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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 | ||
8be4da29 | 162 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 163 | { |
e2d32ff6 MB |
164 | struct snd_soc_dapm_widget *w; |
165 | ||
166 | mutex_lock(&card->dapm_mutex); | |
167 | ||
168 | list_for_each_entry(w, &card->widgets, list) { | |
8be4da29 LPC |
169 | if (w->is_sink || w->is_source) |
170 | dapm_mark_dirty(w, "Rechecking endpoints"); | |
e2d32ff6 MB |
171 | } |
172 | ||
173 | mutex_unlock(&card->dapm_mutex); | |
174 | } | |
8be4da29 | 175 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 176 | |
2b97eabc | 177 | /* create a new dapm widget */ |
88cb4290 | 178 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
179 | const struct snd_soc_dapm_widget *_widget) |
180 | { | |
88cb4290 | 181 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
182 | } |
183 | ||
e84357f7 | 184 | struct dapm_kcontrol_data { |
cf7c1de2 | 185 | unsigned int value; |
57295073 | 186 | struct snd_soc_dapm_widget *widget; |
5106b92f | 187 | struct list_head paths; |
2c75bdf3 | 188 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
189 | }; |
190 | ||
191 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
192 | struct snd_kcontrol *kcontrol) | |
193 | { | |
194 | struct dapm_kcontrol_data *data; | |
57295073 | 195 | struct soc_mixer_control *mc; |
e84357f7 | 196 | |
2c75bdf3 | 197 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
198 | if (!data) { |
199 | dev_err(widget->dapm->dev, | |
200 | "ASoC: can't allocate kcontrol data for %s\n", | |
201 | widget->name); | |
202 | return -ENOMEM; | |
203 | } | |
204 | ||
5106b92f | 205 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 206 | |
57295073 LPC |
207 | switch (widget->id) { |
208 | case snd_soc_dapm_switch: | |
209 | case snd_soc_dapm_mixer: | |
210 | case snd_soc_dapm_mixer_named_ctl: | |
211 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
212 | ||
213 | if (mc->autodisable) { | |
214 | struct snd_soc_dapm_widget template; | |
215 | ||
216 | memset(&template, 0, sizeof(template)); | |
217 | template.reg = mc->reg; | |
218 | template.mask = (1 << fls(mc->max)) - 1; | |
219 | template.shift = mc->shift; | |
220 | if (mc->invert) | |
221 | template.off_val = mc->max; | |
222 | else | |
223 | template.off_val = 0; | |
224 | template.on_val = template.off_val; | |
225 | template.id = snd_soc_dapm_kcontrol; | |
226 | template.name = kcontrol->id.name; | |
227 | ||
2daabd78 LPC |
228 | data->value = template.on_val; |
229 | ||
57295073 LPC |
230 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
231 | &template); | |
232 | if (!data->widget) { | |
233 | kfree(data); | |
234 | return -ENOMEM; | |
235 | } | |
236 | } | |
237 | break; | |
238 | default: | |
239 | break; | |
240 | } | |
241 | ||
e84357f7 LPC |
242 | kcontrol->private_data = data; |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
247 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
248 | { | |
249 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 250 | kfree(data->wlist); |
e84357f7 LPC |
251 | kfree(data); |
252 | } | |
253 | ||
254 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
255 | const struct snd_kcontrol *kcontrol) | |
256 | { | |
257 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
258 | ||
2c75bdf3 | 259 | return data->wlist; |
e84357f7 LPC |
260 | } |
261 | ||
262 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
263 | struct snd_soc_dapm_widget *widget) | |
264 | { | |
265 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
266 | struct snd_soc_dapm_widget_list *new_wlist; |
267 | unsigned int n; | |
e84357f7 | 268 | |
2c75bdf3 LPC |
269 | if (data->wlist) |
270 | n = data->wlist->num_widgets + 1; | |
271 | else | |
272 | n = 1; | |
273 | ||
274 | new_wlist = krealloc(data->wlist, | |
275 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
276 | if (!new_wlist) | |
e84357f7 LPC |
277 | return -ENOMEM; |
278 | ||
2c75bdf3 LPC |
279 | new_wlist->widgets[n - 1] = widget; |
280 | new_wlist->num_widgets = n; | |
e84357f7 | 281 | |
2c75bdf3 | 282 | data->wlist = new_wlist; |
e84357f7 LPC |
283 | |
284 | return 0; | |
285 | } | |
286 | ||
5106b92f LPC |
287 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
288 | struct snd_soc_dapm_path *path) | |
289 | { | |
290 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
291 | ||
292 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
293 | |
294 | if (data->widget) { | |
295 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
296 | path->source, NULL, NULL); | |
297 | } | |
298 | } | |
299 | ||
300 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
301 | { | |
302 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
303 | ||
304 | if (!data->widget) | |
305 | return true; | |
306 | ||
307 | return data->widget->power; | |
5106b92f LPC |
308 | } |
309 | ||
310 | static struct list_head *dapm_kcontrol_get_path_list( | |
311 | const struct snd_kcontrol *kcontrol) | |
312 | { | |
313 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
314 | ||
315 | return &data->paths; | |
316 | } | |
317 | ||
318 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
319 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
320 | list_kcontrol) | |
321 | ||
5dc0158a | 322 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
323 | { |
324 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
325 | ||
326 | return data->value; | |
327 | } | |
5dc0158a | 328 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
329 | |
330 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
331 | unsigned int value) | |
332 | { | |
333 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
334 | ||
335 | if (data->value == value) | |
336 | return false; | |
337 | ||
57295073 LPC |
338 | if (data->widget) |
339 | data->widget->on_val = value; | |
340 | ||
cf7c1de2 LPC |
341 | data->value = value; |
342 | ||
343 | return true; | |
344 | } | |
345 | ||
ce0fc93a LPC |
346 | /** |
347 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
348 | * kcontrol | |
349 | * @kcontrol: The kcontrol | |
350 | * | |
351 | * Note: This function must only be used on kcontrols that are known to have | |
352 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
353 | */ | |
354 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
355 | struct snd_kcontrol *kcontrol) | |
356 | { | |
357 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
358 | } | |
359 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
360 | ||
eee5d7f9 LPC |
361 | /** |
362 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
363 | * @kcontrol: The kcontrol | |
364 | */ | |
365 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
366 | { | |
ce0fc93a | 367 | return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); |
eee5d7f9 LPC |
368 | } |
369 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
370 | ||
6c120e19 LG |
371 | static void dapm_reset(struct snd_soc_card *card) |
372 | { | |
373 | struct snd_soc_dapm_widget *w; | |
374 | ||
f9fa2b18 MB |
375 | lockdep_assert_held(&card->dapm_mutex); |
376 | ||
6c120e19 LG |
377 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
378 | ||
379 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 380 | w->new_power = w->power; |
6c120e19 LG |
381 | w->power_checked = false; |
382 | w->inputs = -1; | |
383 | w->outputs = -1; | |
384 | } | |
385 | } | |
386 | ||
94f99c87 LPC |
387 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
388 | { | |
389 | if (!dapm->component) | |
390 | return NULL; | |
391 | return dapm->component->name_prefix; | |
392 | } | |
393 | ||
ce0fc93a | 394 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 395 | unsigned int *value) |
0445bdf4 | 396 | { |
ce0fc93a | 397 | if (!dapm->component) |
e2c330b9 | 398 | return -EIO; |
ce0fc93a | 399 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
400 | } |
401 | ||
ce0fc93a | 402 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 403 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 404 | { |
ce0fc93a | 405 | if (!dapm->component) |
e2c330b9 | 406 | return -EIO; |
ce0fc93a | 407 | return snd_soc_component_update_bits_async(dapm->component, reg, |
e2c330b9 | 408 | mask, value); |
49575fb5 LG |
409 | } |
410 | ||
ce0fc93a LPC |
411 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
412 | int reg, unsigned int mask, unsigned int value) | |
413 | { | |
414 | if (!dapm->component) | |
415 | return -EIO; | |
416 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
417 | } | |
418 | ||
eb270e98 MB |
419 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
420 | { | |
e2c330b9 LPC |
421 | if (dapm->component) |
422 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
423 | } |
424 | ||
452c5eaa MB |
425 | /** |
426 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 427 | * @dapm: DAPM context |
452c5eaa MB |
428 | * @level: level to configure |
429 | * | |
430 | * Configure the bias (power) levels for the SoC audio device. | |
431 | * | |
432 | * Returns 0 for success else error. | |
433 | */ | |
ed5a4c47 | 434 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 435 | enum snd_soc_bias_level level) |
452c5eaa | 436 | { |
ed5a4c47 | 437 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
438 | int ret = 0; |
439 | ||
84e90930 MB |
440 | trace_snd_soc_bias_level_start(card, level); |
441 | ||
f0fba2ad | 442 | if (card && card->set_bias_level) |
d4c6005f | 443 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
444 | if (ret != 0) |
445 | goto out; | |
446 | ||
68f831c2 LPC |
447 | if (dapm->set_bias_level) |
448 | ret = dapm->set_bias_level(dapm, level); | |
449 | else if (!card || dapm != &card->dapm) | |
4123128e LG |
450 | dapm->bias_level = level; |
451 | ||
171ec6b0 MB |
452 | if (ret != 0) |
453 | goto out; | |
454 | ||
455 | if (card && card->set_bias_level_post) | |
d4c6005f | 456 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 457 | out: |
84e90930 MB |
458 | trace_snd_soc_bias_level_done(card, level); |
459 | ||
452c5eaa MB |
460 | return ret; |
461 | } | |
462 | ||
74b8f955 | 463 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 464 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
5fe5b767 | 465 | struct snd_soc_dapm_path *path, const char *control_name) |
2b97eabc | 466 | { |
5fe5b767 | 467 | const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0]; |
2b97eabc | 468 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 469 | unsigned int val, item; |
2b97eabc | 470 | int i; |
24ff33ac | 471 | |
234c0b8f | 472 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 473 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
474 | val = (val >> e->shift_l) & e->mask; |
475 | item = snd_soc_enum_val_to_item(e, val); | |
476 | } else { | |
24ff33ac DP |
477 | /* since a virtual mux has no backing registers to |
478 | * decide which path to connect, it will try to match | |
479 | * with the first enumeration. This is to ensure | |
480 | * that the default mux choice (the first) will be | |
481 | * correctly powered up during initialization. | |
482 | */ | |
234c0b8f | 483 | item = 0; |
24ff33ac | 484 | } |
2e72f8e3 | 485 | |
9a8d38db | 486 | for (i = 0; i < e->items; i++) { |
2b97eabc | 487 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 488 | path->name = e->texts[i]; |
234c0b8f LPC |
489 | if (i == item) |
490 | path->connect = 1; | |
491 | else | |
492 | path->connect = 0; | |
2b97eabc RP |
493 | return 0; |
494 | } | |
495 | } | |
496 | ||
497 | return -ENODEV; | |
498 | } | |
499 | ||
234c0b8f | 500 | /* set up initial codec paths */ |
5fe5b767 | 501 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
502 | { |
503 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 504 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
505 | unsigned int reg = mc->reg; |
506 | unsigned int shift = mc->shift; | |
507 | unsigned int max = mc->max; | |
508 | unsigned int mask = (1 << fls(max)) - 1; | |
509 | unsigned int invert = mc->invert; | |
510 | unsigned int val; | |
511 | ||
512 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 513 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
514 | val = (val >> shift) & mask; |
515 | if (invert) | |
516 | val = max - val; | |
517 | p->connect = !!val; | |
518 | } else { | |
519 | p->connect = 0; | |
520 | } | |
521 | } | |
522 | ||
74b8f955 | 523 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 524 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
525 | struct snd_soc_dapm_path *path, const char *control_name) |
526 | { | |
527 | int i; | |
528 | ||
529 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
530 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
531 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
532 | path->name = path->sink->kcontrol_news[i].name; | |
533 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
534 | return 0; |
535 | } | |
536 | } | |
537 | return -ENODEV; | |
538 | } | |
539 | ||
af46800b | 540 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 541 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
542 | const struct snd_kcontrol_new *kcontrol_new, |
543 | struct snd_kcontrol **kcontrol) | |
544 | { | |
545 | struct snd_soc_dapm_widget *w; | |
546 | int i; | |
547 | ||
548 | *kcontrol = NULL; | |
549 | ||
550 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
551 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
552 | continue; | |
af46800b SW |
553 | for (i = 0; i < w->num_kcontrols; i++) { |
554 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
555 | if (w->kcontrols) | |
556 | *kcontrol = w->kcontrols[i]; | |
557 | return 1; | |
558 | } | |
559 | } | |
560 | } | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
85762e71 SW |
565 | /* |
566 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
567 | * create it. Either way, add the widget into the control's widget list | |
568 | */ | |
569 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 570 | int kci) |
2b97eabc | 571 | { |
4b80b8c2 | 572 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 573 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 574 | const char *prefix; |
85762e71 SW |
575 | size_t prefix_len; |
576 | int shared; | |
577 | struct snd_kcontrol *kcontrol; | |
85762e71 | 578 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 579 | char *long_name = NULL; |
85762e71 | 580 | const char *name; |
e5092c96 | 581 | int ret = 0; |
efb7ac3f | 582 | |
94f99c87 | 583 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
584 | if (prefix) |
585 | prefix_len = strlen(prefix) + 1; | |
586 | else | |
587 | prefix_len = 0; | |
588 | ||
85762e71 SW |
589 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
590 | &kcontrol); | |
2b97eabc | 591 | |
85762e71 SW |
592 | if (!kcontrol) { |
593 | if (shared) { | |
594 | wname_in_long_name = false; | |
595 | kcname_in_long_name = true; | |
596 | } else { | |
597 | switch (w->id) { | |
598 | case snd_soc_dapm_switch: | |
599 | case snd_soc_dapm_mixer: | |
600 | wname_in_long_name = true; | |
601 | kcname_in_long_name = true; | |
602 | break; | |
603 | case snd_soc_dapm_mixer_named_ctl: | |
604 | wname_in_long_name = false; | |
605 | kcname_in_long_name = true; | |
606 | break; | |
607 | case snd_soc_dapm_mux: | |
85762e71 SW |
608 | wname_in_long_name = true; |
609 | kcname_in_long_name = false; | |
610 | break; | |
611 | default: | |
85762e71 | 612 | return -EINVAL; |
82cd8764 | 613 | } |
85762e71 SW |
614 | } |
615 | ||
616 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
617 | /* |
618 | * The control will get a prefix from the control | |
619 | * creation process but we're also using the same | |
620 | * prefix for widgets so cut the prefix off the | |
621 | * front of the widget name. | |
ca9c1aae | 622 | */ |
2b581074 | 623 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
624 | w->name + prefix_len, |
625 | w->kcontrol_news[kci].name); | |
e84357f7 | 626 | if (long_name == NULL) |
2b581074 | 627 | return -ENOMEM; |
85762e71 SW |
628 | |
629 | name = long_name; | |
630 | } else if (wname_in_long_name) { | |
631 | long_name = NULL; | |
632 | name = w->name + prefix_len; | |
633 | } else { | |
634 | long_name = NULL; | |
635 | name = w->kcontrol_news[kci].name; | |
636 | } | |
ca9c1aae | 637 | |
e84357f7 | 638 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 639 | prefix); |
e5092c96 DM |
640 | if (!kcontrol) { |
