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; |
815ecf8d JS |
502 | unsigned int reg = mc->reg; |
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 | |
0445bdf4 | 508 | val = soc_widget_read(w, reg); |
2b97eabc | 509 | val = (val >> shift) & mask; |
32fee7af BT |
510 | if (invert) |
511 | val = max - val; | |
2b97eabc | 512 | |
32fee7af | 513 | p->connect = !!val; |
2b97eabc RP |
514 | } |
515 | break; | |
516 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
517 | struct soc_enum *e = (struct soc_enum *) |
518 | w->kcontrol_news[i].private_value; | |
86767b7d | 519 | int val, item; |
2b97eabc | 520 | |
0445bdf4 | 521 | val = soc_widget_read(w, e->reg); |
86767b7d | 522 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 523 | |
58fee775 LPC |
524 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
525 | p->connect = 1; | |
526 | else | |
527 | p->connect = 0; | |
2b97eabc RP |
528 | } |
529 | break; | |
24ff33ac | 530 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
531 | struct soc_enum *e = (struct soc_enum *) |
532 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
533 | |
534 | p->connect = 0; | |
535 | /* since a virtual mux has no backing registers to | |
536 | * decide which path to connect, it will try to match | |
537 | * with the first enumeration. This is to ensure | |
538 | * that the default mux choice (the first) will be | |
539 | * correctly powered up during initialization. | |
540 | */ | |
541 | if (!strcmp(p->name, e->texts[0])) | |
542 | p->connect = 1; | |
543 | } | |
544 | break; | |
2e72f8e3 | 545 | case snd_soc_dapm_value_mux: { |
74155556 | 546 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 547 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
548 | int val, item; |
549 | ||
0445bdf4 | 550 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
551 | val = (val >> e->shift_l) & e->mask; |
552 | for (item = 0; item < e->max; item++) { | |
553 | if (val == e->values[item]) | |
554 | break; | |
555 | } | |
556 | ||
58fee775 LPC |
557 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
558 | p->connect = 1; | |
559 | else | |
560 | p->connect = 0; | |
2e72f8e3 PU |
561 | } |
562 | break; | |
56563100 | 563 | /* does not affect routing - always connected */ |
2b97eabc | 564 | case snd_soc_dapm_pga: |
d88429a6 | 565 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
566 | case snd_soc_dapm_output: |
567 | case snd_soc_dapm_adc: | |
568 | case snd_soc_dapm_input: | |
1ab97c8c | 569 | case snd_soc_dapm_siggen: |
2b97eabc RP |
570 | case snd_soc_dapm_dac: |
571 | case snd_soc_dapm_micbias: | |
572 | case snd_soc_dapm_vmid: | |
246d0a17 | 573 | case snd_soc_dapm_supply: |
62ea874a | 574 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 575 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
576 | case snd_soc_dapm_aif_in: |
577 | case snd_soc_dapm_aif_out: | |
4616274d MB |
578 | case snd_soc_dapm_dai_in: |
579 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
580 | case snd_soc_dapm_hp: |
581 | case snd_soc_dapm_mic: | |
582 | case snd_soc_dapm_spk: | |
583 | case snd_soc_dapm_line: | |
c74184ed | 584 | case snd_soc_dapm_dai_link: |
57295073 | 585 | case snd_soc_dapm_kcontrol: |
56563100 MB |
586 | p->connect = 1; |
587 | break; | |
588 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
589 | case snd_soc_dapm_pre: |
590 | case snd_soc_dapm_post: | |
591 | p->connect = 0; | |
592 | break; | |
593 | } | |
594 | } | |
595 | ||
74b8f955 | 596 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 597 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
598 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
599 | struct snd_soc_dapm_path *path, const char *control_name, | |
600 | const struct snd_kcontrol_new *kcontrol) | |
601 | { | |
602 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
603 | int i; | |
604 | ||
f8ba0b7b | 605 | for (i = 0; i < e->max; i++) { |
2b97eabc | 606 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 607 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
608 | list_add(&path->list_sink, &dest->sources); |
609 | list_add(&path->list_source, &src->sinks); | |
610 | path->name = (char*)e->texts[i]; | |
611 | dapm_set_path_status(dest, path, 0); | |
612 | return 0; | |
613 | } | |
614 | } | |
615 | ||
616 | return -ENODEV; | |
617 | } | |
618 | ||
74b8f955 | 619 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 620 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
621 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
622 | struct snd_soc_dapm_path *path, const char *control_name) | |
623 | { | |
624 | int i; | |
625 | ||
626 | /* search for mixer kcontrol */ | |
627 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 628 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 629 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
630 | list_add(&path->list_sink, &dest->sources); |
631 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 632 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
633 | dapm_set_path_status(dest, path, i); |
634 | return 0; | |
635 | } | |
636 | } | |
637 | return -ENODEV; | |
638 | } | |
639 | ||
af46800b | 640 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 641 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
642 | const struct snd_kcontrol_new *kcontrol_new, |
643 | struct snd_kcontrol **kcontrol) | |
644 | { | |
645 | struct snd_soc_dapm_widget *w; | |
646 | int i; | |
647 | ||
648 | *kcontrol = NULL; | |
649 | ||
650 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
651 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
652 | continue; | |
af46800b SW |
653 | for (i = 0; i < w->num_kcontrols; i++) { |
654 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
655 | if (w->kcontrols) | |
656 | *kcontrol = w->kcontrols[i]; | |
657 | return 1; | |
658 | } | |
659 | } | |
660 | } | |
661 | ||
662 | return 0; | |
663 | } | |
664 | ||
85762e71 SW |
665 | /* |
666 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
667 | * create it. Either way, add the widget into the control's widget list | |
668 | */ | |
669 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 670 | int kci) |
2b97eabc | 671 | { |
4b80b8c2 | 672 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 673 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 674 | const char *prefix; |
85762e71 SW |
675 | size_t prefix_len; |
676 | int shared; | |
677 | struct snd_kcontrol *kcontrol; | |
85762e71 | 678 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
679 | char *long_name; |
680 | const char *name; | |
681 | int ret; | |
efb7ac3f MB |
682 | |
683 | if (dapm->codec) | |
684 | prefix = dapm->codec->name_prefix; | |
685 | else | |
686 | prefix = NULL; | |
2b97eabc | 687 | |
3e5ff4df MB |
688 | if (prefix) |
689 | prefix_len = strlen(prefix) + 1; | |
690 | else | |
691 | prefix_len = 0; | |
692 | ||
85762e71 SW |
693 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
694 | &kcontrol); | |
2b97eabc | 695 | |
85762e71 SW |
696 | if (!kcontrol) { |
697 | if (shared) { | |
698 | wname_in_long_name = false; | |
699 | kcname_in_long_name = true; | |
700 | } else { | |
701 | switch (w->id) { | |
702 | case snd_soc_dapm_switch: | |
703 | case snd_soc_dapm_mixer: | |
704 | wname_in_long_name = true; | |
705 | kcname_in_long_name = true; | |
706 | break; | |
707 | case snd_soc_dapm_mixer_named_ctl: | |
708 | wname_in_long_name = false; | |
709 | kcname_in_long_name = true; | |
710 | break; | |
711 | case snd_soc_dapm_mux: | |
712 | case snd_soc_dapm_virt_mux: | |
713 | case snd_soc_dapm_value_mux: | |
714 | wname_in_long_name = true; | |
715 | kcname_in_long_name = false; | |
716 | break; | |
717 | default: | |
85762e71 | 718 | return -EINVAL; |
82cd8764 | 719 | } |
85762e71 SW |
720 | } |
721 | ||
722 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
723 | /* |
724 | * The control will get a prefix from the control | |
725 | * creation process but we're also using the same | |
726 | * prefix for widgets so cut the prefix off the | |
727 | * front of the widget name. | |
ca9c1aae | 728 | */ |
2b581074 | 729 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
730 | w->name + prefix_len, |
731 | w->kcontrol_news[kci].name); | |
e84357f7 | 732 | if (long_name == NULL) |
2b581074 | 733 | return -ENOMEM; |
85762e71 SW |
734 | |
735 | name = long_name; | |
736 | } else if (wname_in_long_name) { | |
737 | long_name = NULL; | |
738 | name = w->name + prefix_len; | |
739 | } else { | |
740 | long_name = NULL; | |
741 | name = w->kcontrol_news[kci].name; | |
742 | } | |
ca9c1aae | 743 | |
e84357f7 | 744 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 745 | prefix); |
656ca9d3 | 746 | kfree(long_name); |
9356e9d5 LPC |
747 | if (!kcontrol) |
748 | return -ENOMEM; | |
749 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
750 | |
751 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
752 | if (ret) { | |
753 | snd_ctl_free_one(kcontrol); | |
754 | return ret; | |
755 | } | |
756 | ||
85762e71 SW |
757 | ret = snd_ctl_add(card, kcontrol); |
758 | if (ret < 0) { | |
759 | dev_err(dapm->dev, | |
760 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
761 | w->name, name, ret); | |
85762e71 SW |
762 | return ret; |
763 | } | |
85762e71 | 764 | } |
2b97eabc | 765 | |
2c75bdf3 LPC |
766 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
767 | if (ret) | |
768 | return ret; | |
769 | ||
85762e71 | 770 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 771 | |
85762e71 SW |
772 | return 0; |
773 | } | |
219b93f5 | 774 | |
85762e71 SW |
775 | /* create new dapm mixer control */ |
776 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
777 | { | |
778 | int i, ret; | |
779 | struct snd_soc_dapm_path *path; | |
780 | ||
781 | /* add kcontrol */ | |
782 | for (i = 0; i < w->num_kcontrols; i++) { | |
783 | /* match name */ | |
784 | list_for_each_entry(path, &w->sources, list_sink) { | |
785 | /* mixer/mux paths name must match control name */ | |
786 | if (path->name != (char *)w->kcontrol_news[i].name) | |
787 | continue; | |
788 | ||
789 | if (w->kcontrols[i]) { | |
5106b92f | 790 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 791 | continue; |
2b97eabc | 792 | } |
85762e71 | 793 | |
946d92a1 | 794 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
795 | if (ret < 0) |
796 | return ret; | |
946d92a1 MB |
797 | |
798 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
799 | } |
800 | } | |
85762e71 SW |
801 | |
802 | return 0; | |
2b97eabc RP |
803 | } |
804 | ||
805 | /* create new dapm mux control */ | |
4b80b8c2 | 806 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 807 | { |
4b80b8c2 | 808 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 809 | struct snd_soc_dapm_path *path; |
af46800b | 810 | int ret; |
2b97eabc | 811 | |
af46800b SW |
812 | if (w->num_kcontrols != 1) { |
813 | dev_err(dapm->dev, | |
30a6a1a4 | 814 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 815 | w->name); |
2b97eabc RP |
816 | return -EINVAL; |
817 | } | |
818 | ||
fe581391 | 819 | if (list_empty(&w->sources)) { |
85762e71 SW |
820 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
821 | return -EINVAL; | |
af46800b | 822 | } |
ce6120cc | 823 | |
946d92a1 | 824 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
825 | if (ret < 0) |
826 | return ret; | |
fad59888 | 827 | |
2b97eabc | 828 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 829 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 830 | |
af46800b | 831 | return 0; |
2b97eabc RP |
832 | } |
833 | ||
834 | /* create new dapm volume control */ | |
4b80b8c2 | 835 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 836 | { |
a6c65736 | 837 | if (w->num_kcontrols) |
f7d41ae8 | 838 | dev_err(w->dapm->dev, |
30a6a1a4 | 839 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 840 | |
a6c65736 | 841 | return 0; |
2b97eabc RP |
842 | } |
843 | ||
844 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
845 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
846 | struct list_head *sink) | |
2b97eabc RP |
847 | { |
848 | struct snd_soc_dapm_path *p; | |
849 | ||
1059ecfa RT |
850 | list_for_each_entry(p, sink, list_source) { |
851 | if (p->walked) { | |
852 | p->walked = 0; | |
853 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
854 | } | |
855 | } | |
2b97eabc RP |
856 | } |
857 | ||
1059ecfa RT |
858 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
859 | struct list_head *source) | |
2b97eabc RP |
860 | { |
861 | struct snd_soc_dapm_path *p; | |
862 | ||
1059ecfa RT |
863 | list_for_each_entry(p, source, list_sink) { |
864 | if (p->walked) { | |
865 | p->walked = 0; | |
866 | dapm_clear_walk_input(dapm, &p->source->sources); | |
867 | } | |
868 | } | |
2b97eabc RP |
869 | } |
870 | ||
1059ecfa | 871 | |
9949788b MB |
872 | /* We implement power down on suspend by checking the power state of |
873 | * the ALSA card - when we are suspending the ALSA state for the card | |
874 | * is set to D3. | |
875 | */ | |
876 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
877 | { | |
12ea2c78 | 878 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 879 | |
f0fba2ad | 880 | switch (level) { |
9949788b MB |
881 | case SNDRV_CTL_POWER_D3hot: |
882 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 883 | if (widget->ignore_suspend) |
30a6a1a4 | 884 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 885 | widget->name); |
1547aba9 | 886 | return widget->ignore_suspend; |
9949788b MB |
887 | default: |
888 | return 1; | |
889 | } | |
890 | } | |
891 | ||
ec2e3031 LG |
892 | /* add widget to list if it's not already in the list */ |
893 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
894 | struct snd_soc_dapm_widget *w) | |
895 | { | |
896 | struct snd_soc_dapm_widget_list *wlist; | |
897 | int wlistsize, wlistentries, i; | |
898 | ||
899 | if (*list == NULL) | |
900 | return -EINVAL; | |
901 | ||
902 | wlist = *list; | |
903 | ||
904 | /* is this widget already in the list */ | |
905 | for (i = 0; i < wlist->num_widgets; i++) { | |
906 | if (wlist->widgets[i] == w) | |
907 | return 0; | |
908 | } | |
909 | ||
910 | /* allocate some new space */ | |
911 | wlistentries = wlist->num_widgets + 1; | |
912 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
913 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
914 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
915 | if (*list == NULL) { | |
30a6a1a4 | 916 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
917 | w->name); |
918 | return -ENOMEM; | |
919 | } | |
920 | wlist = *list; | |
921 | ||
922 | /* insert the widget */ | |
30a6a1a4 | 923 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
924 | w->name, wlist->num_widgets); |
925 | ||
926 | wlist->widgets[wlist->num_widgets] = w; | |
927 | wlist->num_widgets++; | |
928 | return 1; | |
929 | } | |
930 | ||
2b97eabc RP |
931 | /* |
932 | * Recursively check for a completed path to an active or physically connected | |
933 | * output widget. Returns number of complete paths. | |
934 | */ | |
ec2e3031 LG |
935 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
936 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
937 | { |
938 | struct snd_soc_dapm_path *path; | |
939 | int con = 0; | |
940 | ||
024dc078 MB |
941 | if (widget->outputs >= 0) |
942 | return widget->outputs; | |
943 | ||
de02d078 MB |
944 | DAPM_UPDATE_STAT(widget, path_checks); |
945 | ||
62ea874a MB |
946 | switch (widget->id) { |
947 | case snd_soc_dapm_supply: | |
948 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 949 | case snd_soc_dapm_clock_supply: |
