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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)); | |
55 | static struct snd_soc_dapm_widget * | |
56 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
57 | const struct snd_soc_dapm_widget *widget); | |
58 | ||
2b97eabc RP |
59 | /* dapm power sequences - make this per codec in the future */ |
60 | static int dapm_up_seq[] = { | |
38357ab2 | 61 | [snd_soc_dapm_pre] = 0, |
62ea874a | 62 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 63 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
64 | [snd_soc_dapm_supply] = 2, |
65 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 66 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
67 | [snd_soc_dapm_dai_in] = 4, |
68 | [snd_soc_dapm_dai_out] = 4, | |
69 | [snd_soc_dapm_aif_in] = 4, | |
70 | [snd_soc_dapm_aif_out] = 4, | |
71 | [snd_soc_dapm_mic] = 5, | |
72 | [snd_soc_dapm_mux] = 6, | |
1dd275b6 MB |
73 | [snd_soc_dapm_dac] = 7, |
74 | [snd_soc_dapm_switch] = 8, | |
75 | [snd_soc_dapm_mixer] = 8, | |
76 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
77 | [snd_soc_dapm_pga] = 9, | |
78 | [snd_soc_dapm_adc] = 10, | |
79 | [snd_soc_dapm_out_drv] = 11, | |
80 | [snd_soc_dapm_hp] = 11, | |
81 | [snd_soc_dapm_spk] = 11, | |
82 | [snd_soc_dapm_line] = 11, | |
83 | [snd_soc_dapm_kcontrol] = 12, | |
84 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 85 | }; |
ca9c1aae | 86 | |
2b97eabc | 87 | static int dapm_down_seq[] = { |
38357ab2 | 88 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
89 | [snd_soc_dapm_kcontrol] = 1, |
90 | [snd_soc_dapm_adc] = 2, | |
91 | [snd_soc_dapm_hp] = 3, | |
92 | [snd_soc_dapm_spk] = 3, | |
93 | [snd_soc_dapm_line] = 3, | |
94 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 95 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 96 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 97 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
98 | [snd_soc_dapm_mixer] = 5, |
99 | [snd_soc_dapm_dac] = 6, | |
100 | [snd_soc_dapm_mic] = 7, | |
101 | [snd_soc_dapm_micbias] = 8, | |
102 | [snd_soc_dapm_mux] = 9, | |
010ff262 MB |
103 | [snd_soc_dapm_aif_in] = 10, |
104 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
105 | [snd_soc_dapm_dai_in] = 10, |
106 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 107 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 108 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
109 | [snd_soc_dapm_clock_supply] = 13, |
110 | [snd_soc_dapm_regulator_supply] = 13, | |
111 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
112 | }; |
113 | ||
f9fa2b18 MB |
114 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
115 | { | |
116 | if (dapm->card && dapm->card->instantiated) | |
117 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
118 | } | |
119 | ||
12ef193d | 120 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
121 | { |
122 | if (pop_time) | |
123 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
124 | } | |
125 | ||
fd8d3bc0 | 126 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
127 | { |
128 | va_list args; | |
fd8d3bc0 | 129 | char *buf; |
15e4c72f | 130 | |
fd8d3bc0 JN |
131 | if (!pop_time) |
132 | return; | |
15e4c72f | 133 | |
fd8d3bc0 JN |
134 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
135 | if (buf == NULL) | |
136 | return; | |
15e4c72f | 137 | |
fd8d3bc0 JN |
138 | va_start(args, fmt); |
139 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 140 | dev_info(dev, "%s", buf); |
15e4c72f | 141 | va_end(args); |
fd8d3bc0 JN |
142 | |
143 | kfree(buf); | |
15e4c72f MB |
144 | } |
145 | ||
db432b41 MB |
146 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
147 | { | |
148 | return !list_empty(&w->dirty); | |
149 | } | |
150 | ||
492c0a18 | 151 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 152 | { |
f9fa2b18 MB |
153 | dapm_assert_locked(w->dapm); |
154 | ||
75c1f891 MB |
155 | if (!dapm_dirty_widget(w)) { |
156 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
157 | w->name, reason); | |
db432b41 | 158 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 159 | } |
db432b41 MB |
160 | } |
161 | ||
e2d32ff6 MB |
162 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
163 | { | |
164 | struct snd_soc_card *card = dapm->card; | |
165 | struct snd_soc_dapm_widget *w; | |
166 | ||
167 | mutex_lock(&card->dapm_mutex); | |
168 | ||
169 | list_for_each_entry(w, &card->widgets, list) { | |
170 | switch (w->id) { | |
171 | case snd_soc_dapm_input: | |
172 | case snd_soc_dapm_output: | |
173 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
174 | break; | |
175 | default: | |
176 | break; | |
177 | } | |
178 | } | |
179 | ||
180 | mutex_unlock(&card->dapm_mutex); | |
181 | } | |
182 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
183 | ||
2b97eabc | 184 | /* create a new dapm widget */ |
88cb4290 | 185 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
186 | const struct snd_soc_dapm_widget *_widget) |
187 | { | |
88cb4290 | 188 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
189 | } |
190 | ||
e84357f7 | 191 | struct dapm_kcontrol_data { |
cf7c1de2 | 192 | unsigned int value; |
57295073 | 193 | struct snd_soc_dapm_widget *widget; |
5106b92f | 194 | struct list_head paths; |
2c75bdf3 | 195 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
196 | }; |
197 | ||
198 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
199 | struct snd_kcontrol *kcontrol) | |
200 | { | |
201 | struct dapm_kcontrol_data *data; | |
57295073 | 202 | struct soc_mixer_control *mc; |
e84357f7 | 203 | |
2c75bdf3 | 204 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
205 | if (!data) { |
206 | dev_err(widget->dapm->dev, | |
207 | "ASoC: can't allocate kcontrol data for %s\n", | |
208 | widget->name); | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
5106b92f | 212 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 213 | |
57295073 LPC |
214 | switch (widget->id) { |
215 | case snd_soc_dapm_switch: | |
216 | case snd_soc_dapm_mixer: | |
217 | case snd_soc_dapm_mixer_named_ctl: | |
218 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
219 | ||
220 | if (mc->autodisable) { | |
221 | struct snd_soc_dapm_widget template; | |
222 | ||
223 | memset(&template, 0, sizeof(template)); | |
224 | template.reg = mc->reg; | |
225 | template.mask = (1 << fls(mc->max)) - 1; | |
226 | template.shift = mc->shift; | |
227 | if (mc->invert) | |
228 | template.off_val = mc->max; | |
229 | else | |
230 | template.off_val = 0; | |
231 | template.on_val = template.off_val; | |
232 | template.id = snd_soc_dapm_kcontrol; | |
233 | template.name = kcontrol->id.name; | |
234 | ||
2daabd78 LPC |
235 | data->value = template.on_val; |
236 | ||
57295073 LPC |
237 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
238 | &template); | |
239 | if (!data->widget) { | |
240 | kfree(data); | |
241 | return -ENOMEM; | |
242 | } | |
243 | } | |
244 | break; | |
245 | default: | |
246 | break; | |
247 | } | |
248 | ||
e84357f7 LPC |
249 | kcontrol->private_data = data; |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
254 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
255 | { | |
256 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 257 | kfree(data->wlist); |
e84357f7 LPC |
258 | kfree(data); |
259 | } | |
260 | ||
261 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
262 | const struct snd_kcontrol *kcontrol) | |
263 | { | |
264 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
265 | ||
2c75bdf3 | 266 | return data->wlist; |
e84357f7 LPC |
267 | } |
268 | ||
269 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
270 | struct snd_soc_dapm_widget *widget) | |
271 | { | |
272 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
273 | struct snd_soc_dapm_widget_list *new_wlist; |
274 | unsigned int n; | |
e84357f7 | 275 | |
2c75bdf3 LPC |
276 | if (data->wlist) |
277 | n = data->wlist->num_widgets + 1; | |
278 | else | |
279 | n = 1; | |
280 | ||
281 | new_wlist = krealloc(data->wlist, | |
282 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
283 | if (!new_wlist) | |
e84357f7 LPC |
284 | return -ENOMEM; |
285 | ||
2c75bdf3 LPC |
286 | new_wlist->widgets[n - 1] = widget; |
287 | new_wlist->num_widgets = n; | |
e84357f7 | 288 | |
2c75bdf3 | 289 | data->wlist = new_wlist; |
e84357f7 LPC |
290 | |
291 | return 0; | |
292 | } | |
293 | ||
5106b92f LPC |
294 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
295 | struct snd_soc_dapm_path *path) | |
296 | { | |
297 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
298 | ||
299 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
300 | |
301 | if (data->widget) { | |
302 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
303 | path->source, NULL, NULL); | |
304 | } | |
305 | } | |
306 | ||
307 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
308 | { | |
309 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
310 | ||
311 | if (!data->widget) | |
312 | return true; | |
313 | ||
314 | return data->widget->power; | |
5106b92f LPC |
315 | } |
316 | ||
317 | static struct list_head *dapm_kcontrol_get_path_list( | |
318 | const struct snd_kcontrol *kcontrol) | |
319 | { | |
320 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
321 | ||
322 | return &data->paths; | |
323 | } | |
324 | ||
325 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
326 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
327 | list_kcontrol) | |
328 | ||
cf7c1de2 LPC |
329 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
330 | { | |
331 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
332 | ||
333 | return data->value; | |
334 | } | |
335 | ||
336 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
337 | unsigned int value) | |
338 | { | |
339 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
340 | ||
341 | if (data->value == value) | |
342 | return false; | |
343 | ||
57295073 LPC |
344 | if (data->widget) |
345 | data->widget->on_val = value; | |
346 | ||
cf7c1de2 LPC |
347 | data->value = value; |
348 | ||
349 | return true; | |
350 | } | |
351 | ||
ce0fc93a LPC |
352 | /** |
353 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
354 | * kcontrol | |
355 | * @kcontrol: The kcontrol | |
356 | * | |
357 | * Note: This function must only be used on kcontrols that are known to have | |
358 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
359 | */ | |
360 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
361 | struct snd_kcontrol *kcontrol) | |
362 | { | |
363 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
364 | } | |
365 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
366 | ||
eee5d7f9 LPC |
367 | /** |
368 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
369 | * @kcontrol: The kcontrol | |
370 | */ | |
371 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
372 | { | |
ce0fc93a | 373 | return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); |
eee5d7f9 LPC |
374 | } |
375 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
376 | ||
6c120e19 LG |
377 | static void dapm_reset(struct snd_soc_card *card) |
378 | { | |
379 | struct snd_soc_dapm_widget *w; | |
380 | ||
f9fa2b18 MB |
381 | lockdep_assert_held(&card->dapm_mutex); |
382 | ||
6c120e19 LG |
383 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
384 | ||
385 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 386 | w->new_power = w->power; |
6c120e19 LG |
387 | w->power_checked = false; |
388 | w->inputs = -1; | |
389 | w->outputs = -1; | |
390 | } | |
391 | } | |
392 | ||
94f99c87 LPC |
393 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
394 | { | |
395 | if (!dapm->component) | |
396 | return NULL; | |
397 | return dapm->component->name_prefix; | |
398 | } | |
399 | ||
ce0fc93a | 400 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 401 | unsigned int *value) |
0445bdf4 | 402 | { |
ce0fc93a | 403 | if (!dapm->component) |
e2c330b9 | 404 | return -EIO; |
ce0fc93a | 405 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
406 | } |
407 | ||
ce0fc93a | 408 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 409 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 410 | { |
ce0fc93a | 411 | if (!dapm->component) |
e2c330b9 | 412 | return -EIO; |
ce0fc93a | 413 | return snd_soc_component_update_bits_async(dapm->component, reg, |
e2c330b9 | 414 | mask, value); |
49575fb5 LG |
415 | } |
416 | ||
ce0fc93a LPC |
417 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
418 | int reg, unsigned int mask, unsigned int value) | |
419 | { | |
420 | if (!dapm->component) | |
421 | return -EIO; | |
422 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
423 | } | |
424 | ||
eb270e98 MB |
425 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
426 | { | |
e2c330b9 LPC |
427 | if (dapm->component) |
428 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
429 | } |
430 | ||
452c5eaa MB |
431 | /** |
432 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 433 | * @dapm: DAPM context |
452c5eaa MB |
434 | * @level: level to configure |
435 | * | |
436 | * Configure the bias (power) levels for the SoC audio device. | |
437 | * | |
438 | * Returns 0 for success else error. | |
439 | */ | |
ed5a4c47 | 440 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 441 | enum snd_soc_bias_level level) |
452c5eaa | 442 | { |
ed5a4c47 | 443 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
444 | int ret = 0; |
445 | ||
84e90930 MB |
446 | trace_snd_soc_bias_level_start(card, level); |
447 | ||
f0fba2ad | 448 | if (card && card->set_bias_level) |
d4c6005f | 449 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
450 | if (ret != 0) |
451 | goto out; | |
452 | ||
68f831c2 LPC |
453 | if (dapm->set_bias_level) |
454 | ret = dapm->set_bias_level(dapm, level); | |
455 | else if (!card || dapm != &card->dapm) | |
4123128e LG |
456 | dapm->bias_level = level; |
457 | ||
171ec6b0 MB |
458 | if (ret != 0) |
459 | goto out; | |
460 | ||
461 | if (card && card->set_bias_level_post) | |
d4c6005f | 462 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 463 | out: |
84e90930 MB |
464 | trace_snd_soc_bias_level_done(card, level); |
465 | ||
452c5eaa MB |
466 | return ret; |
467 | } | |
468 | ||
74b8f955 | 469 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 470 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
471 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
472 | struct snd_soc_dapm_path *path, const char *control_name, | |
473 | const struct snd_kcontrol_new *kcontrol) | |
2b97eabc | 474 | { |
2b97eabc | 475 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 476 | unsigned int val, item; |
2b97eabc | 477 | int i; |
24ff33ac | 478 | |
234c0b8f | 479 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 480 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
481 | val = (val >> e->shift_l) & e->mask; |
482 | item = snd_soc_enum_val_to_item(e, val); | |
483 | } else { | |
24ff33ac DP |
484 | /* since a virtual mux has no backing registers to |
485 | * decide which path to connect, it will try to match | |
486 | * with the first enumeration. This is to ensure | |
487 | * that the default mux choice (the first) will be | |
488 | * correctly powered up during initialization. | |
489 | */ | |
234c0b8f | 490 | item = 0; |
24ff33ac | 491 | } |
2e72f8e3 | 492 | |
9a8d38db | 493 | for (i = 0; i < e->items; i++) { |
2b97eabc | 494 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 495 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
496 | list_add(&path->list_sink, &dest->sources); |
497 | list_add(&path->list_source, &src->sinks); | |
498 | path->name = (char*)e->texts[i]; | |
234c0b8f LPC |
499 | if (i == item) |
500 | path->connect = 1; | |
501 | else | |
502 | path->connect = 0; | |
2b97eabc RP |
503 | return 0; |
504 | } | |
505 | } | |
506 | ||
507 | return -ENODEV; | |
508 | } | |
509 | ||
234c0b8f LPC |
510 | /* set up initial codec paths */ |
511 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_widget *w, | |
512 | struct snd_soc_dapm_path *p, int i) | |
513 | { | |
514 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
515 | w->kcontrol_news[i].private_value; | |
516 | unsigned int reg = mc->reg; | |
517 | unsigned int shift = mc->shift; | |
518 | unsigned int max = mc->max; | |
519 | unsigned int mask = (1 << fls(max)) - 1; | |
520 | unsigned int invert = mc->invert; | |
521 | unsigned int val; | |
522 | ||
523 | if (reg != SND_SOC_NOPM) { | |
ce0fc93a | 524 | soc_dapm_read(w->dapm, reg, &val); |
234c0b8f LPC |
525 | val = (val >> shift) & mask; |
526 | if (invert) | |
527 | val = max - val; | |
528 | p->connect = !!val; | |
529 | } else { | |
530 | p->connect = 0; | |
531 | } | |
532 | } | |
533 | ||
74b8f955 | 534 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 535 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
536 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
537 | struct snd_soc_dapm_path *path, const char *control_name) | |
538 | { | |
539 | int i; | |
540 | ||
541 | /* search for mixer kcontrol */ | |
542 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 543 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 544 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
545 | list_add(&path->list_sink, &dest->sources); |
546 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 547 | path->name = dest->kcontrol_news[i].name; |
