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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 | ||
92a99ea4 LPC |
162 | /* |
163 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of input | |
164 | * paths | |
165 | * @w: The widget for which to invalidate the cached number of input paths | |
166 | * | |
167 | * The function resets the cached number of inputs for the specified widget and | |
168 | * all widgets that can be reached via outgoing paths from the widget. | |
169 | * | |
170 | * This function must be called if the number of input paths for a widget might | |
171 | * have changed. E.g. if the source state of a widget changes or a path is added | |
172 | * or activated with the widget as the sink. | |
173 | */ | |
174 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
175 | { | |
176 | struct snd_soc_dapm_widget *sink; | |
177 | struct snd_soc_dapm_path *p; | |
178 | LIST_HEAD(list); | |
179 | ||
180 | dapm_assert_locked(w->dapm); | |
181 | ||
182 | if (w->inputs == -1) | |
183 | return; | |
184 | ||
185 | w->inputs = -1; | |
186 | list_add_tail(&w->work_list, &list); | |
187 | ||
188 | list_for_each_entry(w, &list, work_list) { | |
189 | list_for_each_entry(p, &w->sinks, list_source) { | |
190 | if (p->is_supply || p->weak || !p->connect) | |
191 | continue; | |
192 | sink = p->sink; | |
193 | if (sink->inputs != -1) { | |
194 | sink->inputs = -1; | |
195 | list_add_tail(&sink->work_list, &list); | |
196 | } | |
197 | } | |
198 | } | |
199 | } | |
200 | ||
201 | /* | |
202 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
203 | * output paths | |
204 | * @w: The widget for which to invalidate the cached number of output paths | |
205 | * | |
206 | * Resets the cached number of outputs for the specified widget and all widgets | |
207 | * that can be reached via incoming paths from the widget. | |
208 | * | |
209 | * This function must be called if the number of output paths for a widget might | |
210 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
211 | * or activated with the widget as the source. | |
212 | */ | |
213 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
214 | { | |
215 | struct snd_soc_dapm_widget *source; | |
216 | struct snd_soc_dapm_path *p; | |
217 | LIST_HEAD(list); | |
218 | ||
219 | dapm_assert_locked(w->dapm); | |
220 | ||
221 | if (w->outputs == -1) | |
222 | return; | |
223 | ||
224 | w->outputs = -1; | |
225 | list_add_tail(&w->work_list, &list); | |
226 | ||
227 | list_for_each_entry(w, &list, work_list) { | |
228 | list_for_each_entry(p, &w->sources, list_sink) { | |
229 | if (p->is_supply || p->weak || !p->connect) | |
230 | continue; | |
231 | source = p->source; | |
232 | if (source->outputs != -1) { | |
233 | source->outputs = -1; | |
234 | list_add_tail(&source->work_list, &list); | |
235 | } | |
236 | } | |
237 | } | |
238 | } | |
239 | ||
240 | /* | |
241 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
242 | * for the widgets connected to a path | |
243 | * @p: The path to invalidate | |
244 | * | |
245 | * Resets the cached number of inputs for the sink of the path and the cached | |
246 | * number of outputs for the source of the path. | |
247 | * | |
248 | * This function must be called when a path is added, removed or the connected | |
249 | * state changes. | |
250 | */ | |
251 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
252 | { | |
253 | /* | |
254 | * Weak paths or supply paths do not influence the number of input or | |
255 | * output paths of their neighbors. | |
256 | */ | |
257 | if (p->weak || p->is_supply) | |
258 | return; | |
259 | ||
260 | /* | |
261 | * The number of connected endpoints is the sum of the number of | |
262 | * connected endpoints of all neighbors. If a node with 0 connected | |
263 | * endpoints is either connected or disconnected that sum won't change, | |
264 | * so there is no need to re-check the path. | |
265 | */ | |
266 | if (p->source->inputs != 0) | |
267 | dapm_widget_invalidate_input_paths(p->sink); | |
268 | if (p->sink->outputs != 0) | |
269 | dapm_widget_invalidate_output_paths(p->source); | |
270 | } | |
271 | ||
8be4da29 | 272 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 273 | { |
e2d32ff6 MB |
274 | struct snd_soc_dapm_widget *w; |
275 | ||
276 | mutex_lock(&card->dapm_mutex); | |
277 | ||
278 | list_for_each_entry(w, &card->widgets, list) { | |
92a99ea4 | 279 | if (w->is_sink || w->is_source) { |
8be4da29 | 280 | dapm_mark_dirty(w, "Rechecking endpoints"); |
92a99ea4 LPC |
281 | if (w->is_sink) |
282 | dapm_widget_invalidate_output_paths(w); | |
283 | if (w->is_source) | |
284 | dapm_widget_invalidate_input_paths(w); | |
285 | } | |
e2d32ff6 MB |
286 | } |
287 | ||
288 | mutex_unlock(&card->dapm_mutex); | |
289 | } | |
8be4da29 | 290 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 291 | |
2b97eabc | 292 | /* create a new dapm widget */ |
88cb4290 | 293 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
294 | const struct snd_soc_dapm_widget *_widget) |
295 | { | |
88cb4290 | 296 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
297 | } |
298 | ||
e84357f7 | 299 | struct dapm_kcontrol_data { |
cf7c1de2 | 300 | unsigned int value; |
57295073 | 301 | struct snd_soc_dapm_widget *widget; |
5106b92f | 302 | struct list_head paths; |
2c75bdf3 | 303 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
304 | }; |
305 | ||
306 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
307 | struct snd_kcontrol *kcontrol) | |
308 | { | |
309 | struct dapm_kcontrol_data *data; | |
57295073 | 310 | struct soc_mixer_control *mc; |
e84357f7 | 311 | |
2c75bdf3 | 312 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
313 | if (!data) { |
314 | dev_err(widget->dapm->dev, | |
315 | "ASoC: can't allocate kcontrol data for %s\n", | |
316 | widget->name); | |
317 | return -ENOMEM; | |
318 | } | |
319 | ||
5106b92f | 320 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 321 | |
57295073 LPC |
322 | switch (widget->id) { |
323 | case snd_soc_dapm_switch: | |
324 | case snd_soc_dapm_mixer: | |
325 | case snd_soc_dapm_mixer_named_ctl: | |
326 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
327 | ||
328 | if (mc->autodisable) { | |
329 | struct snd_soc_dapm_widget template; | |
330 | ||
331 | memset(&template, 0, sizeof(template)); | |
332 | template.reg = mc->reg; | |
333 | template.mask = (1 << fls(mc->max)) - 1; | |
334 | template.shift = mc->shift; | |
335 | if (mc->invert) | |
336 | template.off_val = mc->max; | |
337 | else | |
338 | template.off_val = 0; | |
339 | template.on_val = template.off_val; | |
340 | template.id = snd_soc_dapm_kcontrol; | |
341 | template.name = kcontrol->id.name; | |
342 | ||
2daabd78 LPC |
343 | data->value = template.on_val; |
344 | ||
57295073 LPC |
345 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
346 | &template); | |
347 | if (!data->widget) { | |
348 | kfree(data); | |
349 | return -ENOMEM; | |
350 | } | |
351 | } | |
352 | break; | |
353 | default: | |
354 | break; | |
355 | } | |
356 | ||
e84357f7 LPC |
357 | kcontrol->private_data = data; |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
363 | { | |
364 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 365 | kfree(data->wlist); |
e84357f7 LPC |
366 | kfree(data); |
367 | } | |
368 | ||
369 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
370 | const struct snd_kcontrol *kcontrol) | |
371 | { | |
372 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
373 | ||
2c75bdf3 | 374 | return data->wlist; |
e84357f7 LPC |
375 | } |
376 | ||
377 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
378 | struct snd_soc_dapm_widget *widget) | |
379 | { | |
380 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
381 | struct snd_soc_dapm_widget_list *new_wlist; |
382 | unsigned int n; | |
e84357f7 | 383 | |
2c75bdf3 LPC |
384 | if (data->wlist) |
385 | n = data->wlist->num_widgets + 1; | |
386 | else | |
387 | n = 1; | |
388 | ||
389 | new_wlist = krealloc(data->wlist, | |
390 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
391 | if (!new_wlist) | |
e84357f7 LPC |
392 | return -ENOMEM; |
393 | ||
2c75bdf3 LPC |
394 | new_wlist->widgets[n - 1] = widget; |
395 | new_wlist->num_widgets = n; | |
e84357f7 | 396 | |
2c75bdf3 | 397 | data->wlist = new_wlist; |
e84357f7 LPC |
398 | |
399 | return 0; | |
400 | } | |
401 | ||
5106b92f LPC |
402 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
403 | struct snd_soc_dapm_path *path) | |
404 | { | |
405 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
406 | ||
407 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
408 | |
409 | if (data->widget) { | |
410 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
411 | path->source, NULL, NULL); | |
412 | } | |
413 | } | |
414 | ||
415 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
416 | { | |
417 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
418 | ||
419 | if (!data->widget) | |
420 | return true; | |
421 | ||
422 | return data->widget->power; | |
5106b92f LPC |
423 | } |
424 | ||
425 | static struct list_head *dapm_kcontrol_get_path_list( | |
426 | const struct snd_kcontrol *kcontrol) | |
427 | { | |
428 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
429 | ||
430 | return &data->paths; | |
431 | } | |
432 | ||
433 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
434 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
435 | list_kcontrol) | |
436 | ||
5dc0158a | 437 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
438 | { |
439 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
440 | ||
441 | return data->value; | |
442 | } | |
5dc0158a | 443 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
444 | |
445 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
446 | unsigned int value) | |
447 | { | |
448 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
449 | ||
450 | if (data->value == value) | |
451 | return false; | |
452 | ||
57295073 LPC |
453 | if (data->widget) |
454 | data->widget->on_val = value; | |
455 | ||
cf7c1de2 LPC |
456 | data->value = value; |
457 | ||
458 | return true; | |
459 | } | |
460 | ||
ce0fc93a LPC |
461 | /** |
462 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
463 | * kcontrol | |
464 | * @kcontrol: The kcontrol | |
465 | * | |
466 | * Note: This function must only be used on kcontrols that are known to have | |
467 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
468 | */ | |
469 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
470 | struct snd_kcontrol *kcontrol) | |
471 | { | |
472 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
473 | } | |
474 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
475 | ||
eee5d7f9 LPC |
476 | /** |
477 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
478 | * @kcontrol: The kcontrol | |
479 | */ | |
480 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
481 | { | |
ce0fc93a | 482 | return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); |
eee5d7f9 LPC |
483 | } |
484 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
485 | ||
6c120e19 LG |
486 | static void dapm_reset(struct snd_soc_card *card) |
487 | { | |
488 | struct snd_soc_dapm_widget *w; | |
489 | ||
f9fa2b18 MB |
490 | lockdep_assert_held(&card->dapm_mutex); |
491 | ||
6c120e19 LG |
492 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
493 | ||
494 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 495 | w->new_power = w->power; |
6c120e19 | 496 | w->power_checked = false; |
6c120e19 LG |
497 | } |
498 | } | |
499 | ||
94f99c87 LPC |
500 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
501 | { | |
502 | if (!dapm->component) | |
503 | return NULL; | |
504 | return dapm->component->name_prefix; | |
505 | } | |
506 | ||
ce0fc93a | 507 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 508 | unsigned int *value) |
0445bdf4 | 509 | { |
ce0fc93a | 510 | if (!dapm->component) |
e2c330b9 | 511 | return -EIO; |
ce0fc93a | 512 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
513 | } |
514 | ||
ce0fc93a | 515 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 516 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 517 | { |
ce0fc93a | 518 | if (!dapm->component) |
e2c330b9 | 519 | return -EIO; |
ce0fc93a | 520 | return snd_soc_component_update_bits_async(dapm->component, reg, |
e2c330b9 | 521 | mask, value); |
49575fb5 LG |
522 | } |
523 | ||
ce0fc93a LPC |
524 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
525 | int reg, unsigned int mask, unsigned int value) | |
526 | { | |
527 | if (!dapm->component) | |
528 | return -EIO; | |
529 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
530 | } | |
531 | ||
eb270e98 MB |
532 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
533 | { | |
e2c330b9 LPC |
534 | if (dapm->component) |
535 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
536 | } |
537 | ||
452c5eaa MB |
538 | /** |
539 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 540 | * @dapm: DAPM context |
452c5eaa MB |
541 | * @level: level to configure |
542 | * | |
543 | * Configure the bias (power) levels for the SoC audio device. | |
544 | * | |
545 | * Returns 0 for success else error. | |
546 | */ | |
ed5a4c47 | 547 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 548 | enum snd_soc_bias_level level) |
452c5eaa | 549 | { |
ed5a4c47 | 550 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
551 | int ret = 0; |
552 | ||
84e90930 MB |
553 | trace_snd_soc_bias_level_start(card, level); |
554 | ||
f0fba2ad | 555 | if (card && card->set_bias_level) |
d4c6005f | 556 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
557 | if (ret != 0) |
558 | goto out; | |
559 | ||
68f831c2 LPC |
560 | if (dapm->set_bias_level) |
561 | ret = dapm->set_bias_level(dapm, level); | |
562 | else if (!card || dapm != &card->dapm) | |
4123128e LG |
563 | dapm->bias_level = level; |
564 | ||
171ec6b0 MB |
565 | if (ret != 0) |
566 | goto out; | |
567 | ||
568 | if (card && card->set_bias_level_post) | |
d4c6005f | 569 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 570 | out: |
84e90930 MB |
571 | trace_snd_soc_bias_level_done(card, level); |
572 | ||
452c5eaa MB |
573 | return ret; |
574 | } | |
575 | ||
74b8f955 | 576 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 577 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
5fe5b767 | 578 | struct snd_soc_dapm_path *path, const char *control_name) |
2b97eabc | 579 | { |
5fe5b767 | 580 | const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0]; |
2b97eabc | 581 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 582 | unsigned int val, item; |
2b97eabc | 583 | int i; |
24ff33ac | 584 | |
234c0b8f | 585 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 586 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
587 | val = (val >> e->shift_l) & e->mask; |
588 | item = snd_soc_enum_val_to_item(e, val); | |
589 | } else { | |
24ff33ac DP |
590 | /* since a virtual mux has no backing registers to |
591 | * decide which path to connect, it will try to match | |
592 | * with the first enumeration. This is to ensure | |
593 | * that the default mux choice (the first) will be | |
594 | * correctly powered up during initialization. | |
595 | */ | |
234c0b8f | 596 | item = 0; |
24ff33ac | 597 | } |
2e72f8e3 | 598 | |
9a8d38db | 599 | for (i = 0; i < e->items; i++) { |
2b97eabc | 600 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 601 | path->name = e->texts[i]; |
234c0b8f LPC |
602 | if (i == item) |
603 | path->connect = 1; | |
604 | else | |
605 | path->connect = 0; | |
2b97eabc RP |
606 | return 0; |
607 | } | |
608 | } | |
609 | ||
610 | return -ENODEV; | |
611 | } | |
612 | ||
234c0b8f | 613 | /* set up initial codec paths */ |
5fe5b767 | 614 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
615 | { |
616 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 617 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
618 | unsigned int reg = mc->reg; |
619 | unsigned int shift = mc->shift; | |
620 | unsigned int max = mc->max; | |
621 | unsigned int mask = (1 << fls(max)) - 1; | |
622 | unsigned int invert = mc->invert; | |
623 | unsigned int val; | |
624 | ||
625 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 626 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
627 | val = (val >> shift) & mask; |
628 | if (invert) | |
629 | val = max - val; | |
630 | p->connect = !!val; | |
631 | } else { | |
632 | p->connect = 0; | |
633 | } | |
634 | } | |
635 | ||
74b8f955 | 636 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 637 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
638 | struct snd_soc_dapm_path *path, const char *control_name) |
639 | { | |
640 | int i; | |
641 | ||
642 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
643 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
644 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
645 | path->name = path->sink->kcontrol_news[i].name; | |
646 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
647 | return 0; |
648 | } | |
649 | } | |
650 | return -ENODEV; | |
651 | } | |
652 | ||
af46800b | 653 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 654 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
