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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 | 47 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
48 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e MB |
55 | static DEFINE_MUTEX(client_mutex); |
56 | static LIST_HEAD(card_list); | |
9115171a | 57 | static LIST_HEAD(dai_list); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
c5af3a2e | 60 | |
f0fba2ad | 61 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
2bc9a81e DP |
72 | /* returns the minimum number of bytes needed to represent |
73 | * a particular given value */ | |
74 | static int min_bytes_needed(unsigned long val) | |
75 | { | |
76 | int c = 0; | |
77 | int i; | |
78 | ||
79 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
80 | if (val & (1UL << i)) | |
81 | break; | |
82 | c = (sizeof val * 8) - c; | |
83 | if (!c || (c % 8)) | |
84 | c = (c + 8) / 8; | |
85 | else | |
86 | c /= 8; | |
87 | return c; | |
88 | } | |
89 | ||
13fd179f DP |
90 | /* fill buf which is 'len' bytes with a formatted |
91 | * string of the form 'reg: value\n' */ | |
92 | static int format_register_str(struct snd_soc_codec *codec, | |
93 | unsigned int reg, char *buf, size_t len) | |
94 | { | |
95 | int wordsize = codec->driver->reg_word_size * 2; | |
96 | int regsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; | |
97 | int ret; | |
98 | char tmpbuf[len + 1]; | |
99 | char regbuf[regsize + 1]; | |
100 | ||
101 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
102 | * try to abuse this function */ | |
103 | WARN_ON(len > 63); | |
104 | ||
105 | /* +2 for ': ' and + 1 for '\n' */ | |
106 | if (wordsize + regsize + 2 + 1 != len) | |
107 | return -EINVAL; | |
108 | ||
109 | ret = snd_soc_read(codec , reg); | |
110 | if (ret < 0) { | |
111 | memset(regbuf, 'X', regsize); | |
112 | regbuf[regsize] = '\0'; | |
113 | } else { | |
114 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
115 | } | |
116 | ||
117 | /* prepare the buffer */ | |
118 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
119 | /* copy it back to the caller without the '\0' */ | |
120 | memcpy(buf, tmpbuf, len); | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
2624d5fa | 125 | /* codec register dump */ |
13fd179f DP |
126 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
127 | size_t count, loff_t pos) | |
2624d5fa | 128 | { |
13fd179f | 129 | int i, step = 1; |
2bc9a81e | 130 | int wordsize, regsize; |
13fd179f DP |
131 | int len; |
132 | size_t total = 0; | |
133 | loff_t p = 0; | |
2bc9a81e DP |
134 | |
135 | wordsize = codec->driver->reg_word_size * 2; | |
136 | regsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; | |
2624d5fa | 137 | |
13fd179f DP |
138 | len = wordsize + regsize + 2 + 1; |
139 | ||
f0fba2ad | 140 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
141 | return 0; |
142 | ||
f0fba2ad LG |
143 | if (codec->driver->reg_cache_step) |
144 | step = codec->driver->reg_cache_step; | |
2624d5fa | 145 | |
f0fba2ad | 146 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 147 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa | 148 | continue; |
f0fba2ad LG |
149 | if (codec->driver->display_register) { |
150 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 151 | PAGE_SIZE - count, i); |
5164d74d | 152 | } else { |
13fd179f DP |
153 | /* only support larger than PAGE_SIZE bytes debugfs |
154 | * entries for the default case */ | |
155 | if (p >= pos) { | |
156 | if (total + len >= count - 1) | |
157 | break; | |
158 | format_register_str(codec, i, buf + total, len); | |
159 | total += len; | |
160 | } | |
161 | p += len; | |
5164d74d | 162 | } |
2624d5fa MB |
163 | } |
164 | ||
13fd179f | 165 | total = min(total, count - 1); |
2624d5fa | 166 | |
13fd179f | 167 | return total; |
2624d5fa | 168 | } |
13fd179f | 169 | |
2624d5fa MB |
170 | static ssize_t codec_reg_show(struct device *dev, |
171 | struct device_attribute *attr, char *buf) | |
172 | { | |
f0fba2ad LG |
173 | struct snd_soc_pcm_runtime *rtd = |
174 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
175 | ||
13fd179f | 176 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
177 | } |
178 | ||
179 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
180 | ||
dbe21408 MB |
181 | static ssize_t pmdown_time_show(struct device *dev, |
182 | struct device_attribute *attr, char *buf) | |
183 | { | |
f0fba2ad LG |
184 | struct snd_soc_pcm_runtime *rtd = |
185 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 186 | |
f0fba2ad | 187 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
188 | } |
189 | ||
190 | static ssize_t pmdown_time_set(struct device *dev, | |
191 | struct device_attribute *attr, | |
192 | const char *buf, size_t count) | |
193 | { | |
f0fba2ad LG |
194 | struct snd_soc_pcm_runtime *rtd = |
195 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 196 | int ret; |
dbe21408 | 197 | |
c593b520 MB |
198 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
199 | if (ret) | |
200 | return ret; | |
dbe21408 MB |
201 | |
202 | return count; | |
203 | } | |
204 | ||
205 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
206 | ||
2624d5fa MB |
207 | #ifdef CONFIG_DEBUG_FS |
208 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
209 | { | |
210 | file->private_data = inode->i_private; | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
13fd179f | 215 | size_t count, loff_t *ppos) |
2624d5fa MB |
216 | { |
217 | ssize_t ret; | |
218 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
219 | char *buf; |
220 | ||
221 | if (*ppos < 0 || !count) | |
222 | return -EINVAL; | |
223 | ||
224 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
225 | if (!buf) |
226 | return -ENOMEM; | |
13fd179f DP |
227 | |
228 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
229 | if (ret >= 0) { | |
230 | if (copy_to_user(user_buf, buf, ret)) { | |
231 | kfree(buf); | |
232 | return -EFAULT; | |
233 | } | |
234 | *ppos += ret; | |
235 | } | |
236 | ||
2624d5fa MB |
237 | kfree(buf); |
238 | return ret; | |
239 | } | |
240 | ||
241 | static ssize_t codec_reg_write_file(struct file *file, | |
242 | const char __user *user_buf, size_t count, loff_t *ppos) | |
243 | { | |
244 | char buf[32]; | |
245 | int buf_size; | |
246 | char *start = buf; | |
247 | unsigned long reg, value; | |
248 | int step = 1; | |
249 | struct snd_soc_codec *codec = file->private_data; | |
250 | ||
251 | buf_size = min(count, (sizeof(buf)-1)); | |
252 | if (copy_from_user(buf, user_buf, buf_size)) | |
253 | return -EFAULT; | |
254 | buf[buf_size] = 0; | |
255 | ||
f0fba2ad LG |
256 | if (codec->driver->reg_cache_step) |
257 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
258 | |
259 | while (*start == ' ') | |
260 | start++; | |
261 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 262 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
263 | return -EINVAL; |
264 | while (*start == ' ') | |
265 | start++; | |
266 | if (strict_strtoul(start, 16, &value)) | |
267 | return -EINVAL; | |
0d51a9cb MB |
268 | |
269 | /* Userspace has been fiddling around behind the kernel's back */ | |
270 | add_taint(TAINT_USER); | |
271 | ||
e4f078d8 | 272 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
273 | return buf_size; |
274 | } | |
275 | ||
276 | static const struct file_operations codec_reg_fops = { | |
277 | .open = codec_reg_open_file, | |
278 | .read = codec_reg_read_file, | |
279 | .write = codec_reg_write_file, | |
6038f373 | 280 | .llseek = default_llseek, |
2624d5fa MB |
281 | }; |
282 | ||
283 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
284 | { | |
d6ce4cf3 JN |
285 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
286 | ||
287 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
288 | debugfs_card_root); | |
2624d5fa MB |
289 | if (!codec->debugfs_codec_root) { |
290 | printk(KERN_WARNING | |
291 | "ASoC: Failed to create codec debugfs directory\n"); | |
292 | return; | |
293 | } | |
294 | ||
aaee8ef1 MB |
295 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
296 | &codec->cache_sync); | |
297 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
298 | &codec->cache_only); | |
299 | ||
2624d5fa MB |
300 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
301 | codec->debugfs_codec_root, | |
302 | codec, &codec_reg_fops); | |
303 | if (!codec->debugfs_reg) | |
304 | printk(KERN_WARNING | |
305 | "ASoC: Failed to create codec register debugfs file\n"); | |
306 | ||
ce6120cc | 307 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 308 | codec->debugfs_codec_root); |
ce6120cc | 309 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
310 | printk(KERN_WARNING |
311 | "Failed to create DAPM debugfs directory\n"); | |
312 | ||
ce6120cc | 313 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
314 | } |
315 | ||
316 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
317 | { | |
318 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
319 | } | |
320 | ||
c3c5a19a MB |
321 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
322 | size_t count, loff_t *ppos) | |
323 | { | |
324 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 325 | ssize_t len, ret = 0; |
c3c5a19a MB |
326 | struct snd_soc_codec *codec; |
327 | ||
328 | if (!buf) | |
329 | return -ENOMEM; | |
330 | ||
2b194f9d MB |
331 | list_for_each_entry(codec, &codec_list, list) { |
332 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
333 | codec->name); | |
334 | if (len >= 0) | |
335 | ret += len; | |
336 | if (ret > PAGE_SIZE) { | |
337 | ret = PAGE_SIZE; | |
338 | break; | |
339 | } | |
340 | } | |
c3c5a19a MB |
341 | |
342 | if (ret >= 0) | |
343 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
344 | ||
345 | kfree(buf); | |
346 | ||
347 | return ret; | |
348 | } | |
349 | ||
350 | static const struct file_operations codec_list_fops = { | |
351 | .read = codec_list_read_file, | |
352 | .llseek = default_llseek,/* read accesses f_pos */ | |
353 | }; | |
354 | ||
f3208780 MB |
355 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
356 | size_t count, loff_t *ppos) | |
357 | { | |
358 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 359 | ssize_t len, ret = 0; |
f3208780 MB |
360 | struct snd_soc_dai *dai; |
361 | ||
362 | if (!buf) | |
363 | return -ENOMEM; | |
364 | ||
2b194f9d MB |
365 | list_for_each_entry(dai, &dai_list, list) { |
366 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
367 | if (len >= 0) | |
368 | ret += len; | |
369 | if (ret > PAGE_SIZE) { | |
370 | ret = PAGE_SIZE; | |
371 | break; | |
372 | } | |
373 | } | |
f3208780 | 374 | |
2b194f9d | 375 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
376 | |
377 | kfree(buf); | |
378 | ||
379 | return ret; | |
380 | } | |
381 | ||
382 | static const struct file_operations dai_list_fops = { | |
383 | .read = dai_list_read_file, | |
384 | .llseek = default_llseek,/* read accesses f_pos */ | |
385 | }; | |
386 | ||
19c7ac27 MB |
387 | static ssize_t platform_list_read_file(struct file *file, |
388 | char __user *user_buf, | |
389 | size_t count, loff_t *ppos) | |
390 | { | |
391 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 392 | ssize_t len, ret = 0; |
19c7ac27 MB |
393 | struct snd_soc_platform *platform; |
394 | ||
395 | if (!buf) | |
396 | return -ENOMEM; | |
397 | ||
2b194f9d MB |
398 | list_for_each_entry(platform, &platform_list, list) { |
399 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
400 | platform->name); | |
401 | if (len >= 0) | |
402 | ret += len; | |
403 | if (ret > PAGE_SIZE) { | |
404 | ret = PAGE_SIZE; | |
405 | break; | |
406 | } | |
407 | } | |
19c7ac27 | 408 | |
2b194f9d | 409 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
410 | |
411 | kfree(buf); | |
412 | ||
413 | return ret; | |
414 | } | |
415 | ||
416 | static const struct file_operations platform_list_fops = { | |
417 | .read = platform_list_read_file, | |
418 | .llseek = default_llseek,/* read accesses f_pos */ | |
419 | }; | |
420 | ||
a6052154 JN |
421 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
422 | { | |
423 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 424 | snd_soc_debugfs_root); |
3a45b867 | 425 | if (!card->debugfs_card_root) { |
a6052154 JN |
426 | dev_warn(card->dev, |
427 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
428 | return; |
429 | } | |
430 | ||
431 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
432 | card->debugfs_card_root, | |
433 | &card->pop_time); | |
434 | if (!card->debugfs_pop_time) | |
435 | dev_warn(card->dev, | |
436 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
437 | } |
438 | ||
439 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
440 | { | |
441 | debugfs_remove_recursive(card->debugfs_card_root); | |
442 | } | |
443 | ||
2624d5fa MB |
444 | #else |
445 | ||
446 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
447 | { | |
448 | } | |
449 | ||
450 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
451 | { | |
452 | } | |
b95fccbc AL |
453 | |
454 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
455 | { | |
456 | } | |
457 | ||
458 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
459 | { | |
460 | } | |
2624d5fa MB |
461 | #endif |
462 | ||
db2a4165 FM |
463 | #ifdef CONFIG_SND_SOC_AC97_BUS |
464 | /* unregister ac97 codec */ | |
465 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
466 | { | |
467 | if (codec->ac97->dev.bus) | |
468 | device_unregister(&codec->ac97->dev); | |
469 | return 0; | |
470 | } | |
471 | ||
472 | /* stop no dev release warning */ | |
473 | static void soc_ac97_device_release(struct device *dev){} | |
474 | ||
475 | /* register ac97 codec to bus */ | |
476 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
477 | { | |
478 | int err; | |
479 | ||
480 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 481 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
482 | codec->ac97->dev.release = soc_ac97_device_release; |
483 | ||
bb072bf0 | 484 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 485 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
486 | err = device_register(&codec->ac97->dev); |
487 | if (err < 0) { | |
488 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
489 | codec->ac97->dev.bus = NULL; | |
490 | return err; | |
491 | } | |
492 | return 0; | |
493 | } | |
494 | #endif | |
495 | ||
06f409d7 MB |
496 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
497 | { | |
498 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
499 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
500 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
501 | int ret; |
502 | ||
f0fba2ad LG |
503 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
504 | rtd->dai_link->symmetric_rates) { | |
505 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
506 | rtd->rate); | |
06f409d7 MB |
507 | |
508 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
509 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
510 | rtd->rate, |
511 | rtd->rate); | |
06f409d7 | 512 | if (ret < 0) { |
f0fba2ad | 513 | dev_err(&rtd->dev, |
06f409d7 MB |
514 | "Unable to apply rate symmetry constraint: %d\n", ret); |
515 | return ret; | |
516 | } | |
517 | } | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
db2a4165 FM |
522 | /* |
523 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
524 | * then initialized and any private data can be allocated. This also calls | |
525 | * startup for the cpu DAI, platform, machine and codec DAI. | |
526 | */ | |
527 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
528 | { | |
529 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 530 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
531 | struct snd_soc_platform *platform = rtd->platform; |
532 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
533 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
534 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
535 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
536 | int ret = 0; |
537 | ||
538 | mutex_lock(&pcm_mutex); | |
539 | ||
540 | /* startup the audio subsystem */ | |
f0fba2ad LG |
541 | if (cpu_dai->driver->ops->startup) { |
542 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
543 | if (ret < 0) { |
544 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 545 | cpu_dai->name); |
db2a4165 FM |
546 | goto out; |
547 | } | |
548 | } | |
549 | ||
f0fba2ad LG |
550 | if (platform->driver->ops->open) { |
551 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
552 | if (ret < 0) { |
553 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
554 | goto platform_err; | |
555 | } | |
556 | } | |
557 | ||
f0fba2ad LG |
558 | if (codec_dai->driver->ops->startup) { |
559 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 560 | if (ret < 0) { |
cb666e5b LG |
561 | printk(KERN_ERR "asoc: can't open codec %s\n", |
