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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
57295073 LPC |
50 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
51 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
52 | const char *control, | |
53 | int (*connected)(struct snd_soc_dapm_widget *source, | |
54 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 55 | |
cc76e7de | 56 | struct snd_soc_dapm_widget * |
57295073 LPC |
57 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
58 | const struct snd_soc_dapm_widget *widget); | |
59 | ||
02aa78ab LG |
60 | struct snd_soc_dapm_widget * |
61 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
62 | const struct snd_soc_dapm_widget *widget); |
63 | ||
2b97eabc RP |
64 | /* dapm power sequences - make this per codec in the future */ |
65 | static int dapm_up_seq[] = { | |
38357ab2 | 66 | [snd_soc_dapm_pre] = 0, |
62ea874a | 67 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 68 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
69 | [snd_soc_dapm_supply] = 2, |
70 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 71 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
72 | [snd_soc_dapm_dai_in] = 4, |
73 | [snd_soc_dapm_dai_out] = 4, | |
74 | [snd_soc_dapm_aif_in] = 4, | |
75 | [snd_soc_dapm_aif_out] = 4, | |
76 | [snd_soc_dapm_mic] = 5, | |
77 | [snd_soc_dapm_mux] = 6, | |
d714f97c | 78 | [snd_soc_dapm_demux] = 6, |
1dd275b6 MB |
79 | [snd_soc_dapm_dac] = 7, |
80 | [snd_soc_dapm_switch] = 8, | |
81 | [snd_soc_dapm_mixer] = 8, | |
82 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
83 | [snd_soc_dapm_pga] = 9, | |
84 | [snd_soc_dapm_adc] = 10, | |
85 | [snd_soc_dapm_out_drv] = 11, | |
86 | [snd_soc_dapm_hp] = 11, | |
87 | [snd_soc_dapm_spk] = 11, | |
88 | [snd_soc_dapm_line] = 11, | |
89 | [snd_soc_dapm_kcontrol] = 12, | |
90 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 91 | }; |
ca9c1aae | 92 | |
2b97eabc | 93 | static int dapm_down_seq[] = { |
38357ab2 | 94 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
95 | [snd_soc_dapm_kcontrol] = 1, |
96 | [snd_soc_dapm_adc] = 2, | |
97 | [snd_soc_dapm_hp] = 3, | |
98 | [snd_soc_dapm_spk] = 3, | |
99 | [snd_soc_dapm_line] = 3, | |
100 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 101 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 102 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 103 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
104 | [snd_soc_dapm_mixer] = 5, |
105 | [snd_soc_dapm_dac] = 6, | |
106 | [snd_soc_dapm_mic] = 7, | |
107 | [snd_soc_dapm_micbias] = 8, | |
108 | [snd_soc_dapm_mux] = 9, | |
d714f97c | 109 | [snd_soc_dapm_demux] = 9, |
010ff262 MB |
110 | [snd_soc_dapm_aif_in] = 10, |
111 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
112 | [snd_soc_dapm_dai_in] = 10, |
113 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 114 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 115 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
116 | [snd_soc_dapm_clock_supply] = 13, |
117 | [snd_soc_dapm_regulator_supply] = 13, | |
118 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
119 | }; |
120 | ||
f9fa2b18 MB |
121 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
122 | { | |
123 | if (dapm->card && dapm->card->instantiated) | |
124 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
125 | } | |
126 | ||
12ef193d | 127 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
128 | { |
129 | if (pop_time) | |
130 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
131 | } | |
132 | ||
fd8d3bc0 | 133 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
134 | { |
135 | va_list args; | |
fd8d3bc0 | 136 | char *buf; |
15e4c72f | 137 | |
fd8d3bc0 JN |
138 | if (!pop_time) |
139 | return; | |
15e4c72f | 140 | |
fd8d3bc0 JN |
141 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
142 | if (buf == NULL) | |
143 | return; | |
15e4c72f | 144 | |
fd8d3bc0 JN |
145 | va_start(args, fmt); |
146 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 147 | dev_info(dev, "%s", buf); |
15e4c72f | 148 | va_end(args); |
fd8d3bc0 JN |
149 | |
150 | kfree(buf); | |
15e4c72f MB |
151 | } |
152 | ||
db432b41 MB |
153 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
154 | { | |
155 | return !list_empty(&w->dirty); | |
156 | } | |
157 | ||
492c0a18 | 158 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 159 | { |
f9fa2b18 MB |
160 | dapm_assert_locked(w->dapm); |
161 | ||
75c1f891 MB |
162 | if (!dapm_dirty_widget(w)) { |
163 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
164 | w->name, reason); | |
db432b41 | 165 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 166 | } |
db432b41 MB |
167 | } |
168 | ||
92a99ea4 LPC |
169 | /* |
170 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of input | |
171 | * paths | |
172 | * @w: The widget for which to invalidate the cached number of input paths | |
173 | * | |
174 | * The function resets the cached number of inputs for the specified widget and | |
175 | * all widgets that can be reached via outgoing paths from the widget. | |
176 | * | |
177 | * This function must be called if the number of input paths for a widget might | |
178 | * have changed. E.g. if the source state of a widget changes or a path is added | |
179 | * or activated with the widget as the sink. | |
180 | */ | |
181 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
182 | { | |
183 | struct snd_soc_dapm_widget *sink; | |
184 | struct snd_soc_dapm_path *p; | |
185 | LIST_HEAD(list); | |
186 | ||
187 | dapm_assert_locked(w->dapm); | |
188 | ||
189 | if (w->inputs == -1) | |
190 | return; | |
191 | ||
192 | w->inputs = -1; | |
193 | list_add_tail(&w->work_list, &list); | |
194 | ||
195 | list_for_each_entry(w, &list, work_list) { | |
196 | list_for_each_entry(p, &w->sinks, list_source) { | |
197 | if (p->is_supply || p->weak || !p->connect) | |
198 | continue; | |
199 | sink = p->sink; | |
200 | if (sink->inputs != -1) { | |
201 | sink->inputs = -1; | |
202 | list_add_tail(&sink->work_list, &list); | |
203 | } | |
204 | } | |
205 | } | |
206 | } | |
207 | ||
208 | /* | |
209 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
210 | * output paths | |
211 | * @w: The widget for which to invalidate the cached number of output paths | |
212 | * | |
213 | * Resets the cached number of outputs for the specified widget and all widgets | |
214 | * that can be reached via incoming paths from the widget. | |
215 | * | |
216 | * This function must be called if the number of output paths for a widget might | |
217 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
218 | * or activated with the widget as the source. | |
219 | */ | |
220 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
221 | { | |
222 | struct snd_soc_dapm_widget *source; | |
223 | struct snd_soc_dapm_path *p; | |
224 | LIST_HEAD(list); | |
225 | ||
226 | dapm_assert_locked(w->dapm); | |
227 | ||
228 | if (w->outputs == -1) | |
229 | return; | |
230 | ||
231 | w->outputs = -1; | |
232 | list_add_tail(&w->work_list, &list); | |
233 | ||
234 | list_for_each_entry(w, &list, work_list) { | |
235 | list_for_each_entry(p, &w->sources, list_sink) { | |
236 | if (p->is_supply || p->weak || !p->connect) | |
237 | continue; | |
238 | source = p->source; | |
239 | if (source->outputs != -1) { | |
240 | source->outputs = -1; | |
241 | list_add_tail(&source->work_list, &list); | |
242 | } | |
243 | } | |
244 | } | |
245 | } | |
246 | ||
247 | /* | |
248 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
249 | * for the widgets connected to a path | |
250 | * @p: The path to invalidate | |
251 | * | |
252 | * Resets the cached number of inputs for the sink of the path and the cached | |
253 | * number of outputs for the source of the path. | |
254 | * | |
255 | * This function must be called when a path is added, removed or the connected | |
256 | * state changes. | |
257 | */ | |
258 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
259 | { | |
260 | /* | |
261 | * Weak paths or supply paths do not influence the number of input or | |
262 | * output paths of their neighbors. | |
263 | */ | |
264 | if (p->weak || p->is_supply) | |
265 | return; | |
266 | ||
267 | /* | |
268 | * The number of connected endpoints is the sum of the number of | |
269 | * connected endpoints of all neighbors. If a node with 0 connected | |
270 | * endpoints is either connected or disconnected that sum won't change, | |
271 | * so there is no need to re-check the path. | |
272 | */ | |
273 | if (p->source->inputs != 0) | |
274 | dapm_widget_invalidate_input_paths(p->sink); | |
275 | if (p->sink->outputs != 0) | |
276 | dapm_widget_invalidate_output_paths(p->source); | |
277 | } | |
278 | ||
8be4da29 | 279 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 280 | { |
e2d32ff6 MB |
281 | struct snd_soc_dapm_widget *w; |
282 | ||
283 | mutex_lock(&card->dapm_mutex); | |
284 | ||
285 | list_for_each_entry(w, &card->widgets, list) { | |
92a99ea4 | 286 | if (w->is_sink || w->is_source) { |
8be4da29 | 287 | dapm_mark_dirty(w, "Rechecking endpoints"); |
92a99ea4 LPC |
288 | if (w->is_sink) |
289 | dapm_widget_invalidate_output_paths(w); | |
290 | if (w->is_source) | |
291 | dapm_widget_invalidate_input_paths(w); | |
292 | } | |
e2d32ff6 MB |
293 | } |
294 | ||
295 | mutex_unlock(&card->dapm_mutex); | |
296 | } | |
8be4da29 | 297 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 298 | |
2b97eabc | 299 | /* create a new dapm widget */ |
88cb4290 | 300 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
301 | const struct snd_soc_dapm_widget *_widget) |
302 | { | |
88cb4290 | 303 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
304 | } |
305 | ||
e84357f7 | 306 | struct dapm_kcontrol_data { |
cf7c1de2 | 307 | unsigned int value; |
57295073 | 308 | struct snd_soc_dapm_widget *widget; |
5106b92f | 309 | struct list_head paths; |
2c75bdf3 | 310 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
311 | }; |
312 | ||
313 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
314 | struct snd_kcontrol *kcontrol) | |
315 | { | |
316 | struct dapm_kcontrol_data *data; | |
57295073 | 317 | struct soc_mixer_control *mc; |
561ed680 | 318 | struct soc_enum *e; |
773da9b3 CK |
319 | const char *name; |
320 | int ret; | |
e84357f7 | 321 | |
2c75bdf3 | 322 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 323 | if (!data) |
e84357f7 | 324 | return -ENOMEM; |
e84357f7 | 325 | |
5106b92f | 326 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 327 | |
57295073 LPC |
328 | switch (widget->id) { |
329 | case snd_soc_dapm_switch: | |
330 | case snd_soc_dapm_mixer: | |
331 | case snd_soc_dapm_mixer_named_ctl: | |
332 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
333 | ||
334 | if (mc->autodisable) { | |
335 | struct snd_soc_dapm_widget template; | |
336 | ||
773da9b3 CK |
337 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, |
338 | "Autodisable"); | |
339 | if (!name) { | |
340 | ret = -ENOMEM; | |
341 | goto err_data; | |
342 | } | |
343 | ||
57295073 LPC |
344 | memset(&template, 0, sizeof(template)); |
345 | template.reg = mc->reg; | |
346 | template.mask = (1 << fls(mc->max)) - 1; | |
347 | template.shift = mc->shift; | |
348 | if (mc->invert) | |
349 | template.off_val = mc->max; | |
350 | else | |
351 | template.off_val = 0; | |
352 | template.on_val = template.off_val; | |
353 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 354 | template.name = name; |
57295073 | 355 | |
2daabd78 LPC |
356 | data->value = template.on_val; |
357 | ||
02aa78ab LG |
358 | data->widget = |
359 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 360 | &template); |
e18077b6 | 361 | kfree(name); |
57295073 | 362 | if (!data->widget) { |
773da9b3 | 363 | ret = -ENOMEM; |
e18077b6 | 364 | goto err_data; |
57295073 LPC |
365 | } |
366 | } | |
367 | break; | |
d714f97c | 368 | case snd_soc_dapm_demux: |
561ed680 CK |
369 | case snd_soc_dapm_mux: |
370 | e = (struct soc_enum *)kcontrol->private_value; | |
371 | ||
372 | if (e->autodisable) { | |
373 | struct snd_soc_dapm_widget template; | |
374 | ||
375 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, | |
376 | "Autodisable"); | |
377 | if (!name) { | |
378 | ret = -ENOMEM; | |
379 | goto err_data; | |
380 | } | |
381 | ||
382 | memset(&template, 0, sizeof(template)); | |
383 | template.reg = e->reg; | |
384 | template.mask = e->mask << e->shift_l; | |
385 | template.shift = e->shift_l; | |
386 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
387 | template.on_val = template.off_val; | |
388 | template.id = snd_soc_dapm_kcontrol; | |
389 | template.name = name; | |
390 | ||
391 | data->value = template.on_val; | |
392 | ||
ffacb48e CK |
393 | data->widget = snd_soc_dapm_new_control_unlocked( |
394 | widget->dapm, &template); | |
e18077b6 | 395 | kfree(name); |
561ed680 CK |
396 | if (!data->widget) { |
397 | ret = -ENOMEM; | |
e18077b6 | 398 | goto err_data; |
561ed680 CK |
399 | } |
400 | ||
401 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
402 | widget, NULL, NULL); | |
403 | } | |
404 | break; | |
57295073 LPC |
405 | default: |
406 | break; | |
407 | } | |
408 | ||
e84357f7 LPC |
409 | kcontrol->private_data = data; |
410 | ||
411 | return 0; | |
773da9b3 | 412 | |
773da9b3 CK |
413 | err_data: |
414 | kfree(data); | |
415 | return ret; | |
e84357f7 LPC |
416 | } |
417 | ||
418 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
419 | { | |
420 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 421 | kfree(data->wlist); |
e84357f7 LPC |
422 | kfree(data); |
423 | } | |
424 | ||
425 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
426 | const struct snd_kcontrol *kcontrol) | |
427 | { | |
428 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
429 | ||
2c75bdf3 | 430 | return data->wlist; |
e84357f7 LPC |
431 | } |
432 | ||
433 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
434 | struct snd_soc_dapm_widget *widget) | |
435 | { | |
436 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
437 | struct snd_soc_dapm_widget_list *new_wlist; |
438 | unsigned int n; | |
e84357f7 | 439 | |
2c75bdf3 LPC |
440 | if (data->wlist) |
441 | n = data->wlist->num_widgets + 1; | |
442 | else | |
443 | n = 1; | |
444 | ||
445 | new_wlist = krealloc(data->wlist, | |
446 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
447 | if (!new_wlist) | |
e84357f7 LPC |
448 | return -ENOMEM; |
449 | ||
2c75bdf3 LPC |
450 | new_wlist->widgets[n - 1] = widget; |
451 | new_wlist->num_widgets = n; | |
e84357f7 | 452 | |
2c75bdf3 | 453 | data->wlist = new_wlist; |
e84357f7 LPC |
454 | |
455 | return 0; | |
456 | } | |
457 | ||
5106b92f LPC |
458 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
459 | struct snd_soc_dapm_path *path) | |
460 | { | |
461 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
462 | ||
463 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
464 | } |
465 | ||
466 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
467 | { | |
468 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
469 | ||
470 | if (!data->widget) | |
471 | return true; | |
472 | ||
473 | return data->widget->power; | |
5106b92f LPC |
474 | } |
475 | ||
476 | static struct list_head *dapm_kcontrol_get_path_list( | |
477 | const struct snd_kcontrol *kcontrol) | |
478 | { | |
479 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
480 | ||
481 | return &data->paths; | |
482 | } | |
483 | ||
484 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
485 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
486 | list_kcontrol) | |
487 | ||
5dc0158a | 488 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
489 | { |
490 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
491 | ||
492 | return data->value; | |
493 | } | |
5dc0158a | 494 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
495 | |
496 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
497 | unsigned int value) | |
498 | { | |
499 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
500 | ||
501 | if (data->value == value) | |
502 | return false; | |
503 | ||
57295073 LPC |
504 | if (data->widget) |
505 | data->widget->on_val = value; | |
506 | ||
cf7c1de2 LPC |
507 | data->value = value; |
508 | ||
509 | return true; | |
510 | } | |
511 | ||
ce0fc93a LPC |
512 | /** |
513 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
514 | * kcontrol | |
515 | * @kcontrol: The kcontrol | |
516 | * | |
517 | * Note: This function must only be used on kcontrols that are known to have | |
518 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
519 | */ | |
520 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
521 | struct snd_kcontrol *kcontrol) | |
522 | { | |
523 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
524 | } | |
525 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
526 | ||
6c120e19 LG |
527 | static void dapm_reset(struct snd_soc_card *card) |
528 | { | |
529 | struct snd_soc_dapm_widget *w; | |
530 | ||
f9fa2b18 MB |
531 | lockdep_assert_held(&card->dapm_mutex); |
532 | ||
6c120e19 LG |
533 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
534 | ||
535 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 536 | w->new_power = w->power; |
6c120e19 | 537 | w->power_checked = false; |
6c120e19 LG |
538 | } |
539 | } | |
540 | ||
94f99c87 LPC |
541 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
542 | { | |
543 | if (!dapm->component) | |
544 | return NULL; | |
545 | return dapm->component->name_prefix; | |
546 | } | |
547 | ||
ce0fc93a | 548 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 549 | unsigned int *value) |
0445bdf4 | 550 | { |
ce0fc93a | 551 | if (!dapm->component) |
e2c330b9 | 552 | return -EIO; |
ce0fc93a | 553 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
554 | } |
555 | ||
ce0fc93a | 556 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 557 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 558 | { |
ce0fc93a | 559 | if (!dapm->component) |
e2c330b9 | 560 | return -EIO; |
fcf6c5ea MB |
561 | return snd_soc_component_update_bits(dapm->component, reg, |
562 | mask, value); | |
49575fb5 LG |
563 | } |
564 | ||
ce0fc93a LPC |
565 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
566 | int reg, unsigned int mask, unsigned int value) | |
567 | { | |
568 | if (!dapm->component) | |
569 | return -EIO; | |
570 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
571 | } | |
572 | ||
eb270e98 MB |
573 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
574 | { | |
e2c330b9 LPC |
575 | if (dapm->component) |
576 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
577 | } |
578 | ||
45a110a1 CK |
579 | static struct snd_soc_dapm_widget * |
580 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
581 | { | |
582 | struct snd_soc_dapm_widget *w = wcache->widget; | |
583 | struct list_head *wlist; | |
584 | const int depth = 2; | |
585 | int i = 0; | |
586 | ||
587 | if (w) { | |
588 | wlist = &w->dapm->card->widgets; | |
589 | ||
590 | list_for_each_entry_from(w, wlist, list) { | |
