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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
57295073 LPC |
50 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
51 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
52 | const char *control, | |
53 | int (*connected)(struct snd_soc_dapm_widget *source, | |
54 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 55 | |
cc76e7de | 56 | struct snd_soc_dapm_widget * |
57295073 LPC |
57 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
58 | const struct snd_soc_dapm_widget *widget); | |
59 | ||
02aa78ab LG |
60 | struct snd_soc_dapm_widget * |
61 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
62 | const struct snd_soc_dapm_widget *widget); |
63 | ||
2b97eabc RP |
64 | /* dapm power sequences - make this per codec in the future */ |
65 | static int dapm_up_seq[] = { | |
38357ab2 | 66 | [snd_soc_dapm_pre] = 0, |
62ea874a | 67 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 68 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
69 | [snd_soc_dapm_supply] = 2, |
70 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 71 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
72 | [snd_soc_dapm_dai_in] = 4, |
73 | [snd_soc_dapm_dai_out] = 4, | |
74 | [snd_soc_dapm_aif_in] = 4, | |
75 | [snd_soc_dapm_aif_out] = 4, | |
76 | [snd_soc_dapm_mic] = 5, | |
77 | [snd_soc_dapm_mux] = 6, | |
d714f97c | 78 | [snd_soc_dapm_demux] = 6, |
1dd275b6 MB |
79 | [snd_soc_dapm_dac] = 7, |
80 | [snd_soc_dapm_switch] = 8, | |
81 | [snd_soc_dapm_mixer] = 8, | |
82 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
83 | [snd_soc_dapm_pga] = 9, | |
84 | [snd_soc_dapm_adc] = 10, | |
85 | [snd_soc_dapm_out_drv] = 11, | |
86 | [snd_soc_dapm_hp] = 11, | |
87 | [snd_soc_dapm_spk] = 11, | |
88 | [snd_soc_dapm_line] = 11, | |
89 | [snd_soc_dapm_kcontrol] = 12, | |
90 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 91 | }; |
ca9c1aae | 92 | |
2b97eabc | 93 | static int dapm_down_seq[] = { |
38357ab2 | 94 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
95 | [snd_soc_dapm_kcontrol] = 1, |
96 | [snd_soc_dapm_adc] = 2, | |
97 | [snd_soc_dapm_hp] = 3, | |
98 | [snd_soc_dapm_spk] = 3, | |
99 | [snd_soc_dapm_line] = 3, | |
100 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 101 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 102 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 103 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
104 | [snd_soc_dapm_mixer] = 5, |
105 | [snd_soc_dapm_dac] = 6, | |
106 | [snd_soc_dapm_mic] = 7, | |
107 | [snd_soc_dapm_micbias] = 8, | |
108 | [snd_soc_dapm_mux] = 9, | |
d714f97c | 109 | [snd_soc_dapm_demux] = 9, |
010ff262 MB |
110 | [snd_soc_dapm_aif_in] = 10, |
111 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
112 | [snd_soc_dapm_dai_in] = 10, |
113 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 114 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 115 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
116 | [snd_soc_dapm_clock_supply] = 13, |
117 | [snd_soc_dapm_regulator_supply] = 13, | |
118 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
119 | }; |
120 | ||
f9fa2b18 MB |
121 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
122 | { | |
123 | if (dapm->card && dapm->card->instantiated) | |
124 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
125 | } | |
126 | ||
12ef193d | 127 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
128 | { |
129 | if (pop_time) | |
130 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
131 | } | |
132 | ||
fd8d3bc0 | 133 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
134 | { |
135 | va_list args; | |
fd8d3bc0 | 136 | char *buf; |
15e4c72f | 137 | |
fd8d3bc0 JN |
138 | if (!pop_time) |
139 | return; | |
15e4c72f | 140 | |
fd8d3bc0 JN |
141 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
142 | if (buf == NULL) | |
143 | return; | |
15e4c72f | 144 | |
fd8d3bc0 JN |
145 | va_start(args, fmt); |
146 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 147 | dev_info(dev, "%s", buf); |
15e4c72f | 148 | va_end(args); |
fd8d3bc0 JN |
149 | |
150 | kfree(buf); | |
15e4c72f MB |
151 | } |
152 | ||
db432b41 MB |
153 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
154 | { | |
155 | return !list_empty(&w->dirty); | |
156 | } | |
157 | ||
492c0a18 | 158 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 159 | { |
f9fa2b18 MB |
160 | dapm_assert_locked(w->dapm); |
161 | ||
75c1f891 MB |
162 | if (!dapm_dirty_widget(w)) { |
163 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
164 | w->name, reason); | |
db432b41 | 165 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 166 | } |
db432b41 MB |
167 | } |
168 | ||
92a99ea4 LPC |
169 | /* |
170 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of input | |
171 | * paths | |
172 | * @w: The widget for which to invalidate the cached number of input paths | |
173 | * | |
174 | * The function resets the cached number of inputs for the specified widget and | |
175 | * all widgets that can be reached via outgoing paths from the widget. | |
176 | * | |
177 | * This function must be called if the number of input paths for a widget might | |
178 | * have changed. E.g. if the source state of a widget changes or a path is added | |
179 | * or activated with the widget as the sink. | |
180 | */ | |
181 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
182 | { | |
183 | struct snd_soc_dapm_widget *sink; | |
184 | struct snd_soc_dapm_path *p; | |
185 | LIST_HEAD(list); | |
186 | ||
187 | dapm_assert_locked(w->dapm); | |
188 | ||
189 | if (w->inputs == -1) | |
190 | return; | |
191 | ||
192 | w->inputs = -1; | |
193 | list_add_tail(&w->work_list, &list); | |
194 | ||
195 | list_for_each_entry(w, &list, work_list) { | |
196 | list_for_each_entry(p, &w->sinks, list_source) { | |
197 | if (p->is_supply || p->weak || !p->connect) | |
198 | continue; | |
199 | sink = p->sink; | |
200 | if (sink->inputs != -1) { | |
201 | sink->inputs = -1; | |
202 | list_add_tail(&sink->work_list, &list); | |
203 | } | |
204 | } | |
205 | } | |
206 | } | |
207 | ||
208 | /* | |
209 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
210 | * output paths | |
211 | * @w: The widget for which to invalidate the cached number of output paths | |
212 | * | |
213 | * Resets the cached number of outputs for the specified widget and all widgets | |
214 | * that can be reached via incoming paths from the widget. | |
215 | * | |
216 | * This function must be called if the number of output paths for a widget might | |
217 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
218 | * or activated with the widget as the source. | |
219 | */ | |
220 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
221 | { | |
222 | struct snd_soc_dapm_widget *source; | |
223 | struct snd_soc_dapm_path *p; | |
224 | LIST_HEAD(list); | |
225 | ||
226 | dapm_assert_locked(w->dapm); | |
227 | ||
228 | if (w->outputs == -1) | |
229 | return; | |
230 | ||
231 | w->outputs = -1; | |
232 | list_add_tail(&w->work_list, &list); | |
233 | ||
234 | list_for_each_entry(w, &list, work_list) { | |
235 | list_for_each_entry(p, &w->sources, list_sink) { | |
236 | if (p->is_supply || p->weak || !p->connect) | |
237 | continue; | |
238 | source = p->source; | |
239 | if (source->outputs != -1) { | |
240 | source->outputs = -1; | |
241 | list_add_tail(&source->work_list, &list); | |
242 | } | |
243 | } | |
244 | } | |
245 | } | |
246 | ||
247 | /* | |
248 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
249 | * for the widgets connected to a path | |
250 | * @p: The path to invalidate | |
251 | * | |
252 | * Resets the cached number of inputs for the sink of the path and the cached | |
253 | * number of outputs for the source of the path. | |
254 | * | |
255 | * This function must be called when a path is added, removed or the connected | |
256 | * state changes. | |
257 | */ | |
258 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
259 | { | |
260 | /* | |
261 | * Weak paths or supply paths do not influence the number of input or | |
262 | * output paths of their neighbors. | |
263 | */ | |
264 | if (p->weak || p->is_supply) | |
265 | return; | |
266 | ||
267 | /* | |
268 | * The number of connected endpoints is the sum of the number of | |
269 | * connected endpoints of all neighbors. If a node with 0 connected | |
270 | * endpoints is either connected or disconnected that sum won't change, | |
271 | * so there is no need to re-check the path. | |
272 | */ | |
273 | if (p->source->inputs != 0) | |
274 | dapm_widget_invalidate_input_paths(p->sink); | |
275 | if (p->sink->outputs != 0) | |
276 | dapm_widget_invalidate_output_paths(p->source); | |
277 | } | |
278 | ||
8be4da29 | 279 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 280 | { |
e2d32ff6 MB |
281 | struct snd_soc_dapm_widget *w; |
282 | ||
283 | mutex_lock(&card->dapm_mutex); | |
284 | ||
285 | list_for_each_entry(w, &card->widgets, list) { | |
92a99ea4 | 286 | if (w->is_sink || w->is_source) { |
8be4da29 | 287 | dapm_mark_dirty(w, "Rechecking endpoints"); |
92a99ea4 LPC |
288 | if (w->is_sink) |
289 | dapm_widget_invalidate_output_paths(w); | |
290 | if (w->is_source) | |
291 | dapm_widget_invalidate_input_paths(w); | |
292 | } | |
e2d32ff6 MB |
293 | } |
294 | ||
295 | mutex_unlock(&card->dapm_mutex); | |
296 | } | |
8be4da29 | 297 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 298 | |
2b97eabc | 299 | /* create a new dapm widget */ |
88cb4290 | 300 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
301 | const struct snd_soc_dapm_widget *_widget) |
302 | { | |
88cb4290 | 303 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
304 | } |
305 | ||
e84357f7 | 306 | struct dapm_kcontrol_data { |
cf7c1de2 | 307 | unsigned int value; |
57295073 | 308 | struct snd_soc_dapm_widget *widget; |
5106b92f | 309 | struct list_head paths; |
2c75bdf3 | 310 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
311 | }; |
312 | ||
313 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
314 | struct snd_kcontrol *kcontrol) | |
315 | { | |
316 | struct dapm_kcontrol_data *data; | |
57295073 | 317 | struct soc_mixer_control *mc; |
561ed680 | 318 | struct soc_enum *e; |
773da9b3 CK |
319 | const char *name; |
320 | int ret; | |
e84357f7 | 321 | |
2c75bdf3 | 322 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 323 | if (!data) |
e84357f7 | 324 | return -ENOMEM; |
e84357f7 | 325 | |
5106b92f | 326 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 327 | |
57295073 LPC |
328 | switch (widget->id) { |
329 | case snd_soc_dapm_switch: | |
330 | case snd_soc_dapm_mixer: | |
331 | case snd_soc_dapm_mixer_named_ctl: | |
332 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
333 | ||
334 | if (mc->autodisable) { | |
335 | struct snd_soc_dapm_widget template; | |
336 | ||
773da9b3 CK |
337 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, |
338 | "Autodisable"); | |
339 | if (!name) { | |
340 | ret = -ENOMEM; | |
341 | goto err_data; | |
342 | } | |
343 | ||
57295073 LPC |
344 | memset(&template, 0, sizeof(template)); |
345 | template.reg = mc->reg; | |
346 | template.mask = (1 << fls(mc->max)) - 1; | |
347 | template.shift = mc->shift; | |
348 | if (mc->invert) | |
349 | template.off_val = mc->max; | |
350 | else | |
351 | template.off_val = 0; | |
352 | template.on_val = template.off_val; | |
353 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 354 | template.name = name; |
57295073 | 355 | |
2daabd78 LPC |
356 | data->value = template.on_val; |
357 | ||
02aa78ab LG |
358 | data->widget = |
359 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 360 | &template); |
e18077b6 | 361 | kfree(name); |
57295073 | 362 | if (!data->widget) { |
773da9b3 | 363 | ret = -ENOMEM; |
e18077b6 | 364 | goto err_data; |
57295073 LPC |
365 | } |
366 | } | |
367 | break; | |
d714f97c | 368 | case snd_soc_dapm_demux: |
561ed680 CK |
369 | case snd_soc_dapm_mux: |
370 | e = (struct soc_enum *)kcontrol->private_value; | |
371 | ||
372 | if (e->autodisable) { | |
373 | struct snd_soc_dapm_widget template; | |
374 | ||
375 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, | |
376 | "Autodisable"); | |
377 | if (!name) { | |
378 | ret = -ENOMEM; | |
379 | goto err_data; | |
380 | } | |
381 | ||
382 | memset(&template, 0, sizeof(template)); | |
383 | template.reg = e->reg; | |
384 | template.mask = e->mask << e->shift_l; | |
385 | template.shift = e->shift_l; | |
386 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
387 | template.on_val = template.off_val; | |
388 | template.id = snd_soc_dapm_kcontrol; | |
389 | template.name = name; | |
390 | ||
391 | data->value = template.on_val; | |
392 | ||
ffacb48e CK |
393 | data->widget = snd_soc_dapm_new_control_unlocked( |
394 | widget->dapm, &template); | |
e18077b6 | 395 | kfree(name); |
561ed680 CK |
396 | if (!data->widget) { |
397 | ret = -ENOMEM; | |
e18077b6 | 398 | goto err_data; |
561ed680 CK |
399 | } |
400 | ||
401 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
402 | widget, NULL, NULL); | |
403 | } | |
404 | break; | |
57295073 LPC |
405 | default: |
406 | break; | |
407 | } | |
408 | ||
e84357f7 LPC |
409 | kcontrol->private_data = data; |
410 | ||
411 | return 0; | |
773da9b3 | 412 | |
773da9b3 CK |
413 | err_data: |
414 | kfree(data); | |
415 | return ret; | |
e84357f7 LPC |
416 | } |
417 | ||
418 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
419 | { | |
420 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 421 | kfree(data->wlist); |
e84357f7 LPC |
422 | kfree(data); |
423 | } | |
424 | ||
425 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
426 | const struct snd_kcontrol *kcontrol) | |
427 | { | |
428 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
429 | ||
2c75bdf3 | 430 | return data->wlist; |
e84357f7 LPC |
431 | } |
432 | ||
433 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
434 | struct snd_soc_dapm_widget *widget) | |
435 | { | |
436 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
437 | struct snd_soc_dapm_widget_list *new_wlist; |
438 | unsigned int n; | |
e84357f7 | 439 | |
2c75bdf3 LPC |
440 | if (data->wlist) |
441 | n = data->wlist->num_widgets + 1; | |
442 | else | |
443 | n = 1; | |
444 | ||
445 | new_wlist = krealloc(data->wlist, | |
446 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
447 | if (!new_wlist) | |
e84357f7 LPC |
448 | return -ENOMEM; |
449 | ||
2c75bdf3 LPC |
450 | new_wlist->widgets[n - 1] = widget; |
451 | new_wlist->num_widgets = n; | |
e84357f7 | 452 | |
2c75bdf3 | 453 | data->wlist = new_wlist; |
e84357f7 LPC |
454 | |
455 | return 0; | |
456 | } | |
457 | ||
5106b92f LPC |
458 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
459 | struct snd_soc_dapm_path *path) | |
460 | { | |
461 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
462 | ||
463 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
464 | } |
465 | ||
466 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
467 | { | |
468 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
469 | ||
470 | if (!data->widget) | |
471 | return true; | |
472 | ||
473 | return data->widget->power; | |
5106b92f LPC |
474 | } |
475 | ||
476 | static struct list_head *dapm_kcontrol_get_path_list( | |
477 | const struct snd_kcontrol *kcontrol) | |
478 | { | |
479 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
480 | ||
481 | return &data->paths; | |
482 | } | |
483 | ||
484 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
485 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
486 | list_kcontrol) | |
487 | ||
5dc0158a | 488 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
489 | { |
490 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
491 | ||
492 | return data->value; | |
493 | } | |
5dc0158a | 494 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
495 | |
496 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
497 | unsigned int value) | |
498 | { | |
499 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
500 | ||
501 | if (data->value == value) | |
502 | return false; | |
503 | ||
57295073 LPC |
504 | if (data->widget) |
505 | data->widget->on_val = value; | |
506 | ||
cf7c1de2 LPC |
507 | data->value = value; |
508 | ||
509 | return true; | |
510 | } | |
511 | ||
ce0fc93a LPC |
512 | /** |
513 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
514 | * kcontrol | |
515 | * @kcontrol: The kcontrol | |
516 | * | |
517 | * Note: This function must only be used on kcontrols that are known to have | |
518 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
519 | */ | |
520 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
521 | struct snd_kcontrol *kcontrol) | |
522 | { | |
523 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
524 | } | |
525 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
526 | ||
6c120e19 LG |
527 | static void dapm_reset(struct snd_soc_card *card) |
528 | { | |
529 | struct snd_soc_dapm_widget *w; | |
530 | ||
f9fa2b18 MB |
531 | lockdep_assert_held(&card->dapm_mutex); |
532 | ||
6c120e19 LG |
533 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
534 | ||
535 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 536 | w->new_power = w->power; |
6c120e19 | 537 | w->power_checked = false; |
6c120e19 LG |
538 | } |
539 | } | |
540 | ||
94f99c87 LPC |
541 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
542 | { | |
543 | if (!dapm->component) | |
544 | return NULL; | |
545 | return dapm->component->name_prefix; | |
546 | } | |
547 | ||
ce0fc93a | 548 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 549 | unsigned int *value) |
0445bdf4 | 550 | { |
ce0fc93a | 551 | if (!dapm->component) |
e2c330b9 | 552 | return -EIO; |
ce0fc93a | 553 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
554 | } |
555 | ||
ce0fc93a | 556 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 557 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 558 | { |
ce0fc93a | 559 | if (!dapm->component) |
e2c330b9 | 560 | return -EIO; |
fcf6c5ea MB |
561 | return snd_soc_component_update_bits(dapm->component, reg, |
562 | mask, value); | |
49575fb5 LG |
563 | } |
564 | ||
ce0fc93a LPC |
565 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
566 | int reg, unsigned int mask, unsigned int value) | |
567 | { | |
568 | if (!dapm->component) | |
569 | return -EIO; | |
570 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
571 | } | |
572 | ||
eb270e98 MB |
573 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
574 | { | |
e2c330b9 LPC |
575 | if (dapm->component) |
576 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
577 | } |
578 | ||
45a110a1 CK |
579 | static struct snd_soc_dapm_widget * |
580 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
581 | { | |
582 | struct snd_soc_dapm_widget *w = wcache->widget; | |
583 | struct list_head *wlist; | |
584 | const int depth = 2; | |
585 | int i = 0; | |
586 | ||
587 | if (w) { | |
