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, | |
233 | }; | |
234 | ||
235 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
236 | { | |
237 | char codec_root[128]; | |
238 | ||
239 | if (codec->dev) | |
240 | snprintf(codec_root, sizeof(codec_root), | |
241 | "%s.%s", codec->name, dev_name(codec->dev)); | |
242 | else | |
243 | snprintf(codec_root, sizeof(codec_root), | |
244 | "%s", codec->name); | |
245 | ||
246 | codec->debugfs_codec_root = debugfs_create_dir(codec_root, | |
247 | debugfs_root); | |
248 | if (!codec->debugfs_codec_root) { | |
249 | printk(KERN_WARNING | |
250 | "ASoC: Failed to create codec debugfs directory\n"); | |
251 | return; | |
252 | } | |
253 | ||
254 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
255 | codec->debugfs_codec_root, | |
256 | codec, &codec_reg_fops); | |
257 | if (!codec->debugfs_reg) | |
258 | printk(KERN_WARNING | |
259 | "ASoC: Failed to create codec register debugfs file\n"); | |
260 | ||
261 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744, | |
262 | codec->debugfs_codec_root, | |
263 | &codec->pop_time); | |
264 | if (!codec->debugfs_pop_time) | |
265 | printk(KERN_WARNING | |
266 | "Failed to create pop time debugfs file\n"); | |
267 | ||
268 | codec->debugfs_dapm = debugfs_create_dir("dapm", | |
269 | codec->debugfs_codec_root); | |
270 | if (!codec->debugfs_dapm) | |
271 | printk(KERN_WARNING | |
272 | "Failed to create DAPM debugfs directory\n"); | |
273 | ||
274 | snd_soc_dapm_debugfs_init(codec); | |
275 | } | |
276 | ||
277 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
278 | { | |
279 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
280 | } | |
281 | ||
282 | #else | |
283 | ||
284 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
285 | { | |
286 | } | |
287 | ||
288 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
289 | { | |
290 | } | |
291 | #endif | |
292 | ||
db2a4165 FM |
293 | #ifdef CONFIG_SND_SOC_AC97_BUS |
294 | /* unregister ac97 codec */ | |
295 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
296 | { | |
297 | if (codec->ac97->dev.bus) | |
298 | device_unregister(&codec->ac97->dev); | |
299 | return 0; | |
300 | } | |
301 | ||
302 | /* stop no dev release warning */ | |
303 | static void soc_ac97_device_release(struct device *dev){} | |
304 | ||
305 | /* register ac97 codec to bus */ | |
306 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
307 | { | |
308 | int err; | |
309 | ||
310 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 311 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
312 | codec->ac97->dev.release = soc_ac97_device_release; |
313 | ||
bb072bf0 | 314 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 315 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
316 | err = device_register(&codec->ac97->dev); |
317 | if (err < 0) { | |
318 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
319 | codec->ac97->dev.bus = NULL; | |
320 | return err; | |
321 | } | |
322 | return 0; | |
323 | } | |
324 | #endif | |
325 | ||
06f409d7 MB |
326 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
327 | { | |
328 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
329 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
330 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
331 | int ret; |
332 | ||
f0fba2ad LG |
333 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
334 | rtd->dai_link->symmetric_rates) { | |
335 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
336 | rtd->rate); | |
06f409d7 MB |
337 | |
338 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
339 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
340 | rtd->rate, |
341 | rtd->rate); | |
06f409d7 | 342 | if (ret < 0) { |
f0fba2ad | 343 | dev_err(&rtd->dev, |
06f409d7 MB |
344 | "Unable to apply rate symmetry constraint: %d\n", ret); |
345 | return ret; | |
346 | } | |
347 | } | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
db2a4165 FM |
352 | /* |
353 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
354 | * then initialized and any private data can be allocated. This also calls | |
355 | * startup for the cpu DAI, platform, machine and codec DAI. | |
356 | */ | |
357 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
358 | { | |
359 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 360 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
361 | struct snd_soc_platform *platform = rtd->platform; |
362 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
363 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
364 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
365 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
366 | int ret = 0; |
367 | ||
368 | mutex_lock(&pcm_mutex); | |
369 | ||
370 | /* startup the audio subsystem */ | |
f0fba2ad LG |
371 | if (cpu_dai->driver->ops->startup) { |
372 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
373 | if (ret < 0) { |
374 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 375 | cpu_dai->name); |
db2a4165 FM |
376 | goto out; |
377 | } | |
378 | } | |
379 | ||
f0fba2ad LG |
380 | if (platform->driver->ops->open) { |
381 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
382 | if (ret < 0) { |
383 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
384 | goto platform_err; | |
385 | } | |
386 | } | |
387 | ||
f0fba2ad LG |
388 | if (codec_dai->driver->ops->startup) { |
389 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 390 | if (ret < 0) { |
cb666e5b LG |
391 | printk(KERN_ERR "asoc: can't open codec %s\n", |
392 | codec_dai->name); | |
393 | goto codec_dai_err; | |
db2a4165 FM |
394 | } |
395 | } | |
396 | ||
f0fba2ad LG |
397 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
398 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 399 | if (ret < 0) { |
f0fba2ad | 400 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 401 | goto machine_err; |
db2a4165 FM |
402 | } |
403 | } | |
404 | ||
db2a4165 FM |
405 | /* Check that the codec and cpu DAI's are compatible */ |
406 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
407 | runtime->hw.rate_min = | |
f0fba2ad LG |
408 | max(codec_dai_drv->playback.rate_min, |
409 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 410 | runtime->hw.rate_max = |
f0fba2ad LG |
411 | min(codec_dai_drv->playback.rate_max, |
412 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 413 | runtime->hw.channels_min = |
f0fba2ad LG |
414 | max(codec_dai_drv->playback.channels_min, |
415 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 416 | runtime->hw.channels_max = |
f0fba2ad LG |
417 | min(codec_dai_drv->playback.channels_max, |
418 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 419 | runtime->hw.formats = |
f0fba2ad | 420 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 421 | runtime->hw.rates = |
f0fba2ad LG |
422 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
423 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 424 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
425 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
426 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 427 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 428 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
429 | } else { |
430 | runtime->hw.rate_min = | |
f0fba2ad LG |
431 | max(codec_dai_drv->capture.rate_min, |
432 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 433 | runtime->hw.rate_max = |
f0fba2ad LG |
434 | min(codec_dai_drv->capture.rate_max, |
435 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 436 | runtime->hw.channels_min = |
f0fba2ad LG |
437 | max(codec_dai_drv->capture.channels_min, |
438 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 439 | runtime->hw.channels_max = |
f0fba2ad LG |
440 | min(codec_dai_drv->capture.channels_max, |
441 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 442 | runtime->hw.formats = |
f0fba2ad | 443 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 444 | runtime->hw.rates = |
f0fba2ad LG |
445 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
446 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 447 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
448 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
449 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 450 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 451 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
452 | } |
453 | ||
454 | snd_pcm_limit_hw_rates(runtime); | |
455 | if (!runtime->hw.rates) { | |
456 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 457 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 458 | goto config_err; |
db2a4165 FM |
459 | } |
460 | if (!runtime->hw.formats) { | |
461 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 462 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 463 | goto config_err; |
db2a4165 FM |
464 | } |
465 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
466 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 467 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 468 | goto config_err; |
db2a4165 FM |
469 | } |
470 | ||
06f409d7 MB |
471 | /* Symmetry only applies if we've already got an active stream. */ |
472 | if (cpu_dai->active || codec_dai->active) { | |
473 | ret = soc_pcm_apply_symmetry(substream); | |
474 | if (ret != 0) | |
bb1c0478 | 475 | goto config_err; |
06f409d7 MB |
476 | } |
477 | ||
f0fba2ad LG |
478 | pr_debug("asoc: %s <-> %s info:\n", |
479 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
480 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
481 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
482 | runtime->hw.channels_max); | |
483 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
484 | runtime->hw.rate_max); | |
db2a4165 | 485 | |
14dc5734 | 486 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
487 | cpu_dai->playback_active++; |
488 | codec_dai->playback_active++; | |
14dc5734 | 489 | } else { |
f0fba2ad LG |
490 | cpu_dai->capture_active++; |
491 | codec_dai->capture_active++; | |
14dc5734 JB |
492 | } |
493 | cpu_dai->active++; | |
494 | codec_dai->active++; | |
f0fba2ad | 495 | rtd->codec->active++; |
db2a4165 FM |
496 | mutex_unlock(&pcm_mutex); |
497 | return 0; | |
498 | ||
bb1c0478 | 499 | config_err: |
f0fba2ad LG |
500 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
501 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 502 | |
bb1c0478 | 503 | machine_err: |
f0fba2ad LG |
504 | if (codec_dai->driver->ops->shutdown) |
505 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 506 | |
cb666e5b | 507 | codec_dai_err: |
f0fba2ad LG |
508 | if (platform->driver->ops->close) |
509 | platform->driver->ops->close(substream); | |
db2a4165 FM |
510 | |
511 | platform_err: | |
f0fba2ad LG |
512 | if (cpu_dai->driver->ops->shutdown) |
513 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
514 | out: |
515 | mutex_unlock(&pcm_mutex); | |
516 | return ret; | |
517 | } | |
518 | ||
519 | /* | |
3a4fa0a2 | 520 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
521 | * This is to ensure there are no pops or clicks in between any music tracks |
522 | * due to DAPM power cycling. | |
523 | */ | |
4484bb2e | 524 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 525 | { |
f0fba2ad LG |
526 | struct snd_soc_pcm_runtime *rtd = |
527 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
528 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
529 | |
530 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
531 | |
532 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
533 | codec_dai->driver->playback.stream_name, | |
534 | codec_dai->playback_active ? "active" : "inactive", | |
535 | codec_dai->pop_wait ? "yes" : "no"); | |
536 | ||
537 | /* are we waiting on this codec DAI stream */ | |
538 | if (codec_dai->pop_wait == 1) { | |
539 | codec_dai->pop_wait = 0; | |
540 | snd_soc_dapm_stream_event(rtd, | |
541 | codec_dai->driver->playback.stream_name, | |
542 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 543 | } |
f0fba2ad | 544 | |
db2a4165 FM |
545 | mutex_unlock(&pcm_mutex); |
546 | } | |
547 | ||
548 | /* | |
549 | * Called by ALSA when a PCM substream is closed. Private data can be | |
550 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
551 | * shutdown. | |
552 | */ | |
553 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
554 | { | |
555 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
556 | struct snd_soc_platform *platform = rtd->platform; |
557 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
558 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
559 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
560 | |
561 | mutex_lock(&pcm_mutex); | |
562 | ||
14dc5734 | 563 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
564 | cpu_dai->playback_active--; |
565 | codec_dai->playback_active--; | |
14dc5734 | 566 | } else { |
f0fba2ad LG |
567 | cpu_dai->capture_active--; |
568 | codec_dai->capture_active--; | |
db2a4165 | 569 | } |
14dc5734 JB |
570 | |
571 | cpu_dai->active--; | |
572 | codec_dai->active--; | |
db2a4165 FM |
573 | codec->active--; |
574 | ||
6010b2da MB |
575 | /* Muting the DAC suppresses artifacts caused during digital |
576 | * shutdown, for example from stopping clocks. | |
577 | */ | |
578 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
579 | snd_soc_dai_digital_mute(codec_dai, 1); | |
580 | ||
f0fba2ad LG |
581 | if (cpu_dai->driver->ops->shutdown) |
582 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 583 | |
f0fba2ad LG |
584 | if (codec_dai->driver->ops->shutdown) |
585 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 586 | |
f0fba2ad LG |
587 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
