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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> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 | 35 | #include <sound/core.h> |
3028eb8c | 36 | #include <sound/jack.h> |
db2a4165 FM |
37 | #include <sound/pcm.h> |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/soc.h> | |
db2a4165 FM |
40 | #include <sound/initval.h> |
41 | ||
a8b1d34f MB |
42 | #define CREATE_TRACE_POINTS |
43 | #include <trace/events/asoc.h> | |
44 | ||
f0fba2ad LG |
45 | #define NAME_SIZE 32 |
46 | ||
db2a4165 FM |
47 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
48 | ||
384c89e2 | 49 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
50 | struct dentry *snd_soc_debugfs_root; |
51 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
52 | #endif |
53 | ||
c5af3a2e MB |
54 | static DEFINE_MUTEX(client_mutex); |
55 | static LIST_HEAD(card_list); | |
9115171a | 56 | static LIST_HEAD(dai_list); |
12a48a8c | 57 | static LIST_HEAD(platform_list); |
0d0cf00a | 58 | static LIST_HEAD(codec_list); |
c5af3a2e | 59 | |
ddee627c | 60 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 61 | |
db2a4165 FM |
62 | /* |
63 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
64 | * It can be used to eliminate pops between different playback streams, e.g. | |
65 | * between two audio tracks. | |
66 | */ | |
67 | static int pmdown_time = 5000; | |
68 | module_param(pmdown_time, int, 0); | |
69 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
70 | ||
2bc9a81e DP |
71 | /* returns the minimum number of bytes needed to represent |
72 | * a particular given value */ | |
73 | static int min_bytes_needed(unsigned long val) | |
74 | { | |
75 | int c = 0; | |
76 | int i; | |
77 | ||
78 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
79 | if (val & (1UL << i)) | |
80 | break; | |
81 | c = (sizeof val * 8) - c; | |
82 | if (!c || (c % 8)) | |
83 | c = (c + 8) / 8; | |
84 | else | |
85 | c /= 8; | |
86 | return c; | |
87 | } | |
88 | ||
13fd179f DP |
89 | /* fill buf which is 'len' bytes with a formatted |
90 | * string of the form 'reg: value\n' */ | |
91 | static int format_register_str(struct snd_soc_codec *codec, | |
92 | unsigned int reg, char *buf, size_t len) | |
93 | { | |
00b317a4 SW |
94 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
95 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
96 | int ret; |
97 | char tmpbuf[len + 1]; | |
98 | char regbuf[regsize + 1]; | |
99 | ||
100 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
101 | * try to abuse this function */ | |
102 | WARN_ON(len > 63); | |
103 | ||
104 | /* +2 for ': ' and + 1 for '\n' */ | |
105 | if (wordsize + regsize + 2 + 1 != len) | |
106 | return -EINVAL; | |
107 | ||
108 | ret = snd_soc_read(codec , reg); | |
109 | if (ret < 0) { | |
110 | memset(regbuf, 'X', regsize); | |
111 | regbuf[regsize] = '\0'; | |
112 | } else { | |
113 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
114 | } | |
115 | ||
116 | /* prepare the buffer */ | |
117 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
118 | /* copy it back to the caller without the '\0' */ | |
119 | memcpy(buf, tmpbuf, len); | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
2624d5fa | 124 | /* codec register dump */ |
13fd179f DP |
125 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
126 | size_t count, loff_t pos) | |
2624d5fa | 127 | { |
13fd179f | 128 | int i, step = 1; |
2bc9a81e | 129 | int wordsize, regsize; |
13fd179f DP |
130 | int len; |
131 | size_t total = 0; | |
132 | loff_t p = 0; | |
2bc9a81e | 133 | |
00b317a4 SW |
134 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
135 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 136 | |
13fd179f DP |
137 | len = wordsize + regsize + 2 + 1; |
138 | ||
f0fba2ad | 139 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
140 | return 0; |
141 | ||
f0fba2ad LG |
142 | if (codec->driver->reg_cache_step) |
143 | step = codec->driver->reg_cache_step; | |
2624d5fa | 144 | |
f0fba2ad | 145 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 146 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa | 147 | continue; |
f0fba2ad LG |
148 | if (codec->driver->display_register) { |
149 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 150 | PAGE_SIZE - count, i); |
5164d74d | 151 | } else { |
13fd179f DP |
152 | /* only support larger than PAGE_SIZE bytes debugfs |
153 | * entries for the default case */ | |
154 | if (p >= pos) { | |
155 | if (total + len >= count - 1) | |
156 | break; | |
157 | format_register_str(codec, i, buf + total, len); | |
158 | total += len; | |
159 | } | |
160 | p += len; | |
5164d74d | 161 | } |
2624d5fa MB |
162 | } |
163 | ||
13fd179f | 164 | total = min(total, count - 1); |
2624d5fa | 165 | |
13fd179f | 166 | return total; |
2624d5fa | 167 | } |
13fd179f | 168 | |
2624d5fa MB |
169 | static ssize_t codec_reg_show(struct device *dev, |
170 | struct device_attribute *attr, char *buf) | |
171 | { | |
f0fba2ad LG |
172 | struct snd_soc_pcm_runtime *rtd = |
173 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
174 | ||
13fd179f | 175 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
176 | } |
177 | ||
178 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
179 | ||
dbe21408 MB |
180 | static ssize_t pmdown_time_show(struct device *dev, |
181 | struct device_attribute *attr, char *buf) | |
182 | { | |
f0fba2ad LG |
183 | struct snd_soc_pcm_runtime *rtd = |
184 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 185 | |
f0fba2ad | 186 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
187 | } |
188 | ||
189 | static ssize_t pmdown_time_set(struct device *dev, | |
190 | struct device_attribute *attr, | |
191 | const char *buf, size_t count) | |
192 | { | |
f0fba2ad LG |
193 | struct snd_soc_pcm_runtime *rtd = |
194 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 195 | int ret; |
dbe21408 | 196 | |
c593b520 MB |
197 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
198 | if (ret) | |
199 | return ret; | |
dbe21408 MB |
200 | |
201 | return count; | |
202 | } | |
203 | ||
204 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
205 | ||
2624d5fa MB |
206 | #ifdef CONFIG_DEBUG_FS |
207 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
208 | { | |
209 | file->private_data = inode->i_private; | |
210 | return 0; | |
211 | } | |
212 | ||
213 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
13fd179f | 214 | size_t count, loff_t *ppos) |
2624d5fa MB |
215 | { |
216 | ssize_t ret; | |
217 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
218 | char *buf; |
219 | ||
220 | if (*ppos < 0 || !count) | |
221 | return -EINVAL; | |
222 | ||
223 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
224 | if (!buf) |
225 | return -ENOMEM; | |
13fd179f DP |
226 | |
227 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
228 | if (ret >= 0) { | |
229 | if (copy_to_user(user_buf, buf, ret)) { | |
230 | kfree(buf); | |
231 | return -EFAULT; | |
232 | } | |
233 | *ppos += ret; | |
234 | } | |
235 | ||
2624d5fa MB |
236 | kfree(buf); |
237 | return ret; | |
238 | } | |
239 | ||
240 | static ssize_t codec_reg_write_file(struct file *file, | |
241 | const char __user *user_buf, size_t count, loff_t *ppos) | |
242 | { | |
243 | char buf[32]; | |
34e268d8 | 244 | size_t buf_size; |
2624d5fa MB |
245 | char *start = buf; |
246 | unsigned long reg, value; | |
247 | int step = 1; | |
248 | struct snd_soc_codec *codec = file->private_data; | |
249 | ||
250 | buf_size = min(count, (sizeof(buf)-1)); | |
251 | if (copy_from_user(buf, user_buf, buf_size)) | |
252 | return -EFAULT; | |
253 | buf[buf_size] = 0; | |
254 | ||
f0fba2ad LG |
255 | if (codec->driver->reg_cache_step) |
256 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
257 | |
258 | while (*start == ' ') | |
259 | start++; | |
260 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
261 | while (*start == ' ') |
262 | start++; | |
263 | if (strict_strtoul(start, 16, &value)) | |
264 | return -EINVAL; | |
0d51a9cb MB |
265 | |
266 | /* Userspace has been fiddling around behind the kernel's back */ | |
267 | add_taint(TAINT_USER); | |
268 | ||
e4f078d8 | 269 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
270 | return buf_size; |
271 | } | |
272 | ||
273 | static const struct file_operations codec_reg_fops = { | |
274 | .open = codec_reg_open_file, | |
275 | .read = codec_reg_read_file, | |
276 | .write = codec_reg_write_file, | |
6038f373 | 277 | .llseek = default_llseek, |
2624d5fa MB |
278 | }; |
279 | ||
280 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
281 | { | |
d6ce4cf3 JN |
282 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
283 | ||
284 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
285 | debugfs_card_root); | |
2624d5fa MB |
286 | if (!codec->debugfs_codec_root) { |
287 | printk(KERN_WARNING | |
288 | "ASoC: Failed to create codec debugfs directory\n"); | |
289 | return; | |
290 | } | |
291 | ||
aaee8ef1 MB |
292 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
293 | &codec->cache_sync); | |
294 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
295 | &codec->cache_only); | |
296 | ||
2624d5fa MB |
297 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
298 | codec->debugfs_codec_root, | |
299 | codec, &codec_reg_fops); | |
300 | if (!codec->debugfs_reg) | |
301 | printk(KERN_WARNING | |
302 | "ASoC: Failed to create codec register debugfs file\n"); | |
303 | ||
8eecaf62 | 304 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
305 | } |
306 | ||
307 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
308 | { | |
309 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
310 | } | |
311 | ||
c3c5a19a MB |
312 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
313 | size_t count, loff_t *ppos) | |
314 | { | |
315 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 316 | ssize_t len, ret = 0; |
c3c5a19a MB |
317 | struct snd_soc_codec *codec; |
318 | ||
319 | if (!buf) | |
320 | return -ENOMEM; | |
321 | ||
2b194f9d MB |
322 | list_for_each_entry(codec, &codec_list, list) { |
323 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
324 | codec->name); | |
325 | if (len >= 0) | |
326 | ret += len; | |
327 | if (ret > PAGE_SIZE) { | |
328 | ret = PAGE_SIZE; | |
329 | break; | |
330 | } | |
331 | } | |
c3c5a19a MB |
332 | |
333 | if (ret >= 0) | |
334 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
335 | ||
336 | kfree(buf); | |
337 | ||
338 | return ret; | |
339 | } | |
340 | ||
341 | static const struct file_operations codec_list_fops = { | |
342 | .read = codec_list_read_file, | |
343 | .llseek = default_llseek,/* read accesses f_pos */ | |
344 | }; | |
345 | ||
f3208780 MB |
346 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
347 | size_t count, loff_t *ppos) | |
348 | { | |
349 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 350 | ssize_t len, ret = 0; |
f3208780 MB |
351 | struct snd_soc_dai *dai; |
352 | ||
353 | if (!buf) | |
354 | return -ENOMEM; | |
355 | ||
2b194f9d MB |
356 | list_for_each_entry(dai, &dai_list, list) { |
357 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
358 | if (len >= 0) | |
359 | ret += len; | |
360 | if (ret > PAGE_SIZE) { | |
361 | ret = PAGE_SIZE; | |
362 | break; | |
363 | } | |
364 | } | |
f3208780 | 365 | |
2b194f9d | 366 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
367 | |
368 | kfree(buf); | |
369 | ||
370 | return ret; | |
371 | } | |
372 | ||
373 | static const struct file_operations dai_list_fops = { | |
374 | .read = dai_list_read_file, | |
375 | .llseek = default_llseek,/* read accesses f_pos */ | |
376 | }; | |
377 | ||
19c7ac27 MB |
378 | static ssize_t platform_list_read_file(struct file *file, |
379 | char __user *user_buf, | |
380 | size_t count, loff_t *ppos) | |
381 | { | |
382 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 383 | ssize_t len, ret = 0; |
19c7ac27 MB |
384 | struct snd_soc_platform *platform; |
385 | ||
386 | if (!buf) | |
387 | return -ENOMEM; | |
388 | ||
2b194f9d MB |
389 | list_for_each_entry(platform, &platform_list, list) { |
390 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
391 | platform->name); | |
392 | if (len >= 0) | |
393 | ret += len; | |
394 | if (ret > PAGE_SIZE) { | |
395 | ret = PAGE_SIZE; | |
396 | break; | |
397 | } | |
398 | } | |
19c7ac27 | 399 | |
2b194f9d | 400 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
401 | |
402 | kfree(buf); | |
403 | ||
404 | return ret; | |
405 | } | |
406 | ||
407 | static const struct file_operations platform_list_fops = { | |
408 | .read = platform_list_read_file, | |
409 | .llseek = default_llseek,/* read accesses f_pos */ | |
410 | }; | |
411 | ||
a6052154 JN |
412 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
413 | { | |
414 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 415 | snd_soc_debugfs_root); |
3a45b867 | 416 | if (!card->debugfs_card_root) { |
a6052154 JN |
417 | dev_warn(card->dev, |
418 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
419 | return; |
420 | } | |
421 | ||
422 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
423 | card->debugfs_card_root, | |
424 | &card->pop_time); | |
425 | if (!card->debugfs_pop_time) | |
426 | dev_warn(card->dev, | |
427 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
428 | } |
429 | ||
430 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
431 | { | |
432 | debugfs_remove_recursive(card->debugfs_card_root); | |
433 | } | |
434 | ||
2624d5fa MB |
435 | #else |
436 | ||
437 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
438 | { | |
439 | } | |
440 | ||
441 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
442 | { | |
443 | } | |
b95fccbc AL |
444 | |
445 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
446 | { | |
447 | } | |
448 | ||
449 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
450 | { | |
451 | } | |
2624d5fa MB |
452 | #endif |
453 | ||
db2a4165 FM |
454 | #ifdef CONFIG_SND_SOC_AC97_BUS |
455 | /* unregister ac97 codec */ | |
456 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
457 | { | |
458 | if (codec->ac97->dev.bus) | |
459 | device_unregister(&codec->ac97->dev); | |
460 | return 0; | |
461 | } | |
462 | ||
463 | /* stop no dev release warning */ | |
464 | static void soc_ac97_device_release(struct device *dev){} | |
465 | ||
466 | /* register ac97 codec to bus */ | |
467 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
468 | { | |
469 | int err; | |
470 | ||
471 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 472 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
473 | codec->ac97->dev.release = soc_ac97_device_release; |
474 | ||
bb072bf0 | 475 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 476 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
477 | err = device_register(&codec->ac97->dev); |
478 | if (err < 0) { | |
479 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
480 | codec->ac97->dev.bus = NULL; | |
481 | return err; | |
482 | } | |
483 | return 0; | |
484 | } | |
485 | #endif | |
486 | ||
6f8ab4ac | 487 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 488 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 489 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 490 | { |
6f8ab4ac | 491 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 492 | struct snd_soc_codec *codec; |
