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, | |
74 | [snd_soc_dapm_value_mux] = 6, | |
75 | [snd_soc_dapm_dac] = 7, | |
76 | [snd_soc_dapm_switch] = 8, | |
77 | [snd_soc_dapm_mixer] = 8, | |
78 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
79 | [snd_soc_dapm_pga] = 9, | |
80 | [snd_soc_dapm_adc] = 10, | |
81 | [snd_soc_dapm_out_drv] = 11, | |
82 | [snd_soc_dapm_hp] = 11, | |
83 | [snd_soc_dapm_spk] = 11, | |
84 | [snd_soc_dapm_line] = 11, | |
85 | [snd_soc_dapm_kcontrol] = 12, | |
86 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 87 | }; |
ca9c1aae | 88 | |
2b97eabc | 89 | static int dapm_down_seq[] = { |
38357ab2 | 90 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
91 | [snd_soc_dapm_kcontrol] = 1, |
92 | [snd_soc_dapm_adc] = 2, | |
93 | [snd_soc_dapm_hp] = 3, | |
94 | [snd_soc_dapm_spk] = 3, | |
95 | [snd_soc_dapm_line] = 3, | |
96 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 97 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 98 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 99 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
100 | [snd_soc_dapm_mixer] = 5, |
101 | [snd_soc_dapm_dac] = 6, | |
102 | [snd_soc_dapm_mic] = 7, | |
103 | [snd_soc_dapm_micbias] = 8, | |
104 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 105 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 106 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
107 | [snd_soc_dapm_aif_in] = 10, |
108 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
109 | [snd_soc_dapm_dai_in] = 10, |
110 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 111 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 112 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
113 | [snd_soc_dapm_clock_supply] = 13, |
114 | [snd_soc_dapm_regulator_supply] = 13, | |
115 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
116 | }; |
117 | ||
12ef193d | 118 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
119 | { |
120 | if (pop_time) | |
121 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
122 | } | |
123 | ||
fd8d3bc0 | 124 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
125 | { |
126 | va_list args; | |
fd8d3bc0 | 127 | char *buf; |
15e4c72f | 128 | |
fd8d3bc0 JN |
129 | if (!pop_time) |
130 | return; | |
15e4c72f | 131 | |
fd8d3bc0 JN |
132 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
133 | if (buf == NULL) | |
134 | return; | |
15e4c72f | 135 | |
fd8d3bc0 JN |
136 | va_start(args, fmt); |
137 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 138 | dev_info(dev, "%s", buf); |
15e4c72f | 139 | va_end(args); |
fd8d3bc0 JN |
140 | |
141 | kfree(buf); | |
15e4c72f MB |
142 | } |
143 | ||
db432b41 MB |
144 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
145 | { | |
146 | return !list_empty(&w->dirty); | |
147 | } | |
148 | ||
25c77c5f | 149 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 150 | { |
75c1f891 MB |
151 | if (!dapm_dirty_widget(w)) { |
152 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
153 | w->name, reason); | |
db432b41 | 154 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 155 | } |
db432b41 | 156 | } |
25c77c5f | 157 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 158 | |
e2d32ff6 MB |
159 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
160 | { | |
161 | struct snd_soc_card *card = dapm->card; | |
162 | struct snd_soc_dapm_widget *w; | |
163 | ||
164 | mutex_lock(&card->dapm_mutex); | |
165 | ||
166 | list_for_each_entry(w, &card->widgets, list) { | |
167 | switch (w->id) { | |
168 | case snd_soc_dapm_input: | |
169 | case snd_soc_dapm_output: | |
170 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
171 | break; | |
172 | default: | |
173 | break; | |
174 | } | |
175 | } | |
176 | ||
177 | mutex_unlock(&card->dapm_mutex); | |
178 | } | |
179 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
180 | ||
2b97eabc | 181 | /* create a new dapm widget */ |
88cb4290 | 182 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
183 | const struct snd_soc_dapm_widget *_widget) |
184 | { | |
88cb4290 | 185 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
186 | } |
187 | ||
e84357f7 | 188 | struct dapm_kcontrol_data { |
cf7c1de2 | 189 | unsigned int value; |
57295073 | 190 | struct snd_soc_dapm_widget *widget; |
5106b92f | 191 | struct list_head paths; |
2c75bdf3 | 192 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
193 | }; |
194 | ||
195 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
196 | struct snd_kcontrol *kcontrol) | |
197 | { | |
198 | struct dapm_kcontrol_data *data; | |
57295073 | 199 | struct soc_mixer_control *mc; |
e84357f7 | 200 | |
2c75bdf3 | 201 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
202 | if (!data) { |
203 | dev_err(widget->dapm->dev, | |
204 | "ASoC: can't allocate kcontrol data for %s\n", | |
205 | widget->name); | |
206 | return -ENOMEM; | |
207 | } | |
208 | ||
5106b92f | 209 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 210 | |
57295073 LPC |
211 | switch (widget->id) { |
212 | case snd_soc_dapm_switch: | |
213 | case snd_soc_dapm_mixer: | |
214 | case snd_soc_dapm_mixer_named_ctl: | |
215 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
216 | ||
217 | if (mc->autodisable) { | |
218 | struct snd_soc_dapm_widget template; | |
219 | ||
220 | memset(&template, 0, sizeof(template)); | |
221 | template.reg = mc->reg; | |
222 | template.mask = (1 << fls(mc->max)) - 1; | |
223 | template.shift = mc->shift; | |
224 | if (mc->invert) | |
225 | template.off_val = mc->max; | |
226 | else | |
227 | template.off_val = 0; | |
228 | template.on_val = template.off_val; | |
229 | template.id = snd_soc_dapm_kcontrol; | |
230 | template.name = kcontrol->id.name; | |
231 | ||
2daabd78 LPC |
232 | data->value = template.on_val; |
233 | ||
57295073 LPC |
234 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
235 | &template); | |
236 | if (!data->widget) { | |
237 | kfree(data); | |
238 | return -ENOMEM; | |
239 | } | |
240 | } | |
241 | break; | |
242 | default: | |
243 | break; | |
244 | } | |
245 | ||
e84357f7 LPC |
246 | kcontrol->private_data = data; |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
252 | { | |
253 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
57295073 | 254 | kfree(data->widget); |
2c75bdf3 | 255 | kfree(data->wlist); |
e84357f7 LPC |
256 | kfree(data); |
257 | } | |
258 | ||
259 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
260 | const struct snd_kcontrol *kcontrol) | |
261 | { | |
262 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
263 | ||
2c75bdf3 | 264 | return data->wlist; |
e84357f7 LPC |
265 | } |
266 | ||
267 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
268 | struct snd_soc_dapm_widget *widget) | |
269 | { | |
270 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
271 | struct snd_soc_dapm_widget_list *new_wlist; |
272 | unsigned int n; | |
e84357f7 | 273 | |
2c75bdf3 LPC |
274 | if (data->wlist) |
275 | n = data->wlist->num_widgets + 1; | |
276 | else | |
277 | n = 1; | |
278 | ||
279 | new_wlist = krealloc(data->wlist, | |
280 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
281 | if (!new_wlist) | |
e84357f7 LPC |
282 | return -ENOMEM; |
283 | ||
2c75bdf3 LPC |
284 | new_wlist->widgets[n - 1] = widget; |
285 | new_wlist->num_widgets = n; | |
e84357f7 | 286 | |
2c75bdf3 | 287 | data->wlist = new_wlist; |
e84357f7 LPC |
288 | |
289 | return 0; | |
290 | } | |
291 | ||
5106b92f LPC |
292 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
293 | struct snd_soc_dapm_path *path) | |
294 | { | |
295 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
296 | ||
297 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
298 | |
299 | if (data->widget) { | |
300 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
301 | path->source, NULL, NULL); | |
302 | } | |
303 | } | |
304 | ||
305 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
306 | { | |
307 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
308 | ||
309 | if (!data->widget) | |
310 | return true; | |
311 | ||
312 | return data->widget->power; | |
5106b92f LPC |
313 | } |
314 | ||
315 | static struct list_head *dapm_kcontrol_get_path_list( | |
316 | const struct snd_kcontrol *kcontrol) | |
317 | { | |
318 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
319 | ||
320 | return &data->paths; | |
321 | } | |
322 | ||
323 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
324 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
325 | list_kcontrol) | |
326 | ||
cf7c1de2 LPC |
327 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
328 | { | |
329 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
330 | ||
331 | return data->value; | |
332 | } | |
333 | ||
334 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
335 | unsigned int value) | |
336 | { | |
337 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
338 | ||
339 | if (data->value == value) | |
340 | return false; | |
341 | ||
57295073 LPC |
342 | if (data->widget) |
343 | data->widget->on_val = value; | |
344 | ||
cf7c1de2 LPC |
345 | data->value = value; |
346 | ||
347 | return true; | |
348 | } | |
349 | ||
eee5d7f9 LPC |
350 | /** |
351 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
352 | * @kcontrol: The kcontrol | |
353 | */ | |
354 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
355 | { | |
e84357f7 | 356 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
357 | } |
358 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
359 | ||
6c120e19 LG |
360 | static void dapm_reset(struct snd_soc_card *card) |
361 | { | |
362 | struct snd_soc_dapm_widget *w; | |
363 | ||
364 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
365 | ||
366 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 367 | w->new_power = w->power; |
6c120e19 LG |
368 | w->power_checked = false; |
369 | w->inputs = -1; | |
370 | w->outputs = -1; | |
371 | } | |
372 | } | |
373 | ||
f7d3c170 ASL |
374 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg, |
375 | unsigned int *value) | |
0445bdf4 | 376 | { |
f7d3c170 ASL |
377 | if (w->codec) { |
378 | *value = snd_soc_read(w->codec, reg); | |
379 | return 0; | |
380 | } else if (w->platform) { | |
381 | *value = snd_soc_platform_read(w->platform, reg); | |
382 | return 0; | |
383 | } | |
b7950641 | 384 | |
30a6a1a4 | 385 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 386 | return -1; |
0445bdf4 LG |
387 | } |
388 | ||
389 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
390 | { | |
391 | if (w->codec) | |
392 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
393 | else if (w->platform) |
394 | return snd_soc_platform_write(w->platform, reg, val); | |
395 | ||
30a6a1a4 | 396 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 397 | return -1; |
0445bdf4 LG |
398 | } |
399 | ||
49575fb5 LG |
400 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
401 | { | |
e06ab3b8 | 402 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
403 | mutex_lock(&w->codec->mutex); |
404 | else if (w->platform) | |
405 | mutex_lock(&w->platform->mutex); | |
406 | } | |
407 | ||
408 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
409 | { | |
e06ab3b8 | 410 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
411 | mutex_unlock(&w->codec->mutex); |
412 | else if (w->platform) | |
413 | mutex_unlock(&w->platform->mutex); | |
414 | } | |
415 | ||
eb270e98 MB |
416 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
417 | { | |
418 | if (dapm->codec && dapm->codec->using_regmap) | |
419 | regmap_async_complete(dapm->codec->control_data); | |
420 | } | |
421 | ||
49575fb5 | 422 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, |
0445bdf4 LG |
423 | unsigned short reg, unsigned int mask, unsigned int value) |
424 | { | |
8a713da8 | 425 | bool change; |
0445bdf4 LG |
426 | unsigned int old, new; |
427 | int ret; | |
428 | ||
8a713da8 | 429 | if (w->codec && w->codec->using_regmap) { |
eb270e98 MB |
430 | ret = regmap_update_bits_check_async(w->codec->control_data, |
431 | reg, mask, value, | |
432 | &change); | |
8a713da8 MB |
433 | if (ret != 0) |
434 | return ret; | |
435 | } else { | |
49575fb5 | 436 | soc_widget_lock(w); |
f7d3c170 | 437 | ret = soc_widget_read(w, reg, &old); |
49575fb5 LG |
438 | if (ret < 0) { |
439 | soc_widget_unlock(w); | |
0445bdf4 | 440 | return ret; |
49575fb5 | 441 | } |
8a713da8 | 442 | |
8a713da8 MB |
443 | new = (old & ~mask) | (value & mask); |
444 | change = old != new; | |
445 | if (change) { | |
446 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
447 | if (ret < 0) { |
448 | soc_widget_unlock(w); | |
8a713da8 | 449 | return ret; |
49575fb5 | 450 | } |
8a713da8 | 451 | } |
49575fb5 | 452 | soc_widget_unlock(w); |
0445bdf4 LG |
453 | } |
454 | ||
455 | return change; | |
456 | } | |
457 | ||
452c5eaa MB |
458 | /** |
459 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 460 | * @dapm: DAPM context |
452c5eaa MB |
461 | * @level: level to configure |
462 | * | |
463 | * Configure the bias (power) levels for the SoC audio device. | |
464 | * | |
465 | * Returns 0 for success else error. | |
466 | */ | |
ed5a4c47 | 467 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 468 | enum snd_soc_bias_level level) |
452c5eaa | 469 | { |
ed5a4c47 | 470 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
471 | int ret = 0; |
472 | ||
84e90930 MB |
473 | trace_snd_soc_bias_level_start(card, level); |
474 | ||
f0fba2ad | 475 | if (card && card->set_bias_level) |
d4c6005f | 476 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
477 | if (ret != 0) |
478 | goto out; | |
479 | ||
cc4c670a MB |
480 | if (dapm->codec) { |
481 | if (dapm->codec->driver->set_bias_level) | |
482 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
483 | level); | |
d8c3bb91 MB |
484 | else |
485 | dapm->bias_level = level; | |
4e872a46 | 486 | } else if (!card || dapm != &card->dapm) { |
4123128e | 487 | dapm->bias_level = level; |
4e872a46 | 488 | } |
4123128e | 489 | |
171ec6b0 MB |
490 | if (ret != 0) |
491 | goto out; | |
492 | ||
493 | if (card && card->set_bias_level_post) | |
d4c6005f | 494 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 495 | out: |
84e90930 MB |
496 | trace_snd_soc_bias_level_done(card, level); |
497 | ||
452c5eaa MB |
498 | return ret; |
499 | } | |
500 | ||
2b97eabc RP |
501 | /* set up initial codec paths */ |
502 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
503 | struct snd_soc_dapm_path *p, int i) | |
504 | { | |
505 | switch (w->id) { | |
506 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
507 | case snd_soc_dapm_mixer: |
508 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 509 | int val; |
4eaa9819 | 510 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 511 | w->kcontrol_news[i].private_value; |
249ce138 | 512 | int reg = mc->reg; |
815ecf8d | 513 | unsigned int shift = mc->shift; |
4eaa9819 | 514 | int max = mc->max; |
815ecf8d JS |
515 | unsigned int mask = (1 << fls(max)) - 1; |
516 | unsigned int invert = mc->invert; | |
2b97eabc | 517 | |
249ce138 | 518 | if (reg != SND_SOC_NOPM) { |
f7d3c170 | 519 | soc_widget_read(w, reg, &val); |
249ce138 LPC |
520 | val = (val >> shift) & mask; |
521 | if (invert) | |
522 | val = max - val; | |
523 | p->connect = !!val; | |
524 | } else { | |
525 | p->connect = 0; | |
526 | } | |
2b97eabc | 527 | |
2b97eabc RP |
528 | } |
529 | break; | |
530 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
531 | struct soc_enum *e = (struct soc_enum *) |
532 | w->kcontrol_news[i].private_value; | |
86767b7d | 533 | int val, item; |
2b97eabc | 534 | |
f7d3c170 | 535 | soc_widget_read(w, e->reg, &val); |
86767b7d | 536 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 537 | |
58fee775 LPC |
538 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
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; | |
2e72f8e3 | 559 | case snd_soc_dapm_value_mux: { |
74155556 | 560 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 561 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
562 | int val, item; |
563 | ||
f7d3c170 | 564 | soc_widget_read(w, e->reg, &val); |
2e72f8e3 PU |
565 | val = (val >> e->shift_l) & e->mask; |
566 | for (item = 0; item < e->max; item++) { | |
567 | if (val == e->values[item]) | |
568 | break; | |
569 | } | |
570 | ||
58fee775 LPC |
571 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
572 | p->connect = 1; | |
573 | else | |
574 | p->connect = 0; | |
2e72f8e3 PU |
575 | } |
576 | break; | |
56563100 | 577 | /* does not affect routing - always connected */ |
2b97eabc | 578 | case snd_soc_dapm_pga: |
d88429a6 | 579 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
580 | case snd_soc_dapm_output: |
581 | case snd_soc_dapm_adc: | |
582 | case snd_soc_dapm_input: | |
1ab97c8c | 583 | case snd_soc_dapm_siggen: |
2b97eabc RP |
584 | case snd_soc_dapm_dac: |
585 | case snd_soc_dapm_micbias: | |
586 | case snd_soc_dapm_vmid: | |
246d0a17 | 587 | case snd_soc_dapm_supply: |
62ea874a | 588 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 589 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
590 | case snd_soc_dapm_aif_in: |
591 | case snd_soc_dapm_aif_out: | |
4616274d MB |
592 | case snd_soc_dapm_dai_in: |
593 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
594 | case snd_soc_dapm_hp: |
595 | case snd_soc_dapm_mic: | |
596 | case snd_soc_dapm_spk: | |
597 | case snd_soc_dapm_line: | |
c74184ed | 598 | case snd_soc_dapm_dai_link: |
57295073 | 599 | case snd_soc_dapm_kcontrol: |
56563100 MB |
600 | p->connect = 1; |
601 | break; | |
602 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
603 | case snd_soc_dapm_pre: |
604 | case snd_soc_dapm_post: | |
605 | p->connect = 0; | |
606 | break; | |
607 | } | |
608 | } | |
609 | ||
74b8f955 | 610 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 611 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
612 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
