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Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 | 35 | #include <sound/core.h> |
3028eb8c | 36 | #include <sound/jack.h> |
db2a4165 FM |
37 | #include <sound/pcm.h> |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/soc.h> | |
db2a4165 FM |
40 | #include <sound/initval.h> |
41 | ||
a8b1d34f MB |
42 | #define CREATE_TRACE_POINTS |
43 | #include <trace/events/asoc.h> | |
44 | ||
f0fba2ad LG |
45 | #define NAME_SIZE 32 |
46 | ||
db2a4165 | 47 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
48 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
49 | ||
384c89e2 MB |
50 | #ifdef CONFIG_DEBUG_FS |
51 | static struct dentry *debugfs_root; | |
52 | #endif | |
53 | ||
c5af3a2e MB |
54 | static DEFINE_MUTEX(client_mutex); |
55 | static LIST_HEAD(card_list); | |
9115171a | 56 | static LIST_HEAD(dai_list); |
12a48a8c | 57 | static LIST_HEAD(platform_list); |
0d0cf00a | 58 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
59 | |
60 | static int snd_soc_register_card(struct snd_soc_card *card); | |
61 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 62 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 63 | |
db2a4165 FM |
64 | /* |
65 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
66 | * It can be used to eliminate pops between different playback streams, e.g. | |
67 | * between two audio tracks. | |
68 | */ | |
69 | static int pmdown_time = 5000; | |
70 | module_param(pmdown_time, int, 0); | |
71 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
72 | ||
2624d5fa MB |
73 | /* codec register dump */ |
74 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
75 | { | |
5164d74d | 76 | int ret, i, step = 1, count = 0; |
2624d5fa | 77 | |
f0fba2ad | 78 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
79 | return 0; |
80 | ||
f0fba2ad LG |
81 | if (codec->driver->reg_cache_step) |
82 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
83 | |
84 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
85 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
86 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
87 | continue; |
88 | ||
89 | count += sprintf(buf + count, "%2x: ", i); | |
90 | if (count >= PAGE_SIZE - 1) | |
91 | break; | |
92 | ||
f0fba2ad LG |
93 | if (codec->driver->display_register) { |
94 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 95 | PAGE_SIZE - count, i); |
5164d74d MB |
96 | } else { |
97 | /* If the read fails it's almost certainly due to | |
98 | * the register being volatile and the device being | |
99 | * powered off. | |
100 | */ | |
e4f078d8 | 101 | ret = snd_soc_read(codec, i); |
5164d74d MB |
102 | if (ret >= 0) |
103 | count += snprintf(buf + count, | |
104 | PAGE_SIZE - count, | |
105 | "%4x", ret); | |
106 | else | |
107 | count += snprintf(buf + count, | |
108 | PAGE_SIZE - count, | |
109 | "<no data: %d>", ret); | |
110 | } | |
2624d5fa MB |
111 | |
112 | if (count >= PAGE_SIZE - 1) | |
113 | break; | |
114 | ||
115 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
116 | if (count >= PAGE_SIZE - 1) | |
117 | break; | |
118 | } | |
119 | ||
120 | /* Truncate count; min() would cause a warning */ | |
121 | if (count >= PAGE_SIZE) | |
122 | count = PAGE_SIZE - 1; | |
123 | ||
124 | return count; | |
125 | } | |
126 | static ssize_t codec_reg_show(struct device *dev, | |
127 | struct device_attribute *attr, char *buf) | |
128 | { | |
f0fba2ad LG |
129 | struct snd_soc_pcm_runtime *rtd = |
130 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
131 | ||
132 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
133 | } |
134 | ||
135 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
136 | ||
dbe21408 MB |
137 | static ssize_t pmdown_time_show(struct device *dev, |
138 | struct device_attribute *attr, char *buf) | |
139 | { | |
f0fba2ad LG |
140 | struct snd_soc_pcm_runtime *rtd = |
141 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 142 | |
f0fba2ad | 143 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
144 | } |
145 | ||
146 | static ssize_t pmdown_time_set(struct device *dev, | |
147 | struct device_attribute *attr, | |
148 | const char *buf, size_t count) | |
149 | { | |
f0fba2ad LG |
150 | struct snd_soc_pcm_runtime *rtd = |
151 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 152 | int ret; |
dbe21408 | 153 | |
c593b520 MB |
154 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
155 | if (ret) | |
156 | return ret; | |
dbe21408 MB |
157 | |
158 | return count; | |
159 | } | |
160 | ||
161 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
162 | ||
2624d5fa MB |
163 | #ifdef CONFIG_DEBUG_FS |
164 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
165 | { | |
166 | file->private_data = inode->i_private; | |
167 | return 0; | |
168 | } | |
169 | ||
170 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
171 | size_t count, loff_t *ppos) | |
172 | { | |
173 | ssize_t ret; | |
174 | struct snd_soc_codec *codec = file->private_data; | |
175 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
176 | if (!buf) | |
177 | return -ENOMEM; | |
178 | ret = soc_codec_reg_show(codec, buf); | |
179 | if (ret >= 0) | |
180 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
181 | kfree(buf); | |
182 | return ret; | |
183 | } | |
184 | ||
185 | static ssize_t codec_reg_write_file(struct file *file, | |
186 | const char __user *user_buf, size_t count, loff_t *ppos) | |
187 | { | |
188 | char buf[32]; | |
189 | int buf_size; | |
190 | char *start = buf; | |
191 | unsigned long reg, value; | |
192 | int step = 1; | |
193 | struct snd_soc_codec *codec = file->private_data; | |
194 | ||
195 | buf_size = min(count, (sizeof(buf)-1)); | |
196 | if (copy_from_user(buf, user_buf, buf_size)) | |
197 | return -EFAULT; | |
198 | buf[buf_size] = 0; | |
199 | ||
f0fba2ad LG |
200 | if (codec->driver->reg_cache_step) |
201 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
202 | |
203 | while (*start == ' ') | |
204 | start++; | |
205 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 206 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
207 | return -EINVAL; |
208 | while (*start == ' ') | |
209 | start++; | |
210 | if (strict_strtoul(start, 16, &value)) | |
211 | return -EINVAL; | |
e4f078d8 | 212 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
213 | return buf_size; |
214 | } | |
215 | ||
216 | static const struct file_operations codec_reg_fops = { | |
217 | .open = codec_reg_open_file, | |
218 | .read = codec_reg_read_file, | |
219 | .write = codec_reg_write_file, | |
6038f373 | 220 | .llseek = default_llseek, |
2624d5fa MB |
221 | }; |
222 | ||
223 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
224 | { | |
d6ce4cf3 JN |
225 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
226 | ||
227 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
228 | debugfs_card_root); | |
2624d5fa MB |
229 | if (!codec->debugfs_codec_root) { |
230 | printk(KERN_WARNING | |
231 | "ASoC: Failed to create codec debugfs directory\n"); | |
232 | return; | |
233 | } | |
234 | ||
235 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
236 | codec->debugfs_codec_root, | |
237 | codec, &codec_reg_fops); | |
238 | if (!codec->debugfs_reg) | |
239 | printk(KERN_WARNING | |
240 | "ASoC: Failed to create codec register debugfs file\n"); | |
241 | ||
ce6120cc | 242 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 243 | codec->debugfs_codec_root); |
ce6120cc | 244 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
245 | printk(KERN_WARNING |
246 | "Failed to create DAPM debugfs directory\n"); | |
247 | ||
ce6120cc | 248 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
249 | } |
250 | ||
251 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
252 | { | |
253 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
254 | } | |
255 | ||
c3c5a19a MB |
256 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
257 | size_t count, loff_t *ppos) | |
258 | { | |
259 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 260 | ssize_t len, ret = 0; |
c3c5a19a MB |
261 | struct snd_soc_codec *codec; |
262 | ||
263 | if (!buf) | |
264 | return -ENOMEM; | |
265 | ||
2b194f9d MB |
266 | list_for_each_entry(codec, &codec_list, list) { |
267 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
268 | codec->name); | |
269 | if (len >= 0) | |
270 | ret += len; | |
271 | if (ret > PAGE_SIZE) { | |
272 | ret = PAGE_SIZE; | |
273 | break; | |
274 | } | |
275 | } | |
c3c5a19a MB |
276 | |
277 | if (ret >= 0) | |
278 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
279 | ||
280 | kfree(buf); | |
281 | ||
282 | return ret; | |
283 | } | |
284 | ||
285 | static const struct file_operations codec_list_fops = { | |
286 | .read = codec_list_read_file, | |
287 | .llseek = default_llseek,/* read accesses f_pos */ | |
288 | }; | |
289 | ||
f3208780 MB |
290 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
291 | size_t count, loff_t *ppos) | |
292 | { | |
293 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 294 | ssize_t len, ret = 0; |
f3208780 MB |
295 | struct snd_soc_dai *dai; |
296 | ||
297 | if (!buf) | |
298 | return -ENOMEM; | |
299 | ||
2b194f9d MB |
300 | list_for_each_entry(dai, &dai_list, list) { |
301 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
302 | if (len >= 0) | |
303 | ret += len; | |
304 | if (ret > PAGE_SIZE) { | |
305 | ret = PAGE_SIZE; | |
306 | break; | |
307 | } | |
308 | } | |
f3208780 | 309 | |
2b194f9d | 310 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
311 | |
312 | kfree(buf); | |
313 | ||
314 | return ret; | |
315 | } | |
316 | ||
317 | static const struct file_operations dai_list_fops = { | |
318 | .read = dai_list_read_file, | |
319 | .llseek = default_llseek,/* read accesses f_pos */ | |
320 | }; | |
321 | ||
19c7ac27 MB |
322 | static ssize_t platform_list_read_file(struct file *file, |
323 | char __user *user_buf, | |
324 | size_t count, loff_t *ppos) | |
325 | { | |
326 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 327 | ssize_t len, ret = 0; |
19c7ac27 MB |
328 | struct snd_soc_platform *platform; |
329 | ||
330 | if (!buf) | |
331 | return -ENOMEM; | |
332 | ||
2b194f9d MB |
333 | list_for_each_entry(platform, &platform_list, list) { |
334 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
335 | platform->name); | |
336 | if (len >= 0) | |
337 | ret += len; | |
338 | if (ret > PAGE_SIZE) { | |
339 | ret = PAGE_SIZE; | |
340 | break; | |
341 | } | |
342 | } | |
19c7ac27 | 343 | |
2b194f9d | 344 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
345 | |
346 | kfree(buf); | |
347 | ||
348 | return ret; | |
349 | } | |
350 | ||
351 | static const struct file_operations platform_list_fops = { | |
352 | .read = platform_list_read_file, | |
353 | .llseek = default_llseek,/* read accesses f_pos */ | |
354 | }; | |
355 | ||
a6052154 JN |
356 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
357 | { | |
358 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
359 | debugfs_root); | |
3a45b867 | 360 | if (!card->debugfs_card_root) { |
a6052154 JN |
361 | dev_warn(card->dev, |
362 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
363 | return; |
364 | } | |
365 | ||
366 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
367 | card->debugfs_card_root, | |
368 | &card->pop_time); | |
369 | if (!card->debugfs_pop_time) | |
370 | dev_warn(card->dev, | |
371 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
372 | } |
373 | ||
374 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
375 | { | |
376 | debugfs_remove_recursive(card->debugfs_card_root); | |
377 | } | |
378 | ||
2624d5fa MB |
379 | #else |
380 | ||
381 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
382 | { | |
383 | } | |
384 | ||
385 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
386 | { | |
387 | } | |
b95fccbc AL |
388 | |
389 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
390 | { | |
391 | } | |
392 | ||
393 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
394 | { | |
395 | } | |
2624d5fa MB |
396 | #endif |
397 | ||
db2a4165 FM |
398 | #ifdef CONFIG_SND_SOC_AC97_BUS |
399 | /* unregister ac97 codec */ | |
400 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
401 | { | |
402 | if (codec->ac97->dev.bus) | |
403 | device_unregister(&codec->ac97->dev); | |
404 | return 0; | |
405 | } | |
406 | ||
407 | /* stop no dev release warning */ | |
408 | static void soc_ac97_device_release(struct device *dev){} | |
409 | ||
410 | /* register ac97 codec to bus */ | |
411 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
412 | { | |
413 | int err; | |
414 | ||
415 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 416 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
417 | codec->ac97->dev.release = soc_ac97_device_release; |
418 | ||
bb072bf0 | 419 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 420 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
421 | err = device_register(&codec->ac97->dev); |
422 | if (err < 0) { | |
423 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
424 | codec->ac97->dev.bus = NULL; | |
425 | return err; | |
426 | } | |
427 | return 0; | |
428 | } | |
429 | #endif | |
430 | ||
06f409d7 MB |
431 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
432 | { | |
433 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
434 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
435 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
436 | int ret; |
437 | ||
f0fba2ad LG |
438 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
439 | rtd->dai_link->symmetric_rates) { | |
440 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
441 | rtd->rate); | |
06f409d7 MB |
442 | |
443 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
444 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
445 | rtd->rate, |
446 | rtd->rate); | |
06f409d7 | 447 | if (ret < 0) { |
f0fba2ad | 448 | dev_err(&rtd->dev, |
06f409d7 MB |
449 | "Unable to apply rate symmetry constraint: %d\n", ret); |
450 | return ret; | |
451 | } | |
452 | } | |
453 | ||
454 | return 0; | |
455 | } | |
456 | ||
db2a4165 FM |
457 | /* |
458 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
459 | * then initialized and any private data can be allocated. This also calls | |
460 | * startup for the cpu DAI, platform, machine and codec DAI. | |
461 | */ | |
462 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
463 | { | |
464 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 465 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
466 | struct snd_soc_platform *platform = rtd->platform; |
467 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
468 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
469 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
470 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
471 | int ret = 0; |
472 | ||
473 | mutex_lock(&pcm_mutex); | |
474 | ||
475 | /* startup the audio subsystem */ | |
f0fba2ad LG |
476 | if (cpu_dai->driver->ops->startup) { |
477 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
478 | if (ret < 0) { |
479 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 480 | cpu_dai->name); |
db2a4165 FM |
481 | goto out; |
482 | } | |
483 | } | |
484 | ||
f0fba2ad LG |
485 | if (platform->driver->ops->open) { |
486 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
487 | if (ret < 0) { |
488 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
489 | goto platform_err; | |
490 | } | |
491 | } | |
492 | ||
f0fba2ad LG |
493 | if (codec_dai->driver->ops->startup) { |
494 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 495 | if (ret < 0) { |
cb666e5b LG |
496 | printk(KERN_ERR "asoc: can't open codec %s\n", |
497 | codec_dai->name); | |
498 | goto codec_dai_err; | |
db2a4165 FM |
499 | } |
500 | } | |
501 | ||
f0fba2ad LG |
502 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
503 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 504 | if (ret < 0) { |
f0fba2ad | 505 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 506 | goto machine_err; |
db2a4165 FM |
507 | } |
508 | } | |
509 | ||
a00f90f9 | 510 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
511 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
512 | runtime->hw.rate_min = | |
f0fba2ad LG |
513 | max(codec_dai_drv->playback.rate_min, |
514 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 515 | runtime->hw.rate_max = |
f0fba2ad LG |
