]>
Commit | Line | Data |
---|---|---|
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 | ||
6c120e19 LG |
476 | static void dapm_reset(struct snd_soc_card *card) |
477 | { | |
478 | struct snd_soc_dapm_widget *w; | |
479 | ||
f9fa2b18 MB |
480 | lockdep_assert_held(&card->dapm_mutex); |
481 | ||
6c120e19 LG |
482 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
483 | ||
484 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 485 | w->new_power = w->power; |
6c120e19 | 486 | w->power_checked = false; |
6c120e19 LG |
487 | } |
488 | } | |
489 | ||
94f99c87 LPC |
490 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
491 | { | |
492 | if (!dapm->component) | |
493 | return NULL; | |
494 | return dapm->component->name_prefix; | |
495 | } | |
496 | ||
ce0fc93a | 497 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 498 | unsigned int *value) |
0445bdf4 | 499 | { |
ce0fc93a | 500 | if (!dapm->component) |
e2c330b9 | 501 | return -EIO; |
ce0fc93a | 502 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
503 | } |
504 | ||
ce0fc93a | 505 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 506 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 507 | { |
ce0fc93a | 508 | if (!dapm->component) |
e2c330b9 | 509 | return -EIO; |
fcf6c5ea MB |
510 | return snd_soc_component_update_bits(dapm->component, reg, |
511 | mask, value); | |
49575fb5 LG |
512 | } |
513 | ||
ce0fc93a LPC |
514 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
515 | int reg, unsigned int mask, unsigned int value) | |
516 | { | |
517 | if (!dapm->component) | |
518 | return -EIO; | |
519 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
520 | } | |
521 | ||
eb270e98 MB |
522 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
523 | { | |
e2c330b9 LPC |
524 | if (dapm->component) |
525 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
526 | } |
527 | ||
fa880775 LPC |
528 | /** |
529 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
530 | * @dapm: The DAPM context for which to set the level | |
531 | * @level: The level to set | |
532 | * | |
533 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
534 | * callback of DAPM context with the specified level. This will even happen if | |
535 | * the context is already at the same level. Furthermore it will not go through | |
536 | * the normal bias level sequencing, meaning any intermediate states between the | |
537 | * current and the target state will not be entered. | |
538 | * | |
539 | * Note that the change in bias level is only temporary and the next time | |
540 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
541 | * determined by the DAPM core. The function is mainly intended to be used to | |
542 | * used during probe or resume from suspend to power up the device so | |
543 | * initialization can be done, before the DAPM core takes over. | |
544 | */ | |
545 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
546 | enum snd_soc_bias_level level) | |
547 | { | |
548 | int ret = 0; | |
549 | ||
550 | if (dapm->set_bias_level) | |
551 | ret = dapm->set_bias_level(dapm, level); | |
552 | ||
553 | return ret; | |
554 | } | |
555 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
556 | ||
452c5eaa MB |
557 | /** |
558 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 559 | * @dapm: DAPM context |
452c5eaa MB |
560 | * @level: level to configure |
561 | * | |
562 | * Configure the bias (power) levels for the SoC audio device. | |
563 | * | |
564 | * Returns 0 for success else error. | |
565 | */ | |
ed5a4c47 | 566 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 567 | enum snd_soc_bias_level level) |
452c5eaa | 568 | { |
ed5a4c47 | 569 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
570 | int ret = 0; |
571 | ||
84e90930 MB |
572 | trace_snd_soc_bias_level_start(card, level); |
573 | ||
f0fba2ad | 574 | if (card && card->set_bias_level) |
d4c6005f | 575 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
576 | if (ret != 0) |
577 | goto out; | |
578 | ||
fa880775 LPC |
579 | if (!card || dapm != &card->dapm) |
580 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 581 | |
171ec6b0 MB |
582 | if (ret != 0) |
583 | goto out; | |
584 | ||
585 | if (card && card->set_bias_level_post) | |
d4c6005f | 586 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 587 | out: |
84e90930 MB |
588 | trace_snd_soc_bias_level_done(card, level); |
589 | ||
452c5eaa MB |
590 | return ret; |
591 | } | |
592 | ||
74b8f955 | 593 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 594 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
5fe5b767 | 595 | struct snd_soc_dapm_path *path, const char *control_name) |
2b97eabc | 596 | { |
5fe5b767 | 597 | const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0]; |
2b97eabc | 598 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 599 | unsigned int val, item; |
2b97eabc | 600 | int i; |
24ff33ac | 601 | |
234c0b8f | 602 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 603 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
604 | val = (val >> e->shift_l) & e->mask; |
605 | item = snd_soc_enum_val_to_item(e, val); | |
606 | } else { | |
24ff33ac DP |
607 | /* since a virtual mux has no backing registers to |
608 | * decide which path to connect, it will try to match | |
609 | * with the first enumeration. This is to ensure | |
610 | * that the default mux choice (the first) will be | |
611 | * correctly powered up during initialization. | |
612 | */ | |
234c0b8f | 613 | item = 0; |
24ff33ac | 614 | } |
2e72f8e3 | 615 | |
9a8d38db | 616 | for (i = 0; i < e->items; i++) { |
2b97eabc | 617 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 618 | path->name = e->texts[i]; |
234c0b8f LPC |
619 | if (i == item) |
620 | path->connect = 1; | |
621 | else | |
622 | path->connect = 0; | |
2b97eabc RP |
623 | return 0; |
624 | } | |
625 | } | |
626 | ||
627 | return -ENODEV; | |
628 | } | |
629 | ||
234c0b8f | 630 | /* set up initial codec paths */ |
5fe5b767 | 631 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
632 | { |
633 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 634 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
635 | unsigned int reg = mc->reg; |
636 | unsigned int shift = mc->shift; | |
637 | unsigned int max = mc->max; | |
638 | unsigned int mask = (1 << fls(max)) - 1; | |
639 | unsigned int invert = mc->invert; | |
640 | unsigned int val; | |
641 | ||
642 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 643 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
644 | val = (val >> shift) & mask; |
645 | if (invert) | |
646 | val = max - val; | |
647 | p->connect = !!val; | |
648 | } else { | |
649 | p->connect = 0; | |
650 | } | |
651 | } | |
652 | ||
74b8f955 | 653 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 654 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
655 | struct snd_soc_dapm_path *path, const char *control_name) |
656 | { | |
657 | int i; | |
658 | ||
659 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
660 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
661 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
662 | path->name = path->sink->kcontrol_news[i].name; | |
663 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
664 | return 0; |
665 | } | |
666 | } | |
667 | return -ENODEV; | |
668 | } | |
669 | ||
af46800b | 670 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 671 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
672 | const struct snd_kcontrol_new *kcontrol_new, |
673 | struct snd_kcontrol **kcontrol) | |
674 | { | |
675 | struct snd_soc_dapm_widget *w; | |
676 | int i; | |
677 | ||
678 | *kcontrol = NULL; | |
679 | ||
680 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
681 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
682 | continue; | |
af46800b SW |
683 | for (i = 0; i < w->num_kcontrols; i++) { |
684 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
685 | if (w->kcontrols) | |
686 | *kcontrol = w->kcontrols[i]; | |
687 | return 1; | |
688 | } | |
689 | } | |
690 | } | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
85762e71 SW |
695 | /* |
696 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
697 | * create it. Either way, add the widget into the control's widget list | |
698 | */ | |
699 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 700 | int kci) |
2b97eabc | 701 | { |
4b80b8c2 | 702 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 703 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 704 | const char *prefix; |
85762e71 SW |
705 | size_t prefix_len; |
706 | int shared; | |
707 | struct snd_kcontrol *kcontrol; | |
85762e71 | 708 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 709 | char *long_name = NULL; |
85762e71 | 710 | const char *name; |
e5092c96 | 711 | int ret = 0; |
efb7ac3f | 712 | |
94f99c87 | 713 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
714 | if (prefix) |
715 | prefix_len = strlen(prefix) + 1; | |
716 | else | |
717 | prefix_len = 0; | |
718 | ||
85762e71 SW |
719 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
720 | &kcontrol); | |
2b97eabc | 721 | |
85762e71 SW |
722 | if (!kcontrol) { |
723 | if (shared) { | |
724 | wname_in_long_name = false; | |
725 | kcname_in_long_name = true; | |
726 | } else { | |
727 | switch (w->id) { | |
728 | case snd_soc_dapm_switch: | |
729 | case snd_soc_dapm_mixer: | |
730 | wname_in_long_name = true; | |
731 | kcname_in_long_name = true; | |
732 | break; | |
733 | case snd_soc_dapm_mixer_named_ctl: | |
734 | wname_in_long_name = false; | |
735 | kcname_in_long_name = true; | |
736 | break; | |
737 | case snd_soc_dapm_mux: | |
85762e71 SW |
738 | wname_in_long_name = true; |
739 | kcname_in_long_name = false; | |
740 | break; | |
741 | default: | |
85762e71 | 742 | return -EINVAL; |
82cd8764 | 743 | } |
85762e71 SW |
744 | } |
745 | ||
746 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
747 | /* |
748 | * The control will get a prefix from the control | |
749 | * creation process but we're also using the same | |
750 | * prefix for widgets so cut the prefix off the | |
751 | * front of the widget name. | |
ca9c1aae | 752 | */ |
2b581074 | 753 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
754 | w->name + prefix_len, |
755 | w->kcontrol_news[kci].name); | |
e84357f7 | 756 | if (long_name == NULL) |
2b581074 | 757 | return -ENOMEM; |
85762e71 SW |
758 | |
759 | name = long_name; | |
760 | } else if (wname_in_long_name) { | |
761 | long_name = NULL; | |
762 | name = w->name + prefix_len; | |
763 | } else { | |
764 | long_name = NULL; | |
765 | name = w->kcontrol_news[kci].name; | |
766 | } | |
ca9c1aae | 767 | |
e84357f7 | 768 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 769 | prefix); |
e5092c96 DM |
770 | if (!kcontrol) { |
771 | ret = -ENOMEM; | |
772 | goto exit_free; | |
773 | } | |
774 | ||
9356e9d5 | 775 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
776 | |
777 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
778 | if (ret) { | |
779 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 780 | goto exit_free; |
e84357f7 LPC |
781 | } |
782 | ||
85762e71 SW |
783 | ret = snd_ctl_add(card, kcontrol); |
784 | if (ret < 0) { | |
785 | dev_err(dapm->dev, | |
786 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
787 | w->name, name, ret); | |
e5092c96 | 788 | goto exit_free; |
85762e71 | 789 | } |
85762e71 | 790 | } |
2b97eabc | 791 | |
2c75bdf3 | 792 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
793 | if (ret == 0) |
794 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 795 | |
e5092c96 DM |
796 | exit_free: |
797 | kfree(long_name); | |
ca9c1aae | 798 | |
e5092c96 | 799 | return ret; |
85762e71 | 800 | } |
219b93f5 | 801 | |
85762e71 SW |
802 | /* create new dapm mixer control */ |
803 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
804 | { | |
805 | int i, ret; | |
806 | struct snd_soc_dapm_path *path; | |
807 | ||
808 | /* add kcontrol */ | |
809 | for (i = 0; i < w->num_kcontrols; i++) { | |
810 | /* match name */ | |
811 | list_for_each_entry(path, &w->sources, list_sink) { | |
812 | /* mixer/mux paths name must match control name */ | |
813 | if (path->name != (char *)w->kcontrol_news[i].name) | |
814 | continue; | |
815 | ||
816 | if (w->kcontrols[i]) { | |
5106b92f | 817 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 818 | continue; |
2b97eabc | 819 | } |
85762e71 | 820 | |
946d92a1 | 821 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
822 | if (ret < 0) |
823 | return ret; | |
946d92a1 MB |
824 | |
825 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
826 | } |
827 | } | |
85762e71 SW |
828 | |
829 | return 0; | |
2b97eabc RP |
830 | } |
831 | ||
832 | /* create new dapm mux control */ | |
4b80b8c2 | 833 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 834 | { |
4b80b8c2 | 835 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 836 | struct snd_soc_dapm_path *path; |
af46800b | 837 | int ret; |
2b97eabc | 838 | |
af46800b SW |
839 | if (w->num_kcontrols != 1) { |
840 | dev_err(dapm->dev, | |
30a6a1a4 | 841 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 842 | w->name); |
2b97eabc RP |
843 | return -EINVAL; |
844 | } | |
845 | ||
fe581391 | 846 | if (list_empty(&w->sources)) { |
85762e71 SW |
847 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
848 | return -EINVAL; | |
af46800b | 849 | } |
ce6120cc | 850 | |
946d92a1 | 851 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
852 | if (ret < 0) |
853 | return ret; | |
fad59888 | 854 | |
98407efc LPC |
855 | list_for_each_entry(path, &w->sources, list_sink) { |
856 | if (path->name) | |
857 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
858 | } | |
2b97eabc | 859 | |
af46800b | 860 | return 0; |
2b97eabc RP |
861 | } |
862 | ||
863 | /* create new dapm volume control */ | |
4b80b8c2 | 864 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 865 | { |
a6c65736 | 866 | if (w->num_kcontrols) |
f7d41ae8 | 867 | dev_err(w->dapm->dev, |
30a6a1a4 | 868 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 869 | |
a6c65736 | 870 | return 0; |
2b97eabc RP |
871 | } |
872 | ||
c6615082 NO |
873 | /* create new dapm dai link control */ |
874 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
875 | { | |
876 | int i, ret; | |
877 | struct snd_kcontrol *kcontrol; | |
878 | struct snd_soc_dapm_context *dapm = w->dapm; | |
879 | struct snd_card *card = dapm->card->snd_card; | |
880 | ||
881 | /* create control for links with > 1 config */ | |
882 | if (w->num_params <= 1) | |
883 | return 0; | |
884 | ||
885 | /* add kcontrol */ | |
886 | for (i = 0; i < w->num_kcontrols; i++) { | |
887 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
888 | w->name, NULL); | |
889 | ret = snd_ctl_add(card, kcontrol); | |
890 | if (ret < 0) { | |
891 | dev_err(dapm->dev, | |
892 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
893 | w->name, w->kcontrol_news[i].name, ret); | |
894 | return ret; | |
895 | } | |
896 | kcontrol->private_data = w; | |
897 | w->kcontrols[i] = kcontrol; | |
898 | } | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
9949788b MB |
903 | /* We implement power down on suspend by checking the power state of |
904 | * the ALSA card - when we are suspending the ALSA state for the card | |
905 | * is set to D3. | |
906 | */ | |
907 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
908 | { | |
12ea2c78 | 909 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 910 | |
f0fba2ad | 911 | switch (level) { |
9949788b MB |
912 | case SNDRV_CTL_POWER_D3hot: |
913 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 914 | if (widget->ignore_suspend) |
30a6a1a4 | 915 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 916 | widget->name); |
1547aba9 | 917 | return widget->ignore_suspend; |
9949788b MB |
918 | default: |
919 | return 1; | |
920 | } | |
921 | } | |
922 | ||
ec2e3031 LG |
923 | /* add widget to list if it's not already in the list */ |
924 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
925 | struct snd_soc_dapm_widget *w) | |
926 | { | |
927 | struct snd_soc_dapm_widget_list *wlist; | |
928 | int wlistsize, wlistentries, i; | |
929 | ||
930 | if (*list == NULL) | |
931 | return -EINVAL; | |
932 | ||
933 | wlist = *list; | |
