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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
57295073 LPC |
50 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
51 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
52 | const char *control, | |
53 | int (*connected)(struct snd_soc_dapm_widget *source, | |
54 | struct snd_soc_dapm_widget *sink)); | |
55 | static struct snd_soc_dapm_widget * | |
56 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
57 | const struct snd_soc_dapm_widget *widget); | |
58 | ||
2b97eabc RP |
59 | /* dapm power sequences - make this per codec in the future */ |
60 | static int dapm_up_seq[] = { | |
38357ab2 | 61 | [snd_soc_dapm_pre] = 0, |
62ea874a | 62 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 63 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
64 | [snd_soc_dapm_supply] = 2, |
65 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 66 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
67 | [snd_soc_dapm_dai_in] = 4, |
68 | [snd_soc_dapm_dai_out] = 4, | |
69 | [snd_soc_dapm_aif_in] = 4, | |
70 | [snd_soc_dapm_aif_out] = 4, | |
71 | [snd_soc_dapm_mic] = 5, | |
72 | [snd_soc_dapm_mux] = 6, | |
1dd275b6 MB |
73 | [snd_soc_dapm_dac] = 7, |
74 | [snd_soc_dapm_switch] = 8, | |
75 | [snd_soc_dapm_mixer] = 8, | |
76 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
77 | [snd_soc_dapm_pga] = 9, | |
78 | [snd_soc_dapm_adc] = 10, | |
79 | [snd_soc_dapm_out_drv] = 11, | |
80 | [snd_soc_dapm_hp] = 11, | |
81 | [snd_soc_dapm_spk] = 11, | |
82 | [snd_soc_dapm_line] = 11, | |
83 | [snd_soc_dapm_kcontrol] = 12, | |
84 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 85 | }; |
ca9c1aae | 86 | |
2b97eabc | 87 | static int dapm_down_seq[] = { |
38357ab2 | 88 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
89 | [snd_soc_dapm_kcontrol] = 1, |
90 | [snd_soc_dapm_adc] = 2, | |
91 | [snd_soc_dapm_hp] = 3, | |
92 | [snd_soc_dapm_spk] = 3, | |
93 | [snd_soc_dapm_line] = 3, | |
94 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 95 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 96 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 97 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
98 | [snd_soc_dapm_mixer] = 5, |
99 | [snd_soc_dapm_dac] = 6, | |
100 | [snd_soc_dapm_mic] = 7, | |
101 | [snd_soc_dapm_micbias] = 8, | |
102 | [snd_soc_dapm_mux] = 9, | |
010ff262 MB |
103 | [snd_soc_dapm_aif_in] = 10, |
104 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
105 | [snd_soc_dapm_dai_in] = 10, |
106 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 107 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 108 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
109 | [snd_soc_dapm_clock_supply] = 13, |
110 | [snd_soc_dapm_regulator_supply] = 13, | |
111 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
112 | }; |
113 | ||
f9fa2b18 MB |
114 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
115 | { | |
116 | if (dapm->card && dapm->card->instantiated) | |
117 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
118 | } | |
119 | ||
12ef193d | 120 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
121 | { |
122 | if (pop_time) | |
123 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
124 | } | |
125 | ||
fd8d3bc0 | 126 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
127 | { |
128 | va_list args; | |
fd8d3bc0 | 129 | char *buf; |
15e4c72f | 130 | |
fd8d3bc0 JN |
131 | if (!pop_time) |
132 | return; | |
15e4c72f | 133 | |
fd8d3bc0 JN |
134 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
135 | if (buf == NULL) | |
136 | return; | |
15e4c72f | 137 | |
fd8d3bc0 JN |
138 | va_start(args, fmt); |
139 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 140 | dev_info(dev, "%s", buf); |
15e4c72f | 141 | va_end(args); |
fd8d3bc0 JN |
142 | |
143 | kfree(buf); | |
15e4c72f MB |
144 | } |
145 | ||
db432b41 MB |
146 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
147 | { | |
148 | return !list_empty(&w->dirty); | |
149 | } | |
150 | ||
492c0a18 | 151 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 152 | { |
f9fa2b18 MB |
153 | dapm_assert_locked(w->dapm); |
154 | ||
75c1f891 MB |
155 | if (!dapm_dirty_widget(w)) { |
156 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
157 | w->name, reason); | |
db432b41 | 158 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 159 | } |
db432b41 MB |
160 | } |
161 | ||
92a99ea4 LPC |
162 | /* |
163 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of input | |
164 | * paths | |
165 | * @w: The widget for which to invalidate the cached number of input paths | |
166 | * | |
167 | * The function resets the cached number of inputs for the specified widget and | |
168 | * all widgets that can be reached via outgoing paths from the widget. | |
169 | * | |
170 | * This function must be called if the number of input paths for a widget might | |
171 | * have changed. E.g. if the source state of a widget changes or a path is added | |
172 | * or activated with the widget as the sink. | |
173 | */ | |
174 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
175 | { | |
176 | struct snd_soc_dapm_widget *sink; | |
177 | struct snd_soc_dapm_path *p; | |
178 | LIST_HEAD(list); | |
179 | ||
180 | dapm_assert_locked(w->dapm); | |
181 | ||
182 | if (w->inputs == -1) | |
183 | return; | |
184 | ||
185 | w->inputs = -1; | |
186 | list_add_tail(&w->work_list, &list); | |
187 | ||
188 | list_for_each_entry(w, &list, work_list) { | |
189 | list_for_each_entry(p, &w->sinks, list_source) { | |
190 | if (p->is_supply || p->weak || !p->connect) | |
191 | continue; | |
192 | sink = p->sink; | |
193 | if (sink->inputs != -1) { | |
194 | sink->inputs = -1; | |
195 | list_add_tail(&sink->work_list, &list); | |
196 | } | |
197 | } | |
198 | } | |
199 | } | |
200 | ||
201 | /* | |
202 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
203 | * output paths | |
204 | * @w: The widget for which to invalidate the cached number of output paths | |
205 | * | |
206 | * Resets the cached number of outputs for the specified widget and all widgets | |
207 | * that can be reached via incoming paths from the widget. | |
208 | * | |
209 | * This function must be called if the number of output paths for a widget might | |
210 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
211 | * or activated with the widget as the source. | |
212 | */ | |
213 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
214 | { | |
215 | struct snd_soc_dapm_widget *source; | |
216 | struct snd_soc_dapm_path *p; | |
217 | LIST_HEAD(list); | |
218 | ||
219 | dapm_assert_locked(w->dapm); | |
220 | ||
221 | if (w->outputs == -1) | |
222 | return; | |
223 | ||
224 | w->outputs = -1; | |
225 | list_add_tail(&w->work_list, &list); | |
226 | ||
227 | list_for_each_entry(w, &list, work_list) { | |
228 | list_for_each_entry(p, &w->sources, list_sink) { | |
229 | if (p->is_supply || p->weak || !p->connect) | |
230 | continue; | |
231 | source = p->source; | |
232 | if (source->outputs != -1) { | |
233 | source->outputs = -1; | |
234 | list_add_tail(&source->work_list, &list); | |
235 | } | |
236 | } | |
237 | } | |
238 | } | |
239 | ||
240 | /* | |
241 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
242 | * for the widgets connected to a path | |
243 | * @p: The path to invalidate | |
244 | * | |
245 | * Resets the cached number of inputs for the sink of the path and the cached | |
246 | * number of outputs for the source of the path. | |
247 | * | |
248 | * This function must be called when a path is added, removed or the connected | |
249 | * state changes. | |
250 | */ | |
251 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
252 | { | |
253 | /* | |
254 | * Weak paths or supply paths do not influence the number of input or | |
255 | * output paths of their neighbors. | |
256 | */ | |
257 | if (p->weak || p->is_supply) | |
258 | return; | |
259 | ||
260 | /* | |
261 | * The number of connected endpoints is the sum of the number of | |
262 | * connected endpoints of all neighbors. If a node with 0 connected | |
263 | * endpoints is either connected or disconnected that sum won't change, | |
264 | * so there is no need to re-check the path. | |
265 | */ | |
266 | if (p->source->inputs != 0) | |
267 | dapm_widget_invalidate_input_paths(p->sink); | |
268 | if (p->sink->outputs != 0) | |
269 | dapm_widget_invalidate_output_paths(p->source); | |
270 | } | |
271 | ||
8be4da29 | 272 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 273 | { |
e2d32ff6 MB |
274 | struct snd_soc_dapm_widget *w; |
275 | ||
276 | mutex_lock(&card->dapm_mutex); | |
277 | ||
278 | list_for_each_entry(w, &card->widgets, list) { | |
92a99ea4 | 279 | if (w->is_sink || w->is_source) { |
8be4da29 | 280 | dapm_mark_dirty(w, "Rechecking endpoints"); |
92a99ea4 LPC |
281 | if (w->is_sink) |
282 | dapm_widget_invalidate_output_paths(w); | |
283 | if (w->is_source) | |
284 | dapm_widget_invalidate_input_paths(w); | |
285 | } | |
e2d32ff6 MB |
286 | } |
287 | ||
288 | mutex_unlock(&card->dapm_mutex); | |
289 | } | |
8be4da29 | 290 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 291 | |
2b97eabc | 292 | /* create a new dapm widget */ |
88cb4290 | 293 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
294 | const struct snd_soc_dapm_widget *_widget) |
295 | { | |
88cb4290 | 296 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
297 | } |
298 | ||
e84357f7 | 299 | struct dapm_kcontrol_data { |
cf7c1de2 | 300 | unsigned int value; |
57295073 | 301 | struct snd_soc_dapm_widget *widget; |
5106b92f | 302 | struct list_head paths; |
2c75bdf3 | 303 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
304 | }; |
305 | ||
306 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
307 | struct snd_kcontrol *kcontrol) | |
308 | { | |
309 | struct dapm_kcontrol_data *data; | |
57295073 | 310 | struct soc_mixer_control *mc; |
e84357f7 | 311 | |
2c75bdf3 | 312 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
313 | if (!data) { |
314 | dev_err(widget->dapm->dev, | |
315 | "ASoC: can't allocate kcontrol data for %s\n", | |
316 | widget->name); | |
317 | return -ENOMEM; | |
318 | } | |
319 | ||
5106b92f | 320 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 321 | |
57295073 LPC |
322 | switch (widget->id) { |
323 | case snd_soc_dapm_switch: | |
324 | case snd_soc_dapm_mixer: | |
325 | case snd_soc_dapm_mixer_named_ctl: | |
326 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
327 | ||
328 | if (mc->autodisable) { | |
329 | struct snd_soc_dapm_widget template; | |
330 | ||
331 | memset(&template, 0, sizeof(template)); | |
332 | template.reg = mc->reg; | |
333 | template.mask = (1 << fls(mc->max)) - 1; | |
334 | template.shift = mc->shift; | |
335 | if (mc->invert) | |
336 | template.off_val = mc->max; | |
337 | else | |
338 | template.off_val = 0; | |
339 | template.on_val = template.off_val; | |
340 | template.id = snd_soc_dapm_kcontrol; | |
341 | template.name = kcontrol->id.name; | |
342 | ||
2daabd78 LPC |
343 | data->value = template.on_val; |
344 | ||
57295073 LPC |
345 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
346 | &template); | |
347 | if (!data->widget) { | |
348 | kfree(data); | |
349 | return -ENOMEM; | |
350 | } | |
351 | } | |
352 | break; | |
353 | default: | |
354 | break; | |
355 | } | |
356 | ||
e84357f7 LPC |
357 | kcontrol->private_data = data; |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
363 | { | |
364 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 365 | kfree(data->wlist); |
e84357f7 LPC |
366 | kfree(data); |
367 | } | |
368 | ||
369 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
370 | const struct snd_kcontrol *kcontrol) | |
371 | { | |
372 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
373 | ||
2c75bdf3 | 374 | return data->wlist; |
e84357f7 LPC |
375 | } |
376 | ||
377 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
378 | struct snd_soc_dapm_widget *widget) | |
379 | { | |
380 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
381 | struct snd_soc_dapm_widget_list *new_wlist; |
382 | unsigned int n; | |
e84357f7 | 383 | |
2c75bdf3 LPC |
384 | if (data->wlist) |
385 | n = data->wlist->num_widgets + 1; | |
386 | else | |
387 | n = 1; | |
388 | ||
389 | new_wlist = krealloc(data->wlist, | |
390 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
391 | if (!new_wlist) | |
e84357f7 LPC |
392 | return -ENOMEM; |
393 | ||
2c75bdf3 LPC |
394 | new_wlist->widgets[n - 1] = widget; |
395 | new_wlist->num_widgets = n; | |
e84357f7 | 396 | |
2c75bdf3 | 397 | data->wlist = new_wlist; |
e84357f7 LPC |
398 | |
399 | return 0; | |
400 | } | |
401 | ||
5106b92f LPC |
402 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
403 | struct snd_soc_dapm_path *path) | |
404 | { | |
405 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
406 | ||
407 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
408 | |
409 | if (data->widget) { | |
410 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
411 | path->source, NULL, NULL); | |
412 | } | |
413 | } | |
414 | ||
415 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
416 | { | |
417 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
418 | ||
419 | if (!data->widget) | |
420 | return true; | |
421 | ||
422 | return data->widget->power; | |
5106b92f LPC |
423 | } |
424 | ||
425 | static struct list_head *dapm_kcontrol_get_path_list( | |
426 | const struct snd_kcontrol *kcontrol) | |
427 | { | |
428 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
429 | ||
430 | return &data->paths; | |
431 | } | |
432 | ||
433 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
434 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
435 | list_kcontrol) | |
436 | ||
5dc0158a | 437 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
438 | { |
439 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
440 | ||
441 | return data->value; | |
442 | } | |
5dc0158a | 443 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
444 | |
445 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
446 | unsigned int value) | |
447 | { | |
448 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
449 | ||
450 | if (data->value == value) | |
451 | return false; | |
452 | ||
57295073 LPC |
453 | if (data->widget) |
454 | data->widget->on_val = value; | |
455 | ||
cf7c1de2 LPC |
456 | data->value = value; |
457 | ||
458 | return true; | |
459 | } | |
460 | ||
ce0fc93a LPC |
461 | /** |
462 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
463 | * kcontrol | |
464 | * @kcontrol: The kcontrol | |
465 | * | |
466 | * Note: This function must only be used on kcontrols that are known to have | |
467 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
468 | */ | |
469 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
470 | struct snd_kcontrol *kcontrol) | |
471 | { | |
472 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
473 | } | |
474 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
475 | ||
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 | ||
452c5eaa MB |
528 | /** |
529 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 530 | * @dapm: DAPM context |
452c5eaa MB |
531 | * @level: level to configure |
532 | * | |
533 | * Configure the bias (power) levels for the SoC audio device. | |
534 | * | |
535 | * Returns 0 for success else error. | |
536 | */ | |
ed5a4c47 | 537 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 538 | enum snd_soc_bias_level level) |
452c5eaa | 539 | { |
ed5a4c47 | 540 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
541 | int ret = 0; |
542 | ||
84e90930 MB |
543 | trace_snd_soc_bias_level_start(card, level); |
544 | ||
f0fba2ad | 545 | if (card && card->set_bias_level) |
d4c6005f | 546 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
547 | if (ret != 0) |
548 | goto out; | |
549 | ||
68f831c2 LPC |
550 | if (dapm->set_bias_level) |
551 | ret = dapm->set_bias_level(dapm, level); | |
552 | else if (!card || dapm != &card->dapm) | |
4123128e LG |
553 | dapm->bias_level = level; |
554 | ||
171ec6b0 MB |
555 | if (ret != 0) |
556 | goto out; | |
557 | ||
558 | if (card && card->set_bias_level_post) | |
d4c6005f | 559 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 560 | out: |
84e90930 MB |
561 | trace_snd_soc_bias_level_done(card, level); |
562 | ||
452c5eaa MB |
563 | return ret; |
564 | } | |
565 | ||
74b8f955 | 566 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 567 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
5fe5b767 | 568 | struct snd_soc_dapm_path *path, const char *control_name) |
2b97eabc | 569 | { |
5fe5b767 | 570 | const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0]; |
2b97eabc | 571 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 572 | unsigned int val, item; |
2b97eabc | 573 | int i; |
24ff33ac | 574 | |
234c0b8f | 575 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 576 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
577 | val = (val >> e->shift_l) & e->mask; |
578 | item = snd_soc_enum_val_to_item(e, val); | |
579 | } else { | |
24ff33ac DP |
580 | /* since a virtual mux has no backing registers to |
581 | * decide which path to connect, it will try to match | |
582 | * with the first enumeration. This is to ensure | |
583 | * that the default mux choice (the first) will be | |
584 | * correctly powered up during initialization. | |
585 | */ | |
234c0b8f | 586 | item = 0; |
24ff33ac | 587 | } |
2e72f8e3 | 588 | |
9a8d38db | 589 | for (i = 0; i < e->items; i++) { |
2b97eabc | 590 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 591 | path->name = e->texts[i]; |
234c0b8f LPC |
592 | if (i == item) |
593 | path->connect = 1; | |
594 | else | |
595 | path->connect = 0; | |
2b97eabc RP |
596 | return 0; |
