096 | ||
3097 | list_for_each_entry(dai, &dai_list, list) { | |
3098 | if (dev == dai->dev) | |
3099 | goto found; | |
3100 | } | |
3101 | return; | |
3102 | ||
3103 | found: | |
9115171a MB |
3104 | mutex_lock(&client_mutex); |
3105 | list_del(&dai->list); | |
3106 | mutex_unlock(&client_mutex); | |
3107 | ||
3108 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3109 | kfree(dai->name); |
3110 | kfree(dai); | |
9115171a MB |
3111 | } |
3112 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3113 | ||
3114 | /** | |
3115 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3116 | * | |
ac11a2b3 MB |
3117 | * @dai: Array of DAIs to register |
3118 | * @count: Number of DAIs | |
9115171a | 3119 | */ |
f0fba2ad LG |
3120 | int snd_soc_register_dais(struct device *dev, |
3121 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3122 | { |
f0fba2ad LG |
3123 | struct snd_soc_dai *dai; |
3124 | int i, ret = 0; | |
3125 | ||
720ffa4c | 3126 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3127 | |
3128 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3129 | |
3130 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3131 | if (dai == NULL) { |
3132 | ret = -ENOMEM; | |
3133 | goto err; | |
3134 | } | |
f0fba2ad LG |
3135 | |
3136 | /* create DAI component name */ | |
3137 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3138 | if (dai->name == NULL) { | |
3139 | kfree(dai); | |
3140 | ret = -EINVAL; | |
9115171a | 3141 | goto err; |
f0fba2ad LG |
3142 | } |
3143 | ||
3144 | dai->dev = dev; | |
f0fba2ad | 3145 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3146 | if (dai->driver->id) |
3147 | dai->id = dai->driver->id; | |
3148 | else | |
3149 | dai->id = i; | |
f0fba2ad LG |
3150 | if (!dai->driver->ops) |
3151 | dai->driver->ops = &null_dai_ops; | |
3152 | ||
3153 | mutex_lock(&client_mutex); | |
3154 | list_add(&dai->list, &dai_list); | |
3155 | mutex_unlock(&client_mutex); | |
3156 | ||
3157 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3158 | } |
3159 | ||
1dcb4f38 | 3160 | mutex_lock(&client_mutex); |
f0fba2ad | 3161 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3162 | mutex_unlock(&client_mutex); |
9115171a MB |
3163 | return 0; |
3164 | ||
3165 | err: | |
3166 | for (i--; i >= 0; i--) | |
f0fba2ad | 3167 | snd_soc_unregister_dai(dev); |
9115171a MB |
3168 | |
3169 | return ret; | |
3170 | } | |
3171 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3172 | ||
3173 | /** | |
3174 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3175 | * | |
ac11a2b3 MB |
3176 | * @dai: Array of DAIs to unregister |
3177 | * @count: Number of DAIs | |
9115171a | 3178 | */ |
f0fba2ad | 3179 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3180 | { |
3181 | int i; | |
3182 | ||
3183 | for (i = 0; i < count; i++) | |
f0fba2ad | 3184 | snd_soc_unregister_dai(dev); |
9115171a MB |
3185 | } |
3186 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3187 | ||
12a48a8c MB |
3188 | /** |
3189 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3190 | * | |
ac11a2b3 | 3191 | * @platform: platform to register |
12a48a8c | 3192 | */ |
f0fba2ad LG |
3193 | int snd_soc_register_platform(struct device *dev, |
3194 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3195 | { |
f0fba2ad LG |
3196 | struct snd_soc_platform *platform; |
3197 | ||
3198 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3199 | ||
3200 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3201 | if (platform == NULL) | |
a7393623 | 3202 | return -ENOMEM; |
f0fba2ad LG |
3203 | |
3204 | /* create platform component name */ | |
3205 | platform->name = fmt_single_name(dev, &platform->id); | |
3206 | if (platform->name == NULL) { | |
3207 | kfree(platform); | |
3208 | return -ENOMEM; | |
3209 | } | |
12a48a8c | 3210 | |
f0fba2ad LG |
3211 | platform->dev = dev; |
3212 | platform->driver = platform_drv; | |
b7950641 LG |
3213 | platform->dapm.dev = dev; |
3214 | platform->dapm.platform = platform; | |
64a648c2 | 3215 | platform->dapm.stream_event = platform_drv->stream_event; |
12a48a8c MB |
3216 | |
3217 | mutex_lock(&client_mutex); | |
3218 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3219 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3220 | mutex_unlock(&client_mutex); |
