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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 LPC |
360 | &template); |
361 | if (!data->widget) { | |
773da9b3 CK |
362 | ret = -ENOMEM; |
363 | goto err_name; | |
57295073 LPC |
364 | } |
365 | } | |
366 | break; | |
d714f97c | 367 | case snd_soc_dapm_demux: |
561ed680 CK |
368 | case snd_soc_dapm_mux: |
369 | e = (struct soc_enum *)kcontrol->private_value; | |
370 | ||
371 | if (e->autodisable) { | |
372 | struct snd_soc_dapm_widget template; | |
373 | ||
374 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, | |
375 | "Autodisable"); | |
376 | if (!name) { | |
377 | ret = -ENOMEM; | |
378 | goto err_data; | |
379 | } | |
380 | ||
381 | memset(&template, 0, sizeof(template)); | |
382 | template.reg = e->reg; | |
383 | template.mask = e->mask << e->shift_l; | |
384 | template.shift = e->shift_l; | |
385 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
386 | template.on_val = template.off_val; | |
387 | template.id = snd_soc_dapm_kcontrol; | |
388 | template.name = name; | |
389 | ||
390 | data->value = template.on_val; | |
391 | ||
ffacb48e CK |
392 | data->widget = snd_soc_dapm_new_control_unlocked( |
393 | widget->dapm, &template); | |
561ed680 CK |
394 | if (!data->widget) { |
395 | ret = -ENOMEM; | |
396 | goto err_name; | |
397 | } | |
398 | ||
399 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
400 | widget, NULL, NULL); | |
401 | } | |
402 | break; | |
57295073 LPC |
403 | default: |
404 | break; | |
405 | } | |
406 | ||
e84357f7 LPC |
407 | kcontrol->private_data = data; |
408 | ||
409 | return 0; | |
773da9b3 CK |
410 | |
411 | err_name: | |
412 | kfree(name); | |
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); | |
773da9b3 CK |
421 | if (data->widget) |
422 | kfree(data->widget->name); | |
2c75bdf3 | 423 | kfree(data->wlist); |
e84357f7 LPC |
424 | kfree(data); |
425 | } | |
426 | ||
427 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
428 | const struct snd_kcontrol *kcontrol) | |
429 | { | |
430 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
431 | ||
2c75bdf3 | 432 | return data->wlist; |
e84357f7 LPC |
433 | } |
434 | ||
435 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
436 | struct snd_soc_dapm_widget *widget) | |
437 | { | |
438 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
439 | struct snd_soc_dapm_widget_list *new_wlist; |
440 | unsigned int n; | |
e84357f7 | 441 | |
2c75bdf3 LPC |
442 | if (data->wlist) |
443 | n = data->wlist->num_widgets + 1; | |
444 | else | |
445 | n = 1; | |
446 | ||
447 | new_wlist = krealloc(data->wlist, | |
448 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
449 | if (!new_wlist) | |
e84357f7 LPC |
450 | return -ENOMEM; |
451 | ||
2c75bdf3 LPC |
452 | new_wlist->widgets[n - 1] = widget; |
453 | new_wlist->num_widgets = n; | |
e84357f7 | 454 | |
2c75bdf3 | 455 | data->wlist = new_wlist; |
e84357f7 LPC |
456 | |
457 | return 0; | |
458 | } | |
459 | ||
5106b92f LPC |
460 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
461 | struct snd_soc_dapm_path *path) | |
462 | { | |
463 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
464 | ||
465 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
466 | } |
467 | ||
468 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
469 | { | |
470 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
471 | ||
472 | if (!data->widget) | |
473 | return true; | |
474 | ||
475 | return data->widget->power; | |
5106b92f LPC |
476 | } |
477 | ||
478 | static struct list_head *dapm_kcontrol_get_path_list( | |
479 | const struct snd_kcontrol *kcontrol) | |
480 | { | |
481 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
482 | ||
483 | return &data->paths; | |
484 | } | |
485 | ||
486 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
487 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
488 | list_kcontrol) | |
489 | ||
5dc0158a | 490 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
491 | { |
492 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
493 | ||
494 | return data->value; | |
495 | } | |
5dc0158a | 496 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
497 | |
498 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
499 | unsigned int value) | |
500 | { | |
501 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
502 | ||
503 | if (data->value == value) | |
504 | return false; | |
505 | ||
57295073 LPC |
506 | if (data->widget) |
507 | data->widget->on_val = value; | |
508 | ||
cf7c1de2 LPC |
509 | data->value = value; |
510 | ||
511 | return true; | |
512 | } | |
513 | ||
ce0fc93a LPC |
514 | /** |
515 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
516 | * kcontrol | |
517 | * @kcontrol: The kcontrol | |
518 | * | |
519 | * Note: This function must only be used on kcontrols that are known to have | |
520 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
521 | */ | |
522 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
523 | struct snd_kcontrol *kcontrol) | |
524 | { | |
525 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
526 | } | |
527 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
528 | ||
6c120e19 LG |
529 | static void dapm_reset(struct snd_soc_card *card) |
530 | { | |
531 | struct snd_soc_dapm_widget *w; | |
532 | ||
f9fa2b18 MB |
533 | lockdep_assert_held(&card->dapm_mutex); |
534 | ||
6c120e19 LG |
535 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
536 | ||
537 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 538 | w->new_power = w->power; |
6c120e19 | 539 | w->power_checked = false; |
6c120e19 LG |
540 | } |
541 | } | |
542 | ||
94f99c87 LPC |
543 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
544 | { | |
545 | if (!dapm->component) | |
546 | return NULL; | |
547 | return dapm->component->name_prefix; | |
548 | } | |
549 | ||
ce0fc93a | 550 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 551 | unsigned int *value) |
0445bdf4 | 552 | { |
ce0fc93a | 553 | if (!dapm->component) |
e2c330b9 | 554 | return -EIO; |
ce0fc93a | 555 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
556 | } |
557 | ||
ce0fc93a | 558 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 559 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 560 | { |
ce0fc93a | 561 | if (!dapm->component) |
e2c330b9 | 562 | return -EIO; |
fcf6c5ea MB |
563 | return snd_soc_component_update_bits(dapm->component, reg, |
564 | mask, value); | |
49575fb5 LG |
565 | } |
566 | ||
ce0fc93a LPC |
567 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
568 | int reg, unsigned int mask, unsigned int value) | |
569 | { | |
570 | if (!dapm->component) | |
571 | return -EIO; | |
572 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
573 | } | |
574 | ||
eb270e98 MB |
575 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
576 | { | |
e2c330b9 LPC |
577 | if (dapm->component) |
578 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
579 | } |
580 | ||
45a110a1 CK |
581 | static struct snd_soc_dapm_widget * |
582 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
583 | { | |
584 | struct snd_soc_dapm_widget *w = wcache->widget; | |
585 | struct list_head *wlist; | |
586 | const int depth = 2; | |
587 | int i = 0; | |
588 | ||
589 | if (w) { | |
590 | wlist = &w->dapm->card->widgets; | |
591 | ||
592 | list_for_each_entry_from(w, wlist, list) { | |
593 | if (!strcmp(name, w->name)) | |
594 | return w; | |
595 | ||
596 | if (++i == depth) | |
597 | break; | |
598 | } | |
599 | } | |
600 | ||
601 | return NULL; | |
602 | } | |
603 | ||
604 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
605 | struct snd_soc_dapm_widget *w) | |
606 | { | |
607 | wcache->widget = w; | |
608 | } | |
609 | ||
fa880775 LPC |
610 | /** |
611 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
612 | * @dapm: The DAPM context for which to set the level | |
613 | * @level: The level to set | |
614 | * | |
615 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
616 | * callback of DAPM context with the specified level. This will even happen if | |
617 | * the context is already at the same level. Furthermore it will not go through | |
618 | * the normal bias level sequencing, meaning any intermediate states between the | |
619 | * current and the target state will not be entered. | |
620 | * | |
621 | * Note that the change in bias level is only temporary and the next time | |
622 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
623 | * determined by the DAPM core. The function is mainly intended to be used to | |
624 | * used during probe or resume from suspend to power up the device so | |
625 | * initialization can be done, before the DAPM core takes over. | |
626 | */ | |
627 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
628 | enum snd_soc_bias_level level) | |
629 | { | |
630 | int ret = 0; | |
631 | ||
632 | if (dapm->set_bias_level) | |
633 | ret = dapm->set_bias_level(dapm, level); | |
634 | ||
f4bf8d77 LPC |
635 | if (ret == 0) |
636 | dapm->bias_level = level; | |
637 | ||
fa880775 LPC |
638 | return ret; |
639 | } | |
640 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
641 | ||
452c5eaa MB |
642 | /** |
643 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 644 | * @dapm: DAPM context |
452c5eaa MB |
645 | * @level: level to configure |
646 | * | |
647 | * Configure the bias (power) levels for the SoC audio device. | |
648 | * | |
649 | * Returns 0 for success else error. | |
650 | */ | |
ed5a4c47 | 651 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 652 | enum snd_soc_bias_level level) |
452c5eaa | 653 | { |
ed5a4c47 | 654 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
655 | int ret = 0; |
656 | ||
84e90930 MB |
657 | trace_snd_soc_bias_level_start(card, level); |
658 | ||
f0fba2ad | 659 | if (card && card->set_bias_level) |
d4c6005f | 660 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
661 | if (ret != 0) |
662 | goto out; | |
663 | ||
fa880775 LPC |
664 | if (!card || dapm != &card->dapm) |
665 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 666 | |
171ec6b0 MB |
667 | if (ret != 0) |
668 | goto out; | |
669 | ||
670 | if (card && card->set_bias_level_post) | |
d4c6005f | 671 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 672 | out: |
84e90930 MB |
673 | trace_snd_soc_bias_level_done(card, level); |
674 | ||
452c5eaa MB |
675 | return ret; |
676 | } | |
677 | ||
74b8f955 | 678 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 679 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
680 | struct snd_soc_dapm_path *path, const char *control_name, |
681 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 682 | { |
d714f97c | 683 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 684 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 685 | unsigned int val, item; |
2b97eabc | 686 | int i; |
24ff33ac | 687 | |
234c0b8f | 688 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 689 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
690 | val = (val >> e->shift_l) & e->mask; |
691 | item = snd_soc_enum_val_to_item(e, val); | |
692 | } else { | |
24ff33ac DP |
693 | /* since a virtual mux has no backing registers to |
694 | * decide which path to connect, it will try to match | |
695 | * with the first enumeration. This is to ensure | |
696 | * that the default mux choice (the first) will be | |
697 | * correctly powered up during initialization. | |
698 | */ | |
234c0b8f | 699 | item = 0; |
24ff33ac | 700 | } |
2e72f8e3 | 701 | |
9a8d38db | 702 | for (i = 0; i < e->items; i++) { |
2b97eabc | 703 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 704 | path->name = e->texts[i]; |
234c0b8f LPC |
705 | if (i == item) |
706 | path->connect = 1; | |
707 | else | |
708 | path->connect = 0; | |
2b97eabc RP |
709 | return 0; |
710 | } | |
711 | } | |
712 | ||
713 | return -ENODEV; | |
714 | } | |
715 | ||
234c0b8f | 716 | /* set up initial codec paths */ |
5fe5b767 | 717 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
718 | { |
719 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 720 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
721 | unsigned int reg = mc->reg; |
722 | unsigned int shift = mc->shift; | |
723 | unsigned int max = mc->max; | |
724 | unsigned int mask = (1 << fls(max)) - 1; | |
725 | unsigned int invert = mc->invert; | |
726 | unsigned int val; | |
727 | ||
728 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 729 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
730 | val = (val >> shift) & mask; |
731 | if (invert) | |
732 | val = max - val; | |
733 | p->connect = !!val; | |
734 | } else { | |
735 | p->connect = 0; | |
736 | } | |
737 | } | |
738 | ||
74b8f955 | 739 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 740 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
741 | struct snd_soc_dapm_path *path, const char *control_name) |
742 | { | |
743 | int i; | |
744 | ||
745 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
746 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
747 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
748 | path->name = path->sink->kcontrol_news[i].name; | |
749 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
750 | return 0; |
751 | } | |
752 | } | |
753 | return -ENODEV; | |
754 | } | |
755 | ||
af46800b | 756 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 757 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
758 | const struct snd_kcontrol_new *kcontrol_new, |
759 | struct snd_kcontrol **kcontrol) | |
760 | { | |
761 | struct snd_soc_dapm_widget *w; | |
762 | int i; | |
763 | ||
764 | *kcontrol = NULL; | |
765 | ||
766 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
767 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
768 | continue; | |
af46800b SW |
769 | for (i = 0; i < w->num_kcontrols; i++) { |
770 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
771 | if (w->kcontrols) | |
772 | *kcontrol = w->kcontrols[i]; | |
773 | return 1; | |
774 | } | |
775 | } | |
776 | } | |
777 | ||
778 | return 0; | |
779 | } | |
780 | ||
85762e71 SW |
781 | /* |
782 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
783 | * create it. Either way, add the widget into the control's widget list | |
784 | */ | |
785 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 786 | int kci) |
2b97eabc | 787 | { |
4b80b8c2 | 788 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 789 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 790 | const char *prefix; |
85762e71 SW |
791 | size_t prefix_len; |
792 | int shared; | |
793 | struct snd_kcontrol *kcontrol; | |
85762e71 | 794 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 795 | char *long_name = NULL; |
85762e71 | 796 | const char *name; |
e5092c96 | 797 | int ret = 0; |
efb7ac3f | 798 | |
94f99c87 | 799 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
800 | if (prefix) |
801 | prefix_len = strlen(prefix) + 1; | |
802 | else | |
803 | prefix_len = 0; | |
804 | ||
85762e71 SW |
805 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
806 | &kcontrol); | |
2b97eabc | 807 | |
85762e71 SW |
808 | if (!kcontrol) { |
809 | if (shared) { | |
810 | wname_in_long_name = false; | |
811 | kcname_in_long_name = true; | |
812 | } else { | |
813 | switch (w->id) { | |
814 | case snd_soc_dapm_switch: | |
815 | case snd_soc_dapm_mixer: | |
816 | wname_in_long_name = true; | |
817 | kcname_in_long_name = true; | |
818 | break; | |
819 | case snd_soc_dapm_mixer_named_ctl: | |
820 | wname_in_long_name = false; | |
821 | kcname_in_long_name = true; | |
822 | break; | |
d714f97c | 823 | case snd_soc_dapm_demux: |
85762e71 | 824 | case snd_soc_dapm_mux: |
85762e71 SW |
825 | wname_in_long_name = true; |
826 | kcname_in_long_name = false; | |
827 | break; | |
828 | default: | |
85762e71 | 829 | return -EINVAL; |
82cd8764 | 830 | } |
85762e71 SW |
831 | } |
832 | ||
833 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
834 | /* |
835 | * The control will get a prefix from the control | |
836 | * creation process but we're also using the same | |
837 | * prefix for widgets so cut the prefix off the | |
838 | * front of the widget name. | |
ca9c1aae | 839 | */ |
2b581074 | 840 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
841 | w->name + prefix_len, |
842 | w->kcontrol_news[kci].name); | |
e84357f7 | 843 | if (long_name == NULL) |
2b581074 | 844 | return -ENOMEM; |
85762e71 SW |
845 | |
846 | name = long_name; | |
847 | } else if (wname_in_long_name) { | |
848 | long_name = NULL; | |
849 | name = w->name + prefix_len; | |
850 | } else { | |
851 | long_name = NULL; | |
852 | name = w->kcontrol_news[kci].name; | |
853 | } | |
ca9c1aae | 854 | |
e84357f7 | 855 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 856 | prefix); |
e5092c96 DM |
857 | if (!kcontrol) { |
858 | ret = -ENOMEM; | |
859 | goto exit_free; | |
860 | } | |
861 | ||
9356e9d5 | 862 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
863 | |
864 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
865 | if (ret) { | |
866 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 867 | goto exit_free; |
e84357f7 LPC |
868 | } |
869 | ||
85762e71 SW |
870 | ret = snd_ctl_add(card, kcontrol); |
871 | if (ret < 0) { | |
872 | dev_err(dapm->dev, | |
873 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
874 | w->name, name, ret); | |
e5092c96 | 875 | goto exit_free; |
85762e71 | 876 | } |
85762e71 | 877 | } |
2b97eabc | 878 | |
2c75bdf3 | 879 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
880 | if (ret == 0) |
881 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 882 | |
e5092c96 DM |
883 | exit_free: |