613 | struct snd_soc_dapm_path *path, const char *control_name, | |
614 | const struct snd_kcontrol_new *kcontrol) | |
615 | { | |
616 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
617 | int i; | |
618 | ||
f8ba0b7b | 619 | for (i = 0; i < e->max; i++) { |
2b97eabc | 620 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 621 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
622 | list_add(&path->list_sink, &dest->sources); |
623 | list_add(&path->list_source, &src->sinks); | |
624 | path->name = (char*)e->texts[i]; | |
625 | dapm_set_path_status(dest, path, 0); | |
626 | return 0; | |
627 | } | |
628 | } | |
629 | ||
630 | return -ENODEV; | |
631 | } | |
632 | ||
74b8f955 | 633 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 634 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
635 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
636 | struct snd_soc_dapm_path *path, const char *control_name) | |
637 | { | |
638 | int i; | |
639 | ||
640 | /* search for mixer kcontrol */ | |
641 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 642 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 643 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
644 | list_add(&path->list_sink, &dest->sources); |
645 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 646 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
647 | dapm_set_path_status(dest, path, i); |
648 | return 0; | |
649 | } | |
650 | } | |
651 | return -ENODEV; | |
652 | } | |
653 | ||
af46800b | 654 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 655 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
656 | const struct snd_kcontrol_new *kcontrol_new, |
657 | struct snd_kcontrol **kcontrol) | |
658 | { | |
659 | struct snd_soc_dapm_widget *w; | |
660 | int i; | |
661 | ||
662 | *kcontrol = NULL; | |
663 | ||
664 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
665 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
666 | continue; | |
af46800b SW |
667 | for (i = 0; i < w->num_kcontrols; i++) { |
668 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
669 | if (w->kcontrols) | |
670 | *kcontrol = w->kcontrols[i]; | |
671 | return 1; | |
672 | } | |
673 | } | |
674 | } | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
85762e71 SW |
679 | /* |
680 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
681 | * create it. Either way, add the widget into the control's widget list | |
682 | */ | |
683 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 684 | int kci) |
2b97eabc | 685 | { |
4b80b8c2 | 686 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 687 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 688 | const char *prefix; |
85762e71 SW |
689 | size_t prefix_len; |
690 | int shared; | |
691 | struct snd_kcontrol *kcontrol; | |
85762e71 | 692 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
693 | char *long_name; |
694 | const char *name; | |
695 | int ret; | |
efb7ac3f MB |
696 | |
697 | if (dapm->codec) | |
698 | prefix = dapm->codec->name_prefix; | |
699 | else | |
700 | prefix = NULL; | |
2b97eabc | 701 | |
3e5ff4df MB |
702 | if (prefix) |
703 | prefix_len = strlen(prefix) + 1; | |
704 | else | |
705 | prefix_len = 0; | |
706 | ||
85762e71 SW |
707 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
708 | &kcontrol); | |
2b97eabc | 709 | |
85762e71 SW |
710 | if (!kcontrol) { |
711 | if (shared) { | |
712 | wname_in_long_name = false; | |
713 | kcname_in_long_name = true; | |
714 | } else { | |
715 | switch (w->id) { | |
716 | case snd_soc_dapm_switch: | |
717 | case snd_soc_dapm_mixer: | |
718 | wname_in_long_name = true; | |
719 | kcname_in_long_name = true; | |
720 | break; | |
721 | case snd_soc_dapm_mixer_named_ctl: | |
722 | wname_in_long_name = false; | |
723 | kcname_in_long_name = true; | |
724 | break; | |
725 | case snd_soc_dapm_mux: | |
726 | case snd_soc_dapm_virt_mux: | |
727 | case snd_soc_dapm_value_mux: | |
728 | wname_in_long_name = true; | |
729 | kcname_in_long_name = false; | |
730 | break; | |
731 | default: | |
85762e71 | 732 | return -EINVAL; |
82cd8764 | 733 | } |
85762e71 SW |
734 | } |
735 | ||
736 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
737 | /* |
738 | * The control will get a prefix from the control | |
739 | * creation process but we're also using the same | |
740 | * prefix for widgets so cut the prefix off the | |
741 | * front of the widget name. | |
ca9c1aae | 742 | */ |
2b581074 | 743 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
744 | w->name + prefix_len, |
745 | w->kcontrol_news[kci].name); | |
e84357f7 | 746 | if (long_name == NULL) |
2b581074 | 747 | return -ENOMEM; |
85762e71 SW |
748 | |
749 | name = long_name; | |
750 | } else if (wname_in_long_name) { | |
751 | long_name = NULL; | |
752 | name = w->name + prefix_len; | |
753 | } else { | |
754 | long_name = NULL; | |
755 | name = w->kcontrol_news[kci].name; | |
756 | } | |
ca9c1aae | 757 | |
e84357f7 | 758 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 759 | prefix); |
656ca9d3 | 760 | kfree(long_name); |
9356e9d5 LPC |
761 | if (!kcontrol) |
762 | return -ENOMEM; | |
763 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
764 | |
765 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
766 | if (ret) { | |
767 | snd_ctl_free_one(kcontrol); | |
768 | return ret; | |
769 | } | |
770 | ||
85762e71 SW |
771 | ret = snd_ctl_add(card, kcontrol); |
772 | if (ret < 0) { | |
773 | dev_err(dapm->dev, | |
774 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
775 | w->name, name, ret); | |
85762e71 SW |
776 | return ret; |
777 | } | |
85762e71 | 778 | } |
2b97eabc | 779 | |
2c75bdf3 LPC |
780 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
781 | if (ret) | |
782 | return ret; | |
783 | ||
85762e71 | 784 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 785 | |
85762e71 SW |
786 | return 0; |
787 | } | |
219b93f5 | 788 | |
85762e71 SW |
789 | /* create new dapm mixer control */ |
790 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
791 | { | |
792 | int i, ret; | |
793 | struct snd_soc_dapm_path *path; | |
794 | ||
795 | /* add kcontrol */ | |
796 | for (i = 0; i < w->num_kcontrols; i++) { | |
797 | /* match name */ | |
798 | list_for_each_entry(path, &w->sources, list_sink) { | |
799 | /* mixer/mux paths name must match control name */ | |
800 | if (path->name != (char *)w->kcontrol_news[i].name) | |
801 | continue; | |
802 | ||
803 | if (w->kcontrols[i]) { | |
5106b92f | 804 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 805 | continue; |
2b97eabc | 806 | } |
85762e71 | 807 | |
946d92a1 | 808 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
809 | if (ret < 0) |
810 | return ret; | |
946d92a1 MB |
811 | |
812 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
813 | } |
814 | } | |
85762e71 SW |
815 | |
816 | return 0; | |
2b97eabc RP |
817 | } |
818 | ||
819 | /* create new dapm mux control */ | |
4b80b8c2 | 820 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 821 | { |
4b80b8c2 | 822 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 823 | struct snd_soc_dapm_path *path; |
af46800b | 824 | int ret; |
2b97eabc | 825 | |
af46800b SW |
826 | if (w->num_kcontrols != 1) { |
827 | dev_err(dapm->dev, | |
30a6a1a4 | 828 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 829 | w->name); |
2b97eabc RP |
830 | return -EINVAL; |
831 | } | |
832 | ||
fe581391 | 833 | if (list_empty(&w->sources)) { |
85762e71 SW |
834 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
835 | return -EINVAL; | |
af46800b | 836 | } |
ce6120cc | 837 | |
946d92a1 | 838 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
839 | if (ret < 0) |
840 | return ret; | |
fad59888 | 841 | |
2b97eabc | 842 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 843 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 844 | |
af46800b | 845 | return 0; |
2b97eabc RP |
846 | } |
847 | ||
848 | /* create new dapm volume control */ | |
4b80b8c2 | 849 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 850 | { |
a6c65736 | 851 | if (w->num_kcontrols) |
f7d41ae8 | 852 | dev_err(w->dapm->dev, |
30a6a1a4 | 853 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 854 | |
a6c65736 | 855 | return 0; |
2b97eabc RP |
856 | } |
857 | ||
858 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
859 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
860 | struct list_head *sink) | |
2b97eabc RP |
861 | { |
862 | struct snd_soc_dapm_path *p; | |
863 | ||
1059ecfa RT |
864 | list_for_each_entry(p, sink, list_source) { |
865 | if (p->walked) { | |
866 | p->walked = 0; | |
867 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
868 | } | |
869 | } | |
2b97eabc RP |
870 | } |
871 | ||
1059ecfa RT |
872 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
873 | struct list_head *source) | |
2b97eabc RP |
874 | { |
875 | struct snd_soc_dapm_path *p; | |
876 | ||
1059ecfa RT |
877 | list_for_each_entry(p, source, list_sink) { |
878 | if (p->walked) { | |
879 | p->walked = 0; | |
880 | dapm_clear_walk_input(dapm, &p->source->sources); | |
881 | } | |
882 | } | |
2b97eabc RP |
883 | } |
884 | ||
1059ecfa | 885 | |
9949788b MB |
886 | /* We implement power down on suspend by checking the power state of |
887 | * the ALSA card - when we are suspending the ALSA state for the card | |
888 | * is set to D3. | |
889 | */ | |
890 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
891 | { | |
12ea2c78 | 892 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 893 | |
f0fba2ad | 894 | switch (level) { |
9949788b MB |
895 | case SNDRV_CTL_POWER_D3hot: |
896 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 897 | if (widget->ignore_suspend) |
30a6a1a4 | 898 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 899 | widget->name); |
1547aba9 | 900 | return widget->ignore_suspend; |
9949788b MB |
901 | default: |
902 | return 1; | |
903 | } | |
904 | } | |
905 | ||
ec2e3031 LG |
906 | /* add widget to list if it's not already in the list */ |
907 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
908 | struct snd_soc_dapm_widget *w) | |
909 | { | |
910 | struct snd_soc_dapm_widget_list *wlist; | |
911 | int wlistsize, wlistentries, i; | |
912 | ||
913 | if (*list == NULL) | |
914 | return -EINVAL; | |
915 | ||
916 | wlist = *list; | |
917 | ||
918 | /* is this widget already in the list */ | |
919 | for (i = 0; i < wlist->num_widgets; i++) { | |
920 | if (wlist->widgets[i] == w) | |
921 | return 0; | |
922 | } | |
923 | ||
924 | /* allocate some new space */ | |
925 | wlistentries = wlist->num_widgets + 1; | |
926 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
927 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
928 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
929 | if (*list == NULL) { | |
30a6a1a4 | 930 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
931 | w->name); |
932 | return -ENOMEM; | |
933 | } | |
934 | wlist = *list; | |
935 | ||
936 | /* insert the widget */ | |
30a6a1a4 | 937 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
938 | w->name, wlist->num_widgets); |
939 | ||
940 | wlist->widgets[wlist->num_widgets] = w; | |
941 | wlist->num_widgets++; | |
942 | return 1; | |
943 | } | |
944 | ||
2b97eabc RP |
945 | /* |
946 | * Recursively check for a completed path to an active or physically connected | |
947 | * output widget. Returns number of complete paths. | |
948 | */ | |
ec2e3031 LG |
949 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
950 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
951 | { |
952 | struct snd_soc_dapm_path *path; | |
953 | int con = 0; | |
954 | ||
024dc078 MB |
955 | if (widget->outputs >= 0) |
956 | return widget->outputs; | |
957 | ||
de02d078 MB |
958 | DAPM_UPDATE_STAT(widget, path_checks); |
959 | ||
62ea874a MB |
960 | switch (widget->id) { |
961 | case snd_soc_dapm_supply: | |
962 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 963 | case snd_soc_dapm_clock_supply: |
57295073 | 964 | case snd_soc_dapm_kcontrol: |
246d0a17 | 965 | return 0; |
62ea874a MB |
966 | default: |
967 | break; | |
968 | } | |
246d0a17 | 969 | |
010ff262 MB |
970 | switch (widget->id) { |
971 | case snd_soc_dapm_adc: | |
972 | case snd_soc_dapm_aif_out: | |
4616274d | 973 | case snd_soc_dapm_dai_out: |
024dc078 MB |
974 | if (widget->active) { |
975 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
976 | return widget->outputs; | |
977 | } | |
010ff262 MB |
978 | default: |
979 | break; | |
980 | } | |
2b97eabc RP |
981 | |
982 | if (widget->connected) { | |
983 | /* connected pin ? */ | |
024dc078 MB |
984 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
985 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
986 | return widget->outputs; | |
987 | } | |
2b97eabc RP |
988 | |
989 | /* connected jack or spk ? */ | |
024dc078 MB |
990 | if (widget->id == snd_soc_dapm_hp || |
991 | widget->id == snd_soc_dapm_spk || | |
992 | (widget->id == snd_soc_dapm_line && | |
993 | !list_empty(&widget->sources))) { | |
994 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
995 | return widget->outputs; | |
996 | } | |
2b97eabc RP |
997 | } |
998 | ||
999 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
1000 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1001 | ||
bf3a9e13 MB |
1002 | if (path->weak) |
1003 | continue; | |
1004 | ||
8af294b4 MB |
1005 | if (path->walking) |
1006 | return 1; | |
1007 | ||
2b97eabc RP |
1008 | if (path->walked) |
1009 | continue; | |
1010 | ||
ec2e3031 LG |
1011 | trace_snd_soc_dapm_output_path(widget, path); |
1012 | ||
2b97eabc RP |
1013 | if (path->sink && path->connect) { |
1014 | path->walked = 1; | |
8af294b4 | 1015 | path->walking = 1; |
ec2e3031 LG |
1016 | |
1017 | /* do we need to add this widget to the list ? */ | |
1018 | if (list) { | |
1019 | int err; | |
1020 | err = dapm_list_add_widget(list, path->sink); | |
1021 | if (err < 0) { | |
30a6a1a4 LG |
1022 | dev_err(widget->dapm->dev, |
1023 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1024 | widget->name); |
8af294b4 | 1025 | path->walking = 0; |
ec2e3031 LG |
1026 | return con; |
1027 | } | |
1028 | } | |
1029 | ||
1030 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1031 | |
1032 | path->walking = 0; | |
2b97eabc RP |
1033 | } |
1034 | } | |
1035 | ||
024dc078 MB |
1036 | widget->outputs = con; |
1037 | ||
2b97eabc RP |
1038 | return con; |
1039 | } | |
1040 | ||
1041 | /* | |
1042 | * Recursively check for a completed path to an active or physically connected | |
1043 | * input widget. Returns number of complete paths. | |
1044 | */ | |
ec2e3031 LG |
1045 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1046 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1047 | { |
1048 | struct snd_soc_dapm_path *path; | |
1049 | int con = 0; | |
1050 | ||
024dc078 MB |
1051 | if (widget->inputs >= 0) |
1052 | return widget->inputs; | |
1053 | ||
de02d078 MB |
1054 | DAPM_UPDATE_STAT(widget, path_checks); |
1055 | ||
62ea874a MB |
1056 | switch (widget->id) { |
1057 | case snd_soc_dapm_supply: | |
1058 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 1059 | case snd_soc_dapm_clock_supply: |
57295073 | 1060 | case snd_soc_dapm_kcontrol: |
246d0a17 | 1061 | return 0; |
62ea874a MB |
1062 | default: |
1063 | break; | |
1064 | } | |
246d0a17 | 1065 | |
2b97eabc | 1066 | /* active stream ? */ |
010ff262 MB |
1067 | switch (widget->id) { |
1068 | case snd_soc_dapm_dac: | |
1069 | case snd_soc_dapm_aif_in: | |
4616274d | 1070 | case snd_soc_dapm_dai_in: |
024dc078 MB |
1071 | if (widget->active) { |
1072 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1073 | return widget->inputs; | |
1074 | } | |
010ff262 MB |
1075 | default: |
1076 | break; | |
1077 | } | |
2b97eabc RP |
1078 | |
1079 | if (widget->connected) { | |
1080 | /* connected pin ? */ | |
024dc078 MB |
1081 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
1082 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1083 | return widget->inputs; | |
1084 | } | |
2b97eabc RP |
1085 | |
1086 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
1087 | if (widget->id == snd_soc_dapm_vmid) { |
1088 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1089 | return widget->inputs; | |
1090 | } | |
2b97eabc RP |
1091 | |
1092 | /* connected jack ? */ | |
eaeae5d9 | 1093 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1094 | (widget->id == snd_soc_dapm_line && |
1095 | !list_empty(&widget->sinks))) { | |
1096 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1097 | return widget->inputs; | |
1098 | } | |
1099 | ||
1ab97c8c MB |
1100 | /* signal generator */ |
1101 | if (widget->id == snd_soc_dapm_siggen) { | |
1102 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1103 | return widget->inputs; | |
1104 | } | |
2b97eabc RP |
1105 | } |
1106 | ||
1107 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1108 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1109 | ||
bf3a9e13 MB |
1110 | if (path->weak) |
1111 | continue; | |
1112 | ||
8af294b4 MB |
1113 | if (path->walking) |
1114 | return 1; | |
1115 | ||
2b97eabc RP |
1116 | if (path->walked) |
1117 | continue; | |
1118 | ||
ec2e3031 LG |
1119 | trace_snd_soc_dapm_input_path(widget, path); |
1120 | ||
2b97eabc RP |
1121 | if (path->source && path->connect) { |
1122 | path->walked = 1; | |
8af294b4 | 1123 | path->walking = 1; |
ec2e3031 LG |
1124 | |
1125 | /* do we need to add this widget to the list ? */ | |
1126 | if (list) { | |
1127 | int err; | |
90c6ce0d | 1128 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1129 | if (err < 0) { |
30a6a1a4 LG |
1130 | dev_err(widget->dapm->dev, |
1131 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1132 | widget->name); |
8af294b4 | 1133 | path->walking = 0; |
ec2e3031 LG |
1134 | return con; |
1135 | } | |
1136 | } | |
1137 | ||
1138 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1139 | |
1140 | path->walking = 0; | |
2b97eabc RP |
1141 | } |
1142 | } | |
1143 | ||
024dc078 MB |
1144 | widget->inputs = con; |
