Commit | Line | Data |
---|---|---|
2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
57295073 LPC |
50 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
51 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
52 | const char *control, | |
53 | int (*connected)(struct snd_soc_dapm_widget *source, | |
54 | struct snd_soc_dapm_widget *sink)); | |
55 | static struct snd_soc_dapm_widget * | |
56 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
57 | const struct snd_soc_dapm_widget *widget); | |
58 | ||
2b97eabc RP |
59 | /* dapm power sequences - make this per codec in the future */ |
60 | static int dapm_up_seq[] = { | |
38357ab2 | 61 | [snd_soc_dapm_pre] = 0, |
62ea874a | 62 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 63 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
64 | [snd_soc_dapm_supply] = 2, |
65 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 66 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
67 | [snd_soc_dapm_dai_in] = 4, |
68 | [snd_soc_dapm_dai_out] = 4, | |
69 | [snd_soc_dapm_aif_in] = 4, | |
70 | [snd_soc_dapm_aif_out] = 4, | |
71 | [snd_soc_dapm_mic] = 5, | |
72 | [snd_soc_dapm_mux] = 6, | |
73 | [snd_soc_dapm_virt_mux] = 6, | |
74 | [snd_soc_dapm_value_mux] = 6, | |
75 | [snd_soc_dapm_dac] = 7, | |
76 | [snd_soc_dapm_switch] = 8, | |
77 | [snd_soc_dapm_mixer] = 8, | |
78 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
79 | [snd_soc_dapm_pga] = 9, | |
80 | [snd_soc_dapm_adc] = 10, | |
81 | [snd_soc_dapm_out_drv] = 11, | |
82 | [snd_soc_dapm_hp] = 11, | |
83 | [snd_soc_dapm_spk] = 11, | |
84 | [snd_soc_dapm_line] = 11, | |
85 | [snd_soc_dapm_kcontrol] = 12, | |
86 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 87 | }; |
ca9c1aae | 88 | |
2b97eabc | 89 | static int dapm_down_seq[] = { |
38357ab2 | 90 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
91 | [snd_soc_dapm_kcontrol] = 1, |
92 | [snd_soc_dapm_adc] = 2, | |
93 | [snd_soc_dapm_hp] = 3, | |
94 | [snd_soc_dapm_spk] = 3, | |
95 | [snd_soc_dapm_line] = 3, | |
96 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 97 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 98 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 99 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
100 | [snd_soc_dapm_mixer] = 5, |
101 | [snd_soc_dapm_dac] = 6, | |
102 | [snd_soc_dapm_mic] = 7, | |
103 | [snd_soc_dapm_micbias] = 8, | |
104 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 105 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 106 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
107 | [snd_soc_dapm_aif_in] = 10, |
108 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
109 | [snd_soc_dapm_dai_in] = 10, |
110 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 111 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 112 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
113 | [snd_soc_dapm_clock_supply] = 13, |
114 | [snd_soc_dapm_regulator_supply] = 13, | |
115 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
116 | }; |
117 | ||
12ef193d | 118 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
119 | { |
120 | if (pop_time) | |
121 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
122 | } | |
123 | ||
fd8d3bc0 | 124 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
125 | { |
126 | va_list args; | |
fd8d3bc0 | 127 | char *buf; |
15e4c72f | 128 | |
fd8d3bc0 JN |
129 | if (!pop_time) |
130 | return; | |
15e4c72f | 131 | |
fd8d3bc0 JN |
132 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
133 | if (buf == NULL) | |
134 | return; | |
15e4c72f | 135 | |
fd8d3bc0 JN |
136 | va_start(args, fmt); |
137 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 138 | dev_info(dev, "%s", buf); |
15e4c72f | 139 | va_end(args); |
fd8d3bc0 JN |
140 | |
141 | kfree(buf); | |
15e4c72f MB |
142 | } |
143 | ||
db432b41 MB |
144 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
145 | { | |
146 | return !list_empty(&w->dirty); | |
147 | } | |
148 | ||
25c77c5f | 149 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 150 | { |
75c1f891 MB |
151 | if (!dapm_dirty_widget(w)) { |
152 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
153 | w->name, reason); | |
db432b41 | 154 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 155 | } |
db432b41 | 156 | } |
25c77c5f | 157 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 158 | |
e2d32ff6 MB |
159 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
160 | { | |
161 | struct snd_soc_card *card = dapm->card; | |
162 | struct snd_soc_dapm_widget *w; | |
163 | ||
164 | mutex_lock(&card->dapm_mutex); | |
165 | ||
166 | list_for_each_entry(w, &card->widgets, list) { | |
167 | switch (w->id) { | |
168 | case snd_soc_dapm_input: | |
169 | case snd_soc_dapm_output: | |
170 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
171 | break; | |
172 | default: | |
173 | break; | |
174 | } | |
175 | } | |
176 | ||
177 | mutex_unlock(&card->dapm_mutex); | |
178 | } | |
179 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
180 | ||
2b97eabc | 181 | /* create a new dapm widget */ |
88cb4290 | 182 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
183 | const struct snd_soc_dapm_widget *_widget) |
184 | { | |
88cb4290 | 185 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
186 | } |
187 | ||
e84357f7 | 188 | struct dapm_kcontrol_data { |
cf7c1de2 | 189 | unsigned int value; |
57295073 | 190 | struct snd_soc_dapm_widget *widget; |
5106b92f | 191 | struct list_head paths; |
2c75bdf3 | 192 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
193 | }; |
194 | ||
195 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
196 | struct snd_kcontrol *kcontrol) | |
197 | { | |
198 | struct dapm_kcontrol_data *data; | |
57295073 | 199 | struct soc_mixer_control *mc; |
e84357f7 | 200 | |
2c75bdf3 | 201 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
e84357f7 LPC |
202 | if (!data) { |
203 | dev_err(widget->dapm->dev, | |
204 | "ASoC: can't allocate kcontrol data for %s\n", | |
205 | widget->name); | |
206 | return -ENOMEM; | |
207 | } | |
208 | ||
5106b92f | 209 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 210 | |
57295073 LPC |
211 | switch (widget->id) { |
212 | case snd_soc_dapm_switch: | |
213 | case snd_soc_dapm_mixer: | |
214 | case snd_soc_dapm_mixer_named_ctl: | |
215 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
216 | ||
217 | if (mc->autodisable) { | |
218 | struct snd_soc_dapm_widget template; | |
219 | ||
220 | memset(&template, 0, sizeof(template)); | |
221 | template.reg = mc->reg; | |
222 | template.mask = (1 << fls(mc->max)) - 1; | |
223 | template.shift = mc->shift; | |
224 | if (mc->invert) | |
225 | template.off_val = mc->max; | |
226 | else | |
227 | template.off_val = 0; | |
228 | template.on_val = template.off_val; | |
229 | template.id = snd_soc_dapm_kcontrol; | |
230 | template.name = kcontrol->id.name; | |
231 | ||
2daabd78 LPC |
232 | data->value = template.on_val; |
233 | ||
57295073 LPC |
234 | data->widget = snd_soc_dapm_new_control(widget->dapm, |
235 | &template); | |
236 | if (!data->widget) { | |
237 | kfree(data); | |
238 | return -ENOMEM; | |
239 | } | |
240 | } | |
241 | break; | |
242 | default: | |
243 | break; | |
244 | } | |
245 | ||
e84357f7 LPC |
246 | kcontrol->private_data = data; |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
252 | { | |
253 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
57295073 | 254 | kfree(data->widget); |
2c75bdf3 | 255 | kfree(data->wlist); |
e84357f7 LPC |
256 | kfree(data); |
257 | } | |
258 | ||
259 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
260 | const struct snd_kcontrol *kcontrol) | |
261 | { | |
262 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
263 | ||
2c75bdf3 | 264 | return data->wlist; |
e84357f7 LPC |
265 | } |
266 | ||
267 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
268 | struct snd_soc_dapm_widget *widget) | |
269 | { | |
270 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
271 | struct snd_soc_dapm_widget_list *new_wlist; |
272 | unsigned int n; | |
e84357f7 | 273 | |
2c75bdf3 LPC |
274 | if (data->wlist) |
275 | n = data->wlist->num_widgets + 1; | |
276 | else | |
277 | n = 1; | |
278 | ||
279 | new_wlist = krealloc(data->wlist, | |
280 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
281 | if (!new_wlist) | |
e84357f7 LPC |
282 | return -ENOMEM; |
283 | ||
2c75bdf3 LPC |
284 | new_wlist->widgets[n - 1] = widget; |
285 | new_wlist->num_widgets = n; | |
e84357f7 | 286 | |
2c75bdf3 | 287 | data->wlist = new_wlist; |
e84357f7 LPC |
288 | |
289 | return 0; | |
290 | } | |
291 | ||
5106b92f LPC |
292 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
293 | struct snd_soc_dapm_path *path) | |
294 | { | |
295 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
296 | ||
297 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
298 | |
299 | if (data->widget) { | |
300 | snd_soc_dapm_add_path(data->widget->dapm, data->widget, | |
301 | path->source, NULL, NULL); | |
302 | } | |
303 | } | |
304 | ||
305 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
306 | { | |
307 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
308 | ||
309 | if (!data->widget) | |
310 | return true; | |
311 | ||
312 | return data->widget->power; | |
5106b92f LPC |
313 | } |
314 | ||
315 | static struct list_head *dapm_kcontrol_get_path_list( | |
316 | const struct snd_kcontrol *kcontrol) | |
317 | { | |
318 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
319 | ||
320 | return &data->paths; | |
321 | } | |
322 | ||
323 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
324 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
325 | list_kcontrol) | |
326 | ||
cf7c1de2 LPC |
327 | static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
328 | { | |
329 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
330 | ||
331 | return data->value; | |
332 | } | |
333 | ||
334 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
335 | unsigned int value) | |
336 | { | |
337 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
338 | ||
339 | if (data->value == value) | |
340 | return false; | |
341 | ||
57295073 LPC |
342 | if (data->widget) |
343 | data->widget->on_val = value; | |
344 | ||
cf7c1de2 LPC |
345 | data->value = value; |
346 | ||
347 | return true; | |
348 | } | |
349 | ||
eee5d7f9 LPC |
350 | /** |
351 | * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol | |
352 | * @kcontrol: The kcontrol | |
353 | */ | |
354 | struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) | |
355 | { | |
e84357f7 | 356 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; |
eee5d7f9 LPC |
357 | } |
358 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); | |
359 | ||
6c120e19 LG |
360 | static void dapm_reset(struct snd_soc_card *card) |
361 | { | |
362 | struct snd_soc_dapm_widget *w; | |
363 | ||
364 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
365 | ||
366 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 367 | w->new_power = w->power; |
6c120e19 LG |
368 | w->power_checked = false; |
369 | w->inputs = -1; | |
370 | w->outputs = -1; | |
371 | } | |
372 | } | |
373 | ||
0445bdf4 LG |
374 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
375 | { | |
376 | if (w->codec) | |
377 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
378 | else if (w->platform) |
379 | return snd_soc_platform_read(w->platform, reg); | |
380 | ||
30a6a1a4 | 381 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 382 | return -1; |
0445bdf4 LG |
383 | } |
384 | ||
385 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
386 | { | |
387 | if (w->codec) | |
388 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
389 | else if (w->platform) |
390 | return snd_soc_platform_write(w->platform, reg, val); | |
391 | ||
30a6a1a4 | 392 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 393 | return -1; |
0445bdf4 LG |
394 | } |
395 | ||
49575fb5 LG |
396 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
397 | { | |
e06ab3b8 | 398 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
399 | mutex_lock(&w->codec->mutex); |
400 | else if (w->platform) | |
401 | mutex_lock(&w->platform->mutex); | |
402 | } | |
403 | ||
404 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
405 | { | |
e06ab3b8 | 406 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
407 | mutex_unlock(&w->codec->mutex); |
408 | else if (w->platform) | |
409 | mutex_unlock(&w->platform->mutex); | |
410 | } | |
411 | ||
eb270e98 MB |
412 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
413 | { | |
414 | if (dapm->codec && dapm->codec->using_regmap) | |
415 | regmap_async_complete(dapm->codec->control_data); | |
416 | } | |
417 | ||
49575fb5 | 418 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, |
0445bdf4 LG |
419 | unsigned short reg, unsigned int mask, unsigned int value) |
420 | { | |
8a713da8 | 421 | bool change; |
0445bdf4 LG |
422 | unsigned int old, new; |
423 | int ret; | |
424 | ||
8a713da8 | 425 | if (w->codec && w->codec->using_regmap) { |
eb270e98 MB |
426 | ret = regmap_update_bits_check_async(w->codec->control_data, |
427 | reg, mask, value, | |
428 | &change); | |
8a713da8 MB |
429 | if (ret != 0) |
430 | return ret; | |
431 | } else { | |
49575fb5 | 432 | soc_widget_lock(w); |
8a713da8 | 433 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
434 | if (ret < 0) { |
435 | soc_widget_unlock(w); | |
0445bdf4 | 436 | return ret; |
49575fb5 | 437 | } |
8a713da8 MB |
438 | |
439 | old = ret; | |
440 | new = (old & ~mask) | (value & mask); | |
441 | change = old != new; | |
442 | if (change) { | |
443 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
444 | if (ret < 0) { |
445 | soc_widget_unlock(w); | |
8a713da8 | 446 | return ret; |
49575fb5 | 447 | } |
8a713da8 | 448 | } |
49575fb5 | 449 | soc_widget_unlock(w); |
0445bdf4 LG |
450 | } |
451 | ||
452 | return change; | |
453 | } | |
454 | ||
452c5eaa MB |
455 | /** |
456 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 457 | * @dapm: DAPM context |
452c5eaa MB |
458 | * @level: level to configure |
459 | * | |
460 | * Configure the bias (power) levels for the SoC audio device. | |
461 | * | |
462 | * Returns 0 for success else error. | |
463 | */ | |
ed5a4c47 | 464 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 465 | enum snd_soc_bias_level level) |
452c5eaa | 466 | { |
ed5a4c47 | 467 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
468 | int ret = 0; |
469 | ||
84e90930 MB |
470 | trace_snd_soc_bias_level_start(card, level); |
471 | ||
f0fba2ad | 472 | if (card && card->set_bias_level) |
d4c6005f | 473 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
474 | if (ret != 0) |
475 | goto out; | |
476 | ||
cc4c670a MB |
477 | if (dapm->codec) { |
478 | if (dapm->codec->driver->set_bias_level) | |
479 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
480 | level); | |
d8c3bb91 MB |
481 | else |
482 | dapm->bias_level = level; | |
4e872a46 | 483 | } else if (!card || dapm != &card->dapm) { |
4123128e | 484 | dapm->bias_level = level; |
4e872a46 | 485 | } |
4123128e | 486 | |
171ec6b0 MB |
487 | if (ret != 0) |
488 | goto out; | |
489 | ||
490 | if (card && card->set_bias_level_post) | |
d4c6005f | 491 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 492 | out: |
84e90930 MB |
493 | trace_snd_soc_bias_level_done(card, level); |
494 | ||
452c5eaa MB |
495 | return ret; |
496 | } | |
497 | ||
2b97eabc RP |
498 | /* set up initial codec paths */ |
499 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
500 | struct snd_soc_dapm_path *p, int i) | |
501 | { | |
502 | switch (w->id) { | |
503 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
504 | case snd_soc_dapm_mixer: |
505 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 506 | int val; |
4eaa9819 | 507 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 508 | w->kcontrol_news[i].private_value; |
249ce138 | 509 | int reg = mc->reg; |
815ecf8d | 510 | unsigned int shift = mc->shift; |
4eaa9819 | 511 | int max = mc->max; |
815ecf8d JS |
512 | unsigned int mask = (1 << fls(max)) - 1; |
513 | unsigned int invert = mc->invert; | |
2b97eabc | 514 | |
249ce138 LPC |
515 | if (reg != SND_SOC_NOPM) { |
516 | val = soc_widget_read(w, reg); | |
517 | val = (val >> shift) & mask; | |
518 | if (invert) | |
519 | val = max - val; | |
520 | p->connect = !!val; | |
521 | } else { | |
522 | p->connect = 0; | |
523 | } | |
2b97eabc | 524 | |
2b97eabc RP |
525 | } |
526 | break; | |
527 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
528 | struct soc_enum *e = (struct soc_enum *) |
529 | w->kcontrol_news[i].private_value; | |
86767b7d | 530 | int val, item; |
2b97eabc | 531 | |
0445bdf4 | 532 | val = soc_widget_read(w, e->reg); |
86767b7d | 533 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 534 | |
58fee775 LPC |
535 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
536 | p->connect = 1; | |
537 | else | |
538 | p->connect = 0; | |
2b97eabc RP |
539 | } |
540 | break; | |
24ff33ac | 541 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
542 | struct soc_enum *e = (struct soc_enum *) |
543 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
544 | |
545 | p->connect = 0; | |
546 | /* since a virtual mux has no backing registers to | |
547 | * decide which path to connect, it will try to match | |
548 | * with the first enumeration. This is to ensure | |
549 | * that the default mux choice (the first) will be | |
550 | * correctly powered up during initialization. | |
551 | */ | |
552 | if (!strcmp(p->name, e->texts[0])) | |
553 | p->connect = 1; | |
554 | } | |
555 | break; | |
2e72f8e3 | 556 | case snd_soc_dapm_value_mux: { |
74155556 | 557 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 558 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
