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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 | 56 | static DEFINE_MUTEX(client_mutex); |
9115171a | 57 | static LIST_HEAD(dai_list); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
2bc9a81e DP |
70 | /* returns the minimum number of bytes needed to represent |
71 | * a particular given value */ | |
72 | static int min_bytes_needed(unsigned long val) | |
73 | { | |
74 | int c = 0; | |
75 | int i; | |
76 | ||
77 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
78 | if (val & (1UL << i)) | |
79 | break; | |
80 | c = (sizeof val * 8) - c; | |
81 | if (!c || (c % 8)) | |
82 | c = (c + 8) / 8; | |
83 | else | |
84 | c /= 8; | |
85 | return c; | |
86 | } | |
87 | ||
13fd179f DP |
88 | /* fill buf which is 'len' bytes with a formatted |
89 | * string of the form 'reg: value\n' */ | |
90 | static int format_register_str(struct snd_soc_codec *codec, | |
91 | unsigned int reg, char *buf, size_t len) | |
92 | { | |
00b317a4 SW |
93 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
94 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
95 | int ret; |
96 | char tmpbuf[len + 1]; | |
97 | char regbuf[regsize + 1]; | |
98 | ||
99 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
100 | * try to abuse this function */ | |
101 | WARN_ON(len > 63); | |
102 | ||
103 | /* +2 for ': ' and + 1 for '\n' */ | |
104 | if (wordsize + regsize + 2 + 1 != len) | |
105 | return -EINVAL; | |
106 | ||
25032c11 | 107 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
108 | if (ret < 0) { |
109 | memset(regbuf, 'X', regsize); | |
110 | regbuf[regsize] = '\0'; | |
111 | } else { | |
112 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
113 | } | |
114 | ||
115 | /* prepare the buffer */ | |
116 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
117 | /* copy it back to the caller without the '\0' */ | |
118 | memcpy(buf, tmpbuf, len); | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
2624d5fa | 123 | /* codec register dump */ |
13fd179f DP |
124 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
125 | size_t count, loff_t pos) | |
2624d5fa | 126 | { |
13fd179f | 127 | int i, step = 1; |
2bc9a81e | 128 | int wordsize, regsize; |
13fd179f DP |
129 | int len; |
130 | size_t total = 0; | |
131 | loff_t p = 0; | |
2bc9a81e | 132 | |
00b317a4 SW |
133 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
134 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 135 | |
13fd179f DP |
136 | len = wordsize + regsize + 2 + 1; |
137 | ||
f0fba2ad | 138 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
139 | return 0; |
140 | ||
f0fba2ad LG |
141 | if (codec->driver->reg_cache_step) |
142 | step = codec->driver->reg_cache_step; | |
2624d5fa | 143 | |
f0fba2ad | 144 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
b92d150b | 145 | if (!snd_soc_codec_readable_register(codec, i)) |
2624d5fa | 146 | continue; |
f0fba2ad LG |
147 | if (codec->driver->display_register) { |
148 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 149 | PAGE_SIZE - count, i); |
5164d74d | 150 | } else { |
13fd179f DP |
151 | /* only support larger than PAGE_SIZE bytes debugfs |
152 | * entries for the default case */ | |
153 | if (p >= pos) { | |
154 | if (total + len >= count - 1) | |
155 | break; | |
156 | format_register_str(codec, i, buf + total, len); | |
157 | total += len; | |
158 | } | |
159 | p += len; | |
5164d74d | 160 | } |
2624d5fa MB |
161 | } |
162 | ||
13fd179f | 163 | total = min(total, count - 1); |
2624d5fa | 164 | |
13fd179f | 165 | return total; |
2624d5fa | 166 | } |
13fd179f | 167 | |
2624d5fa MB |
168 | static ssize_t codec_reg_show(struct device *dev, |
169 | struct device_attribute *attr, char *buf) | |
170 | { | |
36ae1a96 | 171 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 172 | |
13fd179f | 173 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
174 | } |
175 | ||
176 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
177 | ||
dbe21408 MB |
178 | static ssize_t pmdown_time_show(struct device *dev, |
179 | struct device_attribute *attr, char *buf) | |
180 | { | |
36ae1a96 | 181 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
dbe21408 | 182 | |
f0fba2ad | 183 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
184 | } |
185 | ||
186 | static ssize_t pmdown_time_set(struct device *dev, | |
187 | struct device_attribute *attr, | |
188 | const char *buf, size_t count) | |
189 | { | |
36ae1a96 | 190 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
c593b520 | 191 | int ret; |
dbe21408 | 192 | |
c593b520 MB |
193 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
194 | if (ret) | |
195 | return ret; | |
dbe21408 MB |
196 | |
197 | return count; | |
198 | } | |
199 | ||
200 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
201 | ||
2624d5fa | 202 | #ifdef CONFIG_DEBUG_FS |
2624d5fa | 203 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, |
13fd179f | 204 | size_t count, loff_t *ppos) |
2624d5fa MB |
205 | { |
206 | ssize_t ret; | |
207 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
208 | char *buf; |
209 | ||
210 | if (*ppos < 0 || !count) | |
211 | return -EINVAL; | |
212 | ||
213 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
214 | if (!buf) |
215 | return -ENOMEM; | |
13fd179f DP |
216 | |
217 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
218 | if (ret >= 0) { | |
219 | if (copy_to_user(user_buf, buf, ret)) { | |
220 | kfree(buf); | |
221 | return -EFAULT; | |
222 | } | |
223 | *ppos += ret; | |
224 | } | |
225 | ||
2624d5fa MB |
226 | kfree(buf); |
227 | return ret; | |
228 | } | |
229 | ||
230 | static ssize_t codec_reg_write_file(struct file *file, | |
231 | const char __user *user_buf, size_t count, loff_t *ppos) | |
232 | { | |
233 | char buf[32]; | |
34e268d8 | 234 | size_t buf_size; |
2624d5fa MB |
235 | char *start = buf; |
236 | unsigned long reg, value; | |
2624d5fa MB |
237 | struct snd_soc_codec *codec = file->private_data; |
238 | ||
239 | buf_size = min(count, (sizeof(buf)-1)); | |
240 | if (copy_from_user(buf, user_buf, buf_size)) | |
241 | return -EFAULT; | |
242 | buf[buf_size] = 0; | |
2624d5fa MB |
243 | |
244 | while (*start == ' ') | |
245 | start++; | |
246 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
247 | while (*start == ' ') |
248 | start++; | |
249 | if (strict_strtoul(start, 16, &value)) | |
250 | return -EINVAL; | |
0d51a9cb MB |
251 | |
252 | /* Userspace has been fiddling around behind the kernel's back */ | |
253 | add_taint(TAINT_USER); | |
254 | ||
e4f078d8 | 255 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
256 | return buf_size; |
257 | } | |
258 | ||
259 | static const struct file_operations codec_reg_fops = { | |
234e3405 | 260 | .open = simple_open, |
2624d5fa MB |
261 | .read = codec_reg_read_file, |
262 | .write = codec_reg_write_file, | |
6038f373 | 263 | .llseek = default_llseek, |
2624d5fa MB |
264 | }; |
265 | ||
266 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
267 | { | |
d6ce4cf3 JN |
268 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
269 | ||
270 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
271 | debugfs_card_root); | |
2624d5fa | 272 | if (!codec->debugfs_codec_root) { |
64e60f9f | 273 | dev_warn(codec->dev, "Failed to create codec debugfs directory\n"); |
2624d5fa MB |
274 | return; |
275 | } | |
276 | ||
aaee8ef1 MB |
277 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
278 | &codec->cache_sync); | |
279 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
280 | &codec->cache_only); | |
281 | ||
2624d5fa MB |
282 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
283 | codec->debugfs_codec_root, | |
284 | codec, &codec_reg_fops); | |
285 | if (!codec->debugfs_reg) | |
64e60f9f | 286 | dev_warn(codec->dev, "Failed to create codec register debugfs file\n"); |
2624d5fa | 287 | |
8eecaf62 | 288 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
289 | } |
290 | ||
291 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
292 | { | |
293 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
294 | } | |
295 | ||
731f1ab2 SG |
296 | static void soc_init_platform_debugfs(struct snd_soc_platform *platform) |
297 | { | |
298 | struct dentry *debugfs_card_root = platform->card->debugfs_card_root; | |
299 | ||
300 | platform->debugfs_platform_root = debugfs_create_dir(platform->name, | |
301 | debugfs_card_root); | |
302 | if (!platform->debugfs_platform_root) { | |
303 | dev_warn(platform->dev, | |
304 | "Failed to create platform debugfs directory\n"); | |
305 | return; | |
306 | } | |
307 | ||
308 | snd_soc_dapm_debugfs_init(&platform->dapm, | |
309 | platform->debugfs_platform_root); | |
310 | } | |
311 | ||
312 | static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform) | |
313 | { | |
314 | debugfs_remove_recursive(platform->debugfs_platform_root); | |
315 | } | |
316 | ||
c3c5a19a MB |
317 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
318 | size_t count, loff_t *ppos) | |
319 | { | |
320 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 321 | ssize_t len, ret = 0; |
c3c5a19a MB |
322 | struct snd_soc_codec *codec; |
323 | ||
324 | if (!buf) | |
325 | return -ENOMEM; | |
326 | ||
2b194f9d MB |
327 | list_for_each_entry(codec, &codec_list, list) { |
328 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
329 | codec->name); | |
330 | if (len >= 0) | |
331 | ret += len; | |
332 | if (ret > PAGE_SIZE) { | |
333 | ret = PAGE_SIZE; | |
334 | break; | |
335 | } | |
336 | } | |
c3c5a19a MB |
337 | |
338 | if (ret >= 0) | |
339 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
340 | ||
341 | kfree(buf); | |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
346 | static const struct file_operations codec_list_fops = { | |
347 | .read = codec_list_read_file, | |
348 | .llseek = default_llseek,/* read accesses f_pos */ | |
349 | }; | |
350 | ||
f3208780 MB |
351 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
352 | size_t count, loff_t *ppos) | |
353 | { | |
354 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 355 | ssize_t len, ret = 0; |
f3208780 MB |
356 | struct snd_soc_dai *dai; |
357 | ||
358 | if (!buf) | |
359 | return -ENOMEM; | |
360 | ||
2b194f9d MB |
361 | list_for_each_entry(dai, &dai_list, list) { |
362 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
363 | if (len >= 0) | |
364 | ret += len; | |
365 | if (ret > PAGE_SIZE) { | |
366 | ret = PAGE_SIZE; | |
367 | break; | |
368 | } | |
369 | } | |
f3208780 | 370 | |
2b194f9d | 371 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
372 | |
373 | kfree(buf); | |
374 | ||
375 | return ret; | |
376 | } | |
377 | ||
378 | static const struct file_operations dai_list_fops = { | |
379 | .read = dai_list_read_file, | |
380 | .llseek = default_llseek,/* read accesses f_pos */ | |
381 | }; | |
382 | ||
19c7ac27 MB |
383 | static ssize_t platform_list_read_file(struct file *file, |
384 | char __user *user_buf, | |
385 | size_t count, loff_t *ppos) | |
386 | { | |
387 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 388 | ssize_t len, ret = 0; |
19c7ac27 MB |
389 | struct snd_soc_platform *platform; |
390 | ||
391 | if (!buf) | |
392 | return -ENOMEM; | |
393 | ||
2b194f9d MB |
394 | list_for_each_entry(platform, &platform_list, list) { |
395 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
396 | platform->name); | |
397 | if (len >= 0) | |
398 | ret += len; | |
399 | if (ret > PAGE_SIZE) { | |
400 | ret = PAGE_SIZE; | |
401 | break; | |
402 | } | |
403 | } | |
19c7ac27 | 404 | |
2b194f9d | 405 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
406 | |
407 | kfree(buf); | |
408 | ||
409 | return ret; | |
410 | } | |
411 | ||
412 | static const struct file_operations platform_list_fops = { | |
413 | .read = platform_list_read_file, | |
414 | .llseek = default_llseek,/* read accesses f_pos */ | |
415 | }; | |
416 | ||
a6052154 JN |
417 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
418 | { | |
419 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 420 | snd_soc_debugfs_root); |
3a45b867 | 421 | if (!card->debugfs_card_root) { |
a6052154 | 422 | dev_warn(card->dev, |
7c08be84 | 423 | "ASoC: Failed to create card debugfs directory\n"); |
3a45b867 JN |
424 | return; |
425 | } | |
426 | ||
427 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
428 | card->debugfs_card_root, | |
429 | &card->pop_time); | |
430 | if (!card->debugfs_pop_time) | |
431 | dev_warn(card->dev, | |
432 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
433 | } |
434 | ||
435 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
436 | { | |
437 | debugfs_remove_recursive(card->debugfs_card_root); | |
438 | } | |
439 | ||
2624d5fa MB |
440 | #else |
441 | ||
442 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
443 | { | |
444 | } | |
445 | ||
446 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
447 | { | |
448 | } | |
b95fccbc | 449 | |
731f1ab2 SG |
450 | static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform) |
451 | { | |
452 | } | |
453 | ||
454 | static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform) | |
455 | { | |
456 | } | |
457 | ||
b95fccbc AL |
458 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) |
459 | { | |
460 | } | |
461 | ||
462 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
463 | { | |
464 | } | |
2624d5fa MB |
465 | #endif |
466 | ||
db2a4165 FM |
467 | #ifdef CONFIG_SND_SOC_AC97_BUS |
468 | /* unregister ac97 codec */ | |
469 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
470 | { | |
471 | if (codec->ac97->dev.bus) | |
472 | device_unregister(&codec->ac97->dev); | |
473 | return 0; | |
474 | } | |
475 | ||
476 | /* stop no dev release warning */ | |
477 | static void soc_ac97_device_release(struct device *dev){} | |
478 | ||
479 | /* register ac97 codec to bus */ | |
480 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
481 | { | |
482 | int err; | |
483 | ||
484 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 485 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
486 | codec->ac97->dev.release = soc_ac97_device_release; |
487 | ||
bb072bf0 | 488 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 489 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
490 | err = device_register(&codec->ac97->dev); |
491 | if (err < 0) { | |
492 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
493 | codec->ac97->dev.bus = NULL; | |
494 | return err; | |
495 | } | |
496 | return 0; | |
497 | } | |
498 | #endif | |
499 | ||
6f8ab4ac | 500 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 501 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 502 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 503 | { |
6f8ab4ac | 504 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 505 | struct snd_soc_codec *codec; |
db2a4165 FM |
506 | int i; |
507 | ||
e3509ff0 DM |
508 | /* If the initialization of this soc device failed, there is no codec |
509 | * associated with it. Just bail out in this case. | |
510 | */ | |
f0fba2ad | 511 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
512 | return 0; |
513 | ||
6ed25978 AG |
514 | /* Due to the resume being scheduled into a workqueue we could |
515 | * suspend before that's finished - wait for it to complete. | |
516 | */ | |
f0fba2ad LG |
517 | snd_power_lock(card->snd_card); |
518 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
519 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
520 | |
521 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 522 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 523 | |
a00f90f9 | 524 | /* mute any active DACs */ |
f0fba2ad LG |
525 | for (i = 0; i < card->num_rtd; i++) { |
526 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
527 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 528 | |
f0fba2ad | 529 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
530 | continue; |
531 | ||
f0fba2ad LG |
532 | if (drv->ops->digital_mute && dai->playback_active) |
533 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
534 | } |
535 | ||
4ccab3e7 | 536 | /* suspend all pcms */ |
f0fba2ad LG |
537 | for (i = 0; i < card->num_rtd; i++) { |
538 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
539 | continue; |
540 | ||
f0fba2ad | 541 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 542 | } |
4ccab3e7 | 543 | |
87506549 | 544 | if (card->suspend_pre) |
70b2ac12 | 545 | card->suspend_pre(card); |
db2a4165 | 546 | |
f0fba2ad LG |
547 | for (i = 0; i < card->num_rtd; i++) { |
548 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
549 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 550 | |