516 | min(codec_dai_drv->playback.rate_max, |
517 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 518 | runtime->hw.channels_min = |
f0fba2ad LG |
519 | max(codec_dai_drv->playback.channels_min, |
520 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 521 | runtime->hw.channels_max = |
f0fba2ad LG |
522 | min(codec_dai_drv->playback.channels_max, |
523 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 524 | runtime->hw.formats = |
f0fba2ad | 525 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 526 | runtime->hw.rates = |
f0fba2ad LG |
527 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
528 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 529 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
530 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
531 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 532 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 533 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
534 | } else { |
535 | runtime->hw.rate_min = | |
f0fba2ad LG |
536 | max(codec_dai_drv->capture.rate_min, |
537 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 538 | runtime->hw.rate_max = |
f0fba2ad LG |
539 | min(codec_dai_drv->capture.rate_max, |
540 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 541 | runtime->hw.channels_min = |
f0fba2ad LG |
542 | max(codec_dai_drv->capture.channels_min, |
543 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 544 | runtime->hw.channels_max = |
f0fba2ad LG |
545 | min(codec_dai_drv->capture.channels_max, |
546 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 547 | runtime->hw.formats = |
f0fba2ad | 548 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 549 | runtime->hw.rates = |
f0fba2ad LG |
550 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
551 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 552 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
553 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
554 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 555 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 556 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
557 | } |
558 | ||
559 | snd_pcm_limit_hw_rates(runtime); | |
560 | if (!runtime->hw.rates) { | |
561 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 562 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 563 | goto config_err; |
db2a4165 FM |
564 | } |
565 | if (!runtime->hw.formats) { | |
566 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 567 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 568 | goto config_err; |
db2a4165 FM |
569 | } |
570 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
571 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 572 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 573 | goto config_err; |
db2a4165 FM |
574 | } |
575 | ||
06f409d7 MB |
576 | /* Symmetry only applies if we've already got an active stream. */ |
577 | if (cpu_dai->active || codec_dai->active) { | |
578 | ret = soc_pcm_apply_symmetry(substream); | |
579 | if (ret != 0) | |
bb1c0478 | 580 | goto config_err; |
06f409d7 MB |
581 | } |
582 | ||
f0fba2ad LG |
583 | pr_debug("asoc: %s <-> %s info:\n", |
584 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
585 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
586 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
587 | runtime->hw.channels_max); | |
588 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
589 | runtime->hw.rate_max); | |
db2a4165 | 590 | |
14dc5734 | 591 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
592 | cpu_dai->playback_active++; |
593 | codec_dai->playback_active++; | |
14dc5734 | 594 | } else { |
f0fba2ad LG |
595 | cpu_dai->capture_active++; |
596 | codec_dai->capture_active++; | |
14dc5734 JB |
597 | } |
598 | cpu_dai->active++; | |
599 | codec_dai->active++; | |
f0fba2ad | 600 | rtd->codec->active++; |
db2a4165 FM |
601 | mutex_unlock(&pcm_mutex); |
602 | return 0; | |
603 | ||
bb1c0478 | 604 | config_err: |
f0fba2ad LG |
605 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
606 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 607 | |
bb1c0478 | 608 | machine_err: |
f0fba2ad LG |
609 | if (codec_dai->driver->ops->shutdown) |
610 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 611 | |
cb666e5b | 612 | codec_dai_err: |
f0fba2ad LG |
613 | if (platform->driver->ops->close) |
614 | platform->driver->ops->close(substream); | |
db2a4165 FM |
615 | |
616 | platform_err: | |
f0fba2ad LG |
617 | if (cpu_dai->driver->ops->shutdown) |
618 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
619 | out: |
620 | mutex_unlock(&pcm_mutex); | |
621 | return ret; | |
622 | } | |
623 | ||
624 | /* | |
3a4fa0a2 | 625 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
626 | * This is to ensure there are no pops or clicks in between any music tracks |
627 | * due to DAPM power cycling. | |
628 | */ | |
4484bb2e | 629 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 630 | { |
f0fba2ad LG |
631 | struct snd_soc_pcm_runtime *rtd = |
632 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
633 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
634 | |
635 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
636 | |
637 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
638 | codec_dai->driver->playback.stream_name, | |
639 | codec_dai->playback_active ? "active" : "inactive", | |
640 | codec_dai->pop_wait ? "yes" : "no"); | |
641 | ||
642 | /* are we waiting on this codec DAI stream */ | |
643 | if (codec_dai->pop_wait == 1) { | |
644 | codec_dai->pop_wait = 0; | |
645 | snd_soc_dapm_stream_event(rtd, | |
646 | codec_dai->driver->playback.stream_name, | |
647 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 648 | } |
f0fba2ad | 649 | |
db2a4165 FM |
650 | mutex_unlock(&pcm_mutex); |
651 | } | |
652 | ||
653 | /* | |
654 | * Called by ALSA when a PCM substream is closed. Private data can be | |
655 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
656 | * shutdown. | |
657 | */ | |
658 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
659 | { | |
660 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
661 | struct snd_soc_platform *platform = rtd->platform; |
662 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
663 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
664 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
665 | |
666 | mutex_lock(&pcm_mutex); | |
667 | ||
14dc5734 | 668 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
669 | cpu_dai->playback_active--; |
670 | codec_dai->playback_active--; | |
14dc5734 | 671 | } else { |
f0fba2ad LG |
672 | cpu_dai->capture_active--; |
673 | codec_dai->capture_active--; | |
db2a4165 | 674 | } |
14dc5734 JB |
675 | |
676 | cpu_dai->active--; | |
677 | codec_dai->active--; | |
db2a4165 FM |
678 | codec->active--; |
679 | ||
6010b2da MB |
680 | /* Muting the DAC suppresses artifacts caused during digital |
681 | * shutdown, for example from stopping clocks. | |
682 | */ | |
683 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
684 | snd_soc_dai_digital_mute(codec_dai, 1); | |
685 | ||
f0fba2ad LG |
686 | if (cpu_dai->driver->ops->shutdown) |
687 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 688 | |
f0fba2ad LG |
689 | if (codec_dai->driver->ops->shutdown) |
690 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 691 | |
f0fba2ad LG |
692 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
693 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 694 | |
f0fba2ad LG |
695 | if (platform->driver->ops->close) |
696 | platform->driver->ops->close(substream); | |
697 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
698 | |
699 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
700 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 701 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
702 | schedule_delayed_work(&rtd->delayed_work, |
703 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
704 | } else { |
705 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
706 | snd_soc_dapm_stream_event(rtd, |
707 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 708 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
709 | } |
710 | ||
711 | mutex_unlock(&pcm_mutex); | |
712 | return 0; | |
713 | } | |
714 | ||
715 | /* | |
716 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
717 | * rate, etc. This function is non atomic and can be called multiple times, | |
718 | * it can refer to the runtime info. | |
719 | */ | |
720 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
721 | { | |
722 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
723 | struct snd_soc_platform *platform = rtd->platform; |
724 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
725 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
726 | int ret = 0; |
727 | ||
728 | mutex_lock(&pcm_mutex); | |
cb666e5b | 729 | |
f0fba2ad LG |
730 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
731 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
732 | if (ret < 0) { |
733 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
734 | goto out; | |
735 | } | |
736 | } | |
737 | ||
f0fba2ad LG |
738 | if (platform->driver->ops->prepare) { |
739 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
740 | if (ret < 0) { |
741 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 742 | goto out; |
a71a468a | 743 | } |
db2a4165 FM |
744 | } |
745 | ||
f0fba2ad LG |
746 | if (codec_dai->driver->ops->prepare) { |
747 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
748 | if (ret < 0) { |
749 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 750 | goto out; |
a71a468a | 751 | } |
db2a4165 FM |
752 | } |
753 | ||
f0fba2ad LG |
754 | if (cpu_dai->driver->ops->prepare) { |
755 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
756 | if (ret < 0) { |
757 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
758 | goto out; | |
759 | } | |
760 | } | |
db2a4165 | 761 | |
d45f6219 MB |
762 | /* cancel any delayed stream shutdown that is pending */ |
763 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
764 | codec_dai->pop_wait) { | |
765 | codec_dai->pop_wait = 0; | |
f0fba2ad | 766 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 767 | } |
db2a4165 | 768 | |
452c5eaa | 769 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
770 | snd_soc_dapm_stream_event(rtd, |
771 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
772 | SND_SOC_DAPM_STREAM_START); |
773 | else | |
f0fba2ad LG |
774 | snd_soc_dapm_stream_event(rtd, |
775 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 776 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 777 | |
452c5eaa | 778 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
779 | |
780 | out: | |
781 | mutex_unlock(&pcm_mutex); | |
782 | return ret; | |
783 | } | |
784 | ||
785 | /* | |
786 | * Called by ALSA when the hardware params are set by application. This | |
787 | * function can also be called multiple times and can allocate buffers | |
788 | * (using snd_pcm_lib_* ). It's non-atomic. | |
789 | */ | |
790 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
791 | struct snd_pcm_hw_params *params) | |
792 | { | |
793 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
794 | struct snd_soc_platform *platform = rtd->platform; |
795 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
796 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
797 | int ret = 0; |
798 | ||
799 | mutex_lock(&pcm_mutex); | |
800 | ||
f0fba2ad LG |
801 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
802 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
803 | if (ret < 0) { |
804 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 805 | goto out; |
cb666e5b | 806 | } |
db2a4165 FM |
807 | } |
808 | ||
f0fba2ad LG |
809 | if (codec_dai->driver->ops->hw_params) { |
810 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
811 | if (ret < 0) { |
812 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
813 | codec_dai->name); |
814 | goto codec_err; | |
db2a4165 FM |
815 | } |
816 | } | |
817 | ||
f0fba2ad LG |
818 | if (cpu_dai->driver->ops->hw_params) { |
819 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 820 | if (ret < 0) { |
3ff3f64b | 821 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 822 | cpu_dai->name); |
db2a4165 FM |
823 | goto interface_err; |
824 | } | |
825 | } | |
826 | ||
f0fba2ad LG |
827 | if (platform->driver->ops->hw_params) { |
828 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 829 | if (ret < 0) { |
3ff3f64b | 830 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
831 | platform->name); |
832 | goto platform_err; | |
833 | } | |
834 | } | |
835 | ||
f0fba2ad | 836 | rtd->rate = params_rate(params); |
06f409d7 | 837 | |
db2a4165 FM |
838 | out: |
839 | mutex_unlock(&pcm_mutex); | |
840 | return ret; | |
841 | ||
db2a4165 | 842 | platform_err: |
f0fba2ad LG |
843 | if (cpu_dai->driver->ops->hw_free) |
844 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
845 | |
846 | interface_err: | |
f0fba2ad LG |
847 | if (codec_dai->driver->ops->hw_free) |
848 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
849 | |
850 | codec_err: | |
f0fba2ad LG |
851 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
852 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
853 | |
854 | mutex_unlock(&pcm_mutex); | |
855 | return ret; | |
856 | } | |
857 | ||
858 | /* | |
a00f90f9 | 859 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
860 | */ |
861 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
862 | { | |
863 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
864 | struct snd_soc_platform *platform = rtd->platform; |
865 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
866 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
867 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
868 | |
869 | mutex_lock(&pcm_mutex); | |
870 | ||
871 | /* apply codec digital mute */ | |
8c6529db LG |
872 | if (!codec->active) |
873 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
874 | |
875 | /* free any machine hw params */ | |
f0fba2ad LG |
876 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
877 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
878 | |
879 | /* free any DMA resources */ | |
f0fba2ad LG |
880 | if (platform->driver->ops->hw_free) |
881 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 882 | |
a00f90f9 | 883 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
884 | if (codec_dai->driver->ops->hw_free) |
885 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 886 | |
f0fba2ad LG |
887 | if (cpu_dai->driver->ops->hw_free) |
888 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
889 | |
890 | mutex_unlock(&pcm_mutex); | |
891 | return 0; | |
892 | } | |
893 | ||
894 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
895 | { | |
896 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
897 | struct snd_soc_platform *platform = rtd->platform; |
898 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
899 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
900 | int ret; |
901 | ||
f0fba2ad LG |
902 | if (codec_dai->driver->ops->trigger) { |
903 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
904 | if (ret < 0) |
905 | return ret; | |
906 | } | |
907 | ||
f0fba2ad LG |
908 | if (platform->driver->ops->trigger) { |
909 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
910 | if (ret < 0) |
911 | return ret; | |
912 | } | |
913 | ||
f0fba2ad LG |
914 | if (cpu_dai->driver->ops->trigger) { |
915 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
916 | if (ret < 0) |
917 | return ret; | |
918 | } | |
919 | return 0; | |
920 | } | |
921 | ||
377b6f62 PU |
922 | /* |
923 | * soc level wrapper for pointer callback | |
258020d0 PU |
924 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
925 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
926 | */ |
927 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
928 | { | |
929 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
930 | struct snd_soc_platform *platform = rtd->platform; |
931 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
932 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 933 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 934 | snd_pcm_uframes_t offset = 0; |
258020d0 | 935 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 936 | |
f0fba2ad LG |
937 | if (platform->driver->ops->pointer) |