934 | ||
935 | /* is this widget already in the list */ | |
936 | for (i = 0; i < wlist->num_widgets; i++) { | |
937 | if (wlist->widgets[i] == w) | |
938 | return 0; | |
939 | } | |
940 | ||
941 | /* allocate some new space */ | |
942 | wlistentries = wlist->num_widgets + 1; | |
943 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
944 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
945 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
946 | if (*list == NULL) { | |
30a6a1a4 | 947 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
948 | w->name); |
949 | return -ENOMEM; | |
950 | } | |
951 | wlist = *list; | |
952 | ||
953 | /* insert the widget */ | |
30a6a1a4 | 954 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
955 | w->name, wlist->num_widgets); |
956 | ||
957 | wlist->widgets[wlist->num_widgets] = w; | |
958 | wlist->num_widgets++; | |
959 | return 1; | |
960 | } | |
961 | ||
2b97eabc RP |
962 | /* |
963 | * Recursively check for a completed path to an active or physically connected | |
964 | * output widget. Returns number of complete paths. | |
965 | */ | |
ec2e3031 LG |
966 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
967 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
968 | { |
969 | struct snd_soc_dapm_path *path; | |
970 | int con = 0; | |
971 | ||
024dc078 MB |
972 | if (widget->outputs >= 0) |
973 | return widget->outputs; | |
974 | ||
de02d078 MB |
975 | DAPM_UPDATE_STAT(widget, path_checks); |
976 | ||
6dd98b0a LPC |
977 | if (widget->is_sink && widget->connected) { |
978 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
979 | return widget->outputs; | |
2b97eabc RP |
980 | } |
981 | ||
982 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
983 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
984 | ||
c1862c8b | 985 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
986 | continue; |
987 | ||
8af294b4 MB |
988 | if (path->walking) |
989 | return 1; | |
990 | ||
ec2e3031 LG |
991 | trace_snd_soc_dapm_output_path(widget, path); |
992 | ||
7ddd4cd5 | 993 | if (path->connect) { |
8af294b4 | 994 | path->walking = 1; |
ec2e3031 LG |
995 | |
996 | /* do we need to add this widget to the list ? */ | |
997 | if (list) { | |
998 | int err; | |
999 | err = dapm_list_add_widget(list, path->sink); | |
1000 | if (err < 0) { | |
30a6a1a4 LG |
1001 | dev_err(widget->dapm->dev, |
1002 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1003 | widget->name); |
8af294b4 | 1004 | path->walking = 0; |
ec2e3031 LG |
1005 | return con; |
1006 | } | |
1007 | } | |
1008 | ||
1009 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1010 | |
1011 | path->walking = 0; | |
2b97eabc RP |
1012 | } |
1013 | } | |
1014 | ||
024dc078 MB |
1015 | widget->outputs = con; |
1016 | ||
2b97eabc RP |
1017 | return con; |
1018 | } | |
1019 | ||
1020 | /* | |
1021 | * Recursively check for a completed path to an active or physically connected | |
1022 | * input widget. Returns number of complete paths. | |
1023 | */ | |
ec2e3031 LG |
1024 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1025 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1026 | { |
1027 | struct snd_soc_dapm_path *path; | |
1028 | int con = 0; | |
1029 | ||
024dc078 MB |
1030 | if (widget->inputs >= 0) |
1031 | return widget->inputs; | |
1032 | ||
de02d078 MB |
1033 | DAPM_UPDATE_STAT(widget, path_checks); |
1034 | ||
6dd98b0a LPC |
1035 | if (widget->is_source && widget->connected) { |
1036 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1037 | return widget->inputs; | |
2b97eabc RP |
1038 | } |
1039 | ||
1040 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1041 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1042 | ||
c1862c8b | 1043 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1044 | continue; |
1045 | ||
8af294b4 MB |
1046 | if (path->walking) |
1047 | return 1; | |
1048 | ||
ec2e3031 LG |
1049 | trace_snd_soc_dapm_input_path(widget, path); |
1050 | ||
7ddd4cd5 | 1051 | if (path->connect) { |
8af294b4 | 1052 | path->walking = 1; |
ec2e3031 LG |
1053 | |
1054 | /* do we need to add this widget to the list ? */ | |
1055 | if (list) { | |
1056 | int err; | |
90c6ce0d | 1057 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1058 | if (err < 0) { |
30a6a1a4 LG |
1059 | dev_err(widget->dapm->dev, |
1060 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1061 | widget->name); |
8af294b4 | 1062 | path->walking = 0; |
ec2e3031 LG |
1063 | return con; |
1064 | } | |
1065 | } | |
1066 | ||
1067 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1068 | |
1069 | path->walking = 0; | |
2b97eabc RP |
1070 | } |
1071 | } | |
1072 | ||
024dc078 MB |
1073 | widget->inputs = con; |
1074 | ||
2b97eabc RP |
1075 | return con; |
1076 | } | |
1077 | ||
ec2e3031 LG |
1078 | /** |
1079 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1080 | * @dai: the soc DAI. | |
1081 | * @stream: stream direction. | |
1082 | * @list: list of active widgets for this stream. | |
1083 | * | |
1084 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1085 | * the initial stream specified by name. This takes into account | |
1086 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1087 | * | |
1088 | * Returns the number of valid paths or negative error. | |
1089 | */ | |
1090 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1091 | struct snd_soc_dapm_widget_list **list) | |
1092 | { | |
313665b9 | 1093 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1094 | struct snd_soc_dapm_widget *w; |
ec2e3031 LG |
1095 | int paths; |
1096 | ||
1097 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1098 | |
1099 | /* | |
1100 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1101 | * to reset the cached number of inputs and outputs. | |
1102 | */ | |
1103 | list_for_each_entry(w, &card->widgets, list) { | |
1104 | w->inputs = -1; | |
1105 | w->outputs = -1; | |
1106 | } | |
ec2e3031 | 1107 | |
130897ac | 1108 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
ec2e3031 | 1109 | paths = is_connected_output_ep(dai->playback_widget, list); |
130897ac | 1110 | else |
d298caae | 1111 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
1112 | |
1113 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1114 | mutex_unlock(&card->dapm_mutex); |
1115 | ||
1116 | return paths; | |
1117 | } | |
1118 | ||
62ea874a MB |
1119 | /* |
1120 | * Handler for regulator supply widget. | |
1121 | */ | |
1122 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1123 | struct snd_kcontrol *kcontrol, int event) | |
1124 | { | |
c05b84d1 MB |
1125 | int ret; |
1126 | ||
eb270e98 MB |
1127 | soc_dapm_async_complete(w->dapm); |
1128 | ||
c05b84d1 | 1129 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1130 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1131 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1132 | if (ret != 0) |
1133 | dev_warn(w->dapm->dev, | |
30686c35 | 1134 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1135 | w->name, ret); |
1136 | } | |
1137 | ||
a3cc056b | 1138 | return regulator_enable(w->regulator); |
c05b84d1 | 1139 | } else { |
de9ba98b | 1140 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1141 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1142 | if (ret != 0) |
1143 | dev_warn(w->dapm->dev, | |
30686c35 | 1144 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1145 | w->name, ret); |
1146 | } | |
1147 | ||
a3cc056b | 1148 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1149 | } |
62ea874a MB |
1150 | } |
1151 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1152 | ||
d7e7eb91 OL |
1153 | /* |
1154 | * Handler for clock supply widget. | |
1155 | */ | |
1156 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1157 | struct snd_kcontrol *kcontrol, int event) | |
1158 | { | |
1159 | if (!w->clk) | |
1160 | return -EIO; | |
1161 | ||
eb270e98 MB |
1162 | soc_dapm_async_complete(w->dapm); |
1163 | ||
ec02995a | 1164 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1165 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1166 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1167 | } else { |
37c1b927 | 1168 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1169 | return 0; |
1170 | } | |
ec02995a | 1171 | #endif |
98b3cf12 | 1172 | return 0; |
d7e7eb91 OL |
1173 | } |
1174 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1175 | ||
d805002b MB |
1176 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1177 | { | |
9b8a83b2 MB |
1178 | if (w->power_checked) |
1179 | return w->new_power; | |
1180 | ||
d805002b | 1181 | if (w->force) |
9b8a83b2 | 1182 | w->new_power = 1; |
d805002b | 1183 | else |
9b8a83b2 MB |
1184 | w->new_power = w->power_check(w); |
1185 | ||
1186 | w->power_checked = true; | |
1187 | ||
1188 | return w->new_power; | |
d805002b MB |
1189 | } |
1190 | ||
cd0f2d47 MB |
1191 | /* Generic check to see if a widget should be powered. |
1192 | */ | |
1193 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1194 | { | |
1195 | int in, out; | |
1196 | ||
de02d078 MB |
1197 | DAPM_UPDATE_STAT(w, power_checks); |
1198 | ||
ec2e3031 | 1199 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1200 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1201 | return out != 0 && in != 0; |
1202 | } | |
1203 | ||
246d0a17 MB |
1204 | /* Check to see if a power supply is needed */ |
1205 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1206 | { | |
1207 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1208 | |
de02d078 MB |
1209 | DAPM_UPDATE_STAT(w, power_checks); |
1210 | ||
246d0a17 MB |
1211 | /* Check if one of our outputs is connected */ |
1212 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1213 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1214 | ||
bf3a9e13 MB |
1215 | if (path->weak) |
1216 | continue; | |
1217 | ||
215edda3 MB |
1218 | if (path->connected && |
1219 | !path->connected(path->source, path->sink)) | |
1220 | continue; | |
1221 | ||
f68d7e16 MB |
1222 | if (dapm_widget_power_check(path->sink)) |
1223 | return 1; | |
246d0a17 MB |
1224 | } |
1225 | ||
f68d7e16 | 1226 | return 0; |
246d0a17 MB |
1227 | } |
1228 | ||
35c64bca MB |
1229 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1230 | { | |
1231 | return 1; | |
1232 | } | |
1233 | ||
38357ab2 MB |
1234 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1235 | struct snd_soc_dapm_widget *b, | |
828a842f | 1236 | bool power_up) |
42aa3418 | 1237 | { |
828a842f MB |
1238 | int *sort; |
1239 | ||
1240 | if (power_up) | |
1241 | sort = dapm_up_seq; | |
1242 | else | |
1243 | sort = dapm_down_seq; | |
1244 | ||
38357ab2 MB |
1245 | if (sort[a->id] != sort[b->id]) |
1246 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1247 | if (a->subseq != b->subseq) { |
1248 | if (power_up) | |
1249 | return a->subseq - b->subseq; | |
1250 | else | |
1251 | return b->subseq - a->subseq; | |
1252 | } | |
b22ead2a MB |
1253 | if (a->reg != b->reg) |
1254 | return a->reg - b->reg; | |
84dab567 MB |
1255 | if (a->dapm != b->dapm) |
1256 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1257 | |
38357ab2 MB |
1258 | return 0; |
1259 | } | |
42aa3418 | 1260 | |
38357ab2 MB |
1261 | /* Insert a widget in order into a DAPM power sequence. */ |
1262 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1263 | struct list_head *list, | |
828a842f | 1264 | bool power_up) |
38357ab2 MB |
1265 | { |
1266 | struct snd_soc_dapm_widget *w; | |
1267 | ||
1268 | list_for_each_entry(w, list, power_list) | |
828a842f | 1269 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1270 | list_add_tail(&new_widget->power_list, &w->power_list); |
1271 | return; | |
1272 | } | |
1273 | ||
1274 | list_add_tail(&new_widget->power_list, list); | |
1275 | } | |
1276 | ||
95dd5cd6 | 1277 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1278 | struct snd_soc_dapm_widget *w, int event) |
1279 | { | |
68f89ad8 MB |
1280 | const char *ev_name; |
1281 | int power, ret; | |
1282 | ||
1283 | switch (event) { | |
1284 | case SND_SOC_DAPM_PRE_PMU: | |
1285 | ev_name = "PRE_PMU"; | |
1286 | power = 1; | |
1287 | break; | |
1288 | case SND_SOC_DAPM_POST_PMU: | |
1289 | ev_name = "POST_PMU"; | |
1290 | power = 1; | |
1291 | break; | |
1292 | case SND_SOC_DAPM_PRE_PMD: | |
1293 | ev_name = "PRE_PMD"; | |
1294 | power = 0; | |
1295 | break; | |
1296 | case SND_SOC_DAPM_POST_PMD: | |
1297 | ev_name = "POST_PMD"; | |
1298 | power = 0; | |
1299 | break; | |
80114129 MB |
1300 | case SND_SOC_DAPM_WILL_PMU: |
1301 | ev_name = "WILL_PMU"; | |
1302 | power = 1; | |
1303 | break; | |
1304 | case SND_SOC_DAPM_WILL_PMD: | |
1305 | ev_name = "WILL_PMD"; | |
1306 | power = 0; | |
1307 | break; | |
68f89ad8 | 1308 | default: |
a6ed0608 | 1309 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1310 | return; |
1311 | } | |
1312 | ||
39eb5fd1 | 1313 | if (w->new_power != power) |
68f89ad8 MB |
1314 | return; |
1315 | ||
1316 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1317 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1318 | w->name, ev_name); |
eb270e98 | 1319 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1320 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1321 | ret = w->event(w, NULL, event); |
84e90930 | 1322 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1323 | if (ret < 0) |
95dd5cd6 | 1324 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1325 | ev_name, w->name, ret); |
1326 | } | |
1327 | } | |
1328 | ||
b22ead2a | 1329 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1330 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1331 | struct list_head *pending) |
163cac06 | 1332 | { |
ce0fc93a | 1333 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1334 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1335 | int reg; |
b22ead2a MB |
1336 | unsigned int value = 0; |
1337 | unsigned int mask = 0; | |
b22ead2a | 1338 | |
ce0fc93a LPC |
1339 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1340 | reg = w->reg; | |
1341 | dapm = w->dapm; | |
b22ead2a MB |
1342 | |
1343 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1344 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1345 | w->power = w->new_power; |
b22ead2a | 1346 | |
de9ba98b LPC |
1347 | mask |= w->mask << w->shift; |
1348 | if (w->power) | |
1349 | value |= w->on_val << w->shift; | |
b22ead2a | 1350 | else |
de9ba98b | 1351 | value |= w->off_val << w->shift; |
b22ead2a | 1352 | |
ce0fc93a | 1353 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1354 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1355 | w->name, reg, value, mask); | |
81628103 | 1356 | |
68f89ad8 | 1357 | /* Check for events */ |
95dd5cd6 LPC |
1358 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1359 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1360 | } |
1361 | ||
1362 | if (reg >= 0) { | |
29376bc7 MB |
1363 | /* Any widget will do, they should all be updating the |
1364 | * same register. | |
1365 | */ | |
29376bc7 | 1366 | |
ce0fc93a | 1367 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1368 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1369 | value, mask, reg, card->pop_time); |
1370 | pop_wait(card->pop_time); | |
ce0fc93a | 1371 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1372 | } |
1373 | ||
81628103 | 1374 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1375 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1376 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1377 | } |
b22ead2a | 1378 | } |
42aa3418 | 1379 | |
b22ead2a MB |
1380 | /* Apply a DAPM power sequence. |
1381 | * | |
1382 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1383 | * order to minimise the number of writes to the device required | |
1384 | * multiple widgets will be updated in a single write where possible. | |
1385 | * Currently anything that requires more than a single write is not | |
1386 | * handled. | |
1387 | */ | |
95dd5cd6 LPC |
1388 | static void dapm_seq_run(struct snd_soc_card *card, |
1389 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1390 | { |
1391 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1392 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1393 | LIST_HEAD(pending); |
1394 | int cur_sort = -1; | |
20e4859d | 1395 | int cur_subseq = -1; |
