Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 | 35 | #include <sound/core.h> |
3028eb8c | 36 | #include <sound/jack.h> |
db2a4165 FM |
37 | #include <sound/pcm.h> |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/soc.h> | |
db2a4165 FM |
40 | #include <sound/initval.h> |
41 | ||
a8b1d34f MB |
42 | #define CREATE_TRACE_POINTS |
43 | #include <trace/events/asoc.h> | |
44 | ||
f0fba2ad LG |
45 | #define NAME_SIZE 32 |
46 | ||
db2a4165 | 47 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
48 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e MB |
55 | static DEFINE_MUTEX(client_mutex); |
56 | static LIST_HEAD(card_list); | |
9115171a | 57 | static LIST_HEAD(dai_list); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
c5af3a2e | 60 | |
f0fba2ad | 61 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
2bc9a81e DP |
72 | /* returns the minimum number of bytes needed to represent |
73 | * a particular given value */ | |
74 | static int min_bytes_needed(unsigned long val) | |
75 | { | |
76 | int c = 0; | |
77 | int i; | |
78 | ||
79 | for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c) | |
80 | if (val & (1UL << i)) | |
81 | break; | |
82 | c = (sizeof val * 8) - c; | |
83 | if (!c || (c % 8)) | |
84 | c = (c + 8) / 8; | |
85 | else | |
86 | c /= 8; | |
87 | return c; | |
88 | } | |
89 | ||
13fd179f DP |
90 | /* fill buf which is 'len' bytes with a formatted |
91 | * string of the form 'reg: value\n' */ | |
92 | static int format_register_str(struct snd_soc_codec *codec, | |
93 | unsigned int reg, char *buf, size_t len) | |
94 | { | |
00b317a4 SW |
95 | int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
96 | int regsize = codec->driver->reg_word_size * 2; | |
13fd179f DP |
97 | int ret; |
98 | char tmpbuf[len + 1]; | |
99 | char regbuf[regsize + 1]; | |
100 | ||
101 | /* since tmpbuf is allocated on the stack, warn the callers if they | |
102 | * try to abuse this function */ | |
103 | WARN_ON(len > 63); | |
104 | ||
105 | /* +2 for ': ' and + 1 for '\n' */ | |
106 | if (wordsize + regsize + 2 + 1 != len) | |
107 | return -EINVAL; | |
108 | ||
109 | ret = snd_soc_read(codec , reg); | |
110 | if (ret < 0) { | |
111 | memset(regbuf, 'X', regsize); | |
112 | regbuf[regsize] = '\0'; | |
113 | } else { | |
114 | snprintf(regbuf, regsize + 1, "%.*x", regsize, ret); | |
115 | } | |
116 | ||
117 | /* prepare the buffer */ | |
118 | snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf); | |
119 | /* copy it back to the caller without the '\0' */ | |
120 | memcpy(buf, tmpbuf, len); | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
2624d5fa | 125 | /* codec register dump */ |
13fd179f DP |
126 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf, |
127 | size_t count, loff_t pos) | |
2624d5fa | 128 | { |
13fd179f | 129 | int i, step = 1; |
2bc9a81e | 130 | int wordsize, regsize; |
13fd179f DP |
131 | int len; |
132 | size_t total = 0; | |
133 | loff_t p = 0; | |
2bc9a81e | 134 | |
00b317a4 SW |
135 | wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2; |
136 | regsize = codec->driver->reg_word_size * 2; | |
2624d5fa | 137 | |
13fd179f DP |
138 | len = wordsize + regsize + 2 + 1; |
139 | ||
f0fba2ad | 140 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
141 | return 0; |
142 | ||
f0fba2ad LG |
143 | if (codec->driver->reg_cache_step) |
144 | step = codec->driver->reg_cache_step; | |
2624d5fa | 145 | |
f0fba2ad | 146 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 147 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa | 148 | continue; |
f0fba2ad LG |
149 | if (codec->driver->display_register) { |
150 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 151 | PAGE_SIZE - count, i); |
5164d74d | 152 | } else { |
13fd179f DP |
153 | /* only support larger than PAGE_SIZE bytes debugfs |
154 | * entries for the default case */ | |
155 | if (p >= pos) { | |
156 | if (total + len >= count - 1) | |
157 | break; | |
158 | format_register_str(codec, i, buf + total, len); | |
159 | total += len; | |
160 | } | |
161 | p += len; | |
5164d74d | 162 | } |
2624d5fa MB |
163 | } |
164 | ||
13fd179f | 165 | total = min(total, count - 1); |
2624d5fa | 166 | |
13fd179f | 167 | return total; |
2624d5fa | 168 | } |
13fd179f | 169 | |
2624d5fa MB |
170 | static ssize_t codec_reg_show(struct device *dev, |
171 | struct device_attribute *attr, char *buf) | |
172 | { | |
f0fba2ad LG |
173 | struct snd_soc_pcm_runtime *rtd = |
174 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
175 | ||
13fd179f | 176 | return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0); |
2624d5fa MB |
177 | } |
178 | ||
179 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
180 | ||
dbe21408 MB |
181 | static ssize_t pmdown_time_show(struct device *dev, |
182 | struct device_attribute *attr, char *buf) | |
183 | { | |
f0fba2ad LG |
184 | struct snd_soc_pcm_runtime *rtd = |
185 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 186 | |
f0fba2ad | 187 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
188 | } |
189 | ||
190 | static ssize_t pmdown_time_set(struct device *dev, | |
191 | struct device_attribute *attr, | |
192 | const char *buf, size_t count) | |
193 | { | |
f0fba2ad LG |
194 | struct snd_soc_pcm_runtime *rtd = |
195 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 196 | int ret; |
dbe21408 | 197 | |
c593b520 MB |
198 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
199 | if (ret) | |
200 | return ret; | |
dbe21408 MB |
201 | |
202 | return count; | |
203 | } | |
204 | ||
205 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
206 | ||
2624d5fa MB |
207 | #ifdef CONFIG_DEBUG_FS |
208 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
209 | { | |
210 | file->private_data = inode->i_private; | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
13fd179f | 215 | size_t count, loff_t *ppos) |
2624d5fa MB |
216 | { |
217 | ssize_t ret; | |
218 | struct snd_soc_codec *codec = file->private_data; | |
13fd179f DP |
219 | char *buf; |
220 | ||
221 | if (*ppos < 0 || !count) | |
222 | return -EINVAL; | |
223 | ||
224 | buf = kmalloc(count, GFP_KERNEL); | |
2624d5fa MB |
225 | if (!buf) |
226 | return -ENOMEM; | |
13fd179f DP |
227 | |
228 | ret = soc_codec_reg_show(codec, buf, count, *ppos); | |
229 | if (ret >= 0) { | |
230 | if (copy_to_user(user_buf, buf, ret)) { | |
231 | kfree(buf); | |
232 | return -EFAULT; | |
233 | } | |
234 | *ppos += ret; | |
235 | } | |
236 | ||
2624d5fa MB |
237 | kfree(buf); |
238 | return ret; | |
239 | } | |
240 | ||
241 | static ssize_t codec_reg_write_file(struct file *file, | |
242 | const char __user *user_buf, size_t count, loff_t *ppos) | |
243 | { | |
244 | char buf[32]; | |
245 | int buf_size; | |
246 | char *start = buf; | |
247 | unsigned long reg, value; | |
248 | int step = 1; | |
249 | struct snd_soc_codec *codec = file->private_data; | |
250 | ||
251 | buf_size = min(count, (sizeof(buf)-1)); | |
252 | if (copy_from_user(buf, user_buf, buf_size)) | |
253 | return -EFAULT; | |
254 | buf[buf_size] = 0; | |
255 | ||
f0fba2ad LG |
256 | if (codec->driver->reg_cache_step) |
257 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
258 | |
259 | while (*start == ' ') | |
260 | start++; | |
261 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
262 | while (*start == ' ') |
263 | start++; | |
264 | if (strict_strtoul(start, 16, &value)) | |
265 | return -EINVAL; | |
0d51a9cb MB |
266 | |
267 | /* Userspace has been fiddling around behind the kernel's back */ | |
268 | add_taint(TAINT_USER); | |
269 | ||
e4f078d8 | 270 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
271 | return buf_size; |
272 | } | |
273 | ||
274 | static const struct file_operations codec_reg_fops = { | |
275 | .open = codec_reg_open_file, | |
276 | .read = codec_reg_read_file, | |
277 | .write = codec_reg_write_file, | |
6038f373 | 278 | .llseek = default_llseek, |
2624d5fa MB |
279 | }; |
280 | ||
281 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
282 | { | |
d6ce4cf3 JN |
283 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
284 | ||
285 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
286 | debugfs_card_root); | |
2624d5fa MB |
287 | if (!codec->debugfs_codec_root) { |
288 | printk(KERN_WARNING | |
289 | "ASoC: Failed to create codec debugfs directory\n"); | |
290 | return; | |
291 | } | |
292 | ||
aaee8ef1 MB |
293 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
294 | &codec->cache_sync); | |
295 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
296 | &codec->cache_only); | |
297 | ||
2624d5fa MB |
298 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
299 | codec->debugfs_codec_root, | |
300 | codec, &codec_reg_fops); | |
301 | if (!codec->debugfs_reg) | |
302 | printk(KERN_WARNING | |
303 | "ASoC: Failed to create codec register debugfs file\n"); | |
304 | ||
ce6120cc | 305 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 306 | codec->debugfs_codec_root); |
ce6120cc | 307 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
308 | printk(KERN_WARNING |
309 | "Failed to create DAPM debugfs directory\n"); | |
310 | ||
ce6120cc | 311 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
312 | } |
313 | ||
314 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
315 | { | |
316 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
317 | } | |
318 | ||
c3c5a19a MB |
319 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
320 | size_t count, loff_t *ppos) | |
321 | { | |
322 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 323 | ssize_t len, ret = 0; |
c3c5a19a MB |
324 | struct snd_soc_codec *codec; |
325 | ||
326 | if (!buf) | |
327 | return -ENOMEM; | |
328 | ||
2b194f9d MB |
329 | list_for_each_entry(codec, &codec_list, list) { |
330 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
331 | codec->name); | |
332 | if (len >= 0) | |
333 | ret += len; | |
334 | if (ret > PAGE_SIZE) { | |
335 | ret = PAGE_SIZE; | |
336 | break; | |
337 | } | |
338 | } | |
c3c5a19a MB |
339 | |
340 | if (ret >= 0) | |
341 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
342 | ||
343 | kfree(buf); | |
344 | ||
345 | return ret; | |
346 | } | |
347 | ||
348 | static const struct file_operations codec_list_fops = { | |
349 | .read = codec_list_read_file, | |
350 | .llseek = default_llseek,/* read accesses f_pos */ | |
351 | }; | |
352 | ||
f3208780 MB |
353 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
354 | size_t count, loff_t *ppos) | |
355 | { | |
356 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 357 | ssize_t len, ret = 0; |
f3208780 MB |
358 | struct snd_soc_dai *dai; |
359 | ||
360 | if (!buf) | |
361 | return -ENOMEM; | |
362 | ||
2b194f9d MB |
363 | list_for_each_entry(dai, &dai_list, list) { |
364 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
365 | if (len >= 0) | |
366 | ret += len; | |
367 | if (ret > PAGE_SIZE) { | |
368 | ret = PAGE_SIZE; | |
369 | break; | |
370 | } | |
371 | } | |
f3208780 | 372 | |
2b194f9d | 373 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
374 | |
375 | kfree(buf); | |
376 | ||
377 | return ret; | |
378 | } | |
379 | ||
380 | static const struct file_operations dai_list_fops = { | |
381 | .read = dai_list_read_file, | |
382 | .llseek = default_llseek,/* read accesses f_pos */ | |
383 | }; | |
384 | ||
19c7ac27 MB |
385 | static ssize_t platform_list_read_file(struct file *file, |
386 | char __user *user_buf, | |
387 | size_t count, loff_t *ppos) | |
388 | { | |
389 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 390 | ssize_t len, ret = 0; |
19c7ac27 MB |
391 | struct snd_soc_platform *platform; |
392 | ||
393 | if (!buf) | |
394 | return -ENOMEM; | |
395 | ||
2b194f9d MB |
396 | list_for_each_entry(platform, &platform_list, list) { |
397 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
398 | platform->name); | |
399 | if (len >= 0) | |
400 | ret += len; | |
401 | if (ret > PAGE_SIZE) { | |
402 | ret = PAGE_SIZE; | |
403 | break; | |
404 | } | |
405 | } | |
19c7ac27 | 406 | |
2b194f9d | 407 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
408 | |
409 | kfree(buf); | |
410 | ||
411 | return ret; | |
412 | } | |
413 | ||
414 | static const struct file_operations platform_list_fops = { | |
415 | .read = platform_list_read_file, | |
416 | .llseek = default_llseek,/* read accesses f_pos */ | |
417 | }; | |
418 | ||
a6052154 JN |
419 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
420 | { | |
421 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 422 | snd_soc_debugfs_root); |
3a45b867 | 423 | if (!card->debugfs_card_root) { |
a6052154 JN |
424 | dev_warn(card->dev, |
425 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
426 | return; |
427 | } | |
428 | ||
429 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
430 | card->debugfs_card_root, | |
431 | &card->pop_time); | |
432 | if (!card->debugfs_pop_time) | |
433 | dev_warn(card->dev, | |
434 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
435 | } |
436 | ||
437 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
438 | { | |
439 | debugfs_remove_recursive(card->debugfs_card_root); | |
440 | } | |
441 | ||
2624d5fa MB |
442 | #else |
443 | ||
444 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
445 | { | |
446 | } | |
447 | ||
448 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
449 | { | |
450 | } | |
b95fccbc AL |
451 | |
452 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
453 | { | |
454 | } | |
455 | ||
456 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
457 | { | |
458 | } | |
2624d5fa MB |
459 | #endif |
460 | ||
db2a4165 FM |
461 | #ifdef CONFIG_SND_SOC_AC97_BUS |
462 | /* unregister ac97 codec */ | |
463 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
464 | { | |
465 | if (codec->ac97->dev.bus) | |
466 | device_unregister(&codec->ac97->dev); | |
467 | return 0; | |
468 | } | |
469 | ||
470 | /* stop no dev release warning */ | |
471 | static void soc_ac97_device_release(struct device *dev){} | |
472 | ||
473 | /* register ac97 codec to bus */ | |
474 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
475 | { | |
476 | int err; | |
477 | ||
478 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 479 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
480 | codec->ac97->dev.release = soc_ac97_device_release; |
481 | ||
bb072bf0 | 482 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 483 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
484 | err = device_register(&codec->ac97->dev); |
485 | if (err < 0) { | |
486 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
487 | codec->ac97->dev.bus = NULL; | |
488 | return err; | |
489 | } | |
490 | return 0; | |
491 | } | |
492 | #endif | |
493 | ||
06f409d7 MB |
494 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
495 | { | |
496 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
497 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
498 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
499 | int ret; |
500 | ||
4f333b20 MB |
501 | if (!codec_dai->driver->symmetric_rates && |
502 | !cpu_dai->driver->symmetric_rates && | |
503 | !rtd->dai_link->symmetric_rates) | |
504 | return 0; | |
505 | ||
c4ef8786 MB |
506 | /* This can happen if multiple streams are starting simultaneously - |
507 | * the second can need to get its constraints before the first has | |
508 | * picked a rate. Complain and allow the application to carry on. | |
509 | */ | |
510 | if (!rtd->rate) { | |
511 | dev_warn(&rtd->dev, | |
512 | "Not enforcing symmetric_rates due to race\n"); | |
513 | return 0; | |
514 | } | |
515 | ||
4f333b20 MB |
516 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", rtd->rate); |
517 | ||
518 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
519 | SNDRV_PCM_HW_PARAM_RATE, | |
520 | rtd->rate, rtd->rate); | |
521 | if (ret < 0) { | |
522 | dev_err(&rtd->dev, | |
523 | "Unable to apply rate symmetry constraint: %d\n", ret); | |
524 | return ret; | |
06f409d7 MB |
525 | } |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
db2a4165 FM |
530 | /* |
531 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
532 | * then initialized and any private data can be allocated. This also calls | |
533 | * startup for the cpu DAI, platform, machine and codec DAI. | |
534 | */ | |
535 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
536 | { | |
537 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 538 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
539 | struct snd_soc_platform *platform = rtd->platform; |
540 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
541 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
542 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
543 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
544 | int ret = 0; |
545 | ||
546 | mutex_lock(&pcm_mutex); | |
547 | ||
548 | /* startup the audio subsystem */ | |
f0fba2ad LG |
549 | if (cpu_dai->driver->ops->startup) { |
550 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
551 | if (ret < 0) { |
552 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 553 | cpu_dai->name); |
db2a4165 FM |
554 | goto out; |
555 | } | |
556 | } | |
557 | ||
f0fba2ad LG |
558 | if (platform->driver->ops->open) { |
559 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