597 | } | |
598 | } | |
599 | ||
600 | return -ENODEV; | |
601 | } | |
602 | ||
234c0b8f | 603 | /* set up initial codec paths */ |
5fe5b767 | 604 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
605 | { |
606 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 607 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
608 | unsigned int reg = mc->reg; |
609 | unsigned int shift = mc->shift; | |
610 | unsigned int max = mc->max; | |
611 | unsigned int mask = (1 << fls(max)) - 1; | |
612 | unsigned int invert = mc->invert; | |
613 | unsigned int val; | |
614 | ||
615 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 616 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
617 | val = (val >> shift) & mask; |
618 | if (invert) | |
619 | val = max - val; | |
620 | p->connect = !!val; | |
621 | } else { | |
622 | p->connect = 0; | |
623 | } | |
624 | } | |
625 | ||
74b8f955 | 626 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 627 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
628 | struct snd_soc_dapm_path *path, const char *control_name) |
629 | { | |
630 | int i; | |
631 | ||
632 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
633 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
634 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
635 | path->name = path->sink->kcontrol_news[i].name; | |
636 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
637 | return 0; |
638 | } | |
639 | } | |
640 | return -ENODEV; | |
641 | } | |
642 | ||
af46800b | 643 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 644 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
645 | const struct snd_kcontrol_new *kcontrol_new, |
646 | struct snd_kcontrol **kcontrol) | |
647 | { | |
648 | struct snd_soc_dapm_widget *w; | |
649 | int i; | |
650 | ||
651 | *kcontrol = NULL; | |
652 | ||
653 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
654 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
655 | continue; | |
af46800b SW |
656 | for (i = 0; i < w->num_kcontrols; i++) { |
657 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
658 | if (w->kcontrols) | |
659 | *kcontrol = w->kcontrols[i]; | |
660 | return 1; | |
661 | } | |
662 | } | |
663 | } | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
85762e71 SW |
668 | /* |
669 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
670 | * create it. Either way, add the widget into the control's widget list | |
671 | */ | |
672 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 673 | int kci) |
2b97eabc | 674 | { |
4b80b8c2 | 675 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 676 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 677 | const char *prefix; |
85762e71 SW |
678 | size_t prefix_len; |
679 | int shared; | |
680 | struct snd_kcontrol *kcontrol; | |
85762e71 | 681 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 682 | char *long_name = NULL; |
85762e71 | 683 | const char *name; |
e5092c96 | 684 | int ret = 0; |
efb7ac3f | 685 | |
94f99c87 | 686 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
687 | if (prefix) |
688 | prefix_len = strlen(prefix) + 1; | |
689 | else | |
690 | prefix_len = 0; | |
691 | ||
85762e71 SW |
692 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
693 | &kcontrol); | |
2b97eabc | 694 | |
85762e71 SW |
695 | if (!kcontrol) { |
696 | if (shared) { | |
697 | wname_in_long_name = false; | |
698 | kcname_in_long_name = true; | |
699 | } else { | |
700 | switch (w->id) { | |
701 | case snd_soc_dapm_switch: | |
702 | case snd_soc_dapm_mixer: | |
703 | wname_in_long_name = true; | |
704 | kcname_in_long_name = true; | |
705 | break; | |
706 | case snd_soc_dapm_mixer_named_ctl: | |
707 | wname_in_long_name = false; | |
708 | kcname_in_long_name = true; | |
709 | break; | |
710 | case snd_soc_dapm_mux: | |
85762e71 SW |
711 | wname_in_long_name = true; |
712 | kcname_in_long_name = false; | |
713 | break; | |
714 | default: | |
85762e71 | 715 | return -EINVAL; |
82cd8764 | 716 | } |
85762e71 SW |
717 | } |
718 | ||
719 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
720 | /* |
721 | * The control will get a prefix from the control | |
722 | * creation process but we're also using the same | |
723 | * prefix for widgets so cut the prefix off the | |
724 | * front of the widget name. | |
ca9c1aae | 725 | */ |
2b581074 | 726 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
727 | w->name + prefix_len, |
728 | w->kcontrol_news[kci].name); | |
e84357f7 | 729 | if (long_name == NULL) |
2b581074 | 730 | return -ENOMEM; |
85762e71 SW |
731 | |
732 | name = long_name; | |
733 | } else if (wname_in_long_name) { | |
734 | long_name = NULL; | |
735 | name = w->name + prefix_len; | |
736 | } else { | |
737 | long_name = NULL; | |
738 | name = w->kcontrol_news[kci].name; | |
739 | } | |
ca9c1aae | 740 | |
e84357f7 | 741 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 742 | prefix); |
e5092c96 DM |
743 | if (!kcontrol) { |
744 | ret = -ENOMEM; | |
745 | goto exit_free; | |
746 | } | |
747 | ||
9356e9d5 | 748 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
749 | |
750 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
751 | if (ret) { | |
752 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 753 | goto exit_free; |
e84357f7 LPC |
754 | } |
755 | ||
85762e71 SW |
756 | ret = snd_ctl_add(card, kcontrol); |
757 | if (ret < 0) { | |
758 | dev_err(dapm->dev, | |
759 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
760 | w->name, name, ret); | |
e5092c96 | 761 | goto exit_free; |
85762e71 | 762 | } |
85762e71 | 763 | } |
2b97eabc | 764 | |
2c75bdf3 | 765 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
766 | if (ret == 0) |
767 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 768 | |
e5092c96 DM |
769 | exit_free: |
770 | kfree(long_name); | |
ca9c1aae | 771 | |
e5092c96 | 772 | return ret; |
85762e71 | 773 | } |
219b93f5 | 774 | |
85762e71 SW |
775 | /* create new dapm mixer control */ |
776 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
777 | { | |
778 | int i, ret; | |
779 | struct snd_soc_dapm_path *path; | |
780 | ||
781 | /* add kcontrol */ | |
782 | for (i = 0; i < w->num_kcontrols; i++) { | |
783 | /* match name */ | |
784 | list_for_each_entry(path, &w->sources, list_sink) { | |
785 | /* mixer/mux paths name must match control name */ | |
786 | if (path->name != (char *)w->kcontrol_news[i].name) | |
787 | continue; | |
788 | ||
789 | if (w->kcontrols[i]) { | |
5106b92f | 790 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 791 | continue; |
2b97eabc | 792 | } |
85762e71 | 793 | |
946d92a1 | 794 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
795 | if (ret < 0) |
796 | return ret; | |
946d92a1 MB |
797 | |
798 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
799 | } |
800 | } | |
85762e71 SW |
801 | |
802 | return 0; | |
2b97eabc RP |
803 | } |
804 | ||
805 | /* create new dapm mux control */ | |
4b80b8c2 | 806 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 807 | { |
4b80b8c2 | 808 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 809 | struct snd_soc_dapm_path *path; |
af46800b | 810 | int ret; |
2b97eabc | 811 | |
af46800b SW |
812 | if (w->num_kcontrols != 1) { |
813 | dev_err(dapm->dev, | |
30a6a1a4 | 814 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 815 | w->name); |
2b97eabc RP |
816 | return -EINVAL; |
817 | } | |
818 | ||
fe581391 | 819 | if (list_empty(&w->sources)) { |
85762e71 SW |
820 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
821 | return -EINVAL; | |
af46800b | 822 | } |
ce6120cc | 823 | |
946d92a1 | 824 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
825 | if (ret < 0) |
826 | return ret; | |
fad59888 | 827 | |
98407efc LPC |
828 | list_for_each_entry(path, &w->sources, list_sink) { |
829 | if (path->name) | |
830 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
831 | } | |
2b97eabc | 832 | |
af46800b | 833 | return 0; |
2b97eabc RP |
834 | } |
835 | ||
836 | /* create new dapm volume control */ | |
4b80b8c2 | 837 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 838 | { |
a6c65736 | 839 | if (w->num_kcontrols) |
f7d41ae8 | 840 | dev_err(w->dapm->dev, |
30a6a1a4 | 841 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 842 | |
a6c65736 | 843 | return 0; |
2b97eabc RP |
844 | } |
845 | ||
c6615082 NO |
846 | /* create new dapm dai link control */ |
847 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
848 | { | |
849 | int i, ret; | |
850 | struct snd_kcontrol *kcontrol; | |
851 | struct snd_soc_dapm_context *dapm = w->dapm; | |
852 | struct snd_card *card = dapm->card->snd_card; | |
853 | ||
854 | /* create control for links with > 1 config */ | |
855 | if (w->num_params <= 1) | |
856 | return 0; | |
857 | ||
858 | /* add kcontrol */ | |
859 | for (i = 0; i < w->num_kcontrols; i++) { | |
860 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
861 | w->name, NULL); | |
862 | ret = snd_ctl_add(card, kcontrol); | |
863 | if (ret < 0) { | |
864 | dev_err(dapm->dev, | |
865 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
866 | w->name, w->kcontrol_news[i].name, ret); | |
867 | return ret; | |
868 | } | |
869 | kcontrol->private_data = w; | |
870 | w->kcontrols[i] = kcontrol; | |
871 | } | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
9949788b MB |
876 | /* We implement power down on suspend by checking the power state of |
877 | * the ALSA card - when we are suspending the ALSA state for the card | |
878 | * is set to D3. | |
879 | */ | |
880 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
881 | { | |
12ea2c78 | 882 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 883 | |
f0fba2ad | 884 | switch (level) { |
9949788b MB |
885 | case SNDRV_CTL_POWER_D3hot: |
886 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 887 | if (widget->ignore_suspend) |
30a6a1a4 | 888 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 889 | widget->name); |
1547aba9 | 890 | return widget->ignore_suspend; |
9949788b MB |
891 | default: |
892 | return 1; | |
893 | } | |
894 | } | |
895 | ||
ec2e3031 LG |
896 | /* add widget to list if it's not already in the list */ |
897 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
898 | struct snd_soc_dapm_widget *w) | |
899 | { | |
900 | struct snd_soc_dapm_widget_list *wlist; | |
901 | int wlistsize, wlistentries, i; | |
902 | ||
903 | if (*list == NULL) | |
904 | return -EINVAL; | |
905 | ||
906 | wlist = *list; | |
907 | ||
908 | /* is this widget already in the list */ | |
909 | for (i = 0; i < wlist->num_widgets; i++) { | |
910 | if (wlist->widgets[i] == w) | |
911 | return 0; | |
912 | } | |
913 | ||
914 | /* allocate some new space */ | |
915 | wlistentries = wlist->num_widgets + 1; | |
916 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
917 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
918 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
919 | if (*list == NULL) { | |
30a6a1a4 | 920 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
921 | w->name); |
922 | return -ENOMEM; | |
923 | } | |
924 | wlist = *list; | |
925 | ||
926 | /* insert the widget */ | |
30a6a1a4 | 927 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
928 | w->name, wlist->num_widgets); |
929 | ||
930 | wlist->widgets[wlist->num_widgets] = w; | |
931 | wlist->num_widgets++; | |
932 | return 1; | |
933 | } | |
934 | ||
2b97eabc RP |
935 | /* |
936 | * Recursively check for a completed path to an active or physically connected | |
937 | * output widget. Returns number of complete paths. | |
938 | */ | |
ec2e3031 LG |
939 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
940 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
941 | { |
942 | struct snd_soc_dapm_path *path; | |
943 | int con = 0; | |
944 | ||
024dc078 MB |
945 | if (widget->outputs >= 0) |
946 | return widget->outputs; | |
947 | ||
de02d078 MB |
948 | DAPM_UPDATE_STAT(widget, path_checks); |
949 | ||
6dd98b0a LPC |
950 | if (widget->is_sink && widget->connected) { |
951 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
952 | return widget->outputs; | |
2b97eabc RP |
953 | } |
954 | ||
955 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
956 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
957 | ||
c1862c8b | 958 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
959 | continue; |
960 | ||
8af294b4 MB |
961 | if (path->walking) |
962 | return 1; | |
963 | ||
ec2e3031 LG |
964 | trace_snd_soc_dapm_output_path(widget, path); |
965 | ||
7ddd4cd5 | 966 | if (path->connect) { |
8af294b4 | 967 | path->walking = 1; |
ec2e3031 LG |
968 | |
969 | /* do we need to add this widget to the list ? */ | |
970 | if (list) { | |
971 | int err; | |
972 | err = dapm_list_add_widget(list, path->sink); | |
973 | if (err < 0) { | |
30a6a1a4 LG |
974 | dev_err(widget->dapm->dev, |
975 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 976 | widget->name); |
8af294b4 | 977 | path->walking = 0; |
ec2e3031 LG |
978 | return con; |
979 | } | |
980 | } | |
981 | ||
982 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
983 | |
984 | path->walking = 0; | |
2b97eabc RP |
985 | } |
986 | } | |
987 | ||
024dc078 MB |
988 | widget->outputs = con; |
989 | ||
2b97eabc RP |
990 | return con; |
991 | } | |
992 | ||
993 | /* | |
994 | * Recursively check for a completed path to an active or physically connected | |
995 | * input widget. Returns number of complete paths. | |
996 | */ | |
ec2e3031 LG |
997 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
998 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
999 | { |
1000 | struct snd_soc_dapm_path *path; | |
1001 | int con = 0; | |
1002 | ||
024dc078 MB |
1003 | if (widget->inputs >= 0) |
1004 | return widget->inputs; | |
1005 | ||
de02d078 MB |
1006 | DAPM_UPDATE_STAT(widget, path_checks); |
1007 | ||
6dd98b0a LPC |
1008 | if (widget->is_source && widget->connected) { |
1009 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1010 | return widget->inputs; | |
2b97eabc RP |
1011 | } |
1012 | ||
1013 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1014 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1015 | ||
c1862c8b | 1016 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1017 | continue; |
1018 | ||
8af294b4 MB |
1019 | if (path->walking) |
1020 | return 1; | |
1021 | ||
ec2e3031 LG |
1022 | trace_snd_soc_dapm_input_path(widget, path); |
1023 | ||
7ddd4cd5 | 1024 | if (path->connect) { |
8af294b4 | 1025 | path->walking = 1; |
ec2e3031 LG |
1026 | |
1027 | /* do we need to add this widget to the list ? */ | |
1028 | if (list) { | |
1029 | int err; | |
90c6ce0d | 1030 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1031 | if (err < 0) { |
30a6a1a4 LG |
1032 | dev_err(widget->dapm->dev, |
1033 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1034 | widget->name); |
8af294b4 | 1035 | path->walking = 0; |
ec2e3031 LG |
1036 | return con; |
1037 | } | |
1038 | } | |
1039 | ||
1040 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1041 | |
1042 | path->walking = 0; | |
2b97eabc RP |
1043 | } |
1044 | } | |
1045 | ||
024dc078 MB |
1046 | widget->inputs = con; |
1047 | ||
2b97eabc RP |
1048 | return con; |
1049 | } | |
1050 | ||
ec2e3031 LG |
1051 | /** |
1052 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1053 | * @dai: the soc DAI. | |
1054 | * @stream: stream direction. | |
1055 | * @list: list of active widgets for this stream. | |
1056 | * | |
1057 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1058 | * the initial stream specified by name. This takes into account | |
1059 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1060 | * | |
1061 | * Returns the number of valid paths or negative error. | |
1062 | */ | |
1063 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1064 | struct snd_soc_dapm_widget_list **list) | |
1065 | { | |
313665b9 | 1066 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1067 | struct snd_soc_dapm_widget *w; |
ec2e3031 LG |
1068 | int paths; |
1069 | ||
1070 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1071 | |
1072 | /* | |
1073 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1074 | * to reset the cached number of inputs and outputs. | |
1075 | */ | |
1076 | list_for_each_entry(w, &card->widgets, list) { | |
1077 | w->inputs = -1; | |
1078 | w->outputs = -1; | |
1079 | } | |
ec2e3031 | 1080 | |
130897ac | 1081 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
ec2e3031 | 1082 | paths = is_connected_output_ep(dai->playback_widget, list); |
130897ac | 1083 | else |
d298caae | 1084 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
1085 | |
1086 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1087 | mutex_unlock(&card->dapm_mutex); |
1088 | ||
1089 | return paths; | |
1090 | } | |
1091 | ||
62ea874a MB |
1092 | /* |
1093 | * Handler for regulator supply widget. | |
1094 | */ | |
1095 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1096 | struct snd_kcontrol *kcontrol, int event) | |
1097 | { | |
c05b84d1 MB |
1098 | int ret; |
1099 | ||
eb270e98 MB |
1100 | soc_dapm_async_complete(w->dapm); |
1101 | ||
c05b84d1 | 1102 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1103 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1104 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1105 | if (ret != 0) |
1106 | dev_warn(w->dapm->dev, | |
30686c35 | 1107 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1108 | w->name, ret); |
1109 | } | |
1110 | ||
a3cc056b | 1111 | return regulator_enable(w->regulator); |
c05b84d1 | 1112 | } else { |
de9ba98b | 1113 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1114 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1115 | if (ret != 0) |
1116 | dev_warn(w->dapm->dev, | |
30686c35 | 1117 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1118 | w->name, ret); |