588 | wlist = &w->dapm->card->widgets; | |
589 | ||
590 | list_for_each_entry_from(w, wlist, list) { | |
591 | if (!strcmp(name, w->name)) | |
592 | return w; | |
593 | ||
594 | if (++i == depth) | |
595 | break; | |
596 | } | |
597 | } | |
598 | ||
599 | return NULL; | |
600 | } | |
601 | ||
602 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
603 | struct snd_soc_dapm_widget *w) | |
604 | { | |
605 | wcache->widget = w; | |
606 | } | |
607 | ||
fa880775 LPC |
608 | /** |
609 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
610 | * @dapm: The DAPM context for which to set the level | |
611 | * @level: The level to set | |
612 | * | |
613 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
614 | * callback of DAPM context with the specified level. This will even happen if | |
615 | * the context is already at the same level. Furthermore it will not go through | |
616 | * the normal bias level sequencing, meaning any intermediate states between the | |
617 | * current and the target state will not be entered. | |
618 | * | |
619 | * Note that the change in bias level is only temporary and the next time | |
620 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
621 | * determined by the DAPM core. The function is mainly intended to be used to | |
622 | * used during probe or resume from suspend to power up the device so | |
623 | * initialization can be done, before the DAPM core takes over. | |
624 | */ | |
625 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
626 | enum snd_soc_bias_level level) | |
627 | { | |
628 | int ret = 0; | |
629 | ||
630 | if (dapm->set_bias_level) | |
631 | ret = dapm->set_bias_level(dapm, level); | |
632 | ||
f4bf8d77 LPC |
633 | if (ret == 0) |
634 | dapm->bias_level = level; | |
635 | ||
fa880775 LPC |
636 | return ret; |
637 | } | |
638 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
639 | ||
452c5eaa MB |
640 | /** |
641 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 642 | * @dapm: DAPM context |
452c5eaa MB |
643 | * @level: level to configure |
644 | * | |
645 | * Configure the bias (power) levels for the SoC audio device. | |
646 | * | |
647 | * Returns 0 for success else error. | |
648 | */ | |
ed5a4c47 | 649 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 650 | enum snd_soc_bias_level level) |
452c5eaa | 651 | { |
ed5a4c47 | 652 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
653 | int ret = 0; |
654 | ||
84e90930 MB |
655 | trace_snd_soc_bias_level_start(card, level); |
656 | ||
f0fba2ad | 657 | if (card && card->set_bias_level) |
d4c6005f | 658 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
659 | if (ret != 0) |
660 | goto out; | |
661 | ||
fa880775 LPC |
662 | if (!card || dapm != &card->dapm) |
663 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 664 | |
171ec6b0 MB |
665 | if (ret != 0) |
666 | goto out; | |
667 | ||
668 | if (card && card->set_bias_level_post) | |
d4c6005f | 669 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 670 | out: |
84e90930 MB |
671 | trace_snd_soc_bias_level_done(card, level); |
672 | ||
452c5eaa MB |
673 | return ret; |
674 | } | |
675 | ||
74b8f955 | 676 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 677 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
678 | struct snd_soc_dapm_path *path, const char *control_name, |
679 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 680 | { |
d714f97c | 681 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 682 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 683 | unsigned int val, item; |
2b97eabc | 684 | int i; |
24ff33ac | 685 | |
234c0b8f | 686 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 687 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
688 | val = (val >> e->shift_l) & e->mask; |
689 | item = snd_soc_enum_val_to_item(e, val); | |
690 | } else { | |
24ff33ac DP |
691 | /* since a virtual mux has no backing registers to |
692 | * decide which path to connect, it will try to match | |
693 | * with the first enumeration. This is to ensure | |
694 | * that the default mux choice (the first) will be | |
695 | * correctly powered up during initialization. | |
696 | */ | |
234c0b8f | 697 | item = 0; |
24ff33ac | 698 | } |
2e72f8e3 | 699 | |
9a8d38db | 700 | for (i = 0; i < e->items; i++) { |
2b97eabc | 701 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 702 | path->name = e->texts[i]; |
234c0b8f LPC |
703 | if (i == item) |
704 | path->connect = 1; | |
705 | else | |
706 | path->connect = 0; | |
2b97eabc RP |
707 | return 0; |
708 | } | |
709 | } | |
710 | ||
711 | return -ENODEV; | |
712 | } | |
713 | ||
234c0b8f | 714 | /* set up initial codec paths */ |
5fe5b767 | 715 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
716 | { |
717 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 718 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
719 | unsigned int reg = mc->reg; |
720 | unsigned int shift = mc->shift; | |
721 | unsigned int max = mc->max; | |
722 | unsigned int mask = (1 << fls(max)) - 1; | |
723 | unsigned int invert = mc->invert; | |
724 | unsigned int val; | |
725 | ||
726 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 727 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
728 | val = (val >> shift) & mask; |
729 | if (invert) | |
730 | val = max - val; | |
731 | p->connect = !!val; | |
732 | } else { | |
733 | p->connect = 0; | |
734 | } | |
735 | } | |
736 | ||
74b8f955 | 737 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 738 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
739 | struct snd_soc_dapm_path *path, const char *control_name) |
740 | { | |
741 | int i; | |
742 | ||
743 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
744 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
745 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
746 | path->name = path->sink->kcontrol_news[i].name; | |
747 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
748 | return 0; |
749 | } | |
750 | } | |
751 | return -ENODEV; | |
752 | } | |
753 | ||
af46800b | 754 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 755 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
756 | const struct snd_kcontrol_new *kcontrol_new, |
757 | struct snd_kcontrol **kcontrol) | |
758 | { | |
759 | struct snd_soc_dapm_widget *w; | |
760 | int i; | |
761 | ||
762 | *kcontrol = NULL; | |
763 | ||
764 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
765 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
766 | continue; | |
af46800b SW |
767 | for (i = 0; i < w->num_kcontrols; i++) { |
768 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
769 | if (w->kcontrols) | |
770 | *kcontrol = w->kcontrols[i]; | |
771 | return 1; | |
772 | } | |
773 | } | |
774 | } | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
85762e71 SW |
779 | /* |
780 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
781 | * create it. Either way, add the widget into the control's widget list | |
782 | */ | |
783 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 784 | int kci) |
2b97eabc | 785 | { |
4b80b8c2 | 786 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 787 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 788 | const char *prefix; |
85762e71 SW |
789 | size_t prefix_len; |
790 | int shared; | |
791 | struct snd_kcontrol *kcontrol; | |
85762e71 | 792 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 793 | char *long_name = NULL; |
85762e71 | 794 | const char *name; |
e5092c96 | 795 | int ret = 0; |
efb7ac3f | 796 | |
94f99c87 | 797 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
798 | if (prefix) |
799 | prefix_len = strlen(prefix) + 1; | |
800 | else | |
801 | prefix_len = 0; | |
802 | ||
85762e71 SW |
803 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
804 | &kcontrol); | |
2b97eabc | 805 | |
85762e71 SW |
806 | if (!kcontrol) { |
807 | if (shared) { | |
808 | wname_in_long_name = false; | |
809 | kcname_in_long_name = true; | |
810 | } else { | |
811 | switch (w->id) { | |
812 | case snd_soc_dapm_switch: | |
813 | case snd_soc_dapm_mixer: | |
814 | wname_in_long_name = true; | |
815 | kcname_in_long_name = true; | |
816 | break; | |
817 | case snd_soc_dapm_mixer_named_ctl: | |
818 | wname_in_long_name = false; | |
819 | kcname_in_long_name = true; | |
820 | break; | |
d714f97c | 821 | case snd_soc_dapm_demux: |
85762e71 | 822 | case snd_soc_dapm_mux: |
85762e71 SW |
823 | wname_in_long_name = true; |
824 | kcname_in_long_name = false; | |
825 | break; | |
826 | default: | |
85762e71 | 827 | return -EINVAL; |
82cd8764 | 828 | } |
85762e71 SW |
829 | } |
830 | ||
831 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
832 | /* |
833 | * The control will get a prefix from the control | |
834 | * creation process but we're also using the same | |
835 | * prefix for widgets so cut the prefix off the | |
836 | * front of the widget name. | |
ca9c1aae | 837 | */ |
2b581074 | 838 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
839 | w->name + prefix_len, |
840 | w->kcontrol_news[kci].name); | |
e84357f7 | 841 | if (long_name == NULL) |
2b581074 | 842 | return -ENOMEM; |
85762e71 SW |
843 | |
844 | name = long_name; | |
845 | } else if (wname_in_long_name) { | |
846 | long_name = NULL; | |
847 | name = w->name + prefix_len; | |
848 | } else { | |
849 | long_name = NULL; | |
850 | name = w->kcontrol_news[kci].name; | |
851 | } | |
ca9c1aae | 852 | |
e84357f7 | 853 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 854 | prefix); |
e5092c96 DM |
855 | if (!kcontrol) { |
856 | ret = -ENOMEM; | |
857 | goto exit_free; | |
858 | } | |
859 | ||
9356e9d5 | 860 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
861 | |
862 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
863 | if (ret) { | |
864 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 865 | goto exit_free; |
e84357f7 LPC |
866 | } |
867 | ||
85762e71 SW |
868 | ret = snd_ctl_add(card, kcontrol); |
869 | if (ret < 0) { | |
870 | dev_err(dapm->dev, | |
871 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
872 | w->name, name, ret); | |
e5092c96 | 873 | goto exit_free; |
85762e71 | 874 | } |
85762e71 | 875 | } |
2b97eabc | 876 | |
2c75bdf3 | 877 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
878 | if (ret == 0) |
879 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 880 | |
e5092c96 DM |
881 | exit_free: |
882 | kfree(long_name); | |
ca9c1aae | 883 | |
e5092c96 | 884 | return ret; |
85762e71 | 885 | } |
219b93f5 | 886 | |
85762e71 SW |
887 | /* create new dapm mixer control */ |
888 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
889 | { | |
890 | int i, ret; | |
891 | struct snd_soc_dapm_path *path; | |
561ed680 | 892 | struct dapm_kcontrol_data *data; |
85762e71 SW |
893 | |
894 | /* add kcontrol */ | |
895 | for (i = 0; i < w->num_kcontrols; i++) { | |
896 | /* match name */ | |
897 | list_for_each_entry(path, &w->sources, list_sink) { | |
898 | /* mixer/mux paths name must match control name */ | |
899 | if (path->name != (char *)w->kcontrol_news[i].name) | |
900 | continue; | |
901 | ||
561ed680 CK |
902 | if (!w->kcontrols[i]) { |
903 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); | |
904 | if (ret < 0) | |
905 | return ret; | |
2b97eabc | 906 | } |
85762e71 | 907 | |
946d92a1 | 908 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
909 | |
910 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
911 | if (data->widget) | |
912 | snd_soc_dapm_add_path(data->widget->dapm, | |
913 | data->widget, | |
914 | path->source, | |
915 | NULL, NULL); | |
2b97eabc RP |
916 | } |
917 | } | |
85762e71 SW |
918 | |
919 | return 0; | |
2b97eabc RP |
920 | } |
921 | ||
922 | /* create new dapm mux control */ | |
4b80b8c2 | 923 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 924 | { |
4b80b8c2 | 925 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 926 | struct snd_soc_dapm_path *path; |
d714f97c LPC |
927 | struct list_head *paths; |
928 | const char *type; | |
af46800b | 929 | int ret; |
2b97eabc | 930 | |
d714f97c LPC |
931 | switch (w->id) { |
932 | case snd_soc_dapm_mux: | |
933 | paths = &w->sources; | |
934 | type = "mux"; | |
935 | break; | |
936 | case snd_soc_dapm_demux: | |
937 | paths = &w->sinks; | |
938 | type = "demux"; | |
939 | break; | |
940 | default: | |
941 | return -EINVAL; | |
942 | } | |
943 | ||
af46800b SW |
944 | if (w->num_kcontrols != 1) { |
945 | dev_err(dapm->dev, | |
d714f97c | 946 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 947 | w->name); |
2b97eabc RP |
948 | return -EINVAL; |
949 | } | |
950 | ||
d714f97c LPC |
951 | if (list_empty(paths)) { |
952 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); | |
85762e71 | 953 | return -EINVAL; |
af46800b | 954 | } |
ce6120cc | 955 | |
946d92a1 | 956 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
957 | if (ret < 0) |
958 | return ret; | |
fad59888 | 959 | |
d714f97c LPC |
960 | if (w->id == snd_soc_dapm_mux) { |
961 | list_for_each_entry(path, &w->sources, list_sink) { | |
962 | if (path->name) | |
963 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
964 | } | |
965 | } else { | |
966 | list_for_each_entry(path, &w->sinks, list_source) { | |
967 | if (path->name) | |
968 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
969 | } | |
98407efc | 970 | } |
2b97eabc | 971 | |
af46800b | 972 | return 0; |
2b97eabc RP |
973 | } |
974 | ||
975 | /* create new dapm volume control */ | |
4b80b8c2 | 976 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 977 | { |
a6c65736 | 978 | if (w->num_kcontrols) |
f7d41ae8 | 979 | dev_err(w->dapm->dev, |
30a6a1a4 | 980 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 981 | |
a6c65736 | 982 | return 0; |
2b97eabc RP |
983 | } |
984 | ||
c6615082 NO |
985 | /* create new dapm dai link control */ |
986 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
987 | { | |
988 | int i, ret; | |
989 | struct snd_kcontrol *kcontrol; | |
990 | struct snd_soc_dapm_context *dapm = w->dapm; | |
991 | struct snd_card *card = dapm->card->snd_card; | |
992 | ||
993 | /* create control for links with > 1 config */ | |
994 | if (w->num_params <= 1) | |
995 | return 0; | |
996 | ||
997 | /* add kcontrol */ | |
998 | for (i = 0; i < w->num_kcontrols; i++) { | |
999 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1000 | w->name, NULL); | |
1001 | ret = snd_ctl_add(card, kcontrol); | |
1002 | if (ret < 0) { | |
1003 | dev_err(dapm->dev, | |
1004 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1005 | w->name, w->kcontrol_news[i].name, ret); | |
1006 | return ret; | |
1007 | } | |
1008 | kcontrol->private_data = w; | |
1009 | w->kcontrols[i] = kcontrol; | |
1010 | } | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
9949788b MB |
1015 | /* We implement power down on suspend by checking the power state of |
1016 | * the ALSA card - when we are suspending the ALSA state for the card | |
1017 | * is set to D3. | |
1018 | */ | |
1019 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1020 | { | |
12ea2c78 | 1021 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1022 | |
f0fba2ad | 1023 | switch (level) { |
9949788b MB |
1024 | case SNDRV_CTL_POWER_D3hot: |
1025 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1026 | if (widget->ignore_suspend) |
30a6a1a4 | 1027 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1028 | widget->name); |
1547aba9 | 1029 | return widget->ignore_suspend; |
9949788b MB |
1030 | default: |
1031 | return 1; | |
1032 | } | |
1033 | } | |
1034 | ||
1ce43acf LPC |
1035 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1036 | struct list_head *widgets) | |
ec2e3031 | 1037 | { |
1ce43acf LPC |
1038 | struct snd_soc_dapm_widget *w; |
1039 | struct list_head *it; | |
1040 | unsigned int size = 0; | |
1041 | unsigned int i = 0; | |
ec2e3031 | 1042 | |
1ce43acf LPC |
1043 | list_for_each(it, widgets) |
1044 | size++; | |
ec2e3031 | 1045 | |
1ce43acf LPC |
1046 | *list = kzalloc(sizeof(**list) + size * sizeof(*w), GFP_KERNEL); |
1047 | if (*list == NULL) | |
ec2e3031 | 1048 | return -ENOMEM; |
ec2e3031 | 1049 | |
1ce43acf LPC |
1050 | list_for_each_entry(w, widgets, work_list) |
1051 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1052 | |
1ce43acf LPC |
1053 | (*list)->num_widgets = i; |
1054 | ||
1055 | return 0; | |
ec2e3031 LG |
1056 | } |
1057 | ||
2b97eabc RP |
1058 | /* |
1059 | * Recursively check for a completed path to an active or physically connected | |
1060 | * output widget. Returns number of complete paths. | |
1061 | */ | |
ec2e3031 | 1062 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
1ce43acf | 1063 | struct list_head *list) |
2b97eabc RP |
1064 | { |
1065 | struct snd_soc_dapm_path *path; | |
1066 | int con = 0; | |
1067 | ||
024dc078 MB |
1068 | if (widget->outputs >= 0) |
1069 | return widget->outputs; | |
1070 | ||
de02d078 MB |
1071 | DAPM_UPDATE_STAT(widget, path_checks); |
1072 | ||
1ce43acf LPC |
1073 | /* do we need to add this widget to the list ? */ |
1074 | if (list) | |
1075 | list_add_tail(&widget->work_list, list); | |
1076 | ||
6dd98b0a LPC |
1077 | if (widget->is_sink && widget->connected) { |
1078 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
1079 | return widget->outputs; | |
2b97eabc RP |
1080 | } |
1081 | ||
1082 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
1083 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1084 | ||
c1862c8b | 1085 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1086 | continue; |
1087 | ||
8af294b4 MB |
1088 | if (path->walking) |
1089 | return 1; | |
1090 | ||
ec2e3031 LG |
1091 | trace_snd_soc_dapm_output_path(widget, path); |
1092 | ||
7ddd4cd5 | 1093 | if (path->connect) { |
8af294b4 | 1094 | path->walking = 1; |
ec2e3031 | 1095 | con += is_connected_output_ep(path->sink, list); |
8af294b4 | 1096 | path->walking = 0; |
2b97eabc RP |
1097 | } |
1098 | } | |
1099 | ||
024dc078 MB |
1100 | widget->outputs = con; |
1101 | ||
2b97eabc RP |
1102 | return con; |
1103 | } | |
1104 | ||
1105 | /* | |
1106 | * Recursively check for a completed path to an active or physically connected | |
1107 | * input widget. Returns number of complete paths. | |
1108 | */ | |
ec2e3031 | 1109 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1ce43acf | 1110 | struct list_head *list) |
2b97eabc RP |
1111 | { |
1112 | struct snd_soc_dapm_path *path; | |
1113 | int con = 0; | |
1114 | ||
024dc078 MB |
1115 | if (widget->inputs >= 0) |
1116 | return widget->inputs; | |
1117 | ||
de02d078 MB |
1118 | DAPM_UPDATE_STAT(widget, path_checks); |
1119 | ||
1ce43acf LPC |
1120 | /* do we need to add this widget to the list ? */ |
1121 | if (list) | |
1122 | list_add_tail(&widget->work_list, list); | |
1123 | ||
6dd98b0a LPC |
1124 | if (widget->is_source && widget->connected) { |
1125 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1126 | return widget->inputs; | |
2b97eabc RP |
1127 | } |
1128 | ||