884 | kfree(long_name); | |
ca9c1aae | 885 | |
e5092c96 | 886 | return ret; |
85762e71 | 887 | } |
219b93f5 | 888 | |
85762e71 SW |
889 | /* create new dapm mixer control */ |
890 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
891 | { | |
892 | int i, ret; | |
893 | struct snd_soc_dapm_path *path; | |
561ed680 | 894 | struct dapm_kcontrol_data *data; |
85762e71 SW |
895 | |
896 | /* add kcontrol */ | |
897 | for (i = 0; i < w->num_kcontrols; i++) { | |
898 | /* match name */ | |
899 | list_for_each_entry(path, &w->sources, list_sink) { | |
900 | /* mixer/mux paths name must match control name */ | |
901 | if (path->name != (char *)w->kcontrol_news[i].name) | |
902 | continue; | |
903 | ||
561ed680 CK |
904 | if (!w->kcontrols[i]) { |
905 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); | |
906 | if (ret < 0) | |
907 | return ret; | |
2b97eabc | 908 | } |
85762e71 | 909 | |
946d92a1 | 910 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
911 | |
912 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
913 | if (data->widget) | |
914 | snd_soc_dapm_add_path(data->widget->dapm, | |
915 | data->widget, | |
916 | path->source, | |
917 | NULL, NULL); | |
2b97eabc RP |
918 | } |
919 | } | |
85762e71 SW |
920 | |
921 | return 0; | |
2b97eabc RP |
922 | } |
923 | ||
924 | /* create new dapm mux control */ | |
4b80b8c2 | 925 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 926 | { |
4b80b8c2 | 927 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 928 | struct snd_soc_dapm_path *path; |
d714f97c LPC |
929 | struct list_head *paths; |
930 | const char *type; | |
af46800b | 931 | int ret; |
2b97eabc | 932 | |
d714f97c LPC |
933 | switch (w->id) { |
934 | case snd_soc_dapm_mux: | |
935 | paths = &w->sources; | |
936 | type = "mux"; | |
937 | break; | |
938 | case snd_soc_dapm_demux: | |
939 | paths = &w->sinks; | |
940 | type = "demux"; | |
941 | break; | |
942 | default: | |
943 | return -EINVAL; | |
944 | } | |
945 | ||
af46800b SW |
946 | if (w->num_kcontrols != 1) { |
947 | dev_err(dapm->dev, | |
d714f97c | 948 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 949 | w->name); |
2b97eabc RP |
950 | return -EINVAL; |
951 | } | |
952 | ||
d714f97c LPC |
953 | if (list_empty(paths)) { |
954 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); | |
85762e71 | 955 | return -EINVAL; |
af46800b | 956 | } |
ce6120cc | 957 | |
946d92a1 | 958 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
959 | if (ret < 0) |
960 | return ret; | |
fad59888 | 961 | |
d714f97c LPC |
962 | if (w->id == snd_soc_dapm_mux) { |
963 | list_for_each_entry(path, &w->sources, list_sink) { | |
964 | if (path->name) | |
965 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
966 | } | |
967 | } else { | |
968 | list_for_each_entry(path, &w->sinks, list_source) { | |
969 | if (path->name) | |
970 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
971 | } | |
98407efc | 972 | } |
2b97eabc | 973 | |
af46800b | 974 | return 0; |
2b97eabc RP |
975 | } |
976 | ||
977 | /* create new dapm volume control */ | |
4b80b8c2 | 978 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 979 | { |
a6c65736 | 980 | if (w->num_kcontrols) |
f7d41ae8 | 981 | dev_err(w->dapm->dev, |
30a6a1a4 | 982 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 983 | |
a6c65736 | 984 | return 0; |
2b97eabc RP |
985 | } |
986 | ||
c6615082 NO |
987 | /* create new dapm dai link control */ |
988 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
989 | { | |
990 | int i, ret; | |
991 | struct snd_kcontrol *kcontrol; | |
992 | struct snd_soc_dapm_context *dapm = w->dapm; | |
993 | struct snd_card *card = dapm->card->snd_card; | |
994 | ||
995 | /* create control for links with > 1 config */ | |
996 | if (w->num_params <= 1) | |
997 | return 0; | |
998 | ||
999 | /* add kcontrol */ | |
1000 | for (i = 0; i < w->num_kcontrols; i++) { | |
1001 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1002 | w->name, NULL); | |
1003 | ret = snd_ctl_add(card, kcontrol); | |
1004 | if (ret < 0) { | |
1005 | dev_err(dapm->dev, | |
1006 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1007 | w->name, w->kcontrol_news[i].name, ret); | |
1008 | return ret; | |
1009 | } | |
1010 | kcontrol->private_data = w; | |
1011 | w->kcontrols[i] = kcontrol; | |
1012 | } | |
1013 | ||
1014 | return 0; | |
1015 | } | |
1016 | ||
9949788b MB |
1017 | /* We implement power down on suspend by checking the power state of |
1018 | * the ALSA card - when we are suspending the ALSA state for the card | |
1019 | * is set to D3. | |
1020 | */ | |
1021 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1022 | { | |
12ea2c78 | 1023 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1024 | |
f0fba2ad | 1025 | switch (level) { |
9949788b MB |
1026 | case SNDRV_CTL_POWER_D3hot: |
1027 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1028 | if (widget->ignore_suspend) |
30a6a1a4 | 1029 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1030 | widget->name); |
1547aba9 | 1031 | return widget->ignore_suspend; |
9949788b MB |
1032 | default: |
1033 | return 1; | |
1034 | } | |
1035 | } | |
1036 | ||
ec2e3031 LG |
1037 | /* add widget to list if it's not already in the list */ |
1038 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
1039 | struct snd_soc_dapm_widget *w) | |
1040 | { | |
1041 | struct snd_soc_dapm_widget_list *wlist; | |
1042 | int wlistsize, wlistentries, i; | |
1043 | ||
1044 | if (*list == NULL) | |
1045 | return -EINVAL; | |
1046 | ||
1047 | wlist = *list; | |
1048 | ||
1049 | /* is this widget already in the list */ | |
1050 | for (i = 0; i < wlist->num_widgets; i++) { | |
1051 | if (wlist->widgets[i] == w) | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | /* allocate some new space */ | |
1056 | wlistentries = wlist->num_widgets + 1; | |
1057 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
1058 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
1059 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
1060 | if (*list == NULL) { | |
30a6a1a4 | 1061 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
1062 | w->name); |
1063 | return -ENOMEM; | |
1064 | } | |
1065 | wlist = *list; | |
1066 | ||
1067 | /* insert the widget */ | |
30a6a1a4 | 1068 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
1069 | w->name, wlist->num_widgets); |
1070 | ||
1071 | wlist->widgets[wlist->num_widgets] = w; | |
1072 | wlist->num_widgets++; | |
1073 | return 1; | |
1074 | } | |
1075 | ||
2b97eabc RP |
1076 | /* |
1077 | * Recursively check for a completed path to an active or physically connected | |
1078 | * output widget. Returns number of complete paths. | |
1079 | */ | |
ec2e3031 LG |
1080 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
1081 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1082 | { |
1083 | struct snd_soc_dapm_path *path; | |
1084 | int con = 0; | |
1085 | ||
024dc078 MB |
1086 | if (widget->outputs >= 0) |
1087 | return widget->outputs; | |
1088 | ||
de02d078 MB |
1089 | DAPM_UPDATE_STAT(widget, path_checks); |
1090 | ||
6dd98b0a LPC |
1091 | if (widget->is_sink && widget->connected) { |
1092 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
1093 | return widget->outputs; | |
2b97eabc RP |
1094 | } |
1095 | ||
1096 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
1097 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1098 | ||
c1862c8b | 1099 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1100 | continue; |
1101 | ||
8af294b4 MB |
1102 | if (path->walking) |
1103 | return 1; | |
1104 | ||
ec2e3031 LG |
1105 | trace_snd_soc_dapm_output_path(widget, path); |
1106 | ||
7ddd4cd5 | 1107 | if (path->connect) { |
8af294b4 | 1108 | path->walking = 1; |
ec2e3031 LG |
1109 | |
1110 | /* do we need to add this widget to the list ? */ | |
1111 | if (list) { | |
1112 | int err; | |
1113 | err = dapm_list_add_widget(list, path->sink); | |
1114 | if (err < 0) { | |
30a6a1a4 LG |
1115 | dev_err(widget->dapm->dev, |
1116 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1117 | widget->name); |
8af294b4 | 1118 | path->walking = 0; |
ec2e3031 LG |
1119 | return con; |
1120 | } | |
1121 | } | |
1122 | ||
1123 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1124 | |
1125 | path->walking = 0; | |
2b97eabc RP |
1126 | } |
1127 | } | |
1128 | ||
024dc078 MB |
1129 | widget->outputs = con; |
1130 | ||
2b97eabc RP |
1131 | return con; |
1132 | } | |
1133 | ||
1134 | /* | |
1135 | * Recursively check for a completed path to an active or physically connected | |
1136 | * input widget. Returns number of complete paths. | |
1137 | */ | |
ec2e3031 LG |
1138 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1139 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1140 | { |
1141 | struct snd_soc_dapm_path *path; | |
1142 | int con = 0; | |
1143 | ||
024dc078 MB |
1144 | if (widget->inputs >= 0) |
1145 | return widget->inputs; | |
1146 | ||
de02d078 MB |
1147 | DAPM_UPDATE_STAT(widget, path_checks); |
1148 | ||
6dd98b0a LPC |
1149 | if (widget->is_source && widget->connected) { |
1150 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1151 | return widget->inputs; | |
2b97eabc RP |
1152 | } |
1153 | ||
1154 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1155 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1156 | ||
c1862c8b | 1157 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1158 | continue; |
1159 | ||
8af294b4 MB |
1160 | if (path->walking) |
1161 | return 1; | |
1162 | ||
ec2e3031 LG |
1163 | trace_snd_soc_dapm_input_path(widget, path); |
1164 | ||
7ddd4cd5 | 1165 | if (path->connect) { |
8af294b4 | 1166 | path->walking = 1; |
ec2e3031 LG |
1167 | |
1168 | /* do we need to add this widget to the list ? */ | |
1169 | if (list) { | |
1170 | int err; | |
90c6ce0d | 1171 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1172 | if (err < 0) { |
30a6a1a4 LG |
1173 | dev_err(widget->dapm->dev, |
1174 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1175 | widget->name); |
8af294b4 | 1176 | path->walking = 0; |
ec2e3031 LG |
1177 | return con; |
1178 | } | |
1179 | } | |
1180 | ||
1181 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1182 | |
1183 | path->walking = 0; | |
2b97eabc RP |
1184 | } |
1185 | } | |
1186 | ||
024dc078 MB |
1187 | widget->inputs = con; |
1188 | ||
2b97eabc RP |
1189 | return con; |
1190 | } | |
1191 | ||
ec2e3031 LG |
1192 | /** |
1193 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1194 | * @dai: the soc DAI. | |
1195 | * @stream: stream direction. | |
1196 | * @list: list of active widgets for this stream. | |
1197 | * | |
1198 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1199 | * the initial stream specified by name. This takes into account | |
1200 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1201 | * | |
1202 | * Returns the number of valid paths or negative error. | |
1203 | */ | |
1204 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1205 | struct snd_soc_dapm_widget_list **list) | |
1206 | { | |
313665b9 | 1207 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1208 | struct snd_soc_dapm_widget *w; |
ec2e3031 LG |
1209 | int paths; |
1210 | ||
1211 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1212 | |
1213 | /* | |
1214 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1215 | * to reset the cached number of inputs and outputs. | |
1216 | */ | |
1217 | list_for_each_entry(w, &card->widgets, list) { | |
1218 | w->inputs = -1; | |
1219 | w->outputs = -1; | |
1220 | } | |
ec2e3031 | 1221 | |
130897ac | 1222 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
ec2e3031 | 1223 | paths = is_connected_output_ep(dai->playback_widget, list); |
130897ac | 1224 | else |
d298caae | 1225 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
1226 | |
1227 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1228 | mutex_unlock(&card->dapm_mutex); |
1229 | ||
1230 | return paths; | |
1231 | } | |
1232 | ||
62ea874a MB |
1233 | /* |
1234 | * Handler for regulator supply widget. | |
1235 | */ | |
1236 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1237 | struct snd_kcontrol *kcontrol, int event) | |
1238 | { | |
c05b84d1 MB |
1239 | int ret; |
1240 | ||
eb270e98 MB |
1241 | soc_dapm_async_complete(w->dapm); |
1242 | ||
c05b84d1 | 1243 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1244 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1245 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1246 | if (ret != 0) |
1247 | dev_warn(w->dapm->dev, | |
30686c35 | 1248 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1249 | w->name, ret); |
1250 | } | |
1251 | ||
a3cc056b | 1252 | return regulator_enable(w->regulator); |
c05b84d1 | 1253 | } else { |
de9ba98b | 1254 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1255 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1256 | if (ret != 0) |
1257 | dev_warn(w->dapm->dev, | |
30686c35 | 1258 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1259 | w->name, ret); |
1260 | } | |
1261 | ||
a3cc056b | 1262 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1263 | } |
62ea874a MB |
1264 | } |
1265 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1266 | ||
d7e7eb91 OL |
1267 | /* |
1268 | * Handler for clock supply widget. | |
1269 | */ | |
1270 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1271 | struct snd_kcontrol *kcontrol, int event) | |
1272 | { | |
1273 | if (!w->clk) | |
1274 | return -EIO; | |
1275 | ||
eb270e98 MB |
1276 | soc_dapm_async_complete(w->dapm); |
1277 | ||
ec02995a | 1278 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1279 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1280 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1281 | } else { |
37c1b927 | 1282 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1283 | return 0; |
1284 | } | |
ec02995a | 1285 | #endif |
98b3cf12 | 1286 | return 0; |
d7e7eb91 OL |
1287 | } |
1288 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1289 | ||
d805002b MB |
1290 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1291 | { | |
9b8a83b2 MB |
1292 | if (w->power_checked) |
1293 | return w->new_power; | |
1294 | ||
d805002b | 1295 | if (w->force) |
9b8a83b2 | 1296 | w->new_power = 1; |
d805002b | 1297 | else |
9b8a83b2 MB |
1298 | w->new_power = w->power_check(w); |
1299 | ||
1300 | w->power_checked = true; | |
1301 | ||
1302 | return w->new_power; | |
d805002b MB |
1303 | } |
1304 | ||
cd0f2d47 MB |
1305 | /* Generic check to see if a widget should be powered. |
1306 | */ | |
1307 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1308 | { | |
1309 | int in, out; | |
1310 | ||
de02d078 MB |
1311 | DAPM_UPDATE_STAT(w, power_checks); |
1312 | ||
ec2e3031 | 1313 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1314 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1315 | return out != 0 && in != 0; |
1316 | } | |
1317 | ||
246d0a17 MB |
1318 | /* Check to see if a power supply is needed */ |
1319 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1320 | { | |
1321 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1322 | |
de02d078 MB |
1323 | DAPM_UPDATE_STAT(w, power_checks); |
1324 | ||
246d0a17 MB |
1325 | /* Check if one of our outputs is connected */ |
1326 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1327 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1328 | ||
bf3a9e13 MB |
1329 | if (path->weak) |
1330 | continue; | |
1331 | ||
215edda3 MB |
1332 | if (path->connected && |
1333 | !path->connected(path->source, path->sink)) | |
1334 | continue; | |
1335 | ||
f68d7e16 MB |
1336 | if (dapm_widget_power_check(path->sink)) |
1337 | return 1; | |
246d0a17 MB |
1338 | } |
1339 | ||
f68d7e16 | 1340 | return 0; |
246d0a17 MB |
1341 | } |
1342 | ||
35c64bca MB |
1343 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1344 | { | |
1345 | return 1; | |
1346 | } | |
1347 | ||
38357ab2 MB |
1348 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1349 | struct snd_soc_dapm_widget *b, | |
828a842f | 1350 | bool power_up) |
42aa3418 | 1351 | { |
828a842f MB |
1352 | int *sort; |
1353 | ||
1354 | if (power_up) | |
1355 | sort = dapm_up_seq; | |
1356 | else | |
1357 | sort = dapm_down_seq; | |
1358 | ||
38357ab2 MB |
1359 | if (sort[a->id] != sort[b->id]) |
1360 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1361 | if (a->subseq != b->subseq) { |
1362 | if (power_up) | |
1363 | return a->subseq - b->subseq; | |
1364 | else | |
1365 | return b->subseq - a->subseq; | |
1366 | } | |
b22ead2a MB |
1367 | if (a->reg != b->reg) |
1368 | return a->reg - b->reg; | |
84dab567 MB |
1369 | if (a->dapm != b->dapm) |
1370 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1371 | |
38357ab2 MB |
1372 | return 0; |
1373 | } | |
42aa3418 | 1374 | |
38357ab2 MB |
1375 | /* Insert a widget in order into a DAPM power sequence. */ |
1376 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1377 | struct list_head *list, | |
828a842f | 1378 | bool power_up) |
38357ab2 MB |
1379 | { |
1380 | struct snd_soc_dapm_widget *w; | |
1381 | ||
1382 | list_for_each_entry(w, list, power_list) | |
828a842f | 1383 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1384 | list_add_tail(&new_widget->power_list, &w->power_list); |
1385 | return; | |
1386 | } | |
1387 | ||
1388 | list_add_tail(&new_widget->power_list, list); | |
1389 | } | |
1390 | ||
95dd5cd6 | 1391 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1392 | struct snd_soc_dapm_widget *w, int event) |
1393 | { | |
68f89ad8 MB |
1394 | const char *ev_name; |
1395 | int power, ret; | |
1396 | ||
1397 | switch (event) { | |
1398 | case SND_SOC_DAPM_PRE_PMU: | |