1119 | } | |
1120 | ||
a3cc056b | 1121 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1122 | } |
62ea874a MB |
1123 | } |
1124 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1125 | ||
d7e7eb91 OL |
1126 | /* |
1127 | * Handler for clock supply widget. | |
1128 | */ | |
1129 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1130 | struct snd_kcontrol *kcontrol, int event) | |
1131 | { | |
1132 | if (!w->clk) | |
1133 | return -EIO; | |
1134 | ||
eb270e98 MB |
1135 | soc_dapm_async_complete(w->dapm); |
1136 | ||
ec02995a | 1137 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1138 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1139 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1140 | } else { |
37c1b927 | 1141 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1142 | return 0; |
1143 | } | |
ec02995a | 1144 | #endif |
98b3cf12 | 1145 | return 0; |
d7e7eb91 OL |
1146 | } |
1147 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1148 | ||
d805002b MB |
1149 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1150 | { | |
9b8a83b2 MB |
1151 | if (w->power_checked) |
1152 | return w->new_power; | |
1153 | ||
d805002b | 1154 | if (w->force) |
9b8a83b2 | 1155 | w->new_power = 1; |
d805002b | 1156 | else |
9b8a83b2 MB |
1157 | w->new_power = w->power_check(w); |
1158 | ||
1159 | w->power_checked = true; | |
1160 | ||
1161 | return w->new_power; | |
d805002b MB |
1162 | } |
1163 | ||
cd0f2d47 MB |
1164 | /* Generic check to see if a widget should be powered. |
1165 | */ | |
1166 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1167 | { | |
1168 | int in, out; | |
1169 | ||
de02d078 MB |
1170 | DAPM_UPDATE_STAT(w, power_checks); |
1171 | ||
ec2e3031 | 1172 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1173 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1174 | return out != 0 && in != 0; |
1175 | } | |
1176 | ||
246d0a17 MB |
1177 | /* Check to see if a power supply is needed */ |
1178 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1179 | { | |
1180 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1181 | |
de02d078 MB |
1182 | DAPM_UPDATE_STAT(w, power_checks); |
1183 | ||
246d0a17 MB |
1184 | /* Check if one of our outputs is connected */ |
1185 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1186 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1187 | ||
bf3a9e13 MB |
1188 | if (path->weak) |
1189 | continue; | |
1190 | ||
215edda3 MB |
1191 | if (path->connected && |
1192 | !path->connected(path->source, path->sink)) | |
1193 | continue; | |
1194 | ||
f68d7e16 MB |
1195 | if (dapm_widget_power_check(path->sink)) |
1196 | return 1; | |
246d0a17 MB |
1197 | } |
1198 | ||
f68d7e16 | 1199 | return 0; |
246d0a17 MB |
1200 | } |
1201 | ||
35c64bca MB |
1202 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1203 | { | |
1204 | return 1; | |
1205 | } | |
1206 | ||
38357ab2 MB |
1207 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1208 | struct snd_soc_dapm_widget *b, | |
828a842f | 1209 | bool power_up) |
42aa3418 | 1210 | { |
828a842f MB |
1211 | int *sort; |
1212 | ||
1213 | if (power_up) | |
1214 | sort = dapm_up_seq; | |
1215 | else | |
1216 | sort = dapm_down_seq; | |
1217 | ||
38357ab2 MB |
1218 | if (sort[a->id] != sort[b->id]) |
1219 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1220 | if (a->subseq != b->subseq) { |
1221 | if (power_up) | |
1222 | return a->subseq - b->subseq; | |
1223 | else | |
1224 | return b->subseq - a->subseq; | |
1225 | } | |
b22ead2a MB |
1226 | if (a->reg != b->reg) |
1227 | return a->reg - b->reg; | |
84dab567 MB |
1228 | if (a->dapm != b->dapm) |
1229 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1230 | |
38357ab2 MB |
1231 | return 0; |
1232 | } | |
42aa3418 | 1233 | |
38357ab2 MB |
1234 | /* Insert a widget in order into a DAPM power sequence. */ |
1235 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1236 | struct list_head *list, | |
828a842f | 1237 | bool power_up) |
38357ab2 MB |
1238 | { |
1239 | struct snd_soc_dapm_widget *w; | |
1240 | ||
1241 | list_for_each_entry(w, list, power_list) | |
828a842f | 1242 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1243 | list_add_tail(&new_widget->power_list, &w->power_list); |
1244 | return; | |
1245 | } | |
1246 | ||
1247 | list_add_tail(&new_widget->power_list, list); | |
1248 | } | |
1249 | ||
95dd5cd6 | 1250 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1251 | struct snd_soc_dapm_widget *w, int event) |
1252 | { | |
68f89ad8 MB |
1253 | const char *ev_name; |
1254 | int power, ret; | |
1255 | ||
1256 | switch (event) { | |
1257 | case SND_SOC_DAPM_PRE_PMU: | |
1258 | ev_name = "PRE_PMU"; | |
1259 | power = 1; | |
1260 | break; | |
1261 | case SND_SOC_DAPM_POST_PMU: | |
1262 | ev_name = "POST_PMU"; | |
1263 | power = 1; | |
1264 | break; | |
1265 | case SND_SOC_DAPM_PRE_PMD: | |
1266 | ev_name = "PRE_PMD"; | |
1267 | power = 0; | |
1268 | break; | |
1269 | case SND_SOC_DAPM_POST_PMD: | |
1270 | ev_name = "POST_PMD"; | |
1271 | power = 0; | |
1272 | break; | |
80114129 MB |
1273 | case SND_SOC_DAPM_WILL_PMU: |
1274 | ev_name = "WILL_PMU"; | |
1275 | power = 1; | |
1276 | break; | |
1277 | case SND_SOC_DAPM_WILL_PMD: | |
1278 | ev_name = "WILL_PMD"; | |
1279 | power = 0; | |
1280 | break; | |
68f89ad8 | 1281 | default: |
a6ed0608 | 1282 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1283 | return; |
1284 | } | |
1285 | ||
39eb5fd1 | 1286 | if (w->new_power != power) |
68f89ad8 MB |
1287 | return; |
1288 | ||
1289 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1290 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1291 | w->name, ev_name); |
eb270e98 | 1292 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1293 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1294 | ret = w->event(w, NULL, event); |
84e90930 | 1295 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1296 | if (ret < 0) |
95dd5cd6 | 1297 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1298 | ev_name, w->name, ret); |
1299 | } | |
1300 | } | |
1301 | ||
b22ead2a | 1302 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1303 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1304 | struct list_head *pending) |
163cac06 | 1305 | { |
ce0fc93a | 1306 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1307 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1308 | int reg; |
b22ead2a MB |
1309 | unsigned int value = 0; |
1310 | unsigned int mask = 0; | |
b22ead2a | 1311 | |
ce0fc93a LPC |
1312 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1313 | reg = w->reg; | |
1314 | dapm = w->dapm; | |
b22ead2a MB |
1315 | |
1316 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1317 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1318 | w->power = w->new_power; |
b22ead2a | 1319 | |
de9ba98b LPC |
1320 | mask |= w->mask << w->shift; |
1321 | if (w->power) | |
1322 | value |= w->on_val << w->shift; | |
b22ead2a | 1323 | else |
de9ba98b | 1324 | value |= w->off_val << w->shift; |
b22ead2a | 1325 | |
ce0fc93a | 1326 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1327 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1328 | w->name, reg, value, mask); | |
81628103 | 1329 | |
68f89ad8 | 1330 | /* Check for events */ |
95dd5cd6 LPC |
1331 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1332 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1333 | } |
1334 | ||
1335 | if (reg >= 0) { | |
29376bc7 MB |
1336 | /* Any widget will do, they should all be updating the |
1337 | * same register. | |
1338 | */ | |
29376bc7 | 1339 | |
ce0fc93a | 1340 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1341 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1342 | value, mask, reg, card->pop_time); |
1343 | pop_wait(card->pop_time); | |
ce0fc93a | 1344 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1345 | } |
1346 | ||
81628103 | 1347 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1348 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1349 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1350 | } |
b22ead2a | 1351 | } |
42aa3418 | 1352 | |
b22ead2a MB |
1353 | /* Apply a DAPM power sequence. |
1354 | * | |
1355 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1356 | * order to minimise the number of writes to the device required | |
1357 | * multiple widgets will be updated in a single write where possible. | |
1358 | * Currently anything that requires more than a single write is not | |
1359 | * handled. | |
1360 | */ | |
95dd5cd6 LPC |
1361 | static void dapm_seq_run(struct snd_soc_card *card, |
1362 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1363 | { |
1364 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1365 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1366 | LIST_HEAD(pending); |
1367 | int cur_sort = -1; | |
20e4859d | 1368 | int cur_subseq = -1; |
b22ead2a | 1369 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1370 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1371 | int ret, i; |
828a842f MB |
1372 | int *sort; |
1373 | ||
1374 | if (power_up) | |
1375 | sort = dapm_up_seq; | |
1376 | else | |
1377 | sort = dapm_down_seq; | |
163cac06 | 1378 | |
b22ead2a MB |
1379 | list_for_each_entry_safe(w, n, list, power_list) { |
1380 | ret = 0; | |
1381 | ||
1382 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1383 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1384 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1385 | if (!list_empty(&pending)) |
95dd5cd6 | 1386 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1387 | |
474b62d6 MB |
1388 | if (cur_dapm && cur_dapm->seq_notifier) { |
1389 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1390 | if (sort[i] == cur_sort) | |
1391 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1392 | i, |
1393 | cur_subseq); | |
474b62d6 MB |
1394 | } |
1395 | ||
eb270e98 MB |
1396 | if (cur_dapm && w->dapm != cur_dapm) |
1397 | soc_dapm_async_complete(cur_dapm); | |
1398 | ||
b22ead2a MB |
1399 | INIT_LIST_HEAD(&pending); |
1400 | cur_sort = -1; | |
b0b3e6f8 | 1401 | cur_subseq = INT_MIN; |
b22ead2a | 1402 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1403 | cur_dapm = NULL; |
b22ead2a MB |
1404 | } |
1405 | ||
163cac06 MB |
1406 | switch (w->id) { |
1407 | case snd_soc_dapm_pre: | |
1408 | if (!w->event) | |
b22ead2a MB |
1409 | list_for_each_entry_safe_continue(w, n, list, |
1410 | power_list); | |
163cac06 | 1411 | |
b22ead2a | 1412 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1413 | ret = w->event(w, |
1414 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1415 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1416 | ret = w->event(w, |
1417 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1418 | break; |
1419 | ||
1420 | case snd_soc_dapm_post: | |
1421 | if (!w->event) | |
b22ead2a MB |
1422 | list_for_each_entry_safe_continue(w, n, list, |
1423 | power_list); | |
163cac06 | 1424 | |
b22ead2a | 1425 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1426 | ret = w->event(w, |
1427 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1428 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1429 | ret = w->event(w, |
1430 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1431 | break; |
1432 | ||
b22ead2a | 1433 | default: |
81628103 MB |
1434 | /* Queue it up for application */ |
1435 | cur_sort = sort[w->id]; | |
20e4859d | 1436 | cur_subseq = w->subseq; |
81628103 | 1437 | cur_reg = w->reg; |
7be31be8 | 1438 | cur_dapm = w->dapm; |
81628103 MB |
1439 | list_move(&w->power_list, &pending); |
1440 | break; | |
163cac06 | 1441 | } |
b22ead2a MB |
1442 | |
1443 | if (ret < 0) | |
f7d41ae8 | 1444 | dev_err(w->dapm->dev, |
30a6a1a4 | 1445 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1446 | } |
b22ead2a MB |
1447 | |
1448 | if (!list_empty(&pending)) | |
95dd5cd6 | 1449 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1450 | |
1451 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1452 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1453 | if (sort[i] == cur_sort) | |
1454 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1455 | i, cur_subseq); |
474b62d6 | 1456 | } |
eb270e98 MB |
1457 | |
1458 | list_for_each_entry(d, &card->dapm_list, list) { | |
1459 | soc_dapm_async_complete(d); | |
1460 | } | |
42aa3418 MB |
1461 | } |
1462 | ||
95dd5cd6 | 1463 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1464 | { |
95dd5cd6 | 1465 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1466 | struct snd_soc_dapm_widget_list *wlist; |
1467 | struct snd_soc_dapm_widget *w = NULL; | |
1468 | unsigned int wi; | |
97404f2e MB |
1469 | int ret; |
1470 | ||
57295073 | 1471 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1472 | return; |
1473 | ||
e84357f7 | 1474 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1475 | |
ce6cfaf1 LPC |
1476 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1477 | w = wlist->widgets[wi]; | |
1478 | ||
1479 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1480 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1481 | if (ret != 0) | |
95dd5cd6 | 1482 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1483 | w->name, ret); |
1484 | } | |
97404f2e MB |
1485 | } |
1486 | ||
ce6cfaf1 LPC |
1487 | if (!w) |
1488 | return; | |
1489 | ||
ce0fc93a LPC |
1490 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1491 | update->val); | |
97404f2e | 1492 | if (ret < 0) |
95dd5cd6 | 1493 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1494 | w->name, ret); |
97404f2e | 1495 | |
ce6cfaf1 LPC |
1496 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1497 | w = wlist->widgets[wi]; | |
1498 | ||
1499 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1500 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1501 | if (ret != 0) | |
95dd5cd6 | 1502 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1503 | w->name, ret); |
1504 | } | |
97404f2e MB |
1505 | } |
1506 | } | |
1507 | ||
9d0624a7 MB |
1508 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1509 | * they're changing state. | |
1510 | */ | |
1511 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1512 | { | |
1513 | struct snd_soc_dapm_context *d = data; | |
1514 | int ret; | |
1515 | ||
56fba41f MB |
1516 | /* If we're off and we're not supposed to be go into STANDBY */ |
1517 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1518 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1519 | if (d->dev) |
1520 | pm_runtime_get_sync(d->dev); | |
1521 | ||
9d0624a7 MB |
1522 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1523 | if (ret != 0) | |
1524 | dev_err(d->dev, | |
30a6a1a4 | 1525 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1526 | } |
1527 | ||
ce85a4d7 LPC |
1528 | /* Prepare for a transition to ON or away from ON */ |
1529 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1530 | d->bias_level != SND_SOC_BIAS_ON) || | |
1531 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1532 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1533 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1534 | if (ret != 0) | |
1535 | dev_err(d->dev, | |
30a6a1a4 | 1536 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1537 | } |
1538 | } | |
1539 | ||
1540 | /* Async callback run prior to DAPM sequences - brings to their final | |
1541 | * state. | |
1542 | */ | |
1543 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1544 | { | |
1545 | struct snd_soc_dapm_context *d = data; | |
1546 | int ret; | |
1547 | ||
1548 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1549 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1550 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1551 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1552 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1553 | if (ret != 0) | |
30a6a1a4 | 1554 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1555 | ret); |
1556 | } | |
97404f2e | 1557 | |
9d0624a7 | 1558 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1559 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1560 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1561 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1562 | if (ret != 0) | |
30a6a1a4 LG |
1563 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1564 | ret); | |
f1aac484 MB |
1565 | |
1566 | if (d->dev) | |
fb644e9c | 1567 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1568 | } |
1569 | ||
1570 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1571 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1572 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1573 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1574 | if (ret != 0) | |
30a6a1a4 | 1575 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1576 | ret); |
1577 | } | |
1578 | } | |
97404f2e | 1579 | |
fe4fda5d MB |
1580 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1581 | bool power, bool connect) | |
1582 | { | |
1583 | /* If a connection is being made or broken then that update | |
1584 | * will have marked the peer dirty, otherwise the widgets are | |
1585 | * not connected and this update has no impact. */ | |
1586 | if (!connect) | |
1587 | return; | |
1588 | ||
1589 | /* If the peer is already in the state we're moving to then we | |
1590 | * won't have an impact on it. */ | |
1591 | if (power != peer->power) | |
75c1f891 | 1592 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1593 | } |
1594 | ||
05623c43 MB |
1595 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1596 | struct list_head *up_list, | |
1597 | struct list_head *down_list) | |
1598 | { | |
db432b41 MB |
1599 | struct snd_soc_dapm_path *path; |
1600 | ||
05623c43 MB |
1601 | if (w->power == power) |