db2a4165 FM |
493 | int i; |
494 | ||
e3509ff0 DM |
495 | /* If the initialization of this soc device failed, there is no codec |
496 | * associated with it. Just bail out in this case. | |
497 | */ | |
f0fba2ad | 498 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
499 | return 0; |
500 | ||
6ed25978 AG |
501 | /* Due to the resume being scheduled into a workqueue we could |
502 | * suspend before that's finished - wait for it to complete. | |
503 | */ | |
f0fba2ad LG |
504 | snd_power_lock(card->snd_card); |
505 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
506 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
507 | |
508 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 509 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 510 | |
a00f90f9 | 511 | /* mute any active DACs */ |
f0fba2ad LG |
512 | for (i = 0; i < card->num_rtd; i++) { |
513 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
514 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 515 | |
f0fba2ad | 516 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
517 | continue; |
518 | ||
f0fba2ad LG |
519 | if (drv->ops->digital_mute && dai->playback_active) |
520 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
521 | } |
522 | ||
4ccab3e7 | 523 | /* suspend all pcms */ |
f0fba2ad LG |
524 | for (i = 0; i < card->num_rtd; i++) { |
525 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
526 | continue; |
527 | ||
f0fba2ad | 528 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 529 | } |
4ccab3e7 | 530 | |
87506549 | 531 | if (card->suspend_pre) |
70b2ac12 | 532 | card->suspend_pre(card); |
db2a4165 | 533 | |
f0fba2ad LG |
534 | for (i = 0; i < card->num_rtd; i++) { |
535 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
536 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 537 | |
f0fba2ad | 538 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
539 | continue; |
540 | ||
f0fba2ad LG |
541 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
542 | cpu_dai->driver->suspend(cpu_dai); | |
543 | if (platform->driver->suspend && !platform->suspended) { | |
544 | platform->driver->suspend(cpu_dai); | |
545 | platform->suspended = 1; | |
546 | } | |
db2a4165 FM |
547 | } |
548 | ||
549 | /* close any waiting streams and save state */ | |
f0fba2ad | 550 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 551 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 552 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 553 | } |
db2a4165 | 554 | |
f0fba2ad LG |
555 | for (i = 0; i < card->num_rtd; i++) { |
556 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 557 | |
f0fba2ad | 558 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
559 | continue; |
560 | ||
f0fba2ad LG |
561 | if (driver->playback.stream_name != NULL) |
562 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 563 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
564 | |
565 | if (driver->capture.stream_name != NULL) | |
566 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
567 | SND_SOC_DAPM_STREAM_SUSPEND); |
568 | } | |
569 | ||
f0fba2ad | 570 | /* suspend all CODECs */ |
2eea392d | 571 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
572 | /* If there are paths active then the CODEC will be held with |
573 | * bias _ON and should not be suspended. */ | |
574 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 575 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
576 | case SND_SOC_BIAS_STANDBY: |
577 | case SND_SOC_BIAS_OFF: | |
578 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
579 | codec->suspended = 1; | |
7be4ba24 | 580 | codec->cache_sync = 1; |
f0fba2ad LG |
581 | break; |
582 | default: | |
583 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
584 | break; | |
585 | } | |
1547aba9 MB |
586 | } |
587 | } | |
db2a4165 | 588 | |
f0fba2ad LG |
589 | for (i = 0; i < card->num_rtd; i++) { |
590 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 591 | |
f0fba2ad | 592 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
593 | continue; |
594 | ||
f0fba2ad LG |
595 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
596 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
597 | } |
598 | ||
87506549 | 599 | if (card->suspend_post) |
70b2ac12 | 600 | card->suspend_post(card); |
db2a4165 FM |
601 | |
602 | return 0; | |
603 | } | |
6f8ab4ac | 604 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 605 | |
6ed25978 AG |
606 | /* deferred resume work, so resume can complete before we finished |
607 | * setting our codec back up, which can be very slow on I2C | |
608 | */ | |
609 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 610 | { |
f0fba2ad LG |
611 | struct snd_soc_card *card = |
612 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 613 | struct snd_soc_codec *codec; |
db2a4165 FM |
614 | int i; |
615 | ||
6ed25978 AG |
616 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
617 | * so userspace apps are blocked from touching us | |
618 | */ | |
619 | ||
f0fba2ad | 620 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 621 | |
9949788b | 622 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 623 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 624 | |
87506549 | 625 | if (card->resume_pre) |
70b2ac12 | 626 | card->resume_pre(card); |
db2a4165 | 627 | |
f0fba2ad LG |
628 | /* resume AC97 DAIs */ |
629 | for (i = 0; i < card->num_rtd; i++) { | |
630 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 631 | |
f0fba2ad | 632 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
633 | continue; |
634 | ||
f0fba2ad LG |
635 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
636 | cpu_dai->driver->resume(cpu_dai); | |
637 | } | |
638 | ||
2eea392d | 639 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
640 | /* If the CODEC was idle over suspend then it will have been |
641 | * left with bias OFF or STANDBY and suspended so we must now | |
642 | * resume. Otherwise the suspend was suppressed. | |
643 | */ | |
644 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 645 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
646 | case SND_SOC_BIAS_STANDBY: |
647 | case SND_SOC_BIAS_OFF: | |
648 | codec->driver->resume(codec); | |
649 | codec->suspended = 0; | |
650 | break; | |
651 | default: | |
652 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
653 | break; | |
654 | } | |
1547aba9 MB |
655 | } |
656 | } | |
db2a4165 | 657 | |
f0fba2ad LG |
658 | for (i = 0; i < card->num_rtd; i++) { |
659 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 660 | |
f0fba2ad | 661 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
662 | continue; |
663 | ||
f0fba2ad LG |
664 | if (driver->playback.stream_name != NULL) |
665 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 666 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
667 | |
668 | if (driver->capture.stream_name != NULL) | |
669 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
670 | SND_SOC_DAPM_STREAM_RESUME); |
671 | } | |
672 | ||
3ff3f64b | 673 | /* unmute any active DACs */ |
f0fba2ad LG |
674 | for (i = 0; i < card->num_rtd; i++) { |
675 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
676 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 677 | |
f0fba2ad | 678 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
679 | continue; |
680 | ||
f0fba2ad LG |
681 | if (drv->ops->digital_mute && dai->playback_active) |
682 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
683 | } |
684 | ||
f0fba2ad LG |
685 | for (i = 0; i < card->num_rtd; i++) { |
686 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
687 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 688 | |
f0fba2ad | 689 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
690 | continue; |
691 | ||
f0fba2ad LG |
692 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
693 | cpu_dai->driver->resume(cpu_dai); | |
694 | if (platform->driver->resume && platform->suspended) { | |
695 | platform->driver->resume(cpu_dai); | |
696 | platform->suspended = 0; | |
697 | } | |
db2a4165 FM |
698 | } |
699 | ||
87506549 | 700 | if (card->resume_post) |
70b2ac12 | 701 | card->resume_post(card); |
db2a4165 | 702 | |
f0fba2ad | 703 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
704 | |
705 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 706 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
707 | } |
708 | ||
709 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 710 | int snd_soc_resume(struct device *dev) |
6ed25978 | 711 | { |
6f8ab4ac | 712 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 713 | int i, ac97_control = 0; |
b9dd94a8 | 714 | |
64ab9baa MB |
715 | /* AC97 devices might have other drivers hanging off them so |
716 | * need to resume immediately. Other drivers don't have that | |
717 | * problem and may take a substantial amount of time to resume | |
718 | * due to I/O costs and anti-pop so handle them out of line. | |
719 | */ | |
f0fba2ad LG |
720 | for (i = 0; i < card->num_rtd; i++) { |
721 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
722 | ac97_control |= cpu_dai->driver->ac97_control; |
723 | } | |
724 | if (ac97_control) { | |
725 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
726 | soc_resume_deferred(&card->deferred_resume_work); | |
727 | } else { | |
728 | dev_dbg(dev, "Scheduling resume work\n"); | |
729 | if (!schedule_work(&card->deferred_resume_work)) | |
730 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 731 | } |
6ed25978 | 732 | |
db2a4165 FM |
733 | return 0; |
734 | } | |
6f8ab4ac | 735 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 736 | #else |
6f8ab4ac MB |
737 | #define snd_soc_suspend NULL |
738 | #define snd_soc_resume NULL | |
db2a4165 FM |
739 | #endif |
740 | ||
02a06d30 BS |
741 | static struct snd_soc_dai_ops null_dai_ops = { |
742 | }; | |
743 | ||
f0fba2ad | 744 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 745 | { |
f0fba2ad LG |
746 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
747 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 748 | struct snd_soc_codec *codec; |
435c5e25 | 749 | struct snd_soc_platform *platform; |
f0fba2ad | 750 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 751 | const char *platform_name; |
435c5e25 | 752 | |
f0fba2ad LG |
753 | if (rtd->complete) |
754 | return 1; | |
755 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 756 | |
f0fba2ad LG |
757 | /* do we already have the CPU DAI for this link ? */ |
758 | if (rtd->cpu_dai) { | |
759 | goto find_codec; | |
760 | } | |
761 | /* no, then find CPU DAI from registered DAIs*/ | |
762 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
763 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
f0fba2ad LG |
764 | rtd->cpu_dai = cpu_dai; |
765 | goto find_codec; | |
435c5e25 | 766 | } |
435c5e25 | 767 | } |
f0fba2ad LG |
768 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
769 | dai_link->cpu_dai_name); | |
6308419a | 770 | |
f0fba2ad LG |
771 | find_codec: |
772 | /* do we already have the CODEC for this link ? */ | |
773 | if (rtd->codec) { | |
774 | goto find_platform; | |
775 | } | |
776 | ||
777 | /* no, then find CODEC from registered CODECs*/ | |
778 | list_for_each_entry(codec, &codec_list, list) { | |
779 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
780 | rtd->codec = codec; | |
781 | ||
f0fba2ad LG |
782 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
783 | list_for_each_entry(codec_dai, &dai_list, list) { | |
784 | if (codec->dev == codec_dai->dev && | |
785 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
786 | rtd->codec_dai = codec_dai; | |
787 | goto find_platform; | |
788 | } | |
435c5e25 | 789 | } |
f0fba2ad LG |
790 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
791 | dai_link->codec_dai_name); | |
792 | ||
793 | goto find_platform; | |
435c5e25 | 794 | } |
f0fba2ad LG |
795 | } |
796 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
797 | dai_link->codec_name); | |
6b05eda6 | 798 | |
f0fba2ad | 799 | find_platform: |
848dd8be MB |
800 | /* do we need a platform? */ |
801 | if (rtd->platform) | |
f0fba2ad | 802 | goto out; |
848dd8be MB |
803 | |
804 | /* if there's no platform we match on the empty platform */ | |
805 | platform_name = dai_link->platform_name; | |
806 | if (!platform_name) | |
807 | platform_name = "snd-soc-dummy"; | |
808 | ||
809 | /* no, then find one from the set of registered platforms */ | |
f0fba2ad | 810 | list_for_each_entry(platform, &platform_list, list) { |
848dd8be | 811 | if (!strcmp(platform->name, platform_name)) { |
f0fba2ad LG |
812 | rtd->platform = platform; |
813 | goto out; | |
814 | } | |
02a06d30 BS |
815 | } |
816 | ||
f0fba2ad LG |
817 | dev_dbg(card->dev, "platform %s not registered\n", |
818 | dai_link->platform_name); | |
819 | return 0; | |
820 | ||
821 | out: | |
822 | /* mark rtd as complete if we found all 4 of our client devices */ | |
823 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
824 | rtd->complete = 1; | |
825 | card->num_rtd++; | |
826 | } | |
827 | return 1; | |
828 | } | |
829 | ||
589c3563 JN |
830 | static void soc_remove_codec(struct snd_soc_codec *codec) |
831 | { | |
832 | int err; | |
833 | ||
834 | if (codec->driver->remove) { | |
835 | err = codec->driver->remove(codec); | |
836 | if (err < 0) | |
837 | dev_err(codec->dev, | |
838 | "asoc: failed to remove %s: %d\n", | |
839 | codec->name, err); | |
840 | } | |
841 | ||
842 | /* Make sure all DAPM widgets are freed */ | |
843 | snd_soc_dapm_free(&codec->dapm); | |
844 | ||
845 | soc_cleanup_codec_debugfs(codec); | |
846 | codec->probed = 0; | |
847 | list_del(&codec->card_list); | |
848 | module_put(codec->dev->driver->owner); | |
849 | } | |
850 | ||
0168bf0d | 851 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
852 | { |
853 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
854 | struct snd_soc_codec *codec = rtd->codec; | |
855 | struct snd_soc_platform *platform = rtd->platform; | |
856 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
857 | int err; | |
858 | ||
859 | /* unregister the rtd device */ | |
860 | if (rtd->dev_registered) { | |
861 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 862 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
863 | device_unregister(&rtd->dev); |
864 | rtd->dev_registered = 0; | |
865 | } | |
866 | ||
867 | /* remove the CODEC DAI */ | |
0168bf0d LG |
868 | if (codec_dai && codec_dai->probed && |
869 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
870 | if (codec_dai->driver->remove) { |
871 | err = codec_dai->driver->remove(codec_dai); | |
872 | if (err < 0) | |
873 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 874 | } |
f0fba2ad LG |
875 | codec_dai->probed = 0; |
876 | list_del(&codec_dai->card_list); | |
877 | } | |
6b05eda6 | 878 | |
f0fba2ad | 879 | /* remove the platform */ |
0168bf0d LG |
880 | if (platform && platform->probed && |
881 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
882 | if (platform->driver->remove) { |
883 | err = platform->driver->remove(platform); | |
884 | if (err < 0) | |
885 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
886 | } | |
887 | platform->probed = 0; | |
888 | list_del(&platform->card_list); | |
