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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 FM |
35 | #include <sound/core.h> |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
39 | #include <sound/soc-dapm.h> | |
40 | #include <sound/initval.h> | |
41 | ||
f0fba2ad LG |
42 | #define NAME_SIZE 32 |
43 | ||
db2a4165 | 44 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
45 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
46 | ||
384c89e2 MB |
47 | #ifdef CONFIG_DEBUG_FS |
48 | static struct dentry *debugfs_root; | |
49 | #endif | |
50 | ||
c5af3a2e MB |
51 | static DEFINE_MUTEX(client_mutex); |
52 | static LIST_HEAD(card_list); | |
9115171a | 53 | static LIST_HEAD(dai_list); |
12a48a8c | 54 | static LIST_HEAD(platform_list); |
0d0cf00a | 55 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
56 | |
57 | static int snd_soc_register_card(struct snd_soc_card *card); | |
58 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 59 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
965ac42c LG |
70 | /* |
71 | * This function forces any delayed work to be queued and run. | |
72 | */ | |
73 | static int run_delayed_work(struct delayed_work *dwork) | |
74 | { | |
75 | int ret; | |
76 | ||
77 | /* cancel any work waiting to be queued. */ | |
78 | ret = cancel_delayed_work(dwork); | |
79 | ||
80 | /* if there was any work waiting then we run it now and | |
81 | * wait for it's completion */ | |
82 | if (ret) { | |
83 | schedule_delayed_work(dwork, 0); | |
84 | flush_scheduled_work(); | |
85 | } | |
86 | return ret; | |
87 | } | |
88 | ||
2624d5fa MB |
89 | /* codec register dump */ |
90 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
91 | { | |
5164d74d | 92 | int ret, i, step = 1, count = 0; |
2624d5fa | 93 | |
f0fba2ad | 94 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
95 | return 0; |
96 | ||
f0fba2ad LG |
97 | if (codec->driver->reg_cache_step) |
98 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
99 | |
100 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
101 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
102 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
103 | continue; |
104 | ||
105 | count += sprintf(buf + count, "%2x: ", i); | |
106 | if (count >= PAGE_SIZE - 1) | |
107 | break; | |
108 | ||
f0fba2ad LG |
109 | if (codec->driver->display_register) { |
110 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 111 | PAGE_SIZE - count, i); |
5164d74d MB |
112 | } else { |
113 | /* If the read fails it's almost certainly due to | |
114 | * the register being volatile and the device being | |
115 | * powered off. | |
116 | */ | |
f0fba2ad | 117 | ret = codec->driver->read(codec, i); |
5164d74d MB |
118 | if (ret >= 0) |
119 | count += snprintf(buf + count, | |
120 | PAGE_SIZE - count, | |
121 | "%4x", ret); | |
122 | else | |
123 | count += snprintf(buf + count, | |
124 | PAGE_SIZE - count, | |
125 | "<no data: %d>", ret); | |
126 | } | |
2624d5fa MB |
127 | |
128 | if (count >= PAGE_SIZE - 1) | |
129 | break; | |
130 | ||
131 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
132 | if (count >= PAGE_SIZE - 1) | |
133 | break; | |
134 | } | |
135 | ||
136 | /* Truncate count; min() would cause a warning */ | |
137 | if (count >= PAGE_SIZE) | |
138 | count = PAGE_SIZE - 1; | |
139 | ||
140 | return count; | |
141 | } | |
142 | static ssize_t codec_reg_show(struct device *dev, | |
143 | struct device_attribute *attr, char *buf) | |
144 | { | |
f0fba2ad LG |
145 | struct snd_soc_pcm_runtime *rtd = |
146 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
147 | ||
148 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
149 | } |
150 | ||
151 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
152 | ||
dbe21408 MB |
153 | static ssize_t pmdown_time_show(struct device *dev, |
154 | struct device_attribute *attr, char *buf) | |
155 | { | |
f0fba2ad LG |
156 | struct snd_soc_pcm_runtime *rtd = |
157 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 158 | |
f0fba2ad | 159 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
160 | } |
161 | ||
162 | static ssize_t pmdown_time_set(struct device *dev, | |
163 | struct device_attribute *attr, | |
164 | const char *buf, size_t count) | |
165 | { | |
f0fba2ad LG |
166 | struct snd_soc_pcm_runtime *rtd = |
167 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 168 | int ret; |
dbe21408 | 169 | |
c593b520 MB |
170 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
171 | if (ret) | |
172 | return ret; | |
dbe21408 MB |
173 | |
174 | return count; | |
175 | } | |
176 | ||
177 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
178 | ||
2624d5fa MB |
179 | #ifdef CONFIG_DEBUG_FS |
180 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
181 | { | |
182 | file->private_data = inode->i_private; | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
187 | size_t count, loff_t *ppos) | |
188 | { | |
189 | ssize_t ret; | |
190 | struct snd_soc_codec *codec = file->private_data; | |
191 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
192 | if (!buf) | |
193 | return -ENOMEM; | |
194 | ret = soc_codec_reg_show(codec, buf); | |
195 | if (ret >= 0) | |
196 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
197 | kfree(buf); | |
198 | return ret; | |
199 | } | |
200 | ||
201 | static ssize_t codec_reg_write_file(struct file *file, | |
202 | const char __user *user_buf, size_t count, loff_t *ppos) | |
203 | { | |
204 | char buf[32]; | |
205 | int buf_size; | |
206 | char *start = buf; | |
207 | unsigned long reg, value; | |
208 | int step = 1; | |
209 | struct snd_soc_codec *codec = file->private_data; | |
210 | ||
211 | buf_size = min(count, (sizeof(buf)-1)); | |
212 | if (copy_from_user(buf, user_buf, buf_size)) | |
213 | return -EFAULT; | |
214 | buf[buf_size] = 0; | |
215 | ||
f0fba2ad LG |
216 | if (codec->driver->reg_cache_step) |
217 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
218 | |
219 | while (*start == ' ') | |
220 | start++; | |
221 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 222 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
223 | return -EINVAL; |
224 | while (*start == ' ') | |
225 | start++; | |
226 | if (strict_strtoul(start, 16, &value)) | |
227 | return -EINVAL; | |
f0fba2ad | 228 | codec->driver->write(codec, reg, value); |
2624d5fa MB |
229 | return buf_size; |
230 | } | |
231 | ||
232 | static const struct file_operations codec_reg_fops = { | |
233 | .open = codec_reg_open_file, | |
234 | .read = codec_reg_read_file, | |
235 | .write = codec_reg_write_file, | |
236 | }; | |
237 | ||
238 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
239 | { | |
6ba6c9c3 | 240 | codec->debugfs_codec_root = debugfs_create_dir(codec->name , |
2624d5fa MB |
241 | debugfs_root); |
242 | if (!codec->debugfs_codec_root) { | |
243 | printk(KERN_WARNING | |
244 | "ASoC: Failed to create codec debugfs directory\n"); | |
245 | return; | |
246 | } | |
247 | ||
248 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
249 | codec->debugfs_codec_root, | |
250 | codec, &codec_reg_fops); | |
251 | if (!codec->debugfs_reg) | |
252 | printk(KERN_WARNING | |
253 | "ASoC: Failed to create codec register debugfs file\n"); | |
254 | ||
708fafb3 | 255 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, |
2624d5fa MB |
256 | codec->debugfs_codec_root, |
257 | &codec->pop_time); | |
258 | if (!codec->debugfs_pop_time) | |
259 | printk(KERN_WARNING | |
260 | "Failed to create pop time debugfs file\n"); | |
261 | ||
262 | codec->debugfs_dapm = debugfs_create_dir("dapm", | |
263 | codec->debugfs_codec_root); | |
264 | if (!codec->debugfs_dapm) | |
265 | printk(KERN_WARNING | |
266 | "Failed to create DAPM debugfs directory\n"); | |
267 | ||
268 | snd_soc_dapm_debugfs_init(codec); | |
269 | } | |
270 | ||
271 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
272 | { | |
273 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
274 | } | |
275 | ||
c3c5a19a MB |
276 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
277 | size_t count, loff_t *ppos) | |
278 | { | |
279 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 280 | ssize_t len, ret = 0; |
c3c5a19a MB |
281 | struct snd_soc_codec *codec; |
282 | ||
283 | if (!buf) | |
284 | return -ENOMEM; | |
285 | ||
2b194f9d MB |
286 | list_for_each_entry(codec, &codec_list, list) { |
287 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
288 | codec->name); | |
289 | if (len >= 0) | |
290 | ret += len; | |
291 | if (ret > PAGE_SIZE) { | |
292 | ret = PAGE_SIZE; | |
293 | break; | |
294 | } | |
295 | } | |
c3c5a19a MB |
296 | |
297 | if (ret >= 0) | |
298 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
299 | ||
300 | kfree(buf); | |
301 | ||
302 | return ret; | |
303 | } | |
304 | ||
305 | static const struct file_operations codec_list_fops = { | |
306 | .read = codec_list_read_file, | |
307 | .llseek = default_llseek,/* read accesses f_pos */ | |
308 | }; | |
309 | ||
f3208780 MB |
310 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
311 | size_t count, loff_t *ppos) | |
312 | { | |
313 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 314 | ssize_t len, ret = 0; |
f3208780 MB |
315 | struct snd_soc_dai *dai; |
316 | ||
317 | if (!buf) | |
318 | return -ENOMEM; | |
319 | ||
2b194f9d MB |
320 | list_for_each_entry(dai, &dai_list, list) { |
321 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
322 | if (len >= 0) | |
323 | ret += len; | |
324 | if (ret > PAGE_SIZE) { | |
325 | ret = PAGE_SIZE; | |
326 | break; | |
327 | } | |
328 | } | |
f3208780 | 329 | |
2b194f9d | 330 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
331 | |
332 | kfree(buf); | |
333 | ||
334 | return ret; | |
335 | } | |
336 | ||
337 | static const struct file_operations dai_list_fops = { | |
338 | .read = dai_list_read_file, | |
339 | .llseek = default_llseek,/* read accesses f_pos */ | |
340 | }; | |
341 | ||
19c7ac27 MB |
342 | static ssize_t platform_list_read_file(struct file *file, |
343 | char __user *user_buf, | |
344 | size_t count, loff_t *ppos) | |
345 | { | |
346 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 347 | ssize_t len, ret = 0; |
19c7ac27 MB |
348 | struct snd_soc_platform *platform; |
349 | ||
350 | if (!buf) | |
351 | return -ENOMEM; | |
352 | ||
2b194f9d MB |
353 | list_for_each_entry(platform, &platform_list, list) { |
354 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
355 | platform->name); | |
356 | if (len >= 0) | |
357 | ret += len; | |
358 | if (ret > PAGE_SIZE) { | |
359 | ret = PAGE_SIZE; | |
360 | break; | |
361 | } | |
362 | } | |
19c7ac27 | 363 | |
2b194f9d | 364 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
365 | |
366 | kfree(buf); | |
367 | ||
368 | return ret; | |
369 | } | |
370 | ||
371 | static const struct file_operations platform_list_fops = { | |
372 | .read = platform_list_read_file, | |
373 | .llseek = default_llseek,/* read accesses f_pos */ | |
374 | }; | |
375 | ||
2624d5fa MB |
376 | #else |
377 | ||
378 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
379 | { | |
380 | } | |
381 | ||
382 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
383 | { | |
384 | } | |
385 | #endif | |
386 | ||
db2a4165 FM |
387 | #ifdef CONFIG_SND_SOC_AC97_BUS |
388 | /* unregister ac97 codec */ | |
389 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
390 | { | |
391 | if (codec->ac97->dev.bus) | |
392 | device_unregister(&codec->ac97->dev); | |
393 | return 0; | |
394 | } | |
395 | ||
396 | /* stop no dev release warning */ | |
397 | static void soc_ac97_device_release(struct device *dev){} | |
398 | ||
399 | /* register ac97 codec to bus */ | |
400 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
401 | { | |
402 | int err; | |
403 | ||
404 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 405 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
406 | codec->ac97->dev.release = soc_ac97_device_release; |
407 | ||
bb072bf0 | 408 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 409 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
410 | err = device_register(&codec->ac97->dev); |
411 | if (err < 0) { | |
412 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
413 | codec->ac97->dev.bus = NULL; | |
414 | return err; | |
415 | } | |
416 | return 0; | |
417 | } | |
418 | #endif | |
419 | ||
06f409d7 MB |
420 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
421 | { | |
422 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
423 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
424 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
425 | int ret; |
426 | ||
f0fba2ad LG |
427 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
428 | rtd->dai_link->symmetric_rates) { | |
429 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
430 | rtd->rate); | |
06f409d7 MB |
431 | |
432 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
433 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
434 | rtd->rate, |
435 | rtd->rate); | |
06f409d7 | 436 | if (ret < 0) { |
f0fba2ad | 437 | dev_err(&rtd->dev, |
06f409d7 MB |
438 | "Unable to apply rate symmetry constraint: %d\n", ret); |
439 | return ret; | |
440 | } | |
441 | } | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
db2a4165 FM |
446 | /* |
447 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
448 | * then initialized and any private data can be allocated. This also calls | |
449 | * startup for the cpu DAI, platform, machine and codec DAI. | |
450 | */ | |
451 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
452 | { | |
453 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 454 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
455 | struct snd_soc_platform *platform = rtd->platform; |
456 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
457 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
458 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
459 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
460 | int ret = 0; |
461 | ||
462 | mutex_lock(&pcm_mutex); | |
463 | ||
464 | /* startup the audio subsystem */ | |
f0fba2ad LG |
465 | if (cpu_dai->driver->ops->startup) { |
466 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
467 | if (ret < 0) { |
468 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 469 | cpu_dai->name); |
db2a4165 FM |
470 | goto out; |
471 | } | |
472 | } | |
473 | ||
f0fba2ad LG |
474 | if (platform->driver->ops->open) { |
475 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
476 | if (ret < 0) { |
477 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
478 | goto platform_err; | |
479 | } | |
480 | } | |
481 | ||
f0fba2ad LG |
482 | if (codec_dai->driver->ops->startup) { |
483 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 484 | if (ret < 0) { |
cb666e5b LG |
485 | printk(KERN_ERR "asoc: can't open codec %s\n", |
486 | codec_dai->name); | |
487 | goto codec_dai_err; | |
db2a4165 FM |
488 | } |
489 | } | |
490 | ||
f0fba2ad LG |
491 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
492 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 493 | if (ret < 0) { |
f0fba2ad | 494 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 495 | goto machine_err; |