591 | if (!strcmp(name, w->name)) | |
592 | return w; | |
593 | ||
594 | if (++i == depth) | |
595 | break; | |
596 | } | |
597 | } | |
598 | ||
599 | return NULL; | |
600 | } | |
601 | ||
602 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
603 | struct snd_soc_dapm_widget *w) | |
604 | { | |
605 | wcache->widget = w; | |
606 | } | |
607 | ||
fa880775 LPC |
608 | /** |
609 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
610 | * @dapm: The DAPM context for which to set the level | |
611 | * @level: The level to set | |
612 | * | |
613 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
614 | * callback of DAPM context with the specified level. This will even happen if | |
615 | * the context is already at the same level. Furthermore it will not go through | |
616 | * the normal bias level sequencing, meaning any intermediate states between the | |
617 | * current and the target state will not be entered. | |
618 | * | |
619 | * Note that the change in bias level is only temporary and the next time | |
620 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
621 | * determined by the DAPM core. The function is mainly intended to be used to | |
622 | * used during probe or resume from suspend to power up the device so | |
623 | * initialization can be done, before the DAPM core takes over. | |
624 | */ | |
625 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
626 | enum snd_soc_bias_level level) | |
627 | { | |
628 | int ret = 0; | |
629 | ||
630 | if (dapm->set_bias_level) | |
631 | ret = dapm->set_bias_level(dapm, level); | |
632 | ||
f4bf8d77 LPC |
633 | if (ret == 0) |
634 | dapm->bias_level = level; | |
635 | ||
fa880775 LPC |
636 | return ret; |
637 | } | |
638 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
639 | ||
452c5eaa MB |
640 | /** |
641 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 642 | * @dapm: DAPM context |
452c5eaa MB |
643 | * @level: level to configure |
644 | * | |
645 | * Configure the bias (power) levels for the SoC audio device. | |
646 | * | |
647 | * Returns 0 for success else error. | |
648 | */ | |
ed5a4c47 | 649 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 650 | enum snd_soc_bias_level level) |
452c5eaa | 651 | { |
ed5a4c47 | 652 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
653 | int ret = 0; |
654 | ||
84e90930 MB |
655 | trace_snd_soc_bias_level_start(card, level); |
656 | ||
f0fba2ad | 657 | if (card && card->set_bias_level) |
d4c6005f | 658 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
659 | if (ret != 0) |
660 | goto out; | |
661 | ||
fa880775 LPC |
662 | if (!card || dapm != &card->dapm) |
663 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 664 | |
171ec6b0 MB |
665 | if (ret != 0) |
666 | goto out; | |
667 | ||
668 | if (card && card->set_bias_level_post) | |
d4c6005f | 669 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 670 | out: |
84e90930 MB |
671 | trace_snd_soc_bias_level_done(card, level); |
672 | ||
452c5eaa MB |
673 | return ret; |
674 | } | |
675 | ||
74b8f955 | 676 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 677 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
678 | struct snd_soc_dapm_path *path, const char *control_name, |
679 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 680 | { |
d714f97c | 681 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 682 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 683 | unsigned int val, item; |
2b97eabc | 684 | int i; |
24ff33ac | 685 | |
234c0b8f | 686 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 687 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
688 | val = (val >> e->shift_l) & e->mask; |
689 | item = snd_soc_enum_val_to_item(e, val); | |
690 | } else { | |
24ff33ac DP |
691 | /* since a virtual mux has no backing registers to |
692 | * decide which path to connect, it will try to match | |
693 | * with the first enumeration. This is to ensure | |
694 | * that the default mux choice (the first) will be | |
695 | * correctly powered up during initialization. | |
696 | */ | |
234c0b8f | 697 | item = 0; |
24ff33ac | 698 | } |
2e72f8e3 | 699 | |
9a8d38db | 700 | for (i = 0; i < e->items; i++) { |
2b97eabc | 701 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 702 | path->name = e->texts[i]; |
234c0b8f LPC |
703 | if (i == item) |
704 | path->connect = 1; | |
705 | else | |
706 | path->connect = 0; | |
2b97eabc RP |
707 | return 0; |
708 | } | |
709 | } | |
710 | ||
711 | return -ENODEV; | |
712 | } | |
713 | ||
234c0b8f | 714 | /* set up initial codec paths */ |
5fe5b767 | 715 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
716 | { |
717 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 718 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
719 | unsigned int reg = mc->reg; |
720 | unsigned int shift = mc->shift; | |
721 | unsigned int max = mc->max; | |
722 | unsigned int mask = (1 << fls(max)) - 1; | |
723 | unsigned int invert = mc->invert; | |
724 | unsigned int val; | |
725 | ||
726 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 727 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
728 | val = (val >> shift) & mask; |
729 | if (invert) | |
730 | val = max - val; | |
731 | p->connect = !!val; | |
732 | } else { | |
733 | p->connect = 0; | |
734 | } | |
735 | } | |
736 | ||
74b8f955 | 737 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 738 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
739 | struct snd_soc_dapm_path *path, const char *control_name) |
740 | { | |
741 | int i; | |
742 | ||
743 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
744 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
745 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
746 | path->name = path->sink->kcontrol_news[i].name; | |
747 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
748 | return 0; |
749 | } | |
750 | } | |
751 | return -ENODEV; | |
752 | } | |
753 | ||
af46800b | 754 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 755 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
756 | const struct snd_kcontrol_new *kcontrol_new, |
757 | struct snd_kcontrol **kcontrol) | |
758 | { | |
759 | struct snd_soc_dapm_widget *w; | |
760 | int i; | |
761 | ||
762 | *kcontrol = NULL; | |
763 | ||
764 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
765 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
766 | continue; | |
af46800b SW |
767 | for (i = 0; i < w->num_kcontrols; i++) { |
768 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
769 | if (w->kcontrols) | |
770 | *kcontrol = w->kcontrols[i]; | |
771 | return 1; | |
772 | } | |
773 | } | |
774 | } | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
85762e71 SW |
779 | /* |
780 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
781 | * create it. Either way, add the widget into the control's widget list | |
782 | */ | |
783 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 784 | int kci) |
2b97eabc | 785 | { |
4b80b8c2 | 786 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 787 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 788 | const char *prefix; |
85762e71 SW |
789 | size_t prefix_len; |
790 | int shared; | |
791 | struct snd_kcontrol *kcontrol; | |
85762e71 | 792 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 793 | char *long_name = NULL; |
85762e71 | 794 | const char *name; |
e5092c96 | 795 | int ret = 0; |
efb7ac3f | 796 | |
94f99c87 | 797 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
798 | if (prefix) |
799 | prefix_len = strlen(prefix) + 1; | |
800 | else | |
801 | prefix_len = 0; | |
802 | ||
85762e71 SW |
803 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
804 | &kcontrol); | |
2b97eabc | 805 | |
85762e71 SW |
806 | if (!kcontrol) { |
807 | if (shared) { | |
808 | wname_in_long_name = false; | |
809 | kcname_in_long_name = true; | |
810 | } else { | |
811 | switch (w->id) { | |
812 | case snd_soc_dapm_switch: | |
813 | case snd_soc_dapm_mixer: | |
814 | wname_in_long_name = true; | |
815 | kcname_in_long_name = true; | |
816 | break; | |
817 | case snd_soc_dapm_mixer_named_ctl: | |
818 | wname_in_long_name = false; | |
819 | kcname_in_long_name = true; | |
820 | break; | |
d714f97c | 821 | case snd_soc_dapm_demux: |
85762e71 | 822 | case snd_soc_dapm_mux: |
85762e71 SW |
823 | wname_in_long_name = true; |
824 | kcname_in_long_name = false; | |
825 | break; | |
826 | default: | |
85762e71 | 827 | return -EINVAL; |
82cd8764 | 828 | } |
85762e71 SW |
829 | } |
830 | ||
831 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
832 | /* |
833 | * The control will get a prefix from the control | |
834 | * creation process but we're also using the same | |
835 | * prefix for widgets so cut the prefix off the | |
836 | * front of the widget name. | |
ca9c1aae | 837 | */ |
2b581074 | 838 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
839 | w->name + prefix_len, |
840 | w->kcontrol_news[kci].name); | |
e84357f7 | 841 | if (long_name == NULL) |
2b581074 | 842 | return -ENOMEM; |
85762e71 SW |
843 | |
844 | name = long_name; | |
845 | } else if (wname_in_long_name) { | |
846 | long_name = NULL; | |
847 | name = w->name + prefix_len; | |
848 | } else { | |
849 | long_name = NULL; | |
850 | name = w->kcontrol_news[kci].name; | |
851 | } | |
ca9c1aae | 852 | |
e84357f7 | 853 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 854 | prefix); |
e5092c96 DM |
855 | if (!kcontrol) { |
856 | ret = -ENOMEM; | |
857 | goto exit_free; | |
858 | } | |
859 | ||
9356e9d5 | 860 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
861 | |
862 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
863 | if (ret) { | |
864 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 865 | goto exit_free; |
e84357f7 LPC |
866 | } |
867 | ||
85762e71 SW |
868 | ret = snd_ctl_add(card, kcontrol); |
869 | if (ret < 0) { | |
870 | dev_err(dapm->dev, | |
871 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
872 | w->name, name, ret); | |
e5092c96 | 873 | goto exit_free; |
85762e71 | 874 | } |
85762e71 | 875 | } |
2b97eabc | 876 | |
2c75bdf3 | 877 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
878 | if (ret == 0) |
879 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 880 | |
e5092c96 DM |
881 | exit_free: |
882 | kfree(long_name); | |
ca9c1aae | 883 | |
e5092c96 | 884 | return ret; |
85762e71 | 885 | } |
219b93f5 | 886 | |
85762e71 SW |
887 | /* create new dapm mixer control */ |
888 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
889 | { | |
890 | int i, ret; | |
891 | struct snd_soc_dapm_path *path; | |
561ed680 | 892 | struct dapm_kcontrol_data *data; |
85762e71 SW |
893 | |
894 | /* add kcontrol */ | |
895 | for (i = 0; i < w->num_kcontrols; i++) { | |
896 | /* match name */ | |
897 | list_for_each_entry(path, &w->sources, list_sink) { | |
898 | /* mixer/mux paths name must match control name */ | |
899 | if (path->name != (char *)w->kcontrol_news[i].name) | |
900 | continue; | |
901 | ||
561ed680 CK |
902 | if (!w->kcontrols[i]) { |
903 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); | |
904 | if (ret < 0) | |
905 | return ret; | |
2b97eabc | 906 | } |
85762e71 | 907 | |
946d92a1 | 908 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
909 | |
910 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
911 | if (data->widget) | |
912 | snd_soc_dapm_add_path(data->widget->dapm, | |
913 | data->widget, | |
914 | path->source, | |
915 | NULL, NULL); | |
2b97eabc RP |
916 | } |
917 | } | |
85762e71 SW |
918 | |
919 | return 0; | |
2b97eabc RP |
920 | } |
921 | ||
922 | /* create new dapm mux control */ | |
4b80b8c2 | 923 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 924 | { |
4b80b8c2 | 925 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 926 | struct snd_soc_dapm_path *path; |
d714f97c LPC |
927 | struct list_head *paths; |
928 | const char *type; | |
af46800b | 929 | int ret; |
2b97eabc | 930 | |
d714f97c LPC |
931 | switch (w->id) { |
932 | case snd_soc_dapm_mux: | |
933 | paths = &w->sources; | |
934 | type = "mux"; | |
935 | break; | |
936 | case snd_soc_dapm_demux: | |
937 | paths = &w->sinks; | |
938 | type = "demux"; | |
939 | break; | |
940 | default: | |
941 | return -EINVAL; | |
942 | } | |
943 | ||
af46800b SW |
944 | if (w->num_kcontrols != 1) { |
945 | dev_err(dapm->dev, | |
d714f97c | 946 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 947 | w->name); |
2b97eabc RP |
948 | return -EINVAL; |
949 | } | |
950 | ||
d714f97c LPC |
951 | if (list_empty(paths)) { |
952 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); | |
85762e71 | 953 | return -EINVAL; |
af46800b | 954 | } |
ce6120cc | 955 | |
946d92a1 | 956 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
957 | if (ret < 0) |
958 | return ret; | |
fad59888 | 959 | |
d714f97c LPC |
960 | if (w->id == snd_soc_dapm_mux) { |
961 | list_for_each_entry(path, &w->sources, list_sink) { | |
962 | if (path->name) | |
963 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
964 | } | |
965 | } else { | |
966 | list_for_each_entry(path, &w->sinks, list_source) { | |
967 | if (path->name) | |
968 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
969 | } | |
98407efc | 970 | } |
2b97eabc | 971 | |
af46800b | 972 | return 0; |
2b97eabc RP |
973 | } |
974 | ||
975 | /* create new dapm volume control */ | |
4b80b8c2 | 976 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 977 | { |
a6c65736 | 978 | if (w->num_kcontrols) |
f7d41ae8 | 979 | dev_err(w->dapm->dev, |
30a6a1a4 | 980 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 981 | |
a6c65736 | 982 | return 0; |
2b97eabc RP |
983 | } |
984 | ||
c6615082 NO |
985 | /* create new dapm dai link control */ |
986 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
987 | { | |
988 | int i, ret; | |
989 | struct snd_kcontrol *kcontrol; | |
990 | struct snd_soc_dapm_context *dapm = w->dapm; | |
991 | struct snd_card *card = dapm->card->snd_card; | |
992 | ||
993 | /* create control for links with > 1 config */ | |
994 | if (w->num_params <= 1) | |
995 | return 0; | |
996 | ||
997 | /* add kcontrol */ | |
998 | for (i = 0; i < w->num_kcontrols; i++) { | |
999 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1000 | w->name, NULL); | |
1001 | ret = snd_ctl_add(card, kcontrol); | |
1002 | if (ret < 0) { | |
1003 | dev_err(dapm->dev, | |
1004 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1005 | w->name, w->kcontrol_news[i].name, ret); | |
1006 | return ret; | |
1007 | } | |
1008 | kcontrol->private_data = w; | |
1009 | w->kcontrols[i] = kcontrol; | |
1010 | } | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
9949788b MB |
1015 | /* We implement power down on suspend by checking the power state of |
1016 | * the ALSA card - when we are suspending the ALSA state for the card | |
1017 | * is set to D3. | |
1018 | */ | |
1019 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1020 | { | |
12ea2c78 | 1021 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1022 | |
f0fba2ad | 1023 | switch (level) { |
9949788b MB |
1024 | case SNDRV_CTL_POWER_D3hot: |
1025 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1026 | if (widget->ignore_suspend) |
30a6a1a4 | 1027 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1028 | widget->name); |
1547aba9 | 1029 | return widget->ignore_suspend; |
9949788b MB |
1030 | default: |
1031 | return 1; | |
1032 | } | |
1033 | } | |
1034 | ||
ec2e3031 LG |
1035 | /* add widget to list if it's not already in the list */ |
1036 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
1037 | struct snd_soc_dapm_widget *w) | |
1038 | { | |
1039 | struct snd_soc_dapm_widget_list *wlist; | |
1040 | int wlistsize, wlistentries, i; | |
1041 | ||
1042 | if (*list == NULL) | |
1043 | return -EINVAL; | |
1044 | ||
1045 | wlist = *list; | |
1046 | ||
1047 | /* is this widget already in the list */ | |
1048 | for (i = 0; i < wlist->num_widgets; i++) { | |
1049 | if (wlist->widgets[i] == w) | |
1050 | return 0; | |
1051 | } | |
1052 | ||
1053 | /* allocate some new space */ | |
1054 | wlistentries = wlist->num_widgets + 1; | |
1055 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
1056 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
1057 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
1058 | if (*list == NULL) { | |
30a6a1a4 | 1059 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
1060 | w->name); |
1061 | return -ENOMEM; | |
1062 | } | |
1063 | wlist = *list; | |
1064 | ||
1065 | /* insert the widget */ | |
30a6a1a4 | 1066 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
1067 | w->name, wlist->num_widgets); |
1068 | ||
1069 | wlist->widgets[wlist->num_widgets] = w; | |
1070 | wlist->num_widgets++; | |
1071 | return 1; | |
1072 | } | |
1073 | ||
2b97eabc RP |
1074 | /* |
1075 | * Recursively check for a completed path to an active or physically connected | |
1076 | * output widget. Returns number of complete paths. | |
1077 | */ | |
ec2e3031 LG |
1078 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
1079 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1080 | { |
1081 | struct snd_soc_dapm_path *path; | |
1082 | int con = 0; | |
1083 | ||
024dc078 MB |
1084 | if (widget->outputs >= 0) |
1085 | return widget->outputs; | |
1086 | ||
de02d078 MB |
1087 | DAPM_UPDATE_STAT(widget, path_checks); |
1088 | ||
6dd98b0a LPC |
1089 | if (widget->is_sink && widget->connected) { |
1090 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
1091 | return widget->outputs; | |
2b97eabc RP |
1092 | } |
1093 | ||
1094 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
1095 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1096 | ||
c1862c8b | 1097 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1098 | continue; |
1099 | ||
8af294b4 MB |
1100 | if (path->walking) |
1101 | return 1; | |
1102 | ||
ec2e3031 LG |
1103 | trace_snd_soc_dapm_output_path(widget, path); |
1104 | ||
7ddd4cd5 | 1105 | if (path->connect) { |
8af294b4 | 1106 | path->walking = 1; |
ec2e3031 LG |
1107 | |
1108 | /* do we need to add this widget to the list ? */ | |
1109 | if (list) { | |
1110 | int err; | |
1111 | err = dapm_list_add_widget(list, path->sink); | |
1112 | if (err < 0) { | |
30a6a1a4 LG |
1113 | dev_err(widget->dapm->dev, |
1114 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1115 | widget->name); |
8af294b4 | 1116 | path->walking = 0; |
ec2e3031 LG |
1117 | return con; |
1118 | } | |
1119 | } | |
1120 | ||
1121 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1122 | |
1123 | path->walking = 0; | |
2b97eabc RP |
1124 | } |
1125 | } | |
1126 | ||
024dc078 MB |
1127 | widget->outputs = con; |
1128 | ||
2b97eabc RP |
1129 | return con; |
1130 | } | |
1131 | ||
1132 | /* | |
1133 | * Recursively check for a completed path to an active or physically connected | |
1134 | * input widget. Returns number of complete paths. | |
1135 | */ | |
ec2e3031 LG |
1136 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1137 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1138 | { |
1139 | struct snd_soc_dapm_path *path; | |
1140 | int con = 0; | |