1399 | ev_name = "PRE_PMU"; | |
1400 | power = 1; | |
1401 | break; | |
1402 | case SND_SOC_DAPM_POST_PMU: | |
1403 | ev_name = "POST_PMU"; | |
1404 | power = 1; | |
1405 | break; | |
1406 | case SND_SOC_DAPM_PRE_PMD: | |
1407 | ev_name = "PRE_PMD"; | |
1408 | power = 0; | |
1409 | break; | |
1410 | case SND_SOC_DAPM_POST_PMD: | |
1411 | ev_name = "POST_PMD"; | |
1412 | power = 0; | |
1413 | break; | |
80114129 MB |
1414 | case SND_SOC_DAPM_WILL_PMU: |
1415 | ev_name = "WILL_PMU"; | |
1416 | power = 1; | |
1417 | break; | |
1418 | case SND_SOC_DAPM_WILL_PMD: | |
1419 | ev_name = "WILL_PMD"; | |
1420 | power = 0; | |
1421 | break; | |
68f89ad8 | 1422 | default: |
a6ed0608 | 1423 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1424 | return; |
1425 | } | |
1426 | ||
39eb5fd1 | 1427 | if (w->new_power != power) |
68f89ad8 MB |
1428 | return; |
1429 | ||
1430 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1431 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1432 | w->name, ev_name); |
eb270e98 | 1433 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1434 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1435 | ret = w->event(w, NULL, event); |
84e90930 | 1436 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1437 | if (ret < 0) |
95dd5cd6 | 1438 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1439 | ev_name, w->name, ret); |
1440 | } | |
1441 | } | |
1442 | ||
b22ead2a | 1443 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1444 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1445 | struct list_head *pending) |
163cac06 | 1446 | { |
ce0fc93a | 1447 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1448 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1449 | int reg; |
b22ead2a MB |
1450 | unsigned int value = 0; |
1451 | unsigned int mask = 0; | |
b22ead2a | 1452 | |
ce0fc93a LPC |
1453 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1454 | reg = w->reg; | |
1455 | dapm = w->dapm; | |
b22ead2a MB |
1456 | |
1457 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1458 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1459 | w->power = w->new_power; |
b22ead2a | 1460 | |
de9ba98b LPC |
1461 | mask |= w->mask << w->shift; |
1462 | if (w->power) | |
1463 | value |= w->on_val << w->shift; | |
b22ead2a | 1464 | else |
de9ba98b | 1465 | value |= w->off_val << w->shift; |
b22ead2a | 1466 | |
ce0fc93a | 1467 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1468 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1469 | w->name, reg, value, mask); | |
81628103 | 1470 | |
68f89ad8 | 1471 | /* Check for events */ |
95dd5cd6 LPC |
1472 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1473 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1474 | } |
1475 | ||
1476 | if (reg >= 0) { | |
29376bc7 MB |
1477 | /* Any widget will do, they should all be updating the |
1478 | * same register. | |
1479 | */ | |
29376bc7 | 1480 | |
ce0fc93a | 1481 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1482 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1483 | value, mask, reg, card->pop_time); |
1484 | pop_wait(card->pop_time); | |
ce0fc93a | 1485 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1486 | } |
1487 | ||
81628103 | 1488 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1489 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1490 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1491 | } |
b22ead2a | 1492 | } |
42aa3418 | 1493 | |
b22ead2a MB |
1494 | /* Apply a DAPM power sequence. |
1495 | * | |
1496 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1497 | * order to minimise the number of writes to the device required | |
1498 | * multiple widgets will be updated in a single write where possible. | |
1499 | * Currently anything that requires more than a single write is not | |
1500 | * handled. | |
1501 | */ | |
95dd5cd6 LPC |
1502 | static void dapm_seq_run(struct snd_soc_card *card, |
1503 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1504 | { |
1505 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1506 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1507 | LIST_HEAD(pending); |
1508 | int cur_sort = -1; | |
20e4859d | 1509 | int cur_subseq = -1; |
b22ead2a | 1510 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1511 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1512 | int ret, i; |
828a842f MB |
1513 | int *sort; |
1514 | ||
1515 | if (power_up) | |
1516 | sort = dapm_up_seq; | |
1517 | else | |
1518 | sort = dapm_down_seq; | |
163cac06 | 1519 | |
b22ead2a MB |
1520 | list_for_each_entry_safe(w, n, list, power_list) { |
1521 | ret = 0; | |
1522 | ||
1523 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1524 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1525 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1526 | if (!list_empty(&pending)) |
95dd5cd6 | 1527 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1528 | |
474b62d6 MB |
1529 | if (cur_dapm && cur_dapm->seq_notifier) { |
1530 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1531 | if (sort[i] == cur_sort) | |
1532 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1533 | i, |
1534 | cur_subseq); | |
474b62d6 MB |
1535 | } |
1536 | ||
eb270e98 MB |
1537 | if (cur_dapm && w->dapm != cur_dapm) |
1538 | soc_dapm_async_complete(cur_dapm); | |
1539 | ||
b22ead2a MB |
1540 | INIT_LIST_HEAD(&pending); |
1541 | cur_sort = -1; | |
b0b3e6f8 | 1542 | cur_subseq = INT_MIN; |
b22ead2a | 1543 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1544 | cur_dapm = NULL; |
b22ead2a MB |
1545 | } |
1546 | ||
163cac06 MB |
1547 | switch (w->id) { |
1548 | case snd_soc_dapm_pre: | |
1549 | if (!w->event) | |
b22ead2a MB |
1550 | list_for_each_entry_safe_continue(w, n, list, |
1551 | power_list); | |
163cac06 | 1552 | |
b22ead2a | 1553 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1554 | ret = w->event(w, |
1555 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1556 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1557 | ret = w->event(w, |
1558 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1559 | break; |
1560 | ||
1561 | case snd_soc_dapm_post: | |
1562 | if (!w->event) | |
b22ead2a MB |
1563 | list_for_each_entry_safe_continue(w, n, list, |
1564 | power_list); | |
163cac06 | 1565 | |
b22ead2a | 1566 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1567 | ret = w->event(w, |
1568 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1569 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1570 | ret = w->event(w, |
1571 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1572 | break; |
1573 | ||
b22ead2a | 1574 | default: |
81628103 MB |
1575 | /* Queue it up for application */ |
1576 | cur_sort = sort[w->id]; | |
20e4859d | 1577 | cur_subseq = w->subseq; |
81628103 | 1578 | cur_reg = w->reg; |
7be31be8 | 1579 | cur_dapm = w->dapm; |
81628103 MB |
1580 | list_move(&w->power_list, &pending); |
1581 | break; | |
163cac06 | 1582 | } |
b22ead2a MB |
1583 | |
1584 | if (ret < 0) | |
f7d41ae8 | 1585 | dev_err(w->dapm->dev, |
30a6a1a4 | 1586 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1587 | } |
b22ead2a MB |
1588 | |
1589 | if (!list_empty(&pending)) | |
95dd5cd6 | 1590 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1591 | |
1592 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1593 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1594 | if (sort[i] == cur_sort) | |
1595 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1596 | i, cur_subseq); |
474b62d6 | 1597 | } |
eb270e98 MB |
1598 | |
1599 | list_for_each_entry(d, &card->dapm_list, list) { | |
1600 | soc_dapm_async_complete(d); | |
1601 | } | |
42aa3418 MB |
1602 | } |
1603 | ||
95dd5cd6 | 1604 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1605 | { |
95dd5cd6 | 1606 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1607 | struct snd_soc_dapm_widget_list *wlist; |
1608 | struct snd_soc_dapm_widget *w = NULL; | |
1609 | unsigned int wi; | |
97404f2e MB |
1610 | int ret; |
1611 | ||
57295073 | 1612 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1613 | return; |
1614 | ||
e84357f7 | 1615 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1616 | |
ce6cfaf1 LPC |
1617 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1618 | w = wlist->widgets[wi]; | |
1619 | ||
1620 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1621 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1622 | if (ret != 0) | |
95dd5cd6 | 1623 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1624 | w->name, ret); |
1625 | } | |
97404f2e MB |
1626 | } |
1627 | ||
ce6cfaf1 LPC |
1628 | if (!w) |
1629 | return; | |
1630 | ||
ce0fc93a LPC |
1631 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1632 | update->val); | |
97404f2e | 1633 | if (ret < 0) |
95dd5cd6 | 1634 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1635 | w->name, ret); |
97404f2e | 1636 | |
ce6cfaf1 LPC |
1637 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1638 | w = wlist->widgets[wi]; | |
1639 | ||
1640 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1641 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1642 | if (ret != 0) | |
95dd5cd6 | 1643 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1644 | w->name, ret); |
1645 | } | |
97404f2e MB |
1646 | } |
1647 | } | |
1648 | ||
9d0624a7 MB |
1649 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1650 | * they're changing state. | |
1651 | */ | |
1652 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1653 | { | |
1654 | struct snd_soc_dapm_context *d = data; | |
1655 | int ret; | |
1656 | ||
56fba41f MB |
1657 | /* If we're off and we're not supposed to be go into STANDBY */ |
1658 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1659 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1660 | if (d->dev) |
1661 | pm_runtime_get_sync(d->dev); | |
1662 | ||
9d0624a7 MB |
1663 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1664 | if (ret != 0) | |
1665 | dev_err(d->dev, | |
30a6a1a4 | 1666 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1667 | } |
1668 | ||
ce85a4d7 LPC |
1669 | /* Prepare for a transition to ON or away from ON */ |
1670 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1671 | d->bias_level != SND_SOC_BIAS_ON) || | |
1672 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1673 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1674 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1675 | if (ret != 0) | |
1676 | dev_err(d->dev, | |
30a6a1a4 | 1677 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1678 | } |
1679 | } | |
1680 | ||
1681 | /* Async callback run prior to DAPM sequences - brings to their final | |
1682 | * state. | |
1683 | */ | |
1684 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1685 | { | |
1686 | struct snd_soc_dapm_context *d = data; | |
1687 | int ret; | |
1688 | ||
1689 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1690 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1691 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1692 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1693 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1694 | if (ret != 0) | |
30a6a1a4 | 1695 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1696 | ret); |
1697 | } | |
97404f2e | 1698 | |
9d0624a7 | 1699 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1700 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1701 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1702 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1703 | if (ret != 0) | |
30a6a1a4 LG |
1704 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1705 | ret); | |
f1aac484 MB |
1706 | |
1707 | if (d->dev) | |
fb644e9c | 1708 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1709 | } |
1710 | ||
1711 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1712 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1713 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1714 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1715 | if (ret != 0) | |
30a6a1a4 | 1716 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1717 | ret); |
1718 | } | |
1719 | } | |
97404f2e | 1720 | |
fe4fda5d MB |
1721 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1722 | bool power, bool connect) | |
1723 | { | |
1724 | /* If a connection is being made or broken then that update | |
1725 | * will have marked the peer dirty, otherwise the widgets are | |
1726 | * not connected and this update has no impact. */ | |
1727 | if (!connect) | |
1728 | return; | |
1729 | ||
1730 | /* If the peer is already in the state we're moving to then we | |
1731 | * won't have an impact on it. */ | |
1732 | if (power != peer->power) | |
75c1f891 | 1733 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1734 | } |
1735 | ||
05623c43 MB |
1736 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1737 | struct list_head *up_list, | |
1738 | struct list_head *down_list) | |
1739 | { | |
db432b41 MB |
1740 | struct snd_soc_dapm_path *path; |
1741 | ||
05623c43 MB |
1742 | if (w->power == power) |
1743 | return; | |
1744 | ||
1745 | trace_snd_soc_dapm_widget_power(w, power); | |
1746 | ||
db432b41 | 1747 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1748 | * also. |
db432b41 | 1749 | */ |
7ddd4cd5 LPC |
1750 | list_for_each_entry(path, &w->sources, list_sink) |
1751 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1752 | ||
6dd98b0a LPC |
1753 | /* Supplies can't affect their outputs, only their inputs */ |
1754 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1755 | list_for_each_entry(path, &w->sinks, list_source) |
1756 | dapm_widget_set_peer_power(path->sink, power, | |
1757 | path->connect); | |
db432b41 MB |
1758 | } |
1759 | ||
05623c43 MB |
1760 | if (power) |
1761 | dapm_seq_insert(w, up_list, true); | |
1762 | else | |
1763 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1764 | } |
1765 | ||
7c81beb0 MB |
1766 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1767 | struct list_head *up_list, | |
1768 | struct list_head *down_list) | |
1769 | { | |
7c81beb0 MB |
1770 | int power; |
1771 | ||
1772 | switch (w->id) { | |
1773 | case snd_soc_dapm_pre: | |
1774 | dapm_seq_insert(w, down_list, false); | |
1775 | break; | |
1776 | case snd_soc_dapm_post: | |
1777 | dapm_seq_insert(w, up_list, true); | |
1778 | break; | |
1779 | ||
1780 | default: | |
d805002b | 1781 | power = dapm_widget_power_check(w); |
7c81beb0 | 1782 | |
05623c43 | 1783 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1784 | break; |
1785 | } | |
1786 | } | |
1787 | ||
86dbf2ac LPC |
1788 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1789 | { | |
1790 | if (dapm->idle_bias_off) | |
1791 | return true; | |
1792 | ||
1793 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1794 | case SNDRV_CTL_POWER_D3hot: | |
1795 | case SNDRV_CTL_POWER_D3cold: | |
1796 | return dapm->suspend_bias_off; | |
1797 | default: | |
1798 | break; | |
1799 | } | |
1800 | ||
1801 | return false; | |
1802 | } | |
1803 | ||
2b97eabc RP |
1804 | /* |
1805 | * Scan each dapm widget for complete audio path. | |
1806 | * A complete path is a route that has valid endpoints i.e.:- | |
1807 | * | |
1808 | * o DAC to output pin. | |
1809 | * o Input Pin to ADC. | |
1810 | * o Input pin to Output pin (bypass, sidetone) | |
1811 | * o DAC to ADC (loopback). | |
1812 | */ | |
95dd5cd6 | 1813 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1814 | { |
1815 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1816 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1817 | LIST_HEAD(up_list); |
1818 | LIST_HEAD(down_list); | |
2955b47d | 1819 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1820 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1821 | |
f9fa2b18 MB |
1822 | lockdep_assert_held(&card->dapm_mutex); |
1823 | ||
84e90930 MB |
1824 | trace_snd_soc_dapm_start(card); |
1825 | ||
56fba41f | 1826 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1827 | if (dapm_idle_bias_off(d)) |
497098be MB |
1828 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1829 | else | |
1830 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1831 | } |
7be31be8 | 1832 | |
6c120e19 | 1833 | dapm_reset(card); |
9b8a83b2 | 1834 | |
6d3ddc81 | 1835 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1836 | * lists indicating if they should be powered up or down. We |
1837 | * only check widgets that have been flagged as dirty but note | |
1838 | * that new widgets may be added to the dirty list while we | |
1839 | * iterate. | |
6d3ddc81 | 1840 | */ |
db432b41 | 1841 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1842 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1843 | } |
1844 | ||
f9de6d74 | 1845 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1846 | switch (w->id) { |
1847 | case snd_soc_dapm_pre: | |
1848 | case snd_soc_dapm_post: | |
1849 | /* These widgets always need to be powered */ | |
1850 | break; | |
1851 | default: | |
1852 | list_del_init(&w->dirty); | |
1853 | break; | |
1854 | } | |
db432b41 | 1855 | |
39eb5fd1 | 1856 | if (w->new_power) { |
f9de6d74 MB |
1857 | d = w->dapm; |
1858 | ||
1859 | /* Supplies and micbiases only bring the | |
1860 | * context up to STANDBY as unless something | |
1861 | * else is active and passing audio they | |
afe62367 MB |
1862 | * generally don't require full power. Signal |
1863 | * generators are virtual pins and have no | |
1864 | * power impact themselves. | |
f9de6d74 MB |
1865 | */ |
1866 | switch (w->id) { | |
afe62367 | 1867 | case snd_soc_dapm_siggen: |
da83fea6 | 1868 | case snd_soc_dapm_vmid: |
