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 | ||
5dc0158a | 329 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
330 | { |
331 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
332 | ||
333 | return data->value; | |
334 | } | |
5dc0158a | 335 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
336 | |
337 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
338 | unsigned int value) | |
339 | { | |
340 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
341 | ||
342 | if (data->value == value) | |
343 | return false; | |
344 | ||
57295073 LPC |
345 | if (data->widget) |
346 | data->widget->on_val = value; | |
347 | ||
cf7c1de2 LPC |
348 | data->value = value; |
349 | ||
350 | return true; | |
351 | } | |
352 | ||
ce0fc93a LPC |
353 | /** |
354 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
355 | * kcontrol | |
356 | * @kcontrol: The kcontrol | |
357 | * | |
358 | * Note: This function must only be used on kcontrols that are known to have | |
359 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
360 | */ | |
361 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
362 | struct snd_kcontrol *kcontrol) | |
363 | { | |
364 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
365 | } | |
366 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
367 | ||
eee5d7f9 LPC |
368 | /** |
369 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
370 | * @kcontrol: The kcontrol | |
371 | */ | |
372 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
373 | { | |
ce0fc93a | 374 | return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); |
eee5d7f9 LPC |
375 | } |
376 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
377 | ||
6c120e19 LG |
378 | static void dapm_reset(struct snd_soc_card *card) |
379 | { | |
380 | struct snd_soc_dapm_widget *w; | |
381 | ||
f9fa2b18 MB |
382 | lockdep_assert_held(&card->dapm_mutex); |
383 | ||
6c120e19 LG |
384 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
385 | ||
386 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 387 | w->new_power = w->power; |
6c120e19 LG |
388 | w->power_checked = false; |
389 | w->inputs = -1; | |
390 | w->outputs = -1; | |
391 | } | |
392 | } | |
393 | ||
94f99c87 LPC |
394 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
395 | { | |
396 | if (!dapm->component) | |
397 | return NULL; | |
398 | return dapm->component->name_prefix; | |
399 | } | |
400 | ||
ce0fc93a | 401 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 402 | unsigned int *value) |
0445bdf4 | 403 | { |
ce0fc93a | 404 | if (!dapm->component) |
e2c330b9 | 405 | return -EIO; |
ce0fc93a | 406 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
407 | } |
408 | ||
ce0fc93a | 409 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 410 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 411 | { |
ce0fc93a | 412 | if (!dapm->component) |
e2c330b9 | 413 | return -EIO; |
ce0fc93a | 414 | return snd_soc_component_update_bits_async(dapm->component, reg, |
e2c330b9 | 415 | mask, value); |
49575fb5 LG |
416 | } |
417 | ||
ce0fc93a LPC |
418 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
419 | int reg, unsigned int mask, unsigned int value) | |
420 | { | |
421 | if (!dapm->component) | |
422 | return -EIO; | |
423 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
424 | } | |
425 | ||
eb270e98 MB |
426 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
427 | { | |
e2c330b9 LPC |
428 | if (dapm->component) |
429 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
430 | } |
431 | ||
452c5eaa MB |
432 | /** |
433 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 434 | * @dapm: DAPM context |
452c5eaa MB |
435 | * @level: level to configure |
436 | * | |
437 | * Configure the bias (power) levels for the SoC audio device. | |
438 | * | |
439 | * Returns 0 for success else error. | |
440 | */ | |
ed5a4c47 | 441 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 442 | enum snd_soc_bias_level level) |
452c5eaa | 443 | { |
ed5a4c47 | 444 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
445 | int ret = 0; |
446 | ||
84e90930 MB |
447 | trace_snd_soc_bias_level_start(card, level); |
448 | ||
f0fba2ad | 449 | if (card && card->set_bias_level) |
d4c6005f | 450 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
451 | if (ret != 0) |
452 | goto out; | |
453 | ||
68f831c2 LPC |
454 | if (dapm->set_bias_level) |
455 | ret = dapm->set_bias_level(dapm, level); | |
456 | else if (!card || dapm != &card->dapm) | |
4123128e LG |
457 | dapm->bias_level = level; |
458 | ||
171ec6b0 MB |
459 | if (ret != 0) |
460 | goto out; | |
461 | ||
462 | if (card && card->set_bias_level_post) | |
d4c6005f | 463 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 464 | out: |
84e90930 MB |
465 | trace_snd_soc_bias_level_done(card, level); |
466 | ||
452c5eaa MB |
467 | return ret; |
468 | } | |
469 | ||
74b8f955 | 470 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 471 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
472 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
473 | struct snd_soc_dapm_path *path, const char *control_name, | |
474 | const struct snd_kcontrol_new *kcontrol) | |
2b97eabc | 475 | { |
2b97eabc | 476 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 477 | unsigned int val, item; |
2b97eabc | 478 | int i; |
24ff33ac | 479 | |
234c0b8f | 480 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 481 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
482 | val = (val >> e->shift_l) & e->mask; |
483 | item = snd_soc_enum_val_to_item(e, val); | |
484 | } else { | |
24ff33ac DP |
485 | /* since a virtual mux has no backing registers to |
486 | * decide which path to connect, it will try to match | |
487 | * with the first enumeration. This is to ensure | |
488 | * that the default mux choice (the first) will be | |
489 | * correctly powered up during initialization. | |
490 | */ | |
234c0b8f | 491 | item = 0; |
24ff33ac | 492 | } |
2e72f8e3 | 493 | |
9a8d38db | 494 | for (i = 0; i < e->items; i++) { |
2b97eabc | 495 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 496 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
497 | list_add(&path->list_sink, &dest->sources); |
498 | list_add(&path->list_source, &src->sinks); | |
499 | path->name = (char*)e->texts[i]; | |
234c0b8f LPC |
500 | if (i == item) |
501 | path->connect = 1; | |
502 | else | |
503 | path->connect = 0; | |
2b97eabc RP |
504 | return 0; |
505 | } | |
506 | } | |
507 | ||
508 | return -ENODEV; | |
509 | } | |
510 | ||
234c0b8f LPC |
511 | /* set up initial codec paths */ |
512 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_widget *w, | |
513 | struct snd_soc_dapm_path *p, int i) | |
514 | { | |
515 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
516 | w->kcontrol_news[i].private_value; | |
517 | unsigned int reg = mc->reg; | |
518 | unsigned int shift = mc->shift; | |
519 | unsigned int max = mc->max; | |
520 | unsigned int mask = (1 << fls(max)) - 1; | |
521 | unsigned int invert = mc->invert; | |
522 | unsigned int val; | |
523 | ||
524 | if (reg != SND_SOC_NOPM) { | |
ce0fc93a | 525 | soc_dapm_read(w->dapm, reg, &val); |
234c0b8f LPC |
526 | val = (val >> shift) & mask; |
527 | if (invert) | |
528 | val = max - val; | |
529 | p->connect = !!val; | |
530 | } else { | |
531 | p->connect = 0; | |
532 | } | |
533 | } | |
534 | ||
74b8f955 | 535 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 536 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
537 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
538 | struct snd_soc_dapm_path *path, const char *control_name) | |
539 | { | |
540 | int i; | |
541 | ||
542 | /* search for mixer kcontrol */ | |
543 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 544 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 545 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
546 | list_add(&path->list_sink, &dest->sources); |
547 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 548 | path->name = dest->kcontrol_news[i].name; |
234c0b8f | 549 | dapm_set_mixer_path_status(dest, path, i); |
2b97eabc RP |
550 | return 0; |
551 | } | |
552 | } | |
553 | return -ENODEV; | |
554 | } | |
555 | ||
af46800b | 556 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 557 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
558 | const struct snd_kcontrol_new *kcontrol_new, |
559 | struct snd_kcontrol **kcontrol) | |
560 | { | |
561 | struct snd_soc_dapm_widget *w; | |
562 | int i; | |
563 | ||
564 | *kcontrol = NULL; | |
565 | ||
566 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
567 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
568 | continue; | |
af46800b SW |
569 | for (i = 0; i < w->num_kcontrols; i++) { |
570 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
571 | if (w->kcontrols) | |
572 | *kcontrol = w->kcontrols[i]; | |
573 | return 1; | |
574 | } | |
575 | } | |
576 | } | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
85762e71 SW |
581 | /* |
582 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
583 | * create it. Either way, add the widget into the control's widget list | |
584 | */ | |
585 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 586 | int kci) |
2b97eabc | 587 | { |
4b80b8c2 | 588 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 589 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 590 | const char *prefix; |
85762e71 SW |
591 | size_t prefix_len; |
592 | int shared; | |
593 | struct snd_kcontrol *kcontrol; | |
85762e71 | 594 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 595 | char *long_name = NULL; |
85762e71 | 596 | const char *name; |
e5092c96 | 597 | int ret = 0; |
efb7ac3f | 598 | |
94f99c87 | 599 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
600 | if (prefix) |
601 | prefix_len = strlen(prefix) + 1; | |
602 | else | |
603 | prefix_len = 0; | |
604 | ||
85762e71 SW |
605 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
606 | &kcontrol); | |
2b97eabc | 607 | |
85762e71 SW |
608 | if (!kcontrol) { |
609 | if (shared) { | |
610 | wname_in_long_name = false; | |
611 | kcname_in_long_name = true; | |
612 | } else { | |
613 | switch (w->id) { | |
614 | case snd_soc_dapm_switch: | |
615 | case snd_soc_dapm_mixer: | |
616 | wname_in_long_name = true; | |
617 | kcname_in_long_name = true; | |
618 | break; | |
619 | case snd_soc_dapm_mixer_named_ctl: | |
620 | wname_in_long_name = false; | |
621 | kcname_in_long_name = true; | |
622 | break; | |
623 | case snd_soc_dapm_mux: | |
85762e71 SW |
624 | wname_in_long_name = true; |
625 | kcname_in_long_name = false; | |
626 | break; | |
627 | default: | |
85762e71 | 628 | return -EINVAL; |
82cd8764 | 629 | } |
85762e71 SW |
630 | } |
631 | ||
632 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
633 | /* |
634 | * The control will get a prefix from the control | |
635 | * creation process but we're also using the same | |
636 | * prefix for widgets so cut the prefix off the | |
637 | * front of the widget name. | |
ca9c1aae | 638 | */ |
2b581074 | 639 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
640 | w->name + prefix_len, |
641 | w->kcontrol_news[kci].name); | |
e84357f7 | 642 | if (long_name == NULL) |
2b581074 | 643 | return -ENOMEM; |
85762e71 SW |
644 | |
645 | name = long_name; | |
646 | } else if (wname_in_long_name) { | |
647 | long_name = NULL; | |
648 | name = w->name + prefix_len; | |
649 | } else { | |
650 | long_name = NULL; | |
651 | name = w->kcontrol_news[kci].name; | |
652 | } | |
ca9c1aae | 653 | |
e84357f7 | 654 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 655 | prefix); |
e5092c96 DM |
656 | if (!kcontrol) { |
657 | ret = -ENOMEM; | |
658 | goto exit_free; | |
659 | } | |
660 | ||
9356e9d5 | 661 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
662 | |
663 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
664 | if (ret) { | |
665 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 666 | goto exit_free; |
e84357f7 LPC |
667 | } |
668 | ||
85762e71 SW |
669 | ret = snd_ctl_add(card, kcontrol); |
670 | if (ret < 0) { | |
671 | dev_err(dapm->dev, | |
672 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
673 | w->name, name, ret); | |
e5092c96 | 674 | goto exit_free; |
85762e71 | 675 | } |
85762e71 | 676 | } |
2b97eabc | 677 | |
2c75bdf3 | 678 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
679 | if (ret == 0) |
680 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 681 | |
e5092c96 DM |
682 | exit_free: |
683 | kfree(long_name); | |
ca9c1aae | 684 | |
e5092c96 | 685 | return ret; |
85762e71 | 686 | } |
219b93f5 | 687 | |
85762e71 SW |
688 | /* create new dapm mixer control */ |
689 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
690 | { | |
691 | int i, ret; | |
692 | struct snd_soc_dapm_path *path; | |
693 | ||
694 | /* add kcontrol */ | |
695 | for (i = 0; i < w->num_kcontrols; i++) { | |
696 | /* match name */ | |
697 | list_for_each_entry(path, &w->sources, list_sink) { | |
698 | /* mixer/mux paths name must match control name */ | |
699 | if (path->name != (char *)w->kcontrol_news[i].name) | |
700 | continue; | |
701 | ||
702 | if (w->kcontrols[i]) { | |
5106b92f | 703 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 704 | continue; |
2b97eabc | 705 | } |
85762e71 | 706 | |
946d92a1 | 707 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
708 | if (ret < 0) |
709 | return ret; | |
946d92a1 MB |
710 | |
711 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
712 | } |
713 | } | |
85762e71 SW |
714 | |
715 | return 0; | |
2b97eabc RP |
716 | } |
717 | ||
718 | /* create new dapm mux control */ | |
4b80b8c2 | 719 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 720 | { |
4b80b8c2 | 721 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 722 | struct snd_soc_dapm_path *path; |
af46800b | 723 | int ret; |
2b97eabc | 724 | |
af46800b SW |
725 | if (w->num_kcontrols != 1) { |
726 | dev_err(dapm->dev, | |
30a6a1a4 | 727 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 728 | w->name); |
2b97eabc RP |
729 | return -EINVAL; |
730 | } | |
731 | ||
fe581391 | 732 | if (list_empty(&w->sources)) { |
85762e71 SW |
733 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
734 | return -EINVAL; | |
af46800b | 735 | } |
ce6120cc | 736 | |
946d92a1 | 737 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
738 | if (ret < 0) |
739 | return ret; | |
fad59888 | 740 | |
2b97eabc | 741 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 742 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 743 | |
af46800b | 744 | return 0; |
2b97eabc RP |
745 | } |
746 | ||
747 | /* create new dapm volume control */ | |
4b80b8c2 | 748 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 749 | { |
a6c65736 | 750 | if (w->num_kcontrols) |
f7d41ae8 | 751 | dev_err(w->dapm->dev, |
30a6a1a4 | 752 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 753 | |
a6c65736 | 754 | return 0; |
2b97eabc RP |
755 | } |
756 | ||
757 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
758 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
759 | struct list_head *sink) | |
2b97eabc RP |
760 | { |
761 | struct snd_soc_dapm_path *p; | |
762 | ||
1059ecfa RT |
763 | list_for_each_entry(p, sink, list_source) { |
764 | if (p->walked) { | |
765 | p->walked = 0; | |
766 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
767 | } | |
768 | } | |
2b97eabc RP |
769 | } |
770 | ||
1059ecfa RT |
771 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
772 | struct list_head *source) | |
2b97eabc RP |
773 | { |
774 | struct snd_soc_dapm_path *p; | |
775 | ||
1059ecfa RT |
776 | list_for_each_entry(p, source, list_sink) { |
777 | if (p->walked) { | |
778 | p->walked = 0; | |
779 | dapm_clear_walk_input(dapm, &p->source->sources); | |
780 | } | |
781 | } | |
2b97eabc RP |
782 | } |
783 | ||
1059ecfa | 784 | |
9949788b MB |
785 | /* We implement power down on suspend by checking the power state of |
786 | * the ALSA card - when we are suspending the ALSA state for the card | |
787 | * is set to D3. | |
788 | */ | |
789 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
790 | { | |
12ea2c78 | 791 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 792 | |
f0fba2ad | 793 | switch (level) { |
9949788b MB |
794 | case SNDRV_CTL_POWER_D3hot: |