938 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 939 | |
f0fba2ad LG |
940 | if (cpu_dai->driver->ops->delay) |
941 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 942 | |
f0fba2ad LG |
943 | if (codec_dai->driver->ops->delay) |
944 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 945 | |
f0fba2ad LG |
946 | if (platform->driver->delay) |
947 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
948 | |
949 | runtime->delay = delay; | |
950 | ||
377b6f62 PU |
951 | return offset; |
952 | } | |
953 | ||
db2a4165 FM |
954 | /* ASoC PCM operations */ |
955 | static struct snd_pcm_ops soc_pcm_ops = { | |
956 | .open = soc_pcm_open, | |
957 | .close = soc_codec_close, | |
958 | .hw_params = soc_pcm_hw_params, | |
959 | .hw_free = soc_pcm_hw_free, | |
960 | .prepare = soc_pcm_prepare, | |
961 | .trigger = soc_pcm_trigger, | |
377b6f62 | 962 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
963 | }; |
964 | ||
965 | #ifdef CONFIG_PM | |
966 | /* powers down audio subsystem for suspend */ | |
416356fc | 967 | static int soc_suspend(struct device *dev) |
db2a4165 | 968 | { |
416356fc | 969 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 970 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
2eea392d | 971 | struct snd_soc_codec *codec; |
db2a4165 FM |
972 | int i; |
973 | ||
e3509ff0 DM |
974 | /* If the initialization of this soc device failed, there is no codec |
975 | * associated with it. Just bail out in this case. | |
976 | */ | |
f0fba2ad | 977 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
978 | return 0; |
979 | ||
6ed25978 AG |
980 | /* Due to the resume being scheduled into a workqueue we could |
981 | * suspend before that's finished - wait for it to complete. | |
982 | */ | |
f0fba2ad LG |
983 | snd_power_lock(card->snd_card); |
984 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
985 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
986 | |
987 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 988 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 989 | |
a00f90f9 | 990 | /* mute any active DACs */ |
f0fba2ad LG |
991 | for (i = 0; i < card->num_rtd; i++) { |
992 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
993 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 994 | |
f0fba2ad | 995 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
996 | continue; |
997 | ||
f0fba2ad LG |
998 | if (drv->ops->digital_mute && dai->playback_active) |
999 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1000 | } |
1001 | ||
4ccab3e7 | 1002 | /* suspend all pcms */ |
f0fba2ad LG |
1003 | for (i = 0; i < card->num_rtd; i++) { |
1004 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1005 | continue; |
1006 | ||
f0fba2ad | 1007 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1008 | } |
4ccab3e7 | 1009 | |
87506549 | 1010 | if (card->suspend_pre) |
416356fc | 1011 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 1012 | |
f0fba2ad LG |
1013 | for (i = 0; i < card->num_rtd; i++) { |
1014 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1015 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1016 | |
f0fba2ad | 1017 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1018 | continue; |
1019 | ||
f0fba2ad LG |
1020 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1021 | cpu_dai->driver->suspend(cpu_dai); | |
1022 | if (platform->driver->suspend && !platform->suspended) { | |
1023 | platform->driver->suspend(cpu_dai); | |
1024 | platform->suspended = 1; | |
1025 | } | |
db2a4165 FM |
1026 | } |
1027 | ||
1028 | /* close any waiting streams and save state */ | |
f0fba2ad | 1029 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1030 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1031 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1032 | } |
db2a4165 | 1033 | |
f0fba2ad LG |
1034 | for (i = 0; i < card->num_rtd; i++) { |
1035 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1036 | |
f0fba2ad | 1037 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1038 | continue; |
1039 | ||
f0fba2ad LG |
1040 | if (driver->playback.stream_name != NULL) |
1041 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1042 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1043 | |
1044 | if (driver->capture.stream_name != NULL) | |
1045 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1046 | SND_SOC_DAPM_STREAM_SUSPEND); |
1047 | } | |
1048 | ||
f0fba2ad | 1049 | /* suspend all CODECs */ |
2eea392d | 1050 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1051 | /* If there are paths active then the CODEC will be held with |
1052 | * bias _ON and should not be suspended. */ | |
1053 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1054 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1055 | case SND_SOC_BIAS_STANDBY: |
1056 | case SND_SOC_BIAS_OFF: | |
1057 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1058 | codec->suspended = 1; | |
1059 | break; | |
1060 | default: | |
1061 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1062 | break; | |
1063 | } | |
1547aba9 MB |
1064 | } |
1065 | } | |
db2a4165 | 1066 | |
f0fba2ad LG |
1067 | for (i = 0; i < card->num_rtd; i++) { |
1068 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1069 | |
f0fba2ad | 1070 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1071 | continue; |
1072 | ||
f0fba2ad LG |
1073 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1074 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1075 | } |
1076 | ||
87506549 | 1077 | if (card->suspend_post) |
416356fc | 1078 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1079 | |
1080 | return 0; | |
1081 | } | |
1082 | ||
6ed25978 AG |
1083 | /* deferred resume work, so resume can complete before we finished |
1084 | * setting our codec back up, which can be very slow on I2C | |
1085 | */ | |
1086 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1087 | { |
f0fba2ad LG |
1088 | struct snd_soc_card *card = |
1089 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1090 | struct platform_device *pdev = to_platform_device(card->dev); | |
2eea392d | 1091 | struct snd_soc_codec *codec; |
db2a4165 FM |
1092 | int i; |
1093 | ||
6ed25978 AG |
1094 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1095 | * so userspace apps are blocked from touching us | |
1096 | */ | |
1097 | ||
f0fba2ad | 1098 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1099 | |
9949788b | 1100 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1101 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1102 | |
87506549 MB |
1103 | if (card->resume_pre) |
1104 | card->resume_pre(pdev); | |
db2a4165 | 1105 | |
f0fba2ad LG |
1106 | /* resume AC97 DAIs */ |
1107 | for (i = 0; i < card->num_rtd; i++) { | |
1108 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1109 | |
f0fba2ad | 1110 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1111 | continue; |
1112 | ||
f0fba2ad LG |
1113 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1114 | cpu_dai->driver->resume(cpu_dai); | |
1115 | } | |
1116 | ||
2eea392d | 1117 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1118 | /* If the CODEC was idle over suspend then it will have been |
1119 | * left with bias OFF or STANDBY and suspended so we must now | |
1120 | * resume. Otherwise the suspend was suppressed. | |
1121 | */ | |
1122 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1123 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1124 | case SND_SOC_BIAS_STANDBY: |
1125 | case SND_SOC_BIAS_OFF: | |
1126 | codec->driver->resume(codec); | |
1127 | codec->suspended = 0; | |
1128 | break; | |
1129 | default: | |
1130 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1131 | break; | |
1132 | } | |
1547aba9 MB |
1133 | } |
1134 | } | |
db2a4165 | 1135 | |
f0fba2ad LG |
1136 | for (i = 0; i < card->num_rtd; i++) { |
1137 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1138 | |
f0fba2ad | 1139 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1140 | continue; |
1141 | ||
f0fba2ad LG |
1142 | if (driver->playback.stream_name != NULL) |
1143 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1144 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1145 | |
1146 | if (driver->capture.stream_name != NULL) | |
1147 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1148 | SND_SOC_DAPM_STREAM_RESUME); |
1149 | } | |
1150 | ||
3ff3f64b | 1151 | /* unmute any active DACs */ |
f0fba2ad LG |
1152 | for (i = 0; i < card->num_rtd; i++) { |
1153 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1154 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1155 | |
f0fba2ad | 1156 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1157 | continue; |
1158 | ||
f0fba2ad LG |
1159 | if (drv->ops->digital_mute && dai->playback_active) |
1160 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1161 | } |
1162 | ||
f0fba2ad LG |
1163 | for (i = 0; i < card->num_rtd; i++) { |
1164 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1165 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1166 | |
f0fba2ad | 1167 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1168 | continue; |
1169 | ||
f0fba2ad LG |
1170 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1171 | cpu_dai->driver->resume(cpu_dai); | |
1172 | if (platform->driver->resume && platform->suspended) { | |
1173 | platform->driver->resume(cpu_dai); | |
1174 | platform->suspended = 0; | |
1175 | } | |
db2a4165 FM |
1176 | } |
1177 | ||
87506549 MB |
1178 | if (card->resume_post) |
1179 | card->resume_post(pdev); | |
db2a4165 | 1180 | |
f0fba2ad | 1181 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1182 | |
1183 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1184 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1185 | } |
1186 | ||
1187 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1188 | static int soc_resume(struct device *dev) |
6ed25978 | 1189 | { |
416356fc | 1190 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1191 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1192 | int i; | |
b9dd94a8 | 1193 | |
64ab9baa MB |
1194 | /* AC97 devices might have other drivers hanging off them so |
1195 | * need to resume immediately. Other drivers don't have that | |
1196 | * problem and may take a substantial amount of time to resume | |
1197 | * due to I/O costs and anti-pop so handle them out of line. | |
1198 | */ | |
f0fba2ad LG |
1199 | for (i = 0; i < card->num_rtd; i++) { |
1200 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1201 | if (cpu_dai->driver->ac97_control) { | |
1202 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1203 | soc_resume_deferred(&card->deferred_resume_work); | |
1204 | } else { | |
1205 | dev_dbg(dev, "Scheduling resume work\n"); | |
1206 | if (!schedule_work(&card->deferred_resume_work)) | |
1207 | dev_err(dev, "resume work item may be lost\n"); | |
1208 | } | |
64ab9baa | 1209 | } |
6ed25978 | 1210 | |
db2a4165 FM |
1211 | return 0; |
1212 | } | |
db2a4165 FM |
1213 | #else |
1214 | #define soc_suspend NULL | |
1215 | #define soc_resume NULL | |
1216 | #endif | |
1217 | ||
02a06d30 BS |
1218 | static struct snd_soc_dai_ops null_dai_ops = { |
1219 | }; | |
1220 | ||
f0fba2ad | 1221 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1222 | { |
f0fba2ad LG |
1223 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1224 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1225 | struct snd_soc_codec *codec; |
435c5e25 | 1226 | struct snd_soc_platform *platform; |
f0fba2ad | 1227 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1228 | |
f0fba2ad LG |
1229 | if (rtd->complete) |
1230 | return 1; | |
1231 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1232 | |
f0fba2ad LG |
1233 | /* do we already have the CPU DAI for this link ? */ |
1234 | if (rtd->cpu_dai) { | |
1235 | goto find_codec; | |
1236 | } | |
1237 | /* no, then find CPU DAI from registered DAIs*/ | |
1238 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1239 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1240 | ||
1241 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1242 | return -ENODEV; | |
1243 | ||
1244 | rtd->cpu_dai = cpu_dai; | |
1245 | goto find_codec; | |
435c5e25 | 1246 | } |
435c5e25 | 1247 | } |
f0fba2ad LG |
1248 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1249 | dai_link->cpu_dai_name); | |
6308419a | 1250 | |
f0fba2ad LG |
1251 | find_codec: |
1252 | /* do we already have the CODEC for this link ? */ | |
1253 | if (rtd->codec) { | |
1254 | goto find_platform; | |
1255 | } | |
1256 | ||
1257 | /* no, then find CODEC from registered CODECs*/ | |
1258 | list_for_each_entry(codec, &codec_list, list) { | |
1259 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1260 | rtd->codec = codec; | |
1261 | ||
f0fba2ad LG |
1262 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1263 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1264 | if (codec->dev == codec_dai->dev && | |
1265 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1266 | rtd->codec_dai = codec_dai; | |
1267 | goto find_platform; | |
1268 | } | |
435c5e25 | 1269 | } |
f0fba2ad LG |
1270 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1271 | dai_link->codec_dai_name); | |
1272 | ||
1273 | goto find_platform; | |
435c5e25 | 1274 | } |
f0fba2ad LG |
1275 | } |
1276 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1277 | dai_link->codec_name); | |
6b05eda6 | 1278 | |
f0fba2ad LG |
1279 | find_platform: |
1280 | /* do we already have the CODEC DAI for this link ? */ | |
1281 | if (rtd->platform) { | |
1282 | goto out; | |
c5af3a2e | 1283 | } |
f0fba2ad LG |
1284 | /* no, then find CPU DAI from registered DAIs*/ |
1285 | list_for_each_entry(platform, &platform_list, list) { | |
1286 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1287 | rtd->platform = platform; |
1288 | goto out; | |
1289 | } | |
02a06d30 BS |
1290 | } |
1291 | ||
f0fba2ad LG |
1292 | dev_dbg(card->dev, "platform %s not registered\n", |
1293 | dai_link->platform_name); | |
1294 | return 0; | |
1295 | ||
1296 | out: | |
1297 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1298 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1299 | rtd->complete = 1; | |
1300 | card->num_rtd++; | |
1301 | } | |
1302 | return 1; | |
1303 | } | |
1304 | ||
589c3563 JN |
1305 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1306 | { | |
1307 | int err; | |
1308 | ||
1309 | if (codec->driver->remove) { | |
1310 | err = codec->driver->remove(codec); | |
1311 | if (err < 0) | |
1312 | dev_err(codec->dev, | |
1313 | "asoc: failed to remove %s: %d\n", | |
1314 | codec->name, err); | |
1315 | } | |
1316 | ||
1317 | /* Make sure all DAPM widgets are freed */ | |
1318 | snd_soc_dapm_free(&codec->dapm); | |
1319 | ||
1320 | soc_cleanup_codec_debugfs(codec); | |
1321 | codec->probed = 0; | |
1322 | list_del(&codec->card_list); | |
1323 | module_put(codec->dev->driver->owner); | |
1324 | } | |
1325 | ||
f0fba2ad LG |
1326 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1327 | { | |
1328 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1329 | struct snd_soc_codec *codec = rtd->codec; | |
1330 | struct snd_soc_platform *platform = rtd->platform; | |
1331 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1332 | int err; | |
1333 | ||
1334 | /* unregister the rtd device */ | |
1335 | if (rtd->dev_registered) { | |
1336 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1337 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1338 | device_unregister(&rtd->dev); |
1339 | rtd->dev_registered = 0; | |
1340 | } | |
1341 | ||
1342 | /* remove the CODEC DAI */ | |
1343 | if (codec_dai && codec_dai->probed) { | |
1344 | if (codec_dai->driver->remove) { | |
1345 | err = codec_dai->driver->remove(codec_dai); | |
1346 | if (err < 0) | |
1347 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1348 | } |
f0fba2ad LG |
1349 | codec_dai->probed = 0; |
1350 | list_del(&codec_dai->card_list); | |
1351 | } | |
6b05eda6 | 1352 | |
f0fba2ad LG |
1353 | /* remove the platform */ |
1354 | if (platform && platform->probed) { | |
1355 | if (platform->driver->remove) { | |
1356 | err = platform->driver->remove(platform); | |
1357 | if (err < 0) | |
1358 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1359 | } | |
1360 | platform->probed = 0; | |
1361 | list_del(&platform->card_list); | |
1362 | module_put(platform->dev->driver->owner); | |
1363 | } | |
435c5e25 | 1364 | |