655 | const struct snd_kcontrol_new *kcontrol_new, |
656 | struct snd_kcontrol **kcontrol) | |
657 | { | |
658 | struct snd_soc_dapm_widget *w; | |
659 | int i; | |
660 | ||
661 | *kcontrol = NULL; | |
662 | ||
663 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
664 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
665 | continue; | |
af46800b SW |
666 | for (i = 0; i < w->num_kcontrols; i++) { |
667 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
668 | if (w->kcontrols) | |
669 | *kcontrol = w->kcontrols[i]; | |
670 | return 1; | |
671 | } | |
672 | } | |
673 | } | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
85762e71 SW |
678 | /* |
679 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
680 | * create it. Either way, add the widget into the control's widget list | |
681 | */ | |
682 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 683 | int kci) |
2b97eabc | 684 | { |
4b80b8c2 | 685 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 686 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 687 | const char *prefix; |
85762e71 SW |
688 | size_t prefix_len; |
689 | int shared; | |
690 | struct snd_kcontrol *kcontrol; | |
85762e71 | 691 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 692 | char *long_name = NULL; |
85762e71 | 693 | const char *name; |
e5092c96 | 694 | int ret = 0; |
efb7ac3f | 695 | |
94f99c87 | 696 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
697 | if (prefix) |
698 | prefix_len = strlen(prefix) + 1; | |
699 | else | |
700 | prefix_len = 0; | |
701 | ||
85762e71 SW |
702 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
703 | &kcontrol); | |
2b97eabc | 704 | |
85762e71 SW |
705 | if (!kcontrol) { |
706 | if (shared) { | |
707 | wname_in_long_name = false; | |
708 | kcname_in_long_name = true; | |
709 | } else { | |
710 | switch (w->id) { | |
711 | case snd_soc_dapm_switch: | |
712 | case snd_soc_dapm_mixer: | |
713 | wname_in_long_name = true; | |
714 | kcname_in_long_name = true; | |
715 | break; | |
716 | case snd_soc_dapm_mixer_named_ctl: | |
717 | wname_in_long_name = false; | |
718 | kcname_in_long_name = true; | |
719 | break; | |
720 | case snd_soc_dapm_mux: | |
85762e71 SW |
721 | wname_in_long_name = true; |
722 | kcname_in_long_name = false; | |
723 | break; | |
724 | default: | |
85762e71 | 725 | return -EINVAL; |
82cd8764 | 726 | } |
85762e71 SW |
727 | } |
728 | ||
729 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
730 | /* |
731 | * The control will get a prefix from the control | |
732 | * creation process but we're also using the same | |
733 | * prefix for widgets so cut the prefix off the | |
734 | * front of the widget name. | |
ca9c1aae | 735 | */ |
2b581074 | 736 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
737 | w->name + prefix_len, |
738 | w->kcontrol_news[kci].name); | |
e84357f7 | 739 | if (long_name == NULL) |
2b581074 | 740 | return -ENOMEM; |
85762e71 SW |
741 | |
742 | name = long_name; | |
743 | } else if (wname_in_long_name) { | |
744 | long_name = NULL; | |
745 | name = w->name + prefix_len; | |
746 | } else { | |
747 | long_name = NULL; | |
748 | name = w->kcontrol_news[kci].name; | |
749 | } | |
ca9c1aae | 750 | |
e84357f7 | 751 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 752 | prefix); |
e5092c96 DM |
753 | if (!kcontrol) { |
754 | ret = -ENOMEM; | |
755 | goto exit_free; | |
756 | } | |
757 | ||
9356e9d5 | 758 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
759 | |
760 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
761 | if (ret) { | |
762 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 763 | goto exit_free; |
e84357f7 LPC |
764 | } |
765 | ||
85762e71 SW |
766 | ret = snd_ctl_add(card, kcontrol); |
767 | if (ret < 0) { | |
768 | dev_err(dapm->dev, | |
769 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
770 | w->name, name, ret); | |
e5092c96 | 771 | goto exit_free; |
85762e71 | 772 | } |
85762e71 | 773 | } |
2b97eabc | 774 | |
2c75bdf3 | 775 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
776 | if (ret == 0) |
777 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 778 | |
e5092c96 DM |
779 | exit_free: |
780 | kfree(long_name); | |
ca9c1aae | 781 | |
e5092c96 | 782 | return ret; |
85762e71 | 783 | } |
219b93f5 | 784 | |
85762e71 SW |
785 | /* create new dapm mixer control */ |
786 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
787 | { | |
788 | int i, ret; | |
789 | struct snd_soc_dapm_path *path; | |
790 | ||
791 | /* add kcontrol */ | |
792 | for (i = 0; i < w->num_kcontrols; i++) { | |
793 | /* match name */ | |
794 | list_for_each_entry(path, &w->sources, list_sink) { | |
795 | /* mixer/mux paths name must match control name */ | |
796 | if (path->name != (char *)w->kcontrol_news[i].name) | |
797 | continue; | |
798 | ||
799 | if (w->kcontrols[i]) { | |
5106b92f | 800 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 801 | continue; |
2b97eabc | 802 | } |
85762e71 | 803 | |
946d92a1 | 804 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
805 | if (ret < 0) |
806 | return ret; | |
946d92a1 MB |
807 | |
808 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
809 | } |
810 | } | |
85762e71 SW |
811 | |
812 | return 0; | |
2b97eabc RP |
813 | } |
814 | ||
815 | /* create new dapm mux control */ | |
4b80b8c2 | 816 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 817 | { |
4b80b8c2 | 818 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 819 | struct snd_soc_dapm_path *path; |
af46800b | 820 | int ret; |
2b97eabc | 821 | |
af46800b SW |
822 | if (w->num_kcontrols != 1) { |
823 | dev_err(dapm->dev, | |
30a6a1a4 | 824 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 825 | w->name); |
2b97eabc RP |
826 | return -EINVAL; |
827 | } | |
828 | ||
fe581391 | 829 | if (list_empty(&w->sources)) { |
85762e71 SW |
830 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
831 | return -EINVAL; | |
af46800b | 832 | } |
ce6120cc | 833 | |
946d92a1 | 834 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
835 | if (ret < 0) |
836 | return ret; | |
fad59888 | 837 | |
98407efc LPC |
838 | list_for_each_entry(path, &w->sources, list_sink) { |
839 | if (path->name) | |
840 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
841 | } | |
2b97eabc | 842 | |
af46800b | 843 | return 0; |
2b97eabc RP |
844 | } |
845 | ||
846 | /* create new dapm volume control */ | |
4b80b8c2 | 847 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 848 | { |
a6c65736 | 849 | if (w->num_kcontrols) |
f7d41ae8 | 850 | dev_err(w->dapm->dev, |
30a6a1a4 | 851 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 852 | |
a6c65736 | 853 | return 0; |
2b97eabc RP |
854 | } |
855 | ||
9949788b MB |
856 | /* We implement power down on suspend by checking the power state of |
857 | * the ALSA card - when we are suspending the ALSA state for the card | |
858 | * is set to D3. | |
859 | */ | |
860 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
861 | { | |
12ea2c78 | 862 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 863 | |
f0fba2ad | 864 | switch (level) { |
9949788b MB |
865 | case SNDRV_CTL_POWER_D3hot: |
866 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 867 | if (widget->ignore_suspend) |
30a6a1a4 | 868 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 869 | widget->name); |
1547aba9 | 870 | return widget->ignore_suspend; |
9949788b MB |
871 | default: |
872 | return 1; | |
873 | } | |
874 | } | |
875 | ||
ec2e3031 LG |
876 | /* add widget to list if it's not already in the list */ |
877 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
878 | struct snd_soc_dapm_widget *w) | |
879 | { | |
880 | struct snd_soc_dapm_widget_list *wlist; | |
881 | int wlistsize, wlistentries, i; | |
882 | ||
883 | if (*list == NULL) | |
884 | return -EINVAL; | |
885 | ||
886 | wlist = *list; | |
887 | ||
888 | /* is this widget already in the list */ | |
889 | for (i = 0; i < wlist->num_widgets; i++) { | |
890 | if (wlist->widgets[i] == w) | |
891 | return 0; | |
892 | } | |
893 | ||
894 | /* allocate some new space */ | |
895 | wlistentries = wlist->num_widgets + 1; | |
896 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
897 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
898 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
899 | if (*list == NULL) { | |
30a6a1a4 | 900 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
901 | w->name); |
902 | return -ENOMEM; | |
903 | } | |
904 | wlist = *list; | |
905 | ||
906 | /* insert the widget */ | |
30a6a1a4 | 907 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
908 | w->name, wlist->num_widgets); |
909 | ||
910 | wlist->widgets[wlist->num_widgets] = w; | |
911 | wlist->num_widgets++; | |
912 | return 1; | |
913 | } | |
914 | ||
2b97eabc RP |
915 | /* |
916 | * Recursively check for a completed path to an active or physically connected | |
917 | * output widget. Returns number of complete paths. | |
918 | */ | |
ec2e3031 LG |
919 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
920 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
921 | { |
922 | struct snd_soc_dapm_path *path; | |
923 | int con = 0; | |
924 | ||
024dc078 MB |
925 | if (widget->outputs >= 0) |
926 | return widget->outputs; | |
927 | ||
de02d078 MB |
928 | DAPM_UPDATE_STAT(widget, path_checks); |
929 | ||
6dd98b0a LPC |
930 | if (widget->is_sink && widget->connected) { |
931 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
932 | return widget->outputs; | |
2b97eabc RP |
933 | } |
934 | ||
935 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
936 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
937 | ||
c1862c8b | 938 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
939 | continue; |
940 | ||
8af294b4 MB |
941 | if (path->walking) |
942 | return 1; | |
943 | ||
ec2e3031 LG |
944 | trace_snd_soc_dapm_output_path(widget, path); |
945 | ||
7ddd4cd5 | 946 | if (path->connect) { |
8af294b4 | 947 | path->walking = 1; |
ec2e3031 LG |
948 | |
949 | /* do we need to add this widget to the list ? */ | |
950 | if (list) { | |
951 | int err; | |
952 | err = dapm_list_add_widget(list, path->sink); | |
953 | if (err < 0) { | |
30a6a1a4 LG |
954 | dev_err(widget->dapm->dev, |
955 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 956 | widget->name); |
8af294b4 | 957 | path->walking = 0; |
ec2e3031 LG |
958 | return con; |
959 | } | |
960 | } | |
961 | ||
962 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
963 | |
964 | path->walking = 0; | |
2b97eabc RP |
965 | } |
966 | } | |
967 | ||
024dc078 MB |
968 | widget->outputs = con; |
969 | ||
2b97eabc RP |
970 | return con; |
971 | } | |
972 | ||
973 | /* | |
974 | * Recursively check for a completed path to an active or physically connected | |
975 | * input widget. Returns number of complete paths. | |
976 | */ | |
ec2e3031 LG |
977 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
978 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
979 | { |
980 | struct snd_soc_dapm_path *path; | |
981 | int con = 0; | |
982 | ||
024dc078 MB |
983 | if (widget->inputs >= 0) |
984 | return widget->inputs; | |
985 | ||
de02d078 MB |
986 | DAPM_UPDATE_STAT(widget, path_checks); |
987 | ||
6dd98b0a LPC |
988 | if (widget->is_source && widget->connected) { |
989 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
990 | return widget->inputs; | |
2b97eabc RP |
991 | } |
992 | ||
993 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
994 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
995 | ||
c1862c8b | 996 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
997 | continue; |
998 | ||
8af294b4 MB |
999 | if (path->walking) |
1000 | return 1; | |
1001 | ||
ec2e3031 LG |
1002 | trace_snd_soc_dapm_input_path(widget, path); |
1003 | ||
7ddd4cd5 | 1004 | if (path->connect) { |
8af294b4 | 1005 | path->walking = 1; |
ec2e3031 LG |
1006 | |
1007 | /* do we need to add this widget to the list ? */ | |
1008 | if (list) { | |
1009 | int err; | |
90c6ce0d | 1010 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1011 | if (err < 0) { |
30a6a1a4 LG |
1012 | dev_err(widget->dapm->dev, |
1013 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1014 | widget->name); |
8af294b4 | 1015 | path->walking = 0; |
ec2e3031 LG |
1016 | return con; |
1017 | } | |
1018 | } | |
1019 | ||
1020 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1021 | |
1022 | path->walking = 0; | |
2b97eabc RP |
1023 | } |
1024 | } | |
1025 | ||
024dc078 MB |
1026 | widget->inputs = con; |
1027 | ||
2b97eabc RP |
1028 | return con; |
1029 | } | |
1030 | ||
ec2e3031 LG |
1031 | /** |
1032 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1033 | * @dai: the soc DAI. | |
1034 | * @stream: stream direction. | |
1035 | * @list: list of active widgets for this stream. | |
1036 | * | |
1037 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1038 | * the initial stream specified by name. This takes into account | |
1039 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1040 | * | |
1041 | * Returns the number of valid paths or negative error. | |
1042 | */ | |
1043 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1044 | struct snd_soc_dapm_widget_list **list) | |
1045 | { | |
313665b9 | 1046 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1047 | struct snd_soc_dapm_widget *w; |
ec2e3031 LG |
1048 | int paths; |
1049 | ||
1050 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1051 | |
1052 | /* | |
1053 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1054 | * to reset the cached number of inputs and outputs. | |
1055 | */ | |
1056 | list_for_each_entry(w, &card->widgets, list) { | |
1057 | w->inputs = -1; | |
1058 | w->outputs = -1; | |
1059 | } | |
ec2e3031 | 1060 | |
130897ac | 1061 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
ec2e3031 | 1062 | paths = is_connected_output_ep(dai->playback_widget, list); |
130897ac | 1063 | else |
d298caae | 1064 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
1065 | |
1066 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1067 | mutex_unlock(&card->dapm_mutex); |
1068 | ||
1069 | return paths; | |
1070 | } | |
1071 | ||
62ea874a MB |
1072 | /* |
1073 | * Handler for regulator supply widget. | |
1074 | */ | |
1075 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1076 | struct snd_kcontrol *kcontrol, int event) | |
1077 | { | |
c05b84d1 MB |
1078 | int ret; |
1079 | ||
eb270e98 MB |
1080 | soc_dapm_async_complete(w->dapm); |
1081 | ||
c05b84d1 | 1082 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1083 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1084 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1085 | if (ret != 0) |
1086 | dev_warn(w->dapm->dev, | |
30686c35 | 1087 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1088 | w->name, ret); |
1089 | } | |
1090 | ||
a3cc056b | 1091 | return regulator_enable(w->regulator); |
c05b84d1 | 1092 | } else { |
de9ba98b | 1093 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1094 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1095 | if (ret != 0) |
1096 | dev_warn(w->dapm->dev, | |
30686c35 | 1097 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1098 | w->name, ret); |
1099 | } | |
1100 | ||
a3cc056b | 1101 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1102 | } |
62ea874a MB |
1103 | } |
1104 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1105 | ||
d7e7eb91 OL |
1106 | /* |
1107 | * Handler for clock supply widget. | |
1108 | */ | |
1109 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1110 | struct snd_kcontrol *kcontrol, int event) | |
1111 | { | |
1112 | if (!w->clk) | |
1113 | return -EIO; | |
1114 | ||
eb270e98 MB |
1115 | soc_dapm_async_complete(w->dapm); |
1116 | ||
ec02995a | 1117 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1118 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1119 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1120 | } else { |
37c1b927 | 1121 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1122 | return 0; |
1123 | } | |
ec02995a | 1124 | #endif |
98b3cf12 | 1125 | return 0; |
d7e7eb91 OL |
1126 | } |
1127 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1128 | ||
d805002b MB |
1129 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1130 | { | |
9b8a83b2 MB |
1131 | if (w->power_checked) |
1132 | return w->new_power; | |
1133 | ||
d805002b | 1134 | if (w->force) |
9b8a83b2 | 1135 | w->new_power = 1; |
d805002b | 1136 | else |
9b8a83b2 MB |
1137 | w->new_power = w->power_check(w); |
1138 | ||
1139 | w->power_checked = true; | |
1140 | ||
1141 | return w->new_power; | |
d805002b MB |
1142 | } |
1143 | ||
cd0f2d47 MB |
1144 | /* Generic check to see if a widget should be powered. |
1145 | */ | |
1146 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1147 | { | |
1148 | int in, out; | |
1149 | ||
de02d078 MB |
1150 | DAPM_UPDATE_STAT(w, power_checks); |
1151 | ||
ec2e3031 | 1152 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1153 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1154 | return out != 0 && in != 0; |
1155 | } | |
1156 | ||
246d0a17 MB |
