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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); | |
dbe21408 | 168 | |
f0fba2ad | 169 | strict_strtol(buf, 10, &rtd->pmdown_time); |
dbe21408 MB |
170 | |
171 | return count; | |
172 | } | |
173 | ||
174 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
175 | ||
2624d5fa MB |
176 | #ifdef CONFIG_DEBUG_FS |
177 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
178 | { | |
179 | file->private_data = inode->i_private; | |
180 | return 0; | |
181 | } | |
182 | ||
183 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
184 | size_t count, loff_t *ppos) | |
185 | { | |
186 | ssize_t ret; | |
187 | struct snd_soc_codec *codec = file->private_data; | |
188 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
189 | if (!buf) | |
190 | return -ENOMEM; | |
191 | ret = soc_codec_reg_show(codec, buf); | |
192 | if (ret >= 0) | |
193 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
194 | kfree(buf); | |
195 | return ret; | |
196 | } | |
197 | ||
198 | static ssize_t codec_reg_write_file(struct file *file, | |
199 | const char __user *user_buf, size_t count, loff_t *ppos) | |
200 | { | |
201 | char buf[32]; | |
202 | int buf_size; | |
203 | char *start = buf; | |
204 | unsigned long reg, value; | |
205 | int step = 1; | |
206 | struct snd_soc_codec *codec = file->private_data; | |
207 | ||
208 | buf_size = min(count, (sizeof(buf)-1)); | |
209 | if (copy_from_user(buf, user_buf, buf_size)) | |
210 | return -EFAULT; | |
211 | buf[buf_size] = 0; | |
212 | ||
f0fba2ad LG |
213 | if (codec->driver->reg_cache_step) |
214 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
215 | |
216 | while (*start == ' ') | |
217 | start++; | |
218 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 219 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
220 | return -EINVAL; |
221 | while (*start == ' ') | |
222 | start++; | |
223 | if (strict_strtoul(start, 16, &value)) | |
224 | return -EINVAL; | |
f0fba2ad | 225 | codec->driver->write(codec, reg, value); |
2624d5fa MB |
226 | return buf_size; |
227 | } | |
228 | ||
229 | static const struct file_operations codec_reg_fops = { | |
230 | .open = codec_reg_open_file, | |
231 | .read = codec_reg_read_file, | |
232 | .write = codec_reg_write_file, | |
6038f373 | 233 | .llseek = default_llseek, |
2624d5fa MB |
234 | }; |
235 | ||
236 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
237 | { | |
6ba6c9c3 | 238 | codec->debugfs_codec_root = debugfs_create_dir(codec->name , |
2624d5fa MB |
239 | debugfs_root); |
240 | if (!codec->debugfs_codec_root) { | |
241 | printk(KERN_WARNING | |
242 | "ASoC: Failed to create codec debugfs directory\n"); | |
243 | return; | |
244 | } | |
245 | ||
246 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
247 | codec->debugfs_codec_root, | |
248 | codec, &codec_reg_fops); | |
249 | if (!codec->debugfs_reg) | |
250 | printk(KERN_WARNING | |
251 | "ASoC: Failed to create codec register debugfs file\n"); | |
252 | ||
708fafb3 | 253 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, |
2624d5fa MB |
254 | codec->debugfs_codec_root, |
255 | &codec->pop_time); | |
256 | if (!codec->debugfs_pop_time) | |
257 | printk(KERN_WARNING | |
258 | "Failed to create pop time debugfs file\n"); | |
259 | ||
260 | codec->debugfs_dapm = debugfs_create_dir("dapm", | |
261 | codec->debugfs_codec_root); | |
262 | if (!codec->debugfs_dapm) | |
263 | printk(KERN_WARNING | |
264 | "Failed to create DAPM debugfs directory\n"); | |
265 | ||
266 | snd_soc_dapm_debugfs_init(codec); | |
267 | } | |
268 | ||
269 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
270 | { | |
271 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
272 | } | |
273 | ||
c3c5a19a MB |
274 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
275 | size_t count, loff_t *ppos) | |
276 | { | |
277 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 278 | ssize_t len, ret = 0; |
c3c5a19a MB |
279 | struct snd_soc_codec *codec; |
280 | ||
281 | if (!buf) | |
282 | return -ENOMEM; | |
283 | ||
2b194f9d MB |
284 | list_for_each_entry(codec, &codec_list, list) { |
285 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
286 | codec->name); | |
287 | if (len >= 0) | |
288 | ret += len; | |
289 | if (ret > PAGE_SIZE) { | |
290 | ret = PAGE_SIZE; | |
291 | break; | |
292 | } | |
293 | } | |
c3c5a19a MB |
294 | |
295 | if (ret >= 0) | |
296 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
297 | ||
298 | kfree(buf); | |
299 | ||
300 | return ret; | |
301 | } | |
302 | ||
303 | static const struct file_operations codec_list_fops = { | |
304 | .read = codec_list_read_file, | |
305 | .llseek = default_llseek,/* read accesses f_pos */ | |
306 | }; | |
307 | ||
f3208780 MB |
308 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
309 | size_t count, loff_t *ppos) | |
310 | { | |
311 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 312 | ssize_t len, ret = 0; |
f3208780 MB |
313 | struct snd_soc_dai *dai; |
314 | ||
315 | if (!buf) | |
316 | return -ENOMEM; | |
317 | ||
2b194f9d MB |
318 | list_for_each_entry(dai, &dai_list, list) { |
319 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
320 | if (len >= 0) | |
321 | ret += len; | |
322 | if (ret > PAGE_SIZE) { | |
323 | ret = PAGE_SIZE; | |
324 | break; | |
325 | } | |
326 | } | |
f3208780 | 327 | |
2b194f9d | 328 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
329 | |
330 | kfree(buf); | |
331 | ||
332 | return ret; | |
333 | } | |
334 | ||
335 | static const struct file_operations dai_list_fops = { | |
336 | .read = dai_list_read_file, | |
337 | .llseek = default_llseek,/* read accesses f_pos */ | |
338 | }; | |
339 | ||
19c7ac27 MB |
340 | static ssize_t platform_list_read_file(struct file *file, |
341 | char __user *user_buf, | |
342 | size_t count, loff_t *ppos) | |
343 | { | |
344 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 345 | ssize_t len, ret = 0; |
19c7ac27 MB |
346 | struct snd_soc_platform *platform; |
347 | ||
348 | if (!buf) | |
349 | return -ENOMEM; | |
350 | ||
2b194f9d MB |
351 | list_for_each_entry(platform, &platform_list, list) { |
352 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
353 | platform->name); | |
354 | if (len >= 0) | |
355 | ret += len; | |
356 | if (ret > PAGE_SIZE) { | |
357 | ret = PAGE_SIZE; | |
358 | break; | |
359 | } | |
360 | } | |
19c7ac27 | 361 | |
2b194f9d | 362 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
363 | |
364 | kfree(buf); | |
365 | ||
366 | return ret; | |
367 | } | |
368 | ||
369 | static const struct file_operations platform_list_fops = { | |
370 | .read = platform_list_read_file, | |
371 | .llseek = default_llseek,/* read accesses f_pos */ | |
372 | }; | |
373 | ||
2624d5fa MB |
374 | #else |
375 | ||
376 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
377 | { | |
378 | } | |
379 | ||
380 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
381 | { | |
382 | } | |
383 | #endif | |
384 | ||
db2a4165 FM |
385 | #ifdef CONFIG_SND_SOC_AC97_BUS |
386 | /* unregister ac97 codec */ | |
387 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
388 | { | |
389 | if (codec->ac97->dev.bus) | |
390 | device_unregister(&codec->ac97->dev); | |
391 | return 0; | |
392 | } | |
393 | ||
394 | /* stop no dev release warning */ | |
395 | static void soc_ac97_device_release(struct device *dev){} | |
396 | ||
397 | /* register ac97 codec to bus */ | |
398 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
399 | { | |
400 | int err; | |
401 | ||
402 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 403 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
404 | codec->ac97->dev.release = soc_ac97_device_release; |
405 | ||
bb072bf0 | 406 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 407 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
408 | err = device_register(&codec->ac97->dev); |
409 | if (err < 0) { | |
410 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
411 | codec->ac97->dev.bus = NULL; | |
412 | return err; | |
413 | } | |
414 | return 0; | |
415 | } | |
416 | #endif | |
417 | ||
06f409d7 MB |
418 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
419 | { | |
420 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
421 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
422 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
423 | int ret; |
424 | ||
f0fba2ad LG |
425 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
426 | rtd->dai_link->symmetric_rates) { | |
427 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
428 | rtd->rate); | |
06f409d7 MB |
429 | |
430 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
431 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
432 | rtd->rate, |
433 | rtd->rate); | |
06f409d7 | 434 | if (ret < 0) { |
f0fba2ad | 435 | dev_err(&rtd->dev, |
06f409d7 MB |
436 | "Unable to apply rate symmetry constraint: %d\n", ret); |
437 | return ret; | |
438 | } | |
439 | } | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
db2a4165 FM |
444 | /* |
445 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
446 | * then initialized and any private data can be allocated. This also calls | |
447 | * startup for the cpu DAI, platform, machine and codec DAI. | |
448 | */ | |
449 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
450 | { | |
451 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 452 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
453 | struct snd_soc_platform *platform = rtd->platform; |
454 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
455 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
456 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
457 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
458 | int ret = 0; |
459 | ||
460 | mutex_lock(&pcm_mutex); | |
461 | ||
462 | /* startup the audio subsystem */ | |
f0fba2ad LG |
463 | if (cpu_dai->driver->ops->startup) { |
464 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
465 | if (ret < 0) { |
466 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 467 | cpu_dai->name); |
db2a4165 FM |
468 | goto out; |
469 | } | |
470 | } | |
471 | ||
f0fba2ad LG |
472 | if (platform->driver->ops->open) { |
473 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
474 | if (ret < 0) { |
475 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
476 | goto platform_err; | |
477 | } | |
478 | } | |
479 | ||
f0fba2ad LG |
480 | if (codec_dai->driver->ops->startup) { |
481 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 482 | if (ret < 0) { |
cb666e5b LG |
483 | printk(KERN_ERR "asoc: can't open codec %s\n", |
484 | codec_dai->name); | |
485 | goto codec_dai_err; | |
db2a4165 FM |
486 | } |
487 | } | |
488 | ||
f0fba2ad LG |
489 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
490 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 491 | if (ret < 0) { |
f0fba2ad | 492 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 493 | goto machine_err; |
db2a4165 FM |
494 | } |
495 | } | |
496 | ||
db2a4165 FM |
497 | /* Check that the codec and cpu DAI's are compatible */ |
498 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
499 | runtime->hw.rate_min = | |
f0fba2ad LG |
500 | max(codec_dai_drv->playback.rate_min, |
501 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 502 | runtime->hw.rate_max = |
f0fba2ad LG |
503 | min(codec_dai_drv->playback.rate_max, |
504 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 505 | runtime->hw.channels_min = |
f0fba2ad LG |
506 | max(codec_dai_drv->playback.channels_min, |
507 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 508 | runtime->hw.channels_max = |
f0fba2ad LG |
509 | min(codec_dai_drv->playback.channels_max, |
510 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 511 | runtime->hw.formats = |
f0fba2ad | 512 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 513 | runtime->hw.rates = |
f0fba2ad LG |
514 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
515 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 516 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
517 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
518 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 519 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 520 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
521 | } else { |
522 | runtime->hw.rate_min = | |
f0fba2ad LG |
523 | max(codec_dai_drv->capture.rate_min, |
524 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 525 | runtime->hw.rate_max = |
f0fba2ad LG |
526 | min(codec_dai_drv->capture.rate_max, |
527 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 528 | runtime->hw.channels_min = |
f0fba2ad LG |
529 | max(codec_dai_drv->capture.channels_min, |
530 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 531 | runtime->hw.channels_max = |
f0fba2ad LG |
532 | min(codec_dai_drv->capture.channels_max, |
533 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 534 | runtime->hw.formats = |
f0fba2ad | 535 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 536 | runtime->hw.rates = |
f0fba2ad LG |
537 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
538 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 539 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
540 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
541 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 542 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 543 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
544 | } |
545 | ||
546 | snd_pcm_limit_hw_rates(runtime); | |
547 | if (!runtime->hw.rates) { | |
548 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 549 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 550 | goto config_err; |
db2a4165 FM |
551 | } |
552 | if (!runtime->hw.formats) { | |
553 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 554 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 555 | goto config_err; |
db2a4165 FM |
556 | } |
557 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
558 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 559 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 560 | goto config_err; |
db2a4165 FM |
561 | } |
562 | ||
06f409d7 MB |
563 | /* Symmetry only applies if we've already got an active stream. */ |
564 | if (cpu_dai->active || codec_dai->active) { | |
565 | ret = soc_pcm_apply_symmetry(substream); | |
566 | if (ret != 0) | |
bb1c0478 | 567 | goto config_err; |
06f409d7 MB |
568 | } |
569 | ||
f0fba2ad LG |
570 | pr_debug("asoc: %s <-> %s info:\n", |
571 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
572 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