889 | module_put(platform->dev->driver->owner); | |
890 | } | |
435c5e25 | 891 | |
f0fba2ad | 892 | /* remove the CODEC */ |
0168bf0d LG |
893 | if (codec && codec->probed && |
894 | codec->driver->remove_order == order) | |
589c3563 | 895 | soc_remove_codec(codec); |
db2a4165 | 896 | |
f0fba2ad | 897 | /* remove the cpu_dai */ |
0168bf0d LG |
898 | if (cpu_dai && cpu_dai->probed && |
899 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
900 | if (cpu_dai->driver->remove) { |
901 | err = cpu_dai->driver->remove(cpu_dai); | |
902 | if (err < 0) | |
903 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 904 | } |
f0fba2ad LG |
905 | cpu_dai->probed = 0; |
906 | list_del(&cpu_dai->card_list); | |
907 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 908 | } |
f0fba2ad | 909 | } |
db2a4165 | 910 | |
0671fd8e KM |
911 | static void soc_remove_dai_links(struct snd_soc_card *card) |
912 | { | |
0168bf0d | 913 | int dai, order; |
0671fd8e | 914 | |
0168bf0d LG |
915 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
916 | order++) { | |
917 | for (dai = 0; dai < card->num_rtd; dai++) | |
918 | soc_remove_dai_link(card, dai, order); | |
919 | } | |
0671fd8e KM |
920 | card->num_rtd = 0; |
921 | } | |
922 | ||
ead9b919 JN |
923 | static void soc_set_name_prefix(struct snd_soc_card *card, |
924 | struct snd_soc_codec *codec) | |
925 | { | |
926 | int i; | |
927 | ||
ff819b83 | 928 | if (card->codec_conf == NULL) |
ead9b919 JN |
929 | return; |
930 | ||
ff819b83 DP |
931 | for (i = 0; i < card->num_configs; i++) { |
932 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
933 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
934 | codec->name_prefix = map->name_prefix; | |
935 | break; | |
936 | } | |
937 | } | |
938 | } | |
939 | ||
589c3563 JN |
940 | static int soc_probe_codec(struct snd_soc_card *card, |
941 | struct snd_soc_codec *codec) | |
942 | { | |
943 | int ret = 0; | |
89b95ac0 | 944 | const struct snd_soc_codec_driver *driver = codec->driver; |
589c3563 JN |
945 | |
946 | codec->card = card; | |
947 | codec->dapm.card = card; | |
948 | soc_set_name_prefix(card, codec); | |
949 | ||
70d29331 JN |
950 | if (!try_module_get(codec->dev->driver->owner)) |
951 | return -ENODEV; | |
952 | ||
d5d1e0be LPC |
953 | soc_init_codec_debugfs(codec); |
954 | ||
77530150 LPC |
955 | if (driver->dapm_widgets) |
956 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
957 | driver->num_dapm_widgets); | |
958 | ||
89b95ac0 MB |
959 | if (driver->probe) { |
960 | ret = driver->probe(codec); | |
589c3563 JN |
961 | if (ret < 0) { |
962 | dev_err(codec->dev, | |
963 | "asoc: failed to probe CODEC %s: %d\n", | |
964 | codec->name, ret); | |
70d29331 | 965 | goto err_probe; |
589c3563 JN |
966 | } |
967 | } | |
968 | ||
b7af1daf MB |
969 | if (driver->controls) |
970 | snd_soc_add_controls(codec, driver->controls, | |
971 | driver->num_controls); | |
89b95ac0 MB |
972 | if (driver->dapm_routes) |
973 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
974 | driver->num_dapm_routes); | |
975 | ||
589c3563 JN |
976 | /* mark codec as probed and add to card codec list */ |
977 | codec->probed = 1; | |
978 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 979 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 980 | |
70d29331 JN |
981 | return 0; |
982 | ||
983 | err_probe: | |
d5d1e0be | 984 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
985 | module_put(codec->dev->driver->owner); |
986 | ||
589c3563 JN |
987 | return ret; |
988 | } | |
989 | ||
956245e9 LG |
990 | static int soc_probe_platform(struct snd_soc_card *card, |
991 | struct snd_soc_platform *platform) | |
992 | { | |
993 | int ret = 0; | |
994 | const struct snd_soc_platform_driver *driver = platform->driver; | |
995 | ||
996 | platform->card = card; | |
b7950641 | 997 | platform->dapm.card = card; |
956245e9 LG |
998 | |
999 | if (!try_module_get(platform->dev->driver->owner)) | |
1000 | return -ENODEV; | |
1001 | ||
cb2cf612 LG |
1002 | if (driver->dapm_widgets) |
1003 | snd_soc_dapm_new_controls(&platform->dapm, | |
1004 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1005 | ||
956245e9 LG |
1006 | if (driver->probe) { |
1007 | ret = driver->probe(platform); | |
1008 | if (ret < 0) { | |
1009 | dev_err(platform->dev, | |
1010 | "asoc: failed to probe platform %s: %d\n", | |
1011 | platform->name, ret); | |
1012 | goto err_probe; | |
1013 | } | |
1014 | } | |
1015 | ||
cb2cf612 LG |
1016 | if (driver->controls) |
1017 | snd_soc_add_platform_controls(platform, driver->controls, | |
1018 | driver->num_controls); | |
1019 | if (driver->dapm_routes) | |
1020 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1021 | driver->num_dapm_routes); | |
1022 | ||
956245e9 LG |
1023 | /* mark platform as probed and add to card platform list */ |
1024 | platform->probed = 1; | |
1025 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1026 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1027 | |
1028 | return 0; | |
1029 | ||
1030 | err_probe: | |
1031 | module_put(platform->dev->driver->owner); | |
1032 | ||
1033 | return ret; | |
1034 | } | |
1035 | ||
f0fba2ad LG |
1036 | static void rtd_release(struct device *dev) {} |
1037 | ||
589c3563 JN |
1038 | static int soc_post_component_init(struct snd_soc_card *card, |
1039 | struct snd_soc_codec *codec, | |
1040 | int num, int dailess) | |
1041 | { | |
1042 | struct snd_soc_dai_link *dai_link = NULL; | |
1043 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1044 | struct snd_soc_pcm_runtime *rtd; | |
1045 | const char *temp, *name; | |
1046 | int ret = 0; | |
1047 | ||
1048 | if (!dailess) { | |
1049 | dai_link = &card->dai_link[num]; | |
1050 | rtd = &card->rtd[num]; | |
1051 | name = dai_link->name; | |
1052 | } else { | |
1053 | aux_dev = &card->aux_dev[num]; | |
1054 | rtd = &card->rtd_aux[num]; | |
1055 | name = aux_dev->name; | |
1056 | } | |
0962bb21 | 1057 | rtd->card = card; |
589c3563 JN |
1058 | |
1059 | /* machine controls, routes and widgets are not prefixed */ | |
1060 | temp = codec->name_prefix; | |
1061 | codec->name_prefix = NULL; | |
1062 | ||
1063 | /* do machine specific initialization */ | |
1064 | if (!dailess && dai_link->init) | |
1065 | ret = dai_link->init(rtd); | |
1066 | else if (dailess && aux_dev->init) | |
1067 | ret = aux_dev->init(&codec->dapm); | |
1068 | if (ret < 0) { | |
1069 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1070 | return ret; | |
1071 | } | |
1072 | codec->name_prefix = temp; | |
1073 | ||
1074 | /* Make sure all DAPM widgets are instantiated */ | |
1075 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1076 | |
1077 | /* register the rtd device */ | |
1078 | rtd->codec = codec; | |
589c3563 JN |
1079 | rtd->dev.parent = card->dev; |
1080 | rtd->dev.release = rtd_release; | |
1081 | rtd->dev.init_name = name; | |
b8c0dab9 | 1082 | mutex_init(&rtd->pcm_mutex); |
589c3563 JN |
1083 | ret = device_register(&rtd->dev); |
1084 | if (ret < 0) { | |
1085 | dev_err(card->dev, | |
1086 | "asoc: failed to register runtime device: %d\n", ret); | |
1087 | return ret; | |
1088 | } | |
1089 | rtd->dev_registered = 1; | |
1090 | ||
1091 | /* add DAPM sysfs entries for this codec */ | |
1092 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1093 | if (ret < 0) | |
1094 | dev_err(codec->dev, | |
1095 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1096 | ret); | |
1097 | ||
1098 | /* add codec sysfs entries */ | |
1099 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1100 | if (ret < 0) | |
1101 | dev_err(codec->dev, | |
1102 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1103 | ||
1104 | return 0; | |
1105 | } | |
1106 | ||
0168bf0d | 1107 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1108 | { |
1109 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1110 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1111 | struct snd_soc_codec *codec = rtd->codec; | |
1112 | struct snd_soc_platform *platform = rtd->platform; | |
1113 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1114 | int ret; | |
1115 | ||
0168bf0d LG |
1116 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1117 | card->name, num, order); | |
f0fba2ad LG |
1118 | |
1119 | /* config components */ | |
1120 | codec_dai->codec = codec; | |
f0fba2ad | 1121 | cpu_dai->platform = platform; |
f0fba2ad LG |
1122 | codec_dai->card = card; |
1123 | cpu_dai->card = card; | |
1124 | ||
1125 | /* set default power off timeout */ | |
1126 | rtd->pmdown_time = pmdown_time; | |
1127 | ||
1128 | /* probe the cpu_dai */ | |
0168bf0d LG |
1129 | if (!cpu_dai->probed && |
1130 | cpu_dai->driver->probe_order == order) { | |
61b61e3c LG |
1131 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1132 | return -ENODEV; | |
1133 | ||
f0fba2ad LG |
1134 | if (cpu_dai->driver->probe) { |
1135 | ret = cpu_dai->driver->probe(cpu_dai); | |
1136 | if (ret < 0) { | |
1137 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1138 | cpu_dai->name); | |
61b61e3c | 1139 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1140 | return ret; |
1141 | } | |
1142 | } | |
1143 | cpu_dai->probed = 1; | |
1c8371d6 | 1144 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1145 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1146 | } |
1147 | ||
f0fba2ad | 1148 | /* probe the CODEC */ |
0168bf0d LG |
1149 | if (!codec->probed && |
1150 | codec->driver->probe_order == order) { | |
589c3563 JN |
1151 | ret = soc_probe_codec(card, codec); |
1152 | if (ret < 0) | |
1153 | return ret; | |
db2a4165 FM |
1154 | } |
1155 | ||
f0fba2ad | 1156 | /* probe the platform */ |
0168bf0d LG |
1157 | if (!platform->probed && |
1158 | platform->driver->probe_order == order) { | |
956245e9 LG |
1159 | ret = soc_probe_platform(card, platform); |
1160 | if (ret < 0) | |
1161 | return ret; | |
f0fba2ad | 1162 | } |
6ed25978 | 1163 | |
f0fba2ad | 1164 | /* probe the CODEC DAI */ |
0168bf0d | 1165 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1166 | if (codec_dai->driver->probe) { |
1167 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1168 | if (ret < 0) { |
f0fba2ad LG |
1169 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1170 | codec_dai->name); | |
1171 | return ret; | |
fe3e78e0 MB |
1172 | } |
1173 | } | |
f0fba2ad | 1174 | |
1c8371d6 | 1175 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1176 | codec_dai->probed = 1; |
1177 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1178 | } |
1179 | ||
0168bf0d LG |
1180 | /* complete DAI probe during last probe */ |
1181 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1182 | return 0; | |
1183 | ||
589c3563 JN |
1184 | ret = soc_post_component_init(card, codec, num, 0); |
1185 | if (ret) | |
f0fba2ad | 1186 | return ret; |
fe3e78e0 | 1187 | |
f0fba2ad LG |
1188 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1189 | if (ret < 0) | |
1190 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1191 | ||
f0fba2ad LG |
1192 | /* create the pcm */ |
1193 | ret = soc_new_pcm(rtd, num); | |
1194 | if (ret < 0) { | |
1195 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1196 | return ret; | |
1197 | } | |
1198 | ||
1199 | /* add platform data for AC97 devices */ | |
1200 | if (rtd->codec_dai->driver->ac97_control) | |
1201 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1202 | ||
1203 | return 0; | |
1204 | } | |
1205 | ||
fe3e78e0 | 1206 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1207 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1208 | { | |
1209 | int ret; | |
1210 | ||
fe3e78e0 MB |
1211 | /* Only instantiate AC97 if not already done by the adaptor |
1212 | * for the generic AC97 subsystem. | |
1213 | */ | |
f0fba2ad | 1214 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1215 | /* |
1216 | * It is possible that the AC97 device is already registered to | |
1217 | * the device subsystem. This happens when the device is created | |
1218 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1219 | * is the generic AC97 glue but others migh emerge. | |
1220 | * | |
1221 | * In those cases we don't try to register the device again. | |
1222 | */ | |
1223 | if (!rtd->codec->ac97_created) | |
1224 | return 0; | |
f0fba2ad LG |
1225 | |
1226 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1227 | if (ret < 0) { |
1228 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1229 | return ret; |
fe3e78e0 | 1230 | } |
f0fba2ad LG |
1231 | |
1232 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1233 | } |
f0fba2ad LG |
1234 | return 0; |
1235 | } | |
1236 | ||
1237 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1238 | { | |
1239 | if (codec->ac97_registered) { | |
1240 | soc_ac97_dev_unregister(codec); | |
1241 | codec->ac97_registered = 0; | |
1242 | } | |
1243 | } | |
fe3e78e0 MB |
1244 | #endif |
1245 | ||
2eea392d JN |
1246 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1247 | { | |
1248 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1249 | struct snd_soc_codec *codec; |
676ad98a | 1250 | int ret = -ENODEV; |
2eea392d JN |
1251 | |
1252 | /* find CODEC from registered CODECs*/ | |
1253 | list_for_each_entry(codec, &codec_list, list) { | |
1254 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1255 | if (codec->probed) { | |
1256 | dev_err(codec->dev, | |
1257 | "asoc: codec already probed"); | |
1258 | ret = -EBUSY; | |
1259 | goto out; | |
1260 | } | |
676ad98a | 1261 | goto found; |
2eea392d JN |
1262 | } |
1263 | } | |
676ad98a JN |
1264 | /* codec not found */ |
1265 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1266 | goto out; | |
2eea392d | 1267 | |
676ad98a | 1268 | found: |
589c3563 | 1269 | ret = soc_probe_codec(card, codec); |
2eea392d | 1270 | if (ret < 0) |
589c3563 | 1271 | return ret; |
2eea392d | 1272 | |
589c3563 | 1273 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1274 | |
1275 | out: | |
1276 | return ret; | |
1277 | } | |
1278 | ||
1279 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1280 | { | |
1281 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1282 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1283 | |
1284 | /* unregister the rtd device */ | |
1285 | if (rtd->dev_registered) { | |
589c3563 | 1286 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1287 | device_unregister(&rtd->dev); |
1288 | rtd->dev_registered = 0; | |
1289 | } | |
1290 | ||
589c3563 JN |
1291 | if (codec && codec->probed) |
1292 | soc_remove_codec(codec); | |
2eea392d JN |
1293 | } |
1294 | ||
fdf0f54d DP |
1295 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1296 | enum snd_soc_compress_type compress_type) | |
1297 | { | |
1298 | int ret; | |
1299 | ||
1300 | if (codec->cache_init) | |
1301 | return 0; | |
1302 | ||
1303 | /* override the compress_type if necessary */ | |
1304 | if (compress_type && codec->compress_type != compress_type) | |
1305 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1306 | ret = snd_soc_cache_init(codec); |
1307 | if (ret < 0) { | |
1308 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1309 | ret); | |
1310 | return ret; | |
1311 | } | |
1312 | codec->cache_init = 1; | |
1313 | return 0; | |
1314 | } | |
1315 | ||
f0fba2ad LG |
1316 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1317 | { | |
fdf0f54d DP |
1318 | struct snd_soc_codec *codec; |
1319 | struct snd_soc_codec_conf *codec_conf; | |