1141 | ||
024dc078 MB |
1142 | if (widget->inputs >= 0) |
1143 | return widget->inputs; | |
1144 | ||
de02d078 MB |
1145 | DAPM_UPDATE_STAT(widget, path_checks); |
1146 | ||
6dd98b0a LPC |
1147 | if (widget->is_source && widget->connected) { |
1148 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1149 | return widget->inputs; | |
2b97eabc RP |
1150 | } |
1151 | ||
1152 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1153 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1154 | ||
c1862c8b | 1155 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1156 | continue; |
1157 | ||
8af294b4 MB |
1158 | if (path->walking) |
1159 | return 1; | |
1160 | ||
ec2e3031 LG |
1161 | trace_snd_soc_dapm_input_path(widget, path); |
1162 | ||
7ddd4cd5 | 1163 | if (path->connect) { |
8af294b4 | 1164 | path->walking = 1; |
ec2e3031 LG |
1165 | |
1166 | /* do we need to add this widget to the list ? */ | |
1167 | if (list) { | |
1168 | int err; | |
90c6ce0d | 1169 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1170 | if (err < 0) { |
30a6a1a4 LG |
1171 | dev_err(widget->dapm->dev, |
1172 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1173 | widget->name); |
8af294b4 | 1174 | path->walking = 0; |
ec2e3031 LG |
1175 | return con; |
1176 | } | |
1177 | } | |
1178 | ||
1179 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1180 | |
1181 | path->walking = 0; | |
2b97eabc RP |
1182 | } |
1183 | } | |
1184 | ||
024dc078 MB |
1185 | widget->inputs = con; |
1186 | ||
2b97eabc RP |
1187 | return con; |
1188 | } | |
1189 | ||
ec2e3031 LG |
1190 | /** |
1191 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1192 | * @dai: the soc DAI. | |
1193 | * @stream: stream direction. | |
1194 | * @list: list of active widgets for this stream. | |
1195 | * | |
1196 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1197 | * the initial stream specified by name. This takes into account | |
1198 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1199 | * | |
1200 | * Returns the number of valid paths or negative error. | |
1201 | */ | |
1202 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1203 | struct snd_soc_dapm_widget_list **list) | |
1204 | { | |
313665b9 | 1205 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1206 | struct snd_soc_dapm_widget *w; |
ec2e3031 LG |
1207 | int paths; |
1208 | ||
1209 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1210 | |
1211 | /* | |
1212 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1213 | * to reset the cached number of inputs and outputs. | |
1214 | */ | |
1215 | list_for_each_entry(w, &card->widgets, list) { | |
1216 | w->inputs = -1; | |
1217 | w->outputs = -1; | |
1218 | } | |
ec2e3031 | 1219 | |
130897ac | 1220 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
ec2e3031 | 1221 | paths = is_connected_output_ep(dai->playback_widget, list); |
130897ac | 1222 | else |
d298caae | 1223 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
1224 | |
1225 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1226 | mutex_unlock(&card->dapm_mutex); |
1227 | ||
1228 | return paths; | |
1229 | } | |
1230 | ||
62ea874a MB |
1231 | /* |
1232 | * Handler for regulator supply widget. | |
1233 | */ | |
1234 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1235 | struct snd_kcontrol *kcontrol, int event) | |
1236 | { | |
c05b84d1 MB |
1237 | int ret; |
1238 | ||
eb270e98 MB |
1239 | soc_dapm_async_complete(w->dapm); |
1240 | ||
c05b84d1 | 1241 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1242 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1243 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1244 | if (ret != 0) |
1245 | dev_warn(w->dapm->dev, | |
30686c35 | 1246 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1247 | w->name, ret); |
1248 | } | |
1249 | ||
a3cc056b | 1250 | return regulator_enable(w->regulator); |
c05b84d1 | 1251 | } else { |
de9ba98b | 1252 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1253 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1254 | if (ret != 0) |
1255 | dev_warn(w->dapm->dev, | |
30686c35 | 1256 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1257 | w->name, ret); |
1258 | } | |
1259 | ||
a3cc056b | 1260 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1261 | } |
62ea874a MB |
1262 | } |
1263 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1264 | ||
d7e7eb91 OL |
1265 | /* |
1266 | * Handler for clock supply widget. | |
1267 | */ | |
1268 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1269 | struct snd_kcontrol *kcontrol, int event) | |
1270 | { | |
1271 | if (!w->clk) | |
1272 | return -EIO; | |
1273 | ||
eb270e98 MB |
1274 | soc_dapm_async_complete(w->dapm); |
1275 | ||
ec02995a | 1276 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1277 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1278 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1279 | } else { |
37c1b927 | 1280 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1281 | return 0; |
1282 | } | |
ec02995a | 1283 | #endif |
98b3cf12 | 1284 | return 0; |
d7e7eb91 OL |
1285 | } |
1286 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1287 | ||
d805002b MB |
1288 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1289 | { | |
9b8a83b2 MB |
1290 | if (w->power_checked) |
1291 | return w->new_power; | |
1292 | ||
d805002b | 1293 | if (w->force) |
9b8a83b2 | 1294 | w->new_power = 1; |
d805002b | 1295 | else |
9b8a83b2 MB |
1296 | w->new_power = w->power_check(w); |
1297 | ||
1298 | w->power_checked = true; | |
1299 | ||
1300 | return w->new_power; | |
d805002b MB |
1301 | } |
1302 | ||
cd0f2d47 MB |
1303 | /* Generic check to see if a widget should be powered. |
1304 | */ | |
1305 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1306 | { | |
1307 | int in, out; | |
1308 | ||
de02d078 MB |
1309 | DAPM_UPDATE_STAT(w, power_checks); |
1310 | ||
ec2e3031 | 1311 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1312 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1313 | return out != 0 && in != 0; |
1314 | } | |
1315 | ||
246d0a17 MB |
1316 | /* Check to see if a power supply is needed */ |
1317 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1318 | { | |
1319 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1320 | |
de02d078 MB |
1321 | DAPM_UPDATE_STAT(w, power_checks); |
1322 | ||
246d0a17 MB |
1323 | /* Check if one of our outputs is connected */ |
1324 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1325 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1326 | ||
bf3a9e13 MB |
1327 | if (path->weak) |
1328 | continue; | |
1329 | ||
215edda3 MB |
1330 | if (path->connected && |
1331 | !path->connected(path->source, path->sink)) | |
1332 | continue; | |
1333 | ||
f68d7e16 MB |
1334 | if (dapm_widget_power_check(path->sink)) |
1335 | return 1; | |
246d0a17 MB |
1336 | } |
1337 | ||
f68d7e16 | 1338 | return 0; |
246d0a17 MB |
1339 | } |
1340 | ||
35c64bca MB |
1341 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1342 | { | |
1343 | return 1; | |
1344 | } | |
1345 | ||
38357ab2 MB |
1346 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1347 | struct snd_soc_dapm_widget *b, | |
828a842f | 1348 | bool power_up) |
42aa3418 | 1349 | { |
828a842f MB |
1350 | int *sort; |
1351 | ||
1352 | if (power_up) | |
1353 | sort = dapm_up_seq; | |
1354 | else | |
1355 | sort = dapm_down_seq; | |
1356 | ||
38357ab2 MB |
1357 | if (sort[a->id] != sort[b->id]) |
1358 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1359 | if (a->subseq != b->subseq) { |
1360 | if (power_up) | |
1361 | return a->subseq - b->subseq; | |
1362 | else | |
1363 | return b->subseq - a->subseq; | |
1364 | } | |
b22ead2a MB |
1365 | if (a->reg != b->reg) |
1366 | return a->reg - b->reg; | |
84dab567 MB |
1367 | if (a->dapm != b->dapm) |
1368 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1369 | |
38357ab2 MB |
1370 | return 0; |
1371 | } | |
42aa3418 | 1372 | |
38357ab2 MB |
1373 | /* Insert a widget in order into a DAPM power sequence. */ |
1374 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1375 | struct list_head *list, | |
828a842f | 1376 | bool power_up) |
38357ab2 MB |
1377 | { |
1378 | struct snd_soc_dapm_widget *w; | |
1379 | ||
1380 | list_for_each_entry(w, list, power_list) | |
828a842f | 1381 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1382 | list_add_tail(&new_widget->power_list, &w->power_list); |
1383 | return; | |
1384 | } | |
1385 | ||
1386 | list_add_tail(&new_widget->power_list, list); | |
1387 | } | |
1388 | ||
95dd5cd6 | 1389 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1390 | struct snd_soc_dapm_widget *w, int event) |
1391 | { | |
68f89ad8 MB |
1392 | const char *ev_name; |
1393 | int power, ret; | |
1394 | ||
1395 | switch (event) { | |
1396 | case SND_SOC_DAPM_PRE_PMU: | |
1397 | ev_name = "PRE_PMU"; | |
1398 | power = 1; | |
1399 | break; | |
1400 | case SND_SOC_DAPM_POST_PMU: | |
1401 | ev_name = "POST_PMU"; | |
1402 | power = 1; | |
1403 | break; | |
1404 | case SND_SOC_DAPM_PRE_PMD: | |
1405 | ev_name = "PRE_PMD"; | |
1406 | power = 0; | |
1407 | break; | |
1408 | case SND_SOC_DAPM_POST_PMD: | |
1409 | ev_name = "POST_PMD"; | |
1410 | power = 0; | |
1411 | break; | |
80114129 MB |
1412 | case SND_SOC_DAPM_WILL_PMU: |
1413 | ev_name = "WILL_PMU"; | |
1414 | power = 1; | |
1415 | break; | |
1416 | case SND_SOC_DAPM_WILL_PMD: | |
1417 | ev_name = "WILL_PMD"; | |
1418 | power = 0; | |
1419 | break; | |
68f89ad8 | 1420 | default: |
a6ed0608 | 1421 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1422 | return; |
1423 | } | |
1424 | ||
39eb5fd1 | 1425 | if (w->new_power != power) |
68f89ad8 MB |
1426 | return; |
1427 | ||
1428 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1429 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1430 | w->name, ev_name); |
eb270e98 | 1431 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1432 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1433 | ret = w->event(w, NULL, event); |
84e90930 | 1434 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1435 | if (ret < 0) |
95dd5cd6 | 1436 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1437 | ev_name, w->name, ret); |
1438 | } | |
1439 | } | |
1440 | ||
b22ead2a | 1441 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1442 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1443 | struct list_head *pending) |
163cac06 | 1444 | { |
ce0fc93a | 1445 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1446 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1447 | int reg; |
b22ead2a MB |
1448 | unsigned int value = 0; |
1449 | unsigned int mask = 0; | |
b22ead2a | 1450 | |
ce0fc93a LPC |
1451 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1452 | reg = w->reg; | |
1453 | dapm = w->dapm; | |
b22ead2a MB |
1454 | |
1455 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1456 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1457 | w->power = w->new_power; |
b22ead2a | 1458 | |
de9ba98b LPC |
1459 | mask |= w->mask << w->shift; |
1460 | if (w->power) | |
1461 | value |= w->on_val << w->shift; | |
b22ead2a | 1462 | else |
de9ba98b | 1463 | value |= w->off_val << w->shift; |
b22ead2a | 1464 | |
ce0fc93a | 1465 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1466 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1467 | w->name, reg, value, mask); | |
81628103 | 1468 | |
68f89ad8 | 1469 | /* Check for events */ |
95dd5cd6 LPC |
1470 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1471 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1472 | } |
1473 | ||
1474 | if (reg >= 0) { | |
29376bc7 MB |
1475 | /* Any widget will do, they should all be updating the |
1476 | * same register. | |
1477 | */ | |
29376bc7 | 1478 | |
ce0fc93a | 1479 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1480 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1481 | value, mask, reg, card->pop_time); |
1482 | pop_wait(card->pop_time); | |
ce0fc93a | 1483 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1484 | } |
1485 | ||
81628103 | 1486 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1487 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1488 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1489 | } |
b22ead2a | 1490 | } |
42aa3418 | 1491 | |
b22ead2a MB |
1492 | /* Apply a DAPM power sequence. |
1493 | * | |
1494 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1495 | * order to minimise the number of writes to the device required | |
1496 | * multiple widgets will be updated in a single write where possible. | |
1497 | * Currently anything that requires more than a single write is not | |
1498 | * handled. | |
1499 | */ | |
95dd5cd6 LPC |
1500 | static void dapm_seq_run(struct snd_soc_card *card, |
1501 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1502 | { |
1503 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1504 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1505 | LIST_HEAD(pending); |
1506 | int cur_sort = -1; | |
20e4859d | 1507 | int cur_subseq = -1; |
b22ead2a | 1508 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1509 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1510 | int ret, i; |
828a842f MB |
1511 | int *sort; |
1512 | ||
1513 | if (power_up) | |
1514 | sort = dapm_up_seq; | |
1515 | else | |
1516 | sort = dapm_down_seq; | |
163cac06 | 1517 | |
b22ead2a MB |
1518 | list_for_each_entry_safe(w, n, list, power_list) { |
1519 | ret = 0; | |
1520 | ||
1521 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1522 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1523 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1524 | if (!list_empty(&pending)) |
95dd5cd6 | 1525 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1526 | |
474b62d6 MB |
1527 | if (cur_dapm && cur_dapm->seq_notifier) { |
1528 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1529 | if (sort[i] == cur_sort) | |
1530 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1531 | i, |
1532 | cur_subseq); | |
474b62d6 MB |
1533 | } |
1534 | ||
eb270e98 MB |
1535 | if (cur_dapm && w->dapm != cur_dapm) |
1536 | soc_dapm_async_complete(cur_dapm); | |
1537 | ||
b22ead2a MB |
1538 | INIT_LIST_HEAD(&pending); |
1539 | cur_sort = -1; | |
b0b3e6f8 | 1540 | cur_subseq = INT_MIN; |
b22ead2a | 1541 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1542 | cur_dapm = NULL; |
b22ead2a MB |
1543 | } |
1544 | ||
163cac06 MB |
1545 | switch (w->id) { |
1546 | case snd_soc_dapm_pre: | |
1547 | if (!w->event) | |
b22ead2a MB |
1548 | list_for_each_entry_safe_continue(w, n, list, |
1549 | power_list); | |
163cac06 | 1550 | |
b22ead2a | 1551 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1552 | ret = w->event(w, |
1553 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1554 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1555 | ret = w->event(w, |
1556 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1557 | break; |
1558 | ||
1559 | case snd_soc_dapm_post: | |
1560 | if (!w->event) | |
b22ead2a MB |
1561 | list_for_each_entry_safe_continue(w, n, list, |
1562 | power_list); | |
163cac06 | 1563 | |
b22ead2a | 1564 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1565 | ret = w->event(w, |
1566 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1567 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1568 | ret = w->event(w, |
1569 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1570 | break; |
1571 | ||
b22ead2a | 1572 | default: |
81628103 MB |
1573 | /* Queue it up for application */ |
1574 | cur_sort = sort[w->id]; | |
20e4859d | 1575 | cur_subseq = w->subseq; |
81628103 | 1576 | cur_reg = w->reg; |
7be31be8 | 1577 | cur_dapm = w->dapm; |
81628103 MB |
1578 | list_move(&w->power_list, &pending); |
1579 | break; | |
163cac06 | 1580 | } |
b22ead2a MB |
1581 | |
1582 | if (ret < 0) | |
f7d41ae8 | 1583 | dev_err(w->dapm->dev, |
30a6a1a4 | 1584 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1585 | } |
b22ead2a MB |
1586 | |
1587 | if (!list_empty(&pending)) | |
95dd5cd6 | 1588 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1589 | |
1590 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1591 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1592 | if (sort[i] == cur_sort) | |
1593 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1594 | i, cur_subseq); |
474b62d6 | 1595 | } |
eb270e98 MB |
1596 | |
1597 | list_for_each_entry(d, &card->dapm_list, list) { | |
1598 | soc_dapm_async_complete(d); | |
1599 | } | |
42aa3418 MB |
1600 | } |
1601 | ||
95dd5cd6 | 1602 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1603 | { |
95dd5cd6 | 1604 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1605 | struct snd_soc_dapm_widget_list *wlist; |
1606 | struct snd_soc_dapm_widget *w = NULL; | |
1607 | unsigned int wi; | |
97404f2e MB |
1608 | int ret; |
1609 | ||
57295073 | 1610 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1611 | return; |
1612 | ||
e84357f7 | 1613 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1614 | |
ce6cfaf1 LPC |
1615 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1616 | w = wlist->widgets[wi]; | |
1617 | ||
1618 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1619 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1620 | if (ret != 0) | |
95dd5cd6 | 1621 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1622 | w->name, ret); |
1623 | } | |
97404f2e MB |
1624 | } |
1625 | ||
ce6cfaf1 LPC |
1626 | if (!w) |
1627 | return; | |
1628 | ||
ce0fc93a LPC |
1629 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1630 | update->val); | |
97404f2e | 1631 | if (ret < 0) |
95dd5cd6 | 1632 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1633 | w->name, ret); |
97404f2e | 1634 | |
ce6cfaf1 LPC |
1635 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1636 | w = wlist->widgets[wi]; | |
1637 | ||
1638 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1639 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1640 | if (ret != 0) | |
95dd5cd6 | 1641 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1642 | w->name, ret); |
1643 | } | |
97404f2e MB |
1644 | } |
1645 | } | |
1646 | ||
9d0624a7 MB |
1647 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1648 | * they're changing state. | |
1649 | */ | |
1650 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1651 | { | |
1652 | struct snd_soc_dapm_context *d = data; | |
1653 | int ret; | |
1654 | ||
56fba41f MB |
1655 | /* If we're off and we're not supposed to be go into STANDBY */ |
1656 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1657 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1658 | if (d->dev) |
1659 | pm_runtime_get_sync(d->dev); | |
1660 | ||
9d0624a7 MB |
1661 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1662 | if (ret != 0) | |
1663 | dev_err(d->dev, | |
30a6a1a4 | 1664 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1665 | } |
1666 | ||
ce85a4d7 LPC |
1667 | /* Prepare for a transition to ON or away from ON */ |
1668 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1669 | d->bias_level != SND_SOC_BIAS_ON) || | |