573 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
574 | runtime->hw.channels_max); | |
575 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
576 | runtime->hw.rate_max); | |
db2a4165 | 577 | |
14dc5734 | 578 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
579 | cpu_dai->playback_active++; |
580 | codec_dai->playback_active++; | |
14dc5734 | 581 | } else { |
f0fba2ad LG |
582 | cpu_dai->capture_active++; |
583 | codec_dai->capture_active++; | |
14dc5734 JB |
584 | } |
585 | cpu_dai->active++; | |
586 | codec_dai->active++; | |
f0fba2ad | 587 | rtd->codec->active++; |
db2a4165 FM |
588 | mutex_unlock(&pcm_mutex); |
589 | return 0; | |
590 | ||
bb1c0478 | 591 | config_err: |
f0fba2ad LG |
592 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
593 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 594 | |
bb1c0478 | 595 | machine_err: |
f0fba2ad LG |
596 | if (codec_dai->driver->ops->shutdown) |
597 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 598 | |
cb666e5b | 599 | codec_dai_err: |
f0fba2ad LG |
600 | if (platform->driver->ops->close) |
601 | platform->driver->ops->close(substream); | |
db2a4165 FM |
602 | |
603 | platform_err: | |
f0fba2ad LG |
604 | if (cpu_dai->driver->ops->shutdown) |
605 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
606 | out: |
607 | mutex_unlock(&pcm_mutex); | |
608 | return ret; | |
609 | } | |
610 | ||
611 | /* | |
3a4fa0a2 | 612 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
613 | * This is to ensure there are no pops or clicks in between any music tracks |
614 | * due to DAPM power cycling. | |
615 | */ | |
4484bb2e | 616 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 617 | { |
f0fba2ad LG |
618 | struct snd_soc_pcm_runtime *rtd = |
619 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
620 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
621 | |
622 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
623 | |
624 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
625 | codec_dai->driver->playback.stream_name, | |
626 | codec_dai->playback_active ? "active" : "inactive", | |
627 | codec_dai->pop_wait ? "yes" : "no"); | |
628 | ||
629 | /* are we waiting on this codec DAI stream */ | |
630 | if (codec_dai->pop_wait == 1) { | |
631 | codec_dai->pop_wait = 0; | |
632 | snd_soc_dapm_stream_event(rtd, | |
633 | codec_dai->driver->playback.stream_name, | |
634 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 635 | } |
f0fba2ad | 636 | |
db2a4165 FM |
637 | mutex_unlock(&pcm_mutex); |
638 | } | |
639 | ||
640 | /* | |
641 | * Called by ALSA when a PCM substream is closed. Private data can be | |
642 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
643 | * shutdown. | |
644 | */ | |
645 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
646 | { | |
647 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
648 | struct snd_soc_platform *platform = rtd->platform; |
649 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
650 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
651 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
652 | |
653 | mutex_lock(&pcm_mutex); | |
654 | ||
14dc5734 | 655 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
656 | cpu_dai->playback_active--; |
657 | codec_dai->playback_active--; | |
14dc5734 | 658 | } else { |
f0fba2ad LG |
659 | cpu_dai->capture_active--; |
660 | codec_dai->capture_active--; | |
db2a4165 | 661 | } |
14dc5734 JB |
662 | |
663 | cpu_dai->active--; | |
664 | codec_dai->active--; | |
db2a4165 FM |
665 | codec->active--; |
666 | ||
6010b2da MB |
667 | /* Muting the DAC suppresses artifacts caused during digital |
668 | * shutdown, for example from stopping clocks. | |
669 | */ | |
670 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
671 | snd_soc_dai_digital_mute(codec_dai, 1); | |
672 | ||
f0fba2ad LG |
673 | if (cpu_dai->driver->ops->shutdown) |
674 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 675 | |
f0fba2ad LG |
676 | if (codec_dai->driver->ops->shutdown) |
677 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 678 | |
f0fba2ad LG |
679 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
680 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 681 | |
f0fba2ad LG |
682 | if (platform->driver->ops->close) |
683 | platform->driver->ops->close(substream); | |
684 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
685 | |
686 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
687 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 688 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
689 | schedule_delayed_work(&rtd->delayed_work, |
690 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
691 | } else { |
692 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
693 | snd_soc_dapm_stream_event(rtd, |
694 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 695 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
696 | } |
697 | ||
698 | mutex_unlock(&pcm_mutex); | |
699 | return 0; | |
700 | } | |
701 | ||
702 | /* | |
703 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
704 | * rate, etc. This function is non atomic and can be called multiple times, | |
705 | * it can refer to the runtime info. | |
706 | */ | |
707 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
708 | { | |
709 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
710 | struct snd_soc_platform *platform = rtd->platform; |
711 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
712 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
713 | int ret = 0; |
714 | ||
715 | mutex_lock(&pcm_mutex); | |
cb666e5b | 716 | |
f0fba2ad LG |
717 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
718 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
719 | if (ret < 0) { |
720 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
721 | goto out; | |
722 | } | |
723 | } | |
724 | ||
f0fba2ad LG |
725 | if (platform->driver->ops->prepare) { |
726 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
727 | if (ret < 0) { |
728 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 729 | goto out; |
a71a468a | 730 | } |
db2a4165 FM |
731 | } |
732 | ||
f0fba2ad LG |
733 | if (codec_dai->driver->ops->prepare) { |
734 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
735 | if (ret < 0) { |
736 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 737 | goto out; |
a71a468a | 738 | } |
db2a4165 FM |
739 | } |
740 | ||
f0fba2ad LG |
741 | if (cpu_dai->driver->ops->prepare) { |
742 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
743 | if (ret < 0) { |
744 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
745 | goto out; | |
746 | } | |
747 | } | |
db2a4165 | 748 | |
d45f6219 MB |
749 | /* cancel any delayed stream shutdown that is pending */ |
750 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
751 | codec_dai->pop_wait) { | |
752 | codec_dai->pop_wait = 0; | |
f0fba2ad | 753 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 754 | } |
db2a4165 | 755 | |
452c5eaa | 756 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
757 | snd_soc_dapm_stream_event(rtd, |
758 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
759 | SND_SOC_DAPM_STREAM_START); |
760 | else | |
f0fba2ad LG |
761 | snd_soc_dapm_stream_event(rtd, |
762 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 763 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 764 | |
452c5eaa | 765 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
766 | |
767 | out: | |
768 | mutex_unlock(&pcm_mutex); | |
769 | return ret; | |
770 | } | |
771 | ||
772 | /* | |
773 | * Called by ALSA when the hardware params are set by application. This | |
774 | * function can also be called multiple times and can allocate buffers | |
775 | * (using snd_pcm_lib_* ). It's non-atomic. | |
776 | */ | |
777 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
778 | struct snd_pcm_hw_params *params) | |
779 | { | |
780 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
781 | struct snd_soc_platform *platform = rtd->platform; |
782 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
783 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
784 | int ret = 0; |
785 | ||
786 | mutex_lock(&pcm_mutex); | |
787 | ||
f0fba2ad LG |
788 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
789 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
790 | if (ret < 0) { |
791 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 792 | goto out; |
cb666e5b | 793 | } |
db2a4165 FM |
794 | } |
795 | ||
f0fba2ad LG |
796 | if (codec_dai->driver->ops->hw_params) { |
797 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
798 | if (ret < 0) { |
799 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
800 | codec_dai->name); |
801 | goto codec_err; | |
db2a4165 FM |
802 | } |
803 | } | |
804 | ||
f0fba2ad LG |
805 | if (cpu_dai->driver->ops->hw_params) { |
806 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 807 | if (ret < 0) { |
3ff3f64b | 808 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 809 | cpu_dai->name); |
db2a4165 FM |
810 | goto interface_err; |
811 | } | |
812 | } | |
813 | ||
f0fba2ad LG |
814 | if (platform->driver->ops->hw_params) { |
815 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 816 | if (ret < 0) { |
3ff3f64b | 817 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
818 | platform->name); |
819 | goto platform_err; | |
820 | } | |
821 | } | |
822 | ||
f0fba2ad | 823 | rtd->rate = params_rate(params); |
06f409d7 | 824 | |
db2a4165 FM |
825 | out: |
826 | mutex_unlock(&pcm_mutex); | |
827 | return ret; | |
828 | ||
db2a4165 | 829 | platform_err: |
f0fba2ad LG |
830 | if (cpu_dai->driver->ops->hw_free) |
831 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
832 | |
833 | interface_err: | |
f0fba2ad LG |
834 | if (codec_dai->driver->ops->hw_free) |
835 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
836 | |
837 | codec_err: | |
f0fba2ad LG |
838 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
839 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
840 | |
841 | mutex_unlock(&pcm_mutex); | |
842 | return ret; | |
843 | } | |
844 | ||
845 | /* | |
846 | * Free's resources allocated by hw_params, can be called multiple times | |
847 | */ | |
848 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
849 | { | |
850 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
851 | struct snd_soc_platform *platform = rtd->platform; |
852 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
853 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
854 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
855 | |
856 | mutex_lock(&pcm_mutex); | |
857 | ||
858 | /* apply codec digital mute */ | |
8c6529db LG |
859 | if (!codec->active) |
860 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
861 | |
862 | /* free any machine hw params */ | |
f0fba2ad LG |
863 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
864 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
865 | |
866 | /* free any DMA resources */ | |
f0fba2ad LG |
867 | if (platform->driver->ops->hw_free) |
868 | platform->driver->ops->hw_free(substream); | |
db2a4165 FM |
869 | |
870 | /* now free hw params for the DAI's */ | |
f0fba2ad LG |
871 | if (codec_dai->driver->ops->hw_free) |
872 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 873 | |
f0fba2ad LG |
874 | if (cpu_dai->driver->ops->hw_free) |
875 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
876 | |
877 | mutex_unlock(&pcm_mutex); | |
878 | return 0; | |
879 | } | |
880 | ||
881 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
882 | { | |
883 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
884 | struct snd_soc_platform *platform = rtd->platform; |
885 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
886 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
887 | int ret; |
888 | ||
f0fba2ad LG |
889 | if (codec_dai->driver->ops->trigger) { |
890 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
891 | if (ret < 0) |
892 | return ret; | |
893 | } | |
894 | ||
f0fba2ad LG |
895 | if (platform->driver->ops->trigger) { |
896 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
897 | if (ret < 0) |
898 | return ret; | |
899 | } | |
900 | ||
f0fba2ad LG |
901 | if (cpu_dai->driver->ops->trigger) { |
902 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
903 | if (ret < 0) |
904 | return ret; | |
905 | } | |
906 | return 0; | |
907 | } | |
908 | ||
377b6f62 PU |
909 | /* |
910 | * soc level wrapper for pointer callback | |
258020d0 PU |
911 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
912 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
913 | */ |
914 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
915 | { | |
916 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
917 | struct snd_soc_platform *platform = rtd->platform; |
918 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
919 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 920 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 921 | snd_pcm_uframes_t offset = 0; |
258020d0 | 922 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 923 | |
f0fba2ad LG |
924 | if (platform->driver->ops->pointer) |
925 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 926 | |
f0fba2ad LG |
927 | if (cpu_dai->driver->ops->delay) |
928 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 929 | |
f0fba2ad LG |
930 | if (codec_dai->driver->ops->delay) |
931 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 932 | |
f0fba2ad LG |
933 | if (platform->driver->delay) |
934 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
935 | |
936 | runtime->delay = delay; | |
937 | ||
377b6f62 PU |
938 | return offset; |
939 | } | |
940 | ||
db2a4165 FM |
941 | /* ASoC PCM operations */ |
942 | static struct snd_pcm_ops soc_pcm_ops = { | |
943 | .open = soc_pcm_open, | |
944 | .close = soc_codec_close, | |
945 | .hw_params = soc_pcm_hw_params, | |
946 | .hw_free = soc_pcm_hw_free, | |
947 | .prepare = soc_pcm_prepare, | |
948 | .trigger = soc_pcm_trigger, | |
377b6f62 | 949 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
950 | }; |
951 | ||
952 | #ifdef CONFIG_PM | |
953 | /* powers down audio subsystem for suspend */ | |
416356fc | 954 | static int soc_suspend(struct device *dev) |
db2a4165 | 955 | { |
416356fc | 956 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 957 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 FM |
958 | int i; |
959 | ||
e3509ff0 DM |
960 | /* If the initialization of this soc device failed, there is no codec |
961 | * associated with it. Just bail out in this case. | |
962 | */ | |
f0fba2ad | 963 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