234c0b8f | 548 | dapm_set_mixer_path_status(dest, path, i); |
2b97eabc RP |
549 | return 0; |
550 | } | |
551 | } | |
552 | return -ENODEV; | |
553 | } | |
554 | ||
af46800b | 555 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 556 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
557 | const struct snd_kcontrol_new *kcontrol_new, |
558 | struct snd_kcontrol **kcontrol) | |
559 | { | |
560 | struct snd_soc_dapm_widget *w; | |
561 | int i; | |
562 | ||
563 | *kcontrol = NULL; | |
564 | ||
565 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
566 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
567 | continue; | |
af46800b SW |
568 | for (i = 0; i < w->num_kcontrols; i++) { |
569 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
570 | if (w->kcontrols) | |
571 | *kcontrol = w->kcontrols[i]; | |
572 | return 1; | |
573 | } | |
574 | } | |
575 | } | |
576 | ||
577 | return 0; | |
578 | } | |
579 | ||
85762e71 SW |
580 | /* |
581 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
582 | * create it. Either way, add the widget into the control's widget list | |
583 | */ | |
584 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 585 | int kci) |
2b97eabc | 586 | { |
4b80b8c2 | 587 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 588 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 589 | const char *prefix; |
85762e71 SW |
590 | size_t prefix_len; |
591 | int shared; | |
592 | struct snd_kcontrol *kcontrol; | |
85762e71 | 593 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
594 | char *long_name; |
595 | const char *name; | |
596 | int ret; | |
efb7ac3f | 597 | |
94f99c87 | 598 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
599 | if (prefix) |
600 | prefix_len = strlen(prefix) + 1; | |
601 | else | |
602 | prefix_len = 0; | |
603 | ||
85762e71 SW |
604 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
605 | &kcontrol); | |
2b97eabc | 606 | |
85762e71 SW |
607 | if (!kcontrol) { |
608 | if (shared) { | |
609 | wname_in_long_name = false; | |
610 | kcname_in_long_name = true; | |
611 | } else { | |
612 | switch (w->id) { | |
613 | case snd_soc_dapm_switch: | |
614 | case snd_soc_dapm_mixer: | |
615 | wname_in_long_name = true; | |
616 | kcname_in_long_name = true; | |
617 | break; | |
618 | case snd_soc_dapm_mixer_named_ctl: | |
619 | wname_in_long_name = false; | |
620 | kcname_in_long_name = true; | |
621 | break; | |
622 | case snd_soc_dapm_mux: | |
85762e71 SW |
623 | wname_in_long_name = true; |
624 | kcname_in_long_name = false; | |
625 | break; | |
626 | default: | |
85762e71 | 627 | return -EINVAL; |
82cd8764 | 628 | } |
85762e71 SW |
629 | } |
630 | ||
631 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
632 | /* |
633 | * The control will get a prefix from the control | |
634 | * creation process but we're also using the same | |
635 | * prefix for widgets so cut the prefix off the | |
636 | * front of the widget name. | |
ca9c1aae | 637 | */ |
2b581074 | 638 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
639 | w->name + prefix_len, |
640 | w->kcontrol_news[kci].name); | |
e84357f7 | 641 | if (long_name == NULL) |
2b581074 | 642 | return -ENOMEM; |
85762e71 SW |
643 | |
644 | name = long_name; | |
645 | } else if (wname_in_long_name) { | |
646 | long_name = NULL; | |
647 | name = w->name + prefix_len; | |
648 | } else { | |
649 | long_name = NULL; | |
650 | name = w->kcontrol_news[kci].name; | |
651 | } | |
ca9c1aae | 652 | |
e84357f7 | 653 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 654 | prefix); |
656ca9d3 | 655 | kfree(long_name); |
9356e9d5 LPC |
656 | if (!kcontrol) |
657 | return -ENOMEM; | |
658 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
659 | |
660 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
661 | if (ret) { | |
662 | snd_ctl_free_one(kcontrol); | |
663 | return ret; | |
664 | } | |
665 | ||
85762e71 SW |
666 | ret = snd_ctl_add(card, kcontrol); |
667 | if (ret < 0) { | |
668 | dev_err(dapm->dev, | |
669 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
670 | w->name, name, ret); | |
85762e71 SW |
671 | return ret; |
672 | } | |
85762e71 | 673 | } |
2b97eabc | 674 | |
2c75bdf3 LPC |
675 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
676 | if (ret) | |
677 | return ret; | |
678 | ||
85762e71 | 679 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 680 | |
85762e71 SW |
681 | return 0; |
682 | } | |
219b93f5 | 683 | |
85762e71 SW |
684 | /* create new dapm mixer control */ |
685 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
686 | { | |
687 | int i, ret; | |
688 | struct snd_soc_dapm_path *path; | |
689 | ||
690 | /* add kcontrol */ | |
691 | for (i = 0; i < w->num_kcontrols; i++) { | |
692 | /* match name */ | |
693 | list_for_each_entry(path, &w->sources, list_sink) { | |
694 | /* mixer/mux paths name must match control name */ | |
695 | if (path->name != (char *)w->kcontrol_news[i].name) | |
696 | continue; | |
697 | ||
698 | if (w->kcontrols[i]) { | |
5106b92f | 699 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 700 | continue; |
2b97eabc | 701 | } |
85762e71 | 702 | |
946d92a1 | 703 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
704 | if (ret < 0) |
705 | return ret; | |
946d92a1 MB |
706 | |
707 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
708 | } |
709 | } | |
85762e71 SW |
710 | |
711 | return 0; | |
2b97eabc RP |
712 | } |
713 | ||
714 | /* create new dapm mux control */ | |
4b80b8c2 | 715 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 716 | { |
4b80b8c2 | 717 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 718 | struct snd_soc_dapm_path *path; |
af46800b | 719 | int ret; |
2b97eabc | 720 | |
af46800b SW |
721 | if (w->num_kcontrols != 1) { |
722 | dev_err(dapm->dev, | |
30a6a1a4 | 723 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 724 | w->name); |
2b97eabc RP |
725 | return -EINVAL; |
726 | } | |
727 | ||
fe581391 | 728 | if (list_empty(&w->sources)) { |
85762e71 SW |
729 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
730 | return -EINVAL; | |
af46800b | 731 | } |
ce6120cc | 732 | |
946d92a1 | 733 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
734 | if (ret < 0) |
735 | return ret; | |
fad59888 | 736 | |
2b97eabc | 737 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 738 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 739 | |
af46800b | 740 | return 0; |
2b97eabc RP |
741 | } |
742 | ||
743 | /* create new dapm volume control */ | |
4b80b8c2 | 744 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 745 | { |
a6c65736 | 746 | if (w->num_kcontrols) |
f7d41ae8 | 747 | dev_err(w->dapm->dev, |
30a6a1a4 | 748 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 749 | |
a6c65736 | 750 | return 0; |
2b97eabc RP |
751 | } |
752 | ||
753 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
754 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
755 | struct list_head *sink) | |
2b97eabc RP |
756 | { |
757 | struct snd_soc_dapm_path *p; | |
758 | ||
1059ecfa RT |
759 | list_for_each_entry(p, sink, list_source) { |
760 | if (p->walked) { | |
761 | p->walked = 0; | |
762 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
763 | } | |
764 | } | |
2b97eabc RP |
765 | } |
766 | ||
1059ecfa RT |
767 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
768 | struct list_head *source) | |
2b97eabc RP |
769 | { |
770 | struct snd_soc_dapm_path *p; | |
771 | ||
1059ecfa RT |
772 | list_for_each_entry(p, source, list_sink) { |
773 | if (p->walked) { | |
774 | p->walked = 0; | |
775 | dapm_clear_walk_input(dapm, &p->source->sources); | |
776 | } | |
777 | } | |
2b97eabc RP |
778 | } |
779 | ||
1059ecfa | 780 | |
9949788b MB |
781 | /* We implement power down on suspend by checking the power state of |
782 | * the ALSA card - when we are suspending the ALSA state for the card | |
783 | * is set to D3. | |
784 | */ | |
785 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
786 | { | |
12ea2c78 | 787 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 788 | |
f0fba2ad | 789 | switch (level) { |
9949788b MB |
790 | case SNDRV_CTL_POWER_D3hot: |
791 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 792 | if (widget->ignore_suspend) |
30a6a1a4 | 793 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 794 | widget->name); |
1547aba9 | 795 | return widget->ignore_suspend; |
9949788b MB |
796 | default: |
797 | return 1; | |
798 | } | |
799 | } | |
800 | ||
ec2e3031 LG |
801 | /* add widget to list if it's not already in the list */ |
802 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
803 | struct snd_soc_dapm_widget *w) | |
804 | { | |
805 | struct snd_soc_dapm_widget_list *wlist; | |
806 | int wlistsize, wlistentries, i; | |
807 | ||
808 | if (*list == NULL) | |
809 | return -EINVAL; | |
810 | ||
811 | wlist = *list; | |
812 | ||
813 | /* is this widget already in the list */ | |
814 | for (i = 0; i < wlist->num_widgets; i++) { | |
815 | if (wlist->widgets[i] == w) | |
816 | return 0; | |
817 | } | |
818 | ||
819 | /* allocate some new space */ | |
820 | wlistentries = wlist->num_widgets + 1; | |
821 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
822 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
823 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
824 | if (*list == NULL) { | |
30a6a1a4 | 825 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
826 | w->name); |
827 | return -ENOMEM; | |
828 | } | |
829 | wlist = *list; | |
830 | ||
831 | /* insert the widget */ | |
30a6a1a4 | 832 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
833 | w->name, wlist->num_widgets); |
834 | ||
835 | wlist->widgets[wlist->num_widgets] = w; | |
836 | wlist->num_widgets++; | |
837 | return 1; | |
838 | } | |
839 | ||
2b97eabc RP |
840 | /* |
841 | * Recursively check for a completed path to an active or physically connected | |
842 | * output widget. Returns number of complete paths. | |
843 | */ | |
ec2e3031 LG |
844 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
845 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
846 | { |
847 | struct snd_soc_dapm_path *path; | |
848 | int con = 0; | |
849 | ||
024dc078 MB |
850 | if (widget->outputs >= 0) |
851 | return widget->outputs; | |
852 | ||
de02d078 MB |
853 | DAPM_UPDATE_STAT(widget, path_checks); |
854 | ||
62ea874a MB |
855 | switch (widget->id) { |
856 | case snd_soc_dapm_supply: | |
857 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 858 | case snd_soc_dapm_clock_supply: |
57295073 | 859 | case snd_soc_dapm_kcontrol: |
246d0a17 | 860 | return 0; |
62ea874a MB |
861 | default: |
862 | break; | |
863 | } | |
246d0a17 | 864 | |
010ff262 MB |
865 | switch (widget->id) { |
866 | case snd_soc_dapm_adc: | |
867 | case snd_soc_dapm_aif_out: | |
4616274d | 868 | case snd_soc_dapm_dai_out: |
024dc078 MB |
869 | if (widget->active) { |
870 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
871 | return widget->outputs; | |
872 | } | |
010ff262 MB |
873 | default: |
874 | break; | |
875 | } | |
2b97eabc RP |
876 | |
877 | if (widget->connected) { | |
878 | /* connected pin ? */ | |
024dc078 MB |
879 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
880 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
881 | return widget->outputs; | |
882 | } | |
2b97eabc RP |
883 | |
884 | /* connected jack or spk ? */ | |
024dc078 MB |
885 | if (widget->id == snd_soc_dapm_hp || |
886 | widget->id == snd_soc_dapm_spk || | |
887 | (widget->id == snd_soc_dapm_line && | |
888 | !list_empty(&widget->sources))) { | |
889 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
890 | return widget->outputs; | |
891 | } | |
2b97eabc RP |
892 | } |
893 | ||
894 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
895 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
896 | ||
bf3a9e13 MB |
897 | if (path->weak) |
898 | continue; | |
899 | ||
8af294b4 MB |
900 | if (path->walking) |
901 | return 1; | |
902 | ||
2b97eabc RP |
903 | if (path->walked) |
904 | continue; | |
905 | ||
ec2e3031 LG |
906 | trace_snd_soc_dapm_output_path(widget, path); |
907 | ||
2b97eabc RP |
908 | if (path->sink && path->connect) { |
909 | path->walked = 1; | |
8af294b4 | 910 | path->walking = 1; |
ec2e3031 LG |
911 | |
912 | /* do we need to add this widget to the list ? */ | |
913 | if (list) { | |
914 | int err; | |
915 | err = dapm_list_add_widget(list, path->sink); | |
916 | if (err < 0) { | |
30a6a1a4 LG |
917 | dev_err(widget->dapm->dev, |
918 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 919 | widget->name); |
8af294b4 | 920 | path->walking = 0; |
ec2e3031 LG |
921 | return con; |
922 | } | |
923 | } | |
924 | ||
925 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
926 | |
927 | path->walking = 0; | |
2b97eabc RP |
928 | } |
929 | } | |
930 | ||
024dc078 MB |
931 | widget->outputs = con; |
932 | ||
2b97eabc RP |
933 | return con; |
934 | } | |
935 | ||
936 | /* | |
937 | * Recursively check for a completed path to an active or physically connected | |
938 | * input widget. Returns number of complete paths. | |
939 | */ | |
ec2e3031 LG |
940 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
941 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
942 | { |
943 | struct snd_soc_dapm_path *path; | |
944 | int con = 0; | |
945 | ||
024dc078 MB |
946 | if (widget->inputs >= 0) |
947 | return widget->inputs; | |
948 | ||
de02d078 MB |
949 | DAPM_UPDATE_STAT(widget, path_checks); |
950 | ||
62ea874a MB |
951 | switch (widget->id) { |
952 | case snd_soc_dapm_supply: | |
953 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 954 | case snd_soc_dapm_clock_supply: |
57295073 | 955 | case snd_soc_dapm_kcontrol: |
246d0a17 | 956 | return 0; |
62ea874a MB |
957 | default: |
958 | break; | |
959 | } | |
246d0a17 | 960 | |
2b97eabc | 961 | /* active stream ? */ |
010ff262 MB |
962 | switch (widget->id) { |
963 | case snd_soc_dapm_dac: | |
964 | case snd_soc_dapm_aif_in: | |
4616274d | 965 | case snd_soc_dapm_dai_in: |
024dc078 MB |
966 | if (widget->active) { |
967 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
968 | return widget->inputs; | |
969 | } | |
010ff262 MB |
970 | default: |
971 | break; | |
972 | } | |
2b97eabc RP |
973 | |
974 | if (widget->connected) { | |
975 | /* connected pin ? */ | |
024dc078 MB |
976 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
977 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
978 | return widget->inputs; | |
979 | } | |
2b97eabc RP |
980 | |
981 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
982 | if (widget->id == snd_soc_dapm_vmid) { |
983 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
984 | return widget->inputs; | |
985 | } | |
2b97eabc RP |
986 | |
987 | /* connected jack ? */ | |
eaeae5d9 | 988 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
989 | (widget->id == snd_soc_dapm_line && |
990 | !list_empty(&widget->sinks))) { | |
991 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
992 | return widget->inputs; | |
993 | } | |
994 | ||
1ab97c8c MB |
995 | /* signal generator */ |
996 | if (widget->id == snd_soc_dapm_siggen) { | |
997 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
998 | return widget->inputs; | |
999 | } | |
2b97eabc RP |
1000 | } |
1001 | ||
1002 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1003 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1004 | ||
bf3a9e13 MB |
1005 | if (path->weak) |
1006 | continue; | |
1007 | ||
8af294b4 MB |
1008 | if (path->walking) |
1009 | return 1; | |
1010 | ||
2b97eabc RP |
1011 | if (path->walked) |
1012 | continue; | |
1013 | ||
ec2e3031 LG |
1014 | trace_snd_soc_dapm_input_path(widget, path); |
1015 | ||
2b97eabc RP |
1016 | if (path->source && path->connect) { |
1017 | path->walked = 1; | |
8af294b4 | 1018 | path->walking = 1; |
ec2e3031 LG |
1019 | |
1020 | /* do we need to add this widget to the list ? */ | |
1021 | if (list) { | |
1022 | int err; | |
90c6ce0d | 1023 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1024 | if (err < 0) { |
30a6a1a4 LG |
1025 | dev_err(widget->dapm->dev, |
1026 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1027 | widget->name); |
8af294b4 | 1028 | path->walking = 0; |
ec2e3031 LG |
1029 | return con; |
1030 | } | |
1031 | } | |
1032 | ||
1033 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1034 | |
1035 | path->walking = 0; | |
2b97eabc RP |
1036 | } |
1037 | } | |
1038 | ||
024dc078 MB |
1039 | widget->inputs = con; |
1040 | ||
2b97eabc RP |
1041 | return con; |
1042 | } | |
1043 | ||
ec2e3031 LG |
1044 | /** |
1045 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1046 | * @dai: the soc DAI. | |
1047 | * @stream: stream direction. | |
1048 | * @list: list of active widgets for this stream. | |
1049 | * | |
1050 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1051 | * the initial stream specified by name. This takes into account | |
1052 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1053 | * | |
1054 | * Returns the number of valid paths or negative error. | |
1055 | */ | |
1056 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1057 | struct snd_soc_dapm_widget_list **list) | |
1058 | { | |
1059 | struct snd_soc_card *card = dai->card; | |
1060 | int paths; | |
1061 | ||
1062 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1063 | dapm_reset(card); | |
1064 | ||
1059ecfa | 1065 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1066 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1067 | dapm_clear_walk_output(&card->dapm, |
