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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
2b97eabc RP |
50 | /* dapm power sequences - make this per codec in the future */ |
51 | static int dapm_up_seq[] = { | |
38357ab2 MB |
52 | [snd_soc_dapm_pre] = 0, |
53 | [snd_soc_dapm_supply] = 1, | |
62ea874a | 54 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 55 | [snd_soc_dapm_clock_supply] = 1, |
38357ab2 | 56 | [snd_soc_dapm_micbias] = 2, |
c74184ed | 57 | [snd_soc_dapm_dai_link] = 2, |
4616274d MB |
58 | [snd_soc_dapm_dai_in] = 3, |
59 | [snd_soc_dapm_dai_out] = 3, | |
010ff262 MB |
60 | [snd_soc_dapm_aif_in] = 3, |
61 | [snd_soc_dapm_aif_out] = 3, | |
62 | [snd_soc_dapm_mic] = 4, | |
63 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 64 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
65 | [snd_soc_dapm_value_mux] = 5, |
66 | [snd_soc_dapm_dac] = 6, | |
efc77e36 | 67 | [snd_soc_dapm_switch] = 7, |
010ff262 MB |
68 | [snd_soc_dapm_mixer] = 7, |
69 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
70 | [snd_soc_dapm_pga] = 8, | |
71 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 72 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
73 | [snd_soc_dapm_hp] = 10, |
74 | [snd_soc_dapm_spk] = 10, | |
7e1f7c8a | 75 | [snd_soc_dapm_line] = 10, |
010ff262 | 76 | [snd_soc_dapm_post] = 11, |
2b97eabc | 77 | }; |
ca9c1aae | 78 | |
2b97eabc | 79 | static int dapm_down_seq[] = { |
38357ab2 MB |
80 | [snd_soc_dapm_pre] = 0, |
81 | [snd_soc_dapm_adc] = 1, | |
82 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 83 | [snd_soc_dapm_spk] = 2, |
7e1f7c8a | 84 | [snd_soc_dapm_line] = 2, |
d88429a6 | 85 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 | 86 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 87 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 88 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
89 | [snd_soc_dapm_mixer] = 5, |
90 | [snd_soc_dapm_dac] = 6, | |
91 | [snd_soc_dapm_mic] = 7, | |
92 | [snd_soc_dapm_micbias] = 8, | |
93 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 94 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 95 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
96 | [snd_soc_dapm_aif_in] = 10, |
97 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
98 | [snd_soc_dapm_dai_in] = 10, |
99 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 100 | [snd_soc_dapm_dai_link] = 11, |
d7e7eb91 | 101 | [snd_soc_dapm_clock_supply] = 12, |
c74184ed MB |
102 | [snd_soc_dapm_regulator_supply] = 12, |
103 | [snd_soc_dapm_supply] = 12, | |
104 | [snd_soc_dapm_post] = 13, | |
2b97eabc RP |
105 | }; |
106 | ||
12ef193d | 107 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
108 | { |
109 | if (pop_time) | |
110 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
111 | } | |
112 | ||
fd8d3bc0 | 113 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
114 | { |
115 | va_list args; | |
fd8d3bc0 | 116 | char *buf; |
15e4c72f | 117 | |
fd8d3bc0 JN |
118 | if (!pop_time) |
119 | return; | |
15e4c72f | 120 | |
fd8d3bc0 JN |
121 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
122 | if (buf == NULL) | |
123 | return; | |
15e4c72f | 124 | |
fd8d3bc0 JN |
125 | va_start(args, fmt); |
126 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 127 | dev_info(dev, "%s", buf); |
15e4c72f | 128 | va_end(args); |
fd8d3bc0 JN |
129 | |
130 | kfree(buf); | |
15e4c72f MB |
131 | } |
132 | ||
db432b41 MB |
133 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
134 | { | |
135 | return !list_empty(&w->dirty); | |
136 | } | |
137 | ||
25c77c5f | 138 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 139 | { |
75c1f891 MB |
140 | if (!dapm_dirty_widget(w)) { |
141 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
142 | w->name, reason); | |
db432b41 | 143 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 144 | } |
db432b41 | 145 | } |
25c77c5f | 146 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 147 | |
e2d32ff6 MB |
148 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
149 | { | |
150 | struct snd_soc_card *card = dapm->card; | |
151 | struct snd_soc_dapm_widget *w; | |
152 | ||
153 | mutex_lock(&card->dapm_mutex); | |
154 | ||
155 | list_for_each_entry(w, &card->widgets, list) { | |
156 | switch (w->id) { | |
157 | case snd_soc_dapm_input: | |
158 | case snd_soc_dapm_output: | |
159 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
160 | break; | |
161 | default: | |
162 | break; | |
163 | } | |
164 | } | |
165 | ||
166 | mutex_unlock(&card->dapm_mutex); | |
167 | } | |
168 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
169 | ||
2b97eabc | 170 | /* create a new dapm widget */ |
88cb4290 | 171 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
172 | const struct snd_soc_dapm_widget *_widget) |
173 | { | |
88cb4290 | 174 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
175 | } |
176 | ||
e84357f7 | 177 | struct dapm_kcontrol_data { |
cf7c1de2 | 178 | unsigned int value; |
5106b92f | 179 | struct list_head paths; |
e84357f7 LPC |
180 | struct snd_soc_dapm_widget_list wlist; |
181 | }; | |
182 | ||
183 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
184 | struct snd_kcontrol *kcontrol) | |
185 | { | |
186 | struct dapm_kcontrol_data *data; | |
187 | ||
188 | data = kzalloc(sizeof(*data) + sizeof(widget), GFP_KERNEL); | |
189 | if (!data) { | |
190 | dev_err(widget->dapm->dev, | |
191 | "ASoC: can't allocate kcontrol data for %s\n", | |
192 | widget->name); | |
193 | return -ENOMEM; | |
194 | } | |
195 | ||
196 | data->wlist.widgets[0] = widget; | |
197 | data->wlist.num_widgets = 1; | |
5106b92f | 198 | INIT_LIST_HEAD(&data->paths); |
e84357f7 LPC |
199 | |
200 | kcontrol->private_data = data; | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
205 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
206 | { | |
207 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
208 | kfree(data); | |
209 | } | |
210 | ||
211 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
212 | const struct snd_kcontrol *kcontrol) | |
213 | { | |
214 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
215 | ||
216 | return &data->wlist; | |
217 | } | |
218 | ||
219 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
220 | struct snd_soc_dapm_widget *widget) | |
221 | { | |
222 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
223 | struct dapm_kcontrol_data *new_data; | |
224 | unsigned int n = data->wlist.num_widgets + 1; | |
225 | ||
226 | new_data = krealloc(data, sizeof(*data) + sizeof(widget) * n, | |
227 | GFP_KERNEL); | |
228 | if (!data) | |
229 | return -ENOMEM; | |
230 | ||
231 | data->wlist.widgets[n - 1] = widget; | |
232 | data->wlist.num_widgets = n; | |
233 | ||
234 | kcontrol->private_data = data; | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
5106b92f LPC |
239 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
240 | struct snd_soc_dapm_path *path) | |
241 | { | |
242 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
243 | ||
244 | list_add_tail(&path->list_kcontrol, &data->paths); | |
245 | } | |
246 | ||
247 | static struct list_head *dapm_kcontrol_get_path_list( | |
248 | const struct snd_kcontrol *kcontrol) | |
249 | { | |
250 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
251 | ||
252 | return &data->paths; | |
253 | } | |
254 | ||
255 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
256 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
257 | list_kcontrol) | |
258 | ||
cf7c1de2 LPC |
259 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
260 | { | |
261 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
262 | ||
263 | return data->value; | |
264 | } | |
265 | ||
266 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
267 | unsigned int value) | |
268 | { | |
269 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
270 | ||
271 | if (data->value == value) | |
272 | return false; | |
273 | ||
274 | data->value = value; | |
275 | ||
276 | return true; | |
277 | } | |
278 | ||
eee5d7f9 LPC |
279 | /** |
280 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
281 | * @kcontrol: The kcontrol | |
282 | */ | |
283 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
284 | { | |
e84357f7 | 285 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
286 | } |
287 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
288 | ||
6c120e19 LG |
289 | static void dapm_reset(struct snd_soc_card *card) |
290 | { | |
291 | struct snd_soc_dapm_widget *w; | |
292 | ||
293 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
294 | ||
295 | list_for_each_entry(w, &card->widgets, list) { | |
296 | w->power_checked = false; | |
297 | w->inputs = -1; | |
298 | w->outputs = -1; | |
299 | } | |
300 | } | |
301 | ||
0445bdf4 LG |
302 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
303 | { | |
304 | if (w->codec) | |
305 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
306 | else if (w->platform) |
307 | return snd_soc_platform_read(w->platform, reg); | |
308 | ||
30a6a1a4 | 309 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 310 | return -1; |
0445bdf4 LG |
311 | } |
312 | ||
313 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
314 | { | |
315 | if (w->codec) | |
316 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
317 | else if (w->platform) |
318 | return snd_soc_platform_write(w->platform, reg, val); | |
319 | ||
30a6a1a4 | 320 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 321 | return -1; |
0445bdf4 LG |
322 | } |
323 | ||
49575fb5 LG |
324 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
325 | { | |
e06ab3b8 | 326 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
327 | mutex_lock(&w->codec->mutex); |
328 | else if (w->platform) | |
329 | mutex_lock(&w->platform->mutex); | |
330 | } | |
331 | ||
332 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
333 | { | |
e06ab3b8 | 334 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
335 | mutex_unlock(&w->codec->mutex); |
336 | else if (w->platform) | |
337 | mutex_unlock(&w->platform->mutex); | |
338 | } | |
339 | ||
340 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
341 | unsigned short reg, unsigned int mask, unsigned int value) |
342 | { | |
8a713da8 | 343 | bool change; |
0445bdf4 LG |
344 | unsigned int old, new; |
345 | int ret; | |
346 | ||
8a713da8 MB |
347 | if (w->codec && w->codec->using_regmap) { |
348 | ret = regmap_update_bits_check(w->codec->control_data, | |
349 | reg, mask, value, &change); | |
350 | if (ret != 0) | |
351 | return ret; | |
352 | } else { | |
49575fb5 | 353 | soc_widget_lock(w); |
8a713da8 | 354 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
355 | if (ret < 0) { |
356 | soc_widget_unlock(w); | |
0445bdf4 | 357 | return ret; |
49575fb5 | 358 | } |
8a713da8 MB |
359 | |
360 | old = ret; | |
361 | new = (old & ~mask) | (value & mask); | |
362 | change = old != new; | |
363 | if (change) { | |
364 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
365 | if (ret < 0) { |
366 | soc_widget_unlock(w); | |
8a713da8 | 367 | return ret; |
49575fb5 | 368 | } |
8a713da8 | 369 | } |
49575fb5 | 370 | soc_widget_unlock(w); |
0445bdf4 LG |
371 | } |
372 | ||
373 | return change; | |
374 | } | |
375 | ||
452c5eaa MB |
376 | /** |
377 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 378 | * @dapm: DAPM context |
452c5eaa MB |
379 | * @level: level to configure |
380 | * | |
381 | * Configure the bias (power) levels for the SoC audio device. | |
382 | * | |
383 | * Returns 0 for success else error. | |
384 | */ | |
ed5a4c47 | 385 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 386 | enum snd_soc_bias_level level) |
452c5eaa | 387 | { |
ed5a4c47 | 388 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
389 | int ret = 0; |
390 | ||
84e90930 MB |
391 | trace_snd_soc_bias_level_start(card, level); |
392 | ||
f0fba2ad | 393 | if (card && card->set_bias_level) |
d4c6005f | 394 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
395 | if (ret != 0) |
396 | goto out; | |
397 | ||
cc4c670a MB |
398 | if (dapm->codec) { |
399 | if (dapm->codec->driver->set_bias_level) | |
400 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
401 | level); | |
d8c3bb91 MB |
402 | else |
403 | dapm->bias_level = level; | |
4e872a46 | 404 | } else if (!card || dapm != &card->dapm) { |
4123128e | 405 | dapm->bias_level = level; |
4e872a46 | 406 | } |
4123128e | 407 | |
171ec6b0 MB |
408 | if (ret != 0) |
409 | goto out; | |
410 | ||
411 | if (card && card->set_bias_level_post) | |
d4c6005f | 412 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 413 | out: |
84e90930 MB |
414 | trace_snd_soc_bias_level_done(card, level); |
415 | ||
452c5eaa MB |
416 | return ret; |
417 | } | |
418 | ||
2b97eabc RP |
419 | /* set up initial codec paths */ |
420 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
421 | struct snd_soc_dapm_path *p, int i) | |
422 | { | |
423 | switch (w->id) { | |
424 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
425 | case snd_soc_dapm_mixer: |
426 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 427 | int val; |
4eaa9819 | 428 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 429 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
430 | unsigned int reg = mc->reg; |
431 | unsigned int shift = mc->shift; | |
4eaa9819 | 432 | int max = mc->max; |
815ecf8d JS |
433 | unsigned int mask = (1 << fls(max)) - 1; |
434 | unsigned int invert = mc->invert; | |
2b97eabc | 435 | |
0445bdf4 | 436 | val = soc_widget_read(w, reg); |
2b97eabc | 437 | val = (val >> shift) & mask; |
32fee7af BT |
438 | if (invert) |
439 | val = max - val; | |
2b97eabc | 440 | |
32fee7af | 441 | p->connect = !!val; |
2b97eabc RP |
442 | } |
443 | break; | |
444 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
445 | struct soc_enum *e = (struct soc_enum *) |
446 | w->kcontrol_news[i].private_value; | |
86767b7d | 447 | int val, item; |
2b97eabc | 448 | |
0445bdf4 | 449 | val = soc_widget_read(w, e->reg); |
86767b7d | 450 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 451 | |
58fee775 LPC |
452 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
453 | p->connect = 1; | |
454 | else | |
455 | p->connect = 0; | |
2b97eabc RP |
456 | } |
457 | break; | |
24ff33ac | 458 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
459 | struct soc_enum *e = (struct soc_enum *) |
460 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
461 | |
462 | p->connect = 0; | |
463 | /* since a virtual mux has no backing registers to | |
464 | * decide which path to connect, it will try to match | |
465 | * with the first enumeration. This is to ensure | |
466 | * that the default mux choice (the first) will be | |
467 | * correctly powered up during initialization. | |
468 | */ | |
469 | if (!strcmp(p->name, e->texts[0])) | |
470 | p->connect = 1; | |
471 | } | |
472 | break; | |
2e72f8e3 | 473 | case snd_soc_dapm_value_mux: { |
74155556 | 474 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 475 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
476 | int val, item; |
477 | ||
0445bdf4 | 478 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
479 | val = (val >> e->shift_l) & e->mask; |
480 | for (item = 0; item < e->max; item++) { | |
481 | if (val == e->values[item]) | |
482 | break; | |
483 | } | |
484 | ||
58fee775 LPC |
485 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
486 | p->connect = 1; | |
487 | else | |
488 | p->connect = 0; | |
2e72f8e3 PU |
489 | } |
490 | break; | |
56563100 | 491 | /* does not affect routing - always connected */ |
2b97eabc | 492 | case snd_soc_dapm_pga: |
d88429a6 | 493 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
494 | case snd_soc_dapm_output: |
495 | case snd_soc_dapm_adc: | |
496 | case snd_soc_dapm_input: | |
1ab97c8c | 497 | case snd_soc_dapm_siggen: |
2b97eabc RP |
498 | case snd_soc_dapm_dac: |
499 | case snd_soc_dapm_micbias: | |
500 | case snd_soc_dapm_vmid: | |
246d0a17 | 501 | case snd_soc_dapm_supply: |
62ea874a | 502 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 503 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
504 | case snd_soc_dapm_aif_in: |
505 | case snd_soc_dapm_aif_out: | |
4616274d MB |
506 | case snd_soc_dapm_dai_in: |
507 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
508 | case snd_soc_dapm_hp: |
509 | case snd_soc_dapm_mic: | |
510 | case snd_soc_dapm_spk: | |
511 | case snd_soc_dapm_line: | |
c74184ed | 512 | case snd_soc_dapm_dai_link: |
56563100 MB |
513 | p->connect = 1; |
514 | break; | |
515 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
516 | case snd_soc_dapm_pre: |
517 | case snd_soc_dapm_post: | |
518 | p->connect = 0; | |
519 | break; | |
520 | } | |
521 | } | |
522 | ||
74b8f955 | 523 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 524 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
525 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
526 | struct snd_soc_dapm_path *path, const char *control_name, | |
527 | const struct snd_kcontrol_new *kcontrol) | |
528 | { | |
529 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
