Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
f0e8ed85 | 33 | #include <linux/ctype.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
474828a4 | 35 | #include <sound/ac97_codec.h> |
db2a4165 | 36 | #include <sound/core.h> |
3028eb8c | 37 | #include <sound/jack.h> |
db2a4165 FM |
38 | #include <sound/pcm.h> |
39 | #include <sound/pcm_params.h> | |
40 | #include <sound/soc.h> | |
db2a4165 FM |
41 | #include <sound/initval.h> |
42 | ||
a8b1d34f MB |
43 | #define CREATE_TRACE_POINTS |
44 | #include <trace/events/asoc.h> | |
45 | ||
f0fba2ad LG |
46 | #define NAME_SIZE 32 |
47 | ||
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 | |
ddee627c | 61 | 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 | ||
25032c11 | 109 | ret = snd_soc_read(codec, reg); |
13fd179f DP |
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) { |
b92d150b | 147 | if (!snd_soc_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]; | |
34e268d8 | 245 | size_t buf_size; |
2624d5fa MB |
246 | char *start = buf; |
247 | unsigned long reg, value; | |
2624d5fa MB |
248 | struct snd_soc_codec *codec = file->private_data; |
249 | ||
250 | buf_size = min(count, (sizeof(buf)-1)); | |
251 | if (copy_from_user(buf, user_buf, buf_size)) | |
252 | return -EFAULT; | |
253 | buf[buf_size] = 0; | |
2624d5fa MB |
254 | |
255 | while (*start == ' ') | |
256 | start++; | |
257 | reg = simple_strtoul(start, &start, 16); | |
2624d5fa MB |
258 | while (*start == ' ') |
259 | start++; | |
260 | if (strict_strtoul(start, 16, &value)) | |
261 | return -EINVAL; | |
0d51a9cb MB |
262 | |
263 | /* Userspace has been fiddling around behind the kernel's back */ | |
264 | add_taint(TAINT_USER); | |
265 | ||
e4f078d8 | 266 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
267 | return buf_size; |
268 | } | |
269 | ||
270 | static const struct file_operations codec_reg_fops = { | |
271 | .open = codec_reg_open_file, | |
272 | .read = codec_reg_read_file, | |
273 | .write = codec_reg_write_file, | |
6038f373 | 274 | .llseek = default_llseek, |
2624d5fa MB |
275 | }; |
276 | ||
277 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
278 | { | |
d6ce4cf3 JN |
279 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
280 | ||
281 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
282 | debugfs_card_root); | |
2624d5fa MB |
283 | if (!codec->debugfs_codec_root) { |
284 | printk(KERN_WARNING | |
285 | "ASoC: Failed to create codec debugfs directory\n"); | |
286 | return; | |
287 | } | |
288 | ||
aaee8ef1 MB |
289 | debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root, |
290 | &codec->cache_sync); | |
291 | debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root, | |
292 | &codec->cache_only); | |
293 | ||
2624d5fa MB |
294 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, |
295 | codec->debugfs_codec_root, | |
296 | codec, &codec_reg_fops); | |
297 | if (!codec->debugfs_reg) | |
298 | printk(KERN_WARNING | |
299 | "ASoC: Failed to create codec register debugfs file\n"); | |
300 | ||
8eecaf62 | 301 | snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root); |
2624d5fa MB |
302 | } |
303 | ||
304 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
305 | { | |
306 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
307 | } | |
308 | ||
c3c5a19a MB |
309 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
310 | size_t count, loff_t *ppos) | |
311 | { | |
312 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 313 | ssize_t len, ret = 0; |
c3c5a19a MB |
314 | struct snd_soc_codec *codec; |
315 | ||
316 | if (!buf) | |
317 | return -ENOMEM; | |
318 | ||
2b194f9d MB |
319 | list_for_each_entry(codec, &codec_list, list) { |
320 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
321 | codec->name); | |
322 | if (len >= 0) | |
323 | ret += len; | |
324 | if (ret > PAGE_SIZE) { | |
325 | ret = PAGE_SIZE; | |
326 | break; | |
327 | } | |
328 | } | |
c3c5a19a MB |
329 | |
330 | if (ret >= 0) | |
331 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
332 | ||
333 | kfree(buf); | |
334 | ||
335 | return ret; | |
336 | } | |
337 | ||
338 | static const struct file_operations codec_list_fops = { | |
339 | .read = codec_list_read_file, | |
340 | .llseek = default_llseek,/* read accesses f_pos */ | |
341 | }; | |
342 | ||
f3208780 MB |
343 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
344 | size_t count, loff_t *ppos) | |
345 | { | |
346 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 347 | ssize_t len, ret = 0; |
f3208780 MB |
348 | struct snd_soc_dai *dai; |
349 | ||
350 | if (!buf) | |
351 | return -ENOMEM; | |
352 | ||
2b194f9d MB |
353 | list_for_each_entry(dai, &dai_list, list) { |
354 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
355 | if (len >= 0) | |
356 | ret += len; | |
357 | if (ret > PAGE_SIZE) { | |
358 | ret = PAGE_SIZE; | |
359 | break; | |
360 | } | |
361 | } | |
f3208780 | 362 | |
2b194f9d | 363 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
364 | |
365 | kfree(buf); | |
366 | ||
367 | return ret; | |
368 | } | |
369 | ||
370 | static const struct file_operations dai_list_fops = { | |
371 | .read = dai_list_read_file, | |
372 | .llseek = default_llseek,/* read accesses f_pos */ | |
373 | }; | |
374 | ||
19c7ac27 MB |
375 | static ssize_t platform_list_read_file(struct file *file, |
376 | char __user *user_buf, | |
377 | size_t count, loff_t *ppos) | |
378 | { | |
379 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 380 | ssize_t len, ret = 0; |
19c7ac27 MB |
381 | struct snd_soc_platform *platform; |
382 | ||
383 | if (!buf) | |
384 | return -ENOMEM; | |
385 | ||
2b194f9d MB |
386 | list_for_each_entry(platform, &platform_list, list) { |
387 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
388 | platform->name); | |
389 | if (len >= 0) | |
390 | ret += len; | |
391 | if (ret > PAGE_SIZE) { | |
392 | ret = PAGE_SIZE; | |
393 | break; | |
394 | } | |
395 | } | |
19c7ac27 | 396 | |
2b194f9d | 397 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
398 | |
399 | kfree(buf); | |
400 | ||
401 | return ret; | |
402 | } | |
403 | ||
404 | static const struct file_operations platform_list_fops = { | |
405 | .read = platform_list_read_file, | |
406 | .llseek = default_llseek,/* read accesses f_pos */ | |
407 | }; | |
408 | ||
a6052154 JN |
409 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
410 | { | |
411 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 412 | snd_soc_debugfs_root); |
3a45b867 | 413 | if (!card->debugfs_card_root) { |
a6052154 JN |
414 | dev_warn(card->dev, |
415 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
416 | return; |
417 | } | |
418 | ||
419 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
420 | card->debugfs_card_root, | |
421 | &card->pop_time); | |
422 | if (!card->debugfs_pop_time) | |
423 | dev_warn(card->dev, | |
424 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
425 | } |
426 | ||
427 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
428 | { | |
429 | debugfs_remove_recursive(card->debugfs_card_root); | |
430 | } | |
431 | ||
2624d5fa MB |
432 | #else |
433 | ||
434 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
435 | { | |
436 | } | |
437 | ||
438 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
439 | { | |
440 | } | |
b95fccbc AL |
441 | |
442 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
443 | { | |
444 | } | |
445 | ||
446 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
447 | { | |
448 | } | |
2624d5fa MB |
449 | #endif |
450 | ||
db2a4165 FM |
451 | #ifdef CONFIG_SND_SOC_AC97_BUS |
452 | /* unregister ac97 codec */ | |
453 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
454 | { | |
455 | if (codec->ac97->dev.bus) | |
456 | device_unregister(&codec->ac97->dev); | |
457 | return 0; | |
458 | } | |
459 | ||
460 | /* stop no dev release warning */ | |
461 | static void soc_ac97_device_release(struct device *dev){} | |
462 | ||
463 | /* register ac97 codec to bus */ | |
464 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
465 | { | |
466 | int err; | |
467 | ||
468 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 469 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
470 | codec->ac97->dev.release = soc_ac97_device_release; |
471 | ||
bb072bf0 | 472 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 473 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
474 | err = device_register(&codec->ac97->dev); |
475 | if (err < 0) { | |
476 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
477 | codec->ac97->dev.bus = NULL; | |
478 | return err; | |
479 | } | |
480 | return 0; | |
481 | } | |
482 | #endif | |
483 | ||
6f8ab4ac | 484 | #ifdef CONFIG_PM_SLEEP |
db2a4165 | 485 | /* powers down audio subsystem for suspend */ |
6f8ab4ac | 486 | int snd_soc_suspend(struct device *dev) |
db2a4165 | 487 | { |
6f8ab4ac | 488 | struct snd_soc_card *card = dev_get_drvdata(dev); |
2eea392d | 489 | struct snd_soc_codec *codec; |
db2a4165 FM |
490 | int i; |
491 | ||
e3509ff0 DM |
492 | /* If the initialization of this soc device failed, there is no codec |
493 | * associated with it. Just bail out in this case. | |
494 | */ | |
f0fba2ad | 495 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
496 | return 0; |
497 | ||
6ed25978 AG |
498 | /* Due to the resume being scheduled into a workqueue we could |
499 | * suspend before that's finished - wait for it to complete. | |
500 | */ | |
f0fba2ad LG |
501 | snd_power_lock(card->snd_card); |
502 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
503 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
504 | |
505 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 506 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 507 | |
a00f90f9 | 508 | /* mute any active DACs */ |
f0fba2ad LG |
509 | for (i = 0; i < card->num_rtd; i++) { |
510 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
511 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 512 | |
f0fba2ad | 513 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
514 | continue; |
515 | ||
f0fba2ad LG |
516 | if (drv->ops->digital_mute && dai->playback_active) |
517 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
518 | } |
519 | ||
4ccab3e7 | 520 | /* suspend all pcms */ |
f0fba2ad LG |
521 | for (i = 0; i < card->num_rtd; i++) { |
522 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
523 | continue; |
524 | ||
f0fba2ad | 525 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 526 | } |
4ccab3e7 | 527 | |
87506549 | 528 | if (card->suspend_pre) |
70b2ac12 | 529 | card->suspend_pre(card); |
db2a4165 | 530 | |
f0fba2ad LG |
531 | for (i = 0; i < card->num_rtd; i++) { |
532 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
533 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 534 | |
f0fba2ad | 535 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
536 | continue; |
537 | ||
f0fba2ad LG |
538 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
539 | cpu_dai->driver->suspend(cpu_dai); | |
540 | if (platform->driver->suspend && !platform->suspended) { | |
541 | platform->driver->suspend(cpu_dai); | |
542 | platform->suspended = 1; | |
543 | } | |
db2a4165 FM |
544 | } |
545 | ||
546 | /* close any waiting streams and save state */ | |
f0fba2ad | 547 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 548 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 549 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 550 | } |
db2a4165 | 551 | |
f0fba2ad LG |
552 | for (i = 0; i < card->num_rtd; i++) { |
553 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 554 | |
f0fba2ad | 555 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
556 | continue; |
557 | ||
f0fba2ad LG |
558 | if (driver->playback.stream_name != NULL) |
559 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 560 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
561 | |
562 | if (driver->capture.stream_name != NULL) | |
563 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
564 | SND_SOC_DAPM_STREAM_SUSPEND); |
565 | } | |
566 | ||
f0fba2ad | 567 | /* suspend all CODECs */ |
2eea392d | 568 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
569 | /* If there are paths active then the CODEC will be held with |
570 | * bias _ON and should not be suspended. */ | |
571 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 572 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
573 | case SND_SOC_BIAS_STANDBY: |
574 | case SND_SOC_BIAS_OFF: | |
575 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
576 | codec->suspended = 1; | |
7be4ba24 | 577 | codec->cache_sync = 1; |
f0fba2ad LG |
578 | break; |
579 | default: | |
580 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
581 | break; | |
582 | } | |
1547aba9 MB |
583 | } |
584 | } | |
db2a4165 | 585 | |
f0fba2ad LG |
586 | for (i = 0; i < card->num_rtd; i++) { |
587 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 588 | |
f0fba2ad | 589 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
590 | continue; |
591 | ||
f0fba2ad LG |
592 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
593 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
594 | } |
595 | ||
87506549 | 596 | if (card->suspend_post) |
70b2ac12 | 597 | card->suspend_post(card); |
db2a4165 FM |
598 | |
599 | return 0; | |
600 | } | |
6f8ab4ac | 601 | EXPORT_SYMBOL_GPL(snd_soc_suspend); |
db2a4165 | 602 | |
6ed25978 AG |
603 | /* deferred resume work, so resume can complete before we finished |
604 | * setting our codec back up, which can be very slow on I2C | |
605 | */ | |
606 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 607 | { |
f0fba2ad LG |
608 | struct snd_soc_card *card = |
609 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 610 | struct snd_soc_codec *codec; |
db2a4165 FM |
611 | int i; |
612 | ||
6ed25978 AG |
613 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
614 | * so userspace apps are blocked from touching us | |
615 | */ | |
616 | ||
f0fba2ad | 617 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 618 | |
9949788b | 619 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 620 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 621 | |
87506549 | 622 | if (card->resume_pre) |
70b2ac12 | 623 | card->resume_pre(card); |
db2a4165 | 624 | |
f0fba2ad LG |
625 | /* resume AC97 DAIs */ |
626 | for (i = 0; i < card->num_rtd; i++) { | |
627 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 628 | |
f0fba2ad | 629 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