1068 | &dai->playback_widget->sinks); | |
1069 | } else { | |
d298caae | 1070 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1071 | dapm_clear_walk_input(&card->dapm, |
1072 | &dai->capture_widget->sources); | |
1073 | } | |
ec2e3031 LG |
1074 | |
1075 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1076 | mutex_unlock(&card->dapm_mutex); |
1077 | ||
1078 | return paths; | |
1079 | } | |
1080 | ||
62ea874a MB |
1081 | /* |
1082 | * Handler for regulator supply widget. | |
1083 | */ | |
1084 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1085 | struct snd_kcontrol *kcontrol, int event) | |
1086 | { | |
c05b84d1 MB |
1087 | int ret; |
1088 | ||
eb270e98 MB |
1089 | soc_dapm_async_complete(w->dapm); |
1090 | ||
c05b84d1 | 1091 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1092 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1093 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1094 | if (ret != 0) |
1095 | dev_warn(w->dapm->dev, | |
30686c35 | 1096 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1097 | w->name, ret); |
1098 | } | |
1099 | ||
a3cc056b | 1100 | return regulator_enable(w->regulator); |
c05b84d1 | 1101 | } else { |
de9ba98b | 1102 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1103 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1104 | if (ret != 0) |
1105 | dev_warn(w->dapm->dev, | |
30686c35 | 1106 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1107 | w->name, ret); |
1108 | } | |
1109 | ||
a3cc056b | 1110 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1111 | } |
62ea874a MB |
1112 | } |
1113 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1114 | ||
d7e7eb91 OL |
1115 | /* |
1116 | * Handler for clock supply widget. | |
1117 | */ | |
1118 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1119 | struct snd_kcontrol *kcontrol, int event) | |
1120 | { | |
1121 | if (!w->clk) | |
1122 | return -EIO; | |
1123 | ||
eb270e98 MB |
1124 | soc_dapm_async_complete(w->dapm); |
1125 | ||
ec02995a | 1126 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1127 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1128 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1129 | } else { |
37c1b927 | 1130 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1131 | return 0; |
1132 | } | |
ec02995a | 1133 | #endif |
98b3cf12 | 1134 | return 0; |
d7e7eb91 OL |
1135 | } |
1136 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1137 | ||
d805002b MB |
1138 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1139 | { | |
9b8a83b2 MB |
1140 | if (w->power_checked) |
1141 | return w->new_power; | |
1142 | ||
d805002b | 1143 | if (w->force) |
9b8a83b2 | 1144 | w->new_power = 1; |
d805002b | 1145 | else |
9b8a83b2 MB |
1146 | w->new_power = w->power_check(w); |
1147 | ||
1148 | w->power_checked = true; | |
1149 | ||
1150 | return w->new_power; | |
d805002b MB |
1151 | } |
1152 | ||
cd0f2d47 MB |
1153 | /* Generic check to see if a widget should be powered. |
1154 | */ | |
1155 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1156 | { | |
1157 | int in, out; | |
1158 | ||
de02d078 MB |
1159 | DAPM_UPDATE_STAT(w, power_checks); |
1160 | ||
ec2e3031 | 1161 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1162 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1163 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1164 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1165 | return out != 0 && in != 0; |
1166 | } | |
1167 | ||
6ea31b9f MB |
1168 | /* Check to see if an ADC has power */ |
1169 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1170 | { | |
1171 | int in; | |
1172 | ||
de02d078 MB |
1173 | DAPM_UPDATE_STAT(w, power_checks); |
1174 | ||
6ea31b9f | 1175 | if (w->active) { |
ec2e3031 | 1176 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1177 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1178 | return in != 0; |
1179 | } else { | |
1180 | return dapm_generic_check_power(w); | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | /* Check to see if a DAC has power */ | |
1185 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1186 | { | |
1187 | int out; | |
1188 | ||
de02d078 MB |
1189 | DAPM_UPDATE_STAT(w, power_checks); |
1190 | ||
6ea31b9f | 1191 | if (w->active) { |
ec2e3031 | 1192 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1193 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1194 | return out != 0; |
1195 | } else { | |
1196 | return dapm_generic_check_power(w); | |
1197 | } | |
1198 | } | |
1199 | ||
246d0a17 MB |
1200 | /* Check to see if a power supply is needed */ |
1201 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1202 | { | |
1203 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1204 | |
de02d078 MB |
1205 | DAPM_UPDATE_STAT(w, power_checks); |
1206 | ||
246d0a17 MB |
1207 | /* Check if one of our outputs is connected */ |
1208 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1209 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1210 | ||
bf3a9e13 MB |
1211 | if (path->weak) |
1212 | continue; | |
1213 | ||
215edda3 MB |
1214 | if (path->connected && |
1215 | !path->connected(path->source, path->sink)) | |
1216 | continue; | |
1217 | ||
3017358a MB |
1218 | if (!path->sink) |
1219 | continue; | |
1220 | ||
f68d7e16 MB |
1221 | if (dapm_widget_power_check(path->sink)) |
1222 | return 1; | |
246d0a17 MB |
1223 | } |
1224 | ||
f68d7e16 | 1225 | return 0; |
246d0a17 MB |
1226 | } |
1227 | ||
35c64bca MB |
1228 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1229 | { | |
1230 | return 1; | |
1231 | } | |
1232 | ||
38357ab2 MB |
1233 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1234 | struct snd_soc_dapm_widget *b, | |
828a842f | 1235 | bool power_up) |
42aa3418 | 1236 | { |
828a842f MB |
1237 | int *sort; |
1238 | ||
1239 | if (power_up) | |
1240 | sort = dapm_up_seq; | |
1241 | else | |
1242 | sort = dapm_down_seq; | |
1243 | ||
38357ab2 MB |
1244 | if (sort[a->id] != sort[b->id]) |
1245 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1246 | if (a->subseq != b->subseq) { |
1247 | if (power_up) | |
1248 | return a->subseq - b->subseq; | |
1249 | else | |
1250 | return b->subseq - a->subseq; | |
1251 | } | |
b22ead2a MB |
1252 | if (a->reg != b->reg) |
1253 | return a->reg - b->reg; | |
84dab567 MB |
1254 | if (a->dapm != b->dapm) |
1255 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1256 | |
38357ab2 MB |
1257 | return 0; |
1258 | } | |
42aa3418 | 1259 | |
38357ab2 MB |
1260 | /* Insert a widget in order into a DAPM power sequence. */ |
1261 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1262 | struct list_head *list, | |
828a842f | 1263 | bool power_up) |
38357ab2 MB |
1264 | { |
1265 | struct snd_soc_dapm_widget *w; | |
1266 | ||
1267 | list_for_each_entry(w, list, power_list) | |
828a842f | 1268 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1269 | list_add_tail(&new_widget->power_list, &w->power_list); |
1270 | return; | |
1271 | } | |
1272 | ||
1273 | list_add_tail(&new_widget->power_list, list); | |
1274 | } | |
1275 | ||
95dd5cd6 | 1276 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1277 | struct snd_soc_dapm_widget *w, int event) |
1278 | { | |
68f89ad8 MB |
1279 | const char *ev_name; |
1280 | int power, ret; | |
1281 | ||
1282 | switch (event) { | |
1283 | case SND_SOC_DAPM_PRE_PMU: | |
1284 | ev_name = "PRE_PMU"; | |
1285 | power = 1; | |
1286 | break; | |
1287 | case SND_SOC_DAPM_POST_PMU: | |
1288 | ev_name = "POST_PMU"; | |
1289 | power = 1; | |
1290 | break; | |
1291 | case SND_SOC_DAPM_PRE_PMD: | |
1292 | ev_name = "PRE_PMD"; | |
1293 | power = 0; | |
1294 | break; | |
1295 | case SND_SOC_DAPM_POST_PMD: | |
1296 | ev_name = "POST_PMD"; | |
1297 | power = 0; | |
1298 | break; | |
80114129 MB |
1299 | case SND_SOC_DAPM_WILL_PMU: |
1300 | ev_name = "WILL_PMU"; | |
1301 | power = 1; | |
1302 | break; | |
1303 | case SND_SOC_DAPM_WILL_PMD: | |
1304 | ev_name = "WILL_PMD"; | |
1305 | power = 0; | |
1306 | break; | |
68f89ad8 | 1307 | default: |
a6ed0608 | 1308 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1309 | return; |
1310 | } | |
1311 | ||
39eb5fd1 | 1312 | if (w->new_power != power) |
68f89ad8 MB |
1313 | return; |
1314 | ||
1315 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1316 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1317 | w->name, ev_name); |
eb270e98 | 1318 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1319 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1320 | ret = w->event(w, NULL, event); |
84e90930 | 1321 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1322 | if (ret < 0) |
95dd5cd6 | 1323 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1324 | ev_name, w->name, ret); |
1325 | } | |
1326 | } | |
1327 | ||
b22ead2a | 1328 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1329 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1330 | struct list_head *pending) |
163cac06 | 1331 | { |
ce0fc93a | 1332 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1333 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1334 | int reg; |
b22ead2a MB |
1335 | unsigned int value = 0; |
1336 | unsigned int mask = 0; | |
b22ead2a | 1337 | |
ce0fc93a LPC |
1338 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1339 | reg = w->reg; | |
1340 | dapm = w->dapm; | |
b22ead2a MB |
1341 | |
1342 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1343 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1344 | w->power = w->new_power; |
b22ead2a | 1345 | |
de9ba98b LPC |
1346 | mask |= w->mask << w->shift; |
1347 | if (w->power) | |
1348 | value |= w->on_val << w->shift; | |
b22ead2a | 1349 | else |
de9ba98b | 1350 | value |= w->off_val << w->shift; |
b22ead2a | 1351 | |
ce0fc93a | 1352 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1353 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1354 | w->name, reg, value, mask); | |
81628103 | 1355 | |
68f89ad8 | 1356 | /* Check for events */ |
95dd5cd6 LPC |
1357 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1358 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1359 | } |
1360 | ||
1361 | if (reg >= 0) { | |
29376bc7 MB |
1362 | /* Any widget will do, they should all be updating the |
1363 | * same register. | |
1364 | */ | |
29376bc7 | 1365 | |
ce0fc93a | 1366 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1367 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1368 | value, mask, reg, card->pop_time); |
1369 | pop_wait(card->pop_time); | |
ce0fc93a | 1370 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1371 | } |
1372 | ||
81628103 | 1373 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1374 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1375 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1376 | } |
b22ead2a | 1377 | } |
42aa3418 | 1378 | |
b22ead2a MB |
1379 | /* Apply a DAPM power sequence. |
1380 | * | |
1381 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1382 | * order to minimise the number of writes to the device required | |
1383 | * multiple widgets will be updated in a single write where possible. | |
1384 | * Currently anything that requires more than a single write is not | |
1385 | * handled. | |
1386 | */ | |
95dd5cd6 LPC |
1387 | static void dapm_seq_run(struct snd_soc_card *card, |
1388 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1389 | { |
1390 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1391 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1392 | LIST_HEAD(pending); |
1393 | int cur_sort = -1; | |
20e4859d | 1394 | int cur_subseq = -1; |
b22ead2a | 1395 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1396 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1397 | int ret, i; |
828a842f MB |
1398 | int *sort; |
1399 | ||
1400 | if (power_up) | |
1401 | sort = dapm_up_seq; | |
1402 | else | |
1403 | sort = dapm_down_seq; | |
163cac06 | 1404 | |
b22ead2a MB |
1405 | list_for_each_entry_safe(w, n, list, power_list) { |
1406 | ret = 0; | |
1407 | ||
1408 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1409 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1410 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1411 | if (!list_empty(&pending)) |
95dd5cd6 | 1412 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1413 | |
474b62d6 MB |
1414 | if (cur_dapm && cur_dapm->seq_notifier) { |
1415 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1416 | if (sort[i] == cur_sort) | |
1417 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1418 | i, |
1419 | cur_subseq); | |
474b62d6 MB |
1420 | } |
1421 | ||
eb270e98 MB |
1422 | if (cur_dapm && w->dapm != cur_dapm) |
1423 | soc_dapm_async_complete(cur_dapm); | |
1424 | ||
b22ead2a MB |
1425 | INIT_LIST_HEAD(&pending); |
1426 | cur_sort = -1; | |
b0b3e6f8 | 1427 | cur_subseq = INT_MIN; |
b22ead2a | 1428 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1429 | cur_dapm = NULL; |
b22ead2a MB |
1430 | } |
1431 | ||
163cac06 MB |
1432 | switch (w->id) { |
1433 | case snd_soc_dapm_pre: | |
1434 | if (!w->event) | |
b22ead2a MB |
1435 | list_for_each_entry_safe_continue(w, n, list, |
1436 | power_list); | |
163cac06 | 1437 | |
b22ead2a | 1438 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1439 | ret = w->event(w, |
1440 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1441 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1442 | ret = w->event(w, |
1443 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1444 | break; |
1445 | ||
1446 | case snd_soc_dapm_post: | |
1447 | if (!w->event) | |
b22ead2a MB |
1448 | list_for_each_entry_safe_continue(w, n, list, |
1449 | power_list); | |
163cac06 | 1450 | |
b22ead2a | 1451 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1452 | ret = w->event(w, |
1453 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1454 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1455 | ret = w->event(w, |
1456 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1457 | break; |
1458 | ||
b22ead2a | 1459 | default: |
81628103 MB |
1460 | /* Queue it up for application */ |
1461 | cur_sort = sort[w->id]; | |
20e4859d | 1462 | cur_subseq = w->subseq; |
81628103 | 1463 | cur_reg = w->reg; |
7be31be8 | 1464 | cur_dapm = w->dapm; |
81628103 MB |
1465 | list_move(&w->power_list, &pending); |
1466 | break; | |
163cac06 | 1467 | } |
b22ead2a MB |
1468 | |
1469 | if (ret < 0) | |
f7d41ae8 | 1470 | dev_err(w->dapm->dev, |
30a6a1a4 | 1471 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1472 | } |
b22ead2a MB |
1473 | |
1474 | if (!list_empty(&pending)) | |
95dd5cd6 | 1475 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1476 | |
1477 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1478 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1479 | if (sort[i] == cur_sort) | |
1480 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1481 | i, cur_subseq); |
474b62d6 | 1482 | } |
eb270e98 MB |
1483 | |
1484 | list_for_each_entry(d, &card->dapm_list, list) { | |
1485 | soc_dapm_async_complete(d); | |
1486 | } | |
42aa3418 MB |
1487 | } |
1488 | ||
95dd5cd6 | 1489 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1490 | { |
95dd5cd6 | 1491 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1492 | struct snd_soc_dapm_widget_list *wlist; |
1493 | struct snd_soc_dapm_widget *w = NULL; | |
1494 | unsigned int wi; | |
97404f2e MB |
1495 | int ret; |
1496 | ||
57295073 | 1497 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1498 | return; |
1499 | ||
e84357f7 | 1500 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1501 | |
ce6cfaf1 LPC |
1502 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1503 | w = wlist->widgets[wi]; | |
1504 | ||
1505 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1506 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1507 | if (ret != 0) | |
95dd5cd6 | 1508 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1509 | w->name, ret); |
1510 | } | |
97404f2e MB |
1511 | } |
1512 | ||
ce6cfaf1 LPC |
1513 | if (!w) |
1514 | return; | |
1515 | ||
ce0fc93a LPC |
1516 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1517 | update->val); | |
97404f2e | 1518 | if (ret < 0) |
95dd5cd6 | 1519 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1520 | w->name, ret); |
97404f2e | 1521 | |
ce6cfaf1 LPC |
1522 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1523 | w = wlist->widgets[wi]; | |
1524 | ||
1525 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1526 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1527 | if (ret != 0) | |
95dd5cd6 | 1528 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1529 | w->name, ret); |
1530 | } | |
97404f2e MB |
1531 | } |
1532 | } | |
1533 | ||
9d0624a7 MB |
1534 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1535 | * they're changing state. | |
1536 | */ | |
1537 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1538 | { | |
1539 | struct snd_soc_dapm_context *d = data; | |
1540 | int ret; | |
1541 | ||
56fba41f MB |
1542 | /* If we're off and we're not supposed to be go into STANDBY */ |
1543 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1544 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1545 | if (d->dev) |
1546 | pm_runtime_get_sync(d->dev); | |
1547 | ||
9d0624a7 MB |
1548 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1549 | if (ret != 0) | |
1550 | dev_err(d->dev, | |