f0fba2ad | 1365 | /* remove the CODEC */ |
589c3563 JN |
1366 | if (codec && codec->probed) |
1367 | soc_remove_codec(codec); | |
db2a4165 | 1368 | |
f0fba2ad LG |
1369 | /* remove the cpu_dai */ |
1370 | if (cpu_dai && cpu_dai->probed) { | |
1371 | if (cpu_dai->driver->remove) { | |
1372 | err = cpu_dai->driver->remove(cpu_dai); | |
1373 | if (err < 0) | |
1374 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1375 | } |
f0fba2ad LG |
1376 | cpu_dai->probed = 0; |
1377 | list_del(&cpu_dai->card_list); | |
1378 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1379 | } |
f0fba2ad | 1380 | } |
db2a4165 | 1381 | |
ead9b919 JN |
1382 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1383 | struct snd_soc_codec *codec) | |
1384 | { | |
1385 | int i; | |
1386 | ||
ff819b83 | 1387 | if (card->codec_conf == NULL) |
ead9b919 JN |
1388 | return; |
1389 | ||
ff819b83 DP |
1390 | for (i = 0; i < card->num_configs; i++) { |
1391 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1392 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1393 | codec->name_prefix = map->name_prefix; | |
1394 | break; | |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | ||
589c3563 JN |
1399 | static int soc_probe_codec(struct snd_soc_card *card, |
1400 | struct snd_soc_codec *codec) | |
1401 | { | |
1402 | int ret = 0; | |
1403 | ||
1404 | codec->card = card; | |
1405 | codec->dapm.card = card; | |
1406 | soc_set_name_prefix(card, codec); | |
1407 | ||
1408 | if (codec->driver->probe) { | |
1409 | ret = codec->driver->probe(codec); | |
1410 | if (ret < 0) { | |
1411 | dev_err(codec->dev, | |
1412 | "asoc: failed to probe CODEC %s: %d\n", | |
1413 | codec->name, ret); | |
1414 | return ret; | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | soc_init_codec_debugfs(codec); | |
1419 | ||
1420 | /* mark codec as probed and add to card codec list */ | |
f6c2ed5d HP |
1421 | if (!try_module_get(codec->dev->driver->owner)) |
1422 | return -ENODEV; | |
1423 | ||
589c3563 JN |
1424 | codec->probed = 1; |
1425 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1426 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 JN |
1427 | |
1428 | return ret; | |
1429 | } | |
1430 | ||
f0fba2ad LG |
1431 | static void rtd_release(struct device *dev) {} |
1432 | ||
589c3563 JN |
1433 | static int soc_post_component_init(struct snd_soc_card *card, |
1434 | struct snd_soc_codec *codec, | |
1435 | int num, int dailess) | |
1436 | { | |
1437 | struct snd_soc_dai_link *dai_link = NULL; | |
1438 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1439 | struct snd_soc_pcm_runtime *rtd; | |
1440 | const char *temp, *name; | |
1441 | int ret = 0; | |
1442 | ||
1443 | if (!dailess) { | |
1444 | dai_link = &card->dai_link[num]; | |
1445 | rtd = &card->rtd[num]; | |
1446 | name = dai_link->name; | |
1447 | } else { | |
1448 | aux_dev = &card->aux_dev[num]; | |
1449 | rtd = &card->rtd_aux[num]; | |
1450 | name = aux_dev->name; | |
1451 | } | |
1452 | ||
1453 | /* machine controls, routes and widgets are not prefixed */ | |
1454 | temp = codec->name_prefix; | |
1455 | codec->name_prefix = NULL; | |
1456 | ||
1457 | /* do machine specific initialization */ | |
1458 | if (!dailess && dai_link->init) | |
1459 | ret = dai_link->init(rtd); | |
1460 | else if (dailess && aux_dev->init) | |
1461 | ret = aux_dev->init(&codec->dapm); | |
1462 | if (ret < 0) { | |
1463 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1464 | return ret; | |
1465 | } | |
1466 | codec->name_prefix = temp; | |
1467 | ||
1468 | /* Make sure all DAPM widgets are instantiated */ | |
1469 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1470 | snd_soc_dapm_sync(&codec->dapm); | |
1471 | ||
1472 | /* register the rtd device */ | |
1473 | rtd->codec = codec; | |
1474 | rtd->card = card; | |
1475 | rtd->dev.parent = card->dev; | |
1476 | rtd->dev.release = rtd_release; | |
1477 | rtd->dev.init_name = name; | |
1478 | ret = device_register(&rtd->dev); | |
1479 | if (ret < 0) { | |
1480 | dev_err(card->dev, | |
1481 | "asoc: failed to register runtime device: %d\n", ret); | |
1482 | return ret; | |
1483 | } | |
1484 | rtd->dev_registered = 1; | |
1485 | ||
1486 | /* add DAPM sysfs entries for this codec */ | |
1487 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1488 | if (ret < 0) | |
1489 | dev_err(codec->dev, | |
1490 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1491 | ret); | |
1492 | ||
1493 | /* add codec sysfs entries */ | |
1494 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1495 | if (ret < 0) | |
1496 | dev_err(codec->dev, | |
1497 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1498 | ||
1499 | return 0; | |
1500 | } | |
1501 | ||
f0fba2ad LG |
1502 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1503 | { | |
1504 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1505 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1506 | struct snd_soc_codec *codec = rtd->codec; | |
1507 | struct snd_soc_platform *platform = rtd->platform; | |
1508 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1509 | int ret; | |
1510 | ||
1511 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1512 | ||
1513 | /* config components */ | |
1514 | codec_dai->codec = codec; | |
f0fba2ad | 1515 | cpu_dai->platform = platform; |
f0fba2ad LG |
1516 | codec_dai->card = card; |
1517 | cpu_dai->card = card; | |
1518 | ||
1519 | /* set default power off timeout */ | |
1520 | rtd->pmdown_time = pmdown_time; | |
1521 | ||
1522 | /* probe the cpu_dai */ | |
1523 | if (!cpu_dai->probed) { | |
1524 | if (cpu_dai->driver->probe) { | |
1525 | ret = cpu_dai->driver->probe(cpu_dai); | |
1526 | if (ret < 0) { | |
1527 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1528 | cpu_dai->name); | |
1529 | return ret; | |
1530 | } | |
1531 | } | |
1532 | cpu_dai->probed = 1; | |
1533 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1534 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1535 | } |
1536 | ||
f0fba2ad LG |
1537 | /* probe the CODEC */ |
1538 | if (!codec->probed) { | |
589c3563 JN |
1539 | ret = soc_probe_codec(card, codec); |
1540 | if (ret < 0) | |
1541 | return ret; | |
db2a4165 FM |
1542 | } |
1543 | ||
f0fba2ad LG |
1544 | /* probe the platform */ |
1545 | if (!platform->probed) { | |
1546 | if (platform->driver->probe) { | |
1547 | ret = platform->driver->probe(platform); | |
1548 | if (ret < 0) { | |
1549 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1550 | platform->name); | |
1551 | return ret; | |
1552 | } | |
1553 | } | |
1554 | /* mark platform as probed and add to card platform list */ | |
f6c2ed5d HP |
1555 | |
1556 | if (!try_module_get(platform->dev->driver->owner)) | |
1557 | return -ENODEV; | |
1558 | ||
f0fba2ad LG |
1559 | platform->probed = 1; |
1560 | list_add(&platform->card_list, &card->platform_dev_list); | |
1561 | } | |
6ed25978 | 1562 | |
f0fba2ad LG |
1563 | /* probe the CODEC DAI */ |
1564 | if (!codec_dai->probed) { | |
1565 | if (codec_dai->driver->probe) { | |
1566 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1567 | if (ret < 0) { |
f0fba2ad LG |
1568 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1569 | codec_dai->name); | |
1570 | return ret; | |
fe3e78e0 MB |
1571 | } |
1572 | } | |
f0fba2ad LG |
1573 | |
1574 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1575 | codec_dai->probed = 1; | |
1576 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1577 | } |
1578 | ||
f0fba2ad LG |
1579 | /* DAPM dai link stream work */ |
1580 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1581 | ||
589c3563 JN |
1582 | ret = soc_post_component_init(card, codec, num, 0); |
1583 | if (ret) | |
f0fba2ad | 1584 | return ret; |
fe3e78e0 | 1585 | |
f0fba2ad LG |
1586 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1587 | if (ret < 0) | |
1588 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1589 | ||
f0fba2ad LG |
1590 | /* create the pcm */ |
1591 | ret = soc_new_pcm(rtd, num); | |
1592 | if (ret < 0) { | |
1593 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1594 | return ret; | |
1595 | } | |
1596 | ||
1597 | /* add platform data for AC97 devices */ | |
1598 | if (rtd->codec_dai->driver->ac97_control) | |
1599 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1600 | ||
1601 | return 0; | |
1602 | } | |
1603 | ||
fe3e78e0 | 1604 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1605 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1606 | { | |
1607 | int ret; | |
1608 | ||
fe3e78e0 MB |
1609 | /* Only instantiate AC97 if not already done by the adaptor |
1610 | * for the generic AC97 subsystem. | |
1611 | */ | |
f0fba2ad | 1612 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1613 | /* |
1614 | * It is possible that the AC97 device is already registered to | |
1615 | * the device subsystem. This happens when the device is created | |
1616 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1617 | * is the generic AC97 glue but others migh emerge. | |
1618 | * | |
1619 | * In those cases we don't try to register the device again. | |
1620 | */ | |
1621 | if (!rtd->codec->ac97_created) | |
1622 | return 0; | |
f0fba2ad LG |
1623 | |
1624 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1625 | if (ret < 0) { |
1626 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1627 | return ret; |
fe3e78e0 | 1628 | } |
f0fba2ad LG |
1629 | |
1630 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1631 | } |
f0fba2ad LG |
1632 | return 0; |
1633 | } | |
1634 | ||
1635 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1636 | { | |
1637 | if (codec->ac97_registered) { | |
1638 | soc_ac97_dev_unregister(codec); | |
1639 | codec->ac97_registered = 0; | |
1640 | } | |
1641 | } | |
fe3e78e0 MB |
1642 | #endif |
1643 | ||
2eea392d JN |
1644 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1645 | { | |
1646 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1647 | struct snd_soc_codec *codec; |
676ad98a | 1648 | int ret = -ENODEV; |
2eea392d JN |
1649 | |
1650 | /* find CODEC from registered CODECs*/ | |
1651 | list_for_each_entry(codec, &codec_list, list) { | |
1652 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1653 | if (codec->probed) { | |
1654 | dev_err(codec->dev, | |
1655 | "asoc: codec already probed"); | |
1656 | ret = -EBUSY; | |
1657 | goto out; | |
1658 | } | |
676ad98a | 1659 | goto found; |
2eea392d JN |
1660 | } |
1661 | } | |
676ad98a JN |
1662 | /* codec not found */ |
1663 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1664 | goto out; | |
2eea392d | 1665 | |
676ad98a | 1666 | found: |
2eea392d JN |
1667 | if (!try_module_get(codec->dev->driver->owner)) |
1668 | return -ENODEV; | |
1669 | ||
589c3563 | 1670 | ret = soc_probe_codec(card, codec); |
2eea392d | 1671 | if (ret < 0) |
589c3563 | 1672 | return ret; |
2eea392d | 1673 | |
589c3563 | 1674 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1675 | |
1676 | out: | |
1677 | return ret; | |
1678 | } | |
1679 | ||
1680 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1681 | { | |
1682 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1683 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1684 | |
1685 | /* unregister the rtd device */ | |
1686 | if (rtd->dev_registered) { | |
589c3563 | 1687 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1688 | device_unregister(&rtd->dev); |
1689 | rtd->dev_registered = 0; | |
1690 | } | |
1691 | ||
589c3563 JN |
1692 | if (codec && codec->probed) |
1693 | soc_remove_codec(codec); | |
2eea392d JN |
1694 | } |
1695 | ||
fdf0f54d DP |
1696 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1697 | enum snd_soc_compress_type compress_type) | |
1698 | { | |
1699 | int ret; | |
1700 | ||
1701 | if (codec->cache_init) | |
1702 | return 0; | |
1703 | ||
1704 | /* override the compress_type if necessary */ | |
1705 | if (compress_type && codec->compress_type != compress_type) | |
1706 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1707 | ret = snd_soc_cache_init(codec); |
1708 | if (ret < 0) { | |
1709 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1710 | ret); | |
1711 | return ret; | |
1712 | } | |
1713 | codec->cache_init = 1; | |
1714 | return 0; | |
1715 | } | |
1716 | ||
f0fba2ad LG |
1717 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1718 | { | |
1719 | struct platform_device *pdev = to_platform_device(card->dev); | |
fdf0f54d DP |
1720 | struct snd_soc_codec *codec; |
1721 | struct snd_soc_codec_conf *codec_conf; | |
1722 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1723 | int ret, i; |
fe3e78e0 | 1724 | |
f0fba2ad | 1725 | mutex_lock(&card->mutex); |
dbe21408 | 1726 | |
f0fba2ad LG |
1727 | if (card->instantiated) { |
1728 | mutex_unlock(&card->mutex); | |
1729 | return; | |
1730 | } | |
fe3e78e0 | 1731 | |
f0fba2ad LG |
1732 | /* bind DAIs */ |
1733 | for (i = 0; i < card->num_links; i++) | |
1734 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1735 | |
f0fba2ad LG |
1736 | /* bind completed ? */ |
1737 | if (card->num_rtd != card->num_links) { | |
1738 | mutex_unlock(&card->mutex); | |
1739 | return; | |
1740 | } | |
435c5e25 | 1741 | |
fdf0f54d DP |
1742 | /* initialize the register cache for each available codec */ |
1743 | list_for_each_entry(codec, &codec_list, list) { | |
1744 | if (codec->cache_init) | |
1745 | continue; | |
1746 | /* check to see if we need to override the compress_type */ | |
1747 | for (i = 0; i < card->num_configs; ++i) { | |
1748 | codec_conf = &card->codec_conf[i]; | |
1749 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1750 | compress_type = codec_conf->compress_type; | |
1751 | if (compress_type && compress_type | |
1752 | != codec->compress_type) | |
1753 | break; | |
1754 | } | |
1755 | } | |
1756 | if (i == card->num_configs) { | |
1757 | /* no need to override the compress_type so | |
1758 | * go ahead and do the standard thing */ | |
1759 | ret = snd_soc_init_codec_cache(codec, 0); | |
1760 | if (ret < 0) { | |
1761 | mutex_unlock(&card->mutex); | |
1762 | return; | |
1763 | } | |
1764 | continue; | |
1765 | } | |
1766 | /* override the compress_type with the one supplied in | |
1767 | * the machine driver */ | |
1768 | ret = snd_soc_init_codec_cache(codec, compress_type); | |
1769 | if (ret < 0) { | |
1770 | mutex_unlock(&card->mutex); | |
1771 | return; | |
1772 | } | |
1773 | } | |
1774 | ||
f0fba2ad LG |
1775 | /* card bind complete so register a sound card */ |
1776 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1777 | card->owner, 0, &card->snd_card); | |
1778 | if (ret < 0) { | |
1779 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1780 | card->name); | |
1781 | mutex_unlock(&card->mutex); | |
1782 | return; | |
1783 | } | |
1784 | card->snd_card->dev = card->dev; | |
1785 | ||
1786 | #ifdef CONFIG_PM | |
1787 | /* deferred resume work */ | |
1788 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1789 | #endif | |
db2a4165 | 1790 | |
f0fba2ad LG |
1791 | /* initialise the sound card only once */ |
1792 | if (card->probe) { | |
1793 | ret = card->probe(pdev); | |
1794 | if (ret < 0) | |
1795 | goto card_probe_error; | |
1796 | } | |
fe3e78e0 | 1797 | |
f0fba2ad LG |
1798 | for (i = 0; i < card->num_links; i++) { |
1799 | ret = soc_probe_dai_link(card, i); | |
1800 | if (ret < 0) { | |
321de0d0 MB |
1801 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1802 | card->name, ret); | |
f0fba2ad LG |
1803 | goto probe_dai_err; |
1804 | } | |
1805 | } | |
db2a4165 | 1806 | |
2eea392d JN |
1807 | for (i = 0; i < card->num_aux_devs; i++) { |
1808 | ret = soc_probe_aux_dev(card, i); | |
1809 | if (ret < 0) { | |
1810 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1811 | card->name, ret); | |
1812 | goto probe_aux_dev_err; | |
1813 | } | |
1814 | } | |
1815 | ||
f0fba2ad LG |
1816 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1817 | "%s", card->name); | |
1818 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1819 | "%s", card->name); | |
1820 | ||
1821 | ret = snd_card_register(card->snd_card); | |
1822 | if (ret < 0) { | |
1823 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1824 | goto probe_aux_dev_err; |
db2a4165 FM |
1825 | } |
1826 | ||
f0fba2ad LG |
1827 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1828 | /* register any AC97 codecs */ | |
1829 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1830 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1831 | if (ret < 0) { | |