1145 | ||
2b97eabc RP |
1146 | return con; |
1147 | } | |
1148 | ||
ec2e3031 LG |
1149 | /** |
1150 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1151 | * @dai: the soc DAI. | |
1152 | * @stream: stream direction. | |
1153 | * @list: list of active widgets for this stream. | |
1154 | * | |
1155 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1156 | * the initial stream specified by name. This takes into account | |
1157 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1158 | * | |
1159 | * Returns the number of valid paths or negative error. | |
1160 | */ | |
1161 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1162 | struct snd_soc_dapm_widget_list **list) | |
1163 | { | |
1164 | struct snd_soc_card *card = dai->card; | |
1165 | int paths; | |
1166 | ||
1167 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1168 | dapm_reset(card); | |
1169 | ||
1059ecfa | 1170 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1171 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1172 | dapm_clear_walk_output(&card->dapm, |
1173 | &dai->playback_widget->sinks); | |
1174 | } else { | |
d298caae | 1175 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1176 | dapm_clear_walk_input(&card->dapm, |
1177 | &dai->capture_widget->sources); | |
1178 | } | |
ec2e3031 LG |
1179 | |
1180 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1181 | mutex_unlock(&card->dapm_mutex); |
1182 | ||
1183 | return paths; | |
1184 | } | |
1185 | ||
e2be2ccf JN |
1186 | /* |
1187 | * Handler for generic register modifier widget. | |
1188 | */ | |
1189 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1190 | struct snd_kcontrol *kcontrol, int event) | |
1191 | { | |
1192 | unsigned int val; | |
1193 | ||
1194 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1195 | val = w->on_val; | |
1196 | else | |
1197 | val = w->off_val; | |
1198 | ||
49575fb5 | 1199 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1200 | w->mask << w->shift, val << w->shift); |
1201 | ||
1202 | return 0; | |
1203 | } | |
11589418 | 1204 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1205 | |
62ea874a MB |
1206 | /* |
1207 | * Handler for regulator supply widget. | |
1208 | */ | |
1209 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1210 | struct snd_kcontrol *kcontrol, int event) | |
1211 | { | |
c05b84d1 MB |
1212 | int ret; |
1213 | ||
eb270e98 MB |
1214 | soc_dapm_async_complete(w->dapm); |
1215 | ||
c05b84d1 | 1216 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1217 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1218 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1219 | if (ret != 0) |
1220 | dev_warn(w->dapm->dev, | |
30686c35 | 1221 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1222 | w->name, ret); |
1223 | } | |
1224 | ||
a3cc056b | 1225 | return regulator_enable(w->regulator); |
c05b84d1 | 1226 | } else { |
de9ba98b | 1227 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1228 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1229 | if (ret != 0) |
1230 | dev_warn(w->dapm->dev, | |
30686c35 | 1231 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1232 | w->name, ret); |
1233 | } | |
1234 | ||
a3cc056b | 1235 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1236 | } |
62ea874a MB |
1237 | } |
1238 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1239 | ||
d7e7eb91 OL |
1240 | /* |
1241 | * Handler for clock supply widget. | |
1242 | */ | |
1243 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1244 | struct snd_kcontrol *kcontrol, int event) | |
1245 | { | |
1246 | if (!w->clk) | |
1247 | return -EIO; | |
1248 | ||
eb270e98 MB |
1249 | soc_dapm_async_complete(w->dapm); |
1250 | ||
ec02995a | 1251 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1252 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1253 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1254 | } else { |
37c1b927 | 1255 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1256 | return 0; |
1257 | } | |
ec02995a | 1258 | #endif |
98b3cf12 | 1259 | return 0; |
d7e7eb91 OL |
1260 | } |
1261 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1262 | ||
d805002b MB |
1263 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1264 | { | |
9b8a83b2 MB |
1265 | if (w->power_checked) |
1266 | return w->new_power; | |
1267 | ||
d805002b | 1268 | if (w->force) |
9b8a83b2 | 1269 | w->new_power = 1; |
d805002b | 1270 | else |
9b8a83b2 MB |
1271 | w->new_power = w->power_check(w); |
1272 | ||
1273 | w->power_checked = true; | |
1274 | ||
1275 | return w->new_power; | |
d805002b MB |
1276 | } |
1277 | ||
cd0f2d47 MB |
1278 | /* Generic check to see if a widget should be powered. |
1279 | */ | |
1280 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1281 | { | |
1282 | int in, out; | |
1283 | ||
de02d078 MB |
1284 | DAPM_UPDATE_STAT(w, power_checks); |
1285 | ||
ec2e3031 | 1286 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1287 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1288 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1289 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1290 | return out != 0 && in != 0; |
1291 | } | |
1292 | ||
6ea31b9f MB |
1293 | /* Check to see if an ADC has power */ |
1294 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1295 | { | |
1296 | int in; | |
1297 | ||
de02d078 MB |
1298 | DAPM_UPDATE_STAT(w, power_checks); |
1299 | ||
6ea31b9f | 1300 | if (w->active) { |
ec2e3031 | 1301 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1302 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1303 | return in != 0; |
1304 | } else { | |
1305 | return dapm_generic_check_power(w); | |
1306 | } | |
1307 | } | |
1308 | ||
1309 | /* Check to see if a DAC has power */ | |
1310 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1311 | { | |
1312 | int out; | |
1313 | ||
de02d078 MB |
1314 | DAPM_UPDATE_STAT(w, power_checks); |
1315 | ||
6ea31b9f | 1316 | if (w->active) { |
ec2e3031 | 1317 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1318 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1319 | return out != 0; |
1320 | } else { | |
1321 | return dapm_generic_check_power(w); | |
1322 | } | |
1323 | } | |
1324 | ||
246d0a17 MB |
1325 | /* Check to see if a power supply is needed */ |
1326 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1327 | { | |
1328 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1329 | |
de02d078 MB |
1330 | DAPM_UPDATE_STAT(w, power_checks); |
1331 | ||
246d0a17 MB |
1332 | /* Check if one of our outputs is connected */ |
1333 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1334 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1335 | ||
bf3a9e13 MB |
1336 | if (path->weak) |
1337 | continue; | |
1338 | ||
215edda3 MB |
1339 | if (path->connected && |
1340 | !path->connected(path->source, path->sink)) | |
1341 | continue; | |
1342 | ||
3017358a MB |
1343 | if (!path->sink) |
1344 | continue; | |
1345 | ||
f68d7e16 MB |
1346 | if (dapm_widget_power_check(path->sink)) |
1347 | return 1; | |
246d0a17 MB |
1348 | } |
1349 | ||
f68d7e16 | 1350 | return 0; |
246d0a17 MB |
1351 | } |
1352 | ||
35c64bca MB |
1353 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1354 | { | |
1355 | return 1; | |
1356 | } | |
1357 | ||
38357ab2 MB |
1358 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1359 | struct snd_soc_dapm_widget *b, | |
828a842f | 1360 | bool power_up) |
42aa3418 | 1361 | { |
828a842f MB |
1362 | int *sort; |
1363 | ||
1364 | if (power_up) | |
1365 | sort = dapm_up_seq; | |
1366 | else | |
1367 | sort = dapm_down_seq; | |
1368 | ||
38357ab2 MB |
1369 | if (sort[a->id] != sort[b->id]) |
1370 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1371 | if (a->subseq != b->subseq) { |
1372 | if (power_up) | |
1373 | return a->subseq - b->subseq; | |
1374 | else | |
1375 | return b->subseq - a->subseq; | |
1376 | } | |
b22ead2a MB |
1377 | if (a->reg != b->reg) |
1378 | return a->reg - b->reg; | |
84dab567 MB |
1379 | if (a->dapm != b->dapm) |
1380 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1381 | |
38357ab2 MB |
1382 | return 0; |
1383 | } | |
42aa3418 | 1384 | |
38357ab2 MB |
1385 | /* Insert a widget in order into a DAPM power sequence. */ |
1386 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1387 | struct list_head *list, | |
828a842f | 1388 | bool power_up) |
38357ab2 MB |
1389 | { |
1390 | struct snd_soc_dapm_widget *w; | |
1391 | ||
1392 | list_for_each_entry(w, list, power_list) | |
828a842f | 1393 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1394 | list_add_tail(&new_widget->power_list, &w->power_list); |
1395 | return; | |
1396 | } | |
1397 | ||
1398 | list_add_tail(&new_widget->power_list, list); | |
1399 | } | |
1400 | ||
95dd5cd6 | 1401 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1402 | struct snd_soc_dapm_widget *w, int event) |
1403 | { | |
68f89ad8 MB |
1404 | const char *ev_name; |
1405 | int power, ret; | |
1406 | ||
1407 | switch (event) { | |
1408 | case SND_SOC_DAPM_PRE_PMU: | |
1409 | ev_name = "PRE_PMU"; | |
1410 | power = 1; | |
1411 | break; | |
1412 | case SND_SOC_DAPM_POST_PMU: | |
1413 | ev_name = "POST_PMU"; | |
1414 | power = 1; | |
1415 | break; | |
1416 | case SND_SOC_DAPM_PRE_PMD: | |
1417 | ev_name = "PRE_PMD"; | |
1418 | power = 0; | |
1419 | break; | |
1420 | case SND_SOC_DAPM_POST_PMD: | |
1421 | ev_name = "POST_PMD"; | |
1422 | power = 0; | |
1423 | break; | |
80114129 MB |
1424 | case SND_SOC_DAPM_WILL_PMU: |
1425 | ev_name = "WILL_PMU"; | |
1426 | power = 1; | |
1427 | break; | |
1428 | case SND_SOC_DAPM_WILL_PMD: | |
1429 | ev_name = "WILL_PMD"; | |
1430 | power = 0; | |
1431 | break; | |
68f89ad8 | 1432 | default: |
a6ed0608 | 1433 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1434 | return; |
1435 | } | |
1436 | ||
39eb5fd1 | 1437 | if (w->new_power != power) |
68f89ad8 MB |
1438 | return; |
1439 | ||
1440 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1441 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1442 | w->name, ev_name); |
eb270e98 | 1443 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1444 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1445 | ret = w->event(w, NULL, event); |
84e90930 | 1446 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1447 | if (ret < 0) |
95dd5cd6 | 1448 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1449 | ev_name, w->name, ret); |
1450 | } | |
1451 | } | |
1452 | ||
b22ead2a | 1453 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1454 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1455 | struct list_head *pending) |
163cac06 | 1456 | { |
68f89ad8 | 1457 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1458 | int reg; |
b22ead2a MB |
1459 | unsigned int value = 0; |
1460 | unsigned int mask = 0; | |
b22ead2a MB |
1461 | |
1462 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1463 | power_list)->reg; | |
1464 | ||
1465 | list_for_each_entry(w, pending, power_list) { | |
bf4edea8 | 1466 | WARN_ON(reg != w->reg); |
39eb5fd1 | 1467 | w->power = w->new_power; |
b22ead2a | 1468 | |
de9ba98b LPC |
1469 | mask |= w->mask << w->shift; |
1470 | if (w->power) | |
1471 | value |= w->on_val << w->shift; | |
b22ead2a | 1472 | else |
de9ba98b | 1473 | value |= w->off_val << w->shift; |
b22ead2a | 1474 | |
95dd5cd6 | 1475 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1476 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1477 | w->name, reg, value, mask); | |
81628103 | 1478 | |
68f89ad8 | 1479 | /* Check for events */ |
95dd5cd6 LPC |
1480 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1481 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1482 | } |
1483 | ||
1484 | if (reg >= 0) { | |
29376bc7 MB |
1485 | /* Any widget will do, they should all be updating the |
1486 | * same register. | |
1487 | */ | |
1488 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1489 | power_list); | |
1490 | ||
95dd5cd6 | 1491 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1492 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1493 | value, mask, reg, card->pop_time); |
1494 | pop_wait(card->pop_time); | |
49575fb5 | 1495 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1496 | } |
1497 | ||
81628103 | 1498 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1499 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1500 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1501 | } |
b22ead2a | 1502 | } |
42aa3418 | 1503 | |
b22ead2a MB |
1504 | /* Apply a DAPM power sequence. |
1505 | * | |
1506 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1507 | * order to minimise the number of writes to the device required | |
1508 | * multiple widgets will be updated in a single write where possible. | |
1509 | * Currently anything that requires more than a single write is not | |
1510 | * handled. | |
1511 | */ | |
95dd5cd6 LPC |
1512 | static void dapm_seq_run(struct snd_soc_card *card, |
1513 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1514 | { |
1515 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1516 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1517 | LIST_HEAD(pending); |
1518 | int cur_sort = -1; | |
20e4859d | 1519 | int cur_subseq = -1; |
b22ead2a | 1520 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1521 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1522 | int ret, i; |
828a842f MB |
1523 | int *sort; |
1524 | ||
1525 | if (power_up) | |
1526 | sort = dapm_up_seq; | |
1527 | else | |
1528 | sort = dapm_down_seq; | |
163cac06 | 1529 | |
b22ead2a MB |
1530 | list_for_each_entry_safe(w, n, list, power_list) { |
1531 | ret = 0; | |
1532 | ||
1533 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1534 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1535 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1536 | if (!list_empty(&pending)) |
95dd5cd6 | 1537 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1538 | |
474b62d6 MB |
1539 | if (cur_dapm && cur_dapm->seq_notifier) { |
1540 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1541 | if (sort[i] == cur_sort) | |
1542 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1543 | i, |
1544 | cur_subseq); | |
474b62d6 MB |
1545 | } |
1546 | ||
eb270e98 MB |
1547 | if (cur_dapm && w->dapm != cur_dapm) |
1548 | soc_dapm_async_complete(cur_dapm); | |
1549 | ||
b22ead2a MB |
1550 | INIT_LIST_HEAD(&pending); |
1551 | cur_sort = -1; | |
b0b3e6f8 | 1552 | cur_subseq = INT_MIN; |
b22ead2a | 1553 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1554 | cur_dapm = NULL; |
b22ead2a MB |
1555 | } |
1556 | ||
163cac06 MB |
1557 | switch (w->id) { |
1558 | case snd_soc_dapm_pre: | |
1559 | if (!w->event) | |
b22ead2a MB |
1560 | list_for_each_entry_safe_continue(w, n, list, |
1561 | power_list); | |
163cac06 | 1562 | |
b22ead2a | 1563 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1564 | ret = w->event(w, |
1565 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1566 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1567 | ret = w->event(w, |
1568 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1569 | break; |
1570 | ||
1571 | case snd_soc_dapm_post: | |
1572 | if (!w->event) | |
b22ead2a MB |
1573 | list_for_each_entry_safe_continue(w, n, list, |
1574 | power_list); | |
163cac06 | 1575 | |
b22ead2a | 1576 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1577 | ret = w->event(w, |
1578 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1579 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1580 | ret = w->event(w, |
1581 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1582 | break; |
1583 | ||
b22ead2a | 1584 | default: |
81628103 MB |
1585 | /* Queue it up for application */ |
1586 | cur_sort = sort[w->id]; | |
20e4859d | 1587 | cur_subseq = w->subseq; |
81628103 | 1588 | cur_reg = w->reg; |
7be31be8 | 1589 | cur_dapm = w->dapm; |
81628103 MB |
1590 | list_move(&w->power_list, &pending); |
1591 | break; | |
163cac06 | 1592 | } |
b22ead2a MB |
1593 | |
1594 | if (ret < 0) | |
f7d41ae8 | 1595 | dev_err(w->dapm->dev, |
30a6a1a4 | 1596 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1597 | } |
b22ead2a MB |
1598 | |
1599 | if (!list_empty(&pending)) | |
95dd5cd6 | 1600 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1601 | |
1602 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1603 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1604 | if (sort[i] == cur_sort) | |
1605 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1606 | i, cur_subseq); |
474b62d6 | 1607 | } |
eb270e98 MB |
1608 | |
1609 | list_for_each_entry(d, &card->dapm_list, list) { | |
1610 | soc_dapm_async_complete(d); | |
1611 | } | |
42aa3418 MB |
1612 | } |
1613 | ||
95dd5cd6 | 1614 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1615 | { |
95dd5cd6 | 1616 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1617 | struct snd_soc_dapm_widget_list *wlist; |
1618 | struct snd_soc_dapm_widget *w = NULL; | |
1619 | unsigned int wi; | |
97404f2e MB |
1620 | int ret; |
1621 | ||
57295073 | 1622 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1623 | return; |
1624 | ||
e84357f7 | 1625 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1626 | |
ce6cfaf1 LPC |
1627 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1628 | w = wlist->widgets[wi]; | |
1629 | ||
1630 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1631 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1632 | if (ret != 0) | |
95dd5cd6 | 1633 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1634 | w->name, ret); |
1635 | } | |
97404f2e MB |
1636 | } |
1637 | ||
ce6cfaf1 LPC |
1638 | if (!w) |
1639 | return; | |
1640 | ||
49575fb5 | 1641 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1642 | update->val); |
1643 | if (ret < 0) | |
95dd5cd6 | 1644 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1645 | w->name, ret); |
97404f2e | 1646 | |
ce6cfaf1 LPC |
1647 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1648 | w = wlist->widgets[wi]; | |
