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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
57295073 LPC |
50 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
51 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
52 | const char *control, | |
53 | int (*connected)(struct snd_soc_dapm_widget *source, | |
54 | struct snd_soc_dapm_widget *sink)); | |
55 | static struct snd_soc_dapm_widget * | |
56 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
57 | const struct snd_soc_dapm_widget *widget); | |
58 | ||
2b97eabc RP |
59 | /* dapm power sequences - make this per codec in the future */ |
60 | static int dapm_up_seq[] = { | |
38357ab2 | 61 | [snd_soc_dapm_pre] = 0, |
62ea874a | 62 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 63 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
64 | [snd_soc_dapm_supply] = 2, |
65 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 66 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
67 | [snd_soc_dapm_dai_in] = 4, |
68 | [snd_soc_dapm_dai_out] = 4, | |
69 | [snd_soc_dapm_aif_in] = 4, | |
70 | [snd_soc_dapm_aif_out] = 4, | |
71 | [snd_soc_dapm_mic] = 5, | |
72 | [snd_soc_dapm_mux] = 6, | |
73 | [snd_soc_dapm_virt_mux] = 6, | |
1dd275b6 MB |
74 | [snd_soc_dapm_dac] = 7, |
75 | [snd_soc_dapm_switch] = 8, | |
76 | [snd_soc_dapm_mixer] = 8, | |
77 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
78 | [snd_soc_dapm_pga] = 9, | |
79 | [snd_soc_dapm_adc] = 10, | |
80 | [snd_soc_dapm_out_drv] = 11, | |
81 | [snd_soc_dapm_hp] = 11, | |
82 | [snd_soc_dapm_spk] = 11, | |
83 | [snd_soc_dapm_line] = 11, | |
84 | [snd_soc_dapm_kcontrol] = 12, | |
85 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 86 | }; |
ca9c1aae | 87 | |
2b97eabc | 88 | static int dapm_down_seq[] = { |
38357ab2 | 89 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
90 | [snd_soc_dapm_kcontrol] = 1, |
91 | [snd_soc_dapm_adc] = 2, | |
92 | [snd_soc_dapm_hp] = 3, | |
93 | [snd_soc_dapm_spk] = 3, | |
94 | [snd_soc_dapm_line] = 3, | |
95 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 96 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 97 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 98 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
99 | [snd_soc_dapm_mixer] = 5, |
100 | [snd_soc_dapm_dac] = 6, | |
101 | [snd_soc_dapm_mic] = 7, | |
102 | [snd_soc_dapm_micbias] = 8, | |
103 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 104 | [snd_soc_dapm_virt_mux] = 9, |
010ff262 MB |
105 | [snd_soc_dapm_aif_in] = 10, |
106 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
107 | [snd_soc_dapm_dai_in] = 10, |
108 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 109 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 110 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
111 | [snd_soc_dapm_clock_supply] = 13, |
112 | [snd_soc_dapm_regulator_supply] = 13, | |
113 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
114 | }; |
115 | ||
12ef193d | 116 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
117 | { |
118 | if (pop_time) | |
119 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
120 | } | |
121 | ||
fd8d3bc0 | 122 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
123 | { |
124 | va_list args; | |
fd8d3bc0 | 125 | char *buf; |
15e4c72f | 126 | |
fd8d3bc0 JN |
127 | if (!pop_time) |
128 | return; | |
15e4c72f | 129 | |
fd8d3bc0 JN |
130 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
131 | if (buf == NULL) | |
132 | return; | |
15e4c72f | 133 | |
fd8d3bc0 JN |
134 | va_start(args, fmt); |
135 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 136 | dev_info(dev, "%s", buf); |
15e4c72f | 137 | va_end(args); |
fd8d3bc0 JN |
138 | |
139 | kfree(buf); | |
15e4c72f MB |
140 | } |
141 | ||
db432b41 MB |
142 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
143 | { | |
144 | return !list_empty(&w->dirty); | |
145 | } | |
146 | ||
25c77c5f | 147 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 148 | { |
75c1f891 MB |
149 | if (!dapm_dirty_widget(w)) { |
150 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
151 | w->name, reason); | |
db432b41 | 152 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 153 | } |
db432b41 | 154 | } |
25c77c5f | 155 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 156 | |
e2d32ff6 MB |
157 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
158 | { | |
159 | struct snd_soc_card *card = dapm->card; | |
160 | struct snd_soc_dapm_widget *w; | |
161 | ||
162 | mutex_lock(&card->dapm_mutex); | |
163 | ||
164 | list_for_each_entry(w, &card->widgets, list) { | |
165 | switch (w->id) { | |
166 | case snd_soc_dapm_input: | |
167 | case snd_soc_dapm_output: | |
168 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
169 | break; | |
170 | default: | |
171 | break; | |
172 | } | |
173 | } | |
174 | ||
175 | mutex_unlock(&card->dapm_mutex); | |
176 | } | |
177 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
178 | ||
2b97eabc | 179 | /* create a new dapm widget */ |
88cb4290 | 180 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
181 | const struct snd_soc_dapm_widget *_widget) |
182 | { | |
88cb4290 | 183 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
184 | } |
185 | ||
e84357f7 | 186 | struct dapm_kcontrol_data { |
cf7c1de2 | 187 | unsigned int value; |
57295073 | 188 | struct snd_soc_dapm_widget *widget; |
5106b92f | 189 | struct list_head paths; |
2c75bdf3 | 190 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
191 | }; |
192 | ||
193 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
194 | struct snd_kcontrol *kcontrol) | |
195 | { | |
196 | struct dapm_kcontrol_data *data; | |
57295073 | 197 | struct soc_mixer_control *mc; |
e84357f7 | 198 | |
2c75bdf3 | 199 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
200 | if (!data) { |
201 | dev_err(widget->dapm->dev, | |
202 | "ASoC: can't allocate kcontrol data for %s\n", | |
203 | widget->name); | |
204 | return -ENOMEM; | |
205 | } | |
206 | ||
5106b92f | 207 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 208 | |
57295073 LPC |
209 | switch (widget->id) { |
210 | case snd_soc_dapm_switch: | |
211 | case snd_soc_dapm_mixer: | |
212 | case snd_soc_dapm_mixer_named_ctl: | |
213 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
214 | ||
215 | if (mc->autodisable) { | |
216 | struct snd_soc_dapm_widget template; | |
217 | ||
218 | memset(&template, 0, sizeof(template)); | |
219 | template.reg = mc->reg; | |
220 | template.mask = (1 << fls(mc->max)) - 1; | |
221 | template.shift = mc->shift; | |
222 | if (mc->invert) | |
223 | template.off_val = mc->max; | |
224 | else | |
225 | template.off_val = 0; | |
226 | template.on_val = template.off_val; | |
227 | template.id = snd_soc_dapm_kcontrol; | |
228 | template.name = kcontrol->id.name; | |
229 | ||
2daabd78 LPC |
230 | data->value = template.on_val; |
231 | ||
57295073 LPC |
232 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
233 | &template); | |
234 | if (!data->widget) { | |
235 | kfree(data); | |
236 | return -ENOMEM; | |
237 | } | |
238 | } | |
239 | break; | |
240 | default: | |
241 | break; | |
242 | } | |
243 | ||
e84357f7 LPC |
244 | kcontrol->private_data = data; |
245 | ||
246 | return 0; | |
247 | } | |
248 | ||
249 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
250 | { | |
251 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
57295073 | 252 | kfree(data->widget); |
2c75bdf3 | 253 | kfree(data->wlist); |
e84357f7 LPC |
254 | kfree(data); |
255 | } | |
256 | ||
257 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
258 | const struct snd_kcontrol *kcontrol) | |
259 | { | |
260 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
261 | ||
2c75bdf3 | 262 | return data->wlist; |
e84357f7 LPC |
263 | } |
264 | ||
265 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
266 | struct snd_soc_dapm_widget *widget) | |
267 | { | |
268 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
269 | struct snd_soc_dapm_widget_list *new_wlist; |
270 | unsigned int n; | |
e84357f7 | 271 | |
2c75bdf3 LPC |
272 | if (data->wlist) |
273 | n = data->wlist->num_widgets + 1; | |
274 | else | |
275 | n = 1; | |
276 | ||
277 | new_wlist = krealloc(data->wlist, | |
278 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
279 | if (!new_wlist) | |
e84357f7 LPC |
280 | return -ENOMEM; |
281 | ||
2c75bdf3 LPC |
282 | new_wlist->widgets[n - 1] = widget; |
283 | new_wlist->num_widgets = n; | |
e84357f7 | 284 | |
2c75bdf3 | 285 | data->wlist = new_wlist; |
e84357f7 LPC |
286 | |
287 | return 0; | |
288 | } | |
289 | ||
5106b92f LPC |
290 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
291 | struct snd_soc_dapm_path *path) | |
292 | { | |
293 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
294 | ||
295 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
296 | |
297 | if (data->widget) { | |
298 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
299 | path->source, NULL, NULL); | |
300 | } | |
301 | } | |
302 | ||
303 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
304 | { | |
305 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
306 | ||
307 | if (!data->widget) | |
308 | return true; | |
309 | ||
310 | return data->widget->power; | |
5106b92f LPC |
311 | } |
312 | ||
313 | static struct list_head *dapm_kcontrol_get_path_list( | |
314 | const struct snd_kcontrol *kcontrol) | |
315 | { | |
316 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
317 | ||
318 | return &data->paths; | |
319 | } | |
320 | ||
321 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
322 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
323 | list_kcontrol) | |
324 | ||
cf7c1de2 LPC |
325 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
326 | { | |
327 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
328 | ||
329 | return data->value; | |
330 | } | |
331 | ||
332 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
333 | unsigned int value) | |
334 | { | |
335 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
336 | ||
337 | if (data->value == value) | |
338 | return false; | |
339 | ||
57295073 LPC |
340 | if (data->widget) |
341 | data->widget->on_val = value; | |
342 | ||
cf7c1de2 LPC |
343 | data->value = value; |
344 | ||
345 | return true; | |
346 | } | |
347 | ||
eee5d7f9 LPC |
348 | /** |
349 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
350 | * @kcontrol: The kcontrol | |
351 | */ | |
352 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
353 | { | |
e84357f7 | 354 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
355 | } |
356 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
357 | ||
6c120e19 LG |
358 | static void dapm_reset(struct snd_soc_card *card) |
359 | { | |
360 | struct snd_soc_dapm_widget *w; | |
361 | ||
362 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
363 | ||
364 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 365 | w->new_power = w->power; |
6c120e19 LG |
366 | w->power_checked = false; |
367 | w->inputs = -1; | |
368 | w->outputs = -1; | |
369 | } | |
370 | } | |
371 | ||
f7d3c170 ASL |
372 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg, |
373 | unsigned int *value) | |
0445bdf4 | 374 | { |
f7d3c170 ASL |
375 | if (w->codec) { |
376 | *value = snd_soc_read(w->codec, reg); | |
377 | return 0; | |
378 | } else if (w->platform) { | |
379 | *value = snd_soc_platform_read(w->platform, reg); | |
380 | return 0; | |
381 | } | |
b7950641 | 382 | |
30a6a1a4 | 383 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 384 | return -1; |
0445bdf4 LG |
385 | } |
386 | ||
30ac6b6e LPC |
387 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, |
388 | unsigned int val) | |
0445bdf4 LG |
389 | { |
390 | if (w->codec) | |
391 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
392 | else if (w->platform) |
393 | return snd_soc_platform_write(w->platform, reg, val); | |
394 | ||
30a6a1a4 | 395 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 396 | return -1; |
0445bdf4 LG |
397 | } |
398 | ||
49575fb5 LG |
399 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
400 | { | |
e06ab3b8 | 401 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
402 | mutex_lock(&w->codec->mutex); |
403 | else if (w->platform) | |
404 | mutex_lock(&w->platform->mutex); | |
405 | } | |
406 | ||
407 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
408 | { | |
e06ab3b8 | 409 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
410 | mutex_unlock(&w->codec->mutex); |
411 | else if (w->platform) | |
412 | mutex_unlock(&w->platform->mutex); | |
413 | } | |
414 | ||
eb270e98 MB |
415 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
416 | { | |
417 | if (dapm->codec && dapm->codec->using_regmap) | |
418 | regmap_async_complete(dapm->codec->control_data); | |
419 | } | |
420 | ||
49575fb5 | 421 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, |
0445bdf4 LG |
422 | unsigned short reg, unsigned int mask, unsigned int value) |
423 | { | |
8a713da8 | 424 | bool change; |
0445bdf4 LG |
425 | unsigned int old, new; |
426 | int ret; | |
427 | ||
8a713da8 | 428 | if (w->codec && w->codec->using_regmap) { |
eb270e98 MB |
429 | ret = regmap_update_bits_check_async(w->codec->control_data, |
430 | reg, mask, value, | |
431 | &change); | |
8a713da8 MB |
432 | if (ret != 0) |
433 | return ret; | |
434 | } else { | |
49575fb5 | 435 | soc_widget_lock(w); |
f7d3c170 | 436 | ret = soc_widget_read(w, reg, &old); |
49575fb5 LG |
437 | if (ret < 0) { |
438 | soc_widget_unlock(w); | |
0445bdf4 | 439 | return ret; |
49575fb5 | 440 | } |
8a713da8 | 441 | |
8a713da8 MB |
442 | new = (old & ~mask) | (value & mask); |
443 | change = old != new; | |
444 | if (change) { | |
445 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
446 | if (ret < 0) { |
447 | soc_widget_unlock(w); | |
8a713da8 | 448 | return ret; |
49575fb5 | 449 | } |
8a713da8 | 450 | } |
49575fb5 | 451 | soc_widget_unlock(w); |
0445bdf4 LG |
452 | } |
453 | ||
454 | return change; | |
455 | } | |
456 | ||
452c5eaa MB |
457 | /** |
458 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 459 | * @dapm: DAPM context |
452c5eaa MB |
460 | * @level: level to configure |
461 | * | |
462 | * Configure the bias (power) levels for the SoC audio device. | |
463 | * | |
464 | * Returns 0 for success else error. | |
465 | */ | |
ed5a4c47 | 466 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 467 | enum snd_soc_bias_level level) |
452c5eaa | 468 | { |
ed5a4c47 | 469 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
470 | int ret = 0; |
471 | ||
84e90930 MB |
472 | trace_snd_soc_bias_level_start(card, level); |
473 | ||
f0fba2ad | 474 | if (card && card->set_bias_level) |
d4c6005f | 475 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
476 | if (ret != 0) |
477 | goto out; | |
478 | ||
cc4c670a MB |
479 | if (dapm->codec) { |
480 | if (dapm->codec->driver->set_bias_level) | |
481 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
482 | level); | |
d8c3bb91 MB |
483 | else |
484 | dapm->bias_level = level; | |
4e872a46 | 485 | } else if (!card || dapm != &card->dapm) { |
4123128e | 486 | dapm->bias_level = level; |
4e872a46 | 487 | } |
4123128e | 488 | |
171ec6b0 MB |
489 | if (ret != 0) |
490 | goto out; | |
491 | ||
492 | if (card && card->set_bias_level_post) | |
d4c6005f | 493 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 494 | out: |
84e90930 MB |
495 | trace_snd_soc_bias_level_done(card, level); |
496 | ||
452c5eaa MB |
497 | return ret; |
498 | } | |
499 | ||
2b97eabc RP |
500 | /* set up initial codec paths */ |
501 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
502 | struct snd_soc_dapm_path *p, int i) | |
503 | { | |
504 | switch (w->id) { | |
505 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
506 | case snd_soc_dapm_mixer: |
507 | case snd_soc_dapm_mixer_named_ctl: { | |
30ac6b6e | 508 | unsigned int val; |
4eaa9819 | 509 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 510 | w->kcontrol_news[i].private_value; |
249ce138 | 511 | int reg = mc->reg; |
815ecf8d | 512 | unsigned int shift = mc->shift; |
4eaa9819 | 513 | int max = mc->max; |
815ecf8d JS |
514 | unsigned int mask = (1 << fls(max)) - 1; |
515 | unsigned int invert = mc->invert; | |
2b97eabc | 516 | |
249ce138 | 517 | if (reg != SND_SOC_NOPM) { |
f7d3c170 | 518 | soc_widget_read(w, reg, &val); |
249ce138 LPC |
519 | val = (val >> shift) & mask; |
520 | if (invert) | |
521 | val = max - val; | |
522 | p->connect = !!val; | |
523 | } else { | |
524 | p->connect = 0; | |
525 | } | |
2b97eabc | 526 | |
2b97eabc RP |
527 | } |
528 | break; | |
529 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
530 | struct soc_enum *e = (struct soc_enum *) |
531 | w->kcontrol_news[i].private_value; | |
30ac6b6e | 532 | unsigned int val, item; |
2b97eabc | 533 | |
f7d3c170 | 534 | soc_widget_read(w, e->reg, &val); |
3727b496 LPC |
535 | val = (val >> e->shift_l) & e->mask; |
536 | item = snd_soc_enum_val_to_item(e, val); | |
2b97eabc | 537 | |
9a8d38db | 538 | if (item < e->items && !strcmp(p->name, e->texts[item])) |
58fee775 LPC |
539 | p->connect = 1; |
540 | else | |
541 | p->connect = 0; | |
2b97eabc RP |
542 | } |
543 | break; | |
24ff33ac | 544 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
545 | struct soc_enum *e = (struct soc_enum *) |
546 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
547 | |
548 | p->connect = 0; | |
549 | /* since a virtual mux has no backing registers to | |
550 | * decide which path to connect, it will try to match | |
551 | * with the first enumeration. This is to ensure | |
552 | * that the default mux choice (the first) will be | |
553 | * correctly powered up during initialization. | |
554 | */ | |