560 | if (ret < 0) { |
561 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
562 | goto platform_err; | |
563 | } | |
564 | } | |
565 | ||
f0fba2ad LG |
566 | if (codec_dai->driver->ops->startup) { |
567 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 568 | if (ret < 0) { |
cb666e5b LG |
569 | printk(KERN_ERR "asoc: can't open codec %s\n", |
570 | codec_dai->name); | |
571 | goto codec_dai_err; | |
db2a4165 FM |
572 | } |
573 | } | |
574 | ||
f0fba2ad LG |
575 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
576 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 577 | if (ret < 0) { |
f0fba2ad | 578 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 579 | goto machine_err; |
db2a4165 FM |
580 | } |
581 | } | |
582 | ||
a00f90f9 | 583 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
584 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
585 | runtime->hw.rate_min = | |
f0fba2ad LG |
586 | max(codec_dai_drv->playback.rate_min, |
587 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 588 | runtime->hw.rate_max = |
f0fba2ad LG |
589 | min(codec_dai_drv->playback.rate_max, |
590 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 591 | runtime->hw.channels_min = |
f0fba2ad LG |
592 | max(codec_dai_drv->playback.channels_min, |
593 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 594 | runtime->hw.channels_max = |
f0fba2ad LG |
595 | min(codec_dai_drv->playback.channels_max, |
596 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 597 | runtime->hw.formats = |
f0fba2ad | 598 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 599 | runtime->hw.rates = |
f0fba2ad LG |
600 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
601 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 602 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
603 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
604 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 605 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 606 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
607 | } else { |
608 | runtime->hw.rate_min = | |
f0fba2ad LG |
609 | max(codec_dai_drv->capture.rate_min, |
610 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 611 | runtime->hw.rate_max = |
f0fba2ad LG |
612 | min(codec_dai_drv->capture.rate_max, |
613 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 614 | runtime->hw.channels_min = |
f0fba2ad LG |
615 | max(codec_dai_drv->capture.channels_min, |
616 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 617 | runtime->hw.channels_max = |
f0fba2ad LG |
618 | min(codec_dai_drv->capture.channels_max, |
619 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 620 | runtime->hw.formats = |
f0fba2ad | 621 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 622 | runtime->hw.rates = |
f0fba2ad LG |
623 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
624 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 625 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
626 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
627 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 628 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 629 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
630 | } |
631 | ||
632 | snd_pcm_limit_hw_rates(runtime); | |
633 | if (!runtime->hw.rates) { | |
634 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 635 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 636 | goto config_err; |
db2a4165 FM |
637 | } |
638 | if (!runtime->hw.formats) { | |
639 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 640 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 641 | goto config_err; |
db2a4165 FM |
642 | } |
643 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
644 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 645 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 646 | goto config_err; |
db2a4165 FM |
647 | } |
648 | ||
06f409d7 MB |
649 | /* Symmetry only applies if we've already got an active stream. */ |
650 | if (cpu_dai->active || codec_dai->active) { | |
651 | ret = soc_pcm_apply_symmetry(substream); | |
652 | if (ret != 0) | |
bb1c0478 | 653 | goto config_err; |
06f409d7 MB |
654 | } |
655 | ||
f0fba2ad LG |
656 | pr_debug("asoc: %s <-> %s info:\n", |
657 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
658 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
659 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
660 | runtime->hw.channels_max); | |
661 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
662 | runtime->hw.rate_max); | |
db2a4165 | 663 | |
14dc5734 | 664 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
665 | cpu_dai->playback_active++; |
666 | codec_dai->playback_active++; | |
14dc5734 | 667 | } else { |
f0fba2ad LG |
668 | cpu_dai->capture_active++; |
669 | codec_dai->capture_active++; | |
14dc5734 JB |
670 | } |
671 | cpu_dai->active++; | |
672 | codec_dai->active++; | |
f0fba2ad | 673 | rtd->codec->active++; |
db2a4165 FM |
674 | mutex_unlock(&pcm_mutex); |
675 | return 0; | |
676 | ||
bb1c0478 | 677 | config_err: |
f0fba2ad LG |
678 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
679 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 680 | |
bb1c0478 | 681 | machine_err: |
f0fba2ad LG |
682 | if (codec_dai->driver->ops->shutdown) |
683 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 684 | |
cb666e5b | 685 | codec_dai_err: |
f0fba2ad LG |
686 | if (platform->driver->ops->close) |
687 | platform->driver->ops->close(substream); | |
db2a4165 FM |
688 | |
689 | platform_err: | |
f0fba2ad LG |
690 | if (cpu_dai->driver->ops->shutdown) |
691 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
692 | out: |
693 | mutex_unlock(&pcm_mutex); | |
694 | return ret; | |
695 | } | |
696 | ||
697 | /* | |
3a4fa0a2 | 698 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
699 | * This is to ensure there are no pops or clicks in between any music tracks |
700 | * due to DAPM power cycling. | |
701 | */ | |
4484bb2e | 702 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 703 | { |
f0fba2ad LG |
704 | struct snd_soc_pcm_runtime *rtd = |
705 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
706 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
707 | |
708 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
709 | |
710 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
711 | codec_dai->driver->playback.stream_name, | |
712 | codec_dai->playback_active ? "active" : "inactive", | |
713 | codec_dai->pop_wait ? "yes" : "no"); | |
714 | ||
715 | /* are we waiting on this codec DAI stream */ | |
716 | if (codec_dai->pop_wait == 1) { | |
717 | codec_dai->pop_wait = 0; | |
718 | snd_soc_dapm_stream_event(rtd, | |
719 | codec_dai->driver->playback.stream_name, | |
720 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 721 | } |
f0fba2ad | 722 | |
db2a4165 FM |
723 | mutex_unlock(&pcm_mutex); |
724 | } | |
725 | ||
726 | /* | |
727 | * Called by ALSA when a PCM substream is closed. Private data can be | |
728 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
729 | * shutdown. | |
730 | */ | |
731 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
732 | { | |
733 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
734 | struct snd_soc_platform *platform = rtd->platform; |
735 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
736 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
737 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
738 | |
739 | mutex_lock(&pcm_mutex); | |
740 | ||
14dc5734 | 741 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
742 | cpu_dai->playback_active--; |
743 | codec_dai->playback_active--; | |
14dc5734 | 744 | } else { |
f0fba2ad LG |
745 | cpu_dai->capture_active--; |
746 | codec_dai->capture_active--; | |
db2a4165 | 747 | } |
14dc5734 JB |
748 | |
749 | cpu_dai->active--; | |
750 | codec_dai->active--; | |
db2a4165 FM |
751 | codec->active--; |
752 | ||
6010b2da MB |
753 | /* Muting the DAC suppresses artifacts caused during digital |
754 | * shutdown, for example from stopping clocks. | |
755 | */ | |
756 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
757 | snd_soc_dai_digital_mute(codec_dai, 1); | |
758 | ||
f0fba2ad LG |
759 | if (cpu_dai->driver->ops->shutdown) |
760 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 761 | |
f0fba2ad LG |
762 | if (codec_dai->driver->ops->shutdown) |
763 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 764 | |
f0fba2ad LG |
765 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
766 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 767 | |
f0fba2ad LG |
768 | if (platform->driver->ops->close) |
769 | platform->driver->ops->close(substream); | |
770 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
771 | |
772 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
773 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 774 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
775 | schedule_delayed_work(&rtd->delayed_work, |
776 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
777 | } else { |
778 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
779 | snd_soc_dapm_stream_event(rtd, |
780 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 781 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
782 | } |
783 | ||
784 | mutex_unlock(&pcm_mutex); | |
785 | return 0; | |
786 | } | |
787 | ||
788 | /* | |
789 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
790 | * rate, etc. This function is non atomic and can be called multiple times, | |
791 | * it can refer to the runtime info. | |
792 | */ | |
793 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
794 | { | |
795 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
796 | struct snd_soc_platform *platform = rtd->platform; |
797 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
798 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
799 | int ret = 0; |
800 | ||
801 | mutex_lock(&pcm_mutex); | |
cb666e5b | 802 | |
f0fba2ad LG |
803 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
804 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
805 | if (ret < 0) { |
806 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
807 | goto out; | |
808 | } | |
809 | } | |
810 | ||
f0fba2ad LG |
811 | if (platform->driver->ops->prepare) { |
812 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
813 | if (ret < 0) { |
814 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 815 | goto out; |
a71a468a | 816 | } |
db2a4165 FM |
817 | } |
818 | ||
f0fba2ad LG |
819 | if (codec_dai->driver->ops->prepare) { |
820 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
821 | if (ret < 0) { |
822 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 823 | goto out; |
a71a468a | 824 | } |
db2a4165 FM |
825 | } |
826 | ||
f0fba2ad LG |
827 | if (cpu_dai->driver->ops->prepare) { |
828 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
829 | if (ret < 0) { |
830 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
831 | goto out; | |
832 | } | |
833 | } | |
db2a4165 | 834 | |
d45f6219 MB |
835 | /* cancel any delayed stream shutdown that is pending */ |
836 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
837 | codec_dai->pop_wait) { | |
838 | codec_dai->pop_wait = 0; | |
f0fba2ad | 839 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 840 | } |
db2a4165 | 841 | |
452c5eaa | 842 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
843 | snd_soc_dapm_stream_event(rtd, |
844 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
845 | SND_SOC_DAPM_STREAM_START); |
846 | else | |
f0fba2ad LG |
847 | snd_soc_dapm_stream_event(rtd, |
848 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 849 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 850 | |
452c5eaa | 851 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
852 | |
853 | out: | |
854 | mutex_unlock(&pcm_mutex); | |
855 | return ret; | |
856 | } | |
857 | ||
858 | /* | |
859 | * Called by ALSA when the hardware params are set by application. This | |
860 | * function can also be called multiple times and can allocate buffers | |
861 | * (using snd_pcm_lib_* ). It's non-atomic. | |
862 | */ | |
863 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
864 | struct snd_pcm_hw_params *params) | |
865 | { | |
866 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
867 | struct snd_soc_platform *platform = rtd->platform; |
868 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
869 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
870 | int ret = 0; |
871 | ||
872 | mutex_lock(&pcm_mutex); | |
873 | ||
f0fba2ad LG |
874 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
875 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
876 | if (ret < 0) { |
877 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 878 | goto out; |
cb666e5b | 879 | } |
db2a4165 FM |
880 | } |
881 | ||
f0fba2ad LG |
882 | if (codec_dai->driver->ops->hw_params) { |
883 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
884 | if (ret < 0) { |
885 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
886 | codec_dai->name); |
887 | goto codec_err; | |
db2a4165 FM |
888 | } |
889 | } | |
890 | ||
f0fba2ad LG |
891 | if (cpu_dai->driver->ops->hw_params) { |
892 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 893 | if (ret < 0) { |
3ff3f64b | 894 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 895 | cpu_dai->name); |
db2a4165 FM |
896 | goto interface_err; |
897 | } | |
898 | } | |
899 | ||
f0fba2ad LG |
900 | if (platform->driver->ops->hw_params) { |
901 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 902 | if (ret < 0) { |
3ff3f64b | 903 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
904 | platform->name); |
905 | goto platform_err; | |
906 | } | |
907 | } | |
908 | ||
f0fba2ad | 909 | rtd->rate = params_rate(params); |
06f409d7 | 910 | |
db2a4165 FM |
911 | out: |
912 | mutex_unlock(&pcm_mutex); | |
913 | return ret; | |
914 | ||
db2a4165 | 915 | platform_err: |
f0fba2ad LG |
916 | if (cpu_dai->driver->ops->hw_free) |
917 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
918 | |
919 | interface_err: | |
f0fba2ad LG |
920 | if (codec_dai->driver->ops->hw_free) |
921 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
922 | |
923 | codec_err: | |
f0fba2ad LG |
924 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
925 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
926 | |
927 | mutex_unlock(&pcm_mutex); | |
928 | return ret; | |
929 | } | |
930 | ||
931 | /* | |
a00f90f9 | 932 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
933 | */ |
934 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
935 | { | |
936 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
937 | struct snd_soc_platform *platform = rtd->platform; |
938 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
939 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
940 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
941 | |
942 | mutex_lock(&pcm_mutex); | |
943 | ||
944 | /* apply codec digital mute */ | |
8c6529db LG |
945 | if (!codec->active) |
946 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
947 | |
948 | /* free any machine hw params */ | |
f0fba2ad LG |
949 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
950 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
951 | |
952 | /* free any DMA resources */ | |
f0fba2ad LG |
953 | if (platform->driver->ops->hw_free) |
954 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 955 | |
a00f90f9 | 956 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
957 | if (codec_dai->driver->ops->hw_free) |
958 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 959 | |
f0fba2ad LG |
960 | if (cpu_dai->driver->ops->hw_free) |
961 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
962 | |
963 | mutex_unlock(&pcm_mutex); | |
964 | return 0; | |
965 | } | |
966 | ||
967 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
968 | { | |
969 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
970 | struct snd_soc_platform *platform = rtd->platform; |
971 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
972 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
973 | int ret; |
974 | ||
f0fba2ad LG |
975 | if (codec_dai->driver->ops->trigger) { |
976 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
977 | if (ret < 0) |
978 | return ret; | |
979 | } | |
980 | ||
f0fba2ad LG |
981 | if (platform->driver->ops->trigger) { |
982 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
983 | if (ret < 0) |
984 | return ret; | |
985 | } | |
986 | ||
f0fba2ad LG |
987 | if (cpu_dai->driver->ops->trigger) { |
988 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
989 | if (ret < 0) |
990 | return ret; | |
991 | } | |
992 | return 0; | |
993 | } | |
994 | ||
377b6f62 PU |
995 | /* |
996 | * soc level wrapper for pointer callback | |
258020d0 PU |
997 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
998 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
999 | */ |
1000 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1001 | { | |
1002 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
1003 | struct snd_soc_platform *platform = rtd->platform; |
