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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 MB |
61 | [snd_soc_dapm_pre] = 0, |
62 | [snd_soc_dapm_supply] = 1, | |
62ea874a | 63 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 64 | [snd_soc_dapm_clock_supply] = 1, |
38357ab2 | 65 | [snd_soc_dapm_micbias] = 2, |
c74184ed | 66 | [snd_soc_dapm_dai_link] = 2, |
4616274d MB |
67 | [snd_soc_dapm_dai_in] = 3, |
68 | [snd_soc_dapm_dai_out] = 3, | |
010ff262 MB |
69 | [snd_soc_dapm_aif_in] = 3, |
70 | [snd_soc_dapm_aif_out] = 3, | |
71 | [snd_soc_dapm_mic] = 4, | |
72 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 73 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
74 | [snd_soc_dapm_value_mux] = 5, |
75 | [snd_soc_dapm_dac] = 6, | |
efc77e36 | 76 | [snd_soc_dapm_switch] = 7, |
010ff262 MB |
77 | [snd_soc_dapm_mixer] = 7, |
78 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
79 | [snd_soc_dapm_pga] = 8, | |
80 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 81 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
82 | [snd_soc_dapm_hp] = 10, |
83 | [snd_soc_dapm_spk] = 10, | |
7e1f7c8a | 84 | [snd_soc_dapm_line] = 10, |
57295073 LPC |
85 | [snd_soc_dapm_kcontrol] = 11, |
86 | [snd_soc_dapm_post] = 12, | |
2b97eabc | 87 | }; |
ca9c1aae | 88 | |
2b97eabc | 89 | static int dapm_down_seq[] = { |
38357ab2 | 90 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
91 | [snd_soc_dapm_kcontrol] = 1, |
92 | [snd_soc_dapm_adc] = 2, | |
93 | [snd_soc_dapm_hp] = 3, | |
94 | [snd_soc_dapm_spk] = 3, | |
95 | [snd_soc_dapm_line] = 3, | |
96 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 97 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 98 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 99 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
100 | [snd_soc_dapm_mixer] = 5, |
101 | [snd_soc_dapm_dac] = 6, | |
102 | [snd_soc_dapm_mic] = 7, | |
103 | [snd_soc_dapm_micbias] = 8, | |
104 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 105 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 106 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
107 | [snd_soc_dapm_aif_in] = 10, |
108 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
109 | [snd_soc_dapm_dai_in] = 10, |
110 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 111 | [snd_soc_dapm_dai_link] = 11, |
d7e7eb91 | 112 | [snd_soc_dapm_clock_supply] = 12, |
c74184ed MB |
113 | [snd_soc_dapm_regulator_supply] = 12, |
114 | [snd_soc_dapm_supply] = 12, | |
115 | [snd_soc_dapm_post] = 13, | |
2b97eabc RP |
116 | }; |
117 | ||
12ef193d | 118 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
119 | { |
120 | if (pop_time) | |
121 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
122 | } | |
123 | ||
fd8d3bc0 | 124 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
125 | { |
126 | va_list args; | |
fd8d3bc0 | 127 | char *buf; |
15e4c72f | 128 | |
fd8d3bc0 JN |
129 | if (!pop_time) |
130 | return; | |
15e4c72f | 131 | |
fd8d3bc0 JN |
132 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
133 | if (buf == NULL) | |
134 | return; | |
15e4c72f | 135 | |
fd8d3bc0 JN |
136 | va_start(args, fmt); |
137 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 138 | dev_info(dev, "%s", buf); |
15e4c72f | 139 | va_end(args); |
fd8d3bc0 JN |
140 | |
141 | kfree(buf); | |
15e4c72f MB |
142 | } |
143 | ||
db432b41 MB |
144 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
145 | { | |
146 | return !list_empty(&w->dirty); | |
147 | } | |
148 | ||
25c77c5f | 149 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 150 | { |
75c1f891 MB |
151 | if (!dapm_dirty_widget(w)) { |
152 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
153 | w->name, reason); | |
db432b41 | 154 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 155 | } |
db432b41 | 156 | } |
25c77c5f | 157 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 158 | |
e2d32ff6 MB |
159 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
160 | { | |
161 | struct snd_soc_card *card = dapm->card; | |
162 | struct snd_soc_dapm_widget *w; | |
163 | ||
164 | mutex_lock(&card->dapm_mutex); | |
165 | ||
166 | list_for_each_entry(w, &card->widgets, list) { | |
167 | switch (w->id) { | |
168 | case snd_soc_dapm_input: | |
169 | case snd_soc_dapm_output: | |
170 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
171 | break; | |
172 | default: | |
173 | break; | |
174 | } | |
175 | } | |
176 | ||
177 | mutex_unlock(&card->dapm_mutex); | |
178 | } | |
179 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
180 | ||
2b97eabc | 181 | /* create a new dapm widget */ |
88cb4290 | 182 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
183 | const struct snd_soc_dapm_widget *_widget) |
184 | { | |
88cb4290 | 185 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
186 | } |
187 | ||
e84357f7 | 188 | struct dapm_kcontrol_data { |
cf7c1de2 | 189 | unsigned int value; |
57295073 | 190 | struct snd_soc_dapm_widget *widget; |
5106b92f | 191 | struct list_head paths; |
2c75bdf3 | 192 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
193 | }; |
194 | ||
195 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
196 | struct snd_kcontrol *kcontrol) | |
197 | { | |
198 | struct dapm_kcontrol_data *data; | |
57295073 | 199 | struct soc_mixer_control *mc; |
e84357f7 | 200 | |
2c75bdf3 | 201 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
202 | if (!data) { |
203 | dev_err(widget->dapm->dev, | |
204 | "ASoC: can't allocate kcontrol data for %s\n", | |
205 | widget->name); | |
206 | return -ENOMEM; | |
207 | } | |
208 | ||
5106b92f | 209 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 210 | |
57295073 LPC |
211 | switch (widget->id) { |
212 | case snd_soc_dapm_switch: | |
213 | case snd_soc_dapm_mixer: | |
214 | case snd_soc_dapm_mixer_named_ctl: | |
215 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
216 | ||
217 | if (mc->autodisable) { | |
218 | struct snd_soc_dapm_widget template; | |
219 | ||
220 | memset(&template, 0, sizeof(template)); | |
221 | template.reg = mc->reg; | |
222 | template.mask = (1 << fls(mc->max)) - 1; | |
223 | template.shift = mc->shift; | |
224 | if (mc->invert) | |
225 | template.off_val = mc->max; | |
226 | else | |
227 | template.off_val = 0; | |
228 | template.on_val = template.off_val; | |
229 | template.id = snd_soc_dapm_kcontrol; | |
230 | template.name = kcontrol->id.name; | |
231 | ||
232 | data->widget = snd_soc_dapm_new_control(widget->dapm, | |
233 | &template); | |
234 | if (!data->widget) { | |
235 | kfree(data); | |
236 | return -ENOMEM; | |
237 | } | |
238 | } | |
239 | break; | |
240 | default: | |
241 | break; | |
242 | } | |
243 | ||
e84357f7 LPC |
244 | kcontrol->private_data = data; |
245 | ||
246 | return 0; | |
247 | } | |
248 | ||
249 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
250 | { | |
251 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
57295073 | 252 | kfree(data->widget); |
2c75bdf3 | 253 | kfree(data->wlist); |
e84357f7 LPC |
254 | kfree(data); |
255 | } | |
256 | ||
257 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
258 | const struct snd_kcontrol *kcontrol) | |
259 | { | |
260 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
261 | ||
2c75bdf3 | 262 | return data->wlist; |
e84357f7 LPC |
263 | } |
264 | ||
265 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
266 | struct snd_soc_dapm_widget *widget) | |
267 | { | |
268 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
269 | struct snd_soc_dapm_widget_list *new_wlist; |
270 | unsigned int n; | |
e84357f7 | 271 | |
2c75bdf3 LPC |
272 | if (data->wlist) |
273 | n = data->wlist->num_widgets + 1; | |
274 | else | |
275 | n = 1; | |
276 | ||
277 | new_wlist = krealloc(data->wlist, | |
278 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
279 | if (!new_wlist) | |
e84357f7 LPC |
280 | return -ENOMEM; |
281 | ||
2c75bdf3 LPC |
282 | new_wlist->widgets[n - 1] = widget; |
283 | new_wlist->num_widgets = n; | |
e84357f7 | 284 | |
2c75bdf3 | 285 | data->wlist = new_wlist; |
e84357f7 LPC |
286 | |
287 | return 0; | |
288 | } | |
289 | ||
5106b92f LPC |
290 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
291 | struct snd_soc_dapm_path *path) | |
292 | { | |
293 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
294 | ||
295 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
296 | |
297 | if (data->widget) { | |
298 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
299 | path->source, NULL, NULL); | |
300 | } | |
301 | } | |
302 | ||
303 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
304 | { | |
305 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
306 | ||
307 | if (!data->widget) | |
308 | return true; | |
309 | ||
310 | return data->widget->power; | |
5106b92f LPC |
311 | } |
312 | ||
313 | static struct list_head *dapm_kcontrol_get_path_list( | |
314 | const struct snd_kcontrol *kcontrol) | |
315 | { | |
316 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
317 | ||
318 | return &data->paths; | |
319 | } | |
320 | ||
321 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
322 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
323 | list_kcontrol) | |
324 | ||
cf7c1de2 LPC |
325 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
326 | { | |
327 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
328 | ||
329 | return data->value; | |
330 | } | |
331 | ||
332 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
333 | unsigned int value) | |
334 | { | |
335 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
336 | ||
337 | if (data->value == value) | |
338 | return false; | |
339 | ||
57295073 LPC |
340 | if (data->widget) |
341 | data->widget->on_val = value; | |
342 | ||
cf7c1de2 LPC |
343 | data->value = value; |
344 | ||
345 | return true; | |
346 | } | |
347 | ||
eee5d7f9 LPC |
348 | /** |
349 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
350 | * @kcontrol: The kcontrol | |
351 | */ | |
352 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
353 | { | |
e84357f7 | 354 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
355 | } |
356 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
357 | ||
6c120e19 LG |
358 | static void dapm_reset(struct snd_soc_card *card) |
359 | { | |
360 | struct snd_soc_dapm_widget *w; | |
361 | ||
362 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
363 | ||
364 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 365 | w->new_power = w->power; |
6c120e19 LG |
366 | w->power_checked = false; |
367 | w->inputs = -1; | |
368 | w->outputs = -1; | |
369 | } | |
370 | } | |
371 | ||
0445bdf4 LG |
372 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
373 | { | |
374 | if (w->codec) | |
375 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
376 | else if (w->platform) |
377 | return snd_soc_platform_read(w->platform, reg); | |
378 | ||
30a6a1a4 | 379 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 380 | return -1; |
0445bdf4 LG |
381 | } |
382 | ||
383 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
384 | { | |
385 | if (w->codec) | |
386 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
387 | else if (w->platform) |
388 | return snd_soc_platform_write(w->platform, reg, val); | |
389 | ||
30a6a1a4 | 390 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 391 | return -1; |
0445bdf4 LG |
392 | } |
393 | ||
49575fb5 LG |
394 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
395 | { | |
e06ab3b8 | 396 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
397 | mutex_lock(&w->codec->mutex); |
398 | else if (w->platform) | |
399 | mutex_lock(&w->platform->mutex); | |
400 | } | |
401 | ||
402 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
403 | { | |
e06ab3b8 | 404 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
405 | mutex_unlock(&w->codec->mutex); |
406 | else if (w->platform) | |
407 | mutex_unlock(&w->platform->mutex); | |
408 | } | |
409 | ||
410 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
411 | unsigned short reg, unsigned int mask, unsigned int value) |
412 | { | |
8a713da8 | 413 | bool change; |
0445bdf4 LG |
414 | unsigned int old, new; |
415 | int ret; | |
416 | ||
8a713da8 MB |
417 | if (w->codec && w->codec->using_regmap) { |
418 | ret = regmap_update_bits_check(w->codec->control_data, | |
419 | reg, mask, value, &change); | |
420 | if (ret != 0) | |
421 | return ret; | |
422 | } else { | |
49575fb5 | 423 | soc_widget_lock(w); |
8a713da8 | 424 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
425 | if (ret < 0) { |
426 | soc_widget_unlock(w); | |
0445bdf4 | 427 | return ret; |
49575fb5 | 428 | } |
8a713da8 MB |
429 | |
430 | old = ret; | |
431 | new = (old & ~mask) | (value & mask); | |
432 | change = old != new; | |
433 | if (change) { | |
434 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
435 | if (ret < 0) { |
436 | soc_widget_unlock(w); | |
8a713da8 | 437 | return ret; |
49575fb5 | 438 | } |
8a713da8 | 439 | } |
49575fb5 | 440 | soc_widget_unlock(w); |
0445bdf4 LG |
441 | } |
442 | ||
443 | return change; | |
444 | } | |
445 | ||
452c5eaa MB |
446 | /** |
447 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 448 | * @dapm: DAPM context |
452c5eaa MB |
449 | * @level: level to configure |
450 | * | |
451 | * Configure the bias (power) levels for the SoC audio device. | |
452 | * | |
453 | * Returns 0 for success else error. | |
454 | */ | |
ed5a4c47 | 455 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 456 | enum snd_soc_bias_level level) |
452c5eaa | 457 | { |
ed5a4c47 | 458 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
459 | int ret = 0; |
460 | ||
84e90930 MB |
461 | trace_snd_soc_bias_level_start(card, level); |
462 | ||
f0fba2ad | 463 | if (card && card->set_bias_level) |
d4c6005f | 464 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
465 | if (ret != 0) |
466 | goto out; | |
467 | ||
cc4c670a MB |
468 | if (dapm->codec) { |
469 | if (dapm->codec->driver->set_bias_level) | |
470 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
471 | level); | |
d8c3bb91 MB |
472 | else |
473 | dapm->bias_level = level; | |
4e872a46 | 474 | } else if (!card || dapm != &card->dapm) { |
4123128e | 475 | dapm->bias_level = level; |
4e872a46 | 476 | } |
4123128e | 477 | |
171ec6b0 MB |
478 | if (ret != 0) |
479 | goto out; | |
480 | ||
481 | if (card && card->set_bias_level_post) | |
d4c6005f | 482 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 483 | out: |
84e90930 MB |
484 | trace_snd_soc_bias_level_done(card, level); |
485 | ||
452c5eaa MB |
486 | return ret; |
487 | } | |
488 | ||
2b97eabc RP |
489 | /* set up initial codec paths */ |
490 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
491 | struct snd_soc_dapm_path *p, int i) | |
492 | { | |
493 | switch (w->id) { | |
494 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
495 | case snd_soc_dapm_mixer: |
496 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 497 | int val; |
4eaa9819 | 498 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 499 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
500 | unsigned int reg = mc->reg; |
501 | unsigned int shift = mc->shift; | |
4eaa9819 | 502 | int max = mc->max; |
815ecf8d JS |
503 | unsigned int mask = (1 << fls(max)) - 1; |
504 | unsigned int invert = mc->invert; | |
2b97eabc | 505 | |
0445bdf4 | 506 | val = soc_widget_read(w, reg); |
2b97eabc | 507 | val = (val >> shift) & mask; |
32fee7af BT |
508 | if (invert) |
509 | val = max - val; | |
2b97eabc | 510 | |
32fee7af | 511 | p->connect = !!val; |
2b97eabc RP |
512 | } |
513 | break; | |
514 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
515 | struct soc_enum *e = (struct soc_enum *) |
516 | w->kcontrol_news[i].private_value; | |
86767b7d | 517 | int val, item; |
2b97eabc | 518 | |
0445bdf4 | 519 | val = soc_widget_read(w, e->reg); |
86767b7d | 520 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 521 | |
58fee775 LPC |
522 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
523 | p->connect = 1; | |
524 | else | |
525 | p->connect = 0; | |
2b97eabc RP |
526 | } |
527 | break; | |
24ff33ac | 528 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
529 | struct soc_enum *e = (struct soc_enum *) |
530 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
531 | |
532 | p->connect = 0; | |
533 | /* since a virtual mux has no backing registers to | |
534 | * decide which path to connect, it will try to match | |
535 | * with the first enumeration. This is to ensure | |
536 | * that the default mux choice (the first) will be | |
537 | * correctly powered up during initialization. | |
538 | */ | |
539 | if (!strcmp(p->name, e->texts[0])) | |
540 | p->connect = 1; | |
541 | } | |
542 | break; | |
2e72f8e3 | 543 | case snd_soc_dapm_value_mux: { |
74155556 | 544 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 545 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
546 | int val, item; |
547 | ||
0445bdf4 | 548 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
549 | val = (val >> e->shift_l) & e->mask; |
550 | for (item = 0; item < e->max; item++) { | |
551 | if (val == e->values[item]) | |
552 | break; | |
553 | } | |
554 | ||
58fee775 LPC |
555 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
556 | p->connect = 1; | |
557 | else | |
558 | p->connect = 0; | |
2e72f8e3 PU |
559 | } |
560 | break; | |
56563100 | 561 | /* does not affect routing - always connected */ |
2b97eabc | 562 | case snd_soc_dapm_pga: |