588 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 589 | |
f0fba2ad LG |
590 | if (platform->driver->ops->close) |
591 | platform->driver->ops->close(substream); | |
592 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
593 | |
594 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
595 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 596 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
597 | schedule_delayed_work(&rtd->delayed_work, |
598 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
599 | } else { |
600 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
601 | snd_soc_dapm_stream_event(rtd, |
602 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 603 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
604 | } |
605 | ||
606 | mutex_unlock(&pcm_mutex); | |
607 | return 0; | |
608 | } | |
609 | ||
610 | /* | |
611 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
612 | * rate, etc. This function is non atomic and can be called multiple times, | |
613 | * it can refer to the runtime info. | |
614 | */ | |
615 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
616 | { | |
617 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
618 | struct snd_soc_platform *platform = rtd->platform; |
619 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
620 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
621 | int ret = 0; |
622 | ||
623 | mutex_lock(&pcm_mutex); | |
cb666e5b | 624 | |
f0fba2ad LG |
625 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
626 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
627 | if (ret < 0) { |
628 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
629 | goto out; | |
630 | } | |
631 | } | |
632 | ||
f0fba2ad LG |
633 | if (platform->driver->ops->prepare) { |
634 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
635 | if (ret < 0) { |
636 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 637 | goto out; |
a71a468a | 638 | } |
db2a4165 FM |
639 | } |
640 | ||
f0fba2ad LG |
641 | if (codec_dai->driver->ops->prepare) { |
642 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
643 | if (ret < 0) { |
644 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 645 | goto out; |
a71a468a | 646 | } |
db2a4165 FM |
647 | } |
648 | ||
f0fba2ad LG |
649 | if (cpu_dai->driver->ops->prepare) { |
650 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
651 | if (ret < 0) { |
652 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
653 | goto out; | |
654 | } | |
655 | } | |
db2a4165 | 656 | |
d45f6219 MB |
657 | /* cancel any delayed stream shutdown that is pending */ |
658 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
659 | codec_dai->pop_wait) { | |
660 | codec_dai->pop_wait = 0; | |
f0fba2ad | 661 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 662 | } |
db2a4165 | 663 | |
452c5eaa | 664 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
665 | snd_soc_dapm_stream_event(rtd, |
666 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
667 | SND_SOC_DAPM_STREAM_START); |
668 | else | |
f0fba2ad LG |
669 | snd_soc_dapm_stream_event(rtd, |
670 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 671 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 672 | |
452c5eaa | 673 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
674 | |
675 | out: | |
676 | mutex_unlock(&pcm_mutex); | |
677 | return ret; | |
678 | } | |
679 | ||
680 | /* | |
681 | * Called by ALSA when the hardware params are set by application. This | |
682 | * function can also be called multiple times and can allocate buffers | |
683 | * (using snd_pcm_lib_* ). It's non-atomic. | |
684 | */ | |
685 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
686 | struct snd_pcm_hw_params *params) | |
687 | { | |
688 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
689 | struct snd_soc_platform *platform = rtd->platform; |
690 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
691 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
692 | int ret = 0; |
693 | ||
694 | mutex_lock(&pcm_mutex); | |
695 | ||
f0fba2ad LG |
696 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
697 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
698 | if (ret < 0) { |
699 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 700 | goto out; |
cb666e5b | 701 | } |
db2a4165 FM |
702 | } |
703 | ||
f0fba2ad LG |
704 | if (codec_dai->driver->ops->hw_params) { |
705 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
706 | if (ret < 0) { |
707 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
708 | codec_dai->name); |
709 | goto codec_err; | |
db2a4165 FM |
710 | } |
711 | } | |
712 | ||
f0fba2ad LG |
713 | if (cpu_dai->driver->ops->hw_params) { |
714 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 715 | if (ret < 0) { |
3ff3f64b | 716 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 717 | cpu_dai->name); |
db2a4165 FM |
718 | goto interface_err; |
719 | } | |
720 | } | |
721 | ||
f0fba2ad LG |
722 | if (platform->driver->ops->hw_params) { |
723 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 724 | if (ret < 0) { |
3ff3f64b | 725 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
726 | platform->name); |
727 | goto platform_err; | |
728 | } | |
729 | } | |
730 | ||
f0fba2ad | 731 | rtd->rate = params_rate(params); |
06f409d7 | 732 | |
db2a4165 FM |
733 | out: |
734 | mutex_unlock(&pcm_mutex); | |
735 | return ret; | |
736 | ||
db2a4165 | 737 | platform_err: |
f0fba2ad LG |
738 | if (cpu_dai->driver->ops->hw_free) |
739 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
740 | |
741 | interface_err: | |
f0fba2ad LG |
742 | if (codec_dai->driver->ops->hw_free) |
743 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
744 | |
745 | codec_err: | |
f0fba2ad LG |
746 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
747 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
748 | |
749 | mutex_unlock(&pcm_mutex); | |
750 | return ret; | |
751 | } | |
752 | ||
753 | /* | |
754 | * Free's resources allocated by hw_params, can be called multiple times | |
755 | */ | |
756 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
757 | { | |
758 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
759 | struct snd_soc_platform *platform = rtd->platform; |
760 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
761 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
762 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
763 | |
764 | mutex_lock(&pcm_mutex); | |
765 | ||
766 | /* apply codec digital mute */ | |
8c6529db LG |
767 | if (!codec->active) |
768 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
769 | |
770 | /* free any machine hw params */ | |
f0fba2ad LG |
771 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
772 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
773 | |
774 | /* free any DMA resources */ | |
f0fba2ad LG |
775 | if (platform->driver->ops->hw_free) |
776 | platform->driver->ops->hw_free(substream); | |
db2a4165 FM |
777 | |
778 | /* now free hw params for the DAI's */ | |
f0fba2ad LG |
779 | if (codec_dai->driver->ops->hw_free) |
780 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 781 | |
f0fba2ad LG |
782 | if (cpu_dai->driver->ops->hw_free) |
783 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
784 | |
785 | mutex_unlock(&pcm_mutex); | |
786 | return 0; | |
787 | } | |
788 | ||
789 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
790 | { | |
791 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
792 | struct snd_soc_platform *platform = rtd->platform; |
793 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
794 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
795 | int ret; |
796 | ||
f0fba2ad LG |
797 | if (codec_dai->driver->ops->trigger) { |
798 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
799 | if (ret < 0) |
800 | return ret; | |
801 | } | |
802 | ||
f0fba2ad LG |
803 | if (platform->driver->ops->trigger) { |
804 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
805 | if (ret < 0) |
806 | return ret; | |
807 | } | |
808 | ||
f0fba2ad LG |
809 | if (cpu_dai->driver->ops->trigger) { |
810 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
811 | if (ret < 0) |
812 | return ret; | |
813 | } | |
814 | return 0; | |
815 | } | |
816 | ||
377b6f62 PU |
817 | /* |
818 | * soc level wrapper for pointer callback | |
258020d0 PU |
819 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
820 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
821 | */ |
822 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
823 | { | |
824 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
825 | struct snd_soc_platform *platform = rtd->platform; |
826 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
827 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 828 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 829 | snd_pcm_uframes_t offset = 0; |
258020d0 | 830 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 831 | |
f0fba2ad LG |
832 | if (platform->driver->ops->pointer) |
833 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 834 | |
f0fba2ad LG |
835 | if (cpu_dai->driver->ops->delay) |
836 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 837 | |
f0fba2ad LG |
838 | if (codec_dai->driver->ops->delay) |
839 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 840 | |
f0fba2ad LG |
841 | if (platform->driver->delay) |
842 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
843 | |
844 | runtime->delay = delay; | |
845 | ||
377b6f62 PU |
846 | return offset; |
847 | } | |
848 | ||
db2a4165 FM |
849 | /* ASoC PCM operations */ |
850 | static struct snd_pcm_ops soc_pcm_ops = { | |
851 | .open = soc_pcm_open, | |
852 | .close = soc_codec_close, | |
853 | .hw_params = soc_pcm_hw_params, | |
854 | .hw_free = soc_pcm_hw_free, | |
855 | .prepare = soc_pcm_prepare, | |
856 | .trigger = soc_pcm_trigger, | |
377b6f62 | 857 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
858 | }; |
859 | ||
860 | #ifdef CONFIG_PM | |
861 | /* powers down audio subsystem for suspend */ | |
416356fc | 862 | static int soc_suspend(struct device *dev) |
db2a4165 | 863 | { |
416356fc | 864 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 865 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 FM |
866 | int i; |
867 | ||
e3509ff0 DM |
868 | /* If the initialization of this soc device failed, there is no codec |
869 | * associated with it. Just bail out in this case. | |
870 | */ | |
f0fba2ad | 871 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
872 | return 0; |
873 | ||
6ed25978 AG |
874 | /* Due to the resume being scheduled into a workqueue we could |
875 | * suspend before that's finished - wait for it to complete. | |
876 | */ | |
f0fba2ad LG |
877 | snd_power_lock(card->snd_card); |
878 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
879 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
880 | |
881 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 882 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 883 | |
db2a4165 | 884 | /* mute any active DAC's */ |
f0fba2ad LG |
885 | for (i = 0; i < card->num_rtd; i++) { |
886 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
887 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 888 | |
f0fba2ad | 889 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
890 | continue; |
891 | ||
f0fba2ad LG |
892 | if (drv->ops->digital_mute && dai->playback_active) |
893 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
894 | } |
895 | ||
4ccab3e7 | 896 | /* suspend all pcms */ |
f0fba2ad LG |
897 | for (i = 0; i < card->num_rtd; i++) { |
898 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
899 | continue; |
900 | ||
f0fba2ad | 901 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 902 | } |
4ccab3e7 | 903 | |
87506549 | 904 | if (card->suspend_pre) |
416356fc | 905 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 906 | |
f0fba2ad LG |
907 | for (i = 0; i < card->num_rtd; i++) { |
908 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
909 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 910 | |
f0fba2ad | 911 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
912 | continue; |
913 | ||
f0fba2ad LG |
914 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
915 | cpu_dai->driver->suspend(cpu_dai); | |
916 | if (platform->driver->suspend && !platform->suspended) { | |
917 | platform->driver->suspend(cpu_dai); | |
918 | platform->suspended = 1; | |
919 | } | |
db2a4165 FM |
920 | } |
921 | ||
922 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
923 | for (i = 0; i < card->num_rtd; i++) { |
924 | run_delayed_work(&card->rtd[i].delayed_work); | |
925 | card->rtd[i].codec->suspend_bias_level = card->rtd[i].codec->bias_level; | |
926 | } | |
db2a4165 | 927 | |
f0fba2ad LG |
928 | for (i = 0; i < card->num_rtd; i++) { |
929 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 930 | |
f0fba2ad | 931 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
932 | continue; |
933 | ||
f0fba2ad LG |
934 | if (driver->playback.stream_name != NULL) |
935 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 936 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
937 | |
938 | if (driver->capture.stream_name != NULL) | |
939 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
940 | SND_SOC_DAPM_STREAM_SUSPEND); |
941 | } | |
942 | ||
f0fba2ad LG |
943 | /* suspend all CODECs */ |
944 | for (i = 0; i < card->num_rtd; i++) { | |
945 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
946 | /* If there are paths active then the CODEC will be held with | |
947 | * bias _ON and should not be suspended. */ | |
948 | if (!codec->suspended && codec->driver->suspend) { | |