57295073 | 950 | case snd_soc_dapm_kcontrol: |
246d0a17 | 951 | return 0; |
62ea874a MB |
952 | default: |
953 | break; | |
954 | } | |
246d0a17 | 955 | |
010ff262 MB |
956 | switch (widget->id) { |
957 | case snd_soc_dapm_adc: | |
958 | case snd_soc_dapm_aif_out: | |
4616274d | 959 | case snd_soc_dapm_dai_out: |
024dc078 MB |
960 | if (widget->active) { |
961 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
962 | return widget->outputs; | |
963 | } | |
010ff262 MB |
964 | default: |
965 | break; | |
966 | } | |
2b97eabc RP |
967 | |
968 | if (widget->connected) { | |
969 | /* connected pin ? */ | |
024dc078 MB |
970 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
971 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
972 | return widget->outputs; | |
973 | } | |
2b97eabc RP |
974 | |
975 | /* connected jack or spk ? */ | |
024dc078 MB |
976 | if (widget->id == snd_soc_dapm_hp || |
977 | widget->id == snd_soc_dapm_spk || | |
978 | (widget->id == snd_soc_dapm_line && | |
979 | !list_empty(&widget->sources))) { | |
980 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
981 | return widget->outputs; | |
982 | } | |
2b97eabc RP |
983 | } |
984 | ||
985 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
986 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
987 | ||
bf3a9e13 MB |
988 | if (path->weak) |
989 | continue; | |
990 | ||
8af294b4 MB |
991 | if (path->walking) |
992 | return 1; | |
993 | ||
2b97eabc RP |
994 | if (path->walked) |
995 | continue; | |
996 | ||
ec2e3031 LG |
997 | trace_snd_soc_dapm_output_path(widget, path); |
998 | ||
2b97eabc RP |
999 | if (path->sink && path->connect) { |
1000 | path->walked = 1; | |
8af294b4 | 1001 | path->walking = 1; |
ec2e3031 LG |
1002 | |
1003 | /* do we need to add this widget to the list ? */ | |
1004 | if (list) { | |
1005 | int err; | |
1006 | err = dapm_list_add_widget(list, path->sink); | |
1007 | if (err < 0) { | |
30a6a1a4 LG |
1008 | dev_err(widget->dapm->dev, |
1009 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1010 | widget->name); |
8af294b4 | 1011 | path->walking = 0; |
ec2e3031 LG |
1012 | return con; |
1013 | } | |
1014 | } | |
1015 | ||
1016 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1017 | |
1018 | path->walking = 0; | |
2b97eabc RP |
1019 | } |
1020 | } | |
1021 | ||
024dc078 MB |
1022 | widget->outputs = con; |
1023 | ||
2b97eabc RP |
1024 | return con; |
1025 | } | |
1026 | ||
1027 | /* | |
1028 | * Recursively check for a completed path to an active or physically connected | |
1029 | * input widget. Returns number of complete paths. | |
1030 | */ | |
ec2e3031 LG |
1031 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1032 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1033 | { |
1034 | struct snd_soc_dapm_path *path; | |
1035 | int con = 0; | |
1036 | ||
024dc078 MB |
1037 | if (widget->inputs >= 0) |
1038 | return widget->inputs; | |
1039 | ||
de02d078 MB |
1040 | DAPM_UPDATE_STAT(widget, path_checks); |
1041 | ||
62ea874a MB |
1042 | switch (widget->id) { |
1043 | case snd_soc_dapm_supply: | |
1044 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 1045 | case snd_soc_dapm_clock_supply: |
57295073 | 1046 | case snd_soc_dapm_kcontrol: |
246d0a17 | 1047 | return 0; |
62ea874a MB |
1048 | default: |
1049 | break; | |
1050 | } | |
246d0a17 | 1051 | |
2b97eabc | 1052 | /* active stream ? */ |
010ff262 MB |
1053 | switch (widget->id) { |
1054 | case snd_soc_dapm_dac: | |
1055 | case snd_soc_dapm_aif_in: | |
4616274d | 1056 | case snd_soc_dapm_dai_in: |
024dc078 MB |
1057 | if (widget->active) { |
1058 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1059 | return widget->inputs; | |
1060 | } | |
010ff262 MB |
1061 | default: |
1062 | break; | |
1063 | } | |
2b97eabc RP |
1064 | |
1065 | if (widget->connected) { | |
1066 | /* connected pin ? */ | |
024dc078 MB |
1067 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
1068 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1069 | return widget->inputs; | |
1070 | } | |
2b97eabc RP |
1071 | |
1072 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
1073 | if (widget->id == snd_soc_dapm_vmid) { |
1074 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1075 | return widget->inputs; | |
1076 | } | |
2b97eabc RP |
1077 | |
1078 | /* connected jack ? */ | |
eaeae5d9 | 1079 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1080 | (widget->id == snd_soc_dapm_line && |
1081 | !list_empty(&widget->sinks))) { | |
1082 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1083 | return widget->inputs; | |
1084 | } | |
1085 | ||
1ab97c8c MB |
1086 | /* signal generator */ |
1087 | if (widget->id == snd_soc_dapm_siggen) { | |
1088 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1089 | return widget->inputs; | |
1090 | } | |
2b97eabc RP |
1091 | } |
1092 | ||
1093 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1094 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1095 | ||
bf3a9e13 MB |
1096 | if (path->weak) |
1097 | continue; | |
1098 | ||
8af294b4 MB |
1099 | if (path->walking) |
1100 | return 1; | |
1101 | ||
2b97eabc RP |
1102 | if (path->walked) |
1103 | continue; | |
1104 | ||
ec2e3031 LG |
1105 | trace_snd_soc_dapm_input_path(widget, path); |
1106 | ||
2b97eabc RP |
1107 | if (path->source && path->connect) { |
1108 | path->walked = 1; | |
8af294b4 | 1109 | path->walking = 1; |
ec2e3031 LG |
1110 | |
1111 | /* do we need to add this widget to the list ? */ | |
1112 | if (list) { | |
1113 | int err; | |
90c6ce0d | 1114 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1115 | if (err < 0) { |
30a6a1a4 LG |
1116 | dev_err(widget->dapm->dev, |
1117 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1118 | widget->name); |
8af294b4 | 1119 | path->walking = 0; |
ec2e3031 LG |
1120 | return con; |
1121 | } | |
1122 | } | |
1123 | ||
1124 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1125 | |
1126 | path->walking = 0; | |
2b97eabc RP |
1127 | } |
1128 | } | |
1129 | ||
024dc078 MB |
1130 | widget->inputs = con; |
1131 | ||
2b97eabc RP |
1132 | return con; |
1133 | } | |
1134 | ||
ec2e3031 LG |
1135 | /** |
1136 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1137 | * @dai: the soc DAI. | |
1138 | * @stream: stream direction. | |
1139 | * @list: list of active widgets for this stream. | |
1140 | * | |
1141 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1142 | * the initial stream specified by name. This takes into account | |
1143 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1144 | * | |
1145 | * Returns the number of valid paths or negative error. | |
1146 | */ | |
1147 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1148 | struct snd_soc_dapm_widget_list **list) | |
1149 | { | |
1150 | struct snd_soc_card *card = dai->card; | |
1151 | int paths; | |
1152 | ||
1153 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1154 | dapm_reset(card); | |
1155 | ||
1059ecfa | 1156 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1157 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1158 | dapm_clear_walk_output(&card->dapm, |
1159 | &dai->playback_widget->sinks); | |
1160 | } else { | |
d298caae | 1161 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1162 | dapm_clear_walk_input(&card->dapm, |
1163 | &dai->capture_widget->sources); | |
1164 | } | |
ec2e3031 LG |
1165 | |
1166 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1167 | mutex_unlock(&card->dapm_mutex); |
1168 | ||
1169 | return paths; | |
1170 | } | |
1171 | ||
e2be2ccf JN |
1172 | /* |
1173 | * Handler for generic register modifier widget. | |
1174 | */ | |
1175 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1176 | struct snd_kcontrol *kcontrol, int event) | |
1177 | { | |
1178 | unsigned int val; | |
1179 | ||
1180 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1181 | val = w->on_val; | |
1182 | else | |
1183 | val = w->off_val; | |
1184 | ||
49575fb5 | 1185 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1186 | w->mask << w->shift, val << w->shift); |
1187 | ||
1188 | return 0; | |
1189 | } | |
11589418 | 1190 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1191 | |
62ea874a MB |
1192 | /* |
1193 | * Handler for regulator supply widget. | |
1194 | */ | |
1195 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1196 | struct snd_kcontrol *kcontrol, int event) | |
1197 | { | |
c05b84d1 MB |
1198 | int ret; |
1199 | ||
1200 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
de9ba98b | 1201 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1202 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1203 | if (ret != 0) |
1204 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1205 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1206 | w->name, ret); |
1207 | } | |
1208 | ||
a3cc056b | 1209 | return regulator_enable(w->regulator); |
c05b84d1 | 1210 | } else { |
de9ba98b | 1211 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1212 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1213 | if (ret != 0) |
1214 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1215 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1216 | w->name, ret); |
1217 | } | |
1218 | ||
a3cc056b | 1219 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1220 | } |
62ea874a MB |
1221 | } |
1222 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1223 | ||
d7e7eb91 OL |
1224 | /* |
1225 | * Handler for clock supply widget. | |
1226 | */ | |
1227 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1228 | struct snd_kcontrol *kcontrol, int event) | |
1229 | { | |
1230 | if (!w->clk) | |
1231 | return -EIO; | |
1232 | ||
ec02995a | 1233 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1234 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1235 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1236 | } else { |
37c1b927 | 1237 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1238 | return 0; |
1239 | } | |
ec02995a | 1240 | #endif |
98b3cf12 | 1241 | return 0; |
d7e7eb91 OL |
1242 | } |
1243 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1244 | ||
d805002b MB |
1245 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1246 | { | |
9b8a83b2 MB |
1247 | if (w->power_checked) |
1248 | return w->new_power; | |
1249 | ||
d805002b | 1250 | if (w->force) |
9b8a83b2 | 1251 | w->new_power = 1; |
d805002b | 1252 | else |
9b8a83b2 MB |
1253 | w->new_power = w->power_check(w); |
1254 | ||
1255 | w->power_checked = true; | |
1256 | ||
1257 | return w->new_power; | |
d805002b MB |
1258 | } |
1259 | ||
cd0f2d47 MB |
1260 | /* Generic check to see if a widget should be powered. |
1261 | */ | |
1262 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1263 | { | |
1264 | int in, out; | |
1265 | ||
de02d078 MB |
1266 | DAPM_UPDATE_STAT(w, power_checks); |
1267 | ||
ec2e3031 | 1268 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1269 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1270 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1271 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1272 | return out != 0 && in != 0; |
1273 | } | |
1274 | ||
6ea31b9f MB |
1275 | /* Check to see if an ADC has power */ |
1276 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1277 | { | |
1278 | int in; | |
1279 | ||
de02d078 MB |
1280 | DAPM_UPDATE_STAT(w, power_checks); |
1281 | ||
6ea31b9f | 1282 | if (w->active) { |
ec2e3031 | 1283 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1284 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1285 | return in != 0; |
1286 | } else { | |
1287 | return dapm_generic_check_power(w); | |
1288 | } | |
1289 | } | |
1290 | ||
1291 | /* Check to see if a DAC has power */ | |
1292 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1293 | { | |
1294 | int out; | |
1295 | ||
de02d078 MB |
1296 | DAPM_UPDATE_STAT(w, power_checks); |
1297 | ||
6ea31b9f | 1298 | if (w->active) { |
ec2e3031 | 1299 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1300 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1301 | return out != 0; |
1302 | } else { | |
1303 | return dapm_generic_check_power(w); | |
1304 | } | |
1305 | } | |
1306 | ||
246d0a17 MB |
1307 | /* Check to see if a power supply is needed */ |
1308 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1309 | { | |
1310 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1311 | |
de02d078 MB |
1312 | DAPM_UPDATE_STAT(w, power_checks); |
1313 | ||
246d0a17 MB |
1314 | /* Check if one of our outputs is connected */ |
1315 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1316 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1317 | ||
bf3a9e13 MB |
1318 | if (path->weak) |
1319 | continue; | |
1320 | ||
215edda3 MB |
1321 | if (path->connected && |
1322 | !path->connected(path->source, path->sink)) | |
1323 | continue; | |
1324 | ||
3017358a MB |
1325 | if (!path->sink) |
1326 | continue; | |
1327 | ||
f68d7e16 MB |
1328 | if (dapm_widget_power_check(path->sink)) |
1329 | return 1; | |
246d0a17 MB |
1330 | } |
1331 | ||
f68d7e16 | 1332 | return 0; |
246d0a17 MB |
1333 | } |
1334 | ||
35c64bca MB |
1335 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1336 | { | |
1337 | return 1; | |
1338 | } | |
1339 | ||
38357ab2 MB |
1340 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1341 | struct snd_soc_dapm_widget *b, | |
828a842f | 1342 | bool power_up) |
42aa3418 | 1343 | { |
828a842f MB |
1344 | int *sort; |
1345 | ||
1346 | if (power_up) | |
1347 | sort = dapm_up_seq; | |
1348 | else | |
1349 | sort = dapm_down_seq; | |
1350 | ||
38357ab2 MB |
1351 | if (sort[a->id] != sort[b->id]) |
1352 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1353 | if (a->subseq != b->subseq) { |
1354 | if (power_up) | |
1355 | return a->subseq - b->subseq; | |
1356 | else | |
1357 | return b->subseq - a->subseq; | |
1358 | } | |
b22ead2a MB |
1359 | if (a->reg != b->reg) |
1360 | return a->reg - b->reg; | |
84dab567 MB |
1361 | if (a->dapm != b->dapm) |
1362 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1363 | |
38357ab2 MB |
1364 | return 0; |
1365 | } | |
42aa3418 | 1366 | |
38357ab2 MB |
1367 | /* Insert a widget in order into a DAPM power sequence. */ |
1368 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1369 | struct list_head *list, | |
828a842f | 1370 | bool power_up) |
38357ab2 MB |
1371 | { |
1372 | struct snd_soc_dapm_widget *w; | |
1373 | ||
1374 | list_for_each_entry(w, list, power_list) | |
828a842f | 1375 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1376 | list_add_tail(&new_widget->power_list, &w->power_list); |
1377 | return; | |
1378 | } | |
1379 | ||
1380 | list_add_tail(&new_widget->power_list, list); | |
1381 | } | |
1382 | ||
95dd5cd6 | 1383 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1384 | struct snd_soc_dapm_widget *w, int event) |
1385 | { | |
68f89ad8 MB |
1386 | const char *ev_name; |
1387 | int power, ret; | |
1388 | ||
1389 | switch (event) { | |
1390 | case SND_SOC_DAPM_PRE_PMU: | |
1391 | ev_name = "PRE_PMU"; | |
1392 | power = 1; | |
1393 | break; | |
1394 | case SND_SOC_DAPM_POST_PMU: | |
1395 | ev_name = "POST_PMU"; | |
1396 | power = 1; | |
1397 | break; | |
1398 | case SND_SOC_DAPM_PRE_PMD: | |
1399 | ev_name = "PRE_PMD"; | |
1400 | power = 0; | |
1401 | break; | |
1402 | case SND_SOC_DAPM_POST_PMD: | |
1403 | ev_name = "POST_PMD"; | |
1404 | power = 0; | |
1405 | break; | |
80114129 MB |
1406 | case SND_SOC_DAPM_WILL_PMU: |
1407 | ev_name = "WILL_PMU"; | |
1408 | power = 1; | |
1409 | break; | |
1410 | case SND_SOC_DAPM_WILL_PMD: | |
1411 | ev_name = "WILL_PMD"; | |