1004 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1005 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 1006 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 1007 | snd_pcm_uframes_t offset = 0; |
258020d0 | 1008 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 1009 | |
f0fba2ad LG |
1010 | if (platform->driver->ops->pointer) |
1011 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 1012 | |
f0fba2ad LG |
1013 | if (cpu_dai->driver->ops->delay) |
1014 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 1015 | |
f0fba2ad LG |
1016 | if (codec_dai->driver->ops->delay) |
1017 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 1018 | |
f0fba2ad LG |
1019 | if (platform->driver->delay) |
1020 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
1021 | |
1022 | runtime->delay = delay; | |
1023 | ||
377b6f62 PU |
1024 | return offset; |
1025 | } | |
1026 | ||
db2a4165 FM |
1027 | /* ASoC PCM operations */ |
1028 | static struct snd_pcm_ops soc_pcm_ops = { | |
1029 | .open = soc_pcm_open, | |
1030 | .close = soc_codec_close, | |
1031 | .hw_params = soc_pcm_hw_params, | |
1032 | .hw_free = soc_pcm_hw_free, | |
1033 | .prepare = soc_pcm_prepare, | |
1034 | .trigger = soc_pcm_trigger, | |
377b6f62 | 1035 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
1036 | }; |
1037 | ||
6f8ab4ac | 1038 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 1039 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 1040 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 1041 | { |
6f8ab4ac | 1042 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 1043 | struct snd_soc_codec *codec; |
db2a4165 FM |
1044 | int i; |
1045 | ||
e3509ff0 DM |
1046 | /* If the initialization of this soc device failed, there is no codec |
1047 | * associated with it. Just bail out in this case. | |
1048 | */ | |
f0fba2ad | 1049 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
1050 | return 0; |
1051 | ||
6ed25978 AG |
1052 | /* Due to the resume being scheduled into a workqueue we could |
1053 | * suspend before that's finished - wait for it to complete. | |
1054 | */ | |
f0fba2ad LG |
1055 | snd_power_lock(card->snd_card); |
1056 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
1057 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
1058 | |
1059 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 1060 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 1061 | |
a00f90f9 | 1062 | /* mute any active DACs */ |
f0fba2ad LG |
1063 | for (i = 0; i < card->num_rtd; i++) { |
1064 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1065 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1066 | |
f0fba2ad | 1067 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1068 | continue; |
1069 | ||
f0fba2ad LG |
1070 | if (drv->ops->digital_mute && dai->playback_active) |
1071 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1072 | } |
1073 | ||
4ccab3e7 | 1074 | /* suspend all pcms */ |
f0fba2ad LG |
1075 | for (i = 0; i < card->num_rtd; i++) { |
1076 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1077 | continue; |
1078 | ||
f0fba2ad | 1079 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1080 | } |
4ccab3e7 | 1081 | |
87506549 | 1082 | if (card->suspend_pre) |
70b2ac12 | 1083 | card->suspend_pre(card); |
db2a4165 | 1084 | |
f0fba2ad LG |
1085 | for (i = 0; i < card->num_rtd; i++) { |
1086 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1087 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1088 | |
f0fba2ad | 1089 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1090 | continue; |
1091 | ||
f0fba2ad LG |
1092 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1093 | cpu_dai->driver->suspend(cpu_dai); | |
1094 | if (platform->driver->suspend && !platform->suspended) { | |
1095 | platform->driver->suspend(cpu_dai); | |
1096 | platform->suspended = 1; | |
1097 | } | |
db2a4165 FM |
1098 | } |
1099 | ||
1100 | /* close any waiting streams and save state */ | |
f0fba2ad | 1101 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1102 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1103 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1104 | } |
db2a4165 | 1105 | |
f0fba2ad LG |
1106 | for (i = 0; i < card->num_rtd; i++) { |
1107 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1108 | |
f0fba2ad | 1109 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1110 | continue; |
1111 | ||
f0fba2ad LG |
1112 | if (driver->playback.stream_name != NULL) |
1113 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1114 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1115 | |
1116 | if (driver->capture.stream_name != NULL) | |
1117 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1118 | SND_SOC_DAPM_STREAM_SUSPEND); |
1119 | } | |
1120 | ||
f0fba2ad | 1121 | /* suspend all CODECs */ |
2eea392d | 1122 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1123 | /* If there are paths active then the CODEC will be held with |
1124 | * bias _ON and should not be suspended. */ | |
1125 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1126 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1127 | case SND_SOC_BIAS_STANDBY: |
1128 | case SND_SOC_BIAS_OFF: | |
1129 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1130 | codec->suspended = 1; | |
1131 | break; | |
1132 | default: | |
1133 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1134 | break; | |
1135 | } | |
1547aba9 MB |
1136 | } |
1137 | } | |
db2a4165 | 1138 | |
f0fba2ad LG |
1139 | for (i = 0; i < card->num_rtd; i++) { |
1140 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1141 | |
f0fba2ad | 1142 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1143 | continue; |
1144 | ||
f0fba2ad LG |
1145 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1146 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1147 | } |
1148 | ||
87506549 | 1149 | if (card->suspend_post) |
70b2ac12 | 1150 | card->suspend_post(card); |
db2a4165 FM |
1151 | |
1152 | return 0; | |
1153 | } | |
6f8ab4ac | 1154 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 1155 | |
6ed25978 AG |
1156 | /* deferred resume work, so resume can complete before we finished |
1157 | * setting our codec back up, which can be very slow on I2C | |
1158 | */ | |
1159 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1160 | { |
f0fba2ad LG |
1161 | struct snd_soc_card *card = |
1162 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 1163 | struct snd_soc_codec *codec; |
db2a4165 FM |
1164 | int i; |
1165 | ||
6ed25978 AG |
1166 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1167 | * so userspace apps are blocked from touching us | |
1168 | */ | |
1169 | ||
f0fba2ad | 1170 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1171 | |
9949788b | 1172 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1173 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1174 | |
87506549 | 1175 | if (card->resume_pre) |
70b2ac12 | 1176 | card->resume_pre(card); |
db2a4165 | 1177 | |
f0fba2ad LG |
1178 | /* resume AC97 DAIs */ |
1179 | for (i = 0; i < card->num_rtd; i++) { | |
1180 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1181 | |
f0fba2ad | 1182 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1183 | continue; |
1184 | ||
f0fba2ad LG |
1185 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1186 | cpu_dai->driver->resume(cpu_dai); | |
1187 | } | |
1188 | ||
2eea392d | 1189 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1190 | /* If the CODEC was idle over suspend then it will have been |
1191 | * left with bias OFF or STANDBY and suspended so we must now | |
1192 | * resume. Otherwise the suspend was suppressed. | |
1193 | */ | |
1194 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1195 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1196 | case SND_SOC_BIAS_STANDBY: |
1197 | case SND_SOC_BIAS_OFF: | |
1198 | codec->driver->resume(codec); | |
1199 | codec->suspended = 0; | |
1200 | break; | |
1201 | default: | |
1202 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1203 | break; | |
1204 | } | |
1547aba9 MB |
1205 | } |
1206 | } | |
db2a4165 | 1207 | |
f0fba2ad LG |
1208 | for (i = 0; i < card->num_rtd; i++) { |
1209 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1210 | |
f0fba2ad | 1211 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1212 | continue; |
1213 | ||
f0fba2ad LG |
1214 | if (driver->playback.stream_name != NULL) |
1215 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1216 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1217 | |
1218 | if (driver->capture.stream_name != NULL) | |
1219 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1220 | SND_SOC_DAPM_STREAM_RESUME); |
1221 | } | |
1222 | ||
3ff3f64b | 1223 | /* unmute any active DACs */ |
f0fba2ad LG |
1224 | for (i = 0; i < card->num_rtd; i++) { |
1225 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1226 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1227 | |
f0fba2ad | 1228 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1229 | continue; |
1230 | ||
f0fba2ad LG |
1231 | if (drv->ops->digital_mute && dai->playback_active) |
1232 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1233 | } |
1234 | ||
f0fba2ad LG |
1235 | for (i = 0; i < card->num_rtd; i++) { |
1236 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1237 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1238 | |
f0fba2ad | 1239 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1240 | continue; |
1241 | ||
f0fba2ad LG |
1242 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1243 | cpu_dai->driver->resume(cpu_dai); | |
1244 | if (platform->driver->resume && platform->suspended) { | |
1245 | platform->driver->resume(cpu_dai); | |
1246 | platform->suspended = 0; | |
1247 | } | |
db2a4165 FM |
1248 | } |
1249 | ||
87506549 | 1250 | if (card->resume_post) |
70b2ac12 | 1251 | card->resume_post(card); |
db2a4165 | 1252 | |
f0fba2ad | 1253 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1254 | |
1255 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1256 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1257 | } |
1258 | ||
1259 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 1260 | int snd_soc_resume(struct device *dev) |
6ed25978 | 1261 | { |
6f8ab4ac | 1262 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1263 | int i; |
b9dd94a8 | 1264 | |
64ab9baa MB |
1265 | /* AC97 devices might have other drivers hanging off them so |
1266 | * need to resume immediately. Other drivers don't have that | |
1267 | * problem and may take a substantial amount of time to resume | |
1268 | * due to I/O costs and anti-pop so handle them out of line. | |
1269 | */ | |
f0fba2ad LG |
1270 | for (i = 0; i < card->num_rtd; i++) { |
1271 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1272 | if (cpu_dai->driver->ac97_control) { | |
1273 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1274 | soc_resume_deferred(&card->deferred_resume_work); | |
1275 | } else { | |
1276 | dev_dbg(dev, "Scheduling resume work\n"); | |
1277 | if (!schedule_work(&card->deferred_resume_work)) | |
1278 | dev_err(dev, "resume work item may be lost\n"); | |
1279 | } | |
64ab9baa | 1280 | } |
6ed25978 | 1281 | |
db2a4165 FM |
1282 | return 0; |
1283 | } | |
6f8ab4ac | 1284 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 1285 | #else |
6f8ab4ac MB |
1286 | #define snd_soc_suspend NULL |
1287 | #define snd_soc_resume NULL | |
db2a4165 FM |
1288 | #endif |
1289 | ||
02a06d30 BS |
1290 | static struct snd_soc_dai_ops null_dai_ops = { |
1291 | }; | |
1292 | ||
f0fba2ad | 1293 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1294 | { |
f0fba2ad LG |
1295 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1296 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1297 | struct snd_soc_codec *codec; |
435c5e25 | 1298 | struct snd_soc_platform *platform; |
f0fba2ad | 1299 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1300 | |
f0fba2ad LG |
1301 | if (rtd->complete) |
1302 | return 1; | |
1303 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1304 | |
f0fba2ad LG |
1305 | /* do we already have the CPU DAI for this link ? */ |
1306 | if (rtd->cpu_dai) { | |
1307 | goto find_codec; | |
1308 | } | |
1309 | /* no, then find CPU DAI from registered DAIs*/ | |
1310 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1311 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1312 | ||
1313 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1314 | return -ENODEV; | |
1315 | ||
1316 | rtd->cpu_dai = cpu_dai; | |
1317 | goto find_codec; | |
435c5e25 | 1318 | } |
435c5e25 | 1319 | } |
f0fba2ad LG |
1320 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1321 | dai_link->cpu_dai_name); | |
6308419a | 1322 | |
f0fba2ad LG |
1323 | find_codec: |
1324 | /* do we already have the CODEC for this link ? */ | |
1325 | if (rtd->codec) { | |
1326 | goto find_platform; | |
1327 | } | |
1328 | ||
1329 | /* no, then find CODEC from registered CODECs*/ | |
1330 | list_for_each_entry(codec, &codec_list, list) { | |
1331 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1332 | rtd->codec = codec; | |
1333 | ||
f0fba2ad LG |
1334 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1335 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1336 | if (codec->dev == codec_dai->dev && | |
1337 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1338 | rtd->codec_dai = codec_dai; | |
1339 | goto find_platform; | |
1340 | } | |
435c5e25 | 1341 | } |
f0fba2ad LG |
1342 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1343 | dai_link->codec_dai_name); | |
1344 | ||
1345 | goto find_platform; | |
435c5e25 | 1346 | } |
f0fba2ad LG |
1347 | } |
1348 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1349 | dai_link->codec_name); | |
6b05eda6 | 1350 | |
f0fba2ad LG |
1351 | find_platform: |
1352 | /* do we already have the CODEC DAI for this link ? */ | |
1353 | if (rtd->platform) { | |
1354 | goto out; | |
c5af3a2e | 1355 | } |
f0fba2ad LG |
1356 | /* no, then find CPU DAI from registered DAIs*/ |
1357 | list_for_each_entry(platform, &platform_list, list) { | |
1358 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1359 | rtd->platform = platform; |
1360 | goto out; | |
1361 | } | |
02a06d30 BS |
1362 | } |
1363 | ||
f0fba2ad LG |
1364 | dev_dbg(card->dev, "platform %s not registered\n", |
1365 | dai_link->platform_name); | |
1366 | return 0; | |
1367 | ||
1368 | out: | |
1369 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1370 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1371 | rtd->complete = 1; | |
1372 | card->num_rtd++; | |
1373 | } | |
1374 | return 1; | |
1375 | } | |
1376 | ||
589c3563 JN |
1377 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1378 | { | |
1379 | int err; | |
1380 | ||
1381 | if (codec->driver->remove) { | |
1382 | err = codec->driver->remove(codec); | |
1383 | if (err < 0) | |
1384 | dev_err(codec->dev, | |
1385 | "asoc: failed to remove %s: %d\n", | |
1386 | codec->name, err); | |
1387 | } | |
1388 | ||
1389 | /* Make sure all DAPM widgets are freed */ | |
1390 | snd_soc_dapm_free(&codec->dapm); | |
1391 | ||
1392 | soc_cleanup_codec_debugfs(codec); | |
1393 | codec->probed = 0; | |
1394 | list_del(&codec->card_list); | |
1395 | module_put(codec->dev->driver->owner); | |
1396 | } | |
1397 | ||
f0fba2ad LG |
1398 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1399 | { | |
1400 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1401 | struct snd_soc_codec *codec = rtd->codec; | |
1402 | struct snd_soc_platform *platform = rtd->platform; | |
1403 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1404 | int err; | |
1405 | ||
1406 | /* unregister the rtd device */ | |
1407 | if (rtd->dev_registered) { | |
1408 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1409 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1410 | device_unregister(&rtd->dev); |
1411 | rtd->dev_registered = 0; | |
1412 | } | |
1413 | ||
1414 | /* remove the CODEC DAI */ | |
1415 | if (codec_dai && codec_dai->probed) { | |
1416 | if (codec_dai->driver->remove) { | |
1417 | err = codec_dai->driver->remove(codec_dai); | |
1418 | if (err < 0) | |
1419 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1420 | } |
f0fba2ad LG |
1421 | codec_dai->probed = 0; |
1422 | list_del(&codec_dai->card_list); | |
1423 | } | |
6b05eda6 | 1424 | |
f0fba2ad LG |
1425 | /* remove the platform */ |
1426 | if (platform && platform->probed) { | |
1427 | if (platform->driver->remove) { | |
1428 | err = platform->driver->remove(platform); | |
1429 | if (err < 0) | |
1430 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1431 | } | |
1432 | platform->probed = 0; | |
1433 | list_del(&platform->card_list); | |
1434 | module_put(platform->dev->driver->owner); | |
1435 | } | |
435c5e25 | 1436 | |
f0fba2ad | 1437 | /* remove the CODEC */ |
589c3563 JN |
1438 | if (codec && codec->probed) |
1439 | soc_remove_codec(codec); | |
db2a4165 | 1440 | |
f0fba2ad LG |
1441 | /* remove the cpu_dai */ |
1442 | if (cpu_dai && cpu_dai->probed) { | |
1443 | if (cpu_dai->driver->remove) { | |
1444 | err = cpu_dai->driver->remove(cpu_dai); | |
1445 | if (err < 0) | |
1446 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1447 | } |
f0fba2ad LG |
1448 | cpu_dai->probed = 0; |
1449 | list_del(&cpu_dai->card_list); | |
