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 | ||
2daabd78 LPC |
232 | data->value = template.on_val; |
233 | ||
57295073 LPC |
234 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
235 | &template); | |
236 | if (!data->widget) { | |
237 | kfree(data); | |
238 | return -ENOMEM; | |
239 | } | |
240 | } | |
241 | break; | |
242 | default: | |
243 | break; | |
244 | } | |
245 | ||
e84357f7 LPC |
246 | kcontrol->private_data = data; |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
252 | { | |
253 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
57295073 | 254 | kfree(data->widget); |
2c75bdf3 | 255 | kfree(data->wlist); |
e84357f7 LPC |
256 | kfree(data); |
257 | } | |
258 | ||
259 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
260 | const struct snd_kcontrol *kcontrol) | |
261 | { | |
262 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
263 | ||
2c75bdf3 | 264 | return data->wlist; |
e84357f7 LPC |
265 | } |
266 | ||
267 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
268 | struct snd_soc_dapm_widget *widget) | |
269 | { | |
270 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
271 | struct snd_soc_dapm_widget_list *new_wlist; |
272 | unsigned int n; | |
e84357f7 | 273 | |
2c75bdf3 LPC |
274 | if (data->wlist) |
275 | n = data->wlist->num_widgets + 1; | |
276 | else | |
277 | n = 1; | |
278 | ||
279 | new_wlist = krealloc(data->wlist, | |
280 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
281 | if (!new_wlist) | |
e84357f7 LPC |
282 | return -ENOMEM; |
283 | ||
2c75bdf3 LPC |
284 | new_wlist->widgets[n - 1] = widget; |
285 | new_wlist->num_widgets = n; | |
e84357f7 | 286 | |
2c75bdf3 | 287 | data->wlist = new_wlist; |
e84357f7 LPC |
288 | |
289 | return 0; | |
290 | } | |
291 | ||
5106b92f LPC |
292 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
293 | struct snd_soc_dapm_path *path) | |
294 | { | |
295 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
296 | ||
297 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
298 | |
299 | if (data->widget) { | |
300 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
301 | path->source, NULL, NULL); | |
302 | } | |
303 | } | |
304 | ||
305 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
306 | { | |
307 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
308 | ||
309 | if (!data->widget) | |
310 | return true; | |
311 | ||
312 | return data->widget->power; | |
5106b92f LPC |
313 | } |
314 | ||
315 | static struct list_head *dapm_kcontrol_get_path_list( | |
316 | const struct snd_kcontrol *kcontrol) | |
317 | { | |
318 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
319 | ||
320 | return &data->paths; | |
321 | } | |
322 | ||
323 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
324 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
325 | list_kcontrol) | |
326 | ||
cf7c1de2 LPC |
327 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
328 | { | |
329 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
330 | ||
331 | return data->value; | |
332 | } | |
333 | ||
334 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
335 | unsigned int value) | |
336 | { | |
337 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
338 | ||
339 | if (data->value == value) | |
340 | return false; | |
341 | ||
57295073 LPC |
342 | if (data->widget) |
343 | data->widget->on_val = value; | |
344 | ||
cf7c1de2 LPC |
345 | data->value = value; |
346 | ||
347 | return true; | |
348 | } | |
349 | ||
eee5d7f9 LPC |
350 | /** |
351 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
352 | * @kcontrol: The kcontrol | |
353 | */ | |
354 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
355 | { | |
e84357f7 | 356 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
357 | } |
358 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
359 | ||
6c120e19 LG |
360 | static void dapm_reset(struct snd_soc_card *card) |
361 | { | |
362 | struct snd_soc_dapm_widget *w; | |
363 | ||
364 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
365 | ||
366 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 367 | w->new_power = w->power; |
6c120e19 LG |
368 | w->power_checked = false; |
369 | w->inputs = -1; | |
370 | w->outputs = -1; | |
371 | } | |
372 | } | |
373 | ||
0445bdf4 LG |
374 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
375 | { | |
376 | if (w->codec) | |
377 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
378 | else if (w->platform) |
379 | return snd_soc_platform_read(w->platform, reg); | |
380 | ||
30a6a1a4 | 381 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 382 | return -1; |
0445bdf4 LG |
383 | } |
384 | ||
385 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
386 | { | |
387 | if (w->codec) | |
388 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
389 | else if (w->platform) |
390 | return snd_soc_platform_write(w->platform, reg, val); | |
391 | ||
30a6a1a4 | 392 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 393 | return -1; |
0445bdf4 LG |
394 | } |
395 | ||
49575fb5 LG |
396 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
397 | { | |
e06ab3b8 | 398 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
399 | mutex_lock(&w->codec->mutex); |
400 | else if (w->platform) | |
401 | mutex_lock(&w->platform->mutex); | |
402 | } | |
403 | ||
404 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
405 | { | |
e06ab3b8 | 406 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
407 | mutex_unlock(&w->codec->mutex); |
408 | else if (w->platform) | |
409 | mutex_unlock(&w->platform->mutex); | |
410 | } | |
411 | ||
412 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
413 | unsigned short reg, unsigned int mask, unsigned int value) |
414 | { | |
8a713da8 | 415 | bool change; |
0445bdf4 LG |
416 | unsigned int old, new; |
417 | int ret; | |
418 | ||
8a713da8 MB |
419 | if (w->codec && w->codec->using_regmap) { |
420 | ret = regmap_update_bits_check(w->codec->control_data, | |
421 | reg, mask, value, &change); | |
422 | if (ret != 0) | |
423 | return ret; | |
424 | } else { | |
49575fb5 | 425 | soc_widget_lock(w); |
8a713da8 | 426 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
427 | if (ret < 0) { |
428 | soc_widget_unlock(w); | |
0445bdf4 | 429 | return ret; |
49575fb5 | 430 | } |
8a713da8 MB |
431 | |
432 | old = ret; | |
433 | new = (old & ~mask) | (value & mask); | |
434 | change = old != new; | |
435 | if (change) { | |
436 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
437 | if (ret < 0) { |
438 | soc_widget_unlock(w); | |
8a713da8 | 439 | return ret; |
49575fb5 | 440 | } |
8a713da8 | 441 | } |
49575fb5 | 442 | soc_widget_unlock(w); |
0445bdf4 LG |
443 | } |
444 | ||
445 | return change; | |
446 | } | |
447 | ||
452c5eaa MB |
448 | /** |
449 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 450 | * @dapm: DAPM context |
452c5eaa MB |
451 | * @level: level to configure |
452 | * | |
453 | * Configure the bias (power) levels for the SoC audio device. | |
454 | * | |
455 | * Returns 0 for success else error. | |
456 | */ | |
ed5a4c47 | 457 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 458 | enum snd_soc_bias_level level) |
452c5eaa | 459 | { |
ed5a4c47 | 460 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
461 | int ret = 0; |
462 | ||
84e90930 MB |
463 | trace_snd_soc_bias_level_start(card, level); |
464 | ||
f0fba2ad | 465 | if (card && card->set_bias_level) |
d4c6005f | 466 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
467 | if (ret != 0) |
468 | goto out; | |
469 | ||
cc4c670a MB |
470 | if (dapm->codec) { |
471 | if (dapm->codec->driver->set_bias_level) | |
472 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
473 | level); | |
d8c3bb91 MB |
474 | else |
475 | dapm->bias_level = level; | |
4e872a46 | 476 | } else if (!card || dapm != &card->dapm) { |
4123128e | 477 | dapm->bias_level = level; |
4e872a46 | 478 | } |
4123128e | 479 | |
171ec6b0 MB |
480 | if (ret != 0) |
481 | goto out; | |
482 | ||
483 | if (card && card->set_bias_level_post) | |
d4c6005f | 484 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 485 | out: |
84e90930 MB |
486 | trace_snd_soc_bias_level_done(card, level); |
487 | ||
452c5eaa MB |
488 | return ret; |
489 | } | |
490 | ||
2b97eabc RP |
491 | /* set up initial codec paths */ |
492 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
493 | struct snd_soc_dapm_path *p, int i) | |
494 | { | |
495 | switch (w->id) { | |
496 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
497 | case snd_soc_dapm_mixer: |
498 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 499 | int val; |
4eaa9819 | 500 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 501 | w->kcontrol_news[i].private_value; |
249ce138 | 502 | int reg = mc->reg; |
815ecf8d | 503 | unsigned int shift = mc->shift; |
4eaa9819 | 504 | int max = mc->max; |
815ecf8d JS |
505 | unsigned int mask = (1 << fls(max)) - 1; |
506 | unsigned int invert = mc->invert; | |
2b97eabc | 507 | |
249ce138 LPC |
508 | if (reg != SND_SOC_NOPM) { |
509 | val = soc_widget_read(w, reg); | |
510 | val = (val >> shift) & mask; | |
511 | if (invert) | |
512 | val = max - val; | |
513 | p->connect = !!val; | |
514 | } else { | |
515 | p->connect = 0; | |
516 | } | |
2b97eabc | 517 | |
2b97eabc RP |
518 | } |
519 | break; | |
520 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
521 | struct soc_enum *e = (struct soc_enum *) |
522 | w->kcontrol_news[i].private_value; | |
86767b7d | 523 | int val, item; |
2b97eabc | 524 | |
0445bdf4 | 525 | val = soc_widget_read(w, e->reg); |
86767b7d | 526 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 527 | |
58fee775 LPC |
528 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
529 | p->connect = 1; | |
530 | else | |
531 | p->connect = 0; | |
2b97eabc RP |
532 | } |
533 | break; | |
24ff33ac | 534 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
535 | struct soc_enum *e = (struct soc_enum *) |
536 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
537 | |
538 | p->connect = 0; | |
539 | /* since a virtual mux has no backing registers to | |
540 | * decide which path to connect, it will try to match | |
541 | * with the first enumeration. This is to ensure | |
542 | * that the default mux choice (the first) will be | |
543 | * correctly powered up during initialization. | |
544 | */ | |
545 | if (!strcmp(p->name, e->texts[0])) | |
546 | p->connect = 1; | |
547 | } | |
548 | break; | |
2e72f8e3 | 549 | case snd_soc_dapm_value_mux: { |
74155556 | 550 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 551 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
552 | int val, item; |
553 | ||
0445bdf4 | 554 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
555 | val = (val >> e->shift_l) & e->mask; |
556 | for (item = 0; item < e->max; item++) { | |
557 | if (val == e->values[item]) | |
558 | break; | |
559 | } | |
560 | ||
58fee775 LPC |
561 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
562 | p->connect = 1; | |
563 | else | |
564 | p->connect = 0; | |
2e72f8e3 PU |
565 | } |
566 | break; | |
56563100 | 567 | /* does not affect routing - always connected */ |
2b97eabc | 568 | case snd_soc_dapm_pga: |
d88429a6 | 569 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
570 | case snd_soc_dapm_output: |
571 | case snd_soc_dapm_adc: | |
572 | case snd_soc_dapm_input: | |
1ab97c8c | 573 | case snd_soc_dapm_siggen: |
2b97eabc RP |
574 | case snd_soc_dapm_dac: |
575 | case snd_soc_dapm_micbias: | |
576 | case snd_soc_dapm_vmid: | |
246d0a17 | 577 | case snd_soc_dapm_supply: |
62ea874a | 578 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 579 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
580 | case snd_soc_dapm_aif_in: |
581 | case snd_soc_dapm_aif_out: | |
4616274d MB |
582 | case snd_soc_dapm_dai_in: |
583 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
584 | case snd_soc_dapm_hp: |
585 | case snd_soc_dapm_mic: | |
586 | case snd_soc_dapm_spk: | |
587 | case snd_soc_dapm_line: | |
c74184ed | 588 | case snd_soc_dapm_dai_link: |
57295073 | 589 | case snd_soc_dapm_kcontrol: |
56563100 MB |
590 | p->connect = 1; |
591 | break; | |
592 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
593 | case snd_soc_dapm_pre: |
594 | case snd_soc_dapm_post: | |
595 | p->connect = 0; | |
596 | break; | |
597 | } | |
598 | } | |
599 | ||
74b8f955 | 600 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 601 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
602 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
603 | struct snd_soc_dapm_path *path, const char *control_name, | |
604 | const struct snd_kcontrol_new *kcontrol) | |
605 | { | |
606 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
607 | int i; | |
608 | ||
f8ba0b7b | 609 | for (i = 0; i < e->max; i++) { |
2b97eabc | 610 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 611 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
612 | list_add(&path->list_sink, &dest->sources); |
613 | list_add(&path->list_source, &src->sinks); | |
614 | path->name = (char*)e->texts[i]; | |
615 | dapm_set_path_status(dest, path, 0); | |
616 | return 0; | |
617 | } | |
618 | } | |
619 | ||
620 | return -ENODEV; | |
621 | } | |
622 | ||
74b8f955 | 623 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 624 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
625 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
626 | struct snd_soc_dapm_path *path, const char *control_name) | |
627 | { | |
628 | int i; | |
629 | ||
630 | /* search for mixer kcontrol */ | |
631 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 632 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 633 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
634 | list_add(&path->list_sink, &dest->sources); |
635 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 636 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
637 | dapm_set_path_status(dest, path, i); |
638 | return 0; | |
639 | } | |
640 | } | |
641 | return -ENODEV; | |
642 | } | |
643 | ||
af46800b | 644 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 645 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
646 | const struct snd_kcontrol_new *kcontrol_new, |
647 | struct snd_kcontrol **kcontrol) | |
648 | { | |
649 | struct snd_soc_dapm_widget *w; | |
650 | int i; | |
651 | ||
652 | *kcontrol = NULL; | |
653 | ||
654 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
655 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
656 | continue; | |
af46800b SW |
657 | for (i = 0; i < w->num_kcontrols; i++) { |
658 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
659 | if (w->kcontrols) | |
660 | *kcontrol = w->kcontrols[i]; | |
661 | return 1; | |
662 | } | |
663 | } | |
664 | } | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
85762e71 SW |
669 | /* |
670 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
671 | * create it. Either way, add the widget into the control's widget list | |
672 | */ | |
673 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 674 | int kci) |
2b97eabc | 675 | { |
4b80b8c2 | 676 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 677 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 678 | const char *prefix; |
85762e71 SW |
679 | size_t prefix_len; |
680 | int shared; | |
681 | struct snd_kcontrol *kcontrol; | |
85762e71 | 682 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
683 | char *long_name; |
684 | const char *name; | |
685 | int ret; | |
efb7ac3f MB |
686 | |
687 | if (dapm->codec) | |
688 | prefix = dapm->codec->name_prefix; | |
689 | else | |
690 | prefix = NULL; | |
2b97eabc | 691 | |
3e5ff4df MB |
692 | if (prefix) |
693 | prefix_len = strlen(prefix) + 1; | |
694 | else | |
695 | prefix_len = 0; | |
696 | ||
85762e71 SW |
697 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
698 | &kcontrol); | |
2b97eabc | 699 | |
85762e71 SW |
700 | if (!kcontrol) { |
701 | if (shared) { | |
702 | wname_in_long_name = false; | |
703 | kcname_in_long_name = true; | |
704 | } else { | |
705 | switch (w->id) { | |
706 | case snd_soc_dapm_switch: | |
707 | case snd_soc_dapm_mixer: | |
708 | wname_in_long_name = true; | |
709 | kcname_in_long_name = true; | |
710 | break; | |
711 | case snd_soc_dapm_mixer_named_ctl: | |
712 | wname_in_long_name = false; | |
713 | kcname_in_long_name = true; | |
714 | break; | |
715 | case snd_soc_dapm_mux: | |
716 | case snd_soc_dapm_virt_mux: | |
717 | case snd_soc_dapm_value_mux: | |
718 | wname_in_long_name = true; | |
719 | kcname_in_long_name = false; | |
720 | break; | |
721 | default: | |
85762e71 | 722 | return -EINVAL; |
82cd8764 | 723 | } |
85762e71 SW |
724 | } |
725 | ||
726 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