559 | int val, item; |
560 | ||
0445bdf4 | 561 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
562 | val = (val >> e->shift_l) & e->mask; |
563 | for (item = 0; item < e->max; item++) { | |
564 | if (val == e->values[item]) | |
565 | break; | |
566 | } | |
567 | ||
58fee775 LPC |
568 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
569 | p->connect = 1; | |
570 | else | |
571 | p->connect = 0; | |
2e72f8e3 PU |
572 | } |
573 | break; | |
56563100 | 574 | /* does not affect routing - always connected */ |
2b97eabc | 575 | case snd_soc_dapm_pga: |
d88429a6 | 576 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
577 | case snd_soc_dapm_output: |
578 | case snd_soc_dapm_adc: | |
579 | case snd_soc_dapm_input: | |
1ab97c8c | 580 | case snd_soc_dapm_siggen: |
2b97eabc RP |
581 | case snd_soc_dapm_dac: |
582 | case snd_soc_dapm_micbias: | |
583 | case snd_soc_dapm_vmid: | |
246d0a17 | 584 | case snd_soc_dapm_supply: |
62ea874a | 585 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 586 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
587 | case snd_soc_dapm_aif_in: |
588 | case snd_soc_dapm_aif_out: | |
4616274d MB |
589 | case snd_soc_dapm_dai_in: |
590 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
591 | case snd_soc_dapm_hp: |
592 | case snd_soc_dapm_mic: | |
593 | case snd_soc_dapm_spk: | |
594 | case snd_soc_dapm_line: | |
c74184ed | 595 | case snd_soc_dapm_dai_link: |
57295073 | 596 | case snd_soc_dapm_kcontrol: |
56563100 MB |
597 | p->connect = 1; |
598 | break; | |
599 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
600 | case snd_soc_dapm_pre: |
601 | case snd_soc_dapm_post: | |
602 | p->connect = 0; | |
603 | break; | |
604 | } | |
605 | } | |
606 | ||
74b8f955 | 607 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 608 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
609 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
610 | struct snd_soc_dapm_path *path, const char *control_name, | |
611 | const struct snd_kcontrol_new *kcontrol) | |
612 | { | |
613 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
614 | int i; | |
615 | ||
f8ba0b7b | 616 | for (i = 0; i < e->max; i++) { |
2b97eabc | 617 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 618 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
619 | list_add(&path->list_sink, &dest->sources); |
620 | list_add(&path->list_source, &src->sinks); | |
621 | path->name = (char*)e->texts[i]; | |
622 | dapm_set_path_status(dest, path, 0); | |
623 | return 0; | |
624 | } | |
625 | } | |
626 | ||
627 | return -ENODEV; | |
628 | } | |
629 | ||
74b8f955 | 630 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 631 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
632 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
633 | struct snd_soc_dapm_path *path, const char *control_name) | |
634 | { | |
635 | int i; | |
636 | ||
637 | /* search for mixer kcontrol */ | |
638 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 639 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 640 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
641 | list_add(&path->list_sink, &dest->sources); |
642 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 643 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
644 | dapm_set_path_status(dest, path, i); |
645 | return 0; | |
646 | } | |
647 | } | |
648 | return -ENODEV; | |
649 | } | |
650 | ||
af46800b | 651 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 652 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
653 | const struct snd_kcontrol_new *kcontrol_new, |
654 | struct snd_kcontrol **kcontrol) | |
655 | { | |
656 | struct snd_soc_dapm_widget *w; | |
657 | int i; | |
658 | ||
659 | *kcontrol = NULL; | |
660 | ||
661 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
662 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
663 | continue; | |
af46800b SW |
664 | for (i = 0; i < w->num_kcontrols; i++) { |
665 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
666 | if (w->kcontrols) | |
667 | *kcontrol = w->kcontrols[i]; | |
668 | return 1; | |
669 | } | |
670 | } | |
671 | } | |
672 | ||
673 | return 0; | |
674 | } | |
675 | ||
85762e71 SW |
676 | /* |
677 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
678 | * create it. Either way, add the widget into the control's widget list | |
679 | */ | |
680 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 681 | int kci) |
2b97eabc | 682 | { |
4b80b8c2 | 683 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 684 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 685 | const char *prefix; |
85762e71 SW |
686 | size_t prefix_len; |
687 | int shared; | |
688 | struct snd_kcontrol *kcontrol; | |
85762e71 | 689 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
690 | char *long_name; |
691 | const char *name; | |
692 | int ret; | |
efb7ac3f MB |
693 | |
694 | if (dapm->codec) | |
695 | prefix = dapm->codec->name_prefix; | |
696 | else | |
697 | prefix = NULL; | |
2b97eabc | 698 | |
3e5ff4df MB |
699 | if (prefix) |
700 | prefix_len = strlen(prefix) + 1; | |
701 | else | |
702 | prefix_len = 0; | |
703 | ||
85762e71 SW |
704 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
705 | &kcontrol); | |
2b97eabc | 706 | |
85762e71 SW |
707 | if (!kcontrol) { |
708 | if (shared) { | |
709 | wname_in_long_name = false; | |
710 | kcname_in_long_name = true; | |
711 | } else { | |
712 | switch (w->id) { | |
713 | case snd_soc_dapm_switch: | |
714 | case snd_soc_dapm_mixer: | |
715 | wname_in_long_name = true; | |
716 | kcname_in_long_name = true; | |
717 | break; | |
718 | case snd_soc_dapm_mixer_named_ctl: | |
719 | wname_in_long_name = false; | |
720 | kcname_in_long_name = true; | |
721 | break; | |
722 | case snd_soc_dapm_mux: | |
723 | case snd_soc_dapm_virt_mux: | |
724 | case snd_soc_dapm_value_mux: | |
725 | wname_in_long_name = true; | |
726 | kcname_in_long_name = false; | |
727 | break; | |
728 | default: | |
85762e71 | 729 | return -EINVAL; |
82cd8764 | 730 | } |
85762e71 SW |
731 | } |
732 | ||
733 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
734 | /* |
735 | * The control will get a prefix from the control | |
736 | * creation process but we're also using the same | |
737 | * prefix for widgets so cut the prefix off the | |
738 | * front of the widget name. | |
ca9c1aae | 739 | */ |
2b581074 | 740 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
741 | w->name + prefix_len, |
742 | w->kcontrol_news[kci].name); | |
e84357f7 | 743 | if (long_name == NULL) |
2b581074 | 744 | return -ENOMEM; |
85762e71 SW |
745 | |
746 | name = long_name; | |
747 | } else if (wname_in_long_name) { | |
748 | long_name = NULL; | |
749 | name = w->name + prefix_len; | |
750 | } else { | |
751 | long_name = NULL; | |
752 | name = w->kcontrol_news[kci].name; | |
753 | } | |
ca9c1aae | 754 | |
e84357f7 | 755 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 756 | prefix); |
656ca9d3 | 757 | kfree(long_name); |
9356e9d5 LPC |
758 | if (!kcontrol) |
759 | return -ENOMEM; | |
760 | kcontrol->private_free = dapm_kcontrol_free; | |
e84357f7 LPC |
761 | |
762 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
763 | if (ret) { | |
764 | snd_ctl_free_one(kcontrol); | |
765 | return ret; | |
766 | } | |
767 | ||
85762e71 SW |
768 | ret = snd_ctl_add(card, kcontrol); |
769 | if (ret < 0) { | |
770 | dev_err(dapm->dev, | |
771 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
772 | w->name, name, ret); | |
85762e71 SW |
773 | return ret; |
774 | } | |
85762e71 | 775 | } |
2b97eabc | 776 | |
2c75bdf3 LPC |
777 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
778 | if (ret) | |
779 | return ret; | |
780 | ||
85762e71 | 781 | w->kcontrols[kci] = kcontrol; |
ca9c1aae | 782 | |
85762e71 SW |
783 | return 0; |
784 | } | |
219b93f5 | 785 | |
85762e71 SW |
786 | /* create new dapm mixer control */ |
787 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
788 | { | |
789 | int i, ret; | |
790 | struct snd_soc_dapm_path *path; | |
791 | ||
792 | /* add kcontrol */ | |
793 | for (i = 0; i < w->num_kcontrols; i++) { | |
794 | /* match name */ | |
795 | list_for_each_entry(path, &w->sources, list_sink) { | |
796 | /* mixer/mux paths name must match control name */ | |
797 | if (path->name != (char *)w->kcontrol_news[i].name) | |
798 | continue; | |
799 | ||
800 | if (w->kcontrols[i]) { | |
5106b92f | 801 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
85762e71 | 802 | continue; |
2b97eabc | 803 | } |
85762e71 | 804 | |
946d92a1 | 805 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); |
85762e71 SW |
806 | if (ret < 0) |
807 | return ret; | |
946d92a1 MB |
808 | |
809 | dapm_kcontrol_add_path(w->kcontrols[i], path); | |
2b97eabc RP |
810 | } |
811 | } | |
85762e71 SW |
812 | |
813 | return 0; | |
2b97eabc RP |
814 | } |
815 | ||
816 | /* create new dapm mux control */ | |
4b80b8c2 | 817 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 818 | { |
4b80b8c2 | 819 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 820 | struct snd_soc_dapm_path *path; |
af46800b | 821 | int ret; |
2b97eabc | 822 | |
af46800b SW |
823 | if (w->num_kcontrols != 1) { |
824 | dev_err(dapm->dev, | |
30a6a1a4 | 825 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 826 | w->name); |
2b97eabc RP |
827 | return -EINVAL; |
828 | } | |
829 | ||
fe581391 | 830 | if (list_empty(&w->sources)) { |
85762e71 SW |
831 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
832 | return -EINVAL; | |
af46800b | 833 | } |
ce6120cc | 834 | |
946d92a1 | 835 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
836 | if (ret < 0) |
837 | return ret; | |
fad59888 | 838 | |
2b97eabc | 839 | list_for_each_entry(path, &w->sources, list_sink) |
5106b92f | 840 | dapm_kcontrol_add_path(w->kcontrols[0], path); |
2b97eabc | 841 | |
af46800b | 842 | return 0; |
2b97eabc RP |
843 | } |
844 | ||
845 | /* create new dapm volume control */ | |
4b80b8c2 | 846 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 847 | { |
a6c65736 | 848 | if (w->num_kcontrols) |
f7d41ae8 | 849 | dev_err(w->dapm->dev, |
30a6a1a4 | 850 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 851 | |
a6c65736 | 852 | return 0; |
2b97eabc RP |
853 | } |
854 | ||
855 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
856 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
857 | struct list_head *sink) | |
2b97eabc RP |
858 | { |
859 | struct snd_soc_dapm_path *p; | |
860 | ||
1059ecfa RT |
861 | list_for_each_entry(p, sink, list_source) { |
862 | if (p->walked) { | |
863 | p->walked = 0; | |
864 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
865 | } | |
866 | } | |
2b97eabc RP |
867 | } |
868 | ||
1059ecfa RT |
869 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
870 | struct list_head *source) | |
2b97eabc RP |
871 | { |
872 | struct snd_soc_dapm_path *p; | |
873 | ||
1059ecfa RT |
874 | list_for_each_entry(p, source, list_sink) { |
875 | if (p->walked) { | |
876 | p->walked = 0; | |
877 | dapm_clear_walk_input(dapm, &p->source->sources); | |
878 | } | |
879 | } | |
2b97eabc RP |
880 | } |
881 | ||
1059ecfa | 882 | |
9949788b MB |
883 | /* We implement power down on suspend by checking the power state of |
884 | * the ALSA card - when we are suspending the ALSA state for the card | |
885 | * is set to D3. | |
886 | */ | |
887 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
888 | { | |
12ea2c78 | 889 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 890 | |
f0fba2ad | 891 | switch (level) { |
9949788b MB |
892 | case SNDRV_CTL_POWER_D3hot: |
893 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 894 | if (widget->ignore_suspend) |
30a6a1a4 | 895 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 896 | widget->name); |
1547aba9 | 897 | return widget->ignore_suspend; |
9949788b MB |
898 | default: |
899 | return 1; | |
900 | } | |
901 | } | |
902 | ||
ec2e3031 LG |
903 | /* add widget to list if it's not already in the list */ |
904 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
905 | struct snd_soc_dapm_widget *w) | |
906 | { | |
907 | struct snd_soc_dapm_widget_list *wlist; | |
908 | int wlistsize, wlistentries, i; | |
909 | ||
910 | if (*list == NULL) | |
911 | return -EINVAL; | |
912 | ||
913 | wlist = *list; | |
914 | ||
915 | /* is this widget already in the list */ | |
916 | for (i = 0; i < wlist->num_widgets; i++) { | |
917 | if (wlist->widgets[i] == w) | |
918 | return 0; | |
919 | } | |
920 | ||
921 | /* allocate some new space */ | |
922 | wlistentries = wlist->num_widgets + 1; | |
923 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
924 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
925 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
926 | if (*list == NULL) { | |
30a6a1a4 | 927 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
928 | w->name); |
929 | return -ENOMEM; | |
930 | } | |
931 | wlist = *list; | |
932 | ||
933 | /* insert the widget */ | |
30a6a1a4 | 934 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
935 | w->name, wlist->num_widgets); |
936 | ||
937 | wlist->widgets[wlist->num_widgets] = w; | |
938 | wlist->num_widgets++; | |
939 | return 1; | |
940 | } | |
941 | ||
2b97eabc RP |
942 | /* |
943 | * Recursively check for a completed path to an active or physically connected | |
944 | * output widget. Returns number of complete paths. | |
945 | */ | |
ec2e3031 LG |
946 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
947 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
948 | { |
949 | struct snd_soc_dapm_path *path; | |
950 | int con = 0; | |
951 | ||
024dc078 MB |
952 | if (widget->outputs >= 0) |
953 | return widget->outputs; | |
954 | ||
de02d078 MB |
955 | DAPM_UPDATE_STAT(widget, path_checks); |
956 | ||
62ea874a MB |
957 | switch (widget->id) { |
958 | case snd_soc_dapm_supply: | |
959 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 960 | case snd_soc_dapm_clock_supply: |
57295073 | 961 | case snd_soc_dapm_kcontrol: |
246d0a17 | 962 | return 0; |
62ea874a MB |
963 | default: |
964 | break; | |
965 | } | |
246d0a17 | 966 | |
010ff262 MB |
967 | switch (widget->id) { |
968 | case snd_soc_dapm_adc: | |
969 | case snd_soc_dapm_aif_out: | |
4616274d | 970 | case snd_soc_dapm_dai_out: |
024dc078 MB |
971 | if (widget->active) { |
972 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
973 | return widget->outputs; | |
974 | } | |
010ff262 MB |
975 | default: |
976 | break; | |
977 | } | |
2b97eabc RP |
978 | |
979 | if (widget->connected) { | |
980 | /* connected pin ? */ | |
024dc078 MB |
981 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
982 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
983 | return widget->outputs; | |
984 | } | |
2b97eabc RP |
985 | |
986 | /* connected jack or spk ? */ | |
024dc078 MB |
987 | if (widget->id == snd_soc_dapm_hp || |
988 | widget->id == snd_soc_dapm_spk || | |
989 | (widget->id == snd_soc_dapm_line && | |
990 | !list_empty(&widget->sources))) { | |
991 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
992 | return widget->outputs; | |
993 | } | |
2b97eabc RP |
994 | } |
995 | ||
996 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
997 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
998 | ||
bf3a9e13 MB |
999 | if (path->weak) |
1000 | continue; | |
1001 | ||
8af294b4 MB |
1002 | if (path->walking) |
1003 | return 1; | |
1004 | ||
2b97eabc RP |
1005 | if (path->walked) |
1006 | continue; | |
1007 | ||
ec2e3031 LG |
1008 | trace_snd_soc_dapm_output_path(widget, path); |
1009 | ||
2b97eabc RP |
1010 | if (path->sink && path->connect) { |
1011 | path->walked = 1; | |
8af294b4 | 1012 | path->walking = 1; |
ec2e3031 LG |
1013 | |
1014 | /* do we need to add this widget to the list ? */ | |
1015 | if (list) { | |
1016 | int err; | |
1017 | err = dapm_list_add_widget(list, path->sink); | |
1018 | if (err < 0) { | |
30a6a1a4 LG |
1019 | dev_err(widget->dapm->dev, |
1020 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1021 | widget->name); |
8af294b4 | 1022 | path->walking = 0; |
ec2e3031 LG |
1023 | return con; |
1024 | } | |
1025 | } | |
1026 | ||
1027 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
1028 | |
1029 | path->walking = 0; | |
2b97eabc RP |
1030 | } |
1031 | } | |
1032 | ||
024dc078 MB |
1033 | widget->outputs = con; |
1034 | ||
2b97eabc RP |
1035 | return con; |
1036 | } | |
1037 | ||
1038 | /* | |
1039 | * Recursively check for a completed path to an active or physically connected | |
1040 | * input widget. Returns number of complete paths. | |
1041 | */ | |
ec2e3031 LG |
1042 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1043 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
1044 | { |
1045 | struct snd_soc_dapm_path *path; | |
1046 | int con = 0; | |
1047 | ||
024dc078 MB |
1048 | if (widget->inputs >= 0) |
1049 | return widget->inputs; | |
1050 | ||
de02d078 MB |
1051 | DAPM_UPDATE_STAT(widget, path_checks); |
1052 | ||
62ea874a MB |
1053 | switch (widget->id) { |
1054 | case snd_soc_dapm_supply: | |
1055 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 1056 | case snd_soc_dapm_clock_supply: |
57295073 | 1057 | case snd_soc_dapm_kcontrol: |
246d0a17 | 1058 | return 0; |
62ea874a MB |
1059 | default: |
1060 | break; | |
1061 | } | |
246d0a17 | 1062 | |
2b97eabc | 1063 | /* active stream ? */ |
010ff262 MB |
1064 | switch (widget->id) { |
1065 | case snd_soc_dapm_dac: | |
1066 | case snd_soc_dapm_aif_in: | |
4616274d | 1067 | case snd_soc_dapm_dai_in: |
024dc078 MB |
1068 | if (widget->active) { |
1069 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1070 | return widget->inputs; | |
1071 | } | |
010ff262 MB |
1072 | default: |
1073 | break; | |