1450 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1451 | } |
f0fba2ad | 1452 | } |
db2a4165 | 1453 | |
ead9b919 JN |
1454 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1455 | struct snd_soc_codec *codec) | |
1456 | { | |
1457 | int i; | |
1458 | ||
ff819b83 | 1459 | if (card->codec_conf == NULL) |
ead9b919 JN |
1460 | return; |
1461 | ||
ff819b83 DP |
1462 | for (i = 0; i < card->num_configs; i++) { |
1463 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1464 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1465 | codec->name_prefix = map->name_prefix; | |
1466 | break; | |
1467 | } | |
1468 | } | |
1469 | } | |
1470 | ||
589c3563 JN |
1471 | static int soc_probe_codec(struct snd_soc_card *card, |
1472 | struct snd_soc_codec *codec) | |
1473 | { | |
1474 | int ret = 0; | |
89b95ac0 | 1475 | const struct snd_soc_codec_driver *driver = codec->driver; |
589c3563 JN |
1476 | |
1477 | codec->card = card; | |
1478 | codec->dapm.card = card; | |
1479 | soc_set_name_prefix(card, codec); | |
1480 | ||
70d29331 JN |
1481 | if (!try_module_get(codec->dev->driver->owner)) |
1482 | return -ENODEV; | |
1483 | ||
89b95ac0 MB |
1484 | if (driver->probe) { |
1485 | ret = driver->probe(codec); | |
589c3563 JN |
1486 | if (ret < 0) { |
1487 | dev_err(codec->dev, | |
1488 | "asoc: failed to probe CODEC %s: %d\n", | |
1489 | codec->name, ret); | |
70d29331 | 1490 | goto err_probe; |
589c3563 JN |
1491 | } |
1492 | } | |
1493 | ||
89b95ac0 MB |
1494 | if (driver->dapm_widgets) |
1495 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
1496 | driver->num_dapm_widgets); | |
1497 | if (driver->dapm_routes) | |
1498 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
1499 | driver->num_dapm_routes); | |
1500 | ||
589c3563 JN |
1501 | soc_init_codec_debugfs(codec); |
1502 | ||
1503 | /* mark codec as probed and add to card codec list */ | |
1504 | codec->probed = 1; | |
1505 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1506 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 1507 | |
70d29331 JN |
1508 | return 0; |
1509 | ||
1510 | err_probe: | |
1511 | module_put(codec->dev->driver->owner); | |
1512 | ||
589c3563 JN |
1513 | return ret; |
1514 | } | |
1515 | ||
f0fba2ad LG |
1516 | static void rtd_release(struct device *dev) {} |
1517 | ||
589c3563 JN |
1518 | static int soc_post_component_init(struct snd_soc_card *card, |
1519 | struct snd_soc_codec *codec, | |
1520 | int num, int dailess) | |
1521 | { | |
1522 | struct snd_soc_dai_link *dai_link = NULL; | |
1523 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1524 | struct snd_soc_pcm_runtime *rtd; | |
1525 | const char *temp, *name; | |
1526 | int ret = 0; | |
1527 | ||
1528 | if (!dailess) { | |
1529 | dai_link = &card->dai_link[num]; | |
1530 | rtd = &card->rtd[num]; | |
1531 | name = dai_link->name; | |
1532 | } else { | |
1533 | aux_dev = &card->aux_dev[num]; | |
1534 | rtd = &card->rtd_aux[num]; | |
1535 | name = aux_dev->name; | |
1536 | } | |
0962bb21 | 1537 | rtd->card = card; |
589c3563 JN |
1538 | |
1539 | /* machine controls, routes and widgets are not prefixed */ | |
1540 | temp = codec->name_prefix; | |
1541 | codec->name_prefix = NULL; | |
1542 | ||
1543 | /* do machine specific initialization */ | |
1544 | if (!dailess && dai_link->init) | |
1545 | ret = dai_link->init(rtd); | |
1546 | else if (dailess && aux_dev->init) | |
1547 | ret = aux_dev->init(&codec->dapm); | |
1548 | if (ret < 0) { | |
1549 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1550 | return ret; | |
1551 | } | |
1552 | codec->name_prefix = temp; | |
1553 | ||
1554 | /* Make sure all DAPM widgets are instantiated */ | |
1555 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1556 | |
1557 | /* register the rtd device */ | |
1558 | rtd->codec = codec; | |
589c3563 JN |
1559 | rtd->dev.parent = card->dev; |
1560 | rtd->dev.release = rtd_release; | |
1561 | rtd->dev.init_name = name; | |
1562 | ret = device_register(&rtd->dev); | |
1563 | if (ret < 0) { | |
1564 | dev_err(card->dev, | |
1565 | "asoc: failed to register runtime device: %d\n", ret); | |
1566 | return ret; | |
1567 | } | |
1568 | rtd->dev_registered = 1; | |
1569 | ||
1570 | /* add DAPM sysfs entries for this codec */ | |
1571 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1572 | if (ret < 0) | |
1573 | dev_err(codec->dev, | |
1574 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1575 | ret); | |
1576 | ||
1577 | /* add codec sysfs entries */ | |
1578 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1579 | if (ret < 0) | |
1580 | dev_err(codec->dev, | |
1581 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1582 | ||
1583 | return 0; | |
1584 | } | |
1585 | ||
f0fba2ad LG |
1586 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1587 | { | |
1588 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1589 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1590 | struct snd_soc_codec *codec = rtd->codec; | |
1591 | struct snd_soc_platform *platform = rtd->platform; | |
1592 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1593 | int ret; | |
1594 | ||
1595 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1596 | ||
1597 | /* config components */ | |
1598 | codec_dai->codec = codec; | |
f0fba2ad | 1599 | cpu_dai->platform = platform; |
f0fba2ad LG |
1600 | codec_dai->card = card; |
1601 | cpu_dai->card = card; | |
1602 | ||
1603 | /* set default power off timeout */ | |
1604 | rtd->pmdown_time = pmdown_time; | |
1605 | ||
1606 | /* probe the cpu_dai */ | |
1607 | if (!cpu_dai->probed) { | |
1608 | if (cpu_dai->driver->probe) { | |
1609 | ret = cpu_dai->driver->probe(cpu_dai); | |
1610 | if (ret < 0) { | |
1611 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1612 | cpu_dai->name); | |
1613 | return ret; | |
1614 | } | |
1615 | } | |
1616 | cpu_dai->probed = 1; | |
1617 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1618 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1619 | } |
1620 | ||
f0fba2ad LG |
1621 | /* probe the CODEC */ |
1622 | if (!codec->probed) { | |
589c3563 JN |
1623 | ret = soc_probe_codec(card, codec); |
1624 | if (ret < 0) | |
1625 | return ret; | |
db2a4165 FM |
1626 | } |
1627 | ||
f0fba2ad LG |
1628 | /* probe the platform */ |
1629 | if (!platform->probed) { | |
70d29331 JN |
1630 | if (!try_module_get(platform->dev->driver->owner)) |
1631 | return -ENODEV; | |
1632 | ||
f0fba2ad LG |
1633 | if (platform->driver->probe) { |
1634 | ret = platform->driver->probe(platform); | |
1635 | if (ret < 0) { | |
1636 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1637 | platform->name); | |
70d29331 | 1638 | module_put(platform->dev->driver->owner); |
f0fba2ad LG |
1639 | return ret; |
1640 | } | |
1641 | } | |
1642 | /* mark platform as probed and add to card platform list */ | |
1643 | platform->probed = 1; | |
1644 | list_add(&platform->card_list, &card->platform_dev_list); | |
1645 | } | |
6ed25978 | 1646 | |
f0fba2ad LG |
1647 | /* probe the CODEC DAI */ |
1648 | if (!codec_dai->probed) { | |
1649 | if (codec_dai->driver->probe) { | |
1650 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1651 | if (ret < 0) { |
f0fba2ad LG |
1652 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1653 | codec_dai->name); | |
1654 | return ret; | |
fe3e78e0 MB |
1655 | } |
1656 | } | |
f0fba2ad LG |
1657 | |
1658 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1659 | codec_dai->probed = 1; | |
1660 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1661 | } |
1662 | ||
f0fba2ad LG |
1663 | /* DAPM dai link stream work */ |
1664 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1665 | ||
589c3563 JN |
1666 | ret = soc_post_component_init(card, codec, num, 0); |
1667 | if (ret) | |
f0fba2ad | 1668 | return ret; |
fe3e78e0 | 1669 | |
f0fba2ad LG |
1670 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1671 | if (ret < 0) | |
1672 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1673 | ||
f0fba2ad LG |
1674 | /* create the pcm */ |
1675 | ret = soc_new_pcm(rtd, num); | |
1676 | if (ret < 0) { | |
1677 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1678 | return ret; | |
1679 | } | |
1680 | ||
1681 | /* add platform data for AC97 devices */ | |
1682 | if (rtd->codec_dai->driver->ac97_control) | |
1683 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1684 | ||
1685 | return 0; | |
1686 | } | |
1687 | ||
fe3e78e0 | 1688 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1689 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1690 | { | |
1691 | int ret; | |
1692 | ||
fe3e78e0 MB |
1693 | /* Only instantiate AC97 if not already done by the adaptor |
1694 | * for the generic AC97 subsystem. | |
1695 | */ | |
f0fba2ad | 1696 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1697 | /* |
1698 | * It is possible that the AC97 device is already registered to | |
1699 | * the device subsystem. This happens when the device is created | |
1700 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1701 | * is the generic AC97 glue but others migh emerge. | |
1702 | * | |
1703 | * In those cases we don't try to register the device again. | |
1704 | */ | |
1705 | if (!rtd->codec->ac97_created) | |
1706 | return 0; | |
f0fba2ad LG |
1707 | |
1708 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1709 | if (ret < 0) { |
1710 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1711 | return ret; |
fe3e78e0 | 1712 | } |
f0fba2ad LG |
1713 | |
1714 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1715 | } |
f0fba2ad LG |
1716 | return 0; |
1717 | } | |
1718 | ||
1719 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1720 | { | |
1721 | if (codec->ac97_registered) { | |
1722 | soc_ac97_dev_unregister(codec); | |
1723 | codec->ac97_registered = 0; | |
1724 | } | |
1725 | } | |
fe3e78e0 MB |
1726 | #endif |
1727 | ||
2eea392d JN |
1728 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1729 | { | |
1730 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1731 | struct snd_soc_codec *codec; |
676ad98a | 1732 | int ret = -ENODEV; |
2eea392d JN |
1733 | |
1734 | /* find CODEC from registered CODECs*/ | |
1735 | list_for_each_entry(codec, &codec_list, list) { | |
1736 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1737 | if (codec->probed) { | |
1738 | dev_err(codec->dev, | |
1739 | "asoc: codec already probed"); | |
1740 | ret = -EBUSY; | |
1741 | goto out; | |
1742 | } | |
676ad98a | 1743 | goto found; |
2eea392d JN |
1744 | } |
1745 | } | |
676ad98a JN |
1746 | /* codec not found */ |
1747 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1748 | goto out; | |
2eea392d | 1749 | |
676ad98a | 1750 | found: |
589c3563 | 1751 | ret = soc_probe_codec(card, codec); |
2eea392d | 1752 | if (ret < 0) |
589c3563 | 1753 | return ret; |
2eea392d | 1754 | |
589c3563 | 1755 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1756 | |
1757 | out: | |
1758 | return ret; | |
1759 | } | |
1760 | ||
1761 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1762 | { | |
1763 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1764 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1765 | |
1766 | /* unregister the rtd device */ | |
1767 | if (rtd->dev_registered) { | |
589c3563 | 1768 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1769 | device_unregister(&rtd->dev); |
1770 | rtd->dev_registered = 0; | |
1771 | } | |
1772 | ||
589c3563 JN |
1773 | if (codec && codec->probed) |
1774 | soc_remove_codec(codec); | |
2eea392d JN |
1775 | } |
1776 | ||
fdf0f54d DP |
1777 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1778 | enum snd_soc_compress_type compress_type) | |
1779 | { | |
1780 | int ret; | |
1781 | ||
1782 | if (codec->cache_init) | |
1783 | return 0; | |
1784 | ||
1785 | /* override the compress_type if necessary */ | |
1786 | if (compress_type && codec->compress_type != compress_type) | |
1787 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1788 | ret = snd_soc_cache_init(codec); |
1789 | if (ret < 0) { | |
1790 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1791 | ret); | |
1792 | return ret; | |
1793 | } | |
1794 | codec->cache_init = 1; | |
1795 | return 0; | |
1796 | } | |
1797 | ||
f0fba2ad LG |
1798 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1799 | { | |
fdf0f54d DP |
1800 | struct snd_soc_codec *codec; |
1801 | struct snd_soc_codec_conf *codec_conf; | |
1802 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1803 | int ret, i; |
fe3e78e0 | 1804 | |
f0fba2ad | 1805 | mutex_lock(&card->mutex); |
dbe21408 | 1806 | |
f0fba2ad LG |
1807 | if (card->instantiated) { |
1808 | mutex_unlock(&card->mutex); | |
1809 | return; | |
1810 | } | |
fe3e78e0 | 1811 | |
f0fba2ad LG |
1812 | /* bind DAIs */ |
1813 | for (i = 0; i < card->num_links; i++) | |
1814 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1815 | |
f0fba2ad LG |
1816 | /* bind completed ? */ |
1817 | if (card->num_rtd != card->num_links) { | |
1818 | mutex_unlock(&card->mutex); | |
1819 | return; | |
1820 | } | |
435c5e25 | 1821 | |
fdf0f54d DP |
1822 | /* initialize the register cache for each available codec */ |
1823 | list_for_each_entry(codec, &codec_list, list) { | |
1824 | if (codec->cache_init) | |
1825 | continue; | |
861f2faf DP |
1826 | /* by default we don't override the compress_type */ |
1827 | compress_type = 0; | |
fdf0f54d DP |
1828 | /* check to see if we need to override the compress_type */ |
1829 | for (i = 0; i < card->num_configs; ++i) { | |
1830 | codec_conf = &card->codec_conf[i]; | |
1831 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1832 | compress_type = codec_conf->compress_type; | |
1833 | if (compress_type && compress_type | |
1834 | != codec->compress_type) | |
1835 | break; | |
1836 | } | |
1837 | } | |
fdf0f54d DP |
1838 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1839 | if (ret < 0) { | |
1840 | mutex_unlock(&card->mutex); | |
1841 | return; | |
1842 | } | |
1843 | } | |
1844 | ||
f0fba2ad LG |
1845 | /* card bind complete so register a sound card */ |
1846 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1847 | card->owner, 0, &card->snd_card); | |
1848 | if (ret < 0) { | |
1849 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1850 | card->name); | |
1851 | mutex_unlock(&card->mutex); | |
1852 | return; | |
1853 | } | |
1854 | card->snd_card->dev = card->dev; | |
1855 | ||
e37a4970 MB |
1856 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1857 | card->dapm.dev = card->dev; | |
1858 | card->dapm.card = card; | |
1859 | list_add(&card->dapm.list, &card->dapm_list); | |
1860 | ||
88ee1c61 | 1861 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1862 | /* deferred resume work */ |
1863 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1864 | #endif | |
db2a4165 | 1865 | |
f0fba2ad LG |
1866 | /* initialise the sound card only once */ |
1867 | if (card->probe) { | |
e7361ec4 | 1868 | ret = card->probe(card); |
f0fba2ad LG |
1869 | if (ret < 0) |
1870 | goto card_probe_error; | |
1871 | } | |
fe3e78e0 | 1872 | |
f0fba2ad LG |
1873 | for (i = 0; i < card->num_links; i++) { |
1874 | ret = soc_probe_dai_link(card, i); | |
1875 | if (ret < 0) { | |
321de0d0 MB |
1876 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1877 | card->name, ret); | |
f0fba2ad LG |
1878 | goto probe_dai_err; |
1879 | } | |
1880 | } | |
db2a4165 | 1881 | |
2eea392d JN |
1882 | for (i = 0; i < card->num_aux_devs; i++) { |
1883 | ret = soc_probe_aux_dev(card, i); | |
1884 | if (ret < 0) { | |
1885 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1886 | card->name, ret); | |
1887 | goto probe_aux_dev_err; | |
1888 | } | |
1889 | } | |
1890 | ||
b8ad29de MB |
1891 | if (card->dapm_widgets) |
1892 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1893 | card->num_dapm_widgets); | |
1894 | if (card->dapm_routes) | |
1895 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1896 | card->num_dapm_routes); | |
1897 | ||
a2721fd9 | 1898 | #ifdef CONFIG_DEBUG_FS |
e37a4970 MB |
1899 | card->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
1900 | card->debugfs_card_root); | |
1901 | if (!card->dapm.debugfs_dapm) | |
1902 | printk(KERN_WARNING | |
1903 | "Failed to create card DAPM debugfs directory\n"); | |
1904 | ||
1905 | snd_soc_dapm_debugfs_init(&card->dapm); | |
a2721fd9 | 1906 | #endif |
e37a4970 | 1907 | |
f0fba2ad LG |
1908 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1909 | "%s", card->name); | |
1910 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1911 | "%s", card->name); | |
1912 | ||
28e9ad92 MB |
1913 | if (card->late_probe) { |
1914 | ret = card->late_probe(card); | |
1915 | if (ret < 0) { | |
1916 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1917 | card->name, ret); | |
1918 | goto probe_aux_dev_err; | |
1919 | } | |
1920 | } | |
1921 | ||
f0fba2ad LG |
1922 | ret = snd_card_register(card->snd_card); |
1923 | if (ret < 0) { | |
1924 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1925 | goto probe_aux_dev_err; |
db2a4165 FM |
1926 | } |
1927 | ||
f0fba2ad LG |
1928 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1929 | /* register any AC97 codecs */ | |
1930 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1931 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1932 | if (ret < 0) { | |
1933 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1934 | while (--i >= 0) | |