b22ead2a | 1396 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1397 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1398 | int ret, i; |
828a842f MB |
1399 | int *sort; |
1400 | ||
1401 | if (power_up) | |
1402 | sort = dapm_up_seq; | |
1403 | else | |
1404 | sort = dapm_down_seq; | |
163cac06 | 1405 | |
b22ead2a MB |
1406 | list_for_each_entry_safe(w, n, list, power_list) { |
1407 | ret = 0; | |
1408 | ||
1409 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1410 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1411 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1412 | if (!list_empty(&pending)) |
95dd5cd6 | 1413 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1414 | |
474b62d6 MB |
1415 | if (cur_dapm && cur_dapm->seq_notifier) { |
1416 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1417 | if (sort[i] == cur_sort) | |
1418 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1419 | i, |
1420 | cur_subseq); | |
474b62d6 MB |
1421 | } |
1422 | ||
eb270e98 MB |
1423 | if (cur_dapm && w->dapm != cur_dapm) |
1424 | soc_dapm_async_complete(cur_dapm); | |
1425 | ||
b22ead2a MB |
1426 | INIT_LIST_HEAD(&pending); |
1427 | cur_sort = -1; | |
b0b3e6f8 | 1428 | cur_subseq = INT_MIN; |
b22ead2a | 1429 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1430 | cur_dapm = NULL; |
b22ead2a MB |
1431 | } |
1432 | ||
163cac06 MB |
1433 | switch (w->id) { |
1434 | case snd_soc_dapm_pre: | |
1435 | if (!w->event) | |
b22ead2a MB |
1436 | list_for_each_entry_safe_continue(w, n, list, |
1437 | power_list); | |
163cac06 | 1438 | |
b22ead2a | 1439 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1440 | ret = w->event(w, |
1441 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1442 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1443 | ret = w->event(w, |
1444 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1445 | break; |
1446 | ||
1447 | case snd_soc_dapm_post: | |
1448 | if (!w->event) | |
b22ead2a MB |
1449 | list_for_each_entry_safe_continue(w, n, list, |
1450 | power_list); | |
163cac06 | 1451 | |
b22ead2a | 1452 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1453 | ret = w->event(w, |
1454 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1455 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1456 | ret = w->event(w, |
1457 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1458 | break; |
1459 | ||
b22ead2a | 1460 | default: |
81628103 MB |
1461 | /* Queue it up for application */ |
1462 | cur_sort = sort[w->id]; | |
20e4859d | 1463 | cur_subseq = w->subseq; |
81628103 | 1464 | cur_reg = w->reg; |
7be31be8 | 1465 | cur_dapm = w->dapm; |
81628103 MB |
1466 | list_move(&w->power_list, &pending); |
1467 | break; | |
163cac06 | 1468 | } |
b22ead2a MB |
1469 | |
1470 | if (ret < 0) | |
f7d41ae8 | 1471 | dev_err(w->dapm->dev, |
30a6a1a4 | 1472 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1473 | } |
b22ead2a MB |
1474 | |
1475 | if (!list_empty(&pending)) | |
95dd5cd6 | 1476 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1477 | |
1478 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1479 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1480 | if (sort[i] == cur_sort) | |
1481 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1482 | i, cur_subseq); |
474b62d6 | 1483 | } |
eb270e98 MB |
1484 | |
1485 | list_for_each_entry(d, &card->dapm_list, list) { | |
1486 | soc_dapm_async_complete(d); | |
1487 | } | |
42aa3418 MB |
1488 | } |
1489 | ||
95dd5cd6 | 1490 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1491 | { |
95dd5cd6 | 1492 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1493 | struct snd_soc_dapm_widget_list *wlist; |
1494 | struct snd_soc_dapm_widget *w = NULL; | |
1495 | unsigned int wi; | |
97404f2e MB |
1496 | int ret; |
1497 | ||
57295073 | 1498 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1499 | return; |
1500 | ||
e84357f7 | 1501 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1502 | |
ce6cfaf1 LPC |
1503 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1504 | w = wlist->widgets[wi]; | |
1505 | ||
1506 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1507 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1508 | if (ret != 0) | |
95dd5cd6 | 1509 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1510 | w->name, ret); |
1511 | } | |
97404f2e MB |
1512 | } |
1513 | ||
ce6cfaf1 LPC |
1514 | if (!w) |
1515 | return; | |
1516 | ||
ce0fc93a LPC |
1517 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1518 | update->val); | |
97404f2e | 1519 | if (ret < 0) |
95dd5cd6 | 1520 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1521 | w->name, ret); |
97404f2e | 1522 | |
ce6cfaf1 LPC |
1523 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1524 | w = wlist->widgets[wi]; | |
1525 | ||
1526 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1527 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1528 | if (ret != 0) | |
95dd5cd6 | 1529 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1530 | w->name, ret); |
1531 | } | |
97404f2e MB |
1532 | } |
1533 | } | |
1534 | ||
9d0624a7 MB |
1535 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1536 | * they're changing state. | |
1537 | */ | |
1538 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1539 | { | |
1540 | struct snd_soc_dapm_context *d = data; | |
1541 | int ret; | |
1542 | ||
56fba41f MB |
1543 | /* If we're off and we're not supposed to be go into STANDBY */ |
1544 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1545 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1546 | if (d->dev) |
1547 | pm_runtime_get_sync(d->dev); | |
1548 | ||
9d0624a7 MB |
1549 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1550 | if (ret != 0) | |
1551 | dev_err(d->dev, | |
30a6a1a4 | 1552 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1553 | } |
1554 | ||
ce85a4d7 LPC |
1555 | /* Prepare for a transition to ON or away from ON */ |
1556 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1557 | d->bias_level != SND_SOC_BIAS_ON) || | |
1558 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1559 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1560 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1561 | if (ret != 0) | |
1562 | dev_err(d->dev, | |
30a6a1a4 | 1563 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1564 | } |
1565 | } | |
1566 | ||
1567 | /* Async callback run prior to DAPM sequences - brings to their final | |
1568 | * state. | |
1569 | */ | |
1570 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1571 | { | |
1572 | struct snd_soc_dapm_context *d = data; | |
1573 | int ret; | |
1574 | ||
1575 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1576 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1577 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1578 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1579 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1580 | if (ret != 0) | |
30a6a1a4 | 1581 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1582 | ret); |
1583 | } | |
97404f2e | 1584 | |
9d0624a7 | 1585 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1586 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1587 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1588 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1589 | if (ret != 0) | |
30a6a1a4 LG |
1590 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1591 | ret); | |
f1aac484 MB |
1592 | |
1593 | if (d->dev) | |
fb644e9c | 1594 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1595 | } |
1596 | ||
1597 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1598 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1599 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1600 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1601 | if (ret != 0) | |
30a6a1a4 | 1602 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1603 | ret); |
1604 | } | |
1605 | } | |
97404f2e | 1606 | |
fe4fda5d MB |
1607 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1608 | bool power, bool connect) | |
1609 | { | |
1610 | /* If a connection is being made or broken then that update | |
1611 | * will have marked the peer dirty, otherwise the widgets are | |
1612 | * not connected and this update has no impact. */ | |
1613 | if (!connect) | |
1614 | return; | |
1615 | ||
1616 | /* If the peer is already in the state we're moving to then we | |
1617 | * won't have an impact on it. */ | |
1618 | if (power != peer->power) | |
75c1f891 | 1619 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1620 | } |
1621 | ||
05623c43 MB |
1622 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1623 | struct list_head *up_list, | |
1624 | struct list_head *down_list) | |
1625 | { | |
db432b41 MB |
1626 | struct snd_soc_dapm_path *path; |
1627 | ||
05623c43 MB |
1628 | if (w->power == power) |
1629 | return; | |
1630 | ||
1631 | trace_snd_soc_dapm_widget_power(w, power); | |
1632 | ||
db432b41 | 1633 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1634 | * also. |
db432b41 | 1635 | */ |
7ddd4cd5 LPC |
1636 | list_for_each_entry(path, &w->sources, list_sink) |
1637 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1638 | ||
6dd98b0a LPC |
1639 | /* Supplies can't affect their outputs, only their inputs */ |
1640 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1641 | list_for_each_entry(path, &w->sinks, list_source) |
1642 | dapm_widget_set_peer_power(path->sink, power, | |
1643 | path->connect); | |
db432b41 MB |
1644 | } |
1645 | ||
05623c43 MB |
1646 | if (power) |
1647 | dapm_seq_insert(w, up_list, true); | |
1648 | else | |
1649 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1650 | } |
1651 | ||
7c81beb0 MB |
1652 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1653 | struct list_head *up_list, | |
1654 | struct list_head *down_list) | |
1655 | { | |
7c81beb0 MB |
1656 | int power; |
1657 | ||
1658 | switch (w->id) { | |
1659 | case snd_soc_dapm_pre: | |
1660 | dapm_seq_insert(w, down_list, false); | |
1661 | break; | |
1662 | case snd_soc_dapm_post: | |
1663 | dapm_seq_insert(w, up_list, true); | |
1664 | break; | |
1665 | ||
1666 | default: | |
d805002b | 1667 | power = dapm_widget_power_check(w); |
7c81beb0 | 1668 | |
05623c43 | 1669 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1670 | break; |
1671 | } | |
1672 | } | |
1673 | ||
86dbf2ac LPC |
1674 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1675 | { | |
1676 | if (dapm->idle_bias_off) | |
1677 | return true; | |
1678 | ||
1679 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1680 | case SNDRV_CTL_POWER_D3hot: | |
1681 | case SNDRV_CTL_POWER_D3cold: | |
1682 | return dapm->suspend_bias_off; | |
1683 | default: | |
1684 | break; | |
1685 | } | |
1686 | ||
1687 | return false; | |
1688 | } | |
1689 | ||
2b97eabc RP |
1690 | /* |
1691 | * Scan each dapm widget for complete audio path. | |
1692 | * A complete path is a route that has valid endpoints i.e.:- | |
1693 | * | |
1694 | * o DAC to output pin. | |
1695 | * o Input Pin to ADC. | |
1696 | * o Input pin to Output pin (bypass, sidetone) | |
1697 | * o DAC to ADC (loopback). | |
1698 | */ | |
95dd5cd6 | 1699 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1700 | { |
1701 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1702 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1703 | LIST_HEAD(up_list); |
1704 | LIST_HEAD(down_list); | |
2955b47d | 1705 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1706 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1707 | |
f9fa2b18 MB |
1708 | lockdep_assert_held(&card->dapm_mutex); |
1709 | ||
84e90930 MB |
1710 | trace_snd_soc_dapm_start(card); |
1711 | ||
56fba41f | 1712 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1713 | if (dapm_idle_bias_off(d)) |
497098be MB |
1714 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1715 | else | |
1716 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1717 | } |
7be31be8 | 1718 | |
6c120e19 | 1719 | dapm_reset(card); |
9b8a83b2 | 1720 | |
6d3ddc81 | 1721 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1722 | * lists indicating if they should be powered up or down. We |
1723 | * only check widgets that have been flagged as dirty but note | |
1724 | * that new widgets may be added to the dirty list while we | |
1725 | * iterate. | |
6d3ddc81 | 1726 | */ |
db432b41 | 1727 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1728 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1729 | } |
1730 | ||
f9de6d74 | 1731 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1732 | switch (w->id) { |
1733 | case snd_soc_dapm_pre: | |
1734 | case snd_soc_dapm_post: | |
1735 | /* These widgets always need to be powered */ | |
1736 | break; | |
1737 | default: | |
1738 | list_del_init(&w->dirty); | |
1739 | break; | |
1740 | } | |
db432b41 | 1741 | |
39eb5fd1 | 1742 | if (w->new_power) { |
f9de6d74 MB |
1743 | d = w->dapm; |
1744 | ||
1745 | /* Supplies and micbiases only bring the | |
1746 | * context up to STANDBY as unless something | |
1747 | * else is active and passing audio they | |
afe62367 MB |
1748 | * generally don't require full power. Signal |
1749 | * generators are virtual pins and have no | |
1750 | * power impact themselves. | |
f9de6d74 MB |
1751 | */ |
1752 | switch (w->id) { | |
afe62367 | 1753 | case snd_soc_dapm_siggen: |
da83fea6 | 1754 | case snd_soc_dapm_vmid: |
afe62367 | 1755 | break; |
f9de6d74 | 1756 | case snd_soc_dapm_supply: |
62ea874a | 1757 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1758 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1759 | case snd_soc_dapm_micbias: |
1760 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1761 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1762 | break; | |
1763 | default: | |
1764 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1765 | break; | |
1766 | } | |
1767 | } | |
1768 | ||
1769 | } | |
1770 | ||
85a843c5 MB |
1771 | /* Force all contexts in the card to the same bias state if |
1772 | * they're not ground referenced. | |
1773 | */ | |
56fba41f | 1774 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1775 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1776 | if (d->target_bias_level > bias) |
1777 | bias = d->target_bias_level; | |
52ba67bf | 1778 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1779 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1780 | d->target_bias_level = bias; |
52ba67bf | 1781 | |
de02d078 | 1782 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1783 | |
17282ba4 XX |
1784 | /* Run card bias changes at first */ |
1785 | dapm_pre_sequence_async(&card->dapm, 0); | |
1786 | /* Run other bias changes in parallel */ | |
1787 | list_for_each_entry(d, &card->dapm_list, list) { | |
1788 | if (d != &card->dapm) | |
1789 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1790 | &async_domain); | |
1791 | } | |
9d0624a7 | 1792 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1793 | |
cf1f7c6e | 1794 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1795 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1796 | } |
1797 | ||
cf1f7c6e | 1798 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1799 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1800 | } |
1801 | ||
6d3ddc81 | 1802 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1803 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1804 | |
95dd5cd6 | 1805 | dapm_widget_update(card); |
97404f2e | 1806 | |
6d3ddc81 | 1807 | /* Now power up. */ |
95dd5cd6 | 1808 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1809 | |
9d0624a7 | 1810 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1811 | list_for_each_entry(d, &card->dapm_list, list) { |
1812 | if (d != &card->dapm) | |
1813 | async_schedule_domain(dapm_post_sequence_async, d, | |
1814 | &async_domain); | |
1815 | } | |
9d0624a7 | 1816 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1817 | /* Run card bias changes at last */ |
1818 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1819 | |
8078d87f LG |
1820 | /* do we need to notify any clients that DAPM event is complete */ |
1821 | list_for_each_entry(d, &card->dapm_list, list) { | |
1822 | if (d->stream_event) | |
1823 | d->stream_event(d, event); | |
1824 | } | |
1825 | ||
