Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
57295073 LPC |
50 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
51 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
52 | const char *control, | |
53 | int (*connected)(struct snd_soc_dapm_widget *source, | |
54 | struct snd_soc_dapm_widget *sink)); | |
55 | static struct snd_soc_dapm_widget * | |
56 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
57 | const struct snd_soc_dapm_widget *widget); | |
58 | ||
2b97eabc RP |
59 | /* dapm power sequences - make this per codec in the future */ |
60 | static int dapm_up_seq[] = { | |
38357ab2 | 61 | [snd_soc_dapm_pre] = 0, |
62ea874a | 62 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 63 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
64 | [snd_soc_dapm_supply] = 2, |
65 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 66 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
67 | [snd_soc_dapm_dai_in] = 4, |
68 | [snd_soc_dapm_dai_out] = 4, | |
69 | [snd_soc_dapm_aif_in] = 4, | |
70 | [snd_soc_dapm_aif_out] = 4, | |
71 | [snd_soc_dapm_mic] = 5, | |
72 | [snd_soc_dapm_mux] = 6, | |
1dd275b6 MB |
73 | [snd_soc_dapm_dac] = 7, |
74 | [snd_soc_dapm_switch] = 8, | |
75 | [snd_soc_dapm_mixer] = 8, | |
76 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
77 | [snd_soc_dapm_pga] = 9, | |
78 | [snd_soc_dapm_adc] = 10, | |
79 | [snd_soc_dapm_out_drv] = 11, | |
80 | [snd_soc_dapm_hp] = 11, | |
81 | [snd_soc_dapm_spk] = 11, | |
82 | [snd_soc_dapm_line] = 11, | |
83 | [snd_soc_dapm_kcontrol] = 12, | |
84 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 85 | }; |
ca9c1aae | 86 | |
2b97eabc | 87 | static int dapm_down_seq[] = { |
38357ab2 | 88 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
89 | [snd_soc_dapm_kcontrol] = 1, |
90 | [snd_soc_dapm_adc] = 2, | |
91 | [snd_soc_dapm_hp] = 3, | |
92 | [snd_soc_dapm_spk] = 3, | |
93 | [snd_soc_dapm_line] = 3, | |
94 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 95 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 96 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 97 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
98 | [snd_soc_dapm_mixer] = 5, |
99 | [snd_soc_dapm_dac] = 6, | |
100 | [snd_soc_dapm_mic] = 7, | |
101 | [snd_soc_dapm_micbias] = 8, | |
102 | [snd_soc_dapm_mux] = 9, | |
010ff262 MB |
103 | [snd_soc_dapm_aif_in] = 10, |
104 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
105 | [snd_soc_dapm_dai_in] = 10, |
106 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 107 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 108 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
109 | [snd_soc_dapm_clock_supply] = 13, |
110 | [snd_soc_dapm_regulator_supply] = 13, | |
111 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
112 | }; |
113 | ||
f9fa2b18 MB |
114 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
115 | { | |
116 | if (dapm->card && dapm->card->instantiated) | |
117 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
118 | } | |
119 | ||
12ef193d | 120 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
121 | { |
122 | if (pop_time) | |
123 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
124 | } | |
125 | ||
fd8d3bc0 | 126 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
127 | { |
128 | va_list args; | |
fd8d3bc0 | 129 | char *buf; |
15e4c72f | 130 | |
fd8d3bc0 JN |
131 | if (!pop_time) |
132 | return; | |
15e4c72f | 133 | |
fd8d3bc0 JN |
134 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
135 | if (buf == NULL) | |
136 | return; | |
15e4c72f | 137 | |
fd8d3bc0 JN |
138 | va_start(args, fmt); |
139 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 140 | dev_info(dev, "%s", buf); |
15e4c72f | 141 | va_end(args); |
fd8d3bc0 JN |
142 | |
143 | kfree(buf); | |
15e4c72f MB |
144 | } |
145 | ||
db432b41 MB |
146 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
147 | { | |
148 | return !list_empty(&w->dirty); | |
149 | } | |
150 | ||
492c0a18 | 151 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 152 | { |
f9fa2b18 MB |
153 | dapm_assert_locked(w->dapm); |
154 | ||
75c1f891 MB |
155 | if (!dapm_dirty_widget(w)) { |
156 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
157 | w->name, reason); | |
db432b41 | 158 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 159 | } |
db432b41 MB |
160 | } |
161 | ||
e2d32ff6 MB |
162 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
163 | { | |
164 | struct snd_soc_card *card = dapm->card; | |
165 | struct snd_soc_dapm_widget *w; | |
166 | ||
167 | mutex_lock(&card->dapm_mutex); | |
168 | ||
169 | list_for_each_entry(w, &card->widgets, list) { | |
170 | switch (w->id) { | |
171 | case snd_soc_dapm_input: | |
172 | case snd_soc_dapm_output: | |
173 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
174 | break; | |
175 | default: | |
176 | break; | |
177 | } | |
178 | } | |
179 | ||
180 | mutex_unlock(&card->dapm_mutex); | |
181 | } | |
182 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
183 | ||
2b97eabc | 184 | /* create a new dapm widget */ |
88cb4290 | 185 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
186 | const struct snd_soc_dapm_widget *_widget) |
187 | { | |
88cb4290 | 188 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
189 | } |
190 | ||
e84357f7 | 191 | struct dapm_kcontrol_data { |
cf7c1de2 | 192 | unsigned int value; |
57295073 | 193 | struct snd_soc_dapm_widget *widget; |
5106b92f | 194 | struct list_head paths; |
2c75bdf3 | 195 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
196 | }; |
197 | ||
198 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
199 | struct snd_kcontrol *kcontrol) | |
200 | { | |
201 | struct dapm_kcontrol_data *data; | |
57295073 | 202 | struct soc_mixer_control *mc; |
e84357f7 | 203 | |
2c75bdf3 | 204 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
205 | if (!data) { |
206 | dev_err(widget->dapm->dev, | |
207 | "ASoC: can't allocate kcontrol data for %s\n", | |
208 | widget->name); | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
5106b92f | 212 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 213 | |
57295073 LPC |
214 | switch (widget->id) { |
215 | case snd_soc_dapm_switch: | |
216 | case snd_soc_dapm_mixer: | |
217 | case snd_soc_dapm_mixer_named_ctl: | |
218 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
219 | ||
220 | if (mc->autodisable) { | |
221 | struct snd_soc_dapm_widget template; | |
222 | ||
223 | memset(&template, 0, sizeof(template)); | |
224 | template.reg = mc->reg; | |
225 | template.mask = (1 << fls(mc->max)) - 1; | |
226 | template.shift = mc->shift; | |
227 | if (mc->invert) | |
228 | template.off_val = mc->max; | |
229 | else | |
230 | template.off_val = 0; | |
231 | template.on_val = template.off_val; | |
232 | template.id = snd_soc_dapm_kcontrol; | |
233 | template.name = kcontrol->id.name; | |
234 | ||
2daabd78 LPC |
235 | data->value = template.on_val; |
236 | ||
57295073 LPC |
237 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
238 | &template); | |
239 | if (!data->widget) { | |
240 | kfree(data); | |
241 | return -ENOMEM; | |
242 | } | |
243 | } | |
244 | break; | |
245 | default: | |
246 | break; | |
247 | } | |
248 | ||
e84357f7 LPC |
249 | kcontrol->private_data = data; |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
254 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
255 | { | |
256 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 257 | kfree(data->wlist); |
e84357f7 LPC |
258 | kfree(data); |
259 | } | |
260 | ||
261 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
262 | const struct snd_kcontrol *kcontrol) | |
263 | { | |
264 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
265 | ||
2c75bdf3 | 266 | return data->wlist; |
e84357f7 LPC |
267 | } |
268 | ||
269 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
270 | struct snd_soc_dapm_widget *widget) | |
271 | { | |
272 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
273 | struct snd_soc_dapm_widget_list *new_wlist; |
274 | unsigned int n; | |
e84357f7 | 275 | |
2c75bdf3 LPC |
276 | if (data->wlist) |
277 | n = data->wlist->num_widgets + 1; | |
278 | else | |
279 | n = 1; | |
280 | ||
281 | new_wlist = krealloc(data->wlist, | |
282 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
283 | if (!new_wlist) | |
e84357f7 LPC |
284 | return -ENOMEM; |
285 | ||
2c75bdf3 LPC |
286 | new_wlist->widgets[n - 1] = widget; |
287 | new_wlist->num_widgets = n; | |
e84357f7 | 288 | |
2c75bdf3 | 289 | data->wlist = new_wlist; |
e84357f7 LPC |
290 | |
291 | return 0; | |
292 | } | |
293 | ||
5106b92f LPC |
294 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
295 | struct snd_soc_dapm_path *path) | |
296 | { | |
297 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
298 | ||
299 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
300 | |
301 | if (data->widget) { | |
302 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
303 | path->source, NULL, NULL); | |
304 | } | |
305 | } | |
306 | ||
307 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
308 | { | |
309 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
310 | ||
311 | if (!data->widget) | |
312 | return true; | |
313 | ||
314 | return data->widget->power; | |
5106b92f LPC |
315 | } |
316 | ||
317 | static struct list_head *dapm_kcontrol_get_path_list( | |
318 | const struct snd_kcontrol *kcontrol) | |
319 | { | |
320 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
321 | ||
322 | return &data->paths; | |
323 | } | |
324 | ||
325 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
326 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
327 | list_kcontrol) | |
328 | ||
cf7c1de2 LPC |
329 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
330 | { | |
331 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
332 | ||
333 | return data->value; | |
334 | } | |
335 | ||
336 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
337 | unsigned int value) | |
338 | { | |
339 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
340 | ||
341 | if (data->value == value) | |
342 | return false; | |
343 | ||
57295073 LPC |
344 | if (data->widget) |
345 | data->widget->on_val = value; | |
346 | ||
cf7c1de2 LPC |
347 | data->value = value; |
348 | ||
349 | return true; | |
350 | } | |
351 | ||
eee5d7f9 LPC |
352 | /** |
353 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
354 | * @kcontrol: The kcontrol | |
355 | */ | |
356 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
357 | { | |
e84357f7 | 358 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
359 | } |
360 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
361 | ||
6c120e19 LG |
362 | static void dapm_reset(struct snd_soc_card *card) |
363 | { | |
364 | struct snd_soc_dapm_widget *w; | |
365 | ||
f9fa2b18 MB |
366 | lockdep_assert_held(&card->dapm_mutex); |
367 | ||
6c120e19 LG |
368 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
369 | ||
370 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 371 | w->new_power = w->power; |
6c120e19 LG |
372 | w->power_checked = false; |
373 | w->inputs = -1; | |
374 | w->outputs = -1; | |
375 | } | |
376 | } | |
377 | ||
f7d3c170 ASL |
378 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg, |
379 | unsigned int *value) | |
0445bdf4 | 380 | { |
e2c330b9 LPC |
381 | if (!w->dapm->component) |
382 | return -EIO; | |
383 | return snd_soc_component_read(w->dapm->component, reg, value); | |
49575fb5 LG |
384 | } |
385 | ||
23d5442b | 386 | static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, |
e2c330b9 | 387 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 388 | { |
e2c330b9 LPC |
389 | if (!w->dapm->component) |
390 | return -EIO; | |
391 | return snd_soc_component_update_bits_async(w->dapm->component, reg, | |
392 | mask, value); | |
49575fb5 LG |
393 | } |
394 | ||
eb270e98 MB |
395 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
396 | { | |
e2c330b9 LPC |
397 | if (dapm->component) |
398 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
399 | } |
400 | ||
452c5eaa MB |
401 | /** |
402 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 403 | * @dapm: DAPM context |
452c5eaa MB |
404 | * @level: level to configure |
405 | * | |
406 | * Configure the bias (power) levels for the SoC audio device. | |
407 | * | |
408 | * Returns 0 for success else error. | |
409 | */ | |
ed5a4c47 | 410 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 411 | enum snd_soc_bias_level level) |
452c5eaa | 412 | { |
ed5a4c47 | 413 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
414 | int ret = 0; |
415 | ||
84e90930 MB |
416 | trace_snd_soc_bias_level_start(card, level); |
417 | ||
f0fba2ad | 418 | if (card && card->set_bias_level) |
d4c6005f | 419 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
420 | if (ret != 0) |
421 | goto out; | |
422 | ||
cc4c670a MB |
423 | if (dapm->codec) { |
424 | if (dapm->codec->driver->set_bias_level) | |
425 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
426 | level); | |
d8c3bb91 MB |
427 | else |
428 | dapm->bias_level = level; | |
4e872a46 | 429 | } else if (!card || dapm != &card->dapm) { |
4123128e | 430 | dapm->bias_level = level; |
4e872a46 | 431 | } |
4123128e | 432 | |
171ec6b0 MB |
433 | if (ret != 0) |
434 | goto out; | |
435 | ||
436 | if (card && card->set_bias_level_post) | |
d4c6005f | 437 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 438 | out: |
84e90930 MB |
439 | trace_snd_soc_bias_level_done(card, level); |
440 | ||
452c5eaa MB |
441 | return ret; |
442 | } | |
443 | ||
74b8f955 | 444 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 445 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
446 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
447 | struct snd_soc_dapm_path *path, const char *control_name, | |
448 | const struct snd_kcontrol_new *kcontrol) | |
2b97eabc | 449 | { |
2b97eabc | 450 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 451 | unsigned int val, item; |
2b97eabc | 452 | int i; |
24ff33ac | 453 | |
234c0b8f LPC |
454 | if (e->reg != SND_SOC_NOPM) { |
455 | soc_widget_read(dest, e->reg, &val); | |
456 | val = (val >> e->shift_l) & e->mask; | |
457 | item = snd_soc_enum_val_to_item(e, val); | |
458 | } else { | |
24ff33ac DP |
459 | /* since a virtual mux has no backing registers to |
460 | * decide which path to connect, it will try to match | |
461 | * with the first enumeration. This is to ensure | |
462 | * that the default mux choice (the first) will be | |
463 | * correctly powered up during initialization. | |
464 | */ | |
234c0b8f | 465 | item = 0; |
24ff33ac | 466 | } |
2e72f8e3 | 467 | |
9a8d38db | 468 | for (i = 0; i < e->items; i++) { |
2b97eabc | 469 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 470 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
471 | list_add(&path->list_sink, &dest->sources); |
472 | list_add(&path->list_source, &src->sinks); | |
473 | path->name = (char*)e->texts[i]; | |
234c0b8f LPC |
474 | if (i == item) |
475 | path->connect = 1; | |
476 | else | |
477 | path->connect = 0; | |
2b97eabc RP |
478 | return 0; |
479 | } | |
480 | } | |
481 | ||
482 | return -ENODEV; | |
483 | } | |
484 | ||
234c0b8f LPC |
485 | /* set up initial codec paths */ |
486 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_widget *w, | |
487 | struct snd_soc_dapm_path *p, int i) | |
488 | { | |
489 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
490 | w->kcontrol_news[i].private_value; | |
491 | unsigned int reg = mc->reg; | |
492 | unsigned int shift = mc->shift; | |
493 | unsigned int max = mc->max; | |
494 | unsigned int mask = (1 << fls(max)) - 1; | |
495 | unsigned int invert = mc->invert; | |
496 | unsigned int val; | |
497 | ||
498 | if (reg != SND_SOC_NOPM) { | |
499 | soc_widget_read(w, reg, &val); | |
500 | val = (val >> shift) & mask; | |
501 | if (invert) | |
502 | val = max - val; | |
503 | p->connect = !!val; | |
504 | } else { | |
505 | p->connect = 0; | |
506 | } | |
507 | } | |
508 | ||
74b8f955 | 509 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 510 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
511 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
512 | struct snd_soc_dapm_path *path, const char *control_name) | |
513 | { | |
514 | int i; | |
515 | ||
516 | /* search for mixer kcontrol */ | |
517 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 518 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 519 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
520 | list_add(&path->list_sink, &dest->sources); |
521 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 522 | path->name = dest->kcontrol_news[i].name; |
234c0b8f | 523 | dapm_set_mixer_path_status(dest, path, i); |
2b97eabc RP |
524 | return 0; |
525 | } | |
526 | } | |
527 | return -ENODEV; | |
528 | } | |
529 | ||
af46800b | 530 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 531 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
532 | const struct snd_kcontrol_new *kcontrol_new, |
533 | struct snd_kcontrol **kcontrol) | |
534 | { | |
535 | struct snd_soc_dapm_widget *w; | |
536 | int i; | |
537 | ||
538 | *kcontrol = NULL; | |
539 | ||
540 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