727 | /* |
728 | * The control will get a prefix from the control | |
729 | * creation process but we're also using the same | |
730 | * prefix for widgets so cut the prefix off the | |
731 | * front of the widget name. | |
ca9c1aae | 732 | */ |
2b581074 | 733 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
734 | w->name + prefix_len, |
735 | w->kcontrol_news[kci].name); | |
e84357f7 | 736 | if (long_name == NULL) |
2b581074 | 737 | return -ENOMEM; |
85762e71 SW |
738 | |
739 | name = long_name; | |
740 | } else if (wname_in_long_name) { | |
741 | long_name = NULL; | |
742 | name = w->name + prefix_len; | |
743 | } else { | |
744 | long_name = NULL; | |
745 | name = w->kcontrol_news[kci].name; | |
746 | } | |
ca9c1aae | 747 | |
e84357f7 | 748 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 749 | prefix); |
656ca9d3 | 750 | kfree(long_name); |
9356e9d5 LPC |
751 | if (!kcontrol) |
752 | return -ENOMEM; | |
753 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
754 | |
755 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
756 | if (ret) { | |
757 | snd_ctl_free_one(kcontrol); | |
758 | return ret; | |
759 | } | |
760 | ||
85762e71 SW |
761 | ret = snd_ctl_add(card, kcontrol); |
762 | if (ret < 0) { | |
763 | dev_err(dapm->dev, | |
764 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
765 | w->name, name, ret); | |
85762e71 SW |
766 | return ret; |
767 | } | |
85762e71 | 768 | } |
2b97eabc | 769 | |
2c75bdf3 LPC |
770 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
771 | if (ret) | |
772 | return ret; | |
773 | ||
85762e71 | 774 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 775 | |
85762e71 SW |
776 | return 0; |
777 | } | |
219b93f5 | 778 | |
85762e71 SW |
779 | /* create new dapm mixer control */ |
780 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
781 | { | |
782 | int i, ret; | |
783 | struct snd_soc_dapm_path *path; | |
784 | ||
785 | /* add kcontrol */ | |
786 | for (i = 0; i < w->num_kcontrols; i++) { | |
787 | /* match name */ | |
788 | list_for_each_entry(path, &w->sources, list_sink) { | |
789 | /* mixer/mux paths name must match control name */ | |
790 | if (path->name != (char *)w->kcontrol_news[i].name) | |
791 | continue; | |
792 | ||
793 | if (w->kcontrols[i]) { | |
5106b92f | 794 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 795 | continue; |
2b97eabc | 796 | } |
85762e71 | 797 | |
946d92a1 | 798 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
799 | if (ret < 0) |
800 | return ret; | |
946d92a1 MB |
801 | |
802 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
803 | } |
804 | } | |
85762e71 SW |
805 | |
806 | return 0; | |
2b97eabc RP |
807 | } |
808 | ||
809 | /* create new dapm mux control */ | |
4b80b8c2 | 810 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 811 | { |
4b80b8c2 | 812 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 813 | struct snd_soc_dapm_path *path; |
af46800b | 814 | int ret; |
2b97eabc | 815 | |
af46800b SW |
816 | if (w->num_kcontrols != 1) { |
817 | dev_err(dapm->dev, | |
30a6a1a4 | 818 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 819 | w->name); |
2b97eabc RP |
820 | return -EINVAL; |
821 | } | |
822 | ||
fe581391 | 823 | if (list_empty(&w->sources)) { |
85762e71 SW |
824 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
825 | return -EINVAL; | |
af46800b | 826 | } |
ce6120cc | 827 | |
946d92a1 | 828 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
829 | if (ret < 0) |
830 | return ret; | |
fad59888 | 831 | |
2b97eabc | 832 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 833 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 834 | |
af46800b | 835 | return 0; |
2b97eabc RP |
836 | } |
837 | ||
838 | /* create new dapm volume control */ | |
4b80b8c2 | 839 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 840 | { |
a6c65736 | 841 | if (w->num_kcontrols) |
f7d41ae8 | 842 | dev_err(w->dapm->dev, |
30a6a1a4 | 843 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 844 | |
a6c65736 | 845 | return 0; |
2b97eabc RP |
846 | } |
847 | ||
848 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
849 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
850 | struct list_head *sink) | |
2b97eabc RP |
851 | { |
852 | struct snd_soc_dapm_path *p; | |
853 | ||
1059ecfa RT |
854 | list_for_each_entry(p, sink, list_source) { |
855 | if (p->walked) { | |
856 | p->walked = 0; | |
857 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
858 | } | |
859 | } | |
2b97eabc RP |
860 | } |
861 | ||
1059ecfa RT |
862 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
863 | struct list_head *source) | |
2b97eabc RP |
864 | { |
865 | struct snd_soc_dapm_path *p; | |
866 | ||
1059ecfa RT |
867 | list_for_each_entry(p, source, list_sink) { |
868 | if (p->walked) { | |
869 | p->walked = 0; | |
870 | dapm_clear_walk_input(dapm, &p->source->sources); | |
871 | } | |
872 | } | |
2b97eabc RP |
873 | } |
874 | ||
1059ecfa | 875 | |
9949788b MB |
876 | /* We implement power down on suspend by checking the power state of |
877 | * the ALSA card - when we are suspending the ALSA state for the card | |
878 | * is set to D3. | |
879 | */ | |
880 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
881 | { | |
12ea2c78 | 882 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 883 | |
f0fba2ad | 884 | switch (level) { |
9949788b MB |
885 | case SNDRV_CTL_POWER_D3hot: |
886 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 887 | if (widget->ignore_suspend) |
30a6a1a4 | 888 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 889 | widget->name); |
1547aba9 | 890 | return widget->ignore_suspend; |
9949788b MB |
891 | default: |
892 | return 1; | |
893 | } | |
894 | } | |
895 | ||
ec2e3031 LG |
896 | /* add widget to list if it's not already in the list */ |
897 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
898 | struct snd_soc_dapm_widget *w) | |
899 | { | |
900 | struct snd_soc_dapm_widget_list *wlist; | |
901 | int wlistsize, wlistentries, i; | |
902 | ||
903 | if (*list == NULL) | |
904 | return -EINVAL; | |
905 | ||
906 | wlist = *list; | |
907 | ||
908 | /* is this widget already in the list */ | |
909 | for (i = 0; i < wlist->num_widgets; i++) { | |
910 | if (wlist->widgets[i] == w) | |
911 | return 0; | |
912 | } | |
913 | ||
914 | /* allocate some new space */ | |
915 | wlistentries = wlist->num_widgets + 1; | |
916 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
917 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
918 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
919 | if (*list == NULL) { | |
30a6a1a4 | 920 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
921 | w->name); |
922 | return -ENOMEM; | |
923 | } | |
924 | wlist = *list; | |
925 | ||
926 | /* insert the widget */ | |
30a6a1a4 | 927 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
928 | w->name, wlist->num_widgets); |
929 | ||
930 | wlist->widgets[wlist->num_widgets] = w; | |
931 | wlist->num_widgets++; | |
932 | return 1; | |
933 | } | |
934 | ||
2b97eabc RP |
935 | /* |
936 | * Recursively check for a completed path to an active or physically connected | |
937 | * output widget. Returns number of complete paths. | |
938 | */ | |
ec2e3031 LG |
939 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
940 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
941 | { |
942 | struct snd_soc_dapm_path *path; | |
943 | int con = 0; | |
944 | ||
024dc078 MB |
945 | if (widget->outputs >= 0) |
946 | return widget->outputs; | |
947 | ||
de02d078 MB |
948 | DAPM_UPDATE_STAT(widget, path_checks); |
949 | ||
62ea874a MB |
950 | switch (widget->id) { |
951 | case snd_soc_dapm_supply: | |
952 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 953 | case snd_soc_dapm_clock_supply: |
57295073 | 954 | case snd_soc_dapm_kcontrol: |
246d0a17 | 955 | return 0; |
62ea874a MB |
956 | default: |
957 | break; | |
958 | } | |
246d0a17 | 959 | |
010ff262 MB |
960 | switch (widget->id) { |
961 | case snd_soc_dapm_adc: | |
962 | case snd_soc_dapm_aif_out: | |
4616274d | 963 | case snd_soc_dapm_dai_out: |
024dc078 MB |
964 | if (widget->active) { |
965 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
966 | return widget->outputs; | |
967 | } | |
010ff262 MB |
968 | default: |
969 | break; | |
970 | } | |
2b97eabc RP |
971 | |
972 | if (widget->connected) { | |
973 | /* connected pin ? */ | |
024dc078 MB |
974 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
975 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
976 | return widget->outputs; | |
977 | } | |
2b97eabc RP |
978 | |
979 | /* connected jack or spk ? */ | |
024dc078 MB |
980 | if (widget->id == snd_soc_dapm_hp || |
981 | widget->id == snd_soc_dapm_spk || | |
982 | (widget->id == snd_soc_dapm_line && | |
983 | !list_empty(&widget->sources))) { | |
984 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
985 | return widget->outputs; | |
986 | } | |
2b97eabc RP |
987 | } |
988 | ||
989 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
990 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
991 | ||
bf3a9e13 MB |
992 | if (path->weak) |
993 | continue; | |
994 | ||
8af294b4 MB |
995 | if (path->walking) |
996 | return 1; | |
997 | ||
2b97eabc RP |
998 | if (path->walked) |
999 | continue; | |
1000 | ||
ec2e3031 LG |
1001 | trace_snd_soc_dapm_output_path(widget, path); |
1002 | ||
2b97eabc RP |
1003 | if (path->sink && path->connect) { |
1004 | path->walked = 1; | |
8af294b4 | 1005 | path->walking = 1; |
ec2e3031 LG |
1006 | |
1007 | /* do we need to add this widget to the list ? */ | |
1008 | if (list) { | |
1009 | int err; | |
1010 | err = dapm_list_add_widget(list, path->sink); | |
1011 | if (err < 0) { | |
30a6a1a4 LG |
1012 | dev_err(widget->dapm->dev, |
1013 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1014 | widget->name); |
8af294b4 | 1015 | path->walking = 0; |
ec2e3031 LG |
1016 | return con; |
1017 | } | |
1018 | } | |
1019 | ||
1020 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1021 | |
1022 | path->walking = 0; | |
2b97eabc RP |
1023 | } |
1024 | } | |
1025 | ||
024dc078 MB |
1026 | widget->outputs = con; |
1027 | ||
2b97eabc RP |
1028 | return con; |
1029 | } | |
1030 | ||
1031 | /* | |
1032 | * Recursively check for a completed path to an active or physically connected | |
1033 | * input widget. Returns number of complete paths. | |
1034 | */ | |
ec2e3031 LG |
1035 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1036 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1037 | { |
1038 | struct snd_soc_dapm_path *path; | |
1039 | int con = 0; | |
1040 | ||
024dc078 MB |
1041 | if (widget->inputs >= 0) |
1042 | return widget->inputs; | |
1043 | ||
de02d078 MB |
1044 | DAPM_UPDATE_STAT(widget, path_checks); |
1045 | ||
62ea874a MB |
1046 | switch (widget->id) { |
1047 | case snd_soc_dapm_supply: | |
1048 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 1049 | case snd_soc_dapm_clock_supply: |
57295073 | 1050 | case snd_soc_dapm_kcontrol: |
246d0a17 | 1051 | return 0; |
62ea874a MB |
1052 | default: |
1053 | break; | |
1054 | } | |
246d0a17 | 1055 | |
2b97eabc | 1056 | /* active stream ? */ |
010ff262 MB |
1057 | switch (widget->id) { |
1058 | case snd_soc_dapm_dac: | |
1059 | case snd_soc_dapm_aif_in: | |
4616274d | 1060 | case snd_soc_dapm_dai_in: |
024dc078 MB |
1061 | if (widget->active) { |
1062 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1063 | return widget->inputs; | |
1064 | } | |
010ff262 MB |
1065 | default: |
1066 | break; | |
1067 | } | |
2b97eabc RP |
1068 | |
1069 | if (widget->connected) { | |
1070 | /* connected pin ? */ | |
024dc078 MB |
1071 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
1072 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1073 | return widget->inputs; | |
1074 | } | |
2b97eabc RP |
1075 | |
1076 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
1077 | if (widget->id == snd_soc_dapm_vmid) { |
1078 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1079 | return widget->inputs; | |
1080 | } | |
2b97eabc RP |
1081 | |
1082 | /* connected jack ? */ | |
eaeae5d9 | 1083 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1084 | (widget->id == snd_soc_dapm_line && |
1085 | !list_empty(&widget->sinks))) { | |
1086 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1087 | return widget->inputs; | |
1088 | } | |
1089 | ||
1ab97c8c MB |
1090 | /* signal generator */ |
1091 | if (widget->id == snd_soc_dapm_siggen) { | |
1092 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1093 | return widget->inputs; | |
1094 | } | |
2b97eabc RP |
1095 | } |
1096 | ||
1097 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1098 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1099 | ||
bf3a9e13 MB |
1100 | if (path->weak) |
1101 | continue; | |
1102 | ||
8af294b4 MB |
1103 | if (path->walking) |
1104 | return 1; | |
1105 | ||
2b97eabc RP |
1106 | if (path->walked) |
1107 | continue; | |
1108 | ||
ec2e3031 LG |
1109 | trace_snd_soc_dapm_input_path(widget, path); |
1110 | ||
2b97eabc RP |
1111 | if (path->source && path->connect) { |
1112 | path->walked = 1; | |
8af294b4 | 1113 | path->walking = 1; |
ec2e3031 LG |
1114 | |
1115 | /* do we need to add this widget to the list ? */ | |
1116 | if (list) { | |
1117 | int err; | |
90c6ce0d | 1118 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1119 | if (err < 0) { |
30a6a1a4 LG |
1120 | dev_err(widget->dapm->dev, |
1121 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1122 | widget->name); |
8af294b4 | 1123 | path->walking = 0; |
ec2e3031 LG |
1124 | return con; |
1125 | } | |
1126 | } | |
1127 | ||
1128 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1129 | |
1130 | path->walking = 0; | |
2b97eabc RP |
1131 | } |
1132 | } | |
1133 | ||
024dc078 MB |
1134 | widget->inputs = con; |
1135 | ||
2b97eabc RP |
1136 | return con; |
1137 | } | |
1138 | ||
ec2e3031 LG |
1139 | /** |
1140 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1141 | * @dai: the soc DAI. | |
1142 | * @stream: stream direction. | |
1143 | * @list: list of active widgets for this stream. | |
1144 | * | |
1145 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1146 | * the initial stream specified by name. This takes into account | |
1147 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1148 | * | |
1149 | * Returns the number of valid paths or negative error. | |
1150 | */ | |
1151 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1152 | struct snd_soc_dapm_widget_list **list) | |
1153 | { | |
1154 | struct snd_soc_card *card = dai->card; | |
1155 | int paths; | |
1156 | ||
1157 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1158 | dapm_reset(card); | |
1159 | ||
1059ecfa | 1160 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1161 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1162 | dapm_clear_walk_output(&card->dapm, |
1163 | &dai->playback_widget->sinks); | |
1164 | } else { | |
d298caae | 1165 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1166 | dapm_clear_walk_input(&card->dapm, |
1167 | &dai->capture_widget->sources); | |
1168 | } | |
ec2e3031 LG |
1169 | |
1170 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1171 | mutex_unlock(&card->dapm_mutex); |
1172 | ||
1173 | return paths; | |
1174 | } | |
1175 | ||
e2be2ccf JN |
1176 | /* |
1177 | * Handler for generic register modifier widget. | |
1178 | */ | |
1179 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1180 | struct snd_kcontrol *kcontrol, int event) | |
1181 | { | |
1182 | unsigned int val; | |
1183 | ||
1184 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1185 | val = w->on_val; | |
1186 | else | |
1187 | val = w->off_val; | |
1188 | ||
49575fb5 | 1189 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1190 | w->mask << w->shift, val << w->shift); |
1191 | ||
1192 | return 0; | |
1193 | } | |
11589418 | 1194 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1195 | |
62ea874a MB |
1196 | /* |
1197 | * Handler for regulator supply widget. | |
1198 | */ | |
1199 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1200 | struct snd_kcontrol *kcontrol, int event) | |
1201 | { | |
c05b84d1 MB |
1202 | int ret; |
1203 | ||
1204 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
de9ba98b | 1205 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1206 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1207 | if (ret != 0) |
1208 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1209 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1210 | w->name, ret); |
1211 | } | |
1212 | ||
a3cc056b | 1213 | return regulator_enable(w->regulator); |
c05b84d1 | 1214 | } else { |
de9ba98b | 1215 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1216 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1217 | if (ret != 0) |