1129 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1130 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1131 | ||
c1862c8b | 1132 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1133 | continue; |
1134 | ||
8af294b4 MB |
1135 | if (path->walking) |
1136 | return 1; | |
1137 | ||
ec2e3031 LG |
1138 | trace_snd_soc_dapm_input_path(widget, path); |
1139 | ||
7ddd4cd5 | 1140 | if (path->connect) { |
8af294b4 | 1141 | path->walking = 1; |
ec2e3031 | 1142 | con += is_connected_input_ep(path->source, list); |
8af294b4 | 1143 | path->walking = 0; |
2b97eabc RP |
1144 | } |
1145 | } | |
1146 | ||
024dc078 MB |
1147 | widget->inputs = con; |
1148 | ||
2b97eabc RP |
1149 | return con; |
1150 | } | |
1151 | ||
ec2e3031 LG |
1152 | /** |
1153 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1154 | * @dai: the soc DAI. | |
1155 | * @stream: stream direction. | |
1156 | * @list: list of active widgets for this stream. | |
1157 | * | |
1158 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1159 | * the initial stream specified by name. This takes into account | |
1160 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1161 | * | |
1162 | * Returns the number of valid paths or negative error. | |
1163 | */ | |
1164 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1165 | struct snd_soc_dapm_widget_list **list) | |
1166 | { | |
313665b9 | 1167 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1168 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1169 | LIST_HEAD(widgets); |
ec2e3031 | 1170 | int paths; |
1ce43acf | 1171 | int ret; |
ec2e3031 LG |
1172 | |
1173 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1174 | |
1175 | /* | |
1176 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1177 | * to reset the cached number of inputs and outputs. | |
1178 | */ | |
1179 | list_for_each_entry(w, &card->widgets, list) { | |
1180 | w->inputs = -1; | |
1181 | w->outputs = -1; | |
1182 | } | |
ec2e3031 | 1183 | |
130897ac | 1184 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1ce43acf | 1185 | paths = is_connected_output_ep(dai->playback_widget, &widgets); |
130897ac | 1186 | else |
1ce43acf LPC |
1187 | paths = is_connected_input_ep(dai->capture_widget, &widgets); |
1188 | ||
1189 | /* Drop starting point */ | |
1190 | list_del(widgets.next); | |
1191 | ||
1192 | ret = dapm_widget_list_create(list, &widgets); | |
1193 | if (ret) | |
1194 | return ret; | |
ec2e3031 LG |
1195 | |
1196 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1197 | mutex_unlock(&card->dapm_mutex); |
1198 | ||
1199 | return paths; | |
1200 | } | |
1201 | ||
62ea874a MB |
1202 | /* |
1203 | * Handler for regulator supply widget. | |
1204 | */ | |
1205 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1206 | struct snd_kcontrol *kcontrol, int event) | |
1207 | { | |
c05b84d1 MB |
1208 | int ret; |
1209 | ||
eb270e98 MB |
1210 | soc_dapm_async_complete(w->dapm); |
1211 | ||
c05b84d1 | 1212 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1213 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1214 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1215 | if (ret != 0) |
1216 | dev_warn(w->dapm->dev, | |
30686c35 | 1217 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1218 | w->name, ret); |
1219 | } | |
1220 | ||
a3cc056b | 1221 | return regulator_enable(w->regulator); |
c05b84d1 | 1222 | } else { |
de9ba98b | 1223 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1224 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1225 | if (ret != 0) |
1226 | dev_warn(w->dapm->dev, | |
30686c35 | 1227 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1228 | w->name, ret); |
1229 | } | |
1230 | ||
a3cc056b | 1231 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1232 | } |
62ea874a MB |
1233 | } |
1234 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1235 | ||
d7e7eb91 OL |
1236 | /* |
1237 | * Handler for clock supply widget. | |
1238 | */ | |
1239 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1240 | struct snd_kcontrol *kcontrol, int event) | |
1241 | { | |
1242 | if (!w->clk) | |
1243 | return -EIO; | |
1244 | ||
eb270e98 MB |
1245 | soc_dapm_async_complete(w->dapm); |
1246 | ||
ec02995a | 1247 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1248 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1249 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1250 | } else { |
37c1b927 | 1251 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1252 | return 0; |
1253 | } | |
ec02995a | 1254 | #endif |
98b3cf12 | 1255 | return 0; |
d7e7eb91 OL |
1256 | } |
1257 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1258 | ||
d805002b MB |
1259 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1260 | { | |
9b8a83b2 MB |
1261 | if (w->power_checked) |
1262 | return w->new_power; | |
1263 | ||
d805002b | 1264 | if (w->force) |
9b8a83b2 | 1265 | w->new_power = 1; |
d805002b | 1266 | else |
9b8a83b2 MB |
1267 | w->new_power = w->power_check(w); |
1268 | ||
1269 | w->power_checked = true; | |
1270 | ||
1271 | return w->new_power; | |
d805002b MB |
1272 | } |
1273 | ||
cd0f2d47 MB |
1274 | /* Generic check to see if a widget should be powered. |
1275 | */ | |
1276 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1277 | { | |
1278 | int in, out; | |
1279 | ||
de02d078 MB |
1280 | DAPM_UPDATE_STAT(w, power_checks); |
1281 | ||
ec2e3031 | 1282 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1283 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1284 | return out != 0 && in != 0; |
1285 | } | |
1286 | ||
246d0a17 MB |
1287 | /* Check to see if a power supply is needed */ |
1288 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1289 | { | |
1290 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1291 | |
de02d078 MB |
1292 | DAPM_UPDATE_STAT(w, power_checks); |
1293 | ||
246d0a17 MB |
1294 | /* Check if one of our outputs is connected */ |
1295 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1296 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1297 | ||
bf3a9e13 MB |
1298 | if (path->weak) |
1299 | continue; | |
1300 | ||
215edda3 MB |
1301 | if (path->connected && |
1302 | !path->connected(path->source, path->sink)) | |
1303 | continue; | |
1304 | ||
f68d7e16 MB |
1305 | if (dapm_widget_power_check(path->sink)) |
1306 | return 1; | |
246d0a17 MB |
1307 | } |
1308 | ||
f68d7e16 | 1309 | return 0; |
246d0a17 MB |
1310 | } |
1311 | ||
35c64bca MB |
1312 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1313 | { | |
1314 | return 1; | |
1315 | } | |
1316 | ||
38357ab2 MB |
1317 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1318 | struct snd_soc_dapm_widget *b, | |
828a842f | 1319 | bool power_up) |
42aa3418 | 1320 | { |
828a842f MB |
1321 | int *sort; |
1322 | ||
1323 | if (power_up) | |
1324 | sort = dapm_up_seq; | |
1325 | else | |
1326 | sort = dapm_down_seq; | |
1327 | ||
38357ab2 MB |
1328 | if (sort[a->id] != sort[b->id]) |
1329 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1330 | if (a->subseq != b->subseq) { |
1331 | if (power_up) | |
1332 | return a->subseq - b->subseq; | |
1333 | else | |
1334 | return b->subseq - a->subseq; | |
1335 | } | |
b22ead2a MB |
1336 | if (a->reg != b->reg) |
1337 | return a->reg - b->reg; | |
84dab567 MB |
1338 | if (a->dapm != b->dapm) |
1339 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1340 | |
38357ab2 MB |
1341 | return 0; |
1342 | } | |
42aa3418 | 1343 | |
38357ab2 MB |
1344 | /* Insert a widget in order into a DAPM power sequence. */ |
1345 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1346 | struct list_head *list, | |
828a842f | 1347 | bool power_up) |
38357ab2 MB |
1348 | { |
1349 | struct snd_soc_dapm_widget *w; | |
1350 | ||
1351 | list_for_each_entry(w, list, power_list) | |
828a842f | 1352 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1353 | list_add_tail(&new_widget->power_list, &w->power_list); |
1354 | return; | |
1355 | } | |
1356 | ||
1357 | list_add_tail(&new_widget->power_list, list); | |
1358 | } | |
1359 | ||
95dd5cd6 | 1360 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1361 | struct snd_soc_dapm_widget *w, int event) |
1362 | { | |
68f89ad8 MB |
1363 | const char *ev_name; |
1364 | int power, ret; | |
1365 | ||
1366 | switch (event) { | |
1367 | case SND_SOC_DAPM_PRE_PMU: | |
1368 | ev_name = "PRE_PMU"; | |
1369 | power = 1; | |
1370 | break; | |
1371 | case SND_SOC_DAPM_POST_PMU: | |
1372 | ev_name = "POST_PMU"; | |
1373 | power = 1; | |
1374 | break; | |
1375 | case SND_SOC_DAPM_PRE_PMD: | |
1376 | ev_name = "PRE_PMD"; | |
1377 | power = 0; | |
1378 | break; | |
1379 | case SND_SOC_DAPM_POST_PMD: | |
1380 | ev_name = "POST_PMD"; | |
1381 | power = 0; | |
1382 | break; | |
80114129 MB |
1383 | case SND_SOC_DAPM_WILL_PMU: |
1384 | ev_name = "WILL_PMU"; | |
1385 | power = 1; | |
1386 | break; | |
1387 | case SND_SOC_DAPM_WILL_PMD: | |
1388 | ev_name = "WILL_PMD"; | |
1389 | power = 0; | |
1390 | break; | |
68f89ad8 | 1391 | default: |
a6ed0608 | 1392 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1393 | return; |
1394 | } | |
1395 | ||
39eb5fd1 | 1396 | if (w->new_power != power) |
68f89ad8 MB |
1397 | return; |
1398 | ||
1399 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1400 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1401 | w->name, ev_name); |
eb270e98 | 1402 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1403 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1404 | ret = w->event(w, NULL, event); |
84e90930 | 1405 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1406 | if (ret < 0) |
95dd5cd6 | 1407 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1408 | ev_name, w->name, ret); |
1409 | } | |
1410 | } | |
1411 | ||
b22ead2a | 1412 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1413 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1414 | struct list_head *pending) |
163cac06 | 1415 | { |
ce0fc93a | 1416 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1417 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1418 | int reg; |
b22ead2a MB |
1419 | unsigned int value = 0; |
1420 | unsigned int mask = 0; | |
b22ead2a | 1421 | |
ce0fc93a LPC |
1422 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1423 | reg = w->reg; | |
1424 | dapm = w->dapm; | |
b22ead2a MB |
1425 | |
1426 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1427 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1428 | w->power = w->new_power; |
b22ead2a | 1429 | |
de9ba98b LPC |
1430 | mask |= w->mask << w->shift; |
1431 | if (w->power) | |
1432 | value |= w->on_val << w->shift; | |
b22ead2a | 1433 | else |
de9ba98b | 1434 | value |= w->off_val << w->shift; |
b22ead2a | 1435 | |
ce0fc93a | 1436 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1437 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1438 | w->name, reg, value, mask); | |
81628103 | 1439 | |
68f89ad8 | 1440 | /* Check for events */ |
95dd5cd6 LPC |
1441 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1442 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1443 | } |
1444 | ||
1445 | if (reg >= 0) { | |
29376bc7 MB |
1446 | /* Any widget will do, they should all be updating the |
1447 | * same register. | |
1448 | */ | |
29376bc7 | 1449 | |
ce0fc93a | 1450 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1451 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1452 | value, mask, reg, card->pop_time); |
1453 | pop_wait(card->pop_time); | |
ce0fc93a | 1454 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1455 | } |
1456 | ||
81628103 | 1457 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1458 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1459 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1460 | } |
b22ead2a | 1461 | } |
42aa3418 | 1462 | |
b22ead2a MB |
1463 | /* Apply a DAPM power sequence. |
1464 | * | |
1465 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1466 | * order to minimise the number of writes to the device required | |
1467 | * multiple widgets will be updated in a single write where possible. | |
1468 | * Currently anything that requires more than a single write is not | |
1469 | * handled. | |
1470 | */ | |
95dd5cd6 LPC |
1471 | static void dapm_seq_run(struct snd_soc_card *card, |
1472 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1473 | { |
1474 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1475 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1476 | LIST_HEAD(pending); |
1477 | int cur_sort = -1; | |
20e4859d | 1478 | int cur_subseq = -1; |
b22ead2a | 1479 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1480 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1481 | int ret, i; |
828a842f MB |
1482 | int *sort; |
1483 | ||
1484 | if (power_up) | |
1485 | sort = dapm_up_seq; | |
1486 | else | |
1487 | sort = dapm_down_seq; | |
163cac06 | 1488 | |
b22ead2a MB |
1489 | list_for_each_entry_safe(w, n, list, power_list) { |
1490 | ret = 0; | |
1491 | ||
1492 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1493 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1494 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1495 | if (!list_empty(&pending)) |
95dd5cd6 | 1496 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1497 | |
474b62d6 MB |
1498 | if (cur_dapm && cur_dapm->seq_notifier) { |
1499 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1500 | if (sort[i] == cur_sort) | |
1501 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1502 | i, |
1503 | cur_subseq); | |
474b62d6 MB |
1504 | } |
1505 | ||
eb270e98 MB |
1506 | if (cur_dapm && w->dapm != cur_dapm) |
1507 | soc_dapm_async_complete(cur_dapm); | |
1508 | ||
b22ead2a MB |
1509 | INIT_LIST_HEAD(&pending); |
1510 | cur_sort = -1; | |
b0b3e6f8 | 1511 | cur_subseq = INT_MIN; |
b22ead2a | 1512 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1513 | cur_dapm = NULL; |
b22ead2a MB |
1514 | } |
1515 | ||
163cac06 MB |
1516 | switch (w->id) { |
1517 | case snd_soc_dapm_pre: | |
1518 | if (!w->event) | |
b22ead2a MB |
1519 | list_for_each_entry_safe_continue(w, n, list, |
1520 | power_list); | |
163cac06 | 1521 | |
b22ead2a | 1522 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1523 | ret = w->event(w, |
1524 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1525 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1526 | ret = w->event(w, |
1527 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1528 | break; |
1529 | ||
1530 | case snd_soc_dapm_post: | |
1531 | if (!w->event) | |
b22ead2a MB |
1532 | list_for_each_entry_safe_continue(w, n, list, |
1533 | power_list); | |
163cac06 | 1534 | |
b22ead2a | 1535 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1536 | ret = w->event(w, |
1537 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1538 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1539 | ret = w->event(w, |
1540 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1541 | break; |
1542 | ||
b22ead2a | 1543 | default: |
81628103 MB |
1544 | /* Queue it up for application */ |
1545 | cur_sort = sort[w->id]; | |
20e4859d | 1546 | cur_subseq = w->subseq; |
81628103 | 1547 | cur_reg = w->reg; |
7be31be8 | 1548 | cur_dapm = w->dapm; |
81628103 MB |
1549 | list_move(&w->power_list, &pending); |
1550 | break; | |
163cac06 | 1551 | } |
b22ead2a MB |
1552 | |
1553 | if (ret < 0) | |
f7d41ae8 | 1554 | dev_err(w->dapm->dev, |
30a6a1a4 | 1555 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1556 | } |
b22ead2a MB |
1557 | |
1558 | if (!list_empty(&pending)) | |
95dd5cd6 | 1559 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1560 | |
1561 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1562 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1563 | if (sort[i] == cur_sort) | |
1564 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1565 | i, cur_subseq); |
474b62d6 | 1566 | } |
eb270e98 MB |
1567 | |
1568 | list_for_each_entry(d, &card->dapm_list, list) { | |
1569 | soc_dapm_async_complete(d); | |
1570 | } | |
42aa3418 MB |
1571 | } |
1572 | ||
95dd5cd6 | 1573 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1574 | { |
95dd5cd6 | 1575 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1576 | struct snd_soc_dapm_widget_list *wlist; |
1577 | struct snd_soc_dapm_widget *w = NULL; | |
1578 | unsigned int wi; | |
97404f2e MB |
1579 | int ret; |
1580 | ||
57295073 | 1581 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1582 | return; |
1583 | ||
e84357f7 | 1584 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1585 | |
ce6cfaf1 LPC |
1586 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1587 | w = wlist->widgets[wi]; | |
1588 | ||
1589 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1590 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1591 | if (ret != 0) | |
95dd5cd6 | 1592 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1593 | w->name, ret); |
1594 | } | |
97404f2e MB |
1595 | } |
1596 | ||
ce6cfaf1 LPC |
1597 | if (!w) |
1598 | return; | |
1599 | ||
ce0fc93a LPC |
1600 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1601 | update->val); | |
97404f2e | 1602 | if (ret < 0) |
95dd5cd6 | 1603 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1604 | w->name, ret); |
97404f2e | 1605 | |
ce6cfaf1 LPC |
1606 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1607 | w = wlist->widgets[wi]; | |
1608 | ||
1609 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1610 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1611 | if (ret != 0) | |
95dd5cd6 | 1612 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1613 | w->name, ret); |
1614 | } | |
97404f2e MB |
1615 | } |
1616 | } | |
1617 | ||
9d0624a7 MB |
1618 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1619 | * they're changing state. | |
1620 | */ | |
1621 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1622 | { | |
1623 | struct snd_soc_dapm_context *d = data; | |
1624 | int ret; | |
1625 | ||
56fba41f MB |
1626 | /* If we're off and we're not supposed to be go into STANDBY */ |
1627 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1628 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1629 | if (d->dev) |
1630 | pm_runtime_get_sync(d->dev); | |
1631 | ||
9d0624a7 MB |
1632 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1633 | if (ret != 0) | |
1634 | dev_err(d->dev, | |
30a6a1a4 | 1635 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1636 | } |
1637 | ||
ce85a4d7 LPC |
1638 | /* Prepare for a transition to ON or away from ON */ |
1639 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1640 | d->bias_level != SND_SOC_BIAS_ON) || | |
1641 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1642 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1643 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1644 | if (ret != 0) | |
1645 | dev_err(d->dev, | |
30a6a1a4 | 1646 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1647 | } |
1648 | } | |
1649 | ||
1650 | /* Async callback run prior to DAPM sequences - brings to their final | |
1651 | * state. | |