530 | int i; | |
531 | ||
f8ba0b7b | 532 | for (i = 0; i < e->max; i++) { |
2b97eabc | 533 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 534 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
535 | list_add(&path->list_sink, &dest->sources); |
536 | list_add(&path->list_source, &src->sinks); | |
537 | path->name = (char*)e->texts[i]; | |
538 | dapm_set_path_status(dest, path, 0); | |
539 | return 0; | |
540 | } | |
541 | } | |
542 | ||
543 | return -ENODEV; | |
544 | } | |
545 | ||
74b8f955 | 546 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 547 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
548 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
549 | struct snd_soc_dapm_path *path, const char *control_name) | |
550 | { | |
551 | int i; | |
552 | ||
553 | /* search for mixer kcontrol */ | |
554 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 555 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 556 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
557 | list_add(&path->list_sink, &dest->sources); |
558 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 559 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
560 | dapm_set_path_status(dest, path, i); |
561 | return 0; | |
562 | } | |
563 | } | |
564 | return -ENODEV; | |
565 | } | |
566 | ||
af46800b | 567 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 568 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
569 | const struct snd_kcontrol_new *kcontrol_new, |
570 | struct snd_kcontrol **kcontrol) | |
571 | { | |
572 | struct snd_soc_dapm_widget *w; | |
573 | int i; | |
574 | ||
575 | *kcontrol = NULL; | |
576 | ||
577 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
578 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
579 | continue; | |
af46800b SW |
580 | for (i = 0; i < w->num_kcontrols; i++) { |
581 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
582 | if (w->kcontrols) | |
583 | *kcontrol = w->kcontrols[i]; | |
584 | return 1; | |
585 | } | |
586 | } | |
587 | } | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
85762e71 SW |
592 | /* |
593 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
594 | * create it. Either way, add the widget into the control's widget list | |
595 | */ | |
596 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
597 | int kci, struct snd_soc_dapm_path *path) | |
2b97eabc | 598 | { |
4b80b8c2 | 599 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 600 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 601 | const char *prefix; |
85762e71 SW |
602 | size_t prefix_len; |
603 | int shared; | |
604 | struct snd_kcontrol *kcontrol; | |
85762e71 | 605 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
606 | char *long_name; |
607 | const char *name; | |
608 | int ret; | |
efb7ac3f MB |
609 | |
610 | if (dapm->codec) | |
611 | prefix = dapm->codec->name_prefix; | |
612 | else | |
613 | prefix = NULL; | |
2b97eabc | 614 | |
3e5ff4df MB |
615 | if (prefix) |
616 | prefix_len = strlen(prefix) + 1; | |
617 | else | |
618 | prefix_len = 0; | |
619 | ||
85762e71 SW |
620 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
621 | &kcontrol); | |
2b97eabc | 622 | |
85762e71 SW |
623 | if (!kcontrol) { |
624 | if (shared) { | |
625 | wname_in_long_name = false; | |
626 | kcname_in_long_name = true; | |
627 | } else { | |
628 | switch (w->id) { | |
629 | case snd_soc_dapm_switch: | |
630 | case snd_soc_dapm_mixer: | |
631 | wname_in_long_name = true; | |
632 | kcname_in_long_name = true; | |
633 | break; | |
634 | case snd_soc_dapm_mixer_named_ctl: | |
635 | wname_in_long_name = false; | |
636 | kcname_in_long_name = true; | |
637 | break; | |
638 | case snd_soc_dapm_mux: | |
639 | case snd_soc_dapm_virt_mux: | |
640 | case snd_soc_dapm_value_mux: | |
641 | wname_in_long_name = true; | |
642 | kcname_in_long_name = false; | |
643 | break; | |
644 | default: | |
85762e71 | 645 | return -EINVAL; |
82cd8764 | 646 | } |
85762e71 SW |
647 | } |
648 | ||
649 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
650 | /* |
651 | * The control will get a prefix from the control | |
652 | * creation process but we're also using the same | |
653 | * prefix for widgets so cut the prefix off the | |
654 | * front of the widget name. | |
ca9c1aae | 655 | */ |
2b581074 | 656 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
657 | w->name + prefix_len, |
658 | w->kcontrol_news[kci].name); | |
e84357f7 | 659 | if (long_name == NULL) |
2b581074 | 660 | return -ENOMEM; |
85762e71 SW |
661 | |
662 | name = long_name; | |
663 | } else if (wname_in_long_name) { | |
664 | long_name = NULL; | |
665 | name = w->name + prefix_len; | |
666 | } else { | |
667 | long_name = NULL; | |
668 | name = w->kcontrol_news[kci].name; | |
669 | } | |
ca9c1aae | 670 | |
e84357f7 | 671 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 672 | prefix); |
6b75bf0c | 673 | kcontrol->private_free = dapm_kcontrol_free; |
656ca9d3 | 674 | kfree(long_name); |
e84357f7 LPC |
675 | |
676 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
677 | if (ret) { | |
678 | snd_ctl_free_one(kcontrol); | |
679 | return ret; | |
680 | } | |
681 | ||
85762e71 SW |
682 | ret = snd_ctl_add(card, kcontrol); |
683 | if (ret < 0) { | |
684 | dev_err(dapm->dev, | |
685 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
686 | w->name, name, ret); | |
85762e71 SW |
687 | return ret; |
688 | } | |
e84357f7 LPC |
689 | } else { |
690 | ret = dapm_kcontrol_add_widget(kcontrol, w); | |
691 | if (ret) | |
692 | return ret; | |
85762e71 | 693 | } |
2b97eabc | 694 | |
85762e71 | 695 | w->kcontrols[kci] = kcontrol; |
5106b92f | 696 | dapm_kcontrol_add_path(kcontrol, path); |
ca9c1aae | 697 | |
85762e71 SW |
698 | return 0; |
699 | } | |
219b93f5 | 700 | |
85762e71 SW |
701 | /* create new dapm mixer control */ |
702 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
703 | { | |
704 | int i, ret; | |
705 | struct snd_soc_dapm_path *path; | |
706 | ||
707 | /* add kcontrol */ | |
708 | for (i = 0; i < w->num_kcontrols; i++) { | |
709 | /* match name */ | |
710 | list_for_each_entry(path, &w->sources, list_sink) { | |
711 | /* mixer/mux paths name must match control name */ | |
712 | if (path->name != (char *)w->kcontrol_news[i].name) | |
713 | continue; | |
714 | ||
715 | if (w->kcontrols[i]) { | |
5106b92f | 716 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 717 | continue; |
2b97eabc | 718 | } |
85762e71 SW |
719 | |
720 | ret = dapm_create_or_share_mixmux_kcontrol(w, i, path); | |
721 | if (ret < 0) | |
722 | return ret; | |
2b97eabc RP |
723 | } |
724 | } | |
85762e71 SW |
725 | |
726 | return 0; | |
2b97eabc RP |
727 | } |
728 | ||
729 | /* create new dapm mux control */ | |
4b80b8c2 | 730 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 731 | { |
4b80b8c2 | 732 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 733 | struct snd_soc_dapm_path *path; |
af46800b | 734 | int ret; |
2b97eabc | 735 | |
af46800b SW |
736 | if (w->num_kcontrols != 1) { |
737 | dev_err(dapm->dev, | |
30a6a1a4 | 738 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 739 | w->name); |
2b97eabc RP |
740 | return -EINVAL; |
741 | } | |
742 | ||
85762e71 SW |
743 | path = list_first_entry(&w->sources, struct snd_soc_dapm_path, |
744 | list_sink); | |
745 | if (!path) { | |
746 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); | |
747 | return -EINVAL; | |
af46800b | 748 | } |
ce6120cc | 749 | |
85762e71 SW |
750 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0, path); |
751 | if (ret < 0) | |
752 | return ret; | |
fad59888 | 753 | |
2b97eabc | 754 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 755 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 756 | |
af46800b | 757 | return 0; |
2b97eabc RP |
758 | } |
759 | ||
760 | /* create new dapm volume control */ | |
4b80b8c2 | 761 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 762 | { |
a6c65736 | 763 | if (w->num_kcontrols) |
f7d41ae8 | 764 | dev_err(w->dapm->dev, |
30a6a1a4 | 765 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 766 | |
a6c65736 | 767 | return 0; |
2b97eabc RP |
768 | } |
769 | ||
770 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
771 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
772 | struct list_head *sink) | |
2b97eabc RP |
773 | { |
774 | struct snd_soc_dapm_path *p; | |
775 | ||
1059ecfa RT |
776 | list_for_each_entry(p, sink, list_source) { |
777 | if (p->walked) { | |
778 | p->walked = 0; | |
779 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
780 | } | |
781 | } | |
2b97eabc RP |
782 | } |
783 | ||
1059ecfa RT |
784 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
785 | struct list_head *source) | |
2b97eabc RP |
786 | { |
787 | struct snd_soc_dapm_path *p; | |
788 | ||
1059ecfa RT |
789 | list_for_each_entry(p, source, list_sink) { |
790 | if (p->walked) { | |
791 | p->walked = 0; | |
792 | dapm_clear_walk_input(dapm, &p->source->sources); | |
793 | } | |
794 | } | |
2b97eabc RP |
795 | } |
796 | ||
1059ecfa | 797 | |
9949788b MB |
798 | /* We implement power down on suspend by checking the power state of |
799 | * the ALSA card - when we are suspending the ALSA state for the card | |
800 | * is set to D3. | |
801 | */ | |
802 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
803 | { | |
12ea2c78 | 804 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 805 | |
f0fba2ad | 806 | switch (level) { |
9949788b MB |
807 | case SNDRV_CTL_POWER_D3hot: |
808 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 809 | if (widget->ignore_suspend) |
30a6a1a4 | 810 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 811 | widget->name); |
1547aba9 | 812 | return widget->ignore_suspend; |
9949788b MB |
813 | default: |
814 | return 1; | |
815 | } | |
816 | } | |
817 | ||
ec2e3031 LG |
818 | /* add widget to list if it's not already in the list */ |
819 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
820 | struct snd_soc_dapm_widget *w) | |
821 | { | |
822 | struct snd_soc_dapm_widget_list *wlist; | |
823 | int wlistsize, wlistentries, i; | |
824 | ||
825 | if (*list == NULL) | |
826 | return -EINVAL; | |
827 | ||
828 | wlist = *list; | |
829 | ||
830 | /* is this widget already in the list */ | |
831 | for (i = 0; i < wlist->num_widgets; i++) { | |
832 | if (wlist->widgets[i] == w) | |
833 | return 0; | |
834 | } | |
835 | ||
836 | /* allocate some new space */ | |
837 | wlistentries = wlist->num_widgets + 1; | |
838 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
839 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
840 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
841 | if (*list == NULL) { | |
30a6a1a4 | 842 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
843 | w->name); |
844 | return -ENOMEM; | |
845 | } | |
846 | wlist = *list; | |
847 | ||
848 | /* insert the widget */ | |
30a6a1a4 | 849 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
850 | w->name, wlist->num_widgets); |
851 | ||
852 | wlist->widgets[wlist->num_widgets] = w; | |
853 | wlist->num_widgets++; | |
854 | return 1; | |
855 | } | |
856 | ||
2b97eabc RP |
857 | /* |
858 | * Recursively check for a completed path to an active or physically connected | |
859 | * output widget. Returns number of complete paths. | |
860 | */ | |
ec2e3031 LG |
861 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
862 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
863 | { |
864 | struct snd_soc_dapm_path *path; | |
865 | int con = 0; | |
866 | ||
024dc078 MB |
867 | if (widget->outputs >= 0) |
868 | return widget->outputs; | |
869 | ||
de02d078 MB |
870 | DAPM_UPDATE_STAT(widget, path_checks); |
871 | ||
62ea874a MB |
872 | switch (widget->id) { |
873 | case snd_soc_dapm_supply: | |
874 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 875 | case snd_soc_dapm_clock_supply: |
246d0a17 | 876 | return 0; |
62ea874a MB |
877 | default: |
878 | break; | |
879 | } | |
246d0a17 | 880 | |
010ff262 MB |
881 | switch (widget->id) { |
882 | case snd_soc_dapm_adc: | |
883 | case snd_soc_dapm_aif_out: | |
4616274d | 884 | case snd_soc_dapm_dai_out: |
024dc078 MB |
885 | if (widget->active) { |
886 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
887 | return widget->outputs; | |
888 | } | |
010ff262 MB |
889 | default: |
890 | break; | |
891 | } | |
2b97eabc RP |
892 | |
893 | if (widget->connected) { | |
894 | /* connected pin ? */ | |
024dc078 MB |
895 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
896 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
897 | return widget->outputs; | |
898 | } | |
2b97eabc RP |
899 | |
900 | /* connected jack or spk ? */ | |
024dc078 MB |
901 | if (widget->id == snd_soc_dapm_hp || |
902 | widget->id == snd_soc_dapm_spk || | |
903 | (widget->id == snd_soc_dapm_line && | |
904 | !list_empty(&widget->sources))) { | |
905 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
906 | return widget->outputs; | |
907 | } | |
2b97eabc RP |
908 | } |
909 | ||
910 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
911 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
912 | ||
bf3a9e13 MB |
913 | if (path->weak) |
914 | continue; | |
915 | ||
8af294b4 MB |
916 | if (path->walking) |
917 | return 1; | |
918 | ||
2b97eabc RP |
919 | if (path->walked) |
920 | continue; | |
921 | ||
ec2e3031 LG |
922 | trace_snd_soc_dapm_output_path(widget, path); |
923 | ||
2b97eabc RP |
924 | if (path->sink && path->connect) { |
925 | path->walked = 1; | |
8af294b4 | 926 | path->walking = 1; |
ec2e3031 LG |
927 | |
928 | /* do we need to add this widget to the list ? */ | |
929 | if (list) { | |
930 | int err; | |
931 | err = dapm_list_add_widget(list, path->sink); | |
932 | if (err < 0) { | |
30a6a1a4 LG |
933 | dev_err(widget->dapm->dev, |
934 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 935 | widget->name); |
8af294b4 | 936 | path->walking = 0; |
ec2e3031 LG |
937 | return con; |
938 | } | |
939 | } | |
940 | ||
941 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
942 | |
943 | path->walking = 0; | |
2b97eabc RP |
944 | } |
945 | } | |
946 | ||
024dc078 MB |
947 | widget->outputs = con; |
948 | ||
2b97eabc RP |
949 | return con; |
950 | } | |
951 | ||
952 | /* | |
953 | * Recursively check for a completed path to an active or physically connected | |
954 | * input widget. Returns number of complete paths. | |
955 | */ | |
ec2e3031 LG |
956 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
957 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
958 | { |
959 | struct snd_soc_dapm_path *path; | |
960 | int con = 0; | |
961 | ||
024dc078 MB |
962 | if (widget->inputs >= 0) |
963 | return widget->inputs; | |
964 | ||
de02d078 MB |
965 | DAPM_UPDATE_STAT(widget, path_checks); |
966 | ||
62ea874a MB |
967 | switch (widget->id) { |
968 | case snd_soc_dapm_supply: | |
969 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 970 | case snd_soc_dapm_clock_supply: |
246d0a17 | 971 | return 0; |
62ea874a MB |
972 | default: |
973 | break; | |
974 | } | |
246d0a17 | 975 | |
2b97eabc | 976 | /* active stream ? */ |
010ff262 MB |
977 | switch (widget->id) { |
978 | case snd_soc_dapm_dac: | |
979 | case snd_soc_dapm_aif_in: | |
4616274d | 980 | case snd_soc_dapm_dai_in: |
024dc078 MB |
981 | if (widget->active) { |
982 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
983 | return widget->inputs; | |
984 | } | |
010ff262 MB |
985 | default: |
986 | break; | |
987 | } | |
2b97eabc RP |
988 | |
989 | if (widget->connected) { | |
990 | /* connected pin ? */ | |
024dc078 MB |
991 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
992 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
993 | return widget->inputs; | |
994 | } | |
2b97eabc RP |
995 | |
996 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
997 | if (widget->id == snd_soc_dapm_vmid) { |
998 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
999 | return widget->inputs; | |
1000 | } | |
2b97eabc RP |
1001 | |
1002 | /* connected jack ? */ | |
eaeae5d9 | 1003 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1004 | (widget->id == snd_soc_dapm_line && |
1005 | !list_empty(&widget->sinks))) { | |
1006 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1007 | return widget->inputs; | |
1008 | } | |
1009 | ||
1ab97c8c MB |
1010 | /* signal generator */ |
1011 | if (widget->id == snd_soc_dapm_siggen) { | |
1012 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1013 | return widget->inputs; | |
1014 | } | |
2b97eabc RP |
1015 | } |
1016 | ||
1017 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1018 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1019 | ||
bf3a9e13 MB |
1020 | if (path->weak) |
1021 | continue; | |
1022 | ||
8af294b4 MB |
1023 | if (path->walking) |
1024 | return 1; | |
1025 | ||
2b97eabc RP |
1026 | if (path->walked) |
1027 | continue; | |
1028 | ||
ec2e3031 LG |
1029 | trace_snd_soc_dapm_input_path(widget, path); |
1030 | ||
2b97eabc RP |
1031 | if (path->source && path->connect) { |
1032 | path->walked = 1; | |
8af294b4 | 1033 | path->walking = 1; |
ec2e3031 LG |