795 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 796 | if (widget->ignore_suspend) |
30a6a1a4 | 797 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 798 | widget->name); |
1547aba9 | 799 | return widget->ignore_suspend; |
9949788b MB |
800 | default: |
801 | return 1; | |
802 | } | |
803 | } | |
804 | ||
ec2e3031 LG |
805 | /* add widget to list if it's not already in the list */ |
806 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
807 | struct snd_soc_dapm_widget *w) | |
808 | { | |
809 | struct snd_soc_dapm_widget_list *wlist; | |
810 | int wlistsize, wlistentries, i; | |
811 | ||
812 | if (*list == NULL) | |
813 | return -EINVAL; | |
814 | ||
815 | wlist = *list; | |
816 | ||
817 | /* is this widget already in the list */ | |
818 | for (i = 0; i < wlist->num_widgets; i++) { | |
819 | if (wlist->widgets[i] == w) | |
820 | return 0; | |
821 | } | |
822 | ||
823 | /* allocate some new space */ | |
824 | wlistentries = wlist->num_widgets + 1; | |
825 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
826 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
827 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
828 | if (*list == NULL) { | |
30a6a1a4 | 829 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
830 | w->name); |
831 | return -ENOMEM; | |
832 | } | |
833 | wlist = *list; | |
834 | ||
835 | /* insert the widget */ | |
30a6a1a4 | 836 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
837 | w->name, wlist->num_widgets); |
838 | ||
839 | wlist->widgets[wlist->num_widgets] = w; | |
840 | wlist->num_widgets++; | |
841 | return 1; | |
842 | } | |
843 | ||
2b97eabc RP |
844 | /* |
845 | * Recursively check for a completed path to an active or physically connected | |
846 | * output widget. Returns number of complete paths. | |
847 | */ | |
ec2e3031 LG |
848 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
849 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
850 | { |
851 | struct snd_soc_dapm_path *path; | |
852 | int con = 0; | |
853 | ||
024dc078 MB |
854 | if (widget->outputs >= 0) |
855 | return widget->outputs; | |
856 | ||
de02d078 MB |
857 | DAPM_UPDATE_STAT(widget, path_checks); |
858 | ||
62ea874a MB |
859 | switch (widget->id) { |
860 | case snd_soc_dapm_supply: | |
861 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 862 | case snd_soc_dapm_clock_supply: |
57295073 | 863 | case snd_soc_dapm_kcontrol: |
246d0a17 | 864 | return 0; |
62ea874a MB |
865 | default: |
866 | break; | |
867 | } | |
246d0a17 | 868 | |
010ff262 MB |
869 | switch (widget->id) { |
870 | case snd_soc_dapm_adc: | |
871 | case snd_soc_dapm_aif_out: | |
4616274d | 872 | case snd_soc_dapm_dai_out: |
024dc078 MB |
873 | if (widget->active) { |
874 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
875 | return widget->outputs; | |
876 | } | |
010ff262 MB |
877 | default: |
878 | break; | |
879 | } | |
2b97eabc RP |
880 | |
881 | if (widget->connected) { | |
882 | /* connected pin ? */ | |
024dc078 MB |
883 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
884 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
885 | return widget->outputs; | |
886 | } | |
2b97eabc RP |
887 | |
888 | /* connected jack or spk ? */ | |
024dc078 MB |
889 | if (widget->id == snd_soc_dapm_hp || |
890 | widget->id == snd_soc_dapm_spk || | |
891 | (widget->id == snd_soc_dapm_line && | |
892 | !list_empty(&widget->sources))) { | |
893 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
894 | return widget->outputs; | |
895 | } | |
2b97eabc RP |
896 | } |
897 | ||
898 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
899 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
900 | ||
bf3a9e13 MB |
901 | if (path->weak) |
902 | continue; | |
903 | ||
8af294b4 MB |
904 | if (path->walking) |
905 | return 1; | |
906 | ||
2b97eabc RP |
907 | if (path->walked) |
908 | continue; | |
909 | ||
ec2e3031 LG |
910 | trace_snd_soc_dapm_output_path(widget, path); |
911 | ||
2b97eabc RP |
912 | if (path->sink && path->connect) { |
913 | path->walked = 1; | |
8af294b4 | 914 | path->walking = 1; |
ec2e3031 LG |
915 | |
916 | /* do we need to add this widget to the list ? */ | |
917 | if (list) { | |
918 | int err; | |
919 | err = dapm_list_add_widget(list, path->sink); | |
920 | if (err < 0) { | |
30a6a1a4 LG |
921 | dev_err(widget->dapm->dev, |
922 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 923 | widget->name); |
8af294b4 | 924 | path->walking = 0; |
ec2e3031 LG |
925 | return con; |
926 | } | |
927 | } | |
928 | ||
929 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
930 | |
931 | path->walking = 0; | |
2b97eabc RP |
932 | } |
933 | } | |
934 | ||
024dc078 MB |
935 | widget->outputs = con; |
936 | ||
2b97eabc RP |
937 | return con; |
938 | } | |
939 | ||
940 | /* | |
941 | * Recursively check for a completed path to an active or physically connected | |
942 | * input widget. Returns number of complete paths. | |
943 | */ | |
ec2e3031 LG |
944 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
945 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
946 | { |
947 | struct snd_soc_dapm_path *path; | |
948 | int con = 0; | |
949 | ||
024dc078 MB |
950 | if (widget->inputs >= 0) |
951 | return widget->inputs; | |
952 | ||
de02d078 MB |
953 | DAPM_UPDATE_STAT(widget, path_checks); |
954 | ||
62ea874a MB |
955 | switch (widget->id) { |
956 | case snd_soc_dapm_supply: | |
957 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 958 | case snd_soc_dapm_clock_supply: |
57295073 | 959 | case snd_soc_dapm_kcontrol: |
246d0a17 | 960 | return 0; |
62ea874a MB |
961 | default: |
962 | break; | |
963 | } | |
246d0a17 | 964 | |
2b97eabc | 965 | /* active stream ? */ |
010ff262 MB |
966 | switch (widget->id) { |
967 | case snd_soc_dapm_dac: | |
968 | case snd_soc_dapm_aif_in: | |
4616274d | 969 | case snd_soc_dapm_dai_in: |
024dc078 MB |
970 | if (widget->active) { |
971 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
972 | return widget->inputs; | |
973 | } | |
010ff262 MB |
974 | default: |
975 | break; | |
976 | } | |
2b97eabc RP |
977 | |
978 | if (widget->connected) { | |
979 | /* connected pin ? */ | |
024dc078 MB |
980 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
981 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
982 | return widget->inputs; | |
983 | } | |
2b97eabc RP |
984 | |
985 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
986 | if (widget->id == snd_soc_dapm_vmid) { |
987 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
988 | return widget->inputs; | |
989 | } | |
2b97eabc RP |
990 | |
991 | /* connected jack ? */ | |
eaeae5d9 | 992 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
993 | (widget->id == snd_soc_dapm_line && |
994 | !list_empty(&widget->sinks))) { | |
995 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
996 | return widget->inputs; | |
997 | } | |
998 | ||
1ab97c8c MB |
999 | /* signal generator */ |
1000 | if (widget->id == snd_soc_dapm_siggen) { | |
1001 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1002 | return widget->inputs; | |
1003 | } | |
2b97eabc RP |
1004 | } |
1005 | ||
1006 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1007 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1008 | ||
bf3a9e13 MB |
1009 | if (path->weak) |
1010 | continue; | |
1011 | ||
8af294b4 MB |
1012 | if (path->walking) |
1013 | return 1; | |
1014 | ||
2b97eabc RP |
1015 | if (path->walked) |
1016 | continue; | |
1017 | ||
ec2e3031 LG |
1018 | trace_snd_soc_dapm_input_path(widget, path); |
1019 | ||
2b97eabc RP |
1020 | if (path->source && path->connect) { |
1021 | path->walked = 1; | |
8af294b4 | 1022 | path->walking = 1; |
ec2e3031 LG |
1023 | |
1024 | /* do we need to add this widget to the list ? */ | |
1025 | if (list) { | |
1026 | int err; | |
90c6ce0d | 1027 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1028 | if (err < 0) { |
30a6a1a4 LG |
1029 | dev_err(widget->dapm->dev, |
1030 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1031 | widget->name); |
8af294b4 | 1032 | path->walking = 0; |
ec2e3031 LG |
1033 | return con; |
1034 | } | |
1035 | } | |
1036 | ||
1037 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1038 | |
1039 | path->walking = 0; | |
2b97eabc RP |
1040 | } |
1041 | } | |
1042 | ||
024dc078 MB |
1043 | widget->inputs = con; |
1044 | ||
2b97eabc RP |
1045 | return con; |
1046 | } | |
1047 | ||
ec2e3031 LG |
1048 | /** |
1049 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1050 | * @dai: the soc DAI. | |
1051 | * @stream: stream direction. | |
1052 | * @list: list of active widgets for this stream. | |
1053 | * | |
1054 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1055 | * the initial stream specified by name. This takes into account | |
1056 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1057 | * | |
1058 | * Returns the number of valid paths or negative error. | |
1059 | */ | |
1060 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1061 | struct snd_soc_dapm_widget_list **list) | |
1062 | { | |
1063 | struct snd_soc_card *card = dai->card; | |
1064 | int paths; | |
1065 | ||
1066 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1067 | dapm_reset(card); | |
1068 | ||
1059ecfa | 1069 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1070 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1071 | dapm_clear_walk_output(&card->dapm, |
1072 | &dai->playback_widget->sinks); | |
1073 | } else { | |
d298caae | 1074 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1075 | dapm_clear_walk_input(&card->dapm, |
1076 | &dai->capture_widget->sources); | |
1077 | } | |
ec2e3031 LG |
1078 | |
1079 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1080 | mutex_unlock(&card->dapm_mutex); |
1081 | ||
1082 | return paths; | |
1083 | } | |
1084 | ||
62ea874a MB |
1085 | /* |
1086 | * Handler for regulator supply widget. | |
1087 | */ | |
1088 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1089 | struct snd_kcontrol *kcontrol, int event) | |
1090 | { | |
c05b84d1 MB |
1091 | int ret; |
1092 | ||
eb270e98 MB |
1093 | soc_dapm_async_complete(w->dapm); |
1094 | ||
c05b84d1 | 1095 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1096 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1097 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1098 | if (ret != 0) |
1099 | dev_warn(w->dapm->dev, | |
30686c35 | 1100 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1101 | w->name, ret); |
1102 | } | |
1103 | ||
a3cc056b | 1104 | return regulator_enable(w->regulator); |
c05b84d1 | 1105 | } else { |
de9ba98b | 1106 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1107 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1108 | if (ret != 0) |
1109 | dev_warn(w->dapm->dev, | |
30686c35 | 1110 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1111 | w->name, ret); |
1112 | } | |
1113 | ||
a3cc056b | 1114 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1115 | } |
62ea874a MB |
1116 | } |
1117 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1118 | ||
d7e7eb91 OL |
1119 | /* |
1120 | * Handler for clock supply widget. | |
1121 | */ | |
1122 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1123 | struct snd_kcontrol *kcontrol, int event) | |
1124 | { | |
1125 | if (!w->clk) | |
1126 | return -EIO; | |
1127 | ||
eb270e98 MB |
1128 | soc_dapm_async_complete(w->dapm); |
1129 | ||
ec02995a | 1130 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1131 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1132 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1133 | } else { |
37c1b927 | 1134 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1135 | return 0; |
1136 | } | |
ec02995a | 1137 | #endif |
98b3cf12 | 1138 | return 0; |
d7e7eb91 OL |
1139 | } |
1140 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1141 | ||
d805002b MB |
1142 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1143 | { | |
9b8a83b2 MB |
1144 | if (w->power_checked) |
1145 | return w->new_power; | |
1146 | ||
d805002b | 1147 | if (w->force) |
9b8a83b2 | 1148 | w->new_power = 1; |
d805002b | 1149 | else |
9b8a83b2 MB |
1150 | w->new_power = w->power_check(w); |
1151 | ||
1152 | w->power_checked = true; | |
1153 | ||
1154 | return w->new_power; | |
d805002b MB |
1155 | } |
1156 | ||
cd0f2d47 MB |
1157 | /* Generic check to see if a widget should be powered. |
1158 | */ | |
1159 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1160 | { | |
1161 | int in, out; | |
1162 | ||
de02d078 MB |
1163 | DAPM_UPDATE_STAT(w, power_checks); |
1164 | ||
ec2e3031 | 1165 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1166 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1167 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1168 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1169 | return out != 0 && in != 0; |
1170 | } | |
1171 | ||
6ea31b9f MB |
1172 | /* Check to see if an ADC has power */ |
1173 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1174 | { | |
1175 | int in; | |
1176 | ||
de02d078 MB |
1177 | DAPM_UPDATE_STAT(w, power_checks); |
1178 | ||
6ea31b9f | 1179 | if (w->active) { |
ec2e3031 | 1180 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1181 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1182 | return in != 0; |
1183 | } else { | |
1184 | return dapm_generic_check_power(w); | |
1185 | } | |
1186 | } | |
1187 | ||
1188 | /* Check to see if a DAC has power */ | |
1189 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1190 | { | |
1191 | int out; | |
1192 | ||
de02d078 MB |
1193 | DAPM_UPDATE_STAT(w, power_checks); |
1194 | ||
6ea31b9f | 1195 | if (w->active) { |
ec2e3031 | 1196 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1197 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1198 | return out != 0; |
1199 | } else { | |
1200 | return dapm_generic_check_power(w); | |
1201 | } | |
1202 | } | |
1203 | ||
246d0a17 MB |
1204 | /* Check to see if a power supply is needed */ |
1205 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1206 | { | |
1207 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1208 | |
de02d078 MB |
1209 | DAPM_UPDATE_STAT(w, power_checks); |
1210 | ||
246d0a17 MB |
1211 | /* Check if one of our outputs is connected */ |
1212 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1213 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1214 | ||
bf3a9e13 MB |
1215 | if (path->weak) |
1216 | continue; | |
1217 | ||
215edda3 MB |
1218 | if (path->connected && |
1219 | !path->connected(path->source, path->sink)) | |
1220 | continue; | |
1221 | ||
3017358a MB |
1222 | if (!path->sink) |
1223 | continue; | |
1224 | ||
f68d7e16 MB |
1225 | if (dapm_widget_power_check(path->sink)) |
1226 | return 1; | |
246d0a17 MB |
1227 | } |
1228 | ||
f68d7e16 | 1229 | return 0; |
246d0a17 MB |
1230 | } |
1231 | ||
35c64bca MB |
1232 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1233 | { | |
1234 | return 1; | |
1235 | } | |
1236 | ||
38357ab2 MB |
1237 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1238 | struct snd_soc_dapm_widget *b, | |
828a842f | 1239 | bool power_up) |
42aa3418 | 1240 | { |
828a842f MB |
1241 | int *sort; |
1242 | ||
1243 | if (power_up) | |
1244 | sort = dapm_up_seq; | |
1245 | else | |
1246 | sort = dapm_down_seq; | |
1247 | ||
38357ab2 MB |
1248 | if (sort[a->id] != sort[b->id]) |
1249 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1250 | if (a->subseq != b->subseq) { |
1251 | if (power_up) | |
1252 | return a->subseq - b->subseq; | |
1253 | else | |
1254 | return b->subseq - a->subseq; | |
1255 | } | |
b22ead2a MB |
1256 | if (a->reg != b->reg) |
1257 | return a->reg - b->reg; | |
84dab567 MB |
1258 | if (a->dapm != b->dapm) |
1259 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1260 | |
38357ab2 MB |
1261 | return 0; |
1262 | } | |
42aa3418 | 1263 | |
38357ab2 MB |
1264 | /* Insert a widget in order into a DAPM power sequence. */ |
1265 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1266 | struct list_head *list, | |
828a842f | 1267 | bool power_up) |
38357ab2 MB |
1268 | { |
1269 | struct snd_soc_dapm_widget *w; | |
1270 | ||
1271 | list_for_each_entry(w, list, power_list) | |
828a842f | 1272 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1273 | list_add_tail(&new_widget->power_list, &w->power_list); |
1274 | return; | |
1275 | } | |
1276 | ||