1074 | } | |
2b97eabc RP |
1075 | |
1076 | if (widget->connected) { | |
1077 | /* connected pin ? */ | |
024dc078 MB |
1078 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
1079 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1080 | return widget->inputs; | |
1081 | } | |
2b97eabc RP |
1082 | |
1083 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
1084 | if (widget->id == snd_soc_dapm_vmid) { |
1085 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1086 | return widget->inputs; | |
1087 | } | |
2b97eabc RP |
1088 | |
1089 | /* connected jack ? */ | |
eaeae5d9 | 1090 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
1091 | (widget->id == snd_soc_dapm_line && |
1092 | !list_empty(&widget->sinks))) { | |
1093 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1094 | return widget->inputs; | |
1095 | } | |
1096 | ||
1ab97c8c MB |
1097 | /* signal generator */ |
1098 | if (widget->id == snd_soc_dapm_siggen) { | |
1099 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
1100 | return widget->inputs; | |
1101 | } | |
2b97eabc RP |
1102 | } |
1103 | ||
1104 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
1105 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1106 | ||
bf3a9e13 MB |
1107 | if (path->weak) |
1108 | continue; | |
1109 | ||
8af294b4 MB |
1110 | if (path->walking) |
1111 | return 1; | |
1112 | ||
2b97eabc RP |
1113 | if (path->walked) |
1114 | continue; | |
1115 | ||
ec2e3031 LG |
1116 | trace_snd_soc_dapm_input_path(widget, path); |
1117 | ||
2b97eabc RP |
1118 | if (path->source && path->connect) { |
1119 | path->walked = 1; | |
8af294b4 | 1120 | path->walking = 1; |
ec2e3031 LG |
1121 | |
1122 | /* do we need to add this widget to the list ? */ | |
1123 | if (list) { | |
1124 | int err; | |
90c6ce0d | 1125 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 1126 | if (err < 0) { |
30a6a1a4 LG |
1127 | dev_err(widget->dapm->dev, |
1128 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 1129 | widget->name); |
8af294b4 | 1130 | path->walking = 0; |
ec2e3031 LG |
1131 | return con; |
1132 | } | |
1133 | } | |
1134 | ||
1135 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
1136 | |
1137 | path->walking = 0; | |
2b97eabc RP |
1138 | } |
1139 | } | |
1140 | ||
024dc078 MB |
1141 | widget->inputs = con; |
1142 | ||
2b97eabc RP |
1143 | return con; |
1144 | } | |
1145 | ||
ec2e3031 LG |
1146 | /** |
1147 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1148 | * @dai: the soc DAI. | |
1149 | * @stream: stream direction. | |
1150 | * @list: list of active widgets for this stream. | |
1151 | * | |
1152 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1153 | * the initial stream specified by name. This takes into account | |
1154 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1155 | * | |
1156 | * Returns the number of valid paths or negative error. | |
1157 | */ | |
1158 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1159 | struct snd_soc_dapm_widget_list **list) | |
1160 | { | |
1161 | struct snd_soc_card *card = dai->card; | |
1162 | int paths; | |
1163 | ||
1164 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1165 | dapm_reset(card); | |
1166 | ||
1059ecfa | 1167 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1168 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1169 | dapm_clear_walk_output(&card->dapm, |
1170 | &dai->playback_widget->sinks); | |
1171 | } else { | |
d298caae | 1172 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1173 | dapm_clear_walk_input(&card->dapm, |
1174 | &dai->capture_widget->sources); | |
1175 | } | |
ec2e3031 LG |
1176 | |
1177 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1178 | mutex_unlock(&card->dapm_mutex); |
1179 | ||
1180 | return paths; | |
1181 | } | |
1182 | ||
e2be2ccf JN |
1183 | /* |
1184 | * Handler for generic register modifier widget. | |
1185 | */ | |
1186 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1187 | struct snd_kcontrol *kcontrol, int event) | |
1188 | { | |
1189 | unsigned int val; | |
1190 | ||
1191 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1192 | val = w->on_val; | |
1193 | else | |
1194 | val = w->off_val; | |
1195 | ||
49575fb5 | 1196 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1197 | w->mask << w->shift, val << w->shift); |
1198 | ||
1199 | return 0; | |
1200 | } | |
11589418 | 1201 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1202 | |
62ea874a MB |
1203 | /* |
1204 | * Handler for regulator supply widget. | |
1205 | */ | |
1206 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1207 | struct snd_kcontrol *kcontrol, int event) | |
1208 | { | |
c05b84d1 MB |
1209 | int ret; |
1210 | ||
eb270e98 MB |
1211 | soc_dapm_async_complete(w->dapm); |
1212 | ||
c05b84d1 | 1213 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1214 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1215 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1216 | if (ret != 0) |
1217 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1218 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1219 | w->name, ret); |
1220 | } | |
1221 | ||
a3cc056b | 1222 | return regulator_enable(w->regulator); |
c05b84d1 | 1223 | } else { |
de9ba98b | 1224 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1225 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1226 | if (ret != 0) |
1227 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1228 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1229 | w->name, ret); |
1230 | } | |
1231 | ||
a3cc056b | 1232 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1233 | } |
62ea874a MB |
1234 | } |
1235 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1236 | ||
d7e7eb91 OL |
1237 | /* |
1238 | * Handler for clock supply widget. | |
1239 | */ | |
1240 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1241 | struct snd_kcontrol *kcontrol, int event) | |
1242 | { | |
1243 | if (!w->clk) | |
1244 | return -EIO; | |
1245 | ||
eb270e98 MB |
1246 | soc_dapm_async_complete(w->dapm); |
1247 | ||
ec02995a | 1248 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1249 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1250 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1251 | } else { |
37c1b927 | 1252 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1253 | return 0; |
1254 | } | |
ec02995a | 1255 | #endif |
98b3cf12 | 1256 | return 0; |
d7e7eb91 OL |
1257 | } |
1258 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1259 | ||
d805002b MB |
1260 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1261 | { | |
9b8a83b2 MB |
1262 | if (w->power_checked) |
1263 | return w->new_power; | |
1264 | ||
d805002b | 1265 | if (w->force) |
9b8a83b2 | 1266 | w->new_power = 1; |
d805002b | 1267 | else |
9b8a83b2 MB |
1268 | w->new_power = w->power_check(w); |
1269 | ||
1270 | w->power_checked = true; | |
1271 | ||
1272 | return w->new_power; | |
d805002b MB |
1273 | } |
1274 | ||
cd0f2d47 MB |
1275 | /* Generic check to see if a widget should be powered. |
1276 | */ | |
1277 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1278 | { | |
1279 | int in, out; | |
1280 | ||
de02d078 MB |
1281 | DAPM_UPDATE_STAT(w, power_checks); |
1282 | ||
ec2e3031 | 1283 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1284 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1285 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1286 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1287 | return out != 0 && in != 0; |
1288 | } | |
1289 | ||
6ea31b9f MB |
1290 | /* Check to see if an ADC has power */ |
1291 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1292 | { | |
1293 | int in; | |
1294 | ||
de02d078 MB |
1295 | DAPM_UPDATE_STAT(w, power_checks); |
1296 | ||
6ea31b9f | 1297 | if (w->active) { |
ec2e3031 | 1298 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1299 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1300 | return in != 0; |
1301 | } else { | |
1302 | return dapm_generic_check_power(w); | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* Check to see if a DAC has power */ | |
1307 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1308 | { | |
1309 | int out; | |
1310 | ||
de02d078 MB |
1311 | DAPM_UPDATE_STAT(w, power_checks); |
1312 | ||
6ea31b9f | 1313 | if (w->active) { |
ec2e3031 | 1314 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1315 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1316 | return out != 0; |
1317 | } else { | |
1318 | return dapm_generic_check_power(w); | |
1319 | } | |
1320 | } | |
1321 | ||
246d0a17 MB |
1322 | /* Check to see if a power supply is needed */ |
1323 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1324 | { | |
1325 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1326 | |
de02d078 MB |
1327 | DAPM_UPDATE_STAT(w, power_checks); |
1328 | ||
246d0a17 MB |
1329 | /* Check if one of our outputs is connected */ |
1330 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1331 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1332 | ||
bf3a9e13 MB |
1333 | if (path->weak) |
1334 | continue; | |
1335 | ||
215edda3 MB |
1336 | if (path->connected && |
1337 | !path->connected(path->source, path->sink)) | |
1338 | continue; | |
1339 | ||
3017358a MB |
1340 | if (!path->sink) |
1341 | continue; | |
1342 | ||
f68d7e16 MB |
1343 | if (dapm_widget_power_check(path->sink)) |
1344 | return 1; | |
246d0a17 MB |
1345 | } |
1346 | ||
f68d7e16 | 1347 | return 0; |
246d0a17 MB |
1348 | } |
1349 | ||
35c64bca MB |
1350 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1351 | { | |
1352 | return 1; | |
1353 | } | |
1354 | ||
38357ab2 MB |
1355 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1356 | struct snd_soc_dapm_widget *b, | |
828a842f | 1357 | bool power_up) |
42aa3418 | 1358 | { |
828a842f MB |
1359 | int *sort; |
1360 | ||
1361 | if (power_up) | |
1362 | sort = dapm_up_seq; | |
1363 | else | |
1364 | sort = dapm_down_seq; | |
1365 | ||
38357ab2 MB |
1366 | if (sort[a->id] != sort[b->id]) |
1367 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1368 | if (a->subseq != b->subseq) { |
1369 | if (power_up) | |
1370 | return a->subseq - b->subseq; | |
1371 | else | |
1372 | return b->subseq - a->subseq; | |
1373 | } | |
b22ead2a MB |
1374 | if (a->reg != b->reg) |
1375 | return a->reg - b->reg; | |
84dab567 MB |
1376 | if (a->dapm != b->dapm) |
1377 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1378 | |
38357ab2 MB |
1379 | return 0; |
1380 | } | |
42aa3418 | 1381 | |
38357ab2 MB |
1382 | /* Insert a widget in order into a DAPM power sequence. */ |
1383 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1384 | struct list_head *list, | |
828a842f | 1385 | bool power_up) |
38357ab2 MB |
1386 | { |
1387 | struct snd_soc_dapm_widget *w; | |
1388 | ||
1389 | list_for_each_entry(w, list, power_list) | |
828a842f | 1390 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1391 | list_add_tail(&new_widget->power_list, &w->power_list); |
1392 | return; | |
1393 | } | |
1394 | ||
1395 | list_add_tail(&new_widget->power_list, list); | |
1396 | } | |
1397 | ||
95dd5cd6 | 1398 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1399 | struct snd_soc_dapm_widget *w, int event) |
1400 | { | |
68f89ad8 MB |
1401 | const char *ev_name; |
1402 | int power, ret; | |
1403 | ||
1404 | switch (event) { | |
1405 | case SND_SOC_DAPM_PRE_PMU: | |
1406 | ev_name = "PRE_PMU"; | |
1407 | power = 1; | |
1408 | break; | |
1409 | case SND_SOC_DAPM_POST_PMU: | |
1410 | ev_name = "POST_PMU"; | |
1411 | power = 1; | |
1412 | break; | |
1413 | case SND_SOC_DAPM_PRE_PMD: | |
1414 | ev_name = "PRE_PMD"; | |
1415 | power = 0; | |
1416 | break; | |
1417 | case SND_SOC_DAPM_POST_PMD: | |
1418 | ev_name = "POST_PMD"; | |
1419 | power = 0; | |
1420 | break; | |
80114129 MB |
1421 | case SND_SOC_DAPM_WILL_PMU: |
1422 | ev_name = "WILL_PMU"; | |
1423 | power = 1; | |
1424 | break; | |
1425 | case SND_SOC_DAPM_WILL_PMD: | |
1426 | ev_name = "WILL_PMD"; | |
1427 | power = 0; | |
1428 | break; | |
68f89ad8 | 1429 | default: |
a6ed0608 | 1430 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1431 | return; |
1432 | } | |
1433 | ||
39eb5fd1 | 1434 | if (w->new_power != power) |
68f89ad8 MB |
1435 | return; |
1436 | ||
1437 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1438 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1439 | w->name, ev_name); |
eb270e98 | 1440 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1441 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1442 | ret = w->event(w, NULL, event); |
84e90930 | 1443 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1444 | if (ret < 0) |
95dd5cd6 | 1445 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1446 | ev_name, w->name, ret); |
1447 | } | |
1448 | } | |
1449 | ||
b22ead2a | 1450 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1451 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1452 | struct list_head *pending) |
163cac06 | 1453 | { |
68f89ad8 | 1454 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1455 | int reg; |
b22ead2a MB |
1456 | unsigned int value = 0; |
1457 | unsigned int mask = 0; | |
b22ead2a MB |
1458 | |
1459 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1460 | power_list)->reg; | |
1461 | ||
1462 | list_for_each_entry(w, pending, power_list) { | |
bf4edea8 | 1463 | WARN_ON(reg != w->reg); |
39eb5fd1 | 1464 | w->power = w->new_power; |
b22ead2a | 1465 | |
de9ba98b LPC |
1466 | mask |= w->mask << w->shift; |
1467 | if (w->power) | |
1468 | value |= w->on_val << w->shift; | |
b22ead2a | 1469 | else |
de9ba98b | 1470 | value |= w->off_val << w->shift; |
b22ead2a | 1471 | |
95dd5cd6 | 1472 | pop_dbg(w->dapm->dev, card->pop_time, |
b22ead2a MB |
1473 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1474 | w->name, reg, value, mask); | |
81628103 | 1475 | |
68f89ad8 | 1476 | /* Check for events */ |
95dd5cd6 LPC |
1477 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1478 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1479 | } |
1480 | ||
1481 | if (reg >= 0) { | |
29376bc7 MB |
1482 | /* Any widget will do, they should all be updating the |
1483 | * same register. | |
1484 | */ | |
1485 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1486 | power_list); | |
1487 | ||
95dd5cd6 | 1488 | pop_dbg(w->dapm->dev, card->pop_time, |
81628103 | 1489 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1490 | value, mask, reg, card->pop_time); |
1491 | pop_wait(card->pop_time); | |
49575fb5 | 1492 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1493 | } |
1494 | ||
81628103 | 1495 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1496 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1497 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1498 | } |
b22ead2a | 1499 | } |
42aa3418 | 1500 | |
b22ead2a MB |
1501 | /* Apply a DAPM power sequence. |
1502 | * | |
1503 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1504 | * order to minimise the number of writes to the device required | |
1505 | * multiple widgets will be updated in a single write where possible. | |
1506 | * Currently anything that requires more than a single write is not | |
1507 | * handled. | |
1508 | */ | |
95dd5cd6 LPC |
1509 | static void dapm_seq_run(struct snd_soc_card *card, |
1510 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1511 | { |
1512 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1513 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1514 | LIST_HEAD(pending); |
1515 | int cur_sort = -1; | |
20e4859d | 1516 | int cur_subseq = -1; |
b22ead2a | 1517 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1518 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1519 | int ret, i; |
828a842f MB |
1520 | int *sort; |
1521 | ||
1522 | if (power_up) | |
1523 | sort = dapm_up_seq; | |
1524 | else | |
1525 | sort = dapm_down_seq; | |
163cac06 | 1526 | |
b22ead2a MB |
1527 | list_for_each_entry_safe(w, n, list, power_list) { |
1528 | ret = 0; | |
1529 | ||
1530 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1531 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1532 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1533 | if (!list_empty(&pending)) |
95dd5cd6 | 1534 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1535 | |
474b62d6 MB |
1536 | if (cur_dapm && cur_dapm->seq_notifier) { |
1537 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1538 | if (sort[i] == cur_sort) | |
1539 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1540 | i, |
1541 | cur_subseq); | |
474b62d6 MB |
1542 | } |
1543 | ||
eb270e98 MB |
1544 | if (cur_dapm && w->dapm != cur_dapm) |
1545 | soc_dapm_async_complete(cur_dapm); | |
1546 | ||
b22ead2a MB |
1547 | INIT_LIST_HEAD(&pending); |
1548 | cur_sort = -1; | |
b0b3e6f8 | 1549 | cur_subseq = INT_MIN; |
b22ead2a | 1550 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1551 | cur_dapm = NULL; |
b22ead2a MB |
1552 | } |
1553 | ||
163cac06 MB |
1554 | switch (w->id) { |
1555 | case snd_soc_dapm_pre: | |
1556 | if (!w->event) | |
b22ead2a MB |
1557 | list_for_each_entry_safe_continue(w, n, list, |
1558 | power_list); | |
163cac06 | 1559 | |
b22ead2a | 1560 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1561 | ret = w->event(w, |
1562 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1563 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1564 | ret = w->event(w, |
1565 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1566 | break; |
1567 | ||
1568 | case snd_soc_dapm_post: | |
1569 | if (!w->event) | |
b22ead2a MB |
1570 | list_for_each_entry_safe_continue(w, n, list, |
1571 | power_list); | |
163cac06 | 1572 | |
b22ead2a | 1573 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1574 | ret = w->event(w, |