555 | if (!strcmp(p->name, e->texts[0])) | |
556 | p->connect = 1; | |
557 | } | |
558 | break; | |
56563100 | 559 | /* does not affect routing - always connected */ |
2b97eabc | 560 | case snd_soc_dapm_pga: |
d88429a6 | 561 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
562 | case snd_soc_dapm_output: |
563 | case snd_soc_dapm_adc: | |
564 | case snd_soc_dapm_input: | |
1ab97c8c | 565 | case snd_soc_dapm_siggen: |
2b97eabc RP |
566 | case snd_soc_dapm_dac: |
567 | case snd_soc_dapm_micbias: | |
568 | case snd_soc_dapm_vmid: | |
246d0a17 | 569 | case snd_soc_dapm_supply: |
62ea874a | 570 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 571 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
572 | case snd_soc_dapm_aif_in: |
573 | case snd_soc_dapm_aif_out: | |
4616274d MB |
574 | case snd_soc_dapm_dai_in: |
575 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
576 | case snd_soc_dapm_hp: |
577 | case snd_soc_dapm_mic: | |
578 | case snd_soc_dapm_spk: | |
579 | case snd_soc_dapm_line: | |
c74184ed | 580 | case snd_soc_dapm_dai_link: |
57295073 | 581 | case snd_soc_dapm_kcontrol: |
56563100 MB |
582 | p->connect = 1; |
583 | break; | |
584 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
585 | case snd_soc_dapm_pre: |
586 | case snd_soc_dapm_post: | |
587 | p->connect = 0; | |
588 | break; | |
589 | } | |
590 | } | |
591 | ||
74b8f955 | 592 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 593 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
594 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
595 | struct snd_soc_dapm_path *path, const char *control_name, | |
596 | const struct snd_kcontrol_new *kcontrol) | |
597 | { | |
598 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
599 | int i; | |
600 | ||
9a8d38db | 601 | for (i = 0; i < e->items; i++) { |
2b97eabc | 602 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 603 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
604 | list_add(&path->list_sink, &dest->sources); |
605 | list_add(&path->list_source, &src->sinks); | |
606 | path->name = (char*)e->texts[i]; | |
607 | dapm_set_path_status(dest, path, 0); | |
608 | return 0; | |
609 | } | |
610 | } | |
611 | ||
612 | return -ENODEV; | |
613 | } | |
614 | ||
74b8f955 | 615 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 616 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
617 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
618 | struct snd_soc_dapm_path *path, const char *control_name) | |
619 | { | |
620 | int i; | |
621 | ||
622 | /* search for mixer kcontrol */ | |
623 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 624 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 625 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
626 | list_add(&path->list_sink, &dest->sources); |
627 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 628 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
629 | dapm_set_path_status(dest, path, i); |
630 | return 0; | |
631 | } | |
632 | } | |
633 | return -ENODEV; | |
634 | } | |
635 | ||
af46800b | 636 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 637 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
638 | const struct snd_kcontrol_new *kcontrol_new, |
639 | struct snd_kcontrol **kcontrol) | |
640 | { | |
641 | struct snd_soc_dapm_widget *w; | |
642 | int i; | |
643 | ||
644 | *kcontrol = NULL; | |
645 | ||
646 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
647 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
648 | continue; | |
af46800b SW |
649 | for (i = 0; i < w->num_kcontrols; i++) { |
650 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
651 | if (w->kcontrols) | |
652 | *kcontrol = w->kcontrols[i]; | |
653 | return 1; | |
654 | } | |
655 | } | |
656 | } | |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
85762e71 SW |
661 | /* |
662 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
663 | * create it. Either way, add the widget into the control's widget list | |
664 | */ | |
665 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 666 | int kci) |
2b97eabc | 667 | { |
4b80b8c2 | 668 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 669 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 670 | const char *prefix; |
85762e71 SW |
671 | size_t prefix_len; |
672 | int shared; | |
673 | struct snd_kcontrol *kcontrol; | |
85762e71 | 674 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
675 | char *long_name; |
676 | const char *name; | |
677 | int ret; | |
efb7ac3f MB |
678 | |
679 | if (dapm->codec) | |
680 | prefix = dapm->codec->name_prefix; | |
681 | else | |
682 | prefix = NULL; | |
2b97eabc | 683 | |
3e5ff4df MB |
684 | if (prefix) |
685 | prefix_len = strlen(prefix) + 1; | |
686 | else | |
687 | prefix_len = 0; | |
688 | ||
85762e71 SW |
689 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
690 | &kcontrol); | |
2b97eabc | 691 | |
85762e71 SW |
692 | if (!kcontrol) { |
693 | if (shared) { | |
694 | wname_in_long_name = false; | |
695 | kcname_in_long_name = true; | |
696 | } else { | |
697 | switch (w->id) { | |
698 | case snd_soc_dapm_switch: | |
699 | case snd_soc_dapm_mixer: | |
700 | wname_in_long_name = true; | |
701 | kcname_in_long_name = true; | |
702 | break; | |
703 | case snd_soc_dapm_mixer_named_ctl: | |
704 | wname_in_long_name = false; | |
705 | kcname_in_long_name = true; | |
706 | break; | |
707 | case snd_soc_dapm_mux: | |
708 | case snd_soc_dapm_virt_mux: | |
85762e71 SW |
709 | wname_in_long_name = true; |
710 | kcname_in_long_name = false; | |
711 | break; | |
712 | default: | |
85762e71 | 713 | return -EINVAL; |
82cd8764 | 714 | } |
85762e71 SW |
715 | } |
716 | ||
717 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
718 | /* |
719 | * The control will get a prefix from the control | |
720 | * creation process but we're also using the same | |
721 | * prefix for widgets so cut the prefix off the | |
722 | * front of the widget name. | |
ca9c1aae | 723 | */ |
2b581074 | 724 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
725 | w->name + prefix_len, |
726 | w->kcontrol_news[kci].name); | |
e84357f7 | 727 | if (long_name == NULL) |
2b581074 | 728 | return -ENOMEM; |
85762e71 SW |
729 | |
730 | name = long_name; | |
731 | } else if (wname_in_long_name) { | |
732 | long_name = NULL; | |
733 | name = w->name + prefix_len; | |
734 | } else { | |
735 | long_name = NULL; | |
736 | name = w->kcontrol_news[kci].name; | |
737 | } | |
ca9c1aae | 738 | |
e84357f7 | 739 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 740 | prefix); |
656ca9d3 | 741 | kfree(long_name); |
9356e9d5 LPC |
742 | if (!kcontrol) |
743 | return -ENOMEM; | |
744 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
745 | |
746 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
747 | if (ret) { | |
748 | snd_ctl_free_one(kcontrol); | |
749 | return ret; | |
750 | } | |
751 | ||
85762e71 SW |
752 | ret = snd_ctl_add(card, kcontrol); |
753 | if (ret < 0) { | |
754 | dev_err(dapm->dev, | |
755 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
756 | w->name, name, ret); | |
85762e71 SW |
757 | return ret; |
758 | } | |
85762e71 | 759 | } |
2b97eabc | 760 | |
2c75bdf3 LPC |
761 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
762 | if (ret) | |
763 | return ret; | |
764 | ||
85762e71 | 765 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 766 | |
85762e71 SW |
767 | return 0; |
768 | } | |
219b93f5 | 769 | |
85762e71 SW |
770 | /* create new dapm mixer control */ |
771 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
772 | { | |
773 | int i, ret; | |
774 | struct snd_soc_dapm_path *path; | |
775 | ||
776 | /* add kcontrol */ | |
777 | for (i = 0; i < w->num_kcontrols; i++) { | |
778 | /* match name */ | |
779 | list_for_each_entry(path, &w->sources, list_sink) { | |
780 | /* mixer/mux paths name must match control name */ | |
781 | if (path->name != (char *)w->kcontrol_news[i].name) | |
782 | continue; | |
783 | ||
784 | if (w->kcontrols[i]) { | |
5106b92f | 785 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 786 | continue; |
2b97eabc | 787 | } |
85762e71 | 788 | |
946d92a1 | 789 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
790 | if (ret < 0) |
791 | return ret; | |
946d92a1 MB |
792 | |
793 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
794 | } |
795 | } | |
85762e71 SW |
796 | |
797 | return 0; | |
2b97eabc RP |
798 | } |
799 | ||
800 | /* create new dapm mux control */ | |
4b80b8c2 | 801 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 802 | { |
4b80b8c2 | 803 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 804 | struct snd_soc_dapm_path *path; |
af46800b | 805 | int ret; |
2b97eabc | 806 | |
af46800b SW |
807 | if (w->num_kcontrols != 1) { |
808 | dev_err(dapm->dev, | |
30a6a1a4 | 809 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 810 | w->name); |
2b97eabc RP |
811 | return -EINVAL; |
812 | } | |
813 | ||
fe581391 | 814 | if (list_empty(&w->sources)) { |
85762e71 SW |
815 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
816 | return -EINVAL; | |
af46800b | 817 | } |
ce6120cc | 818 | |
946d92a1 | 819 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
820 | if (ret < 0) |
821 | return ret; | |
fad59888 | 822 | |
2b97eabc | 823 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 824 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 825 | |
af46800b | 826 | return 0; |
2b97eabc RP |
827 | } |
828 | ||
829 | /* create new dapm volume control */ | |
4b80b8c2 | 830 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 831 | { |
a6c65736 | 832 | if (w->num_kcontrols) |
f7d41ae8 | 833 | dev_err(w->dapm->dev, |
30a6a1a4 | 834 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 835 | |
a6c65736 | 836 | return 0; |
2b97eabc RP |
837 | } |
838 | ||
839 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
840 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
841 | struct list_head *sink) | |
2b97eabc RP |
842 | { |
843 | struct snd_soc_dapm_path *p; | |
844 | ||
1059ecfa RT |
845 | list_for_each_entry(p, sink, list_source) { |
846 | if (p->walked) { | |
847 | p->walked = 0; | |
848 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
849 | } | |
850 | } | |
2b97eabc RP |
851 | } |
852 | ||
1059ecfa RT |
853 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
854 | struct list_head *source) | |
2b97eabc RP |
855 | { |
856 | struct snd_soc_dapm_path *p; | |
857 | ||
1059ecfa RT |
858 | list_for_each_entry(p, source, list_sink) { |
859 | if (p->walked) { | |
860 | p->walked = 0; | |
861 | dapm_clear_walk_input(dapm, &p->source->sources); | |
862 | } | |
863 | } | |
2b97eabc RP |
864 | } |
865 | ||
1059ecfa | 866 | |
9949788b MB |
867 | /* We implement power down on suspend by checking the power state of |
868 | * the ALSA card - when we are suspending the ALSA state for the card | |
869 | * is set to D3. | |
870 | */ | |
871 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
872 | { | |
12ea2c78 | 873 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 874 | |
f0fba2ad | 875 | switch (level) { |
9949788b MB |
876 | case SNDRV_CTL_POWER_D3hot: |
877 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 878 | if (widget->ignore_suspend) |
30a6a1a4 | 879 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 880 | widget->name); |
1547aba9 | 881 | return widget->ignore_suspend; |
9949788b MB |
882 | default: |
883 | return 1; | |
884 | } | |
885 | } | |
886 | ||
ec2e3031 LG |
887 | /* add widget to list if it's not already in the list */ |
888 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
889 | struct snd_soc_dapm_widget *w) | |
890 | { | |
891 | struct snd_soc_dapm_widget_list *wlist; | |
892 | int wlistsize, wlistentries, i; | |
893 | ||
894 | if (*list == NULL) | |
895 | return -EINVAL; | |
896 | ||
897 | wlist = *list; | |
898 | ||
899 | /* is this widget already in the list */ | |
900 | for (i = 0; i < wlist->num_widgets; i++) { | |
901 | if (wlist->widgets[i] == w) | |
902 | return 0; | |
903 | } | |
904 | ||
905 | /* allocate some new space */ | |
906 | wlistentries = wlist->num_widgets + 1; | |
907 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
908 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
909 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
910 | if (*list == NULL) { | |
30a6a1a4 | 911 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
912 | w->name); |
913 | return -ENOMEM; | |
914 | } | |
915 | wlist = *list; | |
916 | ||
917 | /* insert the widget */ | |
30a6a1a4 | 918 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
919 | w->name, wlist->num_widgets); |
920 | ||
921 | wlist->widgets[wlist->num_widgets] = w; | |
922 | wlist->num_widgets++; | |
923 | return 1; | |
924 | } | |
925 | ||
2b97eabc RP |
926 | /* |
927 | * Recursively check for a completed path to an active or physically connected | |
928 | * output widget. Returns number of complete paths. | |
929 | */ | |
ec2e3031 LG |
930 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
931 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
932 | { |
933 | struct snd_soc_dapm_path *path; | |
934 | int con = 0; | |
935 | ||
024dc078 MB |
936 | if (widget->outputs >= 0) |
937 | return widget->outputs; | |
938 | ||
de02d078 MB |
939 | DAPM_UPDATE_STAT(widget, path_checks); |
940 | ||
62ea874a MB |
941 | switch (widget->id) { |
942 | case snd_soc_dapm_supply: | |
943 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 944 | case snd_soc_dapm_clock_supply: |
57295073 | 945 | case snd_soc_dapm_kcontrol: |
246d0a17 | 946 | return 0; |
62ea874a MB |
947 | default: |
948 | break; | |
949 | } | |
246d0a17 | 950 | |
010ff262 MB |
951 | switch (widget->id) { |
952 | case snd_soc_dapm_adc: | |
953 | case snd_soc_dapm_aif_out: | |
4616274d | 954 | case snd_soc_dapm_dai_out: |
024dc078 MB |
955 | if (widget->active) { |
956 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
957 | return widget->outputs; | |
958 | } | |
010ff262 MB |
959 | default: |
960 | break; | |
961 | } | |
2b97eabc RP |
962 | |
963 | if (widget->connected) { | |
964 | /* connected pin ? */ | |
024dc078 MB |
965 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
966 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
967 | return widget->outputs; | |
968 | } | |
2b97eabc RP |
969 | |
970 | /* connected jack or spk ? */ | |
024dc078 MB |
971 | if (widget->id == snd_soc_dapm_hp || |
972 | widget->id == snd_soc_dapm_spk || | |
973 | (widget->id == snd_soc_dapm_line && | |
974 | !list_empty(&widget->sources))) { | |
975 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
976 | return widget->outputs; | |
977 | } | |
2b97eabc RP |
978 | } |
979 | ||
980 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
981 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
982 | ||
bf3a9e13 MB |
983 | if (path->weak) |
984 | continue; | |
985 | ||
8af294b4 MB |
986 | if (path->walking) |
987 | return 1; | |
988 | ||
2b97eabc RP |
989 | if (path->walked) |
990 | continue; | |
991 | ||
ec2e3031 LG |
992 | trace_snd_soc_dapm_output_path(widget, path); |
993 | ||
2b97eabc RP |
994 | if (path->sink && path->connect) { |
995 | path->walked = 1; | |
8af294b4 | 996 | path->walking = 1; |
ec2e3031 LG |
997 | |
998 | /* do we need to add this widget to the list ? */ | |
999 | if (list) { | |
1000 | int err; | |
1001 | err = dapm_list_add_widget(list, path->sink); | |
1002 | if (err < 0) { | |
30a6a1a4 LG |
1003 | dev_err(widget->dapm->dev, |
1004 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1005 | widget->name); |
8af294b4 | 1006 | path->walking = 0; |
ec2e3031 LG |
1007 | return con; |
1008 | } | |
1009 | } | |
1010 | ||
1011 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1012 | |
1013 | path->walking = 0; | |
2b97eabc RP |
1014 | } |
1015 | } | |
1016 | ||
024dc078 MB |
1017 | widget->outputs = con; |
1018 | ||
2b97eabc RP |
1019 | return con; |
1020 | } | |
1021 | ||
1022 | /* | |
1023 | * Recursively check for a completed path to an active or physically connected | |
1024 | * input widget. Returns number of complete paths. | |
1025 | */ | |
ec2e3031 LG |
1026 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1027 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1028 | { |
1029 | struct snd_soc_dapm_path *path; | |
1030 | int con = 0; | |
1031 | ||
024dc078 MB |
1032 | if (widget->inputs >= 0) |
1033 | return widget->inputs; | |
1034 | ||
de02d078 MB |
1035 | DAPM_UPDATE_STAT(widget, path_checks); |
1036 | ||
62ea874a MB |
1037 | switch (widget->id) { |
1038 | case snd_soc_dapm_supply: | |
1039 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 1040 | case snd_soc_dapm_clock_supply: |
57295073 | 1041 | case snd_soc_dapm_kcontrol: |
246d0a17 | 1042 | return 0; |
62ea874a MB |
1043 | default: |
1044 | break; | |
1045 | } | |
246d0a17 | 1046 | |
2b97eabc | 1047 | /* active stream ? */ |
010ff262 MB |
1048 | switch (widget->id) { |
1049 | case snd_soc_dapm_dac: | |
1050 | case snd_soc_dapm_aif_in: | |
4616274d | 1051 | case snd_soc_dapm_dai_in: |
024dc078 MB |
1052 | if (widget->active) { |
1053 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1054 | return widget->inputs; | |
1055 | } | |
010ff262 MB |
1056 | default: |
1057 | break; | |
1058 | } | |
2b97eabc RP |
1059 | |
1060 | if (widget->connected) { | |
1061 | /* connected pin ? */ | |
024dc078 MB |
1062 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
1063 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1064 | return widget->inputs; | |
1065 | } | |
2b97eabc RP |
1066 | |
1067 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
1068 | if (widget->id == snd_soc_dapm_vmid) { |
1069 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1070 | return widget->inputs; | |