7d8316df | 1935 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1936 | goto probe_aux_dev_err; |
f0fba2ad | 1937 | } |
6b3ed785 | 1938 | } |
f0fba2ad LG |
1939 | #endif |
1940 | ||
1941 | card->instantiated = 1; | |
1942 | mutex_unlock(&card->mutex); | |
1943 | return; | |
1944 | ||
2eea392d JN |
1945 | probe_aux_dev_err: |
1946 | for (i = 0; i < card->num_aux_devs; i++) | |
1947 | soc_remove_aux_dev(card, i); | |
1948 | ||
f0fba2ad LG |
1949 | probe_dai_err: |
1950 | for (i = 0; i < card->num_links; i++) | |
1951 | soc_remove_dai_link(card, i); | |
1952 | ||
1953 | card_probe_error: | |
87506549 | 1954 | if (card->remove) |
e7361ec4 | 1955 | card->remove(card); |
f0fba2ad LG |
1956 | |
1957 | snd_card_free(card->snd_card); | |
1958 | ||
1959 | mutex_unlock(&card->mutex); | |
435c5e25 | 1960 | } |
db2a4165 | 1961 | |
435c5e25 | 1962 | /* |
421f91d2 | 1963 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1964 | * client_mutex. |
1965 | */ | |
1966 | static void snd_soc_instantiate_cards(void) | |
1967 | { | |
1968 | struct snd_soc_card *card; | |
1969 | list_for_each_entry(card, &card_list, list) | |
1970 | snd_soc_instantiate_card(card); | |
1971 | } | |
1972 | ||
1973 | /* probes a new socdev */ | |
1974 | static int soc_probe(struct platform_device *pdev) | |
1975 | { | |
f0fba2ad | 1976 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1977 | int ret = 0; |
435c5e25 | 1978 | |
70a7ca34 VK |
1979 | /* |
1980 | * no card, so machine driver should be registering card | |
1981 | * we should not be here in that case so ret error | |
1982 | */ | |
1983 | if (!card) | |
1984 | return -EINVAL; | |
1985 | ||
435c5e25 MB |
1986 | /* Bodge while we unpick instantiation */ |
1987 | card->dev = &pdev->dev; | |
f0fba2ad | 1988 | |
435c5e25 MB |
1989 | ret = snd_soc_register_card(card); |
1990 | if (ret != 0) { | |
1991 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1992 | return ret; | |
1993 | } | |
1994 | ||
1995 | return 0; | |
db2a4165 FM |
1996 | } |
1997 | ||
b0e26485 | 1998 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1999 | { |
2000 | int i; | |
db2a4165 | 2001 | |
b0e26485 VK |
2002 | /* make sure any delayed work runs */ |
2003 | for (i = 0; i < card->num_rtd; i++) { | |
2004 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
2005 | flush_delayed_work_sync(&rtd->delayed_work); | |
2006 | } | |
914dc182 | 2007 | |
b0e26485 VK |
2008 | /* remove auxiliary devices */ |
2009 | for (i = 0; i < card->num_aux_devs; i++) | |
2010 | soc_remove_aux_dev(card, i); | |
db2a4165 | 2011 | |
b0e26485 VK |
2012 | /* remove and free each DAI */ |
2013 | for (i = 0; i < card->num_rtd; i++) | |
2014 | soc_remove_dai_link(card, i); | |
2eea392d | 2015 | |
b0e26485 | 2016 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 2017 | |
b0e26485 VK |
2018 | /* remove the card */ |
2019 | if (card->remove) | |
e7361ec4 | 2020 | card->remove(card); |
a6052154 | 2021 | |
b0e26485 VK |
2022 | kfree(card->rtd); |
2023 | snd_card_free(card->snd_card); | |
2024 | return 0; | |
2025 | ||
2026 | } | |
2027 | ||
2028 | /* removes a socdev */ | |
2029 | static int soc_remove(struct platform_device *pdev) | |
2030 | { | |
2031 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 2032 | |
c5af3a2e | 2033 | snd_soc_unregister_card(card); |
db2a4165 FM |
2034 | return 0; |
2035 | } | |
2036 | ||
6f8ab4ac | 2037 | int snd_soc_poweroff(struct device *dev) |
51737470 | 2038 | { |
6f8ab4ac | 2039 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 2040 | int i; |
51737470 MB |
2041 | |
2042 | if (!card->instantiated) | |
416356fc | 2043 | return 0; |
51737470 MB |
2044 | |
2045 | /* Flush out pmdown_time work - we actually do want to run it | |
2046 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
2047 | for (i = 0; i < card->num_rtd; i++) { |
2048 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 2049 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 2050 | } |
51737470 | 2051 | |
f0fba2ad | 2052 | snd_soc_dapm_shutdown(card); |
416356fc MB |
2053 | |
2054 | return 0; | |
51737470 | 2055 | } |
6f8ab4ac | 2056 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 2057 | |
6f8ab4ac MB |
2058 | const struct dev_pm_ops snd_soc_pm_ops = { |
2059 | .suspend = snd_soc_suspend, | |
2060 | .resume = snd_soc_resume, | |
2061 | .poweroff = snd_soc_poweroff, | |
416356fc | 2062 | }; |
deb2607e | 2063 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 2064 | |
db2a4165 FM |
2065 | /* ASoC platform driver */ |
2066 | static struct platform_driver soc_driver = { | |
2067 | .driver = { | |
2068 | .name = "soc-audio", | |
8b45a209 | 2069 | .owner = THIS_MODULE, |
6f8ab4ac | 2070 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
2071 | }, |
2072 | .probe = soc_probe, | |
2073 | .remove = soc_remove, | |
db2a4165 FM |
2074 | }; |
2075 | ||
2076 | /* create a new pcm */ | |
f0fba2ad LG |
2077 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
2078 | { | |
2079 | struct snd_soc_codec *codec = rtd->codec; | |
2080 | struct snd_soc_platform *platform = rtd->platform; | |
2081 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2082 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
2083 | struct snd_pcm *pcm; |
2084 | char new_name[64]; | |
2085 | int ret = 0, playback = 0, capture = 0; | |
2086 | ||
db2a4165 | 2087 | /* check client and interface hw capabilities */ |
40ca1142 | 2088 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 2089 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 2090 | |
f0fba2ad | 2091 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 2092 | playback = 1; |
f0fba2ad | 2093 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
2094 | capture = 1; |
2095 | ||
f0fba2ad LG |
2096 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
2097 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
2098 | num, playback, capture, &pcm); | |
db2a4165 | 2099 | if (ret < 0) { |
f0fba2ad | 2100 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
2101 | return ret; |
2102 | } | |
2103 | ||
f0fba2ad | 2104 | rtd->pcm = pcm; |
db2a4165 | 2105 | pcm->private_data = rtd; |
f0fba2ad LG |
2106 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
2107 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2108 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2109 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2110 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2111 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2112 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2113 | |
2114 | if (playback) | |
2115 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2116 | ||
2117 | if (capture) | |
2118 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2119 | ||
f0fba2ad | 2120 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2121 | if (ret < 0) { |
2122 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2123 | return ret; |
2124 | } | |
2125 | ||
f0fba2ad | 2126 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2127 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2128 | cpu_dai->name); | |
2129 | return ret; | |
2130 | } | |
2131 | ||
096e49d5 MB |
2132 | /** |
2133 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2134 | * | |
2135 | * @codec: CODEC to query. | |
2136 | * @reg: Register to query. | |
2137 | * | |
2138 | * Boolean function indiciating if a CODEC register is volatile. | |
2139 | */ | |
181e055e MB |
2140 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2141 | unsigned int reg) | |
096e49d5 | 2142 | { |
1500b7b5 DP |
2143 | if (codec->volatile_register) |
2144 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2145 | else |
2146 | return 0; | |
2147 | } | |
2148 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2149 | ||
db2a4165 FM |
2150 | /** |
2151 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2152 | * @codec: audio codec | |
2153 | * @ops: AC97 bus operations | |
2154 | * @num: AC97 codec number | |
2155 | * | |
2156 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2157 | */ | |
2158 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2159 | struct snd_ac97_bus_ops *ops, int num) | |
2160 | { | |
2161 | mutex_lock(&codec->mutex); | |
2162 | ||
2163 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2164 | if (codec->ac97 == NULL) { | |
2165 | mutex_unlock(&codec->mutex); | |
2166 | return -ENOMEM; | |
2167 | } | |
2168 | ||
2169 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2170 | if (codec->ac97->bus == NULL) { | |
2171 | kfree(codec->ac97); | |
2172 | codec->ac97 = NULL; | |
2173 | mutex_unlock(&codec->mutex); | |
2174 | return -ENOMEM; | |
2175 | } | |
2176 | ||
2177 | codec->ac97->bus->ops = ops; | |
2178 | codec->ac97->num = num; | |
0562f788 MW |
2179 | |
2180 | /* | |
2181 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2182 | * device will be registered with the device subsystem later on. | |
2183 | */ | |
2184 | codec->ac97_created = 1; | |
2185 | ||
db2a4165 FM |
2186 | mutex_unlock(&codec->mutex); |
2187 | return 0; | |
2188 | } | |
2189 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2190 | ||
2191 | /** | |
2192 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2193 | * @codec: audio codec | |
2194 | * | |
2195 | * Frees AC97 codec device resources. | |
2196 | */ | |
2197 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2198 | { | |
2199 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2200 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2201 | soc_unregister_ac97_dai_link(codec); | |
2202 | #endif | |
db2a4165 FM |
2203 | kfree(codec->ac97->bus); |
2204 | kfree(codec->ac97); | |
2205 | codec->ac97 = NULL; | |
0562f788 | 2206 | codec->ac97_created = 0; |
db2a4165 FM |
2207 | mutex_unlock(&codec->mutex); |
2208 | } | |
2209 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2210 | ||
c3753707 MB |
2211 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2212 | { | |
2213 | unsigned int ret; | |
2214 | ||
c3acec26 | 2215 | ret = codec->read(codec, reg); |
c3753707 | 2216 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2217 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2218 | |
2219 | return ret; | |
2220 | } | |
2221 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2222 | ||
2223 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2224 | unsigned int reg, unsigned int val) | |
2225 | { | |
2226 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2227 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2228 | return codec->write(codec, reg, val); |
c3753707 MB |
2229 | } |
2230 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2231 | ||
db2a4165 FM |
2232 | /** |
2233 | * snd_soc_update_bits - update codec register bits | |
2234 | * @codec: audio codec | |
2235 | * @reg: codec register | |
2236 | * @mask: register mask | |
2237 | * @value: new value | |
2238 | * | |
2239 | * Writes new register value. | |
2240 | * | |
180c329d | 2241 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2242 | */ |
2243 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2244 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2245 | { |
2246 | int change; | |
46f5822f | 2247 | unsigned int old, new; |
180c329d TT |
2248 | int ret; |
2249 | ||
2250 | ret = snd_soc_read(codec, reg); | |
2251 | if (ret < 0) | |
2252 | return ret; | |
db2a4165 | 2253 | |
180c329d | 2254 | old = ret; |
db2a4165 FM |
2255 | new = (old & ~mask) | value; |
2256 | change = old != new; | |
180c329d TT |
2257 | if (change) { |
2258 | ret = snd_soc_write(codec, reg, new); | |
2259 | if (ret < 0) | |
2260 | return ret; | |
2261 | } | |
db2a4165 | 2262 | |
db2a4165 FM |
2263 | return change; |
2264 | } | |
2265 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2266 | ||
6c508c62 EN |
2267 | /** |
2268 | * snd_soc_update_bits_locked - update codec register bits | |
2269 | * @codec: audio codec | |
2270 | * @reg: codec register | |
2271 | * @mask: register mask | |
2272 | * @value: new value | |
2273 | * | |
2274 | * Writes new register value, and takes the codec mutex. | |
2275 | * | |
2276 | * Returns 1 for change else 0. | |
2277 | */ | |
dd1b3d53 MB |
2278 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2279 | unsigned short reg, unsigned int mask, | |
2280 | unsigned int value) | |
6c508c62 EN |
2281 | { |
2282 | int change; | |
2283 | ||
2284 | mutex_lock(&codec->mutex); | |
2285 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2286 | mutex_unlock(&codec->mutex); | |
2287 | ||
2288 | return change; | |
2289 | } | |
dd1b3d53 | 2290 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2291 | |
db2a4165 FM |
2292 | /** |
2293 | * snd_soc_test_bits - test register for change | |
2294 | * @codec: audio codec | |
2295 | * @reg: codec register | |
2296 | * @mask: register mask | |
2297 | * @value: new value | |
2298 | * | |
2299 | * Tests a register with a new value and checks if the new value is | |
2300 | * different from the old value. | |
2301 | * | |
2302 | * Returns 1 for change else 0. | |
2303 | */ | |
2304 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2305 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2306 | { |
2307 | int change; | |
46f5822f | 2308 | unsigned int old, new; |
db2a4165 | 2309 | |
db2a4165 FM |
2310 | old = snd_soc_read(codec, reg); |
2311 | new = (old & ~mask) | value; | |
2312 | change = old != new; | |
db2a4165 FM |
2313 | |
2314 | return change; | |
2315 | } | |
2316 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2317 | ||
db2a4165 FM |
2318 | /** |
2319 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2320 | * @substream: the pcm substream | |
2321 | * @hw: the hardware parameters | |
2322 | * | |
2323 | * Sets the substream runtime hardware parameters. | |
2324 | */ | |
2325 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2326 | const struct snd_pcm_hardware *hw) | |
2327 | { | |
2328 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2329 | runtime->hw.info = hw->info; | |
2330 | runtime->hw.formats = hw->formats; | |
2331 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2332 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2333 | runtime->hw.periods_min = hw->periods_min; | |
2334 | runtime->hw.periods_max = hw->periods_max; | |
2335 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2336 | runtime->hw.fifo_size = hw->fifo_size; | |
2337 | return 0; | |
2338 | } | |
2339 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2340 | ||
2341 | /** | |
2342 | * snd_soc_cnew - create new control | |
2343 | * @_template: control template | |
2344 | * @data: control private data | |
ac11a2b3 | 2345 | * @long_name: control long name |
efb7ac3f | 2346 | * @prefix: control name prefix |
db2a4165 FM |
2347 | * |
2348 | * Create a new mixer control from a template control. | |
2349 | * | |
2350 | * Returns 0 for success, else error. | |
2351 | */ | |
2352 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
2353 | void *data, char *long_name, |
2354 | const char *prefix) | |
db2a4165 FM |
2355 | { |
2356 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
2357 | struct snd_kcontrol *kcontrol; |
2358 | char *name = NULL; | |
2359 | int name_len; | |
db2a4165 FM |
2360 | |
2361 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
2362 | template.index = 0; |
2363 | ||
efb7ac3f MB |
2364 | if (!long_name) |
2365 | long_name = template.name; | |
2366 | ||
2367 | if (prefix) { | |
2368 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
2369 | name = kmalloc(name_len, GFP_ATOMIC); | |
2370 | if (!name) | |
2371 | return NULL; | |
2372 | ||
2373 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
2374 | ||
2375 | template.name = name; | |
2376 | } else { | |
2377 | template.name = long_name; | |
2378 | } | |
2379 | ||
2380 | kcontrol = snd_ctl_new1(&template, data); | |
2381 | ||
2382 | kfree(name); | |
2383 | ||
2384 | return kcontrol; | |
db2a4165 FM |
2385 | } |
2386 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2387 | ||
3e8e1952 IM |
2388 | /** |
2389 | * snd_soc_add_controls - add an array of controls to a codec. | |
2390 | * Convienience function to add a list of controls. Many codecs were | |
2391 | * duplicating this code. | |
2392 | * | |
2393 | * @codec: codec to add controls to | |
2394 | * @controls: array of controls to add | |
2395 | * @num_controls: number of elements in the array | |
2396 | * | |
2397 | * Return 0 for success, else error. | |
2398 | */ | |
2399 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2400 | const struct snd_kcontrol_new *controls, int num_controls) | |
2401 | { | |
f0fba2ad | 2402 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2403 | int err, i; |
2404 | ||
2405 | for (i = 0; i < num_controls; i++) { | |
2406 | const struct snd_kcontrol_new *control = &controls[i]; | |
efb7ac3f MB |
2407 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, |
2408 | control->name, | |
2409 | codec->name_prefix)); | |
3e8e1952 | 2410 | if (err < 0) { |
082100dc | 2411 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
efb7ac3f | 2412 | codec->name, control->name, err); |
3e8e1952 IM |
2413 | return err; |
2414 | } | |
2415 | } | |
2416 | ||
2417 | return 0; | |
2418 | } | |
2419 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2420 | ||
db2a4165 FM |