1649 | ||
1650 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1651 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1652 | if (ret != 0) | |
95dd5cd6 | 1653 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1654 | w->name, ret); |
1655 | } | |
97404f2e MB |
1656 | } |
1657 | } | |
1658 | ||
9d0624a7 MB |
1659 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1660 | * they're changing state. | |
1661 | */ | |
1662 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1663 | { | |
1664 | struct snd_soc_dapm_context *d = data; | |
1665 | int ret; | |
1666 | ||
56fba41f MB |
1667 | /* If we're off and we're not supposed to be go into STANDBY */ |
1668 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1669 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1670 | if (d->dev) |
1671 | pm_runtime_get_sync(d->dev); | |
1672 | ||
9d0624a7 MB |
1673 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1674 | if (ret != 0) | |
1675 | dev_err(d->dev, | |
30a6a1a4 | 1676 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1677 | } |
1678 | ||
56fba41f MB |
1679 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1680 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1681 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1682 | if (ret != 0) | |
1683 | dev_err(d->dev, | |
30a6a1a4 | 1684 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1685 | } |
1686 | } | |
1687 | ||
1688 | /* Async callback run prior to DAPM sequences - brings to their final | |
1689 | * state. | |
1690 | */ | |
1691 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1692 | { | |
1693 | struct snd_soc_dapm_context *d = data; | |
1694 | int ret; | |
1695 | ||
1696 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1697 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1698 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1699 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1700 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1701 | if (ret != 0) | |
30a6a1a4 | 1702 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1703 | ret); |
1704 | } | |
97404f2e | 1705 | |
9d0624a7 | 1706 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1707 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1708 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1709 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1710 | if (ret != 0) | |
30a6a1a4 LG |
1711 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1712 | ret); | |
f1aac484 MB |
1713 | |
1714 | if (d->dev) | |
fb644e9c | 1715 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1716 | } |
1717 | ||
1718 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1719 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1720 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1721 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1722 | if (ret != 0) | |
30a6a1a4 | 1723 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1724 | ret); |
1725 | } | |
1726 | } | |
97404f2e | 1727 | |
fe4fda5d MB |
1728 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1729 | bool power, bool connect) | |
1730 | { | |
1731 | /* If a connection is being made or broken then that update | |
1732 | * will have marked the peer dirty, otherwise the widgets are | |
1733 | * not connected and this update has no impact. */ | |
1734 | if (!connect) | |
1735 | return; | |
1736 | ||
1737 | /* If the peer is already in the state we're moving to then we | |
1738 | * won't have an impact on it. */ | |
1739 | if (power != peer->power) | |
75c1f891 | 1740 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1741 | } |
1742 | ||
05623c43 MB |
1743 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1744 | struct list_head *up_list, | |
1745 | struct list_head *down_list) | |
1746 | { | |
db432b41 MB |
1747 | struct snd_soc_dapm_path *path; |
1748 | ||
05623c43 MB |
1749 | if (w->power == power) |
1750 | return; | |
1751 | ||
1752 | trace_snd_soc_dapm_widget_power(w, power); | |
1753 | ||
db432b41 | 1754 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1755 | * also. |
db432b41 MB |
1756 | */ |
1757 | list_for_each_entry(path, &w->sources, list_sink) { | |
1758 | if (path->source) { | |
fe4fda5d MB |
1759 | dapm_widget_set_peer_power(path->source, power, |
1760 | path->connect); | |
db432b41 MB |
1761 | } |
1762 | } | |
f3bf3e45 MB |
1763 | switch (w->id) { |
1764 | case snd_soc_dapm_supply: | |
62ea874a | 1765 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1766 | case snd_soc_dapm_clock_supply: |
57295073 | 1767 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1768 | /* Supplies can't affect their outputs, only their inputs */ |
1769 | break; | |
1770 | default: | |
1771 | list_for_each_entry(path, &w->sinks, list_source) { | |
1772 | if (path->sink) { | |
1773 | dapm_widget_set_peer_power(path->sink, power, | |
1774 | path->connect); | |
1775 | } | |
db432b41 | 1776 | } |
f3bf3e45 | 1777 | break; |
db432b41 MB |
1778 | } |
1779 | ||
05623c43 MB |
1780 | if (power) |
1781 | dapm_seq_insert(w, up_list, true); | |
1782 | else | |
1783 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1784 | } |
1785 | ||
7c81beb0 MB |
1786 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1787 | struct list_head *up_list, | |
1788 | struct list_head *down_list) | |
1789 | { | |
7c81beb0 MB |
1790 | int power; |
1791 | ||
1792 | switch (w->id) { | |
1793 | case snd_soc_dapm_pre: | |
1794 | dapm_seq_insert(w, down_list, false); | |
1795 | break; | |
1796 | case snd_soc_dapm_post: | |
1797 | dapm_seq_insert(w, up_list, true); | |
1798 | break; | |
1799 | ||
1800 | default: | |
d805002b | 1801 | power = dapm_widget_power_check(w); |
7c81beb0 | 1802 | |
05623c43 | 1803 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1804 | break; |
1805 | } | |
1806 | } | |
1807 | ||
2b97eabc RP |
1808 | /* |
1809 | * Scan each dapm widget for complete audio path. | |
1810 | * A complete path is a route that has valid endpoints i.e.:- | |
1811 | * | |
1812 | * o DAC to output pin. | |
1813 | * o Input Pin to ADC. | |
1814 | * o Input pin to Output pin (bypass, sidetone) | |
1815 | * o DAC to ADC (loopback). | |
1816 | */ | |
95dd5cd6 | 1817 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1818 | { |
1819 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1820 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1821 | LIST_HEAD(up_list); |
1822 | LIST_HEAD(down_list); | |
2955b47d | 1823 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1824 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1825 | |
84e90930 MB |
1826 | trace_snd_soc_dapm_start(card); |
1827 | ||
56fba41f | 1828 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1829 | if (d->idle_bias_off) |
1830 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1831 | else | |
1832 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1833 | } |
7be31be8 | 1834 | |
6c120e19 | 1835 | dapm_reset(card); |
9b8a83b2 | 1836 | |
6d3ddc81 | 1837 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1838 | * lists indicating if they should be powered up or down. We |
1839 | * only check widgets that have been flagged as dirty but note | |
1840 | * that new widgets may be added to the dirty list while we | |
1841 | * iterate. | |
6d3ddc81 | 1842 | */ |
db432b41 | 1843 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1844 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1845 | } |
1846 | ||
f9de6d74 | 1847 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1848 | switch (w->id) { |
1849 | case snd_soc_dapm_pre: | |
1850 | case snd_soc_dapm_post: | |
1851 | /* These widgets always need to be powered */ | |
1852 | break; | |
1853 | default: | |
1854 | list_del_init(&w->dirty); | |
1855 | break; | |
1856 | } | |
db432b41 | 1857 | |
39eb5fd1 | 1858 | if (w->new_power) { |
f9de6d74 MB |
1859 | d = w->dapm; |
1860 | ||
1861 | /* Supplies and micbiases only bring the | |
1862 | * context up to STANDBY as unless something | |
1863 | * else is active and passing audio they | |
afe62367 MB |
1864 | * generally don't require full power. Signal |
1865 | * generators are virtual pins and have no | |
1866 | * power impact themselves. | |
f9de6d74 MB |
1867 | */ |
1868 | switch (w->id) { | |
afe62367 | 1869 | case snd_soc_dapm_siggen: |
da83fea6 | 1870 | case snd_soc_dapm_vmid: |
afe62367 | 1871 | break; |
f9de6d74 | 1872 | case snd_soc_dapm_supply: |
62ea874a | 1873 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1874 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1875 | case snd_soc_dapm_micbias: |
1876 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1877 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1878 | break; | |
1879 | default: | |
1880 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1881 | break; | |
1882 | } | |
1883 | } | |
1884 | ||
1885 | } | |
1886 | ||
85a843c5 MB |
1887 | /* Force all contexts in the card to the same bias state if |
1888 | * they're not ground referenced. | |
1889 | */ | |
56fba41f | 1890 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1891 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1892 | if (d->target_bias_level > bias) |
1893 | bias = d->target_bias_level; | |
52ba67bf | 1894 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1895 | if (!d->idle_bias_off) |
1896 | d->target_bias_level = bias; | |
52ba67bf | 1897 | |
de02d078 | 1898 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1899 | |
9d0624a7 | 1900 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1901 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1902 | async_schedule_domain(dapm_pre_sequence_async, d, |
1903 | &async_domain); | |
1904 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1905 | |
cf1f7c6e | 1906 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1907 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1908 | } |
1909 | ||
cf1f7c6e | 1910 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1911 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1912 | } |
1913 | ||
6d3ddc81 | 1914 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1915 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1916 | |
95dd5cd6 | 1917 | dapm_widget_update(card); |
97404f2e | 1918 | |
6d3ddc81 | 1919 | /* Now power up. */ |
95dd5cd6 | 1920 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1921 | |
9d0624a7 | 1922 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1923 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1924 | async_schedule_domain(dapm_post_sequence_async, d, |
1925 | &async_domain); | |
1926 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1927 | |
8078d87f LG |
1928 | /* do we need to notify any clients that DAPM event is complete */ |
1929 | list_for_each_entry(d, &card->dapm_list, list) { | |
1930 | if (d->stream_event) | |
1931 | d->stream_event(d, event); | |
1932 | } | |
1933 | ||
95dd5cd6 | 1934 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1935 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1936 | pop_wait(card->pop_time); |
cb507e7e | 1937 | |
84e90930 MB |
1938 | trace_snd_soc_dapm_done(card); |
1939 | ||
42aa3418 | 1940 | return 0; |
2b97eabc RP |
1941 | } |
1942 | ||
79fb9387 | 1943 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1944 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1945 | char __user *user_buf, | |
1946 | size_t count, loff_t *ppos) | |
1947 | { | |
1948 | struct snd_soc_dapm_widget *w = file->private_data; | |
1949 | char *buf; | |
1950 | int in, out; | |
1951 | ssize_t ret; | |
1952 | struct snd_soc_dapm_path *p = NULL; | |
1953 | ||
1954 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1955 | if (!buf) | |
1956 | return -ENOMEM; | |
1957 | ||
ec2e3031 | 1958 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1959 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1960 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1961 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1962 | |
f13ebada MB |
1963 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1964 | w->name, w->power ? "On" : "Off", | |
1965 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1966 | |
d033c36a MB |
1967 | if (w->reg >= 0) |
1968 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1969 | " - R%d(0x%x) mask 0x%x", |
1970 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1971 | |
1972 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1973 | ||
3eef08ba MB |
1974 | if (w->sname) |
1975 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1976 | w->sname, | |
1977 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1978 | |
1979 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1980 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1981 | continue; |
1982 | ||
79fb9387 MB |
1983 | if (p->connect) |
1984 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1985 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1986 | p->name ? p->name : "static", |
1987 | p->source->name); | |
1988 | } | |
1989 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1990 | if (p->connected && !p->connected(w, p->sink)) |
1991 | continue; | |
1992 | ||
79fb9387 MB |
1993 | if (p->connect) |
1994 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1995 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1996 | p->name ? p->name : "static", |
1997 | p->sink->name); | |
1998 | } | |
1999 | ||
2000 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
2001 | ||
2002 | kfree(buf); | |
2003 | return ret; | |
2004 | } | |
2005 | ||
2006 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2007 | .open = simple_open, |
79fb9387 | 2008 | .read = dapm_widget_power_read_file, |
6038f373 | 2009 | .llseek = default_llseek, |
79fb9387 MB |
2010 | }; |
2011 | ||
ef49e4fa MB |
2012 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2013 | size_t count, loff_t *ppos) | |
2014 | { | |
2015 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2016 | char *level; | |
2017 | ||
2018 | switch (dapm->bias_level) { | |
2019 | case SND_SOC_BIAS_ON: | |
2020 | level = "On\n"; | |
2021 | break; | |
2022 | case SND_SOC_BIAS_PREPARE: | |
2023 | level = "Prepare\n"; | |
2024 | break; | |
2025 | case SND_SOC_BIAS_STANDBY: | |
2026 | level = "Standby\n"; | |
2027 | break; | |
2028 | case SND_SOC_BIAS_OFF: | |
2029 | level = "Off\n"; | |
2030 | break; | |
2031 | default: | |
a6ed0608 | 2032 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2033 | level = "Unknown\n"; |
2034 | break; | |
2035 | } | |
2036 | ||
2037 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2038 | strlen(level)); | |
2039 | } | |
2040 | ||
2041 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2042 | .open = simple_open, |
ef49e4fa MB |
2043 | .read = dapm_bias_read_file, |
2044 | .llseek = default_llseek, | |
2045 | }; | |
2046 | ||
8eecaf62 LPC |
2047 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2048 | struct dentry *parent) | |
79fb9387 | 2049 | { |
79fb9387 MB |
2050 | struct dentry *d; |
2051 | ||
8eecaf62 LPC |
2052 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2053 | ||
2054 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2055 | dev_warn(dapm->dev, |
30a6a1a4 | 2056 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2057 | return; |
8eecaf62 | 2058 | } |
79fb9387 | 2059 | |
ef49e4fa MB |
2060 | d = debugfs_create_file("bias_level", 0444, |
2061 | dapm->debugfs_dapm, dapm, | |
2062 | &dapm_bias_fops); | |
2063 | if (!d) | |
2064 | dev_warn(dapm->dev, | |
2065 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2066 | } |
ef49e4fa | 2067 | |
d5d1e0be LPC |
2068 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2069 | { | |
2070 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2071 | struct dentry *d; | |
79fb9387 | 2072 | |
d5d1e0be LPC |
2073 | if (!dapm->debugfs_dapm || !w->name) |
2074 | return; | |
2075 | ||
2076 | d = debugfs_create_file(w->name, 0444, | |
2077 | dapm->debugfs_dapm, w, | |
2078 | &dapm_widget_power_fops); | |
2079 | if (!d) | |
2080 | dev_warn(w->dapm->dev, | |
2081 | "ASoC: Failed to create %s debugfs file\n", | |
2082 | w->name); | |
79fb9387 | 2083 | } |
d5d1e0be | 2084 | |
6c45e126 LPC |
2085 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2086 | { | |
2087 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2088 | } | |
2089 | ||
79fb9387 | 2090 | #else |
8eecaf62 LPC |
2091 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2092 | struct dentry *parent) | |
79fb9387 MB |
2093 | { |
2094 | } | |
d5d1e0be LPC |
2095 | |
2096 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2097 | { | |
2098 | } | |
2099 | ||
6c45e126 LPC |
2100 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2101 | { | |
2102 | } | |
2103 | ||
79fb9387 MB |
2104 | #endif |
2105 | ||
2b97eabc | 2106 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2107 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2108 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2109 | { |
2110 | struct snd_soc_dapm_path *path; | |
2111 | int found = 0; | |
2112 | ||
2b97eabc | 2113 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2114 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2115 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2116 | continue; |
2117 | ||
2118 | found = 1; | |
2119 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2120 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2121 | path->connect = 1; /* new connection */ |
75c1f891 | 2122 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2123 | } else { |
2124 | if (path->connect) | |
75c1f891 MB |
2125 | dapm_mark_dirty(path->source, |
2126 | "mux disconnection"); | |
2b97eabc | 2127 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2128 | } |
ce6cfaf1 | 2129 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2130 | } |
2131 | ||
ce6cfaf1 | 2132 | if (found) |
95dd5cd6 | 2133 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2134 | |
618dae11 | 2135 | return found; |
2b97eabc | 2136 | } |