30a6a1a4 | 1551 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1552 | } |
1553 | ||
ce85a4d7 LPC |
1554 | /* Prepare for a transition to ON or away from ON */ |
1555 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1556 | d->bias_level != SND_SOC_BIAS_ON) || | |
1557 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1558 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1559 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1560 | if (ret != 0) | |
1561 | dev_err(d->dev, | |
30a6a1a4 | 1562 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1563 | } |
1564 | } | |
1565 | ||
1566 | /* Async callback run prior to DAPM sequences - brings to their final | |
1567 | * state. | |
1568 | */ | |
1569 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1570 | { | |
1571 | struct snd_soc_dapm_context *d = data; | |
1572 | int ret; | |
1573 | ||
1574 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1575 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1576 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1577 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1578 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1579 | if (ret != 0) | |
30a6a1a4 | 1580 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1581 | ret); |
1582 | } | |
97404f2e | 1583 | |
9d0624a7 | 1584 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1585 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1586 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1587 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1588 | if (ret != 0) | |
30a6a1a4 LG |
1589 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1590 | ret); | |
f1aac484 MB |
1591 | |
1592 | if (d->dev) | |
fb644e9c | 1593 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1594 | } |
1595 | ||
1596 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1597 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1598 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1599 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1600 | if (ret != 0) | |
30a6a1a4 | 1601 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1602 | ret); |
1603 | } | |
1604 | } | |
97404f2e | 1605 | |
fe4fda5d MB |
1606 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1607 | bool power, bool connect) | |
1608 | { | |
1609 | /* If a connection is being made or broken then that update | |
1610 | * will have marked the peer dirty, otherwise the widgets are | |
1611 | * not connected and this update has no impact. */ | |
1612 | if (!connect) | |
1613 | return; | |
1614 | ||
1615 | /* If the peer is already in the state we're moving to then we | |
1616 | * won't have an impact on it. */ | |
1617 | if (power != peer->power) | |
75c1f891 | 1618 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1619 | } |
1620 | ||
05623c43 MB |
1621 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1622 | struct list_head *up_list, | |
1623 | struct list_head *down_list) | |
1624 | { | |
db432b41 MB |
1625 | struct snd_soc_dapm_path *path; |
1626 | ||
05623c43 MB |
1627 | if (w->power == power) |
1628 | return; | |
1629 | ||
1630 | trace_snd_soc_dapm_widget_power(w, power); | |
1631 | ||
db432b41 | 1632 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1633 | * also. |
db432b41 MB |
1634 | */ |
1635 | list_for_each_entry(path, &w->sources, list_sink) { | |
1636 | if (path->source) { | |
fe4fda5d MB |
1637 | dapm_widget_set_peer_power(path->source, power, |
1638 | path->connect); | |
db432b41 MB |
1639 | } |
1640 | } | |
f3bf3e45 MB |
1641 | switch (w->id) { |
1642 | case snd_soc_dapm_supply: | |
62ea874a | 1643 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1644 | case snd_soc_dapm_clock_supply: |
57295073 | 1645 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1646 | /* Supplies can't affect their outputs, only their inputs */ |
1647 | break; | |
1648 | default: | |
1649 | list_for_each_entry(path, &w->sinks, list_source) { | |
1650 | if (path->sink) { | |
1651 | dapm_widget_set_peer_power(path->sink, power, | |
1652 | path->connect); | |
1653 | } | |
db432b41 | 1654 | } |
f3bf3e45 | 1655 | break; |
db432b41 MB |
1656 | } |
1657 | ||
05623c43 MB |
1658 | if (power) |
1659 | dapm_seq_insert(w, up_list, true); | |
1660 | else | |
1661 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1662 | } |
1663 | ||
7c81beb0 MB |
1664 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1665 | struct list_head *up_list, | |
1666 | struct list_head *down_list) | |
1667 | { | |
7c81beb0 MB |
1668 | int power; |
1669 | ||
1670 | switch (w->id) { | |
1671 | case snd_soc_dapm_pre: | |
1672 | dapm_seq_insert(w, down_list, false); | |
1673 | break; | |
1674 | case snd_soc_dapm_post: | |
1675 | dapm_seq_insert(w, up_list, true); | |
1676 | break; | |
1677 | ||
1678 | default: | |
d805002b | 1679 | power = dapm_widget_power_check(w); |
7c81beb0 | 1680 | |
05623c43 | 1681 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1682 | break; |
1683 | } | |
1684 | } | |
1685 | ||
2b97eabc RP |
1686 | /* |
1687 | * Scan each dapm widget for complete audio path. | |
1688 | * A complete path is a route that has valid endpoints i.e.:- | |
1689 | * | |
1690 | * o DAC to output pin. | |
1691 | * o Input Pin to ADC. | |
1692 | * o Input pin to Output pin (bypass, sidetone) | |
1693 | * o DAC to ADC (loopback). | |
1694 | */ | |
95dd5cd6 | 1695 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1696 | { |
1697 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1698 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1699 | LIST_HEAD(up_list); |
1700 | LIST_HEAD(down_list); | |
2955b47d | 1701 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1702 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1703 | |
f9fa2b18 MB |
1704 | lockdep_assert_held(&card->dapm_mutex); |
1705 | ||
84e90930 MB |
1706 | trace_snd_soc_dapm_start(card); |
1707 | ||
56fba41f | 1708 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1709 | if (d->idle_bias_off) |
1710 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1711 | else | |
1712 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1713 | } |
7be31be8 | 1714 | |
6c120e19 | 1715 | dapm_reset(card); |
9b8a83b2 | 1716 | |
6d3ddc81 | 1717 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1718 | * lists indicating if they should be powered up or down. We |
1719 | * only check widgets that have been flagged as dirty but note | |
1720 | * that new widgets may be added to the dirty list while we | |
1721 | * iterate. | |
6d3ddc81 | 1722 | */ |
db432b41 | 1723 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1724 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1725 | } |
1726 | ||
f9de6d74 | 1727 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1728 | switch (w->id) { |
1729 | case snd_soc_dapm_pre: | |
1730 | case snd_soc_dapm_post: | |
1731 | /* These widgets always need to be powered */ | |
1732 | break; | |
1733 | default: | |
1734 | list_del_init(&w->dirty); | |
1735 | break; | |
1736 | } | |
db432b41 | 1737 | |
39eb5fd1 | 1738 | if (w->new_power) { |
f9de6d74 MB |
1739 | d = w->dapm; |
1740 | ||
1741 | /* Supplies and micbiases only bring the | |
1742 | * context up to STANDBY as unless something | |
1743 | * else is active and passing audio they | |
afe62367 MB |
1744 | * generally don't require full power. Signal |
1745 | * generators are virtual pins and have no | |
1746 | * power impact themselves. | |
f9de6d74 MB |
1747 | */ |
1748 | switch (w->id) { | |
afe62367 | 1749 | case snd_soc_dapm_siggen: |
da83fea6 | 1750 | case snd_soc_dapm_vmid: |
afe62367 | 1751 | break; |
f9de6d74 | 1752 | case snd_soc_dapm_supply: |
62ea874a | 1753 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1754 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1755 | case snd_soc_dapm_micbias: |
1756 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1757 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1758 | break; | |
1759 | default: | |
1760 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1761 | break; | |
1762 | } | |
1763 | } | |
1764 | ||
1765 | } | |
1766 | ||
85a843c5 MB |
1767 | /* Force all contexts in the card to the same bias state if |
1768 | * they're not ground referenced. | |
1769 | */ | |
56fba41f | 1770 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1771 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1772 | if (d->target_bias_level > bias) |
1773 | bias = d->target_bias_level; | |
52ba67bf | 1774 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1775 | if (!d->idle_bias_off) |
1776 | d->target_bias_level = bias; | |
52ba67bf | 1777 | |
de02d078 | 1778 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1779 | |
17282ba4 XX |
1780 | /* Run card bias changes at first */ |
1781 | dapm_pre_sequence_async(&card->dapm, 0); | |
1782 | /* Run other bias changes in parallel */ | |
1783 | list_for_each_entry(d, &card->dapm_list, list) { | |
1784 | if (d != &card->dapm) | |
1785 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1786 | &async_domain); | |
1787 | } | |
9d0624a7 | 1788 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1789 | |
cf1f7c6e | 1790 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1791 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1792 | } |
1793 | ||
cf1f7c6e | 1794 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1795 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1796 | } |
1797 | ||
6d3ddc81 | 1798 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1799 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1800 | |
95dd5cd6 | 1801 | dapm_widget_update(card); |
97404f2e | 1802 | |
6d3ddc81 | 1803 | /* Now power up. */ |
95dd5cd6 | 1804 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1805 | |
9d0624a7 | 1806 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1807 | list_for_each_entry(d, &card->dapm_list, list) { |
1808 | if (d != &card->dapm) | |
1809 | async_schedule_domain(dapm_post_sequence_async, d, | |
1810 | &async_domain); | |
1811 | } | |
9d0624a7 | 1812 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1813 | /* Run card bias changes at last */ |
1814 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1815 | |
8078d87f LG |
1816 | /* do we need to notify any clients that DAPM event is complete */ |
1817 | list_for_each_entry(d, &card->dapm_list, list) { | |
1818 | if (d->stream_event) | |
1819 | d->stream_event(d, event); | |
1820 | } | |
1821 | ||
95dd5cd6 | 1822 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1823 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1824 | pop_wait(card->pop_time); |
cb507e7e | 1825 | |
84e90930 MB |
1826 | trace_snd_soc_dapm_done(card); |
1827 | ||
42aa3418 | 1828 | return 0; |
2b97eabc RP |
1829 | } |
1830 | ||
79fb9387 | 1831 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1832 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1833 | char __user *user_buf, | |
1834 | size_t count, loff_t *ppos) | |
1835 | { | |
1836 | struct snd_soc_dapm_widget *w = file->private_data; | |
1837 | char *buf; | |
1838 | int in, out; | |
1839 | ssize_t ret; | |
1840 | struct snd_soc_dapm_path *p = NULL; | |
1841 | ||
1842 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1843 | if (!buf) | |
1844 | return -ENOMEM; | |
1845 | ||
ec2e3031 | 1846 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1847 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1848 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1849 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1850 | |
f13ebada MB |
1851 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1852 | w->name, w->power ? "On" : "Off", | |
1853 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1854 | |
d033c36a MB |
1855 | if (w->reg >= 0) |
1856 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1857 | " - R%d(0x%x) mask 0x%x", |
1858 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1859 | |
1860 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1861 | ||
3eef08ba MB |
1862 | if (w->sname) |
1863 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1864 | w->sname, | |
1865 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1866 | |
1867 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1868 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1869 | continue; |
1870 | ||
79fb9387 MB |
1871 | if (p->connect) |
1872 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1873 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1874 | p->name ? p->name : "static", |
1875 | p->source->name); | |
1876 | } | |
1877 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1878 | if (p->connected && !p->connected(w, p->sink)) |
1879 | continue; | |
1880 | ||
79fb9387 MB |
1881 | if (p->connect) |
1882 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1883 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1884 | p->name ? p->name : "static", |
1885 | p->sink->name); | |
1886 | } | |
1887 | ||
1888 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1889 | ||
1890 | kfree(buf); | |
1891 | return ret; | |
1892 | } | |
1893 | ||
1894 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1895 | .open = simple_open, |
79fb9387 | 1896 | .read = dapm_widget_power_read_file, |
6038f373 | 1897 | .llseek = default_llseek, |
79fb9387 MB |
1898 | }; |
1899 | ||
ef49e4fa MB |
1900 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1901 | size_t count, loff_t *ppos) | |
1902 | { | |
1903 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1904 | char *level; | |
1905 | ||
1906 | switch (dapm->bias_level) { | |
1907 | case SND_SOC_BIAS_ON: | |
1908 | level = "On\n"; | |
1909 | break; | |
1910 | case SND_SOC_BIAS_PREPARE: | |
1911 | level = "Prepare\n"; | |
1912 | break; | |
1913 | case SND_SOC_BIAS_STANDBY: | |
1914 | level = "Standby\n"; | |
1915 | break; | |
1916 | case SND_SOC_BIAS_OFF: | |
1917 | level = "Off\n"; | |
1918 | break; | |
1919 | default: | |
a6ed0608 | 1920 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1921 | level = "Unknown\n"; |
1922 | break; | |
1923 | } | |
1924 | ||
1925 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1926 | strlen(level)); | |
1927 | } | |
1928 | ||
1929 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1930 | .open = simple_open, |
ef49e4fa MB |
1931 | .read = dapm_bias_read_file, |
1932 | .llseek = default_llseek, | |
1933 | }; | |
1934 | ||
8eecaf62 LPC |
1935 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1936 | struct dentry *parent) | |
79fb9387 | 1937 | { |
79fb9387 MB |
1938 | struct dentry *d; |
1939 | ||
8eecaf62 LPC |
1940 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1941 | ||
1942 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1943 | dev_warn(dapm->dev, |
30a6a1a4 | 1944 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1945 | return; |
8eecaf62 | 1946 | } |
79fb9387 | 1947 | |
ef49e4fa MB |
1948 | d = debugfs_create_file("bias_level", 0444, |
1949 | dapm->debugfs_dapm, dapm, | |
1950 | &dapm_bias_fops); | |
1951 | if (!d) | |
1952 | dev_warn(dapm->dev, | |
1953 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1954 | } |
ef49e4fa | 1955 | |
d5d1e0be LPC |
1956 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1957 | { | |
1958 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1959 | struct dentry *d; | |
79fb9387 | 1960 | |
d5d1e0be LPC |
1961 | if (!dapm->debugfs_dapm || !w->name) |
1962 | return; | |
1963 | ||
1964 | d = debugfs_create_file(w->name, 0444, | |
1965 | dapm->debugfs_dapm, w, | |
1966 | &dapm_widget_power_fops); | |
1967 | if (!d) | |
1968 | dev_warn(w->dapm->dev, | |
1969 | "ASoC: Failed to create %s debugfs file\n", | |
1970 | w->name); | |
79fb9387 | 1971 | } |
d5d1e0be | 1972 | |
6c45e126 LPC |
1973 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1974 | { | |
1975 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1976 | } | |
1977 | ||
79fb9387 | 1978 | #else |
8eecaf62 LPC |
1979 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1980 | struct dentry *parent) | |
79fb9387 MB |
1981 | { |
1982 | } | |
d5d1e0be LPC |
1983 | |
1984 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1985 | { | |
1986 | } | |
1987 | ||
6c45e126 LPC |
1988 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1989 | { | |
1990 | } | |
1991 | ||
79fb9387 MB |
1992 | #endif |
1993 | ||
2b97eabc | 1994 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 1995 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 1996 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1997 | { |
1998 | struct snd_soc_dapm_path *path; | |
1999 | int found = 0; | |
2000 | ||
f9fa2b18 MB |
2001 | lockdep_assert_held(&card->dapm_mutex); |
2002 | ||
2b97eabc | 2003 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2004 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2005 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2006 | continue; |
2007 | ||
2008 | found = 1; | |
2009 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2010 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2011 | path->connect = 1; /* new connection */ |
75c1f891 | 2012 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2013 | } else { |
2014 | if (path->connect) | |
75c1f891 MB |
2015 | dapm_mark_dirty(path->source, |
2016 | "mux disconnection"); | |
2b97eabc | 2017 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2018 | } |
ce6cfaf1 | 2019 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2020 | } |