db2a4165 FM |
496 | } |
497 | } | |
498 | ||
db2a4165 FM |
499 | /* Check that the codec and cpu DAI's are compatible */ |
500 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
501 | runtime->hw.rate_min = | |
f0fba2ad LG |
502 | max(codec_dai_drv->playback.rate_min, |
503 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 504 | runtime->hw.rate_max = |
f0fba2ad LG |
505 | min(codec_dai_drv->playback.rate_max, |
506 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 507 | runtime->hw.channels_min = |
f0fba2ad LG |
508 | max(codec_dai_drv->playback.channels_min, |
509 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 510 | runtime->hw.channels_max = |
f0fba2ad LG |
511 | min(codec_dai_drv->playback.channels_max, |
512 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 513 | runtime->hw.formats = |
f0fba2ad | 514 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 515 | runtime->hw.rates = |
f0fba2ad LG |
516 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
517 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 518 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
519 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
520 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 521 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 522 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
523 | } else { |
524 | runtime->hw.rate_min = | |
f0fba2ad LG |
525 | max(codec_dai_drv->capture.rate_min, |
526 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 527 | runtime->hw.rate_max = |
f0fba2ad LG |
528 | min(codec_dai_drv->capture.rate_max, |
529 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 530 | runtime->hw.channels_min = |
f0fba2ad LG |
531 | max(codec_dai_drv->capture.channels_min, |
532 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 533 | runtime->hw.channels_max = |
f0fba2ad LG |
534 | min(codec_dai_drv->capture.channels_max, |
535 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 536 | runtime->hw.formats = |
f0fba2ad | 537 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 538 | runtime->hw.rates = |
f0fba2ad LG |
539 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
540 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 541 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
542 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
543 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 544 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 545 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
546 | } |
547 | ||
548 | snd_pcm_limit_hw_rates(runtime); | |
549 | if (!runtime->hw.rates) { | |
550 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 551 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 552 | goto config_err; |
db2a4165 FM |
553 | } |
554 | if (!runtime->hw.formats) { | |
555 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 556 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 557 | goto config_err; |
db2a4165 FM |
558 | } |
559 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
560 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 561 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 562 | goto config_err; |
db2a4165 FM |
563 | } |
564 | ||
06f409d7 MB |
565 | /* Symmetry only applies if we've already got an active stream. */ |
566 | if (cpu_dai->active || codec_dai->active) { | |
567 | ret = soc_pcm_apply_symmetry(substream); | |
568 | if (ret != 0) | |
bb1c0478 | 569 | goto config_err; |
06f409d7 MB |
570 | } |
571 | ||
f0fba2ad LG |
572 | pr_debug("asoc: %s <-> %s info:\n", |
573 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
574 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
575 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
576 | runtime->hw.channels_max); | |
577 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
578 | runtime->hw.rate_max); | |
db2a4165 | 579 | |
14dc5734 | 580 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
581 | cpu_dai->playback_active++; |
582 | codec_dai->playback_active++; | |
14dc5734 | 583 | } else { |
f0fba2ad LG |
584 | cpu_dai->capture_active++; |
585 | codec_dai->capture_active++; | |
14dc5734 JB |
586 | } |
587 | cpu_dai->active++; | |
588 | codec_dai->active++; | |
f0fba2ad | 589 | rtd->codec->active++; |
db2a4165 FM |
590 | mutex_unlock(&pcm_mutex); |
591 | return 0; | |
592 | ||
bb1c0478 | 593 | config_err: |
f0fba2ad LG |
594 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
595 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 596 | |
bb1c0478 | 597 | machine_err: |
f0fba2ad LG |
598 | if (codec_dai->driver->ops->shutdown) |
599 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 600 | |
cb666e5b | 601 | codec_dai_err: |
f0fba2ad LG |
602 | if (platform->driver->ops->close) |
603 | platform->driver->ops->close(substream); | |
db2a4165 FM |
604 | |
605 | platform_err: | |
f0fba2ad LG |
606 | if (cpu_dai->driver->ops->shutdown) |
607 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
608 | out: |
609 | mutex_unlock(&pcm_mutex); | |
610 | return ret; | |
611 | } | |
612 | ||
613 | /* | |
3a4fa0a2 | 614 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
615 | * This is to ensure there are no pops or clicks in between any music tracks |
616 | * due to DAPM power cycling. | |
617 | */ | |
4484bb2e | 618 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 619 | { |
f0fba2ad LG |
620 | struct snd_soc_pcm_runtime *rtd = |
621 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
622 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
623 | |
624 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
625 | |
626 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
627 | codec_dai->driver->playback.stream_name, | |
628 | codec_dai->playback_active ? "active" : "inactive", | |
629 | codec_dai->pop_wait ? "yes" : "no"); | |
630 | ||
631 | /* are we waiting on this codec DAI stream */ | |
632 | if (codec_dai->pop_wait == 1) { | |
633 | codec_dai->pop_wait = 0; | |
634 | snd_soc_dapm_stream_event(rtd, | |
635 | codec_dai->driver->playback.stream_name, | |
636 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 637 | } |
f0fba2ad | 638 | |
db2a4165 FM |
639 | mutex_unlock(&pcm_mutex); |
640 | } | |
641 | ||
642 | /* | |
643 | * Called by ALSA when a PCM substream is closed. Private data can be | |
644 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
645 | * shutdown. | |
646 | */ | |
647 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
648 | { | |
649 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
650 | struct snd_soc_platform *platform = rtd->platform; |
651 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
652 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
653 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
654 | |
655 | mutex_lock(&pcm_mutex); | |
656 | ||
14dc5734 | 657 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
658 | cpu_dai->playback_active--; |
659 | codec_dai->playback_active--; | |
14dc5734 | 660 | } else { |
f0fba2ad LG |
661 | cpu_dai->capture_active--; |
662 | codec_dai->capture_active--; | |
db2a4165 | 663 | } |
14dc5734 JB |
664 | |
665 | cpu_dai->active--; | |
666 | codec_dai->active--; | |
db2a4165 FM |
667 | codec->active--; |
668 | ||
6010b2da MB |
669 | /* Muting the DAC suppresses artifacts caused during digital |
670 | * shutdown, for example from stopping clocks. | |
671 | */ | |
672 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
673 | snd_soc_dai_digital_mute(codec_dai, 1); | |
674 | ||
f0fba2ad LG |
675 | if (cpu_dai->driver->ops->shutdown) |
676 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 677 | |
f0fba2ad LG |
678 | if (codec_dai->driver->ops->shutdown) |
679 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 680 | |
f0fba2ad LG |
681 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
682 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 683 | |
f0fba2ad LG |
684 | if (platform->driver->ops->close) |
685 | platform->driver->ops->close(substream); | |
686 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
687 | |
688 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
689 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 690 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
691 | schedule_delayed_work(&rtd->delayed_work, |
692 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
693 | } else { |
694 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
695 | snd_soc_dapm_stream_event(rtd, |
696 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 697 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
698 | } |
699 | ||
700 | mutex_unlock(&pcm_mutex); | |
701 | return 0; | |
702 | } | |
703 | ||
704 | /* | |
705 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
706 | * rate, etc. This function is non atomic and can be called multiple times, | |
707 | * it can refer to the runtime info. | |
708 | */ | |
709 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
710 | { | |
711 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
712 | struct snd_soc_platform *platform = rtd->platform; |
713 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
714 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
715 | int ret = 0; |
716 | ||
717 | mutex_lock(&pcm_mutex); | |
cb666e5b | 718 | |
f0fba2ad LG |
719 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
720 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
721 | if (ret < 0) { |
722 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
723 | goto out; | |
724 | } | |
725 | } | |
726 | ||
f0fba2ad LG |
727 | if (platform->driver->ops->prepare) { |
728 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
729 | if (ret < 0) { |
730 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 731 | goto out; |
a71a468a | 732 | } |
db2a4165 FM |
733 | } |
734 | ||
f0fba2ad LG |
735 | if (codec_dai->driver->ops->prepare) { |
736 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
737 | if (ret < 0) { |
738 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 739 | goto out; |
a71a468a | 740 | } |
db2a4165 FM |
741 | } |
742 | ||
f0fba2ad LG |
743 | if (cpu_dai->driver->ops->prepare) { |
744 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
745 | if (ret < 0) { |
746 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
747 | goto out; | |
748 | } | |
749 | } | |
db2a4165 | 750 | |
d45f6219 MB |
751 | /* cancel any delayed stream shutdown that is pending */ |
752 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
753 | codec_dai->pop_wait) { | |
754 | codec_dai->pop_wait = 0; | |
f0fba2ad | 755 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 756 | } |
db2a4165 | 757 | |
452c5eaa | 758 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
759 | snd_soc_dapm_stream_event(rtd, |
760 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
761 | SND_SOC_DAPM_STREAM_START); |
762 | else | |
f0fba2ad LG |
763 | snd_soc_dapm_stream_event(rtd, |
764 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 765 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 766 | |
452c5eaa | 767 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
768 | |
769 | out: | |
770 | mutex_unlock(&pcm_mutex); | |
771 | return ret; | |
772 | } | |
773 | ||
774 | /* | |
775 | * Called by ALSA when the hardware params are set by application. This | |
776 | * function can also be called multiple times and can allocate buffers | |
777 | * (using snd_pcm_lib_* ). It's non-atomic. | |
778 | */ | |
779 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
780 | struct snd_pcm_hw_params *params) | |
781 | { | |
782 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
783 | struct snd_soc_platform *platform = rtd->platform; |
784 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
785 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
786 | int ret = 0; |
787 | ||
788 | mutex_lock(&pcm_mutex); | |
789 | ||
f0fba2ad LG |
790 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
791 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
792 | if (ret < 0) { |
793 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 794 | goto out; |
cb666e5b | 795 | } |
db2a4165 FM |
796 | } |
797 | ||
f0fba2ad LG |
798 | if (codec_dai->driver->ops->hw_params) { |
799 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
800 | if (ret < 0) { |
801 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
802 | codec_dai->name); |
803 | goto codec_err; | |
db2a4165 FM |
804 | } |
805 | } | |
806 | ||
f0fba2ad LG |
807 | if (cpu_dai->driver->ops->hw_params) { |
808 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 809 | if (ret < 0) { |
3ff3f64b | 810 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 811 | cpu_dai->name); |
db2a4165 FM |
812 | goto interface_err; |
813 | } | |
814 | } | |
815 | ||
f0fba2ad LG |
816 | if (platform->driver->ops->hw_params) { |
817 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 818 | if (ret < 0) { |
3ff3f64b | 819 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
820 | platform->name); |
821 | goto platform_err; | |
822 | } | |
823 | } | |
824 | ||
f0fba2ad | 825 | rtd->rate = params_rate(params); |
06f409d7 | 826 | |
db2a4165 FM |
827 | out: |
828 | mutex_unlock(&pcm_mutex); | |
829 | return ret; | |
830 | ||
db2a4165 | 831 | platform_err: |
f0fba2ad LG |
832 | if (cpu_dai->driver->ops->hw_free) |
833 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
834 | |
835 | interface_err: | |
f0fba2ad LG |
836 | if (codec_dai->driver->ops->hw_free) |
837 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
838 | |
839 | codec_err: | |
f0fba2ad LG |
840 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
841 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
842 | |
843 | mutex_unlock(&pcm_mutex); | |
844 | return ret; | |
845 | } | |
846 | ||
847 | /* | |
848 | * Free's resources allocated by hw_params, can be called multiple times | |
849 | */ | |
850 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
851 | { | |
852 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
853 | struct snd_soc_platform *platform = rtd->platform; |
854 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
855 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
856 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
857 | |
858 | mutex_lock(&pcm_mutex); | |
859 | ||
860 | /* apply codec digital mute */ | |
8c6529db LG |
861 | if (!codec->active) |
862 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
863 | |
864 | /* free any machine hw params */ | |
f0fba2ad LG |
865 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
866 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
867 | |
868 | /* free any DMA resources */ | |
f0fba2ad LG |
869 | if (platform->driver->ops->hw_free) |
870 | platform->driver->ops->hw_free(substream); | |
db2a4165 FM |
871 | |
872 | /* now free hw params for the DAI's */ | |
f0fba2ad LG |
873 | if (codec_dai->driver->ops->hw_free) |
874 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 875 | |
f0fba2ad LG |
876 | if (cpu_dai->driver->ops->hw_free) |
877 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
878 | |
879 | mutex_unlock(&pcm_mutex); | |