1412 | power = 0; | |
1413 | break; | |
68f89ad8 MB |
1414 | default: |
1415 | BUG(); | |
1416 | return; | |
1417 | } | |
1418 | ||
39eb5fd1 | 1419 | if (w->new_power != power) |
68f89ad8 MB |
1420 | return; |
1421 | ||
1422 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1423 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1424 | w->name, ev_name); |
84e90930 | 1425 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1426 | ret = w->event(w, NULL, event); |
84e90930 | 1427 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1428 | if (ret < 0) |
95dd5cd6 | 1429 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1430 | ev_name, w->name, ret); |
1431 | } | |
1432 | } | |
1433 | ||
b22ead2a | 1434 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1435 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1436 | struct list_head *pending) |
163cac06 | 1437 | { |
68f89ad8 | 1438 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1439 | int reg; |
b22ead2a MB |
1440 | unsigned int value = 0; |
1441 | unsigned int mask = 0; | |
b22ead2a MB |
1442 | |
1443 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1444 | power_list)->reg; | |
1445 | ||
1446 | list_for_each_entry(w, pending, power_list) { | |
b22ead2a | 1447 | BUG_ON(reg != w->reg); |
39eb5fd1 | 1448 | w->power = w->new_power; |
b22ead2a | 1449 | |
de9ba98b LPC |
1450 | mask |= w->mask << w->shift; |
1451 | if (w->power) | |
1452 | value |= w->on_val << w->shift; | |
b22ead2a | 1453 | else |
de9ba98b | 1454 | value |= w->off_val << w->shift; |
b22ead2a | 1455 | |
95dd5cd6 | 1456 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1457 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1458 | w->name, reg, value, mask); | |
81628103 | 1459 | |
68f89ad8 | 1460 | /* Check for events */ |
95dd5cd6 LPC |
1461 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1462 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1463 | } |
1464 | ||
1465 | if (reg >= 0) { | |
29376bc7 MB |
1466 | /* Any widget will do, they should all be updating the |
1467 | * same register. | |
1468 | */ | |
1469 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1470 | power_list); | |
1471 | ||
95dd5cd6 | 1472 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1473 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1474 | value, mask, reg, card->pop_time); |
1475 | pop_wait(card->pop_time); | |
49575fb5 | 1476 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1477 | } |
1478 | ||
81628103 | 1479 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1480 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1481 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1482 | } |
b22ead2a | 1483 | } |
42aa3418 | 1484 | |
b22ead2a MB |
1485 | /* Apply a DAPM power sequence. |
1486 | * | |
1487 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1488 | * order to minimise the number of writes to the device required | |
1489 | * multiple widgets will be updated in a single write where possible. | |
1490 | * Currently anything that requires more than a single write is not | |
1491 | * handled. | |
1492 | */ | |
95dd5cd6 LPC |
1493 | static void dapm_seq_run(struct snd_soc_card *card, |
1494 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1495 | { |
1496 | struct snd_soc_dapm_widget *w, *n; | |
1497 | LIST_HEAD(pending); | |
1498 | int cur_sort = -1; | |
20e4859d | 1499 | int cur_subseq = -1; |
b22ead2a | 1500 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1501 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1502 | int ret, i; |
828a842f MB |
1503 | int *sort; |
1504 | ||
1505 | if (power_up) | |
1506 | sort = dapm_up_seq; | |
1507 | else | |
1508 | sort = dapm_down_seq; | |
163cac06 | 1509 | |
b22ead2a MB |
1510 | list_for_each_entry_safe(w, n, list, power_list) { |
1511 | ret = 0; | |
1512 | ||
1513 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1514 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1515 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1516 | if (!list_empty(&pending)) |
95dd5cd6 | 1517 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1518 | |
474b62d6 MB |
1519 | if (cur_dapm && cur_dapm->seq_notifier) { |
1520 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1521 | if (sort[i] == cur_sort) | |
1522 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1523 | i, |
1524 | cur_subseq); | |
474b62d6 MB |
1525 | } |
1526 | ||
b22ead2a MB |
1527 | INIT_LIST_HEAD(&pending); |
1528 | cur_sort = -1; | |
b0b3e6f8 | 1529 | cur_subseq = INT_MIN; |
b22ead2a | 1530 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1531 | cur_dapm = NULL; |
b22ead2a MB |
1532 | } |
1533 | ||
163cac06 MB |
1534 | switch (w->id) { |
1535 | case snd_soc_dapm_pre: | |
1536 | if (!w->event) | |
b22ead2a MB |
1537 | list_for_each_entry_safe_continue(w, n, list, |
1538 | power_list); | |
163cac06 | 1539 | |
b22ead2a | 1540 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1541 | ret = w->event(w, |
1542 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1543 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1544 | ret = w->event(w, |
1545 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1546 | break; |
1547 | ||
1548 | case snd_soc_dapm_post: | |
1549 | if (!w->event) | |
b22ead2a MB |
1550 | list_for_each_entry_safe_continue(w, n, list, |
1551 | power_list); | |
163cac06 | 1552 | |
b22ead2a | 1553 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1554 | ret = w->event(w, |
1555 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1556 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1557 | ret = w->event(w, |
1558 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1559 | break; |
1560 | ||
b22ead2a | 1561 | default: |
81628103 MB |
1562 | /* Queue it up for application */ |
1563 | cur_sort = sort[w->id]; | |
20e4859d | 1564 | cur_subseq = w->subseq; |
81628103 | 1565 | cur_reg = w->reg; |
7be31be8 | 1566 | cur_dapm = w->dapm; |
81628103 MB |
1567 | list_move(&w->power_list, &pending); |
1568 | break; | |
163cac06 | 1569 | } |
b22ead2a MB |
1570 | |
1571 | if (ret < 0) | |
f7d41ae8 | 1572 | dev_err(w->dapm->dev, |
30a6a1a4 | 1573 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1574 | } |
b22ead2a MB |
1575 | |
1576 | if (!list_empty(&pending)) | |
95dd5cd6 | 1577 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1578 | |
1579 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1580 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1581 | if (sort[i] == cur_sort) | |
1582 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1583 | i, cur_subseq); |
474b62d6 | 1584 | } |
42aa3418 MB |
1585 | } |
1586 | ||
95dd5cd6 | 1587 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1588 | { |
95dd5cd6 | 1589 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1590 | struct snd_soc_dapm_widget_list *wlist; |
1591 | struct snd_soc_dapm_widget *w = NULL; | |
1592 | unsigned int wi; | |
97404f2e MB |
1593 | int ret; |
1594 | ||
57295073 | 1595 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1596 | return; |
1597 | ||
e84357f7 | 1598 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1599 | |
ce6cfaf1 LPC |
1600 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1601 | w = wlist->widgets[wi]; | |
1602 | ||
1603 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1604 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1605 | if (ret != 0) | |
95dd5cd6 | 1606 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1607 | w->name, ret); |
1608 | } | |
97404f2e MB |
1609 | } |
1610 | ||
ce6cfaf1 LPC |
1611 | if (!w) |
1612 | return; | |
1613 | ||
49575fb5 | 1614 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1615 | update->val); |
1616 | if (ret < 0) | |
95dd5cd6 | 1617 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1618 | w->name, ret); |
97404f2e | 1619 | |
ce6cfaf1 LPC |
1620 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1621 | w = wlist->widgets[wi]; | |
1622 | ||
1623 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1624 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1625 | if (ret != 0) | |
95dd5cd6 | 1626 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1627 | w->name, ret); |
1628 | } | |
97404f2e MB |
1629 | } |
1630 | } | |
1631 | ||
9d0624a7 MB |
1632 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1633 | * they're changing state. | |
1634 | */ | |
1635 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1636 | { | |
1637 | struct snd_soc_dapm_context *d = data; | |
1638 | int ret; | |
1639 | ||
56fba41f MB |
1640 | /* If we're off and we're not supposed to be go into STANDBY */ |
1641 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1642 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1643 | if (d->dev) |
1644 | pm_runtime_get_sync(d->dev); | |
1645 | ||
9d0624a7 MB |
1646 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1647 | if (ret != 0) | |
1648 | dev_err(d->dev, | |
30a6a1a4 | 1649 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1650 | } |
1651 | ||
56fba41f MB |
1652 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1653 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1654 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1655 | if (ret != 0) | |
1656 | dev_err(d->dev, | |
30a6a1a4 | 1657 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1658 | } |
1659 | } | |
1660 | ||
1661 | /* Async callback run prior to DAPM sequences - brings to their final | |
1662 | * state. | |
1663 | */ | |
1664 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1665 | { | |
1666 | struct snd_soc_dapm_context *d = data; | |
1667 | int ret; | |
1668 | ||
1669 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1670 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1671 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1672 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1673 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1674 | if (ret != 0) | |
30a6a1a4 | 1675 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1676 | ret); |
1677 | } | |
97404f2e | 1678 | |
9d0624a7 | 1679 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1680 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1681 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1682 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1683 | if (ret != 0) | |
30a6a1a4 LG |
1684 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1685 | ret); | |
f1aac484 MB |
1686 | |
1687 | if (d->dev) | |
fb644e9c | 1688 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1689 | } |
1690 | ||
1691 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1692 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1693 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1694 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1695 | if (ret != 0) | |
30a6a1a4 | 1696 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1697 | ret); |
1698 | } | |
1699 | } | |
97404f2e | 1700 | |
fe4fda5d MB |
1701 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1702 | bool power, bool connect) | |
1703 | { | |
1704 | /* If a connection is being made or broken then that update | |
1705 | * will have marked the peer dirty, otherwise the widgets are | |
1706 | * not connected and this update has no impact. */ | |
1707 | if (!connect) | |
1708 | return; | |
1709 | ||
1710 | /* If the peer is already in the state we're moving to then we | |
1711 | * won't have an impact on it. */ | |
1712 | if (power != peer->power) | |
75c1f891 | 1713 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1714 | } |
1715 | ||
05623c43 MB |
1716 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1717 | struct list_head *up_list, | |
1718 | struct list_head *down_list) | |
1719 | { | |
db432b41 MB |
1720 | struct snd_soc_dapm_path *path; |
1721 | ||
05623c43 MB |
1722 | if (w->power == power) |
1723 | return; | |
1724 | ||
1725 | trace_snd_soc_dapm_widget_power(w, power); | |
1726 | ||
db432b41 | 1727 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1728 | * also. |
db432b41 MB |
1729 | */ |
1730 | list_for_each_entry(path, &w->sources, list_sink) { | |
1731 | if (path->source) { | |
fe4fda5d MB |
1732 | dapm_widget_set_peer_power(path->source, power, |
1733 | path->connect); | |
db432b41 MB |
1734 | } |
1735 | } | |
f3bf3e45 MB |
1736 | switch (w->id) { |
1737 | case snd_soc_dapm_supply: | |
62ea874a | 1738 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1739 | case snd_soc_dapm_clock_supply: |
57295073 | 1740 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1741 | /* Supplies can't affect their outputs, only their inputs */ |
1742 | break; | |
1743 | default: | |
1744 | list_for_each_entry(path, &w->sinks, list_source) { | |
1745 | if (path->sink) { | |
1746 | dapm_widget_set_peer_power(path->sink, power, | |
1747 | path->connect); | |
1748 | } | |
db432b41 | 1749 | } |
f3bf3e45 | 1750 | break; |
db432b41 MB |
1751 | } |
1752 | ||
05623c43 MB |
1753 | if (power) |
1754 | dapm_seq_insert(w, up_list, true); | |
1755 | else | |
1756 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1757 | } |
1758 | ||
7c81beb0 MB |
1759 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1760 | struct list_head *up_list, | |
1761 | struct list_head *down_list) | |
1762 | { | |
7c81beb0 MB |
1763 | int power; |
1764 | ||
1765 | switch (w->id) { | |
1766 | case snd_soc_dapm_pre: | |
1767 | dapm_seq_insert(w, down_list, false); | |
1768 | break; | |
1769 | case snd_soc_dapm_post: | |
1770 | dapm_seq_insert(w, up_list, true); | |
1771 | break; | |
1772 | ||
1773 | default: | |
d805002b | 1774 | power = dapm_widget_power_check(w); |
7c81beb0 | 1775 | |
05623c43 | 1776 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1777 | break; |
1778 | } | |
1779 | } | |
1780 | ||
2b97eabc RP |
1781 | /* |
1782 | * Scan each dapm widget for complete audio path. | |
1783 | * A complete path is a route that has valid endpoints i.e.:- | |
1784 | * | |
1785 | * o DAC to output pin. | |
1786 | * o Input Pin to ADC. | |
1787 | * o Input pin to Output pin (bypass, sidetone) | |
1788 | * o DAC to ADC (loopback). | |
1789 | */ | |
95dd5cd6 | 1790 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1791 | { |
1792 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1793 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1794 | LIST_HEAD(up_list); |
1795 | LIST_HEAD(down_list); | |
2955b47d | 1796 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1797 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1798 | |
84e90930 MB |
1799 | trace_snd_soc_dapm_start(card); |
1800 | ||
56fba41f | 1801 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1802 | if (d->idle_bias_off) |
1803 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1804 | else | |
1805 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1806 | } |
7be31be8 | 1807 | |
6c120e19 | 1808 | dapm_reset(card); |
9b8a83b2 | 1809 | |
6d3ddc81 | 1810 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1811 | * lists indicating if they should be powered up or down. We |
1812 | * only check widgets that have been flagged as dirty but note | |
1813 | * that new widgets may be added to the dirty list while we | |
1814 | * iterate. | |
6d3ddc81 | 1815 | */ |
db432b41 | 1816 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1817 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1818 | } |
1819 | ||
f9de6d74 | 1820 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1821 | switch (w->id) { |
1822 | case snd_soc_dapm_pre: | |
1823 | case snd_soc_dapm_post: | |
1824 | /* These widgets always need to be powered */ | |
