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