d88429a6 | 563 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
564 | case snd_soc_dapm_output: |
565 | case snd_soc_dapm_adc: | |
566 | case snd_soc_dapm_input: | |
1ab97c8c | 567 | case snd_soc_dapm_siggen: |
2b97eabc RP |
568 | case snd_soc_dapm_dac: |
569 | case snd_soc_dapm_micbias: | |
570 | case snd_soc_dapm_vmid: | |
246d0a17 | 571 | case snd_soc_dapm_supply: |
62ea874a | 572 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 573 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
574 | case snd_soc_dapm_aif_in: |
575 | case snd_soc_dapm_aif_out: | |
4616274d MB |
576 | case snd_soc_dapm_dai_in: |
577 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
578 | case snd_soc_dapm_hp: |
579 | case snd_soc_dapm_mic: | |
580 | case snd_soc_dapm_spk: | |
581 | case snd_soc_dapm_line: | |
c74184ed | 582 | case snd_soc_dapm_dai_link: |
57295073 | 583 | case snd_soc_dapm_kcontrol: |
56563100 MB |
584 | p->connect = 1; |
585 | break; | |
586 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
587 | case snd_soc_dapm_pre: |
588 | case snd_soc_dapm_post: | |
589 | p->connect = 0; | |
590 | break; | |
591 | } | |
592 | } | |
593 | ||
74b8f955 | 594 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 595 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
596 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
597 | struct snd_soc_dapm_path *path, const char *control_name, | |
598 | const struct snd_kcontrol_new *kcontrol) | |
599 | { | |
600 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
601 | int i; | |
602 | ||
f8ba0b7b | 603 | for (i = 0; i < e->max; i++) { |
2b97eabc | 604 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 605 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
606 | list_add(&path->list_sink, &dest->sources); |
607 | list_add(&path->list_source, &src->sinks); | |
608 | path->name = (char*)e->texts[i]; | |
609 | dapm_set_path_status(dest, path, 0); | |
610 | return 0; | |
611 | } | |
612 | } | |
613 | ||
614 | return -ENODEV; | |
615 | } | |
616 | ||
74b8f955 | 617 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 618 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
619 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
620 | struct snd_soc_dapm_path *path, const char *control_name) | |
621 | { | |
622 | int i; | |
623 | ||
624 | /* search for mixer kcontrol */ | |
625 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 626 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 627 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
628 | list_add(&path->list_sink, &dest->sources); |
629 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 630 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
631 | dapm_set_path_status(dest, path, i); |
632 | return 0; | |
633 | } | |
634 | } | |
635 | return -ENODEV; | |
636 | } | |
637 | ||
af46800b | 638 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 639 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
640 | const struct snd_kcontrol_new *kcontrol_new, |
641 | struct snd_kcontrol **kcontrol) | |
642 | { | |
643 | struct snd_soc_dapm_widget *w; | |
644 | int i; | |
645 | ||
646 | *kcontrol = NULL; | |
647 | ||
648 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
649 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
650 | continue; | |
af46800b SW |
651 | for (i = 0; i < w->num_kcontrols; i++) { |
652 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
653 | if (w->kcontrols) | |
654 | *kcontrol = w->kcontrols[i]; | |
655 | return 1; | |
656 | } | |
657 | } | |
658 | } | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
85762e71 SW |
663 | /* |
664 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
665 | * create it. Either way, add the widget into the control's widget list | |
666 | */ | |
667 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 668 | int kci) |
2b97eabc | 669 | { |
4b80b8c2 | 670 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 671 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 672 | const char *prefix; |
85762e71 SW |
673 | size_t prefix_len; |
674 | int shared; | |
675 | struct snd_kcontrol *kcontrol; | |
85762e71 | 676 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
677 | char *long_name; |
678 | const char *name; | |
679 | int ret; | |
efb7ac3f MB |
680 | |
681 | if (dapm->codec) | |
682 | prefix = dapm->codec->name_prefix; | |
683 | else | |
684 | prefix = NULL; | |
2b97eabc | 685 | |
3e5ff4df MB |
686 | if (prefix) |
687 | prefix_len = strlen(prefix) + 1; | |
688 | else | |
689 | prefix_len = 0; | |
690 | ||
85762e71 SW |
691 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
692 | &kcontrol); | |
2b97eabc | 693 | |
85762e71 SW |
694 | if (!kcontrol) { |
695 | if (shared) { | |
696 | wname_in_long_name = false; | |
697 | kcname_in_long_name = true; | |
698 | } else { | |
699 | switch (w->id) { | |
700 | case snd_soc_dapm_switch: | |
701 | case snd_soc_dapm_mixer: | |
702 | wname_in_long_name = true; | |
703 | kcname_in_long_name = true; | |
704 | break; | |
705 | case snd_soc_dapm_mixer_named_ctl: | |
706 | wname_in_long_name = false; | |
707 | kcname_in_long_name = true; | |
708 | break; | |
709 | case snd_soc_dapm_mux: | |
710 | case snd_soc_dapm_virt_mux: | |
711 | case snd_soc_dapm_value_mux: | |
712 | wname_in_long_name = true; | |
713 | kcname_in_long_name = false; | |
714 | break; | |
715 | default: | |
85762e71 | 716 | return -EINVAL; |
82cd8764 | 717 | } |
85762e71 SW |
718 | } |
719 | ||
720 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
721 | /* |
722 | * The control will get a prefix from the control | |
723 | * creation process but we're also using the same | |
724 | * prefix for widgets so cut the prefix off the | |
725 | * front of the widget name. | |
ca9c1aae | 726 | */ |
2b581074 | 727 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
728 | w->name + prefix_len, |
729 | w->kcontrol_news[kci].name); | |
e84357f7 | 730 | if (long_name == NULL) |
2b581074 | 731 | return -ENOMEM; |
85762e71 SW |
732 | |
733 | name = long_name; | |
734 | } else if (wname_in_long_name) { | |
735 | long_name = NULL; | |
736 | name = w->name + prefix_len; | |
737 | } else { | |
738 | long_name = NULL; | |
739 | name = w->kcontrol_news[kci].name; | |
740 | } | |
ca9c1aae | 741 | |
e84357f7 | 742 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 743 | prefix); |
656ca9d3 | 744 | kfree(long_name); |
9356e9d5 LPC |
745 | if (!kcontrol) |
746 | return -ENOMEM; | |
747 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
748 | |
749 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
750 | if (ret) { | |
751 | snd_ctl_free_one(kcontrol); | |
752 | return ret; | |
753 | } | |
754 | ||
85762e71 SW |
755 | ret = snd_ctl_add(card, kcontrol); |
756 | if (ret < 0) { | |
757 | dev_err(dapm->dev, | |
758 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
759 | w->name, name, ret); | |
85762e71 SW |
760 | return ret; |
761 | } | |
85762e71 | 762 | } |
2b97eabc | 763 | |
2c75bdf3 LPC |
764 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
765 | if (ret) | |
766 | return ret; | |
767 | ||
85762e71 | 768 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 769 | |
85762e71 SW |
770 | return 0; |
771 | } | |
219b93f5 | 772 | |
85762e71 SW |
773 | /* create new dapm mixer control */ |
774 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
775 | { | |
776 | int i, ret; | |
777 | struct snd_soc_dapm_path *path; | |
778 | ||
779 | /* add kcontrol */ | |
780 | for (i = 0; i < w->num_kcontrols; i++) { | |
781 | /* match name */ | |
782 | list_for_each_entry(path, &w->sources, list_sink) { | |
783 | /* mixer/mux paths name must match control name */ | |
784 | if (path->name != (char *)w->kcontrol_news[i].name) | |
785 | continue; | |
786 | ||
787 | if (w->kcontrols[i]) { | |
5106b92f | 788 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 789 | continue; |
2b97eabc | 790 | } |
85762e71 | 791 | |
946d92a1 | 792 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
793 | if (ret < 0) |
794 | return ret; | |
946d92a1 MB |
795 | |
796 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
797 | } |
798 | } | |
85762e71 SW |
799 | |
800 | return 0; | |
2b97eabc RP |
801 | } |
802 | ||
803 | /* create new dapm mux control */ | |
4b80b8c2 | 804 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 805 | { |
4b80b8c2 | 806 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 807 | struct snd_soc_dapm_path *path; |
af46800b | 808 | int ret; |
2b97eabc | 809 | |
af46800b SW |
810 | if (w->num_kcontrols != 1) { |
811 | dev_err(dapm->dev, | |
30a6a1a4 | 812 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 813 | w->name); |
2b97eabc RP |
814 | return -EINVAL; |
815 | } | |
816 | ||
fe581391 | 817 | if (list_empty(&w->sources)) { |
85762e71 SW |
818 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
819 | return -EINVAL; | |
af46800b | 820 | } |
ce6120cc | 821 | |
946d92a1 | 822 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
823 | if (ret < 0) |
824 | return ret; | |
fad59888 | 825 | |
2b97eabc | 826 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 827 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 828 | |
af46800b | 829 | return 0; |
2b97eabc RP |
830 | } |
831 | ||
832 | /* create new dapm volume control */ | |
4b80b8c2 | 833 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 834 | { |
a6c65736 | 835 | if (w->num_kcontrols) |
f7d41ae8 | 836 | dev_err(w->dapm->dev, |
30a6a1a4 | 837 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 838 | |
a6c65736 | 839 | return 0; |
2b97eabc RP |
840 | } |
841 | ||
842 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
843 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
844 | struct list_head *sink) | |
2b97eabc RP |
845 | { |
846 | struct snd_soc_dapm_path *p; | |
847 | ||
1059ecfa RT |
848 | list_for_each_entry(p, sink, list_source) { |
849 | if (p->walked) { | |
850 | p->walked = 0; | |
851 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
852 | } | |
853 | } | |
2b97eabc RP |
854 | } |
855 | ||
1059ecfa RT |
856 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
857 | struct list_head *source) | |
2b97eabc RP |
858 | { |
859 | struct snd_soc_dapm_path *p; | |
860 | ||
1059ecfa RT |
861 | list_for_each_entry(p, source, list_sink) { |
862 | if (p->walked) { | |
863 | p->walked = 0; | |
864 | dapm_clear_walk_input(dapm, &p->source->sources); | |
865 | } | |
866 | } | |
2b97eabc RP |
867 | } |
868 | ||
1059ecfa | 869 | |
9949788b MB |
870 | /* We implement power down on suspend by checking the power state of |
871 | * the ALSA card - when we are suspending the ALSA state for the card | |
872 | * is set to D3. | |
873 | */ | |
874 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
875 | { | |
12ea2c78 | 876 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 877 | |
f0fba2ad | 878 | switch (level) { |
9949788b MB |
879 | case SNDRV_CTL_POWER_D3hot: |
880 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 881 | if (widget->ignore_suspend) |
30a6a1a4 | 882 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 883 | widget->name); |
1547aba9 | 884 | return widget->ignore_suspend; |
9949788b MB |
885 | default: |
886 | return 1; | |
887 | } | |
888 | } | |
889 | ||
ec2e3031 LG |
890 | /* add widget to list if it's not already in the list */ |
891 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
892 | struct snd_soc_dapm_widget *w) | |
893 | { | |
894 | struct snd_soc_dapm_widget_list *wlist; | |
895 | int wlistsize, wlistentries, i; | |
896 | ||
897 | if (*list == NULL) | |
898 | return -EINVAL; | |
899 | ||
900 | wlist = *list; | |
901 | ||
902 | /* is this widget already in the list */ | |
903 | for (i = 0; i < wlist->num_widgets; i++) { | |
904 | if (wlist->widgets[i] == w) | |
905 | return 0; | |
906 | } | |
907 | ||
908 | /* allocate some new space */ | |
909 | wlistentries = wlist->num_widgets + 1; | |
910 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
911 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
912 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
913 | if (*list == NULL) { | |
30a6a1a4 | 914 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
915 | w->name); |
916 | return -ENOMEM; | |
917 | } | |
918 | wlist = *list; | |
919 | ||
920 | /* insert the widget */ | |
30a6a1a4 | 921 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
922 | w->name, wlist->num_widgets); |
923 | ||
924 | wlist->widgets[wlist->num_widgets] = w; | |
925 | wlist->num_widgets++; | |
926 | return 1; | |
927 | } | |
928 | ||
2b97eabc RP |
929 | /* |
930 | * Recursively check for a completed path to an active or physically connected | |
931 | * output widget. Returns number of complete paths. | |
932 | */ | |
ec2e3031 LG |
933 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
934 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
935 | { |
936 | struct snd_soc_dapm_path *path; | |
937 | int con = 0; | |
938 | ||
024dc078 MB |
939 | if (widget->outputs >= 0) |
940 | return widget->outputs; | |
941 | ||
de02d078 MB |
942 | DAPM_UPDATE_STAT(widget, path_checks); |
943 | ||
62ea874a MB |
944 | switch (widget->id) { |
945 | case snd_soc_dapm_supply: | |
946 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 947 | case snd_soc_dapm_clock_supply: |
57295073 | 948 | case snd_soc_dapm_kcontrol: |
246d0a17 | 949 | return 0; |
62ea874a MB |
950 | default: |
951 | break; | |
952 | } | |
246d0a17 | 953 | |
010ff262 MB |
954 | switch (widget->id) { |
955 | case snd_soc_dapm_adc: | |
956 | case snd_soc_dapm_aif_out: | |
4616274d | 957 | case snd_soc_dapm_dai_out: |
024dc078 MB |
958 | if (widget->active) { |
959 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
960 | return widget->outputs; | |
961 | } | |
010ff262 MB |
962 | default: |
963 | break; | |
964 | } | |
2b97eabc RP |
965 | |
966 | if (widget->connected) { | |
967 | /* connected pin ? */ | |
024dc078 MB |
968 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
969 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
970 | return widget->outputs; | |
971 | } | |
2b97eabc RP |
972 | |
973 | /* connected jack or spk ? */ | |
024dc078 MB |
974 | if (widget->id == snd_soc_dapm_hp || |
975 | widget->id == snd_soc_dapm_spk || | |
976 | (widget->id == snd_soc_dapm_line && | |
977 | !list_empty(&widget->sources))) { | |
978 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
979 | return widget->outputs; | |
980 | } | |
2b97eabc RP |
981 | } |
982 | ||
983 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
984 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
985 | ||
bf3a9e13 MB |
986 | if (path->weak) |
987 | continue; | |
988 | ||
8af294b4 MB |
989 | if (path->walking) |
990 | return 1; | |
991 | ||
2b97eabc RP |
992 | if (path->walked) |
993 | continue; | |
994 | ||
ec2e3031 LG |
995 | trace_snd_soc_dapm_output_path(widget, path); |
996 | ||
2b97eabc RP |
997 | if (path->sink && path->connect) { |
998 | path->walked = 1; | |
8af294b4 | 999 | path->walking = 1; |
ec2e3031 LG |
1000 | |
1001 | /* do we need to add this widget to the list ? */ | |
1002 | if (list) { | |
1003 | int err; | |
1004 | err = dapm_list_add_widget(list, path->sink); | |
1005 | if (err < 0) { | |
30a6a1a4 LG |
1006 | dev_err(widget->dapm->dev, |
1007 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1008 | widget->name); |
8af294b4 | 1009 | path->walking = 0; |
ec2e3031 LG |
1010 | return con; |
1011 | } | |
1012 | } | |
1013 | ||
1014 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1015 | |
1016 | path->walking = 0; | |
2b97eabc RP |
1017 | } |
1018 | } | |
1019 | ||
024dc078 MB |
1020 | widget->outputs = con; |
1021 | ||
2b97eabc RP |
1022 | return con; |
1023 | } | |
1024 | ||
1025 | /* | |
1026 | * Recursively check for a completed path to an active or physically connected | |
1027 | * input widget. Returns number of complete paths. | |
1028 | */ | |
ec2e3031 LG |
1029 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1030 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1031 | { |
1032 | struct snd_soc_dapm_path *path; | |
1033 | int con = 0; | |
1034 | ||
024dc078 MB |
1035 | if (widget->inputs >= 0) |
1036 | return widget->inputs; | |
1037 | ||
de02d078 MB |
1038 | DAPM_UPDATE_STAT(widget, path_checks); |
1039 | ||
62ea874a MB |
1040 | switch (widget->id) { |
1041 | case snd_soc_dapm_supply: | |
1042 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 1043 | case snd_soc_dapm_clock_supply: |
57295073 | 1044 | case snd_soc_dapm_kcontrol: |
246d0a17 | 1045 | return 0; |
62ea874a MB |
1046 | default: |
1047 | break; | |
1048 | } | |
246d0a17 | 1049 | |
2b97eabc | 1050 | /* active stream ? */ |
010ff262 MB |
1051 | switch (widget->id) { |
1052 | case snd_soc_dapm_dac: | |
1053 | case snd_soc_dapm_aif_in: | |
4616274d | 1054 | case snd_soc_dapm_dai_in: |
024dc078 MB |
1055 | if (widget->active) { |
1056 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1057 | return widget->inputs; | |
1058 | } | |
010ff262 MB |
1059 | default: |
1060 | break; | |
1061 | } | |
2b97eabc RP |
1062 | |
1063 | if (widget->connected) { | |
1064 | /* connected pin ? */ | |
024dc078 MB |
1065 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
1066 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1067 | return widget->inputs; | |
1068 | } | |
2b97eabc RP |
1069 | |
1070 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
1071 | if (widget->id == snd_soc_dapm_vmid) { |