1825 | break; | |
1826 | default: | |
1827 | list_del_init(&w->dirty); | |
1828 | break; | |
1829 | } | |
db432b41 | 1830 | |
39eb5fd1 | 1831 | if (w->new_power) { |
f9de6d74 MB |
1832 | d = w->dapm; |
1833 | ||
1834 | /* Supplies and micbiases only bring the | |
1835 | * context up to STANDBY as unless something | |
1836 | * else is active and passing audio they | |
afe62367 MB |
1837 | * generally don't require full power. Signal |
1838 | * generators are virtual pins and have no | |
1839 | * power impact themselves. | |
f9de6d74 MB |
1840 | */ |
1841 | switch (w->id) { | |
afe62367 MB |
1842 | case snd_soc_dapm_siggen: |
1843 | break; | |
f9de6d74 | 1844 | case snd_soc_dapm_supply: |
62ea874a | 1845 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1846 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1847 | case snd_soc_dapm_micbias: |
1848 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1849 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1850 | break; | |
1851 | default: | |
1852 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1853 | break; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | } | |
1858 | ||
85a843c5 MB |
1859 | /* Force all contexts in the card to the same bias state if |
1860 | * they're not ground referenced. | |
1861 | */ | |
56fba41f | 1862 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1863 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1864 | if (d->target_bias_level > bias) |
1865 | bias = d->target_bias_level; | |
52ba67bf | 1866 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1867 | if (!d->idle_bias_off) |
1868 | d->target_bias_level = bias; | |
52ba67bf | 1869 | |
de02d078 | 1870 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1871 | |
9d0624a7 | 1872 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1873 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1874 | async_schedule_domain(dapm_pre_sequence_async, d, |
1875 | &async_domain); | |
1876 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1877 | |
cf1f7c6e | 1878 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1879 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1880 | } |
1881 | ||
cf1f7c6e | 1882 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1883 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1884 | } |
1885 | ||
6d3ddc81 | 1886 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1887 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1888 | |
95dd5cd6 | 1889 | dapm_widget_update(card); |
97404f2e | 1890 | |
6d3ddc81 | 1891 | /* Now power up. */ |
95dd5cd6 | 1892 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1893 | |
9d0624a7 | 1894 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1895 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1896 | async_schedule_domain(dapm_post_sequence_async, d, |
1897 | &async_domain); | |
1898 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1899 | |
8078d87f LG |
1900 | /* do we need to notify any clients that DAPM event is complete */ |
1901 | list_for_each_entry(d, &card->dapm_list, list) { | |
1902 | if (d->stream_event) | |
1903 | d->stream_event(d, event); | |
1904 | } | |
1905 | ||
95dd5cd6 | 1906 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1907 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1908 | pop_wait(card->pop_time); |
cb507e7e | 1909 | |
84e90930 MB |
1910 | trace_snd_soc_dapm_done(card); |
1911 | ||
42aa3418 | 1912 | return 0; |
2b97eabc RP |
1913 | } |
1914 | ||
79fb9387 | 1915 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1916 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1917 | char __user *user_buf, | |
1918 | size_t count, loff_t *ppos) | |
1919 | { | |
1920 | struct snd_soc_dapm_widget *w = file->private_data; | |
1921 | char *buf; | |
1922 | int in, out; | |
1923 | ssize_t ret; | |
1924 | struct snd_soc_dapm_path *p = NULL; | |
1925 | ||
1926 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1927 | if (!buf) | |
1928 | return -ENOMEM; | |
1929 | ||
ec2e3031 | 1930 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1931 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1932 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1933 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1934 | |
f13ebada MB |
1935 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1936 | w->name, w->power ? "On" : "Off", | |
1937 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1938 | |
d033c36a MB |
1939 | if (w->reg >= 0) |
1940 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1941 | " - R%d(0x%x) mask 0x%x", |
1942 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1943 | |
1944 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1945 | ||
3eef08ba MB |
1946 | if (w->sname) |
1947 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1948 | w->sname, | |
1949 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1950 | |
1951 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1952 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1953 | continue; |
1954 | ||
79fb9387 MB |
1955 | if (p->connect) |
1956 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1957 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1958 | p->name ? p->name : "static", |
1959 | p->source->name); | |
1960 | } | |
1961 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1962 | if (p->connected && !p->connected(w, p->sink)) |
1963 | continue; | |
1964 | ||
79fb9387 MB |
1965 | if (p->connect) |
1966 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1967 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1968 | p->name ? p->name : "static", |
1969 | p->sink->name); | |
1970 | } | |
1971 | ||
1972 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1973 | ||
1974 | kfree(buf); | |
1975 | return ret; | |
1976 | } | |
1977 | ||
1978 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1979 | .open = simple_open, |
79fb9387 | 1980 | .read = dapm_widget_power_read_file, |
6038f373 | 1981 | .llseek = default_llseek, |
79fb9387 MB |
1982 | }; |
1983 | ||
ef49e4fa MB |
1984 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1985 | size_t count, loff_t *ppos) | |
1986 | { | |
1987 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1988 | char *level; | |
1989 | ||
1990 | switch (dapm->bias_level) { | |
1991 | case SND_SOC_BIAS_ON: | |
1992 | level = "On\n"; | |
1993 | break; | |
1994 | case SND_SOC_BIAS_PREPARE: | |
1995 | level = "Prepare\n"; | |
1996 | break; | |
1997 | case SND_SOC_BIAS_STANDBY: | |
1998 | level = "Standby\n"; | |
1999 | break; | |
2000 | case SND_SOC_BIAS_OFF: | |
2001 | level = "Off\n"; | |
2002 | break; | |
2003 | default: | |
2004 | BUG(); | |
2005 | level = "Unknown\n"; | |
2006 | break; | |
2007 | } | |
2008 | ||
2009 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2010 | strlen(level)); | |
2011 | } | |
2012 | ||
2013 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2014 | .open = simple_open, |
ef49e4fa MB |
2015 | .read = dapm_bias_read_file, |
2016 | .llseek = default_llseek, | |
2017 | }; | |
2018 | ||
8eecaf62 LPC |
2019 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2020 | struct dentry *parent) | |
79fb9387 | 2021 | { |
79fb9387 MB |
2022 | struct dentry *d; |
2023 | ||
8eecaf62 LPC |
2024 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2025 | ||
2026 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2027 | dev_warn(dapm->dev, |
30a6a1a4 | 2028 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2029 | return; |
8eecaf62 | 2030 | } |
79fb9387 | 2031 | |
ef49e4fa MB |
2032 | d = debugfs_create_file("bias_level", 0444, |
2033 | dapm->debugfs_dapm, dapm, | |
2034 | &dapm_bias_fops); | |
2035 | if (!d) | |
2036 | dev_warn(dapm->dev, | |
2037 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2038 | } |
ef49e4fa | 2039 | |
d5d1e0be LPC |
2040 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2041 | { | |
2042 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2043 | struct dentry *d; | |
79fb9387 | 2044 | |
d5d1e0be LPC |
2045 | if (!dapm->debugfs_dapm || !w->name) |
2046 | return; | |
2047 | ||
2048 | d = debugfs_create_file(w->name, 0444, | |
2049 | dapm->debugfs_dapm, w, | |
2050 | &dapm_widget_power_fops); | |
2051 | if (!d) | |
2052 | dev_warn(w->dapm->dev, | |
2053 | "ASoC: Failed to create %s debugfs file\n", | |
2054 | w->name); | |
79fb9387 | 2055 | } |
d5d1e0be | 2056 | |
6c45e126 LPC |
2057 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2058 | { | |
2059 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2060 | } | |
2061 | ||
79fb9387 | 2062 | #else |
8eecaf62 LPC |
2063 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2064 | struct dentry *parent) | |
79fb9387 MB |
2065 | { |
2066 | } | |
d5d1e0be LPC |
2067 | |
2068 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2069 | { | |
2070 | } | |
2071 | ||
6c45e126 LPC |
2072 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2073 | { | |
2074 | } | |
2075 | ||
79fb9387 MB |
2076 | #endif |
2077 | ||
2b97eabc | 2078 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2079 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2080 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2081 | { |
2082 | struct snd_soc_dapm_path *path; | |
2083 | int found = 0; | |
2084 | ||
2b97eabc | 2085 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2086 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2087 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2088 | continue; |
2089 | ||
2090 | found = 1; | |
2091 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2092 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2093 | path->connect = 1; /* new connection */ |
75c1f891 | 2094 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2095 | } else { |
2096 | if (path->connect) | |
75c1f891 MB |
2097 | dapm_mark_dirty(path->source, |
2098 | "mux disconnection"); | |
2b97eabc | 2099 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2100 | } |
ce6cfaf1 | 2101 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2102 | } |
2103 | ||
ce6cfaf1 | 2104 | if (found) |
95dd5cd6 | 2105 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2106 | |
618dae11 | 2107 | return found; |
2b97eabc | 2108 | } |
4edbb345 | 2109 | |
ce6cfaf1 | 2110 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2111 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2112 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2113 | { |
ce6cfaf1 | 2114 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2115 | int ret; |
2116 | ||
3cd04343 | 2117 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2118 | card->update = update; |
95dd5cd6 | 2119 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2120 | card->update = NULL; |
4edbb345 | 2121 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2122 | if (ret > 0) |
c3f48ae6 | 2123 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2124 | return ret; |
2125 | } | |
40f02cd9 | 2126 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2127 | |
1b075e3f | 2128 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2129 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2130 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2131 | { |
2132 | struct snd_soc_dapm_path *path; | |
2133 | int found = 0; | |
2134 | ||
2b97eabc | 2135 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2136 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2137 | found = 1; |
283375ce | 2138 | path->connect = connect; |
75c1f891 | 2139 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2140 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2141 | } |
2142 | ||
ce6cfaf1 | 2143 | if (found) |
95dd5cd6 | 2144 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2145 | |
618dae11 | 2146 | return found; |
2b97eabc | 2147 | } |
4edbb345 | 2148 | |
ce6cfaf1 | 2149 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2150 | struct snd_kcontrol *kcontrol, int connect, |
2151 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2152 | { |
ce6cfaf1 | 2153 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2154 | int ret; |
2155 | ||
3cd04343 | 2156 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2157 | card->update = update; |
95dd5cd6 | 2158 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2159 | card->update = NULL; |
4edbb345 | 2160 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2161 | if (ret > 0) |
c3f48ae6 | 2162 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2163 | return ret; |
2164 | } | |
40f02cd9 | 2165 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2166 | |
2167 | /* show dapm widget status in sys fs */ | |
2168 | static ssize_t dapm_widget_show(struct device *dev, | |
2169 | struct device_attribute *attr, char *buf) | |
2170 | { | |
36ae1a96 | 2171 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2172 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2173 | struct snd_soc_dapm_widget *w; |
2174 | int count = 0; | |
2175 | char *state = "not set"; | |
2176 | ||
97c866de JN |
2177 | list_for_each_entry(w, &codec->card->widgets, list) { |
2178 | if (w->dapm != &codec->dapm) | |
2179 | continue; | |
2b97eabc RP |
2180 | |
2181 | /* only display widgets that burnm power */ | |
2182 | switch (w->id) { | |
2183 | case snd_soc_dapm_hp: | |
2184 | case snd_soc_dapm_mic: | |
2185 | case snd_soc_dapm_spk: | |
2186 | case snd_soc_dapm_line: | |
2187 | case snd_soc_dapm_micbias: | |
2188 | case snd_soc_dapm_dac: | |
2189 | case snd_soc_dapm_adc: | |
2190 | case snd_soc_dapm_pga: | |
d88429a6 | 2191 | case snd_soc_dapm_out_drv: |
2b97eabc | 2192 | case snd_soc_dapm_mixer: |
ca9c1aae | 2193 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2194 | case snd_soc_dapm_supply: |
62ea874a | 2195 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2196 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2197 | if (w->name) |
2198 | count += sprintf(buf + count, "%s: %s\n", | |
2199 | w->name, w->power ? "On":"Off"); | |
2200 | break; | |
2201 | default: | |
2202 | break; | |
2203 | } | |
2204 | } | |
2205 | ||
ce6120cc | 2206 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2207 | case SND_SOC_BIAS_ON: |
2208 | state = "On"; | |
2b97eabc | 2209 | break; |
0be9898a MB |
2210 | case SND_SOC_BIAS_PREPARE: |
2211 | state = "Prepare"; | |
2b97eabc | 2212 | break; |
0be9898a MB |
2213 | case SND_SOC_BIAS_STANDBY: |
2214 | state = "Standby"; | |
2b97eabc | 2215 | break; |
0be9898a MB |
2216 | case SND_SOC_BIAS_OFF: |
2217 | state = "Off"; | |
2b97eabc RP |
2218 | break; |
2219 | } | |
2220 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2221 | ||
2222 | return count; | |
2223 | } | |
2224 | ||
2225 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2226 | ||
2227 | int snd_soc_dapm_sys_add(struct device *dev) | |
2228 | { | |
12ef193d | 2229 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2230 | } |
2231 | ||
2232 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2233 | { | |
aef90843 | 2234 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2235 | } |
2236 | ||
8872293f LPC |
2237 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2238 | { | |
2239 | list_del(&path->list_sink); | |
2240 | list_del(&path->list_source); | |
5106b92f | 2241 | list_del(&path->list_kcontrol); |
8872293f | 2242 | list_del(&path->list); |
8872293f LPC |
2243 | kfree(path); |
2244 | } | |
2245 | ||
2b97eabc | 2246 | /* free all dapm widgets and resources */ |
ce6120cc | 2247 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2248 | { |
2249 | struct snd_soc_dapm_widget *w, *next_w; | |
2250 | struct snd_soc_dapm_path *p, *next_p; | |