1157 | /* Check to see if a power supply is needed */ |
1158 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1159 | { | |
1160 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1161 | |
de02d078 MB |
1162 | DAPM_UPDATE_STAT(w, power_checks); |
1163 | ||
246d0a17 MB |
1164 | /* Check if one of our outputs is connected */ |
1165 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1166 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1167 | ||
bf3a9e13 MB |
1168 | if (path->weak) |
1169 | continue; | |
1170 | ||
215edda3 MB |
1171 | if (path->connected && |
1172 | !path->connected(path->source, path->sink)) | |
1173 | continue; | |
1174 | ||
f68d7e16 MB |
1175 | if (dapm_widget_power_check(path->sink)) |
1176 | return 1; | |
246d0a17 MB |
1177 | } |
1178 | ||
f68d7e16 | 1179 | return 0; |
246d0a17 MB |
1180 | } |
1181 | ||
35c64bca MB |
1182 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1183 | { | |
1184 | return 1; | |
1185 | } | |
1186 | ||
38357ab2 MB |
1187 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1188 | struct snd_soc_dapm_widget *b, | |
828a842f | 1189 | bool power_up) |
42aa3418 | 1190 | { |
828a842f MB |
1191 | int *sort; |
1192 | ||
1193 | if (power_up) | |
1194 | sort = dapm_up_seq; | |
1195 | else | |
1196 | sort = dapm_down_seq; | |
1197 | ||
38357ab2 MB |
1198 | if (sort[a->id] != sort[b->id]) |
1199 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1200 | if (a->subseq != b->subseq) { |
1201 | if (power_up) | |
1202 | return a->subseq - b->subseq; | |
1203 | else | |
1204 | return b->subseq - a->subseq; | |
1205 | } | |
b22ead2a MB |
1206 | if (a->reg != b->reg) |
1207 | return a->reg - b->reg; | |
84dab567 MB |
1208 | if (a->dapm != b->dapm) |
1209 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1210 | |
38357ab2 MB |
1211 | return 0; |
1212 | } | |
42aa3418 | 1213 | |
38357ab2 MB |
1214 | /* Insert a widget in order into a DAPM power sequence. */ |
1215 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1216 | struct list_head *list, | |
828a842f | 1217 | bool power_up) |
38357ab2 MB |
1218 | { |
1219 | struct snd_soc_dapm_widget *w; | |
1220 | ||
1221 | list_for_each_entry(w, list, power_list) | |
828a842f | 1222 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1223 | list_add_tail(&new_widget->power_list, &w->power_list); |
1224 | return; | |
1225 | } | |
1226 | ||
1227 | list_add_tail(&new_widget->power_list, list); | |
1228 | } | |
1229 | ||
95dd5cd6 | 1230 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1231 | struct snd_soc_dapm_widget *w, int event) |
1232 | { | |
68f89ad8 MB |
1233 | const char *ev_name; |
1234 | int power, ret; | |
1235 | ||
1236 | switch (event) { | |
1237 | case SND_SOC_DAPM_PRE_PMU: | |
1238 | ev_name = "PRE_PMU"; | |
1239 | power = 1; | |
1240 | break; | |
1241 | case SND_SOC_DAPM_POST_PMU: | |
1242 | ev_name = "POST_PMU"; | |
1243 | power = 1; | |
1244 | break; | |
1245 | case SND_SOC_DAPM_PRE_PMD: | |
1246 | ev_name = "PRE_PMD"; | |
1247 | power = 0; | |
1248 | break; | |
1249 | case SND_SOC_DAPM_POST_PMD: | |
1250 | ev_name = "POST_PMD"; | |
1251 | power = 0; | |
1252 | break; | |
80114129 MB |
1253 | case SND_SOC_DAPM_WILL_PMU: |
1254 | ev_name = "WILL_PMU"; | |
1255 | power = 1; | |
1256 | break; | |
1257 | case SND_SOC_DAPM_WILL_PMD: | |
1258 | ev_name = "WILL_PMD"; | |
1259 | power = 0; | |
1260 | break; | |
68f89ad8 | 1261 | default: |
a6ed0608 | 1262 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1263 | return; |
1264 | } | |
1265 | ||
39eb5fd1 | 1266 | if (w->new_power != power) |
68f89ad8 MB |
1267 | return; |
1268 | ||
1269 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1270 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1271 | w->name, ev_name); |
eb270e98 | 1272 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1273 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1274 | ret = w->event(w, NULL, event); |
84e90930 | 1275 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1276 | if (ret < 0) |
95dd5cd6 | 1277 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1278 | ev_name, w->name, ret); |
1279 | } | |
1280 | } | |
1281 | ||
b22ead2a | 1282 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1283 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1284 | struct list_head *pending) |
163cac06 | 1285 | { |
ce0fc93a | 1286 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1287 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1288 | int reg; |
b22ead2a MB |
1289 | unsigned int value = 0; |
1290 | unsigned int mask = 0; | |
b22ead2a | 1291 | |
ce0fc93a LPC |
1292 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1293 | reg = w->reg; | |
1294 | dapm = w->dapm; | |
b22ead2a MB |
1295 | |
1296 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1297 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1298 | w->power = w->new_power; |
b22ead2a | 1299 | |
de9ba98b LPC |
1300 | mask |= w->mask << w->shift; |
1301 | if (w->power) | |
1302 | value |= w->on_val << w->shift; | |
b22ead2a | 1303 | else |
de9ba98b | 1304 | value |= w->off_val << w->shift; |
b22ead2a | 1305 | |
ce0fc93a | 1306 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1307 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1308 | w->name, reg, value, mask); | |
81628103 | 1309 | |
68f89ad8 | 1310 | /* Check for events */ |
95dd5cd6 LPC |
1311 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1312 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1313 | } |
1314 | ||
1315 | if (reg >= 0) { | |
29376bc7 MB |
1316 | /* Any widget will do, they should all be updating the |
1317 | * same register. | |
1318 | */ | |
29376bc7 | 1319 | |
ce0fc93a | 1320 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1321 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1322 | value, mask, reg, card->pop_time); |
1323 | pop_wait(card->pop_time); | |
ce0fc93a | 1324 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1325 | } |
1326 | ||
81628103 | 1327 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1328 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1329 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1330 | } |
b22ead2a | 1331 | } |
42aa3418 | 1332 | |
b22ead2a MB |
1333 | /* Apply a DAPM power sequence. |
1334 | * | |
1335 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1336 | * order to minimise the number of writes to the device required | |
1337 | * multiple widgets will be updated in a single write where possible. | |
1338 | * Currently anything that requires more than a single write is not | |
1339 | * handled. | |
1340 | */ | |
95dd5cd6 LPC |
1341 | static void dapm_seq_run(struct snd_soc_card *card, |
1342 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1343 | { |
1344 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1345 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1346 | LIST_HEAD(pending); |
1347 | int cur_sort = -1; | |
20e4859d | 1348 | int cur_subseq = -1; |
b22ead2a | 1349 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1350 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1351 | int ret, i; |
828a842f MB |
1352 | int *sort; |
1353 | ||
1354 | if (power_up) | |
1355 | sort = dapm_up_seq; | |
1356 | else | |
1357 | sort = dapm_down_seq; | |
163cac06 | 1358 | |
b22ead2a MB |
1359 | list_for_each_entry_safe(w, n, list, power_list) { |
1360 | ret = 0; | |
1361 | ||
1362 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1363 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1364 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1365 | if (!list_empty(&pending)) |
95dd5cd6 | 1366 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1367 | |
474b62d6 MB |
1368 | if (cur_dapm && cur_dapm->seq_notifier) { |
1369 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1370 | if (sort[i] == cur_sort) | |
1371 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1372 | i, |
1373 | cur_subseq); | |
474b62d6 MB |
1374 | } |
1375 | ||
eb270e98 MB |
1376 | if (cur_dapm && w->dapm != cur_dapm) |
1377 | soc_dapm_async_complete(cur_dapm); | |
1378 | ||
b22ead2a MB |
1379 | INIT_LIST_HEAD(&pending); |
1380 | cur_sort = -1; | |
b0b3e6f8 | 1381 | cur_subseq = INT_MIN; |
b22ead2a | 1382 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1383 | cur_dapm = NULL; |
b22ead2a MB |
1384 | } |
1385 | ||
163cac06 MB |
1386 | switch (w->id) { |
1387 | case snd_soc_dapm_pre: | |
1388 | if (!w->event) | |
b22ead2a MB |
1389 | list_for_each_entry_safe_continue(w, n, list, |
1390 | power_list); | |
163cac06 | 1391 | |
b22ead2a | 1392 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1393 | ret = w->event(w, |
1394 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1395 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1396 | ret = w->event(w, |
1397 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1398 | break; |
1399 | ||
1400 | case snd_soc_dapm_post: | |
1401 | if (!w->event) | |
b22ead2a MB |
1402 | list_for_each_entry_safe_continue(w, n, list, |
1403 | power_list); | |
163cac06 | 1404 | |
b22ead2a | 1405 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1406 | ret = w->event(w, |
1407 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1408 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1409 | ret = w->event(w, |
1410 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1411 | break; |
1412 | ||
b22ead2a | 1413 | default: |
81628103 MB |
1414 | /* Queue it up for application */ |
1415 | cur_sort = sort[w->id]; | |
20e4859d | 1416 | cur_subseq = w->subseq; |
81628103 | 1417 | cur_reg = w->reg; |
7be31be8 | 1418 | cur_dapm = w->dapm; |
81628103 MB |
1419 | list_move(&w->power_list, &pending); |
1420 | break; | |
163cac06 | 1421 | } |
b22ead2a MB |
1422 | |
1423 | if (ret < 0) | |
f7d41ae8 | 1424 | dev_err(w->dapm->dev, |
30a6a1a4 | 1425 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1426 | } |
b22ead2a MB |
1427 | |
1428 | if (!list_empty(&pending)) | |
95dd5cd6 | 1429 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1430 | |
1431 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1432 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1433 | if (sort[i] == cur_sort) | |
1434 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1435 | i, cur_subseq); |
474b62d6 | 1436 | } |
eb270e98 MB |
1437 | |
1438 | list_for_each_entry(d, &card->dapm_list, list) { | |
1439 | soc_dapm_async_complete(d); | |
1440 | } | |
42aa3418 MB |
1441 | } |
1442 | ||
95dd5cd6 | 1443 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1444 | { |
95dd5cd6 | 1445 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1446 | struct snd_soc_dapm_widget_list *wlist; |
1447 | struct snd_soc_dapm_widget *w = NULL; | |
1448 | unsigned int wi; | |
97404f2e MB |
1449 | int ret; |
1450 | ||
57295073 | 1451 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1452 | return; |
1453 | ||
e84357f7 | 1454 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1455 | |
ce6cfaf1 LPC |
1456 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1457 | w = wlist->widgets[wi]; | |
1458 | ||
1459 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1460 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1461 | if (ret != 0) | |
95dd5cd6 | 1462 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1463 | w->name, ret); |
1464 | } | |
97404f2e MB |
1465 | } |
1466 | ||
ce6cfaf1 LPC |
1467 | if (!w) |
1468 | return; | |
1469 | ||
ce0fc93a LPC |
1470 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1471 | update->val); | |
97404f2e | 1472 | if (ret < 0) |
95dd5cd6 | 1473 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1474 | w->name, ret); |
97404f2e | 1475 | |
ce6cfaf1 LPC |
1476 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1477 | w = wlist->widgets[wi]; | |
1478 | ||
1479 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1480 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1481 | if (ret != 0) | |
95dd5cd6 | 1482 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1483 | w->name, ret); |
1484 | } | |
97404f2e MB |
1485 | } |
1486 | } | |
1487 | ||
9d0624a7 MB |
1488 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1489 | * they're changing state. | |
1490 | */ | |
1491 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1492 | { | |
1493 | struct snd_soc_dapm_context *d = data; | |
1494 | int ret; | |
1495 | ||
56fba41f MB |
1496 | /* If we're off and we're not supposed to be go into STANDBY */ |
1497 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1498 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1499 | if (d->dev) |
1500 | pm_runtime_get_sync(d->dev); | |
1501 | ||
9d0624a7 MB |
1502 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1503 | if (ret != 0) | |
1504 | dev_err(d->dev, | |
30a6a1a4 | 1505 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1506 | } |
1507 | ||
ce85a4d7 LPC |
1508 | /* Prepare for a transition to ON or away from ON */ |
1509 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1510 | d->bias_level != SND_SOC_BIAS_ON) || | |
1511 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1512 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1513 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1514 | if (ret != 0) | |
1515 | dev_err(d->dev, | |
30a6a1a4 | 1516 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1517 | } |
1518 | } | |
1519 | ||
1520 | /* Async callback run prior to DAPM sequences - brings to their final | |
1521 | * state. | |
1522 | */ | |
1523 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1524 | { | |
1525 | struct snd_soc_dapm_context *d = data; | |
1526 | int ret; | |
1527 | ||
1528 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1529 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1530 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1531 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1532 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1533 | if (ret != 0) | |
30a6a1a4 | 1534 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1535 | ret); |
1536 | } | |
97404f2e | 1537 | |
9d0624a7 | 1538 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1539 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1540 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1541 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1542 | if (ret != 0) | |
30a6a1a4 LG |
1543 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1544 | ret); | |
f1aac484 MB |
1545 | |
1546 | if (d->dev) | |
fb644e9c | 1547 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1548 | } |
1549 | ||
1550 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1551 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1552 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1553 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1554 | if (ret != 0) | |
30a6a1a4 | 1555 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1556 | ret); |
1557 | } | |
1558 | } | |
97404f2e | 1559 | |
fe4fda5d MB |
1560 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1561 | bool power, bool connect) | |
1562 | { | |
1563 | /* If a connection is being made or broken then that update | |
1564 | * will have marked the peer dirty, otherwise the widgets are | |
1565 | * not connected and this update has no impact. */ | |
1566 | if (!connect) | |
1567 | return; | |
1568 | ||
1569 | /* If the peer is already in the state we're moving to then we | |
1570 | * won't have an impact on it. */ | |
1571 | if (power != peer->power) | |
75c1f891 | 1572 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1573 | } |
1574 | ||
05623c43 MB |
1575 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1576 | struct list_head *up_list, | |
1577 | struct list_head *down_list) | |
1578 | { | |
db432b41 MB |
1579 | struct snd_soc_dapm_path *path; |
1580 | ||
05623c43 MB |
1581 | if (w->power == power) |
1582 | return; | |
1583 | ||
1584 | trace_snd_soc_dapm_widget_power(w, power); | |
1585 | ||
db432b41 | 1586 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1587 | * also. |
db432b41 | 1588 | */ |
7ddd4cd5 LPC |
1589 | list_for_each_entry(path, &w->sources, list_sink) |
1590 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1591 | ||
6dd98b0a LPC |
1592 | /* Supplies can't affect their outputs, only their inputs */ |
1593 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1594 | list_for_each_entry(path, &w->sinks, list_source) |
1595 | dapm_widget_set_peer_power(path->sink, power, | |
1596 | path->connect); | |
db432b41 MB |
1597 | } |
1598 | ||
05623c43 MB |
1599 | if (power) |
1600 | dapm_seq_insert(w, up_list, true); | |
1601 | else | |
1602 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1603 | } |
1604 | ||
7c81beb0 MB |
1605 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1606 | struct list_head *up_list, | |
1607 | struct list_head *down_list) | |
1608 | { | |
7c81beb0 MB |
1609 | int power; |
1610 | ||
1611 | switch (w->id) { | |
1612 | case snd_soc_dapm_pre: | |
1613 | dapm_seq_insert(w, down_list, false); | |
1614 | break; | |
1615 | case snd_soc_dapm_post: | |
1616 | dapm_seq_insert(w, up_list, true); | |
1617 | break; | |
1618 | ||
1619 | default: | |
d805002b | 1620 | power = dapm_widget_power_check(w); |