2021 | ||
ce6cfaf1 | 2022 | if (found) |
95dd5cd6 | 2023 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2024 | |
618dae11 | 2025 | return found; |
2b97eabc | 2026 | } |
4edbb345 | 2027 | |
ce6cfaf1 | 2028 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2029 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2030 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2031 | { |
ce6cfaf1 | 2032 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2033 | int ret; |
2034 | ||
3cd04343 | 2035 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2036 | card->update = update; |
95dd5cd6 | 2037 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2038 | card->update = NULL; |
4edbb345 | 2039 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2040 | if (ret > 0) |
c3f48ae6 | 2041 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2042 | return ret; |
2043 | } | |
40f02cd9 | 2044 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2045 | |
1b075e3f | 2046 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2047 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2048 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2049 | { |
2050 | struct snd_soc_dapm_path *path; | |
2051 | int found = 0; | |
2052 | ||
f9fa2b18 MB |
2053 | lockdep_assert_held(&card->dapm_mutex); |
2054 | ||
2b97eabc | 2055 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2056 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2057 | found = 1; |
283375ce | 2058 | path->connect = connect; |
75c1f891 | 2059 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2060 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2061 | } |
2062 | ||
ce6cfaf1 | 2063 | if (found) |
95dd5cd6 | 2064 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2065 | |
618dae11 | 2066 | return found; |
2b97eabc | 2067 | } |
4edbb345 | 2068 | |
ce6cfaf1 | 2069 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2070 | struct snd_kcontrol *kcontrol, int connect, |
2071 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2072 | { |
ce6cfaf1 | 2073 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2074 | int ret; |
2075 | ||
3cd04343 | 2076 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2077 | card->update = update; |
95dd5cd6 | 2078 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2079 | card->update = NULL; |
4edbb345 | 2080 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2081 | if (ret > 0) |
c3f48ae6 | 2082 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2083 | return ret; |
2084 | } | |
40f02cd9 | 2085 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2086 | |
44ba2641 | 2087 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 2088 | { |
2b97eabc RP |
2089 | struct snd_soc_dapm_widget *w; |
2090 | int count = 0; | |
2091 | char *state = "not set"; | |
2092 | ||
00200107 | 2093 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
2094 | if (w->dapm != &codec->dapm) |
2095 | continue; | |
2b97eabc RP |
2096 | |
2097 | /* only display widgets that burnm power */ | |
2098 | switch (w->id) { | |
2099 | case snd_soc_dapm_hp: | |
2100 | case snd_soc_dapm_mic: | |
2101 | case snd_soc_dapm_spk: | |
2102 | case snd_soc_dapm_line: | |
2103 | case snd_soc_dapm_micbias: | |
2104 | case snd_soc_dapm_dac: | |
2105 | case snd_soc_dapm_adc: | |
2106 | case snd_soc_dapm_pga: | |
d88429a6 | 2107 | case snd_soc_dapm_out_drv: |
2b97eabc | 2108 | case snd_soc_dapm_mixer: |
ca9c1aae | 2109 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2110 | case snd_soc_dapm_supply: |
62ea874a | 2111 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2112 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2113 | if (w->name) |
2114 | count += sprintf(buf + count, "%s: %s\n", | |
2115 | w->name, w->power ? "On":"Off"); | |
2116 | break; | |
2117 | default: | |
2118 | break; | |
2119 | } | |
2120 | } | |
2121 | ||
ce6120cc | 2122 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2123 | case SND_SOC_BIAS_ON: |
2124 | state = "On"; | |
2b97eabc | 2125 | break; |
0be9898a MB |
2126 | case SND_SOC_BIAS_PREPARE: |
2127 | state = "Prepare"; | |
2b97eabc | 2128 | break; |
0be9898a MB |
2129 | case SND_SOC_BIAS_STANDBY: |
2130 | state = "Standby"; | |
2b97eabc | 2131 | break; |
0be9898a MB |
2132 | case SND_SOC_BIAS_OFF: |
2133 | state = "Off"; | |
2b97eabc RP |
2134 | break; |
2135 | } | |
2136 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2137 | ||
2138 | return count; | |
2139 | } | |
2140 | ||
44ba2641 BC |
2141 | /* show dapm widget status in sys fs */ |
2142 | static ssize_t dapm_widget_show(struct device *dev, | |
2143 | struct device_attribute *attr, char *buf) | |
2144 | { | |
2145 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2146 | int i, count = 0; | |
2147 | ||
2148 | for (i = 0; i < rtd->num_codecs; i++) { | |
2149 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
2150 | count += dapm_widget_show_codec(codec, buf + count); | |
2151 | } | |
2152 | ||
2153 | return count; | |
2154 | } | |
2155 | ||
2b97eabc RP |
2156 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2157 | ||
2158 | int snd_soc_dapm_sys_add(struct device *dev) | |
2159 | { | |
12ef193d | 2160 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2161 | } |
2162 | ||
2163 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2164 | { | |
aef90843 | 2165 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2166 | } |
2167 | ||
8872293f LPC |
2168 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2169 | { | |
2170 | list_del(&path->list_sink); | |
2171 | list_del(&path->list_source); | |
5106b92f | 2172 | list_del(&path->list_kcontrol); |
8872293f | 2173 | list_del(&path->list); |
8872293f LPC |
2174 | kfree(path); |
2175 | } | |
2176 | ||
2b97eabc | 2177 | /* free all dapm widgets and resources */ |
ce6120cc | 2178 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2179 | { |
2180 | struct snd_soc_dapm_widget *w, *next_w; | |
2181 | struct snd_soc_dapm_path *p, *next_p; | |
2182 | ||
97c866de JN |
2183 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2184 | if (w->dapm != dapm) | |
2185 | continue; | |
2b97eabc | 2186 | list_del(&w->list); |
8ddab3f5 JN |
2187 | /* |
2188 | * remove source and sink paths associated to this widget. | |
2189 | * While removing the path, remove reference to it from both | |
2190 | * source and sink widgets so that path is removed only once. | |
2191 | */ | |
8872293f LPC |
2192 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2193 | dapm_free_path(p); | |
2194 | ||
2195 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2196 | dapm_free_path(p); | |
2197 | ||
fad59888 | 2198 | kfree(w->kcontrols); |
ead9b919 | 2199 | kfree(w->name); |
2b97eabc RP |
2200 | kfree(w); |
2201 | } | |
2b97eabc RP |
2202 | } |
2203 | ||
91a5fca4 LPC |
2204 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2205 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2206 | bool search_other_contexts) | |
a5302181 LG |
2207 | { |
2208 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2209 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2210 | |
97c866de | 2211 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2212 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2213 | if (w->dapm == dapm) |
2214 | return w; | |
2215 | else | |
2216 | fallback = w; | |
a5302181 LG |
2217 | } |
2218 | } | |
2219 | ||
91a5fca4 LPC |
2220 | if (search_other_contexts) |
2221 | return fallback; | |
2222 | ||
2223 | return NULL; | |
2224 | } | |
2225 | ||
2226 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2227 | const char *pin, int status) | |
2228 | { | |
2229 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2230 | ||
f9fa2b18 MB |
2231 | dapm_assert_locked(dapm); |
2232 | ||
91a5fca4 | 2233 | if (!w) { |
30a6a1a4 | 2234 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2235 | return -EINVAL; |
0d86733c MB |
2236 | } |
2237 | ||
1a8b2d9d MB |
2238 | if (w->connected != status) |
2239 | dapm_mark_dirty(w, "pin configuration"); | |
2240 | ||
91a5fca4 LPC |
2241 | w->connected = status; |
2242 | if (status == 0) | |
2243 | w->force = 0; | |
2244 | ||
2245 | return 0; | |
a5302181 LG |
2246 | } |
2247 | ||
2b97eabc | 2248 | /** |
3eb29dfb | 2249 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2250 | * @dapm: DAPM context |
2b97eabc RP |
2251 | * |
2252 | * Walks all dapm audio paths and powers widgets according to their | |
2253 | * stream or path usage. | |
2254 | * | |
3eb29dfb CK |
2255 | * Requires external locking. |
2256 | * | |
2b97eabc RP |
2257 | * Returns 0 for success. |
2258 | */ | |
3eb29dfb | 2259 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2260 | { |
4f4c0072 MB |
2261 | /* |
2262 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2263 | * silly DAPM runs during card startup. | |
2264 | */ | |
2265 | if (!dapm->card || !dapm->card->instantiated) | |
2266 | return 0; | |
2267 | ||
3eb29dfb CK |
2268 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2269 | } | |
2270 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2271 | ||
2272 | /** | |
2273 | * snd_soc_dapm_sync - scan and power dapm paths | |
2274 | * @dapm: DAPM context | |
2275 | * | |
2276 | * Walks all dapm audio paths and powers widgets according to their | |
2277 | * stream or path usage. | |
2278 | * | |
2279 | * Returns 0 for success. | |
2280 | */ | |
2281 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2282 | { | |
2283 | int ret; | |
2284 | ||
3cd04343 | 2285 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2286 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2287 | mutex_unlock(&dapm->card->dapm_mutex); |
2288 | return ret; | |
2b97eabc | 2289 | } |
a5302181 | 2290 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2291 | |
2553628e LPC |
2292 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2293 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2294 | const char *control, | |
2295 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2296 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2297 | { |
2298 | struct snd_soc_dapm_path *path; | |
2553628e | 2299 | int ret; |
2b97eabc RP |
2300 | |
2301 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2302 | if (!path) | |
2303 | return -ENOMEM; | |
2304 | ||
2305 | path->source = wsource; | |
2306 | path->sink = wsink; | |
2553628e | 2307 | path->connected = connected; |
2b97eabc | 2308 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2309 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2310 | INIT_LIST_HEAD(&path->list_source); |
2311 | INIT_LIST_HEAD(&path->list_sink); | |
2312 | ||
2313 | /* check for external widgets */ | |
2314 | if (wsink->id == snd_soc_dapm_input) { | |
2315 | if (wsource->id == snd_soc_dapm_micbias || | |
2316 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2317 | wsource->id == snd_soc_dapm_line || |
2318 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2319 | wsink->ext = 1; |
2320 | } | |
2321 | if (wsource->id == snd_soc_dapm_output) { | |
2322 | if (wsink->id == snd_soc_dapm_spk || | |
2323 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2324 | wsink->id == snd_soc_dapm_line || |
2325 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2326 | wsource->ext = 1; |
2327 | } | |
2328 | ||
34742cb0 LPC |
2329 | dapm_mark_dirty(wsource, "Route added"); |
2330 | dapm_mark_dirty(wsink, "Route added"); | |
2331 | ||
2b97eabc RP |
2332 | /* connect static paths */ |
2333 | if (control == NULL) { | |
8ddab3f5 | 2334 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2335 | list_add(&path->list_sink, &wsink->sources); |
2336 | list_add(&path->list_source, &wsource->sinks); | |
2337 | path->connect = 1; | |
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | /* connect dynamic paths */ | |
dc2bea61 | 2342 | switch (wsink->id) { |
2b97eabc RP |
2343 | case snd_soc_dapm_adc: |
2344 | case snd_soc_dapm_dac: | |
2345 | case snd_soc_dapm_pga: | |
d88429a6 | 2346 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2347 | case snd_soc_dapm_input: |
2348 | case snd_soc_dapm_output: | |
1ab97c8c | 2349 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2350 | case snd_soc_dapm_micbias: |
2351 | case snd_soc_dapm_vmid: | |
2352 | case snd_soc_dapm_pre: | |
2353 | case snd_soc_dapm_post: | |
246d0a17 | 2354 | case snd_soc_dapm_supply: |
62ea874a | 2355 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2356 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2357 | case snd_soc_dapm_aif_in: |
2358 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2359 | case snd_soc_dapm_dai_in: |
2360 | case snd_soc_dapm_dai_out: | |
c74184ed | 2361 | case snd_soc_dapm_dai_link: |
57295073 | 2362 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2363 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2364 | list_add(&path->list_sink, &wsink->sources); |
2365 | list_add(&path->list_source, &wsource->sinks); | |
2366 | path->connect = 1; | |
2367 | return 0; | |
2368 | case snd_soc_dapm_mux: | |
ce6120cc | 2369 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2370 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2371 | if (ret != 0) |
2372 | goto err; | |
2373 | break; | |
2374 | case snd_soc_dapm_switch: | |
2375 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2376 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2377 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2378 | if (ret != 0) |
2379 | goto err; | |
2380 | break; | |
2381 | case snd_soc_dapm_hp: | |
2382 | case snd_soc_dapm_mic: | |
2383 | case snd_soc_dapm_line: | |
2384 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2385 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2386 | list_add(&path->list_sink, &wsink->sources); |
2387 | list_add(&path->list_source, &wsource->sinks); | |
2388 | path->connect = 0; | |
2389 | return 0; | |
2390 | } | |
fabd0384 | 2391 | |
2b97eabc | 2392 | return 0; |
2553628e LPC |
2393 | err: |
2394 | kfree(path); | |
2395 | return ret; | |
2396 | } | |
2b97eabc | 2397 | |
2553628e | 2398 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2399 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2400 | { |
2401 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2402 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2403 | const char *sink; | |
2404 | const char *source; | |
2405 | char prefixed_sink[80]; | |
2406 | char prefixed_source[80]; | |
94f99c87 | 2407 | const char *prefix; |
2553628e LPC |
2408 | int ret; |
2409 | ||
94f99c87 LPC |
2410 | prefix = soc_dapm_prefix(dapm); |
2411 | if (prefix) { | |
2553628e | 2412 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2413 | prefix, route->sink); |
2553628e LPC |
2414 | sink = prefixed_sink; |
2415 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2416 | prefix, route->source); |
2553628e LPC |
2417 | source = prefixed_source; |
2418 | } else { | |
2419 | sink = route->sink; | |
2420 | source = route->source; | |
2421 | } | |
2422 | ||
2423 | /* | |
2424 | * find src and dest widgets over all widgets but favor a widget from | |
2425 | * current DAPM context | |
2426 | */ | |
2427 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2428 | if (!wsink && !(strcmp(w->name, sink))) { | |
2429 | wtsink = w; | |
2430 | if (w->dapm == dapm) | |
2431 | wsink = w; | |
2432 | continue; | |
2433 | } | |
2434 | if (!wsource && !(strcmp(w->name, source))) { | |
2435 | wtsource = w; | |
2436 | if (w->dapm == dapm) | |
2437 | wsource = w; | |
2438 | } | |
2439 | } | |
2440 | /* use widget from another DAPM context if not found from this */ | |
2441 | if (!wsink) | |
2442 | wsink = wtsink; | |
2443 | if (!wsource) | |
2444 | wsource = wtsource; | |
2445 | ||
2446 | if (wsource == NULL) { | |
2447 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2448 | route->source); | |
2449 | return -ENODEV; | |
2450 | } | |
2451 | if (wsink == NULL) { | |
2452 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2453 | route->sink); | |
2454 | return -ENODEV; | |
2455 | } | |
2456 | ||
2457 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2458 | route->connected); | |
2459 | if (ret) | |
2460 | goto err; | |
2461 | ||
2462 | return 0; | |
2b97eabc | 2463 | err: |
30a6a1a4 | 2464 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2465 | source, route->control, sink); |
2b97eabc RP |
2466 | return ret; |
2467 | } | |
105f1c28 | 2468 | |
efcc3c61 MB |
2469 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2470 | const struct snd_soc_dapm_route *route) | |
2471 | { | |
2472 | struct snd_soc_dapm_path *path, *p; | |
2473 | const char *sink; | |
2474 | const char *source; | |
2475 | char prefixed_sink[80]; | |
2476 | char prefixed_source[80]; | |
94f99c87 | 2477 | const char *prefix; |
efcc3c61 MB |
2478 | |
2479 | if (route->control) { | |
2480 | dev_err(dapm->dev, | |
30a6a1a4 | 2481 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2482 | return -EINVAL; |
2483 | } | |
2484 | ||
94f99c87 LPC |
2485 | prefix = soc_dapm_prefix(dapm); |
2486 | if (prefix) { | |
efcc3c61 | 2487 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2488 | prefix, route->sink); |
efcc3c61 MB |
2489 | sink = prefixed_sink; |
2490 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2491 | prefix, route->source); |
efcc3c61 MB |
2492 | source = prefixed_source; |
2493 | } else { | |
2494 | sink = route->sink; | |
2495 | source = route->source; | |
2496 | } | |
2497 | ||
2498 | path = NULL; | |