641 | ret = -ENOMEM; | |
642 | goto exit_free; | |
643 | } | |
644 | ||
9356e9d5 | 645 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
646 | |
647 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
648 | if (ret) { | |
649 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 650 | goto exit_free; |
e84357f7 LPC |
651 | } |
652 | ||
85762e71 SW |
653 | ret = snd_ctl_add(card, kcontrol); |
654 | if (ret < 0) { | |
655 | dev_err(dapm->dev, | |
656 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
657 | w->name, name, ret); | |
e5092c96 | 658 | goto exit_free; |
85762e71 | 659 | } |
85762e71 | 660 | } |
2b97eabc | 661 | |
2c75bdf3 | 662 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
663 | if (ret == 0) |
664 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 665 | |
e5092c96 DM |
666 | exit_free: |
667 | kfree(long_name); | |
ca9c1aae | 668 | |
e5092c96 | 669 | return ret; |
85762e71 | 670 | } |
219b93f5 | 671 | |
85762e71 SW |
672 | /* create new dapm mixer control */ |
673 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
674 | { | |
675 | int i, ret; | |
676 | struct snd_soc_dapm_path *path; | |
677 | ||
678 | /* add kcontrol */ | |
679 | for (i = 0; i < w->num_kcontrols; i++) { | |
680 | /* match name */ | |
681 | list_for_each_entry(path, &w->sources, list_sink) { | |
682 | /* mixer/mux paths name must match control name */ | |
683 | if (path->name != (char *)w->kcontrol_news[i].name) | |
684 | continue; | |
685 | ||
686 | if (w->kcontrols[i]) { | |
5106b92f | 687 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 688 | continue; |
2b97eabc | 689 | } |
85762e71 | 690 | |
946d92a1 | 691 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
692 | if (ret < 0) |
693 | return ret; | |
946d92a1 MB |
694 | |
695 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
696 | } |
697 | } | |
85762e71 SW |
698 | |
699 | return 0; | |
2b97eabc RP |
700 | } |
701 | ||
702 | /* create new dapm mux control */ | |
4b80b8c2 | 703 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 704 | { |
4b80b8c2 | 705 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 706 | struct snd_soc_dapm_path *path; |
af46800b | 707 | int ret; |
2b97eabc | 708 | |
af46800b SW |
709 | if (w->num_kcontrols != 1) { |
710 | dev_err(dapm->dev, | |
30a6a1a4 | 711 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 712 | w->name); |
2b97eabc RP |
713 | return -EINVAL; |
714 | } | |
715 | ||
fe581391 | 716 | if (list_empty(&w->sources)) { |
85762e71 SW |
717 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
718 | return -EINVAL; | |
af46800b | 719 | } |
ce6120cc | 720 | |
946d92a1 | 721 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
722 | if (ret < 0) |
723 | return ret; | |
fad59888 | 724 | |
98407efc LPC |
725 | list_for_each_entry(path, &w->sources, list_sink) { |
726 | if (path->name) | |
727 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
728 | } | |
2b97eabc | 729 | |
af46800b | 730 | return 0; |
2b97eabc RP |
731 | } |
732 | ||
733 | /* create new dapm volume control */ | |
4b80b8c2 | 734 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 735 | { |
a6c65736 | 736 | if (w->num_kcontrols) |
f7d41ae8 | 737 | dev_err(w->dapm->dev, |
30a6a1a4 | 738 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 739 | |
a6c65736 | 740 | return 0; |
2b97eabc RP |
741 | } |
742 | ||
9949788b MB |
743 | /* We implement power down on suspend by checking the power state of |
744 | * the ALSA card - when we are suspending the ALSA state for the card | |
745 | * is set to D3. | |
746 | */ | |
747 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
748 | { | |
12ea2c78 | 749 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 750 | |
f0fba2ad | 751 | switch (level) { |
9949788b MB |
752 | case SNDRV_CTL_POWER_D3hot: |
753 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 754 | if (widget->ignore_suspend) |
30a6a1a4 | 755 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 756 | widget->name); |
1547aba9 | 757 | return widget->ignore_suspend; |
9949788b MB |
758 | default: |
759 | return 1; | |
760 | } | |
761 | } | |
762 | ||
ec2e3031 LG |
763 | /* add widget to list if it's not already in the list */ |
764 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
765 | struct snd_soc_dapm_widget *w) | |
766 | { | |
767 | struct snd_soc_dapm_widget_list *wlist; | |
768 | int wlistsize, wlistentries, i; | |
769 | ||
770 | if (*list == NULL) | |
771 | return -EINVAL; | |
772 | ||
773 | wlist = *list; | |
774 | ||
775 | /* is this widget already in the list */ | |
776 | for (i = 0; i < wlist->num_widgets; i++) { | |
777 | if (wlist->widgets[i] == w) | |
778 | return 0; | |
779 | } | |
780 | ||
781 | /* allocate some new space */ | |
782 | wlistentries = wlist->num_widgets + 1; | |
783 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
784 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
785 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
786 | if (*list == NULL) { | |
30a6a1a4 | 787 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
788 | w->name); |
789 | return -ENOMEM; | |
790 | } | |
791 | wlist = *list; | |
792 | ||
793 | /* insert the widget */ | |
30a6a1a4 | 794 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
795 | w->name, wlist->num_widgets); |
796 | ||
797 | wlist->widgets[wlist->num_widgets] = w; | |
798 | wlist->num_widgets++; | |
799 | return 1; | |
800 | } | |
801 | ||
2b97eabc RP |
802 | /* |
803 | * Recursively check for a completed path to an active or physically connected | |
804 | * output widget. Returns number of complete paths. | |
805 | */ | |
ec2e3031 LG |
806 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
807 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
808 | { |
809 | struct snd_soc_dapm_path *path; | |
810 | int con = 0; | |
811 | ||
024dc078 MB |
812 | if (widget->outputs >= 0) |
813 | return widget->outputs; | |
814 | ||
de02d078 MB |
815 | DAPM_UPDATE_STAT(widget, path_checks); |
816 | ||
6dd98b0a LPC |
817 | if (widget->is_sink && widget->connected) { |
818 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
819 | return widget->outputs; | |
2b97eabc RP |
820 | } |
821 | ||
822 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
823 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
824 | ||
c1862c8b | 825 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
826 | continue; |
827 | ||
8af294b4 MB |
828 | if (path->walking) |
829 | return 1; | |
830 | ||
ec2e3031 LG |
831 | trace_snd_soc_dapm_output_path(widget, path); |
832 | ||
7ddd4cd5 | 833 | if (path->connect) { |
8af294b4 | 834 | path->walking = 1; |
ec2e3031 LG |
835 | |
836 | /* do we need to add this widget to the list ? */ | |
837 | if (list) { | |
838 | int err; | |
839 | err = dapm_list_add_widget(list, path->sink); | |
840 | if (err < 0) { | |
30a6a1a4 LG |
841 | dev_err(widget->dapm->dev, |
842 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 843 | widget->name); |
8af294b4 | 844 | path->walking = 0; |
ec2e3031 LG |
845 | return con; |
846 | } | |
847 | } | |
848 | ||
849 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
850 | |
851 | path->walking = 0; | |
2b97eabc RP |
852 | } |
853 | } | |
854 | ||
024dc078 MB |
855 | widget->outputs = con; |
856 | ||
2b97eabc RP |
857 | return con; |
858 | } | |
859 | ||
860 | /* | |
861 | * Recursively check for a completed path to an active or physically connected | |
862 | * input widget. Returns number of complete paths. | |
863 | */ | |
ec2e3031 LG |
864 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
865 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
866 | { |
867 | struct snd_soc_dapm_path *path; | |
868 | int con = 0; | |
869 | ||
024dc078 MB |
870 | if (widget->inputs >= 0) |
871 | return widget->inputs; | |
872 | ||
de02d078 MB |
873 | DAPM_UPDATE_STAT(widget, path_checks); |
874 | ||
6dd98b0a LPC |
875 | if (widget->is_source && widget->connected) { |
876 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
877 | return widget->inputs; | |
2b97eabc RP |
878 | } |
879 | ||
880 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
881 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
882 | ||
c1862c8b | 883 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
884 | continue; |
885 | ||
8af294b4 MB |
886 | if (path->walking) |
887 | return 1; | |
888 | ||
ec2e3031 LG |
889 | trace_snd_soc_dapm_input_path(widget, path); |
890 | ||
7ddd4cd5 | 891 | if (path->connect) { |
8af294b4 | 892 | path->walking = 1; |
ec2e3031 LG |
893 | |
894 | /* do we need to add this widget to the list ? */ | |
895 | if (list) { | |
896 | int err; | |
90c6ce0d | 897 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 898 | if (err < 0) { |
30a6a1a4 LG |
899 | dev_err(widget->dapm->dev, |
900 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 901 | widget->name); |
8af294b4 | 902 | path->walking = 0; |
ec2e3031 LG |
903 | return con; |
904 | } | |
905 | } | |
906 | ||
907 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
908 | |
909 | path->walking = 0; | |
2b97eabc RP |
910 | } |
911 | } | |
912 | ||
024dc078 MB |
913 | widget->inputs = con; |
914 | ||
2b97eabc RP |
915 | return con; |
916 | } | |
917 | ||
ec2e3031 LG |
918 | /** |
919 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
920 | * @dai: the soc DAI. | |
921 | * @stream: stream direction. | |
922 | * @list: list of active widgets for this stream. | |
923 | * | |
924 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
925 | * the initial stream specified by name. This takes into account | |
926 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
927 | * | |
928 | * Returns the number of valid paths or negative error. | |
929 | */ | |
930 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
931 | struct snd_soc_dapm_widget_list **list) | |
932 | { | |
933 | struct snd_soc_card *card = dai->card; | |
934 | int paths; | |
935 | ||
936 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
937 | dapm_reset(card); | |
938 | ||
130897ac | 939 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
ec2e3031 | 940 | paths = is_connected_output_ep(dai->playback_widget, list); |
130897ac | 941 | else |
d298caae | 942 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
943 | |
944 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
945 | mutex_unlock(&card->dapm_mutex); |
946 | ||
947 | return paths; | |
948 | } | |
949 | ||
62ea874a MB |
950 | /* |
951 | * Handler for regulator supply widget. | |
952 | */ | |
953 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
954 | struct snd_kcontrol *kcontrol, int event) | |
955 | { | |
c05b84d1 MB |
956 | int ret; |
957 | ||
eb270e98 MB |
958 | soc_dapm_async_complete(w->dapm); |
959 | ||
c05b84d1 | 960 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 961 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 962 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
963 | if (ret != 0) |
964 | dev_warn(w->dapm->dev, | |
30686c35 | 965 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
966 | w->name, ret); |
967 | } | |
968 | ||
a3cc056b | 969 | return regulator_enable(w->regulator); |
c05b84d1 | 970 | } else { |
de9ba98b | 971 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 972 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
973 | if (ret != 0) |
974 | dev_warn(w->dapm->dev, | |
30686c35 | 975 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
976 | w->name, ret); |
977 | } | |
978 | ||
a3cc056b | 979 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 980 | } |
62ea874a MB |
981 | } |
982 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
983 | ||
d7e7eb91 OL |
984 | /* |
985 | * Handler for clock supply widget. | |
986 | */ | |
987 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
988 | struct snd_kcontrol *kcontrol, int event) | |
989 | { | |
990 | if (!w->clk) | |
991 | return -EIO; | |
992 | ||
eb270e98 MB |
993 | soc_dapm_async_complete(w->dapm); |
994 | ||
ec02995a | 995 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 996 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 997 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 998 | } else { |
37c1b927 | 999 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1000 | return 0; |
1001 | } | |
ec02995a | 1002 | #endif |
98b3cf12 | 1003 | return 0; |
d7e7eb91 OL |
1004 | } |
1005 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1006 | ||
d805002b MB |
1007 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1008 | { | |
9b8a83b2 MB |
1009 | if (w->power_checked) |
1010 | return w->new_power; | |
1011 | ||
d805002b | 1012 | if (w->force) |
9b8a83b2 | 1013 | w->new_power = 1; |
d805002b | 1014 | else |
9b8a83b2 MB |
1015 | w->new_power = w->power_check(w); |
1016 | ||
1017 | w->power_checked = true; | |
1018 | ||
1019 | return w->new_power; | |
d805002b MB |
1020 | } |
1021 | ||
cd0f2d47 MB |
1022 | /* Generic check to see if a widget should be powered. |
1023 | */ | |
1024 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1025 | { | |
1026 | int in, out; | |
1027 | ||
de02d078 MB |
1028 | DAPM_UPDATE_STAT(w, power_checks); |
1029 | ||
ec2e3031 | 1030 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1031 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1032 | return out != 0 && in != 0; |
1033 | } | |
1034 | ||
246d0a17 MB |
1035 | /* Check to see if a power supply is needed */ |
1036 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1037 | { | |
1038 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1039 | |
de02d078 MB |
1040 | DAPM_UPDATE_STAT(w, power_checks); |
1041 | ||
246d0a17 MB |
1042 | /* Check if one of our outputs is connected */ |
1043 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1044 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1045 | ||
bf3a9e13 MB |
1046 | if (path->weak) |
1047 | continue; | |
1048 | ||
215edda3 MB |
1049 | if (path->connected && |
1050 | !path->connected(path->source, path->sink)) | |
1051 | continue; | |
1052 | ||
f68d7e16 MB |
1053 | if (dapm_widget_power_check(path->sink)) |
1054 | return 1; | |
246d0a17 MB |
1055 | } |
1056 | ||
f68d7e16 | 1057 | return 0; |
246d0a17 MB |
1058 | } |
1059 | ||
35c64bca MB |
1060 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1061 | { | |
1062 | return 1; | |
1063 | } | |
1064 | ||
38357ab2 MB |
1065 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1066 | struct snd_soc_dapm_widget *b, | |
828a842f | 1067 | bool power_up) |
42aa3418 | 1068 | { |
828a842f MB |
1069 | int *sort; |
1070 | ||
1071 | if (power_up) | |
1072 | sort = dapm_up_seq; | |
1073 | else | |
1074 | sort = dapm_down_seq; | |
1075 | ||
38357ab2 MB |
1076 | if (sort[a->id] != sort[b->id]) |
1077 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1078 | if (a->subseq != b->subseq) { |
1079 | if (power_up) | |
1080 | return a->subseq - b->subseq; | |
1081 | else | |
1082 | return b->subseq - a->subseq; | |
1083 | } | |
b22ead2a MB |
1084 | if (a->reg != b->reg) |
1085 | return a->reg - b->reg; | |
84dab567 MB |
1086 | if (a->dapm != b->dapm) |
1087 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1088 | |
38357ab2 MB |
1089 | return 0; |
1090 | } | |
42aa3418 | 1091 | |
38357ab2 MB |
1092 | /* Insert a widget in order into a DAPM power sequence. */ |
1093 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1094 | struct list_head *list, | |
828a842f | 1095 | bool power_up) |
38357ab2 MB |
1096 | { |
1097 | struct snd_soc_dapm_widget *w; | |
1098 | ||
1099 | list_for_each_entry(w, list, power_list) | |
828a842f | 1100 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1101 | list_add_tail(&new_widget->power_list, &w->power_list); |
1102 | return; | |
1103 | } | |
1104 | ||
1105 | list_add_tail(&new_widget->power_list, list); | |
1106 | } | |
1107 | ||
95dd5cd6 | 1108 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1109 | struct snd_soc_dapm_widget *w, int event) |
1110 | { | |
68f89ad8 MB |
1111 | const char *ev_name; |
1112 | int power, ret; | |
1113 | ||
1114 | switch (event) { | |
1115 | case SND_SOC_DAPM_PRE_PMU: | |
1116 | ev_name = "PRE_PMU"; | |
1117 | power = 1; | |
1118 | break; | |
1119 | case SND_SOC_DAPM_POST_PMU: | |
1120 | ev_name = "POST_PMU"; | |
1121 | power = 1; | |
1122 | break; | |
1123 | case SND_SOC_DAPM_PRE_PMD: | |
1124 | ev_name = "PRE_PMD"; | |
1125 | power = 0; | |
1126 | break; | |
1127 | case SND_SOC_DAPM_POST_PMD: | |
1128 | ev_name = "POST_PMD"; | |