880 | return 0; | |
881 | } | |
882 | ||
883 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
884 | { | |
885 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
886 | struct snd_soc_platform *platform = rtd->platform; |
887 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
888 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
889 | int ret; |
890 | ||
f0fba2ad LG |
891 | if (codec_dai->driver->ops->trigger) { |
892 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
893 | if (ret < 0) |
894 | return ret; | |
895 | } | |
896 | ||
f0fba2ad LG |
897 | if (platform->driver->ops->trigger) { |
898 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
899 | if (ret < 0) |
900 | return ret; | |
901 | } | |
902 | ||
f0fba2ad LG |
903 | if (cpu_dai->driver->ops->trigger) { |
904 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
905 | if (ret < 0) |
906 | return ret; | |
907 | } | |
908 | return 0; | |
909 | } | |
910 | ||
377b6f62 PU |
911 | /* |
912 | * soc level wrapper for pointer callback | |
258020d0 PU |
913 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
914 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
915 | */ |
916 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
917 | { | |
918 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
919 | struct snd_soc_platform *platform = rtd->platform; |
920 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
921 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 922 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 923 | snd_pcm_uframes_t offset = 0; |
258020d0 | 924 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 925 | |
f0fba2ad LG |
926 | if (platform->driver->ops->pointer) |
927 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 928 | |
f0fba2ad LG |
929 | if (cpu_dai->driver->ops->delay) |
930 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 931 | |
f0fba2ad LG |
932 | if (codec_dai->driver->ops->delay) |
933 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 934 | |
f0fba2ad LG |
935 | if (platform->driver->delay) |
936 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
937 | |
938 | runtime->delay = delay; | |
939 | ||
377b6f62 PU |
940 | return offset; |
941 | } | |
942 | ||
db2a4165 FM |
943 | /* ASoC PCM operations */ |
944 | static struct snd_pcm_ops soc_pcm_ops = { | |
945 | .open = soc_pcm_open, | |
946 | .close = soc_codec_close, | |
947 | .hw_params = soc_pcm_hw_params, | |
948 | .hw_free = soc_pcm_hw_free, | |
949 | .prepare = soc_pcm_prepare, | |
950 | .trigger = soc_pcm_trigger, | |
377b6f62 | 951 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
952 | }; |
953 | ||
954 | #ifdef CONFIG_PM | |
955 | /* powers down audio subsystem for suspend */ | |
416356fc | 956 | static int soc_suspend(struct device *dev) |
db2a4165 | 957 | { |
416356fc | 958 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 959 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 FM |
960 | int i; |
961 | ||
e3509ff0 DM |
962 | /* If the initialization of this soc device failed, there is no codec |
963 | * associated with it. Just bail out in this case. | |
964 | */ | |
f0fba2ad | 965 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
966 | return 0; |
967 | ||
6ed25978 AG |
968 | /* Due to the resume being scheduled into a workqueue we could |
969 | * suspend before that's finished - wait for it to complete. | |
970 | */ | |
f0fba2ad LG |
971 | snd_power_lock(card->snd_card); |
972 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
973 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
974 | |
975 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 976 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 977 | |
db2a4165 | 978 | /* mute any active DAC's */ |
f0fba2ad LG |
979 | for (i = 0; i < card->num_rtd; i++) { |
980 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
981 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 982 | |
f0fba2ad | 983 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
984 | continue; |
985 | ||
f0fba2ad LG |
986 | if (drv->ops->digital_mute && dai->playback_active) |
987 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
988 | } |
989 | ||
4ccab3e7 | 990 | /* suspend all pcms */ |
f0fba2ad LG |
991 | for (i = 0; i < card->num_rtd; i++) { |
992 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
993 | continue; |
994 | ||
f0fba2ad | 995 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 996 | } |
4ccab3e7 | 997 | |
87506549 | 998 | if (card->suspend_pre) |
416356fc | 999 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 1000 | |
f0fba2ad LG |
1001 | for (i = 0; i < card->num_rtd; i++) { |
1002 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1003 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1004 | |
f0fba2ad | 1005 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1006 | continue; |
1007 | ||
f0fba2ad LG |
1008 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1009 | cpu_dai->driver->suspend(cpu_dai); | |
1010 | if (platform->driver->suspend && !platform->suspended) { | |
1011 | platform->driver->suspend(cpu_dai); | |
1012 | platform->suspended = 1; | |
1013 | } | |
db2a4165 FM |
1014 | } |
1015 | ||
1016 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
1017 | for (i = 0; i < card->num_rtd; i++) { |
1018 | run_delayed_work(&card->rtd[i].delayed_work); | |
1019 | card->rtd[i].codec->suspend_bias_level = card->rtd[i].codec->bias_level; | |
1020 | } | |
db2a4165 | 1021 | |
f0fba2ad LG |
1022 | for (i = 0; i < card->num_rtd; i++) { |
1023 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1024 | |
f0fba2ad | 1025 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1026 | continue; |
1027 | ||
f0fba2ad LG |
1028 | if (driver->playback.stream_name != NULL) |
1029 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1030 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1031 | |
1032 | if (driver->capture.stream_name != NULL) | |
1033 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1034 | SND_SOC_DAPM_STREAM_SUSPEND); |
1035 | } | |
1036 | ||
f0fba2ad LG |
1037 | /* suspend all CODECs */ |
1038 | for (i = 0; i < card->num_rtd; i++) { | |
1039 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1040 | /* If there are paths active then the CODEC will be held with | |
1041 | * bias _ON and should not be suspended. */ | |
1042 | if (!codec->suspended && codec->driver->suspend) { | |
1043 | switch (codec->bias_level) { | |
1044 | case SND_SOC_BIAS_STANDBY: | |
1045 | case SND_SOC_BIAS_OFF: | |
1046 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1047 | codec->suspended = 1; | |
1048 | break; | |
1049 | default: | |
1050 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1051 | break; | |
1052 | } | |
1547aba9 MB |
1053 | } |
1054 | } | |
db2a4165 | 1055 | |
f0fba2ad LG |
1056 | for (i = 0; i < card->num_rtd; i++) { |
1057 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1058 | |
f0fba2ad | 1059 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1060 | continue; |
1061 | ||
f0fba2ad LG |
1062 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1063 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1064 | } |
1065 | ||
87506549 | 1066 | if (card->suspend_post) |
416356fc | 1067 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1068 | |
1069 | return 0; | |
1070 | } | |
1071 | ||
6ed25978 AG |
1072 | /* deferred resume work, so resume can complete before we finished |
1073 | * setting our codec back up, which can be very slow on I2C | |
1074 | */ | |
1075 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1076 | { |
f0fba2ad LG |
1077 | struct snd_soc_card *card = |
1078 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1079 | struct platform_device *pdev = to_platform_device(card->dev); | |
db2a4165 FM |
1080 | int i; |
1081 | ||
6ed25978 AG |
1082 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1083 | * so userspace apps are blocked from touching us | |
1084 | */ | |
1085 | ||
f0fba2ad | 1086 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1087 | |
9949788b | 1088 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1089 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1090 | |
87506549 MB |
1091 | if (card->resume_pre) |
1092 | card->resume_pre(pdev); | |
db2a4165 | 1093 | |
f0fba2ad LG |
1094 | /* resume AC97 DAIs */ |
1095 | for (i = 0; i < card->num_rtd; i++) { | |
1096 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1097 | |
f0fba2ad | 1098 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1099 | continue; |
1100 | ||
f0fba2ad LG |
1101 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1102 | cpu_dai->driver->resume(cpu_dai); | |
1103 | } | |
1104 | ||
1105 | for (i = 0; i < card->num_rtd; i++) { | |
1106 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1107 | /* If the CODEC was idle over suspend then it will have been | |
1108 | * left with bias OFF or STANDBY and suspended so we must now | |
1109 | * resume. Otherwise the suspend was suppressed. | |
1110 | */ | |
1111 | if (codec->driver->resume && codec->suspended) { | |
1112 | switch (codec->bias_level) { | |
1113 | case SND_SOC_BIAS_STANDBY: | |
1114 | case SND_SOC_BIAS_OFF: | |
1115 | codec->driver->resume(codec); | |
1116 | codec->suspended = 0; | |
1117 | break; | |
1118 | default: | |
1119 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1120 | break; | |
1121 | } | |
1547aba9 MB |
1122 | } |
1123 | } | |
db2a4165 | 1124 | |
f0fba2ad LG |
1125 | for (i = 0; i < card->num_rtd; i++) { |
1126 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1127 | |
f0fba2ad | 1128 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1129 | continue; |
1130 | ||
f0fba2ad LG |
1131 | if (driver->playback.stream_name != NULL) |
1132 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1133 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1134 | |
1135 | if (driver->capture.stream_name != NULL) | |
1136 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1137 | SND_SOC_DAPM_STREAM_RESUME); |
1138 | } | |
1139 | ||
3ff3f64b | 1140 | /* unmute any active DACs */ |
f0fba2ad LG |
1141 | for (i = 0; i < card->num_rtd; i++) { |
1142 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1143 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1144 | |
f0fba2ad | 1145 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1146 | continue; |
1147 | ||
f0fba2ad LG |
1148 | if (drv->ops->digital_mute && dai->playback_active) |
1149 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1150 | } |
1151 | ||
f0fba2ad LG |
1152 | for (i = 0; i < card->num_rtd; i++) { |
1153 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1154 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1155 | |
f0fba2ad | 1156 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1157 | continue; |
1158 | ||
f0fba2ad LG |
1159 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1160 | cpu_dai->driver->resume(cpu_dai); | |
1161 | if (platform->driver->resume && platform->suspended) { | |
1162 | platform->driver->resume(cpu_dai); | |
1163 | platform->suspended = 0; | |
1164 | } | |
db2a4165 FM |
1165 | } |
1166 | ||
87506549 MB |
1167 | if (card->resume_post) |
1168 | card->resume_post(pdev); | |
db2a4165 | 1169 | |
f0fba2ad | 1170 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1171 | |
1172 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1173 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1174 | } |
1175 | ||
1176 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1177 | static int soc_resume(struct device *dev) |
6ed25978 | 1178 | { |
416356fc | 1179 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1180 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1181 | int i; | |
b9dd94a8 | 1182 | |
64ab9baa MB |
1183 | /* AC97 devices might have other drivers hanging off them so |
1184 | * need to resume immediately. Other drivers don't have that | |
1185 | * problem and may take a substantial amount of time to resume | |
1186 | * due to I/O costs and anti-pop so handle them out of line. | |
1187 | */ | |
f0fba2ad LG |
1188 | for (i = 0; i < card->num_rtd; i++) { |
1189 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1190 | if (cpu_dai->driver->ac97_control) { | |
1191 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1192 | soc_resume_deferred(&card->deferred_resume_work); | |
1193 | } else { | |
1194 | dev_dbg(dev, "Scheduling resume work\n"); | |
1195 | if (!schedule_work(&card->deferred_resume_work)) | |
1196 | dev_err(dev, "resume work item may be lost\n"); | |
1197 | } | |
64ab9baa | 1198 | } |
6ed25978 | 1199 | |
db2a4165 FM |
1200 | return 0; |
1201 | } | |
db2a4165 FM |
1202 | #else |
1203 | #define soc_suspend NULL | |
1204 | #define soc_resume NULL | |
1205 | #endif | |
1206 | ||
02a06d30 BS |
1207 | static struct snd_soc_dai_ops null_dai_ops = { |
1208 | }; | |
1209 | ||
f0fba2ad | 1210 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1211 | { |
f0fba2ad LG |
1212 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1213 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1214 | struct snd_soc_codec *codec; |
435c5e25 | 1215 | struct snd_soc_platform *platform; |
f0fba2ad | 1216 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1217 | |
f0fba2ad LG |
1218 | if (rtd->complete) |
1219 | return 1; | |
1220 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1221 | |
f0fba2ad LG |
1222 | /* do we already have the CPU DAI for this link ? */ |
1223 | if (rtd->cpu_dai) { | |
1224 | goto find_codec; | |
1225 | } | |
1226 | /* no, then find CPU DAI from registered DAIs*/ | |
1227 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1228 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1229 | ||
1230 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1231 | return -ENODEV; | |
1232 | ||
1233 | rtd->cpu_dai = cpu_dai; | |
1234 | goto find_codec; | |
435c5e25 | 1235 | } |
435c5e25 | 1236 | } |
f0fba2ad LG |
1237 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1238 | dai_link->cpu_dai_name); | |
6308419a | 1239 | |
f0fba2ad LG |
1240 | find_codec: |
1241 | /* do we already have the CODEC for this link ? */ | |
1242 | if (rtd->codec) { | |
1243 | goto find_platform; | |
1244 | } | |
1245 | ||
1246 | /* no, then find CODEC from registered CODECs*/ | |
1247 | list_for_each_entry(codec, &codec_list, list) { | |
1248 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1249 | rtd->codec = codec; | |
1250 | ||
1251 | if (!try_module_get(codec->dev->driver->owner)) | |
1252 | return -ENODEV; | |
1253 | ||
1254 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ | |
1255 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1256 | if (codec->dev == codec_dai->dev && | |
1257 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1258 | rtd->codec_dai = codec_dai; | |
1259 | goto find_platform; | |
1260 | } | |
435c5e25 | 1261 | } |
f0fba2ad LG |
1262 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1263 | dai_link->codec_dai_name); | |
1264 | ||
1265 | goto find_platform; | |
435c5e25 | 1266 | } |
f0fba2ad LG |
1267 | } |
1268 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1269 | dai_link->codec_name); | |
6b05eda6 | 1270 | |
f0fba2ad LG |