949 | switch (codec->bias_level) { | |
950 | case SND_SOC_BIAS_STANDBY: | |
951 | case SND_SOC_BIAS_OFF: | |
952 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
953 | codec->suspended = 1; | |
954 | break; | |
955 | default: | |
956 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
957 | break; | |
958 | } | |
1547aba9 MB |
959 | } |
960 | } | |
db2a4165 | 961 | |
f0fba2ad LG |
962 | for (i = 0; i < card->num_rtd; i++) { |
963 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 964 | |
f0fba2ad | 965 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
966 | continue; |
967 | ||
f0fba2ad LG |
968 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
969 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
970 | } |
971 | ||
87506549 | 972 | if (card->suspend_post) |
416356fc | 973 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
974 | |
975 | return 0; | |
976 | } | |
977 | ||
6ed25978 AG |
978 | /* deferred resume work, so resume can complete before we finished |
979 | * setting our codec back up, which can be very slow on I2C | |
980 | */ | |
981 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 982 | { |
f0fba2ad LG |
983 | struct snd_soc_card *card = |
984 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
985 | struct platform_device *pdev = to_platform_device(card->dev); | |
db2a4165 FM |
986 | int i; |
987 | ||
6ed25978 AG |
988 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
989 | * so userspace apps are blocked from touching us | |
990 | */ | |
991 | ||
f0fba2ad | 992 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 993 | |
9949788b | 994 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 995 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 996 | |
87506549 MB |
997 | if (card->resume_pre) |
998 | card->resume_pre(pdev); | |
db2a4165 | 999 | |
f0fba2ad LG |
1000 | /* resume AC97 DAIs */ |
1001 | for (i = 0; i < card->num_rtd; i++) { | |
1002 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1003 | |
f0fba2ad | 1004 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1005 | continue; |
1006 | ||
f0fba2ad LG |
1007 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1008 | cpu_dai->driver->resume(cpu_dai); | |
1009 | } | |
1010 | ||
1011 | for (i = 0; i < card->num_rtd; i++) { | |
1012 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1013 | /* If the CODEC was idle over suspend then it will have been | |
1014 | * left with bias OFF or STANDBY and suspended so we must now | |
1015 | * resume. Otherwise the suspend was suppressed. | |
1016 | */ | |
1017 | if (codec->driver->resume && codec->suspended) { | |
1018 | switch (codec->bias_level) { | |
1019 | case SND_SOC_BIAS_STANDBY: | |
1020 | case SND_SOC_BIAS_OFF: | |
1021 | codec->driver->resume(codec); | |
1022 | codec->suspended = 0; | |
1023 | break; | |
1024 | default: | |
1025 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1026 | break; | |
1027 | } | |
1547aba9 MB |
1028 | } |
1029 | } | |
db2a4165 | 1030 | |
f0fba2ad LG |
1031 | for (i = 0; i < card->num_rtd; i++) { |
1032 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1033 | |
f0fba2ad | 1034 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1035 | continue; |
1036 | ||
f0fba2ad LG |
1037 | if (driver->playback.stream_name != NULL) |
1038 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1039 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1040 | |
1041 | if (driver->capture.stream_name != NULL) | |
1042 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1043 | SND_SOC_DAPM_STREAM_RESUME); |
1044 | } | |
1045 | ||
3ff3f64b | 1046 | /* unmute any active DACs */ |
f0fba2ad LG |
1047 | for (i = 0; i < card->num_rtd; i++) { |
1048 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1049 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1050 | |
f0fba2ad | 1051 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1052 | continue; |
1053 | ||
f0fba2ad LG |
1054 | if (drv->ops->digital_mute && dai->playback_active) |
1055 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1056 | } |
1057 | ||
f0fba2ad LG |
1058 | for (i = 0; i < card->num_rtd; i++) { |
1059 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1060 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1061 | |
f0fba2ad | 1062 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1063 | continue; |
1064 | ||
f0fba2ad LG |
1065 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1066 | cpu_dai->driver->resume(cpu_dai); | |
1067 | if (platform->driver->resume && platform->suspended) { | |
1068 | platform->driver->resume(cpu_dai); | |
1069 | platform->suspended = 0; | |
1070 | } | |
db2a4165 FM |
1071 | } |
1072 | ||
87506549 MB |
1073 | if (card->resume_post) |
1074 | card->resume_post(pdev); | |
db2a4165 | 1075 | |
f0fba2ad | 1076 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1077 | |
1078 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1079 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1080 | } |
1081 | ||
1082 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1083 | static int soc_resume(struct device *dev) |
6ed25978 | 1084 | { |
416356fc | 1085 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1086 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1087 | int i; | |
b9dd94a8 | 1088 | |
64ab9baa MB |
1089 | /* AC97 devices might have other drivers hanging off them so |
1090 | * need to resume immediately. Other drivers don't have that | |
1091 | * problem and may take a substantial amount of time to resume | |
1092 | * due to I/O costs and anti-pop so handle them out of line. | |
1093 | */ | |
f0fba2ad LG |
1094 | for (i = 0; i < card->num_rtd; i++) { |
1095 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1096 | if (cpu_dai->driver->ac97_control) { | |
1097 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1098 | soc_resume_deferred(&card->deferred_resume_work); | |
1099 | } else { | |
1100 | dev_dbg(dev, "Scheduling resume work\n"); | |
1101 | if (!schedule_work(&card->deferred_resume_work)) | |
1102 | dev_err(dev, "resume work item may be lost\n"); | |
1103 | } | |
64ab9baa | 1104 | } |
6ed25978 | 1105 | |
db2a4165 FM |
1106 | return 0; |
1107 | } | |
db2a4165 FM |
1108 | #else |
1109 | #define soc_suspend NULL | |
1110 | #define soc_resume NULL | |
1111 | #endif | |
1112 | ||
02a06d30 BS |
1113 | static struct snd_soc_dai_ops null_dai_ops = { |
1114 | }; | |
1115 | ||
f0fba2ad | 1116 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1117 | { |
f0fba2ad LG |
1118 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1119 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1120 | struct snd_soc_codec *codec; |
435c5e25 | 1121 | struct snd_soc_platform *platform; |
f0fba2ad | 1122 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1123 | |
f0fba2ad LG |
1124 | if (rtd->complete) |
1125 | return 1; | |
1126 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1127 | |
f0fba2ad LG |
1128 | /* do we already have the CPU DAI for this link ? */ |
1129 | if (rtd->cpu_dai) { | |
1130 | goto find_codec; | |
1131 | } | |
1132 | /* no, then find CPU DAI from registered DAIs*/ | |
1133 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1134 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1135 | ||
1136 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1137 | return -ENODEV; | |
1138 | ||
1139 | rtd->cpu_dai = cpu_dai; | |
1140 | goto find_codec; | |
435c5e25 | 1141 | } |
435c5e25 | 1142 | } |
f0fba2ad LG |
1143 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1144 | dai_link->cpu_dai_name); | |
6308419a | 1145 | |
f0fba2ad LG |
1146 | find_codec: |
1147 | /* do we already have the CODEC for this link ? */ | |
1148 | if (rtd->codec) { | |
1149 | goto find_platform; | |
1150 | } | |
1151 | ||
1152 | /* no, then find CODEC from registered CODECs*/ | |
1153 | list_for_each_entry(codec, &codec_list, list) { | |
1154 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1155 | rtd->codec = codec; | |
1156 | ||
1157 | if (!try_module_get(codec->dev->driver->owner)) | |
1158 | return -ENODEV; | |
1159 | ||
1160 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ | |
1161 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1162 | if (codec->dev == codec_dai->dev && | |
1163 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1164 | rtd->codec_dai = codec_dai; | |
1165 | goto find_platform; | |
1166 | } | |
435c5e25 | 1167 | } |
f0fba2ad LG |
1168 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1169 | dai_link->codec_dai_name); | |
1170 | ||
1171 | goto find_platform; | |
435c5e25 | 1172 | } |
f0fba2ad LG |
1173 | } |
1174 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1175 | dai_link->codec_name); | |
6b05eda6 | 1176 | |
f0fba2ad LG |
1177 | find_platform: |
1178 | /* do we already have the CODEC DAI for this link ? */ | |
1179 | if (rtd->platform) { | |
1180 | goto out; | |
c5af3a2e | 1181 | } |
f0fba2ad LG |
1182 | /* no, then find CPU DAI from registered DAIs*/ |
1183 | list_for_each_entry(platform, &platform_list, list) { | |
1184 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
c5af3a2e | 1185 | |
f0fba2ad LG |
1186 | if (!try_module_get(platform->dev->driver->owner)) |
1187 | return -ENODEV; | |
1188 | ||
1189 | rtd->platform = platform; | |
1190 | goto out; | |
1191 | } | |
02a06d30 BS |
1192 | } |
1193 | ||
f0fba2ad LG |
1194 | dev_dbg(card->dev, "platform %s not registered\n", |
1195 | dai_link->platform_name); | |
1196 | return 0; | |
1197 | ||
1198 | out: | |
1199 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1200 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1201 | rtd->complete = 1; | |
1202 | card->num_rtd++; | |
1203 | } | |
1204 | return 1; | |
1205 | } | |
1206 | ||
1207 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1208 | { | |
1209 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1210 | struct snd_soc_codec *codec = rtd->codec; | |
1211 | struct snd_soc_platform *platform = rtd->platform; | |
1212 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1213 | int err; | |
1214 | ||
1215 | /* unregister the rtd device */ | |
1216 | if (rtd->dev_registered) { | |
1217 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1218 | device_unregister(&rtd->dev); | |
1219 | rtd->dev_registered = 0; | |
1220 | } | |
1221 | ||
1222 | /* remove the CODEC DAI */ | |
1223 | if (codec_dai && codec_dai->probed) { | |
1224 | if (codec_dai->driver->remove) { | |
1225 | err = codec_dai->driver->remove(codec_dai); | |
1226 | if (err < 0) | |
1227 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1228 | } |
f0fba2ad LG |
1229 | codec_dai->probed = 0; |
1230 | list_del(&codec_dai->card_list); | |
1231 | } | |
6b05eda6 | 1232 | |
f0fba2ad LG |
1233 | /* remove the platform */ |
1234 | if (platform && platform->probed) { | |
1235 | if (platform->driver->remove) { | |
1236 | err = platform->driver->remove(platform); | |
1237 | if (err < 0) | |
1238 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1239 | } | |
1240 | platform->probed = 0; | |
1241 | list_del(&platform->card_list); | |
1242 | module_put(platform->dev->driver->owner); | |
1243 | } | |
435c5e25 | 1244 | |
f0fba2ad LG |
1245 | /* remove the CODEC */ |
1246 | if (codec && codec->probed) { | |
1247 | if (codec->driver->remove) { | |
1248 | err = codec->driver->remove(codec); | |
1249 | if (err < 0) | |
1250 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1251 | } | |
435c5e25 | 1252 | |
f0fba2ad LG |
1253 | /* Make sure all DAPM widgets are freed */ |
1254 | snd_soc_dapm_free(codec); | |
96dd3622 | 1255 | |
f0fba2ad LG |
1256 | soc_cleanup_codec_debugfs(codec); |
1257 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1258 | codec->probed = 0; | |
1259 | list_del(&codec->card_list); | |
1260 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1261 | } |
1262 | ||
f0fba2ad LG |
1263 | /* remove the cpu_dai */ |
1264 | if (cpu_dai && cpu_dai->probed) { | |
1265 | if (cpu_dai->driver->remove) { | |
1266 | err = cpu_dai->driver->remove(cpu_dai); | |
1267 | if (err < 0) | |
1268 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1269 | } |
f0fba2ad LG |
1270 | cpu_dai->probed = 0; |
1271 | list_del(&cpu_dai->card_list); | |
1272 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1273 | } |
f0fba2ad | 1274 | } |
db2a4165 | 1275 | |
f0fba2ad LG |
1276 | static void rtd_release(struct device *dev) {} |
1277 | ||
1278 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1279 | { | |
1280 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1281 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1282 | struct snd_soc_codec *codec = rtd->codec; | |
1283 | struct snd_soc_platform *platform = rtd->platform; | |
1284 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1285 | int ret; | |
1286 | ||
1287 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1288 | ||
1289 | /* config components */ | |
1290 | codec_dai->codec = codec; | |
1291 | codec->card = card; | |
1292 | cpu_dai->platform = platform; | |
1293 | rtd->card = card; | |
1294 | rtd->dev.parent = card->dev; | |
1295 | codec_dai->card = card; | |
1296 | cpu_dai->card = card; | |
1297 | ||
1298 | /* set default power off timeout */ | |
1299 | rtd->pmdown_time = pmdown_time; | |
1300 | ||
1301 | /* probe the cpu_dai */ | |
1302 | if (!cpu_dai->probed) { | |
1303 | if (cpu_dai->driver->probe) { | |
1304 | ret = cpu_dai->driver->probe(cpu_dai); | |
1305 | if (ret < 0) { | |
1306 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1307 | cpu_dai->name); | |
1308 | return ret; | |
1309 | } | |
1310 | } | |
1311 | cpu_dai->probed = 1; | |
1312 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1313 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1314 | } |