541 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
542 | continue; | |
af46800b SW |
543 | for (i = 0; i < w->num_kcontrols; i++) { |
544 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
545 | if (w->kcontrols) | |
546 | *kcontrol = w->kcontrols[i]; | |
547 | return 1; | |
548 | } | |
549 | } | |
550 | } | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
85762e71 SW |
555 | /* |
556 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
557 | * create it. Either way, add the widget into the control's widget list | |
558 | */ | |
559 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 560 | int kci) |
2b97eabc | 561 | { |
4b80b8c2 | 562 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 563 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 564 | const char *prefix; |
85762e71 SW |
565 | size_t prefix_len; |
566 | int shared; | |
567 | struct snd_kcontrol *kcontrol; | |
85762e71 | 568 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
569 | char *long_name; |
570 | const char *name; | |
571 | int ret; | |
efb7ac3f MB |
572 | |
573 | if (dapm->codec) | |
574 | prefix = dapm->codec->name_prefix; | |
575 | else | |
576 | prefix = NULL; | |
2b97eabc | 577 | |
3e5ff4df MB |
578 | if (prefix) |
579 | prefix_len = strlen(prefix) + 1; | |
580 | else | |
581 | prefix_len = 0; | |
582 | ||
85762e71 SW |
583 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
584 | &kcontrol); | |
2b97eabc | 585 | |
85762e71 SW |
586 | if (!kcontrol) { |
587 | if (shared) { | |
588 | wname_in_long_name = false; | |
589 | kcname_in_long_name = true; | |
590 | } else { | |
591 | switch (w->id) { | |
592 | case snd_soc_dapm_switch: | |
593 | case snd_soc_dapm_mixer: | |
594 | wname_in_long_name = true; | |
595 | kcname_in_long_name = true; | |
596 | break; | |
597 | case snd_soc_dapm_mixer_named_ctl: | |
598 | wname_in_long_name = false; | |
599 | kcname_in_long_name = true; | |
600 | break; | |
601 | case snd_soc_dapm_mux: | |
85762e71 SW |
602 | wname_in_long_name = true; |
603 | kcname_in_long_name = false; | |
604 | break; | |
605 | default: | |
85762e71 | 606 | return -EINVAL; |
82cd8764 | 607 | } |
85762e71 SW |
608 | } |
609 | ||
610 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
611 | /* |
612 | * The control will get a prefix from the control | |
613 | * creation process but we're also using the same | |
614 | * prefix for widgets so cut the prefix off the | |
615 | * front of the widget name. | |
ca9c1aae | 616 | */ |
2b581074 | 617 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
618 | w->name + prefix_len, |
619 | w->kcontrol_news[kci].name); | |
e84357f7 | 620 | if (long_name == NULL) |
2b581074 | 621 | return -ENOMEM; |
85762e71 SW |
622 | |
623 | name = long_name; | |
624 | } else if (wname_in_long_name) { | |
625 | long_name = NULL; | |
626 | name = w->name + prefix_len; | |
627 | } else { | |
628 | long_name = NULL; | |
629 | name = w->kcontrol_news[kci].name; | |
630 | } | |
ca9c1aae | 631 | |
e84357f7 | 632 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 633 | prefix); |
656ca9d3 | 634 | kfree(long_name); |
9356e9d5 LPC |
635 | if (!kcontrol) |
636 | return -ENOMEM; | |
637 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
638 | |
639 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
640 | if (ret) { | |
641 | snd_ctl_free_one(kcontrol); | |
642 | return ret; | |
643 | } | |
644 | ||
85762e71 SW |
645 | ret = snd_ctl_add(card, kcontrol); |
646 | if (ret < 0) { | |
647 | dev_err(dapm->dev, | |
648 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
649 | w->name, name, ret); | |
85762e71 SW |
650 | return ret; |
651 | } | |
85762e71 | 652 | } |
2b97eabc | 653 | |
2c75bdf3 LPC |
654 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
655 | if (ret) | |
656 | return ret; | |
657 | ||
85762e71 | 658 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 659 | |
85762e71 SW |
660 | return 0; |
661 | } | |
219b93f5 | 662 | |
85762e71 SW |
663 | /* create new dapm mixer control */ |
664 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
665 | { | |
666 | int i, ret; | |
667 | struct snd_soc_dapm_path *path; | |
668 | ||
669 | /* add kcontrol */ | |
670 | for (i = 0; i < w->num_kcontrols; i++) { | |
671 | /* match name */ | |
672 | list_for_each_entry(path, &w->sources, list_sink) { | |
673 | /* mixer/mux paths name must match control name */ | |
674 | if (path->name != (char *)w->kcontrol_news[i].name) | |
675 | continue; | |
676 | ||
677 | if (w->kcontrols[i]) { | |
5106b92f | 678 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 679 | continue; |
2b97eabc | 680 | } |
85762e71 | 681 | |
946d92a1 | 682 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
683 | if (ret < 0) |
684 | return ret; | |
946d92a1 MB |
685 | |
686 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
687 | } |
688 | } | |
85762e71 SW |
689 | |
690 | return 0; | |
2b97eabc RP |
691 | } |
692 | ||
693 | /* create new dapm mux control */ | |
4b80b8c2 | 694 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 695 | { |
4b80b8c2 | 696 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 697 | struct snd_soc_dapm_path *path; |
af46800b | 698 | int ret; |
2b97eabc | 699 | |
af46800b SW |
700 | if (w->num_kcontrols != 1) { |
701 | dev_err(dapm->dev, | |
30a6a1a4 | 702 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 703 | w->name); |
2b97eabc RP |
704 | return -EINVAL; |
705 | } | |
706 | ||
fe581391 | 707 | if (list_empty(&w->sources)) { |
85762e71 SW |
708 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
709 | return -EINVAL; | |
af46800b | 710 | } |
ce6120cc | 711 | |
946d92a1 | 712 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
713 | if (ret < 0) |
714 | return ret; | |
fad59888 | 715 | |
2b97eabc | 716 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 717 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 718 | |
af46800b | 719 | return 0; |
2b97eabc RP |
720 | } |
721 | ||
722 | /* create new dapm volume control */ | |
4b80b8c2 | 723 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 724 | { |
a6c65736 | 725 | if (w->num_kcontrols) |
f7d41ae8 | 726 | dev_err(w->dapm->dev, |
30a6a1a4 | 727 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 728 | |
a6c65736 | 729 | return 0; |
2b97eabc RP |
730 | } |
731 | ||
732 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
733 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
734 | struct list_head *sink) | |
2b97eabc RP |
735 | { |
736 | struct snd_soc_dapm_path *p; | |
737 | ||
1059ecfa RT |
738 | list_for_each_entry(p, sink, list_source) { |
739 | if (p->walked) { | |
740 | p->walked = 0; | |
741 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
742 | } | |
743 | } | |
2b97eabc RP |
744 | } |
745 | ||
1059ecfa RT |
746 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
747 | struct list_head *source) | |
2b97eabc RP |
748 | { |
749 | struct snd_soc_dapm_path *p; | |
750 | ||
1059ecfa RT |
751 | list_for_each_entry(p, source, list_sink) { |
752 | if (p->walked) { | |
753 | p->walked = 0; | |
754 | dapm_clear_walk_input(dapm, &p->source->sources); | |
755 | } | |
756 | } | |
2b97eabc RP |
757 | } |
758 | ||
1059ecfa | 759 | |
9949788b MB |
760 | /* We implement power down on suspend by checking the power state of |
761 | * the ALSA card - when we are suspending the ALSA state for the card | |
762 | * is set to D3. | |
763 | */ | |
764 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
765 | { | |
12ea2c78 | 766 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 767 | |
f0fba2ad | 768 | switch (level) { |
9949788b MB |
769 | case SNDRV_CTL_POWER_D3hot: |
770 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 771 | if (widget->ignore_suspend) |
30a6a1a4 | 772 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 773 | widget->name); |
1547aba9 | 774 | return widget->ignore_suspend; |
9949788b MB |
775 | default: |
776 | return 1; | |
777 | } | |
778 | } | |
779 | ||
ec2e3031 LG |
780 | /* add widget to list if it's not already in the list */ |
781 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
782 | struct snd_soc_dapm_widget *w) | |
783 | { | |
784 | struct snd_soc_dapm_widget_list *wlist; | |
785 | int wlistsize, wlistentries, i; | |
786 | ||
787 | if (*list == NULL) | |
788 | return -EINVAL; | |
789 | ||
790 | wlist = *list; | |
791 | ||
792 | /* is this widget already in the list */ | |
793 | for (i = 0; i < wlist->num_widgets; i++) { | |
794 | if (wlist->widgets[i] == w) | |
795 | return 0; | |
796 | } | |
797 | ||
798 | /* allocate some new space */ | |
799 | wlistentries = wlist->num_widgets + 1; | |
800 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
801 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
802 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
803 | if (*list == NULL) { | |
30a6a1a4 | 804 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
805 | w->name); |
806 | return -ENOMEM; | |
807 | } | |
808 | wlist = *list; | |
809 | ||
810 | /* insert the widget */ | |
30a6a1a4 | 811 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
812 | w->name, wlist->num_widgets); |
813 | ||
814 | wlist->widgets[wlist->num_widgets] = w; | |
815 | wlist->num_widgets++; | |
816 | return 1; | |
817 | } | |
818 | ||
2b97eabc RP |
819 | /* |
820 | * Recursively check for a completed path to an active or physically connected | |
821 | * output widget. Returns number of complete paths. | |
822 | */ | |
ec2e3031 LG |
823 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
824 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
825 | { |
826 | struct snd_soc_dapm_path *path; | |
827 | int con = 0; | |
828 | ||
024dc078 MB |
829 | if (widget->outputs >= 0) |
830 | return widget->outputs; | |
831 | ||
de02d078 MB |
832 | DAPM_UPDATE_STAT(widget, path_checks); |
833 | ||
62ea874a MB |
834 | switch (widget->id) { |
835 | case snd_soc_dapm_supply: | |
836 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 837 | case snd_soc_dapm_clock_supply: |
57295073 | 838 | case snd_soc_dapm_kcontrol: |
246d0a17 | 839 | return 0; |
62ea874a MB |
840 | default: |
841 | break; | |
842 | } | |
246d0a17 | 843 | |
010ff262 MB |
844 | switch (widget->id) { |
845 | case snd_soc_dapm_adc: | |
846 | case snd_soc_dapm_aif_out: | |
4616274d | 847 | case snd_soc_dapm_dai_out: |
024dc078 MB |
848 | if (widget->active) { |
849 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
850 | return widget->outputs; | |
851 | } | |
010ff262 MB |
852 | default: |
853 | break; | |
854 | } | |
2b97eabc RP |
855 | |
856 | if (widget->connected) { | |
857 | /* connected pin ? */ | |
024dc078 MB |
858 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
859 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
860 | return widget->outputs; | |
861 | } | |
2b97eabc RP |
862 | |
863 | /* connected jack or spk ? */ | |
024dc078 MB |
864 | if (widget->id == snd_soc_dapm_hp || |
865 | widget->id == snd_soc_dapm_spk || | |
866 | (widget->id == snd_soc_dapm_line && | |
867 | !list_empty(&widget->sources))) { | |
868 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
869 | return widget->outputs; | |
870 | } | |
2b97eabc RP |
871 | } |
872 | ||
873 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
874 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
875 | ||
bf3a9e13 MB |
876 | if (path->weak) |
877 | continue; | |
878 | ||
8af294b4 MB |
879 | if (path->walking) |
880 | return 1; | |
881 | ||
2b97eabc RP |
882 | if (path->walked) |
883 | continue; | |
884 | ||
ec2e3031 LG |
885 | trace_snd_soc_dapm_output_path(widget, path); |
886 | ||
2b97eabc RP |
887 | if (path->sink && path->connect) { |
888 | path->walked = 1; | |
8af294b4 | 889 | path->walking = 1; |
ec2e3031 LG |
890 | |
891 | /* do we need to add this widget to the list ? */ | |
892 | if (list) { | |
893 | int err; | |
894 | err = dapm_list_add_widget(list, path->sink); | |
895 | if (err < 0) { | |
30a6a1a4 LG |
896 | dev_err(widget->dapm->dev, |
897 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 898 | widget->name); |
8af294b4 | 899 | path->walking = 0; |
ec2e3031 LG |
900 | return con; |
901 | } | |
902 | } | |
903 | ||
904 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
905 | |
906 | path->walking = 0; | |
2b97eabc RP |
907 | } |
908 | } | |
909 | ||
024dc078 MB |
910 | widget->outputs = con; |
911 | ||
2b97eabc RP |
912 | return con; |
913 | } | |
914 | ||
915 | /* | |
916 | * Recursively check for a completed path to an active or physically connected | |
917 | * input widget. Returns number of complete paths. | |
918 | */ | |
ec2e3031 LG |
919 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
920 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
921 | { |
922 | struct snd_soc_dapm_path *path; | |
923 | int con = 0; | |
924 | ||
024dc078 MB |
925 | if (widget->inputs >= 0) |
926 | return widget->inputs; | |
927 | ||
de02d078 MB |
928 | DAPM_UPDATE_STAT(widget, path_checks); |
929 | ||
62ea874a MB |
930 | switch (widget->id) { |
931 | case snd_soc_dapm_supply: | |
932 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 933 | case snd_soc_dapm_clock_supply: |
57295073 | 934 | case snd_soc_dapm_kcontrol: |
246d0a17 | 935 | return 0; |
62ea874a MB |
936 | default: |
937 | break; | |
938 | } | |
246d0a17 | 939 | |
2b97eabc | 940 | /* active stream ? */ |
010ff262 MB |
941 | switch (widget->id) { |
942 | case snd_soc_dapm_dac: | |
943 | case snd_soc_dapm_aif_in: | |
4616274d | 944 | case snd_soc_dapm_dai_in: |
024dc078 MB |
945 | if (widget->active) { |
946 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
947 | return widget->inputs; | |
948 | } | |
010ff262 MB |
949 | default: |
950 | break; | |
951 | } | |
2b97eabc RP |
952 | |
953 | if (widget->connected) { | |
954 | /* connected pin ? */ | |
024dc078 MB |
955 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
956 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
957 | return widget->inputs; | |
958 | } | |
2b97eabc RP |
959 | |
960 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
961 | if (widget->id == snd_soc_dapm_vmid) { |
962 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
963 | return widget->inputs; | |
964 | } | |
2b97eabc RP |
965 | |
966 | /* connected jack ? */ | |
eaeae5d9 | 967 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
968 | (widget->id == snd_soc_dapm_line && |
969 | !list_empty(&widget->sinks))) { | |
970 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
971 | return widget->inputs; | |
972 | } | |
973 | ||
1ab97c8c MB |
974 | /* signal generator */ |
975 | if (widget->id == snd_soc_dapm_siggen) { | |
976 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
977 | return widget->inputs; | |
978 | } | |
2b97eabc RP |
979 | } |
980 | ||
981 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
982 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
983 | ||
bf3a9e13 MB |
984 | if (path->weak) |
985 | continue; | |
986 | ||
8af294b4 MB |
987 | if (path->walking) |
988 | return 1; | |
989 | ||
2b97eabc RP |
990 | if (path->walked) |
991 | continue; | |
992 | ||
ec2e3031 LG |
993 | trace_snd_soc_dapm_input_path(widget, path); |
994 | ||
2b97eabc RP |
995 | if (path->source && path->connect) { |
996 | path->walked = 1; | |
8af294b4 | 997 | path->walking = 1; |
ec2e3031 LG |
998 | |
999 | /* do we need to add this widget to the list ? */ | |
1000 | if (list) { | |
1001 | int err; | |
90c6ce0d | 1002 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1003 | if (err < 0) { |
30a6a1a4 LG |
1004 | dev_err(widget->dapm->dev, |
1005 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1006 | widget->name); |
8af294b4 | 1007 | path->walking = 0; |
ec2e3031 LG |
1008 | return con; |
1009 | } | |
1010 | } | |
1011 | ||
1012 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1013 | |
1014 | path->walking = 0; | |
2b97eabc RP |
1015 | } |
1016 | } | |
1017 | ||
024dc078 MB |
1018 | widget->inputs = con; |
1019 | ||
2b97eabc RP |
1020 | return con; |
1021 | } | |
1022 | ||
ec2e3031 LG |
1023 | /** |
1024 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1025 | * @dai: the soc DAI. | |
1026 | * @stream: stream direction. | |
1027 | * @list: list of active widgets for this stream. | |
1028 | * | |
1029 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1030 | * the initial stream specified by name. This takes into account | |
1031 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1032 | * | |
1033 | * Returns the number of valid paths or negative error. | |
1034 | */ | |
1035 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1036 | struct snd_soc_dapm_widget_list **list) | |
1037 | { | |
1038 | struct snd_soc_card *card = dai->card; | |
1039 | int paths; | |
1040 | ||
1041 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1042 | dapm_reset(card); | |
1043 | ||
1059ecfa | 1044 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1045 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1046 | dapm_clear_walk_output(&card->dapm, |
1047 | &dai->playback_widget->sinks); | |
1048 | } else { | |
d298caae | 1049 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1050 | dapm_clear_walk_input(&card->dapm, |
1051 | &dai->capture_widget->sources); | |
1052 | } | |
ec2e3031 LG |
1053 | |