2251 | ||
97c866de JN |
2252 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2253 | if (w->dapm != dapm) | |
2254 | continue; | |
2b97eabc | 2255 | list_del(&w->list); |
8ddab3f5 JN |
2256 | /* |
2257 | * remove source and sink paths associated to this widget. | |
2258 | * While removing the path, remove reference to it from both | |
2259 | * source and sink widgets so that path is removed only once. | |
2260 | */ | |
8872293f LPC |
2261 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2262 | dapm_free_path(p); | |
2263 | ||
2264 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2265 | dapm_free_path(p); | |
2266 | ||
fad59888 | 2267 | kfree(w->kcontrols); |
ead9b919 | 2268 | kfree(w->name); |
2b97eabc RP |
2269 | kfree(w); |
2270 | } | |
2b97eabc RP |
2271 | } |
2272 | ||
91a5fca4 LPC |
2273 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2274 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2275 | bool search_other_contexts) | |
a5302181 LG |
2276 | { |
2277 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2278 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2279 | |
97c866de | 2280 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2281 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2282 | if (w->dapm == dapm) |
2283 | return w; | |
2284 | else | |
2285 | fallback = w; | |
a5302181 LG |
2286 | } |
2287 | } | |
2288 | ||
91a5fca4 LPC |
2289 | if (search_other_contexts) |
2290 | return fallback; | |
2291 | ||
2292 | return NULL; | |
2293 | } | |
2294 | ||
2295 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2296 | const char *pin, int status) | |
2297 | { | |
2298 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2299 | ||
2300 | if (!w) { | |
30a6a1a4 | 2301 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2302 | return -EINVAL; |
0d86733c MB |
2303 | } |
2304 | ||
1a8b2d9d MB |
2305 | if (w->connected != status) |
2306 | dapm_mark_dirty(w, "pin configuration"); | |
2307 | ||
91a5fca4 LPC |
2308 | w->connected = status; |
2309 | if (status == 0) | |
2310 | w->force = 0; | |
2311 | ||
2312 | return 0; | |
a5302181 LG |
2313 | } |
2314 | ||
2b97eabc | 2315 | /** |
a5302181 | 2316 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2317 | * @dapm: DAPM context |
2b97eabc RP |
2318 | * |
2319 | * Walks all dapm audio paths and powers widgets according to their | |
2320 | * stream or path usage. | |
2321 | * | |
2322 | * Returns 0 for success. | |
2323 | */ | |
ce6120cc | 2324 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2325 | { |
a73fb2df LG |
2326 | int ret; |
2327 | ||
4f4c0072 MB |
2328 | /* |
2329 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2330 | * silly DAPM runs during card startup. | |
2331 | */ | |
2332 | if (!dapm->card || !dapm->card->instantiated) | |
2333 | return 0; | |
2334 | ||
3cd04343 | 2335 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
95dd5cd6 | 2336 | ret = dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df LG |
2337 | mutex_unlock(&dapm->card->dapm_mutex); |
2338 | return ret; | |
2b97eabc | 2339 | } |
a5302181 | 2340 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2341 | |
2553628e LPC |
2342 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2343 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2344 | const char *control, | |
2345 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2346 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2347 | { |
2348 | struct snd_soc_dapm_path *path; | |
2553628e | 2349 | int ret; |
2b97eabc RP |
2350 | |
2351 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2352 | if (!path) | |
2353 | return -ENOMEM; | |
2354 | ||
2355 | path->source = wsource; | |
2356 | path->sink = wsink; | |
2553628e | 2357 | path->connected = connected; |
2b97eabc | 2358 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2359 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2360 | INIT_LIST_HEAD(&path->list_source); |
2361 | INIT_LIST_HEAD(&path->list_sink); | |
2362 | ||
2363 | /* check for external widgets */ | |
2364 | if (wsink->id == snd_soc_dapm_input) { | |
2365 | if (wsource->id == snd_soc_dapm_micbias || | |
2366 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2367 | wsource->id == snd_soc_dapm_line || |
2368 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2369 | wsink->ext = 1; |
2370 | } | |
2371 | if (wsource->id == snd_soc_dapm_output) { | |
2372 | if (wsink->id == snd_soc_dapm_spk || | |
2373 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2374 | wsink->id == snd_soc_dapm_line || |
2375 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2376 | wsource->ext = 1; |
2377 | } | |
2378 | ||
34742cb0 LPC |
2379 | dapm_mark_dirty(wsource, "Route added"); |
2380 | dapm_mark_dirty(wsink, "Route added"); | |
2381 | ||
2b97eabc RP |
2382 | /* connect static paths */ |
2383 | if (control == NULL) { | |
8ddab3f5 | 2384 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2385 | list_add(&path->list_sink, &wsink->sources); |
2386 | list_add(&path->list_source, &wsource->sinks); | |
2387 | path->connect = 1; | |
2388 | return 0; | |
2389 | } | |
2390 | ||
2391 | /* connect dynamic paths */ | |
dc2bea61 | 2392 | switch (wsink->id) { |
2b97eabc RP |
2393 | case snd_soc_dapm_adc: |
2394 | case snd_soc_dapm_dac: | |
2395 | case snd_soc_dapm_pga: | |
d88429a6 | 2396 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2397 | case snd_soc_dapm_input: |
2398 | case snd_soc_dapm_output: | |
1ab97c8c | 2399 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2400 | case snd_soc_dapm_micbias: |
2401 | case snd_soc_dapm_vmid: | |
2402 | case snd_soc_dapm_pre: | |
2403 | case snd_soc_dapm_post: | |
246d0a17 | 2404 | case snd_soc_dapm_supply: |
62ea874a | 2405 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2406 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2407 | case snd_soc_dapm_aif_in: |
2408 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2409 | case snd_soc_dapm_dai_in: |
2410 | case snd_soc_dapm_dai_out: | |
c74184ed | 2411 | case snd_soc_dapm_dai_link: |
57295073 | 2412 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2413 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2414 | list_add(&path->list_sink, &wsink->sources); |
2415 | list_add(&path->list_source, &wsource->sinks); | |
2416 | path->connect = 1; | |
2417 | return 0; | |
2418 | case snd_soc_dapm_mux: | |
24ff33ac | 2419 | case snd_soc_dapm_virt_mux: |
74155556 | 2420 | case snd_soc_dapm_value_mux: |
ce6120cc | 2421 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2422 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2423 | if (ret != 0) |
2424 | goto err; | |
2425 | break; | |
2426 | case snd_soc_dapm_switch: | |
2427 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2428 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2429 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2430 | if (ret != 0) |
2431 | goto err; | |
2432 | break; | |
2433 | case snd_soc_dapm_hp: | |
2434 | case snd_soc_dapm_mic: | |
2435 | case snd_soc_dapm_line: | |
2436 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2437 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2438 | list_add(&path->list_sink, &wsink->sources); |
2439 | list_add(&path->list_source, &wsource->sinks); | |
2440 | path->connect = 0; | |
2441 | return 0; | |
2442 | } | |
fabd0384 | 2443 | |
2b97eabc | 2444 | return 0; |
2553628e LPC |
2445 | err: |
2446 | kfree(path); | |
2447 | return ret; | |
2448 | } | |
2b97eabc | 2449 | |
2553628e LPC |
2450 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
2451 | const struct snd_soc_dapm_route *route) | |
2452 | { | |
2453 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2454 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2455 | const char *sink; | |
2456 | const char *source; | |
2457 | char prefixed_sink[80]; | |
2458 | char prefixed_source[80]; | |
2459 | int ret; | |
2460 | ||
2461 | if (dapm->codec && dapm->codec->name_prefix) { | |
2462 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2463 | dapm->codec->name_prefix, route->sink); | |
2464 | sink = prefixed_sink; | |
2465 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2466 | dapm->codec->name_prefix, route->source); | |
2467 | source = prefixed_source; | |
2468 | } else { | |
2469 | sink = route->sink; | |
2470 | source = route->source; | |
2471 | } | |
2472 | ||
2473 | /* | |
2474 | * find src and dest widgets over all widgets but favor a widget from | |
2475 | * current DAPM context | |
2476 | */ | |
2477 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2478 | if (!wsink && !(strcmp(w->name, sink))) { | |
2479 | wtsink = w; | |
2480 | if (w->dapm == dapm) | |
2481 | wsink = w; | |
2482 | continue; | |
2483 | } | |
2484 | if (!wsource && !(strcmp(w->name, source))) { | |
2485 | wtsource = w; | |
2486 | if (w->dapm == dapm) | |
2487 | wsource = w; | |
2488 | } | |
2489 | } | |
2490 | /* use widget from another DAPM context if not found from this */ | |
2491 | if (!wsink) | |
2492 | wsink = wtsink; | |
2493 | if (!wsource) | |
2494 | wsource = wtsource; | |
2495 | ||
2496 | if (wsource == NULL) { | |
2497 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2498 | route->source); | |
2499 | return -ENODEV; | |
2500 | } | |
2501 | if (wsink == NULL) { | |
2502 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2503 | route->sink); | |
2504 | return -ENODEV; | |
2505 | } | |
2506 | ||
2507 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2508 | route->connected); | |
2509 | if (ret) | |
2510 | goto err; | |
2511 | ||
2512 | return 0; | |
2b97eabc | 2513 | err: |
30a6a1a4 | 2514 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2515 | source, route->control, sink); |
2b97eabc RP |
2516 | return ret; |
2517 | } | |
105f1c28 | 2518 | |
efcc3c61 MB |
2519 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2520 | const struct snd_soc_dapm_route *route) | |
2521 | { | |
2522 | struct snd_soc_dapm_path *path, *p; | |
2523 | const char *sink; | |
2524 | const char *source; | |
2525 | char prefixed_sink[80]; | |
2526 | char prefixed_source[80]; | |
2527 | ||
2528 | if (route->control) { | |
2529 | dev_err(dapm->dev, | |
30a6a1a4 | 2530 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2531 | return -EINVAL; |
2532 | } | |
2533 | ||
2534 | if (dapm->codec && dapm->codec->name_prefix) { | |
2535 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2536 | dapm->codec->name_prefix, route->sink); | |
2537 | sink = prefixed_sink; | |
2538 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2539 | dapm->codec->name_prefix, route->source); | |
2540 | source = prefixed_source; | |
2541 | } else { | |
2542 | sink = route->sink; | |
2543 | source = route->source; | |
2544 | } | |
2545 | ||
2546 | path = NULL; | |
2547 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2548 | if (strcmp(p->source->name, source) != 0) | |
2549 | continue; | |
2550 | if (strcmp(p->sink->name, sink) != 0) | |
2551 | continue; | |
2552 | path = p; | |
2553 | break; | |
2554 | } | |
2555 | ||
2556 | if (path) { | |
2557 | dapm_mark_dirty(path->source, "Route removed"); | |
2558 | dapm_mark_dirty(path->sink, "Route removed"); | |
2559 | ||
8872293f | 2560 | dapm_free_path(path); |
efcc3c61 | 2561 | } else { |
30a6a1a4 | 2562 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2563 | source, sink); |
2564 | } | |
2565 | ||
2566 | return 0; | |
2567 | } | |
2568 | ||
105f1c28 MB |
2569 | /** |
2570 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2571 | * @dapm: DAPM context |
105f1c28 MB |
2572 | * @route: audio routes |
2573 | * @num: number of routes | |
2574 | * | |
2575 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2576 | * the widget receiving the audio signal, whilst the source is the sender | |
2577 | * of the audio signal. | |
2578 | * | |
2579 | * Returns 0 for success else error. On error all resources can be freed | |
2580 | * with a call to snd_soc_card_free(). | |
2581 | */ | |
ce6120cc | 2582 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2583 | const struct snd_soc_dapm_route *route, int num) |
2584 | { | |
62d4a4b9 | 2585 | int i, r, ret = 0; |
105f1c28 | 2586 | |
a73fb2df | 2587 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2588 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2589 | r = snd_soc_dapm_add_route(dapm, route); |
2590 | if (r < 0) { | |
30a6a1a4 LG |
2591 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2592 | route->source, | |
2593 | route->control ? route->control : "direct", | |
2594 | route->sink); | |
62d4a4b9 | 2595 | ret = r; |
105f1c28 MB |
2596 | } |
2597 | route++; | |
2598 | } | |
a73fb2df | 2599 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2600 | |
60884c27 | 2601 | return ret; |
105f1c28 MB |
2602 | } |
2603 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2604 | ||
efcc3c61 MB |
2605 | /** |
2606 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2607 | * @dapm: DAPM context | |
2608 | * @route: audio routes | |
2609 | * @num: number of routes | |
2610 | * | |
2611 | * Removes routes from the DAPM context. | |
2612 | */ | |
2613 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2614 | const struct snd_soc_dapm_route *route, int num) | |
2615 | { | |
2616 | int i, ret = 0; | |
2617 | ||
2618 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2619 | for (i = 0; i < num; i++) { | |
2620 | snd_soc_dapm_del_route(dapm, route); | |
2621 | route++; | |
2622 | } | |
2623 | mutex_unlock(&dapm->card->dapm_mutex); | |
2624 | ||
2625 | return ret; | |
2626 | } | |
2627 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2628 | ||
bf3a9e13 MB |
2629 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2630 | const struct snd_soc_dapm_route *route) | |
2631 | { | |
2632 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2633 | route->source, | |
2634 | true); | |
2635 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2636 | route->sink, | |
2637 | true); | |
2638 | struct snd_soc_dapm_path *path; | |
2639 | int count = 0; | |
2640 | ||
2641 | if (!source) { | |
30a6a1a4 | 2642 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2643 | route->source); |
2644 | return -ENODEV; | |
2645 | } | |
2646 | ||
2647 | if (!sink) { | |
30a6a1a4 | 2648 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2649 | route->sink); |
2650 | return -ENODEV; | |
2651 | } | |
2652 | ||
2653 | if (route->control || route->connected) | |
30a6a1a4 | 2654 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2655 | route->source, route->sink); |
2656 | ||
2657 | list_for_each_entry(path, &source->sinks, list_source) { | |
2658 | if (path->sink == sink) { | |
2659 | path->weak = 1; | |
2660 | count++; | |
2661 | } | |
2662 | } | |
2663 | ||
2664 | if (count == 0) | |
30a6a1a4 | 2665 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2666 | route->source, route->sink); |
2667 | if (count > 1) | |
30a6a1a4 | 2668 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2669 | count, route->source, route->sink); |
2670 | ||
2671 | return 0; | |
2672 | } | |
2673 | ||
2674 | /** | |
2675 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2676 | * @dapm: DAPM context | |
2677 | * @route: audio routes | |
2678 | * @num: number of routes | |
2679 | * | |
2680 | * Mark existing routes matching those specified in the passed array | |
2681 | * as being weak, meaning that they are ignored for the purpose of | |
2682 | * power decisions. The main intended use case is for sidetone paths | |
2683 | * which couple audio between other independent paths if they are both | |