964 | return 0; |
965 | ||
6ed25978 AG |
966 | /* Due to the resume being scheduled into a workqueue we could |
967 | * suspend before that's finished - wait for it to complete. | |
968 | */ | |
f0fba2ad LG |
969 | snd_power_lock(card->snd_card); |
970 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
971 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
972 | |
973 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 974 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 975 | |
db2a4165 | 976 | /* mute any active DAC's */ |
f0fba2ad LG |
977 | for (i = 0; i < card->num_rtd; i++) { |
978 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
979 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 980 | |
f0fba2ad | 981 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
982 | continue; |
983 | ||
f0fba2ad LG |
984 | if (drv->ops->digital_mute && dai->playback_active) |
985 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
986 | } |
987 | ||
4ccab3e7 | 988 | /* suspend all pcms */ |
f0fba2ad LG |
989 | for (i = 0; i < card->num_rtd; i++) { |
990 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
991 | continue; |
992 | ||
f0fba2ad | 993 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 994 | } |
4ccab3e7 | 995 | |
87506549 | 996 | if (card->suspend_pre) |
416356fc | 997 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 998 | |
f0fba2ad LG |
999 | for (i = 0; i < card->num_rtd; i++) { |
1000 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1001 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1002 | |
f0fba2ad | 1003 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1004 | continue; |
1005 | ||
f0fba2ad LG |
1006 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1007 | cpu_dai->driver->suspend(cpu_dai); | |
1008 | if (platform->driver->suspend && !platform->suspended) { | |
1009 | platform->driver->suspend(cpu_dai); | |
1010 | platform->suspended = 1; | |
1011 | } | |
db2a4165 FM |
1012 | } |
1013 | ||
1014 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
1015 | for (i = 0; i < card->num_rtd; i++) { |
1016 | run_delayed_work(&card->rtd[i].delayed_work); | |
1017 | card->rtd[i].codec->suspend_bias_level = card->rtd[i].codec->bias_level; | |
1018 | } | |
db2a4165 | 1019 | |
f0fba2ad LG |
1020 | for (i = 0; i < card->num_rtd; i++) { |
1021 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1022 | |
f0fba2ad | 1023 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1024 | continue; |
1025 | ||
f0fba2ad LG |
1026 | if (driver->playback.stream_name != NULL) |
1027 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1028 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1029 | |
1030 | if (driver->capture.stream_name != NULL) | |
1031 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1032 | SND_SOC_DAPM_STREAM_SUSPEND); |
1033 | } | |
1034 | ||
f0fba2ad LG |
1035 | /* suspend all CODECs */ |
1036 | for (i = 0; i < card->num_rtd; i++) { | |
1037 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1038 | /* If there are paths active then the CODEC will be held with | |
1039 | * bias _ON and should not be suspended. */ | |
1040 | if (!codec->suspended && codec->driver->suspend) { | |
1041 | switch (codec->bias_level) { | |
1042 | case SND_SOC_BIAS_STANDBY: | |
1043 | case SND_SOC_BIAS_OFF: | |
1044 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1045 | codec->suspended = 1; | |
1046 | break; | |
1047 | default: | |
1048 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1049 | break; | |
1050 | } | |
1547aba9 MB |
1051 | } |
1052 | } | |
db2a4165 | 1053 | |
f0fba2ad LG |
1054 | for (i = 0; i < card->num_rtd; i++) { |
1055 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1056 | |
f0fba2ad | 1057 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1058 | continue; |
1059 | ||
f0fba2ad LG |
1060 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1061 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1062 | } |
1063 | ||
87506549 | 1064 | if (card->suspend_post) |
416356fc | 1065 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1066 | |
1067 | return 0; | |
1068 | } | |
1069 | ||
6ed25978 AG |
1070 | /* deferred resume work, so resume can complete before we finished |
1071 | * setting our codec back up, which can be very slow on I2C | |
1072 | */ | |
1073 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1074 | { |
f0fba2ad LG |
1075 | struct snd_soc_card *card = |
1076 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1077 | struct platform_device *pdev = to_platform_device(card->dev); | |
db2a4165 FM |
1078 | int i; |
1079 | ||
6ed25978 AG |
1080 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1081 | * so userspace apps are blocked from touching us | |
1082 | */ | |
1083 | ||
f0fba2ad | 1084 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1085 | |
9949788b | 1086 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1087 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1088 | |
87506549 MB |
1089 | if (card->resume_pre) |
1090 | card->resume_pre(pdev); | |
db2a4165 | 1091 | |
f0fba2ad LG |
1092 | /* resume AC97 DAIs */ |
1093 | for (i = 0; i < card->num_rtd; i++) { | |
1094 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1095 | |
f0fba2ad | 1096 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1097 | continue; |
1098 | ||
f0fba2ad LG |
1099 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1100 | cpu_dai->driver->resume(cpu_dai); | |
1101 | } | |
1102 | ||
1103 | for (i = 0; i < card->num_rtd; i++) { | |
1104 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1105 | /* If the CODEC was idle over suspend then it will have been | |
1106 | * left with bias OFF or STANDBY and suspended so we must now | |
1107 | * resume. Otherwise the suspend was suppressed. | |
1108 | */ | |
1109 | if (codec->driver->resume && codec->suspended) { | |
1110 | switch (codec->bias_level) { | |
1111 | case SND_SOC_BIAS_STANDBY: | |
1112 | case SND_SOC_BIAS_OFF: | |
1113 | codec->driver->resume(codec); | |
1114 | codec->suspended = 0; | |
1115 | break; | |
1116 | default: | |
1117 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1118 | break; | |
1119 | } | |
1547aba9 MB |
1120 | } |
1121 | } | |
db2a4165 | 1122 | |
f0fba2ad LG |
1123 | for (i = 0; i < card->num_rtd; i++) { |
1124 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1125 | |
f0fba2ad | 1126 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1127 | continue; |
1128 | ||
f0fba2ad LG |
1129 | if (driver->playback.stream_name != NULL) |
1130 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1131 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1132 | |
1133 | if (driver->capture.stream_name != NULL) | |
1134 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1135 | SND_SOC_DAPM_STREAM_RESUME); |
1136 | } | |
1137 | ||
3ff3f64b | 1138 | /* unmute any active DACs */ |
f0fba2ad LG |
1139 | for (i = 0; i < card->num_rtd; i++) { |
1140 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1141 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1142 | |
f0fba2ad | 1143 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1144 | continue; |
1145 | ||
f0fba2ad LG |
1146 | if (drv->ops->digital_mute && dai->playback_active) |
1147 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1148 | } |
1149 | ||
f0fba2ad LG |
1150 | for (i = 0; i < card->num_rtd; i++) { |
1151 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1152 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1153 | |
f0fba2ad | 1154 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1155 | continue; |
1156 | ||
f0fba2ad LG |
1157 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1158 | cpu_dai->driver->resume(cpu_dai); | |
1159 | if (platform->driver->resume && platform->suspended) { | |
1160 | platform->driver->resume(cpu_dai); | |
1161 | platform->suspended = 0; | |
1162 | } | |
db2a4165 FM |
1163 | } |
1164 | ||
87506549 MB |
1165 | if (card->resume_post) |
1166 | card->resume_post(pdev); | |
db2a4165 | 1167 | |
f0fba2ad | 1168 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1169 | |
1170 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1171 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1172 | } |
1173 | ||
1174 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1175 | static int soc_resume(struct device *dev) |
6ed25978 | 1176 | { |
416356fc | 1177 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1178 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1179 | int i; | |
b9dd94a8 | 1180 | |
64ab9baa MB |
1181 | /* AC97 devices might have other drivers hanging off them so |
1182 | * need to resume immediately. Other drivers don't have that | |
1183 | * problem and may take a substantial amount of time to resume | |
1184 | * due to I/O costs and anti-pop so handle them out of line. | |
1185 | */ | |
f0fba2ad LG |
1186 | for (i = 0; i < card->num_rtd; i++) { |
1187 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1188 | if (cpu_dai->driver->ac97_control) { | |
1189 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1190 | soc_resume_deferred(&card->deferred_resume_work); | |
1191 | } else { | |
1192 | dev_dbg(dev, "Scheduling resume work\n"); | |
1193 | if (!schedule_work(&card->deferred_resume_work)) | |
1194 | dev_err(dev, "resume work item may be lost\n"); | |
1195 | } | |
64ab9baa | 1196 | } |
6ed25978 | 1197 | |
db2a4165 FM |
1198 | return 0; |
1199 | } | |
db2a4165 FM |
1200 | #else |
1201 | #define soc_suspend NULL | |
1202 | #define soc_resume NULL | |
1203 | #endif | |
1204 | ||
02a06d30 BS |
1205 | static struct snd_soc_dai_ops null_dai_ops = { |
1206 | }; | |
1207 | ||
f0fba2ad | 1208 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1209 | { |
f0fba2ad LG |
1210 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1211 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1212 | struct snd_soc_codec *codec; |
435c5e25 | 1213 | struct snd_soc_platform *platform; |
f0fba2ad | 1214 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1215 | |
f0fba2ad LG |
1216 | if (rtd->complete) |
1217 | return 1; | |
1218 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1219 | |
f0fba2ad LG |
1220 | /* do we already have the CPU DAI for this link ? */ |
1221 | if (rtd->cpu_dai) { | |
1222 | goto find_codec; | |
1223 | } | |
1224 | /* no, then find CPU DAI from registered DAIs*/ | |
1225 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1226 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1227 | ||
1228 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1229 | return -ENODEV; | |
1230 | ||
1231 | rtd->cpu_dai = cpu_dai; | |
1232 | goto find_codec; | |
435c5e25 | 1233 | } |
435c5e25 | 1234 | } |
f0fba2ad LG |
1235 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1236 | dai_link->cpu_dai_name); | |
6308419a | 1237 | |
f0fba2ad LG |
1238 | find_codec: |
1239 | /* do we already have the CODEC for this link ? */ | |
1240 | if (rtd->codec) { | |
1241 | goto find_platform; | |
1242 | } | |
1243 | ||
1244 | /* no, then find CODEC from registered CODECs*/ | |
1245 | list_for_each_entry(codec, &codec_list, list) { | |
1246 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1247 | rtd->codec = codec; | |
1248 | ||
1249 | if (!try_module_get(codec->dev->driver->owner)) | |
1250 | return -ENODEV; | |
1251 | ||
1252 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ | |
1253 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1254 | if (codec->dev == codec_dai->dev && | |
1255 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1256 | rtd->codec_dai = codec_dai; | |
1257 | goto find_platform; | |
1258 | } | |
435c5e25 | 1259 | } |
f0fba2ad LG |
1260 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1261 | dai_link->codec_dai_name); | |
1262 | ||
1263 | goto find_platform; | |
435c5e25 | 1264 | } |
f0fba2ad LG |
1265 | } |
1266 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1267 | dai_link->codec_name); | |
6b05eda6 | 1268 | |
f0fba2ad LG |
1269 | find_platform: |
1270 | /* do we already have the CODEC DAI for this link ? */ | |
1271 | if (rtd->platform) { | |
1272 | goto out; | |
c5af3a2e | 1273 | } |
f0fba2ad LG |
1274 | /* no, then find CPU DAI from registered DAIs*/ |
1275 | list_for_each_entry(platform, &platform_list, list) { | |
1276 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
c5af3a2e | 1277 | |
f0fba2ad LG |
1278 | if (!try_module_get(platform->dev->driver->owner)) |
1279 | return -ENODEV; | |
1280 | ||
1281 | rtd->platform = platform; | |
1282 | goto out; | |
1283 | } | |
02a06d30 BS |
1284 | } |
1285 | ||
f0fba2ad LG |
1286 | dev_dbg(card->dev, "platform %s not registered\n", |
1287 | dai_link->platform_name); | |
1288 | return 0; | |
1289 | ||
1290 | out: | |
1291 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1292 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1293 | rtd->complete = 1; | |
1294 | card->num_rtd++; | |
1295 | } | |
1296 | return 1; | |
1297 | } | |
1298 | ||
1299 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1300 | { | |
1301 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1302 | struct snd_soc_codec *codec = rtd->codec; | |
1303 | struct snd_soc_platform *platform = rtd->platform; | |
1304 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1305 | int err; | |
1306 | ||
1307 | /* unregister the rtd device */ | |
1308 | if (rtd->dev_registered) { | |
1309 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1310 | device_unregister(&rtd->dev); | |
1311 | rtd->dev_registered = 0; | |
1312 | } | |
1313 | ||
1314 | /* remove the CODEC DAI */ | |
1315 | if (codec_dai && codec_dai->probed) { | |
1316 | if (codec_dai->driver->remove) { | |
1317 | err = codec_dai->driver->remove(codec_dai); | |
1318 | if (err < 0) | |
1319 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1320 | } |
f0fba2ad LG |
1321 | codec_dai->probed = 0; |
1322 | list_del(&codec_dai->card_list); | |
1323 | } | |
6b05eda6 | 1324 | |
f0fba2ad LG |
1325 | /* remove the platform */ |
1326 | if (platform && platform->probed) { | |
1327 | if (platform->driver->remove) { | |
1328 | err = platform->driver->remove(platform); | |
1329 | if (err < 0) | |
1330 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1331 | } | |
1332 | platform->probed = 0; | |
1333 | list_del(&platform->card_list); | |
1334 | module_put(platform->dev->driver->owner); | |
1335 | } | |
435c5e25 | 1336 | |
f0fba2ad LG |
1337 | /* remove the CODEC */ |
1338 | if (codec && codec->probed) { | |
1339 | if (codec->driver->remove) { | |
1340 | err = codec->driver->remove(codec); | |
1341 | if (err < 0) | |
1342 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1343 | } | |