1054 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1055 | mutex_unlock(&card->dapm_mutex); |
1056 | ||
1057 | return paths; | |
1058 | } | |
1059 | ||
62ea874a MB |
1060 | /* |
1061 | * Handler for regulator supply widget. | |
1062 | */ | |
1063 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1064 | struct snd_kcontrol *kcontrol, int event) | |
1065 | { | |
c05b84d1 MB |
1066 | int ret; |
1067 | ||
eb270e98 MB |
1068 | soc_dapm_async_complete(w->dapm); |
1069 | ||
c05b84d1 | 1070 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1071 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1072 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1073 | if (ret != 0) |
1074 | dev_warn(w->dapm->dev, | |
30686c35 | 1075 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1076 | w->name, ret); |
1077 | } | |
1078 | ||
a3cc056b | 1079 | return regulator_enable(w->regulator); |
c05b84d1 | 1080 | } else { |
de9ba98b | 1081 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1082 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1083 | if (ret != 0) |
1084 | dev_warn(w->dapm->dev, | |
30686c35 | 1085 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1086 | w->name, ret); |
1087 | } | |
1088 | ||
a3cc056b | 1089 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1090 | } |
62ea874a MB |
1091 | } |
1092 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1093 | ||
d7e7eb91 OL |
1094 | /* |
1095 | * Handler for clock supply widget. | |
1096 | */ | |
1097 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1098 | struct snd_kcontrol *kcontrol, int event) | |
1099 | { | |
1100 | if (!w->clk) | |
1101 | return -EIO; | |
1102 | ||
eb270e98 MB |
1103 | soc_dapm_async_complete(w->dapm); |
1104 | ||
ec02995a | 1105 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1106 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1107 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1108 | } else { |
37c1b927 | 1109 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1110 | return 0; |
1111 | } | |
ec02995a | 1112 | #endif |
98b3cf12 | 1113 | return 0; |
d7e7eb91 OL |
1114 | } |
1115 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1116 | ||
d805002b MB |
1117 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1118 | { | |
9b8a83b2 MB |
1119 | if (w->power_checked) |
1120 | return w->new_power; | |
1121 | ||
d805002b | 1122 | if (w->force) |
9b8a83b2 | 1123 | w->new_power = 1; |
d805002b | 1124 | else |
9b8a83b2 MB |
1125 | w->new_power = w->power_check(w); |
1126 | ||
1127 | w->power_checked = true; | |
1128 | ||
1129 | return w->new_power; | |
d805002b MB |
1130 | } |
1131 | ||
cd0f2d47 MB |
1132 | /* Generic check to see if a widget should be powered. |
1133 | */ | |
1134 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1135 | { | |
1136 | int in, out; | |
1137 | ||
de02d078 MB |
1138 | DAPM_UPDATE_STAT(w, power_checks); |
1139 | ||
ec2e3031 | 1140 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1141 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1142 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1143 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1144 | return out != 0 && in != 0; |
1145 | } | |
1146 | ||
6ea31b9f MB |
1147 | /* Check to see if an ADC has power */ |
1148 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1149 | { | |
1150 | int in; | |
1151 | ||
de02d078 MB |
1152 | DAPM_UPDATE_STAT(w, power_checks); |
1153 | ||
6ea31b9f | 1154 | if (w->active) { |
ec2e3031 | 1155 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1156 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1157 | return in != 0; |
1158 | } else { | |
1159 | return dapm_generic_check_power(w); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | /* Check to see if a DAC has power */ | |
1164 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1165 | { | |
1166 | int out; | |
1167 | ||
de02d078 MB |
1168 | DAPM_UPDATE_STAT(w, power_checks); |
1169 | ||
6ea31b9f | 1170 | if (w->active) { |
ec2e3031 | 1171 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1172 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1173 | return out != 0; |
1174 | } else { | |
1175 | return dapm_generic_check_power(w); | |
1176 | } | |
1177 | } | |
1178 | ||
246d0a17 MB |
1179 | /* Check to see if a power supply is needed */ |
1180 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1181 | { | |
1182 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1183 | |
de02d078 MB |
1184 | DAPM_UPDATE_STAT(w, power_checks); |
1185 | ||
246d0a17 MB |
1186 | /* Check if one of our outputs is connected */ |
1187 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1188 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1189 | ||
bf3a9e13 MB |
1190 | if (path->weak) |
1191 | continue; | |
1192 | ||
215edda3 MB |
1193 | if (path->connected && |
1194 | !path->connected(path->source, path->sink)) | |
1195 | continue; | |
1196 | ||
3017358a MB |
1197 | if (!path->sink) |
1198 | continue; | |
1199 | ||
f68d7e16 MB |
1200 | if (dapm_widget_power_check(path->sink)) |
1201 | return 1; | |
246d0a17 MB |
1202 | } |
1203 | ||
f68d7e16 | 1204 | return 0; |
246d0a17 MB |
1205 | } |
1206 | ||
35c64bca MB |
1207 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1208 | { | |
1209 | return 1; | |
1210 | } | |
1211 | ||
38357ab2 MB |
1212 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1213 | struct snd_soc_dapm_widget *b, | |
828a842f | 1214 | bool power_up) |
42aa3418 | 1215 | { |
828a842f MB |
1216 | int *sort; |
1217 | ||
1218 | if (power_up) | |
1219 | sort = dapm_up_seq; | |
1220 | else | |
1221 | sort = dapm_down_seq; | |
1222 | ||
38357ab2 MB |
1223 | if (sort[a->id] != sort[b->id]) |
1224 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1225 | if (a->subseq != b->subseq) { |
1226 | if (power_up) | |
1227 | return a->subseq - b->subseq; | |
1228 | else | |
1229 | return b->subseq - a->subseq; | |
1230 | } | |
b22ead2a MB |
1231 | if (a->reg != b->reg) |
1232 | return a->reg - b->reg; | |
84dab567 MB |
1233 | if (a->dapm != b->dapm) |
1234 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1235 | |
38357ab2 MB |
1236 | return 0; |
1237 | } | |
42aa3418 | 1238 | |
38357ab2 MB |
1239 | /* Insert a widget in order into a DAPM power sequence. */ |
1240 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1241 | struct list_head *list, | |
828a842f | 1242 | bool power_up) |
38357ab2 MB |
1243 | { |
1244 | struct snd_soc_dapm_widget *w; | |
1245 | ||
1246 | list_for_each_entry(w, list, power_list) | |
828a842f | 1247 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1248 | list_add_tail(&new_widget->power_list, &w->power_list); |
1249 | return; | |
1250 | } | |
1251 | ||
1252 | list_add_tail(&new_widget->power_list, list); | |
1253 | } | |
1254 | ||
95dd5cd6 | 1255 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1256 | struct snd_soc_dapm_widget *w, int event) |
1257 | { | |
68f89ad8 MB |
1258 | const char *ev_name; |
1259 | int power, ret; | |
1260 | ||
1261 | switch (event) { | |
1262 | case SND_SOC_DAPM_PRE_PMU: | |
1263 | ev_name = "PRE_PMU"; | |
1264 | power = 1; | |
1265 | break; | |
1266 | case SND_SOC_DAPM_POST_PMU: | |
1267 | ev_name = "POST_PMU"; | |
1268 | power = 1; | |
1269 | break; | |
1270 | case SND_SOC_DAPM_PRE_PMD: | |
1271 | ev_name = "PRE_PMD"; | |
1272 | power = 0; | |
1273 | break; | |
1274 | case SND_SOC_DAPM_POST_PMD: | |
1275 | ev_name = "POST_PMD"; | |
1276 | power = 0; | |
1277 | break; | |
80114129 MB |
1278 | case SND_SOC_DAPM_WILL_PMU: |
1279 | ev_name = "WILL_PMU"; | |
1280 | power = 1; | |
1281 | break; | |
1282 | case SND_SOC_DAPM_WILL_PMD: | |
1283 | ev_name = "WILL_PMD"; | |
1284 | power = 0; | |
1285 | break; | |
68f89ad8 | 1286 | default: |
a6ed0608 | 1287 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1288 | return; |
1289 | } | |
1290 | ||
39eb5fd1 | 1291 | if (w->new_power != power) |
68f89ad8 MB |
1292 | return; |
1293 | ||
1294 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1295 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1296 | w->name, ev_name); |
eb270e98 | 1297 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1298 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1299 | ret = w->event(w, NULL, event); |
84e90930 | 1300 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1301 | if (ret < 0) |
95dd5cd6 | 1302 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1303 | ev_name, w->name, ret); |
1304 | } | |
1305 | } | |
1306 | ||
b22ead2a | 1307 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1308 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1309 | struct list_head *pending) |
163cac06 | 1310 | { |
68f89ad8 | 1311 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1312 | int reg; |
b22ead2a MB |
1313 | unsigned int value = 0; |
1314 | unsigned int mask = 0; | |
b22ead2a MB |
1315 | |
1316 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1317 | power_list)->reg; | |
1318 | ||
1319 | list_for_each_entry(w, pending, power_list) { | |
bf4edea8 | 1320 | WARN_ON(reg != w->reg); |
39eb5fd1 | 1321 | w->power = w->new_power; |
b22ead2a | 1322 | |
de9ba98b LPC |
1323 | mask |= w->mask << w->shift; |
1324 | if (w->power) | |
1325 | value |= w->on_val << w->shift; | |
b22ead2a | 1326 | else |
de9ba98b | 1327 | value |= w->off_val << w->shift; |
b22ead2a | 1328 | |
95dd5cd6 | 1329 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1330 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1331 | w->name, reg, value, mask); | |
81628103 | 1332 | |
68f89ad8 | 1333 | /* Check for events */ |
95dd5cd6 LPC |
1334 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1335 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1336 | } |
1337 | ||
1338 | if (reg >= 0) { | |
29376bc7 MB |
1339 | /* Any widget will do, they should all be updating the |
1340 | * same register. | |
1341 | */ | |
1342 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1343 | power_list); | |
1344 | ||
95dd5cd6 | 1345 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1346 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1347 | value, mask, reg, card->pop_time); |
1348 | pop_wait(card->pop_time); | |
23d5442b | 1349 | soc_widget_update_bits(w, reg, mask, value); |
b22ead2a MB |
1350 | } |
1351 | ||
81628103 | 1352 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1353 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1354 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1355 | } |
b22ead2a | 1356 | } |
42aa3418 | 1357 | |
b22ead2a MB |
1358 | /* Apply a DAPM power sequence. |
1359 | * | |
1360 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1361 | * order to minimise the number of writes to the device required | |
1362 | * multiple widgets will be updated in a single write where possible. | |
1363 | * Currently anything that requires more than a single write is not | |
1364 | * handled. | |
1365 | */ | |
95dd5cd6 LPC |
1366 | static void dapm_seq_run(struct snd_soc_card *card, |
1367 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1368 | { |
1369 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1370 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1371 | LIST_HEAD(pending); |
1372 | int cur_sort = -1; | |
20e4859d | 1373 | int cur_subseq = -1; |
b22ead2a | 1374 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1375 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1376 | int ret, i; |
828a842f MB |
1377 | int *sort; |
1378 | ||
1379 | if (power_up) | |
1380 | sort = dapm_up_seq; | |
1381 | else | |
1382 | sort = dapm_down_seq; | |
163cac06 | 1383 | |
b22ead2a MB |
1384 | list_for_each_entry_safe(w, n, list, power_list) { |
1385 | ret = 0; | |
1386 | ||
1387 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1388 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1389 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1390 | if (!list_empty(&pending)) |
95dd5cd6 | 1391 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1392 | |
474b62d6 MB |
1393 | if (cur_dapm && cur_dapm->seq_notifier) { |
1394 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1395 | if (sort[i] == cur_sort) | |
1396 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1397 | i, |
1398 | cur_subseq); | |
474b62d6 MB |
1399 | } |
1400 | ||
eb270e98 MB |
1401 | if (cur_dapm && w->dapm != cur_dapm) |
1402 | soc_dapm_async_complete(cur_dapm); | |
1403 | ||
b22ead2a MB |
1404 | INIT_LIST_HEAD(&pending); |
1405 | cur_sort = -1; | |
b0b3e6f8 | 1406 | cur_subseq = INT_MIN; |
b22ead2a | 1407 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1408 | cur_dapm = NULL; |
b22ead2a MB |
1409 | } |
1410 | ||
163cac06 MB |
1411 | switch (w->id) { |
1412 | case snd_soc_dapm_pre: | |
1413 | if (!w->event) | |
b22ead2a MB |
1414 | list_for_each_entry_safe_continue(w, n, list, |
1415 | power_list); | |
163cac06 | 1416 | |
b22ead2a | 1417 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1418 | ret = w->event(w, |
1419 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1420 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1421 | ret = w->event(w, |
1422 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1423 | break; |
1424 | ||
1425 | case snd_soc_dapm_post: | |
1426 | if (!w->event) | |
b22ead2a MB |
1427 | list_for_each_entry_safe_continue(w, n, list, |
1428 | power_list); | |
163cac06 | 1429 | |
b22ead2a | 1430 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1431 | ret = w->event(w, |
1432 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1433 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1434 | ret = w->event(w, |
1435 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1436 | break; |
1437 | ||
b22ead2a | 1438 | default: |
81628103 MB |
1439 | /* Queue it up for application */ |
1440 | cur_sort = sort[w->id]; | |
20e4859d | 1441 | cur_subseq = w->subseq; |
81628103 | 1442 | cur_reg = w->reg; |
7be31be8 | 1443 | cur_dapm = w->dapm; |
81628103 MB |
1444 | list_move(&w->power_list, &pending); |
1445 | break; | |
163cac06 | 1446 | } |
b22ead2a MB |
1447 | |
1448 | if (ret < 0) | |
f7d41ae8 | 1449 | dev_err(w->dapm->dev, |
30a6a1a4 | 1450 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1451 | } |
b22ead2a MB |
1452 | |
1453 | if (!list_empty(&pending)) | |
95dd5cd6 | 1454 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1455 | |
1456 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1457 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1458 | if (sort[i] == cur_sort) | |
1459 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1460 | i, cur_subseq); |
474b62d6 | 1461 | } |
eb270e98 MB |
1462 | |
1463 | list_for_each_entry(d, &card->dapm_list, list) { | |
1464 | soc_dapm_async_complete(d); | |
1465 | } | |
42aa3418 MB |
1466 | } |
1467 | ||
95dd5cd6 | 1468 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1469 | { |
95dd5cd6 | 1470 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1471 | struct snd_soc_dapm_widget_list *wlist; |
1472 | struct snd_soc_dapm_widget *w = NULL; | |
1473 | unsigned int wi; | |
97404f2e MB |
1474 | int ret; |
1475 | ||
57295073 | 1476 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1477 | return; |
1478 | ||
e84357f7 | 1479 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1480 | |
ce6cfaf1 LPC |
1481 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1482 | w = wlist->widgets[wi]; | |
1483 | ||
1484 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1485 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1486 | if (ret != 0) | |
95dd5cd6 | 1487 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1488 | w->name, ret); |
1489 | } | |
97404f2e MB |
1490 | } |
1491 | ||
ce6cfaf1 LPC |
1492 | if (!w) |
1493 | return; | |
1494 | ||
23d5442b | 1495 | ret = soc_widget_update_bits(w, update->reg, update->mask, update->val); |
97404f2e | 1496 | if (ret < 0) |
95dd5cd6 | 1497 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1498 | w->name, ret); |
97404f2e | 1499 | |
ce6cfaf1 LPC |
1500 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1501 | w = wlist->widgets[wi]; | |
1502 | ||
1503 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1504 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1505 | if (ret != 0) | |
95dd5cd6 | 1506 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1507 | w->name, ret); |
1508 | } | |
97404f2e MB |
1509 | } |
1510 | } | |
1511 | ||
9d0624a7 MB |
1512 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1513 | * they're changing state. | |
1514 | */ | |
1515 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1516 | { | |
1517 | struct snd_soc_dapm_context *d = data; | |
1518 | int ret; | |
1519 | ||
56fba41f MB |
1520 | /* If we're off and we're not supposed to be go into STANDBY */ |
1521 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1522 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1523 | if (d->dev) |
1524 | pm_runtime_get_sync(d->dev); | |
1525 | ||
9d0624a7 MB |
1526 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1527 | if (ret != 0) | |
1528 | dev_err(d->dev, | |
30a6a1a4 | 1529 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1530 | } |
1531 | ||
ce85a4d7 LPC |
1532 | /* Prepare for a transition to ON or away from ON */ |