2499 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2500 | if (strcmp(p->source->name, source) != 0) | |
2501 | continue; | |
2502 | if (strcmp(p->sink->name, sink) != 0) | |
2503 | continue; | |
2504 | path = p; | |
2505 | break; | |
2506 | } | |
2507 | ||
2508 | if (path) { | |
2509 | dapm_mark_dirty(path->source, "Route removed"); | |
2510 | dapm_mark_dirty(path->sink, "Route removed"); | |
2511 | ||
8872293f | 2512 | dapm_free_path(path); |
efcc3c61 | 2513 | } else { |
30a6a1a4 | 2514 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2515 | source, sink); |
2516 | } | |
2517 | ||
2518 | return 0; | |
2519 | } | |
2520 | ||
105f1c28 MB |
2521 | /** |
2522 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2523 | * @dapm: DAPM context |
105f1c28 MB |
2524 | * @route: audio routes |
2525 | * @num: number of routes | |
2526 | * | |
2527 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2528 | * the widget receiving the audio signal, whilst the source is the sender | |
2529 | * of the audio signal. | |
2530 | * | |
2531 | * Returns 0 for success else error. On error all resources can be freed | |
2532 | * with a call to snd_soc_card_free(). | |
2533 | */ | |
ce6120cc | 2534 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2535 | const struct snd_soc_dapm_route *route, int num) |
2536 | { | |
62d4a4b9 | 2537 | int i, r, ret = 0; |
105f1c28 | 2538 | |
a73fb2df | 2539 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2540 | for (i = 0; i < num; i++) { |
a4e9154c | 2541 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2542 | if (r < 0) { |
30a6a1a4 LG |
2543 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2544 | route->source, | |
2545 | route->control ? route->control : "direct", | |
2546 | route->sink); | |
62d4a4b9 | 2547 | ret = r; |
105f1c28 MB |
2548 | } |
2549 | route++; | |
2550 | } | |
a73fb2df | 2551 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2552 | |
60884c27 | 2553 | return ret; |
105f1c28 MB |
2554 | } |
2555 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2556 | ||
efcc3c61 MB |
2557 | /** |
2558 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2559 | * @dapm: DAPM context | |
2560 | * @route: audio routes | |
2561 | * @num: number of routes | |
2562 | * | |
2563 | * Removes routes from the DAPM context. | |
2564 | */ | |
2565 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2566 | const struct snd_soc_dapm_route *route, int num) | |
2567 | { | |
2568 | int i, ret = 0; | |
2569 | ||
2570 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2571 | for (i = 0; i < num; i++) { | |
2572 | snd_soc_dapm_del_route(dapm, route); | |
2573 | route++; | |
2574 | } | |
2575 | mutex_unlock(&dapm->card->dapm_mutex); | |
2576 | ||
2577 | return ret; | |
2578 | } | |
2579 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2580 | ||
bf3a9e13 MB |
2581 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2582 | const struct snd_soc_dapm_route *route) | |
2583 | { | |
2584 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2585 | route->source, | |
2586 | true); | |
2587 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2588 | route->sink, | |
2589 | true); | |
2590 | struct snd_soc_dapm_path *path; | |
2591 | int count = 0; | |
2592 | ||
2593 | if (!source) { | |
30a6a1a4 | 2594 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2595 | route->source); |
2596 | return -ENODEV; | |
2597 | } | |
2598 | ||
2599 | if (!sink) { | |
30a6a1a4 | 2600 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2601 | route->sink); |
2602 | return -ENODEV; | |
2603 | } | |
2604 | ||
2605 | if (route->control || route->connected) | |
30a6a1a4 | 2606 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2607 | route->source, route->sink); |
2608 | ||
2609 | list_for_each_entry(path, &source->sinks, list_source) { | |
2610 | if (path->sink == sink) { | |
2611 | path->weak = 1; | |
2612 | count++; | |
2613 | } | |
2614 | } | |
2615 | ||
2616 | if (count == 0) | |
30a6a1a4 | 2617 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2618 | route->source, route->sink); |
2619 | if (count > 1) | |
30a6a1a4 | 2620 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2621 | count, route->source, route->sink); |
2622 | ||
2623 | return 0; | |
2624 | } | |
2625 | ||
2626 | /** | |
2627 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2628 | * @dapm: DAPM context | |
2629 | * @route: audio routes | |
2630 | * @num: number of routes | |
2631 | * | |
2632 | * Mark existing routes matching those specified in the passed array | |
2633 | * as being weak, meaning that they are ignored for the purpose of | |
2634 | * power decisions. The main intended use case is for sidetone paths | |
2635 | * which couple audio between other independent paths if they are both | |
2636 | * active in order to make the combination work better at the user | |
2637 | * level but which aren't intended to be "used". | |
2638 | * | |
2639 | * Note that CODEC drivers should not use this as sidetone type paths | |
2640 | * can frequently also be used as bypass paths. | |
2641 | */ | |
2642 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2643 | const struct snd_soc_dapm_route *route, int num) | |
2644 | { | |
2645 | int i, err; | |
2646 | int ret = 0; | |
2647 | ||
a73fb2df | 2648 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2649 | for (i = 0; i < num; i++) { |
2650 | err = snd_soc_dapm_weak_route(dapm, route); | |
2651 | if (err) | |
2652 | ret = err; | |
2653 | route++; | |
2654 | } | |
a73fb2df | 2655 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2656 | |
2657 | return ret; | |
2658 | } | |
2659 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2660 | ||
2b97eabc RP |
2661 | /** |
2662 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2663 | * @dapm: DAPM context |
2b97eabc RP |
2664 | * |
2665 | * Checks the codec for any new dapm widgets and creates them if found. | |
2666 | * | |
2667 | * Returns 0 for success. | |
2668 | */ | |
824ef826 | 2669 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2670 | { |
2671 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2672 | unsigned int val; |
2b97eabc | 2673 | |
95dd5cd6 | 2674 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2675 | |
95dd5cd6 | 2676 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2677 | { |
2678 | if (w->new) | |
2679 | continue; | |
2680 | ||
fad59888 SW |
2681 | if (w->num_kcontrols) { |
2682 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2683 | sizeof(struct snd_kcontrol *), | |
2684 | GFP_KERNEL); | |
a73fb2df | 2685 | if (!w->kcontrols) { |
95dd5cd6 | 2686 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2687 | return -ENOMEM; |
a73fb2df | 2688 | } |
fad59888 SW |
2689 | } |
2690 | ||
2b97eabc RP |
2691 | switch(w->id) { |
2692 | case snd_soc_dapm_switch: | |
2693 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2694 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2695 | dapm_new_mixer(w); |
2b97eabc RP |
2696 | break; |
2697 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2698 | dapm_new_mux(w); |
2b97eabc | 2699 | break; |
2b97eabc | 2700 | case snd_soc_dapm_pga: |
d88429a6 | 2701 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2702 | dapm_new_pga(w); |
2b97eabc | 2703 | break; |
7ca3a18b | 2704 | default: |
2b97eabc RP |
2705 | break; |
2706 | } | |
b66a70d5 MB |
2707 | |
2708 | /* Read the initial power state from the device */ | |
2709 | if (w->reg >= 0) { | |
ce0fc93a | 2710 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2711 | val = val >> w->shift; |
de9ba98b LPC |
2712 | val &= w->mask; |
2713 | if (val == w->on_val) | |
b66a70d5 MB |
2714 | w->power = 1; |
2715 | } | |
2716 | ||
2b97eabc | 2717 | w->new = 1; |
d5d1e0be | 2718 | |
7508b12a | 2719 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2720 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2721 | } |
2722 | ||
95dd5cd6 LPC |
2723 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2724 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2725 | return 0; |
2726 | } | |
2727 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2728 | ||
2729 | /** | |
2730 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2731 | * @kcontrol: mixer control | |
ac11a2b3 | 2732 | * @ucontrol: control element information |
2b97eabc RP |
2733 | * |
2734 | * Callback to get the value of a dapm mixer control. | |
2735 | * | |
2736 | * Returns 0 for success. | |
2737 | */ | |
2738 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2739 | struct snd_ctl_elem_value *ucontrol) | |
2740 | { | |
ce0fc93a LPC |
2741 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2742 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2743 | struct soc_mixer_control *mc = |
2744 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2745 | int reg = mc->reg; |
815ecf8d | 2746 | unsigned int shift = mc->shift; |
4eaa9819 | 2747 | int max = mc->max; |
815ecf8d | 2748 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2749 | unsigned int invert = mc->invert; |
57295073 | 2750 | unsigned int val; |
ce0fc93a | 2751 | int ret = 0; |
da602ab8 BT |
2752 | |
2753 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2754 | dev_warn(dapm->dev, |
30a6a1a4 | 2755 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2756 | kcontrol->id.name); |
2b97eabc | 2757 | |
57295073 | 2758 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2759 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2760 | ret = soc_dapm_read(dapm, reg, &val); | |
2761 | val = (val >> shift) & mask; | |
2762 | } else { | |
57295073 | 2763 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2764 | } |
57295073 LPC |
2765 | mutex_unlock(&card->dapm_mutex); |
2766 | ||
da602ab8 | 2767 | if (invert) |
57295073 LPC |
2768 | ucontrol->value.integer.value[0] = max - val; |
2769 | else | |
2770 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2771 | |
ce0fc93a | 2772 | return ret; |
2b97eabc RP |
2773 | } |
2774 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2775 | ||
2776 | /** | |
2777 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2778 | * @kcontrol: mixer control | |
ac11a2b3 | 2779 | * @ucontrol: control element information |
2b97eabc RP |
2780 | * |
2781 | * Callback to set the value of a dapm mixer control. | |
2782 | * | |
2783 | * Returns 0 for success. | |
2784 | */ | |
2785 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2786 | struct snd_ctl_elem_value *ucontrol) | |
2787 | { | |
ce0fc93a LPC |
2788 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2789 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2790 | struct soc_mixer_control *mc = |
2791 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2792 | int reg = mc->reg; |
815ecf8d | 2793 | unsigned int shift = mc->shift; |
4eaa9819 | 2794 | int max = mc->max; |
815ecf8d JS |
2795 | unsigned int mask = (1 << fls(max)) - 1; |
2796 | unsigned int invert = mc->invert; | |
e9cf7049 | 2797 | unsigned int val; |
18626c7e | 2798 | int connect, change, reg_change = 0; |
97404f2e | 2799 | struct snd_soc_dapm_update update; |
52765976 | 2800 | int ret = 0; |
2b97eabc | 2801 | |
da602ab8 | 2802 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 2803 | dev_warn(dapm->dev, |
30a6a1a4 | 2804 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2805 | kcontrol->id.name); |
2806 | ||
2b97eabc | 2807 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2808 | connect = !!val; |
2b97eabc RP |
2809 | |
2810 | if (invert) | |
a7a4ac86 | 2811 | val = max - val; |
2b97eabc | 2812 | |
3cd04343 | 2813 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2814 | |
249ce138 | 2815 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2816 | |
18626c7e JN |
2817 | if (reg != SND_SOC_NOPM) { |
2818 | mask = mask << shift; | |
2819 | val = val << shift; | |
2820 | ||
ce0fc93a | 2821 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
2822 | } |
2823 | ||
2824 | if (change || reg_change) { | |
2825 | if (reg_change) { | |
2826 | update.kcontrol = kcontrol; | |
2827 | update.reg = reg; | |
2828 | update.mask = mask; | |
2829 | update.val = val; | |
2830 | card->update = &update; | |
249ce138 | 2831 | } |
18626c7e | 2832 | change |= reg_change; |
97404f2e | 2833 | |
52765976 | 2834 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2835 | |
564c6504 | 2836 | card->update = NULL; |
283375ce MB |
2837 | } |
2838 | ||
a73fb2df | 2839 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2840 | |
2841 | if (ret > 0) | |
2842 | soc_dpcm_runtime_update(card); | |
2843 | ||
56a67834 | 2844 | return change; |
2b97eabc RP |
2845 | } |
2846 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2847 | ||
2848 | /** | |
2849 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2850 | * @kcontrol: mixer control | |
ac11a2b3 | 2851 | * @ucontrol: control element information |
2b97eabc RP |
2852 | * |
2853 | * Callback to get the value of a dapm enumerated double mixer control. | |
2854 | * | |
2855 | * Returns 0 for success. | |
2856 | */ | |
2857 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2858 | struct snd_ctl_elem_value *ucontrol) | |
2859 | { | |
ce0fc93a | 2860 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2b97eabc | 2861 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2862 | unsigned int reg_val, val; |
ce0fc93a | 2863 | int ret = 0; |
52765976 | 2864 | |
236aaa68 | 2865 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2866 | ret = soc_dapm_read(dapm, e->reg, ®_val); |
236aaa68 LPC |
2867 | else |
2868 | reg_val = dapm_kcontrol_get_value(kcontrol); | |
2e72f8e3 | 2869 | |
2e72f8e3 | 2870 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2871 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2872 | if (e->shift_l != e->shift_r) { |
2873 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2874 | val = snd_soc_enum_val_to_item(e, val); |
2875 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2876 | } |
2877 | ||
ce0fc93a | 2878 | return ret; |
2e72f8e3 | 2879 | } |
2b97eabc | 2880 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2881 | |
2882 | /** | |
2b97eabc | 2883 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2884 | * @kcontrol: mixer control |
2885 | * @ucontrol: control element information | |
2886 | * | |
2b97eabc | 2887 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2888 | * |
2889 | * Returns 0 for success. | |
2890 | */ | |
2b97eabc | 2891 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2892 | struct snd_ctl_elem_value *ucontrol) |
2893 | { | |
ce0fc93a LPC |
2894 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2895 | struct snd_soc_card *card = dapm->card; | |
74155556 | 2896 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2897 | unsigned int *item = ucontrol->value.enumerated.item; |
2898 | unsigned int val, change; | |
46f5822f | 2899 | unsigned int mask; |
97404f2e | 2900 | struct snd_soc_dapm_update update; |
52765976 | 2901 | int ret = 0; |
2e72f8e3 | 2902 | |
3727b496 | 2903 | if (item[0] >= e->items) |
2e72f8e3 | 2904 | return -EINVAL; |
3727b496 LPC |
2905 | |
2906 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2907 | mask = e->mask << e->shift_l; |
2908 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2909 | if (item[1] > e->items) |
2e72f8e3 | 2910 | return -EINVAL; |
3727b496 | 2911 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2912 | mask |= e->mask << e->shift_r; |
2913 | } | |
2914 | ||
3cd04343 | 2915 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2916 | |
236aaa68 | 2917 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2918 | change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 LPC |
2919 | else |
2920 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2921 | ||
fafd2176 | 2922 | if (change) { |
236aaa68 LPC |
2923 | if (e->reg != SND_SOC_NOPM) { |
2924 | update.kcontrol = kcontrol; | |
2925 | update.reg = e->reg; | |
2926 | update.mask = mask; | |
2927 | update.val = val; | |
2928 | card->update = &update; | |
2929 | } | |
1642e3d4 | 2930 | |
3727b496 | 2931 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 2932 | |
564c6504 | 2933 | card->update = NULL; |
fafd2176 | 2934 | } |
2e72f8e3 | 2935 | |
a73fb2df | 2936 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2937 | |
2938 | if (ret > 0) | |
2939 | soc_dpcm_runtime_update(card); | |
2940 | ||
97404f2e | 2941 | return change; |
2e72f8e3 | 2942 | } |
2b97eabc | 2943 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 2944 | |
8b37dbd2 MB |
2945 | /** |
2946 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2947 | * | |
2948 | * @kcontrol: mixer control | |
2949 | * @uinfo: control element information | |
2950 | * | |
2951 | * Callback to provide information about a pin switch control. | |
2952 | */ | |
2953 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2954 | struct snd_ctl_elem_info *uinfo) | |
2955 | { | |
2956 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2957 | uinfo->count = 1; | |
2958 | uinfo->value.integer.min = 0; | |
2959 | uinfo->value.integer.max = 1; | |
2960 | ||
2961 | return 0; | |
2962 | } | |
2963 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2964 | ||
2965 | /** | |
2966 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2967 | * | |
2968 | * @kcontrol: mixer control | |
2969 | * @ucontrol: Value | |
2970 | */ | |
2971 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2972 | struct snd_ctl_elem_value *ucontrol) | |