435c5e25 | 1344 | |
f0fba2ad LG |
1345 | /* Make sure all DAPM widgets are freed */ |
1346 | snd_soc_dapm_free(codec); | |
96dd3622 | 1347 | |
f0fba2ad LG |
1348 | soc_cleanup_codec_debugfs(codec); |
1349 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1350 | codec->probed = 0; | |
1351 | list_del(&codec->card_list); | |
1352 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1353 | } |
1354 | ||
f0fba2ad LG |
1355 | /* remove the cpu_dai */ |
1356 | if (cpu_dai && cpu_dai->probed) { | |
1357 | if (cpu_dai->driver->remove) { | |
1358 | err = cpu_dai->driver->remove(cpu_dai); | |
1359 | if (err < 0) | |
1360 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1361 | } |
f0fba2ad LG |
1362 | cpu_dai->probed = 0; |
1363 | list_del(&cpu_dai->card_list); | |
1364 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1365 | } |
f0fba2ad | 1366 | } |
db2a4165 | 1367 | |
f0fba2ad LG |
1368 | static void rtd_release(struct device *dev) {} |
1369 | ||
1370 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1371 | { | |
1372 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1373 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1374 | struct snd_soc_codec *codec = rtd->codec; | |
1375 | struct snd_soc_platform *platform = rtd->platform; | |
1376 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1377 | int ret; | |
1378 | ||
1379 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1380 | ||
1381 | /* config components */ | |
1382 | codec_dai->codec = codec; | |
1383 | codec->card = card; | |
1384 | cpu_dai->platform = platform; | |
1385 | rtd->card = card; | |
1386 | rtd->dev.parent = card->dev; | |
1387 | codec_dai->card = card; | |
1388 | cpu_dai->card = card; | |
1389 | ||
1390 | /* set default power off timeout */ | |
1391 | rtd->pmdown_time = pmdown_time; | |
1392 | ||
1393 | /* probe the cpu_dai */ | |
1394 | if (!cpu_dai->probed) { | |
1395 | if (cpu_dai->driver->probe) { | |
1396 | ret = cpu_dai->driver->probe(cpu_dai); | |
1397 | if (ret < 0) { | |
1398 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1399 | cpu_dai->name); | |
1400 | return ret; | |
1401 | } | |
1402 | } | |
1403 | cpu_dai->probed = 1; | |
1404 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1405 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1406 | } |
1407 | ||
f0fba2ad LG |
1408 | /* probe the CODEC */ |
1409 | if (!codec->probed) { | |
1410 | if (codec->driver->probe) { | |
1411 | ret = codec->driver->probe(codec); | |
1412 | if (ret < 0) { | |
1413 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1414 | codec->name); | |
1415 | return ret; | |
1416 | } | |
1417 | } | |
13cb61f8 MB |
1418 | |
1419 | soc_init_codec_debugfs(codec); | |
1420 | ||
f0fba2ad LG |
1421 | /* mark codec as probed and add to card codec list */ |
1422 | codec->probed = 1; | |
1423 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1424 | } |
1425 | ||
f0fba2ad LG |
1426 | /* probe the platform */ |
1427 | if (!platform->probed) { | |
1428 | if (platform->driver->probe) { | |
1429 | ret = platform->driver->probe(platform); | |
1430 | if (ret < 0) { | |
1431 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1432 | platform->name); | |
1433 | return ret; | |
1434 | } | |
1435 | } | |
1436 | /* mark platform as probed and add to card platform list */ | |
1437 | platform->probed = 1; | |
1438 | list_add(&platform->card_list, &card->platform_dev_list); | |
1439 | } | |
6ed25978 | 1440 | |
f0fba2ad LG |
1441 | /* probe the CODEC DAI */ |
1442 | if (!codec_dai->probed) { | |
1443 | if (codec_dai->driver->probe) { | |
1444 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1445 | if (ret < 0) { |
f0fba2ad LG |
1446 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1447 | codec_dai->name); | |
1448 | return ret; | |
fe3e78e0 MB |
1449 | } |
1450 | } | |
f0fba2ad LG |
1451 | |
1452 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1453 | codec_dai->probed = 1; | |
1454 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1455 | } |
1456 | ||
f0fba2ad LG |
1457 | /* DAPM dai link stream work */ |
1458 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1459 | ||
1460 | /* now that all clients have probed, initialise the DAI link */ | |
1461 | if (dai_link->init) { | |
1462 | ret = dai_link->init(rtd); | |
1463 | if (ret < 0) { | |
1464 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1465 | return ret; | |
1466 | } | |
1467 | } | |
fe3e78e0 MB |
1468 | |
1469 | /* Make sure all DAPM widgets are instantiated */ | |
1470 | snd_soc_dapm_new_widgets(codec); | |
f0fba2ad | 1471 | snd_soc_dapm_sync(codec); |
fe3e78e0 | 1472 | |
f0fba2ad | 1473 | /* register the rtd device */ |
f0fba2ad LG |
1474 | rtd->dev.release = rtd_release; |
1475 | rtd->dev.init_name = dai_link->name; | |
1476 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1477 | if (ret < 0) { |
f0fba2ad LG |
1478 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1479 | return ret; | |
fe3e78e0 MB |
1480 | } |
1481 | ||
f0fba2ad LG |
1482 | rtd->dev_registered = 1; |
1483 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1484 | if (ret < 0) | |
1485 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1486 | ||
1487 | /* add DAPM sysfs entries for this codec */ | |
1488 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1489 | if (ret < 0) | |
1490 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1491 | ||
1492 | /* add codec sysfs entries */ | |
1493 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1494 | if (ret < 0) | |
1495 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1496 | ||
f0fba2ad LG |
1497 | /* create the pcm */ |
1498 | ret = soc_new_pcm(rtd, num); | |
1499 | if (ret < 0) { | |
1500 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1501 | return ret; | |
1502 | } | |
1503 | ||
1504 | /* add platform data for AC97 devices */ | |
1505 | if (rtd->codec_dai->driver->ac97_control) | |
1506 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1507 | ||
1508 | return 0; | |
1509 | } | |
1510 | ||
fe3e78e0 | 1511 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1512 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1513 | { | |
1514 | int ret; | |
1515 | ||
fe3e78e0 MB |
1516 | /* Only instantiate AC97 if not already done by the adaptor |
1517 | * for the generic AC97 subsystem. | |
1518 | */ | |
f0fba2ad | 1519 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1520 | /* |
1521 | * It is possible that the AC97 device is already registered to | |
1522 | * the device subsystem. This happens when the device is created | |
1523 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1524 | * is the generic AC97 glue but others migh emerge. | |
1525 | * | |
1526 | * In those cases we don't try to register the device again. | |
1527 | */ | |
1528 | if (!rtd->codec->ac97_created) | |
1529 | return 0; | |
f0fba2ad LG |
1530 | |
1531 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1532 | if (ret < 0) { |
1533 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1534 | return ret; |
fe3e78e0 | 1535 | } |
f0fba2ad LG |
1536 | |
1537 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1538 | } |
f0fba2ad LG |
1539 | return 0; |
1540 | } | |
1541 | ||
1542 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1543 | { | |
1544 | if (codec->ac97_registered) { | |
1545 | soc_ac97_dev_unregister(codec); | |
1546 | codec->ac97_registered = 0; | |
fe3e78e0 | 1547 | } |
f0fba2ad | 1548 | } |
fe3e78e0 MB |
1549 | #endif |
1550 | ||
f0fba2ad LG |
1551 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1552 | { | |
1553 | struct platform_device *pdev = to_platform_device(card->dev); | |
1554 | int ret, i; | |
fe3e78e0 | 1555 | |
f0fba2ad | 1556 | mutex_lock(&card->mutex); |
dbe21408 | 1557 | |
f0fba2ad LG |
1558 | if (card->instantiated) { |
1559 | mutex_unlock(&card->mutex); | |
1560 | return; | |
1561 | } | |
fe3e78e0 | 1562 | |
f0fba2ad LG |
1563 | /* bind DAIs */ |
1564 | for (i = 0; i < card->num_links; i++) | |
1565 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1566 | |
f0fba2ad LG |
1567 | /* bind completed ? */ |
1568 | if (card->num_rtd != card->num_links) { | |
1569 | mutex_unlock(&card->mutex); | |
1570 | return; | |
1571 | } | |
435c5e25 | 1572 | |
f0fba2ad LG |
1573 | /* card bind complete so register a sound card */ |
1574 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1575 | card->owner, 0, &card->snd_card); | |
1576 | if (ret < 0) { | |
1577 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1578 | card->name); | |
1579 | mutex_unlock(&card->mutex); | |
1580 | return; | |
1581 | } | |
1582 | card->snd_card->dev = card->dev; | |
db2a4165 | 1583 | |
f0fba2ad LG |
1584 | #ifdef CONFIG_PM |
1585 | /* deferred resume work */ | |
1586 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1587 | #endif | |
fe3e78e0 | 1588 | |
f0fba2ad LG |
1589 | /* initialise the sound card only once */ |
1590 | if (card->probe) { | |
1591 | ret = card->probe(pdev); | |
1592 | if (ret < 0) | |
1593 | goto card_probe_error; | |
1594 | } | |
db2a4165 | 1595 | |
f0fba2ad LG |
1596 | for (i = 0; i < card->num_links; i++) { |
1597 | ret = soc_probe_dai_link(card, i); | |
1598 | if (ret < 0) { | |
321de0d0 MB |
1599 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1600 | card->name, ret); | |
f0fba2ad LG |
1601 | goto probe_dai_err; |
1602 | } | |
db2a4165 FM |
1603 | } |
1604 | ||
f0fba2ad LG |
1605 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1606 | "%s", card->name); | |
1607 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1608 | "%s", card->name); | |
1609 | ||
1610 | ret = snd_card_register(card->snd_card); | |
1611 | if (ret < 0) { | |
1612 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1613 | goto probe_dai_err; | |
db2a4165 FM |
1614 | } |
1615 | ||
f0fba2ad LG |
1616 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1617 | /* register any AC97 codecs */ | |
1618 | for (i = 0; i < card->num_rtd; i++) { | |
1619 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1620 | if (ret < 0) { | |
1621 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1622 | goto probe_dai_err; | |
1623 | } | |
1624 | } | |
1625 | #endif | |
1626 | ||
1627 | card->instantiated = 1; | |
1628 | mutex_unlock(&card->mutex); | |
1629 | return; | |
1630 | ||
1631 | probe_dai_err: | |
1632 | for (i = 0; i < card->num_links; i++) | |
1633 | soc_remove_dai_link(card, i); | |
1634 | ||
1635 | card_probe_error: | |
87506549 MB |
1636 | if (card->remove) |
1637 | card->remove(pdev); | |
f0fba2ad LG |
1638 | |
1639 | snd_card_free(card->snd_card); | |
1640 | ||
1641 | mutex_unlock(&card->mutex); | |
435c5e25 | 1642 | } |
db2a4165 | 1643 | |
435c5e25 | 1644 | /* |
421f91d2 | 1645 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1646 | * client_mutex. |
1647 | */ | |
1648 | static void snd_soc_instantiate_cards(void) | |
1649 | { | |
1650 | struct snd_soc_card *card; | |
1651 | list_for_each_entry(card, &card_list, list) | |
1652 | snd_soc_instantiate_card(card); | |
1653 | } | |
1654 | ||
1655 | /* probes a new socdev */ | |
1656 | static int soc_probe(struct platform_device *pdev) | |
1657 | { | |
f0fba2ad | 1658 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1659 | int ret = 0; |
435c5e25 MB |
1660 | |
1661 | /* Bodge while we unpick instantiation */ | |
1662 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1663 | INIT_LIST_HEAD(&card->dai_dev_list); |
1664 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1665 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1666 | ||
435c5e25 MB |
1667 | ret = snd_soc_register_card(card); |
1668 | if (ret != 0) { | |
1669 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1670 | return ret; | |
1671 | } | |
1672 | ||
1673 | return 0; | |
db2a4165 FM |
1674 | } |
1675 | ||
1676 | /* removes a socdev */ | |
1677 | static int soc_remove(struct platform_device *pdev) | |
1678 | { | |
f0fba2ad | 1679 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1680 | int i; |
db2a4165 | 1681 | |
f0fba2ad | 1682 | if (card->instantiated) { |
965ac42c | 1683 | |
f0fba2ad LG |
1684 | /* make sure any delayed work runs */ |
1685 | for (i = 0; i < card->num_rtd; i++) { | |
1686 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1687 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1688 | } |
db2a4165 | 1689 | |
f0fba2ad LG |
1690 | /* remove and free each DAI */ |
1691 | for (i = 0; i < card->num_rtd; i++) | |
1692 | soc_remove_dai_link(card, i); | |
1693 | ||
1694 | /* remove the card */ | |
b2dfa62c GL |
1695 | if (card->remove) |
1696 | card->remove(pdev); | |
db2a4165 | 1697 | |
f0fba2ad LG |
1698 | kfree(card->rtd); |
1699 | snd_card_free(card->snd_card); | |
1700 | } | |
c5af3a2e | 1701 | snd_soc_unregister_card(card); |
db2a4165 FM |
1702 | return 0; |
1703 | } | |
1704 | ||
416356fc | 1705 | static int soc_poweroff(struct device *dev) |
51737470 | 1706 | { |
416356fc | 1707 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1708 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1709 | int i; | |
51737470 MB |
1710 | |
1711 | if (!card->instantiated) | |
416356fc | 1712 | return 0; |
51737470 MB |
1713 | |
1714 | /* Flush out pmdown_time work - we actually do want to run it | |
1715 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1716 | for (i = 0; i < card->num_rtd; i++) { |
1717 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1718 | run_delayed_work(&rtd->delayed_work); | |
1719 | } | |
51737470 | 1720 | |
f0fba2ad | 1721 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1722 | |
1723 | return 0; | |
51737470 MB |
1724 | } |
1725 | ||
47145210 | 1726 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1727 | .suspend = soc_suspend, |
1728 | .resume = soc_resume, | |
1729 | .poweroff = soc_poweroff, | |
1730 | }; | |
1731 | ||
db2a4165 FM |
1732 | /* ASoC platform driver */ |
1733 | static struct platform_driver soc_driver = { | |
1734 | .driver = { | |
1735 | .name = "soc-audio", | |
8b45a209 | 1736 | .owner = THIS_MODULE, |
416356fc | 1737 | .pm = &soc_pm_ops, |
db2a4165 FM |
1738 | }, |
1739 | .probe = soc_probe, | |
1740 | .remove = soc_remove, | |
db2a4165 FM |
1741 | }; |
1742 | ||
1743 | /* create a new pcm */ | |
f0fba2ad LG |
1744 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1745 | { | |
1746 | struct snd_soc_codec *codec = rtd->codec; | |
1747 | struct snd_soc_platform *platform = rtd->platform; | |
1748 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1749 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1750 | struct snd_pcm *pcm; |
1751 | char new_name[64]; | |
1752 | int ret = 0, playback = 0, capture = 0; | |
1753 | ||
db2a4165 | 1754 | /* check client and interface hw capabilities */ |