afe62367 | 1869 | break; |
f9de6d74 | 1870 | case snd_soc_dapm_supply: |
62ea874a | 1871 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1872 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1873 | case snd_soc_dapm_micbias: |
1874 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1875 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1876 | break; | |
1877 | default: | |
1878 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1879 | break; | |
1880 | } | |
1881 | } | |
1882 | ||
1883 | } | |
1884 | ||
85a843c5 MB |
1885 | /* Force all contexts in the card to the same bias state if |
1886 | * they're not ground referenced. | |
1887 | */ | |
56fba41f | 1888 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1889 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1890 | if (d->target_bias_level > bias) |
1891 | bias = d->target_bias_level; | |
52ba67bf | 1892 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1893 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1894 | d->target_bias_level = bias; |
52ba67bf | 1895 | |
de02d078 | 1896 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1897 | |
17282ba4 XX |
1898 | /* Run card bias changes at first */ |
1899 | dapm_pre_sequence_async(&card->dapm, 0); | |
1900 | /* Run other bias changes in parallel */ | |
1901 | list_for_each_entry(d, &card->dapm_list, list) { | |
1902 | if (d != &card->dapm) | |
1903 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1904 | &async_domain); | |
1905 | } | |
9d0624a7 | 1906 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1907 | |
cf1f7c6e | 1908 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1909 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1910 | } |
1911 | ||
cf1f7c6e | 1912 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1913 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1914 | } |
1915 | ||
6d3ddc81 | 1916 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1917 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1918 | |
95dd5cd6 | 1919 | dapm_widget_update(card); |
97404f2e | 1920 | |
6d3ddc81 | 1921 | /* Now power up. */ |
95dd5cd6 | 1922 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1923 | |
9d0624a7 | 1924 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1925 | list_for_each_entry(d, &card->dapm_list, list) { |
1926 | if (d != &card->dapm) | |
1927 | async_schedule_domain(dapm_post_sequence_async, d, | |
1928 | &async_domain); | |
1929 | } | |
9d0624a7 | 1930 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1931 | /* Run card bias changes at last */ |
1932 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1933 | |
8078d87f LG |
1934 | /* do we need to notify any clients that DAPM event is complete */ |
1935 | list_for_each_entry(d, &card->dapm_list, list) { | |
1936 | if (d->stream_event) | |
1937 | d->stream_event(d, event); | |
1938 | } | |
1939 | ||
95dd5cd6 | 1940 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1941 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1942 | pop_wait(card->pop_time); |
cb507e7e | 1943 | |
84e90930 MB |
1944 | trace_snd_soc_dapm_done(card); |
1945 | ||
42aa3418 | 1946 | return 0; |
2b97eabc RP |
1947 | } |
1948 | ||
79fb9387 | 1949 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1950 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1951 | char __user *user_buf, | |
1952 | size_t count, loff_t *ppos) | |
1953 | { | |
1954 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1955 | struct snd_soc_card *card = w->dapm->card; |
79fb9387 MB |
1956 | char *buf; |
1957 | int in, out; | |
1958 | ssize_t ret; | |
1959 | struct snd_soc_dapm_path *p = NULL; | |
1960 | ||
1961 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1962 | if (!buf) | |
1963 | return -ENOMEM; | |
1964 | ||
e50b1e06 LPC |
1965 | mutex_lock(&card->dapm_mutex); |
1966 | ||
c1862c8b LPC |
1967 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1968 | if (w->is_supply) { | |
1969 | in = 0; | |
1970 | out = 0; | |
1971 | } else { | |
1972 | in = is_connected_input_ep(w, NULL); | |
1973 | out = is_connected_output_ep(w, NULL); | |
1974 | } | |
79fb9387 | 1975 | |
f13ebada MB |
1976 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1977 | w->name, w->power ? "On" : "Off", | |
1978 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1979 | |
d033c36a MB |
1980 | if (w->reg >= 0) |
1981 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1982 | " - R%d(0x%x) mask 0x%x", |
1983 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1984 | |
1985 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1986 | ||
3eef08ba MB |
1987 | if (w->sname) |
1988 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1989 | w->sname, | |
1990 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1991 | |
1992 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1993 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1994 | continue; |
1995 | ||
79fb9387 MB |
1996 | if (p->connect) |
1997 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1998 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1999 | p->name ? p->name : "static", |
2000 | p->source->name); | |
2001 | } | |
2002 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
2003 | if (p->connected && !p->connected(w, p->sink)) |
2004 | continue; | |
2005 | ||
79fb9387 MB |
2006 | if (p->connect) |
2007 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 2008 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
2009 | p->name ? p->name : "static", |
2010 | p->sink->name); | |
2011 | } | |
2012 | ||
e50b1e06 LPC |
2013 | mutex_unlock(&card->dapm_mutex); |
2014 | ||
79fb9387 MB |
2015 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2016 | ||
2017 | kfree(buf); | |
2018 | return ret; | |
2019 | } | |
2020 | ||
2021 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2022 | .open = simple_open, |
79fb9387 | 2023 | .read = dapm_widget_power_read_file, |
6038f373 | 2024 | .llseek = default_llseek, |
79fb9387 MB |
2025 | }; |
2026 | ||
ef49e4fa MB |
2027 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2028 | size_t count, loff_t *ppos) | |
2029 | { | |
2030 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2031 | char *level; | |
2032 | ||
2033 | switch (dapm->bias_level) { | |
2034 | case SND_SOC_BIAS_ON: | |
2035 | level = "On\n"; | |
2036 | break; | |
2037 | case SND_SOC_BIAS_PREPARE: | |
2038 | level = "Prepare\n"; | |
2039 | break; | |
2040 | case SND_SOC_BIAS_STANDBY: | |
2041 | level = "Standby\n"; | |
2042 | break; | |
2043 | case SND_SOC_BIAS_OFF: | |
2044 | level = "Off\n"; | |
2045 | break; | |
2046 | default: | |
a6ed0608 | 2047 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2048 | level = "Unknown\n"; |
2049 | break; | |
2050 | } | |
2051 | ||
2052 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2053 | strlen(level)); | |
2054 | } | |
2055 | ||
2056 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2057 | .open = simple_open, |
ef49e4fa MB |
2058 | .read = dapm_bias_read_file, |
2059 | .llseek = default_llseek, | |
2060 | }; | |
2061 | ||
8eecaf62 LPC |
2062 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2063 | struct dentry *parent) | |
79fb9387 | 2064 | { |
79fb9387 MB |
2065 | struct dentry *d; |
2066 | ||
6553bf06 LPC |
2067 | if (!parent) |
2068 | return; | |
2069 | ||
8eecaf62 LPC |
2070 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2071 | ||
2072 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2073 | dev_warn(dapm->dev, |
30a6a1a4 | 2074 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2075 | return; |
8eecaf62 | 2076 | } |
79fb9387 | 2077 | |
ef49e4fa MB |
2078 | d = debugfs_create_file("bias_level", 0444, |
2079 | dapm->debugfs_dapm, dapm, | |
2080 | &dapm_bias_fops); | |
2081 | if (!d) | |
2082 | dev_warn(dapm->dev, | |
2083 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2084 | } |
ef49e4fa | 2085 | |
d5d1e0be LPC |
2086 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2087 | { | |
2088 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2089 | struct dentry *d; | |
79fb9387 | 2090 | |
d5d1e0be LPC |
2091 | if (!dapm->debugfs_dapm || !w->name) |
2092 | return; | |
2093 | ||
2094 | d = debugfs_create_file(w->name, 0444, | |
2095 | dapm->debugfs_dapm, w, | |
2096 | &dapm_widget_power_fops); | |
2097 | if (!d) | |
2098 | dev_warn(w->dapm->dev, | |
2099 | "ASoC: Failed to create %s debugfs file\n", | |
2100 | w->name); | |
79fb9387 | 2101 | } |
d5d1e0be | 2102 | |
6c45e126 LPC |
2103 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2104 | { | |
2105 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2106 | } | |
2107 | ||
79fb9387 | 2108 | #else |
8eecaf62 LPC |
2109 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2110 | struct dentry *parent) | |
79fb9387 MB |
2111 | { |
2112 | } | |
d5d1e0be LPC |
2113 | |
2114 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2115 | { | |
2116 | } | |
2117 | ||
6c45e126 LPC |
2118 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2119 | { | |
2120 | } | |
2121 | ||
79fb9387 MB |
2122 | #endif |
2123 | ||
4a201948 LPC |
2124 | /* |
2125 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2126 | * @path: The path to update | |
2127 | * @connect: The new connect state of the path. True if the path is connected, | |
2128 | * false if it is disconneted. | |
2129 | * @reason: The reason why the path changed (for debugging only) | |
2130 | */ | |
2131 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2132 | bool connect, const char *reason) | |
2133 | { | |
2134 | if (path->connect == connect) | |
2135 | return; | |
2136 | ||
2137 | path->connect = connect; | |
2138 | dapm_mark_dirty(path->source, reason); | |
2139 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2140 | dapm_path_invalidate(path); |
4a201948 LPC |
2141 | } |
2142 | ||
2b97eabc | 2143 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2144 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2145 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2146 | { |
2147 | struct snd_soc_dapm_path *path; | |
2148 | int found = 0; | |
4a201948 | 2149 | bool connect; |
2b97eabc | 2150 | |
f9fa2b18 MB |
2151 | lockdep_assert_held(&card->dapm_mutex); |
2152 | ||
2b97eabc | 2153 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2154 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2155 | found = 1; |
2156 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2157 | if (!(strcmp(path->name, e->texts[mux]))) |
2158 | connect = true; | |
2159 | else | |
2160 | connect = false; | |
2161 | ||
2162 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2163 | } |
2164 | ||
ce6cfaf1 | 2165 | if (found) |
95dd5cd6 | 2166 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2167 | |
618dae11 | 2168 | return found; |
2b97eabc | 2169 | } |
4edbb345 | 2170 | |
ce6cfaf1 | 2171 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2172 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2173 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2174 | { |
ce6cfaf1 | 2175 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2176 | int ret; |
2177 | ||
3cd04343 | 2178 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2179 | card->update = update; |
95dd5cd6 | 2180 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2181 | card->update = NULL; |
4edbb345 | 2182 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2183 | if (ret > 0) |
c3f48ae6 | 2184 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2185 | return ret; |
2186 | } | |
40f02cd9 | 2187 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2188 | |
1b075e3f | 2189 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2190 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2191 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2192 | { |
2193 | struct snd_soc_dapm_path *path; | |
2194 | int found = 0; | |
2195 | ||
f9fa2b18 MB |
2196 | lockdep_assert_held(&card->dapm_mutex); |
2197 | ||
2b97eabc | 2198 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2199 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2200 | found = 1; |
4a201948 | 2201 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2202 | } |
2203 | ||
ce6cfaf1 | 2204 | if (found) |
95dd5cd6 | 2205 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2206 | |
618dae11 | 2207 | return found; |
2b97eabc | 2208 | } |
4edbb345 | 2209 | |
ce6cfaf1 | 2210 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2211 | struct snd_kcontrol *kcontrol, int connect, |
2212 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2213 | { |
ce6cfaf1 | 2214 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2215 | int ret; |
2216 | ||
3cd04343 | 2217 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2218 | card->update = update; |
95dd5cd6 | 2219 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2220 | card->update = NULL; |
4edbb345 | 2221 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2222 | if (ret > 0) |
c3f48ae6 | 2223 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2224 | return ret; |
2225 | } | |
40f02cd9 | 2226 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2227 | |
44ba2641 | 2228 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2229 | { |
2b97eabc RP |
2230 | struct snd_soc_dapm_widget *w; |
2231 | int count = 0; | |
2232 | char *state = "not set"; | |
2233 | ||
00200107 | 2234 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2235 | if (w->dapm != &codec->dapm) |
2236 | continue; | |
2b97eabc RP |
2237 | |
2238 | /* only display widgets that burnm power */ | |
2239 | switch (w->id) { | |
2240 | case snd_soc_dapm_hp: | |
2241 | case snd_soc_dapm_mic: | |
2242 | case snd_soc_dapm_spk: | |
2243 | case snd_soc_dapm_line: | |
2244 | case snd_soc_dapm_micbias: | |
2245 | case snd_soc_dapm_dac: | |
2246 | case snd_soc_dapm_adc: | |
2247 | case snd_soc_dapm_pga: | |
d88429a6 | 2248 | case snd_soc_dapm_out_drv: |
2b97eabc | 2249 | case snd_soc_dapm_mixer: |
ca9c1aae | 2250 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2251 | case snd_soc_dapm_supply: |
62ea874a | 2252 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2253 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2254 | if (w->name) |
2255 | count += sprintf(buf + count, "%s: %s\n", | |
2256 | w->name, w->power ? "On":"Off"); | |
2257 | break; | |
2258 | default: | |
2259 | break; | |
2260 | } | |
2261 | } | |
2262 | ||
ce6120cc | 2263 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2264 | case SND_SOC_BIAS_ON: |
2265 | state = "On"; | |
2b97eabc | 2266 | break; |
0be9898a MB |
2267 | case SND_SOC_BIAS_PREPARE: |
2268 | state = "Prepare"; | |
2b97eabc | 2269 | break; |
0be9898a MB |
2270 | case SND_SOC_BIAS_STANDBY: |
2271 | state = "Standby"; | |
2b97eabc | 2272 | break; |
0be9898a MB |
2273 | case SND_SOC_BIAS_OFF: |
2274 | state = "Off"; | |
2b97eabc RP |
2275 | break; |
2276 | } | |
2277 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2278 | ||
2279 | return count; | |
2280 | } | |
2281 | ||
44ba2641 BC |
2282 | /* show dapm widget status in sys fs */ |
2283 | static ssize_t dapm_widget_show(struct device *dev, | |
2284 | struct device_attribute *attr, char *buf) | |
2285 | { | |
2286 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2287 | int i, count = 0; | |
2288 | ||
e50b1e06 LPC |
2289 | mutex_lock(&rtd->card->dapm_mutex); |
2290 | ||
44ba2641 BC |
2291 | for (i = 0; i < rtd->num_codecs; i++) { |
2292 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2293 | count += dapm_widget_show_codec(codec, buf + count); | |
2294 | } | |
2295 | ||
e50b1e06 LPC |
2296 | mutex_unlock(&rtd->card->dapm_mutex); |
2297 | ||
44ba2641 BC |
2298 | return count; |
2299 | } | |
2300 | ||
2b97eabc RP |
2301 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2302 | ||
d29697dc TI |
2303 | struct attribute *soc_dapm_dev_attrs[] = { |
2304 | &dev_attr_dapm_widget.attr, | |
2305 | NULL | |
2306 | }; | |
2b97eabc | 2307 | |
8872293f LPC |
2308 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2309 | { | |
2310 | list_del(&path->list_sink); | |
2311 | list_del(&path->list_source); | |
5106b92f | 2312 | list_del(&path->list_kcontrol); |
8872293f | 2313 | list_del(&path->list); |
8872293f LPC |
2314 | kfree(path); |
2315 | } | |
2316 | ||
2b97eabc | 2317 | /* free all dapm widgets and resources */ |
ce6120cc | 2318 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2319 | { |
2320 | struct snd_soc_dapm_widget *w, *next_w; | |
2321 | struct snd_soc_dapm_path *p, *next_p; | |
2322 | ||
97c866de JN |
2323 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2324 | if (w->dapm != dapm) | |
2325 | continue; | |
2b97eabc | 2326 | list_del(&w->list); |
8ddab3f5 JN |
2327 | /* |
2328 | * remove source and sink paths associated to this widget. | |
2329 | * While removing the path, remove reference to it from both | |
2330 | * source and sink widgets so that path is removed only once. | |
2331 | */ | |
8872293f LPC |
2332 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2333 | dapm_free_path(p); | |
2334 | ||
2335 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2336 | dapm_free_path(p); | |
2337 | ||
fad59888 | 2338 | kfree(w->kcontrols); |
ead9b919 | 2339 | kfree(w->name); |
2b97eabc RP |
2340 | kfree(w); |
2341 | } | |
2b97eabc RP |
2342 | } |
2343 | ||
91a5fca4 LPC |
2344 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2345 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2346 | bool search_other_contexts) | |
a5302181 LG |
2347 | { |
2348 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2349 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2350 | |