2973 | { | |
48a8c394 | 2974 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2975 | const char *pin = (const char *)kcontrol->private_value; |
2976 | ||
3cd04343 | 2977 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2978 | |
2979 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2980 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2981 | |
a73fb2df | 2982 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2983 | |
2984 | return 0; | |
2985 | } | |
2986 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2987 | ||
2988 | /** | |
2989 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2990 | * | |
2991 | * @kcontrol: mixer control | |
2992 | * @ucontrol: Value | |
2993 | */ | |
2994 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2995 | struct snd_ctl_elem_value *ucontrol) | |
2996 | { | |
48a8c394 | 2997 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2998 | const char *pin = (const char *)kcontrol->private_value; |
2999 | ||
8b37dbd2 | 3000 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3001 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3002 | else |
48a8c394 | 3003 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3004 | |
a73fb2df | 3005 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3006 | return 0; |
3007 | } | |
3008 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3009 | ||
5ba06fc9 MB |
3010 | static struct snd_soc_dapm_widget * |
3011 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3012 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3013 | { |
3014 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 3015 | const char *prefix; |
62ea874a | 3016 | int ret; |
2b97eabc RP |
3017 | |
3018 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3019 | return NULL; |
2b97eabc | 3020 | |
62ea874a MB |
3021 | switch (w->id) { |
3022 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3023 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3024 | if (IS_ERR(w->regulator)) { | |
3025 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3026 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3027 | w->name, ret); |
5ba06fc9 | 3028 | return NULL; |
62ea874a | 3029 | } |
8784c77a | 3030 | |
de9ba98b | 3031 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3032 | ret = regulator_allow_bypass(w->regulator, true); |
3033 | if (ret != 0) | |
3034 | dev_warn(w->dapm->dev, | |
30686c35 | 3035 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3036 | w->name, ret); |
3037 | } | |
62ea874a | 3038 | break; |
d7e7eb91 | 3039 | case snd_soc_dapm_clock_supply: |
165961ef | 3040 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3041 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3042 | if (IS_ERR(w->clk)) { |
3043 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3044 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3045 | w->name, ret); |
3046 | return NULL; | |
3047 | } | |
ec02995a MB |
3048 | #else |
3049 | return NULL; | |
3050 | #endif | |
d7e7eb91 | 3051 | break; |
62ea874a MB |
3052 | default: |
3053 | break; | |
3054 | } | |
2b97eabc | 3055 | |
94f99c87 LPC |
3056 | prefix = soc_dapm_prefix(dapm); |
3057 | if (prefix) | |
3058 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); | |
2b581074 LPC |
3059 | else |
3060 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3061 | ||
ead9b919 JN |
3062 | if (w->name == NULL) { |
3063 | kfree(w); | |
5ba06fc9 | 3064 | return NULL; |
ead9b919 | 3065 | } |
ead9b919 | 3066 | |
7ca3a18b MB |
3067 | switch (w->id) { |
3068 | case snd_soc_dapm_switch: | |
3069 | case snd_soc_dapm_mixer: | |
3070 | case snd_soc_dapm_mixer_named_ctl: | |
3071 | w->power_check = dapm_generic_check_power; | |
3072 | break; | |
3073 | case snd_soc_dapm_mux: | |
7ca3a18b MB |
3074 | w->power_check = dapm_generic_check_power; |
3075 | break; | |
4616274d | 3076 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3077 | w->power_check = dapm_adc_check_power; |
3078 | break; | |
4616274d | 3079 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3080 | w->power_check = dapm_dac_check_power; |
3081 | break; | |
63c69a6e MB |
3082 | case snd_soc_dapm_adc: |
3083 | case snd_soc_dapm_aif_out: | |
3084 | case snd_soc_dapm_dac: | |
3085 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3086 | case snd_soc_dapm_pga: |
3087 | case snd_soc_dapm_out_drv: | |
3088 | case snd_soc_dapm_input: | |
3089 | case snd_soc_dapm_output: | |
3090 | case snd_soc_dapm_micbias: | |
3091 | case snd_soc_dapm_spk: | |
3092 | case snd_soc_dapm_hp: | |
3093 | case snd_soc_dapm_mic: | |
3094 | case snd_soc_dapm_line: | |
c74184ed | 3095 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3096 | w->power_check = dapm_generic_check_power; |
3097 | break; | |
3098 | case snd_soc_dapm_supply: | |
62ea874a | 3099 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3100 | case snd_soc_dapm_clock_supply: |
57295073 | 3101 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3102 | w->power_check = dapm_supply_check_power; |
3103 | break; | |
3104 | default: | |
3105 | w->power_check = dapm_always_on_check_power; | |
3106 | break; | |
3107 | } | |
3108 | ||
ce6120cc LG |
3109 | w->dapm = dapm; |
3110 | w->codec = dapm->codec; | |
2b97eabc RP |
3111 | INIT_LIST_HEAD(&w->sources); |
3112 | INIT_LIST_HEAD(&w->sinks); | |
3113 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3114 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3115 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3116 | |
3117 | /* machine layer set ups unconnected pins and insertions */ | |
3118 | w->connected = 1; | |
5ba06fc9 | 3119 | return w; |
2b97eabc | 3120 | } |
2b97eabc | 3121 | |
4ba1327a MB |
3122 | /** |
3123 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3124 | * @dapm: DAPM context |
4ba1327a MB |
3125 | * @widget: widget array |
3126 | * @num: number of widgets | |
3127 | * | |
3128 | * Creates new DAPM controls based upon the templates. | |
3129 | * | |
3130 | * Returns 0 for success else error. | |
3131 | */ | |
ce6120cc | 3132 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3133 | const struct snd_soc_dapm_widget *widget, |
3134 | int num) | |
3135 | { | |
5ba06fc9 MB |
3136 | struct snd_soc_dapm_widget *w; |
3137 | int i; | |
60884c27 | 3138 | int ret = 0; |
4ba1327a | 3139 | |
a73fb2df | 3140 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3141 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3142 | w = snd_soc_dapm_new_control(dapm, widget); |
3143 | if (!w) { | |
f7d41ae8 | 3144 | dev_err(dapm->dev, |
5ba06fc9 MB |
3145 | "ASoC: Failed to create DAPM control %s\n", |
3146 | widget->name); | |
60884c27 DC |
3147 | ret = -ENOMEM; |
3148 | break; | |
b8b33cb5 | 3149 | } |
4ba1327a MB |
3150 | widget++; |
3151 | } | |
a73fb2df | 3152 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3153 | return ret; |
4ba1327a MB |
3154 | } |
3155 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3156 | ||
c74184ed MB |
3157 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3158 | struct snd_kcontrol *kcontrol, int event) | |
3159 | { | |
3160 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3161 | struct snd_soc_dai *source, *sink; | |
3162 | const struct snd_soc_pcm_stream *config = w->params; | |
3163 | struct snd_pcm_substream substream; | |
9747cec2 | 3164 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3165 | u64 fmt; |
3166 | int ret; | |
3167 | ||
bf4edea8 TI |
3168 | if (WARN_ON(!config) || |
3169 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3170 | return -EINVAL; | |
c74184ed MB |
3171 | |
3172 | /* We only support a single source and sink, pick the first */ | |
3173 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3174 | list_sink); | |
3175 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3176 | list_source); | |
3177 | ||
bf4edea8 TI |
3178 | if (WARN_ON(!source_p || !sink_p) || |
3179 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3180 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3181 | return -EINVAL; | |
c74184ed MB |
3182 | |
3183 | source = source_p->source->priv; | |
3184 | sink = sink_p->sink->priv; | |
3185 | ||
3186 | /* Be a little careful as we don't want to overflow the mask array */ | |
3187 | if (config->formats) { | |
3188 | fmt = ffs(config->formats) - 1; | |
3189 | } else { | |
30a6a1a4 | 3190 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3191 | config->formats); |
3192 | fmt = 0; | |
3193 | } | |
3194 | ||
3195 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3196 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3197 | if (!params) { | |
3198 | ret = -ENOMEM; | |
3199 | goto out; | |
3200 | } | |
3201 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3202 | |
9747cec2 | 3203 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3204 | config->rate_min; |
9747cec2 | 3205 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3206 | config->rate_max; |
3207 | ||
9747cec2 | 3208 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3209 | = config->channels_min; |
9747cec2 | 3210 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3211 | = config->channels_max; |
3212 | ||
3213 | memset(&substream, 0, sizeof(substream)); | |
3214 | ||
3215 | switch (event) { | |
3216 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3217 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3218 | ret = soc_dai_hw_params(&substream, params, source); | |
3219 | if (ret < 0) | |
3220 | goto out; | |
c74184ed | 3221 | |
93e6958a BC |
3222 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3223 | ret = soc_dai_hw_params(&substream, params, sink); | |
3224 | if (ret < 0) | |
3225 | goto out; | |
c74184ed MB |
3226 | break; |
3227 | ||
3228 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3229 | ret = snd_soc_dai_digital_mute(sink, 0, |
3230 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3231 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3232 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3233 | ret = 0; |
c74184ed MB |
3234 | break; |
3235 | ||
3236 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3237 | ret = snd_soc_dai_digital_mute(sink, 1, |
3238 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3239 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3240 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3241 | ret = 0; |
c74184ed MB |
3242 | break; |
3243 | ||
3244 | default: | |
a6ed0608 | 3245 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3246 | return -EINVAL; |
3247 | } | |
3248 | ||
9747cec2 MB |
3249 | out: |
3250 | kfree(params); | |
3251 | return ret; | |
c74184ed MB |
3252 | } |
3253 | ||
3254 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3255 | const struct snd_soc_pcm_stream *params, | |
3256 | struct snd_soc_dapm_widget *source, | |
3257 | struct snd_soc_dapm_widget *sink) | |
3258 | { | |
c74184ed MB |
3259 | struct snd_soc_dapm_widget template; |
3260 | struct snd_soc_dapm_widget *w; | |
3261 | size_t len; | |
3262 | char *link_name; | |
fe83897f | 3263 | int ret; |
c74184ed MB |
3264 | |
3265 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3266 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3267 | if (!link_name) | |
3268 | return -ENOMEM; | |
3269 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3270 | ||
3271 | memset(&template, 0, sizeof(template)); | |
3272 | template.reg = SND_SOC_NOPM; | |
3273 | template.id = snd_soc_dapm_dai_link; | |
3274 | template.name = link_name; | |
3275 | template.event = snd_soc_dai_link_event; | |
3276 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3277 | SND_SOC_DAPM_PRE_PMD; | |
3278 | ||
30a6a1a4 | 3279 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3280 | |
3281 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3282 | if (!w) { | |
30a6a1a4 | 3283 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3284 | link_name); |
3285 | return -ENOMEM; | |
3286 | } | |
3287 | ||
3288 | w->params = params; | |
3289 | ||
fe83897f LPC |
3290 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3291 | if (ret) | |
3292 | return ret; | |
3293 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); | |
c74184ed MB |
3294 | } |
3295 | ||
888df395 MB |
3296 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3297 | struct snd_soc_dai *dai) | |
2b97eabc | 3298 | { |
888df395 | 3299 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3300 | struct snd_soc_dapm_widget *w; |
3301 | ||
888df395 MB |
3302 | WARN_ON(dapm->dev != dai->dev); |
3303 | ||
3304 | memset(&template, 0, sizeof(template)); | |
3305 | template.reg = SND_SOC_NOPM; | |
3306 | ||
3307 | if (dai->driver->playback.stream_name) { | |
4616274d | 3308 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3309 | template.name = dai->driver->playback.stream_name; |
3310 | template.sname = dai->driver->playback.stream_name; | |
3311 | ||
30a6a1a4 | 3312 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3313 | template.name); |
3314 | ||
3315 | w = snd_soc_dapm_new_control(dapm, &template); | |
3316 | if (!w) { | |
30a6a1a4 | 3317 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3318 | dai->driver->playback.stream_name); |
298402a3 | 3319 | return -ENOMEM; |
888df395 MB |
3320 | } |
3321 | ||
3322 | w->priv = dai; | |
3323 | dai->playback_widget = w; | |
3324 | } | |
3325 | ||
3326 | if (dai->driver->capture.stream_name) { | |
4616274d | 3327 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3328 | template.name = dai->driver->capture.stream_name; |
3329 | template.sname = dai->driver->capture.stream_name; | |
3330 | ||
30a6a1a4 | 3331 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3332 | template.name); |
3333 | ||
3334 | w = snd_soc_dapm_new_control(dapm, &template); | |
3335 | if (!w) { | |
30a6a1a4 | 3336 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3337 | dai->driver->capture.stream_name); |
298402a3 | 3338 | return -ENOMEM; |
888df395 MB |
3339 | } |
3340 | ||
3341 | w->priv = dai; | |
3342 | dai->capture_widget = w; | |
3343 | } | |
3344 | ||
3345 | return 0; | |
3346 | } | |
3347 | ||
3348 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3349 | { | |
3350 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3351 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3352 | struct snd_soc_dai *dai; |
888df395 MB |
3353 | |
3354 | /* For each DAI widget... */ | |
3355 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3356 | switch (dai_w->id) { |
3357 | case snd_soc_dapm_dai_in: | |
3358 | case snd_soc_dapm_dai_out: | |
3359 | break; | |
3360 | default: | |
2b97eabc | 3361 | continue; |
4616274d | 3362 | } |
888df395 MB |
3363 | |
3364 | dai = dai_w->priv; | |
3365 | ||
3366 | /* ...find all widgets with the same stream and link them */ | |
3367 | list_for_each_entry(w, &card->widgets, list) { | |
3368 | if (w->dapm != dai_w->dapm) | |
3369 | continue; | |
3370 | ||
4616274d MB |
3371 | switch (w->id) { |
3372 | case snd_soc_dapm_dai_in: | |
3373 | case snd_soc_dapm_dai_out: | |
888df395 | 3374 | continue; |
4616274d MB |
3375 | default: |
3376 | break; | |
3377 | } | |
888df395 | 3378 | |
19c2c5f5 | 3379 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3380 | continue; |
3381 | ||
0f9bd7b1 LPC |
3382 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3383 | src = dai_w; | |
3384 | sink = w; | |
3385 | } else { | |
3386 | src = w; | |
3387 | sink = dai_w; | |
2b97eabc | 3388 | } |
0f9bd7b1 LPC |
3389 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3390 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3391 | } |
3392 | } | |
2b97eabc | 3393 | |
888df395 MB |
3394 | return 0; |
3395 | } | |
64a648c2 | 3396 | |
44ba2641 BC |
3397 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3398 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3399 | { |
44ba2641 | 3400 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3401 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3402 | int i; |
3403 | ||
44ba2641 BC |
3404 | for (i = 0; i < rtd->num_codecs; i++) { |
3405 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3406 | |
3407 | /* there is no point in connecting BE DAI links with dummies */ | |
3408 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3409 | snd_soc_dai_is_dummy(cpu_dai)) | |
3410 | continue; | |
3411 | ||
3412 | /* connect BE DAI playback if widgets are valid */ | |
3413 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3414 | source = cpu_dai->playback_widget; |
3415 | sink = codec_dai->playback_widget; | |
b893ea5f | 3416 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3417 | cpu_dai->component->name, source->name, |
3418 | codec_dai->component->name, sink->name); | |
b893ea5f | 3419 | |
9887c20b LPC |
3420 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3421 | NULL, NULL); | |
b893ea5f LG |
3422 | } |
3423 | ||
3424 | /* connect BE DAI capture if widgets are valid */ | |
3425 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3426 | source = codec_dai->capture_widget; |
3427 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3428 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3429 | codec_dai->component->name, source->name, |
3430 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3431 | |
9887c20b LPC |
3432 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3433 | NULL, NULL); | |
b893ea5f | 3434 | } |
b893ea5f LG |
3435 | } |
3436 | } | |
3437 | ||