1832 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1833 | while (--i >= 0) | |
7d8316df | 1834 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1835 | goto probe_aux_dev_err; |
f0fba2ad | 1836 | } |
6b3ed785 | 1837 | } |
f0fba2ad LG |
1838 | #endif |
1839 | ||
1840 | card->instantiated = 1; | |
1841 | mutex_unlock(&card->mutex); | |
1842 | return; | |
1843 | ||
2eea392d JN |
1844 | probe_aux_dev_err: |
1845 | for (i = 0; i < card->num_aux_devs; i++) | |
1846 | soc_remove_aux_dev(card, i); | |
1847 | ||
f0fba2ad LG |
1848 | probe_dai_err: |
1849 | for (i = 0; i < card->num_links; i++) | |
1850 | soc_remove_dai_link(card, i); | |
1851 | ||
1852 | card_probe_error: | |
87506549 MB |
1853 | if (card->remove) |
1854 | card->remove(pdev); | |
f0fba2ad LG |
1855 | |
1856 | snd_card_free(card->snd_card); | |
1857 | ||
1858 | mutex_unlock(&card->mutex); | |
435c5e25 | 1859 | } |
db2a4165 | 1860 | |
435c5e25 | 1861 | /* |
421f91d2 | 1862 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1863 | * client_mutex. |
1864 | */ | |
1865 | static void snd_soc_instantiate_cards(void) | |
1866 | { | |
1867 | struct snd_soc_card *card; | |
1868 | list_for_each_entry(card, &card_list, list) | |
1869 | snd_soc_instantiate_card(card); | |
1870 | } | |
1871 | ||
1872 | /* probes a new socdev */ | |
1873 | static int soc_probe(struct platform_device *pdev) | |
1874 | { | |
f0fba2ad | 1875 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1876 | int ret = 0; |
435c5e25 MB |
1877 | |
1878 | /* Bodge while we unpick instantiation */ | |
1879 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1880 | INIT_LIST_HEAD(&card->dai_dev_list); |
1881 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1882 | INIT_LIST_HEAD(&card->platform_dev_list); | |
97c866de | 1883 | INIT_LIST_HEAD(&card->widgets); |
8ddab3f5 | 1884 | INIT_LIST_HEAD(&card->paths); |
7be31be8 | 1885 | INIT_LIST_HEAD(&card->dapm_list); |
f0fba2ad | 1886 | |
a6052154 JN |
1887 | soc_init_card_debugfs(card); |
1888 | ||
435c5e25 MB |
1889 | ret = snd_soc_register_card(card); |
1890 | if (ret != 0) { | |
1891 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1892 | return ret; | |
1893 | } | |
1894 | ||
1895 | return 0; | |
db2a4165 FM |
1896 | } |
1897 | ||
1898 | /* removes a socdev */ | |
1899 | static int soc_remove(struct platform_device *pdev) | |
1900 | { | |
f0fba2ad | 1901 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1902 | int i; |
db2a4165 | 1903 | |
f0fba2ad | 1904 | if (card->instantiated) { |
914dc182 | 1905 | |
f0fba2ad LG |
1906 | /* make sure any delayed work runs */ |
1907 | for (i = 0; i < card->num_rtd; i++) { | |
1908 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1909 | flush_delayed_work_sync(&rtd->delayed_work); |
b2dfa62c | 1910 | } |
db2a4165 | 1911 | |
2eea392d JN |
1912 | /* remove auxiliary devices */ |
1913 | for (i = 0; i < card->num_aux_devs; i++) | |
1914 | soc_remove_aux_dev(card, i); | |
1915 | ||
f0fba2ad LG |
1916 | /* remove and free each DAI */ |
1917 | for (i = 0; i < card->num_rtd; i++) | |
1918 | soc_remove_dai_link(card, i); | |
1919 | ||
a6052154 JN |
1920 | soc_cleanup_card_debugfs(card); |
1921 | ||
f0fba2ad | 1922 | /* remove the card */ |
b2dfa62c GL |
1923 | if (card->remove) |
1924 | card->remove(pdev); | |
db2a4165 | 1925 | |
f0fba2ad LG |
1926 | kfree(card->rtd); |
1927 | snd_card_free(card->snd_card); | |
1928 | } | |
c5af3a2e | 1929 | snd_soc_unregister_card(card); |
db2a4165 FM |
1930 | return 0; |
1931 | } | |
1932 | ||
416356fc | 1933 | static int soc_poweroff(struct device *dev) |
51737470 | 1934 | { |
416356fc | 1935 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1936 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1937 | int i; | |
51737470 MB |
1938 | |
1939 | if (!card->instantiated) | |
416356fc | 1940 | return 0; |
51737470 MB |
1941 | |
1942 | /* Flush out pmdown_time work - we actually do want to run it | |
1943 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1944 | for (i = 0; i < card->num_rtd; i++) { |
1945 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1946 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1947 | } |
51737470 | 1948 | |
f0fba2ad | 1949 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1950 | |
1951 | return 0; | |
51737470 MB |
1952 | } |
1953 | ||
47145210 | 1954 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1955 | .suspend = soc_suspend, |
1956 | .resume = soc_resume, | |
1957 | .poweroff = soc_poweroff, | |
1958 | }; | |
1959 | ||
db2a4165 FM |
1960 | /* ASoC platform driver */ |
1961 | static struct platform_driver soc_driver = { | |
1962 | .driver = { | |
1963 | .name = "soc-audio", | |
8b45a209 | 1964 | .owner = THIS_MODULE, |
416356fc | 1965 | .pm = &soc_pm_ops, |
db2a4165 FM |
1966 | }, |
1967 | .probe = soc_probe, | |
1968 | .remove = soc_remove, | |
db2a4165 FM |
1969 | }; |
1970 | ||
1971 | /* create a new pcm */ | |
f0fba2ad LG |
1972 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1973 | { | |
1974 | struct snd_soc_codec *codec = rtd->codec; | |
1975 | struct snd_soc_platform *platform = rtd->platform; | |
1976 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1977 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1978 | struct snd_pcm *pcm; |
1979 | char new_name[64]; | |
1980 | int ret = 0, playback = 0, capture = 0; | |
1981 | ||
db2a4165 | 1982 | /* check client and interface hw capabilities */ |
40ca1142 | 1983 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1984 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1985 | |
f0fba2ad | 1986 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1987 | playback = 1; |
f0fba2ad | 1988 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1989 | capture = 1; |
1990 | ||
f0fba2ad LG |
1991 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1992 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1993 | num, playback, capture, &pcm); | |
db2a4165 | 1994 | if (ret < 0) { |
f0fba2ad | 1995 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1996 | return ret; |
1997 | } | |
1998 | ||
f0fba2ad | 1999 | rtd->pcm = pcm; |
db2a4165 | 2000 | pcm->private_data = rtd; |
f0fba2ad LG |
2001 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
2002 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2003 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2004 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2005 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2006 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2007 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2008 | |
2009 | if (playback) | |
2010 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2011 | ||
2012 | if (capture) | |
2013 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2014 | ||
f0fba2ad | 2015 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2016 | if (ret < 0) { |
2017 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2018 | return ret; |
2019 | } | |
2020 | ||
f0fba2ad | 2021 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2022 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2023 | cpu_dai->name); | |
2024 | return ret; | |
2025 | } | |
2026 | ||
096e49d5 MB |
2027 | /** |
2028 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2029 | * | |
2030 | * @codec: CODEC to query. | |
2031 | * @reg: Register to query. | |
2032 | * | |
2033 | * Boolean function indiciating if a CODEC register is volatile. | |
2034 | */ | |
2035 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
2036 | { | |
f0fba2ad LG |
2037 | if (codec->driver->volatile_register) |
2038 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
2039 | else |
2040 | return 0; | |
2041 | } | |
2042 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2043 | ||
db2a4165 FM |
2044 | /** |
2045 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2046 | * @codec: audio codec | |
2047 | * @ops: AC97 bus operations | |
2048 | * @num: AC97 codec number | |
2049 | * | |
2050 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2051 | */ | |
2052 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2053 | struct snd_ac97_bus_ops *ops, int num) | |
2054 | { | |
2055 | mutex_lock(&codec->mutex); | |
2056 | ||
2057 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2058 | if (codec->ac97 == NULL) { | |
2059 | mutex_unlock(&codec->mutex); | |
2060 | return -ENOMEM; | |
2061 | } | |
2062 | ||
2063 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2064 | if (codec->ac97->bus == NULL) { | |
2065 | kfree(codec->ac97); | |
2066 | codec->ac97 = NULL; | |
2067 | mutex_unlock(&codec->mutex); | |
2068 | return -ENOMEM; | |
2069 | } | |
2070 | ||
2071 | codec->ac97->bus->ops = ops; | |
2072 | codec->ac97->num = num; | |
0562f788 MW |
2073 | |
2074 | /* | |
2075 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2076 | * device will be registered with the device subsystem later on. | |
2077 | */ | |
2078 | codec->ac97_created = 1; | |
2079 | ||
db2a4165 FM |
2080 | mutex_unlock(&codec->mutex); |
2081 | return 0; | |
2082 | } | |
2083 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2084 | ||
2085 | /** | |
2086 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2087 | * @codec: audio codec | |
2088 | * | |
2089 | * Frees AC97 codec device resources. | |
2090 | */ | |
2091 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2092 | { | |
2093 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2094 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2095 | soc_unregister_ac97_dai_link(codec); | |
2096 | #endif | |
db2a4165 FM |
2097 | kfree(codec->ac97->bus); |
2098 | kfree(codec->ac97); | |
2099 | codec->ac97 = NULL; | |
0562f788 | 2100 | codec->ac97_created = 0; |
db2a4165 FM |
2101 | mutex_unlock(&codec->mutex); |
2102 | } | |
2103 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2104 | ||
c3753707 MB |
2105 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2106 | { | |
2107 | unsigned int ret; | |
2108 | ||
c3acec26 | 2109 | ret = codec->read(codec, reg); |
c3753707 | 2110 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2111 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2112 | |
2113 | return ret; | |
2114 | } | |
2115 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2116 | ||
2117 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2118 | unsigned int reg, unsigned int val) | |
2119 | { | |
2120 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2121 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2122 | return codec->write(codec, reg, val); |
c3753707 MB |
2123 | } |
2124 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2125 | ||
db2a4165 FM |
2126 | /** |
2127 | * snd_soc_update_bits - update codec register bits | |
2128 | * @codec: audio codec | |
2129 | * @reg: codec register | |
2130 | * @mask: register mask | |
2131 | * @value: new value | |
2132 | * | |
2133 | * Writes new register value. | |
2134 | * | |
2135 | * Returns 1 for change else 0. | |
2136 | */ | |
2137 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2138 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2139 | { |
2140 | int change; | |
46f5822f | 2141 | unsigned int old, new; |
db2a4165 | 2142 | |
db2a4165 FM |
2143 | old = snd_soc_read(codec, reg); |
2144 | new = (old & ~mask) | value; | |
2145 | change = old != new; | |
2146 | if (change) | |
2147 | snd_soc_write(codec, reg, new); | |
2148 | ||
db2a4165 FM |
2149 | return change; |
2150 | } | |
2151 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2152 | ||
6c508c62 EN |
2153 | /** |
2154 | * snd_soc_update_bits_locked - update codec register bits | |
2155 | * @codec: audio codec | |
2156 | * @reg: codec register | |
2157 | * @mask: register mask | |
2158 | * @value: new value | |
2159 | * | |
2160 | * Writes new register value, and takes the codec mutex. | |
2161 | * | |
2162 | * Returns 1 for change else 0. | |
2163 | */ | |
dd1b3d53 MB |
2164 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2165 | unsigned short reg, unsigned int mask, | |
2166 | unsigned int value) | |
6c508c62 EN |
2167 | { |
2168 | int change; | |
2169 | ||
2170 | mutex_lock(&codec->mutex); | |
2171 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2172 | mutex_unlock(&codec->mutex); | |
2173 | ||
2174 | return change; | |
2175 | } | |
dd1b3d53 | 2176 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2177 | |
db2a4165 FM |
2178 | /** |
2179 | * snd_soc_test_bits - test register for change | |
2180 | * @codec: audio codec | |
2181 | * @reg: codec register | |
2182 | * @mask: register mask | |
2183 | * @value: new value | |
2184 | * | |
2185 | * Tests a register with a new value and checks if the new value is | |
2186 | * different from the old value. | |
2187 | * | |
2188 | * Returns 1 for change else 0. | |
2189 | */ | |
2190 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2191 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2192 | { |
2193 | int change; | |
46f5822f | 2194 | unsigned int old, new; |
db2a4165 | 2195 | |
db2a4165 FM |
2196 | old = snd_soc_read(codec, reg); |
2197 | new = (old & ~mask) | value; | |
2198 | change = old != new; | |
db2a4165 FM |
2199 | |
2200 | return change; | |
2201 | } | |
2202 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2203 | ||
db2a4165 FM |
2204 | /** |
2205 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2206 | * @substream: the pcm substream | |
2207 | * @hw: the hardware parameters | |
2208 | * | |
2209 | * Sets the substream runtime hardware parameters. | |
2210 | */ | |
2211 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2212 | const struct snd_pcm_hardware *hw) | |
2213 | { | |
2214 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2215 | runtime->hw.info = hw->info; | |
2216 | runtime->hw.formats = hw->formats; | |
2217 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2218 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2219 | runtime->hw.periods_min = hw->periods_min; | |
2220 | runtime->hw.periods_max = hw->periods_max; | |
2221 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2222 | runtime->hw.fifo_size = hw->fifo_size; | |
2223 | return 0; | |
2224 | } | |
2225 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2226 | ||
2227 | /** | |
2228 | * snd_soc_cnew - create new control | |
2229 | * @_template: control template | |
2230 | * @data: control private data | |
ac11a2b3 | 2231 | * @long_name: control long name |
db2a4165 FM |
2232 | * |
2233 | * Create a new mixer control from a template control. | |
2234 | * | |
2235 | * Returns 0 for success, else error. | |
2236 | */ | |
2237 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2238 | void *data, char *long_name) | |
2239 | { | |
2240 | struct snd_kcontrol_new template; | |
2241 | ||
2242 | memcpy(&template, _template, sizeof(template)); | |
2243 | if (long_name) | |
2244 | template.name = long_name; | |
db2a4165 FM |
2245 | template.index = 0; |
2246 | ||
2247 | return snd_ctl_new1(&template, data); | |
2248 | } | |
2249 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2250 | ||
3e8e1952 IM |
2251 | /** |
2252 | * snd_soc_add_controls - add an array of controls to a codec. | |
2253 | * Convienience function to add a list of controls. Many codecs were | |
2254 | * duplicating this code. | |
2255 | * | |
2256 | * @codec: codec to add controls to | |
2257 | * @controls: array of controls to add | |
2258 | * @num_controls: number of elements in the array | |
2259 | * | |
2260 | * Return 0 for success, else error. | |
2261 | */ | |
2262 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2263 | const struct snd_kcontrol_new *controls, int num_controls) | |
2264 | { | |
f0fba2ad | 2265 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2266 | char prefixed_name[44], *name; |
3e8e1952 IM |
2267 | int err, i; |
2268 | ||
2269 | for (i = 0; i < num_controls; i++) { | |
2270 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2271 | if (codec->name_prefix) { |
2272 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2273 | codec->name_prefix, control->name); | |
2274 | name = prefixed_name; | |
2275 | } else { | |
2276 | name = control->name; | |
2277 | } | |
2278 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2279 | if (err < 0) { |
082100dc | 2280 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2281 | codec->name, name, err); |
3e8e1952 IM |
2282 | return err; |
2283 | } | |
2284 | } | |
2285 | ||
2286 | return 0; | |
2287 | } | |
2288 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2289 | ||