1277 | list_add_tail(&new_widget->power_list, list); | |
1278 | } | |
1279 | ||
95dd5cd6 | 1280 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1281 | struct snd_soc_dapm_widget *w, int event) |
1282 | { | |
68f89ad8 MB |
1283 | const char *ev_name; |
1284 | int power, ret; | |
1285 | ||
1286 | switch (event) { | |
1287 | case SND_SOC_DAPM_PRE_PMU: | |
1288 | ev_name = "PRE_PMU"; | |
1289 | power = 1; | |
1290 | break; | |
1291 | case SND_SOC_DAPM_POST_PMU: | |
1292 | ev_name = "POST_PMU"; | |
1293 | power = 1; | |
1294 | break; | |
1295 | case SND_SOC_DAPM_PRE_PMD: | |
1296 | ev_name = "PRE_PMD"; | |
1297 | power = 0; | |
1298 | break; | |
1299 | case SND_SOC_DAPM_POST_PMD: | |
1300 | ev_name = "POST_PMD"; | |
1301 | power = 0; | |
1302 | break; | |
80114129 MB |
1303 | case SND_SOC_DAPM_WILL_PMU: |
1304 | ev_name = "WILL_PMU"; | |
1305 | power = 1; | |
1306 | break; | |
1307 | case SND_SOC_DAPM_WILL_PMD: | |
1308 | ev_name = "WILL_PMD"; | |
1309 | power = 0; | |
1310 | break; | |
68f89ad8 | 1311 | default: |
a6ed0608 | 1312 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1313 | return; |
1314 | } | |
1315 | ||
39eb5fd1 | 1316 | if (w->new_power != power) |
68f89ad8 MB |
1317 | return; |
1318 | ||
1319 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1320 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1321 | w->name, ev_name); |
eb270e98 | 1322 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1323 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1324 | ret = w->event(w, NULL, event); |
84e90930 | 1325 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1326 | if (ret < 0) |
95dd5cd6 | 1327 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1328 | ev_name, w->name, ret); |
1329 | } | |
1330 | } | |
1331 | ||
b22ead2a | 1332 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1333 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1334 | struct list_head *pending) |
163cac06 | 1335 | { |
ce0fc93a | 1336 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1337 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1338 | int reg; |
b22ead2a MB |
1339 | unsigned int value = 0; |
1340 | unsigned int mask = 0; | |
b22ead2a | 1341 | |
ce0fc93a LPC |
1342 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1343 | reg = w->reg; | |
1344 | dapm = w->dapm; | |
b22ead2a MB |
1345 | |
1346 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1347 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1348 | w->power = w->new_power; |
b22ead2a | 1349 | |
de9ba98b LPC |
1350 | mask |= w->mask << w->shift; |
1351 | if (w->power) | |
1352 | value |= w->on_val << w->shift; | |
b22ead2a | 1353 | else |
de9ba98b | 1354 | value |= w->off_val << w->shift; |
b22ead2a | 1355 | |
ce0fc93a | 1356 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1357 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1358 | w->name, reg, value, mask); | |
81628103 | 1359 | |
68f89ad8 | 1360 | /* Check for events */ |
95dd5cd6 LPC |
1361 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1362 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1363 | } |
1364 | ||
1365 | if (reg >= 0) { | |
29376bc7 MB |
1366 | /* Any widget will do, they should all be updating the |
1367 | * same register. | |
1368 | */ | |
29376bc7 | 1369 | |
ce0fc93a | 1370 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1371 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1372 | value, mask, reg, card->pop_time); |
1373 | pop_wait(card->pop_time); | |
ce0fc93a | 1374 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1375 | } |
1376 | ||
81628103 | 1377 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1378 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1379 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1380 | } |
b22ead2a | 1381 | } |
42aa3418 | 1382 | |
b22ead2a MB |
1383 | /* Apply a DAPM power sequence. |
1384 | * | |
1385 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1386 | * order to minimise the number of writes to the device required | |
1387 | * multiple widgets will be updated in a single write where possible. | |
1388 | * Currently anything that requires more than a single write is not | |
1389 | * handled. | |
1390 | */ | |
95dd5cd6 LPC |
1391 | static void dapm_seq_run(struct snd_soc_card *card, |
1392 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1393 | { |
1394 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1395 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1396 | LIST_HEAD(pending); |
1397 | int cur_sort = -1; | |
20e4859d | 1398 | int cur_subseq = -1; |
b22ead2a | 1399 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1400 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1401 | int ret, i; |
828a842f MB |
1402 | int *sort; |
1403 | ||
1404 | if (power_up) | |
1405 | sort = dapm_up_seq; | |
1406 | else | |
1407 | sort = dapm_down_seq; | |
163cac06 | 1408 | |
b22ead2a MB |
1409 | list_for_each_entry_safe(w, n, list, power_list) { |
1410 | ret = 0; | |
1411 | ||
1412 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1413 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1414 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1415 | if (!list_empty(&pending)) |
95dd5cd6 | 1416 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1417 | |
474b62d6 MB |
1418 | if (cur_dapm && cur_dapm->seq_notifier) { |
1419 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1420 | if (sort[i] == cur_sort) | |
1421 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1422 | i, |
1423 | cur_subseq); | |
474b62d6 MB |
1424 | } |
1425 | ||
eb270e98 MB |
1426 | if (cur_dapm && w->dapm != cur_dapm) |
1427 | soc_dapm_async_complete(cur_dapm); | |
1428 | ||
b22ead2a MB |
1429 | INIT_LIST_HEAD(&pending); |
1430 | cur_sort = -1; | |
b0b3e6f8 | 1431 | cur_subseq = INT_MIN; |
b22ead2a | 1432 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1433 | cur_dapm = NULL; |
b22ead2a MB |
1434 | } |
1435 | ||
163cac06 MB |
1436 | switch (w->id) { |
1437 | case snd_soc_dapm_pre: | |
1438 | if (!w->event) | |
b22ead2a MB |
1439 | list_for_each_entry_safe_continue(w, n, list, |
1440 | power_list); | |
163cac06 | 1441 | |
b22ead2a | 1442 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1443 | ret = w->event(w, |
1444 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1445 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1446 | ret = w->event(w, |
1447 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1448 | break; |
1449 | ||
1450 | case snd_soc_dapm_post: | |
1451 | if (!w->event) | |
b22ead2a MB |
1452 | list_for_each_entry_safe_continue(w, n, list, |
1453 | power_list); | |
163cac06 | 1454 | |
b22ead2a | 1455 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1456 | ret = w->event(w, |
1457 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1458 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1459 | ret = w->event(w, |
1460 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1461 | break; |
1462 | ||
b22ead2a | 1463 | default: |
81628103 MB |
1464 | /* Queue it up for application */ |
1465 | cur_sort = sort[w->id]; | |
20e4859d | 1466 | cur_subseq = w->subseq; |
81628103 | 1467 | cur_reg = w->reg; |
7be31be8 | 1468 | cur_dapm = w->dapm; |
81628103 MB |
1469 | list_move(&w->power_list, &pending); |
1470 | break; | |
163cac06 | 1471 | } |
b22ead2a MB |
1472 | |
1473 | if (ret < 0) | |
f7d41ae8 | 1474 | dev_err(w->dapm->dev, |
30a6a1a4 | 1475 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1476 | } |
b22ead2a MB |
1477 | |
1478 | if (!list_empty(&pending)) | |
95dd5cd6 | 1479 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1480 | |
1481 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1482 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1483 | if (sort[i] == cur_sort) | |
1484 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1485 | i, cur_subseq); |
474b62d6 | 1486 | } |
eb270e98 MB |
1487 | |
1488 | list_for_each_entry(d, &card->dapm_list, list) { | |
1489 | soc_dapm_async_complete(d); | |
1490 | } | |
42aa3418 MB |
1491 | } |
1492 | ||
95dd5cd6 | 1493 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1494 | { |
95dd5cd6 | 1495 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1496 | struct snd_soc_dapm_widget_list *wlist; |
1497 | struct snd_soc_dapm_widget *w = NULL; | |
1498 | unsigned int wi; | |
97404f2e MB |
1499 | int ret; |
1500 | ||
57295073 | 1501 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1502 | return; |
1503 | ||
e84357f7 | 1504 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1505 | |
ce6cfaf1 LPC |
1506 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1507 | w = wlist->widgets[wi]; | |
1508 | ||
1509 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1510 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1511 | if (ret != 0) | |
95dd5cd6 | 1512 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1513 | w->name, ret); |
1514 | } | |
97404f2e MB |
1515 | } |
1516 | ||
ce6cfaf1 LPC |
1517 | if (!w) |
1518 | return; | |
1519 | ||
ce0fc93a LPC |
1520 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1521 | update->val); | |
97404f2e | 1522 | if (ret < 0) |
95dd5cd6 | 1523 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1524 | w->name, ret); |
97404f2e | 1525 | |
ce6cfaf1 LPC |
1526 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1527 | w = wlist->widgets[wi]; | |
1528 | ||
1529 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1530 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1531 | if (ret != 0) | |
95dd5cd6 | 1532 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1533 | w->name, ret); |
1534 | } | |
97404f2e MB |
1535 | } |
1536 | } | |
1537 | ||
9d0624a7 MB |
1538 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1539 | * they're changing state. | |
1540 | */ | |
1541 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1542 | { | |
1543 | struct snd_soc_dapm_context *d = data; | |
1544 | int ret; | |
1545 | ||
56fba41f MB |
1546 | /* If we're off and we're not supposed to be go into STANDBY */ |
1547 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1548 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1549 | if (d->dev) |
1550 | pm_runtime_get_sync(d->dev); | |
1551 | ||
9d0624a7 MB |
1552 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1553 | if (ret != 0) | |
1554 | dev_err(d->dev, | |
30a6a1a4 | 1555 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1556 | } |
1557 | ||
ce85a4d7 LPC |
1558 | /* Prepare for a transition to ON or away from ON */ |
1559 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1560 | d->bias_level != SND_SOC_BIAS_ON) || | |
1561 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1562 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1563 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1564 | if (ret != 0) | |
1565 | dev_err(d->dev, | |
30a6a1a4 | 1566 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1567 | } |
1568 | } | |
1569 | ||
1570 | /* Async callback run prior to DAPM sequences - brings to their final | |
1571 | * state. | |
1572 | */ | |
1573 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1574 | { | |
1575 | struct snd_soc_dapm_context *d = data; | |
1576 | int ret; | |
1577 | ||
1578 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1579 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1580 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1581 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1582 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1583 | if (ret != 0) | |
30a6a1a4 | 1584 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1585 | ret); |
1586 | } | |
97404f2e | 1587 | |
9d0624a7 | 1588 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1589 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1590 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1591 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1592 | if (ret != 0) | |
30a6a1a4 LG |
1593 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1594 | ret); | |
f1aac484 MB |
1595 | |
1596 | if (d->dev) | |
fb644e9c | 1597 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1598 | } |
1599 | ||
1600 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1601 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1602 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1603 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1604 | if (ret != 0) | |
30a6a1a4 | 1605 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1606 | ret); |
1607 | } | |
1608 | } | |
97404f2e | 1609 | |
fe4fda5d MB |
1610 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1611 | bool power, bool connect) | |
1612 | { | |
1613 | /* If a connection is being made or broken then that update | |
1614 | * will have marked the peer dirty, otherwise the widgets are | |
1615 | * not connected and this update has no impact. */ | |
1616 | if (!connect) | |
1617 | return; | |
1618 | ||
1619 | /* If the peer is already in the state we're moving to then we | |
1620 | * won't have an impact on it. */ | |
1621 | if (power != peer->power) | |
75c1f891 | 1622 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1623 | } |
1624 | ||
05623c43 MB |
1625 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1626 | struct list_head *up_list, | |
1627 | struct list_head *down_list) | |
1628 | { | |
db432b41 MB |
1629 | struct snd_soc_dapm_path *path; |
1630 | ||
05623c43 MB |
1631 | if (w->power == power) |
1632 | return; | |
1633 | ||
1634 | trace_snd_soc_dapm_widget_power(w, power); | |
1635 | ||
db432b41 | 1636 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1637 | * also. |
db432b41 MB |
1638 | */ |
1639 | list_for_each_entry(path, &w->sources, list_sink) { | |
1640 | if (path->source) { | |
fe4fda5d MB |
1641 | dapm_widget_set_peer_power(path->source, power, |
1642 | path->connect); | |
db432b41 MB |
1643 | } |
1644 | } | |
f3bf3e45 MB |
1645 | switch (w->id) { |
1646 | case snd_soc_dapm_supply: | |
62ea874a | 1647 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1648 | case snd_soc_dapm_clock_supply: |
57295073 | 1649 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1650 | /* Supplies can't affect their outputs, only their inputs */ |
1651 | break; | |
1652 | default: | |
1653 | list_for_each_entry(path, &w->sinks, list_source) { | |
1654 | if (path->sink) { | |
1655 | dapm_widget_set_peer_power(path->sink, power, | |
1656 | path->connect); | |
1657 | } | |
db432b41 | 1658 | } |
f3bf3e45 | 1659 | break; |
db432b41 MB |
1660 | } |
1661 | ||
05623c43 MB |
1662 | if (power) |
1663 | dapm_seq_insert(w, up_list, true); | |
1664 | else | |
1665 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1666 | } |
1667 | ||
7c81beb0 MB |
1668 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1669 | struct list_head *up_list, | |
1670 | struct list_head *down_list) | |
1671 | { | |
7c81beb0 MB |
1672 | int power; |
1673 | ||
1674 | switch (w->id) { | |
1675 | case snd_soc_dapm_pre: | |
1676 | dapm_seq_insert(w, down_list, false); | |
1677 | break; | |
1678 | case snd_soc_dapm_post: | |
1679 | dapm_seq_insert(w, up_list, true); | |
1680 | break; | |
1681 | ||
1682 | default: | |
d805002b | 1683 | power = dapm_widget_power_check(w); |
7c81beb0 | 1684 | |
05623c43 | 1685 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1686 | break; |
1687 | } | |
1688 | } | |
1689 | ||
86dbf2ac LPC |
1690 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1691 | { | |
1692 | if (dapm->idle_bias_off) | |
1693 | return true; | |
1694 | ||
1695 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1696 | case SNDRV_CTL_POWER_D3hot: | |
1697 | case SNDRV_CTL_POWER_D3cold: | |
1698 | return dapm->suspend_bias_off; | |
1699 | default: | |
1700 | break; | |
1701 | } | |
1702 | ||
1703 | return false; | |
1704 | } | |
1705 | ||
2b97eabc RP |
1706 | /* |
1707 | * Scan each dapm widget for complete audio path. | |
1708 | * A complete path is a route that has valid endpoints i.e.:- | |
1709 | * | |
1710 | * o DAC to output pin. | |
1711 | * o Input Pin to ADC. | |
1712 | * o Input pin to Output pin (bypass, sidetone) | |
1713 | * o DAC to ADC (loopback). | |
1714 | */ | |
95dd5cd6 | 1715 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1716 | { |
1717 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1718 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1719 | LIST_HEAD(up_list); |