562 | codec_dai->name); | |
563 | goto codec_dai_err; | |
db2a4165 FM |
564 | } |
565 | } | |
566 | ||
f0fba2ad LG |
567 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
568 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 569 | if (ret < 0) { |
f0fba2ad | 570 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 571 | goto machine_err; |
db2a4165 FM |
572 | } |
573 | } | |
574 | ||
a00f90f9 | 575 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
576 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
577 | runtime->hw.rate_min = | |
f0fba2ad LG |
578 | max(codec_dai_drv->playback.rate_min, |
579 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 580 | runtime->hw.rate_max = |
f0fba2ad LG |
581 | min(codec_dai_drv->playback.rate_max, |
582 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 583 | runtime->hw.channels_min = |
f0fba2ad LG |
584 | max(codec_dai_drv->playback.channels_min, |
585 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 586 | runtime->hw.channels_max = |
f0fba2ad LG |
587 | min(codec_dai_drv->playback.channels_max, |
588 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 589 | runtime->hw.formats = |
f0fba2ad | 590 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 591 | runtime->hw.rates = |
f0fba2ad LG |
592 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
593 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 594 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
595 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
596 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 597 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 598 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
599 | } else { |
600 | runtime->hw.rate_min = | |
f0fba2ad LG |
601 | max(codec_dai_drv->capture.rate_min, |
602 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 603 | runtime->hw.rate_max = |
f0fba2ad LG |
604 | min(codec_dai_drv->capture.rate_max, |
605 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 606 | runtime->hw.channels_min = |
f0fba2ad LG |
607 | max(codec_dai_drv->capture.channels_min, |
608 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 609 | runtime->hw.channels_max = |
f0fba2ad LG |
610 | min(codec_dai_drv->capture.channels_max, |
611 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 612 | runtime->hw.formats = |
f0fba2ad | 613 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 614 | runtime->hw.rates = |
f0fba2ad LG |
615 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
616 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 617 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
618 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
619 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 620 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 621 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
622 | } |
623 | ||
624 | snd_pcm_limit_hw_rates(runtime); | |
625 | if (!runtime->hw.rates) { | |
626 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 627 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 628 | goto config_err; |
db2a4165 FM |
629 | } |
630 | if (!runtime->hw.formats) { | |
631 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 632 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 633 | goto config_err; |
db2a4165 FM |
634 | } |
635 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
636 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 637 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 638 | goto config_err; |
db2a4165 FM |
639 | } |
640 | ||
06f409d7 MB |
641 | /* Symmetry only applies if we've already got an active stream. */ |
642 | if (cpu_dai->active || codec_dai->active) { | |
643 | ret = soc_pcm_apply_symmetry(substream); | |
644 | if (ret != 0) | |
bb1c0478 | 645 | goto config_err; |
06f409d7 MB |
646 | } |
647 | ||
f0fba2ad LG |
648 | pr_debug("asoc: %s <-> %s info:\n", |
649 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
650 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
651 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
652 | runtime->hw.channels_max); | |
653 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
654 | runtime->hw.rate_max); | |
db2a4165 | 655 | |
14dc5734 | 656 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
657 | cpu_dai->playback_active++; |
658 | codec_dai->playback_active++; | |
14dc5734 | 659 | } else { |
f0fba2ad LG |
660 | cpu_dai->capture_active++; |
661 | codec_dai->capture_active++; | |
14dc5734 JB |
662 | } |
663 | cpu_dai->active++; | |
664 | codec_dai->active++; | |
f0fba2ad | 665 | rtd->codec->active++; |
db2a4165 FM |
666 | mutex_unlock(&pcm_mutex); |
667 | return 0; | |
668 | ||
bb1c0478 | 669 | config_err: |
f0fba2ad LG |
670 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
671 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 672 | |
bb1c0478 | 673 | machine_err: |
f0fba2ad LG |
674 | if (codec_dai->driver->ops->shutdown) |
675 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 676 | |
cb666e5b | 677 | codec_dai_err: |
f0fba2ad LG |
678 | if (platform->driver->ops->close) |
679 | platform->driver->ops->close(substream); | |
db2a4165 FM |
680 | |
681 | platform_err: | |
f0fba2ad LG |
682 | if (cpu_dai->driver->ops->shutdown) |
683 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
684 | out: |
685 | mutex_unlock(&pcm_mutex); | |
686 | return ret; | |
687 | } | |
688 | ||
689 | /* | |
3a4fa0a2 | 690 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
691 | * This is to ensure there are no pops or clicks in between any music tracks |
692 | * due to DAPM power cycling. | |
693 | */ | |
4484bb2e | 694 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 695 | { |
f0fba2ad LG |
696 | struct snd_soc_pcm_runtime *rtd = |
697 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
698 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
699 | |
700 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
701 | |
702 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
703 | codec_dai->driver->playback.stream_name, | |
704 | codec_dai->playback_active ? "active" : "inactive", | |
705 | codec_dai->pop_wait ? "yes" : "no"); | |
706 | ||
707 | /* are we waiting on this codec DAI stream */ | |
708 | if (codec_dai->pop_wait == 1) { | |
709 | codec_dai->pop_wait = 0; | |
710 | snd_soc_dapm_stream_event(rtd, | |
711 | codec_dai->driver->playback.stream_name, | |
712 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 713 | } |
f0fba2ad | 714 | |
db2a4165 FM |
715 | mutex_unlock(&pcm_mutex); |
716 | } | |
717 | ||
718 | /* | |
719 | * Called by ALSA when a PCM substream is closed. Private data can be | |
720 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
721 | * shutdown. | |
722 | */ | |
723 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
724 | { | |
725 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
726 | struct snd_soc_platform *platform = rtd->platform; |
727 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
728 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
729 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
730 | |
731 | mutex_lock(&pcm_mutex); | |
732 | ||
14dc5734 | 733 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
734 | cpu_dai->playback_active--; |
735 | codec_dai->playback_active--; | |
14dc5734 | 736 | } else { |
f0fba2ad LG |
737 | cpu_dai->capture_active--; |
738 | codec_dai->capture_active--; | |
db2a4165 | 739 | } |
14dc5734 JB |
740 | |
741 | cpu_dai->active--; | |
742 | codec_dai->active--; | |
db2a4165 FM |
743 | codec->active--; |
744 | ||
6010b2da MB |
745 | /* Muting the DAC suppresses artifacts caused during digital |
746 | * shutdown, for example from stopping clocks. | |
747 | */ | |
748 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
749 | snd_soc_dai_digital_mute(codec_dai, 1); | |
750 | ||
f0fba2ad LG |
751 | if (cpu_dai->driver->ops->shutdown) |
752 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 753 | |
f0fba2ad LG |
754 | if (codec_dai->driver->ops->shutdown) |
755 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 756 | |
f0fba2ad LG |
757 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
758 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 759 | |
f0fba2ad LG |
760 | if (platform->driver->ops->close) |
761 | platform->driver->ops->close(substream); | |
762 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
763 | |
764 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
765 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 766 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
767 | schedule_delayed_work(&rtd->delayed_work, |
768 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
769 | } else { |
770 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
771 | snd_soc_dapm_stream_event(rtd, |
772 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 773 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
774 | } |
775 | ||
776 | mutex_unlock(&pcm_mutex); | |
777 | return 0; | |
778 | } | |
779 | ||
780 | /* | |
781 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
782 | * rate, etc. This function is non atomic and can be called multiple times, | |
783 | * it can refer to the runtime info. | |
784 | */ | |
785 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
786 | { | |
787 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
788 | struct snd_soc_platform *platform = rtd->platform; |
789 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
790 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
791 | int ret = 0; |
792 | ||
793 | mutex_lock(&pcm_mutex); | |
cb666e5b | 794 | |
f0fba2ad LG |
795 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
796 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
797 | if (ret < 0) { |
798 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
799 | goto out; | |
800 | } | |
801 | } | |
802 | ||
f0fba2ad LG |
803 | if (platform->driver->ops->prepare) { |
804 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
805 | if (ret < 0) { |
806 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 807 | goto out; |
a71a468a | 808 | } |
db2a4165 FM |
809 | } |
810 | ||
f0fba2ad LG |
811 | if (codec_dai->driver->ops->prepare) { |
812 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
813 | if (ret < 0) { |
814 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 815 | goto out; |
a71a468a | 816 | } |
db2a4165 FM |
817 | } |
818 | ||
f0fba2ad LG |
819 | if (cpu_dai->driver->ops->prepare) { |
820 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
821 | if (ret < 0) { |
822 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
823 | goto out; | |
824 | } | |
825 | } | |
db2a4165 | 826 | |
d45f6219 MB |
827 | /* cancel any delayed stream shutdown that is pending */ |
828 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
829 | codec_dai->pop_wait) { | |
830 | codec_dai->pop_wait = 0; | |
f0fba2ad | 831 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 832 | } |
db2a4165 | 833 | |
452c5eaa | 834 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
835 | snd_soc_dapm_stream_event(rtd, |
836 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
837 | SND_SOC_DAPM_STREAM_START); |
838 | else | |
f0fba2ad LG |
839 | snd_soc_dapm_stream_event(rtd, |
840 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 841 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 842 | |
452c5eaa | 843 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
844 | |
845 | out: | |
846 | mutex_unlock(&pcm_mutex); | |
847 | return ret; | |
848 | } | |
849 | ||
850 | /* | |
851 | * Called by ALSA when the hardware params are set by application. This | |
852 | * function can also be called multiple times and can allocate buffers | |
853 | * (using snd_pcm_lib_* ). It's non-atomic. | |
854 | */ | |
855 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
856 | struct snd_pcm_hw_params *params) | |
857 | { | |
858 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
859 | struct snd_soc_platform *platform = rtd->platform; |
860 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
861 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
862 | int ret = 0; |
863 | ||
864 | mutex_lock(&pcm_mutex); | |
865 | ||
f0fba2ad LG |
866 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
867 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
868 | if (ret < 0) { |
869 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 870 | goto out; |
cb666e5b | 871 | } |
db2a4165 FM |
872 | } |
873 | ||
f0fba2ad LG |
874 | if (codec_dai->driver->ops->hw_params) { |
875 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
876 | if (ret < 0) { |
877 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
878 | codec_dai->name); |
879 | goto codec_err; | |
db2a4165 FM |
880 | } |
881 | } | |
882 | ||
f0fba2ad LG |
883 | if (cpu_dai->driver->ops->hw_params) { |
884 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 885 | if (ret < 0) { |
3ff3f64b | 886 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 887 | cpu_dai->name); |
db2a4165 FM |
888 | goto interface_err; |
889 | } | |
890 | } | |
891 | ||
f0fba2ad LG |
892 | if (platform->driver->ops->hw_params) { |
893 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 894 | if (ret < 0) { |
3ff3f64b | 895 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
896 | platform->name); |
897 | goto platform_err; | |
898 | } | |
899 | } | |
900 | ||
f0fba2ad | 901 | rtd->rate = params_rate(params); |
06f409d7 | 902 | |
db2a4165 FM |
903 | out: |
904 | mutex_unlock(&pcm_mutex); | |
905 | return ret; | |
906 | ||
db2a4165 | 907 | platform_err: |
f0fba2ad LG |
908 | if (cpu_dai->driver->ops->hw_free) |
909 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
910 | |
911 | interface_err: | |
f0fba2ad LG |
912 | if (codec_dai->driver->ops->hw_free) |
913 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
914 | |
915 | codec_err: | |
f0fba2ad LG |
916 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
917 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
918 | |
919 | mutex_unlock(&pcm_mutex); | |
920 | return ret; | |
921 | } | |
922 | ||
923 | /* | |
a00f90f9 | 924 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
925 | */ |
926 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
927 | { | |
928 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
929 | struct snd_soc_platform *platform = rtd->platform; |
930 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
931 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
932 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
933 | |
934 | mutex_lock(&pcm_mutex); | |
935 | ||
936 | /* apply codec digital mute */ | |
8c6529db LG |
937 | if (!codec->active) |
938 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
939 | |
940 | /* free any machine hw params */ | |
f0fba2ad LG |
941 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
942 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
943 | |
944 | /* free any DMA resources */ | |
f0fba2ad LG |
945 | if (platform->driver->ops->hw_free) |
946 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 947 | |
a00f90f9 | 948 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
949 | if (codec_dai->driver->ops->hw_free) |
950 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 951 | |
f0fba2ad LG |
952 | if (cpu_dai->driver->ops->hw_free) |
953 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
954 | |
955 | mutex_unlock(&pcm_mutex); | |
956 | return 0; | |
957 | } | |
958 | ||
959 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
960 | { | |
961 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
962 | struct snd_soc_platform *platform = rtd->platform; |
963 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
964 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
965 | int ret; |
966 | ||
f0fba2ad LG |
967 | if (codec_dai->driver->ops->trigger) { |
968 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
969 | if (ret < 0) |
970 | return ret; | |
971 | } | |
972 | ||
f0fba2ad LG |
973 | if (platform->driver->ops->trigger) { |
974 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
975 | if (ret < 0) |
976 | return ret; | |
977 | } | |
978 | ||
f0fba2ad LG |
979 | if (cpu_dai->driver->ops->trigger) { |
980 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
981 | if (ret < 0) |
982 | return ret; | |
983 | } | |
984 | return 0; | |
985 | } | |
986 | ||
377b6f62 PU |
987 | /* |
988 | * soc level wrapper for pointer callback | |
258020d0 PU |
989 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
990 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
991 | */ |
992 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
993 | { | |
994 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
995 | struct snd_soc_platform *platform = rtd->platform; |