1320 | enum snd_soc_compress_type compress_type; | |
0168bf0d | 1321 | int ret, i, order; |
fe3e78e0 | 1322 | |
f0fba2ad | 1323 | mutex_lock(&card->mutex); |
dbe21408 | 1324 | |
f0fba2ad LG |
1325 | if (card->instantiated) { |
1326 | mutex_unlock(&card->mutex); | |
1327 | return; | |
1328 | } | |
fe3e78e0 | 1329 | |
f0fba2ad LG |
1330 | /* bind DAIs */ |
1331 | for (i = 0; i < card->num_links; i++) | |
1332 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1333 | |
f0fba2ad LG |
1334 | /* bind completed ? */ |
1335 | if (card->num_rtd != card->num_links) { | |
1336 | mutex_unlock(&card->mutex); | |
1337 | return; | |
1338 | } | |
435c5e25 | 1339 | |
fdf0f54d DP |
1340 | /* initialize the register cache for each available codec */ |
1341 | list_for_each_entry(codec, &codec_list, list) { | |
1342 | if (codec->cache_init) | |
1343 | continue; | |
861f2faf DP |
1344 | /* by default we don't override the compress_type */ |
1345 | compress_type = 0; | |
fdf0f54d DP |
1346 | /* check to see if we need to override the compress_type */ |
1347 | for (i = 0; i < card->num_configs; ++i) { | |
1348 | codec_conf = &card->codec_conf[i]; | |
1349 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1350 | compress_type = codec_conf->compress_type; | |
1351 | if (compress_type && compress_type | |
1352 | != codec->compress_type) | |
1353 | break; | |
1354 | } | |
1355 | } | |
fdf0f54d DP |
1356 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1357 | if (ret < 0) { | |
1358 | mutex_unlock(&card->mutex); | |
1359 | return; | |
1360 | } | |
1361 | } | |
1362 | ||
f0fba2ad LG |
1363 | /* card bind complete so register a sound card */ |
1364 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1365 | card->owner, 0, &card->snd_card); | |
1366 | if (ret < 0) { | |
1367 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1368 | card->name); | |
1369 | mutex_unlock(&card->mutex); | |
1370 | return; | |
1371 | } | |
1372 | card->snd_card->dev = card->dev; | |
1373 | ||
e37a4970 MB |
1374 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1375 | card->dapm.dev = card->dev; | |
1376 | card->dapm.card = card; | |
1377 | list_add(&card->dapm.list, &card->dapm_list); | |
1378 | ||
d5d1e0be LPC |
1379 | #ifdef CONFIG_DEBUG_FS |
1380 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1381 | #endif | |
1382 | ||
88ee1c61 | 1383 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1384 | /* deferred resume work */ |
1385 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1386 | #endif | |
db2a4165 | 1387 | |
9a841ebb MB |
1388 | if (card->dapm_widgets) |
1389 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1390 | card->num_dapm_widgets); | |
1391 | ||
f0fba2ad LG |
1392 | /* initialise the sound card only once */ |
1393 | if (card->probe) { | |
e7361ec4 | 1394 | ret = card->probe(card); |
f0fba2ad LG |
1395 | if (ret < 0) |
1396 | goto card_probe_error; | |
1397 | } | |
fe3e78e0 | 1398 | |
0168bf0d LG |
1399 | /* early DAI link probe */ |
1400 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1401 | order++) { | |
1402 | for (i = 0; i < card->num_links; i++) { | |
1403 | ret = soc_probe_dai_link(card, i, order); | |
1404 | if (ret < 0) { | |
1405 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1406 | card->name, ret); |
0168bf0d LG |
1407 | goto probe_dai_err; |
1408 | } | |
f0fba2ad LG |
1409 | } |
1410 | } | |
db2a4165 | 1411 | |
2eea392d JN |
1412 | for (i = 0; i < card->num_aux_devs; i++) { |
1413 | ret = soc_probe_aux_dev(card, i); | |
1414 | if (ret < 0) { | |
1415 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1416 | card->name, ret); | |
1417 | goto probe_aux_dev_err; | |
1418 | } | |
1419 | } | |
1420 | ||
b7af1daf MB |
1421 | /* We should have a non-codec control add function but we don't */ |
1422 | if (card->controls) | |
1423 | snd_soc_add_controls(list_first_entry(&card->codec_dev_list, | |
1424 | struct snd_soc_codec, | |
1425 | card_list), | |
1426 | card->controls, | |
1427 | card->num_controls); | |
1428 | ||
b8ad29de MB |
1429 | if (card->dapm_routes) |
1430 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1431 | card->num_dapm_routes); | |
1432 | ||
f0fba2ad | 1433 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1434 | "%s", card->name); |
22de71ba LG |
1435 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1436 | "%s", card->long_name ? card->long_name : card->name); | |
873bd4cb TI |
1437 | if (card->driver_name) |
1438 | strlcpy(card->snd_card->driver, card->driver_name, | |
1439 | sizeof(card->snd_card->driver)); | |
f0fba2ad | 1440 | |
28e9ad92 MB |
1441 | if (card->late_probe) { |
1442 | ret = card->late_probe(card); | |
1443 | if (ret < 0) { | |
1444 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1445 | card->name, ret); | |
1446 | goto probe_aux_dev_err; | |
1447 | } | |
1448 | } | |
1449 | ||
f0fba2ad LG |
1450 | ret = snd_card_register(card->snd_card); |
1451 | if (ret < 0) { | |
1452 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1453 | goto probe_aux_dev_err; |
db2a4165 FM |
1454 | } |
1455 | ||
f0fba2ad LG |
1456 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1457 | /* register any AC97 codecs */ | |
1458 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1459 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1460 | if (ret < 0) { | |
1461 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1462 | while (--i >= 0) | |
7d8316df | 1463 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1464 | goto probe_aux_dev_err; |
f0fba2ad | 1465 | } |
6b3ed785 | 1466 | } |
f0fba2ad LG |
1467 | #endif |
1468 | ||
1469 | card->instantiated = 1; | |
1470 | mutex_unlock(&card->mutex); | |
1471 | return; | |
1472 | ||
2eea392d JN |
1473 | probe_aux_dev_err: |
1474 | for (i = 0; i < card->num_aux_devs; i++) | |
1475 | soc_remove_aux_dev(card, i); | |
1476 | ||
f0fba2ad | 1477 | probe_dai_err: |
0671fd8e | 1478 | soc_remove_dai_links(card); |
f0fba2ad LG |
1479 | |
1480 | card_probe_error: | |
87506549 | 1481 | if (card->remove) |
e7361ec4 | 1482 | card->remove(card); |
f0fba2ad LG |
1483 | |
1484 | snd_card_free(card->snd_card); | |
1485 | ||
1486 | mutex_unlock(&card->mutex); | |
435c5e25 | 1487 | } |
db2a4165 | 1488 | |
435c5e25 | 1489 | /* |
421f91d2 | 1490 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1491 | * client_mutex. |
1492 | */ | |
1493 | static void snd_soc_instantiate_cards(void) | |
1494 | { | |
1495 | struct snd_soc_card *card; | |
1496 | list_for_each_entry(card, &card_list, list) | |
1497 | snd_soc_instantiate_card(card); | |
1498 | } | |
1499 | ||
1500 | /* probes a new socdev */ | |
1501 | static int soc_probe(struct platform_device *pdev) | |
1502 | { | |
f0fba2ad | 1503 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1504 | int ret = 0; |
435c5e25 | 1505 | |
70a7ca34 VK |
1506 | /* |
1507 | * no card, so machine driver should be registering card | |
1508 | * we should not be here in that case so ret error | |
1509 | */ | |
1510 | if (!card) | |
1511 | return -EINVAL; | |
1512 | ||
435c5e25 MB |
1513 | /* Bodge while we unpick instantiation */ |
1514 | card->dev = &pdev->dev; | |
f0fba2ad | 1515 | |
435c5e25 MB |
1516 | ret = snd_soc_register_card(card); |
1517 | if (ret != 0) { | |
1518 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1519 | return ret; | |
1520 | } | |
1521 | ||
1522 | return 0; | |
db2a4165 FM |
1523 | } |
1524 | ||
b0e26485 | 1525 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1526 | { |
1527 | int i; | |
db2a4165 | 1528 | |
b0e26485 VK |
1529 | /* make sure any delayed work runs */ |
1530 | for (i = 0; i < card->num_rtd; i++) { | |
1531 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1532 | flush_delayed_work_sync(&rtd->delayed_work); | |
1533 | } | |
914dc182 | 1534 | |
b0e26485 VK |
1535 | /* remove auxiliary devices */ |
1536 | for (i = 0; i < card->num_aux_devs; i++) | |
1537 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1538 | |
b0e26485 | 1539 | /* remove and free each DAI */ |
0671fd8e | 1540 | soc_remove_dai_links(card); |
2eea392d | 1541 | |
b0e26485 | 1542 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1543 | |
b0e26485 VK |
1544 | /* remove the card */ |
1545 | if (card->remove) | |
e7361ec4 | 1546 | card->remove(card); |
a6052154 | 1547 | |
0aaae527 LPC |
1548 | snd_soc_dapm_free(&card->dapm); |
1549 | ||
b0e26485 VK |
1550 | kfree(card->rtd); |
1551 | snd_card_free(card->snd_card); | |
1552 | return 0; | |
1553 | ||
1554 | } | |
1555 | ||
1556 | /* removes a socdev */ | |
1557 | static int soc_remove(struct platform_device *pdev) | |
1558 | { | |
1559 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1560 | |
c5af3a2e | 1561 | snd_soc_unregister_card(card); |
db2a4165 FM |
1562 | return 0; |
1563 | } | |
1564 | ||
6f8ab4ac | 1565 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1566 | { |
6f8ab4ac | 1567 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1568 | int i; |
51737470 MB |
1569 | |
1570 | if (!card->instantiated) | |
416356fc | 1571 | return 0; |
51737470 MB |
1572 | |
1573 | /* Flush out pmdown_time work - we actually do want to run it | |
1574 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1575 | for (i = 0; i < card->num_rtd; i++) { |
1576 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1577 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1578 | } |
51737470 | 1579 | |
f0fba2ad | 1580 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1581 | |
1582 | return 0; | |
51737470 | 1583 | } |
6f8ab4ac | 1584 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1585 | |
6f8ab4ac MB |
1586 | const struct dev_pm_ops snd_soc_pm_ops = { |
1587 | .suspend = snd_soc_suspend, | |
1588 | .resume = snd_soc_resume, | |
1589 | .poweroff = snd_soc_poweroff, | |
416356fc | 1590 | }; |
deb2607e | 1591 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1592 | |
db2a4165 FM |
1593 | /* ASoC platform driver */ |
1594 | static struct platform_driver soc_driver = { | |
1595 | .driver = { | |
1596 | .name = "soc-audio", | |
8b45a209 | 1597 | .owner = THIS_MODULE, |
6f8ab4ac | 1598 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1599 | }, |
1600 | .probe = soc_probe, | |
1601 | .remove = soc_remove, | |
db2a4165 FM |
1602 | }; |
1603 | ||
096e49d5 MB |
1604 | /** |
1605 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1606 | * | |
1607 | * @codec: CODEC to query. | |
1608 | * @reg: Register to query. | |
1609 | * | |
1610 | * Boolean function indiciating if a CODEC register is volatile. | |
1611 | */ | |
181e055e MB |
1612 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1613 | unsigned int reg) | |
096e49d5 | 1614 | { |
1500b7b5 DP |
1615 | if (codec->volatile_register) |
1616 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1617 | else |
1618 | return 0; | |
1619 | } | |
1620 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1621 | ||
239c9706 DP |
1622 | /** |
1623 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1624 | * | |
1625 | * @codec: CODEC to query. | |
1626 | * @reg: Register to query. | |
1627 | * | |
1628 | * Boolean function indicating if a CODEC register is readable. | |
1629 | */ | |
1630 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1631 | unsigned int reg) | |
1632 | { | |
1633 | if (codec->readable_register) | |
1634 | return codec->readable_register(codec, reg); | |
1635 | else | |
63fa0a28 | 1636 | return 1; |
239c9706 DP |
1637 | } |
1638 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1639 | ||
1640 | /** | |
1641 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1642 | * | |
1643 | * @codec: CODEC to query. | |
1644 | * @reg: Register to query. | |
1645 | * | |
1646 | * Boolean function indicating if a CODEC register is writable. | |
1647 | */ | |
1648 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1649 | unsigned int reg) | |
1650 | { | |
1651 | if (codec->writable_register) | |
1652 | return codec->writable_register(codec, reg); | |
1653 | else | |
63fa0a28 | 1654 | return 1; |
239c9706 DP |
1655 | } |
1656 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1657 | ||
f1442bc1 LG |
1658 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1659 | unsigned int reg) | |
1660 | { | |
1661 | unsigned int ret; | |
1662 | ||
1663 | if (!platform->driver->read) { | |
1664 | dev_err(platform->dev, "platform has no read back\n"); | |
1665 | return -1; | |
1666 | } | |
1667 | ||
1668 | ret = platform->driver->read(platform, reg); | |
1669 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1670 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1671 | |
1672 | return ret; | |
1673 | } | |
1674 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1675 | ||
1676 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1677 | unsigned int reg, unsigned int val) | |
1678 | { | |
1679 | if (!platform->driver->write) { | |
1680 | dev_err(platform->dev, "platform has no write back\n"); | |
1681 | return -1; | |
1682 | } | |
1683 | ||
1684 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1685 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1686 | return platform->driver->write(platform, reg, val); |
1687 | } | |
1688 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1689 | ||
db2a4165 FM |
1690 | /** |
1691 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1692 | * @codec: audio codec | |
1693 | * @ops: AC97 bus operations | |
1694 | * @num: AC97 codec number | |
1695 | * | |
1696 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1697 | */ | |
1698 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1699 | struct snd_ac97_bus_ops *ops, int num) | |
1700 | { | |
1701 | mutex_lock(&codec->mutex); | |
1702 | ||
1703 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1704 | if (codec->ac97 == NULL) { | |
1705 | mutex_unlock(&codec->mutex); | |
1706 | return -ENOMEM; | |
1707 | } | |
1708 | ||
1709 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1710 | if (codec->ac97->bus == NULL) { | |
1711 | kfree(codec->ac97); | |
1712 | codec->ac97 = NULL; | |
1713 | mutex_unlock(&codec->mutex); | |
1714 | return -ENOMEM; | |
1715 | } | |
1716 | ||
1717 | codec->ac97->bus->ops = ops; | |
1718 | codec->ac97->num = num; | |
0562f788 MW |
1719 | |
1720 | /* | |
1721 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1722 | * device will be registered with the device subsystem later on. | |
1723 | */ | |
1724 | codec->ac97_created = 1; | |
1725 | ||
db2a4165 FM |
1726 | mutex_unlock(&codec->mutex); |
1727 | return 0; | |
1728 | } | |
1729 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1730 | ||
1731 | /** | |
1732 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1733 | * @codec: audio codec | |
1734 | * | |
1735 | * Frees AC97 codec device resources. | |
1736 | */ | |
1737 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1738 | { | |
1739 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1740 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1741 | soc_unregister_ac97_dai_link(codec); | |
1742 | #endif | |
db2a4165 FM |
1743 | kfree(codec->ac97->bus); |
1744 | kfree(codec->ac97); | |
1745 | codec->ac97 = NULL; | |
0562f788 | 1746 | codec->ac97_created = 0; |
db2a4165 FM |
1747 | mutex_unlock(&codec->mutex); |
1748 | } | |
1749 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1750 | ||
c3753707 MB |