630 | continue; |
631 | ||
f0fba2ad LG |
632 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
633 | cpu_dai->driver->resume(cpu_dai); | |
634 | } | |
635 | ||
2eea392d | 636 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
637 | /* If the CODEC was idle over suspend then it will have been |
638 | * left with bias OFF or STANDBY and suspended so we must now | |
639 | * resume. Otherwise the suspend was suppressed. | |
640 | */ | |
641 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 642 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
643 | case SND_SOC_BIAS_STANDBY: |
644 | case SND_SOC_BIAS_OFF: | |
645 | codec->driver->resume(codec); | |
646 | codec->suspended = 0; | |
647 | break; | |
648 | default: | |
649 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
650 | break; | |
651 | } | |
1547aba9 MB |
652 | } |
653 | } | |
db2a4165 | 654 | |
f0fba2ad LG |
655 | for (i = 0; i < card->num_rtd; i++) { |
656 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 657 | |
f0fba2ad | 658 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
659 | continue; |
660 | ||
f0fba2ad LG |
661 | if (driver->playback.stream_name != NULL) |
662 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 663 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
664 | |
665 | if (driver->capture.stream_name != NULL) | |
666 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
667 | SND_SOC_DAPM_STREAM_RESUME); |
668 | } | |
669 | ||
3ff3f64b | 670 | /* unmute any active DACs */ |
f0fba2ad LG |
671 | for (i = 0; i < card->num_rtd; i++) { |
672 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
673 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 674 | |
f0fba2ad | 675 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
676 | continue; |
677 | ||
f0fba2ad LG |
678 | if (drv->ops->digital_mute && dai->playback_active) |
679 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
680 | } |
681 | ||
f0fba2ad LG |
682 | for (i = 0; i < card->num_rtd; i++) { |
683 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
684 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 685 | |
f0fba2ad | 686 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
687 | continue; |
688 | ||
f0fba2ad LG |
689 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
690 | cpu_dai->driver->resume(cpu_dai); | |
691 | if (platform->driver->resume && platform->suspended) { | |
692 | platform->driver->resume(cpu_dai); | |
693 | platform->suspended = 0; | |
694 | } | |
db2a4165 FM |
695 | } |
696 | ||
87506549 | 697 | if (card->resume_post) |
70b2ac12 | 698 | card->resume_post(card); |
db2a4165 | 699 | |
f0fba2ad | 700 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
701 | |
702 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 703 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
704 | } |
705 | ||
706 | /* powers up audio subsystem after a suspend */ | |
6f8ab4ac | 707 | int snd_soc_resume(struct device *dev) |
6ed25978 | 708 | { |
6f8ab4ac | 709 | struct snd_soc_card *card = dev_get_drvdata(dev); |
82e14e8b | 710 | int i, ac97_control = 0; |
b9dd94a8 | 711 | |
5ff1ddf2 EM |
712 | /* If the initialization of this soc device failed, there is no codec |
713 | * associated with it. Just bail out in this case. | |
714 | */ | |
715 | if (list_empty(&card->codec_dev_list)) | |
716 | return 0; | |
717 | ||
64ab9baa MB |
718 | /* AC97 devices might have other drivers hanging off them so |
719 | * need to resume immediately. Other drivers don't have that | |
720 | * problem and may take a substantial amount of time to resume | |
721 | * due to I/O costs and anti-pop so handle them out of line. | |
722 | */ | |
f0fba2ad LG |
723 | for (i = 0; i < card->num_rtd; i++) { |
724 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
82e14e8b SW |
725 | ac97_control |= cpu_dai->driver->ac97_control; |
726 | } | |
727 | if (ac97_control) { | |
728 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
729 | soc_resume_deferred(&card->deferred_resume_work); | |
730 | } else { | |
731 | dev_dbg(dev, "Scheduling resume work\n"); | |
732 | if (!schedule_work(&card->deferred_resume_work)) | |
733 | dev_err(dev, "resume work item may be lost\n"); | |
64ab9baa | 734 | } |
6ed25978 | 735 | |
db2a4165 FM |
736 | return 0; |
737 | } | |
6f8ab4ac | 738 | EXPORT_SYMBOL_GPL(snd_soc_resume); |
db2a4165 | 739 | #else |
6f8ab4ac MB |
740 | #define snd_soc_suspend NULL |
741 | #define snd_soc_resume NULL | |
db2a4165 FM |
742 | #endif |
743 | ||
85e7652d | 744 | static const struct snd_soc_dai_ops null_dai_ops = { |
02a06d30 BS |
745 | }; |
746 | ||
f0fba2ad | 747 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 748 | { |
f0fba2ad LG |
749 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
750 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 751 | struct snd_soc_codec *codec; |
435c5e25 | 752 | struct snd_soc_platform *platform; |
f0fba2ad | 753 | struct snd_soc_dai *codec_dai, *cpu_dai; |
848dd8be | 754 | const char *platform_name; |
435c5e25 | 755 | |
f0fba2ad LG |
756 | if (rtd->complete) |
757 | return 1; | |
758 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 759 | |
f0fba2ad LG |
760 | /* do we already have the CPU DAI for this link ? */ |
761 | if (rtd->cpu_dai) { | |
762 | goto find_codec; | |
763 | } | |
764 | /* no, then find CPU DAI from registered DAIs*/ | |
765 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
766 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
f0fba2ad LG |
767 | rtd->cpu_dai = cpu_dai; |
768 | goto find_codec; | |
435c5e25 | 769 | } |
435c5e25 | 770 | } |
f0fba2ad LG |
771 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
772 | dai_link->cpu_dai_name); | |
6308419a | 773 | |
f0fba2ad LG |
774 | find_codec: |
775 | /* do we already have the CODEC for this link ? */ | |
776 | if (rtd->codec) { | |
777 | goto find_platform; | |
778 | } | |
779 | ||
780 | /* no, then find CODEC from registered CODECs*/ | |
781 | list_for_each_entry(codec, &codec_list, list) { | |
782 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
783 | rtd->codec = codec; | |
784 | ||
f0fba2ad LG |
785 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
786 | list_for_each_entry(codec_dai, &dai_list, list) { | |
787 | if (codec->dev == codec_dai->dev && | |
788 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
789 | rtd->codec_dai = codec_dai; | |
790 | goto find_platform; | |
791 | } | |
435c5e25 | 792 | } |
f0fba2ad LG |
793 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
794 | dai_link->codec_dai_name); | |
795 | ||
796 | goto find_platform; | |
435c5e25 | 797 | } |
f0fba2ad LG |
798 | } |
799 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
800 | dai_link->codec_name); | |
6b05eda6 | 801 | |
f0fba2ad | 802 | find_platform: |
848dd8be MB |
803 | /* do we need a platform? */ |
804 | if (rtd->platform) | |
f0fba2ad | 805 | goto out; |
848dd8be MB |
806 | |
807 | /* if there's no platform we match on the empty platform */ | |
808 | platform_name = dai_link->platform_name; | |
809 | if (!platform_name) | |
810 | platform_name = "snd-soc-dummy"; | |
811 | ||
812 | /* no, then find one from the set of registered platforms */ | |
f0fba2ad | 813 | list_for_each_entry(platform, &platform_list, list) { |
848dd8be | 814 | if (!strcmp(platform->name, platform_name)) { |
f0fba2ad LG |
815 | rtd->platform = platform; |
816 | goto out; | |
817 | } | |
02a06d30 BS |
818 | } |
819 | ||
f0fba2ad LG |
820 | dev_dbg(card->dev, "platform %s not registered\n", |
821 | dai_link->platform_name); | |
822 | return 0; | |
823 | ||
824 | out: | |
825 | /* mark rtd as complete if we found all 4 of our client devices */ | |
826 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
827 | rtd->complete = 1; | |
828 | card->num_rtd++; | |
829 | } | |
830 | return 1; | |
831 | } | |
832 | ||
589c3563 JN |
833 | static void soc_remove_codec(struct snd_soc_codec *codec) |
834 | { | |
835 | int err; | |
836 | ||
837 | if (codec->driver->remove) { | |
838 | err = codec->driver->remove(codec); | |
839 | if (err < 0) | |
840 | dev_err(codec->dev, | |
841 | "asoc: failed to remove %s: %d\n", | |
842 | codec->name, err); | |
843 | } | |
844 | ||
845 | /* Make sure all DAPM widgets are freed */ | |
846 | snd_soc_dapm_free(&codec->dapm); | |
847 | ||
848 | soc_cleanup_codec_debugfs(codec); | |
849 | codec->probed = 0; | |
850 | list_del(&codec->card_list); | |
851 | module_put(codec->dev->driver->owner); | |
852 | } | |
853 | ||
0168bf0d | 854 | static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
855 | { |
856 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
857 | struct snd_soc_codec *codec = rtd->codec; | |
858 | struct snd_soc_platform *platform = rtd->platform; | |
859 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
860 | int err; | |
861 | ||
862 | /* unregister the rtd device */ | |
863 | if (rtd->dev_registered) { | |
864 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 865 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
866 | device_unregister(&rtd->dev); |
867 | rtd->dev_registered = 0; | |
868 | } | |
869 | ||
870 | /* remove the CODEC DAI */ | |
0168bf0d LG |
871 | if (codec_dai && codec_dai->probed && |
872 | codec_dai->driver->remove_order == order) { | |
f0fba2ad LG |
873 | if (codec_dai->driver->remove) { |
874 | err = codec_dai->driver->remove(codec_dai); | |
875 | if (err < 0) | |
876 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 877 | } |
f0fba2ad LG |
878 | codec_dai->probed = 0; |
879 | list_del(&codec_dai->card_list); | |
880 | } | |
6b05eda6 | 881 | |
f0fba2ad | 882 | /* remove the platform */ |
0168bf0d LG |
883 | if (platform && platform->probed && |
884 | platform->driver->remove_order == order) { | |
f0fba2ad LG |
885 | if (platform->driver->remove) { |
886 | err = platform->driver->remove(platform); | |
887 | if (err < 0) | |
888 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
889 | } | |
890 | platform->probed = 0; | |
891 | list_del(&platform->card_list); | |
892 | module_put(platform->dev->driver->owner); | |
893 | } | |
435c5e25 | 894 | |
f0fba2ad | 895 | /* remove the CODEC */ |
0168bf0d LG |
896 | if (codec && codec->probed && |
897 | codec->driver->remove_order == order) | |
589c3563 | 898 | soc_remove_codec(codec); |
db2a4165 | 899 | |
f0fba2ad | 900 | /* remove the cpu_dai */ |
0168bf0d LG |
901 | if (cpu_dai && cpu_dai->probed && |
902 | cpu_dai->driver->remove_order == order) { | |
f0fba2ad LG |
903 | if (cpu_dai->driver->remove) { |
904 | err = cpu_dai->driver->remove(cpu_dai); | |
905 | if (err < 0) | |
906 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 907 | } |
f0fba2ad LG |
908 | cpu_dai->probed = 0; |
909 | list_del(&cpu_dai->card_list); | |
910 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 911 | } |
f0fba2ad | 912 | } |
db2a4165 | 913 | |
0671fd8e KM |
914 | static void soc_remove_dai_links(struct snd_soc_card *card) |
915 | { | |
0168bf0d | 916 | int dai, order; |
0671fd8e | 917 | |
0168bf0d LG |
918 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; |
919 | order++) { | |
920 | for (dai = 0; dai < card->num_rtd; dai++) | |
921 | soc_remove_dai_link(card, dai, order); | |
922 | } | |
0671fd8e KM |
923 | card->num_rtd = 0; |
924 | } | |
925 | ||
ead9b919 JN |
926 | static void soc_set_name_prefix(struct snd_soc_card *card, |
927 | struct snd_soc_codec *codec) | |
928 | { | |
929 | int i; | |
930 | ||
ff819b83 | 931 | if (card->codec_conf == NULL) |
ead9b919 JN |
932 | return; |
933 | ||
ff819b83 DP |
934 | for (i = 0; i < card->num_configs; i++) { |
935 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
936 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
937 | codec->name_prefix = map->name_prefix; | |
938 | break; | |
939 | } | |
940 | } | |
941 | } | |
942 | ||
589c3563 JN |
943 | static int soc_probe_codec(struct snd_soc_card *card, |
944 | struct snd_soc_codec *codec) | |
945 | { | |
946 | int ret = 0; | |
89b95ac0 | 947 | const struct snd_soc_codec_driver *driver = codec->driver; |
589c3563 JN |
948 | |
949 | codec->card = card; | |
950 | codec->dapm.card = card; | |
951 | soc_set_name_prefix(card, codec); | |
952 | ||
70d29331 JN |
953 | if (!try_module_get(codec->dev->driver->owner)) |
954 | return -ENODEV; | |
955 | ||
d5d1e0be LPC |
956 | soc_init_codec_debugfs(codec); |
957 | ||
77530150 LPC |
958 | if (driver->dapm_widgets) |
959 | snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets, | |
960 | driver->num_dapm_widgets); | |
961 | ||
33c5f969 MB |
962 | codec->dapm.idle_bias_off = driver->idle_bias_off; |
963 | ||
89b95ac0 MB |
964 | if (driver->probe) { |
965 | ret = driver->probe(codec); | |
589c3563 JN |
966 | if (ret < 0) { |
967 | dev_err(codec->dev, | |
968 | "asoc: failed to probe CODEC %s: %d\n", | |
969 | codec->name, ret); | |
70d29331 | 970 | goto err_probe; |
589c3563 JN |
971 | } |
972 | } | |
973 | ||
b7af1daf MB |
974 | if (driver->controls) |
975 | snd_soc_add_controls(codec, driver->controls, | |
976 | driver->num_controls); | |
89b95ac0 MB |
977 | if (driver->dapm_routes) |
978 | snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes, | |
979 | driver->num_dapm_routes); | |
980 | ||
589c3563 JN |
981 | /* mark codec as probed and add to card codec list */ |
982 | codec->probed = 1; | |
983 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 984 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 | 985 | |
70d29331 JN |
986 | return 0; |
987 | ||
988 | err_probe: | |
d5d1e0be | 989 | soc_cleanup_codec_debugfs(codec); |
70d29331 JN |
990 | module_put(codec->dev->driver->owner); |
991 | ||
589c3563 JN |
992 | return ret; |
993 | } | |
994 | ||
956245e9 LG |
995 | static int soc_probe_platform(struct snd_soc_card *card, |
996 | struct snd_soc_platform *platform) | |
997 | { | |
998 | int ret = 0; | |
999 | const struct snd_soc_platform_driver *driver = platform->driver; | |
1000 | ||
1001 | platform->card = card; | |
b7950641 | 1002 | platform->dapm.card = card; |
956245e9 LG |
1003 | |
1004 | if (!try_module_get(platform->dev->driver->owner)) | |
1005 | return -ENODEV; | |
1006 | ||
cb2cf612 LG |
1007 | if (driver->dapm_widgets) |
1008 | snd_soc_dapm_new_controls(&platform->dapm, | |
1009 | driver->dapm_widgets, driver->num_dapm_widgets); | |
1010 | ||
956245e9 LG |
1011 | if (driver->probe) { |
1012 | ret = driver->probe(platform); | |
1013 | if (ret < 0) { | |
1014 | dev_err(platform->dev, | |