f0fba2ad | 551 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
552 | continue; |
553 | ||
f0fba2ad LG |
554 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
555 | cpu_dai->driver->suspend(cpu_dai); | |
556 | if (platform->driver->suspend && !platform->suspended) { | |
557 | platform->driver->suspend(cpu_dai); | |
558 | platform->suspended = 1; | |
559 | } | |
db2a4165 FM |
560 | } |
561 | ||
562 | /* close any waiting streams and save state */ | |
f0fba2ad | 563 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 564 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 565 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 566 | } |
db2a4165 | 567 | |
f0fba2ad | 568 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 569 | |
f0fba2ad | 570 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
571 | continue; |
572 | ||
7bd3a6f3 MB |
573 | snd_soc_dapm_stream_event(&card->rtd[i], |
574 | SNDRV_PCM_STREAM_PLAYBACK, | |
7bd3a6f3 | 575 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad | 576 | |
7bd3a6f3 MB |
577 | snd_soc_dapm_stream_event(&card->rtd[i], |
578 | SNDRV_PCM_STREAM_CAPTURE, | |
7bd3a6f3 | 579 | SND_SOC_DAPM_STREAM_SUSPEND); |
db2a4165 FM |
580 | } |
581 | ||
f0fba2ad | 582 | /* suspend all CODECs */ |
2eea392d | 583 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
584 | /* If there are paths active then the CODEC will be held with |
585 | * bias _ON and should not be suspended. */ | |
586 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 587 | switch (codec->dapm.bias_level) { |
f0fba2ad | 588 | case SND_SOC_BIAS_STANDBY: |
125a25da MB |
589 | /* |
590 | * If the CODEC is capable of idle | |
591 | * bias off then being in STANDBY | |
592 | * means it's doing something, | |
593 | * otherwise fall through. | |
594 | */ | |
595 | if (codec->dapm.idle_bias_off) { | |
596 | dev_dbg(codec->dev, | |
597 | "idle_bias_off CODEC on over suspend\n"); | |
598 | break; | |
599 | } | |
f0fba2ad | 600 | case SND_SOC_BIAS_OFF: |
84b315ee | 601 | codec->driver->suspend(codec); |
f0fba2ad | 602 | codec->suspended = 1; |
7be4ba24 | 603 | codec->cache_sync = 1; |
f0fba2ad LG |
604 | break; |
605 | default: | |
606 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
607 | break; | |
608 | } | |
1547aba9 MB |
609 | } |
610 | } | |
db2a4165 | 611 | |
f0fba2ad LG |
612 | for (i = 0; i < card->num_rtd; i++) { |
613 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 614 | |
f0fba2ad | 615 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
616 | continue; |
617 | ||
f0fba2ad LG |
618 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
619 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
620 | } |
621 | ||
87506549 | 622 | if (card->suspend_post) |
70b2ac12 | 623 | card->suspend_post(card); |
db2a4165 FM |
624 | |
625 | return 0; | |
626 | } | |
6f8ab4ac | 627 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 628 | |
6ed25978 AG |
629 | /* deferred resume work, so resume can complete before we finished |
630 | * setting our codec back up, which can be very slow on I2C | |
631 | */ | |
632 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 633 | { |
f0fba2ad LG |
634 | struct snd_soc_card *card = |
635 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 636 | struct snd_soc_codec *codec; |
db2a4165 FM |
637 | int i; |
638 | ||
6ed25978 AG |
639 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
640 | * so userspace apps are blocked from touching us | |
641 | */ | |
642 | ||
f0fba2ad | 643 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 644 | |
9949788b | 645 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 646 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 647 | |
87506549 | 648 | if (card->resume_pre) |
70b2ac12 | 649 | card->resume_pre(card); |
db2a4165 | 650 | |
f0fba2ad LG |
651 | /* resume AC97 DAIs */ |
652 | for (i = 0; i < card->num_rtd; i++) { | |
653 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 654 | |
f0fba2ad | 655 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
656 | continue; |
657 | ||
f0fba2ad LG |
658 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
659 | cpu_dai->driver->resume(cpu_dai); | |
660 | } | |
661 | ||
2eea392d | 662 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
663 | /* If the CODEC was idle over suspend then it will have been |
664 | * left with bias OFF or STANDBY and suspended so we must now | |
665 | * resume. Otherwise the suspend was suppressed. | |
666 | */ | |
667 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 668 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
669 | case SND_SOC_BIAS_STANDBY: |
670 | case SND_SOC_BIAS_OFF: | |
671 | codec->driver->resume(codec); | |
672 | codec->suspended = 0; | |
673 | break; | |
674 | default: | |
675 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
676 | break; | |
677 | } | |
1547aba9 MB |
678 | } |
679 | } | |
db2a4165 | 680 | |
f0fba2ad | 681 | for (i = 0; i < card->num_rtd; i++) { |
3efab7dc | 682 | |
f0fba2ad | 683 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
684 | continue; |
685 | ||
7bd3a6f3 | 686 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 687 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 688 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad | 689 | |
7bd3a6f3 | 690 | snd_soc_dapm_stream_event(&card->rtd[i], |
d9b0951b | 691 | SNDRV_PCM_STREAM_CAPTURE, |
7bd3a6f3 | 692 | SND_SOC_DAPM_STREAM_RESUME); |
db2a4165 FM |
693 | } |
694 | ||
3ff3f64b | 695 | /* unmute any active DACs */ |
f0fba2ad LG |
696 | for (i = 0; i < card->num_rtd; i++) { |
697 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
698 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 699 | |
f0fba2ad | 700 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
701 | continue; |
702 | ||
f0fba2ad LG |
703 | if (drv->ops->digital_mute && dai->playback_active) |
704 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
705 | } |
706 | ||
f0fba2ad LG |
707 | for (i = 0; i < card->num_rtd; i++) { |
708 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
709 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 710 | |
f0fba2ad | 711 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
712 | continue; |
713 | ||
f0fba2ad LG |
714 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
715 | cpu_dai->driver->resume(cpu_dai); | |
716 | if (platform->driver->resume && platform->suspended) { | |
717 | platform->driver->resume(cpu_dai); | |
718 | platform->suspended = 0; | |
719 | } | |
db2a4165 FM |
720 | } |
721 | ||
87506549 | 722 | if (card->resume_post) |
70b2ac12 | 723 | card->resume_post(card); |
db2a4165 | 724 | |
f0fba2ad | 725 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
726 | |
727 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 728 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
729 | } |
730 | ||
731 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 732 | int snd_soc_resume(struct device *dev) |
6ed25978 | 733 | { |
6f8ab4ac | 734 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 735 | int i, ac97_control = 0; |
b9dd94a8 | 736 | |
5ff1ddf2 EM |
737 | /* If the initialization of this soc device failed, there is no codec |
738 | * associated with it. Just bail out in this case. | |
739 | */ | |
740 | if (list_empty(&card->codec_dev_list)) | |
741 | return 0; | |
742 | ||
64ab9baa MB |
743 | /* AC97 devices might have other drivers hanging off them so |
744 | * need to resume immediately. Other drivers don't have that | |
745 | * problem and may take a substantial amount of time to resume | |
746 | * due to I/O costs and anti-pop so handle them out of line. | |
747 | */ | |
f0fba2ad LG |
748 | for (i = 0; i < card->num_rtd; i++) { |
749 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
750 | ac97_control |= cpu_dai->driver->ac97_control; |
751 | } | |
752 | if (ac97_control) { | |
753 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
754 | soc_resume_deferred(&card->deferred_resume_work); | |
755 | } else { | |
756 | dev_dbg(dev, "Scheduling resume work\n"); | |
757 | if (!schedule_work(&card->deferred_resume_work)) | |
758 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 759 | } |
6ed25978 | 760 | |
db2a4165 FM |
761 | return 0; |
762 | } | |
6f8ab4ac | 763 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 764 | #else |
6f8ab4ac MB |
765 | #define snd_soc_suspend NULL |
766 | #define snd_soc_resume NULL | |
db2a4165 FM |
767 | #endif |
768 | ||
85e7652d | 769 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
770 | }; |
771 | ||
f0fba2ad | 772 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 773 | { |
f0fba2ad LG |
774 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
775 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 776 | struct snd_soc_codec *codec; |
435c5e25 | 777 | struct snd_soc_platform *platform; |
f0fba2ad | 778 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 779 | const char *platform_name; |
435c5e25 | 780 | |
f0fba2ad | 781 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); |
435c5e25 | 782 | |
b19e6e7b | 783 | /* Find CPU DAI from registered DAIs*/ |
f0fba2ad | 784 | list_for_each_entry(cpu_dai, &dai_list, list) { |
5a504963 SW |
785 | if (dai_link->cpu_dai_of_node) { |
786 | if (cpu_dai->dev->of_node != dai_link->cpu_dai_of_node) | |
787 | continue; | |
788 | } else { | |
789 | if (strcmp(cpu_dai->name, dai_link->cpu_dai_name)) | |
790 | continue; | |
791 | } | |
2610ab77 SW |
792 | |
793 | rtd->cpu_dai = cpu_dai; | |
435c5e25 | 794 | } |
6308419a | 795 | |
b19e6e7b MB |
796 | if (!rtd->cpu_dai) { |
797 | dev_dbg(card->dev, "CPU DAI %s not registered\n", | |
798 | dai_link->cpu_dai_name); | |
799 | return -EPROBE_DEFER; | |
f0fba2ad LG |
800 | } |
801 | ||
b19e6e7b | 802 | /* Find CODEC from registered CODECs */ |
f0fba2ad | 803 | list_for_each_entry(codec, &codec_list, list) { |
5a504963 SW |
804 | if (dai_link->codec_of_node) { |
805 | if (codec->dev->of_node != dai_link->codec_of_node) | |
806 | continue; | |
807 | } else { | |
808 | if (strcmp(codec->name, dai_link->codec_name)) | |
809 | continue; | |
810 | } | |
2610ab77 SW |
811 | |
812 | rtd->codec = codec; | |
813 | ||
814 | /* | |
815 | * CODEC found, so find CODEC DAI from registered DAIs from | |
816 | * this CODEC | |
817 | */ | |
818 | list_for_each_entry(codec_dai, &dai_list, list) { | |
819 | if (codec->dev == codec_dai->dev && | |
820 | !strcmp(codec_dai->name, | |
821 | dai_link->codec_dai_name)) { | |
f0fba2ad | 822 | |
2610ab77 | 823 | rtd->codec_dai = codec_dai; |
2610ab77 | 824 | } |
435c5e25 | 825 | } |
2610ab77 | 826 | |
b19e6e7b MB |
827 | if (!rtd->codec_dai) { |
828 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", | |
829 | dai_link->codec_dai_name); | |
830 | return -EPROBE_DEFER; | |
831 | } | |
f0fba2ad | 832 | } |
6b05eda6 | 833 | |
b19e6e7b MB |
834 | if (!rtd->codec) { |
835 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
836 | dai_link->codec_name); | |
837 | return -EPROBE_DEFER; | |
838 | } | |
848dd8be MB |
839 | |
840 | /* if there's no platform we match on the empty platform */ | |
841 | platform_name = dai_link->platform_name; | |
5a504963 | 842 | if (!platform_name && !dai_link->platform_of_node) |
848dd8be MB |
843 | platform_name = "snd-soc-dummy"; |
844 | ||
b19e6e7b | 845 | /* find one from the set of registered platforms */ |
f0fba2ad | 846 | list_for_each_entry(platform, &platform_list, list) { |
5a504963 SW |
847 | if (dai_link->platform_of_node) { |
848 | if (platform->dev->of_node != | |
849 | dai_link->platform_of_node) | |
850 | continue; | |
851 | } else { | |
852 | if (strcmp(platform->name, platform_name)) | |
853 | continue; | |
854 | } | |
2610ab77 SW |
855 | |
856 | rtd->platform = platform; | |
02a06d30 | 857 | } |
b19e6e7b MB |
858 | if (!rtd->platform) { |
859 | dev_dbg(card->dev, "platform %s not registered\n", | |
f0fba2ad | 860 | dai_link->platform_name); |
b19e6e7b | 861 | return -EPROBE_DEFER; |
f0fba2ad | 862 | } |
b19e6e7b MB |
863 | |
864 | card->num_rtd++; | |
865 | ||
866 | return 0; | |
f0fba2ad LG |
867 | } |
868 | ||
589c3563 JN |
869 | static void soc_remove_codec(struct snd_soc_codec *codec) |
870 | { | |
871 | int err; | |
872 | ||
873 | if (codec->driver->remove) { | |
874 | err = codec->driver->remove(codec); | |
875 | if (err < 0) | |
876 | dev_err(codec->dev, | |
877 | "asoc: failed to remove %s: %d\n", | |
878 | codec->name, err); | |
879 | } | |
880 | ||
881 | /* Make sure all DAPM widgets are freed */ | |
882 | snd_soc_dapm_free(&codec->dapm); | |
883 | ||
884 | soc_cleanup_codec_debugfs(codec); | |
885 | codec->probed = 0; | |
886 | list_del(&codec->card_list); | |
887 | module_put(codec->dev->driver->owner); | |
888 | } | |
889 | ||
0168bf0d | 890 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
891 | { |
892 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
893 | struct snd_soc_codec *codec = rtd->codec; | |
894 | struct snd_soc_platform *platform = rtd->platform; | |
895 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
896 | int err; | |
897 | ||
898 | /* unregister the rtd device */ | |
899 | if (rtd->dev_registered) { | |
36ae1a96 MB |
900 | device_remove_file(rtd->dev, &dev_attr_pmdown_time); |
901 | device_remove_file(rtd->dev, &dev_attr_codec_reg); | |
902 | device_unregister(rtd->dev); | |
f0fba2ad LG |
903 | rtd->dev_registered = 0; |
904 | } | |
905 | ||
906 | /* remove the CODEC DAI */ | |
0168bf0d LG |
907 | if (codec_dai && codec_dai->probed && |
908 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
909 | if (codec_dai->driver->remove) { |
910 | err = codec_dai->driver->remove(codec_dai); | |
911 | if (err < 0) | |
0837fc62 FE |
912 | pr_err("asoc: failed to remove %s: %d\n", |
913 | codec_dai->name, err); | |
6b05eda6 | 914 | } |
f0fba2ad LG |
915 | codec_dai->probed = 0; |
916 | list_del(&codec_dai->card_list); | |
917 | } | |
6b05eda6 | 918 | |
f0fba2ad | 919 | /* remove the platform */ |
0168bf0d LG |
920 | if (platform && platform->probed && |
921 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
922 | if (platform->driver->remove) { |
923 | err = platform->driver->remove(platform); | |
924 | if (err < 0) | |
0837fc62 FE |
925 | pr_err("asoc: failed to remove %s: %d\n", |
926 | platform->name, err); | |
f0fba2ad | 927 | } |
675c496b LG |
928 | |
929 | /* Make sure all DAPM widgets are freed */ | |
930 | snd_soc_dapm_free(&platform->dapm); | |
931 | ||
731f1ab2 | 932 | soc_cleanup_platform_debugfs(platform); |
f0fba2ad LG |
933 | platform->probed = 0; |
934 | list_del(&platform->card_list); | |
935 | module_put(platform->dev->driver->owner); | |
936 | } | |
435c5e25 | 937 | |
f0fba2ad | 938 | /* remove the CODEC */ |
0168bf0d LG |
939 | if (codec && codec->probed && |
940 | codec->driver->remove_order == order) | |
589c3563 | 941 | soc_remove_codec(codec); |
db2a4165 | 942 | |
f0fba2ad | 943 | /* remove the cpu_dai */ |
0168bf0d LG |
944 | if (cpu_dai && cpu_dai->probed && |
945 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
946 | if (cpu_dai->driver->remove) { |
947 | err = cpu_dai->driver->remove(cpu_dai); | |
948 | if (err < 0) | |
0837fc62 FE |
949 | pr_err("asoc: failed to remove %s: %d\n", |
950 | cpu_dai->name, err); | |
db2a4165 | 951 | } |
f0fba2ad LG |
952 | cpu_dai->probed = 0; |
953 | list_del(&cpu_dai->card_list); | |
954 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 955 | } |
f0fba2ad | 956 | } |
db2a4165 | 957 | |
0671fd8e KM |
958 | static void soc_remove_dai_links(struct snd_soc_card *card) |
959 | { | |
0168bf0d | 960 | int dai, order; |
0671fd8e | 961 | |
0168bf0d LG |
962 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
963 | order++) { | |
964 | for (dai = 0; dai < card->num_rtd; dai++) | |
965 | soc_remove_dai_link(card, dai, order); | |
966 | } | |
0671fd8e KM |
967 | card->num_rtd = 0; |
968 | } | |
969 | ||
ead9b919 JN |
970 | static void soc_set_name_prefix(struct snd_soc_card *card, |
971 | struct snd_soc_codec *codec) | |
972 | { | |
973 | int i; | |
974 | ||
ff819b83 | 975 | if (card->codec_conf == NULL) |
ead9b919 JN |
976 | return; |
977 | ||
ff819b83 DP |
978 | for (i = 0; i < card->num_configs; i++) { |
979 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
980 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
981 | codec->name_prefix = map->name_prefix; | |
982 | break; | |
983 | } | |
984 | } | |
985 | } | |
986 | ||
589c3563 JN |
987 | static int soc_probe_codec(struct snd_soc_card *card, |
988 | struct snd_soc_codec *codec) | |
989 | { | |
990 | int ret = 0; | |