95dd5cd6 | 1826 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1827 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1828 | pop_wait(card->pop_time); |
cb507e7e | 1829 | |
84e90930 MB |
1830 | trace_snd_soc_dapm_done(card); |
1831 | ||
42aa3418 | 1832 | return 0; |
2b97eabc RP |
1833 | } |
1834 | ||
79fb9387 | 1835 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1836 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1837 | char __user *user_buf, | |
1838 | size_t count, loff_t *ppos) | |
1839 | { | |
1840 | struct snd_soc_dapm_widget *w = file->private_data; | |
1841 | char *buf; | |
1842 | int in, out; | |
1843 | ssize_t ret; | |
1844 | struct snd_soc_dapm_path *p = NULL; | |
1845 | ||
1846 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1847 | if (!buf) | |
1848 | return -ENOMEM; | |
1849 | ||
c1862c8b LPC |
1850 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1851 | if (w->is_supply) { | |
1852 | in = 0; | |
1853 | out = 0; | |
1854 | } else { | |
1855 | in = is_connected_input_ep(w, NULL); | |
1856 | out = is_connected_output_ep(w, NULL); | |
1857 | } | |
79fb9387 | 1858 | |
f13ebada MB |
1859 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1860 | w->name, w->power ? "On" : "Off", | |
1861 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1862 | |
d033c36a MB |
1863 | if (w->reg >= 0) |
1864 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1865 | " - R%d(0x%x) mask 0x%x", |
1866 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1867 | |
1868 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1869 | ||
3eef08ba MB |
1870 | if (w->sname) |
1871 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1872 | w->sname, | |
1873 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1874 | |
1875 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1876 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1877 | continue; |
1878 | ||
79fb9387 MB |
1879 | if (p->connect) |
1880 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1881 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1882 | p->name ? p->name : "static", |
1883 | p->source->name); | |
1884 | } | |
1885 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1886 | if (p->connected && !p->connected(w, p->sink)) |
1887 | continue; | |
1888 | ||
79fb9387 MB |
1889 | if (p->connect) |
1890 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1891 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1892 | p->name ? p->name : "static", |
1893 | p->sink->name); | |
1894 | } | |
1895 | ||
1896 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1897 | ||
1898 | kfree(buf); | |
1899 | return ret; | |
1900 | } | |
1901 | ||
1902 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1903 | .open = simple_open, |
79fb9387 | 1904 | .read = dapm_widget_power_read_file, |
6038f373 | 1905 | .llseek = default_llseek, |
79fb9387 MB |
1906 | }; |
1907 | ||
ef49e4fa MB |
1908 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1909 | size_t count, loff_t *ppos) | |
1910 | { | |
1911 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1912 | char *level; | |
1913 | ||
1914 | switch (dapm->bias_level) { | |
1915 | case SND_SOC_BIAS_ON: | |
1916 | level = "On\n"; | |
1917 | break; | |
1918 | case SND_SOC_BIAS_PREPARE: | |
1919 | level = "Prepare\n"; | |
1920 | break; | |
1921 | case SND_SOC_BIAS_STANDBY: | |
1922 | level = "Standby\n"; | |
1923 | break; | |
1924 | case SND_SOC_BIAS_OFF: | |
1925 | level = "Off\n"; | |
1926 | break; | |
1927 | default: | |
a6ed0608 | 1928 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1929 | level = "Unknown\n"; |
1930 | break; | |
1931 | } | |
1932 | ||
1933 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1934 | strlen(level)); | |
1935 | } | |
1936 | ||
1937 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1938 | .open = simple_open, |
ef49e4fa MB |
1939 | .read = dapm_bias_read_file, |
1940 | .llseek = default_llseek, | |
1941 | }; | |
1942 | ||
8eecaf62 LPC |
1943 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1944 | struct dentry *parent) | |
79fb9387 | 1945 | { |
79fb9387 MB |
1946 | struct dentry *d; |
1947 | ||
6553bf06 LPC |
1948 | if (!parent) |
1949 | return; | |
1950 | ||
8eecaf62 LPC |
1951 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1952 | ||
1953 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1954 | dev_warn(dapm->dev, |
30a6a1a4 | 1955 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1956 | return; |
8eecaf62 | 1957 | } |
79fb9387 | 1958 | |
ef49e4fa MB |
1959 | d = debugfs_create_file("bias_level", 0444, |
1960 | dapm->debugfs_dapm, dapm, | |
1961 | &dapm_bias_fops); | |
1962 | if (!d) | |
1963 | dev_warn(dapm->dev, | |
1964 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1965 | } |
ef49e4fa | 1966 | |
d5d1e0be LPC |
1967 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1968 | { | |
1969 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1970 | struct dentry *d; | |
79fb9387 | 1971 | |
d5d1e0be LPC |
1972 | if (!dapm->debugfs_dapm || !w->name) |
1973 | return; | |
1974 | ||
1975 | d = debugfs_create_file(w->name, 0444, | |
1976 | dapm->debugfs_dapm, w, | |
1977 | &dapm_widget_power_fops); | |
1978 | if (!d) | |
1979 | dev_warn(w->dapm->dev, | |
1980 | "ASoC: Failed to create %s debugfs file\n", | |
1981 | w->name); | |
79fb9387 | 1982 | } |
d5d1e0be | 1983 | |
6c45e126 LPC |
1984 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1985 | { | |
1986 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1987 | } | |
1988 | ||
79fb9387 | 1989 | #else |
8eecaf62 LPC |
1990 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1991 | struct dentry *parent) | |
79fb9387 MB |
1992 | { |
1993 | } | |
d5d1e0be LPC |
1994 | |
1995 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1996 | { | |
1997 | } | |
1998 | ||
6c45e126 LPC |
1999 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2000 | { | |
2001 | } | |
2002 | ||
79fb9387 MB |
2003 | #endif |
2004 | ||
4a201948 LPC |
2005 | /* |
2006 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2007 | * @path: The path to update | |
2008 | * @connect: The new connect state of the path. True if the path is connected, | |
2009 | * false if it is disconneted. | |
2010 | * @reason: The reason why the path changed (for debugging only) | |
2011 | */ | |
2012 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2013 | bool connect, const char *reason) | |
2014 | { | |
2015 | if (path->connect == connect) | |
2016 | return; | |
2017 | ||
2018 | path->connect = connect; | |
2019 | dapm_mark_dirty(path->source, reason); | |
2020 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2021 | dapm_path_invalidate(path); |
4a201948 LPC |
2022 | } |
2023 | ||
2b97eabc | 2024 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2025 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2026 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2027 | { |
2028 | struct snd_soc_dapm_path *path; | |
2029 | int found = 0; | |
4a201948 | 2030 | bool connect; |
2b97eabc | 2031 | |
f9fa2b18 MB |
2032 | lockdep_assert_held(&card->dapm_mutex); |
2033 | ||
2b97eabc | 2034 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2035 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2036 | found = 1; |
2037 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2038 | if (!(strcmp(path->name, e->texts[mux]))) |
2039 | connect = true; | |
2040 | else | |
2041 | connect = false; | |
2042 | ||
2043 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2044 | } |
2045 | ||
ce6cfaf1 | 2046 | if (found) |
95dd5cd6 | 2047 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2048 | |
618dae11 | 2049 | return found; |
2b97eabc | 2050 | } |
4edbb345 | 2051 | |
ce6cfaf1 | 2052 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2053 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2054 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2055 | { |
ce6cfaf1 | 2056 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2057 | int ret; |
2058 | ||
3cd04343 | 2059 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2060 | card->update = update; |
95dd5cd6 | 2061 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2062 | card->update = NULL; |
4edbb345 | 2063 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2064 | if (ret > 0) |
c3f48ae6 | 2065 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2066 | return ret; |
2067 | } | |
40f02cd9 | 2068 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2069 | |
1b075e3f | 2070 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2071 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2072 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2073 | { |
2074 | struct snd_soc_dapm_path *path; | |
2075 | int found = 0; | |
2076 | ||
f9fa2b18 MB |
2077 | lockdep_assert_held(&card->dapm_mutex); |
2078 | ||
2b97eabc | 2079 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2080 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2081 | found = 1; |
4a201948 | 2082 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2083 | } |
2084 | ||
ce6cfaf1 | 2085 | if (found) |
95dd5cd6 | 2086 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2087 | |
618dae11 | 2088 | return found; |
2b97eabc | 2089 | } |
4edbb345 | 2090 | |
ce6cfaf1 | 2091 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2092 | struct snd_kcontrol *kcontrol, int connect, |
2093 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2094 | { |
ce6cfaf1 | 2095 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2096 | int ret; |
2097 | ||
3cd04343 | 2098 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2099 | card->update = update; |
95dd5cd6 | 2100 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2101 | card->update = NULL; |
4edbb345 | 2102 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2103 | if (ret > 0) |
c3f48ae6 | 2104 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2105 | return ret; |
2106 | } | |
40f02cd9 | 2107 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2108 | |
44ba2641 | 2109 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2110 | { |
2b97eabc RP |
2111 | struct snd_soc_dapm_widget *w; |
2112 | int count = 0; | |
2113 | char *state = "not set"; | |
2114 | ||
00200107 | 2115 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2116 | if (w->dapm != &codec->dapm) |
2117 | continue; | |
2b97eabc RP |
2118 | |
2119 | /* only display widgets that burnm power */ | |
2120 | switch (w->id) { | |
2121 | case snd_soc_dapm_hp: | |
2122 | case snd_soc_dapm_mic: | |
2123 | case snd_soc_dapm_spk: | |
2124 | case snd_soc_dapm_line: | |
2125 | case snd_soc_dapm_micbias: | |
2126 | case snd_soc_dapm_dac: | |
2127 | case snd_soc_dapm_adc: | |
2128 | case snd_soc_dapm_pga: | |
d88429a6 | 2129 | case snd_soc_dapm_out_drv: |
2b97eabc | 2130 | case snd_soc_dapm_mixer: |
ca9c1aae | 2131 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2132 | case snd_soc_dapm_supply: |
62ea874a | 2133 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2134 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2135 | if (w->name) |
2136 | count += sprintf(buf + count, "%s: %s\n", | |
2137 | w->name, w->power ? "On":"Off"); | |
2138 | break; | |
2139 | default: | |
2140 | break; | |
2141 | } | |
2142 | } | |
2143 | ||
ce6120cc | 2144 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2145 | case SND_SOC_BIAS_ON: |
2146 | state = "On"; | |
2b97eabc | 2147 | break; |
0be9898a MB |
2148 | case SND_SOC_BIAS_PREPARE: |
2149 | state = "Prepare"; | |
2b97eabc | 2150 | break; |
0be9898a MB |
2151 | case SND_SOC_BIAS_STANDBY: |
2152 | state = "Standby"; | |
2b97eabc | 2153 | break; |
0be9898a MB |
2154 | case SND_SOC_BIAS_OFF: |
2155 | state = "Off"; | |
2b97eabc RP |
2156 | break; |
2157 | } | |
2158 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2159 | ||
2160 | return count; | |
2161 | } | |
2162 | ||
44ba2641 BC |
2163 | /* show dapm widget status in sys fs */ |
2164 | static ssize_t dapm_widget_show(struct device *dev, | |
2165 | struct device_attribute *attr, char *buf) | |
2166 | { | |
2167 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2168 | int i, count = 0; | |
2169 | ||
2170 | for (i = 0; i < rtd->num_codecs; i++) { | |
2171 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2172 | count += dapm_widget_show_codec(codec, buf + count); | |
2173 | } | |
2174 | ||
2175 | return count; | |
2176 | } | |
2177 | ||
2b97eabc RP |
2178 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2179 | ||
d29697dc TI |
2180 | struct attribute *soc_dapm_dev_attrs[] = { |
2181 | &dev_attr_dapm_widget.attr, | |
2182 | NULL | |
2183 | }; | |
2b97eabc | 2184 | |
8872293f LPC |
2185 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2186 | { | |
2187 | list_del(&path->list_sink); | |
2188 | list_del(&path->list_source); | |
5106b92f | 2189 | list_del(&path->list_kcontrol); |
8872293f | 2190 | list_del(&path->list); |
8872293f LPC |
2191 | kfree(path); |
2192 | } | |
2193 | ||
2b97eabc | 2194 | /* free all dapm widgets and resources */ |
ce6120cc | 2195 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2196 | { |
2197 | struct snd_soc_dapm_widget *w, *next_w; | |
2198 | struct snd_soc_dapm_path *p, *next_p; | |
2199 | ||
97c866de JN |
2200 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2201 | if (w->dapm != dapm) | |
2202 | continue; | |
2b97eabc | 2203 | list_del(&w->list); |
8ddab3f5 JN |
2204 | /* |
2205 | * remove source and sink paths associated to this widget. | |
2206 | * While removing the path, remove reference to it from both | |
2207 | * source and sink widgets so that path is removed only once. | |
2208 | */ | |
8872293f LPC |
2209 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2210 | dapm_free_path(p); | |
2211 | ||
2212 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2213 | dapm_free_path(p); | |
2214 | ||
fad59888 | 2215 | kfree(w->kcontrols); |
ead9b919 | 2216 | kfree(w->name); |
2b97eabc RP |
2217 | kfree(w); |
2218 | } | |
2b97eabc RP |
2219 | } |
2220 | ||
91a5fca4 LPC |
2221 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2222 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2223 | bool search_other_contexts) | |
a5302181 LG |
2224 | { |
2225 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2226 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2227 | |
97c866de | 2228 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2229 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2230 | if (w->dapm == dapm) |
2231 | return w; | |
2232 | else | |
2233 | fallback = w; | |
a5302181 LG |
2234 | } |
2235 | } | |
2236 | ||
91a5fca4 LPC |
2237 | if (search_other_contexts) |
2238 | return fallback; | |
2239 | ||
2240 | return NULL; | |
2241 | } | |
2242 | ||
2243 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2244 | const char *pin, int status) | |
2245 | { | |
2246 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2247 | ||
f9fa2b18 MB |
2248 | dapm_assert_locked(dapm); |
2249 | ||
91a5fca4 | 2250 | if (!w) { |
30a6a1a4 | 2251 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2252 | return -EINVAL; |
0d86733c MB |
2253 | } |
2254 | ||
92a99ea4 | 2255 | if (w->connected != status) { |
1a8b2d9d | 2256 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2257 | dapm_widget_invalidate_input_paths(w); |
2258 | dapm_widget_invalidate_output_paths(w); | |
2259 | } | |
1a8b2d9d | 2260 | |
91a5fca4 LPC |
2261 | w->connected = status; |
2262 | if (status == 0) | |
2263 | w->force = 0; | |
2264 | ||
2265 | return 0; | |
a5302181 LG |
2266 | } |
2267 | ||
2b97eabc | 2268 | /** |
3eb29dfb | 2269 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2270 | * @dapm: DAPM context |
2b97eabc RP |
2271 | * |
2272 | * Walks all dapm audio paths and powers widgets according to their | |
2273 | * stream or path usage. | |
2274 | * | |
3eb29dfb CK |
2275 | * Requires external locking. |
2276 | * | |
2b97eabc RP |
2277 | * Returns 0 for success. |
2278 | */ | |
3eb29dfb | 2279 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2280 | { |
4f4c0072 MB |
2281 | /* |
2282 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2283 | * silly DAPM runs during card startup. | |
2284 | */ | |
2285 | if (!dapm->card || !dapm->card->instantiated) | |
2286 | return 0; | |
2287 | ||
3eb29dfb CK |
2288 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2289 | } | |