996 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
997 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 998 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 999 | snd_pcm_uframes_t offset = 0; |
258020d0 | 1000 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 1001 | |
f0fba2ad LG |
1002 | if (platform->driver->ops->pointer) |
1003 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 1004 | |
f0fba2ad LG |
1005 | if (cpu_dai->driver->ops->delay) |
1006 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 1007 | |
f0fba2ad LG |
1008 | if (codec_dai->driver->ops->delay) |
1009 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 1010 | |
f0fba2ad LG |
1011 | if (platform->driver->delay) |
1012 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
1013 | |
1014 | runtime->delay = delay; | |
1015 | ||
377b6f62 PU |
1016 | return offset; |
1017 | } | |
1018 | ||
db2a4165 FM |
1019 | /* ASoC PCM operations */ |
1020 | static struct snd_pcm_ops soc_pcm_ops = { | |
1021 | .open = soc_pcm_open, | |
1022 | .close = soc_codec_close, | |
1023 | .hw_params = soc_pcm_hw_params, | |
1024 | .hw_free = soc_pcm_hw_free, | |
1025 | .prepare = soc_pcm_prepare, | |
1026 | .trigger = soc_pcm_trigger, | |
377b6f62 | 1027 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
1028 | }; |
1029 | ||
6f8ab4ac | 1030 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 1031 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 1032 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 1033 | { |
6f8ab4ac | 1034 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 1035 | struct snd_soc_codec *codec; |
db2a4165 FM |
1036 | int i; |
1037 | ||
e3509ff0 DM |
1038 | /* If the initialization of this soc device failed, there is no codec |
1039 | * associated with it. Just bail out in this case. | |
1040 | */ | |
f0fba2ad | 1041 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
1042 | return 0; |
1043 | ||
6ed25978 AG |
1044 | /* Due to the resume being scheduled into a workqueue we could |
1045 | * suspend before that's finished - wait for it to complete. | |
1046 | */ | |
f0fba2ad LG |
1047 | snd_power_lock(card->snd_card); |
1048 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
1049 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
1050 | |
1051 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 1052 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 1053 | |
a00f90f9 | 1054 | /* mute any active DACs */ |
f0fba2ad LG |
1055 | for (i = 0; i < card->num_rtd; i++) { |
1056 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1057 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1058 | |
f0fba2ad | 1059 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1060 | continue; |
1061 | ||
f0fba2ad LG |
1062 | if (drv->ops->digital_mute && dai->playback_active) |
1063 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1064 | } |
1065 | ||
4ccab3e7 | 1066 | /* suspend all pcms */ |
f0fba2ad LG |
1067 | for (i = 0; i < card->num_rtd; i++) { |
1068 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1069 | continue; |
1070 | ||
f0fba2ad | 1071 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1072 | } |
4ccab3e7 | 1073 | |
87506549 | 1074 | if (card->suspend_pre) |
70b2ac12 | 1075 | card->suspend_pre(card); |
db2a4165 | 1076 | |
f0fba2ad LG |
1077 | for (i = 0; i < card->num_rtd; i++) { |
1078 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1079 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1080 | |
f0fba2ad | 1081 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1082 | continue; |
1083 | ||
f0fba2ad LG |
1084 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1085 | cpu_dai->driver->suspend(cpu_dai); | |
1086 | if (platform->driver->suspend && !platform->suspended) { | |
1087 | platform->driver->suspend(cpu_dai); | |
1088 | platform->suspended = 1; | |
1089 | } | |
db2a4165 FM |
1090 | } |
1091 | ||
1092 | /* close any waiting streams and save state */ | |
f0fba2ad | 1093 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1094 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1095 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1096 | } |
db2a4165 | 1097 | |
f0fba2ad LG |
1098 | for (i = 0; i < card->num_rtd; i++) { |
1099 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1100 | |
f0fba2ad | 1101 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1102 | continue; |
1103 | ||
f0fba2ad LG |
1104 | if (driver->playback.stream_name != NULL) |
1105 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1106 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1107 | |
1108 | if (driver->capture.stream_name != NULL) | |
1109 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1110 | SND_SOC_DAPM_STREAM_SUSPEND); |
1111 | } | |
1112 | ||
f0fba2ad | 1113 | /* suspend all CODECs */ |
2eea392d | 1114 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1115 | /* If there are paths active then the CODEC will be held with |
1116 | * bias _ON and should not be suspended. */ | |
1117 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1118 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1119 | case SND_SOC_BIAS_STANDBY: |
1120 | case SND_SOC_BIAS_OFF: | |
1121 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1122 | codec->suspended = 1; | |
1123 | break; | |
1124 | default: | |
1125 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1126 | break; | |
1127 | } | |
1547aba9 MB |
1128 | } |
1129 | } | |
db2a4165 | 1130 | |
f0fba2ad LG |
1131 | for (i = 0; i < card->num_rtd; i++) { |
1132 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1133 | |
f0fba2ad | 1134 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1135 | continue; |
1136 | ||
f0fba2ad LG |
1137 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1138 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1139 | } |
1140 | ||
87506549 | 1141 | if (card->suspend_post) |
70b2ac12 | 1142 | card->suspend_post(card); |
db2a4165 FM |
1143 | |
1144 | return 0; | |
1145 | } | |
6f8ab4ac | 1146 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 1147 | |
6ed25978 AG |
1148 | /* deferred resume work, so resume can complete before we finished |
1149 | * setting our codec back up, which can be very slow on I2C | |
1150 | */ | |
1151 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1152 | { |
f0fba2ad LG |
1153 | struct snd_soc_card *card = |
1154 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 1155 | struct snd_soc_codec *codec; |
db2a4165 FM |
1156 | int i; |
1157 | ||
6ed25978 AG |
1158 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1159 | * so userspace apps are blocked from touching us | |
1160 | */ | |
1161 | ||
f0fba2ad | 1162 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1163 | |
9949788b | 1164 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1165 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1166 | |
87506549 | 1167 | if (card->resume_pre) |
70b2ac12 | 1168 | card->resume_pre(card); |
db2a4165 | 1169 | |
f0fba2ad LG |
1170 | /* resume AC97 DAIs */ |
1171 | for (i = 0; i < card->num_rtd; i++) { | |
1172 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1173 | |
f0fba2ad | 1174 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1175 | continue; |
1176 | ||
f0fba2ad LG |
1177 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1178 | cpu_dai->driver->resume(cpu_dai); | |
1179 | } | |
1180 | ||
2eea392d | 1181 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1182 | /* If the CODEC was idle over suspend then it will have been |
1183 | * left with bias OFF or STANDBY and suspended so we must now | |
1184 | * resume. Otherwise the suspend was suppressed. | |
1185 | */ | |
1186 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1187 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1188 | case SND_SOC_BIAS_STANDBY: |
1189 | case SND_SOC_BIAS_OFF: | |
1190 | codec->driver->resume(codec); | |
1191 | codec->suspended = 0; | |
1192 | break; | |
1193 | default: | |
1194 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1195 | break; | |
1196 | } | |
1547aba9 MB |
1197 | } |
1198 | } | |
db2a4165 | 1199 | |
f0fba2ad LG |
1200 | for (i = 0; i < card->num_rtd; i++) { |
1201 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1202 | |
f0fba2ad | 1203 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1204 | continue; |
1205 | ||
f0fba2ad LG |
1206 | if (driver->playback.stream_name != NULL) |
1207 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1208 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1209 | |
1210 | if (driver->capture.stream_name != NULL) | |
1211 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1212 | SND_SOC_DAPM_STREAM_RESUME); |
1213 | } | |
1214 | ||
3ff3f64b | 1215 | /* unmute any active DACs */ |
f0fba2ad LG |
1216 | for (i = 0; i < card->num_rtd; i++) { |
1217 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1218 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1219 | |
f0fba2ad | 1220 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1221 | continue; |
1222 | ||
f0fba2ad LG |
1223 | if (drv->ops->digital_mute && dai->playback_active) |
1224 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1225 | } |
1226 | ||
f0fba2ad LG |
1227 | for (i = 0; i < card->num_rtd; i++) { |
1228 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1229 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1230 | |
f0fba2ad | 1231 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1232 | continue; |
1233 | ||
f0fba2ad LG |
1234 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1235 | cpu_dai->driver->resume(cpu_dai); | |
1236 | if (platform->driver->resume && platform->suspended) { | |
1237 | platform->driver->resume(cpu_dai); | |
1238 | platform->suspended = 0; | |
1239 | } | |
db2a4165 FM |
1240 | } |
1241 | ||
87506549 | 1242 | if (card->resume_post) |
70b2ac12 | 1243 | card->resume_post(card); |
db2a4165 | 1244 | |
f0fba2ad | 1245 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1246 | |
1247 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1248 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1249 | } |
1250 | ||
1251 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 1252 | int snd_soc_resume(struct device *dev) |
6ed25978 | 1253 | { |
6f8ab4ac | 1254 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1255 | int i; |
b9dd94a8 | 1256 | |
64ab9baa MB |
1257 | /* AC97 devices might have other drivers hanging off them so |
1258 | * need to resume immediately. Other drivers don't have that | |
1259 | * problem and may take a substantial amount of time to resume | |
1260 | * due to I/O costs and anti-pop so handle them out of line. | |
1261 | */ | |
f0fba2ad LG |
1262 | for (i = 0; i < card->num_rtd; i++) { |
1263 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1264 | if (cpu_dai->driver->ac97_control) { | |
1265 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1266 | soc_resume_deferred(&card->deferred_resume_work); | |
1267 | } else { | |
1268 | dev_dbg(dev, "Scheduling resume work\n"); | |
1269 | if (!schedule_work(&card->deferred_resume_work)) | |
1270 | dev_err(dev, "resume work item may be lost\n"); | |
1271 | } | |
64ab9baa | 1272 | } |
6ed25978 | 1273 | |
db2a4165 FM |
1274 | return 0; |
1275 | } | |
6f8ab4ac | 1276 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 1277 | #else |
6f8ab4ac MB |
1278 | #define snd_soc_suspend NULL |
1279 | #define snd_soc_resume NULL | |
db2a4165 FM |
1280 | #endif |
1281 | ||
02a06d30 BS |
1282 | static struct snd_soc_dai_ops null_dai_ops = { |
1283 | }; | |
1284 | ||
f0fba2ad | 1285 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1286 | { |
f0fba2ad LG |
1287 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1288 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1289 | struct snd_soc_codec *codec; |
435c5e25 | 1290 | struct snd_soc_platform *platform; |
f0fba2ad | 1291 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1292 | |
f0fba2ad LG |
1293 | if (rtd->complete) |
1294 | return 1; | |
1295 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1296 | |
f0fba2ad LG |
1297 | /* do we already have the CPU DAI for this link ? */ |
1298 | if (rtd->cpu_dai) { | |
1299 | goto find_codec; | |
1300 | } | |
1301 | /* no, then find CPU DAI from registered DAIs*/ | |
1302 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1303 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1304 | ||
1305 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1306 | return -ENODEV; | |
1307 | ||
1308 | rtd->cpu_dai = cpu_dai; | |
1309 | goto find_codec; | |
435c5e25 | 1310 | } |
435c5e25 | 1311 | } |
f0fba2ad LG |
1312 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1313 | dai_link->cpu_dai_name); | |
6308419a | 1314 | |
f0fba2ad LG |
1315 | find_codec: |
1316 | /* do we already have the CODEC for this link ? */ | |
1317 | if (rtd->codec) { | |
1318 | goto find_platform; | |
1319 | } | |
1320 | ||
1321 | /* no, then find CODEC from registered CODECs*/ | |
1322 | list_for_each_entry(codec, &codec_list, list) { | |
1323 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1324 | rtd->codec = codec; | |
1325 | ||
f0fba2ad LG |
1326 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1327 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1328 | if (codec->dev == codec_dai->dev && | |
1329 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1330 | rtd->codec_dai = codec_dai; | |
1331 | goto find_platform; | |
1332 | } | |
435c5e25 | 1333 | } |
f0fba2ad LG |
1334 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1335 | dai_link->codec_dai_name); | |
1336 | ||
1337 | goto find_platform; | |
435c5e25 | 1338 | } |
f0fba2ad LG |
1339 | } |
1340 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1341 | dai_link->codec_name); | |
6b05eda6 | 1342 | |
f0fba2ad LG |
1343 | find_platform: |
1344 | /* do we already have the CODEC DAI for this link ? */ | |
1345 | if (rtd->platform) { | |
1346 | goto out; | |
c5af3a2e | 1347 | } |
f0fba2ad LG |
1348 | /* no, then find CPU DAI from registered DAIs*/ |
1349 | list_for_each_entry(platform, &platform_list, list) { | |
1350 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1351 | rtd->platform = platform; |
1352 | goto out; | |
1353 | } | |
02a06d30 BS |
1354 | } |
1355 | ||
f0fba2ad LG |
1356 | dev_dbg(card->dev, "platform %s not registered\n", |
1357 | dai_link->platform_name); | |
1358 | return 0; | |
1359 | ||
1360 | out: | |
1361 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1362 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1363 | rtd->complete = 1; | |
1364 | card->num_rtd++; | |
1365 | } | |
1366 | return 1; | |
1367 | } | |
1368 | ||
589c3563 JN |
1369 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1370 | { | |
1371 | int err; | |
1372 | ||
1373 | if (codec->driver->remove) { | |
1374 | err = codec->driver->remove(codec); | |
1375 | if (err < 0) | |
1376 | dev_err(codec->dev, | |
1377 | "asoc: failed to remove %s: %d\n", | |
1378 | codec->name, err); | |
1379 | } | |
1380 | ||
1381 | /* Make sure all DAPM widgets are freed */ | |
1382 | snd_soc_dapm_free(&codec->dapm); | |
1383 | ||
1384 | soc_cleanup_codec_debugfs(codec); | |
1385 | codec->probed = 0; | |
1386 | list_del(&codec->card_list); | |
1387 | module_put(codec->dev->driver->owner); | |
1388 | } | |
1389 | ||
f0fba2ad LG |
1390 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1391 | { | |
1392 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1393 | struct snd_soc_codec *codec = rtd->codec; | |
1394 | struct snd_soc_platform *platform = rtd->platform; | |
1395 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1396 | int err; | |
1397 | ||
1398 | /* unregister the rtd device */ | |
1399 | if (rtd->dev_registered) { | |
1400 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1401 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1402 | device_unregister(&rtd->dev); |
1403 | rtd->dev_registered = 0; | |
1404 | } | |
1405 | ||
1406 | /* remove the CODEC DAI */ | |
1407 | if (codec_dai && codec_dai->probed) { | |
1408 | if (codec_dai->driver->remove) { | |
1409 | err = codec_dai->driver->remove(codec_dai); | |
1410 | if (err < 0) | |
1411 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1412 | } |
f0fba2ad LG |
1413 | codec_dai->probed = 0; |
1414 | list_del(&codec_dai->card_list); | |
1415 | } | |
6b05eda6 | 1416 | |
f0fba2ad LG |
1417 | /* remove the platform */ |
1418 | if (platform && platform->probed) { | |
1419 | if (platform->driver->remove) { | |
1420 | err = platform->driver->remove(platform); | |
1421 | if (err < 0) | |
1422 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1423 | } | |
1424 | platform->probed = 0; | |
1425 | list_del(&platform->card_list); | |
1426 | module_put(platform->dev->driver->owner); | |
1427 | } | |
435c5e25 | 1428 | |