1071 | } | |
2b97eabc RP |
1072 | |
1073 | /* connected jack ? */ | |
eaeae5d9 | 1074 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1075 | (widget->id == snd_soc_dapm_line && |
1076 | !list_empty(&widget->sinks))) { | |
1077 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1078 | return widget->inputs; | |
1079 | } | |
1080 | ||
1ab97c8c MB |
1081 | /* signal generator */ |
1082 | if (widget->id == snd_soc_dapm_siggen) { | |
1083 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1084 | return widget->inputs; | |
1085 | } | |
2b97eabc RP |
1086 | } |
1087 | ||
1088 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1089 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1090 | ||
bf3a9e13 MB |
1091 | if (path->weak) |
1092 | continue; | |
1093 | ||
8af294b4 MB |
1094 | if (path->walking) |
1095 | return 1; | |
1096 | ||
2b97eabc RP |
1097 | if (path->walked) |
1098 | continue; | |
1099 | ||
ec2e3031 LG |
1100 | trace_snd_soc_dapm_input_path(widget, path); |
1101 | ||
2b97eabc RP |
1102 | if (path->source && path->connect) { |
1103 | path->walked = 1; | |
8af294b4 | 1104 | path->walking = 1; |
ec2e3031 LG |
1105 | |
1106 | /* do we need to add this widget to the list ? */ | |
1107 | if (list) { | |
1108 | int err; | |
90c6ce0d | 1109 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1110 | if (err < 0) { |
30a6a1a4 LG |
1111 | dev_err(widget->dapm->dev, |
1112 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1113 | widget->name); |
8af294b4 | 1114 | path->walking = 0; |
ec2e3031 LG |
1115 | return con; |
1116 | } | |
1117 | } | |
1118 | ||
1119 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1120 | |
1121 | path->walking = 0; | |
2b97eabc RP |
1122 | } |
1123 | } | |
1124 | ||
024dc078 MB |
1125 | widget->inputs = con; |
1126 | ||
2b97eabc RP |
1127 | return con; |
1128 | } | |
1129 | ||
ec2e3031 LG |
1130 | /** |
1131 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1132 | * @dai: the soc DAI. | |
1133 | * @stream: stream direction. | |
1134 | * @list: list of active widgets for this stream. | |
1135 | * | |
1136 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1137 | * the initial stream specified by name. This takes into account | |
1138 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1139 | * | |
1140 | * Returns the number of valid paths or negative error. | |
1141 | */ | |
1142 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1143 | struct snd_soc_dapm_widget_list **list) | |
1144 | { | |
1145 | struct snd_soc_card *card = dai->card; | |
1146 | int paths; | |
1147 | ||
1148 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1149 | dapm_reset(card); | |
1150 | ||
1059ecfa | 1151 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1152 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1153 | dapm_clear_walk_output(&card->dapm, |
1154 | &dai->playback_widget->sinks); | |
1155 | } else { | |
d298caae | 1156 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1157 | dapm_clear_walk_input(&card->dapm, |
1158 | &dai->capture_widget->sources); | |
1159 | } | |
ec2e3031 LG |
1160 | |
1161 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1162 | mutex_unlock(&card->dapm_mutex); |
1163 | ||
1164 | return paths; | |
1165 | } | |
1166 | ||
e2be2ccf JN |
1167 | /* |
1168 | * Handler for generic register modifier widget. | |
1169 | */ | |
1170 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1171 | struct snd_kcontrol *kcontrol, int event) | |
1172 | { | |
1173 | unsigned int val; | |
1174 | ||
1175 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1176 | val = w->on_val; | |
1177 | else | |
1178 | val = w->off_val; | |
1179 | ||
49575fb5 | 1180 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1181 | w->mask << w->shift, val << w->shift); |
1182 | ||
1183 | return 0; | |
1184 | } | |
11589418 | 1185 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1186 | |
62ea874a MB |
1187 | /* |
1188 | * Handler for regulator supply widget. | |
1189 | */ | |
1190 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1191 | struct snd_kcontrol *kcontrol, int event) | |
1192 | { | |
c05b84d1 MB |
1193 | int ret; |
1194 | ||
eb270e98 MB |
1195 | soc_dapm_async_complete(w->dapm); |
1196 | ||
c05b84d1 | 1197 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1198 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1199 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1200 | if (ret != 0) |
1201 | dev_warn(w->dapm->dev, | |
30686c35 | 1202 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1203 | w->name, ret); |
1204 | } | |
1205 | ||
a3cc056b | 1206 | return regulator_enable(w->regulator); |
c05b84d1 | 1207 | } else { |
de9ba98b | 1208 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1209 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1210 | if (ret != 0) |
1211 | dev_warn(w->dapm->dev, | |
30686c35 | 1212 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1213 | w->name, ret); |
1214 | } | |
1215 | ||
a3cc056b | 1216 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1217 | } |
62ea874a MB |
1218 | } |
1219 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1220 | ||
d7e7eb91 OL |
1221 | /* |
1222 | * Handler for clock supply widget. | |
1223 | */ | |
1224 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1225 | struct snd_kcontrol *kcontrol, int event) | |
1226 | { | |
1227 | if (!w->clk) | |
1228 | return -EIO; | |
1229 | ||
eb270e98 MB |
1230 | soc_dapm_async_complete(w->dapm); |
1231 | ||
ec02995a | 1232 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1233 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1234 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1235 | } else { |
37c1b927 | 1236 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1237 | return 0; |
1238 | } | |
ec02995a | 1239 | #endif |
98b3cf12 | 1240 | return 0; |
d7e7eb91 OL |
1241 | } |
1242 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1243 | ||
d805002b MB |
1244 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1245 | { | |
9b8a83b2 MB |
1246 | if (w->power_checked) |
1247 | return w->new_power; | |
1248 | ||
d805002b | 1249 | if (w->force) |
9b8a83b2 | 1250 | w->new_power = 1; |
d805002b | 1251 | else |
9b8a83b2 MB |
1252 | w->new_power = w->power_check(w); |
1253 | ||
1254 | w->power_checked = true; | |
1255 | ||
1256 | return w->new_power; | |
d805002b MB |
1257 | } |
1258 | ||
cd0f2d47 MB |
1259 | /* Generic check to see if a widget should be powered. |
1260 | */ | |
1261 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1262 | { | |
1263 | int in, out; | |
1264 | ||
de02d078 MB |
1265 | DAPM_UPDATE_STAT(w, power_checks); |
1266 | ||
ec2e3031 | 1267 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1268 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1269 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1270 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1271 | return out != 0 && in != 0; |
1272 | } | |
1273 | ||
6ea31b9f MB |
1274 | /* Check to see if an ADC has power */ |
1275 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1276 | { | |
1277 | int in; | |
1278 | ||
de02d078 MB |
1279 | DAPM_UPDATE_STAT(w, power_checks); |
1280 | ||
6ea31b9f | 1281 | if (w->active) { |
ec2e3031 | 1282 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1283 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1284 | return in != 0; |
1285 | } else { | |
1286 | return dapm_generic_check_power(w); | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | /* Check to see if a DAC has power */ | |
1291 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1292 | { | |
1293 | int out; | |
1294 | ||
de02d078 MB |
1295 | DAPM_UPDATE_STAT(w, power_checks); |
1296 | ||
6ea31b9f | 1297 | if (w->active) { |
ec2e3031 | 1298 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1299 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1300 | return out != 0; |
1301 | } else { | |
1302 | return dapm_generic_check_power(w); | |
1303 | } | |
1304 | } | |
1305 | ||
246d0a17 MB |
1306 | /* Check to see if a power supply is needed */ |
1307 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1308 | { | |
1309 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1310 | |
de02d078 MB |
1311 | DAPM_UPDATE_STAT(w, power_checks); |
1312 | ||
246d0a17 MB |
1313 | /* Check if one of our outputs is connected */ |
1314 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1315 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1316 | ||
bf3a9e13 MB |
1317 | if (path->weak) |
1318 | continue; | |
1319 | ||
215edda3 MB |
1320 | if (path->connected && |
1321 | !path->connected(path->source, path->sink)) | |
1322 | continue; | |
1323 | ||
3017358a MB |
1324 | if (!path->sink) |
1325 | continue; | |
1326 | ||
f68d7e16 MB |
1327 | if (dapm_widget_power_check(path->sink)) |
1328 | return 1; | |
246d0a17 MB |
1329 | } |
1330 | ||
f68d7e16 | 1331 | return 0; |
246d0a17 MB |
1332 | } |
1333 | ||
35c64bca MB |
1334 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1335 | { | |
1336 | return 1; | |
1337 | } | |
1338 | ||
38357ab2 MB |
1339 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1340 | struct snd_soc_dapm_widget *b, | |
828a842f | 1341 | bool power_up) |
42aa3418 | 1342 | { |
828a842f MB |
1343 | int *sort; |
1344 | ||
1345 | if (power_up) | |
1346 | sort = dapm_up_seq; | |
1347 | else | |
1348 | sort = dapm_down_seq; | |
1349 | ||
38357ab2 MB |
1350 | if (sort[a->id] != sort[b->id]) |
1351 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1352 | if (a->subseq != b->subseq) { |
1353 | if (power_up) | |
1354 | return a->subseq - b->subseq; | |
1355 | else | |
1356 | return b->subseq - a->subseq; | |
1357 | } | |
b22ead2a MB |
1358 | if (a->reg != b->reg) |
1359 | return a->reg - b->reg; | |
84dab567 MB |
1360 | if (a->dapm != b->dapm) |
1361 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1362 | |
38357ab2 MB |
1363 | return 0; |
1364 | } | |
42aa3418 | 1365 | |
38357ab2 MB |
1366 | /* Insert a widget in order into a DAPM power sequence. */ |
1367 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1368 | struct list_head *list, | |
828a842f | 1369 | bool power_up) |
38357ab2 MB |
1370 | { |
1371 | struct snd_soc_dapm_widget *w; | |
1372 | ||
1373 | list_for_each_entry(w, list, power_list) | |
828a842f | 1374 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1375 | list_add_tail(&new_widget->power_list, &w->power_list); |
1376 | return; | |
1377 | } | |
1378 | ||
1379 | list_add_tail(&new_widget->power_list, list); | |
1380 | } | |
1381 | ||
95dd5cd6 | 1382 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1383 | struct snd_soc_dapm_widget *w, int event) |
1384 | { | |
68f89ad8 MB |
1385 | const char *ev_name; |
1386 | int power, ret; | |
1387 | ||
1388 | switch (event) { | |
1389 | case SND_SOC_DAPM_PRE_PMU: | |
1390 | ev_name = "PRE_PMU"; | |
1391 | power = 1; | |
1392 | break; | |
1393 | case SND_SOC_DAPM_POST_PMU: | |
1394 | ev_name = "POST_PMU"; | |
1395 | power = 1; | |
1396 | break; | |
1397 | case SND_SOC_DAPM_PRE_PMD: | |
1398 | ev_name = "PRE_PMD"; | |
1399 | power = 0; | |
1400 | break; | |
1401 | case SND_SOC_DAPM_POST_PMD: | |
1402 | ev_name = "POST_PMD"; | |
1403 | power = 0; | |
1404 | break; | |
80114129 MB |
1405 | case SND_SOC_DAPM_WILL_PMU: |
1406 | ev_name = "WILL_PMU"; | |
1407 | power = 1; | |
1408 | break; | |
1409 | case SND_SOC_DAPM_WILL_PMD: | |
1410 | ev_name = "WILL_PMD"; | |
1411 | power = 0; | |
1412 | break; | |
68f89ad8 | 1413 | default: |
a6ed0608 | 1414 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1415 | return; |
1416 | } | |
1417 | ||
39eb5fd1 | 1418 | if (w->new_power != power) |
68f89ad8 MB |
1419 | return; |
1420 | ||
1421 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1422 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1423 | w->name, ev_name); |
eb270e98 | 1424 | soc_dapm_async_complete(w->dapm); |
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) { | |
bf4edea8 | 1447 | WARN_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; | |
eb270e98 | 1497 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1498 | LIST_HEAD(pending); |
1499 | int cur_sort = -1; | |
20e4859d | 1500 | int cur_subseq = -1; |
b22ead2a | 1501 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1502 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1503 | int ret, i; |
828a842f MB |
1504 | int *sort; |
1505 | ||
1506 | if (power_up) | |
1507 | sort = dapm_up_seq; | |
1508 | else | |
1509 | sort = dapm_down_seq; | |
163cac06 | 1510 | |
b22ead2a MB |
1511 | list_for_each_entry_safe(w, n, list, power_list) { |
1512 | ret = 0; | |
1513 | ||
1514 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1515 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1516 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1517 | if (!list_empty(&pending)) |
95dd5cd6 | 1518 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1519 | |
474b62d6 MB |
1520 | if (cur_dapm && cur_dapm->seq_notifier) { |
1521 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1522 | if (sort[i] == cur_sort) | |
1523 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1524 | i, |
1525 | cur_subseq); | |
474b62d6 MB |
1526 | } |
1527 | ||
eb270e98 MB |
1528 | if (cur_dapm && w->dapm != cur_dapm) |
1529 | soc_dapm_async_complete(cur_dapm); | |
1530 | ||
b22ead2a MB |
1531 | INIT_LIST_HEAD(&pending); |
1532 | cur_sort = -1; | |
b0b3e6f8 | 1533 | cur_subseq = INT_MIN; |
b22ead2a | 1534 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1535 | cur_dapm = NULL; |
b22ead2a MB |
1536 | } |
1537 | ||
163cac06 MB |
1538 | switch (w->id) { |
1539 | case snd_soc_dapm_pre: | |
1540 | if (!w->event) | |
b22ead2a MB |
1541 | list_for_each_entry_safe_continue(w, n, list, |
1542 | power_list); | |
163cac06 | 1543 | |
b22ead2a | 1544 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1545 | ret = w->event(w, |
1546 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1547 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1548 | ret = w->event(w, |
1549 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1550 | break; |
1551 | ||
1552 | case snd_soc_dapm_post: | |
1553 | if (!w->event) | |
b22ead2a MB |
1554 | list_for_each_entry_safe_continue(w, n, list, |
1555 | power_list); | |
163cac06 | 1556 | |
b22ead2a | 1557 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1558 | ret = w->event(w, |
1559 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1560 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1561 | ret = w->event(w, |
1562 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1563 | break; |
1564 | ||
b22ead2a | 1565 | default: |
81628103 MB |
1566 | /* Queue it up for application */ |
1567 | cur_sort = sort[w->id]; | |
20e4859d | 1568 | cur_subseq = w->subseq; |
81628103 | 1569 | cur_reg = w->reg; |
7be31be8 | 1570 | cur_dapm = w->dapm; |
81628103 MB |
1571 | list_move(&w->power_list, &pending); |
1572 | break; | |
163cac06 | 1573 | } |
b22ead2a MB |
1574 | |
1575 | if (ret < 0) | |
f7d41ae8 | 1576 | dev_err(w->dapm->dev, |
30a6a1a4 | 1577 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1578 | } |
b22ead2a MB |
1579 | |
1580 | if (!list_empty(&pending)) | |
95dd5cd6 | 1581 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1582 | |
1583 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1584 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1585 | if (sort[i] == cur_sort) | |
1586 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1587 | i, cur_subseq); |
474b62d6 | 1588 | } |
eb270e98 MB |
1589 | |
1590 | list_for_each_entry(d, &card->dapm_list, list) { | |
1591 | soc_dapm_async_complete(d); | |
1592 | } | |
42aa3418 MB |
1593 | } |
1594 | ||
95dd5cd6 | 1595 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1596 | { |
95dd5cd6 | 1597 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1598 | struct snd_soc_dapm_widget_list *wlist; |
1599 | struct snd_soc_dapm_widget *w = NULL; | |
1600 | unsigned int wi; | |
97404f2e MB |
1601 | int ret; |
1602 | ||
57295073 | 1603 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1604 | return; |
1605 | ||
e84357f7 | 1606 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1607 | |
ce6cfaf1 LPC |
1608 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1609 | w = wlist->widgets[wi]; | |
1610 | ||
1611 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1612 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1613 | if (ret != 0) | |
95dd5cd6 | 1614 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1615 | w->name, ret); |
1616 | } | |
97404f2e MB |
1617 | } |
1618 | ||
ce6cfaf1 LPC |
1619 | if (!w) |
1620 | return; | |
1621 | ||
49575fb5 | 1622 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1623 | update->val); |
1624 | if (ret < 0) | |
95dd5cd6 | 1625 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1626 | w->name, ret); |
97404f2e | 1627 | |
ce6cfaf1 LPC |
1628 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1629 | w = wlist->widgets[wi]; | |
1630 | ||
1631 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1632 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1633 | if (ret != 0) | |
95dd5cd6 | 1634 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1635 | w->name, ret); |
1636 | } | |
97404f2e MB |
1637 | } |
1638 | } | |
1639 | ||
9d0624a7 MB |
1640 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1641 | * they're changing state. | |
1642 | */ | |
1643 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1644 | { | |
1645 | struct snd_soc_dapm_context *d = data; | |
1646 | int ret; | |
1647 | ||
56fba41f MB |
1648 | /* If we're off and we're not supposed to be go into STANDBY */ |