1751 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1752 | { | |
1753 | unsigned int ret; | |
1754 | ||
c3acec26 | 1755 | ret = codec->read(codec, reg); |
c3753707 | 1756 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1757 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1758 | |
1759 | return ret; | |
1760 | } | |
1761 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1762 | ||
1763 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1764 | unsigned int reg, unsigned int val) | |
1765 | { | |
1766 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 1767 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 1768 | return codec->write(codec, reg, val); |
c3753707 MB |
1769 | } |
1770 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1771 | ||
5fb609d4 DP |
1772 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
1773 | unsigned int reg, const void *data, size_t len) | |
1774 | { | |
1775 | return codec->bulk_write_raw(codec, reg, data, len); | |
1776 | } | |
1777 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
1778 | ||
db2a4165 FM |
1779 | /** |
1780 | * snd_soc_update_bits - update codec register bits | |
1781 | * @codec: audio codec | |
1782 | * @reg: codec register | |
1783 | * @mask: register mask | |
1784 | * @value: new value | |
1785 | * | |
1786 | * Writes new register value. | |
1787 | * | |
180c329d | 1788 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
1789 | */ |
1790 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1791 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1792 | { |
1793 | int change; | |
46f5822f | 1794 | unsigned int old, new; |
180c329d TT |
1795 | int ret; |
1796 | ||
1797 | ret = snd_soc_read(codec, reg); | |
1798 | if (ret < 0) | |
1799 | return ret; | |
db2a4165 | 1800 | |
180c329d | 1801 | old = ret; |
78bf3c9a | 1802 | new = (old & ~mask) | (value & mask); |
db2a4165 | 1803 | change = old != new; |
180c329d TT |
1804 | if (change) { |
1805 | ret = snd_soc_write(codec, reg, new); | |
1806 | if (ret < 0) | |
1807 | return ret; | |
1808 | } | |
db2a4165 | 1809 | |
db2a4165 FM |
1810 | return change; |
1811 | } | |
1812 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1813 | ||
6c508c62 EN |
1814 | /** |
1815 | * snd_soc_update_bits_locked - update codec register bits | |
1816 | * @codec: audio codec | |
1817 | * @reg: codec register | |
1818 | * @mask: register mask | |
1819 | * @value: new value | |
1820 | * | |
1821 | * Writes new register value, and takes the codec mutex. | |
1822 | * | |
1823 | * Returns 1 for change else 0. | |
1824 | */ | |
dd1b3d53 MB |
1825 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1826 | unsigned short reg, unsigned int mask, | |
1827 | unsigned int value) | |
6c508c62 EN |
1828 | { |
1829 | int change; | |
1830 | ||
1831 | mutex_lock(&codec->mutex); | |
1832 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1833 | mutex_unlock(&codec->mutex); | |
1834 | ||
1835 | return change; | |
1836 | } | |
dd1b3d53 | 1837 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1838 | |
db2a4165 FM |
1839 | /** |
1840 | * snd_soc_test_bits - test register for change | |
1841 | * @codec: audio codec | |
1842 | * @reg: codec register | |
1843 | * @mask: register mask | |
1844 | * @value: new value | |
1845 | * | |
1846 | * Tests a register with a new value and checks if the new value is | |
1847 | * different from the old value. | |
1848 | * | |
1849 | * Returns 1 for change else 0. | |
1850 | */ | |
1851 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1852 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1853 | { |
1854 | int change; | |
46f5822f | 1855 | unsigned int old, new; |
db2a4165 | 1856 | |
db2a4165 FM |
1857 | old = snd_soc_read(codec, reg); |
1858 | new = (old & ~mask) | value; | |
1859 | change = old != new; | |
db2a4165 FM |
1860 | |
1861 | return change; | |
1862 | } | |
1863 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1864 | ||
db2a4165 FM |
1865 | /** |
1866 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1867 | * @substream: the pcm substream | |
1868 | * @hw: the hardware parameters | |
1869 | * | |
1870 | * Sets the substream runtime hardware parameters. | |
1871 | */ | |
1872 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1873 | const struct snd_pcm_hardware *hw) | |
1874 | { | |
1875 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1876 | runtime->hw.info = hw->info; | |
1877 | runtime->hw.formats = hw->formats; | |
1878 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1879 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1880 | runtime->hw.periods_min = hw->periods_min; | |
1881 | runtime->hw.periods_max = hw->periods_max; | |
1882 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1883 | runtime->hw.fifo_size = hw->fifo_size; | |
1884 | return 0; | |
1885 | } | |
1886 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1887 | ||
1888 | /** | |
1889 | * snd_soc_cnew - create new control | |
1890 | * @_template: control template | |
1891 | * @data: control private data | |
ac11a2b3 | 1892 | * @long_name: control long name |
efb7ac3f | 1893 | * @prefix: control name prefix |
db2a4165 FM |
1894 | * |
1895 | * Create a new mixer control from a template control. | |
1896 | * | |
1897 | * Returns 0 for success, else error. | |
1898 | */ | |
1899 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
1900 | void *data, char *long_name, |
1901 | const char *prefix) | |
db2a4165 FM |
1902 | { |
1903 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1904 | struct snd_kcontrol *kcontrol; |
1905 | char *name = NULL; | |
1906 | int name_len; | |
db2a4165 FM |
1907 | |
1908 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1909 | template.index = 0; |
1910 | ||
efb7ac3f MB |
1911 | if (!long_name) |
1912 | long_name = template.name; | |
1913 | ||
1914 | if (prefix) { | |
1915 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 1916 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
1917 | if (!name) |
1918 | return NULL; | |
1919 | ||
1920 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
1921 | ||
1922 | template.name = name; | |
1923 | } else { | |
1924 | template.name = long_name; | |
1925 | } | |
1926 | ||
1927 | kcontrol = snd_ctl_new1(&template, data); | |
1928 | ||
1929 | kfree(name); | |
1930 | ||
1931 | return kcontrol; | |
db2a4165 FM |
1932 | } |
1933 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1934 | ||
3e8e1952 IM |
1935 | /** |
1936 | * snd_soc_add_controls - add an array of controls to a codec. | |
1937 | * Convienience function to add a list of controls. Many codecs were | |
1938 | * duplicating this code. | |
1939 | * | |
1940 | * @codec: codec to add controls to | |
1941 | * @controls: array of controls to add | |
1942 | * @num_controls: number of elements in the array | |
1943 | * | |
1944 | * Return 0 for success, else error. | |
1945 | */ | |
1946 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1947 | const struct snd_kcontrol_new *controls, int num_controls) | |
1948 | { | |
f0fba2ad | 1949 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
1950 | int err, i; |
1951 | ||
1952 | for (i = 0; i < num_controls; i++) { | |
1953 | const struct snd_kcontrol_new *control = &controls[i]; | |
efb7ac3f MB |
1954 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, |
1955 | control->name, | |
1956 | codec->name_prefix)); | |
3e8e1952 | 1957 | if (err < 0) { |
082100dc | 1958 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
efb7ac3f | 1959 | codec->name, control->name, err); |
3e8e1952 IM |
1960 | return err; |
1961 | } | |
1962 | } | |
1963 | ||
1964 | return 0; | |
1965 | } | |
1966 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
1967 | ||
a491a5c8 LG |
1968 | /** |
1969 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
1970 | * Convienience function to add a list of controls. | |
1971 | * | |
1972 | * @platform: platform to add controls to | |
1973 | * @controls: array of controls to add | |
1974 | * @num_controls: number of elements in the array | |
1975 | * | |
1976 | * Return 0 for success, else error. | |
1977 | */ | |
1978 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
1979 | const struct snd_kcontrol_new *controls, int num_controls) | |
1980 | { | |
1981 | struct snd_card *card = platform->card->snd_card; | |
1982 | int err, i; | |
1983 | ||
1984 | for (i = 0; i < num_controls; i++) { | |
1985 | const struct snd_kcontrol_new *control = &controls[i]; | |
1986 | err = snd_ctl_add(card, snd_soc_cnew(control, platform, | |
1987 | control->name, NULL)); | |
1988 | if (err < 0) { | |
1989 | dev_err(platform->dev, "Failed to add %s %d\n",control->name, err); | |
1990 | return err; | |
1991 | } | |
1992 | } | |
1993 | ||
1994 | return 0; | |
1995 | } | |
1996 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
1997 | ||
db2a4165 FM |
1998 | /** |
1999 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2000 | * @kcontrol: mixer control | |
2001 | * @uinfo: control element information | |
2002 | * | |
2003 | * Callback to provide information about a double enumerated | |
2004 | * mixer control. | |
2005 | * | |
2006 | * Returns 0 for success. | |
2007 | */ | |
2008 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2009 | struct snd_ctl_elem_info *uinfo) | |
2010 | { | |
2011 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2012 | ||
2013 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2014 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2015 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2016 | |
f8ba0b7b JS |
2017 | if (uinfo->value.enumerated.item > e->max - 1) |
2018 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2019 | strcpy(uinfo->value.enumerated.name, |
2020 | e->texts[uinfo->value.enumerated.item]); | |
2021 | return 0; | |
2022 | } | |
2023 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2024 | ||
2025 | /** | |
2026 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2027 | * @kcontrol: mixer control | |
ac11a2b3 | 2028 | * @ucontrol: control element information |
db2a4165 FM |
2029 | * |
2030 | * Callback to get the value of a double enumerated mixer. | |
2031 | * | |
2032 | * Returns 0 for success. | |
2033 | */ | |
2034 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2035 | struct snd_ctl_elem_value *ucontrol) | |
2036 | { | |
2037 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2038 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2039 | unsigned int val, bitmask; |
db2a4165 | 2040 | |
f8ba0b7b | 2041 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2042 | ; |
2043 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2044 | ucontrol->value.enumerated.item[0] |
2045 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2046 | if (e->shift_l != e->shift_r) |
2047 | ucontrol->value.enumerated.item[1] = | |
2048 | (val >> e->shift_r) & (bitmask - 1); | |
2049 | ||
2050 | return 0; | |
2051 | } | |
2052 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2053 | ||
2054 | /** | |
2055 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2056 | * @kcontrol: mixer control | |
ac11a2b3 | 2057 | * @ucontrol: control element information |
db2a4165 FM |
2058 | * |
2059 | * Callback to set the value of a double enumerated mixer. | |
2060 | * | |
2061 | * Returns 0 for success. | |
2062 | */ | |
2063 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2064 | struct snd_ctl_elem_value *ucontrol) | |
2065 | { | |
2066 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2067 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2068 | unsigned int val; |
2069 | unsigned int mask, bitmask; | |
db2a4165 | 2070 | |
f8ba0b7b | 2071 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2072 | ; |
f8ba0b7b | 2073 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2074 | return -EINVAL; |
2075 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2076 | mask = (bitmask - 1) << e->shift_l; | |
2077 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2078 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2079 | return -EINVAL; |
2080 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2081 | mask |= (bitmask - 1) << e->shift_r; | |
2082 | } | |
2083 | ||
6c508c62 | 2084 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2085 | } |
2086 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2087 | ||
2e72f8e3 PU |
2088 | /** |
2089 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2090 | * @kcontrol: mixer control | |
2091 | * @ucontrol: control element information | |
2092 | * | |
2093 | * Callback to get the value of a double semi enumerated mixer. | |
2094 | * | |
2095 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2096 | * used for handling bitfield coded enumeration for example. | |
2097 | * | |
2098 | * Returns 0 for success. | |
2099 | */ | |
2100 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2101 | struct snd_ctl_elem_value *ucontrol) | |
2102 | { | |
2103 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2104 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2105 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2106 | |
2107 | reg_val = snd_soc_read(codec, e->reg); | |
2108 | val = (reg_val >> e->shift_l) & e->mask; | |
2109 | for (mux = 0; mux < e->max; mux++) { | |
2110 | if (val == e->values[mux]) | |
2111 | break; | |
2112 | } | |
2113 | ucontrol->value.enumerated.item[0] = mux; | |
2114 | if (e->shift_l != e->shift_r) { | |
2115 | val = (reg_val >> e->shift_r) & e->mask; | |
2116 | for (mux = 0; mux < e->max; mux++) { | |
2117 | if (val == e->values[mux]) | |
2118 | break; | |
2119 | } | |
2120 | ucontrol->value.enumerated.item[1] = mux; | |
2121 | } | |
2122 | ||
2123 | return 0; | |
2124 | } | |
2125 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2126 | ||
2127 | /** | |
2128 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2129 | * @kcontrol: mixer control | |
2130 | * @ucontrol: control element information | |
2131 | * | |
2132 | * Callback to set the value of a double semi enumerated mixer. | |
2133 | * | |
2134 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2135 | * used for handling bitfield coded enumeration for example. | |
2136 | * | |
2137 | * Returns 0 for success. | |
2138 | */ | |
2139 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2140 | struct snd_ctl_elem_value *ucontrol) | |
2141 | { | |
2142 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2143 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2144 | unsigned int val; |
2145 | unsigned int mask; | |
2e72f8e3 PU |
2146 | |
2147 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2148 | return -EINVAL; | |
2149 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2150 | mask = e->mask << e->shift_l; | |
2151 | if (e->shift_l != e->shift_r) { | |
2152 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2153 | return -EINVAL; | |
2154 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2155 | mask |= e->mask << e->shift_r; | |
2156 | } | |
2157 | ||
6c508c62 | 2158 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2159 | } |
2160 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2161 | ||
db2a4165 FM |
2162 | /** |
2163 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2164 | * @kcontrol: mixer control | |
2165 | * @uinfo: control element information | |