f0fba2ad | 1429 | /* remove the CODEC */ |
589c3563 JN |
1430 | if (codec && codec->probed) |
1431 | soc_remove_codec(codec); | |
db2a4165 | 1432 | |
f0fba2ad LG |
1433 | /* remove the cpu_dai */ |
1434 | if (cpu_dai && cpu_dai->probed) { | |
1435 | if (cpu_dai->driver->remove) { | |
1436 | err = cpu_dai->driver->remove(cpu_dai); | |
1437 | if (err < 0) | |
1438 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1439 | } |
f0fba2ad LG |
1440 | cpu_dai->probed = 0; |
1441 | list_del(&cpu_dai->card_list); | |
1442 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1443 | } |
f0fba2ad | 1444 | } |
db2a4165 | 1445 | |
ead9b919 JN |
1446 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1447 | struct snd_soc_codec *codec) | |
1448 | { | |
1449 | int i; | |
1450 | ||
ff819b83 | 1451 | if (card->codec_conf == NULL) |
ead9b919 JN |
1452 | return; |
1453 | ||
ff819b83 DP |
1454 | for (i = 0; i < card->num_configs; i++) { |
1455 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1456 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1457 | codec->name_prefix = map->name_prefix; | |
1458 | break; | |
1459 | } | |
1460 | } | |
1461 | } | |
1462 | ||
589c3563 JN |
1463 | static int soc_probe_codec(struct snd_soc_card *card, |
1464 | struct snd_soc_codec *codec) | |
1465 | { | |
1466 | int ret = 0; | |
1467 | ||
1468 | codec->card = card; | |
1469 | codec->dapm.card = card; | |
1470 | soc_set_name_prefix(card, codec); | |
1471 | ||
70d29331 JN |
1472 | if (!try_module_get(codec->dev->driver->owner)) |
1473 | return -ENODEV; | |
1474 | ||
589c3563 JN |
1475 | if (codec->driver->probe) { |
1476 | ret = codec->driver->probe(codec); | |
1477 | if (ret < 0) { | |
1478 | dev_err(codec->dev, | |
1479 | "asoc: failed to probe CODEC %s: %d\n", | |
1480 | codec->name, ret); | |
70d29331 | 1481 | goto err_probe; |
589c3563 JN |
1482 | } |
1483 | } | |
1484 | ||
1485 | soc_init_codec_debugfs(codec); | |
1486 | ||
1487 | /* mark codec as probed and add to card codec list */ | |
1488 | codec->probed = 1; | |
1489 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1490 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1491 | |
70d29331 JN |
1492 | return 0; |
1493 | ||
1494 | err_probe: | |
1495 | module_put(codec->dev->driver->owner); | |
1496 | ||
589c3563 JN |
1497 | return ret; |
1498 | } | |
1499 | ||
f0fba2ad LG |
1500 | static void rtd_release(struct device *dev) {} |
1501 | ||
589c3563 JN |
1502 | static int soc_post_component_init(struct snd_soc_card *card, |
1503 | struct snd_soc_codec *codec, | |
1504 | int num, int dailess) | |
1505 | { | |
1506 | struct snd_soc_dai_link *dai_link = NULL; | |
1507 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1508 | struct snd_soc_pcm_runtime *rtd; | |
1509 | const char *temp, *name; | |
1510 | int ret = 0; | |
1511 | ||
1512 | if (!dailess) { | |
1513 | dai_link = &card->dai_link[num]; | |
1514 | rtd = &card->rtd[num]; | |
1515 | name = dai_link->name; | |
1516 | } else { | |
1517 | aux_dev = &card->aux_dev[num]; | |
1518 | rtd = &card->rtd_aux[num]; | |
1519 | name = aux_dev->name; | |
1520 | } | |
0962bb21 | 1521 | rtd->card = card; |
589c3563 JN |
1522 | |
1523 | /* machine controls, routes and widgets are not prefixed */ | |
1524 | temp = codec->name_prefix; | |
1525 | codec->name_prefix = NULL; | |
1526 | ||
1527 | /* do machine specific initialization */ | |
1528 | if (!dailess && dai_link->init) | |
1529 | ret = dai_link->init(rtd); | |
1530 | else if (dailess && aux_dev->init) | |
1531 | ret = aux_dev->init(&codec->dapm); | |
1532 | if (ret < 0) { | |
1533 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1534 | return ret; | |
1535 | } | |
1536 | codec->name_prefix = temp; | |
1537 | ||
1538 | /* Make sure all DAPM widgets are instantiated */ | |
1539 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1540 | |
1541 | /* register the rtd device */ | |
1542 | rtd->codec = codec; | |
589c3563 JN |
1543 | rtd->dev.parent = card->dev; |
1544 | rtd->dev.release = rtd_release; | |
1545 | rtd->dev.init_name = name; | |
1546 | ret = device_register(&rtd->dev); | |
1547 | if (ret < 0) { | |
1548 | dev_err(card->dev, | |
1549 | "asoc: failed to register runtime device: %d\n", ret); | |
1550 | return ret; | |
1551 | } | |
1552 | rtd->dev_registered = 1; | |
1553 | ||
1554 | /* add DAPM sysfs entries for this codec */ | |
1555 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1556 | if (ret < 0) | |
1557 | dev_err(codec->dev, | |
1558 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1559 | ret); | |
1560 | ||
1561 | /* add codec sysfs entries */ | |
1562 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1563 | if (ret < 0) | |
1564 | dev_err(codec->dev, | |
1565 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1566 | ||
1567 | return 0; | |
1568 | } | |
1569 | ||
f0fba2ad LG |
1570 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1571 | { | |
1572 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1573 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1574 | struct snd_soc_codec *codec = rtd->codec; | |
1575 | struct snd_soc_platform *platform = rtd->platform; | |
1576 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1577 | int ret; | |
1578 | ||
1579 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1580 | ||
1581 | /* config components */ | |
1582 | codec_dai->codec = codec; | |
f0fba2ad | 1583 | cpu_dai->platform = platform; |
f0fba2ad LG |
1584 | codec_dai->card = card; |
1585 | cpu_dai->card = card; | |
1586 | ||
1587 | /* set default power off timeout */ | |
1588 | rtd->pmdown_time = pmdown_time; | |
1589 | ||
1590 | /* probe the cpu_dai */ | |
1591 | if (!cpu_dai->probed) { | |
1592 | if (cpu_dai->driver->probe) { | |
1593 | ret = cpu_dai->driver->probe(cpu_dai); | |
1594 | if (ret < 0) { | |
1595 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1596 | cpu_dai->name); | |
1597 | return ret; | |
1598 | } | |
1599 | } | |
1600 | cpu_dai->probed = 1; | |
1601 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1602 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1603 | } |
1604 | ||
f0fba2ad LG |
1605 | /* probe the CODEC */ |
1606 | if (!codec->probed) { | |
589c3563 JN |
1607 | ret = soc_probe_codec(card, codec); |
1608 | if (ret < 0) | |
1609 | return ret; | |
db2a4165 FM |
1610 | } |
1611 | ||
f0fba2ad LG |
1612 | /* probe the platform */ |
1613 | if (!platform->probed) { | |
70d29331 JN |
1614 | if (!try_module_get(platform->dev->driver->owner)) |
1615 | return -ENODEV; | |
1616 | ||
f0fba2ad LG |
1617 | if (platform->driver->probe) { |
1618 | ret = platform->driver->probe(platform); | |
1619 | if (ret < 0) { | |
1620 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1621 | platform->name); | |
70d29331 | 1622 | module_put(platform->dev->driver->owner); |
f0fba2ad LG |
1623 | return ret; |
1624 | } | |
1625 | } | |
1626 | /* mark platform as probed and add to card platform list */ | |
1627 | platform->probed = 1; | |
1628 | list_add(&platform->card_list, &card->platform_dev_list); | |
1629 | } | |
6ed25978 | 1630 | |
f0fba2ad LG |
1631 | /* probe the CODEC DAI */ |
1632 | if (!codec_dai->probed) { | |
1633 | if (codec_dai->driver->probe) { | |
1634 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1635 | if (ret < 0) { |
f0fba2ad LG |
1636 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1637 | codec_dai->name); | |
1638 | return ret; | |
fe3e78e0 MB |
1639 | } |
1640 | } | |
f0fba2ad LG |
1641 | |
1642 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1643 | codec_dai->probed = 1; | |
1644 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1645 | } |
1646 | ||
f0fba2ad LG |
1647 | /* DAPM dai link stream work */ |
1648 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1649 | ||
589c3563 JN |
1650 | ret = soc_post_component_init(card, codec, num, 0); |
1651 | if (ret) | |
f0fba2ad | 1652 | return ret; |
fe3e78e0 | 1653 | |
f0fba2ad LG |
1654 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1655 | if (ret < 0) | |
1656 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1657 | ||
f0fba2ad LG |
1658 | /* create the pcm */ |
1659 | ret = soc_new_pcm(rtd, num); | |
1660 | if (ret < 0) { | |
1661 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1662 | return ret; | |
1663 | } | |
1664 | ||
1665 | /* add platform data for AC97 devices */ | |
1666 | if (rtd->codec_dai->driver->ac97_control) | |
1667 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1668 | ||
1669 | return 0; | |
1670 | } | |
1671 | ||
fe3e78e0 | 1672 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1673 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1674 | { | |
1675 | int ret; | |
1676 | ||
fe3e78e0 MB |
1677 | /* Only instantiate AC97 if not already done by the adaptor |
1678 | * for the generic AC97 subsystem. | |
1679 | */ | |
f0fba2ad | 1680 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1681 | /* |
1682 | * It is possible that the AC97 device is already registered to | |
1683 | * the device subsystem. This happens when the device is created | |
1684 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1685 | * is the generic AC97 glue but others migh emerge. | |
1686 | * | |
1687 | * In those cases we don't try to register the device again. | |
1688 | */ | |
1689 | if (!rtd->codec->ac97_created) | |
1690 | return 0; | |
f0fba2ad LG |
1691 | |
1692 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1693 | if (ret < 0) { |
1694 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1695 | return ret; |
fe3e78e0 | 1696 | } |
f0fba2ad LG |
1697 | |
1698 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1699 | } |
f0fba2ad LG |
1700 | return 0; |
1701 | } | |
1702 | ||
1703 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1704 | { | |
1705 | if (codec->ac97_registered) { | |
1706 | soc_ac97_dev_unregister(codec); | |
1707 | codec->ac97_registered = 0; | |
1708 | } | |
1709 | } | |
fe3e78e0 MB |
1710 | #endif |
1711 | ||
2eea392d JN |
1712 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1713 | { | |
1714 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1715 | struct snd_soc_codec *codec; |
676ad98a | 1716 | int ret = -ENODEV; |
2eea392d JN |
1717 | |
1718 | /* find CODEC from registered CODECs*/ | |
1719 | list_for_each_entry(codec, &codec_list, list) { | |
1720 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1721 | if (codec->probed) { | |
1722 | dev_err(codec->dev, | |
1723 | "asoc: codec already probed"); | |
1724 | ret = -EBUSY; | |
1725 | goto out; | |
1726 | } | |
676ad98a | 1727 | goto found; |
2eea392d JN |
1728 | } |
1729 | } | |
676ad98a JN |
1730 | /* codec not found */ |
1731 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1732 | goto out; | |
2eea392d | 1733 | |
676ad98a | 1734 | found: |
589c3563 | 1735 | ret = soc_probe_codec(card, codec); |
2eea392d | 1736 | if (ret < 0) |
589c3563 | 1737 | return ret; |
2eea392d | 1738 | |
589c3563 | 1739 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1740 | |
1741 | out: | |
1742 | return ret; | |
1743 | } | |
1744 | ||
1745 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1746 | { | |
1747 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1748 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1749 | |
1750 | /* unregister the rtd device */ | |
1751 | if (rtd->dev_registered) { | |
589c3563 | 1752 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1753 | device_unregister(&rtd->dev); |
1754 | rtd->dev_registered = 0; | |
1755 | } | |
1756 | ||
589c3563 JN |
1757 | if (codec && codec->probed) |
1758 | soc_remove_codec(codec); | |
2eea392d JN |
1759 | } |
1760 | ||
fdf0f54d DP |
1761 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1762 | enum snd_soc_compress_type compress_type) | |
1763 | { | |
1764 | int ret; | |
1765 | ||
1766 | if (codec->cache_init) | |
1767 | return 0; | |
1768 | ||
1769 | /* override the compress_type if necessary */ | |
1770 | if (compress_type && codec->compress_type != compress_type) | |
1771 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1772 | ret = snd_soc_cache_init(codec); |
1773 | if (ret < 0) { | |
1774 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1775 | ret); | |
1776 | return ret; | |
1777 | } | |
1778 | codec->cache_init = 1; | |
1779 | return 0; | |
1780 | } | |
1781 | ||
f0fba2ad LG |
1782 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1783 | { | |
fdf0f54d DP |
1784 | struct snd_soc_codec *codec; |
1785 | struct snd_soc_codec_conf *codec_conf; | |
1786 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1787 | int ret, i; |
fe3e78e0 | 1788 | |
f0fba2ad | 1789 | mutex_lock(&card->mutex); |
dbe21408 | 1790 | |
f0fba2ad LG |
1791 | if (card->instantiated) { |
1792 | mutex_unlock(&card->mutex); | |
1793 | return; | |
1794 | } | |
fe3e78e0 | 1795 | |
f0fba2ad LG |
1796 | /* bind DAIs */ |
1797 | for (i = 0; i < card->num_links; i++) | |
1798 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1799 | |
f0fba2ad LG |
1800 | /* bind completed ? */ |
1801 | if (card->num_rtd != card->num_links) { | |
1802 | mutex_unlock(&card->mutex); | |
1803 | return; | |
1804 | } | |
435c5e25 | 1805 | |
fdf0f54d DP |
1806 | /* initialize the register cache for each available codec */ |
1807 | list_for_each_entry(codec, &codec_list, list) { | |
1808 | if (codec->cache_init) | |
1809 | continue; | |
861f2faf DP |
1810 | /* by default we don't override the compress_type */ |
1811 | compress_type = 0; | |
fdf0f54d DP |
1812 | /* check to see if we need to override the compress_type */ |
1813 | for (i = 0; i < card->num_configs; ++i) { | |
1814 | codec_conf = &card->codec_conf[i]; | |
1815 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1816 | compress_type = codec_conf->compress_type; | |
1817 | if (compress_type && compress_type | |
1818 | != codec->compress_type) | |
1819 | break; | |
1820 | } | |
1821 | } | |
fdf0f54d DP |
1822 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1823 | if (ret < 0) { | |
1824 | mutex_unlock(&card->mutex); | |
1825 | return; | |
1826 | } | |
1827 | } | |
1828 | ||
f0fba2ad LG |
1829 | /* card bind complete so register a sound card */ |
1830 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1831 | card->owner, 0, &card->snd_card); | |
1832 | if (ret < 0) { | |
1833 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1834 | card->name); | |
1835 | mutex_unlock(&card->mutex); | |
1836 | return; | |
1837 | } | |
1838 | card->snd_card->dev = card->dev; | |
1839 | ||
e37a4970 MB |
1840 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1841 | card->dapm.dev = card->dev; | |
1842 | card->dapm.card = card; | |
1843 | list_add(&card->dapm.list, &card->dapm_list); | |
1844 | ||
88ee1c61 | 1845 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1846 | /* deferred resume work */ |
1847 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1848 | #endif | |
db2a4165 | 1849 | |
f0fba2ad LG |
1850 | /* initialise the sound card only once */ |
1851 | if (card->probe) { | |
e7361ec4 | 1852 | ret = card->probe(card); |
f0fba2ad LG |
1853 | if (ret < 0) |
1854 | goto card_probe_error; | |
1855 | } | |
fe3e78e0 | 1856 | |
f0fba2ad LG |
1857 | for (i = 0; i < card->num_links; i++) { |
1858 | ret = soc_probe_dai_link(card, i); | |
1859 | if (ret < 0) { | |
321de0d0 MB |
1860 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1861 | card->name, ret); | |
f0fba2ad LG |
1862 | goto probe_dai_err; |
1863 | } | |
1864 | } | |
db2a4165 | 1865 | |
2eea392d JN |
1866 | for (i = 0; i < card->num_aux_devs; i++) { |
1867 | ret = soc_probe_aux_dev(card, i); | |
1868 | if (ret < 0) { | |
1869 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1870 | card->name, ret); | |
1871 | goto probe_aux_dev_err; | |
1872 | } | |
1873 | } | |
1874 | ||
b8ad29de MB |
1875 | if (card->dapm_widgets) |
1876 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1877 | card->num_dapm_widgets); | |
1878 | if (card->dapm_routes) | |
1879 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1880 | card->num_dapm_routes); | |
1881 | ||
a2721fd9 | 1882 | #ifdef CONFIG_DEBUG_FS |
e37a4970 MB |
1883 | card->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
1884 | card->debugfs_card_root); | |
1885 | if (!card->dapm.debugfs_dapm) | |
1886 | printk(KERN_WARNING | |
1887 | "Failed to create card DAPM debugfs directory\n"); | |
1888 | ||
1889 | snd_soc_dapm_debugfs_init(&card->dapm); | |
a2721fd9 | 1890 | #endif |
e37a4970 | 1891 | |
f0fba2ad LG |
1892 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1893 | "%s", card->name); | |
1894 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1895 | "%s", card->name); | |
1896 | ||
28e9ad92 MB |
1897 | if (card->late_probe) { |
1898 | ret = card->late_probe(card); | |
1899 | if (ret < 0) { | |
1900 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1901 | card->name, ret); | |
1902 | goto probe_aux_dev_err; | |