1129 | power = 0; | |
1130 | break; | |
80114129 MB |
1131 | case SND_SOC_DAPM_WILL_PMU: |
1132 | ev_name = "WILL_PMU"; | |
1133 | power = 1; | |
1134 | break; | |
1135 | case SND_SOC_DAPM_WILL_PMD: | |
1136 | ev_name = "WILL_PMD"; | |
1137 | power = 0; | |
1138 | break; | |
68f89ad8 | 1139 | default: |
a6ed0608 | 1140 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1141 | return; |
1142 | } | |
1143 | ||
39eb5fd1 | 1144 | if (w->new_power != power) |
68f89ad8 MB |
1145 | return; |
1146 | ||
1147 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1148 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1149 | w->name, ev_name); |
eb270e98 | 1150 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1151 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1152 | ret = w->event(w, NULL, event); |
84e90930 | 1153 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1154 | if (ret < 0) |
95dd5cd6 | 1155 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1156 | ev_name, w->name, ret); |
1157 | } | |
1158 | } | |
1159 | ||
b22ead2a | 1160 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1161 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1162 | struct list_head *pending) |
163cac06 | 1163 | { |
ce0fc93a | 1164 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1165 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1166 | int reg; |
b22ead2a MB |
1167 | unsigned int value = 0; |
1168 | unsigned int mask = 0; | |
b22ead2a | 1169 | |
ce0fc93a LPC |
1170 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1171 | reg = w->reg; | |
1172 | dapm = w->dapm; | |
b22ead2a MB |
1173 | |
1174 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1175 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1176 | w->power = w->new_power; |
b22ead2a | 1177 | |
de9ba98b LPC |
1178 | mask |= w->mask << w->shift; |
1179 | if (w->power) | |
1180 | value |= w->on_val << w->shift; | |
b22ead2a | 1181 | else |
de9ba98b | 1182 | value |= w->off_val << w->shift; |
b22ead2a | 1183 | |
ce0fc93a | 1184 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1185 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1186 | w->name, reg, value, mask); | |
81628103 | 1187 | |
68f89ad8 | 1188 | /* Check for events */ |
95dd5cd6 LPC |
1189 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1190 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1191 | } |
1192 | ||
1193 | if (reg >= 0) { | |
29376bc7 MB |
1194 | /* Any widget will do, they should all be updating the |
1195 | * same register. | |
1196 | */ | |
29376bc7 | 1197 | |
ce0fc93a | 1198 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1199 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1200 | value, mask, reg, card->pop_time); |
1201 | pop_wait(card->pop_time); | |
ce0fc93a | 1202 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1203 | } |
1204 | ||
81628103 | 1205 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1206 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1207 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1208 | } |
b22ead2a | 1209 | } |
42aa3418 | 1210 | |
b22ead2a MB |
1211 | /* Apply a DAPM power sequence. |
1212 | * | |
1213 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1214 | * order to minimise the number of writes to the device required | |
1215 | * multiple widgets will be updated in a single write where possible. | |
1216 | * Currently anything that requires more than a single write is not | |
1217 | * handled. | |
1218 | */ | |
95dd5cd6 LPC |
1219 | static void dapm_seq_run(struct snd_soc_card *card, |
1220 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1221 | { |
1222 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1223 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1224 | LIST_HEAD(pending); |
1225 | int cur_sort = -1; | |
20e4859d | 1226 | int cur_subseq = -1; |
b22ead2a | 1227 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1228 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1229 | int ret, i; |
828a842f MB |
1230 | int *sort; |
1231 | ||
1232 | if (power_up) | |
1233 | sort = dapm_up_seq; | |
1234 | else | |
1235 | sort = dapm_down_seq; | |
163cac06 | 1236 | |
b22ead2a MB |
1237 | list_for_each_entry_safe(w, n, list, power_list) { |
1238 | ret = 0; | |
1239 | ||
1240 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1241 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1242 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1243 | if (!list_empty(&pending)) |
95dd5cd6 | 1244 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1245 | |
474b62d6 MB |
1246 | if (cur_dapm && cur_dapm->seq_notifier) { |
1247 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1248 | if (sort[i] == cur_sort) | |
1249 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1250 | i, |
1251 | cur_subseq); | |
474b62d6 MB |
1252 | } |
1253 | ||
eb270e98 MB |
1254 | if (cur_dapm && w->dapm != cur_dapm) |
1255 | soc_dapm_async_complete(cur_dapm); | |
1256 | ||
b22ead2a MB |
1257 | INIT_LIST_HEAD(&pending); |
1258 | cur_sort = -1; | |
b0b3e6f8 | 1259 | cur_subseq = INT_MIN; |
b22ead2a | 1260 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1261 | cur_dapm = NULL; |
b22ead2a MB |
1262 | } |
1263 | ||
163cac06 MB |
1264 | switch (w->id) { |
1265 | case snd_soc_dapm_pre: | |
1266 | if (!w->event) | |
b22ead2a MB |
1267 | list_for_each_entry_safe_continue(w, n, list, |
1268 | power_list); | |
163cac06 | 1269 | |
b22ead2a | 1270 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1271 | ret = w->event(w, |
1272 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1273 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1274 | ret = w->event(w, |
1275 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1276 | break; |
1277 | ||
1278 | case snd_soc_dapm_post: | |
1279 | if (!w->event) | |
b22ead2a MB |
1280 | list_for_each_entry_safe_continue(w, n, list, |
1281 | power_list); | |
163cac06 | 1282 | |
b22ead2a | 1283 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1284 | ret = w->event(w, |
1285 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1286 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1287 | ret = w->event(w, |
1288 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1289 | break; |
1290 | ||
b22ead2a | 1291 | default: |
81628103 MB |
1292 | /* Queue it up for application */ |
1293 | cur_sort = sort[w->id]; | |
20e4859d | 1294 | cur_subseq = w->subseq; |
81628103 | 1295 | cur_reg = w->reg; |
7be31be8 | 1296 | cur_dapm = w->dapm; |
81628103 MB |
1297 | list_move(&w->power_list, &pending); |
1298 | break; | |
163cac06 | 1299 | } |
b22ead2a MB |
1300 | |
1301 | if (ret < 0) | |
f7d41ae8 | 1302 | dev_err(w->dapm->dev, |
30a6a1a4 | 1303 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1304 | } |
b22ead2a MB |
1305 | |
1306 | if (!list_empty(&pending)) | |
95dd5cd6 | 1307 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1308 | |
1309 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1310 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1311 | if (sort[i] == cur_sort) | |
1312 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1313 | i, cur_subseq); |
474b62d6 | 1314 | } |
eb270e98 MB |
1315 | |
1316 | list_for_each_entry(d, &card->dapm_list, list) { | |
1317 | soc_dapm_async_complete(d); | |
1318 | } | |
42aa3418 MB |
1319 | } |
1320 | ||
95dd5cd6 | 1321 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1322 | { |
95dd5cd6 | 1323 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1324 | struct snd_soc_dapm_widget_list *wlist; |
1325 | struct snd_soc_dapm_widget *w = NULL; | |
1326 | unsigned int wi; | |
97404f2e MB |
1327 | int ret; |
1328 | ||
57295073 | 1329 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1330 | return; |
1331 | ||
e84357f7 | 1332 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1333 | |
ce6cfaf1 LPC |
1334 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1335 | w = wlist->widgets[wi]; | |
1336 | ||
1337 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1338 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1339 | if (ret != 0) | |
95dd5cd6 | 1340 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1341 | w->name, ret); |
1342 | } | |
97404f2e MB |
1343 | } |
1344 | ||
ce6cfaf1 LPC |
1345 | if (!w) |
1346 | return; | |
1347 | ||
ce0fc93a LPC |
1348 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1349 | update->val); | |
97404f2e | 1350 | if (ret < 0) |
95dd5cd6 | 1351 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1352 | w->name, ret); |
97404f2e | 1353 | |
ce6cfaf1 LPC |
1354 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1355 | w = wlist->widgets[wi]; | |
1356 | ||
1357 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1358 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1359 | if (ret != 0) | |
95dd5cd6 | 1360 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1361 | w->name, ret); |
1362 | } | |
97404f2e MB |
1363 | } |
1364 | } | |
1365 | ||
9d0624a7 MB |
1366 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1367 | * they're changing state. | |
1368 | */ | |
1369 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1370 | { | |
1371 | struct snd_soc_dapm_context *d = data; | |
1372 | int ret; | |
1373 | ||
56fba41f MB |
1374 | /* If we're off and we're not supposed to be go into STANDBY */ |
1375 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1376 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1377 | if (d->dev) |
1378 | pm_runtime_get_sync(d->dev); | |
1379 | ||
9d0624a7 MB |
1380 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1381 | if (ret != 0) | |
1382 | dev_err(d->dev, | |
30a6a1a4 | 1383 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1384 | } |
1385 | ||
ce85a4d7 LPC |
1386 | /* Prepare for a transition to ON or away from ON */ |
1387 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1388 | d->bias_level != SND_SOC_BIAS_ON) || | |
1389 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1390 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1391 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1392 | if (ret != 0) | |
1393 | dev_err(d->dev, | |
30a6a1a4 | 1394 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1395 | } |
1396 | } | |
1397 | ||
1398 | /* Async callback run prior to DAPM sequences - brings to their final | |
1399 | * state. | |
1400 | */ | |
1401 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1402 | { | |
1403 | struct snd_soc_dapm_context *d = data; | |
1404 | int ret; | |
1405 | ||
1406 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1407 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1408 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1409 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1410 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1411 | if (ret != 0) | |
30a6a1a4 | 1412 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1413 | ret); |
1414 | } | |
97404f2e | 1415 | |
9d0624a7 | 1416 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1417 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1418 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1419 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1420 | if (ret != 0) | |
30a6a1a4 LG |
1421 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1422 | ret); | |
f1aac484 MB |
1423 | |
1424 | if (d->dev) | |
fb644e9c | 1425 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1426 | } |
1427 | ||
1428 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1429 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1430 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1431 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1432 | if (ret != 0) | |
30a6a1a4 | 1433 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1434 | ret); |
1435 | } | |
1436 | } | |
97404f2e | 1437 | |
fe4fda5d MB |
1438 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1439 | bool power, bool connect) | |
1440 | { | |
1441 | /* If a connection is being made or broken then that update | |
1442 | * will have marked the peer dirty, otherwise the widgets are | |
1443 | * not connected and this update has no impact. */ | |
1444 | if (!connect) | |
1445 | return; | |
1446 | ||
1447 | /* If the peer is already in the state we're moving to then we | |
1448 | * won't have an impact on it. */ | |
1449 | if (power != peer->power) | |
75c1f891 | 1450 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1451 | } |
1452 | ||
05623c43 MB |
1453 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1454 | struct list_head *up_list, | |
1455 | struct list_head *down_list) | |
1456 | { | |
db432b41 MB |
1457 | struct snd_soc_dapm_path *path; |
1458 | ||
05623c43 MB |
1459 | if (w->power == power) |
1460 | return; | |
1461 | ||
1462 | trace_snd_soc_dapm_widget_power(w, power); | |
1463 | ||
db432b41 | 1464 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1465 | * also. |
db432b41 | 1466 | */ |
7ddd4cd5 LPC |
1467 | list_for_each_entry(path, &w->sources, list_sink) |
1468 | dapm_widget_set_peer_power(path->source, power, path->connect); | |
1469 | ||
6dd98b0a LPC |
1470 | /* Supplies can't affect their outputs, only their inputs */ |
1471 | if (!w->is_supply) { | |
7ddd4cd5 LPC |
1472 | list_for_each_entry(path, &w->sinks, list_source) |
1473 | dapm_widget_set_peer_power(path->sink, power, | |
1474 | path->connect); | |
db432b41 MB |
1475 | } |
1476 | ||
05623c43 MB |
1477 | if (power) |
1478 | dapm_seq_insert(w, up_list, true); | |
1479 | else | |
1480 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1481 | } |
1482 | ||
7c81beb0 MB |
1483 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1484 | struct list_head *up_list, | |
1485 | struct list_head *down_list) | |
1486 | { | |
7c81beb0 MB |
1487 | int power; |
1488 | ||
1489 | switch (w->id) { | |
1490 | case snd_soc_dapm_pre: | |
1491 | dapm_seq_insert(w, down_list, false); | |
1492 | break; | |
1493 | case snd_soc_dapm_post: | |
1494 | dapm_seq_insert(w, up_list, true); | |
1495 | break; | |
1496 | ||
1497 | default: | |
d805002b | 1498 | power = dapm_widget_power_check(w); |
7c81beb0 | 1499 | |
05623c43 | 1500 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1501 | break; |
1502 | } | |
1503 | } | |
1504 | ||
86dbf2ac LPC |
1505 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1506 | { | |
1507 | if (dapm->idle_bias_off) | |
1508 | return true; | |
1509 | ||
1510 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1511 | case SNDRV_CTL_POWER_D3hot: | |
1512 | case SNDRV_CTL_POWER_D3cold: | |
1513 | return dapm->suspend_bias_off; | |
1514 | default: | |
1515 | break; | |
1516 | } | |
1517 | ||
1518 | return false; | |
1519 | } | |
1520 | ||
2b97eabc RP |
1521 | /* |
1522 | * Scan each dapm widget for complete audio path. | |
1523 | * A complete path is a route that has valid endpoints i.e.:- | |
1524 | * | |
1525 | * o DAC to output pin. | |
1526 | * o Input Pin to ADC. | |
1527 | * o Input pin to Output pin (bypass, sidetone) | |
1528 | * o DAC to ADC (loopback). | |
1529 | */ | |
95dd5cd6 | 1530 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1531 | { |
1532 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1533 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1534 | LIST_HEAD(up_list); |
1535 | LIST_HEAD(down_list); | |
2955b47d | 1536 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1537 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1538 | |
f9fa2b18 MB |
1539 | lockdep_assert_held(&card->dapm_mutex); |
1540 | ||
84e90930 MB |
1541 | trace_snd_soc_dapm_start(card); |
1542 | ||
56fba41f | 1543 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1544 | if (dapm_idle_bias_off(d)) |
497098be MB |
1545 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1546 | else | |
1547 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1548 | } |
7be31be8 | 1549 | |
6c120e19 | 1550 | dapm_reset(card); |
9b8a83b2 | 1551 | |
6d3ddc81 | 1552 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1553 | * lists indicating if they should be powered up or down. We |
1554 | * only check widgets that have been flagged as dirty but note | |
1555 | * that new widgets may be added to the dirty list while we | |
1556 | * iterate. | |
6d3ddc81 | 1557 | */ |
db432b41 | 1558 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1559 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1560 | } |
1561 | ||