2166 | * | |
2167 | * Callback to provide information about an external enumerated | |
2168 | * single mixer. | |
2169 | * | |
2170 | * Returns 0 for success. | |
2171 | */ | |
2172 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2173 | struct snd_ctl_elem_info *uinfo) | |
2174 | { | |
2175 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2176 | ||
2177 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2178 | uinfo->count = 1; | |
f8ba0b7b | 2179 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2180 | |
f8ba0b7b JS |
2181 | if (uinfo->value.enumerated.item > e->max - 1) |
2182 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2183 | strcpy(uinfo->value.enumerated.name, |
2184 | e->texts[uinfo->value.enumerated.item]); | |
2185 | return 0; | |
2186 | } | |
2187 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2188 | ||
2189 | /** | |
2190 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2191 | * @kcontrol: mixer control | |
2192 | * @uinfo: control element information | |
2193 | * | |
2194 | * Callback to provide information about a single external mixer control. | |
2195 | * | |
2196 | * Returns 0 for success. | |
2197 | */ | |
2198 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2199 | struct snd_ctl_elem_info *uinfo) | |
2200 | { | |
a7a4ac86 PZ |
2201 | int max = kcontrol->private_value; |
2202 | ||
fd5dfad9 | 2203 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2204 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2205 | else | |
2206 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2207 | |
db2a4165 FM |
2208 | uinfo->count = 1; |
2209 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2210 | uinfo->value.integer.max = max; |
db2a4165 FM |
2211 | return 0; |
2212 | } | |
2213 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2214 | ||
db2a4165 FM |
2215 | /** |
2216 | * snd_soc_info_volsw - single mixer info callback | |
2217 | * @kcontrol: mixer control | |
2218 | * @uinfo: control element information | |
2219 | * | |
2220 | * Callback to provide information about a single mixer control. | |
2221 | * | |
2222 | * Returns 0 for success. | |
2223 | */ | |
2224 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2225 | struct snd_ctl_elem_info *uinfo) | |
2226 | { | |
4eaa9819 JS |
2227 | struct soc_mixer_control *mc = |
2228 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2229 | int platform_max; |
762b8df7 | 2230 | unsigned int shift = mc->shift; |
815ecf8d | 2231 | unsigned int rshift = mc->rshift; |
db2a4165 | 2232 | |
d11bb4a9 PU |
2233 | if (!mc->platform_max) |
2234 | mc->platform_max = mc->max; | |
2235 | platform_max = mc->platform_max; | |
2236 | ||
2237 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2238 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2239 | else | |
2240 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2241 | ||
db2a4165 FM |
2242 | uinfo->count = shift == rshift ? 1 : 2; |
2243 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2244 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2245 | return 0; |
2246 | } | |
2247 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2248 | ||
2249 | /** | |
2250 | * snd_soc_get_volsw - single mixer get callback | |
2251 | * @kcontrol: mixer control | |
ac11a2b3 | 2252 | * @ucontrol: control element information |
db2a4165 FM |
2253 | * |
2254 | * Callback to get the value of a single mixer control. | |
2255 | * | |
2256 | * Returns 0 for success. | |
2257 | */ | |
2258 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2259 | struct snd_ctl_elem_value *ucontrol) | |
2260 | { | |
4eaa9819 JS |
2261 | struct soc_mixer_control *mc = |
2262 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2263 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2264 | unsigned int reg = mc->reg; |
2265 | unsigned int shift = mc->shift; | |
2266 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2267 | int max = mc->max; |
815ecf8d JS |
2268 | unsigned int mask = (1 << fls(max)) - 1; |
2269 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2270 | |
2271 | ucontrol->value.integer.value[0] = | |
2272 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2273 | if (shift != rshift) | |
2274 | ucontrol->value.integer.value[1] = | |
2275 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2276 | if (invert) { | |
2277 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2278 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2279 | if (shift != rshift) |
2280 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2281 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2282 | } |
2283 | ||
2284 | return 0; | |
2285 | } | |
2286 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2287 | ||
2288 | /** | |
2289 | * snd_soc_put_volsw - single mixer put callback | |
2290 | * @kcontrol: mixer control | |
ac11a2b3 | 2291 | * @ucontrol: control element information |
db2a4165 FM |
2292 | * |
2293 | * Callback to set the value of a single mixer control. | |
2294 | * | |
2295 | * Returns 0 for success. | |
2296 | */ | |
2297 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2298 | struct snd_ctl_elem_value *ucontrol) | |
2299 | { | |
4eaa9819 JS |
2300 | struct soc_mixer_control *mc = |
2301 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2302 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2303 | unsigned int reg = mc->reg; |
2304 | unsigned int shift = mc->shift; | |
2305 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2306 | int max = mc->max; |
815ecf8d JS |
2307 | unsigned int mask = (1 << fls(max)) - 1; |
2308 | unsigned int invert = mc->invert; | |
46f5822f | 2309 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2310 | |
2311 | val = (ucontrol->value.integer.value[0] & mask); | |
2312 | if (invert) | |
a7a4ac86 | 2313 | val = max - val; |
db2a4165 FM |
2314 | val_mask = mask << shift; |
2315 | val = val << shift; | |
2316 | if (shift != rshift) { | |
2317 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2318 | if (invert) | |
a7a4ac86 | 2319 | val2 = max - val2; |
db2a4165 FM |
2320 | val_mask |= mask << rshift; |
2321 | val |= val2 << rshift; | |
2322 | } | |
6c508c62 | 2323 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2324 | } |
2325 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2326 | ||
2327 | /** | |
2328 | * snd_soc_info_volsw_2r - double mixer info callback | |
2329 | * @kcontrol: mixer control | |
2330 | * @uinfo: control element information | |
2331 | * | |
2332 | * Callback to provide information about a double mixer control that | |
2333 | * spans 2 codec registers. | |
2334 | * | |
2335 | * Returns 0 for success. | |
2336 | */ | |
2337 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2338 | struct snd_ctl_elem_info *uinfo) | |
2339 | { | |
4eaa9819 JS |
2340 | struct soc_mixer_control *mc = |
2341 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2342 | int platform_max; |
a7a4ac86 | 2343 | |
d11bb4a9 PU |
2344 | if (!mc->platform_max) |
2345 | mc->platform_max = mc->max; | |
2346 | platform_max = mc->platform_max; | |
2347 | ||
2348 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2349 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2350 | else | |
2351 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2352 | |
db2a4165 FM |
2353 | uinfo->count = 2; |
2354 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2355 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2356 | return 0; |
2357 | } | |
2358 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2359 | ||
2360 | /** | |
2361 | * snd_soc_get_volsw_2r - double mixer get callback | |
2362 | * @kcontrol: mixer control | |
ac11a2b3 | 2363 | * @ucontrol: control element information |
db2a4165 FM |
2364 | * |
2365 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2366 | * | |
2367 | * Returns 0 for success. | |
2368 | */ | |
2369 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2370 | struct snd_ctl_elem_value *ucontrol) | |
2371 | { | |
4eaa9819 JS |
2372 | struct soc_mixer_control *mc = |
2373 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2374 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2375 | unsigned int reg = mc->reg; |
2376 | unsigned int reg2 = mc->rreg; | |
2377 | unsigned int shift = mc->shift; | |
4eaa9819 | 2378 | int max = mc->max; |
46f5822f | 2379 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2380 | unsigned int invert = mc->invert; |
db2a4165 FM |
2381 | |
2382 | ucontrol->value.integer.value[0] = | |
2383 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2384 | ucontrol->value.integer.value[1] = | |
2385 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2386 | if (invert) { | |
2387 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2388 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2389 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2390 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2391 | } |
2392 | ||
2393 | return 0; | |
2394 | } | |
2395 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2396 | ||
2397 | /** | |
2398 | * snd_soc_put_volsw_2r - double mixer set callback | |
2399 | * @kcontrol: mixer control | |
ac11a2b3 | 2400 | * @ucontrol: control element information |
db2a4165 FM |
2401 | * |
2402 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2403 | * | |
2404 | * Returns 0 for success. | |
2405 | */ | |
2406 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2407 | struct snd_ctl_elem_value *ucontrol) | |
2408 | { | |
4eaa9819 JS |
2409 | struct soc_mixer_control *mc = |
2410 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2411 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2412 | unsigned int reg = mc->reg; |
2413 | unsigned int reg2 = mc->rreg; | |
2414 | unsigned int shift = mc->shift; | |
4eaa9819 | 2415 | int max = mc->max; |
815ecf8d JS |
2416 | unsigned int mask = (1 << fls(max)) - 1; |
2417 | unsigned int invert = mc->invert; | |
db2a4165 | 2418 | int err; |
46f5822f | 2419 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2420 | |
2421 | val_mask = mask << shift; | |
2422 | val = (ucontrol->value.integer.value[0] & mask); | |
2423 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2424 | ||
2425 | if (invert) { | |
a7a4ac86 PZ |
2426 | val = max - val; |
2427 | val2 = max - val2; | |
db2a4165 FM |
2428 | } |
2429 | ||
2430 | val = val << shift; | |
2431 | val2 = val2 << shift; | |
2432 | ||
6c508c62 | 2433 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2434 | if (err < 0) |
db2a4165 FM |
2435 | return err; |
2436 | ||
6c508c62 | 2437 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2438 | return err; |
2439 | } | |
2440 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2441 | ||
e13ac2e9 MB |
2442 | /** |
2443 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2444 | * @kcontrol: mixer control | |
2445 | * @uinfo: control element information | |
2446 | * | |
2447 | * Callback to provide information about a signed mixer control. | |
2448 | * | |
2449 | * Returns 0 for success. | |
2450 | */ | |
2451 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2452 | struct snd_ctl_elem_info *uinfo) | |
2453 | { | |
4eaa9819 JS |
2454 | struct soc_mixer_control *mc = |
2455 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2456 | int platform_max; |
4eaa9819 | 2457 | int min = mc->min; |
e13ac2e9 | 2458 | |
d11bb4a9 PU |
2459 | if (!mc->platform_max) |
2460 | mc->platform_max = mc->max; | |
2461 | platform_max = mc->platform_max; | |
2462 | ||
e13ac2e9 MB |
2463 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2464 | uinfo->count = 2; | |
2465 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2466 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2467 | return 0; |
2468 | } | |
2469 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2470 | ||
2471 | /** | |
2472 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2473 | * @kcontrol: mixer control | |
ac11a2b3 | 2474 | * @ucontrol: control element information |
e13ac2e9 MB |
2475 | * |
2476 | * Callback to get the value of a signed mixer control. | |
2477 | * | |
2478 | * Returns 0 for success. | |
2479 | */ | |
2480 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2481 | struct snd_ctl_elem_value *ucontrol) | |
2482 | { | |
4eaa9819 JS |
2483 | struct soc_mixer_control *mc = |
2484 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2485 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2486 | unsigned int reg = mc->reg; |
4eaa9819 | 2487 | int min = mc->min; |
e13ac2e9 MB |
2488 | int val = snd_soc_read(codec, reg); |
2489 | ||
2490 | ucontrol->value.integer.value[0] = | |
2491 | ((signed char)(val & 0xff))-min; | |
2492 | ucontrol->value.integer.value[1] = | |
2493 | ((signed char)((val >> 8) & 0xff))-min; | |
2494 | return 0; | |
2495 | } | |
2496 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2497 | ||
2498 | /** | |
2499 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2500 | * @kcontrol: mixer control | |
ac11a2b3 | 2501 | * @ucontrol: control element information |
e13ac2e9 MB |
2502 | * |
2503 | * Callback to set the value of a signed mixer control. | |
2504 | * | |
2505 | * Returns 0 for success. | |
2506 | */ | |
2507 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2508 | struct snd_ctl_elem_value *ucontrol) | |
2509 | { | |
4eaa9819 JS |
2510 | struct soc_mixer_control *mc = |
2511 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2512 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2513 | unsigned int reg = mc->reg; |
4eaa9819 | 2514 | int min = mc->min; |
46f5822f | 2515 | unsigned int val; |
e13ac2e9 MB |
2516 | |
2517 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2518 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2519 | ||
6c508c62 | 2520 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2521 | } |
2522 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2523 | ||
637d3847 PU |
2524 | /** |
2525 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2526 | * | |
2527 | * @codec: where to look for the control | |
2528 | * @name: Name of the control | |
2529 | * @max: new maximum limit | |
2530 | * | |
2531 | * Return 0 for success, else error. | |
2532 | */ | |
2533 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2534 | const char *name, int max) | |
2535 | { | |
f0fba2ad | 2536 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2537 | struct snd_kcontrol *kctl; |
2538 | struct soc_mixer_control *mc; | |
2539 | int found = 0; | |
2540 | int ret = -EINVAL; | |
2541 | ||
2542 | /* Sanity check for name and max */ | |
2543 | if (unlikely(!name || max <= 0)) | |
2544 | return -EINVAL; | |
2545 | ||
2546 | list_for_each_entry(kctl, &card->controls, list) { | |
2547 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2548 | found = 1; | |
2549 | break; | |
2550 | } | |
2551 | } | |
2552 | if (found) { | |
2553 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2554 | if (max <= mc->max) { | |
d11bb4a9 | 2555 | mc->platform_max = max; |
637d3847 PU |
2556 | ret = 0; |
2557 | } | |
2558 | } | |
2559 | return ret; | |
2560 | } | |
2561 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2562 | ||
b6f4bb38 | 2563 | /** |
2564 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2565 | * mixer info callback | |
2566 | * @kcontrol: mixer control | |