2421 | /** |
2422 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2423 | * @kcontrol: mixer control | |
2424 | * @uinfo: control element information | |
2425 | * | |
2426 | * Callback to provide information about a double enumerated | |
2427 | * mixer control. | |
2428 | * | |
2429 | * Returns 0 for success. | |
2430 | */ | |
2431 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2432 | struct snd_ctl_elem_info *uinfo) | |
2433 | { | |
2434 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2435 | ||
2436 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2437 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2438 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2439 | |
f8ba0b7b JS |
2440 | if (uinfo->value.enumerated.item > e->max - 1) |
2441 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2442 | strcpy(uinfo->value.enumerated.name, |
2443 | e->texts[uinfo->value.enumerated.item]); | |
2444 | return 0; | |
2445 | } | |
2446 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2447 | ||
2448 | /** | |
2449 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2450 | * @kcontrol: mixer control | |
ac11a2b3 | 2451 | * @ucontrol: control element information |
db2a4165 FM |
2452 | * |
2453 | * Callback to get the value of a double enumerated mixer. | |
2454 | * | |
2455 | * Returns 0 for success. | |
2456 | */ | |
2457 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2458 | struct snd_ctl_elem_value *ucontrol) | |
2459 | { | |
2460 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2461 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2462 | unsigned int val, bitmask; |
db2a4165 | 2463 | |
f8ba0b7b | 2464 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2465 | ; |
2466 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2467 | ucontrol->value.enumerated.item[0] |
2468 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2469 | if (e->shift_l != e->shift_r) |
2470 | ucontrol->value.enumerated.item[1] = | |
2471 | (val >> e->shift_r) & (bitmask - 1); | |
2472 | ||
2473 | return 0; | |
2474 | } | |
2475 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2476 | ||
2477 | /** | |
2478 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2479 | * @kcontrol: mixer control | |
ac11a2b3 | 2480 | * @ucontrol: control element information |
db2a4165 FM |
2481 | * |
2482 | * Callback to set the value of a double enumerated mixer. | |
2483 | * | |
2484 | * Returns 0 for success. | |
2485 | */ | |
2486 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2487 | struct snd_ctl_elem_value *ucontrol) | |
2488 | { | |
2489 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2490 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2491 | unsigned int val; |
2492 | unsigned int mask, bitmask; | |
db2a4165 | 2493 | |
f8ba0b7b | 2494 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2495 | ; |
f8ba0b7b | 2496 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2497 | return -EINVAL; |
2498 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2499 | mask = (bitmask - 1) << e->shift_l; | |
2500 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2501 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2502 | return -EINVAL; |
2503 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2504 | mask |= (bitmask - 1) << e->shift_r; | |
2505 | } | |
2506 | ||
6c508c62 | 2507 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2508 | } |
2509 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2510 | ||
2e72f8e3 PU |
2511 | /** |
2512 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2513 | * @kcontrol: mixer control | |
2514 | * @ucontrol: control element information | |
2515 | * | |
2516 | * Callback to get the value of a double semi enumerated mixer. | |
2517 | * | |
2518 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2519 | * used for handling bitfield coded enumeration for example. | |
2520 | * | |
2521 | * Returns 0 for success. | |
2522 | */ | |
2523 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2524 | struct snd_ctl_elem_value *ucontrol) | |
2525 | { | |
2526 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2527 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2528 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2529 | |
2530 | reg_val = snd_soc_read(codec, e->reg); | |
2531 | val = (reg_val >> e->shift_l) & e->mask; | |
2532 | for (mux = 0; mux < e->max; mux++) { | |
2533 | if (val == e->values[mux]) | |
2534 | break; | |
2535 | } | |
2536 | ucontrol->value.enumerated.item[0] = mux; | |
2537 | if (e->shift_l != e->shift_r) { | |
2538 | val = (reg_val >> e->shift_r) & e->mask; | |
2539 | for (mux = 0; mux < e->max; mux++) { | |
2540 | if (val == e->values[mux]) | |
2541 | break; | |
2542 | } | |
2543 | ucontrol->value.enumerated.item[1] = mux; | |
2544 | } | |
2545 | ||
2546 | return 0; | |
2547 | } | |
2548 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2549 | ||
2550 | /** | |
2551 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2552 | * @kcontrol: mixer control | |
2553 | * @ucontrol: control element information | |
2554 | * | |
2555 | * Callback to set the value of a double semi enumerated mixer. | |
2556 | * | |
2557 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2558 | * used for handling bitfield coded enumeration for example. | |
2559 | * | |
2560 | * Returns 0 for success. | |
2561 | */ | |
2562 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2563 | struct snd_ctl_elem_value *ucontrol) | |
2564 | { | |
2565 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2566 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2567 | unsigned int val; |
2568 | unsigned int mask; | |
2e72f8e3 PU |
2569 | |
2570 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2571 | return -EINVAL; | |
2572 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2573 | mask = e->mask << e->shift_l; | |
2574 | if (e->shift_l != e->shift_r) { | |
2575 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2576 | return -EINVAL; | |
2577 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2578 | mask |= e->mask << e->shift_r; | |
2579 | } | |
2580 | ||
6c508c62 | 2581 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2582 | } |
2583 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2584 | ||
db2a4165 FM |
2585 | /** |
2586 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2587 | * @kcontrol: mixer control | |
2588 | * @uinfo: control element information | |
2589 | * | |
2590 | * Callback to provide information about an external enumerated | |
2591 | * single mixer. | |
2592 | * | |
2593 | * Returns 0 for success. | |
2594 | */ | |
2595 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2596 | struct snd_ctl_elem_info *uinfo) | |
2597 | { | |
2598 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2599 | ||
2600 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2601 | uinfo->count = 1; | |
f8ba0b7b | 2602 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2603 | |
f8ba0b7b JS |
2604 | if (uinfo->value.enumerated.item > e->max - 1) |
2605 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2606 | strcpy(uinfo->value.enumerated.name, |
2607 | e->texts[uinfo->value.enumerated.item]); | |
2608 | return 0; | |
2609 | } | |
2610 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2611 | ||
2612 | /** | |
2613 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2614 | * @kcontrol: mixer control | |
2615 | * @uinfo: control element information | |
2616 | * | |
2617 | * Callback to provide information about a single external mixer control. | |
2618 | * | |
2619 | * Returns 0 for success. | |
2620 | */ | |
2621 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2622 | struct snd_ctl_elem_info *uinfo) | |
2623 | { | |
a7a4ac86 PZ |
2624 | int max = kcontrol->private_value; |
2625 | ||
fd5dfad9 | 2626 | if (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; | |
db2a4165 | 2630 | |
db2a4165 FM |
2631 | uinfo->count = 1; |
2632 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2633 | uinfo->value.integer.max = max; |
db2a4165 FM |
2634 | return 0; |
2635 | } | |
2636 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2637 | ||
db2a4165 FM |
2638 | /** |
2639 | * snd_soc_info_volsw - single mixer info callback | |
2640 | * @kcontrol: mixer control | |
2641 | * @uinfo: control element information | |
2642 | * | |
2643 | * Callback to provide information about a single mixer control. | |
2644 | * | |
2645 | * Returns 0 for success. | |
2646 | */ | |
2647 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2648 | struct snd_ctl_elem_info *uinfo) | |
2649 | { | |
4eaa9819 JS |
2650 | struct soc_mixer_control *mc = |
2651 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2652 | int platform_max; |
762b8df7 | 2653 | unsigned int shift = mc->shift; |
815ecf8d | 2654 | unsigned int rshift = mc->rshift; |
db2a4165 | 2655 | |
d11bb4a9 PU |
2656 | if (!mc->platform_max) |
2657 | mc->platform_max = mc->max; | |
2658 | platform_max = mc->platform_max; | |
2659 | ||
2660 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2661 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2662 | else | |
2663 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2664 | ||
db2a4165 FM |
2665 | uinfo->count = shift == rshift ? 1 : 2; |
2666 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2667 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2668 | return 0; |
2669 | } | |
2670 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2671 | ||
2672 | /** | |
2673 | * snd_soc_get_volsw - single mixer get callback | |
2674 | * @kcontrol: mixer control | |
ac11a2b3 | 2675 | * @ucontrol: control element information |
db2a4165 FM |
2676 | * |
2677 | * Callback to get the value of a single mixer control. | |
2678 | * | |
2679 | * Returns 0 for success. | |
2680 | */ | |
2681 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2682 | struct snd_ctl_elem_value *ucontrol) | |
2683 | { | |
4eaa9819 JS |
2684 | struct soc_mixer_control *mc = |
2685 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2686 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2687 | unsigned int reg = mc->reg; |
2688 | unsigned int shift = mc->shift; | |
2689 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2690 | int max = mc->max; |
815ecf8d JS |
2691 | unsigned int mask = (1 << fls(max)) - 1; |
2692 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2693 | |
2694 | ucontrol->value.integer.value[0] = | |
2695 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2696 | if (shift != rshift) | |
2697 | ucontrol->value.integer.value[1] = | |
2698 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2699 | if (invert) { | |
2700 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2701 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2702 | if (shift != rshift) |
2703 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2704 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2705 | } |
2706 | ||
2707 | return 0; | |
2708 | } | |
2709 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2710 | ||
2711 | /** | |
2712 | * snd_soc_put_volsw - single mixer put callback | |
2713 | * @kcontrol: mixer control | |
ac11a2b3 | 2714 | * @ucontrol: control element information |
db2a4165 FM |
2715 | * |
2716 | * Callback to set the value of a single mixer control. | |
2717 | * | |
2718 | * Returns 0 for success. | |
2719 | */ | |
2720 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2721 | struct snd_ctl_elem_value *ucontrol) | |
2722 | { | |
4eaa9819 JS |
2723 | struct soc_mixer_control *mc = |
2724 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2725 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2726 | unsigned int reg = mc->reg; |
2727 | unsigned int shift = mc->shift; | |
2728 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2729 | int max = mc->max; |
815ecf8d JS |
2730 | unsigned int mask = (1 << fls(max)) - 1; |
2731 | unsigned int invert = mc->invert; | |
46f5822f | 2732 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2733 | |
2734 | val = (ucontrol->value.integer.value[0] & mask); | |
2735 | if (invert) | |
a7a4ac86 | 2736 | val = max - val; |
db2a4165 FM |
2737 | val_mask = mask << shift; |
2738 | val = val << shift; | |
2739 | if (shift != rshift) { | |
2740 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2741 | if (invert) | |
a7a4ac86 | 2742 | val2 = max - val2; |
db2a4165 FM |
2743 | val_mask |= mask << rshift; |
2744 | val |= val2 << rshift; | |
2745 | } | |
6c508c62 | 2746 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2747 | } |
2748 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2749 | ||
2750 | /** | |
2751 | * snd_soc_info_volsw_2r - double mixer info callback | |
2752 | * @kcontrol: mixer control | |
2753 | * @uinfo: control element information | |
2754 | * | |
2755 | * Callback to provide information about a double mixer control that | |
2756 | * spans 2 codec registers. | |
2757 | * | |
2758 | * Returns 0 for success. | |
2759 | */ | |
2760 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2761 | struct snd_ctl_elem_info *uinfo) | |
2762 | { | |
4eaa9819 JS |
2763 | struct soc_mixer_control *mc = |
2764 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2765 | int platform_max; |
a7a4ac86 | 2766 | |
d11bb4a9 PU |
2767 | if (!mc->platform_max) |
2768 | mc->platform_max = mc->max; | |
2769 | platform_max = mc->platform_max; | |
2770 | ||
2771 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2772 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2773 | else | |
2774 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2775 | |
db2a4165 FM |
2776 | uinfo->count = 2; |
2777 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2778 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2779 | return 0; |
2780 | } | |
2781 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2782 | ||
2783 | /** | |
2784 | * snd_soc_get_volsw_2r - double mixer get callback | |
2785 | * @kcontrol: mixer control | |
ac11a2b3 | 2786 | * @ucontrol: control element information |
db2a4165 FM |
2787 | * |
2788 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2789 | * | |
2790 | * Returns 0 for success. | |
2791 | */ | |
2792 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2793 | struct snd_ctl_elem_value *ucontrol) | |
2794 | { | |
4eaa9819 JS |
2795 | struct soc_mixer_control *mc = |
2796 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2797 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2798 | unsigned int reg = mc->reg; |
2799 | unsigned int reg2 = mc->rreg; | |
2800 | unsigned int shift = mc->shift; | |
4eaa9819 | 2801 | int max = mc->max; |
46f5822f | 2802 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2803 | unsigned int invert = mc->invert; |
db2a4165 FM |
2804 | |
2805 | ucontrol->value.integer.value[0] = | |
2806 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2807 | ucontrol->value.integer.value[1] = | |
2808 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2809 | if (invert) { | |
2810 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2811 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2812 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2813 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2814 | } |
2815 | ||
2816 | return 0; | |
2817 | } | |
2818 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2819 | ||
2820 | /** | |
2821 | * snd_soc_put_volsw_2r - double mixer set callback | |
2822 | * @kcontrol: mixer control | |
ac11a2b3 | 2823 | * @ucontrol: control element information |
db2a4165 FM |
2824 | * |
2825 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2826 | * | |
2827 | * Returns 0 for success. | |
2828 | */ | |
2829 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2830 | struct snd_ctl_elem_value *ucontrol) | |
2831 | { | |
4eaa9819 JS |
2832 | struct soc_mixer_control *mc = |
2833 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2834 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2835 | unsigned int reg = mc->reg; |
2836 | unsigned int reg2 = mc->rreg; | |
2837 | unsigned int shift = mc->shift; | |
4eaa9819 | 2838 | int max = mc->max; |
815ecf8d JS |
2839 | unsigned int mask = (1 << fls(max)) - 1; |
2840 | unsigned int invert = mc->invert; | |
db2a4165 | 2841 | int err; |
46f5822f | 2842 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2843 | |
2844 | val_mask = mask << shift; | |
2845 | val = (ucontrol->value.integer.value[0] & mask); | |
2846 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2847 | ||
2848 | if (invert) { | |
a7a4ac86 PZ |
2849 | val = max - val; |
2850 | val2 = max - val2; | |
db2a4165 FM |
2851 | } |
2852 | ||
2853 | val = val << shift; | |
2854 | val2 = val2 << shift; | |
2855 | ||
6c508c62 | 2856 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2857 | if (err < 0) |
db2a4165 FM |
2858 | return err; |
2859 | ||
6c508c62 | 2860 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2861 | return err; |
2862 | } | |
2863 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2864 | ||
e13ac2e9 MB |
2865 | /** |
2866 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2867 | * @kcontrol: mixer control | |
2868 | * @uinfo: control element information | |
2869 | * | |
2870 | * Callback to provide information about a signed mixer control. | |