1649 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1650 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1651 | if (d->dev) |
1652 | pm_runtime_get_sync(d->dev); | |
1653 | ||
9d0624a7 MB |
1654 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1655 | if (ret != 0) | |
1656 | dev_err(d->dev, | |
30a6a1a4 | 1657 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1658 | } |
1659 | ||
56fba41f MB |
1660 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1661 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1662 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1663 | if (ret != 0) | |
1664 | dev_err(d->dev, | |
30a6a1a4 | 1665 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1666 | } |
1667 | } | |
1668 | ||
1669 | /* Async callback run prior to DAPM sequences - brings to their final | |
1670 | * state. | |
1671 | */ | |
1672 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1673 | { | |
1674 | struct snd_soc_dapm_context *d = data; | |
1675 | int ret; | |
1676 | ||
1677 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1678 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1679 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1680 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1681 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1682 | if (ret != 0) | |
30a6a1a4 | 1683 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1684 | ret); |
1685 | } | |
97404f2e | 1686 | |
9d0624a7 | 1687 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1688 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1689 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1690 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1691 | if (ret != 0) | |
30a6a1a4 LG |
1692 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1693 | ret); | |
f1aac484 MB |
1694 | |
1695 | if (d->dev) | |
fb644e9c | 1696 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1697 | } |
1698 | ||
1699 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1700 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1701 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1702 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1703 | if (ret != 0) | |
30a6a1a4 | 1704 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1705 | ret); |
1706 | } | |
1707 | } | |
97404f2e | 1708 | |
fe4fda5d MB |
1709 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1710 | bool power, bool connect) | |
1711 | { | |
1712 | /* If a connection is being made or broken then that update | |
1713 | * will have marked the peer dirty, otherwise the widgets are | |
1714 | * not connected and this update has no impact. */ | |
1715 | if (!connect) | |
1716 | return; | |
1717 | ||
1718 | /* If the peer is already in the state we're moving to then we | |
1719 | * won't have an impact on it. */ | |
1720 | if (power != peer->power) | |
75c1f891 | 1721 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1722 | } |
1723 | ||
05623c43 MB |
1724 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1725 | struct list_head *up_list, | |
1726 | struct list_head *down_list) | |
1727 | { | |
db432b41 MB |
1728 | struct snd_soc_dapm_path *path; |
1729 | ||
05623c43 MB |
1730 | if (w->power == power) |
1731 | return; | |
1732 | ||
1733 | trace_snd_soc_dapm_widget_power(w, power); | |
1734 | ||
db432b41 | 1735 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1736 | * also. |
db432b41 MB |
1737 | */ |
1738 | list_for_each_entry(path, &w->sources, list_sink) { | |
1739 | if (path->source) { | |
fe4fda5d MB |
1740 | dapm_widget_set_peer_power(path->source, power, |
1741 | path->connect); | |
db432b41 MB |
1742 | } |
1743 | } | |
f3bf3e45 MB |
1744 | switch (w->id) { |
1745 | case snd_soc_dapm_supply: | |
62ea874a | 1746 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1747 | case snd_soc_dapm_clock_supply: |
57295073 | 1748 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1749 | /* Supplies can't affect their outputs, only their inputs */ |
1750 | break; | |
1751 | default: | |
1752 | list_for_each_entry(path, &w->sinks, list_source) { | |
1753 | if (path->sink) { | |
1754 | dapm_widget_set_peer_power(path->sink, power, | |
1755 | path->connect); | |
1756 | } | |
db432b41 | 1757 | } |
f3bf3e45 | 1758 | break; |
db432b41 MB |
1759 | } |
1760 | ||
05623c43 MB |
1761 | if (power) |
1762 | dapm_seq_insert(w, up_list, true); | |
1763 | else | |
1764 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1765 | } |
1766 | ||
7c81beb0 MB |
1767 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1768 | struct list_head *up_list, | |
1769 | struct list_head *down_list) | |
1770 | { | |
7c81beb0 MB |
1771 | int power; |
1772 | ||
1773 | switch (w->id) { | |
1774 | case snd_soc_dapm_pre: | |
1775 | dapm_seq_insert(w, down_list, false); | |
1776 | break; | |
1777 | case snd_soc_dapm_post: | |
1778 | dapm_seq_insert(w, up_list, true); | |
1779 | break; | |
1780 | ||
1781 | default: | |
d805002b | 1782 | power = dapm_widget_power_check(w); |
7c81beb0 | 1783 | |
05623c43 | 1784 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1785 | break; |
1786 | } | |
1787 | } | |
1788 | ||
2b97eabc RP |
1789 | /* |
1790 | * Scan each dapm widget for complete audio path. | |
1791 | * A complete path is a route that has valid endpoints i.e.:- | |
1792 | * | |
1793 | * o DAC to output pin. | |
1794 | * o Input Pin to ADC. | |
1795 | * o Input pin to Output pin (bypass, sidetone) | |
1796 | * o DAC to ADC (loopback). | |
1797 | */ | |
95dd5cd6 | 1798 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1799 | { |
1800 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1801 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1802 | LIST_HEAD(up_list); |
1803 | LIST_HEAD(down_list); | |
2955b47d | 1804 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1805 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1806 | |
84e90930 MB |
1807 | trace_snd_soc_dapm_start(card); |
1808 | ||
56fba41f | 1809 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1810 | if (d->idle_bias_off) |
1811 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1812 | else | |
1813 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1814 | } |
7be31be8 | 1815 | |
6c120e19 | 1816 | dapm_reset(card); |
9b8a83b2 | 1817 | |
6d3ddc81 | 1818 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1819 | * lists indicating if they should be powered up or down. We |
1820 | * only check widgets that have been flagged as dirty but note | |
1821 | * that new widgets may be added to the dirty list while we | |
1822 | * iterate. | |
6d3ddc81 | 1823 | */ |
db432b41 | 1824 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1825 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1826 | } |
1827 | ||
f9de6d74 | 1828 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1829 | switch (w->id) { |
1830 | case snd_soc_dapm_pre: | |
1831 | case snd_soc_dapm_post: | |
1832 | /* These widgets always need to be powered */ | |
1833 | break; | |
1834 | default: | |
1835 | list_del_init(&w->dirty); | |
1836 | break; | |
1837 | } | |
db432b41 | 1838 | |
39eb5fd1 | 1839 | if (w->new_power) { |
f9de6d74 MB |
1840 | d = w->dapm; |
1841 | ||
1842 | /* Supplies and micbiases only bring the | |
1843 | * context up to STANDBY as unless something | |
1844 | * else is active and passing audio they | |
afe62367 MB |
1845 | * generally don't require full power. Signal |
1846 | * generators are virtual pins and have no | |
1847 | * power impact themselves. | |
f9de6d74 MB |
1848 | */ |
1849 | switch (w->id) { | |
afe62367 | 1850 | case snd_soc_dapm_siggen: |
da83fea6 | 1851 | case snd_soc_dapm_vmid: |
afe62367 | 1852 | break; |
f9de6d74 | 1853 | case snd_soc_dapm_supply: |
62ea874a | 1854 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1855 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1856 | case snd_soc_dapm_micbias: |
1857 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1858 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1859 | break; | |
1860 | default: | |
1861 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1862 | break; | |
1863 | } | |
1864 | } | |
1865 | ||
1866 | } | |
1867 | ||
85a843c5 MB |
1868 | /* Force all contexts in the card to the same bias state if |
1869 | * they're not ground referenced. | |
1870 | */ | |
56fba41f | 1871 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1872 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1873 | if (d->target_bias_level > bias) |
1874 | bias = d->target_bias_level; | |
52ba67bf | 1875 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1876 | if (!d->idle_bias_off) |
1877 | d->target_bias_level = bias; | |
52ba67bf | 1878 | |
de02d078 | 1879 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1880 | |
9d0624a7 | 1881 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1882 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1883 | async_schedule_domain(dapm_pre_sequence_async, d, |
1884 | &async_domain); | |
1885 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1886 | |
cf1f7c6e | 1887 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1888 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1889 | } |
1890 | ||
cf1f7c6e | 1891 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1892 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1893 | } |
1894 | ||
6d3ddc81 | 1895 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1896 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1897 | |
95dd5cd6 | 1898 | dapm_widget_update(card); |
97404f2e | 1899 | |
6d3ddc81 | 1900 | /* Now power up. */ |
95dd5cd6 | 1901 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1902 | |
9d0624a7 | 1903 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1904 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1905 | async_schedule_domain(dapm_post_sequence_async, d, |
1906 | &async_domain); | |
1907 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1908 | |
8078d87f LG |
1909 | /* do we need to notify any clients that DAPM event is complete */ |
1910 | list_for_each_entry(d, &card->dapm_list, list) { | |
1911 | if (d->stream_event) | |
1912 | d->stream_event(d, event); | |
1913 | } | |
1914 | ||
95dd5cd6 | 1915 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1916 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1917 | pop_wait(card->pop_time); |
cb507e7e | 1918 | |
84e90930 MB |
1919 | trace_snd_soc_dapm_done(card); |
1920 | ||
42aa3418 | 1921 | return 0; |
2b97eabc RP |
1922 | } |
1923 | ||
79fb9387 | 1924 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1925 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1926 | char __user *user_buf, | |
1927 | size_t count, loff_t *ppos) | |
1928 | { | |
1929 | struct snd_soc_dapm_widget *w = file->private_data; | |
1930 | char *buf; | |
1931 | int in, out; | |
1932 | ssize_t ret; | |
1933 | struct snd_soc_dapm_path *p = NULL; | |
1934 | ||
1935 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1936 | if (!buf) | |
1937 | return -ENOMEM; | |
1938 | ||
ec2e3031 | 1939 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1940 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1941 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1942 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1943 | |
f13ebada MB |
1944 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1945 | w->name, w->power ? "On" : "Off", | |
1946 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1947 | |
d033c36a MB |
1948 | if (w->reg >= 0) |
1949 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1950 | " - R%d(0x%x) mask 0x%x", |
1951 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1952 | |
1953 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1954 | ||
3eef08ba MB |
1955 | if (w->sname) |
1956 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1957 | w->sname, | |
1958 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1959 | |
1960 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1961 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1962 | continue; |
1963 | ||
79fb9387 MB |
1964 | if (p->connect) |
1965 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1966 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1967 | p->name ? p->name : "static", |
1968 | p->source->name); | |
1969 | } | |
1970 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1971 | if (p->connected && !p->connected(w, p->sink)) |
1972 | continue; | |
1973 | ||
79fb9387 MB |
1974 | if (p->connect) |
1975 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1976 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1977 | p->name ? p->name : "static", |
1978 | p->sink->name); | |
1979 | } | |
1980 | ||
1981 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1982 | ||
1983 | kfree(buf); | |
1984 | return ret; | |
1985 | } | |
1986 | ||
1987 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1988 | .open = simple_open, |
79fb9387 | 1989 | .read = dapm_widget_power_read_file, |
6038f373 | 1990 | .llseek = default_llseek, |
79fb9387 MB |
1991 | }; |
1992 | ||
ef49e4fa MB |
1993 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1994 | size_t count, loff_t *ppos) | |
1995 | { | |
1996 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1997 | char *level; | |
1998 | ||
1999 | switch (dapm->bias_level) { | |
2000 | case SND_SOC_BIAS_ON: | |
2001 | level = "On\n"; | |
2002 | break; | |
2003 | case SND_SOC_BIAS_PREPARE: | |
2004 | level = "Prepare\n"; | |
2005 | break; | |
2006 | case SND_SOC_BIAS_STANDBY: | |
2007 | level = "Standby\n"; | |
2008 | break; | |
2009 | case SND_SOC_BIAS_OFF: | |
2010 | level = "Off\n"; | |
2011 | break; | |
2012 | default: | |
a6ed0608 | 2013 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2014 | level = "Unknown\n"; |
2015 | break; | |
2016 | } | |
2017 | ||
2018 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2019 | strlen(level)); | |
2020 | } | |
2021 | ||
2022 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2023 | .open = simple_open, |
ef49e4fa MB |
2024 | .read = dapm_bias_read_file, |
2025 | .llseek = default_llseek, | |
2026 | }; | |
2027 | ||
8eecaf62 LPC |
2028 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2029 | struct dentry *parent) | |
79fb9387 | 2030 | { |
79fb9387 MB |
2031 | struct dentry *d; |
2032 | ||
8eecaf62 LPC |
2033 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2034 | ||
2035 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2036 | dev_warn(dapm->dev, |
30a6a1a4 | 2037 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2038 | return; |
8eecaf62 | 2039 | } |
79fb9387 | 2040 | |
ef49e4fa MB |
2041 | d = debugfs_create_file("bias_level", 0444, |
2042 | dapm->debugfs_dapm, dapm, | |
2043 | &dapm_bias_fops); | |
2044 | if (!d) | |
2045 | dev_warn(dapm->dev, | |
2046 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2047 | } |
ef49e4fa | 2048 | |
d5d1e0be LPC |
2049 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2050 | { | |
2051 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2052 | struct dentry *d; | |
79fb9387 | 2053 | |
d5d1e0be LPC |
2054 | if (!dapm->debugfs_dapm || !w->name) |
2055 | return; | |
2056 | ||
2057 | d = debugfs_create_file(w->name, 0444, | |
2058 | dapm->debugfs_dapm, w, | |
2059 | &dapm_widget_power_fops); | |
2060 | if (!d) | |
2061 | dev_warn(w->dapm->dev, | |
2062 | "ASoC: Failed to create %s debugfs file\n", | |
2063 | w->name); | |
79fb9387 | 2064 | } |
d5d1e0be | 2065 | |
6c45e126 LPC |
2066 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2067 | { | |
2068 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2069 | } | |
2070 | ||
79fb9387 | 2071 | #else |
8eecaf62 LPC |
2072 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2073 | struct dentry *parent) | |
79fb9387 MB |
2074 | { |
2075 | } | |
d5d1e0be LPC |
2076 | |
2077 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2078 | { | |
2079 | } | |
2080 | ||
6c45e126 LPC |
2081 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2082 | { | |
2083 | } | |
2084 | ||
79fb9387 MB |
2085 | #endif |
2086 | ||
2b97eabc | 2087 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2088 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2089 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2090 | { |
2091 | struct snd_soc_dapm_path *path; | |
2092 | int found = 0; | |
2093 | ||
2b97eabc | 2094 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2095 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2096 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2097 | continue; |
2098 | ||
2099 | found = 1; | |
2100 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2101 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2102 | path->connect = 1; /* new connection */ |
75c1f891 | 2103 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2104 | } else { |
2105 | if (path->connect) | |
75c1f891 MB |
2106 | dapm_mark_dirty(path->source, |
2107 | "mux disconnection"); | |
2b97eabc | 2108 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2109 | } |
ce6cfaf1 | 2110 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2111 | } |
2112 | ||
ce6cfaf1 | 2113 | if (found) |
95dd5cd6 | 2114 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2115 | |
618dae11 | 2116 | return found; |
2b97eabc | 2117 | } |
4edbb345 | 2118 | |
ce6cfaf1 | 2119 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2120 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2121 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2122 | { |
ce6cfaf1 | 2123 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2124 | int ret; |
2125 | ||
3cd04343 | 2126 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2127 | card->update = update; |