2290 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2291 | ||
2292 | /** | |
2293 | * snd_soc_dapm_sync - scan and power dapm paths | |
2294 | * @dapm: DAPM context | |
2295 | * | |
2296 | * Walks all dapm audio paths and powers widgets according to their | |
2297 | * stream or path usage. | |
2298 | * | |
2299 | * Returns 0 for success. | |
2300 | */ | |
2301 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2302 | { | |
2303 | int ret; | |
2304 | ||
3cd04343 | 2305 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2306 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2307 | mutex_unlock(&dapm->card->dapm_mutex); |
2308 | return ret; | |
2b97eabc | 2309 | } |
a5302181 | 2310 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2311 | |
6dd98b0a LPC |
2312 | /* |
2313 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2314 | * @w: The widget for which to update the flags | |
2315 | * | |
2316 | * Some widgets have a dynamic category which depends on which neighbors they | |
2317 | * are connected to. This function update the category for these widgets. | |
2318 | * | |
2319 | * This function must be called whenever a path is added or removed to a widget. | |
2320 | */ | |
2321 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2322 | { | |
2323 | struct snd_soc_dapm_path *p; | |
2324 | ||
2325 | switch (w->id) { | |
2326 | case snd_soc_dapm_input: | |
86d75003 LPC |
2327 | /* On a fully routed card a input is never a source */ |
2328 | if (w->dapm->card->fully_routed) | |
2329 | break; | |
6dd98b0a LPC |
2330 | w->is_source = 1; |
2331 | list_for_each_entry(p, &w->sources, list_sink) { | |
2332 | if (p->source->id == snd_soc_dapm_micbias || | |
2333 | p->source->id == snd_soc_dapm_mic || | |
2334 | p->source->id == snd_soc_dapm_line || | |
2335 | p->source->id == snd_soc_dapm_output) { | |
2336 | w->is_source = 0; | |
2337 | break; | |
2338 | } | |
2339 | } | |
2340 | break; | |
2341 | case snd_soc_dapm_output: | |
86d75003 LPC |
2342 | /* On a fully routed card a output is never a sink */ |
2343 | if (w->dapm->card->fully_routed) | |
2344 | break; | |
6dd98b0a LPC |
2345 | w->is_sink = 1; |
2346 | list_for_each_entry(p, &w->sinks, list_source) { | |
2347 | if (p->sink->id == snd_soc_dapm_spk || | |
2348 | p->sink->id == snd_soc_dapm_hp || | |
2349 | p->sink->id == snd_soc_dapm_line || | |
2350 | p->sink->id == snd_soc_dapm_input) { | |
2351 | w->is_sink = 0; | |
2352 | break; | |
2353 | } | |
2354 | } | |
2355 | break; | |
2356 | case snd_soc_dapm_line: | |
2357 | w->is_sink = !list_empty(&w->sources); | |
2358 | w->is_source = !list_empty(&w->sinks); | |
2359 | break; | |
2360 | default: | |
2361 | break; | |
2362 | } | |
2363 | } | |
2364 | ||
2553628e LPC |
2365 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2366 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2367 | const char *control, | |
2368 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2369 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2370 | { |
2371 | struct snd_soc_dapm_path *path; | |
2553628e | 2372 | int ret; |
2b97eabc | 2373 | |
e409dfbf LPC |
2374 | if (wsink->is_supply && !wsource->is_supply) { |
2375 | dev_err(dapm->dev, | |
2376 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2377 | wsource->name, wsink->name); | |
2378 | return -EINVAL; | |
2379 | } | |
2380 | ||
2381 | if (connected && !wsource->is_supply) { | |
2382 | dev_err(dapm->dev, | |
2383 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2384 | wsource->name, wsink->name); | |
2385 | return -EINVAL; | |
2386 | } | |
2387 | ||
2388 | if (wsource->is_supply && control) { | |
2389 | dev_err(dapm->dev, | |
2390 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2391 | wsource->name, control, wsink->name); | |
2392 | return -EINVAL; | |
2393 | } | |
2394 | ||
2b97eabc RP |
2395 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2396 | if (!path) | |
2397 | return -ENOMEM; | |
2398 | ||
2399 | path->source = wsource; | |
2400 | path->sink = wsink; | |
2553628e | 2401 | path->connected = connected; |
2b97eabc | 2402 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2403 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2404 | INIT_LIST_HEAD(&path->list_source); |
2405 | INIT_LIST_HEAD(&path->list_sink); | |
2406 | ||
c1862c8b LPC |
2407 | if (wsource->is_supply || wsink->is_supply) |
2408 | path->is_supply = 1; | |
2409 | ||
2b97eabc RP |
2410 | /* connect static paths */ |
2411 | if (control == NULL) { | |
2b97eabc | 2412 | path->connect = 1; |
5fe5b767 LPC |
2413 | } else { |
2414 | /* connect dynamic paths */ | |
2415 | switch (wsink->id) { | |
2416 | case snd_soc_dapm_mux: | |
2417 | ret = dapm_connect_mux(dapm, path, control); | |
2418 | if (ret != 0) | |
2419 | goto err; | |
2420 | break; | |
2421 | case snd_soc_dapm_switch: | |
2422 | case snd_soc_dapm_mixer: | |
2423 | case snd_soc_dapm_mixer_named_ctl: | |
2424 | ret = dapm_connect_mixer(dapm, path, control); | |
2425 | if (ret != 0) | |
2426 | goto err; | |
2427 | break; | |
2428 | default: | |
2429 | dev_err(dapm->dev, | |
2430 | "Control not supported for path %s -> [%s] -> %s\n", | |
2431 | wsource->name, control, wsink->name); | |
2432 | ret = -EINVAL; | |
2b97eabc | 2433 | goto err; |
5fe5b767 | 2434 | } |
2b97eabc | 2435 | } |
fabd0384 | 2436 | |
5fe5b767 LPC |
2437 | list_add(&path->list, &dapm->card->paths); |
2438 | list_add(&path->list_sink, &wsink->sources); | |
2439 | list_add(&path->list_source, &wsource->sinks); | |
2440 | ||
6dd98b0a LPC |
2441 | dapm_update_widget_flags(wsource); |
2442 | dapm_update_widget_flags(wsink); | |
2443 | ||
5fe5b767 LPC |
2444 | dapm_mark_dirty(wsource, "Route added"); |
2445 | dapm_mark_dirty(wsink, "Route added"); | |
2446 | ||
92a99ea4 LPC |
2447 | if (dapm->card->instantiated && path->connect) |
2448 | dapm_path_invalidate(path); | |
2449 | ||
2b97eabc | 2450 | return 0; |
2553628e LPC |
2451 | err: |
2452 | kfree(path); | |
2453 | return ret; | |
2454 | } | |
2b97eabc | 2455 | |
2553628e | 2456 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2457 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2458 | { |
2459 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2460 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2461 | const char *sink; | |
2462 | const char *source; | |
2463 | char prefixed_sink[80]; | |
2464 | char prefixed_source[80]; | |
94f99c87 | 2465 | const char *prefix; |
2553628e LPC |
2466 | int ret; |
2467 | ||
94f99c87 LPC |
2468 | prefix = soc_dapm_prefix(dapm); |
2469 | if (prefix) { | |
2553628e | 2470 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2471 | prefix, route->sink); |
2553628e LPC |
2472 | sink = prefixed_sink; |
2473 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2474 | prefix, route->source); |
2553628e LPC |
2475 | source = prefixed_source; |
2476 | } else { | |
2477 | sink = route->sink; | |
2478 | source = route->source; | |
2479 | } | |
2480 | ||
2481 | /* | |
2482 | * find src and dest widgets over all widgets but favor a widget from | |
2483 | * current DAPM context | |
2484 | */ | |
2485 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2486 | if (!wsink && !(strcmp(w->name, sink))) { | |
2487 | wtsink = w; | |
2488 | if (w->dapm == dapm) | |
2489 | wsink = w; | |
2490 | continue; | |
2491 | } | |
2492 | if (!wsource && !(strcmp(w->name, source))) { | |
2493 | wtsource = w; | |
2494 | if (w->dapm == dapm) | |
2495 | wsource = w; | |
2496 | } | |
2497 | } | |
2498 | /* use widget from another DAPM context if not found from this */ | |
2499 | if (!wsink) | |
2500 | wsink = wtsink; | |
2501 | if (!wsource) | |
2502 | wsource = wtsource; | |
2503 | ||
2504 | if (wsource == NULL) { | |
2505 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2506 | route->source); | |
2507 | return -ENODEV; | |
2508 | } | |
2509 | if (wsink == NULL) { | |
2510 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2511 | route->sink); | |
2512 | return -ENODEV; | |
2513 | } | |
2514 | ||
2515 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2516 | route->connected); | |
2517 | if (ret) | |
2518 | goto err; | |
2519 | ||
2520 | return 0; | |
2b97eabc | 2521 | err: |
30a6a1a4 | 2522 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2523 | source, route->control, sink); |
2b97eabc RP |
2524 | return ret; |
2525 | } | |
105f1c28 | 2526 | |
efcc3c61 MB |
2527 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2528 | const struct snd_soc_dapm_route *route) | |
2529 | { | |
6dd98b0a | 2530 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2531 | struct snd_soc_dapm_path *path, *p; |
2532 | const char *sink; | |
2533 | const char *source; | |
2534 | char prefixed_sink[80]; | |
2535 | char prefixed_source[80]; | |
94f99c87 | 2536 | const char *prefix; |
efcc3c61 MB |
2537 | |
2538 | if (route->control) { | |
2539 | dev_err(dapm->dev, | |
30a6a1a4 | 2540 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2541 | return -EINVAL; |
2542 | } | |
2543 | ||
94f99c87 LPC |
2544 | prefix = soc_dapm_prefix(dapm); |
2545 | if (prefix) { | |
efcc3c61 | 2546 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2547 | prefix, route->sink); |
efcc3c61 MB |
2548 | sink = prefixed_sink; |
2549 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2550 | prefix, route->source); |
efcc3c61 MB |
2551 | source = prefixed_source; |
2552 | } else { | |
2553 | sink = route->sink; | |
2554 | source = route->source; | |
2555 | } | |
2556 | ||
2557 | path = NULL; | |
2558 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2559 | if (strcmp(p->source->name, source) != 0) | |
2560 | continue; | |
2561 | if (strcmp(p->sink->name, sink) != 0) | |
2562 | continue; | |
2563 | path = p; | |
2564 | break; | |
2565 | } | |
2566 | ||
2567 | if (path) { | |
6dd98b0a LPC |
2568 | wsource = path->source; |
2569 | wsink = path->sink; | |
2570 | ||
2571 | dapm_mark_dirty(wsource, "Route removed"); | |
2572 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2573 | if (path->connect) |
2574 | dapm_path_invalidate(path); | |
efcc3c61 | 2575 | |
8872293f | 2576 | dapm_free_path(path); |
6dd98b0a LPC |
2577 | |
2578 | /* Update any path related flags */ | |
2579 | dapm_update_widget_flags(wsource); | |
2580 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2581 | } else { |
30a6a1a4 | 2582 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2583 | source, sink); |
2584 | } | |
2585 | ||
2586 | return 0; | |
2587 | } | |
2588 | ||
105f1c28 MB |
2589 | /** |
2590 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2591 | * @dapm: DAPM context |
105f1c28 MB |
2592 | * @route: audio routes |
2593 | * @num: number of routes | |
2594 | * | |
2595 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2596 | * the widget receiving the audio signal, whilst the source is the sender | |
2597 | * of the audio signal. | |
2598 | * | |
2599 | * Returns 0 for success else error. On error all resources can be freed | |
2600 | * with a call to snd_soc_card_free(). | |
2601 | */ | |
ce6120cc | 2602 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2603 | const struct snd_soc_dapm_route *route, int num) |
2604 | { | |
62d4a4b9 | 2605 | int i, r, ret = 0; |
105f1c28 | 2606 | |
a73fb2df | 2607 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2608 | for (i = 0; i < num; i++) { |
a4e9154c | 2609 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2610 | if (r < 0) { |
30a6a1a4 LG |
2611 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2612 | route->source, | |
2613 | route->control ? route->control : "direct", | |
2614 | route->sink); | |
62d4a4b9 | 2615 | ret = r; |
105f1c28 MB |
2616 | } |
2617 | route++; | |
2618 | } | |
a73fb2df | 2619 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2620 | |
60884c27 | 2621 | return ret; |
105f1c28 MB |
2622 | } |
2623 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2624 | ||
efcc3c61 MB |
2625 | /** |
2626 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2627 | * @dapm: DAPM context | |
2628 | * @route: audio routes | |
2629 | * @num: number of routes | |
2630 | * | |
2631 | * Removes routes from the DAPM context. | |
2632 | */ | |
2633 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2634 | const struct snd_soc_dapm_route *route, int num) | |
2635 | { | |
2636 | int i, ret = 0; | |
2637 | ||
2638 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2639 | for (i = 0; i < num; i++) { | |
2640 | snd_soc_dapm_del_route(dapm, route); | |
2641 | route++; | |
2642 | } | |
2643 | mutex_unlock(&dapm->card->dapm_mutex); | |
2644 | ||
2645 | return ret; | |
2646 | } | |
2647 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2648 | ||
bf3a9e13 MB |
2649 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2650 | const struct snd_soc_dapm_route *route) | |
2651 | { | |
2652 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2653 | route->source, | |
2654 | true); | |
2655 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2656 | route->sink, | |
2657 | true); | |
2658 | struct snd_soc_dapm_path *path; | |
2659 | int count = 0; | |
2660 | ||
2661 | if (!source) { | |
30a6a1a4 | 2662 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2663 | route->source); |
2664 | return -ENODEV; | |
2665 | } | |
2666 | ||
2667 | if (!sink) { | |
30a6a1a4 | 2668 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2669 | route->sink); |
2670 | return -ENODEV; | |
2671 | } | |
2672 | ||
2673 | if (route->control || route->connected) | |
30a6a1a4 | 2674 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2675 | route->source, route->sink); |
2676 | ||
2677 | list_for_each_entry(path, &source->sinks, list_source) { | |
2678 | if (path->sink == sink) { | |
2679 | path->weak = 1; | |
2680 | count++; | |
2681 | } | |
2682 | } | |
2683 | ||
2684 | if (count == 0) | |
30a6a1a4 | 2685 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2686 | route->source, route->sink); |
2687 | if (count > 1) | |
30a6a1a4 | 2688 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2689 | count, route->source, route->sink); |
2690 | ||
2691 | return 0; | |
2692 | } | |
2693 | ||
2694 | /** | |
2695 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2696 | * @dapm: DAPM context | |
2697 | * @route: audio routes | |
2698 | * @num: number of routes | |
2699 | * | |
2700 | * Mark existing routes matching those specified in the passed array | |
2701 | * as being weak, meaning that they are ignored for the purpose of | |
2702 | * power decisions. The main intended use case is for sidetone paths | |
2703 | * which couple audio between other independent paths if they are both | |
2704 | * active in order to make the combination work better at the user | |
2705 | * level but which aren't intended to be "used". | |
2706 | * | |
2707 | * Note that CODEC drivers should not use this as sidetone type paths | |
2708 | * can frequently also be used as bypass paths. | |
2709 | */ | |
2710 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2711 | const struct snd_soc_dapm_route *route, int num) | |
2712 | { | |
2713 | int i, err; | |
2714 | int ret = 0; | |
2715 | ||
a73fb2df | 2716 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2717 | for (i = 0; i < num; i++) { |
2718 | err = snd_soc_dapm_weak_route(dapm, route); | |
2719 | if (err) | |
2720 | ret = err; | |
2721 | route++; | |
2722 | } | |
a73fb2df | 2723 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2724 | |
2725 | return ret; | |
2726 | } | |
2727 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2728 | ||
2b97eabc RP |
2729 | /** |
2730 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2731 | * @dapm: DAPM context |
2b97eabc RP |
2732 | * |
2733 | * Checks the codec for any new dapm widgets and creates them if found. | |
2734 | * | |
2735 | * Returns 0 for success. | |
2736 | */ | |
824ef826 | 2737 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2738 | { |
2739 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2740 | unsigned int val; |
2b97eabc | 2741 | |
95dd5cd6 | 2742 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2743 | |
95dd5cd6 | 2744 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2745 | { |
2746 | if (w->new) | |
2747 | continue; | |
2748 | ||
fad59888 SW |
2749 | if (w->num_kcontrols) { |