2871 | * | |
2872 | * Returns 0 for success. | |
2873 | */ | |
2874 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2875 | struct snd_ctl_elem_info *uinfo) | |
2876 | { | |
4eaa9819 JS |
2877 | struct soc_mixer_control *mc = |
2878 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2879 | int platform_max; |
4eaa9819 | 2880 | int min = mc->min; |
e13ac2e9 | 2881 | |
d11bb4a9 PU |
2882 | if (!mc->platform_max) |
2883 | mc->platform_max = mc->max; | |
2884 | platform_max = mc->platform_max; | |
2885 | ||
e13ac2e9 MB |
2886 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2887 | uinfo->count = 2; | |
2888 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2889 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2890 | return 0; |
2891 | } | |
2892 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2893 | ||
2894 | /** | |
2895 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2896 | * @kcontrol: mixer control | |
ac11a2b3 | 2897 | * @ucontrol: control element information |
e13ac2e9 MB |
2898 | * |
2899 | * Callback to get the value of a signed mixer control. | |
2900 | * | |
2901 | * Returns 0 for success. | |
2902 | */ | |
2903 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2904 | struct snd_ctl_elem_value *ucontrol) | |
2905 | { | |
4eaa9819 JS |
2906 | struct soc_mixer_control *mc = |
2907 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2908 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2909 | unsigned int reg = mc->reg; |
4eaa9819 | 2910 | int min = mc->min; |
e13ac2e9 MB |
2911 | int val = snd_soc_read(codec, reg); |
2912 | ||
2913 | ucontrol->value.integer.value[0] = | |
2914 | ((signed char)(val & 0xff))-min; | |
2915 | ucontrol->value.integer.value[1] = | |
2916 | ((signed char)((val >> 8) & 0xff))-min; | |
2917 | return 0; | |
2918 | } | |
2919 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2920 | ||
2921 | /** | |
2922 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2923 | * @kcontrol: mixer control | |
ac11a2b3 | 2924 | * @ucontrol: control element information |
e13ac2e9 MB |
2925 | * |
2926 | * Callback to set the value of a signed mixer control. | |
2927 | * | |
2928 | * Returns 0 for success. | |
2929 | */ | |
2930 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2931 | struct snd_ctl_elem_value *ucontrol) | |
2932 | { | |
4eaa9819 JS |
2933 | struct soc_mixer_control *mc = |
2934 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2935 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2936 | unsigned int reg = mc->reg; |
4eaa9819 | 2937 | int min = mc->min; |
46f5822f | 2938 | unsigned int val; |
e13ac2e9 MB |
2939 | |
2940 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2941 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2942 | ||
6c508c62 | 2943 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2944 | } |
2945 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2946 | ||
637d3847 PU |
2947 | /** |
2948 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2949 | * | |
2950 | * @codec: where to look for the control | |
2951 | * @name: Name of the control | |
2952 | * @max: new maximum limit | |
2953 | * | |
2954 | * Return 0 for success, else error. | |
2955 | */ | |
2956 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2957 | const char *name, int max) | |
2958 | { | |
f0fba2ad | 2959 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2960 | struct snd_kcontrol *kctl; |
2961 | struct soc_mixer_control *mc; | |
2962 | int found = 0; | |
2963 | int ret = -EINVAL; | |
2964 | ||
2965 | /* Sanity check for name and max */ | |
2966 | if (unlikely(!name || max <= 0)) | |
2967 | return -EINVAL; | |
2968 | ||
2969 | list_for_each_entry(kctl, &card->controls, list) { | |
2970 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2971 | found = 1; | |
2972 | break; | |
2973 | } | |
2974 | } | |
2975 | if (found) { | |
2976 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2977 | if (max <= mc->max) { | |
d11bb4a9 | 2978 | mc->platform_max = max; |
637d3847 PU |
2979 | ret = 0; |
2980 | } | |
2981 | } | |
2982 | return ret; | |
2983 | } | |
2984 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2985 | ||
b6f4bb38 | 2986 | /** |
2987 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2988 | * mixer info callback | |
2989 | * @kcontrol: mixer control | |
2990 | * @uinfo: control element information | |
2991 | * | |
2992 | * Returns 0 for success. | |
2993 | */ | |
2994 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2995 | struct snd_ctl_elem_info *uinfo) | |
2996 | { | |
2997 | struct soc_mixer_control *mc = | |
2998 | (struct soc_mixer_control *)kcontrol->private_value; | |
2999 | int max = mc->max; | |
3000 | int min = mc->min; | |
3001 | ||
3002 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
3003 | uinfo->count = 2; | |
3004 | uinfo->value.integer.min = 0; | |
3005 | uinfo->value.integer.max = max-min; | |
3006 | ||
3007 | return 0; | |
3008 | } | |
3009 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
3010 | ||
3011 | /** | |
3012 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
3013 | * mixer get callback | |
3014 | * @kcontrol: mixer control | |
3015 | * @uinfo: control element information | |
3016 | * | |
3017 | * Returns 0 for success. | |
3018 | */ | |
3019 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3020 | struct snd_ctl_elem_value *ucontrol) | |
3021 | { | |
3022 | struct soc_mixer_control *mc = | |
3023 | (struct soc_mixer_control *)kcontrol->private_value; | |
3024 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3025 | unsigned int mask = (1<<mc->shift)-1; | |
3026 | int min = mc->min; | |
3027 | int val = snd_soc_read(codec, mc->reg) & mask; | |
3028 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
3029 | ||
20630c7f SL |
3030 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
3031 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 3032 | return 0; |
3033 | } | |
3034 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
3035 | ||
3036 | /** | |
3037 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
3038 | * mixer put callback | |
3039 | * @kcontrol: mixer control | |
3040 | * @uinfo: control element information | |
3041 | * | |
3042 | * Returns 0 for success. | |
3043 | */ | |
3044 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
3045 | struct snd_ctl_elem_value *ucontrol) | |
3046 | { | |
3047 | struct soc_mixer_control *mc = | |
3048 | (struct soc_mixer_control *)kcontrol->private_value; | |
3049 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
3050 | unsigned int mask = (1<<mc->shift)-1; | |
3051 | int min = mc->min; | |
3052 | int ret; | |
3053 | unsigned int val, valr, oval, ovalr; | |
3054 | ||
3055 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
3056 | val &= mask; | |
3057 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
3058 | valr &= mask; | |
3059 | ||
3060 | oval = snd_soc_read(codec, mc->reg) & mask; | |
3061 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
3062 | ||
3063 | ret = 0; | |
3064 | if (oval != val) { | |
3065 | ret = snd_soc_write(codec, mc->reg, val); | |
3066 | if (ret < 0) | |
f1df5aec | 3067 | return ret; |
b6f4bb38 | 3068 | } |
3069 | if (ovalr != valr) { | |
3070 | ret = snd_soc_write(codec, mc->rreg, valr); | |
3071 | if (ret < 0) | |
f1df5aec | 3072 | return ret; |
b6f4bb38 | 3073 | } |
3074 | ||
3075 | return 0; | |
3076 | } | |
3077 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
3078 | ||
8c6529db LG |
3079 | /** |
3080 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
3081 | * @dai: DAI | |
3082 | * @clk_id: DAI specific clock ID | |
3083 | * @freq: new clock frequency in Hz | |
3084 | * @dir: new clock direction - input/output. | |
3085 | * | |
3086 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
3087 | */ | |
3088 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
3089 | unsigned int freq, int dir) | |
3090 | { | |
f0fba2ad LG |
3091 | if (dai->driver && dai->driver->ops->set_sysclk) |
3092 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a MB |
3093 | else if (dai->codec && dai->codec->driver->set_sysclk) |
3094 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, | |
3095 | freq, dir); | |
8c6529db LG |
3096 | else |
3097 | return -EINVAL; | |
3098 | } | |
3099 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
3100 | ||
ec4ee52a MB |
3101 | /** |
3102 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
3103 | * @codec: CODEC | |
3104 | * @clk_id: DAI specific clock ID | |
3105 | * @freq: new clock frequency in Hz | |
3106 | * @dir: new clock direction - input/output. | |
3107 | * | |
3108 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
3109 | */ | |
3110 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
3111 | unsigned int freq, int dir) | |
3112 | { | |
3113 | if (codec->driver->set_sysclk) | |
3114 | return codec->driver->set_sysclk(codec, clk_id, freq, dir); | |
3115 | else | |
3116 | return -EINVAL; | |
3117 | } | |
3118 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
3119 | ||
8c6529db LG |
3120 | /** |
3121 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
3122 | * @dai: DAI | |
ac11a2b3 | 3123 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
3124 | * @div: new clock divisor. |
3125 | * | |
3126 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
3127 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
3128 | * and frame clocks as low as possible to save system power. | |
3129 | */ | |
3130 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
3131 | int div_id, int div) | |
3132 | { | |
f0fba2ad LG |
3133 | if (dai->driver && dai->driver->ops->set_clkdiv) |
3134 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
3135 | else |
3136 | return -EINVAL; | |
3137 | } | |
3138 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
3139 | ||
3140 | /** | |
3141 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3142 | * @dai: DAI | |
3143 | * @pll_id: DAI specific PLL ID | |
85488037 | 3144 | * @source: DAI specific source for the PLL |
8c6529db LG |
3145 | * @freq_in: PLL input clock frequency in Hz |
3146 | * @freq_out: requested PLL output clock frequency in Hz | |
3147 | * | |
3148 | * Configures and enables PLL to generate output clock based on input clock. | |
3149 | */ | |
85488037 MB |
3150 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3151 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3152 | { |
f0fba2ad LG |
3153 | if (dai->driver && dai->driver->ops->set_pll) |
3154 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3155 | freq_in, freq_out); |
ec4ee52a MB |
3156 | else if (dai->codec && dai->codec->driver->set_pll) |
3157 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
3158 | freq_in, freq_out); | |
8c6529db LG |
3159 | else |
3160 | return -EINVAL; | |
3161 | } | |
3162 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3163 | ||
ec4ee52a MB |
3164 | /* |
3165 | * snd_soc_codec_set_pll - configure codec PLL. | |
3166 | * @codec: CODEC | |
3167 | * @pll_id: DAI specific PLL ID | |
3168 | * @source: DAI specific source for the PLL | |
3169 | * @freq_in: PLL input clock frequency in Hz | |
3170 | * @freq_out: requested PLL output clock frequency in Hz | |
3171 | * | |
3172 | * Configures and enables PLL to generate output clock based on input clock. | |
3173 | */ | |
3174 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
3175 | unsigned int freq_in, unsigned int freq_out) | |
3176 | { | |
3177 | if (codec->driver->set_pll) | |
3178 | return codec->driver->set_pll(codec, pll_id, source, | |
3179 | freq_in, freq_out); | |
3180 | else | |
3181 | return -EINVAL; | |
3182 | } | |
3183 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
3184 | ||
8c6529db LG |
3185 | /** |
3186 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3187 | * @dai: DAI | |
8c6529db LG |
3188 | * @fmt: SND_SOC_DAIFMT_ format value. |
3189 | * | |
3190 | * Configures the DAI hardware format and clocking. | |
3191 | */ | |
3192 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3193 | { | |
f0fba2ad LG |
3194 | if (dai->driver && dai->driver->ops->set_fmt) |
3195 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3196 | else |
3197 | return -EINVAL; | |
3198 | } | |
3199 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3200 | ||
3201 | /** | |
3202 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3203 | * @dai: DAI | |
a5479e38 DR |
3204 | * @tx_mask: bitmask representing active TX slots. |
3205 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3206 | * @slots: Number of slots in use. |
a5479e38 | 3207 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3208 | * |
3209 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3210 | * specific. | |
3211 | */ | |
3212 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3213 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3214 | { |
f0fba2ad LG |
3215 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3216 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3217 | slots, slot_width); |
8c6529db LG |
3218 | else |
3219 | return -EINVAL; | |
3220 | } | |
3221 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3222 | ||
472df3cb BS |
3223 | /** |
3224 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3225 | * @dai: DAI | |
3226 | * @tx_num: how many TX channels | |
3227 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3228 | * 0~num-1 uses | |
3229 | * @rx_num: how many RX channels | |
3230 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3231 | * 0~num-1 uses | |
3232 | * | |
3233 | * configure the relationship between channel number and TDM slot number. | |
3234 | */ | |
3235 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3236 | unsigned int tx_num, unsigned int *tx_slot, | |
3237 | unsigned int rx_num, unsigned int *rx_slot) | |
3238 | { | |
f0fba2ad LG |
3239 | if (dai->driver && dai->driver->ops->set_channel_map) |
3240 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3241 | rx_num, rx_slot); |
3242 | else | |
3243 | return -EINVAL; | |
3244 | } | |
3245 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3246 | ||
8c6529db LG |
3247 | /** |
3248 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3249 | * @dai: DAI | |
3250 | * @tristate: tristate enable | |
3251 | * | |
3252 | * Tristates the DAI so that others can use it. | |
3253 | */ | |
3254 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3255 | { | |
f0fba2ad LG |
3256 | if (dai->driver && dai->driver->ops->set_tristate) |
3257 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3258 | else |
3259 | return -EINVAL; | |
3260 | } | |
3261 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3262 | ||
3263 | /** | |
3264 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3265 | * @dai: DAI | |
3266 | * @mute: mute enable | |
3267 | * | |
3268 | * Mutes the DAI DAC. | |
3269 | */ | |
3270 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3271 | { | |
f0fba2ad LG |
3272 | if (dai->driver && dai->driver->ops->digital_mute) |
3273 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3274 | else |
3275 | return -EINVAL; | |
3276 | } | |
3277 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3278 | ||
c5af3a2e MB |
3279 | /** |
3280 | * snd_soc_register_card - Register a card with the ASoC core | |
3281 | * | |
ac11a2b3 | 3282 | * @card: Card to register |
c5af3a2e | 3283 | * |
c5af3a2e | 3284 | */ |
70a7ca34 | 3285 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3286 | { |
f0fba2ad LG |
3287 | int i; |
3288 | ||
c5af3a2e MB |
3289 | if (!card->name || !card->dev) |
3290 | return -EINVAL; | |
3291 | ||
111c6419 SW |
3292 | snd_soc_initialize_card_lists(card); |
3293 | ||
150dd2f8 VK |
3294 | soc_init_card_debugfs(card); |
3295 | ||
2eea392d JN |
3296 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3297 | (card->num_links + card->num_aux_devs), | |
3298 | GFP_KERNEL); | |
f0fba2ad LG |
3299 | if (card->rtd == NULL) |
3300 | return -ENOMEM; | |
2eea392d | 3301 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3302 | |
3303 | for (i = 0; i < card->num_links; i++) | |
3304 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3305 | ||
c5af3a2e MB |
3306 | INIT_LIST_HEAD(&card->list); |
3307 | card->instantiated = 0; | |
f0fba2ad | 3308 | mutex_init(&card->mutex); |
c5af3a2e MB |
3309 | |
3310 | mutex_lock(&client_mutex); | |
3311 | list_add(&card->list, &card_list); | |
435c5e25 | 3312 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3313 | mutex_unlock(&client_mutex); |
3314 | ||
3315 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3316 | ||
3317 | return 0; | |
3318 | } | |
70a7ca34 | 3319 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3320 | |
3321 | /** | |
3322 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3323 | * | |
ac11a2b3 | 3324 | * @card: Card to unregister |
c5af3a2e | 3325 | * |
c5af3a2e | 3326 | */ |
70a7ca34 | 3327 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3328 | { |
b0e26485 VK |
3329 | if (card->instantiated) |
3330 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3331 | mutex_lock(&client_mutex); |
3332 | list_del(&card->list); | |
3333 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3334 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3335 | ||
3336 | return 0; | |