1072 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1073 | return widget->inputs; | |
1074 | } | |
2b97eabc RP |
1075 | |
1076 | /* connected jack ? */ | |
eaeae5d9 | 1077 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1078 | (widget->id == snd_soc_dapm_line && |
1079 | !list_empty(&widget->sinks))) { | |
1080 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1081 | return widget->inputs; | |
1082 | } | |
1083 | ||
1ab97c8c MB |
1084 | /* signal generator */ |
1085 | if (widget->id == snd_soc_dapm_siggen) { | |
1086 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1087 | return widget->inputs; | |
1088 | } | |
2b97eabc RP |
1089 | } |
1090 | ||
1091 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1092 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1093 | ||
bf3a9e13 MB |
1094 | if (path->weak) |
1095 | continue; | |
1096 | ||
8af294b4 MB |
1097 | if (path->walking) |
1098 | return 1; | |
1099 | ||
2b97eabc RP |
1100 | if (path->walked) |
1101 | continue; | |
1102 | ||
ec2e3031 LG |
1103 | trace_snd_soc_dapm_input_path(widget, path); |
1104 | ||
2b97eabc RP |
1105 | if (path->source && path->connect) { |
1106 | path->walked = 1; | |
8af294b4 | 1107 | path->walking = 1; |
ec2e3031 LG |
1108 | |
1109 | /* do we need to add this widget to the list ? */ | |
1110 | if (list) { | |
1111 | int err; | |
90c6ce0d | 1112 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1113 | if (err < 0) { |
30a6a1a4 LG |
1114 | dev_err(widget->dapm->dev, |
1115 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1116 | widget->name); |
8af294b4 | 1117 | path->walking = 0; |
ec2e3031 LG |
1118 | return con; |
1119 | } | |
1120 | } | |
1121 | ||
1122 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1123 | |
1124 | path->walking = 0; | |
2b97eabc RP |
1125 | } |
1126 | } | |
1127 | ||
024dc078 MB |
1128 | widget->inputs = con; |
1129 | ||
2b97eabc RP |
1130 | return con; |
1131 | } | |
1132 | ||
ec2e3031 LG |
1133 | /** |
1134 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1135 | * @dai: the soc DAI. | |
1136 | * @stream: stream direction. | |
1137 | * @list: list of active widgets for this stream. | |
1138 | * | |
1139 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1140 | * the initial stream specified by name. This takes into account | |
1141 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1142 | * | |
1143 | * Returns the number of valid paths or negative error. | |
1144 | */ | |
1145 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1146 | struct snd_soc_dapm_widget_list **list) | |
1147 | { | |
1148 | struct snd_soc_card *card = dai->card; | |
1149 | int paths; | |
1150 | ||
1151 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1152 | dapm_reset(card); | |
1153 | ||
1059ecfa | 1154 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1155 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1156 | dapm_clear_walk_output(&card->dapm, |
1157 | &dai->playback_widget->sinks); | |
1158 | } else { | |
d298caae | 1159 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1160 | dapm_clear_walk_input(&card->dapm, |
1161 | &dai->capture_widget->sources); | |
1162 | } | |
ec2e3031 LG |
1163 | |
1164 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1165 | mutex_unlock(&card->dapm_mutex); |
1166 | ||
1167 | return paths; | |
1168 | } | |
1169 | ||
e2be2ccf JN |
1170 | /* |
1171 | * Handler for generic register modifier widget. | |
1172 | */ | |
1173 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1174 | struct snd_kcontrol *kcontrol, int event) | |
1175 | { | |
1176 | unsigned int val; | |
1177 | ||
1178 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1179 | val = w->on_val; | |
1180 | else | |
1181 | val = w->off_val; | |
1182 | ||
49575fb5 | 1183 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1184 | w->mask << w->shift, val << w->shift); |
1185 | ||
1186 | return 0; | |
1187 | } | |
11589418 | 1188 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1189 | |
62ea874a MB |
1190 | /* |
1191 | * Handler for regulator supply widget. | |
1192 | */ | |
1193 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1194 | struct snd_kcontrol *kcontrol, int event) | |
1195 | { | |
c05b84d1 MB |
1196 | int ret; |
1197 | ||
1198 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
de9ba98b | 1199 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1200 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1201 | if (ret != 0) |
1202 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1203 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1204 | w->name, ret); |
1205 | } | |
1206 | ||
a3cc056b | 1207 | return regulator_enable(w->regulator); |
c05b84d1 | 1208 | } else { |
de9ba98b | 1209 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1210 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1211 | if (ret != 0) |
1212 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1213 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1214 | w->name, ret); |
1215 | } | |
1216 | ||
a3cc056b | 1217 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1218 | } |
62ea874a MB |
1219 | } |
1220 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1221 | ||
d7e7eb91 OL |
1222 | /* |
1223 | * Handler for clock supply widget. | |
1224 | */ | |
1225 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1226 | struct snd_kcontrol *kcontrol, int event) | |
1227 | { | |
1228 | if (!w->clk) | |
1229 | return -EIO; | |
1230 | ||
ec02995a | 1231 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1232 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1233 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1234 | } else { |
37c1b927 | 1235 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1236 | return 0; |
1237 | } | |
ec02995a | 1238 | #endif |
98b3cf12 | 1239 | return 0; |
d7e7eb91 OL |
1240 | } |
1241 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1242 | ||
d805002b MB |
1243 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1244 | { | |
9b8a83b2 MB |
1245 | if (w->power_checked) |
1246 | return w->new_power; | |
1247 | ||
d805002b | 1248 | if (w->force) |
9b8a83b2 | 1249 | w->new_power = 1; |
d805002b | 1250 | else |
9b8a83b2 MB |
1251 | w->new_power = w->power_check(w); |
1252 | ||
1253 | w->power_checked = true; | |
1254 | ||
1255 | return w->new_power; | |
d805002b MB |
1256 | } |
1257 | ||
cd0f2d47 MB |
1258 | /* Generic check to see if a widget should be powered. |
1259 | */ | |
1260 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1261 | { | |
1262 | int in, out; | |
1263 | ||
de02d078 MB |
1264 | DAPM_UPDATE_STAT(w, power_checks); |
1265 | ||
ec2e3031 | 1266 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1267 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1268 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1269 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1270 | return out != 0 && in != 0; |
1271 | } | |
1272 | ||
6ea31b9f MB |
1273 | /* Check to see if an ADC has power */ |
1274 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1275 | { | |
1276 | int in; | |
1277 | ||
de02d078 MB |
1278 | DAPM_UPDATE_STAT(w, power_checks); |
1279 | ||
6ea31b9f | 1280 | if (w->active) { |
ec2e3031 | 1281 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1282 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1283 | return in != 0; |
1284 | } else { | |
1285 | return dapm_generic_check_power(w); | |
1286 | } | |
1287 | } | |
1288 | ||
1289 | /* Check to see if a DAC has power */ | |
1290 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1291 | { | |
1292 | int out; | |
1293 | ||
de02d078 MB |
1294 | DAPM_UPDATE_STAT(w, power_checks); |
1295 | ||
6ea31b9f | 1296 | if (w->active) { |
ec2e3031 | 1297 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1298 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1299 | return out != 0; |
1300 | } else { | |
1301 | return dapm_generic_check_power(w); | |
1302 | } | |
1303 | } | |
1304 | ||
246d0a17 MB |
1305 | /* Check to see if a power supply is needed */ |
1306 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1307 | { | |
1308 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1309 | |
de02d078 MB |
1310 | DAPM_UPDATE_STAT(w, power_checks); |
1311 | ||
246d0a17 MB |
1312 | /* Check if one of our outputs is connected */ |
1313 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1314 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1315 | ||
bf3a9e13 MB |
1316 | if (path->weak) |
1317 | continue; | |
1318 | ||
215edda3 MB |
1319 | if (path->connected && |
1320 | !path->connected(path->source, path->sink)) | |
1321 | continue; | |
1322 | ||
3017358a MB |
1323 | if (!path->sink) |
1324 | continue; | |
1325 | ||
f68d7e16 MB |
1326 | if (dapm_widget_power_check(path->sink)) |
1327 | return 1; | |
246d0a17 MB |
1328 | } |
1329 | ||
f68d7e16 | 1330 | return 0; |
246d0a17 MB |
1331 | } |
1332 | ||
35c64bca MB |
1333 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1334 | { | |
1335 | return 1; | |
1336 | } | |
1337 | ||
38357ab2 MB |
1338 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1339 | struct snd_soc_dapm_widget *b, | |
828a842f | 1340 | bool power_up) |
42aa3418 | 1341 | { |
828a842f MB |
1342 | int *sort; |
1343 | ||
1344 | if (power_up) | |
1345 | sort = dapm_up_seq; | |
1346 | else | |
1347 | sort = dapm_down_seq; | |
1348 | ||
38357ab2 MB |
1349 | if (sort[a->id] != sort[b->id]) |
1350 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1351 | if (a->subseq != b->subseq) { |
1352 | if (power_up) | |
1353 | return a->subseq - b->subseq; | |
1354 | else | |
1355 | return b->subseq - a->subseq; | |
1356 | } | |
b22ead2a MB |
1357 | if (a->reg != b->reg) |
1358 | return a->reg - b->reg; | |
84dab567 MB |
1359 | if (a->dapm != b->dapm) |
1360 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1361 | |
38357ab2 MB |
1362 | return 0; |
1363 | } | |
42aa3418 | 1364 | |
38357ab2 MB |
1365 | /* Insert a widget in order into a DAPM power sequence. */ |
1366 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1367 | struct list_head *list, | |
828a842f | 1368 | bool power_up) |
38357ab2 MB |
1369 | { |
1370 | struct snd_soc_dapm_widget *w; | |
1371 | ||
1372 | list_for_each_entry(w, list, power_list) | |
828a842f | 1373 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1374 | list_add_tail(&new_widget->power_list, &w->power_list); |
1375 | return; | |
1376 | } | |
1377 | ||
1378 | list_add_tail(&new_widget->power_list, list); | |
1379 | } | |
1380 | ||
95dd5cd6 | 1381 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1382 | struct snd_soc_dapm_widget *w, int event) |
1383 | { | |
68f89ad8 MB |
1384 | const char *ev_name; |
1385 | int power, ret; | |
1386 | ||
1387 | switch (event) { | |
1388 | case SND_SOC_DAPM_PRE_PMU: | |
1389 | ev_name = "PRE_PMU"; | |
1390 | power = 1; | |
1391 | break; | |
1392 | case SND_SOC_DAPM_POST_PMU: | |
1393 | ev_name = "POST_PMU"; | |
1394 | power = 1; | |
1395 | break; | |
1396 | case SND_SOC_DAPM_PRE_PMD: | |
1397 | ev_name = "PRE_PMD"; | |
1398 | power = 0; | |
1399 | break; | |
1400 | case SND_SOC_DAPM_POST_PMD: | |
1401 | ev_name = "POST_PMD"; | |
1402 | power = 0; | |
1403 | break; | |
80114129 MB |
1404 | case SND_SOC_DAPM_WILL_PMU: |
1405 | ev_name = "WILL_PMU"; | |
1406 | power = 1; | |
1407 | break; | |
1408 | case SND_SOC_DAPM_WILL_PMD: | |
1409 | ev_name = "WILL_PMD"; | |
1410 | power = 0; | |
1411 | break; | |
68f89ad8 MB |
1412 | default: |
1413 | BUG(); | |
1414 | return; | |
1415 | } | |
1416 | ||
39eb5fd1 | 1417 | if (w->new_power != power) |
68f89ad8 MB |
1418 | return; |
1419 | ||
1420 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1421 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1422 | w->name, ev_name); |
84e90930 | 1423 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1424 | ret = w->event(w, NULL, event); |
84e90930 | 1425 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1426 | if (ret < 0) |
95dd5cd6 | 1427 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1428 | ev_name, w->name, ret); |
1429 | } | |
1430 | } | |
1431 | ||
b22ead2a | 1432 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1433 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1434 | struct list_head *pending) |
163cac06 | 1435 | { |
68f89ad8 | 1436 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1437 | int reg; |
b22ead2a MB |
1438 | unsigned int value = 0; |
1439 | unsigned int mask = 0; | |
b22ead2a MB |
1440 | |
1441 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1442 | power_list)->reg; | |
1443 | ||
1444 | list_for_each_entry(w, pending, power_list) { | |
b22ead2a | 1445 | BUG_ON(reg != w->reg); |
39eb5fd1 | 1446 | w->power = w->new_power; |
b22ead2a | 1447 | |
de9ba98b LPC |
1448 | mask |= w->mask << w->shift; |
1449 | if (w->power) | |
1450 | value |= w->on_val << w->shift; | |
b22ead2a | 1451 | else |
de9ba98b | 1452 | value |= w->off_val << w->shift; |
b22ead2a | 1453 | |
95dd5cd6 | 1454 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1455 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1456 | w->name, reg, value, mask); | |
81628103 | 1457 | |
68f89ad8 | 1458 | /* Check for events */ |
95dd5cd6 LPC |
1459 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1460 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1461 | } |
1462 | ||
1463 | if (reg >= 0) { | |
29376bc7 MB |
1464 | /* Any widget will do, they should all be updating the |
1465 | * same register. | |
1466 | */ | |
1467 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1468 | power_list); | |
1469 | ||
95dd5cd6 | 1470 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1471 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1472 | value, mask, reg, card->pop_time); |
1473 | pop_wait(card->pop_time); | |
49575fb5 | 1474 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1475 | } |
1476 | ||
81628103 | 1477 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1478 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1479 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1480 | } |
b22ead2a | 1481 | } |
42aa3418 | 1482 | |
b22ead2a MB |
1483 | /* Apply a DAPM power sequence. |
1484 | * | |
1485 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1486 | * order to minimise the number of writes to the device required | |
1487 | * multiple widgets will be updated in a single write where possible. | |
1488 | * Currently anything that requires more than a single write is not | |
1489 | * handled. | |
1490 | */ | |
95dd5cd6 LPC |
1491 | static void dapm_seq_run(struct snd_soc_card *card, |
1492 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1493 | { |
1494 | struct snd_soc_dapm_widget *w, *n; | |
1495 | LIST_HEAD(pending); | |
1496 | int cur_sort = -1; | |
20e4859d | 1497 | int cur_subseq = -1; |
b22ead2a | 1498 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1499 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1500 | int ret, i; |
828a842f MB |
1501 | int *sort; |
1502 | ||
1503 | if (power_up) | |
1504 | sort = dapm_up_seq; | |
1505 | else | |
1506 | sort = dapm_down_seq; | |
163cac06 | 1507 | |
b22ead2a MB |
1508 | list_for_each_entry_safe(w, n, list, power_list) { |
1509 | ret = 0; | |
1510 | ||
1511 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1512 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1513 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1514 | if (!list_empty(&pending)) |
95dd5cd6 | 1515 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1516 | |
474b62d6 MB |
1517 | if (cur_dapm && cur_dapm->seq_notifier) { |
1518 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1519 | if (sort[i] == cur_sort) | |
1520 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1521 | i, |
1522 | cur_subseq); | |
474b62d6 MB |
1523 | } |
1524 | ||
b22ead2a MB |
1525 | INIT_LIST_HEAD(&pending); |
1526 | cur_sort = -1; | |
b0b3e6f8 | 1527 | cur_subseq = INT_MIN; |
b22ead2a | 1528 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1529 | cur_dapm = NULL; |
b22ead2a MB |
1530 | } |
1531 | ||
163cac06 MB |
1532 | switch (w->id) { |
1533 | case snd_soc_dapm_pre: | |
1534 | if (!w->event) | |
b22ead2a MB |
1535 | list_for_each_entry_safe_continue(w, n, list, |
1536 | power_list); | |
163cac06 | 1537 | |
b22ead2a | 1538 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1539 | ret = w->event(w, |
1540 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1541 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1542 | ret = w->event(w, |
1543 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1544 | break; |
1545 | ||
1546 | case snd_soc_dapm_post: | |
1547 | if (!w->event) | |
b22ead2a MB |
1548 | list_for_each_entry_safe_continue(w, n, list, |
1549 | power_list); | |
163cac06 | 1550 | |
b22ead2a | 1551 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1552 | ret = w->event(w, |
1553 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1554 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1555 | ret = w->event(w, |
1556 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1557 | break; |
1558 | ||
b22ead2a | 1559 | default: |
81628103 MB |
1560 | /* Queue it up for application */ |
1561 | cur_sort = sort[w->id]; | |
20e4859d | 1562 | cur_subseq = w->subseq; |
81628103 | 1563 | cur_reg = w->reg; |
7be31be8 | 1564 | cur_dapm = w->dapm; |
81628103 MB |
1565 | list_move(&w->power_list, &pending); |
1566 | break; | |
163cac06 | 1567 | } |
b22ead2a MB |
1568 | |
1569 | if (ret < 0) | |