97c866de | 2351 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2352 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2353 | if (w->dapm == dapm) |
2354 | return w; | |
2355 | else | |
2356 | fallback = w; | |
a5302181 LG |
2357 | } |
2358 | } | |
2359 | ||
91a5fca4 LPC |
2360 | if (search_other_contexts) |
2361 | return fallback; | |
2362 | ||
2363 | return NULL; | |
2364 | } | |
2365 | ||
2366 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2367 | const char *pin, int status) | |
2368 | { | |
2369 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2370 | ||
f9fa2b18 MB |
2371 | dapm_assert_locked(dapm); |
2372 | ||
91a5fca4 | 2373 | if (!w) { |
30a6a1a4 | 2374 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2375 | return -EINVAL; |
0d86733c MB |
2376 | } |
2377 | ||
92a99ea4 | 2378 | if (w->connected != status) { |
1a8b2d9d | 2379 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2380 | dapm_widget_invalidate_input_paths(w); |
2381 | dapm_widget_invalidate_output_paths(w); | |
2382 | } | |
1a8b2d9d | 2383 | |
91a5fca4 LPC |
2384 | w->connected = status; |
2385 | if (status == 0) | |
2386 | w->force = 0; | |
2387 | ||
2388 | return 0; | |
a5302181 LG |
2389 | } |
2390 | ||
2b97eabc | 2391 | /** |
3eb29dfb | 2392 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2393 | * @dapm: DAPM context |
2b97eabc RP |
2394 | * |
2395 | * Walks all dapm audio paths and powers widgets according to their | |
2396 | * stream or path usage. | |
2397 | * | |
3eb29dfb CK |
2398 | * Requires external locking. |
2399 | * | |
2b97eabc RP |
2400 | * Returns 0 for success. |
2401 | */ | |
3eb29dfb | 2402 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2403 | { |
4f4c0072 MB |
2404 | /* |
2405 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2406 | * silly DAPM runs during card startup. | |
2407 | */ | |
2408 | if (!dapm->card || !dapm->card->instantiated) | |
2409 | return 0; | |
2410 | ||
3eb29dfb CK |
2411 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2412 | } | |
2413 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2414 | ||
2415 | /** | |
2416 | * snd_soc_dapm_sync - scan and power dapm paths | |
2417 | * @dapm: DAPM context | |
2418 | * | |
2419 | * Walks all dapm audio paths and powers widgets according to their | |
2420 | * stream or path usage. | |
2421 | * | |
2422 | * Returns 0 for success. | |
2423 | */ | |
2424 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2425 | { | |
2426 | int ret; | |
2427 | ||
3cd04343 | 2428 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2429 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2430 | mutex_unlock(&dapm->card->dapm_mutex); |
2431 | return ret; | |
2b97eabc | 2432 | } |
a5302181 | 2433 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2434 | |
6dd98b0a LPC |
2435 | /* |
2436 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2437 | * @w: The widget for which to update the flags | |
2438 | * | |
2439 | * Some widgets have a dynamic category which depends on which neighbors they | |
2440 | * are connected to. This function update the category for these widgets. | |
2441 | * | |
2442 | * This function must be called whenever a path is added or removed to a widget. | |
2443 | */ | |
2444 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2445 | { | |
2446 | struct snd_soc_dapm_path *p; | |
2447 | ||
2448 | switch (w->id) { | |
2449 | case snd_soc_dapm_input: | |
86d75003 LPC |
2450 | /* On a fully routed card a input is never a source */ |
2451 | if (w->dapm->card->fully_routed) | |
2452 | break; | |
6dd98b0a LPC |
2453 | w->is_source = 1; |
2454 | list_for_each_entry(p, &w->sources, list_sink) { | |
2455 | if (p->source->id == snd_soc_dapm_micbias || | |
2456 | p->source->id == snd_soc_dapm_mic || | |
2457 | p->source->id == snd_soc_dapm_line || | |
2458 | p->source->id == snd_soc_dapm_output) { | |
2459 | w->is_source = 0; | |
2460 | break; | |
2461 | } | |
2462 | } | |
2463 | break; | |
2464 | case snd_soc_dapm_output: | |
86d75003 LPC |
2465 | /* On a fully routed card a output is never a sink */ |
2466 | if (w->dapm->card->fully_routed) | |
2467 | break; | |
6dd98b0a LPC |
2468 | w->is_sink = 1; |
2469 | list_for_each_entry(p, &w->sinks, list_source) { | |
2470 | if (p->sink->id == snd_soc_dapm_spk || | |
2471 | p->sink->id == snd_soc_dapm_hp || | |
2472 | p->sink->id == snd_soc_dapm_line || | |
2473 | p->sink->id == snd_soc_dapm_input) { | |
2474 | w->is_sink = 0; | |
2475 | break; | |
2476 | } | |
2477 | } | |
2478 | break; | |
2479 | case snd_soc_dapm_line: | |
2480 | w->is_sink = !list_empty(&w->sources); | |
2481 | w->is_source = !list_empty(&w->sinks); | |
2482 | break; | |
2483 | default: | |
2484 | break; | |
2485 | } | |
2486 | } | |
2487 | ||
d714f97c LPC |
2488 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2489 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2490 | const char *control) | |
2491 | { | |
2492 | bool dynamic_source = false; | |
2493 | bool dynamic_sink = false; | |
2494 | ||
2495 | if (!control) | |
2496 | return 0; | |
2497 | ||
2498 | switch (source->id) { | |
2499 | case snd_soc_dapm_demux: | |
2500 | dynamic_source = true; | |
2501 | break; | |
2502 | default: | |
2503 | break; | |
2504 | } | |
2505 | ||
2506 | switch (sink->id) { | |
2507 | case snd_soc_dapm_mux: | |
2508 | case snd_soc_dapm_switch: | |
2509 | case snd_soc_dapm_mixer: | |
2510 | case snd_soc_dapm_mixer_named_ctl: | |
2511 | dynamic_sink = true; | |
2512 | break; | |
2513 | default: | |
2514 | break; | |
2515 | } | |
2516 | ||
2517 | if (dynamic_source && dynamic_sink) { | |
2518 | dev_err(dapm->dev, | |
2519 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2520 | source->name, control, sink->name); | |
2521 | return -EINVAL; | |
2522 | } else if (!dynamic_source && !dynamic_sink) { | |
2523 | dev_err(dapm->dev, | |
2524 | "Control not supported for path %s -> [%s] -> %s\n", | |
2525 | source->name, control, sink->name); | |
2526 | return -EINVAL; | |
2527 | } | |
2528 | ||
2529 | return 0; | |
2530 | } | |
2531 | ||
2553628e LPC |
2532 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2533 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2534 | const char *control, | |
2535 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2536 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2537 | { |
2538 | struct snd_soc_dapm_path *path; | |
2553628e | 2539 | int ret; |
2b97eabc | 2540 | |
e409dfbf LPC |
2541 | if (wsink->is_supply && !wsource->is_supply) { |
2542 | dev_err(dapm->dev, | |
2543 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2544 | wsource->name, wsink->name); | |
2545 | return -EINVAL; | |
2546 | } | |
2547 | ||
2548 | if (connected && !wsource->is_supply) { | |
2549 | dev_err(dapm->dev, | |
2550 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2551 | wsource->name, wsink->name); | |
2552 | return -EINVAL; | |
2553 | } | |
2554 | ||
2555 | if (wsource->is_supply && control) { | |
2556 | dev_err(dapm->dev, | |
2557 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2558 | wsource->name, control, wsink->name); | |
2559 | return -EINVAL; | |
2560 | } | |
2561 | ||
d714f97c LPC |
2562 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2563 | if (ret) | |
2564 | return ret; | |
2565 | ||
2b97eabc RP |
2566 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2567 | if (!path) | |
2568 | return -ENOMEM; | |
2569 | ||
2570 | path->source = wsource; | |
2571 | path->sink = wsink; | |
2553628e | 2572 | path->connected = connected; |
2b97eabc | 2573 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2574 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2575 | INIT_LIST_HEAD(&path->list_source); |
2576 | INIT_LIST_HEAD(&path->list_sink); | |
2577 | ||
c1862c8b LPC |
2578 | if (wsource->is_supply || wsink->is_supply) |
2579 | path->is_supply = 1; | |
2580 | ||
2b97eabc RP |
2581 | /* connect static paths */ |
2582 | if (control == NULL) { | |
2b97eabc | 2583 | path->connect = 1; |
5fe5b767 | 2584 | } else { |
d714f97c LPC |
2585 | switch (wsource->id) { |
2586 | case snd_soc_dapm_demux: | |
2587 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2588 | if (ret) | |
2589 | goto err; | |
2590 | break; | |
2591 | default: | |
2592 | break; | |
2593 | } | |
2594 | ||
5fe5b767 LPC |
2595 | switch (wsink->id) { |
2596 | case snd_soc_dapm_mux: | |
d714f97c | 2597 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2598 | if (ret != 0) |
2599 | goto err; | |
2600 | break; | |
2601 | case snd_soc_dapm_switch: | |
2602 | case snd_soc_dapm_mixer: | |
2603 | case snd_soc_dapm_mixer_named_ctl: | |
2604 | ret = dapm_connect_mixer(dapm, path, control); | |
2605 | if (ret != 0) | |
2606 | goto err; | |
2607 | break; | |
2608 | default: | |
d714f97c | 2609 | break; |
5fe5b767 | 2610 | } |
2b97eabc | 2611 | } |
fabd0384 | 2612 | |
5fe5b767 LPC |
2613 | list_add(&path->list, &dapm->card->paths); |
2614 | list_add(&path->list_sink, &wsink->sources); | |
2615 | list_add(&path->list_source, &wsource->sinks); | |
2616 | ||
6dd98b0a LPC |
2617 | dapm_update_widget_flags(wsource); |
2618 | dapm_update_widget_flags(wsink); | |
2619 | ||
5fe5b767 LPC |
2620 | dapm_mark_dirty(wsource, "Route added"); |
2621 | dapm_mark_dirty(wsink, "Route added"); | |
2622 | ||
92a99ea4 LPC |
2623 | if (dapm->card->instantiated && path->connect) |
2624 | dapm_path_invalidate(path); | |
2625 | ||
2b97eabc | 2626 | return 0; |
2553628e LPC |
2627 | err: |
2628 | kfree(path); | |
2629 | return ret; | |
2630 | } | |
2b97eabc | 2631 | |
2553628e | 2632 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2633 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2634 | { |
2635 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2636 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2637 | const char *sink; | |
2638 | const char *source; | |
2639 | char prefixed_sink[80]; | |
2640 | char prefixed_source[80]; | |
94f99c87 | 2641 | const char *prefix; |
2553628e LPC |
2642 | int ret; |
2643 | ||
94f99c87 LPC |
2644 | prefix = soc_dapm_prefix(dapm); |
2645 | if (prefix) { | |
2553628e | 2646 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2647 | prefix, route->sink); |
2553628e LPC |
2648 | sink = prefixed_sink; |
2649 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2650 | prefix, route->source); |
2553628e LPC |
2651 | source = prefixed_source; |
2652 | } else { | |
2653 | sink = route->sink; | |
2654 | source = route->source; | |
2655 | } | |
2656 | ||
45a110a1 CK |
2657 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2658 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2659 | ||
2660 | if (wsink && wsource) | |
2661 | goto skip_search; | |
2662 | ||
2553628e LPC |
2663 | /* |
2664 | * find src and dest widgets over all widgets but favor a widget from | |
2665 | * current DAPM context | |
2666 | */ | |
2667 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2668 | if (!wsink && !(strcmp(w->name, sink))) { | |
2669 | wtsink = w; | |
70c75109 | 2670 | if (w->dapm == dapm) { |
2553628e | 2671 | wsink = w; |
70c75109 CK |
2672 | if (wsource) |
2673 | break; | |
2674 | } | |
2553628e LPC |
2675 | continue; |
2676 | } | |
2677 | if (!wsource && !(strcmp(w->name, source))) { | |
2678 | wtsource = w; | |
70c75109 | 2679 | if (w->dapm == dapm) { |
2553628e | 2680 | wsource = w; |
70c75109 CK |
2681 | if (wsink) |
2682 | break; | |
2683 | } | |
2553628e LPC |
2684 | } |
2685 | } | |
2686 | /* use widget from another DAPM context if not found from this */ | |
2687 | if (!wsink) | |
2688 | wsink = wtsink; | |
2689 | if (!wsource) | |
2690 | wsource = wtsource; | |
2691 | ||
2692 | if (wsource == NULL) { | |
2693 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2694 | route->source); | |
2695 | return -ENODEV; | |
2696 | } | |
2697 | if (wsink == NULL) { | |
2698 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2699 | route->sink); | |
2700 | return -ENODEV; | |
2701 | } | |
2702 | ||
45a110a1 CK |
2703 | skip_search: |
2704 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2705 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2706 | ||
2553628e LPC |
2707 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2708 | route->connected); | |
2709 | if (ret) | |
2710 | goto err; | |
2711 | ||
2712 | return 0; | |
2b97eabc | 2713 | err: |
30a6a1a4 | 2714 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2715 | source, route->control, sink); |
2b97eabc RP |
2716 | return ret; |
2717 | } | |
105f1c28 | 2718 | |
efcc3c61 MB |
2719 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2720 | const struct snd_soc_dapm_route *route) | |
2721 | { | |
6dd98b0a | 2722 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2723 | struct snd_soc_dapm_path *path, *p; |
2724 | const char *sink; | |
2725 | const char *source; | |
2726 | char prefixed_sink[80]; | |
2727 | char prefixed_source[80]; | |
94f99c87 | 2728 | const char *prefix; |
efcc3c61 MB |
2729 | |
2730 | if (route->control) { | |
2731 | dev_err(dapm->dev, | |
30a6a1a4 | 2732 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2733 | return -EINVAL; |
2734 | } | |
2735 | ||
94f99c87 LPC |
2736 | prefix = soc_dapm_prefix(dapm); |
2737 | if (prefix) { | |
efcc3c61 | 2738 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2739 | prefix, route->sink); |
efcc3c61 MB |
2740 | sink = prefixed_sink; |
2741 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2742 | prefix, route->source); |
efcc3c61 MB |
2743 | source = prefixed_source; |
2744 | } else { | |
2745 | sink = route->sink; | |
2746 | source = route->source; | |
2747 | } | |
2748 | ||
2749 | path = NULL; | |
2750 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2751 | if (strcmp(p->source->name, source) != 0) | |
2752 | continue; | |
2753 | if (strcmp(p->sink->name, sink) != 0) | |
2754 | continue; | |
2755 | path = p; | |
2756 | break; | |
2757 | } | |
2758 | ||
2759 | if (path) { | |
6dd98b0a LPC |
2760 | wsource = path->source; |
2761 | wsink = path->sink; | |
2762 | ||
2763 | dapm_mark_dirty(wsource, "Route removed"); | |
2764 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2765 | if (path->connect) |
2766 | dapm_path_invalidate(path); | |
efcc3c61 | 2767 | |
8872293f | 2768 | dapm_free_path(path); |
6dd98b0a LPC |
2769 | |
2770 | /* Update any path related flags */ | |
2771 | dapm_update_widget_flags(wsource); | |
2772 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2773 | } else { |
30a6a1a4 | 2774 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2775 | source, sink); |
2776 | } | |
2777 | ||
2778 | return 0; | |
2779 | } | |
2780 | ||
105f1c28 MB |
2781 | /** |
2782 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2783 | * @dapm: DAPM context |
105f1c28 MB |
2784 | * @route: audio routes |
2785 | * @num: number of routes | |
2786 | * | |
2787 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2788 | * the widget receiving the audio signal, whilst the source is the sender | |
2789 | * of the audio signal. | |
2790 | * | |
2791 | * Returns 0 for success else error. On error all resources can be freed | |
2792 | * with a call to snd_soc_card_free(). | |
2793 | */ | |
ce6120cc | 2794 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2795 | const struct snd_soc_dapm_route *route, int num) |
2796 | { | |
62d4a4b9 | 2797 | int i, r, ret = 0; |
105f1c28 | 2798 | |
a73fb2df | 2799 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2800 | for (i = 0; i < num; i++) { |
a4e9154c | 2801 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2802 | if (r < 0) { |
30a6a1a4 LG |
2803 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2804 | route->source, | |
2805 | route->control ? route->control : "direct", | |
2806 | route->sink); | |
62d4a4b9 | 2807 | ret = r; |
105f1c28 MB |
2808 | } |
2809 | route++; | |
2810 | } | |
a73fb2df | 2811 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2812 | |
60884c27 | 2813 | return ret; |
105f1c28 MB |
2814 | } |
2815 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2816 | ||
efcc3c61 MB |
2817 | /** |
2818 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2819 | * @dapm: DAPM context | |
2820 | * @route: audio routes | |
2821 | * @num: number of routes | |
2822 | * | |
2823 | * Removes routes from the DAPM context. | |
2824 | */ | |
2825 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2826 | const struct snd_soc_dapm_route *route, int num) | |
2827 | { | |
2828 | int i, ret = 0; | |
2829 | ||
2830 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2831 | for (i = 0; i < num; i++) { | |
2832 | snd_soc_dapm_del_route(dapm, route); | |
2833 | route++; | |
2834 | } | |
2835 | mutex_unlock(&dapm->card->dapm_mutex); | |
2836 | ||
2837 | return ret; | |
2838 | } | |
2839 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2840 | ||
bf3a9e13 MB |
2841 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2842 | const struct snd_soc_dapm_route *route) | |
2843 | { | |
2844 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2845 | route->source, | |
2846 | true); | |
2847 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2848 | route->sink, | |
2849 | true); | |
2850 | struct snd_soc_dapm_path *path; | |
2851 | int count = 0; | |
2852 | ||
2853 | if (!source) { | |
30a6a1a4 | 2854 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2855 | route->source); |
2856 | return -ENODEV; | |
2857 | } | |
2858 | ||
2859 | if (!sink) { | |
30a6a1a4 | 2860 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2861 | route->sink); |
2862 | return -ENODEV; | |
2863 | } | |
2864 | ||
2865 | if (route->control || route->connected) | |
30a6a1a4 | 2866 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2867 | route->source, route->sink); |