1218 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1219 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1220 | w->name, ret); |
1221 | } | |
1222 | ||
a3cc056b | 1223 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1224 | } |
62ea874a MB |
1225 | } |
1226 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1227 | ||
d7e7eb91 OL |
1228 | /* |
1229 | * Handler for clock supply widget. | |
1230 | */ | |
1231 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1232 | struct snd_kcontrol *kcontrol, int event) | |
1233 | { | |
1234 | if (!w->clk) | |
1235 | return -EIO; | |
1236 | ||
ec02995a | 1237 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1238 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1239 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1240 | } else { |
37c1b927 | 1241 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1242 | return 0; |
1243 | } | |
ec02995a | 1244 | #endif |
98b3cf12 | 1245 | return 0; |
d7e7eb91 OL |
1246 | } |
1247 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1248 | ||
d805002b MB |
1249 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1250 | { | |
9b8a83b2 MB |
1251 | if (w->power_checked) |
1252 | return w->new_power; | |
1253 | ||
d805002b | 1254 | if (w->force) |
9b8a83b2 | 1255 | w->new_power = 1; |
d805002b | 1256 | else |
9b8a83b2 MB |
1257 | w->new_power = w->power_check(w); |
1258 | ||
1259 | w->power_checked = true; | |
1260 | ||
1261 | return w->new_power; | |
d805002b MB |
1262 | } |
1263 | ||
cd0f2d47 MB |
1264 | /* Generic check to see if a widget should be powered. |
1265 | */ | |
1266 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1267 | { | |
1268 | int in, out; | |
1269 | ||
de02d078 MB |
1270 | DAPM_UPDATE_STAT(w, power_checks); |
1271 | ||
ec2e3031 | 1272 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1273 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1274 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1275 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1276 | return out != 0 && in != 0; |
1277 | } | |
1278 | ||
6ea31b9f MB |
1279 | /* Check to see if an ADC has power */ |
1280 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1281 | { | |
1282 | int in; | |
1283 | ||
de02d078 MB |
1284 | DAPM_UPDATE_STAT(w, power_checks); |
1285 | ||
6ea31b9f | 1286 | if (w->active) { |
ec2e3031 | 1287 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1288 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1289 | return in != 0; |
1290 | } else { | |
1291 | return dapm_generic_check_power(w); | |
1292 | } | |
1293 | } | |
1294 | ||
1295 | /* Check to see if a DAC has power */ | |
1296 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1297 | { | |
1298 | int out; | |
1299 | ||
de02d078 MB |
1300 | DAPM_UPDATE_STAT(w, power_checks); |
1301 | ||
6ea31b9f | 1302 | if (w->active) { |
ec2e3031 | 1303 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1304 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1305 | return out != 0; |
1306 | } else { | |
1307 | return dapm_generic_check_power(w); | |
1308 | } | |
1309 | } | |
1310 | ||
246d0a17 MB |
1311 | /* Check to see if a power supply is needed */ |
1312 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1313 | { | |
1314 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1315 | |
de02d078 MB |
1316 | DAPM_UPDATE_STAT(w, power_checks); |
1317 | ||
246d0a17 MB |
1318 | /* Check if one of our outputs is connected */ |
1319 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1320 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1321 | ||
bf3a9e13 MB |
1322 | if (path->weak) |
1323 | continue; | |
1324 | ||
215edda3 MB |
1325 | if (path->connected && |
1326 | !path->connected(path->source, path->sink)) | |
1327 | continue; | |
1328 | ||
3017358a MB |
1329 | if (!path->sink) |
1330 | continue; | |
1331 | ||
f68d7e16 MB |
1332 | if (dapm_widget_power_check(path->sink)) |
1333 | return 1; | |
246d0a17 MB |
1334 | } |
1335 | ||
f68d7e16 | 1336 | return 0; |
246d0a17 MB |
1337 | } |
1338 | ||
35c64bca MB |
1339 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1340 | { | |
1341 | return 1; | |
1342 | } | |
1343 | ||
38357ab2 MB |
1344 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1345 | struct snd_soc_dapm_widget *b, | |
828a842f | 1346 | bool power_up) |
42aa3418 | 1347 | { |
828a842f MB |
1348 | int *sort; |
1349 | ||
1350 | if (power_up) | |
1351 | sort = dapm_up_seq; | |
1352 | else | |
1353 | sort = dapm_down_seq; | |
1354 | ||
38357ab2 MB |
1355 | if (sort[a->id] != sort[b->id]) |
1356 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1357 | if (a->subseq != b->subseq) { |
1358 | if (power_up) | |
1359 | return a->subseq - b->subseq; | |
1360 | else | |
1361 | return b->subseq - a->subseq; | |
1362 | } | |
b22ead2a MB |
1363 | if (a->reg != b->reg) |
1364 | return a->reg - b->reg; | |
84dab567 MB |
1365 | if (a->dapm != b->dapm) |
1366 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1367 | |
38357ab2 MB |
1368 | return 0; |
1369 | } | |
42aa3418 | 1370 | |
38357ab2 MB |
1371 | /* Insert a widget in order into a DAPM power sequence. */ |
1372 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1373 | struct list_head *list, | |
828a842f | 1374 | bool power_up) |
38357ab2 MB |
1375 | { |
1376 | struct snd_soc_dapm_widget *w; | |
1377 | ||
1378 | list_for_each_entry(w, list, power_list) | |
828a842f | 1379 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1380 | list_add_tail(&new_widget->power_list, &w->power_list); |
1381 | return; | |
1382 | } | |
1383 | ||
1384 | list_add_tail(&new_widget->power_list, list); | |
1385 | } | |
1386 | ||
95dd5cd6 | 1387 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1388 | struct snd_soc_dapm_widget *w, int event) |
1389 | { | |
68f89ad8 MB |
1390 | const char *ev_name; |
1391 | int power, ret; | |
1392 | ||
1393 | switch (event) { | |
1394 | case SND_SOC_DAPM_PRE_PMU: | |
1395 | ev_name = "PRE_PMU"; | |
1396 | power = 1; | |
1397 | break; | |
1398 | case SND_SOC_DAPM_POST_PMU: | |
1399 | ev_name = "POST_PMU"; | |
1400 | power = 1; | |
1401 | break; | |
1402 | case SND_SOC_DAPM_PRE_PMD: | |
1403 | ev_name = "PRE_PMD"; | |
1404 | power = 0; | |
1405 | break; | |
1406 | case SND_SOC_DAPM_POST_PMD: | |
1407 | ev_name = "POST_PMD"; | |
1408 | power = 0; | |
1409 | break; | |
80114129 MB |
1410 | case SND_SOC_DAPM_WILL_PMU: |
1411 | ev_name = "WILL_PMU"; | |
1412 | power = 1; | |
1413 | break; | |
1414 | case SND_SOC_DAPM_WILL_PMD: | |
1415 | ev_name = "WILL_PMD"; | |
1416 | power = 0; | |
1417 | break; | |
68f89ad8 MB |
1418 | default: |
1419 | BUG(); | |
1420 | return; | |
1421 | } | |
1422 | ||
39eb5fd1 | 1423 | if (w->new_power != power) |
68f89ad8 MB |
1424 | return; |
1425 | ||
1426 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1427 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1428 | w->name, ev_name); |
84e90930 | 1429 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1430 | ret = w->event(w, NULL, event); |
84e90930 | 1431 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1432 | if (ret < 0) |
95dd5cd6 | 1433 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1434 | ev_name, w->name, ret); |
1435 | } | |
1436 | } | |
1437 | ||
b22ead2a | 1438 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1439 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1440 | struct list_head *pending) |
163cac06 | 1441 | { |
68f89ad8 | 1442 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1443 | int reg; |
b22ead2a MB |
1444 | unsigned int value = 0; |
1445 | unsigned int mask = 0; | |
b22ead2a MB |
1446 | |
1447 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1448 | power_list)->reg; | |
1449 | ||
1450 | list_for_each_entry(w, pending, power_list) { | |
b22ead2a | 1451 | BUG_ON(reg != w->reg); |
39eb5fd1 | 1452 | w->power = w->new_power; |
b22ead2a | 1453 | |
de9ba98b LPC |
1454 | mask |= w->mask << w->shift; |
1455 | if (w->power) | |
1456 | value |= w->on_val << w->shift; | |
b22ead2a | 1457 | else |
de9ba98b | 1458 | value |= w->off_val << w->shift; |
b22ead2a | 1459 | |
95dd5cd6 | 1460 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1461 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1462 | w->name, reg, value, mask); | |
81628103 | 1463 | |
68f89ad8 | 1464 | /* Check for events */ |
95dd5cd6 LPC |
1465 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1466 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1467 | } |
1468 | ||
1469 | if (reg >= 0) { | |
29376bc7 MB |
1470 | /* Any widget will do, they should all be updating the |
1471 | * same register. | |
1472 | */ | |
1473 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1474 | power_list); | |
1475 | ||
95dd5cd6 | 1476 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1477 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1478 | value, mask, reg, card->pop_time); |
1479 | pop_wait(card->pop_time); | |
49575fb5 | 1480 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1481 | } |
1482 | ||
81628103 | 1483 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1484 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1485 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1486 | } |
b22ead2a | 1487 | } |
42aa3418 | 1488 | |
b22ead2a MB |
1489 | /* Apply a DAPM power sequence. |
1490 | * | |
1491 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1492 | * order to minimise the number of writes to the device required | |
1493 | * multiple widgets will be updated in a single write where possible. | |
1494 | * Currently anything that requires more than a single write is not | |
1495 | * handled. | |
1496 | */ | |
95dd5cd6 LPC |
1497 | static void dapm_seq_run(struct snd_soc_card *card, |
1498 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1499 | { |
1500 | struct snd_soc_dapm_widget *w, *n; | |
1501 | LIST_HEAD(pending); | |
1502 | int cur_sort = -1; | |
20e4859d | 1503 | int cur_subseq = -1; |
b22ead2a | 1504 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1505 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1506 | int ret, i; |
828a842f MB |
1507 | int *sort; |
1508 | ||
1509 | if (power_up) | |
1510 | sort = dapm_up_seq; | |
1511 | else | |
1512 | sort = dapm_down_seq; | |
163cac06 | 1513 | |
b22ead2a MB |
1514 | list_for_each_entry_safe(w, n, list, power_list) { |
1515 | ret = 0; | |
1516 | ||
1517 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1518 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1519 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1520 | if (!list_empty(&pending)) |
95dd5cd6 | 1521 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1522 | |
474b62d6 MB |
1523 | if (cur_dapm && cur_dapm->seq_notifier) { |
1524 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1525 | if (sort[i] == cur_sort) | |
1526 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1527 | i, |
1528 | cur_subseq); | |
474b62d6 MB |
1529 | } |
1530 | ||
b22ead2a MB |
1531 | INIT_LIST_HEAD(&pending); |
1532 | cur_sort = -1; | |
b0b3e6f8 | 1533 | cur_subseq = INT_MIN; |
b22ead2a | 1534 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1535 | cur_dapm = NULL; |
b22ead2a MB |
1536 | } |
1537 | ||
163cac06 MB |
1538 | switch (w->id) { |
1539 | case snd_soc_dapm_pre: | |
1540 | if (!w->event) | |
b22ead2a MB |
1541 | list_for_each_entry_safe_continue(w, n, list, |
1542 | power_list); | |
163cac06 | 1543 | |
b22ead2a | 1544 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1545 | ret = w->event(w, |
1546 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1547 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1548 | ret = w->event(w, |
1549 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1550 | break; |
1551 | ||
1552 | case snd_soc_dapm_post: | |
1553 | if (!w->event) | |
b22ead2a MB |
1554 | list_for_each_entry_safe_continue(w, n, list, |
1555 | power_list); | |
163cac06 | 1556 | |
b22ead2a | 1557 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1558 | ret = w->event(w, |
1559 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1560 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1561 | ret = w->event(w, |
1562 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1563 | break; |
1564 | ||
b22ead2a | 1565 | default: |
81628103 MB |
1566 | /* Queue it up for application */ |
1567 | cur_sort = sort[w->id]; | |
20e4859d | 1568 | cur_subseq = w->subseq; |
81628103 | 1569 | cur_reg = w->reg; |
7be31be8 | 1570 | cur_dapm = w->dapm; |
81628103 MB |
1571 | list_move(&w->power_list, &pending); |
1572 | break; | |
163cac06 | 1573 | } |
b22ead2a MB |
1574 | |
1575 | if (ret < 0) | |
f7d41ae8 | 1576 | dev_err(w->dapm->dev, |
30a6a1a4 | 1577 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1578 | } |
b22ead2a MB |
1579 | |
1580 | if (!list_empty(&pending)) | |
95dd5cd6 | 1581 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1582 | |
1583 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1584 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1585 | if (sort[i] == cur_sort) | |
1586 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1587 | i, cur_subseq); |
474b62d6 | 1588 | } |
42aa3418 MB |
1589 | } |
1590 | ||
95dd5cd6 | 1591 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1592 | { |
95dd5cd6 | 1593 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1594 | struct snd_soc_dapm_widget_list *wlist; |
1595 | struct snd_soc_dapm_widget *w = NULL; | |
1596 | unsigned int wi; | |
97404f2e MB |
1597 | int ret; |
1598 | ||
57295073 | 1599 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1600 | return; |
1601 | ||
e84357f7 | 1602 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1603 | |
ce6cfaf1 LPC |
1604 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1605 | w = wlist->widgets[wi]; | |
1606 | ||
1607 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1608 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1609 | if (ret != 0) | |
95dd5cd6 | 1610 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1611 | w->name, ret); |
1612 | } | |
97404f2e MB |
1613 | } |
1614 | ||
ce6cfaf1 LPC |
1615 | if (!w) |
1616 | return; | |
1617 | ||
49575fb5 | 1618 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1619 | update->val); |
1620 | if (ret < 0) | |
95dd5cd6 | 1621 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1622 | w->name, ret); |
97404f2e | 1623 | |
ce6cfaf1 LPC |
1624 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1625 | w = wlist->widgets[wi]; | |
1626 | ||
1627 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1628 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1629 | if (ret != 0) | |
95dd5cd6 | 1630 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1631 | w->name, ret); |
1632 | } | |
97404f2e MB |
1633 | } |
1634 | } | |
1635 | ||
9d0624a7 MB |
1636 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1637 | * they're changing state. | |
1638 | */ | |
1639 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1640 | { | |
1641 | struct snd_soc_dapm_context *d = data; | |
1642 | int ret; | |
1643 | ||
56fba41f MB |
1644 | /* If we're off and we're not supposed to be go into STANDBY */ |
1645 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1646 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1647 | if (d->dev) |
1648 | pm_runtime_get_sync(d->dev); | |
1649 | ||
9d0624a7 MB |
1650 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1651 | if (ret != 0) | |
1652 | dev_err(d->dev, | |
30a6a1a4 | 1653 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1654 | } |
1655 | ||
56fba41f MB |
1656 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1657 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1658 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1659 | if (ret != 0) | |
1660 | dev_err(d->dev, | |
30a6a1a4 | 1661 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1662 | } |
1663 | } | |
1664 | ||
1665 | /* Async callback run prior to DAPM sequences - brings to their final | |
1666 | * state. | |
1667 | */ | |
1668 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1669 | { | |
1670 | struct snd_soc_dapm_context *d = data; | |
1671 | int ret; | |
1672 | ||
1673 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1674 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1675 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1676 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1677 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1678 | if (ret != 0) | |
30a6a1a4 | 1679 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1680 | ret); |
1681 | } | |
97404f2e | 1682 | |