1315 | ||
f0fba2ad LG |
1316 | /* probe the CODEC */ |
1317 | if (!codec->probed) { | |
1318 | if (codec->driver->probe) { | |
1319 | ret = codec->driver->probe(codec); | |
1320 | if (ret < 0) { | |
1321 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1322 | codec->name); | |
1323 | return ret; | |
1324 | } | |
1325 | } | |
1326 | /* mark codec as probed and add to card codec list */ | |
1327 | codec->probed = 1; | |
1328 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1329 | } |
1330 | ||
f0fba2ad LG |
1331 | /* probe the platform */ |
1332 | if (!platform->probed) { | |
1333 | if (platform->driver->probe) { | |
1334 | ret = platform->driver->probe(platform); | |
1335 | if (ret < 0) { | |
1336 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1337 | platform->name); | |
1338 | return ret; | |
1339 | } | |
1340 | } | |
1341 | /* mark platform as probed and add to card platform list */ | |
1342 | platform->probed = 1; | |
1343 | list_add(&platform->card_list, &card->platform_dev_list); | |
1344 | } | |
6ed25978 | 1345 | |
f0fba2ad LG |
1346 | /* probe the CODEC DAI */ |
1347 | if (!codec_dai->probed) { | |
1348 | if (codec_dai->driver->probe) { | |
1349 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1350 | if (ret < 0) { |
f0fba2ad LG |
1351 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1352 | codec_dai->name); | |
1353 | return ret; | |
fe3e78e0 MB |
1354 | } |
1355 | } | |
f0fba2ad LG |
1356 | |
1357 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1358 | codec_dai->probed = 1; | |
1359 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1360 | } |
1361 | ||
f0fba2ad LG |
1362 | /* DAPM dai link stream work */ |
1363 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1364 | ||
1365 | /* now that all clients have probed, initialise the DAI link */ | |
1366 | if (dai_link->init) { | |
1367 | ret = dai_link->init(rtd); | |
1368 | if (ret < 0) { | |
1369 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1370 | return ret; | |
1371 | } | |
1372 | } | |
fe3e78e0 MB |
1373 | |
1374 | /* Make sure all DAPM widgets are instantiated */ | |
1375 | snd_soc_dapm_new_widgets(codec); | |
f0fba2ad | 1376 | snd_soc_dapm_sync(codec); |
fe3e78e0 | 1377 | |
f0fba2ad LG |
1378 | /* register the rtd device */ |
1379 | rtd->dev.init_name = rtd->dai_link->stream_name; | |
1380 | rtd->dev.release = rtd_release; | |
1381 | rtd->dev.init_name = dai_link->name; | |
1382 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1383 | if (ret < 0) { |
f0fba2ad LG |
1384 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1385 | return ret; | |
fe3e78e0 MB |
1386 | } |
1387 | ||
f0fba2ad LG |
1388 | rtd->dev_registered = 1; |
1389 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1390 | if (ret < 0) | |
1391 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1392 | ||
1393 | /* add DAPM sysfs entries for this codec */ | |
1394 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1395 | if (ret < 0) | |
1396 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1397 | ||
1398 | /* add codec sysfs entries */ | |
1399 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1400 | if (ret < 0) | |
1401 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1402 | ||
1403 | soc_init_codec_debugfs(codec); | |
1404 | ||
1405 | /* create the pcm */ | |
1406 | ret = soc_new_pcm(rtd, num); | |
1407 | if (ret < 0) { | |
1408 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1409 | return ret; | |
1410 | } | |
1411 | ||
1412 | /* add platform data for AC97 devices */ | |
1413 | if (rtd->codec_dai->driver->ac97_control) | |
1414 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1415 | ||
1416 | return 0; | |
1417 | } | |
1418 | ||
fe3e78e0 | 1419 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1420 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1421 | { | |
1422 | int ret; | |
1423 | ||
fe3e78e0 MB |
1424 | /* Only instantiate AC97 if not already done by the adaptor |
1425 | * for the generic AC97 subsystem. | |
1426 | */ | |
f0fba2ad LG |
1427 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
1428 | ||
1429 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1430 | if (ret < 0) { |
1431 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1432 | return ret; |
fe3e78e0 | 1433 | } |
f0fba2ad LG |
1434 | |
1435 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1436 | } |
f0fba2ad LG |
1437 | return 0; |
1438 | } | |
1439 | ||
1440 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1441 | { | |
1442 | if (codec->ac97_registered) { | |
1443 | soc_ac97_dev_unregister(codec); | |
1444 | codec->ac97_registered = 0; | |
1445 | } | |
1446 | } | |
fe3e78e0 MB |
1447 | #endif |
1448 | ||
f0fba2ad LG |
1449 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1450 | { | |
1451 | struct platform_device *pdev = to_platform_device(card->dev); | |
1452 | int ret, i; | |
fe3e78e0 | 1453 | |
f0fba2ad | 1454 | mutex_lock(&card->mutex); |
dbe21408 | 1455 | |
f0fba2ad LG |
1456 | if (card->instantiated) { |
1457 | mutex_unlock(&card->mutex); | |
1458 | return; | |
1459 | } | |
fe3e78e0 | 1460 | |
f0fba2ad LG |
1461 | /* bind DAIs */ |
1462 | for (i = 0; i < card->num_links; i++) | |
1463 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1464 | |
f0fba2ad LG |
1465 | /* bind completed ? */ |
1466 | if (card->num_rtd != card->num_links) { | |
1467 | mutex_unlock(&card->mutex); | |
1468 | return; | |
1469 | } | |
435c5e25 | 1470 | |
f0fba2ad LG |
1471 | /* card bind complete so register a sound card */ |
1472 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1473 | card->owner, 0, &card->snd_card); | |
1474 | if (ret < 0) { | |
1475 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1476 | card->name); | |
1477 | mutex_unlock(&card->mutex); | |
1478 | return; | |
1479 | } | |
1480 | card->snd_card->dev = card->dev; | |
1481 | ||
1482 | #ifdef CONFIG_PM | |
1483 | /* deferred resume work */ | |
1484 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1485 | #endif | |
db2a4165 | 1486 | |
f0fba2ad LG |
1487 | /* initialise the sound card only once */ |
1488 | if (card->probe) { | |
1489 | ret = card->probe(pdev); | |
1490 | if (ret < 0) | |
1491 | goto card_probe_error; | |
1492 | } | |
fe3e78e0 | 1493 | |
f0fba2ad LG |
1494 | for (i = 0; i < card->num_links; i++) { |
1495 | ret = soc_probe_dai_link(card, i); | |
1496 | if (ret < 0) { | |
1497 | printk(KERN_ERR "asoc: failed to instanciate card %s\n", card->name); | |
1498 | goto probe_dai_err; | |
1499 | } | |
1500 | } | |
db2a4165 | 1501 | |
f0fba2ad LG |
1502 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1503 | "%s", card->name); | |
1504 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1505 | "%s", card->name); | |
1506 | ||
1507 | ret = snd_card_register(card->snd_card); | |
1508 | if (ret < 0) { | |
1509 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1510 | goto probe_dai_err; | |
db2a4165 FM |
1511 | } |
1512 | ||
f0fba2ad LG |
1513 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1514 | /* register any AC97 codecs */ | |
1515 | for (i = 0; i < card->num_rtd; i++) { | |
1516 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1517 | if (ret < 0) { | |
1518 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1519 | goto probe_dai_err; | |
1520 | } | |
1521 | } | |
1522 | #endif | |
1523 | ||
1524 | card->instantiated = 1; | |
1525 | mutex_unlock(&card->mutex); | |
1526 | return; | |
1527 | ||
1528 | probe_dai_err: | |
1529 | for (i = 0; i < card->num_links; i++) | |
1530 | soc_remove_dai_link(card, i); | |
1531 | ||
1532 | card_probe_error: | |
87506549 MB |
1533 | if (card->remove) |
1534 | card->remove(pdev); | |
f0fba2ad LG |
1535 | |
1536 | snd_card_free(card->snd_card); | |
1537 | ||
1538 | mutex_unlock(&card->mutex); | |
435c5e25 | 1539 | } |
db2a4165 | 1540 | |
435c5e25 MB |
1541 | /* |
1542 | * Attempt to initialise any uninitalised cards. Must be called with | |
1543 | * client_mutex. | |
1544 | */ | |
1545 | static void snd_soc_instantiate_cards(void) | |
1546 | { | |
1547 | struct snd_soc_card *card; | |
1548 | list_for_each_entry(card, &card_list, list) | |
1549 | snd_soc_instantiate_card(card); | |
1550 | } | |
1551 | ||
1552 | /* probes a new socdev */ | |
1553 | static int soc_probe(struct platform_device *pdev) | |
1554 | { | |
f0fba2ad | 1555 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1556 | int ret = 0; |
435c5e25 MB |
1557 | |
1558 | /* Bodge while we unpick instantiation */ | |
1559 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1560 | INIT_LIST_HEAD(&card->dai_dev_list); |
1561 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1562 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1563 | ||
435c5e25 MB |
1564 | ret = snd_soc_register_card(card); |
1565 | if (ret != 0) { | |
1566 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1567 | return ret; | |
1568 | } | |
1569 | ||
1570 | return 0; | |
db2a4165 FM |
1571 | } |
1572 | ||
1573 | /* removes a socdev */ | |
1574 | static int soc_remove(struct platform_device *pdev) | |
1575 | { | |
f0fba2ad | 1576 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1577 | int i; |
db2a4165 | 1578 | |
f0fba2ad | 1579 | if (card->instantiated) { |
914dc182 | 1580 | |
f0fba2ad LG |
1581 | /* make sure any delayed work runs */ |
1582 | for (i = 0; i < card->num_rtd; i++) { | |
1583 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1584 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1585 | } |
db2a4165 | 1586 | |
f0fba2ad LG |
1587 | /* remove and free each DAI */ |
1588 | for (i = 0; i < card->num_rtd; i++) | |
1589 | soc_remove_dai_link(card, i); | |
1590 | ||
1591 | /* remove the card */ | |
b2dfa62c GL |
1592 | if (card->remove) |
1593 | card->remove(pdev); | |
db2a4165 | 1594 | |
f0fba2ad LG |
1595 | kfree(card->rtd); |
1596 | snd_card_free(card->snd_card); | |
1597 | } | |
c5af3a2e | 1598 | snd_soc_unregister_card(card); |
db2a4165 FM |
1599 | return 0; |
1600 | } | |
1601 | ||
416356fc | 1602 | static int soc_poweroff(struct device *dev) |
51737470 | 1603 | { |
416356fc | 1604 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1605 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1606 | int i; | |
51737470 MB |
1607 | |
1608 | if (!card->instantiated) | |
416356fc | 1609 | return 0; |
51737470 MB |
1610 | |
1611 | /* Flush out pmdown_time work - we actually do want to run it | |
1612 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1613 | for (i = 0; i < card->num_rtd; i++) { |
1614 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1615 | run_delayed_work(&rtd->delayed_work); | |
1616 | } | |
51737470 | 1617 | |
f0fba2ad | 1618 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1619 | |
1620 | return 0; | |
51737470 MB |
1621 | } |
1622 | ||
47145210 | 1623 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1624 | .suspend = soc_suspend, |
1625 | .resume = soc_resume, | |
1626 | .poweroff = soc_poweroff, | |
1627 | }; | |
1628 | ||
db2a4165 FM |
1629 | /* ASoC platform driver */ |
1630 | static struct platform_driver soc_driver = { | |
1631 | .driver = { | |
1632 | .name = "soc-audio", | |
8b45a209 | 1633 | .owner = THIS_MODULE, |
416356fc | 1634 | .pm = &soc_pm_ops, |
db2a4165 FM |
1635 | }, |
1636 | .probe = soc_probe, | |
1637 | .remove = soc_remove, | |
db2a4165 FM |
1638 | }; |
1639 | ||
1640 | /* create a new pcm */ | |
f0fba2ad LG |
1641 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1642 | { | |
1643 | struct snd_soc_codec *codec = rtd->codec; | |
1644 | struct snd_soc_platform *platform = rtd->platform; | |
1645 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1646 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1647 | struct snd_pcm *pcm; |
1648 | char new_name[64]; | |
1649 | int ret = 0, playback = 0, capture = 0; | |
1650 | ||
db2a4165 | 1651 | /* check client and interface hw capabilities */ |
40ca1142 | 1652 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1653 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1654 | |
f0fba2ad | 1655 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1656 | playback = 1; |
f0fba2ad | 1657 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1658 | capture = 1; |
1659 | ||
f0fba2ad LG |
1660 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1661 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1662 | num, playback, capture, &pcm); | |
db2a4165 | 1663 | if (ret < 0) { |
f0fba2ad | 1664 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1665 | return ret; |
1666 | } | |
1667 | ||
f0fba2ad | 1668 | rtd->pcm = pcm; |
db2a4165 | 1669 | pcm->private_data = rtd; |
f0fba2ad LG |
1670 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1671 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1672 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1673 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1674 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1675 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1676 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1677 | |
1678 | if (playback) | |
1679 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1680 | ||
1681 | if (capture) | |
1682 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1683 | ||
f0fba2ad | 1684 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1685 | if (ret < 0) { |
1686 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1687 | return ret; |
1688 | } | |
1689 | ||
f0fba2ad | 1690 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1691 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1692 | cpu_dai->name); | |
1693 | return ret; | |
1694 | } | |
1695 | ||
096e49d5 MB |
1696 | /** |
1697 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1698 | * | |