2567 | * @uinfo: control element information | |
2568 | * | |
2569 | * Returns 0 for success. | |
2570 | */ | |
2571 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2572 | struct snd_ctl_elem_info *uinfo) | |
2573 | { | |
2574 | struct soc_mixer_control *mc = | |
2575 | (struct soc_mixer_control *)kcontrol->private_value; | |
2576 | int max = mc->max; | |
2577 | int min = mc->min; | |
2578 | ||
2579 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2580 | uinfo->count = 2; | |
2581 | uinfo->value.integer.min = 0; | |
2582 | uinfo->value.integer.max = max-min; | |
2583 | ||
2584 | return 0; | |
2585 | } | |
2586 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2587 | ||
2588 | /** | |
2589 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2590 | * mixer get callback | |
2591 | * @kcontrol: mixer control | |
2592 | * @uinfo: control element information | |
2593 | * | |
2594 | * Returns 0 for success. | |
2595 | */ | |
2596 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2597 | struct snd_ctl_elem_value *ucontrol) | |
2598 | { | |
2599 | struct soc_mixer_control *mc = | |
2600 | (struct soc_mixer_control *)kcontrol->private_value; | |
2601 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2602 | unsigned int mask = (1<<mc->shift)-1; | |
2603 | int min = mc->min; | |
2604 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2605 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2606 | ||
20630c7f SL |
2607 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2608 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2609 | return 0; |
2610 | } | |
2611 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2612 | ||
2613 | /** | |
2614 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2615 | * mixer put callback | |
2616 | * @kcontrol: mixer control | |
2617 | * @uinfo: control element information | |
2618 | * | |
2619 | * Returns 0 for success. | |
2620 | */ | |
2621 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2622 | struct snd_ctl_elem_value *ucontrol) | |
2623 | { | |
2624 | struct soc_mixer_control *mc = | |
2625 | (struct soc_mixer_control *)kcontrol->private_value; | |
2626 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2627 | unsigned int mask = (1<<mc->shift)-1; | |
2628 | int min = mc->min; | |
2629 | int ret; | |
2630 | unsigned int val, valr, oval, ovalr; | |
2631 | ||
2632 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2633 | val &= mask; | |
2634 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2635 | valr &= mask; | |
2636 | ||
2637 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2638 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2639 | ||
2640 | ret = 0; | |
2641 | if (oval != val) { | |
2642 | ret = snd_soc_write(codec, mc->reg, val); | |
2643 | if (ret < 0) | |
f1df5aec | 2644 | return ret; |
b6f4bb38 | 2645 | } |
2646 | if (ovalr != valr) { | |
2647 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2648 | if (ret < 0) | |
f1df5aec | 2649 | return ret; |
b6f4bb38 | 2650 | } |
2651 | ||
2652 | return 0; | |
2653 | } | |
2654 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2655 | ||
8c6529db LG |
2656 | /** |
2657 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2658 | * @dai: DAI | |
2659 | * @clk_id: DAI specific clock ID | |
2660 | * @freq: new clock frequency in Hz | |
2661 | * @dir: new clock direction - input/output. | |
2662 | * | |
2663 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2664 | */ | |
2665 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2666 | unsigned int freq, int dir) | |
2667 | { | |
f0fba2ad LG |
2668 | if (dai->driver && dai->driver->ops->set_sysclk) |
2669 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a MB |
2670 | else if (dai->codec && dai->codec->driver->set_sysclk) |
2671 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, | |
2672 | freq, dir); | |
8c6529db LG |
2673 | else |
2674 | return -EINVAL; | |
2675 | } | |
2676 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2677 | ||
ec4ee52a MB |
2678 | /** |
2679 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2680 | * @codec: CODEC | |
2681 | * @clk_id: DAI specific clock ID | |
2682 | * @freq: new clock frequency in Hz | |
2683 | * @dir: new clock direction - input/output. | |
2684 | * | |
2685 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2686 | */ | |
2687 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
2688 | unsigned int freq, int dir) | |
2689 | { | |
2690 | if (codec->driver->set_sysclk) | |
2691 | return codec->driver->set_sysclk(codec, clk_id, freq, dir); | |
2692 | else | |
2693 | return -EINVAL; | |
2694 | } | |
2695 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2696 | ||
8c6529db LG |
2697 | /** |
2698 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2699 | * @dai: DAI | |
ac11a2b3 | 2700 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2701 | * @div: new clock divisor. |
2702 | * | |
2703 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2704 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2705 | * and frame clocks as low as possible to save system power. | |
2706 | */ | |
2707 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2708 | int div_id, int div) | |
2709 | { | |
f0fba2ad LG |
2710 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2711 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2712 | else |
2713 | return -EINVAL; | |
2714 | } | |
2715 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2716 | ||
2717 | /** | |
2718 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2719 | * @dai: DAI | |
2720 | * @pll_id: DAI specific PLL ID | |
85488037 | 2721 | * @source: DAI specific source for the PLL |
8c6529db LG |
2722 | * @freq_in: PLL input clock frequency in Hz |
2723 | * @freq_out: requested PLL output clock frequency in Hz | |
2724 | * | |
2725 | * Configures and enables PLL to generate output clock based on input clock. | |
2726 | */ | |
85488037 MB |
2727 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2728 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2729 | { |
f0fba2ad LG |
2730 | if (dai->driver && dai->driver->ops->set_pll) |
2731 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2732 | freq_in, freq_out); |
ec4ee52a MB |
2733 | else if (dai->codec && dai->codec->driver->set_pll) |
2734 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2735 | freq_in, freq_out); | |
8c6529db LG |
2736 | else |
2737 | return -EINVAL; | |
2738 | } | |
2739 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2740 | ||
ec4ee52a MB |
2741 | /* |
2742 | * snd_soc_codec_set_pll - configure codec PLL. | |
2743 | * @codec: CODEC | |
2744 | * @pll_id: DAI specific PLL ID | |
2745 | * @source: DAI specific source for the PLL | |
2746 | * @freq_in: PLL input clock frequency in Hz | |
2747 | * @freq_out: requested PLL output clock frequency in Hz | |
2748 | * | |
2749 | * Configures and enables PLL to generate output clock based on input clock. | |
2750 | */ | |
2751 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2752 | unsigned int freq_in, unsigned int freq_out) | |
2753 | { | |
2754 | if (codec->driver->set_pll) | |
2755 | return codec->driver->set_pll(codec, pll_id, source, | |
2756 | freq_in, freq_out); | |
2757 | else | |
2758 | return -EINVAL; | |
2759 | } | |
2760 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2761 | ||
8c6529db LG |
2762 | /** |
2763 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2764 | * @dai: DAI | |
8c6529db LG |
2765 | * @fmt: SND_SOC_DAIFMT_ format value. |
2766 | * | |
2767 | * Configures the DAI hardware format and clocking. | |
2768 | */ | |
2769 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2770 | { | |
f0fba2ad LG |
2771 | if (dai->driver && dai->driver->ops->set_fmt) |
2772 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2773 | else |
2774 | return -EINVAL; | |
2775 | } | |
2776 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2777 | ||
2778 | /** | |
2779 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2780 | * @dai: DAI | |
a5479e38 DR |
2781 | * @tx_mask: bitmask representing active TX slots. |
2782 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2783 | * @slots: Number of slots in use. |
a5479e38 | 2784 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2785 | * |
2786 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2787 | * specific. | |
2788 | */ | |
2789 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2790 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2791 | { |
f0fba2ad LG |
2792 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2793 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2794 | slots, slot_width); |
8c6529db LG |
2795 | else |
2796 | return -EINVAL; | |
2797 | } | |
2798 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2799 | ||
472df3cb BS |
2800 | /** |
2801 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2802 | * @dai: DAI | |
2803 | * @tx_num: how many TX channels | |
2804 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2805 | * 0~num-1 uses | |
2806 | * @rx_num: how many RX channels | |
2807 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2808 | * 0~num-1 uses | |
2809 | * | |
2810 | * configure the relationship between channel number and TDM slot number. | |
2811 | */ | |
2812 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2813 | unsigned int tx_num, unsigned int *tx_slot, | |
2814 | unsigned int rx_num, unsigned int *rx_slot) | |
2815 | { | |
f0fba2ad LG |
2816 | if (dai->driver && dai->driver->ops->set_channel_map) |
2817 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2818 | rx_num, rx_slot); |
2819 | else | |
2820 | return -EINVAL; | |
2821 | } | |
2822 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2823 | ||
8c6529db LG |
2824 | /** |
2825 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2826 | * @dai: DAI | |
2827 | * @tristate: tristate enable | |
2828 | * | |
2829 | * Tristates the DAI so that others can use it. | |
2830 | */ | |
2831 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2832 | { | |
f0fba2ad LG |
2833 | if (dai->driver && dai->driver->ops->set_tristate) |
2834 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2835 | else |
2836 | return -EINVAL; | |
2837 | } | |
2838 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2839 | ||
2840 | /** | |
2841 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2842 | * @dai: DAI | |
2843 | * @mute: mute enable | |
2844 | * | |
2845 | * Mutes the DAI DAC. | |
2846 | */ | |
2847 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2848 | { | |
f0fba2ad LG |
2849 | if (dai->driver && dai->driver->ops->digital_mute) |
2850 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2851 | else |
2852 | return -EINVAL; | |
2853 | } | |
2854 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2855 | ||
c5af3a2e MB |
2856 | /** |
2857 | * snd_soc_register_card - Register a card with the ASoC core | |
2858 | * | |
ac11a2b3 | 2859 | * @card: Card to register |
c5af3a2e | 2860 | * |
c5af3a2e | 2861 | */ |
70a7ca34 | 2862 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2863 | { |
f0fba2ad LG |
2864 | int i; |
2865 | ||
c5af3a2e MB |
2866 | if (!card->name || !card->dev) |
2867 | return -EINVAL; | |
2868 | ||
ed77cc12 MB |
2869 | dev_set_drvdata(card->dev, card); |
2870 | ||
111c6419 SW |
2871 | snd_soc_initialize_card_lists(card); |
2872 | ||
150dd2f8 VK |
2873 | soc_init_card_debugfs(card); |
2874 | ||
2eea392d JN |
2875 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
2876 | (card->num_links + card->num_aux_devs), | |
2877 | GFP_KERNEL); | |
f0fba2ad LG |
2878 | if (card->rtd == NULL) |
2879 | return -ENOMEM; | |
2eea392d | 2880 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
2881 | |
2882 | for (i = 0; i < card->num_links; i++) | |
2883 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2884 | ||
c5af3a2e MB |
2885 | INIT_LIST_HEAD(&card->list); |
2886 | card->instantiated = 0; | |
f0fba2ad | 2887 | mutex_init(&card->mutex); |
c5af3a2e MB |
2888 | |
2889 | mutex_lock(&client_mutex); | |
2890 | list_add(&card->list, &card_list); | |
435c5e25 | 2891 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2892 | mutex_unlock(&client_mutex); |
2893 | ||
2894 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2895 | ||
2896 | return 0; | |
2897 | } | |
70a7ca34 | 2898 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2899 | |
2900 | /** | |
2901 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2902 | * | |
ac11a2b3 | 2903 | * @card: Card to unregister |
c5af3a2e | 2904 | * |
c5af3a2e | 2905 | */ |
70a7ca34 | 2906 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2907 | { |
b0e26485 VK |
2908 | if (card->instantiated) |
2909 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
2910 | mutex_lock(&client_mutex); |
2911 | list_del(&card->list); | |
2912 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2913 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2914 | ||
2915 | return 0; | |
2916 | } | |
70a7ca34 | 2917 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2918 | |
f0fba2ad LG |
2919 | /* |
2920 | * Simplify DAI link configuration by removing ".-1" from device names | |
2921 | * and sanitizing names. | |
2922 | */ | |
0b9a214a | 2923 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2924 | { |
2925 | char *found, name[NAME_SIZE]; | |
2926 | int id1, id2; | |
2927 | ||
2928 | if (dev_name(dev) == NULL) | |
2929 | return NULL; | |
2930 | ||
58818a77 | 2931 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2932 | |
2933 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2934 | found = strstr(name, dev->driver->name); | |
2935 | if (found) { | |
2936 | /* get ID */ | |
2937 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2938 | ||
2939 | /* discard ID from name if ID == -1 */ | |
2940 | if (*id == -1) | |
2941 | found[strlen(dev->driver->name)] = '\0'; | |
2942 | } | |
2943 | ||
2944 | } else { | |
2945 | /* I2C component devices are named "bus-addr" */ | |
2946 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2947 | char tmp[NAME_SIZE]; | |
2948 | ||
2949 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2950 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2951 | |
2952 | /* sanitize component name for DAI link creation */ | |
2953 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2954 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2955 | } else |
2956 | *id = 0; | |
2957 | } | |
2958 | ||
2959 | return kstrdup(name, GFP_KERNEL); | |
2960 | } | |
2961 | ||
2962 | /* | |
2963 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2964 | * any ".-1" and using the DAI name (instead of device name). | |
2965 | */ | |
2966 | static inline char *fmt_multiple_name(struct device *dev, | |
2967 | struct snd_soc_dai_driver *dai_drv) | |
2968 | { | |
2969 | if (dai_drv->name == NULL) { | |
2970 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2971 | dev_name(dev)); | |
2972 | return NULL; | |
2973 | } | |
2974 | ||
2975 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2976 | } | |
2977 | ||
9115171a MB |
2978 | /** |
2979 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2980 | * | |
ac11a2b3 | 2981 | * @dai: DAI to register |
9115171a | 2982 | */ |
f0fba2ad LG |
2983 | int snd_soc_register_dai(struct device *dev, |