1670 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1671 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1672 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1673 | if (ret != 0) | |
1674 | dev_err(d->dev, | |
30a6a1a4 | 1675 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1676 | } |
1677 | } | |
1678 | ||
1679 | /* Async callback run prior to DAPM sequences - brings to their final | |
1680 | * state. | |
1681 | */ | |
1682 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1683 | { | |
1684 | struct snd_soc_dapm_context *d = data; | |
1685 | int ret; | |
1686 | ||
1687 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1688 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1689 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1690 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1691 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1692 | if (ret != 0) | |
30a6a1a4 | 1693 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1694 | ret); |
1695 | } | |
97404f2e | 1696 | |
9d0624a7 | 1697 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1698 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1699 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1700 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1701 | if (ret != 0) | |
30a6a1a4 LG |
1702 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1703 | ret); | |
f1aac484 MB |
1704 | |
1705 | if (d->dev) | |
fb644e9c | 1706 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1707 | } |
1708 | ||
1709 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1710 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1711 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1712 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1713 | if (ret != 0) | |
30a6a1a4 | 1714 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1715 | ret); |
1716 | } | |
1717 | } | |
97404f2e | 1718 | |
fe4fda5d MB |
1719 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1720 | bool power, bool connect) | |
1721 | { | |
1722 | /* If a connection is being made or broken then that update | |
1723 | * will have marked the peer dirty, otherwise the widgets are | |
1724 | * not connected and this update has no impact. */ | |
1725 | if (!connect) | |
1726 | return; | |
1727 | ||
1728 | /* If the peer is already in the state we're moving to then we | |
1729 | * won't have an impact on it. */ | |
1730 | if (power != peer->power) | |
75c1f891 | 1731 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1732 | } |
1733 | ||
05623c43 MB |
1734 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1735 | struct list_head *up_list, | |
1736 | struct list_head *down_list) | |
1737 | { | |
db432b41 MB |
1738 | struct snd_soc_dapm_path *path; |
1739 | ||
05623c43 MB |
1740 | if (w->power == power) |
1741 | return; | |
1742 | ||
1743 | trace_snd_soc_dapm_widget_power(w, power); | |
1744 | ||
db432b41 | 1745 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1746 | * also. |
db432b41 | 1747 | */ |
7ddd4cd5 LPC |
1748 | list_for_each_entry(path, &w->sources, list_sink) |
1749 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1750 | ||
6dd98b0a LPC |
1751 | /* Supplies can't affect their outputs, only their inputs */ |
1752 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1753 | list_for_each_entry(path, &w->sinks, list_source) |
1754 | dapm_widget_set_peer_power(path->sink, power, | |
1755 | path->connect); | |
db432b41 MB |
1756 | } |
1757 | ||
05623c43 MB |
1758 | if (power) |
1759 | dapm_seq_insert(w, up_list, true); | |
1760 | else | |
1761 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1762 | } |
1763 | ||
7c81beb0 MB |
1764 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1765 | struct list_head *up_list, | |
1766 | struct list_head *down_list) | |
1767 | { | |
7c81beb0 MB |
1768 | int power; |
1769 | ||
1770 | switch (w->id) { | |
1771 | case snd_soc_dapm_pre: | |
1772 | dapm_seq_insert(w, down_list, false); | |
1773 | break; | |
1774 | case snd_soc_dapm_post: | |
1775 | dapm_seq_insert(w, up_list, true); | |
1776 | break; | |
1777 | ||
1778 | default: | |
d805002b | 1779 | power = dapm_widget_power_check(w); |
7c81beb0 | 1780 | |
05623c43 | 1781 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1782 | break; |
1783 | } | |
1784 | } | |
1785 | ||
86dbf2ac LPC |
1786 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1787 | { | |
1788 | if (dapm->idle_bias_off) | |
1789 | return true; | |
1790 | ||
1791 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1792 | case SNDRV_CTL_POWER_D3hot: | |
1793 | case SNDRV_CTL_POWER_D3cold: | |
1794 | return dapm->suspend_bias_off; | |
1795 | default: | |
1796 | break; | |
1797 | } | |
1798 | ||
1799 | return false; | |
1800 | } | |
1801 | ||
2b97eabc RP |
1802 | /* |
1803 | * Scan each dapm widget for complete audio path. | |
1804 | * A complete path is a route that has valid endpoints i.e.:- | |
1805 | * | |
1806 | * o DAC to output pin. | |
1807 | * o Input Pin to ADC. | |
1808 | * o Input pin to Output pin (bypass, sidetone) | |
1809 | * o DAC to ADC (loopback). | |
1810 | */ | |
95dd5cd6 | 1811 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1812 | { |
1813 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1814 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1815 | LIST_HEAD(up_list); |
1816 | LIST_HEAD(down_list); | |
2955b47d | 1817 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1818 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1819 | |
f9fa2b18 MB |
1820 | lockdep_assert_held(&card->dapm_mutex); |
1821 | ||
84e90930 MB |
1822 | trace_snd_soc_dapm_start(card); |
1823 | ||
56fba41f | 1824 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1825 | if (dapm_idle_bias_off(d)) |
497098be MB |
1826 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1827 | else | |
1828 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1829 | } |
7be31be8 | 1830 | |
6c120e19 | 1831 | dapm_reset(card); |
9b8a83b2 | 1832 | |
6d3ddc81 | 1833 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1834 | * lists indicating if they should be powered up or down. We |
1835 | * only check widgets that have been flagged as dirty but note | |
1836 | * that new widgets may be added to the dirty list while we | |
1837 | * iterate. | |
6d3ddc81 | 1838 | */ |
db432b41 | 1839 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1840 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1841 | } |
1842 | ||
f9de6d74 | 1843 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1844 | switch (w->id) { |
1845 | case snd_soc_dapm_pre: | |
1846 | case snd_soc_dapm_post: | |
1847 | /* These widgets always need to be powered */ | |
1848 | break; | |
1849 | default: | |
1850 | list_del_init(&w->dirty); | |
1851 | break; | |
1852 | } | |
db432b41 | 1853 | |
39eb5fd1 | 1854 | if (w->new_power) { |
f9de6d74 MB |
1855 | d = w->dapm; |
1856 | ||
1857 | /* Supplies and micbiases only bring the | |
1858 | * context up to STANDBY as unless something | |
1859 | * else is active and passing audio they | |
afe62367 MB |
1860 | * generally don't require full power. Signal |
1861 | * generators are virtual pins and have no | |
1862 | * power impact themselves. | |
f9de6d74 MB |
1863 | */ |
1864 | switch (w->id) { | |
afe62367 | 1865 | case snd_soc_dapm_siggen: |
da83fea6 | 1866 | case snd_soc_dapm_vmid: |
afe62367 | 1867 | break; |
f9de6d74 | 1868 | case snd_soc_dapm_supply: |
62ea874a | 1869 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1870 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1871 | case snd_soc_dapm_micbias: |
1872 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1873 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1874 | break; | |
1875 | default: | |
1876 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1877 | break; | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | } | |
1882 | ||
85a843c5 MB |
1883 | /* Force all contexts in the card to the same bias state if |
1884 | * they're not ground referenced. | |
1885 | */ | |
56fba41f | 1886 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1887 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1888 | if (d->target_bias_level > bias) |
1889 | bias = d->target_bias_level; | |
52ba67bf | 1890 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1891 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1892 | d->target_bias_level = bias; |
52ba67bf | 1893 | |
de02d078 | 1894 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1895 | |
17282ba4 XX |
1896 | /* Run card bias changes at first */ |
1897 | dapm_pre_sequence_async(&card->dapm, 0); | |
1898 | /* Run other bias changes in parallel */ | |
1899 | list_for_each_entry(d, &card->dapm_list, list) { | |
1900 | if (d != &card->dapm) | |
1901 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1902 | &async_domain); | |
1903 | } | |
9d0624a7 | 1904 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1905 | |
cf1f7c6e | 1906 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1907 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1908 | } |
1909 | ||
cf1f7c6e | 1910 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1911 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1912 | } |
1913 | ||
6d3ddc81 | 1914 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1915 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1916 | |
95dd5cd6 | 1917 | dapm_widget_update(card); |
97404f2e | 1918 | |
6d3ddc81 | 1919 | /* Now power up. */ |
95dd5cd6 | 1920 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1921 | |
9d0624a7 | 1922 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1923 | list_for_each_entry(d, &card->dapm_list, list) { |
1924 | if (d != &card->dapm) | |
1925 | async_schedule_domain(dapm_post_sequence_async, d, | |
1926 | &async_domain); | |
1927 | } | |
9d0624a7 | 1928 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1929 | /* Run card bias changes at last */ |
1930 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1931 | |
8078d87f LG |
1932 | /* do we need to notify any clients that DAPM event is complete */ |
1933 | list_for_each_entry(d, &card->dapm_list, list) { | |
1934 | if (d->stream_event) | |
1935 | d->stream_event(d, event); | |
1936 | } | |
1937 | ||
95dd5cd6 | 1938 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1939 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1940 | pop_wait(card->pop_time); |
cb507e7e | 1941 | |
84e90930 MB |
1942 | trace_snd_soc_dapm_done(card); |
1943 | ||
42aa3418 | 1944 | return 0; |
2b97eabc RP |
1945 | } |
1946 | ||
79fb9387 | 1947 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1948 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1949 | char __user *user_buf, | |
1950 | size_t count, loff_t *ppos) | |
1951 | { | |
1952 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1953 | struct snd_soc_card *card = w->dapm->card; |
79fb9387 MB |
1954 | char *buf; |
1955 | int in, out; | |
1956 | ssize_t ret; | |
1957 | struct snd_soc_dapm_path *p = NULL; | |
1958 | ||
1959 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1960 | if (!buf) | |
1961 | return -ENOMEM; | |
1962 | ||
e50b1e06 LPC |
1963 | mutex_lock(&card->dapm_mutex); |
1964 | ||
c1862c8b LPC |
1965 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1966 | if (w->is_supply) { | |
1967 | in = 0; | |
1968 | out = 0; | |
1969 | } else { | |
1970 | in = is_connected_input_ep(w, NULL); | |
1971 | out = is_connected_output_ep(w, NULL); | |
1972 | } | |
79fb9387 | 1973 | |
f13ebada MB |
1974 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1975 | w->name, w->power ? "On" : "Off", | |
1976 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1977 | |
d033c36a MB |
1978 | if (w->reg >= 0) |
1979 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1980 | " - R%d(0x%x) mask 0x%x", |
1981 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1982 | |
1983 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1984 | ||
3eef08ba MB |
1985 | if (w->sname) |
1986 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1987 | w->sname, | |
1988 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1989 | |
1990 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1991 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1992 | continue; |
1993 | ||
79fb9387 MB |
1994 | if (p->connect) |
1995 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1996 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1997 | p->name ? p->name : "static", |
1998 | p->source->name); | |
1999 | } | |
2000 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
2001 | if (p->connected && !p->connected(w, p->sink)) |
2002 | continue; | |
2003 | ||
79fb9387 MB |
2004 | if (p->connect) |
2005 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 2006 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
2007 | p->name ? p->name : "static", |
2008 | p->sink->name); | |
2009 | } | |
2010 | ||
e50b1e06 LPC |
2011 | mutex_unlock(&card->dapm_mutex); |
2012 | ||
79fb9387 MB |
2013 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2014 | ||
2015 | kfree(buf); | |
2016 | return ret; | |
2017 | } | |
2018 | ||
2019 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2020 | .open = simple_open, |
79fb9387 | 2021 | .read = dapm_widget_power_read_file, |
6038f373 | 2022 | .llseek = default_llseek, |
79fb9387 MB |
2023 | }; |
2024 | ||
ef49e4fa MB |
2025 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2026 | size_t count, loff_t *ppos) | |
2027 | { | |
2028 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2029 | char *level; | |
2030 | ||
2031 | switch (dapm->bias_level) { | |
2032 | case SND_SOC_BIAS_ON: | |
2033 | level = "On\n"; | |
2034 | break; | |
2035 | case SND_SOC_BIAS_PREPARE: | |
2036 | level = "Prepare\n"; | |
2037 | break; | |
2038 | case SND_SOC_BIAS_STANDBY: | |
2039 | level = "Standby\n"; | |
2040 | break; | |
2041 | case SND_SOC_BIAS_OFF: | |
2042 | level = "Off\n"; | |
2043 | break; | |
2044 | default: | |
a6ed0608 | 2045 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2046 | level = "Unknown\n"; |
2047 | break; | |
2048 | } | |
2049 | ||
2050 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2051 | strlen(level)); | |
2052 | } | |
2053 | ||
2054 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2055 | .open = simple_open, |
ef49e4fa MB |
2056 | .read = dapm_bias_read_file, |
2057 | .llseek = default_llseek, | |
2058 | }; | |
2059 | ||
8eecaf62 LPC |
2060 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2061 | struct dentry *parent) | |
79fb9387 | 2062 | { |
79fb9387 MB |
2063 | struct dentry *d; |
2064 | ||
6553bf06 LPC |
2065 | if (!parent) |
2066 | return; | |
2067 | ||
8eecaf62 LPC |
2068 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2069 | ||
2070 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2071 | dev_warn(dapm->dev, |
30a6a1a4 | 2072 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2073 | return; |
8eecaf62 | 2074 | } |
79fb9387 | 2075 | |
ef49e4fa MB |
2076 | d = debugfs_create_file("bias_level", 0444, |
2077 | dapm->debugfs_dapm, dapm, | |
2078 | &dapm_bias_fops); | |
2079 | if (!d) | |
2080 | dev_warn(dapm->dev, | |
2081 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2082 | } |
ef49e4fa | 2083 | |
d5d1e0be LPC |
2084 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2085 | { | |
2086 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2087 | struct dentry *d; | |
79fb9387 | 2088 | |
d5d1e0be LPC |
2089 | if (!dapm->debugfs_dapm || !w->name) |
2090 | return; | |
2091 | ||
2092 | d = debugfs_create_file(w->name, 0444, | |
2093 | dapm->debugfs_dapm, w, | |
2094 | &dapm_widget_power_fops); | |
2095 | if (!d) | |
2096 | dev_warn(w->dapm->dev, | |
2097 | "ASoC: Failed to create %s debugfs file\n", | |
2098 | w->name); | |
79fb9387 | 2099 | } |
d5d1e0be | 2100 | |
6c45e126 LPC |
2101 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2102 | { | |
2103 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2104 | } | |
2105 | ||
79fb9387 | 2106 | #else |
8eecaf62 LPC |
2107 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2108 | struct dentry *parent) | |
79fb9387 MB |
2109 | { |
2110 | } | |
d5d1e0be LPC |
2111 | |
2112 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2113 | { | |
2114 | } | |
2115 | ||
6c45e126 LPC |
2116 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2117 | { | |
2118 | } | |
2119 | ||
79fb9387 MB |
2120 | #endif |
2121 | ||
4a201948 LPC |
2122 | /* |
2123 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2124 | * @path: The path to update | |
2125 | * @connect: The new connect state of the path. True if the path is connected, | |
2126 | * false if it is disconneted. | |
2127 | * @reason: The reason why the path changed (for debugging only) | |
2128 | */ | |
2129 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2130 | bool connect, const char *reason) | |
2131 | { | |
2132 | if (path->connect == connect) | |
2133 | return; | |
2134 | ||
2135 | path->connect = connect; | |
2136 | dapm_mark_dirty(path->source, reason); | |
2137 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2138 | dapm_path_invalidate(path); |
4a201948 LPC |
2139 | } |
2140 | ||
2b97eabc | 2141 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2142 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2143 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2144 | { |
2145 | struct snd_soc_dapm_path *path; | |
2146 | int found = 0; | |
4a201948 | 2147 | bool connect; |
2b97eabc | 2148 | |
f9fa2b18 MB |
2149 | lockdep_assert_held(&card->dapm_mutex); |
2150 | ||
2b97eabc | 2151 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2152 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2153 | found = 1; |
2154 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2155 | if (!(strcmp(path->name, e->texts[mux]))) |
2156 | connect = true; | |
2157 | else | |
2158 | connect = false; | |
2159 | ||
2160 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2161 | } |
2162 | ||
ce6cfaf1 | 2163 | if (found) |
95dd5cd6 | 2164 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2165 | |
618dae11 | 2166 | return found; |
2b97eabc | 2167 | } |
4edbb345 | 2168 | |
ce6cfaf1 | 2169 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2170 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2171 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2172 | { |
ce6cfaf1 | 2173 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2174 | int ret; |
2175 | ||
3cd04343 | 2176 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2177 | card->update = update; |
95dd5cd6 | 2178 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2179 | card->update = NULL; |
4edbb345 | 2180 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2181 | if (ret > 0) |
c3f48ae6 | 2182 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2183 | return ret; |
2184 | } | |
40f02cd9 | 2185 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2186 | |