1015 | "asoc: failed to probe platform %s: %d\n", | |
1016 | platform->name, ret); | |
1017 | goto err_probe; | |
1018 | } | |
1019 | } | |
1020 | ||
cb2cf612 LG |
1021 | if (driver->controls) |
1022 | snd_soc_add_platform_controls(platform, driver->controls, | |
1023 | driver->num_controls); | |
1024 | if (driver->dapm_routes) | |
1025 | snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes, | |
1026 | driver->num_dapm_routes); | |
1027 | ||
956245e9 LG |
1028 | /* mark platform as probed and add to card platform list */ |
1029 | platform->probed = 1; | |
1030 | list_add(&platform->card_list, &card->platform_dev_list); | |
b7950641 | 1031 | list_add(&platform->dapm.list, &card->dapm_list); |
956245e9 LG |
1032 | |
1033 | return 0; | |
1034 | ||
1035 | err_probe: | |
1036 | module_put(platform->dev->driver->owner); | |
1037 | ||
1038 | return ret; | |
1039 | } | |
1040 | ||
f0fba2ad LG |
1041 | static void rtd_release(struct device *dev) {} |
1042 | ||
589c3563 JN |
1043 | static int soc_post_component_init(struct snd_soc_card *card, |
1044 | struct snd_soc_codec *codec, | |
1045 | int num, int dailess) | |
1046 | { | |
1047 | struct snd_soc_dai_link *dai_link = NULL; | |
1048 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1049 | struct snd_soc_pcm_runtime *rtd; | |
1050 | const char *temp, *name; | |
1051 | int ret = 0; | |
1052 | ||
1053 | if (!dailess) { | |
1054 | dai_link = &card->dai_link[num]; | |
1055 | rtd = &card->rtd[num]; | |
1056 | name = dai_link->name; | |
1057 | } else { | |
1058 | aux_dev = &card->aux_dev[num]; | |
1059 | rtd = &card->rtd_aux[num]; | |
1060 | name = aux_dev->name; | |
1061 | } | |
0962bb21 | 1062 | rtd->card = card; |
589c3563 | 1063 | |
4b1cfcb4 MB |
1064 | /* Make sure all DAPM widgets are instantiated */ |
1065 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1066 | ||
589c3563 JN |
1067 | /* machine controls, routes and widgets are not prefixed */ |
1068 | temp = codec->name_prefix; | |
1069 | codec->name_prefix = NULL; | |
1070 | ||
1071 | /* do machine specific initialization */ | |
1072 | if (!dailess && dai_link->init) | |
1073 | ret = dai_link->init(rtd); | |
1074 | else if (dailess && aux_dev->init) | |
1075 | ret = aux_dev->init(&codec->dapm); | |
1076 | if (ret < 0) { | |
1077 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1078 | return ret; | |
1079 | } | |
1080 | codec->name_prefix = temp; | |
1081 | ||
589c3563 JN |
1082 | /* register the rtd device */ |
1083 | rtd->codec = codec; | |
589c3563 JN |
1084 | rtd->dev.parent = card->dev; |
1085 | rtd->dev.release = rtd_release; | |
1086 | rtd->dev.init_name = name; | |
b8c0dab9 | 1087 | mutex_init(&rtd->pcm_mutex); |
589c3563 JN |
1088 | ret = device_register(&rtd->dev); |
1089 | if (ret < 0) { | |
1090 | dev_err(card->dev, | |
1091 | "asoc: failed to register runtime device: %d\n", ret); | |
1092 | return ret; | |
1093 | } | |
1094 | rtd->dev_registered = 1; | |
1095 | ||
1096 | /* add DAPM sysfs entries for this codec */ | |
1097 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1098 | if (ret < 0) | |
1099 | dev_err(codec->dev, | |
1100 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1101 | ret); | |
1102 | ||
1103 | /* add codec sysfs entries */ | |
1104 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1105 | if (ret < 0) | |
1106 | dev_err(codec->dev, | |
1107 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1108 | ||
1109 | return 0; | |
1110 | } | |
1111 | ||
0168bf0d | 1112 | static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order) |
f0fba2ad LG |
1113 | { |
1114 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1115 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1116 | struct snd_soc_codec *codec = rtd->codec; | |
1117 | struct snd_soc_platform *platform = rtd->platform; | |
1118 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1119 | int ret; | |
1120 | ||
0168bf0d LG |
1121 | dev_dbg(card->dev, "probe %s dai link %d late %d\n", |
1122 | card->name, num, order); | |
f0fba2ad LG |
1123 | |
1124 | /* config components */ | |
1125 | codec_dai->codec = codec; | |
f0fba2ad | 1126 | cpu_dai->platform = platform; |
f0fba2ad LG |
1127 | codec_dai->card = card; |
1128 | cpu_dai->card = card; | |
1129 | ||
1130 | /* set default power off timeout */ | |
1131 | rtd->pmdown_time = pmdown_time; | |
1132 | ||
1133 | /* probe the cpu_dai */ | |
0168bf0d LG |
1134 | if (!cpu_dai->probed && |
1135 | cpu_dai->driver->probe_order == order) { | |
61b61e3c LG |
1136 | if (!try_module_get(cpu_dai->dev->driver->owner)) |
1137 | return -ENODEV; | |
1138 | ||
f0fba2ad LG |
1139 | if (cpu_dai->driver->probe) { |
1140 | ret = cpu_dai->driver->probe(cpu_dai); | |
1141 | if (ret < 0) { | |
1142 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1143 | cpu_dai->name); | |
61b61e3c | 1144 | module_put(cpu_dai->dev->driver->owner); |
f0fba2ad LG |
1145 | return ret; |
1146 | } | |
1147 | } | |
1148 | cpu_dai->probed = 1; | |
1c8371d6 | 1149 | /* mark cpu_dai as probed and add to card dai list */ |
f0fba2ad | 1150 | list_add(&cpu_dai->card_list, &card->dai_dev_list); |
db2a4165 FM |
1151 | } |
1152 | ||
f0fba2ad | 1153 | /* probe the CODEC */ |
0168bf0d LG |
1154 | if (!codec->probed && |
1155 | codec->driver->probe_order == order) { | |
589c3563 JN |
1156 | ret = soc_probe_codec(card, codec); |
1157 | if (ret < 0) | |
1158 | return ret; | |
db2a4165 FM |
1159 | } |
1160 | ||
f0fba2ad | 1161 | /* probe the platform */ |
0168bf0d LG |
1162 | if (!platform->probed && |
1163 | platform->driver->probe_order == order) { | |
956245e9 LG |
1164 | ret = soc_probe_platform(card, platform); |
1165 | if (ret < 0) | |
1166 | return ret; | |
f0fba2ad | 1167 | } |
6ed25978 | 1168 | |
f0fba2ad | 1169 | /* probe the CODEC DAI */ |
0168bf0d | 1170 | if (!codec_dai->probed && codec_dai->driver->probe_order == order) { |
f0fba2ad LG |
1171 | if (codec_dai->driver->probe) { |
1172 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1173 | if (ret < 0) { |
f0fba2ad LG |
1174 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1175 | codec_dai->name); | |
1176 | return ret; | |
fe3e78e0 MB |
1177 | } |
1178 | } | |
f0fba2ad | 1179 | |
1c8371d6 | 1180 | /* mark codec_dai as probed and add to card dai list */ |
f0fba2ad LG |
1181 | codec_dai->probed = 1; |
1182 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1183 | } |
1184 | ||
0168bf0d LG |
1185 | /* complete DAI probe during last probe */ |
1186 | if (order != SND_SOC_COMP_ORDER_LAST) | |
1187 | return 0; | |
1188 | ||
589c3563 JN |
1189 | ret = soc_post_component_init(card, codec, num, 0); |
1190 | if (ret) | |
f0fba2ad | 1191 | return ret; |
fe3e78e0 | 1192 | |
f0fba2ad LG |
1193 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1194 | if (ret < 0) | |
1195 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1196 | ||
f0fba2ad LG |
1197 | /* create the pcm */ |
1198 | ret = soc_new_pcm(rtd, num); | |
1199 | if (ret < 0) { | |
1200 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1201 | return ret; | |
1202 | } | |
1203 | ||
1204 | /* add platform data for AC97 devices */ | |
1205 | if (rtd->codec_dai->driver->ac97_control) | |
1206 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1207 | ||
1208 | return 0; | |
1209 | } | |
1210 | ||
fe3e78e0 | 1211 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1212 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1213 | { | |
1214 | int ret; | |
1215 | ||
fe3e78e0 MB |
1216 | /* Only instantiate AC97 if not already done by the adaptor |
1217 | * for the generic AC97 subsystem. | |
1218 | */ | |
f0fba2ad | 1219 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1220 | /* |
1221 | * It is possible that the AC97 device is already registered to | |
1222 | * the device subsystem. This happens when the device is created | |
1223 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1224 | * is the generic AC97 glue but others migh emerge. | |
1225 | * | |
1226 | * In those cases we don't try to register the device again. | |
1227 | */ | |
1228 | if (!rtd->codec->ac97_created) | |
1229 | return 0; | |
f0fba2ad LG |
1230 | |
1231 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1232 | if (ret < 0) { |
1233 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1234 | return ret; |
fe3e78e0 | 1235 | } |
f0fba2ad LG |
1236 | |
1237 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1238 | } |
f0fba2ad LG |
1239 | return 0; |
1240 | } | |
1241 | ||
1242 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1243 | { | |
1244 | if (codec->ac97_registered) { | |
1245 | soc_ac97_dev_unregister(codec); | |
1246 | codec->ac97_registered = 0; | |
1247 | } | |
1248 | } | |
fe3e78e0 MB |
1249 | #endif |
1250 | ||
2eea392d JN |
1251 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1252 | { | |
1253 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1254 | struct snd_soc_codec *codec; |
676ad98a | 1255 | int ret = -ENODEV; |
2eea392d JN |
1256 | |
1257 | /* find CODEC from registered CODECs*/ | |
1258 | list_for_each_entry(codec, &codec_list, list) { | |
1259 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1260 | if (codec->probed) { | |
1261 | dev_err(codec->dev, | |
1262 | "asoc: codec already probed"); | |
1263 | ret = -EBUSY; | |
1264 | goto out; | |
1265 | } | |
676ad98a | 1266 | goto found; |
2eea392d JN |
1267 | } |
1268 | } | |
676ad98a JN |
1269 | /* codec not found */ |
1270 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1271 | goto out; | |
2eea392d | 1272 | |
676ad98a | 1273 | found: |
589c3563 | 1274 | ret = soc_probe_codec(card, codec); |
2eea392d | 1275 | if (ret < 0) |
589c3563 | 1276 | return ret; |
2eea392d | 1277 | |
589c3563 | 1278 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1279 | |
1280 | out: | |
1281 | return ret; | |
1282 | } | |
1283 | ||
1284 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1285 | { | |
1286 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1287 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1288 | |
1289 | /* unregister the rtd device */ | |
1290 | if (rtd->dev_registered) { | |
589c3563 | 1291 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1292 | device_unregister(&rtd->dev); |
1293 | rtd->dev_registered = 0; | |
1294 | } | |
1295 | ||
589c3563 JN |
1296 | if (codec && codec->probed) |
1297 | soc_remove_codec(codec); | |
2eea392d JN |
1298 | } |
1299 | ||
fdf0f54d DP |
1300 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1301 | enum snd_soc_compress_type compress_type) | |
1302 | { | |
1303 | int ret; | |
1304 | ||
1305 | if (codec->cache_init) | |
1306 | return 0; | |
1307 | ||
1308 | /* override the compress_type if necessary */ | |
1309 | if (compress_type && codec->compress_type != compress_type) | |
1310 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1311 | ret = snd_soc_cache_init(codec); |
1312 | if (ret < 0) { | |
1313 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1314 | ret); | |
1315 | return ret; | |
1316 | } | |
1317 | codec->cache_init = 1; | |
1318 | return 0; | |
1319 | } | |
1320 | ||
f0fba2ad LG |
1321 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1322 | { | |
fdf0f54d DP |
1323 | struct snd_soc_codec *codec; |
1324 | struct snd_soc_codec_conf *codec_conf; | |
1325 | enum snd_soc_compress_type compress_type; | |
75d9ac46 | 1326 | struct snd_soc_dai_link *dai_link; |
0168bf0d | 1327 | int ret, i, order; |
fe3e78e0 | 1328 | |
f0fba2ad | 1329 | mutex_lock(&card->mutex); |
dbe21408 | 1330 | |
f0fba2ad LG |
1331 | if (card->instantiated) { |
1332 | mutex_unlock(&card->mutex); | |
1333 | return; | |
1334 | } | |
fe3e78e0 | 1335 | |
f0fba2ad LG |
1336 | /* bind DAIs */ |
1337 | for (i = 0; i < card->num_links; i++) | |
1338 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1339 | |
f0fba2ad LG |
1340 | /* bind completed ? */ |
1341 | if (card->num_rtd != card->num_links) { | |
1342 | mutex_unlock(&card->mutex); | |
1343 | return; | |
1344 | } | |
435c5e25 | 1345 | |
fdf0f54d DP |
1346 | /* initialize the register cache for each available codec */ |
1347 | list_for_each_entry(codec, &codec_list, list) { | |
1348 | if (codec->cache_init) | |
1349 | continue; | |
861f2faf DP |
1350 | /* by default we don't override the compress_type */ |
1351 | compress_type = 0; | |
fdf0f54d DP |
1352 | /* check to see if we need to override the compress_type */ |
1353 | for (i = 0; i < card->num_configs; ++i) { | |
1354 | codec_conf = &card->codec_conf[i]; | |
1355 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1356 | compress_type = codec_conf->compress_type; | |
1357 | if (compress_type && compress_type | |
1358 | != codec->compress_type) | |
1359 | break; | |
1360 | } | |
1361 | } | |
fdf0f54d DP |
1362 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1363 | if (ret < 0) { | |
1364 | mutex_unlock(&card->mutex); | |
1365 | return; | |
1366 | } | |
1367 | } | |
1368 | ||
f0fba2ad LG |
1369 | /* card bind complete so register a sound card */ |
1370 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1371 | card->owner, 0, &card->snd_card); | |
1372 | if (ret < 0) { | |
1373 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1374 | card->name); | |
1375 | mutex_unlock(&card->mutex); | |
1376 | return; | |
1377 | } | |
1378 | card->snd_card->dev = card->dev; | |
1379 | ||
e37a4970 MB |
1380 | card->dapm.bias_level = SND_SOC_BIAS_OFF; |
1381 | card->dapm.dev = card->dev; | |
1382 | card->dapm.card = card; | |
1383 | list_add(&card->dapm.list, &card->dapm_list); | |
1384 | ||
d5d1e0be LPC |
1385 | #ifdef CONFIG_DEBUG_FS |
1386 | snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); | |
1387 | #endif | |
1388 | ||
88ee1c61 | 1389 | #ifdef CONFIG_PM_SLEEP |
f0fba2ad LG |
1390 | /* deferred resume work */ |
1391 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1392 | #endif | |
db2a4165 | 1393 | |
9a841ebb MB |
1394 | if (card->dapm_widgets) |
1395 | snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets, | |
1396 | card->num_dapm_widgets); | |
1397 | ||
f0fba2ad LG |
1398 | /* initialise the sound card only once */ |
1399 | if (card->probe) { | |
e7361ec4 | 1400 | ret = card->probe(card); |
f0fba2ad LG |
1401 | if (ret < 0) |
1402 | goto card_probe_error; | |
1403 | } | |
fe3e78e0 | 1404 | |
0168bf0d LG |
1405 | /* early DAI link probe */ |
1406 | for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; | |
1407 | order++) { | |
1408 | for (i = 0; i < card->num_links; i++) { | |
1409 | ret = soc_probe_dai_link(card, i, order); | |
