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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc RP |
16 | * o Platform power domain - can support external components i.e. amps and |
17 | * mic/meadphone insertion events. | |
18 | * o Automatic Mic Bias support | |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
3a4fa0a2 | 21 | * o Delayed powerdown of audio susbsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
24 | * Todo: | |
25 | * o DAPM power change sequencing - allow for configurable per | |
26 | * codec sequences. | |
27 | * o Support for analogue bias optimisation. | |
28 | * o Support for reduced codec oversampling rates. | |
29 | * o Support for reduced codec bias currents. | |
30 | */ | |
31 | ||
32 | #include <linux/module.h> | |
33 | #include <linux/moduleparam.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/pm.h> | |
37 | #include <linux/bitops.h> | |
38 | #include <linux/platform_device.h> | |
39 | #include <linux/jiffies.h> | |
20496ff3 | 40 | #include <linux/debugfs.h> |
5a0e3ad6 | 41 | #include <linux/slab.h> |
2b97eabc RP |
42 | #include <sound/core.h> |
43 | #include <sound/pcm.h> | |
44 | #include <sound/pcm_params.h> | |
ce6120cc | 45 | #include <sound/soc.h> |
2b97eabc RP |
46 | #include <sound/soc-dapm.h> |
47 | #include <sound/initval.h> | |
48 | ||
2b97eabc RP |
49 | /* dapm power sequences - make this per codec in the future */ |
50 | static int dapm_up_seq[] = { | |
38357ab2 MB |
51 | [snd_soc_dapm_pre] = 0, |
52 | [snd_soc_dapm_supply] = 1, | |
53 | [snd_soc_dapm_micbias] = 2, | |
010ff262 MB |
54 | [snd_soc_dapm_aif_in] = 3, |
55 | [snd_soc_dapm_aif_out] = 3, | |
56 | [snd_soc_dapm_mic] = 4, | |
57 | [snd_soc_dapm_mux] = 5, | |
58 | [snd_soc_dapm_value_mux] = 5, | |
59 | [snd_soc_dapm_dac] = 6, | |
60 | [snd_soc_dapm_mixer] = 7, | |
61 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
62 | [snd_soc_dapm_pga] = 8, | |
63 | [snd_soc_dapm_adc] = 9, | |
64 | [snd_soc_dapm_hp] = 10, | |
65 | [snd_soc_dapm_spk] = 10, | |
66 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 67 | }; |
ca9c1aae | 68 | |
2b97eabc | 69 | static int dapm_down_seq[] = { |
38357ab2 MB |
70 | [snd_soc_dapm_pre] = 0, |
71 | [snd_soc_dapm_adc] = 1, | |
72 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 73 | [snd_soc_dapm_spk] = 2, |
38357ab2 MB |
74 | [snd_soc_dapm_pga] = 4, |
75 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
76 | [snd_soc_dapm_mixer] = 5, |
77 | [snd_soc_dapm_dac] = 6, | |
78 | [snd_soc_dapm_mic] = 7, | |
79 | [snd_soc_dapm_micbias] = 8, | |
80 | [snd_soc_dapm_mux] = 9, | |
81 | [snd_soc_dapm_value_mux] = 9, | |
010ff262 MB |
82 | [snd_soc_dapm_aif_in] = 10, |
83 | [snd_soc_dapm_aif_out] = 10, | |
84 | [snd_soc_dapm_supply] = 11, | |
85 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
86 | }; |
87 | ||
12ef193d | 88 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
89 | { |
90 | if (pop_time) | |
91 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
92 | } | |
93 | ||
12ef193d | 94 | static void pop_dbg(u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
95 | { |
96 | va_list args; | |
97 | ||
98 | va_start(args, fmt); | |
99 | ||
100 | if (pop_time) { | |
101 | vprintk(fmt, args); | |
15e4c72f MB |
102 | } |
103 | ||
104 | va_end(args); | |
105 | } | |
106 | ||
2b97eabc | 107 | /* create a new dapm widget */ |
88cb4290 | 108 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
109 | const struct snd_soc_dapm_widget *_widget) |
110 | { | |
88cb4290 | 111 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
112 | } |
113 | ||
452c5eaa MB |
114 | /** |
115 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
f0fba2ad | 116 | * @card: audio device |
452c5eaa MB |
117 | * @level: level to configure |
118 | * | |
119 | * Configure the bias (power) levels for the SoC audio device. | |
120 | * | |
121 | * Returns 0 for success else error. | |
122 | */ | |
f0fba2ad | 123 | static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card, |
ce6120cc LG |
124 | struct snd_soc_dapm_context *dapm, |
125 | enum snd_soc_bias_level level) | |
452c5eaa | 126 | { |
452c5eaa MB |
127 | int ret = 0; |
128 | ||
f83fba8b MB |
129 | switch (level) { |
130 | case SND_SOC_BIAS_ON: | |
ce6120cc | 131 | dev_dbg(dapm->dev, "Setting full bias\n"); |
f83fba8b MB |
132 | break; |
133 | case SND_SOC_BIAS_PREPARE: | |