3221 | ||
3222 | pr_debug("Registered platform '%s'\n", platform->name); | |
3223 | ||
3224 | return 0; | |
3225 | } | |
3226 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3227 | ||
3228 | /** | |
3229 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3230 | * | |
ac11a2b3 | 3231 | * @platform: platform to unregister |
12a48a8c | 3232 | */ |
f0fba2ad | 3233 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3234 | { |
f0fba2ad LG |
3235 | struct snd_soc_platform *platform; |
3236 | ||
3237 | list_for_each_entry(platform, &platform_list, list) { | |
3238 | if (dev == platform->dev) | |
3239 | goto found; | |
3240 | } | |
3241 | return; | |
3242 | ||
3243 | found: | |
12a48a8c MB |
3244 | mutex_lock(&client_mutex); |
3245 | list_del(&platform->list); | |
3246 | mutex_unlock(&client_mutex); | |
3247 | ||
3248 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3249 | kfree(platform->name); |
3250 | kfree(platform); | |
12a48a8c MB |
3251 | } |
3252 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3253 | ||
151ab22c MB |
3254 | static u64 codec_format_map[] = { |
3255 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3256 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3257 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3258 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3259 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3260 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3261 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3262 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3263 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3264 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3265 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3266 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3267 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3268 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3269 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3270 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3271 | }; | |
3272 | ||
3273 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3274 | * the endianness of the data but we're using the CPU format | |
3275 | * definitions which do need to include endianness so we ensure that | |
3276 | * codec DAIs always have both big and little endian variants set. | |
3277 | */ | |
3278 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3279 | { | |
3280 | int i; | |
3281 | ||
3282 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3283 | if (stream->formats & codec_format_map[i]) | |
3284 | stream->formats |= codec_format_map[i]; | |
3285 | } | |
3286 | ||
0d0cf00a MB |
3287 | /** |
3288 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3289 | * | |
ac11a2b3 | 3290 | * @codec: codec to register |
0d0cf00a | 3291 | */ |
f0fba2ad | 3292 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3293 | const struct snd_soc_codec_driver *codec_drv, |
3294 | struct snd_soc_dai_driver *dai_drv, | |
3295 | int num_dai) | |
0d0cf00a | 3296 | { |
3335ddca | 3297 | size_t reg_size; |
f0fba2ad LG |
3298 | struct snd_soc_codec *codec; |
3299 | int ret, i; | |
151ab22c | 3300 | |
f0fba2ad LG |
3301 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3302 | ||
3303 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3304 | if (codec == NULL) | |
3305 | return -ENOMEM; | |
0d0cf00a | 3306 | |
f0fba2ad LG |
3307 | /* create CODEC component name */ |
3308 | codec->name = fmt_single_name(dev, &codec->id); | |
3309 | if (codec->name == NULL) { | |
3310 | kfree(codec); | |
3311 | return -ENOMEM; | |
3312 | } | |
3313 | ||
23bbce34 DP |
3314 | if (codec_drv->compress_type) |
3315 | codec->compress_type = codec_drv->compress_type; | |
3316 | else | |
3317 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3318 | ||
c3acec26 MB |
3319 | codec->write = codec_drv->write; |
3320 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3321 | codec->volatile_register = codec_drv->volatile_register; |
3322 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3323 | codec->writable_register = codec_drv->writable_register; |