9d0624a7 | 1683 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1684 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1685 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1686 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1687 | if (ret != 0) | |
30a6a1a4 LG |
1688 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1689 | ret); | |
f1aac484 MB |
1690 | |
1691 | if (d->dev) | |
fb644e9c | 1692 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1693 | } |
1694 | ||
1695 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1696 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1697 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1698 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1699 | if (ret != 0) | |
30a6a1a4 | 1700 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1701 | ret); |
1702 | } | |
1703 | } | |
97404f2e | 1704 | |
fe4fda5d MB |
1705 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1706 | bool power, bool connect) | |
1707 | { | |
1708 | /* If a connection is being made or broken then that update | |
1709 | * will have marked the peer dirty, otherwise the widgets are | |
1710 | * not connected and this update has no impact. */ | |
1711 | if (!connect) | |
1712 | return; | |
1713 | ||
1714 | /* If the peer is already in the state we're moving to then we | |
1715 | * won't have an impact on it. */ | |
1716 | if (power != peer->power) | |
75c1f891 | 1717 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1718 | } |
1719 | ||
05623c43 MB |
1720 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1721 | struct list_head *up_list, | |
1722 | struct list_head *down_list) | |
1723 | { | |
db432b41 MB |
1724 | struct snd_soc_dapm_path *path; |
1725 | ||
05623c43 MB |
1726 | if (w->power == power) |
1727 | return; | |
1728 | ||
1729 | trace_snd_soc_dapm_widget_power(w, power); | |
1730 | ||
db432b41 | 1731 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1732 | * also. |
db432b41 MB |
1733 | */ |
1734 | list_for_each_entry(path, &w->sources, list_sink) { | |
1735 | if (path->source) { | |
fe4fda5d MB |
1736 | dapm_widget_set_peer_power(path->source, power, |
1737 | path->connect); | |
db432b41 MB |
1738 | } |
1739 | } | |
f3bf3e45 MB |
1740 | switch (w->id) { |
1741 | case snd_soc_dapm_supply: | |
62ea874a | 1742 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1743 | case snd_soc_dapm_clock_supply: |
57295073 | 1744 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1745 | /* Supplies can't affect their outputs, only their inputs */ |
1746 | break; | |
1747 | default: | |
1748 | list_for_each_entry(path, &w->sinks, list_source) { | |
1749 | if (path->sink) { | |
1750 | dapm_widget_set_peer_power(path->sink, power, | |
1751 | path->connect); | |
1752 | } | |
db432b41 | 1753 | } |
f3bf3e45 | 1754 | break; |
db432b41 MB |
1755 | } |
1756 | ||
05623c43 MB |
1757 | if (power) |
1758 | dapm_seq_insert(w, up_list, true); | |
1759 | else | |
1760 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1761 | } |
1762 | ||
7c81beb0 MB |
1763 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1764 | struct list_head *up_list, | |
1765 | struct list_head *down_list) | |
1766 | { | |
7c81beb0 MB |
1767 | int power; |
1768 | ||
1769 | switch (w->id) { | |
1770 | case snd_soc_dapm_pre: | |
1771 | dapm_seq_insert(w, down_list, false); | |
1772 | break; | |
1773 | case snd_soc_dapm_post: | |
1774 | dapm_seq_insert(w, up_list, true); | |
1775 | break; | |
1776 | ||
1777 | default: | |
d805002b | 1778 | power = dapm_widget_power_check(w); |
7c81beb0 | 1779 | |
05623c43 | 1780 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1781 | break; |
1782 | } | |
1783 | } | |
1784 | ||
2b97eabc RP |
1785 | /* |
1786 | * Scan each dapm widget for complete audio path. | |
1787 | * A complete path is a route that has valid endpoints i.e.:- | |
1788 | * | |
1789 | * o DAC to output pin. | |
1790 | * o Input Pin to ADC. | |
1791 | * o Input pin to Output pin (bypass, sidetone) | |
1792 | * o DAC to ADC (loopback). | |
1793 | */ | |
95dd5cd6 | 1794 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1795 | { |
1796 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1797 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1798 | LIST_HEAD(up_list); |
1799 | LIST_HEAD(down_list); | |
2955b47d | 1800 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1801 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1802 | |
84e90930 MB |
1803 | trace_snd_soc_dapm_start(card); |
1804 | ||
56fba41f | 1805 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1806 | if (d->idle_bias_off) |
1807 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1808 | else | |
1809 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1810 | } |
7be31be8 | 1811 | |
6c120e19 | 1812 | dapm_reset(card); |
9b8a83b2 | 1813 | |
6d3ddc81 | 1814 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1815 | * lists indicating if they should be powered up or down. We |
1816 | * only check widgets that have been flagged as dirty but note | |
1817 | * that new widgets may be added to the dirty list while we | |
1818 | * iterate. | |
6d3ddc81 | 1819 | */ |
db432b41 | 1820 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1821 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1822 | } |
1823 | ||
f9de6d74 | 1824 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1825 | switch (w->id) { |
1826 | case snd_soc_dapm_pre: | |
1827 | case snd_soc_dapm_post: | |
1828 | /* These widgets always need to be powered */ | |
1829 | break; | |
1830 | default: | |
1831 | list_del_init(&w->dirty); | |
1832 | break; | |
1833 | } | |
db432b41 | 1834 | |
39eb5fd1 | 1835 | if (w->new_power) { |
f9de6d74 MB |
1836 | d = w->dapm; |
1837 | ||
1838 | /* Supplies and micbiases only bring the | |
1839 | * context up to STANDBY as unless something | |
1840 | * else is active and passing audio they | |
afe62367 MB |
1841 | * generally don't require full power. Signal |
1842 | * generators are virtual pins and have no | |
1843 | * power impact themselves. | |
f9de6d74 MB |
1844 | */ |
1845 | switch (w->id) { | |
afe62367 | 1846 | case snd_soc_dapm_siggen: |
da83fea6 | 1847 | case snd_soc_dapm_vmid: |
afe62367 | 1848 | break; |
f9de6d74 | 1849 | case snd_soc_dapm_supply: |
62ea874a | 1850 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1851 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1852 | case snd_soc_dapm_micbias: |
1853 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1854 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1855 | break; | |
1856 | default: | |
1857 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1858 | break; | |
1859 | } | |
1860 | } | |
1861 | ||
1862 | } | |
1863 | ||
85a843c5 MB |
1864 | /* Force all contexts in the card to the same bias state if |
1865 | * they're not ground referenced. | |
1866 | */ | |
56fba41f | 1867 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1868 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1869 | if (d->target_bias_level > bias) |
1870 | bias = d->target_bias_level; | |
52ba67bf | 1871 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1872 | if (!d->idle_bias_off) |
1873 | d->target_bias_level = bias; | |
52ba67bf | 1874 | |
de02d078 | 1875 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1876 | |
9d0624a7 | 1877 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1878 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1879 | async_schedule_domain(dapm_pre_sequence_async, d, |
1880 | &async_domain); | |
1881 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1882 | |
cf1f7c6e | 1883 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1884 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1885 | } |
1886 | ||
cf1f7c6e | 1887 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1888 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1889 | } |
1890 | ||
6d3ddc81 | 1891 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1892 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1893 | |
95dd5cd6 | 1894 | dapm_widget_update(card); |
97404f2e | 1895 | |
6d3ddc81 | 1896 | /* Now power up. */ |
95dd5cd6 | 1897 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1898 | |
9d0624a7 | 1899 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1900 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1901 | async_schedule_domain(dapm_post_sequence_async, d, |
1902 | &async_domain); | |
1903 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1904 | |
8078d87f LG |
1905 | /* do we need to notify any clients that DAPM event is complete */ |
1906 | list_for_each_entry(d, &card->dapm_list, list) { | |
1907 | if (d->stream_event) | |
1908 | d->stream_event(d, event); | |
1909 | } | |
1910 | ||
95dd5cd6 | 1911 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1912 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1913 | pop_wait(card->pop_time); |
cb507e7e | 1914 | |
84e90930 MB |
1915 | trace_snd_soc_dapm_done(card); |
1916 | ||
42aa3418 | 1917 | return 0; |
2b97eabc RP |
1918 | } |
1919 | ||
79fb9387 | 1920 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1921 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1922 | char __user *user_buf, | |
1923 | size_t count, loff_t *ppos) | |
1924 | { | |
1925 | struct snd_soc_dapm_widget *w = file->private_data; | |
1926 | char *buf; | |
1927 | int in, out; | |
1928 | ssize_t ret; | |
1929 | struct snd_soc_dapm_path *p = NULL; | |
1930 | ||
1931 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1932 | if (!buf) | |
1933 | return -ENOMEM; | |
1934 | ||
ec2e3031 | 1935 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1936 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1937 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1938 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1939 | |
f13ebada MB |
1940 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1941 | w->name, w->power ? "On" : "Off", | |
1942 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1943 | |
d033c36a MB |
1944 | if (w->reg >= 0) |
1945 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1946 | " - R%d(0x%x) mask 0x%x", |
1947 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1948 | |
1949 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1950 | ||
3eef08ba MB |
1951 | if (w->sname) |
1952 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1953 | w->sname, | |
1954 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1955 | |
1956 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1957 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1958 | continue; |
1959 | ||
79fb9387 MB |
1960 | if (p->connect) |
1961 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1962 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1963 | p->name ? p->name : "static", |
1964 | p->source->name); | |
1965 | } | |
1966 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1967 | if (p->connected && !p->connected(w, p->sink)) |
1968 | continue; | |
1969 | ||
79fb9387 MB |
1970 | if (p->connect) |
1971 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1972 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1973 | p->name ? p->name : "static", |
1974 | p->sink->name); | |
1975 | } | |
1976 | ||
1977 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1978 | ||
1979 | kfree(buf); | |
1980 | return ret; | |
1981 | } | |
1982 | ||
1983 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1984 | .open = simple_open, |
79fb9387 | 1985 | .read = dapm_widget_power_read_file, |
6038f373 | 1986 | .llseek = default_llseek, |
79fb9387 MB |
1987 | }; |
1988 | ||
ef49e4fa MB |
1989 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1990 | size_t count, loff_t *ppos) | |
1991 | { | |
1992 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1993 | char *level; | |
1994 | ||
1995 | switch (dapm->bias_level) { | |
1996 | case SND_SOC_BIAS_ON: | |
1997 | level = "On\n"; | |
1998 | break; | |
1999 | case SND_SOC_BIAS_PREPARE: | |
2000 | level = "Prepare\n"; | |
2001 | break; | |
2002 | case SND_SOC_BIAS_STANDBY: | |
2003 | level = "Standby\n"; | |
2004 | break; | |
2005 | case SND_SOC_BIAS_OFF: | |
2006 | level = "Off\n"; | |
2007 | break; | |
2008 | default: | |
2009 | BUG(); | |
2010 | level = "Unknown\n"; | |
2011 | break; | |
2012 | } | |
2013 | ||
2014 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2015 | strlen(level)); | |
2016 | } | |
2017 | ||
2018 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2019 | .open = simple_open, |
ef49e4fa MB |
2020 | .read = dapm_bias_read_file, |
2021 | .llseek = default_llseek, | |
2022 | }; | |
2023 | ||
8eecaf62 LPC |
2024 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2025 | struct dentry *parent) | |
79fb9387 | 2026 | { |
79fb9387 MB |
2027 | struct dentry *d; |
2028 | ||
8eecaf62 LPC |
2029 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2030 | ||
2031 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2032 | dev_warn(dapm->dev, |
30a6a1a4 | 2033 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2034 | return; |
8eecaf62 | 2035 | } |
79fb9387 | 2036 | |
ef49e4fa MB |
2037 | d = debugfs_create_file("bias_level", 0444, |
2038 | dapm->debugfs_dapm, dapm, | |
2039 | &dapm_bias_fops); | |
2040 | if (!d) | |
2041 | dev_warn(dapm->dev, | |
2042 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2043 | } |
ef49e4fa | 2044 | |
d5d1e0be LPC |
2045 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2046 | { | |
2047 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2048 | struct dentry *d; | |
79fb9387 | 2049 | |
d5d1e0be LPC |
2050 | if (!dapm->debugfs_dapm || !w->name) |
2051 | return; | |
2052 | ||
2053 | d = debugfs_create_file(w->name, 0444, | |
2054 | dapm->debugfs_dapm, w, | |
2055 | &dapm_widget_power_fops); | |
2056 | if (!d) | |
2057 | dev_warn(w->dapm->dev, | |
2058 | "ASoC: Failed to create %s debugfs file\n", | |
2059 | w->name); | |
79fb9387 | 2060 | } |
d5d1e0be | 2061 | |
6c45e126 LPC |
2062 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2063 | { | |
2064 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2065 | } | |
2066 | ||
79fb9387 | 2067 | #else |
8eecaf62 LPC |
2068 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2069 | struct dentry *parent) | |
79fb9387 MB |
2070 | { |
2071 | } | |
d5d1e0be LPC |
2072 | |
2073 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2074 | { | |
2075 | } | |
2076 | ||
6c45e126 LPC |
2077 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2078 | { | |
2079 | } | |
2080 | ||
79fb9387 MB |
2081 | #endif |
2082 | ||
2b97eabc | 2083 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2084 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2085 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2086 | { |
2087 | struct snd_soc_dapm_path *path; | |
2088 | int found = 0; | |
2089 | ||
2b97eabc | 2090 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2091 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2092 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2093 | continue; |
2094 | ||
2095 | found = 1; | |
2096 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2097 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2098 | path->connect = 1; /* new connection */ |
75c1f891 | 2099 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2100 | } else { |
2101 | if (path->connect) | |
75c1f891 MB |
2102 | dapm_mark_dirty(path->source, |
2103 | "mux disconnection"); | |
2b97eabc | 2104 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2105 | } |
ce6cfaf1 | 2106 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2107 | } |
2108 | ||
ce6cfaf1 | 2109 | if (found) |
95dd5cd6 | 2110 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2111 | |
618dae11 | 2112 | return found; |
2b97eabc | 2113 | } |
4edbb345 | 2114 | |
ce6cfaf1 | 2115 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2116 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2117 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2118 | { |
ce6cfaf1 | 2119 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2120 | int ret; |
2121 | ||
3cd04343 | 2122 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2123 | card->update = update; |
95dd5cd6 | 2124 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2125 | card->update = NULL; |
4edbb345 | 2126 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2127 | if (ret > 0) |
c3f48ae6 | 2128 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2129 | return ret; |
2130 | } | |
40f02cd9 | 2131 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2132 | |
1b075e3f | 2133 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2134 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2135 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2136 | { |