1410 | if (ret < 0) { | |
1411 | pr_err("asoc: failed to instantiate card %s: %d\n", | |
321de0d0 | 1412 | card->name, ret); |
0168bf0d LG |
1413 | goto probe_dai_err; |
1414 | } | |
f0fba2ad LG |
1415 | } |
1416 | } | |
db2a4165 | 1417 | |
2eea392d JN |
1418 | for (i = 0; i < card->num_aux_devs; i++) { |
1419 | ret = soc_probe_aux_dev(card, i); | |
1420 | if (ret < 0) { | |
1421 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1422 | card->name, ret); | |
1423 | goto probe_aux_dev_err; | |
1424 | } | |
1425 | } | |
1426 | ||
b7af1daf MB |
1427 | /* We should have a non-codec control add function but we don't */ |
1428 | if (card->controls) | |
1429 | snd_soc_add_controls(list_first_entry(&card->codec_dev_list, | |
1430 | struct snd_soc_codec, | |
1431 | card_list), | |
1432 | card->controls, | |
1433 | card->num_controls); | |
1434 | ||
b8ad29de MB |
1435 | if (card->dapm_routes) |
1436 | snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes, | |
1437 | card->num_dapm_routes); | |
1438 | ||
b90d2f90 MB |
1439 | snd_soc_dapm_new_widgets(&card->dapm); |
1440 | ||
75d9ac46 MB |
1441 | for (i = 0; i < card->num_links; i++) { |
1442 | dai_link = &card->dai_link[i]; | |
1443 | ||
1444 | if (dai_link->dai_fmt) { | |
1445 | ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai, | |
1446 | dai_link->dai_fmt); | |
1447 | if (ret != 0) | |
1448 | dev_warn(card->rtd[i].codec_dai->dev, | |
1449 | "Failed to set DAI format: %d\n", | |
1450 | ret); | |
1451 | ||
1452 | ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai, | |
1453 | dai_link->dai_fmt); | |
1454 | if (ret != 0) | |
1455 | dev_warn(card->rtd[i].cpu_dai->dev, | |
1456 | "Failed to set DAI format: %d\n", | |
1457 | ret); | |
1458 | } | |
1459 | } | |
1460 | ||
f0fba2ad | 1461 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
f0fba2ad | 1462 | "%s", card->name); |
22de71ba LG |
1463 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), |
1464 | "%s", card->long_name ? card->long_name : card->name); | |
f0e8ed85 MB |
1465 | snprintf(card->snd_card->driver, sizeof(card->snd_card->driver), |
1466 | "%s", card->driver_name ? card->driver_name : card->name); | |
1467 | for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) { | |
1468 | switch (card->snd_card->driver[i]) { | |
1469 | case '_': | |
1470 | case '-': | |
1471 | case '\0': | |
1472 | break; | |
1473 | default: | |
1474 | if (!isalnum(card->snd_card->driver[i])) | |
1475 | card->snd_card->driver[i] = '_'; | |
1476 | break; | |
1477 | } | |
1478 | } | |
f0fba2ad | 1479 | |
28e9ad92 MB |
1480 | if (card->late_probe) { |
1481 | ret = card->late_probe(card); | |
1482 | if (ret < 0) { | |
1483 | dev_err(card->dev, "%s late_probe() failed: %d\n", | |
1484 | card->name, ret); | |
1485 | goto probe_aux_dev_err; | |
1486 | } | |
1487 | } | |
1488 | ||
2dc00213 MB |
1489 | snd_soc_dapm_new_widgets(&card->dapm); |
1490 | ||
1633281b | 1491 | if (card->fully_routed) |
b05d8dc1 | 1492 | list_for_each_entry(codec, &card->codec_dev_list, card_list) |
1633281b SW |
1493 | snd_soc_dapm_auto_nc_codec_pins(codec); |
1494 | ||
f0fba2ad LG |
1495 | ret = snd_card_register(card->snd_card); |
1496 | if (ret < 0) { | |
1497 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1498 | goto probe_aux_dev_err; |
db2a4165 FM |
1499 | } |
1500 | ||
f0fba2ad LG |
1501 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1502 | /* register any AC97 codecs */ | |
1503 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1504 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1505 | if (ret < 0) { | |
1506 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1507 | while (--i >= 0) | |
7d8316df | 1508 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1509 | goto probe_aux_dev_err; |
f0fba2ad | 1510 | } |
6b3ed785 | 1511 | } |
f0fba2ad LG |
1512 | #endif |
1513 | ||
1514 | card->instantiated = 1; | |
4f4c0072 | 1515 | snd_soc_dapm_sync(&card->dapm); |
f0fba2ad LG |
1516 | mutex_unlock(&card->mutex); |
1517 | return; | |
1518 | ||
2eea392d JN |
1519 | probe_aux_dev_err: |
1520 | for (i = 0; i < card->num_aux_devs; i++) | |
1521 | soc_remove_aux_dev(card, i); | |
1522 | ||
f0fba2ad | 1523 | probe_dai_err: |
0671fd8e | 1524 | soc_remove_dai_links(card); |
f0fba2ad LG |
1525 | |
1526 | card_probe_error: | |
87506549 | 1527 | if (card->remove) |
e7361ec4 | 1528 | card->remove(card); |
f0fba2ad LG |
1529 | |
1530 | snd_card_free(card->snd_card); | |
1531 | ||
1532 | mutex_unlock(&card->mutex); | |
435c5e25 | 1533 | } |
db2a4165 | 1534 | |
435c5e25 | 1535 | /* |
421f91d2 | 1536 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1537 | * client_mutex. |
1538 | */ | |
1539 | static void snd_soc_instantiate_cards(void) | |
1540 | { | |
1541 | struct snd_soc_card *card; | |
1542 | list_for_each_entry(card, &card_list, list) | |
1543 | snd_soc_instantiate_card(card); | |
1544 | } | |
1545 | ||
1546 | /* probes a new socdev */ | |
1547 | static int soc_probe(struct platform_device *pdev) | |
1548 | { | |
f0fba2ad | 1549 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1550 | int ret = 0; |
435c5e25 | 1551 | |
70a7ca34 VK |
1552 | /* |
1553 | * no card, so machine driver should be registering card | |
1554 | * we should not be here in that case so ret error | |
1555 | */ | |
1556 | if (!card) | |
1557 | return -EINVAL; | |
1558 | ||
435c5e25 MB |
1559 | /* Bodge while we unpick instantiation */ |
1560 | card->dev = &pdev->dev; | |
f0fba2ad | 1561 | |
435c5e25 MB |
1562 | ret = snd_soc_register_card(card); |
1563 | if (ret != 0) { | |
1564 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1565 | return ret; | |
1566 | } | |
1567 | ||
1568 | return 0; | |
db2a4165 FM |
1569 | } |
1570 | ||
b0e26485 | 1571 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1572 | { |
1573 | int i; | |
db2a4165 | 1574 | |
b0e26485 VK |
1575 | /* make sure any delayed work runs */ |
1576 | for (i = 0; i < card->num_rtd; i++) { | |
1577 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1578 | flush_delayed_work_sync(&rtd->delayed_work); | |
1579 | } | |
914dc182 | 1580 | |
b0e26485 VK |
1581 | /* remove auxiliary devices */ |
1582 | for (i = 0; i < card->num_aux_devs; i++) | |
1583 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1584 | |
b0e26485 | 1585 | /* remove and free each DAI */ |
0671fd8e | 1586 | soc_remove_dai_links(card); |
2eea392d | 1587 | |
b0e26485 | 1588 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1589 | |
b0e26485 VK |
1590 | /* remove the card */ |
1591 | if (card->remove) | |
e7361ec4 | 1592 | card->remove(card); |
a6052154 | 1593 | |
0aaae527 LPC |
1594 | snd_soc_dapm_free(&card->dapm); |
1595 | ||
b0e26485 VK |
1596 | kfree(card->rtd); |
1597 | snd_card_free(card->snd_card); | |
1598 | return 0; | |
1599 | ||
1600 | } | |
1601 | ||
1602 | /* removes a socdev */ | |
1603 | static int soc_remove(struct platform_device *pdev) | |
1604 | { | |
1605 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1606 | |
c5af3a2e | 1607 | snd_soc_unregister_card(card); |
db2a4165 FM |
1608 | return 0; |
1609 | } | |
1610 | ||
6f8ab4ac | 1611 | int snd_soc_poweroff(struct device *dev) |
51737470 | 1612 | { |
6f8ab4ac | 1613 | struct snd_soc_card *card = dev_get_drvdata(dev); |
f0fba2ad | 1614 | int i; |
51737470 MB |
1615 | |
1616 | if (!card->instantiated) | |
416356fc | 1617 | return 0; |
51737470 MB |
1618 | |
1619 | /* Flush out pmdown_time work - we actually do want to run it | |
1620 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1621 | for (i = 0; i < card->num_rtd; i++) { |
1622 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1623 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1624 | } |
51737470 | 1625 | |
f0fba2ad | 1626 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1627 | |
1628 | return 0; | |
51737470 | 1629 | } |
6f8ab4ac | 1630 | EXPORT_SYMBOL_GPL(snd_soc_poweroff); |
51737470 | 1631 | |
6f8ab4ac MB |
1632 | const struct dev_pm_ops snd_soc_pm_ops = { |
1633 | .suspend = snd_soc_suspend, | |
1634 | .resume = snd_soc_resume, | |
1635 | .poweroff = snd_soc_poweroff, | |
416356fc | 1636 | }; |
deb2607e | 1637 | EXPORT_SYMBOL_GPL(snd_soc_pm_ops); |
416356fc | 1638 | |
db2a4165 FM |
1639 | /* ASoC platform driver */ |
1640 | static struct platform_driver soc_driver = { | |
1641 | .driver = { | |
1642 | .name = "soc-audio", | |
8b45a209 | 1643 | .owner = THIS_MODULE, |
6f8ab4ac | 1644 | .pm = &snd_soc_pm_ops, |
db2a4165 FM |
1645 | }, |
1646 | .probe = soc_probe, | |
1647 | .remove = soc_remove, | |
db2a4165 FM |
1648 | }; |
1649 | ||
096e49d5 MB |
1650 | /** |
1651 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1652 | * | |
1653 | * @codec: CODEC to query. | |
1654 | * @reg: Register to query. | |
1655 | * | |
1656 | * Boolean function indiciating if a CODEC register is volatile. | |
1657 | */ | |
181e055e MB |
1658 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
1659 | unsigned int reg) | |
096e49d5 | 1660 | { |
1500b7b5 DP |
1661 | if (codec->volatile_register) |
1662 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
1663 | else |
1664 | return 0; | |
1665 | } | |
1666 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1667 | ||
239c9706 DP |
1668 | /** |
1669 | * snd_soc_codec_readable_register: Report if a register is readable. | |
1670 | * | |
1671 | * @codec: CODEC to query. | |
1672 | * @reg: Register to query. | |
1673 | * | |
1674 | * Boolean function indicating if a CODEC register is readable. | |
1675 | */ | |
1676 | int snd_soc_codec_readable_register(struct snd_soc_codec *codec, | |
1677 | unsigned int reg) | |
1678 | { | |
1679 | if (codec->readable_register) | |
1680 | return codec->readable_register(codec, reg); | |
1681 | else | |
63fa0a28 | 1682 | return 1; |
239c9706 DP |
1683 | } |
1684 | EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register); | |
1685 | ||
1686 | /** | |
1687 | * snd_soc_codec_writable_register: Report if a register is writable. | |
1688 | * | |
1689 | * @codec: CODEC to query. | |
1690 | * @reg: Register to query. | |
1691 | * | |
1692 | * Boolean function indicating if a CODEC register is writable. | |
1693 | */ | |
1694 | int snd_soc_codec_writable_register(struct snd_soc_codec *codec, | |
1695 | unsigned int reg) | |
1696 | { | |
1697 | if (codec->writable_register) | |
1698 | return codec->writable_register(codec, reg); | |
1699 | else | |
63fa0a28 | 1700 | return 1; |
239c9706 DP |
1701 | } |
1702 | EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register); | |
1703 | ||
f1442bc1 LG |
1704 | int snd_soc_platform_read(struct snd_soc_platform *platform, |
1705 | unsigned int reg) | |
1706 | { | |
1707 | unsigned int ret; | |
1708 | ||
1709 | if (!platform->driver->read) { | |
1710 | dev_err(platform->dev, "platform has no read back\n"); | |
1711 | return -1; | |
1712 | } | |
1713 | ||
1714 | ret = platform->driver->read(platform, reg); | |
1715 | dev_dbg(platform->dev, "read %x => %x\n", reg, ret); | |
a82ce2ae | 1716 | trace_snd_soc_preg_read(platform, reg, ret); |
f1442bc1 LG |
1717 | |
1718 | return ret; | |
1719 | } | |
1720 | EXPORT_SYMBOL_GPL(snd_soc_platform_read); | |
1721 | ||
1722 | int snd_soc_platform_write(struct snd_soc_platform *platform, | |
1723 | unsigned int reg, unsigned int val) | |
1724 | { | |
1725 | if (!platform->driver->write) { | |
1726 | dev_err(platform->dev, "platform has no write back\n"); | |
1727 | return -1; | |
1728 | } | |
1729 | ||
1730 | dev_dbg(platform->dev, "write %x = %x\n", reg, val); | |
a82ce2ae | 1731 | trace_snd_soc_preg_write(platform, reg, val); |
f1442bc1 LG |
1732 | return platform->driver->write(platform, reg, val); |
1733 | } | |
1734 | EXPORT_SYMBOL_GPL(snd_soc_platform_write); | |
1735 | ||
db2a4165 FM |
1736 | /** |
1737 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1738 | * @codec: audio codec | |
1739 | * @ops: AC97 bus operations | |
1740 | * @num: AC97 codec number | |
1741 | * | |
1742 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1743 | */ | |
1744 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1745 | struct snd_ac97_bus_ops *ops, int num) | |
1746 | { | |
1747 | mutex_lock(&codec->mutex); | |
1748 | ||
1749 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1750 | if (codec->ac97 == NULL) { | |
1751 | mutex_unlock(&codec->mutex); | |
1752 | return -ENOMEM; | |
1753 | } | |
1754 | ||
1755 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1756 | if (codec->ac97->bus == NULL) { | |
1757 | kfree(codec->ac97); | |
1758 | codec->ac97 = NULL; | |
1759 | mutex_unlock(&codec->mutex); | |
1760 | return -ENOMEM; | |
1761 | } | |
1762 | ||
1763 | codec->ac97->bus->ops = ops; | |
1764 | codec->ac97->num = num; | |
0562f788 MW |
1765 | |
1766 | /* | |
1767 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1768 | * device will be registered with the device subsystem later on. | |
1769 | */ | |
1770 | codec->ac97_created = 1; | |
1771 | ||
db2a4165 FM |
1772 | mutex_unlock(&codec->mutex); |
1773 | return 0; | |
1774 | } | |
1775 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1776 | ||
1777 | /** | |
1778 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1779 | * @codec: audio codec | |
1780 | * | |
1781 | * Frees AC97 codec device resources. | |
1782 | */ | |
1783 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1784 | { | |
1785 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1786 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1787 | soc_unregister_ac97_dai_link(codec); | |
1788 | #endif | |
db2a4165 FM |
1789 | kfree(codec->ac97->bus); |
1790 | kfree(codec->ac97); | |
1791 | codec->ac97 = NULL; | |
0562f788 | 1792 | codec->ac97_created = 0; |
db2a4165 FM |
1793 | mutex_unlock(&codec->mutex); |
1794 | } | |
1795 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1796 | ||
c3753707 MB |
1797 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
1798 | { | |
1799 | unsigned int ret; | |
1800 | ||
c3acec26 | 1801 | ret = codec->read(codec, reg); |
c3753707 | 1802 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 1803 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
1804 | |
1805 | return ret; | |
1806 | } | |
1807 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
1808 | ||
1809 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
1810 | unsigned int reg, unsigned int val) | |
1811 | { | |
1812 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 1813 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 1814 | return codec->write(codec, reg, val); |