f9de6d74 | 1562 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1563 | switch (w->id) { |
1564 | case snd_soc_dapm_pre: | |
1565 | case snd_soc_dapm_post: | |
1566 | /* These widgets always need to be powered */ | |
1567 | break; | |
1568 | default: | |
1569 | list_del_init(&w->dirty); | |
1570 | break; | |
1571 | } | |
db432b41 | 1572 | |
39eb5fd1 | 1573 | if (w->new_power) { |
f9de6d74 MB |
1574 | d = w->dapm; |
1575 | ||
1576 | /* Supplies and micbiases only bring the | |
1577 | * context up to STANDBY as unless something | |
1578 | * else is active and passing audio they | |
afe62367 MB |
1579 | * generally don't require full power. Signal |
1580 | * generators are virtual pins and have no | |
1581 | * power impact themselves. | |
f9de6d74 MB |
1582 | */ |
1583 | switch (w->id) { | |
afe62367 | 1584 | case snd_soc_dapm_siggen: |
da83fea6 | 1585 | case snd_soc_dapm_vmid: |
afe62367 | 1586 | break; |
f9de6d74 | 1587 | case snd_soc_dapm_supply: |
62ea874a | 1588 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1589 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1590 | case snd_soc_dapm_micbias: |
1591 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1592 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1593 | break; | |
1594 | default: | |
1595 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1596 | break; | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | } | |
1601 | ||
85a843c5 MB |
1602 | /* Force all contexts in the card to the same bias state if |
1603 | * they're not ground referenced. | |
1604 | */ | |
56fba41f | 1605 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1606 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1607 | if (d->target_bias_level > bias) |
1608 | bias = d->target_bias_level; | |
52ba67bf | 1609 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1610 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1611 | d->target_bias_level = bias; |
52ba67bf | 1612 | |
de02d078 | 1613 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1614 | |
17282ba4 XX |
1615 | /* Run card bias changes at first */ |
1616 | dapm_pre_sequence_async(&card->dapm, 0); | |
1617 | /* Run other bias changes in parallel */ | |
1618 | list_for_each_entry(d, &card->dapm_list, list) { | |
1619 | if (d != &card->dapm) | |
1620 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1621 | &async_domain); | |
1622 | } | |
9d0624a7 | 1623 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1624 | |
cf1f7c6e | 1625 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1626 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1627 | } |
1628 | ||
cf1f7c6e | 1629 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1630 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1631 | } |
1632 | ||
6d3ddc81 | 1633 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1634 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1635 | |
95dd5cd6 | 1636 | dapm_widget_update(card); |
97404f2e | 1637 | |
6d3ddc81 | 1638 | /* Now power up. */ |
95dd5cd6 | 1639 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1640 | |
9d0624a7 | 1641 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1642 | list_for_each_entry(d, &card->dapm_list, list) { |
1643 | if (d != &card->dapm) | |
1644 | async_schedule_domain(dapm_post_sequence_async, d, | |
1645 | &async_domain); | |
1646 | } | |
9d0624a7 | 1647 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1648 | /* Run card bias changes at last */ |
1649 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1650 | |
8078d87f LG |
1651 | /* do we need to notify any clients that DAPM event is complete */ |
1652 | list_for_each_entry(d, &card->dapm_list, list) { | |
1653 | if (d->stream_event) | |
1654 | d->stream_event(d, event); | |
1655 | } | |
1656 | ||
95dd5cd6 | 1657 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1658 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1659 | pop_wait(card->pop_time); |
cb507e7e | 1660 | |
84e90930 MB |
1661 | trace_snd_soc_dapm_done(card); |
1662 | ||
42aa3418 | 1663 | return 0; |
2b97eabc RP |
1664 | } |
1665 | ||
79fb9387 | 1666 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1667 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1668 | char __user *user_buf, | |
1669 | size_t count, loff_t *ppos) | |
1670 | { | |
1671 | struct snd_soc_dapm_widget *w = file->private_data; | |
1672 | char *buf; | |
1673 | int in, out; | |
1674 | ssize_t ret; | |
1675 | struct snd_soc_dapm_path *p = NULL; | |
1676 | ||
1677 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1678 | if (!buf) | |
1679 | return -ENOMEM; | |
1680 | ||
c1862c8b LPC |
1681 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1682 | if (w->is_supply) { | |
1683 | in = 0; | |
1684 | out = 0; | |
1685 | } else { | |
1686 | in = is_connected_input_ep(w, NULL); | |
1687 | out = is_connected_output_ep(w, NULL); | |
1688 | } | |
79fb9387 | 1689 | |
f13ebada MB |
1690 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1691 | w->name, w->power ? "On" : "Off", | |
1692 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1693 | |
d033c36a MB |
1694 | if (w->reg >= 0) |
1695 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1696 | " - R%d(0x%x) mask 0x%x", |
1697 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1698 | |
1699 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1700 | ||
3eef08ba MB |
1701 | if (w->sname) |
1702 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1703 | w->sname, | |
1704 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1705 | |
1706 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1707 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1708 | continue; |
1709 | ||
79fb9387 MB |
1710 | if (p->connect) |
1711 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1712 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1713 | p->name ? p->name : "static", |
1714 | p->source->name); | |
1715 | } | |
1716 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1717 | if (p->connected && !p->connected(w, p->sink)) |
1718 | continue; | |
1719 | ||
79fb9387 MB |
1720 | if (p->connect) |
1721 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1722 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1723 | p->name ? p->name : "static", |
1724 | p->sink->name); | |
1725 | } | |
1726 | ||
1727 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1728 | ||
1729 | kfree(buf); | |
1730 | return ret; | |
1731 | } | |
1732 | ||
1733 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1734 | .open = simple_open, |
79fb9387 | 1735 | .read = dapm_widget_power_read_file, |
6038f373 | 1736 | .llseek = default_llseek, |
79fb9387 MB |
1737 | }; |
1738 | ||
ef49e4fa MB |
1739 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1740 | size_t count, loff_t *ppos) | |
1741 | { | |
1742 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1743 | char *level; | |
1744 | ||
1745 | switch (dapm->bias_level) { | |
1746 | case SND_SOC_BIAS_ON: | |
1747 | level = "On\n"; | |
1748 | break; | |
1749 | case SND_SOC_BIAS_PREPARE: | |
1750 | level = "Prepare\n"; | |
1751 | break; | |
1752 | case SND_SOC_BIAS_STANDBY: | |
1753 | level = "Standby\n"; | |
1754 | break; | |
1755 | case SND_SOC_BIAS_OFF: | |
1756 | level = "Off\n"; | |
1757 | break; | |
1758 | default: | |
a6ed0608 | 1759 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1760 | level = "Unknown\n"; |
1761 | break; | |
1762 | } | |
1763 | ||
1764 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1765 | strlen(level)); | |
1766 | } | |
1767 | ||
1768 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1769 | .open = simple_open, |
ef49e4fa MB |
1770 | .read = dapm_bias_read_file, |
1771 | .llseek = default_llseek, | |
1772 | }; | |
1773 | ||
8eecaf62 LPC |
1774 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1775 | struct dentry *parent) | |
79fb9387 | 1776 | { |
79fb9387 MB |
1777 | struct dentry *d; |
1778 | ||
8eecaf62 LPC |
1779 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1780 | ||
1781 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1782 | dev_warn(dapm->dev, |
30a6a1a4 | 1783 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1784 | return; |
8eecaf62 | 1785 | } |
79fb9387 | 1786 | |
ef49e4fa MB |
1787 | d = debugfs_create_file("bias_level", 0444, |
1788 | dapm->debugfs_dapm, dapm, | |
1789 | &dapm_bias_fops); | |
1790 | if (!d) | |
1791 | dev_warn(dapm->dev, | |
1792 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1793 | } |
ef49e4fa | 1794 | |
d5d1e0be LPC |
1795 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1796 | { | |
1797 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1798 | struct dentry *d; | |
79fb9387 | 1799 | |
d5d1e0be LPC |
1800 | if (!dapm->debugfs_dapm || !w->name) |
1801 | return; | |
1802 | ||
1803 | d = debugfs_create_file(w->name, 0444, | |
1804 | dapm->debugfs_dapm, w, | |
1805 | &dapm_widget_power_fops); | |
1806 | if (!d) | |
1807 | dev_warn(w->dapm->dev, | |
1808 | "ASoC: Failed to create %s debugfs file\n", | |
1809 | w->name); | |
79fb9387 | 1810 | } |
d5d1e0be | 1811 | |
6c45e126 LPC |
1812 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1813 | { | |
1814 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1815 | } | |
1816 | ||
79fb9387 | 1817 | #else |
8eecaf62 LPC |
1818 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1819 | struct dentry *parent) | |
79fb9387 MB |
1820 | { |
1821 | } | |
d5d1e0be LPC |
1822 | |
1823 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1824 | { | |
1825 | } | |
1826 | ||
6c45e126 LPC |
1827 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1828 | { | |
1829 | } | |
1830 | ||
79fb9387 MB |
1831 | #endif |
1832 | ||
4a201948 LPC |
1833 | /* |
1834 | * soc_dapm_connect_path() - Connects or disconnects a path | |
1835 | * @path: The path to update | |
1836 | * @connect: The new connect state of the path. True if the path is connected, | |
1837 | * false if it is disconneted. | |
1838 | * @reason: The reason why the path changed (for debugging only) | |
1839 | */ | |
1840 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
1841 | bool connect, const char *reason) | |
1842 | { | |
1843 | if (path->connect == connect) | |
1844 | return; | |
1845 | ||
1846 | path->connect = connect; | |
1847 | dapm_mark_dirty(path->source, reason); | |
1848 | dapm_mark_dirty(path->sink, reason); | |
1849 | } | |
1850 | ||
2b97eabc | 1851 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 1852 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 1853 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1854 | { |
1855 | struct snd_soc_dapm_path *path; | |
1856 | int found = 0; | |
4a201948 | 1857 | bool connect; |
2b97eabc | 1858 | |
f9fa2b18 MB |
1859 | lockdep_assert_held(&card->dapm_mutex); |
1860 | ||
2b97eabc | 1861 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 1862 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
1863 | found = 1; |
1864 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
1865 | if (!(strcmp(path->name, e->texts[mux]))) |
1866 | connect = true; | |
1867 | else | |
1868 | connect = false; | |
1869 | ||
1870 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
1871 | } |
1872 | ||
ce6cfaf1 | 1873 | if (found) |
95dd5cd6 | 1874 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1875 | |
618dae11 | 1876 | return found; |
2b97eabc | 1877 | } |
4edbb345 | 1878 | |
ce6cfaf1 | 1879 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
1880 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
1881 | struct snd_soc_dapm_update *update) | |
4edbb345 | 1882 | { |
ce6cfaf1 | 1883 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
1884 | int ret; |
1885 | ||
3cd04343 | 1886 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 1887 | card->update = update; |
95dd5cd6 | 1888 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 1889 | card->update = NULL; |
4edbb345 | 1890 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 1891 | if (ret > 0) |
c3f48ae6 | 1892 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
1893 | return ret; |
1894 | } | |
40f02cd9 | 1895 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1896 | |
1b075e3f | 1897 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 1898 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 1899 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1900 | { |
1901 | struct snd_soc_dapm_path *path; | |
1902 | int found = 0; | |
1903 | ||
f9fa2b18 MB |
1904 | lockdep_assert_held(&card->dapm_mutex); |
1905 | ||
2b97eabc | 1906 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 1907 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 1908 | found = 1; |
4a201948 | 1909 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
1910 | } |
1911 | ||
ce6cfaf1 | 1912 | if (found) |
95dd5cd6 | 1913 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1914 | |
618dae11 | 1915 | return found; |
2b97eabc | 1916 | } |
4edbb345 | 1917 | |
ce6cfaf1 | 1918 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
1919 | struct snd_kcontrol *kcontrol, int connect, |
1920 | struct snd_soc_dapm_update *update) | |
4edbb345 | 1921 | { |
ce6cfaf1 | 1922 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
1923 | int ret; |
1924 | ||
3cd04343 | 1925 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 1926 | card->update = update; |
95dd5cd6 | 1927 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 1928 | card->update = NULL; |
4edbb345 | 1929 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 1930 | if (ret > 0) |
c3f48ae6 | 1931 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
1932 | return ret; |
1933 | } | |
40f02cd9 | 1934 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 1935 | |
44ba2641 | 1936 | static ssize_t dapm_widget_show_codec(struct snd_soc_codec *codec, char *buf) |
2b97eabc | 1937 | { |
2b97eabc RP |
1938 | struct snd_soc_dapm_widget *w; |
1939 | int count = 0; | |
1940 | char *state = "not set"; | |
1941 | ||
00200107 | 1942 | list_for_each_entry(w, &codec->component.card->widgets, list) { |
97c866de JN |
1943 | if (w->dapm != &codec->dapm) |
1944 | continue; | |
2b97eabc RP |
1945 | |
1946 | /* only display widgets that burnm power */ | |
1947 | switch (w->id) { | |
1948 | case snd_soc_dapm_hp: | |
1949 | case snd_soc_dapm_mic: | |
1950 | case snd_soc_dapm_spk: | |
1951 | case snd_soc_dapm_line: | |
1952 | case snd_soc_dapm_micbias: | |
1953 | case snd_soc_dapm_dac: | |
1954 | case snd_soc_dapm_adc: | |
1955 | case snd_soc_dapm_pga: | |
d88429a6 | 1956 | case snd_soc_dapm_out_drv: |
2b97eabc | 1957 | case snd_soc_dapm_mixer: |
ca9c1aae | 1958 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1959 | case snd_soc_dapm_supply: |
62ea874a | 1960 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1961 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
1962 | if (w->name) |
1963 | count += sprintf(buf + count, "%s: %s\n", | |
1964 | w->name, w->power ? "On":"Off"); | |
1965 | break; | |
1966 | default: | |
1967 | break; | |
1968 | } | |
1969 | } | |
1970 | ||
ce6120cc | 1971 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1972 | case SND_SOC_BIAS_ON: |
1973 | state = "On"; | |
2b97eabc | 1974 | break; |
0be9898a MB |
1975 | case SND_SOC_BIAS_PREPARE: |
1976 | state = "Prepare"; | |
2b97eabc | 1977 | break; |
0be9898a MB |
1978 | case SND_SOC_BIAS_STANDBY: |
1979 | state = "Standby"; | |
2b97eabc | 1980 | break; |
0be9898a MB |
1981 | case SND_SOC_BIAS_OFF: |
1982 | state = "Off"; | |
2b97eabc RP |
1983 | break; |
1984 | } | |
1985 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1986 | ||
1987 | return count; | |
1988 | } | |
1989 | ||
44ba2641 BC |
1990 | /* show dapm widget status in sys fs */ |
1991 | static ssize_t dapm_widget_show(struct device *dev, | |
1992 | struct device_attribute *attr, char *buf) | |
1993 | { | |
1994 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
1995 | int i, count = 0; | |
1996 | ||
1997 | for (i = 0; i < rtd->num_codecs; i++) { | |
1998 | struct snd_soc_codec *codec = rtd->codec_dais[i]->codec; | |
1999 | count += dapm_widget_show_codec(codec, buf + count); | |
2000 | } | |
2001 | ||
2002 | return count; | |
2003 | } | |
2004 | ||
2b97eabc RP |
2005 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2006 | ||
2007 | int snd_soc_dapm_sys_add(struct device *dev) | |
2008 | { | |
12ef193d | 2009 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2010 | } |
2011 | ||
2012 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2013 | { | |