2137 | struct snd_soc_dapm_path *path; | |
2138 | int found = 0; | |
2139 | ||
2b97eabc | 2140 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2141 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2142 | found = 1; |
283375ce | 2143 | path->connect = connect; |
75c1f891 | 2144 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2145 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2146 | } |
2147 | ||
ce6cfaf1 | 2148 | if (found) |
95dd5cd6 | 2149 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2150 | |
618dae11 | 2151 | return found; |
2b97eabc | 2152 | } |
4edbb345 | 2153 | |
ce6cfaf1 | 2154 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2155 | struct snd_kcontrol *kcontrol, int connect, |
2156 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2157 | { |
ce6cfaf1 | 2158 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2159 | int ret; |
2160 | ||
3cd04343 | 2161 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2162 | card->update = update; |
95dd5cd6 | 2163 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2164 | card->update = NULL; |
4edbb345 | 2165 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2166 | if (ret > 0) |
c3f48ae6 | 2167 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2168 | return ret; |
2169 | } | |
40f02cd9 | 2170 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2171 | |
2172 | /* show dapm widget status in sys fs */ | |
2173 | static ssize_t dapm_widget_show(struct device *dev, | |
2174 | struct device_attribute *attr, char *buf) | |
2175 | { | |
36ae1a96 | 2176 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2177 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2178 | struct snd_soc_dapm_widget *w; |
2179 | int count = 0; | |
2180 | char *state = "not set"; | |
2181 | ||
97c866de JN |
2182 | list_for_each_entry(w, &codec->card->widgets, list) { |
2183 | if (w->dapm != &codec->dapm) | |
2184 | continue; | |
2b97eabc RP |
2185 | |
2186 | /* only display widgets that burnm power */ | |
2187 | switch (w->id) { | |
2188 | case snd_soc_dapm_hp: | |
2189 | case snd_soc_dapm_mic: | |
2190 | case snd_soc_dapm_spk: | |
2191 | case snd_soc_dapm_line: | |
2192 | case snd_soc_dapm_micbias: | |
2193 | case snd_soc_dapm_dac: | |
2194 | case snd_soc_dapm_adc: | |
2195 | case snd_soc_dapm_pga: | |
d88429a6 | 2196 | case snd_soc_dapm_out_drv: |
2b97eabc | 2197 | case snd_soc_dapm_mixer: |
ca9c1aae | 2198 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2199 | case snd_soc_dapm_supply: |
62ea874a | 2200 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2201 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2202 | if (w->name) |
2203 | count += sprintf(buf + count, "%s: %s\n", | |
2204 | w->name, w->power ? "On":"Off"); | |
2205 | break; | |
2206 | default: | |
2207 | break; | |
2208 | } | |
2209 | } | |
2210 | ||
ce6120cc | 2211 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2212 | case SND_SOC_BIAS_ON: |
2213 | state = "On"; | |
2b97eabc | 2214 | break; |
0be9898a MB |
2215 | case SND_SOC_BIAS_PREPARE: |
2216 | state = "Prepare"; | |
2b97eabc | 2217 | break; |
0be9898a MB |
2218 | case SND_SOC_BIAS_STANDBY: |
2219 | state = "Standby"; | |
2b97eabc | 2220 | break; |
0be9898a MB |
2221 | case SND_SOC_BIAS_OFF: |
2222 | state = "Off"; | |
2b97eabc RP |
2223 | break; |
2224 | } | |
2225 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2226 | ||
2227 | return count; | |
2228 | } | |
2229 | ||
2230 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2231 | ||
2232 | int snd_soc_dapm_sys_add(struct device *dev) | |
2233 | { | |
12ef193d | 2234 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2235 | } |
2236 | ||
2237 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2238 | { | |
aef90843 | 2239 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2240 | } |
2241 | ||
8872293f LPC |
2242 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2243 | { | |
2244 | list_del(&path->list_sink); | |
2245 | list_del(&path->list_source); | |
5106b92f | 2246 | list_del(&path->list_kcontrol); |
8872293f | 2247 | list_del(&path->list); |
8872293f LPC |
2248 | kfree(path); |
2249 | } | |
2250 | ||
2b97eabc | 2251 | /* free all dapm widgets and resources */ |
ce6120cc | 2252 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2253 | { |
2254 | struct snd_soc_dapm_widget *w, *next_w; | |
2255 | struct snd_soc_dapm_path *p, *next_p; | |
2256 | ||
97c866de JN |
2257 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2258 | if (w->dapm != dapm) | |
2259 | continue; | |
2b97eabc | 2260 | list_del(&w->list); |
8ddab3f5 JN |
2261 | /* |
2262 | * remove source and sink paths associated to this widget. | |
2263 | * While removing the path, remove reference to it from both | |
2264 | * source and sink widgets so that path is removed only once. | |
2265 | */ | |
8872293f LPC |
2266 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2267 | dapm_free_path(p); | |
2268 | ||
2269 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2270 | dapm_free_path(p); | |
2271 | ||
fad59888 | 2272 | kfree(w->kcontrols); |
ead9b919 | 2273 | kfree(w->name); |
2b97eabc RP |
2274 | kfree(w); |
2275 | } | |
2b97eabc RP |
2276 | } |
2277 | ||
91a5fca4 LPC |
2278 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2279 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2280 | bool search_other_contexts) | |
a5302181 LG |
2281 | { |
2282 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2283 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2284 | |
97c866de | 2285 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2286 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2287 | if (w->dapm == dapm) |
2288 | return w; | |
2289 | else | |
2290 | fallback = w; | |
a5302181 LG |
2291 | } |
2292 | } | |
2293 | ||
91a5fca4 LPC |
2294 | if (search_other_contexts) |
2295 | return fallback; | |
2296 | ||
2297 | return NULL; | |
2298 | } | |
2299 | ||
2300 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2301 | const char *pin, int status) | |
2302 | { | |
2303 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2304 | ||
2305 | if (!w) { | |
30a6a1a4 | 2306 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2307 | return -EINVAL; |
0d86733c MB |
2308 | } |
2309 | ||
1a8b2d9d MB |
2310 | if (w->connected != status) |
2311 | dapm_mark_dirty(w, "pin configuration"); | |
2312 | ||
91a5fca4 LPC |
2313 | w->connected = status; |
2314 | if (status == 0) | |
2315 | w->force = 0; | |
2316 | ||
2317 | return 0; | |
a5302181 LG |
2318 | } |
2319 | ||
2b97eabc | 2320 | /** |
a5302181 | 2321 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2322 | * @dapm: DAPM context |
2b97eabc RP |
2323 | * |
2324 | * Walks all dapm audio paths and powers widgets according to their | |
2325 | * stream or path usage. | |
2326 | * | |
2327 | * Returns 0 for success. | |
2328 | */ | |
ce6120cc | 2329 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2330 | { |
a73fb2df LG |
2331 | int ret; |
2332 | ||
4f4c0072 MB |
2333 | /* |
2334 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2335 | * silly DAPM runs during card startup. | |
2336 | */ | |
2337 | if (!dapm->card || !dapm->card->instantiated) | |
2338 | return 0; | |
2339 | ||
3cd04343 | 2340 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
95dd5cd6 | 2341 | ret = dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df LG |
2342 | mutex_unlock(&dapm->card->dapm_mutex); |
2343 | return ret; | |
2b97eabc | 2344 | } |
a5302181 | 2345 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2346 | |
2553628e LPC |
2347 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2348 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2349 | const char *control, | |
2350 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2351 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2352 | { |
2353 | struct snd_soc_dapm_path *path; | |
2553628e | 2354 | int ret; |
2b97eabc RP |
2355 | |
2356 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2357 | if (!path) | |
2358 | return -ENOMEM; | |
2359 | ||
2360 | path->source = wsource; | |
2361 | path->sink = wsink; | |
2553628e | 2362 | path->connected = connected; |
2b97eabc | 2363 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2364 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2365 | INIT_LIST_HEAD(&path->list_source); |
2366 | INIT_LIST_HEAD(&path->list_sink); | |
2367 | ||
2368 | /* check for external widgets */ | |
2369 | if (wsink->id == snd_soc_dapm_input) { | |
2370 | if (wsource->id == snd_soc_dapm_micbias || | |
2371 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2372 | wsource->id == snd_soc_dapm_line || |
2373 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2374 | wsink->ext = 1; |
2375 | } | |
2376 | if (wsource->id == snd_soc_dapm_output) { | |
2377 | if (wsink->id == snd_soc_dapm_spk || | |
2378 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2379 | wsink->id == snd_soc_dapm_line || |
2380 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2381 | wsource->ext = 1; |
2382 | } | |
2383 | ||
34742cb0 LPC |
2384 | dapm_mark_dirty(wsource, "Route added"); |
2385 | dapm_mark_dirty(wsink, "Route added"); | |
2386 | ||
2b97eabc RP |
2387 | /* connect static paths */ |
2388 | if (control == NULL) { | |
8ddab3f5 | 2389 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2390 | list_add(&path->list_sink, &wsink->sources); |
2391 | list_add(&path->list_source, &wsource->sinks); | |
2392 | path->connect = 1; | |
2393 | return 0; | |
2394 | } | |
2395 | ||
2396 | /* connect dynamic paths */ | |
dc2bea61 | 2397 | switch (wsink->id) { |
2b97eabc RP |
2398 | case snd_soc_dapm_adc: |
2399 | case snd_soc_dapm_dac: | |
2400 | case snd_soc_dapm_pga: | |
d88429a6 | 2401 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2402 | case snd_soc_dapm_input: |
2403 | case snd_soc_dapm_output: | |
1ab97c8c | 2404 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2405 | case snd_soc_dapm_micbias: |
2406 | case snd_soc_dapm_vmid: | |
2407 | case snd_soc_dapm_pre: | |
2408 | case snd_soc_dapm_post: | |
246d0a17 | 2409 | case snd_soc_dapm_supply: |
62ea874a | 2410 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2411 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2412 | case snd_soc_dapm_aif_in: |
2413 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2414 | case snd_soc_dapm_dai_in: |
2415 | case snd_soc_dapm_dai_out: | |
c74184ed | 2416 | case snd_soc_dapm_dai_link: |
57295073 | 2417 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2418 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2419 | list_add(&path->list_sink, &wsink->sources); |
2420 | list_add(&path->list_source, &wsource->sinks); | |
2421 | path->connect = 1; | |
2422 | return 0; | |
2423 | case snd_soc_dapm_mux: | |
24ff33ac | 2424 | case snd_soc_dapm_virt_mux: |
74155556 | 2425 | case snd_soc_dapm_value_mux: |
ce6120cc | 2426 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2427 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2428 | if (ret != 0) |
2429 | goto err; | |
2430 | break; | |
2431 | case snd_soc_dapm_switch: | |
2432 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2433 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2434 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2435 | if (ret != 0) |
2436 | goto err; | |
2437 | break; | |
2438 | case snd_soc_dapm_hp: | |
2439 | case snd_soc_dapm_mic: | |
2440 | case snd_soc_dapm_line: | |
2441 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2442 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2443 | list_add(&path->list_sink, &wsink->sources); |
2444 | list_add(&path->list_source, &wsource->sinks); | |
2445 | path->connect = 0; | |
2446 | return 0; | |
2447 | } | |
fabd0384 | 2448 | |
2b97eabc | 2449 | return 0; |
2553628e LPC |
2450 | err: |
2451 | kfree(path); | |
2452 | return ret; | |
2453 | } | |
2b97eabc | 2454 | |
2553628e LPC |
2455 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
2456 | const struct snd_soc_dapm_route *route) | |
2457 | { | |
2458 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2459 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2460 | const char *sink; | |
2461 | const char *source; | |
2462 | char prefixed_sink[80]; | |
2463 | char prefixed_source[80]; | |
2464 | int ret; | |
2465 | ||
2466 | if (dapm->codec && dapm->codec->name_prefix) { | |
2467 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2468 | dapm->codec->name_prefix, route->sink); | |
2469 | sink = prefixed_sink; | |
2470 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2471 | dapm->codec->name_prefix, route->source); | |
2472 | source = prefixed_source; | |
2473 | } else { | |
2474 | sink = route->sink; | |
2475 | source = route->source; | |
2476 | } | |
2477 | ||
2478 | /* | |
2479 | * find src and dest widgets over all widgets but favor a widget from | |
2480 | * current DAPM context | |
2481 | */ | |
2482 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2483 | if (!wsink && !(strcmp(w->name, sink))) { | |
2484 | wtsink = w; | |
2485 | if (w->dapm == dapm) | |
2486 | wsink = w; | |
2487 | continue; | |
2488 | } | |
2489 | if (!wsource && !(strcmp(w->name, source))) { | |
2490 | wtsource = w; | |
2491 | if (w->dapm == dapm) | |
2492 | wsource = w; | |
2493 | } | |
2494 | } | |
2495 | /* use widget from another DAPM context if not found from this */ | |
2496 | if (!wsink) | |
2497 | wsink = wtsink; | |
2498 | if (!wsource) | |
2499 | wsource = wtsource; | |
2500 | ||
2501 | if (wsource == NULL) { | |
2502 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2503 | route->source); | |
2504 | return -ENODEV; | |
2505 | } | |
2506 | if (wsink == NULL) { | |
2507 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2508 | route->sink); | |
2509 | return -ENODEV; | |
2510 | } | |
2511 | ||
2512 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2513 | route->connected); | |
2514 | if (ret) | |
2515 | goto err; | |
2516 | ||
2517 | return 0; | |
2b97eabc | 2518 | err: |
30a6a1a4 | 2519 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2520 | source, route->control, sink); |
2b97eabc RP |
2521 | return ret; |
2522 | } | |
105f1c28 | 2523 | |
efcc3c61 MB |
2524 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2525 | const struct snd_soc_dapm_route *route) | |
2526 | { | |
2527 | struct snd_soc_dapm_path *path, *p; | |
2528 | const char *sink; | |
2529 | const char *source; | |
2530 | char prefixed_sink[80]; | |
2531 | char prefixed_source[80]; | |
2532 | ||
2533 | if (route->control) { | |
2534 | dev_err(dapm->dev, | |
30a6a1a4 | 2535 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2536 | return -EINVAL; |
2537 | } | |
2538 | ||
2539 | if (dapm->codec && dapm->codec->name_prefix) { | |
2540 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2541 | dapm->codec->name_prefix, route->sink); | |
2542 | sink = prefixed_sink; | |
2543 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2544 | dapm->codec->name_prefix, route->source); | |
2545 | source = prefixed_source; | |
2546 | } else { | |
2547 | sink = route->sink; | |
2548 | source = route->source; | |
2549 | } | |
2550 | ||
2551 | path = NULL; | |
2552 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2553 | if (strcmp(p->source->name, source) != 0) | |
2554 | continue; | |
2555 | if (strcmp(p->sink->name, sink) != 0) | |
2556 | continue; | |
2557 | path = p; | |
2558 | break; | |
2559 | } | |
2560 | ||
2561 | if (path) { | |
2562 | dapm_mark_dirty(path->source, "Route removed"); | |
2563 | dapm_mark_dirty(path->sink, "Route removed"); | |
2564 | ||
8872293f | 2565 | dapm_free_path(path); |
efcc3c61 | 2566 | } else { |
30a6a1a4 | 2567 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2568 | source, sink); |
2569 | } | |
2570 | ||
2571 | return 0; | |
2572 | } | |
2573 | ||
105f1c28 MB |
2574 | /** |
2575 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2576 | * @dapm: DAPM context |
105f1c28 MB |
2577 | * @route: audio routes |
2578 | * @num: number of routes | |
2579 | * | |
2580 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2581 | * the widget receiving the audio signal, whilst the source is the sender | |
2582 | * of the audio signal. | |
2583 | * | |
2584 | * Returns 0 for success else error. On error all resources can be freed | |
2585 | * with a call to snd_soc_card_free(). | |
2586 | */ | |
ce6120cc | 2587 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2588 | const struct snd_soc_dapm_route *route, int num) |
2589 | { | |
62d4a4b9 | 2590 | int i, r, ret = 0; |
105f1c28 | 2591 | |
a73fb2df | 2592 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2593 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2594 | r = snd_soc_dapm_add_route(dapm, route); |