1575 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1576 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1577 | ret = w->event(w, |
1578 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1579 | break; |
1580 | ||
b22ead2a | 1581 | default: |
81628103 MB |
1582 | /* Queue it up for application */ |
1583 | cur_sort = sort[w->id]; | |
20e4859d | 1584 | cur_subseq = w->subseq; |
81628103 | 1585 | cur_reg = w->reg; |
7be31be8 | 1586 | cur_dapm = w->dapm; |
81628103 MB |
1587 | list_move(&w->power_list, &pending); |
1588 | break; | |
163cac06 | 1589 | } |
b22ead2a MB |
1590 | |
1591 | if (ret < 0) | |
f7d41ae8 | 1592 | dev_err(w->dapm->dev, |
30a6a1a4 | 1593 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1594 | } |
b22ead2a MB |
1595 | |
1596 | if (!list_empty(&pending)) | |
95dd5cd6 | 1597 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1598 | |
1599 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1600 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1601 | if (sort[i] == cur_sort) | |
1602 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1603 | i, cur_subseq); |
474b62d6 | 1604 | } |
eb270e98 MB |
1605 | |
1606 | list_for_each_entry(d, &card->dapm_list, list) { | |
1607 | soc_dapm_async_complete(d); | |
1608 | } | |
42aa3418 MB |
1609 | } |
1610 | ||
95dd5cd6 | 1611 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1612 | { |
95dd5cd6 | 1613 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1614 | struct snd_soc_dapm_widget_list *wlist; |
1615 | struct snd_soc_dapm_widget *w = NULL; | |
1616 | unsigned int wi; | |
97404f2e MB |
1617 | int ret; |
1618 | ||
57295073 | 1619 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1620 | return; |
1621 | ||
e84357f7 | 1622 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1623 | |
ce6cfaf1 LPC |
1624 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1625 | w = wlist->widgets[wi]; | |
1626 | ||
1627 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1628 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1629 | if (ret != 0) | |
95dd5cd6 | 1630 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1631 | w->name, ret); |
1632 | } | |
97404f2e MB |
1633 | } |
1634 | ||
ce6cfaf1 LPC |
1635 | if (!w) |
1636 | return; | |
1637 | ||
49575fb5 | 1638 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1639 | update->val); |
1640 | if (ret < 0) | |
95dd5cd6 | 1641 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1642 | w->name, ret); |
97404f2e | 1643 | |
ce6cfaf1 LPC |
1644 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1645 | w = wlist->widgets[wi]; | |
1646 | ||
1647 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1648 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1649 | if (ret != 0) | |
95dd5cd6 | 1650 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1651 | w->name, ret); |
1652 | } | |
97404f2e MB |
1653 | } |
1654 | } | |
1655 | ||
9d0624a7 MB |
1656 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1657 | * they're changing state. | |
1658 | */ | |
1659 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1660 | { | |
1661 | struct snd_soc_dapm_context *d = data; | |
1662 | int ret; | |
1663 | ||
56fba41f MB |
1664 | /* If we're off and we're not supposed to be go into STANDBY */ |
1665 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1666 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1667 | if (d->dev) |
1668 | pm_runtime_get_sync(d->dev); | |
1669 | ||
9d0624a7 MB |
1670 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1671 | if (ret != 0) | |
1672 | dev_err(d->dev, | |
30a6a1a4 | 1673 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1674 | } |
1675 | ||
56fba41f MB |
1676 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1677 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1678 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1679 | if (ret != 0) | |
1680 | dev_err(d->dev, | |
30a6a1a4 | 1681 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1682 | } |
1683 | } | |
1684 | ||
1685 | /* Async callback run prior to DAPM sequences - brings to their final | |
1686 | * state. | |
1687 | */ | |
1688 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1689 | { | |
1690 | struct snd_soc_dapm_context *d = data; | |
1691 | int ret; | |
1692 | ||
1693 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1694 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1695 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1696 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1697 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1698 | if (ret != 0) | |
30a6a1a4 | 1699 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1700 | ret); |
1701 | } | |
97404f2e | 1702 | |
9d0624a7 | 1703 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1704 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1705 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1706 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1707 | if (ret != 0) | |
30a6a1a4 LG |
1708 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1709 | ret); | |
f1aac484 MB |
1710 | |
1711 | if (d->dev) | |
fb644e9c | 1712 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1713 | } |
1714 | ||
1715 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1716 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1717 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1718 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1719 | if (ret != 0) | |
30a6a1a4 | 1720 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1721 | ret); |
1722 | } | |
1723 | } | |
97404f2e | 1724 | |
fe4fda5d MB |
1725 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1726 | bool power, bool connect) | |
1727 | { | |
1728 | /* If a connection is being made or broken then that update | |
1729 | * will have marked the peer dirty, otherwise the widgets are | |
1730 | * not connected and this update has no impact. */ | |
1731 | if (!connect) | |
1732 | return; | |
1733 | ||
1734 | /* If the peer is already in the state we're moving to then we | |
1735 | * won't have an impact on it. */ | |
1736 | if (power != peer->power) | |
75c1f891 | 1737 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1738 | } |
1739 | ||
05623c43 MB |
1740 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1741 | struct list_head *up_list, | |
1742 | struct list_head *down_list) | |
1743 | { | |
db432b41 MB |
1744 | struct snd_soc_dapm_path *path; |
1745 | ||
05623c43 MB |
1746 | if (w->power == power) |
1747 | return; | |
1748 | ||
1749 | trace_snd_soc_dapm_widget_power(w, power); | |
1750 | ||
db432b41 | 1751 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1752 | * also. |
db432b41 MB |
1753 | */ |
1754 | list_for_each_entry(path, &w->sources, list_sink) { | |
1755 | if (path->source) { | |
fe4fda5d MB |
1756 | dapm_widget_set_peer_power(path->source, power, |
1757 | path->connect); | |
db432b41 MB |
1758 | } |
1759 | } | |
f3bf3e45 MB |
1760 | switch (w->id) { |
1761 | case snd_soc_dapm_supply: | |
62ea874a | 1762 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1763 | case snd_soc_dapm_clock_supply: |
57295073 | 1764 | case snd_soc_dapm_kcontrol: |
f3bf3e45 MB |
1765 | /* Supplies can't affect their outputs, only their inputs */ |
1766 | break; | |
1767 | default: | |
1768 | list_for_each_entry(path, &w->sinks, list_source) { | |
1769 | if (path->sink) { | |
1770 | dapm_widget_set_peer_power(path->sink, power, | |
1771 | path->connect); | |
1772 | } | |
db432b41 | 1773 | } |
f3bf3e45 | 1774 | break; |
db432b41 MB |
1775 | } |
1776 | ||
05623c43 MB |
1777 | if (power) |
1778 | dapm_seq_insert(w, up_list, true); | |
1779 | else | |
1780 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1781 | } |
1782 | ||
7c81beb0 MB |
1783 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1784 | struct list_head *up_list, | |
1785 | struct list_head *down_list) | |
1786 | { | |
7c81beb0 MB |
1787 | int power; |
1788 | ||
1789 | switch (w->id) { | |
1790 | case snd_soc_dapm_pre: | |
1791 | dapm_seq_insert(w, down_list, false); | |
1792 | break; | |
1793 | case snd_soc_dapm_post: | |
1794 | dapm_seq_insert(w, up_list, true); | |
1795 | break; | |
1796 | ||
1797 | default: | |
d805002b | 1798 | power = dapm_widget_power_check(w); |
7c81beb0 | 1799 | |
05623c43 | 1800 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1801 | break; |
1802 | } | |
1803 | } | |
1804 | ||
2b97eabc RP |
1805 | /* |
1806 | * Scan each dapm widget for complete audio path. | |
1807 | * A complete path is a route that has valid endpoints i.e.:- | |
1808 | * | |
1809 | * o DAC to output pin. | |
1810 | * o Input Pin to ADC. | |
1811 | * o Input pin to Output pin (bypass, sidetone) | |
1812 | * o DAC to ADC (loopback). | |
1813 | */ | |
95dd5cd6 | 1814 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1815 | { |
1816 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1817 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1818 | LIST_HEAD(up_list); |
1819 | LIST_HEAD(down_list); | |
2955b47d | 1820 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1821 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1822 | |
84e90930 MB |
1823 | trace_snd_soc_dapm_start(card); |
1824 | ||
56fba41f | 1825 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1826 | if (d->idle_bias_off) |
1827 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1828 | else | |
1829 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1830 | } |
7be31be8 | 1831 | |
6c120e19 | 1832 | dapm_reset(card); |
9b8a83b2 | 1833 | |
6d3ddc81 | 1834 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1835 | * lists indicating if they should be powered up or down. We |
1836 | * only check widgets that have been flagged as dirty but note | |
1837 | * that new widgets may be added to the dirty list while we | |
1838 | * iterate. | |
6d3ddc81 | 1839 | */ |
db432b41 | 1840 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1841 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1842 | } |
1843 | ||
f9de6d74 | 1844 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1845 | switch (w->id) { |
1846 | case snd_soc_dapm_pre: | |
1847 | case snd_soc_dapm_post: | |
1848 | /* These widgets always need to be powered */ | |
1849 | break; | |
1850 | default: | |
1851 | list_del_init(&w->dirty); | |
1852 | break; | |
1853 | } | |
db432b41 | 1854 | |
39eb5fd1 | 1855 | if (w->new_power) { |
f9de6d74 MB |
1856 | d = w->dapm; |
1857 | ||
1858 | /* Supplies and micbiases only bring the | |
1859 | * context up to STANDBY as unless something | |
1860 | * else is active and passing audio they | |
afe62367 MB |
1861 | * generally don't require full power. Signal |
1862 | * generators are virtual pins and have no | |
1863 | * power impact themselves. | |
f9de6d74 MB |
1864 | */ |
1865 | switch (w->id) { | |
afe62367 | 1866 | case snd_soc_dapm_siggen: |
da83fea6 | 1867 | case snd_soc_dapm_vmid: |
afe62367 | 1868 | break; |
f9de6d74 | 1869 | case snd_soc_dapm_supply: |
62ea874a | 1870 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1871 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1872 | case snd_soc_dapm_micbias: |
1873 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1874 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1875 | break; | |
1876 | default: | |
1877 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1878 | break; | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | } | |
1883 | ||
85a843c5 MB |
1884 | /* Force all contexts in the card to the same bias state if |
1885 | * they're not ground referenced. | |
1886 | */ | |
56fba41f | 1887 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1888 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1889 | if (d->target_bias_level > bias) |
1890 | bias = d->target_bias_level; | |
52ba67bf | 1891 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1892 | if (!d->idle_bias_off) |
1893 | d->target_bias_level = bias; | |
52ba67bf | 1894 | |
de02d078 | 1895 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1896 | |
9d0624a7 | 1897 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1898 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1899 | async_schedule_domain(dapm_pre_sequence_async, d, |
1900 | &async_domain); | |
1901 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1902 | |
cf1f7c6e | 1903 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1904 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1905 | } |
1906 | ||
cf1f7c6e | 1907 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1908 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1909 | } |
1910 | ||
6d3ddc81 | 1911 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1912 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1913 | |
95dd5cd6 | 1914 | dapm_widget_update(card); |
97404f2e | 1915 | |
6d3ddc81 | 1916 | /* Now power up. */ |
95dd5cd6 | 1917 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1918 | |
9d0624a7 | 1919 | /* Run all the bias changes in parallel */ |
95dd5cd6 | 1920 | list_for_each_entry(d, &card->dapm_list, list) |
9d0624a7 MB |
1921 | async_schedule_domain(dapm_post_sequence_async, d, |
1922 | &async_domain); | |
1923 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1924 | |
8078d87f LG |
1925 | /* do we need to notify any clients that DAPM event is complete */ |
1926 | list_for_each_entry(d, &card->dapm_list, list) { | |
1927 | if (d->stream_event) | |
1928 | d->stream_event(d, event); | |
1929 | } | |
1930 | ||
95dd5cd6 | 1931 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1932 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1933 | pop_wait(card->pop_time); |
cb507e7e | 1934 | |
84e90930 MB |
1935 | trace_snd_soc_dapm_done(card); |
1936 | ||
42aa3418 | 1937 | return 0; |
2b97eabc RP |
1938 | } |
1939 | ||
79fb9387 | 1940 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1941 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1942 | char __user *user_buf, | |
1943 | size_t count, loff_t *ppos) | |
1944 | { | |
1945 | struct snd_soc_dapm_widget *w = file->private_data; | |
1946 | char *buf; | |
1947 | int in, out; | |
1948 | ssize_t ret; | |
1949 | struct snd_soc_dapm_path *p = NULL; | |
1950 | ||
1951 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1952 | if (!buf) | |
1953 | return -ENOMEM; | |
1954 | ||
ec2e3031 | 1955 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1956 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1957 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1958 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1959 | |
f13ebada MB |
1960 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1961 | w->name, w->power ? "On" : "Off", | |
1962 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1963 | |
d033c36a MB |
1964 | if (w->reg >= 0) |
1965 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1966 | " - R%d(0x%x) mask 0x%x", |
1967 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1968 | |
1969 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1970 | ||
3eef08ba MB |
1971 | if (w->sname) |
1972 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1973 | w->sname, | |
1974 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1975 | |
1976 | list_for_each_entry(p, &w->sources, list_sink) { | |
ff18620c | 1977 | if (p->connected && !p->connected(w, p->source)) |
215edda3 MB |
1978 | continue; |
1979 | ||
79fb9387 MB |
1980 | if (p->connect) |
1981 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1982 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1983 | p->name ? p->name : "static", |
1984 | p->source->name); | |
1985 | } | |
1986 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1987 | if (p->connected && !p->connected(w, p->sink)) |
1988 | continue; | |
1989 | ||
79fb9387 MB |
1990 | if (p->connect) |
1991 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1992 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1993 | p->name ? p->name : "static", |
1994 | p->sink->name); | |
1995 | } | |
1996 | ||
1997 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1998 | ||
1999 | kfree(buf); | |
2000 | return ret; | |
2001 | } | |
2002 | ||
2003 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2004 | .open = simple_open, |
79fb9387 | 2005 | .read = dapm_widget_power_read_file, |
6038f373 | 2006 | .llseek = default_llseek, |
79fb9387 MB |
2007 | }; |
2008 | ||
ef49e4fa MB |
2009 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2010 | size_t count, loff_t *ppos) | |
2011 | { | |
2012 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2013 | char *level; | |
2014 | ||
2015 | switch (dapm->bias_level) { | |
2016 | case SND_SOC_BIAS_ON: | |
2017 | level = "On\n"; | |
2018 | break; | |
2019 | case SND_SOC_BIAS_PREPARE: | |
2020 | level = "Prepare\n"; | |
2021 | break; | |
2022 | case SND_SOC_BIAS_STANDBY: | |
2023 | level = "Standby\n"; | |
2024 | break; | |
2025 | case SND_SOC_BIAS_OFF: | |
2026 | level = "Off\n"; | |
2027 | break; | |
2028 | default: | |
a6ed0608 | 2029 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2030 | level = "Unknown\n"; |
2031 | break; | |
2032 | } | |
2033 | ||
2034 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2035 | strlen(level)); | |
2036 | } | |
2037 | ||
2038 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2039 | .open = simple_open, |
ef49e4fa MB |
2040 | .read = dapm_bias_read_file, |
2041 | .llseek = default_llseek, | |
2042 | }; | |
2043 | ||
8eecaf62 LPC |
2044 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2045 | struct dentry *parent) | |
79fb9387 | 2046 | { |
79fb9387 MB |
2047 | struct dentry *d; |
2048 | ||
8eecaf62 LPC |
2049 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2050 | ||
2051 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2052 | dev_warn(dapm->dev, |