4edbb345 | 2137 | |
ce6cfaf1 | 2138 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2139 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2140 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2141 | { |
ce6cfaf1 | 2142 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2143 | int ret; |
2144 | ||
3cd04343 | 2145 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2146 | card->update = update; |
95dd5cd6 | 2147 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2148 | card->update = NULL; |
4edbb345 | 2149 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2150 | if (ret > 0) |
c3f48ae6 | 2151 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2152 | return ret; |
2153 | } | |
40f02cd9 | 2154 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2155 | |
1b075e3f | 2156 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2157 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2158 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2159 | { |
2160 | struct snd_soc_dapm_path *path; | |
2161 | int found = 0; | |
2162 | ||
2b97eabc | 2163 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2164 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2165 | found = 1; |
283375ce | 2166 | path->connect = connect; |
75c1f891 | 2167 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2168 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2169 | } |
2170 | ||
ce6cfaf1 | 2171 | if (found) |
95dd5cd6 | 2172 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2173 | |
618dae11 | 2174 | return found; |
2b97eabc | 2175 | } |
4edbb345 | 2176 | |
ce6cfaf1 | 2177 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2178 | struct snd_kcontrol *kcontrol, int connect, |
2179 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2180 | { |
ce6cfaf1 | 2181 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2182 | int ret; |
2183 | ||
3cd04343 | 2184 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2185 | card->update = update; |
95dd5cd6 | 2186 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2187 | card->update = NULL; |
4edbb345 | 2188 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2189 | if (ret > 0) |
c3f48ae6 | 2190 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2191 | return ret; |
2192 | } | |
40f02cd9 | 2193 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2194 | |
2195 | /* show dapm widget status in sys fs */ | |
2196 | static ssize_t dapm_widget_show(struct device *dev, | |
2197 | struct device_attribute *attr, char *buf) | |
2198 | { | |
36ae1a96 | 2199 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2200 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2201 | struct snd_soc_dapm_widget *w; |
2202 | int count = 0; | |
2203 | char *state = "not set"; | |
2204 | ||
97c866de JN |
2205 | list_for_each_entry(w, &codec->card->widgets, list) { |
2206 | if (w->dapm != &codec->dapm) | |
2207 | continue; | |
2b97eabc RP |
2208 | |
2209 | /* only display widgets that burnm power */ | |
2210 | switch (w->id) { | |
2211 | case snd_soc_dapm_hp: | |
2212 | case snd_soc_dapm_mic: | |
2213 | case snd_soc_dapm_spk: | |
2214 | case snd_soc_dapm_line: | |
2215 | case snd_soc_dapm_micbias: | |
2216 | case snd_soc_dapm_dac: | |
2217 | case snd_soc_dapm_adc: | |
2218 | case snd_soc_dapm_pga: | |
d88429a6 | 2219 | case snd_soc_dapm_out_drv: |
2b97eabc | 2220 | case snd_soc_dapm_mixer: |
ca9c1aae | 2221 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2222 | case snd_soc_dapm_supply: |
62ea874a | 2223 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2224 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2225 | if (w->name) |
2226 | count += sprintf(buf + count, "%s: %s\n", | |
2227 | w->name, w->power ? "On":"Off"); | |
2228 | break; | |
2229 | default: | |
2230 | break; | |
2231 | } | |
2232 | } | |
2233 | ||
ce6120cc | 2234 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2235 | case SND_SOC_BIAS_ON: |
2236 | state = "On"; | |
2b97eabc | 2237 | break; |
0be9898a MB |
2238 | case SND_SOC_BIAS_PREPARE: |
2239 | state = "Prepare"; | |
2b97eabc | 2240 | break; |
0be9898a MB |
2241 | case SND_SOC_BIAS_STANDBY: |
2242 | state = "Standby"; | |
2b97eabc | 2243 | break; |
0be9898a MB |
2244 | case SND_SOC_BIAS_OFF: |
2245 | state = "Off"; | |
2b97eabc RP |
2246 | break; |
2247 | } | |
2248 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2249 | ||
2250 | return count; | |
2251 | } | |
2252 | ||
2253 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2254 | ||
2255 | int snd_soc_dapm_sys_add(struct device *dev) | |
2256 | { | |
12ef193d | 2257 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2258 | } |
2259 | ||
2260 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2261 | { | |
aef90843 | 2262 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2263 | } |
2264 | ||
8872293f LPC |
2265 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2266 | { | |
2267 | list_del(&path->list_sink); | |
2268 | list_del(&path->list_source); | |
5106b92f | 2269 | list_del(&path->list_kcontrol); |
8872293f | 2270 | list_del(&path->list); |
8872293f LPC |
2271 | kfree(path); |
2272 | } | |
2273 | ||
2b97eabc | 2274 | /* free all dapm widgets and resources */ |
ce6120cc | 2275 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2276 | { |
2277 | struct snd_soc_dapm_widget *w, *next_w; | |
2278 | struct snd_soc_dapm_path *p, *next_p; | |
2279 | ||
97c866de JN |
2280 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2281 | if (w->dapm != dapm) | |
2282 | continue; | |
2b97eabc | 2283 | list_del(&w->list); |
8ddab3f5 JN |
2284 | /* |
2285 | * remove source and sink paths associated to this widget. | |
2286 | * While removing the path, remove reference to it from both | |
2287 | * source and sink widgets so that path is removed only once. | |
2288 | */ | |
8872293f LPC |
2289 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2290 | dapm_free_path(p); | |
2291 | ||
2292 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2293 | dapm_free_path(p); | |
2294 | ||
fad59888 | 2295 | kfree(w->kcontrols); |
ead9b919 | 2296 | kfree(w->name); |
2b97eabc RP |
2297 | kfree(w); |
2298 | } | |
2b97eabc RP |
2299 | } |
2300 | ||
91a5fca4 LPC |
2301 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2302 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2303 | bool search_other_contexts) | |
a5302181 LG |
2304 | { |
2305 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2306 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2307 | |
97c866de | 2308 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2309 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2310 | if (w->dapm == dapm) |
2311 | return w; | |
2312 | else | |
2313 | fallback = w; | |
a5302181 LG |
2314 | } |
2315 | } | |
2316 | ||
91a5fca4 LPC |
2317 | if (search_other_contexts) |
2318 | return fallback; | |
2319 | ||
2320 | return NULL; | |
2321 | } | |
2322 | ||
2323 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2324 | const char *pin, int status) | |
2325 | { | |
2326 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2327 | ||
2328 | if (!w) { | |
30a6a1a4 | 2329 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2330 | return -EINVAL; |
0d86733c MB |
2331 | } |
2332 | ||
1a8b2d9d MB |
2333 | if (w->connected != status) |
2334 | dapm_mark_dirty(w, "pin configuration"); | |
2335 | ||
91a5fca4 LPC |
2336 | w->connected = status; |
2337 | if (status == 0) | |
2338 | w->force = 0; | |
2339 | ||
2340 | return 0; | |
a5302181 LG |
2341 | } |
2342 | ||
2b97eabc | 2343 | /** |
a5302181 | 2344 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2345 | * @dapm: DAPM context |
2b97eabc RP |
2346 | * |
2347 | * Walks all dapm audio paths and powers widgets according to their | |
2348 | * stream or path usage. | |
2349 | * | |
2350 | * Returns 0 for success. | |
2351 | */ | |
ce6120cc | 2352 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2353 | { |
a73fb2df LG |
2354 | int ret; |
2355 | ||
4f4c0072 MB |
2356 | /* |
2357 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2358 | * silly DAPM runs during card startup. | |
2359 | */ | |
2360 | if (!dapm->card || !dapm->card->instantiated) | |
2361 | return 0; | |
2362 | ||
3cd04343 | 2363 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
95dd5cd6 | 2364 | ret = dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df LG |
2365 | mutex_unlock(&dapm->card->dapm_mutex); |
2366 | return ret; | |
2b97eabc | 2367 | } |
a5302181 | 2368 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2369 | |
2553628e LPC |
2370 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2371 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2372 | const char *control, | |
2373 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2374 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2375 | { |
2376 | struct snd_soc_dapm_path *path; | |
2553628e | 2377 | int ret; |
2b97eabc RP |
2378 | |
2379 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2380 | if (!path) | |
2381 | return -ENOMEM; | |
2382 | ||
2383 | path->source = wsource; | |
2384 | path->sink = wsink; | |
2553628e | 2385 | path->connected = connected; |
2b97eabc | 2386 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2387 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2388 | INIT_LIST_HEAD(&path->list_source); |
2389 | INIT_LIST_HEAD(&path->list_sink); | |
2390 | ||
2391 | /* check for external widgets */ | |
2392 | if (wsink->id == snd_soc_dapm_input) { | |
2393 | if (wsource->id == snd_soc_dapm_micbias || | |
2394 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2395 | wsource->id == snd_soc_dapm_line || |
2396 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2397 | wsink->ext = 1; |
2398 | } | |
2399 | if (wsource->id == snd_soc_dapm_output) { | |
2400 | if (wsink->id == snd_soc_dapm_spk || | |
2401 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2402 | wsink->id == snd_soc_dapm_line || |
2403 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2404 | wsource->ext = 1; |
2405 | } | |
2406 | ||
34742cb0 LPC |
2407 | dapm_mark_dirty(wsource, "Route added"); |
2408 | dapm_mark_dirty(wsink, "Route added"); | |
2409 | ||
2b97eabc RP |
2410 | /* connect static paths */ |
2411 | if (control == NULL) { | |
8ddab3f5 | 2412 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2413 | list_add(&path->list_sink, &wsink->sources); |
2414 | list_add(&path->list_source, &wsource->sinks); | |
2415 | path->connect = 1; | |
2416 | return 0; | |
2417 | } | |
2418 | ||
2419 | /* connect dynamic paths */ | |
dc2bea61 | 2420 | switch (wsink->id) { |
2b97eabc RP |
2421 | case snd_soc_dapm_adc: |
2422 | case snd_soc_dapm_dac: | |
2423 | case snd_soc_dapm_pga: | |
d88429a6 | 2424 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2425 | case snd_soc_dapm_input: |
2426 | case snd_soc_dapm_output: | |
1ab97c8c | 2427 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2428 | case snd_soc_dapm_micbias: |
2429 | case snd_soc_dapm_vmid: | |
2430 | case snd_soc_dapm_pre: | |
2431 | case snd_soc_dapm_post: | |
246d0a17 | 2432 | case snd_soc_dapm_supply: |
62ea874a | 2433 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2434 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2435 | case snd_soc_dapm_aif_in: |
2436 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2437 | case snd_soc_dapm_dai_in: |
2438 | case snd_soc_dapm_dai_out: | |
c74184ed | 2439 | case snd_soc_dapm_dai_link: |
57295073 | 2440 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2441 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2442 | list_add(&path->list_sink, &wsink->sources); |
2443 | list_add(&path->list_source, &wsource->sinks); | |
2444 | path->connect = 1; | |
2445 | return 0; | |
2446 | case snd_soc_dapm_mux: | |
24ff33ac | 2447 | case snd_soc_dapm_virt_mux: |
74155556 | 2448 | case snd_soc_dapm_value_mux: |
ce6120cc | 2449 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2450 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2451 | if (ret != 0) |
2452 | goto err; | |
2453 | break; | |
2454 | case snd_soc_dapm_switch: | |
2455 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2456 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2457 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2458 | if (ret != 0) |
2459 | goto err; | |
2460 | break; | |
2461 | case snd_soc_dapm_hp: | |
2462 | case snd_soc_dapm_mic: | |
2463 | case snd_soc_dapm_line: | |
2464 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2465 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2466 | list_add(&path->list_sink, &wsink->sources); |
2467 | list_add(&path->list_source, &wsource->sinks); | |
2468 | path->connect = 0; | |
2469 | return 0; | |
2470 | } | |
fabd0384 | 2471 | |
2b97eabc | 2472 | return 0; |
2553628e LPC |
2473 | err: |
2474 | kfree(path); | |
2475 | return ret; | |
2476 | } | |
2b97eabc | 2477 | |
2553628e | 2478 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
bd23c5b6 ASL |
2479 | const struct snd_soc_dapm_route *route, |
2480 | unsigned int is_prefixed) | |
2553628e LPC |
2481 | { |
2482 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2483 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2484 | const char *sink; | |
2485 | const char *source; | |
2486 | char prefixed_sink[80]; | |
2487 | char prefixed_source[80]; | |
2488 | int ret; | |
2489 | ||
bd23c5b6 | 2490 | if (dapm->codec && dapm->codec->name_prefix && !is_prefixed) { |
2553628e LPC |
2491 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2492 | dapm->codec->name_prefix, route->sink); | |
2493 | sink = prefixed_sink; | |
2494 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2495 | dapm->codec->name_prefix, route->source); | |
2496 | source = prefixed_source; | |
2497 | } else { | |
2498 | sink = route->sink; | |
2499 | source = route->source; | |
2500 | } | |
2501 | ||
2502 | /* | |
2503 | * find src and dest widgets over all widgets but favor a widget from | |
2504 | * current DAPM context | |
2505 | */ | |
2506 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2507 | if (!wsink && !(strcmp(w->name, sink))) { | |
2508 | wtsink = w; | |
2509 | if (w->dapm == dapm) | |
2510 | wsink = w; | |
2511 | continue; | |
2512 | } | |
2513 | if (!wsource && !(strcmp(w->name, source))) { | |
2514 | wtsource = w; | |
2515 | if (w->dapm == dapm) | |
2516 | wsource = w; | |
2517 | } | |
2518 | } | |
2519 | /* use widget from another DAPM context if not found from this */ | |
2520 | if (!wsink) | |
2521 | wsink = wtsink; | |
2522 | if (!wsource) | |
2523 | wsource = wtsource; | |
2524 | ||
2525 | if (wsource == NULL) { | |
2526 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2527 | route->source); | |
2528 | return -ENODEV; | |
2529 | } | |
2530 | if (wsink == NULL) { | |
2531 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2532 | route->sink); | |
2533 | return -ENODEV; | |
2534 | } | |
2535 | ||
2536 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2537 | route->connected); | |
2538 | if (ret) | |
2539 | goto err; | |
2540 | ||
2541 | return 0; | |
2b97eabc | 2542 | err: |
30a6a1a4 | 2543 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2544 | source, route->control, sink); |
2b97eabc RP |
2545 | return ret; |
2546 | } | |
105f1c28 | 2547 | |
efcc3c61 MB |
2548 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2549 | const struct snd_soc_dapm_route *route) | |
2550 | { | |
2551 | struct snd_soc_dapm_path *path, *p; | |
2552 | const char *sink; | |
2553 | const char *source; | |
2554 | char prefixed_sink[80]; | |
2555 | char prefixed_source[80]; | |
2556 | ||
2557 | if (route->control) { | |
2558 | dev_err(dapm->dev, | |
30a6a1a4 | 2559 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2560 | return -EINVAL; |
2561 | } | |
2562 | ||
2563 | if (dapm->codec && dapm->codec->name_prefix) { | |
2564 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2565 | dapm->codec->name_prefix, route->sink); | |
2566 | sink = prefixed_sink; | |
2567 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2568 | dapm->codec->name_prefix, route->source); | |
2569 | source = prefixed_source; | |
2570 | } else { | |
2571 | sink = route->sink; | |
2572 | source = route->source; | |
2573 | } | |
2574 | ||
2575 | path = NULL; | |
2576 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2577 | if (strcmp(p->source->name, source) != 0) | |
2578 | continue; | |
2579 | if (strcmp(p->sink->name, sink) != 0) | |
2580 | continue; | |
2581 | path = p; | |
2582 | break; | |
2583 | } | |
2584 | ||
2585 | if (path) { | |
2586 | dapm_mark_dirty(path->source, "Route removed"); | |
2587 | dapm_mark_dirty(path->sink, "Route removed"); | |
2588 | ||
8872293f | 2589 | dapm_free_path(path); |
efcc3c61 | 2590 | } else { |
30a6a1a4 | 2591 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2592 | source, sink); |
2593 | } | |
2594 | ||
2595 | return 0; | |
2596 | } | |
2597 | ||
105f1c28 MB |
2598 | /** |
2599 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2600 | * @dapm: DAPM context |
105f1c28 MB |
2601 | * @route: audio routes |
2602 | * @num: number of routes | |
2603 | * | |
2604 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2605 | * the widget receiving the audio signal, whilst the source is the sender | |
2606 | * of the audio signal. | |
2607 | * | |
2608 | * Returns 0 for success else error. On error all resources can be freed | |
2609 | * with a call to snd_soc_card_free(). | |
2610 | */ | |
ce6120cc | 2611 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2612 | const struct snd_soc_dapm_route *route, int num) |
2613 | { | |
62d4a4b9 | 2614 | int i, r, ret = 0; |
105f1c28 | 2615 | |
a73fb2df | 2616 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2617 | for (i = 0; i < num; i++) { |
bd23c5b6 | 2618 | r = snd_soc_dapm_add_route(dapm, route, false); |
62d4a4b9 | 2619 | if (r < 0) { |
30a6a1a4 LG |
2620 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2621 | route->source, | |
2622 | route->control ? route->control : "direct", | |