1903 | } | |
1904 | } | |
1905 | ||
f0fba2ad LG |
1906 | ret = snd_card_register(card->snd_card); |
1907 | if (ret < 0) { | |
1908 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1909 | goto probe_aux_dev_err; |
db2a4165 FM |
1910 | } |
1911 | ||
f0fba2ad LG |
1912 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1913 | /* register any AC97 codecs */ | |
1914 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1915 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1916 | if (ret < 0) { | |
1917 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1918 | while (--i >= 0) | |
7d8316df | 1919 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1920 | goto probe_aux_dev_err; |
f0fba2ad | 1921 | } |
6b3ed785 | 1922 | } |
f0fba2ad LG |
1923 | #endif |
1924 | ||
1925 | card->instantiated = 1; | |
1926 | mutex_unlock(&card->mutex); | |
1927 | return; | |
1928 | ||
2eea392d JN |
1929 | probe_aux_dev_err: |
1930 | for (i = 0; i < card->num_aux_devs; i++) | |
1931 | soc_remove_aux_dev(card, i); | |
1932 | ||
f0fba2ad LG |
1933 | probe_dai_err: |
1934 | for (i = 0; i < card->num_links; i++) | |
1935 | soc_remove_dai_link(card, i); | |
1936 | ||
1937 | card_probe_error: | |
87506549 | 1938 | if (card->remove) |
e7361ec4 | 1939 | card->remove(card); |
f0fba2ad LG |
1940 | |
1941 | snd_card_free(card->snd_card); | |
1942 | ||
1943 | mutex_unlock(&card->mutex); | |
435c5e25 | 1944 | } |
db2a4165 | 1945 | |
435c5e25 | 1946 | /* |
421f91d2 | 1947 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1948 | * client_mutex. |
1949 | */ | |
1950 | static void snd_soc_instantiate_cards(void) | |
1951 | { | |
1952 | struct snd_soc_card *card; | |
1953 | list_for_each_entry(card, &card_list, list) | |
1954 | snd_soc_instantiate_card(card); | |
1955 | } | |
1956 | ||
1957 | /* probes a new socdev */ | |
1958 | static int soc_probe(struct platform_device *pdev) | |
1959 | { | |
f0fba2ad | 1960 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1961 | int ret = 0; |
435c5e25 | 1962 | |
70a7ca34 VK |
1963 | /* |
1964 | * no card, so machine driver should be registering card | |
1965 | * we should not be here in that case so ret error | |
1966 | */ | |
1967 | if (!card) | |
1968 | return -EINVAL; | |
1969 | ||
435c5e25 MB |
1970 | /* Bodge while we unpick instantiation */ |
1971 | card->dev = &pdev->dev; | |
f0fba2ad | 1972 | |
435c5e25 MB |
1973 | ret = snd_soc_register_card(card); |
1974 | if (ret != 0) { | |
1975 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1976 | return ret; | |
1977 | } | |
1978 | ||
1979 | return 0; | |
db2a4165 FM |
1980 | } |
1981 | ||
b0e26485 | 1982 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1983 | { |
1984 | int i; | |
db2a4165 | 1985 | |
b0e26485 VK |
1986 | /* make sure any delayed work runs */ |
1987 | for (i = 0; i < card->num_rtd; i++) { | |
1988 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1989 | flush_delayed_work_sync(&rtd->delayed_work); | |
1990 | } | |
914dc182 | 1991 | |
b0e26485 VK |
1992 | /* remove auxiliary devices */ |
1993 | for (i = 0; i < card->num_aux_devs; i++) | |
1994 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1995 | |
b0e26485 VK |
1996 | /* remove and free each DAI */ |
1997 | for (i = 0; i < card->num_rtd; i++) | |
1998 | soc_remove_dai_link(card, i); | |
2eea392d | 1999 | |
b0e26485 | 2000 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2001 | |
b0e26485 VK |
2002 | /* remove the card */ |
2003 | if (card->remove) | |
e7361ec4 | 2004 | card->remove(card); |
a6052154 | 2005 | |
b0e26485 VK |
2006 | kfree(card->rtd); |
2007 | snd_card_free(card->snd_card); | |
2008 | return 0; | |
2009 | ||
2010 | } | |
2011 | ||
2012 | /* removes a socdev */ | |
2013 | static int soc_remove(struct platform_device *pdev) | |
2014 | { | |
2015 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2016 | |
c5af3a2e | 2017 | snd_soc_unregister_card(card); |
db2a4165 FM |
2018 | return 0; |
2019 | } | |
2020 | ||
6f8ab4ac | 2021 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2022 | { |
6f8ab4ac | 2023 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 2024 | int i; |
51737470 MB |
2025 | |
2026 | if (!card->instantiated) | |
416356fc | 2027 | return 0; |
51737470 MB |
2028 | |
2029 | /* Flush out pmdown_time work - we actually do want to run it | |
2030 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
2031 | for (i = 0; i < card->num_rtd; i++) { |
2032 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 2033 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 2034 | } |
51737470 | 2035 | |
f0fba2ad | 2036 | snd_soc_dapm_shutdown(card); |
416356fc MB |
2037 | |
2038 | return 0; | |
51737470 | 2039 | } |
6f8ab4ac | 2040 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2041 | |
6f8ab4ac MB |
2042 | const struct dev_pm_ops snd_soc_pm_ops = { |
2043 | .suspend = snd_soc_suspend, | |
2044 | .resume = snd_soc_resume, | |
2045 | .poweroff = snd_soc_poweroff, | |
416356fc MB |
2046 | }; |
2047 | ||
db2a4165 FM |
2048 | /* ASoC platform driver */ |
2049 | static struct platform_driver soc_driver = { | |
2050 | .driver = { | |
2051 | .name = "soc-audio", | |
8b45a209 | 2052 | .owner = THIS_MODULE, |
6f8ab4ac | 2053 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2054 | }, |
2055 | .probe = soc_probe, | |
2056 | .remove = soc_remove, | |
db2a4165 FM |
2057 | }; |
2058 | ||
2059 | /* create a new pcm */ | |
f0fba2ad LG |
2060 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
2061 | { | |
2062 | struct snd_soc_codec *codec = rtd->codec; | |
2063 | struct snd_soc_platform *platform = rtd->platform; | |
2064 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2065 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
2066 | struct snd_pcm *pcm; |
2067 | char new_name[64]; | |
2068 | int ret = 0, playback = 0, capture = 0; | |
2069 | ||
db2a4165 | 2070 | /* check client and interface hw capabilities */ |
40ca1142 | 2071 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 2072 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 2073 | |
f0fba2ad | 2074 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 2075 | playback = 1; |
f0fba2ad | 2076 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
2077 | capture = 1; |
2078 | ||
f0fba2ad LG |
2079 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
2080 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
2081 | num, playback, capture, &pcm); | |
db2a4165 | 2082 | if (ret < 0) { |
f0fba2ad | 2083 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
2084 | return ret; |
2085 | } | |
2086 | ||
f0fba2ad | 2087 | rtd->pcm = pcm; |
db2a4165 | 2088 | pcm->private_data = rtd; |
f0fba2ad LG |
2089 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
2090 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2091 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2092 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2093 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2094 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2095 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2096 | |
2097 | if (playback) | |
2098 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2099 | ||
2100 | if (capture) | |
2101 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2102 | ||
f0fba2ad | 2103 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2104 | if (ret < 0) { |
2105 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2106 | return ret; |
2107 | } | |
2108 | ||
f0fba2ad | 2109 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2110 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2111 | cpu_dai->name); | |
2112 | return ret; | |
2113 | } | |
2114 | ||
096e49d5 MB |
2115 | /** |
2116 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2117 | * | |
2118 | * @codec: CODEC to query. | |
2119 | * @reg: Register to query. | |
2120 | * | |
2121 | * Boolean function indiciating if a CODEC register is volatile. | |
2122 | */ | |
181e055e MB |
2123 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2124 | unsigned int reg) | |
096e49d5 | 2125 | { |
1500b7b5 DP |
2126 | if (codec->volatile_register) |
2127 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2128 | else |
2129 | return 0; | |
2130 | } | |
2131 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2132 | ||
db2a4165 FM |
2133 | /** |
2134 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2135 | * @codec: audio codec | |
2136 | * @ops: AC97 bus operations | |
2137 | * @num: AC97 codec number | |
2138 | * | |
2139 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2140 | */ | |
2141 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2142 | struct snd_ac97_bus_ops *ops, int num) | |
2143 | { | |
2144 | mutex_lock(&codec->mutex); | |
2145 | ||
2146 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2147 | if (codec->ac97 == NULL) { | |
2148 | mutex_unlock(&codec->mutex); | |
2149 | return -ENOMEM; | |
2150 | } | |
2151 | ||
2152 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2153 | if (codec->ac97->bus == NULL) { | |
2154 | kfree(codec->ac97); | |
2155 | codec->ac97 = NULL; | |
2156 | mutex_unlock(&codec->mutex); | |
2157 | return -ENOMEM; | |
2158 | } | |
2159 | ||
2160 | codec->ac97->bus->ops = ops; | |
2161 | codec->ac97->num = num; | |
0562f788 MW |
2162 | |
2163 | /* | |
2164 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2165 | * device will be registered with the device subsystem later on. | |
2166 | */ | |
2167 | codec->ac97_created = 1; | |
2168 | ||
db2a4165 FM |
2169 | mutex_unlock(&codec->mutex); |
2170 | return 0; | |
2171 | } | |
2172 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2173 | ||
2174 | /** | |
2175 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2176 | * @codec: audio codec | |
2177 | * | |
2178 | * Frees AC97 codec device resources. | |
2179 | */ | |
2180 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2181 | { | |
2182 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2183 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2184 | soc_unregister_ac97_dai_link(codec); | |
2185 | #endif | |
db2a4165 FM |
2186 | kfree(codec->ac97->bus); |
2187 | kfree(codec->ac97); | |
2188 | codec->ac97 = NULL; | |
0562f788 | 2189 | codec->ac97_created = 0; |
db2a4165 FM |
2190 | mutex_unlock(&codec->mutex); |
2191 | } | |
2192 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2193 | ||
c3753707 MB |
2194 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2195 | { | |
2196 | unsigned int ret; | |
2197 | ||
c3acec26 | 2198 | ret = codec->read(codec, reg); |
c3753707 | 2199 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2200 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2201 | |
2202 | return ret; | |
2203 | } | |
2204 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2205 | ||
2206 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2207 | unsigned int reg, unsigned int val) | |
2208 | { | |
2209 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2210 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2211 | return codec->write(codec, reg, val); |
c3753707 MB |
2212 | } |
2213 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2214 | ||
db2a4165 FM |
2215 | /** |
2216 | * snd_soc_update_bits - update codec register bits | |
2217 | * @codec: audio codec | |
2218 | * @reg: codec register | |
2219 | * @mask: register mask | |
2220 | * @value: new value | |
2221 | * | |
2222 | * Writes new register value. | |
2223 | * | |
180c329d | 2224 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2225 | */ |
2226 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2227 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2228 | { |
2229 | int change; | |
46f5822f | 2230 | unsigned int old, new; |
180c329d TT |
2231 | int ret; |
2232 | ||
2233 | ret = snd_soc_read(codec, reg); | |
2234 | if (ret < 0) | |
2235 | return ret; | |
db2a4165 | 2236 | |
180c329d | 2237 | old = ret; |
db2a4165 FM |
2238 | new = (old & ~mask) | value; |
2239 | change = old != new; | |
180c329d TT |
2240 | if (change) { |
2241 | ret = snd_soc_write(codec, reg, new); | |
2242 | if (ret < 0) | |
2243 | return ret; | |
2244 | } | |
db2a4165 | 2245 | |
db2a4165 FM |
2246 | return change; |
2247 | } | |
2248 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2249 | ||
6c508c62 EN |
2250 | /** |
2251 | * snd_soc_update_bits_locked - update codec register bits | |
2252 | * @codec: audio codec | |
2253 | * @reg: codec register | |
2254 | * @mask: register mask | |
2255 | * @value: new value | |
2256 | * | |
2257 | * Writes new register value, and takes the codec mutex. | |
2258 | * | |
2259 | * Returns 1 for change else 0. | |
2260 | */ | |
dd1b3d53 MB |
2261 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2262 | unsigned short reg, unsigned int mask, | |
2263 | unsigned int value) | |
6c508c62 EN |
2264 | { |
2265 | int change; | |
2266 | ||
2267 | mutex_lock(&codec->mutex); | |
2268 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2269 | mutex_unlock(&codec->mutex); | |
2270 | ||
2271 | return change; | |
2272 | } | |
dd1b3d53 | 2273 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2274 | |
db2a4165 FM |
2275 | /** |
2276 | * snd_soc_test_bits - test register for change | |
2277 | * @codec: audio codec | |
2278 | * @reg: codec register | |
2279 | * @mask: register mask | |
2280 | * @value: new value | |
2281 | * | |
2282 | * Tests a register with a new value and checks if the new value is | |
2283 | * different from the old value. | |
2284 | * | |
2285 | * Returns 1 for change else 0. | |
2286 | */ | |
2287 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2288 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2289 | { |
2290 | int change; | |
46f5822f | 2291 | unsigned int old, new; |
db2a4165 | 2292 | |
db2a4165 FM |
2293 | old = snd_soc_read(codec, reg); |
2294 | new = (old & ~mask) | value; | |
2295 | change = old != new; | |
db2a4165 FM |
2296 | |
2297 | return change; | |
2298 | } | |
2299 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2300 | ||
db2a4165 FM |
2301 | /** |
2302 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2303 | * @substream: the pcm substream | |
2304 | * @hw: the hardware parameters | |
2305 | * | |
2306 | * Sets the substream runtime hardware parameters. | |
2307 | */ | |
2308 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2309 | const struct snd_pcm_hardware *hw) | |
2310 | { | |
2311 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2312 | runtime->hw.info = hw->info; | |
2313 | runtime->hw.formats = hw->formats; | |
2314 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2315 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2316 | runtime->hw.periods_min = hw->periods_min; | |
2317 | runtime->hw.periods_max = hw->periods_max; | |
2318 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2319 | runtime->hw.fifo_size = hw->fifo_size; | |
2320 | return 0; | |
2321 | } | |
2322 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2323 | ||
2324 | /** | |
2325 | * snd_soc_cnew - create new control | |
2326 | * @_template: control template | |
2327 | * @data: control private data | |
ac11a2b3 | 2328 | * @long_name: control long name |
db2a4165 FM |
2329 | * |
2330 | * Create a new mixer control from a template control. | |
2331 | * | |
2332 | * Returns 0 for success, else error. | |
2333 | */ | |
2334 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2335 | void *data, char *long_name) | |
2336 | { | |
2337 | struct snd_kcontrol_new template; | |
2338 | ||
2339 | memcpy(&template, _template, sizeof(template)); | |
2340 | if (long_name) | |
2341 | template.name = long_name; | |
db2a4165 FM |
2342 | template.index = 0; |
2343 | ||
2344 | return snd_ctl_new1(&template, data); | |
2345 | } | |
2346 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2347 | ||
3e8e1952 IM |
2348 | /** |
2349 | * snd_soc_add_controls - add an array of controls to a codec. | |
2350 | * Convienience function to add a list of controls. Many codecs were | |
2351 | * duplicating this code. | |
2352 | * | |
2353 | * @codec: codec to add controls to | |
2354 | * @controls: array of controls to add | |
2355 | * @num_controls: number of elements in the array | |
2356 | * | |
2357 | * Return 0 for success, else error. | |
2358 | */ | |
2359 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2360 | const struct snd_kcontrol_new *controls, int num_controls) | |
2361 | { | |
f0fba2ad | 2362 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2363 | char prefixed_name[44], *name; |
3e8e1952 IM |
2364 | int err, i; |
2365 | ||
2366 | for (i = 0; i < num_controls; i++) { | |
2367 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2368 | if (codec->name_prefix) { |
2369 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2370 | codec->name_prefix, control->name); | |