aef90843 | 2014 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2015 | } |
2016 | ||
8872293f LPC |
2017 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2018 | { | |
2019 | list_del(&path->list_sink); | |
2020 | list_del(&path->list_source); | |
5106b92f | 2021 | list_del(&path->list_kcontrol); |
8872293f | 2022 | list_del(&path->list); |
8872293f LPC |
2023 | kfree(path); |
2024 | } | |
2025 | ||
2b97eabc | 2026 | /* free all dapm widgets and resources */ |
ce6120cc | 2027 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2028 | { |
2029 | struct snd_soc_dapm_widget *w, *next_w; | |
2030 | struct snd_soc_dapm_path *p, *next_p; | |
2031 | ||
97c866de JN |
2032 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2033 | if (w->dapm != dapm) | |
2034 | continue; | |
2b97eabc | 2035 | list_del(&w->list); |
8ddab3f5 JN |
2036 | /* |
2037 | * remove source and sink paths associated to this widget. | |
2038 | * While removing the path, remove reference to it from both | |
2039 | * source and sink widgets so that path is removed only once. | |
2040 | */ | |
8872293f LPC |
2041 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2042 | dapm_free_path(p); | |
2043 | ||
2044 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2045 | dapm_free_path(p); | |
2046 | ||
fad59888 | 2047 | kfree(w->kcontrols); |
ead9b919 | 2048 | kfree(w->name); |
2b97eabc RP |
2049 | kfree(w); |
2050 | } | |
2b97eabc RP |
2051 | } |
2052 | ||
91a5fca4 LPC |
2053 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2054 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2055 | bool search_other_contexts) | |
a5302181 LG |
2056 | { |
2057 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2058 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2059 | |
97c866de | 2060 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2061 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2062 | if (w->dapm == dapm) |
2063 | return w; | |
2064 | else | |
2065 | fallback = w; | |
a5302181 LG |
2066 | } |
2067 | } | |
2068 | ||
91a5fca4 LPC |
2069 | if (search_other_contexts) |
2070 | return fallback; | |
2071 | ||
2072 | return NULL; | |
2073 | } | |
2074 | ||
2075 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2076 | const char *pin, int status) | |
2077 | { | |
2078 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2079 | ||
f9fa2b18 MB |
2080 | dapm_assert_locked(dapm); |
2081 | ||
91a5fca4 | 2082 | if (!w) { |
30a6a1a4 | 2083 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2084 | return -EINVAL; |
0d86733c MB |
2085 | } |
2086 | ||
1a8b2d9d MB |
2087 | if (w->connected != status) |
2088 | dapm_mark_dirty(w, "pin configuration"); | |
2089 | ||
91a5fca4 LPC |
2090 | w->connected = status; |
2091 | if (status == 0) | |
2092 | w->force = 0; | |
2093 | ||
2094 | return 0; | |
a5302181 LG |
2095 | } |
2096 | ||
2b97eabc | 2097 | /** |
3eb29dfb | 2098 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2099 | * @dapm: DAPM context |
2b97eabc RP |
2100 | * |
2101 | * Walks all dapm audio paths and powers widgets according to their | |
2102 | * stream or path usage. | |
2103 | * | |
3eb29dfb CK |
2104 | * Requires external locking. |
2105 | * | |
2b97eabc RP |
2106 | * Returns 0 for success. |
2107 | */ | |
3eb29dfb | 2108 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2109 | { |
4f4c0072 MB |
2110 | /* |
2111 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2112 | * silly DAPM runs during card startup. | |
2113 | */ | |
2114 | if (!dapm->card || !dapm->card->instantiated) | |
2115 | return 0; | |
2116 | ||
3eb29dfb CK |
2117 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2118 | } | |
2119 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2120 | ||
2121 | /** | |
2122 | * snd_soc_dapm_sync - scan and power dapm paths | |
2123 | * @dapm: DAPM context | |
2124 | * | |
2125 | * Walks all dapm audio paths and powers widgets according to their | |
2126 | * stream or path usage. | |
2127 | * | |
2128 | * Returns 0 for success. | |
2129 | */ | |
2130 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2131 | { | |
2132 | int ret; | |
2133 | ||
3cd04343 | 2134 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2135 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2136 | mutex_unlock(&dapm->card->dapm_mutex); |
2137 | return ret; | |
2b97eabc | 2138 | } |
a5302181 | 2139 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2140 | |
6dd98b0a LPC |
2141 | /* |
2142 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2143 | * @w: The widget for which to update the flags | |
2144 | * | |
2145 | * Some widgets have a dynamic category which depends on which neighbors they | |
2146 | * are connected to. This function update the category for these widgets. | |
2147 | * | |
2148 | * This function must be called whenever a path is added or removed to a widget. | |
2149 | */ | |
2150 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2151 | { | |
2152 | struct snd_soc_dapm_path *p; | |
2153 | ||
2154 | switch (w->id) { | |
2155 | case snd_soc_dapm_input: | |
2156 | w->is_source = 1; | |
2157 | list_for_each_entry(p, &w->sources, list_sink) { | |
2158 | if (p->source->id == snd_soc_dapm_micbias || | |
2159 | p->source->id == snd_soc_dapm_mic || | |
2160 | p->source->id == snd_soc_dapm_line || | |
2161 | p->source->id == snd_soc_dapm_output) { | |
2162 | w->is_source = 0; | |
2163 | break; | |
2164 | } | |
2165 | } | |
2166 | break; | |
2167 | case snd_soc_dapm_output: | |
2168 | w->is_sink = 1; | |
2169 | list_for_each_entry(p, &w->sinks, list_source) { | |
2170 | if (p->sink->id == snd_soc_dapm_spk || | |
2171 | p->sink->id == snd_soc_dapm_hp || | |
2172 | p->sink->id == snd_soc_dapm_line || | |
2173 | p->sink->id == snd_soc_dapm_input) { | |
2174 | w->is_sink = 0; | |
2175 | break; | |
2176 | } | |
2177 | } | |
2178 | break; | |
2179 | case snd_soc_dapm_line: | |
2180 | w->is_sink = !list_empty(&w->sources); | |
2181 | w->is_source = !list_empty(&w->sinks); | |
2182 | break; | |
2183 | default: | |
2184 | break; | |
2185 | } | |
2186 | } | |
2187 | ||
2553628e LPC |
2188 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2189 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2190 | const char *control, | |
2191 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2192 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2193 | { |
2194 | struct snd_soc_dapm_path *path; | |
2553628e | 2195 | int ret; |
2b97eabc RP |
2196 | |
2197 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2198 | if (!path) | |
2199 | return -ENOMEM; | |
2200 | ||
2201 | path->source = wsource; | |
2202 | path->sink = wsink; | |
2553628e | 2203 | path->connected = connected; |
2b97eabc | 2204 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2205 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2206 | INIT_LIST_HEAD(&path->list_source); |
2207 | INIT_LIST_HEAD(&path->list_sink); | |
2208 | ||
c1862c8b LPC |
2209 | if (wsource->is_supply || wsink->is_supply) |
2210 | path->is_supply = 1; | |
2211 | ||
2b97eabc RP |
2212 | /* connect static paths */ |
2213 | if (control == NULL) { | |
2b97eabc | 2214 | path->connect = 1; |
5fe5b767 LPC |
2215 | } else { |
2216 | /* connect dynamic paths */ | |
2217 | switch (wsink->id) { | |
2218 | case snd_soc_dapm_mux: | |
2219 | ret = dapm_connect_mux(dapm, path, control); | |
2220 | if (ret != 0) | |
2221 | goto err; | |
2222 | break; | |
2223 | case snd_soc_dapm_switch: | |
2224 | case snd_soc_dapm_mixer: | |
2225 | case snd_soc_dapm_mixer_named_ctl: | |
2226 | ret = dapm_connect_mixer(dapm, path, control); | |
2227 | if (ret != 0) | |
2228 | goto err; | |
2229 | break; | |
2230 | default: | |
2231 | dev_err(dapm->dev, | |
2232 | "Control not supported for path %s -> [%s] -> %s\n", | |
2233 | wsource->name, control, wsink->name); | |
2234 | ret = -EINVAL; | |
2b97eabc | 2235 | goto err; |
5fe5b767 | 2236 | } |
2b97eabc | 2237 | } |
fabd0384 | 2238 | |
5fe5b767 LPC |
2239 | list_add(&path->list, &dapm->card->paths); |
2240 | list_add(&path->list_sink, &wsink->sources); | |
2241 | list_add(&path->list_source, &wsource->sinks); | |
2242 | ||
6dd98b0a LPC |
2243 | dapm_update_widget_flags(wsource); |
2244 | dapm_update_widget_flags(wsink); | |
2245 | ||
5fe5b767 LPC |
2246 | dapm_mark_dirty(wsource, "Route added"); |
2247 | dapm_mark_dirty(wsink, "Route added"); | |
2248 | ||
2b97eabc | 2249 | return 0; |
2553628e LPC |
2250 | err: |
2251 | kfree(path); | |
2252 | return ret; | |
2253 | } | |
2b97eabc | 2254 | |
2553628e | 2255 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2256 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2257 | { |
2258 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2259 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2260 | const char *sink; | |
2261 | const char *source; | |
2262 | char prefixed_sink[80]; | |
2263 | char prefixed_source[80]; | |
94f99c87 | 2264 | const char *prefix; |
2553628e LPC |
2265 | int ret; |
2266 | ||
94f99c87 LPC |
2267 | prefix = soc_dapm_prefix(dapm); |
2268 | if (prefix) { | |
2553628e | 2269 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2270 | prefix, route->sink); |
2553628e LPC |
2271 | sink = prefixed_sink; |
2272 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2273 | prefix, route->source); |
2553628e LPC |
2274 | source = prefixed_source; |
2275 | } else { | |
2276 | sink = route->sink; | |
2277 | source = route->source; | |
2278 | } | |
2279 | ||
2280 | /* | |
2281 | * find src and dest widgets over all widgets but favor a widget from | |
2282 | * current DAPM context | |
2283 | */ | |
2284 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2285 | if (!wsink && !(strcmp(w->name, sink))) { | |
2286 | wtsink = w; | |
2287 | if (w->dapm == dapm) | |
2288 | wsink = w; | |
2289 | continue; | |
2290 | } | |
2291 | if (!wsource && !(strcmp(w->name, source))) { | |
2292 | wtsource = w; | |
2293 | if (w->dapm == dapm) | |
2294 | wsource = w; | |
2295 | } | |
2296 | } | |
2297 | /* use widget from another DAPM context if not found from this */ | |
2298 | if (!wsink) | |
2299 | wsink = wtsink; | |
2300 | if (!wsource) | |
2301 | wsource = wtsource; | |
2302 | ||
2303 | if (wsource == NULL) { | |
2304 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2305 | route->source); | |
2306 | return -ENODEV; | |
2307 | } | |
2308 | if (wsink == NULL) { | |
2309 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2310 | route->sink); | |
2311 | return -ENODEV; | |
2312 | } | |
2313 | ||
2314 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2315 | route->connected); | |
2316 | if (ret) | |
2317 | goto err; | |
2318 | ||
2319 | return 0; | |
2b97eabc | 2320 | err: |
30a6a1a4 | 2321 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2322 | source, route->control, sink); |
2b97eabc RP |
2323 | return ret; |
2324 | } | |
105f1c28 | 2325 | |
efcc3c61 MB |
2326 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2327 | const struct snd_soc_dapm_route *route) | |
2328 | { | |
6dd98b0a | 2329 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2330 | struct snd_soc_dapm_path *path, *p; |
2331 | const char *sink; | |
2332 | const char *source; | |
2333 | char prefixed_sink[80]; | |
2334 | char prefixed_source[80]; | |
94f99c87 | 2335 | const char *prefix; |
efcc3c61 MB |
2336 | |
2337 | if (route->control) { | |
2338 | dev_err(dapm->dev, | |
30a6a1a4 | 2339 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2340 | return -EINVAL; |
2341 | } | |
2342 | ||
94f99c87 LPC |
2343 | prefix = soc_dapm_prefix(dapm); |
2344 | if (prefix) { | |
efcc3c61 | 2345 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2346 | prefix, route->sink); |
efcc3c61 MB |
2347 | sink = prefixed_sink; |
2348 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2349 | prefix, route->source); |
efcc3c61 MB |
2350 | source = prefixed_source; |
2351 | } else { | |
2352 | sink = route->sink; | |
2353 | source = route->source; | |
2354 | } | |
2355 | ||
2356 | path = NULL; | |
2357 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2358 | if (strcmp(p->source->name, source) != 0) | |
2359 | continue; | |
2360 | if (strcmp(p->sink->name, sink) != 0) | |
2361 | continue; | |
2362 | path = p; | |
2363 | break; | |
2364 | } | |
2365 | ||
2366 | if (path) { | |
6dd98b0a LPC |
2367 | wsource = path->source; |
2368 | wsink = path->sink; | |
2369 | ||
2370 | dapm_mark_dirty(wsource, "Route removed"); | |
2371 | dapm_mark_dirty(wsink, "Route removed"); | |
efcc3c61 | 2372 | |
8872293f | 2373 | dapm_free_path(path); |
6dd98b0a LPC |
2374 | |
2375 | /* Update any path related flags */ | |
2376 | dapm_update_widget_flags(wsource); | |
2377 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2378 | } else { |
30a6a1a4 | 2379 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2380 | source, sink); |
2381 | } | |
2382 | ||
2383 | return 0; | |
2384 | } | |
2385 | ||
105f1c28 MB |
2386 | /** |
2387 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2388 | * @dapm: DAPM context |
105f1c28 MB |
2389 | * @route: audio routes |
2390 | * @num: number of routes | |
2391 | * | |
2392 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2393 | * the widget receiving the audio signal, whilst the source is the sender | |
2394 | * of the audio signal. | |
2395 | * | |
2396 | * Returns 0 for success else error. On error all resources can be freed | |
2397 | * with a call to snd_soc_card_free(). | |
2398 | */ | |
ce6120cc | 2399 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2400 | const struct snd_soc_dapm_route *route, int num) |
2401 | { | |
62d4a4b9 | 2402 | int i, r, ret = 0; |
105f1c28 | 2403 | |
a73fb2df | 2404 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2405 | for (i = 0; i < num; i++) { |
a4e9154c | 2406 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2407 | if (r < 0) { |
30a6a1a4 LG |
2408 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2409 | route->source, | |
2410 | route->control ? route->control : "direct", | |
2411 | route->sink); | |
62d4a4b9 | 2412 | ret = r; |
105f1c28 MB |
2413 | } |
2414 | route++; | |
2415 | } | |
a73fb2df | 2416 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2417 | |
60884c27 | 2418 | return ret; |
105f1c28 MB |
2419 | } |
2420 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2421 | ||
efcc3c61 MB |
2422 | /** |
2423 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2424 | * @dapm: DAPM context | |
2425 | * @route: audio routes | |
2426 | * @num: number of routes | |
2427 | * | |
2428 | * Removes routes from the DAPM context. | |
2429 | */ | |
2430 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2431 | const struct snd_soc_dapm_route *route, int num) | |
2432 | { | |
2433 | int i, ret = 0; | |
2434 | ||
2435 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2436 | for (i = 0; i < num; i++) { | |
2437 | snd_soc_dapm_del_route(dapm, route); | |
2438 | route++; | |
2439 | } | |
2440 | mutex_unlock(&dapm->card->dapm_mutex); | |
2441 | ||
2442 | return ret; | |
2443 | } | |
2444 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2445 | ||
bf3a9e13 MB |
2446 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2447 | const struct snd_soc_dapm_route *route) | |
2448 | { | |
2449 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2450 | route->source, | |
2451 | true); | |
2452 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2453 | route->sink, | |
2454 | true); | |
2455 | struct snd_soc_dapm_path *path; | |
2456 | int count = 0; | |
2457 | ||
2458 | if (!source) { | |
30a6a1a4 | 2459 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2460 | route->source); |
2461 | return -ENODEV; | |
2462 | } | |
2463 | ||
2464 | if (!sink) { | |
30a6a1a4 | 2465 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2466 | route->sink); |
2467 | return -ENODEV; | |
2468 | } | |
2469 | ||
2470 | if (route->control || route->connected) | |
30a6a1a4 | 2471 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2472 | route->source, route->sink); |
2473 | ||
2474 | list_for_each_entry(path, &source->sinks, list_source) { | |
2475 | if (path->sink == sink) { | |
2476 | path->weak = 1; | |
2477 | count++; | |
2478 | } | |
2479 | } | |
2480 | ||
2481 | if (count == 0) | |
30a6a1a4 | 2482 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2483 | route->source, route->sink); |
2484 | if (count > 1) | |