2684 | * active in order to make the combination work better at the user | |
2685 | * level but which aren't intended to be "used". | |
2686 | * | |
2687 | * Note that CODEC drivers should not use this as sidetone type paths | |
2688 | * can frequently also be used as bypass paths. | |
2689 | */ | |
2690 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2691 | const struct snd_soc_dapm_route *route, int num) | |
2692 | { | |
2693 | int i, err; | |
2694 | int ret = 0; | |
2695 | ||
a73fb2df | 2696 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2697 | for (i = 0; i < num; i++) { |
2698 | err = snd_soc_dapm_weak_route(dapm, route); | |
2699 | if (err) | |
2700 | ret = err; | |
2701 | route++; | |
2702 | } | |
a73fb2df | 2703 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2704 | |
2705 | return ret; | |
2706 | } | |
2707 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2708 | ||
2b97eabc RP |
2709 | /** |
2710 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2711 | * @dapm: DAPM context |
2b97eabc RP |
2712 | * |
2713 | * Checks the codec for any new dapm widgets and creates them if found. | |
2714 | * | |
2715 | * Returns 0 for success. | |
2716 | */ | |
824ef826 | 2717 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2718 | { |
2719 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2720 | unsigned int val; |
2b97eabc | 2721 | |
95dd5cd6 | 2722 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2723 | |
95dd5cd6 | 2724 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2725 | { |
2726 | if (w->new) | |
2727 | continue; | |
2728 | ||
fad59888 SW |
2729 | if (w->num_kcontrols) { |
2730 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2731 | sizeof(struct snd_kcontrol *), | |
2732 | GFP_KERNEL); | |
a73fb2df | 2733 | if (!w->kcontrols) { |
95dd5cd6 | 2734 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2735 | return -ENOMEM; |
a73fb2df | 2736 | } |
fad59888 SW |
2737 | } |
2738 | ||
2b97eabc RP |
2739 | switch(w->id) { |
2740 | case snd_soc_dapm_switch: | |
2741 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2742 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2743 | dapm_new_mixer(w); |
2b97eabc RP |
2744 | break; |
2745 | case snd_soc_dapm_mux: | |
24ff33ac | 2746 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2747 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2748 | dapm_new_mux(w); |
2b97eabc | 2749 | break; |
2b97eabc | 2750 | case snd_soc_dapm_pga: |
d88429a6 | 2751 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2752 | dapm_new_pga(w); |
2b97eabc | 2753 | break; |
7ca3a18b | 2754 | default: |
2b97eabc RP |
2755 | break; |
2756 | } | |
b66a70d5 MB |
2757 | |
2758 | /* Read the initial power state from the device */ | |
2759 | if (w->reg >= 0) { | |
de9ba98b LPC |
2760 | val = soc_widget_read(w, w->reg) >> w->shift; |
2761 | val &= w->mask; | |
2762 | if (val == w->on_val) | |
b66a70d5 MB |
2763 | w->power = 1; |
2764 | } | |
2765 | ||
2b97eabc | 2766 | w->new = 1; |
d5d1e0be | 2767 | |
7508b12a | 2768 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2769 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2770 | } |
2771 | ||
95dd5cd6 LPC |
2772 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2773 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2774 | return 0; |
2775 | } | |
2776 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2777 | ||
2778 | /** | |
2779 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2780 | * @kcontrol: mixer control | |
ac11a2b3 | 2781 | * @ucontrol: control element information |
2b97eabc RP |
2782 | * |
2783 | * Callback to get the value of a dapm mixer control. | |
2784 | * | |
2785 | * Returns 0 for success. | |
2786 | */ | |
2787 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2788 | struct snd_ctl_elem_value *ucontrol) | |
2789 | { | |
eee5d7f9 | 2790 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2791 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2792 | struct soc_mixer_control *mc = |
2793 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2794 | unsigned int reg = mc->reg; |
2795 | unsigned int shift = mc->shift; | |
4eaa9819 | 2796 | int max = mc->max; |
815ecf8d | 2797 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2798 | unsigned int invert = mc->invert; |
57295073 | 2799 | unsigned int val; |
da602ab8 BT |
2800 | |
2801 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2802 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2803 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2804 | kcontrol->id.name); |
2b97eabc | 2805 | |
57295073 LPC |
2806 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2807 | if (dapm_kcontrol_is_powered(kcontrol)) | |
2808 | val = (snd_soc_read(codec, reg) >> shift) & mask; | |
2809 | else | |
2810 | val = dapm_kcontrol_get_value(kcontrol); | |
2811 | mutex_unlock(&card->dapm_mutex); | |
2812 | ||
da602ab8 | 2813 | if (invert) |
57295073 LPC |
2814 | ucontrol->value.integer.value[0] = max - val; |
2815 | else | |
2816 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2817 | |
2818 | return 0; | |
2819 | } | |
2820 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2821 | ||
2822 | /** | |
2823 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2824 | * @kcontrol: mixer control | |
ac11a2b3 | 2825 | * @ucontrol: control element information |
2b97eabc RP |
2826 | * |
2827 | * Callback to set the value of a dapm mixer control. | |
2828 | * | |
2829 | * Returns 0 for success. | |
2830 | */ | |
2831 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2832 | struct snd_ctl_elem_value *ucontrol) | |
2833 | { | |
eee5d7f9 | 2834 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2835 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2836 | struct soc_mixer_control *mc = |
2837 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2838 | unsigned int reg = mc->reg; |
2839 | unsigned int shift = mc->shift; | |
4eaa9819 | 2840 | int max = mc->max; |
815ecf8d JS |
2841 | unsigned int mask = (1 << fls(max)) - 1; |
2842 | unsigned int invert = mc->invert; | |
e9cf7049 | 2843 | unsigned int val; |
97404f2e MB |
2844 | int connect, change; |
2845 | struct snd_soc_dapm_update update; | |
2b97eabc | 2846 | |
da602ab8 | 2847 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2848 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2849 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2850 | kcontrol->id.name); |
2851 | ||
2b97eabc | 2852 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2853 | connect = !!val; |
2b97eabc RP |
2854 | |
2855 | if (invert) | |
a7a4ac86 | 2856 | val = max - val; |
2b97eabc | 2857 | |
3cd04343 | 2858 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2859 | |
57295073 LPC |
2860 | dapm_kcontrol_set_value(kcontrol, val); |
2861 | ||
2862 | mask = mask << shift; | |
2863 | val = val << shift; | |
2864 | ||
eee5d7f9 | 2865 | change = snd_soc_test_bits(codec, reg, mask, val); |
97404f2e | 2866 | if (change) { |
ce6cfaf1 LPC |
2867 | update.kcontrol = kcontrol; |
2868 | update.reg = reg; | |
2869 | update.mask = mask; | |
2870 | update.val = val; | |
97404f2e | 2871 | |
564c6504 | 2872 | card->update = &update; |
97404f2e | 2873 | |
95dd5cd6 | 2874 | soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2875 | |
564c6504 | 2876 | card->update = NULL; |
283375ce MB |
2877 | } |
2878 | ||
a73fb2df | 2879 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2880 | return change; |
2b97eabc RP |
2881 | } |
2882 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2883 | ||
2884 | /** | |
2885 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2886 | * @kcontrol: mixer control | |
ac11a2b3 | 2887 | * @ucontrol: control element information |
2b97eabc RP |
2888 | * |
2889 | * Callback to get the value of a dapm enumerated double mixer control. | |
2890 | * | |
2891 | * Returns 0 for success. | |
2892 | */ | |
2893 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2894 | struct snd_ctl_elem_value *ucontrol) | |
2895 | { | |
eee5d7f9 | 2896 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2897 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2898 | unsigned int val; |
2b97eabc | 2899 | |
eee5d7f9 | 2900 | val = snd_soc_read(codec, e->reg); |
86767b7d | 2901 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2902 | if (e->shift_l != e->shift_r) |
2903 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2904 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2905 | |
2906 | return 0; | |
2907 | } | |
2908 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2909 | ||
2910 | /** | |
2911 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2912 | * @kcontrol: mixer control | |
ac11a2b3 | 2913 | * @ucontrol: control element information |
2b97eabc RP |
2914 | * |
2915 | * Callback to set the value of a dapm enumerated double mixer control. | |
2916 | * | |
2917 | * Returns 0 for success. | |
2918 | */ | |
2919 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2920 | struct snd_ctl_elem_value *ucontrol) | |
2921 | { | |
cf7c1de2 | 2922 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2923 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2924 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2925 | unsigned int val, mux, change; |
86767b7d | 2926 | unsigned int mask; |
97404f2e | 2927 | struct snd_soc_dapm_update update; |
2b97eabc | 2928 | |
f8ba0b7b | 2929 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2930 | return -EINVAL; |
2931 | mux = ucontrol->value.enumerated.item[0]; | |
2932 | val = mux << e->shift_l; | |
86767b7d | 2933 | mask = e->mask << e->shift_l; |
2b97eabc | 2934 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2935 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2936 | return -EINVAL; |
2937 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2938 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2939 | } |
2940 | ||
3cd04343 | 2941 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2942 | |
eee5d7f9 | 2943 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2944 | if (change) { |
ce6cfaf1 LPC |
2945 | update.kcontrol = kcontrol; |
2946 | update.reg = e->reg; | |
2947 | update.mask = mask; | |
2948 | update.val = val; | |
564c6504 | 2949 | card->update = &update; |
1642e3d4 | 2950 | |
95dd5cd6 | 2951 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
1642e3d4 | 2952 | |
564c6504 | 2953 | card->update = NULL; |
fafd2176 | 2954 | } |
2b97eabc | 2955 | |
a73fb2df | 2956 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2957 | return change; |
2b97eabc RP |
2958 | } |
2959 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2960 | ||
d2b247a8 MB |
2961 | /** |
2962 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2963 | * @kcontrol: mixer control | |
2964 | * @ucontrol: control element information | |
2965 | * | |
2966 | * Returns 0 for success. | |
2967 | */ | |
2968 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2969 | struct snd_ctl_elem_value *ucontrol) | |
2970 | { | |
cf7c1de2 | 2971 | ucontrol->value.enumerated.item[0] = dapm_kcontrol_get_value(kcontrol); |
d2b247a8 MB |
2972 | return 0; |
2973 | } | |
2974 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2975 | ||
2976 | /** | |
2977 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2978 | * @kcontrol: mixer control | |
2979 | * @ucontrol: control element information | |
2980 | * | |
2981 | * Returns 0 for success. | |
2982 | */ | |
2983 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2984 | struct snd_ctl_elem_value *ucontrol) | |
2985 | { | |
cf7c1de2 | 2986 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2987 | struct snd_soc_card *card = codec->card; |
cf7c1de2 | 2988 | unsigned int value; |
d2b247a8 MB |
2989 | struct soc_enum *e = |
2990 | (struct soc_enum *)kcontrol->private_value; | |
2991 | int change; | |
d2b247a8 MB |
2992 | |
2993 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2994 | return -EINVAL; | |
2995 | ||
3cd04343 | 2996 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 | 2997 | |
cf7c1de2 LPC |
2998 | value = ucontrol->value.enumerated.item[0]; |
2999 | change = dapm_kcontrol_set_value(kcontrol, value); | |
3000 | if (change) | |
3001 | soc_dapm_mux_update_power(card, kcontrol, value, e); | |
d2b247a8 | 3002 | |
a73fb2df | 3003 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 3004 | return change; |
d2b247a8 MB |
3005 | } |
3006 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
3007 | ||
2e72f8e3 PU |
3008 | /** |
3009 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
3010 | * callback | |
3011 | * @kcontrol: mixer control | |
3012 | * @ucontrol: control element information | |
3013 | * | |
3014 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
3015 | * | |
3016 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3017 | * used for handling bitfield coded enumeration for example. | |
3018 | * | |
3019 | * Returns 0 for success. | |
3020 | */ | |
3021 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
3022 | struct snd_ctl_elem_value *ucontrol) | |
3023 | { | |
eee5d7f9 | 3024 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
74155556 | 3025 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 3026 | unsigned int reg_val, val, mux; |
2e72f8e3 | 3027 | |
eee5d7f9 | 3028 | reg_val = snd_soc_read(codec, e->reg); |
2e72f8e3 PU |
3029 | val = (reg_val >> e->shift_l) & e->mask; |
3030 | for (mux = 0; mux < e->max; mux++) { | |
3031 | if (val == e->values[mux]) | |
3032 | break; | |
3033 | } | |
3034 | ucontrol->value.enumerated.item[0] = mux; | |
3035 | if (e->shift_l != e->shift_r) { | |
3036 | val = (reg_val >> e->shift_r) & e->mask; | |
3037 | for (mux = 0; mux < e->max; mux++) { | |
3038 | if (val == e->values[mux]) | |
3039 | break; | |
3040 | } | |
3041 | ucontrol->value.enumerated.item[1] = mux; | |
3042 | } | |
3043 | ||
3044 | return 0; | |
3045 | } | |
3046 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
3047 | ||
3048 | /** | |
3049 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
3050 | * callback | |
3051 | * @kcontrol: mixer control | |
3052 | * @ucontrol: control element information | |
3053 | * | |
3054 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
3055 | * | |
3056 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3057 | * used for handling bitfield coded enumeration for example. | |
3058 | * | |
3059 | * Returns 0 for success. | |
3060 | */ | |
3061 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
3062 | struct snd_ctl_elem_value *ucontrol) | |
3063 | { | |
cf7c1de2 | 3064 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3065 | struct snd_soc_card *card = codec->card; |
74155556 | 3066 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 3067 | unsigned int val, mux, change; |
46f5822f | 3068 | unsigned int mask; |
97404f2e | 3069 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
3070 | |
3071 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
3072 | return -EINVAL; | |
3073 | mux = ucontrol->value.enumerated.item[0]; | |
3074 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
3075 | mask = e->mask << e->shift_l; | |
3076 | if (e->shift_l != e->shift_r) { | |
3077 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
3078 | return -EINVAL; | |
3079 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
3080 | mask |= e->mask << e->shift_r; | |
3081 | } | |
3082 | ||
3cd04343 | 3083 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3084 | |
eee5d7f9 | 3085 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 3086 | if (change) { |
ce6cfaf1 LPC |