1699 | * @codec: CODEC to query. | |
1700 | * @reg: Register to query. | |
1701 | * | |
1702 | * Boolean function indiciating if a CODEC register is volatile. | |
1703 | */ | |
1704 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1705 | { | |
f0fba2ad LG |
1706 | if (codec->driver->volatile_register) |
1707 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
1708 | else |
1709 | return 0; | |
1710 | } | |
1711 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1712 | ||
db2a4165 FM |
1713 | /** |
1714 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1715 | * @codec: audio codec | |
1716 | * @ops: AC97 bus operations | |
1717 | * @num: AC97 codec number | |
1718 | * | |
1719 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1720 | */ | |
1721 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1722 | struct snd_ac97_bus_ops *ops, int num) | |
1723 | { | |
1724 | mutex_lock(&codec->mutex); | |
1725 | ||
1726 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1727 | if (codec->ac97 == NULL) { | |
1728 | mutex_unlock(&codec->mutex); | |
1729 | return -ENOMEM; | |
1730 | } | |
1731 | ||
1732 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1733 | if (codec->ac97->bus == NULL) { | |
1734 | kfree(codec->ac97); | |
1735 | codec->ac97 = NULL; | |
1736 | mutex_unlock(&codec->mutex); | |
1737 | return -ENOMEM; | |
1738 | } | |
1739 | ||
1740 | codec->ac97->bus->ops = ops; | |
1741 | codec->ac97->num = num; | |
1742 | mutex_unlock(&codec->mutex); | |
1743 | return 0; | |
1744 | } | |
1745 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1746 | ||
1747 | /** | |
1748 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1749 | * @codec: audio codec | |
1750 | * | |
1751 | * Frees AC97 codec device resources. | |
1752 | */ | |
1753 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1754 | { | |
1755 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1756 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1757 | soc_unregister_ac97_dai_link(codec); | |
1758 | #endif | |
db2a4165 FM |
1759 | kfree(codec->ac97->bus); |
1760 | kfree(codec->ac97); | |
1761 | codec->ac97 = NULL; | |
1762 | mutex_unlock(&codec->mutex); | |
1763 | } | |
1764 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1765 | ||
1766 | /** | |
1767 | * snd_soc_update_bits - update codec register bits | |
1768 | * @codec: audio codec | |
1769 | * @reg: codec register | |
1770 | * @mask: register mask | |
1771 | * @value: new value | |
1772 | * | |
1773 | * Writes new register value. | |
1774 | * | |
1775 | * Returns 1 for change else 0. | |
1776 | */ | |
1777 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1778 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1779 | { |
1780 | int change; | |
46f5822f | 1781 | unsigned int old, new; |
db2a4165 | 1782 | |
db2a4165 FM |
1783 | old = snd_soc_read(codec, reg); |
1784 | new = (old & ~mask) | value; | |
1785 | change = old != new; | |
1786 | if (change) | |
1787 | snd_soc_write(codec, reg, new); | |
1788 | ||
db2a4165 FM |
1789 | return change; |
1790 | } | |
1791 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1792 | ||
6c508c62 EN |
1793 | /** |
1794 | * snd_soc_update_bits_locked - update codec register bits | |
1795 | * @codec: audio codec | |
1796 | * @reg: codec register | |
1797 | * @mask: register mask | |
1798 | * @value: new value | |
1799 | * | |
1800 | * Writes new register value, and takes the codec mutex. | |
1801 | * | |
1802 | * Returns 1 for change else 0. | |
1803 | */ | |
dd1b3d53 MB |
1804 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1805 | unsigned short reg, unsigned int mask, | |
1806 | unsigned int value) | |
6c508c62 EN |
1807 | { |
1808 | int change; | |
1809 | ||
1810 | mutex_lock(&codec->mutex); | |
1811 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1812 | mutex_unlock(&codec->mutex); | |
1813 | ||
1814 | return change; | |
1815 | } | |
dd1b3d53 | 1816 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1817 | |
db2a4165 FM |
1818 | /** |
1819 | * snd_soc_test_bits - test register for change | |
1820 | * @codec: audio codec | |
1821 | * @reg: codec register | |
1822 | * @mask: register mask | |
1823 | * @value: new value | |
1824 | * | |
1825 | * Tests a register with a new value and checks if the new value is | |
1826 | * different from the old value. | |
1827 | * | |
1828 | * Returns 1 for change else 0. | |
1829 | */ | |
1830 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1831 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1832 | { |
1833 | int change; | |
46f5822f | 1834 | unsigned int old, new; |
db2a4165 | 1835 | |
db2a4165 FM |
1836 | old = snd_soc_read(codec, reg); |
1837 | new = (old & ~mask) | value; | |
1838 | change = old != new; | |
db2a4165 FM |
1839 | |
1840 | return change; | |
1841 | } | |
1842 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1843 | ||
db2a4165 FM |
1844 | /** |
1845 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1846 | * @substream: the pcm substream | |
1847 | * @hw: the hardware parameters | |
1848 | * | |
1849 | * Sets the substream runtime hardware parameters. | |
1850 | */ | |
1851 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1852 | const struct snd_pcm_hardware *hw) | |
1853 | { | |
1854 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1855 | runtime->hw.info = hw->info; | |
1856 | runtime->hw.formats = hw->formats; | |
1857 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1858 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1859 | runtime->hw.periods_min = hw->periods_min; | |
1860 | runtime->hw.periods_max = hw->periods_max; | |
1861 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1862 | runtime->hw.fifo_size = hw->fifo_size; | |
1863 | return 0; | |
1864 | } | |
1865 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1866 | ||
1867 | /** | |
1868 | * snd_soc_cnew - create new control | |
1869 | * @_template: control template | |
1870 | * @data: control private data | |
ac11a2b3 | 1871 | * @long_name: control long name |
db2a4165 FM |
1872 | * |
1873 | * Create a new mixer control from a template control. | |
1874 | * | |
1875 | * Returns 0 for success, else error. | |
1876 | */ | |
1877 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1878 | void *data, char *long_name) | |
1879 | { | |
1880 | struct snd_kcontrol_new template; | |
1881 | ||
1882 | memcpy(&template, _template, sizeof(template)); | |
1883 | if (long_name) | |
1884 | template.name = long_name; | |
db2a4165 FM |
1885 | template.index = 0; |
1886 | ||
1887 | return snd_ctl_new1(&template, data); | |
1888 | } | |
1889 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1890 | ||
3e8e1952 IM |
1891 | /** |
1892 | * snd_soc_add_controls - add an array of controls to a codec. | |
1893 | * Convienience function to add a list of controls. Many codecs were | |
1894 | * duplicating this code. | |
1895 | * | |
1896 | * @codec: codec to add controls to | |
1897 | * @controls: array of controls to add | |
1898 | * @num_controls: number of elements in the array | |
1899 | * | |
1900 | * Return 0 for success, else error. | |
1901 | */ | |
1902 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1903 | const struct snd_kcontrol_new *controls, int num_controls) | |
1904 | { | |
f0fba2ad | 1905 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
1906 | int err, i; |
1907 | ||
1908 | for (i = 0; i < num_controls; i++) { | |
1909 | const struct snd_kcontrol_new *control = &controls[i]; | |
1910 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
1911 | if (err < 0) { | |
1912 | dev_err(codec->dev, "%s: Failed to add %s\n", | |
1913 | codec->name, control->name); | |
1914 | return err; | |
1915 | } | |
1916 | } | |
1917 | ||
1918 | return 0; | |
1919 | } | |
1920 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
1921 | ||
db2a4165 FM |
1922 | /** |
1923 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
1924 | * @kcontrol: mixer control | |
1925 | * @uinfo: control element information | |
1926 | * | |
1927 | * Callback to provide information about a double enumerated | |
1928 | * mixer control. | |
1929 | * | |
1930 | * Returns 0 for success. | |
1931 | */ | |
1932 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
1933 | struct snd_ctl_elem_info *uinfo) | |
1934 | { | |
1935 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
1936 | ||
1937 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
1938 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 1939 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 1940 | |
f8ba0b7b JS |
1941 | if (uinfo->value.enumerated.item > e->max - 1) |
1942 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
1943 | strcpy(uinfo->value.enumerated.name, |
1944 | e->texts[uinfo->value.enumerated.item]); | |
1945 | return 0; | |
1946 | } | |
1947 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
1948 | ||
1949 | /** | |
1950 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
1951 | * @kcontrol: mixer control | |
ac11a2b3 | 1952 | * @ucontrol: control element information |
db2a4165 FM |
1953 | * |
1954 | * Callback to get the value of a double enumerated mixer. | |
1955 | * | |
1956 | * Returns 0 for success. | |
1957 | */ | |
1958 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
1959 | struct snd_ctl_elem_value *ucontrol) | |
1960 | { | |
1961 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1962 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1963 | unsigned int val, bitmask; |
db2a4165 | 1964 | |
f8ba0b7b | 1965 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
1966 | ; |
1967 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
1968 | ucontrol->value.enumerated.item[0] |
1969 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
1970 | if (e->shift_l != e->shift_r) |
1971 | ucontrol->value.enumerated.item[1] = | |
1972 | (val >> e->shift_r) & (bitmask - 1); | |
1973 | ||
1974 | return 0; | |
1975 | } | |
1976 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
1977 | ||
1978 | /** | |
1979 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
1980 | * @kcontrol: mixer control | |
ac11a2b3 | 1981 | * @ucontrol: control element information |
db2a4165 FM |
1982 | * |
1983 | * Callback to set the value of a double enumerated mixer. | |
1984 | * | |
1985 | * Returns 0 for success. | |
1986 | */ | |
1987 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
1988 | struct snd_ctl_elem_value *ucontrol) | |
1989 | { | |
1990 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1991 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
1992 | unsigned int val; |
1993 | unsigned int mask, bitmask; | |
db2a4165 | 1994 | |
f8ba0b7b | 1995 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 1996 | ; |
f8ba0b7b | 1997 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
1998 | return -EINVAL; |
1999 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2000 | mask = (bitmask - 1) << e->shift_l; | |
2001 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2002 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2003 | return -EINVAL; |
2004 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2005 | mask |= (bitmask - 1) << e->shift_r; | |
2006 | } | |
2007 | ||
6c508c62 | 2008 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2009 | } |
2010 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2011 | ||
2e72f8e3 PU |
2012 | /** |
2013 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2014 | * @kcontrol: mixer control | |
2015 | * @ucontrol: control element information | |
2016 | * | |
2017 | * Callback to get the value of a double semi enumerated mixer. | |
2018 | * | |
2019 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2020 | * used for handling bitfield coded enumeration for example. | |
2021 | * | |
2022 | * Returns 0 for success. | |
2023 | */ | |
2024 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2025 | struct snd_ctl_elem_value *ucontrol) | |
2026 | { | |
2027 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2028 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2029 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2030 | |
2031 | reg_val = snd_soc_read(codec, e->reg); | |
2032 | val = (reg_val >> e->shift_l) & e->mask; | |
2033 | for (mux = 0; mux < e->max; mux++) { | |
2034 | if (val == e->values[mux]) | |
2035 | break; | |
2036 | } | |
2037 | ucontrol->value.enumerated.item[0] = mux; | |
2038 | if (e->shift_l != e->shift_r) { | |
2039 | val = (reg_val >> e->shift_r) & e->mask; | |
2040 | for (mux = 0; mux < e->max; mux++) { | |
2041 | if (val == e->values[mux]) | |
2042 | break; | |
2043 | } | |
2044 | ucontrol->value.enumerated.item[1] = mux; | |
2045 | } | |
2046 | ||
2047 | return 0; | |
2048 | } | |
2049 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2050 | ||
2051 | /** | |
2052 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2053 | * @kcontrol: mixer control | |
2054 | * @ucontrol: control element information | |
2055 | * | |
2056 | * Callback to set the value of a double semi enumerated mixer. | |
2057 | * | |
2058 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2059 | * used for handling bitfield coded enumeration for example. | |
2060 | * | |
2061 | * Returns 0 for success. | |
2062 | */ | |
2063 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2064 | struct snd_ctl_elem_value *ucontrol) | |
2065 | { | |
2066 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2067 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2068 | unsigned int val; |
2069 | unsigned int mask; | |
2e72f8e3 PU |
2070 | |
2071 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2072 | return -EINVAL; | |