30a6a1a4 | 2485 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2486 | count, route->source, route->sink); |
2487 | ||
2488 | return 0; | |
2489 | } | |
2490 | ||
2491 | /** | |
2492 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2493 | * @dapm: DAPM context | |
2494 | * @route: audio routes | |
2495 | * @num: number of routes | |
2496 | * | |
2497 | * Mark existing routes matching those specified in the passed array | |
2498 | * as being weak, meaning that they are ignored for the purpose of | |
2499 | * power decisions. The main intended use case is for sidetone paths | |
2500 | * which couple audio between other independent paths if they are both | |
2501 | * active in order to make the combination work better at the user | |
2502 | * level but which aren't intended to be "used". | |
2503 | * | |
2504 | * Note that CODEC drivers should not use this as sidetone type paths | |
2505 | * can frequently also be used as bypass paths. | |
2506 | */ | |
2507 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2508 | const struct snd_soc_dapm_route *route, int num) | |
2509 | { | |
2510 | int i, err; | |
2511 | int ret = 0; | |
2512 | ||
a73fb2df | 2513 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2514 | for (i = 0; i < num; i++) { |
2515 | err = snd_soc_dapm_weak_route(dapm, route); | |
2516 | if (err) | |
2517 | ret = err; | |
2518 | route++; | |
2519 | } | |
a73fb2df | 2520 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2521 | |
2522 | return ret; | |
2523 | } | |
2524 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2525 | ||
2b97eabc RP |
2526 | /** |
2527 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2528 | * @dapm: DAPM context |
2b97eabc RP |
2529 | * |
2530 | * Checks the codec for any new dapm widgets and creates them if found. | |
2531 | * | |
2532 | * Returns 0 for success. | |
2533 | */ | |
824ef826 | 2534 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2535 | { |
2536 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2537 | unsigned int val; |
2b97eabc | 2538 | |
95dd5cd6 | 2539 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2540 | |
95dd5cd6 | 2541 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2542 | { |
2543 | if (w->new) | |
2544 | continue; | |
2545 | ||
fad59888 SW |
2546 | if (w->num_kcontrols) { |
2547 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2548 | sizeof(struct snd_kcontrol *), | |
2549 | GFP_KERNEL); | |
a73fb2df | 2550 | if (!w->kcontrols) { |
95dd5cd6 | 2551 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2552 | return -ENOMEM; |
a73fb2df | 2553 | } |
fad59888 SW |
2554 | } |
2555 | ||
2b97eabc RP |
2556 | switch(w->id) { |
2557 | case snd_soc_dapm_switch: | |
2558 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2559 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2560 | dapm_new_mixer(w); |
2b97eabc RP |
2561 | break; |
2562 | case snd_soc_dapm_mux: | |
4b80b8c2 | 2563 | dapm_new_mux(w); |
2b97eabc | 2564 | break; |
2b97eabc | 2565 | case snd_soc_dapm_pga: |
d88429a6 | 2566 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2567 | dapm_new_pga(w); |
2b97eabc | 2568 | break; |
7ca3a18b | 2569 | default: |
2b97eabc RP |
2570 | break; |
2571 | } | |
b66a70d5 MB |
2572 | |
2573 | /* Read the initial power state from the device */ | |
2574 | if (w->reg >= 0) { | |
ce0fc93a | 2575 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2576 | val = val >> w->shift; |
de9ba98b LPC |
2577 | val &= w->mask; |
2578 | if (val == w->on_val) | |
b66a70d5 MB |
2579 | w->power = 1; |
2580 | } | |
2581 | ||
2b97eabc | 2582 | w->new = 1; |
d5d1e0be | 2583 | |
7508b12a | 2584 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2585 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2586 | } |
2587 | ||
95dd5cd6 LPC |
2588 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2589 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2590 | return 0; |
2591 | } | |
2592 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2593 | ||
2594 | /** | |
2595 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2596 | * @kcontrol: mixer control | |
ac11a2b3 | 2597 | * @ucontrol: control element information |
2b97eabc RP |
2598 | * |
2599 | * Callback to get the value of a dapm mixer control. | |
2600 | * | |
2601 | * Returns 0 for success. | |
2602 | */ | |
2603 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2604 | struct snd_ctl_elem_value *ucontrol) | |
2605 | { | |
ce0fc93a LPC |
2606 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2607 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2608 | struct soc_mixer_control *mc = |
2609 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2610 | int reg = mc->reg; |
815ecf8d | 2611 | unsigned int shift = mc->shift; |
4eaa9819 | 2612 | int max = mc->max; |
815ecf8d | 2613 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2614 | unsigned int invert = mc->invert; |
57295073 | 2615 | unsigned int val; |
ce0fc93a | 2616 | int ret = 0; |
da602ab8 BT |
2617 | |
2618 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2619 | dev_warn(dapm->dev, |
30a6a1a4 | 2620 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2621 | kcontrol->id.name); |
2b97eabc | 2622 | |
57295073 | 2623 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2624 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2625 | ret = soc_dapm_read(dapm, reg, &val); | |
2626 | val = (val >> shift) & mask; | |
2627 | } else { | |
57295073 | 2628 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2629 | } |
57295073 LPC |
2630 | mutex_unlock(&card->dapm_mutex); |
2631 | ||
da602ab8 | 2632 | if (invert) |
57295073 LPC |
2633 | ucontrol->value.integer.value[0] = max - val; |
2634 | else | |
2635 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2636 | |
ce0fc93a | 2637 | return ret; |
2b97eabc RP |
2638 | } |
2639 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2640 | ||
2641 | /** | |
2642 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2643 | * @kcontrol: mixer control | |
ac11a2b3 | 2644 | * @ucontrol: control element information |
2b97eabc RP |
2645 | * |
2646 | * Callback to set the value of a dapm mixer control. | |
2647 | * | |
2648 | * Returns 0 for success. | |
2649 | */ | |
2650 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2651 | struct snd_ctl_elem_value *ucontrol) | |
2652 | { | |
ce0fc93a LPC |
2653 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2654 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2655 | struct soc_mixer_control *mc = |
2656 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2657 | int reg = mc->reg; |
815ecf8d | 2658 | unsigned int shift = mc->shift; |
4eaa9819 | 2659 | int max = mc->max; |
815ecf8d JS |
2660 | unsigned int mask = (1 << fls(max)) - 1; |
2661 | unsigned int invert = mc->invert; | |
e9cf7049 | 2662 | unsigned int val; |
18626c7e | 2663 | int connect, change, reg_change = 0; |
97404f2e | 2664 | struct snd_soc_dapm_update update; |
52765976 | 2665 | int ret = 0; |
2b97eabc | 2666 | |
da602ab8 | 2667 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 2668 | dev_warn(dapm->dev, |
30a6a1a4 | 2669 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2670 | kcontrol->id.name); |
2671 | ||
2b97eabc | 2672 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2673 | connect = !!val; |
2b97eabc RP |
2674 | |
2675 | if (invert) | |
a7a4ac86 | 2676 | val = max - val; |
2b97eabc | 2677 | |
3cd04343 | 2678 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2679 | |
249ce138 | 2680 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 2681 | |
18626c7e JN |
2682 | if (reg != SND_SOC_NOPM) { |
2683 | mask = mask << shift; | |
2684 | val = val << shift; | |
2685 | ||
ce0fc93a | 2686 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
2687 | } |
2688 | ||
2689 | if (change || reg_change) { | |
2690 | if (reg_change) { | |
2691 | update.kcontrol = kcontrol; | |
2692 | update.reg = reg; | |
2693 | update.mask = mask; | |
2694 | update.val = val; | |
2695 | card->update = &update; | |
249ce138 | 2696 | } |
18626c7e | 2697 | change |= reg_change; |
97404f2e | 2698 | |
52765976 | 2699 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2700 | |
564c6504 | 2701 | card->update = NULL; |
283375ce MB |
2702 | } |
2703 | ||
a73fb2df | 2704 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2705 | |
2706 | if (ret > 0) | |
2707 | soc_dpcm_runtime_update(card); | |
2708 | ||
56a67834 | 2709 | return change; |
2b97eabc RP |
2710 | } |
2711 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2712 | ||
2713 | /** | |
2714 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2715 | * @kcontrol: mixer control | |
ac11a2b3 | 2716 | * @ucontrol: control element information |
2b97eabc RP |
2717 | * |
2718 | * Callback to get the value of a dapm enumerated double mixer control. | |
2719 | * | |
2720 | * Returns 0 for success. | |
2721 | */ | |
2722 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2723 | struct snd_ctl_elem_value *ucontrol) | |
2724 | { | |
ce0fc93a | 2725 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2b97eabc | 2726 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2727 | unsigned int reg_val, val; |
52765976 | 2728 | |
69128316 GU |
2729 | if (e->reg != SND_SOC_NOPM) { |
2730 | int ret = soc_dapm_read(dapm, e->reg, ®_val); | |
2731 | if (ret) | |
2732 | return ret; | |
2733 | } else { | |
236aaa68 | 2734 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 2735 | } |
2e72f8e3 | 2736 | |
2e72f8e3 | 2737 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 2738 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
2739 | if (e->shift_l != e->shift_r) { |
2740 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
2741 | val = snd_soc_enum_val_to_item(e, val); |
2742 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
2743 | } |
2744 | ||
69128316 | 2745 | return 0; |
2e72f8e3 | 2746 | } |
2b97eabc | 2747 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
2748 | |
2749 | /** | |
2b97eabc | 2750 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
2751 | * @kcontrol: mixer control |
2752 | * @ucontrol: control element information | |
2753 | * | |
2b97eabc | 2754 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
2755 | * |
2756 | * Returns 0 for success. | |
2757 | */ | |
2b97eabc | 2758 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
2759 | struct snd_ctl_elem_value *ucontrol) |
2760 | { | |
ce0fc93a LPC |
2761 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2762 | struct snd_soc_card *card = dapm->card; | |
74155556 | 2763 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2764 | unsigned int *item = ucontrol->value.enumerated.item; |
2765 | unsigned int val, change; | |
46f5822f | 2766 | unsigned int mask; |
97404f2e | 2767 | struct snd_soc_dapm_update update; |
52765976 | 2768 | int ret = 0; |
2e72f8e3 | 2769 | |
3727b496 | 2770 | if (item[0] >= e->items) |
2e72f8e3 | 2771 | return -EINVAL; |
3727b496 LPC |
2772 | |
2773 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
2774 | mask = e->mask << e->shift_l; |
2775 | if (e->shift_l != e->shift_r) { | |
3727b496 | 2776 | if (item[1] > e->items) |
2e72f8e3 | 2777 | return -EINVAL; |
3727b496 | 2778 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
2779 | mask |= e->mask << e->shift_r; |
2780 | } | |
2781 | ||
3cd04343 | 2782 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2783 | |
236aaa68 | 2784 | if (e->reg != SND_SOC_NOPM) |
ce0fc93a | 2785 | change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 LPC |
2786 | else |
2787 | change = dapm_kcontrol_set_value(kcontrol, val); | |
2788 | ||
fafd2176 | 2789 | if (change) { |
236aaa68 LPC |
2790 | if (e->reg != SND_SOC_NOPM) { |
2791 | update.kcontrol = kcontrol; | |
2792 | update.reg = e->reg; | |
2793 | update.mask = mask; | |
2794 | update.val = val; | |
2795 | card->update = &update; | |
2796 | } | |
1642e3d4 | 2797 | |
3727b496 | 2798 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 2799 | |
564c6504 | 2800 | card->update = NULL; |
fafd2176 | 2801 | } |
2e72f8e3 | 2802 | |
a73fb2df | 2803 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2804 | |
2805 | if (ret > 0) | |
2806 | soc_dpcm_runtime_update(card); | |
2807 | ||
97404f2e | 2808 | return change; |
2e72f8e3 | 2809 | } |
2b97eabc | 2810 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 2811 | |
8b37dbd2 MB |
2812 | /** |
2813 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2814 | * | |
2815 | * @kcontrol: mixer control | |
2816 | * @uinfo: control element information | |
2817 | * | |
2818 | * Callback to provide information about a pin switch control. | |
2819 | */ | |
2820 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2821 | struct snd_ctl_elem_info *uinfo) | |
2822 | { | |
2823 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2824 | uinfo->count = 1; | |
2825 | uinfo->value.integer.min = 0; | |
2826 | uinfo->value.integer.max = 1; | |
2827 | ||
2828 | return 0; | |
2829 | } | |
2830 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2831 | ||
2832 | /** | |
2833 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2834 | * | |
2835 | * @kcontrol: mixer control | |
2836 | * @ucontrol: Value | |
2837 | */ | |
2838 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2839 | struct snd_ctl_elem_value *ucontrol) | |
2840 | { | |
48a8c394 | 2841 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2842 | const char *pin = (const char *)kcontrol->private_value; |
2843 | ||
3cd04343 | 2844 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2845 | |
2846 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2847 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2848 | |
a73fb2df | 2849 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2850 | |
2851 | return 0; | |
2852 | } | |
2853 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2854 | ||
2855 | /** | |
2856 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2857 | * | |
2858 | * @kcontrol: mixer control | |
2859 | * @ucontrol: Value | |
2860 | */ | |
2861 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2862 | struct snd_ctl_elem_value *ucontrol) | |
2863 | { | |
48a8c394 | 2864 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2865 | const char *pin = (const char *)kcontrol->private_value; |
2866 | ||
8b37dbd2 | 2867 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 2868 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2869 | else |
48a8c394 | 2870 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 2871 | |
a73fb2df | 2872 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
2873 | return 0; |
2874 | } | |
2875 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2876 | ||
5ba06fc9 MB |
2877 | static struct snd_soc_dapm_widget * |
2878 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
2879 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
2880 | { |
2881 | struct snd_soc_dapm_widget *w; | |
94f99c87 | 2882 | const char *prefix; |
62ea874a | 2883 | int ret; |
2b97eabc RP |
2884 | |
2885 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 2886 | return NULL; |
2b97eabc | 2887 | |
62ea874a MB |
2888 | switch (w->id) { |
2889 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
2890 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
2891 | if (IS_ERR(w->regulator)) { | |
2892 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 2893 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 2894 | w->name, ret); |
5ba06fc9 | 2895 | return NULL; |
62ea874a | 2896 | } |
8784c77a | 2897 | |
de9ba98b | 2898 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
2899 | ret = regulator_allow_bypass(w->regulator, true); |
2900 | if (ret != 0) | |
2901 | dev_warn(w->dapm->dev, | |
30686c35 | 2902 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
2903 | w->name, ret); |
2904 | } | |
62ea874a | 2905 | break; |
d7e7eb91 | 2906 | case snd_soc_dapm_clock_supply: |
165961ef | 2907 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 2908 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
2909 | if (IS_ERR(w->clk)) { |
2910 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 2911 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
2912 | w->name, ret); |
2913 | return NULL; | |
2914 | } | |
ec02995a MB |
2915 | #else |
2916 | return NULL; | |
2917 | #endif | |
d7e7eb91 | 2918 | break; |
62ea874a MB |
2919 | default: |
2920 | break; | |
2921 | } | |
2b97eabc | 2922 | |
94f99c87 LPC |
2923 | prefix = soc_dapm_prefix(dapm); |