2623 | route->sink); | |
62d4a4b9 | 2624 | ret = r; |
105f1c28 MB |
2625 | } |
2626 | route++; | |
2627 | } | |
a73fb2df | 2628 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2629 | |
60884c27 | 2630 | return ret; |
105f1c28 MB |
2631 | } |
2632 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2633 | ||
efcc3c61 MB |
2634 | /** |
2635 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2636 | * @dapm: DAPM context | |
2637 | * @route: audio routes | |
2638 | * @num: number of routes | |
2639 | * | |
2640 | * Removes routes from the DAPM context. | |
2641 | */ | |
2642 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2643 | const struct snd_soc_dapm_route *route, int num) | |
2644 | { | |
2645 | int i, ret = 0; | |
2646 | ||
2647 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2648 | for (i = 0; i < num; i++) { | |
2649 | snd_soc_dapm_del_route(dapm, route); | |
2650 | route++; | |
2651 | } | |
2652 | mutex_unlock(&dapm->card->dapm_mutex); | |
2653 | ||
2654 | return ret; | |
2655 | } | |
2656 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2657 | ||
bf3a9e13 MB |
2658 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2659 | const struct snd_soc_dapm_route *route) | |
2660 | { | |
2661 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2662 | route->source, | |
2663 | true); | |
2664 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2665 | route->sink, | |
2666 | true); | |
2667 | struct snd_soc_dapm_path *path; | |
2668 | int count = 0; | |
2669 | ||
2670 | if (!source) { | |
30a6a1a4 | 2671 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2672 | route->source); |
2673 | return -ENODEV; | |
2674 | } | |
2675 | ||
2676 | if (!sink) { | |
30a6a1a4 | 2677 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2678 | route->sink); |
2679 | return -ENODEV; | |
2680 | } | |
2681 | ||
2682 | if (route->control || route->connected) | |
30a6a1a4 | 2683 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2684 | route->source, route->sink); |
2685 | ||
2686 | list_for_each_entry(path, &source->sinks, list_source) { | |
2687 | if (path->sink == sink) { | |
2688 | path->weak = 1; | |
2689 | count++; | |
2690 | } | |
2691 | } | |
2692 | ||
2693 | if (count == 0) | |
30a6a1a4 | 2694 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2695 | route->source, route->sink); |
2696 | if (count > 1) | |
30a6a1a4 | 2697 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2698 | count, route->source, route->sink); |
2699 | ||
2700 | return 0; | |
2701 | } | |
2702 | ||
2703 | /** | |
2704 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2705 | * @dapm: DAPM context | |
2706 | * @route: audio routes | |
2707 | * @num: number of routes | |
2708 | * | |
2709 | * Mark existing routes matching those specified in the passed array | |
2710 | * as being weak, meaning that they are ignored for the purpose of | |
2711 | * power decisions. The main intended use case is for sidetone paths | |
2712 | * which couple audio between other independent paths if they are both | |
2713 | * active in order to make the combination work better at the user | |
2714 | * level but which aren't intended to be "used". | |
2715 | * | |
2716 | * Note that CODEC drivers should not use this as sidetone type paths | |
2717 | * can frequently also be used as bypass paths. | |
2718 | */ | |
2719 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2720 | const struct snd_soc_dapm_route *route, int num) | |
2721 | { | |
2722 | int i, err; | |
2723 | int ret = 0; | |
2724 | ||
a73fb2df | 2725 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2726 | for (i = 0; i < num; i++) { |
2727 | err = snd_soc_dapm_weak_route(dapm, route); | |
2728 | if (err) | |
2729 | ret = err; | |
2730 | route++; | |
2731 | } | |
a73fb2df | 2732 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2733 | |
2734 | return ret; | |
2735 | } | |
2736 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2737 | ||
2b97eabc RP |
2738 | /** |
2739 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2740 | * @dapm: DAPM context |
2b97eabc RP |
2741 | * |
2742 | * Checks the codec for any new dapm widgets and creates them if found. | |
2743 | * | |
2744 | * Returns 0 for success. | |
2745 | */ | |
824ef826 | 2746 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2747 | { |
2748 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2749 | unsigned int val; |
2b97eabc | 2750 | |
95dd5cd6 | 2751 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2752 | |
95dd5cd6 | 2753 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2754 | { |
2755 | if (w->new) | |
2756 | continue; | |
2757 | ||
fad59888 SW |
2758 | if (w->num_kcontrols) { |
2759 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2760 | sizeof(struct snd_kcontrol *), | |
2761 | GFP_KERNEL); | |
a73fb2df | 2762 | if (!w->kcontrols) { |
95dd5cd6 | 2763 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2764 | return -ENOMEM; |
a73fb2df | 2765 | } |
fad59888 SW |
2766 | } |
2767 | ||
2b97eabc RP |
2768 | switch(w->id) { |
2769 | case snd_soc_dapm_switch: | |
2770 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2771 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2772 | dapm_new_mixer(w); |
2b97eabc RP |
2773 | break; |
2774 | case snd_soc_dapm_mux: | |
24ff33ac | 2775 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2776 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2777 | dapm_new_mux(w); |
2b97eabc | 2778 | break; |
2b97eabc | 2779 | case snd_soc_dapm_pga: |
d88429a6 | 2780 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2781 | dapm_new_pga(w); |
2b97eabc | 2782 | break; |
7ca3a18b | 2783 | default: |
2b97eabc RP |
2784 | break; |
2785 | } | |
b66a70d5 MB |
2786 | |
2787 | /* Read the initial power state from the device */ | |
2788 | if (w->reg >= 0) { | |
f7d3c170 ASL |
2789 | soc_widget_read(w, w->reg, &val); |
2790 | val = val >> w->shift; | |
de9ba98b LPC |
2791 | val &= w->mask; |
2792 | if (val == w->on_val) | |
b66a70d5 MB |
2793 | w->power = 1; |
2794 | } | |
2795 | ||
2b97eabc | 2796 | w->new = 1; |
d5d1e0be | 2797 | |
7508b12a | 2798 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2799 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2800 | } |
2801 | ||
95dd5cd6 LPC |
2802 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2803 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2804 | return 0; |
2805 | } | |
2806 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2807 | ||
2808 | /** | |
2809 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2810 | * @kcontrol: mixer control | |
ac11a2b3 | 2811 | * @ucontrol: control element information |
2b97eabc RP |
2812 | * |
2813 | * Callback to get the value of a dapm mixer control. | |
2814 | * | |
2815 | * Returns 0 for success. | |
2816 | */ | |
2817 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2818 | struct snd_ctl_elem_value *ucontrol) | |
2819 | { | |
eee5d7f9 | 2820 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2821 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2822 | struct soc_mixer_control *mc = |
2823 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2824 | int reg = mc->reg; |
815ecf8d | 2825 | unsigned int shift = mc->shift; |
4eaa9819 | 2826 | int max = mc->max; |
815ecf8d | 2827 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2828 | unsigned int invert = mc->invert; |
57295073 | 2829 | unsigned int val; |
da602ab8 BT |
2830 | |
2831 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2832 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2833 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2834 | kcontrol->id.name); |
2b97eabc | 2835 | |
57295073 | 2836 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
249ce138 | 2837 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) |
57295073 LPC |
2838 | val = (snd_soc_read(codec, reg) >> shift) & mask; |
2839 | else | |
2840 | val = dapm_kcontrol_get_value(kcontrol); | |
2841 | mutex_unlock(&card->dapm_mutex); | |
2842 | ||
da602ab8 | 2843 | if (invert) |
57295073 LPC |
2844 | ucontrol->value.integer.value[0] = max - val; |
2845 | else | |
2846 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2847 | |
2848 | return 0; | |
2849 | } | |
2850 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2851 | ||
2852 | /** | |
2853 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2854 | * @kcontrol: mixer control | |
ac11a2b3 | 2855 | * @ucontrol: control element information |
2b97eabc RP |
2856 | * |
2857 | * Callback to set the value of a dapm mixer control. | |
2858 | * | |
2859 | * Returns 0 for success. | |
2860 | */ | |
2861 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2862 | struct snd_ctl_elem_value *ucontrol) | |
2863 | { | |
eee5d7f9 | 2864 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2865 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2866 | struct soc_mixer_control *mc = |
2867 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2868 | int reg = mc->reg; |
815ecf8d | 2869 | unsigned int shift = mc->shift; |
4eaa9819 | 2870 | int max = mc->max; |
815ecf8d JS |
2871 | unsigned int mask = (1 << fls(max)) - 1; |
2872 | unsigned int invert = mc->invert; | |
e9cf7049 | 2873 | unsigned int val; |
97404f2e MB |
2874 | int connect, change; |
2875 | struct snd_soc_dapm_update update; | |
52765976 | 2876 | int ret = 0; |
2b97eabc | 2877 | |
da602ab8 | 2878 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2879 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2880 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2881 | kcontrol->id.name); |
2882 | ||
2b97eabc | 2883 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2884 | connect = !!val; |
2b97eabc RP |
2885 | |
2886 | if (invert) | |
a7a4ac86 | 2887 | val = max - val; |
2b97eabc | 2888 | |
3cd04343 | 2889 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2890 | |
249ce138 | 2891 | change = dapm_kcontrol_set_value(kcontrol, val); |
57295073 | 2892 | |
249ce138 LPC |
2893 | if (reg != SND_SOC_NOPM) { |
2894 | mask = mask << shift; | |
2895 | val = val << shift; | |
2896 | ||
2897 | change = snd_soc_test_bits(codec, reg, mask, val); | |
2898 | } | |
57295073 | 2899 | |
97404f2e | 2900 | if (change) { |
249ce138 LPC |
2901 | if (reg != SND_SOC_NOPM) { |
2902 | update.kcontrol = kcontrol; | |
2903 | update.reg = reg; | |
2904 | update.mask = mask; | |
2905 | update.val = val; | |
97404f2e | 2906 | |
249ce138 LPC |
2907 | card->update = &update; |
2908 | } | |
97404f2e | 2909 | |
52765976 | 2910 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2911 | |
564c6504 | 2912 | card->update = NULL; |
283375ce MB |
2913 | } |
2914 | ||
a73fb2df | 2915 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
2916 | |
2917 | if (ret > 0) | |
2918 | soc_dpcm_runtime_update(card); | |
2919 | ||
56a67834 | 2920 | return change; |
2b97eabc RP |
2921 | } |
2922 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2923 | ||
2924 | /** | |
2925 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2926 | * @kcontrol: mixer control | |
ac11a2b3 | 2927 | * @ucontrol: control element information |
2b97eabc RP |
2928 | * |
2929 | * Callback to get the value of a dapm enumerated double mixer control. | |
2930 | * | |
2931 | * Returns 0 for success. | |
2932 | */ | |
2933 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2934 | struct snd_ctl_elem_value *ucontrol) | |
2935 | { | |
eee5d7f9 | 2936 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2937 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2938 | unsigned int val; |
2b97eabc | 2939 | |
eee5d7f9 | 2940 | val = snd_soc_read(codec, e->reg); |
86767b7d | 2941 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2942 | if (e->shift_l != e->shift_r) |
2943 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2944 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2945 | |
2946 | return 0; | |
2947 | } | |
2948 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2949 | ||
2950 | /** | |
2951 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2952 | * @kcontrol: mixer control | |
ac11a2b3 | 2953 | * @ucontrol: control element information |
2b97eabc RP |
2954 | * |
2955 | * Callback to set the value of a dapm enumerated double mixer control. | |
2956 | * | |
2957 | * Returns 0 for success. | |
2958 | */ | |
2959 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2960 | struct snd_ctl_elem_value *ucontrol) | |
2961 | { | |
cf7c1de2 | 2962 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2963 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2964 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2965 | unsigned int val, mux, change; |
86767b7d | 2966 | unsigned int mask; |
97404f2e | 2967 | struct snd_soc_dapm_update update; |
52765976 | 2968 | int ret = 0; |
2b97eabc | 2969 | |
f8ba0b7b | 2970 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2971 | return -EINVAL; |
2972 | mux = ucontrol->value.enumerated.item[0]; | |
2973 | val = mux << e->shift_l; | |
86767b7d | 2974 | mask = e->mask << e->shift_l; |
2b97eabc | 2975 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2976 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2977 | return -EINVAL; |
2978 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
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 | |
52765976 | 2992 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, 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 MB |
3038 | |
3039 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
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 | ||
2e72f8e3 PU |
3058 | /** |
3059 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
3060 | * callback | |
3061 | * @kcontrol: mixer control | |
3062 | * @ucontrol: control element information | |
3063 | * | |
3064 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
3065 | * | |
3066 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3067 | * used for handling bitfield coded enumeration for example. | |
3068 | * | |
3069 | * Returns 0 for success. | |
3070 | */ | |
3071 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
3072 | struct snd_ctl_elem_value *ucontrol) | |
3073 | { | |
eee5d7f9 | 3074 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
74155556 | 3075 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 3076 | unsigned int reg_val, val, mux; |
2e72f8e3 | 3077 | |
eee5d7f9 | 3078 | reg_val = snd_soc_read(codec, e->reg); |
2e72f8e3 PU |
3079 | val = (reg_val >> e->shift_l) & e->mask; |
3080 | for (mux = 0; mux < e->max; mux++) { | |
3081 | if (val == e->values[mux]) | |
3082 | break; | |
3083 | } | |
3084 | ucontrol->value.enumerated.item[0] = mux; | |
3085 | if (e->shift_l != e->shift_r) { | |
3086 | val = (reg_val >> e->shift_r) & e->mask; | |
3087 | for (mux = 0; mux < e->max; mux++) { | |
3088 | if (val == e->values[mux]) | |
3089 | break; | |
3090 | } | |
3091 | ucontrol->value.enumerated.item[1] = mux; | |
3092 | } | |
3093 | ||
3094 | return 0; | |
3095 | } | |
3096 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
3097 | ||
3098 | /** | |
3099 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
3100 | * callback | |
3101 | * @kcontrol: mixer control | |
3102 | * @ucontrol: control element information | |
3103 | * | |
3104 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
3105 | * | |
3106 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3107 | * used for handling bitfield coded enumeration for example. | |
3108 | * | |
3109 | * Returns 0 for success. | |
3110 | */ | |
3111 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
3112 | struct snd_ctl_elem_value *ucontrol) | |
3113 | { | |
cf7c1de2 | 3114 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3115 | struct snd_soc_card *card = codec->card; |
74155556 | 3116 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 3117 | unsigned int val, mux, change; |
46f5822f | 3118 | unsigned int mask; |
97404f2e | 3119 | struct snd_soc_dapm_update update; |
52765976 | 3120 | int ret = 0; |
2e72f8e3 PU |
3121 | |
3122 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
3123 | return -EINVAL; | |
3124 | mux = ucontrol->value.enumerated.item[0]; | |
3125 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
3126 | mask = e->mask << e->shift_l; | |
3127 | if (e->shift_l != e->shift_r) { | |
3128 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
3129 | return -EINVAL; | |
3130 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
3131 | mask |= e->mask << e->shift_r; | |
3132 | } | |
3133 | ||
3cd04343 | 3134 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3135 | |
eee5d7f9 | 3136 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 3137 | if (change) { |
ce6cfaf1 LPC |
3138 | update.kcontrol = kcontrol; |
3139 | update.reg = e->reg; | |
3140 | update.mask = mask; | |
3141 | update.val = val; | |
564c6504 | 3142 | card->update = &update; |
1642e3d4 | 3143 | |
52765976 | 3144 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
fafd2176 | 3145 | |
564c6504 | 3146 | card->update = NULL; |
fafd2176 | 3147 | } |
2e72f8e3 | 3148 | |
a73fb2df | 3149 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3150 | |
3151 | if (ret > 0) | |
3152 | soc_dpcm_runtime_update(card); | |
3153 | ||
97404f2e | 3154 | return change; |
2e72f8e3 PU |
3155 | } |
3156 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
3157 | ||
8b37dbd2 MB |
3158 | /** |
3159 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3160 | * | |
3161 | * @kcontrol: mixer control | |
3162 | * @uinfo: control element information | |
3163 | * | |
3164 | * Callback to provide information about a pin switch control. | |
3165 | */ | |
3166 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3167 | struct snd_ctl_elem_info *uinfo) | |
3168 | { | |
3169 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3170 | uinfo->count = 1; | |
3171 | uinfo->value.integer.min = 0; | |
3172 | uinfo->value.integer.max = 1; | |
3173 | ||
3174 | return 0; | |