5124e69e | 3324 | codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
ce6120cc LG |
3325 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3326 | codec->dapm.dev = dev; | |
3327 | codec->dapm.codec = codec; | |
474b62d6 | 3328 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3329 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3330 | codec->dev = dev; |
3331 | codec->driver = codec_drv; | |
3332 | codec->num_dai = num_dai; | |
3333 | mutex_init(&codec->mutex); | |
ce6120cc | 3334 | |
f0fba2ad LG |
3335 | /* allocate CODEC register cache */ |
3336 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3337 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3338 | codec->reg_size = reg_size; |
3335ddca DP |
3339 | /* it is necessary to make a copy of the default register cache |
3340 | * because in the case of using a compression type that requires | |
3341 | * the default register cache to be marked as __devinitconst the | |
3342 | * kernel might have freed the array by the time we initialize | |
3343 | * the cache. | |
3344 | */ | |
2aa86323 DP |
3345 | if (codec_drv->reg_cache_default) { |
3346 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3347 | reg_size, GFP_KERNEL); | |
3348 | if (!codec->reg_def_copy) { | |
3349 | ret = -ENOMEM; | |
3350 | goto fail; | |
3351 | } | |
f0fba2ad | 3352 | } |
151ab22c MB |
3353 | } |
3354 | ||
1500b7b5 DP |
3355 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3356 | if (!codec->volatile_register) | |
3357 | codec->volatile_register = snd_soc_default_volatile_register; | |
3358 | if (!codec->readable_register) | |
3359 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3360 | if (!codec->writable_register) |
3361 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3362 | } |
3363 | ||
f0fba2ad LG |
3364 | for (i = 0; i < num_dai; i++) { |
3365 | fixup_codec_formats(&dai_drv[i].playback); | |
3366 | fixup_codec_formats(&dai_drv[i].capture); | |
3367 | } | |
3368 | ||
26b01ccd MB |
3369 | /* register any DAIs */ |
3370 | if (num_dai) { | |
3371 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3372 | if (ret < 0) | |
fdf0f54d | 3373 | goto fail; |
26b01ccd | 3374 | } |
f0fba2ad | 3375 | |
0d0cf00a MB |
3376 | mutex_lock(&client_mutex); |
3377 | list_add(&codec->list, &codec_list); | |
3378 | snd_soc_instantiate_cards(); | |
3379 | mutex_unlock(&client_mutex); | |
3380 | ||
3381 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3382 | return 0; |
f0fba2ad | 3383 | |
fdf0f54d | 3384 | fail: |
3335ddca DP |
3385 | kfree(codec->reg_def_copy); |
3386 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3387 | kfree(codec->name); |
3388 | kfree(codec); | |
3389 | return ret; | |
0d0cf00a MB |
3390 | } |
3391 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3392 | ||
3393 | /** | |
3394 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3395 | * | |
ac11a2b3 | 3396 | * @codec: codec to unregister |
0d0cf00a | 3397 | */ |
f0fba2ad | 3398 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3399 | { |
f0fba2ad LG |
3400 | struct snd_soc_codec *codec; |
3401 | int i; | |
3402 | ||
3403 | list_for_each_entry(codec, &codec_list, list) { | |
3404 | if (dev == codec->dev) | |
3405 | goto found; | |
3406 | } | |
3407 | return; | |
3408 | ||
3409 | found: | |
26b01ccd MB |
3410 | if (codec->num_dai) |
3411 | for (i = 0; i < codec->num_dai; i++) | |
3412 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3413 | |
0d0cf00a MB |
3414 | mutex_lock(&client_mutex); |
3415 | list_del(&codec->list); | |
3416 | mutex_unlock(&client_mutex); | |
3417 | ||
3418 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3419 | |
7a30a3db | 3420 | snd_soc_cache_exit(codec); |
3335ddca | 3421 | kfree(codec->reg_def_copy); |
1aafcd4d | 3422 | kfree(codec->name); |
f0fba2ad | 3423 | kfree(codec); |
0d0cf00a MB |
3424 | } |
3425 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3426 | ||
bec4fa05 SW |
3427 | /* Retrieve a card's name from device tree */ |
3428 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3429 | const char *propname) | |
3430 | { | |
3431 | struct device_node *np = card->dev->of_node; | |
3432 | int ret; | |
3433 | ||
3434 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