3087 | update.kcontrol = kcontrol; |
3088 | update.reg = e->reg; | |
3089 | update.mask = mask; | |
3090 | update.val = val; | |
564c6504 | 3091 | card->update = &update; |
1642e3d4 | 3092 | |
95dd5cd6 | 3093 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
fafd2176 | 3094 | |
564c6504 | 3095 | card->update = NULL; |
fafd2176 | 3096 | } |
2e72f8e3 | 3097 | |
a73fb2df | 3098 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 3099 | return change; |
2e72f8e3 PU |
3100 | } |
3101 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
3102 | ||
8b37dbd2 MB |
3103 | /** |
3104 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3105 | * | |
3106 | * @kcontrol: mixer control | |
3107 | * @uinfo: control element information | |
3108 | * | |
3109 | * Callback to provide information about a pin switch control. | |
3110 | */ | |
3111 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3112 | struct snd_ctl_elem_info *uinfo) | |
3113 | { | |
3114 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3115 | uinfo->count = 1; | |
3116 | uinfo->value.integer.min = 0; | |
3117 | uinfo->value.integer.max = 1; | |
3118 | ||
3119 | return 0; | |
3120 | } | |
3121 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3122 | ||
3123 | /** | |
3124 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3125 | * | |
3126 | * @kcontrol: mixer control | |
3127 | * @ucontrol: Value | |
3128 | */ | |
3129 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3130 | struct snd_ctl_elem_value *ucontrol) | |
3131 | { | |
48a8c394 | 3132 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3133 | const char *pin = (const char *)kcontrol->private_value; |
3134 | ||
3cd04343 | 3135 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3136 | |
3137 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3138 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3139 | |
a73fb2df | 3140 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3141 | |
3142 | return 0; | |
3143 | } | |
3144 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3145 | ||
3146 | /** | |
3147 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3148 | * | |
3149 | * @kcontrol: mixer control | |
3150 | * @ucontrol: Value | |
3151 | */ | |
3152 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3153 | struct snd_ctl_elem_value *ucontrol) | |
3154 | { | |
48a8c394 | 3155 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3156 | const char *pin = (const char *)kcontrol->private_value; |
3157 | ||
3cd04343 | 3158 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3159 | |
3160 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3161 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3162 | else |
48a8c394 | 3163 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3164 | |
a73fb2df | 3165 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3166 | |
a73fb2df | 3167 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3168 | return 0; |
3169 | } | |
3170 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3171 | ||
5ba06fc9 MB |
3172 | static struct snd_soc_dapm_widget * |
3173 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3174 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3175 | { |
3176 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3177 | int ret; |
2b97eabc RP |
3178 | |
3179 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3180 | return NULL; |
2b97eabc | 3181 | |
62ea874a MB |
3182 | switch (w->id) { |
3183 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3184 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3185 | if (IS_ERR(w->regulator)) { | |
3186 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3187 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3188 | w->name, ret); |
5ba06fc9 | 3189 | return NULL; |
62ea874a | 3190 | } |
8784c77a | 3191 | |
de9ba98b | 3192 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3193 | ret = regulator_allow_bypass(w->regulator, true); |
3194 | if (ret != 0) | |
3195 | dev_warn(w->dapm->dev, | |
3196 | "ASoC: Failed to unbypass %s: %d\n", | |
3197 | w->name, ret); | |
3198 | } | |
62ea874a | 3199 | break; |
d7e7eb91 | 3200 | case snd_soc_dapm_clock_supply: |
165961ef | 3201 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3202 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3203 | if (IS_ERR(w->clk)) { |
3204 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3205 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3206 | w->name, ret); |
3207 | return NULL; | |
3208 | } | |
ec02995a MB |
3209 | #else |
3210 | return NULL; | |
3211 | #endif | |
d7e7eb91 | 3212 | break; |
62ea874a MB |
3213 | default: |
3214 | break; | |
3215 | } | |
2b97eabc | 3216 | |
88e8b9a8 | 3217 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3218 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3219 | dapm->codec->name_prefix, widget->name); | |
3220 | else | |
3221 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3222 | ||
ead9b919 JN |
3223 | if (w->name == NULL) { |
3224 | kfree(w); | |
5ba06fc9 | 3225 | return NULL; |
ead9b919 | 3226 | } |
ead9b919 | 3227 | |
7ca3a18b MB |
3228 | switch (w->id) { |
3229 | case snd_soc_dapm_switch: | |
3230 | case snd_soc_dapm_mixer: | |
3231 | case snd_soc_dapm_mixer_named_ctl: | |
3232 | w->power_check = dapm_generic_check_power; | |
3233 | break; | |
3234 | case snd_soc_dapm_mux: | |
3235 | case snd_soc_dapm_virt_mux: | |
3236 | case snd_soc_dapm_value_mux: | |
3237 | w->power_check = dapm_generic_check_power; | |
3238 | break; | |
4616274d | 3239 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3240 | w->power_check = dapm_adc_check_power; |
3241 | break; | |
4616274d | 3242 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3243 | w->power_check = dapm_dac_check_power; |
3244 | break; | |
63c69a6e MB |
3245 | case snd_soc_dapm_adc: |
3246 | case snd_soc_dapm_aif_out: | |
3247 | case snd_soc_dapm_dac: | |
3248 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3249 | case snd_soc_dapm_pga: |
3250 | case snd_soc_dapm_out_drv: | |
3251 | case snd_soc_dapm_input: | |
3252 | case snd_soc_dapm_output: | |
3253 | case snd_soc_dapm_micbias: | |
3254 | case snd_soc_dapm_spk: | |
3255 | case snd_soc_dapm_hp: | |
3256 | case snd_soc_dapm_mic: | |
3257 | case snd_soc_dapm_line: | |
c74184ed | 3258 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3259 | w->power_check = dapm_generic_check_power; |
3260 | break; | |
3261 | case snd_soc_dapm_supply: | |
62ea874a | 3262 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3263 | case snd_soc_dapm_clock_supply: |
57295073 | 3264 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3265 | w->power_check = dapm_supply_check_power; |
3266 | break; | |
3267 | default: | |
3268 | w->power_check = dapm_always_on_check_power; | |
3269 | break; | |
3270 | } | |
3271 | ||
ce6120cc LG |
3272 | w->dapm = dapm; |
3273 | w->codec = dapm->codec; | |
b7950641 | 3274 | w->platform = dapm->platform; |
2b97eabc RP |
3275 | INIT_LIST_HEAD(&w->sources); |
3276 | INIT_LIST_HEAD(&w->sinks); | |
3277 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3278 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3279 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3280 | |
3281 | /* machine layer set ups unconnected pins and insertions */ | |
3282 | w->connected = 1; | |
5ba06fc9 | 3283 | return w; |
2b97eabc | 3284 | } |
2b97eabc | 3285 | |
4ba1327a MB |
3286 | /** |
3287 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3288 | * @dapm: DAPM context |
4ba1327a MB |
3289 | * @widget: widget array |
3290 | * @num: number of widgets | |
3291 | * | |
3292 | * Creates new DAPM controls based upon the templates. | |
3293 | * | |
3294 | * Returns 0 for success else error. | |
3295 | */ | |
ce6120cc | 3296 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3297 | const struct snd_soc_dapm_widget *widget, |
3298 | int num) | |
3299 | { | |
5ba06fc9 MB |
3300 | struct snd_soc_dapm_widget *w; |
3301 | int i; | |
60884c27 | 3302 | int ret = 0; |
4ba1327a | 3303 | |
a73fb2df | 3304 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3305 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3306 | w = snd_soc_dapm_new_control(dapm, widget); |
3307 | if (!w) { | |
f7d41ae8 | 3308 | dev_err(dapm->dev, |
5ba06fc9 MB |
3309 | "ASoC: Failed to create DAPM control %s\n", |
3310 | widget->name); | |
60884c27 DC |
3311 | ret = -ENOMEM; |
3312 | break; | |
b8b33cb5 | 3313 | } |
4ba1327a MB |
3314 | widget++; |
3315 | } | |
a73fb2df | 3316 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3317 | return ret; |
4ba1327a MB |
3318 | } |
3319 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3320 | ||
c74184ed MB |
3321 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3322 | struct snd_kcontrol *kcontrol, int event) | |
3323 | { | |
3324 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3325 | struct snd_soc_dai *source, *sink; | |
3326 | const struct snd_soc_pcm_stream *config = w->params; | |
3327 | struct snd_pcm_substream substream; | |
9747cec2 | 3328 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3329 | u64 fmt; |
3330 | int ret; | |
3331 | ||
3332 | BUG_ON(!config); | |
3333 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3334 | ||
3335 | /* We only support a single source and sink, pick the first */ | |
3336 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3337 | list_sink); | |
3338 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3339 | list_source); | |
3340 | ||
3341 | BUG_ON(!source_p || !sink_p); | |
3342 | BUG_ON(!sink_p->source || !source_p->sink); | |
3343 | BUG_ON(!source_p->source || !sink_p->sink); | |
3344 | ||
3345 | source = source_p->source->priv; | |
3346 | sink = sink_p->sink->priv; | |
3347 | ||
3348 | /* Be a little careful as we don't want to overflow the mask array */ | |
3349 | if (config->formats) { | |
3350 | fmt = ffs(config->formats) - 1; | |
3351 | } else { | |
30a6a1a4 | 3352 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3353 | config->formats); |
3354 | fmt = 0; | |
3355 | } | |
3356 | ||
3357 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3358 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3359 | if (!params) { | |
3360 | ret = -ENOMEM; | |
3361 | goto out; | |
3362 | } | |
3363 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3364 | |
9747cec2 | 3365 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3366 | config->rate_min; |
9747cec2 | 3367 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3368 | config->rate_max; |
3369 | ||
9747cec2 | 3370 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3371 | = config->channels_min; |
9747cec2 | 3372 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3373 | = config->channels_max; |
3374 | ||
3375 | memset(&substream, 0, sizeof(substream)); | |
3376 | ||
3377 | switch (event) { | |
3378 | case SND_SOC_DAPM_PRE_PMU: | |
3379 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3380 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3381 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3382 | params, source); |
c74184ed MB |
3383 | if (ret != 0) { |
3384 | dev_err(source->dev, | |
30a6a1a4 | 3385 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3386 | goto out; |
c74184ed MB |
3387 | } |
3388 | } | |
3389 | ||
3390 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3391 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3392 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3393 | sink); |
3394 | if (ret != 0) { | |
3395 | dev_err(sink->dev, | |
30a6a1a4 | 3396 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3397 | goto out; |
c74184ed MB |
3398 | } |
3399 | } | |
3400 | break; | |
3401 | ||
3402 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3403 | ret = snd_soc_dai_digital_mute(sink, 0, |
3404 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3405 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3406 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3407 | ret = 0; |
c74184ed MB |
3408 | break; |
3409 | ||
3410 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3411 | ret = snd_soc_dai_digital_mute(sink, 1, |
3412 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3413 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3414 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3415 | ret = 0; |
c74184ed MB |
3416 | break; |
3417 | ||
3418 | default: | |
3419 | BUG(); | |
3420 | return -EINVAL; | |
3421 | } | |
3422 | ||
9747cec2 MB |
3423 | out: |
3424 | kfree(params); | |
3425 | return ret; | |
c74184ed MB |
3426 | } |
3427 | ||
3428 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3429 | const struct snd_soc_pcm_stream *params, | |
3430 | struct snd_soc_dapm_widget *source, | |
3431 | struct snd_soc_dapm_widget *sink) | |
3432 | { | |
3433 | struct snd_soc_dapm_route routes[2]; | |
3434 | struct snd_soc_dapm_widget template; | |
3435 | struct snd_soc_dapm_widget *w; | |
3436 | size_t len; | |
3437 | char *link_name; | |
3438 | ||
3439 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3440 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3441 | if (!link_name) | |
3442 | return -ENOMEM; | |
3443 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3444 | ||
3445 | memset(&template, 0, sizeof(template)); | |
3446 | template.reg = SND_SOC_NOPM; | |
3447 | template.id = snd_soc_dapm_dai_link; | |
3448 | template.name = link_name; | |
3449 | template.event = snd_soc_dai_link_event; | |
3450 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3451 | SND_SOC_DAPM_PRE_PMD; | |
3452 | ||
30a6a1a4 | 3453 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3454 | |
3455 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3456 | if (!w) { | |
30a6a1a4 | 3457 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3458 | link_name); |
3459 | return -ENOMEM; | |
3460 | } | |
3461 | ||
3462 | w->params = params; | |
3463 | ||
3464 | memset(&routes, 0, sizeof(routes)); | |
3465 | ||
3466 | routes[0].source = source->name; | |
3467 | routes[0].sink = link_name; | |
3468 | routes[1].source = link_name; | |
3469 | routes[1].sink = sink->name; | |
3470 | ||
3471 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3472 | ARRAY_SIZE(routes)); | |
3473 | } | |
3474 | ||
888df395 MB |
3475 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3476 | struct snd_soc_dai *dai) | |
2b97eabc | 3477 | { |
888df395 | 3478 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3479 | struct snd_soc_dapm_widget *w; |
3480 | ||
888df395 MB |
3481 | WARN_ON(dapm->dev != dai->dev); |
3482 | ||
3483 | memset(&template, 0, sizeof(template)); | |
3484 | template.reg = SND_SOC_NOPM; | |
3485 | ||
3486 | if (dai->driver->playback.stream_name) { | |
4616274d | 3487 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3488 | template.name = dai->driver->playback.stream_name; |
3489 | template.sname = dai->driver->playback.stream_name; | |
3490 | ||
30a6a1a4 | 3491 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3492 | template.name); |
3493 | ||
3494 | w = snd_soc_dapm_new_control(dapm, &template); | |
3495 | if (!w) { | |
30a6a1a4 | 3496 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3497 | dai->driver->playback.stream_name); |
298402a3 | 3498 | return -ENOMEM; |
888df395 MB |
3499 | } |
3500 | ||
3501 | w->priv = dai; | |
3502 | dai->playback_widget = w; | |
3503 | } | |
3504 | ||
3505 | if (dai->driver->capture.stream_name) { | |
4616274d | 3506 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3507 | template.name = dai->driver->capture.stream_name; |
3508 | template.sname = dai->driver->capture.stream_name; | |