40ca1142 | 1755 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1756 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1757 | |
f0fba2ad | 1758 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1759 | playback = 1; |
f0fba2ad | 1760 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1761 | capture = 1; |
1762 | ||
f0fba2ad LG |
1763 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1764 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1765 | num, playback, capture, &pcm); | |
db2a4165 | 1766 | if (ret < 0) { |
f0fba2ad | 1767 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1768 | return ret; |
1769 | } | |
1770 | ||
f0fba2ad | 1771 | rtd->pcm = pcm; |
db2a4165 | 1772 | pcm->private_data = rtd; |
f0fba2ad LG |
1773 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1774 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1775 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1776 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1777 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1778 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1779 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1780 | |
1781 | if (playback) | |
1782 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1783 | ||
1784 | if (capture) | |
1785 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1786 | ||
f0fba2ad | 1787 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1788 | if (ret < 0) { |
1789 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1790 | return ret; |
1791 | } | |
1792 | ||
f0fba2ad | 1793 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1794 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1795 | cpu_dai->name); | |
1796 | return ret; | |
1797 | } | |
1798 | ||
096e49d5 MB |
1799 | /** |
1800 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1801 | * | |
1802 | * @codec: CODEC to query. | |
1803 | * @reg: Register to query. | |
1804 | * | |
1805 | * Boolean function indiciating if a CODEC register is volatile. | |
1806 | */ | |
1807 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1808 | { | |
f0fba2ad LG |
1809 | if (codec->driver->volatile_register) |
1810 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
1811 | else |
1812 | return 0; | |
1813 | } | |
1814 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1815 | ||
db2a4165 FM |
1816 | /** |
1817 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1818 | * @codec: audio codec | |
1819 | * @ops: AC97 bus operations | |
1820 | * @num: AC97 codec number | |
1821 | * | |
1822 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1823 | */ | |
1824 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1825 | struct snd_ac97_bus_ops *ops, int num) | |
1826 | { | |
1827 | mutex_lock(&codec->mutex); | |
1828 | ||
1829 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1830 | if (codec->ac97 == NULL) { | |
1831 | mutex_unlock(&codec->mutex); | |
1832 | return -ENOMEM; | |
1833 | } | |
1834 | ||
1835 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1836 | if (codec->ac97->bus == NULL) { | |
1837 | kfree(codec->ac97); | |
1838 | codec->ac97 = NULL; | |
1839 | mutex_unlock(&codec->mutex); | |
1840 | return -ENOMEM; | |
1841 | } | |
1842 | ||
1843 | codec->ac97->bus->ops = ops; | |
1844 | codec->ac97->num = num; | |
0562f788 MW |
1845 | |
1846 | /* | |
1847 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1848 | * device will be registered with the device subsystem later on. | |
1849 | */ | |
1850 | codec->ac97_created = 1; | |
1851 | ||
db2a4165 FM |
1852 | mutex_unlock(&codec->mutex); |
1853 | return 0; | |
1854 | } | |
1855 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1856 | ||
1857 | /** | |
1858 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1859 | * @codec: audio codec | |
1860 | * | |
1861 | * Frees AC97 codec device resources. | |
1862 | */ | |
1863 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1864 | { | |
1865 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1866 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1867 | soc_unregister_ac97_dai_link(codec); | |
1868 | #endif | |
db2a4165 FM |
1869 | kfree(codec->ac97->bus); |
1870 | kfree(codec->ac97); | |
1871 | codec->ac97 = NULL; | |
0562f788 | 1872 | codec->ac97_created = 0; |
db2a4165 FM |
1873 | mutex_unlock(&codec->mutex); |
1874 | } | |
1875 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1876 | ||
1877 | /** | |
1878 | * snd_soc_update_bits - update codec register bits | |
1879 | * @codec: audio codec | |
1880 | * @reg: codec register | |
1881 | * @mask: register mask | |
1882 | * @value: new value | |
1883 | * | |
1884 | * Writes new register value. | |
1885 | * | |
1886 | * Returns 1 for change else 0. | |
1887 | */ | |
1888 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1889 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1890 | { |
1891 | int change; | |
46f5822f | 1892 | unsigned int old, new; |
db2a4165 | 1893 | |
db2a4165 FM |
1894 | old = snd_soc_read(codec, reg); |
1895 | new = (old & ~mask) | value; | |
1896 | change = old != new; | |
1897 | if (change) | |
1898 | snd_soc_write(codec, reg, new); | |
1899 | ||
db2a4165 FM |
1900 | return change; |
1901 | } | |
1902 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1903 | ||
6c508c62 EN |
1904 | /** |
1905 | * snd_soc_update_bits_locked - update codec register bits | |
1906 | * @codec: audio codec | |
1907 | * @reg: codec register | |
1908 | * @mask: register mask | |
1909 | * @value: new value | |
1910 | * | |
1911 | * Writes new register value, and takes the codec mutex. | |
1912 | * | |
1913 | * Returns 1 for change else 0. | |
1914 | */ | |
dd1b3d53 MB |
1915 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1916 | unsigned short reg, unsigned int mask, | |
1917 | unsigned int value) | |
6c508c62 EN |
1918 | { |
1919 | int change; | |
1920 | ||
1921 | mutex_lock(&codec->mutex); | |
1922 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1923 | mutex_unlock(&codec->mutex); | |
1924 | ||
1925 | return change; | |
1926 | } | |
dd1b3d53 | 1927 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1928 | |
db2a4165 FM |
1929 | /** |
1930 | * snd_soc_test_bits - test register for change | |
1931 | * @codec: audio codec | |
1932 | * @reg: codec register | |
1933 | * @mask: register mask | |
1934 | * @value: new value | |
1935 | * | |
1936 | * Tests a register with a new value and checks if the new value is | |
1937 | * different from the old value. | |
1938 | * | |
1939 | * Returns 1 for change else 0. | |
1940 | */ | |
1941 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1942 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1943 | { |
1944 | int change; | |
46f5822f | 1945 | unsigned int old, new; |
db2a4165 | 1946 | |
db2a4165 FM |
1947 | old = snd_soc_read(codec, reg); |
1948 | new = (old & ~mask) | value; | |
1949 | change = old != new; | |
db2a4165 FM |
1950 | |
1951 | return change; | |
1952 | } | |
1953 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1954 | ||
db2a4165 FM |
1955 | /** |
1956 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1957 | * @substream: the pcm substream | |
1958 | * @hw: the hardware parameters | |
1959 | * | |
1960 | * Sets the substream runtime hardware parameters. | |
1961 | */ | |
1962 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1963 | const struct snd_pcm_hardware *hw) | |
1964 | { | |
1965 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1966 | runtime->hw.info = hw->info; | |
1967 | runtime->hw.formats = hw->formats; | |
1968 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1969 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1970 | runtime->hw.periods_min = hw->periods_min; | |
1971 | runtime->hw.periods_max = hw->periods_max; | |
1972 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1973 | runtime->hw.fifo_size = hw->fifo_size; | |
1974 | return 0; | |
1975 | } | |
1976 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1977 | ||
1978 | /** | |
1979 | * snd_soc_cnew - create new control | |
1980 | * @_template: control template | |
1981 | * @data: control private data | |
ac11a2b3 | 1982 | * @long_name: control long name |
db2a4165 FM |
1983 | * |
1984 | * Create a new mixer control from a template control. | |
1985 | * | |
1986 | * Returns 0 for success, else error. | |
1987 | */ | |
1988 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1989 | void *data, char *long_name) | |
1990 | { | |
1991 | struct snd_kcontrol_new template; | |
1992 | ||
1993 | memcpy(&template, _template, sizeof(template)); | |
1994 | if (long_name) | |
1995 | template.name = long_name; | |
db2a4165 FM |
1996 | template.index = 0; |
1997 | ||
1998 | return snd_ctl_new1(&template, data); | |
1999 | } | |
2000 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2001 | ||
3e8e1952 IM |
2002 | /** |
2003 | * snd_soc_add_controls - add an array of controls to a codec. | |
2004 | * Convienience function to add a list of controls. Many codecs were | |
2005 | * duplicating this code. | |
2006 | * | |
2007 | * @codec: codec to add controls to | |
2008 | * @controls: array of controls to add | |
2009 | * @num_controls: number of elements in the array | |
2010 | * | |
2011 | * Return 0 for success, else error. | |
2012 | */ | |
2013 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2014 | const struct snd_kcontrol_new *controls, int num_controls) | |
2015 | { | |
f0fba2ad | 2016 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
2017 | int err, i; |
2018 | ||
2019 | for (i = 0; i < num_controls; i++) { | |
2020 | const struct snd_kcontrol_new *control = &controls[i]; | |
2021 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
2022 | if (err < 0) { | |
082100dc MB |
2023 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
2024 | codec->name, control->name, err); | |
3e8e1952 IM |
2025 | return err; |
2026 | } | |
2027 | } | |
2028 | ||
2029 | return 0; | |
2030 | } | |
2031 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2032 | ||
db2a4165 FM |
2033 | /** |
2034 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2035 | * @kcontrol: mixer control | |
2036 | * @uinfo: control element information | |
2037 | * | |
2038 | * Callback to provide information about a double enumerated | |
2039 | * mixer control. | |
2040 | * | |
2041 | * Returns 0 for success. | |
2042 | */ | |
2043 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2044 | struct snd_ctl_elem_info *uinfo) | |
2045 | { | |
2046 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2047 | ||
2048 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2049 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2050 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2051 | |
f8ba0b7b JS |
2052 | if (uinfo->value.enumerated.item > e->max - 1) |
2053 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2054 | strcpy(uinfo->value.enumerated.name, |
2055 | e->texts[uinfo->value.enumerated.item]); | |
2056 | return 0; | |
2057 | } | |
2058 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2059 | ||
2060 | /** | |
2061 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2062 | * @kcontrol: mixer control | |
ac11a2b3 | 2063 | * @ucontrol: control element information |
db2a4165 FM |
2064 | * |
2065 | * Callback to get the value of a double enumerated mixer. | |
2066 | * | |
2067 | * Returns 0 for success. | |
2068 | */ | |
2069 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2070 | struct snd_ctl_elem_value *ucontrol) | |
2071 | { | |
2072 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2073 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2074 | unsigned int val, bitmask; |
db2a4165 | 2075 | |
f8ba0b7b | 2076 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2077 | ; |
2078 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2079 | ucontrol->value.enumerated.item[0] |
2080 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2081 | if (e->shift_l != e->shift_r) |
2082 | ucontrol->value.enumerated.item[1] = | |
2083 | (val >> e->shift_r) & (bitmask - 1); | |
2084 | ||
2085 | return 0; | |
2086 | } | |
2087 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2088 | ||
2089 | /** | |
2090 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2091 | * @kcontrol: mixer control | |
ac11a2b3 | 2092 | * @ucontrol: control element information |
db2a4165 FM |
2093 | * |
2094 | * Callback to set the value of a double enumerated mixer. | |
2095 | * | |
2096 | * Returns 0 for success. | |
2097 | */ | |
2098 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2099 | struct snd_ctl_elem_value *ucontrol) | |
2100 | { | |
2101 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2102 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2103 | unsigned int val; |
2104 | unsigned int mask, bitmask; | |
db2a4165 | 2105 | |
f8ba0b7b | 2106 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2107 | ; |
f8ba0b7b | 2108 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2109 | return -EINVAL; |
2110 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2111 | mask = (bitmask - 1) << e->shift_l; | |
2112 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2113 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2114 | return -EINVAL; |
2115 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2116 | mask |= (bitmask - 1) << e->shift_r; | |
2117 | } | |
2118 | ||
6c508c62 | 2119 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2120 | } |
2121 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2122 | ||
2e72f8e3 PU |
2123 | /** |
2124 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2125 | * @kcontrol: mixer control | |
2126 | * @ucontrol: control element information | |
2127 | * | |
2128 | * Callback to get the value of a double semi enumerated mixer. | |
2129 | * | |
2130 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2131 | * used for handling bitfield coded enumeration for example. | |
2132 | * | |
2133 | * Returns 0 for success. | |
2134 | */ | |
2135 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2136 | struct snd_ctl_elem_value *ucontrol) | |
2137 | { | |
2138 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2139 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2140 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2141 | |
2142 | reg_val = snd_soc_read(codec, e->reg); | |
2143 | val = (reg_val >> e->shift_l) & e->mask; | |
2144 | for (mux = 0; mux < e->max; mux++) { | |
2145 | if (val == e->values[mux]) | |
2146 | break; | |
2147 | } | |
2148 | ucontrol->value.enumerated.item[0] = mux; | |
2149 | if (e->shift_l != e->shift_r) { | |
2150 | val = (reg_val >> e->shift_r) & e->mask; | |