30a6a1a4 | 2053 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2054 | return; |
8eecaf62 | 2055 | } |
79fb9387 | 2056 | |
ef49e4fa MB |
2057 | d = debugfs_create_file("bias_level", 0444, |
2058 | dapm->debugfs_dapm, dapm, | |
2059 | &dapm_bias_fops); | |
2060 | if (!d) | |
2061 | dev_warn(dapm->dev, | |
2062 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2063 | } |
ef49e4fa | 2064 | |
d5d1e0be LPC |
2065 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2066 | { | |
2067 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2068 | struct dentry *d; | |
79fb9387 | 2069 | |
d5d1e0be LPC |
2070 | if (!dapm->debugfs_dapm || !w->name) |
2071 | return; | |
2072 | ||
2073 | d = debugfs_create_file(w->name, 0444, | |
2074 | dapm->debugfs_dapm, w, | |
2075 | &dapm_widget_power_fops); | |
2076 | if (!d) | |
2077 | dev_warn(w->dapm->dev, | |
2078 | "ASoC: Failed to create %s debugfs file\n", | |
2079 | w->name); | |
79fb9387 | 2080 | } |
d5d1e0be | 2081 | |
6c45e126 LPC |
2082 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2083 | { | |
2084 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2085 | } | |
2086 | ||
79fb9387 | 2087 | #else |
8eecaf62 LPC |
2088 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2089 | struct dentry *parent) | |
79fb9387 MB |
2090 | { |
2091 | } | |
d5d1e0be LPC |
2092 | |
2093 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2094 | { | |
2095 | } | |
2096 | ||
6c45e126 LPC |
2097 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2098 | { | |
2099 | } | |
2100 | ||
79fb9387 MB |
2101 | #endif |
2102 | ||
2b97eabc | 2103 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2104 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2105 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2106 | { |
2107 | struct snd_soc_dapm_path *path; | |
2108 | int found = 0; | |
2109 | ||
2b97eabc | 2110 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2111 | dapm_kcontrol_for_each_path(path, kcontrol) { |
cb01e2b9 | 2112 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
2113 | continue; |
2114 | ||
2115 | found = 1; | |
2116 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 2117 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 2118 | path->connect = 1; /* new connection */ |
75c1f891 | 2119 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
2120 | } else { |
2121 | if (path->connect) | |
75c1f891 MB |
2122 | dapm_mark_dirty(path->source, |
2123 | "mux disconnection"); | |
2b97eabc | 2124 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 2125 | } |
ce6cfaf1 | 2126 | dapm_mark_dirty(path->sink, "mux change"); |
2b97eabc RP |
2127 | } |
2128 | ||
ce6cfaf1 | 2129 | if (found) |
95dd5cd6 | 2130 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2131 | |
618dae11 | 2132 | return found; |
2b97eabc | 2133 | } |
4edbb345 | 2134 | |
ce6cfaf1 | 2135 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2136 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2137 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2138 | { |
ce6cfaf1 | 2139 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2140 | int ret; |
2141 | ||
3cd04343 | 2142 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2143 | card->update = update; |
95dd5cd6 | 2144 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2145 | card->update = NULL; |
4edbb345 | 2146 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2147 | if (ret > 0) |
c3f48ae6 | 2148 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2149 | return ret; |
2150 | } | |
40f02cd9 | 2151 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2152 | |
1b075e3f | 2153 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2154 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2155 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2156 | { |
2157 | struct snd_soc_dapm_path *path; | |
2158 | int found = 0; | |
2159 | ||
2b97eabc | 2160 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2161 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2162 | found = 1; |
283375ce | 2163 | path->connect = connect; |
75c1f891 | 2164 | dapm_mark_dirty(path->source, "mixer connection"); |
ce6cfaf1 | 2165 | dapm_mark_dirty(path->sink, "mixer update"); |
2b97eabc RP |
2166 | } |
2167 | ||
ce6cfaf1 | 2168 | if (found) |
95dd5cd6 | 2169 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2170 | |
618dae11 | 2171 | return found; |
2b97eabc | 2172 | } |
4edbb345 | 2173 | |
ce6cfaf1 | 2174 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2175 | struct snd_kcontrol *kcontrol, int connect, |
2176 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2177 | { |
ce6cfaf1 | 2178 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2179 | int ret; |
2180 | ||
3cd04343 | 2181 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2182 | card->update = update; |
95dd5cd6 | 2183 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2184 | card->update = NULL; |
4edbb345 | 2185 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2186 | if (ret > 0) |
c3f48ae6 | 2187 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2188 | return ret; |
2189 | } | |
40f02cd9 | 2190 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2191 | |
2192 | /* show dapm widget status in sys fs */ | |
2193 | static ssize_t dapm_widget_show(struct device *dev, | |
2194 | struct device_attribute *attr, char *buf) | |
2195 | { | |
36ae1a96 | 2196 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2197 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2198 | struct snd_soc_dapm_widget *w; |
2199 | int count = 0; | |
2200 | char *state = "not set"; | |
2201 | ||
97c866de JN |
2202 | list_for_each_entry(w, &codec->card->widgets, list) { |
2203 | if (w->dapm != &codec->dapm) | |
2204 | continue; | |
2b97eabc RP |
2205 | |
2206 | /* only display widgets that burnm power */ | |
2207 | switch (w->id) { | |
2208 | case snd_soc_dapm_hp: | |
2209 | case snd_soc_dapm_mic: | |
2210 | case snd_soc_dapm_spk: | |
2211 | case snd_soc_dapm_line: | |
2212 | case snd_soc_dapm_micbias: | |
2213 | case snd_soc_dapm_dac: | |
2214 | case snd_soc_dapm_adc: | |
2215 | case snd_soc_dapm_pga: | |
d88429a6 | 2216 | case snd_soc_dapm_out_drv: |
2b97eabc | 2217 | case snd_soc_dapm_mixer: |
ca9c1aae | 2218 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2219 | case snd_soc_dapm_supply: |
62ea874a | 2220 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2221 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2222 | if (w->name) |
2223 | count += sprintf(buf + count, "%s: %s\n", | |
2224 | w->name, w->power ? "On":"Off"); | |
2225 | break; | |
2226 | default: | |
2227 | break; | |
2228 | } | |
2229 | } | |
2230 | ||
ce6120cc | 2231 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2232 | case SND_SOC_BIAS_ON: |
2233 | state = "On"; | |
2b97eabc | 2234 | break; |
0be9898a MB |
2235 | case SND_SOC_BIAS_PREPARE: |
2236 | state = "Prepare"; | |
2b97eabc | 2237 | break; |
0be9898a MB |
2238 | case SND_SOC_BIAS_STANDBY: |
2239 | state = "Standby"; | |
2b97eabc | 2240 | break; |
0be9898a MB |
2241 | case SND_SOC_BIAS_OFF: |
2242 | state = "Off"; | |
2b97eabc RP |
2243 | break; |
2244 | } | |
2245 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2246 | ||
2247 | return count; | |
2248 | } | |
2249 | ||
2250 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2251 | ||
2252 | int snd_soc_dapm_sys_add(struct device *dev) | |
2253 | { | |
12ef193d | 2254 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2255 | } |
2256 | ||
2257 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2258 | { | |
aef90843 | 2259 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2260 | } |
2261 | ||
8872293f LPC |
2262 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2263 | { | |
2264 | list_del(&path->list_sink); | |
2265 | list_del(&path->list_source); | |
5106b92f | 2266 | list_del(&path->list_kcontrol); |
8872293f | 2267 | list_del(&path->list); |
8872293f LPC |
2268 | kfree(path); |
2269 | } | |
2270 | ||
2b97eabc | 2271 | /* free all dapm widgets and resources */ |
ce6120cc | 2272 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2273 | { |
2274 | struct snd_soc_dapm_widget *w, *next_w; | |
2275 | struct snd_soc_dapm_path *p, *next_p; | |
2276 | ||
97c866de JN |
2277 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2278 | if (w->dapm != dapm) | |
2279 | continue; | |
2b97eabc | 2280 | list_del(&w->list); |
8ddab3f5 JN |
2281 | /* |
2282 | * remove source and sink paths associated to this widget. | |
2283 | * While removing the path, remove reference to it from both | |
2284 | * source and sink widgets so that path is removed only once. | |
2285 | */ | |
8872293f LPC |
2286 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2287 | dapm_free_path(p); | |
2288 | ||
2289 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2290 | dapm_free_path(p); | |
2291 | ||
fad59888 | 2292 | kfree(w->kcontrols); |
ead9b919 | 2293 | kfree(w->name); |
2b97eabc RP |
2294 | kfree(w); |
2295 | } | |
2b97eabc RP |
2296 | } |
2297 | ||
91a5fca4 LPC |
2298 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2299 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2300 | bool search_other_contexts) | |
a5302181 LG |
2301 | { |
2302 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2303 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2304 | |
97c866de | 2305 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2306 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2307 | if (w->dapm == dapm) |
2308 | return w; | |
2309 | else | |
2310 | fallback = w; | |
a5302181 LG |
2311 | } |
2312 | } | |
2313 | ||
91a5fca4 LPC |
2314 | if (search_other_contexts) |
2315 | return fallback; | |
2316 | ||
2317 | return NULL; | |
2318 | } | |
2319 | ||
2320 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2321 | const char *pin, int status) | |
2322 | { | |
2323 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2324 | ||
2325 | if (!w) { | |
30a6a1a4 | 2326 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2327 | return -EINVAL; |
0d86733c MB |
2328 | } |
2329 | ||
1a8b2d9d MB |
2330 | if (w->connected != status) |
2331 | dapm_mark_dirty(w, "pin configuration"); | |
2332 | ||
91a5fca4 LPC |
2333 | w->connected = status; |
2334 | if (status == 0) | |
2335 | w->force = 0; | |
2336 | ||
2337 | return 0; | |
a5302181 LG |
2338 | } |
2339 | ||
2b97eabc | 2340 | /** |
a5302181 | 2341 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2342 | * @dapm: DAPM context |
2b97eabc RP |
2343 | * |
2344 | * Walks all dapm audio paths and powers widgets according to their | |
2345 | * stream or path usage. | |
2346 | * | |
2347 | * Returns 0 for success. | |
2348 | */ | |
ce6120cc | 2349 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2350 | { |
a73fb2df LG |
2351 | int ret; |
2352 | ||
4f4c0072 MB |
2353 | /* |
2354 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2355 | * silly DAPM runs during card startup. | |
2356 | */ | |
2357 | if (!dapm->card || !dapm->card->instantiated) | |
2358 | return 0; | |
2359 | ||
3cd04343 | 2360 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
95dd5cd6 | 2361 | ret = dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df LG |
2362 | mutex_unlock(&dapm->card->dapm_mutex); |
2363 | return ret; | |
2b97eabc | 2364 | } |
a5302181 | 2365 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2366 | |
2553628e LPC |
2367 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2368 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2369 | const char *control, | |
2370 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2371 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc RP |
2372 | { |
2373 | struct snd_soc_dapm_path *path; | |
2553628e | 2374 | int ret; |
2b97eabc RP |
2375 | |
2376 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2377 | if (!path) | |
2378 | return -ENOMEM; | |
2379 | ||
2380 | path->source = wsource; | |
2381 | path->sink = wsink; | |
2553628e | 2382 | path->connected = connected; |
2b97eabc | 2383 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2384 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc RP |
2385 | INIT_LIST_HEAD(&path->list_source); |
2386 | INIT_LIST_HEAD(&path->list_sink); | |
2387 | ||
2388 | /* check for external widgets */ | |
2389 | if (wsink->id == snd_soc_dapm_input) { | |
2390 | if (wsource->id == snd_soc_dapm_micbias || | |
2391 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2392 | wsource->id == snd_soc_dapm_line || |
2393 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2394 | wsink->ext = 1; |
2395 | } | |
2396 | if (wsource->id == snd_soc_dapm_output) { | |
2397 | if (wsink->id == snd_soc_dapm_spk || | |
2398 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2399 | wsink->id == snd_soc_dapm_line || |
2400 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2401 | wsource->ext = 1; |
2402 | } | |
2403 | ||
34742cb0 LPC |
2404 | dapm_mark_dirty(wsource, "Route added"); |
2405 | dapm_mark_dirty(wsink, "Route added"); | |
2406 | ||
2b97eabc RP |
2407 | /* connect static paths */ |
2408 | if (control == NULL) { | |
8ddab3f5 | 2409 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2410 | list_add(&path->list_sink, &wsink->sources); |
2411 | list_add(&path->list_source, &wsource->sinks); | |
2412 | path->connect = 1; | |
2413 | return 0; | |
2414 | } | |
2415 | ||
2416 | /* connect dynamic paths */ | |
dc2bea61 | 2417 | switch (wsink->id) { |
2b97eabc RP |
2418 | case snd_soc_dapm_adc: |
2419 | case snd_soc_dapm_dac: | |
2420 | case snd_soc_dapm_pga: | |
d88429a6 | 2421 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2422 | case snd_soc_dapm_input: |
2423 | case snd_soc_dapm_output: | |
1ab97c8c | 2424 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2425 | case snd_soc_dapm_micbias: |
2426 | case snd_soc_dapm_vmid: | |
2427 | case snd_soc_dapm_pre: | |
2428 | case snd_soc_dapm_post: | |
246d0a17 | 2429 | case snd_soc_dapm_supply: |
62ea874a | 2430 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2431 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2432 | case snd_soc_dapm_aif_in: |
2433 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2434 | case snd_soc_dapm_dai_in: |
2435 | case snd_soc_dapm_dai_out: | |
c74184ed | 2436 | case snd_soc_dapm_dai_link: |
57295073 | 2437 | case snd_soc_dapm_kcontrol: |
8ddab3f5 | 2438 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2439 | list_add(&path->list_sink, &wsink->sources); |
2440 | list_add(&path->list_source, &wsource->sinks); | |
2441 | path->connect = 1; | |
2442 | return 0; | |
2443 | case snd_soc_dapm_mux: | |
24ff33ac | 2444 | case snd_soc_dapm_virt_mux: |
74155556 | 2445 | case snd_soc_dapm_value_mux: |
ce6120cc | 2446 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2447 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2448 | if (ret != 0) |
2449 | goto err; | |
2450 | break; | |
2451 | case snd_soc_dapm_switch: | |
2452 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2453 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2454 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2455 | if (ret != 0) |
2456 | goto err; | |
2457 | break; | |
2458 | case snd_soc_dapm_hp: | |
2459 | case snd_soc_dapm_mic: | |
2460 | case snd_soc_dapm_line: | |
2461 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2462 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2463 | list_add(&path->list_sink, &wsink->sources); |
2464 | list_add(&path->list_source, &wsource->sinks); | |
2465 | path->connect = 0; | |
2466 | return 0; | |
2467 | } | |
fabd0384 | 2468 | |
2b97eabc | 2469 | return 0; |
2553628e LPC |
2470 | err: |
2471 | kfree(path); | |
2472 | return ret; | |
2473 | } | |
2b97eabc | 2474 | |
2553628e LPC |
2475 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
2476 | const struct snd_soc_dapm_route *route) | |
2477 | { | |
2478 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2479 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2480 | const char *sink; | |
2481 | const char *source; | |
2482 | char prefixed_sink[80]; | |
2483 | char prefixed_source[80]; | |
2484 | int ret; | |
2485 | ||
2486 | if (dapm->codec && dapm->codec->name_prefix) { | |
2487 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2488 | dapm->codec->name_prefix, route->sink); | |
2489 | sink = prefixed_sink; | |
2490 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2491 | dapm->codec->name_prefix, route->source); | |
2492 | source = prefixed_source; | |
2493 | } else { | |
2494 | sink = route->sink; | |
2495 | source = route->source; | |
2496 | } | |
2497 | ||
2498 | /* | |
2499 | * find src and dest widgets over all widgets but favor a widget from | |
2500 | * current DAPM context | |
2501 | */ | |
2502 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2503 | if (!wsink && !(strcmp(w->name, sink))) { | |
2504 | wtsink = w; | |
2505 | if (w->dapm == dapm) | |
2506 | wsink = w; | |
2507 | continue; | |
2508 | } | |
2509 | if (!wsource && !(strcmp(w->name, source))) { | |
2510 | wtsource = w; | |
2511 | if (w->dapm == dapm) | |
2512 | wsource = w; | |
2513 | } | |
2514 | } | |
2515 | /* use widget from another DAPM context if not found from this */ | |
2516 | if (!wsink) | |
2517 | wsink = wtsink; | |
2518 | if (!wsource) | |
2519 | wsource = wtsource; | |
2520 | ||
2521 | if (wsource == NULL) { | |
2522 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2523 | route->source); | |
2524 | return -ENODEV; | |
2525 | } | |
2526 | if (wsink == NULL) { | |
2527 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2528 | route->sink); | |
2529 | return -ENODEV; | |
2530 | } | |
2531 | ||
2532 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, | |