3509 | ||
30a6a1a4 | 3510 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3511 | template.name); |
3512 | ||
3513 | w = snd_soc_dapm_new_control(dapm, &template); | |
3514 | if (!w) { | |
30a6a1a4 | 3515 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3516 | dai->driver->capture.stream_name); |
298402a3 | 3517 | return -ENOMEM; |
888df395 MB |
3518 | } |
3519 | ||
3520 | w->priv = dai; | |
3521 | dai->capture_widget = w; | |
3522 | } | |
3523 | ||
3524 | return 0; | |
3525 | } | |
3526 | ||
3527 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3528 | { | |
3529 | struct snd_soc_dapm_widget *dai_w, *w; | |
3530 | struct snd_soc_dai *dai; | |
888df395 MB |
3531 | |
3532 | /* For each DAI widget... */ | |
3533 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3534 | switch (dai_w->id) { |
3535 | case snd_soc_dapm_dai_in: | |
3536 | case snd_soc_dapm_dai_out: | |
3537 | break; | |
3538 | default: | |
2b97eabc | 3539 | continue; |
4616274d | 3540 | } |
888df395 MB |
3541 | |
3542 | dai = dai_w->priv; | |
3543 | ||
3544 | /* ...find all widgets with the same stream and link them */ | |
3545 | list_for_each_entry(w, &card->widgets, list) { | |
3546 | if (w->dapm != dai_w->dapm) | |
3547 | continue; | |
3548 | ||
4616274d MB |
3549 | switch (w->id) { |
3550 | case snd_soc_dapm_dai_in: | |
3551 | case snd_soc_dapm_dai_out: | |
888df395 | 3552 | continue; |
4616274d MB |
3553 | default: |
3554 | break; | |
3555 | } | |
888df395 | 3556 | |
19c2c5f5 | 3557 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3558 | continue; |
3559 | ||
3560 | if (dai->driver->playback.stream_name && | |
3561 | strstr(w->sname, | |
3562 | dai->driver->playback.stream_name)) { | |
888df395 | 3563 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3564 | dai->playback_widget->name, w->name); |
888df395 | 3565 | |
2553628e LPC |
3566 | snd_soc_dapm_add_path(w->dapm, |
3567 | dai->playback_widget, w, NULL, NULL); | |
888df395 MB |
3568 | } |
3569 | ||
3570 | if (dai->driver->capture.stream_name && | |
3571 | strstr(w->sname, | |
3572 | dai->driver->capture.stream_name)) { | |
888df395 | 3573 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3574 | w->name, dai->capture_widget->name); |
888df395 | 3575 | |
2553628e LPC |
3576 | snd_soc_dapm_add_path(w->dapm, w, |
3577 | dai->capture_widget, NULL, NULL); | |
2b97eabc RP |
3578 | } |
3579 | } | |
3580 | } | |
2b97eabc | 3581 | |
888df395 MB |
3582 | return 0; |
3583 | } | |
64a648c2 | 3584 | |
d9b0951b LG |
3585 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3586 | int event) | |
2b97eabc | 3587 | { |
7bd3a6f3 | 3588 | |
d9b0951b LG |
3589 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3590 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3591 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3592 | |
d9b0951b LG |
3593 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3594 | w_cpu = cpu_dai->playback_widget; | |
3595 | w_codec = codec_dai->playback_widget; | |
3596 | } else { | |
3597 | w_cpu = cpu_dai->capture_widget; | |
3598 | w_codec = codec_dai->capture_widget; | |
3599 | } | |
2b97eabc | 3600 | |
d9b0951b | 3601 | if (w_cpu) { |
fe360685 | 3602 | |
d9b0951b LG |
3603 | dapm_mark_dirty(w_cpu, "stream event"); |
3604 | ||
3605 | switch (event) { | |
3606 | case SND_SOC_DAPM_STREAM_START: | |
3607 | w_cpu->active = 1; | |
3608 | break; | |
3609 | case SND_SOC_DAPM_STREAM_STOP: | |
3610 | w_cpu->active = 0; | |
3611 | break; | |
3612 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3613 | case SND_SOC_DAPM_STREAM_RESUME: | |
3614 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3615 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3616 | break; | |
3617 | } | |
3618 | } | |
3619 | ||
3620 | if (w_codec) { | |
3621 | ||
3622 | dapm_mark_dirty(w_codec, "stream event"); | |
3623 | ||
3624 | switch (event) { | |
3625 | case SND_SOC_DAPM_STREAM_START: | |
3626 | w_codec->active = 1; | |
3627 | break; | |
3628 | case SND_SOC_DAPM_STREAM_STOP: | |
3629 | w_codec->active = 0; | |
3630 | break; | |
3631 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3632 | case SND_SOC_DAPM_STREAM_RESUME: | |
3633 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3634 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3635 | break; | |
3636 | } | |
2b97eabc | 3637 | } |
2b97eabc | 3638 | |
95dd5cd6 | 3639 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3640 | } |
3641 | ||
3642 | /** | |
3643 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3644 | * @rtd: PCM runtime data | |
3645 | * @stream: stream name | |
3646 | * @event: stream event | |
3647 | * | |
3648 | * Sends a stream event to the dapm core. The core then makes any | |
3649 | * necessary widget power changes. | |
3650 | * | |
3651 | * Returns 0 for success else error. | |
3652 | */ | |
d9b0951b LG |
3653 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3654 | int event) | |
ce6120cc | 3655 | { |
a73fb2df | 3656 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3657 | |
3cd04343 | 3658 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3659 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3660 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3661 | } |
2b97eabc RP |
3662 | |
3663 | /** | |
a5302181 | 3664 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3665 | * @dapm: DAPM context |
a5302181 | 3666 | * @pin: pin name |
2b97eabc | 3667 | * |
74b8f955 | 3668 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3669 | * a valid audio route and active audio stream. |
3670 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3671 | * do any widget power switching. | |
2b97eabc | 3672 | */ |
ce6120cc | 3673 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3674 | { |
ce6120cc | 3675 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3676 | } |
3677 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3678 | |
da34183e MB |
3679 | /** |
3680 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3681 | * @dapm: DAPM context |
da34183e MB |
3682 | * @pin: pin name |
3683 | * | |
3684 | * Enables input/output pin regardless of any other state. This is | |
3685 | * intended for use with microphone bias supplies used in microphone | |
3686 | * jack detection. | |
3687 | * | |
3688 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3689 | * do any widget power switching. | |
3690 | */ | |
ce6120cc LG |
3691 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3692 | const char *pin) | |
da34183e | 3693 | { |
91a5fca4 | 3694 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3695 | |
91a5fca4 | 3696 | if (!w) { |
30a6a1a4 | 3697 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3698 | return -EINVAL; |
0d86733c MB |
3699 | } |
3700 | ||
30a6a1a4 | 3701 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3702 | w->connected = 1; |
3703 | w->force = 1; | |
75c1f891 | 3704 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3705 | |
91a5fca4 | 3706 | return 0; |
da34183e MB |
3707 | } |
3708 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3709 | ||
a5302181 LG |
3710 | /** |
3711 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3712 | * @dapm: DAPM context |
a5302181 LG |
3713 | * @pin: pin name |
3714 | * | |
74b8f955 | 3715 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3716 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3717 | * do any widget power switching. | |
3718 | */ | |
ce6120cc LG |
3719 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3720 | const char *pin) | |
a5302181 | 3721 | { |
ce6120cc | 3722 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3723 | } |
a5302181 | 3724 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3725 | |
5817b52a MB |
3726 | /** |
3727 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3728 | * @dapm: DAPM context |
5817b52a MB |
3729 | * @pin: pin name |
3730 | * | |
3731 | * Marks the specified pin as being not connected, disabling it along | |
3732 | * any parent or child widgets. At present this is identical to | |
3733 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3734 | * additional things such as disabling controls which only affect | |
3735 | * paths through the pin. | |
3736 | * | |
3737 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3738 | * do any widget power switching. | |
3739 | */ | |
ce6120cc | 3740 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3741 | { |
ce6120cc | 3742 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3743 | } |
3744 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3745 | ||
eeec12bf | 3746 | /** |
a5302181 | 3747 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3748 | * @dapm: DAPM context |
a5302181 | 3749 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3750 | * |
a5302181 | 3751 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3752 | * |
a5302181 | 3753 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3754 | */ |
ce6120cc LG |
3755 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3756 | const char *pin) | |
eeec12bf | 3757 | { |
91a5fca4 | 3758 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3759 | |
91a5fca4 LPC |
3760 | if (w) |
3761 | return w->connected; | |
a68b38ad | 3762 | |
eeec12bf GG |
3763 | return 0; |
3764 | } | |
a5302181 | 3765 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3766 | |
1547aba9 MB |
3767 | /** |
3768 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3769 | * @dapm: DAPM context |
1547aba9 MB |
3770 | * @pin: audio signal pin endpoint (or start point) |
3771 | * | |
3772 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3773 | * system is disabled a path between two endpoints flagged as ignoring | |
3774 | * suspend will not be disabled. The path must already be enabled via | |
3775 | * normal means at suspend time, it will not be turned on if it was not | |
3776 | * already enabled. | |
3777 | */ | |
ce6120cc LG |
3778 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3779 | const char *pin) | |
1547aba9 | 3780 | { |
91a5fca4 | 3781 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3782 | |
91a5fca4 | 3783 | if (!w) { |
30a6a1a4 | 3784 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3785 | return -EINVAL; |
1547aba9 MB |
3786 | } |
3787 | ||
91a5fca4 LPC |
3788 | w->ignore_suspend = 1; |
3789 | ||
3790 | return 0; | |
1547aba9 MB |
3791 | } |
3792 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3793 | ||
1633281b SW |
3794 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3795 | struct snd_soc_dapm_widget *w) | |
3796 | { | |
3797 | struct snd_soc_dapm_path *p; | |
3798 | ||
3799 | list_for_each_entry(p, &card->paths, list) { | |
3800 | if ((p->source == w) || (p->sink == w)) { | |
3801 | dev_dbg(card->dev, | |
3802 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3803 | p->source->name, p->source->id, p->source->dapm, | |
3804 | p->sink->name, p->sink->id, p->sink->dapm); | |
3805 | ||
3806 | /* Connected to something other than the codec */ | |
3807 | if (p->source->dapm != p->sink->dapm) | |
3808 | return true; | |
3809 | /* | |
3810 | * Loopback connection from codec external pin to | |
3811 | * codec external pin | |
3812 | */ | |
3813 | if (p->sink->id == snd_soc_dapm_input) { | |
3814 | switch (p->source->id) { | |
3815 | case snd_soc_dapm_output: | |
3816 | case snd_soc_dapm_micbias: | |
3817 | return true; | |
3818 | default: | |
3819 | break; | |
3820 | } | |
3821 | } | |
3822 | } | |
3823 | } | |
3824 | ||
3825 | return false; | |
3826 | } | |
3827 | ||
3828 | /** | |
3829 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3830 | * @codec: The codec whose pins should be processed | |
3831 | * | |
3832 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3833 | * which are unused. Pins are used if they are connected externally to the | |
3834 | * codec, whether that be to some other device, or a loop-back connection to | |
3835 | * the codec itself. | |
3836 | */ | |
3837 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3838 | { | |
3839 | struct snd_soc_card *card = codec->card; | |
3840 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3841 | struct snd_soc_dapm_widget *w; | |
3842 | ||
30a6a1a4 | 3843 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3844 | &card->dapm, &codec->dapm); |
3845 | ||
3846 | list_for_each_entry(w, &card->widgets, list) { | |
3847 | if (w->dapm != dapm) | |
3848 | continue; | |
3849 | switch (w->id) { | |
3850 | case snd_soc_dapm_input: | |
3851 | case snd_soc_dapm_output: | |
3852 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3853 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3854 | w->name); |
3855 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3856 | dev_dbg(codec->dev, |
1633281b SW |
3857 | "... Not in map; disabling\n"); |
3858 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3859 | } | |
3860 | break; | |
3861 | default: | |
3862 | break; | |
3863 | } | |
3864 | } | |
3865 | } | |
3866 | ||
2b97eabc RP |
3867 | /** |
3868 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3869 | * @dapm: DAPM context |
2b97eabc RP |
3870 | * |
3871 | * Free all dapm widgets and resources. | |
3872 | */ | |
ce6120cc | 3873 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3874 | { |
ce6120cc | 3875 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3876 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3877 | dapm_free_widgets(dapm); |
7be31be8 | 3878 | list_del(&dapm->list); |
2b97eabc RP |
3879 | } |
3880 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3881 | ||
ce6120cc | 3882 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3883 | { |
01005a72 | 3884 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3885 | struct snd_soc_dapm_widget *w; |
3886 | LIST_HEAD(down_list); | |
3887 | int powerdown = 0; | |
3888 | ||
01005a72 LG |
3889 | mutex_lock(&card->dapm_mutex); |
3890 | ||
97c866de JN |
3891 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3892 | if (w->dapm != dapm) | |
3893 | continue; | |
51737470 | 3894 | if (w->power) { |
828a842f | 3895 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3896 | w->power = 0; |
51737470 MB |
3897 | powerdown = 1; |
3898 | } | |
3899 | } | |
3900 | ||
3901 | /* If there were no widgets to power down we're already in | |
3902 | * standby. | |
3903 | */ | |
3904 | if (powerdown) { | |
7679e42e MB |
3905 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3906 | snd_soc_dapm_set_bias_level(dapm, | |
3907 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3908 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3909 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3910 | snd_soc_dapm_set_bias_level(dapm, | |
3911 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3912 | } |
01005a72 LG |
3913 | |
3914 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3915 | } |
3916 | ||
3917 | /* | |
3918 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3919 | */ | |
3920 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3921 | { | |
3922 | struct snd_soc_codec *codec; | |
3923 | ||
445632ad | 3924 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3925 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3926 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3927 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3928 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3929 | } |
51737470 MB |
3930 | } |
3931 | ||
2b97eabc | 3932 | /* Module information */ |
d331124d | 3933 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3934 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3935 | MODULE_LICENSE("GPL"); |