2151 | for (mux = 0; mux < e->max; mux++) { | |
2152 | if (val == e->values[mux]) | |
2153 | break; | |
2154 | } | |
2155 | ucontrol->value.enumerated.item[1] = mux; | |
2156 | } | |
2157 | ||
2158 | return 0; | |
2159 | } | |
2160 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2161 | ||
2162 | /** | |
2163 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2164 | * @kcontrol: mixer control | |
2165 | * @ucontrol: control element information | |
2166 | * | |
2167 | * Callback to set the value of a double semi enumerated mixer. | |
2168 | * | |
2169 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2170 | * used for handling bitfield coded enumeration for example. | |
2171 | * | |
2172 | * Returns 0 for success. | |
2173 | */ | |
2174 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2175 | struct snd_ctl_elem_value *ucontrol) | |
2176 | { | |
2177 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2178 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2179 | unsigned int val; |
2180 | unsigned int mask; | |
2e72f8e3 PU |
2181 | |
2182 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2183 | return -EINVAL; | |
2184 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2185 | mask = e->mask << e->shift_l; | |
2186 | if (e->shift_l != e->shift_r) { | |
2187 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2188 | return -EINVAL; | |
2189 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2190 | mask |= e->mask << e->shift_r; | |
2191 | } | |
2192 | ||
6c508c62 | 2193 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2194 | } |
2195 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2196 | ||
db2a4165 FM |
2197 | /** |
2198 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2199 | * @kcontrol: mixer control | |
2200 | * @uinfo: control element information | |
2201 | * | |
2202 | * Callback to provide information about an external enumerated | |
2203 | * single mixer. | |
2204 | * | |
2205 | * Returns 0 for success. | |
2206 | */ | |
2207 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2208 | struct snd_ctl_elem_info *uinfo) | |
2209 | { | |
2210 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2211 | ||
2212 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2213 | uinfo->count = 1; | |
f8ba0b7b | 2214 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2215 | |
f8ba0b7b JS |
2216 | if (uinfo->value.enumerated.item > e->max - 1) |
2217 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2218 | strcpy(uinfo->value.enumerated.name, |
2219 | e->texts[uinfo->value.enumerated.item]); | |
2220 | return 0; | |
2221 | } | |
2222 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2223 | ||
2224 | /** | |
2225 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2226 | * @kcontrol: mixer control | |
2227 | * @uinfo: control element information | |
2228 | * | |
2229 | * Callback to provide information about a single external mixer control. | |
2230 | * | |
2231 | * Returns 0 for success. | |
2232 | */ | |
2233 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2234 | struct snd_ctl_elem_info *uinfo) | |
2235 | { | |
a7a4ac86 PZ |
2236 | int max = kcontrol->private_value; |
2237 | ||
fd5dfad9 | 2238 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2239 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2240 | else | |
2241 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2242 | |
db2a4165 FM |
2243 | uinfo->count = 1; |
2244 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2245 | uinfo->value.integer.max = max; |
db2a4165 FM |
2246 | return 0; |
2247 | } | |
2248 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2249 | ||
db2a4165 FM |
2250 | /** |
2251 | * snd_soc_info_volsw - single mixer info callback | |
2252 | * @kcontrol: mixer control | |
2253 | * @uinfo: control element information | |
2254 | * | |
2255 | * Callback to provide information about a single mixer control. | |
2256 | * | |
2257 | * Returns 0 for success. | |
2258 | */ | |
2259 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2260 | struct snd_ctl_elem_info *uinfo) | |
2261 | { | |
4eaa9819 JS |
2262 | struct soc_mixer_control *mc = |
2263 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2264 | int platform_max; |
762b8df7 | 2265 | unsigned int shift = mc->shift; |
815ecf8d | 2266 | unsigned int rshift = mc->rshift; |
db2a4165 | 2267 | |
d11bb4a9 PU |
2268 | if (!mc->platform_max) |
2269 | mc->platform_max = mc->max; | |
2270 | platform_max = mc->platform_max; | |
2271 | ||
2272 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2273 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2274 | else | |
2275 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2276 | ||
db2a4165 FM |
2277 | uinfo->count = shift == rshift ? 1 : 2; |
2278 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2279 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2280 | return 0; |
2281 | } | |
2282 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2283 | ||
2284 | /** | |
2285 | * snd_soc_get_volsw - single mixer get callback | |
2286 | * @kcontrol: mixer control | |
ac11a2b3 | 2287 | * @ucontrol: control element information |
db2a4165 FM |
2288 | * |
2289 | * Callback to get the value of a single mixer control. | |
2290 | * | |
2291 | * Returns 0 for success. | |
2292 | */ | |
2293 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2294 | struct snd_ctl_elem_value *ucontrol) | |
2295 | { | |
4eaa9819 JS |
2296 | struct soc_mixer_control *mc = |
2297 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2298 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2299 | unsigned int reg = mc->reg; |
2300 | unsigned int shift = mc->shift; | |
2301 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2302 | int max = mc->max; |
815ecf8d JS |
2303 | unsigned int mask = (1 << fls(max)) - 1; |
2304 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2305 | |
2306 | ucontrol->value.integer.value[0] = | |
2307 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2308 | if (shift != rshift) | |
2309 | ucontrol->value.integer.value[1] = | |
2310 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2311 | if (invert) { | |
2312 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2313 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2314 | if (shift != rshift) |
2315 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2316 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2317 | } |
2318 | ||
2319 | return 0; | |
2320 | } | |
2321 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2322 | ||
2323 | /** | |
2324 | * snd_soc_put_volsw - single mixer put callback | |
2325 | * @kcontrol: mixer control | |
ac11a2b3 | 2326 | * @ucontrol: control element information |
db2a4165 FM |
2327 | * |
2328 | * Callback to set the value of a single mixer control. | |
2329 | * | |
2330 | * Returns 0 for success. | |
2331 | */ | |
2332 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2333 | struct snd_ctl_elem_value *ucontrol) | |
2334 | { | |
4eaa9819 JS |
2335 | struct soc_mixer_control *mc = |
2336 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2337 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2338 | unsigned int reg = mc->reg; |
2339 | unsigned int shift = mc->shift; | |
2340 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2341 | int max = mc->max; |
815ecf8d JS |
2342 | unsigned int mask = (1 << fls(max)) - 1; |
2343 | unsigned int invert = mc->invert; | |
46f5822f | 2344 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2345 | |
2346 | val = (ucontrol->value.integer.value[0] & mask); | |
2347 | if (invert) | |
a7a4ac86 | 2348 | val = max - val; |
db2a4165 FM |
2349 | val_mask = mask << shift; |
2350 | val = val << shift; | |
2351 | if (shift != rshift) { | |
2352 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2353 | if (invert) | |
a7a4ac86 | 2354 | val2 = max - val2; |
db2a4165 FM |
2355 | val_mask |= mask << rshift; |
2356 | val |= val2 << rshift; | |
2357 | } | |
6c508c62 | 2358 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2359 | } |
2360 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2361 | ||
2362 | /** | |
2363 | * snd_soc_info_volsw_2r - double mixer info callback | |
2364 | * @kcontrol: mixer control | |
2365 | * @uinfo: control element information | |
2366 | * | |
2367 | * Callback to provide information about a double mixer control that | |
2368 | * spans 2 codec registers. | |
2369 | * | |
2370 | * Returns 0 for success. | |
2371 | */ | |
2372 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2373 | struct snd_ctl_elem_info *uinfo) | |
2374 | { | |
4eaa9819 JS |
2375 | struct soc_mixer_control *mc = |
2376 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2377 | int platform_max; |
a7a4ac86 | 2378 | |
d11bb4a9 PU |
2379 | if (!mc->platform_max) |
2380 | mc->platform_max = mc->max; | |
2381 | platform_max = mc->platform_max; | |
2382 | ||
2383 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2384 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2385 | else | |
2386 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2387 | |
db2a4165 FM |
2388 | uinfo->count = 2; |
2389 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2390 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2391 | return 0; |
2392 | } | |
2393 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2394 | ||
2395 | /** | |
2396 | * snd_soc_get_volsw_2r - double mixer get callback | |
2397 | * @kcontrol: mixer control | |
ac11a2b3 | 2398 | * @ucontrol: control element information |
db2a4165 FM |
2399 | * |
2400 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2401 | * | |
2402 | * Returns 0 for success. | |
2403 | */ | |
2404 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2405 | struct snd_ctl_elem_value *ucontrol) | |
2406 | { | |
4eaa9819 JS |
2407 | struct soc_mixer_control *mc = |
2408 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2409 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2410 | unsigned int reg = mc->reg; |
2411 | unsigned int reg2 = mc->rreg; | |
2412 | unsigned int shift = mc->shift; | |
4eaa9819 | 2413 | int max = mc->max; |
46f5822f | 2414 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2415 | unsigned int invert = mc->invert; |
db2a4165 FM |
2416 | |
2417 | ucontrol->value.integer.value[0] = | |
2418 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2419 | ucontrol->value.integer.value[1] = | |
2420 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2421 | if (invert) { | |
2422 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2423 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2424 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2425 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2426 | } |
2427 | ||
2428 | return 0; | |
2429 | } | |
2430 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2431 | ||
2432 | /** | |
2433 | * snd_soc_put_volsw_2r - double mixer set callback | |
2434 | * @kcontrol: mixer control | |
ac11a2b3 | 2435 | * @ucontrol: control element information |
db2a4165 FM |
2436 | * |
2437 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2438 | * | |
2439 | * Returns 0 for success. | |
2440 | */ | |
2441 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2442 | struct snd_ctl_elem_value *ucontrol) | |
2443 | { | |
4eaa9819 JS |
2444 | struct soc_mixer_control *mc = |
2445 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2446 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2447 | unsigned int reg = mc->reg; |
2448 | unsigned int reg2 = mc->rreg; | |
2449 | unsigned int shift = mc->shift; | |
4eaa9819 | 2450 | int max = mc->max; |
815ecf8d JS |
2451 | unsigned int mask = (1 << fls(max)) - 1; |
2452 | unsigned int invert = mc->invert; | |
db2a4165 | 2453 | int err; |
46f5822f | 2454 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2455 | |
2456 | val_mask = mask << shift; | |
2457 | val = (ucontrol->value.integer.value[0] & mask); | |
2458 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2459 | ||
2460 | if (invert) { | |
a7a4ac86 PZ |
2461 | val = max - val; |
2462 | val2 = max - val2; | |
db2a4165 FM |
2463 | } |
2464 | ||
2465 | val = val << shift; | |
2466 | val2 = val2 << shift; | |
2467 | ||
6c508c62 | 2468 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2469 | if (err < 0) |
db2a4165 FM |
2470 | return err; |
2471 | ||
6c508c62 | 2472 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2473 | return err; |
2474 | } | |
2475 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2476 | ||
e13ac2e9 MB |
2477 | /** |
2478 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2479 | * @kcontrol: mixer control | |
2480 | * @uinfo: control element information | |
2481 | * | |
2482 | * Callback to provide information about a signed mixer control. | |
2483 | * | |
2484 | * Returns 0 for success. | |
2485 | */ | |
2486 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2487 | struct snd_ctl_elem_info *uinfo) | |
2488 | { | |
4eaa9819 JS |
2489 | struct soc_mixer_control *mc = |
2490 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2491 | int platform_max; |
4eaa9819 | 2492 | int min = mc->min; |
e13ac2e9 | 2493 | |
d11bb4a9 PU |
2494 | if (!mc->platform_max) |
2495 | mc->platform_max = mc->max; | |
2496 | platform_max = mc->platform_max; | |
2497 | ||
e13ac2e9 MB |
2498 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2499 | uinfo->count = 2; | |
2500 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2501 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2502 | return 0; |
2503 | } | |
2504 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2505 | ||
2506 | /** | |
2507 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2508 | * @kcontrol: mixer control | |
ac11a2b3 | 2509 | * @ucontrol: control element information |
e13ac2e9 MB |
2510 | * |
2511 | * Callback to get the value of a signed mixer control. | |
2512 | * | |
2513 | * Returns 0 for success. | |
2514 | */ | |
2515 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2516 | struct snd_ctl_elem_value *ucontrol) | |
2517 | { | |
4eaa9819 JS |
2518 | struct soc_mixer_control *mc = |
2519 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2520 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2521 | unsigned int reg = mc->reg; |
4eaa9819 | 2522 | int min = mc->min; |
e13ac2e9 MB |
2523 | int val = snd_soc_read(codec, reg); |
2524 | ||
2525 | ucontrol->value.integer.value[0] = | |
2526 | ((signed char)(val & 0xff))-min; | |
2527 | ucontrol->value.integer.value[1] = | |
2528 | ((signed char)((val >> 8) & 0xff))-min; | |
2529 | return 0; | |
2530 | } | |
2531 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2532 | ||