c3753707 MB |
1815 | } |
1816 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
1817 | ||
5fb609d4 DP |
1818 | unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, |
1819 | unsigned int reg, const void *data, size_t len) | |
1820 | { | |
1821 | return codec->bulk_write_raw(codec, reg, data, len); | |
1822 | } | |
1823 | EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); | |
1824 | ||
db2a4165 FM |
1825 | /** |
1826 | * snd_soc_update_bits - update codec register bits | |
1827 | * @codec: audio codec | |
1828 | * @reg: codec register | |
1829 | * @mask: register mask | |
1830 | * @value: new value | |
1831 | * | |
1832 | * Writes new register value. | |
1833 | * | |
180c329d | 1834 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
1835 | */ |
1836 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1837 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1838 | { |
1839 | int change; | |
46f5822f | 1840 | unsigned int old, new; |
180c329d TT |
1841 | int ret; |
1842 | ||
1843 | ret = snd_soc_read(codec, reg); | |
1844 | if (ret < 0) | |
1845 | return ret; | |
db2a4165 | 1846 | |
180c329d | 1847 | old = ret; |
78bf3c9a | 1848 | new = (old & ~mask) | (value & mask); |
db2a4165 | 1849 | change = old != new; |
180c329d TT |
1850 | if (change) { |
1851 | ret = snd_soc_write(codec, reg, new); | |
1852 | if (ret < 0) | |
1853 | return ret; | |
1854 | } | |
db2a4165 | 1855 | |
db2a4165 FM |
1856 | return change; |
1857 | } | |
1858 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1859 | ||
6c508c62 EN |
1860 | /** |
1861 | * snd_soc_update_bits_locked - update codec register bits | |
1862 | * @codec: audio codec | |
1863 | * @reg: codec register | |
1864 | * @mask: register mask | |
1865 | * @value: new value | |
1866 | * | |
1867 | * Writes new register value, and takes the codec mutex. | |
1868 | * | |
1869 | * Returns 1 for change else 0. | |
1870 | */ | |
dd1b3d53 MB |
1871 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1872 | unsigned short reg, unsigned int mask, | |
1873 | unsigned int value) | |
6c508c62 EN |
1874 | { |
1875 | int change; | |
1876 | ||
1877 | mutex_lock(&codec->mutex); | |
1878 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1879 | mutex_unlock(&codec->mutex); | |
1880 | ||
1881 | return change; | |
1882 | } | |
dd1b3d53 | 1883 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1884 | |
db2a4165 FM |
1885 | /** |
1886 | * snd_soc_test_bits - test register for change | |
1887 | * @codec: audio codec | |
1888 | * @reg: codec register | |
1889 | * @mask: register mask | |
1890 | * @value: new value | |
1891 | * | |
1892 | * Tests a register with a new value and checks if the new value is | |
1893 | * different from the old value. | |
1894 | * | |
1895 | * Returns 1 for change else 0. | |
1896 | */ | |
1897 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1898 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1899 | { |
1900 | int change; | |
46f5822f | 1901 | unsigned int old, new; |
db2a4165 | 1902 | |
db2a4165 FM |
1903 | old = snd_soc_read(codec, reg); |
1904 | new = (old & ~mask) | value; | |
1905 | change = old != new; | |
db2a4165 FM |
1906 | |
1907 | return change; | |
1908 | } | |
1909 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1910 | ||
db2a4165 FM |
1911 | /** |
1912 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1913 | * @substream: the pcm substream | |
1914 | * @hw: the hardware parameters | |
1915 | * | |
1916 | * Sets the substream runtime hardware parameters. | |
1917 | */ | |
1918 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1919 | const struct snd_pcm_hardware *hw) | |
1920 | { | |
1921 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1922 | runtime->hw.info = hw->info; | |
1923 | runtime->hw.formats = hw->formats; | |
1924 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1925 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1926 | runtime->hw.periods_min = hw->periods_min; | |
1927 | runtime->hw.periods_max = hw->periods_max; | |
1928 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1929 | runtime->hw.fifo_size = hw->fifo_size; | |
1930 | return 0; | |
1931 | } | |
1932 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1933 | ||
1934 | /** | |
1935 | * snd_soc_cnew - create new control | |
1936 | * @_template: control template | |
1937 | * @data: control private data | |
ac11a2b3 | 1938 | * @long_name: control long name |
efb7ac3f | 1939 | * @prefix: control name prefix |
db2a4165 FM |
1940 | * |
1941 | * Create a new mixer control from a template control. | |
1942 | * | |
1943 | * Returns 0 for success, else error. | |
1944 | */ | |
1945 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
efb7ac3f MB |
1946 | void *data, char *long_name, |
1947 | const char *prefix) | |
db2a4165 FM |
1948 | { |
1949 | struct snd_kcontrol_new template; | |
efb7ac3f MB |
1950 | struct snd_kcontrol *kcontrol; |
1951 | char *name = NULL; | |
1952 | int name_len; | |
db2a4165 FM |
1953 | |
1954 | memcpy(&template, _template, sizeof(template)); | |
db2a4165 FM |
1955 | template.index = 0; |
1956 | ||
efb7ac3f MB |
1957 | if (!long_name) |
1958 | long_name = template.name; | |
1959 | ||
1960 | if (prefix) { | |
1961 | name_len = strlen(long_name) + strlen(prefix) + 2; | |
57cf9d45 | 1962 | name = kmalloc(name_len, GFP_KERNEL); |
efb7ac3f MB |
1963 | if (!name) |
1964 | return NULL; | |
1965 | ||
1966 | snprintf(name, name_len, "%s %s", prefix, long_name); | |
1967 | ||
1968 | template.name = name; | |
1969 | } else { | |
1970 | template.name = long_name; | |
1971 | } | |
1972 | ||
1973 | kcontrol = snd_ctl_new1(&template, data); | |
1974 | ||
1975 | kfree(name); | |
1976 | ||
1977 | return kcontrol; | |
db2a4165 FM |
1978 | } |
1979 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1980 | ||
3e8e1952 IM |
1981 | /** |
1982 | * snd_soc_add_controls - add an array of controls to a codec. | |
1983 | * Convienience function to add a list of controls. Many codecs were | |
1984 | * duplicating this code. | |
1985 | * | |
1986 | * @codec: codec to add controls to | |
1987 | * @controls: array of controls to add | |
1988 | * @num_controls: number of elements in the array | |
1989 | * | |
1990 | * Return 0 for success, else error. | |
1991 | */ | |
1992 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1993 | const struct snd_kcontrol_new *controls, int num_controls) | |
1994 | { | |
f0fba2ad | 1995 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
1996 | int err, i; |
1997 | ||
1998 | for (i = 0; i < num_controls; i++) { | |
1999 | const struct snd_kcontrol_new *control = &controls[i]; | |
efb7ac3f MB |
2000 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, |
2001 | control->name, | |
2002 | codec->name_prefix)); | |
3e8e1952 | 2003 | if (err < 0) { |
082100dc | 2004 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
efb7ac3f | 2005 | codec->name, control->name, err); |
3e8e1952 IM |
2006 | return err; |
2007 | } | |
2008 | } | |
2009 | ||
2010 | return 0; | |
2011 | } | |
2012 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2013 | ||
a491a5c8 LG |
2014 | /** |
2015 | * snd_soc_add_platform_controls - add an array of controls to a platform. | |
2016 | * Convienience function to add a list of controls. | |
2017 | * | |
2018 | * @platform: platform to add controls to | |
2019 | * @controls: array of controls to add | |
2020 | * @num_controls: number of elements in the array | |
2021 | * | |
2022 | * Return 0 for success, else error. | |
2023 | */ | |
2024 | int snd_soc_add_platform_controls(struct snd_soc_platform *platform, | |
2025 | const struct snd_kcontrol_new *controls, int num_controls) | |
2026 | { | |
2027 | struct snd_card *card = platform->card->snd_card; | |
2028 | int err, i; | |
2029 | ||
2030 | for (i = 0; i < num_controls; i++) { | |
2031 | const struct snd_kcontrol_new *control = &controls[i]; | |
2032 | err = snd_ctl_add(card, snd_soc_cnew(control, platform, | |
2033 | control->name, NULL)); | |
2034 | if (err < 0) { | |
2035 | dev_err(platform->dev, "Failed to add %s %d\n",control->name, err); | |
2036 | return err; | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | return 0; | |
2041 | } | |
2042 | EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls); | |
2043 | ||
db2a4165 FM |
2044 | /** |
2045 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2046 | * @kcontrol: mixer control | |
2047 | * @uinfo: control element information | |
2048 | * | |
2049 | * Callback to provide information about a double enumerated | |
2050 | * mixer control. | |
2051 | * | |
2052 | * Returns 0 for success. | |
2053 | */ | |
2054 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2055 | struct snd_ctl_elem_info *uinfo) | |
2056 | { | |
2057 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2058 | ||
2059 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2060 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2061 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2062 | |
f8ba0b7b JS |
2063 | if (uinfo->value.enumerated.item > e->max - 1) |
2064 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2065 | strcpy(uinfo->value.enumerated.name, |
2066 | e->texts[uinfo->value.enumerated.item]); | |
2067 | return 0; | |
2068 | } | |
2069 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2070 | ||
2071 | /** | |
2072 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2073 | * @kcontrol: mixer control | |
ac11a2b3 | 2074 | * @ucontrol: control element information |
db2a4165 FM |
2075 | * |
2076 | * Callback to get the value of a double enumerated mixer. | |
2077 | * | |
2078 | * Returns 0 for success. | |
2079 | */ | |
2080 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2081 | struct snd_ctl_elem_value *ucontrol) | |
2082 | { | |
2083 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2084 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2085 | unsigned int val, bitmask; |
db2a4165 | 2086 | |
f8ba0b7b | 2087 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2088 | ; |
2089 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2090 | ucontrol->value.enumerated.item[0] |
2091 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2092 | if (e->shift_l != e->shift_r) |
2093 | ucontrol->value.enumerated.item[1] = | |
2094 | (val >> e->shift_r) & (bitmask - 1); | |
2095 | ||
2096 | return 0; | |
2097 | } | |
2098 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2099 | ||
2100 | /** | |
2101 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2102 | * @kcontrol: mixer control | |
ac11a2b3 | 2103 | * @ucontrol: control element information |
db2a4165 FM |
2104 | * |
2105 | * Callback to set the value of a double enumerated mixer. | |
2106 | * | |
2107 | * Returns 0 for success. | |
2108 | */ | |
2109 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2110 | struct snd_ctl_elem_value *ucontrol) | |
2111 | { | |
2112 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2113 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2114 | unsigned int val; |
2115 | unsigned int mask, bitmask; | |
db2a4165 | 2116 | |
f8ba0b7b | 2117 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2118 | ; |
f8ba0b7b | 2119 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2120 | return -EINVAL; |
2121 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2122 | mask = (bitmask - 1) << e->shift_l; | |
2123 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2124 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2125 | return -EINVAL; |
2126 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2127 | mask |= (bitmask - 1) << e->shift_r; | |
2128 | } | |
2129 | ||
6c508c62 | 2130 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2131 | } |
2132 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2133 | ||
2e72f8e3 PU |
2134 | /** |
2135 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2136 | * @kcontrol: mixer control | |
2137 | * @ucontrol: control element information | |
2138 | * | |
2139 | * Callback to get the value of a double semi enumerated mixer. | |
2140 | * | |
2141 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2142 | * used for handling bitfield coded enumeration for example. | |
2143 | * | |
2144 | * Returns 0 for success. | |
2145 | */ | |
2146 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2147 | struct snd_ctl_elem_value *ucontrol) | |
2148 | { | |
2149 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2150 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2151 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2152 | |
2153 | reg_val = snd_soc_read(codec, e->reg); | |
2154 | val = (reg_val >> e->shift_l) & e->mask; | |
2155 | for (mux = 0; mux < e->max; mux++) { | |
2156 | if (val == e->values[mux]) | |
2157 | break; | |
2158 | } | |
2159 | ucontrol->value.enumerated.item[0] = mux; | |
2160 | if (e->shift_l != e->shift_r) { | |
2161 | val = (reg_val >> e->shift_r) & e->mask; | |
2162 | for (mux = 0; mux < e->max; mux++) { | |
2163 | if (val == e->values[mux]) | |
2164 | break; | |
2165 | } | |
2166 | ucontrol->value.enumerated.item[1] = mux; | |
2167 | } | |
2168 | ||
2169 | return 0; | |
2170 | } | |
2171 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2172 | ||
2173 | /** | |
2174 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2175 | * @kcontrol: mixer control | |
2176 | * @ucontrol: control element information | |
2177 | * | |
2178 | * Callback to set the value of a double semi enumerated mixer. | |
2179 | * | |
2180 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2181 | * used for handling bitfield coded enumeration for example. | |
2182 | * | |
2183 | * Returns 0 for success. | |
2184 | */ | |
2185 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2186 | struct snd_ctl_elem_value *ucontrol) | |
2187 | { | |
2188 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2189 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2190 | unsigned int val; |
2191 | unsigned int mask; | |
2e72f8e3 PU |
2192 | |
2193 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2194 | return -EINVAL; | |
2195 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2196 | mask = e->mask << e->shift_l; | |
2197 | if (e->shift_l != e->shift_r) { | |
2198 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2199 | return -EINVAL; | |
2200 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2201 | mask |= e->mask << e->shift_r; | |
2202 | } | |