3435 | /* | |
3436 | * EINVAL means the property does not exist. This is fine providing | |
3437 | * card->name was previously set, which is checked later in | |
3438 | * snd_soc_register_card. | |
3439 | */ | |
3440 | if (ret < 0 && ret != -EINVAL) { | |
3441 | dev_err(card->dev, | |
3442 | "Property '%s' could not be read: %d\n", | |
3443 | propname, ret); | |
3444 | return ret; | |
3445 | } | |
3446 | ||
3447 | return 0; | |
3448 | } | |
3449 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3450 | ||
a4a54dd5 SW |
3451 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3452 | const char *propname) | |
3453 | { | |
3454 | struct device_node *np = card->dev->of_node; | |
3455 | int num_routes; | |
3456 | struct snd_soc_dapm_route *routes; | |
3457 | int i, ret; | |
3458 | ||
3459 | num_routes = of_property_count_strings(np, propname); | |
3460 | if (num_routes & 1) { | |
3461 | dev_err(card->dev, | |
3462 | "Property '%s's length is not even\n", | |
3463 | propname); | |
3464 | return -EINVAL; | |
3465 | } | |
3466 | num_routes /= 2; | |
3467 | if (!num_routes) { | |
3468 | dev_err(card->dev, | |
3469 | "Property '%s's length is zero\n", | |
3470 | propname); | |
3471 | return -EINVAL; | |
3472 | } | |
3473 | ||
3474 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
3475 | GFP_KERNEL); | |
3476 | if (!routes) { | |
3477 | dev_err(card->dev, | |
3478 | "Could not allocate DAPM route table\n"); | |
3479 | return -EINVAL; | |
3480 | } | |
3481 | ||
3482 | for (i = 0; i < num_routes; i++) { | |
3483 | ret = of_property_read_string_index(np, propname, | |
3484 | 2 * i, &routes[i].sink); | |
3485 | if (ret) { | |
3486 | dev_err(card->dev, | |
3487 | "Property '%s' index %d could not be read: %d\n", | |
3488 | propname, 2 * i, ret); | |
3489 | return -EINVAL; | |
3490 | } | |
3491 | ret = of_property_read_string_index(np, propname, | |
3492 | (2 * i) + 1, &routes[i].source); | |
3493 | if (ret) { | |
3494 | dev_err(card->dev, | |
3495 | "Property '%s' index %d could not be read: %d\n", | |
3496 | propname, (2 * i) + 1, ret); | |
3497 | return -EINVAL; | |
3498 | } | |
3499 | } | |
3500 | ||
3501 | card->num_dapm_routes = num_routes; | |
3502 | card->dapm_routes = routes; | |
3503 | ||
3504 | return 0; | |
3505 | } | |
3506 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3507 | ||
c9b3a40f | 3508 | static int __init snd_soc_init(void) |
db2a4165 | 3509 | { |
384c89e2 | 3510 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3511 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3512 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3513 | printk(KERN_WARNING |
3514 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3515 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3516 | } |
c3c5a19a | 3517 | |
8a9dab1a | 3518 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3519 | &codec_list_fops)) |
3520 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3521 | ||
8a9dab1a | 3522 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3523 | &dai_list_fops)) |
3524 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3525 | |
8a9dab1a | 3526 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3527 | &platform_list_fops)) |
3528 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3529 | #endif |
3530 | ||
fb257897 MB |
3531 | snd_soc_util_init(); |
3532 | ||
db2a4165 FM |
3533 | return platform_driver_register(&soc_driver); |
3534 | } | |
4abe8e16 | 3535 | module_init(snd_soc_init); |
db2a4165 | 3536 | |
7d8c16a6 | 3537 | static void __exit snd_soc_exit(void) |
db2a4165 | 3538 | { |
fb257897 MB |
3539 | snd_soc_util_exit(); |
3540 | ||
384c89e2 | 3541 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3542 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3543 | #endif |
3ff3f64b | 3544 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3545 | } |
db2a4165 FM |
3546 | module_exit(snd_soc_exit); |
3547 | ||
3548 | /* Module information */ | |
d331124d | 3549 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3550 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3551 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3552 | MODULE_ALIAS("platform:soc-audio"); |