2924 | if (prefix) | |
2925 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); | |
2b581074 LPC |
2926 | else |
2927 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
2928 | ||
ead9b919 JN |
2929 | if (w->name == NULL) { |
2930 | kfree(w); | |
5ba06fc9 | 2931 | return NULL; |
ead9b919 | 2932 | } |
ead9b919 | 2933 | |
7ca3a18b | 2934 | switch (w->id) { |
6dd98b0a LPC |
2935 | case snd_soc_dapm_mic: |
2936 | case snd_soc_dapm_input: | |
2937 | w->is_source = 1; | |
7ca3a18b MB |
2938 | w->power_check = dapm_generic_check_power; |
2939 | break; | |
6dd98b0a LPC |
2940 | case snd_soc_dapm_spk: |
2941 | case snd_soc_dapm_hp: | |
2942 | case snd_soc_dapm_output: | |
2943 | w->is_sink = 1; | |
7ca3a18b MB |
2944 | w->power_check = dapm_generic_check_power; |
2945 | break; | |
6dd98b0a LPC |
2946 | case snd_soc_dapm_vmid: |
2947 | case snd_soc_dapm_siggen: | |
2948 | w->is_source = 1; | |
2949 | w->power_check = dapm_always_on_check_power; | |
2950 | break; | |
2951 | case snd_soc_dapm_mux: | |
2952 | case snd_soc_dapm_switch: | |
2953 | case snd_soc_dapm_mixer: | |
2954 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
2955 | case snd_soc_dapm_adc: |
2956 | case snd_soc_dapm_aif_out: | |
2957 | case snd_soc_dapm_dac: | |
2958 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
2959 | case snd_soc_dapm_pga: |
2960 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 2961 | case snd_soc_dapm_micbias: |
7ca3a18b | 2962 | case snd_soc_dapm_line: |
c74184ed | 2963 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
2964 | case snd_soc_dapm_dai_out: |
2965 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
2966 | w->power_check = dapm_generic_check_power; |
2967 | break; | |
2968 | case snd_soc_dapm_supply: | |
62ea874a | 2969 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2970 | case snd_soc_dapm_clock_supply: |
57295073 | 2971 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 2972 | w->is_supply = 1; |
7ca3a18b MB |
2973 | w->power_check = dapm_supply_check_power; |
2974 | break; | |
2975 | default: | |
2976 | w->power_check = dapm_always_on_check_power; | |
2977 | break; | |
2978 | } | |
2979 | ||
ce6120cc | 2980 | w->dapm = dapm; |
b2d9de54 JN |
2981 | if (dapm->component) |
2982 | w->codec = dapm->component->codec; | |
2b97eabc RP |
2983 | INIT_LIST_HEAD(&w->sources); |
2984 | INIT_LIST_HEAD(&w->sinks); | |
2985 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 2986 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 2987 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2988 | |
2989 | /* machine layer set ups unconnected pins and insertions */ | |
2990 | w->connected = 1; | |
5ba06fc9 | 2991 | return w; |
2b97eabc | 2992 | } |
2b97eabc | 2993 | |
4ba1327a MB |
2994 | /** |
2995 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2996 | * @dapm: DAPM context |
4ba1327a MB |
2997 | * @widget: widget array |
2998 | * @num: number of widgets | |
2999 | * | |
3000 | * Creates new DAPM controls based upon the templates. | |
3001 | * | |
3002 | * Returns 0 for success else error. | |
3003 | */ | |
ce6120cc | 3004 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3005 | const struct snd_soc_dapm_widget *widget, |
3006 | int num) | |
3007 | { | |
5ba06fc9 MB |
3008 | struct snd_soc_dapm_widget *w; |
3009 | int i; | |
60884c27 | 3010 | int ret = 0; |
4ba1327a | 3011 | |
a73fb2df | 3012 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3013 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3014 | w = snd_soc_dapm_new_control(dapm, widget); |
3015 | if (!w) { | |
f7d41ae8 | 3016 | dev_err(dapm->dev, |
5ba06fc9 MB |
3017 | "ASoC: Failed to create DAPM control %s\n", |
3018 | widget->name); | |
60884c27 DC |
3019 | ret = -ENOMEM; |
3020 | break; | |
b8b33cb5 | 3021 | } |
4ba1327a MB |
3022 | widget++; |
3023 | } | |
a73fb2df | 3024 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3025 | return ret; |
4ba1327a MB |
3026 | } |
3027 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3028 | ||
c74184ed MB |
3029 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3030 | struct snd_kcontrol *kcontrol, int event) | |
3031 | { | |
3032 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3033 | struct snd_soc_dai *source, *sink; | |
3034 | const struct snd_soc_pcm_stream *config = w->params; | |
3035 | struct snd_pcm_substream substream; | |
9747cec2 | 3036 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3037 | u64 fmt; |
3038 | int ret; | |
3039 | ||
bf4edea8 TI |
3040 | if (WARN_ON(!config) || |
3041 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3042 | return -EINVAL; | |
c74184ed MB |
3043 | |
3044 | /* We only support a single source and sink, pick the first */ | |
3045 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3046 | list_sink); | |
3047 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3048 | list_source); | |
3049 | ||
bf4edea8 TI |
3050 | if (WARN_ON(!source_p || !sink_p) || |
3051 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3052 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3053 | return -EINVAL; | |
c74184ed MB |
3054 | |
3055 | source = source_p->source->priv; | |
3056 | sink = sink_p->sink->priv; | |
3057 | ||
3058 | /* Be a little careful as we don't want to overflow the mask array */ | |
3059 | if (config->formats) { | |
3060 | fmt = ffs(config->formats) - 1; | |
3061 | } else { | |
30a6a1a4 | 3062 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3063 | config->formats); |
3064 | fmt = 0; | |
3065 | } | |
3066 | ||
3067 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3068 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3069 | if (!params) { | |
3070 | ret = -ENOMEM; | |
3071 | goto out; | |
3072 | } | |
3073 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3074 | |
9747cec2 | 3075 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3076 | config->rate_min; |
9747cec2 | 3077 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3078 | config->rate_max; |
3079 | ||
9747cec2 | 3080 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3081 | = config->channels_min; |
9747cec2 | 3082 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3083 | = config->channels_max; |
3084 | ||
3085 | memset(&substream, 0, sizeof(substream)); | |
3086 | ||
3087 | switch (event) { | |
3088 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3089 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3090 | ret = soc_dai_hw_params(&substream, params, source); | |
3091 | if (ret < 0) | |
3092 | goto out; | |
c74184ed | 3093 | |
93e6958a BC |
3094 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3095 | ret = soc_dai_hw_params(&substream, params, sink); | |
3096 | if (ret < 0) | |
3097 | goto out; | |
c74184ed MB |
3098 | break; |
3099 | ||
3100 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3101 | ret = snd_soc_dai_digital_mute(sink, 0, |
3102 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3103 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3104 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3105 | ret = 0; |
c74184ed MB |
3106 | break; |
3107 | ||
3108 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3109 | ret = snd_soc_dai_digital_mute(sink, 1, |
3110 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3111 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3112 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3113 | ret = 0; |
c74184ed MB |
3114 | break; |
3115 | ||
3116 | default: | |
a6ed0608 | 3117 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3118 | return -EINVAL; |
3119 | } | |
3120 | ||
9747cec2 MB |
3121 | out: |
3122 | kfree(params); | |
3123 | return ret; | |
c74184ed MB |
3124 | } |
3125 | ||
3126 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3127 | const struct snd_soc_pcm_stream *params, | |
3128 | struct snd_soc_dapm_widget *source, | |
3129 | struct snd_soc_dapm_widget *sink) | |
3130 | { | |
c74184ed MB |
3131 | struct snd_soc_dapm_widget template; |
3132 | struct snd_soc_dapm_widget *w; | |
3133 | size_t len; | |
3134 | char *link_name; | |
fe83897f | 3135 | int ret; |
c74184ed MB |
3136 | |
3137 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3138 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3139 | if (!link_name) | |
3140 | return -ENOMEM; | |
3141 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3142 | ||
3143 | memset(&template, 0, sizeof(template)); | |
3144 | template.reg = SND_SOC_NOPM; | |
3145 | template.id = snd_soc_dapm_dai_link; | |
3146 | template.name = link_name; | |
3147 | template.event = snd_soc_dai_link_event; | |
3148 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3149 | SND_SOC_DAPM_PRE_PMD; | |
3150 | ||
30a6a1a4 | 3151 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3152 | |
3153 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3154 | if (!w) { | |
30a6a1a4 | 3155 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3156 | link_name); |
3157 | return -ENOMEM; | |
3158 | } | |
3159 | ||
3160 | w->params = params; | |
3161 | ||
fe83897f LPC |
3162 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3163 | if (ret) | |
3164 | return ret; | |
3165 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); | |
c74184ed MB |
3166 | } |
3167 | ||
888df395 MB |
3168 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3169 | struct snd_soc_dai *dai) | |
2b97eabc | 3170 | { |
888df395 | 3171 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3172 | struct snd_soc_dapm_widget *w; |
3173 | ||
888df395 MB |
3174 | WARN_ON(dapm->dev != dai->dev); |
3175 | ||
3176 | memset(&template, 0, sizeof(template)); | |
3177 | template.reg = SND_SOC_NOPM; | |
3178 | ||
3179 | if (dai->driver->playback.stream_name) { | |
4616274d | 3180 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3181 | template.name = dai->driver->playback.stream_name; |
3182 | template.sname = dai->driver->playback.stream_name; | |
3183 | ||
30a6a1a4 | 3184 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3185 | template.name); |
3186 | ||
3187 | w = snd_soc_dapm_new_control(dapm, &template); | |
3188 | if (!w) { | |
30a6a1a4 | 3189 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3190 | dai->driver->playback.stream_name); |
298402a3 | 3191 | return -ENOMEM; |
888df395 MB |
3192 | } |
3193 | ||
3194 | w->priv = dai; | |
3195 | dai->playback_widget = w; | |
3196 | } | |
3197 | ||
3198 | if (dai->driver->capture.stream_name) { | |
4616274d | 3199 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3200 | template.name = dai->driver->capture.stream_name; |
3201 | template.sname = dai->driver->capture.stream_name; | |
3202 | ||
30a6a1a4 | 3203 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3204 | template.name); |
3205 | ||
3206 | w = snd_soc_dapm_new_control(dapm, &template); | |
3207 | if (!w) { | |
30a6a1a4 | 3208 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3209 | dai->driver->capture.stream_name); |
298402a3 | 3210 | return -ENOMEM; |
888df395 MB |
3211 | } |
3212 | ||
3213 | w->priv = dai; | |
3214 | dai->capture_widget = w; | |
3215 | } | |
3216 | ||
3217 | return 0; | |
3218 | } | |
3219 | ||
3220 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3221 | { | |
3222 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3223 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3224 | struct snd_soc_dai *dai; |
888df395 MB |
3225 | |
3226 | /* For each DAI widget... */ | |
3227 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3228 | switch (dai_w->id) { |
3229 | case snd_soc_dapm_dai_in: | |
3230 | case snd_soc_dapm_dai_out: | |
3231 | break; | |
3232 | default: | |
2b97eabc | 3233 | continue; |
4616274d | 3234 | } |
888df395 MB |
3235 | |
3236 | dai = dai_w->priv; | |
3237 | ||
3238 | /* ...find all widgets with the same stream and link them */ | |
3239 | list_for_each_entry(w, &card->widgets, list) { | |
3240 | if (w->dapm != dai_w->dapm) | |
3241 | continue; | |
3242 | ||
4616274d MB |
3243 | switch (w->id) { |
3244 | case snd_soc_dapm_dai_in: | |
3245 | case snd_soc_dapm_dai_out: | |
888df395 | 3246 | continue; |
4616274d MB |
3247 | default: |
3248 | break; | |
3249 | } | |
888df395 | 3250 | |
19c2c5f5 | 3251 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3252 | continue; |
3253 | ||
0f9bd7b1 LPC |
3254 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3255 | src = dai_w; | |
3256 | sink = w; | |
3257 | } else { | |
3258 | src = w; | |
3259 | sink = dai_w; | |
2b97eabc | 3260 | } |
0f9bd7b1 LPC |
3261 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3262 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3263 | } |
3264 | } | |
2b97eabc | 3265 | |
888df395 MB |
3266 | return 0; |
3267 | } | |
64a648c2 | 3268 | |
44ba2641 BC |
3269 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3270 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3271 | { |
44ba2641 | 3272 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3273 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3274 | int i; |
3275 | ||
44ba2641 BC |
3276 | for (i = 0; i < rtd->num_codecs; i++) { |
3277 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f LG |
3278 | |
3279 | /* there is no point in connecting BE DAI links with dummies */ | |
3280 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3281 | snd_soc_dai_is_dummy(cpu_dai)) | |
3282 | continue; | |
3283 | ||
3284 | /* connect BE DAI playback if widgets are valid */ | |
3285 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3286 | source = cpu_dai->playback_widget; |
3287 | sink = codec_dai->playback_widget; | |
b893ea5f | 3288 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3289 | cpu_dai->component->name, source->name, |
3290 | codec_dai->component->name, sink->name); | |
b893ea5f | 3291 | |
9887c20b LPC |
3292 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3293 | NULL, NULL); | |
b893ea5f LG |
3294 | } |
3295 | ||
3296 | /* connect BE DAI capture if widgets are valid */ | |
3297 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3298 | source = codec_dai->capture_widget; |
3299 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3300 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3301 | codec_dai->component->name, source->name, |
3302 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3303 | |
9887c20b LPC |
3304 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3305 | NULL, NULL); | |
b893ea5f | 3306 | } |
b893ea5f LG |
3307 | } |
3308 | } | |
3309 | ||
c471fdd1 | 3310 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3311 | int event) |
2b97eabc | 3312 | { |
c471fdd1 | 3313 | struct snd_soc_dapm_widget *w; |
7bd3a6f3 | 3314 | |
c471fdd1 LPC |
3315 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3316 | w = dai->playback_widget; | |
3317 | else | |
3318 | w = dai->capture_widget; | |
fe360685 | 3319 | |
c471fdd1 LPC |
3320 | if (w) { |
3321 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b LG |
3322 | |
3323 | switch (event) { | |
3324 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3325 | w->active = 1; |
d9b0951b LG |
3326 | break; |
3327 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3328 | w->active = 0; |
d9b0951b LG |
3329 | break; |
3330 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3331 | case SND_SOC_DAPM_STREAM_RESUME: | |
3332 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3333 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3334 | break; | |
3335 | } | |
6dd98b0a LPC |
3336 | |
3337 | if (w->id == snd_soc_dapm_dai_in) | |
3338 | w->is_source = w->active; | |
3339 | else | |
3340 | w->is_sink = w->active; | |
d9b0951b | 3341 | } |
c471fdd1 | 3342 | } |
d9b0951b | 3343 | |
44ba2641 BC |
3344 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3345 | { | |
3346 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3347 | int i; | |
3348 | ||
3349 | /* for each BE DAI link... */ | |
3350 | for (i = 0; i < card->num_rtd; i++) { | |
3351 | rtd = &card->rtd[i]; | |
3352 | ||
3353 | /* | |
3354 | * dynamic FE links have no fixed DAI mapping. | |
3355 | * CODEC<->CODEC links have no direct connection. | |
3356 | */ | |
3357 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3358 | continue; | |
3359 | ||
3360 | dapm_connect_dai_link_widgets(card, rtd); | |
3361 | } | |
3362 | } | |
3363 | ||
c471fdd1 LPC |
3364 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3365 | int event) | |
3366 | { | |
44ba2641 BC |
3367 | int i; |
3368 | ||