db2a4165 FM |
2290 | /** |
2291 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2292 | * @kcontrol: mixer control | |
2293 | * @uinfo: control element information | |
2294 | * | |
2295 | * Callback to provide information about a double enumerated | |
2296 | * mixer control. | |
2297 | * | |
2298 | * Returns 0 for success. | |
2299 | */ | |
2300 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2301 | struct snd_ctl_elem_info *uinfo) | |
2302 | { | |
2303 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2304 | ||
2305 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2306 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2307 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2308 | |
f8ba0b7b JS |
2309 | if (uinfo->value.enumerated.item > e->max - 1) |
2310 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2311 | strcpy(uinfo->value.enumerated.name, |
2312 | e->texts[uinfo->value.enumerated.item]); | |
2313 | return 0; | |
2314 | } | |
2315 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2316 | ||
2317 | /** | |
2318 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2319 | * @kcontrol: mixer control | |
ac11a2b3 | 2320 | * @ucontrol: control element information |
db2a4165 FM |
2321 | * |
2322 | * Callback to get the value of a double enumerated mixer. | |
2323 | * | |
2324 | * Returns 0 for success. | |
2325 | */ | |
2326 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2327 | struct snd_ctl_elem_value *ucontrol) | |
2328 | { | |
2329 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2330 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2331 | unsigned int val, bitmask; |
db2a4165 | 2332 | |
f8ba0b7b | 2333 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2334 | ; |
2335 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2336 | ucontrol->value.enumerated.item[0] |
2337 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2338 | if (e->shift_l != e->shift_r) |
2339 | ucontrol->value.enumerated.item[1] = | |
2340 | (val >> e->shift_r) & (bitmask - 1); | |
2341 | ||
2342 | return 0; | |
2343 | } | |
2344 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2345 | ||
2346 | /** | |
2347 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2348 | * @kcontrol: mixer control | |
ac11a2b3 | 2349 | * @ucontrol: control element information |
db2a4165 FM |
2350 | * |
2351 | * Callback to set the value of a double enumerated mixer. | |
2352 | * | |
2353 | * Returns 0 for success. | |
2354 | */ | |
2355 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2356 | struct snd_ctl_elem_value *ucontrol) | |
2357 | { | |
2358 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2359 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2360 | unsigned int val; |
2361 | unsigned int mask, bitmask; | |
db2a4165 | 2362 | |
f8ba0b7b | 2363 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2364 | ; |
f8ba0b7b | 2365 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2366 | return -EINVAL; |
2367 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2368 | mask = (bitmask - 1) << e->shift_l; | |
2369 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2370 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2371 | return -EINVAL; |
2372 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2373 | mask |= (bitmask - 1) << e->shift_r; | |
2374 | } | |
2375 | ||
6c508c62 | 2376 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2377 | } |
2378 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2379 | ||
2e72f8e3 PU |
2380 | /** |
2381 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2382 | * @kcontrol: mixer control | |
2383 | * @ucontrol: control element information | |
2384 | * | |
2385 | * Callback to get the value of a double semi enumerated mixer. | |
2386 | * | |
2387 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2388 | * used for handling bitfield coded enumeration for example. | |
2389 | * | |
2390 | * Returns 0 for success. | |
2391 | */ | |
2392 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2393 | struct snd_ctl_elem_value *ucontrol) | |
2394 | { | |
2395 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2396 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2397 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2398 | |
2399 | reg_val = snd_soc_read(codec, e->reg); | |
2400 | val = (reg_val >> e->shift_l) & e->mask; | |
2401 | for (mux = 0; mux < e->max; mux++) { | |
2402 | if (val == e->values[mux]) | |
2403 | break; | |
2404 | } | |
2405 | ucontrol->value.enumerated.item[0] = mux; | |
2406 | if (e->shift_l != e->shift_r) { | |
2407 | val = (reg_val >> e->shift_r) & e->mask; | |
2408 | for (mux = 0; mux < e->max; mux++) { | |
2409 | if (val == e->values[mux]) | |
2410 | break; | |
2411 | } | |
2412 | ucontrol->value.enumerated.item[1] = mux; | |
2413 | } | |
2414 | ||
2415 | return 0; | |
2416 | } | |
2417 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2418 | ||
2419 | /** | |
2420 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2421 | * @kcontrol: mixer control | |
2422 | * @ucontrol: control element information | |
2423 | * | |
2424 | * Callback to set the value of a double semi enumerated mixer. | |
2425 | * | |
2426 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2427 | * used for handling bitfield coded enumeration for example. | |
2428 | * | |
2429 | * Returns 0 for success. | |
2430 | */ | |
2431 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2432 | struct snd_ctl_elem_value *ucontrol) | |
2433 | { | |
2434 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2435 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2436 | unsigned int val; |
2437 | unsigned int mask; | |
2e72f8e3 PU |
2438 | |
2439 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2440 | return -EINVAL; | |
2441 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2442 | mask = e->mask << e->shift_l; | |
2443 | if (e->shift_l != e->shift_r) { | |
2444 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2445 | return -EINVAL; | |
2446 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2447 | mask |= e->mask << e->shift_r; | |
2448 | } | |
2449 | ||
6c508c62 | 2450 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2451 | } |
2452 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2453 | ||
db2a4165 FM |
2454 | /** |
2455 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2456 | * @kcontrol: mixer control | |
2457 | * @uinfo: control element information | |
2458 | * | |
2459 | * Callback to provide information about an external enumerated | |
2460 | * single mixer. | |
2461 | * | |
2462 | * Returns 0 for success. | |
2463 | */ | |
2464 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2465 | struct snd_ctl_elem_info *uinfo) | |
2466 | { | |
2467 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2468 | ||
2469 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2470 | uinfo->count = 1; | |
f8ba0b7b | 2471 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2472 | |
f8ba0b7b JS |
2473 | if (uinfo->value.enumerated.item > e->max - 1) |
2474 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2475 | strcpy(uinfo->value.enumerated.name, |
2476 | e->texts[uinfo->value.enumerated.item]); | |
2477 | return 0; | |
2478 | } | |
2479 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2480 | ||
2481 | /** | |
2482 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2483 | * @kcontrol: mixer control | |
2484 | * @uinfo: control element information | |
2485 | * | |
2486 | * Callback to provide information about a single external mixer control. | |
2487 | * | |
2488 | * Returns 0 for success. | |
2489 | */ | |
2490 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2491 | struct snd_ctl_elem_info *uinfo) | |
2492 | { | |
a7a4ac86 PZ |
2493 | int max = kcontrol->private_value; |
2494 | ||
fd5dfad9 | 2495 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2496 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2497 | else | |
2498 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2499 | |
db2a4165 FM |
2500 | uinfo->count = 1; |
2501 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2502 | uinfo->value.integer.max = max; |
db2a4165 FM |
2503 | return 0; |
2504 | } | |
2505 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2506 | ||
db2a4165 FM |
2507 | /** |
2508 | * snd_soc_info_volsw - single mixer info callback | |
2509 | * @kcontrol: mixer control | |
2510 | * @uinfo: control element information | |
2511 | * | |
2512 | * Callback to provide information about a single mixer control. | |
2513 | * | |
2514 | * Returns 0 for success. | |
2515 | */ | |
2516 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2517 | struct snd_ctl_elem_info *uinfo) | |
2518 | { | |
4eaa9819 JS |
2519 | struct soc_mixer_control *mc = |
2520 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2521 | int platform_max; |
762b8df7 | 2522 | unsigned int shift = mc->shift; |
815ecf8d | 2523 | unsigned int rshift = mc->rshift; |
db2a4165 | 2524 | |
d11bb4a9 PU |
2525 | if (!mc->platform_max) |
2526 | mc->platform_max = mc->max; | |
2527 | platform_max = mc->platform_max; | |
2528 | ||
2529 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2530 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2531 | else | |
2532 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2533 | ||
db2a4165 FM |
2534 | uinfo->count = shift == rshift ? 1 : 2; |
2535 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2536 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2537 | return 0; |
2538 | } | |
2539 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2540 | ||
2541 | /** | |
2542 | * snd_soc_get_volsw - single mixer get callback | |
2543 | * @kcontrol: mixer control | |
ac11a2b3 | 2544 | * @ucontrol: control element information |
db2a4165 FM |
2545 | * |
2546 | * Callback to get the value of a single mixer control. | |
2547 | * | |
2548 | * Returns 0 for success. | |
2549 | */ | |
2550 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2551 | struct snd_ctl_elem_value *ucontrol) | |
2552 | { | |
4eaa9819 JS |
2553 | struct soc_mixer_control *mc = |
2554 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2555 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2556 | unsigned int reg = mc->reg; |
2557 | unsigned int shift = mc->shift; | |
2558 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2559 | int max = mc->max; |
815ecf8d JS |
2560 | unsigned int mask = (1 << fls(max)) - 1; |
2561 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2562 | |
2563 | ucontrol->value.integer.value[0] = | |
2564 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2565 | if (shift != rshift) | |
2566 | ucontrol->value.integer.value[1] = | |
2567 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2568 | if (invert) { | |
2569 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2570 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2571 | if (shift != rshift) |
2572 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2573 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2574 | } |
2575 | ||
2576 | return 0; | |
2577 | } | |
2578 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2579 | ||
2580 | /** | |
2581 | * snd_soc_put_volsw - single mixer put callback | |
2582 | * @kcontrol: mixer control | |
ac11a2b3 | 2583 | * @ucontrol: control element information |
db2a4165 FM |
2584 | * |
2585 | * Callback to set the value of a single mixer control. | |
2586 | * | |
2587 | * Returns 0 for success. | |
2588 | */ | |
2589 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2590 | struct snd_ctl_elem_value *ucontrol) | |
2591 | { | |
4eaa9819 JS |
2592 | struct soc_mixer_control *mc = |
2593 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2594 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2595 | unsigned int reg = mc->reg; |
2596 | unsigned int shift = mc->shift; | |
2597 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2598 | int max = mc->max; |
815ecf8d JS |
2599 | unsigned int mask = (1 << fls(max)) - 1; |
2600 | unsigned int invert = mc->invert; | |
46f5822f | 2601 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2602 | |
2603 | val = (ucontrol->value.integer.value[0] & mask); | |
2604 | if (invert) | |
a7a4ac86 | 2605 | val = max - val; |
db2a4165 FM |
2606 | val_mask = mask << shift; |
2607 | val = val << shift; | |
2608 | if (shift != rshift) { | |
2609 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2610 | if (invert) | |
a7a4ac86 | 2611 | val2 = max - val2; |
db2a4165 FM |
2612 | val_mask |= mask << rshift; |
2613 | val |= val2 << rshift; | |
2614 | } | |
6c508c62 | 2615 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2616 | } |
2617 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2618 | ||
2619 | /** | |
2620 | * snd_soc_info_volsw_2r - double mixer info callback | |
2621 | * @kcontrol: mixer control | |
2622 | * @uinfo: control element information | |
2623 | * | |
2624 | * Callback to provide information about a double mixer control that | |
2625 | * spans 2 codec registers. | |
2626 | * | |
2627 | * Returns 0 for success. | |
2628 | */ | |
2629 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2630 | struct snd_ctl_elem_info *uinfo) | |
2631 | { | |
4eaa9819 JS |
2632 | struct soc_mixer_control *mc = |
2633 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2634 | int platform_max; |
a7a4ac86 | 2635 | |
d11bb4a9 PU |
2636 | if (!mc->platform_max) |
2637 | mc->platform_max = mc->max; | |
2638 | platform_max = mc->platform_max; | |
2639 | ||
2640 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2641 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2642 | else | |
2643 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2644 | |
db2a4165 FM |
2645 | uinfo->count = 2; |
2646 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2647 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2648 | return 0; |
2649 | } | |
2650 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2651 | ||
2652 | /** | |
2653 | * snd_soc_get_volsw_2r - double mixer get callback | |
2654 | * @kcontrol: mixer control | |
ac11a2b3 | 2655 | * @ucontrol: control element information |
db2a4165 FM |
2656 | * |
2657 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2658 | * | |
2659 | * Returns 0 for success. | |
2660 | */ | |
2661 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2662 | struct snd_ctl_elem_value *ucontrol) | |
2663 | { | |
4eaa9819 JS |
2664 | struct soc_mixer_control *mc = |
2665 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2666 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2667 | unsigned int reg = mc->reg; |
2668 | unsigned int reg2 = mc->rreg; | |
2669 | unsigned int shift = mc->shift; | |
4eaa9819 | 2670 | int max = mc->max; |
46f5822f | 2671 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2672 | unsigned int invert = mc->invert; |
db2a4165 FM |
2673 | |
2674 | ucontrol->value.integer.value[0] = | |
2675 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2676 | ucontrol->value.integer.value[1] = | |
2677 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2678 | if (invert) { | |
2679 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2680 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2681 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2682 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2683 | } |
2684 | ||
2685 | return 0; | |
2686 | } | |
2687 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2688 | ||
2689 | /** | |
2690 | * snd_soc_put_volsw_2r - double mixer set callback | |
2691 | * @kcontrol: mixer control | |
ac11a2b3 | 2692 | * @ucontrol: control element information |
db2a4165 FM |
2693 | * |
2694 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2695 | * | |
2696 | * Returns 0 for success. | |
2697 | */ | |
2698 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2699 | struct snd_ctl_elem_value *ucontrol) | |
2700 | { | |
4eaa9819 JS |
2701 | struct soc_mixer_control *mc = |
2702 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2703 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2704 | unsigned int reg = mc->reg; |
2705 | unsigned int reg2 = mc->rreg; | |
2706 | unsigned int shift = mc->shift; | |
4eaa9819 | 2707 | int max = mc->max; |
815ecf8d JS |
2708 | unsigned int mask = (1 << fls(max)) - 1; |
2709 | unsigned int invert = mc->invert; | |
db2a4165 | 2710 | int err; |