1271 | find_platform: |
1272 | /* do we already have the CODEC DAI for this link ? */ | |
1273 | if (rtd->platform) { | |
1274 | goto out; | |
c5af3a2e | 1275 | } |
f0fba2ad LG |
1276 | /* no, then find CPU DAI from registered DAIs*/ |
1277 | list_for_each_entry(platform, &platform_list, list) { | |
1278 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
c5af3a2e | 1279 | |
f0fba2ad LG |
1280 | if (!try_module_get(platform->dev->driver->owner)) |
1281 | return -ENODEV; | |
1282 | ||
1283 | rtd->platform = platform; | |
1284 | goto out; | |
1285 | } | |
02a06d30 BS |
1286 | } |
1287 | ||
f0fba2ad LG |
1288 | dev_dbg(card->dev, "platform %s not registered\n", |
1289 | dai_link->platform_name); | |
1290 | return 0; | |
1291 | ||
1292 | out: | |
1293 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1294 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1295 | rtd->complete = 1; | |
1296 | card->num_rtd++; | |
1297 | } | |
1298 | return 1; | |
1299 | } | |
1300 | ||
1301 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1302 | { | |
1303 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1304 | struct snd_soc_codec *codec = rtd->codec; | |
1305 | struct snd_soc_platform *platform = rtd->platform; | |
1306 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1307 | int err; | |
1308 | ||
1309 | /* unregister the rtd device */ | |
1310 | if (rtd->dev_registered) { | |
1311 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1312 | device_unregister(&rtd->dev); | |
1313 | rtd->dev_registered = 0; | |
1314 | } | |
1315 | ||
1316 | /* remove the CODEC DAI */ | |
1317 | if (codec_dai && codec_dai->probed) { | |
1318 | if (codec_dai->driver->remove) { | |
1319 | err = codec_dai->driver->remove(codec_dai); | |
1320 | if (err < 0) | |
1321 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1322 | } |
f0fba2ad LG |
1323 | codec_dai->probed = 0; |
1324 | list_del(&codec_dai->card_list); | |
1325 | } | |
6b05eda6 | 1326 | |
f0fba2ad LG |
1327 | /* remove the platform */ |
1328 | if (platform && platform->probed) { | |
1329 | if (platform->driver->remove) { | |
1330 | err = platform->driver->remove(platform); | |
1331 | if (err < 0) | |
1332 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1333 | } | |
1334 | platform->probed = 0; | |
1335 | list_del(&platform->card_list); | |
1336 | module_put(platform->dev->driver->owner); | |
1337 | } | |
435c5e25 | 1338 | |
f0fba2ad LG |
1339 | /* remove the CODEC */ |
1340 | if (codec && codec->probed) { | |
1341 | if (codec->driver->remove) { | |
1342 | err = codec->driver->remove(codec); | |
1343 | if (err < 0) | |
1344 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1345 | } | |
435c5e25 | 1346 | |
f0fba2ad LG |
1347 | /* Make sure all DAPM widgets are freed */ |
1348 | snd_soc_dapm_free(codec); | |
96dd3622 | 1349 | |
f0fba2ad LG |
1350 | soc_cleanup_codec_debugfs(codec); |
1351 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1352 | codec->probed = 0; | |
1353 | list_del(&codec->card_list); | |
1354 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1355 | } |
1356 | ||
f0fba2ad LG |
1357 | /* remove the cpu_dai */ |
1358 | if (cpu_dai && cpu_dai->probed) { | |
1359 | if (cpu_dai->driver->remove) { | |
1360 | err = cpu_dai->driver->remove(cpu_dai); | |
1361 | if (err < 0) | |
1362 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1363 | } |
f0fba2ad LG |
1364 | cpu_dai->probed = 0; |
1365 | list_del(&cpu_dai->card_list); | |
1366 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1367 | } |
f0fba2ad | 1368 | } |
db2a4165 | 1369 | |
f0fba2ad LG |
1370 | static void rtd_release(struct device *dev) {} |
1371 | ||
1372 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1373 | { | |
1374 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1375 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1376 | struct snd_soc_codec *codec = rtd->codec; | |
1377 | struct snd_soc_platform *platform = rtd->platform; | |
1378 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1379 | int ret; | |
1380 | ||
1381 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1382 | ||
1383 | /* config components */ | |
1384 | codec_dai->codec = codec; | |
1385 | codec->card = card; | |
1386 | cpu_dai->platform = platform; | |
1387 | rtd->card = card; | |
1388 | rtd->dev.parent = card->dev; | |
1389 | codec_dai->card = card; | |
1390 | cpu_dai->card = card; | |
1391 | ||
1392 | /* set default power off timeout */ | |
1393 | rtd->pmdown_time = pmdown_time; | |
1394 | ||
1395 | /* probe the cpu_dai */ | |
1396 | if (!cpu_dai->probed) { | |
1397 | if (cpu_dai->driver->probe) { | |
1398 | ret = cpu_dai->driver->probe(cpu_dai); | |
1399 | if (ret < 0) { | |
1400 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1401 | cpu_dai->name); | |
1402 | return ret; | |
1403 | } | |
1404 | } | |
1405 | cpu_dai->probed = 1; | |
1406 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1407 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1408 | } |
1409 | ||
f0fba2ad LG |
1410 | /* probe the CODEC */ |
1411 | if (!codec->probed) { | |
1412 | if (codec->driver->probe) { | |
1413 | ret = codec->driver->probe(codec); | |
1414 | if (ret < 0) { | |
1415 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1416 | codec->name); | |
1417 | return ret; | |
1418 | } | |
1419 | } | |
13cb61f8 MB |
1420 | |
1421 | soc_init_codec_debugfs(codec); | |
1422 | ||
f0fba2ad LG |
1423 | /* mark codec as probed and add to card codec list */ |
1424 | codec->probed = 1; | |
1425 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1426 | } |
1427 | ||
f0fba2ad LG |
1428 | /* probe the platform */ |
1429 | if (!platform->probed) { | |
1430 | if (platform->driver->probe) { | |
1431 | ret = platform->driver->probe(platform); | |
1432 | if (ret < 0) { | |
1433 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1434 | platform->name); | |
1435 | return ret; | |
1436 | } | |
1437 | } | |
1438 | /* mark platform as probed and add to card platform list */ | |
1439 | platform->probed = 1; | |
1440 | list_add(&platform->card_list, &card->platform_dev_list); | |
1441 | } | |
6ed25978 | 1442 | |
f0fba2ad LG |
1443 | /* probe the CODEC DAI */ |
1444 | if (!codec_dai->probed) { | |
1445 | if (codec_dai->driver->probe) { | |
1446 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1447 | if (ret < 0) { |
f0fba2ad LG |
1448 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1449 | codec_dai->name); | |
1450 | return ret; | |
fe3e78e0 MB |
1451 | } |
1452 | } | |
f0fba2ad LG |
1453 | |
1454 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1455 | codec_dai->probed = 1; | |
1456 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1457 | } |
1458 | ||
f0fba2ad LG |
1459 | /* DAPM dai link stream work */ |
1460 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1461 | ||
1462 | /* now that all clients have probed, initialise the DAI link */ | |
1463 | if (dai_link->init) { | |
1464 | ret = dai_link->init(rtd); | |
1465 | if (ret < 0) { | |
1466 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1467 | return ret; | |
1468 | } | |
1469 | } | |
fe3e78e0 MB |
1470 | |
1471 | /* Make sure all DAPM widgets are instantiated */ | |
1472 | snd_soc_dapm_new_widgets(codec); | |
f0fba2ad | 1473 | snd_soc_dapm_sync(codec); |
fe3e78e0 | 1474 | |
f0fba2ad | 1475 | /* register the rtd device */ |
f0fba2ad LG |
1476 | rtd->dev.release = rtd_release; |
1477 | rtd->dev.init_name = dai_link->name; | |
1478 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1479 | if (ret < 0) { |
f0fba2ad LG |
1480 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1481 | return ret; | |
fe3e78e0 MB |
1482 | } |
1483 | ||
f0fba2ad LG |
1484 | rtd->dev_registered = 1; |
1485 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1486 | if (ret < 0) | |
1487 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1488 | ||
1489 | /* add DAPM sysfs entries for this codec */ | |
1490 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1491 | if (ret < 0) | |
1492 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1493 | ||
1494 | /* add codec sysfs entries */ | |
1495 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1496 | if (ret < 0) | |
1497 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1498 | ||
f0fba2ad LG |
1499 | /* create the pcm */ |
1500 | ret = soc_new_pcm(rtd, num); | |
1501 | if (ret < 0) { | |
1502 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1503 | return ret; | |
1504 | } | |
1505 | ||
1506 | /* add platform data for AC97 devices */ | |
1507 | if (rtd->codec_dai->driver->ac97_control) | |
1508 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1509 | ||
1510 | return 0; | |
1511 | } | |
1512 | ||
fe3e78e0 | 1513 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1514 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1515 | { | |
1516 | int ret; | |
1517 | ||
fe3e78e0 MB |
1518 | /* Only instantiate AC97 if not already done by the adaptor |
1519 | * for the generic AC97 subsystem. | |
1520 | */ | |
f0fba2ad | 1521 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1522 | /* |
1523 | * It is possible that the AC97 device is already registered to | |
1524 | * the device subsystem. This happens when the device is created | |
1525 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1526 | * is the generic AC97 glue but others migh emerge. | |
1527 | * | |
1528 | * In those cases we don't try to register the device again. | |
1529 | */ | |
1530 | if (!rtd->codec->ac97_created) | |
1531 | return 0; | |
f0fba2ad LG |
1532 | |
1533 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1534 | if (ret < 0) { |
1535 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1536 | return ret; |
fe3e78e0 | 1537 | } |
f0fba2ad LG |
1538 | |
1539 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1540 | } |
f0fba2ad LG |
1541 | return 0; |
1542 | } | |
1543 | ||
1544 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1545 | { | |
1546 | if (codec->ac97_registered) { | |
1547 | soc_ac97_dev_unregister(codec); | |
1548 | codec->ac97_registered = 0; | |
1549 | } | |
1550 | } | |
fe3e78e0 MB |
1551 | #endif |
1552 | ||
f0fba2ad LG |
1553 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1554 | { | |
1555 | struct platform_device *pdev = to_platform_device(card->dev); | |
1556 | int ret, i; | |
fe3e78e0 | 1557 | |
f0fba2ad | 1558 | mutex_lock(&card->mutex); |
dbe21408 | 1559 | |
f0fba2ad LG |
1560 | if (card->instantiated) { |
1561 | mutex_unlock(&card->mutex); | |
1562 | return; | |
1563 | } | |
fe3e78e0 | 1564 | |
f0fba2ad LG |
1565 | /* bind DAIs */ |
1566 | for (i = 0; i < card->num_links; i++) | |
1567 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1568 | |
f0fba2ad LG |
1569 | /* bind completed ? */ |
1570 | if (card->num_rtd != card->num_links) { | |
1571 | mutex_unlock(&card->mutex); | |
1572 | return; | |
1573 | } | |
435c5e25 | 1574 | |
f0fba2ad LG |
1575 | /* card bind complete so register a sound card */ |
1576 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1577 | card->owner, 0, &card->snd_card); | |
1578 | if (ret < 0) { | |
1579 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1580 | card->name); | |
1581 | mutex_unlock(&card->mutex); | |
1582 | return; | |
1583 | } | |
1584 | card->snd_card->dev = card->dev; | |
1585 | ||
1586 | #ifdef CONFIG_PM | |
1587 | /* deferred resume work */ | |
1588 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1589 | #endif | |
db2a4165 | 1590 | |
f0fba2ad LG |
1591 | /* initialise the sound card only once */ |
1592 | if (card->probe) { | |
1593 | ret = card->probe(pdev); | |
1594 | if (ret < 0) | |
1595 | goto card_probe_error; | |
1596 | } | |
fe3e78e0 | 1597 | |
f0fba2ad LG |
1598 | for (i = 0; i < card->num_links; i++) { |
1599 | ret = soc_probe_dai_link(card, i); | |
1600 | if (ret < 0) { | |
321de0d0 MB |
1601 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1602 | card->name, ret); | |
f0fba2ad LG |
1603 | goto probe_dai_err; |
1604 | } | |
1605 | } | |
db2a4165 | 1606 | |
f0fba2ad LG |
1607 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1608 | "%s", card->name); | |
1609 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1610 | "%s", card->name); | |
1611 | ||
1612 | ret = snd_card_register(card->snd_card); | |
1613 | if (ret < 0) { | |
1614 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1615 | goto probe_dai_err; | |
db2a4165 FM |
1616 | } |
1617 | ||
f0fba2ad LG |
1618 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1619 | /* register any AC97 codecs */ | |
1620 | for (i = 0; i < card->num_rtd; i++) { | |
1621 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1622 | if (ret < 0) { | |
1623 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1624 | goto probe_dai_err; | |
1625 | } | |
1626 | } | |
1627 | #endif | |
1628 | ||
1629 | card->instantiated = 1; | |
1630 | mutex_unlock(&card->mutex); | |
1631 | return; | |
1632 | ||
1633 | probe_dai_err: | |
1634 | for (i = 0; i < card->num_links; i++) | |
1635 | soc_remove_dai_link(card, i); | |
1636 | ||
1637 | card_probe_error: | |
87506549 MB |
1638 | if (card->remove) |
1639 | card->remove(pdev); | |
f0fba2ad LG |
1640 | |
1641 | snd_card_free(card->snd_card); | |
1642 | ||
1643 | mutex_unlock(&card->mutex); | |
435c5e25 | 1644 | } |
db2a4165 | 1645 | |
435c5e25 | 1646 | /* |
421f91d2 | 1647 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1648 | * client_mutex. |
1649 | */ | |
1650 | static void snd_soc_instantiate_cards(void) | |
1651 | { | |
1652 | struct snd_soc_card *card; | |
1653 | list_for_each_entry(card, &card_list, list) | |
1654 | snd_soc_instantiate_card(card); | |
1655 | } | |
1656 | ||
1657 | /* probes a new socdev */ | |
1658 | static int soc_probe(struct platform_device *pdev) | |
1659 | { | |
f0fba2ad | 1660 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1661 | int ret = 0; |
435c5e25 MB |
1662 | |
1663 | /* Bodge while we unpick instantiation */ | |
1664 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1665 | INIT_LIST_HEAD(&card->dai_dev_list); |
1666 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1667 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1668 | ||
435c5e25 MB |
1669 | ret = snd_soc_register_card(card); |
1670 | if (ret != 0) { | |
1671 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1672 | return ret; | |
1673 | } | |
1674 | ||
1675 | return 0; | |
db2a4165 FM |
1676 | } |
1677 | ||
1678 | /* removes a socdev */ | |
1679 | static int soc_remove(struct platform_device *pdev) | |
1680 | { | |
f0fba2ad | 1681 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1682 | int i; |
db2a4165 | 1683 | |
f0fba2ad | 1684 | if (card->instantiated) { |
914dc182 | 1685 | |
f0fba2ad LG |
1686 | /* make sure any delayed work runs */ |
1687 | for (i = 0; i < card->num_rtd; i++) { | |
1688 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1689 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1690 | } |
db2a4165 | 1691 | |
f0fba2ad LG |
1692 | /* remove and free each DAI */ |
1693 | for (i = 0; i < card->num_rtd; i++) | |
1694 | soc_remove_dai_link(card, i); | |
1695 | ||
1696 | /* remove the card */ | |
b2dfa62c GL |
1697 | if (card->remove) |
1698 | card->remove(pdev); | |