2595 | if (r < 0) { | |
30a6a1a4 LG |
2596 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2597 | route->source, | |
2598 | route->control ? route->control : "direct", | |
2599 | route->sink); | |
62d4a4b9 | 2600 | ret = r; |
105f1c28 MB |
2601 | } |
2602 | route++; | |
2603 | } | |
a73fb2df | 2604 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2605 | |
60884c27 | 2606 | return ret; |
105f1c28 MB |
2607 | } |
2608 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2609 | ||
efcc3c61 MB |
2610 | /** |
2611 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2612 | * @dapm: DAPM context | |
2613 | * @route: audio routes | |
2614 | * @num: number of routes | |
2615 | * | |
2616 | * Removes routes from the DAPM context. | |
2617 | */ | |
2618 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2619 | const struct snd_soc_dapm_route *route, int num) | |
2620 | { | |
2621 | int i, ret = 0; | |
2622 | ||
2623 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2624 | for (i = 0; i < num; i++) { | |
2625 | snd_soc_dapm_del_route(dapm, route); | |
2626 | route++; | |
2627 | } | |
2628 | mutex_unlock(&dapm->card->dapm_mutex); | |
2629 | ||
2630 | return ret; | |
2631 | } | |
2632 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2633 | ||
bf3a9e13 MB |
2634 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2635 | const struct snd_soc_dapm_route *route) | |
2636 | { | |
2637 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2638 | route->source, | |
2639 | true); | |
2640 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2641 | route->sink, | |
2642 | true); | |
2643 | struct snd_soc_dapm_path *path; | |
2644 | int count = 0; | |
2645 | ||
2646 | if (!source) { | |
30a6a1a4 | 2647 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2648 | route->source); |
2649 | return -ENODEV; | |
2650 | } | |
2651 | ||
2652 | if (!sink) { | |
30a6a1a4 | 2653 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2654 | route->sink); |
2655 | return -ENODEV; | |
2656 | } | |
2657 | ||
2658 | if (route->control || route->connected) | |
30a6a1a4 | 2659 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2660 | route->source, route->sink); |
2661 | ||
2662 | list_for_each_entry(path, &source->sinks, list_source) { | |
2663 | if (path->sink == sink) { | |
2664 | path->weak = 1; | |
2665 | count++; | |
2666 | } | |
2667 | } | |
2668 | ||
2669 | if (count == 0) | |
30a6a1a4 | 2670 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2671 | route->source, route->sink); |
2672 | if (count > 1) | |
30a6a1a4 | 2673 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2674 | count, route->source, route->sink); |
2675 | ||
2676 | return 0; | |
2677 | } | |
2678 | ||
2679 | /** | |
2680 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2681 | * @dapm: DAPM context | |
2682 | * @route: audio routes | |
2683 | * @num: number of routes | |
2684 | * | |
2685 | * Mark existing routes matching those specified in the passed array | |
2686 | * as being weak, meaning that they are ignored for the purpose of | |
2687 | * power decisions. The main intended use case is for sidetone paths | |
2688 | * which couple audio between other independent paths if they are both | |
2689 | * active in order to make the combination work better at the user | |
2690 | * level but which aren't intended to be "used". | |
2691 | * | |
2692 | * Note that CODEC drivers should not use this as sidetone type paths | |
2693 | * can frequently also be used as bypass paths. | |
2694 | */ | |
2695 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2696 | const struct snd_soc_dapm_route *route, int num) | |
2697 | { | |
2698 | int i, err; | |
2699 | int ret = 0; | |
2700 | ||
a73fb2df | 2701 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2702 | for (i = 0; i < num; i++) { |
2703 | err = snd_soc_dapm_weak_route(dapm, route); | |
2704 | if (err) | |
2705 | ret = err; | |
2706 | route++; | |
2707 | } | |
a73fb2df | 2708 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2709 | |
2710 | return ret; | |
2711 | } | |
2712 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2713 | ||
2b97eabc RP |
2714 | /** |
2715 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2716 | * @dapm: DAPM context |
2b97eabc RP |
2717 | * |
2718 | * Checks the codec for any new dapm widgets and creates them if found. | |
2719 | * | |
2720 | * Returns 0 for success. | |
2721 | */ | |
824ef826 | 2722 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2723 | { |
2724 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2725 | unsigned int val; |
2b97eabc | 2726 | |
95dd5cd6 | 2727 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2728 | |
95dd5cd6 | 2729 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2730 | { |
2731 | if (w->new) | |
2732 | continue; | |
2733 | ||
fad59888 SW |
2734 | if (w->num_kcontrols) { |
2735 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2736 | sizeof(struct snd_kcontrol *), | |
2737 | GFP_KERNEL); | |
a73fb2df | 2738 | if (!w->kcontrols) { |
95dd5cd6 | 2739 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2740 | return -ENOMEM; |
a73fb2df | 2741 | } |
fad59888 SW |
2742 | } |
2743 | ||
2b97eabc RP |
2744 | switch(w->id) { |
2745 | case snd_soc_dapm_switch: | |
2746 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2747 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2748 | dapm_new_mixer(w); |
2b97eabc RP |
2749 | break; |
2750 | case snd_soc_dapm_mux: | |
24ff33ac | 2751 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2752 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2753 | dapm_new_mux(w); |
2b97eabc | 2754 | break; |
2b97eabc | 2755 | case snd_soc_dapm_pga: |
d88429a6 | 2756 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2757 | dapm_new_pga(w); |
2b97eabc | 2758 | break; |
7ca3a18b | 2759 | default: |
2b97eabc RP |
2760 | break; |
2761 | } | |
b66a70d5 MB |
2762 | |
2763 | /* Read the initial power state from the device */ | |
2764 | if (w->reg >= 0) { | |
de9ba98b LPC |
2765 | val = soc_widget_read(w, w->reg) >> w->shift; |
2766 | val &= w->mask; | |
2767 | if (val == w->on_val) | |
b66a70d5 MB |
2768 | w->power = 1; |
2769 | } | |
2770 | ||
2b97eabc | 2771 | w->new = 1; |
d5d1e0be | 2772 | |
7508b12a | 2773 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2774 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2775 | } |
2776 | ||
95dd5cd6 LPC |
2777 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2778 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2779 | return 0; |
2780 | } | |
2781 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2782 | ||
2783 | /** | |
2784 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2785 | * @kcontrol: mixer control | |
ac11a2b3 | 2786 | * @ucontrol: control element information |
2b97eabc RP |
2787 | * |
2788 | * Callback to get the value of a dapm mixer control. | |
2789 | * | |
2790 | * Returns 0 for success. | |
2791 | */ | |
2792 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2793 | struct snd_ctl_elem_value *ucontrol) | |
2794 | { | |
eee5d7f9 | 2795 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2796 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2797 | struct soc_mixer_control *mc = |
2798 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2799 | int reg = mc->reg; |
815ecf8d | 2800 | unsigned int shift = mc->shift; |
4eaa9819 | 2801 | int max = mc->max; |
815ecf8d | 2802 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2803 | unsigned int invert = mc->invert; |
57295073 | 2804 | unsigned int val; |
da602ab8 BT |
2805 | |
2806 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2807 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2808 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2809 | kcontrol->id.name); |
2b97eabc | 2810 | |
57295073 | 2811 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
249ce138 | 2812 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) |
57295073 LPC |
2813 | val = (snd_soc_read(codec, reg) >> shift) & mask; |
2814 | else | |
2815 | val = dapm_kcontrol_get_value(kcontrol); | |
2816 | mutex_unlock(&card->dapm_mutex); | |
2817 | ||
da602ab8 | 2818 | if (invert) |
57295073 LPC |
2819 | ucontrol->value.integer.value[0] = max - val; |
2820 | else | |
2821 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2822 | |
2823 | return 0; | |
2824 | } | |
2825 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2826 | ||
2827 | /** | |
2828 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2829 | * @kcontrol: mixer control | |
ac11a2b3 | 2830 | * @ucontrol: control element information |
2b97eabc RP |
2831 | * |
2832 | * Callback to set the value of a dapm mixer control. | |
2833 | * | |
2834 | * Returns 0 for success. | |
2835 | */ | |
2836 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2837 | struct snd_ctl_elem_value *ucontrol) | |
2838 | { | |
eee5d7f9 | 2839 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2840 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2841 | struct soc_mixer_control *mc = |
2842 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2843 | int reg = mc->reg; |
815ecf8d | 2844 | unsigned int shift = mc->shift; |
4eaa9819 | 2845 | int max = mc->max; |
815ecf8d JS |
2846 | unsigned int mask = (1 << fls(max)) - 1; |
2847 | unsigned int invert = mc->invert; | |
e9cf7049 | 2848 | unsigned int val; |
97404f2e MB |
2849 | int connect, change; |
2850 | struct snd_soc_dapm_update update; | |
2b97eabc | 2851 | |
da602ab8 | 2852 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2853 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2854 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2855 | kcontrol->id.name); |
2856 | ||
2b97eabc | 2857 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2858 | connect = !!val; |
2b97eabc RP |
2859 | |
2860 | if (invert) | |
a7a4ac86 | 2861 | val = max - val; |
2b97eabc | 2862 | |
3cd04343 | 2863 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2864 | |
249ce138 | 2865 | change = dapm_kcontrol_set_value(kcontrol, val); |
57295073 | 2866 | |
249ce138 LPC |
2867 | if (reg != SND_SOC_NOPM) { |
2868 | mask = mask << shift; | |
2869 | val = val << shift; | |
2870 | ||
2871 | change = snd_soc_test_bits(codec, reg, mask, val); | |
2872 | } | |
57295073 | 2873 | |
97404f2e | 2874 | if (change) { |
249ce138 LPC |
2875 | if (reg != SND_SOC_NOPM) { |
2876 | update.kcontrol = kcontrol; | |
2877 | update.reg = reg; | |
2878 | update.mask = mask; | |
2879 | update.val = val; | |
97404f2e | 2880 | |
249ce138 LPC |
2881 | card->update = &update; |
2882 | } | |
97404f2e | 2883 | |
95dd5cd6 | 2884 | soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2885 | |
564c6504 | 2886 | card->update = NULL; |
283375ce MB |
2887 | } |
2888 | ||
a73fb2df | 2889 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2890 | return change; |
2b97eabc RP |
2891 | } |
2892 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2893 | ||
2894 | /** | |
2895 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2896 | * @kcontrol: mixer control | |
ac11a2b3 | 2897 | * @ucontrol: control element information |
2b97eabc RP |
2898 | * |
2899 | * Callback to get the value of a dapm enumerated double mixer control. | |
2900 | * | |
2901 | * Returns 0 for success. | |
2902 | */ | |
2903 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2904 | struct snd_ctl_elem_value *ucontrol) | |
2905 | { | |
eee5d7f9 | 2906 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2907 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2908 | unsigned int val; |
2b97eabc | 2909 | |
eee5d7f9 | 2910 | val = snd_soc_read(codec, e->reg); |
86767b7d | 2911 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2912 | if (e->shift_l != e->shift_r) |
2913 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2914 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2915 | |
2916 | return 0; | |
2917 | } | |
2918 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2919 | ||
2920 | /** | |
2921 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2922 | * @kcontrol: mixer control | |
ac11a2b3 | 2923 | * @ucontrol: control element information |
2b97eabc RP |
2924 | * |
2925 | * Callback to set the value of a dapm enumerated double mixer control. | |
2926 | * | |
2927 | * Returns 0 for success. | |
2928 | */ | |
2929 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2930 | struct snd_ctl_elem_value *ucontrol) | |
2931 | { | |
cf7c1de2 | 2932 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2933 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2934 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2935 | unsigned int val, mux, change; |
86767b7d | 2936 | unsigned int mask; |
97404f2e | 2937 | struct snd_soc_dapm_update update; |
2b97eabc | 2938 | |
f8ba0b7b | 2939 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2940 | return -EINVAL; |
2941 | mux = ucontrol->value.enumerated.item[0]; | |
2942 | val = mux << e->shift_l; | |
86767b7d | 2943 | mask = e->mask << e->shift_l; |
2b97eabc | 2944 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2945 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2946 | return -EINVAL; |
2947 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2948 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2949 | } |
2950 | ||
3cd04343 | 2951 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2952 | |
eee5d7f9 | 2953 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2954 | if (change) { |
ce6cfaf1 LPC |
2955 | update.kcontrol = kcontrol; |
2956 | update.reg = e->reg; | |
2957 | update.mask = mask; | |
2958 | update.val = val; | |
564c6504 | 2959 | card->update = &update; |
1642e3d4 | 2960 | |
95dd5cd6 | 2961 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
1642e3d4 | 2962 | |
564c6504 | 2963 | card->update = NULL; |
fafd2176 | 2964 | } |
2b97eabc | 2965 | |
a73fb2df | 2966 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2967 | return change; |
2b97eabc RP |
2968 | } |
2969 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2970 | ||
d2b247a8 MB |
2971 | /** |
2972 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2973 | * @kcontrol: mixer control | |
2974 | * @ucontrol: control element information | |
2975 | * | |
2976 | * Returns 0 for success. | |
2977 | */ | |
2978 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2979 | struct snd_ctl_elem_value *ucontrol) | |
2980 | { | |
cf7c1de2 | 2981 | ucontrol->value.enumerated.item[0] = dapm_kcontrol_get_value(kcontrol); |
d2b247a8 MB |
2982 | return 0; |
2983 | } | |
2984 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2985 | ||
2986 | /** | |
2987 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2988 | * @kcontrol: mixer control | |
2989 | * @ucontrol: control element information | |
2990 | * | |
2991 | * Returns 0 for success. | |
2992 | */ | |
2993 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2994 | struct snd_ctl_elem_value *ucontrol) | |
2995 | { | |
cf7c1de2 | 2996 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2997 | struct snd_soc_card *card = codec->card; |
cf7c1de2 | 2998 | unsigned int value; |
d2b247a8 MB |
2999 | struct soc_enum *e = |
3000 | (struct soc_enum *)kcontrol->private_value; | |
3001 | int change; | |
d2b247a8 MB |
3002 | |
3003 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
3004 | return -EINVAL; | |
3005 | ||
3cd04343 | 3006 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 | 3007 | |
cf7c1de2 LPC |
3008 | value = ucontrol->value.enumerated.item[0]; |
3009 | change = dapm_kcontrol_set_value(kcontrol, value); | |
3010 | if (change) | |
3011 | soc_dapm_mux_update_power(card, kcontrol, value, e); | |
d2b247a8 | 3012 | |
a73fb2df | 3013 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 3014 | return change; |
d2b247a8 MB |
3015 | } |
3016 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
3017 | ||
2e72f8e3 PU |
3018 | /** |
3019 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
3020 | * callback | |
3021 | * @kcontrol: mixer control | |
3022 | * @ucontrol: control element information | |
3023 | * | |
3024 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
3025 | * | |
3026 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3027 | * used for handling bitfield coded enumeration for example. | |
3028 | * | |
3029 | * Returns 0 for success. | |
3030 | */ | |
3031 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
3032 | struct snd_ctl_elem_value *ucontrol) | |
3033 | { | |
eee5d7f9 | 3034 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
74155556 | 3035 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 3036 | unsigned int reg_val, val, mux; |
2e72f8e3 | 3037 | |
eee5d7f9 | 3038 | reg_val = snd_soc_read(codec, e->reg); |