2203 | ||
6c508c62 | 2204 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2205 | } |
2206 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2207 | ||
db2a4165 FM |
2208 | /** |
2209 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2210 | * @kcontrol: mixer control | |
2211 | * @uinfo: control element information | |
2212 | * | |
2213 | * Callback to provide information about an external enumerated | |
2214 | * single mixer. | |
2215 | * | |
2216 | * Returns 0 for success. | |
2217 | */ | |
2218 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2219 | struct snd_ctl_elem_info *uinfo) | |
2220 | { | |
2221 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2222 | ||
2223 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2224 | uinfo->count = 1; | |
f8ba0b7b | 2225 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2226 | |
f8ba0b7b JS |
2227 | if (uinfo->value.enumerated.item > e->max - 1) |
2228 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2229 | strcpy(uinfo->value.enumerated.name, |
2230 | e->texts[uinfo->value.enumerated.item]); | |
2231 | return 0; | |
2232 | } | |
2233 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2234 | ||
2235 | /** | |
2236 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2237 | * @kcontrol: mixer control | |
2238 | * @uinfo: control element information | |
2239 | * | |
2240 | * Callback to provide information about a single external mixer control. | |
2241 | * | |
2242 | * Returns 0 for success. | |
2243 | */ | |
2244 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2245 | struct snd_ctl_elem_info *uinfo) | |
2246 | { | |
a7a4ac86 PZ |
2247 | int max = kcontrol->private_value; |
2248 | ||
fd5dfad9 | 2249 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2250 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2251 | else | |
2252 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2253 | |
db2a4165 FM |
2254 | uinfo->count = 1; |
2255 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2256 | uinfo->value.integer.max = max; |
db2a4165 FM |
2257 | return 0; |
2258 | } | |
2259 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2260 | ||
db2a4165 FM |
2261 | /** |
2262 | * snd_soc_info_volsw - single mixer info callback | |
2263 | * @kcontrol: mixer control | |
2264 | * @uinfo: control element information | |
2265 | * | |
e8f5a103 PU |
2266 | * Callback to provide information about a single mixer control, or a double |
2267 | * mixer control that spans 2 registers. | |
db2a4165 FM |
2268 | * |
2269 | * Returns 0 for success. | |
2270 | */ | |
2271 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2272 | struct snd_ctl_elem_info *uinfo) | |
2273 | { | |
4eaa9819 JS |
2274 | struct soc_mixer_control *mc = |
2275 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2276 | int platform_max; |
db2a4165 | 2277 | |
d11bb4a9 PU |
2278 | if (!mc->platform_max) |
2279 | mc->platform_max = mc->max; | |
2280 | platform_max = mc->platform_max; | |
2281 | ||
2282 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2283 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2284 | else | |
2285 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2286 | ||
e8f5a103 | 2287 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
db2a4165 | 2288 | uinfo->value.integer.min = 0; |
d11bb4a9 | 2289 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2290 | return 0; |
2291 | } | |
2292 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2293 | ||
2294 | /** | |
2295 | * snd_soc_get_volsw - single mixer get callback | |
2296 | * @kcontrol: mixer control | |
ac11a2b3 | 2297 | * @ucontrol: control element information |
db2a4165 | 2298 | * |
f7915d99 PU |
2299 | * Callback to get the value of a single mixer control, or a double mixer |
2300 | * control that spans 2 registers. | |
db2a4165 FM |
2301 | * |
2302 | * Returns 0 for success. | |
2303 | */ | |
2304 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2305 | struct snd_ctl_elem_value *ucontrol) | |
2306 | { | |
4eaa9819 JS |
2307 | struct soc_mixer_control *mc = |
2308 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2309 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2310 | unsigned int reg = mc->reg; |
f7915d99 | 2311 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2312 | unsigned int shift = mc->shift; |
2313 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2314 | int max = mc->max; |
815ecf8d JS |
2315 | unsigned int mask = (1 << fls(max)) - 1; |
2316 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2317 | |
2318 | ucontrol->value.integer.value[0] = | |
2319 | (snd_soc_read(codec, reg) >> shift) & mask; | |
f7915d99 | 2320 | if (invert) |
db2a4165 | 2321 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2322 | max - ucontrol->value.integer.value[0]; |
f7915d99 PU |
2323 | |
2324 | if (snd_soc_volsw_is_stereo(mc)) { | |
2325 | if (reg == reg2) | |
2326 | ucontrol->value.integer.value[1] = | |
2327 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2328 | else | |
2329 | ucontrol->value.integer.value[1] = | |
2330 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2331 | if (invert) | |
db2a4165 | 2332 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2333 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2334 | } |
2335 | ||
2336 | return 0; | |
2337 | } | |
2338 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2339 | ||
2340 | /** | |
2341 | * snd_soc_put_volsw - single mixer put callback | |
2342 | * @kcontrol: mixer control | |
ac11a2b3 | 2343 | * @ucontrol: control element information |
db2a4165 | 2344 | * |
974815ba PU |
2345 | * Callback to set the value of a single mixer control, or a double mixer |
2346 | * control that spans 2 registers. | |
db2a4165 FM |
2347 | * |
2348 | * Returns 0 for success. | |
2349 | */ | |
2350 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2351 | struct snd_ctl_elem_value *ucontrol) | |
2352 | { | |
4eaa9819 JS |
2353 | struct soc_mixer_control *mc = |
2354 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2355 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2356 | unsigned int reg = mc->reg; |
974815ba | 2357 | unsigned int reg2 = mc->rreg; |
815ecf8d JS |
2358 | unsigned int shift = mc->shift; |
2359 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2360 | int max = mc->max; |
815ecf8d JS |
2361 | unsigned int mask = (1 << fls(max)) - 1; |
2362 | unsigned int invert = mc->invert; | |
974815ba PU |
2363 | int err; |
2364 | bool type_2r = 0; | |
2365 | unsigned int val2 = 0; | |
2366 | unsigned int val, val_mask; | |
db2a4165 FM |
2367 | |
2368 | val = (ucontrol->value.integer.value[0] & mask); | |
2369 | if (invert) | |
a7a4ac86 | 2370 | val = max - val; |
db2a4165 FM |
2371 | val_mask = mask << shift; |
2372 | val = val << shift; | |
974815ba | 2373 | if (snd_soc_volsw_is_stereo(mc)) { |
db2a4165 FM |
2374 | val2 = (ucontrol->value.integer.value[1] & mask); |
2375 | if (invert) | |
a7a4ac86 | 2376 | val2 = max - val2; |
974815ba PU |
2377 | if (reg == reg2) { |
2378 | val_mask |= mask << rshift; | |
2379 | val |= val2 << rshift; | |
2380 | } else { | |
2381 | val2 = val2 << shift; | |
2382 | type_2r = 1; | |
2383 | } | |
db2a4165 | 2384 | } |
6c508c62 | 2385 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2386 | if (err < 0) |
db2a4165 FM |
2387 | return err; |
2388 | ||
974815ba PU |
2389 | if (type_2r) |
2390 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); | |
2391 | ||
db2a4165 FM |
2392 | return err; |
2393 | } | |
974815ba | 2394 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
db2a4165 | 2395 | |
e13ac2e9 MB |
2396 | /** |
2397 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2398 | * @kcontrol: mixer control | |
2399 | * @uinfo: control element information | |
2400 | * | |
2401 | * Callback to provide information about a signed mixer control. | |
2402 | * | |
2403 | * Returns 0 for success. | |
2404 | */ | |
2405 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2406 | struct snd_ctl_elem_info *uinfo) | |
2407 | { | |
4eaa9819 JS |
2408 | struct soc_mixer_control *mc = |
2409 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2410 | int platform_max; |
4eaa9819 | 2411 | int min = mc->min; |
e13ac2e9 | 2412 | |
d11bb4a9 PU |
2413 | if (!mc->platform_max) |
2414 | mc->platform_max = mc->max; | |
2415 | platform_max = mc->platform_max; | |
2416 | ||
e13ac2e9 MB |
2417 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2418 | uinfo->count = 2; | |
2419 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2420 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2421 | return 0; |
2422 | } | |
2423 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2424 | ||
2425 | /** | |
2426 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2427 | * @kcontrol: mixer control | |
ac11a2b3 | 2428 | * @ucontrol: control element information |
e13ac2e9 MB |
2429 | * |
2430 | * Callback to get the value of a signed mixer control. | |
2431 | * | |
2432 | * Returns 0 for success. | |
2433 | */ | |
2434 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2435 | struct snd_ctl_elem_value *ucontrol) | |
2436 | { | |
4eaa9819 JS |
2437 | struct soc_mixer_control *mc = |
2438 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2439 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2440 | unsigned int reg = mc->reg; |
4eaa9819 | 2441 | int min = mc->min; |
e13ac2e9 MB |
2442 | int val = snd_soc_read(codec, reg); |
2443 | ||
2444 | ucontrol->value.integer.value[0] = | |
2445 | ((signed char)(val & 0xff))-min; | |
2446 | ucontrol->value.integer.value[1] = | |
2447 | ((signed char)((val >> 8) & 0xff))-min; | |
2448 | return 0; | |
2449 | } | |
2450 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2451 | ||
2452 | /** | |
2453 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2454 | * @kcontrol: mixer control | |
ac11a2b3 | 2455 | * @ucontrol: control element information |
e13ac2e9 MB |
2456 | * |
2457 | * Callback to set the value of a signed mixer control. | |
2458 | * | |
2459 | * Returns 0 for success. | |
2460 | */ | |
2461 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2462 | struct snd_ctl_elem_value *ucontrol) | |
2463 | { | |
4eaa9819 JS |
2464 | struct soc_mixer_control *mc = |
2465 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2466 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2467 | unsigned int reg = mc->reg; |
4eaa9819 | 2468 | int min = mc->min; |
46f5822f | 2469 | unsigned int val; |
e13ac2e9 MB |
2470 | |
2471 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2472 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2473 | ||
6c508c62 | 2474 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2475 | } |
2476 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2477 | ||
637d3847 PU |
2478 | /** |
2479 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2480 | * | |
2481 | * @codec: where to look for the control | |
2482 | * @name: Name of the control | |
2483 | * @max: new maximum limit | |
2484 | * | |
2485 | * Return 0 for success, else error. | |
2486 | */ | |
2487 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2488 | const char *name, int max) | |
2489 | { | |
f0fba2ad | 2490 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2491 | struct snd_kcontrol *kctl; |
2492 | struct soc_mixer_control *mc; | |
2493 | int found = 0; | |
2494 | int ret = -EINVAL; | |
2495 | ||
2496 | /* Sanity check for name and max */ | |
2497 | if (unlikely(!name || max <= 0)) | |
2498 | return -EINVAL; | |
2499 | ||
2500 | list_for_each_entry(kctl, &card->controls, list) { | |
2501 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2502 | found = 1; | |
2503 | break; | |
2504 | } | |
2505 | } | |
2506 | if (found) { | |
2507 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2508 | if (max <= mc->max) { | |
d11bb4a9 | 2509 | mc->platform_max = max; |
637d3847 PU |
2510 | ret = 0; |
2511 | } | |
2512 | } | |
2513 | return ret; | |
2514 | } | |
2515 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2516 | ||
b6f4bb38 | 2517 | /** |
2518 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2519 | * mixer info callback | |
2520 | * @kcontrol: mixer control | |
2521 | * @uinfo: control element information | |
2522 | * | |
2523 | * Returns 0 for success. | |
2524 | */ | |
2525 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2526 | struct snd_ctl_elem_info *uinfo) | |
2527 | { | |
2528 | struct soc_mixer_control *mc = | |
2529 | (struct soc_mixer_control *)kcontrol->private_value; | |
2530 | int max = mc->max; | |
2531 | int min = mc->min; | |
2532 | ||
2533 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2534 | uinfo->count = 2; | |
2535 | uinfo->value.integer.min = 0; | |
2536 | uinfo->value.integer.max = max-min; | |
2537 | ||
2538 | return 0; | |
2539 | } | |
2540 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2541 | ||
2542 | /** | |
2543 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2544 | * mixer get callback | |
2545 | * @kcontrol: mixer control | |
2546 | * @uinfo: control element information | |
2547 | * | |
2548 | * Returns 0 for success. | |
2549 | */ | |
2550 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2551 | struct snd_ctl_elem_value *ucontrol) | |
2552 | { | |
2553 | struct soc_mixer_control *mc = | |
2554 | (struct soc_mixer_control *)kcontrol->private_value; | |
2555 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2556 | unsigned int mask = (1<<mc->shift)-1; | |
2557 | int min = mc->min; | |
2558 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2559 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2560 | ||
20630c7f SL |
2561 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2562 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2563 | return 0; |
2564 | } | |
2565 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2566 | ||
2567 | /** | |
2568 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2569 | * mixer put callback | |
2570 | * @kcontrol: mixer control | |
2571 | * @uinfo: control element information | |
2572 | * | |
2573 | * Returns 0 for success. | |
2574 | */ | |
2575 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2576 | struct snd_ctl_elem_value *ucontrol) | |
2577 | { | |
2578 | struct soc_mixer_control *mc = | |
2579 | (struct soc_mixer_control *)kcontrol->private_value; | |
2580 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2581 | unsigned int mask = (1<<mc->shift)-1; | |
2582 | int min = mc->min; | |