1602 | return; | |
1603 | ||
1604 | trace_snd_soc_dapm_widget_power(w, power); | |
1605 | ||
db432b41 | 1606 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1607 | * also. |
db432b41 | 1608 | */ |
7ddd4cd5 LPC |
1609 | list_for_each_entry(path, &w->sources, list_sink) |
1610 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1611 | ||
6dd98b0a LPC |
1612 | /* Supplies can't affect their outputs, only their inputs */ |
1613 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1614 | list_for_each_entry(path, &w->sinks, list_source) |
1615 | dapm_widget_set_peer_power(path->sink, power, | |
1616 | path->connect); | |
db432b41 MB |
1617 | } |
1618 | ||
05623c43 MB |
1619 | if (power) |
1620 | dapm_seq_insert(w, up_list, true); | |
1621 | else | |
1622 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1623 | } |
1624 | ||
7c81beb0 MB |
1625 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1626 | struct list_head *up_list, | |
1627 | struct list_head *down_list) | |
1628 | { | |
7c81beb0 MB |
1629 | int power; |
1630 | ||
1631 | switch (w->id) { | |
1632 | case snd_soc_dapm_pre: | |
1633 | dapm_seq_insert(w, down_list, false); | |
1634 | break; | |
1635 | case snd_soc_dapm_post: | |
1636 | dapm_seq_insert(w, up_list, true); | |
1637 | break; | |
1638 | ||
1639 | default: | |
d805002b | 1640 | power = dapm_widget_power_check(w); |
7c81beb0 | 1641 | |
05623c43 | 1642 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1643 | break; |
1644 | } | |
1645 | } | |
1646 | ||
86dbf2ac LPC |
1647 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1648 | { | |
1649 | if (dapm->idle_bias_off) | |
1650 | return true; | |
1651 | ||
1652 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1653 | case SNDRV_CTL_POWER_D3hot: | |
1654 | case SNDRV_CTL_POWER_D3cold: | |
1655 | return dapm->suspend_bias_off; | |
1656 | default: | |
1657 | break; | |
1658 | } | |
1659 | ||
1660 | return false; | |
1661 | } | |
1662 | ||
2b97eabc RP |
1663 | /* |
1664 | * Scan each dapm widget for complete audio path. | |
1665 | * A complete path is a route that has valid endpoints i.e.:- | |
1666 | * | |
1667 | * o DAC to output pin. | |
1668 | * o Input Pin to ADC. | |
1669 | * o Input pin to Output pin (bypass, sidetone) | |
1670 | * o DAC to ADC (loopback). | |
1671 | */ | |
95dd5cd6 | 1672 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1673 | { |
1674 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1675 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1676 | LIST_HEAD(up_list); |
1677 | LIST_HEAD(down_list); | |
2955b47d | 1678 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1679 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1680 | |
f9fa2b18 MB |
1681 | lockdep_assert_held(&card->dapm_mutex); |
1682 | ||
84e90930 MB |
1683 | trace_snd_soc_dapm_start(card); |
1684 | ||
56fba41f | 1685 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1686 | if (dapm_idle_bias_off(d)) |
497098be MB |
1687 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1688 | else | |
1689 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1690 | } |
7be31be8 | 1691 | |
6c120e19 | 1692 | dapm_reset(card); |
9b8a83b2 | 1693 | |
6d3ddc81 | 1694 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1695 | * lists indicating if they should be powered up or down. We |
1696 | * only check widgets that have been flagged as dirty but note | |
1697 | * that new widgets may be added to the dirty list while we | |
1698 | * iterate. | |
6d3ddc81 | 1699 | */ |
db432b41 | 1700 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1701 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1702 | } |
1703 | ||
f9de6d74 | 1704 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1705 | switch (w->id) { |
1706 | case snd_soc_dapm_pre: | |
1707 | case snd_soc_dapm_post: | |
1708 | /* These widgets always need to be powered */ | |
1709 | break; | |
1710 | default: | |
1711 | list_del_init(&w->dirty); | |
1712 | break; | |
1713 | } | |
db432b41 | 1714 | |
39eb5fd1 | 1715 | if (w->new_power) { |
f9de6d74 MB |
1716 | d = w->dapm; |
1717 | ||
1718 | /* Supplies and micbiases only bring the | |
1719 | * context up to STANDBY as unless something | |
1720 | * else is active and passing audio they | |
afe62367 MB |
1721 | * generally don't require full power. Signal |
1722 | * generators are virtual pins and have no | |
1723 | * power impact themselves. | |
f9de6d74 MB |
1724 | */ |
1725 | switch (w->id) { | |
afe62367 | 1726 | case snd_soc_dapm_siggen: |
da83fea6 | 1727 | case snd_soc_dapm_vmid: |
afe62367 | 1728 | break; |
f9de6d74 | 1729 | case snd_soc_dapm_supply: |
62ea874a | 1730 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1731 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1732 | case snd_soc_dapm_micbias: |
1733 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1734 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1735 | break; | |
1736 | default: | |
1737 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1738 | break; | |
1739 | } | |
1740 | } | |
1741 | ||
1742 | } | |
1743 | ||
85a843c5 MB |
1744 | /* Force all contexts in the card to the same bias state if |
1745 | * they're not ground referenced. | |
1746 | */ | |
56fba41f | 1747 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1748 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1749 | if (d->target_bias_level > bias) |
1750 | bias = d->target_bias_level; | |
52ba67bf | 1751 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1752 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1753 | d->target_bias_level = bias; |
52ba67bf | 1754 | |
de02d078 | 1755 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1756 | |
17282ba4 XX |
1757 | /* Run card bias changes at first */ |
1758 | dapm_pre_sequence_async(&card->dapm, 0); | |
1759 | /* Run other bias changes in parallel */ | |
1760 | list_for_each_entry(d, &card->dapm_list, list) { | |
1761 | if (d != &card->dapm) | |
1762 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1763 | &async_domain); | |
1764 | } | |
9d0624a7 | 1765 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1766 | |
cf1f7c6e | 1767 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1768 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1769 | } |
1770 | ||
cf1f7c6e | 1771 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1772 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1773 | } |
1774 | ||
6d3ddc81 | 1775 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1776 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1777 | |
95dd5cd6 | 1778 | dapm_widget_update(card); |
97404f2e | 1779 | |
6d3ddc81 | 1780 | /* Now power up. */ |
95dd5cd6 | 1781 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1782 | |
9d0624a7 | 1783 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1784 | list_for_each_entry(d, &card->dapm_list, list) { |
1785 | if (d != &card->dapm) | |
1786 | async_schedule_domain(dapm_post_sequence_async, d, | |
1787 | &async_domain); | |
1788 | } | |
9d0624a7 | 1789 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1790 | /* Run card bias changes at last */ |
1791 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1792 | |
8078d87f LG |
1793 | /* do we need to notify any clients that DAPM event is complete */ |
1794 | list_for_each_entry(d, &card->dapm_list, list) { | |
1795 | if (d->stream_event) | |
1796 | d->stream_event(d, event); | |
1797 | } | |
1798 | ||
95dd5cd6 | 1799 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1800 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1801 | pop_wait(card->pop_time); |
cb507e7e | 1802 | |
84e90930 MB |
1803 | trace_snd_soc_dapm_done(card); |
1804 | ||
42aa3418 | 1805 | return 0; |
2b97eabc RP |
1806 | } |
1807 | ||
79fb9387 | 1808 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1809 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1810 | char __user *user_buf, | |
1811 | size_t count, loff_t *ppos) | |
1812 | { | |
1813 | struct snd_soc_dapm_widget *w = file->private_data; | |
1814 | char *buf; | |
1815 | int in, out; | |
1816 | ssize_t ret; | |
1817 | struct snd_soc_dapm_path *p = NULL; | |
1818 | ||
1819 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1820 | if (!buf) | |
1821 | return -ENOMEM; | |
1822 | ||
c1862c8b LPC |
1823 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1824 | if (w->is_supply) { | |
1825 | in = 0; | |
1826 | out = 0; | |
1827 | } else { | |
1828 | in = is_connected_input_ep(w, NULL); | |
1829 | out = is_connected_output_ep(w, NULL); | |
1830 | } | |
79fb9387 | 1831 | |
f13ebada MB |
1832 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1833 | w->name, w->power ? "On" : "Off", | |
1834 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1835 | |
d033c36a MB |
1836 | if (w->reg >= 0) |
1837 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1838 | " - R%d(0x%x) mask 0x%x", |
1839 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1840 | |
1841 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1842 | ||
3eef08ba MB |
1843 | if (w->sname) |
1844 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1845 | w->sname, | |
1846 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1847 | |
1848 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1849 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1850 | continue; |
1851 | ||
79fb9387 MB |
1852 | if (p->connect) |
1853 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1854 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1855 | p->name ? p->name : "static", |
1856 | p->source->name); | |
1857 | } | |
1858 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1859 | if (p->connected && !p->connected(w, p->sink)) |
1860 | continue; | |
1861 | ||
79fb9387 MB |
1862 | if (p->connect) |
1863 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1864 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1865 | p->name ? p->name : "static", |
1866 | p->sink->name); | |
1867 | } | |
1868 | ||
1869 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1870 | ||
1871 | kfree(buf); | |
1872 | return ret; | |
1873 | } | |
1874 | ||
1875 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1876 | .open = simple_open, |
79fb9387 | 1877 | .read = dapm_widget_power_read_file, |
6038f373 | 1878 | .llseek = default_llseek, |
79fb9387 MB |
1879 | }; |
1880 | ||
ef49e4fa MB |
1881 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1882 | size_t count, loff_t *ppos) | |
1883 | { | |
1884 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1885 | char *level; | |
1886 | ||
1887 | switch (dapm->bias_level) { | |
1888 | case SND_SOC_BIAS_ON: | |
1889 | level = "On\n"; | |
1890 | break; | |
1891 | case SND_SOC_BIAS_PREPARE: | |
1892 | level = "Prepare\n"; | |
1893 | break; | |
1894 | case SND_SOC_BIAS_STANDBY: | |
1895 | level = "Standby\n"; | |
1896 | break; | |
1897 | case SND_SOC_BIAS_OFF: | |
1898 | level = "Off\n"; | |
1899 | break; | |
1900 | default: | |
a6ed0608 | 1901 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1902 | level = "Unknown\n"; |
1903 | break; | |
1904 | } | |
1905 | ||
1906 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1907 | strlen(level)); | |
1908 | } | |
1909 | ||
1910 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1911 | .open = simple_open, |
ef49e4fa MB |
1912 | .read = dapm_bias_read_file, |
1913 | .llseek = default_llseek, | |
1914 | }; | |
1915 | ||
8eecaf62 LPC |
1916 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1917 | struct dentry *parent) | |
79fb9387 | 1918 | { |
79fb9387 MB |
1919 | struct dentry *d; |
1920 | ||
6553bf06 LPC |
1921 | if (!parent) |
1922 | return; | |
1923 | ||
8eecaf62 LPC |
1924 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1925 | ||
1926 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1927 | dev_warn(dapm->dev, |
30a6a1a4 | 1928 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1929 | return; |
8eecaf62 | 1930 | } |
79fb9387 | 1931 | |
ef49e4fa MB |
1932 | d = debugfs_create_file("bias_level", 0444, |
1933 | dapm->debugfs_dapm, dapm, | |
1934 | &dapm_bias_fops); | |
1935 | if (!d) | |
1936 | dev_warn(dapm->dev, | |
1937 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1938 | } |
ef49e4fa | 1939 | |
d5d1e0be LPC |
1940 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1941 | { | |
1942 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1943 | struct dentry *d; | |
79fb9387 | 1944 | |
d5d1e0be LPC |
1945 | if (!dapm->debugfs_dapm || !w->name) |
1946 | return; | |
1947 | ||
1948 | d = debugfs_create_file(w->name, 0444, | |
1949 | dapm->debugfs_dapm, w, | |
1950 | &dapm_widget_power_fops); | |
1951 | if (!d) | |
1952 | dev_warn(w->dapm->dev, | |
1953 | "ASoC: Failed to create %s debugfs file\n", | |
1954 | w->name); | |
79fb9387 | 1955 | } |
d5d1e0be | 1956 | |
6c45e126 LPC |
1957 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1958 | { | |
1959 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1960 | } | |
1961 | ||
79fb9387 | 1962 | #else |
8eecaf62 LPC |
1963 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1964 | struct dentry *parent) | |
79fb9387 MB |
1965 | { |
1966 | } | |
d5d1e0be LPC |
1967 | |
1968 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1969 | { | |
1970 | } | |
1971 | ||
6c45e126 LPC |
1972 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1973 | { | |
1974 | } | |
1975 | ||
79fb9387 MB |
1976 | #endif |
1977 | ||
4a201948 LPC |
1978 | /* |
1979 | * soc_dapm_connect_path() - Connects or disconnects a path | |
1980 | * @path: The path to update | |
1981 | * @connect: The new connect state of the path. True if the path is connected, | |
1982 | * false if it is disconneted. | |
1983 | * @reason: The reason why the path changed (for debugging only) | |
1984 | */ | |
1985 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
1986 | bool connect, const char *reason) | |
1987 | { | |
1988 | if (path->connect == connect) | |
1989 | return; | |
1990 | ||
1991 | path->connect = connect; | |
1992 | dapm_mark_dirty(path->source, reason); | |
1993 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 1994 | dapm_path_invalidate(path); |
4a201948 LPC |
1995 | } |
1996 | ||
2b97eabc | 1997 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 1998 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 1999 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2000 | { |
2001 | struct snd_soc_dapm_path *path; | |
2002 | int found = 0; | |
4a201948 | 2003 | bool connect; |
2b97eabc | 2004 | |
f9fa2b18 MB |
2005 | lockdep_assert_held(&card->dapm_mutex); |
2006 | ||
2b97eabc | 2007 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2008 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2009 | found = 1; |
2010 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2011 | if (!(strcmp(path->name, e->texts[mux]))) |
2012 | connect = true; | |
2013 | else | |
2014 | connect = false; | |
2015 | ||
2016 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2017 | } |
2018 | ||
ce6cfaf1 | 2019 | if (found) |
95dd5cd6 | 2020 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2021 | |
618dae11 | 2022 | return found; |
2b97eabc | 2023 | } |
4edbb345 | 2024 | |
ce6cfaf1 | 2025 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2026 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2027 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2028 | { |
ce6cfaf1 | 2029 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2030 | int ret; |
2031 | ||
3cd04343 | 2032 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2033 | card->update = update; |
95dd5cd6 | 2034 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2035 | card->update = NULL; |
4edbb345 | 2036 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2037 | if (ret > 0) |
c3f48ae6 | 2038 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2039 | return ret; |
2040 | } | |
40f02cd9 | 2041 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2042 | |
1b075e3f | 2043 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2044 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2045 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2046 | { |
2047 | struct snd_soc_dapm_path *path; | |
2048 | int found = 0; | |
2049 | ||
f9fa2b18 MB |
2050 | lockdep_assert_held(&card->dapm_mutex); |
2051 | ||
2b97eabc | 2052 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2053 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2054 | found = 1; |
4a201948 | 2055 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2056 | } |
2057 | ||
ce6cfaf1 | 2058 | if (found) |
95dd5cd6 | 2059 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2060 | |
618dae11 | 2061 | return found; |
2b97eabc | 2062 | } |
4edbb345 | 2063 | |
ce6cfaf1 | 2064 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2065 | struct snd_kcontrol *kcontrol, int connect, |
2066 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2067 | { |
ce6cfaf1 | 2068 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2069 | int ret; |
2070 | ||
3cd04343 | 2071 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2072 | card->update = update; |
95dd5cd6 | 2073 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2074 | card->update = NULL; |
4edbb345 | 2075 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2076 | if (ret > 0) |
c3f48ae6 | 2077 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2078 | return ret; |
2079 | } | |
40f02cd9 | 2080 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2081 | |
44ba2641 | 2082 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2083 | { |
2b97eabc RP |
2084 | struct snd_soc_dapm_widget *w; |
2085 | int count = 0; | |
2086 | char *state = "not set"; | |
2087 | ||
00200107 | 2088 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2089 | if (w->dapm != &codec->dapm) |