2371 | name = prefixed_name; | |
2372 | } else { | |
2373 | name = control->name; | |
2374 | } | |
2375 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2376 | if (err < 0) { |
082100dc | 2377 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2378 | codec->name, name, err); |
3e8e1952 IM |
2379 | return err; |
2380 | } | |
2381 | } | |
2382 | ||
2383 | return 0; | |
2384 | } | |
2385 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2386 | ||
db2a4165 FM |
2387 | /** |
2388 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2389 | * @kcontrol: mixer control | |
2390 | * @uinfo: control element information | |
2391 | * | |
2392 | * Callback to provide information about a double enumerated | |
2393 | * mixer control. | |
2394 | * | |
2395 | * Returns 0 for success. | |
2396 | */ | |
2397 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2398 | struct snd_ctl_elem_info *uinfo) | |
2399 | { | |
2400 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2401 | ||
2402 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2403 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2404 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2405 | |
f8ba0b7b JS |
2406 | if (uinfo->value.enumerated.item > e->max - 1) |
2407 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2408 | strcpy(uinfo->value.enumerated.name, |
2409 | e->texts[uinfo->value.enumerated.item]); | |
2410 | return 0; | |
2411 | } | |
2412 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2413 | ||
2414 | /** | |
2415 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2416 | * @kcontrol: mixer control | |
ac11a2b3 | 2417 | * @ucontrol: control element information |
db2a4165 FM |
2418 | * |
2419 | * Callback to get the value of a double enumerated mixer. | |
2420 | * | |
2421 | * Returns 0 for success. | |
2422 | */ | |
2423 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2424 | struct snd_ctl_elem_value *ucontrol) | |
2425 | { | |
2426 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2427 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2428 | unsigned int val, bitmask; |
db2a4165 | 2429 | |
f8ba0b7b | 2430 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2431 | ; |
2432 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2433 | ucontrol->value.enumerated.item[0] |
2434 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2435 | if (e->shift_l != e->shift_r) |
2436 | ucontrol->value.enumerated.item[1] = | |
2437 | (val >> e->shift_r) & (bitmask - 1); | |
2438 | ||
2439 | return 0; | |
2440 | } | |
2441 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2442 | ||
2443 | /** | |
2444 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2445 | * @kcontrol: mixer control | |
ac11a2b3 | 2446 | * @ucontrol: control element information |
db2a4165 FM |
2447 | * |
2448 | * Callback to set the value of a double enumerated mixer. | |
2449 | * | |
2450 | * Returns 0 for success. | |
2451 | */ | |
2452 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2453 | struct snd_ctl_elem_value *ucontrol) | |
2454 | { | |
2455 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2456 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2457 | unsigned int val; |
2458 | unsigned int mask, bitmask; | |
db2a4165 | 2459 | |
f8ba0b7b | 2460 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2461 | ; |
f8ba0b7b | 2462 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2463 | return -EINVAL; |
2464 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2465 | mask = (bitmask - 1) << e->shift_l; | |
2466 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2467 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2468 | return -EINVAL; |
2469 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2470 | mask |= (bitmask - 1) << e->shift_r; | |
2471 | } | |
2472 | ||
6c508c62 | 2473 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2474 | } |
2475 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2476 | ||
2e72f8e3 PU |
2477 | /** |
2478 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2479 | * @kcontrol: mixer control | |
2480 | * @ucontrol: control element information | |
2481 | * | |
2482 | * Callback to get the value of a double semi enumerated mixer. | |
2483 | * | |
2484 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2485 | * used for handling bitfield coded enumeration for example. | |
2486 | * | |
2487 | * Returns 0 for success. | |
2488 | */ | |
2489 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2490 | struct snd_ctl_elem_value *ucontrol) | |
2491 | { | |
2492 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2493 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2494 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2495 | |
2496 | reg_val = snd_soc_read(codec, e->reg); | |
2497 | val = (reg_val >> e->shift_l) & e->mask; | |
2498 | for (mux = 0; mux < e->max; mux++) { | |
2499 | if (val == e->values[mux]) | |
2500 | break; | |
2501 | } | |
2502 | ucontrol->value.enumerated.item[0] = mux; | |
2503 | if (e->shift_l != e->shift_r) { | |
2504 | val = (reg_val >> e->shift_r) & e->mask; | |
2505 | for (mux = 0; mux < e->max; mux++) { | |
2506 | if (val == e->values[mux]) | |
2507 | break; | |
2508 | } | |
2509 | ucontrol->value.enumerated.item[1] = mux; | |
2510 | } | |
2511 | ||
2512 | return 0; | |
2513 | } | |
2514 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2515 | ||
2516 | /** | |
2517 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2518 | * @kcontrol: mixer control | |
2519 | * @ucontrol: control element information | |
2520 | * | |
2521 | * Callback to set the value of a double semi enumerated mixer. | |
2522 | * | |
2523 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2524 | * used for handling bitfield coded enumeration for example. | |
2525 | * | |
2526 | * Returns 0 for success. | |
2527 | */ | |
2528 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2529 | struct snd_ctl_elem_value *ucontrol) | |
2530 | { | |
2531 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2532 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2533 | unsigned int val; |
2534 | unsigned int mask; | |
2e72f8e3 PU |
2535 | |
2536 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2537 | return -EINVAL; | |
2538 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2539 | mask = e->mask << e->shift_l; | |
2540 | if (e->shift_l != e->shift_r) { | |
2541 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2542 | return -EINVAL; | |
2543 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2544 | mask |= e->mask << e->shift_r; | |
2545 | } | |
2546 | ||
6c508c62 | 2547 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2548 | } |
2549 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2550 | ||
db2a4165 FM |
2551 | /** |
2552 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2553 | * @kcontrol: mixer control | |
2554 | * @uinfo: control element information | |
2555 | * | |
2556 | * Callback to provide information about an external enumerated | |
2557 | * single mixer. | |
2558 | * | |
2559 | * Returns 0 for success. | |
2560 | */ | |
2561 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2562 | struct snd_ctl_elem_info *uinfo) | |
2563 | { | |
2564 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2565 | ||
2566 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2567 | uinfo->count = 1; | |
f8ba0b7b | 2568 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2569 | |
f8ba0b7b JS |
2570 | if (uinfo->value.enumerated.item > e->max - 1) |
2571 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2572 | strcpy(uinfo->value.enumerated.name, |
2573 | e->texts[uinfo->value.enumerated.item]); | |
2574 | return 0; | |
2575 | } | |
2576 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2577 | ||
2578 | /** | |
2579 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2580 | * @kcontrol: mixer control | |
2581 | * @uinfo: control element information | |
2582 | * | |
2583 | * Callback to provide information about a single external mixer control. | |
2584 | * | |
2585 | * Returns 0 for success. | |
2586 | */ | |
2587 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2588 | struct snd_ctl_elem_info *uinfo) | |
2589 | { | |
a7a4ac86 PZ |
2590 | int max = kcontrol->private_value; |
2591 | ||
fd5dfad9 | 2592 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2593 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2594 | else | |
2595 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2596 | |
db2a4165 FM |
2597 | uinfo->count = 1; |
2598 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2599 | uinfo->value.integer.max = max; |
db2a4165 FM |
2600 | return 0; |
2601 | } | |
2602 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2603 | ||
db2a4165 FM |
2604 | /** |
2605 | * snd_soc_info_volsw - single mixer info callback | |
2606 | * @kcontrol: mixer control | |
2607 | * @uinfo: control element information | |
2608 | * | |
2609 | * Callback to provide information about a single mixer control. | |
2610 | * | |
2611 | * Returns 0 for success. | |
2612 | */ | |
2613 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2614 | struct snd_ctl_elem_info *uinfo) | |
2615 | { | |
4eaa9819 JS |
2616 | struct soc_mixer_control *mc = |
2617 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2618 | int platform_max; |
762b8df7 | 2619 | unsigned int shift = mc->shift; |
815ecf8d | 2620 | unsigned int rshift = mc->rshift; |
db2a4165 | 2621 | |
d11bb4a9 PU |
2622 | if (!mc->platform_max) |
2623 | mc->platform_max = mc->max; | |
2624 | platform_max = mc->platform_max; | |
2625 | ||
2626 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2627 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2628 | else | |
2629 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2630 | ||
db2a4165 FM |
2631 | uinfo->count = shift == rshift ? 1 : 2; |
2632 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2633 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2634 | return 0; |
2635 | } | |
2636 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2637 | ||
2638 | /** | |
2639 | * snd_soc_get_volsw - single mixer get callback | |
2640 | * @kcontrol: mixer control | |
ac11a2b3 | 2641 | * @ucontrol: control element information |
db2a4165 FM |
2642 | * |
2643 | * Callback to get the value of a single mixer control. | |
2644 | * | |
2645 | * Returns 0 for success. | |
2646 | */ | |
2647 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2648 | struct snd_ctl_elem_value *ucontrol) | |
2649 | { | |
4eaa9819 JS |
2650 | struct soc_mixer_control *mc = |
2651 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2652 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2653 | unsigned int reg = mc->reg; |
2654 | unsigned int shift = mc->shift; | |
2655 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2656 | int max = mc->max; |
815ecf8d JS |
2657 | unsigned int mask = (1 << fls(max)) - 1; |
2658 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2659 | |
2660 | ucontrol->value.integer.value[0] = | |
2661 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2662 | if (shift != rshift) | |
2663 | ucontrol->value.integer.value[1] = | |
2664 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2665 | if (invert) { | |
2666 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2667 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2668 | if (shift != rshift) |
2669 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2670 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2671 | } |
2672 | ||
2673 | return 0; | |
2674 | } | |
2675 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2676 | ||
2677 | /** | |
2678 | * snd_soc_put_volsw - single mixer put callback | |
2679 | * @kcontrol: mixer control | |
ac11a2b3 | 2680 | * @ucontrol: control element information |
db2a4165 FM |
2681 | * |
2682 | * Callback to set the value of a single mixer control. | |
2683 | * | |
2684 | * Returns 0 for success. | |
2685 | */ | |
2686 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2687 | struct snd_ctl_elem_value *ucontrol) | |
2688 | { | |
4eaa9819 JS |
2689 | struct soc_mixer_control *mc = |
2690 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2691 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2692 | unsigned int reg = mc->reg; |
2693 | unsigned int shift = mc->shift; | |
2694 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2695 | int max = mc->max; |
815ecf8d JS |
2696 | unsigned int mask = (1 << fls(max)) - 1; |
2697 | unsigned int invert = mc->invert; | |
46f5822f | 2698 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2699 | |
2700 | val = (ucontrol->value.integer.value[0] & mask); | |
2701 | if (invert) | |
a7a4ac86 | 2702 | val = max - val; |
db2a4165 FM |
2703 | val_mask = mask << shift; |
2704 | val = val << shift; | |
2705 | if (shift != rshift) { | |
2706 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2707 | if (invert) | |
a7a4ac86 | 2708 | val2 = max - val2; |
db2a4165 FM |
2709 | val_mask |= mask << rshift; |
2710 | val |= val2 << rshift; | |
2711 | } | |
6c508c62 | 2712 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2713 | } |
2714 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2715 | ||
2716 | /** | |
2717 | * snd_soc_info_volsw_2r - double mixer info callback | |
2718 | * @kcontrol: mixer control | |
2719 | * @uinfo: control element information | |
2720 | * | |
2721 | * Callback to provide information about a double mixer control that | |
2722 | * spans 2 codec registers. | |
2723 | * | |
2724 | * Returns 0 for success. | |
2725 | */ | |
2726 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2727 | struct snd_ctl_elem_info *uinfo) | |
2728 | { | |
4eaa9819 JS |
2729 | struct soc_mixer_control *mc = |
2730 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2731 | int platform_max; |
a7a4ac86 | 2732 | |
d11bb4a9 PU |
2733 | if (!mc->platform_max) |
2734 | mc->platform_max = mc->max; | |
2735 | platform_max = mc->platform_max; | |
2736 | ||
2737 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2738 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2739 | else | |
2740 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2741 | |
db2a4165 FM |
2742 | uinfo->count = 2; |
2743 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2744 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2745 | return 0; |
2746 | } | |
2747 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2748 | ||
2749 | /** | |
2750 | * snd_soc_get_volsw_2r - double mixer get callback | |
2751 | * @kcontrol: mixer control | |
ac11a2b3 | 2752 | * @ucontrol: control element information |
db2a4165 FM |
2753 | * |
2754 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2755 | * | |
2756 | * Returns 0 for success. | |
2757 | */ | |
2758 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2759 | struct snd_ctl_elem_value *ucontrol) | |
2760 | { | |
4eaa9819 JS |
2761 | struct soc_mixer_control *mc = |
2762 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2763 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2764 | unsigned int reg = mc->reg; |
2765 | unsigned int reg2 = mc->rreg; | |
2766 | unsigned int shift = mc->shift; | |
4eaa9819 | 2767 | int max = mc->max; |
46f5822f | 2768 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2769 | unsigned int invert = mc->invert; |
db2a4165 FM |
2770 | |
2771 | ucontrol->value.integer.value[0] = | |
2772 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2773 | ucontrol->value.integer.value[1] = | |
2774 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2775 | if (invert) { | |
2776 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2777 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2778 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2779 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2780 | } |
2781 | ||
2782 | return 0; | |
2783 | } | |
2784 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2785 | ||
2786 | /** | |
2787 | * snd_soc_put_volsw_2r - double mixer set callback | |
2788 | * @kcontrol: mixer control | |
ac11a2b3 | 2789 | * @ucontrol: control element information |
db2a4165 FM |
2790 | * |
2791 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2792 | * | |
2793 | * Returns 0 for success. | |
2794 | */ | |
2795 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2796 | struct snd_ctl_elem_value *ucontrol) | |
2797 | { | |
4eaa9819 JS |
2798 | struct soc_mixer_control *mc = |
2799 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2800 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2801 | unsigned int reg = mc->reg; |
2802 | unsigned int reg2 = mc->rreg; | |
2803 | unsigned int shift = mc->shift; | |
4eaa9819 | 2804 | int max = mc->max; |
815ecf8d JS |
2805 | unsigned int mask = (1 << fls(max)) - 1; |
2806 | unsigned int invert = mc->invert; | |