46f5822f | 2711 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2712 | |
2713 | val_mask = mask << shift; | |
2714 | val = (ucontrol->value.integer.value[0] & mask); | |
2715 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2716 | ||
2717 | if (invert) { | |
a7a4ac86 PZ |
2718 | val = max - val; |
2719 | val2 = max - val2; | |
db2a4165 FM |
2720 | } |
2721 | ||
2722 | val = val << shift; | |
2723 | val2 = val2 << shift; | |
2724 | ||
6c508c62 | 2725 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2726 | if (err < 0) |
db2a4165 FM |
2727 | return err; |
2728 | ||
6c508c62 | 2729 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2730 | return err; |
2731 | } | |
2732 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2733 | ||
e13ac2e9 MB |
2734 | /** |
2735 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2736 | * @kcontrol: mixer control | |
2737 | * @uinfo: control element information | |
2738 | * | |
2739 | * Callback to provide information about a signed mixer control. | |
2740 | * | |
2741 | * Returns 0 for success. | |
2742 | */ | |
2743 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2744 | struct snd_ctl_elem_info *uinfo) | |
2745 | { | |
4eaa9819 JS |
2746 | struct soc_mixer_control *mc = |
2747 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2748 | int platform_max; |
4eaa9819 | 2749 | int min = mc->min; |
e13ac2e9 | 2750 | |
d11bb4a9 PU |
2751 | if (!mc->platform_max) |
2752 | mc->platform_max = mc->max; | |
2753 | platform_max = mc->platform_max; | |
2754 | ||
e13ac2e9 MB |
2755 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2756 | uinfo->count = 2; | |
2757 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2758 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2759 | return 0; |
2760 | } | |
2761 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2762 | ||
2763 | /** | |
2764 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2765 | * @kcontrol: mixer control | |
ac11a2b3 | 2766 | * @ucontrol: control element information |
e13ac2e9 MB |
2767 | * |
2768 | * Callback to get the value of a signed mixer control. | |
2769 | * | |
2770 | * Returns 0 for success. | |
2771 | */ | |
2772 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2773 | struct snd_ctl_elem_value *ucontrol) | |
2774 | { | |
4eaa9819 JS |
2775 | struct soc_mixer_control *mc = |
2776 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2777 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2778 | unsigned int reg = mc->reg; |
4eaa9819 | 2779 | int min = mc->min; |
e13ac2e9 MB |
2780 | int val = snd_soc_read(codec, reg); |
2781 | ||
2782 | ucontrol->value.integer.value[0] = | |
2783 | ((signed char)(val & 0xff))-min; | |
2784 | ucontrol->value.integer.value[1] = | |
2785 | ((signed char)((val >> 8) & 0xff))-min; | |
2786 | return 0; | |
2787 | } | |
2788 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2789 | ||
2790 | /** | |
2791 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2792 | * @kcontrol: mixer control | |
ac11a2b3 | 2793 | * @ucontrol: control element information |
e13ac2e9 MB |
2794 | * |
2795 | * Callback to set the value of a signed mixer control. | |
2796 | * | |
2797 | * Returns 0 for success. | |
2798 | */ | |
2799 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2800 | struct snd_ctl_elem_value *ucontrol) | |
2801 | { | |
4eaa9819 JS |
2802 | struct soc_mixer_control *mc = |
2803 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2804 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2805 | unsigned int reg = mc->reg; |
4eaa9819 | 2806 | int min = mc->min; |
46f5822f | 2807 | unsigned int val; |
e13ac2e9 MB |
2808 | |
2809 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2810 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2811 | ||
6c508c62 | 2812 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2813 | } |
2814 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2815 | ||
637d3847 PU |
2816 | /** |
2817 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2818 | * | |
2819 | * @codec: where to look for the control | |
2820 | * @name: Name of the control | |
2821 | * @max: new maximum limit | |
2822 | * | |
2823 | * Return 0 for success, else error. | |
2824 | */ | |
2825 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2826 | const char *name, int max) | |
2827 | { | |
f0fba2ad | 2828 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2829 | struct snd_kcontrol *kctl; |
2830 | struct soc_mixer_control *mc; | |
2831 | int found = 0; | |
2832 | int ret = -EINVAL; | |
2833 | ||
2834 | /* Sanity check for name and max */ | |
2835 | if (unlikely(!name || max <= 0)) | |
2836 | return -EINVAL; | |
2837 | ||
2838 | list_for_each_entry(kctl, &card->controls, list) { | |
2839 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2840 | found = 1; | |
2841 | break; | |
2842 | } | |
2843 | } | |
2844 | if (found) { | |
2845 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2846 | if (max <= mc->max) { | |
d11bb4a9 | 2847 | mc->platform_max = max; |
637d3847 PU |
2848 | ret = 0; |
2849 | } | |
2850 | } | |
2851 | return ret; | |
2852 | } | |
2853 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2854 | ||
b6f4bb38 | 2855 | /** |
2856 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2857 | * mixer info callback | |
2858 | * @kcontrol: mixer control | |
2859 | * @uinfo: control element information | |
2860 | * | |
2861 | * Returns 0 for success. | |
2862 | */ | |
2863 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2864 | struct snd_ctl_elem_info *uinfo) | |
2865 | { | |
2866 | struct soc_mixer_control *mc = | |
2867 | (struct soc_mixer_control *)kcontrol->private_value; | |
2868 | int max = mc->max; | |
2869 | int min = mc->min; | |
2870 | ||
2871 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2872 | uinfo->count = 2; | |
2873 | uinfo->value.integer.min = 0; | |
2874 | uinfo->value.integer.max = max-min; | |
2875 | ||
2876 | return 0; | |
2877 | } | |
2878 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2879 | ||
2880 | /** | |
2881 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2882 | * mixer get callback | |
2883 | * @kcontrol: mixer control | |
2884 | * @uinfo: control element information | |
2885 | * | |
2886 | * Returns 0 for success. | |
2887 | */ | |
2888 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2889 | struct snd_ctl_elem_value *ucontrol) | |
2890 | { | |
2891 | struct soc_mixer_control *mc = | |
2892 | (struct soc_mixer_control *)kcontrol->private_value; | |
2893 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2894 | unsigned int mask = (1<<mc->shift)-1; | |
2895 | int min = mc->min; | |
2896 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2897 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2898 | ||
20630c7f SL |
2899 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2900 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2901 | return 0; |
2902 | } | |
2903 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2904 | ||
2905 | /** | |
2906 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2907 | * mixer put callback | |
2908 | * @kcontrol: mixer control | |
2909 | * @uinfo: control element information | |
2910 | * | |
2911 | * Returns 0 for success. | |
2912 | */ | |
2913 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2914 | struct snd_ctl_elem_value *ucontrol) | |
2915 | { | |
2916 | struct soc_mixer_control *mc = | |
2917 | (struct soc_mixer_control *)kcontrol->private_value; | |
2918 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2919 | unsigned int mask = (1<<mc->shift)-1; | |
2920 | int min = mc->min; | |
2921 | int ret; | |
2922 | unsigned int val, valr, oval, ovalr; | |
2923 | ||
2924 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2925 | val &= mask; | |
2926 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2927 | valr &= mask; | |
2928 | ||
2929 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2930 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2931 | ||
2932 | ret = 0; | |
2933 | if (oval != val) { | |
2934 | ret = snd_soc_write(codec, mc->reg, val); | |
2935 | if (ret < 0) | |
f1df5aec | 2936 | return ret; |
b6f4bb38 | 2937 | } |
2938 | if (ovalr != valr) { | |
2939 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2940 | if (ret < 0) | |
f1df5aec | 2941 | return ret; |
b6f4bb38 | 2942 | } |
2943 | ||
2944 | return 0; | |
2945 | } | |
2946 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2947 | ||
8c6529db LG |
2948 | /** |
2949 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2950 | * @dai: DAI | |
2951 | * @clk_id: DAI specific clock ID | |
2952 | * @freq: new clock frequency in Hz | |
2953 | * @dir: new clock direction - input/output. | |
2954 | * | |
2955 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2956 | */ | |
2957 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2958 | unsigned int freq, int dir) | |
2959 | { | |
f0fba2ad LG |
2960 | if (dai->driver && dai->driver->ops->set_sysclk) |
2961 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2962 | else |
2963 | return -EINVAL; | |
2964 | } | |
2965 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2966 | ||
2967 | /** | |
2968 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2969 | * @dai: DAI | |
ac11a2b3 | 2970 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2971 | * @div: new clock divisor. |
2972 | * | |
2973 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2974 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2975 | * and frame clocks as low as possible to save system power. | |
2976 | */ | |
2977 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2978 | int div_id, int div) | |
2979 | { | |
f0fba2ad LG |
2980 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2981 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2982 | else |
2983 | return -EINVAL; | |
2984 | } | |
2985 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2986 | ||
2987 | /** | |
2988 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2989 | * @dai: DAI | |
2990 | * @pll_id: DAI specific PLL ID | |
85488037 | 2991 | * @source: DAI specific source for the PLL |
8c6529db LG |
2992 | * @freq_in: PLL input clock frequency in Hz |
2993 | * @freq_out: requested PLL output clock frequency in Hz | |
2994 | * | |
2995 | * Configures and enables PLL to generate output clock based on input clock. | |
2996 | */ | |
85488037 MB |
2997 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2998 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2999 | { |
f0fba2ad LG |
3000 | if (dai->driver && dai->driver->ops->set_pll) |
3001 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3002 | freq_in, freq_out); |
8c6529db LG |
3003 | else |
3004 | return -EINVAL; | |
3005 | } | |
3006 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3007 | ||
3008 | /** | |
3009 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3010 | * @dai: DAI | |
8c6529db LG |
3011 | * @fmt: SND_SOC_DAIFMT_ format value. |
3012 | * | |
3013 | * Configures the DAI hardware format and clocking. | |
3014 | */ | |
3015 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3016 | { | |
f0fba2ad LG |
3017 | if (dai->driver && dai->driver->ops->set_fmt) |
3018 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3019 | else |
3020 | return -EINVAL; | |
3021 | } | |
3022 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3023 | ||
3024 | /** | |
3025 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3026 | * @dai: DAI | |
a5479e38 DR |
3027 | * @tx_mask: bitmask representing active TX slots. |
3028 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3029 | * @slots: Number of slots in use. |
a5479e38 | 3030 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3031 | * |
3032 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3033 | * specific. | |
3034 | */ | |
3035 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3036 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3037 | { |
f0fba2ad LG |
3038 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3039 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3040 | slots, slot_width); |
8c6529db LG |
3041 | else |
3042 | return -EINVAL; | |
3043 | } | |
3044 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3045 | ||
472df3cb BS |
3046 | /** |
3047 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3048 | * @dai: DAI | |
3049 | * @tx_num: how many TX channels | |
3050 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3051 | * 0~num-1 uses | |
3052 | * @rx_num: how many RX channels | |
3053 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3054 | * 0~num-1 uses | |
3055 | * | |
3056 | * configure the relationship between channel number and TDM slot number. | |
3057 | */ | |
3058 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3059 | unsigned int tx_num, unsigned int *tx_slot, | |
3060 | unsigned int rx_num, unsigned int *rx_slot) | |
3061 | { | |
f0fba2ad LG |
3062 | if (dai->driver && dai->driver->ops->set_channel_map) |
3063 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3064 | rx_num, rx_slot); |
3065 | else | |
3066 | return -EINVAL; | |
3067 | } | |
3068 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3069 | ||
8c6529db LG |
3070 | /** |
3071 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3072 | * @dai: DAI | |
3073 | * @tristate: tristate enable | |
3074 | * | |
3075 | * Tristates the DAI so that others can use it. | |
3076 | */ | |
3077 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3078 | { | |
f0fba2ad LG |
3079 | if (dai->driver && dai->driver->ops->set_tristate) |
3080 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3081 | else |
3082 | return -EINVAL; | |
3083 | } | |
3084 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3085 | ||
3086 | /** | |
3087 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3088 | * @dai: DAI | |
3089 | * @mute: mute enable | |
3090 | * | |
3091 | * Mutes the DAI DAC. | |
3092 | */ | |
3093 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3094 | { | |
f0fba2ad LG |
3095 | if (dai->driver && dai->driver->ops->digital_mute) |
3096 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3097 | else |
3098 | return -EINVAL; | |
3099 | } | |
3100 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3101 | ||
c5af3a2e MB |
3102 | /** |
3103 | * snd_soc_register_card - Register a card with the ASoC core | |
3104 | * | |
ac11a2b3 | 3105 | * @card: Card to register |
c5af3a2e MB |
3106 | * |
3107 | * Note that currently this is an internal only function: it will be | |
3108 | * exposed to machine drivers after further backporting of ASoC v2 | |
3109 | * registration APIs. | |
3110 | */ | |
3111 | static int snd_soc_register_card(struct snd_soc_card *card) | |
3112 | { | |
f0fba2ad LG |
3113 | int i; |
3114 | ||
c5af3a2e MB |
3115 | if (!card->name || !card->dev) |
3116 | return -EINVAL; | |
3117 | ||
2eea392d JN |
3118 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3119 | (card->num_links + card->num_aux_devs), | |
3120 | GFP_KERNEL); | |
f0fba2ad LG |
3121 | if (card->rtd == NULL) |
3122 | return -ENOMEM; | |
2eea392d | 3123 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3124 | |
3125 | for (i = 0; i < card->num_links; i++) | |
3126 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3127 | ||
c5af3a2e MB |
3128 | INIT_LIST_HEAD(&card->list); |
3129 | card->instantiated = 0; | |
f0fba2ad | 3130 | mutex_init(&card->mutex); |
c5af3a2e MB |
3131 | |
3132 | mutex_lock(&client_mutex); | |
3133 | list_add(&card->list, &card_list); | |
435c5e25 | 3134 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3135 | mutex_unlock(&client_mutex); |
3136 | ||
3137 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3138 | ||
3139 | return 0; | |
3140 | } | |
3141 | ||
3142 | /** | |
3143 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3144 | * | |
ac11a2b3 | 3145 | * @card: Card to unregister |
c5af3a2e MB |
3146 | * |
3147 | * Note that currently this is an internal only function: it will be | |
3148 | * exposed to machine drivers after further backporting of ASoC v2 | |
3149 | * registration APIs. | |
3150 | */ | |
3151 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
3152 | { | |
3153 | mutex_lock(&client_mutex); | |
3154 | list_del(&card->list); | |
3155 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3156 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3157 | ||
3158 | return 0; | |
3159 | } | |
3160 | ||
f0fba2ad LG |