2073 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2074 | mask = e->mask << e->shift_l; | |
2075 | if (e->shift_l != e->shift_r) { | |
2076 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2077 | return -EINVAL; | |
2078 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2079 | mask |= e->mask << e->shift_r; | |
2080 | } | |
2081 | ||
6c508c62 | 2082 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2083 | } |
2084 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2085 | ||
db2a4165 FM |
2086 | /** |
2087 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2088 | * @kcontrol: mixer control | |
2089 | * @uinfo: control element information | |
2090 | * | |
2091 | * Callback to provide information about an external enumerated | |
2092 | * single mixer. | |
2093 | * | |
2094 | * Returns 0 for success. | |
2095 | */ | |
2096 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2097 | struct snd_ctl_elem_info *uinfo) | |
2098 | { | |
2099 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2100 | ||
2101 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2102 | uinfo->count = 1; | |
f8ba0b7b | 2103 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2104 | |
f8ba0b7b JS |
2105 | if (uinfo->value.enumerated.item > e->max - 1) |
2106 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2107 | strcpy(uinfo->value.enumerated.name, |
2108 | e->texts[uinfo->value.enumerated.item]); | |
2109 | return 0; | |
2110 | } | |
2111 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2112 | ||
2113 | /** | |
2114 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2115 | * @kcontrol: mixer control | |
2116 | * @uinfo: control element information | |
2117 | * | |
2118 | * Callback to provide information about a single external mixer control. | |
2119 | * | |
2120 | * Returns 0 for success. | |
2121 | */ | |
2122 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2123 | struct snd_ctl_elem_info *uinfo) | |
2124 | { | |
a7a4ac86 PZ |
2125 | int max = kcontrol->private_value; |
2126 | ||
fd5dfad9 | 2127 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2128 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2129 | else | |
2130 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2131 | |
db2a4165 FM |
2132 | uinfo->count = 1; |
2133 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2134 | uinfo->value.integer.max = max; |
db2a4165 FM |
2135 | return 0; |
2136 | } | |
2137 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2138 | ||
db2a4165 FM |
2139 | /** |
2140 | * snd_soc_info_volsw - single mixer info callback | |
2141 | * @kcontrol: mixer control | |
2142 | * @uinfo: control element information | |
2143 | * | |
2144 | * Callback to provide information about a single mixer control. | |
2145 | * | |
2146 | * Returns 0 for success. | |
2147 | */ | |
2148 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2149 | struct snd_ctl_elem_info *uinfo) | |
2150 | { | |
4eaa9819 JS |
2151 | struct soc_mixer_control *mc = |
2152 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2153 | int platform_max; |
762b8df7 | 2154 | unsigned int shift = mc->shift; |
815ecf8d | 2155 | unsigned int rshift = mc->rshift; |
db2a4165 | 2156 | |
d11bb4a9 PU |
2157 | if (!mc->platform_max) |
2158 | mc->platform_max = mc->max; | |
2159 | platform_max = mc->platform_max; | |
2160 | ||
2161 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2162 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2163 | else | |
2164 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2165 | ||
db2a4165 FM |
2166 | uinfo->count = shift == rshift ? 1 : 2; |
2167 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2168 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2169 | return 0; |
2170 | } | |
2171 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2172 | ||
2173 | /** | |
2174 | * snd_soc_get_volsw - single mixer get callback | |
2175 | * @kcontrol: mixer control | |
ac11a2b3 | 2176 | * @ucontrol: control element information |
db2a4165 FM |
2177 | * |
2178 | * Callback to get the value of a single mixer control. | |
2179 | * | |
2180 | * Returns 0 for success. | |
2181 | */ | |
2182 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2183 | struct snd_ctl_elem_value *ucontrol) | |
2184 | { | |
4eaa9819 JS |
2185 | struct soc_mixer_control *mc = |
2186 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2187 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2188 | unsigned int reg = mc->reg; |
2189 | unsigned int shift = mc->shift; | |
2190 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2191 | int max = mc->max; |
815ecf8d JS |
2192 | unsigned int mask = (1 << fls(max)) - 1; |
2193 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2194 | |
2195 | ucontrol->value.integer.value[0] = | |
2196 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2197 | if (shift != rshift) | |
2198 | ucontrol->value.integer.value[1] = | |
2199 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2200 | if (invert) { | |
2201 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2202 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2203 | if (shift != rshift) |
2204 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2205 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2206 | } |
2207 | ||
2208 | return 0; | |
2209 | } | |
2210 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2211 | ||
2212 | /** | |
2213 | * snd_soc_put_volsw - single mixer put callback | |
2214 | * @kcontrol: mixer control | |
ac11a2b3 | 2215 | * @ucontrol: control element information |
db2a4165 FM |
2216 | * |
2217 | * Callback to set the value of a single mixer control. | |
2218 | * | |
2219 | * Returns 0 for success. | |
2220 | */ | |
2221 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2222 | struct snd_ctl_elem_value *ucontrol) | |
2223 | { | |
4eaa9819 JS |
2224 | struct soc_mixer_control *mc = |
2225 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2226 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2227 | unsigned int reg = mc->reg; |
2228 | unsigned int shift = mc->shift; | |
2229 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2230 | int max = mc->max; |
815ecf8d JS |
2231 | unsigned int mask = (1 << fls(max)) - 1; |
2232 | unsigned int invert = mc->invert; | |
46f5822f | 2233 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2234 | |
2235 | val = (ucontrol->value.integer.value[0] & mask); | |
2236 | if (invert) | |
a7a4ac86 | 2237 | val = max - val; |
db2a4165 FM |
2238 | val_mask = mask << shift; |
2239 | val = val << shift; | |
2240 | if (shift != rshift) { | |
2241 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2242 | if (invert) | |
a7a4ac86 | 2243 | val2 = max - val2; |
db2a4165 FM |
2244 | val_mask |= mask << rshift; |
2245 | val |= val2 << rshift; | |
2246 | } | |
6c508c62 | 2247 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2248 | } |
2249 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2250 | ||
2251 | /** | |
2252 | * snd_soc_info_volsw_2r - double mixer info callback | |
2253 | * @kcontrol: mixer control | |
2254 | * @uinfo: control element information | |
2255 | * | |
2256 | * Callback to provide information about a double mixer control that | |
2257 | * spans 2 codec registers. | |
2258 | * | |
2259 | * Returns 0 for success. | |
2260 | */ | |
2261 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2262 | struct snd_ctl_elem_info *uinfo) | |
2263 | { | |
4eaa9819 JS |
2264 | struct soc_mixer_control *mc = |
2265 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2266 | int platform_max; |
a7a4ac86 | 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; | |
db2a4165 | 2276 | |
db2a4165 FM |
2277 | uinfo->count = 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_2r); | |
2283 | ||
2284 | /** | |
2285 | * snd_soc_get_volsw_2r - double mixer get callback | |
2286 | * @kcontrol: mixer control | |
ac11a2b3 | 2287 | * @ucontrol: control element information |
db2a4165 FM |
2288 | * |
2289 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2290 | * | |
2291 | * Returns 0 for success. | |
2292 | */ | |
2293 | int snd_soc_get_volsw_2r(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 reg2 = mc->rreg; | |
2301 | unsigned int shift = mc->shift; | |
4eaa9819 | 2302 | int max = mc->max; |
46f5822f | 2303 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2304 | unsigned int invert = mc->invert; |
db2a4165 FM |
2305 | |
2306 | ucontrol->value.integer.value[0] = | |
2307 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2308 | ucontrol->value.integer.value[1] = | |
2309 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2310 | if (invert) { | |
2311 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2312 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2313 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2314 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2315 | } |
2316 | ||
2317 | return 0; | |
2318 | } | |
2319 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2320 | ||
2321 | /** | |
2322 | * snd_soc_put_volsw_2r - double mixer set callback | |
2323 | * @kcontrol: mixer control | |
ac11a2b3 | 2324 | * @ucontrol: control element information |
db2a4165 FM |
2325 | * |
2326 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2327 | * | |
2328 | * Returns 0 for success. | |
2329 | */ | |
2330 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2331 | struct snd_ctl_elem_value *ucontrol) | |
2332 | { | |
4eaa9819 JS |
2333 | struct soc_mixer_control *mc = |
2334 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2335 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2336 | unsigned int reg = mc->reg; |
2337 | unsigned int reg2 = mc->rreg; | |
2338 | unsigned int shift = mc->shift; | |
4eaa9819 | 2339 | int max = mc->max; |
815ecf8d JS |
2340 | unsigned int mask = (1 << fls(max)) - 1; |
2341 | unsigned int invert = mc->invert; | |
db2a4165 | 2342 | int err; |
46f5822f | 2343 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2344 | |
2345 | val_mask = mask << shift; | |
2346 | val = (ucontrol->value.integer.value[0] & mask); | |
2347 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2348 | ||
2349 | if (invert) { | |
a7a4ac86 PZ |
2350 | val = max - val; |
2351 | val2 = max - val2; | |
db2a4165 FM |
2352 | } |
2353 | ||
2354 | val = val << shift; | |
2355 | val2 = val2 << shift; | |
2356 | ||
6c508c62 | 2357 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2358 | if (err < 0) |
db2a4165 FM |
2359 | return err; |
2360 | ||
6c508c62 | 2361 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2362 | return err; |
2363 | } | |
2364 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2365 | ||
e13ac2e9 MB |
2366 | /** |
2367 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2368 | * @kcontrol: mixer control | |
2369 | * @uinfo: control element information | |
2370 | * | |
2371 | * Callback to provide information about a signed mixer control. | |
2372 | * | |
2373 | * Returns 0 for success. | |
2374 | */ | |
2375 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2376 | struct snd_ctl_elem_info *uinfo) | |
2377 | { | |
4eaa9819 JS |
2378 | struct soc_mixer_control *mc = |
2379 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2380 | int platform_max; |
4eaa9819 | 2381 | int min = mc->min; |
e13ac2e9 | 2382 | |
d11bb4a9 PU |
2383 | if (!mc->platform_max) |
2384 | mc->platform_max = mc->max; | |
2385 | platform_max = mc->platform_max; | |
2386 | ||
e13ac2e9 MB |
2387 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2388 | uinfo->count = 2; | |
2389 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2390 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2391 | return 0; |
2392 | } | |
2393 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2394 | ||
2395 | /** | |
2396 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2397 | * @kcontrol: mixer control | |
ac11a2b3 | 2398 | * @ucontrol: control element information |
e13ac2e9 MB |
2399 | * |
2400 | * Callback to get the value of a signed mixer control. | |
2401 | * | |
2402 | * Returns 0 for success. | |
2403 | */ | |
2404 | int snd_soc_get_volsw_s8(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; | |
e13ac2e9 | 2409 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2410 | unsigned int reg = mc->reg; |
4eaa9819 | 2411 | int min = mc->min; |
e13ac2e9 MB |
2412 | int val = snd_soc_read(codec, reg); |
2413 | ||
2414 | ucontrol->value.integer.value[0] = | |
2415 | ((signed char)(val & 0xff))-min; | |
2416 | ucontrol->value.integer.value[1] = | |
2417 | ((signed char)((val >> 8) & 0xff))-min; | |
2418 | return 0; | |
2419 | } | |
2420 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2421 | ||
2422 | /** | |
2423 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2424 | * @kcontrol: mixer control | |
ac11a2b3 | 2425 | * @ucontrol: control element information |
e13ac2e9 MB |
2426 | * |
2427 | * Callback to set the value of a signed mixer control. | |
2428 | * | |
2429 | * Returns 0 for success. | |
2430 | */ | |
2431 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2432 | struct snd_ctl_elem_value *ucontrol) | |
2433 | { | |
4eaa9819 JS |
2434 | struct soc_mixer_control *mc = |
2435 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2436 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2437 | unsigned int reg = mc->reg; |
4eaa9819 | 2438 | int min = mc->min; |
46f5822f | 2439 | unsigned int val; |
e13ac2e9 MB |
2440 | |
2441 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2442 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2443 | ||
6c508c62 | 2444 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2445 | } |
2446 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2447 | ||
637d3847 PU |
2448 | /** |