95dd5cd6 | 2128 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2129 | card->update = NULL; |
4edbb345 | 2130 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2131 | if (ret > 0) |
c3f48ae6 | 2132 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2133 | return ret; |
2134 | } | |
40f02cd9 | 2135 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2136 | |
1b075e3f | 2137 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2138 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2139 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2140 | { |
2141 | struct snd_soc_dapm_path *path; | |
2142 | int found = 0; | |
2143 | ||
2b97eabc | 2144 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2145 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2146 | found = 1; |
283375ce | 2147 | path->connect = connect; |
75c1f891 | 2148 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2149 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2150 | } |
2151 | ||
ce6cfaf1 | 2152 | if (found) |
95dd5cd6 | 2153 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2154 | |
618dae11 | 2155 | return found; |
2b97eabc | 2156 | } |
4edbb345 | 2157 | |
ce6cfaf1 | 2158 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2159 | struct snd_kcontrol *kcontrol, int connect, |
2160 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2161 | { |
ce6cfaf1 | 2162 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2163 | int ret; |
2164 | ||
3cd04343 | 2165 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2166 | card->update = update; |
95dd5cd6 | 2167 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2168 | card->update = NULL; |
4edbb345 | 2169 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2170 | if (ret > 0) |
c3f48ae6 | 2171 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2172 | return ret; |
2173 | } | |
40f02cd9 | 2174 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2175 | |
2176 | /* show dapm widget status in sys fs */ | |
2177 | static ssize_t dapm_widget_show(struct device *dev, | |
2178 | struct device_attribute *attr, char *buf) | |
2179 | { | |
36ae1a96 | 2180 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2181 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2182 | struct snd_soc_dapm_widget *w; |
2183 | int count = 0; | |
2184 | char *state = "not set"; | |
2185 | ||
97c866de JN |
2186 | list_for_each_entry(w, &codec->card->widgets, list) { |
2187 | if (w->dapm != &codec->dapm) | |
2188 | continue; | |
2b97eabc RP |
2189 | |
2190 | /* only display widgets that burnm power */ | |
2191 | switch (w->id) { | |
2192 | case snd_soc_dapm_hp: | |
2193 | case snd_soc_dapm_mic: | |
2194 | case snd_soc_dapm_spk: | |
2195 | case snd_soc_dapm_line: | |
2196 | case snd_soc_dapm_micbias: | |
2197 | case snd_soc_dapm_dac: | |
2198 | case snd_soc_dapm_adc: | |
2199 | case snd_soc_dapm_pga: | |
d88429a6 | 2200 | case snd_soc_dapm_out_drv: |
2b97eabc | 2201 | case snd_soc_dapm_mixer: |
ca9c1aae | 2202 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2203 | case snd_soc_dapm_supply: |
62ea874a | 2204 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2205 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2206 | if (w->name) |
2207 | count += sprintf(buf + count, "%s: %s\n", | |
2208 | w->name, w->power ? "On":"Off"); | |
2209 | break; | |
2210 | default: | |
2211 | break; | |
2212 | } | |
2213 | } | |
2214 | ||
ce6120cc | 2215 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2216 | case SND_SOC_BIAS_ON: |
2217 | state = "On"; | |
2b97eabc | 2218 | break; |
0be9898a MB |
2219 | case SND_SOC_BIAS_PREPARE: |
2220 | state = "Prepare"; | |
2b97eabc | 2221 | break; |
0be9898a MB |
2222 | case SND_SOC_BIAS_STANDBY: |
2223 | state = "Standby"; | |
2b97eabc | 2224 | break; |
0be9898a MB |
2225 | case SND_SOC_BIAS_OFF: |
2226 | state = "Off"; | |
2b97eabc RP |
2227 | break; |
2228 | } | |
2229 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2230 | ||
2231 | return count; | |
2232 | } | |
2233 | ||
2234 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2235 | ||
2236 | int snd_soc_dapm_sys_add(struct device *dev) | |
2237 | { | |
12ef193d | 2238 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2239 | } |
2240 | ||
2241 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2242 | { | |
aef90843 | 2243 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2244 | } |
2245 | ||
8872293f LPC |
2246 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2247 | { | |
2248 | list_del(&path->list_sink); | |
2249 | list_del(&path->list_source); | |
5106b92f | 2250 | list_del(&path->list_kcontrol); |
8872293f | 2251 | list_del(&path->list); |
8872293f LPC |
2252 | kfree(path); |
2253 | } | |
2254 | ||
2b97eabc | 2255 | /* free all dapm widgets and resources */ |
ce6120cc | 2256 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2257 | { |
2258 | struct snd_soc_dapm_widget *w, *next_w; | |
2259 | struct snd_soc_dapm_path *p, *next_p; | |
2260 | ||
97c866de JN |
2261 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2262 | if (w->dapm != dapm) | |
2263 | continue; | |
2b97eabc | 2264 | list_del(&w->list); |
8ddab3f5 JN |
2265 | /* |
2266 | * remove source and sink paths associated to this widget. | |
2267 | * While removing the path, remove reference to it from both | |
2268 | * source and sink widgets so that path is removed only once. | |
2269 | */ | |
8872293f LPC |
2270 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2271 | dapm_free_path(p); | |
2272 | ||
2273 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2274 | dapm_free_path(p); | |
2275 | ||
fad59888 | 2276 | kfree(w->kcontrols); |
ead9b919 | 2277 | kfree(w->name); |
2b97eabc RP |
2278 | kfree(w); |
2279 | } | |
2b97eabc RP |
2280 | } |
2281 | ||
91a5fca4 LPC |
2282 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2283 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2284 | bool search_other_contexts) | |
a5302181 LG |
2285 | { |
2286 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2287 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2288 | |
97c866de | 2289 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2290 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2291 | if (w->dapm == dapm) |
2292 | return w; | |
2293 | else | |
2294 | fallback = w; | |
a5302181 LG |
2295 | } |
2296 | } | |
2297 | ||
91a5fca4 LPC |
2298 | if (search_other_contexts) |
2299 | return fallback; | |
2300 | ||
2301 | return NULL; | |
2302 | } | |
2303 | ||
2304 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2305 | const char *pin, int status) | |
2306 | { | |
2307 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2308 | ||
2309 | if (!w) { | |
30a6a1a4 | 2310 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2311 | return -EINVAL; |
0d86733c MB |
2312 | } |
2313 | ||
1a8b2d9d MB |
2314 | if (w->connected != status) |
2315 | dapm_mark_dirty(w, "pin configuration"); | |
2316 | ||
91a5fca4 LPC |
2317 | w->connected = status; |
2318 | if (status == 0) | |
2319 | w->force = 0; | |
2320 | ||
2321 | return 0; | |
a5302181 LG |
2322 | } |
2323 | ||
2b97eabc | 2324 | /** |
3eb29dfb | 2325 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2326 | * @dapm: DAPM context |
2b97eabc RP |
2327 | * |
2328 | * Walks all dapm audio paths and powers widgets according to their | |
2329 | * stream or path usage. | |
2330 | * | |
3eb29dfb CK |
2331 | * Requires external locking. |
2332 | * | |
2b97eabc RP |
2333 | * Returns 0 for success. |
2334 | */ | |
3eb29dfb | 2335 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2336 | { |
4f4c0072 MB |
2337 | /* |
2338 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2339 | * silly DAPM runs during card startup. | |
2340 | */ | |
2341 | if (!dapm->card || !dapm->card->instantiated) | |
2342 | return 0; | |
2343 | ||
3eb29dfb CK |
2344 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2345 | } | |
2346 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2347 | ||
2348 | /** | |
2349 | * snd_soc_dapm_sync - scan and power dapm paths | |
2350 | * @dapm: DAPM context | |
2351 | * | |
2352 | * Walks all dapm audio paths and powers widgets according to their | |
2353 | * stream or path usage. | |
2354 | * | |
2355 | * Returns 0 for success. | |
2356 | */ | |
2357 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2358 | { | |
2359 | int ret; | |
2360 | ||
3cd04343 | 2361 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2362 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2363 | mutex_unlock(&dapm->card->dapm_mutex); |
2364 | return ret; | |
2b97eabc | 2365 | } |
a5302181 | 2366 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2367 | |
2553628e LPC |
2368 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2369 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2370 | const char *control, | |
2371 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2372 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2373 | { |
2374 | struct snd_soc_dapm_path *path; | |
2553628e | 2375 | int ret; |
2b97eabc RP |
2376 | |
2377 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2378 | if (!path) | |
2379 | return -ENOMEM; | |
2380 | ||
2381 | path->source = wsource; | |
2382 | path->sink = wsink; | |
2553628e | 2383 | path->connected = connected; |
2b97eabc | 2384 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2385 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2386 | INIT_LIST_HEAD(&path->list_source); |
2387 | INIT_LIST_HEAD(&path->list_sink); | |
2388 | ||
2389 | /* check for external widgets */ | |
2390 | if (wsink->id == snd_soc_dapm_input) { | |
2391 | if (wsource->id == snd_soc_dapm_micbias || | |
2392 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2393 | wsource->id == snd_soc_dapm_line || |
2394 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2395 | wsink->ext = 1; |
2396 | } | |
2397 | if (wsource->id == snd_soc_dapm_output) { | |
2398 | if (wsink->id == snd_soc_dapm_spk || | |
2399 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2400 | wsink->id == snd_soc_dapm_line || |
2401 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2402 | wsource->ext = 1; |
2403 | } | |
2404 | ||
34742cb0 LPC |
2405 | dapm_mark_dirty(wsource, "Route added"); |
2406 | dapm_mark_dirty(wsink, "Route added"); | |
2407 | ||
2b97eabc RP |
2408 | /* connect static paths */ |
2409 | if (control == NULL) { | |
8ddab3f5 | 2410 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2411 | list_add(&path->list_sink, &wsink->sources); |
2412 | list_add(&path->list_source, &wsource->sinks); | |
2413 | path->connect = 1; | |
2414 | return 0; | |
2415 | } | |
2416 | ||
2417 | /* connect dynamic paths */ | |
dc2bea61 | 2418 | switch (wsink->id) { |
2b97eabc RP |
2419 | case snd_soc_dapm_adc: |
2420 | case snd_soc_dapm_dac: | |
2421 | case snd_soc_dapm_pga: | |
d88429a6 | 2422 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2423 | case snd_soc_dapm_input: |
2424 | case snd_soc_dapm_output: | |
1ab97c8c | 2425 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2426 | case snd_soc_dapm_micbias: |
2427 | case snd_soc_dapm_vmid: | |
2428 | case snd_soc_dapm_pre: | |
2429 | case snd_soc_dapm_post: | |
246d0a17 | 2430 | case snd_soc_dapm_supply: |
62ea874a | 2431 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2432 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2433 | case snd_soc_dapm_aif_in: |
2434 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2435 | case snd_soc_dapm_dai_in: |
2436 | case snd_soc_dapm_dai_out: | |
c74184ed | 2437 | case snd_soc_dapm_dai_link: |
57295073 | 2438 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2439 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2440 | list_add(&path->list_sink, &wsink->sources); |
2441 | list_add(&path->list_source, &wsource->sinks); | |
2442 | path->connect = 1; | |
2443 | return 0; | |
2444 | case snd_soc_dapm_mux: | |
24ff33ac | 2445 | case snd_soc_dapm_virt_mux: |
ce6120cc | 2446 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2447 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2448 | if (ret != 0) |
2449 | goto err; | |
2450 | break; | |
2451 | case snd_soc_dapm_switch: | |
2452 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2453 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2454 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2455 | if (ret != 0) |
2456 | goto err; | |
2457 | break; | |
2458 | case snd_soc_dapm_hp: | |
2459 | case snd_soc_dapm_mic: | |
2460 | case snd_soc_dapm_line: | |
2461 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2462 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2463 | list_add(&path->list_sink, &wsink->sources); |
2464 | list_add(&path->list_source, &wsource->sinks); | |
2465 | path->connect = 0; | |
2466 | return 0; | |
2467 | } | |
fabd0384 | 2468 | |
2b97eabc | 2469 | return 0; |
2553628e LPC |
2470 | err: |
2471 | kfree(path); | |
2472 | return ret; | |
2473 | } | |
2b97eabc | 2474 | |
2553628e | 2475 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
bd23c5b6 ASL |
2476 | const struct snd_soc_dapm_route *route, |
2477 | unsigned int is_prefixed) | |
2553628e LPC |
2478 | { |
2479 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2480 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2481 | const char *sink; | |
2482 | const char *source; | |
2483 | char prefixed_sink[80]; | |
2484 | char prefixed_source[80]; | |
2485 | int ret; | |
2486 | ||
bd23c5b6 | 2487 | if (dapm->codec && dapm->codec->name_prefix && !is_prefixed) { |
2553628e LPC |
2488 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2489 | dapm->codec->name_prefix, route->sink); | |
2490 | sink = prefixed_sink; | |
2491 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2492 | dapm->codec->name_prefix, route->source); | |
2493 | source = prefixed_source; | |
2494 | } else { | |
2495 | sink = route->sink; | |
2496 | source = route->source; | |
2497 | } | |
2498 | ||
2499 | /* | |
2500 | * find src and dest widgets over all widgets but favor a widget from | |
2501 | * current DAPM context | |
2502 | */ | |
2503 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2504 | if (!wsink && !(strcmp(w->name, sink))) { | |
2505 | wtsink = w; | |
2506 | if (w->dapm == dapm) | |
2507 | wsink = w; | |
2508 | continue; | |
2509 | } | |
2510 | if (!wsource && !(strcmp(w->name, source))) { | |
2511 | wtsource = w; | |
2512 | if (w->dapm == dapm) | |
2513 | wsource = w; | |
2514 | } | |
2515 | } | |
2516 | /* use widget from another DAPM context if not found from this */ | |
2517 | if (!wsink) | |
2518 | wsink = wtsink; | |
2519 | if (!wsource) | |
2520 | wsource = wtsource; | |
2521 | ||
2522 | if (wsource == NULL) { | |
2523 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2524 | route->source); | |
2525 | return -ENODEV; | |
2526 | } | |
2527 | if (wsink == NULL) { | |
2528 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2529 | route->sink); | |
2530 | return -ENODEV; | |
2531 | } | |
2532 | ||
2533 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2534 | route->connected); | |
2535 | if (ret) | |
2536 | goto err; | |
2537 | ||
2538 | return 0; | |
2b97eabc | 2539 | err: |
30a6a1a4 | 2540 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2541 | source, route->control, sink); |
2b97eabc RP |
2542 | return ret; |
2543 | } | |
105f1c28 | 2544 | |
efcc3c61 MB |
2545 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2546 | const struct snd_soc_dapm_route *route) | |
2547 | { | |
2548 | struct snd_soc_dapm_path *path, *p; | |
2549 | const char *sink; | |
2550 | const char *source; | |
2551 | char prefixed_sink[80]; | |
2552 | char prefixed_source[80]; | |
2553 | ||
2554 | if (route->control) { | |
2555 | dev_err(dapm->dev, | |
30a6a1a4 | 2556 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2557 | return -EINVAL; |
2558 | } | |
2559 | ||
2560 | if (dapm->codec && dapm->codec->name_prefix) { | |
2561 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2562 | dapm->codec->name_prefix, route->sink); | |
2563 | sink = prefixed_sink; | |
2564 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2565 | dapm->codec->name_prefix, route->source); | |
2566 | source = prefixed_source; | |
2567 | } else { | |
2568 | sink = route->sink; | |
2569 | source = route->source; | |
2570 | } | |
2571 | ||
2572 | path = NULL; | |
2573 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2574 | if (strcmp(p->source->name, source) != 0) | |
2575 | continue; | |
2576 | if (strcmp(p->sink->name, sink) != 0) | |
2577 | continue; | |
2578 | path = p; | |
2579 | break; | |
2580 | } | |
2581 | ||
2582 | if (path) { | |
2583 | dapm_mark_dirty(path->source, "Route removed"); | |
2584 | dapm_mark_dirty(path->sink, "Route removed"); | |
2585 | ||
8872293f | 2586 | dapm_free_path(path); |
efcc3c61 | 2587 | } else { |
30a6a1a4 | 2588 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2589 | source, sink); |
2590 | } | |
2591 | ||
2592 | return 0; | |
2593 | } | |
2594 | ||
105f1c28 MB |
2595 | /** |
2596 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2597 | * @dapm: DAPM context |
105f1c28 MB |
2598 | * @route: audio routes |
2599 | * @num: number of routes | |
2600 | * | |
2601 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2602 | * the widget receiving the audio signal, whilst the source is the sender | |
2603 | * of the audio signal. | |
2604 | * | |
2605 | * Returns 0 for success else error. On error all resources can be freed | |
2606 | * with a call to snd_soc_card_free(). | |
2607 | */ | |
ce6120cc | 2608 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2609 | const struct snd_soc_dapm_route *route, int num) |
2610 | { | |
62d4a4b9 | 2611 | int i, r, ret = 0; |
105f1c28 | 2612 | |