1034 | |
1035 | /* do we need to add this widget to the list ? */ | |
1036 | if (list) { | |
1037 | int err; | |
90c6ce0d | 1038 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1039 | if (err < 0) { |
30a6a1a4 LG |
1040 | dev_err(widget->dapm->dev, |
1041 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1042 | widget->name); |
8af294b4 | 1043 | path->walking = 0; |
ec2e3031 LG |
1044 | return con; |
1045 | } | |
1046 | } | |
1047 | ||
1048 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1049 | |
1050 | path->walking = 0; | |
2b97eabc RP |
1051 | } |
1052 | } | |
1053 | ||
024dc078 MB |
1054 | widget->inputs = con; |
1055 | ||
2b97eabc RP |
1056 | return con; |
1057 | } | |
1058 | ||
ec2e3031 LG |
1059 | /** |
1060 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1061 | * @dai: the soc DAI. | |
1062 | * @stream: stream direction. | |
1063 | * @list: list of active widgets for this stream. | |
1064 | * | |
1065 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1066 | * the initial stream specified by name. This takes into account | |
1067 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1068 | * | |
1069 | * Returns the number of valid paths or negative error. | |
1070 | */ | |
1071 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1072 | struct snd_soc_dapm_widget_list **list) | |
1073 | { | |
1074 | struct snd_soc_card *card = dai->card; | |
1075 | int paths; | |
1076 | ||
1077 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1078 | dapm_reset(card); | |
1079 | ||
1059ecfa | 1080 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1081 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1082 | dapm_clear_walk_output(&card->dapm, |
1083 | &dai->playback_widget->sinks); | |
1084 | } else { | |
d298caae | 1085 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1086 | dapm_clear_walk_input(&card->dapm, |
1087 | &dai->capture_widget->sources); | |
1088 | } | |
ec2e3031 LG |
1089 | |
1090 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1091 | mutex_unlock(&card->dapm_mutex); |
1092 | ||
1093 | return paths; | |
1094 | } | |
1095 | ||
e2be2ccf JN |
1096 | /* |
1097 | * Handler for generic register modifier widget. | |
1098 | */ | |
1099 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1100 | struct snd_kcontrol *kcontrol, int event) | |
1101 | { | |
1102 | unsigned int val; | |
1103 | ||
1104 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1105 | val = w->on_val; | |
1106 | else | |
1107 | val = w->off_val; | |
1108 | ||
49575fb5 | 1109 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1110 | w->mask << w->shift, val << w->shift); |
1111 | ||
1112 | return 0; | |
1113 | } | |
11589418 | 1114 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1115 | |
62ea874a MB |
1116 | /* |
1117 | * Handler for regulator supply widget. | |
1118 | */ | |
1119 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1120 | struct snd_kcontrol *kcontrol, int event) | |
1121 | { | |
c05b84d1 MB |
1122 | int ret; |
1123 | ||
1124 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
1125 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1126 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1127 | if (ret != 0) |
1128 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1129 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1130 | w->name, ret); |
1131 | } | |
1132 | ||
a3cc056b | 1133 | return regulator_enable(w->regulator); |
c05b84d1 MB |
1134 | } else { |
1135 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1136 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1137 | if (ret != 0) |
1138 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1139 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1140 | w->name, ret); |
1141 | } | |
1142 | ||
a3cc056b | 1143 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1144 | } |
62ea874a MB |
1145 | } |
1146 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1147 | ||
d7e7eb91 OL |
1148 | /* |
1149 | * Handler for clock supply widget. | |
1150 | */ | |
1151 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1152 | struct snd_kcontrol *kcontrol, int event) | |
1153 | { | |
1154 | if (!w->clk) | |
1155 | return -EIO; | |
1156 | ||
ec02995a | 1157 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1158 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1159 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1160 | } else { |
37c1b927 | 1161 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1162 | return 0; |
1163 | } | |
ec02995a | 1164 | #endif |
98b3cf12 | 1165 | return 0; |
d7e7eb91 OL |
1166 | } |
1167 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1168 | ||
d805002b MB |
1169 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1170 | { | |
9b8a83b2 MB |
1171 | if (w->power_checked) |
1172 | return w->new_power; | |
1173 | ||
d805002b | 1174 | if (w->force) |
9b8a83b2 | 1175 | w->new_power = 1; |
d805002b | 1176 | else |
9b8a83b2 MB |
1177 | w->new_power = w->power_check(w); |
1178 | ||
1179 | w->power_checked = true; | |
1180 | ||
1181 | return w->new_power; | |
d805002b MB |
1182 | } |
1183 | ||
cd0f2d47 MB |
1184 | /* Generic check to see if a widget should be powered. |
1185 | */ | |
1186 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1187 | { | |
1188 | int in, out; | |
1189 | ||
de02d078 MB |
1190 | DAPM_UPDATE_STAT(w, power_checks); |
1191 | ||
ec2e3031 | 1192 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1193 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1194 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1195 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1196 | return out != 0 && in != 0; |
1197 | } | |
1198 | ||
6ea31b9f MB |
1199 | /* Check to see if an ADC has power */ |
1200 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1201 | { | |
1202 | int in; | |
1203 | ||
de02d078 MB |
1204 | DAPM_UPDATE_STAT(w, power_checks); |
1205 | ||
6ea31b9f | 1206 | if (w->active) { |
ec2e3031 | 1207 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1208 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1209 | return in != 0; |
1210 | } else { | |
1211 | return dapm_generic_check_power(w); | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | /* Check to see if a DAC has power */ | |
1216 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1217 | { | |
1218 | int out; | |
1219 | ||
de02d078 MB |
1220 | DAPM_UPDATE_STAT(w, power_checks); |
1221 | ||
6ea31b9f | 1222 | if (w->active) { |
ec2e3031 | 1223 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1224 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1225 | return out != 0; |
1226 | } else { | |
1227 | return dapm_generic_check_power(w); | |
1228 | } | |
1229 | } | |
1230 | ||
246d0a17 MB |
1231 | /* Check to see if a power supply is needed */ |
1232 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1233 | { | |
1234 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1235 | |
de02d078 MB |
1236 | DAPM_UPDATE_STAT(w, power_checks); |
1237 | ||
246d0a17 MB |
1238 | /* Check if one of our outputs is connected */ |
1239 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1240 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1241 | ||
bf3a9e13 MB |
1242 | if (path->weak) |
1243 | continue; | |
1244 | ||
215edda3 MB |
1245 | if (path->connected && |
1246 | !path->connected(path->source, path->sink)) | |
1247 | continue; | |
1248 | ||
3017358a MB |
1249 | if (!path->sink) |
1250 | continue; | |
1251 | ||
f68d7e16 MB |
1252 | if (dapm_widget_power_check(path->sink)) |
1253 | return 1; | |
246d0a17 MB |
1254 | } |
1255 | ||
f68d7e16 | 1256 | return 0; |
246d0a17 MB |
1257 | } |
1258 | ||
35c64bca MB |
1259 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1260 | { | |
1261 | return 1; | |
1262 | } | |
1263 | ||
38357ab2 MB |
1264 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1265 | struct snd_soc_dapm_widget *b, | |
828a842f | 1266 | bool power_up) |
42aa3418 | 1267 | { |
828a842f MB |
1268 | int *sort; |
1269 | ||
1270 | if (power_up) | |
1271 | sort = dapm_up_seq; | |
1272 | else | |
1273 | sort = dapm_down_seq; | |
1274 | ||
38357ab2 MB |
1275 | if (sort[a->id] != sort[b->id]) |
1276 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1277 | if (a->subseq != b->subseq) { |
1278 | if (power_up) | |
1279 | return a->subseq - b->subseq; | |
1280 | else | |
1281 | return b->subseq - a->subseq; | |
1282 | } | |
b22ead2a MB |
1283 | if (a->reg != b->reg) |
1284 | return a->reg - b->reg; | |
84dab567 MB |
1285 | if (a->dapm != b->dapm) |
1286 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1287 | |
38357ab2 MB |
1288 | return 0; |
1289 | } | |
42aa3418 | 1290 | |
38357ab2 MB |
1291 | /* Insert a widget in order into a DAPM power sequence. */ |
1292 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1293 | struct list_head *list, | |
828a842f | 1294 | bool power_up) |
38357ab2 MB |
1295 | { |
1296 | struct snd_soc_dapm_widget *w; | |
1297 | ||
1298 | list_for_each_entry(w, list, power_list) | |
828a842f | 1299 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1300 | list_add_tail(&new_widget->power_list, &w->power_list); |
1301 | return; | |
1302 | } | |
1303 | ||
1304 | list_add_tail(&new_widget->power_list, list); | |
1305 | } | |
1306 | ||
95dd5cd6 | 1307 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1308 | struct snd_soc_dapm_widget *w, int event) |
1309 | { | |
68f89ad8 MB |
1310 | const char *ev_name; |
1311 | int power, ret; | |
1312 | ||
1313 | switch (event) { | |
1314 | case SND_SOC_DAPM_PRE_PMU: | |
1315 | ev_name = "PRE_PMU"; | |
1316 | power = 1; | |
1317 | break; | |
1318 | case SND_SOC_DAPM_POST_PMU: | |
1319 | ev_name = "POST_PMU"; | |
1320 | power = 1; | |
1321 | break; | |
1322 | case SND_SOC_DAPM_PRE_PMD: | |
1323 | ev_name = "PRE_PMD"; | |
1324 | power = 0; | |
1325 | break; | |
1326 | case SND_SOC_DAPM_POST_PMD: | |
1327 | ev_name = "POST_PMD"; | |
1328 | power = 0; | |
1329 | break; | |
80114129 MB |
1330 | case SND_SOC_DAPM_WILL_PMU: |
1331 | ev_name = "WILL_PMU"; | |
1332 | power = 1; | |
1333 | break; | |
1334 | case SND_SOC_DAPM_WILL_PMD: | |
1335 | ev_name = "WILL_PMD"; | |
1336 | power = 0; | |
1337 | break; | |
68f89ad8 MB |
1338 | default: |
1339 | BUG(); | |
1340 | return; | |
1341 | } | |
1342 | ||
1343 | if (w->power != power) | |
1344 | return; | |
1345 | ||
1346 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1347 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1348 | w->name, ev_name); |
84e90930 | 1349 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1350 | ret = w->event(w, NULL, event); |
84e90930 | 1351 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1352 | if (ret < 0) |
95dd5cd6 | 1353 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1354 | ev_name, w->name, ret); |
1355 | } | |
1356 | } | |
1357 | ||
b22ead2a | 1358 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1359 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1360 | struct list_head *pending) |
163cac06 | 1361 | { |
68f89ad8 MB |
1362 | struct snd_soc_dapm_widget *w; |
1363 | int reg, power; | |
b22ead2a MB |
1364 | unsigned int value = 0; |
1365 | unsigned int mask = 0; | |
1366 | unsigned int cur_mask; | |
1367 | ||
1368 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1369 | power_list)->reg; | |
1370 | ||
1371 | list_for_each_entry(w, pending, power_list) { | |
1372 | cur_mask = 1 << w->shift; | |
1373 | BUG_ON(reg != w->reg); | |
1374 | ||
1375 | if (w->invert) | |
1376 | power = !w->power; | |
1377 | else | |
1378 | power = w->power; | |
1379 | ||
1380 | mask |= cur_mask; | |
1381 | if (power) | |
1382 | value |= cur_mask; | |
1383 | ||
95dd5cd6 | 1384 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1385 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1386 | w->name, reg, value, mask); | |
81628103 | 1387 | |
68f89ad8 | 1388 | /* Check for events */ |
95dd5cd6 LPC |
1389 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1390 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1391 | } |
1392 | ||
1393 | if (reg >= 0) { | |
29376bc7 MB |
1394 | /* Any widget will do, they should all be updating the |
1395 | * same register. | |
1396 | */ | |
1397 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1398 | power_list); | |
1399 | ||
95dd5cd6 | 1400 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1401 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1402 | value, mask, reg, card->pop_time); |
1403 | pop_wait(card->pop_time); | |
49575fb5 | 1404 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1405 | } |
1406 | ||
81628103 | 1407 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1408 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1409 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1410 | } |
b22ead2a | 1411 | } |
42aa3418 | 1412 | |
b22ead2a MB |
1413 | /* Apply a DAPM power sequence. |
1414 | * | |
1415 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1416 | * order to minimise the number of writes to the device required | |
1417 | * multiple widgets will be updated in a single write where possible. | |
1418 | * Currently anything that requires more than a single write is not | |
1419 | * handled. | |
1420 | */ | |
95dd5cd6 LPC |
1421 | static void dapm_seq_run(struct snd_soc_card *card, |
1422 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1423 | { |
1424 | struct snd_soc_dapm_widget *w, *n; | |
1425 | LIST_HEAD(pending); | |
1426 | int cur_sort = -1; | |
20e4859d | 1427 | int cur_subseq = -1; |
b22ead2a | 1428 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1429 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1430 | int ret, i; |
828a842f MB |
1431 | int *sort; |
1432 | ||
1433 | if (power_up) | |
1434 | sort = dapm_up_seq; | |
1435 | else | |
1436 | sort = dapm_down_seq; | |
163cac06 | 1437 | |
b22ead2a MB |
1438 | list_for_each_entry_safe(w, n, list, power_list) { |
1439 | ret = 0; | |
1440 | ||
1441 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1442 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1443 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1444 | if (!list_empty(&pending)) |
95dd5cd6 | 1445 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1446 | |
474b62d6 MB |
1447 | if (cur_dapm && cur_dapm->seq_notifier) { |
1448 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1449 | if (sort[i] == cur_sort) | |
1450 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1451 | i, |
1452 | cur_subseq); | |
474b62d6 MB |
1453 | } |
1454 | ||
b22ead2a MB |
1455 | INIT_LIST_HEAD(&pending); |
1456 | cur_sort = -1; | |
b0b3e6f8 | 1457 | cur_subseq = INT_MIN; |
b22ead2a | 1458 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1459 | cur_dapm = NULL; |
b22ead2a MB |
1460 | } |
1461 | ||
163cac06 MB |
1462 | switch (w->id) { |
1463 | case snd_soc_dapm_pre: | |
1464 | if (!w->event) | |
b22ead2a MB |
1465 | list_for_each_entry_safe_continue(w, n, list, |
1466 | power_list); | |
163cac06 | 1467 | |
b22ead2a | 1468 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1469 | ret = w->event(w, |
1470 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1471 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1472 | ret = w->event(w, |
1473 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1474 | break; |
1475 | ||
1476 | case snd_soc_dapm_post: | |
1477 | if (!w->event) | |
b22ead2a MB |
1478 | list_for_each_entry_safe_continue(w, n, list, |
1479 | power_list); | |
163cac06 | 1480 | |
b22ead2a | 1481 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1482 | ret = w->event(w, |
1483 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1484 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1485 | ret = w->event(w, |
1486 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1487 | break; |
1488 | ||
b22ead2a | 1489 | default: |
81628103 MB |
1490 | /* Queue it up for application */ |
1491 | cur_sort = sort[w->id]; | |
20e4859d | 1492 | cur_subseq = w->subseq; |
81628103 | 1493 | cur_reg = w->reg; |
7be31be8 | 1494 | cur_dapm = w->dapm; |
81628103 MB |
1495 | list_move(&w->power_list, &pending); |
1496 | break; | |
163cac06 | 1497 | } |
b22ead2a MB |
1498 | |
1499 | if (ret < 0) | |
f7d41ae8 | 1500 | dev_err(w->dapm->dev, |
30a6a1a4 | 1501 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1502 | } |
b22ead2a MB |
1503 | |
1504 | if (!list_empty(&pending)) | |
95dd5cd6 | 1505 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1506 | |
1507 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1508 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1509 | if (sort[i] == cur_sort) | |
1510 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1511 | i, cur_subseq); |
474b62d6 | 1512 | } |
42aa3418 MB |
1513 | } |
1514 | ||
95dd5cd6 | 1515 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1516 | { |
95dd5cd6 | 1517 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1518 | struct snd_soc_dapm_widget_list *wlist; |
1519 | struct snd_soc_dapm_widget *w = NULL; | |
1520 | unsigned int wi; | |
97404f2e MB |
1521 | int ret; |
1522 | ||