c471fdd1 | 3369 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3370 | for (i = 0; i < rtd->num_codecs; i++) |
3371 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3372 | |
95dd5cd6 | 3373 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3374 | } |
3375 | ||
3376 | /** | |
3377 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3378 | * @rtd: PCM runtime data | |
3379 | * @stream: stream name | |
3380 | * @event: stream event | |
3381 | * | |
3382 | * Sends a stream event to the dapm core. The core then makes any | |
3383 | * necessary widget power changes. | |
3384 | * | |
3385 | * Returns 0 for success else error. | |
3386 | */ | |
d9b0951b LG |
3387 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3388 | int event) | |
ce6120cc | 3389 | { |
a73fb2df | 3390 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3391 | |
3cd04343 | 3392 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3393 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3394 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3395 | } |
2b97eabc | 3396 | |
11391100 CK |
3397 | /** |
3398 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3399 | * @dapm: DAPM context | |
3400 | * @pin: pin name | |
3401 | * | |
3402 | * Enables input/output pin and its parents or children widgets iff there is | |
3403 | * a valid audio route and active audio stream. | |
3404 | * | |
3405 | * Requires external locking. | |
3406 | * | |
3407 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3408 | * do any widget power switching. | |
3409 | */ | |
3410 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3411 | const char *pin) | |
3412 | { | |
3413 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3414 | } | |
3415 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3416 | ||
2b97eabc | 3417 | /** |
a5302181 | 3418 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3419 | * @dapm: DAPM context |
a5302181 | 3420 | * @pin: pin name |
2b97eabc | 3421 | * |
74b8f955 | 3422 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3423 | * a valid audio route and active audio stream. |
11391100 | 3424 | * |
a5302181 LG |
3425 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3426 | * do any widget power switching. | |
2b97eabc | 3427 | */ |
ce6120cc | 3428 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3429 | { |
11391100 CK |
3430 | int ret; |
3431 | ||
3432 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3433 | ||
3434 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3435 | ||
3436 | mutex_unlock(&dapm->card->dapm_mutex); | |
3437 | ||
3438 | return ret; | |
a5302181 LG |
3439 | } |
3440 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3441 | |
da34183e | 3442 | /** |
11391100 | 3443 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3444 | * @dapm: DAPM context |
da34183e MB |
3445 | * @pin: pin name |
3446 | * | |
3447 | * Enables input/output pin regardless of any other state. This is | |
3448 | * intended for use with microphone bias supplies used in microphone | |
3449 | * jack detection. | |
3450 | * | |
11391100 CK |
3451 | * Requires external locking. |
3452 | * | |
da34183e MB |
3453 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3454 | * do any widget power switching. | |
3455 | */ | |
11391100 CK |
3456 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3457 | const char *pin) | |
da34183e | 3458 | { |
91a5fca4 | 3459 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3460 | |
91a5fca4 | 3461 | if (!w) { |
30a6a1a4 | 3462 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3463 | return -EINVAL; |
0d86733c MB |
3464 | } |
3465 | ||
30a6a1a4 | 3466 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3467 | w->connected = 1; |
3468 | w->force = 1; | |
75c1f891 | 3469 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3470 | |
91a5fca4 | 3471 | return 0; |
da34183e | 3472 | } |
11391100 CK |
3473 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3474 | ||
3475 | /** | |
3476 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3477 | * @dapm: DAPM context | |
3478 | * @pin: pin name | |
3479 | * | |
3480 | * Enables input/output pin regardless of any other state. This is | |
3481 | * intended for use with microphone bias supplies used in microphone | |
3482 | * jack detection. | |
3483 | * | |
3484 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3485 | * do any widget power switching. | |
3486 | */ | |
3487 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3488 | const char *pin) | |
3489 | { | |
3490 | int ret; | |
3491 | ||
3492 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3493 | ||
3494 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3495 | ||
3496 | mutex_unlock(&dapm->card->dapm_mutex); | |
3497 | ||
3498 | return ret; | |
3499 | } | |
da34183e MB |
3500 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3501 | ||
11391100 CK |
3502 | /** |
3503 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3504 | * @dapm: DAPM context | |
3505 | * @pin: pin name | |
3506 | * | |
3507 | * Disables input/output pin and its parents or children widgets. | |
3508 | * | |
3509 | * Requires external locking. | |
3510 | * | |
3511 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3512 | * do any widget power switching. | |
3513 | */ | |
3514 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3515 | const char *pin) | |
3516 | { | |
3517 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3518 | } | |
3519 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3520 | ||
a5302181 LG |
3521 | /** |
3522 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3523 | * @dapm: DAPM context |
a5302181 LG |
3524 | * @pin: pin name |
3525 | * | |
74b8f955 | 3526 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3527 | * |
a5302181 LG |
3528 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3529 | * do any widget power switching. | |
3530 | */ | |
ce6120cc LG |
3531 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3532 | const char *pin) | |
a5302181 | 3533 | { |
11391100 CK |
3534 | int ret; |
3535 | ||
3536 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3537 | ||
3538 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3539 | ||
3540 | mutex_unlock(&dapm->card->dapm_mutex); | |
3541 | ||
3542 | return ret; | |
2b97eabc | 3543 | } |
a5302181 | 3544 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3545 | |
11391100 CK |
3546 | /** |
3547 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3548 | * @dapm: DAPM context | |
3549 | * @pin: pin name | |
3550 | * | |
3551 | * Marks the specified pin as being not connected, disabling it along | |
3552 | * any parent or child widgets. At present this is identical to | |
3553 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3554 | * additional things such as disabling controls which only affect | |
3555 | * paths through the pin. | |
3556 | * | |
3557 | * Requires external locking. | |
3558 | * | |
3559 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3560 | * do any widget power switching. | |
3561 | */ | |
3562 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3563 | const char *pin) | |
3564 | { | |
3565 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3566 | } | |
3567 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3568 | ||
5817b52a MB |
3569 | /** |
3570 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3571 | * @dapm: DAPM context |
5817b52a MB |
3572 | * @pin: pin name |
3573 | * | |
3574 | * Marks the specified pin as being not connected, disabling it along | |
3575 | * any parent or child widgets. At present this is identical to | |
3576 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3577 | * additional things such as disabling controls which only affect | |
3578 | * paths through the pin. | |
3579 | * | |
3580 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3581 | * do any widget power switching. | |
3582 | */ | |
ce6120cc | 3583 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3584 | { |
11391100 CK |
3585 | int ret; |
3586 | ||
3587 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3588 | ||
3589 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3590 | ||
3591 | mutex_unlock(&dapm->card->dapm_mutex); | |
3592 | ||
3593 | return ret; | |
5817b52a MB |
3594 | } |
3595 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3596 | ||
eeec12bf | 3597 | /** |
a5302181 | 3598 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3599 | * @dapm: DAPM context |
a5302181 | 3600 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3601 | * |
a5302181 | 3602 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3603 | * |
a5302181 | 3604 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3605 | */ |
ce6120cc LG |
3606 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3607 | const char *pin) | |
eeec12bf | 3608 | { |
91a5fca4 | 3609 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3610 | |
91a5fca4 LPC |
3611 | if (w) |
3612 | return w->connected; | |
a68b38ad | 3613 | |
eeec12bf GG |
3614 | return 0; |
3615 | } | |
a5302181 | 3616 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3617 | |
1547aba9 MB |
3618 | /** |
3619 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3620 | * @dapm: DAPM context |
1547aba9 MB |
3621 | * @pin: audio signal pin endpoint (or start point) |
3622 | * | |
3623 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3624 | * system is disabled a path between two endpoints flagged as ignoring | |
3625 | * suspend will not be disabled. The path must already be enabled via | |
3626 | * normal means at suspend time, it will not be turned on if it was not | |
3627 | * already enabled. | |
3628 | */ | |
ce6120cc LG |
3629 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3630 | const char *pin) | |
1547aba9 | 3631 | { |
91a5fca4 | 3632 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3633 | |
91a5fca4 | 3634 | if (!w) { |
30a6a1a4 | 3635 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3636 | return -EINVAL; |
1547aba9 MB |
3637 | } |
3638 | ||
91a5fca4 LPC |
3639 | w->ignore_suspend = 1; |
3640 | ||
3641 | return 0; | |
1547aba9 MB |
3642 | } |
3643 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3644 | ||
cdc4508b LPC |
3645 | /** |
3646 | * dapm_is_external_path() - Checks if a path is a external path | |
3647 | * @card: The card the path belongs to | |
3648 | * @path: The path to check | |
3649 | * | |
3650 | * Returns true if the path is either between two different DAPM contexts or | |
3651 | * between two external pins of the same DAPM context. Otherwise returns | |
3652 | * false. | |
3653 | */ | |
3654 | static bool dapm_is_external_path(struct snd_soc_card *card, | |
3655 | struct snd_soc_dapm_path *path) | |
3656 | { | |
3657 | dev_dbg(card->dev, | |
3658 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3659 | path->source->name, path->source->id, path->source->dapm, | |
3660 | path->sink->name, path->sink->id, path->sink->dapm); | |
3661 | ||
3662 | /* Connection between two different DAPM contexts */ | |
3663 | if (path->source->dapm != path->sink->dapm) | |
3664 | return true; | |
3665 | ||
3666 | /* Loopback connection from external pin to external pin */ | |
3667 | if (path->sink->id == snd_soc_dapm_input) { | |
3668 | switch (path->source->id) { | |
3669 | case snd_soc_dapm_output: | |
3670 | case snd_soc_dapm_micbias: | |
3671 | return true; | |
3672 | default: | |
3673 | break; | |
3674 | } | |
3675 | } | |
3676 | ||
3677 | return false; | |
3678 | } | |
3679 | ||
1633281b SW |
3680 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3681 | struct snd_soc_dapm_widget *w) | |
3682 | { | |
3683 | struct snd_soc_dapm_path *p; | |
3684 | ||
cdc4508b LPC |
3685 | list_for_each_entry(p, &w->sources, list_sink) { |
3686 | if (dapm_is_external_path(card, p)) | |
3687 | return true; | |
3688 | } | |
1633281b | 3689 | |
cdc4508b LPC |
3690 | list_for_each_entry(p, &w->sinks, list_source) { |
3691 | if (dapm_is_external_path(card, p)) | |
3692 | return true; | |
1633281b SW |
3693 | } |
3694 | ||
3695 | return false; | |
3696 | } | |
3697 | ||
3698 | /** | |
7df37884 LPC |
3699 | * snd_soc_dapm_auto_nc_pins - call snd_soc_dapm_nc_pin for unused pins |
3700 | * @card: The card whose pins should be processed | |
1633281b | 3701 | * |
7df37884 LPC |
3702 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the card |
3703 | * which are unused. Pins are used if they are connected externally to a | |
3704 | * component, whether that be to some other device, or a loop-back connection to | |
3705 | * the component itself. | |
1633281b | 3706 | */ |
7df37884 | 3707 | void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card) |
1633281b | 3708 | { |
1633281b SW |
3709 | struct snd_soc_dapm_widget *w; |
3710 | ||
7df37884 | 3711 | dev_dbg(card->dev, "ASoC: Auto NC: DAPMs: card:%p\n", &card->dapm); |
1633281b SW |
3712 | |
3713 | list_for_each_entry(w, &card->widgets, list) { | |
1633281b SW |
3714 | switch (w->id) { |
3715 | case snd_soc_dapm_input: | |
3716 | case snd_soc_dapm_output: | |
3717 | case snd_soc_dapm_micbias: | |
7df37884 | 3718 | dev_dbg(card->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3719 | w->name); |
3720 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
7df37884 | 3721 | dev_dbg(card->dev, |
1633281b | 3722 | "... Not in map; disabling\n"); |
7df37884 | 3723 | snd_soc_dapm_nc_pin(w->dapm, w->name); |
1633281b SW |
3724 | } |
3725 | break; | |
3726 | default: | |
3727 | break; | |
3728 | } | |
3729 | } | |
3730 | } | |
3731 | ||
2b97eabc RP |
3732 | /** |
3733 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3734 | * @dapm: DAPM context |
2b97eabc RP |
3735 | * |
3736 | * Free all dapm widgets and resources. | |
3737 | */ | |
ce6120cc | 3738 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3739 | { |
ce6120cc | 3740 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3741 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3742 | dapm_free_widgets(dapm); |
7be31be8 | 3743 | list_del(&dapm->list); |
2b97eabc RP |
3744 | } |
3745 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3746 | ||
57996358 | 3747 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 3748 | { |
01005a72 | 3749 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3750 | struct snd_soc_dapm_widget *w; |
3751 | LIST_HEAD(down_list); | |
3752 | int powerdown = 0; | |
3753 | ||
01005a72 LG |
3754 | mutex_lock(&card->dapm_mutex); |
3755 | ||
97c866de JN |
3756 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3757 | if (w->dapm != dapm) | |
3758 | continue; | |
51737470 | 3759 | if (w->power) { |
828a842f | 3760 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3761 | w->power = 0; |
51737470 MB |
3762 | powerdown = 1; |
3763 | } | |
3764 | } | |
3765 | ||
3766 | /* If there were no widgets to power down we're already in | |
3767 | * standby. | |
3768 | */ | |
3769 | if (powerdown) { | |
7679e42e MB |
3770 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3771 | snd_soc_dapm_set_bias_level(dapm, | |
3772 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3773 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3774 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3775 | snd_soc_dapm_set_bias_level(dapm, | |
3776 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3777 | } |
01005a72 LG |
3778 | |
3779 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3780 | } |
3781 | ||
3782 | /* | |
3783 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3784 | */ | |
3785 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3786 | { | |
57996358 | 3787 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 3788 | |
57996358 | 3789 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
3790 | if (dapm != &card->dapm) { |
3791 | soc_dapm_shutdown_dapm(dapm); | |
3792 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
3793 | snd_soc_dapm_set_bias_level(dapm, | |
3794 | SND_SOC_BIAS_OFF); | |
3795 | } | |
ce6120cc | 3796 | } |
17282ba4 XX |
3797 | |
3798 | soc_dapm_shutdown_dapm(&card->dapm); | |
3799 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
3800 | snd_soc_dapm_set_bias_level(&card->dapm, | |
3801 | SND_SOC_BIAS_OFF); | |
51737470 MB |
3802 | } |
3803 | ||
2b97eabc | 3804 | /* Module information */ |
d331124d | 3805 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3806 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3807 | MODULE_LICENSE("GPL"); |