89b95ac0 | 991 | const struct snd_soc_codec_driver *driver = codec->driver; |
888df395 | 992 | struct snd_soc_dai *dai; |
589c3563 JN |
993 | |
994 | codec->card = card; | |
995 | codec->dapm.card = card; | |
996 | soc_set_name_prefix(card, codec); | |
997 | ||
70d29331 JN |
998 | if (!try_module_get(codec->dev->driver->owner)) |
999 | return -ENODEV; | |
1000 | ||
d5d1e0be LPC |
1001 | soc_init_codec_debugfs(codec); |
1002 | ||
77530150 LPC |
1003 | if (driver->dapm_widgets) |
1004 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1005 | driver->num_dapm_widgets); | |
1006 | ||
888df395 MB |
1007 | /* Create DAPM widgets for each DAI stream */ |
1008 | list_for_each_entry(dai, &dai_list, list) { | |
1009 | if (dai->dev != codec->dev) | |
1010 | continue; | |
1011 | ||
1012 | snd_soc_dapm_new_dai_widgets(&codec->dapm, dai); | |
1013 | } | |
1014 | ||
33c5f969 MB |
1015 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
1016 | ||
89b95ac0 MB |
1017 | if (driver->probe) { |
1018 | ret = driver->probe(codec); | |
589c3563 JN |
1019 | if (ret < 0) { |
1020 | dev_err(codec->dev, | |
1021 | "asoc: failed to probe CODEC %s: %d\n", | |
1022 | codec->name, ret); | |
70d29331 | 1023 | goto err_probe; |
589c3563 JN |
1024 | } |
1025 | } | |
1026 | ||
b7af1daf | 1027 | if (driver->controls) |
022658be | 1028 | snd_soc_add_codec_controls(codec, driver->controls, |
b7af1daf | 1029 | driver->num_controls); |
89b95ac0 MB |
1030 | if (driver->dapm_routes) |
1031 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1032 | driver->num_dapm_routes); | |
1033 | ||
589c3563 JN |
1034 | /* mark codec as probed and add to card codec list */ |
1035 | codec->probed = 1; | |
1036 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1037 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1038 | |
70d29331 JN |
1039 | return 0; |
1040 | ||
1041 | err_probe: | |
d5d1e0be | 1042 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
1043 | module_put(codec->dev->driver->owner); |
1044 | ||
589c3563 JN |
1045 | return ret; |
1046 | } | |
1047 | ||
956245e9 LG |
1048 | static int soc_probe_platform(struct snd_soc_card *card, |
1049 | struct snd_soc_platform *platform) | |
1050 | { | |
1051 | int ret = 0; | |
1052 | const struct snd_soc_platform_driver *driver = platform->driver; | |
be09ad90 | 1053 | struct snd_soc_dai *dai; |
956245e9 LG |
1054 | |
1055 | platform->card = card; | |
b7950641 | 1056 | platform->dapm.card = card; |
956245e9 LG |
1057 | |
1058 | if (!try_module_get(platform->dev->driver->owner)) | |
1059 | return -ENODEV; | |
1060 | ||
731f1ab2 SG |
1061 | soc_init_platform_debugfs(platform); |
1062 | ||
cb2cf612 LG |
1063 | if (driver->dapm_widgets) |
1064 | snd_soc_dapm_new_controls(&platform->dapm, | |
1065 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1066 | ||
be09ad90 LG |
1067 | /* Create DAPM widgets for each DAI stream */ |
1068 | list_for_each_entry(dai, &dai_list, list) { | |
1069 | if (dai->dev != platform->dev) | |
1070 | continue; | |
1071 | ||
1072 | snd_soc_dapm_new_dai_widgets(&platform->dapm, dai); | |
1073 | } | |
1074 | ||
956245e9 LG |
1075 | if (driver->probe) { |
1076 | ret = driver->probe(platform); | |
1077 | if (ret < 0) { | |
1078 | dev_err(platform->dev, | |
1079 | "asoc: failed to probe platform %s: %d\n", | |
1080 | platform->name, ret); | |
1081 | goto err_probe; | |
1082 | } | |
1083 | } | |
1084 | ||
cb2cf612 LG |
1085 | if (driver->controls) |
1086 | snd_soc_add_platform_controls(platform, driver->controls, | |
1087 | driver->num_controls); | |
1088 | if (driver->dapm_routes) | |
1089 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1090 | driver->num_dapm_routes); | |
1091 | ||
956245e9 LG |
1092 | /* mark platform as probed and add to card platform list */ |
1093 | platform->probed = 1; | |
1094 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1095 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1096 | |
1097 | return 0; | |
1098 | ||
1099 | err_probe: | |
02db1103 | 1100 | soc_cleanup_platform_debugfs(platform); |
956245e9 LG |
1101 | module_put(platform->dev->driver->owner); |
1102 | ||
1103 | return ret; | |
1104 | } | |
1105 | ||
36ae1a96 MB |
1106 | static void rtd_release(struct device *dev) |
1107 | { | |
1108 | kfree(dev); | |
1109 | } | |
f0fba2ad | 1110 | |
589c3563 JN |
1111 | static int soc_post_component_init(struct snd_soc_card *card, |
1112 | struct snd_soc_codec *codec, | |
1113 | int num, int dailess) | |
1114 | { | |
1115 | struct snd_soc_dai_link *dai_link = NULL; | |
1116 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1117 | struct snd_soc_pcm_runtime *rtd; | |
1118 | const char *temp, *name; | |
1119 | int ret = 0; | |
1120 | ||
1121 | if (!dailess) { | |
1122 | dai_link = &card->dai_link[num]; | |
1123 | rtd = &card->rtd[num]; | |
1124 | name = dai_link->name; | |
1125 | } else { | |
1126 | aux_dev = &card->aux_dev[num]; | |
1127 | rtd = &card->rtd_aux[num]; | |
1128 | name = aux_dev->name; | |
1129 | } | |
0962bb21 | 1130 | rtd->card = card; |
589c3563 | 1131 | |
4b1cfcb4 MB |
1132 | /* Make sure all DAPM widgets are instantiated */ |
1133 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1134 | ||
589c3563 JN |
1135 | /* machine controls, routes and widgets are not prefixed */ |
1136 | temp = codec->name_prefix; | |
1137 | codec->name_prefix = NULL; | |
1138 | ||
1139 | /* do machine specific initialization */ | |
1140 | if (!dailess && dai_link->init) | |
1141 | ret = dai_link->init(rtd); | |
1142 | else if (dailess && aux_dev->init) | |
1143 | ret = aux_dev->init(&codec->dapm); | |
1144 | if (ret < 0) { | |
1145 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1146 | return ret; | |
1147 | } | |
1148 | codec->name_prefix = temp; | |
1149 | ||
589c3563 JN |
1150 | /* register the rtd device */ |
1151 | rtd->codec = codec; | |
36ae1a96 MB |
1152 | |
1153 | rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL); | |
1154 | if (!rtd->dev) | |
1155 | return -ENOMEM; | |
1156 | device_initialize(rtd->dev); | |
1157 | rtd->dev->parent = card->dev; | |
1158 | rtd->dev->release = rtd_release; | |
1159 | rtd->dev->init_name = name; | |
1160 | dev_set_drvdata(rtd->dev, rtd); | |
b8c0dab9 | 1161 | mutex_init(&rtd->pcm_mutex); |
36ae1a96 | 1162 | ret = device_add(rtd->dev); |
589c3563 JN |
1163 | if (ret < 0) { |
1164 | dev_err(card->dev, | |
1165 | "asoc: failed to register runtime device: %d\n", ret); | |
1166 | return ret; | |
1167 | } | |
1168 | rtd->dev_registered = 1; | |
1169 | ||
1170 | /* add DAPM sysfs entries for this codec */ | |
36ae1a96 | 1171 | ret = snd_soc_dapm_sys_add(rtd->dev); |
589c3563 JN |
1172 | if (ret < 0) |
1173 | dev_err(codec->dev, | |
1174 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1175 | ret); | |
1176 | ||
1177 | /* add codec sysfs entries */ | |
36ae1a96 | 1178 | ret = device_create_file(rtd->dev, &dev_attr_codec_reg); |
589c3563 JN |
1179 | if (ret < 0) |
1180 | dev_err(codec->dev, | |
1181 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1182 | ||
1183 | return 0; | |
1184 | } | |
1185 | ||
0168bf0d | 1186 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1187 | { |
1188 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1189 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1190 | struct snd_soc_codec *codec = rtd->codec; | |
1191 | struct snd_soc_platform *platform = rtd->platform; | |
1192 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1193 | int ret; | |
1194 | ||
0168bf0d LG |
1195 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1196 | card->name, num, order); | |
f0fba2ad LG |
1197 | |
1198 | /* config components */ | |
1199 | codec_dai->codec = codec; | |
f0fba2ad | 1200 | cpu_dai->platform = platform; |
f0fba2ad LG |
1201 | codec_dai->card = card; |
1202 | cpu_dai->card = card; | |
1203 | ||
1204 | /* set default power off timeout */ | |
1205 | rtd->pmdown_time = pmdown_time; | |
1206 | ||
1207 | /* probe the cpu_dai */ | |
0168bf0d LG |
1208 | if (!cpu_dai->probed && |
1209 | cpu_dai->driver->probe_order == order) { | |
be09ad90 | 1210 | cpu_dai->dapm.card = card; |
61b61e3c LG |
1211 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1212 | return -ENODEV; | |
1213 | ||
be09ad90 LG |
1214 | snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai); |
1215 | ||
f0fba2ad LG |
1216 | if (cpu_dai->driver->probe) { |
1217 | ret = cpu_dai->driver->probe(cpu_dai); | |
1218 | if (ret < 0) { | |
0837fc62 FE |
1219 | pr_err("asoc: failed to probe CPU DAI %s: %d\n", |
1220 | cpu_dai->name, ret); | |
61b61e3c | 1221 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1222 | return ret; |
1223 | } | |
1224 | } | |
1225 | cpu_dai->probed = 1; | |
1c8371d6 | 1226 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1227 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1228 | } |
1229 | ||
f0fba2ad | 1230 | /* probe the CODEC */ |
0168bf0d LG |
1231 | if (!codec->probed && |
1232 | codec->driver->probe_order == order) { | |
589c3563 JN |
1233 | ret = soc_probe_codec(card, codec); |
1234 | if (ret < 0) | |
1235 | return ret; | |
db2a4165 FM |
1236 | } |
1237 | ||
f0fba2ad | 1238 | /* probe the platform */ |
0168bf0d LG |
1239 | if (!platform->probed && |
1240 | platform->driver->probe_order == order) { | |
956245e9 LG |
1241 | ret = soc_probe_platform(card, platform); |
1242 | if (ret < 0) | |
1243 | return ret; | |
f0fba2ad | 1244 | } |
6ed25978 | 1245 | |
f0fba2ad | 1246 | /* probe the CODEC DAI */ |
0168bf0d | 1247 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1248 | if (codec_dai->driver->probe) { |
1249 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1250 | if (ret < 0) { |
0837fc62 FE |
1251 | pr_err("asoc: failed to probe CODEC DAI %s: %d\n", |
1252 | codec_dai->name, ret); | |
f0fba2ad | 1253 | return ret; |
fe3e78e0 MB |
1254 | } |
1255 | } | |
f0fba2ad | 1256 | |
1c8371d6 | 1257 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1258 | codec_dai->probed = 1; |
1259 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1260 | } |
1261 | ||
0168bf0d LG |
1262 | /* complete DAI probe during last probe */ |
1263 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1264 | return 0; | |
1265 | ||
589c3563 JN |
1266 | ret = soc_post_component_init(card, codec, num, 0); |
1267 | if (ret) | |
f0fba2ad | 1268 | return ret; |
fe3e78e0 | 1269 | |
36ae1a96 | 1270 | ret = device_create_file(rtd->dev, &dev_attr_pmdown_time); |
f0fba2ad | 1271 | if (ret < 0) |
0837fc62 | 1272 | pr_warn("asoc: failed to add pmdown_time sysfs:%d\n", ret); |
f0fba2ad | 1273 | |
f0fba2ad LG |
1274 | /* create the pcm */ |
1275 | ret = soc_new_pcm(rtd, num); | |
1276 | if (ret < 0) { | |
0837fc62 FE |
1277 | pr_err("asoc: can't create pcm %s :%d\n", |
1278 | dai_link->stream_name, ret); | |
f0fba2ad LG |
1279 | return ret; |
1280 | } | |
1281 | ||
1282 | /* add platform data for AC97 devices */ | |
1283 | if (rtd->codec_dai->driver->ac97_control) | |
1284 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1285 | ||
1286 | return 0; | |
1287 | } | |
1288 | ||
fe3e78e0 | 1289 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1290 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1291 | { | |
1292 | int ret; | |
1293 | ||
fe3e78e0 MB |
1294 | /* Only instantiate AC97 if not already done by the adaptor |
1295 | * for the generic AC97 subsystem. | |
1296 | */ | |
f0fba2ad | 1297 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1298 | /* |
1299 | * It is possible that the AC97 device is already registered to | |
1300 | * the device subsystem. This happens when the device is created | |
1301 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1302 | * is the generic AC97 glue but others migh emerge. | |
1303 | * | |
1304 | * In those cases we don't try to register the device again. | |
1305 | */ | |
1306 | if (!rtd->codec->ac97_created) | |
1307 | return 0; | |
f0fba2ad LG |
1308 | |
1309 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 | 1310 | if (ret < 0) { |
0837fc62 | 1311 | pr_err("asoc: AC97 device register failed:%d\n", ret); |
f0fba2ad | 1312 | return ret; |
fe3e78e0 | 1313 | } |
f0fba2ad LG |
1314 | |
1315 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1316 | } |
f0fba2ad LG |
1317 | return 0; |
1318 | } | |
1319 | ||
1320 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1321 | { | |
1322 | if (codec->ac97_registered) { | |
1323 | soc_ac97_dev_unregister(codec); | |
1324 | codec->ac97_registered = 0; | |
1325 | } | |
1326 | } | |
fe3e78e0 MB |
1327 | #endif |
1328 | ||
b19e6e7b MB |
1329 | static int soc_check_aux_dev(struct snd_soc_card *card, int num) |
1330 | { | |
1331 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
1332 | struct snd_soc_codec *codec; | |
1333 | ||
1334 | /* find CODEC from registered CODECs*/ | |
1335 | list_for_each_entry(codec, &codec_list, list) { | |
1336 | if (!strcmp(codec->name, aux_dev->codec_name)) | |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | return -EPROBE_DEFER; | |
1341 | } | |
1342 | ||
2eea392d JN |
1343 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1344 | { | |
1345 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1346 | struct snd_soc_codec *codec; |
676ad98a | 1347 | int ret = -ENODEV; |
2eea392d JN |
1348 | |
1349 | /* find CODEC from registered CODECs*/ | |
1350 | list_for_each_entry(codec, &codec_list, list) { | |
1351 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1352 | if (codec->probed) { | |
1353 | dev_err(codec->dev, | |
1354 | "asoc: codec already probed"); | |
1355 | ret = -EBUSY; | |
1356 | goto out; | |
1357 | } | |
676ad98a | 1358 | goto found; |
2eea392d JN |
1359 | } |
1360 | } | |
676ad98a JN |
1361 | /* codec not found */ |
1362 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
b19e6e7b | 1363 | return -EPROBE_DEFER; |
2eea392d | 1364 | |
676ad98a | 1365 | found: |
589c3563 | 1366 | ret = soc_probe_codec(card, codec); |
2eea392d | 1367 | if (ret < 0) |
589c3563 | 1368 | return ret; |
2eea392d | 1369 | |
589c3563 | 1370 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1371 | |
1372 | out: | |
1373 | return ret; | |
1374 | } | |
1375 | ||
1376 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1377 | { | |
1378 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1379 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1380 | |
1381 | /* unregister the rtd device */ | |
1382 | if (rtd->dev_registered) { | |
36ae1a96 MB |
1383 | device_remove_file(rtd->dev, &dev_attr_codec_reg); |
1384 | device_del(rtd->dev); | |
2eea392d JN |
1385 | rtd->dev_registered = 0; |
1386 | } | |
1387 | ||
589c3563 JN |
1388 | if (codec && codec->probed) |
1389 | soc_remove_codec(codec); | |
2eea392d JN |
1390 | } |
1391 | ||
fdf0f54d DP |
1392 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1393 | enum snd_soc_compress_type compress_type) | |
1394 | { | |
1395 | int ret; | |
1396 | ||
1397 | if (codec->cache_init) | |
1398 | return 0; | |
1399 | ||
1400 | /* override the compress_type if necessary */ | |
1401 | if (compress_type && codec->compress_type != compress_type) | |
1402 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1403 | ret = snd_soc_cache_init(codec); |
1404 | if (ret < 0) { | |
1405 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1406 | ret); | |
1407 | return ret; | |
1408 | } | |
1409 | codec->cache_init = 1; | |
1410 | return 0; | |
1411 | } | |
1412 | ||
b19e6e7b | 1413 | static int snd_soc_instantiate_card(struct snd_soc_card *card) |
f0fba2ad | 1414 | { |
fdf0f54d DP |
1415 | struct snd_soc_codec *codec; |
1416 | struct snd_soc_codec_conf *codec_conf; | |
1417 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1418 | struct snd_soc_dai_link *dai_link; |
0168bf0d | 1419 | int ret, i, order; |
fe3e78e0 | 1420 | |
01b9d99a | 1421 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT); |
dbe21408 | 1422 | |
f0fba2ad | 1423 | /* bind DAIs */ |
b19e6e7b MB |
1424 | for (i = 0; i < card->num_links; i++) { |
1425 | ret = soc_bind_dai_link(card, i); | |
1426 | if (ret != 0) | |
1427 | goto base_error; | |
1428 | } | |
fe3e78e0 | 1429 | |
b19e6e7b MB |
1430 | /* check aux_devs too */ |
1431 | for (i = 0; i < card->num_aux_devs; i++) { | |
1432 | ret = soc_check_aux_dev(card, i); | |
1433 | if (ret != 0) | |
1434 | goto base_error; | |
f0fba2ad | 1435 | } |
435c5e25 | 1436 | |
fdf0f54d DP |
1437 | /* initialize the register cache for each available codec */ |
1438 | list_for_each_entry(codec, &codec_list, list) { | |
1439 | if (codec->cache_init) | |
1440 | continue; | |
861f2faf DP |
1441 | /* by default we don't override the compress_type */ |
1442 | compress_type = 0; | |
fdf0f54d DP |