1523 | if (!update) | |
1524 | return; | |
1525 | ||
e84357f7 | 1526 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1527 | |
ce6cfaf1 LPC |
1528 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1529 | w = wlist->widgets[wi]; | |
1530 | ||
1531 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1532 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1533 | if (ret != 0) | |
95dd5cd6 | 1534 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1535 | w->name, ret); |
1536 | } | |
97404f2e MB |
1537 | } |
1538 | ||
ce6cfaf1 LPC |
1539 | if (!w) |
1540 | return; | |
1541 | ||
49575fb5 | 1542 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1543 | update->val); |
1544 | if (ret < 0) | |
95dd5cd6 | 1545 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1546 | w->name, ret); |
97404f2e | 1547 | |
ce6cfaf1 LPC |
1548 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1549 | w = wlist->widgets[wi]; | |
1550 | ||
1551 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1552 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1553 | if (ret != 0) | |
95dd5cd6 | 1554 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1555 | w->name, ret); |
1556 | } | |
97404f2e MB |
1557 | } |
1558 | } | |
1559 | ||
9d0624a7 MB |
1560 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1561 | * they're changing state. | |
1562 | */ | |
1563 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1564 | { | |
1565 | struct snd_soc_dapm_context *d = data; | |
1566 | int ret; | |
1567 | ||
56fba41f MB |
1568 | /* If we're off and we're not supposed to be go into STANDBY */ |
1569 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1570 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1571 | if (d->dev) |
1572 | pm_runtime_get_sync(d->dev); | |
1573 | ||
9d0624a7 MB |
1574 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1575 | if (ret != 0) | |
1576 | dev_err(d->dev, | |
30a6a1a4 | 1577 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1578 | } |
1579 | ||
56fba41f MB |
1580 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1581 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1582 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1583 | if (ret != 0) | |
1584 | dev_err(d->dev, | |
30a6a1a4 | 1585 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1586 | } |
1587 | } | |
1588 | ||
1589 | /* Async callback run prior to DAPM sequences - brings to their final | |
1590 | * state. | |
1591 | */ | |
1592 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1593 | { | |
1594 | struct snd_soc_dapm_context *d = data; | |
1595 | int ret; | |
1596 | ||
1597 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1598 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1599 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1600 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1601 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1602 | if (ret != 0) | |
30a6a1a4 | 1603 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1604 | ret); |
1605 | } | |
97404f2e | 1606 | |
9d0624a7 | 1607 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1608 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1609 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1610 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1611 | if (ret != 0) | |
30a6a1a4 LG |
1612 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1613 | ret); | |
f1aac484 MB |
1614 | |
1615 | if (d->dev) | |
fb644e9c | 1616 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1617 | } |
1618 | ||
1619 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1620 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1621 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1622 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1623 | if (ret != 0) | |
30a6a1a4 | 1624 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1625 | ret); |
1626 | } | |
1627 | } | |
97404f2e | 1628 | |
fe4fda5d MB |
1629 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1630 | bool power, bool connect) | |
1631 | { | |
1632 | /* If a connection is being made or broken then that update | |
1633 | * will have marked the peer dirty, otherwise the widgets are | |
1634 | * not connected and this update has no impact. */ | |
1635 | if (!connect) | |
1636 | return; | |
1637 | ||
1638 | /* If the peer is already in the state we're moving to then we | |
1639 | * won't have an impact on it. */ | |
1640 | if (power != peer->power) | |
75c1f891 | 1641 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1642 | } |
1643 | ||
05623c43 MB |
1644 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1645 | struct list_head *up_list, | |
1646 | struct list_head *down_list) | |
1647 | { | |
db432b41 MB |
1648 | struct snd_soc_dapm_path *path; |
1649 | ||
05623c43 MB |
1650 | if (w->power == power) |
1651 | return; | |
1652 | ||
1653 | trace_snd_soc_dapm_widget_power(w, power); | |
1654 | ||
db432b41 | 1655 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1656 | * also. |
db432b41 MB |
1657 | */ |
1658 | list_for_each_entry(path, &w->sources, list_sink) { | |
1659 | if (path->source) { | |
fe4fda5d MB |
1660 | dapm_widget_set_peer_power(path->source, power, |
1661 | path->connect); | |
db432b41 MB |
1662 | } |
1663 | } | |
f3bf3e45 MB |
1664 | switch (w->id) { |
1665 | case snd_soc_dapm_supply: | |
62ea874a | 1666 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1667 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1668 | /* Supplies can't affect their outputs, only their inputs */ |
1669 | break; | |
1670 | default: | |
1671 | list_for_each_entry(path, &w->sinks, list_source) { | |
1672 | if (path->sink) { | |
1673 | dapm_widget_set_peer_power(path->sink, power, | |
1674 | path->connect); | |
1675 | } | |
db432b41 | 1676 | } |
f3bf3e45 | 1677 | break; |
db432b41 MB |
1678 | } |
1679 | ||
05623c43 MB |
1680 | if (power) |
1681 | dapm_seq_insert(w, up_list, true); | |
1682 | else | |
1683 | dapm_seq_insert(w, down_list, false); | |
1684 | ||
1685 | w->power = power; | |
1686 | } | |
1687 | ||
7c81beb0 MB |
1688 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1689 | struct list_head *up_list, | |
1690 | struct list_head *down_list) | |
1691 | { | |
7c81beb0 MB |
1692 | int power; |
1693 | ||
1694 | switch (w->id) { | |
1695 | case snd_soc_dapm_pre: | |
1696 | dapm_seq_insert(w, down_list, false); | |
1697 | break; | |
1698 | case snd_soc_dapm_post: | |
1699 | dapm_seq_insert(w, up_list, true); | |
1700 | break; | |
1701 | ||
1702 | default: | |
d805002b | 1703 | power = dapm_widget_power_check(w); |
7c81beb0 | 1704 | |
05623c43 | 1705 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1706 | break; |
1707 | } | |
1708 | } | |
1709 | ||
2b97eabc RP |
1710 | /* |
1711 | * Scan each dapm widget for complete audio path. | |
1712 | * A complete path is a route that has valid endpoints i.e.:- | |
1713 | * | |
1714 | * o DAC to output pin. | |
1715 | * o Input Pin to ADC. | |
1716 | * o Input pin to Output pin (bypass, sidetone) | |
1717 | * o DAC to ADC (loopback). | |
1718 | */ | |
95dd5cd6 | 1719 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1720 | { |
1721 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1722 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1723 | LIST_HEAD(up_list); |
1724 | LIST_HEAD(down_list); | |
2955b47d | 1725 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1726 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1727 | |
84e90930 MB |
1728 | trace_snd_soc_dapm_start(card); |
1729 | ||
56fba41f | 1730 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1731 | if (d->idle_bias_off) |
1732 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1733 | else | |
1734 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1735 | } |
7be31be8 | 1736 | |
6c120e19 | 1737 | dapm_reset(card); |
9b8a83b2 | 1738 | |
6d3ddc81 | 1739 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1740 | * lists indicating if they should be powered up or down. We |
1741 | * only check widgets that have been flagged as dirty but note | |
1742 | * that new widgets may be added to the dirty list while we | |
1743 | * iterate. | |
6d3ddc81 | 1744 | */ |
db432b41 | 1745 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1746 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1747 | } |
1748 | ||
f9de6d74 | 1749 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1750 | switch (w->id) { |
1751 | case snd_soc_dapm_pre: | |
1752 | case snd_soc_dapm_post: | |
1753 | /* These widgets always need to be powered */ | |
1754 | break; | |
1755 | default: | |
1756 | list_del_init(&w->dirty); | |
1757 | break; | |
1758 | } | |
db432b41 | 1759 | |
f9de6d74 MB |
1760 | if (w->power) { |
1761 | d = w->dapm; | |
1762 | ||
1763 | /* Supplies and micbiases only bring the | |
1764 | * context up to STANDBY as unless something | |
1765 | * else is active and passing audio they | |
afe62367 MB |
1766 | * generally don't require full power. Signal |
1767 | * generators are virtual pins and have no | |
1768 | * power impact themselves. | |
f9de6d74 MB |
1769 | */ |
1770 | switch (w->id) { | |
afe62367 MB |
1771 | case snd_soc_dapm_siggen: |
1772 | break; | |
f9de6d74 | 1773 | case snd_soc_dapm_supply: |
62ea874a | 1774 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1775 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1776 | case snd_soc_dapm_micbias: |
1777 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1778 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1779 | break; | |
1780 | default: | |
1781 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1782 | break; | |
1783 | } | |
1784 | } | |
1785 | ||
1786 | } | |
1787 | ||
85a843c5 MB |
1788 | /* Force all contexts in the card to the same bias state if |
1789 | * they're not ground referenced. | |
1790 | */ | |
56fba41f | 1791 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1792 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1793 | if (d->target_bias_level > bias) |
1794 | bias = d->target_bias_level; | |
52ba67bf | 1795 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1796 | if (!d->idle_bias_off) |
1797 | d->target_bias_level = bias; | |
52ba67bf | 1798 | |
de02d078 | 1799 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1800 | |
9d0624a7 | 1801 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1802 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1803 | async_schedule_domain(dapm_pre_sequence_async, d, |
1804 | &async_domain); | |
1805 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1806 | |
cf1f7c6e | 1807 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1808 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1809 | } |
1810 | ||
cf1f7c6e | 1811 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1812 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1813 | } |
1814 | ||
6d3ddc81 | 1815 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1816 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1817 | |
95dd5cd6 | 1818 | dapm_widget_update(card); |
97404f2e | 1819 | |
6d3ddc81 | 1820 | /* Now power up. */ |
95dd5cd6 | 1821 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1822 | |
9d0624a7 | 1823 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1824 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1825 | async_schedule_domain(dapm_post_sequence_async, d, |
1826 | &async_domain); | |
1827 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1828 | |
8078d87f LG |
1829 | /* do we need to notify any clients that DAPM event is complete */ |
1830 | list_for_each_entry(d, &card->dapm_list, list) { | |
1831 | if (d->stream_event) | |
1832 | d->stream_event(d, event); | |
1833 | } | |
1834 | ||
95dd5cd6 | 1835 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1836 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1837 | pop_wait(card->pop_time); |
cb507e7e | 1838 | |
84e90930 MB |
1839 | trace_snd_soc_dapm_done(card); |
1840 | ||
42aa3418 | 1841 | return 0; |
2b97eabc RP |
1842 | } |
1843 | ||
79fb9387 | 1844 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1845 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1846 | char __user *user_buf, | |
1847 | size_t count, loff_t *ppos) | |
1848 | { | |
1849 | struct snd_soc_dapm_widget *w = file->private_data; | |
1850 | char *buf; | |
1851 | int in, out; | |
1852 | ssize_t ret; | |
1853 | struct snd_soc_dapm_path *p = NULL; | |
1854 | ||
1855 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1856 | if (!buf) | |
1857 | return -ENOMEM; | |
1858 | ||
ec2e3031 | 1859 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1860 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1861 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1862 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1863 | |
f13ebada MB |
1864 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1865 | w->name, w->power ? "On" : "Off", | |
1866 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1867 | |
d033c36a MB |
1868 | if (w->reg >= 0) |
1869 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1870 | " - R%d(0x%x) bit %d", | |
1871 | w->reg, w->reg, w->shift); | |
1872 | ||
1873 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1874 | ||
3eef08ba MB |
1875 | if (w->sname) |
1876 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1877 | w->sname, | |
1878 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1879 | |
1880 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1881 | if (p->connected && !p->connected(w, p->sink)) |
1882 | continue; | |
1883 | ||
79fb9387 MB |
1884 | if (p->connect) |
1885 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1886 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1887 | p->name ? p->name : "static", |
1888 | p->source->name); | |
1889 | } | |
1890 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1891 | if (p->connected && !p->connected(w, p->sink)) |
1892 | continue; | |
1893 | ||
79fb9387 MB |
1894 | if (p->connect) |
1895 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1896 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1897 | p->name ? p->name : "static", |
1898 | p->sink->name); | |
1899 | } | |
1900 | ||
1901 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1902 | ||
1903 | kfree(buf); | |
1904 | return ret; | |
1905 | } | |
1906 | ||
1907 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1908 | .open = simple_open, |
79fb9387 | 1909 | .read = dapm_widget_power_read_file, |
6038f373 | 1910 | .llseek = default_llseek, |
79fb9387 MB |
1911 | }; |
1912 | ||
ef49e4fa MB |
1913 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1914 | size_t count, loff_t *ppos) | |
1915 | { | |
1916 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1917 | char *level; | |
1918 | ||
1919 | switch (dapm->bias_level) { | |
1920 | case SND_SOC_BIAS_ON: | |
1921 | level = "On\n"; | |
1922 | break; | |
1923 | case SND_SOC_BIAS_PREPARE: | |
1924 | level = "Prepare\n"; | |
1925 | break; | |
1926 | case SND_SOC_BIAS_STANDBY: | |
1927 | level = "Standby\n"; | |
1928 | break; | |
1929 | case SND_SOC_BIAS_OFF: | |
1930 | level = "Off\n"; | |
1931 | break; | |
1932 | default: | |
1933 | BUG(); | |
1934 | level = "Unknown\n"; | |
1935 | break; | |
1936 | } | |
1937 | ||
1938 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1939 | strlen(level)); | |
1940 | } | |
1941 | ||
1942 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1943 | .open = simple_open, |
ef49e4fa MB |
1944 | .read = dapm_bias_read_file, |
1945 | .llseek = default_llseek, | |
1946 | }; | |
1947 | ||
8eecaf62 LPC |
1948 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1949 | struct dentry *parent) | |
79fb9387 | 1950 | { |
79fb9387 MB |
1951 | struct dentry *d; |
1952 | ||
8eecaf62 LPC |
1953 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1954 | ||
1955 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1956 | dev_warn(dapm->dev, |
30a6a1a4 | 1957 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1958 | return; |
8eecaf62 | 1959 | } |
79fb9387 | 1960 | |
ef49e4fa MB |
1961 | d = debugfs_create_file("bias_level", 0444, |
1962 | dapm->debugfs_dapm, dapm, | |
1963 | &dapm_bias_fops); | |
1964 | if (!d) | |
1965 | dev_warn(dapm->dev, | |
1966 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1967 | } |
ef49e4fa | 1968 | |
d5d1e0be LPC |
1969 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1970 | { | |
1971 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1972 | struct dentry *d; | |
79fb9387 | 1973 | |
d5d1e0be LPC |
1974 | if (!dapm->debugfs_dapm || !w->name) |
1975 | return; | |
1976 | ||
1977 | d = debugfs_create_file(w->name, 0444, | |
1978 | dapm->debugfs_dapm, w, | |
1979 | &dapm_widget_power_fops); | |
1980 | if (!d) | |
1981 | dev_warn(w->dapm->dev, | |
1982 | "ASoC: Failed to create %s debugfs file\n", | |
1983 | w->name); | |
79fb9387 | 1984 | } |
d5d1e0be | 1985 | |
6c45e126 LPC |
1986 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1987 | { | |
1988 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1989 | } | |
1990 | ||
79fb9387 | 1991 | #else |
8eecaf62 LPC |