1533 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1534 | d->bias_level != SND_SOC_BIAS_ON) || | |
1535 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1536 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1537 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1538 | if (ret != 0) | |
1539 | dev_err(d->dev, | |
30a6a1a4 | 1540 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1541 | } |
1542 | } | |
1543 | ||
1544 | /* Async callback run prior to DAPM sequences - brings to their final | |
1545 | * state. | |
1546 | */ | |
1547 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1548 | { | |
1549 | struct snd_soc_dapm_context *d = data; | |
1550 | int ret; | |
1551 | ||
1552 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1553 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1554 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1555 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1556 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1557 | if (ret != 0) | |
30a6a1a4 | 1558 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1559 | ret); |
1560 | } | |
97404f2e | 1561 | |
9d0624a7 | 1562 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1563 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1564 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1565 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1566 | if (ret != 0) | |
30a6a1a4 LG |
1567 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1568 | ret); | |
f1aac484 MB |
1569 | |
1570 | if (d->dev) | |
fb644e9c | 1571 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1572 | } |
1573 | ||
1574 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1575 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1576 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1577 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1578 | if (ret != 0) | |
30a6a1a4 | 1579 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1580 | ret); |
1581 | } | |
1582 | } | |
97404f2e | 1583 | |
fe4fda5d MB |
1584 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1585 | bool power, bool connect) | |
1586 | { | |
1587 | /* If a connection is being made or broken then that update | |
1588 | * will have marked the peer dirty, otherwise the widgets are | |
1589 | * not connected and this update has no impact. */ | |
1590 | if (!connect) | |
1591 | return; | |
1592 | ||
1593 | /* If the peer is already in the state we're moving to then we | |
1594 | * won't have an impact on it. */ | |
1595 | if (power != peer->power) | |
75c1f891 | 1596 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1597 | } |
1598 | ||
05623c43 MB |
1599 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1600 | struct list_head *up_list, | |
1601 | struct list_head *down_list) | |
1602 | { | |
db432b41 MB |
1603 | struct snd_soc_dapm_path *path; |
1604 | ||
05623c43 MB |
1605 | if (w->power == power) |
1606 | return; | |
1607 | ||
1608 | trace_snd_soc_dapm_widget_power(w, power); | |
1609 | ||
db432b41 | 1610 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1611 | * also. |
db432b41 MB |
1612 | */ |
1613 | list_for_each_entry(path, &w->sources, list_sink) { | |
1614 | if (path->source) { | |
fe4fda5d MB |
1615 | dapm_widget_set_peer_power(path->source, power, |
1616 | path->connect); | |
db432b41 MB |
1617 | } |
1618 | } | |
f3bf3e45 MB |
1619 | switch (w->id) { |
1620 | case snd_soc_dapm_supply: | |
62ea874a | 1621 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1622 | case snd_soc_dapm_clock_supply: |
57295073 | 1623 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1624 | /* Supplies can't affect their outputs, only their inputs */ |
1625 | break; | |
1626 | default: | |
1627 | list_for_each_entry(path, &w->sinks, list_source) { | |
1628 | if (path->sink) { | |
1629 | dapm_widget_set_peer_power(path->sink, power, | |
1630 | path->connect); | |
1631 | } | |
db432b41 | 1632 | } |
f3bf3e45 | 1633 | break; |
db432b41 MB |
1634 | } |
1635 | ||
05623c43 MB |
1636 | if (power) |
1637 | dapm_seq_insert(w, up_list, true); | |
1638 | else | |
1639 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1640 | } |
1641 | ||
7c81beb0 MB |
1642 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1643 | struct list_head *up_list, | |
1644 | struct list_head *down_list) | |
1645 | { | |
7c81beb0 MB |
1646 | int power; |
1647 | ||
1648 | switch (w->id) { | |
1649 | case snd_soc_dapm_pre: | |
1650 | dapm_seq_insert(w, down_list, false); | |
1651 | break; | |
1652 | case snd_soc_dapm_post: | |
1653 | dapm_seq_insert(w, up_list, true); | |
1654 | break; | |
1655 | ||
1656 | default: | |
d805002b | 1657 | power = dapm_widget_power_check(w); |
7c81beb0 | 1658 | |
05623c43 | 1659 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1660 | break; |
1661 | } | |
1662 | } | |
1663 | ||
2b97eabc RP |
1664 | /* |
1665 | * Scan each dapm widget for complete audio path. | |
1666 | * A complete path is a route that has valid endpoints i.e.:- | |
1667 | * | |
1668 | * o DAC to output pin. | |
1669 | * o Input Pin to ADC. | |
1670 | * o Input pin to Output pin (bypass, sidetone) | |
1671 | * o DAC to ADC (loopback). | |
1672 | */ | |
95dd5cd6 | 1673 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1674 | { |
1675 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1676 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1677 | LIST_HEAD(up_list); |
1678 | LIST_HEAD(down_list); | |
2955b47d | 1679 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1680 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1681 | |
f9fa2b18 MB |
1682 | lockdep_assert_held(&card->dapm_mutex); |
1683 | ||
84e90930 MB |
1684 | trace_snd_soc_dapm_start(card); |
1685 | ||
56fba41f | 1686 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1687 | if (d->idle_bias_off) |
1688 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1689 | else | |
1690 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1691 | } |
7be31be8 | 1692 | |
6c120e19 | 1693 | dapm_reset(card); |
9b8a83b2 | 1694 | |
6d3ddc81 | 1695 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1696 | * lists indicating if they should be powered up or down. We |
1697 | * only check widgets that have been flagged as dirty but note | |
1698 | * that new widgets may be added to the dirty list while we | |
1699 | * iterate. | |
6d3ddc81 | 1700 | */ |
db432b41 | 1701 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1702 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1703 | } |
1704 | ||
f9de6d74 | 1705 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1706 | switch (w->id) { |
1707 | case snd_soc_dapm_pre: | |
1708 | case snd_soc_dapm_post: | |
1709 | /* These widgets always need to be powered */ | |
1710 | break; | |
1711 | default: | |
1712 | list_del_init(&w->dirty); | |
1713 | break; | |
1714 | } | |
db432b41 | 1715 | |
39eb5fd1 | 1716 | if (w->new_power) { |
f9de6d74 MB |
1717 | d = w->dapm; |
1718 | ||
1719 | /* Supplies and micbiases only bring the | |
1720 | * context up to STANDBY as unless something | |
1721 | * else is active and passing audio they | |
afe62367 MB |
1722 | * generally don't require full power. Signal |
1723 | * generators are virtual pins and have no | |
1724 | * power impact themselves. | |
f9de6d74 MB |
1725 | */ |
1726 | switch (w->id) { | |
afe62367 | 1727 | case snd_soc_dapm_siggen: |
da83fea6 | 1728 | case snd_soc_dapm_vmid: |
afe62367 | 1729 | break; |
f9de6d74 | 1730 | case snd_soc_dapm_supply: |
62ea874a | 1731 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1732 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1733 | case snd_soc_dapm_micbias: |
1734 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1735 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1736 | break; | |
1737 | default: | |
1738 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1739 | break; | |
1740 | } | |
1741 | } | |
1742 | ||
1743 | } | |
1744 | ||
85a843c5 MB |
1745 | /* Force all contexts in the card to the same bias state if |
1746 | * they're not ground referenced. | |
1747 | */ | |
56fba41f | 1748 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1749 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1750 | if (d->target_bias_level > bias) |
1751 | bias = d->target_bias_level; | |
52ba67bf | 1752 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1753 | if (!d->idle_bias_off) |
1754 | d->target_bias_level = bias; | |
52ba67bf | 1755 | |
de02d078 | 1756 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1757 | |
17282ba4 XX |
1758 | /* Run card bias changes at first */ |
1759 | dapm_pre_sequence_async(&card->dapm, 0); | |
1760 | /* Run other bias changes in parallel */ | |
1761 | list_for_each_entry(d, &card->dapm_list, list) { | |
1762 | if (d != &card->dapm) | |
1763 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1764 | &async_domain); | |
1765 | } | |
9d0624a7 | 1766 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1767 | |
cf1f7c6e | 1768 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1769 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1770 | } |
1771 | ||
cf1f7c6e | 1772 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1773 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1774 | } |
1775 | ||
6d3ddc81 | 1776 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1777 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1778 | |
95dd5cd6 | 1779 | dapm_widget_update(card); |
97404f2e | 1780 | |
6d3ddc81 | 1781 | /* Now power up. */ |
95dd5cd6 | 1782 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1783 | |
9d0624a7 | 1784 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1785 | list_for_each_entry(d, &card->dapm_list, list) { |
1786 | if (d != &card->dapm) | |
1787 | async_schedule_domain(dapm_post_sequence_async, d, | |
1788 | &async_domain); | |
1789 | } | |
9d0624a7 | 1790 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1791 | /* Run card bias changes at last */ |
1792 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1793 | |
8078d87f LG |
1794 | /* do we need to notify any clients that DAPM event is complete */ |
1795 | list_for_each_entry(d, &card->dapm_list, list) { | |
1796 | if (d->stream_event) | |
1797 | d->stream_event(d, event); | |
1798 | } | |
1799 | ||
95dd5cd6 | 1800 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1801 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1802 | pop_wait(card->pop_time); |
cb507e7e | 1803 | |
84e90930 MB |
1804 | trace_snd_soc_dapm_done(card); |
1805 | ||
42aa3418 | 1806 | return 0; |
2b97eabc RP |
1807 | } |
1808 | ||
79fb9387 | 1809 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1810 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1811 | char __user *user_buf, | |
1812 | size_t count, loff_t *ppos) | |
1813 | { | |
1814 | struct snd_soc_dapm_widget *w = file->private_data; | |
1815 | char *buf; | |
1816 | int in, out; | |
1817 | ssize_t ret; | |
1818 | struct snd_soc_dapm_path *p = NULL; | |
1819 | ||
1820 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1821 | if (!buf) | |
1822 | return -ENOMEM; | |
1823 | ||
ec2e3031 | 1824 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1825 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1826 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1827 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1828 | |
f13ebada MB |
1829 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1830 | w->name, w->power ? "On" : "Off", | |
1831 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1832 | |
d033c36a MB |
1833 | if (w->reg >= 0) |
1834 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1835 | " - R%d(0x%x) mask 0x%x", |
1836 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1837 | |
1838 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1839 | ||
3eef08ba MB |
1840 | if (w->sname) |
1841 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1842 | w->sname, | |
1843 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1844 | |
1845 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1846 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1847 | continue; |
1848 | ||
79fb9387 MB |
1849 | if (p->connect) |
1850 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1851 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1852 | p->name ? p->name : "static", |
1853 | p->source->name); | |
1854 | } | |
1855 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1856 | if (p->connected && !p->connected(w, p->sink)) |
1857 | continue; | |
1858 | ||
79fb9387 MB |
1859 | if (p->connect) |
1860 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1861 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1862 | p->name ? p->name : "static", |
1863 | p->sink->name); | |
1864 | } | |
1865 | ||
1866 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1867 | ||
1868 | kfree(buf); | |
1869 | return ret; | |
1870 | } | |
1871 | ||
1872 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1873 | .open = simple_open, |
79fb9387 | 1874 | .read = dapm_widget_power_read_file, |
6038f373 | 1875 | .llseek = default_llseek, |
79fb9387 MB |
1876 | }; |
1877 | ||
ef49e4fa MB |
1878 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1879 | size_t count, loff_t *ppos) | |
1880 | { | |
1881 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1882 | char *level; | |
1883 | ||
1884 | switch (dapm->bias_level) { | |
1885 | case SND_SOC_BIAS_ON: | |
1886 | level = "On\n"; | |
1887 | break; | |
1888 | case SND_SOC_BIAS_PREPARE: | |
1889 | level = "Prepare\n"; | |
1890 | break; | |
1891 | case SND_SOC_BIAS_STANDBY: | |
1892 | level = "Standby\n"; | |
1893 | break; | |
1894 | case SND_SOC_BIAS_OFF: | |
1895 | level = "Off\n"; | |
1896 | break; | |
1897 | default: | |
a6ed0608 | 1898 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1899 | level = "Unknown\n"; |
1900 | break; | |
1901 | } | |
1902 | ||
1903 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1904 | strlen(level)); | |
1905 | } | |
1906 | ||
1907 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1908 | .open = simple_open, |
ef49e4fa MB |
1909 | .read = dapm_bias_read_file, |
1910 | .llseek = default_llseek, | |
1911 | }; | |
1912 | ||
8eecaf62 LPC |
1913 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1914 | struct dentry *parent) | |
79fb9387 | 1915 | { |
79fb9387 MB |
1916 | struct dentry *d; |
1917 | ||
8eecaf62 LPC |
1918 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1919 | ||
1920 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1921 | dev_warn(dapm->dev, |
30a6a1a4 | 1922 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1923 | return; |
8eecaf62 | 1924 | } |
79fb9387 | 1925 | |
ef49e4fa MB |
1926 | d = debugfs_create_file("bias_level", 0444, |
1927 | dapm->debugfs_dapm, dapm, | |
1928 | &dapm_bias_fops); | |
1929 | if (!d) | |
1930 | dev_warn(dapm->dev, | |
1931 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1932 | } |
ef49e4fa | 1933 | |
d5d1e0be LPC |
1934 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1935 | { | |
1936 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1937 | struct dentry *d; | |
79fb9387 | 1938 | |
d5d1e0be LPC |
1939 | if (!dapm->debugfs_dapm || !w->name) |
1940 | return; | |
1941 | ||
1942 | d = debugfs_create_file(w->name, 0444, | |
1943 | dapm->debugfs_dapm, w, | |
1944 | &dapm_widget_power_fops); | |
1945 | if (!d) | |
1946 | dev_warn(w->dapm->dev, | |
1947 | "ASoC: Failed to create %s debugfs file\n", | |
1948 | w->name); | |
79fb9387 | 1949 | } |
d5d1e0be | 1950 | |
6c45e126 LPC |
1951 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1952 | { | |
1953 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1954 | } | |
1955 | ||
79fb9387 | 1956 | #else |
8eecaf62 LPC |
1957 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1958 | struct dentry *parent) | |
79fb9387 MB |
1959 | { |
1960 | } | |
d5d1e0be LPC |
1961 | |
1962 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1963 | { | |
1964 | } | |
1965 | ||
6c45e126 LPC |
1966 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1967 | { | |
1968 | } | |
1969 | ||
79fb9387 MB |
1970 | #endif |
1971 | ||
2b97eabc | 1972 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 1973 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 1974 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1975 | { |
1976 | struct snd_soc_dapm_path *path; | |
1977 | int found = 0; | |
1978 | ||
f9fa2b18 MB |
1979 | lockdep_assert_held(&card->dapm_mutex); |
1980 | ||
2b97eabc | 1981 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 1982 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 1983 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1984 | continue; |
1985 | ||
1986 | found = 1; | |
1987 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1988 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1989 | path->connect = 1; /* new connection */ |
75c1f891 | 1990 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1991 | } else { |
1992 | if (path->connect) | |
75c1f891 MB |
1993 | dapm_mark_dirty(path->source, |
1994 | "mux disconnection"); | |
2b97eabc | 1995 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1996 | } |
ce6cfaf1 | 1997 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
1998 | } |
1999 | ||