3175 | } | |
3176 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3177 | ||
3178 | /** | |
3179 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3180 | * | |
3181 | * @kcontrol: mixer control | |
3182 | * @ucontrol: Value | |
3183 | */ | |
3184 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3185 | struct snd_ctl_elem_value *ucontrol) | |
3186 | { | |
48a8c394 | 3187 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3188 | const char *pin = (const char *)kcontrol->private_value; |
3189 | ||
3cd04343 | 3190 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3191 | |
3192 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3193 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3194 | |
a73fb2df | 3195 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3196 | |
3197 | return 0; | |
3198 | } | |
3199 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3200 | ||
3201 | /** | |
3202 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3203 | * | |
3204 | * @kcontrol: mixer control | |
3205 | * @ucontrol: Value | |
3206 | */ | |
3207 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3208 | struct snd_ctl_elem_value *ucontrol) | |
3209 | { | |
48a8c394 | 3210 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3211 | const char *pin = (const char *)kcontrol->private_value; |
3212 | ||
8b37dbd2 | 3213 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3214 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3215 | else |
48a8c394 | 3216 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3217 | |
a73fb2df | 3218 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3219 | return 0; |
3220 | } | |
3221 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3222 | ||
5ba06fc9 MB |
3223 | static struct snd_soc_dapm_widget * |
3224 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3225 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3226 | { |
3227 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3228 | int ret; |
2b97eabc RP |
3229 | |
3230 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3231 | return NULL; |
2b97eabc | 3232 | |
62ea874a MB |
3233 | switch (w->id) { |
3234 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3235 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3236 | if (IS_ERR(w->regulator)) { | |
3237 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3238 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3239 | w->name, ret); |
5ba06fc9 | 3240 | return NULL; |
62ea874a | 3241 | } |
8784c77a | 3242 | |
de9ba98b | 3243 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3244 | ret = regulator_allow_bypass(w->regulator, true); |
3245 | if (ret != 0) | |
3246 | dev_warn(w->dapm->dev, | |
30686c35 | 3247 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3248 | w->name, ret); |
3249 | } | |
62ea874a | 3250 | break; |
d7e7eb91 | 3251 | case snd_soc_dapm_clock_supply: |
165961ef | 3252 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3253 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3254 | if (IS_ERR(w->clk)) { |
3255 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3256 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3257 | w->name, ret); |
3258 | return NULL; | |
3259 | } | |
ec02995a MB |
3260 | #else |
3261 | return NULL; | |
3262 | #endif | |
d7e7eb91 | 3263 | break; |
62ea874a MB |
3264 | default: |
3265 | break; | |
3266 | } | |
2b97eabc | 3267 | |
88e8b9a8 | 3268 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3269 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3270 | dapm->codec->name_prefix, widget->name); | |
3271 | else | |
3272 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3273 | ||
ead9b919 JN |
3274 | if (w->name == NULL) { |
3275 | kfree(w); | |
5ba06fc9 | 3276 | return NULL; |
ead9b919 | 3277 | } |
ead9b919 | 3278 | |
7ca3a18b MB |
3279 | switch (w->id) { |
3280 | case snd_soc_dapm_switch: | |
3281 | case snd_soc_dapm_mixer: | |
3282 | case snd_soc_dapm_mixer_named_ctl: | |
3283 | w->power_check = dapm_generic_check_power; | |
3284 | break; | |
3285 | case snd_soc_dapm_mux: | |
3286 | case snd_soc_dapm_virt_mux: | |
3287 | case snd_soc_dapm_value_mux: | |
3288 | w->power_check = dapm_generic_check_power; | |
3289 | break; | |
4616274d | 3290 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3291 | w->power_check = dapm_adc_check_power; |
3292 | break; | |
4616274d | 3293 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3294 | w->power_check = dapm_dac_check_power; |
3295 | break; | |
63c69a6e MB |
3296 | case snd_soc_dapm_adc: |
3297 | case snd_soc_dapm_aif_out: | |
3298 | case snd_soc_dapm_dac: | |
3299 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3300 | case snd_soc_dapm_pga: |
3301 | case snd_soc_dapm_out_drv: | |
3302 | case snd_soc_dapm_input: | |
3303 | case snd_soc_dapm_output: | |
3304 | case snd_soc_dapm_micbias: | |
3305 | case snd_soc_dapm_spk: | |
3306 | case snd_soc_dapm_hp: | |
3307 | case snd_soc_dapm_mic: | |
3308 | case snd_soc_dapm_line: | |
c74184ed | 3309 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3310 | w->power_check = dapm_generic_check_power; |
3311 | break; | |
3312 | case snd_soc_dapm_supply: | |
62ea874a | 3313 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3314 | case snd_soc_dapm_clock_supply: |
57295073 | 3315 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3316 | w->power_check = dapm_supply_check_power; |
3317 | break; | |
3318 | default: | |
3319 | w->power_check = dapm_always_on_check_power; | |
3320 | break; | |
3321 | } | |
3322 | ||
ce6120cc LG |
3323 | w->dapm = dapm; |
3324 | w->codec = dapm->codec; | |
b7950641 | 3325 | w->platform = dapm->platform; |
2b97eabc RP |
3326 | INIT_LIST_HEAD(&w->sources); |
3327 | INIT_LIST_HEAD(&w->sinks); | |
3328 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3329 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3330 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3331 | |
3332 | /* machine layer set ups unconnected pins and insertions */ | |
3333 | w->connected = 1; | |
5ba06fc9 | 3334 | return w; |
2b97eabc | 3335 | } |
2b97eabc | 3336 | |
4ba1327a MB |
3337 | /** |
3338 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3339 | * @dapm: DAPM context |
4ba1327a MB |
3340 | * @widget: widget array |
3341 | * @num: number of widgets | |
3342 | * | |
3343 | * Creates new DAPM controls based upon the templates. | |
3344 | * | |
3345 | * Returns 0 for success else error. | |
3346 | */ | |
ce6120cc | 3347 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3348 | const struct snd_soc_dapm_widget *widget, |
3349 | int num) | |
3350 | { | |
5ba06fc9 MB |
3351 | struct snd_soc_dapm_widget *w; |
3352 | int i; | |
60884c27 | 3353 | int ret = 0; |
4ba1327a | 3354 | |
a73fb2df | 3355 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3356 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3357 | w = snd_soc_dapm_new_control(dapm, widget); |
3358 | if (!w) { | |
f7d41ae8 | 3359 | dev_err(dapm->dev, |
5ba06fc9 MB |
3360 | "ASoC: Failed to create DAPM control %s\n", |
3361 | widget->name); | |
60884c27 DC |
3362 | ret = -ENOMEM; |
3363 | break; | |
b8b33cb5 | 3364 | } |
4ba1327a MB |
3365 | widget++; |
3366 | } | |
a73fb2df | 3367 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3368 | return ret; |
4ba1327a MB |
3369 | } |
3370 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3371 | ||
c74184ed MB |
3372 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3373 | struct snd_kcontrol *kcontrol, int event) | |
3374 | { | |
3375 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3376 | struct snd_soc_dai *source, *sink; | |
3377 | const struct snd_soc_pcm_stream *config = w->params; | |
3378 | struct snd_pcm_substream substream; | |
9747cec2 | 3379 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3380 | u64 fmt; |
3381 | int ret; | |
3382 | ||
bf4edea8 TI |
3383 | if (WARN_ON(!config) || |
3384 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3385 | return -EINVAL; | |
c74184ed MB |
3386 | |
3387 | /* We only support a single source and sink, pick the first */ | |
3388 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3389 | list_sink); | |
3390 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3391 | list_source); | |
3392 | ||
bf4edea8 TI |
3393 | if (WARN_ON(!source_p || !sink_p) || |
3394 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3395 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3396 | return -EINVAL; | |
c74184ed MB |
3397 | |
3398 | source = source_p->source->priv; | |
3399 | sink = sink_p->sink->priv; | |
3400 | ||
3401 | /* Be a little careful as we don't want to overflow the mask array */ | |
3402 | if (config->formats) { | |
3403 | fmt = ffs(config->formats) - 1; | |
3404 | } else { | |
30a6a1a4 | 3405 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3406 | config->formats); |
3407 | fmt = 0; | |
3408 | } | |
3409 | ||
3410 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3411 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3412 | if (!params) { | |
3413 | ret = -ENOMEM; | |
3414 | goto out; | |
3415 | } | |
3416 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3417 | |
9747cec2 | 3418 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3419 | config->rate_min; |
9747cec2 | 3420 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3421 | config->rate_max; |
3422 | ||
9747cec2 | 3423 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3424 | = config->channels_min; |
9747cec2 | 3425 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3426 | = config->channels_max; |
3427 | ||
3428 | memset(&substream, 0, sizeof(substream)); | |
3429 | ||
3430 | switch (event) { | |
3431 | case SND_SOC_DAPM_PRE_PMU: | |
3432 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3433 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3434 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3435 | params, source); |
c74184ed MB |
3436 | if (ret != 0) { |
3437 | dev_err(source->dev, | |
30a6a1a4 | 3438 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3439 | goto out; |
c74184ed MB |
3440 | } |
3441 | } | |
3442 | ||
3443 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3444 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3445 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3446 | sink); |
3447 | if (ret != 0) { | |
3448 | dev_err(sink->dev, | |
30a6a1a4 | 3449 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3450 | goto out; |
c74184ed MB |
3451 | } |
3452 | } | |
3453 | break; | |
3454 | ||
3455 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3456 | ret = snd_soc_dai_digital_mute(sink, 0, |
3457 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3458 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3459 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3460 | ret = 0; |
c74184ed MB |
3461 | break; |
3462 | ||
3463 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3464 | ret = snd_soc_dai_digital_mute(sink, 1, |
3465 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3466 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3467 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3468 | ret = 0; |
c74184ed MB |
3469 | break; |
3470 | ||
3471 | default: | |
a6ed0608 | 3472 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3473 | return -EINVAL; |
3474 | } | |
3475 | ||
9747cec2 MB |
3476 | out: |
3477 | kfree(params); | |
3478 | return ret; | |
c74184ed MB |
3479 | } |
3480 | ||
3481 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3482 | const struct snd_soc_pcm_stream *params, | |
3483 | struct snd_soc_dapm_widget *source, | |
3484 | struct snd_soc_dapm_widget *sink) | |
3485 | { | |
3486 | struct snd_soc_dapm_route routes[2]; | |
3487 | struct snd_soc_dapm_widget template; | |
3488 | struct snd_soc_dapm_widget *w; | |
3489 | size_t len; | |
3490 | char *link_name; | |
3491 | ||
3492 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3493 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3494 | if (!link_name) | |
3495 | return -ENOMEM; | |
3496 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3497 | ||
3498 | memset(&template, 0, sizeof(template)); | |
3499 | template.reg = SND_SOC_NOPM; | |
3500 | template.id = snd_soc_dapm_dai_link; | |
3501 | template.name = link_name; | |
3502 | template.event = snd_soc_dai_link_event; | |
3503 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3504 | SND_SOC_DAPM_PRE_PMD; | |
3505 | ||
30a6a1a4 | 3506 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3507 | |
3508 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3509 | if (!w) { | |
30a6a1a4 | 3510 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3511 | link_name); |
3512 | return -ENOMEM; | |
3513 | } | |
3514 | ||
3515 | w->params = params; | |
3516 | ||
3517 | memset(&routes, 0, sizeof(routes)); | |
3518 | ||
3519 | routes[0].source = source->name; | |
3520 | routes[0].sink = link_name; | |
3521 | routes[1].source = link_name; | |
3522 | routes[1].sink = sink->name; | |
3523 | ||
3524 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3525 | ARRAY_SIZE(routes)); | |
3526 | } | |
3527 | ||
888df395 MB |
3528 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3529 | struct snd_soc_dai *dai) | |
2b97eabc | 3530 | { |
888df395 | 3531 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3532 | struct snd_soc_dapm_widget *w; |
3533 | ||
888df395 MB |
3534 | WARN_ON(dapm->dev != dai->dev); |
3535 | ||
3536 | memset(&template, 0, sizeof(template)); | |
3537 | template.reg = SND_SOC_NOPM; | |
3538 | ||
3539 | if (dai->driver->playback.stream_name) { | |
4616274d | 3540 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3541 | template.name = dai->driver->playback.stream_name; |
3542 | template.sname = dai->driver->playback.stream_name; | |
3543 | ||
30a6a1a4 | 3544 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3545 | template.name); |
3546 | ||
3547 | w = snd_soc_dapm_new_control(dapm, &template); | |
3548 | if (!w) { | |
30a6a1a4 | 3549 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3550 | dai->driver->playback.stream_name); |
298402a3 | 3551 | return -ENOMEM; |
888df395 MB |
3552 | } |
3553 | ||
3554 | w->priv = dai; | |
3555 | dai->playback_widget = w; | |
3556 | } | |
3557 | ||
3558 | if (dai->driver->capture.stream_name) { | |
4616274d | 3559 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3560 | template.name = dai->driver->capture.stream_name; |
3561 | template.sname = dai->driver->capture.stream_name; | |
3562 | ||
30a6a1a4 | 3563 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3564 | template.name); |
3565 | ||
3566 | w = snd_soc_dapm_new_control(dapm, &template); | |
3567 | if (!w) { | |
30a6a1a4 | 3568 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3569 | dai->driver->capture.stream_name); |
298402a3 | 3570 | return -ENOMEM; |
888df395 MB |
3571 | } |
3572 | ||
3573 | w->priv = dai; | |
3574 | dai->capture_widget = w; | |
3575 | } | |
3576 | ||
3577 | return 0; | |
3578 | } | |
3579 | ||
3580 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3581 | { | |
3582 | struct snd_soc_dapm_widget *dai_w, *w; | |
3583 | struct snd_soc_dai *dai; | |
888df395 MB |
3584 | |
3585 | /* For each DAI widget... */ | |
3586 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3587 | switch (dai_w->id) { |
3588 | case snd_soc_dapm_dai_in: | |
3589 | case snd_soc_dapm_dai_out: | |
3590 | break; | |
3591 | default: | |
2b97eabc | 3592 | continue; |
4616274d | 3593 | } |
888df395 MB |
3594 | |
3595 | dai = dai_w->priv; | |
3596 | ||
3597 | /* ...find all widgets with the same stream and link them */ | |
3598 | list_for_each_entry(w, &card->widgets, list) { | |
3599 | if (w->dapm != dai_w->dapm) | |
3600 | continue; | |
3601 | ||
4616274d MB |
3602 | switch (w->id) { |
3603 | case snd_soc_dapm_dai_in: | |
3604 | case snd_soc_dapm_dai_out: | |
888df395 | 3605 | continue; |
4616274d MB |
3606 | default: |
3607 | break; | |
3608 | } | |
888df395 | 3609 | |
19c2c5f5 | 3610 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3611 | continue; |
3612 | ||
3613 | if (dai->driver->playback.stream_name && | |
3614 | strstr(w->sname, | |
3615 | dai->driver->playback.stream_name)) { | |
888df395 | 3616 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3617 | dai->playback_widget->name, w->name); |
888df395 | 3618 | |
2553628e LPC |
3619 | snd_soc_dapm_add_path(w->dapm, |
3620 | dai->playback_widget, w, NULL, NULL); | |
888df395 MB |
3621 | } |
3622 | ||
3623 | if (dai->driver->capture.stream_name && | |
3624 | strstr(w->sname, | |
3625 | dai->driver->capture.stream_name)) { | |
888df395 | 3626 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3627 | w->name, dai->capture_widget->name); |
888df395 | 3628 | |
2553628e LPC |
3629 | snd_soc_dapm_add_path(w->dapm, w, |
3630 | dai->capture_widget, NULL, NULL); | |
2b97eabc RP |
3631 | } |
3632 | } | |
3633 | } | |
2b97eabc | 3634 | |
888df395 MB |
3635 | return 0; |
3636 | } | |
64a648c2 | 3637 | |
b893ea5f LG |
3638 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3639 | { | |
3640 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3641 | struct snd_soc_dai *cpu_dai, *codec_dai; | |
3642 | struct snd_soc_dapm_route r; | |
3643 | int i; | |
3644 | ||
3645 | memset(&r, 0, sizeof(r)); | |
3646 | ||
3647 | /* for each BE DAI link... */ | |
3648 | for (i = 0; i < card->num_rtd; i++) { | |
3649 | rtd = &card->rtd[i]; | |
3650 | cpu_dai = rtd->cpu_dai; | |
3651 | codec_dai = rtd->codec_dai; | |
3652 | ||
3653 | /* dynamic FE links have no fixed DAI mapping */ | |
3654 | if (rtd->dai_link->dynamic) | |
3655 | continue; | |
3656 | ||
3657 | /* there is no point in connecting BE DAI links with dummies */ | |
3658 | if (snd_soc_dai_is_dummy(codec_dai) || | |
3659 | snd_soc_dai_is_dummy(cpu_dai)) | |
3660 | continue; | |
3661 | ||
3662 | /* connect BE DAI playback if widgets are valid */ | |
3663 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