1b075e3f | 2187 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2188 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2189 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2190 | { |
2191 | struct snd_soc_dapm_path *path; | |
2192 | int found = 0; | |
2193 | ||
f9fa2b18 MB |
2194 | lockdep_assert_held(&card->dapm_mutex); |
2195 | ||
2b97eabc | 2196 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2197 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2198 | found = 1; |
4a201948 | 2199 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2200 | } |
2201 | ||
ce6cfaf1 | 2202 | if (found) |
95dd5cd6 | 2203 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2204 | |
618dae11 | 2205 | return found; |
2b97eabc | 2206 | } |
4edbb345 | 2207 | |
ce6cfaf1 | 2208 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2209 | struct snd_kcontrol *kcontrol, int connect, |
2210 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2211 | { |
ce6cfaf1 | 2212 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2213 | int ret; |
2214 | ||
3cd04343 | 2215 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2216 | card->update = update; |
95dd5cd6 | 2217 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2218 | card->update = NULL; |
4edbb345 | 2219 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2220 | if (ret > 0) |
c3f48ae6 | 2221 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2222 | return ret; |
2223 | } | |
40f02cd9 | 2224 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2225 | |
44ba2641 | 2226 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2227 | { |
2b97eabc RP |
2228 | struct snd_soc_dapm_widget *w; |
2229 | int count = 0; | |
2230 | char *state = "not set"; | |
2231 | ||
00200107 | 2232 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2233 | if (w->dapm != &codec->dapm) |
2234 | continue; | |
2b97eabc RP |
2235 | |
2236 | /* only display widgets that burnm power */ | |
2237 | switch (w->id) { | |
2238 | case snd_soc_dapm_hp: | |
2239 | case snd_soc_dapm_mic: | |
2240 | case snd_soc_dapm_spk: | |
2241 | case snd_soc_dapm_line: | |
2242 | case snd_soc_dapm_micbias: | |
2243 | case snd_soc_dapm_dac: | |
2244 | case snd_soc_dapm_adc: | |
2245 | case snd_soc_dapm_pga: | |
d88429a6 | 2246 | case snd_soc_dapm_out_drv: |
2b97eabc | 2247 | case snd_soc_dapm_mixer: |
ca9c1aae | 2248 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2249 | case snd_soc_dapm_supply: |
62ea874a | 2250 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2251 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2252 | if (w->name) |
2253 | count += sprintf(buf + count, "%s: %s\n", | |
2254 | w->name, w->power ? "On":"Off"); | |
2255 | break; | |
2256 | default: | |
2257 | break; | |
2258 | } | |
2259 | } | |
2260 | ||
ce6120cc | 2261 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2262 | case SND_SOC_BIAS_ON: |
2263 | state = "On"; | |
2b97eabc | 2264 | break; |
0be9898a MB |
2265 | case SND_SOC_BIAS_PREPARE: |
2266 | state = "Prepare"; | |
2b97eabc | 2267 | break; |
0be9898a MB |
2268 | case SND_SOC_BIAS_STANDBY: |
2269 | state = "Standby"; | |
2b97eabc | 2270 | break; |
0be9898a MB |
2271 | case SND_SOC_BIAS_OFF: |
2272 | state = "Off"; | |
2b97eabc RP |
2273 | break; |
2274 | } | |
2275 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2276 | ||
2277 | return count; | |
2278 | } | |
2279 | ||
44ba2641 BC |
2280 | /* show dapm widget status in sys fs */ |
2281 | static ssize_t dapm_widget_show(struct device *dev, | |
2282 | struct device_attribute *attr, char *buf) | |
2283 | { | |
2284 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2285 | int i, count = 0; | |
2286 | ||
e50b1e06 LPC |
2287 | mutex_lock(&rtd->card->dapm_mutex); |
2288 | ||
44ba2641 BC |
2289 | for (i = 0; i < rtd->num_codecs; i++) { |
2290 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2291 | count += dapm_widget_show_codec(codec, buf + count); | |
2292 | } | |
2293 | ||
e50b1e06 LPC |
2294 | mutex_unlock(&rtd->card->dapm_mutex); |
2295 | ||
44ba2641 BC |
2296 | return count; |
2297 | } | |
2298 | ||
2b97eabc RP |
2299 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2300 | ||
d29697dc TI |
2301 | struct attribute *soc_dapm_dev_attrs[] = { |
2302 | &dev_attr_dapm_widget.attr, | |
2303 | NULL | |
2304 | }; | |
2b97eabc | 2305 | |
8872293f LPC |
2306 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2307 | { | |
2308 | list_del(&path->list_sink); | |
2309 | list_del(&path->list_source); | |
5106b92f | 2310 | list_del(&path->list_kcontrol); |
8872293f | 2311 | list_del(&path->list); |
8872293f LPC |
2312 | kfree(path); |
2313 | } | |
2314 | ||
2b97eabc | 2315 | /* free all dapm widgets and resources */ |
ce6120cc | 2316 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2317 | { |
2318 | struct snd_soc_dapm_widget *w, *next_w; | |
2319 | struct snd_soc_dapm_path *p, *next_p; | |
2320 | ||
97c866de JN |
2321 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2322 | if (w->dapm != dapm) | |
2323 | continue; | |
2b97eabc | 2324 | list_del(&w->list); |
8ddab3f5 JN |
2325 | /* |
2326 | * remove source and sink paths associated to this widget. | |
2327 | * While removing the path, remove reference to it from both | |
2328 | * source and sink widgets so that path is removed only once. | |
2329 | */ | |
8872293f LPC |
2330 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2331 | dapm_free_path(p); | |
2332 | ||
2333 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2334 | dapm_free_path(p); | |
2335 | ||
fad59888 | 2336 | kfree(w->kcontrols); |
ead9b919 | 2337 | kfree(w->name); |
2b97eabc RP |
2338 | kfree(w); |
2339 | } | |
2b97eabc RP |
2340 | } |
2341 | ||
91a5fca4 LPC |
2342 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2343 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2344 | bool search_other_contexts) | |
a5302181 LG |
2345 | { |
2346 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2347 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2348 | |
97c866de | 2349 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2350 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2351 | if (w->dapm == dapm) |
2352 | return w; | |
2353 | else | |
2354 | fallback = w; | |
a5302181 LG |
2355 | } |
2356 | } | |
2357 | ||
91a5fca4 LPC |
2358 | if (search_other_contexts) |
2359 | return fallback; | |
2360 | ||
2361 | return NULL; | |
2362 | } | |
2363 | ||
2364 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2365 | const char *pin, int status) | |
2366 | { | |
2367 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2368 | ||
f9fa2b18 MB |
2369 | dapm_assert_locked(dapm); |
2370 | ||
91a5fca4 | 2371 | if (!w) { |
30a6a1a4 | 2372 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2373 | return -EINVAL; |
0d86733c MB |
2374 | } |
2375 | ||
92a99ea4 | 2376 | if (w->connected != status) { |
1a8b2d9d | 2377 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2378 | dapm_widget_invalidate_input_paths(w); |
2379 | dapm_widget_invalidate_output_paths(w); | |
2380 | } | |
1a8b2d9d | 2381 | |
91a5fca4 LPC |
2382 | w->connected = status; |
2383 | if (status == 0) | |
2384 | w->force = 0; | |
2385 | ||
2386 | return 0; | |
a5302181 LG |
2387 | } |
2388 | ||
2b97eabc | 2389 | /** |
3eb29dfb | 2390 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2391 | * @dapm: DAPM context |
2b97eabc RP |
2392 | * |
2393 | * Walks all dapm audio paths and powers widgets according to their | |
2394 | * stream or path usage. | |
2395 | * | |
3eb29dfb CK |
2396 | * Requires external locking. |
2397 | * | |
2b97eabc RP |
2398 | * Returns 0 for success. |
2399 | */ | |
3eb29dfb | 2400 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2401 | { |
4f4c0072 MB |
2402 | /* |
2403 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2404 | * silly DAPM runs during card startup. | |
2405 | */ | |
2406 | if (!dapm->card || !dapm->card->instantiated) | |
2407 | return 0; | |
2408 | ||
3eb29dfb CK |
2409 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2410 | } | |
2411 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2412 | ||
2413 | /** | |
2414 | * snd_soc_dapm_sync - scan and power dapm paths | |
2415 | * @dapm: DAPM context | |
2416 | * | |
2417 | * Walks all dapm audio paths and powers widgets according to their | |
2418 | * stream or path usage. | |
2419 | * | |
2420 | * Returns 0 for success. | |
2421 | */ | |
2422 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2423 | { | |
2424 | int ret; | |
2425 | ||
3cd04343 | 2426 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2427 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2428 | mutex_unlock(&dapm->card->dapm_mutex); |
2429 | return ret; | |
2b97eabc | 2430 | } |
a5302181 | 2431 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2432 | |
6dd98b0a LPC |
2433 | /* |
2434 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2435 | * @w: The widget for which to update the flags | |
2436 | * | |
2437 | * Some widgets have a dynamic category which depends on which neighbors they | |
2438 | * are connected to. This function update the category for these widgets. | |
2439 | * | |
2440 | * This function must be called whenever a path is added or removed to a widget. | |
2441 | */ | |
2442 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2443 | { | |
2444 | struct snd_soc_dapm_path *p; | |
2445 | ||
2446 | switch (w->id) { | |
2447 | case snd_soc_dapm_input: | |
86d75003 LPC |
2448 | /* On a fully routed card a input is never a source */ |
2449 | if (w->dapm->card->fully_routed) | |
2450 | break; | |
6dd98b0a LPC |
2451 | w->is_source = 1; |
2452 | list_for_each_entry(p, &w->sources, list_sink) { | |
2453 | if (p->source->id == snd_soc_dapm_micbias || | |
2454 | p->source->id == snd_soc_dapm_mic || | |
2455 | p->source->id == snd_soc_dapm_line || | |
2456 | p->source->id == snd_soc_dapm_output) { | |
2457 | w->is_source = 0; | |
2458 | break; | |
2459 | } | |
2460 | } | |
2461 | break; | |
2462 | case snd_soc_dapm_output: | |
86d75003 LPC |
2463 | /* On a fully routed card a output is never a sink */ |
2464 | if (w->dapm->card->fully_routed) | |
2465 | break; | |
6dd98b0a LPC |
2466 | w->is_sink = 1; |
2467 | list_for_each_entry(p, &w->sinks, list_source) { | |
2468 | if (p->sink->id == snd_soc_dapm_spk || | |
2469 | p->sink->id == snd_soc_dapm_hp || | |
2470 | p->sink->id == snd_soc_dapm_line || | |
2471 | p->sink->id == snd_soc_dapm_input) { | |
2472 | w->is_sink = 0; | |
2473 | break; | |
2474 | } | |
2475 | } | |
2476 | break; | |
2477 | case snd_soc_dapm_line: | |
2478 | w->is_sink = !list_empty(&w->sources); | |
2479 | w->is_source = !list_empty(&w->sinks); | |
2480 | break; | |
2481 | default: | |
2482 | break; | |
2483 | } | |
2484 | } | |
2485 | ||
d714f97c LPC |
2486 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2487 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2488 | const char *control) | |
2489 | { | |
2490 | bool dynamic_source = false; | |
2491 | bool dynamic_sink = false; | |
2492 | ||
2493 | if (!control) | |
2494 | return 0; | |
2495 | ||
2496 | switch (source->id) { | |
2497 | case snd_soc_dapm_demux: | |
2498 | dynamic_source = true; | |
2499 | break; | |
2500 | default: | |
2501 | break; | |
2502 | } | |
2503 | ||
2504 | switch (sink->id) { | |
2505 | case snd_soc_dapm_mux: | |
2506 | case snd_soc_dapm_switch: | |
2507 | case snd_soc_dapm_mixer: | |
2508 | case snd_soc_dapm_mixer_named_ctl: | |
2509 | dynamic_sink = true; | |
2510 | break; | |
2511 | default: | |
2512 | break; | |
2513 | } | |
2514 | ||
2515 | if (dynamic_source && dynamic_sink) { | |
2516 | dev_err(dapm->dev, | |
2517 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2518 | source->name, control, sink->name); | |
2519 | return -EINVAL; | |
2520 | } else if (!dynamic_source && !dynamic_sink) { | |
2521 | dev_err(dapm->dev, | |
2522 | "Control not supported for path %s -> [%s] -> %s\n", | |
2523 | source->name, control, sink->name); | |
2524 | return -EINVAL; | |
2525 | } | |
2526 | ||
2527 | return 0; | |
2528 | } | |
2529 | ||
2553628e LPC |
2530 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2531 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2532 | const char *control, | |
2533 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2534 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2535 | { |
2536 | struct snd_soc_dapm_path *path; | |
2553628e | 2537 | int ret; |
2b97eabc | 2538 | |
e409dfbf LPC |
2539 | if (wsink->is_supply && !wsource->is_supply) { |
2540 | dev_err(dapm->dev, | |
2541 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2542 | wsource->name, wsink->name); | |
2543 | return -EINVAL; | |
2544 | } | |
2545 | ||
2546 | if (connected && !wsource->is_supply) { | |
2547 | dev_err(dapm->dev, | |
2548 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2549 | wsource->name, wsink->name); | |
2550 | return -EINVAL; | |
2551 | } | |
2552 | ||
2553 | if (wsource->is_supply && control) { | |
2554 | dev_err(dapm->dev, | |
2555 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2556 | wsource->name, control, wsink->name); | |
2557 | return -EINVAL; | |
2558 | } | |
2559 | ||
d714f97c LPC |
2560 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2561 | if (ret) | |
2562 | return ret; | |
2563 | ||
2b97eabc RP |
2564 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2565 | if (!path) | |
2566 | return -ENOMEM; | |
2567 | ||
2568 | path->source = wsource; | |
2569 | path->sink = wsink; | |
2553628e | 2570 | path->connected = connected; |
2b97eabc | 2571 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2572 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2573 | INIT_LIST_HEAD(&path->list_source); |
2574 | INIT_LIST_HEAD(&path->list_sink); | |
2575 | ||
c1862c8b LPC |
2576 | if (wsource->is_supply || wsink->is_supply) |
2577 | path->is_supply = 1; | |
2578 | ||
2b97eabc RP |
2579 | /* connect static paths */ |
2580 | if (control == NULL) { | |
2b97eabc | 2581 | path->connect = 1; |
5fe5b767 | 2582 | } else { |
d714f97c LPC |
2583 | switch (wsource->id) { |
2584 | case snd_soc_dapm_demux: | |
2585 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2586 | if (ret) | |
2587 | goto err; | |
2588 | break; | |
2589 | default: | |
2590 | break; | |
2591 | } | |
2592 | ||
5fe5b767 LPC |
2593 | switch (wsink->id) { |
2594 | case snd_soc_dapm_mux: | |
d714f97c | 2595 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2596 | if (ret != 0) |
2597 | goto err; | |
2598 | break; | |
2599 | case snd_soc_dapm_switch: | |
2600 | case snd_soc_dapm_mixer: | |
2601 | case snd_soc_dapm_mixer_named_ctl: | |
2602 | ret = dapm_connect_mixer(dapm, path, control); | |
2603 | if (ret != 0) | |
2604 | goto err; | |
2605 | break; | |
2606 | default: | |
d714f97c | 2607 | break; |
5fe5b767 | 2608 | } |
2b97eabc | 2609 | } |
fabd0384 | 2610 | |
5fe5b767 LPC |
2611 | list_add(&path->list, &dapm->card->paths); |
2612 | list_add(&path->list_sink, &wsink->sources); | |
2613 | list_add(&path->list_source, &wsource->sinks); | |
2614 | ||
6dd98b0a LPC |
2615 | dapm_update_widget_flags(wsource); |
2616 | dapm_update_widget_flags(wsink); | |
2617 | ||
5fe5b767 LPC |
2618 | dapm_mark_dirty(wsource, "Route added"); |
2619 | dapm_mark_dirty(wsink, "Route added"); | |
2620 | ||
92a99ea4 LPC |
2621 | if (dapm->card->instantiated && path->connect) |
2622 | dapm_path_invalidate(path); | |
2623 | ||
2b97eabc | 2624 | return 0; |
2553628e LPC |
2625 | err: |
2626 | kfree(path); | |
2627 | return ret; | |
2628 | } | |
2b97eabc | 2629 | |
2553628e | 2630 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2631 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2632 | { |
2633 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2634 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2635 | const char *sink; | |
2636 | const char *source; | |
2637 | char prefixed_sink[80]; | |
2638 | char prefixed_source[80]; | |
94f99c87 | 2639 | const char *prefix; |
2553628e LPC |
2640 | int ret; |
2641 | ||
94f99c87 LPC |
2642 | prefix = soc_dapm_prefix(dapm); |
2643 | if (prefix) { | |
2553628e | 2644 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2645 | prefix, route->sink); |
2553628e LPC |
2646 | sink = prefixed_sink; |
2647 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2648 | prefix, route->source); |
2553628e LPC |
2649 | source = prefixed_source; |
2650 | } else { | |
2651 | sink = route->sink; | |
2652 | source = route->source; | |
2653 | } | |
2654 | ||
45a110a1 CK |
2655 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2656 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2657 | ||
2658 | if (wsink && wsource) | |
2659 | goto skip_search; | |
2660 | ||
2553628e LPC |
2661 | /* |
2662 | * find src and dest widgets over all widgets but favor a widget from | |
2663 | * current DAPM context | |
2664 | */ | |
2665 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2666 | if (!wsink && !(strcmp(w->name, sink))) { | |
2667 | wtsink = w; | |
70c75109 | 2668 | if (w->dapm == dapm) { |
2553628e | 2669 | wsink = w; |
70c75109 CK |
2670 | if (wsource) |
2671 | break; | |
2672 | } | |
2553628e LPC |
2673 | continue; |
2674 | } | |
2675 | if (!wsource && !(strcmp(w->name, source))) { | |
2676 | wtsource = w; | |
70c75109 | 2677 | if (w->dapm == dapm) { |
2553628e | 2678 | wsource = w; |
70c75109 CK |
2679 | if (wsink) |
2680 | break; | |
2681 | } | |
2553628e LPC |
2682 | } |
2683 | } | |
2684 | /* use widget from another DAPM context if not found from this */ | |
2685 | if (!wsink) | |
2686 | wsink = wtsink; | |
2687 | if (!wsource) | |
2688 | wsource = wtsource; | |
2689 | ||
2690 | if (wsource == NULL) { | |
2691 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2692 | route->source); | |
2693 | return -ENODEV; | |
2694 | } | |
2695 | if (wsink == NULL) { | |
2696 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2697 | route->sink); | |
2698 | return -ENODEV; | |
2699 | } | |
2700 | ||
45a110a1 CK |
2701 | skip_search: |
2702 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2703 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2704 | ||
2553628e LPC |
2705 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2706 | route->connected); | |
2707 | if (ret) | |
2708 | goto err; | |
2709 | ||
2710 | return 0; | |
2b97eabc | 2711 | err: |
30a6a1a4 | 2712 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2713 | source, route->control, sink); |
2b97eabc RP |
2714 | return ret; |
2715 | } | |
105f1c28 | 2716 | |
efcc3c61 MB |
2717 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2718 | const struct snd_soc_dapm_route *route) | |
2719 | { | |
6dd98b0a | 2720 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2721 | struct snd_soc_dapm_path *path, *p; |
2722 | const char *sink; | |
2723 | const char *source; | |
2724 | char prefixed_sink[80]; | |
2725 | char prefixed_source[80]; | |
94f99c87 | 2726 | const char *prefix; |
efcc3c61 MB |
2727 | |
2728 | if (route->control) { | |
2729 | dev_err(dapm->dev, | |
30a6a1a4 | 2730 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2731 | return -EINVAL; |
2732 | } | |
2733 | ||