1992 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1993 | struct dentry *parent) | |
79fb9387 MB |
1994 | { |
1995 | } | |
d5d1e0be LPC |
1996 | |
1997 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1998 | { | |
1999 | } | |
2000 | ||
6c45e126 LPC |
2001 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2002 | { | |
2003 | } | |
2004 | ||
79fb9387 MB |
2005 | #endif |
2006 | ||
2b97eabc | 2007 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2008 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2009 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2010 | { |
2011 | struct snd_soc_dapm_path *path; | |
2012 | int found = 0; | |
2013 | ||
2b97eabc | 2014 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2015 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2016 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2017 | continue; |
2018 | ||
2019 | found = 1; | |
2020 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2021 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2022 | path->connect = 1; /* new connection */ |
75c1f891 | 2023 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2024 | } else { |
2025 | if (path->connect) | |
75c1f891 MB |
2026 | dapm_mark_dirty(path->source, |
2027 | "mux disconnection"); | |
2b97eabc | 2028 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2029 | } |
ce6cfaf1 | 2030 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2031 | } |
2032 | ||
ce6cfaf1 | 2033 | if (found) |
95dd5cd6 | 2034 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2035 | |
618dae11 | 2036 | return found; |
2b97eabc | 2037 | } |
4edbb345 | 2038 | |
ce6cfaf1 | 2039 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2040 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2041 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2042 | { |
ce6cfaf1 | 2043 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2044 | int ret; |
2045 | ||
3cd04343 | 2046 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2047 | card->update = update; |
95dd5cd6 | 2048 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2049 | card->update = NULL; |
4edbb345 | 2050 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2051 | if (ret > 0) |
c3f48ae6 | 2052 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2053 | return ret; |
2054 | } | |
40f02cd9 | 2055 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2056 | |
1b075e3f | 2057 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2058 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2059 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2060 | { |
2061 | struct snd_soc_dapm_path *path; | |
2062 | int found = 0; | |
2063 | ||
2b97eabc | 2064 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2065 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2066 | found = 1; |
283375ce | 2067 | path->connect = connect; |
75c1f891 | 2068 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2069 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2070 | } |
2071 | ||
ce6cfaf1 | 2072 | if (found) |
95dd5cd6 | 2073 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2074 | |
618dae11 | 2075 | return found; |
2b97eabc | 2076 | } |
4edbb345 | 2077 | |
ce6cfaf1 | 2078 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2079 | struct snd_kcontrol *kcontrol, int connect, |
2080 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2081 | { |
ce6cfaf1 | 2082 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2083 | int ret; |
2084 | ||
3cd04343 | 2085 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2086 | card->update = update; |
95dd5cd6 | 2087 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2088 | card->update = NULL; |
4edbb345 | 2089 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2090 | if (ret > 0) |
c3f48ae6 | 2091 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2092 | return ret; |
2093 | } | |
40f02cd9 | 2094 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2095 | |
2096 | /* show dapm widget status in sys fs */ | |
2097 | static ssize_t dapm_widget_show(struct device *dev, | |
2098 | struct device_attribute *attr, char *buf) | |
2099 | { | |
36ae1a96 | 2100 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2101 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2102 | struct snd_soc_dapm_widget *w; |
2103 | int count = 0; | |
2104 | char *state = "not set"; | |
2105 | ||
97c866de JN |
2106 | list_for_each_entry(w, &codec->card->widgets, list) { |
2107 | if (w->dapm != &codec->dapm) | |
2108 | continue; | |
2b97eabc RP |
2109 | |
2110 | /* only display widgets that burnm power */ | |
2111 | switch (w->id) { | |
2112 | case snd_soc_dapm_hp: | |
2113 | case snd_soc_dapm_mic: | |
2114 | case snd_soc_dapm_spk: | |
2115 | case snd_soc_dapm_line: | |
2116 | case snd_soc_dapm_micbias: | |
2117 | case snd_soc_dapm_dac: | |
2118 | case snd_soc_dapm_adc: | |
2119 | case snd_soc_dapm_pga: | |
d88429a6 | 2120 | case snd_soc_dapm_out_drv: |
2b97eabc | 2121 | case snd_soc_dapm_mixer: |
ca9c1aae | 2122 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2123 | case snd_soc_dapm_supply: |
62ea874a | 2124 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2125 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2126 | if (w->name) |
2127 | count += sprintf(buf + count, "%s: %s\n", | |
2128 | w->name, w->power ? "On":"Off"); | |
2129 | break; | |
2130 | default: | |
2131 | break; | |
2132 | } | |
2133 | } | |
2134 | ||
ce6120cc | 2135 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2136 | case SND_SOC_BIAS_ON: |
2137 | state = "On"; | |
2b97eabc | 2138 | break; |
0be9898a MB |
2139 | case SND_SOC_BIAS_PREPARE: |
2140 | state = "Prepare"; | |
2b97eabc | 2141 | break; |
0be9898a MB |
2142 | case SND_SOC_BIAS_STANDBY: |
2143 | state = "Standby"; | |
2b97eabc | 2144 | break; |
0be9898a MB |
2145 | case SND_SOC_BIAS_OFF: |
2146 | state = "Off"; | |
2b97eabc RP |
2147 | break; |
2148 | } | |
2149 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2150 | ||
2151 | return count; | |
2152 | } | |
2153 | ||
2154 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2155 | ||
2156 | int snd_soc_dapm_sys_add(struct device *dev) | |
2157 | { | |
12ef193d | 2158 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2159 | } |
2160 | ||
2161 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2162 | { | |
aef90843 | 2163 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2164 | } |
2165 | ||
8872293f LPC |
2166 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2167 | { | |
2168 | list_del(&path->list_sink); | |
2169 | list_del(&path->list_source); | |
5106b92f | 2170 | list_del(&path->list_kcontrol); |
8872293f | 2171 | list_del(&path->list); |
8872293f LPC |
2172 | kfree(path); |
2173 | } | |
2174 | ||
2b97eabc | 2175 | /* free all dapm widgets and resources */ |
ce6120cc | 2176 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2177 | { |
2178 | struct snd_soc_dapm_widget *w, *next_w; | |
2179 | struct snd_soc_dapm_path *p, *next_p; | |
2180 | ||
97c866de JN |
2181 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2182 | if (w->dapm != dapm) | |
2183 | continue; | |
2b97eabc | 2184 | list_del(&w->list); |
8ddab3f5 JN |
2185 | /* |
2186 | * remove source and sink paths associated to this widget. | |
2187 | * While removing the path, remove reference to it from both | |
2188 | * source and sink widgets so that path is removed only once. | |
2189 | */ | |
8872293f LPC |
2190 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2191 | dapm_free_path(p); | |
2192 | ||
2193 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2194 | dapm_free_path(p); | |
2195 | ||
fad59888 | 2196 | kfree(w->kcontrols); |
ead9b919 | 2197 | kfree(w->name); |
2b97eabc RP |
2198 | kfree(w); |
2199 | } | |
2b97eabc RP |
2200 | } |
2201 | ||
91a5fca4 LPC |
2202 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2203 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2204 | bool search_other_contexts) | |
a5302181 LG |
2205 | { |
2206 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2207 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2208 | |
97c866de | 2209 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2210 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2211 | if (w->dapm == dapm) |
2212 | return w; | |
2213 | else | |
2214 | fallback = w; | |
a5302181 LG |
2215 | } |
2216 | } | |
2217 | ||
91a5fca4 LPC |
2218 | if (search_other_contexts) |
2219 | return fallback; | |
2220 | ||
2221 | return NULL; | |
2222 | } | |
2223 | ||
2224 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2225 | const char *pin, int status) | |
2226 | { | |
2227 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2228 | ||
2229 | if (!w) { | |
30a6a1a4 | 2230 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2231 | return -EINVAL; |
0d86733c MB |
2232 | } |
2233 | ||
1a8b2d9d MB |
2234 | if (w->connected != status) |
2235 | dapm_mark_dirty(w, "pin configuration"); | |
2236 | ||
91a5fca4 LPC |
2237 | w->connected = status; |
2238 | if (status == 0) | |
2239 | w->force = 0; | |
2240 | ||
2241 | return 0; | |
a5302181 LG |
2242 | } |
2243 | ||
2b97eabc | 2244 | /** |
a5302181 | 2245 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2246 | * @dapm: DAPM context |
2b97eabc RP |
2247 | * |
2248 | * Walks all dapm audio paths and powers widgets according to their | |
2249 | * stream or path usage. | |
2250 | * | |
2251 | * Returns 0 for success. | |
2252 | */ | |
ce6120cc | 2253 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2254 | { |
a73fb2df LG |
2255 | int ret; |
2256 | ||
4f4c0072 MB |
2257 | /* |
2258 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2259 | * silly DAPM runs during card startup. | |
2260 | */ | |
2261 | if (!dapm->card || !dapm->card->instantiated) | |
2262 | return 0; | |
2263 | ||
3cd04343 | 2264 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
95dd5cd6 | 2265 | ret = dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df LG |
2266 | mutex_unlock(&dapm->card->dapm_mutex); |
2267 | return ret; | |
2b97eabc | 2268 | } |
a5302181 | 2269 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2270 | |
ce6120cc | 2271 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2272 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2273 | { |
2274 | struct snd_soc_dapm_path *path; | |
2275 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2276 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2277 | const char *sink; |
215edda3 | 2278 | const char *control = route->control; |
ead9b919 JN |
2279 | const char *source; |
2280 | char prefixed_sink[80]; | |
2281 | char prefixed_source[80]; | |
2b97eabc RP |
2282 | int ret = 0; |
2283 | ||
88e8b9a8 | 2284 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2285 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2286 | dapm->codec->name_prefix, route->sink); | |
2287 | sink = prefixed_sink; | |
2288 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2289 | dapm->codec->name_prefix, route->source); | |
2290 | source = prefixed_source; | |
2291 | } else { | |
2292 | sink = route->sink; | |
2293 | source = route->source; | |
2294 | } | |
2295 | ||
97c866de JN |
2296 | /* |
2297 | * find src and dest widgets over all widgets but favor a widget from | |
2298 | * current DAPM context | |
2299 | */ | |
2300 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2301 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2302 | wtsink = w; |
2303 | if (w->dapm == dapm) | |
2304 | wsink = w; | |
2b97eabc RP |
2305 | continue; |
2306 | } | |
2307 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2308 | wtsource = w; |
2309 | if (w->dapm == dapm) | |
2310 | wsource = w; | |
2b97eabc RP |
2311 | } |
2312 | } | |
97c866de JN |
2313 | /* use widget from another DAPM context if not found from this */ |
2314 | if (!wsink) | |
2315 | wsink = wtsink; | |
2316 | if (!wsource) | |
2317 | wsource = wtsource; | |
2b97eabc | 2318 | |
30a6a1a4 LG |
2319 | if (wsource == NULL) { |
2320 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2321 | route->source); | |
2b97eabc | 2322 | return -ENODEV; |
30a6a1a4 LG |
2323 | } |
2324 | if (wsink == NULL) { | |
2325 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2326 | route->sink); | |
2327 | return -ENODEV; | |
2328 | } | |
2b97eabc RP |
2329 | |
2330 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2331 | if (!path) | |
2332 | return -ENOMEM; | |
2333 | ||
2334 | path->source = wsource; | |
2335 | path->sink = wsink; | |
215edda3 | 2336 | path->connected = route->connected; |
2b97eabc RP |
2337 | INIT_LIST_HEAD(&path->list); |
2338 | INIT_LIST_HEAD(&path->list_source); | |
2339 | INIT_LIST_HEAD(&path->list_sink); | |
2340 | ||
2341 | /* check for external widgets */ | |
2342 | if (wsink->id == snd_soc_dapm_input) { | |
2343 | if (wsource->id == snd_soc_dapm_micbias || | |
2344 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2345 | wsource->id == snd_soc_dapm_line || |
2346 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2347 | wsink->ext = 1; |
2348 | } | |
2349 | if (wsource->id == snd_soc_dapm_output) { | |
2350 | if (wsink->id == snd_soc_dapm_spk || | |
2351 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2352 | wsink->id == snd_soc_dapm_line || |
2353 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2354 | wsource->ext = 1; |
2355 | } | |
2356 | ||
2357 | /* connect static paths */ | |
2358 | if (control == NULL) { | |
8ddab3f5 | 2359 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2360 | list_add(&path->list_sink, &wsink->sources); |
2361 | list_add(&path->list_source, &wsource->sinks); | |
2362 | path->connect = 1; | |
2363 | return 0; | |
2364 | } | |
2365 | ||
2366 | /* connect dynamic paths */ | |
dc2bea61 | 2367 | switch (wsink->id) { |
2b97eabc RP |
2368 | case snd_soc_dapm_adc: |
2369 | case snd_soc_dapm_dac: | |
2370 | case snd_soc_dapm_pga: | |
d88429a6 | 2371 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2372 | case snd_soc_dapm_input: |
2373 | case snd_soc_dapm_output: | |
1ab97c8c | 2374 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2375 | case snd_soc_dapm_micbias: |
2376 | case snd_soc_dapm_vmid: | |
2377 | case snd_soc_dapm_pre: | |
2378 | case snd_soc_dapm_post: | |
246d0a17 | 2379 | case snd_soc_dapm_supply: |
62ea874a | 2380 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2381 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2382 | case snd_soc_dapm_aif_in: |
2383 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2384 | case snd_soc_dapm_dai_in: |
2385 | case snd_soc_dapm_dai_out: | |
c74184ed | 2386 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2387 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2388 | list_add(&path->list_sink, &wsink->sources); |
2389 | list_add(&path->list_source, &wsource->sinks); | |
2390 | path->connect = 1; | |
2391 | return 0; | |
2392 | case snd_soc_dapm_mux: | |
24ff33ac | 2393 | case snd_soc_dapm_virt_mux: |
74155556 | 2394 | case snd_soc_dapm_value_mux: |
ce6120cc | 2395 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2396 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2397 | if (ret != 0) |
2398 | goto err; | |
2399 | break; | |
2400 | case snd_soc_dapm_switch: | |
2401 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2402 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2403 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2404 | if (ret != 0) |
2405 | goto err; | |
2406 | break; | |
2407 | case snd_soc_dapm_hp: | |
2408 | case snd_soc_dapm_mic: | |
2409 | case snd_soc_dapm_line: | |
2410 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2411 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2412 | list_add(&path->list_sink, &wsink->sources); |
2413 | list_add(&path->list_source, &wsource->sinks); | |
2414 | path->connect = 0; | |
2415 | return 0; | |
2416 | } | |
fabd0384 MB |
2417 | |
2418 | dapm_mark_dirty(wsource, "Route added"); | |
2419 | dapm_mark_dirty(wsink, "Route added"); | |
2420 | ||
2b97eabc RP |
2421 | return 0; |
2422 | ||
2423 | err: | |
30a6a1a4 | 2424 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
f7d41ae8 | 2425 | source, control, sink); |
2b97eabc RP |
2426 | kfree(path); |
2427 | return ret; | |
2428 | } | |
105f1c28 | 2429 | |
efcc3c61 MB |
2430 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2431 | const struct snd_soc_dapm_route *route) | |
2432 | { | |
2433 | struct snd_soc_dapm_path *path, *p; | |
2434 | const char *sink; | |
2435 | const char *source; | |
2436 | char prefixed_sink[80]; | |
2437 | char prefixed_source[80]; | |
2438 | ||
2439 | if (route->control) { | |
2440 | dev_err(dapm->dev, | |
30a6a1a4 | 2441 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2442 | return -EINVAL; |
2443 | } | |
2444 | ||
2445 | if (dapm->codec && dapm->codec->name_prefix) { | |
2446 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2447 | dapm->codec->name_prefix, route->sink); | |
2448 | sink = prefixed_sink; | |
2449 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2450 | dapm->codec->name_prefix, route->source); | |