1443 | /* check to see if we need to override the compress_type */ |
1444 | for (i = 0; i < card->num_configs; ++i) { | |
1445 | codec_conf = &card->codec_conf[i]; | |
1446 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1447 | compress_type = codec_conf->compress_type; | |
1448 | if (compress_type && compress_type | |
1449 | != codec->compress_type) | |
1450 | break; | |
1451 | } | |
1452 | } | |
fdf0f54d | 1453 | ret = snd_soc_init_codec_cache(codec, compress_type); |
b19e6e7b MB |
1454 | if (ret < 0) |
1455 | goto base_error; | |
fdf0f54d DP |
1456 | } |
1457 | ||
f0fba2ad LG |
1458 | /* card bind complete so register a sound card */ |
1459 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1460 | card->owner, 0, &card->snd_card); | |
1461 | if (ret < 0) { | |
0837fc62 FE |
1462 | pr_err("asoc: can't create sound card for card %s: %d\n", |
1463 | card->name, ret); | |
b19e6e7b | 1464 | goto base_error; |
f0fba2ad LG |
1465 | } |
1466 | card->snd_card->dev = card->dev; | |
1467 | ||
e37a4970 MB |
1468 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1469 | card->dapm.dev = card->dev; | |
1470 | card->dapm.card = card; | |
1471 | list_add(&card->dapm.list, &card->dapm_list); | |
1472 | ||
d5d1e0be LPC |
1473 | #ifdef CONFIG_DEBUG_FS |
1474 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1475 | #endif | |
1476 | ||
88ee1c61 | 1477 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1478 | /* deferred resume work */ |
1479 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1480 | #endif | |
db2a4165 | 1481 | |
9a841ebb MB |
1482 | if (card->dapm_widgets) |
1483 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1484 | card->num_dapm_widgets); | |
1485 | ||
f0fba2ad LG |
1486 | /* initialise the sound card only once */ |
1487 | if (card->probe) { | |
e7361ec4 | 1488 | ret = card->probe(card); |
f0fba2ad LG |
1489 | if (ret < 0) |
1490 | goto card_probe_error; | |
1491 | } | |
fe3e78e0 | 1492 | |
0168bf0d LG |
1493 | /* early DAI link probe */ |
1494 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1495 | order++) { | |
1496 | for (i = 0; i < card->num_links; i++) { | |
1497 | ret = soc_probe_dai_link(card, i, order); | |
1498 | if (ret < 0) { | |
1499 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1500 | card->name, ret); |
0168bf0d LG |
1501 | goto probe_dai_err; |
1502 | } | |
f0fba2ad LG |
1503 | } |
1504 | } | |
db2a4165 | 1505 | |
2eea392d JN |
1506 | for (i = 0; i < card->num_aux_devs; i++) { |
1507 | ret = soc_probe_aux_dev(card, i); | |
1508 | if (ret < 0) { | |
1509 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1510 | card->name, ret); | |
1511 | goto probe_aux_dev_err; | |
1512 | } | |
1513 | } | |
1514 | ||
888df395 MB |
1515 | snd_soc_dapm_link_dai_widgets(card); |
1516 | ||
b7af1daf | 1517 | if (card->controls) |
022658be | 1518 | snd_soc_add_card_controls(card, card->controls, card->num_controls); |
b7af1daf | 1519 | |
b8ad29de MB |
1520 | if (card->dapm_routes) |
1521 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1522 | card->num_dapm_routes); | |
1523 | ||
b90d2f90 MB |
1524 | snd_soc_dapm_new_widgets(&card->dapm); |
1525 | ||
75d9ac46 MB |
1526 | for (i = 0; i < card->num_links; i++) { |
1527 | dai_link = &card->dai_link[i]; | |
1528 | ||
1529 | if (dai_link->dai_fmt) { | |
1530 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, | |
1531 | dai_link->dai_fmt); | |
5e4ba569 | 1532 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1533 | dev_warn(card->rtd[i].codec_dai->dev, |
1534 | "Failed to set DAI format: %d\n", | |
1535 | ret); | |
1536 | ||
1537 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
1538 | dai_link->dai_fmt); | |
5e4ba569 | 1539 | if (ret != 0 && ret != -ENOTSUPP) |
75d9ac46 MB |
1540 | dev_warn(card->rtd[i].cpu_dai->dev, |
1541 | "Failed to set DAI format: %d\n", | |
1542 | ret); | |
1543 | } | |
1544 | } | |
1545 | ||
f0fba2ad | 1546 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1547 | "%s", card->name); |
22de71ba LG |
1548 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1549 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1550 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1551 | "%s", card->driver_name ? card->driver_name : card->name); | |
1552 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1553 | switch (card->snd_card->driver[i]) { | |
1554 | case '_': | |
1555 | case '-': | |
1556 | case '\0': | |
1557 | break; | |
1558 | default: | |
1559 | if (!isalnum(card->snd_card->driver[i])) | |
1560 | card->snd_card->driver[i] = '_'; | |
1561 | break; | |
1562 | } | |
1563 | } | |
f0fba2ad | 1564 | |
28e9ad92 MB |
1565 | if (card->late_probe) { |
1566 | ret = card->late_probe(card); | |
1567 | if (ret < 0) { | |
1568 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1569 | card->name, ret); | |
1570 | goto probe_aux_dev_err; | |
1571 | } | |
1572 | } | |
1573 | ||
2dc00213 MB |
1574 | snd_soc_dapm_new_widgets(&card->dapm); |
1575 | ||
1633281b | 1576 | if (card->fully_routed) |
b05d8dc1 | 1577 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1578 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1579 | ||
f0fba2ad LG |
1580 | ret = snd_card_register(card->snd_card); |
1581 | if (ret < 0) { | |
0837fc62 FE |
1582 | pr_err("asoc: failed to register soundcard for %s: %d\n", |
1583 | card->name, ret); | |
6b3ed785 | 1584 | goto probe_aux_dev_err; |
db2a4165 FM |
1585 | } |
1586 | ||
f0fba2ad LG |
1587 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1588 | /* register any AC97 codecs */ | |
1589 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1590 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1591 | if (ret < 0) { | |
0837fc62 FE |
1592 | pr_err("asoc: failed to register AC97 %s: %d\n", |
1593 | card->name, ret); | |
6b3ed785 | 1594 | while (--i >= 0) |
7d8316df | 1595 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1596 | goto probe_aux_dev_err; |
f0fba2ad | 1597 | } |
6b3ed785 | 1598 | } |
f0fba2ad LG |
1599 | #endif |
1600 | ||
1601 | card->instantiated = 1; | |
4f4c0072 | 1602 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad | 1603 | mutex_unlock(&card->mutex); |
b19e6e7b MB |
1604 | |
1605 | return 0; | |
f0fba2ad | 1606 | |
2eea392d JN |
1607 | probe_aux_dev_err: |
1608 | for (i = 0; i < card->num_aux_devs; i++) | |
1609 | soc_remove_aux_dev(card, i); | |
1610 | ||
f0fba2ad | 1611 | probe_dai_err: |
0671fd8e | 1612 | soc_remove_dai_links(card); |
f0fba2ad LG |
1613 | |
1614 | card_probe_error: | |
87506549 | 1615 | if (card->remove) |
e7361ec4 | 1616 | card->remove(card); |
f0fba2ad LG |
1617 | |
1618 | snd_card_free(card->snd_card); | |
1619 | ||
b19e6e7b | 1620 | base_error: |
f0fba2ad | 1621 | mutex_unlock(&card->mutex); |
db2a4165 | 1622 | |
b19e6e7b | 1623 | return ret; |
435c5e25 MB |
1624 | } |
1625 | ||
1626 | /* probes a new socdev */ | |
1627 | static int soc_probe(struct platform_device *pdev) | |
1628 | { | |
f0fba2ad | 1629 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1630 | int ret = 0; |
435c5e25 | 1631 | |
70a7ca34 VK |
1632 | /* |
1633 | * no card, so machine driver should be registering card | |
1634 | * we should not be here in that case so ret error | |
1635 | */ | |
1636 | if (!card) | |
1637 | return -EINVAL; | |
1638 | ||
fe4085e8 MB |
1639 | dev_warn(&pdev->dev, |
1640 | "ASoC machine %s should use snd_soc_register_card()\n", | |
1641 | card->name); | |
1642 | ||
435c5e25 MB |
1643 | /* Bodge while we unpick instantiation */ |
1644 | card->dev = &pdev->dev; | |
f0fba2ad | 1645 | |
435c5e25 MB |
1646 | ret = snd_soc_register_card(card); |
1647 | if (ret != 0) { | |
1648 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1649 | return ret; | |
1650 | } | |
1651 | ||
1652 | return 0; | |
db2a4165 FM |
1653 | } |
1654 | ||
b0e26485 | 1655 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1656 | { |
1657 | int i; | |
db2a4165 | 1658 | |
b0e26485 VK |
1659 | /* make sure any delayed work runs */ |
1660 | for (i = 0; i < card->num_rtd; i++) { | |
1661 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1662 | flush_delayed_work_sync(&rtd->delayed_work); | |
1663 | } | |
914dc182 | 1664 | |
b0e26485 VK |
1665 | /* remove auxiliary devices */ |
1666 | for (i = 0; i < card->num_aux_devs; i++) | |
1667 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1668 | |
b0e26485 | 1669 | /* remove and free each DAI */ |
0671fd8e | 1670 | soc_remove_dai_links(card); |
2eea392d | 1671 | |
b0e26485 | 1672 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1673 | |
b0e26485 VK |
1674 | /* remove the card */ |
1675 | if (card->remove) | |
e7361ec4 | 1676 | card->remove(card); |
a6052154 | 1677 | |
0aaae527 LPC |
1678 | snd_soc_dapm_free(&card->dapm); |
1679 | ||
b0e26485 VK |
1680 | snd_card_free(card->snd_card); |
1681 | return 0; | |
1682 | ||
1683 | } | |
1684 | ||
1685 | /* removes a socdev */ | |
1686 | static int soc_remove(struct platform_device *pdev) | |
1687 | { | |
1688 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1689 | |
c5af3a2e | 1690 | snd_soc_unregister_card(card); |
db2a4165 FM |
1691 | return 0; |
1692 | } | |
1693 | ||
6f8ab4ac | 1694 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1695 | { |
6f8ab4ac | 1696 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1697 | int i; |
51737470 MB |
1698 | |
1699 | if (!card->instantiated) | |
416356fc | 1700 | return 0; |
51737470 MB |
1701 | |
1702 | /* Flush out pmdown_time work - we actually do want to run it | |
1703 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1704 | for (i = 0; i < card->num_rtd; i++) { |
1705 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1706 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1707 | } |
51737470 | 1708 | |
f0fba2ad | 1709 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1710 | |
1711 | return 0; | |
51737470 | 1712 | } |
6f8ab4ac | 1713 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1714 | |
6f8ab4ac | 1715 | const struct dev_pm_ops snd_soc_pm_ops = { |
b1dd5897 VK |
1716 | .suspend = snd_soc_suspend, |
1717 | .resume = snd_soc_resume, | |
1718 | .freeze = snd_soc_suspend, | |
1719 | .thaw = snd_soc_resume, | |
6f8ab4ac | 1720 | .poweroff = snd_soc_poweroff, |
b1dd5897 | 1721 | .restore = snd_soc_resume, |
416356fc | 1722 | }; |
deb2607e | 1723 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1724 | |
db2a4165 FM |
1725 | /* ASoC platform driver */ |
1726 | static struct platform_driver soc_driver = { | |
1727 | .driver = { | |
1728 | .name = "soc-audio", | |
8b45a209 | 1729 | .owner = THIS_MODULE, |
6f8ab4ac | 1730 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1731 | }, |
1732 | .probe = soc_probe, | |
1733 | .remove = soc_remove, | |
db2a4165 FM |
1734 | }; |
1735 | ||
096e49d5 MB |
1736 | /** |
1737 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1738 | * | |
1739 | * @codec: CODEC to query. | |
1740 | * @reg: Register to query. | |
1741 | * | |
1742 | * Boolean function indiciating if a CODEC register is volatile. | |
1743 | */ | |
181e055e MB |
1744 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1745 | unsigned int reg) | |
096e49d5 | 1746 | { |
1500b7b5 DP |
1747 | if (codec->volatile_register) |
1748 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1749 | else |
1750 | return 0; | |
1751 | } | |
1752 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1753 | ||
239c9706 DP |
1754 | /** |
1755 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1756 | * | |
1757 | * @codec: CODEC to query. | |
1758 | * @reg: Register to query. | |
1759 | * | |
1760 | * Boolean function indicating if a CODEC register is readable. | |
1761 | */ | |
1762 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1763 | unsigned int reg) | |
1764 | { | |
1765 | if (codec->readable_register) | |
1766 | return codec->readable_register(codec, reg); | |
1767 | else | |
63fa0a28 | 1768 | return 1; |
239c9706 DP |
1769 | } |
1770 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1771 | ||
1772 | /** | |
1773 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1774 | * | |
1775 | * @codec: CODEC to query. | |
1776 | * @reg: Register to query. | |
1777 | * | |
1778 | * Boolean function indicating if a CODEC register is writable. | |
1779 | */ | |
1780 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1781 | unsigned int reg) | |
1782 | { | |
1783 | if (codec->writable_register) | |
1784 | return codec->writable_register(codec, reg); | |
1785 | else | |
63fa0a28 | 1786 | return 1; |
239c9706 DP |
1787 | } |
1788 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1789 | ||
f1442bc1 LG |
1790 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1791 | unsigned int reg) | |
1792 | { | |
1793 | unsigned int ret; | |
1794 | ||
1795 | if (!platform->driver->read) { | |
1796 | dev_err(platform->dev, "platform has no read back\n"); | |
1797 | return -1; | |
1798 | } | |
1799 | ||
1800 | ret = platform->driver->read(platform, reg); | |
1801 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1802 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1803 | |
1804 | return ret; | |
1805 | } | |
1806 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1807 | ||
1808 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1809 | unsigned int reg, unsigned int val) | |
1810 | { | |
1811 | if (!platform->driver->write) { | |
1812 | dev_err(platform->dev, "platform has no write back\n"); | |
1813 | return -1; | |
1814 | } | |
1815 | ||
1816 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1817 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1818 | return platform->driver->write(platform, reg, val); |
1819 | } | |
1820 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1821 | ||
db2a4165 FM |
1822 | /** |
1823 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1824 | * @codec: audio codec | |
1825 | * @ops: AC97 bus operations | |
1826 | * @num: AC97 codec number | |
1827 | * | |
1828 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1829 | */ | |
1830 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1831 | struct snd_ac97_bus_ops *ops, int num) | |
1832 | { | |
1833 | mutex_lock(&codec->mutex); | |
1834 | ||
1835 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1836 | if (codec->ac97 == NULL) { | |
1837 | mutex_unlock(&codec->mutex); | |
1838 | return -ENOMEM; | |
1839 | } | |
1840 | ||
1841 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1842 | if (codec->ac97->bus == NULL) { | |
1843 | kfree(codec->ac97); | |
1844 | codec->ac97 = NULL; | |
1845 | mutex_unlock(&codec->mutex); | |
1846 | return -ENOMEM; | |
1847 | } | |
1848 | ||
1849 | codec->ac97->bus->ops = ops; | |
1850 | codec->ac97->num = num; | |
0562f788 MW |
1851 | |
1852 | /* | |
1853 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1854 | * device will be registered with the device subsystem later on. | |
1855 | */ | |
1856 | codec->ac97_created = 1; | |
1857 | ||
db2a4165 FM |
1858 | mutex_unlock(&codec->mutex); |
1859 | return 0; | |
1860 | } | |
1861 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1862 | ||
1863 | /** | |
1864 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1865 | * @codec: audio codec | |
1866 | * | |
1867 | * Frees AC97 codec device resources. | |
1868 | */ | |
1869 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1870 | { | |
1871 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1872 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1873 | soc_unregister_ac97_dai_link(codec); | |
1874 | #endif | |
db2a4165 FM |
1875 | kfree(codec->ac97->bus); |
1876 | kfree(codec->ac97); | |
1877 | codec->ac97 = NULL; | |
0562f788 | 1878 | codec->ac97_created = 0; |
db2a4165 FM |
1879 | mutex_unlock(&codec->mutex); |
1880 | } | |
1881 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1882 | ||
c3753707 MB |
1883 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1884 | { | |
1885 | unsigned int ret; | |
1886 | ||
c3acec26 | 1887 | ret = codec->read(codec, reg); |
c3753707 | 1888 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1889 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1890 | |
1891 | return ret; | |
1892 | } | |
1893 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1894 | ||
1895 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1896 | unsigned int reg, unsigned int val) | |
1897 | { | |
1898 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 1899 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 1900 | return codec->write(codec, reg, val); |
c3753707 MB |
1901 | } |
1902 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1903 | ||
5fb609d4 DP |
1904 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