2583 | int ret; | |
2584 | unsigned int val, valr, oval, ovalr; | |
2585 | ||
2586 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2587 | val &= mask; | |
2588 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2589 | valr &= mask; | |
2590 | ||
2591 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2592 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2593 | ||
2594 | ret = 0; | |
2595 | if (oval != val) { | |
2596 | ret = snd_soc_write(codec, mc->reg, val); | |
2597 | if (ret < 0) | |
f1df5aec | 2598 | return ret; |
b6f4bb38 | 2599 | } |
2600 | if (ovalr != valr) { | |
2601 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2602 | if (ret < 0) | |
f1df5aec | 2603 | return ret; |
b6f4bb38 | 2604 | } |
2605 | ||
2606 | return 0; | |
2607 | } | |
2608 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2609 | ||
8c6529db LG |
2610 | /** |
2611 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2612 | * @dai: DAI | |
2613 | * @clk_id: DAI specific clock ID | |
2614 | * @freq: new clock frequency in Hz | |
2615 | * @dir: new clock direction - input/output. | |
2616 | * | |
2617 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2618 | */ | |
2619 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2620 | unsigned int freq, int dir) | |
2621 | { | |
f0fba2ad LG |
2622 | if (dai->driver && dai->driver->ops->set_sysclk) |
2623 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
ec4ee52a | 2624 | else if (dai->codec && dai->codec->driver->set_sysclk) |
da1c6ea6 | 2625 | return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0, |
ec4ee52a | 2626 | freq, dir); |
8c6529db LG |
2627 | else |
2628 | return -EINVAL; | |
2629 | } | |
2630 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2631 | ||
ec4ee52a MB |
2632 | /** |
2633 | * snd_soc_codec_set_sysclk - configure CODEC system or master clock. | |
2634 | * @codec: CODEC | |
2635 | * @clk_id: DAI specific clock ID | |
da1c6ea6 | 2636 | * @source: Source for the clock |
ec4ee52a MB |
2637 | * @freq: new clock frequency in Hz |
2638 | * @dir: new clock direction - input/output. | |
2639 | * | |
2640 | * Configures the CODEC master (MCLK) or system (SYSCLK) clocking. | |
2641 | */ | |
2642 | int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, | |
da1c6ea6 | 2643 | int source, unsigned int freq, int dir) |
ec4ee52a MB |
2644 | { |
2645 | if (codec->driver->set_sysclk) | |
da1c6ea6 MB |
2646 | return codec->driver->set_sysclk(codec, clk_id, source, |
2647 | freq, dir); | |
ec4ee52a MB |
2648 | else |
2649 | return -EINVAL; | |
2650 | } | |
2651 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk); | |
2652 | ||
8c6529db LG |
2653 | /** |
2654 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2655 | * @dai: DAI | |
ac11a2b3 | 2656 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2657 | * @div: new clock divisor. |
2658 | * | |
2659 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2660 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2661 | * and frame clocks as low as possible to save system power. | |
2662 | */ | |
2663 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2664 | int div_id, int div) | |
2665 | { | |
f0fba2ad LG |
2666 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2667 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2668 | else |
2669 | return -EINVAL; | |
2670 | } | |
2671 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2672 | ||
2673 | /** | |
2674 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2675 | * @dai: DAI | |
2676 | * @pll_id: DAI specific PLL ID | |
85488037 | 2677 | * @source: DAI specific source for the PLL |
8c6529db LG |
2678 | * @freq_in: PLL input clock frequency in Hz |
2679 | * @freq_out: requested PLL output clock frequency in Hz | |
2680 | * | |
2681 | * Configures and enables PLL to generate output clock based on input clock. | |
2682 | */ | |
85488037 MB |
2683 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2684 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2685 | { |
f0fba2ad LG |
2686 | if (dai->driver && dai->driver->ops->set_pll) |
2687 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2688 | freq_in, freq_out); |
ec4ee52a MB |
2689 | else if (dai->codec && dai->codec->driver->set_pll) |
2690 | return dai->codec->driver->set_pll(dai->codec, pll_id, source, | |
2691 | freq_in, freq_out); | |
8c6529db LG |
2692 | else |
2693 | return -EINVAL; | |
2694 | } | |
2695 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2696 | ||
ec4ee52a MB |
2697 | /* |
2698 | * snd_soc_codec_set_pll - configure codec PLL. | |
2699 | * @codec: CODEC | |
2700 | * @pll_id: DAI specific PLL ID | |
2701 | * @source: DAI specific source for the PLL | |
2702 | * @freq_in: PLL input clock frequency in Hz | |
2703 | * @freq_out: requested PLL output clock frequency in Hz | |
2704 | * | |
2705 | * Configures and enables PLL to generate output clock based on input clock. | |
2706 | */ | |
2707 | int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, | |
2708 | unsigned int freq_in, unsigned int freq_out) | |
2709 | { | |
2710 | if (codec->driver->set_pll) | |
2711 | return codec->driver->set_pll(codec, pll_id, source, | |
2712 | freq_in, freq_out); | |
2713 | else | |
2714 | return -EINVAL; | |
2715 | } | |
2716 | EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); | |
2717 | ||
8c6529db LG |
2718 | /** |
2719 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2720 | * @dai: DAI | |
8c6529db LG |
2721 | * @fmt: SND_SOC_DAIFMT_ format value. |
2722 | * | |
2723 | * Configures the DAI hardware format and clocking. | |
2724 | */ | |
2725 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2726 | { | |
f0fba2ad LG |
2727 | if (dai->driver && dai->driver->ops->set_fmt) |
2728 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2729 | else |
2730 | return -EINVAL; | |
2731 | } | |
2732 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2733 | ||
2734 | /** | |
2735 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2736 | * @dai: DAI | |
a5479e38 DR |
2737 | * @tx_mask: bitmask representing active TX slots. |
2738 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2739 | * @slots: Number of slots in use. |
a5479e38 | 2740 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2741 | * |
2742 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2743 | * specific. | |
2744 | */ | |
2745 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2746 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2747 | { |
f0fba2ad LG |
2748 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2749 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2750 | slots, slot_width); |
8c6529db LG |
2751 | else |
2752 | return -EINVAL; | |
2753 | } | |
2754 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2755 | ||
472df3cb BS |
2756 | /** |
2757 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2758 | * @dai: DAI | |
2759 | * @tx_num: how many TX channels | |
2760 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2761 | * 0~num-1 uses | |
2762 | * @rx_num: how many RX channels | |
2763 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2764 | * 0~num-1 uses | |
2765 | * | |
2766 | * configure the relationship between channel number and TDM slot number. | |
2767 | */ | |
2768 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2769 | unsigned int tx_num, unsigned int *tx_slot, | |
2770 | unsigned int rx_num, unsigned int *rx_slot) | |
2771 | { | |
f0fba2ad LG |
2772 | if (dai->driver && dai->driver->ops->set_channel_map) |
2773 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2774 | rx_num, rx_slot); |
2775 | else | |
2776 | return -EINVAL; | |
2777 | } | |
2778 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2779 | ||
8c6529db LG |
2780 | /** |
2781 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2782 | * @dai: DAI | |
2783 | * @tristate: tristate enable | |
2784 | * | |
2785 | * Tristates the DAI so that others can use it. | |
2786 | */ | |
2787 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2788 | { | |
f0fba2ad LG |
2789 | if (dai->driver && dai->driver->ops->set_tristate) |
2790 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2791 | else |
2792 | return -EINVAL; | |
2793 | } | |
2794 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2795 | ||
2796 | /** | |
2797 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2798 | * @dai: DAI | |
2799 | * @mute: mute enable | |
2800 | * | |
2801 | * Mutes the DAI DAC. | |
2802 | */ | |
2803 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2804 | { | |
f0fba2ad LG |
2805 | if (dai->driver && dai->driver->ops->digital_mute) |
2806 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2807 | else |
2808 | return -EINVAL; | |
2809 | } | |
2810 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2811 | ||
c5af3a2e MB |
2812 | /** |
2813 | * snd_soc_register_card - Register a card with the ASoC core | |
2814 | * | |
ac11a2b3 | 2815 | * @card: Card to register |
c5af3a2e | 2816 | * |
c5af3a2e | 2817 | */ |
70a7ca34 | 2818 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 2819 | { |
f0fba2ad LG |
2820 | int i; |
2821 | ||
c5af3a2e MB |
2822 | if (!card->name || !card->dev) |
2823 | return -EINVAL; | |
2824 | ||
ed77cc12 MB |
2825 | dev_set_drvdata(card->dev, card); |
2826 | ||
111c6419 SW |
2827 | snd_soc_initialize_card_lists(card); |
2828 | ||
150dd2f8 VK |
2829 | soc_init_card_debugfs(card); |
2830 | ||
2eea392d JN |
2831 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
2832 | (card->num_links + card->num_aux_devs), | |
2833 | GFP_KERNEL); | |
f0fba2ad LG |
2834 | if (card->rtd == NULL) |
2835 | return -ENOMEM; | |
2eea392d | 2836 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
2837 | |
2838 | for (i = 0; i < card->num_links; i++) | |
2839 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2840 | ||
c5af3a2e | 2841 | INIT_LIST_HEAD(&card->list); |
db432b41 | 2842 | INIT_LIST_HEAD(&card->dapm_dirty); |
c5af3a2e | 2843 | card->instantiated = 0; |
f0fba2ad | 2844 | mutex_init(&card->mutex); |
c5af3a2e MB |
2845 | |
2846 | mutex_lock(&client_mutex); | |
2847 | list_add(&card->list, &card_list); | |
435c5e25 | 2848 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2849 | mutex_unlock(&client_mutex); |
2850 | ||
2851 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2852 | ||
2853 | return 0; | |
2854 | } | |
70a7ca34 | 2855 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
2856 | |
2857 | /** | |
2858 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2859 | * | |
ac11a2b3 | 2860 | * @card: Card to unregister |
c5af3a2e | 2861 | * |
c5af3a2e | 2862 | */ |
70a7ca34 | 2863 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 2864 | { |
b0e26485 VK |
2865 | if (card->instantiated) |
2866 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
2867 | mutex_lock(&client_mutex); |
2868 | list_del(&card->list); | |
2869 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2870 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2871 | ||
2872 | return 0; | |
2873 | } | |
70a7ca34 | 2874 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 2875 | |
f0fba2ad LG |
2876 | /* |
2877 | * Simplify DAI link configuration by removing ".-1" from device names | |
2878 | * and sanitizing names. | |
2879 | */ | |
0b9a214a | 2880 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
2881 | { |
2882 | char *found, name[NAME_SIZE]; | |
2883 | int id1, id2; | |
2884 | ||
2885 | if (dev_name(dev) == NULL) | |
2886 | return NULL; | |
2887 | ||
58818a77 | 2888 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
2889 | |
2890 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2891 | found = strstr(name, dev->driver->name); | |
2892 | if (found) { | |
2893 | /* get ID */ | |
2894 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2895 | ||
2896 | /* discard ID from name if ID == -1 */ | |
2897 | if (*id == -1) | |
2898 | found[strlen(dev->driver->name)] = '\0'; | |
2899 | } | |
2900 | ||
2901 | } else { | |
2902 | /* I2C component devices are named "bus-addr" */ | |
2903 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2904 | char tmp[NAME_SIZE]; | |
2905 | ||
2906 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2907 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2908 | |
2909 | /* sanitize component name for DAI link creation */ | |
2910 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 2911 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
2912 | } else |
2913 | *id = 0; | |
2914 | } | |
2915 | ||
2916 | return kstrdup(name, GFP_KERNEL); | |
2917 | } | |
2918 | ||
2919 | /* | |
2920 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2921 | * any ".-1" and using the DAI name (instead of device name). | |
2922 | */ | |
2923 | static inline char *fmt_multiple_name(struct device *dev, | |
2924 | struct snd_soc_dai_driver *dai_drv) | |
2925 | { | |
2926 | if (dai_drv->name == NULL) { | |
2927 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2928 | dev_name(dev)); | |
2929 | return NULL; | |
2930 | } | |
2931 | ||
2932 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2933 | } | |
2934 | ||
9115171a MB |
2935 | /** |
2936 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2937 | * | |
ac11a2b3 | 2938 | * @dai: DAI to register |
9115171a | 2939 | */ |
f0fba2ad LG |
2940 | int snd_soc_register_dai(struct device *dev, |
2941 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2942 | { |
f0fba2ad LG |
2943 | struct snd_soc_dai *dai; |
2944 | ||
2945 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2946 | |
f0fba2ad LG |
2947 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2948 | if (dai == NULL) | |
a7393623 | 2949 | return -ENOMEM; |
9115171a | 2950 | |
f0fba2ad LG |
2951 | /* create DAI component name */ |
2952 | dai->name = fmt_single_name(dev, &dai->id); | |
2953 | if (dai->name == NULL) { | |
2954 | kfree(dai); | |
2955 | return -ENOMEM; | |
2956 | } | |
6335d055 | 2957 | |
f0fba2ad LG |
2958 | dai->dev = dev; |
2959 | dai->driver = dai_drv; | |
2960 | if (!dai->driver->ops) | |
2961 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
2962 | |
2963 | mutex_lock(&client_mutex); | |
2964 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2965 | snd_soc_instantiate_cards(); |
9115171a MB |
2966 | mutex_unlock(&client_mutex); |
2967 | ||
2968 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2969 | ||
2970 | return 0; | |
2971 | } | |
2972 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2973 | ||