3664 | r.source = cpu_dai->playback_widget->name; | |
3665 | r.sink = codec_dai->playback_widget->name; | |
3666 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", | |
3667 | cpu_dai->codec->name, r.source, | |
3668 | codec_dai->platform->name, r.sink); | |
3669 | ||
bd23c5b6 | 3670 | snd_soc_dapm_add_route(&card->dapm, &r, true); |
b893ea5f LG |
3671 | } |
3672 | ||
3673 | /* connect BE DAI capture if widgets are valid */ | |
3674 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
3675 | r.source = codec_dai->capture_widget->name; | |
3676 | r.sink = cpu_dai->capture_widget->name; | |
3677 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", | |
3678 | codec_dai->codec->name, r.source, | |
3679 | cpu_dai->platform->name, r.sink); | |
3680 | ||
bd23c5b6 | 3681 | snd_soc_dapm_add_route(&card->dapm, &r, true); |
b893ea5f LG |
3682 | } |
3683 | ||
3684 | } | |
3685 | } | |
3686 | ||
d9b0951b LG |
3687 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3688 | int event) | |
2b97eabc | 3689 | { |
7bd3a6f3 | 3690 | |
d9b0951b LG |
3691 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3692 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3693 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3694 | |
d9b0951b LG |
3695 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3696 | w_cpu = cpu_dai->playback_widget; | |
3697 | w_codec = codec_dai->playback_widget; | |
3698 | } else { | |
3699 | w_cpu = cpu_dai->capture_widget; | |
3700 | w_codec = codec_dai->capture_widget; | |
3701 | } | |
2b97eabc | 3702 | |
d9b0951b | 3703 | if (w_cpu) { |
fe360685 | 3704 | |
d9b0951b LG |
3705 | dapm_mark_dirty(w_cpu, "stream event"); |
3706 | ||
3707 | switch (event) { | |
3708 | case SND_SOC_DAPM_STREAM_START: | |
3709 | w_cpu->active = 1; | |
3710 | break; | |
3711 | case SND_SOC_DAPM_STREAM_STOP: | |
3712 | w_cpu->active = 0; | |
3713 | break; | |
3714 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3715 | case SND_SOC_DAPM_STREAM_RESUME: | |
3716 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3717 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3718 | break; | |
3719 | } | |
3720 | } | |
3721 | ||
3722 | if (w_codec) { | |
3723 | ||
3724 | dapm_mark_dirty(w_codec, "stream event"); | |
3725 | ||
3726 | switch (event) { | |
3727 | case SND_SOC_DAPM_STREAM_START: | |
3728 | w_codec->active = 1; | |
3729 | break; | |
3730 | case SND_SOC_DAPM_STREAM_STOP: | |
3731 | w_codec->active = 0; | |
3732 | break; | |
3733 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3734 | case SND_SOC_DAPM_STREAM_RESUME: | |
3735 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3736 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3737 | break; | |
3738 | } | |
2b97eabc | 3739 | } |
2b97eabc | 3740 | |
95dd5cd6 | 3741 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3742 | } |
3743 | ||
3744 | /** | |
3745 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3746 | * @rtd: PCM runtime data | |
3747 | * @stream: stream name | |
3748 | * @event: stream event | |
3749 | * | |
3750 | * Sends a stream event to the dapm core. The core then makes any | |
3751 | * necessary widget power changes. | |
3752 | * | |
3753 | * Returns 0 for success else error. | |
3754 | */ | |
d9b0951b LG |
3755 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3756 | int event) | |
ce6120cc | 3757 | { |
a73fb2df | 3758 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3759 | |
3cd04343 | 3760 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3761 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3762 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3763 | } |
2b97eabc | 3764 | |
11391100 CK |
3765 | /** |
3766 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3767 | * @dapm: DAPM context | |
3768 | * @pin: pin name | |
3769 | * | |
3770 | * Enables input/output pin and its parents or children widgets iff there is | |
3771 | * a valid audio route and active audio stream. | |
3772 | * | |
3773 | * Requires external locking. | |
3774 | * | |
3775 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3776 | * do any widget power switching. | |
3777 | */ | |
3778 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3779 | const char *pin) | |
3780 | { | |
3781 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3782 | } | |
3783 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3784 | ||
2b97eabc | 3785 | /** |
a5302181 | 3786 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3787 | * @dapm: DAPM context |
a5302181 | 3788 | * @pin: pin name |
2b97eabc | 3789 | * |
74b8f955 | 3790 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3791 | * a valid audio route and active audio stream. |
11391100 | 3792 | * |
a5302181 LG |
3793 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3794 | * do any widget power switching. | |
2b97eabc | 3795 | */ |
ce6120cc | 3796 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3797 | { |
11391100 CK |
3798 | int ret; |
3799 | ||
3800 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3801 | ||
3802 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3803 | ||
3804 | mutex_unlock(&dapm->card->dapm_mutex); | |
3805 | ||
3806 | return ret; | |
a5302181 LG |
3807 | } |
3808 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3809 | |
da34183e | 3810 | /** |
11391100 | 3811 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3812 | * @dapm: DAPM context |
da34183e MB |
3813 | * @pin: pin name |
3814 | * | |
3815 | * Enables input/output pin regardless of any other state. This is | |
3816 | * intended for use with microphone bias supplies used in microphone | |
3817 | * jack detection. | |
3818 | * | |
11391100 CK |
3819 | * Requires external locking. |
3820 | * | |
da34183e MB |
3821 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3822 | * do any widget power switching. | |
3823 | */ | |
11391100 CK |
3824 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3825 | const char *pin) | |
da34183e | 3826 | { |
91a5fca4 | 3827 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3828 | |
91a5fca4 | 3829 | if (!w) { |
30a6a1a4 | 3830 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3831 | return -EINVAL; |
0d86733c MB |
3832 | } |
3833 | ||
30a6a1a4 | 3834 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3835 | w->connected = 1; |
3836 | w->force = 1; | |
75c1f891 | 3837 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3838 | |
91a5fca4 | 3839 | return 0; |
da34183e | 3840 | } |
11391100 CK |
3841 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3842 | ||
3843 | /** | |
3844 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3845 | * @dapm: DAPM context | |
3846 | * @pin: pin name | |
3847 | * | |
3848 | * Enables input/output pin regardless of any other state. This is | |
3849 | * intended for use with microphone bias supplies used in microphone | |
3850 | * jack detection. | |
3851 | * | |
3852 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3853 | * do any widget power switching. | |
3854 | */ | |
3855 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3856 | const char *pin) | |
3857 | { | |
3858 | int ret; | |
3859 | ||
3860 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3861 | ||
3862 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
3863 | ||
3864 | mutex_unlock(&dapm->card->dapm_mutex); | |
3865 | ||
3866 | return ret; | |
3867 | } | |
da34183e MB |
3868 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
3869 | ||
11391100 CK |
3870 | /** |
3871 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
3872 | * @dapm: DAPM context | |
3873 | * @pin: pin name | |
3874 | * | |
3875 | * Disables input/output pin and its parents or children widgets. | |
3876 | * | |
3877 | * Requires external locking. | |
3878 | * | |
3879 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3880 | * do any widget power switching. | |
3881 | */ | |
3882 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3883 | const char *pin) | |
3884 | { | |
3885 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3886 | } | |
3887 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
3888 | ||
a5302181 LG |
3889 | /** |
3890 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3891 | * @dapm: DAPM context |
a5302181 LG |
3892 | * @pin: pin name |
3893 | * | |
74b8f955 | 3894 | * Disables input/output pin and its parents or children widgets. |
11391100 | 3895 | * |
a5302181 LG |
3896 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3897 | * do any widget power switching. | |
3898 | */ | |
ce6120cc LG |
3899 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3900 | const char *pin) | |
a5302181 | 3901 | { |
11391100 CK |
3902 | int ret; |
3903 | ||
3904 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3905 | ||
3906 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3907 | ||
3908 | mutex_unlock(&dapm->card->dapm_mutex); | |
3909 | ||
3910 | return ret; | |
2b97eabc | 3911 | } |
a5302181 | 3912 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3913 | |
11391100 CK |
3914 | /** |
3915 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
3916 | * @dapm: DAPM context | |
3917 | * @pin: pin name | |
3918 | * | |
3919 | * Marks the specified pin as being not connected, disabling it along | |
3920 | * any parent or child widgets. At present this is identical to | |
3921 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3922 | * additional things such as disabling controls which only affect | |
3923 | * paths through the pin. | |
3924 | * | |
3925 | * Requires external locking. | |
3926 | * | |
3927 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3928 | * do any widget power switching. | |
3929 | */ | |
3930 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3931 | const char *pin) | |
3932 | { | |
3933 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
3934 | } | |
3935 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
3936 | ||
5817b52a MB |
3937 | /** |
3938 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3939 | * @dapm: DAPM context |
5817b52a MB |
3940 | * @pin: pin name |
3941 | * | |
3942 | * Marks the specified pin as being not connected, disabling it along | |
3943 | * any parent or child widgets. At present this is identical to | |
3944 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3945 | * additional things such as disabling controls which only affect | |
3946 | * paths through the pin. | |
3947 | * | |
3948 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3949 | * do any widget power switching. | |
3950 | */ | |
ce6120cc | 3951 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3952 | { |
11391100 CK |
3953 | int ret; |
3954 | ||
3955 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3956 | ||
3957 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
3958 | ||
3959 | mutex_unlock(&dapm->card->dapm_mutex); | |
3960 | ||
3961 | return ret; | |
5817b52a MB |
3962 | } |
3963 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3964 | ||
eeec12bf | 3965 | /** |
a5302181 | 3966 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3967 | * @dapm: DAPM context |
a5302181 | 3968 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3969 | * |
a5302181 | 3970 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3971 | * |
a5302181 | 3972 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3973 | */ |
ce6120cc LG |
3974 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3975 | const char *pin) | |
eeec12bf | 3976 | { |
91a5fca4 | 3977 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3978 | |
91a5fca4 LPC |
3979 | if (w) |
3980 | return w->connected; | |
a68b38ad | 3981 | |
eeec12bf GG |
3982 | return 0; |
3983 | } | |
a5302181 | 3984 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3985 | |
1547aba9 MB |
3986 | /** |
3987 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3988 | * @dapm: DAPM context |
1547aba9 MB |
3989 | * @pin: audio signal pin endpoint (or start point) |
3990 | * | |
3991 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3992 | * system is disabled a path between two endpoints flagged as ignoring | |
3993 | * suspend will not be disabled. The path must already be enabled via | |
3994 | * normal means at suspend time, it will not be turned on if it was not | |
3995 | * already enabled. | |
3996 | */ | |
ce6120cc LG |
3997 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3998 | const char *pin) | |
1547aba9 | 3999 | { |
91a5fca4 | 4000 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4001 | |
91a5fca4 | 4002 | if (!w) { |
30a6a1a4 | 4003 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4004 | return -EINVAL; |
1547aba9 MB |
4005 | } |
4006 | ||
91a5fca4 LPC |
4007 | w->ignore_suspend = 1; |
4008 | ||
4009 | return 0; | |
1547aba9 MB |
4010 | } |
4011 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4012 | ||
1633281b SW |
4013 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
4014 | struct snd_soc_dapm_widget *w) | |
4015 | { | |
4016 | struct snd_soc_dapm_path *p; | |
4017 | ||
4018 | list_for_each_entry(p, &card->paths, list) { | |
4019 | if ((p->source == w) || (p->sink == w)) { | |
4020 | dev_dbg(card->dev, | |
4021 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
4022 | p->source->name, p->source->id, p->source->dapm, | |
4023 | p->sink->name, p->sink->id, p->sink->dapm); | |
4024 | ||
4025 | /* Connected to something other than the codec */ | |
4026 | if (p->source->dapm != p->sink->dapm) | |
4027 | return true; | |
4028 | /* | |
4029 | * Loopback connection from codec external pin to | |
4030 | * codec external pin | |
4031 | */ | |
4032 | if (p->sink->id == snd_soc_dapm_input) { | |
4033 | switch (p->source->id) { | |
4034 | case snd_soc_dapm_output: | |
4035 | case snd_soc_dapm_micbias: | |
4036 | return true; | |
4037 | default: | |
4038 | break; | |
4039 | } | |
4040 | } | |
4041 | } | |
4042 | } | |
4043 | ||
4044 | return false; | |
4045 | } | |
4046 | ||
4047 | /** | |
4048 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
4049 | * @codec: The codec whose pins should be processed | |
4050 | * | |
4051 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
4052 | * which are unused. Pins are used if they are connected externally to the | |
4053 | * codec, whether that be to some other device, or a loop-back connection to | |
4054 | * the codec itself. | |
4055 | */ | |
4056 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
4057 | { | |
4058 | struct snd_soc_card *card = codec->card; | |
4059 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
4060 | struct snd_soc_dapm_widget *w; | |
4061 | ||
30a6a1a4 | 4062 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
4063 | &card->dapm, &codec->dapm); |
4064 | ||
4065 | list_for_each_entry(w, &card->widgets, list) { | |
4066 | if (w->dapm != dapm) | |
4067 | continue; | |
4068 | switch (w->id) { | |
4069 | case snd_soc_dapm_input: | |
4070 | case snd_soc_dapm_output: | |
4071 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 4072 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
4073 | w->name); |
4074 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 4075 | dev_dbg(codec->dev, |
1633281b SW |
4076 | "... Not in map; disabling\n"); |
4077 | snd_soc_dapm_nc_pin(dapm, w->name); | |
4078 | } | |
4079 | break; | |
4080 | default: | |
4081 | break; | |
4082 | } | |
4083 | } | |
4084 | } | |
4085 | ||
2b97eabc RP |
4086 | /** |
4087 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4088 | * @dapm: DAPM context |
2b97eabc RP |
4089 | * |
4090 | * Free all dapm widgets and resources. | |
4091 | */ | |
ce6120cc | 4092 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4093 | { |
ce6120cc | 4094 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 4095 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4096 | dapm_free_widgets(dapm); |
7be31be8 | 4097 | list_del(&dapm->list); |
2b97eabc RP |
4098 | } |
4099 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4100 | ||
ce6120cc | 4101 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 4102 | { |
01005a72 | 4103 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4104 | struct snd_soc_dapm_widget *w; |
4105 | LIST_HEAD(down_list); | |
4106 | int powerdown = 0; | |
4107 | ||
01005a72 LG |
4108 | mutex_lock(&card->dapm_mutex); |
4109 | ||
97c866de JN |
4110 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4111 | if (w->dapm != dapm) | |
4112 | continue; | |
51737470 | 4113 | if (w->power) { |
828a842f | 4114 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4115 | w->power = 0; |
51737470 MB |
4116 | powerdown = 1; |
4117 | } | |
4118 | } | |
4119 | ||
4120 | /* If there were no widgets to power down we're already in | |
4121 | * standby. | |
4122 | */ | |
4123 | if (powerdown) { | |
7679e42e MB |
4124 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4125 | snd_soc_dapm_set_bias_level(dapm, | |
4126 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4127 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4128 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4129 | snd_soc_dapm_set_bias_level(dapm, | |
4130 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4131 | } |
01005a72 LG |
4132 | |
4133 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4134 | } |
4135 | ||
4136 | /* | |
4137 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4138 | */ | |
4139 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4140 | { | |
4141 | struct snd_soc_codec *codec; | |
4142 | ||
445632ad | 4143 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 4144 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
4145 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
4146 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
4147 | SND_SOC_BIAS_OFF); | |
ce6120cc | 4148 | } |
51737470 MB |
4149 | } |
4150 | ||
2b97eabc | 4151 | /* Module information */ |
d331124d | 4152 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4153 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4154 | MODULE_LICENSE("GPL"); |