1905 | unsigned int reg, const void *data, size_t len) | |
1906 | { | |
1907 | return codec->bulk_write_raw(codec, reg, data, len); | |
1908 | } | |
1909 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
1910 | ||
db2a4165 FM |
1911 | /** |
1912 | * snd_soc_update_bits - update codec register bits | |
1913 | * @codec: audio codec | |
1914 | * @reg: codec register | |
1915 | * @mask: register mask | |
1916 | * @value: new value | |
1917 | * | |
1918 | * Writes new register value. | |
1919 | * | |
180c329d | 1920 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
1921 | */ |
1922 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1923 | unsigned int mask, unsigned int value) |
db2a4165 | 1924 | { |
8a713da8 | 1925 | bool change; |
46f5822f | 1926 | unsigned int old, new; |
180c329d TT |
1927 | int ret; |
1928 | ||
8a713da8 MB |
1929 | if (codec->using_regmap) { |
1930 | ret = regmap_update_bits_check(codec->control_data, reg, | |
1931 | mask, value, &change); | |
1932 | } else { | |
1933 | ret = snd_soc_read(codec, reg); | |
180c329d TT |
1934 | if (ret < 0) |
1935 | return ret; | |
8a713da8 MB |
1936 | |
1937 | old = ret; | |
1938 | new = (old & ~mask) | (value & mask); | |
1939 | change = old != new; | |
1940 | if (change) | |
1941 | ret = snd_soc_write(codec, reg, new); | |
180c329d | 1942 | } |
db2a4165 | 1943 | |
8a713da8 MB |
1944 | if (ret < 0) |
1945 | return ret; | |
1946 | ||
db2a4165 FM |
1947 | return change; |
1948 | } | |
1949 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1950 | ||
6c508c62 EN |
1951 | /** |
1952 | * snd_soc_update_bits_locked - update codec register bits | |
1953 | * @codec: audio codec | |
1954 | * @reg: codec register | |
1955 | * @mask: register mask | |
1956 | * @value: new value | |
1957 | * | |
1958 | * Writes new register value, and takes the codec mutex. | |
1959 | * | |
1960 | * Returns 1 for change else 0. | |
1961 | */ | |
dd1b3d53 MB |
1962 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1963 | unsigned short reg, unsigned int mask, | |
1964 | unsigned int value) | |
6c508c62 EN |
1965 | { |
1966 | int change; | |
1967 | ||
1968 | mutex_lock(&codec->mutex); | |
1969 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1970 | mutex_unlock(&codec->mutex); | |
1971 | ||
1972 | return change; | |
1973 | } | |
dd1b3d53 | 1974 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1975 | |
db2a4165 FM |
1976 | /** |
1977 | * snd_soc_test_bits - test register for change | |
1978 | * @codec: audio codec | |
1979 | * @reg: codec register | |
1980 | * @mask: register mask | |
1981 | * @value: new value | |
1982 | * | |
1983 | * Tests a register with a new value and checks if the new value is | |
1984 | * different from the old value. | |
1985 | * | |
1986 | * Returns 1 for change else 0. | |
1987 | */ | |
1988 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1989 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1990 | { |
1991 | int change; | |
46f5822f | 1992 | unsigned int old, new; |
db2a4165 | 1993 | |
db2a4165 FM |
1994 | old = snd_soc_read(codec, reg); |
1995 | new = (old & ~mask) | value; | |
1996 | change = old != new; | |
db2a4165 FM |
1997 | |
1998 | return change; | |
1999 | } | |
2000 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2001 | ||
db2a4165 FM |
2002 | /** |
2003 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2004 | * @substream: the pcm substream | |
2005 | * @hw: the hardware parameters | |
2006 | * | |
2007 | * Sets the substream runtime hardware parameters. | |
2008 | */ | |
2009 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2010 | const struct snd_pcm_hardware *hw) | |
2011 | { | |
2012 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2013 | runtime->hw.info = hw->info; | |
2014 | runtime->hw.formats = hw->formats; | |
2015 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2016 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2017 | runtime->hw.periods_min = hw->periods_min; | |
2018 | runtime->hw.periods_max = hw->periods_max; | |
2019 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2020 | runtime->hw.fifo_size = hw->fifo_size; | |
2021 | return 0; | |
2022 | } | |
2023 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2024 | ||
2025 | /** | |
2026 | * snd_soc_cnew - create new control | |
2027 | * @_template: control template | |
2028 | * @data: control private data | |
ac11a2b3 | 2029 | * @long_name: control long name |
efb7ac3f | 2030 | * @prefix: control name prefix |
db2a4165 FM |
2031 | * |
2032 | * Create a new mixer control from a template control. | |
2033 | * | |
2034 | * Returns 0 for success, else error. | |
2035 | */ | |
2036 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
3056557f | 2037 | void *data, const char *long_name, |
efb7ac3f | 2038 | const char *prefix) |
db2a4165 FM |
2039 | { |
2040 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2041 | struct snd_kcontrol *kcontrol; |
2042 | char *name = NULL; | |
2043 | int name_len; | |
db2a4165 FM |
2044 | |
2045 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2046 | template.index = 0; |
2047 | ||
efb7ac3f MB |
2048 | if (!long_name) |
2049 | long_name = template.name; | |
2050 | ||
2051 | if (prefix) { | |
2052 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 2053 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
2054 | if (!name) |
2055 | return NULL; | |
2056 | ||
2057 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2058 | ||
2059 | template.name = name; | |
2060 | } else { | |
2061 | template.name = long_name; | |
2062 | } | |
2063 | ||
2064 | kcontrol = snd_ctl_new1(&template, data); | |
2065 | ||
2066 | kfree(name); | |
2067 | ||
2068 | return kcontrol; | |
db2a4165 FM |
2069 | } |
2070 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2071 | ||
022658be LG |
2072 | static int snd_soc_add_controls(struct snd_card *card, struct device *dev, |
2073 | const struct snd_kcontrol_new *controls, int num_controls, | |
2074 | const char *prefix, void *data) | |
2075 | { | |
2076 | int err, i; | |
2077 | ||
2078 | for (i = 0; i < num_controls; i++) { | |
2079 | const struct snd_kcontrol_new *control = &controls[i]; | |
2080 | err = snd_ctl_add(card, snd_soc_cnew(control, data, | |
2081 | control->name, prefix)); | |
2082 | if (err < 0) { | |
2083 | dev_err(dev, "Failed to add %s: %d\n", control->name, err); | |
2084 | return err; | |
2085 | } | |
2086 | } | |
2087 | ||
2088 | return 0; | |
2089 | } | |
2090 | ||
3e8e1952 | 2091 | /** |
022658be LG |
2092 | * snd_soc_add_codec_controls - add an array of controls to a codec. |
2093 | * Convenience function to add a list of controls. Many codecs were | |
3e8e1952 IM |
2094 | * duplicating this code. |
2095 | * | |
2096 | * @codec: codec to add controls to | |
2097 | * @controls: array of controls to add | |
2098 | * @num_controls: number of elements in the array | |
2099 | * | |
2100 | * Return 0 for success, else error. | |
2101 | */ | |
022658be | 2102 | int snd_soc_add_codec_controls(struct snd_soc_codec *codec, |
3e8e1952 IM |
2103 | const struct snd_kcontrol_new *controls, int num_controls) |
2104 | { | |
f0fba2ad | 2105 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 | 2106 | |
022658be LG |
2107 | return snd_soc_add_controls(card, codec->dev, controls, num_controls, |
2108 | codec->name_prefix, codec); | |
3e8e1952 | 2109 | } |
022658be | 2110 | EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls); |
3e8e1952 | 2111 | |
a491a5c8 LG |
2112 | /** |
2113 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
022658be | 2114 | * Convenience function to add a list of controls. |
a491a5c8 LG |
2115 | * |
2116 | * @platform: platform to add controls to | |
2117 | * @controls: array of controls to add | |
2118 | * @num_controls: number of elements in the array | |
2119 | * | |
2120 | * Return 0 for success, else error. | |
2121 | */ | |
2122 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2123 | const struct snd_kcontrol_new *controls, int num_controls) | |
2124 | { | |
2125 | struct snd_card *card = platform->card->snd_card; | |
a491a5c8 | 2126 | |
022658be LG |
2127 | return snd_soc_add_controls(card, platform->dev, controls, num_controls, |
2128 | NULL, platform); | |
a491a5c8 LG |
2129 | } |
2130 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2131 | ||
022658be LG |
2132 | /** |
2133 | * snd_soc_add_card_controls - add an array of controls to a SoC card. | |
2134 | * Convenience function to add a list of controls. | |
2135 | * | |
2136 | * @soc_card: SoC card to add controls to | |
2137 | * @controls: array of controls to add | |
2138 | * @num_controls: number of elements in the array | |
2139 | * | |
2140 | * Return 0 for success, else error. | |
2141 | */ | |
2142 | int snd_soc_add_card_controls(struct snd_soc_card *soc_card, | |
2143 | const struct snd_kcontrol_new *controls, int num_controls) | |
2144 | { | |
2145 | struct snd_card *card = soc_card->snd_card; | |
2146 | ||
2147 | return snd_soc_add_controls(card, soc_card->dev, controls, num_controls, | |
2148 | NULL, soc_card); | |
2149 | } | |
2150 | EXPORT_SYMBOL_GPL(snd_soc_add_card_controls); | |
2151 | ||
2152 | /** | |
2153 | * snd_soc_add_dai_controls - add an array of controls to a DAI. | |
2154 | * Convienience function to add a list of controls. | |
2155 | * | |
2156 | * @dai: DAI to add controls to | |
2157 | * @controls: array of controls to add | |
2158 | * @num_controls: number of elements in the array | |
2159 | * | |
2160 | * Return 0 for success, else error. | |
2161 | */ | |
2162 | int snd_soc_add_dai_controls(struct snd_soc_dai *dai, | |
2163 | const struct snd_kcontrol_new *controls, int num_controls) | |
2164 | { | |
2165 | struct snd_card *card = dai->card->snd_card; | |
2166 | ||
2167 | return snd_soc_add_controls(card, dai->dev, controls, num_controls, | |
2168 | NULL, dai); | |
2169 | } | |
2170 | EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls); | |
2171 | ||
db2a4165 FM |
2172 | /** |
2173 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2174 | * @kcontrol: mixer control | |
2175 | * @uinfo: control element information | |
2176 | * | |
2177 | * Callback to provide information about a double enumerated | |
2178 | * mixer control. | |
2179 | * | |
2180 | * Returns 0 for success. | |
2181 | */ | |
2182 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2183 | struct snd_ctl_elem_info *uinfo) | |
2184 | { | |
2185 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2186 | ||
2187 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2188 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2189 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2190 | |
f8ba0b7b JS |
2191 | if (uinfo->value.enumerated.item > e->max - 1) |
2192 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2193 | strcpy(uinfo->value.enumerated.name, |
2194 | e->texts[uinfo->value.enumerated.item]); | |
2195 | return 0; | |
2196 | } | |
2197 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2198 | ||
2199 | /** | |
2200 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2201 | * @kcontrol: mixer control | |
ac11a2b3 | 2202 | * @ucontrol: control element information |
db2a4165 FM |
2203 | * |
2204 | * Callback to get the value of a double enumerated mixer. | |
2205 | * | |
2206 | * Returns 0 for success. | |
2207 | */ | |
2208 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2209 | struct snd_ctl_elem_value *ucontrol) | |
2210 | { | |
2211 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2212 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2213 | unsigned int val, bitmask; |
db2a4165 | 2214 | |
f8ba0b7b | 2215 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2216 | ; |
2217 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2218 | ucontrol->value.enumerated.item[0] |
2219 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2220 | if (e->shift_l != e->shift_r) |
2221 | ucontrol->value.enumerated.item[1] = | |
2222 | (val >> e->shift_r) & (bitmask - 1); | |
2223 | ||
2224 | return 0; | |
2225 | } | |
2226 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2227 | ||
2228 | /** | |
2229 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2230 | * @kcontrol: mixer control | |
ac11a2b3 | 2231 | * @ucontrol: control element information |
db2a4165 FM |
2232 | * |
2233 | * Callback to set the value of a double enumerated mixer. | |
2234 | * | |
2235 | * Returns 0 for success. | |
2236 | */ | |
2237 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2238 | struct snd_ctl_elem_value *ucontrol) | |
2239 | { | |
2240 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2241 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2242 | unsigned int val; |
2243 | unsigned int mask, bitmask; | |
db2a4165 | 2244 | |
f8ba0b7b | 2245 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2246 | ; |
f8ba0b7b | 2247 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2248 | return -EINVAL; |
2249 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2250 | mask = (bitmask - 1) << e->shift_l; | |
2251 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2252 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2253 | return -EINVAL; |
2254 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2255 | mask |= (bitmask - 1) << e->shift_r; | |
2256 | } | |
2257 | ||
6c508c62 | 2258 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2259 | } |
2260 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2261 | ||
2e72f8e3 PU |
2262 | /** |
2263 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2264 | * @kcontrol: mixer control | |
2265 | * @ucontrol: control element information | |
2266 | * | |
2267 | * Callback to get the value of a double semi enumerated mixer. | |
2268 | * | |
2269 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2270 | * used for handling bitfield coded enumeration for example. | |
2271 | * | |
2272 | * Returns 0 for success. | |
2273 | */ | |
2274 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2275 | struct snd_ctl_elem_value *ucontrol) | |
2276 | { | |
2277 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2278 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2279 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2280 | |
2281 | reg_val = snd_soc_read(codec, e->reg); | |
2282 | val = (reg_val >> e->shift_l) & e->mask; | |
2283 | for (mux = 0; mux < e->max; mux++) { | |
2284 | if (val == e->values[mux]) | |
2285 | break; | |
2286 | } | |
2287 | ucontrol->value.enumerated.item[0] = mux; | |
2288 | if (e->shift_l != e->shift_r) { | |
2289 | val = (reg_val >> e->shift_r) & e->mask; | |
2290 | for (mux = 0; mux < e->max; mux++) { | |
2291 | if (val == e->values[mux]) | |
2292 | break; | |
2293 | } | |
2294 | ucontrol->value.enumerated.item[1] = mux; | |
2295 | } | |
2296 | ||
2297 | return 0; | |
2298 | } | |
2299 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2300 | ||
2301 | /** | |
2302 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2303 | * @kcontrol: mixer control | |
2304 | * @ucontrol: control element information | |
2305 | * | |
2306 | * Callback to set the value of a double semi enumerated mixer. | |
2307 | * | |
2308 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2309 | * used for handling bitfield coded enumeration for example. | |
2310 | * | |
2311 | * Returns 0 for success. | |
2312 | */ | |
2313 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2314 | struct snd_ctl_elem_value *ucontrol) | |
2315 | { | |
2316 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2317 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2318 | unsigned int val; |
2319 | unsigned int mask; | |
2e72f8e3 PU |
2320 | |
2321 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2322 | return -EINVAL; | |
2323 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2324 | mask = e->mask << e->shift_l; | |
2325 | if (e->shift_l != e->shift_r) { | |
2326 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2327 | return -EINVAL; | |
2328 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2329 | mask |= e->mask << e->shift_r; | |
2330 | } | |
2331 | ||
6c508c62 | 2332 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2333 | } |
2334 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2335 | ||
db2a4165 FM |
2336 | /** |
2337 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2338 | * @kcontrol: mixer control | |
2339 | * @uinfo: control element information | |
2340 | * | |
2341 | * Callback to provide information about an external enumerated | |
2342 | * single mixer. | |
2343 | * | |
2344 | * Returns 0 for success. | |
2345 | */ | |