f7d41ae8 | 1570 | dev_err(w->dapm->dev, |
30a6a1a4 | 1571 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1572 | } |
b22ead2a MB |
1573 | |
1574 | if (!list_empty(&pending)) | |
95dd5cd6 | 1575 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1576 | |
1577 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1578 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1579 | if (sort[i] == cur_sort) | |
1580 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1581 | i, cur_subseq); |
474b62d6 | 1582 | } |
42aa3418 MB |
1583 | } |
1584 | ||
95dd5cd6 | 1585 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1586 | { |
95dd5cd6 | 1587 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1588 | struct snd_soc_dapm_widget_list *wlist; |
1589 | struct snd_soc_dapm_widget *w = NULL; | |
1590 | unsigned int wi; | |
97404f2e MB |
1591 | int ret; |
1592 | ||
57295073 | 1593 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1594 | return; |
1595 | ||
e84357f7 | 1596 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1597 | |
ce6cfaf1 LPC |
1598 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1599 | w = wlist->widgets[wi]; | |
1600 | ||
1601 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1602 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1603 | if (ret != 0) | |
95dd5cd6 | 1604 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1605 | w->name, ret); |
1606 | } | |
97404f2e MB |
1607 | } |
1608 | ||
ce6cfaf1 LPC |
1609 | if (!w) |
1610 | return; | |
1611 | ||
49575fb5 | 1612 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1613 | update->val); |
1614 | if (ret < 0) | |
95dd5cd6 | 1615 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1616 | w->name, ret); |
97404f2e | 1617 | |
ce6cfaf1 LPC |
1618 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1619 | w = wlist->widgets[wi]; | |
1620 | ||
1621 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1622 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1623 | if (ret != 0) | |
95dd5cd6 | 1624 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1625 | w->name, ret); |
1626 | } | |
97404f2e MB |
1627 | } |
1628 | } | |
1629 | ||
9d0624a7 MB |
1630 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1631 | * they're changing state. | |
1632 | */ | |
1633 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1634 | { | |
1635 | struct snd_soc_dapm_context *d = data; | |
1636 | int ret; | |
1637 | ||
56fba41f MB |
1638 | /* If we're off and we're not supposed to be go into STANDBY */ |
1639 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1640 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1641 | if (d->dev) |
1642 | pm_runtime_get_sync(d->dev); | |
1643 | ||
9d0624a7 MB |
1644 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1645 | if (ret != 0) | |
1646 | dev_err(d->dev, | |
30a6a1a4 | 1647 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1648 | } |
1649 | ||
56fba41f MB |
1650 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1651 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1652 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1653 | if (ret != 0) | |
1654 | dev_err(d->dev, | |
30a6a1a4 | 1655 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1656 | } |
1657 | } | |
1658 | ||
1659 | /* Async callback run prior to DAPM sequences - brings to their final | |
1660 | * state. | |
1661 | */ | |
1662 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1663 | { | |
1664 | struct snd_soc_dapm_context *d = data; | |
1665 | int ret; | |
1666 | ||
1667 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1668 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1669 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1670 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1671 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1672 | if (ret != 0) | |
30a6a1a4 | 1673 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1674 | ret); |
1675 | } | |
97404f2e | 1676 | |
9d0624a7 | 1677 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1678 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1679 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1680 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1681 | if (ret != 0) | |
30a6a1a4 LG |
1682 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1683 | ret); | |
f1aac484 MB |
1684 | |
1685 | if (d->dev) | |
fb644e9c | 1686 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1687 | } |
1688 | ||
1689 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1690 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1691 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1692 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1693 | if (ret != 0) | |
30a6a1a4 | 1694 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1695 | ret); |
1696 | } | |
1697 | } | |
97404f2e | 1698 | |
fe4fda5d MB |
1699 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1700 | bool power, bool connect) | |
1701 | { | |
1702 | /* If a connection is being made or broken then that update | |
1703 | * will have marked the peer dirty, otherwise the widgets are | |
1704 | * not connected and this update has no impact. */ | |
1705 | if (!connect) | |
1706 | return; | |
1707 | ||
1708 | /* If the peer is already in the state we're moving to then we | |
1709 | * won't have an impact on it. */ | |
1710 | if (power != peer->power) | |
75c1f891 | 1711 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1712 | } |
1713 | ||
05623c43 MB |
1714 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1715 | struct list_head *up_list, | |
1716 | struct list_head *down_list) | |
1717 | { | |
db432b41 MB |
1718 | struct snd_soc_dapm_path *path; |
1719 | ||
05623c43 MB |
1720 | if (w->power == power) |
1721 | return; | |
1722 | ||
1723 | trace_snd_soc_dapm_widget_power(w, power); | |
1724 | ||
db432b41 | 1725 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1726 | * also. |
db432b41 MB |
1727 | */ |
1728 | list_for_each_entry(path, &w->sources, list_sink) { | |
1729 | if (path->source) { | |
fe4fda5d MB |
1730 | dapm_widget_set_peer_power(path->source, power, |
1731 | path->connect); | |
db432b41 MB |
1732 | } |
1733 | } | |
f3bf3e45 MB |
1734 | switch (w->id) { |
1735 | case snd_soc_dapm_supply: | |
62ea874a | 1736 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1737 | case snd_soc_dapm_clock_supply: |
57295073 | 1738 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1739 | /* Supplies can't affect their outputs, only their inputs */ |
1740 | break; | |
1741 | default: | |
1742 | list_for_each_entry(path, &w->sinks, list_source) { | |
1743 | if (path->sink) { | |
1744 | dapm_widget_set_peer_power(path->sink, power, | |
1745 | path->connect); | |
1746 | } | |
db432b41 | 1747 | } |
f3bf3e45 | 1748 | break; |
db432b41 MB |
1749 | } |
1750 | ||
05623c43 MB |
1751 | if (power) |
1752 | dapm_seq_insert(w, up_list, true); | |
1753 | else | |
1754 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1755 | } |
1756 | ||
7c81beb0 MB |
1757 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1758 | struct list_head *up_list, | |
1759 | struct list_head *down_list) | |
1760 | { | |
7c81beb0 MB |
1761 | int power; |
1762 | ||
1763 | switch (w->id) { | |
1764 | case snd_soc_dapm_pre: | |
1765 | dapm_seq_insert(w, down_list, false); | |
1766 | break; | |
1767 | case snd_soc_dapm_post: | |
1768 | dapm_seq_insert(w, up_list, true); | |
1769 | break; | |
1770 | ||
1771 | default: | |
d805002b | 1772 | power = dapm_widget_power_check(w); |
7c81beb0 | 1773 | |
05623c43 | 1774 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1775 | break; |
1776 | } | |
1777 | } | |
1778 | ||
2b97eabc RP |
1779 | /* |
1780 | * Scan each dapm widget for complete audio path. | |
1781 | * A complete path is a route that has valid endpoints i.e.:- | |
1782 | * | |
1783 | * o DAC to output pin. | |
1784 | * o Input Pin to ADC. | |
1785 | * o Input pin to Output pin (bypass, sidetone) | |
1786 | * o DAC to ADC (loopback). | |
1787 | */ | |
95dd5cd6 | 1788 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1789 | { |
1790 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1791 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1792 | LIST_HEAD(up_list); |
1793 | LIST_HEAD(down_list); | |
2955b47d | 1794 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1795 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1796 | |
84e90930 MB |
1797 | trace_snd_soc_dapm_start(card); |
1798 | ||
56fba41f | 1799 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1800 | if (d->idle_bias_off) |
1801 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1802 | else | |
1803 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1804 | } |
7be31be8 | 1805 | |
6c120e19 | 1806 | dapm_reset(card); |
9b8a83b2 | 1807 | |
6d3ddc81 | 1808 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1809 | * lists indicating if they should be powered up or down. We |
1810 | * only check widgets that have been flagged as dirty but note | |
1811 | * that new widgets may be added to the dirty list while we | |
1812 | * iterate. | |
6d3ddc81 | 1813 | */ |
db432b41 | 1814 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1815 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1816 | } |
1817 | ||
f9de6d74 | 1818 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1819 | switch (w->id) { |
1820 | case snd_soc_dapm_pre: | |
1821 | case snd_soc_dapm_post: | |
1822 | /* These widgets always need to be powered */ | |
1823 | break; | |
1824 | default: | |
1825 | list_del_init(&w->dirty); | |
1826 | break; | |
1827 | } | |
db432b41 | 1828 | |
39eb5fd1 | 1829 | if (w->new_power) { |
f9de6d74 MB |
1830 | d = w->dapm; |
1831 | ||
1832 | /* Supplies and micbiases only bring the | |
1833 | * context up to STANDBY as unless something | |
1834 | * else is active and passing audio they | |
afe62367 MB |
1835 | * generally don't require full power. Signal |
1836 | * generators are virtual pins and have no | |
1837 | * power impact themselves. | |
f9de6d74 MB |
1838 | */ |
1839 | switch (w->id) { | |
afe62367 MB |
1840 | case snd_soc_dapm_siggen: |
1841 | break; | |
f9de6d74 | 1842 | case snd_soc_dapm_supply: |
62ea874a | 1843 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1844 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1845 | case snd_soc_dapm_micbias: |
1846 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1847 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1848 | break; | |
1849 | default: | |
1850 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1851 | break; | |
1852 | } | |
1853 | } | |
1854 | ||
1855 | } | |
1856 | ||
85a843c5 MB |
1857 | /* Force all contexts in the card to the same bias state if |
1858 | * they're not ground referenced. | |
1859 | */ | |
56fba41f | 1860 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1861 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1862 | if (d->target_bias_level > bias) |
1863 | bias = d->target_bias_level; | |
52ba67bf | 1864 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1865 | if (!d->idle_bias_off) |
1866 | d->target_bias_level = bias; | |
52ba67bf | 1867 | |
de02d078 | 1868 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1869 | |
9d0624a7 | 1870 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1871 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1872 | async_schedule_domain(dapm_pre_sequence_async, d, |
1873 | &async_domain); | |
1874 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1875 | |
cf1f7c6e | 1876 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1877 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1878 | } |
1879 | ||
cf1f7c6e | 1880 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1881 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1882 | } |
1883 | ||
6d3ddc81 | 1884 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1885 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1886 | |
95dd5cd6 | 1887 | dapm_widget_update(card); |
97404f2e | 1888 | |
6d3ddc81 | 1889 | /* Now power up. */ |
95dd5cd6 | 1890 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1891 | |
9d0624a7 | 1892 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1893 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1894 | async_schedule_domain(dapm_post_sequence_async, d, |
1895 | &async_domain); | |
1896 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1897 | |
8078d87f LG |
1898 | /* do we need to notify any clients that DAPM event is complete */ |
1899 | list_for_each_entry(d, &card->dapm_list, list) { | |
1900 | if (d->stream_event) | |
1901 | d->stream_event(d, event); | |
1902 | } | |
1903 | ||
95dd5cd6 | 1904 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1905 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1906 | pop_wait(card->pop_time); |
cb507e7e | 1907 | |
84e90930 MB |
1908 | trace_snd_soc_dapm_done(card); |
1909 | ||
42aa3418 | 1910 | return 0; |
2b97eabc RP |
1911 | } |
1912 | ||
79fb9387 | 1913 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1914 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1915 | char __user *user_buf, | |
1916 | size_t count, loff_t *ppos) | |
1917 | { | |
1918 | struct snd_soc_dapm_widget *w = file->private_data; | |
1919 | char *buf; | |
1920 | int in, out; | |
1921 | ssize_t ret; | |
1922 | struct snd_soc_dapm_path *p = NULL; | |
1923 | ||
1924 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1925 | if (!buf) | |
1926 | return -ENOMEM; | |
1927 | ||
ec2e3031 | 1928 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1929 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1930 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1931 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1932 | |
f13ebada MB |
1933 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1934 | w->name, w->power ? "On" : "Off", | |
1935 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1936 | |
d033c36a MB |
1937 | if (w->reg >= 0) |
1938 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1939 | " - R%d(0x%x) mask 0x%x", |
1940 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1941 | |
1942 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1943 | ||
3eef08ba MB |
1944 | if (w->sname) |
1945 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1946 | w->sname, | |
1947 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1948 | |
1949 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1950 | if (p->connected && !p->connected(w, p->sink)) |
1951 | continue; | |
1952 | ||
79fb9387 MB |
1953 | if (p->connect) |
1954 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1955 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1956 | p->name ? p->name : "static", |
1957 | p->source->name); | |
1958 | } | |
1959 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1960 | if (p->connected && !p->connected(w, p->sink)) |
1961 | continue; | |
1962 | ||
79fb9387 MB |
1963 | if (p->connect) |
1964 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1965 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1966 | p->name ? p->name : "static", |
1967 | p->sink->name); | |
1968 | } | |
1969 | ||
1970 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1971 | ||
1972 | kfree(buf); | |
1973 | return ret; | |
1974 | } | |
1975 | ||
1976 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1977 | .open = simple_open, |
79fb9387 | 1978 | .read = dapm_widget_power_read_file, |
6038f373 | 1979 | .llseek = default_llseek, |
79fb9387 MB |
1980 | }; |
1981 | ||
ef49e4fa MB |
1982 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1983 | size_t count, loff_t *ppos) | |
1984 | { | |
1985 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1986 | char *level; | |
1987 | ||
1988 | switch (dapm->bias_level) { | |
1989 | case SND_SOC_BIAS_ON: | |
1990 | level = "On\n"; | |
1991 | break; | |
1992 | case SND_SOC_BIAS_PREPARE: | |
1993 | level = "Prepare\n"; | |
1994 | break; | |
1995 | case SND_SOC_BIAS_STANDBY: | |
1996 | level = "Standby\n"; | |
1997 | break; | |
1998 | case SND_SOC_BIAS_OFF: | |
1999 | level = "Off\n"; | |
2000 | break; | |
2001 | default: | |
2002 | BUG(); | |
2003 | level = "Unknown\n"; | |
2004 | break; | |
2005 | } | |
2006 | ||
2007 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2008 | strlen(level)); | |
2009 | } | |
2010 | ||
2011 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2012 | .open = simple_open, |
ef49e4fa MB |
2013 | .read = dapm_bias_read_file, |
2014 | .llseek = default_llseek, | |
2015 | }; | |
2016 | ||
8eecaf62 LPC |
2017 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2018 | struct dentry *parent) | |
79fb9387 | 2019 | { |
79fb9387 MB |
2020 | struct dentry *d; |
2021 | ||
8eecaf62 LPC |
2022 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2023 | ||
2024 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2025 | dev_warn(dapm->dev, |
30a6a1a4 | 2026 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2027 | return; |
8eecaf62 | 2028 | } |
79fb9387 | 2029 | |
ef49e4fa MB |
2030 | d = debugfs_create_file("bias_level", 0444, |
2031 | dapm->debugfs_dapm, dapm, | |
2032 | &dapm_bias_fops); | |
2033 | if (!d) | |
2034 | dev_warn(dapm->dev, | |
2035 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2036 | } |
ef49e4fa | 2037 | |
d5d1e0be LPC |
2038 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2039 | { | |
2040 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2041 | struct dentry *d; | |