1720 | LIST_HEAD(down_list); | |
2955b47d | 1721 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1722 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1723 | |
f9fa2b18 MB |
1724 | lockdep_assert_held(&card->dapm_mutex); |
1725 | ||
84e90930 MB |
1726 | trace_snd_soc_dapm_start(card); |
1727 | ||
56fba41f | 1728 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1729 | if (dapm_idle_bias_off(d)) |
497098be MB |
1730 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1731 | else | |
1732 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1733 | } |
7be31be8 | 1734 | |
6c120e19 | 1735 | dapm_reset(card); |
9b8a83b2 | 1736 | |
6d3ddc81 | 1737 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1738 | * lists indicating if they should be powered up or down. We |
1739 | * only check widgets that have been flagged as dirty but note | |
1740 | * that new widgets may be added to the dirty list while we | |
1741 | * iterate. | |
6d3ddc81 | 1742 | */ |
db432b41 | 1743 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1744 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1745 | } |
1746 | ||
f9de6d74 | 1747 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1748 | switch (w->id) { |
1749 | case snd_soc_dapm_pre: | |
1750 | case snd_soc_dapm_post: | |
1751 | /* These widgets always need to be powered */ | |
1752 | break; | |
1753 | default: | |
1754 | list_del_init(&w->dirty); | |
1755 | break; | |
1756 | } | |
db432b41 | 1757 | |
39eb5fd1 | 1758 | if (w->new_power) { |
f9de6d74 MB |
1759 | d = w->dapm; |
1760 | ||
1761 | /* Supplies and micbiases only bring the | |
1762 | * context up to STANDBY as unless something | |
1763 | * else is active and passing audio they | |
afe62367 MB |
1764 | * generally don't require full power. Signal |
1765 | * generators are virtual pins and have no | |
1766 | * power impact themselves. | |
f9de6d74 MB |
1767 | */ |
1768 | switch (w->id) { | |
afe62367 | 1769 | case snd_soc_dapm_siggen: |
da83fea6 | 1770 | case snd_soc_dapm_vmid: |
afe62367 | 1771 | break; |
f9de6d74 | 1772 | case snd_soc_dapm_supply: |
62ea874a | 1773 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1774 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1775 | case snd_soc_dapm_micbias: |
1776 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1777 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1778 | break; | |
1779 | default: | |
1780 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1781 | break; | |
1782 | } | |
1783 | } | |
1784 | ||
1785 | } | |
1786 | ||
85a843c5 MB |
1787 | /* Force all contexts in the card to the same bias state if |
1788 | * they're not ground referenced. | |
1789 | */ | |
56fba41f | 1790 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1791 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1792 | if (d->target_bias_level > bias) |
1793 | bias = d->target_bias_level; | |
52ba67bf | 1794 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1795 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1796 | d->target_bias_level = bias; |
52ba67bf | 1797 | |
de02d078 | 1798 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1799 | |
17282ba4 XX |
1800 | /* Run card bias changes at first */ |
1801 | dapm_pre_sequence_async(&card->dapm, 0); | |
1802 | /* Run other bias changes in parallel */ | |
1803 | list_for_each_entry(d, &card->dapm_list, list) { | |
1804 | if (d != &card->dapm) | |
1805 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1806 | &async_domain); | |
1807 | } | |
9d0624a7 | 1808 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1809 | |
cf1f7c6e | 1810 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1811 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1812 | } |
1813 | ||
cf1f7c6e | 1814 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1815 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1816 | } |
1817 | ||
6d3ddc81 | 1818 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1819 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1820 | |
95dd5cd6 | 1821 | dapm_widget_update(card); |
97404f2e | 1822 | |
6d3ddc81 | 1823 | /* Now power up. */ |
95dd5cd6 | 1824 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1825 | |
9d0624a7 | 1826 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1827 | list_for_each_entry(d, &card->dapm_list, list) { |
1828 | if (d != &card->dapm) | |
1829 | async_schedule_domain(dapm_post_sequence_async, d, | |
1830 | &async_domain); | |
1831 | } | |
9d0624a7 | 1832 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1833 | /* Run card bias changes at last */ |
1834 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1835 | |
8078d87f LG |
1836 | /* do we need to notify any clients that DAPM event is complete */ |
1837 | list_for_each_entry(d, &card->dapm_list, list) { | |
1838 | if (d->stream_event) | |
1839 | d->stream_event(d, event); | |
1840 | } | |
1841 | ||
95dd5cd6 | 1842 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1843 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1844 | pop_wait(card->pop_time); |
cb507e7e | 1845 | |
84e90930 MB |
1846 | trace_snd_soc_dapm_done(card); |
1847 | ||
42aa3418 | 1848 | return 0; |
2b97eabc RP |
1849 | } |
1850 | ||
79fb9387 | 1851 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1852 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1853 | char __user *user_buf, | |
1854 | size_t count, loff_t *ppos) | |
1855 | { | |
1856 | struct snd_soc_dapm_widget *w = file->private_data; | |
1857 | char *buf; | |
1858 | int in, out; | |
1859 | ssize_t ret; | |
1860 | struct snd_soc_dapm_path *p = NULL; | |
1861 | ||
1862 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1863 | if (!buf) | |
1864 | return -ENOMEM; | |
1865 | ||
ec2e3031 | 1866 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1867 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1868 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1869 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1870 | |
f13ebada MB |
1871 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1872 | w->name, w->power ? "On" : "Off", | |
1873 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1874 | |
d033c36a MB |
1875 | if (w->reg >= 0) |
1876 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1877 | " - R%d(0x%x) mask 0x%x", |
1878 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1879 | |
1880 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1881 | ||
3eef08ba MB |
1882 | if (w->sname) |
1883 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1884 | w->sname, | |
1885 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1886 | |
1887 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1888 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1889 | continue; |
1890 | ||
79fb9387 MB |
1891 | if (p->connect) |
1892 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1893 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1894 | p->name ? p->name : "static", |
1895 | p->source->name); | |
1896 | } | |
1897 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1898 | if (p->connected && !p->connected(w, p->sink)) |
1899 | continue; | |
1900 | ||
79fb9387 MB |
1901 | if (p->connect) |
1902 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1903 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1904 | p->name ? p->name : "static", |
1905 | p->sink->name); | |
1906 | } | |
1907 | ||
1908 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1909 | ||
1910 | kfree(buf); | |
1911 | return ret; | |
1912 | } | |
1913 | ||
1914 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1915 | .open = simple_open, |
79fb9387 | 1916 | .read = dapm_widget_power_read_file, |
6038f373 | 1917 | .llseek = default_llseek, |
79fb9387 MB |
1918 | }; |
1919 | ||
ef49e4fa MB |
1920 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1921 | size_t count, loff_t *ppos) | |
1922 | { | |
1923 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1924 | char *level; | |
1925 | ||
1926 | switch (dapm->bias_level) { | |
1927 | case SND_SOC_BIAS_ON: | |
1928 | level = "On\n"; | |
1929 | break; | |
1930 | case SND_SOC_BIAS_PREPARE: | |
1931 | level = "Prepare\n"; | |
1932 | break; | |
1933 | case SND_SOC_BIAS_STANDBY: | |
1934 | level = "Standby\n"; | |
1935 | break; | |
1936 | case SND_SOC_BIAS_OFF: | |
1937 | level = "Off\n"; | |
1938 | break; | |
1939 | default: | |
a6ed0608 | 1940 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1941 | level = "Unknown\n"; |
1942 | break; | |
1943 | } | |
1944 | ||
1945 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1946 | strlen(level)); | |
1947 | } | |
1948 | ||
1949 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1950 | .open = simple_open, |
ef49e4fa MB |
1951 | .read = dapm_bias_read_file, |
1952 | .llseek = default_llseek, | |
1953 | }; | |
1954 | ||
8eecaf62 LPC |
1955 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1956 | struct dentry *parent) | |
79fb9387 | 1957 | { |
79fb9387 MB |
1958 | struct dentry *d; |
1959 | ||
8eecaf62 LPC |
1960 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1961 | ||
1962 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1963 | dev_warn(dapm->dev, |
30a6a1a4 | 1964 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1965 | return; |
8eecaf62 | 1966 | } |
79fb9387 | 1967 | |
ef49e4fa MB |
1968 | d = debugfs_create_file("bias_level", 0444, |
1969 | dapm->debugfs_dapm, dapm, | |
1970 | &dapm_bias_fops); | |
1971 | if (!d) | |
1972 | dev_warn(dapm->dev, | |
1973 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1974 | } |
ef49e4fa | 1975 | |
d5d1e0be LPC |
1976 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1977 | { | |
1978 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1979 | struct dentry *d; | |
79fb9387 | 1980 | |
d5d1e0be LPC |
1981 | if (!dapm->debugfs_dapm || !w->name) |
1982 | return; | |
1983 | ||
1984 | d = debugfs_create_file(w->name, 0444, | |
1985 | dapm->debugfs_dapm, w, | |
1986 | &dapm_widget_power_fops); | |
1987 | if (!d) | |
1988 | dev_warn(w->dapm->dev, | |
1989 | "ASoC: Failed to create %s debugfs file\n", | |
1990 | w->name); | |
79fb9387 | 1991 | } |
d5d1e0be | 1992 | |
6c45e126 LPC |
1993 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1994 | { | |
1995 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1996 | } | |
1997 | ||
79fb9387 | 1998 | #else |
8eecaf62 LPC |
1999 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2000 | struct dentry *parent) | |
79fb9387 MB |
2001 | { |
2002 | } | |
d5d1e0be LPC |
2003 | |
2004 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2005 | { | |
2006 | } | |
2007 | ||
6c45e126 LPC |
2008 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2009 | { | |
2010 | } | |
2011 | ||
79fb9387 MB |
2012 | #endif |
2013 | ||
2b97eabc | 2014 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2015 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2016 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2017 | { |
2018 | struct snd_soc_dapm_path *path; | |
2019 | int found = 0; | |
2020 | ||
f9fa2b18 MB |
2021 | lockdep_assert_held(&card->dapm_mutex); |
2022 | ||
2b97eabc | 2023 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2024 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2025 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2026 | continue; |
2027 | ||
2028 | found = 1; | |
2029 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2030 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2031 | path->connect = 1; /* new connection */ |
75c1f891 | 2032 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2033 | } else { |
2034 | if (path->connect) | |
75c1f891 MB |
2035 | dapm_mark_dirty(path->source, |
2036 | "mux disconnection"); | |
2b97eabc | 2037 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2038 | } |
ce6cfaf1 | 2039 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2040 | } |
2041 | ||
ce6cfaf1 | 2042 | if (found) |
95dd5cd6 | 2043 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2044 | |
618dae11 | 2045 | return found; |
2b97eabc | 2046 | } |
4edbb345 | 2047 | |
ce6cfaf1 | 2048 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2049 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2050 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2051 | { |
ce6cfaf1 | 2052 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2053 | int ret; |
2054 | ||
3cd04343 | 2055 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2056 | card->update = update; |
95dd5cd6 | 2057 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2058 | card->update = NULL; |
4edbb345 | 2059 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2060 | if (ret > 0) |
c3f48ae6 | 2061 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2062 | return ret; |
2063 | } | |
40f02cd9 | 2064 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2065 | |
1b075e3f | 2066 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2067 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2068 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2069 | { |
2070 | struct snd_soc_dapm_path *path; | |
2071 | int found = 0; | |
2072 | ||
f9fa2b18 MB |
2073 | lockdep_assert_held(&card->dapm_mutex); |
2074 | ||
2b97eabc | 2075 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2076 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2077 | found = 1; |
283375ce | 2078 | path->connect = connect; |
75c1f891 | 2079 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2080 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2081 | } |
2082 | ||
ce6cfaf1 | 2083 | if (found) |
95dd5cd6 | 2084 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2085 | |
618dae11 | 2086 | return found; |
2b97eabc | 2087 | } |
4edbb345 | 2088 | |
ce6cfaf1 | 2089 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2090 | struct snd_kcontrol *kcontrol, int connect, |
2091 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2092 | { |
ce6cfaf1 | 2093 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2094 | int ret; |
2095 | ||
3cd04343 | 2096 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2097 | card->update = update; |
95dd5cd6 | 2098 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2099 | card->update = NULL; |
4edbb345 | 2100 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2101 | if (ret > 0) |
c3f48ae6 | 2102 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2103 | return ret; |
2104 | } | |
40f02cd9 | 2105 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2106 | |
44ba2641 | 2107 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2108 | { |
2b97eabc RP |
2109 | struct snd_soc_dapm_widget *w; |
2110 | int count = 0; | |
2111 | char *state = "not set"; | |
2112 | ||
00200107 | 2113 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2114 | if (w->dapm != &codec->dapm) |
2115 | continue; | |
2b97eabc RP |
2116 | |
2117 | /* only display widgets that burnm power */ | |
2118 | switch (w->id) { | |
2119 | case snd_soc_dapm_hp: | |
2120 | case snd_soc_dapm_mic: | |
2121 | case snd_soc_dapm_spk: | |
2122 | case snd_soc_dapm_line: | |
2123 | case snd_soc_dapm_micbias: | |
2124 | case snd_soc_dapm_dac: | |
2125 | case snd_soc_dapm_adc: | |
2126 | case snd_soc_dapm_pga: | |
d88429a6 | 2127 | case snd_soc_dapm_out_drv: |
2b97eabc | 2128 | case snd_soc_dapm_mixer: |
ca9c1aae | 2129 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2130 | case snd_soc_dapm_supply: |
62ea874a | 2131 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2132 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2133 | if (w->name) |
2134 | count += sprintf(buf + count, "%s: %s\n", | |
2135 | w->name, w->power ? "On":"Off"); | |
2136 | break; | |
2137 | default: | |
2138 | break; | |
2139 | } | |
2140 | } | |
2141 | ||
ce6120cc | 2142 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2143 | case SND_SOC_BIAS_ON: |
2144 | state = "On"; | |
2b97eabc | 2145 | break; |
0be9898a MB |
2146 | case SND_SOC_BIAS_PREPARE: |
2147 | state = "Prepare"; | |
2b97eabc | 2148 | break; |
0be9898a MB |
2149 | case SND_SOC_BIAS_STANDBY: |
2150 | state = "Standby"; | |
2b97eabc | 2151 | break; |
0be9898a MB |
2152 | case SND_SOC_BIAS_OFF: |
2153 | state = "Off"; | |
2b97eabc RP |
2154 | break; |
2155 | } | |
2156 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2157 | ||