1652 | */ | |
1653 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1654 | { | |
1655 | struct snd_soc_dapm_context *d = data; | |
1656 | int ret; | |
1657 | ||
1658 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1659 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1660 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1661 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1662 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1663 | if (ret != 0) | |
30a6a1a4 | 1664 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1665 | ret); |
1666 | } | |
97404f2e | 1667 | |
9d0624a7 | 1668 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1669 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1670 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1671 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1672 | if (ret != 0) | |
30a6a1a4 LG |
1673 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1674 | ret); | |
f1aac484 MB |
1675 | |
1676 | if (d->dev) | |
fb644e9c | 1677 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1678 | } |
1679 | ||
1680 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1681 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1682 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1683 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1684 | if (ret != 0) | |
30a6a1a4 | 1685 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1686 | ret); |
1687 | } | |
1688 | } | |
97404f2e | 1689 | |
fe4fda5d MB |
1690 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1691 | bool power, bool connect) | |
1692 | { | |
1693 | /* If a connection is being made or broken then that update | |
1694 | * will have marked the peer dirty, otherwise the widgets are | |
1695 | * not connected and this update has no impact. */ | |
1696 | if (!connect) | |
1697 | return; | |
1698 | ||
1699 | /* If the peer is already in the state we're moving to then we | |
1700 | * won't have an impact on it. */ | |
1701 | if (power != peer->power) | |
75c1f891 | 1702 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1703 | } |
1704 | ||
05623c43 MB |
1705 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1706 | struct list_head *up_list, | |
1707 | struct list_head *down_list) | |
1708 | { | |
db432b41 MB |
1709 | struct snd_soc_dapm_path *path; |
1710 | ||
05623c43 MB |
1711 | if (w->power == power) |
1712 | return; | |
1713 | ||
1714 | trace_snd_soc_dapm_widget_power(w, power); | |
1715 | ||
db432b41 | 1716 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1717 | * also. |
db432b41 | 1718 | */ |
7ddd4cd5 LPC |
1719 | list_for_each_entry(path, &w->sources, list_sink) |
1720 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1721 | ||
6dd98b0a LPC |
1722 | /* Supplies can't affect their outputs, only their inputs */ |
1723 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1724 | list_for_each_entry(path, &w->sinks, list_source) |
1725 | dapm_widget_set_peer_power(path->sink, power, | |
1726 | path->connect); | |
db432b41 MB |
1727 | } |
1728 | ||
05623c43 MB |
1729 | if (power) |
1730 | dapm_seq_insert(w, up_list, true); | |
1731 | else | |
1732 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1733 | } |
1734 | ||
7c81beb0 MB |
1735 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1736 | struct list_head *up_list, | |
1737 | struct list_head *down_list) | |
1738 | { | |
7c81beb0 MB |
1739 | int power; |
1740 | ||
1741 | switch (w->id) { | |
1742 | case snd_soc_dapm_pre: | |
1743 | dapm_seq_insert(w, down_list, false); | |
1744 | break; | |
1745 | case snd_soc_dapm_post: | |
1746 | dapm_seq_insert(w, up_list, true); | |
1747 | break; | |
1748 | ||
1749 | default: | |
d805002b | 1750 | power = dapm_widget_power_check(w); |
7c81beb0 | 1751 | |
05623c43 | 1752 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1753 | break; |
1754 | } | |
1755 | } | |
1756 | ||
86dbf2ac LPC |
1757 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1758 | { | |
1759 | if (dapm->idle_bias_off) | |
1760 | return true; | |
1761 | ||
1762 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1763 | case SNDRV_CTL_POWER_D3hot: | |
1764 | case SNDRV_CTL_POWER_D3cold: | |
1765 | return dapm->suspend_bias_off; | |
1766 | default: | |
1767 | break; | |
1768 | } | |
1769 | ||
1770 | return false; | |
1771 | } | |
1772 | ||
2b97eabc RP |
1773 | /* |
1774 | * Scan each dapm widget for complete audio path. | |
1775 | * A complete path is a route that has valid endpoints i.e.:- | |
1776 | * | |
1777 | * o DAC to output pin. | |
1778 | * o Input Pin to ADC. | |
1779 | * o Input pin to Output pin (bypass, sidetone) | |
1780 | * o DAC to ADC (loopback). | |
1781 | */ | |
95dd5cd6 | 1782 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1783 | { |
1784 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1785 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1786 | LIST_HEAD(up_list); |
1787 | LIST_HEAD(down_list); | |
2955b47d | 1788 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1789 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1790 | |
f9fa2b18 MB |
1791 | lockdep_assert_held(&card->dapm_mutex); |
1792 | ||
84e90930 MB |
1793 | trace_snd_soc_dapm_start(card); |
1794 | ||
56fba41f | 1795 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1796 | if (dapm_idle_bias_off(d)) |
497098be MB |
1797 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1798 | else | |
1799 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1800 | } |
7be31be8 | 1801 | |
6c120e19 | 1802 | dapm_reset(card); |
9b8a83b2 | 1803 | |
6d3ddc81 | 1804 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1805 | * lists indicating if they should be powered up or down. We |
1806 | * only check widgets that have been flagged as dirty but note | |
1807 | * that new widgets may be added to the dirty list while we | |
1808 | * iterate. | |
6d3ddc81 | 1809 | */ |
db432b41 | 1810 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1811 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1812 | } |
1813 | ||
f9de6d74 | 1814 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1815 | switch (w->id) { |
1816 | case snd_soc_dapm_pre: | |
1817 | case snd_soc_dapm_post: | |
1818 | /* These widgets always need to be powered */ | |
1819 | break; | |
1820 | default: | |
1821 | list_del_init(&w->dirty); | |
1822 | break; | |
1823 | } | |
db432b41 | 1824 | |
39eb5fd1 | 1825 | if (w->new_power) { |
f9de6d74 MB |
1826 | d = w->dapm; |
1827 | ||
1828 | /* Supplies and micbiases only bring the | |
1829 | * context up to STANDBY as unless something | |
1830 | * else is active and passing audio they | |
afe62367 MB |
1831 | * generally don't require full power. Signal |
1832 | * generators are virtual pins and have no | |
1833 | * power impact themselves. | |
f9de6d74 MB |
1834 | */ |
1835 | switch (w->id) { | |
afe62367 | 1836 | case snd_soc_dapm_siggen: |
da83fea6 | 1837 | case snd_soc_dapm_vmid: |
afe62367 | 1838 | break; |
f9de6d74 | 1839 | case snd_soc_dapm_supply: |
62ea874a | 1840 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1841 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1842 | case snd_soc_dapm_micbias: |
1843 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1844 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1845 | break; | |
1846 | default: | |
1847 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1848 | break; | |
1849 | } | |
1850 | } | |
1851 | ||
1852 | } | |
1853 | ||
85a843c5 MB |
1854 | /* Force all contexts in the card to the same bias state if |
1855 | * they're not ground referenced. | |
1856 | */ | |
56fba41f | 1857 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1858 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1859 | if (d->target_bias_level > bias) |
1860 | bias = d->target_bias_level; | |
52ba67bf | 1861 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1862 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1863 | d->target_bias_level = bias; |
52ba67bf | 1864 | |
de02d078 | 1865 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1866 | |
17282ba4 XX |
1867 | /* Run card bias changes at first */ |
1868 | dapm_pre_sequence_async(&card->dapm, 0); | |
1869 | /* Run other bias changes in parallel */ | |
1870 | list_for_each_entry(d, &card->dapm_list, list) { | |
1871 | if (d != &card->dapm) | |
1872 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1873 | &async_domain); | |
1874 | } | |
9d0624a7 | 1875 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1876 | |
cf1f7c6e | 1877 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1878 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1879 | } |
1880 | ||
cf1f7c6e | 1881 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1882 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1883 | } |
1884 | ||
6d3ddc81 | 1885 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1886 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1887 | |
95dd5cd6 | 1888 | dapm_widget_update(card); |
97404f2e | 1889 | |
6d3ddc81 | 1890 | /* Now power up. */ |
95dd5cd6 | 1891 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1892 | |
9d0624a7 | 1893 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1894 | list_for_each_entry(d, &card->dapm_list, list) { |
1895 | if (d != &card->dapm) | |
1896 | async_schedule_domain(dapm_post_sequence_async, d, | |
1897 | &async_domain); | |
1898 | } | |
9d0624a7 | 1899 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1900 | /* Run card bias changes at last */ |
1901 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1902 | |
8078d87f LG |
1903 | /* do we need to notify any clients that DAPM event is complete */ |
1904 | list_for_each_entry(d, &card->dapm_list, list) { | |
1905 | if (d->stream_event) | |
1906 | d->stream_event(d, event); | |
1907 | } | |
1908 | ||
95dd5cd6 | 1909 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1910 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1911 | pop_wait(card->pop_time); |
cb507e7e | 1912 | |
84e90930 MB |
1913 | trace_snd_soc_dapm_done(card); |
1914 | ||
42aa3418 | 1915 | return 0; |
2b97eabc RP |
1916 | } |
1917 | ||
79fb9387 | 1918 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1919 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1920 | char __user *user_buf, | |
1921 | size_t count, loff_t *ppos) | |
1922 | { | |
1923 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1924 | struct snd_soc_card *card = w->dapm->card; |
79fb9387 MB |
1925 | char *buf; |
1926 | int in, out; | |
1927 | ssize_t ret; | |
1928 | struct snd_soc_dapm_path *p = NULL; | |
1929 | ||
1930 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1931 | if (!buf) | |
1932 | return -ENOMEM; | |
1933 | ||
e50b1e06 LPC |
1934 | mutex_lock(&card->dapm_mutex); |
1935 | ||
c1862c8b LPC |
1936 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1937 | if (w->is_supply) { | |
1938 | in = 0; | |
1939 | out = 0; | |
1940 | } else { | |
1941 | in = is_connected_input_ep(w, NULL); | |
1942 | out = is_connected_output_ep(w, NULL); | |
1943 | } | |
79fb9387 | 1944 | |
f13ebada MB |
1945 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1946 | w->name, w->power ? "On" : "Off", | |
1947 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1948 | |
d033c36a MB |
1949 | if (w->reg >= 0) |
1950 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1951 | " - R%d(0x%x) mask 0x%x", |
1952 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1953 | |
1954 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1955 | ||
3eef08ba MB |
1956 | if (w->sname) |
1957 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1958 | w->sname, | |
1959 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1960 | |
1961 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1962 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1963 | continue; |
1964 | ||
79fb9387 MB |
1965 | if (p->connect) |
1966 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1967 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1968 | p->name ? p->name : "static", |
1969 | p->source->name); | |
1970 | } | |
1971 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1972 | if (p->connected && !p->connected(w, p->sink)) |
1973 | continue; | |
1974 | ||
79fb9387 MB |
1975 | if (p->connect) |
1976 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1977 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1978 | p->name ? p->name : "static", |
1979 | p->sink->name); | |
1980 | } | |
1981 | ||
e50b1e06 LPC |
1982 | mutex_unlock(&card->dapm_mutex); |
1983 | ||
79fb9387 MB |
1984 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
1985 | ||
1986 | kfree(buf); | |
1987 | return ret; | |
1988 | } | |
1989 | ||
1990 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1991 | .open = simple_open, |
79fb9387 | 1992 | .read = dapm_widget_power_read_file, |
6038f373 | 1993 | .llseek = default_llseek, |
79fb9387 MB |
1994 | }; |
1995 | ||
ef49e4fa MB |
1996 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1997 | size_t count, loff_t *ppos) | |
1998 | { | |
1999 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2000 | char *level; | |
2001 | ||
2002 | switch (dapm->bias_level) { | |
2003 | case SND_SOC_BIAS_ON: | |
2004 | level = "On\n"; | |
2005 | break; | |
2006 | case SND_SOC_BIAS_PREPARE: | |
2007 | level = "Prepare\n"; | |
2008 | break; | |
2009 | case SND_SOC_BIAS_STANDBY: | |
2010 | level = "Standby\n"; | |
2011 | break; | |
2012 | case SND_SOC_BIAS_OFF: | |
2013 | level = "Off\n"; | |
2014 | break; | |
2015 | default: | |
a6ed0608 | 2016 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2017 | level = "Unknown\n"; |
2018 | break; | |
2019 | } | |
2020 | ||
2021 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2022 | strlen(level)); | |
2023 | } | |
2024 | ||
2025 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2026 | .open = simple_open, |
ef49e4fa MB |
2027 | .read = dapm_bias_read_file, |
2028 | .llseek = default_llseek, | |
2029 | }; | |
2030 | ||
8eecaf62 LPC |
2031 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2032 | struct dentry *parent) | |
79fb9387 | 2033 | { |
79fb9387 MB |
2034 | struct dentry *d; |
2035 | ||
6553bf06 LPC |
2036 | if (!parent) |
2037 | return; | |
2038 | ||
8eecaf62 LPC |
2039 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2040 | ||
2041 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2042 | dev_warn(dapm->dev, |
30a6a1a4 | 2043 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2044 | return; |
8eecaf62 | 2045 | } |
79fb9387 | 2046 | |
ef49e4fa MB |
2047 | d = debugfs_create_file("bias_level", 0444, |
2048 | dapm->debugfs_dapm, dapm, | |
2049 | &dapm_bias_fops); | |
2050 | if (!d) | |
2051 | dev_warn(dapm->dev, | |
2052 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2053 | } |
ef49e4fa | 2054 | |
d5d1e0be LPC |
2055 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2056 | { | |
2057 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2058 | struct dentry *d; | |
79fb9387 | 2059 | |
d5d1e0be LPC |
2060 | if (!dapm->debugfs_dapm || !w->name) |
2061 | return; | |
2062 | ||
2063 | d = debugfs_create_file(w->name, 0444, | |
2064 | dapm->debugfs_dapm, w, | |
2065 | &dapm_widget_power_fops); | |
2066 | if (!d) | |
2067 | dev_warn(w->dapm->dev, | |
2068 | "ASoC: Failed to create %s debugfs file\n", | |
2069 | w->name); | |
79fb9387 | 2070 | } |
d5d1e0be | 2071 | |
6c45e126 LPC |
2072 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2073 | { | |
2074 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2075 | } | |
2076 | ||
79fb9387 | 2077 | #else |
8eecaf62 LPC |
2078 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2079 | struct dentry *parent) | |
79fb9387 MB |
2080 | { |
2081 | } | |
d5d1e0be LPC |
2082 | |
2083 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2084 | { | |
2085 | } | |
2086 | ||
6c45e126 LPC |
2087 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2088 | { | |
2089 | } | |
2090 | ||
79fb9387 MB |
2091 | #endif |
2092 | ||
4a201948 LPC |
2093 | /* |
2094 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2095 | * @path: The path to update | |
2096 | * @connect: The new connect state of the path. True if the path is connected, | |
2097 | * false if it is disconneted. | |
2098 | * @reason: The reason why the path changed (for debugging only) | |
2099 | */ | |
2100 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2101 | bool connect, const char *reason) | |
2102 | { | |
2103 | if (path->connect == connect) | |
2104 | return; | |
2105 | ||
2106 | path->connect = connect; | |
2107 | dapm_mark_dirty(path->source, reason); | |
2108 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2109 | dapm_path_invalidate(path); |
4a201948 LPC |
2110 | } |
2111 | ||
2b97eabc | 2112 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2113 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2114 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2115 | { |
2116 | struct snd_soc_dapm_path *path; | |
2117 | int found = 0; | |
4a201948 | 2118 | bool connect; |
2b97eabc | 2119 | |
f9fa2b18 MB |
2120 | lockdep_assert_held(&card->dapm_mutex); |
2121 | ||
2b97eabc | 2122 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2123 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2124 | found = 1; |
2125 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2126 | if (!(strcmp(path->name, e->texts[mux]))) |
2127 | connect = true; | |
2128 | else | |
2129 | connect = false; | |
2130 | ||
2131 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2132 | } |
2133 | ||
ce6cfaf1 | 2134 | if (found) |
95dd5cd6 | 2135 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2136 | |
618dae11 | 2137 | return found; |
2b97eabc | 2138 | } |
4edbb345 | 2139 | |
ce6cfaf1 | 2140 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2141 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2142 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2143 | { |
ce6cfaf1 | 2144 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2145 | int ret; |
2146 | ||
3cd04343 | 2147 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2148 | card->update = update; |
95dd5cd6 | 2149 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2150 | card->update = NULL; |
4edbb345 | 2151 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2152 | if (ret > 0) |
c3f48ae6 | 2153 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2154 | return ret; |
2155 | } | |
40f02cd9 | 2156 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2157 | |
1b075e3f | 2158 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2159 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2160 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2161 | { |
2162 | struct snd_soc_dapm_path *path; | |
2163 | int found = 0; | |
2164 | ||
f9fa2b18 MB |
2165 | lockdep_assert_held(&card->dapm_mutex); |
2166 | ||
2b97eabc | 2167 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2168 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2169 | found = 1; |