db2a4165 | 1699 | |
f0fba2ad LG |
1700 | kfree(card->rtd); |
1701 | snd_card_free(card->snd_card); | |
1702 | } | |
c5af3a2e | 1703 | snd_soc_unregister_card(card); |
db2a4165 FM |
1704 | return 0; |
1705 | } | |
1706 | ||
416356fc | 1707 | static int soc_poweroff(struct device *dev) |
51737470 | 1708 | { |
416356fc | 1709 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1710 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1711 | int i; | |
51737470 MB |
1712 | |
1713 | if (!card->instantiated) | |
416356fc | 1714 | return 0; |
51737470 MB |
1715 | |
1716 | /* Flush out pmdown_time work - we actually do want to run it | |
1717 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1718 | for (i = 0; i < card->num_rtd; i++) { |
1719 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1720 | run_delayed_work(&rtd->delayed_work); | |
1721 | } | |
51737470 | 1722 | |
f0fba2ad | 1723 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1724 | |
1725 | return 0; | |
51737470 MB |
1726 | } |
1727 | ||
47145210 | 1728 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1729 | .suspend = soc_suspend, |
1730 | .resume = soc_resume, | |
1731 | .poweroff = soc_poweroff, | |
1732 | }; | |
1733 | ||
db2a4165 FM |
1734 | /* ASoC platform driver */ |
1735 | static struct platform_driver soc_driver = { | |
1736 | .driver = { | |
1737 | .name = "soc-audio", | |
8b45a209 | 1738 | .owner = THIS_MODULE, |
416356fc | 1739 | .pm = &soc_pm_ops, |
db2a4165 FM |
1740 | }, |
1741 | .probe = soc_probe, | |
1742 | .remove = soc_remove, | |
db2a4165 FM |
1743 | }; |
1744 | ||
1745 | /* create a new pcm */ | |
f0fba2ad LG |
1746 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1747 | { | |
1748 | struct snd_soc_codec *codec = rtd->codec; | |
1749 | struct snd_soc_platform *platform = rtd->platform; | |
1750 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1751 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1752 | struct snd_pcm *pcm; |
1753 | char new_name[64]; | |
1754 | int ret = 0, playback = 0, capture = 0; | |
1755 | ||
db2a4165 | 1756 | /* check client and interface hw capabilities */ |
40ca1142 | 1757 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1758 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1759 | |
f0fba2ad | 1760 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1761 | playback = 1; |
f0fba2ad | 1762 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1763 | capture = 1; |
1764 | ||
f0fba2ad LG |
1765 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1766 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1767 | num, playback, capture, &pcm); | |
db2a4165 | 1768 | if (ret < 0) { |
f0fba2ad | 1769 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1770 | return ret; |
1771 | } | |
1772 | ||
f0fba2ad | 1773 | rtd->pcm = pcm; |
db2a4165 | 1774 | pcm->private_data = rtd; |
f0fba2ad LG |
1775 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1776 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1777 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1778 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1779 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1780 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1781 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1782 | |
1783 | if (playback) | |
1784 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1785 | ||
1786 | if (capture) | |
1787 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1788 | ||
f0fba2ad | 1789 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1790 | if (ret < 0) { |
1791 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1792 | return ret; |
1793 | } | |
1794 | ||
f0fba2ad | 1795 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1796 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1797 | cpu_dai->name); | |
1798 | return ret; | |
1799 | } | |
1800 | ||
096e49d5 MB |
1801 | /** |
1802 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1803 | * | |
1804 | * @codec: CODEC to query. | |
1805 | * @reg: Register to query. | |
1806 | * | |
1807 | * Boolean function indiciating if a CODEC register is volatile. | |
1808 | */ | |
1809 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1810 | { | |
f0fba2ad LG |
1811 | if (codec->driver->volatile_register) |
1812 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
1813 | else |
1814 | return 0; | |
1815 | } | |
1816 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1817 | ||
db2a4165 FM |
1818 | /** |
1819 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1820 | * @codec: audio codec | |
1821 | * @ops: AC97 bus operations | |
1822 | * @num: AC97 codec number | |
1823 | * | |
1824 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1825 | */ | |
1826 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1827 | struct snd_ac97_bus_ops *ops, int num) | |
1828 | { | |
1829 | mutex_lock(&codec->mutex); | |
1830 | ||
1831 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1832 | if (codec->ac97 == NULL) { | |
1833 | mutex_unlock(&codec->mutex); | |
1834 | return -ENOMEM; | |
1835 | } | |
1836 | ||
1837 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1838 | if (codec->ac97->bus == NULL) { | |
1839 | kfree(codec->ac97); | |
1840 | codec->ac97 = NULL; | |
1841 | mutex_unlock(&codec->mutex); | |
1842 | return -ENOMEM; | |
1843 | } | |
1844 | ||
1845 | codec->ac97->bus->ops = ops; | |
1846 | codec->ac97->num = num; | |
0562f788 MW |
1847 | |
1848 | /* | |
1849 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1850 | * device will be registered with the device subsystem later on. | |
1851 | */ | |
1852 | codec->ac97_created = 1; | |
1853 | ||
db2a4165 FM |
1854 | mutex_unlock(&codec->mutex); |
1855 | return 0; | |
1856 | } | |
1857 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1858 | ||
1859 | /** | |
1860 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1861 | * @codec: audio codec | |
1862 | * | |
1863 | * Frees AC97 codec device resources. | |
1864 | */ | |
1865 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1866 | { | |
1867 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1868 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1869 | soc_unregister_ac97_dai_link(codec); | |
1870 | #endif | |
db2a4165 FM |
1871 | kfree(codec->ac97->bus); |
1872 | kfree(codec->ac97); | |
1873 | codec->ac97 = NULL; | |
0562f788 | 1874 | codec->ac97_created = 0; |
db2a4165 FM |
1875 | mutex_unlock(&codec->mutex); |
1876 | } | |
1877 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1878 | ||
1879 | /** | |
1880 | * snd_soc_update_bits - update codec register bits | |
1881 | * @codec: audio codec | |
1882 | * @reg: codec register | |
1883 | * @mask: register mask | |
1884 | * @value: new value | |
1885 | * | |
1886 | * Writes new register value. | |
1887 | * | |
1888 | * Returns 1 for change else 0. | |
1889 | */ | |
1890 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1891 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1892 | { |
1893 | int change; | |
46f5822f | 1894 | unsigned int old, new; |
db2a4165 | 1895 | |
db2a4165 FM |
1896 | old = snd_soc_read(codec, reg); |
1897 | new = (old & ~mask) | value; | |
1898 | change = old != new; | |
1899 | if (change) | |
1900 | snd_soc_write(codec, reg, new); | |
1901 | ||
db2a4165 FM |
1902 | return change; |
1903 | } | |
1904 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1905 | ||
6c508c62 EN |
1906 | /** |
1907 | * snd_soc_update_bits_locked - update codec register bits | |
1908 | * @codec: audio codec | |
1909 | * @reg: codec register | |
1910 | * @mask: register mask | |
1911 | * @value: new value | |
1912 | * | |
1913 | * Writes new register value, and takes the codec mutex. | |
1914 | * | |
1915 | * Returns 1 for change else 0. | |
1916 | */ | |
dd1b3d53 MB |
1917 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1918 | unsigned short reg, unsigned int mask, | |
1919 | unsigned int value) | |
6c508c62 EN |
1920 | { |
1921 | int change; | |
1922 | ||
1923 | mutex_lock(&codec->mutex); | |
1924 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1925 | mutex_unlock(&codec->mutex); | |
1926 | ||
1927 | return change; | |
1928 | } | |
dd1b3d53 | 1929 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1930 | |
db2a4165 FM |
1931 | /** |
1932 | * snd_soc_test_bits - test register for change | |
1933 | * @codec: audio codec | |
1934 | * @reg: codec register | |
1935 | * @mask: register mask | |
1936 | * @value: new value | |
1937 | * | |
1938 | * Tests a register with a new value and checks if the new value is | |
1939 | * different from the old value. | |
1940 | * | |
1941 | * Returns 1 for change else 0. | |
1942 | */ | |
1943 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1944 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1945 | { |
1946 | int change; | |
46f5822f | 1947 | unsigned int old, new; |
db2a4165 | 1948 | |
db2a4165 FM |
1949 | old = snd_soc_read(codec, reg); |
1950 | new = (old & ~mask) | value; | |
1951 | change = old != new; | |
db2a4165 FM |
1952 | |
1953 | return change; | |
1954 | } | |
1955 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1956 | ||
db2a4165 FM |
1957 | /** |
1958 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1959 | * @substream: the pcm substream | |
1960 | * @hw: the hardware parameters | |
1961 | * | |
1962 | * Sets the substream runtime hardware parameters. | |
1963 | */ | |
1964 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1965 | const struct snd_pcm_hardware *hw) | |
1966 | { | |
1967 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1968 | runtime->hw.info = hw->info; | |
1969 | runtime->hw.formats = hw->formats; | |
1970 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1971 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1972 | runtime->hw.periods_min = hw->periods_min; | |
1973 | runtime->hw.periods_max = hw->periods_max; | |
1974 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1975 | runtime->hw.fifo_size = hw->fifo_size; | |
1976 | return 0; | |
1977 | } | |
1978 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1979 | ||
1980 | /** | |
1981 | * snd_soc_cnew - create new control | |
1982 | * @_template: control template | |
1983 | * @data: control private data | |
ac11a2b3 | 1984 | * @long_name: control long name |
db2a4165 FM |
1985 | * |
1986 | * Create a new mixer control from a template control. | |
1987 | * | |
1988 | * Returns 0 for success, else error. | |
1989 | */ | |
1990 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1991 | void *data, char *long_name) | |
1992 | { | |
1993 | struct snd_kcontrol_new template; | |
1994 | ||
1995 | memcpy(&template, _template, sizeof(template)); | |
1996 | if (long_name) | |
1997 | template.name = long_name; | |
db2a4165 FM |
1998 | template.index = 0; |
1999 | ||
2000 | return snd_ctl_new1(&template, data); | |
2001 | } | |
2002 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2003 | ||
3e8e1952 IM |
2004 | /** |
2005 | * snd_soc_add_controls - add an array of controls to a codec. | |
2006 | * Convienience function to add a list of controls. Many codecs were | |
2007 | * duplicating this code. | |
2008 | * | |
2009 | * @codec: codec to add controls to | |
2010 | * @controls: array of controls to add | |
2011 | * @num_controls: number of elements in the array | |
2012 | * | |
2013 | * Return 0 for success, else error. | |
2014 | */ | |
2015 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2016 | const struct snd_kcontrol_new *controls, int num_controls) | |
2017 | { | |
f0fba2ad | 2018 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2019 | int err, i; |
2020 | ||
2021 | for (i = 0; i < num_controls; i++) { | |
2022 | const struct snd_kcontrol_new *control = &controls[i]; | |
2023 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
2024 | if (err < 0) { | |
082100dc MB |
2025 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
2026 | codec->name, control->name, err); | |
3e8e1952 IM |
2027 | return err; |
2028 | } | |
2029 | } | |
2030 | ||
2031 | return 0; | |
2032 | } | |
2033 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2034 | ||
db2a4165 FM |
2035 | /** |
2036 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2037 | * @kcontrol: mixer control | |
2038 | * @uinfo: control element information | |
2039 | * | |
2040 | * Callback to provide information about a double enumerated | |
2041 | * mixer control. | |
2042 | * | |
2043 | * Returns 0 for success. | |
2044 | */ | |
2045 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2046 | struct snd_ctl_elem_info *uinfo) | |
2047 | { | |
2048 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2049 | ||
2050 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2051 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2052 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2053 | |
f8ba0b7b JS |
2054 | if (uinfo->value.enumerated.item > e->max - 1) |
2055 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2056 | strcpy(uinfo->value.enumerated.name, |
2057 | e->texts[uinfo->value.enumerated.item]); | |
2058 | return 0; | |
2059 | } | |
2060 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2061 | ||
2062 | /** | |
2063 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2064 | * @kcontrol: mixer control | |
ac11a2b3 | 2065 | * @ucontrol: control element information |
db2a4165 FM |
2066 | * |
2067 | * Callback to get the value of a double enumerated mixer. | |
2068 | * | |
2069 | * Returns 0 for success. | |
2070 | */ | |
2071 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2072 | struct snd_ctl_elem_value *ucontrol) | |
2073 | { | |
2074 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2075 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2076 | unsigned int val, bitmask; |
db2a4165 | 2077 | |
f8ba0b7b | 2078 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2079 | ; |
2080 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2081 | ucontrol->value.enumerated.item[0] |
2082 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2083 | if (e->shift_l != e->shift_r) |
2084 | ucontrol->value.enumerated.item[1] = | |
2085 | (val >> e->shift_r) & (bitmask - 1); | |
2086 | ||
2087 | return 0; | |
2088 | } | |
2089 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2090 | ||
2091 | /** | |
2092 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2093 | * @kcontrol: mixer control | |
ac11a2b3 | 2094 | * @ucontrol: control element information |
db2a4165 FM |
2095 | * |
2096 | * Callback to set the value of a double enumerated mixer. | |
2097 | * | |
2098 | * Returns 0 for success. | |
2099 | */ | |
2100 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2101 | struct snd_ctl_elem_value *ucontrol) | |
2102 | { | |
2103 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2104 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2105 | unsigned int val; |
2106 | unsigned int mask, bitmask; | |
db2a4165 | 2107 | |
f8ba0b7b | 2108 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2109 | ; |
f8ba0b7b | 2110 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2111 | return -EINVAL; |
2112 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2113 | mask = (bitmask - 1) << e->shift_l; | |