7c81beb0 | 1621 | |
05623c43 | 1622 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1623 | break; |
1624 | } | |
1625 | } | |
1626 | ||
86dbf2ac LPC |
1627 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1628 | { | |
1629 | if (dapm->idle_bias_off) | |
1630 | return true; | |
1631 | ||
1632 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1633 | case SNDRV_CTL_POWER_D3hot: | |
1634 | case SNDRV_CTL_POWER_D3cold: | |
1635 | return dapm->suspend_bias_off; | |
1636 | default: | |
1637 | break; | |
1638 | } | |
1639 | ||
1640 | return false; | |
1641 | } | |
1642 | ||
2b97eabc RP |
1643 | /* |
1644 | * Scan each dapm widget for complete audio path. | |
1645 | * A complete path is a route that has valid endpoints i.e.:- | |
1646 | * | |
1647 | * o DAC to output pin. | |
1648 | * o Input Pin to ADC. | |
1649 | * o Input pin to Output pin (bypass, sidetone) | |
1650 | * o DAC to ADC (loopback). | |
1651 | */ | |
95dd5cd6 | 1652 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1653 | { |
1654 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1655 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1656 | LIST_HEAD(up_list); |
1657 | LIST_HEAD(down_list); | |
2955b47d | 1658 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1659 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1660 | |
f9fa2b18 MB |
1661 | lockdep_assert_held(&card->dapm_mutex); |
1662 | ||
84e90930 MB |
1663 | trace_snd_soc_dapm_start(card); |
1664 | ||
56fba41f | 1665 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1666 | if (dapm_idle_bias_off(d)) |
497098be MB |
1667 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1668 | else | |
1669 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1670 | } |
7be31be8 | 1671 | |
6c120e19 | 1672 | dapm_reset(card); |
9b8a83b2 | 1673 | |
6d3ddc81 | 1674 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1675 | * lists indicating if they should be powered up or down. We |
1676 | * only check widgets that have been flagged as dirty but note | |
1677 | * that new widgets may be added to the dirty list while we | |
1678 | * iterate. | |
6d3ddc81 | 1679 | */ |
db432b41 | 1680 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1681 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1682 | } |
1683 | ||
f9de6d74 | 1684 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1685 | switch (w->id) { |
1686 | case snd_soc_dapm_pre: | |
1687 | case snd_soc_dapm_post: | |
1688 | /* These widgets always need to be powered */ | |
1689 | break; | |
1690 | default: | |
1691 | list_del_init(&w->dirty); | |
1692 | break; | |
1693 | } | |
db432b41 | 1694 | |
39eb5fd1 | 1695 | if (w->new_power) { |
f9de6d74 MB |
1696 | d = w->dapm; |
1697 | ||
1698 | /* Supplies and micbiases only bring the | |
1699 | * context up to STANDBY as unless something | |
1700 | * else is active and passing audio they | |
afe62367 MB |
1701 | * generally don't require full power. Signal |
1702 | * generators are virtual pins and have no | |
1703 | * power impact themselves. | |
f9de6d74 MB |
1704 | */ |
1705 | switch (w->id) { | |
afe62367 | 1706 | case snd_soc_dapm_siggen: |
da83fea6 | 1707 | case snd_soc_dapm_vmid: |
afe62367 | 1708 | break; |
f9de6d74 | 1709 | case snd_soc_dapm_supply: |
62ea874a | 1710 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1711 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1712 | case snd_soc_dapm_micbias: |
1713 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1714 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1715 | break; | |
1716 | default: | |
1717 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1718 | break; | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | } | |
1723 | ||
85a843c5 MB |
1724 | /* Force all contexts in the card to the same bias state if |
1725 | * they're not ground referenced. | |
1726 | */ | |
56fba41f | 1727 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1728 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1729 | if (d->target_bias_level > bias) |
1730 | bias = d->target_bias_level; | |
52ba67bf | 1731 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1732 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1733 | d->target_bias_level = bias; |
52ba67bf | 1734 | |
de02d078 | 1735 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1736 | |
17282ba4 XX |
1737 | /* Run card bias changes at first */ |
1738 | dapm_pre_sequence_async(&card->dapm, 0); | |
1739 | /* Run other bias changes in parallel */ | |
1740 | list_for_each_entry(d, &card->dapm_list, list) { | |
1741 | if (d != &card->dapm) | |
1742 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1743 | &async_domain); | |
1744 | } | |
9d0624a7 | 1745 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1746 | |
cf1f7c6e | 1747 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1748 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1749 | } |
1750 | ||
cf1f7c6e | 1751 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1752 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1753 | } |
1754 | ||
6d3ddc81 | 1755 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1756 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1757 | |
95dd5cd6 | 1758 | dapm_widget_update(card); |
97404f2e | 1759 | |
6d3ddc81 | 1760 | /* Now power up. */ |
95dd5cd6 | 1761 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1762 | |
9d0624a7 | 1763 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1764 | list_for_each_entry(d, &card->dapm_list, list) { |
1765 | if (d != &card->dapm) | |
1766 | async_schedule_domain(dapm_post_sequence_async, d, | |
1767 | &async_domain); | |
1768 | } | |
9d0624a7 | 1769 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1770 | /* Run card bias changes at last */ |
1771 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1772 | |
8078d87f LG |
1773 | /* do we need to notify any clients that DAPM event is complete */ |
1774 | list_for_each_entry(d, &card->dapm_list, list) { | |
1775 | if (d->stream_event) | |
1776 | d->stream_event(d, event); | |
1777 | } | |
1778 | ||
95dd5cd6 | 1779 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1780 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1781 | pop_wait(card->pop_time); |
cb507e7e | 1782 | |
84e90930 MB |
1783 | trace_snd_soc_dapm_done(card); |
1784 | ||
42aa3418 | 1785 | return 0; |
2b97eabc RP |
1786 | } |
1787 | ||
79fb9387 | 1788 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1789 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1790 | char __user *user_buf, | |
1791 | size_t count, loff_t *ppos) | |
1792 | { | |
1793 | struct snd_soc_dapm_widget *w = file->private_data; | |
1794 | char *buf; | |
1795 | int in, out; | |
1796 | ssize_t ret; | |
1797 | struct snd_soc_dapm_path *p = NULL; | |
1798 | ||
1799 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1800 | if (!buf) | |
1801 | return -ENOMEM; | |
1802 | ||
c1862c8b LPC |
1803 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1804 | if (w->is_supply) { | |
1805 | in = 0; | |
1806 | out = 0; | |
1807 | } else { | |
1808 | in = is_connected_input_ep(w, NULL); | |
1809 | out = is_connected_output_ep(w, NULL); | |
1810 | } | |
79fb9387 | 1811 | |
f13ebada MB |
1812 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1813 | w->name, w->power ? "On" : "Off", | |
1814 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1815 | |
d033c36a MB |
1816 | if (w->reg >= 0) |
1817 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1818 | " - R%d(0x%x) mask 0x%x", |
1819 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1820 | |
1821 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1822 | ||
3eef08ba MB |
1823 | if (w->sname) |
1824 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1825 | w->sname, | |
1826 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1827 | |
1828 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1829 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1830 | continue; |
1831 | ||
79fb9387 MB |
1832 | if (p->connect) |
1833 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1834 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1835 | p->name ? p->name : "static", |
1836 | p->source->name); | |
1837 | } | |
1838 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1839 | if (p->connected && !p->connected(w, p->sink)) |
1840 | continue; | |
1841 | ||
79fb9387 MB |
1842 | if (p->connect) |
1843 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1844 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1845 | p->name ? p->name : "static", |
1846 | p->sink->name); | |
1847 | } | |
1848 | ||
1849 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1850 | ||
1851 | kfree(buf); | |
1852 | return ret; | |
1853 | } | |
1854 | ||
1855 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1856 | .open = simple_open, |
79fb9387 | 1857 | .read = dapm_widget_power_read_file, |
6038f373 | 1858 | .llseek = default_llseek, |
79fb9387 MB |
1859 | }; |
1860 | ||
ef49e4fa MB |
1861 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1862 | size_t count, loff_t *ppos) | |
1863 | { | |
1864 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1865 | char *level; | |
1866 | ||
1867 | switch (dapm->bias_level) { | |
1868 | case SND_SOC_BIAS_ON: | |
1869 | level = "On\n"; | |
1870 | break; | |
1871 | case SND_SOC_BIAS_PREPARE: | |
1872 | level = "Prepare\n"; | |
1873 | break; | |
1874 | case SND_SOC_BIAS_STANDBY: | |
1875 | level = "Standby\n"; | |
1876 | break; | |
1877 | case SND_SOC_BIAS_OFF: | |
1878 | level = "Off\n"; | |
1879 | break; | |
1880 | default: | |
a6ed0608 | 1881 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1882 | level = "Unknown\n"; |
1883 | break; | |
1884 | } | |
1885 | ||
1886 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1887 | strlen(level)); | |
1888 | } | |
1889 | ||
1890 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1891 | .open = simple_open, |
ef49e4fa MB |
1892 | .read = dapm_bias_read_file, |
1893 | .llseek = default_llseek, | |
1894 | }; | |
1895 | ||
8eecaf62 LPC |
1896 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1897 | struct dentry *parent) | |
79fb9387 | 1898 | { |
79fb9387 MB |
1899 | struct dentry *d; |
1900 | ||
8eecaf62 LPC |
1901 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1902 | ||
1903 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1904 | dev_warn(dapm->dev, |
30a6a1a4 | 1905 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1906 | return; |
8eecaf62 | 1907 | } |
79fb9387 | 1908 | |
ef49e4fa MB |
1909 | d = debugfs_create_file("bias_level", 0444, |
1910 | dapm->debugfs_dapm, dapm, | |
1911 | &dapm_bias_fops); | |
1912 | if (!d) | |
1913 | dev_warn(dapm->dev, | |
1914 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1915 | } |
ef49e4fa | 1916 | |
d5d1e0be LPC |
1917 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1918 | { | |
1919 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1920 | struct dentry *d; | |
79fb9387 | 1921 | |
d5d1e0be LPC |
1922 | if (!dapm->debugfs_dapm || !w->name) |
1923 | return; | |
1924 | ||
1925 | d = debugfs_create_file(w->name, 0444, | |
1926 | dapm->debugfs_dapm, w, | |
1927 | &dapm_widget_power_fops); | |
1928 | if (!d) | |
1929 | dev_warn(w->dapm->dev, | |
1930 | "ASoC: Failed to create %s debugfs file\n", | |
1931 | w->name); | |
79fb9387 | 1932 | } |
d5d1e0be | 1933 | |
6c45e126 LPC |
1934 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1935 | { | |
1936 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1937 | } | |
1938 | ||
79fb9387 | 1939 | #else |
8eecaf62 LPC |
1940 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1941 | struct dentry *parent) | |
79fb9387 MB |
1942 | { |
1943 | } | |
d5d1e0be LPC |
1944 | |
1945 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1946 | { | |
1947 | } | |
1948 | ||
6c45e126 LPC |
1949 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1950 | { | |
1951 | } | |
1952 | ||
79fb9387 MB |
1953 | #endif |
1954 | ||
4a201948 LPC |
1955 | /* |
1956 | * soc_dapm_connect_path() - Connects or disconnects a path | |
1957 | * @path: The path to update | |
1958 | * @connect: The new connect state of the path. True if the path is connected, | |
1959 | * false if it is disconneted. | |
1960 | * @reason: The reason why the path changed (for debugging only) | |
1961 | */ | |
1962 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
1963 | bool connect, const char *reason) | |
1964 | { | |
1965 | if (path->connect == connect) | |
1966 | return; | |
1967 | ||
1968 | path->connect = connect; | |
1969 | dapm_mark_dirty(path->source, reason); | |
1970 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 1971 | dapm_path_invalidate(path); |
4a201948 LPC |
1972 | } |
1973 | ||
2b97eabc | 1974 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 1975 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 1976 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1977 | { |
1978 | struct snd_soc_dapm_path *path; | |
1979 | int found = 0; | |
4a201948 | 1980 | bool connect; |
2b97eabc | 1981 | |
f9fa2b18 MB |
1982 | lockdep_assert_held(&card->dapm_mutex); |
1983 | ||
2b97eabc | 1984 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 1985 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
1986 | found = 1; |
1987 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
1988 | if (!(strcmp(path->name, e->texts[mux]))) |
1989 | connect = true; | |
1990 | else | |
1991 | connect = false; | |
1992 | ||
1993 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
1994 | } |
1995 | ||
ce6cfaf1 | 1996 | if (found) |
95dd5cd6 | 1997 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1998 | |
618dae11 | 1999 | return found; |
2b97eabc | 2000 | } |
4edbb345 | 2001 | |
ce6cfaf1 | 2002 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2003 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2004 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2005 | { |
ce6cfaf1 | 2006 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2007 | int ret; |
2008 | ||
3cd04343 | 2009 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2010 | card->update = update; |
95dd5cd6 | 2011 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2012 | card->update = NULL; |
4edbb345 | 2013 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2014 | if (ret > 0) |
c3f48ae6 | 2015 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2016 | return ret; |
2017 | } | |
40f02cd9 | 2018 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2019 | |
1b075e3f | 2020 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2021 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2022 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2023 | { |
2024 | struct snd_soc_dapm_path *path; | |
2025 | int found = 0; | |
2026 | ||
f9fa2b18 MB |
2027 | lockdep_assert_held(&card->dapm_mutex); |
2028 | ||
2b97eabc | 2029 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2030 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2031 | found = 1; |
4a201948 | 2032 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2033 | } |
2034 | ||
ce6cfaf1 | 2035 | if (found) |
95dd5cd6 | 2036 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2037 | |
618dae11 | 2038 | return found; |
2b97eabc | 2039 | } |
4edbb345 | 2040 | |
ce6cfaf1 | 2041 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2042 | struct snd_kcontrol *kcontrol, int connect, |
2043 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2044 | { |
ce6cfaf1 | 2045 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2046 | int ret; |
2047 | ||
3cd04343 | 2048 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2049 | card->update = update; |
95dd5cd6 | 2050 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2051 | card->update = NULL; |
4edbb345 | 2052 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2053 | if (ret > 0) |
c3f48ae6 | 2054 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2055 | return ret; |
2056 | } | |
40f02cd9 | 2057 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2058 | |
44ba2641 | 2059 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2060 | { |
2b97eabc RP |
2061 | struct snd_soc_dapm_widget *w; |
2062 | int count = 0; | |
2063 | char *state = "not set"; | |
2064 | ||
00200107 | 2065 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2066 | if (w->dapm != &codec->dapm) |
2067 | continue; | |
2b97eabc RP |
2068 | |
2069 | /* only display widgets that burnm power */ | |
2070 | switch (w->id) { | |
2071 | case snd_soc_dapm_hp: | |
2072 | case snd_soc_dapm_mic: | |
2073 | case snd_soc_dapm_spk: | |
2074 | case snd_soc_dapm_line: | |
2075 | case snd_soc_dapm_micbias: | |
2076 | case snd_soc_dapm_dac: | |
2077 | case snd_soc_dapm_adc: | |
2078 | case snd_soc_dapm_pga: | |
d88429a6 | 2079 | case snd_soc_dapm_out_drv: |
2b97eabc | 2080 | case snd_soc_dapm_mixer: |
ca9c1aae | 2081 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2082 | case snd_soc_dapm_supply: |
62ea874a | 2083 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2084 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2085 | if (w->name) |
2086 | count += sprintf(buf + count, "%s: %s\n", | |