4a201948 | 2170 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2171 | } |
2172 | ||
ce6cfaf1 | 2173 | if (found) |
95dd5cd6 | 2174 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2175 | |
618dae11 | 2176 | return found; |
2b97eabc | 2177 | } |
4edbb345 | 2178 | |
ce6cfaf1 | 2179 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2180 | struct snd_kcontrol *kcontrol, int connect, |
2181 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2182 | { |
ce6cfaf1 | 2183 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2184 | int ret; |
2185 | ||
3cd04343 | 2186 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2187 | card->update = update; |
95dd5cd6 | 2188 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2189 | card->update = NULL; |
4edbb345 | 2190 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2191 | if (ret > 0) |
c3f48ae6 | 2192 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2193 | return ret; |
2194 | } | |
40f02cd9 | 2195 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2196 | |
44ba2641 | 2197 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2198 | { |
2b97eabc RP |
2199 | struct snd_soc_dapm_widget *w; |
2200 | int count = 0; | |
2201 | char *state = "not set"; | |
2202 | ||
00200107 | 2203 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2204 | if (w->dapm != &codec->dapm) |
2205 | continue; | |
2b97eabc RP |
2206 | |
2207 | /* only display widgets that burnm power */ | |
2208 | switch (w->id) { | |
2209 | case snd_soc_dapm_hp: | |
2210 | case snd_soc_dapm_mic: | |
2211 | case snd_soc_dapm_spk: | |
2212 | case snd_soc_dapm_line: | |
2213 | case snd_soc_dapm_micbias: | |
2214 | case snd_soc_dapm_dac: | |
2215 | case snd_soc_dapm_adc: | |
2216 | case snd_soc_dapm_pga: | |
d88429a6 | 2217 | case snd_soc_dapm_out_drv: |
2b97eabc | 2218 | case snd_soc_dapm_mixer: |
ca9c1aae | 2219 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2220 | case snd_soc_dapm_supply: |
62ea874a | 2221 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2222 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2223 | if (w->name) |
2224 | count += sprintf(buf + count, "%s: %s\n", | |
2225 | w->name, w->power ? "On":"Off"); | |
2226 | break; | |
2227 | default: | |
2228 | break; | |
2229 | } | |
2230 | } | |
2231 | ||
ce6120cc | 2232 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2233 | case SND_SOC_BIAS_ON: |
2234 | state = "On"; | |
2b97eabc | 2235 | break; |
0be9898a MB |
2236 | case SND_SOC_BIAS_PREPARE: |
2237 | state = "Prepare"; | |
2b97eabc | 2238 | break; |
0be9898a MB |
2239 | case SND_SOC_BIAS_STANDBY: |
2240 | state = "Standby"; | |
2b97eabc | 2241 | break; |
0be9898a MB |
2242 | case SND_SOC_BIAS_OFF: |
2243 | state = "Off"; | |
2b97eabc RP |
2244 | break; |
2245 | } | |
2246 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2247 | ||
2248 | return count; | |
2249 | } | |
2250 | ||
44ba2641 BC |
2251 | /* show dapm widget status in sys fs */ |
2252 | static ssize_t dapm_widget_show(struct device *dev, | |
2253 | struct device_attribute *attr, char *buf) | |
2254 | { | |
2255 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2256 | int i, count = 0; | |
2257 | ||
e50b1e06 LPC |
2258 | mutex_lock(&rtd->card->dapm_mutex); |
2259 | ||
44ba2641 BC |
2260 | for (i = 0; i < rtd->num_codecs; i++) { |
2261 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2262 | count += dapm_widget_show_codec(codec, buf + count); | |
2263 | } | |
2264 | ||
e50b1e06 LPC |
2265 | mutex_unlock(&rtd->card->dapm_mutex); |
2266 | ||
44ba2641 BC |
2267 | return count; |
2268 | } | |
2269 | ||
2b97eabc RP |
2270 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2271 | ||
d29697dc TI |
2272 | struct attribute *soc_dapm_dev_attrs[] = { |
2273 | &dev_attr_dapm_widget.attr, | |
2274 | NULL | |
2275 | }; | |
2b97eabc | 2276 | |
8872293f LPC |
2277 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2278 | { | |
2279 | list_del(&path->list_sink); | |
2280 | list_del(&path->list_source); | |
5106b92f | 2281 | list_del(&path->list_kcontrol); |
8872293f | 2282 | list_del(&path->list); |
8872293f LPC |
2283 | kfree(path); |
2284 | } | |
2285 | ||
b97e2698 LPC |
2286 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2287 | { | |
2288 | struct snd_soc_dapm_path *p, *next_p; | |
2289 | ||
2290 | list_del(&w->list); | |
2291 | /* | |
2292 | * remove source and sink paths associated to this widget. | |
2293 | * While removing the path, remove reference to it from both | |
2294 | * source and sink widgets so that path is removed only once. | |
2295 | */ | |
2296 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) | |
2297 | dapm_free_path(p); | |
2298 | ||
2299 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2300 | dapm_free_path(p); | |
2301 | ||
2302 | kfree(w->kcontrols); | |
48068961 | 2303 | kfree_const(w->name); |
b97e2698 LPC |
2304 | kfree(w); |
2305 | } | |
2306 | ||
2b97eabc | 2307 | /* free all dapm widgets and resources */ |
ce6120cc | 2308 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2309 | { |
2310 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2311 | |
97c866de JN |
2312 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2313 | if (w->dapm != dapm) | |
2314 | continue; | |
b97e2698 | 2315 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2316 | } |
2b97eabc RP |
2317 | } |
2318 | ||
91a5fca4 LPC |
2319 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2320 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2321 | bool search_other_contexts) | |
a5302181 LG |
2322 | { |
2323 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2324 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2325 | |
97c866de | 2326 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2327 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2328 | if (w->dapm == dapm) |
2329 | return w; | |
2330 | else | |
2331 | fallback = w; | |
a5302181 LG |
2332 | } |
2333 | } | |
2334 | ||
91a5fca4 LPC |
2335 | if (search_other_contexts) |
2336 | return fallback; | |
2337 | ||
2338 | return NULL; | |
2339 | } | |
2340 | ||
2341 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2342 | const char *pin, int status) | |
2343 | { | |
2344 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2345 | ||
f9fa2b18 MB |
2346 | dapm_assert_locked(dapm); |
2347 | ||
91a5fca4 | 2348 | if (!w) { |
30a6a1a4 | 2349 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2350 | return -EINVAL; |
0d86733c MB |
2351 | } |
2352 | ||
92a99ea4 | 2353 | if (w->connected != status) { |
1a8b2d9d | 2354 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2355 | dapm_widget_invalidate_input_paths(w); |
2356 | dapm_widget_invalidate_output_paths(w); | |
2357 | } | |
1a8b2d9d | 2358 | |
91a5fca4 LPC |
2359 | w->connected = status; |
2360 | if (status == 0) | |
2361 | w->force = 0; | |
2362 | ||
2363 | return 0; | |
a5302181 LG |
2364 | } |
2365 | ||
2b97eabc | 2366 | /** |
3eb29dfb | 2367 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2368 | * @dapm: DAPM context |
2b97eabc RP |
2369 | * |
2370 | * Walks all dapm audio paths and powers widgets according to their | |
2371 | * stream or path usage. | |
2372 | * | |
3eb29dfb CK |
2373 | * Requires external locking. |
2374 | * | |
2b97eabc RP |
2375 | * Returns 0 for success. |
2376 | */ | |
3eb29dfb | 2377 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2378 | { |
4f4c0072 MB |
2379 | /* |
2380 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2381 | * silly DAPM runs during card startup. | |
2382 | */ | |
2383 | if (!dapm->card || !dapm->card->instantiated) | |
2384 | return 0; | |
2385 | ||
3eb29dfb CK |
2386 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2387 | } | |
2388 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2389 | ||
2390 | /** | |
2391 | * snd_soc_dapm_sync - scan and power dapm paths | |
2392 | * @dapm: DAPM context | |
2393 | * | |
2394 | * Walks all dapm audio paths and powers widgets according to their | |
2395 | * stream or path usage. | |
2396 | * | |
2397 | * Returns 0 for success. | |
2398 | */ | |
2399 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2400 | { | |
2401 | int ret; | |
2402 | ||
3cd04343 | 2403 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2404 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2405 | mutex_unlock(&dapm->card->dapm_mutex); |
2406 | return ret; | |
2b97eabc | 2407 | } |
a5302181 | 2408 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2409 | |
6dd98b0a LPC |
2410 | /* |
2411 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2412 | * @w: The widget for which to update the flags | |
2413 | * | |
2414 | * Some widgets have a dynamic category which depends on which neighbors they | |
2415 | * are connected to. This function update the category for these widgets. | |
2416 | * | |
2417 | * This function must be called whenever a path is added or removed to a widget. | |
2418 | */ | |
2419 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2420 | { | |
2421 | struct snd_soc_dapm_path *p; | |
2422 | ||
2423 | switch (w->id) { | |
2424 | case snd_soc_dapm_input: | |
86d75003 LPC |
2425 | /* On a fully routed card a input is never a source */ |
2426 | if (w->dapm->card->fully_routed) | |
2427 | break; | |
6dd98b0a LPC |
2428 | w->is_source = 1; |
2429 | list_for_each_entry(p, &w->sources, list_sink) { | |
2430 | if (p->source->id == snd_soc_dapm_micbias || | |
2431 | p->source->id == snd_soc_dapm_mic || | |
2432 | p->source->id == snd_soc_dapm_line || | |
2433 | p->source->id == snd_soc_dapm_output) { | |
2434 | w->is_source = 0; | |
2435 | break; | |
2436 | } | |
2437 | } | |
2438 | break; | |
2439 | case snd_soc_dapm_output: | |
86d75003 LPC |
2440 | /* On a fully routed card a output is never a sink */ |
2441 | if (w->dapm->card->fully_routed) | |
2442 | break; | |
6dd98b0a LPC |
2443 | w->is_sink = 1; |
2444 | list_for_each_entry(p, &w->sinks, list_source) { | |
2445 | if (p->sink->id == snd_soc_dapm_spk || | |
2446 | p->sink->id == snd_soc_dapm_hp || | |
2447 | p->sink->id == snd_soc_dapm_line || | |
2448 | p->sink->id == snd_soc_dapm_input) { | |
2449 | w->is_sink = 0; | |
2450 | break; | |
2451 | } | |
2452 | } | |
2453 | break; | |
2454 | case snd_soc_dapm_line: | |
2455 | w->is_sink = !list_empty(&w->sources); | |
2456 | w->is_source = !list_empty(&w->sinks); | |
2457 | break; | |
2458 | default: | |
2459 | break; | |
2460 | } | |
2461 | } | |
2462 | ||
d714f97c LPC |
2463 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2464 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2465 | const char *control) | |
2466 | { | |
2467 | bool dynamic_source = false; | |
2468 | bool dynamic_sink = false; | |
2469 | ||
2470 | if (!control) | |
2471 | return 0; | |
2472 | ||
2473 | switch (source->id) { | |
2474 | case snd_soc_dapm_demux: | |
2475 | dynamic_source = true; | |
2476 | break; | |
2477 | default: | |
2478 | break; | |
2479 | } | |
2480 | ||
2481 | switch (sink->id) { | |
2482 | case snd_soc_dapm_mux: | |
2483 | case snd_soc_dapm_switch: | |
2484 | case snd_soc_dapm_mixer: | |
2485 | case snd_soc_dapm_mixer_named_ctl: | |
2486 | dynamic_sink = true; | |
2487 | break; | |
2488 | default: | |
2489 | break; | |
2490 | } | |
2491 | ||
2492 | if (dynamic_source && dynamic_sink) { | |
2493 | dev_err(dapm->dev, | |
2494 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2495 | source->name, control, sink->name); | |
2496 | return -EINVAL; | |
2497 | } else if (!dynamic_source && !dynamic_sink) { | |
2498 | dev_err(dapm->dev, | |
2499 | "Control not supported for path %s -> [%s] -> %s\n", | |
2500 | source->name, control, sink->name); | |
2501 | return -EINVAL; | |
2502 | } | |
2503 | ||
2504 | return 0; | |
2505 | } | |
2506 | ||
2553628e LPC |
2507 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2508 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2509 | const char *control, | |
2510 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2511 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2512 | { |
2513 | struct snd_soc_dapm_path *path; | |
2553628e | 2514 | int ret; |
2b97eabc | 2515 | |
e409dfbf LPC |
2516 | if (wsink->is_supply && !wsource->is_supply) { |
2517 | dev_err(dapm->dev, | |
2518 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2519 | wsource->name, wsink->name); | |
2520 | return -EINVAL; | |
2521 | } | |
2522 | ||
2523 | if (connected && !wsource->is_supply) { | |
2524 | dev_err(dapm->dev, | |
2525 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2526 | wsource->name, wsink->name); | |
2527 | return -EINVAL; | |
2528 | } | |
2529 | ||
2530 | if (wsource->is_supply && control) { | |
2531 | dev_err(dapm->dev, | |
2532 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2533 | wsource->name, control, wsink->name); | |
2534 | return -EINVAL; | |
2535 | } | |
2536 | ||
d714f97c LPC |
2537 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2538 | if (ret) | |
2539 | return ret; | |
2540 | ||
2b97eabc RP |
2541 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2542 | if (!path) | |
2543 | return -ENOMEM; | |
2544 | ||
2545 | path->source = wsource; | |
2546 | path->sink = wsink; | |
2553628e | 2547 | path->connected = connected; |
2b97eabc | 2548 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2549 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2550 | INIT_LIST_HEAD(&path->list_source); |
2551 | INIT_LIST_HEAD(&path->list_sink); | |
2552 | ||
c1862c8b LPC |
2553 | if (wsource->is_supply || wsink->is_supply) |
2554 | path->is_supply = 1; | |
2555 | ||
2b97eabc RP |
2556 | /* connect static paths */ |
2557 | if (control == NULL) { | |
2b97eabc | 2558 | path->connect = 1; |
5fe5b767 | 2559 | } else { |
d714f97c LPC |
2560 | switch (wsource->id) { |
2561 | case snd_soc_dapm_demux: | |
2562 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2563 | if (ret) | |
2564 | goto err; | |
2565 | break; | |
2566 | default: | |
2567 | break; | |
2568 | } | |
2569 | ||
5fe5b767 LPC |
2570 | switch (wsink->id) { |
2571 | case snd_soc_dapm_mux: | |
d714f97c | 2572 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2573 | if (ret != 0) |
2574 | goto err; | |
2575 | break; | |
2576 | case snd_soc_dapm_switch: | |
2577 | case snd_soc_dapm_mixer: | |
2578 | case snd_soc_dapm_mixer_named_ctl: | |
2579 | ret = dapm_connect_mixer(dapm, path, control); | |
2580 | if (ret != 0) | |
2581 | goto err; | |
2582 | break; | |
2583 | default: | |
d714f97c | 2584 | break; |
5fe5b767 | 2585 | } |
2b97eabc | 2586 | } |
fabd0384 | 2587 | |
5fe5b767 LPC |
2588 | list_add(&path->list, &dapm->card->paths); |
2589 | list_add(&path->list_sink, &wsink->sources); | |
2590 | list_add(&path->list_source, &wsource->sinks); | |
2591 | ||
6dd98b0a LPC |
2592 | dapm_update_widget_flags(wsource); |
2593 | dapm_update_widget_flags(wsink); | |
2594 | ||
5fe5b767 LPC |
2595 | dapm_mark_dirty(wsource, "Route added"); |
2596 | dapm_mark_dirty(wsink, "Route added"); | |
2597 | ||
92a99ea4 LPC |
2598 | if (dapm->card->instantiated && path->connect) |
2599 | dapm_path_invalidate(path); | |
2600 | ||
2b97eabc | 2601 | return 0; |
2553628e LPC |
2602 | err: |
2603 | kfree(path); | |
2604 | return ret; | |
2605 | } | |
2b97eabc | 2606 | |
2553628e | 2607 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2608 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2609 | { |
2610 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2611 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2612 | const char *sink; | |
2613 | const char *source; | |
2614 | char prefixed_sink[80]; | |
2615 | char prefixed_source[80]; | |
94f99c87 | 2616 | const char *prefix; |
2553628e LPC |
2617 | int ret; |
2618 | ||
94f99c87 LPC |
2619 | prefix = soc_dapm_prefix(dapm); |
2620 | if (prefix) { | |
2553628e | 2621 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2622 | prefix, route->sink); |
2553628e LPC |
2623 | sink = prefixed_sink; |
2624 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2625 | prefix, route->source); |
2553628e LPC |
2626 | source = prefixed_source; |
2627 | } else { | |
2628 | sink = route->sink; | |
2629 | source = route->source; | |
2630 | } | |
2631 | ||
45a110a1 CK |
2632 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2633 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2634 | ||
2635 | if (wsink && wsource) | |
2636 | goto skip_search; | |
2637 | ||
2553628e LPC |
2638 | /* |
2639 | * find src and dest widgets over all widgets but favor a widget from | |
2640 | * current DAPM context | |
2641 | */ | |
2642 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2643 | if (!wsink && !(strcmp(w->name, sink))) { | |
2644 | wtsink = w; | |
70c75109 | 2645 | if (w->dapm == dapm) { |
2553628e | 2646 | wsink = w; |
70c75109 CK |
2647 | if (wsource) |
2648 | break; | |
2649 | } | |
2553628e LPC |
2650 | continue; |
2651 | } | |
2652 | if (!wsource && !(strcmp(w->name, source))) { | |
2653 | wtsource = w; | |
70c75109 | 2654 | if (w->dapm == dapm) { |
2553628e | 2655 | wsource = w; |
70c75109 CK |
2656 | if (wsink) |
2657 | break; | |
2658 | } | |
2553628e LPC |
2659 | } |
2660 | } | |
2661 | /* use widget from another DAPM context if not found from this */ | |
2662 | if (!wsink) | |
2663 | wsink = wtsink; | |
2664 | if (!wsource) | |
2665 | wsource = wtsource; | |
2666 | ||
2667 | if (wsource == NULL) { | |
2668 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2669 | route->source); | |
2670 | return -ENODEV; | |
2671 | } | |
2672 | if (wsink == NULL) { | |
2673 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2674 | route->sink); | |
2675 | return -ENODEV; | |
2676 | } | |
2677 | ||
45a110a1 CK |
2678 | skip_search: |
2679 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2680 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2681 | ||
2553628e LPC |
2682 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2683 | route->connected); | |
2684 | if (ret) | |
2685 | goto err; | |
2686 | ||
2687 | return 0; | |
2b97eabc | 2688 | err: |
30a6a1a4 | 2689 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2690 | source, route->control, sink); |
2b97eabc RP |
2691 | return ret; |
2692 | } | |
105f1c28 | 2693 | |
efcc3c61 MB |
2694 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2695 | const struct snd_soc_dapm_route *route) | |
2696 | { | |
6dd98b0a | 2697 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2698 | struct snd_soc_dapm_path *path, *p; |
2699 | const char *sink; | |
2700 | const char *source; | |
2701 | char prefixed_sink[80]; | |
2702 | char prefixed_source[80]; | |
94f99c87 | 2703 | const char *prefix; |
efcc3c61 MB |
2704 | |
2705 | if (route->control) { | |
2706 | dev_err(dapm->dev, | |
30a6a1a4 | 2707 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2708 | return -EINVAL; |
2709 | } | |
2710 | ||
94f99c87 LPC |
2711 | prefix = soc_dapm_prefix(dapm); |
2712 | if (prefix) { | |