2533 | /** | |
2534 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2535 | * @kcontrol: mixer control | |
ac11a2b3 | 2536 | * @ucontrol: control element information |
e13ac2e9 MB |
2537 | * |
2538 | * Callback to set the value of a signed mixer control. | |
2539 | * | |
2540 | * Returns 0 for success. | |
2541 | */ | |
2542 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2543 | struct snd_ctl_elem_value *ucontrol) | |
2544 | { | |
4eaa9819 JS |
2545 | struct soc_mixer_control *mc = |
2546 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2547 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2548 | unsigned int reg = mc->reg; |
4eaa9819 | 2549 | int min = mc->min; |
46f5822f | 2550 | unsigned int val; |
e13ac2e9 MB |
2551 | |
2552 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2553 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2554 | ||
6c508c62 | 2555 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2556 | } |
2557 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2558 | ||
637d3847 PU |
2559 | /** |
2560 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2561 | * | |
2562 | * @codec: where to look for the control | |
2563 | * @name: Name of the control | |
2564 | * @max: new maximum limit | |
2565 | * | |
2566 | * Return 0 for success, else error. | |
2567 | */ | |
2568 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2569 | const char *name, int max) | |
2570 | { | |
f0fba2ad | 2571 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2572 | struct snd_kcontrol *kctl; |
2573 | struct soc_mixer_control *mc; | |
2574 | int found = 0; | |
2575 | int ret = -EINVAL; | |
2576 | ||
2577 | /* Sanity check for name and max */ | |
2578 | if (unlikely(!name || max <= 0)) | |
2579 | return -EINVAL; | |
2580 | ||
2581 | list_for_each_entry(kctl, &card->controls, list) { | |
2582 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2583 | found = 1; | |
2584 | break; | |
2585 | } | |
2586 | } | |
2587 | if (found) { | |
2588 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2589 | if (max <= mc->max) { | |
d11bb4a9 | 2590 | mc->platform_max = max; |
637d3847 PU |
2591 | ret = 0; |
2592 | } | |
2593 | } | |
2594 | return ret; | |
2595 | } | |
2596 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2597 | ||
b6f4bb38 | 2598 | /** |
2599 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2600 | * mixer info callback | |
2601 | * @kcontrol: mixer control | |
2602 | * @uinfo: control element information | |
2603 | * | |
2604 | * Returns 0 for success. | |
2605 | */ | |
2606 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2607 | struct snd_ctl_elem_info *uinfo) | |
2608 | { | |
2609 | struct soc_mixer_control *mc = | |
2610 | (struct soc_mixer_control *)kcontrol->private_value; | |
2611 | int max = mc->max; | |
2612 | int min = mc->min; | |
2613 | ||
2614 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2615 | uinfo->count = 2; | |
2616 | uinfo->value.integer.min = 0; | |
2617 | uinfo->value.integer.max = max-min; | |
2618 | ||
2619 | return 0; | |
2620 | } | |
2621 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2622 | ||
2623 | /** | |
2624 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2625 | * mixer get callback | |
2626 | * @kcontrol: mixer control | |
2627 | * @uinfo: control element information | |
2628 | * | |
2629 | * Returns 0 for success. | |
2630 | */ | |
2631 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2632 | struct snd_ctl_elem_value *ucontrol) | |
2633 | { | |
2634 | struct soc_mixer_control *mc = | |
2635 | (struct soc_mixer_control *)kcontrol->private_value; | |
2636 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2637 | unsigned int mask = (1<<mc->shift)-1; | |
2638 | int min = mc->min; | |
2639 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2640 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2641 | ||
20630c7f SL |
2642 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2643 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2644 | return 0; |
2645 | } | |
2646 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2647 | ||
2648 | /** | |
2649 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2650 | * mixer put callback | |
2651 | * @kcontrol: mixer control | |
2652 | * @uinfo: control element information | |
2653 | * | |
2654 | * Returns 0 for success. | |
2655 | */ | |
2656 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2657 | struct snd_ctl_elem_value *ucontrol) | |
2658 | { | |
2659 | struct soc_mixer_control *mc = | |
2660 | (struct soc_mixer_control *)kcontrol->private_value; | |
2661 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2662 | unsigned int mask = (1<<mc->shift)-1; | |
2663 | int min = mc->min; | |
2664 | int ret; | |
2665 | unsigned int val, valr, oval, ovalr; | |
2666 | ||
2667 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2668 | val &= mask; | |
2669 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2670 | valr &= mask; | |
2671 | ||
2672 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2673 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2674 | ||
2675 | ret = 0; | |
2676 | if (oval != val) { | |
2677 | ret = snd_soc_write(codec, mc->reg, val); | |
2678 | if (ret < 0) | |
f1df5aec | 2679 | return ret; |
b6f4bb38 | 2680 | } |
2681 | if (ovalr != valr) { | |
2682 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2683 | if (ret < 0) | |
f1df5aec | 2684 | return ret; |
b6f4bb38 | 2685 | } |
2686 | ||
2687 | return 0; | |
2688 | } | |
2689 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2690 | ||
8c6529db LG |
2691 | /** |
2692 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2693 | * @dai: DAI | |
2694 | * @clk_id: DAI specific clock ID | |
2695 | * @freq: new clock frequency in Hz | |
2696 | * @dir: new clock direction - input/output. | |
2697 | * | |
2698 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2699 | */ | |
2700 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2701 | unsigned int freq, int dir) | |
2702 | { | |
f0fba2ad LG |
2703 | if (dai->driver && dai->driver->ops->set_sysclk) |
2704 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2705 | else |
2706 | return -EINVAL; | |
2707 | } | |
2708 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2709 | ||
2710 | /** | |
2711 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2712 | * @dai: DAI | |
ac11a2b3 | 2713 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2714 | * @div: new clock divisor. |
2715 | * | |
2716 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2717 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2718 | * and frame clocks as low as possible to save system power. | |
2719 | */ | |
2720 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2721 | int div_id, int div) | |
2722 | { | |
f0fba2ad LG |
2723 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2724 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2725 | else |
2726 | return -EINVAL; | |
2727 | } | |
2728 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2729 | ||
2730 | /** | |
2731 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2732 | * @dai: DAI | |
2733 | * @pll_id: DAI specific PLL ID | |
85488037 | 2734 | * @source: DAI specific source for the PLL |
8c6529db LG |
2735 | * @freq_in: PLL input clock frequency in Hz |
2736 | * @freq_out: requested PLL output clock frequency in Hz | |
2737 | * | |
2738 | * Configures and enables PLL to generate output clock based on input clock. | |
2739 | */ | |
85488037 MB |
2740 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2741 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2742 | { |
f0fba2ad LG |
2743 | if (dai->driver && dai->driver->ops->set_pll) |
2744 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2745 | freq_in, freq_out); |
8c6529db LG |
2746 | else |
2747 | return -EINVAL; | |
2748 | } | |
2749 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2750 | ||
2751 | /** | |
2752 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2753 | * @dai: DAI | |
8c6529db LG |
2754 | * @fmt: SND_SOC_DAIFMT_ format value. |
2755 | * | |
2756 | * Configures the DAI hardware format and clocking. | |
2757 | */ | |
2758 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2759 | { | |
f0fba2ad LG |
2760 | if (dai->driver && dai->driver->ops->set_fmt) |
2761 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2762 | else |
2763 | return -EINVAL; | |
2764 | } | |
2765 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2766 | ||
2767 | /** | |
2768 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2769 | * @dai: DAI | |
a5479e38 DR |
2770 | * @tx_mask: bitmask representing active TX slots. |
2771 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2772 | * @slots: Number of slots in use. |
a5479e38 | 2773 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2774 | * |
2775 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2776 | * specific. | |
2777 | */ | |
2778 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2779 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2780 | { |
f0fba2ad LG |
2781 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2782 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2783 | slots, slot_width); |
8c6529db LG |
2784 | else |
2785 | return -EINVAL; | |
2786 | } | |
2787 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2788 | ||
472df3cb BS |
2789 | /** |
2790 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2791 | * @dai: DAI | |
2792 | * @tx_num: how many TX channels | |
2793 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2794 | * 0~num-1 uses | |
2795 | * @rx_num: how many RX channels | |
2796 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2797 | * 0~num-1 uses | |
2798 | * | |
2799 | * configure the relationship between channel number and TDM slot number. | |
2800 | */ | |
2801 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2802 | unsigned int tx_num, unsigned int *tx_slot, | |
2803 | unsigned int rx_num, unsigned int *rx_slot) | |
2804 | { | |
f0fba2ad LG |
2805 | if (dai->driver && dai->driver->ops->set_channel_map) |
2806 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2807 | rx_num, rx_slot); |
2808 | else | |
2809 | return -EINVAL; | |
2810 | } | |
2811 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2812 | ||
8c6529db LG |
2813 | /** |
2814 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2815 | * @dai: DAI | |
2816 | * @tristate: tristate enable | |
2817 | * | |
2818 | * Tristates the DAI so that others can use it. | |
2819 | */ | |
2820 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2821 | { | |
f0fba2ad LG |
2822 | if (dai->driver && dai->driver->ops->set_tristate) |
2823 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2824 | else |
2825 | return -EINVAL; | |
2826 | } | |
2827 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2828 | ||
2829 | /** | |
2830 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2831 | * @dai: DAI | |
2832 | * @mute: mute enable | |
2833 | * | |
2834 | * Mutes the DAI DAC. | |
2835 | */ | |
2836 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2837 | { | |
f0fba2ad LG |
2838 | if (dai->driver && dai->driver->ops->digital_mute) |
2839 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2840 | else |
2841 | return -EINVAL; | |
2842 | } | |
2843 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2844 | ||
c5af3a2e MB |
2845 | /** |
2846 | * snd_soc_register_card - Register a card with the ASoC core | |
2847 | * | |
ac11a2b3 | 2848 | * @card: Card to register |
c5af3a2e MB |
2849 | * |
2850 | * Note that currently this is an internal only function: it will be | |
2851 | * exposed to machine drivers after further backporting of ASoC v2 | |
2852 | * registration APIs. | |
2853 | */ | |
2854 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2855 | { | |
f0fba2ad LG |
2856 | int i; |
2857 | ||
c5af3a2e MB |
2858 | if (!card->name || !card->dev) |
2859 | return -EINVAL; | |
2860 | ||
f0fba2ad LG |
2861 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links, |
2862 | GFP_KERNEL); | |
2863 | if (card->rtd == NULL) | |
2864 | return -ENOMEM; | |
2865 | ||
2866 | for (i = 0; i < card->num_links; i++) | |
2867 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2868 | ||
c5af3a2e MB |
2869 | INIT_LIST_HEAD(&card->list); |
2870 | card->instantiated = 0; | |
f0fba2ad | 2871 | mutex_init(&card->mutex); |
c5af3a2e MB |
2872 | |
2873 | mutex_lock(&client_mutex); | |
2874 | list_add(&card->list, &card_list); | |
435c5e25 | 2875 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2876 | mutex_unlock(&client_mutex); |
2877 | ||
2878 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2879 | ||
2880 | return 0; | |
2881 | } | |
2882 | ||
2883 | /** | |
2884 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2885 | * | |
ac11a2b3 | 2886 | * @card: Card to unregister |
c5af3a2e MB |
2887 | * |
2888 | * Note that currently this is an internal only function: it will be | |
2889 | * exposed to machine drivers after further backporting of ASoC v2 | |
2890 | * registration APIs. | |
2891 | */ | |
2892 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2893 | { | |
2894 | mutex_lock(&client_mutex); | |
2895 | list_del(&card->list); | |
2896 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2897 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2898 | ||
2899 | return 0; | |
2900 | } | |
2901 | ||
f0fba2ad LG |
2902 | /* |
2903 | * Simplify DAI link configuration by removing ".-1" from device names | |
2904 | * and sanitizing names. | |
2905 | */ | |
2906 | static inline char *fmt_single_name(struct device *dev, int *id) | |
2907 | { | |
2908 | char *found, name[NAME_SIZE]; | |
2909 | int id1, id2; | |
2910 | ||
2911 | if (dev_name(dev) == NULL) | |
2912 | return NULL; | |
2913 | ||
2914 | strncpy(name, dev_name(dev), NAME_SIZE); | |
2915 | ||
2916 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2917 | found = strstr(name, dev->driver->name); | |
2918 | if (found) { | |
2919 | /* get ID */ | |
2920 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2921 | ||
2922 | /* discard ID from name if ID == -1 */ | |
2923 | if (*id == -1) | |
2924 | found[strlen(dev->driver->name)] = '\0'; | |
2925 | } | |
2926 | ||
2927 | } else { | |
2928 | /* I2C component devices are named "bus-addr" */ | |
2929 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2930 | char tmp[NAME_SIZE]; | |
2931 | ||
2932 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 2933 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
2934 | |
2935 | /* sanitize component name for DAI link creation */ | |