ce6cfaf1 | 2000 | if (found) |
95dd5cd6 | 2001 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2002 | |
618dae11 | 2003 | return found; |
2b97eabc | 2004 | } |
4edbb345 | 2005 | |
ce6cfaf1 | 2006 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2007 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2008 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2009 | { |
ce6cfaf1 | 2010 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2011 | int ret; |
2012 | ||
3cd04343 | 2013 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2014 | card->update = update; |
95dd5cd6 | 2015 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2016 | card->update = NULL; |
4edbb345 | 2017 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2018 | if (ret > 0) |
c3f48ae6 | 2019 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2020 | return ret; |
2021 | } | |
40f02cd9 | 2022 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2023 | |
1b075e3f | 2024 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2025 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2026 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2027 | { |
2028 | struct snd_soc_dapm_path *path; | |
2029 | int found = 0; | |
2030 | ||
f9fa2b18 MB |
2031 | lockdep_assert_held(&card->dapm_mutex); |
2032 | ||
2b97eabc | 2033 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2034 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2035 | found = 1; |
283375ce | 2036 | path->connect = connect; |
75c1f891 | 2037 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2038 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2039 | } |
2040 | ||
ce6cfaf1 | 2041 | if (found) |
95dd5cd6 | 2042 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2043 | |
618dae11 | 2044 | return found; |
2b97eabc | 2045 | } |
4edbb345 | 2046 | |
ce6cfaf1 | 2047 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2048 | struct snd_kcontrol *kcontrol, int connect, |
2049 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2050 | { |
ce6cfaf1 | 2051 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2052 | int ret; |
2053 | ||
3cd04343 | 2054 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2055 | card->update = update; |
95dd5cd6 | 2056 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2057 | card->update = NULL; |
4edbb345 | 2058 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2059 | if (ret > 0) |
c3f48ae6 | 2060 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2061 | return ret; |
2062 | } | |
40f02cd9 | 2063 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2064 | |
2065 | /* show dapm widget status in sys fs */ | |
2066 | static ssize_t dapm_widget_show(struct device *dev, | |
2067 | struct device_attribute *attr, char *buf) | |
2068 | { | |
36ae1a96 | 2069 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2070 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2071 | struct snd_soc_dapm_widget *w; |
2072 | int count = 0; | |
2073 | char *state = "not set"; | |
2074 | ||
97c866de JN |
2075 | list_for_each_entry(w, &codec->card->widgets, list) { |
2076 | if (w->dapm != &codec->dapm) | |
2077 | continue; | |
2b97eabc RP |
2078 | |
2079 | /* only display widgets that burnm power */ | |
2080 | switch (w->id) { | |
2081 | case snd_soc_dapm_hp: | |
2082 | case snd_soc_dapm_mic: | |
2083 | case snd_soc_dapm_spk: | |
2084 | case snd_soc_dapm_line: | |
2085 | case snd_soc_dapm_micbias: | |
2086 | case snd_soc_dapm_dac: | |
2087 | case snd_soc_dapm_adc: | |
2088 | case snd_soc_dapm_pga: | |
d88429a6 | 2089 | case snd_soc_dapm_out_drv: |
2b97eabc | 2090 | case snd_soc_dapm_mixer: |
ca9c1aae | 2091 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2092 | case snd_soc_dapm_supply: |
62ea874a | 2093 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2094 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2095 | if (w->name) |
2096 | count += sprintf(buf + count, "%s: %s\n", | |
2097 | w->name, w->power ? "On":"Off"); | |
2098 | break; | |
2099 | default: | |
2100 | break; | |
2101 | } | |
2102 | } | |
2103 | ||
ce6120cc | 2104 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2105 | case SND_SOC_BIAS_ON: |
2106 | state = "On"; | |
2b97eabc | 2107 | break; |
0be9898a MB |
2108 | case SND_SOC_BIAS_PREPARE: |
2109 | state = "Prepare"; | |
2b97eabc | 2110 | break; |
0be9898a MB |
2111 | case SND_SOC_BIAS_STANDBY: |
2112 | state = "Standby"; | |
2b97eabc | 2113 | break; |
0be9898a MB |
2114 | case SND_SOC_BIAS_OFF: |
2115 | state = "Off"; | |
2b97eabc RP |
2116 | break; |
2117 | } | |
2118 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2119 | ||
2120 | return count; | |
2121 | } | |
2122 | ||
2123 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2124 | ||
2125 | int snd_soc_dapm_sys_add(struct device *dev) | |
2126 | { | |
12ef193d | 2127 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2128 | } |
2129 | ||
2130 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2131 | { | |
aef90843 | 2132 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2133 | } |
2134 | ||
8872293f LPC |
2135 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2136 | { | |
2137 | list_del(&path->list_sink); | |
2138 | list_del(&path->list_source); | |
5106b92f | 2139 | list_del(&path->list_kcontrol); |
8872293f | 2140 | list_del(&path->list); |
8872293f LPC |
2141 | kfree(path); |
2142 | } | |
2143 | ||
2b97eabc | 2144 | /* free all dapm widgets and resources */ |
ce6120cc | 2145 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2146 | { |
2147 | struct snd_soc_dapm_widget *w, *next_w; | |
2148 | struct snd_soc_dapm_path *p, *next_p; | |
2149 | ||
97c866de JN |
2150 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2151 | if (w->dapm != dapm) | |
2152 | continue; | |
2b97eabc | 2153 | list_del(&w->list); |
8ddab3f5 JN |
2154 | /* |
2155 | * remove source and sink paths associated to this widget. | |
2156 | * While removing the path, remove reference to it from both | |
2157 | * source and sink widgets so that path is removed only once. | |
2158 | */ | |
8872293f LPC |
2159 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2160 | dapm_free_path(p); | |
2161 | ||
2162 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2163 | dapm_free_path(p); | |
2164 | ||
fad59888 | 2165 | kfree(w->kcontrols); |
ead9b919 | 2166 | kfree(w->name); |
2b97eabc RP |
2167 | kfree(w); |
2168 | } | |
2b97eabc RP |
2169 | } |
2170 | ||
91a5fca4 LPC |
2171 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2172 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2173 | bool search_other_contexts) | |
a5302181 LG |
2174 | { |
2175 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2176 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2177 | |
97c866de | 2178 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2179 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2180 | if (w->dapm == dapm) |
2181 | return w; | |
2182 | else | |
2183 | fallback = w; | |
a5302181 LG |
2184 | } |
2185 | } | |
2186 | ||
91a5fca4 LPC |
2187 | if (search_other_contexts) |
2188 | return fallback; | |
2189 | ||
2190 | return NULL; | |
2191 | } | |
2192 | ||
2193 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2194 | const char *pin, int status) | |
2195 | { | |
2196 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2197 | ||
f9fa2b18 MB |
2198 | dapm_assert_locked(dapm); |
2199 | ||
91a5fca4 | 2200 | if (!w) { |
30a6a1a4 | 2201 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2202 | return -EINVAL; |
0d86733c MB |
2203 | } |
2204 | ||
1a8b2d9d MB |
2205 | if (w->connected != status) |
2206 | dapm_mark_dirty(w, "pin configuration"); | |
2207 | ||
91a5fca4 LPC |
2208 | w->connected = status; |
2209 | if (status == 0) | |
2210 | w->force = 0; | |
2211 | ||
2212 | return 0; | |
a5302181 LG |
2213 | } |
2214 | ||
2b97eabc | 2215 | /** |
3eb29dfb | 2216 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2217 | * @dapm: DAPM context |
2b97eabc RP |
2218 | * |
2219 | * Walks all dapm audio paths and powers widgets according to their | |
2220 | * stream or path usage. | |
2221 | * | |
3eb29dfb CK |
2222 | * Requires external locking. |
2223 | * | |
2b97eabc RP |
2224 | * Returns 0 for success. |
2225 | */ | |
3eb29dfb | 2226 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2227 | { |
4f4c0072 MB |
2228 | /* |
2229 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2230 | * silly DAPM runs during card startup. | |
2231 | */ | |
2232 | if (!dapm->card || !dapm->card->instantiated) | |
2233 | return 0; | |
2234 | ||
3eb29dfb CK |
2235 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2236 | } | |
2237 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2238 | ||
2239 | /** | |
2240 | * snd_soc_dapm_sync - scan and power dapm paths | |
2241 | * @dapm: DAPM context | |
2242 | * | |
2243 | * Walks all dapm audio paths and powers widgets according to their | |
2244 | * stream or path usage. | |
2245 | * | |
2246 | * Returns 0 for success. | |
2247 | */ | |
2248 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2249 | { | |
2250 | int ret; | |
2251 | ||
3cd04343 | 2252 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2253 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2254 | mutex_unlock(&dapm->card->dapm_mutex); |
2255 | return ret; | |
2b97eabc | 2256 | } |
a5302181 | 2257 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2258 | |
2553628e LPC |
2259 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2260 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2261 | const char *control, | |
2262 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2263 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2264 | { |
2265 | struct snd_soc_dapm_path *path; | |
2553628e | 2266 | int ret; |
2b97eabc RP |
2267 | |
2268 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2269 | if (!path) | |
2270 | return -ENOMEM; | |
2271 | ||
2272 | path->source = wsource; | |
2273 | path->sink = wsink; | |
2553628e | 2274 | path->connected = connected; |
2b97eabc | 2275 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2276 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2277 | INIT_LIST_HEAD(&path->list_source); |
2278 | INIT_LIST_HEAD(&path->list_sink); | |
2279 | ||
2280 | /* check for external widgets */ | |
2281 | if (wsink->id == snd_soc_dapm_input) { | |
2282 | if (wsource->id == snd_soc_dapm_micbias || | |
2283 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2284 | wsource->id == snd_soc_dapm_line || |
2285 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2286 | wsink->ext = 1; |
2287 | } | |
2288 | if (wsource->id == snd_soc_dapm_output) { | |
2289 | if (wsink->id == snd_soc_dapm_spk || | |
2290 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2291 | wsink->id == snd_soc_dapm_line || |
2292 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2293 | wsource->ext = 1; |
2294 | } | |
2295 | ||
34742cb0 LPC |
2296 | dapm_mark_dirty(wsource, "Route added"); |
2297 | dapm_mark_dirty(wsink, "Route added"); | |
2298 | ||
2b97eabc RP |
2299 | /* connect static paths */ |
2300 | if (control == NULL) { | |
8ddab3f5 | 2301 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2302 | list_add(&path->list_sink, &wsink->sources); |
2303 | list_add(&path->list_source, &wsource->sinks); | |
2304 | path->connect = 1; | |
2305 | return 0; | |
2306 | } | |
2307 | ||
2308 | /* connect dynamic paths */ | |
dc2bea61 | 2309 | switch (wsink->id) { |
2b97eabc RP |
2310 | case snd_soc_dapm_adc: |
2311 | case snd_soc_dapm_dac: | |
2312 | case snd_soc_dapm_pga: | |
d88429a6 | 2313 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2314 | case snd_soc_dapm_input: |
2315 | case snd_soc_dapm_output: | |
1ab97c8c | 2316 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2317 | case snd_soc_dapm_micbias: |
2318 | case snd_soc_dapm_vmid: | |
2319 | case snd_soc_dapm_pre: | |
2320 | case snd_soc_dapm_post: | |
246d0a17 | 2321 | case snd_soc_dapm_supply: |
62ea874a | 2322 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2323 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2324 | case snd_soc_dapm_aif_in: |
2325 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2326 | case snd_soc_dapm_dai_in: |
2327 | case snd_soc_dapm_dai_out: | |
c74184ed | 2328 | case snd_soc_dapm_dai_link: |
57295073 | 2329 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2330 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2331 | list_add(&path->list_sink, &wsink->sources); |
2332 | list_add(&path->list_source, &wsource->sinks); | |
2333 | path->connect = 1; | |
2334 | return 0; | |
2335 | case snd_soc_dapm_mux: | |
ce6120cc | 2336 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2337 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2338 | if (ret != 0) |
2339 | goto err; | |
2340 | break; | |
2341 | case snd_soc_dapm_switch: | |
2342 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2343 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2344 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2345 | if (ret != 0) |
2346 | goto err; | |
2347 | break; | |
2348 | case snd_soc_dapm_hp: | |
2349 | case snd_soc_dapm_mic: | |
2350 | case snd_soc_dapm_line: | |
2351 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2352 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2353 | list_add(&path->list_sink, &wsink->sources); |
2354 | list_add(&path->list_source, &wsource->sinks); | |
2355 | path->connect = 0; | |
2356 | return 0; | |
2357 | } | |
fabd0384 | 2358 | |
2b97eabc | 2359 | return 0; |
2553628e LPC |
2360 | err: |
2361 | kfree(path); | |
2362 | return ret; | |
2363 | } | |
2b97eabc | 2364 | |
2553628e | 2365 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2366 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2367 | { |
2368 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2369 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2370 | const char *sink; | |
2371 | const char *source; | |
2372 | char prefixed_sink[80]; | |
2373 | char prefixed_source[80]; | |
2374 | int ret; | |
2375 | ||
a4e9154c | 2376 | if (dapm->codec && dapm->codec->name_prefix) { |
2553628e LPC |
2377 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2378 | dapm->codec->name_prefix, route->sink); | |
2379 | sink = prefixed_sink; | |
2380 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2381 | dapm->codec->name_prefix, route->source); | |
2382 | source = prefixed_source; | |
2383 | } else { | |
2384 | sink = route->sink; | |
2385 | source = route->source; | |
2386 | } | |
2387 | ||
2388 | /* | |
2389 | * find src and dest widgets over all widgets but favor a widget from | |
2390 | * current DAPM context | |
2391 | */ | |
2392 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2393 | if (!wsink && !(strcmp(w->name, sink))) { | |
2394 | wtsink = w; | |
2395 | if (w->dapm == dapm) | |
2396 | wsink = w; | |
2397 | continue; | |
2398 | } | |
2399 | if (!wsource && !(strcmp(w->name, source))) { | |
2400 | wtsource = w; | |
2401 | if (w->dapm == dapm) | |
2402 | wsource = w; | |
2403 | } | |
2404 | } | |
2405 | /* use widget from another DAPM context if not found from this */ | |
2406 | if (!wsink) | |
2407 | wsink = wtsink; | |
2408 | if (!wsource) | |
2409 | wsource = wtsource; | |
2410 | ||
2411 | if (wsource == NULL) { | |
2412 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2413 | route->source); | |
2414 | return -ENODEV; | |
2415 | } | |
2416 | if (wsink == NULL) { | |
2417 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2418 | route->sink); | |
2419 | return -ENODEV; | |
2420 | } | |
2421 | ||
2422 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2423 | route->connected); | |
2424 | if (ret) | |
2425 | goto err; | |
2426 | ||
2427 | return 0; | |
2b97eabc | 2428 | err: |
30a6a1a4 | 2429 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2430 | source, route->control, sink); |
2b97eabc RP |
2431 | return ret; |
2432 | } | |
105f1c28 | 2433 | |
efcc3c61 MB |
2434 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2435 | const struct snd_soc_dapm_route *route) | |
2436 | { | |
2437 | struct snd_soc_dapm_path *path, *p; | |
2438 | const char *sink; | |
2439 | const char *source; | |
2440 | char prefixed_sink[80]; | |
2441 | char prefixed_source[80]; | |
2442 | ||
2443 | if (route->control) { | |
2444 | dev_err(dapm->dev, | |
30a6a1a4 | 2445 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2446 | return -EINVAL; |
2447 | } | |
2448 | ||
2449 | if (dapm->codec && dapm->codec->name_prefix) { | |
2450 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2451 | dapm->codec->name_prefix, route->sink); | |
2452 | sink = prefixed_sink; | |
2453 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2454 | dapm->codec->name_prefix, route->source); | |
2455 | source = prefixed_source; | |
2456 | } else { | |
2457 | sink = route->sink; | |
2458 | source = route->source; | |
2459 | } | |
2460 | ||
2461 | path = NULL; | |
2462 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2463 | if (strcmp(p->source->name, source) != 0) | |
2464 | continue; | |
2465 | if (strcmp(p->sink->name, sink) != 0) | |
2466 | continue; | |
2467 | path = p; | |
2468 | break; | |
2469 | } | |
2470 | ||
2471 | if (path) { | |