94f99c87 LPC |
2734 | prefix = soc_dapm_prefix(dapm); |
2735 | if (prefix) { | |
efcc3c61 | 2736 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2737 | prefix, route->sink); |
efcc3c61 MB |
2738 | sink = prefixed_sink; |
2739 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2740 | prefix, route->source); |
efcc3c61 MB |
2741 | source = prefixed_source; |
2742 | } else { | |
2743 | sink = route->sink; | |
2744 | source = route->source; | |
2745 | } | |
2746 | ||
2747 | path = NULL; | |
2748 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2749 | if (strcmp(p->source->name, source) != 0) | |
2750 | continue; | |
2751 | if (strcmp(p->sink->name, sink) != 0) | |
2752 | continue; | |
2753 | path = p; | |
2754 | break; | |
2755 | } | |
2756 | ||
2757 | if (path) { | |
6dd98b0a LPC |
2758 | wsource = path->source; |
2759 | wsink = path->sink; | |
2760 | ||
2761 | dapm_mark_dirty(wsource, "Route removed"); | |
2762 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2763 | if (path->connect) |
2764 | dapm_path_invalidate(path); | |
efcc3c61 | 2765 | |
8872293f | 2766 | dapm_free_path(path); |
6dd98b0a LPC |
2767 | |
2768 | /* Update any path related flags */ | |
2769 | dapm_update_widget_flags(wsource); | |
2770 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2771 | } else { |
30a6a1a4 | 2772 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2773 | source, sink); |
2774 | } | |
2775 | ||
2776 | return 0; | |
2777 | } | |
2778 | ||
105f1c28 MB |
2779 | /** |
2780 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2781 | * @dapm: DAPM context |
105f1c28 MB |
2782 | * @route: audio routes |
2783 | * @num: number of routes | |
2784 | * | |
2785 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2786 | * the widget receiving the audio signal, whilst the source is the sender | |
2787 | * of the audio signal. | |
2788 | * | |
2789 | * Returns 0 for success else error. On error all resources can be freed | |
2790 | * with a call to snd_soc_card_free(). | |
2791 | */ | |
ce6120cc | 2792 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2793 | const struct snd_soc_dapm_route *route, int num) |
2794 | { | |
62d4a4b9 | 2795 | int i, r, ret = 0; |
105f1c28 | 2796 | |
a73fb2df | 2797 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2798 | for (i = 0; i < num; i++) { |
a4e9154c | 2799 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2800 | if (r < 0) { |
30a6a1a4 LG |
2801 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2802 | route->source, | |
2803 | route->control ? route->control : "direct", | |
2804 | route->sink); | |
62d4a4b9 | 2805 | ret = r; |
105f1c28 MB |
2806 | } |
2807 | route++; | |
2808 | } | |
a73fb2df | 2809 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2810 | |
60884c27 | 2811 | return ret; |
105f1c28 MB |
2812 | } |
2813 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2814 | ||
efcc3c61 MB |
2815 | /** |
2816 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2817 | * @dapm: DAPM context | |
2818 | * @route: audio routes | |
2819 | * @num: number of routes | |
2820 | * | |
2821 | * Removes routes from the DAPM context. | |
2822 | */ | |
2823 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2824 | const struct snd_soc_dapm_route *route, int num) | |
2825 | { | |
2826 | int i, ret = 0; | |
2827 | ||
2828 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2829 | for (i = 0; i < num; i++) { | |
2830 | snd_soc_dapm_del_route(dapm, route); | |
2831 | route++; | |
2832 | } | |
2833 | mutex_unlock(&dapm->card->dapm_mutex); | |
2834 | ||
2835 | return ret; | |
2836 | } | |
2837 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2838 | ||
bf3a9e13 MB |
2839 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2840 | const struct snd_soc_dapm_route *route) | |
2841 | { | |
2842 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2843 | route->source, | |
2844 | true); | |
2845 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2846 | route->sink, | |
2847 | true); | |
2848 | struct snd_soc_dapm_path *path; | |
2849 | int count = 0; | |
2850 | ||
2851 | if (!source) { | |
30a6a1a4 | 2852 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2853 | route->source); |
2854 | return -ENODEV; | |
2855 | } | |
2856 | ||
2857 | if (!sink) { | |
30a6a1a4 | 2858 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2859 | route->sink); |
2860 | return -ENODEV; | |
2861 | } | |
2862 | ||
2863 | if (route->control || route->connected) | |
30a6a1a4 | 2864 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2865 | route->source, route->sink); |
2866 | ||
2867 | list_for_each_entry(path, &source->sinks, list_source) { | |
2868 | if (path->sink == sink) { | |
2869 | path->weak = 1; | |
2870 | count++; | |
2871 | } | |
2872 | } | |
2873 | ||
2874 | if (count == 0) | |
30a6a1a4 | 2875 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2876 | route->source, route->sink); |
2877 | if (count > 1) | |
30a6a1a4 | 2878 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2879 | count, route->source, route->sink); |
2880 | ||
2881 | return 0; | |
2882 | } | |
2883 | ||
2884 | /** | |
2885 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2886 | * @dapm: DAPM context | |
2887 | * @route: audio routes | |
2888 | * @num: number of routes | |
2889 | * | |
2890 | * Mark existing routes matching those specified in the passed array | |
2891 | * as being weak, meaning that they are ignored for the purpose of | |
2892 | * power decisions. The main intended use case is for sidetone paths | |
2893 | * which couple audio between other independent paths if they are both | |
2894 | * active in order to make the combination work better at the user | |
2895 | * level but which aren't intended to be "used". | |
2896 | * | |
2897 | * Note that CODEC drivers should not use this as sidetone type paths | |
2898 | * can frequently also be used as bypass paths. | |
2899 | */ | |
2900 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2901 | const struct snd_soc_dapm_route *route, int num) | |
2902 | { | |
2903 | int i, err; | |
2904 | int ret = 0; | |
2905 | ||
a73fb2df | 2906 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2907 | for (i = 0; i < num; i++) { |
2908 | err = snd_soc_dapm_weak_route(dapm, route); | |
2909 | if (err) | |
2910 | ret = err; | |
2911 | route++; | |
2912 | } | |
a73fb2df | 2913 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2914 | |
2915 | return ret; | |
2916 | } | |
2917 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2918 | ||
2b97eabc RP |
2919 | /** |
2920 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2921 | * @dapm: DAPM context |
2b97eabc RP |
2922 | * |
2923 | * Checks the codec for any new dapm widgets and creates them if found. | |
2924 | * | |
2925 | * Returns 0 for success. | |
2926 | */ | |
824ef826 | 2927 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2928 | { |
2929 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2930 | unsigned int val; |
2b97eabc | 2931 | |
95dd5cd6 | 2932 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2933 | |
95dd5cd6 | 2934 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2935 | { |
2936 | if (w->new) | |
2937 | continue; | |
2938 | ||
fad59888 SW |
2939 | if (w->num_kcontrols) { |
2940 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2941 | sizeof(struct snd_kcontrol *), | |
2942 | GFP_KERNEL); | |
a73fb2df | 2943 | if (!w->kcontrols) { |
95dd5cd6 | 2944 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2945 | return -ENOMEM; |
a73fb2df | 2946 | } |
fad59888 SW |
2947 | } |
2948 | ||
2b97eabc RP |
2949 | switch(w->id) { |
2950 | case snd_soc_dapm_switch: | |
2951 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2952 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2953 | dapm_new_mixer(w); |
2b97eabc RP |
2954 | break; |
2955 | case snd_soc_dapm_mux: | |
d714f97c | 2956 | case snd_soc_dapm_demux: |
4b80b8c2 | 2957 | dapm_new_mux(w); |
2b97eabc | 2958 | break; |
2b97eabc | 2959 | case snd_soc_dapm_pga: |
d88429a6 | 2960 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2961 | dapm_new_pga(w); |
2b97eabc | 2962 | break; |
c6615082 NO |
2963 | case snd_soc_dapm_dai_link: |
2964 | dapm_new_dai_link(w); | |
2965 | break; | |
7ca3a18b | 2966 | default: |
2b97eabc RP |
2967 | break; |
2968 | } | |
b66a70d5 MB |
2969 | |
2970 | /* Read the initial power state from the device */ | |
2971 | if (w->reg >= 0) { | |
ce0fc93a | 2972 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2973 | val = val >> w->shift; |
de9ba98b LPC |
2974 | val &= w->mask; |
2975 | if (val == w->on_val) | |
b66a70d5 MB |
2976 | w->power = 1; |
2977 | } | |
2978 | ||
2b97eabc | 2979 | w->new = 1; |
d5d1e0be | 2980 | |
7508b12a | 2981 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2982 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2983 | } |
2984 | ||
95dd5cd6 LPC |
2985 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2986 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2987 | return 0; |
2988 | } | |
2989 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2990 | ||
2991 | /** | |
2992 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2993 | * @kcontrol: mixer control | |
ac11a2b3 | 2994 | * @ucontrol: control element information |
2b97eabc RP |
2995 | * |
2996 | * Callback to get the value of a dapm mixer control. | |
2997 | * | |
2998 | * Returns 0 for success. | |
2999 | */ | |
3000 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3001 | struct snd_ctl_elem_value *ucontrol) | |
3002 | { | |
ce0fc93a LPC |
3003 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3004 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3005 | struct soc_mixer_control *mc = |
3006 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3007 | int reg = mc->reg; |
815ecf8d | 3008 | unsigned int shift = mc->shift; |
4eaa9819 | 3009 | int max = mc->max; |
815ecf8d | 3010 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3011 | unsigned int invert = mc->invert; |
57295073 | 3012 | unsigned int val; |
ce0fc93a | 3013 | int ret = 0; |
da602ab8 BT |
3014 | |
3015 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 3016 | dev_warn(dapm->dev, |
30a6a1a4 | 3017 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 3018 | kcontrol->id.name); |
2b97eabc | 3019 | |
57295073 | 3020 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
3021 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
3022 | ret = soc_dapm_read(dapm, reg, &val); | |
3023 | val = (val >> shift) & mask; | |
3024 | } else { | |
57295073 | 3025 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 3026 | } |
57295073 LPC |
3027 | mutex_unlock(&card->dapm_mutex); |
3028 | ||
da602ab8 | 3029 | if (invert) |
57295073 LPC |
3030 | ucontrol->value.integer.value[0] = max - val; |
3031 | else | |
3032 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3033 | |
ce0fc93a | 3034 | return ret; |
2b97eabc RP |
3035 | } |
3036 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3037 | ||
3038 | /** | |
3039 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3040 | * @kcontrol: mixer control | |
ac11a2b3 | 3041 | * @ucontrol: control element information |
2b97eabc RP |
3042 | * |
3043 | * Callback to set the value of a dapm mixer control. | |
3044 | * | |
3045 | * Returns 0 for success. | |
3046 | */ | |
3047 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3048 | struct snd_ctl_elem_value *ucontrol) | |
3049 | { | |
ce0fc93a LPC |
3050 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3051 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3052 | struct soc_mixer_control *mc = |
3053 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3054 | int reg = mc->reg; |
815ecf8d | 3055 | unsigned int shift = mc->shift; |
4eaa9819 | 3056 | int max = mc->max; |
815ecf8d JS |
3057 | unsigned int mask = (1 << fls(max)) - 1; |
3058 | unsigned int invert = mc->invert; | |
e9cf7049 | 3059 | unsigned int val; |
18626c7e | 3060 | int connect, change, reg_change = 0; |
97404f2e | 3061 | struct snd_soc_dapm_update update; |
52765976 | 3062 | int ret = 0; |
2b97eabc | 3063 | |
da602ab8 | 3064 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3065 | dev_warn(dapm->dev, |
30a6a1a4 | 3066 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3067 | kcontrol->id.name); |
3068 | ||
2b97eabc | 3069 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3070 | connect = !!val; |
2b97eabc RP |
3071 | |
3072 | if (invert) | |
a7a4ac86 | 3073 | val = max - val; |
2b97eabc | 3074 | |
3cd04343 | 3075 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3076 | |
249ce138 | 3077 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3078 | |
18626c7e JN |
3079 | if (reg != SND_SOC_NOPM) { |
3080 | mask = mask << shift; | |
3081 | val = val << shift; | |
3082 | ||
ce0fc93a | 3083 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3084 | } |
3085 | ||
3086 | if (change || reg_change) { | |
3087 | if (reg_change) { | |
3088 | update.kcontrol = kcontrol; | |
3089 | update.reg = reg; | |
3090 | update.mask = mask; | |
3091 | update.val = val; | |
3092 | card->update = &update; | |
249ce138 | 3093 | } |
18626c7e | 3094 | change |= reg_change; |
97404f2e | 3095 | |
52765976 | 3096 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3097 | |
564c6504 | 3098 | card->update = NULL; |
283375ce MB |
3099 | } |
3100 | ||
a73fb2df | 3101 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3102 | |
3103 | if (ret > 0) | |
3104 | soc_dpcm_runtime_update(card); | |
3105 | ||
56a67834 | 3106 | return change; |
2b97eabc RP |
3107 | } |
3108 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3109 | ||
3110 | /** | |
3111 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3112 | * @kcontrol: mixer control | |
ac11a2b3 | 3113 | * @ucontrol: control element information |
2b97eabc RP |
3114 | * |
3115 | * Callback to get the value of a dapm enumerated double mixer control. | |
3116 | * | |
3117 | * Returns 0 for success. | |
3118 | */ | |
3119 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3120 | struct snd_ctl_elem_value *ucontrol) | |
3121 | { | |
ce0fc93a | 3122 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3123 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3124 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3125 | unsigned int reg_val, val; |
52765976 | 3126 | |
561ed680 CK |
3127 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3128 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3129 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3130 | if (ret) { |
3131 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3132 | return ret; |
964a0b89 | 3133 | } |
69128316 | 3134 | } else { |
236aaa68 | 3135 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3136 | } |
561ed680 | 3137 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3138 | |
2e72f8e3 | 3139 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3140 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3141 | if (e->shift_l != e->shift_r) { |
3142 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3143 | val = snd_soc_enum_val_to_item(e, val); |
3144 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3145 | } |
3146 | ||
69128316 | 3147 | return 0; |
2e72f8e3 | 3148 | } |
2b97eabc | 3149 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3150 | |
3151 | /** | |
2b97eabc | 3152 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3153 | * @kcontrol: mixer control |
3154 | * @ucontrol: control element information | |
3155 | * | |
2b97eabc | 3156 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3157 | * |
3158 | * Returns 0 for success. | |
3159 | */ | |
2b97eabc | 3160 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3161 | struct snd_ctl_elem_value *ucontrol) |
3162 | { | |
ce0fc93a LPC |
3163 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3164 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3165 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3166 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3167 | unsigned int val, change, reg_change = 0; |
46f5822f | 3168 | unsigned int mask; |
97404f2e | 3169 | struct snd_soc_dapm_update update; |
52765976 | 3170 | int ret = 0; |
2e72f8e3 | 3171 | |
3727b496 | 3172 | if (item[0] >= e->items) |
2e72f8e3 | 3173 | return -EINVAL; |
3727b496 LPC |
3174 | |
3175 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3176 | mask = e->mask << e->shift_l; |
3177 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3178 | if (item[1] > e->items) |
2e72f8e3 | 3179 | return -EINVAL; |
3727b496 | 3180 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
3181 | mask |= e->mask << e->shift_r; |
3182 | } | |
3183 | ||
3cd04343 | 3184 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3185 | |
561ed680 CK |
3186 | change = dapm_kcontrol_set_value(kcontrol, val); |
3187 | ||
236aaa68 | 3188 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3189 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3190 | |
561ed680 CK |
3191 | if (change || reg_change) { |
3192 | if (reg_change) { | |
236aaa68 LPC |
3193 | update.kcontrol = kcontrol; |
3194 | update.reg = e->reg; | |
3195 | update.mask = mask; | |
3196 | update.val = val; | |
3197 | card->update = &update; | |
3198 | } | |
561ed680 | 3199 | change |= reg_change; |
1642e3d4 | 3200 | |
3727b496 | 3201 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3202 | |
564c6504 | 3203 | card->update = NULL; |
fafd2176 | 3204 | } |
2e72f8e3 | 3205 | |
a73fb2df | 3206 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3207 | |
3208 | if (ret > 0) | |
3209 | soc_dpcm_runtime_update(card); | |
3210 | ||
97404f2e | 3211 | return change; |
2e72f8e3 | 3212 | } |
2b97eabc | 3213 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3214 | |
8b37dbd2 MB |
3215 | /** |
3216 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3217 | * | |
3218 | * @kcontrol: mixer control | |
3219 | * @uinfo: control element information | |
3220 | * | |
3221 | * Callback to provide information about a pin switch control. | |
3222 | */ | |
3223 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3224 | struct snd_ctl_elem_info *uinfo) | |
3225 | { | |
3226 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3227 | uinfo->count = 1; | |
3228 | uinfo->value.integer.min = 0; | |
3229 | uinfo->value.integer.max = 1; | |
3230 | ||
3231 | return 0; | |
3232 | } | |
3233 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3234 | ||
3235 | /** | |
3236 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3237 | * | |
3238 | * @kcontrol: mixer control | |
3239 | * @ucontrol: Value | |
3240 | */ | |
3241 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3242 | struct snd_ctl_elem_value *ucontrol) | |
3243 | { | |
48a8c394 | 3244 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3245 | const char *pin = (const char *)kcontrol->private_value; |
3246 | ||
3cd04343 | 3247 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3248 | |
3249 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3250 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3251 | |