79fb9387 | 2042 | |
d5d1e0be LPC |
2043 | if (!dapm->debugfs_dapm || !w->name) |
2044 | return; | |
2045 | ||
2046 | d = debugfs_create_file(w->name, 0444, | |
2047 | dapm->debugfs_dapm, w, | |
2048 | &dapm_widget_power_fops); | |
2049 | if (!d) | |
2050 | dev_warn(w->dapm->dev, | |
2051 | "ASoC: Failed to create %s debugfs file\n", | |
2052 | w->name); | |
79fb9387 | 2053 | } |
d5d1e0be | 2054 | |
6c45e126 LPC |
2055 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2056 | { | |
2057 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2058 | } | |
2059 | ||
79fb9387 | 2060 | #else |
8eecaf62 LPC |
2061 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2062 | struct dentry *parent) | |
79fb9387 MB |
2063 | { |
2064 | } | |
d5d1e0be LPC |
2065 | |
2066 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2067 | { | |
2068 | } | |
2069 | ||
6c45e126 LPC |
2070 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2071 | { | |
2072 | } | |
2073 | ||
79fb9387 MB |
2074 | #endif |
2075 | ||
2b97eabc | 2076 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2077 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2078 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2079 | { |
2080 | struct snd_soc_dapm_path *path; | |
2081 | int found = 0; | |
2082 | ||
2b97eabc | 2083 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2084 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2085 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2086 | continue; |
2087 | ||
2088 | found = 1; | |
2089 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2090 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2091 | path->connect = 1; /* new connection */ |
75c1f891 | 2092 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2093 | } else { |
2094 | if (path->connect) | |
75c1f891 MB |
2095 | dapm_mark_dirty(path->source, |
2096 | "mux disconnection"); | |
2b97eabc | 2097 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2098 | } |
ce6cfaf1 | 2099 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2100 | } |
2101 | ||
ce6cfaf1 | 2102 | if (found) |
95dd5cd6 | 2103 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2104 | |
618dae11 | 2105 | return found; |
2b97eabc | 2106 | } |
4edbb345 | 2107 | |
ce6cfaf1 | 2108 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2109 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2110 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2111 | { |
ce6cfaf1 | 2112 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2113 | int ret; |
2114 | ||
3cd04343 | 2115 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2116 | card->update = update; |
95dd5cd6 | 2117 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2118 | card->update = NULL; |
4edbb345 | 2119 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2120 | if (ret > 0) |
c3f48ae6 | 2121 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2122 | return ret; |
2123 | } | |
40f02cd9 | 2124 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2125 | |
1b075e3f | 2126 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2127 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2128 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2129 | { |
2130 | struct snd_soc_dapm_path *path; | |
2131 | int found = 0; | |
2132 | ||
2b97eabc | 2133 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2134 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2135 | found = 1; |
283375ce | 2136 | path->connect = connect; |
75c1f891 | 2137 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2138 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2139 | } |
2140 | ||
ce6cfaf1 | 2141 | if (found) |
95dd5cd6 | 2142 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2143 | |
618dae11 | 2144 | return found; |
2b97eabc | 2145 | } |
4edbb345 | 2146 | |
ce6cfaf1 | 2147 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2148 | struct snd_kcontrol *kcontrol, int connect, |
2149 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2150 | { |
ce6cfaf1 | 2151 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2152 | int ret; |
2153 | ||
3cd04343 | 2154 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2155 | card->update = update; |
95dd5cd6 | 2156 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2157 | card->update = NULL; |
4edbb345 | 2158 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2159 | if (ret > 0) |
c3f48ae6 | 2160 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2161 | return ret; |
2162 | } | |
40f02cd9 | 2163 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2164 | |
2165 | /* show dapm widget status in sys fs */ | |
2166 | static ssize_t dapm_widget_show(struct device *dev, | |
2167 | struct device_attribute *attr, char *buf) | |
2168 | { | |
36ae1a96 | 2169 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2170 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2171 | struct snd_soc_dapm_widget *w; |
2172 | int count = 0; | |
2173 | char *state = "not set"; | |
2174 | ||
97c866de JN |
2175 | list_for_each_entry(w, &codec->card->widgets, list) { |
2176 | if (w->dapm != &codec->dapm) | |
2177 | continue; | |
2b97eabc RP |
2178 | |
2179 | /* only display widgets that burnm power */ | |
2180 | switch (w->id) { | |
2181 | case snd_soc_dapm_hp: | |
2182 | case snd_soc_dapm_mic: | |
2183 | case snd_soc_dapm_spk: | |
2184 | case snd_soc_dapm_line: | |
2185 | case snd_soc_dapm_micbias: | |
2186 | case snd_soc_dapm_dac: | |
2187 | case snd_soc_dapm_adc: | |
2188 | case snd_soc_dapm_pga: | |
d88429a6 | 2189 | case snd_soc_dapm_out_drv: |
2b97eabc | 2190 | case snd_soc_dapm_mixer: |
ca9c1aae | 2191 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2192 | case snd_soc_dapm_supply: |
62ea874a | 2193 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2194 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2195 | if (w->name) |
2196 | count += sprintf(buf + count, "%s: %s\n", | |
2197 | w->name, w->power ? "On":"Off"); | |
2198 | break; | |
2199 | default: | |
2200 | break; | |
2201 | } | |
2202 | } | |
2203 | ||
ce6120cc | 2204 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2205 | case SND_SOC_BIAS_ON: |
2206 | state = "On"; | |
2b97eabc | 2207 | break; |
0be9898a MB |
2208 | case SND_SOC_BIAS_PREPARE: |
2209 | state = "Prepare"; | |
2b97eabc | 2210 | break; |
0be9898a MB |
2211 | case SND_SOC_BIAS_STANDBY: |
2212 | state = "Standby"; | |
2b97eabc | 2213 | break; |
0be9898a MB |
2214 | case SND_SOC_BIAS_OFF: |
2215 | state = "Off"; | |
2b97eabc RP |
2216 | break; |
2217 | } | |
2218 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2219 | ||
2220 | return count; | |
2221 | } | |
2222 | ||
2223 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2224 | ||
2225 | int snd_soc_dapm_sys_add(struct device *dev) | |
2226 | { | |
12ef193d | 2227 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2228 | } |
2229 | ||
2230 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2231 | { | |
aef90843 | 2232 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2233 | } |
2234 | ||
8872293f LPC |
2235 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2236 | { | |
2237 | list_del(&path->list_sink); | |
2238 | list_del(&path->list_source); | |
5106b92f | 2239 | list_del(&path->list_kcontrol); |
8872293f | 2240 | list_del(&path->list); |
8872293f LPC |
2241 | kfree(path); |
2242 | } | |
2243 | ||
2b97eabc | 2244 | /* free all dapm widgets and resources */ |
ce6120cc | 2245 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2246 | { |
2247 | struct snd_soc_dapm_widget *w, *next_w; | |
2248 | struct snd_soc_dapm_path *p, *next_p; | |
2249 | ||
97c866de JN |
2250 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2251 | if (w->dapm != dapm) | |
2252 | continue; | |
2b97eabc | 2253 | list_del(&w->list); |
8ddab3f5 JN |
2254 | /* |
2255 | * remove source and sink paths associated to this widget. | |
2256 | * While removing the path, remove reference to it from both | |
2257 | * source and sink widgets so that path is removed only once. | |
2258 | */ | |
8872293f LPC |
2259 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2260 | dapm_free_path(p); | |
2261 | ||
2262 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2263 | dapm_free_path(p); | |
2264 | ||
fad59888 | 2265 | kfree(w->kcontrols); |
ead9b919 | 2266 | kfree(w->name); |
2b97eabc RP |
2267 | kfree(w); |
2268 | } | |
2b97eabc RP |
2269 | } |
2270 | ||
91a5fca4 LPC |
2271 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2272 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2273 | bool search_other_contexts) | |
a5302181 LG |
2274 | { |
2275 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2276 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2277 | |
97c866de | 2278 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2279 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2280 | if (w->dapm == dapm) |
2281 | return w; | |
2282 | else | |
2283 | fallback = w; | |
a5302181 LG |
2284 | } |
2285 | } | |
2286 | ||
91a5fca4 LPC |
2287 | if (search_other_contexts) |
2288 | return fallback; | |
2289 | ||
2290 | return NULL; | |
2291 | } | |
2292 | ||
2293 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2294 | const char *pin, int status) | |
2295 | { | |
2296 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2297 | ||
2298 | if (!w) { | |
30a6a1a4 | 2299 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2300 | return -EINVAL; |
0d86733c MB |
2301 | } |
2302 | ||
1a8b2d9d MB |
2303 | if (w->connected != status) |
2304 | dapm_mark_dirty(w, "pin configuration"); | |
2305 | ||
91a5fca4 LPC |
2306 | w->connected = status; |
2307 | if (status == 0) | |
2308 | w->force = 0; | |
2309 | ||
2310 | return 0; | |
a5302181 LG |
2311 | } |
2312 | ||
2b97eabc | 2313 | /** |
a5302181 | 2314 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2315 | * @dapm: DAPM context |
2b97eabc RP |
2316 | * |
2317 | * Walks all dapm audio paths and powers widgets according to their | |
2318 | * stream or path usage. | |
2319 | * | |
2320 | * Returns 0 for success. | |
2321 | */ | |
ce6120cc | 2322 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2323 | { |
a73fb2df LG |
2324 | int ret; |
2325 | ||
4f4c0072 MB |
2326 | /* |
2327 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2328 | * silly DAPM runs during card startup. | |
2329 | */ | |
2330 | if (!dapm->card || !dapm->card->instantiated) | |
2331 | return 0; | |
2332 | ||
3cd04343 | 2333 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
95dd5cd6 | 2334 | ret = dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df LG |
2335 | mutex_unlock(&dapm->card->dapm_mutex); |
2336 | return ret; | |
2b97eabc | 2337 | } |
a5302181 | 2338 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2339 | |
2553628e LPC |
2340 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2341 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2342 | const char *control, | |
2343 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2344 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2345 | { |
2346 | struct snd_soc_dapm_path *path; | |
2553628e | 2347 | int ret; |
2b97eabc RP |
2348 | |
2349 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2350 | if (!path) | |
2351 | return -ENOMEM; | |
2352 | ||
2353 | path->source = wsource; | |
2354 | path->sink = wsink; | |
2553628e | 2355 | path->connected = connected; |
2b97eabc | 2356 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2357 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2358 | INIT_LIST_HEAD(&path->list_source); |
2359 | INIT_LIST_HEAD(&path->list_sink); | |
2360 | ||
2361 | /* check for external widgets */ | |
2362 | if (wsink->id == snd_soc_dapm_input) { | |
2363 | if (wsource->id == snd_soc_dapm_micbias || | |
2364 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2365 | wsource->id == snd_soc_dapm_line || |
2366 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2367 | wsink->ext = 1; |
2368 | } | |
2369 | if (wsource->id == snd_soc_dapm_output) { | |
2370 | if (wsink->id == snd_soc_dapm_spk || | |
2371 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2372 | wsink->id == snd_soc_dapm_line || |
2373 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2374 | wsource->ext = 1; |
2375 | } | |
2376 | ||
34742cb0 LPC |
2377 | dapm_mark_dirty(wsource, "Route added"); |
2378 | dapm_mark_dirty(wsink, "Route added"); | |
2379 | ||
2b97eabc RP |
2380 | /* connect static paths */ |
2381 | if (control == NULL) { | |
8ddab3f5 | 2382 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2383 | list_add(&path->list_sink, &wsink->sources); |
2384 | list_add(&path->list_source, &wsource->sinks); | |
2385 | path->connect = 1; | |
2386 | return 0; | |
2387 | } | |
2388 | ||
2389 | /* connect dynamic paths */ | |
dc2bea61 | 2390 | switch (wsink->id) { |
2b97eabc RP |
2391 | case snd_soc_dapm_adc: |
2392 | case snd_soc_dapm_dac: | |
2393 | case snd_soc_dapm_pga: | |
d88429a6 | 2394 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2395 | case snd_soc_dapm_input: |
2396 | case snd_soc_dapm_output: | |
1ab97c8c | 2397 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2398 | case snd_soc_dapm_micbias: |
2399 | case snd_soc_dapm_vmid: | |
2400 | case snd_soc_dapm_pre: | |
2401 | case snd_soc_dapm_post: | |
246d0a17 | 2402 | case snd_soc_dapm_supply: |
62ea874a | 2403 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2404 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2405 | case snd_soc_dapm_aif_in: |
2406 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2407 | case snd_soc_dapm_dai_in: |
2408 | case snd_soc_dapm_dai_out: | |
c74184ed | 2409 | case snd_soc_dapm_dai_link: |
57295073 | 2410 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2411 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2412 | list_add(&path->list_sink, &wsink->sources); |
2413 | list_add(&path->list_source, &wsource->sinks); | |
2414 | path->connect = 1; | |
2415 | return 0; | |
2416 | case snd_soc_dapm_mux: | |
24ff33ac | 2417 | case snd_soc_dapm_virt_mux: |
74155556 | 2418 | case snd_soc_dapm_value_mux: |
ce6120cc | 2419 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2420 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2421 | if (ret != 0) |
2422 | goto err; | |
2423 | break; | |
2424 | case snd_soc_dapm_switch: | |
2425 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2426 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2427 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2428 | if (ret != 0) |
2429 | goto err; | |
2430 | break; | |
2431 | case snd_soc_dapm_hp: | |
2432 | case snd_soc_dapm_mic: | |
2433 | case snd_soc_dapm_line: | |
2434 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2435 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2436 | list_add(&path->list_sink, &wsink->sources); |
2437 | list_add(&path->list_source, &wsource->sinks); | |
2438 | path->connect = 0; | |
2439 | return 0; | |
2440 | } | |
fabd0384 | 2441 | |
2b97eabc | 2442 | return 0; |
2553628e LPC |
2443 | err: |
2444 | kfree(path); | |
2445 | return ret; | |
2446 | } | |
2b97eabc | 2447 | |
2553628e LPC |
2448 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
2449 | const struct snd_soc_dapm_route *route) | |
2450 | { | |
2451 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2452 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2453 | const char *sink; | |
2454 | const char *source; | |
2455 | char prefixed_sink[80]; | |
2456 | char prefixed_source[80]; | |
2457 | int ret; | |
2458 | ||
2459 | if (dapm->codec && dapm->codec->name_prefix) { | |
2460 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2461 | dapm->codec->name_prefix, route->sink); | |
2462 | sink = prefixed_sink; | |
2463 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2464 | dapm->codec->name_prefix, route->source); | |
2465 | source = prefixed_source; | |
2466 | } else { | |
2467 | sink = route->sink; | |
2468 | source = route->source; | |
2469 | } | |
2470 | ||
2471 | /* | |
2472 | * find src and dest widgets over all widgets but favor a widget from | |
2473 | * current DAPM context | |
2474 | */ | |
2475 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2476 | if (!wsink && !(strcmp(w->name, sink))) { | |
2477 | wtsink = w; | |
2478 | if (w->dapm == dapm) | |
2479 | wsink = w; | |
2480 | continue; | |
2481 | } | |
2482 | if (!wsource && !(strcmp(w->name, source))) { | |
2483 | wtsource = w; | |
2484 | if (w->dapm == dapm) | |
2485 | wsource = w; | |
2486 | } | |
2487 | } | |
2488 | /* use widget from another DAPM context if not found from this */ | |
2489 | if (!wsink) | |
2490 | wsink = wtsink; | |
2491 | if (!wsource) | |
2492 | wsource = wtsource; | |
2493 | ||
2494 | if (wsource == NULL) { | |
2495 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2496 | route->source); | |
2497 | return -ENODEV; | |
2498 | } | |
2499 | if (wsink == NULL) { | |
2500 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2501 | route->sink); | |
2502 | return -ENODEV; | |
2503 | } | |
2504 | ||
2505 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2506 | route->connected); | |
2507 | if (ret) | |
2508 | goto err; | |
2509 | ||
2510 | return 0; | |
2b97eabc | 2511 | err: |
30a6a1a4 | 2512 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2513 | source, route->control, sink); |
2b97eabc RP |
2514 | return ret; |
2515 | } | |
105f1c28 | 2516 | |
efcc3c61 MB |
2517 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2518 | const struct snd_soc_dapm_route *route) | |