2936 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
2937 | strncpy(name, tmp, NAME_SIZE); | |
2938 | } else | |
2939 | *id = 0; | |
2940 | } | |
2941 | ||
2942 | return kstrdup(name, GFP_KERNEL); | |
2943 | } | |
2944 | ||
2945 | /* | |
2946 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2947 | * any ".-1" and using the DAI name (instead of device name). | |
2948 | */ | |
2949 | static inline char *fmt_multiple_name(struct device *dev, | |
2950 | struct snd_soc_dai_driver *dai_drv) | |
2951 | { | |
2952 | if (dai_drv->name == NULL) { | |
2953 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2954 | dev_name(dev)); | |
2955 | return NULL; | |
2956 | } | |
2957 | ||
2958 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2959 | } | |
2960 | ||
9115171a MB |
2961 | /** |
2962 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2963 | * | |
ac11a2b3 | 2964 | * @dai: DAI to register |
9115171a | 2965 | */ |
f0fba2ad LG |
2966 | int snd_soc_register_dai(struct device *dev, |
2967 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2968 | { |
f0fba2ad LG |
2969 | struct snd_soc_dai *dai; |
2970 | ||
2971 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2972 | |
f0fba2ad LG |
2973 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2974 | if (dai == NULL) | |
2975 | return -ENOMEM; | |
9115171a | 2976 | |
f0fba2ad LG |
2977 | /* create DAI component name */ |
2978 | dai->name = fmt_single_name(dev, &dai->id); | |
2979 | if (dai->name == NULL) { | |
2980 | kfree(dai); | |
2981 | return -ENOMEM; | |
2982 | } | |
6335d055 | 2983 | |
f0fba2ad LG |
2984 | dai->dev = dev; |
2985 | dai->driver = dai_drv; | |
2986 | if (!dai->driver->ops) | |
2987 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
2988 | |
2989 | mutex_lock(&client_mutex); | |
2990 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2991 | snd_soc_instantiate_cards(); |
9115171a MB |
2992 | mutex_unlock(&client_mutex); |
2993 | ||
2994 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2995 | ||
2996 | return 0; | |
2997 | } | |
2998 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2999 | ||
3000 | /** | |
3001 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3002 | * | |
ac11a2b3 | 3003 | * @dai: DAI to unregister |
9115171a | 3004 | */ |
f0fba2ad | 3005 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3006 | { |
f0fba2ad LG |
3007 | struct snd_soc_dai *dai; |
3008 | ||
3009 | list_for_each_entry(dai, &dai_list, list) { | |
3010 | if (dev == dai->dev) | |
3011 | goto found; | |
3012 | } | |
3013 | return; | |
3014 | ||
3015 | found: | |
9115171a MB |
3016 | mutex_lock(&client_mutex); |
3017 | list_del(&dai->list); | |
3018 | mutex_unlock(&client_mutex); | |
3019 | ||
3020 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3021 | kfree(dai->name); |
3022 | kfree(dai); | |
9115171a MB |
3023 | } |
3024 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3025 | ||
3026 | /** | |
3027 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3028 | * | |
ac11a2b3 MB |
3029 | * @dai: Array of DAIs to register |
3030 | * @count: Number of DAIs | |
9115171a | 3031 | */ |
f0fba2ad LG |
3032 | int snd_soc_register_dais(struct device *dev, |
3033 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3034 | { |
f0fba2ad LG |
3035 | struct snd_soc_dai *dai; |
3036 | int i, ret = 0; | |
3037 | ||
720ffa4c | 3038 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3039 | |
3040 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3041 | |
3042 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
3043 | if (dai == NULL) | |
3044 | return -ENOMEM; | |
3045 | ||
3046 | /* create DAI component name */ | |
3047 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3048 | if (dai->name == NULL) { | |
3049 | kfree(dai); | |
3050 | ret = -EINVAL; | |
9115171a | 3051 | goto err; |
f0fba2ad LG |
3052 | } |
3053 | ||
3054 | dai->dev = dev; | |
f0fba2ad | 3055 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3056 | if (dai->driver->id) |
3057 | dai->id = dai->driver->id; | |
3058 | else | |
3059 | dai->id = i; | |
f0fba2ad LG |
3060 | if (!dai->driver->ops) |
3061 | dai->driver->ops = &null_dai_ops; | |
3062 | ||
3063 | mutex_lock(&client_mutex); | |
3064 | list_add(&dai->list, &dai_list); | |
3065 | mutex_unlock(&client_mutex); | |
3066 | ||
3067 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3068 | } |
3069 | ||
f0fba2ad | 3070 | snd_soc_instantiate_cards(); |
9115171a MB |
3071 | return 0; |
3072 | ||
3073 | err: | |
3074 | for (i--; i >= 0; i--) | |
f0fba2ad | 3075 | snd_soc_unregister_dai(dev); |
9115171a MB |
3076 | |
3077 | return ret; | |
3078 | } | |
3079 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3080 | ||
3081 | /** | |
3082 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3083 | * | |
ac11a2b3 MB |
3084 | * @dai: Array of DAIs to unregister |
3085 | * @count: Number of DAIs | |
9115171a | 3086 | */ |
f0fba2ad | 3087 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3088 | { |
3089 | int i; | |
3090 | ||
3091 | for (i = 0; i < count; i++) | |
f0fba2ad | 3092 | snd_soc_unregister_dai(dev); |
9115171a MB |
3093 | } |
3094 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3095 | ||
12a48a8c MB |
3096 | /** |
3097 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3098 | * | |
ac11a2b3 | 3099 | * @platform: platform to register |
12a48a8c | 3100 | */ |
f0fba2ad LG |
3101 | int snd_soc_register_platform(struct device *dev, |
3102 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3103 | { |
f0fba2ad LG |
3104 | struct snd_soc_platform *platform; |
3105 | ||
3106 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
12a48a8c | 3107 | |
f0fba2ad LG |
3108 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); |
3109 | if (platform == NULL) | |
3110 | return -ENOMEM; | |
3111 | ||
3112 | /* create platform component name */ | |
3113 | platform->name = fmt_single_name(dev, &platform->id); | |
3114 | if (platform->name == NULL) { | |
3115 | kfree(platform); | |
3116 | return -ENOMEM; | |
3117 | } | |
12a48a8c | 3118 | |
f0fba2ad LG |
3119 | platform->dev = dev; |
3120 | platform->driver = platform_drv; | |
12a48a8c MB |
3121 | |
3122 | mutex_lock(&client_mutex); | |
3123 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3124 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3125 | mutex_unlock(&client_mutex); |
3126 | ||
3127 | pr_debug("Registered platform '%s'\n", platform->name); | |
3128 | ||
3129 | return 0; | |
3130 | } | |
3131 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3132 | ||
3133 | /** | |
3134 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3135 | * | |
ac11a2b3 | 3136 | * @platform: platform to unregister |
12a48a8c | 3137 | */ |
f0fba2ad | 3138 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3139 | { |
f0fba2ad LG |
3140 | struct snd_soc_platform *platform; |
3141 | ||
3142 | list_for_each_entry(platform, &platform_list, list) { | |
3143 | if (dev == platform->dev) | |
3144 | goto found; | |
3145 | } | |
3146 | return; | |
3147 | ||
3148 | found: | |
12a48a8c MB |
3149 | mutex_lock(&client_mutex); |
3150 | list_del(&platform->list); | |
3151 | mutex_unlock(&client_mutex); | |
3152 | ||
3153 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3154 | kfree(platform->name); |
3155 | kfree(platform); | |
12a48a8c MB |
3156 | } |
3157 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3158 | ||
151ab22c MB |
3159 | static u64 codec_format_map[] = { |
3160 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3161 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3162 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3163 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3164 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3165 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3166 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3167 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3168 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3169 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3170 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3171 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3172 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3173 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3174 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3175 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3176 | }; | |
3177 | ||
3178 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3179 | * the endianness of the data but we're using the CPU format | |
3180 | * definitions which do need to include endianness so we ensure that | |
3181 | * codec DAIs always have both big and little endian variants set. | |
3182 | */ | |
3183 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3184 | { | |
3185 | int i; | |
3186 | ||
3187 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3188 | if (stream->formats & codec_format_map[i]) | |
3189 | stream->formats |= codec_format_map[i]; | |
3190 | } | |
3191 | ||
0d0cf00a MB |
3192 | /** |
3193 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3194 | * | |
ac11a2b3 | 3195 | * @codec: codec to register |
0d0cf00a | 3196 | */ |
f0fba2ad LG |
3197 | int snd_soc_register_codec(struct device *dev, |
3198 | struct snd_soc_codec_driver *codec_drv, | |
3199 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3200 | { |
f0fba2ad LG |
3201 | struct snd_soc_codec *codec; |
3202 | int ret, i; | |
151ab22c | 3203 | |
f0fba2ad LG |
3204 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3205 | ||
3206 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3207 | if (codec == NULL) | |
3208 | return -ENOMEM; | |
0d0cf00a | 3209 | |
f0fba2ad LG |
3210 | /* create CODEC component name */ |
3211 | codec->name = fmt_single_name(dev, &codec->id); | |
3212 | if (codec->name == NULL) { | |
3213 | kfree(codec); | |
3214 | return -ENOMEM; | |
3215 | } | |
0d0cf00a | 3216 | |
f0fba2ad LG |
3217 | /* allocate CODEC register cache */ |
3218 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
0d0cf00a | 3219 | |
f0fba2ad LG |
3220 | if (codec_drv->reg_cache_default) |
3221 | codec->reg_cache = kmemdup(codec_drv->reg_cache_default, | |
3222 | codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL); | |
3223 | else | |
3224 | codec->reg_cache = kzalloc(codec_drv->reg_cache_size * | |
3225 | codec_drv->reg_word_size, GFP_KERNEL); | |
0d0cf00a | 3226 | |
f0fba2ad LG |
3227 | if (codec->reg_cache == NULL) { |
3228 | kfree(codec->name); | |
3229 | kfree(codec); | |
3230 | return -ENOMEM; | |
3231 | } | |
151ab22c MB |
3232 | } |
3233 | ||
f0fba2ad LG |
3234 | codec->dev = dev; |
3235 | codec->driver = codec_drv; | |
3236 | codec->bias_level = SND_SOC_BIAS_OFF; | |
3237 | codec->num_dai = num_dai; | |
3238 | mutex_init(&codec->mutex); | |
3239 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
3240 | INIT_LIST_HEAD(&codec->dapm_paths); | |
3241 | ||
3242 | for (i = 0; i < num_dai; i++) { | |
3243 | fixup_codec_formats(&dai_drv[i].playback); | |
3244 | fixup_codec_formats(&dai_drv[i].capture); | |
3245 | } | |
3246 | ||
26b01ccd MB |
3247 | /* register any DAIs */ |
3248 | if (num_dai) { | |
3249 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3250 | if (ret < 0) | |
f0fba2ad | 3251 | goto error; |
151ab22c MB |
3252 | } |
3253 | ||
0d0cf00a MB |
3254 | mutex_lock(&client_mutex); |
3255 | list_add(&codec->list, &codec_list); | |
3256 | snd_soc_instantiate_cards(); | |
3257 | mutex_unlock(&client_mutex); | |
3258 | ||
3259 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3260 | return 0; |
f0fba2ad LG |
3261 | |
3262 | error: | |
3263 | for (i--; i >= 0; i--) | |
3264 | snd_soc_unregister_dai(dev); | |
3265 | ||
3266 | if (codec->reg_cache) | |
3267 | kfree(codec->reg_cache); | |
3268 | kfree(codec->name); | |
3269 | kfree(codec); | |
3270 | return ret; | |
0d0cf00a MB |
3271 | } |
3272 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3273 | ||
3274 | /** | |
3275 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3276 | * | |
ac11a2b3 | 3277 | * @codec: codec to unregister |
0d0cf00a | 3278 | */ |
f0fba2ad | 3279 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3280 | { |
f0fba2ad LG |
3281 | struct snd_soc_codec *codec; |
3282 | int i; | |
3283 | ||
3284 | list_for_each_entry(codec, &codec_list, list) { | |
3285 | if (dev == codec->dev) | |
3286 | goto found; | |
3287 | } | |
3288 | return; | |
3289 | ||
3290 | found: | |
26b01ccd MB |
3291 | if (codec->num_dai) |
3292 | for (i = 0; i < codec->num_dai; i++) | |
3293 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3294 | |
0d0cf00a MB |
3295 | mutex_lock(&client_mutex); |
3296 | list_del(&codec->list); | |
3297 | mutex_unlock(&client_mutex); | |
3298 | ||
3299 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad LG |
3300 | |
3301 | if (codec->reg_cache) | |
3302 | kfree(codec->reg_cache); | |
1aafcd4d | 3303 | kfree(codec->name); |
f0fba2ad | 3304 | kfree(codec); |
0d0cf00a MB |
3305 | } |
3306 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3307 | ||
c9b3a40f | 3308 | static int __init snd_soc_init(void) |
db2a4165 | 3309 | { |
384c89e2 MB |
3310 | #ifdef CONFIG_DEBUG_FS |
3311 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3312 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3313 | printk(KERN_WARNING | |
3314 | "ASoC: Failed to create debugfs directory\n"); | |
3315 | debugfs_root = NULL; | |
3316 | } | |
c3c5a19a MB |
3317 | |
3318 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3319 | &codec_list_fops)) | |
3320 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3321 | ||
f3208780 MB |
3322 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3323 | &dai_list_fops)) | |
3324 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3325 | |
3326 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3327 | &platform_list_fops)) | |
3328 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3329 | #endif |
3330 | ||
db2a4165 FM |
3331 | return platform_driver_register(&soc_driver); |
3332 | } | |
4abe8e16 | 3333 | module_init(snd_soc_init); |
db2a4165 | 3334 | |
7d8c16a6 | 3335 | static void __exit snd_soc_exit(void) |
db2a4165 | 3336 | { |
384c89e2 MB |
3337 | #ifdef CONFIG_DEBUG_FS |
3338 | debugfs_remove_recursive(debugfs_root); | |
3339 | #endif | |
3ff3f64b | 3340 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3341 | } |
db2a4165 FM |
3342 | module_exit(snd_soc_exit); |
3343 | ||
3344 | /* Module information */ | |
d331124d | 3345 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3346 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3347 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3348 | MODULE_ALIAS("platform:soc-audio"); |