2346 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2347 | struct snd_ctl_elem_info *uinfo) | |
2348 | { | |
2349 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2350 | ||
2351 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2352 | uinfo->count = 1; | |
f8ba0b7b | 2353 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2354 | |
f8ba0b7b JS |
2355 | if (uinfo->value.enumerated.item > e->max - 1) |
2356 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2357 | strcpy(uinfo->value.enumerated.name, |
2358 | e->texts[uinfo->value.enumerated.item]); | |
2359 | return 0; | |
2360 | } | |
2361 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2362 | ||
2363 | /** | |
2364 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2365 | * @kcontrol: mixer control | |
2366 | * @uinfo: control element information | |
2367 | * | |
2368 | * Callback to provide information about a single external mixer control. | |
2369 | * | |
2370 | * Returns 0 for success. | |
2371 | */ | |
2372 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2373 | struct snd_ctl_elem_info *uinfo) | |
2374 | { | |
a7a4ac86 PZ |
2375 | int max = kcontrol->private_value; |
2376 | ||
fd5dfad9 | 2377 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2378 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2379 | else | |
2380 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2381 | |
db2a4165 FM |
2382 | uinfo->count = 1; |
2383 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2384 | uinfo->value.integer.max = max; |
db2a4165 FM |
2385 | return 0; |
2386 | } | |
2387 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2388 | ||
db2a4165 FM |
2389 | /** |
2390 | * snd_soc_info_volsw - single mixer info callback | |
2391 | * @kcontrol: mixer control | |
2392 | * @uinfo: control element information | |
2393 | * | |
e8f5a103 PU |
2394 | * Callback to provide information about a single mixer control, or a double |
2395 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2396 | * |
2397 | * Returns 0 for success. | |
2398 | */ | |
2399 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2400 | struct snd_ctl_elem_info *uinfo) | |
2401 | { | |
4eaa9819 JS |
2402 | struct soc_mixer_control *mc = |
2403 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2404 | int platform_max; |
db2a4165 | 2405 | |
d11bb4a9 PU |
2406 | if (!mc->platform_max) |
2407 | mc->platform_max = mc->max; | |
2408 | platform_max = mc->platform_max; | |
2409 | ||
2410 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2411 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2412 | else | |
2413 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2414 | ||
e8f5a103 | 2415 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2416 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2417 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2418 | return 0; |
2419 | } | |
2420 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2421 | ||
2422 | /** | |
2423 | * snd_soc_get_volsw - single mixer get callback | |
2424 | * @kcontrol: mixer control | |
ac11a2b3 | 2425 | * @ucontrol: control element information |
db2a4165 | 2426 | * |
f7915d99 PU |
2427 | * Callback to get the value of a single mixer control, or a double mixer |
2428 | * control that spans 2 registers. | |
db2a4165 FM |
2429 | * |
2430 | * Returns 0 for success. | |
2431 | */ | |
2432 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2433 | struct snd_ctl_elem_value *ucontrol) | |
2434 | { | |
4eaa9819 JS |
2435 | struct soc_mixer_control *mc = |
2436 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2437 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2438 | unsigned int reg = mc->reg; |
f7915d99 | 2439 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2440 | unsigned int shift = mc->shift; |
2441 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2442 | int max = mc->max; |
815ecf8d JS |
2443 | unsigned int mask = (1 << fls(max)) - 1; |
2444 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2445 | |
2446 | ucontrol->value.integer.value[0] = | |
2447 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2448 | if (invert) |
db2a4165 | 2449 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2450 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2451 | |
2452 | if (snd_soc_volsw_is_stereo(mc)) { | |
2453 | if (reg == reg2) | |
2454 | ucontrol->value.integer.value[1] = | |
2455 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2456 | else | |
2457 | ucontrol->value.integer.value[1] = | |
2458 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2459 | if (invert) | |
db2a4165 | 2460 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2461 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2462 | } |
2463 | ||
2464 | return 0; | |
2465 | } | |
2466 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2467 | ||
2468 | /** | |
2469 | * snd_soc_put_volsw - single mixer put callback | |
2470 | * @kcontrol: mixer control | |
ac11a2b3 | 2471 | * @ucontrol: control element information |
db2a4165 | 2472 | * |
974815ba PU |
2473 | * Callback to set the value of a single mixer control, or a double mixer |
2474 | * control that spans 2 registers. | |
db2a4165 FM |
2475 | * |
2476 | * Returns 0 for success. | |
2477 | */ | |
2478 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2479 | struct snd_ctl_elem_value *ucontrol) | |
2480 | { | |
4eaa9819 JS |
2481 | struct soc_mixer_control *mc = |
2482 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2483 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2484 | unsigned int reg = mc->reg; |
974815ba | 2485 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2486 | unsigned int shift = mc->shift; |
2487 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2488 | int max = mc->max; |
815ecf8d JS |
2489 | unsigned int mask = (1 << fls(max)) - 1; |
2490 | unsigned int invert = mc->invert; | |
974815ba PU |
2491 | int err; |
2492 | bool type_2r = 0; | |
2493 | unsigned int val2 = 0; | |
2494 | unsigned int val, val_mask; | |
db2a4165 FM |
2495 | |
2496 | val = (ucontrol->value.integer.value[0] & mask); | |
2497 | if (invert) | |
a7a4ac86 | 2498 | val = max - val; |
db2a4165 FM |
2499 | val_mask = mask << shift; |
2500 | val = val << shift; | |
974815ba | 2501 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2502 | val2 = (ucontrol->value.integer.value[1] & mask); |
2503 | if (invert) | |
a7a4ac86 | 2504 | val2 = max - val2; |
974815ba PU |
2505 | if (reg == reg2) { |
2506 | val_mask |= mask << rshift; | |
2507 | val |= val2 << rshift; | |
2508 | } else { | |
2509 | val2 = val2 << shift; | |
2510 | type_2r = 1; | |
2511 | } | |
db2a4165 | 2512 | } |
6c508c62 | 2513 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2514 | if (err < 0) |
db2a4165 FM |
2515 | return err; |
2516 | ||
974815ba PU |
2517 | if (type_2r) |
2518 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2519 | ||
db2a4165 FM |
2520 | return err; |
2521 | } | |
974815ba | 2522 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2523 | |
1d99f243 BA |
2524 | /** |
2525 | * snd_soc_get_volsw_sx - single mixer get callback | |
2526 | * @kcontrol: mixer control | |
2527 | * @ucontrol: control element information | |
2528 | * | |
2529 | * Callback to get the value of a single mixer control, or a double mixer | |
2530 | * control that spans 2 registers. | |
2531 | * | |
2532 | * Returns 0 for success. | |
2533 | */ | |
2534 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, | |
2535 | struct snd_ctl_elem_value *ucontrol) | |
2536 | { | |
2537 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2538 | struct soc_mixer_control *mc = | |
2539 | (struct soc_mixer_control *)kcontrol->private_value; | |
2540 | ||
2541 | unsigned int reg = mc->reg; | |
2542 | unsigned int reg2 = mc->rreg; | |
2543 | unsigned int shift = mc->shift; | |
2544 | unsigned int rshift = mc->rshift; | |
2545 | int max = mc->max; | |
2546 | int min = mc->min; | |
2547 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
2548 | ||
2549 | ucontrol->value.integer.value[0] = | |
2550 | ((snd_soc_read(codec, reg) >> shift) - min) & mask; | |
2551 | ||
2552 | if (snd_soc_volsw_is_stereo(mc)) | |
2553 | ucontrol->value.integer.value[1] = | |
2554 | ((snd_soc_read(codec, reg2) >> rshift) - min) & mask; | |
2555 | ||
2556 | return 0; | |
2557 | } | |
2558 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); | |
2559 | ||
2560 | /** | |
2561 | * snd_soc_put_volsw_sx - double mixer set callback | |
2562 | * @kcontrol: mixer control | |
2563 | * @uinfo: control element information | |
2564 | * | |
2565 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2566 | * | |
2567 | * Returns 0 for success. | |
2568 | */ | |
2569 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, | |
2570 | struct snd_ctl_elem_value *ucontrol) | |
2571 | { | |
2572 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2573 | struct soc_mixer_control *mc = | |
2574 | (struct soc_mixer_control *)kcontrol->private_value; | |
2575 | ||
2576 | unsigned int reg = mc->reg; | |
2577 | unsigned int reg2 = mc->rreg; | |
2578 | unsigned int shift = mc->shift; | |
2579 | unsigned int rshift = mc->rshift; | |
2580 | int max = mc->max; | |
2581 | int min = mc->min; | |
2582 | int mask = (1 << (fls(min + max) - 1)) - 1; | |
27f1d759 | 2583 | int err = 0; |
1d99f243 BA |
2584 | unsigned short val, val_mask, val2 = 0; |
2585 | ||
2586 | val_mask = mask << shift; | |
2587 | val = (ucontrol->value.integer.value[0] + min) & mask; | |
2588 | val = val << shift; | |
2589 | ||
2590 | if (snd_soc_update_bits_locked(codec, reg, val_mask, val)) | |
2591 | return err; | |
2592 | ||
2593 | if (snd_soc_volsw_is_stereo(mc)) { | |
2594 | val_mask = mask << rshift; | |
2595 | val2 = (ucontrol->value.integer.value[1] + min) & mask; | |
2596 | val2 = val2 << rshift; | |
2597 | ||
2598 | if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2)) | |
2599 | return err; | |
2600 | } | |
2601 | return 0; | |
2602 | } | |
2603 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); | |
2604 | ||
e13ac2e9 MB |
2605 | /** |
2606 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2607 | * @kcontrol: mixer control | |
2608 | * @uinfo: control element information | |
2609 | * | |
2610 | * Callback to provide information about a signed mixer control. | |
2611 | * | |
2612 | * Returns 0 for success. | |
2613 | */ | |
2614 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2615 | struct snd_ctl_elem_info *uinfo) | |
2616 | { | |
4eaa9819 JS |
2617 | struct soc_mixer_control *mc = |
2618 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2619 | int platform_max; |
4eaa9819 | 2620 | int min = mc->min; |
e13ac2e9 | 2621 | |
d11bb4a9 PU |
2622 | if (!mc->platform_max) |
2623 | mc->platform_max = mc->max; | |
2624 | platform_max = mc->platform_max; | |
2625 | ||
e13ac2e9 MB |
2626 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2627 | uinfo->count = 2; | |
2628 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2629 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2630 | return 0; |
2631 | } | |
2632 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2633 | ||
2634 | /** | |
2635 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2636 | * @kcontrol: mixer control | |
ac11a2b3 | 2637 | * @ucontrol: control element information |
e13ac2e9 MB |
2638 | * |
2639 | * Callback to get the value of a signed mixer control. | |
2640 | * | |
2641 | * Returns 0 for success. | |
2642 | */ | |
2643 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2644 | struct snd_ctl_elem_value *ucontrol) | |
2645 | { | |
4eaa9819 JS |
2646 | struct soc_mixer_control *mc = |
2647 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2648 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2649 | unsigned int reg = mc->reg; |
4eaa9819 | 2650 | int min = mc->min; |
e13ac2e9 MB |
2651 | int val = snd_soc_read(codec, reg); |
2652 | ||
2653 | ucontrol->value.integer.value[0] = | |
2654 | ((signed char)(val & 0xff))-min; | |
2655 | ucontrol->value.integer.value[1] = | |
2656 | ((signed char)((val >> 8) & 0xff))-min; | |
2657 | return 0; | |
2658 | } | |
2659 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2660 | ||
2661 | /** | |
2662 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2663 | * @kcontrol: mixer control | |
ac11a2b3 | 2664 | * @ucontrol: control element information |
e13ac2e9 MB |
2665 | * |
2666 | * Callback to set the value of a signed mixer control. | |
2667 | * | |
2668 | * Returns 0 for success. | |
2669 | */ | |
2670 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2671 | struct snd_ctl_elem_value *ucontrol) | |
2672 | { | |
4eaa9819 JS |
2673 | struct soc_mixer_control *mc = |
2674 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2675 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2676 | unsigned int reg = mc->reg; |
4eaa9819 | 2677 | int min = mc->min; |
46f5822f | 2678 | unsigned int val; |
e13ac2e9 MB |
2679 | |
2680 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2681 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2682 | ||
6c508c62 | 2683 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2684 | } |
2685 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2686 | ||
637d3847 PU |
2687 | /** |
2688 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2689 | * | |
2690 | * @codec: where to look for the control | |
2691 | * @name: Name of the control | |
2692 | * @max: new maximum limit | |
2693 | * | |
2694 | * Return 0 for success, else error. | |
2695 | */ | |
2696 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2697 | const char *name, int max) | |
2698 | { | |
f0fba2ad | 2699 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2700 | struct snd_kcontrol *kctl; |
2701 | struct soc_mixer_control *mc; | |
2702 | int found = 0; | |
2703 | int ret = -EINVAL; | |
2704 | ||
2705 | /* Sanity check for name and max */ | |
2706 | if (unlikely(!name || max <= 0)) | |
2707 | return -EINVAL; | |
2708 | ||
2709 | list_for_each_entry(kctl, &card->controls, list) { | |
2710 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2711 | found = 1; | |
2712 | break; | |
2713 | } | |
2714 | } | |
2715 | if (found) { | |
2716 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2717 | if (max <= mc->max) { | |
d11bb4a9 | 2718 | mc->platform_max = max; |
637d3847 PU |
2719 | ret = 0; |
2720 | } | |
2721 | } | |
2722 | return ret; | |
2723 | } | |
2724 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2725 | ||
71d08516 MB |
2726 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, |
2727 | struct snd_ctl_elem_info *uinfo) | |
2728 | { | |
2729 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2730 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2731 | ||
2732 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
2733 | uinfo->count = params->num_regs * codec->val_bytes; | |
2734 | ||
2735 | return 0; | |
2736 | } | |
2737 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
2738 | ||
2739 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
2740 | struct snd_ctl_elem_value *ucontrol) | |
2741 | { | |
2742 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2743 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2744 | int ret; | |
2745 | ||
2746 | if (codec->using_regmap) | |
2747 | ret = regmap_raw_read(codec->control_data, params->base, | |
2748 | ucontrol->value.bytes.data, | |
2749 | params->num_regs * codec->val_bytes); | |
2750 | else | |
2751 | ret = -EINVAL; | |
2752 | ||
f831b055 MB |
2753 | /* Hide any masked bytes to ensure consistent data reporting */ |
2754 | if (ret == 0 && params->mask) { | |
2755 | switch (codec->val_bytes) { | |
2756 | case 1: | |
2757 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
2758 | break; | |
2759 | case 2: | |
2760 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
2761 | &= ~params->mask; | |
2762 | break; | |
2763 | case 4: | |
2764 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
2765 | &= ~params->mask; | |
2766 | break; | |
2767 | default: | |
2768 | return -EINVAL; | |
2769 | } | |
2770 | } | |
2771 | ||
71d08516 MB |
2772 | return ret; |
2773 | } | |
2774 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
2775 | ||
2776 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
2777 | struct snd_ctl_elem_value *ucontrol) | |
2778 | { | |
2779 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
2780 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
f831b055 MB |
2781 | int ret, len; |
2782 | unsigned int val; | |
2783 | void *data; | |
71d08516 | 2784 | |
f831b055 MB |