2451 | source = prefixed_source; | |
2452 | } else { | |
2453 | sink = route->sink; | |
2454 | source = route->source; | |
2455 | } | |
2456 | ||
2457 | path = NULL; | |
2458 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2459 | if (strcmp(p->source->name, source) != 0) | |
2460 | continue; | |
2461 | if (strcmp(p->sink->name, sink) != 0) | |
2462 | continue; | |
2463 | path = p; | |
2464 | break; | |
2465 | } | |
2466 | ||
2467 | if (path) { | |
2468 | dapm_mark_dirty(path->source, "Route removed"); | |
2469 | dapm_mark_dirty(path->sink, "Route removed"); | |
2470 | ||
8872293f | 2471 | dapm_free_path(path); |
efcc3c61 | 2472 | } else { |
30a6a1a4 | 2473 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2474 | source, sink); |
2475 | } | |
2476 | ||
2477 | return 0; | |
2478 | } | |
2479 | ||
105f1c28 MB |
2480 | /** |
2481 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2482 | * @dapm: DAPM context |
105f1c28 MB |
2483 | * @route: audio routes |
2484 | * @num: number of routes | |
2485 | * | |
2486 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2487 | * the widget receiving the audio signal, whilst the source is the sender | |
2488 | * of the audio signal. | |
2489 | * | |
2490 | * Returns 0 for success else error. On error all resources can be freed | |
2491 | * with a call to snd_soc_card_free(). | |
2492 | */ | |
ce6120cc | 2493 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2494 | const struct snd_soc_dapm_route *route, int num) |
2495 | { | |
62d4a4b9 | 2496 | int i, r, ret = 0; |
105f1c28 | 2497 | |
a73fb2df | 2498 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2499 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2500 | r = snd_soc_dapm_add_route(dapm, route); |
2501 | if (r < 0) { | |
30a6a1a4 LG |
2502 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2503 | route->source, | |
2504 | route->control ? route->control : "direct", | |
2505 | route->sink); | |
62d4a4b9 | 2506 | ret = r; |
105f1c28 MB |
2507 | } |
2508 | route++; | |
2509 | } | |
a73fb2df | 2510 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2511 | |
60884c27 | 2512 | return ret; |
105f1c28 MB |
2513 | } |
2514 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2515 | ||
efcc3c61 MB |
2516 | /** |
2517 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2518 | * @dapm: DAPM context | |
2519 | * @route: audio routes | |
2520 | * @num: number of routes | |
2521 | * | |
2522 | * Removes routes from the DAPM context. | |
2523 | */ | |
2524 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2525 | const struct snd_soc_dapm_route *route, int num) | |
2526 | { | |
2527 | int i, ret = 0; | |
2528 | ||
2529 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2530 | for (i = 0; i < num; i++) { | |
2531 | snd_soc_dapm_del_route(dapm, route); | |
2532 | route++; | |
2533 | } | |
2534 | mutex_unlock(&dapm->card->dapm_mutex); | |
2535 | ||
2536 | return ret; | |
2537 | } | |
2538 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2539 | ||
bf3a9e13 MB |
2540 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2541 | const struct snd_soc_dapm_route *route) | |
2542 | { | |
2543 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2544 | route->source, | |
2545 | true); | |
2546 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2547 | route->sink, | |
2548 | true); | |
2549 | struct snd_soc_dapm_path *path; | |
2550 | int count = 0; | |
2551 | ||
2552 | if (!source) { | |
30a6a1a4 | 2553 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2554 | route->source); |
2555 | return -ENODEV; | |
2556 | } | |
2557 | ||
2558 | if (!sink) { | |
30a6a1a4 | 2559 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2560 | route->sink); |
2561 | return -ENODEV; | |
2562 | } | |
2563 | ||
2564 | if (route->control || route->connected) | |
30a6a1a4 | 2565 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2566 | route->source, route->sink); |
2567 | ||
2568 | list_for_each_entry(path, &source->sinks, list_source) { | |
2569 | if (path->sink == sink) { | |
2570 | path->weak = 1; | |
2571 | count++; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | if (count == 0) | |
30a6a1a4 | 2576 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2577 | route->source, route->sink); |
2578 | if (count > 1) | |
30a6a1a4 | 2579 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2580 | count, route->source, route->sink); |
2581 | ||
2582 | return 0; | |
2583 | } | |
2584 | ||
2585 | /** | |
2586 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2587 | * @dapm: DAPM context | |
2588 | * @route: audio routes | |
2589 | * @num: number of routes | |
2590 | * | |
2591 | * Mark existing routes matching those specified in the passed array | |
2592 | * as being weak, meaning that they are ignored for the purpose of | |
2593 | * power decisions. The main intended use case is for sidetone paths | |
2594 | * which couple audio between other independent paths if they are both | |
2595 | * active in order to make the combination work better at the user | |
2596 | * level but which aren't intended to be "used". | |
2597 | * | |
2598 | * Note that CODEC drivers should not use this as sidetone type paths | |
2599 | * can frequently also be used as bypass paths. | |
2600 | */ | |
2601 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2602 | const struct snd_soc_dapm_route *route, int num) | |
2603 | { | |
2604 | int i, err; | |
2605 | int ret = 0; | |
2606 | ||
a73fb2df | 2607 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2608 | for (i = 0; i < num; i++) { |
2609 | err = snd_soc_dapm_weak_route(dapm, route); | |
2610 | if (err) | |
2611 | ret = err; | |
2612 | route++; | |
2613 | } | |
a73fb2df | 2614 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2615 | |
2616 | return ret; | |
2617 | } | |
2618 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2619 | ||
2b97eabc RP |
2620 | /** |
2621 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2622 | * @dapm: DAPM context |
2b97eabc RP |
2623 | * |
2624 | * Checks the codec for any new dapm widgets and creates them if found. | |
2625 | * | |
2626 | * Returns 0 for success. | |
2627 | */ | |
ce6120cc | 2628 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2629 | { |
95dd5cd6 | 2630 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 2631 | struct snd_soc_dapm_widget *w; |
b66a70d5 | 2632 | unsigned int val; |
2b97eabc | 2633 | |
95dd5cd6 | 2634 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2635 | |
95dd5cd6 | 2636 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2637 | { |
2638 | if (w->new) | |
2639 | continue; | |
2640 | ||
fad59888 SW |
2641 | if (w->num_kcontrols) { |
2642 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2643 | sizeof(struct snd_kcontrol *), | |
2644 | GFP_KERNEL); | |
a73fb2df | 2645 | if (!w->kcontrols) { |
95dd5cd6 | 2646 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2647 | return -ENOMEM; |
a73fb2df | 2648 | } |
fad59888 SW |
2649 | } |
2650 | ||
2b97eabc RP |
2651 | switch(w->id) { |
2652 | case snd_soc_dapm_switch: | |
2653 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2654 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2655 | dapm_new_mixer(w); |
2b97eabc RP |
2656 | break; |
2657 | case snd_soc_dapm_mux: | |
24ff33ac | 2658 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2659 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2660 | dapm_new_mux(w); |
2b97eabc | 2661 | break; |
2b97eabc | 2662 | case snd_soc_dapm_pga: |
d88429a6 | 2663 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2664 | dapm_new_pga(w); |
2b97eabc | 2665 | break; |
7ca3a18b | 2666 | default: |
2b97eabc RP |
2667 | break; |
2668 | } | |
b66a70d5 MB |
2669 | |
2670 | /* Read the initial power state from the device */ | |
2671 | if (w->reg >= 0) { | |
0445bdf4 | 2672 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2673 | val &= 1 << w->shift; |
2674 | if (w->invert) | |
2675 | val = !val; | |
2676 | ||
2677 | if (val) | |
2678 | w->power = 1; | |
2679 | } | |
2680 | ||
2b97eabc | 2681 | w->new = 1; |
d5d1e0be | 2682 | |
7508b12a | 2683 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2684 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2685 | } |
2686 | ||
95dd5cd6 LPC |
2687 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2688 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2689 | return 0; |
2690 | } | |
2691 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2692 | ||
2693 | /** | |
2694 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2695 | * @kcontrol: mixer control | |
ac11a2b3 | 2696 | * @ucontrol: control element information |
2b97eabc RP |
2697 | * |
2698 | * Callback to get the value of a dapm mixer control. | |
2699 | * | |
2700 | * Returns 0 for success. | |
2701 | */ | |
2702 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2703 | struct snd_ctl_elem_value *ucontrol) | |
2704 | { | |
eee5d7f9 | 2705 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
4eaa9819 JS |
2706 | struct soc_mixer_control *mc = |
2707 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2708 | unsigned int reg = mc->reg; |
2709 | unsigned int shift = mc->shift; | |
4eaa9819 | 2710 | int max = mc->max; |
815ecf8d | 2711 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2712 | unsigned int invert = mc->invert; |
2713 | ||
2714 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2715 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2716 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2717 | kcontrol->id.name); |
2b97eabc | 2718 | |
2b97eabc | 2719 | ucontrol->value.integer.value[0] = |
eee5d7f9 | 2720 | (snd_soc_read(codec, reg) >> shift) & mask; |
da602ab8 | 2721 | if (invert) |
2b97eabc | 2722 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2723 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2724 | |
2725 | return 0; | |
2726 | } | |
2727 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2728 | ||
2729 | /** | |
2730 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2731 | * @kcontrol: mixer control | |
ac11a2b3 | 2732 | * @ucontrol: control element information |
2b97eabc RP |
2733 | * |
2734 | * Callback to set the value of a dapm mixer control. | |
2735 | * | |
2736 | * Returns 0 for success. | |
2737 | */ | |
2738 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2739 | struct snd_ctl_elem_value *ucontrol) | |
2740 | { | |
eee5d7f9 | 2741 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2742 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2743 | struct soc_mixer_control *mc = |
2744 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2745 | unsigned int reg = mc->reg; |
2746 | unsigned int shift = mc->shift; | |
4eaa9819 | 2747 | int max = mc->max; |
815ecf8d JS |
2748 | unsigned int mask = (1 << fls(max)) - 1; |
2749 | unsigned int invert = mc->invert; | |
e9cf7049 | 2750 | unsigned int val; |
97404f2e MB |
2751 | int connect, change; |
2752 | struct snd_soc_dapm_update update; | |
2b97eabc | 2753 | |
da602ab8 | 2754 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2755 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2756 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2757 | kcontrol->id.name); |
2758 | ||
2b97eabc | 2759 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2760 | connect = !!val; |
2b97eabc RP |
2761 | |
2762 | if (invert) | |
a7a4ac86 | 2763 | val = max - val; |
e9cf7049 | 2764 | mask = mask << shift; |
2b97eabc | 2765 | val = val << shift; |
2b97eabc | 2766 | |
3cd04343 | 2767 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2768 | |
eee5d7f9 | 2769 | change = snd_soc_test_bits(codec, reg, mask, val); |
97404f2e | 2770 | if (change) { |
ce6cfaf1 LPC |
2771 | update.kcontrol = kcontrol; |
2772 | update.reg = reg; | |
2773 | update.mask = mask; | |
2774 | update.val = val; | |
97404f2e | 2775 | |
564c6504 | 2776 | card->update = &update; |
97404f2e | 2777 | |
95dd5cd6 | 2778 | soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2779 | |
564c6504 | 2780 | card->update = NULL; |
283375ce MB |
2781 | } |
2782 | ||
a73fb2df | 2783 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2784 | return change; |
2b97eabc RP |
2785 | } |
2786 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2787 | ||
2788 | /** | |
2789 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2790 | * @kcontrol: mixer control | |
ac11a2b3 | 2791 | * @ucontrol: control element information |
2b97eabc RP |
2792 | * |
2793 | * Callback to get the value of a dapm enumerated double mixer control. | |
2794 | * | |
2795 | * Returns 0 for success. | |
2796 | */ | |
2797 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2798 | struct snd_ctl_elem_value *ucontrol) | |
2799 | { | |
eee5d7f9 | 2800 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2801 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2802 | unsigned int val; |
2b97eabc | 2803 | |
eee5d7f9 | 2804 | val = snd_soc_read(codec, e->reg); |
86767b7d | 2805 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2806 | if (e->shift_l != e->shift_r) |
2807 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2808 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2809 | |
2810 | return 0; | |
2811 | } | |
2812 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2813 | ||
2814 | /** | |
2815 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2816 | * @kcontrol: mixer control | |
ac11a2b3 | 2817 | * @ucontrol: control element information |
2b97eabc RP |
2818 | * |
2819 | * Callback to set the value of a dapm enumerated double mixer control. | |
2820 | * | |
2821 | * Returns 0 for success. | |
2822 | */ | |
2823 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2824 | struct snd_ctl_elem_value *ucontrol) | |
2825 | { | |
cf7c1de2 | 2826 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2827 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2828 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2829 | unsigned int val, mux, change; |
86767b7d | 2830 | unsigned int mask; |
97404f2e | 2831 | struct snd_soc_dapm_update update; |
2b97eabc | 2832 | |
f8ba0b7b | 2833 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2834 | return -EINVAL; |
2835 | mux = ucontrol->value.enumerated.item[0]; | |
2836 | val = mux << e->shift_l; | |
86767b7d | 2837 | mask = e->mask << e->shift_l; |
2b97eabc | 2838 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2839 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2840 | return -EINVAL; |
2841 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2842 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2843 | } |
2844 | ||
3cd04343 | 2845 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2846 | |
eee5d7f9 | 2847 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2848 | if (change) { |
ce6cfaf1 LPC |
2849 | update.kcontrol = kcontrol; |
2850 | update.reg = e->reg; | |
2851 | update.mask = mask; | |
2852 | update.val = val; | |
564c6504 | 2853 | card->update = &update; |
1642e3d4 | 2854 | |
95dd5cd6 | 2855 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
1642e3d4 | 2856 | |
564c6504 | 2857 | card->update = NULL; |
fafd2176 | 2858 | } |
2b97eabc | 2859 | |
a73fb2df | 2860 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2861 | return change; |
2b97eabc RP |
2862 | } |
2863 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2864 | ||
d2b247a8 MB |
2865 | /** |
2866 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2867 | * @kcontrol: mixer control | |
2868 | * @ucontrol: control element information | |
2869 | * | |
2870 | * Returns 0 for success. | |
2871 | */ | |
2872 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2873 | struct snd_ctl_elem_value *ucontrol) | |
2874 | { | |
cf7c1de2 | 2875 | ucontrol->value.enumerated.item[0] = dapm_kcontrol_get_value(kcontrol); |
d2b247a8 MB |
2876 | return 0; |
2877 | } | |
2878 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2879 | ||
2880 | /** | |
2881 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2882 | * @kcontrol: mixer control | |
2883 | * @ucontrol: control element information | |
2884 | * | |
2885 | * Returns 0 for success. | |
2886 | */ | |
2887 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2888 | struct snd_ctl_elem_value *ucontrol) | |
2889 | { | |
cf7c1de2 | 2890 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2891 | struct snd_soc_card *card = codec->card; |
cf7c1de2 | 2892 | unsigned int value; |
d2b247a8 MB |
2893 | struct soc_enum *e = |
2894 | (struct soc_enum *)kcontrol->private_value; | |
2895 | int change; | |
d2b247a8 MB |
2896 | |
2897 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2898 | return -EINVAL; | |
2899 | ||
3cd04343 | 2900 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 | 2901 | |
cf7c1de2 LPC |
2902 | value = ucontrol->value.enumerated.item[0]; |
2903 | change = dapm_kcontrol_set_value(kcontrol, value); | |
2904 | if (change) | |
2905 | soc_dapm_mux_update_power(card, kcontrol, value, e); | |
d2b247a8 | 2906 | |
a73fb2df | 2907 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2908 | return change; |