2114 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2115 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2116 | return -EINVAL; |
2117 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2118 | mask |= (bitmask - 1) << e->shift_r; | |
2119 | } | |
2120 | ||
6c508c62 | 2121 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2122 | } |
2123 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2124 | ||
2e72f8e3 PU |
2125 | /** |
2126 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2127 | * @kcontrol: mixer control | |
2128 | * @ucontrol: control element information | |
2129 | * | |
2130 | * Callback to get the value of a double semi enumerated mixer. | |
2131 | * | |
2132 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2133 | * used for handling bitfield coded enumeration for example. | |
2134 | * | |
2135 | * Returns 0 for success. | |
2136 | */ | |
2137 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2138 | struct snd_ctl_elem_value *ucontrol) | |
2139 | { | |
2140 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2141 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2142 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2143 | |
2144 | reg_val = snd_soc_read(codec, e->reg); | |
2145 | val = (reg_val >> e->shift_l) & e->mask; | |
2146 | for (mux = 0; mux < e->max; mux++) { | |
2147 | if (val == e->values[mux]) | |
2148 | break; | |
2149 | } | |
2150 | ucontrol->value.enumerated.item[0] = mux; | |
2151 | if (e->shift_l != e->shift_r) { | |
2152 | val = (reg_val >> e->shift_r) & e->mask; | |
2153 | for (mux = 0; mux < e->max; mux++) { | |
2154 | if (val == e->values[mux]) | |
2155 | break; | |
2156 | } | |
2157 | ucontrol->value.enumerated.item[1] = mux; | |
2158 | } | |
2159 | ||
2160 | return 0; | |
2161 | } | |
2162 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2163 | ||
2164 | /** | |
2165 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2166 | * @kcontrol: mixer control | |
2167 | * @ucontrol: control element information | |
2168 | * | |
2169 | * Callback to set the value of a double semi enumerated mixer. | |
2170 | * | |
2171 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2172 | * used for handling bitfield coded enumeration for example. | |
2173 | * | |
2174 | * Returns 0 for success. | |
2175 | */ | |
2176 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2177 | struct snd_ctl_elem_value *ucontrol) | |
2178 | { | |
2179 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2180 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2181 | unsigned int val; |
2182 | unsigned int mask; | |
2e72f8e3 PU |
2183 | |
2184 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2185 | return -EINVAL; | |
2186 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2187 | mask = e->mask << e->shift_l; | |
2188 | if (e->shift_l != e->shift_r) { | |
2189 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2190 | return -EINVAL; | |
2191 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2192 | mask |= e->mask << e->shift_r; | |
2193 | } | |
2194 | ||
6c508c62 | 2195 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2196 | } |
2197 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2198 | ||
db2a4165 FM |
2199 | /** |
2200 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2201 | * @kcontrol: mixer control | |
2202 | * @uinfo: control element information | |
2203 | * | |
2204 | * Callback to provide information about an external enumerated | |
2205 | * single mixer. | |
2206 | * | |
2207 | * Returns 0 for success. | |
2208 | */ | |
2209 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2210 | struct snd_ctl_elem_info *uinfo) | |
2211 | { | |
2212 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2213 | ||
2214 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2215 | uinfo->count = 1; | |
f8ba0b7b | 2216 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2217 | |
f8ba0b7b JS |
2218 | if (uinfo->value.enumerated.item > e->max - 1) |
2219 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2220 | strcpy(uinfo->value.enumerated.name, |
2221 | e->texts[uinfo->value.enumerated.item]); | |
2222 | return 0; | |
2223 | } | |
2224 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2225 | ||
2226 | /** | |
2227 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2228 | * @kcontrol: mixer control | |
2229 | * @uinfo: control element information | |
2230 | * | |
2231 | * Callback to provide information about a single external mixer control. | |
2232 | * | |
2233 | * Returns 0 for success. | |
2234 | */ | |
2235 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2236 | struct snd_ctl_elem_info *uinfo) | |
2237 | { | |
a7a4ac86 PZ |
2238 | int max = kcontrol->private_value; |
2239 | ||
fd5dfad9 | 2240 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2241 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2242 | else | |
2243 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2244 | |
db2a4165 FM |
2245 | uinfo->count = 1; |
2246 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2247 | uinfo->value.integer.max = max; |
db2a4165 FM |
2248 | return 0; |
2249 | } | |
2250 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2251 | ||
db2a4165 FM |
2252 | /** |
2253 | * snd_soc_info_volsw - single mixer info callback | |
2254 | * @kcontrol: mixer control | |
2255 | * @uinfo: control element information | |
2256 | * | |
2257 | * Callback to provide information about a single mixer control. | |
2258 | * | |
2259 | * Returns 0 for success. | |
2260 | */ | |
2261 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2262 | struct snd_ctl_elem_info *uinfo) | |
2263 | { | |
4eaa9819 JS |
2264 | struct soc_mixer_control *mc = |
2265 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2266 | int platform_max; |
762b8df7 | 2267 | unsigned int shift = mc->shift; |
815ecf8d | 2268 | unsigned int rshift = mc->rshift; |
db2a4165 | 2269 | |
d11bb4a9 PU |
2270 | if (!mc->platform_max) |
2271 | mc->platform_max = mc->max; | |
2272 | platform_max = mc->platform_max; | |
2273 | ||
2274 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2275 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2276 | else | |
2277 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2278 | ||
db2a4165 FM |
2279 | uinfo->count = shift == rshift ? 1 : 2; |
2280 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2281 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2282 | return 0; |
2283 | } | |
2284 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2285 | ||
2286 | /** | |
2287 | * snd_soc_get_volsw - single mixer get callback | |
2288 | * @kcontrol: mixer control | |
ac11a2b3 | 2289 | * @ucontrol: control element information |
db2a4165 FM |
2290 | * |
2291 | * Callback to get the value of a single mixer control. | |
2292 | * | |
2293 | * Returns 0 for success. | |
2294 | */ | |
2295 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2296 | struct snd_ctl_elem_value *ucontrol) | |
2297 | { | |
4eaa9819 JS |
2298 | struct soc_mixer_control *mc = |
2299 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2300 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2301 | unsigned int reg = mc->reg; |
2302 | unsigned int shift = mc->shift; | |
2303 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2304 | int max = mc->max; |
815ecf8d JS |
2305 | unsigned int mask = (1 << fls(max)) - 1; |
2306 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2307 | |
2308 | ucontrol->value.integer.value[0] = | |
2309 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2310 | if (shift != rshift) | |
2311 | ucontrol->value.integer.value[1] = | |
2312 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2313 | if (invert) { | |
2314 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2315 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2316 | if (shift != rshift) |
2317 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2318 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2319 | } |
2320 | ||
2321 | return 0; | |
2322 | } | |
2323 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2324 | ||
2325 | /** | |
2326 | * snd_soc_put_volsw - single mixer put callback | |
2327 | * @kcontrol: mixer control | |
ac11a2b3 | 2328 | * @ucontrol: control element information |
db2a4165 FM |
2329 | * |
2330 | * Callback to set the value of a single mixer control. | |
2331 | * | |
2332 | * Returns 0 for success. | |
2333 | */ | |
2334 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2335 | struct snd_ctl_elem_value *ucontrol) | |
2336 | { | |
4eaa9819 JS |
2337 | struct soc_mixer_control *mc = |
2338 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2339 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2340 | unsigned int reg = mc->reg; |
2341 | unsigned int shift = mc->shift; | |
2342 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2343 | int max = mc->max; |
815ecf8d JS |
2344 | unsigned int mask = (1 << fls(max)) - 1; |
2345 | unsigned int invert = mc->invert; | |
46f5822f | 2346 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2347 | |
2348 | val = (ucontrol->value.integer.value[0] & mask); | |
2349 | if (invert) | |
a7a4ac86 | 2350 | val = max - val; |
db2a4165 FM |
2351 | val_mask = mask << shift; |
2352 | val = val << shift; | |
2353 | if (shift != rshift) { | |
2354 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2355 | if (invert) | |
a7a4ac86 | 2356 | val2 = max - val2; |
db2a4165 FM |
2357 | val_mask |= mask << rshift; |
2358 | val |= val2 << rshift; | |
2359 | } | |
6c508c62 | 2360 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2361 | } |
2362 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2363 | ||
2364 | /** | |
2365 | * snd_soc_info_volsw_2r - double mixer info callback | |
2366 | * @kcontrol: mixer control | |
2367 | * @uinfo: control element information | |
2368 | * | |
2369 | * Callback to provide information about a double mixer control that | |
2370 | * spans 2 codec registers. | |
2371 | * | |
2372 | * Returns 0 for success. | |
2373 | */ | |
2374 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2375 | struct snd_ctl_elem_info *uinfo) | |
2376 | { | |
4eaa9819 JS |
2377 | struct soc_mixer_control *mc = |
2378 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2379 | int platform_max; |
a7a4ac86 | 2380 | |
d11bb4a9 PU |
2381 | if (!mc->platform_max) |
2382 | mc->platform_max = mc->max; | |
2383 | platform_max = mc->platform_max; | |
2384 | ||
2385 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2386 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2387 | else | |
2388 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2389 | |
db2a4165 FM |
2390 | uinfo->count = 2; |
2391 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2392 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2393 | return 0; |
2394 | } | |
2395 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2396 | ||
2397 | /** | |
2398 | * snd_soc_get_volsw_2r - double mixer get callback | |
2399 | * @kcontrol: mixer control | |
ac11a2b3 | 2400 | * @ucontrol: control element information |
db2a4165 FM |
2401 | * |
2402 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2403 | * | |
2404 | * Returns 0 for success. | |
2405 | */ | |
2406 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2407 | struct snd_ctl_elem_value *ucontrol) | |
2408 | { | |
4eaa9819 JS |
2409 | struct soc_mixer_control *mc = |
2410 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2411 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2412 | unsigned int reg = mc->reg; |
2413 | unsigned int reg2 = mc->rreg; | |
2414 | unsigned int shift = mc->shift; | |
4eaa9819 | 2415 | int max = mc->max; |
46f5822f | 2416 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2417 | unsigned int invert = mc->invert; |
db2a4165 FM |
2418 | |
2419 | ucontrol->value.integer.value[0] = | |
2420 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2421 | ucontrol->value.integer.value[1] = | |
2422 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2423 | if (invert) { | |
2424 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2425 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2426 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2427 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2428 | } |
2429 | ||
2430 | return 0; | |
2431 | } | |
2432 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2433 | ||
2434 | /** | |
2435 | * snd_soc_put_volsw_2r - double mixer set callback | |
2436 | * @kcontrol: mixer control | |
ac11a2b3 | 2437 | * @ucontrol: control element information |
db2a4165 FM |
2438 | * |
2439 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2440 | * | |
2441 | * Returns 0 for success. | |
2442 | */ | |
2443 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2444 | struct snd_ctl_elem_value *ucontrol) | |
2445 | { | |
4eaa9819 JS |
2446 | struct soc_mixer_control *mc = |
2447 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2448 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2449 | unsigned int reg = mc->reg; |
2450 | unsigned int reg2 = mc->rreg; | |
2451 | unsigned int shift = mc->shift; | |
4eaa9819 | 2452 | int max = mc->max; |
815ecf8d JS |
2453 | unsigned int mask = (1 << fls(max)) - 1; |
2454 | unsigned int invert = mc->invert; | |
db2a4165 | 2455 | int err; |
46f5822f | 2456 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2457 | |
2458 | val_mask = mask << shift; | |
2459 | val = (ucontrol->value.integer.value[0] & mask); | |
2460 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2461 | ||
2462 | if (invert) { | |
a7a4ac86 PZ |
2463 | val = max - val; |
2464 | val2 = max - val2; | |
db2a4165 FM |
2465 | } |
2466 | ||
2467 | val = val << shift; | |
2468 | val2 = val2 << shift; | |
2469 | ||
6c508c62 | 2470 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2471 | if (err < 0) |
db2a4165 FM |
2472 | return err; |
2473 | ||
6c508c62 | 2474 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2475 | return err; |
2476 | } | |
2477 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2478 | ||
e13ac2e9 MB |
2479 | /** |
2480 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2481 | * @kcontrol: mixer control | |
2482 | * @uinfo: control element information | |
2483 | * | |
2484 | * Callback to provide information about a signed mixer control. | |
2485 | * | |
2486 | * Returns 0 for success. | |
2487 | */ | |
2488 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2489 | struct snd_ctl_elem_info *uinfo) | |
2490 | { | |
4eaa9819 JS |
2491 | struct soc_mixer_control *mc = |
2492 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2493 | int platform_max; |
4eaa9819 | 2494 | int min = mc->min; |
e13ac2e9 | 2495 | |
d11bb4a9 PU |
2496 | if (!mc->platform_max) |
2497 | mc->platform_max = mc->max; | |
2498 | platform_max = mc->platform_max; | |
2499 | ||
e13ac2e9 MB |
2500 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2501 | uinfo->count = 2; | |
2502 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2503 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2504 | return 0; |
2505 | } | |