2449 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2450 | * | |
2451 | * @codec: where to look for the control | |
2452 | * @name: Name of the control | |
2453 | * @max: new maximum limit | |
2454 | * | |
2455 | * Return 0 for success, else error. | |
2456 | */ | |
2457 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2458 | const char *name, int max) | |
2459 | { | |
f0fba2ad | 2460 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2461 | struct snd_kcontrol *kctl; |
2462 | struct soc_mixer_control *mc; | |
2463 | int found = 0; | |
2464 | int ret = -EINVAL; | |
2465 | ||
2466 | /* Sanity check for name and max */ | |
2467 | if (unlikely(!name || max <= 0)) | |
2468 | return -EINVAL; | |
2469 | ||
2470 | list_for_each_entry(kctl, &card->controls, list) { | |
2471 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2472 | found = 1; | |
2473 | break; | |
2474 | } | |
2475 | } | |
2476 | if (found) { | |
2477 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2478 | if (max <= mc->max) { | |
d11bb4a9 | 2479 | mc->platform_max = max; |
637d3847 PU |
2480 | ret = 0; |
2481 | } | |
2482 | } | |
2483 | return ret; | |
2484 | } | |
2485 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2486 | ||
b6f4bb38 | 2487 | /** |
2488 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2489 | * mixer info callback | |
2490 | * @kcontrol: mixer control | |
2491 | * @uinfo: control element information | |
2492 | * | |
2493 | * Returns 0 for success. | |
2494 | */ | |
2495 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2496 | struct snd_ctl_elem_info *uinfo) | |
2497 | { | |
2498 | struct soc_mixer_control *mc = | |
2499 | (struct soc_mixer_control *)kcontrol->private_value; | |
2500 | int max = mc->max; | |
2501 | int min = mc->min; | |
2502 | ||
2503 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2504 | uinfo->count = 2; | |
2505 | uinfo->value.integer.min = 0; | |
2506 | uinfo->value.integer.max = max-min; | |
2507 | ||
2508 | return 0; | |
2509 | } | |
2510 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2511 | ||
2512 | /** | |
2513 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2514 | * mixer get callback | |
2515 | * @kcontrol: mixer control | |
2516 | * @uinfo: control element information | |
2517 | * | |
2518 | * Returns 0 for success. | |
2519 | */ | |
2520 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2521 | struct snd_ctl_elem_value *ucontrol) | |
2522 | { | |
2523 | struct soc_mixer_control *mc = | |
2524 | (struct soc_mixer_control *)kcontrol->private_value; | |
2525 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2526 | unsigned int mask = (1<<mc->shift)-1; | |
2527 | int min = mc->min; | |
2528 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2529 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2530 | ||
20630c7f SL |
2531 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2532 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2533 | return 0; |
2534 | } | |
2535 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2536 | ||
2537 | /** | |
2538 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2539 | * mixer put callback | |
2540 | * @kcontrol: mixer control | |
2541 | * @uinfo: control element information | |
2542 | * | |
2543 | * Returns 0 for success. | |
2544 | */ | |
2545 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2546 | struct snd_ctl_elem_value *ucontrol) | |
2547 | { | |
2548 | struct soc_mixer_control *mc = | |
2549 | (struct soc_mixer_control *)kcontrol->private_value; | |
2550 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2551 | unsigned int mask = (1<<mc->shift)-1; | |
2552 | int min = mc->min; | |
2553 | int ret; | |
2554 | unsigned int val, valr, oval, ovalr; | |
2555 | ||
2556 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2557 | val &= mask; | |
2558 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2559 | valr &= mask; | |
2560 | ||
2561 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2562 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2563 | ||
2564 | ret = 0; | |
2565 | if (oval != val) { | |
2566 | ret = snd_soc_write(codec, mc->reg, val); | |
2567 | if (ret < 0) | |
f1df5aec | 2568 | return ret; |
b6f4bb38 | 2569 | } |
2570 | if (ovalr != valr) { | |
2571 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2572 | if (ret < 0) | |
f1df5aec | 2573 | return ret; |
b6f4bb38 | 2574 | } |
2575 | ||
2576 | return 0; | |
2577 | } | |
2578 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2579 | ||
8c6529db LG |
2580 | /** |
2581 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2582 | * @dai: DAI | |
2583 | * @clk_id: DAI specific clock ID | |
2584 | * @freq: new clock frequency in Hz | |
2585 | * @dir: new clock direction - input/output. | |
2586 | * | |
2587 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2588 | */ | |
2589 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2590 | unsigned int freq, int dir) | |
2591 | { | |
f0fba2ad LG |
2592 | if (dai->driver && dai->driver->ops->set_sysclk) |
2593 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2594 | else |
2595 | return -EINVAL; | |
2596 | } | |
2597 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2598 | ||
2599 | /** | |
2600 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2601 | * @dai: DAI | |
ac11a2b3 | 2602 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2603 | * @div: new clock divisor. |
2604 | * | |
2605 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2606 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2607 | * and frame clocks as low as possible to save system power. | |
2608 | */ | |
2609 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2610 | int div_id, int div) | |
2611 | { | |
f0fba2ad LG |
2612 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2613 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2614 | else |
2615 | return -EINVAL; | |
2616 | } | |
2617 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2618 | ||
2619 | /** | |
2620 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2621 | * @dai: DAI | |
2622 | * @pll_id: DAI specific PLL ID | |
85488037 | 2623 | * @source: DAI specific source for the PLL |
8c6529db LG |
2624 | * @freq_in: PLL input clock frequency in Hz |
2625 | * @freq_out: requested PLL output clock frequency in Hz | |
2626 | * | |
2627 | * Configures and enables PLL to generate output clock based on input clock. | |
2628 | */ | |
85488037 MB |
2629 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2630 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2631 | { |
f0fba2ad LG |
2632 | if (dai->driver && dai->driver->ops->set_pll) |
2633 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2634 | freq_in, freq_out); |
8c6529db LG |
2635 | else |
2636 | return -EINVAL; | |
2637 | } | |
2638 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2639 | ||
2640 | /** | |
2641 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2642 | * @dai: DAI | |
8c6529db LG |
2643 | * @fmt: SND_SOC_DAIFMT_ format value. |
2644 | * | |
2645 | * Configures the DAI hardware format and clocking. | |
2646 | */ | |
2647 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2648 | { | |
f0fba2ad LG |
2649 | if (dai->driver && dai->driver->ops->set_fmt) |
2650 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2651 | else |
2652 | return -EINVAL; | |
2653 | } | |
2654 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2655 | ||
2656 | /** | |
2657 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2658 | * @dai: DAI | |
a5479e38 DR |
2659 | * @tx_mask: bitmask representing active TX slots. |
2660 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2661 | * @slots: Number of slots in use. |
a5479e38 | 2662 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2663 | * |
2664 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2665 | * specific. | |
2666 | */ | |
2667 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2668 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2669 | { |
f0fba2ad LG |
2670 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2671 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2672 | slots, slot_width); |
8c6529db LG |
2673 | else |
2674 | return -EINVAL; | |
2675 | } | |
2676 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2677 | ||
472df3cb BS |
2678 | /** |
2679 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2680 | * @dai: DAI | |
2681 | * @tx_num: how many TX channels | |
2682 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2683 | * 0~num-1 uses | |
2684 | * @rx_num: how many RX channels | |
2685 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2686 | * 0~num-1 uses | |
2687 | * | |
2688 | * configure the relationship between channel number and TDM slot number. | |
2689 | */ | |
2690 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2691 | unsigned int tx_num, unsigned int *tx_slot, | |
2692 | unsigned int rx_num, unsigned int *rx_slot) | |
2693 | { | |
f0fba2ad LG |
2694 | if (dai->driver && dai->driver->ops->set_channel_map) |
2695 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2696 | rx_num, rx_slot); |
2697 | else | |
2698 | return -EINVAL; | |
2699 | } | |
2700 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2701 | ||
8c6529db LG |
2702 | /** |
2703 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2704 | * @dai: DAI | |
2705 | * @tristate: tristate enable | |
2706 | * | |
2707 | * Tristates the DAI so that others can use it. | |
2708 | */ | |
2709 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2710 | { | |
f0fba2ad LG |
2711 | if (dai->driver && dai->driver->ops->set_tristate) |
2712 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2713 | else |
2714 | return -EINVAL; | |
2715 | } | |
2716 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2717 | ||
2718 | /** | |
2719 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2720 | * @dai: DAI | |
2721 | * @mute: mute enable | |
2722 | * | |
2723 | * Mutes the DAI DAC. | |
2724 | */ | |
2725 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2726 | { | |
f0fba2ad LG |
2727 | if (dai->driver && dai->driver->ops->digital_mute) |
2728 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2729 | else |
2730 | return -EINVAL; | |
2731 | } | |
2732 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2733 | ||
c5af3a2e MB |
2734 | /** |
2735 | * snd_soc_register_card - Register a card with the ASoC core | |
2736 | * | |
ac11a2b3 | 2737 | * @card: Card to register |
c5af3a2e MB |
2738 | * |
2739 | * Note that currently this is an internal only function: it will be | |
2740 | * exposed to machine drivers after further backporting of ASoC v2 | |
2741 | * registration APIs. | |
2742 | */ | |
2743 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2744 | { | |
f0fba2ad LG |
2745 | int i; |
2746 | ||
c5af3a2e MB |
2747 | if (!card->name || !card->dev) |
2748 | return -EINVAL; | |
2749 | ||
f0fba2ad LG |
2750 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links, |
2751 | GFP_KERNEL); | |
2752 | if (card->rtd == NULL) | |
2753 | return -ENOMEM; | |
2754 | ||
2755 | for (i = 0; i < card->num_links; i++) | |
2756 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2757 | ||
c5af3a2e MB |
2758 | INIT_LIST_HEAD(&card->list); |
2759 | card->instantiated = 0; | |
f0fba2ad | 2760 | mutex_init(&card->mutex); |
c5af3a2e MB |
2761 | |
2762 | mutex_lock(&client_mutex); | |
2763 | list_add(&card->list, &card_list); | |
435c5e25 | 2764 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2765 | mutex_unlock(&client_mutex); |
2766 | ||
2767 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2768 | ||
2769 | return 0; | |
2770 | } | |
2771 | ||
2772 | /** | |
2773 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2774 | * | |
ac11a2b3 | 2775 | * @card: Card to unregister |
c5af3a2e MB |
2776 | * |
2777 | * Note that currently this is an internal only function: it will be | |
2778 | * exposed to machine drivers after further backporting of ASoC v2 | |
2779 | * registration APIs. | |
2780 | */ | |
2781 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2782 | { | |
2783 | mutex_lock(&client_mutex); | |
2784 | list_del(&card->list); | |
2785 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2786 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2787 | ||
2788 | return 0; | |
2789 | } | |
2790 | ||
f0fba2ad LG |
2791 | /* |
2792 | * Simplify DAI link configuration by removing ".-1" from device names | |
2793 | * and sanitizing names. | |
2794 | */ | |
2795 | static inline char *fmt_single_name(struct device *dev, int *id) | |
2796 | { | |
2797 | char *found, name[NAME_SIZE]; | |
2798 | int id1, id2; | |
2799 | ||
2800 | if (dev_name(dev) == NULL) | |
2801 | return NULL; | |
2802 | ||
2803 | strncpy(name, dev_name(dev), NAME_SIZE); | |
2804 | ||
2805 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2806 | found = strstr(name, dev->driver->name); | |
2807 | if (found) { | |
2808 | /* get ID */ | |
2809 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2810 | ||
2811 | /* discard ID from name if ID == -1 */ | |
2812 | if (*id == -1) | |
2813 | found[strlen(dev->driver->name)] = '\0'; | |
2814 | } | |
2815 | ||
2816 | } else { | |
2817 | /* I2C component devices are named "bus-addr" */ | |
2818 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2819 | char tmp[NAME_SIZE]; | |
2820 | ||
2821 | /* create unique ID number from I2C addr and bus */ | |
2822 | *id = ((id1 && 0xffff) << 16) + id2; | |
2823 | ||
2824 | /* sanitize component name for DAI link creation */ | |
2825 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
2826 | strncpy(name, tmp, NAME_SIZE); | |
2827 | } else | |
2828 | *id = 0; | |
2829 | } | |