2158 | return count; | |
2159 | } | |
2160 | ||
44ba2641 BC |
2161 | /* show dapm widget status in sys fs */ |
2162 | static ssize_t dapm_widget_show(struct device *dev, | |
2163 | struct device_attribute *attr, char *buf) | |
2164 | { | |
2165 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2166 | int i, count = 0; | |
2167 | ||
2168 | for (i = 0; i < rtd->num_codecs; i++) { | |
2169 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2170 | count += dapm_widget_show_codec(codec, buf + count); | |
2171 | } | |
2172 | ||
2173 | return count; | |
2174 | } | |
2175 | ||
2b97eabc RP |
2176 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2177 | ||
2178 | int snd_soc_dapm_sys_add(struct device *dev) | |
2179 | { | |
12ef193d | 2180 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2181 | } |
2182 | ||
2183 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2184 | { | |
aef90843 | 2185 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2186 | } |
2187 | ||
8872293f LPC |
2188 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2189 | { | |
2190 | list_del(&path->list_sink); | |
2191 | list_del(&path->list_source); | |
5106b92f | 2192 | list_del(&path->list_kcontrol); |
8872293f | 2193 | list_del(&path->list); |
8872293f LPC |
2194 | kfree(path); |
2195 | } | |
2196 | ||
2b97eabc | 2197 | /* free all dapm widgets and resources */ |
ce6120cc | 2198 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2199 | { |
2200 | struct snd_soc_dapm_widget *w, *next_w; | |
2201 | struct snd_soc_dapm_path *p, *next_p; | |
2202 | ||
97c866de JN |
2203 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2204 | if (w->dapm != dapm) | |
2205 | continue; | |
2b97eabc | 2206 | list_del(&w->list); |
8ddab3f5 JN |
2207 | /* |
2208 | * remove source and sink paths associated to this widget. | |
2209 | * While removing the path, remove reference to it from both | |
2210 | * source and sink widgets so that path is removed only once. | |
2211 | */ | |
8872293f LPC |
2212 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2213 | dapm_free_path(p); | |
2214 | ||
2215 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2216 | dapm_free_path(p); | |
2217 | ||
fad59888 | 2218 | kfree(w->kcontrols); |
ead9b919 | 2219 | kfree(w->name); |
2b97eabc RP |
2220 | kfree(w); |
2221 | } | |
2b97eabc RP |
2222 | } |
2223 | ||
91a5fca4 LPC |
2224 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2225 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2226 | bool search_other_contexts) | |
a5302181 LG |
2227 | { |
2228 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2229 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2230 | |
97c866de | 2231 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2232 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2233 | if (w->dapm == dapm) |
2234 | return w; | |
2235 | else | |
2236 | fallback = w; | |
a5302181 LG |
2237 | } |
2238 | } | |
2239 | ||
91a5fca4 LPC |
2240 | if (search_other_contexts) |
2241 | return fallback; | |
2242 | ||
2243 | return NULL; | |
2244 | } | |
2245 | ||
2246 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2247 | const char *pin, int status) | |
2248 | { | |
2249 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2250 | ||
f9fa2b18 MB |
2251 | dapm_assert_locked(dapm); |
2252 | ||
91a5fca4 | 2253 | if (!w) { |
30a6a1a4 | 2254 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2255 | return -EINVAL; |
0d86733c MB |
2256 | } |
2257 | ||
1a8b2d9d MB |
2258 | if (w->connected != status) |
2259 | dapm_mark_dirty(w, "pin configuration"); | |
2260 | ||
91a5fca4 LPC |
2261 | w->connected = status; |
2262 | if (status == 0) | |
2263 | w->force = 0; | |
2264 | ||
2265 | return 0; | |
a5302181 LG |
2266 | } |
2267 | ||
2b97eabc | 2268 | /** |
3eb29dfb | 2269 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2270 | * @dapm: DAPM context |
2b97eabc RP |
2271 | * |
2272 | * Walks all dapm audio paths and powers widgets according to their | |
2273 | * stream or path usage. | |
2274 | * | |
3eb29dfb CK |
2275 | * Requires external locking. |
2276 | * | |
2b97eabc RP |
2277 | * Returns 0 for success. |
2278 | */ | |
3eb29dfb | 2279 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2280 | { |
4f4c0072 MB |
2281 | /* |
2282 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2283 | * silly DAPM runs during card startup. | |
2284 | */ | |
2285 | if (!dapm->card || !dapm->card->instantiated) | |
2286 | return 0; | |
2287 | ||
3eb29dfb CK |
2288 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2289 | } | |
2290 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2291 | ||
2292 | /** | |
2293 | * snd_soc_dapm_sync - scan and power dapm paths | |
2294 | * @dapm: DAPM context | |
2295 | * | |
2296 | * Walks all dapm audio paths and powers widgets according to their | |
2297 | * stream or path usage. | |
2298 | * | |
2299 | * Returns 0 for success. | |
2300 | */ | |
2301 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2302 | { | |
2303 | int ret; | |
2304 | ||
3cd04343 | 2305 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2306 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2307 | mutex_unlock(&dapm->card->dapm_mutex); |
2308 | return ret; | |
2b97eabc | 2309 | } |
a5302181 | 2310 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2311 | |
2553628e LPC |
2312 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2313 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2314 | const char *control, | |
2315 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2316 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2317 | { |
2318 | struct snd_soc_dapm_path *path; | |
2553628e | 2319 | int ret; |
2b97eabc RP |
2320 | |
2321 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2322 | if (!path) | |
2323 | return -ENOMEM; | |
2324 | ||
2325 | path->source = wsource; | |
2326 | path->sink = wsink; | |
2553628e | 2327 | path->connected = connected; |
2b97eabc | 2328 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2329 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2330 | INIT_LIST_HEAD(&path->list_source); |
2331 | INIT_LIST_HEAD(&path->list_sink); | |
2332 | ||
2333 | /* check for external widgets */ | |
2334 | if (wsink->id == snd_soc_dapm_input) { | |
2335 | if (wsource->id == snd_soc_dapm_micbias || | |
2336 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2337 | wsource->id == snd_soc_dapm_line || |
2338 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2339 | wsink->ext = 1; |
2340 | } | |
2341 | if (wsource->id == snd_soc_dapm_output) { | |
2342 | if (wsink->id == snd_soc_dapm_spk || | |
2343 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2344 | wsink->id == snd_soc_dapm_line || |
2345 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2346 | wsource->ext = 1; |
2347 | } | |
2348 | ||
34742cb0 LPC |
2349 | dapm_mark_dirty(wsource, "Route added"); |
2350 | dapm_mark_dirty(wsink, "Route added"); | |
2351 | ||
2b97eabc RP |
2352 | /* connect static paths */ |
2353 | if (control == NULL) { | |
8ddab3f5 | 2354 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2355 | list_add(&path->list_sink, &wsink->sources); |
2356 | list_add(&path->list_source, &wsource->sinks); | |
2357 | path->connect = 1; | |
2358 | return 0; | |
2359 | } | |
2360 | ||
2361 | /* connect dynamic paths */ | |
dc2bea61 | 2362 | switch (wsink->id) { |
2b97eabc RP |
2363 | case snd_soc_dapm_adc: |
2364 | case snd_soc_dapm_dac: | |
2365 | case snd_soc_dapm_pga: | |
d88429a6 | 2366 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2367 | case snd_soc_dapm_input: |
2368 | case snd_soc_dapm_output: | |
1ab97c8c | 2369 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2370 | case snd_soc_dapm_micbias: |
2371 | case snd_soc_dapm_vmid: | |
2372 | case snd_soc_dapm_pre: | |
2373 | case snd_soc_dapm_post: | |
246d0a17 | 2374 | case snd_soc_dapm_supply: |
62ea874a | 2375 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2376 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2377 | case snd_soc_dapm_aif_in: |
2378 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2379 | case snd_soc_dapm_dai_in: |
2380 | case snd_soc_dapm_dai_out: | |
c74184ed | 2381 | case snd_soc_dapm_dai_link: |
57295073 | 2382 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2383 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2384 | list_add(&path->list_sink, &wsink->sources); |
2385 | list_add(&path->list_source, &wsource->sinks); | |
2386 | path->connect = 1; | |
2387 | return 0; | |
2388 | case snd_soc_dapm_mux: | |
ce6120cc | 2389 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2390 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2391 | if (ret != 0) |
2392 | goto err; | |
2393 | break; | |
2394 | case snd_soc_dapm_switch: | |
2395 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2396 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2397 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2398 | if (ret != 0) |
2399 | goto err; | |
2400 | break; | |
2401 | case snd_soc_dapm_hp: | |
2402 | case snd_soc_dapm_mic: | |
2403 | case snd_soc_dapm_line: | |
2404 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2405 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2406 | list_add(&path->list_sink, &wsink->sources); |
2407 | list_add(&path->list_source, &wsource->sinks); | |
2408 | path->connect = 0; | |
2409 | return 0; | |
2410 | } | |
fabd0384 | 2411 | |
2b97eabc | 2412 | return 0; |
2553628e LPC |
2413 | err: |
2414 | kfree(path); | |
2415 | return ret; | |
2416 | } | |
2b97eabc | 2417 | |
2553628e | 2418 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2419 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2420 | { |
2421 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2422 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2423 | const char *sink; | |
2424 | const char *source; | |
2425 | char prefixed_sink[80]; | |
2426 | char prefixed_source[80]; | |
94f99c87 | 2427 | const char *prefix; |
2553628e LPC |
2428 | int ret; |
2429 | ||
94f99c87 LPC |
2430 | prefix = soc_dapm_prefix(dapm); |
2431 | if (prefix) { | |
2553628e | 2432 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2433 | prefix, route->sink); |
2553628e LPC |
2434 | sink = prefixed_sink; |
2435 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2436 | prefix, route->source); |
2553628e LPC |
2437 | source = prefixed_source; |
2438 | } else { | |
2439 | sink = route->sink; | |
2440 | source = route->source; | |
2441 | } | |
2442 | ||
2443 | /* | |
2444 | * find src and dest widgets over all widgets but favor a widget from | |
2445 | * current DAPM context | |
2446 | */ | |
2447 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2448 | if (!wsink && !(strcmp(w->name, sink))) { | |
2449 | wtsink = w; | |
2450 | if (w->dapm == dapm) | |
2451 | wsink = w; | |
2452 | continue; | |
2453 | } | |
2454 | if (!wsource && !(strcmp(w->name, source))) { | |
2455 | wtsource = w; | |
2456 | if (w->dapm == dapm) | |
2457 | wsource = w; | |
2458 | } | |
2459 | } | |
2460 | /* use widget from another DAPM context if not found from this */ | |
2461 | if (!wsink) | |
2462 | wsink = wtsink; | |
2463 | if (!wsource) | |
2464 | wsource = wtsource; | |
2465 | ||
2466 | if (wsource == NULL) { | |
2467 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2468 | route->source); | |
2469 | return -ENODEV; | |
2470 | } | |
2471 | if (wsink == NULL) { | |
2472 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2473 | route->sink); | |
2474 | return -ENODEV; | |
2475 | } | |
2476 | ||
2477 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2478 | route->connected); | |
2479 | if (ret) | |
2480 | goto err; | |
2481 | ||
2482 | return 0; | |
2b97eabc | 2483 | err: |
30a6a1a4 | 2484 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2485 | source, route->control, sink); |
2b97eabc RP |
2486 | return ret; |
2487 | } | |
105f1c28 | 2488 | |
efcc3c61 MB |
2489 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2490 | const struct snd_soc_dapm_route *route) | |
2491 | { | |
2492 | struct snd_soc_dapm_path *path, *p; | |
2493 | const char *sink; | |
2494 | const char *source; | |
2495 | char prefixed_sink[80]; | |
2496 | char prefixed_source[80]; | |
94f99c87 | 2497 | const char *prefix; |
efcc3c61 MB |
2498 | |
2499 | if (route->control) { | |
2500 | dev_err(dapm->dev, | |
30a6a1a4 | 2501 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2502 | return -EINVAL; |
2503 | } | |
2504 | ||
94f99c87 LPC |
2505 | prefix = soc_dapm_prefix(dapm); |
2506 | if (prefix) { | |
efcc3c61 | 2507 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2508 | prefix, route->sink); |
efcc3c61 MB |
2509 | sink = prefixed_sink; |
2510 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2511 | prefix, route->source); |
efcc3c61 MB |
2512 | source = prefixed_source; |
2513 | } else { | |
2514 | sink = route->sink; | |
2515 | source = route->source; | |
2516 | } | |
2517 | ||
2518 | path = NULL; | |
2519 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2520 | if (strcmp(p->source->name, source) != 0) | |
2521 | continue; | |
2522 | if (strcmp(p->sink->name, sink) != 0) | |
2523 | continue; | |
2524 | path = p; | |
2525 | break; | |
2526 | } | |
2527 | ||
2528 | if (path) { | |
2529 | dapm_mark_dirty(path->source, "Route removed"); | |
2530 | dapm_mark_dirty(path->sink, "Route removed"); | |
2531 | ||
8872293f | 2532 | dapm_free_path(path); |
efcc3c61 | 2533 | } else { |
30a6a1a4 | 2534 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2535 | source, sink); |
2536 | } | |
2537 | ||
2538 | return 0; | |
2539 | } | |
2540 | ||
105f1c28 MB |
2541 | /** |
2542 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2543 | * @dapm: DAPM context |
105f1c28 MB |
2544 | * @route: audio routes |
2545 | * @num: number of routes | |
2546 | * | |
2547 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2548 | * the widget receiving the audio signal, whilst the source is the sender | |
2549 | * of the audio signal. | |
2550 | * | |
2551 | * Returns 0 for success else error. On error all resources can be freed | |
2552 | * with a call to snd_soc_card_free(). | |
2553 | */ | |
ce6120cc | 2554 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2555 | const struct snd_soc_dapm_route *route, int num) |
2556 | { | |
62d4a4b9 | 2557 | int i, r, ret = 0; |
105f1c28 | 2558 | |
a73fb2df | 2559 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2560 | for (i = 0; i < num; i++) { |
a4e9154c | 2561 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2562 | if (r < 0) { |
30a6a1a4 LG |
2563 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2564 | route->source, | |
2565 | route->control ? route->control : "direct", | |
2566 | route->sink); | |
62d4a4b9 | 2567 | ret = r; |
105f1c28 MB |
2568 | } |
2569 | route++; | |
2570 | } | |
a73fb2df | 2571 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2572 | |
60884c27 | 2573 | return ret; |
105f1c28 MB |
2574 | } |
2575 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2576 | ||
efcc3c61 MB |
2577 | /** |
2578 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2579 | * @dapm: DAPM context | |
2580 | * @route: audio routes | |
2581 | * @num: number of routes | |
2582 | * | |
2583 | * Removes routes from the DAPM context. | |
2584 | */ | |
2585 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2586 | const struct snd_soc_dapm_route *route, int num) | |
2587 | { | |
2588 | int i, ret = 0; | |
2589 | ||
2590 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2591 | for (i = 0; i < num; i++) { | |
2592 | snd_soc_dapm_del_route(dapm, route); | |
2593 | route++; | |
2594 | } | |
2595 | mutex_unlock(&dapm->card->dapm_mutex); | |
2596 | ||
2597 | return ret; | |
2598 | } | |
2599 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2600 | ||
bf3a9e13 MB |
2601 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2602 | const struct snd_soc_dapm_route *route) | |
2603 | { | |
2604 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2605 | route->source, | |
2606 | true); | |
2607 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2608 | route->sink, | |
2609 | true); | |
2610 | struct snd_soc_dapm_path *path; | |
2611 | int count = 0; | |
2612 | ||
2613 | if (!source) { | |