2974 | /** | |
2975 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2976 | * | |
ac11a2b3 | 2977 | * @dai: DAI to unregister |
9115171a | 2978 | */ |
f0fba2ad | 2979 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 2980 | { |
f0fba2ad LG |
2981 | struct snd_soc_dai *dai; |
2982 | ||
2983 | list_for_each_entry(dai, &dai_list, list) { | |
2984 | if (dev == dai->dev) | |
2985 | goto found; | |
2986 | } | |
2987 | return; | |
2988 | ||
2989 | found: | |
9115171a MB |
2990 | mutex_lock(&client_mutex); |
2991 | list_del(&dai->list); | |
2992 | mutex_unlock(&client_mutex); | |
2993 | ||
2994 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
2995 | kfree(dai->name); |
2996 | kfree(dai); | |
9115171a MB |
2997 | } |
2998 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
2999 | ||
3000 | /** | |
3001 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3002 | * | |
ac11a2b3 MB |
3003 | * @dai: Array of DAIs to register |
3004 | * @count: Number of DAIs | |
9115171a | 3005 | */ |
f0fba2ad LG |
3006 | int snd_soc_register_dais(struct device *dev, |
3007 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3008 | { |
f0fba2ad LG |
3009 | struct snd_soc_dai *dai; |
3010 | int i, ret = 0; | |
3011 | ||
720ffa4c | 3012 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3013 | |
3014 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3015 | |
3016 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3017 | if (dai == NULL) { |
3018 | ret = -ENOMEM; | |
3019 | goto err; | |
3020 | } | |
f0fba2ad LG |
3021 | |
3022 | /* create DAI component name */ | |
3023 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3024 | if (dai->name == NULL) { | |
3025 | kfree(dai); | |
3026 | ret = -EINVAL; | |
9115171a | 3027 | goto err; |
f0fba2ad LG |
3028 | } |
3029 | ||
3030 | dai->dev = dev; | |
f0fba2ad | 3031 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3032 | if (dai->driver->id) |
3033 | dai->id = dai->driver->id; | |
3034 | else | |
3035 | dai->id = i; | |
f0fba2ad LG |
3036 | if (!dai->driver->ops) |
3037 | dai->driver->ops = &null_dai_ops; | |
3038 | ||
3039 | mutex_lock(&client_mutex); | |
3040 | list_add(&dai->list, &dai_list); | |
3041 | mutex_unlock(&client_mutex); | |
3042 | ||
3043 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3044 | } |
3045 | ||
1dcb4f38 | 3046 | mutex_lock(&client_mutex); |
f0fba2ad | 3047 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3048 | mutex_unlock(&client_mutex); |
9115171a MB |
3049 | return 0; |
3050 | ||
3051 | err: | |
3052 | for (i--; i >= 0; i--) | |
f0fba2ad | 3053 | snd_soc_unregister_dai(dev); |
9115171a MB |
3054 | |
3055 | return ret; | |
3056 | } | |
3057 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3058 | ||
3059 | /** | |
3060 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3061 | * | |
ac11a2b3 MB |
3062 | * @dai: Array of DAIs to unregister |
3063 | * @count: Number of DAIs | |
9115171a | 3064 | */ |
f0fba2ad | 3065 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3066 | { |
3067 | int i; | |
3068 | ||
3069 | for (i = 0; i < count; i++) | |
f0fba2ad | 3070 | snd_soc_unregister_dai(dev); |
9115171a MB |
3071 | } |
3072 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3073 | ||
12a48a8c MB |
3074 | /** |
3075 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3076 | * | |
ac11a2b3 | 3077 | * @platform: platform to register |
12a48a8c | 3078 | */ |
f0fba2ad LG |
3079 | int snd_soc_register_platform(struct device *dev, |
3080 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3081 | { |
f0fba2ad LG |
3082 | struct snd_soc_platform *platform; |
3083 | ||
3084 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3085 | ||
3086 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3087 | if (platform == NULL) | |
a7393623 | 3088 | return -ENOMEM; |
f0fba2ad LG |
3089 | |
3090 | /* create platform component name */ | |
3091 | platform->name = fmt_single_name(dev, &platform->id); | |
3092 | if (platform->name == NULL) { | |
3093 | kfree(platform); | |
3094 | return -ENOMEM; | |
3095 | } | |
12a48a8c | 3096 | |
f0fba2ad LG |
3097 | platform->dev = dev; |
3098 | platform->driver = platform_drv; | |
b7950641 LG |
3099 | platform->dapm.dev = dev; |
3100 | platform->dapm.platform = platform; | |
64a648c2 | 3101 | platform->dapm.stream_event = platform_drv->stream_event; |
12a48a8c MB |
3102 | |
3103 | mutex_lock(&client_mutex); | |
3104 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3105 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3106 | mutex_unlock(&client_mutex); |
3107 | ||
3108 | pr_debug("Registered platform '%s'\n", platform->name); | |
3109 | ||
3110 | return 0; | |
3111 | } | |
3112 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3113 | ||
3114 | /** | |
3115 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3116 | * | |
ac11a2b3 | 3117 | * @platform: platform to unregister |
12a48a8c | 3118 | */ |
f0fba2ad | 3119 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3120 | { |
f0fba2ad LG |
3121 | struct snd_soc_platform *platform; |
3122 | ||
3123 | list_for_each_entry(platform, &platform_list, list) { | |
3124 | if (dev == platform->dev) | |
3125 | goto found; | |
3126 | } | |
3127 | return; | |
3128 | ||
3129 | found: | |
12a48a8c MB |
3130 | mutex_lock(&client_mutex); |
3131 | list_del(&platform->list); | |
3132 | mutex_unlock(&client_mutex); | |
3133 | ||
3134 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3135 | kfree(platform->name); |
3136 | kfree(platform); | |
12a48a8c MB |
3137 | } |
3138 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3139 | ||
151ab22c MB |
3140 | static u64 codec_format_map[] = { |
3141 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3142 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3143 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3144 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3145 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3146 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3147 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3148 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3149 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3150 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3151 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3152 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3153 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3154 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3155 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3156 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3157 | }; | |
3158 | ||
3159 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3160 | * the endianness of the data but we're using the CPU format | |
3161 | * definitions which do need to include endianness so we ensure that | |
3162 | * codec DAIs always have both big and little endian variants set. | |
3163 | */ | |
3164 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3165 | { | |
3166 | int i; | |
3167 | ||
3168 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3169 | if (stream->formats & codec_format_map[i]) | |
3170 | stream->formats |= codec_format_map[i]; | |
3171 | } | |
3172 | ||
0d0cf00a MB |
3173 | /** |
3174 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3175 | * | |
ac11a2b3 | 3176 | * @codec: codec to register |
0d0cf00a | 3177 | */ |
f0fba2ad | 3178 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3179 | const struct snd_soc_codec_driver *codec_drv, |
3180 | struct snd_soc_dai_driver *dai_drv, | |
3181 | int num_dai) | |
0d0cf00a | 3182 | { |
3335ddca | 3183 | size_t reg_size; |
f0fba2ad LG |
3184 | struct snd_soc_codec *codec; |
3185 | int ret, i; | |
151ab22c | 3186 | |
f0fba2ad LG |
3187 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3188 | ||
3189 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3190 | if (codec == NULL) | |
3191 | return -ENOMEM; | |
0d0cf00a | 3192 | |
f0fba2ad LG |
3193 | /* create CODEC component name */ |
3194 | codec->name = fmt_single_name(dev, &codec->id); | |
3195 | if (codec->name == NULL) { | |
3196 | kfree(codec); | |
3197 | return -ENOMEM; | |
3198 | } | |
3199 | ||
23bbce34 DP |
3200 | if (codec_drv->compress_type) |
3201 | codec->compress_type = codec_drv->compress_type; | |
3202 | else | |
3203 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3204 | ||
c3acec26 MB |
3205 | codec->write = codec_drv->write; |
3206 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3207 | codec->volatile_register = codec_drv->volatile_register; |
3208 | codec->readable_register = codec_drv->readable_register; | |
8020454c | 3209 | codec->writable_register = codec_drv->writable_register; |
ce6120cc LG |
3210 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3211 | codec->dapm.dev = dev; | |
3212 | codec->dapm.codec = codec; | |
474b62d6 | 3213 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
64a648c2 | 3214 | codec->dapm.stream_event = codec_drv->stream_event; |
7a30a3db DP |
3215 | codec->dev = dev; |
3216 | codec->driver = codec_drv; | |
3217 | codec->num_dai = num_dai; | |
3218 | mutex_init(&codec->mutex); | |
ce6120cc | 3219 | |
f0fba2ad LG |
3220 | /* allocate CODEC register cache */ |
3221 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3222 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3223 | codec->reg_size = reg_size; |
3335ddca DP |
3224 | /* it is necessary to make a copy of the default register cache |
3225 | * because in the case of using a compression type that requires | |
3226 | * the default register cache to be marked as __devinitconst the | |
3227 | * kernel might have freed the array by the time we initialize | |
3228 | * the cache. | |
3229 | */ | |
2aa86323 DP |
3230 | if (codec_drv->reg_cache_default) { |
3231 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3232 | reg_size, GFP_KERNEL); | |
3233 | if (!codec->reg_def_copy) { | |
3234 | ret = -ENOMEM; | |
3235 | goto fail; | |
3236 | } | |
f0fba2ad | 3237 | } |
151ab22c MB |
3238 | } |
3239 | ||
1500b7b5 DP |
3240 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3241 | if (!codec->volatile_register) | |
3242 | codec->volatile_register = snd_soc_default_volatile_register; | |
3243 | if (!codec->readable_register) | |
3244 | codec->readable_register = snd_soc_default_readable_register; | |
8020454c DP |
3245 | if (!codec->writable_register) |
3246 | codec->writable_register = snd_soc_default_writable_register; | |
1500b7b5 DP |
3247 | } |
3248 | ||
f0fba2ad LG |
3249 | for (i = 0; i < num_dai; i++) { |
3250 | fixup_codec_formats(&dai_drv[i].playback); | |
3251 | fixup_codec_formats(&dai_drv[i].capture); | |
3252 | } | |
3253 | ||
26b01ccd MB |
3254 | /* register any DAIs */ |
3255 | if (num_dai) { | |
3256 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3257 | if (ret < 0) | |
fdf0f54d | 3258 | goto fail; |
26b01ccd | 3259 | } |
f0fba2ad | 3260 | |
0d0cf00a MB |
3261 | mutex_lock(&client_mutex); |
3262 | list_add(&codec->list, &codec_list); | |
3263 | snd_soc_instantiate_cards(); | |
3264 | mutex_unlock(&client_mutex); | |
3265 | ||
3266 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3267 | return 0; |
f0fba2ad | 3268 | |
fdf0f54d | 3269 | fail: |
3335ddca DP |
3270 | kfree(codec->reg_def_copy); |
3271 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3272 | kfree(codec->name); |
3273 | kfree(codec); | |
3274 | return ret; | |
0d0cf00a MB |
3275 | } |
3276 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3277 | ||
3278 | /** | |
3279 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3280 | * | |
ac11a2b3 | 3281 | * @codec: codec to unregister |
0d0cf00a | 3282 | */ |
f0fba2ad | 3283 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3284 | { |
f0fba2ad LG |
3285 | struct snd_soc_codec *codec; |
3286 | int i; | |
3287 | ||
3288 | list_for_each_entry(codec, &codec_list, list) { | |
3289 | if (dev == codec->dev) | |
3290 | goto found; | |
3291 | } | |
3292 | return; | |
3293 | ||
3294 | found: | |
26b01ccd MB |
3295 | if (codec->num_dai) |
3296 | for (i = 0; i < codec->num_dai; i++) | |
3297 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3298 | |
0d0cf00a MB |
3299 | mutex_lock(&client_mutex); |
3300 | list_del(&codec->list); | |
3301 | mutex_unlock(&client_mutex); | |
3302 | ||
3303 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3304 | |
7a30a3db | 3305 | snd_soc_cache_exit(codec); |
3335ddca | 3306 | kfree(codec->reg_def_copy); |
1aafcd4d | 3307 | kfree(codec->name); |
f0fba2ad | 3308 | kfree(codec); |
0d0cf00a MB |
3309 | } |
3310 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3311 | ||
c9b3a40f | 3312 | static int __init snd_soc_init(void) |
db2a4165 | 3313 | { |
384c89e2 | 3314 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3315 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3316 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3317 | printk(KERN_WARNING |
3318 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3319 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3320 | } |
c3c5a19a | 3321 | |
8a9dab1a | 3322 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3323 | &codec_list_fops)) |
3324 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3325 | ||
8a9dab1a | 3326 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3327 | &dai_list_fops)) |
3328 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3329 | |
8a9dab1a | 3330 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3331 | &platform_list_fops)) |
3332 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3333 | #endif |
3334 | ||
fb257897 MB |
3335 | snd_soc_util_init(); |
3336 | ||
db2a4165 FM |
3337 | return platform_driver_register(&soc_driver); |
3338 | } | |
4abe8e16 | 3339 | module_init(snd_soc_init); |
db2a4165 | 3340 | |
7d8c16a6 | 3341 | static void __exit snd_soc_exit(void) |
db2a4165 | 3342 | { |
fb257897 MB |
3343 | snd_soc_util_exit(); |
3344 | ||
384c89e2 | 3345 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3346 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3347 | #endif |
3ff3f64b | 3348 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3349 | } |
db2a4165 FM |
3350 | module_exit(snd_soc_exit); |
3351 | ||
3352 | /* Module information */ | |
d331124d | 3353 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3354 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3355 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3356 | MODULE_ALIAS("platform:soc-audio"); |