d2b247a8 MB |
2909 | } |
2910 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2911 | ||
2e72f8e3 PU |
2912 | /** |
2913 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2914 | * callback | |
2915 | * @kcontrol: mixer control | |
2916 | * @ucontrol: control element information | |
2917 | * | |
2918 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2919 | * | |
2920 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2921 | * used for handling bitfield coded enumeration for example. | |
2922 | * | |
2923 | * Returns 0 for success. | |
2924 | */ | |
2925 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2926 | struct snd_ctl_elem_value *ucontrol) | |
2927 | { | |
eee5d7f9 | 2928 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
74155556 | 2929 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2930 | unsigned int reg_val, val, mux; |
2e72f8e3 | 2931 | |
eee5d7f9 | 2932 | reg_val = snd_soc_read(codec, e->reg); |
2e72f8e3 PU |
2933 | val = (reg_val >> e->shift_l) & e->mask; |
2934 | for (mux = 0; mux < e->max; mux++) { | |
2935 | if (val == e->values[mux]) | |
2936 | break; | |
2937 | } | |
2938 | ucontrol->value.enumerated.item[0] = mux; | |
2939 | if (e->shift_l != e->shift_r) { | |
2940 | val = (reg_val >> e->shift_r) & e->mask; | |
2941 | for (mux = 0; mux < e->max; mux++) { | |
2942 | if (val == e->values[mux]) | |
2943 | break; | |
2944 | } | |
2945 | ucontrol->value.enumerated.item[1] = mux; | |
2946 | } | |
2947 | ||
2948 | return 0; | |
2949 | } | |
2950 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2951 | ||
2952 | /** | |
2953 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2954 | * callback | |
2955 | * @kcontrol: mixer control | |
2956 | * @ucontrol: control element information | |
2957 | * | |
2958 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2959 | * | |
2960 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2961 | * used for handling bitfield coded enumeration for example. | |
2962 | * | |
2963 | * Returns 0 for success. | |
2964 | */ | |
2965 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2966 | struct snd_ctl_elem_value *ucontrol) | |
2967 | { | |
cf7c1de2 | 2968 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2969 | struct snd_soc_card *card = codec->card; |
74155556 | 2970 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2971 | unsigned int val, mux, change; |
46f5822f | 2972 | unsigned int mask; |
97404f2e | 2973 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
2974 | |
2975 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2976 | return -EINVAL; | |
2977 | mux = ucontrol->value.enumerated.item[0]; | |
2978 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2979 | mask = e->mask << e->shift_l; | |
2980 | if (e->shift_l != e->shift_r) { | |
2981 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2982 | return -EINVAL; | |
2983 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2984 | mask |= e->mask << e->shift_r; | |
2985 | } | |
2986 | ||
3cd04343 | 2987 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2988 | |
eee5d7f9 | 2989 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2990 | if (change) { |
ce6cfaf1 LPC |
2991 | update.kcontrol = kcontrol; |
2992 | update.reg = e->reg; | |
2993 | update.mask = mask; | |
2994 | update.val = val; | |
564c6504 | 2995 | card->update = &update; |
1642e3d4 | 2996 | |
95dd5cd6 | 2997 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
fafd2176 | 2998 | |
564c6504 | 2999 | card->update = NULL; |
fafd2176 | 3000 | } |
2e72f8e3 | 3001 | |
a73fb2df | 3002 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 3003 | return change; |
2e72f8e3 PU |
3004 | } |
3005 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
3006 | ||
8b37dbd2 MB |
3007 | /** |
3008 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3009 | * | |
3010 | * @kcontrol: mixer control | |
3011 | * @uinfo: control element information | |
3012 | * | |
3013 | * Callback to provide information about a pin switch control. | |
3014 | */ | |
3015 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3016 | struct snd_ctl_elem_info *uinfo) | |
3017 | { | |
3018 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3019 | uinfo->count = 1; | |
3020 | uinfo->value.integer.min = 0; | |
3021 | uinfo->value.integer.max = 1; | |
3022 | ||
3023 | return 0; | |
3024 | } | |
3025 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3026 | ||
3027 | /** | |
3028 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3029 | * | |
3030 | * @kcontrol: mixer control | |
3031 | * @ucontrol: Value | |
3032 | */ | |
3033 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3034 | struct snd_ctl_elem_value *ucontrol) | |
3035 | { | |
48a8c394 | 3036 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3037 | const char *pin = (const char *)kcontrol->private_value; |
3038 | ||
3cd04343 | 3039 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3040 | |
3041 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3042 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3043 | |
a73fb2df | 3044 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3045 | |
3046 | return 0; | |
3047 | } | |
3048 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3049 | ||
3050 | /** | |
3051 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3052 | * | |
3053 | * @kcontrol: mixer control | |
3054 | * @ucontrol: Value | |
3055 | */ | |
3056 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3057 | struct snd_ctl_elem_value *ucontrol) | |
3058 | { | |
48a8c394 | 3059 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3060 | const char *pin = (const char *)kcontrol->private_value; |
3061 | ||
3cd04343 | 3062 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3063 | |
3064 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3065 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3066 | else |
48a8c394 | 3067 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3068 | |
a73fb2df | 3069 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3070 | |
a73fb2df | 3071 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3072 | return 0; |
3073 | } | |
3074 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3075 | ||
5ba06fc9 MB |
3076 | static struct snd_soc_dapm_widget * |
3077 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3078 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3079 | { |
3080 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3081 | int ret; |
2b97eabc RP |
3082 | |
3083 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3084 | return NULL; |
2b97eabc | 3085 | |
62ea874a MB |
3086 | switch (w->id) { |
3087 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3088 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3089 | if (IS_ERR(w->regulator)) { | |
3090 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3091 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3092 | w->name, ret); |
5ba06fc9 | 3093 | return NULL; |
62ea874a | 3094 | } |
8784c77a MB |
3095 | |
3096 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
3097 | ret = regulator_allow_bypass(w->regulator, true); | |
3098 | if (ret != 0) | |
3099 | dev_warn(w->dapm->dev, | |
3100 | "ASoC: Failed to unbypass %s: %d\n", | |
3101 | w->name, ret); | |
3102 | } | |
62ea874a | 3103 | break; |
d7e7eb91 | 3104 | case snd_soc_dapm_clock_supply: |
165961ef | 3105 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3106 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3107 | if (IS_ERR(w->clk)) { |
3108 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3109 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3110 | w->name, ret); |
3111 | return NULL; | |
3112 | } | |
ec02995a MB |
3113 | #else |
3114 | return NULL; | |
3115 | #endif | |
d7e7eb91 | 3116 | break; |
62ea874a MB |
3117 | default: |
3118 | break; | |
3119 | } | |
2b97eabc | 3120 | |
88e8b9a8 | 3121 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3122 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3123 | dapm->codec->name_prefix, widget->name); | |
3124 | else | |
3125 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3126 | ||
ead9b919 JN |
3127 | if (w->name == NULL) { |
3128 | kfree(w); | |
5ba06fc9 | 3129 | return NULL; |
ead9b919 | 3130 | } |
ead9b919 | 3131 | |
7ca3a18b MB |
3132 | switch (w->id) { |
3133 | case snd_soc_dapm_switch: | |
3134 | case snd_soc_dapm_mixer: | |
3135 | case snd_soc_dapm_mixer_named_ctl: | |
3136 | w->power_check = dapm_generic_check_power; | |
3137 | break; | |
3138 | case snd_soc_dapm_mux: | |
3139 | case snd_soc_dapm_virt_mux: | |
3140 | case snd_soc_dapm_value_mux: | |
3141 | w->power_check = dapm_generic_check_power; | |
3142 | break; | |
4616274d | 3143 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3144 | w->power_check = dapm_adc_check_power; |
3145 | break; | |
4616274d | 3146 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3147 | w->power_check = dapm_dac_check_power; |
3148 | break; | |
63c69a6e MB |
3149 | case snd_soc_dapm_adc: |
3150 | case snd_soc_dapm_aif_out: | |
3151 | case snd_soc_dapm_dac: | |
3152 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3153 | case snd_soc_dapm_pga: |
3154 | case snd_soc_dapm_out_drv: | |
3155 | case snd_soc_dapm_input: | |
3156 | case snd_soc_dapm_output: | |
3157 | case snd_soc_dapm_micbias: | |
3158 | case snd_soc_dapm_spk: | |
3159 | case snd_soc_dapm_hp: | |
3160 | case snd_soc_dapm_mic: | |
3161 | case snd_soc_dapm_line: | |
c74184ed | 3162 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3163 | w->power_check = dapm_generic_check_power; |
3164 | break; | |
3165 | case snd_soc_dapm_supply: | |
62ea874a | 3166 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3167 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3168 | w->power_check = dapm_supply_check_power; |
3169 | break; | |
3170 | default: | |
3171 | w->power_check = dapm_always_on_check_power; | |
3172 | break; | |
3173 | } | |
3174 | ||
ce6120cc LG |
3175 | w->dapm = dapm; |
3176 | w->codec = dapm->codec; | |
b7950641 | 3177 | w->platform = dapm->platform; |
2b97eabc RP |
3178 | INIT_LIST_HEAD(&w->sources); |
3179 | INIT_LIST_HEAD(&w->sinks); | |
3180 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3181 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3182 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3183 | |
3184 | /* machine layer set ups unconnected pins and insertions */ | |
3185 | w->connected = 1; | |
5ba06fc9 | 3186 | return w; |
2b97eabc | 3187 | } |
2b97eabc | 3188 | |
4ba1327a MB |
3189 | /** |
3190 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3191 | * @dapm: DAPM context |
4ba1327a MB |
3192 | * @widget: widget array |
3193 | * @num: number of widgets | |
3194 | * | |
3195 | * Creates new DAPM controls based upon the templates. | |
3196 | * | |
3197 | * Returns 0 for success else error. | |
3198 | */ | |
ce6120cc | 3199 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3200 | const struct snd_soc_dapm_widget *widget, |
3201 | int num) | |
3202 | { | |
5ba06fc9 MB |
3203 | struct snd_soc_dapm_widget *w; |
3204 | int i; | |
60884c27 | 3205 | int ret = 0; |
4ba1327a | 3206 | |
a73fb2df | 3207 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3208 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3209 | w = snd_soc_dapm_new_control(dapm, widget); |
3210 | if (!w) { | |
f7d41ae8 | 3211 | dev_err(dapm->dev, |
5ba06fc9 MB |
3212 | "ASoC: Failed to create DAPM control %s\n", |
3213 | widget->name); | |
60884c27 DC |
3214 | ret = -ENOMEM; |
3215 | break; | |
b8b33cb5 | 3216 | } |
4ba1327a MB |
3217 | widget++; |
3218 | } | |
a73fb2df | 3219 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3220 | return ret; |
4ba1327a MB |
3221 | } |
3222 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3223 | ||
c74184ed MB |
3224 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3225 | struct snd_kcontrol *kcontrol, int event) | |
3226 | { | |
3227 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3228 | struct snd_soc_dai *source, *sink; | |
3229 | const struct snd_soc_pcm_stream *config = w->params; | |
3230 | struct snd_pcm_substream substream; | |
9747cec2 | 3231 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3232 | u64 fmt; |
3233 | int ret; | |
3234 | ||
3235 | BUG_ON(!config); | |
3236 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3237 | ||
3238 | /* We only support a single source and sink, pick the first */ | |
3239 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3240 | list_sink); | |
3241 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3242 | list_source); | |
3243 | ||
3244 | BUG_ON(!source_p || !sink_p); | |
3245 | BUG_ON(!sink_p->source || !source_p->sink); | |
3246 | BUG_ON(!source_p->source || !sink_p->sink); | |
3247 | ||
3248 | source = source_p->source->priv; | |
3249 | sink = sink_p->sink->priv; | |
3250 | ||
3251 | /* Be a little careful as we don't want to overflow the mask array */ | |
3252 | if (config->formats) { | |
3253 | fmt = ffs(config->formats) - 1; | |
3254 | } else { | |
30a6a1a4 | 3255 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3256 | config->formats); |
3257 | fmt = 0; | |
3258 | } | |
3259 | ||
3260 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3261 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3262 | if (!params) { | |
3263 | ret = -ENOMEM; | |
3264 | goto out; | |
3265 | } | |
3266 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3267 | |
9747cec2 | 3268 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3269 | config->rate_min; |
9747cec2 | 3270 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3271 | config->rate_max; |
3272 | ||
9747cec2 | 3273 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3274 | = config->channels_min; |
9747cec2 | 3275 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3276 | = config->channels_max; |
3277 | ||
3278 | memset(&substream, 0, sizeof(substream)); | |
3279 | ||
3280 | switch (event) { | |
3281 | case SND_SOC_DAPM_PRE_PMU: | |
3282 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3283 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3284 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3285 | params, source); |
c74184ed MB |
3286 | if (ret != 0) { |
3287 | dev_err(source->dev, | |
30a6a1a4 | 3288 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3289 | goto out; |
c74184ed MB |
3290 | } |
3291 | } | |
3292 | ||
3293 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3294 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3295 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3296 | sink); |
3297 | if (ret != 0) { | |
3298 | dev_err(sink->dev, | |
30a6a1a4 | 3299 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3300 | goto out; |
c74184ed MB |
3301 | } |
3302 | } | |
3303 | break; | |
3304 | ||
3305 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3306 | ret = snd_soc_dai_digital_mute(sink, 0, |
3307 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3308 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3309 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3310 | ret = 0; |
c74184ed MB |
3311 | break; |
3312 | ||
3313 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3314 | ret = snd_soc_dai_digital_mute(sink, 1, |
3315 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3316 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3317 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3318 | ret = 0; |
c74184ed MB |
3319 | break; |
3320 | ||
3321 | default: | |
3322 | BUG(); | |
3323 | return -EINVAL; | |
3324 | } | |
3325 | ||
9747cec2 MB |
3326 | out: |
3327 | kfree(params); | |
3328 | return ret; | |
c74184ed MB |
3329 | } |
3330 | ||
3331 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3332 | const struct snd_soc_pcm_stream *params, | |
3333 | struct snd_soc_dapm_widget *source, | |
3334 | struct snd_soc_dapm_widget *sink) | |
3335 | { | |
3336 | struct snd_soc_dapm_route routes[2]; | |
3337 | struct snd_soc_dapm_widget template; | |
3338 | struct snd_soc_dapm_widget *w; | |
3339 | size_t len; | |
3340 | char *link_name; | |
3341 | ||
3342 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3343 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3344 | if (!link_name) | |
3345 | return -ENOMEM; | |
3346 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3347 | ||
3348 | memset(&template, 0, sizeof(template)); | |
3349 | template.reg = SND_SOC_NOPM; | |
3350 | template.id = snd_soc_dapm_dai_link; | |
3351 | template.name = link_name; | |
3352 | template.event = snd_soc_dai_link_event; | |
3353 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3354 | SND_SOC_DAPM_PRE_PMD; | |
3355 | ||
30a6a1a4 | 3356 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3357 | |
3358 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3359 | if (!w) { | |
30a6a1a4 | 3360 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3361 | link_name); |
3362 | return -ENOMEM; | |
3363 | } | |
3364 | ||
3365 | w->params = params; | |
3366 | ||
3367 | memset(&routes, 0, sizeof(routes)); | |
3368 | ||