2830 | ||
2831 | return kstrdup(name, GFP_KERNEL); | |
2832 | } | |
2833 | ||
2834 | /* | |
2835 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2836 | * any ".-1" and using the DAI name (instead of device name). | |
2837 | */ | |
2838 | static inline char *fmt_multiple_name(struct device *dev, | |
2839 | struct snd_soc_dai_driver *dai_drv) | |
2840 | { | |
2841 | if (dai_drv->name == NULL) { | |
2842 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2843 | dev_name(dev)); | |
2844 | return NULL; | |
2845 | } | |
2846 | ||
2847 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2848 | } | |
2849 | ||
9115171a MB |
2850 | /** |
2851 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2852 | * | |
ac11a2b3 | 2853 | * @dai: DAI to register |
9115171a | 2854 | */ |
f0fba2ad LG |
2855 | int snd_soc_register_dai(struct device *dev, |
2856 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2857 | { |
f0fba2ad LG |
2858 | struct snd_soc_dai *dai; |
2859 | ||
2860 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2861 | |
f0fba2ad LG |
2862 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2863 | if (dai == NULL) | |
2864 | return -ENOMEM; | |
9115171a | 2865 | |
f0fba2ad LG |
2866 | /* create DAI component name */ |
2867 | dai->name = fmt_single_name(dev, &dai->id); | |
2868 | if (dai->name == NULL) { | |
2869 | kfree(dai); | |
2870 | return -ENOMEM; | |
2871 | } | |
6335d055 | 2872 | |
f0fba2ad LG |
2873 | dai->dev = dev; |
2874 | dai->driver = dai_drv; | |
2875 | if (!dai->driver->ops) | |
2876 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
2877 | |
2878 | mutex_lock(&client_mutex); | |
2879 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2880 | snd_soc_instantiate_cards(); |
9115171a MB |
2881 | mutex_unlock(&client_mutex); |
2882 | ||
2883 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2884 | ||
2885 | return 0; | |
2886 | } | |
2887 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2888 | ||
2889 | /** | |
2890 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2891 | * | |
ac11a2b3 | 2892 | * @dai: DAI to unregister |
9115171a | 2893 | */ |
f0fba2ad | 2894 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 2895 | { |
f0fba2ad LG |
2896 | struct snd_soc_dai *dai; |
2897 | ||
2898 | list_for_each_entry(dai, &dai_list, list) { | |
2899 | if (dev == dai->dev) | |
2900 | goto found; | |
2901 | } | |
2902 | return; | |
2903 | ||
2904 | found: | |
9115171a MB |
2905 | mutex_lock(&client_mutex); |
2906 | list_del(&dai->list); | |
2907 | mutex_unlock(&client_mutex); | |
2908 | ||
2909 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
2910 | kfree(dai->name); |
2911 | kfree(dai); | |
9115171a MB |
2912 | } |
2913 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
2914 | ||
2915 | /** | |
2916 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
2917 | * | |
ac11a2b3 MB |
2918 | * @dai: Array of DAIs to register |
2919 | * @count: Number of DAIs | |
9115171a | 2920 | */ |
f0fba2ad LG |
2921 | int snd_soc_register_dais(struct device *dev, |
2922 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 2923 | { |
f0fba2ad LG |
2924 | struct snd_soc_dai *dai; |
2925 | int i, ret = 0; | |
2926 | ||
2927 | dev_dbg(dev, "dai register %s #%d\n", dev_name(dev), count); | |
9115171a MB |
2928 | |
2929 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
2930 | |
2931 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
2932 | if (dai == NULL) | |
2933 | return -ENOMEM; | |
2934 | ||
2935 | /* create DAI component name */ | |
2936 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
2937 | if (dai->name == NULL) { | |
2938 | kfree(dai); | |
2939 | ret = -EINVAL; | |
9115171a | 2940 | goto err; |
f0fba2ad LG |
2941 | } |
2942 | ||
2943 | dai->dev = dev; | |
2944 | dai->id = i; | |
2945 | dai->driver = &dai_drv[i]; | |
2946 | if (!dai->driver->ops) | |
2947 | dai->driver->ops = &null_dai_ops; | |
2948 | ||
2949 | mutex_lock(&client_mutex); | |
2950 | list_add(&dai->list, &dai_list); | |
2951 | mutex_unlock(&client_mutex); | |
2952 | ||
2953 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
2954 | } |
2955 | ||
f0fba2ad | 2956 | snd_soc_instantiate_cards(); |
9115171a MB |
2957 | return 0; |
2958 | ||
2959 | err: | |
2960 | for (i--; i >= 0; i--) | |
f0fba2ad | 2961 | snd_soc_unregister_dai(dev); |
9115171a MB |
2962 | |
2963 | return ret; | |
2964 | } | |
2965 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
2966 | ||
2967 | /** | |
2968 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
2969 | * | |
ac11a2b3 MB |
2970 | * @dai: Array of DAIs to unregister |
2971 | * @count: Number of DAIs | |
9115171a | 2972 | */ |
f0fba2ad | 2973 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
2974 | { |
2975 | int i; | |
2976 | ||
2977 | for (i = 0; i < count; i++) | |
f0fba2ad | 2978 | snd_soc_unregister_dai(dev); |
9115171a MB |
2979 | } |
2980 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
2981 | ||
12a48a8c MB |
2982 | /** |
2983 | * snd_soc_register_platform - Register a platform with the ASoC core | |
2984 | * | |
ac11a2b3 | 2985 | * @platform: platform to register |
12a48a8c | 2986 | */ |
f0fba2ad LG |
2987 | int snd_soc_register_platform(struct device *dev, |
2988 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 2989 | { |
f0fba2ad LG |
2990 | struct snd_soc_platform *platform; |
2991 | ||
2992 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
2993 | ||
2994 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
2995 | if (platform == NULL) | |
2996 | return -ENOMEM; | |
2997 | ||
2998 | /* create platform component name */ | |
2999 | platform->name = fmt_single_name(dev, &platform->id); | |
3000 | if (platform->name == NULL) { | |
3001 | kfree(platform); | |
3002 | return -ENOMEM; | |
3003 | } | |
12a48a8c | 3004 | |
f0fba2ad LG |
3005 | platform->dev = dev; |
3006 | platform->driver = platform_drv; | |
12a48a8c MB |
3007 | |
3008 | mutex_lock(&client_mutex); | |
3009 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3010 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3011 | mutex_unlock(&client_mutex); |
3012 | ||
3013 | pr_debug("Registered platform '%s'\n", platform->name); | |
3014 | ||
3015 | return 0; | |
3016 | } | |
3017 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3018 | ||
3019 | /** | |
3020 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3021 | * | |
ac11a2b3 | 3022 | * @platform: platform to unregister |
12a48a8c | 3023 | */ |
f0fba2ad | 3024 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3025 | { |
f0fba2ad LG |
3026 | struct snd_soc_platform *platform; |
3027 | ||
3028 | list_for_each_entry(platform, &platform_list, list) { | |
3029 | if (dev == platform->dev) | |
3030 | goto found; | |
3031 | } | |
3032 | return; | |
3033 | ||
3034 | found: | |
12a48a8c MB |
3035 | mutex_lock(&client_mutex); |
3036 | list_del(&platform->list); | |
3037 | mutex_unlock(&client_mutex); | |
3038 | ||
3039 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3040 | kfree(platform->name); |
3041 | kfree(platform); | |
12a48a8c MB |
3042 | } |
3043 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3044 | ||
151ab22c MB |
3045 | static u64 codec_format_map[] = { |
3046 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3047 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3048 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3049 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3050 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3051 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3052 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3053 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3054 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3055 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3056 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3057 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3058 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3059 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3060 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3061 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3062 | }; | |
3063 | ||
3064 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3065 | * the endianness of the data but we're using the CPU format | |
3066 | * definitions which do need to include endianness so we ensure that | |
3067 | * codec DAIs always have both big and little endian variants set. | |
3068 | */ | |
3069 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3070 | { | |
3071 | int i; | |
3072 | ||
3073 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3074 | if (stream->formats & codec_format_map[i]) | |
3075 | stream->formats |= codec_format_map[i]; | |
3076 | } | |
3077 | ||
0d0cf00a MB |
3078 | /** |
3079 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3080 | * | |
ac11a2b3 | 3081 | * @codec: codec to register |
0d0cf00a | 3082 | */ |
f0fba2ad LG |
3083 | int snd_soc_register_codec(struct device *dev, |
3084 | struct snd_soc_codec_driver *codec_drv, | |
3085 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3086 | { |
f0fba2ad LG |
3087 | struct snd_soc_codec *codec; |
3088 | int ret, i; | |
151ab22c | 3089 | |
f0fba2ad LG |
3090 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3091 | ||
3092 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3093 | if (codec == NULL) | |
3094 | return -ENOMEM; | |
0d0cf00a | 3095 | |
f0fba2ad LG |
3096 | /* create CODEC component name */ |
3097 | codec->name = fmt_single_name(dev, &codec->id); | |
3098 | if (codec->name == NULL) { | |
3099 | kfree(codec); | |
3100 | return -ENOMEM; | |
3101 | } | |
3102 | ||
3103 | /* allocate CODEC register cache */ | |
3104 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
0d0cf00a | 3105 | |
f0fba2ad LG |
3106 | if (codec_drv->reg_cache_default) |
3107 | codec->reg_cache = kmemdup(codec_drv->reg_cache_default, | |
3108 | codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL); | |
3109 | else | |
3110 | codec->reg_cache = kzalloc(codec_drv->reg_cache_size * | |
3111 | codec_drv->reg_word_size, GFP_KERNEL); | |
0d0cf00a | 3112 | |
f0fba2ad LG |
3113 | if (codec->reg_cache == NULL) { |
3114 | kfree(codec->name); | |
3115 | kfree(codec); | |
3116 | return -ENOMEM; | |
3117 | } | |
151ab22c MB |
3118 | } |
3119 | ||
f0fba2ad LG |
3120 | codec->dev = dev; |
3121 | codec->driver = codec_drv; | |
3122 | codec->bias_level = SND_SOC_BIAS_OFF; | |
3123 | codec->num_dai = num_dai; | |
3124 | mutex_init(&codec->mutex); | |
3125 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
3126 | INIT_LIST_HEAD(&codec->dapm_paths); | |
3127 | ||
3128 | for (i = 0; i < num_dai; i++) { | |
3129 | fixup_codec_formats(&dai_drv[i].playback); | |
3130 | fixup_codec_formats(&dai_drv[i].capture); | |
3131 | } | |
3132 | ||
3133 | /* register DAIs */ | |
3134 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3135 | if (ret < 0) | |
3136 | goto error; | |
3137 | ||
0d0cf00a MB |
3138 | mutex_lock(&client_mutex); |
3139 | list_add(&codec->list, &codec_list); | |
3140 | snd_soc_instantiate_cards(); | |
3141 | mutex_unlock(&client_mutex); | |
3142 | ||
3143 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3144 | return 0; |
f0fba2ad LG |
3145 | |
3146 | error: | |
3147 | for (i--; i >= 0; i--) | |
3148 | snd_soc_unregister_dai(dev); | |
3149 | ||
3150 | if (codec->reg_cache) | |
3151 | kfree(codec->reg_cache); | |
3152 | kfree(codec->name); | |
3153 | kfree(codec); | |
3154 | return ret; | |
0d0cf00a MB |
3155 | } |
3156 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3157 | ||
3158 | /** | |
3159 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3160 | * | |
ac11a2b3 | 3161 | * @codec: codec to unregister |
0d0cf00a | 3162 | */ |
f0fba2ad | 3163 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3164 | { |
f0fba2ad LG |
3165 | struct snd_soc_codec *codec; |
3166 | int i; | |
3167 | ||
3168 | list_for_each_entry(codec, &codec_list, list) { | |
3169 | if (dev == codec->dev) | |
3170 | goto found; | |
3171 | } | |
3172 | return; | |
3173 | ||
3174 | found: | |
3175 | for (i = 0; i < codec->num_dai; i++) | |
3176 | snd_soc_unregister_dai(dev); | |
3177 | ||
0d0cf00a MB |
3178 | mutex_lock(&client_mutex); |
3179 | list_del(&codec->list); | |
3180 | mutex_unlock(&client_mutex); | |
3181 | ||
3182 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad LG |
3183 | |
3184 | if (codec->reg_cache) | |
3185 | kfree(codec->reg_cache); | |
3186 | kfree(codec); | |
0d0cf00a MB |
3187 | } |
3188 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3189 | ||
c9b3a40f | 3190 | static int __init snd_soc_init(void) |
db2a4165 | 3191 | { |
384c89e2 MB |
3192 | #ifdef CONFIG_DEBUG_FS |
3193 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3194 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3195 | printk(KERN_WARNING | |
3196 | "ASoC: Failed to create debugfs directory\n"); | |
3197 | debugfs_root = NULL; | |
3198 | } | |
3199 | #endif | |
3200 | ||
db2a4165 FM |
3201 | return platform_driver_register(&soc_driver); |
3202 | } | |
3203 | ||
7d8c16a6 | 3204 | static void __exit snd_soc_exit(void) |
db2a4165 | 3205 | { |
384c89e2 MB |
3206 | #ifdef CONFIG_DEBUG_FS |
3207 | debugfs_remove_recursive(debugfs_root); | |
3208 | #endif | |
3ff3f64b | 3209 | platform_driver_unregister(&soc_driver); |
db2a4165 FM |
3210 | } |
3211 | ||
3212 | module_init(snd_soc_init); | |
3213 | module_exit(snd_soc_exit); | |
3214 | ||
3215 | /* Module information */ | |
d331124d | 3216 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3217 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3218 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3219 | MODULE_ALIAS("platform:soc-audio"); |