2472 | dapm_mark_dirty(path->source, "Route removed"); | |
2473 | dapm_mark_dirty(path->sink, "Route removed"); | |
2474 | ||
8872293f | 2475 | dapm_free_path(path); |
efcc3c61 | 2476 | } else { |
30a6a1a4 | 2477 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2478 | source, sink); |
2479 | } | |
2480 | ||
2481 | return 0; | |
2482 | } | |
2483 | ||
105f1c28 MB |
2484 | /** |
2485 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2486 | * @dapm: DAPM context |
105f1c28 MB |
2487 | * @route: audio routes |
2488 | * @num: number of routes | |
2489 | * | |
2490 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2491 | * the widget receiving the audio signal, whilst the source is the sender | |
2492 | * of the audio signal. | |
2493 | * | |
2494 | * Returns 0 for success else error. On error all resources can be freed | |
2495 | * with a call to snd_soc_card_free(). | |
2496 | */ | |
ce6120cc | 2497 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2498 | const struct snd_soc_dapm_route *route, int num) |
2499 | { | |
62d4a4b9 | 2500 | int i, r, ret = 0; |
105f1c28 | 2501 | |
a73fb2df | 2502 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2503 | for (i = 0; i < num; i++) { |
a4e9154c | 2504 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2505 | if (r < 0) { |
30a6a1a4 LG |
2506 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2507 | route->source, | |
2508 | route->control ? route->control : "direct", | |
2509 | route->sink); | |
62d4a4b9 | 2510 | ret = r; |
105f1c28 MB |
2511 | } |
2512 | route++; | |
2513 | } | |
a73fb2df | 2514 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2515 | |
60884c27 | 2516 | return ret; |
105f1c28 MB |
2517 | } |
2518 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2519 | ||
efcc3c61 MB |
2520 | /** |
2521 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2522 | * @dapm: DAPM context | |
2523 | * @route: audio routes | |
2524 | * @num: number of routes | |
2525 | * | |
2526 | * Removes routes from the DAPM context. | |
2527 | */ | |
2528 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2529 | const struct snd_soc_dapm_route *route, int num) | |
2530 | { | |
2531 | int i, ret = 0; | |
2532 | ||
2533 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2534 | for (i = 0; i < num; i++) { | |
2535 | snd_soc_dapm_del_route(dapm, route); | |
2536 | route++; | |
2537 | } | |
2538 | mutex_unlock(&dapm->card->dapm_mutex); | |
2539 | ||
2540 | return ret; | |
2541 | } | |
2542 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2543 | ||
bf3a9e13 MB |
2544 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2545 | const struct snd_soc_dapm_route *route) | |
2546 | { | |
2547 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2548 | route->source, | |
2549 | true); | |
2550 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2551 | route->sink, | |
2552 | true); | |
2553 | struct snd_soc_dapm_path *path; | |
2554 | int count = 0; | |
2555 | ||
2556 | if (!source) { | |
30a6a1a4 | 2557 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2558 | route->source); |
2559 | return -ENODEV; | |
2560 | } | |
2561 | ||
2562 | if (!sink) { | |
30a6a1a4 | 2563 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2564 | route->sink); |
2565 | return -ENODEV; | |
2566 | } | |
2567 | ||
2568 | if (route->control || route->connected) | |
30a6a1a4 | 2569 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2570 | route->source, route->sink); |
2571 | ||
2572 | list_for_each_entry(path, &source->sinks, list_source) { | |
2573 | if (path->sink == sink) { | |
2574 | path->weak = 1; | |
2575 | count++; | |
2576 | } | |
2577 | } | |
2578 | ||
2579 | if (count == 0) | |
30a6a1a4 | 2580 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2581 | route->source, route->sink); |
2582 | if (count > 1) | |
30a6a1a4 | 2583 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2584 | count, route->source, route->sink); |
2585 | ||
2586 | return 0; | |
2587 | } | |
2588 | ||
2589 | /** | |
2590 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2591 | * @dapm: DAPM context | |
2592 | * @route: audio routes | |
2593 | * @num: number of routes | |
2594 | * | |
2595 | * Mark existing routes matching those specified in the passed array | |
2596 | * as being weak, meaning that they are ignored for the purpose of | |
2597 | * power decisions. The main intended use case is for sidetone paths | |
2598 | * which couple audio between other independent paths if they are both | |
2599 | * active in order to make the combination work better at the user | |
2600 | * level but which aren't intended to be "used". | |
2601 | * | |
2602 | * Note that CODEC drivers should not use this as sidetone type paths | |
2603 | * can frequently also be used as bypass paths. | |
2604 | */ | |
2605 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2606 | const struct snd_soc_dapm_route *route, int num) | |
2607 | { | |
2608 | int i, err; | |
2609 | int ret = 0; | |
2610 | ||
a73fb2df | 2611 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2612 | for (i = 0; i < num; i++) { |
2613 | err = snd_soc_dapm_weak_route(dapm, route); | |
2614 | if (err) | |
2615 | ret = err; | |
2616 | route++; | |
2617 | } | |
a73fb2df | 2618 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2619 | |
2620 | return ret; | |
2621 | } | |
2622 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2623 | ||
2b97eabc RP |
2624 | /** |
2625 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2626 | * @dapm: DAPM context |
2b97eabc RP |
2627 | * |
2628 | * Checks the codec for any new dapm widgets and creates them if found. | |
2629 | * | |
2630 | * Returns 0 for success. | |
2631 | */ | |
824ef826 | 2632 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2633 | { |
2634 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2635 | unsigned int val; |
2b97eabc | 2636 | |
95dd5cd6 | 2637 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2638 | |
95dd5cd6 | 2639 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2640 | { |
2641 | if (w->new) | |
2642 | continue; | |
2643 | ||
fad59888 SW |
2644 | if (w->num_kcontrols) { |
2645 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2646 | sizeof(struct snd_kcontrol *), | |
2647 | GFP_KERNEL); | |
a73fb2df | 2648 | if (!w->kcontrols) { |
95dd5cd6 | 2649 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2650 | return -ENOMEM; |
a73fb2df | 2651 | } |
fad59888 SW |
2652 | } |
2653 | ||
2b97eabc RP |
2654 | switch(w->id) { |
2655 | case snd_soc_dapm_switch: | |
2656 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2657 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2658 | dapm_new_mixer(w); |
2b97eabc RP |
2659 | break; |
2660 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2661 | dapm_new_mux(w); |
2b97eabc | 2662 | break; |
2b97eabc | 2663 | case snd_soc_dapm_pga: |
d88429a6 | 2664 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2665 | dapm_new_pga(w); |
2b97eabc | 2666 | break; |
7ca3a18b | 2667 | default: |
2b97eabc RP |
2668 | break; |
2669 | } | |
b66a70d5 MB |
2670 | |
2671 | /* Read the initial power state from the device */ | |
2672 | if (w->reg >= 0) { | |
f7d3c170 ASL |
2673 | soc_widget_read(w, w->reg, &val); |
2674 | val = val >> w->shift; | |
de9ba98b LPC |
2675 | val &= w->mask; |
2676 | if (val == w->on_val) | |
b66a70d5 MB |
2677 | w->power = 1; |
2678 | } | |
2679 | ||
2b97eabc | 2680 | w->new = 1; |
d5d1e0be | 2681 | |
7508b12a | 2682 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2683 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2684 | } |
2685 | ||
95dd5cd6 LPC |
2686 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2687 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2688 | return 0; |
2689 | } | |
2690 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2691 | ||
2692 | /** | |
2693 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2694 | * @kcontrol: mixer control | |
ac11a2b3 | 2695 | * @ucontrol: control element information |
2b97eabc RP |
2696 | * |
2697 | * Callback to get the value of a dapm mixer control. | |
2698 | * | |
2699 | * Returns 0 for success. | |
2700 | */ | |
2701 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2702 | struct snd_ctl_elem_value *ucontrol) | |
2703 | { | |
eee5d7f9 | 2704 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2705 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2706 | struct soc_mixer_control *mc = |
2707 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2708 | int reg = mc->reg; |
815ecf8d | 2709 | unsigned int shift = mc->shift; |
4eaa9819 | 2710 | int max = mc->max; |
815ecf8d | 2711 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2712 | unsigned int invert = mc->invert; |
57295073 | 2713 | unsigned int val; |
da602ab8 BT |
2714 | |
2715 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2716 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2717 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2718 | kcontrol->id.name); |
2b97eabc | 2719 | |
57295073 | 2720 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
249ce138 | 2721 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) |
57295073 LPC |
2722 | val = (snd_soc_read(codec, reg) >> shift) & mask; |
2723 | else | |
2724 | val = dapm_kcontrol_get_value(kcontrol); | |
2725 | mutex_unlock(&card->dapm_mutex); | |
2726 | ||
da602ab8 | 2727 | if (invert) |
57295073 LPC |
2728 | ucontrol->value.integer.value[0] = max - val; |
2729 | else | |
2730 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2731 | |
2732 | return 0; | |
2733 | } | |
2734 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2735 | ||
2736 | /** | |
2737 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2738 | * @kcontrol: mixer control | |
ac11a2b3 | 2739 | * @ucontrol: control element information |
2b97eabc RP |
2740 | * |
2741 | * Callback to set the value of a dapm mixer control. | |
2742 | * | |
2743 | * Returns 0 for success. | |
2744 | */ | |
2745 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2746 | struct snd_ctl_elem_value *ucontrol) | |
2747 | { | |
eee5d7f9 | 2748 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2749 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2750 | struct soc_mixer_control *mc = |
2751 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2752 | int reg = mc->reg; |
815ecf8d | 2753 | unsigned int shift = mc->shift; |
4eaa9819 | 2754 | int max = mc->max; |
815ecf8d JS |
2755 | unsigned int mask = (1 << fls(max)) - 1; |
2756 | unsigned int invert = mc->invert; | |
e9cf7049 | 2757 | unsigned int val; |
97404f2e MB |
2758 | int connect, change; |
2759 | struct snd_soc_dapm_update update; | |
52765976 | 2760 | int ret = 0; |
2b97eabc | 2761 | |
da602ab8 | 2762 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2763 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2764 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2765 | kcontrol->id.name); |
2766 | ||
2b97eabc | 2767 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2768 | connect = !!val; |
2b97eabc RP |
2769 | |
2770 | if (invert) | |
a7a4ac86 | 2771 | val = max - val; |
2b97eabc | 2772 | |
3cd04343 | 2773 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2774 | |
249ce138 | 2775 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2776 | if (change) { |
249ce138 | 2777 | if (reg != SND_SOC_NOPM) { |
c9e065c2 LPC |
2778 | mask = mask << shift; |
2779 | val = val << shift; | |
2780 | ||
2781 | if (snd_soc_test_bits(codec, reg, mask, val)) { | |
2782 | update.kcontrol = kcontrol; | |
2783 | update.reg = reg; | |
2784 | update.mask = mask; | |
2785 | update.val = val; | |
2786 | card->update = &update; | |
2787 | } | |
97404f2e | 2788 | |
249ce138 | 2789 | } |
97404f2e | 2790 | |
52765976 | 2791 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2792 | |
564c6504 | 2793 | card->update = NULL; |
283375ce MB |
2794 | } |
2795 | ||
a73fb2df | 2796 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2797 | |
2798 | if (ret > 0) | |
2799 | soc_dpcm_runtime_update(card); | |
2800 | ||
56a67834 | 2801 | return change; |
2b97eabc RP |
2802 | } |
2803 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2804 | ||
2805 | /** | |
2806 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2807 | * @kcontrol: mixer control | |
ac11a2b3 | 2808 | * @ucontrol: control element information |
2b97eabc RP |
2809 | * |
2810 | * Callback to get the value of a dapm enumerated double mixer control. | |
2811 | * | |
2812 | * Returns 0 for success. | |
2813 | */ | |
2814 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2815 | struct snd_ctl_elem_value *ucontrol) | |
2816 | { | |
eee5d7f9 | 2817 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2818 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2819 | unsigned int reg_val, val; |
52765976 | 2820 | |
236aaa68 LPC |
2821 | if (e->reg != SND_SOC_NOPM) |
2822 | reg_val = snd_soc_read(codec, e->reg); | |
2823 | else | |
2824 | reg_val = dapm_kcontrol_get_value(kcontrol); | |
2e72f8e3 | 2825 | |
2e72f8e3 | 2826 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2827 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2828 | if (e->shift_l != e->shift_r) { |
2829 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2830 | val = snd_soc_enum_val_to_item(e, val); |
2831 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2832 | } |
2833 | ||
2834 | return 0; | |
2835 | } | |
2b97eabc | 2836 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2837 | |
2838 | /** | |
2b97eabc | 2839 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2840 | * @kcontrol: mixer control |
2841 | * @ucontrol: control element information | |
2842 | * | |
2b97eabc | 2843 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2844 | * |
2845 | * Returns 0 for success. | |
2846 | */ | |
2b97eabc | 2847 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2848 | struct snd_ctl_elem_value *ucontrol) |
2849 | { | |
cf7c1de2 | 2850 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2851 | struct snd_soc_card *card = codec->card; |
74155556 | 2852 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2853 | unsigned int *item = ucontrol->value.enumerated.item; |
2854 | unsigned int val, change; | |
46f5822f | 2855 | unsigned int mask; |
97404f2e | 2856 | struct snd_soc_dapm_update update; |
52765976 | 2857 | int ret = 0; |
2e72f8e3 | 2858 | |
3727b496 | 2859 | if (item[0] >= e->items) |
2e72f8e3 | 2860 | return -EINVAL; |
3727b496 LPC |
2861 | |
2862 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2863 | mask = e->mask << e->shift_l; |
2864 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2865 | if (item[1] > e->items) |
2e72f8e3 | 2866 | return -EINVAL; |
3727b496 | 2867 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2868 | mask |= e->mask << e->shift_r; |
2869 | } | |
2870 | ||
3cd04343 | 2871 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2872 | |
236aaa68 LPC |
2873 | if (e->reg != SND_SOC_NOPM) |
2874 | change = snd_soc_test_bits(codec, e->reg, mask, val); | |
2875 | else | |
2876 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2877 | ||
fafd2176 | 2878 | if (change) { |
236aaa68 LPC |
2879 | if (e->reg != SND_SOC_NOPM) { |
2880 | update.kcontrol = kcontrol; | |
2881 | update.reg = e->reg; | |
2882 | update.mask = mask; | |
2883 | update.val = val; | |
2884 | card->update = &update; | |
2885 | } | |
1642e3d4 | 2886 | |
3727b496 | 2887 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 2888 | |
564c6504 | 2889 | card->update = NULL; |
fafd2176 | 2890 | } |
2e72f8e3 | 2891 | |
a73fb2df | 2892 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2893 | |
2894 | if (ret > 0) | |
2895 | soc_dpcm_runtime_update(card); | |
2896 | ||
97404f2e | 2897 | return change; |
2e72f8e3 | 2898 | } |
2b97eabc | 2899 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 2900 | |
8b37dbd2 MB |
2901 | /** |
2902 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2903 | * | |
2904 | * @kcontrol: mixer control | |
2905 | * @uinfo: control element information | |
2906 | * | |
2907 | * Callback to provide information about a pin switch control. | |
2908 | */ | |
2909 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2910 | struct snd_ctl_elem_info *uinfo) | |
2911 | { | |
2912 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2913 | uinfo->count = 1; | |
2914 | uinfo->value.integer.min = 0; | |
2915 | uinfo->value.integer.max = 1; | |
2916 | ||
2917 | return 0; | |
2918 | } | |
2919 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2920 | ||
2921 | /** | |
2922 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2923 | * | |
2924 | * @kcontrol: mixer control | |
2925 | * @ucontrol: Value | |
2926 | */ | |
2927 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2928 | struct snd_ctl_elem_value *ucontrol) | |
2929 | { | |
48a8c394 | 2930 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2931 | const char *pin = (const char *)kcontrol->private_value; |
2932 | ||
3cd04343 | 2933 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2934 | |
2935 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2936 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2937 | |
a73fb2df | 2938 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2939 | |