30a6a1a4 | 2614 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2615 | route->source); |
2616 | return -ENODEV; | |
2617 | } | |
2618 | ||
2619 | if (!sink) { | |
30a6a1a4 | 2620 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2621 | route->sink); |
2622 | return -ENODEV; | |
2623 | } | |
2624 | ||
2625 | if (route->control || route->connected) | |
30a6a1a4 | 2626 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2627 | route->source, route->sink); |
2628 | ||
2629 | list_for_each_entry(path, &source->sinks, list_source) { | |
2630 | if (path->sink == sink) { | |
2631 | path->weak = 1; | |
2632 | count++; | |
2633 | } | |
2634 | } | |
2635 | ||
2636 | if (count == 0) | |
30a6a1a4 | 2637 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2638 | route->source, route->sink); |
2639 | if (count > 1) | |
30a6a1a4 | 2640 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2641 | count, route->source, route->sink); |
2642 | ||
2643 | return 0; | |
2644 | } | |
2645 | ||
2646 | /** | |
2647 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2648 | * @dapm: DAPM context | |
2649 | * @route: audio routes | |
2650 | * @num: number of routes | |
2651 | * | |
2652 | * Mark existing routes matching those specified in the passed array | |
2653 | * as being weak, meaning that they are ignored for the purpose of | |
2654 | * power decisions. The main intended use case is for sidetone paths | |
2655 | * which couple audio between other independent paths if they are both | |
2656 | * active in order to make the combination work better at the user | |
2657 | * level but which aren't intended to be "used". | |
2658 | * | |
2659 | * Note that CODEC drivers should not use this as sidetone type paths | |
2660 | * can frequently also be used as bypass paths. | |
2661 | */ | |
2662 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2663 | const struct snd_soc_dapm_route *route, int num) | |
2664 | { | |
2665 | int i, err; | |
2666 | int ret = 0; | |
2667 | ||
a73fb2df | 2668 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2669 | for (i = 0; i < num; i++) { |
2670 | err = snd_soc_dapm_weak_route(dapm, route); | |
2671 | if (err) | |
2672 | ret = err; | |
2673 | route++; | |
2674 | } | |
a73fb2df | 2675 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2676 | |
2677 | return ret; | |
2678 | } | |
2679 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2680 | ||
2b97eabc RP |
2681 | /** |
2682 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2683 | * @dapm: DAPM context |
2b97eabc RP |
2684 | * |
2685 | * Checks the codec for any new dapm widgets and creates them if found. | |
2686 | * | |
2687 | * Returns 0 for success. | |
2688 | */ | |
824ef826 | 2689 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2690 | { |
2691 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2692 | unsigned int val; |
2b97eabc | 2693 | |
95dd5cd6 | 2694 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2695 | |
95dd5cd6 | 2696 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2697 | { |
2698 | if (w->new) | |
2699 | continue; | |
2700 | ||
fad59888 SW |
2701 | if (w->num_kcontrols) { |
2702 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2703 | sizeof(struct snd_kcontrol *), | |
2704 | GFP_KERNEL); | |
a73fb2df | 2705 | if (!w->kcontrols) { |
95dd5cd6 | 2706 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2707 | return -ENOMEM; |
a73fb2df | 2708 | } |
fad59888 SW |
2709 | } |
2710 | ||
2b97eabc RP |
2711 | switch(w->id) { |
2712 | case snd_soc_dapm_switch: | |
2713 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2714 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2715 | dapm_new_mixer(w); |
2b97eabc RP |
2716 | break; |
2717 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2718 | dapm_new_mux(w); |
2b97eabc | 2719 | break; |
2b97eabc | 2720 | case snd_soc_dapm_pga: |
d88429a6 | 2721 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2722 | dapm_new_pga(w); |
2b97eabc | 2723 | break; |
7ca3a18b | 2724 | default: |
2b97eabc RP |
2725 | break; |
2726 | } | |
b66a70d5 MB |
2727 | |
2728 | /* Read the initial power state from the device */ | |
2729 | if (w->reg >= 0) { | |
ce0fc93a | 2730 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2731 | val = val >> w->shift; |
de9ba98b LPC |
2732 | val &= w->mask; |
2733 | if (val == w->on_val) | |
b66a70d5 MB |
2734 | w->power = 1; |
2735 | } | |
2736 | ||
2b97eabc | 2737 | w->new = 1; |
d5d1e0be | 2738 | |
7508b12a | 2739 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2740 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2741 | } |
2742 | ||
95dd5cd6 LPC |
2743 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2744 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2745 | return 0; |
2746 | } | |
2747 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2748 | ||
2749 | /** | |
2750 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2751 | * @kcontrol: mixer control | |
ac11a2b3 | 2752 | * @ucontrol: control element information |
2b97eabc RP |
2753 | * |
2754 | * Callback to get the value of a dapm mixer control. | |
2755 | * | |
2756 | * Returns 0 for success. | |
2757 | */ | |
2758 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2759 | struct snd_ctl_elem_value *ucontrol) | |
2760 | { | |
ce0fc93a LPC |
2761 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2762 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2763 | struct soc_mixer_control *mc = |
2764 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2765 | int reg = mc->reg; |
815ecf8d | 2766 | unsigned int shift = mc->shift; |
4eaa9819 | 2767 | int max = mc->max; |
815ecf8d | 2768 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2769 | unsigned int invert = mc->invert; |
57295073 | 2770 | unsigned int val; |
ce0fc93a | 2771 | int ret = 0; |
da602ab8 BT |
2772 | |
2773 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2774 | dev_warn(dapm->dev, |
30a6a1a4 | 2775 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2776 | kcontrol->id.name); |
2b97eabc | 2777 | |
57295073 | 2778 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2779 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2780 | ret = soc_dapm_read(dapm, reg, &val); | |
2781 | val = (val >> shift) & mask; | |
2782 | } else { | |
57295073 | 2783 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2784 | } |
57295073 LPC |
2785 | mutex_unlock(&card->dapm_mutex); |
2786 | ||
da602ab8 | 2787 | if (invert) |
57295073 LPC |
2788 | ucontrol->value.integer.value[0] = max - val; |
2789 | else | |
2790 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2791 | |
ce0fc93a | 2792 | return ret; |
2b97eabc RP |
2793 | } |
2794 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2795 | ||
2796 | /** | |
2797 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2798 | * @kcontrol: mixer control | |
ac11a2b3 | 2799 | * @ucontrol: control element information |
2b97eabc RP |
2800 | * |
2801 | * Callback to set the value of a dapm mixer control. | |
2802 | * | |
2803 | * Returns 0 for success. | |
2804 | */ | |
2805 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2806 | struct snd_ctl_elem_value *ucontrol) | |
2807 | { | |
ce0fc93a LPC |
2808 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2809 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2810 | struct soc_mixer_control *mc = |
2811 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2812 | int reg = mc->reg; |
815ecf8d | 2813 | unsigned int shift = mc->shift; |
4eaa9819 | 2814 | int max = mc->max; |
815ecf8d JS |
2815 | unsigned int mask = (1 << fls(max)) - 1; |
2816 | unsigned int invert = mc->invert; | |
e9cf7049 | 2817 | unsigned int val; |
18626c7e | 2818 | int connect, change, reg_change = 0; |
97404f2e | 2819 | struct snd_soc_dapm_update update; |
52765976 | 2820 | int ret = 0; |
2b97eabc | 2821 | |
da602ab8 | 2822 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 2823 | dev_warn(dapm->dev, |
30a6a1a4 | 2824 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2825 | kcontrol->id.name); |
2826 | ||
2b97eabc | 2827 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2828 | connect = !!val; |
2b97eabc RP |
2829 | |
2830 | if (invert) | |
a7a4ac86 | 2831 | val = max - val; |
2b97eabc | 2832 | |
3cd04343 | 2833 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2834 | |
249ce138 | 2835 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2836 | |
18626c7e JN |
2837 | if (reg != SND_SOC_NOPM) { |
2838 | mask = mask << shift; | |
2839 | val = val << shift; | |
2840 | ||
ce0fc93a | 2841 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
2842 | } |
2843 | ||
2844 | if (change || reg_change) { | |
2845 | if (reg_change) { | |
2846 | update.kcontrol = kcontrol; | |
2847 | update.reg = reg; | |
2848 | update.mask = mask; | |
2849 | update.val = val; | |
2850 | card->update = &update; | |
249ce138 | 2851 | } |
18626c7e | 2852 | change |= reg_change; |
97404f2e | 2853 | |
52765976 | 2854 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2855 | |
564c6504 | 2856 | card->update = NULL; |
283375ce MB |
2857 | } |
2858 | ||
a73fb2df | 2859 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2860 | |
2861 | if (ret > 0) | |
2862 | soc_dpcm_runtime_update(card); | |
2863 | ||
56a67834 | 2864 | return change; |
2b97eabc RP |
2865 | } |
2866 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2867 | ||
2868 | /** | |
2869 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2870 | * @kcontrol: mixer control | |
ac11a2b3 | 2871 | * @ucontrol: control element information |
2b97eabc RP |
2872 | * |
2873 | * Callback to get the value of a dapm enumerated double mixer control. | |
2874 | * | |
2875 | * Returns 0 for success. | |
2876 | */ | |
2877 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2878 | struct snd_ctl_elem_value *ucontrol) | |
2879 | { | |
ce0fc93a | 2880 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2b97eabc | 2881 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2882 | unsigned int reg_val, val; |
52765976 | 2883 | |
69128316 GU |
2884 | if (e->reg != SND_SOC_NOPM) { |
2885 | int ret = soc_dapm_read(dapm, e->reg, ®_val); | |
2886 | if (ret) | |
2887 | return ret; | |
2888 | } else { | |
236aaa68 | 2889 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 2890 | } |
2e72f8e3 | 2891 | |
2e72f8e3 | 2892 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2893 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2894 | if (e->shift_l != e->shift_r) { |
2895 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2896 | val = snd_soc_enum_val_to_item(e, val); |
2897 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2898 | } |
2899 | ||
69128316 | 2900 | return 0; |
2e72f8e3 | 2901 | } |
2b97eabc | 2902 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2903 | |
2904 | /** | |
2b97eabc | 2905 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2906 | * @kcontrol: mixer control |
2907 | * @ucontrol: control element information | |
2908 | * | |
2b97eabc | 2909 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2910 | * |
2911 | * Returns 0 for success. | |
2912 | */ | |
2b97eabc | 2913 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2914 | struct snd_ctl_elem_value *ucontrol) |
2915 | { | |
ce0fc93a LPC |
2916 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2917 | struct snd_soc_card *card = dapm->card; | |
74155556 | 2918 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2919 | unsigned int *item = ucontrol->value.enumerated.item; |
2920 | unsigned int val, change; | |
46f5822f | 2921 | unsigned int mask; |
97404f2e | 2922 | struct snd_soc_dapm_update update; |
52765976 | 2923 | int ret = 0; |
2e72f8e3 | 2924 | |
3727b496 | 2925 | if (item[0] >= e->items) |
2e72f8e3 | 2926 | return -EINVAL; |
3727b496 LPC |
2927 | |
2928 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2929 | mask = e->mask << e->shift_l; |
2930 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2931 | if (item[1] > e->items) |
2e72f8e3 | 2932 | return -EINVAL; |
3727b496 | 2933 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2934 | mask |= e->mask << e->shift_r; |
2935 | } | |
2936 | ||
3cd04343 | 2937 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2938 | |
236aaa68 | 2939 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2940 | change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 LPC |
2941 | else |
2942 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2943 | ||
fafd2176 | 2944 | if (change) { |
236aaa68 LPC |
2945 | if (e->reg != SND_SOC_NOPM) { |
2946 | update.kcontrol = kcontrol; | |
2947 | update.reg = e->reg; | |
2948 | update.mask = mask; | |
2949 | update.val = val; | |
2950 | card->update = &update; | |
2951 | } | |
1642e3d4 | 2952 | |
3727b496 | 2953 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 2954 | |
564c6504 | 2955 | card->update = NULL; |
fafd2176 | 2956 | } |
2e72f8e3 | 2957 | |
a73fb2df | 2958 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2959 | |
2960 | if (ret > 0) | |
2961 | soc_dpcm_runtime_update(card); | |
2962 | ||
97404f2e | 2963 | return change; |
2e72f8e3 | 2964 | } |
2b97eabc | 2965 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 2966 | |
8b37dbd2 MB |
2967 | /** |
2968 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2969 | * | |
2970 | * @kcontrol: mixer control | |
2971 | * @uinfo: control element information | |
2972 | * | |
2973 | * Callback to provide information about a pin switch control. | |
2974 | */ | |
2975 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2976 | struct snd_ctl_elem_info *uinfo) | |
2977 | { | |
2978 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2979 | uinfo->count = 1; | |
2980 | uinfo->value.integer.min = 0; | |
2981 | uinfo->value.integer.max = 1; | |
2982 | ||
2983 | return 0; | |
2984 | } | |
2985 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2986 | ||
2987 | /** | |
2988 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2989 | * | |
2990 | * @kcontrol: mixer control | |
2991 | * @ucontrol: Value | |
2992 | */ | |
2993 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2994 | struct snd_ctl_elem_value *ucontrol) | |
2995 | { | |
48a8c394 | 2996 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2997 | const char *pin = (const char *)kcontrol->private_value; |
2998 | ||
3cd04343 | 2999 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3000 | |
3001 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3002 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3003 | |
a73fb2df | 3004 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3005 | |
3006 | return 0; | |
3007 | } | |
3008 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3009 | ||
3010 | /** | |
3011 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3012 | * | |
3013 | * @kcontrol: mixer control | |
3014 | * @ucontrol: Value | |
3015 | */ | |
3016 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3017 | struct snd_ctl_elem_value *ucontrol) | |
3018 | { | |
48a8c394 | 3019 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3020 | const char *pin = (const char *)kcontrol->private_value; |
3021 | ||
8b37dbd2 | 3022 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3023 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3024 | else |
48a8c394 | 3025 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3026 | |
a73fb2df | 3027 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3028 | return 0; |
3029 | } | |
3030 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3031 | ||
5ba06fc9 MB |
3032 | static struct snd_soc_dapm_widget * |
3033 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3034 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3035 | { |
3036 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3037 | const char *prefix; |
62ea874a | 3038 | int ret; |
2b97eabc RP |
3039 | |
3040 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3041 | return NULL; |
2b97eabc | 3042 | |
62ea874a MB |
3043 | switch (w->id) { |
3044 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3045 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3046 | if (IS_ERR(w->regulator)) { | |
3047 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3048 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3049 | w->name, ret); |
5ba06fc9 | 3050 | return NULL; |
62ea874a | 3051 | } |
8784c77a | 3052 | |