efcc3c61 | 2713 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2714 | prefix, route->sink); |
efcc3c61 MB |
2715 | sink = prefixed_sink; |
2716 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2717 | prefix, route->source); |
efcc3c61 MB |
2718 | source = prefixed_source; |
2719 | } else { | |
2720 | sink = route->sink; | |
2721 | source = route->source; | |
2722 | } | |
2723 | ||
2724 | path = NULL; | |
2725 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2726 | if (strcmp(p->source->name, source) != 0) | |
2727 | continue; | |
2728 | if (strcmp(p->sink->name, sink) != 0) | |
2729 | continue; | |
2730 | path = p; | |
2731 | break; | |
2732 | } | |
2733 | ||
2734 | if (path) { | |
6dd98b0a LPC |
2735 | wsource = path->source; |
2736 | wsink = path->sink; | |
2737 | ||
2738 | dapm_mark_dirty(wsource, "Route removed"); | |
2739 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2740 | if (path->connect) |
2741 | dapm_path_invalidate(path); | |
efcc3c61 | 2742 | |
8872293f | 2743 | dapm_free_path(path); |
6dd98b0a LPC |
2744 | |
2745 | /* Update any path related flags */ | |
2746 | dapm_update_widget_flags(wsource); | |
2747 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2748 | } else { |
30a6a1a4 | 2749 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2750 | source, sink); |
2751 | } | |
2752 | ||
2753 | return 0; | |
2754 | } | |
2755 | ||
105f1c28 MB |
2756 | /** |
2757 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2758 | * @dapm: DAPM context |
105f1c28 MB |
2759 | * @route: audio routes |
2760 | * @num: number of routes | |
2761 | * | |
2762 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2763 | * the widget receiving the audio signal, whilst the source is the sender | |
2764 | * of the audio signal. | |
2765 | * | |
2766 | * Returns 0 for success else error. On error all resources can be freed | |
2767 | * with a call to snd_soc_card_free(). | |
2768 | */ | |
ce6120cc | 2769 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2770 | const struct snd_soc_dapm_route *route, int num) |
2771 | { | |
62d4a4b9 | 2772 | int i, r, ret = 0; |
105f1c28 | 2773 | |
a73fb2df | 2774 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2775 | for (i = 0; i < num; i++) { |
a4e9154c | 2776 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2777 | if (r < 0) { |
30a6a1a4 LG |
2778 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2779 | route->source, | |
2780 | route->control ? route->control : "direct", | |
2781 | route->sink); | |
62d4a4b9 | 2782 | ret = r; |
105f1c28 MB |
2783 | } |
2784 | route++; | |
2785 | } | |
a73fb2df | 2786 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2787 | |
60884c27 | 2788 | return ret; |
105f1c28 MB |
2789 | } |
2790 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2791 | ||
efcc3c61 MB |
2792 | /** |
2793 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2794 | * @dapm: DAPM context | |
2795 | * @route: audio routes | |
2796 | * @num: number of routes | |
2797 | * | |
2798 | * Removes routes from the DAPM context. | |
2799 | */ | |
2800 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2801 | const struct snd_soc_dapm_route *route, int num) | |
2802 | { | |
2803 | int i, ret = 0; | |
2804 | ||
2805 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2806 | for (i = 0; i < num; i++) { | |
2807 | snd_soc_dapm_del_route(dapm, route); | |
2808 | route++; | |
2809 | } | |
2810 | mutex_unlock(&dapm->card->dapm_mutex); | |
2811 | ||
2812 | return ret; | |
2813 | } | |
2814 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2815 | ||
bf3a9e13 MB |
2816 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2817 | const struct snd_soc_dapm_route *route) | |
2818 | { | |
2819 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2820 | route->source, | |
2821 | true); | |
2822 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2823 | route->sink, | |
2824 | true); | |
2825 | struct snd_soc_dapm_path *path; | |
2826 | int count = 0; | |
2827 | ||
2828 | if (!source) { | |
30a6a1a4 | 2829 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2830 | route->source); |
2831 | return -ENODEV; | |
2832 | } | |
2833 | ||
2834 | if (!sink) { | |
30a6a1a4 | 2835 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2836 | route->sink); |
2837 | return -ENODEV; | |
2838 | } | |
2839 | ||
2840 | if (route->control || route->connected) | |
30a6a1a4 | 2841 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2842 | route->source, route->sink); |
2843 | ||
2844 | list_for_each_entry(path, &source->sinks, list_source) { | |
2845 | if (path->sink == sink) { | |
2846 | path->weak = 1; | |
2847 | count++; | |
2848 | } | |
2849 | } | |
2850 | ||
2851 | if (count == 0) | |
30a6a1a4 | 2852 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2853 | route->source, route->sink); |
2854 | if (count > 1) | |
30a6a1a4 | 2855 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2856 | count, route->source, route->sink); |
2857 | ||
2858 | return 0; | |
2859 | } | |
2860 | ||
2861 | /** | |
2862 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2863 | * @dapm: DAPM context | |
2864 | * @route: audio routes | |
2865 | * @num: number of routes | |
2866 | * | |
2867 | * Mark existing routes matching those specified in the passed array | |
2868 | * as being weak, meaning that they are ignored for the purpose of | |
2869 | * power decisions. The main intended use case is for sidetone paths | |
2870 | * which couple audio between other independent paths if they are both | |
2871 | * active in order to make the combination work better at the user | |
2872 | * level but which aren't intended to be "used". | |
2873 | * | |
2874 | * Note that CODEC drivers should not use this as sidetone type paths | |
2875 | * can frequently also be used as bypass paths. | |
2876 | */ | |
2877 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2878 | const struct snd_soc_dapm_route *route, int num) | |
2879 | { | |
2880 | int i, err; | |
2881 | int ret = 0; | |
2882 | ||
a73fb2df | 2883 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2884 | for (i = 0; i < num; i++) { |
2885 | err = snd_soc_dapm_weak_route(dapm, route); | |
2886 | if (err) | |
2887 | ret = err; | |
2888 | route++; | |
2889 | } | |
a73fb2df | 2890 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2891 | |
2892 | return ret; | |
2893 | } | |
2894 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2895 | ||
2b97eabc RP |
2896 | /** |
2897 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2898 | * @dapm: DAPM context |
2b97eabc RP |
2899 | * |
2900 | * Checks the codec for any new dapm widgets and creates them if found. | |
2901 | * | |
2902 | * Returns 0 for success. | |
2903 | */ | |
824ef826 | 2904 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2905 | { |
2906 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2907 | unsigned int val; |
2b97eabc | 2908 | |
95dd5cd6 | 2909 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2910 | |
95dd5cd6 | 2911 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2912 | { |
2913 | if (w->new) | |
2914 | continue; | |
2915 | ||
fad59888 SW |
2916 | if (w->num_kcontrols) { |
2917 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2918 | sizeof(struct snd_kcontrol *), | |
2919 | GFP_KERNEL); | |
a73fb2df | 2920 | if (!w->kcontrols) { |
95dd5cd6 | 2921 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2922 | return -ENOMEM; |
a73fb2df | 2923 | } |
fad59888 SW |
2924 | } |
2925 | ||
2b97eabc RP |
2926 | switch(w->id) { |
2927 | case snd_soc_dapm_switch: | |
2928 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2929 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2930 | dapm_new_mixer(w); |
2b97eabc RP |
2931 | break; |
2932 | case snd_soc_dapm_mux: | |
d714f97c | 2933 | case snd_soc_dapm_demux: |
4b80b8c2 | 2934 | dapm_new_mux(w); |
2b97eabc | 2935 | break; |
2b97eabc | 2936 | case snd_soc_dapm_pga: |
d88429a6 | 2937 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2938 | dapm_new_pga(w); |
2b97eabc | 2939 | break; |
c6615082 NO |
2940 | case snd_soc_dapm_dai_link: |
2941 | dapm_new_dai_link(w); | |
2942 | break; | |
7ca3a18b | 2943 | default: |
2b97eabc RP |
2944 | break; |
2945 | } | |
b66a70d5 MB |
2946 | |
2947 | /* Read the initial power state from the device */ | |
2948 | if (w->reg >= 0) { | |
ce0fc93a | 2949 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2950 | val = val >> w->shift; |
de9ba98b LPC |
2951 | val &= w->mask; |
2952 | if (val == w->on_val) | |
b66a70d5 MB |
2953 | w->power = 1; |
2954 | } | |
2955 | ||
2b97eabc | 2956 | w->new = 1; |
d5d1e0be | 2957 | |
7508b12a | 2958 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2959 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2960 | } |
2961 | ||
95dd5cd6 LPC |
2962 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2963 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2964 | return 0; |
2965 | } | |
2966 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2967 | ||
2968 | /** | |
2969 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2970 | * @kcontrol: mixer control | |
ac11a2b3 | 2971 | * @ucontrol: control element information |
2b97eabc RP |
2972 | * |
2973 | * Callback to get the value of a dapm mixer control. | |
2974 | * | |
2975 | * Returns 0 for success. | |
2976 | */ | |
2977 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2978 | struct snd_ctl_elem_value *ucontrol) | |
2979 | { | |
ce0fc93a LPC |
2980 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2981 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2982 | struct soc_mixer_control *mc = |
2983 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2984 | int reg = mc->reg; |
815ecf8d | 2985 | unsigned int shift = mc->shift; |
4eaa9819 | 2986 | int max = mc->max; |
815ecf8d | 2987 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2988 | unsigned int invert = mc->invert; |
57295073 | 2989 | unsigned int val; |
ce0fc93a | 2990 | int ret = 0; |
da602ab8 BT |
2991 | |
2992 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2993 | dev_warn(dapm->dev, |
30a6a1a4 | 2994 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2995 | kcontrol->id.name); |
2b97eabc | 2996 | |
57295073 | 2997 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2998 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2999 | ret = soc_dapm_read(dapm, reg, &val); | |
3000 | val = (val >> shift) & mask; | |
3001 | } else { | |
57295073 | 3002 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 3003 | } |
57295073 LPC |
3004 | mutex_unlock(&card->dapm_mutex); |
3005 | ||
da602ab8 | 3006 | if (invert) |
57295073 LPC |
3007 | ucontrol->value.integer.value[0] = max - val; |
3008 | else | |
3009 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3010 | |
ce0fc93a | 3011 | return ret; |
2b97eabc RP |
3012 | } |
3013 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3014 | ||
3015 | /** | |
3016 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3017 | * @kcontrol: mixer control | |
ac11a2b3 | 3018 | * @ucontrol: control element information |
2b97eabc RP |
3019 | * |
3020 | * Callback to set the value of a dapm mixer control. | |
3021 | * | |
3022 | * Returns 0 for success. | |
3023 | */ | |
3024 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3025 | struct snd_ctl_elem_value *ucontrol) | |
3026 | { | |
ce0fc93a LPC |
3027 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3028 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3029 | struct soc_mixer_control *mc = |
3030 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3031 | int reg = mc->reg; |
815ecf8d | 3032 | unsigned int shift = mc->shift; |
4eaa9819 | 3033 | int max = mc->max; |
815ecf8d JS |
3034 | unsigned int mask = (1 << fls(max)) - 1; |
3035 | unsigned int invert = mc->invert; | |
e9cf7049 | 3036 | unsigned int val; |
18626c7e | 3037 | int connect, change, reg_change = 0; |
97404f2e | 3038 | struct snd_soc_dapm_update update; |
52765976 | 3039 | int ret = 0; |
2b97eabc | 3040 | |
da602ab8 | 3041 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3042 | dev_warn(dapm->dev, |
30a6a1a4 | 3043 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3044 | kcontrol->id.name); |
3045 | ||
2b97eabc | 3046 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3047 | connect = !!val; |
2b97eabc RP |
3048 | |
3049 | if (invert) | |
a7a4ac86 | 3050 | val = max - val; |
2b97eabc | 3051 | |
3cd04343 | 3052 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3053 | |
249ce138 | 3054 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3055 | |
18626c7e JN |
3056 | if (reg != SND_SOC_NOPM) { |
3057 | mask = mask << shift; | |
3058 | val = val << shift; | |
3059 | ||
ce0fc93a | 3060 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3061 | } |
3062 | ||
3063 | if (change || reg_change) { | |
3064 | if (reg_change) { | |
3065 | update.kcontrol = kcontrol; | |
3066 | update.reg = reg; | |
3067 | update.mask = mask; | |
3068 | update.val = val; | |
3069 | card->update = &update; | |
249ce138 | 3070 | } |
18626c7e | 3071 | change |= reg_change; |
97404f2e | 3072 | |
52765976 | 3073 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3074 | |
564c6504 | 3075 | card->update = NULL; |
283375ce MB |
3076 | } |
3077 | ||
a73fb2df | 3078 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3079 | |
3080 | if (ret > 0) | |
3081 | soc_dpcm_runtime_update(card); | |
3082 | ||
56a67834 | 3083 | return change; |
2b97eabc RP |
3084 | } |
3085 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3086 | ||
3087 | /** | |
3088 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3089 | * @kcontrol: mixer control | |
ac11a2b3 | 3090 | * @ucontrol: control element information |
2b97eabc RP |
3091 | * |
3092 | * Callback to get the value of a dapm enumerated double mixer control. | |
3093 | * | |
3094 | * Returns 0 for success. | |
3095 | */ | |
3096 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3097 | struct snd_ctl_elem_value *ucontrol) | |
3098 | { | |
ce0fc93a | 3099 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3100 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3101 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3102 | unsigned int reg_val, val; |
52765976 | 3103 | |
561ed680 CK |
3104 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3105 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3106 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3107 | if (ret) { |
3108 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3109 | return ret; |
964a0b89 | 3110 | } |
69128316 | 3111 | } else { |
236aaa68 | 3112 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3113 | } |
561ed680 | 3114 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3115 | |
2e72f8e3 | 3116 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3117 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3118 | if (e->shift_l != e->shift_r) { |
3119 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3120 | val = snd_soc_enum_val_to_item(e, val); |
3121 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3122 | } |
3123 | ||
69128316 | 3124 | return 0; |
2e72f8e3 | 3125 | } |
2b97eabc | 3126 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3127 | |
3128 | /** | |
2b97eabc | 3129 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3130 | * @kcontrol: mixer control |
3131 | * @ucontrol: control element information | |
3132 | * | |
2b97eabc | 3133 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3134 | * |
3135 | * Returns 0 for success. | |
3136 | */ | |
2b97eabc | 3137 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3138 | struct snd_ctl_elem_value *ucontrol) |
3139 | { | |
ce0fc93a LPC |
3140 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3141 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3142 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3143 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3144 | unsigned int val, change, reg_change = 0; |
46f5822f | 3145 | unsigned int mask; |
97404f2e | 3146 | struct snd_soc_dapm_update update; |
52765976 | 3147 | int ret = 0; |
2e72f8e3 | 3148 | |
3727b496 | 3149 | if (item[0] >= e->items) |
2e72f8e3 | 3150 | return -EINVAL; |
3727b496 LPC |
3151 | |
3152 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3153 | mask = e->mask << e->shift_l; |
3154 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3155 | if (item[1] > e->items) |
2e72f8e3 | 3156 | return -EINVAL; |
3727b496 | 3157 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
3158 | mask |= e->mask << e->shift_r; |
3159 | } | |
3160 | ||
3cd04343 | 3161 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3162 | |
561ed680 CK |
3163 | change = dapm_kcontrol_set_value(kcontrol, val); |
3164 | ||
236aaa68 | 3165 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3166 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3167 | |
561ed680 CK |
3168 | if (change || reg_change) { |
3169 | if (reg_change) { | |
236aaa68 LPC |
3170 | update.kcontrol = kcontrol; |
3171 | update.reg = e->reg; | |
3172 | update.mask = mask; | |
3173 | update.val = val; | |
3174 | card->update = &update; | |
3175 | } | |
561ed680 | 3176 | change |= reg_change; |
1642e3d4 | 3177 | |
3727b496 | 3178 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3179 | |
564c6504 | 3180 | card->update = NULL; |
fafd2176 | 3181 | } |
2e72f8e3 | 3182 | |
a73fb2df | 3183 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3184 | |
3185 | if (ret > 0) | |
3186 | soc_dpcm_runtime_update(card); | |
3187 | ||
97404f2e | 3188 | return change; |
2e72f8e3 | 3189 | } |
2b97eabc | 3190 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3191 | |
8b37dbd2 MB |
3192 | /** |
3193 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3194 | * | |
3195 | * @kcontrol: mixer control | |
3196 | * @uinfo: control element information | |
3197 | * | |
3198 | * Callback to provide information about a pin switch control. | |
3199 | */ | |
3200 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3201 | struct snd_ctl_elem_info *uinfo) | |
3202 | { | |
3203 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3204 | uinfo->count = 1; | |
3205 | uinfo->value.integer.min = 0; | |
3206 | uinfo->value.integer.max = 1; | |
3207 | ||
3208 | return 0; | |
3209 | } | |
3210 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3211 | ||
3212 | /** | |
3213 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3214 | * | |
3215 | * @kcontrol: mixer control | |
3216 | * @ucontrol: Value | |
3217 | */ | |
3218 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3219 | struct snd_ctl_elem_value *ucontrol) | |
3220 | { | |
48a8c394 | 3221 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3222 | const char *pin = (const char *)kcontrol->private_value; |
3223 | ||
3cd04343 | 3224 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3225 | |
3226 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3227 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3228 | |