db2a4165 | 2807 | int err; |
46f5822f | 2808 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2809 | |
2810 | val_mask = mask << shift; | |
2811 | val = (ucontrol->value.integer.value[0] & mask); | |
2812 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2813 | ||
2814 | if (invert) { | |
a7a4ac86 PZ |
2815 | val = max - val; |
2816 | val2 = max - val2; | |
db2a4165 FM |
2817 | } |
2818 | ||
2819 | val = val << shift; | |
2820 | val2 = val2 << shift; | |
2821 | ||
6c508c62 | 2822 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2823 | if (err < 0) |
db2a4165 FM |
2824 | return err; |
2825 | ||
6c508c62 | 2826 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2827 | return err; |
2828 | } | |
2829 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2830 | ||
e13ac2e9 MB |
2831 | /** |
2832 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2833 | * @kcontrol: mixer control | |
2834 | * @uinfo: control element information | |
2835 | * | |
2836 | * Callback to provide information about a signed mixer control. | |
2837 | * | |
2838 | * Returns 0 for success. | |
2839 | */ | |
2840 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2841 | struct snd_ctl_elem_info *uinfo) | |
2842 | { | |
4eaa9819 JS |
2843 | struct soc_mixer_control *mc = |
2844 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2845 | int platform_max; |
4eaa9819 | 2846 | int min = mc->min; |
e13ac2e9 | 2847 | |
d11bb4a9 PU |
2848 | if (!mc->platform_max) |
2849 | mc->platform_max = mc->max; | |
2850 | platform_max = mc->platform_max; | |
2851 | ||
e13ac2e9 MB |
2852 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2853 | uinfo->count = 2; | |
2854 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2855 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2856 | return 0; |
2857 | } | |
2858 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2859 | ||
2860 | /** | |
2861 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2862 | * @kcontrol: mixer control | |
ac11a2b3 | 2863 | * @ucontrol: control element information |
e13ac2e9 MB |
2864 | * |
2865 | * Callback to get the value of a signed mixer control. | |
2866 | * | |
2867 | * Returns 0 for success. | |
2868 | */ | |
2869 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2870 | struct snd_ctl_elem_value *ucontrol) | |
2871 | { | |
4eaa9819 JS |
2872 | struct soc_mixer_control *mc = |
2873 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2874 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2875 | unsigned int reg = mc->reg; |
4eaa9819 | 2876 | int min = mc->min; |
e13ac2e9 MB |
2877 | int val = snd_soc_read(codec, reg); |
2878 | ||
2879 | ucontrol->value.integer.value[0] = | |
2880 | ((signed char)(val & 0xff))-min; | |
2881 | ucontrol->value.integer.value[1] = | |
2882 | ((signed char)((val >> 8) & 0xff))-min; | |
2883 | return 0; | |
2884 | } | |
2885 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2886 | ||
2887 | /** | |
2888 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2889 | * @kcontrol: mixer control | |
ac11a2b3 | 2890 | * @ucontrol: control element information |
e13ac2e9 MB |
2891 | * |
2892 | * Callback to set the value of a signed mixer control. | |
2893 | * | |
2894 | * Returns 0 for success. | |
2895 | */ | |
2896 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2897 | struct snd_ctl_elem_value *ucontrol) | |
2898 | { | |
4eaa9819 JS |
2899 | struct soc_mixer_control *mc = |
2900 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2901 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2902 | unsigned int reg = mc->reg; |
4eaa9819 | 2903 | int min = mc->min; |
46f5822f | 2904 | unsigned int val; |
e13ac2e9 MB |
2905 | |
2906 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2907 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2908 | ||
6c508c62 | 2909 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2910 | } |
2911 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2912 | ||
637d3847 PU |
2913 | /** |
2914 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2915 | * | |
2916 | * @codec: where to look for the control | |
2917 | * @name: Name of the control | |
2918 | * @max: new maximum limit | |
2919 | * | |
2920 | * Return 0 for success, else error. | |
2921 | */ | |
2922 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2923 | const char *name, int max) | |
2924 | { | |
f0fba2ad | 2925 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2926 | struct snd_kcontrol *kctl; |
2927 | struct soc_mixer_control *mc; | |
2928 | int found = 0; | |
2929 | int ret = -EINVAL; | |
2930 | ||
2931 | /* Sanity check for name and max */ | |
2932 | if (unlikely(!name || max <= 0)) | |
2933 | return -EINVAL; | |
2934 | ||
2935 | list_for_each_entry(kctl, &card->controls, list) { | |
2936 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2937 | found = 1; | |
2938 | break; | |
2939 | } | |
2940 | } | |
2941 | if (found) { | |
2942 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2943 | if (max <= mc->max) { | |
d11bb4a9 | 2944 | mc->platform_max = max; |
637d3847 PU |
2945 | ret = 0; |
2946 | } | |
2947 | } | |
2948 | return ret; | |
2949 | } | |
2950 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2951 | ||
b6f4bb38 | 2952 | /** |
2953 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2954 | * mixer info callback | |
2955 | * @kcontrol: mixer control | |
2956 | * @uinfo: control element information | |
2957 | * | |
2958 | * Returns 0 for success. | |
2959 | */ | |
2960 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2961 | struct snd_ctl_elem_info *uinfo) | |
2962 | { | |
2963 | struct soc_mixer_control *mc = | |
2964 | (struct soc_mixer_control *)kcontrol->private_value; | |
2965 | int max = mc->max; | |
2966 | int min = mc->min; | |
2967 | ||
2968 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2969 | uinfo->count = 2; | |
2970 | uinfo->value.integer.min = 0; | |
2971 | uinfo->value.integer.max = max-min; | |
2972 | ||
2973 | return 0; | |
2974 | } | |
2975 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2976 | ||
2977 | /** | |
2978 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2979 | * mixer get callback | |
2980 | * @kcontrol: mixer control | |
2981 | * @uinfo: control element information | |
2982 | * | |
2983 | * Returns 0 for success. | |
2984 | */ | |
2985 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2986 | struct snd_ctl_elem_value *ucontrol) | |
2987 | { | |
2988 | struct soc_mixer_control *mc = | |
2989 | (struct soc_mixer_control *)kcontrol->private_value; | |
2990 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2991 | unsigned int mask = (1<<mc->shift)-1; | |
2992 | int min = mc->min; | |
2993 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2994 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2995 | ||
20630c7f SL |
2996 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2997 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2998 | return 0; |
2999 | } | |
3000 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
3001 | ||
3002 | /** | |
3003 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
3004 | * mixer put callback | |
3005 | * @kcontrol: mixer control | |
3006 | * @uinfo: control element information | |
3007 | * | |
3008 | * Returns 0 for success. | |
3009 | */ | |
3010 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3011 | struct snd_ctl_elem_value *ucontrol) | |
3012 | { | |
3013 | struct soc_mixer_control *mc = | |
3014 | (struct soc_mixer_control *)kcontrol->private_value; | |
3015 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3016 | unsigned int mask = (1<<mc->shift)-1; | |
3017 | int min = mc->min; | |
3018 | int ret; | |
3019 | unsigned int val, valr, oval, ovalr; | |
3020 | ||
3021 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
3022 | val &= mask; | |
3023 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
3024 | valr &= mask; | |
3025 | ||
3026 | oval = snd_soc_read(codec, mc->reg) & mask; | |
3027 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
3028 | ||
3029 | ret = 0; | |
3030 | if (oval != val) { | |
3031 | ret = snd_soc_write(codec, mc->reg, val); | |
3032 | if (ret < 0) | |
f1df5aec | 3033 | return ret; |
b6f4bb38 | 3034 | } |
3035 | if (ovalr != valr) { | |
3036 | ret = snd_soc_write(codec, mc->rreg, valr); | |
3037 | if (ret < 0) | |
f1df5aec | 3038 | return ret; |
b6f4bb38 | 3039 | } |
3040 | ||
3041 | return 0; | |
3042 | } | |
3043 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
3044 | ||
8c6529db LG |
3045 | /** |
3046 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3047 | * @dai: DAI | |
3048 | * @clk_id: DAI specific clock ID | |
3049 | * @freq: new clock frequency in Hz | |
3050 | * @dir: new clock direction - input/output. | |
3051 | * | |
3052 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3053 | */ | |
3054 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3055 | unsigned int freq, int dir) | |
3056 | { | |
f0fba2ad LG |
3057 | if (dai->driver && dai->driver->ops->set_sysclk) |
3058 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
3059 | else |
3060 | return -EINVAL; | |
3061 | } | |
3062 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3063 | ||
3064 | /** | |
3065 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3066 | * @dai: DAI | |
ac11a2b3 | 3067 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3068 | * @div: new clock divisor. |
3069 | * | |
3070 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3071 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3072 | * and frame clocks as low as possible to save system power. | |
3073 | */ | |
3074 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3075 | int div_id, int div) | |
3076 | { | |
f0fba2ad LG |
3077 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3078 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3079 | else |
3080 | return -EINVAL; | |
3081 | } | |
3082 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3083 | ||
3084 | /** | |
3085 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3086 | * @dai: DAI | |
3087 | * @pll_id: DAI specific PLL ID | |
85488037 | 3088 | * @source: DAI specific source for the PLL |
8c6529db LG |
3089 | * @freq_in: PLL input clock frequency in Hz |
3090 | * @freq_out: requested PLL output clock frequency in Hz | |
3091 | * | |
3092 | * Configures and enables PLL to generate output clock based on input clock. | |
3093 | */ | |
85488037 MB |
3094 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3095 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3096 | { |
f0fba2ad LG |
3097 | if (dai->driver && dai->driver->ops->set_pll) |
3098 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3099 | freq_in, freq_out); |
8c6529db LG |
3100 | else |
3101 | return -EINVAL; | |
3102 | } | |
3103 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3104 | ||
3105 | /** | |
3106 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3107 | * @dai: DAI | |
8c6529db LG |
3108 | * @fmt: SND_SOC_DAIFMT_ format value. |
3109 | * | |
3110 | * Configures the DAI hardware format and clocking. | |
3111 | */ | |
3112 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3113 | { | |
f0fba2ad LG |
3114 | if (dai->driver && dai->driver->ops->set_fmt) |
3115 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3116 | else |
3117 | return -EINVAL; | |
3118 | } | |
3119 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3120 | ||
3121 | /** | |
3122 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3123 | * @dai: DAI | |
a5479e38 DR |
3124 | * @tx_mask: bitmask representing active TX slots. |
3125 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3126 | * @slots: Number of slots in use. |
a5479e38 | 3127 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3128 | * |
3129 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3130 | * specific. | |
3131 | */ | |
3132 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3133 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3134 | { |
f0fba2ad LG |
3135 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3136 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3137 | slots, slot_width); |
8c6529db LG |
3138 | else |
3139 | return -EINVAL; | |
3140 | } | |
3141 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3142 | ||
472df3cb BS |
3143 | /** |
3144 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3145 | * @dai: DAI | |
3146 | * @tx_num: how many TX channels | |
3147 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3148 | * 0~num-1 uses | |
3149 | * @rx_num: how many RX channels | |
3150 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3151 | * 0~num-1 uses | |
3152 | * | |
3153 | * configure the relationship between channel number and TDM slot number. | |
3154 | */ | |
3155 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3156 | unsigned int tx_num, unsigned int *tx_slot, | |
3157 | unsigned int rx_num, unsigned int *rx_slot) | |
3158 | { | |
f0fba2ad LG |
3159 | if (dai->driver && dai->driver->ops->set_channel_map) |
3160 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3161 | rx_num, rx_slot); |
3162 | else | |
3163 | return -EINVAL; | |
3164 | } | |
3165 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3166 | ||
8c6529db LG |
3167 | /** |
3168 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3169 | * @dai: DAI | |
3170 | * @tristate: tristate enable | |
3171 | * | |
3172 | * Tristates the DAI so that others can use it. | |
3173 | */ | |
3174 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3175 | { | |
f0fba2ad LG |
3176 | if (dai->driver && dai->driver->ops->set_tristate) |
3177 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3178 | else |
3179 | return -EINVAL; | |
3180 | } | |
3181 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3182 | ||
3183 | /** | |
3184 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3185 | * @dai: DAI | |
3186 | * @mute: mute enable | |
3187 | * | |
3188 | * Mutes the DAI DAC. | |
3189 | */ | |
3190 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3191 | { | |
f0fba2ad LG |
3192 | if (dai->driver && dai->driver->ops->digital_mute) |
3193 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3194 | else |
3195 | return -EINVAL; | |
3196 | } | |
3197 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3198 | ||
c5af3a2e MB |
3199 | /** |
3200 | * snd_soc_register_card - Register a card with the ASoC core | |
3201 | * | |
ac11a2b3 | 3202 | * @card: Card to register |
c5af3a2e | 3203 | * |
c5af3a2e | 3204 | */ |
70a7ca34 | 3205 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3206 | { |
f0fba2ad LG |
3207 | int i; |
3208 | ||
c5af3a2e MB |
3209 | if (!card->name || !card->dev) |
3210 | return -EINVAL; | |
3211 | ||
111c6419 SW |
3212 | snd_soc_initialize_card_lists(card); |
3213 | ||
150dd2f8 VK |
3214 | soc_init_card_debugfs(card); |
3215 | ||
2eea392d JN |
3216 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3217 | (card->num_links + card->num_aux_devs), | |
3218 | GFP_KERNEL); | |
f0fba2ad LG |
3219 | if (card->rtd == NULL) |
3220 | return -ENOMEM; | |
2eea392d | 3221 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3222 | |
3223 | for (i = 0; i < card->num_links; i++) | |
3224 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3225 | ||
c5af3a2e MB |
3226 | INIT_LIST_HEAD(&card->list); |
3227 | card->instantiated = 0; | |
f0fba2ad | 3228 | mutex_init(&card->mutex); |
c5af3a2e MB |
3229 | |
3230 | mutex_lock(&client_mutex); | |
3231 | list_add(&card->list, &card_list); | |
435c5e25 | 3232 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3233 | mutex_unlock(&client_mutex); |
3234 | ||
3235 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3236 | ||
3237 | return 0; | |
3238 | } | |
70a7ca34 | 3239 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3240 | |
3241 | /** | |
3242 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3243 | * | |
ac11a2b3 | 3244 | * @card: Card to unregister |
c5af3a2e | 3245 | * |
c5af3a2e | 3246 | */ |
70a7ca34 | 3247 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3248 | { |
b0e26485 VK |
3249 | if (card->instantiated) |
3250 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3251 | mutex_lock(&client_mutex); |
3252 | list_del(&card->list); | |
3253 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3254 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3255 | ||
3256 | return 0; | |
3257 | } | |
70a7ca34 | 3258 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3259 | |
f0fba2ad LG |
3260 | /* |
3261 | * Simplify DAI link configuration by removing ".-1" from device names | |
3262 | * and sanitizing names. | |
3263 | */ | |
0b9a214a | 3264 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3265 | { |
3266 | char *found, name[NAME_SIZE]; | |
3267 | int id1, id2; | |
3268 | ||
3269 | if (dev_name(dev) == NULL) | |