2087 | w->name, w->power ? "On":"Off"); | |
2088 | break; | |
2089 | default: | |
2090 | break; | |
2091 | } | |
2092 | } | |
2093 | ||
ce6120cc | 2094 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2095 | case SND_SOC_BIAS_ON: |
2096 | state = "On"; | |
2b97eabc | 2097 | break; |
0be9898a MB |
2098 | case SND_SOC_BIAS_PREPARE: |
2099 | state = "Prepare"; | |
2b97eabc | 2100 | break; |
0be9898a MB |
2101 | case SND_SOC_BIAS_STANDBY: |
2102 | state = "Standby"; | |
2b97eabc | 2103 | break; |
0be9898a MB |
2104 | case SND_SOC_BIAS_OFF: |
2105 | state = "Off"; | |
2b97eabc RP |
2106 | break; |
2107 | } | |
2108 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2109 | ||
2110 | return count; | |
2111 | } | |
2112 | ||
44ba2641 BC |
2113 | /* show dapm widget status in sys fs */ |
2114 | static ssize_t dapm_widget_show(struct device *dev, | |
2115 | struct device_attribute *attr, char *buf) | |
2116 | { | |
2117 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2118 | int i, count = 0; | |
2119 | ||
2120 | for (i = 0; i < rtd->num_codecs; i++) { | |
2121 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2122 | count += dapm_widget_show_codec(codec, buf + count); | |
2123 | } | |
2124 | ||
2125 | return count; | |
2126 | } | |
2127 | ||
2b97eabc RP |
2128 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2129 | ||
2130 | int snd_soc_dapm_sys_add(struct device *dev) | |
2131 | { | |
12ef193d | 2132 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2133 | } |
2134 | ||
2135 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2136 | { | |
aef90843 | 2137 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2138 | } |
2139 | ||
8872293f LPC |
2140 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2141 | { | |
2142 | list_del(&path->list_sink); | |
2143 | list_del(&path->list_source); | |
5106b92f | 2144 | list_del(&path->list_kcontrol); |
8872293f | 2145 | list_del(&path->list); |
8872293f LPC |
2146 | kfree(path); |
2147 | } | |
2148 | ||
2b97eabc | 2149 | /* free all dapm widgets and resources */ |
ce6120cc | 2150 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2151 | { |
2152 | struct snd_soc_dapm_widget *w, *next_w; | |
2153 | struct snd_soc_dapm_path *p, *next_p; | |
2154 | ||
97c866de JN |
2155 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2156 | if (w->dapm != dapm) | |
2157 | continue; | |
2b97eabc | 2158 | list_del(&w->list); |
8ddab3f5 JN |
2159 | /* |
2160 | * remove source and sink paths associated to this widget. | |
2161 | * While removing the path, remove reference to it from both | |
2162 | * source and sink widgets so that path is removed only once. | |
2163 | */ | |
8872293f LPC |
2164 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2165 | dapm_free_path(p); | |
2166 | ||
2167 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2168 | dapm_free_path(p); | |
2169 | ||
fad59888 | 2170 | kfree(w->kcontrols); |
ead9b919 | 2171 | kfree(w->name); |
2b97eabc RP |
2172 | kfree(w); |
2173 | } | |
2b97eabc RP |
2174 | } |
2175 | ||
91a5fca4 LPC |
2176 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2177 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2178 | bool search_other_contexts) | |
a5302181 LG |
2179 | { |
2180 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2181 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2182 | |
97c866de | 2183 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2184 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2185 | if (w->dapm == dapm) |
2186 | return w; | |
2187 | else | |
2188 | fallback = w; | |
a5302181 LG |
2189 | } |
2190 | } | |
2191 | ||
91a5fca4 LPC |
2192 | if (search_other_contexts) |
2193 | return fallback; | |
2194 | ||
2195 | return NULL; | |
2196 | } | |
2197 | ||
2198 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2199 | const char *pin, int status) | |
2200 | { | |
2201 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2202 | ||
f9fa2b18 MB |
2203 | dapm_assert_locked(dapm); |
2204 | ||
91a5fca4 | 2205 | if (!w) { |
30a6a1a4 | 2206 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2207 | return -EINVAL; |
0d86733c MB |
2208 | } |
2209 | ||
92a99ea4 | 2210 | if (w->connected != status) { |
1a8b2d9d | 2211 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2212 | dapm_widget_invalidate_input_paths(w); |
2213 | dapm_widget_invalidate_output_paths(w); | |
2214 | } | |
1a8b2d9d | 2215 | |
91a5fca4 LPC |
2216 | w->connected = status; |
2217 | if (status == 0) | |
2218 | w->force = 0; | |
2219 | ||
2220 | return 0; | |
a5302181 LG |
2221 | } |
2222 | ||
2b97eabc | 2223 | /** |
3eb29dfb | 2224 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2225 | * @dapm: DAPM context |
2b97eabc RP |
2226 | * |
2227 | * Walks all dapm audio paths and powers widgets according to their | |
2228 | * stream or path usage. | |
2229 | * | |
3eb29dfb CK |
2230 | * Requires external locking. |
2231 | * | |
2b97eabc RP |
2232 | * Returns 0 for success. |
2233 | */ | |
3eb29dfb | 2234 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2235 | { |
4f4c0072 MB |
2236 | /* |
2237 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2238 | * silly DAPM runs during card startup. | |
2239 | */ | |
2240 | if (!dapm->card || !dapm->card->instantiated) | |
2241 | return 0; | |
2242 | ||
3eb29dfb CK |
2243 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2244 | } | |
2245 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2246 | ||
2247 | /** | |
2248 | * snd_soc_dapm_sync - scan and power dapm paths | |
2249 | * @dapm: DAPM context | |
2250 | * | |
2251 | * Walks all dapm audio paths and powers widgets according to their | |
2252 | * stream or path usage. | |
2253 | * | |
2254 | * Returns 0 for success. | |
2255 | */ | |
2256 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2257 | { | |
2258 | int ret; | |
2259 | ||
3cd04343 | 2260 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2261 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2262 | mutex_unlock(&dapm->card->dapm_mutex); |
2263 | return ret; | |
2b97eabc | 2264 | } |
a5302181 | 2265 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2266 | |
6dd98b0a LPC |
2267 | /* |
2268 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2269 | * @w: The widget for which to update the flags | |
2270 | * | |
2271 | * Some widgets have a dynamic category which depends on which neighbors they | |
2272 | * are connected to. This function update the category for these widgets. | |
2273 | * | |
2274 | * This function must be called whenever a path is added or removed to a widget. | |
2275 | */ | |
2276 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2277 | { | |
2278 | struct snd_soc_dapm_path *p; | |
2279 | ||
2280 | switch (w->id) { | |
2281 | case snd_soc_dapm_input: | |
2282 | w->is_source = 1; | |
2283 | list_for_each_entry(p, &w->sources, list_sink) { | |
2284 | if (p->source->id == snd_soc_dapm_micbias || | |
2285 | p->source->id == snd_soc_dapm_mic || | |
2286 | p->source->id == snd_soc_dapm_line || | |
2287 | p->source->id == snd_soc_dapm_output) { | |
2288 | w->is_source = 0; | |
2289 | break; | |
2290 | } | |
2291 | } | |
2292 | break; | |
2293 | case snd_soc_dapm_output: | |
2294 | w->is_sink = 1; | |
2295 | list_for_each_entry(p, &w->sinks, list_source) { | |
2296 | if (p->sink->id == snd_soc_dapm_spk || | |
2297 | p->sink->id == snd_soc_dapm_hp || | |
2298 | p->sink->id == snd_soc_dapm_line || | |
2299 | p->sink->id == snd_soc_dapm_input) { | |
2300 | w->is_sink = 0; | |
2301 | break; | |
2302 | } | |
2303 | } | |
2304 | break; | |
2305 | case snd_soc_dapm_line: | |
2306 | w->is_sink = !list_empty(&w->sources); | |
2307 | w->is_source = !list_empty(&w->sinks); | |
2308 | break; | |
2309 | default: | |
2310 | break; | |
2311 | } | |
2312 | } | |
2313 | ||
2553628e LPC |
2314 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2315 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2316 | const char *control, | |
2317 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2318 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2319 | { |
2320 | struct snd_soc_dapm_path *path; | |
2553628e | 2321 | int ret; |
2b97eabc | 2322 | |
e409dfbf LPC |
2323 | if (wsink->is_supply && !wsource->is_supply) { |
2324 | dev_err(dapm->dev, | |
2325 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2326 | wsource->name, wsink->name); | |
2327 | return -EINVAL; | |
2328 | } | |
2329 | ||
2330 | if (connected && !wsource->is_supply) { | |
2331 | dev_err(dapm->dev, | |
2332 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2333 | wsource->name, wsink->name); | |
2334 | return -EINVAL; | |
2335 | } | |
2336 | ||
2337 | if (wsource->is_supply && control) { | |
2338 | dev_err(dapm->dev, | |
2339 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2340 | wsource->name, control, wsink->name); | |
2341 | return -EINVAL; | |
2342 | } | |
2343 | ||
2b97eabc RP |
2344 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2345 | if (!path) | |
2346 | return -ENOMEM; | |
2347 | ||
2348 | path->source = wsource; | |
2349 | path->sink = wsink; | |
2553628e | 2350 | path->connected = connected; |
2b97eabc | 2351 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2352 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2353 | INIT_LIST_HEAD(&path->list_source); |
2354 | INIT_LIST_HEAD(&path->list_sink); | |
2355 | ||
c1862c8b LPC |
2356 | if (wsource->is_supply || wsink->is_supply) |
2357 | path->is_supply = 1; | |
2358 | ||
2b97eabc RP |
2359 | /* connect static paths */ |
2360 | if (control == NULL) { | |
2b97eabc | 2361 | path->connect = 1; |
5fe5b767 LPC |
2362 | } else { |
2363 | /* connect dynamic paths */ | |
2364 | switch (wsink->id) { | |
2365 | case snd_soc_dapm_mux: | |
2366 | ret = dapm_connect_mux(dapm, path, control); | |
2367 | if (ret != 0) | |
2368 | goto err; | |
2369 | break; | |
2370 | case snd_soc_dapm_switch: | |
2371 | case snd_soc_dapm_mixer: | |
2372 | case snd_soc_dapm_mixer_named_ctl: | |
2373 | ret = dapm_connect_mixer(dapm, path, control); | |
2374 | if (ret != 0) | |
2375 | goto err; | |
2376 | break; | |
2377 | default: | |
2378 | dev_err(dapm->dev, | |
2379 | "Control not supported for path %s -> [%s] -> %s\n", | |
2380 | wsource->name, control, wsink->name); | |
2381 | ret = -EINVAL; | |
2b97eabc | 2382 | goto err; |
5fe5b767 | 2383 | } |
2b97eabc | 2384 | } |
fabd0384 | 2385 | |
5fe5b767 LPC |
2386 | list_add(&path->list, &dapm->card->paths); |
2387 | list_add(&path->list_sink, &wsink->sources); | |
2388 | list_add(&path->list_source, &wsource->sinks); | |
2389 | ||
6dd98b0a LPC |
2390 | dapm_update_widget_flags(wsource); |
2391 | dapm_update_widget_flags(wsink); | |
2392 | ||
5fe5b767 LPC |
2393 | dapm_mark_dirty(wsource, "Route added"); |
2394 | dapm_mark_dirty(wsink, "Route added"); | |
2395 | ||
92a99ea4 LPC |
2396 | if (dapm->card->instantiated && path->connect) |
2397 | dapm_path_invalidate(path); | |
2398 | ||
2b97eabc | 2399 | return 0; |
2553628e LPC |
2400 | err: |
2401 | kfree(path); | |
2402 | return ret; | |
2403 | } | |
2b97eabc | 2404 | |
2553628e | 2405 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2406 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2407 | { |
2408 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2409 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2410 | const char *sink; | |
2411 | const char *source; | |
2412 | char prefixed_sink[80]; | |
2413 | char prefixed_source[80]; | |
94f99c87 | 2414 | const char *prefix; |
2553628e LPC |
2415 | int ret; |
2416 | ||
94f99c87 LPC |
2417 | prefix = soc_dapm_prefix(dapm); |
2418 | if (prefix) { | |
2553628e | 2419 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2420 | prefix, route->sink); |
2553628e LPC |
2421 | sink = prefixed_sink; |
2422 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2423 | prefix, route->source); |
2553628e LPC |
2424 | source = prefixed_source; |
2425 | } else { | |
2426 | sink = route->sink; | |
2427 | source = route->source; | |
2428 | } | |
2429 | ||
2430 | /* | |
2431 | * find src and dest widgets over all widgets but favor a widget from | |
2432 | * current DAPM context | |
2433 | */ | |
2434 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2435 | if (!wsink && !(strcmp(w->name, sink))) { | |
2436 | wtsink = w; | |
2437 | if (w->dapm == dapm) | |
2438 | wsink = w; | |
2439 | continue; | |
2440 | } | |
2441 | if (!wsource && !(strcmp(w->name, source))) { | |
2442 | wtsource = w; | |
2443 | if (w->dapm == dapm) | |
2444 | wsource = w; | |
2445 | } | |
2446 | } | |
2447 | /* use widget from another DAPM context if not found from this */ | |
2448 | if (!wsink) | |
2449 | wsink = wtsink; | |
2450 | if (!wsource) | |
2451 | wsource = wtsource; | |
2452 | ||
2453 | if (wsource == NULL) { | |
2454 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2455 | route->source); | |
2456 | return -ENODEV; | |
2457 | } | |
2458 | if (wsink == NULL) { | |
2459 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2460 | route->sink); | |
2461 | return -ENODEV; | |
2462 | } | |
2463 | ||
2464 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2465 | route->connected); | |
2466 | if (ret) | |
2467 | goto err; | |
2468 | ||
2469 | return 0; | |
2b97eabc | 2470 | err: |
30a6a1a4 | 2471 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2472 | source, route->control, sink); |
2b97eabc RP |
2473 | return ret; |
2474 | } | |
105f1c28 | 2475 | |
efcc3c61 MB |
2476 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2477 | const struct snd_soc_dapm_route *route) | |
2478 | { | |
6dd98b0a | 2479 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2480 | struct snd_soc_dapm_path *path, *p; |
2481 | const char *sink; | |
2482 | const char *source; | |
2483 | char prefixed_sink[80]; | |
2484 | char prefixed_source[80]; | |
94f99c87 | 2485 | const char *prefix; |
efcc3c61 MB |
2486 | |
2487 | if (route->control) { | |
2488 | dev_err(dapm->dev, | |
30a6a1a4 | 2489 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2490 | return -EINVAL; |
2491 | } | |
2492 | ||
94f99c87 LPC |
2493 | prefix = soc_dapm_prefix(dapm); |
2494 | if (prefix) { | |
efcc3c61 | 2495 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2496 | prefix, route->sink); |
efcc3c61 MB |
2497 | sink = prefixed_sink; |
2498 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2499 | prefix, route->source); |
efcc3c61 MB |
2500 | source = prefixed_source; |
2501 | } else { | |
2502 | sink = route->sink; | |
2503 | source = route->source; | |
2504 | } | |
2505 | ||
2506 | path = NULL; | |
2507 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2508 | if (strcmp(p->source->name, source) != 0) | |
2509 | continue; | |
2510 | if (strcmp(p->sink->name, sink) != 0) | |
2511 | continue; | |
2512 | path = p; | |
2513 | break; | |
2514 | } | |
2515 | ||
2516 | if (path) { | |
6dd98b0a LPC |
2517 | wsource = path->source; |
2518 | wsink = path->sink; | |
2519 | ||
2520 | dapm_mark_dirty(wsource, "Route removed"); | |
2521 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2522 | if (path->connect) |
2523 | dapm_path_invalidate(path); | |
efcc3c61 | 2524 | |
8872293f | 2525 | dapm_free_path(path); |
6dd98b0a LPC |
2526 | |
2527 | /* Update any path related flags */ | |
2528 | dapm_update_widget_flags(wsource); | |
2529 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2530 | } else { |
30a6a1a4 | 2531 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2532 | source, sink); |
2533 | } | |
2534 | ||
2535 | return 0; | |
2536 | } | |
2537 | ||
105f1c28 MB |
2538 | /** |
2539 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2540 | * @dapm: DAPM context |
105f1c28 MB |
2541 | * @route: audio routes |
2542 | * @num: number of routes | |
2543 | * | |
2544 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2545 | * the widget receiving the audio signal, whilst the source is the sender | |
2546 | * of the audio signal. | |
2547 | * | |
2548 | * Returns 0 for success else error. On error all resources can be freed | |
2549 | * with a call to snd_soc_card_free(). | |
2550 | */ | |
ce6120cc | 2551 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2552 | const struct snd_soc_dapm_route *route, int num) |
2553 | { | |
62d4a4b9 | 2554 | int i, r, ret = 0; |
105f1c28 | 2555 | |
a73fb2df | 2556 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2557 | for (i = 0; i < num; i++) { |
a4e9154c | 2558 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2559 | if (r < 0) { |
30a6a1a4 LG |
2560 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2561 | route->source, | |
2562 | route->control ? route->control : "direct", | |
2563 | route->sink); | |
62d4a4b9 | 2564 | ret = r; |
105f1c28 MB |
2565 | } |
2566 | route++; | |
2567 | } | |
a73fb2df | 2568 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2569 | |
60884c27 | 2570 | return ret; |
105f1c28 MB |
2571 | } |
2572 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2573 | ||
efcc3c61 MB |
2574 | /** |
2575 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2576 | * @dapm: DAPM context | |
2577 | * @route: audio routes | |
2578 | * @num: number of routes | |
2579 | * | |