2533 | route->connected); | |
2534 | if (ret) | |
2535 | goto err; | |
2536 | ||
2537 | return 0; | |
2b97eabc | 2538 | err: |
30a6a1a4 | 2539 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2540 | source, route->control, sink); |
2b97eabc RP |
2541 | return ret; |
2542 | } | |
105f1c28 | 2543 | |
efcc3c61 MB |
2544 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2545 | const struct snd_soc_dapm_route *route) | |
2546 | { | |
2547 | struct snd_soc_dapm_path *path, *p; | |
2548 | const char *sink; | |
2549 | const char *source; | |
2550 | char prefixed_sink[80]; | |
2551 | char prefixed_source[80]; | |
2552 | ||
2553 | if (route->control) { | |
2554 | dev_err(dapm->dev, | |
30a6a1a4 | 2555 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2556 | return -EINVAL; |
2557 | } | |
2558 | ||
2559 | if (dapm->codec && dapm->codec->name_prefix) { | |
2560 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2561 | dapm->codec->name_prefix, route->sink); | |
2562 | sink = prefixed_sink; | |
2563 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2564 | dapm->codec->name_prefix, route->source); | |
2565 | source = prefixed_source; | |
2566 | } else { | |
2567 | sink = route->sink; | |
2568 | source = route->source; | |
2569 | } | |
2570 | ||
2571 | path = NULL; | |
2572 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2573 | if (strcmp(p->source->name, source) != 0) | |
2574 | continue; | |
2575 | if (strcmp(p->sink->name, sink) != 0) | |
2576 | continue; | |
2577 | path = p; | |
2578 | break; | |
2579 | } | |
2580 | ||
2581 | if (path) { | |
2582 | dapm_mark_dirty(path->source, "Route removed"); | |
2583 | dapm_mark_dirty(path->sink, "Route removed"); | |
2584 | ||
8872293f | 2585 | dapm_free_path(path); |
efcc3c61 | 2586 | } else { |
30a6a1a4 | 2587 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2588 | source, sink); |
2589 | } | |
2590 | ||
2591 | return 0; | |
2592 | } | |
2593 | ||
105f1c28 MB |
2594 | /** |
2595 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2596 | * @dapm: DAPM context |
105f1c28 MB |
2597 | * @route: audio routes |
2598 | * @num: number of routes | |
2599 | * | |
2600 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2601 | * the widget receiving the audio signal, whilst the source is the sender | |
2602 | * of the audio signal. | |
2603 | * | |
2604 | * Returns 0 for success else error. On error all resources can be freed | |
2605 | * with a call to snd_soc_card_free(). | |
2606 | */ | |
ce6120cc | 2607 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2608 | const struct snd_soc_dapm_route *route, int num) |
2609 | { | |
62d4a4b9 | 2610 | int i, r, ret = 0; |
105f1c28 | 2611 | |
a73fb2df | 2612 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2613 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2614 | r = snd_soc_dapm_add_route(dapm, route); |
2615 | if (r < 0) { | |
30a6a1a4 LG |
2616 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2617 | route->source, | |
2618 | route->control ? route->control : "direct", | |
2619 | route->sink); | |
62d4a4b9 | 2620 | ret = r; |
105f1c28 MB |
2621 | } |
2622 | route++; | |
2623 | } | |
a73fb2df | 2624 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2625 | |
60884c27 | 2626 | return ret; |
105f1c28 MB |
2627 | } |
2628 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2629 | ||
efcc3c61 MB |
2630 | /** |
2631 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2632 | * @dapm: DAPM context | |
2633 | * @route: audio routes | |
2634 | * @num: number of routes | |
2635 | * | |
2636 | * Removes routes from the DAPM context. | |
2637 | */ | |
2638 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2639 | const struct snd_soc_dapm_route *route, int num) | |
2640 | { | |
2641 | int i, ret = 0; | |
2642 | ||
2643 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2644 | for (i = 0; i < num; i++) { | |
2645 | snd_soc_dapm_del_route(dapm, route); | |
2646 | route++; | |
2647 | } | |
2648 | mutex_unlock(&dapm->card->dapm_mutex); | |
2649 | ||
2650 | return ret; | |
2651 | } | |
2652 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2653 | ||
bf3a9e13 MB |
2654 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2655 | const struct snd_soc_dapm_route *route) | |
2656 | { | |
2657 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2658 | route->source, | |
2659 | true); | |
2660 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2661 | route->sink, | |
2662 | true); | |
2663 | struct snd_soc_dapm_path *path; | |
2664 | int count = 0; | |
2665 | ||
2666 | if (!source) { | |
30a6a1a4 | 2667 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2668 | route->source); |
2669 | return -ENODEV; | |
2670 | } | |
2671 | ||
2672 | if (!sink) { | |
30a6a1a4 | 2673 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2674 | route->sink); |
2675 | return -ENODEV; | |
2676 | } | |
2677 | ||
2678 | if (route->control || route->connected) | |
30a6a1a4 | 2679 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2680 | route->source, route->sink); |
2681 | ||
2682 | list_for_each_entry(path, &source->sinks, list_source) { | |
2683 | if (path->sink == sink) { | |
2684 | path->weak = 1; | |
2685 | count++; | |
2686 | } | |
2687 | } | |
2688 | ||
2689 | if (count == 0) | |
30a6a1a4 | 2690 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2691 | route->source, route->sink); |
2692 | if (count > 1) | |
30a6a1a4 | 2693 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2694 | count, route->source, route->sink); |
2695 | ||
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | /** | |
2700 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2701 | * @dapm: DAPM context | |
2702 | * @route: audio routes | |
2703 | * @num: number of routes | |
2704 | * | |
2705 | * Mark existing routes matching those specified in the passed array | |
2706 | * as being weak, meaning that they are ignored for the purpose of | |
2707 | * power decisions. The main intended use case is for sidetone paths | |
2708 | * which couple audio between other independent paths if they are both | |
2709 | * active in order to make the combination work better at the user | |
2710 | * level but which aren't intended to be "used". | |
2711 | * | |
2712 | * Note that CODEC drivers should not use this as sidetone type paths | |
2713 | * can frequently also be used as bypass paths. | |
2714 | */ | |
2715 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2716 | const struct snd_soc_dapm_route *route, int num) | |
2717 | { | |
2718 | int i, err; | |
2719 | int ret = 0; | |
2720 | ||
a73fb2df | 2721 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2722 | for (i = 0; i < num; i++) { |
2723 | err = snd_soc_dapm_weak_route(dapm, route); | |
2724 | if (err) | |
2725 | ret = err; | |
2726 | route++; | |
2727 | } | |
a73fb2df | 2728 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2729 | |
2730 | return ret; | |
2731 | } | |
2732 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2733 | ||
2b97eabc RP |
2734 | /** |
2735 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2736 | * @dapm: DAPM context |
2b97eabc RP |
2737 | * |
2738 | * Checks the codec for any new dapm widgets and creates them if found. | |
2739 | * | |
2740 | * Returns 0 for success. | |
2741 | */ | |
824ef826 | 2742 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2743 | { |
2744 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2745 | unsigned int val; |
2b97eabc | 2746 | |
95dd5cd6 | 2747 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2748 | |
95dd5cd6 | 2749 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2750 | { |
2751 | if (w->new) | |
2752 | continue; | |
2753 | ||
fad59888 SW |
2754 | if (w->num_kcontrols) { |
2755 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2756 | sizeof(struct snd_kcontrol *), | |
2757 | GFP_KERNEL); | |
a73fb2df | 2758 | if (!w->kcontrols) { |
95dd5cd6 | 2759 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2760 | return -ENOMEM; |
a73fb2df | 2761 | } |
fad59888 SW |
2762 | } |
2763 | ||
2b97eabc RP |
2764 | switch(w->id) { |
2765 | case snd_soc_dapm_switch: | |
2766 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2767 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2768 | dapm_new_mixer(w); |
2b97eabc RP |
2769 | break; |
2770 | case snd_soc_dapm_mux: | |
24ff33ac | 2771 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2772 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2773 | dapm_new_mux(w); |
2b97eabc | 2774 | break; |
2b97eabc | 2775 | case snd_soc_dapm_pga: |
d88429a6 | 2776 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2777 | dapm_new_pga(w); |
2b97eabc | 2778 | break; |
7ca3a18b | 2779 | default: |
2b97eabc RP |
2780 | break; |
2781 | } | |
b66a70d5 MB |
2782 | |
2783 | /* Read the initial power state from the device */ | |
2784 | if (w->reg >= 0) { | |
de9ba98b LPC |
2785 | val = soc_widget_read(w, w->reg) >> w->shift; |
2786 | val &= w->mask; | |
2787 | if (val == w->on_val) | |
b66a70d5 MB |
2788 | w->power = 1; |
2789 | } | |
2790 | ||
2b97eabc | 2791 | w->new = 1; |
d5d1e0be | 2792 | |
7508b12a | 2793 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2794 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2795 | } |
2796 | ||
95dd5cd6 LPC |
2797 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2798 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2799 | return 0; |
2800 | } | |
2801 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2802 | ||
2803 | /** | |
2804 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2805 | * @kcontrol: mixer control | |
ac11a2b3 | 2806 | * @ucontrol: control element information |
2b97eabc RP |
2807 | * |
2808 | * Callback to get the value of a dapm mixer control. | |
2809 | * | |
2810 | * Returns 0 for success. | |
2811 | */ | |
2812 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2813 | struct snd_ctl_elem_value *ucontrol) | |
2814 | { | |
eee5d7f9 | 2815 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
57295073 | 2816 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2817 | struct soc_mixer_control *mc = |
2818 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2819 | int reg = mc->reg; |
815ecf8d | 2820 | unsigned int shift = mc->shift; |
4eaa9819 | 2821 | int max = mc->max; |
815ecf8d | 2822 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2823 | unsigned int invert = mc->invert; |
57295073 | 2824 | unsigned int val; |
da602ab8 BT |
2825 | |
2826 | if (snd_soc_volsw_is_stereo(mc)) | |
eee5d7f9 | 2827 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2828 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2829 | kcontrol->id.name); |
2b97eabc | 2830 | |
57295073 | 2831 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
249ce138 | 2832 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) |
57295073 LPC |
2833 | val = (snd_soc_read(codec, reg) >> shift) & mask; |
2834 | else | |
2835 | val = dapm_kcontrol_get_value(kcontrol); | |
2836 | mutex_unlock(&card->dapm_mutex); | |
2837 | ||
da602ab8 | 2838 | if (invert) |
57295073 LPC |
2839 | ucontrol->value.integer.value[0] = max - val; |
2840 | else | |
2841 | ucontrol->value.integer.value[0] = val; | |
2b97eabc RP |
2842 | |
2843 | return 0; | |
2844 | } | |
2845 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2846 | ||
2847 | /** | |
2848 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2849 | * @kcontrol: mixer control | |
ac11a2b3 | 2850 | * @ucontrol: control element information |
2b97eabc RP |
2851 | * |
2852 | * Callback to set the value of a dapm mixer control. | |
2853 | * | |
2854 | * Returns 0 for success. | |
2855 | */ | |
2856 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2857 | struct snd_ctl_elem_value *ucontrol) | |
2858 | { | |
eee5d7f9 | 2859 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2860 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2861 | struct soc_mixer_control *mc = |
2862 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2863 | int reg = mc->reg; |
815ecf8d | 2864 | unsigned int shift = mc->shift; |
4eaa9819 | 2865 | int max = mc->max; |
815ecf8d JS |
2866 | unsigned int mask = (1 << fls(max)) - 1; |
2867 | unsigned int invert = mc->invert; | |
e9cf7049 | 2868 | unsigned int val; |
97404f2e MB |
2869 | int connect, change; |
2870 | struct snd_soc_dapm_update update; | |
2b97eabc | 2871 | |
da602ab8 | 2872 | if (snd_soc_volsw_is_stereo(mc)) |
eee5d7f9 | 2873 | dev_warn(codec->dapm.dev, |
30a6a1a4 | 2874 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2875 | kcontrol->id.name); |
2876 | ||
2b97eabc | 2877 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2878 | connect = !!val; |
2b97eabc RP |
2879 | |
2880 | if (invert) | |
a7a4ac86 | 2881 | val = max - val; |
2b97eabc | 2882 | |
3cd04343 | 2883 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2884 | |
249ce138 | 2885 | change = dapm_kcontrol_set_value(kcontrol, val); |
57295073 | 2886 | |
249ce138 LPC |
2887 | if (reg != SND_SOC_NOPM) { |
2888 | mask = mask << shift; | |
2889 | val = val << shift; | |
2890 | ||
2891 | change = snd_soc_test_bits(codec, reg, mask, val); | |
2892 | } | |
57295073 | 2893 | |
97404f2e | 2894 | if (change) { |
249ce138 LPC |
2895 | if (reg != SND_SOC_NOPM) { |
2896 | update.kcontrol = kcontrol; | |
2897 | update.reg = reg; | |
2898 | update.mask = mask; | |
2899 | update.val = val; | |
97404f2e | 2900 | |
249ce138 LPC |
2901 | card->update = &update; |
2902 | } | |
97404f2e | 2903 | |
95dd5cd6 | 2904 | soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 2905 | |
564c6504 | 2906 | card->update = NULL; |
283375ce MB |
2907 | } |
2908 | ||
a73fb2df | 2909 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2910 | return change; |
2b97eabc RP |
2911 | } |
2912 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2913 | ||
2914 | /** | |
2915 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2916 | * @kcontrol: mixer control | |
ac11a2b3 | 2917 | * @ucontrol: control element information |
2b97eabc RP |
2918 | * |
2919 | * Callback to get the value of a dapm enumerated double mixer control. | |
2920 | * | |
2921 | * Returns 0 for success. | |
2922 | */ | |
2923 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2924 | struct snd_ctl_elem_value *ucontrol) | |
2925 | { | |
eee5d7f9 | 2926 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
2b97eabc | 2927 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2928 | unsigned int val; |
2b97eabc | 2929 | |
eee5d7f9 | 2930 | val = snd_soc_read(codec, e->reg); |
86767b7d | 2931 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2932 | if (e->shift_l != e->shift_r) |
2933 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2934 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2935 | |
2936 | return 0; | |
2937 | } | |
2938 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2939 | ||
2940 | /** | |
2941 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2942 | * @kcontrol: mixer control | |
ac11a2b3 | 2943 | * @ucontrol: control element information |
2b97eabc RP |
2944 | * |
2945 | * Callback to set the value of a dapm enumerated double mixer control. | |
2946 | * | |
2947 | * Returns 0 for success. | |
2948 | */ | |
2949 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2950 | struct snd_ctl_elem_value *ucontrol) | |
2951 | { | |
cf7c1de2 | 2952 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 2953 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2954 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2955 | unsigned int val, mux, change; |
86767b7d | 2956 | unsigned int mask; |
97404f2e | 2957 | struct snd_soc_dapm_update update; |
2b97eabc | 2958 | |
f8ba0b7b | 2959 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2960 | return -EINVAL; |
2961 | mux = ucontrol->value.enumerated.item[0]; | |
2962 | val = mux << e->shift_l; | |
86767b7d | 2963 | mask = e->mask << e->shift_l; |
2b97eabc | 2964 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2965 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2966 | return -EINVAL; |
2967 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2968 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2969 | } |
2970 | ||
3cd04343 | 2971 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2972 | |
eee5d7f9 | 2973 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 2974 | if (change) { |
ce6cfaf1 LPC |
2975 | update.kcontrol = kcontrol; |
2976 | update.reg = e->reg; | |
2977 | update.mask = mask; | |
2978 | update.val = val; | |
564c6504 | 2979 | card->update = &update; |
1642e3d4 | 2980 | |
95dd5cd6 | 2981 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
1642e3d4 | 2982 | |
564c6504 | 2983 | card->update = NULL; |
fafd2176 | 2984 | } |
2b97eabc | 2985 | |
a73fb2df | 2986 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2987 | return change; |
2b97eabc RP |
2988 | } |
2989 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2990 | ||
d2b247a8 MB |
2991 | /** |
2992 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2993 | * @kcontrol: mixer control | |
2994 | * @ucontrol: control element information | |
2995 | * | |
2996 | * Returns 0 for success. | |
2997 | */ | |
2998 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2999 | struct snd_ctl_elem_value *ucontrol) | |
3000 | { | |
cf7c1de2 | 3001 | ucontrol->value.enumerated.item[0] = dapm_kcontrol_get_value(kcontrol); |
d2b247a8 MB |
3002 | return 0; |
3003 | } | |
3004 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
3005 | ||
3006 | /** | |
3007 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
3008 | * @kcontrol: mixer control | |
3009 | * @ucontrol: control element information | |
3010 | * | |
3011 | * Returns 0 for success. | |
3012 | */ | |
3013 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