3161 | /* |
3162 | * Simplify DAI link configuration by removing ".-1" from device names | |
3163 | * and sanitizing names. | |
3164 | */ | |
0b9a214a | 3165 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3166 | { |
3167 | char *found, name[NAME_SIZE]; | |
3168 | int id1, id2; | |
3169 | ||
3170 | if (dev_name(dev) == NULL) | |
3171 | return NULL; | |
3172 | ||
58818a77 | 3173 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3174 | |
3175 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3176 | found = strstr(name, dev->driver->name); | |
3177 | if (found) { | |
3178 | /* get ID */ | |
3179 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3180 | ||
3181 | /* discard ID from name if ID == -1 */ | |
3182 | if (*id == -1) | |
3183 | found[strlen(dev->driver->name)] = '\0'; | |
3184 | } | |
3185 | ||
3186 | } else { | |
3187 | /* I2C component devices are named "bus-addr" */ | |
3188 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3189 | char tmp[NAME_SIZE]; | |
3190 | ||
3191 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3192 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3193 | |
3194 | /* sanitize component name for DAI link creation */ | |
3195 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3196 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3197 | } else |
3198 | *id = 0; | |
3199 | } | |
3200 | ||
3201 | return kstrdup(name, GFP_KERNEL); | |
3202 | } | |
3203 | ||
3204 | /* | |
3205 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3206 | * any ".-1" and using the DAI name (instead of device name). | |
3207 | */ | |
3208 | static inline char *fmt_multiple_name(struct device *dev, | |
3209 | struct snd_soc_dai_driver *dai_drv) | |
3210 | { | |
3211 | if (dai_drv->name == NULL) { | |
3212 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3213 | dev_name(dev)); | |
3214 | return NULL; | |
3215 | } | |
3216 | ||
3217 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3218 | } | |
3219 | ||
9115171a MB |
3220 | /** |
3221 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3222 | * | |
ac11a2b3 | 3223 | * @dai: DAI to register |
9115171a | 3224 | */ |
f0fba2ad LG |
3225 | int snd_soc_register_dai(struct device *dev, |
3226 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3227 | { |
f0fba2ad LG |
3228 | struct snd_soc_dai *dai; |
3229 | ||
3230 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3231 | |
f0fba2ad LG |
3232 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3233 | if (dai == NULL) | |
3234 | return -ENOMEM; | |
9115171a | 3235 | |
f0fba2ad LG |
3236 | /* create DAI component name */ |
3237 | dai->name = fmt_single_name(dev, &dai->id); | |
3238 | if (dai->name == NULL) { | |
3239 | kfree(dai); | |
3240 | return -ENOMEM; | |
3241 | } | |
6335d055 | 3242 | |
f0fba2ad LG |
3243 | dai->dev = dev; |
3244 | dai->driver = dai_drv; | |
3245 | if (!dai->driver->ops) | |
3246 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3247 | |
3248 | mutex_lock(&client_mutex); | |
3249 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3250 | snd_soc_instantiate_cards(); |
9115171a MB |
3251 | mutex_unlock(&client_mutex); |
3252 | ||
3253 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3254 | ||
3255 | return 0; | |
3256 | } | |
3257 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3258 | ||
3259 | /** | |
3260 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3261 | * | |
ac11a2b3 | 3262 | * @dai: DAI to unregister |
9115171a | 3263 | */ |
f0fba2ad | 3264 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3265 | { |
f0fba2ad LG |
3266 | struct snd_soc_dai *dai; |
3267 | ||
3268 | list_for_each_entry(dai, &dai_list, list) { | |
3269 | if (dev == dai->dev) | |
3270 | goto found; | |
3271 | } | |
3272 | return; | |
3273 | ||
3274 | found: | |
9115171a MB |
3275 | mutex_lock(&client_mutex); |
3276 | list_del(&dai->list); | |
3277 | mutex_unlock(&client_mutex); | |
3278 | ||
3279 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3280 | kfree(dai->name); |
3281 | kfree(dai); | |
9115171a MB |
3282 | } |
3283 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3284 | ||
3285 | /** | |
3286 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3287 | * | |
ac11a2b3 MB |
3288 | * @dai: Array of DAIs to register |
3289 | * @count: Number of DAIs | |
9115171a | 3290 | */ |
f0fba2ad LG |
3291 | int snd_soc_register_dais(struct device *dev, |
3292 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3293 | { |
f0fba2ad LG |
3294 | struct snd_soc_dai *dai; |
3295 | int i, ret = 0; | |
3296 | ||
720ffa4c | 3297 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3298 | |
3299 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3300 | |
3301 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3302 | if (dai == NULL) { |
3303 | ret = -ENOMEM; | |
3304 | goto err; | |
3305 | } | |
f0fba2ad LG |
3306 | |
3307 | /* create DAI component name */ | |
3308 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3309 | if (dai->name == NULL) { | |
3310 | kfree(dai); | |
3311 | ret = -EINVAL; | |
9115171a | 3312 | goto err; |
f0fba2ad LG |
3313 | } |
3314 | ||
3315 | dai->dev = dev; | |
f0fba2ad | 3316 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3317 | if (dai->driver->id) |
3318 | dai->id = dai->driver->id; | |
3319 | else | |
3320 | dai->id = i; | |
f0fba2ad LG |
3321 | if (!dai->driver->ops) |
3322 | dai->driver->ops = &null_dai_ops; | |
3323 | ||
3324 | mutex_lock(&client_mutex); | |
3325 | list_add(&dai->list, &dai_list); | |
3326 | mutex_unlock(&client_mutex); | |
3327 | ||
3328 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3329 | } |
3330 | ||
1dcb4f38 | 3331 | mutex_lock(&client_mutex); |
f0fba2ad | 3332 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3333 | mutex_unlock(&client_mutex); |
9115171a MB |
3334 | return 0; |
3335 | ||
3336 | err: | |
3337 | for (i--; i >= 0; i--) | |
f0fba2ad | 3338 | snd_soc_unregister_dai(dev); |
9115171a MB |
3339 | |
3340 | return ret; | |
3341 | } | |
3342 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3343 | ||
3344 | /** | |
3345 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3346 | * | |
ac11a2b3 MB |
3347 | * @dai: Array of DAIs to unregister |
3348 | * @count: Number of DAIs | |
9115171a | 3349 | */ |
f0fba2ad | 3350 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3351 | { |
3352 | int i; | |
3353 | ||
3354 | for (i = 0; i < count; i++) | |
f0fba2ad | 3355 | snd_soc_unregister_dai(dev); |
9115171a MB |
3356 | } |
3357 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3358 | ||
12a48a8c MB |
3359 | /** |
3360 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3361 | * | |
ac11a2b3 | 3362 | * @platform: platform to register |
12a48a8c | 3363 | */ |
f0fba2ad LG |
3364 | int snd_soc_register_platform(struct device *dev, |
3365 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3366 | { |
f0fba2ad LG |
3367 | struct snd_soc_platform *platform; |
3368 | ||
3369 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3370 | ||
3371 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3372 | if (platform == NULL) | |
3373 | return -ENOMEM; | |
3374 | ||
3375 | /* create platform component name */ | |
3376 | platform->name = fmt_single_name(dev, &platform->id); | |
3377 | if (platform->name == NULL) { | |
3378 | kfree(platform); | |
3379 | return -ENOMEM; | |
3380 | } | |
12a48a8c | 3381 | |
f0fba2ad LG |
3382 | platform->dev = dev; |
3383 | platform->driver = platform_drv; | |
12a48a8c MB |
3384 | |
3385 | mutex_lock(&client_mutex); | |
3386 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3387 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3388 | mutex_unlock(&client_mutex); |
3389 | ||
3390 | pr_debug("Registered platform '%s'\n", platform->name); | |
3391 | ||
3392 | return 0; | |
3393 | } | |
3394 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3395 | ||
3396 | /** | |
3397 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3398 | * | |
ac11a2b3 | 3399 | * @platform: platform to unregister |
12a48a8c | 3400 | */ |
f0fba2ad | 3401 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3402 | { |
f0fba2ad LG |
3403 | struct snd_soc_platform *platform; |
3404 | ||
3405 | list_for_each_entry(platform, &platform_list, list) { | |
3406 | if (dev == platform->dev) | |
3407 | goto found; | |
3408 | } | |
3409 | return; | |
3410 | ||
3411 | found: | |
12a48a8c MB |
3412 | mutex_lock(&client_mutex); |
3413 | list_del(&platform->list); | |
3414 | mutex_unlock(&client_mutex); | |
3415 | ||
3416 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3417 | kfree(platform->name); |
3418 | kfree(platform); | |
12a48a8c MB |
3419 | } |
3420 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3421 | ||
151ab22c MB |
3422 | static u64 codec_format_map[] = { |
3423 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3424 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3425 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3426 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3427 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3428 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3429 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3430 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3431 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3432 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3433 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3434 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3435 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3436 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3437 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3438 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3439 | }; | |
3440 | ||
3441 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3442 | * the endianness of the data but we're using the CPU format | |
3443 | * definitions which do need to include endianness so we ensure that | |
3444 | * codec DAIs always have both big and little endian variants set. | |
3445 | */ | |
3446 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3447 | { | |
3448 | int i; | |
3449 | ||
3450 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3451 | if (stream->formats & codec_format_map[i]) | |
3452 | stream->formats |= codec_format_map[i]; | |
3453 | } | |
3454 | ||
0d0cf00a MB |
3455 | /** |
3456 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3457 | * | |
ac11a2b3 | 3458 | * @codec: codec to register |
0d0cf00a | 3459 | */ |
f0fba2ad | 3460 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3461 | const struct snd_soc_codec_driver *codec_drv, |
3462 | struct snd_soc_dai_driver *dai_drv, | |
3463 | int num_dai) | |
0d0cf00a | 3464 | { |
3335ddca | 3465 | size_t reg_size; |
f0fba2ad LG |
3466 | struct snd_soc_codec *codec; |
3467 | int ret, i; | |
151ab22c | 3468 | |
f0fba2ad LG |
3469 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3470 | ||
3471 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3472 | if (codec == NULL) | |
3473 | return -ENOMEM; | |
0d0cf00a | 3474 | |
f0fba2ad LG |
3475 | /* create CODEC component name */ |
3476 | codec->name = fmt_single_name(dev, &codec->id); | |
3477 | if (codec->name == NULL) { | |
3478 | kfree(codec); | |
3479 | return -ENOMEM; | |
3480 | } | |
3481 | ||
23bbce34 DP |
3482 | if (codec_drv->compress_type) |
3483 | codec->compress_type = codec_drv->compress_type; | |
3484 | else | |
3485 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3486 | ||
c3acec26 MB |
3487 | codec->write = codec_drv->write; |
3488 | codec->read = codec_drv->read; | |
ce6120cc LG |
3489 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3490 | codec->dapm.dev = dev; | |
3491 | codec->dapm.codec = codec; | |
7a30a3db DP |
3492 | codec->dev = dev; |
3493 | codec->driver = codec_drv; | |
3494 | codec->num_dai = num_dai; | |
3495 | mutex_init(&codec->mutex); | |
ce6120cc | 3496 | |
f0fba2ad LG |
3497 | /* allocate CODEC register cache */ |
3498 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca DP |
3499 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
3500 | /* it is necessary to make a copy of the default register cache | |
3501 | * because in the case of using a compression type that requires | |
3502 | * the default register cache to be marked as __devinitconst the | |
3503 | * kernel might have freed the array by the time we initialize | |
3504 | * the cache. | |
3505 | */ | |
3506 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3507 | reg_size, GFP_KERNEL); | |
3508 | if (!codec->reg_def_copy) { | |
3509 | ret = -ENOMEM; | |
fdf0f54d | 3510 | goto fail; |
f0fba2ad | 3511 | } |
151ab22c MB |
3512 | } |
3513 | ||
f0fba2ad LG |
3514 | for (i = 0; i < num_dai; i++) { |
3515 | fixup_codec_formats(&dai_drv[i].playback); | |
3516 | fixup_codec_formats(&dai_drv[i].capture); | |
3517 | } | |
3518 | ||
26b01ccd MB |
3519 | /* register any DAIs */ |
3520 | if (num_dai) { | |
3521 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3522 | if (ret < 0) | |
fdf0f54d | 3523 | goto fail; |
26b01ccd | 3524 | } |
f0fba2ad | 3525 | |
0d0cf00a MB |
3526 | mutex_lock(&client_mutex); |
3527 | list_add(&codec->list, &codec_list); | |
3528 | snd_soc_instantiate_cards(); | |
3529 | mutex_unlock(&client_mutex); | |
3530 | ||
3531 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3532 | return 0; |
f0fba2ad | 3533 | |
fdf0f54d | 3534 | fail: |
3335ddca DP |
3535 | kfree(codec->reg_def_copy); |
3536 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3537 | kfree(codec->name); |
3538 | kfree(codec); | |
3539 | return ret; | |
0d0cf00a MB |
3540 | } |
3541 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3542 | ||
3543 | /** | |
3544 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3545 | * | |
ac11a2b3 | 3546 | * @codec: codec to unregister |
0d0cf00a | 3547 | */ |
f0fba2ad | 3548 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3549 | { |
f0fba2ad LG |
3550 | struct snd_soc_codec *codec; |
3551 | int i; | |
3552 | ||
3553 | list_for_each_entry(codec, &codec_list, list) { | |
3554 | if (dev == codec->dev) | |
3555 | goto found; | |
3556 | } | |
3557 | return; | |
3558 | ||
3559 | found: | |
26b01ccd MB |
3560 | if (codec->num_dai) |
3561 | for (i = 0; i < codec->num_dai; i++) | |
3562 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3563 | |
0d0cf00a MB |
3564 | mutex_lock(&client_mutex); |
3565 | list_del(&codec->list); | |
3566 | mutex_unlock(&client_mutex); | |
3567 | ||
3568 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3569 | |
7a30a3db | 3570 | snd_soc_cache_exit(codec); |
3335ddca | 3571 | kfree(codec->reg_def_copy); |
1aafcd4d | 3572 | kfree(codec->name); |
f0fba2ad | 3573 | kfree(codec); |
0d0cf00a MB |
3574 | } |
3575 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3576 | ||
c9b3a40f | 3577 | static int __init snd_soc_init(void) |
db2a4165 | 3578 | { |
384c89e2 MB |
3579 | #ifdef CONFIG_DEBUG_FS |
3580 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3581 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3582 | printk(KERN_WARNING | |
3583 | "ASoC: Failed to create debugfs directory\n"); | |
3584 | debugfs_root = NULL; | |
3585 | } | |
c3c5a19a MB |
3586 | |
3587 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3588 | &codec_list_fops)) | |
3589 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3590 | ||
f3208780 MB |
3591 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3592 | &dai_list_fops)) | |
3593 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3594 | |
3595 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3596 | &platform_list_fops)) | |
3597 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3598 | #endif |
3599 | ||
db2a4165 FM |
3600 | return platform_driver_register(&soc_driver); |
3601 | } | |
4abe8e16 | 3602 | module_init(snd_soc_init); |
db2a4165 | 3603 | |
7d8c16a6 | 3604 | static void __exit snd_soc_exit(void) |
db2a4165 | 3605 | { |
384c89e2 MB |
3606 | #ifdef CONFIG_DEBUG_FS |
3607 | debugfs_remove_recursive(debugfs_root); | |
3608 | #endif | |
3ff3f64b | 3609 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3610 | } |
db2a4165 FM |
3611 | module_exit(snd_soc_exit); |
3612 | ||
3613 | /* Module information */ | |
d331124d | 3614 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3615 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3616 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3617 | MODULE_ALIAS("platform:soc-audio"); |