2750 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2751 | sizeof(struct snd_kcontrol *), | |
2752 | GFP_KERNEL); | |
a73fb2df | 2753 | if (!w->kcontrols) { |
95dd5cd6 | 2754 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2755 | return -ENOMEM; |
a73fb2df | 2756 | } |
fad59888 SW |
2757 | } |
2758 | ||
2b97eabc RP |
2759 | switch(w->id) { |
2760 | case snd_soc_dapm_switch: | |
2761 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2762 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2763 | dapm_new_mixer(w); |
2b97eabc RP |
2764 | break; |
2765 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2766 | dapm_new_mux(w); |
2b97eabc | 2767 | break; |
2b97eabc | 2768 | case snd_soc_dapm_pga: |
d88429a6 | 2769 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2770 | dapm_new_pga(w); |
2b97eabc | 2771 | break; |
c6615082 NO |
2772 | case snd_soc_dapm_dai_link: |
2773 | dapm_new_dai_link(w); | |
2774 | break; | |
7ca3a18b | 2775 | default: |
2b97eabc RP |
2776 | break; |
2777 | } | |
b66a70d5 MB |
2778 | |
2779 | /* Read the initial power state from the device */ | |
2780 | if (w->reg >= 0) { | |
ce0fc93a | 2781 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2782 | val = val >> w->shift; |
de9ba98b LPC |
2783 | val &= w->mask; |
2784 | if (val == w->on_val) | |
b66a70d5 MB |
2785 | w->power = 1; |
2786 | } | |
2787 | ||
2b97eabc | 2788 | w->new = 1; |
d5d1e0be | 2789 | |
7508b12a | 2790 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2791 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2792 | } |
2793 | ||
95dd5cd6 LPC |
2794 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2795 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2796 | return 0; |
2797 | } | |
2798 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2799 | ||
2800 | /** | |
2801 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2802 | * @kcontrol: mixer control | |
ac11a2b3 | 2803 | * @ucontrol: control element information |
2b97eabc RP |
2804 | * |
2805 | * Callback to get the value of a dapm mixer control. | |
2806 | * | |
2807 | * Returns 0 for success. | |
2808 | */ | |
2809 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2810 | struct snd_ctl_elem_value *ucontrol) | |
2811 | { | |
ce0fc93a LPC |
2812 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2813 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2814 | struct soc_mixer_control *mc = |
2815 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2816 | int reg = mc->reg; |
815ecf8d | 2817 | unsigned int shift = mc->shift; |
4eaa9819 | 2818 | int max = mc->max; |
815ecf8d | 2819 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2820 | unsigned int invert = mc->invert; |
57295073 | 2821 | unsigned int val; |
ce0fc93a | 2822 | int ret = 0; |
da602ab8 BT |
2823 | |
2824 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2825 | dev_warn(dapm->dev, |
30a6a1a4 | 2826 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2827 | kcontrol->id.name); |
2b97eabc | 2828 | |
57295073 | 2829 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2830 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2831 | ret = soc_dapm_read(dapm, reg, &val); | |
2832 | val = (val >> shift) & mask; | |
2833 | } else { | |
57295073 | 2834 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2835 | } |
57295073 LPC |
2836 | mutex_unlock(&card->dapm_mutex); |
2837 | ||
da602ab8 | 2838 | if (invert) |
57295073 LPC |
2839 | ucontrol->value.integer.value[0] = max - val; |
2840 | else | |
2841 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2842 | |
ce0fc93a | 2843 | return ret; |
2b97eabc RP |
2844 | } |
2845 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2846 | ||
2847 | /** | |
2848 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2849 | * @kcontrol: mixer control | |
ac11a2b3 | 2850 | * @ucontrol: control element information |
2b97eabc RP |
2851 | * |
2852 | * Callback to set the value of a dapm mixer control. | |
2853 | * | |
2854 | * Returns 0 for success. | |
2855 | */ | |
2856 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2857 | struct snd_ctl_elem_value *ucontrol) | |
2858 | { | |
ce0fc93a LPC |
2859 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2860 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2861 | struct soc_mixer_control *mc = |
2862 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2863 | int reg = mc->reg; |
815ecf8d | 2864 | unsigned int shift = mc->shift; |
4eaa9819 | 2865 | int max = mc->max; |
815ecf8d JS |
2866 | unsigned int mask = (1 << fls(max)) - 1; |
2867 | unsigned int invert = mc->invert; | |
e9cf7049 | 2868 | unsigned int val; |
18626c7e | 2869 | int connect, change, reg_change = 0; |
97404f2e | 2870 | struct snd_soc_dapm_update update; |
52765976 | 2871 | int ret = 0; |
2b97eabc | 2872 | |
da602ab8 | 2873 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 2874 | dev_warn(dapm->dev, |
30a6a1a4 | 2875 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2876 | kcontrol->id.name); |
2877 | ||
2b97eabc | 2878 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2879 | connect = !!val; |
2b97eabc RP |
2880 | |
2881 | if (invert) | |
a7a4ac86 | 2882 | val = max - val; |
2b97eabc | 2883 | |
3cd04343 | 2884 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2885 | |
249ce138 | 2886 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2887 | |
18626c7e JN |
2888 | if (reg != SND_SOC_NOPM) { |
2889 | mask = mask << shift; | |
2890 | val = val << shift; | |
2891 | ||
ce0fc93a | 2892 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
2893 | } |
2894 | ||
2895 | if (change || reg_change) { | |
2896 | if (reg_change) { | |
2897 | update.kcontrol = kcontrol; | |
2898 | update.reg = reg; | |
2899 | update.mask = mask; | |
2900 | update.val = val; | |
2901 | card->update = &update; | |
249ce138 | 2902 | } |
18626c7e | 2903 | change |= reg_change; |
97404f2e | 2904 | |
52765976 | 2905 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2906 | |
564c6504 | 2907 | card->update = NULL; |
283375ce MB |
2908 | } |
2909 | ||
a73fb2df | 2910 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2911 | |
2912 | if (ret > 0) | |
2913 | soc_dpcm_runtime_update(card); | |
2914 | ||
56a67834 | 2915 | return change; |
2b97eabc RP |
2916 | } |
2917 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2918 | ||
2919 | /** | |
2920 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2921 | * @kcontrol: mixer control | |
ac11a2b3 | 2922 | * @ucontrol: control element information |
2b97eabc RP |
2923 | * |
2924 | * Callback to get the value of a dapm enumerated double mixer control. | |
2925 | * | |
2926 | * Returns 0 for success. | |
2927 | */ | |
2928 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2929 | struct snd_ctl_elem_value *ucontrol) | |
2930 | { | |
ce0fc93a | 2931 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2b97eabc | 2932 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2933 | unsigned int reg_val, val; |
52765976 | 2934 | |
69128316 GU |
2935 | if (e->reg != SND_SOC_NOPM) { |
2936 | int ret = soc_dapm_read(dapm, e->reg, ®_val); | |
2937 | if (ret) | |
2938 | return ret; | |
2939 | } else { | |
236aaa68 | 2940 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 2941 | } |
2e72f8e3 | 2942 | |
2e72f8e3 | 2943 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2944 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2945 | if (e->shift_l != e->shift_r) { |
2946 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2947 | val = snd_soc_enum_val_to_item(e, val); |
2948 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2949 | } |
2950 | ||
69128316 | 2951 | return 0; |
2e72f8e3 | 2952 | } |
2b97eabc | 2953 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2954 | |
2955 | /** | |
2b97eabc | 2956 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2957 | * @kcontrol: mixer control |
2958 | * @ucontrol: control element information | |
2959 | * | |
2b97eabc | 2960 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2961 | * |
2962 | * Returns 0 for success. | |
2963 | */ | |
2b97eabc | 2964 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2965 | struct snd_ctl_elem_value *ucontrol) |
2966 | { | |
ce0fc93a LPC |
2967 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2968 | struct snd_soc_card *card = dapm->card; | |
74155556 | 2969 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2970 | unsigned int *item = ucontrol->value.enumerated.item; |
2971 | unsigned int val, change; | |
46f5822f | 2972 | unsigned int mask; |
97404f2e | 2973 | struct snd_soc_dapm_update update; |
52765976 | 2974 | int ret = 0; |
2e72f8e3 | 2975 | |
3727b496 | 2976 | if (item[0] >= e->items) |
2e72f8e3 | 2977 | return -EINVAL; |
3727b496 LPC |
2978 | |
2979 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2980 | mask = e->mask << e->shift_l; |
2981 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2982 | if (item[1] > e->items) |
2e72f8e3 | 2983 | return -EINVAL; |
3727b496 | 2984 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2985 | mask |= e->mask << e->shift_r; |
2986 | } | |
2987 | ||
3cd04343 | 2988 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2989 | |
236aaa68 | 2990 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2991 | change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 LPC |
2992 | else |
2993 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2994 | ||
fafd2176 | 2995 | if (change) { |
236aaa68 LPC |
2996 | if (e->reg != SND_SOC_NOPM) { |
2997 | update.kcontrol = kcontrol; | |
2998 | update.reg = e->reg; | |
2999 | update.mask = mask; | |
3000 | update.val = val; | |
3001 | card->update = &update; | |
3002 | } | |
1642e3d4 | 3003 | |
3727b496 | 3004 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3005 | |
564c6504 | 3006 | card->update = NULL; |
fafd2176 | 3007 | } |
2e72f8e3 | 3008 | |
a73fb2df | 3009 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3010 | |
3011 | if (ret > 0) | |
3012 | soc_dpcm_runtime_update(card); | |
3013 | ||
97404f2e | 3014 | return change; |
2e72f8e3 | 3015 | } |
2b97eabc | 3016 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3017 | |
8b37dbd2 MB |
3018 | /** |
3019 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3020 | * | |
3021 | * @kcontrol: mixer control | |
3022 | * @uinfo: control element information | |
3023 | * | |
3024 | * Callback to provide information about a pin switch control. | |
3025 | */ | |
3026 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3027 | struct snd_ctl_elem_info *uinfo) | |
3028 | { | |
3029 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3030 | uinfo->count = 1; | |
3031 | uinfo->value.integer.min = 0; | |
3032 | uinfo->value.integer.max = 1; | |
3033 | ||
3034 | return 0; | |
3035 | } | |
3036 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3037 | ||
3038 | /** | |
3039 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3040 | * | |
3041 | * @kcontrol: mixer control | |
3042 | * @ucontrol: Value | |
3043 | */ | |
3044 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3045 | struct snd_ctl_elem_value *ucontrol) | |
3046 | { | |
48a8c394 | 3047 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3048 | const char *pin = (const char *)kcontrol->private_value; |
3049 | ||
3cd04343 | 3050 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3051 | |
3052 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3053 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3054 | |
a73fb2df | 3055 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3056 | |
3057 | return 0; | |
3058 | } | |
3059 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3060 | ||
3061 | /** | |
3062 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3063 | * | |
3064 | * @kcontrol: mixer control | |
3065 | * @ucontrol: Value | |
3066 | */ | |
3067 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3068 | struct snd_ctl_elem_value *ucontrol) | |
3069 | { | |
48a8c394 | 3070 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3071 | const char *pin = (const char *)kcontrol->private_value; |
3072 | ||
8b37dbd2 | 3073 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3074 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3075 | else |
48a8c394 | 3076 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3077 | |
a73fb2df | 3078 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3079 | return 0; |
3080 | } | |
3081 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3082 | ||
5ba06fc9 MB |
3083 | static struct snd_soc_dapm_widget * |
3084 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3085 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3086 | { |
3087 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3088 | const char *prefix; |
62ea874a | 3089 | int ret; |
2b97eabc RP |
3090 | |
3091 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3092 | return NULL; |
2b97eabc | 3093 | |
62ea874a MB |
3094 | switch (w->id) { |
3095 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3096 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3097 | if (IS_ERR(w->regulator)) { | |
3098 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3099 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3100 | w->name, ret); |
5ba06fc9 | 3101 | return NULL; |
62ea874a | 3102 | } |
8784c77a | 3103 | |
de9ba98b | 3104 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3105 | ret = regulator_allow_bypass(w->regulator, true); |
3106 | if (ret != 0) | |
3107 | dev_warn(w->dapm->dev, | |
30686c35 | 3108 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3109 | w->name, ret); |
3110 | } | |
62ea874a | 3111 | break; |
d7e7eb91 | 3112 | case snd_soc_dapm_clock_supply: |
165961ef | 3113 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3114 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3115 | if (IS_ERR(w->clk)) { |
3116 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3117 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3118 | w->name, ret); |
3119 | return NULL; | |
3120 | } | |
ec02995a MB |
3121 | #else |
3122 | return NULL; | |
3123 | #endif | |
d7e7eb91 | 3124 | break; |
62ea874a MB |
3125 | default: |
3126 | break; | |
3127 | } | |
2b97eabc | 3128 | |
94f99c87 LPC |
3129 | prefix = soc_dapm_prefix(dapm); |
3130 | if (prefix) | |
3131 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); | |
2b581074 LPC |
3132 | else |
3133 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3134 | ||
ead9b919 JN |
3135 | if (w->name == NULL) { |
3136 | kfree(w); | |
5ba06fc9 | 3137 | return NULL; |
ead9b919 | 3138 | } |
ead9b919 | 3139 | |
7ca3a18b | 3140 | switch (w->id) { |
6dd98b0a | 3141 | case snd_soc_dapm_mic: |
6dd98b0a | 3142 | w->is_source = 1; |
7ca3a18b MB |
3143 | w->power_check = dapm_generic_check_power; |
3144 | break; | |
86d75003 LPC |
3145 | case snd_soc_dapm_input: |
3146 | if (!dapm->card->fully_routed) | |
3147 | w->is_source = 1; | |
3148 | w->power_check = dapm_generic_check_power; | |
3149 | break; | |
6dd98b0a LPC |
3150 | case snd_soc_dapm_spk: |
3151 | case snd_soc_dapm_hp: | |
6dd98b0a | 3152 | w->is_sink = 1; |
7ca3a18b MB |
3153 | w->power_check = dapm_generic_check_power; |
3154 | break; | |
86d75003 LPC |
3155 | case snd_soc_dapm_output: |
3156 | if (!dapm->card->fully_routed) | |
3157 | w->is_sink = 1; | |
3158 | w->power_check = dapm_generic_check_power; | |
3159 | break; | |
6dd98b0a LPC |
3160 | case snd_soc_dapm_vmid: |
3161 | case snd_soc_dapm_siggen: | |
3162 | w->is_source = 1; | |
3163 | w->power_check = dapm_always_on_check_power; | |
3164 | break; | |
3165 | case snd_soc_dapm_mux: | |
3166 | case snd_soc_dapm_switch: | |
3167 | case snd_soc_dapm_mixer: | |
3168 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3169 | case snd_soc_dapm_adc: |
3170 | case snd_soc_dapm_aif_out: | |
3171 | case snd_soc_dapm_dac: | |
3172 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3173 | case snd_soc_dapm_pga: |
3174 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3175 | case snd_soc_dapm_micbias: |
7ca3a18b | 3176 | case snd_soc_dapm_line: |
c74184ed | 3177 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3178 | case snd_soc_dapm_dai_out: |
3179 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3180 | w->power_check = dapm_generic_check_power; |
3181 | break; | |