2e72f8e3 PU |
3039 | val = (reg_val >> e->shift_l) & e->mask; |
3040 | for (mux = 0; mux < e->max; mux++) { | |
3041 | if (val == e->values[mux]) | |
3042 | break; | |
3043 | } | |
3044 | ucontrol->value.enumerated.item[0] = mux; | |
3045 | if (e->shift_l != e->shift_r) { | |
3046 | val = (reg_val >> e->shift_r) & e->mask; | |
3047 | for (mux = 0; mux < e->max; mux++) { | |
3048 | if (val == e->values[mux]) | |
3049 | break; | |
3050 | } | |
3051 | ucontrol->value.enumerated.item[1] = mux; | |
3052 | } | |
3053 | ||
3054 | return 0; | |
3055 | } | |
3056 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
3057 | ||
3058 | /** | |
3059 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
3060 | * callback | |
3061 | * @kcontrol: mixer control | |
3062 | * @ucontrol: control element information | |
3063 | * | |
3064 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
3065 | * | |
3066 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3067 | * used for handling bitfield coded enumeration for example. | |
3068 | * | |
3069 | * Returns 0 for success. | |
3070 | */ | |
3071 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
3072 | struct snd_ctl_elem_value *ucontrol) | |
3073 | { | |
cf7c1de2 | 3074 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3075 | struct snd_soc_card *card = codec->card; |
74155556 | 3076 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 3077 | unsigned int val, mux, change; |
46f5822f | 3078 | unsigned int mask; |
97404f2e | 3079 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
3080 | |
3081 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
3082 | return -EINVAL; | |
3083 | mux = ucontrol->value.enumerated.item[0]; | |
3084 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
3085 | mask = e->mask << e->shift_l; | |
3086 | if (e->shift_l != e->shift_r) { | |
3087 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
3088 | return -EINVAL; | |
3089 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
3090 | mask |= e->mask << e->shift_r; | |
3091 | } | |
3092 | ||
3cd04343 | 3093 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3094 | |
eee5d7f9 | 3095 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 3096 | if (change) { |
ce6cfaf1 LPC |
3097 | update.kcontrol = kcontrol; |
3098 | update.reg = e->reg; | |
3099 | update.mask = mask; | |
3100 | update.val = val; | |
564c6504 | 3101 | card->update = &update; |
1642e3d4 | 3102 | |
95dd5cd6 | 3103 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
fafd2176 | 3104 | |
564c6504 | 3105 | card->update = NULL; |
fafd2176 | 3106 | } |
2e72f8e3 | 3107 | |
a73fb2df | 3108 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 3109 | return change; |
2e72f8e3 PU |
3110 | } |
3111 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
3112 | ||
8b37dbd2 MB |
3113 | /** |
3114 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3115 | * | |
3116 | * @kcontrol: mixer control | |
3117 | * @uinfo: control element information | |
3118 | * | |
3119 | * Callback to provide information about a pin switch control. | |
3120 | */ | |
3121 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3122 | struct snd_ctl_elem_info *uinfo) | |
3123 | { | |
3124 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3125 | uinfo->count = 1; | |
3126 | uinfo->value.integer.min = 0; | |
3127 | uinfo->value.integer.max = 1; | |
3128 | ||
3129 | return 0; | |
3130 | } | |
3131 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3132 | ||
3133 | /** | |
3134 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3135 | * | |
3136 | * @kcontrol: mixer control | |
3137 | * @ucontrol: Value | |
3138 | */ | |
3139 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3140 | struct snd_ctl_elem_value *ucontrol) | |
3141 | { | |
48a8c394 | 3142 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3143 | const char *pin = (const char *)kcontrol->private_value; |
3144 | ||
3cd04343 | 3145 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3146 | |
3147 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3148 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3149 | |
a73fb2df | 3150 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3151 | |
3152 | return 0; | |
3153 | } | |
3154 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3155 | ||
3156 | /** | |
3157 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3158 | * | |
3159 | * @kcontrol: mixer control | |
3160 | * @ucontrol: Value | |
3161 | */ | |
3162 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3163 | struct snd_ctl_elem_value *ucontrol) | |
3164 | { | |
48a8c394 | 3165 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3166 | const char *pin = (const char *)kcontrol->private_value; |
3167 | ||
3cd04343 | 3168 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3169 | |
3170 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3171 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3172 | else |
48a8c394 | 3173 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3174 | |
a73fb2df | 3175 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3176 | |
a73fb2df | 3177 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3178 | return 0; |
3179 | } | |
3180 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3181 | ||
5ba06fc9 MB |
3182 | static struct snd_soc_dapm_widget * |
3183 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3184 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3185 | { |
3186 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3187 | int ret; |
2b97eabc RP |
3188 | |
3189 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3190 | return NULL; |
2b97eabc | 3191 | |
62ea874a MB |
3192 | switch (w->id) { |
3193 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3194 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3195 | if (IS_ERR(w->regulator)) { | |
3196 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3197 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3198 | w->name, ret); |
5ba06fc9 | 3199 | return NULL; |
62ea874a | 3200 | } |
8784c77a | 3201 | |
de9ba98b | 3202 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3203 | ret = regulator_allow_bypass(w->regulator, true); |
3204 | if (ret != 0) | |
3205 | dev_warn(w->dapm->dev, | |
3206 | "ASoC: Failed to unbypass %s: %d\n", | |
3207 | w->name, ret); | |
3208 | } | |
62ea874a | 3209 | break; |
d7e7eb91 | 3210 | case snd_soc_dapm_clock_supply: |
165961ef | 3211 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3212 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3213 | if (IS_ERR(w->clk)) { |
3214 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3215 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3216 | w->name, ret); |
3217 | return NULL; | |
3218 | } | |
ec02995a MB |
3219 | #else |
3220 | return NULL; | |
3221 | #endif | |
d7e7eb91 | 3222 | break; |
62ea874a MB |
3223 | default: |
3224 | break; | |
3225 | } | |
2b97eabc | 3226 | |
88e8b9a8 | 3227 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3228 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3229 | dapm->codec->name_prefix, widget->name); | |
3230 | else | |
3231 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3232 | ||
ead9b919 JN |
3233 | if (w->name == NULL) { |
3234 | kfree(w); | |
5ba06fc9 | 3235 | return NULL; |
ead9b919 | 3236 | } |
ead9b919 | 3237 | |
7ca3a18b MB |
3238 | switch (w->id) { |
3239 | case snd_soc_dapm_switch: | |
3240 | case snd_soc_dapm_mixer: | |
3241 | case snd_soc_dapm_mixer_named_ctl: | |
3242 | w->power_check = dapm_generic_check_power; | |
3243 | break; | |
3244 | case snd_soc_dapm_mux: | |
3245 | case snd_soc_dapm_virt_mux: | |
3246 | case snd_soc_dapm_value_mux: | |
3247 | w->power_check = dapm_generic_check_power; | |
3248 | break; | |
4616274d | 3249 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3250 | w->power_check = dapm_adc_check_power; |
3251 | break; | |
4616274d | 3252 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3253 | w->power_check = dapm_dac_check_power; |
3254 | break; | |
63c69a6e MB |
3255 | case snd_soc_dapm_adc: |
3256 | case snd_soc_dapm_aif_out: | |
3257 | case snd_soc_dapm_dac: | |
3258 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3259 | case snd_soc_dapm_pga: |
3260 | case snd_soc_dapm_out_drv: | |
3261 | case snd_soc_dapm_input: | |
3262 | case snd_soc_dapm_output: | |
3263 | case snd_soc_dapm_micbias: | |
3264 | case snd_soc_dapm_spk: | |
3265 | case snd_soc_dapm_hp: | |
3266 | case snd_soc_dapm_mic: | |
3267 | case snd_soc_dapm_line: | |
c74184ed | 3268 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3269 | w->power_check = dapm_generic_check_power; |
3270 | break; | |
3271 | case snd_soc_dapm_supply: | |
62ea874a | 3272 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3273 | case snd_soc_dapm_clock_supply: |
57295073 | 3274 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3275 | w->power_check = dapm_supply_check_power; |
3276 | break; | |
3277 | default: | |
3278 | w->power_check = dapm_always_on_check_power; | |
3279 | break; | |
3280 | } | |
3281 | ||
ce6120cc LG |
3282 | w->dapm = dapm; |
3283 | w->codec = dapm->codec; | |
b7950641 | 3284 | w->platform = dapm->platform; |
2b97eabc RP |
3285 | INIT_LIST_HEAD(&w->sources); |
3286 | INIT_LIST_HEAD(&w->sinks); | |
3287 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3288 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3289 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3290 | |
3291 | /* machine layer set ups unconnected pins and insertions */ | |
3292 | w->connected = 1; | |
5ba06fc9 | 3293 | return w; |
2b97eabc | 3294 | } |
2b97eabc | 3295 | |
4ba1327a MB |
3296 | /** |
3297 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3298 | * @dapm: DAPM context |
4ba1327a MB |
3299 | * @widget: widget array |
3300 | * @num: number of widgets | |
3301 | * | |
3302 | * Creates new DAPM controls based upon the templates. | |
3303 | * | |
3304 | * Returns 0 for success else error. | |
3305 | */ | |
ce6120cc | 3306 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3307 | const struct snd_soc_dapm_widget *widget, |
3308 | int num) | |
3309 | { | |
5ba06fc9 MB |
3310 | struct snd_soc_dapm_widget *w; |
3311 | int i; | |
60884c27 | 3312 | int ret = 0; |
4ba1327a | 3313 | |
a73fb2df | 3314 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3315 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3316 | w = snd_soc_dapm_new_control(dapm, widget); |
3317 | if (!w) { | |
f7d41ae8 | 3318 | dev_err(dapm->dev, |
5ba06fc9 MB |
3319 | "ASoC: Failed to create DAPM control %s\n", |
3320 | widget->name); | |
60884c27 DC |
3321 | ret = -ENOMEM; |
3322 | break; | |
b8b33cb5 | 3323 | } |
4ba1327a MB |
3324 | widget++; |
3325 | } | |
a73fb2df | 3326 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3327 | return ret; |
4ba1327a MB |
3328 | } |
3329 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3330 | ||
c74184ed MB |
3331 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3332 | struct snd_kcontrol *kcontrol, int event) | |
3333 | { | |
3334 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3335 | struct snd_soc_dai *source, *sink; | |
3336 | const struct snd_soc_pcm_stream *config = w->params; | |
3337 | struct snd_pcm_substream substream; | |
9747cec2 | 3338 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3339 | u64 fmt; |
3340 | int ret; | |
3341 | ||
3342 | BUG_ON(!config); | |
3343 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3344 | ||
3345 | /* We only support a single source and sink, pick the first */ | |
3346 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3347 | list_sink); | |
3348 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3349 | list_source); | |
3350 | ||
3351 | BUG_ON(!source_p || !sink_p); | |
3352 | BUG_ON(!sink_p->source || !source_p->sink); | |
3353 | BUG_ON(!source_p->source || !sink_p->sink); | |
3354 | ||
3355 | source = source_p->source->priv; | |
3356 | sink = sink_p->sink->priv; | |
3357 | ||
3358 | /* Be a little careful as we don't want to overflow the mask array */ | |
3359 | if (config->formats) { | |
3360 | fmt = ffs(config->formats) - 1; | |
3361 | } else { | |
30a6a1a4 | 3362 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3363 | config->formats); |
3364 | fmt = 0; | |
3365 | } | |
3366 | ||
3367 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3368 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3369 | if (!params) { | |
3370 | ret = -ENOMEM; | |
3371 | goto out; | |
3372 | } | |
3373 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3374 | |
9747cec2 | 3375 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3376 | config->rate_min; |
9747cec2 | 3377 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3378 | config->rate_max; |
3379 | ||
9747cec2 | 3380 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3381 | = config->channels_min; |
9747cec2 | 3382 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3383 | = config->channels_max; |
3384 | ||
3385 | memset(&substream, 0, sizeof(substream)); | |
3386 | ||
3387 | switch (event) { | |
3388 | case SND_SOC_DAPM_PRE_PMU: | |
3389 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3390 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3391 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3392 | params, source); |
c74184ed MB |
3393 | if (ret != 0) { |
3394 | dev_err(source->dev, | |
30a6a1a4 | 3395 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3396 | goto out; |
c74184ed MB |
3397 | } |
3398 | } | |
3399 | ||
3400 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3401 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3402 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3403 | sink); |
3404 | if (ret != 0) { | |
3405 | dev_err(sink->dev, | |
30a6a1a4 | 3406 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3407 | goto out; |
c74184ed MB |
3408 | } |
3409 | } | |
3410 | break; | |
3411 | ||
3412 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3413 | ret = snd_soc_dai_digital_mute(sink, 0, |
3414 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3415 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3416 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3417 | ret = 0; |
c74184ed MB |
3418 | break; |
3419 | ||
3420 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3421 | ret = snd_soc_dai_digital_mute(sink, 1, |
3422 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3423 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3424 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3425 | ret = 0; |
c74184ed MB |
3426 | break; |
3427 | ||
3428 | default: | |
3429 | BUG(); | |
3430 | return -EINVAL; | |
3431 | } | |
3432 | ||
9747cec2 MB |
3433 | out: |
3434 | kfree(params); | |
3435 | return ret; | |
c74184ed MB |
3436 | } |
3437 | ||
3438 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3439 | const struct snd_soc_pcm_stream *params, | |
3440 | struct snd_soc_dapm_widget *source, | |
3441 | struct snd_soc_dapm_widget *sink) | |
3442 | { | |
3443 | struct snd_soc_dapm_route routes[2]; | |
3444 | struct snd_soc_dapm_widget template; | |
3445 | struct snd_soc_dapm_widget *w; | |
3446 | size_t len; | |
3447 | char *link_name; | |
3448 | ||
3449 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3450 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3451 | if (!link_name) | |
3452 | return -ENOMEM; | |
3453 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3454 | ||
3455 | memset(&template, 0, sizeof(template)); | |
3456 | template.reg = SND_SOC_NOPM; | |
3457 | template.id = snd_soc_dapm_dai_link; | |
3458 | template.name = link_name; | |
3459 | template.event = snd_soc_dai_link_event; | |
3460 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3461 | SND_SOC_DAPM_PRE_PMD; | |
3462 | ||
30a6a1a4 | 3463 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3464 | |
3465 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3466 | if (!w) { | |
30a6a1a4 | 3467 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3468 | link_name); |
3469 | return -ENOMEM; | |
3470 | } | |
3471 | ||
3472 | w->params = params; | |
3473 | ||
3474 | memset(&routes, 0, sizeof(routes)); | |
3475 | ||
3476 | routes[0].source = source->name; | |
3477 | routes[0].sink = link_name; | |
3478 | routes[1].source = link_name; | |
3479 | routes[1].sink = sink->name; | |
3480 | ||
3481 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3482 | ARRAY_SIZE(routes)); | |
3483 | } | |
3484 | ||
888df395 MB |
3485 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3486 | struct snd_soc_dai *dai) | |
2b97eabc | 3487 | { |
888df395 | 3488 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3489 | struct snd_soc_dapm_widget *w; |