2868 | ||
2869 | list_for_each_entry(path, &source->sinks, list_source) { | |
2870 | if (path->sink == sink) { | |
2871 | path->weak = 1; | |
2872 | count++; | |
2873 | } | |
2874 | } | |
2875 | ||
2876 | if (count == 0) | |
30a6a1a4 | 2877 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2878 | route->source, route->sink); |
2879 | if (count > 1) | |
30a6a1a4 | 2880 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2881 | count, route->source, route->sink); |
2882 | ||
2883 | return 0; | |
2884 | } | |
2885 | ||
2886 | /** | |
2887 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2888 | * @dapm: DAPM context | |
2889 | * @route: audio routes | |
2890 | * @num: number of routes | |
2891 | * | |
2892 | * Mark existing routes matching those specified in the passed array | |
2893 | * as being weak, meaning that they are ignored for the purpose of | |
2894 | * power decisions. The main intended use case is for sidetone paths | |
2895 | * which couple audio between other independent paths if they are both | |
2896 | * active in order to make the combination work better at the user | |
2897 | * level but which aren't intended to be "used". | |
2898 | * | |
2899 | * Note that CODEC drivers should not use this as sidetone type paths | |
2900 | * can frequently also be used as bypass paths. | |
2901 | */ | |
2902 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2903 | const struct snd_soc_dapm_route *route, int num) | |
2904 | { | |
2905 | int i, err; | |
2906 | int ret = 0; | |
2907 | ||
a73fb2df | 2908 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2909 | for (i = 0; i < num; i++) { |
2910 | err = snd_soc_dapm_weak_route(dapm, route); | |
2911 | if (err) | |
2912 | ret = err; | |
2913 | route++; | |
2914 | } | |
a73fb2df | 2915 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2916 | |
2917 | return ret; | |
2918 | } | |
2919 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2920 | ||
2b97eabc RP |
2921 | /** |
2922 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2923 | * @dapm: DAPM context |
2b97eabc RP |
2924 | * |
2925 | * Checks the codec for any new dapm widgets and creates them if found. | |
2926 | * | |
2927 | * Returns 0 for success. | |
2928 | */ | |
824ef826 | 2929 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2930 | { |
2931 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2932 | unsigned int val; |
2b97eabc | 2933 | |
95dd5cd6 | 2934 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2935 | |
95dd5cd6 | 2936 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2937 | { |
2938 | if (w->new) | |
2939 | continue; | |
2940 | ||
fad59888 SW |
2941 | if (w->num_kcontrols) { |
2942 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2943 | sizeof(struct snd_kcontrol *), | |
2944 | GFP_KERNEL); | |
a73fb2df | 2945 | if (!w->kcontrols) { |
95dd5cd6 | 2946 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2947 | return -ENOMEM; |
a73fb2df | 2948 | } |
fad59888 SW |
2949 | } |
2950 | ||
2b97eabc RP |
2951 | switch(w->id) { |
2952 | case snd_soc_dapm_switch: | |
2953 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2954 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2955 | dapm_new_mixer(w); |
2b97eabc RP |
2956 | break; |
2957 | case snd_soc_dapm_mux: | |
d714f97c | 2958 | case snd_soc_dapm_demux: |
4b80b8c2 | 2959 | dapm_new_mux(w); |
2b97eabc | 2960 | break; |
2b97eabc | 2961 | case snd_soc_dapm_pga: |
d88429a6 | 2962 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2963 | dapm_new_pga(w); |
2b97eabc | 2964 | break; |
c6615082 NO |
2965 | case snd_soc_dapm_dai_link: |
2966 | dapm_new_dai_link(w); | |
2967 | break; | |
7ca3a18b | 2968 | default: |
2b97eabc RP |
2969 | break; |
2970 | } | |
b66a70d5 MB |
2971 | |
2972 | /* Read the initial power state from the device */ | |
2973 | if (w->reg >= 0) { | |
ce0fc93a | 2974 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2975 | val = val >> w->shift; |
de9ba98b LPC |
2976 | val &= w->mask; |
2977 | if (val == w->on_val) | |
b66a70d5 MB |
2978 | w->power = 1; |
2979 | } | |
2980 | ||
2b97eabc | 2981 | w->new = 1; |
d5d1e0be | 2982 | |
7508b12a | 2983 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2984 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2985 | } |
2986 | ||
95dd5cd6 LPC |
2987 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2988 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2989 | return 0; |
2990 | } | |
2991 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2992 | ||
2993 | /** | |
2994 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2995 | * @kcontrol: mixer control | |
ac11a2b3 | 2996 | * @ucontrol: control element information |
2b97eabc RP |
2997 | * |
2998 | * Callback to get the value of a dapm mixer control. | |
2999 | * | |
3000 | * Returns 0 for success. | |
3001 | */ | |
3002 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3003 | struct snd_ctl_elem_value *ucontrol) | |
3004 | { | |
ce0fc93a LPC |
3005 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3006 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3007 | struct soc_mixer_control *mc = |
3008 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3009 | int reg = mc->reg; |
815ecf8d | 3010 | unsigned int shift = mc->shift; |
4eaa9819 | 3011 | int max = mc->max; |
815ecf8d | 3012 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3013 | unsigned int invert = mc->invert; |
57295073 | 3014 | unsigned int val; |
ce0fc93a | 3015 | int ret = 0; |
da602ab8 BT |
3016 | |
3017 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 3018 | dev_warn(dapm->dev, |
30a6a1a4 | 3019 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 3020 | kcontrol->id.name); |
2b97eabc | 3021 | |
57295073 | 3022 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
3023 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
3024 | ret = soc_dapm_read(dapm, reg, &val); | |
3025 | val = (val >> shift) & mask; | |
3026 | } else { | |
57295073 | 3027 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 3028 | } |
57295073 LPC |
3029 | mutex_unlock(&card->dapm_mutex); |
3030 | ||
da602ab8 | 3031 | if (invert) |
57295073 LPC |
3032 | ucontrol->value.integer.value[0] = max - val; |
3033 | else | |
3034 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3035 | |
ce0fc93a | 3036 | return ret; |
2b97eabc RP |
3037 | } |
3038 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3039 | ||
3040 | /** | |
3041 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3042 | * @kcontrol: mixer control | |
ac11a2b3 | 3043 | * @ucontrol: control element information |
2b97eabc RP |
3044 | * |
3045 | * Callback to set the value of a dapm mixer control. | |
3046 | * | |
3047 | * Returns 0 for success. | |
3048 | */ | |
3049 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3050 | struct snd_ctl_elem_value *ucontrol) | |
3051 | { | |
ce0fc93a LPC |
3052 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3053 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3054 | struct soc_mixer_control *mc = |
3055 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3056 | int reg = mc->reg; |
815ecf8d | 3057 | unsigned int shift = mc->shift; |
4eaa9819 | 3058 | int max = mc->max; |
815ecf8d JS |
3059 | unsigned int mask = (1 << fls(max)) - 1; |
3060 | unsigned int invert = mc->invert; | |
e9cf7049 | 3061 | unsigned int val; |
18626c7e | 3062 | int connect, change, reg_change = 0; |
97404f2e | 3063 | struct snd_soc_dapm_update update; |
52765976 | 3064 | int ret = 0; |
2b97eabc | 3065 | |
da602ab8 | 3066 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3067 | dev_warn(dapm->dev, |
30a6a1a4 | 3068 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3069 | kcontrol->id.name); |
3070 | ||
2b97eabc | 3071 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3072 | connect = !!val; |
2b97eabc RP |
3073 | |
3074 | if (invert) | |
a7a4ac86 | 3075 | val = max - val; |
2b97eabc | 3076 | |
3cd04343 | 3077 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3078 | |
249ce138 | 3079 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3080 | |
18626c7e JN |
3081 | if (reg != SND_SOC_NOPM) { |
3082 | mask = mask << shift; | |
3083 | val = val << shift; | |
3084 | ||
ce0fc93a | 3085 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3086 | } |
3087 | ||
3088 | if (change || reg_change) { | |
3089 | if (reg_change) { | |
3090 | update.kcontrol = kcontrol; | |
3091 | update.reg = reg; | |
3092 | update.mask = mask; | |
3093 | update.val = val; | |
3094 | card->update = &update; | |
249ce138 | 3095 | } |
18626c7e | 3096 | change |= reg_change; |
97404f2e | 3097 | |
52765976 | 3098 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3099 | |
564c6504 | 3100 | card->update = NULL; |
283375ce MB |
3101 | } |
3102 | ||
a73fb2df | 3103 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3104 | |
3105 | if (ret > 0) | |
3106 | soc_dpcm_runtime_update(card); | |
3107 | ||
56a67834 | 3108 | return change; |
2b97eabc RP |
3109 | } |
3110 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3111 | ||
3112 | /** | |
3113 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3114 | * @kcontrol: mixer control | |
ac11a2b3 | 3115 | * @ucontrol: control element information |
2b97eabc RP |
3116 | * |
3117 | * Callback to get the value of a dapm enumerated double mixer control. | |
3118 | * | |
3119 | * Returns 0 for success. | |
3120 | */ | |
3121 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3122 | struct snd_ctl_elem_value *ucontrol) | |
3123 | { | |
ce0fc93a | 3124 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3125 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3126 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3127 | unsigned int reg_val, val; |
52765976 | 3128 | |
561ed680 CK |
3129 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3130 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3131 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3132 | if (ret) { |
3133 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3134 | return ret; |
964a0b89 | 3135 | } |
69128316 | 3136 | } else { |
236aaa68 | 3137 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3138 | } |
561ed680 | 3139 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3140 | |
2e72f8e3 | 3141 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3142 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3143 | if (e->shift_l != e->shift_r) { |
3144 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3145 | val = snd_soc_enum_val_to_item(e, val); |
3146 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3147 | } |
3148 | ||
69128316 | 3149 | return 0; |
2e72f8e3 | 3150 | } |
2b97eabc | 3151 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3152 | |
3153 | /** | |
2b97eabc | 3154 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3155 | * @kcontrol: mixer control |
3156 | * @ucontrol: control element information | |
3157 | * | |
2b97eabc | 3158 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3159 | * |
3160 | * Returns 0 for success. | |
3161 | */ | |
2b97eabc | 3162 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3163 | struct snd_ctl_elem_value *ucontrol) |
3164 | { | |
ce0fc93a LPC |
3165 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3166 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3167 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3168 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3169 | unsigned int val, change, reg_change = 0; |
46f5822f | 3170 | unsigned int mask; |
97404f2e | 3171 | struct snd_soc_dapm_update update; |
52765976 | 3172 | int ret = 0; |
2e72f8e3 | 3173 | |
3727b496 | 3174 | if (item[0] >= e->items) |
2e72f8e3 | 3175 | return -EINVAL; |
3727b496 LPC |
3176 | |
3177 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3178 | mask = e->mask << e->shift_l; |
3179 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3180 | if (item[1] > e->items) |
2e72f8e3 | 3181 | return -EINVAL; |
3727b496 | 3182 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
3183 | mask |= e->mask << e->shift_r; |
3184 | } | |
3185 | ||
3cd04343 | 3186 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3187 | |
561ed680 CK |
3188 | change = dapm_kcontrol_set_value(kcontrol, val); |
3189 | ||
236aaa68 | 3190 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3191 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3192 | |
561ed680 CK |
3193 | if (change || reg_change) { |
3194 | if (reg_change) { | |
236aaa68 LPC |
3195 | update.kcontrol = kcontrol; |
3196 | update.reg = e->reg; | |
3197 | update.mask = mask; | |
3198 | update.val = val; | |
3199 | card->update = &update; | |
3200 | } | |
561ed680 | 3201 | change |= reg_change; |
1642e3d4 | 3202 | |
3727b496 | 3203 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3204 | |
564c6504 | 3205 | card->update = NULL; |
fafd2176 | 3206 | } |
2e72f8e3 | 3207 | |
a73fb2df | 3208 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3209 | |
3210 | if (ret > 0) | |
3211 | soc_dpcm_runtime_update(card); | |
3212 | ||
97404f2e | 3213 | return change; |
2e72f8e3 | 3214 | } |
2b97eabc | 3215 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3216 | |
8b37dbd2 MB |
3217 | /** |
3218 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3219 | * | |
3220 | * @kcontrol: mixer control | |
3221 | * @uinfo: control element information | |
3222 | * | |
3223 | * Callback to provide information about a pin switch control. | |
3224 | */ | |
3225 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3226 | struct snd_ctl_elem_info *uinfo) | |
3227 | { | |
3228 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3229 | uinfo->count = 1; | |
3230 | uinfo->value.integer.min = 0; | |
3231 | uinfo->value.integer.max = 1; | |
3232 | ||
3233 | return 0; | |
3234 | } | |
3235 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3236 | ||
3237 | /** | |
3238 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3239 | * | |
3240 | * @kcontrol: mixer control | |
3241 | * @ucontrol: Value | |
3242 | */ | |
3243 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3244 | struct snd_ctl_elem_value *ucontrol) | |
3245 | { | |
48a8c394 | 3246 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3247 | const char *pin = (const char *)kcontrol->private_value; |
3248 | ||
3cd04343 | 3249 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3250 | |
3251 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3252 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3253 | |
a73fb2df | 3254 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3255 | |
3256 | return 0; | |
3257 | } | |
3258 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3259 | ||
3260 | /** | |
3261 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3262 | * | |
3263 | * @kcontrol: mixer control | |
3264 | * @ucontrol: Value | |
3265 | */ | |
3266 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3267 | struct snd_ctl_elem_value *ucontrol) | |
3268 | { | |
48a8c394 | 3269 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3270 | const char *pin = (const char *)kcontrol->private_value; |
3271 | ||
8b37dbd2 | 3272 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3273 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3274 | else |
48a8c394 | 3275 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3276 | |
a73fb2df | 3277 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3278 | return 0; |
3279 | } | |
3280 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3281 | ||
cc76e7de | 3282 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3283 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3284 | const struct snd_soc_dapm_widget *widget) |
3285 | { | |
3286 | struct snd_soc_dapm_widget *w; | |
3287 | ||
3288 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3289 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3290 | if (!w) | |
3291 | dev_err(dapm->dev, | |
3292 | "ASoC: Failed to create DAPM control %s\n", | |
3293 | widget->name); | |
3294 | ||
3295 | mutex_unlock(&dapm->card->dapm_mutex); | |
3296 | return w; | |
3297 | } | |
3298 | ||
3299 | struct snd_soc_dapm_widget * | |
3300 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3301 | const struct snd_soc_dapm_widget *widget) |
2b97eabc RP |
3302 | { |
3303 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3304 | const char *prefix; |
62ea874a | 3305 | int ret; |
2b97eabc RP |
3306 | |
3307 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3308 | return NULL; |
2b97eabc | 3309 | |
62ea874a MB |
3310 | switch (w->id) { |
3311 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3312 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3313 | if (IS_ERR(w->regulator)) { | |
3314 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3315 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3316 | w->name, ret); |
5ba06fc9 | 3317 | return NULL; |
62ea874a | 3318 | } |
8784c77a | 3319 | |
de9ba98b | 3320 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3321 | ret = regulator_allow_bypass(w->regulator, true); |
3322 | if (ret != 0) | |
3323 | dev_warn(w->dapm->dev, | |
30686c35 | 3324 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3325 | w->name, ret); |
3326 | } | |
62ea874a | 3327 | break; |
d7e7eb91 | 3328 | case snd_soc_dapm_clock_supply: |
165961ef | 3329 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3330 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3331 | if (IS_ERR(w->clk)) { |
3332 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3333 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3334 | w->name, ret); |