3369 | routes[0].source = source->name; | |
3370 | routes[0].sink = link_name; | |
3371 | routes[1].source = link_name; | |
3372 | routes[1].sink = sink->name; | |
3373 | ||
3374 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3375 | ARRAY_SIZE(routes)); | |
3376 | } | |
3377 | ||
888df395 MB |
3378 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3379 | struct snd_soc_dai *dai) | |
2b97eabc | 3380 | { |
888df395 | 3381 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3382 | struct snd_soc_dapm_widget *w; |
3383 | ||
888df395 MB |
3384 | WARN_ON(dapm->dev != dai->dev); |
3385 | ||
3386 | memset(&template, 0, sizeof(template)); | |
3387 | template.reg = SND_SOC_NOPM; | |
3388 | ||
3389 | if (dai->driver->playback.stream_name) { | |
4616274d | 3390 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3391 | template.name = dai->driver->playback.stream_name; |
3392 | template.sname = dai->driver->playback.stream_name; | |
3393 | ||
30a6a1a4 | 3394 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3395 | template.name); |
3396 | ||
3397 | w = snd_soc_dapm_new_control(dapm, &template); | |
3398 | if (!w) { | |
30a6a1a4 | 3399 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3400 | dai->driver->playback.stream_name); |
3401 | } | |
3402 | ||
3403 | w->priv = dai; | |
3404 | dai->playback_widget = w; | |
3405 | } | |
3406 | ||
3407 | if (dai->driver->capture.stream_name) { | |
4616274d | 3408 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3409 | template.name = dai->driver->capture.stream_name; |
3410 | template.sname = dai->driver->capture.stream_name; | |
3411 | ||
30a6a1a4 | 3412 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3413 | template.name); |
3414 | ||
3415 | w = snd_soc_dapm_new_control(dapm, &template); | |
3416 | if (!w) { | |
30a6a1a4 | 3417 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3418 | dai->driver->capture.stream_name); |
3419 | } | |
3420 | ||
3421 | w->priv = dai; | |
3422 | dai->capture_widget = w; | |
3423 | } | |
3424 | ||
3425 | return 0; | |
3426 | } | |
3427 | ||
3428 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3429 | { | |
3430 | struct snd_soc_dapm_widget *dai_w, *w; | |
3431 | struct snd_soc_dai *dai; | |
3432 | struct snd_soc_dapm_route r; | |
3433 | ||
3434 | memset(&r, 0, sizeof(r)); | |
3435 | ||
3436 | /* For each DAI widget... */ | |
3437 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3438 | switch (dai_w->id) { |
3439 | case snd_soc_dapm_dai_in: | |
3440 | case snd_soc_dapm_dai_out: | |
3441 | break; | |
3442 | default: | |
2b97eabc | 3443 | continue; |
4616274d | 3444 | } |
888df395 MB |
3445 | |
3446 | dai = dai_w->priv; | |
3447 | ||
3448 | /* ...find all widgets with the same stream and link them */ | |
3449 | list_for_each_entry(w, &card->widgets, list) { | |
3450 | if (w->dapm != dai_w->dapm) | |
3451 | continue; | |
3452 | ||
4616274d MB |
3453 | switch (w->id) { |
3454 | case snd_soc_dapm_dai_in: | |
3455 | case snd_soc_dapm_dai_out: | |
888df395 | 3456 | continue; |
4616274d MB |
3457 | default: |
3458 | break; | |
3459 | } | |
888df395 MB |
3460 | |
3461 | if (!w->sname) | |
3462 | continue; | |
3463 | ||
3464 | if (dai->driver->playback.stream_name && | |
3465 | strstr(w->sname, | |
3466 | dai->driver->playback.stream_name)) { | |
3467 | r.source = dai->playback_widget->name; | |
3468 | r.sink = w->name; | |
3469 | dev_dbg(dai->dev, "%s -> %s\n", | |
3470 | r.source, r.sink); | |
3471 | ||
3472 | snd_soc_dapm_add_route(w->dapm, &r); | |
3473 | } | |
3474 | ||
3475 | if (dai->driver->capture.stream_name && | |
3476 | strstr(w->sname, | |
3477 | dai->driver->capture.stream_name)) { | |
3478 | r.source = w->name; | |
3479 | r.sink = dai->capture_widget->name; | |
3480 | dev_dbg(dai->dev, "%s -> %s\n", | |
3481 | r.source, r.sink); | |
3482 | ||
3483 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3484 | } |
3485 | } | |
3486 | } | |
2b97eabc | 3487 | |
888df395 MB |
3488 | return 0; |
3489 | } | |
64a648c2 | 3490 | |
d9b0951b LG |
3491 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3492 | int event) | |
2b97eabc | 3493 | { |
7bd3a6f3 | 3494 | |
d9b0951b LG |
3495 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3496 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3497 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3498 | |
d9b0951b LG |
3499 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3500 | w_cpu = cpu_dai->playback_widget; | |
3501 | w_codec = codec_dai->playback_widget; | |
3502 | } else { | |
3503 | w_cpu = cpu_dai->capture_widget; | |
3504 | w_codec = codec_dai->capture_widget; | |
3505 | } | |
2b97eabc | 3506 | |
d9b0951b | 3507 | if (w_cpu) { |
fe360685 | 3508 | |
d9b0951b LG |
3509 | dapm_mark_dirty(w_cpu, "stream event"); |
3510 | ||
3511 | switch (event) { | |
3512 | case SND_SOC_DAPM_STREAM_START: | |
3513 | w_cpu->active = 1; | |
3514 | break; | |
3515 | case SND_SOC_DAPM_STREAM_STOP: | |
3516 | w_cpu->active = 0; | |
3517 | break; | |
3518 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3519 | case SND_SOC_DAPM_STREAM_RESUME: | |
3520 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3521 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3522 | break; | |
3523 | } | |
3524 | } | |
3525 | ||
3526 | if (w_codec) { | |
3527 | ||
3528 | dapm_mark_dirty(w_codec, "stream event"); | |
3529 | ||
3530 | switch (event) { | |
3531 | case SND_SOC_DAPM_STREAM_START: | |
3532 | w_codec->active = 1; | |
3533 | break; | |
3534 | case SND_SOC_DAPM_STREAM_STOP: | |
3535 | w_codec->active = 0; | |
3536 | break; | |
3537 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3538 | case SND_SOC_DAPM_STREAM_RESUME: | |
3539 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3540 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3541 | break; | |
3542 | } | |
2b97eabc | 3543 | } |
2b97eabc | 3544 | |
95dd5cd6 | 3545 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3546 | } |
3547 | ||
3548 | /** | |
3549 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3550 | * @rtd: PCM runtime data | |
3551 | * @stream: stream name | |
3552 | * @event: stream event | |
3553 | * | |
3554 | * Sends a stream event to the dapm core. The core then makes any | |
3555 | * necessary widget power changes. | |
3556 | * | |
3557 | * Returns 0 for success else error. | |
3558 | */ | |
d9b0951b LG |
3559 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3560 | int event) | |
ce6120cc | 3561 | { |
a73fb2df | 3562 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3563 | |
3cd04343 | 3564 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3565 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3566 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3567 | } |
2b97eabc RP |
3568 | |
3569 | /** | |
a5302181 | 3570 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3571 | * @dapm: DAPM context |
a5302181 | 3572 | * @pin: pin name |
2b97eabc | 3573 | * |
74b8f955 | 3574 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3575 | * a valid audio route and active audio stream. |
3576 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3577 | * do any widget power switching. | |
2b97eabc | 3578 | */ |
ce6120cc | 3579 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3580 | { |
ce6120cc | 3581 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3582 | } |
3583 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3584 | |
da34183e MB |
3585 | /** |
3586 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3587 | * @dapm: DAPM context |
da34183e MB |
3588 | * @pin: pin name |
3589 | * | |
3590 | * Enables input/output pin regardless of any other state. This is | |
3591 | * intended for use with microphone bias supplies used in microphone | |
3592 | * jack detection. | |
3593 | * | |
3594 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3595 | * do any widget power switching. | |
3596 | */ | |
ce6120cc LG |
3597 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3598 | const char *pin) | |
da34183e | 3599 | { |
91a5fca4 | 3600 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3601 | |
91a5fca4 | 3602 | if (!w) { |
30a6a1a4 | 3603 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3604 | return -EINVAL; |
0d86733c MB |
3605 | } |
3606 | ||
30a6a1a4 | 3607 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3608 | w->connected = 1; |
3609 | w->force = 1; | |
75c1f891 | 3610 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3611 | |
91a5fca4 | 3612 | return 0; |
da34183e MB |
3613 | } |
3614 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3615 | ||
a5302181 LG |
3616 | /** |
3617 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3618 | * @dapm: DAPM context |
a5302181 LG |
3619 | * @pin: pin name |
3620 | * | |
74b8f955 | 3621 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3622 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3623 | * do any widget power switching. | |
3624 | */ | |
ce6120cc LG |
3625 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3626 | const char *pin) | |
a5302181 | 3627 | { |
ce6120cc | 3628 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3629 | } |
a5302181 | 3630 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3631 | |
5817b52a MB |
3632 | /** |
3633 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3634 | * @dapm: DAPM context |
5817b52a MB |
3635 | * @pin: pin name |
3636 | * | |
3637 | * Marks the specified pin as being not connected, disabling it along | |
3638 | * any parent or child widgets. At present this is identical to | |
3639 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3640 | * additional things such as disabling controls which only affect | |
3641 | * paths through the pin. | |
3642 | * | |
3643 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3644 | * do any widget power switching. | |
3645 | */ | |
ce6120cc | 3646 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3647 | { |
ce6120cc | 3648 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3649 | } |
3650 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3651 | ||
eeec12bf | 3652 | /** |
a5302181 | 3653 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3654 | * @dapm: DAPM context |
a5302181 | 3655 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3656 | * |
a5302181 | 3657 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3658 | * |
a5302181 | 3659 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3660 | */ |
ce6120cc LG |
3661 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3662 | const char *pin) | |
eeec12bf | 3663 | { |
91a5fca4 | 3664 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3665 | |
91a5fca4 LPC |
3666 | if (w) |
3667 | return w->connected; | |
a68b38ad | 3668 | |
eeec12bf GG |
3669 | return 0; |
3670 | } | |
a5302181 | 3671 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3672 | |
1547aba9 MB |
3673 | /** |
3674 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3675 | * @dapm: DAPM context |
1547aba9 MB |
3676 | * @pin: audio signal pin endpoint (or start point) |
3677 | * | |
3678 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3679 | * system is disabled a path between two endpoints flagged as ignoring | |
3680 | * suspend will not be disabled. The path must already be enabled via | |
3681 | * normal means at suspend time, it will not be turned on if it was not | |
3682 | * already enabled. | |
3683 | */ | |
ce6120cc LG |
3684 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3685 | const char *pin) | |
1547aba9 | 3686 | { |
91a5fca4 | 3687 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3688 | |
91a5fca4 | 3689 | if (!w) { |
30a6a1a4 | 3690 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3691 | return -EINVAL; |
1547aba9 MB |
3692 | } |
3693 | ||
91a5fca4 LPC |
3694 | w->ignore_suspend = 1; |
3695 | ||
3696 | return 0; | |
1547aba9 MB |
3697 | } |
3698 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3699 | ||
1633281b SW |
3700 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3701 | struct snd_soc_dapm_widget *w) | |
3702 | { | |
3703 | struct snd_soc_dapm_path *p; | |
3704 | ||
3705 | list_for_each_entry(p, &card->paths, list) { | |
3706 | if ((p->source == w) || (p->sink == w)) { | |
3707 | dev_dbg(card->dev, | |
3708 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3709 | p->source->name, p->source->id, p->source->dapm, | |
3710 | p->sink->name, p->sink->id, p->sink->dapm); | |
3711 | ||
3712 | /* Connected to something other than the codec */ | |
3713 | if (p->source->dapm != p->sink->dapm) | |
3714 | return true; | |
3715 | /* | |
3716 | * Loopback connection from codec external pin to | |
3717 | * codec external pin | |
3718 | */ | |
3719 | if (p->sink->id == snd_soc_dapm_input) { | |
3720 | switch (p->source->id) { | |
3721 | case snd_soc_dapm_output: | |
3722 | case snd_soc_dapm_micbias: | |
3723 | return true; | |
3724 | default: | |
3725 | break; | |
3726 | } | |
3727 | } | |
3728 | } | |
3729 | } | |
3730 | ||
3731 | return false; | |
3732 | } | |
3733 | ||
3734 | /** | |
3735 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3736 | * @codec: The codec whose pins should be processed | |
3737 | * | |
3738 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3739 | * which are unused. Pins are used if they are connected externally to the | |
3740 | * codec, whether that be to some other device, or a loop-back connection to | |
3741 | * the codec itself. | |
3742 | */ | |
3743 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3744 | { | |
3745 | struct snd_soc_card *card = codec->card; | |
3746 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3747 | struct snd_soc_dapm_widget *w; | |
3748 | ||
30a6a1a4 | 3749 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3750 | &card->dapm, &codec->dapm); |
3751 | ||
3752 | list_for_each_entry(w, &card->widgets, list) { | |
3753 | if (w->dapm != dapm) | |
3754 | continue; | |
3755 | switch (w->id) { | |
3756 | case snd_soc_dapm_input: | |
3757 | case snd_soc_dapm_output: | |
3758 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3759 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3760 | w->name); |
3761 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3762 | dev_dbg(codec->dev, |
1633281b SW |
3763 | "... Not in map; disabling\n"); |
3764 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3765 | } | |
3766 | break; | |
3767 | default: | |
3768 | break; | |
3769 | } | |
3770 | } | |
3771 | } | |
3772 | ||
2b97eabc RP |
3773 | /** |
3774 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3775 | * @dapm: DAPM context |
2b97eabc RP |
3776 | * |
3777 | * Free all dapm widgets and resources. | |
3778 | */ | |
ce6120cc | 3779 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3780 | { |
ce6120cc | 3781 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3782 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3783 | dapm_free_widgets(dapm); |
7be31be8 | 3784 | list_del(&dapm->list); |
2b97eabc RP |
3785 | } |
3786 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3787 | ||
ce6120cc | 3788 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3789 | { |
01005a72 | 3790 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3791 | struct snd_soc_dapm_widget *w; |
3792 | LIST_HEAD(down_list); | |
3793 | int powerdown = 0; | |
3794 | ||
01005a72 LG |
3795 | mutex_lock(&card->dapm_mutex); |
3796 | ||
97c866de JN |
3797 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3798 | if (w->dapm != dapm) | |
3799 | continue; | |
51737470 | 3800 | if (w->power) { |
828a842f | 3801 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3802 | w->power = 0; |
51737470 MB |
3803 | powerdown = 1; |
3804 | } | |
3805 | } | |
3806 | ||
3807 | /* If there were no widgets to power down we're already in | |
3808 | * standby. | |
3809 | */ | |
3810 | if (powerdown) { | |
7679e42e MB |
3811 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3812 | snd_soc_dapm_set_bias_level(dapm, | |
3813 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3814 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3815 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3816 | snd_soc_dapm_set_bias_level(dapm, | |
3817 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3818 | } |
01005a72 LG |
3819 | |
3820 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3821 | } |
3822 | ||
3823 | /* | |
3824 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3825 | */ | |
3826 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3827 | { | |
3828 | struct snd_soc_codec *codec; | |
3829 | ||
445632ad | 3830 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3831 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3832 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3833 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3834 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3835 | } |
51737470 MB |
3836 | } |
3837 | ||
2b97eabc | 3838 | /* Module information */ |
d331124d | 3839 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3840 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3841 | MODULE_LICENSE("GPL"); |