2090 | continue; | |
2b97eabc RP |
2091 | |
2092 | /* only display widgets that burnm power */ | |
2093 | switch (w->id) { | |
2094 | case snd_soc_dapm_hp: | |
2095 | case snd_soc_dapm_mic: | |
2096 | case snd_soc_dapm_spk: | |
2097 | case snd_soc_dapm_line: | |
2098 | case snd_soc_dapm_micbias: | |
2099 | case snd_soc_dapm_dac: | |
2100 | case snd_soc_dapm_adc: | |
2101 | case snd_soc_dapm_pga: | |
d88429a6 | 2102 | case snd_soc_dapm_out_drv: |
2b97eabc | 2103 | case snd_soc_dapm_mixer: |
ca9c1aae | 2104 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2105 | case snd_soc_dapm_supply: |
62ea874a | 2106 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2107 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2108 | if (w->name) |
2109 | count += sprintf(buf + count, "%s: %s\n", | |
2110 | w->name, w->power ? "On":"Off"); | |
2111 | break; | |
2112 | default: | |
2113 | break; | |
2114 | } | |
2115 | } | |
2116 | ||
ce6120cc | 2117 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2118 | case SND_SOC_BIAS_ON: |
2119 | state = "On"; | |
2b97eabc | 2120 | break; |
0be9898a MB |
2121 | case SND_SOC_BIAS_PREPARE: |
2122 | state = "Prepare"; | |
2b97eabc | 2123 | break; |
0be9898a MB |
2124 | case SND_SOC_BIAS_STANDBY: |
2125 | state = "Standby"; | |
2b97eabc | 2126 | break; |
0be9898a MB |
2127 | case SND_SOC_BIAS_OFF: |
2128 | state = "Off"; | |
2b97eabc RP |
2129 | break; |
2130 | } | |
2131 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2132 | ||
2133 | return count; | |
2134 | } | |
2135 | ||
44ba2641 BC |
2136 | /* show dapm widget status in sys fs */ |
2137 | static ssize_t dapm_widget_show(struct device *dev, | |
2138 | struct device_attribute *attr, char *buf) | |
2139 | { | |
2140 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2141 | int i, count = 0; | |
2142 | ||
2143 | for (i = 0; i < rtd->num_codecs; i++) { | |
2144 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2145 | count += dapm_widget_show_codec(codec, buf + count); | |
2146 | } | |
2147 | ||
2148 | return count; | |
2149 | } | |
2150 | ||
2b97eabc RP |
2151 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2152 | ||
d29697dc TI |
2153 | struct attribute *soc_dapm_dev_attrs[] = { |
2154 | &dev_attr_dapm_widget.attr, | |
2155 | NULL | |
2156 | }; | |
2b97eabc | 2157 | |
8872293f LPC |
2158 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2159 | { | |
2160 | list_del(&path->list_sink); | |
2161 | list_del(&path->list_source); | |
5106b92f | 2162 | list_del(&path->list_kcontrol); |
8872293f | 2163 | list_del(&path->list); |
8872293f LPC |
2164 | kfree(path); |
2165 | } | |
2166 | ||
2b97eabc | 2167 | /* free all dapm widgets and resources */ |
ce6120cc | 2168 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2169 | { |
2170 | struct snd_soc_dapm_widget *w, *next_w; | |
2171 | struct snd_soc_dapm_path *p, *next_p; | |
2172 | ||
97c866de JN |
2173 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2174 | if (w->dapm != dapm) | |
2175 | continue; | |
2b97eabc | 2176 | list_del(&w->list); |
8ddab3f5 JN |
2177 | /* |
2178 | * remove source and sink paths associated to this widget. | |
2179 | * While removing the path, remove reference to it from both | |
2180 | * source and sink widgets so that path is removed only once. | |
2181 | */ | |
8872293f LPC |
2182 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2183 | dapm_free_path(p); | |
2184 | ||
2185 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2186 | dapm_free_path(p); | |
2187 | ||
fad59888 | 2188 | kfree(w->kcontrols); |
ead9b919 | 2189 | kfree(w->name); |
2b97eabc RP |
2190 | kfree(w); |
2191 | } | |
2b97eabc RP |
2192 | } |
2193 | ||
91a5fca4 LPC |
2194 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2195 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2196 | bool search_other_contexts) | |
a5302181 LG |
2197 | { |
2198 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2199 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2200 | |
97c866de | 2201 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2202 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2203 | if (w->dapm == dapm) |
2204 | return w; | |
2205 | else | |
2206 | fallback = w; | |
a5302181 LG |
2207 | } |
2208 | } | |
2209 | ||
91a5fca4 LPC |
2210 | if (search_other_contexts) |
2211 | return fallback; | |
2212 | ||
2213 | return NULL; | |
2214 | } | |
2215 | ||
2216 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2217 | const char *pin, int status) | |
2218 | { | |
2219 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2220 | ||
f9fa2b18 MB |
2221 | dapm_assert_locked(dapm); |
2222 | ||
91a5fca4 | 2223 | if (!w) { |
30a6a1a4 | 2224 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2225 | return -EINVAL; |
0d86733c MB |
2226 | } |
2227 | ||
92a99ea4 | 2228 | if (w->connected != status) { |
1a8b2d9d | 2229 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2230 | dapm_widget_invalidate_input_paths(w); |
2231 | dapm_widget_invalidate_output_paths(w); | |
2232 | } | |
1a8b2d9d | 2233 | |
91a5fca4 LPC |
2234 | w->connected = status; |
2235 | if (status == 0) | |
2236 | w->force = 0; | |
2237 | ||
2238 | return 0; | |
a5302181 LG |
2239 | } |
2240 | ||
2b97eabc | 2241 | /** |
3eb29dfb | 2242 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2243 | * @dapm: DAPM context |
2b97eabc RP |
2244 | * |
2245 | * Walks all dapm audio paths and powers widgets according to their | |
2246 | * stream or path usage. | |
2247 | * | |
3eb29dfb CK |
2248 | * Requires external locking. |
2249 | * | |
2b97eabc RP |
2250 | * Returns 0 for success. |
2251 | */ | |
3eb29dfb | 2252 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2253 | { |
4f4c0072 MB |
2254 | /* |
2255 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2256 | * silly DAPM runs during card startup. | |
2257 | */ | |
2258 | if (!dapm->card || !dapm->card->instantiated) | |
2259 | return 0; | |
2260 | ||
3eb29dfb CK |
2261 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2262 | } | |
2263 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2264 | ||
2265 | /** | |
2266 | * snd_soc_dapm_sync - scan and power dapm paths | |
2267 | * @dapm: DAPM context | |
2268 | * | |
2269 | * Walks all dapm audio paths and powers widgets according to their | |
2270 | * stream or path usage. | |
2271 | * | |
2272 | * Returns 0 for success. | |
2273 | */ | |
2274 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2275 | { | |
2276 | int ret; | |
2277 | ||
3cd04343 | 2278 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2279 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2280 | mutex_unlock(&dapm->card->dapm_mutex); |
2281 | return ret; | |
2b97eabc | 2282 | } |
a5302181 | 2283 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2284 | |
6dd98b0a LPC |
2285 | /* |
2286 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2287 | * @w: The widget for which to update the flags | |
2288 | * | |
2289 | * Some widgets have a dynamic category which depends on which neighbors they | |
2290 | * are connected to. This function update the category for these widgets. | |
2291 | * | |
2292 | * This function must be called whenever a path is added or removed to a widget. | |
2293 | */ | |
2294 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2295 | { | |
2296 | struct snd_soc_dapm_path *p; | |
2297 | ||
2298 | switch (w->id) { | |
2299 | case snd_soc_dapm_input: | |
86d75003 LPC |
2300 | /* On a fully routed card a input is never a source */ |
2301 | if (w->dapm->card->fully_routed) | |
2302 | break; | |
6dd98b0a LPC |
2303 | w->is_source = 1; |
2304 | list_for_each_entry(p, &w->sources, list_sink) { | |
2305 | if (p->source->id == snd_soc_dapm_micbias || | |
2306 | p->source->id == snd_soc_dapm_mic || | |
2307 | p->source->id == snd_soc_dapm_line || | |
2308 | p->source->id == snd_soc_dapm_output) { | |
2309 | w->is_source = 0; | |
2310 | break; | |
2311 | } | |
2312 | } | |
2313 | break; | |
2314 | case snd_soc_dapm_output: | |
86d75003 LPC |
2315 | /* On a fully routed card a output is never a sink */ |
2316 | if (w->dapm->card->fully_routed) | |
2317 | break; | |
6dd98b0a LPC |
2318 | w->is_sink = 1; |
2319 | list_for_each_entry(p, &w->sinks, list_source) { | |
2320 | if (p->sink->id == snd_soc_dapm_spk || | |
2321 | p->sink->id == snd_soc_dapm_hp || | |
2322 | p->sink->id == snd_soc_dapm_line || | |
2323 | p->sink->id == snd_soc_dapm_input) { | |
2324 | w->is_sink = 0; | |
2325 | break; | |
2326 | } | |
2327 | } | |
2328 | break; | |
2329 | case snd_soc_dapm_line: | |
2330 | w->is_sink = !list_empty(&w->sources); | |
2331 | w->is_source = !list_empty(&w->sinks); | |
2332 | break; | |
2333 | default: | |
2334 | break; | |
2335 | } | |
2336 | } | |
2337 | ||
2553628e LPC |
2338 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2339 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2340 | const char *control, | |
2341 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2342 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2343 | { |
2344 | struct snd_soc_dapm_path *path; | |
2553628e | 2345 | int ret; |
2b97eabc | 2346 | |
e409dfbf LPC |
2347 | if (wsink->is_supply && !wsource->is_supply) { |
2348 | dev_err(dapm->dev, | |
2349 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2350 | wsource->name, wsink->name); | |
2351 | return -EINVAL; | |
2352 | } | |
2353 | ||
2354 | if (connected && !wsource->is_supply) { | |
2355 | dev_err(dapm->dev, | |
2356 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2357 | wsource->name, wsink->name); | |
2358 | return -EINVAL; | |
2359 | } | |
2360 | ||
2361 | if (wsource->is_supply && control) { | |
2362 | dev_err(dapm->dev, | |
2363 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2364 | wsource->name, control, wsink->name); | |
2365 | return -EINVAL; | |
2366 | } | |
2367 | ||
2b97eabc RP |
2368 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2369 | if (!path) | |
2370 | return -ENOMEM; | |
2371 | ||
2372 | path->source = wsource; | |
2373 | path->sink = wsink; | |
2553628e | 2374 | path->connected = connected; |
2b97eabc | 2375 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2376 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2377 | INIT_LIST_HEAD(&path->list_source); |
2378 | INIT_LIST_HEAD(&path->list_sink); | |
2379 | ||
c1862c8b LPC |
2380 | if (wsource->is_supply || wsink->is_supply) |
2381 | path->is_supply = 1; | |
2382 | ||
2b97eabc RP |
2383 | /* connect static paths */ |
2384 | if (control == NULL) { | |
2b97eabc | 2385 | path->connect = 1; |
5fe5b767 LPC |
2386 | } else { |
2387 | /* connect dynamic paths */ | |
2388 | switch (wsink->id) { | |
2389 | case snd_soc_dapm_mux: | |
2390 | ret = dapm_connect_mux(dapm, path, control); | |
2391 | if (ret != 0) | |
2392 | goto err; | |
2393 | break; | |
2394 | case snd_soc_dapm_switch: | |
2395 | case snd_soc_dapm_mixer: | |
2396 | case snd_soc_dapm_mixer_named_ctl: | |
2397 | ret = dapm_connect_mixer(dapm, path, control); | |
2398 | if (ret != 0) | |
2399 | goto err; | |
2400 | break; | |
2401 | default: | |
2402 | dev_err(dapm->dev, | |
2403 | "Control not supported for path %s -> [%s] -> %s\n", | |
2404 | wsource->name, control, wsink->name); | |
2405 | ret = -EINVAL; | |
2b97eabc | 2406 | goto err; |
5fe5b767 | 2407 | } |
2b97eabc | 2408 | } |
fabd0384 | 2409 | |
5fe5b767 LPC |
2410 | list_add(&path->list, &dapm->card->paths); |
2411 | list_add(&path->list_sink, &wsink->sources); | |
2412 | list_add(&path->list_source, &wsource->sinks); | |
2413 | ||
6dd98b0a LPC |
2414 | dapm_update_widget_flags(wsource); |
2415 | dapm_update_widget_flags(wsink); | |
2416 | ||
5fe5b767 LPC |
2417 | dapm_mark_dirty(wsource, "Route added"); |
2418 | dapm_mark_dirty(wsink, "Route added"); | |
2419 | ||
92a99ea4 LPC |
2420 | if (dapm->card->instantiated && path->connect) |
2421 | dapm_path_invalidate(path); | |
2422 | ||
2b97eabc | 2423 | return 0; |
2553628e LPC |
2424 | err: |
2425 | kfree(path); | |
2426 | return ret; | |
2427 | } | |
2b97eabc | 2428 | |
2553628e | 2429 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2430 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2431 | { |
2432 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2433 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2434 | const char *sink; | |
2435 | const char *source; | |
2436 | char prefixed_sink[80]; | |
2437 | char prefixed_source[80]; | |
94f99c87 | 2438 | const char *prefix; |
2553628e LPC |
2439 | int ret; |
2440 | ||
94f99c87 LPC |
2441 | prefix = soc_dapm_prefix(dapm); |
2442 | if (prefix) { | |
2553628e | 2443 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2444 | prefix, route->sink); |
2553628e LPC |
2445 | sink = prefixed_sink; |
2446 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2447 | prefix, route->source); |
2553628e LPC |
2448 | source = prefixed_source; |
2449 | } else { | |
2450 | sink = route->sink; | |
2451 | source = route->source; | |
2452 | } | |
2453 | ||
2454 | /* | |
2455 | * find src and dest widgets over all widgets but favor a widget from | |
2456 | * current DAPM context | |
2457 | */ | |
2458 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2459 | if (!wsink && !(strcmp(w->name, sink))) { | |
2460 | wtsink = w; | |
2461 | if (w->dapm == dapm) | |
2462 | wsink = w; | |
2463 | continue; | |
2464 | } | |
2465 | if (!wsource && !(strcmp(w->name, source))) { | |
2466 | wtsource = w; | |
2467 | if (w->dapm == dapm) | |
2468 | wsource = w; | |
2469 | } | |
2470 | } | |
2471 | /* use widget from another DAPM context if not found from this */ | |
2472 | if (!wsink) | |
2473 | wsink = wtsink; | |
2474 | if (!wsource) | |
2475 | wsource = wtsource; | |
2476 | ||
2477 | if (wsource == NULL) { | |
2478 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2479 | route->source); | |
2480 | return -ENODEV; | |
2481 | } | |
2482 | if (wsink == NULL) { | |
2483 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2484 | route->sink); | |
2485 | return -ENODEV; | |
2486 | } | |
2487 | ||
2488 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2489 | route->connected); | |
2490 | if (ret) | |
2491 | goto err; | |
2492 | ||
2493 | return 0; | |
2b97eabc | 2494 | err: |
30a6a1a4 | 2495 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2496 | source, route->control, sink); |
2b97eabc RP |
2497 | return ret; |
2498 | } | |
105f1c28 | 2499 | |
efcc3c61 MB |
2500 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2501 | const struct snd_soc_dapm_route *route) | |
2502 | { | |
6dd98b0a | 2503 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2504 | struct snd_soc_dapm_path *path, *p; |
2505 | const char *sink; | |
2506 | const char *source; | |
2507 | char prefixed_sink[80]; | |
2508 | char prefixed_source[80]; | |
94f99c87 | 2509 | const char *prefix; |
efcc3c61 MB |
2510 | |
2511 | if (route->control) { | |
2512 | dev_err(dapm->dev, | |
30a6a1a4 | 2513 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2514 | return -EINVAL; |
2515 | } | |
2516 | ||
94f99c87 LPC |
2517 | prefix = soc_dapm_prefix(dapm); |
2518 | if (prefix) { | |
efcc3c61 | 2519 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2520 | prefix, route->sink); |
efcc3c61 MB |
2521 | sink = prefixed_sink; |
2522 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2523 | prefix, route->source); |
efcc3c61 MB |
2524 | source = prefixed_source; |
2525 | } else { | |
2526 | sink = route->sink; | |
2527 | source = route->source; | |
2528 | } | |
2529 | ||
2530 | path = NULL; | |
2531 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2532 | if (strcmp(p->source->name, source) != 0) | |
2533 | continue; | |
2534 | if (strcmp(p->sink->name, sink) != 0) | |
2535 | continue; | |
2536 | path = p; | |
2537 | break; | |
2538 | } | |
2539 | ||
2540 | if (path) { | |
6dd98b0a LPC |
2541 | wsource = path->source; |
2542 | wsink = path->sink; | |
2543 | ||
2544 | dapm_mark_dirty(wsource, "Route removed"); | |
2545 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2546 | if (path->connect) |
2547 | dapm_path_invalidate(path); | |
efcc3c61 | 2548 | |
8872293f | 2549 | dapm_free_path(path); |
6dd98b0a LPC |
2550 | |
2551 | /* Update any path related flags */ | |
2552 | dapm_update_widget_flags(wsource); | |
2553 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2554 | } else { |
30a6a1a4 | 2555 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2556 | source, sink); |
2557 | } | |
2558 | ||
2559 | return 0; | |
2560 | } | |
2561 | ||
105f1c28 MB |
2562 | /** |
2563 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2564 | * @dapm: DAPM context |
105f1c28 MB |
2565 | * @route: audio routes |
2566 | * @num: number of routes | |
2567 | * | |
2568 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2569 | * the widget receiving the audio signal, whilst the source is the sender | |
2570 | * of the audio signal. | |
2571 | * | |
2572 | * Returns 0 for success else error. On error all resources can be freed | |
2573 | * with a call to snd_soc_card_free(). | |
2574 | */ | |
ce6120cc | 2575 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2576 | const struct snd_soc_dapm_route *route, int num) |
2577 | { | |
62d4a4b9 | 2578 | int i, r, ret = 0; |
105f1c28 | 2579 | |
a73fb2df | 2580 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2581 | for (i = 0; i < num; i++) { |
a4e9154c | 2582 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2583 | if (r < 0) { |
30a6a1a4 LG |
2584 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2585 | route->source, | |
2586 | route->control ? route->control : "direct", | |
2587 | route->sink); | |
62d4a4b9 | 2588 | ret = r; |
105f1c28 MB |
2589 | } |
2590 | route++; | |
2591 | } | |
a73fb2df | 2592 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2593 | |