2940 | return 0; | |
2941 | } | |
2942 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2943 | ||
2944 | /** | |
2945 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2946 | * | |
2947 | * @kcontrol: mixer control | |
2948 | * @ucontrol: Value | |
2949 | */ | |
2950 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2951 | struct snd_ctl_elem_value *ucontrol) | |
2952 | { | |
48a8c394 | 2953 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2954 | const char *pin = (const char *)kcontrol->private_value; |
2955 | ||
8b37dbd2 | 2956 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 2957 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2958 | else |
48a8c394 | 2959 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 2960 | |
a73fb2df | 2961 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
2962 | return 0; |
2963 | } | |
2964 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2965 | ||
5ba06fc9 MB |
2966 | static struct snd_soc_dapm_widget * |
2967 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
2968 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
2969 | { |
2970 | struct snd_soc_dapm_widget *w; | |
62ea874a | 2971 | int ret; |
2b97eabc RP |
2972 | |
2973 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 2974 | return NULL; |
2b97eabc | 2975 | |
62ea874a MB |
2976 | switch (w->id) { |
2977 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
2978 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
2979 | if (IS_ERR(w->regulator)) { | |
2980 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 2981 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 2982 | w->name, ret); |
5ba06fc9 | 2983 | return NULL; |
62ea874a | 2984 | } |
8784c77a | 2985 | |
de9ba98b | 2986 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
2987 | ret = regulator_allow_bypass(w->regulator, true); |
2988 | if (ret != 0) | |
2989 | dev_warn(w->dapm->dev, | |
30686c35 | 2990 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
2991 | w->name, ret); |
2992 | } | |
62ea874a | 2993 | break; |
d7e7eb91 | 2994 | case snd_soc_dapm_clock_supply: |
165961ef | 2995 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 2996 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
2997 | if (IS_ERR(w->clk)) { |
2998 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 2999 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3000 | w->name, ret); |
3001 | return NULL; | |
3002 | } | |
ec02995a MB |
3003 | #else |
3004 | return NULL; | |
3005 | #endif | |
d7e7eb91 | 3006 | break; |
62ea874a MB |
3007 | default: |
3008 | break; | |
3009 | } | |
2b97eabc | 3010 | |
88e8b9a8 | 3011 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3012 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3013 | dapm->codec->name_prefix, widget->name); | |
3014 | else | |
3015 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3016 | ||
ead9b919 JN |
3017 | if (w->name == NULL) { |
3018 | kfree(w); | |
5ba06fc9 | 3019 | return NULL; |
ead9b919 | 3020 | } |
ead9b919 | 3021 | |
7ca3a18b MB |
3022 | switch (w->id) { |
3023 | case snd_soc_dapm_switch: | |
3024 | case snd_soc_dapm_mixer: | |
3025 | case snd_soc_dapm_mixer_named_ctl: | |
3026 | w->power_check = dapm_generic_check_power; | |
3027 | break; | |
3028 | case snd_soc_dapm_mux: | |
7ca3a18b MB |
3029 | w->power_check = dapm_generic_check_power; |
3030 | break; | |
4616274d | 3031 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3032 | w->power_check = dapm_adc_check_power; |
3033 | break; | |
4616274d | 3034 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3035 | w->power_check = dapm_dac_check_power; |
3036 | break; | |
63c69a6e MB |
3037 | case snd_soc_dapm_adc: |
3038 | case snd_soc_dapm_aif_out: | |
3039 | case snd_soc_dapm_dac: | |
3040 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3041 | case snd_soc_dapm_pga: |
3042 | case snd_soc_dapm_out_drv: | |
3043 | case snd_soc_dapm_input: | |
3044 | case snd_soc_dapm_output: | |
3045 | case snd_soc_dapm_micbias: | |
3046 | case snd_soc_dapm_spk: | |
3047 | case snd_soc_dapm_hp: | |
3048 | case snd_soc_dapm_mic: | |
3049 | case snd_soc_dapm_line: | |
c74184ed | 3050 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3051 | w->power_check = dapm_generic_check_power; |
3052 | break; | |
3053 | case snd_soc_dapm_supply: | |
62ea874a | 3054 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3055 | case snd_soc_dapm_clock_supply: |
57295073 | 3056 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3057 | w->power_check = dapm_supply_check_power; |
3058 | break; | |
3059 | default: | |
3060 | w->power_check = dapm_always_on_check_power; | |
3061 | break; | |
3062 | } | |
3063 | ||
ce6120cc LG |
3064 | w->dapm = dapm; |
3065 | w->codec = dapm->codec; | |
b7950641 | 3066 | w->platform = dapm->platform; |
2b97eabc RP |
3067 | INIT_LIST_HEAD(&w->sources); |
3068 | INIT_LIST_HEAD(&w->sinks); | |
3069 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3070 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3071 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3072 | |
3073 | /* machine layer set ups unconnected pins and insertions */ | |
3074 | w->connected = 1; | |
5ba06fc9 | 3075 | return w; |
2b97eabc | 3076 | } |
2b97eabc | 3077 | |
4ba1327a MB |
3078 | /** |
3079 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3080 | * @dapm: DAPM context |
4ba1327a MB |
3081 | * @widget: widget array |
3082 | * @num: number of widgets | |
3083 | * | |
3084 | * Creates new DAPM controls based upon the templates. | |
3085 | * | |
3086 | * Returns 0 for success else error. | |
3087 | */ | |
ce6120cc | 3088 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3089 | const struct snd_soc_dapm_widget *widget, |
3090 | int num) | |
3091 | { | |
5ba06fc9 MB |
3092 | struct snd_soc_dapm_widget *w; |
3093 | int i; | |
60884c27 | 3094 | int ret = 0; |
4ba1327a | 3095 | |
a73fb2df | 3096 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3097 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3098 | w = snd_soc_dapm_new_control(dapm, widget); |
3099 | if (!w) { | |
f7d41ae8 | 3100 | dev_err(dapm->dev, |
5ba06fc9 MB |
3101 | "ASoC: Failed to create DAPM control %s\n", |
3102 | widget->name); | |
60884c27 DC |
3103 | ret = -ENOMEM; |
3104 | break; | |
b8b33cb5 | 3105 | } |
4ba1327a MB |
3106 | widget++; |
3107 | } | |
a73fb2df | 3108 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3109 | return ret; |
4ba1327a MB |
3110 | } |
3111 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3112 | ||
c74184ed MB |
3113 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3114 | struct snd_kcontrol *kcontrol, int event) | |
3115 | { | |
3116 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3117 | struct snd_soc_dai *source, *sink; | |
3118 | const struct snd_soc_pcm_stream *config = w->params; | |
3119 | struct snd_pcm_substream substream; | |
9747cec2 | 3120 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3121 | u64 fmt; |
3122 | int ret; | |
3123 | ||
bf4edea8 TI |
3124 | if (WARN_ON(!config) || |
3125 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3126 | return -EINVAL; | |
c74184ed MB |
3127 | |
3128 | /* We only support a single source and sink, pick the first */ | |
3129 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3130 | list_sink); | |
3131 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3132 | list_source); | |
3133 | ||
bf4edea8 TI |
3134 | if (WARN_ON(!source_p || !sink_p) || |
3135 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3136 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3137 | return -EINVAL; | |
c74184ed MB |
3138 | |
3139 | source = source_p->source->priv; | |
3140 | sink = sink_p->sink->priv; | |
3141 | ||
3142 | /* Be a little careful as we don't want to overflow the mask array */ | |
3143 | if (config->formats) { | |
3144 | fmt = ffs(config->formats) - 1; | |
3145 | } else { | |
30a6a1a4 | 3146 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3147 | config->formats); |
3148 | fmt = 0; | |
3149 | } | |
3150 | ||
3151 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3152 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3153 | if (!params) { | |
3154 | ret = -ENOMEM; | |
3155 | goto out; | |
3156 | } | |
3157 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3158 | |
9747cec2 | 3159 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3160 | config->rate_min; |
9747cec2 | 3161 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3162 | config->rate_max; |
3163 | ||
9747cec2 | 3164 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3165 | = config->channels_min; |
9747cec2 | 3166 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3167 | = config->channels_max; |
3168 | ||
3169 | memset(&substream, 0, sizeof(substream)); | |
3170 | ||
3171 | switch (event) { | |
3172 | case SND_SOC_DAPM_PRE_PMU: | |
3173 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3174 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3175 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3176 | params, source); |
c74184ed MB |
3177 | if (ret != 0) { |
3178 | dev_err(source->dev, | |
30a6a1a4 | 3179 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3180 | goto out; |
c74184ed MB |
3181 | } |
3182 | } | |
3183 | ||
3184 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3185 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3186 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3187 | sink); |
3188 | if (ret != 0) { | |
3189 | dev_err(sink->dev, | |
30a6a1a4 | 3190 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3191 | goto out; |
c74184ed MB |
3192 | } |
3193 | } | |
3194 | break; | |
3195 | ||
3196 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3197 | ret = snd_soc_dai_digital_mute(sink, 0, |
3198 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3199 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3200 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3201 | ret = 0; |
c74184ed MB |
3202 | break; |
3203 | ||
3204 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3205 | ret = snd_soc_dai_digital_mute(sink, 1, |
3206 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3207 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3208 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3209 | ret = 0; |
c74184ed MB |
3210 | break; |
3211 | ||
3212 | default: | |
a6ed0608 | 3213 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3214 | return -EINVAL; |
3215 | } | |
3216 | ||
9747cec2 MB |
3217 | out: |
3218 | kfree(params); | |
3219 | return ret; | |
c74184ed MB |
3220 | } |
3221 | ||
3222 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3223 | const struct snd_soc_pcm_stream *params, | |
3224 | struct snd_soc_dapm_widget *source, | |
3225 | struct snd_soc_dapm_widget *sink) | |
3226 | { | |
c74184ed MB |
3227 | struct snd_soc_dapm_widget template; |
3228 | struct snd_soc_dapm_widget *w; | |
3229 | size_t len; | |
3230 | char *link_name; | |
fe83897f | 3231 | int ret; |
c74184ed MB |
3232 | |
3233 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3234 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3235 | if (!link_name) | |
3236 | return -ENOMEM; | |
3237 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3238 | ||
3239 | memset(&template, 0, sizeof(template)); | |
3240 | template.reg = SND_SOC_NOPM; | |
3241 | template.id = snd_soc_dapm_dai_link; | |
3242 | template.name = link_name; | |
3243 | template.event = snd_soc_dai_link_event; | |
3244 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3245 | SND_SOC_DAPM_PRE_PMD; | |
3246 | ||
30a6a1a4 | 3247 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3248 | |
3249 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3250 | if (!w) { | |
30a6a1a4 | 3251 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3252 | link_name); |
3253 | return -ENOMEM; | |
3254 | } | |
3255 | ||
3256 | w->params = params; | |
3257 | ||
fe83897f LPC |
3258 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3259 | if (ret) | |
3260 | return ret; | |
3261 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); | |
c74184ed MB |
3262 | } |
3263 | ||
888df395 MB |
3264 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3265 | struct snd_soc_dai *dai) | |
2b97eabc | 3266 | { |
888df395 | 3267 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3268 | struct snd_soc_dapm_widget *w; |
3269 | ||
888df395 MB |
3270 | WARN_ON(dapm->dev != dai->dev); |
3271 | ||
3272 | memset(&template, 0, sizeof(template)); | |
3273 | template.reg = SND_SOC_NOPM; | |
3274 | ||
3275 | if (dai->driver->playback.stream_name) { | |
4616274d | 3276 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3277 | template.name = dai->driver->playback.stream_name; |
3278 | template.sname = dai->driver->playback.stream_name; | |
3279 | ||
30a6a1a4 | 3280 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3281 | template.name); |
3282 | ||
3283 | w = snd_soc_dapm_new_control(dapm, &template); | |
3284 | if (!w) { | |
30a6a1a4 | 3285 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3286 | dai->driver->playback.stream_name); |
298402a3 | 3287 | return -ENOMEM; |
888df395 MB |
3288 | } |
3289 | ||
3290 | w->priv = dai; | |
3291 | dai->playback_widget = w; | |
3292 | } | |
3293 | ||
3294 | if (dai->driver->capture.stream_name) { | |
4616274d | 3295 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3296 | template.name = dai->driver->capture.stream_name; |
3297 | template.sname = dai->driver->capture.stream_name; | |
3298 | ||
30a6a1a4 | 3299 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3300 | template.name); |
3301 | ||
3302 | w = snd_soc_dapm_new_control(dapm, &template); | |
3303 | if (!w) { | |
30a6a1a4 | 3304 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3305 | dai->driver->capture.stream_name); |
298402a3 | 3306 | return -ENOMEM; |
888df395 MB |
3307 | } |
3308 | ||
3309 | w->priv = dai; | |
3310 | dai->capture_widget = w; | |
3311 | } | |
3312 | ||
3313 | return 0; | |
3314 | } | |
3315 | ||
3316 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3317 | { | |
3318 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3319 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3320 | struct snd_soc_dai *dai; |
888df395 MB |
3321 | |
3322 | /* For each DAI widget... */ | |
3323 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3324 | switch (dai_w->id) { |
3325 | case snd_soc_dapm_dai_in: | |
3326 | case snd_soc_dapm_dai_out: | |
3327 | break; | |
3328 | default: | |
2b97eabc | 3329 | continue; |
4616274d | 3330 | } |
888df395 MB |
3331 | |
3332 | dai = dai_w->priv; | |
3333 | ||
3334 | /* ...find all widgets with the same stream and link them */ | |
3335 | list_for_each_entry(w, &card->widgets, list) { | |
3336 | if (w->dapm != dai_w->dapm) | |
3337 | continue; | |
3338 | ||
4616274d MB |
3339 | switch (w->id) { |
3340 | case snd_soc_dapm_dai_in: | |
3341 | case snd_soc_dapm_dai_out: | |
888df395 | 3342 | continue; |
4616274d MB |
3343 | default: |
3344 | break; | |
3345 | } | |
888df395 | 3346 | |
19c2c5f5 | 3347 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3348 | continue; |
3349 | ||
0f9bd7b1 LPC |
3350 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3351 | src = dai_w; | |
3352 | sink = w; | |
3353 | } else { | |
3354 | src = w; | |
3355 | sink = dai_w; | |
2b97eabc | 3356 | } |
0f9bd7b1 LPC |
3357 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3358 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3359 | } |
3360 | } | |
2b97eabc | 3361 | |
888df395 MB |
3362 | return 0; |
3363 | } | |
64a648c2 | 3364 | |
b893ea5f LG |
3365 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3366 | { | |
3367 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
9887c20b | 3368 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f | 3369 | struct snd_soc_dai *cpu_dai, *codec_dai; |
b893ea5f LG |
3370 | int i; |
3371 | ||
b893ea5f LG |
3372 | /* for each BE DAI link... */ |
3373 | for (i = 0; i < card->num_rtd; i++) { | |
3374 | rtd = &card->rtd[i]; | |
3375 | cpu_dai = rtd->cpu_dai; | |
3376 | codec_dai = rtd->codec_dai; | |
3377 | ||
ca5106ae LPC |
3378 | /* |
3379 | * dynamic FE links have no fixed DAI mapping. | |
3380 | * CODEC<->CODEC links have no direct connection. | |
3381 | */ | |
3382 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
b893ea5f LG |
3383 | continue; |
3384 | ||
3385 | /* there is no point in connecting BE DAI links with dummies */ | |
3386 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3387 | snd_soc_dai_is_dummy(cpu_dai)) | |
3388 | continue; | |
3389 | ||
3390 | /* connect BE DAI playback if widgets are valid */ | |
3391 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3392 | source = cpu_dai->playback_widget; |
3393 | sink = codec_dai->playback_widget; | |
b893ea5f | 3394 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
9887c20b LPC |
3395 | cpu_dai->codec->name, source->name, |
3396 | codec_dai->platform->name, sink->name); | |
b893ea5f | 3397 | |
9887c20b LPC |
3398 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3399 | NULL, NULL); | |
b893ea5f LG |
3400 | } |
3401 | ||
3402 | /* connect BE DAI capture if widgets are valid */ | |