a73fb2df | 3252 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3253 | |
3254 | return 0; | |
3255 | } | |
3256 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3257 | ||
3258 | /** | |
3259 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3260 | * | |
3261 | * @kcontrol: mixer control | |
3262 | * @ucontrol: Value | |
3263 | */ | |
3264 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3265 | struct snd_ctl_elem_value *ucontrol) | |
3266 | { | |
48a8c394 | 3267 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3268 | const char *pin = (const char *)kcontrol->private_value; |
3269 | ||
8b37dbd2 | 3270 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3271 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3272 | else |
48a8c394 | 3273 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3274 | |
a73fb2df | 3275 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3276 | return 0; |
3277 | } | |
3278 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3279 | ||
cc76e7de | 3280 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3281 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3282 | const struct snd_soc_dapm_widget *widget) |
3283 | { | |
3284 | struct snd_soc_dapm_widget *w; | |
3285 | ||
3286 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3287 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3288 | if (!w) | |
3289 | dev_err(dapm->dev, | |
3290 | "ASoC: Failed to create DAPM control %s\n", | |
3291 | widget->name); | |
3292 | ||
3293 | mutex_unlock(&dapm->card->dapm_mutex); | |
3294 | return w; | |
3295 | } | |
3296 | ||
3297 | struct snd_soc_dapm_widget * | |
3298 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3299 | const struct snd_soc_dapm_widget *widget) |
2b97eabc RP |
3300 | { |
3301 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3302 | const char *prefix; |
62ea874a | 3303 | int ret; |
2b97eabc RP |
3304 | |
3305 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3306 | return NULL; |
2b97eabc | 3307 | |
62ea874a MB |
3308 | switch (w->id) { |
3309 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3310 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3311 | if (IS_ERR(w->regulator)) { | |
3312 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3313 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3314 | w->name, ret); |
5ba06fc9 | 3315 | return NULL; |
62ea874a | 3316 | } |
8784c77a | 3317 | |
de9ba98b | 3318 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3319 | ret = regulator_allow_bypass(w->regulator, true); |
3320 | if (ret != 0) | |
3321 | dev_warn(w->dapm->dev, | |
30686c35 | 3322 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3323 | w->name, ret); |
3324 | } | |
62ea874a | 3325 | break; |
d7e7eb91 | 3326 | case snd_soc_dapm_clock_supply: |
165961ef | 3327 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3328 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3329 | if (IS_ERR(w->clk)) { |
3330 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3331 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3332 | w->name, ret); |
3333 | return NULL; | |
3334 | } | |
ec02995a MB |
3335 | #else |
3336 | return NULL; | |
3337 | #endif | |
d7e7eb91 | 3338 | break; |
62ea874a MB |
3339 | default: |
3340 | break; | |
3341 | } | |
2b97eabc | 3342 | |
94f99c87 | 3343 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3344 | if (prefix) |
94f99c87 | 3345 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3346 | else |
2b581074 | 3347 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); |
ead9b919 JN |
3348 | if (w->name == NULL) { |
3349 | kfree(w); | |
5ba06fc9 | 3350 | return NULL; |
ead9b919 | 3351 | } |
ead9b919 | 3352 | |
7ca3a18b | 3353 | switch (w->id) { |
6dd98b0a | 3354 | case snd_soc_dapm_mic: |
6dd98b0a | 3355 | w->is_source = 1; |
7ca3a18b MB |
3356 | w->power_check = dapm_generic_check_power; |
3357 | break; | |
86d75003 LPC |
3358 | case snd_soc_dapm_input: |
3359 | if (!dapm->card->fully_routed) | |
3360 | w->is_source = 1; | |
3361 | w->power_check = dapm_generic_check_power; | |
3362 | break; | |
6dd98b0a LPC |
3363 | case snd_soc_dapm_spk: |
3364 | case snd_soc_dapm_hp: | |
6dd98b0a | 3365 | w->is_sink = 1; |
7ca3a18b MB |
3366 | w->power_check = dapm_generic_check_power; |
3367 | break; | |
86d75003 LPC |
3368 | case snd_soc_dapm_output: |
3369 | if (!dapm->card->fully_routed) | |
3370 | w->is_sink = 1; | |
3371 | w->power_check = dapm_generic_check_power; | |
3372 | break; | |
6dd98b0a LPC |
3373 | case snd_soc_dapm_vmid: |
3374 | case snd_soc_dapm_siggen: | |
3375 | w->is_source = 1; | |
3376 | w->power_check = dapm_always_on_check_power; | |
3377 | break; | |
3378 | case snd_soc_dapm_mux: | |
d714f97c | 3379 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3380 | case snd_soc_dapm_switch: |
3381 | case snd_soc_dapm_mixer: | |
3382 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3383 | case snd_soc_dapm_adc: |
3384 | case snd_soc_dapm_aif_out: | |
3385 | case snd_soc_dapm_dac: | |
3386 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3387 | case snd_soc_dapm_pga: |
3388 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3389 | case snd_soc_dapm_micbias: |
7ca3a18b | 3390 | case snd_soc_dapm_line: |
c74184ed | 3391 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3392 | case snd_soc_dapm_dai_out: |
3393 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3394 | w->power_check = dapm_generic_check_power; |
3395 | break; | |
3396 | case snd_soc_dapm_supply: | |
62ea874a | 3397 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3398 | case snd_soc_dapm_clock_supply: |
57295073 | 3399 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3400 | w->is_supply = 1; |
7ca3a18b MB |
3401 | w->power_check = dapm_supply_check_power; |
3402 | break; | |
3403 | default: | |
3404 | w->power_check = dapm_always_on_check_power; | |
3405 | break; | |
3406 | } | |
3407 | ||
ce6120cc | 3408 | w->dapm = dapm; |
2b97eabc RP |
3409 | INIT_LIST_HEAD(&w->sources); |
3410 | INIT_LIST_HEAD(&w->sinks); | |
3411 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3412 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3413 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3414 | |
92a99ea4 LPC |
3415 | w->inputs = -1; |
3416 | w->outputs = -1; | |
3417 | ||
2b97eabc RP |
3418 | /* machine layer set ups unconnected pins and insertions */ |
3419 | w->connected = 1; | |
5ba06fc9 | 3420 | return w; |
2b97eabc | 3421 | } |
2b97eabc | 3422 | |
4ba1327a MB |
3423 | /** |
3424 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3425 | * @dapm: DAPM context |
4ba1327a MB |
3426 | * @widget: widget array |
3427 | * @num: number of widgets | |
3428 | * | |
3429 | * Creates new DAPM controls based upon the templates. | |
3430 | * | |
3431 | * Returns 0 for success else error. | |
3432 | */ | |
ce6120cc | 3433 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3434 | const struct snd_soc_dapm_widget *widget, |
3435 | int num) | |
3436 | { | |
5ba06fc9 MB |
3437 | struct snd_soc_dapm_widget *w; |
3438 | int i; | |
60884c27 | 3439 | int ret = 0; |
4ba1327a | 3440 | |
a73fb2df | 3441 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3442 | for (i = 0; i < num; i++) { |
02aa78ab | 3443 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
5ba06fc9 | 3444 | if (!w) { |
f7d41ae8 | 3445 | dev_err(dapm->dev, |
5ba06fc9 MB |
3446 | "ASoC: Failed to create DAPM control %s\n", |
3447 | widget->name); | |
60884c27 DC |
3448 | ret = -ENOMEM; |
3449 | break; | |
b8b33cb5 | 3450 | } |
4ba1327a MB |
3451 | widget++; |
3452 | } | |
a73fb2df | 3453 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3454 | return ret; |
4ba1327a MB |
3455 | } |
3456 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3457 | ||
c74184ed MB |
3458 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3459 | struct snd_kcontrol *kcontrol, int event) | |
3460 | { | |
3461 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3462 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3463 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3464 | struct snd_pcm_substream substream; |
9747cec2 | 3465 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3466 | u64 fmt; |
3467 | int ret; | |
3468 | ||
bf4edea8 TI |
3469 | if (WARN_ON(!config) || |
3470 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3471 | return -EINVAL; | |
c74184ed MB |
3472 | |
3473 | /* We only support a single source and sink, pick the first */ | |
3474 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3475 | list_sink); | |
3476 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3477 | list_source); | |
3478 | ||
bf4edea8 TI |
3479 | if (WARN_ON(!source_p || !sink_p) || |
3480 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3481 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3482 | return -EINVAL; | |
c74184ed MB |
3483 | |
3484 | source = source_p->source->priv; | |
3485 | sink = sink_p->sink->priv; | |
3486 | ||
3487 | /* Be a little careful as we don't want to overflow the mask array */ | |
3488 | if (config->formats) { | |
3489 | fmt = ffs(config->formats) - 1; | |
3490 | } else { | |
30a6a1a4 | 3491 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3492 | config->formats); |
3493 | fmt = 0; | |
3494 | } | |
3495 | ||
3496 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3497 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3498 | if (!params) { | |
3499 | ret = -ENOMEM; | |
3500 | goto out; | |
3501 | } | |
3502 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3503 | |
9747cec2 | 3504 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3505 | config->rate_min; |
9747cec2 | 3506 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3507 | config->rate_max; |
3508 | ||
9747cec2 | 3509 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3510 | = config->channels_min; |
9747cec2 | 3511 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3512 | = config->channels_max; |
3513 | ||
3514 | memset(&substream, 0, sizeof(substream)); | |
3515 | ||
3516 | switch (event) { | |
3517 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3518 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3519 | ret = soc_dai_hw_params(&substream, params, source); | |
3520 | if (ret < 0) | |
3521 | goto out; | |
c74184ed | 3522 | |
93e6958a BC |
3523 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3524 | ret = soc_dai_hw_params(&substream, params, sink); | |
3525 | if (ret < 0) | |
3526 | goto out; | |
c74184ed MB |
3527 | break; |
3528 | ||
3529 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3530 | ret = snd_soc_dai_digital_mute(sink, 0, |
3531 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3532 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3533 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3534 | ret = 0; |
c74184ed MB |
3535 | break; |
3536 | ||
3537 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3538 | ret = snd_soc_dai_digital_mute(sink, 1, |
3539 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3540 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3541 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3542 | ret = 0; |
c74184ed MB |
3543 | break; |
3544 | ||
3545 | default: | |
a6ed0608 | 3546 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3547 | return -EINVAL; |
3548 | } | |
3549 | ||
9747cec2 MB |
3550 | out: |
3551 | kfree(params); | |
3552 | return ret; | |
c74184ed MB |
3553 | } |
3554 | ||
c6615082 NO |
3555 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3556 | struct snd_ctl_elem_value *ucontrol) | |
3557 | { | |
3558 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3559 | ||
3560 | ucontrol->value.integer.value[0] = w->params_select; | |
3561 | ||
3562 | return 0; | |
3563 | } | |
3564 | ||
3565 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3566 | struct snd_ctl_elem_value *ucontrol) | |
3567 | { | |
3568 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3569 | ||
3570 | /* Can't change the config when widget is already powered */ | |
3571 | if (w->power) | |
3572 | return -EBUSY; | |
3573 | ||
3574 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3575 | return 0; | |
3576 | ||
3577 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3578 | return -EINVAL; | |
3579 | ||
3580 | w->params_select = ucontrol->value.integer.value[0]; | |
3581 | ||
3582 | return 0; | |
3583 | } | |
3584 | ||
c74184ed MB |
3585 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3586 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3587 | unsigned int num_params, |
c74184ed MB |
3588 | struct snd_soc_dapm_widget *source, |
3589 | struct snd_soc_dapm_widget *sink) | |
3590 | { | |
c74184ed MB |
3591 | struct snd_soc_dapm_widget template; |
3592 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3593 | char *link_name; |
c6615082 NO |
3594 | int ret, count; |
3595 | unsigned long private_value; | |
3596 | const char **w_param_text; | |
3597 | struct soc_enum w_param_enum[] = { | |
3598 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3599 | }; | |
3600 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3601 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3602 | snd_soc_dapm_dai_link_get, | |
3603 | snd_soc_dapm_dai_link_put), | |
3604 | }; | |
3605 | const struct snd_soc_pcm_stream *config = params; | |
3606 | ||
3607 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3608 | sizeof(char *), GFP_KERNEL); | |
3609 | if (!w_param_text) | |
c74184ed | 3610 | return -ENOMEM; |
c74184ed | 3611 | |
46172b6c CK |
3612 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3613 | source->name, sink->name); | |
c6615082 NO |
3614 | if (!link_name) { |
3615 | ret = -ENOMEM; | |
3616 | goto outfree_w_param; | |
3617 | } | |
c74184ed | 3618 | |
c6615082 NO |
3619 | for (count = 0 ; count < num_params; count++) { |
3620 | if (!config->stream_name) { | |
3621 | dev_warn(card->dapm.dev, | |
3622 | "ASoC: anonymous config %d for dai link %s\n", | |
3623 | count, link_name); | |
c6615082 | 3624 | w_param_text[count] = |
46172b6c CK |
3625 | devm_kasprintf(card->dev, GFP_KERNEL, |
3626 | "Anonymous Configuration %d", | |
3627 | count); | |
c6615082 NO |
3628 | if (!w_param_text[count]) { |
3629 | ret = -ENOMEM; | |
3630 | goto outfree_link_name; | |
3631 | } | |
c6615082 NO |
3632 | } else { |
3633 | w_param_text[count] = devm_kmemdup(card->dev, | |
3634 | config->stream_name, | |
3635 | strlen(config->stream_name) + 1, | |
3636 | GFP_KERNEL); | |
3637 | if (!w_param_text[count]) { | |
3638 | ret = -ENOMEM; | |
3639 | goto outfree_link_name; | |
3640 | } | |
3641 | } | |
3642 | config++; | |
3643 | } | |
3644 | w_param_enum[0].items = num_params; | |
3645 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3646 | |
3647 | memset(&template, 0, sizeof(template)); | |
3648 | template.reg = SND_SOC_NOPM; | |
3649 | template.id = snd_soc_dapm_dai_link; | |
3650 | template.name = link_name; | |
3651 | template.event = snd_soc_dai_link_event; | |
3652 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3653 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3654 | template.num_kcontrols = 1; |
3655 | /* duplicate w_param_enum on heap so that memory persists */ | |
3656 | private_value = | |
3657 | (unsigned long) devm_kmemdup(card->dev, | |
3658 | (void *)(kcontrol_dai_link[0].private_value), | |
3659 | sizeof(struct soc_enum), GFP_KERNEL); | |
3660 | if (!private_value) { | |
3661 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3662 | link_name); | |
3663 | ret = -ENOMEM; | |
3664 | goto outfree_link_name; | |
3665 | } | |
3666 | kcontrol_dai_link[0].private_value = private_value; | |
3667 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3668 | template.kcontrol_news = | |
3669 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3670 | sizeof(struct snd_kcontrol_new), | |
3671 | GFP_KERNEL); | |
3672 | if (!template.kcontrol_news) { | |
3673 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3674 | link_name); | |
3675 | ret = -ENOMEM; | |
3676 | goto outfree_private_value; | |
3677 | } | |
c74184ed | 3678 | |
30a6a1a4 | 3679 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3680 | |
02aa78ab | 3681 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
c74184ed | 3682 | if (!w) { |
30a6a1a4 | 3683 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3684 | link_name); |
c6615082 NO |
3685 | ret = -ENOMEM; |
3686 | goto outfree_kcontrol_news; | |
c74184ed MB |
3687 | } |
3688 | ||
3689 | w->params = params; | |
c6615082 | 3690 | w->num_params = num_params; |
c74184ed | 3691 | |
fe83897f LPC |
3692 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3693 | if (ret) | |
c6615082 | 3694 | goto outfree_w; |
fe83897f | 3695 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3696 | |
3697 | outfree_w: | |
3698 | devm_kfree(card->dev, w); | |
3699 | outfree_kcontrol_news: | |
3700 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3701 | outfree_private_value: | |
3702 | devm_kfree(card->dev, (void *)private_value); | |
3703 | outfree_link_name: | |
3704 | devm_kfree(card->dev, link_name); | |
3705 | outfree_w_param: | |
3706 | for (count = 0 ; count < num_params; count++) | |
3707 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3708 | devm_kfree(card->dev, w_param_text); | |
3709 | ||
3710 | return ret; | |
c74184ed MB |
3711 | } |
3712 | ||
888df395 MB |
3713 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3714 | struct snd_soc_dai *dai) | |
2b97eabc | 3715 | { |
888df395 | 3716 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3717 | struct snd_soc_dapm_widget *w; |
3718 | ||
888df395 MB |
3719 | WARN_ON(dapm->dev != dai->dev); |
3720 | ||
3721 | memset(&template, 0, sizeof(template)); | |
3722 | template.reg = SND_SOC_NOPM; | |
3723 | ||
3724 | if (dai->driver->playback.stream_name) { | |
4616274d | 3725 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3726 | template.name = dai->driver->playback.stream_name; |
3727 | template.sname = dai->driver->playback.stream_name; | |
3728 | ||
30a6a1a4 | 3729 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3730 | template.name); |
3731 | ||
02aa78ab | 3732 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3733 | if (!w) { |
30a6a1a4 | 3734 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3735 | dai->driver->playback.stream_name); |
298402a3 | 3736 | return -ENOMEM; |
888df395 MB |
3737 | } |
3738 | ||
3739 | w->priv = dai; | |
3740 | dai->playback_widget = w; | |
3741 | } | |
3742 | ||
3743 | if (dai->driver->capture.stream_name) { | |
4616274d | 3744 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3745 | template.name = dai->driver->capture.stream_name; |
3746 | template.sname = dai->driver->capture.stream_name; | |
3747 | ||
30a6a1a4 | 3748 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3749 | template.name); |
3750 | ||
02aa78ab | 3751 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3752 | if (!w) { |
30a6a1a4 | 3753 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3754 | dai->driver->capture.stream_name); |