3182 | case snd_soc_dapm_supply: | |
62ea874a | 3183 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3184 | case snd_soc_dapm_clock_supply: |
57295073 | 3185 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3186 | w->is_supply = 1; |
7ca3a18b MB |
3187 | w->power_check = dapm_supply_check_power; |
3188 | break; | |
3189 | default: | |
3190 | w->power_check = dapm_always_on_check_power; | |
3191 | break; | |
3192 | } | |
3193 | ||
ce6120cc | 3194 | w->dapm = dapm; |
2b97eabc RP |
3195 | INIT_LIST_HEAD(&w->sources); |
3196 | INIT_LIST_HEAD(&w->sinks); | |
3197 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3198 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3199 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc | 3200 | |
92a99ea4 LPC |
3201 | w->inputs = -1; |
3202 | w->outputs = -1; | |
3203 | ||
2b97eabc RP |
3204 | /* machine layer set ups unconnected pins and insertions */ |
3205 | w->connected = 1; | |
5ba06fc9 | 3206 | return w; |
2b97eabc | 3207 | } |
2b97eabc | 3208 | |
4ba1327a MB |
3209 | /** |
3210 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3211 | * @dapm: DAPM context |
4ba1327a MB |
3212 | * @widget: widget array |
3213 | * @num: number of widgets | |
3214 | * | |
3215 | * Creates new DAPM controls based upon the templates. | |
3216 | * | |
3217 | * Returns 0 for success else error. | |
3218 | */ | |
ce6120cc | 3219 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3220 | const struct snd_soc_dapm_widget *widget, |
3221 | int num) | |
3222 | { | |
5ba06fc9 MB |
3223 | struct snd_soc_dapm_widget *w; |
3224 | int i; | |
60884c27 | 3225 | int ret = 0; |
4ba1327a | 3226 | |
a73fb2df | 3227 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3228 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3229 | w = snd_soc_dapm_new_control(dapm, widget); |
3230 | if (!w) { | |
f7d41ae8 | 3231 | dev_err(dapm->dev, |
5ba06fc9 MB |
3232 | "ASoC: Failed to create DAPM control %s\n", |
3233 | widget->name); | |
60884c27 DC |
3234 | ret = -ENOMEM; |
3235 | break; | |
b8b33cb5 | 3236 | } |
4ba1327a MB |
3237 | widget++; |
3238 | } | |
a73fb2df | 3239 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3240 | return ret; |
4ba1327a MB |
3241 | } |
3242 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3243 | ||
c74184ed MB |
3244 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3245 | struct snd_kcontrol *kcontrol, int event) | |
3246 | { | |
3247 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3248 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3249 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3250 | struct snd_pcm_substream substream; |
9747cec2 | 3251 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3252 | u64 fmt; |
3253 | int ret; | |
3254 | ||
bf4edea8 TI |
3255 | if (WARN_ON(!config) || |
3256 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3257 | return -EINVAL; | |
c74184ed MB |
3258 | |
3259 | /* We only support a single source and sink, pick the first */ | |
3260 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3261 | list_sink); | |
3262 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3263 | list_source); | |
3264 | ||
bf4edea8 TI |
3265 | if (WARN_ON(!source_p || !sink_p) || |
3266 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3267 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3268 | return -EINVAL; | |
c74184ed MB |
3269 | |
3270 | source = source_p->source->priv; | |
3271 | sink = sink_p->sink->priv; | |
3272 | ||
3273 | /* Be a little careful as we don't want to overflow the mask array */ | |
3274 | if (config->formats) { | |
3275 | fmt = ffs(config->formats) - 1; | |
3276 | } else { | |
30a6a1a4 | 3277 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3278 | config->formats); |
3279 | fmt = 0; | |
3280 | } | |
3281 | ||
3282 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3283 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3284 | if (!params) { | |
3285 | ret = -ENOMEM; | |
3286 | goto out; | |
3287 | } | |
3288 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3289 | |
9747cec2 | 3290 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3291 | config->rate_min; |
9747cec2 | 3292 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3293 | config->rate_max; |
3294 | ||
9747cec2 | 3295 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3296 | = config->channels_min; |
9747cec2 | 3297 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3298 | = config->channels_max; |
3299 | ||
3300 | memset(&substream, 0, sizeof(substream)); | |
3301 | ||
3302 | switch (event) { | |
3303 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3304 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3305 | ret = soc_dai_hw_params(&substream, params, source); | |
3306 | if (ret < 0) | |
3307 | goto out; | |
c74184ed | 3308 | |
93e6958a BC |
3309 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3310 | ret = soc_dai_hw_params(&substream, params, sink); | |
3311 | if (ret < 0) | |
3312 | goto out; | |
c74184ed MB |
3313 | break; |
3314 | ||
3315 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3316 | ret = snd_soc_dai_digital_mute(sink, 0, |
3317 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3318 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3319 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3320 | ret = 0; |
c74184ed MB |
3321 | break; |
3322 | ||
3323 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3324 | ret = snd_soc_dai_digital_mute(sink, 1, |
3325 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3326 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3327 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3328 | ret = 0; |
c74184ed MB |
3329 | break; |
3330 | ||
3331 | default: | |
a6ed0608 | 3332 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3333 | return -EINVAL; |
3334 | } | |
3335 | ||
9747cec2 MB |
3336 | out: |
3337 | kfree(params); | |
3338 | return ret; | |
c74184ed MB |
3339 | } |
3340 | ||
c6615082 NO |
3341 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3342 | struct snd_ctl_elem_value *ucontrol) | |
3343 | { | |
3344 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3345 | ||
3346 | ucontrol->value.integer.value[0] = w->params_select; | |
3347 | ||
3348 | return 0; | |
3349 | } | |
3350 | ||
3351 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3352 | struct snd_ctl_elem_value *ucontrol) | |
3353 | { | |
3354 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3355 | ||
3356 | /* Can't change the config when widget is already powered */ | |
3357 | if (w->power) | |
3358 | return -EBUSY; | |
3359 | ||
3360 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3361 | return 0; | |
3362 | ||
3363 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3364 | return -EINVAL; | |
3365 | ||
3366 | w->params_select = ucontrol->value.integer.value[0]; | |
3367 | ||
3368 | return 0; | |
3369 | } | |
3370 | ||
c74184ed MB |
3371 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3372 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3373 | unsigned int num_params, |
c74184ed MB |
3374 | struct snd_soc_dapm_widget *source, |
3375 | struct snd_soc_dapm_widget *sink) | |
3376 | { | |
c74184ed MB |
3377 | struct snd_soc_dapm_widget template; |
3378 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3379 | char *link_name; |
c6615082 NO |
3380 | int ret, count; |
3381 | unsigned long private_value; | |
3382 | const char **w_param_text; | |
3383 | struct soc_enum w_param_enum[] = { | |
3384 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3385 | }; | |
3386 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3387 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3388 | snd_soc_dapm_dai_link_get, | |
3389 | snd_soc_dapm_dai_link_put), | |
3390 | }; | |
3391 | const struct snd_soc_pcm_stream *config = params; | |
3392 | ||
3393 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3394 | sizeof(char *), GFP_KERNEL); | |
3395 | if (!w_param_text) | |
c74184ed | 3396 | return -ENOMEM; |
c74184ed | 3397 | |
46172b6c CK |
3398 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3399 | source->name, sink->name); | |
c6615082 NO |
3400 | if (!link_name) { |
3401 | ret = -ENOMEM; | |
3402 | goto outfree_w_param; | |
3403 | } | |
c74184ed | 3404 | |
c6615082 NO |
3405 | for (count = 0 ; count < num_params; count++) { |
3406 | if (!config->stream_name) { | |
3407 | dev_warn(card->dapm.dev, | |
3408 | "ASoC: anonymous config %d for dai link %s\n", | |
3409 | count, link_name); | |
c6615082 | 3410 | w_param_text[count] = |
46172b6c CK |
3411 | devm_kasprintf(card->dev, GFP_KERNEL, |
3412 | "Anonymous Configuration %d", | |
3413 | count); | |
c6615082 NO |
3414 | if (!w_param_text[count]) { |
3415 | ret = -ENOMEM; | |
3416 | goto outfree_link_name; | |
3417 | } | |
c6615082 NO |
3418 | } else { |
3419 | w_param_text[count] = devm_kmemdup(card->dev, | |
3420 | config->stream_name, | |
3421 | strlen(config->stream_name) + 1, | |
3422 | GFP_KERNEL); | |
3423 | if (!w_param_text[count]) { | |
3424 | ret = -ENOMEM; | |
3425 | goto outfree_link_name; | |
3426 | } | |
3427 | } | |
3428 | config++; | |
3429 | } | |
3430 | w_param_enum[0].items = num_params; | |
3431 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3432 | |
3433 | memset(&template, 0, sizeof(template)); | |
3434 | template.reg = SND_SOC_NOPM; | |
3435 | template.id = snd_soc_dapm_dai_link; | |
3436 | template.name = link_name; | |
3437 | template.event = snd_soc_dai_link_event; | |
3438 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3439 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3440 | template.num_kcontrols = 1; |
3441 | /* duplicate w_param_enum on heap so that memory persists */ | |
3442 | private_value = | |
3443 | (unsigned long) devm_kmemdup(card->dev, | |
3444 | (void *)(kcontrol_dai_link[0].private_value), | |
3445 | sizeof(struct soc_enum), GFP_KERNEL); | |
3446 | if (!private_value) { | |
3447 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3448 | link_name); | |
3449 | ret = -ENOMEM; | |
3450 | goto outfree_link_name; | |
3451 | } | |
3452 | kcontrol_dai_link[0].private_value = private_value; | |
3453 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3454 | template.kcontrol_news = | |
3455 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3456 | sizeof(struct snd_kcontrol_new), | |
3457 | GFP_KERNEL); | |
3458 | if (!template.kcontrol_news) { | |
3459 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3460 | link_name); | |
3461 | ret = -ENOMEM; | |
3462 | goto outfree_private_value; | |
3463 | } | |
c74184ed | 3464 | |
30a6a1a4 | 3465 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3466 | |
3467 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3468 | if (!w) { | |
30a6a1a4 | 3469 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3470 | link_name); |
c6615082 NO |
3471 | ret = -ENOMEM; |
3472 | goto outfree_kcontrol_news; | |
c74184ed MB |
3473 | } |
3474 | ||
3475 | w->params = params; | |
c6615082 | 3476 | w->num_params = num_params; |
c74184ed | 3477 | |
fe83897f LPC |
3478 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3479 | if (ret) | |
c6615082 | 3480 | goto outfree_w; |
fe83897f | 3481 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3482 | |
3483 | outfree_w: | |
3484 | devm_kfree(card->dev, w); | |
3485 | outfree_kcontrol_news: | |
3486 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3487 | outfree_private_value: | |
3488 | devm_kfree(card->dev, (void *)private_value); | |
3489 | outfree_link_name: | |
3490 | devm_kfree(card->dev, link_name); | |
3491 | outfree_w_param: | |
3492 | for (count = 0 ; count < num_params; count++) | |
3493 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3494 | devm_kfree(card->dev, w_param_text); | |
3495 | ||
3496 | return ret; | |
c74184ed MB |
3497 | } |
3498 | ||
888df395 MB |
3499 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3500 | struct snd_soc_dai *dai) | |
2b97eabc | 3501 | { |
888df395 | 3502 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3503 | struct snd_soc_dapm_widget *w; |
3504 | ||
888df395 MB |
3505 | WARN_ON(dapm->dev != dai->dev); |
3506 | ||
3507 | memset(&template, 0, sizeof(template)); | |
3508 | template.reg = SND_SOC_NOPM; | |
3509 | ||
3510 | if (dai->driver->playback.stream_name) { | |
4616274d | 3511 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3512 | template.name = dai->driver->playback.stream_name; |
3513 | template.sname = dai->driver->playback.stream_name; | |
3514 | ||
30a6a1a4 | 3515 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3516 | template.name); |
3517 | ||
3518 | w = snd_soc_dapm_new_control(dapm, &template); | |
3519 | if (!w) { | |
30a6a1a4 | 3520 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3521 | dai->driver->playback.stream_name); |
298402a3 | 3522 | return -ENOMEM; |
888df395 MB |
3523 | } |
3524 | ||
3525 | w->priv = dai; | |
3526 | dai->playback_widget = w; | |
3527 | } | |
3528 | ||
3529 | if (dai->driver->capture.stream_name) { | |
4616274d | 3530 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3531 | template.name = dai->driver->capture.stream_name; |
3532 | template.sname = dai->driver->capture.stream_name; | |
3533 | ||
30a6a1a4 | 3534 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3535 | template.name); |
3536 | ||
3537 | w = snd_soc_dapm_new_control(dapm, &template); | |
3538 | if (!w) { | |
30a6a1a4 | 3539 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3540 | dai->driver->capture.stream_name); |
298402a3 | 3541 | return -ENOMEM; |
888df395 MB |
3542 | } |
3543 | ||
3544 | w->priv = dai; | |
3545 | dai->capture_widget = w; | |
3546 | } | |
3547 | ||
3548 | return 0; | |
3549 | } | |
3550 | ||
3551 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3552 | { | |
3553 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3554 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3555 | struct snd_soc_dai *dai; |
888df395 MB |
3556 | |
3557 | /* For each DAI widget... */ | |
3558 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3559 | switch (dai_w->id) { |
3560 | case snd_soc_dapm_dai_in: | |
3561 | case snd_soc_dapm_dai_out: | |
3562 | break; | |
3563 | default: | |
2b97eabc | 3564 | continue; |
4616274d | 3565 | } |
888df395 MB |
3566 | |
3567 | dai = dai_w->priv; | |
3568 | ||
3569 | /* ...find all widgets with the same stream and link them */ | |
3570 | list_for_each_entry(w, &card->widgets, list) { | |
3571 | if (w->dapm != dai_w->dapm) | |
3572 | continue; | |
3573 | ||
4616274d MB |
3574 | switch (w->id) { |
3575 | case snd_soc_dapm_dai_in: | |
3576 | case snd_soc_dapm_dai_out: | |
888df395 | 3577 | continue; |
4616274d MB |
3578 | default: |
3579 | break; | |
3580 | } | |
888df395 | 3581 | |
19c2c5f5 | 3582 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3583 | continue; |
3584 | ||
0f9bd7b1 LPC |
3585 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3586 | src = dai_w; | |
3587 | sink = w; | |
3588 | } else { | |
3589 | src = w; | |
3590 | sink = dai_w; | |
2b97eabc | 3591 | } |
0f9bd7b1 LPC |
3592 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3593 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3594 | } |
3595 | } | |
2b97eabc | 3596 | |
888df395 MB |
3597 | return 0; |
3598 | } | |
64a648c2 | 3599 | |
44ba2641 BC |
3600 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3601 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3602 | { |
44ba2641 | 3603 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3604 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3605 | int i; |
3606 | ||
44ba2641 BC |
3607 | for (i = 0; i < rtd->num_codecs; i++) { |
3608 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3609 | |
3610 | /* there is no point in connecting BE DAI links with dummies */ | |
3611 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3612 | snd_soc_dai_is_dummy(cpu_dai)) | |
3613 | continue; | |
3614 | ||
3615 | /* connect BE DAI playback if widgets are valid */ | |
3616 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3617 | source = cpu_dai->playback_widget; |
3618 | sink = codec_dai->playback_widget; | |
b893ea5f | 3619 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3620 | cpu_dai->component->name, source->name, |