3014 | struct snd_ctl_elem_value *ucontrol) | |
3015 | { | |
cf7c1de2 | 3016 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3017 | struct snd_soc_card *card = codec->card; |
cf7c1de2 | 3018 | unsigned int value; |
d2b247a8 MB |
3019 | struct soc_enum *e = |
3020 | (struct soc_enum *)kcontrol->private_value; | |
3021 | int change; | |
d2b247a8 MB |
3022 | |
3023 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
3024 | return -EINVAL; | |
3025 | ||
3cd04343 | 3026 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 | 3027 | |
cf7c1de2 LPC |
3028 | value = ucontrol->value.enumerated.item[0]; |
3029 | change = dapm_kcontrol_set_value(kcontrol, value); | |
3030 | if (change) | |
3031 | soc_dapm_mux_update_power(card, kcontrol, value, e); | |
d2b247a8 | 3032 | |
a73fb2df | 3033 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 3034 | return change; |
d2b247a8 MB |
3035 | } |
3036 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
3037 | ||
2e72f8e3 PU |
3038 | /** |
3039 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
3040 | * callback | |
3041 | * @kcontrol: mixer control | |
3042 | * @ucontrol: control element information | |
3043 | * | |
3044 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
3045 | * | |
3046 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3047 | * used for handling bitfield coded enumeration for example. | |
3048 | * | |
3049 | * Returns 0 for success. | |
3050 | */ | |
3051 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
3052 | struct snd_ctl_elem_value *ucontrol) | |
3053 | { | |
eee5d7f9 | 3054 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
74155556 | 3055 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 3056 | unsigned int reg_val, val, mux; |
2e72f8e3 | 3057 | |
eee5d7f9 | 3058 | reg_val = snd_soc_read(codec, e->reg); |
2e72f8e3 PU |
3059 | val = (reg_val >> e->shift_l) & e->mask; |
3060 | for (mux = 0; mux < e->max; mux++) { | |
3061 | if (val == e->values[mux]) | |
3062 | break; | |
3063 | } | |
3064 | ucontrol->value.enumerated.item[0] = mux; | |
3065 | if (e->shift_l != e->shift_r) { | |
3066 | val = (reg_val >> e->shift_r) & e->mask; | |
3067 | for (mux = 0; mux < e->max; mux++) { | |
3068 | if (val == e->values[mux]) | |
3069 | break; | |
3070 | } | |
3071 | ucontrol->value.enumerated.item[1] = mux; | |
3072 | } | |
3073 | ||
3074 | return 0; | |
3075 | } | |
3076 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
3077 | ||
3078 | /** | |
3079 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
3080 | * callback | |
3081 | * @kcontrol: mixer control | |
3082 | * @ucontrol: control element information | |
3083 | * | |
3084 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
3085 | * | |
3086 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
3087 | * used for handling bitfield coded enumeration for example. | |
3088 | * | |
3089 | * Returns 0 for success. | |
3090 | */ | |
3091 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
3092 | struct snd_ctl_elem_value *ucontrol) | |
3093 | { | |
cf7c1de2 | 3094 | struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); |
a73fb2df | 3095 | struct snd_soc_card *card = codec->card; |
74155556 | 3096 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 3097 | unsigned int val, mux, change; |
46f5822f | 3098 | unsigned int mask; |
97404f2e | 3099 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
3100 | |
3101 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
3102 | return -EINVAL; | |
3103 | mux = ucontrol->value.enumerated.item[0]; | |
3104 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
3105 | mask = e->mask << e->shift_l; | |
3106 | if (e->shift_l != e->shift_r) { | |
3107 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
3108 | return -EINVAL; | |
3109 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
3110 | mask |= e->mask << e->shift_r; | |
3111 | } | |
3112 | ||
3cd04343 | 3113 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3114 | |
eee5d7f9 | 3115 | change = snd_soc_test_bits(codec, e->reg, mask, val); |
fafd2176 | 3116 | if (change) { |
ce6cfaf1 LPC |
3117 | update.kcontrol = kcontrol; |
3118 | update.reg = e->reg; | |
3119 | update.mask = mask; | |
3120 | update.val = val; | |
564c6504 | 3121 | card->update = &update; |
1642e3d4 | 3122 | |
95dd5cd6 | 3123 | soc_dapm_mux_update_power(card, kcontrol, mux, e); |
fafd2176 | 3124 | |
564c6504 | 3125 | card->update = NULL; |
fafd2176 | 3126 | } |
2e72f8e3 | 3127 | |
a73fb2df | 3128 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 3129 | return change; |
2e72f8e3 PU |
3130 | } |
3131 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
3132 | ||
8b37dbd2 MB |
3133 | /** |
3134 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3135 | * | |
3136 | * @kcontrol: mixer control | |
3137 | * @uinfo: control element information | |
3138 | * | |
3139 | * Callback to provide information about a pin switch control. | |
3140 | */ | |
3141 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3142 | struct snd_ctl_elem_info *uinfo) | |
3143 | { | |
3144 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3145 | uinfo->count = 1; | |
3146 | uinfo->value.integer.min = 0; | |
3147 | uinfo->value.integer.max = 1; | |
3148 | ||
3149 | return 0; | |
3150 | } | |
3151 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3152 | ||
3153 | /** | |
3154 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3155 | * | |
3156 | * @kcontrol: mixer control | |
3157 | * @ucontrol: Value | |
3158 | */ | |
3159 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3160 | struct snd_ctl_elem_value *ucontrol) | |
3161 | { | |
48a8c394 | 3162 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3163 | const char *pin = (const char *)kcontrol->private_value; |
3164 | ||
3cd04343 | 3165 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3166 | |
3167 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3168 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3169 | |
a73fb2df | 3170 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3171 | |
3172 | return 0; | |
3173 | } | |
3174 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3175 | ||
3176 | /** | |
3177 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3178 | * | |
3179 | * @kcontrol: mixer control | |
3180 | * @ucontrol: Value | |
3181 | */ | |
3182 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3183 | struct snd_ctl_elem_value *ucontrol) | |
3184 | { | |
48a8c394 | 3185 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3186 | const char *pin = (const char *)kcontrol->private_value; |
3187 | ||
3cd04343 | 3188 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3189 | |
3190 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3191 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3192 | else |
48a8c394 | 3193 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3194 | |
a73fb2df | 3195 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3196 | |
a73fb2df | 3197 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3198 | return 0; |
3199 | } | |
3200 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3201 | ||
5ba06fc9 MB |
3202 | static struct snd_soc_dapm_widget * |
3203 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3204 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3205 | { |
3206 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3207 | int ret; |
2b97eabc RP |
3208 | |
3209 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3210 | return NULL; |
2b97eabc | 3211 | |
62ea874a MB |
3212 | switch (w->id) { |
3213 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3214 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3215 | if (IS_ERR(w->regulator)) { | |
3216 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3217 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3218 | w->name, ret); |
5ba06fc9 | 3219 | return NULL; |
62ea874a | 3220 | } |
8784c77a | 3221 | |
de9ba98b | 3222 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3223 | ret = regulator_allow_bypass(w->regulator, true); |
3224 | if (ret != 0) | |
3225 | dev_warn(w->dapm->dev, | |
3226 | "ASoC: Failed to unbypass %s: %d\n", | |
3227 | w->name, ret); | |
3228 | } | |
62ea874a | 3229 | break; |
d7e7eb91 | 3230 | case snd_soc_dapm_clock_supply: |
165961ef | 3231 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3232 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3233 | if (IS_ERR(w->clk)) { |
3234 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3235 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3236 | w->name, ret); |
3237 | return NULL; | |
3238 | } | |
ec02995a MB |
3239 | #else |
3240 | return NULL; | |
3241 | #endif | |
d7e7eb91 | 3242 | break; |
62ea874a MB |
3243 | default: |
3244 | break; | |
3245 | } | |
2b97eabc | 3246 | |
88e8b9a8 | 3247 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3248 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3249 | dapm->codec->name_prefix, widget->name); | |
3250 | else | |
3251 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3252 | ||
ead9b919 JN |
3253 | if (w->name == NULL) { |
3254 | kfree(w); | |
5ba06fc9 | 3255 | return NULL; |
ead9b919 | 3256 | } |
ead9b919 | 3257 | |
7ca3a18b MB |
3258 | switch (w->id) { |
3259 | case snd_soc_dapm_switch: | |
3260 | case snd_soc_dapm_mixer: | |
3261 | case snd_soc_dapm_mixer_named_ctl: | |
3262 | w->power_check = dapm_generic_check_power; | |
3263 | break; | |
3264 | case snd_soc_dapm_mux: | |
3265 | case snd_soc_dapm_virt_mux: | |
3266 | case snd_soc_dapm_value_mux: | |
3267 | w->power_check = dapm_generic_check_power; | |
3268 | break; | |
4616274d | 3269 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3270 | w->power_check = dapm_adc_check_power; |
3271 | break; | |
4616274d | 3272 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3273 | w->power_check = dapm_dac_check_power; |
3274 | break; | |
63c69a6e MB |
3275 | case snd_soc_dapm_adc: |
3276 | case snd_soc_dapm_aif_out: | |
3277 | case snd_soc_dapm_dac: | |
3278 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3279 | case snd_soc_dapm_pga: |
3280 | case snd_soc_dapm_out_drv: | |
3281 | case snd_soc_dapm_input: | |
3282 | case snd_soc_dapm_output: | |
3283 | case snd_soc_dapm_micbias: | |
3284 | case snd_soc_dapm_spk: | |
3285 | case snd_soc_dapm_hp: | |
3286 | case snd_soc_dapm_mic: | |
3287 | case snd_soc_dapm_line: | |
c74184ed | 3288 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3289 | w->power_check = dapm_generic_check_power; |
3290 | break; | |
3291 | case snd_soc_dapm_supply: | |
62ea874a | 3292 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3293 | case snd_soc_dapm_clock_supply: |
57295073 | 3294 | case snd_soc_dapm_kcontrol: |
7ca3a18b MB |
3295 | w->power_check = dapm_supply_check_power; |
3296 | break; | |
3297 | default: | |
3298 | w->power_check = dapm_always_on_check_power; | |
3299 | break; | |
3300 | } | |
3301 | ||
ce6120cc LG |
3302 | w->dapm = dapm; |
3303 | w->codec = dapm->codec; | |
b7950641 | 3304 | w->platform = dapm->platform; |
2b97eabc RP |
3305 | INIT_LIST_HEAD(&w->sources); |
3306 | INIT_LIST_HEAD(&w->sinks); | |
3307 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3308 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3309 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3310 | |
3311 | /* machine layer set ups unconnected pins and insertions */ | |
3312 | w->connected = 1; | |
5ba06fc9 | 3313 | return w; |
2b97eabc | 3314 | } |
2b97eabc | 3315 | |
4ba1327a MB |
3316 | /** |
3317 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3318 | * @dapm: DAPM context |
4ba1327a MB |
3319 | * @widget: widget array |
3320 | * @num: number of widgets | |
3321 | * | |
3322 | * Creates new DAPM controls based upon the templates. | |
3323 | * | |
3324 | * Returns 0 for success else error. | |
3325 | */ | |
ce6120cc | 3326 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3327 | const struct snd_soc_dapm_widget *widget, |
3328 | int num) | |
3329 | { | |
5ba06fc9 MB |
3330 | struct snd_soc_dapm_widget *w; |
3331 | int i; | |
60884c27 | 3332 | int ret = 0; |
4ba1327a | 3333 | |
a73fb2df | 3334 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3335 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3336 | w = snd_soc_dapm_new_control(dapm, widget); |
3337 | if (!w) { | |
f7d41ae8 | 3338 | dev_err(dapm->dev, |
5ba06fc9 MB |
3339 | "ASoC: Failed to create DAPM control %s\n", |
3340 | widget->name); | |
60884c27 DC |
3341 | ret = -ENOMEM; |
3342 | break; | |
b8b33cb5 | 3343 | } |
4ba1327a MB |
3344 | widget++; |
3345 | } | |
a73fb2df | 3346 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3347 | return ret; |
4ba1327a MB |
3348 | } |
3349 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3350 | ||
c74184ed MB |
3351 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3352 | struct snd_kcontrol *kcontrol, int event) | |
3353 | { | |
3354 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3355 | struct snd_soc_dai *source, *sink; | |
3356 | const struct snd_soc_pcm_stream *config = w->params; | |
3357 | struct snd_pcm_substream substream; | |
9747cec2 | 3358 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3359 | u64 fmt; |
3360 | int ret; | |
3361 | ||
bf4edea8 TI |
3362 | if (WARN_ON(!config) || |
3363 | WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) | |
3364 | return -EINVAL; | |
c74184ed MB |
3365 | |
3366 | /* We only support a single source and sink, pick the first */ | |
3367 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3368 | list_sink); | |
3369 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3370 | list_source); | |
3371 | ||
bf4edea8 TI |
3372 | if (WARN_ON(!source_p || !sink_p) || |
3373 | WARN_ON(!sink_p->source || !source_p->sink) || | |
3374 | WARN_ON(!source_p->source || !sink_p->sink)) | |
3375 | return -EINVAL; | |
c74184ed MB |
3376 | |
3377 | source = source_p->source->priv; | |
3378 | sink = sink_p->sink->priv; | |
3379 | ||
3380 | /* Be a little careful as we don't want to overflow the mask array */ | |
3381 | if (config->formats) { | |
3382 | fmt = ffs(config->formats) - 1; | |
3383 | } else { | |
30a6a1a4 | 3384 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3385 | config->formats); |
3386 | fmt = 0; | |
3387 | } | |
3388 | ||
3389 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3390 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3391 | if (!params) { | |
3392 | ret = -ENOMEM; | |
3393 | goto out; | |
3394 | } | |
3395 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3396 | |
9747cec2 | 3397 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3398 | config->rate_min; |
9747cec2 | 3399 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3400 | config->rate_max; |
3401 | ||
9747cec2 | 3402 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3403 | = config->channels_min; |
9747cec2 | 3404 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3405 | = config->channels_max; |
3406 | ||
3407 | memset(&substream, 0, sizeof(substream)); | |
3408 | ||
3409 | switch (event) { | |
3410 | case SND_SOC_DAPM_PRE_PMU: | |
3411 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3412 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3413 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3414 | params, source); |
c74184ed MB |
3415 | if (ret != 0) { |
3416 | dev_err(source->dev, | |
30a6a1a4 | 3417 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3418 | goto out; |
c74184ed MB |
3419 | } |
3420 | } | |
3421 | ||
3422 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3423 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3424 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3425 | sink); |
3426 | if (ret != 0) { | |
3427 | dev_err(sink->dev, | |
30a6a1a4 | 3428 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3429 | goto out; |
c74184ed MB |
3430 | } |
3431 | } | |
3432 | break; | |
3433 | ||
3434 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3435 | ret = snd_soc_dai_digital_mute(sink, 0, |
3436 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3437 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3438 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3439 | ret = 0; |
c74184ed MB |
3440 | break; |
3441 | ||
3442 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3443 | ret = snd_soc_dai_digital_mute(sink, 1, |
3444 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3445 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3446 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3447 | ret = 0; |
c74184ed MB |
3448 | break; |
3449 | ||
3450 | default: | |
a6ed0608 | 3451 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3452 | return -EINVAL; |
3453 | } | |
3454 | ||
9747cec2 MB |
3455 | out: |
3456 | kfree(params); | |
3457 | return ret; | |
c74184ed MB |
3458 | } |
3459 | ||
3460 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3461 | const struct snd_soc_pcm_stream *params, | |
3462 | struct snd_soc_dapm_widget *source, | |
3463 | struct snd_soc_dapm_widget *sink) | |
3464 | { | |
3465 | struct snd_soc_dapm_route routes[2]; | |
3466 | struct snd_soc_dapm_widget template; | |
3467 | struct snd_soc_dapm_widget *w; | |
3468 | size_t len; | |
3469 | char *link_name; | |
3470 | ||
3471 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3472 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3473 | if (!link_name) | |
3474 | return -ENOMEM; | |
3475 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3476 | ||
3477 | memset(&template, 0, sizeof(template)); | |
3478 | template.reg = SND_SOC_NOPM; | |
3479 | template.id = snd_soc_dapm_dai_link; | |
3480 | template.name = link_name; | |
3481 | template.event = snd_soc_dai_link_event; | |