298402a3 | 3755 | return -ENOMEM; |
888df395 MB |
3756 | } |
3757 | ||
3758 | w->priv = dai; | |
3759 | dai->capture_widget = w; | |
3760 | } | |
3761 | ||
3762 | return 0; | |
3763 | } | |
3764 | ||
3765 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3766 | { | |
3767 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3768 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3769 | struct snd_soc_dai *dai; |
888df395 MB |
3770 | |
3771 | /* For each DAI widget... */ | |
3772 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3773 | switch (dai_w->id) { |
3774 | case snd_soc_dapm_dai_in: | |
3775 | case snd_soc_dapm_dai_out: | |
3776 | break; | |
3777 | default: | |
2b97eabc | 3778 | continue; |
4616274d | 3779 | } |
888df395 MB |
3780 | |
3781 | dai = dai_w->priv; | |
3782 | ||
3783 | /* ...find all widgets with the same stream and link them */ | |
3784 | list_for_each_entry(w, &card->widgets, list) { | |
3785 | if (w->dapm != dai_w->dapm) | |
3786 | continue; | |
3787 | ||
4616274d MB |
3788 | switch (w->id) { |
3789 | case snd_soc_dapm_dai_in: | |
3790 | case snd_soc_dapm_dai_out: | |
888df395 | 3791 | continue; |
4616274d MB |
3792 | default: |
3793 | break; | |
3794 | } | |
888df395 | 3795 | |
a798c24a | 3796 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
3797 | continue; |
3798 | ||
0f9bd7b1 LPC |
3799 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3800 | src = dai_w; | |
3801 | sink = w; | |
3802 | } else { | |
3803 | src = w; | |
3804 | sink = dai_w; | |
2b97eabc | 3805 | } |
0f9bd7b1 LPC |
3806 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3807 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3808 | } |
3809 | } | |
2b97eabc | 3810 | |
888df395 MB |
3811 | return 0; |
3812 | } | |
64a648c2 | 3813 | |
44ba2641 BC |
3814 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3815 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3816 | { |
44ba2641 | 3817 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3818 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3819 | int i; |
3820 | ||
44ba2641 BC |
3821 | for (i = 0; i < rtd->num_codecs; i++) { |
3822 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3823 | |
3824 | /* there is no point in connecting BE DAI links with dummies */ | |
3825 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3826 | snd_soc_dai_is_dummy(cpu_dai)) | |
3827 | continue; | |
3828 | ||
3829 | /* connect BE DAI playback if widgets are valid */ | |
3830 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3831 | source = cpu_dai->playback_widget; |
3832 | sink = codec_dai->playback_widget; | |
b893ea5f | 3833 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3834 | cpu_dai->component->name, source->name, |
3835 | codec_dai->component->name, sink->name); | |
b893ea5f | 3836 | |
9887c20b LPC |
3837 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3838 | NULL, NULL); | |
b893ea5f LG |
3839 | } |
3840 | ||
3841 | /* connect BE DAI capture if widgets are valid */ | |
3842 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3843 | source = codec_dai->capture_widget; |
3844 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3845 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3846 | codec_dai->component->name, source->name, |
3847 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3848 | |
9887c20b LPC |
3849 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3850 | NULL, NULL); | |
b893ea5f | 3851 | } |
b893ea5f LG |
3852 | } |
3853 | } | |
3854 | ||
c471fdd1 | 3855 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3856 | int event) |
2b97eabc | 3857 | { |
c471fdd1 | 3858 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3859 | |
c471fdd1 LPC |
3860 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3861 | w = dai->playback_widget; | |
3862 | else | |
3863 | w = dai->capture_widget; | |
fe360685 | 3864 | |
c471fdd1 LPC |
3865 | if (w) { |
3866 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3867 | |
3868 | switch (event) { | |
3869 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3870 | w->active = 1; |
d9b0951b LG |
3871 | break; |
3872 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3873 | w->active = 0; |
d9b0951b LG |
3874 | break; |
3875 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3876 | case SND_SOC_DAPM_STREAM_RESUME: | |
3877 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3878 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3879 | break; | |
3880 | } | |
6dd98b0a | 3881 | |
92a99ea4 | 3882 | if (w->id == snd_soc_dapm_dai_in) { |
6dd98b0a | 3883 | w->is_source = w->active; |
92a99ea4 LPC |
3884 | dapm_widget_invalidate_input_paths(w); |
3885 | } else { | |
6dd98b0a | 3886 | w->is_sink = w->active; |
92a99ea4 LPC |
3887 | dapm_widget_invalidate_output_paths(w); |
3888 | } | |
d9b0951b | 3889 | } |
c471fdd1 | 3890 | } |
d9b0951b | 3891 | |
44ba2641 BC |
3892 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3893 | { | |
3894 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3895 | int i; | |
3896 | ||
3897 | /* for each BE DAI link... */ | |
3898 | for (i = 0; i < card->num_rtd; i++) { | |
3899 | rtd = &card->rtd[i]; | |
3900 | ||
3901 | /* | |
3902 | * dynamic FE links have no fixed DAI mapping. | |
3903 | * CODEC<->CODEC links have no direct connection. | |
3904 | */ | |
3905 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3906 | continue; | |
3907 | ||
3908 | dapm_connect_dai_link_widgets(card, rtd); | |
3909 | } | |
3910 | } | |
3911 | ||
c471fdd1 LPC |
3912 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3913 | int event) | |
3914 | { | |
44ba2641 BC |
3915 | int i; |
3916 | ||
c471fdd1 | 3917 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3918 | for (i = 0; i < rtd->num_codecs; i++) |
3919 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3920 | |
95dd5cd6 | 3921 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3922 | } |
3923 | ||
3924 | /** | |
3925 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3926 | * @rtd: PCM runtime data | |
3927 | * @stream: stream name | |
3928 | * @event: stream event | |
3929 | * | |
3930 | * Sends a stream event to the dapm core. The core then makes any | |
3931 | * necessary widget power changes. | |
3932 | * | |
3933 | * Returns 0 for success else error. | |
3934 | */ | |
d9b0951b LG |
3935 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3936 | int event) | |
ce6120cc | 3937 | { |
a73fb2df | 3938 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3939 | |
3cd04343 | 3940 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3941 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3942 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3943 | } |
2b97eabc | 3944 | |
11391100 CK |
3945 | /** |
3946 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3947 | * @dapm: DAPM context | |
3948 | * @pin: pin name | |
3949 | * | |
3950 | * Enables input/output pin and its parents or children widgets iff there is | |
3951 | * a valid audio route and active audio stream. | |
3952 | * | |
3953 | * Requires external locking. | |
3954 | * | |
3955 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3956 | * do any widget power switching. | |
3957 | */ | |
3958 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3959 | const char *pin) | |
3960 | { | |
3961 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3962 | } | |
3963 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3964 | ||
2b97eabc | 3965 | /** |
a5302181 | 3966 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3967 | * @dapm: DAPM context |
a5302181 | 3968 | * @pin: pin name |
2b97eabc | 3969 | * |
74b8f955 | 3970 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3971 | * a valid audio route and active audio stream. |
11391100 | 3972 | * |
a5302181 LG |
3973 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3974 | * do any widget power switching. | |
2b97eabc | 3975 | */ |
ce6120cc | 3976 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3977 | { |
11391100 CK |
3978 | int ret; |
3979 | ||
3980 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3981 | ||
3982 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3983 | ||
3984 | mutex_unlock(&dapm->card->dapm_mutex); | |
3985 | ||
3986 | return ret; | |
a5302181 LG |
3987 | } |
3988 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3989 | |
da34183e | 3990 | /** |
11391100 | 3991 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3992 | * @dapm: DAPM context |
da34183e MB |
3993 | * @pin: pin name |
3994 | * | |
3995 | * Enables input/output pin regardless of any other state. This is | |
3996 | * intended for use with microphone bias supplies used in microphone | |
3997 | * jack detection. | |
3998 | * | |
11391100 CK |
3999 | * Requires external locking. |
4000 | * | |
da34183e MB |
4001 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4002 | * do any widget power switching. | |
4003 | */ | |
11391100 CK |
4004 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4005 | const char *pin) | |
da34183e | 4006 | { |
91a5fca4 | 4007 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4008 | |
91a5fca4 | 4009 | if (!w) { |
30a6a1a4 | 4010 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4011 | return -EINVAL; |
0d86733c MB |
4012 | } |
4013 | ||
30a6a1a4 | 4014 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4015 | if (!w->connected) { |
4016 | /* | |
4017 | * w->force does not affect the number of input or output paths, | |
4018 | * so we only have to recheck if w->connected is changed | |
4019 | */ | |
4020 | dapm_widget_invalidate_input_paths(w); | |
4021 | dapm_widget_invalidate_output_paths(w); | |
4022 | w->connected = 1; | |
4023 | } | |
91a5fca4 | 4024 | w->force = 1; |
75c1f891 | 4025 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4026 | |
91a5fca4 | 4027 | return 0; |
da34183e | 4028 | } |
11391100 CK |
4029 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4030 | ||
4031 | /** | |
4032 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4033 | * @dapm: DAPM context | |
4034 | * @pin: pin name | |
4035 | * | |
4036 | * Enables input/output pin regardless of any other state. This is | |
4037 | * intended for use with microphone bias supplies used in microphone | |
4038 | * jack detection. | |
4039 | * | |
4040 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4041 | * do any widget power switching. | |
4042 | */ | |
4043 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4044 | const char *pin) | |
4045 | { | |
4046 | int ret; | |
4047 | ||
4048 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4049 | ||
4050 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4051 | ||
4052 | mutex_unlock(&dapm->card->dapm_mutex); | |
4053 | ||
4054 | return ret; | |
4055 | } | |
da34183e MB |
4056 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4057 | ||
11391100 CK |
4058 | /** |
4059 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4060 | * @dapm: DAPM context | |
4061 | * @pin: pin name | |
4062 | * | |
4063 | * Disables input/output pin and its parents or children widgets. | |
4064 | * | |
4065 | * Requires external locking. | |
4066 | * | |
4067 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4068 | * do any widget power switching. | |
4069 | */ | |
4070 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4071 | const char *pin) | |
4072 | { | |
4073 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4074 | } | |
4075 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4076 | ||
a5302181 LG |
4077 | /** |
4078 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4079 | * @dapm: DAPM context |
a5302181 LG |
4080 | * @pin: pin name |
4081 | * | |
74b8f955 | 4082 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4083 | * |
a5302181 LG |
4084 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4085 | * do any widget power switching. | |
4086 | */ | |
ce6120cc LG |
4087 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4088 | const char *pin) | |
a5302181 | 4089 | { |
11391100 CK |
4090 | int ret; |
4091 | ||
4092 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4093 | ||
4094 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4095 | ||
4096 | mutex_unlock(&dapm->card->dapm_mutex); | |
4097 | ||
4098 | return ret; | |
2b97eabc | 4099 | } |
a5302181 | 4100 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4101 | |
11391100 CK |
4102 | /** |
4103 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4104 | * @dapm: DAPM context | |
4105 | * @pin: pin name | |
4106 | * | |
4107 | * Marks the specified pin as being not connected, disabling it along | |
4108 | * any parent or child widgets. At present this is identical to | |
4109 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4110 | * additional things such as disabling controls which only affect | |
4111 | * paths through the pin. | |
4112 | * | |
4113 | * Requires external locking. | |
4114 | * | |
4115 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4116 | * do any widget power switching. | |
4117 | */ | |
4118 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4119 | const char *pin) | |
4120 | { | |
4121 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4122 | } | |
4123 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4124 | ||
5817b52a MB |
4125 | /** |
4126 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4127 | * @dapm: DAPM context |
5817b52a MB |
4128 | * @pin: pin name |
4129 | * | |
4130 | * Marks the specified pin as being not connected, disabling it along | |
4131 | * any parent or child widgets. At present this is identical to | |
4132 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4133 | * additional things such as disabling controls which only affect | |
4134 | * paths through the pin. | |
4135 | * | |
4136 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4137 | * do any widget power switching. | |
4138 | */ | |
ce6120cc | 4139 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4140 | { |
11391100 CK |
4141 | int ret; |
4142 | ||
4143 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4144 | ||
4145 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4146 | ||
4147 | mutex_unlock(&dapm->card->dapm_mutex); | |
4148 | ||
4149 | return ret; | |
5817b52a MB |
4150 | } |
4151 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4152 | ||
eeec12bf | 4153 | /** |
a5302181 | 4154 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4155 | * @dapm: DAPM context |
a5302181 | 4156 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4157 | * |
a5302181 | 4158 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4159 | * |
a5302181 | 4160 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4161 | */ |
ce6120cc LG |
4162 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4163 | const char *pin) | |
eeec12bf | 4164 | { |
91a5fca4 | 4165 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4166 | |
91a5fca4 LPC |
4167 | if (w) |
4168 | return w->connected; | |
a68b38ad | 4169 | |
eeec12bf GG |
4170 | return 0; |
4171 | } | |
a5302181 | 4172 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4173 | |
1547aba9 MB |
4174 | /** |
4175 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4176 | * @dapm: DAPM context |
1547aba9 MB |
4177 | * @pin: audio signal pin endpoint (or start point) |
4178 | * | |
4179 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4180 | * system is disabled a path between two endpoints flagged as ignoring | |
4181 | * suspend will not be disabled. The path must already be enabled via | |
4182 | * normal means at suspend time, it will not be turned on if it was not | |
4183 | * already enabled. | |
4184 | */ | |
ce6120cc LG |
4185 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4186 | const char *pin) | |
1547aba9 | 4187 | { |
91a5fca4 | 4188 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4189 | |
91a5fca4 | 4190 | if (!w) { |
30a6a1a4 | 4191 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4192 | return -EINVAL; |
1547aba9 MB |
4193 | } |
4194 | ||
91a5fca4 LPC |
4195 | w->ignore_suspend = 1; |
4196 | ||
4197 | return 0; | |
1547aba9 MB |
4198 | } |
4199 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4200 | ||
2b97eabc RP |
4201 | /** |
4202 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4203 | * @dapm: DAPM context |
2b97eabc RP |
4204 | * |
4205 | * Free all dapm widgets and resources. | |
4206 | */ | |
ce6120cc | 4207 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4208 | { |
6c45e126 | 4209 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4210 | dapm_free_widgets(dapm); |
7be31be8 | 4211 | list_del(&dapm->list); |
2b97eabc RP |
4212 | } |
4213 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4214 | ||
57996358 | 4215 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4216 | { |
01005a72 | 4217 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4218 | struct snd_soc_dapm_widget *w; |
4219 | LIST_HEAD(down_list); | |
4220 | int powerdown = 0; | |
4221 | ||
01005a72 LG |
4222 | mutex_lock(&card->dapm_mutex); |
4223 | ||
97c866de JN |
4224 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4225 | if (w->dapm != dapm) | |
4226 | continue; | |
51737470 | 4227 | if (w->power) { |
828a842f | 4228 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4229 | w->power = 0; |
51737470 MB |
4230 | powerdown = 1; |
4231 | } | |
4232 | } | |
4233 | ||
4234 | /* If there were no widgets to power down we're already in | |
4235 | * standby. | |
4236 | */ | |
4237 | if (powerdown) { | |
7679e42e MB |
4238 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4239 | snd_soc_dapm_set_bias_level(dapm, | |
4240 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4241 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4242 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4243 | snd_soc_dapm_set_bias_level(dapm, | |
4244 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4245 | } |
01005a72 LG |
4246 | |
4247 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4248 | } |
4249 | ||
4250 | /* | |
4251 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4252 | */ | |
4253 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4254 | { | |
57996358 | 4255 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4256 | |
57996358 | 4257 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4258 | if (dapm != &card->dapm) { |
4259 | soc_dapm_shutdown_dapm(dapm); | |
4260 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4261 | snd_soc_dapm_set_bias_level(dapm, | |
4262 | SND_SOC_BIAS_OFF); | |
4263 | } | |
ce6120cc | 4264 | } |
17282ba4 XX |
4265 | |
4266 | soc_dapm_shutdown_dapm(&card->dapm); | |
4267 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4268 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4269 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4270 | } |
4271 | ||
2b97eabc | 4272 | /* Module information */ |
d331124d | 4273 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4274 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4275 | MODULE_LICENSE("GPL"); |