3621 | codec_dai->component->name, sink->name); | |
b893ea5f | 3622 | |
9887c20b LPC |
3623 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3624 | NULL, NULL); | |
b893ea5f LG |
3625 | } |
3626 | ||
3627 | /* connect BE DAI capture if widgets are valid */ | |
3628 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3629 | source = codec_dai->capture_widget; |
3630 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3631 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3632 | codec_dai->component->name, source->name, |
3633 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3634 | |
9887c20b LPC |
3635 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3636 | NULL, NULL); | |
b893ea5f | 3637 | } |
b893ea5f LG |
3638 | } |
3639 | } | |
3640 | ||
c471fdd1 | 3641 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3642 | int event) |
2b97eabc | 3643 | { |
c471fdd1 | 3644 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3645 | |
c471fdd1 LPC |
3646 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3647 | w = dai->playback_widget; | |
3648 | else | |
3649 | w = dai->capture_widget; | |
fe360685 | 3650 | |
c471fdd1 LPC |
3651 | if (w) { |
3652 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3653 | |
3654 | switch (event) { | |
3655 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3656 | w->active = 1; |
d9b0951b LG |
3657 | break; |
3658 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3659 | w->active = 0; |
d9b0951b LG |
3660 | break; |
3661 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3662 | case SND_SOC_DAPM_STREAM_RESUME: | |
3663 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3664 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3665 | break; | |
3666 | } | |
6dd98b0a | 3667 | |
92a99ea4 | 3668 | if (w->id == snd_soc_dapm_dai_in) { |
6dd98b0a | 3669 | w->is_source = w->active; |
92a99ea4 LPC |
3670 | dapm_widget_invalidate_input_paths(w); |
3671 | } else { | |
6dd98b0a | 3672 | w->is_sink = w->active; |
92a99ea4 LPC |
3673 | dapm_widget_invalidate_output_paths(w); |
3674 | } | |
d9b0951b | 3675 | } |
c471fdd1 | 3676 | } |
d9b0951b | 3677 | |
44ba2641 BC |
3678 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3679 | { | |
3680 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3681 | int i; | |
3682 | ||
3683 | /* for each BE DAI link... */ | |
3684 | for (i = 0; i < card->num_rtd; i++) { | |
3685 | rtd = &card->rtd[i]; | |
3686 | ||
3687 | /* | |
3688 | * dynamic FE links have no fixed DAI mapping. | |
3689 | * CODEC<->CODEC links have no direct connection. | |
3690 | */ | |
3691 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3692 | continue; | |
3693 | ||
3694 | dapm_connect_dai_link_widgets(card, rtd); | |
3695 | } | |
3696 | } | |
3697 | ||
c471fdd1 LPC |
3698 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3699 | int event) | |
3700 | { | |
44ba2641 BC |
3701 | int i; |
3702 | ||
c471fdd1 | 3703 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3704 | for (i = 0; i < rtd->num_codecs; i++) |
3705 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3706 | |
95dd5cd6 | 3707 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3708 | } |
3709 | ||
3710 | /** | |
3711 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3712 | * @rtd: PCM runtime data | |
3713 | * @stream: stream name | |
3714 | * @event: stream event | |
3715 | * | |
3716 | * Sends a stream event to the dapm core. The core then makes any | |
3717 | * necessary widget power changes. | |
3718 | * | |
3719 | * Returns 0 for success else error. | |
3720 | */ | |
d9b0951b LG |
3721 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3722 | int event) | |
ce6120cc | 3723 | { |
a73fb2df | 3724 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3725 | |
3cd04343 | 3726 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3727 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3728 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3729 | } |
2b97eabc | 3730 | |
11391100 CK |
3731 | /** |
3732 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3733 | * @dapm: DAPM context | |
3734 | * @pin: pin name | |
3735 | * | |
3736 | * Enables input/output pin and its parents or children widgets iff there is | |
3737 | * a valid audio route and active audio stream. | |
3738 | * | |
3739 | * Requires external locking. | |
3740 | * | |
3741 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3742 | * do any widget power switching. | |
3743 | */ | |
3744 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3745 | const char *pin) | |
3746 | { | |
3747 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3748 | } | |
3749 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3750 | ||
2b97eabc | 3751 | /** |
a5302181 | 3752 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3753 | * @dapm: DAPM context |
a5302181 | 3754 | * @pin: pin name |
2b97eabc | 3755 | * |
74b8f955 | 3756 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3757 | * a valid audio route and active audio stream. |
11391100 | 3758 | * |
a5302181 LG |
3759 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3760 | * do any widget power switching. | |
2b97eabc | 3761 | */ |
ce6120cc | 3762 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3763 | { |
11391100 CK |
3764 | int ret; |
3765 | ||
3766 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3767 | ||
3768 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3769 | ||
3770 | mutex_unlock(&dapm->card->dapm_mutex); | |
3771 | ||
3772 | return ret; | |
a5302181 LG |
3773 | } |
3774 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3775 | |
da34183e | 3776 | /** |
11391100 | 3777 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3778 | * @dapm: DAPM context |
da34183e MB |
3779 | * @pin: pin name |
3780 | * | |
3781 | * Enables input/output pin regardless of any other state. This is | |
3782 | * intended for use with microphone bias supplies used in microphone | |
3783 | * jack detection. | |
3784 | * | |
11391100 CK |
3785 | * Requires external locking. |
3786 | * | |
da34183e MB |
3787 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3788 | * do any widget power switching. | |
3789 | */ | |
11391100 CK |
3790 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3791 | const char *pin) | |
da34183e | 3792 | { |
91a5fca4 | 3793 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3794 | |
91a5fca4 | 3795 | if (!w) { |
30a6a1a4 | 3796 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3797 | return -EINVAL; |
0d86733c MB |
3798 | } |
3799 | ||
30a6a1a4 | 3800 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
3801 | if (!w->connected) { |
3802 | /* | |
3803 | * w->force does not affect the number of input or output paths, | |
3804 | * so we only have to recheck if w->connected is changed | |
3805 | */ | |
3806 | dapm_widget_invalidate_input_paths(w); | |
3807 | dapm_widget_invalidate_output_paths(w); | |
3808 | w->connected = 1; | |
3809 | } | |
91a5fca4 | 3810 | w->force = 1; |
75c1f891 | 3811 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3812 | |
91a5fca4 | 3813 | return 0; |
da34183e | 3814 | } |
11391100 CK |
3815 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3816 | ||
3817 | /** | |
3818 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3819 | * @dapm: DAPM context | |
3820 | * @pin: pin name | |
3821 | * | |
3822 | * Enables input/output pin regardless of any other state. This is | |
3823 | * intended for use with microphone bias supplies used in microphone | |
3824 | * jack detection. | |
3825 | * | |
3826 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3827 | * do any widget power switching. | |
3828 | */ | |
3829 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3830 | const char *pin) | |
3831 | { | |
3832 | int ret; | |
3833 | ||
3834 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3835 | ||
3836 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3837 | ||
3838 | mutex_unlock(&dapm->card->dapm_mutex); | |
3839 | ||
3840 | return ret; | |
3841 | } | |
da34183e MB |
3842 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3843 | ||
11391100 CK |
3844 | /** |
3845 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3846 | * @dapm: DAPM context | |
3847 | * @pin: pin name | |
3848 | * | |
3849 | * Disables input/output pin and its parents or children widgets. | |
3850 | * | |
3851 | * Requires external locking. | |
3852 | * | |
3853 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3854 | * do any widget power switching. | |
3855 | */ | |
3856 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3857 | const char *pin) | |
3858 | { | |
3859 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3860 | } | |
3861 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3862 | ||
a5302181 LG |
3863 | /** |
3864 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3865 | * @dapm: DAPM context |
a5302181 LG |
3866 | * @pin: pin name |
3867 | * | |
74b8f955 | 3868 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3869 | * |
a5302181 LG |
3870 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3871 | * do any widget power switching. | |
3872 | */ | |
ce6120cc LG |
3873 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3874 | const char *pin) | |
a5302181 | 3875 | { |
11391100 CK |
3876 | int ret; |
3877 | ||
3878 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3879 | ||
3880 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3881 | ||
3882 | mutex_unlock(&dapm->card->dapm_mutex); | |
3883 | ||
3884 | return ret; | |
2b97eabc | 3885 | } |
a5302181 | 3886 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3887 | |
11391100 CK |
3888 | /** |
3889 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3890 | * @dapm: DAPM context | |
3891 | * @pin: pin name | |
3892 | * | |
3893 | * Marks the specified pin as being not connected, disabling it along | |
3894 | * any parent or child widgets. At present this is identical to | |
3895 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3896 | * additional things such as disabling controls which only affect | |
3897 | * paths through the pin. | |
3898 | * | |
3899 | * Requires external locking. | |
3900 | * | |
3901 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3902 | * do any widget power switching. | |
3903 | */ | |
3904 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3905 | const char *pin) | |
3906 | { | |
3907 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3908 | } | |
3909 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3910 | ||
5817b52a MB |
3911 | /** |
3912 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3913 | * @dapm: DAPM context |
5817b52a MB |
3914 | * @pin: pin name |
3915 | * | |
3916 | * Marks the specified pin as being not connected, disabling it along | |
3917 | * any parent or child widgets. At present this is identical to | |
3918 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3919 | * additional things such as disabling controls which only affect | |
3920 | * paths through the pin. | |
3921 | * | |
3922 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3923 | * do any widget power switching. | |
3924 | */ | |
ce6120cc | 3925 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3926 | { |
11391100 CK |
3927 | int ret; |
3928 | ||
3929 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3930 | ||
3931 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3932 | ||
3933 | mutex_unlock(&dapm->card->dapm_mutex); | |
3934 | ||
3935 | return ret; | |
5817b52a MB |
3936 | } |
3937 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3938 | ||
eeec12bf | 3939 | /** |
a5302181 | 3940 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3941 | * @dapm: DAPM context |
a5302181 | 3942 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3943 | * |
a5302181 | 3944 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3945 | * |
a5302181 | 3946 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3947 | */ |
ce6120cc LG |
3948 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3949 | const char *pin) | |
eeec12bf | 3950 | { |
91a5fca4 | 3951 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3952 | |
91a5fca4 LPC |
3953 | if (w) |
3954 | return w->connected; | |
a68b38ad | 3955 | |
eeec12bf GG |
3956 | return 0; |
3957 | } | |
a5302181 | 3958 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3959 | |
1547aba9 MB |
3960 | /** |
3961 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3962 | * @dapm: DAPM context |
1547aba9 MB |
3963 | * @pin: audio signal pin endpoint (or start point) |
3964 | * | |
3965 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3966 | * system is disabled a path between two endpoints flagged as ignoring | |
3967 | * suspend will not be disabled. The path must already be enabled via | |
3968 | * normal means at suspend time, it will not be turned on if it was not | |
3969 | * already enabled. | |
3970 | */ | |
ce6120cc LG |
3971 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3972 | const char *pin) | |
1547aba9 | 3973 | { |
91a5fca4 | 3974 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3975 | |
91a5fca4 | 3976 | if (!w) { |
30a6a1a4 | 3977 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3978 | return -EINVAL; |
1547aba9 MB |
3979 | } |
3980 | ||
91a5fca4 LPC |
3981 | w->ignore_suspend = 1; |
3982 | ||
3983 | return 0; | |
1547aba9 MB |
3984 | } |
3985 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3986 | ||
2b97eabc RP |
3987 | /** |
3988 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3989 | * @dapm: DAPM context |
2b97eabc RP |
3990 | * |
3991 | * Free all dapm widgets and resources. | |
3992 | */ | |
ce6120cc | 3993 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3994 | { |
6c45e126 | 3995 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3996 | dapm_free_widgets(dapm); |
7be31be8 | 3997 | list_del(&dapm->list); |
2b97eabc RP |
3998 | } |
3999 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4000 | ||
57996358 | 4001 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4002 | { |
01005a72 | 4003 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4004 | struct snd_soc_dapm_widget *w; |
4005 | LIST_HEAD(down_list); | |
4006 | int powerdown = 0; | |
4007 | ||
01005a72 LG |
4008 | mutex_lock(&card->dapm_mutex); |
4009 | ||
97c866de JN |
4010 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4011 | if (w->dapm != dapm) | |
4012 | continue; | |
51737470 | 4013 | if (w->power) { |
828a842f | 4014 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4015 | w->power = 0; |
51737470 MB |
4016 | powerdown = 1; |
4017 | } | |
4018 | } | |
4019 | ||
4020 | /* If there were no widgets to power down we're already in | |
4021 | * standby. | |
4022 | */ | |
4023 | if (powerdown) { | |
7679e42e MB |
4024 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4025 | snd_soc_dapm_set_bias_level(dapm, | |
4026 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4027 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4028 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4029 | snd_soc_dapm_set_bias_level(dapm, | |
4030 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4031 | } |
01005a72 LG |
4032 | |
4033 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4034 | } |
4035 | ||
4036 | /* | |
4037 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4038 | */ | |
4039 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4040 | { | |
57996358 | 4041 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4042 | |
57996358 | 4043 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4044 | if (dapm != &card->dapm) { |
4045 | soc_dapm_shutdown_dapm(dapm); | |
4046 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4047 | snd_soc_dapm_set_bias_level(dapm, | |
4048 | SND_SOC_BIAS_OFF); | |
4049 | } | |
ce6120cc | 4050 | } |
17282ba4 XX |
4051 | |
4052 | soc_dapm_shutdown_dapm(&card->dapm); | |
4053 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4054 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4055 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4056 | } |
4057 | ||
2b97eabc | 4058 | /* Module information */ |
d331124d | 4059 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4060 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4061 | MODULE_LICENSE("GPL"); |