3482 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3483 | SND_SOC_DAPM_PRE_PMD; | |
3484 | ||
30a6a1a4 | 3485 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3486 | |
3487 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3488 | if (!w) { | |
30a6a1a4 | 3489 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3490 | link_name); |
3491 | return -ENOMEM; | |
3492 | } | |
3493 | ||
3494 | w->params = params; | |
3495 | ||
3496 | memset(&routes, 0, sizeof(routes)); | |
3497 | ||
3498 | routes[0].source = source->name; | |
3499 | routes[0].sink = link_name; | |
3500 | routes[1].source = link_name; | |
3501 | routes[1].sink = sink->name; | |
3502 | ||
3503 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3504 | ARRAY_SIZE(routes)); | |
3505 | } | |
3506 | ||
888df395 MB |
3507 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3508 | struct snd_soc_dai *dai) | |
2b97eabc | 3509 | { |
888df395 | 3510 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3511 | struct snd_soc_dapm_widget *w; |
3512 | ||
888df395 MB |
3513 | WARN_ON(dapm->dev != dai->dev); |
3514 | ||
3515 | memset(&template, 0, sizeof(template)); | |
3516 | template.reg = SND_SOC_NOPM; | |
3517 | ||
3518 | if (dai->driver->playback.stream_name) { | |
4616274d | 3519 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3520 | template.name = dai->driver->playback.stream_name; |
3521 | template.sname = dai->driver->playback.stream_name; | |
3522 | ||
30a6a1a4 | 3523 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3524 | template.name); |
3525 | ||
3526 | w = snd_soc_dapm_new_control(dapm, &template); | |
3527 | if (!w) { | |
30a6a1a4 | 3528 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3529 | dai->driver->playback.stream_name); |
298402a3 | 3530 | return -ENOMEM; |
888df395 MB |
3531 | } |
3532 | ||
3533 | w->priv = dai; | |
3534 | dai->playback_widget = w; | |
3535 | } | |
3536 | ||
3537 | if (dai->driver->capture.stream_name) { | |
4616274d | 3538 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3539 | template.name = dai->driver->capture.stream_name; |
3540 | template.sname = dai->driver->capture.stream_name; | |
3541 | ||
30a6a1a4 | 3542 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3543 | template.name); |
3544 | ||
3545 | w = snd_soc_dapm_new_control(dapm, &template); | |
3546 | if (!w) { | |
30a6a1a4 | 3547 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3548 | dai->driver->capture.stream_name); |
298402a3 | 3549 | return -ENOMEM; |
888df395 MB |
3550 | } |
3551 | ||
3552 | w->priv = dai; | |
3553 | dai->capture_widget = w; | |
3554 | } | |
3555 | ||
3556 | return 0; | |
3557 | } | |
3558 | ||
3559 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3560 | { | |
3561 | struct snd_soc_dapm_widget *dai_w, *w; | |
3562 | struct snd_soc_dai *dai; | |
888df395 MB |
3563 | |
3564 | /* For each DAI widget... */ | |
3565 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3566 | switch (dai_w->id) { |
3567 | case snd_soc_dapm_dai_in: | |
3568 | case snd_soc_dapm_dai_out: | |
3569 | break; | |
3570 | default: | |
2b97eabc | 3571 | continue; |
4616274d | 3572 | } |
888df395 MB |
3573 | |
3574 | dai = dai_w->priv; | |
3575 | ||
3576 | /* ...find all widgets with the same stream and link them */ | |
3577 | list_for_each_entry(w, &card->widgets, list) { | |
3578 | if (w->dapm != dai_w->dapm) | |
3579 | continue; | |
3580 | ||
4616274d MB |
3581 | switch (w->id) { |
3582 | case snd_soc_dapm_dai_in: | |
3583 | case snd_soc_dapm_dai_out: | |
888df395 | 3584 | continue; |
4616274d MB |
3585 | default: |
3586 | break; | |
3587 | } | |
888df395 | 3588 | |
19c2c5f5 | 3589 | if (!w->sname || !strstr(w->sname, dai_w->name)) |
888df395 MB |
3590 | continue; |
3591 | ||
3592 | if (dai->driver->playback.stream_name && | |
3593 | strstr(w->sname, | |
3594 | dai->driver->playback.stream_name)) { | |
888df395 | 3595 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3596 | dai->playback_widget->name, w->name); |
888df395 | 3597 | |
2553628e LPC |
3598 | snd_soc_dapm_add_path(w->dapm, |
3599 | dai->playback_widget, w, NULL, NULL); | |
888df395 MB |
3600 | } |
3601 | ||
3602 | if (dai->driver->capture.stream_name && | |
3603 | strstr(w->sname, | |
3604 | dai->driver->capture.stream_name)) { | |
888df395 | 3605 | dev_dbg(dai->dev, "%s -> %s\n", |
2553628e | 3606 | w->name, dai->capture_widget->name); |
888df395 | 3607 | |
2553628e LPC |
3608 | snd_soc_dapm_add_path(w->dapm, w, |
3609 | dai->capture_widget, NULL, NULL); | |
2b97eabc RP |
3610 | } |
3611 | } | |
3612 | } | |
2b97eabc | 3613 | |
888df395 MB |
3614 | return 0; |
3615 | } | |
64a648c2 | 3616 | |
d9b0951b LG |
3617 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3618 | int event) | |
2b97eabc | 3619 | { |
7bd3a6f3 | 3620 | |
d9b0951b LG |
3621 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3622 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3623 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3624 | |
d9b0951b LG |
3625 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3626 | w_cpu = cpu_dai->playback_widget; | |
3627 | w_codec = codec_dai->playback_widget; | |
3628 | } else { | |
3629 | w_cpu = cpu_dai->capture_widget; | |
3630 | w_codec = codec_dai->capture_widget; | |
3631 | } | |
2b97eabc | 3632 | |
d9b0951b | 3633 | if (w_cpu) { |
fe360685 | 3634 | |
d9b0951b LG |
3635 | dapm_mark_dirty(w_cpu, "stream event"); |
3636 | ||
3637 | switch (event) { | |
3638 | case SND_SOC_DAPM_STREAM_START: | |
3639 | w_cpu->active = 1; | |
3640 | break; | |
3641 | case SND_SOC_DAPM_STREAM_STOP: | |
3642 | w_cpu->active = 0; | |
3643 | break; | |
3644 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3645 | case SND_SOC_DAPM_STREAM_RESUME: | |
3646 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3647 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3648 | break; | |
3649 | } | |
3650 | } | |
3651 | ||
3652 | if (w_codec) { | |
3653 | ||
3654 | dapm_mark_dirty(w_codec, "stream event"); | |
3655 | ||
3656 | switch (event) { | |
3657 | case SND_SOC_DAPM_STREAM_START: | |
3658 | w_codec->active = 1; | |
3659 | break; | |
3660 | case SND_SOC_DAPM_STREAM_STOP: | |
3661 | w_codec->active = 0; | |
3662 | break; | |
3663 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3664 | case SND_SOC_DAPM_STREAM_RESUME: | |
3665 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3666 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3667 | break; | |
3668 | } | |
2b97eabc | 3669 | } |
2b97eabc | 3670 | |
95dd5cd6 | 3671 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3672 | } |
3673 | ||
3674 | /** | |
3675 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3676 | * @rtd: PCM runtime data | |
3677 | * @stream: stream name | |
3678 | * @event: stream event | |
3679 | * | |
3680 | * Sends a stream event to the dapm core. The core then makes any | |
3681 | * necessary widget power changes. | |
3682 | * | |
3683 | * Returns 0 for success else error. | |
3684 | */ | |
d9b0951b LG |
3685 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3686 | int event) | |
ce6120cc | 3687 | { |
a73fb2df | 3688 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3689 | |
3cd04343 | 3690 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3691 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3692 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3693 | } |
2b97eabc RP |
3694 | |
3695 | /** | |
a5302181 | 3696 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3697 | * @dapm: DAPM context |
a5302181 | 3698 | * @pin: pin name |
2b97eabc | 3699 | * |
74b8f955 | 3700 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3701 | * a valid audio route and active audio stream. |
3702 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3703 | * do any widget power switching. | |
2b97eabc | 3704 | */ |
ce6120cc | 3705 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3706 | { |
ce6120cc | 3707 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3708 | } |
3709 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3710 | |
da34183e MB |
3711 | /** |
3712 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3713 | * @dapm: DAPM context |
da34183e MB |
3714 | * @pin: pin name |
3715 | * | |
3716 | * Enables input/output pin regardless of any other state. This is | |
3717 | * intended for use with microphone bias supplies used in microphone | |
3718 | * jack detection. | |
3719 | * | |
3720 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3721 | * do any widget power switching. | |
3722 | */ | |
ce6120cc LG |
3723 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3724 | const char *pin) | |
da34183e | 3725 | { |
91a5fca4 | 3726 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3727 | |
91a5fca4 | 3728 | if (!w) { |
30a6a1a4 | 3729 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3730 | return -EINVAL; |
0d86733c MB |
3731 | } |
3732 | ||
30a6a1a4 | 3733 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3734 | w->connected = 1; |
3735 | w->force = 1; | |
75c1f891 | 3736 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3737 | |
91a5fca4 | 3738 | return 0; |
da34183e MB |
3739 | } |
3740 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3741 | ||
a5302181 LG |
3742 | /** |
3743 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3744 | * @dapm: DAPM context |
a5302181 LG |
3745 | * @pin: pin name |
3746 | * | |
74b8f955 | 3747 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3748 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3749 | * do any widget power switching. | |
3750 | */ | |
ce6120cc LG |
3751 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3752 | const char *pin) | |
a5302181 | 3753 | { |
ce6120cc | 3754 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3755 | } |
a5302181 | 3756 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3757 | |
5817b52a MB |
3758 | /** |
3759 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3760 | * @dapm: DAPM context |
5817b52a MB |
3761 | * @pin: pin name |
3762 | * | |
3763 | * Marks the specified pin as being not connected, disabling it along | |
3764 | * any parent or child widgets. At present this is identical to | |
3765 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3766 | * additional things such as disabling controls which only affect | |
3767 | * paths through the pin. | |
3768 | * | |
3769 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3770 | * do any widget power switching. | |
3771 | */ | |
ce6120cc | 3772 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3773 | { |
ce6120cc | 3774 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3775 | } |
3776 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3777 | ||
eeec12bf | 3778 | /** |
a5302181 | 3779 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3780 | * @dapm: DAPM context |
a5302181 | 3781 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3782 | * |
a5302181 | 3783 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3784 | * |
a5302181 | 3785 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3786 | */ |
ce6120cc LG |
3787 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3788 | const char *pin) | |
eeec12bf | 3789 | { |
91a5fca4 | 3790 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3791 | |
91a5fca4 LPC |
3792 | if (w) |
3793 | return w->connected; | |
a68b38ad | 3794 | |
eeec12bf GG |
3795 | return 0; |
3796 | } | |
a5302181 | 3797 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3798 | |
1547aba9 MB |
3799 | /** |
3800 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3801 | * @dapm: DAPM context |
1547aba9 MB |
3802 | * @pin: audio signal pin endpoint (or start point) |
3803 | * | |
3804 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3805 | * system is disabled a path between two endpoints flagged as ignoring | |
3806 | * suspend will not be disabled. The path must already be enabled via | |
3807 | * normal means at suspend time, it will not be turned on if it was not | |
3808 | * already enabled. | |
3809 | */ | |
ce6120cc LG |
3810 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3811 | const char *pin) | |
1547aba9 | 3812 | { |
91a5fca4 | 3813 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3814 | |
91a5fca4 | 3815 | if (!w) { |
30a6a1a4 | 3816 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3817 | return -EINVAL; |
1547aba9 MB |
3818 | } |
3819 | ||
91a5fca4 LPC |
3820 | w->ignore_suspend = 1; |
3821 | ||
3822 | return 0; | |
1547aba9 MB |
3823 | } |
3824 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3825 | ||
1633281b SW |
3826 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3827 | struct snd_soc_dapm_widget *w) | |
3828 | { | |
3829 | struct snd_soc_dapm_path *p; | |
3830 | ||
3831 | list_for_each_entry(p, &card->paths, list) { | |
3832 | if ((p->source == w) || (p->sink == w)) { | |
3833 | dev_dbg(card->dev, | |
3834 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3835 | p->source->name, p->source->id, p->source->dapm, | |
3836 | p->sink->name, p->sink->id, p->sink->dapm); | |
3837 | ||
3838 | /* Connected to something other than the codec */ | |
3839 | if (p->source->dapm != p->sink->dapm) | |
3840 | return true; | |
3841 | /* | |
3842 | * Loopback connection from codec external pin to | |
3843 | * codec external pin | |
3844 | */ | |
3845 | if (p->sink->id == snd_soc_dapm_input) { | |
3846 | switch (p->source->id) { | |
3847 | case snd_soc_dapm_output: | |
3848 | case snd_soc_dapm_micbias: | |
3849 | return true; | |
3850 | default: | |
3851 | break; | |
3852 | } | |
3853 | } | |
3854 | } | |
3855 | } | |
3856 | ||
3857 | return false; | |
3858 | } | |
3859 | ||
3860 | /** | |
3861 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3862 | * @codec: The codec whose pins should be processed | |
3863 | * | |
3864 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3865 | * which are unused. Pins are used if they are connected externally to the | |
3866 | * codec, whether that be to some other device, or a loop-back connection to | |
3867 | * the codec itself. | |
3868 | */ | |
3869 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3870 | { | |
3871 | struct snd_soc_card *card = codec->card; | |
3872 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3873 | struct snd_soc_dapm_widget *w; | |
3874 | ||
30a6a1a4 | 3875 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3876 | &card->dapm, &codec->dapm); |
3877 | ||
3878 | list_for_each_entry(w, &card->widgets, list) { | |
3879 | if (w->dapm != dapm) | |
3880 | continue; | |
3881 | switch (w->id) { | |
3882 | case snd_soc_dapm_input: | |
3883 | case snd_soc_dapm_output: | |
3884 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3885 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3886 | w->name); |
3887 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3888 | dev_dbg(codec->dev, |
1633281b SW |
3889 | "... Not in map; disabling\n"); |
3890 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3891 | } | |
3892 | break; | |
3893 | default: | |
3894 | break; | |
3895 | } | |
3896 | } | |
3897 | } | |
3898 | ||
2b97eabc RP |
3899 | /** |
3900 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3901 | * @dapm: DAPM context |
2b97eabc RP |
3902 | * |
3903 | * Free all dapm widgets and resources. | |
3904 | */ | |
ce6120cc | 3905 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3906 | { |
ce6120cc | 3907 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3908 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3909 | dapm_free_widgets(dapm); |
7be31be8 | 3910 | list_del(&dapm->list); |
2b97eabc RP |
3911 | } |
3912 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3913 | ||
ce6120cc | 3914 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3915 | { |
01005a72 | 3916 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3917 | struct snd_soc_dapm_widget *w; |
3918 | LIST_HEAD(down_list); | |
3919 | int powerdown = 0; | |
3920 | ||
01005a72 LG |
3921 | mutex_lock(&card->dapm_mutex); |
3922 | ||
97c866de JN |
3923 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3924 | if (w->dapm != dapm) | |
3925 | continue; | |
51737470 | 3926 | if (w->power) { |
828a842f | 3927 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3928 | w->power = 0; |
51737470 MB |
3929 | powerdown = 1; |
3930 | } | |
3931 | } | |
3932 | ||
3933 | /* If there were no widgets to power down we're already in | |
3934 | * standby. | |
3935 | */ | |
3936 | if (powerdown) { | |
7679e42e MB |
3937 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3938 | snd_soc_dapm_set_bias_level(dapm, | |
3939 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 3940 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
3941 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3942 | snd_soc_dapm_set_bias_level(dapm, | |
3943 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3944 | } |
01005a72 LG |
3945 | |
3946 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3947 | } |
3948 | ||
3949 | /* | |
3950 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3951 | */ | |
3952 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3953 | { | |
3954 | struct snd_soc_codec *codec; | |
3955 | ||
445632ad | 3956 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3957 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3958 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3959 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3960 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3961 | } |
51737470 MB |
3962 | } |
3963 | ||
2b97eabc | 3964 | /* Module information */ |
d331124d | 3965 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3966 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3967 | MODULE_LICENSE("GPL"); |