2785 | if (!codec->using_regmap) |
2786 | return -EINVAL; | |
2787 | ||
2788 | data = ucontrol->value.bytes.data; | |
2789 | len = params->num_regs * codec->val_bytes; | |
2790 | ||
2791 | /* | |
2792 | * If we've got a mask then we need to preserve the register | |
2793 | * bits. We shouldn't modify the incoming data so take a | |
2794 | * copy. | |
2795 | */ | |
2796 | if (params->mask) { | |
2797 | ret = regmap_read(codec->control_data, params->base, &val); | |
2798 | if (ret != 0) | |
2799 | return ret; | |
2800 | ||
2801 | val &= params->mask; | |
2802 | ||
2803 | data = kmemdup(data, len, GFP_KERNEL); | |
2804 | if (!data) | |
2805 | return -ENOMEM; | |
2806 | ||
2807 | switch (codec->val_bytes) { | |
2808 | case 1: | |
2809 | ((u8 *)data)[0] &= ~params->mask; | |
2810 | ((u8 *)data)[0] |= val; | |
2811 | break; | |
2812 | case 2: | |
2813 | ((u16 *)data)[0] &= cpu_to_be16(~params->mask); | |
2814 | ((u16 *)data)[0] |= cpu_to_be16(val); | |
2815 | break; | |
2816 | case 4: | |
2817 | ((u32 *)data)[0] &= cpu_to_be32(~params->mask); | |
2818 | ((u32 *)data)[0] |= cpu_to_be32(val); | |
2819 | break; | |
2820 | default: | |
2821 | return -EINVAL; | |
2822 | } | |
2823 | } | |
2824 | ||
2825 | ret = regmap_raw_write(codec->control_data, params->base, | |
2826 | data, len); | |
2827 | ||
2828 | if (params->mask) | |
2829 | kfree(data); | |
71d08516 MB |
2830 | |
2831 | return ret; | |
2832 | } | |
2833 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
2834 | ||
8c6529db LG |
2835 | /** |
2836 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2837 | * @dai: DAI | |
2838 | * @clk_id: DAI specific clock ID | |
2839 | * @freq: new clock frequency in Hz | |
2840 | * @dir: new clock direction - input/output. | |
2841 | * | |
2842 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2843 | */ | |
2844 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2845 | unsigned int freq, int dir) | |
2846 | { | |
f0fba2ad LG |
2847 | if (dai->driver && dai->driver->ops->set_sysclk) |
2848 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2849 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2850 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2851 | freq, dir); |
8c6529db LG |
2852 | else |
2853 | return -EINVAL; | |
2854 | } | |
2855 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2856 | ||
ec4ee52a MB |
2857 | /** |
2858 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2859 | * @codec: CODEC | |
2860 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2861 | * @source: Source for the clock |
ec4ee52a MB |
2862 | * @freq: new clock frequency in Hz |
2863 | * @dir: new clock direction - input/output. | |
2864 | * | |
2865 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2866 | */ | |
2867 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2868 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2869 | { |
2870 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2871 | return codec->driver->set_sysclk(codec, clk_id, source, |
2872 | freq, dir); | |
ec4ee52a MB |
2873 | else |
2874 | return -EINVAL; | |
2875 | } | |
2876 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2877 | ||
8c6529db LG |
2878 | /** |
2879 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2880 | * @dai: DAI | |
ac11a2b3 | 2881 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2882 | * @div: new clock divisor. |
2883 | * | |
2884 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2885 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2886 | * and frame clocks as low as possible to save system power. | |
2887 | */ | |
2888 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2889 | int div_id, int div) | |
2890 | { | |
f0fba2ad LG |
2891 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2892 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2893 | else |
2894 | return -EINVAL; | |
2895 | } | |
2896 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2897 | ||
2898 | /** | |
2899 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2900 | * @dai: DAI | |
2901 | * @pll_id: DAI specific PLL ID | |
85488037 | 2902 | * @source: DAI specific source for the PLL |
8c6529db LG |
2903 | * @freq_in: PLL input clock frequency in Hz |
2904 | * @freq_out: requested PLL output clock frequency in Hz | |
2905 | * | |
2906 | * Configures and enables PLL to generate output clock based on input clock. | |
2907 | */ | |
85488037 MB |
2908 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2909 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2910 | { |
f0fba2ad LG |
2911 | if (dai->driver && dai->driver->ops->set_pll) |
2912 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2913 | freq_in, freq_out); |
ec4ee52a MB |
2914 | else if (dai->codec && dai->codec->driver->set_pll) |
2915 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2916 | freq_in, freq_out); | |
8c6529db LG |
2917 | else |
2918 | return -EINVAL; | |
2919 | } | |
2920 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2921 | ||
ec4ee52a MB |
2922 | /* |
2923 | * snd_soc_codec_set_pll - configure codec PLL. | |
2924 | * @codec: CODEC | |
2925 | * @pll_id: DAI specific PLL ID | |
2926 | * @source: DAI specific source for the PLL | |
2927 | * @freq_in: PLL input clock frequency in Hz | |
2928 | * @freq_out: requested PLL output clock frequency in Hz | |
2929 | * | |
2930 | * Configures and enables PLL to generate output clock based on input clock. | |
2931 | */ | |
2932 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2933 | unsigned int freq_in, unsigned int freq_out) | |
2934 | { | |
2935 | if (codec->driver->set_pll) | |
2936 | return codec->driver->set_pll(codec, pll_id, source, | |
2937 | freq_in, freq_out); | |
2938 | else | |
2939 | return -EINVAL; | |
2940 | } | |
2941 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2942 | ||
8c6529db LG |
2943 | /** |
2944 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2945 | * @dai: DAI | |
8c6529db LG |
2946 | * @fmt: SND_SOC_DAIFMT_ format value. |
2947 | * | |
2948 | * Configures the DAI hardware format and clocking. | |
2949 | */ | |
2950 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2951 | { | |
5e4ba569 | 2952 | if (dai->driver == NULL) |
8c6529db | 2953 | return -EINVAL; |
5e4ba569 SG |
2954 | if (dai->driver->ops->set_fmt == NULL) |
2955 | return -ENOTSUPP; | |
2956 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2957 | } |
2958 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2959 | ||
2960 | /** | |
2961 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2962 | * @dai: DAI | |
a5479e38 DR |
2963 | * @tx_mask: bitmask representing active TX slots. |
2964 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2965 | * @slots: Number of slots in use. |
a5479e38 | 2966 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2967 | * |
2968 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2969 | * specific. | |
2970 | */ | |
2971 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2972 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2973 | { |
f0fba2ad LG |
2974 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2975 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2976 | slots, slot_width); |
8c6529db LG |
2977 | else |
2978 | return -EINVAL; | |
2979 | } | |
2980 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2981 | ||
472df3cb BS |
2982 | /** |
2983 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2984 | * @dai: DAI | |
2985 | * @tx_num: how many TX channels | |
2986 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2987 | * 0~num-1 uses | |
2988 | * @rx_num: how many RX channels | |
2989 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2990 | * 0~num-1 uses | |
2991 | * | |
2992 | * configure the relationship between channel number and TDM slot number. | |
2993 | */ | |
2994 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2995 | unsigned int tx_num, unsigned int *tx_slot, | |
2996 | unsigned int rx_num, unsigned int *rx_slot) | |
2997 | { | |
f0fba2ad LG |
2998 | if (dai->driver && dai->driver->ops->set_channel_map) |
2999 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3000 | rx_num, rx_slot); |
3001 | else | |
3002 | return -EINVAL; | |
3003 | } | |
3004 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3005 | ||
8c6529db LG |
3006 | /** |
3007 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3008 | * @dai: DAI | |
3009 | * @tristate: tristate enable | |
3010 | * | |
3011 | * Tristates the DAI so that others can use it. | |
3012 | */ | |
3013 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3014 | { | |
f0fba2ad LG |
3015 | if (dai->driver && dai->driver->ops->set_tristate) |
3016 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3017 | else |
3018 | return -EINVAL; | |
3019 | } | |
3020 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3021 | ||
3022 | /** | |
3023 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3024 | * @dai: DAI | |
3025 | * @mute: mute enable | |
3026 | * | |
3027 | * Mutes the DAI DAC. | |
3028 | */ | |
3029 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3030 | { | |
f0fba2ad LG |
3031 | if (dai->driver && dai->driver->ops->digital_mute) |
3032 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3033 | else |
3034 | return -EINVAL; | |
3035 | } | |
3036 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3037 | ||
c5af3a2e MB |
3038 | /** |
3039 | * snd_soc_register_card - Register a card with the ASoC core | |
3040 | * | |
ac11a2b3 | 3041 | * @card: Card to register |
c5af3a2e | 3042 | * |
c5af3a2e | 3043 | */ |
70a7ca34 | 3044 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3045 | { |
b19e6e7b | 3046 | int i, ret; |
f0fba2ad | 3047 | |
c5af3a2e MB |
3048 | if (!card->name || !card->dev) |
3049 | return -EINVAL; | |
3050 | ||
5a504963 SW |
3051 | for (i = 0; i < card->num_links; i++) { |
3052 | struct snd_soc_dai_link *link = &card->dai_link[i]; | |
3053 | ||
3054 | /* | |
3055 | * Codec must be specified by 1 of name or OF node, | |
3056 | * not both or neither. | |
3057 | */ | |
3058 | if (!!link->codec_name == !!link->codec_of_node) { | |
3059 | dev_err(card->dev, | |
3b09bb82 LG |
3060 | "Neither/both codec name/of_node are set for %s\n", |
3061 | link->name); | |
5a504963 SW |
3062 | return -EINVAL; |
3063 | } | |
3064 | ||
3065 | /* | |
3066 | * Platform may be specified by either name or OF node, but | |
3067 | * can be left unspecified, and a dummy platform will be used. | |
3068 | */ | |
3069 | if (link->platform_name && link->platform_of_node) { | |
3070 | dev_err(card->dev, | |
3b09bb82 | 3071 | "Both platform name/of_node are set for %s\n", link->name); |
5a504963 SW |
3072 | return -EINVAL; |
3073 | } | |
3074 | ||
3075 | /* | |
3076 | * CPU DAI must be specified by 1 of name or OF node, | |
3077 | * not both or neither. | |
3078 | */ | |
3079 | if (!!link->cpu_dai_name == !!link->cpu_dai_of_node) { | |
3080 | dev_err(card->dev, | |
3b09bb82 LG |
3081 | "Neither/both cpu_dai name/of_node are set for %s\n", |
3082 | link->name); | |
5a504963 SW |
3083 | return -EINVAL; |
3084 | } | |
3085 | } | |
3086 | ||
ed77cc12 MB |
3087 | dev_set_drvdata(card->dev, card); |
3088 | ||
111c6419 SW |
3089 | snd_soc_initialize_card_lists(card); |
3090 | ||
150dd2f8 VK |
3091 | soc_init_card_debugfs(card); |
3092 | ||
181a6892 MB |
3093 | card->rtd = devm_kzalloc(card->dev, |
3094 | sizeof(struct snd_soc_pcm_runtime) * | |
3095 | (card->num_links + card->num_aux_devs), | |
3096 | GFP_KERNEL); | |
f0fba2ad LG |
3097 | if (card->rtd == NULL) |
3098 | return -ENOMEM; | |
2eea392d | 3099 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3100 | |
3101 | for (i = 0; i < card->num_links; i++) | |
3102 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3103 | ||
c5af3a2e | 3104 | INIT_LIST_HEAD(&card->list); |
db432b41 | 3105 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 3106 | card->instantiated = 0; |
f0fba2ad | 3107 | mutex_init(&card->mutex); |
a73fb2df | 3108 | mutex_init(&card->dapm_mutex); |
c5af3a2e | 3109 | |
b19e6e7b MB |
3110 | ret = snd_soc_instantiate_card(card); |
3111 | if (ret != 0) | |
3112 | soc_cleanup_card_debugfs(card); | |
c5af3a2e | 3113 | |
b19e6e7b | 3114 | return ret; |
c5af3a2e | 3115 | } |
70a7ca34 | 3116 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3117 | |
3118 | /** | |
3119 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3120 | * | |
ac11a2b3 | 3121 | * @card: Card to unregister |
c5af3a2e | 3122 | * |
c5af3a2e | 3123 | */ |
70a7ca34 | 3124 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3125 | { |
b0e26485 VK |
3126 | if (card->instantiated) |
3127 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3128 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3129 | ||
3130 | return 0; | |
3131 | } | |
70a7ca34 | 3132 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3133 | |
f0fba2ad LG |
3134 | /* |
3135 | * Simplify DAI link configuration by removing ".-1" from device names | |
3136 | * and sanitizing names. | |
3137 | */ | |
0b9a214a | 3138 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3139 | { |
3140 | char *found, name[NAME_SIZE]; | |
3141 | int id1, id2; | |
3142 | ||
3143 | if (dev_name(dev) == NULL) | |
3144 | return NULL; | |
3145 | ||
58818a77 | 3146 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3147 | |
3148 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3149 | found = strstr(name, dev->driver->name); | |
3150 | if (found) { | |
3151 | /* get ID */ | |
3152 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3153 | ||
3154 | /* discard ID from name if ID == -1 */ | |
3155 | if (*id == -1) | |
3156 | found[strlen(dev->driver->name)] = '\0'; | |
3157 | } | |
3158 | ||
3159 | } else { | |
3160 | /* I2C component devices are named "bus-addr" */ | |
3161 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3162 | char tmp[NAME_SIZE]; | |
3163 | ||
3164 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3165 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3166 | |
3167 | /* sanitize component name for DAI link creation */ | |
3168 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3169 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3170 | } else |
3171 | *id = 0; | |
3172 | } | |
3173 | ||
3174 | return kstrdup(name, GFP_KERNEL); | |
3175 | } | |
3176 | ||
3177 | /* | |
3178 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3179 | * any ".-1" and using the DAI name (instead of device name). | |
3180 | */ | |
3181 | static inline char *fmt_multiple_name(struct device *dev, | |
3182 | struct snd_soc_dai_driver *dai_drv) | |
3183 | { | |
3184 | if (dai_drv->name == NULL) { | |
0837fc62 | 3185 | pr_err("asoc: error - multiple DAI %s registered with no name\n", |
f0fba2ad LG |
3186 | dev_name(dev)); |
3187 | return NULL; | |
3188 | } | |
3189 | ||
3190 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3191 | } | |
3192 | ||
9115171a MB |
3193 | /** |
3194 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3195 | * | |
ac11a2b3 | 3196 | * @dai: DAI to register |
9115171a | 3197 | */ |
f0fba2ad LG |
3198 | int snd_soc_register_dai(struct device *dev, |
3199 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3200 | { |
f0fba2ad LG |
3201 | struct snd_soc_dai *dai; |
3202 | ||
3203 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3204 | |
f0fba2ad LG |
3205 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3206 | if (dai == NULL) | |
a7393623 | 3207 | return -ENOMEM; |
9115171a | 3208 | |
f0fba2ad LG |
3209 | /* create DAI component name */ |
3210 | dai->name = fmt_single_name(dev, &dai->id); | |
3211 | if (dai->name == NULL) { | |
3212 | kfree(dai); | |
3213 | return -ENOMEM; | |
3214 | } | |
6335d055 | 3215 | |
f0fba2ad LG |
3216 | dai->dev = dev; |
3217 | dai->driver = dai_drv; | |
be09ad90 | 3218 | dai->dapm.dev = dev; |
f0fba2ad LG |
3219 | if (!dai->driver->ops) |
3220 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3221 | |
3222 | mutex_lock(&client_mutex); | |
3223 | list_add(&dai->list, &dai_list); | |
3224 | mutex_unlock(&client_mutex); | |
3225 | ||
3226 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3227 | ||
3228 | return 0; | |
3229 | } | |
3230 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3231 | ||
3232 | /** | |
3233 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3234 | * | |
ac11a2b3 | 3235 | * @dai: DAI to unregister |
9115171a | 3236 | */ |
f0fba2ad | 3237 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3238 | { |
f0fba2ad LG |
3239 | struct snd_soc_dai *dai; |
3240 | ||
3241 | list_for_each_entry(dai, &dai_list, list) { | |
3242 | if (dev == dai->dev) | |