a73fb2df | 2613 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2614 | for (i = 0; i < num; i++) { |
bd23c5b6 | 2615 | r = snd_soc_dapm_add_route(dapm, route, false); |
62d4a4b9 | 2616 | if (r < 0) { |
30a6a1a4 LG |
2617 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2618 | route->source, | |
2619 | route->control ? route->control : "direct", | |
2620 | route->sink); | |
62d4a4b9 | 2621 | ret = r; |
105f1c28 MB |
2622 | } |
2623 | route++; | |
2624 | } | |
a73fb2df | 2625 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2626 | |
60884c27 | 2627 | return ret; |
105f1c28 MB |
2628 | } |
2629 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2630 | ||
efcc3c61 MB |
2631 | /** |
2632 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2633 | * @dapm: DAPM context | |
2634 | * @route: audio routes | |
2635 | * @num: number of routes | |
2636 | * | |
2637 | * Removes routes from the DAPM context. | |
2638 | */ | |
2639 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2640 | const struct snd_soc_dapm_route *route, int num) | |
2641 | { | |
2642 | int i, ret = 0; | |
2643 | ||
2644 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2645 | for (i = 0; i < num; i++) { | |
2646 | snd_soc_dapm_del_route(dapm, route); | |
2647 | route++; | |
2648 | } | |
2649 | mutex_unlock(&dapm->card->dapm_mutex); | |
2650 | ||
2651 | return ret; | |
2652 | } | |
2653 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2654 | ||
bf3a9e13 MB |
2655 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2656 | const struct snd_soc_dapm_route *route) | |
2657 | { | |
2658 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2659 | route->source, | |
2660 | true); | |
2661 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2662 | route->sink, | |
2663 | true); | |
2664 | struct snd_soc_dapm_path *path; | |
2665 | int count = 0; | |
2666 | ||
2667 | if (!source) { | |
30a6a1a4 | 2668 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2669 | route->source); |
2670 | return -ENODEV; | |
2671 | } | |
2672 | ||
2673 | if (!sink) { | |
30a6a1a4 | 2674 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2675 | route->sink); |
2676 | return -ENODEV; | |
2677 | } | |
2678 | ||
2679 | if (route->control || route->connected) | |
30a6a1a4 | 2680 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2681 | route->source, route->sink); |
2682 | ||
2683 | list_for_each_entry(path, &source->sinks, list_source) { | |
2684 | if (path->sink == sink) { | |
2685 | path->weak = 1; | |
2686 | count++; | |
2687 | } | |
2688 | } | |
2689 | ||
2690 | if (count == 0) | |
30a6a1a4 | 2691 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2692 | route->source, route->sink); |
2693 | if (count > 1) | |
30a6a1a4 | 2694 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2695 | count, route->source, route->sink); |
2696 | ||
2697 | return 0; | |
2698 | } | |
2699 | ||
2700 | /** | |
2701 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2702 | * @dapm: DAPM context | |
2703 | * @route: audio routes | |
2704 | * @num: number of routes | |
2705 | * | |
2706 | * Mark existing routes matching those specified in the passed array | |
2707 | * as being weak, meaning that they are ignored for the purpose of | |
2708 | * power decisions. The main intended use case is for sidetone paths | |
2709 | * which couple audio between other independent paths if they are both | |
2710 | * active in order to make the combination work better at the user | |
2711 | * level but which aren't intended to be "used". | |
2712 | * | |
2713 | * Note that CODEC drivers should not use this as sidetone type paths | |
2714 | * can frequently also be used as bypass paths. | |
2715 | */ | |
2716 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2717 | const struct snd_soc_dapm_route *route, int num) | |
2718 | { | |
2719 | int i, err; | |
2720 | int ret = 0; | |
2721 | ||
a73fb2df | 2722 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2723 | for (i = 0; i < num; i++) { |
2724 | err = snd_soc_dapm_weak_route(dapm, route); | |
2725 | if (err) | |
2726 | ret = err; | |
2727 | route++; | |
2728 | } | |
a73fb2df | 2729 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2730 | |
2731 | return ret; | |
2732 | } | |
2733 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2734 | ||
2b97eabc RP |
2735 | /** |
2736 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2737 | * @dapm: DAPM context |
2b97eabc RP |
2738 | * |
2739 | * Checks the codec for any new dapm widgets and creates them if found. | |
2740 | * | |
2741 | * Returns 0 for success. | |
2742 | */ | |
824ef826 | 2743 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2744 | { |
2745 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2746 | unsigned int val; |
2b97eabc | 2747 | |
95dd5cd6 | 2748 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2749 | |
95dd5cd6 | 2750 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2751 | { |
2752 | if (w->new) | |
2753 | continue; | |
2754 | ||
fad59888 SW |
2755 | if (w->num_kcontrols) { |
2756 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2757 | sizeof(struct snd_kcontrol *), | |
2758 | GFP_KERNEL); | |
a73fb2df | 2759 | if (!w->kcontrols) { |
95dd5cd6 | 2760 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2761 | return -ENOMEM; |
a73fb2df | 2762 | } |
fad59888 SW |
2763 | } |
2764 | ||
2b97eabc RP |
2765 | switch(w->id) { |
2766 | case snd_soc_dapm_switch: | |
2767 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2768 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2769 | dapm_new_mixer(w); |
2b97eabc RP |
2770 | break; |
2771 | case snd_soc_dapm_mux: | |
24ff33ac | 2772 | case snd_soc_dapm_virt_mux: |
4b80b8c2 | 2773 | dapm_new_mux(w); |
2b97eabc | 2774 | break; |
2b97eabc | 2775 | case snd_soc_dapm_pga: |
d88429a6 | 2776 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2777 | dapm_new_pga(w); |
2b97eabc | 2778 | break; |
7ca3a18b | 2779 | default: |
2b97eabc RP |
2780 | break; |
2781 | } | |
b66a70d5 MB |
2782 | |
2783 | /* Read the initial power state from the device */ | |
2784 | if (w->reg >= 0) { | |
f7d3c170 ASL |
2785 | soc_widget_read(w, w->reg, &val); |
2786 | val = val >> w->shift; | |
de9ba98b LPC |
2787 | val &= w->mask; |
2788 | if (val == w->on_val) | |
b66a70d5 MB |
2789 | w->power = 1; |
2790 | } | |
2791 | ||
2b97eabc | 2792 | w->new = 1; |
d5d1e0be | 2793 | |
7508b12a | 2794 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2795 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2796 | } |
2797 | ||
95dd5cd6 LPC |
2798 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2799 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2800 | return 0; |
2801 | } | |
2802 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2803 | ||
2804 | /** | |
2805 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2806 | * @kcontrol: mixer control | |
ac11a2b3 | 2807 | * @ucontrol: control element information |
2b97eabc RP |
2808 | * |
2809 | * Callback to get the value of a dapm mixer control. | |
2810 | * | |
2811 | * Returns 0 for success. | |
2812 | */ | |
2813 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2814 | struct snd_ctl_elem_value *ucontrol) | |
2815 | { | |
eee5d7f9 | 2816 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2817 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2818 | struct soc_mixer_control *mc = |
2819 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2820 | int reg = mc->reg; |
815ecf8d | 2821 | unsigned int shift = mc->shift; |
4eaa9819 | 2822 | int max = mc->max; |
815ecf8d | 2823 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2824 | unsigned int invert = mc->invert; |
57295073 | 2825 | unsigned int val; |
da602ab8 BT |
2826 | |
2827 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2828 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2829 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2830 | kcontrol->id.name); |
2b97eabc | 2831 | |
57295073 | 2832 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
249ce138 | 2833 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) |
57295073 LPC |
2834 | val = (snd_soc_read(codec, reg) >> shift) & mask; |
2835 | else | |
2836 | val = dapm_kcontrol_get_value(kcontrol); | |
2837 | mutex_unlock(&card->dapm_mutex); | |
2838 | ||
da602ab8 | 2839 | if (invert) |
57295073 LPC |
2840 | ucontrol->value.integer.value[0] = max - val; |
2841 | else | |
2842 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2843 | |
2844 | return 0; | |
2845 | } | |
2846 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2847 | ||
2848 | /** | |
2849 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2850 | * @kcontrol: mixer control | |
ac11a2b3 | 2851 | * @ucontrol: control element information |
2b97eabc RP |
2852 | * |
2853 | * Callback to set the value of a dapm mixer control. | |
2854 | * | |
2855 | * Returns 0 for success. | |
2856 | */ | |
2857 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2858 | struct snd_ctl_elem_value *ucontrol) | |
2859 | { | |
eee5d7f9 | 2860 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2861 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2862 | struct soc_mixer_control *mc = |
2863 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2864 | int reg = mc->reg; |
815ecf8d | 2865 | unsigned int shift = mc->shift; |
4eaa9819 | 2866 | int max = mc->max; |
815ecf8d JS |
2867 | unsigned int mask = (1 << fls(max)) - 1; |
2868 | unsigned int invert = mc->invert; | |
e9cf7049 | 2869 | unsigned int val; |
97404f2e MB |
2870 | int connect, change; |
2871 | struct snd_soc_dapm_update update; | |
52765976 | 2872 | int ret = 0; |
2b97eabc | 2873 | |
da602ab8 | 2874 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2875 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2876 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2877 | kcontrol->id.name); |
2878 | ||
2b97eabc | 2879 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2880 | connect = !!val; |
2b97eabc RP |
2881 | |
2882 | if (invert) | |
a7a4ac86 | 2883 | val = max - val; |
2b97eabc | 2884 | |
3cd04343 | 2885 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2886 | |
249ce138 | 2887 | change = dapm_kcontrol_set_value(kcontrol, val); |
57295073 | 2888 | |
249ce138 LPC |
2889 | if (reg != SND_SOC_NOPM) { |
2890 | mask = mask << shift; | |
2891 | val = val << shift; | |
2892 | ||
2893 | change = snd_soc_test_bits(codec, reg, mask, val); | |
2894 | } | |
57295073 | 2895 | |
97404f2e | 2896 | if (change) { |
249ce138 LPC |
2897 | if (reg != SND_SOC_NOPM) { |
2898 | update.kcontrol = kcontrol; | |
2899 | update.reg = reg; | |
2900 | update.mask = mask; | |
2901 | update.val = val; | |
97404f2e | 2902 | |
249ce138 LPC |
2903 | card->update = &update; |
2904 | } | |
97404f2e | 2905 | |
52765976 | 2906 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2907 | |
564c6504 | 2908 | card->update = NULL; |
283375ce MB |
2909 | } |
2910 | ||
a73fb2df | 2911 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2912 | |
2913 | if (ret > 0) | |
2914 | soc_dpcm_runtime_update(card); | |
2915 | ||
56a67834 | 2916 | return change; |
2b97eabc RP |
2917 | } |
2918 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2919 | ||
2920 | /** | |
2921 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2922 | * @kcontrol: mixer control | |
ac11a2b3 | 2923 | * @ucontrol: control element information |
2b97eabc RP |
2924 | * |
2925 | * Callback to get the value of a dapm enumerated double mixer control. | |
2926 | * | |
2927 | * Returns 0 for success. | |
2928 | */ | |
2929 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2930 | struct snd_ctl_elem_value *ucontrol) | |
2931 | { | |
eee5d7f9 | 2932 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2933 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 2934 | unsigned int reg_val, val; |
2b97eabc | 2935 | |
3727b496 LPC |
2936 | reg_val = snd_soc_read(codec, e->reg); |
2937 | val = (reg_val >> e->shift_l) & e->mask; | |
2938 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); | |
2939 | if (e->shift_l != e->shift_r) { | |
2940 | val = (reg_val >> e->shift_r) & e->mask; | |
2941 | val = snd_soc_enum_val_to_item(e, val); | |
2942 | ucontrol->value.enumerated.item[1] = val; | |
2943 | } | |
2b97eabc RP |
2944 | |
2945 | return 0; | |
2946 | } | |
2947 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2948 | ||
2949 | /** | |
2950 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2951 | * @kcontrol: mixer control | |
ac11a2b3 | 2952 | * @ucontrol: control element information |
2b97eabc RP |
2953 | * |
2954 | * Callback to set the value of a dapm enumerated double mixer control. | |
2955 | * | |
2956 | * Returns 0 for success. | |
2957 | */ | |
2958 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2959 | struct snd_ctl_elem_value *ucontrol) | |
2960 | { | |
cf7c1de2 | 2961 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2962 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2963 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 LPC |
2964 | unsigned int *item = ucontrol->value.enumerated.item; |
2965 | unsigned int val, change; | |
86767b7d | 2966 | unsigned int mask; |
97404f2e | 2967 | struct snd_soc_dapm_update update; |
52765976 | 2968 | int ret = 0; |
2b97eabc | 2969 | |
3727b496 | 2970 | if (item[0] >= e->items) |
2b97eabc | 2971 | return -EINVAL; |
3727b496 LPC |
2972 | |
2973 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
86767b7d | 2974 | mask = e->mask << e->shift_l; |
2b97eabc | 2975 | if (e->shift_l != e->shift_r) { |
3727b496 | 2976 | if (item[1] > e->items) |
2b97eabc | 2977 | return -EINVAL; |
3727b496 | 2978 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
86767b7d | 2979 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2980 | } |
2981 | ||
3cd04343 | 2982 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2983 | |
eee5d7f9 | 2984 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2985 | if (change) { |
ce6cfaf1 LPC |
2986 | update.kcontrol = kcontrol; |
2987 | update.reg = e->reg; | |
2988 | update.mask = mask; | |
2989 | update.val = val; | |
564c6504 | 2990 | card->update = &update; |
1642e3d4 | 2991 | |
3727b496 | 2992 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
1642e3d4 | 2993 | |
564c6504 | 2994 | card->update = NULL; |
fafd2176 | 2995 | } |
2b97eabc | 2996 | |
a73fb2df | 2997 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2998 | |
2999 | if (ret > 0) | |
3000 | soc_dpcm_runtime_update(card); | |
3001 | ||
97404f2e | 3002 | return change; |
2b97eabc RP |
3003 | } |
3004 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
3005 | ||
d2b247a8 MB |
3006 | /** |
3007 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
3008 | * @kcontrol: mixer control | |
3009 | * @ucontrol: control element information | |
3010 | * | |
3011 | * Returns 0 for success. | |
3012 | */ | |
3013 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
3014 | struct snd_ctl_elem_value *ucontrol) | |
3015 | { | |
cf7c1de2 | 3016 | ucontrol->value.enumerated.item[0] = dapm_kcontrol_get_value(kcontrol); |
d2b247a8 MB |
3017 | return 0; |
3018 | } | |
3019 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
3020 | ||
3021 | /** | |
3022 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
3023 | * @kcontrol: mixer control | |
3024 | * @ucontrol: control element information | |
3025 | * | |
3026 | * Returns 0 for success. | |
3027 | */ | |
3028 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
3029 | struct snd_ctl_elem_value *ucontrol) | |
3030 | { | |
cf7c1de2 | 3031 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3032 | struct snd_soc_card *card = codec->card; |
cf7c1de2 | 3033 | unsigned int value; |
d2b247a8 MB |
3034 | struct soc_enum *e = |
3035 | (struct soc_enum *)kcontrol->private_value; | |
3036 | int change; | |
52765976 | 3037 | int ret = 0; |
d2b247a8 | 3038 | |
9a8d38db | 3039 | if (ucontrol->value.enumerated.item[0] >= e->items) |
d2b247a8 MB |
3040 | return -EINVAL; |
3041 | ||
3cd04343 | 3042 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 | 3043 | |
cf7c1de2 LPC |
3044 | value = ucontrol->value.enumerated.item[0]; |
3045 | change = dapm_kcontrol_set_value(kcontrol, value); | |
3046 | if (change) | |
52765976 | 3047 | ret = soc_dapm_mux_update_power(card, kcontrol, value, e); |
d2b247a8 | 3048 | |
a73fb2df | 3049 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3050 | |
3051 | if (ret > 0) | |
3052 | soc_dpcm_runtime_update(card); | |
3053 | ||
56a67834 | 3054 | return change; |
d2b247a8 MB |
3055 | } |
3056 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
3057 | ||
8b37dbd2 MB |
3058 | /** |
3059 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3060 | * | |
3061 | * @kcontrol: mixer control | |
3062 | * @uinfo: control element information | |
3063 | * | |
3064 | * Callback to provide information about a pin switch control. | |
3065 | */ | |
3066 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3067 | struct snd_ctl_elem_info *uinfo) | |
3068 | { | |
3069 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3070 | uinfo->count = 1; | |
3071 | uinfo->value.integer.min = 0; | |
3072 | uinfo->value.integer.max = 1; | |
3073 | ||
3074 | return 0; | |
3075 | } | |
3076 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3077 | ||
3078 | /** | |
3079 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3080 | * | |
3081 | * @kcontrol: mixer control | |
3082 | * @ucontrol: Value | |
3083 | */ | |
3084 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3085 | struct snd_ctl_elem_value *ucontrol) | |
3086 | { | |
48a8c394 | 3087 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3088 | const char *pin = (const char *)kcontrol->private_value; |