60884c27 | 2594 | return ret; |
105f1c28 MB |
2595 | } |
2596 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2597 | ||
efcc3c61 MB |
2598 | /** |
2599 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2600 | * @dapm: DAPM context | |
2601 | * @route: audio routes | |
2602 | * @num: number of routes | |
2603 | * | |
2604 | * Removes routes from the DAPM context. | |
2605 | */ | |
2606 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2607 | const struct snd_soc_dapm_route *route, int num) | |
2608 | { | |
2609 | int i, ret = 0; | |
2610 | ||
2611 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2612 | for (i = 0; i < num; i++) { | |
2613 | snd_soc_dapm_del_route(dapm, route); | |
2614 | route++; | |
2615 | } | |
2616 | mutex_unlock(&dapm->card->dapm_mutex); | |
2617 | ||
2618 | return ret; | |
2619 | } | |
2620 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2621 | ||
bf3a9e13 MB |
2622 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2623 | const struct snd_soc_dapm_route *route) | |
2624 | { | |
2625 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2626 | route->source, | |
2627 | true); | |
2628 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2629 | route->sink, | |
2630 | true); | |
2631 | struct snd_soc_dapm_path *path; | |
2632 | int count = 0; | |
2633 | ||
2634 | if (!source) { | |
30a6a1a4 | 2635 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2636 | route->source); |
2637 | return -ENODEV; | |
2638 | } | |
2639 | ||
2640 | if (!sink) { | |
30a6a1a4 | 2641 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2642 | route->sink); |
2643 | return -ENODEV; | |
2644 | } | |
2645 | ||
2646 | if (route->control || route->connected) | |
30a6a1a4 | 2647 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2648 | route->source, route->sink); |
2649 | ||
2650 | list_for_each_entry(path, &source->sinks, list_source) { | |
2651 | if (path->sink == sink) { | |
2652 | path->weak = 1; | |
2653 | count++; | |
2654 | } | |
2655 | } | |
2656 | ||
2657 | if (count == 0) | |
30a6a1a4 | 2658 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2659 | route->source, route->sink); |
2660 | if (count > 1) | |
30a6a1a4 | 2661 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2662 | count, route->source, route->sink); |
2663 | ||
2664 | return 0; | |
2665 | } | |
2666 | ||
2667 | /** | |
2668 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2669 | * @dapm: DAPM context | |
2670 | * @route: audio routes | |
2671 | * @num: number of routes | |
2672 | * | |
2673 | * Mark existing routes matching those specified in the passed array | |
2674 | * as being weak, meaning that they are ignored for the purpose of | |
2675 | * power decisions. The main intended use case is for sidetone paths | |
2676 | * which couple audio between other independent paths if they are both | |
2677 | * active in order to make the combination work better at the user | |
2678 | * level but which aren't intended to be "used". | |
2679 | * | |
2680 | * Note that CODEC drivers should not use this as sidetone type paths | |
2681 | * can frequently also be used as bypass paths. | |
2682 | */ | |
2683 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2684 | const struct snd_soc_dapm_route *route, int num) | |
2685 | { | |
2686 | int i, err; | |
2687 | int ret = 0; | |
2688 | ||
a73fb2df | 2689 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2690 | for (i = 0; i < num; i++) { |
2691 | err = snd_soc_dapm_weak_route(dapm, route); | |
2692 | if (err) | |
2693 | ret = err; | |
2694 | route++; | |
2695 | } | |
a73fb2df | 2696 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2697 | |
2698 | return ret; | |
2699 | } | |
2700 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2701 | ||
2b97eabc RP |
2702 | /** |
2703 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2704 | * @dapm: DAPM context |
2b97eabc RP |
2705 | * |
2706 | * Checks the codec for any new dapm widgets and creates them if found. | |
2707 | * | |
2708 | * Returns 0 for success. | |
2709 | */ | |
824ef826 | 2710 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2711 | { |
2712 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2713 | unsigned int val; |
2b97eabc | 2714 | |
95dd5cd6 | 2715 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2716 | |
95dd5cd6 | 2717 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2718 | { |
2719 | if (w->new) | |
2720 | continue; | |
2721 | ||
fad59888 SW |
2722 | if (w->num_kcontrols) { |
2723 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2724 | sizeof(struct snd_kcontrol *), | |
2725 | GFP_KERNEL); | |
a73fb2df | 2726 | if (!w->kcontrols) { |
95dd5cd6 | 2727 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2728 | return -ENOMEM; |
a73fb2df | 2729 | } |
fad59888 SW |
2730 | } |
2731 | ||
2b97eabc RP |
2732 | switch(w->id) { |
2733 | case snd_soc_dapm_switch: | |
2734 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2735 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2736 | dapm_new_mixer(w); |
2b97eabc RP |
2737 | break; |
2738 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2739 | dapm_new_mux(w); |
2b97eabc | 2740 | break; |
2b97eabc | 2741 | case snd_soc_dapm_pga: |
d88429a6 | 2742 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2743 | dapm_new_pga(w); |
2b97eabc | 2744 | break; |
c6615082 NO |
2745 | case snd_soc_dapm_dai_link: |
2746 | dapm_new_dai_link(w); | |
2747 | break; | |
7ca3a18b | 2748 | default: |
2b97eabc RP |
2749 | break; |
2750 | } | |
b66a70d5 MB |
2751 | |
2752 | /* Read the initial power state from the device */ | |
2753 | if (w->reg >= 0) { | |
ce0fc93a | 2754 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2755 | val = val >> w->shift; |
de9ba98b LPC |
2756 | val &= w->mask; |
2757 | if (val == w->on_val) | |
b66a70d5 MB |
2758 | w->power = 1; |
2759 | } | |
2760 | ||
2b97eabc | 2761 | w->new = 1; |
d5d1e0be | 2762 | |
7508b12a | 2763 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2764 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2765 | } |
2766 | ||
95dd5cd6 LPC |
2767 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2768 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2769 | return 0; |
2770 | } | |
2771 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2772 | ||
2773 | /** | |
2774 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2775 | * @kcontrol: mixer control | |
ac11a2b3 | 2776 | * @ucontrol: control element information |
2b97eabc RP |
2777 | * |
2778 | * Callback to get the value of a dapm mixer control. | |
2779 | * | |
2780 | * Returns 0 for success. | |
2781 | */ | |
2782 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2783 | struct snd_ctl_elem_value *ucontrol) | |
2784 | { | |
ce0fc93a LPC |
2785 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2786 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2787 | struct soc_mixer_control *mc = |
2788 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2789 | int reg = mc->reg; |
815ecf8d | 2790 | unsigned int shift = mc->shift; |
4eaa9819 | 2791 | int max = mc->max; |
815ecf8d | 2792 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2793 | unsigned int invert = mc->invert; |
57295073 | 2794 | unsigned int val; |
ce0fc93a | 2795 | int ret = 0; |
da602ab8 BT |
2796 | |
2797 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2798 | dev_warn(dapm->dev, |
30a6a1a4 | 2799 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2800 | kcontrol->id.name); |
2b97eabc | 2801 | |
57295073 | 2802 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2803 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2804 | ret = soc_dapm_read(dapm, reg, &val); | |
2805 | val = (val >> shift) & mask; | |
2806 | } else { | |
57295073 | 2807 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2808 | } |
57295073 LPC |
2809 | mutex_unlock(&card->dapm_mutex); |
2810 | ||
da602ab8 | 2811 | if (invert) |
57295073 LPC |
2812 | ucontrol->value.integer.value[0] = max - val; |
2813 | else | |
2814 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2815 | |
ce0fc93a | 2816 | return ret; |
2b97eabc RP |
2817 | } |
2818 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2819 | ||
2820 | /** | |
2821 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2822 | * @kcontrol: mixer control | |
ac11a2b3 | 2823 | * @ucontrol: control element information |
2b97eabc RP |
2824 | * |
2825 | * Callback to set the value of a dapm mixer control. | |
2826 | * | |
2827 | * Returns 0 for success. | |
2828 | */ | |
2829 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2830 | struct snd_ctl_elem_value *ucontrol) | |
2831 | { | |
ce0fc93a LPC |
2832 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2833 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2834 | struct soc_mixer_control *mc = |
2835 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2836 | int reg = mc->reg; |
815ecf8d | 2837 | unsigned int shift = mc->shift; |
4eaa9819 | 2838 | int max = mc->max; |
815ecf8d JS |
2839 | unsigned int mask = (1 << fls(max)) - 1; |
2840 | unsigned int invert = mc->invert; | |
e9cf7049 | 2841 | unsigned int val; |
18626c7e | 2842 | int connect, change, reg_change = 0; |
97404f2e | 2843 | struct snd_soc_dapm_update update; |
52765976 | 2844 | int ret = 0; |
2b97eabc | 2845 | |
da602ab8 | 2846 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 2847 | dev_warn(dapm->dev, |
30a6a1a4 | 2848 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2849 | kcontrol->id.name); |
2850 | ||
2b97eabc | 2851 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2852 | connect = !!val; |
2b97eabc RP |
2853 | |
2854 | if (invert) | |
a7a4ac86 | 2855 | val = max - val; |
2b97eabc | 2856 | |
3cd04343 | 2857 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2858 | |
249ce138 | 2859 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2860 | |
18626c7e JN |
2861 | if (reg != SND_SOC_NOPM) { |
2862 | mask = mask << shift; | |
2863 | val = val << shift; | |
2864 | ||
ce0fc93a | 2865 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
2866 | } |
2867 | ||
2868 | if (change || reg_change) { | |
2869 | if (reg_change) { | |
2870 | update.kcontrol = kcontrol; | |
2871 | update.reg = reg; | |
2872 | update.mask = mask; | |
2873 | update.val = val; | |
2874 | card->update = &update; | |
249ce138 | 2875 | } |
18626c7e | 2876 | change |= reg_change; |
97404f2e | 2877 | |
52765976 | 2878 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2879 | |
564c6504 | 2880 | card->update = NULL; |
283375ce MB |
2881 | } |
2882 | ||
a73fb2df | 2883 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2884 | |
2885 | if (ret > 0) | |
2886 | soc_dpcm_runtime_update(card); | |
2887 | ||
56a67834 | 2888 | return change; |
2b97eabc RP |
2889 | } |
2890 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2891 | ||
2892 | /** | |
2893 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2894 | * @kcontrol: mixer control | |
ac11a2b3 | 2895 | * @ucontrol: control element information |
2b97eabc RP |
2896 | * |
2897 | * Callback to get the value of a dapm enumerated double mixer control. | |
2898 | * | |
2899 | * Returns 0 for success. | |
2900 | */ | |
2901 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2902 | struct snd_ctl_elem_value *ucontrol) | |
2903 | { | |
ce0fc93a | 2904 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2b97eabc | 2905 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2906 | unsigned int reg_val, val; |
52765976 | 2907 | |
69128316 GU |
2908 | if (e->reg != SND_SOC_NOPM) { |
2909 | int ret = soc_dapm_read(dapm, e->reg, ®_val); | |
2910 | if (ret) | |
2911 | return ret; | |
2912 | } else { | |
236aaa68 | 2913 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 2914 | } |
2e72f8e3 | 2915 | |
2e72f8e3 | 2916 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2917 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2918 | if (e->shift_l != e->shift_r) { |
2919 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2920 | val = snd_soc_enum_val_to_item(e, val); |
2921 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2922 | } |
2923 | ||
69128316 | 2924 | return 0; |
2e72f8e3 | 2925 | } |
2b97eabc | 2926 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2927 | |
2928 | /** | |
2b97eabc | 2929 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2930 | * @kcontrol: mixer control |
2931 | * @ucontrol: control element information | |
2932 | * | |
2b97eabc | 2933 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2934 | * |
2935 | * Returns 0 for success. | |
2936 | */ | |
2b97eabc | 2937 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2938 | struct snd_ctl_elem_value *ucontrol) |
2939 | { | |
ce0fc93a LPC |
2940 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2941 | struct snd_soc_card *card = dapm->card; | |
74155556 | 2942 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2943 | unsigned int *item = ucontrol->value.enumerated.item; |
2944 | unsigned int val, change; | |
46f5822f | 2945 | unsigned int mask; |
97404f2e | 2946 | struct snd_soc_dapm_update update; |
52765976 | 2947 | int ret = 0; |
2e72f8e3 | 2948 | |
3727b496 | 2949 | if (item[0] >= e->items) |
2e72f8e3 | 2950 | return -EINVAL; |
3727b496 LPC |
2951 | |
2952 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2953 | mask = e->mask << e->shift_l; |
2954 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2955 | if (item[1] > e->items) |
2e72f8e3 | 2956 | return -EINVAL; |
3727b496 | 2957 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2958 | mask |= e->mask << e->shift_r; |
2959 | } | |
2960 | ||
3cd04343 | 2961 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2962 | |
236aaa68 | 2963 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2964 | change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 LPC |
2965 | else |
2966 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2967 | ||
fafd2176 | 2968 | if (change) { |
236aaa68 LPC |
2969 | if (e->reg != SND_SOC_NOPM) { |
2970 | update.kcontrol = kcontrol; | |
2971 | update.reg = e->reg; | |
2972 | update.mask = mask; | |
2973 | update.val = val; | |
2974 | card->update = &update; | |
2975 | } | |
1642e3d4 | 2976 | |
3727b496 | 2977 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 2978 | |
564c6504 | 2979 | card->update = NULL; |
fafd2176 | 2980 | } |
2e72f8e3 | 2981 | |
a73fb2df | 2982 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2983 | |
2984 | if (ret > 0) | |
2985 | soc_dpcm_runtime_update(card); | |
2986 | ||
97404f2e | 2987 | return change; |
2e72f8e3 | 2988 | } |
2b97eabc | 2989 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 2990 | |
8b37dbd2 MB |
2991 | /** |
2992 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2993 | * | |
2994 | * @kcontrol: mixer control | |
2995 | * @uinfo: control element information | |
2996 | * | |
2997 | * Callback to provide information about a pin switch control. | |
2998 | */ | |
2999 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3000 | struct snd_ctl_elem_info *uinfo) | |
3001 | { | |
3002 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3003 | uinfo->count = 1; | |
3004 | uinfo->value.integer.min = 0; | |
3005 | uinfo->value.integer.max = 1; | |
3006 | ||
3007 | return 0; | |
3008 | } | |
3009 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3010 | ||
3011 | /** | |
3012 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3013 | * | |
3014 | * @kcontrol: mixer control | |
3015 | * @ucontrol: Value | |
3016 | */ | |
3017 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3018 | struct snd_ctl_elem_value *ucontrol) | |
3019 | { | |
48a8c394 | 3020 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3021 | const char *pin = (const char *)kcontrol->private_value; |
3022 | ||
3cd04343 | 3023 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3024 | |
3025 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3026 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3027 | |
a73fb2df | 3028 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3029 | |
3030 | return 0; | |
3031 | } | |
3032 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3033 | ||
3034 | /** | |
3035 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3036 | * | |
3037 | * @kcontrol: mixer control | |
3038 | * @ucontrol: Value | |
3039 | */ | |
3040 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3041 | struct snd_ctl_elem_value *ucontrol) | |
3042 | { | |
48a8c394 | 3043 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3044 | const char *pin = (const char *)kcontrol->private_value; |
3045 | ||
8b37dbd2 | 3046 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3047 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3048 | else |
48a8c394 | 3049 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3050 | |
a73fb2df | 3051 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3052 | return 0; |
3053 | } | |
3054 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3055 | ||
5ba06fc9 MB |
3056 | static struct snd_soc_dapm_widget * |
3057 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3058 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3059 | { |
3060 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3061 | const char *prefix; |
62ea874a | 3062 | int ret; |
2b97eabc RP |
3063 | |
3064 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3065 | return NULL; |
2b97eabc | 3066 | |
62ea874a MB |
3067 | switch (w->id) { |
3068 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3069 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3070 | if (IS_ERR(w->regulator)) { | |
3071 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3072 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3073 | w->name, ret); |
5ba06fc9 | 3074 | return NULL; |