a73fb2df | 3229 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3230 | |
3231 | return 0; | |
3232 | } | |
3233 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3234 | ||
3235 | /** | |
3236 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3237 | * | |
3238 | * @kcontrol: mixer control | |
3239 | * @ucontrol: Value | |
3240 | */ | |
3241 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3242 | struct snd_ctl_elem_value *ucontrol) | |
3243 | { | |
48a8c394 | 3244 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3245 | const char *pin = (const char *)kcontrol->private_value; |
3246 | ||
8b37dbd2 | 3247 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3248 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3249 | else |
48a8c394 | 3250 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3251 | |
a73fb2df | 3252 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3253 | return 0; |
3254 | } | |
3255 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3256 | ||
cc76e7de | 3257 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3258 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3259 | const struct snd_soc_dapm_widget *widget) |
3260 | { | |
3261 | struct snd_soc_dapm_widget *w; | |
3262 | ||
3263 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3264 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3265 | if (!w) | |
3266 | dev_err(dapm->dev, | |
3267 | "ASoC: Failed to create DAPM control %s\n", | |
3268 | widget->name); | |
3269 | ||
3270 | mutex_unlock(&dapm->card->dapm_mutex); | |
3271 | return w; | |
3272 | } | |
3273 | ||
3274 | struct snd_soc_dapm_widget * | |
3275 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3276 | const struct snd_soc_dapm_widget *widget) |
2b97eabc RP |
3277 | { |
3278 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3279 | const char *prefix; |
62ea874a | 3280 | int ret; |
2b97eabc RP |
3281 | |
3282 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3283 | return NULL; |
2b97eabc | 3284 | |
62ea874a MB |
3285 | switch (w->id) { |
3286 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3287 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3288 | if (IS_ERR(w->regulator)) { | |
3289 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3290 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3291 | w->name, ret); |
5ba06fc9 | 3292 | return NULL; |
62ea874a | 3293 | } |
8784c77a | 3294 | |
de9ba98b | 3295 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3296 | ret = regulator_allow_bypass(w->regulator, true); |
3297 | if (ret != 0) | |
3298 | dev_warn(w->dapm->dev, | |
30686c35 | 3299 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3300 | w->name, ret); |
3301 | } | |
62ea874a | 3302 | break; |
d7e7eb91 | 3303 | case snd_soc_dapm_clock_supply: |
165961ef | 3304 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3305 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3306 | if (IS_ERR(w->clk)) { |
3307 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3308 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3309 | w->name, ret); |
3310 | return NULL; | |
3311 | } | |
ec02995a MB |
3312 | #else |
3313 | return NULL; | |
3314 | #endif | |
d7e7eb91 | 3315 | break; |
62ea874a MB |
3316 | default: |
3317 | break; | |
3318 | } | |
2b97eabc | 3319 | |
94f99c87 | 3320 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3321 | if (prefix) |
94f99c87 | 3322 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3323 | else |
48068961 | 3324 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3325 | if (w->name == NULL) { |
3326 | kfree(w); | |
5ba06fc9 | 3327 | return NULL; |
ead9b919 | 3328 | } |
ead9b919 | 3329 | |
7ca3a18b | 3330 | switch (w->id) { |
6dd98b0a | 3331 | case snd_soc_dapm_mic: |
6dd98b0a | 3332 | w->is_source = 1; |
7ca3a18b MB |
3333 | w->power_check = dapm_generic_check_power; |
3334 | break; | |
86d75003 LPC |
3335 | case snd_soc_dapm_input: |
3336 | if (!dapm->card->fully_routed) | |
3337 | w->is_source = 1; | |
3338 | w->power_check = dapm_generic_check_power; | |
3339 | break; | |
6dd98b0a LPC |
3340 | case snd_soc_dapm_spk: |
3341 | case snd_soc_dapm_hp: | |
6dd98b0a | 3342 | w->is_sink = 1; |
7ca3a18b MB |
3343 | w->power_check = dapm_generic_check_power; |
3344 | break; | |
86d75003 LPC |
3345 | case snd_soc_dapm_output: |
3346 | if (!dapm->card->fully_routed) | |
3347 | w->is_sink = 1; | |
3348 | w->power_check = dapm_generic_check_power; | |
3349 | break; | |
6dd98b0a LPC |
3350 | case snd_soc_dapm_vmid: |
3351 | case snd_soc_dapm_siggen: | |
3352 | w->is_source = 1; | |
3353 | w->power_check = dapm_always_on_check_power; | |
3354 | break; | |
3355 | case snd_soc_dapm_mux: | |
d714f97c | 3356 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3357 | case snd_soc_dapm_switch: |
3358 | case snd_soc_dapm_mixer: | |
3359 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3360 | case snd_soc_dapm_adc: |
3361 | case snd_soc_dapm_aif_out: | |
3362 | case snd_soc_dapm_dac: | |
3363 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3364 | case snd_soc_dapm_pga: |
3365 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3366 | case snd_soc_dapm_micbias: |
7ca3a18b | 3367 | case snd_soc_dapm_line: |
c74184ed | 3368 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3369 | case snd_soc_dapm_dai_out: |
3370 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3371 | w->power_check = dapm_generic_check_power; |
3372 | break; | |
3373 | case snd_soc_dapm_supply: | |
62ea874a | 3374 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3375 | case snd_soc_dapm_clock_supply: |
57295073 | 3376 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3377 | w->is_supply = 1; |
7ca3a18b MB |
3378 | w->power_check = dapm_supply_check_power; |
3379 | break; | |
3380 | default: | |
3381 | w->power_check = dapm_always_on_check_power; | |
3382 | break; | |
3383 | } | |
3384 | ||
ce6120cc | 3385 | w->dapm = dapm; |
2b97eabc RP |
3386 | INIT_LIST_HEAD(&w->sources); |
3387 | INIT_LIST_HEAD(&w->sinks); | |
3388 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3389 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3390 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3391 | |
92a99ea4 LPC |
3392 | w->inputs = -1; |
3393 | w->outputs = -1; | |
3394 | ||
2b97eabc RP |
3395 | /* machine layer set ups unconnected pins and insertions */ |
3396 | w->connected = 1; | |
5ba06fc9 | 3397 | return w; |
2b97eabc | 3398 | } |
2b97eabc | 3399 | |
4ba1327a MB |
3400 | /** |
3401 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3402 | * @dapm: DAPM context |
4ba1327a MB |
3403 | * @widget: widget array |
3404 | * @num: number of widgets | |
3405 | * | |
3406 | * Creates new DAPM controls based upon the templates. | |
3407 | * | |
3408 | * Returns 0 for success else error. | |
3409 | */ | |
ce6120cc | 3410 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3411 | const struct snd_soc_dapm_widget *widget, |
3412 | int num) | |
3413 | { | |
5ba06fc9 MB |
3414 | struct snd_soc_dapm_widget *w; |
3415 | int i; | |
60884c27 | 3416 | int ret = 0; |
4ba1327a | 3417 | |
a73fb2df | 3418 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3419 | for (i = 0; i < num; i++) { |
02aa78ab | 3420 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
5ba06fc9 | 3421 | if (!w) { |
f7d41ae8 | 3422 | dev_err(dapm->dev, |
5ba06fc9 MB |
3423 | "ASoC: Failed to create DAPM control %s\n", |
3424 | widget->name); | |
60884c27 DC |
3425 | ret = -ENOMEM; |
3426 | break; | |
b8b33cb5 | 3427 | } |
4ba1327a MB |
3428 | widget++; |
3429 | } | |
a73fb2df | 3430 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3431 | return ret; |
4ba1327a MB |
3432 | } |
3433 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3434 | ||
c74184ed MB |
3435 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3436 | struct snd_kcontrol *kcontrol, int event) | |
3437 | { | |
3438 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3439 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3440 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3441 | struct snd_pcm_substream substream; |
9747cec2 | 3442 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3443 | u64 fmt; |
3444 | int ret; | |
3445 | ||
bf4edea8 TI |
3446 | if (WARN_ON(!config) || |
3447 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3448 | return -EINVAL; | |
c74184ed MB |
3449 | |
3450 | /* We only support a single source and sink, pick the first */ | |
3451 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3452 | list_sink); | |
3453 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3454 | list_source); | |
3455 | ||
c74184ed MB |
3456 | source = source_p->source->priv; |
3457 | sink = sink_p->sink->priv; | |
3458 | ||
3459 | /* Be a little careful as we don't want to overflow the mask array */ | |
3460 | if (config->formats) { | |
3461 | fmt = ffs(config->formats) - 1; | |
3462 | } else { | |
30a6a1a4 | 3463 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3464 | config->formats); |
3465 | fmt = 0; | |
3466 | } | |
3467 | ||
3468 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3469 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3470 | if (!params) { | |
3471 | ret = -ENOMEM; | |
3472 | goto out; | |
3473 | } | |
3474 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3475 | |
9747cec2 | 3476 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3477 | config->rate_min; |
9747cec2 | 3478 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3479 | config->rate_max; |
3480 | ||
9747cec2 | 3481 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3482 | = config->channels_min; |
9747cec2 | 3483 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3484 | = config->channels_max; |
3485 | ||
3486 | memset(&substream, 0, sizeof(substream)); | |
3487 | ||
3488 | switch (event) { | |
3489 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3490 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3491 | ret = soc_dai_hw_params(&substream, params, source); | |
3492 | if (ret < 0) | |
3493 | goto out; | |
c74184ed | 3494 | |
93e6958a BC |
3495 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3496 | ret = soc_dai_hw_params(&substream, params, sink); | |
3497 | if (ret < 0) | |
3498 | goto out; | |
c74184ed MB |
3499 | break; |
3500 | ||
3501 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3502 | ret = snd_soc_dai_digital_mute(sink, 0, |
3503 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3504 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3505 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3506 | ret = 0; |
c74184ed MB |
3507 | break; |
3508 | ||
3509 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3510 | ret = snd_soc_dai_digital_mute(sink, 1, |
3511 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3512 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3513 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3514 | ret = 0; |
c74184ed MB |
3515 | break; |
3516 | ||
3517 | default: | |
a6ed0608 | 3518 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3519 | return -EINVAL; |
3520 | } | |
3521 | ||
9747cec2 MB |
3522 | out: |
3523 | kfree(params); | |
3524 | return ret; | |
c74184ed MB |
3525 | } |
3526 | ||
c6615082 NO |
3527 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3528 | struct snd_ctl_elem_value *ucontrol) | |
3529 | { | |
3530 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3531 | ||
3532 | ucontrol->value.integer.value[0] = w->params_select; | |
3533 | ||
3534 | return 0; | |
3535 | } | |
3536 | ||
3537 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3538 | struct snd_ctl_elem_value *ucontrol) | |
3539 | { | |
3540 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3541 | ||
3542 | /* Can't change the config when widget is already powered */ | |
3543 | if (w->power) | |
3544 | return -EBUSY; | |
3545 | ||
3546 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3547 | return 0; | |
3548 | ||
3549 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3550 | return -EINVAL; | |
3551 | ||
3552 | w->params_select = ucontrol->value.integer.value[0]; | |
3553 | ||
3554 | return 0; | |
3555 | } | |
3556 | ||
c74184ed MB |
3557 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3558 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3559 | unsigned int num_params, |
c74184ed MB |
3560 | struct snd_soc_dapm_widget *source, |
3561 | struct snd_soc_dapm_widget *sink) | |
3562 | { | |
c74184ed MB |
3563 | struct snd_soc_dapm_widget template; |
3564 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3565 | char *link_name; |
c6615082 NO |
3566 | int ret, count; |
3567 | unsigned long private_value; | |
3568 | const char **w_param_text; | |
3569 | struct soc_enum w_param_enum[] = { | |
3570 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3571 | }; | |
3572 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3573 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3574 | snd_soc_dapm_dai_link_get, | |
3575 | snd_soc_dapm_dai_link_put), | |
3576 | }; | |
3577 | const struct snd_soc_pcm_stream *config = params; | |
3578 | ||
3579 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3580 | sizeof(char *), GFP_KERNEL); | |
3581 | if (!w_param_text) | |
c74184ed | 3582 | return -ENOMEM; |
c74184ed | 3583 | |
46172b6c CK |
3584 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3585 | source->name, sink->name); | |
c6615082 NO |
3586 | if (!link_name) { |
3587 | ret = -ENOMEM; | |
3588 | goto outfree_w_param; | |
3589 | } | |
c74184ed | 3590 | |
c6615082 NO |
3591 | for (count = 0 ; count < num_params; count++) { |
3592 | if (!config->stream_name) { | |
3593 | dev_warn(card->dapm.dev, | |
3594 | "ASoC: anonymous config %d for dai link %s\n", | |
3595 | count, link_name); | |
c6615082 | 3596 | w_param_text[count] = |
46172b6c CK |
3597 | devm_kasprintf(card->dev, GFP_KERNEL, |
3598 | "Anonymous Configuration %d", | |
3599 | count); | |
c6615082 NO |
3600 | if (!w_param_text[count]) { |
3601 | ret = -ENOMEM; | |
3602 | goto outfree_link_name; | |
3603 | } | |
c6615082 NO |
3604 | } else { |
3605 | w_param_text[count] = devm_kmemdup(card->dev, | |
3606 | config->stream_name, | |
3607 | strlen(config->stream_name) + 1, | |
3608 | GFP_KERNEL); | |
3609 | if (!w_param_text[count]) { | |
3610 | ret = -ENOMEM; | |
3611 | goto outfree_link_name; | |
3612 | } | |
3613 | } | |
3614 | config++; | |
3615 | } | |
3616 | w_param_enum[0].items = num_params; | |
3617 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3618 | |
3619 | memset(&template, 0, sizeof(template)); | |
3620 | template.reg = SND_SOC_NOPM; | |
3621 | template.id = snd_soc_dapm_dai_link; | |
3622 | template.name = link_name; | |
3623 | template.event = snd_soc_dai_link_event; | |
3624 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3625 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3626 | template.num_kcontrols = 1; |
3627 | /* duplicate w_param_enum on heap so that memory persists */ | |
3628 | private_value = | |
3629 | (unsigned long) devm_kmemdup(card->dev, | |
3630 | (void *)(kcontrol_dai_link[0].private_value), | |
3631 | sizeof(struct soc_enum), GFP_KERNEL); | |
3632 | if (!private_value) { | |
3633 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3634 | link_name); | |
3635 | ret = -ENOMEM; | |
3636 | goto outfree_link_name; | |
3637 | } | |
3638 | kcontrol_dai_link[0].private_value = private_value; | |
3639 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3640 | template.kcontrol_news = | |
3641 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3642 | sizeof(struct snd_kcontrol_new), | |
3643 | GFP_KERNEL); | |
3644 | if (!template.kcontrol_news) { | |
3645 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3646 | link_name); | |
3647 | ret = -ENOMEM; | |
3648 | goto outfree_private_value; | |
3649 | } | |
c74184ed | 3650 | |
30a6a1a4 | 3651 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3652 | |
02aa78ab | 3653 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
c74184ed | 3654 | if (!w) { |
30a6a1a4 | 3655 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3656 | link_name); |
c6615082 NO |
3657 | ret = -ENOMEM; |
3658 | goto outfree_kcontrol_news; | |
c74184ed MB |
3659 | } |
3660 | ||
3661 | w->params = params; | |
c6615082 | 3662 | w->num_params = num_params; |
c74184ed | 3663 | |
fe83897f LPC |
3664 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3665 | if (ret) | |
c6615082 | 3666 | goto outfree_w; |
fe83897f | 3667 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3668 | |
3669 | outfree_w: | |
3670 | devm_kfree(card->dev, w); | |
3671 | outfree_kcontrol_news: | |
3672 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3673 | outfree_private_value: | |
3674 | devm_kfree(card->dev, (void *)private_value); | |
3675 | outfree_link_name: | |
3676 | devm_kfree(card->dev, link_name); | |
3677 | outfree_w_param: | |
3678 | for (count = 0 ; count < num_params; count++) | |
3679 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3680 | devm_kfree(card->dev, w_param_text); | |
3681 | ||
3682 | return ret; | |
c74184ed MB |
3683 | } |
3684 | ||
888df395 MB |
3685 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3686 | struct snd_soc_dai *dai) | |
2b97eabc | 3687 | { |
888df395 | 3688 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3689 | struct snd_soc_dapm_widget *w; |
3690 | ||
888df395 MB |
3691 | WARN_ON(dapm->dev != dai->dev); |
3692 | ||
3693 | memset(&template, 0, sizeof(template)); | |
3694 | template.reg = SND_SOC_NOPM; | |
3695 | ||
3696 | if (dai->driver->playback.stream_name) { | |
4616274d | 3697 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3698 | template.name = dai->driver->playback.stream_name; |
3699 | template.sname = dai->driver->playback.stream_name; | |
3700 | ||
30a6a1a4 | 3701 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3702 | template.name); |
3703 | ||
02aa78ab | 3704 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3705 | if (!w) { |
30a6a1a4 | 3706 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3707 | dai->driver->playback.stream_name); |
298402a3 | 3708 | return -ENOMEM; |
888df395 MB |
3709 | } |
3710 | ||
3711 | w->priv = dai; | |
3712 | dai->playback_widget = w; | |
3713 | } | |
3714 | ||
3715 | if (dai->driver->capture.stream_name) { | |
4616274d | 3716 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3717 | template.name = dai->driver->capture.stream_name; |
3718 | template.sname = dai->driver->capture.stream_name; | |
3719 | ||
30a6a1a4 | 3720 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3721 | template.name); |
3722 | ||
02aa78ab | 3723 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3724 | if (!w) { |
30a6a1a4 | 3725 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3726 | dai->driver->capture.stream_name); |
298402a3 | 3727 | return -ENOMEM; |
888df395 MB |
3728 | } |
3729 | ||
3730 | w->priv = dai; | |