de9ba98b | 3053 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3054 | ret = regulator_allow_bypass(w->regulator, true); |
3055 | if (ret != 0) | |
3056 | dev_warn(w->dapm->dev, | |
30686c35 | 3057 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3058 | w->name, ret); |
3059 | } | |
62ea874a | 3060 | break; |
d7e7eb91 | 3061 | case snd_soc_dapm_clock_supply: |
165961ef | 3062 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3063 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3064 | if (IS_ERR(w->clk)) { |
3065 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3066 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3067 | w->name, ret); |
3068 | return NULL; | |
3069 | } | |
ec02995a MB |
3070 | #else |
3071 | return NULL; | |
3072 | #endif | |
d7e7eb91 | 3073 | break; |
62ea874a MB |
3074 | default: |
3075 | break; | |
3076 | } | |
2b97eabc | 3077 | |
94f99c87 LPC |
3078 | prefix = soc_dapm_prefix(dapm); |
3079 | if (prefix) | |
3080 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); | |
2b581074 LPC |
3081 | else |
3082 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3083 | ||
ead9b919 JN |
3084 | if (w->name == NULL) { |
3085 | kfree(w); | |
5ba06fc9 | 3086 | return NULL; |
ead9b919 | 3087 | } |
ead9b919 | 3088 | |
7ca3a18b MB |
3089 | switch (w->id) { |
3090 | case snd_soc_dapm_switch: | |
3091 | case snd_soc_dapm_mixer: | |
3092 | case snd_soc_dapm_mixer_named_ctl: | |
3093 | w->power_check = dapm_generic_check_power; | |
3094 | break; | |
3095 | case snd_soc_dapm_mux: | |
7ca3a18b MB |
3096 | w->power_check = dapm_generic_check_power; |
3097 | break; | |
4616274d | 3098 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3099 | w->power_check = dapm_adc_check_power; |
3100 | break; | |
4616274d | 3101 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3102 | w->power_check = dapm_dac_check_power; |
3103 | break; | |
63c69a6e MB |
3104 | case snd_soc_dapm_adc: |
3105 | case snd_soc_dapm_aif_out: | |
3106 | case snd_soc_dapm_dac: | |
3107 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3108 | case snd_soc_dapm_pga: |
3109 | case snd_soc_dapm_out_drv: | |
3110 | case snd_soc_dapm_input: | |
3111 | case snd_soc_dapm_output: | |
3112 | case snd_soc_dapm_micbias: | |
3113 | case snd_soc_dapm_spk: | |
3114 | case snd_soc_dapm_hp: | |
3115 | case snd_soc_dapm_mic: | |
3116 | case snd_soc_dapm_line: | |
c74184ed | 3117 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3118 | w->power_check = dapm_generic_check_power; |
3119 | break; | |
3120 | case snd_soc_dapm_supply: | |
62ea874a | 3121 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3122 | case snd_soc_dapm_clock_supply: |
57295073 | 3123 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3124 | w->power_check = dapm_supply_check_power; |
3125 | break; | |
3126 | default: | |
3127 | w->power_check = dapm_always_on_check_power; | |
3128 | break; | |
3129 | } | |
3130 | ||
ce6120cc | 3131 | w->dapm = dapm; |
b2d9de54 JN |
3132 | if (dapm->component) |
3133 | w->codec = dapm->component->codec; | |
2b97eabc RP |
3134 | INIT_LIST_HEAD(&w->sources); |
3135 | INIT_LIST_HEAD(&w->sinks); | |
3136 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3137 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3138 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3139 | |
3140 | /* machine layer set ups unconnected pins and insertions */ | |
3141 | w->connected = 1; | |
5ba06fc9 | 3142 | return w; |
2b97eabc | 3143 | } |
2b97eabc | 3144 | |
4ba1327a MB |
3145 | /** |
3146 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3147 | * @dapm: DAPM context |
4ba1327a MB |
3148 | * @widget: widget array |
3149 | * @num: number of widgets | |
3150 | * | |
3151 | * Creates new DAPM controls based upon the templates. | |
3152 | * | |
3153 | * Returns 0 for success else error. | |
3154 | */ | |
ce6120cc | 3155 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3156 | const struct snd_soc_dapm_widget *widget, |
3157 | int num) | |
3158 | { | |
5ba06fc9 MB |
3159 | struct snd_soc_dapm_widget *w; |
3160 | int i; | |
60884c27 | 3161 | int ret = 0; |
4ba1327a | 3162 | |
a73fb2df | 3163 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3164 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3165 | w = snd_soc_dapm_new_control(dapm, widget); |
3166 | if (!w) { | |
f7d41ae8 | 3167 | dev_err(dapm->dev, |
5ba06fc9 MB |
3168 | "ASoC: Failed to create DAPM control %s\n", |
3169 | widget->name); | |
60884c27 DC |
3170 | ret = -ENOMEM; |
3171 | break; | |
b8b33cb5 | 3172 | } |
4ba1327a MB |
3173 | widget++; |
3174 | } | |
a73fb2df | 3175 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3176 | return ret; |
4ba1327a MB |
3177 | } |
3178 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3179 | ||
c74184ed MB |
3180 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3181 | struct snd_kcontrol *kcontrol, int event) | |
3182 | { | |
3183 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3184 | struct snd_soc_dai *source, *sink; | |
3185 | const struct snd_soc_pcm_stream *config = w->params; | |
3186 | struct snd_pcm_substream substream; | |
9747cec2 | 3187 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3188 | u64 fmt; |
3189 | int ret; | |
3190 | ||
bf4edea8 TI |
3191 | if (WARN_ON(!config) || |
3192 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3193 | return -EINVAL; | |
c74184ed MB |
3194 | |
3195 | /* We only support a single source and sink, pick the first */ | |
3196 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3197 | list_sink); | |
3198 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3199 | list_source); | |
3200 | ||
bf4edea8 TI |
3201 | if (WARN_ON(!source_p || !sink_p) || |
3202 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3203 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3204 | return -EINVAL; | |
c74184ed MB |
3205 | |
3206 | source = source_p->source->priv; | |
3207 | sink = sink_p->sink->priv; | |
3208 | ||
3209 | /* Be a little careful as we don't want to overflow the mask array */ | |
3210 | if (config->formats) { | |
3211 | fmt = ffs(config->formats) - 1; | |
3212 | } else { | |
30a6a1a4 | 3213 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3214 | config->formats); |
3215 | fmt = 0; | |
3216 | } | |
3217 | ||
3218 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3219 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3220 | if (!params) { | |
3221 | ret = -ENOMEM; | |
3222 | goto out; | |
3223 | } | |
3224 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3225 | |
9747cec2 | 3226 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3227 | config->rate_min; |
9747cec2 | 3228 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3229 | config->rate_max; |
3230 | ||
9747cec2 | 3231 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3232 | = config->channels_min; |
9747cec2 | 3233 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3234 | = config->channels_max; |
3235 | ||
3236 | memset(&substream, 0, sizeof(substream)); | |
3237 | ||
3238 | switch (event) { | |
3239 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3240 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3241 | ret = soc_dai_hw_params(&substream, params, source); | |
3242 | if (ret < 0) | |
3243 | goto out; | |
c74184ed | 3244 | |
93e6958a BC |
3245 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3246 | ret = soc_dai_hw_params(&substream, params, sink); | |
3247 | if (ret < 0) | |
3248 | goto out; | |
c74184ed MB |
3249 | break; |
3250 | ||
3251 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3252 | ret = snd_soc_dai_digital_mute(sink, 0, |
3253 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3254 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3255 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3256 | ret = 0; |
c74184ed MB |
3257 | break; |
3258 | ||
3259 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3260 | ret = snd_soc_dai_digital_mute(sink, 1, |
3261 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3262 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3263 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3264 | ret = 0; |
c74184ed MB |
3265 | break; |
3266 | ||
3267 | default: | |
a6ed0608 | 3268 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3269 | return -EINVAL; |
3270 | } | |
3271 | ||
9747cec2 MB |
3272 | out: |
3273 | kfree(params); | |
3274 | return ret; | |
c74184ed MB |
3275 | } |
3276 | ||
3277 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3278 | const struct snd_soc_pcm_stream *params, | |
3279 | struct snd_soc_dapm_widget *source, | |
3280 | struct snd_soc_dapm_widget *sink) | |
3281 | { | |
c74184ed MB |
3282 | struct snd_soc_dapm_widget template; |
3283 | struct snd_soc_dapm_widget *w; | |
3284 | size_t len; | |
3285 | char *link_name; | |
fe83897f | 3286 | int ret; |
c74184ed MB |
3287 | |
3288 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3289 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3290 | if (!link_name) | |
3291 | return -ENOMEM; | |
3292 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3293 | ||
3294 | memset(&template, 0, sizeof(template)); | |
3295 | template.reg = SND_SOC_NOPM; | |
3296 | template.id = snd_soc_dapm_dai_link; | |
3297 | template.name = link_name; | |
3298 | template.event = snd_soc_dai_link_event; | |
3299 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3300 | SND_SOC_DAPM_PRE_PMD; | |
3301 | ||
30a6a1a4 | 3302 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3303 | |
3304 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3305 | if (!w) { | |
30a6a1a4 | 3306 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3307 | link_name); |
3308 | return -ENOMEM; | |
3309 | } | |
3310 | ||
3311 | w->params = params; | |
3312 | ||
fe83897f LPC |
3313 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3314 | if (ret) | |
3315 | return ret; | |
3316 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); | |
c74184ed MB |
3317 | } |
3318 | ||
888df395 MB |
3319 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3320 | struct snd_soc_dai *dai) | |
2b97eabc | 3321 | { |
888df395 | 3322 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3323 | struct snd_soc_dapm_widget *w; |
3324 | ||
888df395 MB |
3325 | WARN_ON(dapm->dev != dai->dev); |
3326 | ||
3327 | memset(&template, 0, sizeof(template)); | |
3328 | template.reg = SND_SOC_NOPM; | |
3329 | ||
3330 | if (dai->driver->playback.stream_name) { | |
4616274d | 3331 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3332 | template.name = dai->driver->playback.stream_name; |
3333 | template.sname = dai->driver->playback.stream_name; | |
3334 | ||
30a6a1a4 | 3335 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3336 | template.name); |
3337 | ||
3338 | w = snd_soc_dapm_new_control(dapm, &template); | |
3339 | if (!w) { | |
30a6a1a4 | 3340 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3341 | dai->driver->playback.stream_name); |
298402a3 | 3342 | return -ENOMEM; |
888df395 MB |
3343 | } |
3344 | ||
3345 | w->priv = dai; | |
3346 | dai->playback_widget = w; | |
3347 | } | |
3348 | ||
3349 | if (dai->driver->capture.stream_name) { | |
4616274d | 3350 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3351 | template.name = dai->driver->capture.stream_name; |
3352 | template.sname = dai->driver->capture.stream_name; | |
3353 | ||
30a6a1a4 | 3354 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3355 | template.name); |
3356 | ||
3357 | w = snd_soc_dapm_new_control(dapm, &template); | |
3358 | if (!w) { | |
30a6a1a4 | 3359 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3360 | dai->driver->capture.stream_name); |
298402a3 | 3361 | return -ENOMEM; |
888df395 MB |
3362 | } |
3363 | ||
3364 | w->priv = dai; | |
3365 | dai->capture_widget = w; | |
3366 | } | |
3367 | ||
3368 | return 0; | |
3369 | } | |
3370 | ||
3371 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3372 | { | |
3373 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3374 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3375 | struct snd_soc_dai *dai; |
888df395 MB |
3376 | |
3377 | /* For each DAI widget... */ | |
3378 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3379 | switch (dai_w->id) { |
3380 | case snd_soc_dapm_dai_in: | |
3381 | case snd_soc_dapm_dai_out: | |
3382 | break; | |
3383 | default: | |
2b97eabc | 3384 | continue; |
4616274d | 3385 | } |
888df395 MB |
3386 | |
3387 | dai = dai_w->priv; | |
3388 | ||
3389 | /* ...find all widgets with the same stream and link them */ | |
3390 | list_for_each_entry(w, &card->widgets, list) { | |
3391 | if (w->dapm != dai_w->dapm) | |
3392 | continue; | |
3393 | ||
4616274d MB |
3394 | switch (w->id) { |
3395 | case snd_soc_dapm_dai_in: | |
3396 | case snd_soc_dapm_dai_out: | |
888df395 | 3397 | continue; |
4616274d MB |
3398 | default: |
3399 | break; | |
3400 | } | |
888df395 | 3401 | |
19c2c5f5 | 3402 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3403 | continue; |
3404 | ||
0f9bd7b1 LPC |
3405 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3406 | src = dai_w; | |
3407 | sink = w; | |
3408 | } else { | |
3409 | src = w; | |
3410 | sink = dai_w; | |
2b97eabc | 3411 | } |
0f9bd7b1 LPC |
3412 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3413 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3414 | } |
3415 | } | |
2b97eabc | 3416 | |
888df395 MB |
3417 | return 0; |
3418 | } | |
64a648c2 | 3419 | |
44ba2641 BC |
3420 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3421 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3422 | { |
44ba2641 | 3423 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3424 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3425 | int i; |
3426 | ||
44ba2641 BC |
3427 | for (i = 0; i < rtd->num_codecs; i++) { |
3428 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3429 | |
3430 | /* there is no point in connecting BE DAI links with dummies */ | |
3431 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3432 | snd_soc_dai_is_dummy(cpu_dai)) | |
3433 | continue; | |
3434 | ||
3435 | /* connect BE DAI playback if widgets are valid */ | |
3436 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3437 | source = cpu_dai->playback_widget; |
3438 | sink = codec_dai->playback_widget; | |
b893ea5f | 3439 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3440 | cpu_dai->component->name, source->name, |
3441 | codec_dai->component->name, sink->name); | |
b893ea5f | 3442 | |
9887c20b LPC |
3443 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3444 | NULL, NULL); | |
b893ea5f LG |
3445 | } |
3446 | ||
3447 | /* connect BE DAI capture if widgets are valid */ | |
3448 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3449 | source = codec_dai->capture_widget; |
3450 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3451 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3452 | codec_dai->component->name, source->name, |
3453 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3454 | |
9887c20b LPC |
3455 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3456 | NULL, NULL); | |
b893ea5f | 3457 | } |
b893ea5f LG |
3458 | } |
3459 | } | |
3460 | ||
c471fdd1 | 3461 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3462 | int event) |
2b97eabc | 3463 | { |
c471fdd1 | 3464 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3465 | |
c471fdd1 LPC |
3466 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3467 | w = dai->playback_widget; | |
3468 | else | |
3469 | w = dai->capture_widget; | |
fe360685 | 3470 | |
c471fdd1 LPC |
3471 | if (w) { |
3472 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3473 | |
3474 | switch (event) { | |
3475 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3476 | w->active = 1; |
d9b0951b LG |
3477 | break; |
3478 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3479 | w->active = 0; |
d9b0951b LG |
3480 | break; |
3481 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3482 | case SND_SOC_DAPM_STREAM_RESUME: | |
3483 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3484 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3485 | break; | |
3486 | } | |
3487 | } | |
c471fdd1 | 3488 | } |
d9b0951b | 3489 | |
44ba2641 BC |
3490 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3491 | { | |