62ea874a | 3075 | } |
8784c77a | 3076 | |
de9ba98b | 3077 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3078 | ret = regulator_allow_bypass(w->regulator, true); |
3079 | if (ret != 0) | |
3080 | dev_warn(w->dapm->dev, | |
30686c35 | 3081 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3082 | w->name, ret); |
3083 | } | |
62ea874a | 3084 | break; |
d7e7eb91 | 3085 | case snd_soc_dapm_clock_supply: |
165961ef | 3086 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3087 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3088 | if (IS_ERR(w->clk)) { |
3089 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3090 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3091 | w->name, ret); |
3092 | return NULL; | |
3093 | } | |
ec02995a MB |
3094 | #else |
3095 | return NULL; | |
3096 | #endif | |
d7e7eb91 | 3097 | break; |
62ea874a MB |
3098 | default: |
3099 | break; | |
3100 | } | |
2b97eabc | 3101 | |
94f99c87 LPC |
3102 | prefix = soc_dapm_prefix(dapm); |
3103 | if (prefix) | |
3104 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); | |
2b581074 LPC |
3105 | else |
3106 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3107 | ||
ead9b919 JN |
3108 | if (w->name == NULL) { |
3109 | kfree(w); | |
5ba06fc9 | 3110 | return NULL; |
ead9b919 | 3111 | } |
ead9b919 | 3112 | |
7ca3a18b | 3113 | switch (w->id) { |
6dd98b0a | 3114 | case snd_soc_dapm_mic: |
6dd98b0a | 3115 | w->is_source = 1; |
7ca3a18b MB |
3116 | w->power_check = dapm_generic_check_power; |
3117 | break; | |
86d75003 LPC |
3118 | case snd_soc_dapm_input: |
3119 | if (!dapm->card->fully_routed) | |
3120 | w->is_source = 1; | |
3121 | w->power_check = dapm_generic_check_power; | |
3122 | break; | |
6dd98b0a LPC |
3123 | case snd_soc_dapm_spk: |
3124 | case snd_soc_dapm_hp: | |
6dd98b0a | 3125 | w->is_sink = 1; |
7ca3a18b MB |
3126 | w->power_check = dapm_generic_check_power; |
3127 | break; | |
86d75003 LPC |
3128 | case snd_soc_dapm_output: |
3129 | if (!dapm->card->fully_routed) | |
3130 | w->is_sink = 1; | |
3131 | w->power_check = dapm_generic_check_power; | |
3132 | break; | |
6dd98b0a LPC |
3133 | case snd_soc_dapm_vmid: |
3134 | case snd_soc_dapm_siggen: | |
3135 | w->is_source = 1; | |
3136 | w->power_check = dapm_always_on_check_power; | |
3137 | break; | |
3138 | case snd_soc_dapm_mux: | |
3139 | case snd_soc_dapm_switch: | |
3140 | case snd_soc_dapm_mixer: | |
3141 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3142 | case snd_soc_dapm_adc: |
3143 | case snd_soc_dapm_aif_out: | |
3144 | case snd_soc_dapm_dac: | |
3145 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3146 | case snd_soc_dapm_pga: |
3147 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3148 | case snd_soc_dapm_micbias: |
7ca3a18b | 3149 | case snd_soc_dapm_line: |
c74184ed | 3150 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3151 | case snd_soc_dapm_dai_out: |
3152 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3153 | w->power_check = dapm_generic_check_power; |
3154 | break; | |
3155 | case snd_soc_dapm_supply: | |
62ea874a | 3156 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3157 | case snd_soc_dapm_clock_supply: |
57295073 | 3158 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3159 | w->is_supply = 1; |
7ca3a18b MB |
3160 | w->power_check = dapm_supply_check_power; |
3161 | break; | |
3162 | default: | |
3163 | w->power_check = dapm_always_on_check_power; | |
3164 | break; | |
3165 | } | |
3166 | ||
ce6120cc | 3167 | w->dapm = dapm; |
2b97eabc RP |
3168 | INIT_LIST_HEAD(&w->sources); |
3169 | INIT_LIST_HEAD(&w->sinks); | |
3170 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3171 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3172 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc | 3173 | |
92a99ea4 LPC |
3174 | w->inputs = -1; |
3175 | w->outputs = -1; | |
3176 | ||
2b97eabc RP |
3177 | /* machine layer set ups unconnected pins and insertions */ |
3178 | w->connected = 1; | |
5ba06fc9 | 3179 | return w; |
2b97eabc | 3180 | } |
2b97eabc | 3181 | |
4ba1327a MB |
3182 | /** |
3183 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3184 | * @dapm: DAPM context |
4ba1327a MB |
3185 | * @widget: widget array |
3186 | * @num: number of widgets | |
3187 | * | |
3188 | * Creates new DAPM controls based upon the templates. | |
3189 | * | |
3190 | * Returns 0 for success else error. | |
3191 | */ | |
ce6120cc | 3192 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3193 | const struct snd_soc_dapm_widget *widget, |
3194 | int num) | |
3195 | { | |
5ba06fc9 MB |
3196 | struct snd_soc_dapm_widget *w; |
3197 | int i; | |
60884c27 | 3198 | int ret = 0; |
4ba1327a | 3199 | |
a73fb2df | 3200 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3201 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3202 | w = snd_soc_dapm_new_control(dapm, widget); |
3203 | if (!w) { | |
f7d41ae8 | 3204 | dev_err(dapm->dev, |
5ba06fc9 MB |
3205 | "ASoC: Failed to create DAPM control %s\n", |
3206 | widget->name); | |
60884c27 DC |
3207 | ret = -ENOMEM; |
3208 | break; | |
b8b33cb5 | 3209 | } |
4ba1327a MB |
3210 | widget++; |
3211 | } | |
a73fb2df | 3212 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3213 | return ret; |
4ba1327a MB |
3214 | } |
3215 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3216 | ||
c74184ed MB |
3217 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3218 | struct snd_kcontrol *kcontrol, int event) | |
3219 | { | |
3220 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3221 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3222 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3223 | struct snd_pcm_substream substream; |
9747cec2 | 3224 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3225 | u64 fmt; |
3226 | int ret; | |
3227 | ||
bf4edea8 TI |
3228 | if (WARN_ON(!config) || |
3229 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3230 | return -EINVAL; | |
c74184ed MB |
3231 | |
3232 | /* We only support a single source and sink, pick the first */ | |
3233 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3234 | list_sink); | |
3235 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3236 | list_source); | |
3237 | ||
bf4edea8 TI |
3238 | if (WARN_ON(!source_p || !sink_p) || |
3239 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3240 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3241 | return -EINVAL; | |
c74184ed MB |
3242 | |
3243 | source = source_p->source->priv; | |
3244 | sink = sink_p->sink->priv; | |
3245 | ||
3246 | /* Be a little careful as we don't want to overflow the mask array */ | |
3247 | if (config->formats) { | |
3248 | fmt = ffs(config->formats) - 1; | |
3249 | } else { | |
30a6a1a4 | 3250 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3251 | config->formats); |
3252 | fmt = 0; | |
3253 | } | |
3254 | ||
3255 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3256 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3257 | if (!params) { | |
3258 | ret = -ENOMEM; | |
3259 | goto out; | |
3260 | } | |
3261 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3262 | |
9747cec2 | 3263 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3264 | config->rate_min; |
9747cec2 | 3265 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3266 | config->rate_max; |
3267 | ||
9747cec2 | 3268 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3269 | = config->channels_min; |
9747cec2 | 3270 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3271 | = config->channels_max; |
3272 | ||
3273 | memset(&substream, 0, sizeof(substream)); | |
3274 | ||
3275 | switch (event) { | |
3276 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3277 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3278 | ret = soc_dai_hw_params(&substream, params, source); | |
3279 | if (ret < 0) | |
3280 | goto out; | |
c74184ed | 3281 | |
93e6958a BC |
3282 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3283 | ret = soc_dai_hw_params(&substream, params, sink); | |
3284 | if (ret < 0) | |
3285 | goto out; | |
c74184ed MB |
3286 | break; |
3287 | ||
3288 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3289 | ret = snd_soc_dai_digital_mute(sink, 0, |
3290 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3291 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3292 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3293 | ret = 0; |
c74184ed MB |
3294 | break; |
3295 | ||
3296 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3297 | ret = snd_soc_dai_digital_mute(sink, 1, |
3298 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3299 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3300 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3301 | ret = 0; |
c74184ed MB |
3302 | break; |
3303 | ||
3304 | default: | |
a6ed0608 | 3305 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3306 | return -EINVAL; |
3307 | } | |
3308 | ||
9747cec2 MB |
3309 | out: |
3310 | kfree(params); | |
3311 | return ret; | |
c74184ed MB |
3312 | } |
3313 | ||
c6615082 NO |
3314 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3315 | struct snd_ctl_elem_value *ucontrol) | |
3316 | { | |
3317 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3318 | ||
3319 | ucontrol->value.integer.value[0] = w->params_select; | |
3320 | ||
3321 | return 0; | |
3322 | } | |
3323 | ||
3324 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3325 | struct snd_ctl_elem_value *ucontrol) | |
3326 | { | |
3327 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3328 | ||
3329 | /* Can't change the config when widget is already powered */ | |
3330 | if (w->power) | |
3331 | return -EBUSY; | |
3332 | ||
3333 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3334 | return 0; | |
3335 | ||
3336 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3337 | return -EINVAL; | |
3338 | ||
3339 | w->params_select = ucontrol->value.integer.value[0]; | |
3340 | ||
3341 | return 0; | |
3342 | } | |
3343 | ||
c74184ed MB |
3344 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3345 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3346 | unsigned int num_params, |
c74184ed MB |
3347 | struct snd_soc_dapm_widget *source, |
3348 | struct snd_soc_dapm_widget *sink) | |
3349 | { | |
c74184ed MB |
3350 | struct snd_soc_dapm_widget template; |
3351 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3352 | char *link_name; |
c6615082 NO |
3353 | int ret, count; |
3354 | unsigned long private_value; | |
3355 | const char **w_param_text; | |
3356 | struct soc_enum w_param_enum[] = { | |
3357 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3358 | }; | |
3359 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3360 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3361 | snd_soc_dapm_dai_link_get, | |
3362 | snd_soc_dapm_dai_link_put), | |
3363 | }; | |
3364 | const struct snd_soc_pcm_stream *config = params; | |
3365 | ||
3366 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3367 | sizeof(char *), GFP_KERNEL); | |
3368 | if (!w_param_text) | |
c74184ed | 3369 | return -ENOMEM; |
c74184ed | 3370 | |
46172b6c CK |
3371 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3372 | source->name, sink->name); | |
c6615082 NO |
3373 | if (!link_name) { |
3374 | ret = -ENOMEM; | |
3375 | goto outfree_w_param; | |
3376 | } | |
c74184ed | 3377 | |
c6615082 NO |
3378 | for (count = 0 ; count < num_params; count++) { |
3379 | if (!config->stream_name) { | |
3380 | dev_warn(card->dapm.dev, | |
3381 | "ASoC: anonymous config %d for dai link %s\n", | |
3382 | count, link_name); | |
c6615082 | 3383 | w_param_text[count] = |
46172b6c CK |
3384 | devm_kasprintf(card->dev, GFP_KERNEL, |
3385 | "Anonymous Configuration %d", | |
3386 | count); | |
c6615082 NO |
3387 | if (!w_param_text[count]) { |
3388 | ret = -ENOMEM; | |
3389 | goto outfree_link_name; | |
3390 | } | |
c6615082 NO |
3391 | } else { |
3392 | w_param_text[count] = devm_kmemdup(card->dev, | |
3393 | config->stream_name, | |
3394 | strlen(config->stream_name) + 1, | |
3395 | GFP_KERNEL); | |
3396 | if (!w_param_text[count]) { | |
3397 | ret = -ENOMEM; | |
3398 | goto outfree_link_name; | |
3399 | } | |
3400 | } | |
3401 | config++; | |
3402 | } | |
3403 | w_param_enum[0].items = num_params; | |
3404 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3405 | |
3406 | memset(&template, 0, sizeof(template)); | |
3407 | template.reg = SND_SOC_NOPM; | |
3408 | template.id = snd_soc_dapm_dai_link; | |
3409 | template.name = link_name; | |
3410 | template.event = snd_soc_dai_link_event; | |
3411 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3412 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3413 | template.num_kcontrols = 1; |
3414 | /* duplicate w_param_enum on heap so that memory persists */ | |
3415 | private_value = | |
3416 | (unsigned long) devm_kmemdup(card->dev, | |
3417 | (void *)(kcontrol_dai_link[0].private_value), | |
3418 | sizeof(struct soc_enum), GFP_KERNEL); | |
3419 | if (!private_value) { | |
3420 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3421 | link_name); | |
3422 | ret = -ENOMEM; | |
3423 | goto outfree_link_name; | |
3424 | } | |
3425 | kcontrol_dai_link[0].private_value = private_value; | |
3426 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3427 | template.kcontrol_news = | |
3428 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3429 | sizeof(struct snd_kcontrol_new), | |
3430 | GFP_KERNEL); | |
3431 | if (!template.kcontrol_news) { | |
3432 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3433 | link_name); | |
3434 | ret = -ENOMEM; | |
3435 | goto outfree_private_value; | |
3436 | } | |
c74184ed | 3437 | |
30a6a1a4 | 3438 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3439 | |
3440 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3441 | if (!w) { | |
30a6a1a4 | 3442 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3443 | link_name); |
c6615082 NO |
3444 | ret = -ENOMEM; |
3445 | goto outfree_kcontrol_news; | |
c74184ed MB |
3446 | } |
3447 | ||
3448 | w->params = params; | |
c6615082 | 3449 | w->num_params = num_params; |
c74184ed | 3450 | |
fe83897f LPC |
3451 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3452 | if (ret) | |
c6615082 | 3453 | goto outfree_w; |
fe83897f | 3454 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3455 | |
3456 | outfree_w: | |
3457 | devm_kfree(card->dev, w); | |
3458 | outfree_kcontrol_news: | |
3459 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3460 | outfree_private_value: | |
3461 | devm_kfree(card->dev, (void *)private_value); | |
3462 | outfree_link_name: | |
3463 | devm_kfree(card->dev, link_name); | |
3464 | outfree_w_param: | |
3465 | for (count = 0 ; count < num_params; count++) | |
3466 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3467 | devm_kfree(card->dev, w_param_text); | |
3468 | ||
3469 | return ret; | |
c74184ed MB |
3470 | } |
3471 | ||
888df395 MB |
3472 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3473 | struct snd_soc_dai *dai) | |
2b97eabc | 3474 | { |
888df395 | 3475 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3476 | struct snd_soc_dapm_widget *w; |
3477 | ||
888df395 MB |
3478 | WARN_ON(dapm->dev != dai->dev); |
3479 | ||
3480 | memset(&template, 0, sizeof(template)); | |
3481 | template.reg = SND_SOC_NOPM; | |
3482 | ||
3483 | if (dai->driver->playback.stream_name) { | |
4616274d | 3484 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3485 | template.name = dai->driver->playback.stream_name; |
3486 | template.sname = dai->driver->playback.stream_name; | |
3487 | ||
30a6a1a4 | 3488 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3489 | template.name); |
3490 | ||
3491 | w = snd_soc_dapm_new_control(dapm, &template); | |
3492 | if (!w) { | |
30a6a1a4 | 3493 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3494 | dai->driver->playback.stream_name); |
298402a3 | 3495 | return -ENOMEM; |
888df395 MB |
3496 | } |
3497 | ||
3498 | w->priv = dai; | |
3499 | dai->playback_widget = w; | |
3500 | } | |
3501 | ||
3502 | if (dai->driver->capture.stream_name) { | |
4616274d | 3503 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3504 | template.name = dai->driver->capture.stream_name; |
3505 | template.sname = dai->driver->capture.stream_name; | |
3506 | ||
30a6a1a4 | 3507 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3508 | template.name); |
3509 | ||
3510 | w = snd_soc_dapm_new_control(dapm, &template); | |
3511 | if (!w) { | |
30a6a1a4 | 3512 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3513 | dai->driver->capture.stream_name); |
298402a3 | 3514 | return -ENOMEM; |
888df395 MB |
3515 | } |
3516 | ||
3517 | w->priv = dai; | |
3518 | dai->capture_widget = w; | |
3519 | } | |
3520 | ||
3521 | return 0; | |
3522 | } | |
3523 | ||
3524 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3525 | { | |
3526 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3527 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3528 | struct snd_soc_dai *dai; |
888df395 MB |
3529 | |
3530 | /* For each DAI widget... */ | |
3531 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3532 | switch (dai_w->id) { |
3533 | case snd_soc_dapm_dai_in: | |
3534 | case snd_soc_dapm_dai_out: | |
3535 | break; | |
3536 | default: | |
2b97eabc | 3537 | continue; |
4616274d | 3538 | } |
888df395 MB |
3539 | |
3540 | dai = dai_w->priv; | |
3541 | ||
3542 | /* ...find all widgets with the same stream and link them */ | |
3543 | list_for_each_entry(w, &card->widgets, list) { | |
3544 | if (w->dapm != dai_w->dapm) | |
3545 | continue; | |
3546 | ||
4616274d MB |
3547 | switch (w->id) { |
3548 | case snd_soc_dapm_dai_in: | |
3549 | case snd_soc_dapm_dai_out: | |
888df395 | 3550 | continue; |
4616274d MB |
3551 | default: |
3552 | break; | |