2519 | { | |
2520 | struct snd_soc_dapm_path *path, *p; | |
2521 | const char *sink; | |
2522 | const char *source; | |
2523 | char prefixed_sink[80]; | |
2524 | char prefixed_source[80]; | |
2525 | ||
2526 | if (route->control) { | |
2527 | dev_err(dapm->dev, | |
30a6a1a4 | 2528 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2529 | return -EINVAL; |
2530 | } | |
2531 | ||
2532 | if (dapm->codec && dapm->codec->name_prefix) { | |
2533 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2534 | dapm->codec->name_prefix, route->sink); | |
2535 | sink = prefixed_sink; | |
2536 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2537 | dapm->codec->name_prefix, route->source); | |
2538 | source = prefixed_source; | |
2539 | } else { | |
2540 | sink = route->sink; | |
2541 | source = route->source; | |
2542 | } | |
2543 | ||
2544 | path = NULL; | |
2545 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2546 | if (strcmp(p->source->name, source) != 0) | |
2547 | continue; | |
2548 | if (strcmp(p->sink->name, sink) != 0) | |
2549 | continue; | |
2550 | path = p; | |
2551 | break; | |
2552 | } | |
2553 | ||
2554 | if (path) { | |
2555 | dapm_mark_dirty(path->source, "Route removed"); | |
2556 | dapm_mark_dirty(path->sink, "Route removed"); | |
2557 | ||
8872293f | 2558 | dapm_free_path(path); |
efcc3c61 | 2559 | } else { |
30a6a1a4 | 2560 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2561 | source, sink); |
2562 | } | |
2563 | ||
2564 | return 0; | |
2565 | } | |
2566 | ||
105f1c28 MB |
2567 | /** |
2568 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2569 | * @dapm: DAPM context |
105f1c28 MB |
2570 | * @route: audio routes |
2571 | * @num: number of routes | |
2572 | * | |
2573 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2574 | * the widget receiving the audio signal, whilst the source is the sender | |
2575 | * of the audio signal. | |
2576 | * | |
2577 | * Returns 0 for success else error. On error all resources can be freed | |
2578 | * with a call to snd_soc_card_free(). | |
2579 | */ | |
ce6120cc | 2580 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2581 | const struct snd_soc_dapm_route *route, int num) |
2582 | { | |
62d4a4b9 | 2583 | int i, r, ret = 0; |
105f1c28 | 2584 | |
a73fb2df | 2585 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2586 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2587 | r = snd_soc_dapm_add_route(dapm, route); |
2588 | if (r < 0) { | |
30a6a1a4 LG |
2589 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2590 | route->source, | |
2591 | route->control ? route->control : "direct", | |
2592 | route->sink); | |
62d4a4b9 | 2593 | ret = r; |
105f1c28 MB |
2594 | } |
2595 | route++; | |
2596 | } | |
a73fb2df | 2597 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2598 | |
60884c27 | 2599 | return ret; |
105f1c28 MB |
2600 | } |
2601 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2602 | ||
efcc3c61 MB |
2603 | /** |
2604 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2605 | * @dapm: DAPM context | |
2606 | * @route: audio routes | |
2607 | * @num: number of routes | |
2608 | * | |
2609 | * Removes routes from the DAPM context. | |
2610 | */ | |
2611 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2612 | const struct snd_soc_dapm_route *route, int num) | |
2613 | { | |
2614 | int i, ret = 0; | |
2615 | ||
2616 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2617 | for (i = 0; i < num; i++) { | |
2618 | snd_soc_dapm_del_route(dapm, route); | |
2619 | route++; | |
2620 | } | |
2621 | mutex_unlock(&dapm->card->dapm_mutex); | |
2622 | ||
2623 | return ret; | |
2624 | } | |
2625 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2626 | ||
bf3a9e13 MB |
2627 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2628 | const struct snd_soc_dapm_route *route) | |
2629 | { | |
2630 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2631 | route->source, | |
2632 | true); | |
2633 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2634 | route->sink, | |
2635 | true); | |
2636 | struct snd_soc_dapm_path *path; | |
2637 | int count = 0; | |
2638 | ||
2639 | if (!source) { | |
30a6a1a4 | 2640 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2641 | route->source); |
2642 | return -ENODEV; | |
2643 | } | |
2644 | ||
2645 | if (!sink) { | |
30a6a1a4 | 2646 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2647 | route->sink); |
2648 | return -ENODEV; | |
2649 | } | |
2650 | ||
2651 | if (route->control || route->connected) | |
30a6a1a4 | 2652 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2653 | route->source, route->sink); |
2654 | ||
2655 | list_for_each_entry(path, &source->sinks, list_source) { | |
2656 | if (path->sink == sink) { | |
2657 | path->weak = 1; | |
2658 | count++; | |
2659 | } | |
2660 | } | |
2661 | ||
2662 | if (count == 0) | |
30a6a1a4 | 2663 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2664 | route->source, route->sink); |
2665 | if (count > 1) | |
30a6a1a4 | 2666 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2667 | count, route->source, route->sink); |
2668 | ||
2669 | return 0; | |
2670 | } | |
2671 | ||
2672 | /** | |
2673 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2674 | * @dapm: DAPM context | |
2675 | * @route: audio routes | |
2676 | * @num: number of routes | |
2677 | * | |
2678 | * Mark existing routes matching those specified in the passed array | |
2679 | * as being weak, meaning that they are ignored for the purpose of | |
2680 | * power decisions. The main intended use case is for sidetone paths | |
2681 | * which couple audio between other independent paths if they are both | |
2682 | * active in order to make the combination work better at the user | |
2683 | * level but which aren't intended to be "used". | |
2684 | * | |
2685 | * Note that CODEC drivers should not use this as sidetone type paths | |
2686 | * can frequently also be used as bypass paths. | |
2687 | */ | |
2688 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2689 | const struct snd_soc_dapm_route *route, int num) | |
2690 | { | |
2691 | int i, err; | |
2692 | int ret = 0; | |
2693 | ||
a73fb2df | 2694 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2695 | for (i = 0; i < num; i++) { |
2696 | err = snd_soc_dapm_weak_route(dapm, route); | |
2697 | if (err) | |
2698 | ret = err; | |
2699 | route++; | |
2700 | } | |
a73fb2df | 2701 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2702 | |
2703 | return ret; | |
2704 | } | |
2705 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2706 | ||
2b97eabc RP |
2707 | /** |
2708 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2709 | * @dapm: DAPM context |
2b97eabc RP |
2710 | * |
2711 | * Checks the codec for any new dapm widgets and creates them if found. | |
2712 | * | |
2713 | * Returns 0 for success. | |
2714 | */ | |
ce6120cc | 2715 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2716 | { |
95dd5cd6 | 2717 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 2718 | struct snd_soc_dapm_widget *w; |
b66a70d5 | 2719 | unsigned int val; |
2b97eabc | 2720 | |
95dd5cd6 | 2721 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2722 | |
95dd5cd6 | 2723 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2724 | { |
2725 | if (w->new) | |
2726 | continue; | |
2727 | ||
fad59888 SW |
2728 | if (w->num_kcontrols) { |
2729 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2730 | sizeof(struct snd_kcontrol *), | |
2731 | GFP_KERNEL); | |
a73fb2df | 2732 | if (!w->kcontrols) { |
95dd5cd6 | 2733 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2734 | return -ENOMEM; |
a73fb2df | 2735 | } |
fad59888 SW |
2736 | } |
2737 | ||
2b97eabc RP |
2738 | switch(w->id) { |
2739 | case snd_soc_dapm_switch: | |
2740 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2741 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2742 | dapm_new_mixer(w); |
2b97eabc RP |
2743 | break; |
2744 | case snd_soc_dapm_mux: | |
24ff33ac | 2745 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2746 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2747 | dapm_new_mux(w); |
2b97eabc | 2748 | break; |
2b97eabc | 2749 | case snd_soc_dapm_pga: |
d88429a6 | 2750 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2751 | dapm_new_pga(w); |
2b97eabc | 2752 | break; |
7ca3a18b | 2753 | default: |
2b97eabc RP |
2754 | break; |
2755 | } | |
b66a70d5 MB |
2756 | |
2757 | /* Read the initial power state from the device */ | |
2758 | if (w->reg >= 0) { | |
de9ba98b LPC |
2759 | val = soc_widget_read(w, w->reg) >> w->shift; |
2760 | val &= w->mask; | |
2761 | if (val == w->on_val) | |
b66a70d5 MB |
2762 | w->power = 1; |
2763 | } | |
2764 | ||
2b97eabc | 2765 | w->new = 1; |
d5d1e0be | 2766 | |
7508b12a | 2767 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2768 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2769 | } |
2770 | ||
95dd5cd6 LPC |
2771 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2772 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2773 | return 0; |
2774 | } | |
2775 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2776 | ||
2777 | /** | |
2778 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2779 | * @kcontrol: mixer control | |
ac11a2b3 | 2780 | * @ucontrol: control element information |
2b97eabc RP |
2781 | * |
2782 | * Callback to get the value of a dapm mixer control. | |
2783 | * | |
2784 | * Returns 0 for success. | |
2785 | */ | |
2786 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2787 | struct snd_ctl_elem_value *ucontrol) | |
2788 | { | |
eee5d7f9 | 2789 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2790 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2791 | struct soc_mixer_control *mc = |
2792 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2793 | unsigned int reg = mc->reg; |
2794 | unsigned int shift = mc->shift; | |
4eaa9819 | 2795 | int max = mc->max; |
815ecf8d | 2796 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2797 | unsigned int invert = mc->invert; |
57295073 | 2798 | unsigned int val; |
da602ab8 BT |
2799 | |
2800 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2801 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2802 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2803 | kcontrol->id.name); |
2b97eabc | 2804 | |
57295073 LPC |
2805 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2806 | if (dapm_kcontrol_is_powered(kcontrol)) | |
2807 | val = (snd_soc_read(codec, reg) >> shift) & mask; | |
2808 | else | |
2809 | val = dapm_kcontrol_get_value(kcontrol); | |
2810 | mutex_unlock(&card->dapm_mutex); | |
2811 | ||
da602ab8 | 2812 | if (invert) |
57295073 LPC |
2813 | ucontrol->value.integer.value[0] = max - val; |
2814 | else | |
2815 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2816 | |
2817 | return 0; | |
2818 | } | |
2819 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2820 | ||
2821 | /** | |
2822 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2823 | * @kcontrol: mixer control | |
ac11a2b3 | 2824 | * @ucontrol: control element information |
2b97eabc RP |
2825 | * |
2826 | * Callback to set the value of a dapm mixer control. | |
2827 | * | |
2828 | * Returns 0 for success. | |
2829 | */ | |
2830 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2831 | struct snd_ctl_elem_value *ucontrol) | |
2832 | { | |
eee5d7f9 | 2833 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2834 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2835 | struct soc_mixer_control *mc = |
2836 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2837 | unsigned int reg = mc->reg; |
2838 | unsigned int shift = mc->shift; | |
4eaa9819 | 2839 | int max = mc->max; |
815ecf8d JS |
2840 | unsigned int mask = (1 << fls(max)) - 1; |
2841 | unsigned int invert = mc->invert; | |
e9cf7049 | 2842 | unsigned int val; |
97404f2e MB |
2843 | int connect, change; |
2844 | struct snd_soc_dapm_update update; | |
2b97eabc | 2845 | |
da602ab8 | 2846 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2847 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2848 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2849 | kcontrol->id.name); |
2850 | ||
2b97eabc | 2851 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2852 | connect = !!val; |
2b97eabc RP |
2853 | |
2854 | if (invert) | |
a7a4ac86 | 2855 | val = max - val; |
2b97eabc | 2856 | |
3cd04343 | 2857 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2858 | |
57295073 LPC |
2859 | dapm_kcontrol_set_value(kcontrol, val); |
2860 | ||
2861 | mask = mask << shift; | |
2862 | val = val << shift; | |
2863 | ||
eee5d7f9 | 2864 | change = snd_soc_test_bits(codec, reg, mask, val); |
97404f2e | 2865 | if (change) { |
ce6cfaf1 LPC |
2866 | update.kcontrol = kcontrol; |
2867 | update.reg = reg; | |
2868 | update.mask = mask; | |
2869 | update.val = val; | |
97404f2e | 2870 | |
564c6504 | 2871 | card->update = &update; |
97404f2e | 2872 | |
95dd5cd6 | 2873 | soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2874 | |
564c6504 | 2875 | card->update = NULL; |
283375ce MB |
2876 | } |
2877 | ||
a73fb2df | 2878 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2879 | return change; |
2b97eabc RP |
2880 | } |
2881 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2882 | ||
2883 | /** | |
2884 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2885 | * @kcontrol: mixer control | |
ac11a2b3 | 2886 | * @ucontrol: control element information |
2b97eabc RP |
2887 | * |
2888 | * Callback to get the value of a dapm enumerated double mixer control. | |
2889 | * | |
2890 | * Returns 0 for success. | |
2891 | */ | |
2892 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2893 | struct snd_ctl_elem_value *ucontrol) | |
2894 | { | |
eee5d7f9 | 2895 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2896 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2897 | unsigned int val; |
2b97eabc | 2898 | |
eee5d7f9 | 2899 | val = snd_soc_read(codec, e->reg); |
86767b7d | 2900 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2901 | if (e->shift_l != e->shift_r) |
2902 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2903 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2904 | |
2905 | return 0; | |
2906 | } | |
2907 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2908 | ||
2909 | /** | |
2910 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2911 | * @kcontrol: mixer control | |
ac11a2b3 | 2912 | * @ucontrol: control element information |
2b97eabc RP |
2913 | * |
2914 | * Callback to set the value of a dapm enumerated double mixer control. | |
2915 | * | |
2916 | * Returns 0 for success. | |
2917 | */ | |
2918 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2919 | struct snd_ctl_elem_value *ucontrol) | |
2920 | { | |
cf7c1de2 | 2921 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2922 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2923 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2924 | unsigned int val, mux, change; |
86767b7d | 2925 | unsigned int mask; |
97404f2e | 2926 | struct snd_soc_dapm_update update; |
2b97eabc | 2927 | |
f8ba0b7b | 2928 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2929 | return -EINVAL; |
2930 | mux = ucontrol->value.enumerated.item[0]; | |
2931 | val = mux << e->shift_l; | |
86767b7d | 2932 | mask = e->mask << e->shift_l; |
2b97eabc | 2933 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2934 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2935 | return -EINVAL; |
2936 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2937 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2938 | } |
2939 | ||
3cd04343 | 2940 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2941 | |
eee5d7f9 | 2942 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2943 | if (change) { |
ce6cfaf1 LPC |
2944 | update.kcontrol = kcontrol; |
2945 | update.reg = e->reg; | |
2946 | update.mask = mask; | |
2947 | update.val = val; | |
564c6504 | 2948 | card->update = &update; |
1642e3d4 | 2949 | |
95dd5cd6 | 2950 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
1642e3d4 | 2951 | |
564c6504 | 2952 | card->update = NULL; |
fafd2176 | 2953 | } |
2b97eabc | 2954 | |
a73fb2df | 2955 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2956 | return change; |
2b97eabc RP |
2957 | } |
2958 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2959 | ||
d2b247a8 MB |
2960 | /** |
2961 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2962 | * @kcontrol: mixer control | |
2963 | * @ucontrol: control element information | |
2964 | * | |
2965 | * Returns 0 for success. | |
2966 | */ | |
2967 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2968 | struct snd_ctl_elem_value *ucontrol) | |
2969 | { | |
cf7c1de2 | 2970 | ucontrol->value.enumerated.item[0] = dapm_kcontrol_get_value(kcontrol); |
d2b247a8 MB |
2971 | return 0; |
2972 | } | |
2973 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2974 | ||
2975 | /** | |
2976 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2977 | * @kcontrol: mixer control | |
2978 | * @ucontrol: control element information | |
2979 | * | |
2980 | * Returns 0 for success. | |
2981 | */ | |
2982 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2983 | struct snd_ctl_elem_value *ucontrol) | |
2984 | { | |
cf7c1de2 | 2985 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2986 | struct snd_soc_card *card = codec->card; |
cf7c1de2 | 2987 | unsigned int value; |