c471fdd1 | 3438 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3439 | int event) |
2b97eabc | 3440 | { |
c471fdd1 | 3441 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3442 | |
c471fdd1 LPC |
3443 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3444 | w = dai->playback_widget; | |
3445 | else | |
3446 | w = dai->capture_widget; | |
fe360685 | 3447 | |
c471fdd1 LPC |
3448 | if (w) { |
3449 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3450 | |
3451 | switch (event) { | |
3452 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3453 | w->active = 1; |
d9b0951b LG |
3454 | break; |
3455 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3456 | w->active = 0; |
d9b0951b LG |
3457 | break; |
3458 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3459 | case SND_SOC_DAPM_STREAM_RESUME: | |
3460 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3461 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3462 | break; | |
3463 | } | |
3464 | } | |
c471fdd1 | 3465 | } |
d9b0951b | 3466 | |
44ba2641 BC |
3467 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3468 | { | |
3469 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3470 | int i; | |
3471 | ||
3472 | /* for each BE DAI link... */ | |
3473 | for (i = 0; i < card->num_rtd; i++) { | |
3474 | rtd = &card->rtd[i]; | |
3475 | ||
3476 | /* | |
3477 | * dynamic FE links have no fixed DAI mapping. | |
3478 | * CODEC<->CODEC links have no direct connection. | |
3479 | */ | |
3480 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3481 | continue; | |
3482 | ||
3483 | dapm_connect_dai_link_widgets(card, rtd); | |
3484 | } | |
3485 | } | |
3486 | ||
c471fdd1 LPC |
3487 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3488 | int event) | |
3489 | { | |
44ba2641 BC |
3490 | int i; |
3491 | ||
c471fdd1 | 3492 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3493 | for (i = 0; i < rtd->num_codecs; i++) |
3494 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3495 | |
95dd5cd6 | 3496 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3497 | } |
3498 | ||
3499 | /** | |
3500 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3501 | * @rtd: PCM runtime data | |
3502 | * @stream: stream name | |
3503 | * @event: stream event | |
3504 | * | |
3505 | * Sends a stream event to the dapm core. The core then makes any | |
3506 | * necessary widget power changes. | |
3507 | * | |
3508 | * Returns 0 for success else error. | |
3509 | */ | |
d9b0951b LG |
3510 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3511 | int event) | |
ce6120cc | 3512 | { |
a73fb2df | 3513 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3514 | |
3cd04343 | 3515 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3516 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3517 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3518 | } |
2b97eabc | 3519 | |
11391100 CK |
3520 | /** |
3521 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3522 | * @dapm: DAPM context | |
3523 | * @pin: pin name | |
3524 | * | |
3525 | * Enables input/output pin and its parents or children widgets iff there is | |
3526 | * a valid audio route and active audio stream. | |
3527 | * | |
3528 | * Requires external locking. | |
3529 | * | |
3530 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3531 | * do any widget power switching. | |
3532 | */ | |
3533 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3534 | const char *pin) | |
3535 | { | |
3536 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3537 | } | |
3538 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3539 | ||
2b97eabc | 3540 | /** |
a5302181 | 3541 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3542 | * @dapm: DAPM context |
a5302181 | 3543 | * @pin: pin name |
2b97eabc | 3544 | * |
74b8f955 | 3545 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3546 | * a valid audio route and active audio stream. |
11391100 | 3547 | * |
a5302181 LG |
3548 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3549 | * do any widget power switching. | |
2b97eabc | 3550 | */ |
ce6120cc | 3551 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3552 | { |
11391100 CK |
3553 | int ret; |
3554 | ||
3555 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3556 | ||
3557 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3558 | ||
3559 | mutex_unlock(&dapm->card->dapm_mutex); | |
3560 | ||
3561 | return ret; | |
a5302181 LG |
3562 | } |
3563 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3564 | |
da34183e | 3565 | /** |
11391100 | 3566 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3567 | * @dapm: DAPM context |
da34183e MB |
3568 | * @pin: pin name |
3569 | * | |
3570 | * Enables input/output pin regardless of any other state. This is | |
3571 | * intended for use with microphone bias supplies used in microphone | |
3572 | * jack detection. | |
3573 | * | |
11391100 CK |
3574 | * Requires external locking. |
3575 | * | |
da34183e MB |
3576 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3577 | * do any widget power switching. | |
3578 | */ | |
11391100 CK |
3579 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3580 | const char *pin) | |
da34183e | 3581 | { |
91a5fca4 | 3582 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3583 | |
91a5fca4 | 3584 | if (!w) { |
30a6a1a4 | 3585 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3586 | return -EINVAL; |
0d86733c MB |
3587 | } |
3588 | ||
30a6a1a4 | 3589 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3590 | w->connected = 1; |
3591 | w->force = 1; | |
75c1f891 | 3592 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3593 | |
91a5fca4 | 3594 | return 0; |
da34183e | 3595 | } |
11391100 CK |
3596 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3597 | ||
3598 | /** | |
3599 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3600 | * @dapm: DAPM context | |
3601 | * @pin: pin name | |
3602 | * | |
3603 | * Enables input/output pin regardless of any other state. This is | |
3604 | * intended for use with microphone bias supplies used in microphone | |
3605 | * jack detection. | |
3606 | * | |
3607 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3608 | * do any widget power switching. | |
3609 | */ | |
3610 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3611 | const char *pin) | |
3612 | { | |
3613 | int ret; | |
3614 | ||
3615 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3616 | ||
3617 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3618 | ||
3619 | mutex_unlock(&dapm->card->dapm_mutex); | |
3620 | ||
3621 | return ret; | |
3622 | } | |
da34183e MB |
3623 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3624 | ||
11391100 CK |
3625 | /** |
3626 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3627 | * @dapm: DAPM context | |
3628 | * @pin: pin name | |
3629 | * | |
3630 | * Disables input/output pin and its parents or children widgets. | |
3631 | * | |
3632 | * Requires external locking. | |
3633 | * | |
3634 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3635 | * do any widget power switching. | |
3636 | */ | |
3637 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3638 | const char *pin) | |
3639 | { | |
3640 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3641 | } | |
3642 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3643 | ||
a5302181 LG |
3644 | /** |
3645 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3646 | * @dapm: DAPM context |
a5302181 LG |
3647 | * @pin: pin name |
3648 | * | |
74b8f955 | 3649 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3650 | * |
a5302181 LG |
3651 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3652 | * do any widget power switching. | |
3653 | */ | |
ce6120cc LG |
3654 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3655 | const char *pin) | |
a5302181 | 3656 | { |
11391100 CK |
3657 | int ret; |
3658 | ||
3659 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3660 | ||
3661 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3662 | ||
3663 | mutex_unlock(&dapm->card->dapm_mutex); | |
3664 | ||
3665 | return ret; | |
2b97eabc | 3666 | } |
a5302181 | 3667 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3668 | |
11391100 CK |
3669 | /** |
3670 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3671 | * @dapm: DAPM context | |
3672 | * @pin: pin name | |
3673 | * | |
3674 | * Marks the specified pin as being not connected, disabling it along | |
3675 | * any parent or child widgets. At present this is identical to | |
3676 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3677 | * additional things such as disabling controls which only affect | |
3678 | * paths through the pin. | |
3679 | * | |
3680 | * Requires external locking. | |
3681 | * | |
3682 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3683 | * do any widget power switching. | |
3684 | */ | |
3685 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3686 | const char *pin) | |
3687 | { | |
3688 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3689 | } | |
3690 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3691 | ||
5817b52a MB |
3692 | /** |
3693 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3694 | * @dapm: DAPM context |
5817b52a MB |
3695 | * @pin: pin name |
3696 | * | |
3697 | * Marks the specified pin as being not connected, disabling it along | |
3698 | * any parent or child widgets. At present this is identical to | |
3699 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3700 | * additional things such as disabling controls which only affect | |
3701 | * paths through the pin. | |
3702 | * | |
3703 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3704 | * do any widget power switching. | |
3705 | */ | |
ce6120cc | 3706 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3707 | { |
11391100 CK |
3708 | int ret; |
3709 | ||
3710 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3711 | ||
3712 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3713 | ||
3714 | mutex_unlock(&dapm->card->dapm_mutex); | |
3715 | ||
3716 | return ret; | |
5817b52a MB |
3717 | } |
3718 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3719 | ||
eeec12bf | 3720 | /** |
a5302181 | 3721 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3722 | * @dapm: DAPM context |
a5302181 | 3723 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3724 | * |
a5302181 | 3725 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3726 | * |
a5302181 | 3727 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3728 | */ |
ce6120cc LG |
3729 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3730 | const char *pin) | |
eeec12bf | 3731 | { |
91a5fca4 | 3732 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3733 | |
91a5fca4 LPC |
3734 | if (w) |
3735 | return w->connected; | |
a68b38ad | 3736 | |
eeec12bf GG |
3737 | return 0; |
3738 | } | |
a5302181 | 3739 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3740 | |
1547aba9 MB |
3741 | /** |
3742 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3743 | * @dapm: DAPM context |
1547aba9 MB |
3744 | * @pin: audio signal pin endpoint (or start point) |
3745 | * | |
3746 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3747 | * system is disabled a path between two endpoints flagged as ignoring | |
3748 | * suspend will not be disabled. The path must already be enabled via | |
3749 | * normal means at suspend time, it will not be turned on if it was not | |
3750 | * already enabled. | |
3751 | */ | |
ce6120cc LG |
3752 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3753 | const char *pin) | |
1547aba9 | 3754 | { |
91a5fca4 | 3755 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3756 | |
91a5fca4 | 3757 | if (!w) { |
30a6a1a4 | 3758 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3759 | return -EINVAL; |
1547aba9 MB |
3760 | } |
3761 | ||
91a5fca4 LPC |
3762 | w->ignore_suspend = 1; |
3763 | ||
3764 | return 0; | |
1547aba9 MB |
3765 | } |
3766 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3767 | ||
1633281b SW |
3768 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3769 | struct snd_soc_dapm_widget *w) | |
3770 | { | |
3771 | struct snd_soc_dapm_path *p; | |
3772 | ||
3773 | list_for_each_entry(p, &card->paths, list) { | |
3774 | if ((p->source == w) || (p->sink == w)) { | |
3775 | dev_dbg(card->dev, | |
3776 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3777 | p->source->name, p->source->id, p->source->dapm, | |
3778 | p->sink->name, p->sink->id, p->sink->dapm); | |
3779 | ||
3780 | /* Connected to something other than the codec */ | |
3781 | if (p->source->dapm != p->sink->dapm) | |
3782 | return true; | |
3783 | /* | |
3784 | * Loopback connection from codec external pin to | |
3785 | * codec external pin | |
3786 | */ | |
3787 | if (p->sink->id == snd_soc_dapm_input) { | |
3788 | switch (p->source->id) { | |
3789 | case snd_soc_dapm_output: | |
3790 | case snd_soc_dapm_micbias: | |
3791 | return true; | |
3792 | default: | |
3793 | break; | |
3794 | } | |
3795 | } | |
3796 | } | |
3797 | } | |
3798 | ||
3799 | return false; | |
3800 | } | |
3801 | ||
3802 | /** | |
7df37884 LPC |
3803 | * snd_soc_dapm_auto_nc_pins - call snd_soc_dapm_nc_pin for unused pins |
3804 | * @card: The card whose pins should be processed | |
1633281b | 3805 | * |
7df37884 LPC |
3806 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the card |
3807 | * which are unused. Pins are used if they are connected externally to a | |
3808 | * component, whether that be to some other device, or a loop-back connection to | |
3809 | * the component itself. | |
1633281b | 3810 | */ |
7df37884 | 3811 | void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card) |
1633281b | 3812 | { |
1633281b SW |
3813 | struct snd_soc_dapm_widget *w; |
3814 | ||
7df37884 | 3815 | dev_dbg(card->dev, "ASoC: Auto NC: DAPMs: card:%p\n", &card->dapm); |
1633281b SW |
3816 | |
3817 | list_for_each_entry(w, &card->widgets, list) { | |
1633281b SW |
3818 | switch (w->id) { |
3819 | case snd_soc_dapm_input: | |
3820 | case snd_soc_dapm_output: | |
3821 | case snd_soc_dapm_micbias: | |
7df37884 | 3822 | dev_dbg(card->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3823 | w->name); |
3824 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
7df37884 | 3825 | dev_dbg(card->dev, |
1633281b | 3826 | "... Not in map; disabling\n"); |
7df37884 | 3827 | snd_soc_dapm_nc_pin(w->dapm, w->name); |
1633281b SW |
3828 | } |
3829 | break; | |
3830 | default: | |
3831 | break; | |
3832 | } | |
3833 | } | |
3834 | } | |
3835 | ||
2b97eabc RP |
3836 | /** |
3837 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3838 | * @dapm: DAPM context |
2b97eabc RP |
3839 | * |
3840 | * Free all dapm widgets and resources. | |
3841 | */ | |
ce6120cc | 3842 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3843 | { |
ce6120cc | 3844 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3845 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3846 | dapm_free_widgets(dapm); |
7be31be8 | 3847 | list_del(&dapm->list); |
2b97eabc RP |
3848 | } |
3849 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3850 | ||
57996358 | 3851 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 3852 | { |
01005a72 | 3853 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3854 | struct snd_soc_dapm_widget *w; |
3855 | LIST_HEAD(down_list); | |
3856 | int powerdown = 0; | |
3857 | ||
01005a72 LG |
3858 | mutex_lock(&card->dapm_mutex); |
3859 | ||
97c866de JN |
3860 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3861 | if (w->dapm != dapm) | |
3862 | continue; | |
51737470 | 3863 | if (w->power) { |
828a842f | 3864 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3865 | w->power = 0; |
51737470 MB |
3866 | powerdown = 1; |
3867 | } | |
3868 | } | |
3869 | ||
3870 | /* If there were no widgets to power down we're already in | |
3871 | * standby. | |
3872 | */ | |
3873 | if (powerdown) { | |
7679e42e MB |
3874 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3875 | snd_soc_dapm_set_bias_level(dapm, | |
3876 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3877 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3878 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3879 | snd_soc_dapm_set_bias_level(dapm, | |
3880 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3881 | } |
01005a72 LG |
3882 | |
3883 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3884 | } |
3885 | ||
3886 | /* | |
3887 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3888 | */ | |
3889 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3890 | { | |
57996358 | 3891 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3892 | |
57996358 | 3893 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
3894 | if (dapm != &card->dapm) { |
3895 | soc_dapm_shutdown_dapm(dapm); | |
3896 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
3897 | snd_soc_dapm_set_bias_level(dapm, | |
3898 | SND_SOC_BIAS_OFF); | |
3899 | } | |
ce6120cc | 3900 | } |
17282ba4 XX |
3901 | |
3902 | soc_dapm_shutdown_dapm(&card->dapm); | |
3903 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
3904 | snd_soc_dapm_set_bias_level(&card->dapm, | |
3905 | SND_SOC_BIAS_OFF); | |
51737470 MB |
3906 | } |
3907 | ||
2b97eabc | 3908 | /* Module information */ |
d331124d | 3909 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3910 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3911 | MODULE_LICENSE("GPL"); |