3337 | } | |
70a7ca34 | 3338 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3339 | |
f0fba2ad LG |
3340 | /* |
3341 | * Simplify DAI link configuration by removing ".-1" from device names | |
3342 | * and sanitizing names. | |
3343 | */ | |
0b9a214a | 3344 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3345 | { |
3346 | char *found, name[NAME_SIZE]; | |
3347 | int id1, id2; | |
3348 | ||
3349 | if (dev_name(dev) == NULL) | |
3350 | return NULL; | |
3351 | ||
58818a77 | 3352 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3353 | |
3354 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3355 | found = strstr(name, dev->driver->name); | |
3356 | if (found) { | |
3357 | /* get ID */ | |
3358 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3359 | ||
3360 | /* discard ID from name if ID == -1 */ | |
3361 | if (*id == -1) | |
3362 | found[strlen(dev->driver->name)] = '\0'; | |
3363 | } | |
3364 | ||
3365 | } else { | |
3366 | /* I2C component devices are named "bus-addr" */ | |
3367 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3368 | char tmp[NAME_SIZE]; | |
3369 | ||
3370 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3371 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3372 | |
3373 | /* sanitize component name for DAI link creation */ | |
3374 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3375 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3376 | } else |
3377 | *id = 0; | |
3378 | } | |
3379 | ||
3380 | return kstrdup(name, GFP_KERNEL); | |
3381 | } | |
3382 | ||
3383 | /* | |
3384 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3385 | * any ".-1" and using the DAI name (instead of device name). | |
3386 | */ | |
3387 | static inline char *fmt_multiple_name(struct device *dev, | |
3388 | struct snd_soc_dai_driver *dai_drv) | |
3389 | { | |
3390 | if (dai_drv->name == NULL) { | |
3391 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3392 | dev_name(dev)); | |
3393 | return NULL; | |
3394 | } | |
3395 | ||
3396 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3397 | } | |
3398 | ||
9115171a MB |
3399 | /** |
3400 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3401 | * | |
ac11a2b3 | 3402 | * @dai: DAI to register |
9115171a | 3403 | */ |
f0fba2ad LG |
3404 | int snd_soc_register_dai(struct device *dev, |
3405 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3406 | { |
f0fba2ad LG |
3407 | struct snd_soc_dai *dai; |
3408 | ||
3409 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3410 | |
f0fba2ad LG |
3411 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3412 | if (dai == NULL) | |
3413 | return -ENOMEM; | |
9115171a | 3414 | |
f0fba2ad LG |
3415 | /* create DAI component name */ |
3416 | dai->name = fmt_single_name(dev, &dai->id); | |
3417 | if (dai->name == NULL) { | |
3418 | kfree(dai); | |
3419 | return -ENOMEM; | |
3420 | } | |
6335d055 | 3421 | |
f0fba2ad LG |
3422 | dai->dev = dev; |
3423 | dai->driver = dai_drv; | |
3424 | if (!dai->driver->ops) | |
3425 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3426 | |
3427 | mutex_lock(&client_mutex); | |
3428 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3429 | snd_soc_instantiate_cards(); |
9115171a MB |
3430 | mutex_unlock(&client_mutex); |
3431 | ||
3432 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3433 | ||
3434 | return 0; | |
3435 | } | |
3436 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3437 | ||
3438 | /** | |
3439 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3440 | * | |
ac11a2b3 | 3441 | * @dai: DAI to unregister |
9115171a | 3442 | */ |
f0fba2ad | 3443 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3444 | { |
f0fba2ad LG |
3445 | struct snd_soc_dai *dai; |
3446 | ||
3447 | list_for_each_entry(dai, &dai_list, list) { | |
3448 | if (dev == dai->dev) | |
3449 | goto found; | |
3450 | } | |
3451 | return; | |
3452 | ||
3453 | found: | |
9115171a MB |
3454 | mutex_lock(&client_mutex); |
3455 | list_del(&dai->list); | |
3456 | mutex_unlock(&client_mutex); | |
3457 | ||
3458 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3459 | kfree(dai->name); |
3460 | kfree(dai); | |
9115171a MB |
3461 | } |
3462 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3463 | ||
3464 | /** | |
3465 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3466 | * | |
ac11a2b3 MB |
3467 | * @dai: Array of DAIs to register |
3468 | * @count: Number of DAIs | |
9115171a | 3469 | */ |
f0fba2ad LG |
3470 | int snd_soc_register_dais(struct device *dev, |
3471 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3472 | { |
f0fba2ad LG |
3473 | struct snd_soc_dai *dai; |
3474 | int i, ret = 0; | |
3475 | ||
720ffa4c | 3476 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3477 | |
3478 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3479 | |
3480 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3481 | if (dai == NULL) { |
3482 | ret = -ENOMEM; | |
3483 | goto err; | |
3484 | } | |
f0fba2ad LG |
3485 | |
3486 | /* create DAI component name */ | |
3487 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3488 | if (dai->name == NULL) { | |
3489 | kfree(dai); | |
3490 | ret = -EINVAL; | |
9115171a | 3491 | goto err; |
f0fba2ad LG |
3492 | } |
3493 | ||
3494 | dai->dev = dev; | |
f0fba2ad | 3495 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3496 | if (dai->driver->id) |
3497 | dai->id = dai->driver->id; | |
3498 | else | |
3499 | dai->id = i; | |
f0fba2ad LG |
3500 | if (!dai->driver->ops) |
3501 | dai->driver->ops = &null_dai_ops; | |
3502 | ||
3503 | mutex_lock(&client_mutex); | |
3504 | list_add(&dai->list, &dai_list); | |
3505 | mutex_unlock(&client_mutex); | |
3506 | ||
3507 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3508 | } |
3509 | ||
1dcb4f38 | 3510 | mutex_lock(&client_mutex); |
f0fba2ad | 3511 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3512 | mutex_unlock(&client_mutex); |
9115171a MB |
3513 | return 0; |
3514 | ||
3515 | err: | |
3516 | for (i--; i >= 0; i--) | |
f0fba2ad | 3517 | snd_soc_unregister_dai(dev); |
9115171a MB |
3518 | |
3519 | return ret; | |
3520 | } | |
3521 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3522 | ||
3523 | /** | |
3524 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3525 | * | |
ac11a2b3 MB |
3526 | * @dai: Array of DAIs to unregister |
3527 | * @count: Number of DAIs | |
9115171a | 3528 | */ |
f0fba2ad | 3529 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3530 | { |
3531 | int i; | |
3532 | ||
3533 | for (i = 0; i < count; i++) | |
f0fba2ad | 3534 | snd_soc_unregister_dai(dev); |
9115171a MB |
3535 | } |
3536 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3537 | ||
12a48a8c MB |
3538 | /** |
3539 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3540 | * | |
ac11a2b3 | 3541 | * @platform: platform to register |
12a48a8c | 3542 | */ |
f0fba2ad LG |
3543 | int snd_soc_register_platform(struct device *dev, |
3544 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3545 | { |
f0fba2ad LG |
3546 | struct snd_soc_platform *platform; |
3547 | ||
3548 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3549 | ||
3550 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3551 | if (platform == NULL) | |
3552 | return -ENOMEM; | |
3553 | ||
3554 | /* create platform component name */ | |
3555 | platform->name = fmt_single_name(dev, &platform->id); | |
3556 | if (platform->name == NULL) { | |
3557 | kfree(platform); | |
3558 | return -ENOMEM; | |
3559 | } | |
12a48a8c | 3560 | |
f0fba2ad LG |
3561 | platform->dev = dev; |
3562 | platform->driver = platform_drv; | |
12a48a8c MB |
3563 | |
3564 | mutex_lock(&client_mutex); | |
3565 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3566 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3567 | mutex_unlock(&client_mutex); |
3568 | ||
3569 | pr_debug("Registered platform '%s'\n", platform->name); | |
3570 | ||
3571 | return 0; | |
3572 | } | |
3573 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3574 | ||
3575 | /** | |
3576 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3577 | * | |
ac11a2b3 | 3578 | * @platform: platform to unregister |
12a48a8c | 3579 | */ |
f0fba2ad | 3580 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3581 | { |
f0fba2ad LG |
3582 | struct snd_soc_platform *platform; |
3583 | ||
3584 | list_for_each_entry(platform, &platform_list, list) { | |
3585 | if (dev == platform->dev) | |
3586 | goto found; | |
3587 | } | |
3588 | return; | |
3589 | ||
3590 | found: | |
12a48a8c MB |
3591 | mutex_lock(&client_mutex); |
3592 | list_del(&platform->list); | |
3593 | mutex_unlock(&client_mutex); | |
3594 | ||
3595 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3596 | kfree(platform->name); |
3597 | kfree(platform); | |
12a48a8c MB |
3598 | } |
3599 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3600 | ||
151ab22c MB |
3601 | static u64 codec_format_map[] = { |
3602 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3603 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3604 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3605 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3606 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3607 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3608 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3609 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3610 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3611 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3612 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3613 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3614 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3615 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3616 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3617 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3618 | }; | |
3619 | ||
3620 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3621 | * the endianness of the data but we're using the CPU format | |
3622 | * definitions which do need to include endianness so we ensure that | |
3623 | * codec DAIs always have both big and little endian variants set. | |
3624 | */ | |
3625 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3626 | { | |
3627 | int i; | |
3628 | ||
3629 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3630 | if (stream->formats & codec_format_map[i]) | |
3631 | stream->formats |= codec_format_map[i]; | |
3632 | } | |
3633 | ||
0d0cf00a MB |
3634 | /** |
3635 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3636 | * | |
ac11a2b3 | 3637 | * @codec: codec to register |
0d0cf00a | 3638 | */ |
f0fba2ad | 3639 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3640 | const struct snd_soc_codec_driver *codec_drv, |
3641 | struct snd_soc_dai_driver *dai_drv, | |
3642 | int num_dai) | |
0d0cf00a | 3643 | { |
3335ddca | 3644 | size_t reg_size; |
f0fba2ad LG |
3645 | struct snd_soc_codec *codec; |
3646 | int ret, i; | |
151ab22c | 3647 | |
f0fba2ad LG |
3648 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3649 | ||
3650 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3651 | if (codec == NULL) | |
3652 | return -ENOMEM; | |
0d0cf00a | 3653 | |
f0fba2ad LG |
3654 | /* create CODEC component name */ |
3655 | codec->name = fmt_single_name(dev, &codec->id); | |
3656 | if (codec->name == NULL) { | |
3657 | kfree(codec); | |
3658 | return -ENOMEM; | |
3659 | } | |
3660 | ||
23bbce34 DP |
3661 | if (codec_drv->compress_type) |
3662 | codec->compress_type = codec_drv->compress_type; | |
3663 | else | |
3664 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3665 | ||
c3acec26 MB |
3666 | codec->write = codec_drv->write; |
3667 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3668 | codec->volatile_register = codec_drv->volatile_register; |
3669 | codec->readable_register = codec_drv->readable_register; | |
ce6120cc LG |
3670 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3671 | codec->dapm.dev = dev; | |
3672 | codec->dapm.codec = codec; | |
474b62d6 | 3673 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3674 | codec->dev = dev; |
3675 | codec->driver = codec_drv; | |
3676 | codec->num_dai = num_dai; | |
3677 | mutex_init(&codec->mutex); | |
ce6120cc | 3678 | |
f0fba2ad LG |
3679 | /* allocate CODEC register cache */ |
3680 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3681 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3682 | codec->reg_size = reg_size; |
3335ddca DP |
3683 | /* it is necessary to make a copy of the default register cache |
3684 | * because in the case of using a compression type that requires | |
3685 | * the default register cache to be marked as __devinitconst the | |
3686 | * kernel might have freed the array by the time we initialize | |
3687 | * the cache. | |
3688 | */ | |
2aa86323 DP |
3689 | if (codec_drv->reg_cache_default) { |
3690 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3691 | reg_size, GFP_KERNEL); | |
3692 | if (!codec->reg_def_copy) { | |
3693 | ret = -ENOMEM; | |
3694 | goto fail; | |
3695 | } | |
f0fba2ad | 3696 | } |
151ab22c MB |
3697 | } |
3698 | ||
1500b7b5 DP |
3699 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3700 | if (!codec->volatile_register) | |
3701 | codec->volatile_register = snd_soc_default_volatile_register; | |
3702 | if (!codec->readable_register) | |
3703 | codec->readable_register = snd_soc_default_readable_register; | |
3704 | } | |
3705 | ||
f0fba2ad LG |
3706 | for (i = 0; i < num_dai; i++) { |
3707 | fixup_codec_formats(&dai_drv[i].playback); | |
3708 | fixup_codec_formats(&dai_drv[i].capture); | |
3709 | } | |
3710 | ||
26b01ccd MB |
3711 | /* register any DAIs */ |
3712 | if (num_dai) { | |
3713 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3714 | if (ret < 0) | |
fdf0f54d | 3715 | goto fail; |
26b01ccd | 3716 | } |
f0fba2ad | 3717 | |
0d0cf00a MB |
3718 | mutex_lock(&client_mutex); |
3719 | list_add(&codec->list, &codec_list); | |
3720 | snd_soc_instantiate_cards(); | |
3721 | mutex_unlock(&client_mutex); | |
3722 | ||
3723 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3724 | return 0; |
f0fba2ad | 3725 | |
fdf0f54d | 3726 | fail: |
3335ddca DP |
3727 | kfree(codec->reg_def_copy); |
3728 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3729 | kfree(codec->name); |
3730 | kfree(codec); | |
3731 | return ret; | |
0d0cf00a MB |
3732 | } |
3733 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3734 | ||
3735 | /** | |
3736 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3737 | * | |
ac11a2b3 | 3738 | * @codec: codec to unregister |
0d0cf00a | 3739 | */ |
f0fba2ad | 3740 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3741 | { |
f0fba2ad LG |
3742 | struct snd_soc_codec *codec; |
3743 | int i; | |
3744 | ||
3745 | list_for_each_entry(codec, &codec_list, list) { | |
3746 | if (dev == codec->dev) | |
3747 | goto found; | |
3748 | } | |
3749 | return; | |
3750 | ||
3751 | found: | |
26b01ccd MB |
3752 | if (codec->num_dai) |
3753 | for (i = 0; i < codec->num_dai; i++) | |
3754 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3755 | |
0d0cf00a MB |
3756 | mutex_lock(&client_mutex); |
3757 | list_del(&codec->list); | |
3758 | mutex_unlock(&client_mutex); | |
3759 | ||
3760 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3761 | |
7a30a3db | 3762 | snd_soc_cache_exit(codec); |
3335ddca | 3763 | kfree(codec->reg_def_copy); |
1aafcd4d | 3764 | kfree(codec->name); |
f0fba2ad | 3765 | kfree(codec); |
0d0cf00a MB |
3766 | } |
3767 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3768 | ||
c9b3a40f | 3769 | static int __init snd_soc_init(void) |
db2a4165 | 3770 | { |
384c89e2 | 3771 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3772 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3773 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3774 | printk(KERN_WARNING |
3775 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3776 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3777 | } |
c3c5a19a | 3778 | |
8a9dab1a | 3779 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3780 | &codec_list_fops)) |
3781 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3782 | ||
8a9dab1a | 3783 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3784 | &dai_list_fops)) |
3785 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3786 | |
8a9dab1a | 3787 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3788 | &platform_list_fops)) |
3789 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3790 | #endif |
3791 | ||
db2a4165 FM |
3792 | return platform_driver_register(&soc_driver); |
3793 | } | |
4abe8e16 | 3794 | module_init(snd_soc_init); |
db2a4165 | 3795 | |
7d8c16a6 | 3796 | static void __exit snd_soc_exit(void) |
db2a4165 | 3797 | { |
384c89e2 | 3798 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3799 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3800 | #endif |
3ff3f64b | 3801 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3802 | } |
db2a4165 FM |
3803 | module_exit(snd_soc_exit); |
3804 | ||
3805 | /* Module information */ | |
d331124d | 3806 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3807 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3808 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3809 | MODULE_ALIAS("platform:soc-audio"); |