d2b247a8 MB |
2988 | struct soc_enum *e = |
2989 | (struct soc_enum *)kcontrol->private_value; | |
2990 | int change; | |
d2b247a8 MB |
2991 | |
2992 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2993 | return -EINVAL; | |
2994 | ||
3cd04343 | 2995 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 | 2996 | |
cf7c1de2 LPC |
2997 | value = ucontrol->value.enumerated.item[0]; |
2998 | change = dapm_kcontrol_set_value(kcontrol, value); | |
2999 | if (change) | |
3000 | soc_dapm_mux_update_power(card, kcontrol, value, e); | |
d2b247a8 | 3001 | |
a73fb2df | 3002 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 3003 | return change; |
d2b247a8 MB |
3004 | } |
3005 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
3006 | ||
2e72f8e3 PU |
3007 | /** |
3008 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
3009 | * callback | |
3010 | * @kcontrol: mixer control | |
3011 | * @ucontrol: control element information | |
3012 | * | |
3013 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
3014 | * | |
3015 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3016 | * used for handling bitfield coded enumeration for example. | |
3017 | * | |
3018 | * Returns 0 for success. | |
3019 | */ | |
3020 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
3021 | struct snd_ctl_elem_value *ucontrol) | |
3022 | { | |
eee5d7f9 | 3023 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
74155556 | 3024 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 3025 | unsigned int reg_val, val, mux; |
2e72f8e3 | 3026 | |
eee5d7f9 | 3027 | reg_val = snd_soc_read(codec, e->reg); |
2e72f8e3 PU |
3028 | val = (reg_val >> e->shift_l) & e->mask; |
3029 | for (mux = 0; mux < e->max; mux++) { | |
3030 | if (val == e->values[mux]) | |
3031 | break; | |
3032 | } | |
3033 | ucontrol->value.enumerated.item[0] = mux; | |
3034 | if (e->shift_l != e->shift_r) { | |
3035 | val = (reg_val >> e->shift_r) & e->mask; | |
3036 | for (mux = 0; mux < e->max; mux++) { | |
3037 | if (val == e->values[mux]) | |
3038 | break; | |
3039 | } | |
3040 | ucontrol->value.enumerated.item[1] = mux; | |
3041 | } | |
3042 | ||
3043 | return 0; | |
3044 | } | |
3045 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
3046 | ||
3047 | /** | |
3048 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
3049 | * callback | |
3050 | * @kcontrol: mixer control | |
3051 | * @ucontrol: control element information | |
3052 | * | |
3053 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
3054 | * | |
3055 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3056 | * used for handling bitfield coded enumeration for example. | |
3057 | * | |
3058 | * Returns 0 for success. | |
3059 | */ | |
3060 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
3061 | struct snd_ctl_elem_value *ucontrol) | |
3062 | { | |
cf7c1de2 | 3063 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3064 | struct snd_soc_card *card = codec->card; |
74155556 | 3065 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 3066 | unsigned int val, mux, change; |
46f5822f | 3067 | unsigned int mask; |
97404f2e | 3068 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
3069 | |
3070 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
3071 | return -EINVAL; | |
3072 | mux = ucontrol->value.enumerated.item[0]; | |
3073 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
3074 | mask = e->mask << e->shift_l; | |
3075 | if (e->shift_l != e->shift_r) { | |
3076 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
3077 | return -EINVAL; | |
3078 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
3079 | mask |= e->mask << e->shift_r; | |
3080 | } | |
3081 | ||
3cd04343 | 3082 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3083 | |
eee5d7f9 | 3084 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 3085 | if (change) { |
ce6cfaf1 LPC |
3086 | update.kcontrol = kcontrol; |
3087 | update.reg = e->reg; | |
3088 | update.mask = mask; | |
3089 | update.val = val; | |
564c6504 | 3090 | card->update = &update; |
1642e3d4 | 3091 | |
95dd5cd6 | 3092 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
fafd2176 | 3093 | |
564c6504 | 3094 | card->update = NULL; |
fafd2176 | 3095 | } |
2e72f8e3 | 3096 | |
a73fb2df | 3097 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 3098 | return change; |
2e72f8e3 PU |
3099 | } |
3100 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
3101 | ||
8b37dbd2 MB |
3102 | /** |
3103 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3104 | * | |
3105 | * @kcontrol: mixer control | |
3106 | * @uinfo: control element information | |
3107 | * | |
3108 | * Callback to provide information about a pin switch control. | |
3109 | */ | |
3110 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3111 | struct snd_ctl_elem_info *uinfo) | |
3112 | { | |
3113 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3114 | uinfo->count = 1; | |
3115 | uinfo->value.integer.min = 0; | |
3116 | uinfo->value.integer.max = 1; | |
3117 | ||
3118 | return 0; | |
3119 | } | |
3120 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3121 | ||
3122 | /** | |
3123 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3124 | * | |
3125 | * @kcontrol: mixer control | |
3126 | * @ucontrol: Value | |
3127 | */ | |
3128 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3129 | struct snd_ctl_elem_value *ucontrol) | |
3130 | { | |
48a8c394 | 3131 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3132 | const char *pin = (const char *)kcontrol->private_value; |
3133 | ||
3cd04343 | 3134 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3135 | |
3136 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3137 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3138 | |
a73fb2df | 3139 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3140 | |
3141 | return 0; | |
3142 | } | |
3143 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3144 | ||
3145 | /** | |
3146 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3147 | * | |
3148 | * @kcontrol: mixer control | |
3149 | * @ucontrol: Value | |
3150 | */ | |
3151 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3152 | struct snd_ctl_elem_value *ucontrol) | |
3153 | { | |
48a8c394 | 3154 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3155 | const char *pin = (const char *)kcontrol->private_value; |
3156 | ||
3cd04343 | 3157 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3158 | |
3159 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3160 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3161 | else |
48a8c394 | 3162 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3163 | |
a73fb2df | 3164 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3165 | |
a73fb2df | 3166 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3167 | return 0; |
3168 | } | |
3169 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3170 | ||
5ba06fc9 MB |
3171 | static struct snd_soc_dapm_widget * |
3172 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3173 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3174 | { |
3175 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3176 | int ret; |
2b97eabc RP |
3177 | |
3178 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3179 | return NULL; |
2b97eabc | 3180 | |
62ea874a MB |
3181 | switch (w->id) { |
3182 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3183 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3184 | if (IS_ERR(w->regulator)) { | |
3185 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3186 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3187 | w->name, ret); |
5ba06fc9 | 3188 | return NULL; |
62ea874a | 3189 | } |
8784c77a | 3190 | |
de9ba98b | 3191 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3192 | ret = regulator_allow_bypass(w->regulator, true); |
3193 | if (ret != 0) | |
3194 | dev_warn(w->dapm->dev, | |
3195 | "ASoC: Failed to unbypass %s: %d\n", | |
3196 | w->name, ret); | |
3197 | } | |
62ea874a | 3198 | break; |
d7e7eb91 | 3199 | case snd_soc_dapm_clock_supply: |
165961ef | 3200 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3201 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3202 | if (IS_ERR(w->clk)) { |
3203 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3204 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3205 | w->name, ret); |
3206 | return NULL; | |
3207 | } | |
ec02995a MB |
3208 | #else |
3209 | return NULL; | |
3210 | #endif | |
d7e7eb91 | 3211 | break; |
62ea874a MB |
3212 | default: |
3213 | break; | |
3214 | } | |
2b97eabc | 3215 | |
88e8b9a8 | 3216 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3217 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3218 | dapm->codec->name_prefix, widget->name); | |
3219 | else | |
3220 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3221 | ||
ead9b919 JN |
3222 | if (w->name == NULL) { |
3223 | kfree(w); | |
5ba06fc9 | 3224 | return NULL; |
ead9b919 | 3225 | } |
ead9b919 | 3226 | |
7ca3a18b MB |
3227 | switch (w->id) { |
3228 | case snd_soc_dapm_switch: | |
3229 | case snd_soc_dapm_mixer: | |
3230 | case snd_soc_dapm_mixer_named_ctl: | |
3231 | w->power_check = dapm_generic_check_power; | |
3232 | break; | |
3233 | case snd_soc_dapm_mux: | |
3234 | case snd_soc_dapm_virt_mux: | |
3235 | case snd_soc_dapm_value_mux: | |
3236 | w->power_check = dapm_generic_check_power; | |
3237 | break; | |
4616274d | 3238 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3239 | w->power_check = dapm_adc_check_power; |
3240 | break; | |
4616274d | 3241 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3242 | w->power_check = dapm_dac_check_power; |
3243 | break; | |
63c69a6e MB |
3244 | case snd_soc_dapm_adc: |
3245 | case snd_soc_dapm_aif_out: | |
3246 | case snd_soc_dapm_dac: | |
3247 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3248 | case snd_soc_dapm_pga: |
3249 | case snd_soc_dapm_out_drv: | |
3250 | case snd_soc_dapm_input: | |
3251 | case snd_soc_dapm_output: | |
3252 | case snd_soc_dapm_micbias: | |
3253 | case snd_soc_dapm_spk: | |
3254 | case snd_soc_dapm_hp: | |
3255 | case snd_soc_dapm_mic: | |
3256 | case snd_soc_dapm_line: | |
c74184ed | 3257 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3258 | w->power_check = dapm_generic_check_power; |
3259 | break; | |
3260 | case snd_soc_dapm_supply: | |
62ea874a | 3261 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3262 | case snd_soc_dapm_clock_supply: |
57295073 | 3263 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3264 | w->power_check = dapm_supply_check_power; |
3265 | break; | |
3266 | default: | |
3267 | w->power_check = dapm_always_on_check_power; | |
3268 | break; | |
3269 | } | |
3270 | ||
ce6120cc LG |
3271 | w->dapm = dapm; |
3272 | w->codec = dapm->codec; | |
b7950641 | 3273 | w->platform = dapm->platform; |
2b97eabc RP |
3274 | INIT_LIST_HEAD(&w->sources); |
3275 | INIT_LIST_HEAD(&w->sinks); | |
3276 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3277 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3278 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3279 | |
3280 | /* machine layer set ups unconnected pins and insertions */ | |
3281 | w->connected = 1; | |
5ba06fc9 | 3282 | return w; |
2b97eabc | 3283 | } |
2b97eabc | 3284 | |
4ba1327a MB |
3285 | /** |
3286 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3287 | * @dapm: DAPM context |
4ba1327a MB |
3288 | * @widget: widget array |
3289 | * @num: number of widgets | |
3290 | * | |
3291 | * Creates new DAPM controls based upon the templates. | |
3292 | * | |
3293 | * Returns 0 for success else error. | |
3294 | */ | |
ce6120cc | 3295 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3296 | const struct snd_soc_dapm_widget *widget, |
3297 | int num) | |
3298 | { | |
5ba06fc9 MB |
3299 | struct snd_soc_dapm_widget *w; |
3300 | int i; | |
60884c27 | 3301 | int ret = 0; |
4ba1327a | 3302 | |
a73fb2df | 3303 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3304 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3305 | w = snd_soc_dapm_new_control(dapm, widget); |
3306 | if (!w) { | |
f7d41ae8 | 3307 | dev_err(dapm->dev, |
5ba06fc9 MB |
3308 | "ASoC: Failed to create DAPM control %s\n", |
3309 | widget->name); | |
60884c27 DC |
3310 | ret = -ENOMEM; |
3311 | break; | |
b8b33cb5 | 3312 | } |
4ba1327a MB |
3313 | widget++; |
3314 | } | |
a73fb2df | 3315 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3316 | return ret; |
4ba1327a MB |
3317 | } |
3318 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3319 | ||
c74184ed MB |
3320 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3321 | struct snd_kcontrol *kcontrol, int event) | |
3322 | { | |
3323 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3324 | struct snd_soc_dai *source, *sink; | |
3325 | const struct snd_soc_pcm_stream *config = w->params; | |
3326 | struct snd_pcm_substream substream; | |
9747cec2 | 3327 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3328 | u64 fmt; |
3329 | int ret; | |
3330 | ||
3331 | BUG_ON(!config); | |
3332 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3333 | ||
3334 | /* We only support a single source and sink, pick the first */ | |
3335 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3336 | list_sink); | |
3337 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3338 | list_source); | |
3339 | ||
3340 | BUG_ON(!source_p || !sink_p); | |
3341 | BUG_ON(!sink_p->source || !source_p->sink); | |
3342 | BUG_ON(!source_p->source || !sink_p->sink); | |
3343 | ||
3344 | source = source_p->source->priv; | |
3345 | sink = sink_p->sink->priv; | |
3346 | ||
3347 | /* Be a little careful as we don't want to overflow the mask array */ | |
3348 | if (config->formats) { | |
3349 | fmt = ffs(config->formats) - 1; | |
3350 | } else { | |
30a6a1a4 | 3351 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3352 | config->formats); |
3353 | fmt = 0; | |
3354 | } | |
3355 | ||
3356 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3357 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3358 | if (!params) { | |
3359 | ret = -ENOMEM; | |
3360 | goto out; | |
3361 | } | |
3362 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3363 | |
9747cec2 | 3364 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3365 | config->rate_min; |
9747cec2 | 3366 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3367 | config->rate_max; |
3368 | ||
9747cec2 | 3369 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3370 | = config->channels_min; |
9747cec2 | 3371 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3372 | = config->channels_max; |
3373 | ||
3374 | memset(&substream, 0, sizeof(substream)); | |
3375 | ||
3376 | switch (event) { | |
3377 | case SND_SOC_DAPM_PRE_PMU: | |
3378 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3379 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3380 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3381 | params, source); |
c74184ed MB |
3382 | if (ret != 0) { |
3383 | dev_err(source->dev, | |
30a6a1a4 | 3384 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3385 | goto out; |
c74184ed MB |
3386 | } |
3387 | } | |
3388 | ||
3389 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3390 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3391 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3392 | sink); |
3393 | if (ret != 0) { | |
3394 | dev_err(sink->dev, | |
30a6a1a4 | 3395 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3396 | goto out; |
c74184ed MB |
3397 | } |
3398 | } | |
3399 | break; | |
3400 | ||
3401 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3402 | ret = snd_soc_dai_digital_mute(sink, 0, |
3403 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3404 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3405 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3406 | ret = 0; |
c74184ed MB |
3407 | break; |
3408 | ||
3409 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3410 | ret = snd_soc_dai_digital_mute(sink, 1, |
3411 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3412 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3413 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3414 | ret = 0; |
c74184ed MB |
3415 | break; |
3416 | ||
3417 | default: | |
3418 | BUG(); | |
3419 | return -EINVAL; | |
3420 | } | |
3421 | ||
9747cec2 MB |
3422 | out: |
3423 | kfree(params); | |
3424 | return ret; | |
c74184ed MB |
3425 | } |
3426 | ||
3427 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3428 | const struct snd_soc_pcm_stream *params, | |
3429 | struct snd_soc_dapm_widget *source, | |
3430 | struct snd_soc_dapm_widget *sink) | |
3431 | { | |
3432 | struct snd_soc_dapm_route routes[2]; | |
3433 | struct snd_soc_dapm_widget template; | |
3434 | struct snd_soc_dapm_widget *w; | |
3435 | size_t len; | |
3436 | char *link_name; | |
3437 | ||
3438 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3439 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3440 | if (!link_name) | |
3441 | return -ENOMEM; | |
3442 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3443 | ||
3444 | memset(&template, 0, sizeof(template)); | |
3445 | template.reg = SND_SOC_NOPM; | |
3446 | template.id = snd_soc_dapm_dai_link; | |
3447 | template.name = link_name; | |
3448 | template.event = snd_soc_dai_link_event; | |
3449 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3450 | SND_SOC_DAPM_PRE_PMD; | |
3451 | ||
30a6a1a4 | 3452 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3453 | |