3492 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3493 | int i; | |
3494 | ||
3495 | /* for each BE DAI link... */ | |
3496 | for (i = 0; i < card->num_rtd; i++) { | |
3497 | rtd = &card->rtd[i]; | |
3498 | ||
3499 | /* | |
3500 | * dynamic FE links have no fixed DAI mapping. | |
3501 | * CODEC<->CODEC links have no direct connection. | |
3502 | */ | |
3503 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3504 | continue; | |
3505 | ||
3506 | dapm_connect_dai_link_widgets(card, rtd); | |
3507 | } | |
3508 | } | |
3509 | ||
c471fdd1 LPC |
3510 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3511 | int event) | |
3512 | { | |
44ba2641 BC |
3513 | int i; |
3514 | ||
c471fdd1 | 3515 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3516 | for (i = 0; i < rtd->num_codecs; i++) |
3517 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3518 | |
95dd5cd6 | 3519 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3520 | } |
3521 | ||
3522 | /** | |
3523 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3524 | * @rtd: PCM runtime data | |
3525 | * @stream: stream name | |
3526 | * @event: stream event | |
3527 | * | |
3528 | * Sends a stream event to the dapm core. The core then makes any | |
3529 | * necessary widget power changes. | |
3530 | * | |
3531 | * Returns 0 for success else error. | |
3532 | */ | |
d9b0951b LG |
3533 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3534 | int event) | |
ce6120cc | 3535 | { |
a73fb2df | 3536 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3537 | |
3cd04343 | 3538 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3539 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3540 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3541 | } |
2b97eabc | 3542 | |
11391100 CK |
3543 | /** |
3544 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3545 | * @dapm: DAPM context | |
3546 | * @pin: pin name | |
3547 | * | |
3548 | * Enables input/output pin and its parents or children widgets iff there is | |
3549 | * a valid audio route and active audio stream. | |
3550 | * | |
3551 | * Requires external locking. | |
3552 | * | |
3553 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3554 | * do any widget power switching. | |
3555 | */ | |
3556 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3557 | const char *pin) | |
3558 | { | |
3559 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3560 | } | |
3561 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3562 | ||
2b97eabc | 3563 | /** |
a5302181 | 3564 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3565 | * @dapm: DAPM context |
a5302181 | 3566 | * @pin: pin name |
2b97eabc | 3567 | * |
74b8f955 | 3568 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3569 | * a valid audio route and active audio stream. |
11391100 | 3570 | * |
a5302181 LG |
3571 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3572 | * do any widget power switching. | |
2b97eabc | 3573 | */ |
ce6120cc | 3574 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3575 | { |
11391100 CK |
3576 | int ret; |
3577 | ||
3578 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3579 | ||
3580 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3581 | ||
3582 | mutex_unlock(&dapm->card->dapm_mutex); | |
3583 | ||
3584 | return ret; | |
a5302181 LG |
3585 | } |
3586 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3587 | |
da34183e | 3588 | /** |
11391100 | 3589 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3590 | * @dapm: DAPM context |
da34183e MB |
3591 | * @pin: pin name |
3592 | * | |
3593 | * Enables input/output pin regardless of any other state. This is | |
3594 | * intended for use with microphone bias supplies used in microphone | |
3595 | * jack detection. | |
3596 | * | |
11391100 CK |
3597 | * Requires external locking. |
3598 | * | |
da34183e MB |
3599 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3600 | * do any widget power switching. | |
3601 | */ | |
11391100 CK |
3602 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3603 | const char *pin) | |
da34183e | 3604 | { |
91a5fca4 | 3605 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3606 | |
91a5fca4 | 3607 | if (!w) { |
30a6a1a4 | 3608 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3609 | return -EINVAL; |
0d86733c MB |
3610 | } |
3611 | ||
30a6a1a4 | 3612 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3613 | w->connected = 1; |
3614 | w->force = 1; | |
75c1f891 | 3615 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3616 | |
91a5fca4 | 3617 | return 0; |
da34183e | 3618 | } |
11391100 CK |
3619 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3620 | ||
3621 | /** | |
3622 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3623 | * @dapm: DAPM context | |
3624 | * @pin: pin name | |
3625 | * | |
3626 | * Enables input/output pin regardless of any other state. This is | |
3627 | * intended for use with microphone bias supplies used in microphone | |
3628 | * jack detection. | |
3629 | * | |
3630 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3631 | * do any widget power switching. | |
3632 | */ | |
3633 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3634 | const char *pin) | |
3635 | { | |
3636 | int ret; | |
3637 | ||
3638 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3639 | ||
3640 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3641 | ||
3642 | mutex_unlock(&dapm->card->dapm_mutex); | |
3643 | ||
3644 | return ret; | |
3645 | } | |
da34183e MB |
3646 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3647 | ||
11391100 CK |
3648 | /** |
3649 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3650 | * @dapm: DAPM context | |
3651 | * @pin: pin name | |
3652 | * | |
3653 | * Disables input/output pin and its parents or children widgets. | |
3654 | * | |
3655 | * Requires external locking. | |
3656 | * | |
3657 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3658 | * do any widget power switching. | |
3659 | */ | |
3660 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3661 | const char *pin) | |
3662 | { | |
3663 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3664 | } | |
3665 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3666 | ||
a5302181 LG |
3667 | /** |
3668 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3669 | * @dapm: DAPM context |
a5302181 LG |
3670 | * @pin: pin name |
3671 | * | |
74b8f955 | 3672 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3673 | * |
a5302181 LG |
3674 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3675 | * do any widget power switching. | |
3676 | */ | |
ce6120cc LG |
3677 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3678 | const char *pin) | |
a5302181 | 3679 | { |
11391100 CK |
3680 | int ret; |
3681 | ||
3682 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3683 | ||
3684 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3685 | ||
3686 | mutex_unlock(&dapm->card->dapm_mutex); | |
3687 | ||
3688 | return ret; | |
2b97eabc | 3689 | } |
a5302181 | 3690 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3691 | |
11391100 CK |
3692 | /** |
3693 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3694 | * @dapm: DAPM context | |
3695 | * @pin: pin name | |
3696 | * | |
3697 | * Marks the specified pin as being not connected, disabling it along | |
3698 | * any parent or child widgets. At present this is identical to | |
3699 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3700 | * additional things such as disabling controls which only affect | |
3701 | * paths through the pin. | |
3702 | * | |
3703 | * Requires external locking. | |
3704 | * | |
3705 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3706 | * do any widget power switching. | |
3707 | */ | |
3708 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3709 | const char *pin) | |
3710 | { | |
3711 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3712 | } | |
3713 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3714 | ||
5817b52a MB |
3715 | /** |
3716 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3717 | * @dapm: DAPM context |
5817b52a MB |
3718 | * @pin: pin name |
3719 | * | |
3720 | * Marks the specified pin as being not connected, disabling it along | |
3721 | * any parent or child widgets. At present this is identical to | |
3722 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3723 | * additional things such as disabling controls which only affect | |
3724 | * paths through the pin. | |
3725 | * | |
3726 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3727 | * do any widget power switching. | |
3728 | */ | |
ce6120cc | 3729 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3730 | { |
11391100 CK |
3731 | int ret; |
3732 | ||
3733 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3734 | ||
3735 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3736 | ||
3737 | mutex_unlock(&dapm->card->dapm_mutex); | |
3738 | ||
3739 | return ret; | |
5817b52a MB |
3740 | } |
3741 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3742 | ||
eeec12bf | 3743 | /** |
a5302181 | 3744 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3745 | * @dapm: DAPM context |
a5302181 | 3746 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3747 | * |
a5302181 | 3748 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3749 | * |
a5302181 | 3750 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3751 | */ |
ce6120cc LG |
3752 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3753 | const char *pin) | |
eeec12bf | 3754 | { |
91a5fca4 | 3755 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3756 | |
91a5fca4 LPC |
3757 | if (w) |
3758 | return w->connected; | |
a68b38ad | 3759 | |
eeec12bf GG |
3760 | return 0; |
3761 | } | |
a5302181 | 3762 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3763 | |
1547aba9 MB |
3764 | /** |
3765 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3766 | * @dapm: DAPM context |
1547aba9 MB |
3767 | * @pin: audio signal pin endpoint (or start point) |
3768 | * | |
3769 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3770 | * system is disabled a path between two endpoints flagged as ignoring | |
3771 | * suspend will not be disabled. The path must already be enabled via | |
3772 | * normal means at suspend time, it will not be turned on if it was not | |
3773 | * already enabled. | |
3774 | */ | |
ce6120cc LG |
3775 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3776 | const char *pin) | |
1547aba9 | 3777 | { |
91a5fca4 | 3778 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3779 | |
91a5fca4 | 3780 | if (!w) { |
30a6a1a4 | 3781 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3782 | return -EINVAL; |
1547aba9 MB |
3783 | } |
3784 | ||
91a5fca4 LPC |
3785 | w->ignore_suspend = 1; |
3786 | ||
3787 | return 0; | |
1547aba9 MB |
3788 | } |
3789 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3790 | ||
1633281b SW |
3791 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3792 | struct snd_soc_dapm_widget *w) | |
3793 | { | |
3794 | struct snd_soc_dapm_path *p; | |
3795 | ||
3796 | list_for_each_entry(p, &card->paths, list) { | |
3797 | if ((p->source == w) || (p->sink == w)) { | |
3798 | dev_dbg(card->dev, | |
3799 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3800 | p->source->name, p->source->id, p->source->dapm, | |
3801 | p->sink->name, p->sink->id, p->sink->dapm); | |
3802 | ||
3803 | /* Connected to something other than the codec */ | |
3804 | if (p->source->dapm != p->sink->dapm) | |
3805 | return true; | |
3806 | /* | |
3807 | * Loopback connection from codec external pin to | |
3808 | * codec external pin | |
3809 | */ | |
3810 | if (p->sink->id == snd_soc_dapm_input) { | |
3811 | switch (p->source->id) { | |
3812 | case snd_soc_dapm_output: | |
3813 | case snd_soc_dapm_micbias: | |
3814 | return true; | |
3815 | default: | |
3816 | break; | |
3817 | } | |
3818 | } | |
3819 | } | |
3820 | } | |
3821 | ||
3822 | return false; | |
3823 | } | |
3824 | ||
3825 | /** | |
7df37884 LPC |
3826 | * snd_soc_dapm_auto_nc_pins - call snd_soc_dapm_nc_pin for unused pins |
3827 | * @card: The card whose pins should be processed | |
1633281b | 3828 | * |
7df37884 LPC |
3829 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the card |
3830 | * which are unused. Pins are used if they are connected externally to a | |
3831 | * component, whether that be to some other device, or a loop-back connection to | |
3832 | * the component itself. | |
1633281b | 3833 | */ |
7df37884 | 3834 | void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card) |
1633281b | 3835 | { |
1633281b SW |
3836 | struct snd_soc_dapm_widget *w; |
3837 | ||
7df37884 | 3838 | dev_dbg(card->dev, "ASoC: Auto NC: DAPMs: card:%p\n", &card->dapm); |
1633281b SW |
3839 | |
3840 | list_for_each_entry(w, &card->widgets, list) { | |
1633281b SW |
3841 | switch (w->id) { |
3842 | case snd_soc_dapm_input: | |
3843 | case snd_soc_dapm_output: | |
3844 | case snd_soc_dapm_micbias: | |
7df37884 | 3845 | dev_dbg(card->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3846 | w->name); |
3847 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
7df37884 | 3848 | dev_dbg(card->dev, |
1633281b | 3849 | "... Not in map; disabling\n"); |
7df37884 | 3850 | snd_soc_dapm_nc_pin(w->dapm, w->name); |
1633281b SW |
3851 | } |
3852 | break; | |
3853 | default: | |
3854 | break; | |
3855 | } | |
3856 | } | |
3857 | } | |
3858 | ||
2b97eabc RP |
3859 | /** |
3860 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3861 | * @dapm: DAPM context |
2b97eabc RP |
3862 | * |
3863 | * Free all dapm widgets and resources. | |
3864 | */ | |
ce6120cc | 3865 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3866 | { |
ce6120cc | 3867 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3868 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3869 | dapm_free_widgets(dapm); |
7be31be8 | 3870 | list_del(&dapm->list); |
2b97eabc RP |
3871 | } |
3872 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3873 | ||
57996358 | 3874 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 3875 | { |
01005a72 | 3876 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3877 | struct snd_soc_dapm_widget *w; |
3878 | LIST_HEAD(down_list); | |
3879 | int powerdown = 0; | |
3880 | ||
01005a72 LG |
3881 | mutex_lock(&card->dapm_mutex); |
3882 | ||
97c866de JN |
3883 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3884 | if (w->dapm != dapm) | |
3885 | continue; | |
51737470 | 3886 | if (w->power) { |
828a842f | 3887 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3888 | w->power = 0; |
51737470 MB |
3889 | powerdown = 1; |
3890 | } | |
3891 | } | |
3892 | ||
3893 | /* If there were no widgets to power down we're already in | |
3894 | * standby. | |
3895 | */ | |
3896 | if (powerdown) { | |
7679e42e MB |
3897 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3898 | snd_soc_dapm_set_bias_level(dapm, | |
3899 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3900 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3901 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3902 | snd_soc_dapm_set_bias_level(dapm, | |
3903 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3904 | } |
01005a72 LG |
3905 | |
3906 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3907 | } |
3908 | ||
3909 | /* | |
3910 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3911 | */ | |
3912 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3913 | { | |
57996358 | 3914 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3915 | |
57996358 | 3916 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
3917 | if (dapm != &card->dapm) { |
3918 | soc_dapm_shutdown_dapm(dapm); | |
3919 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
3920 | snd_soc_dapm_set_bias_level(dapm, | |
3921 | SND_SOC_BIAS_OFF); | |
3922 | } | |
ce6120cc | 3923 | } |
17282ba4 XX |
3924 | |
3925 | soc_dapm_shutdown_dapm(&card->dapm); | |
3926 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
3927 | snd_soc_dapm_set_bias_level(&card->dapm, | |
3928 | SND_SOC_BIAS_OFF); | |
51737470 MB |
3929 | } |
3930 | ||
2b97eabc | 3931 | /* Module information */ |
d331124d | 3932 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3933 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3934 | MODULE_LICENSE("GPL"); |