3490 | ||
888df395 MB |
3491 | WARN_ON(dapm->dev != dai->dev); |
3492 | ||
3493 | memset(&template, 0, sizeof(template)); | |
3494 | template.reg = SND_SOC_NOPM; | |
3495 | ||
3496 | if (dai->driver->playback.stream_name) { | |
4616274d | 3497 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3498 | template.name = dai->driver->playback.stream_name; |
3499 | template.sname = dai->driver->playback.stream_name; | |
3500 | ||
30a6a1a4 | 3501 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3502 | template.name); |
3503 | ||
3504 | w = snd_soc_dapm_new_control(dapm, &template); | |
3505 | if (!w) { | |
30a6a1a4 | 3506 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3507 | dai->driver->playback.stream_name); |
298402a3 | 3508 | return -ENOMEM; |
888df395 MB |
3509 | } |
3510 | ||
3511 | w->priv = dai; | |
3512 | dai->playback_widget = w; | |
3513 | } | |
3514 | ||
3515 | if (dai->driver->capture.stream_name) { | |
4616274d | 3516 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3517 | template.name = dai->driver->capture.stream_name; |
3518 | template.sname = dai->driver->capture.stream_name; | |
3519 | ||
30a6a1a4 | 3520 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3521 | template.name); |
3522 | ||
3523 | w = snd_soc_dapm_new_control(dapm, &template); | |
3524 | if (!w) { | |
30a6a1a4 | 3525 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3526 | dai->driver->capture.stream_name); |
298402a3 | 3527 | return -ENOMEM; |
888df395 MB |
3528 | } |
3529 | ||
3530 | w->priv = dai; | |
3531 | dai->capture_widget = w; | |
3532 | } | |
3533 | ||
3534 | return 0; | |
3535 | } | |
3536 | ||
3537 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3538 | { | |
3539 | struct snd_soc_dapm_widget *dai_w, *w; | |
3540 | struct snd_soc_dai *dai; | |
888df395 MB |
3541 | |
3542 | /* For each DAI widget... */ | |
3543 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3544 | switch (dai_w->id) { |
3545 | case snd_soc_dapm_dai_in: | |
3546 | case snd_soc_dapm_dai_out: | |
3547 | break; | |
3548 | default: | |
2b97eabc | 3549 | continue; |
4616274d | 3550 | } |
888df395 MB |
3551 | |
3552 | dai = dai_w->priv; | |
3553 | ||
3554 | /* ...find all widgets with the same stream and link them */ | |
3555 | list_for_each_entry(w, &card->widgets, list) { | |
3556 | if (w->dapm != dai_w->dapm) | |
3557 | continue; | |
3558 | ||
4616274d MB |
3559 | switch (w->id) { |
3560 | case snd_soc_dapm_dai_in: | |
3561 | case snd_soc_dapm_dai_out: | |
888df395 | 3562 | continue; |
4616274d MB |
3563 | default: |
3564 | break; | |
3565 | } | |
888df395 | 3566 | |
19c2c5f5 | 3567 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3568 | continue; |
3569 | ||
3570 | if (dai->driver->playback.stream_name && | |
3571 | strstr(w->sname, | |
3572 | dai->driver->playback.stream_name)) { | |
888df395 | 3573 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3574 | dai->playback_widget->name, w->name); |
888df395 | 3575 | |
2553628e LPC |
3576 | snd_soc_dapm_add_path(w->dapm, |
3577 | dai->playback_widget, w, NULL, NULL); | |
888df395 MB |
3578 | } |
3579 | ||
3580 | if (dai->driver->capture.stream_name && | |
3581 | strstr(w->sname, | |
3582 | dai->driver->capture.stream_name)) { | |
888df395 | 3583 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3584 | w->name, dai->capture_widget->name); |
888df395 | 3585 | |
2553628e LPC |
3586 | snd_soc_dapm_add_path(w->dapm, w, |
3587 | dai->capture_widget, NULL, NULL); | |
2b97eabc RP |
3588 | } |
3589 | } | |
3590 | } | |
2b97eabc | 3591 | |
888df395 MB |
3592 | return 0; |
3593 | } | |
64a648c2 | 3594 | |
d9b0951b LG |
3595 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3596 | int event) | |
2b97eabc | 3597 | { |
7bd3a6f3 | 3598 | |
d9b0951b LG |
3599 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3600 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3601 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3602 | |
d9b0951b LG |
3603 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3604 | w_cpu = cpu_dai->playback_widget; | |
3605 | w_codec = codec_dai->playback_widget; | |
3606 | } else { | |
3607 | w_cpu = cpu_dai->capture_widget; | |
3608 | w_codec = codec_dai->capture_widget; | |
3609 | } | |
2b97eabc | 3610 | |
d9b0951b | 3611 | if (w_cpu) { |
fe360685 | 3612 | |
d9b0951b LG |
3613 | dapm_mark_dirty(w_cpu, "stream event"); |
3614 | ||
3615 | switch (event) { | |
3616 | case SND_SOC_DAPM_STREAM_START: | |
3617 | w_cpu->active = 1; | |
3618 | break; | |
3619 | case SND_SOC_DAPM_STREAM_STOP: | |
3620 | w_cpu->active = 0; | |
3621 | break; | |
3622 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3623 | case SND_SOC_DAPM_STREAM_RESUME: | |
3624 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3625 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3626 | break; | |
3627 | } | |
3628 | } | |
3629 | ||
3630 | if (w_codec) { | |
3631 | ||
3632 | dapm_mark_dirty(w_codec, "stream event"); | |
3633 | ||
3634 | switch (event) { | |
3635 | case SND_SOC_DAPM_STREAM_START: | |
3636 | w_codec->active = 1; | |
3637 | break; | |
3638 | case SND_SOC_DAPM_STREAM_STOP: | |
3639 | w_codec->active = 0; | |
3640 | break; | |
3641 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3642 | case SND_SOC_DAPM_STREAM_RESUME: | |
3643 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3644 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3645 | break; | |
3646 | } | |
2b97eabc | 3647 | } |
2b97eabc | 3648 | |
95dd5cd6 | 3649 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3650 | } |
3651 | ||
3652 | /** | |
3653 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3654 | * @rtd: PCM runtime data | |
3655 | * @stream: stream name | |
3656 | * @event: stream event | |
3657 | * | |
3658 | * Sends a stream event to the dapm core. The core then makes any | |
3659 | * necessary widget power changes. | |
3660 | * | |
3661 | * Returns 0 for success else error. | |
3662 | */ | |
d9b0951b LG |
3663 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3664 | int event) | |
ce6120cc | 3665 | { |
a73fb2df | 3666 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3667 | |
3cd04343 | 3668 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3669 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3670 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3671 | } |
2b97eabc RP |
3672 | |
3673 | /** | |
a5302181 | 3674 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3675 | * @dapm: DAPM context |
a5302181 | 3676 | * @pin: pin name |
2b97eabc | 3677 | * |
74b8f955 | 3678 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3679 | * a valid audio route and active audio stream. |
3680 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3681 | * do any widget power switching. | |
2b97eabc | 3682 | */ |
ce6120cc | 3683 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3684 | { |
ce6120cc | 3685 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3686 | } |
3687 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3688 | |
da34183e MB |
3689 | /** |
3690 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3691 | * @dapm: DAPM context |
da34183e MB |
3692 | * @pin: pin name |
3693 | * | |
3694 | * Enables input/output pin regardless of any other state. This is | |
3695 | * intended for use with microphone bias supplies used in microphone | |
3696 | * jack detection. | |
3697 | * | |
3698 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3699 | * do any widget power switching. | |
3700 | */ | |
ce6120cc LG |
3701 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3702 | const char *pin) | |
da34183e | 3703 | { |
91a5fca4 | 3704 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3705 | |
91a5fca4 | 3706 | if (!w) { |
30a6a1a4 | 3707 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3708 | return -EINVAL; |
0d86733c MB |
3709 | } |
3710 | ||
30a6a1a4 | 3711 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3712 | w->connected = 1; |
3713 | w->force = 1; | |
75c1f891 | 3714 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3715 | |
91a5fca4 | 3716 | return 0; |
da34183e MB |
3717 | } |
3718 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3719 | ||
a5302181 LG |
3720 | /** |
3721 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3722 | * @dapm: DAPM context |
a5302181 LG |
3723 | * @pin: pin name |
3724 | * | |
74b8f955 | 3725 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3726 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3727 | * do any widget power switching. | |
3728 | */ | |
ce6120cc LG |
3729 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3730 | const char *pin) | |
a5302181 | 3731 | { |
ce6120cc | 3732 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3733 | } |
a5302181 | 3734 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3735 | |
5817b52a MB |
3736 | /** |
3737 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3738 | * @dapm: DAPM context |
5817b52a MB |
3739 | * @pin: pin name |
3740 | * | |
3741 | * Marks the specified pin as being not connected, disabling it along | |
3742 | * any parent or child widgets. At present this is identical to | |
3743 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3744 | * additional things such as disabling controls which only affect | |
3745 | * paths through the pin. | |
3746 | * | |
3747 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3748 | * do any widget power switching. | |
3749 | */ | |
ce6120cc | 3750 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3751 | { |
ce6120cc | 3752 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3753 | } |
3754 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3755 | ||
eeec12bf | 3756 | /** |
a5302181 | 3757 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3758 | * @dapm: DAPM context |
a5302181 | 3759 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3760 | * |
a5302181 | 3761 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3762 | * |
a5302181 | 3763 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3764 | */ |
ce6120cc LG |
3765 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3766 | const char *pin) | |
eeec12bf | 3767 | { |
91a5fca4 | 3768 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3769 | |
91a5fca4 LPC |
3770 | if (w) |
3771 | return w->connected; | |
a68b38ad | 3772 | |
eeec12bf GG |
3773 | return 0; |
3774 | } | |
a5302181 | 3775 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3776 | |
1547aba9 MB |
3777 | /** |
3778 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3779 | * @dapm: DAPM context |
1547aba9 MB |
3780 | * @pin: audio signal pin endpoint (or start point) |
3781 | * | |
3782 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3783 | * system is disabled a path between two endpoints flagged as ignoring | |
3784 | * suspend will not be disabled. The path must already be enabled via | |
3785 | * normal means at suspend time, it will not be turned on if it was not | |
3786 | * already enabled. | |
3787 | */ | |
ce6120cc LG |
3788 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3789 | const char *pin) | |
1547aba9 | 3790 | { |
91a5fca4 | 3791 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3792 | |
91a5fca4 | 3793 | if (!w) { |
30a6a1a4 | 3794 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3795 | return -EINVAL; |
1547aba9 MB |
3796 | } |
3797 | ||
91a5fca4 LPC |
3798 | w->ignore_suspend = 1; |
3799 | ||
3800 | return 0; | |
1547aba9 MB |
3801 | } |
3802 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3803 | ||
1633281b SW |
3804 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3805 | struct snd_soc_dapm_widget *w) | |
3806 | { | |
3807 | struct snd_soc_dapm_path *p; | |
3808 | ||
3809 | list_for_each_entry(p, &card->paths, list) { | |
3810 | if ((p->source == w) || (p->sink == w)) { | |
3811 | dev_dbg(card->dev, | |
3812 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3813 | p->source->name, p->source->id, p->source->dapm, | |
3814 | p->sink->name, p->sink->id, p->sink->dapm); | |
3815 | ||
3816 | /* Connected to something other than the codec */ | |
3817 | if (p->source->dapm != p->sink->dapm) | |
3818 | return true; | |
3819 | /* | |
3820 | * Loopback connection from codec external pin to | |
3821 | * codec external pin | |
3822 | */ | |
3823 | if (p->sink->id == snd_soc_dapm_input) { | |
3824 | switch (p->source->id) { | |
3825 | case snd_soc_dapm_output: | |
3826 | case snd_soc_dapm_micbias: | |
3827 | return true; | |
3828 | default: | |
3829 | break; | |
3830 | } | |
3831 | } | |
3832 | } | |
3833 | } | |
3834 | ||
3835 | return false; | |
3836 | } | |
3837 | ||
3838 | /** | |
3839 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3840 | * @codec: The codec whose pins should be processed | |
3841 | * | |
3842 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3843 | * which are unused. Pins are used if they are connected externally to the | |
3844 | * codec, whether that be to some other device, or a loop-back connection to | |
3845 | * the codec itself. | |
3846 | */ | |
3847 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3848 | { | |
3849 | struct snd_soc_card *card = codec->card; | |
3850 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3851 | struct snd_soc_dapm_widget *w; | |
3852 | ||
30a6a1a4 | 3853 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3854 | &card->dapm, &codec->dapm); |
3855 | ||
3856 | list_for_each_entry(w, &card->widgets, list) { | |
3857 | if (w->dapm != dapm) | |
3858 | continue; | |
3859 | switch (w->id) { | |
3860 | case snd_soc_dapm_input: | |
3861 | case snd_soc_dapm_output: | |
3862 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3863 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3864 | w->name); |
3865 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3866 | dev_dbg(codec->dev, |
1633281b SW |
3867 | "... Not in map; disabling\n"); |
3868 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3869 | } | |
3870 | break; | |
3871 | default: | |
3872 | break; | |
3873 | } | |
3874 | } | |
3875 | } | |
3876 | ||
2b97eabc RP |
3877 | /** |
3878 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3879 | * @dapm: DAPM context |
2b97eabc RP |
3880 | * |
3881 | * Free all dapm widgets and resources. | |
3882 | */ | |
ce6120cc | 3883 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3884 | { |
ce6120cc | 3885 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3886 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3887 | dapm_free_widgets(dapm); |
7be31be8 | 3888 | list_del(&dapm->list); |
2b97eabc RP |
3889 | } |
3890 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3891 | ||
ce6120cc | 3892 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3893 | { |
01005a72 | 3894 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3895 | struct snd_soc_dapm_widget *w; |
3896 | LIST_HEAD(down_list); | |
3897 | int powerdown = 0; | |
3898 | ||
01005a72 LG |
3899 | mutex_lock(&card->dapm_mutex); |
3900 | ||
97c866de JN |
3901 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3902 | if (w->dapm != dapm) | |
3903 | continue; | |
51737470 | 3904 | if (w->power) { |
828a842f | 3905 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3906 | w->power = 0; |
51737470 MB |
3907 | powerdown = 1; |
3908 | } | |
3909 | } | |
3910 | ||
3911 | /* If there were no widgets to power down we're already in | |
3912 | * standby. | |
3913 | */ | |
3914 | if (powerdown) { | |
7679e42e MB |
3915 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3916 | snd_soc_dapm_set_bias_level(dapm, | |
3917 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3918 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3919 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3920 | snd_soc_dapm_set_bias_level(dapm, | |
3921 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3922 | } |
01005a72 LG |
3923 | |
3924 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3925 | } |
3926 | ||
3927 | /* | |
3928 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3929 | */ | |
3930 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3931 | { | |
3932 | struct snd_soc_codec *codec; | |
3933 | ||
445632ad | 3934 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3935 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3936 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3937 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3938 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3939 | } |
51737470 MB |
3940 | } |
3941 | ||
2b97eabc | 3942 | /* Module information */ |
d331124d | 3943 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3944 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3945 | MODULE_LICENSE("GPL"); |