2984 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2985 | { |
f0fba2ad LG |
2986 | struct snd_soc_dai *dai; |
2987 | ||
2988 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2989 | |
f0fba2ad LG |
2990 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2991 | if (dai == NULL) | |
a7393623 | 2992 | return -ENOMEM; |
9115171a | 2993 | |
f0fba2ad LG |
2994 | /* create DAI component name */ |
2995 | dai->name = fmt_single_name(dev, &dai->id); | |
2996 | if (dai->name == NULL) { | |
2997 | kfree(dai); | |
2998 | return -ENOMEM; | |
2999 | } | |
6335d055 | 3000 | |
f0fba2ad LG |
3001 | dai->dev = dev; |
3002 | dai->driver = dai_drv; | |
3003 | if (!dai->driver->ops) | |
3004 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3005 | |
3006 | mutex_lock(&client_mutex); | |
3007 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3008 | snd_soc_instantiate_cards(); |
9115171a MB |
3009 | mutex_unlock(&client_mutex); |
3010 | ||
3011 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3012 | ||
3013 | return 0; | |
3014 | } | |
3015 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3016 | ||
3017 | /** | |
3018 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3019 | * | |
ac11a2b3 | 3020 | * @dai: DAI to unregister |
9115171a | 3021 | */ |
f0fba2ad | 3022 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3023 | { |
f0fba2ad LG |
3024 | struct snd_soc_dai *dai; |
3025 | ||
3026 | list_for_each_entry(dai, &dai_list, list) { | |
3027 | if (dev == dai->dev) | |
3028 | goto found; | |
3029 | } | |
3030 | return; | |
3031 | ||
3032 | found: | |
9115171a MB |
3033 | mutex_lock(&client_mutex); |
3034 | list_del(&dai->list); | |
3035 | mutex_unlock(&client_mutex); | |
3036 | ||
3037 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3038 | kfree(dai->name); |
3039 | kfree(dai); | |
9115171a MB |
3040 | } |
3041 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3042 | ||
3043 | /** | |
3044 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3045 | * | |
ac11a2b3 MB |
3046 | * @dai: Array of DAIs to register |
3047 | * @count: Number of DAIs | |
9115171a | 3048 | */ |
f0fba2ad LG |
3049 | int snd_soc_register_dais(struct device *dev, |
3050 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3051 | { |
f0fba2ad LG |
3052 | struct snd_soc_dai *dai; |
3053 | int i, ret = 0; | |
3054 | ||
720ffa4c | 3055 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3056 | |
3057 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3058 | |
3059 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3060 | if (dai == NULL) { |
3061 | ret = -ENOMEM; | |
3062 | goto err; | |
3063 | } | |
f0fba2ad LG |
3064 | |
3065 | /* create DAI component name */ | |
3066 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3067 | if (dai->name == NULL) { | |
3068 | kfree(dai); | |
3069 | ret = -EINVAL; | |
9115171a | 3070 | goto err; |
f0fba2ad LG |
3071 | } |
3072 | ||
3073 | dai->dev = dev; | |
f0fba2ad | 3074 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3075 | if (dai->driver->id) |
3076 | dai->id = dai->driver->id; | |
3077 | else | |
3078 | dai->id = i; | |
f0fba2ad LG |
3079 | if (!dai->driver->ops) |
3080 | dai->driver->ops = &null_dai_ops; | |
3081 | ||
3082 | mutex_lock(&client_mutex); | |
3083 | list_add(&dai->list, &dai_list); | |
3084 | mutex_unlock(&client_mutex); | |
3085 | ||
3086 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3087 | } |
3088 | ||
1dcb4f38 | 3089 | mutex_lock(&client_mutex); |
f0fba2ad | 3090 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3091 | mutex_unlock(&client_mutex); |
9115171a MB |
3092 | return 0; |
3093 | ||
3094 | err: | |
3095 | for (i--; i >= 0; i--) | |
f0fba2ad | 3096 | snd_soc_unregister_dai(dev); |
9115171a MB |
3097 | |
3098 | return ret; | |
3099 | } | |
3100 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3101 | ||
3102 | /** | |
3103 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3104 | * | |
ac11a2b3 MB |
3105 | * @dai: Array of DAIs to unregister |
3106 | * @count: Number of DAIs | |
9115171a | 3107 | */ |
f0fba2ad | 3108 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3109 | { |
3110 | int i; | |
3111 | ||
3112 | for (i = 0; i < count; i++) | |
f0fba2ad | 3113 | snd_soc_unregister_dai(dev); |
9115171a MB |
3114 | } |
3115 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3116 | ||
12a48a8c MB |
3117 | /** |
3118 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3119 | * | |
ac11a2b3 | 3120 | * @platform: platform to register |
12a48a8c | 3121 | */ |
f0fba2ad LG |
3122 | int snd_soc_register_platform(struct device *dev, |
3123 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3124 | { |
f0fba2ad LG |
3125 | struct snd_soc_platform *platform; |
3126 | ||
3127 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3128 | ||
3129 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3130 | if (platform == NULL) | |
a7393623 | 3131 | return -ENOMEM; |
f0fba2ad LG |
3132 | |
3133 | /* create platform component name */ | |
3134 | platform->name = fmt_single_name(dev, &platform->id); | |
3135 | if (platform->name == NULL) { | |
3136 | kfree(platform); | |
3137 | return -ENOMEM; | |
3138 | } | |
12a48a8c | 3139 | |
f0fba2ad LG |
3140 | platform->dev = dev; |
3141 | platform->driver = platform_drv; | |
b7950641 LG |
3142 | platform->dapm.dev = dev; |
3143 | platform->dapm.platform = platform; | |
12a48a8c MB |
3144 | |
3145 | mutex_lock(&client_mutex); | |
3146 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3147 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3148 | mutex_unlock(&client_mutex); |
3149 | ||
3150 | pr_debug("Registered platform '%s'\n", platform->name); | |
3151 | ||
3152 | return 0; | |
3153 | } | |
3154 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3155 | ||
3156 | /** | |
3157 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3158 | * | |
ac11a2b3 | 3159 | * @platform: platform to unregister |
12a48a8c | 3160 | */ |
f0fba2ad | 3161 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3162 | { |
f0fba2ad LG |
3163 | struct snd_soc_platform *platform; |
3164 | ||
3165 | list_for_each_entry(platform, &platform_list, list) { | |
3166 | if (dev == platform->dev) | |
3167 | goto found; | |
3168 | } | |
3169 | return; | |
3170 | ||
3171 | found: | |
12a48a8c MB |
3172 | mutex_lock(&client_mutex); |
3173 | list_del(&platform->list); | |
3174 | mutex_unlock(&client_mutex); | |
3175 | ||
3176 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3177 | kfree(platform->name); |
3178 | kfree(platform); | |
12a48a8c MB |
3179 | } |
3180 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3181 | ||
151ab22c MB |
3182 | static u64 codec_format_map[] = { |
3183 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3184 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3185 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3186 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3187 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3188 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3189 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3190 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3191 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3192 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3193 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3194 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3195 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3196 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3197 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3198 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3199 | }; | |
3200 | ||
3201 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3202 | * the endianness of the data but we're using the CPU format | |
3203 | * definitions which do need to include endianness so we ensure that | |
3204 | * codec DAIs always have both big and little endian variants set. | |
3205 | */ | |
3206 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3207 | { | |
3208 | int i; | |
3209 | ||
3210 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3211 | if (stream->formats & codec_format_map[i]) | |
3212 | stream->formats |= codec_format_map[i]; | |
3213 | } | |
3214 | ||
0d0cf00a MB |
3215 | /** |
3216 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3217 | * | |
ac11a2b3 | 3218 | * @codec: codec to register |
0d0cf00a | 3219 | */ |
f0fba2ad | 3220 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3221 | const struct snd_soc_codec_driver *codec_drv, |
3222 | struct snd_soc_dai_driver *dai_drv, | |
3223 | int num_dai) | |
0d0cf00a | 3224 | { |
3335ddca | 3225 | size_t reg_size; |
f0fba2ad LG |
3226 | struct snd_soc_codec *codec; |
3227 | int ret, i; | |
151ab22c | 3228 | |
f0fba2ad LG |
3229 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3230 | ||
3231 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3232 | if (codec == NULL) | |
3233 | return -ENOMEM; | |
0d0cf00a | 3234 | |
f0fba2ad LG |
3235 | /* create CODEC component name */ |
3236 | codec->name = fmt_single_name(dev, &codec->id); | |
3237 | if (codec->name == NULL) { | |
3238 | kfree(codec); | |
3239 | return -ENOMEM; | |
3240 | } | |
3241 | ||
23bbce34 DP |
3242 | if (codec_drv->compress_type) |
3243 | codec->compress_type = codec_drv->compress_type; | |
3244 | else | |
3245 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3246 | ||
c3acec26 MB |
3247 | codec->write = codec_drv->write; |
3248 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3249 | codec->volatile_register = codec_drv->volatile_register; |
3250 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3251 | codec->writable_register = codec_drv->writable_register; |
ce6120cc LG |
3252 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3253 | codec->dapm.dev = dev; | |
3254 | codec->dapm.codec = codec; | |
474b62d6 | 3255 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3256 | codec->dev = dev; |
3257 | codec->driver = codec_drv; | |
3258 | codec->num_dai = num_dai; | |
3259 | mutex_init(&codec->mutex); | |
ce6120cc | 3260 | |
f0fba2ad LG |
3261 | /* allocate CODEC register cache */ |
3262 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3263 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3264 | codec->reg_size = reg_size; |
3335ddca DP |
3265 | /* it is necessary to make a copy of the default register cache |
3266 | * because in the case of using a compression type that requires | |
3267 | * the default register cache to be marked as __devinitconst the | |
3268 | * kernel might have freed the array by the time we initialize | |
3269 | * the cache. | |
3270 | */ | |
2aa86323 DP |
3271 | if (codec_drv->reg_cache_default) { |
3272 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3273 | reg_size, GFP_KERNEL); | |
3274 | if (!codec->reg_def_copy) { | |
3275 | ret = -ENOMEM; | |
3276 | goto fail; | |
3277 | } | |
f0fba2ad | 3278 | } |
151ab22c MB |
3279 | } |
3280 | ||
1500b7b5 DP |
3281 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3282 | if (!codec->volatile_register) | |
3283 | codec->volatile_register = snd_soc_default_volatile_register; | |
3284 | if (!codec->readable_register) | |
3285 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3286 | if (!codec->writable_register) |
3287 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3288 | } |
3289 | ||
f0fba2ad LG |
3290 | for (i = 0; i < num_dai; i++) { |
3291 | fixup_codec_formats(&dai_drv[i].playback); | |
3292 | fixup_codec_formats(&dai_drv[i].capture); | |
3293 | } | |
3294 | ||
26b01ccd MB |
3295 | /* register any DAIs */ |
3296 | if (num_dai) { | |
3297 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3298 | if (ret < 0) | |
fdf0f54d | 3299 | goto fail; |
26b01ccd | 3300 | } |
f0fba2ad | 3301 | |
0d0cf00a MB |
3302 | mutex_lock(&client_mutex); |
3303 | list_add(&codec->list, &codec_list); | |
3304 | snd_soc_instantiate_cards(); | |
3305 | mutex_unlock(&client_mutex); | |
3306 | ||
3307 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3308 | return 0; |
f0fba2ad | 3309 | |
fdf0f54d | 3310 | fail: |
3335ddca DP |
3311 | kfree(codec->reg_def_copy); |
3312 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3313 | kfree(codec->name); |
3314 | kfree(codec); | |
3315 | return ret; | |
0d0cf00a MB |
3316 | } |
3317 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3318 | ||
3319 | /** | |
3320 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3321 | * | |
ac11a2b3 | 3322 | * @codec: codec to unregister |
0d0cf00a | 3323 | */ |
f0fba2ad | 3324 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3325 | { |
f0fba2ad LG |
3326 | struct snd_soc_codec *codec; |
3327 | int i; | |
3328 | ||
3329 | list_for_each_entry(codec, &codec_list, list) { | |
3330 | if (dev == codec->dev) | |
3331 | goto found; | |
3332 | } | |
3333 | return; | |
3334 | ||
3335 | found: | |
26b01ccd MB |
3336 | if (codec->num_dai) |
3337 | for (i = 0; i < codec->num_dai; i++) | |
3338 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3339 | |
0d0cf00a MB |
3340 | mutex_lock(&client_mutex); |
3341 | list_del(&codec->list); | |
3342 | mutex_unlock(&client_mutex); | |
3343 | ||
3344 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3345 | |
7a30a3db | 3346 | snd_soc_cache_exit(codec); |
3335ddca | 3347 | kfree(codec->reg_def_copy); |
1aafcd4d | 3348 | kfree(codec->name); |
f0fba2ad | 3349 | kfree(codec); |
0d0cf00a MB |
3350 | } |
3351 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3352 | ||
c9b3a40f | 3353 | static int __init snd_soc_init(void) |
db2a4165 | 3354 | { |
384c89e2 | 3355 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3356 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3357 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3358 | printk(KERN_WARNING |
3359 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3360 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3361 | } |
c3c5a19a | 3362 | |
8a9dab1a | 3363 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3364 | &codec_list_fops)) |
3365 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3366 | ||
8a9dab1a | 3367 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3368 | &dai_list_fops)) |
3369 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3370 | |
8a9dab1a | 3371 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3372 | &platform_list_fops)) |
3373 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3374 | #endif |
3375 | ||
fb257897 MB |
3376 | snd_soc_util_init(); |
3377 | ||
db2a4165 FM |
3378 | return platform_driver_register(&soc_driver); |
3379 | } | |
4abe8e16 | 3380 | module_init(snd_soc_init); |
db2a4165 | 3381 | |
7d8c16a6 | 3382 | static void __exit snd_soc_exit(void) |
db2a4165 | 3383 | { |
fb257897 MB |
3384 | snd_soc_util_exit(); |
3385 | ||
384c89e2 | 3386 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3387 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3388 | #endif |
3ff3f64b | 3389 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3390 | } |
db2a4165 FM |
3391 | module_exit(snd_soc_exit); |
3392 | ||
3393 | /* Module information */ | |
d331124d | 3394 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3395 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3396 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3397 | MODULE_ALIAS("platform:soc-audio"); |