3454 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3455 | if (!w) { | |
30a6a1a4 | 3456 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3457 | link_name); |
3458 | return -ENOMEM; | |
3459 | } | |
3460 | ||
3461 | w->params = params; | |
3462 | ||
3463 | memset(&routes, 0, sizeof(routes)); | |
3464 | ||
3465 | routes[0].source = source->name; | |
3466 | routes[0].sink = link_name; | |
3467 | routes[1].source = link_name; | |
3468 | routes[1].sink = sink->name; | |
3469 | ||
3470 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3471 | ARRAY_SIZE(routes)); | |
3472 | } | |
3473 | ||
888df395 MB |
3474 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3475 | struct snd_soc_dai *dai) | |
2b97eabc | 3476 | { |
888df395 | 3477 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3478 | struct snd_soc_dapm_widget *w; |
3479 | ||
888df395 MB |
3480 | WARN_ON(dapm->dev != dai->dev); |
3481 | ||
3482 | memset(&template, 0, sizeof(template)); | |
3483 | template.reg = SND_SOC_NOPM; | |
3484 | ||
3485 | if (dai->driver->playback.stream_name) { | |
4616274d | 3486 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3487 | template.name = dai->driver->playback.stream_name; |
3488 | template.sname = dai->driver->playback.stream_name; | |
3489 | ||
30a6a1a4 | 3490 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3491 | template.name); |
3492 | ||
3493 | w = snd_soc_dapm_new_control(dapm, &template); | |
3494 | if (!w) { | |
30a6a1a4 | 3495 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3496 | dai->driver->playback.stream_name); |
3497 | } | |
3498 | ||
3499 | w->priv = dai; | |
3500 | dai->playback_widget = w; | |
3501 | } | |
3502 | ||
3503 | if (dai->driver->capture.stream_name) { | |
4616274d | 3504 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3505 | template.name = dai->driver->capture.stream_name; |
3506 | template.sname = dai->driver->capture.stream_name; | |
3507 | ||
30a6a1a4 | 3508 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3509 | template.name); |
3510 | ||
3511 | w = snd_soc_dapm_new_control(dapm, &template); | |
3512 | if (!w) { | |
30a6a1a4 | 3513 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3514 | dai->driver->capture.stream_name); |
3515 | } | |
3516 | ||
3517 | w->priv = dai; | |
3518 | dai->capture_widget = w; | |
3519 | } | |
3520 | ||
3521 | return 0; | |
3522 | } | |
3523 | ||
3524 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3525 | { | |
3526 | struct snd_soc_dapm_widget *dai_w, *w; | |
3527 | struct snd_soc_dai *dai; | |
888df395 MB |
3528 | |
3529 | /* For each DAI widget... */ | |
3530 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3531 | switch (dai_w->id) { |
3532 | case snd_soc_dapm_dai_in: | |
3533 | case snd_soc_dapm_dai_out: | |
3534 | break; | |
3535 | default: | |
2b97eabc | 3536 | continue; |
4616274d | 3537 | } |
888df395 MB |
3538 | |
3539 | dai = dai_w->priv; | |
3540 | ||
3541 | /* ...find all widgets with the same stream and link them */ | |
3542 | list_for_each_entry(w, &card->widgets, list) { | |
3543 | if (w->dapm != dai_w->dapm) | |
3544 | continue; | |
3545 | ||
4616274d MB |
3546 | switch (w->id) { |
3547 | case snd_soc_dapm_dai_in: | |
3548 | case snd_soc_dapm_dai_out: | |
888df395 | 3549 | continue; |
4616274d MB |
3550 | default: |
3551 | break; | |
3552 | } | |
888df395 | 3553 | |
19c2c5f5 | 3554 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3555 | continue; |
3556 | ||
3557 | if (dai->driver->playback.stream_name && | |
3558 | strstr(w->sname, | |
3559 | dai->driver->playback.stream_name)) { | |
888df395 | 3560 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3561 | dai->playback_widget->name, w->name); |
888df395 | 3562 | |
2553628e LPC |
3563 | snd_soc_dapm_add_path(w->dapm, |
3564 | dai->playback_widget, w, NULL, NULL); | |
888df395 MB |
3565 | } |
3566 | ||
3567 | if (dai->driver->capture.stream_name && | |
3568 | strstr(w->sname, | |
3569 | dai->driver->capture.stream_name)) { | |
888df395 | 3570 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3571 | w->name, dai->capture_widget->name); |
888df395 | 3572 | |
2553628e LPC |
3573 | snd_soc_dapm_add_path(w->dapm, w, |
3574 | dai->capture_widget, NULL, NULL); | |
2b97eabc RP |
3575 | } |
3576 | } | |
3577 | } | |
2b97eabc | 3578 | |
888df395 MB |
3579 | return 0; |
3580 | } | |
64a648c2 | 3581 | |
d9b0951b LG |
3582 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3583 | int event) | |
2b97eabc | 3584 | { |
7bd3a6f3 | 3585 | |
d9b0951b LG |
3586 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3587 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3588 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3589 | |
d9b0951b LG |
3590 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3591 | w_cpu = cpu_dai->playback_widget; | |
3592 | w_codec = codec_dai->playback_widget; | |
3593 | } else { | |
3594 | w_cpu = cpu_dai->capture_widget; | |
3595 | w_codec = codec_dai->capture_widget; | |
3596 | } | |
2b97eabc | 3597 | |
d9b0951b | 3598 | if (w_cpu) { |
fe360685 | 3599 | |
d9b0951b LG |
3600 | dapm_mark_dirty(w_cpu, "stream event"); |
3601 | ||
3602 | switch (event) { | |
3603 | case SND_SOC_DAPM_STREAM_START: | |
3604 | w_cpu->active = 1; | |
3605 | break; | |
3606 | case SND_SOC_DAPM_STREAM_STOP: | |
3607 | w_cpu->active = 0; | |
3608 | break; | |
3609 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3610 | case SND_SOC_DAPM_STREAM_RESUME: | |
3611 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3612 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3613 | break; | |
3614 | } | |
3615 | } | |
3616 | ||
3617 | if (w_codec) { | |
3618 | ||
3619 | dapm_mark_dirty(w_codec, "stream event"); | |
3620 | ||
3621 | switch (event) { | |
3622 | case SND_SOC_DAPM_STREAM_START: | |
3623 | w_codec->active = 1; | |
3624 | break; | |
3625 | case SND_SOC_DAPM_STREAM_STOP: | |
3626 | w_codec->active = 0; | |
3627 | break; | |
3628 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3629 | case SND_SOC_DAPM_STREAM_RESUME: | |
3630 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3631 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3632 | break; | |
3633 | } | |
2b97eabc | 3634 | } |
2b97eabc | 3635 | |
95dd5cd6 | 3636 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3637 | } |
3638 | ||
3639 | /** | |
3640 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3641 | * @rtd: PCM runtime data | |
3642 | * @stream: stream name | |
3643 | * @event: stream event | |
3644 | * | |
3645 | * Sends a stream event to the dapm core. The core then makes any | |
3646 | * necessary widget power changes. | |
3647 | * | |
3648 | * Returns 0 for success else error. | |
3649 | */ | |
d9b0951b LG |
3650 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3651 | int event) | |
ce6120cc | 3652 | { |
a73fb2df | 3653 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3654 | |
3cd04343 | 3655 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3656 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3657 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3658 | } |
2b97eabc RP |
3659 | |
3660 | /** | |
a5302181 | 3661 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3662 | * @dapm: DAPM context |
a5302181 | 3663 | * @pin: pin name |
2b97eabc | 3664 | * |
74b8f955 | 3665 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3666 | * a valid audio route and active audio stream. |
3667 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3668 | * do any widget power switching. | |
2b97eabc | 3669 | */ |
ce6120cc | 3670 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3671 | { |
ce6120cc | 3672 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3673 | } |
3674 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3675 | |
da34183e MB |
3676 | /** |
3677 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3678 | * @dapm: DAPM context |
da34183e MB |
3679 | * @pin: pin name |
3680 | * | |
3681 | * Enables input/output pin regardless of any other state. This is | |
3682 | * intended for use with microphone bias supplies used in microphone | |
3683 | * jack detection. | |
3684 | * | |
3685 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3686 | * do any widget power switching. | |
3687 | */ | |
ce6120cc LG |
3688 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3689 | const char *pin) | |
da34183e | 3690 | { |
91a5fca4 | 3691 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3692 | |
91a5fca4 | 3693 | if (!w) { |
30a6a1a4 | 3694 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3695 | return -EINVAL; |
0d86733c MB |
3696 | } |
3697 | ||
30a6a1a4 | 3698 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3699 | w->connected = 1; |
3700 | w->force = 1; | |
75c1f891 | 3701 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3702 | |
91a5fca4 | 3703 | return 0; |
da34183e MB |
3704 | } |
3705 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3706 | ||
a5302181 LG |
3707 | /** |
3708 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3709 | * @dapm: DAPM context |
a5302181 LG |
3710 | * @pin: pin name |
3711 | * | |
74b8f955 | 3712 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3713 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3714 | * do any widget power switching. | |
3715 | */ | |
ce6120cc LG |
3716 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3717 | const char *pin) | |
a5302181 | 3718 | { |
ce6120cc | 3719 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3720 | } |
a5302181 | 3721 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3722 | |
5817b52a MB |
3723 | /** |
3724 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3725 | * @dapm: DAPM context |
5817b52a MB |
3726 | * @pin: pin name |
3727 | * | |
3728 | * Marks the specified pin as being not connected, disabling it along | |
3729 | * any parent or child widgets. At present this is identical to | |
3730 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3731 | * additional things such as disabling controls which only affect | |
3732 | * paths through the pin. | |
3733 | * | |
3734 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3735 | * do any widget power switching. | |
3736 | */ | |
ce6120cc | 3737 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3738 | { |
ce6120cc | 3739 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3740 | } |
3741 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3742 | ||
eeec12bf | 3743 | /** |
a5302181 | 3744 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3745 | * @dapm: DAPM context |
a5302181 | 3746 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3747 | * |
a5302181 | 3748 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3749 | * |
a5302181 | 3750 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3751 | */ |
ce6120cc LG |
3752 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3753 | const char *pin) | |
eeec12bf | 3754 | { |
91a5fca4 | 3755 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3756 | |
91a5fca4 LPC |
3757 | if (w) |
3758 | return w->connected; | |
a68b38ad | 3759 | |
eeec12bf GG |
3760 | return 0; |
3761 | } | |
a5302181 | 3762 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3763 | |
1547aba9 MB |
3764 | /** |
3765 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3766 | * @dapm: DAPM context |
1547aba9 MB |
3767 | * @pin: audio signal pin endpoint (or start point) |
3768 | * | |
3769 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3770 | * system is disabled a path between two endpoints flagged as ignoring | |
3771 | * suspend will not be disabled. The path must already be enabled via | |
3772 | * normal means at suspend time, it will not be turned on if it was not | |
3773 | * already enabled. | |
3774 | */ | |
ce6120cc LG |
3775 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3776 | const char *pin) | |
1547aba9 | 3777 | { |
91a5fca4 | 3778 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3779 | |
91a5fca4 | 3780 | if (!w) { |
30a6a1a4 | 3781 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3782 | return -EINVAL; |
1547aba9 MB |
3783 | } |
3784 | ||
91a5fca4 LPC |
3785 | w->ignore_suspend = 1; |
3786 | ||
3787 | return 0; | |
1547aba9 MB |
3788 | } |
3789 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3790 | ||
1633281b SW |
3791 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3792 | struct snd_soc_dapm_widget *w) | |
3793 | { | |
3794 | struct snd_soc_dapm_path *p; | |
3795 | ||
3796 | list_for_each_entry(p, &card->paths, list) { | |
3797 | if ((p->source == w) || (p->sink == w)) { | |
3798 | dev_dbg(card->dev, | |
3799 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3800 | p->source->name, p->source->id, p->source->dapm, | |
3801 | p->sink->name, p->sink->id, p->sink->dapm); | |
3802 | ||
3803 | /* Connected to something other than the codec */ | |
3804 | if (p->source->dapm != p->sink->dapm) | |
3805 | return true; | |
3806 | /* | |
3807 | * Loopback connection from codec external pin to | |
3808 | * codec external pin | |
3809 | */ | |
3810 | if (p->sink->id == snd_soc_dapm_input) { | |
3811 | switch (p->source->id) { | |
3812 | case snd_soc_dapm_output: | |
3813 | case snd_soc_dapm_micbias: | |
3814 | return true; | |
3815 | default: | |
3816 | break; | |
3817 | } | |
3818 | } | |
3819 | } | |
3820 | } | |
3821 | ||
3822 | return false; | |
3823 | } | |
3824 | ||
3825 | /** | |
3826 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3827 | * @codec: The codec whose pins should be processed | |
3828 | * | |
3829 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3830 | * which are unused. Pins are used if they are connected externally to the | |
3831 | * codec, whether that be to some other device, or a loop-back connection to | |
3832 | * the codec itself. | |
3833 | */ | |
3834 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3835 | { | |
3836 | struct snd_soc_card *card = codec->card; | |
3837 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3838 | struct snd_soc_dapm_widget *w; | |
3839 | ||
30a6a1a4 | 3840 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3841 | &card->dapm, &codec->dapm); |
3842 | ||
3843 | list_for_each_entry(w, &card->widgets, list) { | |
3844 | if (w->dapm != dapm) | |
3845 | continue; | |
3846 | switch (w->id) { | |
3847 | case snd_soc_dapm_input: | |
3848 | case snd_soc_dapm_output: | |
3849 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3850 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3851 | w->name); |
3852 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3853 | dev_dbg(codec->dev, |
1633281b SW |
3854 | "... Not in map; disabling\n"); |
3855 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3856 | } | |
3857 | break; | |
3858 | default: | |
3859 | break; | |
3860 | } | |
3861 | } | |
3862 | } | |
3863 | ||
2b97eabc RP |
3864 | /** |
3865 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3866 | * @dapm: DAPM context |
2b97eabc RP |
3867 | * |
3868 | * Free all dapm widgets and resources. | |
3869 | */ | |
ce6120cc | 3870 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3871 | { |
ce6120cc | 3872 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3873 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3874 | dapm_free_widgets(dapm); |
7be31be8 | 3875 | list_del(&dapm->list); |
2b97eabc RP |
3876 | } |
3877 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3878 | ||
ce6120cc | 3879 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3880 | { |
01005a72 | 3881 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3882 | struct snd_soc_dapm_widget *w; |
3883 | LIST_HEAD(down_list); | |
3884 | int powerdown = 0; | |
3885 | ||
01005a72 LG |
3886 | mutex_lock(&card->dapm_mutex); |
3887 | ||
97c866de JN |
3888 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3889 | if (w->dapm != dapm) | |
3890 | continue; | |
51737470 | 3891 | if (w->power) { |
828a842f | 3892 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3893 | w->power = 0; |
51737470 MB |
3894 | powerdown = 1; |
3895 | } | |
3896 | } | |
3897 | ||
3898 | /* If there were no widgets to power down we're already in | |
3899 | * standby. | |
3900 | */ | |
3901 | if (powerdown) { | |
7679e42e MB |
3902 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3903 | snd_soc_dapm_set_bias_level(dapm, | |
3904 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3905 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3906 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3907 | snd_soc_dapm_set_bias_level(dapm, | |
3908 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3909 | } |
01005a72 LG |
3910 | |
3911 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3912 | } |
3913 | ||
3914 | /* | |
3915 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3916 | */ | |
3917 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3918 | { | |
3919 | struct snd_soc_codec *codec; | |
3920 | ||
445632ad | 3921 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3922 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3923 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3924 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3925 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3926 | } |
51737470 MB |
3927 | } |
3928 | ||
2b97eabc | 3929 | /* Module information */ |
d331124d | 3930 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3931 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3932 | MODULE_LICENSE("GPL"); |