3731 | dai->capture_widget = w; | |
3732 | } | |
3733 | ||
3734 | return 0; | |
3735 | } | |
3736 | ||
3737 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3738 | { | |
3739 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3740 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3741 | struct snd_soc_dai *dai; |
888df395 MB |
3742 | |
3743 | /* For each DAI widget... */ | |
3744 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3745 | switch (dai_w->id) { |
3746 | case snd_soc_dapm_dai_in: | |
3747 | case snd_soc_dapm_dai_out: | |
3748 | break; | |
3749 | default: | |
2b97eabc | 3750 | continue; |
4616274d | 3751 | } |
888df395 MB |
3752 | |
3753 | dai = dai_w->priv; | |
3754 | ||
3755 | /* ...find all widgets with the same stream and link them */ | |
3756 | list_for_each_entry(w, &card->widgets, list) { | |
3757 | if (w->dapm != dai_w->dapm) | |
3758 | continue; | |
3759 | ||
4616274d MB |
3760 | switch (w->id) { |
3761 | case snd_soc_dapm_dai_in: | |
3762 | case snd_soc_dapm_dai_out: | |
888df395 | 3763 | continue; |
4616274d MB |
3764 | default: |
3765 | break; | |
3766 | } | |
888df395 | 3767 | |
a798c24a | 3768 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
3769 | continue; |
3770 | ||
0f9bd7b1 LPC |
3771 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3772 | src = dai_w; | |
3773 | sink = w; | |
3774 | } else { | |
3775 | src = w; | |
3776 | sink = dai_w; | |
2b97eabc | 3777 | } |
0f9bd7b1 LPC |
3778 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3779 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3780 | } |
3781 | } | |
2b97eabc | 3782 | |
888df395 MB |
3783 | return 0; |
3784 | } | |
64a648c2 | 3785 | |
44ba2641 BC |
3786 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3787 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3788 | { |
44ba2641 | 3789 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3790 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3791 | int i; |
3792 | ||
44ba2641 BC |
3793 | for (i = 0; i < rtd->num_codecs; i++) { |
3794 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3795 | |
3796 | /* there is no point in connecting BE DAI links with dummies */ | |
3797 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3798 | snd_soc_dai_is_dummy(cpu_dai)) | |
3799 | continue; | |
3800 | ||
3801 | /* connect BE DAI playback if widgets are valid */ | |
3802 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3803 | source = cpu_dai->playback_widget; |
3804 | sink = codec_dai->playback_widget; | |
b893ea5f | 3805 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3806 | cpu_dai->component->name, source->name, |
3807 | codec_dai->component->name, sink->name); | |
b893ea5f | 3808 | |
9887c20b LPC |
3809 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3810 | NULL, NULL); | |
b893ea5f LG |
3811 | } |
3812 | ||
3813 | /* connect BE DAI capture if widgets are valid */ | |
3814 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3815 | source = codec_dai->capture_widget; |
3816 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3817 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3818 | codec_dai->component->name, source->name, |
3819 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3820 | |
9887c20b LPC |
3821 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3822 | NULL, NULL); | |
b893ea5f | 3823 | } |
b893ea5f LG |
3824 | } |
3825 | } | |
3826 | ||
c471fdd1 | 3827 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3828 | int event) |
2b97eabc | 3829 | { |
c471fdd1 | 3830 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3831 | |
c471fdd1 LPC |
3832 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3833 | w = dai->playback_widget; | |
3834 | else | |
3835 | w = dai->capture_widget; | |
fe360685 | 3836 | |
c471fdd1 LPC |
3837 | if (w) { |
3838 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3839 | |
3840 | switch (event) { | |
3841 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3842 | w->active = 1; |
d9b0951b LG |
3843 | break; |
3844 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3845 | w->active = 0; |
d9b0951b LG |
3846 | break; |
3847 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3848 | case SND_SOC_DAPM_STREAM_RESUME: | |
3849 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3850 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3851 | break; | |
3852 | } | |
6dd98b0a | 3853 | |
92a99ea4 | 3854 | if (w->id == snd_soc_dapm_dai_in) { |
6dd98b0a | 3855 | w->is_source = w->active; |
92a99ea4 LPC |
3856 | dapm_widget_invalidate_input_paths(w); |
3857 | } else { | |
6dd98b0a | 3858 | w->is_sink = w->active; |
92a99ea4 LPC |
3859 | dapm_widget_invalidate_output_paths(w); |
3860 | } | |
d9b0951b | 3861 | } |
c471fdd1 | 3862 | } |
d9b0951b | 3863 | |
44ba2641 BC |
3864 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3865 | { | |
3866 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3867 | int i; | |
3868 | ||
3869 | /* for each BE DAI link... */ | |
3870 | for (i = 0; i < card->num_rtd; i++) { | |
3871 | rtd = &card->rtd[i]; | |
3872 | ||
3873 | /* | |
3874 | * dynamic FE links have no fixed DAI mapping. | |
3875 | * CODEC<->CODEC links have no direct connection. | |
3876 | */ | |
3877 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3878 | continue; | |
3879 | ||
3880 | dapm_connect_dai_link_widgets(card, rtd); | |
3881 | } | |
3882 | } | |
3883 | ||
c471fdd1 LPC |
3884 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3885 | int event) | |
3886 | { | |
44ba2641 BC |
3887 | int i; |
3888 | ||
c471fdd1 | 3889 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3890 | for (i = 0; i < rtd->num_codecs; i++) |
3891 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3892 | |
95dd5cd6 | 3893 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3894 | } |
3895 | ||
3896 | /** | |
3897 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3898 | * @rtd: PCM runtime data | |
3899 | * @stream: stream name | |
3900 | * @event: stream event | |
3901 | * | |
3902 | * Sends a stream event to the dapm core. The core then makes any | |
3903 | * necessary widget power changes. | |
3904 | * | |
3905 | * Returns 0 for success else error. | |
3906 | */ | |
d9b0951b LG |
3907 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3908 | int event) | |
ce6120cc | 3909 | { |
a73fb2df | 3910 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3911 | |
3cd04343 | 3912 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3913 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3914 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3915 | } |
2b97eabc | 3916 | |
11391100 CK |
3917 | /** |
3918 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3919 | * @dapm: DAPM context | |
3920 | * @pin: pin name | |
3921 | * | |
3922 | * Enables input/output pin and its parents or children widgets iff there is | |
3923 | * a valid audio route and active audio stream. | |
3924 | * | |
3925 | * Requires external locking. | |
3926 | * | |
3927 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3928 | * do any widget power switching. | |
3929 | */ | |
3930 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3931 | const char *pin) | |
3932 | { | |
3933 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3934 | } | |
3935 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3936 | ||
2b97eabc | 3937 | /** |
a5302181 | 3938 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3939 | * @dapm: DAPM context |
a5302181 | 3940 | * @pin: pin name |
2b97eabc | 3941 | * |
74b8f955 | 3942 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3943 | * a valid audio route and active audio stream. |
11391100 | 3944 | * |
a5302181 LG |
3945 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3946 | * do any widget power switching. | |
2b97eabc | 3947 | */ |
ce6120cc | 3948 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3949 | { |
11391100 CK |
3950 | int ret; |
3951 | ||
3952 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3953 | ||
3954 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3955 | ||
3956 | mutex_unlock(&dapm->card->dapm_mutex); | |
3957 | ||
3958 | return ret; | |
a5302181 LG |
3959 | } |
3960 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3961 | |
da34183e | 3962 | /** |
11391100 | 3963 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3964 | * @dapm: DAPM context |
da34183e MB |
3965 | * @pin: pin name |
3966 | * | |
3967 | * Enables input/output pin regardless of any other state. This is | |
3968 | * intended for use with microphone bias supplies used in microphone | |
3969 | * jack detection. | |
3970 | * | |
11391100 CK |
3971 | * Requires external locking. |
3972 | * | |
da34183e MB |
3973 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3974 | * do any widget power switching. | |
3975 | */ | |
11391100 CK |
3976 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3977 | const char *pin) | |
da34183e | 3978 | { |
91a5fca4 | 3979 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3980 | |
91a5fca4 | 3981 | if (!w) { |
30a6a1a4 | 3982 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3983 | return -EINVAL; |
0d86733c MB |
3984 | } |
3985 | ||
30a6a1a4 | 3986 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
3987 | if (!w->connected) { |
3988 | /* | |
3989 | * w->force does not affect the number of input or output paths, | |
3990 | * so we only have to recheck if w->connected is changed | |
3991 | */ | |
3992 | dapm_widget_invalidate_input_paths(w); | |
3993 | dapm_widget_invalidate_output_paths(w); | |
3994 | w->connected = 1; | |
3995 | } | |
91a5fca4 | 3996 | w->force = 1; |
75c1f891 | 3997 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3998 | |
91a5fca4 | 3999 | return 0; |
da34183e | 4000 | } |
11391100 CK |
4001 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4002 | ||
4003 | /** | |
4004 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4005 | * @dapm: DAPM context | |
4006 | * @pin: pin name | |
4007 | * | |
4008 | * Enables input/output pin regardless of any other state. This is | |
4009 | * intended for use with microphone bias supplies used in microphone | |
4010 | * jack detection. | |
4011 | * | |
4012 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4013 | * do any widget power switching. | |
4014 | */ | |
4015 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4016 | const char *pin) | |
4017 | { | |
4018 | int ret; | |
4019 | ||
4020 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4021 | ||
4022 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4023 | ||
4024 | mutex_unlock(&dapm->card->dapm_mutex); | |
4025 | ||
4026 | return ret; | |
4027 | } | |
da34183e MB |
4028 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4029 | ||
11391100 CK |
4030 | /** |
4031 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4032 | * @dapm: DAPM context | |
4033 | * @pin: pin name | |
4034 | * | |
4035 | * Disables input/output pin and its parents or children widgets. | |
4036 | * | |
4037 | * Requires external locking. | |
4038 | * | |
4039 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4040 | * do any widget power switching. | |
4041 | */ | |
4042 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4043 | const char *pin) | |
4044 | { | |
4045 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4046 | } | |
4047 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4048 | ||
a5302181 LG |
4049 | /** |
4050 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4051 | * @dapm: DAPM context |
a5302181 LG |
4052 | * @pin: pin name |
4053 | * | |
74b8f955 | 4054 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4055 | * |
a5302181 LG |
4056 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4057 | * do any widget power switching. | |
4058 | */ | |
ce6120cc LG |
4059 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4060 | const char *pin) | |
a5302181 | 4061 | { |
11391100 CK |
4062 | int ret; |
4063 | ||
4064 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4065 | ||
4066 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4067 | ||
4068 | mutex_unlock(&dapm->card->dapm_mutex); | |
4069 | ||
4070 | return ret; | |
2b97eabc | 4071 | } |
a5302181 | 4072 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4073 | |
11391100 CK |
4074 | /** |
4075 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4076 | * @dapm: DAPM context | |
4077 | * @pin: pin name | |
4078 | * | |
4079 | * Marks the specified pin as being not connected, disabling it along | |
4080 | * any parent or child widgets. At present this is identical to | |
4081 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4082 | * additional things such as disabling controls which only affect | |
4083 | * paths through the pin. | |
4084 | * | |
4085 | * Requires external locking. | |
4086 | * | |
4087 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4088 | * do any widget power switching. | |
4089 | */ | |
4090 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4091 | const char *pin) | |
4092 | { | |
4093 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4094 | } | |
4095 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4096 | ||
5817b52a MB |
4097 | /** |
4098 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4099 | * @dapm: DAPM context |
5817b52a MB |
4100 | * @pin: pin name |
4101 | * | |
4102 | * Marks the specified pin as being not connected, disabling it along | |
4103 | * any parent or child widgets. At present this is identical to | |
4104 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4105 | * additional things such as disabling controls which only affect | |
4106 | * paths through the pin. | |
4107 | * | |
4108 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4109 | * do any widget power switching. | |
4110 | */ | |
ce6120cc | 4111 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4112 | { |
11391100 CK |
4113 | int ret; |
4114 | ||
4115 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4116 | ||
4117 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4118 | ||
4119 | mutex_unlock(&dapm->card->dapm_mutex); | |
4120 | ||
4121 | return ret; | |
5817b52a MB |
4122 | } |
4123 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4124 | ||
eeec12bf | 4125 | /** |
a5302181 | 4126 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4127 | * @dapm: DAPM context |
a5302181 | 4128 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4129 | * |
a5302181 | 4130 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4131 | * |
a5302181 | 4132 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4133 | */ |
ce6120cc LG |
4134 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4135 | const char *pin) | |
eeec12bf | 4136 | { |
91a5fca4 | 4137 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4138 | |
91a5fca4 LPC |
4139 | if (w) |
4140 | return w->connected; | |
a68b38ad | 4141 | |
eeec12bf GG |
4142 | return 0; |
4143 | } | |
a5302181 | 4144 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4145 | |
1547aba9 MB |
4146 | /** |
4147 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4148 | * @dapm: DAPM context |
1547aba9 MB |
4149 | * @pin: audio signal pin endpoint (or start point) |
4150 | * | |
4151 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4152 | * system is disabled a path between two endpoints flagged as ignoring | |
4153 | * suspend will not be disabled. The path must already be enabled via | |
4154 | * normal means at suspend time, it will not be turned on if it was not | |
4155 | * already enabled. | |
4156 | */ | |
ce6120cc LG |
4157 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4158 | const char *pin) | |
1547aba9 | 4159 | { |
91a5fca4 | 4160 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4161 | |
91a5fca4 | 4162 | if (!w) { |
30a6a1a4 | 4163 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4164 | return -EINVAL; |
1547aba9 MB |
4165 | } |
4166 | ||
91a5fca4 LPC |
4167 | w->ignore_suspend = 1; |
4168 | ||
4169 | return 0; | |
1547aba9 MB |
4170 | } |
4171 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4172 | ||
2b97eabc RP |
4173 | /** |
4174 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4175 | * @dapm: DAPM context |
2b97eabc RP |
4176 | * |
4177 | * Free all dapm widgets and resources. | |
4178 | */ | |
ce6120cc | 4179 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4180 | { |
6c45e126 | 4181 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4182 | dapm_free_widgets(dapm); |
7be31be8 | 4183 | list_del(&dapm->list); |
2b97eabc RP |
4184 | } |
4185 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4186 | ||
57996358 | 4187 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4188 | { |
01005a72 | 4189 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4190 | struct snd_soc_dapm_widget *w; |
4191 | LIST_HEAD(down_list); | |
4192 | int powerdown = 0; | |
4193 | ||
01005a72 LG |
4194 | mutex_lock(&card->dapm_mutex); |
4195 | ||
97c866de JN |
4196 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4197 | if (w->dapm != dapm) | |
4198 | continue; | |
51737470 | 4199 | if (w->power) { |
828a842f | 4200 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4201 | w->power = 0; |
51737470 MB |
4202 | powerdown = 1; |
4203 | } | |
4204 | } | |
4205 | ||
4206 | /* If there were no widgets to power down we're already in | |
4207 | * standby. | |
4208 | */ | |
4209 | if (powerdown) { | |
7679e42e MB |
4210 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4211 | snd_soc_dapm_set_bias_level(dapm, | |
4212 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4213 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4214 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4215 | snd_soc_dapm_set_bias_level(dapm, | |
4216 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4217 | } |
01005a72 LG |
4218 | |
4219 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4220 | } |
4221 | ||
4222 | /* | |
4223 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4224 | */ | |
4225 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4226 | { | |
57996358 | 4227 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4228 | |
57996358 | 4229 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4230 | if (dapm != &card->dapm) { |
4231 | soc_dapm_shutdown_dapm(dapm); | |
4232 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4233 | snd_soc_dapm_set_bias_level(dapm, | |
4234 | SND_SOC_BIAS_OFF); | |
4235 | } | |
ce6120cc | 4236 | } |
17282ba4 XX |
4237 | |
4238 | soc_dapm_shutdown_dapm(&card->dapm); | |
4239 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4240 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4241 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4242 | } |
4243 | ||
2b97eabc | 4244 | /* Module information */ |
d331124d | 4245 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4246 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4247 | MODULE_LICENSE("GPL"); |