3089 | ||
3cd04343 | 3090 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3091 | |
3092 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3093 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3094 | |
a73fb2df | 3095 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3096 | |
3097 | return 0; | |
3098 | } | |
3099 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3100 | ||
3101 | /** | |
3102 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3103 | * | |
3104 | * @kcontrol: mixer control | |
3105 | * @ucontrol: Value | |
3106 | */ | |
3107 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3108 | struct snd_ctl_elem_value *ucontrol) | |
3109 | { | |
48a8c394 | 3110 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3111 | const char *pin = (const char *)kcontrol->private_value; |
3112 | ||
8b37dbd2 | 3113 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3114 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3115 | else |
48a8c394 | 3116 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3117 | |
a73fb2df | 3118 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3119 | return 0; |
3120 | } | |
3121 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3122 | ||
5ba06fc9 MB |
3123 | static struct snd_soc_dapm_widget * |
3124 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3125 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3126 | { |
3127 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3128 | int ret; |
2b97eabc RP |
3129 | |
3130 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3131 | return NULL; |
2b97eabc | 3132 | |
62ea874a MB |
3133 | switch (w->id) { |
3134 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3135 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3136 | if (IS_ERR(w->regulator)) { | |
3137 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3138 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3139 | w->name, ret); |
5ba06fc9 | 3140 | return NULL; |
62ea874a | 3141 | } |
8784c77a | 3142 | |
de9ba98b | 3143 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3144 | ret = regulator_allow_bypass(w->regulator, true); |
3145 | if (ret != 0) | |
3146 | dev_warn(w->dapm->dev, | |
30686c35 | 3147 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3148 | w->name, ret); |
3149 | } | |
62ea874a | 3150 | break; |
d7e7eb91 | 3151 | case snd_soc_dapm_clock_supply: |
165961ef | 3152 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3153 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3154 | if (IS_ERR(w->clk)) { |
3155 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3156 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3157 | w->name, ret); |
3158 | return NULL; | |
3159 | } | |
ec02995a MB |
3160 | #else |
3161 | return NULL; | |
3162 | #endif | |
d7e7eb91 | 3163 | break; |
62ea874a MB |
3164 | default: |
3165 | break; | |
3166 | } | |
2b97eabc | 3167 | |
88e8b9a8 | 3168 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3169 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3170 | dapm->codec->name_prefix, widget->name); | |
3171 | else | |
3172 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3173 | ||
ead9b919 JN |
3174 | if (w->name == NULL) { |
3175 | kfree(w); | |
5ba06fc9 | 3176 | return NULL; |
ead9b919 | 3177 | } |
ead9b919 | 3178 | |
7ca3a18b MB |
3179 | switch (w->id) { |
3180 | case snd_soc_dapm_switch: | |
3181 | case snd_soc_dapm_mixer: | |
3182 | case snd_soc_dapm_mixer_named_ctl: | |
3183 | w->power_check = dapm_generic_check_power; | |
3184 | break; | |
3185 | case snd_soc_dapm_mux: | |
3186 | case snd_soc_dapm_virt_mux: | |
7ca3a18b MB |
3187 | w->power_check = dapm_generic_check_power; |
3188 | break; | |
4616274d | 3189 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3190 | w->power_check = dapm_adc_check_power; |
3191 | break; | |
4616274d | 3192 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3193 | w->power_check = dapm_dac_check_power; |
3194 | break; | |
63c69a6e MB |
3195 | case snd_soc_dapm_adc: |
3196 | case snd_soc_dapm_aif_out: | |
3197 | case snd_soc_dapm_dac: | |
3198 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3199 | case snd_soc_dapm_pga: |
3200 | case snd_soc_dapm_out_drv: | |
3201 | case snd_soc_dapm_input: | |
3202 | case snd_soc_dapm_output: | |
3203 | case snd_soc_dapm_micbias: | |
3204 | case snd_soc_dapm_spk: | |
3205 | case snd_soc_dapm_hp: | |
3206 | case snd_soc_dapm_mic: | |
3207 | case snd_soc_dapm_line: | |
c74184ed | 3208 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3209 | w->power_check = dapm_generic_check_power; |
3210 | break; | |
3211 | case snd_soc_dapm_supply: | |
62ea874a | 3212 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3213 | case snd_soc_dapm_clock_supply: |
57295073 | 3214 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3215 | w->power_check = dapm_supply_check_power; |
3216 | break; | |
3217 | default: | |
3218 | w->power_check = dapm_always_on_check_power; | |
3219 | break; | |
3220 | } | |
3221 | ||
ce6120cc LG |
3222 | w->dapm = dapm; |
3223 | w->codec = dapm->codec; | |
b7950641 | 3224 | w->platform = dapm->platform; |
2b97eabc RP |
3225 | INIT_LIST_HEAD(&w->sources); |
3226 | INIT_LIST_HEAD(&w->sinks); | |
3227 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3228 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3229 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3230 | |
3231 | /* machine layer set ups unconnected pins and insertions */ | |
3232 | w->connected = 1; | |
5ba06fc9 | 3233 | return w; |
2b97eabc | 3234 | } |
2b97eabc | 3235 | |
4ba1327a MB |
3236 | /** |
3237 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3238 | * @dapm: DAPM context |
4ba1327a MB |
3239 | * @widget: widget array |
3240 | * @num: number of widgets | |
3241 | * | |
3242 | * Creates new DAPM controls based upon the templates. | |
3243 | * | |
3244 | * Returns 0 for success else error. | |
3245 | */ | |
ce6120cc | 3246 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3247 | const struct snd_soc_dapm_widget *widget, |
3248 | int num) | |
3249 | { | |
5ba06fc9 MB |
3250 | struct snd_soc_dapm_widget *w; |
3251 | int i; | |
60884c27 | 3252 | int ret = 0; |
4ba1327a | 3253 | |
a73fb2df | 3254 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3255 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3256 | w = snd_soc_dapm_new_control(dapm, widget); |
3257 | if (!w) { | |
f7d41ae8 | 3258 | dev_err(dapm->dev, |
5ba06fc9 MB |
3259 | "ASoC: Failed to create DAPM control %s\n", |
3260 | widget->name); | |
60884c27 DC |
3261 | ret = -ENOMEM; |
3262 | break; | |
b8b33cb5 | 3263 | } |
4ba1327a MB |
3264 | widget++; |
3265 | } | |
a73fb2df | 3266 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3267 | return ret; |
4ba1327a MB |
3268 | } |
3269 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3270 | ||
c74184ed MB |
3271 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3272 | struct snd_kcontrol *kcontrol, int event) | |
3273 | { | |
3274 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3275 | struct snd_soc_dai *source, *sink; | |
3276 | const struct snd_soc_pcm_stream *config = w->params; | |
3277 | struct snd_pcm_substream substream; | |
9747cec2 | 3278 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3279 | u64 fmt; |
3280 | int ret; | |
3281 | ||
bf4edea8 TI |
3282 | if (WARN_ON(!config) || |
3283 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3284 | return -EINVAL; | |
c74184ed MB |
3285 | |
3286 | /* We only support a single source and sink, pick the first */ | |
3287 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3288 | list_sink); | |
3289 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3290 | list_source); | |
3291 | ||
bf4edea8 TI |
3292 | if (WARN_ON(!source_p || !sink_p) || |
3293 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3294 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3295 | return -EINVAL; | |
c74184ed MB |
3296 | |
3297 | source = source_p->source->priv; | |
3298 | sink = sink_p->sink->priv; | |
3299 | ||
3300 | /* Be a little careful as we don't want to overflow the mask array */ | |
3301 | if (config->formats) { | |
3302 | fmt = ffs(config->formats) - 1; | |
3303 | } else { | |
30a6a1a4 | 3304 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3305 | config->formats); |
3306 | fmt = 0; | |
3307 | } | |
3308 | ||
3309 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3310 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3311 | if (!params) { | |
3312 | ret = -ENOMEM; | |
3313 | goto out; | |
3314 | } | |
3315 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3316 | |
9747cec2 | 3317 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3318 | config->rate_min; |
9747cec2 | 3319 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3320 | config->rate_max; |
3321 | ||
9747cec2 | 3322 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3323 | = config->channels_min; |
9747cec2 | 3324 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3325 | = config->channels_max; |
3326 | ||
3327 | memset(&substream, 0, sizeof(substream)); | |
3328 | ||
3329 | switch (event) { | |
3330 | case SND_SOC_DAPM_PRE_PMU: | |
3331 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3332 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3333 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3334 | params, source); |
c74184ed MB |
3335 | if (ret != 0) { |
3336 | dev_err(source->dev, | |
30a6a1a4 | 3337 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3338 | goto out; |
c74184ed MB |
3339 | } |
3340 | } | |
3341 | ||
3342 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3343 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3344 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3345 | sink); |
3346 | if (ret != 0) { | |
3347 | dev_err(sink->dev, | |
30a6a1a4 | 3348 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3349 | goto out; |
c74184ed MB |
3350 | } |
3351 | } | |
3352 | break; | |
3353 | ||
3354 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3355 | ret = snd_soc_dai_digital_mute(sink, 0, |
3356 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3357 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3358 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3359 | ret = 0; |
c74184ed MB |
3360 | break; |
3361 | ||
3362 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3363 | ret = snd_soc_dai_digital_mute(sink, 1, |
3364 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3365 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3366 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3367 | ret = 0; |
c74184ed MB |
3368 | break; |
3369 | ||
3370 | default: | |
a6ed0608 | 3371 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3372 | return -EINVAL; |
3373 | } | |
3374 | ||
9747cec2 MB |
3375 | out: |
3376 | kfree(params); | |
3377 | return ret; | |
c74184ed MB |
3378 | } |
3379 | ||
3380 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3381 | const struct snd_soc_pcm_stream *params, | |
3382 | struct snd_soc_dapm_widget *source, | |
3383 | struct snd_soc_dapm_widget *sink) | |
3384 | { | |
3385 | struct snd_soc_dapm_route routes[2]; | |
3386 | struct snd_soc_dapm_widget template; | |
3387 | struct snd_soc_dapm_widget *w; | |
3388 | size_t len; | |
3389 | char *link_name; | |
3390 | ||
3391 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3392 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3393 | if (!link_name) | |
3394 | return -ENOMEM; | |
3395 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3396 | ||
3397 | memset(&template, 0, sizeof(template)); | |
3398 | template.reg = SND_SOC_NOPM; | |
3399 | template.id = snd_soc_dapm_dai_link; | |
3400 | template.name = link_name; | |
3401 | template.event = snd_soc_dai_link_event; | |
3402 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3403 | SND_SOC_DAPM_PRE_PMD; | |
3404 | ||
30a6a1a4 | 3405 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3406 | |
3407 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3408 | if (!w) { | |
30a6a1a4 | 3409 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3410 | link_name); |
3411 | return -ENOMEM; | |
3412 | } | |
3413 | ||
3414 | w->params = params; | |
3415 | ||
3416 | memset(&routes, 0, sizeof(routes)); | |
3417 | ||
3418 | routes[0].source = source->name; | |
3419 | routes[0].sink = link_name; | |
3420 | routes[1].source = link_name; | |
3421 | routes[1].sink = sink->name; | |
3422 | ||
3423 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3424 | ARRAY_SIZE(routes)); | |
3425 | } | |
3426 | ||
888df395 MB |
3427 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3428 | struct snd_soc_dai *dai) | |
2b97eabc | 3429 | { |
888df395 | 3430 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3431 | struct snd_soc_dapm_widget *w; |
3432 | ||
888df395 MB |
3433 | WARN_ON(dapm->dev != dai->dev); |
3434 | ||
3435 | memset(&template, 0, sizeof(template)); | |
3436 | template.reg = SND_SOC_NOPM; | |
3437 | ||
3438 | if (dai->driver->playback.stream_name) { | |
4616274d | 3439 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3440 | template.name = dai->driver->playback.stream_name; |
3441 | template.sname = dai->driver->playback.stream_name; | |
3442 | ||
30a6a1a4 | 3443 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3444 | template.name); |
3445 | ||
3446 | w = snd_soc_dapm_new_control(dapm, &template); | |
3447 | if (!w) { | |
30a6a1a4 | 3448 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3449 | dai->driver->playback.stream_name); |
298402a3 | 3450 | return -ENOMEM; |
888df395 MB |
3451 | } |
3452 | ||
3453 | w->priv = dai; | |
3454 | dai->playback_widget = w; | |
3455 | } | |
3456 | ||
3457 | if (dai->driver->capture.stream_name) { | |
4616274d | 3458 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3459 | template.name = dai->driver->capture.stream_name; |
3460 | template.sname = dai->driver->capture.stream_name; | |
3461 | ||
30a6a1a4 | 3462 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3463 | template.name); |
3464 | ||
3465 | w = snd_soc_dapm_new_control(dapm, &template); | |
3466 | if (!w) { | |
30a6a1a4 | 3467 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3468 | dai->driver->capture.stream_name); |
298402a3 | 3469 | return -ENOMEM; |
888df395 MB |
3470 | } |
3471 | ||
3472 | w->priv = dai; | |
3473 | dai->capture_widget = w; | |
3474 | } | |
3475 | ||
3476 | return 0; | |
3477 | } | |
3478 | ||
3479 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3480 | { | |
3481 | struct snd_soc_dapm_widget *dai_w, *w; | |
3482 | struct snd_soc_dai *dai; | |
888df395 MB |
3483 | |
3484 | /* For each DAI widget... */ | |
3485 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3486 | switch (dai_w->id) { |
3487 | case snd_soc_dapm_dai_in: | |
3488 | case snd_soc_dapm_dai_out: | |
3489 | break; | |
3490 | default: | |
2b97eabc | 3491 | continue; |
4616274d | 3492 | } |
888df395 MB |
3493 | |
3494 | dai = dai_w->priv; | |
3495 | ||
3496 | /* ...find all widgets with the same stream and link them */ | |
3497 | list_for_each_entry(w, &card->widgets, list) { | |
3498 | if (w->dapm != dai_w->dapm) | |
3499 | continue; | |
3500 | ||
4616274d MB |
3501 | switch (w->id) { |
3502 | case snd_soc_dapm_dai_in: | |
3503 | case snd_soc_dapm_dai_out: | |
888df395 | 3504 | continue; |
4616274d MB |
3505 | default: |
3506 | break; | |
3507 | } | |
888df395 | 3508 | |
19c2c5f5 | 3509 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3510 | continue; |
3511 | ||
3512 | if (dai->driver->playback.stream_name && | |
3513 | strstr(w->sname, | |
3514 | dai->driver->playback.stream_name)) { | |
888df395 | 3515 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3516 | dai->playback_widget->name, w->name); |
888df395 | 3517 | |
2553628e LPC |
3518 | snd_soc_dapm_add_path(w->dapm, |
3519 | dai->playback_widget, w, NULL, NULL); | |
888df395 MB |
3520 | } |
3521 | ||
3522 | if (dai->driver->capture.stream_name && | |
3523 | strstr(w->sname, | |
3524 | dai->driver->capture.stream_name)) { | |
888df395 | 3525 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3526 | w->name, dai->capture_widget->name); |
888df395 | 3527 | |
2553628e LPC |
3528 | snd_soc_dapm_add_path(w->dapm, w, |
3529 | dai->capture_widget, NULL, NULL); | |
2b97eabc RP |
3530 | } |
3531 | } | |
3532 | } | |
2b97eabc | 3533 | |
888df395 MB |
3534 | return 0; |
3535 | } | |
64a648c2 | 3536 | |
b893ea5f LG |
3537 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3538 | { | |
3539 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3540 | struct snd_soc_dai *cpu_dai, *codec_dai; | |
3541 | struct snd_soc_dapm_route r; | |
3542 | int i; | |
3543 | ||
3544 | memset(&r, 0, sizeof(r)); | |
3545 | ||
3546 | /* for each BE DAI link... */ | |
3547 | for (i = 0; i < card->num_rtd; i++) { | |
3548 | rtd = &card->rtd[i]; | |
3549 | cpu_dai = rtd->cpu_dai; | |
3550 | codec_dai = rtd->codec_dai; | |
3551 | ||
3552 | /* dynamic FE links have no fixed DAI mapping */ | |
3553 | if (rtd->dai_link->dynamic) | |
3554 | continue; | |
3555 | ||
3556 | /* there is no point in connecting BE DAI links with dummies */ | |
3557 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3558 | snd_soc_dai_is_dummy(cpu_dai)) | |
3559 | continue; | |
3560 | ||
3561 | /* connect BE DAI playback if widgets are valid */ | |
3562 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
3563 | r.source = cpu_dai->playback_widget->name; | |
3564 | r.sink = codec_dai->playback_widget->name; | |
3565 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", | |
3566 | cpu_dai->codec->name, r.source, | |
3567 | codec_dai->platform->name, r.sink); | |