3335 | return NULL; | |
3336 | } | |
ec02995a MB |
3337 | #else |
3338 | return NULL; | |
3339 | #endif | |
d7e7eb91 | 3340 | break; |
62ea874a MB |
3341 | default: |
3342 | break; | |
3343 | } | |
2b97eabc | 3344 | |
94f99c87 | 3345 | prefix = soc_dapm_prefix(dapm); |
fdb6eb0a | 3346 | if (prefix) { |
94f99c87 | 3347 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
fdb6eb0a KC |
3348 | if (widget->sname) |
3349 | w->sname = kasprintf(GFP_KERNEL, "%s %s", prefix, | |
3350 | widget->sname); | |
3351 | } else { | |
2b581074 | 3352 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); |
fdb6eb0a KC |
3353 | if (widget->sname) |
3354 | w->sname = kasprintf(GFP_KERNEL, "%s", widget->sname); | |
3355 | } | |
ead9b919 JN |
3356 | if (w->name == NULL) { |
3357 | kfree(w); | |
5ba06fc9 | 3358 | return NULL; |
ead9b919 | 3359 | } |
ead9b919 | 3360 | |
7ca3a18b | 3361 | switch (w->id) { |
6dd98b0a | 3362 | case snd_soc_dapm_mic: |
6dd98b0a | 3363 | w->is_source = 1; |
7ca3a18b MB |
3364 | w->power_check = dapm_generic_check_power; |
3365 | break; | |
86d75003 LPC |
3366 | case snd_soc_dapm_input: |
3367 | if (!dapm->card->fully_routed) | |
3368 | w->is_source = 1; | |
3369 | w->power_check = dapm_generic_check_power; | |
3370 | break; | |
6dd98b0a LPC |
3371 | case snd_soc_dapm_spk: |
3372 | case snd_soc_dapm_hp: | |
6dd98b0a | 3373 | w->is_sink = 1; |
7ca3a18b MB |
3374 | w->power_check = dapm_generic_check_power; |
3375 | break; | |
86d75003 LPC |
3376 | case snd_soc_dapm_output: |
3377 | if (!dapm->card->fully_routed) | |
3378 | w->is_sink = 1; | |
3379 | w->power_check = dapm_generic_check_power; | |
3380 | break; | |
6dd98b0a LPC |
3381 | case snd_soc_dapm_vmid: |
3382 | case snd_soc_dapm_siggen: | |
3383 | w->is_source = 1; | |
3384 | w->power_check = dapm_always_on_check_power; | |
3385 | break; | |
3386 | case snd_soc_dapm_mux: | |
d714f97c | 3387 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3388 | case snd_soc_dapm_switch: |
3389 | case snd_soc_dapm_mixer: | |
3390 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3391 | case snd_soc_dapm_adc: |
3392 | case snd_soc_dapm_aif_out: | |
3393 | case snd_soc_dapm_dac: | |
3394 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3395 | case snd_soc_dapm_pga: |
3396 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3397 | case snd_soc_dapm_micbias: |
7ca3a18b | 3398 | case snd_soc_dapm_line: |
c74184ed | 3399 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3400 | case snd_soc_dapm_dai_out: |
3401 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3402 | w->power_check = dapm_generic_check_power; |
3403 | break; | |
3404 | case snd_soc_dapm_supply: | |
62ea874a | 3405 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3406 | case snd_soc_dapm_clock_supply: |
57295073 | 3407 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3408 | w->is_supply = 1; |
7ca3a18b MB |
3409 | w->power_check = dapm_supply_check_power; |
3410 | break; | |
3411 | default: | |
3412 | w->power_check = dapm_always_on_check_power; | |
3413 | break; | |
3414 | } | |
3415 | ||
ce6120cc | 3416 | w->dapm = dapm; |
2b97eabc RP |
3417 | INIT_LIST_HEAD(&w->sources); |
3418 | INIT_LIST_HEAD(&w->sinks); | |
3419 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3420 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3421 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3422 | |
92a99ea4 LPC |
3423 | w->inputs = -1; |
3424 | w->outputs = -1; | |
3425 | ||
2b97eabc RP |
3426 | /* machine layer set ups unconnected pins and insertions */ |
3427 | w->connected = 1; | |
5ba06fc9 | 3428 | return w; |
2b97eabc | 3429 | } |
2b97eabc | 3430 | |
4ba1327a MB |
3431 | /** |
3432 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3433 | * @dapm: DAPM context |
4ba1327a MB |
3434 | * @widget: widget array |
3435 | * @num: number of widgets | |
3436 | * | |
3437 | * Creates new DAPM controls based upon the templates. | |
3438 | * | |
3439 | * Returns 0 for success else error. | |
3440 | */ | |
ce6120cc | 3441 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3442 | const struct snd_soc_dapm_widget *widget, |
3443 | int num) | |
3444 | { | |
5ba06fc9 MB |
3445 | struct snd_soc_dapm_widget *w; |
3446 | int i; | |
60884c27 | 3447 | int ret = 0; |
4ba1327a | 3448 | |
a73fb2df | 3449 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3450 | for (i = 0; i < num; i++) { |
02aa78ab | 3451 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
5ba06fc9 | 3452 | if (!w) { |
f7d41ae8 | 3453 | dev_err(dapm->dev, |
5ba06fc9 MB |
3454 | "ASoC: Failed to create DAPM control %s\n", |
3455 | widget->name); | |
60884c27 DC |
3456 | ret = -ENOMEM; |
3457 | break; | |
b8b33cb5 | 3458 | } |
4ba1327a MB |
3459 | widget++; |
3460 | } | |
a73fb2df | 3461 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3462 | return ret; |
4ba1327a MB |
3463 | } |
3464 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3465 | ||
c74184ed MB |
3466 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3467 | struct snd_kcontrol *kcontrol, int event) | |
3468 | { | |
3469 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3470 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3471 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3472 | struct snd_pcm_substream substream; |
9747cec2 | 3473 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3474 | u64 fmt; |
3475 | int ret; | |
3476 | ||
bf4edea8 TI |
3477 | if (WARN_ON(!config) || |
3478 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3479 | return -EINVAL; | |
c74184ed MB |
3480 | |
3481 | /* We only support a single source and sink, pick the first */ | |
3482 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3483 | list_sink); | |
3484 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3485 | list_source); | |
3486 | ||
bf4edea8 TI |
3487 | if (WARN_ON(!source_p || !sink_p) || |
3488 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3489 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3490 | return -EINVAL; | |
c74184ed MB |
3491 | |
3492 | source = source_p->source->priv; | |
3493 | sink = sink_p->sink->priv; | |
3494 | ||
3495 | /* Be a little careful as we don't want to overflow the mask array */ | |
3496 | if (config->formats) { | |
3497 | fmt = ffs(config->formats) - 1; | |
3498 | } else { | |
30a6a1a4 | 3499 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3500 | config->formats); |
3501 | fmt = 0; | |
3502 | } | |
3503 | ||
3504 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3505 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3506 | if (!params) { | |
3507 | ret = -ENOMEM; | |
3508 | goto out; | |
3509 | } | |
3510 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3511 | |
9747cec2 | 3512 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3513 | config->rate_min; |
9747cec2 | 3514 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3515 | config->rate_max; |
3516 | ||
9747cec2 | 3517 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3518 | = config->channels_min; |
9747cec2 | 3519 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3520 | = config->channels_max; |
3521 | ||
3522 | memset(&substream, 0, sizeof(substream)); | |
3523 | ||
3524 | switch (event) { | |
3525 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3526 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3527 | ret = soc_dai_hw_params(&substream, params, source); | |
3528 | if (ret < 0) | |
3529 | goto out; | |
c74184ed | 3530 | |
93e6958a BC |
3531 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3532 | ret = soc_dai_hw_params(&substream, params, sink); | |
3533 | if (ret < 0) | |
3534 | goto out; | |
c74184ed MB |
3535 | break; |
3536 | ||
3537 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3538 | ret = snd_soc_dai_digital_mute(sink, 0, |
3539 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3540 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3541 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3542 | ret = 0; |
c74184ed MB |
3543 | break; |
3544 | ||
3545 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3546 | ret = snd_soc_dai_digital_mute(sink, 1, |
3547 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3548 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3549 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3550 | ret = 0; |
c74184ed MB |
3551 | break; |
3552 | ||
3553 | default: | |
a6ed0608 | 3554 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3555 | return -EINVAL; |
3556 | } | |
3557 | ||
9747cec2 MB |
3558 | out: |
3559 | kfree(params); | |
3560 | return ret; | |
c74184ed MB |
3561 | } |
3562 | ||
c6615082 NO |
3563 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3564 | struct snd_ctl_elem_value *ucontrol) | |
3565 | { | |
3566 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3567 | ||
3568 | ucontrol->value.integer.value[0] = w->params_select; | |
3569 | ||
3570 | return 0; | |
3571 | } | |
3572 | ||
3573 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3574 | struct snd_ctl_elem_value *ucontrol) | |
3575 | { | |
3576 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3577 | ||
3578 | /* Can't change the config when widget is already powered */ | |
3579 | if (w->power) | |
3580 | return -EBUSY; | |
3581 | ||
3582 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3583 | return 0; | |
3584 | ||
3585 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3586 | return -EINVAL; | |
3587 | ||
3588 | w->params_select = ucontrol->value.integer.value[0]; | |
3589 | ||
3590 | return 0; | |
3591 | } | |
3592 | ||
c74184ed MB |
3593 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3594 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3595 | unsigned int num_params, |
c74184ed MB |
3596 | struct snd_soc_dapm_widget *source, |
3597 | struct snd_soc_dapm_widget *sink) | |
3598 | { | |
c74184ed MB |
3599 | struct snd_soc_dapm_widget template; |
3600 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3601 | char *link_name; |
c6615082 NO |
3602 | int ret, count; |
3603 | unsigned long private_value; | |
3604 | const char **w_param_text; | |
3605 | struct soc_enum w_param_enum[] = { | |
3606 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3607 | }; | |
3608 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3609 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3610 | snd_soc_dapm_dai_link_get, | |
3611 | snd_soc_dapm_dai_link_put), | |
3612 | }; | |
3613 | const struct snd_soc_pcm_stream *config = params; | |
3614 | ||
3615 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3616 | sizeof(char *), GFP_KERNEL); | |
3617 | if (!w_param_text) | |
c74184ed | 3618 | return -ENOMEM; |
c74184ed | 3619 | |
46172b6c CK |
3620 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3621 | source->name, sink->name); | |
c6615082 NO |
3622 | if (!link_name) { |
3623 | ret = -ENOMEM; | |
3624 | goto outfree_w_param; | |
3625 | } | |
c74184ed | 3626 | |
c6615082 NO |
3627 | for (count = 0 ; count < num_params; count++) { |
3628 | if (!config->stream_name) { | |
3629 | dev_warn(card->dapm.dev, | |
3630 | "ASoC: anonymous config %d for dai link %s\n", | |
3631 | count, link_name); | |
c6615082 | 3632 | w_param_text[count] = |
46172b6c CK |
3633 | devm_kasprintf(card->dev, GFP_KERNEL, |
3634 | "Anonymous Configuration %d", | |
3635 | count); | |
c6615082 NO |
3636 | if (!w_param_text[count]) { |
3637 | ret = -ENOMEM; | |
3638 | goto outfree_link_name; | |
3639 | } | |
c6615082 NO |
3640 | } else { |
3641 | w_param_text[count] = devm_kmemdup(card->dev, | |
3642 | config->stream_name, | |
3643 | strlen(config->stream_name) + 1, | |
3644 | GFP_KERNEL); | |
3645 | if (!w_param_text[count]) { | |
3646 | ret = -ENOMEM; | |
3647 | goto outfree_link_name; | |
3648 | } | |
3649 | } | |
3650 | config++; | |
3651 | } | |
3652 | w_param_enum[0].items = num_params; | |
3653 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3654 | |
3655 | memset(&template, 0, sizeof(template)); | |
3656 | template.reg = SND_SOC_NOPM; | |
3657 | template.id = snd_soc_dapm_dai_link; | |
3658 | template.name = link_name; | |
3659 | template.event = snd_soc_dai_link_event; | |
3660 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3661 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3662 | template.num_kcontrols = 1; |
3663 | /* duplicate w_param_enum on heap so that memory persists */ | |
3664 | private_value = | |
3665 | (unsigned long) devm_kmemdup(card->dev, | |
3666 | (void *)(kcontrol_dai_link[0].private_value), | |
3667 | sizeof(struct soc_enum), GFP_KERNEL); | |
3668 | if (!private_value) { | |
3669 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3670 | link_name); | |
3671 | ret = -ENOMEM; | |
3672 | goto outfree_link_name; | |
3673 | } | |
3674 | kcontrol_dai_link[0].private_value = private_value; | |
3675 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3676 | template.kcontrol_news = | |
3677 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3678 | sizeof(struct snd_kcontrol_new), | |
3679 | GFP_KERNEL); | |
3680 | if (!template.kcontrol_news) { | |
3681 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3682 | link_name); | |
3683 | ret = -ENOMEM; | |
3684 | goto outfree_private_value; | |
3685 | } | |
c74184ed | 3686 | |
30a6a1a4 | 3687 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3688 | |
02aa78ab | 3689 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
c74184ed | 3690 | if (!w) { |
30a6a1a4 | 3691 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3692 | link_name); |
c6615082 NO |
3693 | ret = -ENOMEM; |
3694 | goto outfree_kcontrol_news; | |
c74184ed MB |
3695 | } |
3696 | ||
3697 | w->params = params; | |
c6615082 | 3698 | w->num_params = num_params; |
c74184ed | 3699 | |
fe83897f LPC |
3700 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3701 | if (ret) | |
c6615082 | 3702 | goto outfree_w; |
fe83897f | 3703 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3704 | |
3705 | outfree_w: | |
3706 | devm_kfree(card->dev, w); | |
3707 | outfree_kcontrol_news: | |
3708 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3709 | outfree_private_value: | |
3710 | devm_kfree(card->dev, (void *)private_value); | |
3711 | outfree_link_name: | |
3712 | devm_kfree(card->dev, link_name); | |
3713 | outfree_w_param: | |
3714 | for (count = 0 ; count < num_params; count++) | |
3715 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3716 | devm_kfree(card->dev, w_param_text); | |
3717 | ||
3718 | return ret; | |
c74184ed MB |
3719 | } |
3720 | ||
888df395 MB |
3721 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3722 | struct snd_soc_dai *dai) | |
2b97eabc | 3723 | { |
888df395 | 3724 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3725 | struct snd_soc_dapm_widget *w; |
3726 | ||
888df395 MB |
3727 | WARN_ON(dapm->dev != dai->dev); |
3728 | ||
3729 | memset(&template, 0, sizeof(template)); | |
3730 | template.reg = SND_SOC_NOPM; | |
3731 | ||
3732 | if (dai->driver->playback.stream_name) { | |
4616274d | 3733 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3734 | template.name = dai->driver->playback.stream_name; |
3735 | template.sname = dai->driver->playback.stream_name; | |
3736 | ||
30a6a1a4 | 3737 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3738 | template.name); |
3739 | ||
02aa78ab | 3740 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3741 | if (!w) { |
30a6a1a4 | 3742 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3743 | dai->driver->playback.stream_name); |
298402a3 | 3744 | return -ENOMEM; |
888df395 MB |
3745 | } |
3746 | ||
3747 | w->priv = dai; | |
3748 | dai->playback_widget = w; | |
3749 | } | |
3750 | ||
3751 | if (dai->driver->capture.stream_name) { | |
4616274d | 3752 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3753 | template.name = dai->driver->capture.stream_name; |
3754 | template.sname = dai->driver->capture.stream_name; | |
3755 | ||
30a6a1a4 | 3756 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3757 | template.name); |
3758 | ||
02aa78ab | 3759 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3760 | if (!w) { |
30a6a1a4 | 3761 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3762 | dai->driver->capture.stream_name); |
298402a3 | 3763 | return -ENOMEM; |
888df395 MB |
3764 | } |
3765 | ||
3766 | w->priv = dai; | |
3767 | dai->capture_widget = w; | |
3768 | } | |
3769 | ||
3770 | return 0; | |
3771 | } | |
3772 | ||
3773 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3774 | { | |
3775 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3776 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3777 | struct snd_soc_dai *dai; |
888df395 MB |
3778 | |
3779 | /* For each DAI widget... */ | |
3780 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3781 | switch (dai_w->id) { |
3782 | case snd_soc_dapm_dai_in: | |
3783 | case snd_soc_dapm_dai_out: | |
3784 | break; | |
3785 | default: | |
2b97eabc | 3786 | continue; |
4616274d | 3787 | } |
888df395 MB |
3788 | |
3789 | dai = dai_w->priv; | |
3790 | ||
3791 | /* ...find all widgets with the same stream and link them */ | |
3792 | list_for_each_entry(w, &card->widgets, list) { | |
3793 | if (w->dapm != dai_w->dapm) | |
3794 | continue; | |
3795 | ||
4616274d MB |
3796 | switch (w->id) { |
3797 | case snd_soc_dapm_dai_in: | |
3798 | case snd_soc_dapm_dai_out: | |
888df395 | 3799 | continue; |
4616274d MB |
3800 | default: |
3801 | break; | |
3802 | } | |
888df395 | 3803 | |
19c2c5f5 | 3804 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3805 | continue; |
3806 | ||
0f9bd7b1 LPC |
3807 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3808 | src = dai_w; | |