2506 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2507 | ||
2508 | /** | |
2509 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2510 | * @kcontrol: mixer control | |
ac11a2b3 | 2511 | * @ucontrol: control element information |
e13ac2e9 MB |
2512 | * |
2513 | * Callback to get the value of a signed mixer control. | |
2514 | * | |
2515 | * Returns 0 for success. | |
2516 | */ | |
2517 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2518 | struct snd_ctl_elem_value *ucontrol) | |
2519 | { | |
4eaa9819 JS |
2520 | struct soc_mixer_control *mc = |
2521 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2522 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2523 | unsigned int reg = mc->reg; |
4eaa9819 | 2524 | int min = mc->min; |
e13ac2e9 MB |
2525 | int val = snd_soc_read(codec, reg); |
2526 | ||
2527 | ucontrol->value.integer.value[0] = | |
2528 | ((signed char)(val & 0xff))-min; | |
2529 | ucontrol->value.integer.value[1] = | |
2530 | ((signed char)((val >> 8) & 0xff))-min; | |
2531 | return 0; | |
2532 | } | |
2533 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2534 | ||
2535 | /** | |
2536 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2537 | * @kcontrol: mixer control | |
ac11a2b3 | 2538 | * @ucontrol: control element information |
e13ac2e9 MB |
2539 | * |
2540 | * Callback to set the value of a signed mixer control. | |
2541 | * | |
2542 | * Returns 0 for success. | |
2543 | */ | |
2544 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2545 | struct snd_ctl_elem_value *ucontrol) | |
2546 | { | |
4eaa9819 JS |
2547 | struct soc_mixer_control *mc = |
2548 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2549 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2550 | unsigned int reg = mc->reg; |
4eaa9819 | 2551 | int min = mc->min; |
46f5822f | 2552 | unsigned int val; |
e13ac2e9 MB |
2553 | |
2554 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2555 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2556 | ||
6c508c62 | 2557 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2558 | } |
2559 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2560 | ||
637d3847 PU |
2561 | /** |
2562 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2563 | * | |
2564 | * @codec: where to look for the control | |
2565 | * @name: Name of the control | |
2566 | * @max: new maximum limit | |
2567 | * | |
2568 | * Return 0 for success, else error. | |
2569 | */ | |
2570 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2571 | const char *name, int max) | |
2572 | { | |
f0fba2ad | 2573 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2574 | struct snd_kcontrol *kctl; |
2575 | struct soc_mixer_control *mc; | |
2576 | int found = 0; | |
2577 | int ret = -EINVAL; | |
2578 | ||
2579 | /* Sanity check for name and max */ | |
2580 | if (unlikely(!name || max <= 0)) | |
2581 | return -EINVAL; | |
2582 | ||
2583 | list_for_each_entry(kctl, &card->controls, list) { | |
2584 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2585 | found = 1; | |
2586 | break; | |
2587 | } | |
2588 | } | |
2589 | if (found) { | |
2590 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2591 | if (max <= mc->max) { | |
d11bb4a9 | 2592 | mc->platform_max = max; |
637d3847 PU |
2593 | ret = 0; |
2594 | } | |
2595 | } | |
2596 | return ret; | |
2597 | } | |
2598 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2599 | ||
b6f4bb38 | 2600 | /** |
2601 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2602 | * mixer info callback | |
2603 | * @kcontrol: mixer control | |
2604 | * @uinfo: control element information | |
2605 | * | |
2606 | * Returns 0 for success. | |
2607 | */ | |
2608 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2609 | struct snd_ctl_elem_info *uinfo) | |
2610 | { | |
2611 | struct soc_mixer_control *mc = | |
2612 | (struct soc_mixer_control *)kcontrol->private_value; | |
2613 | int max = mc->max; | |
2614 | int min = mc->min; | |
2615 | ||
2616 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2617 | uinfo->count = 2; | |
2618 | uinfo->value.integer.min = 0; | |
2619 | uinfo->value.integer.max = max-min; | |
2620 | ||
2621 | return 0; | |
2622 | } | |
2623 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2624 | ||
2625 | /** | |
2626 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2627 | * mixer get callback | |
2628 | * @kcontrol: mixer control | |
2629 | * @uinfo: control element information | |
2630 | * | |
2631 | * Returns 0 for success. | |
2632 | */ | |
2633 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2634 | struct snd_ctl_elem_value *ucontrol) | |
2635 | { | |
2636 | struct soc_mixer_control *mc = | |
2637 | (struct soc_mixer_control *)kcontrol->private_value; | |
2638 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2639 | unsigned int mask = (1<<mc->shift)-1; | |
2640 | int min = mc->min; | |
2641 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2642 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2643 | ||
20630c7f SL |
2644 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2645 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2646 | return 0; |
2647 | } | |
2648 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2649 | ||
2650 | /** | |
2651 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2652 | * mixer put callback | |
2653 | * @kcontrol: mixer control | |
2654 | * @uinfo: control element information | |
2655 | * | |
2656 | * Returns 0 for success. | |
2657 | */ | |
2658 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2659 | struct snd_ctl_elem_value *ucontrol) | |
2660 | { | |
2661 | struct soc_mixer_control *mc = | |
2662 | (struct soc_mixer_control *)kcontrol->private_value; | |
2663 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2664 | unsigned int mask = (1<<mc->shift)-1; | |
2665 | int min = mc->min; | |
2666 | int ret; | |
2667 | unsigned int val, valr, oval, ovalr; | |
2668 | ||
2669 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2670 | val &= mask; | |
2671 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2672 | valr &= mask; | |
2673 | ||
2674 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2675 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2676 | ||
2677 | ret = 0; | |
2678 | if (oval != val) { | |
2679 | ret = snd_soc_write(codec, mc->reg, val); | |
2680 | if (ret < 0) | |
f1df5aec | 2681 | return ret; |
b6f4bb38 | 2682 | } |
2683 | if (ovalr != valr) { | |
2684 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2685 | if (ret < 0) | |
f1df5aec | 2686 | return ret; |
b6f4bb38 | 2687 | } |
2688 | ||
2689 | return 0; | |
2690 | } | |
2691 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2692 | ||
8c6529db LG |
2693 | /** |
2694 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2695 | * @dai: DAI | |
2696 | * @clk_id: DAI specific clock ID | |
2697 | * @freq: new clock frequency in Hz | |
2698 | * @dir: new clock direction - input/output. | |
2699 | * | |
2700 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2701 | */ | |
2702 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2703 | unsigned int freq, int dir) | |
2704 | { | |
f0fba2ad LG |
2705 | if (dai->driver && dai->driver->ops->set_sysclk) |
2706 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2707 | else |
2708 | return -EINVAL; | |
2709 | } | |
2710 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2711 | ||
2712 | /** | |
2713 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2714 | * @dai: DAI | |
ac11a2b3 | 2715 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2716 | * @div: new clock divisor. |
2717 | * | |
2718 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2719 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2720 | * and frame clocks as low as possible to save system power. | |
2721 | */ | |
2722 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2723 | int div_id, int div) | |
2724 | { | |
f0fba2ad LG |
2725 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2726 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2727 | else |
2728 | return -EINVAL; | |
2729 | } | |
2730 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2731 | ||
2732 | /** | |
2733 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2734 | * @dai: DAI | |
2735 | * @pll_id: DAI specific PLL ID | |
85488037 | 2736 | * @source: DAI specific source for the PLL |
8c6529db LG |
2737 | * @freq_in: PLL input clock frequency in Hz |
2738 | * @freq_out: requested PLL output clock frequency in Hz | |
2739 | * | |
2740 | * Configures and enables PLL to generate output clock based on input clock. | |
2741 | */ | |
85488037 MB |
2742 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2743 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2744 | { |
f0fba2ad LG |
2745 | if (dai->driver && dai->driver->ops->set_pll) |
2746 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2747 | freq_in, freq_out); |
8c6529db LG |
2748 | else |
2749 | return -EINVAL; | |
2750 | } | |
2751 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2752 | ||
2753 | /** | |
2754 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2755 | * @dai: DAI | |
8c6529db LG |
2756 | * @fmt: SND_SOC_DAIFMT_ format value. |
2757 | * | |
2758 | * Configures the DAI hardware format and clocking. | |
2759 | */ | |
2760 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2761 | { | |
f0fba2ad LG |
2762 | if (dai->driver && dai->driver->ops->set_fmt) |
2763 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2764 | else |
2765 | return -EINVAL; | |
2766 | } | |
2767 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2768 | ||
2769 | /** | |
2770 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2771 | * @dai: DAI | |
a5479e38 DR |
2772 | * @tx_mask: bitmask representing active TX slots. |
2773 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2774 | * @slots: Number of slots in use. |
a5479e38 | 2775 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2776 | * |
2777 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2778 | * specific. | |
2779 | */ | |
2780 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2781 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2782 | { |
f0fba2ad LG |
2783 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2784 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2785 | slots, slot_width); |
8c6529db LG |
2786 | else |
2787 | return -EINVAL; | |
2788 | } | |
2789 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2790 | ||
472df3cb BS |
2791 | /** |
2792 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2793 | * @dai: DAI | |
2794 | * @tx_num: how many TX channels | |
2795 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2796 | * 0~num-1 uses | |
2797 | * @rx_num: how many RX channels | |
2798 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2799 | * 0~num-1 uses | |
2800 | * | |
2801 | * configure the relationship between channel number and TDM slot number. | |
2802 | */ | |
2803 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2804 | unsigned int tx_num, unsigned int *tx_slot, | |
2805 | unsigned int rx_num, unsigned int *rx_slot) | |
2806 | { | |
f0fba2ad LG |
2807 | if (dai->driver && dai->driver->ops->set_channel_map) |
2808 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2809 | rx_num, rx_slot); |
2810 | else | |
2811 | return -EINVAL; | |
2812 | } | |
2813 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2814 | ||
8c6529db LG |
2815 | /** |
2816 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2817 | * @dai: DAI | |
2818 | * @tristate: tristate enable | |
2819 | * | |
2820 | * Tristates the DAI so that others can use it. | |
2821 | */ | |
2822 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2823 | { | |
f0fba2ad LG |
2824 | if (dai->driver && dai->driver->ops->set_tristate) |
2825 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2826 | else |
2827 | return -EINVAL; | |
2828 | } | |
2829 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2830 | ||
2831 | /** | |
2832 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2833 | * @dai: DAI | |
2834 | * @mute: mute enable | |
2835 | * | |
2836 | * Mutes the DAI DAC. | |
2837 | */ | |
2838 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2839 | { | |
f0fba2ad LG |
2840 | if (dai->driver && dai->driver->ops->digital_mute) |
2841 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2842 | else |
2843 | return -EINVAL; | |
2844 | } | |
2845 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2846 | ||
c5af3a2e MB |
2847 | /** |
2848 | * snd_soc_register_card - Register a card with the ASoC core | |
2849 | * | |
ac11a2b3 | 2850 | * @card: Card to register |
c5af3a2e MB |
2851 | * |
2852 | * Note that currently this is an internal only function: it will be | |
2853 | * exposed to machine drivers after further backporting of ASoC v2 | |
2854 | * registration APIs. | |
2855 | */ | |
2856 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2857 | { | |
f0fba2ad LG |
2858 | int i; |
2859 | ||
c5af3a2e MB |
2860 | if (!card->name || !card->dev) |
2861 | return -EINVAL; | |
2862 | ||
f0fba2ad LG |
2863 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links, |
2864 | GFP_KERNEL); | |
2865 | if (card->rtd == NULL) | |
2866 | return -ENOMEM; | |
2867 | ||
2868 | for (i = 0; i < card->num_links; i++) | |
2869 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2870 | ||
c5af3a2e MB |
2871 | INIT_LIST_HEAD(&card->list); |
2872 | card->instantiated = 0; | |
f0fba2ad | 2873 | mutex_init(&card->mutex); |
c5af3a2e MB |
2874 | |
2875 | mutex_lock(&client_mutex); | |
2876 | list_add(&card->list, &card_list); | |
435c5e25 | 2877 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2878 | mutex_unlock(&client_mutex); |
2879 | ||
2880 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2881 | ||
2882 | return 0; | |
2883 | } | |
2884 | ||
2885 | /** | |
2886 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2887 | * | |
ac11a2b3 | 2888 | * @card: Card to unregister |
c5af3a2e MB |
2889 | * |
2890 | * Note that currently this is an internal only function: it will be | |
2891 | * exposed to machine drivers after further backporting of ASoC v2 | |
2892 | * registration APIs. | |
2893 | */ | |
2894 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2895 | { | |
2896 | mutex_lock(&client_mutex); | |
2897 | list_del(&card->list); | |
2898 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2899 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2900 | ||
2901 | return 0; | |
2902 | } | |
2903 | ||
f0fba2ad LG |
2904 | /* |
2905 | * Simplify DAI link configuration by removing ".-1" from device names | |
2906 | * and sanitizing names. | |
2907 | */ | |
2908 | static inline char *fmt_single_name(struct device *dev, int *id) | |
2909 | { | |
2910 | char *found, name[NAME_SIZE]; | |
2911 | int id1, id2; | |
2912 | ||
2913 | if (dev_name(dev) == NULL) | |
2914 | return NULL; | |
2915 | ||
2916 | strncpy(name, dev_name(dev), NAME_SIZE); | |
2917 | ||
2918 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2919 | found = strstr(name, dev->driver->name); | |
2920 | if (found) { | |
2921 | /* get ID */ | |
2922 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2923 | ||