2580 | * Removes routes from the DAPM context. | |
2581 | */ | |
2582 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2583 | const struct snd_soc_dapm_route *route, int num) | |
2584 | { | |
2585 | int i, ret = 0; | |
2586 | ||
2587 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2588 | for (i = 0; i < num; i++) { | |
2589 | snd_soc_dapm_del_route(dapm, route); | |
2590 | route++; | |
2591 | } | |
2592 | mutex_unlock(&dapm->card->dapm_mutex); | |
2593 | ||
2594 | return ret; | |
2595 | } | |
2596 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2597 | ||
bf3a9e13 MB |
2598 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2599 | const struct snd_soc_dapm_route *route) | |
2600 | { | |
2601 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2602 | route->source, | |
2603 | true); | |
2604 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2605 | route->sink, | |
2606 | true); | |
2607 | struct snd_soc_dapm_path *path; | |
2608 | int count = 0; | |
2609 | ||
2610 | if (!source) { | |
30a6a1a4 | 2611 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2612 | route->source); |
2613 | return -ENODEV; | |
2614 | } | |
2615 | ||
2616 | if (!sink) { | |
30a6a1a4 | 2617 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2618 | route->sink); |
2619 | return -ENODEV; | |
2620 | } | |
2621 | ||
2622 | if (route->control || route->connected) | |
30a6a1a4 | 2623 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2624 | route->source, route->sink); |
2625 | ||
2626 | list_for_each_entry(path, &source->sinks, list_source) { | |
2627 | if (path->sink == sink) { | |
2628 | path->weak = 1; | |
2629 | count++; | |
2630 | } | |
2631 | } | |
2632 | ||
2633 | if (count == 0) | |
30a6a1a4 | 2634 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2635 | route->source, route->sink); |
2636 | if (count > 1) | |
30a6a1a4 | 2637 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2638 | count, route->source, route->sink); |
2639 | ||
2640 | return 0; | |
2641 | } | |
2642 | ||
2643 | /** | |
2644 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2645 | * @dapm: DAPM context | |
2646 | * @route: audio routes | |
2647 | * @num: number of routes | |
2648 | * | |
2649 | * Mark existing routes matching those specified in the passed array | |
2650 | * as being weak, meaning that they are ignored for the purpose of | |
2651 | * power decisions. The main intended use case is for sidetone paths | |
2652 | * which couple audio between other independent paths if they are both | |
2653 | * active in order to make the combination work better at the user | |
2654 | * level but which aren't intended to be "used". | |
2655 | * | |
2656 | * Note that CODEC drivers should not use this as sidetone type paths | |
2657 | * can frequently also be used as bypass paths. | |
2658 | */ | |
2659 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2660 | const struct snd_soc_dapm_route *route, int num) | |
2661 | { | |
2662 | int i, err; | |
2663 | int ret = 0; | |
2664 | ||
a73fb2df | 2665 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2666 | for (i = 0; i < num; i++) { |
2667 | err = snd_soc_dapm_weak_route(dapm, route); | |
2668 | if (err) | |
2669 | ret = err; | |
2670 | route++; | |
2671 | } | |
a73fb2df | 2672 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2673 | |
2674 | return ret; | |
2675 | } | |
2676 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2677 | ||
2b97eabc RP |
2678 | /** |
2679 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2680 | * @dapm: DAPM context |
2b97eabc RP |
2681 | * |
2682 | * Checks the codec for any new dapm widgets and creates them if found. | |
2683 | * | |
2684 | * Returns 0 for success. | |
2685 | */ | |
824ef826 | 2686 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2687 | { |
2688 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2689 | unsigned int val; |
2b97eabc | 2690 | |
95dd5cd6 | 2691 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2692 | |
95dd5cd6 | 2693 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2694 | { |
2695 | if (w->new) | |
2696 | continue; | |
2697 | ||
fad59888 SW |
2698 | if (w->num_kcontrols) { |
2699 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2700 | sizeof(struct snd_kcontrol *), | |
2701 | GFP_KERNEL); | |
a73fb2df | 2702 | if (!w->kcontrols) { |
95dd5cd6 | 2703 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2704 | return -ENOMEM; |
a73fb2df | 2705 | } |
fad59888 SW |
2706 | } |
2707 | ||
2b97eabc RP |
2708 | switch(w->id) { |
2709 | case snd_soc_dapm_switch: | |
2710 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2711 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2712 | dapm_new_mixer(w); |
2b97eabc RP |
2713 | break; |
2714 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2715 | dapm_new_mux(w); |
2b97eabc | 2716 | break; |
2b97eabc | 2717 | case snd_soc_dapm_pga: |
d88429a6 | 2718 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2719 | dapm_new_pga(w); |
2b97eabc | 2720 | break; |
7ca3a18b | 2721 | default: |
2b97eabc RP |
2722 | break; |
2723 | } | |
b66a70d5 MB |
2724 | |
2725 | /* Read the initial power state from the device */ | |
2726 | if (w->reg >= 0) { | |
ce0fc93a | 2727 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2728 | val = val >> w->shift; |
de9ba98b LPC |
2729 | val &= w->mask; |
2730 | if (val == w->on_val) | |
b66a70d5 MB |
2731 | w->power = 1; |
2732 | } | |
2733 | ||
2b97eabc | 2734 | w->new = 1; |
d5d1e0be | 2735 | |
7508b12a | 2736 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2737 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2738 | } |
2739 | ||
95dd5cd6 LPC |
2740 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2741 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2742 | return 0; |
2743 | } | |
2744 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2745 | ||
2746 | /** | |
2747 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2748 | * @kcontrol: mixer control | |
ac11a2b3 | 2749 | * @ucontrol: control element information |
2b97eabc RP |
2750 | * |
2751 | * Callback to get the value of a dapm mixer control. | |
2752 | * | |
2753 | * Returns 0 for success. | |
2754 | */ | |
2755 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2756 | struct snd_ctl_elem_value *ucontrol) | |
2757 | { | |
ce0fc93a LPC |
2758 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2759 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2760 | struct soc_mixer_control *mc = |
2761 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2762 | int reg = mc->reg; |
815ecf8d | 2763 | unsigned int shift = mc->shift; |
4eaa9819 | 2764 | int max = mc->max; |
815ecf8d | 2765 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2766 | unsigned int invert = mc->invert; |
57295073 | 2767 | unsigned int val; |
ce0fc93a | 2768 | int ret = 0; |
da602ab8 BT |
2769 | |
2770 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2771 | dev_warn(dapm->dev, |
30a6a1a4 | 2772 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2773 | kcontrol->id.name); |
2b97eabc | 2774 | |
57295073 | 2775 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2776 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2777 | ret = soc_dapm_read(dapm, reg, &val); | |
2778 | val = (val >> shift) & mask; | |
2779 | } else { | |
57295073 | 2780 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2781 | } |
57295073 LPC |
2782 | mutex_unlock(&card->dapm_mutex); |
2783 | ||
da602ab8 | 2784 | if (invert) |
57295073 LPC |
2785 | ucontrol->value.integer.value[0] = max - val; |
2786 | else | |
2787 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2788 | |
ce0fc93a | 2789 | return ret; |
2b97eabc RP |
2790 | } |
2791 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2792 | ||
2793 | /** | |
2794 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2795 | * @kcontrol: mixer control | |
ac11a2b3 | 2796 | * @ucontrol: control element information |
2b97eabc RP |
2797 | * |
2798 | * Callback to set the value of a dapm mixer control. | |
2799 | * | |
2800 | * Returns 0 for success. | |
2801 | */ | |
2802 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2803 | struct snd_ctl_elem_value *ucontrol) | |
2804 | { | |
ce0fc93a LPC |
2805 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2806 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2807 | struct soc_mixer_control *mc = |
2808 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2809 | int reg = mc->reg; |
815ecf8d | 2810 | unsigned int shift = mc->shift; |
4eaa9819 | 2811 | int max = mc->max; |
815ecf8d JS |
2812 | unsigned int mask = (1 << fls(max)) - 1; |
2813 | unsigned int invert = mc->invert; | |
e9cf7049 | 2814 | unsigned int val; |
18626c7e | 2815 | int connect, change, reg_change = 0; |
97404f2e | 2816 | struct snd_soc_dapm_update update; |
52765976 | 2817 | int ret = 0; |
2b97eabc | 2818 | |
da602ab8 | 2819 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 2820 | dev_warn(dapm->dev, |
30a6a1a4 | 2821 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2822 | kcontrol->id.name); |
2823 | ||
2b97eabc | 2824 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2825 | connect = !!val; |
2b97eabc RP |
2826 | |
2827 | if (invert) | |
a7a4ac86 | 2828 | val = max - val; |
2b97eabc | 2829 | |
3cd04343 | 2830 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2831 | |
249ce138 | 2832 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2833 | |
18626c7e JN |
2834 | if (reg != SND_SOC_NOPM) { |
2835 | mask = mask << shift; | |
2836 | val = val << shift; | |
2837 | ||
ce0fc93a | 2838 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
2839 | } |
2840 | ||
2841 | if (change || reg_change) { | |
2842 | if (reg_change) { | |
2843 | update.kcontrol = kcontrol; | |
2844 | update.reg = reg; | |
2845 | update.mask = mask; | |
2846 | update.val = val; | |
2847 | card->update = &update; | |
249ce138 | 2848 | } |
18626c7e | 2849 | change |= reg_change; |
97404f2e | 2850 | |
52765976 | 2851 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2852 | |
564c6504 | 2853 | card->update = NULL; |
283375ce MB |
2854 | } |
2855 | ||
a73fb2df | 2856 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2857 | |
2858 | if (ret > 0) | |
2859 | soc_dpcm_runtime_update(card); | |
2860 | ||
56a67834 | 2861 | return change; |
2b97eabc RP |
2862 | } |
2863 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2864 | ||
2865 | /** | |
2866 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2867 | * @kcontrol: mixer control | |
ac11a2b3 | 2868 | * @ucontrol: control element information |
2b97eabc RP |
2869 | * |
2870 | * Callback to get the value of a dapm enumerated double mixer control. | |
2871 | * | |
2872 | * Returns 0 for success. | |
2873 | */ | |
2874 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2875 | struct snd_ctl_elem_value *ucontrol) | |
2876 | { | |
ce0fc93a | 2877 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2b97eabc | 2878 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2879 | unsigned int reg_val, val; |
52765976 | 2880 | |
69128316 GU |
2881 | if (e->reg != SND_SOC_NOPM) { |
2882 | int ret = soc_dapm_read(dapm, e->reg, ®_val); | |
2883 | if (ret) | |
2884 | return ret; | |
2885 | } else { | |
236aaa68 | 2886 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 2887 | } |
2e72f8e3 | 2888 | |
2e72f8e3 | 2889 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2890 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2891 | if (e->shift_l != e->shift_r) { |
2892 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2893 | val = snd_soc_enum_val_to_item(e, val); |
2894 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2895 | } |
2896 | ||
69128316 | 2897 | return 0; |
2e72f8e3 | 2898 | } |
2b97eabc | 2899 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2900 | |
2901 | /** | |
2b97eabc | 2902 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2903 | * @kcontrol: mixer control |
2904 | * @ucontrol: control element information | |
2905 | * | |
2b97eabc | 2906 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2907 | * |
2908 | * Returns 0 for success. | |
2909 | */ | |
2b97eabc | 2910 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2911 | struct snd_ctl_elem_value *ucontrol) |
2912 | { | |
ce0fc93a LPC |
2913 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2914 | struct snd_soc_card *card = dapm->card; | |
74155556 | 2915 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2916 | unsigned int *item = ucontrol->value.enumerated.item; |
2917 | unsigned int val, change; | |
46f5822f | 2918 | unsigned int mask; |
97404f2e | 2919 | struct snd_soc_dapm_update update; |
52765976 | 2920 | int ret = 0; |
2e72f8e3 | 2921 | |
3727b496 | 2922 | if (item[0] >= e->items) |
2e72f8e3 | 2923 | return -EINVAL; |
3727b496 LPC |
2924 | |
2925 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2926 | mask = e->mask << e->shift_l; |
2927 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2928 | if (item[1] > e->items) |
2e72f8e3 | 2929 | return -EINVAL; |
3727b496 | 2930 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2931 | mask |= e->mask << e->shift_r; |
2932 | } | |
2933 | ||
3cd04343 | 2934 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2935 | |
236aaa68 | 2936 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2937 | change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 LPC |
2938 | else |
2939 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2940 | ||
fafd2176 | 2941 | if (change) { |
236aaa68 LPC |
2942 | if (e->reg != SND_SOC_NOPM) { |
2943 | update.kcontrol = kcontrol; | |
2944 | update.reg = e->reg; | |
2945 | update.mask = mask; | |
2946 | update.val = val; | |
2947 | card->update = &update; | |
2948 | } | |
1642e3d4 | 2949 | |
3727b496 | 2950 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 2951 | |
564c6504 | 2952 | card->update = NULL; |
fafd2176 | 2953 | } |
2e72f8e3 | 2954 | |
a73fb2df | 2955 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2956 | |
2957 | if (ret > 0) | |
2958 | soc_dpcm_runtime_update(card); | |
2959 | ||
97404f2e | 2960 | return change; |
2e72f8e3 | 2961 | } |
2b97eabc | 2962 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 2963 | |
8b37dbd2 MB |
2964 | /** |
2965 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2966 | * | |
2967 | * @kcontrol: mixer control | |
2968 | * @uinfo: control element information | |
2969 | * | |
2970 | * Callback to provide information about a pin switch control. | |
2971 | */ | |
2972 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2973 | struct snd_ctl_elem_info *uinfo) | |
2974 | { | |
2975 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2976 | uinfo->count = 1; | |
2977 | uinfo->value.integer.min = 0; | |
2978 | uinfo->value.integer.max = 1; | |
2979 | ||
2980 | return 0; | |
2981 | } | |
2982 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2983 | ||
2984 | /** | |
2985 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2986 | * | |
2987 | * @kcontrol: mixer control | |
2988 | * @ucontrol: Value | |
2989 | */ | |
2990 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2991 | struct snd_ctl_elem_value *ucontrol) | |
2992 | { | |
48a8c394 | 2993 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2994 | const char *pin = (const char *)kcontrol->private_value; |
2995 | ||
3cd04343 | 2996 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2997 | |
2998 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2999 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3000 | |
a73fb2df | 3001 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3002 | |
3003 | return 0; | |
3004 | } | |
3005 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3006 | ||
3007 | /** | |
3008 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3009 | * | |
3010 | * @kcontrol: mixer control | |
3011 | * @ucontrol: Value | |
3012 | */ | |
3013 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3014 | struct snd_ctl_elem_value *ucontrol) | |
3015 | { | |
48a8c394 | 3016 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3017 | const char *pin = (const char *)kcontrol->private_value; |
3018 | ||
8b37dbd2 | 3019 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3020 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3021 | else |
48a8c394 | 3022 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3023 | |
a73fb2df | 3024 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3025 | return 0; |
3026 | } | |
3027 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3028 | ||
5ba06fc9 MB |
3029 | static struct snd_soc_dapm_widget * |
3030 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3031 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3032 | { |
3033 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3034 | const char *prefix; |
62ea874a | 3035 | int ret; |
2b97eabc RP |
3036 | |
3037 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3038 | return NULL; |
2b97eabc | 3039 | |
62ea874a MB |
3040 | switch (w->id) { |
3041 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3042 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3043 | if (IS_ERR(w->regulator)) { | |