3809 | sink = w; | |
3810 | } else { | |
3811 | src = w; | |
3812 | sink = dai_w; | |
2b97eabc | 3813 | } |
0f9bd7b1 LPC |
3814 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3815 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3816 | } |
3817 | } | |
2b97eabc | 3818 | |
888df395 MB |
3819 | return 0; |
3820 | } | |
64a648c2 | 3821 | |
44ba2641 BC |
3822 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3823 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3824 | { |
44ba2641 | 3825 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3826 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3827 | int i; |
3828 | ||
44ba2641 BC |
3829 | for (i = 0; i < rtd->num_codecs; i++) { |
3830 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3831 | |
3832 | /* there is no point in connecting BE DAI links with dummies */ | |
3833 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3834 | snd_soc_dai_is_dummy(cpu_dai)) | |
3835 | continue; | |
3836 | ||
3837 | /* connect BE DAI playback if widgets are valid */ | |
3838 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3839 | source = cpu_dai->playback_widget; |
3840 | sink = codec_dai->playback_widget; | |
b893ea5f | 3841 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3842 | cpu_dai->component->name, source->name, |
3843 | codec_dai->component->name, sink->name); | |
b893ea5f | 3844 | |
9887c20b LPC |
3845 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3846 | NULL, NULL); | |
b893ea5f LG |
3847 | } |
3848 | ||
3849 | /* connect BE DAI capture if widgets are valid */ | |
3850 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3851 | source = codec_dai->capture_widget; |
3852 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3853 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3854 | codec_dai->component->name, source->name, |
3855 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3856 | |
9887c20b LPC |
3857 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3858 | NULL, NULL); | |
b893ea5f | 3859 | } |
b893ea5f LG |
3860 | } |
3861 | } | |
3862 | ||
c471fdd1 | 3863 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3864 | int event) |
2b97eabc | 3865 | { |
c471fdd1 | 3866 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3867 | |
c471fdd1 LPC |
3868 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3869 | w = dai->playback_widget; | |
3870 | else | |
3871 | w = dai->capture_widget; | |
fe360685 | 3872 | |
c471fdd1 LPC |
3873 | if (w) { |
3874 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3875 | |
3876 | switch (event) { | |
3877 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3878 | w->active = 1; |
d9b0951b LG |
3879 | break; |
3880 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3881 | w->active = 0; |
d9b0951b LG |
3882 | break; |
3883 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3884 | case SND_SOC_DAPM_STREAM_RESUME: | |
3885 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3886 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3887 | break; | |
3888 | } | |
6dd98b0a | 3889 | |
92a99ea4 | 3890 | if (w->id == snd_soc_dapm_dai_in) { |
6dd98b0a | 3891 | w->is_source = w->active; |
92a99ea4 LPC |
3892 | dapm_widget_invalidate_input_paths(w); |
3893 | } else { | |
6dd98b0a | 3894 | w->is_sink = w->active; |
92a99ea4 LPC |
3895 | dapm_widget_invalidate_output_paths(w); |
3896 | } | |
d9b0951b | 3897 | } |
c471fdd1 | 3898 | } |
d9b0951b | 3899 | |
44ba2641 BC |
3900 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3901 | { | |
3902 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3903 | int i; | |
3904 | ||
3905 | /* for each BE DAI link... */ | |
3906 | for (i = 0; i < card->num_rtd; i++) { | |
3907 | rtd = &card->rtd[i]; | |
3908 | ||
3909 | /* | |
3910 | * dynamic FE links have no fixed DAI mapping. | |
3911 | * CODEC<->CODEC links have no direct connection. | |
3912 | */ | |
3913 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3914 | continue; | |
3915 | ||
3916 | dapm_connect_dai_link_widgets(card, rtd); | |
3917 | } | |
3918 | } | |
3919 | ||
c471fdd1 LPC |
3920 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3921 | int event) | |
3922 | { | |
44ba2641 BC |
3923 | int i; |
3924 | ||
c471fdd1 | 3925 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3926 | for (i = 0; i < rtd->num_codecs; i++) |
3927 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3928 | |
95dd5cd6 | 3929 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3930 | } |
3931 | ||
3932 | /** | |
3933 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3934 | * @rtd: PCM runtime data | |
3935 | * @stream: stream name | |
3936 | * @event: stream event | |
3937 | * | |
3938 | * Sends a stream event to the dapm core. The core then makes any | |
3939 | * necessary widget power changes. | |
3940 | * | |
3941 | * Returns 0 for success else error. | |
3942 | */ | |
d9b0951b LG |
3943 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3944 | int event) | |
ce6120cc | 3945 | { |
a73fb2df | 3946 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3947 | |
3cd04343 | 3948 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3949 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3950 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3951 | } |
2b97eabc | 3952 | |
11391100 CK |
3953 | /** |
3954 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3955 | * @dapm: DAPM context | |
3956 | * @pin: pin name | |
3957 | * | |
3958 | * Enables input/output pin and its parents or children widgets iff there is | |
3959 | * a valid audio route and active audio stream. | |
3960 | * | |
3961 | * Requires external locking. | |
3962 | * | |
3963 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3964 | * do any widget power switching. | |
3965 | */ | |
3966 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3967 | const char *pin) | |
3968 | { | |
3969 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3970 | } | |
3971 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3972 | ||
2b97eabc | 3973 | /** |
a5302181 | 3974 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3975 | * @dapm: DAPM context |
a5302181 | 3976 | * @pin: pin name |
2b97eabc | 3977 | * |
74b8f955 | 3978 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3979 | * a valid audio route and active audio stream. |
11391100 | 3980 | * |
a5302181 LG |
3981 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3982 | * do any widget power switching. | |
2b97eabc | 3983 | */ |
ce6120cc | 3984 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3985 | { |
11391100 CK |
3986 | int ret; |
3987 | ||
3988 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3989 | ||
3990 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3991 | ||
3992 | mutex_unlock(&dapm->card->dapm_mutex); | |
3993 | ||
3994 | return ret; | |
a5302181 LG |
3995 | } |
3996 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3997 | |
da34183e | 3998 | /** |
11391100 | 3999 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4000 | * @dapm: DAPM context |
da34183e MB |
4001 | * @pin: pin name |
4002 | * | |
4003 | * Enables input/output pin regardless of any other state. This is | |
4004 | * intended for use with microphone bias supplies used in microphone | |
4005 | * jack detection. | |
4006 | * | |
11391100 CK |
4007 | * Requires external locking. |
4008 | * | |
da34183e MB |
4009 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4010 | * do any widget power switching. | |
4011 | */ | |
11391100 CK |
4012 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4013 | const char *pin) | |
da34183e | 4014 | { |
91a5fca4 | 4015 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4016 | |
91a5fca4 | 4017 | if (!w) { |
30a6a1a4 | 4018 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4019 | return -EINVAL; |
0d86733c MB |
4020 | } |
4021 | ||
30a6a1a4 | 4022 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4023 | if (!w->connected) { |
4024 | /* | |
4025 | * w->force does not affect the number of input or output paths, | |
4026 | * so we only have to recheck if w->connected is changed | |
4027 | */ | |
4028 | dapm_widget_invalidate_input_paths(w); | |
4029 | dapm_widget_invalidate_output_paths(w); | |
4030 | w->connected = 1; | |
4031 | } | |
91a5fca4 | 4032 | w->force = 1; |
75c1f891 | 4033 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4034 | |
91a5fca4 | 4035 | return 0; |
da34183e | 4036 | } |
11391100 CK |
4037 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4038 | ||
4039 | /** | |
4040 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4041 | * @dapm: DAPM context | |
4042 | * @pin: pin name | |
4043 | * | |
4044 | * Enables input/output pin regardless of any other state. This is | |
4045 | * intended for use with microphone bias supplies used in microphone | |
4046 | * jack detection. | |
4047 | * | |
4048 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4049 | * do any widget power switching. | |
4050 | */ | |
4051 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4052 | const char *pin) | |
4053 | { | |
4054 | int ret; | |
4055 | ||
4056 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4057 | ||
4058 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4059 | ||
4060 | mutex_unlock(&dapm->card->dapm_mutex); | |
4061 | ||
4062 | return ret; | |
4063 | } | |
da34183e MB |
4064 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4065 | ||
11391100 CK |
4066 | /** |
4067 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4068 | * @dapm: DAPM context | |
4069 | * @pin: pin name | |
4070 | * | |
4071 | * Disables input/output pin and its parents or children widgets. | |
4072 | * | |
4073 | * Requires external locking. | |
4074 | * | |
4075 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4076 | * do any widget power switching. | |
4077 | */ | |
4078 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4079 | const char *pin) | |
4080 | { | |
4081 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4082 | } | |
4083 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4084 | ||
a5302181 LG |
4085 | /** |
4086 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4087 | * @dapm: DAPM context |
a5302181 LG |
4088 | * @pin: pin name |
4089 | * | |
74b8f955 | 4090 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4091 | * |
a5302181 LG |
4092 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4093 | * do any widget power switching. | |
4094 | */ | |
ce6120cc LG |
4095 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4096 | const char *pin) | |
a5302181 | 4097 | { |
11391100 CK |
4098 | int ret; |
4099 | ||
4100 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4101 | ||
4102 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4103 | ||
4104 | mutex_unlock(&dapm->card->dapm_mutex); | |
4105 | ||
4106 | return ret; | |
2b97eabc | 4107 | } |
a5302181 | 4108 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4109 | |
11391100 CK |
4110 | /** |
4111 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4112 | * @dapm: DAPM context | |
4113 | * @pin: pin name | |
4114 | * | |
4115 | * Marks the specified pin as being not connected, disabling it along | |
4116 | * any parent or child widgets. At present this is identical to | |
4117 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4118 | * additional things such as disabling controls which only affect | |
4119 | * paths through the pin. | |
4120 | * | |
4121 | * Requires external locking. | |
4122 | * | |
4123 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4124 | * do any widget power switching. | |
4125 | */ | |
4126 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4127 | const char *pin) | |
4128 | { | |
4129 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4130 | } | |
4131 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4132 | ||
5817b52a MB |
4133 | /** |
4134 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4135 | * @dapm: DAPM context |
5817b52a MB |
4136 | * @pin: pin name |
4137 | * | |
4138 | * Marks the specified pin as being not connected, disabling it along | |
4139 | * any parent or child widgets. At present this is identical to | |
4140 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4141 | * additional things such as disabling controls which only affect | |
4142 | * paths through the pin. | |
4143 | * | |
4144 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4145 | * do any widget power switching. | |
4146 | */ | |
ce6120cc | 4147 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4148 | { |
11391100 CK |
4149 | int ret; |
4150 | ||
4151 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4152 | ||
4153 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4154 | ||
4155 | mutex_unlock(&dapm->card->dapm_mutex); | |
4156 | ||
4157 | return ret; | |
5817b52a MB |
4158 | } |
4159 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4160 | ||
eeec12bf | 4161 | /** |
a5302181 | 4162 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4163 | * @dapm: DAPM context |
a5302181 | 4164 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4165 | * |
a5302181 | 4166 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4167 | * |
a5302181 | 4168 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4169 | */ |
ce6120cc LG |
4170 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4171 | const char *pin) | |
eeec12bf | 4172 | { |
91a5fca4 | 4173 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4174 | |
91a5fca4 LPC |
4175 | if (w) |
4176 | return w->connected; | |
a68b38ad | 4177 | |
eeec12bf GG |
4178 | return 0; |
4179 | } | |
a5302181 | 4180 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4181 | |
1547aba9 MB |
4182 | /** |
4183 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4184 | * @dapm: DAPM context |
1547aba9 MB |
4185 | * @pin: audio signal pin endpoint (or start point) |
4186 | * | |
4187 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4188 | * system is disabled a path between two endpoints flagged as ignoring | |
4189 | * suspend will not be disabled. The path must already be enabled via | |
4190 | * normal means at suspend time, it will not be turned on if it was not | |
4191 | * already enabled. | |
4192 | */ | |
ce6120cc LG |
4193 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4194 | const char *pin) | |
1547aba9 | 4195 | { |
91a5fca4 | 4196 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4197 | |
91a5fca4 | 4198 | if (!w) { |
30a6a1a4 | 4199 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4200 | return -EINVAL; |
1547aba9 MB |
4201 | } |
4202 | ||
91a5fca4 LPC |
4203 | w->ignore_suspend = 1; |
4204 | ||
4205 | return 0; | |
1547aba9 MB |
4206 | } |
4207 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4208 | ||
2b97eabc RP |
4209 | /** |
4210 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4211 | * @dapm: DAPM context |
2b97eabc RP |
4212 | * |
4213 | * Free all dapm widgets and resources. | |
4214 | */ | |
ce6120cc | 4215 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4216 | { |
6c45e126 | 4217 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4218 | dapm_free_widgets(dapm); |
7be31be8 | 4219 | list_del(&dapm->list); |
2b97eabc RP |
4220 | } |
4221 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4222 | ||
57996358 | 4223 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4224 | { |
01005a72 | 4225 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4226 | struct snd_soc_dapm_widget *w; |
4227 | LIST_HEAD(down_list); | |
4228 | int powerdown = 0; | |
4229 | ||
01005a72 LG |
4230 | mutex_lock(&card->dapm_mutex); |
4231 | ||
97c866de JN |
4232 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4233 | if (w->dapm != dapm) | |
4234 | continue; | |
51737470 | 4235 | if (w->power) { |
828a842f | 4236 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4237 | w->power = 0; |
51737470 MB |
4238 | powerdown = 1; |
4239 | } | |
4240 | } | |
4241 | ||
4242 | /* If there were no widgets to power down we're already in | |
4243 | * standby. | |
4244 | */ | |
4245 | if (powerdown) { | |
7679e42e MB |
4246 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4247 | snd_soc_dapm_set_bias_level(dapm, | |
4248 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4249 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4250 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4251 | snd_soc_dapm_set_bias_level(dapm, | |
4252 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4253 | } |
01005a72 LG |
4254 | |
4255 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4256 | } |
4257 | ||
4258 | /* | |
4259 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4260 | */ | |
4261 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4262 | { | |
57996358 | 4263 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4264 | |
57996358 | 4265 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4266 | if (dapm != &card->dapm) { |
4267 | soc_dapm_shutdown_dapm(dapm); | |
4268 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4269 | snd_soc_dapm_set_bias_level(dapm, | |
4270 | SND_SOC_BIAS_OFF); | |
4271 | } | |
ce6120cc | 4272 | } |
17282ba4 XX |
4273 | |
4274 | soc_dapm_shutdown_dapm(&card->dapm); | |
4275 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4276 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4277 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4278 | } |
4279 | ||
2b97eabc | 4280 | /* Module information */ |
d331124d | 4281 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4282 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4283 | MODULE_LICENSE("GPL"); |