3243 | goto found; | |
3244 | } | |
3245 | return; | |
3246 | ||
3247 | found: | |
9115171a MB |
3248 | mutex_lock(&client_mutex); |
3249 | list_del(&dai->list); | |
3250 | mutex_unlock(&client_mutex); | |
3251 | ||
3252 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3253 | kfree(dai->name); |
3254 | kfree(dai); | |
9115171a MB |
3255 | } |
3256 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3257 | ||
3258 | /** | |
3259 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3260 | * | |
ac11a2b3 MB |
3261 | * @dai: Array of DAIs to register |
3262 | * @count: Number of DAIs | |
9115171a | 3263 | */ |
f0fba2ad LG |
3264 | int snd_soc_register_dais(struct device *dev, |
3265 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3266 | { |
f0fba2ad LG |
3267 | struct snd_soc_dai *dai; |
3268 | int i, ret = 0; | |
3269 | ||
720ffa4c | 3270 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3271 | |
3272 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3273 | |
3274 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3275 | if (dai == NULL) { |
3276 | ret = -ENOMEM; | |
3277 | goto err; | |
3278 | } | |
f0fba2ad LG |
3279 | |
3280 | /* create DAI component name */ | |
3281 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3282 | if (dai->name == NULL) { | |
3283 | kfree(dai); | |
3284 | ret = -EINVAL; | |
9115171a | 3285 | goto err; |
f0fba2ad LG |
3286 | } |
3287 | ||
3288 | dai->dev = dev; | |
f0fba2ad | 3289 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3290 | if (dai->driver->id) |
3291 | dai->id = dai->driver->id; | |
3292 | else | |
3293 | dai->id = i; | |
be09ad90 | 3294 | dai->dapm.dev = dev; |
f0fba2ad LG |
3295 | if (!dai->driver->ops) |
3296 | dai->driver->ops = &null_dai_ops; | |
3297 | ||
3298 | mutex_lock(&client_mutex); | |
3299 | list_add(&dai->list, &dai_list); | |
3300 | mutex_unlock(&client_mutex); | |
3301 | ||
3302 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3303 | } |
3304 | ||
3305 | return 0; | |
3306 | ||
3307 | err: | |
3308 | for (i--; i >= 0; i--) | |
f0fba2ad | 3309 | snd_soc_unregister_dai(dev); |
9115171a MB |
3310 | |
3311 | return ret; | |
3312 | } | |
3313 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3314 | ||
3315 | /** | |
3316 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3317 | * | |
ac11a2b3 MB |
3318 | * @dai: Array of DAIs to unregister |
3319 | * @count: Number of DAIs | |
9115171a | 3320 | */ |
f0fba2ad | 3321 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3322 | { |
3323 | int i; | |
3324 | ||
3325 | for (i = 0; i < count; i++) | |
f0fba2ad | 3326 | snd_soc_unregister_dai(dev); |
9115171a MB |
3327 | } |
3328 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3329 | ||
12a48a8c MB |
3330 | /** |
3331 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3332 | * | |
ac11a2b3 | 3333 | * @platform: platform to register |
12a48a8c | 3334 | */ |
f0fba2ad LG |
3335 | int snd_soc_register_platform(struct device *dev, |
3336 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3337 | { |
f0fba2ad LG |
3338 | struct snd_soc_platform *platform; |
3339 | ||
3340 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3341 | ||
3342 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3343 | if (platform == NULL) | |
a7393623 | 3344 | return -ENOMEM; |
f0fba2ad LG |
3345 | |
3346 | /* create platform component name */ | |
3347 | platform->name = fmt_single_name(dev, &platform->id); | |
3348 | if (platform->name == NULL) { | |
3349 | kfree(platform); | |
3350 | return -ENOMEM; | |
3351 | } | |
12a48a8c | 3352 | |
f0fba2ad LG |
3353 | platform->dev = dev; |
3354 | platform->driver = platform_drv; | |
b7950641 LG |
3355 | platform->dapm.dev = dev; |
3356 | platform->dapm.platform = platform; | |
64a648c2 | 3357 | platform->dapm.stream_event = platform_drv->stream_event; |
cc22d37e | 3358 | mutex_init(&platform->mutex); |
12a48a8c MB |
3359 | |
3360 | mutex_lock(&client_mutex); | |
3361 | list_add(&platform->list, &platform_list); | |
3362 | mutex_unlock(&client_mutex); | |
3363 | ||
3364 | pr_debug("Registered platform '%s'\n", platform->name); | |
3365 | ||
3366 | return 0; | |
3367 | } | |
3368 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3369 | ||
3370 | /** | |
3371 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3372 | * | |
ac11a2b3 | 3373 | * @platform: platform to unregister |
12a48a8c | 3374 | */ |
f0fba2ad | 3375 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3376 | { |
f0fba2ad LG |
3377 | struct snd_soc_platform *platform; |
3378 | ||
3379 | list_for_each_entry(platform, &platform_list, list) { | |
3380 | if (dev == platform->dev) | |
3381 | goto found; | |
3382 | } | |
3383 | return; | |
3384 | ||
3385 | found: | |
12a48a8c MB |
3386 | mutex_lock(&client_mutex); |
3387 | list_del(&platform->list); | |
3388 | mutex_unlock(&client_mutex); | |
3389 | ||
3390 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3391 | kfree(platform->name); |
3392 | kfree(platform); | |
12a48a8c MB |
3393 | } |
3394 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3395 | ||
151ab22c MB |
3396 | static u64 codec_format_map[] = { |
3397 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3398 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3399 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3400 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3401 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3402 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3403 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3404 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3405 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3406 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3407 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3408 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3409 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3410 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3411 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3412 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3413 | }; | |
3414 | ||
3415 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3416 | * the endianness of the data but we're using the CPU format | |
3417 | * definitions which do need to include endianness so we ensure that | |
3418 | * codec DAIs always have both big and little endian variants set. | |
3419 | */ | |
3420 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3421 | { | |
3422 | int i; | |
3423 | ||
3424 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3425 | if (stream->formats & codec_format_map[i]) | |
3426 | stream->formats |= codec_format_map[i]; | |
3427 | } | |
3428 | ||
0d0cf00a MB |
3429 | /** |
3430 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3431 | * | |
ac11a2b3 | 3432 | * @codec: codec to register |
0d0cf00a | 3433 | */ |
f0fba2ad | 3434 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3435 | const struct snd_soc_codec_driver *codec_drv, |
3436 | struct snd_soc_dai_driver *dai_drv, | |
3437 | int num_dai) | |
0d0cf00a | 3438 | { |
3335ddca | 3439 | size_t reg_size; |
f0fba2ad LG |
3440 | struct snd_soc_codec *codec; |
3441 | int ret, i; | |
151ab22c | 3442 | |
f0fba2ad LG |
3443 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3444 | ||
3445 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3446 | if (codec == NULL) | |
3447 | return -ENOMEM; | |
0d0cf00a | 3448 | |
f0fba2ad LG |
3449 | /* create CODEC component name */ |
3450 | codec->name = fmt_single_name(dev, &codec->id); | |
3451 | if (codec->name == NULL) { | |
3452 | kfree(codec); | |
3453 | return -ENOMEM; | |
3454 | } | |
3455 | ||
23bbce34 DP |
3456 | if (codec_drv->compress_type) |
3457 | codec->compress_type = codec_drv->compress_type; | |
3458 | else | |
3459 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3460 | ||
c3acec26 MB |
3461 | codec->write = codec_drv->write; |
3462 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3463 | codec->volatile_register = codec_drv->volatile_register; |
3464 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3465 | codec->writable_register = codec_drv->writable_register; |
5124e69e | 3466 | codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time; |
ce6120cc LG |
3467 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3468 | codec->dapm.dev = dev; | |
3469 | codec->dapm.codec = codec; | |
474b62d6 | 3470 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3471 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3472 | codec->dev = dev; |
3473 | codec->driver = codec_drv; | |
3474 | codec->num_dai = num_dai; | |
3475 | mutex_init(&codec->mutex); | |
ce6120cc | 3476 | |
f0fba2ad LG |
3477 | /* allocate CODEC register cache */ |
3478 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3479 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3480 | codec->reg_size = reg_size; |
3335ddca DP |
3481 | /* it is necessary to make a copy of the default register cache |
3482 | * because in the case of using a compression type that requires | |
3483 | * the default register cache to be marked as __devinitconst the | |
3484 | * kernel might have freed the array by the time we initialize | |
3485 | * the cache. | |
3486 | */ | |
2aa86323 DP |
3487 | if (codec_drv->reg_cache_default) { |
3488 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3489 | reg_size, GFP_KERNEL); | |
3490 | if (!codec->reg_def_copy) { | |
3491 | ret = -ENOMEM; | |
3492 | goto fail; | |
3493 | } | |
f0fba2ad | 3494 | } |
151ab22c MB |
3495 | } |
3496 | ||
1500b7b5 DP |
3497 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3498 | if (!codec->volatile_register) | |
3499 | codec->volatile_register = snd_soc_default_volatile_register; | |
3500 | if (!codec->readable_register) | |
3501 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3502 | if (!codec->writable_register) |
3503 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3504 | } |
3505 | ||
f0fba2ad LG |
3506 | for (i = 0; i < num_dai; i++) { |
3507 | fixup_codec_formats(&dai_drv[i].playback); | |
3508 | fixup_codec_formats(&dai_drv[i].capture); | |
3509 | } | |
3510 | ||
26b01ccd MB |
3511 | /* register any DAIs */ |
3512 | if (num_dai) { | |
3513 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3514 | if (ret < 0) | |
fdf0f54d | 3515 | goto fail; |
26b01ccd | 3516 | } |
f0fba2ad | 3517 | |
0d0cf00a MB |
3518 | mutex_lock(&client_mutex); |
3519 | list_add(&codec->list, &codec_list); | |
0d0cf00a MB |
3520 | mutex_unlock(&client_mutex); |
3521 | ||
3522 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3523 | return 0; |
f0fba2ad | 3524 | |
fdf0f54d | 3525 | fail: |
3335ddca DP |
3526 | kfree(codec->reg_def_copy); |
3527 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3528 | kfree(codec->name); |
3529 | kfree(codec); | |
3530 | return ret; | |
0d0cf00a MB |
3531 | } |
3532 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3533 | ||
3534 | /** | |
3535 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3536 | * | |
ac11a2b3 | 3537 | * @codec: codec to unregister |
0d0cf00a | 3538 | */ |
f0fba2ad | 3539 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3540 | { |
f0fba2ad LG |
3541 | struct snd_soc_codec *codec; |
3542 | int i; | |
3543 | ||
3544 | list_for_each_entry(codec, &codec_list, list) { | |
3545 | if (dev == codec->dev) | |
3546 | goto found; | |
3547 | } | |
3548 | return; | |
3549 | ||
3550 | found: | |
26b01ccd MB |
3551 | if (codec->num_dai) |
3552 | for (i = 0; i < codec->num_dai; i++) | |
3553 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3554 | |
0d0cf00a MB |
3555 | mutex_lock(&client_mutex); |
3556 | list_del(&codec->list); | |
3557 | mutex_unlock(&client_mutex); | |
3558 | ||
3559 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3560 | |
7a30a3db | 3561 | snd_soc_cache_exit(codec); |
3335ddca | 3562 | kfree(codec->reg_def_copy); |
1aafcd4d | 3563 | kfree(codec->name); |
f0fba2ad | 3564 | kfree(codec); |
0d0cf00a MB |
3565 | } |
3566 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3567 | ||
bec4fa05 SW |
3568 | /* Retrieve a card's name from device tree */ |
3569 | int snd_soc_of_parse_card_name(struct snd_soc_card *card, | |
3570 | const char *propname) | |
3571 | { | |
3572 | struct device_node *np = card->dev->of_node; | |
3573 | int ret; | |
3574 | ||
3575 | ret = of_property_read_string_index(np, propname, 0, &card->name); | |
3576 | /* | |
3577 | * EINVAL means the property does not exist. This is fine providing | |
3578 | * card->name was previously set, which is checked later in | |
3579 | * snd_soc_register_card. | |
3580 | */ | |
3581 | if (ret < 0 && ret != -EINVAL) { | |
3582 | dev_err(card->dev, | |
3583 | "Property '%s' could not be read: %d\n", | |
3584 | propname, ret); | |
3585 | return ret; | |
3586 | } | |
3587 | ||
3588 | return 0; | |
3589 | } | |
3590 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name); | |
3591 | ||
a4a54dd5 SW |
3592 | int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, |
3593 | const char *propname) | |
3594 | { | |
3595 | struct device_node *np = card->dev->of_node; | |
3596 | int num_routes; | |
3597 | struct snd_soc_dapm_route *routes; | |
3598 | int i, ret; | |
3599 | ||
3600 | num_routes = of_property_count_strings(np, propname); | |
3601 | if (num_routes & 1) { | |
3602 | dev_err(card->dev, | |
3603 | "Property '%s's length is not even\n", | |
3604 | propname); | |
3605 | return -EINVAL; | |
3606 | } | |
3607 | num_routes /= 2; | |
3608 | if (!num_routes) { | |
3609 | dev_err(card->dev, | |
3610 | "Property '%s's length is zero\n", | |
3611 | propname); | |
3612 | return -EINVAL; | |
3613 | } | |
3614 | ||
3615 | routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes), | |
3616 | GFP_KERNEL); | |
3617 | if (!routes) { | |
3618 | dev_err(card->dev, | |
3619 | "Could not allocate DAPM route table\n"); | |
3620 | return -EINVAL; | |
3621 | } | |
3622 | ||
3623 | for (i = 0; i < num_routes; i++) { | |
3624 | ret = of_property_read_string_index(np, propname, | |
3625 | 2 * i, &routes[i].sink); | |
3626 | if (ret) { | |
3627 | dev_err(card->dev, | |
3628 | "Property '%s' index %d could not be read: %d\n", | |
3629 | propname, 2 * i, ret); | |
3630 | return -EINVAL; | |
3631 | } | |
3632 | ret = of_property_read_string_index(np, propname, | |
3633 | (2 * i) + 1, &routes[i].source); | |
3634 | if (ret) { | |
3635 | dev_err(card->dev, | |
3636 | "Property '%s' index %d could not be read: %d\n", | |
3637 | propname, (2 * i) + 1, ret); | |
3638 | return -EINVAL; | |
3639 | } | |
3640 | } | |
3641 | ||
3642 | card->num_dapm_routes = num_routes; | |
3643 | card->dapm_routes = routes; | |
3644 | ||
3645 | return 0; | |
3646 | } | |
3647 | EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing); | |
3648 | ||
c9b3a40f | 3649 | static int __init snd_soc_init(void) |
db2a4165 | 3650 | { |
384c89e2 | 3651 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3652 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3653 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
0837fc62 | 3654 | pr_warn("ASoC: Failed to create debugfs directory\n"); |
8a9dab1a | 3655 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3656 | } |
c3c5a19a | 3657 | |
8a9dab1a | 3658 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3659 | &codec_list_fops)) |
3660 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3661 | ||
8a9dab1a | 3662 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3663 | &dai_list_fops)) |
3664 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3665 | |
8a9dab1a | 3666 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3667 | &platform_list_fops)) |
3668 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3669 | #endif |
3670 | ||
fb257897 MB |
3671 | snd_soc_util_init(); |
3672 | ||
db2a4165 FM |
3673 | return platform_driver_register(&soc_driver); |
3674 | } | |
4abe8e16 | 3675 | module_init(snd_soc_init); |
db2a4165 | 3676 | |
7d8c16a6 | 3677 | static void __exit snd_soc_exit(void) |
db2a4165 | 3678 | { |
fb257897 MB |
3679 | snd_soc_util_exit(); |
3680 | ||
384c89e2 | 3681 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3682 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3683 | #endif |
3ff3f64b | 3684 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3685 | } |
db2a4165 FM |
3686 | module_exit(snd_soc_exit); |
3687 | ||
3688 | /* Module information */ | |
d331124d | 3689 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3690 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3691 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3692 | MODULE_ALIAS("platform:soc-audio"); |