3044 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3045 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3046 | w->name, ret); |
5ba06fc9 | 3047 | return NULL; |
62ea874a | 3048 | } |
8784c77a | 3049 | |
de9ba98b | 3050 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3051 | ret = regulator_allow_bypass(w->regulator, true); |
3052 | if (ret != 0) | |
3053 | dev_warn(w->dapm->dev, | |
30686c35 | 3054 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3055 | w->name, ret); |
3056 | } | |
62ea874a | 3057 | break; |
d7e7eb91 | 3058 | case snd_soc_dapm_clock_supply: |
165961ef | 3059 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3060 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3061 | if (IS_ERR(w->clk)) { |
3062 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3063 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3064 | w->name, ret); |
3065 | return NULL; | |
3066 | } | |
ec02995a MB |
3067 | #else |
3068 | return NULL; | |
3069 | #endif | |
d7e7eb91 | 3070 | break; |
62ea874a MB |
3071 | default: |
3072 | break; | |
3073 | } | |
2b97eabc | 3074 | |
94f99c87 LPC |
3075 | prefix = soc_dapm_prefix(dapm); |
3076 | if (prefix) | |
3077 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); | |
2b581074 LPC |
3078 | else |
3079 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3080 | ||
ead9b919 JN |
3081 | if (w->name == NULL) { |
3082 | kfree(w); | |
5ba06fc9 | 3083 | return NULL; |
ead9b919 | 3084 | } |
ead9b919 | 3085 | |
7ca3a18b | 3086 | switch (w->id) { |
6dd98b0a LPC |
3087 | case snd_soc_dapm_mic: |
3088 | case snd_soc_dapm_input: | |
3089 | w->is_source = 1; | |
7ca3a18b MB |
3090 | w->power_check = dapm_generic_check_power; |
3091 | break; | |
6dd98b0a LPC |
3092 | case snd_soc_dapm_spk: |
3093 | case snd_soc_dapm_hp: | |
3094 | case snd_soc_dapm_output: | |
3095 | w->is_sink = 1; | |
7ca3a18b MB |
3096 | w->power_check = dapm_generic_check_power; |
3097 | break; | |
6dd98b0a LPC |
3098 | case snd_soc_dapm_vmid: |
3099 | case snd_soc_dapm_siggen: | |
3100 | w->is_source = 1; | |
3101 | w->power_check = dapm_always_on_check_power; | |
3102 | break; | |
3103 | case snd_soc_dapm_mux: | |
3104 | case snd_soc_dapm_switch: | |
3105 | case snd_soc_dapm_mixer: | |
3106 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3107 | case snd_soc_dapm_adc: |
3108 | case snd_soc_dapm_aif_out: | |
3109 | case snd_soc_dapm_dac: | |
3110 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3111 | case snd_soc_dapm_pga: |
3112 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3113 | case snd_soc_dapm_micbias: |
7ca3a18b | 3114 | case snd_soc_dapm_line: |
c74184ed | 3115 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3116 | case snd_soc_dapm_dai_out: |
3117 | case snd_soc_dapm_dai_in: | |
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: |
6dd98b0a | 3124 | w->is_supply = 1; |
7ca3a18b MB |
3125 | w->power_check = dapm_supply_check_power; |
3126 | break; | |
3127 | default: | |
3128 | w->power_check = dapm_always_on_check_power; | |
3129 | break; | |
3130 | } | |
3131 | ||
ce6120cc | 3132 | w->dapm = dapm; |
b2d9de54 JN |
3133 | if (dapm->component) |
3134 | w->codec = dapm->component->codec; | |
2b97eabc RP |
3135 | INIT_LIST_HEAD(&w->sources); |
3136 | INIT_LIST_HEAD(&w->sinks); | |
3137 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3138 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3139 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc | 3140 | |
92a99ea4 LPC |
3141 | w->inputs = -1; |
3142 | w->outputs = -1; | |
3143 | ||
2b97eabc RP |
3144 | /* machine layer set ups unconnected pins and insertions */ |
3145 | w->connected = 1; | |
5ba06fc9 | 3146 | return w; |
2b97eabc | 3147 | } |
2b97eabc | 3148 | |
4ba1327a MB |
3149 | /** |
3150 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3151 | * @dapm: DAPM context |
4ba1327a MB |
3152 | * @widget: widget array |
3153 | * @num: number of widgets | |
3154 | * | |
3155 | * Creates new DAPM controls based upon the templates. | |
3156 | * | |
3157 | * Returns 0 for success else error. | |
3158 | */ | |
ce6120cc | 3159 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3160 | const struct snd_soc_dapm_widget *widget, |
3161 | int num) | |
3162 | { | |
5ba06fc9 MB |
3163 | struct snd_soc_dapm_widget *w; |
3164 | int i; | |
60884c27 | 3165 | int ret = 0; |
4ba1327a | 3166 | |
a73fb2df | 3167 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3168 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3169 | w = snd_soc_dapm_new_control(dapm, widget); |
3170 | if (!w) { | |
f7d41ae8 | 3171 | dev_err(dapm->dev, |
5ba06fc9 MB |
3172 | "ASoC: Failed to create DAPM control %s\n", |
3173 | widget->name); | |
60884c27 DC |
3174 | ret = -ENOMEM; |
3175 | break; | |
b8b33cb5 | 3176 | } |
4ba1327a MB |
3177 | widget++; |
3178 | } | |
a73fb2df | 3179 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3180 | return ret; |
4ba1327a MB |
3181 | } |
3182 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3183 | ||
c74184ed MB |
3184 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3185 | struct snd_kcontrol *kcontrol, int event) | |
3186 | { | |
3187 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3188 | struct snd_soc_dai *source, *sink; | |
3189 | const struct snd_soc_pcm_stream *config = w->params; | |
3190 | struct snd_pcm_substream substream; | |
9747cec2 | 3191 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3192 | u64 fmt; |
3193 | int ret; | |
3194 | ||
bf4edea8 TI |
3195 | if (WARN_ON(!config) || |
3196 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3197 | return -EINVAL; | |
c74184ed MB |
3198 | |
3199 | /* We only support a single source and sink, pick the first */ | |
3200 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3201 | list_sink); | |
3202 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3203 | list_source); | |
3204 | ||
bf4edea8 TI |
3205 | if (WARN_ON(!source_p || !sink_p) || |
3206 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3207 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3208 | return -EINVAL; | |
c74184ed MB |
3209 | |
3210 | source = source_p->source->priv; | |
3211 | sink = sink_p->sink->priv; | |
3212 | ||
3213 | /* Be a little careful as we don't want to overflow the mask array */ | |
3214 | if (config->formats) { | |
3215 | fmt = ffs(config->formats) - 1; | |
3216 | } else { | |
30a6a1a4 | 3217 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3218 | config->formats); |
3219 | fmt = 0; | |
3220 | } | |
3221 | ||
3222 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3223 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3224 | if (!params) { | |
3225 | ret = -ENOMEM; | |
3226 | goto out; | |
3227 | } | |
3228 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3229 | |
9747cec2 | 3230 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3231 | config->rate_min; |
9747cec2 | 3232 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3233 | config->rate_max; |
3234 | ||
9747cec2 | 3235 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3236 | = config->channels_min; |
9747cec2 | 3237 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3238 | = config->channels_max; |
3239 | ||
3240 | memset(&substream, 0, sizeof(substream)); | |
3241 | ||
3242 | switch (event) { | |
3243 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3244 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3245 | ret = soc_dai_hw_params(&substream, params, source); | |
3246 | if (ret < 0) | |
3247 | goto out; | |
c74184ed | 3248 | |
93e6958a BC |
3249 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3250 | ret = soc_dai_hw_params(&substream, params, sink); | |
3251 | if (ret < 0) | |
3252 | goto out; | |
c74184ed MB |
3253 | break; |
3254 | ||
3255 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3256 | ret = snd_soc_dai_digital_mute(sink, 0, |
3257 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3258 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3259 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3260 | ret = 0; |
c74184ed MB |
3261 | break; |
3262 | ||
3263 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3264 | ret = snd_soc_dai_digital_mute(sink, 1, |
3265 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3266 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3267 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3268 | ret = 0; |
c74184ed MB |
3269 | break; |
3270 | ||
3271 | default: | |
a6ed0608 | 3272 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3273 | return -EINVAL; |
3274 | } | |
3275 | ||
9747cec2 MB |
3276 | out: |
3277 | kfree(params); | |
3278 | return ret; | |
c74184ed MB |
3279 | } |
3280 | ||
3281 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3282 | const struct snd_soc_pcm_stream *params, | |
3283 | struct snd_soc_dapm_widget *source, | |
3284 | struct snd_soc_dapm_widget *sink) | |
3285 | { | |
c74184ed MB |
3286 | struct snd_soc_dapm_widget template; |
3287 | struct snd_soc_dapm_widget *w; | |
3288 | size_t len; | |
3289 | char *link_name; | |
fe83897f | 3290 | int ret; |
c74184ed MB |
3291 | |
3292 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3293 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3294 | if (!link_name) | |
3295 | return -ENOMEM; | |
3296 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3297 | ||
3298 | memset(&template, 0, sizeof(template)); | |
3299 | template.reg = SND_SOC_NOPM; | |
3300 | template.id = snd_soc_dapm_dai_link; | |
3301 | template.name = link_name; | |
3302 | template.event = snd_soc_dai_link_event; | |
3303 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3304 | SND_SOC_DAPM_PRE_PMD; | |
3305 | ||
30a6a1a4 | 3306 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3307 | |
3308 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3309 | if (!w) { | |
30a6a1a4 | 3310 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3311 | link_name); |
3312 | return -ENOMEM; | |
3313 | } | |
3314 | ||
3315 | w->params = params; | |
3316 | ||
fe83897f LPC |
3317 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3318 | if (ret) | |
3319 | return ret; | |
3320 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); | |
c74184ed MB |
3321 | } |
3322 | ||
888df395 MB |
3323 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3324 | struct snd_soc_dai *dai) | |
2b97eabc | 3325 | { |
888df395 | 3326 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3327 | struct snd_soc_dapm_widget *w; |
3328 | ||
888df395 MB |
3329 | WARN_ON(dapm->dev != dai->dev); |
3330 | ||
3331 | memset(&template, 0, sizeof(template)); | |
3332 | template.reg = SND_SOC_NOPM; | |
3333 | ||
3334 | if (dai->driver->playback.stream_name) { | |
4616274d | 3335 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3336 | template.name = dai->driver->playback.stream_name; |
3337 | template.sname = dai->driver->playback.stream_name; | |
3338 | ||
30a6a1a4 | 3339 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3340 | template.name); |
3341 | ||
3342 | w = snd_soc_dapm_new_control(dapm, &template); | |
3343 | if (!w) { | |
30a6a1a4 | 3344 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3345 | dai->driver->playback.stream_name); |
298402a3 | 3346 | return -ENOMEM; |
888df395 MB |
3347 | } |
3348 | ||
3349 | w->priv = dai; | |
3350 | dai->playback_widget = w; | |
3351 | } | |
3352 | ||
3353 | if (dai->driver->capture.stream_name) { | |
4616274d | 3354 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3355 | template.name = dai->driver->capture.stream_name; |
3356 | template.sname = dai->driver->capture.stream_name; | |
3357 | ||
30a6a1a4 | 3358 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3359 | template.name); |
3360 | ||
3361 | w = snd_soc_dapm_new_control(dapm, &template); | |
3362 | if (!w) { | |
30a6a1a4 | 3363 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3364 | dai->driver->capture.stream_name); |
298402a3 | 3365 | return -ENOMEM; |
888df395 MB |
3366 | } |
3367 | ||
3368 | w->priv = dai; | |
3369 | dai->capture_widget = w; | |
3370 | } | |
3371 | ||
3372 | return 0; | |
3373 | } | |
3374 | ||
3375 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3376 | { | |
3377 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3378 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3379 | struct snd_soc_dai *dai; |
888df395 MB |
3380 | |
3381 | /* For each DAI widget... */ | |
3382 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3383 | switch (dai_w->id) { |
3384 | case snd_soc_dapm_dai_in: | |
3385 | case snd_soc_dapm_dai_out: | |
3386 | break; | |
3387 | default: | |
2b97eabc | 3388 | continue; |
4616274d | 3389 | } |
888df395 MB |
3390 | |
3391 | dai = dai_w->priv; | |
3392 | ||
3393 | /* ...find all widgets with the same stream and link them */ | |
3394 | list_for_each_entry(w, &card->widgets, list) { | |
3395 | if (w->dapm != dai_w->dapm) | |
3396 | continue; | |
3397 | ||
4616274d MB |
3398 | switch (w->id) { |
3399 | case snd_soc_dapm_dai_in: | |
3400 | case snd_soc_dapm_dai_out: | |
888df395 | 3401 | continue; |
4616274d MB |
3402 | default: |
3403 | break; | |
3404 | } | |
888df395 | 3405 | |
19c2c5f5 | 3406 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3407 | continue; |
3408 | ||
0f9bd7b1 LPC |
3409 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3410 | src = dai_w; | |
3411 | sink = w; | |
3412 | } else { | |
3413 | src = w; | |
3414 | sink = dai_w; | |
2b97eabc | 3415 | } |
0f9bd7b1 LPC |
3416 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3417 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3418 | } |
3419 | } | |
2b97eabc | 3420 | |
888df395 MB |
3421 | return 0; |
3422 | } | |
64a648c2 | 3423 | |
44ba2641 BC |
3424 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3425 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3426 | { |
44ba2641 | 3427 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3428 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3429 | int i; |
3430 | ||
44ba2641 BC |
3431 | for (i = 0; i < rtd->num_codecs; i++) { |
3432 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3433 | |
3434 | /* there is no point in connecting BE DAI links with dummies */ | |
3435 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3436 | snd_soc_dai_is_dummy(cpu_dai)) | |
3437 | continue; | |
3438 | ||
3439 | /* connect BE DAI playback if widgets are valid */ | |
3440 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3441 | source = cpu_dai->playback_widget; |
3442 | sink = codec_dai->playback_widget; | |
b893ea5f | 3443 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3444 | cpu_dai->component->name, source->name, |
3445 | codec_dai->component->name, sink->name); | |
b893ea5f | 3446 | |
9887c20b LPC |
3447 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3448 | NULL, NULL); | |
b893ea5f LG |
3449 | } |
3450 | ||
3451 | /* connect BE DAI capture if widgets are valid */ | |
3452 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3453 | source = codec_dai->capture_widget; |
3454 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3455 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3456 | codec_dai->component->name, source->name, |
3457 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3458 | |
9887c20b LPC |
3459 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3460 | NULL, NULL); | |
b893ea5f | 3461 | } |
b893ea5f LG |
3462 | } |
3463 | } | |
3464 | ||
c471fdd1 | 3465 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3466 | int event) |
2b97eabc | 3467 | { |
c471fdd1 | 3468 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3469 | |
c471fdd1 LPC |
3470 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3471 | w = dai->playback_widget; | |
3472 | else | |
3473 | w = dai->capture_widget; | |
fe360685 | 3474 | |
c471fdd1 LPC |
3475 | if (w) { |
3476 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3477 | |
3478 | switch (event) { | |
3479 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3480 | w->active = 1; |
d9b0951b LG |
3481 | break; |
3482 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3483 | w->active = 0; |
d9b0951b LG |
3484 | break; |
3485 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3486 | case SND_SOC_DAPM_STREAM_RESUME: | |
3487 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3488 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3489 | break; | |
3490 | } | |
6dd98b0a | 3491 | |
92a99ea4 | 3492 | if (w->id == snd_soc_dapm_dai_in) { |
6dd98b0a | 3493 | w->is_source = w->active; |
92a99ea4 LPC |
3494 | dapm_widget_invalidate_input_paths(w); |
3495 | } else { | |
6dd98b0a | 3496 | w->is_sink = w->active; |
92a99ea4 LPC |
3497 | dapm_widget_invalidate_output_paths(w); |
3498 | } | |
d9b0951b | 3499 | } |
c471fdd1 | 3500 | } |
d9b0951b | 3501 | |
44ba2641 BC |
3502 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3503 | { | |
3504 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3505 | int i; | |
3506 | ||
3507 | /* for each BE DAI link... */ | |
3508 | for (i = 0; i < card->num_rtd; i++) { | |
3509 | rtd = &card->rtd[i]; | |
3510 | ||
3511 | /* | |
3512 | * dynamic FE links have no fixed DAI mapping. | |