3270 | return NULL; | |
3271 | ||
58818a77 | 3272 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3273 | |
3274 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3275 | found = strstr(name, dev->driver->name); | |
3276 | if (found) { | |
3277 | /* get ID */ | |
3278 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3279 | ||
3280 | /* discard ID from name if ID == -1 */ | |
3281 | if (*id == -1) | |
3282 | found[strlen(dev->driver->name)] = '\0'; | |
3283 | } | |
3284 | ||
3285 | } else { | |
3286 | /* I2C component devices are named "bus-addr" */ | |
3287 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3288 | char tmp[NAME_SIZE]; | |
3289 | ||
3290 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3291 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3292 | |
3293 | /* sanitize component name for DAI link creation */ | |
3294 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3295 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3296 | } else |
3297 | *id = 0; | |
3298 | } | |
3299 | ||
3300 | return kstrdup(name, GFP_KERNEL); | |
3301 | } | |
3302 | ||
3303 | /* | |
3304 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3305 | * any ".-1" and using the DAI name (instead of device name). | |
3306 | */ | |
3307 | static inline char *fmt_multiple_name(struct device *dev, | |
3308 | struct snd_soc_dai_driver *dai_drv) | |
3309 | { | |
3310 | if (dai_drv->name == NULL) { | |
3311 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3312 | dev_name(dev)); | |
3313 | return NULL; | |
3314 | } | |
3315 | ||
3316 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3317 | } | |
3318 | ||
9115171a MB |
3319 | /** |
3320 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3321 | * | |
ac11a2b3 | 3322 | * @dai: DAI to register |
9115171a | 3323 | */ |
f0fba2ad LG |
3324 | int snd_soc_register_dai(struct device *dev, |
3325 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3326 | { |
f0fba2ad LG |
3327 | struct snd_soc_dai *dai; |
3328 | ||
3329 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3330 | |
f0fba2ad LG |
3331 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3332 | if (dai == NULL) | |
3333 | return -ENOMEM; | |
9115171a | 3334 | |
f0fba2ad LG |
3335 | /* create DAI component name */ |
3336 | dai->name = fmt_single_name(dev, &dai->id); | |
3337 | if (dai->name == NULL) { | |
3338 | kfree(dai); | |
3339 | return -ENOMEM; | |
3340 | } | |
6335d055 | 3341 | |
f0fba2ad LG |
3342 | dai->dev = dev; |
3343 | dai->driver = dai_drv; | |
3344 | if (!dai->driver->ops) | |
3345 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3346 | |
3347 | mutex_lock(&client_mutex); | |
3348 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3349 | snd_soc_instantiate_cards(); |
9115171a MB |
3350 | mutex_unlock(&client_mutex); |
3351 | ||
3352 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3353 | ||
3354 | return 0; | |
3355 | } | |
3356 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3357 | ||
3358 | /** | |
3359 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3360 | * | |
ac11a2b3 | 3361 | * @dai: DAI to unregister |
9115171a | 3362 | */ |
f0fba2ad | 3363 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3364 | { |
f0fba2ad LG |
3365 | struct snd_soc_dai *dai; |
3366 | ||
3367 | list_for_each_entry(dai, &dai_list, list) { | |
3368 | if (dev == dai->dev) | |
3369 | goto found; | |
3370 | } | |
3371 | return; | |
3372 | ||
3373 | found: | |
9115171a MB |
3374 | mutex_lock(&client_mutex); |
3375 | list_del(&dai->list); | |
3376 | mutex_unlock(&client_mutex); | |
3377 | ||
3378 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3379 | kfree(dai->name); |
3380 | kfree(dai); | |
9115171a MB |
3381 | } |
3382 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3383 | ||
3384 | /** | |
3385 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3386 | * | |
ac11a2b3 MB |
3387 | * @dai: Array of DAIs to register |
3388 | * @count: Number of DAIs | |
9115171a | 3389 | */ |
f0fba2ad LG |
3390 | int snd_soc_register_dais(struct device *dev, |
3391 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3392 | { |
f0fba2ad LG |
3393 | struct snd_soc_dai *dai; |
3394 | int i, ret = 0; | |
3395 | ||
720ffa4c | 3396 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3397 | |
3398 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3399 | |
3400 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3401 | if (dai == NULL) { |
3402 | ret = -ENOMEM; | |
3403 | goto err; | |
3404 | } | |
f0fba2ad LG |
3405 | |
3406 | /* create DAI component name */ | |
3407 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3408 | if (dai->name == NULL) { | |
3409 | kfree(dai); | |
3410 | ret = -EINVAL; | |
9115171a | 3411 | goto err; |
f0fba2ad LG |
3412 | } |
3413 | ||
3414 | dai->dev = dev; | |
f0fba2ad | 3415 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3416 | if (dai->driver->id) |
3417 | dai->id = dai->driver->id; | |
3418 | else | |
3419 | dai->id = i; | |
f0fba2ad LG |
3420 | if (!dai->driver->ops) |
3421 | dai->driver->ops = &null_dai_ops; | |
3422 | ||
3423 | mutex_lock(&client_mutex); | |
3424 | list_add(&dai->list, &dai_list); | |
3425 | mutex_unlock(&client_mutex); | |
3426 | ||
3427 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3428 | } |
3429 | ||
1dcb4f38 | 3430 | mutex_lock(&client_mutex); |
f0fba2ad | 3431 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3432 | mutex_unlock(&client_mutex); |
9115171a MB |
3433 | return 0; |
3434 | ||
3435 | err: | |
3436 | for (i--; i >= 0; i--) | |
f0fba2ad | 3437 | snd_soc_unregister_dai(dev); |
9115171a MB |
3438 | |
3439 | return ret; | |
3440 | } | |
3441 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3442 | ||
3443 | /** | |
3444 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3445 | * | |
ac11a2b3 MB |
3446 | * @dai: Array of DAIs to unregister |
3447 | * @count: Number of DAIs | |
9115171a | 3448 | */ |
f0fba2ad | 3449 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3450 | { |
3451 | int i; | |
3452 | ||
3453 | for (i = 0; i < count; i++) | |
f0fba2ad | 3454 | snd_soc_unregister_dai(dev); |
9115171a MB |
3455 | } |
3456 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3457 | ||
12a48a8c MB |
3458 | /** |
3459 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3460 | * | |
ac11a2b3 | 3461 | * @platform: platform to register |
12a48a8c | 3462 | */ |
f0fba2ad LG |
3463 | int snd_soc_register_platform(struct device *dev, |
3464 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3465 | { |
f0fba2ad LG |
3466 | struct snd_soc_platform *platform; |
3467 | ||
3468 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3469 | ||
3470 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3471 | if (platform == NULL) | |
3472 | return -ENOMEM; | |
3473 | ||
3474 | /* create platform component name */ | |
3475 | platform->name = fmt_single_name(dev, &platform->id); | |
3476 | if (platform->name == NULL) { | |
3477 | kfree(platform); | |
3478 | return -ENOMEM; | |
3479 | } | |
12a48a8c | 3480 | |
f0fba2ad LG |
3481 | platform->dev = dev; |
3482 | platform->driver = platform_drv; | |
12a48a8c MB |
3483 | |
3484 | mutex_lock(&client_mutex); | |
3485 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3486 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3487 | mutex_unlock(&client_mutex); |
3488 | ||
3489 | pr_debug("Registered platform '%s'\n", platform->name); | |
3490 | ||
3491 | return 0; | |
3492 | } | |
3493 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3494 | ||
3495 | /** | |
3496 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3497 | * | |
ac11a2b3 | 3498 | * @platform: platform to unregister |
12a48a8c | 3499 | */ |
f0fba2ad | 3500 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3501 | { |
f0fba2ad LG |
3502 | struct snd_soc_platform *platform; |
3503 | ||
3504 | list_for_each_entry(platform, &platform_list, list) { | |
3505 | if (dev == platform->dev) | |
3506 | goto found; | |
3507 | } | |
3508 | return; | |
3509 | ||
3510 | found: | |
12a48a8c MB |
3511 | mutex_lock(&client_mutex); |
3512 | list_del(&platform->list); | |
3513 | mutex_unlock(&client_mutex); | |
3514 | ||
3515 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3516 | kfree(platform->name); |
3517 | kfree(platform); | |
12a48a8c MB |
3518 | } |
3519 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3520 | ||
151ab22c MB |
3521 | static u64 codec_format_map[] = { |
3522 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3523 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3524 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3525 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3526 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3527 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3528 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3529 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3530 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3531 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3532 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3533 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3534 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3535 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3536 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3537 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3538 | }; | |
3539 | ||
3540 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3541 | * the endianness of the data but we're using the CPU format | |
3542 | * definitions which do need to include endianness so we ensure that | |
3543 | * codec DAIs always have both big and little endian variants set. | |
3544 | */ | |
3545 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3546 | { | |
3547 | int i; | |
3548 | ||
3549 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3550 | if (stream->formats & codec_format_map[i]) | |
3551 | stream->formats |= codec_format_map[i]; | |
3552 | } | |
3553 | ||
0d0cf00a MB |
3554 | /** |
3555 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3556 | * | |
ac11a2b3 | 3557 | * @codec: codec to register |
0d0cf00a | 3558 | */ |
f0fba2ad | 3559 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3560 | const struct snd_soc_codec_driver *codec_drv, |
3561 | struct snd_soc_dai_driver *dai_drv, | |
3562 | int num_dai) | |
0d0cf00a | 3563 | { |
3335ddca | 3564 | size_t reg_size; |
f0fba2ad LG |
3565 | struct snd_soc_codec *codec; |
3566 | int ret, i; | |
151ab22c | 3567 | |
f0fba2ad LG |
3568 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3569 | ||
3570 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3571 | if (codec == NULL) | |
3572 | return -ENOMEM; | |
0d0cf00a | 3573 | |
f0fba2ad LG |
3574 | /* create CODEC component name */ |
3575 | codec->name = fmt_single_name(dev, &codec->id); | |
3576 | if (codec->name == NULL) { | |
3577 | kfree(codec); | |
3578 | return -ENOMEM; | |
3579 | } | |
3580 | ||
23bbce34 DP |
3581 | if (codec_drv->compress_type) |
3582 | codec->compress_type = codec_drv->compress_type; | |
3583 | else | |
3584 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3585 | ||
c3acec26 MB |
3586 | codec->write = codec_drv->write; |
3587 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3588 | codec->volatile_register = codec_drv->volatile_register; |
3589 | codec->readable_register = codec_drv->readable_register; | |
ce6120cc LG |
3590 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3591 | codec->dapm.dev = dev; | |
3592 | codec->dapm.codec = codec; | |
474b62d6 | 3593 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3594 | codec->dev = dev; |
3595 | codec->driver = codec_drv; | |
3596 | codec->num_dai = num_dai; | |
3597 | mutex_init(&codec->mutex); | |
ce6120cc | 3598 | |
f0fba2ad LG |
3599 | /* allocate CODEC register cache */ |
3600 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3601 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3602 | codec->reg_size = reg_size; |
3335ddca DP |
3603 | /* it is necessary to make a copy of the default register cache |
3604 | * because in the case of using a compression type that requires | |
3605 | * the default register cache to be marked as __devinitconst the | |
3606 | * kernel might have freed the array by the time we initialize | |
3607 | * the cache. | |
3608 | */ | |
2aa86323 DP |
3609 | if (codec_drv->reg_cache_default) { |
3610 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3611 | reg_size, GFP_KERNEL); | |
3612 | if (!codec->reg_def_copy) { | |
3613 | ret = -ENOMEM; | |
3614 | goto fail; | |
3615 | } | |
f0fba2ad | 3616 | } |
151ab22c MB |
3617 | } |
3618 | ||
1500b7b5 DP |
3619 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3620 | if (!codec->volatile_register) | |
3621 | codec->volatile_register = snd_soc_default_volatile_register; | |
3622 | if (!codec->readable_register) | |
3623 | codec->readable_register = snd_soc_default_readable_register; | |
3624 | } | |
3625 | ||
f0fba2ad LG |
3626 | for (i = 0; i < num_dai; i++) { |
3627 | fixup_codec_formats(&dai_drv[i].playback); | |
3628 | fixup_codec_formats(&dai_drv[i].capture); | |
3629 | } | |
3630 | ||
26b01ccd MB |
3631 | /* register any DAIs */ |
3632 | if (num_dai) { | |
3633 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3634 | if (ret < 0) | |
fdf0f54d | 3635 | goto fail; |
26b01ccd | 3636 | } |
f0fba2ad | 3637 | |
0d0cf00a MB |
3638 | mutex_lock(&client_mutex); |
3639 | list_add(&codec->list, &codec_list); | |
3640 | snd_soc_instantiate_cards(); | |
3641 | mutex_unlock(&client_mutex); | |
3642 | ||
3643 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3644 | return 0; |
f0fba2ad | 3645 | |
fdf0f54d | 3646 | fail: |
3335ddca DP |
3647 | kfree(codec->reg_def_copy); |
3648 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3649 | kfree(codec->name); |
3650 | kfree(codec); | |
3651 | return ret; | |
0d0cf00a MB |
3652 | } |
3653 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3654 | ||
3655 | /** | |
3656 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3657 | * | |
ac11a2b3 | 3658 | * @codec: codec to unregister |
0d0cf00a | 3659 | */ |
f0fba2ad | 3660 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3661 | { |
f0fba2ad LG |
3662 | struct snd_soc_codec *codec; |
3663 | int i; | |
3664 | ||
3665 | list_for_each_entry(codec, &codec_list, list) { | |
3666 | if (dev == codec->dev) | |
3667 | goto found; | |
3668 | } | |
3669 | return; | |
3670 | ||
3671 | found: | |
26b01ccd MB |
3672 | if (codec->num_dai) |
3673 | for (i = 0; i < codec->num_dai; i++) | |
3674 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3675 | |
0d0cf00a MB |
3676 | mutex_lock(&client_mutex); |
3677 | list_del(&codec->list); | |
3678 | mutex_unlock(&client_mutex); | |
3679 | ||
3680 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3681 | |
7a30a3db | 3682 | snd_soc_cache_exit(codec); |
3335ddca | 3683 | kfree(codec->reg_def_copy); |
1aafcd4d | 3684 | kfree(codec->name); |
f0fba2ad | 3685 | kfree(codec); |
0d0cf00a MB |
3686 | } |
3687 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3688 | ||
c9b3a40f | 3689 | static int __init snd_soc_init(void) |
db2a4165 | 3690 | { |
384c89e2 | 3691 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3692 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3693 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3694 | printk(KERN_WARNING |
3695 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3696 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3697 | } |
c3c5a19a | 3698 | |
8a9dab1a | 3699 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3700 | &codec_list_fops)) |
3701 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3702 | ||
8a9dab1a | 3703 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3704 | &dai_list_fops)) |
3705 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3706 | |
8a9dab1a | 3707 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3708 | &platform_list_fops)) |
3709 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3710 | #endif |
3711 | ||
db2a4165 FM |
3712 | return platform_driver_register(&soc_driver); |
3713 | } | |
4abe8e16 | 3714 | module_init(snd_soc_init); |
db2a4165 | 3715 | |
7d8c16a6 | 3716 | static void __exit snd_soc_exit(void) |
db2a4165 | 3717 | { |
384c89e2 | 3718 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3719 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3720 | #endif |
3ff3f64b | 3721 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3722 | } |
db2a4165 FM |
3723 | module_exit(snd_soc_exit); |
3724 | ||
3725 | /* Module information */ | |
d331124d | 3726 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3727 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3728 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3729 | MODULE_ALIAS("platform:soc-audio"); |