3553 | } | |
888df395 | 3554 | |
19c2c5f5 | 3555 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3556 | continue; |
3557 | ||
0f9bd7b1 LPC |
3558 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3559 | src = dai_w; | |
3560 | sink = w; | |
3561 | } else { | |
3562 | src = w; | |
3563 | sink = dai_w; | |
2b97eabc | 3564 | } |
0f9bd7b1 LPC |
3565 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3566 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3567 | } |
3568 | } | |
2b97eabc | 3569 | |
888df395 MB |
3570 | return 0; |
3571 | } | |
64a648c2 | 3572 | |
44ba2641 BC |
3573 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3574 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3575 | { |
44ba2641 | 3576 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3577 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3578 | int i; |
3579 | ||
44ba2641 BC |
3580 | for (i = 0; i < rtd->num_codecs; i++) { |
3581 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3582 | |
3583 | /* there is no point in connecting BE DAI links with dummies */ | |
3584 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3585 | snd_soc_dai_is_dummy(cpu_dai)) | |
3586 | continue; | |
3587 | ||
3588 | /* connect BE DAI playback if widgets are valid */ | |
3589 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3590 | source = cpu_dai->playback_widget; |
3591 | sink = codec_dai->playback_widget; | |
b893ea5f | 3592 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3593 | cpu_dai->component->name, source->name, |
3594 | codec_dai->component->name, sink->name); | |
b893ea5f | 3595 | |
9887c20b LPC |
3596 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3597 | NULL, NULL); | |
b893ea5f LG |
3598 | } |
3599 | ||
3600 | /* connect BE DAI capture if widgets are valid */ | |
3601 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3602 | source = codec_dai->capture_widget; |
3603 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3604 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3605 | codec_dai->component->name, source->name, |
3606 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3607 | |
9887c20b LPC |
3608 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3609 | NULL, NULL); | |
b893ea5f | 3610 | } |
b893ea5f LG |
3611 | } |
3612 | } | |
3613 | ||
c471fdd1 | 3614 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3615 | int event) |
2b97eabc | 3616 | { |
c471fdd1 | 3617 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3618 | |
c471fdd1 LPC |
3619 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3620 | w = dai->playback_widget; | |
3621 | else | |
3622 | w = dai->capture_widget; | |
fe360685 | 3623 | |
c471fdd1 LPC |
3624 | if (w) { |
3625 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3626 | |
3627 | switch (event) { | |
3628 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3629 | w->active = 1; |
d9b0951b LG |
3630 | break; |
3631 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3632 | w->active = 0; |
d9b0951b LG |
3633 | break; |
3634 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3635 | case SND_SOC_DAPM_STREAM_RESUME: | |
3636 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3637 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3638 | break; | |
3639 | } | |
6dd98b0a | 3640 | |
92a99ea4 | 3641 | if (w->id == snd_soc_dapm_dai_in) { |
6dd98b0a | 3642 | w->is_source = w->active; |
92a99ea4 LPC |
3643 | dapm_widget_invalidate_input_paths(w); |
3644 | } else { | |
6dd98b0a | 3645 | w->is_sink = w->active; |
92a99ea4 LPC |
3646 | dapm_widget_invalidate_output_paths(w); |
3647 | } | |
d9b0951b | 3648 | } |
c471fdd1 | 3649 | } |
d9b0951b | 3650 | |
44ba2641 BC |
3651 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3652 | { | |
3653 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3654 | int i; | |
3655 | ||
3656 | /* for each BE DAI link... */ | |
3657 | for (i = 0; i < card->num_rtd; i++) { | |
3658 | rtd = &card->rtd[i]; | |
3659 | ||
3660 | /* | |
3661 | * dynamic FE links have no fixed DAI mapping. | |
3662 | * CODEC<->CODEC links have no direct connection. | |
3663 | */ | |
3664 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3665 | continue; | |
3666 | ||
3667 | dapm_connect_dai_link_widgets(card, rtd); | |
3668 | } | |
3669 | } | |
3670 | ||
c471fdd1 LPC |
3671 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3672 | int event) | |
3673 | { | |
44ba2641 BC |
3674 | int i; |
3675 | ||
c471fdd1 | 3676 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3677 | for (i = 0; i < rtd->num_codecs; i++) |
3678 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3679 | |
95dd5cd6 | 3680 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3681 | } |
3682 | ||
3683 | /** | |
3684 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3685 | * @rtd: PCM runtime data | |
3686 | * @stream: stream name | |
3687 | * @event: stream event | |
3688 | * | |
3689 | * Sends a stream event to the dapm core. The core then makes any | |
3690 | * necessary widget power changes. | |
3691 | * | |
3692 | * Returns 0 for success else error. | |
3693 | */ | |
d9b0951b LG |
3694 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3695 | int event) | |
ce6120cc | 3696 | { |
a73fb2df | 3697 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3698 | |
3cd04343 | 3699 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3700 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3701 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3702 | } |
2b97eabc | 3703 | |
11391100 CK |
3704 | /** |
3705 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3706 | * @dapm: DAPM context | |
3707 | * @pin: pin name | |
3708 | * | |
3709 | * Enables input/output pin and its parents or children widgets iff there is | |
3710 | * a valid audio route and active audio stream. | |
3711 | * | |
3712 | * Requires external locking. | |
3713 | * | |
3714 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3715 | * do any widget power switching. | |
3716 | */ | |
3717 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3718 | const char *pin) | |
3719 | { | |
3720 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3721 | } | |
3722 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3723 | ||
2b97eabc | 3724 | /** |
a5302181 | 3725 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3726 | * @dapm: DAPM context |
a5302181 | 3727 | * @pin: pin name |
2b97eabc | 3728 | * |
74b8f955 | 3729 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3730 | * a valid audio route and active audio stream. |
11391100 | 3731 | * |
a5302181 LG |
3732 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3733 | * do any widget power switching. | |
2b97eabc | 3734 | */ |
ce6120cc | 3735 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3736 | { |
11391100 CK |
3737 | int ret; |
3738 | ||
3739 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3740 | ||
3741 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3742 | ||
3743 | mutex_unlock(&dapm->card->dapm_mutex); | |
3744 | ||
3745 | return ret; | |
a5302181 LG |
3746 | } |
3747 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3748 | |
da34183e | 3749 | /** |
11391100 | 3750 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3751 | * @dapm: DAPM context |
da34183e MB |
3752 | * @pin: pin name |
3753 | * | |
3754 | * Enables input/output pin regardless of any other state. This is | |
3755 | * intended for use with microphone bias supplies used in microphone | |
3756 | * jack detection. | |
3757 | * | |
11391100 CK |
3758 | * Requires external locking. |
3759 | * | |
da34183e MB |
3760 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3761 | * do any widget power switching. | |
3762 | */ | |
11391100 CK |
3763 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3764 | const char *pin) | |
da34183e | 3765 | { |
91a5fca4 | 3766 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3767 | |
91a5fca4 | 3768 | if (!w) { |
30a6a1a4 | 3769 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3770 | return -EINVAL; |
0d86733c MB |
3771 | } |
3772 | ||
30a6a1a4 | 3773 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
3774 | if (!w->connected) { |
3775 | /* | |
3776 | * w->force does not affect the number of input or output paths, | |
3777 | * so we only have to recheck if w->connected is changed | |
3778 | */ | |
3779 | dapm_widget_invalidate_input_paths(w); | |
3780 | dapm_widget_invalidate_output_paths(w); | |
3781 | w->connected = 1; | |
3782 | } | |
91a5fca4 | 3783 | w->force = 1; |
75c1f891 | 3784 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3785 | |
91a5fca4 | 3786 | return 0; |
da34183e | 3787 | } |
11391100 CK |
3788 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3789 | ||
3790 | /** | |
3791 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3792 | * @dapm: DAPM context | |
3793 | * @pin: pin name | |
3794 | * | |
3795 | * Enables input/output pin regardless of any other state. This is | |
3796 | * intended for use with microphone bias supplies used in microphone | |
3797 | * jack detection. | |
3798 | * | |
3799 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3800 | * do any widget power switching. | |
3801 | */ | |
3802 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3803 | const char *pin) | |
3804 | { | |
3805 | int ret; | |
3806 | ||
3807 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3808 | ||
3809 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3810 | ||
3811 | mutex_unlock(&dapm->card->dapm_mutex); | |
3812 | ||
3813 | return ret; | |
3814 | } | |
da34183e MB |
3815 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3816 | ||
11391100 CK |
3817 | /** |
3818 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3819 | * @dapm: DAPM context | |
3820 | * @pin: pin name | |
3821 | * | |
3822 | * Disables input/output pin and its parents or children widgets. | |
3823 | * | |
3824 | * Requires external locking. | |
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_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3830 | const char *pin) | |
3831 | { | |
3832 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3833 | } | |
3834 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3835 | ||
a5302181 LG |
3836 | /** |
3837 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3838 | * @dapm: DAPM context |
a5302181 LG |
3839 | * @pin: pin name |
3840 | * | |
74b8f955 | 3841 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3842 | * |
a5302181 LG |
3843 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3844 | * do any widget power switching. | |
3845 | */ | |
ce6120cc LG |
3846 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3847 | const char *pin) | |
a5302181 | 3848 | { |
11391100 CK |
3849 | int ret; |
3850 | ||
3851 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3852 | ||
3853 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3854 | ||
3855 | mutex_unlock(&dapm->card->dapm_mutex); | |
3856 | ||
3857 | return ret; | |
2b97eabc | 3858 | } |
a5302181 | 3859 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3860 | |
11391100 CK |
3861 | /** |
3862 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3863 | * @dapm: DAPM context | |
3864 | * @pin: pin name | |
3865 | * | |
3866 | * Marks the specified pin as being not connected, disabling it along | |
3867 | * any parent or child widgets. At present this is identical to | |
3868 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3869 | * additional things such as disabling controls which only affect | |
3870 | * paths through the pin. | |
3871 | * | |
3872 | * Requires external locking. | |
3873 | * | |
3874 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3875 | * do any widget power switching. | |
3876 | */ | |
3877 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3878 | const char *pin) | |
3879 | { | |
3880 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3881 | } | |
3882 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3883 | ||
5817b52a MB |
3884 | /** |
3885 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3886 | * @dapm: DAPM context |
5817b52a MB |
3887 | * @pin: pin name |
3888 | * | |
3889 | * Marks the specified pin as being not connected, disabling it along | |
3890 | * any parent or child widgets. At present this is identical to | |
3891 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3892 | * additional things such as disabling controls which only affect | |
3893 | * paths through the pin. | |
3894 | * | |
3895 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3896 | * do any widget power switching. | |
3897 | */ | |
ce6120cc | 3898 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3899 | { |
11391100 CK |
3900 | int ret; |
3901 | ||
3902 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3903 | ||
3904 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3905 | ||
3906 | mutex_unlock(&dapm->card->dapm_mutex); | |
3907 | ||
3908 | return ret; | |
5817b52a MB |
3909 | } |
3910 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3911 | ||
eeec12bf | 3912 | /** |
a5302181 | 3913 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3914 | * @dapm: DAPM context |
a5302181 | 3915 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3916 | * |
a5302181 | 3917 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3918 | * |
a5302181 | 3919 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3920 | */ |
ce6120cc LG |
3921 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3922 | const char *pin) | |
eeec12bf | 3923 | { |
91a5fca4 | 3924 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3925 | |
91a5fca4 LPC |
3926 | if (w) |
3927 | return w->connected; | |
a68b38ad | 3928 | |
eeec12bf GG |
3929 | return 0; |
3930 | } | |
a5302181 | 3931 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3932 | |
1547aba9 MB |
3933 | /** |
3934 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3935 | * @dapm: DAPM context |
1547aba9 MB |
3936 | * @pin: audio signal pin endpoint (or start point) |
3937 | * | |
3938 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3939 | * system is disabled a path between two endpoints flagged as ignoring | |
3940 | * suspend will not be disabled. The path must already be enabled via | |
3941 | * normal means at suspend time, it will not be turned on if it was not | |
3942 | * already enabled. | |
3943 | */ | |
ce6120cc LG |
3944 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3945 | const char *pin) | |
1547aba9 | 3946 | { |
91a5fca4 | 3947 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3948 | |
91a5fca4 | 3949 | if (!w) { |
30a6a1a4 | 3950 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3951 | return -EINVAL; |
1547aba9 MB |
3952 | } |
3953 | ||
91a5fca4 LPC |
3954 | w->ignore_suspend = 1; |
3955 | ||
3956 | return 0; | |
1547aba9 MB |
3957 | } |
3958 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3959 | ||
2b97eabc RP |
3960 | /** |
3961 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3962 | * @dapm: DAPM context |
2b97eabc RP |
3963 | * |
3964 | * Free all dapm widgets and resources. | |
3965 | */ | |
ce6120cc | 3966 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3967 | { |
6c45e126 | 3968 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3969 | dapm_free_widgets(dapm); |
7be31be8 | 3970 | list_del(&dapm->list); |
2b97eabc RP |
3971 | } |
3972 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3973 | ||
57996358 | 3974 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 3975 | { |
01005a72 | 3976 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3977 | struct snd_soc_dapm_widget *w; |
3978 | LIST_HEAD(down_list); | |
3979 | int powerdown = 0; | |
3980 | ||
01005a72 LG |
3981 | mutex_lock(&card->dapm_mutex); |
3982 | ||
97c866de JN |
3983 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3984 | if (w->dapm != dapm) | |
3985 | continue; | |
51737470 | 3986 | if (w->power) { |
828a842f | 3987 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3988 | w->power = 0; |
51737470 MB |
3989 | powerdown = 1; |
3990 | } | |
3991 | } | |
3992 | ||
3993 | /* If there were no widgets to power down we're already in | |
3994 | * standby. | |
3995 | */ | |
3996 | if (powerdown) { | |
7679e42e MB |
3997 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3998 | snd_soc_dapm_set_bias_level(dapm, | |
3999 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4000 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4001 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4002 | snd_soc_dapm_set_bias_level(dapm, | |
4003 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4004 | } |
01005a72 LG |
4005 | |
4006 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4007 | } |
4008 | ||
4009 | /* | |
4010 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4011 | */ | |
4012 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4013 | { | |
57996358 | 4014 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4015 | |
57996358 | 4016 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4017 | if (dapm != &card->dapm) { |
4018 | soc_dapm_shutdown_dapm(dapm); | |
4019 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4020 | snd_soc_dapm_set_bias_level(dapm, | |
4021 | SND_SOC_BIAS_OFF); | |
4022 | } | |
ce6120cc | 4023 | } |
17282ba4 XX |
4024 | |
4025 | soc_dapm_shutdown_dapm(&card->dapm); | |
4026 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4027 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4028 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4029 | } |
4030 | ||
2b97eabc | 4031 | /* Module information */ |
d331124d | 4032 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4033 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4034 | MODULE_LICENSE("GPL"); |