3513 | * CODEC<->CODEC links have no direct connection. | |
3514 | */ | |
3515 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3516 | continue; | |
3517 | ||
3518 | dapm_connect_dai_link_widgets(card, rtd); | |
3519 | } | |
3520 | } | |
3521 | ||
c471fdd1 LPC |
3522 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3523 | int event) | |
3524 | { | |
44ba2641 BC |
3525 | int i; |
3526 | ||
c471fdd1 | 3527 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3528 | for (i = 0; i < rtd->num_codecs; i++) |
3529 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3530 | |
95dd5cd6 | 3531 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3532 | } |
3533 | ||
3534 | /** | |
3535 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3536 | * @rtd: PCM runtime data | |
3537 | * @stream: stream name | |
3538 | * @event: stream event | |
3539 | * | |
3540 | * Sends a stream event to the dapm core. The core then makes any | |
3541 | * necessary widget power changes. | |
3542 | * | |
3543 | * Returns 0 for success else error. | |
3544 | */ | |
d9b0951b LG |
3545 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3546 | int event) | |
ce6120cc | 3547 | { |
a73fb2df | 3548 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3549 | |
3cd04343 | 3550 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3551 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3552 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3553 | } |
2b97eabc | 3554 | |
11391100 CK |
3555 | /** |
3556 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3557 | * @dapm: DAPM context | |
3558 | * @pin: pin name | |
3559 | * | |
3560 | * Enables input/output pin and its parents or children widgets iff there is | |
3561 | * a valid audio route and active audio stream. | |
3562 | * | |
3563 | * Requires external locking. | |
3564 | * | |
3565 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3566 | * do any widget power switching. | |
3567 | */ | |
3568 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3569 | const char *pin) | |
3570 | { | |
3571 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3572 | } | |
3573 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3574 | ||
2b97eabc | 3575 | /** |
a5302181 | 3576 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3577 | * @dapm: DAPM context |
a5302181 | 3578 | * @pin: pin name |
2b97eabc | 3579 | * |
74b8f955 | 3580 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3581 | * a valid audio route and active audio stream. |
11391100 | 3582 | * |
a5302181 LG |
3583 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3584 | * do any widget power switching. | |
2b97eabc | 3585 | */ |
ce6120cc | 3586 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3587 | { |
11391100 CK |
3588 | int ret; |
3589 | ||
3590 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3591 | ||
3592 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3593 | ||
3594 | mutex_unlock(&dapm->card->dapm_mutex); | |
3595 | ||
3596 | return ret; | |
a5302181 LG |
3597 | } |
3598 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3599 | |
da34183e | 3600 | /** |
11391100 | 3601 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3602 | * @dapm: DAPM context |
da34183e MB |
3603 | * @pin: pin name |
3604 | * | |
3605 | * Enables input/output pin regardless of any other state. This is | |
3606 | * intended for use with microphone bias supplies used in microphone | |
3607 | * jack detection. | |
3608 | * | |
11391100 CK |
3609 | * Requires external locking. |
3610 | * | |
da34183e MB |
3611 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3612 | * do any widget power switching. | |
3613 | */ | |
11391100 CK |
3614 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3615 | const char *pin) | |
da34183e | 3616 | { |
91a5fca4 | 3617 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3618 | |
91a5fca4 | 3619 | if (!w) { |
30a6a1a4 | 3620 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3621 | return -EINVAL; |
0d86733c MB |
3622 | } |
3623 | ||
30a6a1a4 | 3624 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
3625 | if (!w->connected) { |
3626 | /* | |
3627 | * w->force does not affect the number of input or output paths, | |
3628 | * so we only have to recheck if w->connected is changed | |
3629 | */ | |
3630 | dapm_widget_invalidate_input_paths(w); | |
3631 | dapm_widget_invalidate_output_paths(w); | |
3632 | w->connected = 1; | |
3633 | } | |
91a5fca4 | 3634 | w->force = 1; |
75c1f891 | 3635 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3636 | |
91a5fca4 | 3637 | return 0; |
da34183e | 3638 | } |
11391100 CK |
3639 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3640 | ||
3641 | /** | |
3642 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3643 | * @dapm: DAPM context | |
3644 | * @pin: pin name | |
3645 | * | |
3646 | * Enables input/output pin regardless of any other state. This is | |
3647 | * intended for use with microphone bias supplies used in microphone | |
3648 | * jack detection. | |
3649 | * | |
3650 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3651 | * do any widget power switching. | |
3652 | */ | |
3653 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3654 | const char *pin) | |
3655 | { | |
3656 | int ret; | |
3657 | ||
3658 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3659 | ||
3660 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3661 | ||
3662 | mutex_unlock(&dapm->card->dapm_mutex); | |
3663 | ||
3664 | return ret; | |
3665 | } | |
da34183e MB |
3666 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3667 | ||
11391100 CK |
3668 | /** |
3669 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3670 | * @dapm: DAPM context | |
3671 | * @pin: pin name | |
3672 | * | |
3673 | * Disables input/output pin and its parents or children widgets. | |
3674 | * | |
3675 | * Requires external locking. | |
3676 | * | |
3677 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3678 | * do any widget power switching. | |
3679 | */ | |
3680 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3681 | const char *pin) | |
3682 | { | |
3683 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3684 | } | |
3685 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3686 | ||
a5302181 LG |
3687 | /** |
3688 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3689 | * @dapm: DAPM context |
a5302181 LG |
3690 | * @pin: pin name |
3691 | * | |
74b8f955 | 3692 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3693 | * |
a5302181 LG |
3694 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3695 | * do any widget power switching. | |
3696 | */ | |
ce6120cc LG |
3697 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3698 | const char *pin) | |
a5302181 | 3699 | { |
11391100 CK |
3700 | int ret; |
3701 | ||
3702 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3703 | ||
3704 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3705 | ||
3706 | mutex_unlock(&dapm->card->dapm_mutex); | |
3707 | ||
3708 | return ret; | |
2b97eabc | 3709 | } |
a5302181 | 3710 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3711 | |
11391100 CK |
3712 | /** |
3713 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3714 | * @dapm: DAPM context | |
3715 | * @pin: pin name | |
3716 | * | |
3717 | * Marks the specified pin as being not connected, disabling it along | |
3718 | * any parent or child widgets. At present this is identical to | |
3719 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3720 | * additional things such as disabling controls which only affect | |
3721 | * paths through the pin. | |
3722 | * | |
3723 | * Requires external locking. | |
3724 | * | |
3725 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3726 | * do any widget power switching. | |
3727 | */ | |
3728 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3729 | const char *pin) | |
3730 | { | |
3731 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3732 | } | |
3733 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3734 | ||
5817b52a MB |
3735 | /** |
3736 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3737 | * @dapm: DAPM context |
5817b52a MB |
3738 | * @pin: pin name |
3739 | * | |
3740 | * Marks the specified pin as being not connected, disabling it along | |
3741 | * any parent or child widgets. At present this is identical to | |
3742 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3743 | * additional things such as disabling controls which only affect | |
3744 | * paths through the pin. | |
3745 | * | |
3746 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3747 | * do any widget power switching. | |
3748 | */ | |
ce6120cc | 3749 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3750 | { |
11391100 CK |
3751 | int ret; |
3752 | ||
3753 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3754 | ||
3755 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3756 | ||
3757 | mutex_unlock(&dapm->card->dapm_mutex); | |
3758 | ||
3759 | return ret; | |
5817b52a MB |
3760 | } |
3761 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3762 | ||
eeec12bf | 3763 | /** |
a5302181 | 3764 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3765 | * @dapm: DAPM context |
a5302181 | 3766 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3767 | * |
a5302181 | 3768 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3769 | * |
a5302181 | 3770 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3771 | */ |
ce6120cc LG |
3772 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3773 | const char *pin) | |
eeec12bf | 3774 | { |
91a5fca4 | 3775 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3776 | |
91a5fca4 LPC |
3777 | if (w) |
3778 | return w->connected; | |
a68b38ad | 3779 | |
eeec12bf GG |
3780 | return 0; |
3781 | } | |
a5302181 | 3782 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3783 | |
1547aba9 MB |
3784 | /** |
3785 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3786 | * @dapm: DAPM context |
1547aba9 MB |
3787 | * @pin: audio signal pin endpoint (or start point) |
3788 | * | |
3789 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3790 | * system is disabled a path between two endpoints flagged as ignoring | |
3791 | * suspend will not be disabled. The path must already be enabled via | |
3792 | * normal means at suspend time, it will not be turned on if it was not | |
3793 | * already enabled. | |
3794 | */ | |
ce6120cc LG |
3795 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3796 | const char *pin) | |
1547aba9 | 3797 | { |
91a5fca4 | 3798 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3799 | |
91a5fca4 | 3800 | if (!w) { |
30a6a1a4 | 3801 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3802 | return -EINVAL; |
1547aba9 MB |
3803 | } |
3804 | ||
91a5fca4 LPC |
3805 | w->ignore_suspend = 1; |
3806 | ||
3807 | return 0; | |
1547aba9 MB |
3808 | } |
3809 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3810 | ||
cdc4508b LPC |
3811 | /** |
3812 | * dapm_is_external_path() - Checks if a path is a external path | |
3813 | * @card: The card the path belongs to | |
3814 | * @path: The path to check | |
3815 | * | |
3816 | * Returns true if the path is either between two different DAPM contexts or | |
3817 | * between two external pins of the same DAPM context. Otherwise returns | |
3818 | * false. | |
3819 | */ | |
3820 | static bool dapm_is_external_path(struct snd_soc_card *card, | |
3821 | struct snd_soc_dapm_path *path) | |
3822 | { | |
3823 | dev_dbg(card->dev, | |
3824 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3825 | path->source->name, path->source->id, path->source->dapm, | |
3826 | path->sink->name, path->sink->id, path->sink->dapm); | |
3827 | ||
3828 | /* Connection between two different DAPM contexts */ | |
3829 | if (path->source->dapm != path->sink->dapm) | |
3830 | return true; | |
3831 | ||
3832 | /* Loopback connection from external pin to external pin */ | |
3833 | if (path->sink->id == snd_soc_dapm_input) { | |
3834 | switch (path->source->id) { | |
3835 | case snd_soc_dapm_output: | |
3836 | case snd_soc_dapm_micbias: | |
3837 | return true; | |
3838 | default: | |
3839 | break; | |
3840 | } | |
3841 | } | |
3842 | ||
3843 | return false; | |
3844 | } | |
3845 | ||
1633281b SW |
3846 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3847 | struct snd_soc_dapm_widget *w) | |
3848 | { | |
3849 | struct snd_soc_dapm_path *p; | |
3850 | ||
cdc4508b LPC |
3851 | list_for_each_entry(p, &w->sources, list_sink) { |
3852 | if (dapm_is_external_path(card, p)) | |
3853 | return true; | |
3854 | } | |
1633281b | 3855 | |
cdc4508b LPC |
3856 | list_for_each_entry(p, &w->sinks, list_source) { |
3857 | if (dapm_is_external_path(card, p)) | |
3858 | return true; | |
1633281b SW |
3859 | } |
3860 | ||
3861 | return false; | |
3862 | } | |
3863 | ||
3864 | /** | |
7df37884 LPC |
3865 | * snd_soc_dapm_auto_nc_pins - call snd_soc_dapm_nc_pin for unused pins |
3866 | * @card: The card whose pins should be processed | |
1633281b | 3867 | * |
7df37884 LPC |
3868 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the card |
3869 | * which are unused. Pins are used if they are connected externally to a | |
3870 | * component, whether that be to some other device, or a loop-back connection to | |
3871 | * the component itself. | |
1633281b | 3872 | */ |
7df37884 | 3873 | void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card) |
1633281b | 3874 | { |
1633281b SW |
3875 | struct snd_soc_dapm_widget *w; |
3876 | ||
7df37884 | 3877 | dev_dbg(card->dev, "ASoC: Auto NC: DAPMs: card:%p\n", &card->dapm); |
1633281b SW |
3878 | |
3879 | list_for_each_entry(w, &card->widgets, list) { | |
1633281b SW |
3880 | switch (w->id) { |
3881 | case snd_soc_dapm_input: | |
3882 | case snd_soc_dapm_output: | |
3883 | case snd_soc_dapm_micbias: | |
7df37884 | 3884 | dev_dbg(card->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3885 | w->name); |
3886 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
7df37884 | 3887 | dev_dbg(card->dev, |
1633281b | 3888 | "... Not in map; disabling\n"); |
7df37884 | 3889 | snd_soc_dapm_nc_pin(w->dapm, w->name); |
1633281b SW |
3890 | } |
3891 | break; | |
3892 | default: | |
3893 | break; | |
3894 | } | |
3895 | } | |
3896 | } | |
3897 | ||
2b97eabc RP |
3898 | /** |
3899 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3900 | * @dapm: DAPM context |
2b97eabc RP |
3901 | * |
3902 | * Free all dapm widgets and resources. | |
3903 | */ | |
ce6120cc | 3904 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3905 | { |
ce6120cc | 3906 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3907 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3908 | dapm_free_widgets(dapm); |
7be31be8 | 3909 | list_del(&dapm->list); |
2b97eabc RP |
3910 | } |
3911 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3912 | ||
57996358 | 3913 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 3914 | { |
01005a72 | 3915 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3916 | struct snd_soc_dapm_widget *w; |
3917 | LIST_HEAD(down_list); | |
3918 | int powerdown = 0; | |
3919 | ||
01005a72 LG |
3920 | mutex_lock(&card->dapm_mutex); |
3921 | ||
97c866de JN |
3922 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3923 | if (w->dapm != dapm) | |
3924 | continue; | |
51737470 | 3925 | if (w->power) { |
828a842f | 3926 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3927 | w->power = 0; |
51737470 MB |
3928 | powerdown = 1; |
3929 | } | |
3930 | } | |
3931 | ||
3932 | /* If there were no widgets to power down we're already in | |
3933 | * standby. | |
3934 | */ | |
3935 | if (powerdown) { | |
7679e42e MB |
3936 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3937 | snd_soc_dapm_set_bias_level(dapm, | |
3938 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3939 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3940 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3941 | snd_soc_dapm_set_bias_level(dapm, | |
3942 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3943 | } |
01005a72 LG |
3944 | |
3945 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3946 | } |
3947 | ||
3948 | /* | |
3949 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3950 | */ | |
3951 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3952 | { | |
57996358 | 3953 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3954 | |
57996358 | 3955 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
3956 | if (dapm != &card->dapm) { |
3957 | soc_dapm_shutdown_dapm(dapm); | |
3958 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
3959 | snd_soc_dapm_set_bias_level(dapm, | |
3960 | SND_SOC_BIAS_OFF); | |
3961 | } | |
ce6120cc | 3962 | } |
17282ba4 XX |
3963 | |
3964 | soc_dapm_shutdown_dapm(&card->dapm); | |
3965 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
3966 | snd_soc_dapm_set_bias_level(&card->dapm, | |
3967 | SND_SOC_BIAS_OFF); | |
51737470 MB |
3968 | } |
3969 | ||
2b97eabc | 3970 | /* Module information */ |
d331124d | 3971 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3972 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3973 | MODULE_LICENSE("GPL"); |