3568 | ||
bd23c5b6 | 3569 | snd_soc_dapm_add_route(&card->dapm, &r, true); |
b893ea5f LG |
3570 | } |
3571 | ||
3572 | /* connect BE DAI capture if widgets are valid */ | |
3573 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
3574 | r.source = codec_dai->capture_widget->name; | |
3575 | r.sink = cpu_dai->capture_widget->name; | |
3576 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", | |
3577 | codec_dai->codec->name, r.source, | |
3578 | cpu_dai->platform->name, r.sink); | |
3579 | ||
bd23c5b6 | 3580 | snd_soc_dapm_add_route(&card->dapm, &r, true); |
b893ea5f LG |
3581 | } |
3582 | ||
3583 | } | |
3584 | } | |
3585 | ||
d9b0951b LG |
3586 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3587 | int event) | |
2b97eabc | 3588 | { |
7bd3a6f3 | 3589 | |
d9b0951b LG |
3590 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3591 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3592 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3593 | |
d9b0951b LG |
3594 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3595 | w_cpu = cpu_dai->playback_widget; | |
3596 | w_codec = codec_dai->playback_widget; | |
3597 | } else { | |
3598 | w_cpu = cpu_dai->capture_widget; | |
3599 | w_codec = codec_dai->capture_widget; | |
3600 | } | |
2b97eabc | 3601 | |
d9b0951b | 3602 | if (w_cpu) { |
fe360685 | 3603 | |
d9b0951b LG |
3604 | dapm_mark_dirty(w_cpu, "stream event"); |
3605 | ||
3606 | switch (event) { | |
3607 | case SND_SOC_DAPM_STREAM_START: | |
3608 | w_cpu->active = 1; | |
3609 | break; | |
3610 | case SND_SOC_DAPM_STREAM_STOP: | |
3611 | w_cpu->active = 0; | |
3612 | break; | |
3613 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3614 | case SND_SOC_DAPM_STREAM_RESUME: | |
3615 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3616 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3617 | break; | |
3618 | } | |
3619 | } | |
3620 | ||
3621 | if (w_codec) { | |
3622 | ||
3623 | dapm_mark_dirty(w_codec, "stream event"); | |
3624 | ||
3625 | switch (event) { | |
3626 | case SND_SOC_DAPM_STREAM_START: | |
3627 | w_codec->active = 1; | |
3628 | break; | |
3629 | case SND_SOC_DAPM_STREAM_STOP: | |
3630 | w_codec->active = 0; | |
3631 | break; | |
3632 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3633 | case SND_SOC_DAPM_STREAM_RESUME: | |
3634 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3635 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3636 | break; | |
3637 | } | |
2b97eabc | 3638 | } |
2b97eabc | 3639 | |
95dd5cd6 | 3640 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3641 | } |
3642 | ||
3643 | /** | |
3644 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3645 | * @rtd: PCM runtime data | |
3646 | * @stream: stream name | |
3647 | * @event: stream event | |
3648 | * | |
3649 | * Sends a stream event to the dapm core. The core then makes any | |
3650 | * necessary widget power changes. | |
3651 | * | |
3652 | * Returns 0 for success else error. | |
3653 | */ | |
d9b0951b LG |
3654 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3655 | int event) | |
ce6120cc | 3656 | { |
a73fb2df | 3657 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3658 | |
3cd04343 | 3659 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3660 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3661 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3662 | } |
2b97eabc | 3663 | |
11391100 CK |
3664 | /** |
3665 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3666 | * @dapm: DAPM context | |
3667 | * @pin: pin name | |
3668 | * | |
3669 | * Enables input/output pin and its parents or children widgets iff there is | |
3670 | * a valid audio route and active audio stream. | |
3671 | * | |
3672 | * Requires external locking. | |
3673 | * | |
3674 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3675 | * do any widget power switching. | |
3676 | */ | |
3677 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3678 | const char *pin) | |
3679 | { | |
3680 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3681 | } | |
3682 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3683 | ||
2b97eabc | 3684 | /** |
a5302181 | 3685 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3686 | * @dapm: DAPM context |
a5302181 | 3687 | * @pin: pin name |
2b97eabc | 3688 | * |
74b8f955 | 3689 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3690 | * a valid audio route and active audio stream. |
11391100 | 3691 | * |
a5302181 LG |
3692 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3693 | * do any widget power switching. | |
2b97eabc | 3694 | */ |
ce6120cc | 3695 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3696 | { |
11391100 CK |
3697 | int ret; |
3698 | ||
3699 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3700 | ||
3701 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3702 | ||
3703 | mutex_unlock(&dapm->card->dapm_mutex); | |
3704 | ||
3705 | return ret; | |
a5302181 LG |
3706 | } |
3707 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3708 | |
da34183e | 3709 | /** |
11391100 | 3710 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3711 | * @dapm: DAPM context |
da34183e MB |
3712 | * @pin: pin name |
3713 | * | |
3714 | * Enables input/output pin regardless of any other state. This is | |
3715 | * intended for use with microphone bias supplies used in microphone | |
3716 | * jack detection. | |
3717 | * | |
11391100 CK |
3718 | * Requires external locking. |
3719 | * | |
da34183e MB |
3720 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3721 | * do any widget power switching. | |
3722 | */ | |
11391100 CK |
3723 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3724 | const char *pin) | |
da34183e | 3725 | { |
91a5fca4 | 3726 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3727 | |
91a5fca4 | 3728 | if (!w) { |
30a6a1a4 | 3729 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3730 | return -EINVAL; |
0d86733c MB |
3731 | } |
3732 | ||
30a6a1a4 | 3733 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3734 | w->connected = 1; |
3735 | w->force = 1; | |
75c1f891 | 3736 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3737 | |
91a5fca4 | 3738 | return 0; |
da34183e | 3739 | } |
11391100 CK |
3740 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3741 | ||
3742 | /** | |
3743 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3744 | * @dapm: DAPM context | |
3745 | * @pin: pin name | |
3746 | * | |
3747 | * Enables input/output pin regardless of any other state. This is | |
3748 | * intended for use with microphone bias supplies used in microphone | |
3749 | * jack detection. | |
3750 | * | |
3751 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3752 | * do any widget power switching. | |
3753 | */ | |
3754 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3755 | const char *pin) | |
3756 | { | |
3757 | int ret; | |
3758 | ||
3759 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3760 | ||
3761 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3762 | ||
3763 | mutex_unlock(&dapm->card->dapm_mutex); | |
3764 | ||
3765 | return ret; | |
3766 | } | |
da34183e MB |
3767 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3768 | ||
11391100 CK |
3769 | /** |
3770 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3771 | * @dapm: DAPM context | |
3772 | * @pin: pin name | |
3773 | * | |
3774 | * Disables input/output pin and its parents or children widgets. | |
3775 | * | |
3776 | * Requires external locking. | |
3777 | * | |
3778 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3779 | * do any widget power switching. | |
3780 | */ | |
3781 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3782 | const char *pin) | |
3783 | { | |
3784 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3785 | } | |
3786 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3787 | ||
a5302181 LG |
3788 | /** |
3789 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3790 | * @dapm: DAPM context |
a5302181 LG |
3791 | * @pin: pin name |
3792 | * | |
74b8f955 | 3793 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3794 | * |
a5302181 LG |
3795 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3796 | * do any widget power switching. | |
3797 | */ | |
ce6120cc LG |
3798 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3799 | const char *pin) | |
a5302181 | 3800 | { |
11391100 CK |
3801 | int ret; |
3802 | ||
3803 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3804 | ||
3805 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3806 | ||
3807 | mutex_unlock(&dapm->card->dapm_mutex); | |
3808 | ||
3809 | return ret; | |
2b97eabc | 3810 | } |
a5302181 | 3811 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3812 | |
11391100 CK |
3813 | /** |
3814 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3815 | * @dapm: DAPM context | |
3816 | * @pin: pin name | |
3817 | * | |
3818 | * Marks the specified pin as being not connected, disabling it along | |
3819 | * any parent or child widgets. At present this is identical to | |
3820 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3821 | * additional things such as disabling controls which only affect | |
3822 | * paths through the pin. | |
3823 | * | |
3824 | * Requires external locking. | |
3825 | * | |
3826 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3827 | * do any widget power switching. | |
3828 | */ | |
3829 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3830 | const char *pin) | |
3831 | { | |
3832 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3833 | } | |
3834 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3835 | ||
5817b52a MB |
3836 | /** |
3837 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3838 | * @dapm: DAPM context |
5817b52a MB |
3839 | * @pin: pin name |
3840 | * | |
3841 | * Marks the specified pin as being not connected, disabling it along | |
3842 | * any parent or child widgets. At present this is identical to | |
3843 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3844 | * additional things such as disabling controls which only affect | |
3845 | * paths through the pin. | |
3846 | * | |
3847 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3848 | * do any widget power switching. | |
3849 | */ | |
ce6120cc | 3850 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3851 | { |
11391100 CK |
3852 | int ret; |
3853 | ||
3854 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3855 | ||
3856 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3857 | ||
3858 | mutex_unlock(&dapm->card->dapm_mutex); | |
3859 | ||
3860 | return ret; | |
5817b52a MB |
3861 | } |
3862 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3863 | ||
eeec12bf | 3864 | /** |
a5302181 | 3865 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3866 | * @dapm: DAPM context |
a5302181 | 3867 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3868 | * |
a5302181 | 3869 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3870 | * |
a5302181 | 3871 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3872 | */ |
ce6120cc LG |
3873 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3874 | const char *pin) | |
eeec12bf | 3875 | { |
91a5fca4 | 3876 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3877 | |
91a5fca4 LPC |
3878 | if (w) |
3879 | return w->connected; | |
a68b38ad | 3880 | |
eeec12bf GG |
3881 | return 0; |
3882 | } | |
a5302181 | 3883 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3884 | |
1547aba9 MB |
3885 | /** |
3886 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3887 | * @dapm: DAPM context |
1547aba9 MB |
3888 | * @pin: audio signal pin endpoint (or start point) |
3889 | * | |
3890 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3891 | * system is disabled a path between two endpoints flagged as ignoring | |
3892 | * suspend will not be disabled. The path must already be enabled via | |
3893 | * normal means at suspend time, it will not be turned on if it was not | |
3894 | * already enabled. | |
3895 | */ | |
ce6120cc LG |
3896 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3897 | const char *pin) | |
1547aba9 | 3898 | { |
91a5fca4 | 3899 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3900 | |
91a5fca4 | 3901 | if (!w) { |
30a6a1a4 | 3902 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3903 | return -EINVAL; |
1547aba9 MB |
3904 | } |
3905 | ||
91a5fca4 LPC |
3906 | w->ignore_suspend = 1; |
3907 | ||
3908 | return 0; | |
1547aba9 MB |
3909 | } |
3910 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3911 | ||
1633281b SW |
3912 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3913 | struct snd_soc_dapm_widget *w) | |
3914 | { | |
3915 | struct snd_soc_dapm_path *p; | |
3916 | ||
3917 | list_for_each_entry(p, &card->paths, list) { | |
3918 | if ((p->source == w) || (p->sink == w)) { | |
3919 | dev_dbg(card->dev, | |
3920 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3921 | p->source->name, p->source->id, p->source->dapm, | |
3922 | p->sink->name, p->sink->id, p->sink->dapm); | |
3923 | ||
3924 | /* Connected to something other than the codec */ | |
3925 | if (p->source->dapm != p->sink->dapm) | |
3926 | return true; | |
3927 | /* | |
3928 | * Loopback connection from codec external pin to | |
3929 | * codec external pin | |
3930 | */ | |
3931 | if (p->sink->id == snd_soc_dapm_input) { | |
3932 | switch (p->source->id) { | |
3933 | case snd_soc_dapm_output: | |
3934 | case snd_soc_dapm_micbias: | |
3935 | return true; | |
3936 | default: | |
3937 | break; | |
3938 | } | |
3939 | } | |
3940 | } | |
3941 | } | |
3942 | ||
3943 | return false; | |
3944 | } | |
3945 | ||
3946 | /** | |
3947 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3948 | * @codec: The codec whose pins should be processed | |
3949 | * | |
3950 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3951 | * which are unused. Pins are used if they are connected externally to the | |
3952 | * codec, whether that be to some other device, or a loop-back connection to | |
3953 | * the codec itself. | |
3954 | */ | |
3955 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3956 | { | |
3957 | struct snd_soc_card *card = codec->card; | |
3958 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3959 | struct snd_soc_dapm_widget *w; | |
3960 | ||
30a6a1a4 | 3961 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3962 | &card->dapm, &codec->dapm); |
3963 | ||
3964 | list_for_each_entry(w, &card->widgets, list) { | |
3965 | if (w->dapm != dapm) | |
3966 | continue; | |
3967 | switch (w->id) { | |
3968 | case snd_soc_dapm_input: | |
3969 | case snd_soc_dapm_output: | |
3970 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3971 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3972 | w->name); |
3973 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3974 | dev_dbg(codec->dev, |
1633281b SW |
3975 | "... Not in map; disabling\n"); |
3976 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3977 | } | |
3978 | break; | |
3979 | default: | |
3980 | break; | |
3981 | } | |
3982 | } | |
3983 | } | |
3984 | ||
2b97eabc RP |
3985 | /** |
3986 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3987 | * @dapm: DAPM context |
2b97eabc RP |
3988 | * |
3989 | * Free all dapm widgets and resources. | |
3990 | */ | |
ce6120cc | 3991 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3992 | { |
ce6120cc | 3993 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3994 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3995 | dapm_free_widgets(dapm); |
7be31be8 | 3996 | list_del(&dapm->list); |
2b97eabc RP |
3997 | } |
3998 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3999 | ||
ce6120cc | 4000 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 4001 | { |
01005a72 | 4002 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4003 | struct snd_soc_dapm_widget *w; |
4004 | LIST_HEAD(down_list); | |
4005 | int powerdown = 0; | |
4006 | ||
01005a72 LG |
4007 | mutex_lock(&card->dapm_mutex); |
4008 | ||
97c866de JN |
4009 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4010 | if (w->dapm != dapm) | |
4011 | continue; | |
51737470 | 4012 | if (w->power) { |
828a842f | 4013 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4014 | w->power = 0; |
51737470 MB |
4015 | powerdown = 1; |
4016 | } | |
4017 | } | |
4018 | ||
4019 | /* If there were no widgets to power down we're already in | |
4020 | * standby. | |
4021 | */ | |
4022 | if (powerdown) { | |
7679e42e MB |
4023 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4024 | snd_soc_dapm_set_bias_level(dapm, | |
4025 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4026 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4027 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4028 | snd_soc_dapm_set_bias_level(dapm, | |
4029 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4030 | } |
01005a72 LG |
4031 | |
4032 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4033 | } |
4034 | ||
4035 | /* | |
4036 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4037 | */ | |
4038 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4039 | { | |
4040 | struct snd_soc_codec *codec; | |
4041 | ||
445632ad | 4042 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 4043 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
4044 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
4045 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
4046 | SND_SOC_BIAS_OFF); | |
ce6120cc | 4047 | } |
51737470 MB |
4048 | } |
4049 | ||
2b97eabc | 4050 | /* Module information */ |
d331124d | 4051 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4052 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4053 | MODULE_LICENSE("GPL"); |