3403 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3404 | source = codec_dai->capture_widget; |
3405 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3406 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
9887c20b LPC |
3407 | codec_dai->codec->name, source->name, |
3408 | cpu_dai->platform->name, sink->name); | |
b893ea5f | 3409 | |
9887c20b LPC |
3410 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3411 | NULL, NULL); | |
b893ea5f | 3412 | } |
b893ea5f LG |
3413 | } |
3414 | } | |
3415 | ||
c471fdd1 | 3416 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3417 | int event) |
2b97eabc | 3418 | { |
c471fdd1 | 3419 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3420 | |
c471fdd1 LPC |
3421 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3422 | w = dai->playback_widget; | |
3423 | else | |
3424 | w = dai->capture_widget; | |
fe360685 | 3425 | |
c471fdd1 LPC |
3426 | if (w) { |
3427 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3428 | |
3429 | switch (event) { | |
3430 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3431 | w->active = 1; |
d9b0951b LG |
3432 | break; |
3433 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3434 | w->active = 0; |
d9b0951b LG |
3435 | break; |
3436 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3437 | case SND_SOC_DAPM_STREAM_RESUME: | |
3438 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3439 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3440 | break; | |
3441 | } | |
3442 | } | |
c471fdd1 | 3443 | } |
d9b0951b | 3444 | |
c471fdd1 LPC |
3445 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3446 | int event) | |
3447 | { | |
3448 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); | |
3449 | soc_dapm_dai_stream_event(rtd->codec_dai, stream, event); | |
2b97eabc | 3450 | |
95dd5cd6 | 3451 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3452 | } |
3453 | ||
3454 | /** | |
3455 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3456 | * @rtd: PCM runtime data | |
3457 | * @stream: stream name | |
3458 | * @event: stream event | |
3459 | * | |
3460 | * Sends a stream event to the dapm core. The core then makes any | |
3461 | * necessary widget power changes. | |
3462 | * | |
3463 | * Returns 0 for success else error. | |
3464 | */ | |
d9b0951b LG |
3465 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3466 | int event) | |
ce6120cc | 3467 | { |
a73fb2df | 3468 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3469 | |
3cd04343 | 3470 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3471 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3472 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3473 | } |
2b97eabc | 3474 | |
11391100 CK |
3475 | /** |
3476 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3477 | * @dapm: DAPM context | |
3478 | * @pin: pin name | |
3479 | * | |
3480 | * Enables input/output pin and its parents or children widgets iff there is | |
3481 | * a valid audio route and active audio stream. | |
3482 | * | |
3483 | * Requires external locking. | |
3484 | * | |
3485 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3486 | * do any widget power switching. | |
3487 | */ | |
3488 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3489 | const char *pin) | |
3490 | { | |
3491 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3492 | } | |
3493 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3494 | ||
2b97eabc | 3495 | /** |
a5302181 | 3496 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3497 | * @dapm: DAPM context |
a5302181 | 3498 | * @pin: pin name |
2b97eabc | 3499 | * |
74b8f955 | 3500 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3501 | * a valid audio route and active audio stream. |
11391100 | 3502 | * |
a5302181 LG |
3503 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3504 | * do any widget power switching. | |
2b97eabc | 3505 | */ |
ce6120cc | 3506 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3507 | { |
11391100 CK |
3508 | int ret; |
3509 | ||
3510 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3511 | ||
3512 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3513 | ||
3514 | mutex_unlock(&dapm->card->dapm_mutex); | |
3515 | ||
3516 | return ret; | |
a5302181 LG |
3517 | } |
3518 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3519 | |
da34183e | 3520 | /** |
11391100 | 3521 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3522 | * @dapm: DAPM context |
da34183e MB |
3523 | * @pin: pin name |
3524 | * | |
3525 | * Enables input/output pin regardless of any other state. This is | |
3526 | * intended for use with microphone bias supplies used in microphone | |
3527 | * jack detection. | |
3528 | * | |
11391100 CK |
3529 | * Requires external locking. |
3530 | * | |
da34183e MB |
3531 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3532 | * do any widget power switching. | |
3533 | */ | |
11391100 CK |
3534 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3535 | const char *pin) | |
da34183e | 3536 | { |
91a5fca4 | 3537 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3538 | |
91a5fca4 | 3539 | if (!w) { |
30a6a1a4 | 3540 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3541 | return -EINVAL; |
0d86733c MB |
3542 | } |
3543 | ||
30a6a1a4 | 3544 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3545 | w->connected = 1; |
3546 | w->force = 1; | |
75c1f891 | 3547 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3548 | |
91a5fca4 | 3549 | return 0; |
da34183e | 3550 | } |
11391100 CK |
3551 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3552 | ||
3553 | /** | |
3554 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3555 | * @dapm: DAPM context | |
3556 | * @pin: pin name | |
3557 | * | |
3558 | * Enables input/output pin regardless of any other state. This is | |
3559 | * intended for use with microphone bias supplies used in microphone | |
3560 | * jack detection. | |
3561 | * | |
3562 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3563 | * do any widget power switching. | |
3564 | */ | |
3565 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3566 | const char *pin) | |
3567 | { | |
3568 | int ret; | |
3569 | ||
3570 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3571 | ||
3572 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3573 | ||
3574 | mutex_unlock(&dapm->card->dapm_mutex); | |
3575 | ||
3576 | return ret; | |
3577 | } | |
da34183e MB |
3578 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3579 | ||
11391100 CK |
3580 | /** |
3581 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3582 | * @dapm: DAPM context | |
3583 | * @pin: pin name | |
3584 | * | |
3585 | * Disables input/output pin and its parents or children widgets. | |
3586 | * | |
3587 | * Requires external locking. | |
3588 | * | |
3589 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3590 | * do any widget power switching. | |
3591 | */ | |
3592 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3593 | const char *pin) | |
3594 | { | |
3595 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3596 | } | |
3597 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3598 | ||
a5302181 LG |
3599 | /** |
3600 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3601 | * @dapm: DAPM context |
a5302181 LG |
3602 | * @pin: pin name |
3603 | * | |
74b8f955 | 3604 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3605 | * |
a5302181 LG |
3606 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3607 | * do any widget power switching. | |
3608 | */ | |
ce6120cc LG |
3609 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3610 | const char *pin) | |
a5302181 | 3611 | { |
11391100 CK |
3612 | int ret; |
3613 | ||
3614 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3615 | ||
3616 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3617 | ||
3618 | mutex_unlock(&dapm->card->dapm_mutex); | |
3619 | ||
3620 | return ret; | |
2b97eabc | 3621 | } |
a5302181 | 3622 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3623 | |
11391100 CK |
3624 | /** |
3625 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3626 | * @dapm: DAPM context | |
3627 | * @pin: pin name | |
3628 | * | |
3629 | * Marks the specified pin as being not connected, disabling it along | |
3630 | * any parent or child widgets. At present this is identical to | |
3631 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3632 | * additional things such as disabling controls which only affect | |
3633 | * paths through the pin. | |
3634 | * | |
3635 | * Requires external locking. | |
3636 | * | |
3637 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3638 | * do any widget power switching. | |
3639 | */ | |
3640 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3641 | const char *pin) | |
3642 | { | |
3643 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3644 | } | |
3645 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3646 | ||
5817b52a MB |
3647 | /** |
3648 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3649 | * @dapm: DAPM context |
5817b52a MB |
3650 | * @pin: pin name |
3651 | * | |
3652 | * Marks the specified pin as being not connected, disabling it along | |
3653 | * any parent or child widgets. At present this is identical to | |
3654 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3655 | * additional things such as disabling controls which only affect | |
3656 | * paths through the pin. | |
3657 | * | |
3658 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3659 | * do any widget power switching. | |
3660 | */ | |
ce6120cc | 3661 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3662 | { |
11391100 CK |
3663 | int ret; |
3664 | ||
3665 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3666 | ||
3667 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3668 | ||
3669 | mutex_unlock(&dapm->card->dapm_mutex); | |
3670 | ||
3671 | return ret; | |
5817b52a MB |
3672 | } |
3673 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3674 | ||
eeec12bf | 3675 | /** |
a5302181 | 3676 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3677 | * @dapm: DAPM context |
a5302181 | 3678 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3679 | * |
a5302181 | 3680 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3681 | * |
a5302181 | 3682 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3683 | */ |
ce6120cc LG |
3684 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3685 | const char *pin) | |
eeec12bf | 3686 | { |
91a5fca4 | 3687 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3688 | |
91a5fca4 LPC |
3689 | if (w) |
3690 | return w->connected; | |
a68b38ad | 3691 | |
eeec12bf GG |
3692 | return 0; |
3693 | } | |
a5302181 | 3694 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3695 | |
1547aba9 MB |
3696 | /** |
3697 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3698 | * @dapm: DAPM context |
1547aba9 MB |
3699 | * @pin: audio signal pin endpoint (or start point) |
3700 | * | |
3701 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3702 | * system is disabled a path between two endpoints flagged as ignoring | |
3703 | * suspend will not be disabled. The path must already be enabled via | |
3704 | * normal means at suspend time, it will not be turned on if it was not | |
3705 | * already enabled. | |
3706 | */ | |
ce6120cc LG |
3707 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3708 | const char *pin) | |
1547aba9 | 3709 | { |
91a5fca4 | 3710 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3711 | |
91a5fca4 | 3712 | if (!w) { |
30a6a1a4 | 3713 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3714 | return -EINVAL; |
1547aba9 MB |
3715 | } |
3716 | ||
91a5fca4 LPC |
3717 | w->ignore_suspend = 1; |
3718 | ||
3719 | return 0; | |
1547aba9 MB |
3720 | } |
3721 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3722 | ||
1633281b SW |
3723 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3724 | struct snd_soc_dapm_widget *w) | |
3725 | { | |
3726 | struct snd_soc_dapm_path *p; | |
3727 | ||
3728 | list_for_each_entry(p, &card->paths, list) { | |
3729 | if ((p->source == w) || (p->sink == w)) { | |
3730 | dev_dbg(card->dev, | |
3731 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3732 | p->source->name, p->source->id, p->source->dapm, | |
3733 | p->sink->name, p->sink->id, p->sink->dapm); | |
3734 | ||
3735 | /* Connected to something other than the codec */ | |
3736 | if (p->source->dapm != p->sink->dapm) | |
3737 | return true; | |
3738 | /* | |
3739 | * Loopback connection from codec external pin to | |
3740 | * codec external pin | |
3741 | */ | |
3742 | if (p->sink->id == snd_soc_dapm_input) { | |
3743 | switch (p->source->id) { | |
3744 | case snd_soc_dapm_output: | |
3745 | case snd_soc_dapm_micbias: | |
3746 | return true; | |
3747 | default: | |
3748 | break; | |
3749 | } | |
3750 | } | |
3751 | } | |
3752 | } | |
3753 | ||
3754 | return false; | |
3755 | } | |
3756 | ||
3757 | /** | |
3758 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3759 | * @codec: The codec whose pins should be processed | |
3760 | * | |
3761 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3762 | * which are unused. Pins are used if they are connected externally to the | |
3763 | * codec, whether that be to some other device, or a loop-back connection to | |
3764 | * the codec itself. | |
3765 | */ | |
3766 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3767 | { | |
3768 | struct snd_soc_card *card = codec->card; | |
3769 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3770 | struct snd_soc_dapm_widget *w; | |
3771 | ||
30a6a1a4 | 3772 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3773 | &card->dapm, &codec->dapm); |
3774 | ||
3775 | list_for_each_entry(w, &card->widgets, list) { | |
3776 | if (w->dapm != dapm) | |
3777 | continue; | |
3778 | switch (w->id) { | |
3779 | case snd_soc_dapm_input: | |
3780 | case snd_soc_dapm_output: | |
3781 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3782 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3783 | w->name); |
3784 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3785 | dev_dbg(codec->dev, |
1633281b SW |
3786 | "... Not in map; disabling\n"); |
3787 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3788 | } | |
3789 | break; | |
3790 | default: | |
3791 | break; | |
3792 | } | |
3793 | } | |
3794 | } | |
3795 | ||
2b97eabc RP |
3796 | /** |
3797 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3798 | * @dapm: DAPM context |
2b97eabc RP |
3799 | * |
3800 | * Free all dapm widgets and resources. | |
3801 | */ | |
ce6120cc | 3802 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3803 | { |
ce6120cc | 3804 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3805 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3806 | dapm_free_widgets(dapm); |
7be31be8 | 3807 | list_del(&dapm->list); |
2b97eabc RP |
3808 | } |
3809 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3810 | ||
57996358 | 3811 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 3812 | { |
01005a72 | 3813 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3814 | struct snd_soc_dapm_widget *w; |
3815 | LIST_HEAD(down_list); | |
3816 | int powerdown = 0; | |
3817 | ||
01005a72 LG |
3818 | mutex_lock(&card->dapm_mutex); |
3819 | ||
97c866de JN |
3820 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3821 | if (w->dapm != dapm) | |
3822 | continue; | |
51737470 | 3823 | if (w->power) { |
828a842f | 3824 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3825 | w->power = 0; |
51737470 MB |
3826 | powerdown = 1; |
3827 | } | |
3828 | } | |
3829 | ||
3830 | /* If there were no widgets to power down we're already in | |
3831 | * standby. | |
3832 | */ | |
3833 | if (powerdown) { | |
7679e42e MB |
3834 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3835 | snd_soc_dapm_set_bias_level(dapm, | |
3836 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3837 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3838 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3839 | snd_soc_dapm_set_bias_level(dapm, | |
3840 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3841 | } |
01005a72 LG |
3842 | |
3843 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3844 | } |
3845 | ||
3846 | /* | |
3847 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3848 | */ | |
3849 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3850 | { | |
57996358 | 3851 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3852 | |
57996358 | 3853 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
3854 | if (dapm != &card->dapm) { |
3855 | soc_dapm_shutdown_dapm(dapm); | |
3856 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
3857 | snd_soc_dapm_set_bias_level(dapm, | |
3858 | SND_SOC_BIAS_OFF); | |
3859 | } | |
ce6120cc | 3860 | } |
17282ba4 XX |
3861 | |
3862 | soc_dapm_shutdown_dapm(&card->dapm); | |
3863 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
3864 | snd_soc_dapm_set_bias_level(&card->dapm, | |
3865 | SND_SOC_BIAS_OFF); | |
51737470 MB |
3866 | } |
3867 | ||
2b97eabc | 3868 | /* Module information */ |
d331124d | 3869 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3870 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3871 | MODULE_LICENSE("GPL"); |