2924 | /* discard ID from name if ID == -1 */ | |
2925 | if (*id == -1) | |
2926 | found[strlen(dev->driver->name)] = '\0'; | |
2927 | } | |
2928 | ||
2929 | } else { | |
2930 | /* I2C component devices are named "bus-addr" */ | |
2931 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2932 | char tmp[NAME_SIZE]; | |
2933 | ||
2934 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2935 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2936 | |
2937 | /* sanitize component name for DAI link creation */ | |
2938 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
2939 | strncpy(name, tmp, NAME_SIZE); | |
2940 | } else | |
2941 | *id = 0; | |
2942 | } | |
2943 | ||
2944 | return kstrdup(name, GFP_KERNEL); | |
2945 | } | |
2946 | ||
2947 | /* | |
2948 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2949 | * any ".-1" and using the DAI name (instead of device name). | |
2950 | */ | |
2951 | static inline char *fmt_multiple_name(struct device *dev, | |
2952 | struct snd_soc_dai_driver *dai_drv) | |
2953 | { | |
2954 | if (dai_drv->name == NULL) { | |
2955 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2956 | dev_name(dev)); | |
2957 | return NULL; | |
2958 | } | |
2959 | ||
2960 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2961 | } | |
2962 | ||
9115171a MB |
2963 | /** |
2964 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2965 | * | |
ac11a2b3 | 2966 | * @dai: DAI to register |
9115171a | 2967 | */ |
f0fba2ad LG |
2968 | int snd_soc_register_dai(struct device *dev, |
2969 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2970 | { |
f0fba2ad LG |
2971 | struct snd_soc_dai *dai; |
2972 | ||
2973 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2974 | |
f0fba2ad LG |
2975 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2976 | if (dai == NULL) | |
2977 | return -ENOMEM; | |
9115171a | 2978 | |
f0fba2ad LG |
2979 | /* create DAI component name */ |
2980 | dai->name = fmt_single_name(dev, &dai->id); | |
2981 | if (dai->name == NULL) { | |
2982 | kfree(dai); | |
2983 | return -ENOMEM; | |
2984 | } | |
6335d055 | 2985 | |
f0fba2ad LG |
2986 | dai->dev = dev; |
2987 | dai->driver = dai_drv; | |
2988 | if (!dai->driver->ops) | |
2989 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
2990 | |
2991 | mutex_lock(&client_mutex); | |
2992 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2993 | snd_soc_instantiate_cards(); |
9115171a MB |
2994 | mutex_unlock(&client_mutex); |
2995 | ||
2996 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2997 | ||
2998 | return 0; | |
2999 | } | |
3000 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3001 | ||
3002 | /** | |
3003 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3004 | * | |
ac11a2b3 | 3005 | * @dai: DAI to unregister |
9115171a | 3006 | */ |
f0fba2ad | 3007 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3008 | { |
f0fba2ad LG |
3009 | struct snd_soc_dai *dai; |
3010 | ||
3011 | list_for_each_entry(dai, &dai_list, list) { | |
3012 | if (dev == dai->dev) | |
3013 | goto found; | |
3014 | } | |
3015 | return; | |
3016 | ||
3017 | found: | |
9115171a MB |
3018 | mutex_lock(&client_mutex); |
3019 | list_del(&dai->list); | |
3020 | mutex_unlock(&client_mutex); | |
3021 | ||
3022 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3023 | kfree(dai->name); |
3024 | kfree(dai); | |
9115171a MB |
3025 | } |
3026 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3027 | ||
3028 | /** | |
3029 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3030 | * | |
ac11a2b3 MB |
3031 | * @dai: Array of DAIs to register |
3032 | * @count: Number of DAIs | |
9115171a | 3033 | */ |
f0fba2ad LG |
3034 | int snd_soc_register_dais(struct device *dev, |
3035 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3036 | { |
f0fba2ad LG |
3037 | struct snd_soc_dai *dai; |
3038 | int i, ret = 0; | |
3039 | ||
720ffa4c | 3040 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3041 | |
3042 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3043 | |
3044 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
3045 | if (dai == NULL) | |
3046 | return -ENOMEM; | |
3047 | ||
3048 | /* create DAI component name */ | |
3049 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3050 | if (dai->name == NULL) { | |
3051 | kfree(dai); | |
3052 | ret = -EINVAL; | |
9115171a | 3053 | goto err; |
f0fba2ad LG |
3054 | } |
3055 | ||
3056 | dai->dev = dev; | |
f0fba2ad | 3057 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3058 | if (dai->driver->id) |
3059 | dai->id = dai->driver->id; | |
3060 | else | |
3061 | dai->id = i; | |
f0fba2ad LG |
3062 | if (!dai->driver->ops) |
3063 | dai->driver->ops = &null_dai_ops; | |
3064 | ||
3065 | mutex_lock(&client_mutex); | |
3066 | list_add(&dai->list, &dai_list); | |
3067 | mutex_unlock(&client_mutex); | |
3068 | ||
3069 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3070 | } |
3071 | ||
f0fba2ad | 3072 | snd_soc_instantiate_cards(); |
9115171a MB |
3073 | return 0; |
3074 | ||
3075 | err: | |
3076 | for (i--; i >= 0; i--) | |
f0fba2ad | 3077 | snd_soc_unregister_dai(dev); |
9115171a MB |
3078 | |
3079 | return ret; | |
3080 | } | |
3081 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3082 | ||
3083 | /** | |
3084 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3085 | * | |
ac11a2b3 MB |
3086 | * @dai: Array of DAIs to unregister |
3087 | * @count: Number of DAIs | |
9115171a | 3088 | */ |
f0fba2ad | 3089 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3090 | { |
3091 | int i; | |
3092 | ||
3093 | for (i = 0; i < count; i++) | |
f0fba2ad | 3094 | snd_soc_unregister_dai(dev); |
9115171a MB |
3095 | } |
3096 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3097 | ||
12a48a8c MB |
3098 | /** |
3099 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3100 | * | |
ac11a2b3 | 3101 | * @platform: platform to register |
12a48a8c | 3102 | */ |
f0fba2ad LG |
3103 | int snd_soc_register_platform(struct device *dev, |
3104 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3105 | { |
f0fba2ad LG |
3106 | struct snd_soc_platform *platform; |
3107 | ||
3108 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3109 | ||
3110 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3111 | if (platform == NULL) | |
3112 | return -ENOMEM; | |
3113 | ||
3114 | /* create platform component name */ | |
3115 | platform->name = fmt_single_name(dev, &platform->id); | |
3116 | if (platform->name == NULL) { | |
3117 | kfree(platform); | |
3118 | return -ENOMEM; | |
3119 | } | |
12a48a8c | 3120 | |
f0fba2ad LG |
3121 | platform->dev = dev; |
3122 | platform->driver = platform_drv; | |
12a48a8c MB |
3123 | |
3124 | mutex_lock(&client_mutex); | |
3125 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3126 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3127 | mutex_unlock(&client_mutex); |
3128 | ||
3129 | pr_debug("Registered platform '%s'\n", platform->name); | |
3130 | ||
3131 | return 0; | |
3132 | } | |
3133 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3134 | ||
3135 | /** | |
3136 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3137 | * | |
ac11a2b3 | 3138 | * @platform: platform to unregister |
12a48a8c | 3139 | */ |
f0fba2ad | 3140 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3141 | { |
f0fba2ad LG |
3142 | struct snd_soc_platform *platform; |
3143 | ||
3144 | list_for_each_entry(platform, &platform_list, list) { | |
3145 | if (dev == platform->dev) | |
3146 | goto found; | |
3147 | } | |
3148 | return; | |
3149 | ||
3150 | found: | |
12a48a8c MB |
3151 | mutex_lock(&client_mutex); |
3152 | list_del(&platform->list); | |
3153 | mutex_unlock(&client_mutex); | |
3154 | ||
3155 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3156 | kfree(platform->name); |
3157 | kfree(platform); | |
12a48a8c MB |
3158 | } |
3159 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3160 | ||
151ab22c MB |
3161 | static u64 codec_format_map[] = { |
3162 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3163 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3164 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3165 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3166 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3167 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3168 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3169 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3170 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3171 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3172 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3173 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3174 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3175 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3176 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3177 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3178 | }; | |
3179 | ||
3180 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3181 | * the endianness of the data but we're using the CPU format | |
3182 | * definitions which do need to include endianness so we ensure that | |
3183 | * codec DAIs always have both big and little endian variants set. | |
3184 | */ | |
3185 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3186 | { | |
3187 | int i; | |
3188 | ||
3189 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3190 | if (stream->formats & codec_format_map[i]) | |
3191 | stream->formats |= codec_format_map[i]; | |
3192 | } | |
3193 | ||
0d0cf00a MB |
3194 | /** |
3195 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3196 | * | |
ac11a2b3 | 3197 | * @codec: codec to register |
0d0cf00a | 3198 | */ |
f0fba2ad LG |
3199 | int snd_soc_register_codec(struct device *dev, |
3200 | struct snd_soc_codec_driver *codec_drv, | |
3201 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3202 | { |
f0fba2ad LG |
3203 | struct snd_soc_codec *codec; |
3204 | int ret, i; | |
151ab22c | 3205 | |
f0fba2ad LG |
3206 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3207 | ||
3208 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3209 | if (codec == NULL) | |
3210 | return -ENOMEM; | |
0d0cf00a | 3211 | |
f0fba2ad LG |
3212 | /* create CODEC component name */ |
3213 | codec->name = fmt_single_name(dev, &codec->id); | |
3214 | if (codec->name == NULL) { | |
3215 | kfree(codec); | |
3216 | return -ENOMEM; | |
3217 | } | |
3218 | ||
3219 | /* allocate CODEC register cache */ | |
3220 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
0d0cf00a | 3221 | |
f0fba2ad LG |
3222 | if (codec_drv->reg_cache_default) |
3223 | codec->reg_cache = kmemdup(codec_drv->reg_cache_default, | |
3224 | codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL); | |
3225 | else | |
3226 | codec->reg_cache = kzalloc(codec_drv->reg_cache_size * | |
3227 | codec_drv->reg_word_size, GFP_KERNEL); | |
0d0cf00a | 3228 | |
f0fba2ad LG |
3229 | if (codec->reg_cache == NULL) { |
3230 | kfree(codec->name); | |
3231 | kfree(codec); | |
3232 | return -ENOMEM; | |
3233 | } | |
151ab22c MB |
3234 | } |
3235 | ||
f0fba2ad LG |
3236 | codec->dev = dev; |
3237 | codec->driver = codec_drv; | |
3238 | codec->bias_level = SND_SOC_BIAS_OFF; | |
3239 | codec->num_dai = num_dai; | |
3240 | mutex_init(&codec->mutex); | |
3241 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
3242 | INIT_LIST_HEAD(&codec->dapm_paths); | |
3243 | ||
3244 | for (i = 0; i < num_dai; i++) { | |
3245 | fixup_codec_formats(&dai_drv[i].playback); | |
3246 | fixup_codec_formats(&dai_drv[i].capture); | |
3247 | } | |
3248 | ||
26b01ccd MB |
3249 | /* register any DAIs */ |
3250 | if (num_dai) { | |
3251 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3252 | if (ret < 0) | |
f0fba2ad | 3253 | goto error; |
26b01ccd | 3254 | } |
f0fba2ad | 3255 | |
0d0cf00a MB |
3256 | mutex_lock(&client_mutex); |
3257 | list_add(&codec->list, &codec_list); | |
3258 | snd_soc_instantiate_cards(); | |
3259 | mutex_unlock(&client_mutex); | |
3260 | ||
3261 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3262 | return 0; |
f0fba2ad LG |
3263 | |
3264 | error: | |
3265 | for (i--; i >= 0; i--) | |
3266 | snd_soc_unregister_dai(dev); | |
3267 | ||
3268 | if (codec->reg_cache) | |
3269 | kfree(codec->reg_cache); | |
3270 | kfree(codec->name); | |
3271 | kfree(codec); | |
3272 | return ret; | |
0d0cf00a MB |
3273 | } |
3274 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3275 | ||
3276 | /** | |
3277 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3278 | * | |
ac11a2b3 | 3279 | * @codec: codec to unregister |
0d0cf00a | 3280 | */ |
f0fba2ad | 3281 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3282 | { |
f0fba2ad LG |
3283 | struct snd_soc_codec *codec; |
3284 | int i; | |
3285 | ||
3286 | list_for_each_entry(codec, &codec_list, list) { | |
3287 | if (dev == codec->dev) | |
3288 | goto found; | |
3289 | } | |
3290 | return; | |
3291 | ||
3292 | found: | |
26b01ccd MB |
3293 | if (codec->num_dai) |
3294 | for (i = 0; i < codec->num_dai; i++) | |
3295 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3296 | |
0d0cf00a MB |
3297 | mutex_lock(&client_mutex); |
3298 | list_del(&codec->list); | |
3299 | mutex_unlock(&client_mutex); | |
3300 | ||
3301 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad LG |
3302 | |
3303 | if (codec->reg_cache) | |
3304 | kfree(codec->reg_cache); | |
1aafcd4d | 3305 | kfree(codec->name); |
f0fba2ad | 3306 | kfree(codec); |
0d0cf00a MB |
3307 | } |
3308 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3309 | ||
c9b3a40f | 3310 | static int __init snd_soc_init(void) |
db2a4165 | 3311 | { |
384c89e2 MB |
3312 | #ifdef CONFIG_DEBUG_FS |
3313 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3314 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3315 | printk(KERN_WARNING | |
3316 | "ASoC: Failed to create debugfs directory\n"); | |
3317 | debugfs_root = NULL; | |
3318 | } | |
c3c5a19a MB |
3319 | |
3320 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3321 | &codec_list_fops)) | |
3322 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3323 | ||
f3208780 MB |
3324 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3325 | &dai_list_fops)) | |
3326 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3327 | |
3328 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3329 | &platform_list_fops)) | |
3330 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3331 | #endif |
3332 | ||
db2a4165 FM |
3333 | return platform_driver_register(&soc_driver); |
3334 | } | |
4abe8e16 | 3335 | module_init(snd_soc_init); |
db2a4165 | 3336 | |
7d8c16a6 | 3337 | static void __exit snd_soc_exit(void) |
db2a4165 | 3338 | { |
384c89e2 MB |
3339 | #ifdef CONFIG_DEBUG_FS |
3340 | debugfs_remove_recursive(debugfs_root); | |
3341 | #endif | |
3ff3f64b | 3342 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3343 | } |
db2a4165 FM |
3344 | module_exit(snd_soc_exit); |
3345 | ||
3346 | /* Module information */ | |
d331124d | 3347 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3348 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3349 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3350 | MODULE_ALIAS("platform:soc-audio"); |