ce6120cc | 134 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
f83fba8b MB |
135 | break; |
136 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 137 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
f83fba8b MB |
138 | break; |
139 | case SND_SOC_BIAS_OFF: | |
ce6120cc | 140 | dev_dbg(dapm->dev, "Setting bias off\n"); |
f83fba8b MB |
141 | break; |
142 | default: | |
ce6120cc | 143 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
f83fba8b MB |
144 | return -EINVAL; |
145 | } | |
146 | ||
f0fba2ad | 147 | if (card && card->set_bias_level) |
452c5eaa | 148 | ret = card->set_bias_level(card, level); |
474e09ca | 149 | if (ret == 0) { |
ce6120cc LG |
150 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
151 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); | |
474e09ca | 152 | else |
ce6120cc | 153 | dapm->bias_level = level; |
474e09ca | 154 | } |
452c5eaa MB |
155 | |
156 | return ret; | |
157 | } | |
158 | ||
2b97eabc RP |
159 | /* set up initial codec paths */ |
160 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
161 | struct snd_soc_dapm_path *p, int i) | |
162 | { | |
163 | switch (w->id) { | |
164 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
165 | case snd_soc_dapm_mixer: |
166 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 167 | int val; |
4eaa9819 JS |
168 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
169 | w->kcontrols[i].private_value; | |
815ecf8d JS |
170 | unsigned int reg = mc->reg; |
171 | unsigned int shift = mc->shift; | |
4eaa9819 | 172 | int max = mc->max; |
815ecf8d JS |
173 | unsigned int mask = (1 << fls(max)) - 1; |
174 | unsigned int invert = mc->invert; | |
2b97eabc RP |
175 | |
176 | val = snd_soc_read(w->codec, reg); | |
177 | val = (val >> shift) & mask; | |
178 | ||
179 | if ((invert && !val) || (!invert && val)) | |
180 | p->connect = 1; | |
181 | else | |
182 | p->connect = 0; | |
183 | } | |
184 | break; | |
185 | case snd_soc_dapm_mux: { | |
186 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
187 | int val, item, bitmask; | |
188 | ||
f8ba0b7b | 189 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
190 | ; |
191 | val = snd_soc_read(w->codec, e->reg); | |
192 | item = (val >> e->shift_l) & (bitmask - 1); | |
193 | ||
194 | p->connect = 0; | |
f8ba0b7b | 195 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
196 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
197 | p->connect = 1; | |
198 | } | |
199 | } | |
200 | break; | |
2e72f8e3 | 201 | case snd_soc_dapm_value_mux: { |
74155556 | 202 | struct soc_enum *e = (struct soc_enum *) |
2e72f8e3 PU |
203 | w->kcontrols[i].private_value; |
204 | int val, item; | |
205 | ||
206 | val = snd_soc_read(w->codec, e->reg); | |
207 | val = (val >> e->shift_l) & e->mask; | |
208 | for (item = 0; item < e->max; item++) { | |
209 | if (val == e->values[item]) | |
210 | break; | |
211 | } | |
212 | ||
213 | p->connect = 0; | |
214 | for (i = 0; i < e->max; i++) { | |
215 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
216 | p->connect = 1; | |
217 | } | |
218 | } | |
219 | break; | |
2b97eabc RP |
220 | /* does not effect routing - always connected */ |
221 | case snd_soc_dapm_pga: | |
222 | case snd_soc_dapm_output: | |
223 | case snd_soc_dapm_adc: | |
224 | case snd_soc_dapm_input: | |
225 | case snd_soc_dapm_dac: | |
226 | case snd_soc_dapm_micbias: | |
227 | case snd_soc_dapm_vmid: | |
246d0a17 | 228 | case snd_soc_dapm_supply: |
010ff262 MB |
229 | case snd_soc_dapm_aif_in: |
230 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
231 | p->connect = 1; |
232 | break; | |
233 | /* does effect routing - dynamically connected */ | |
234 | case snd_soc_dapm_hp: | |
235 | case snd_soc_dapm_mic: | |
236 | case snd_soc_dapm_spk: | |
237 | case snd_soc_dapm_line: | |
238 | case snd_soc_dapm_pre: | |
239 | case snd_soc_dapm_post: | |
240 | p->connect = 0; | |
241 | break; | |
242 | } | |
243 | } | |
244 | ||
74b8f955 | 245 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 246 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
247 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
248 | struct snd_soc_dapm_path *path, const char *control_name, | |
249 | const struct snd_kcontrol_new *kcontrol) | |
250 | { | |
251 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
252 | int i; | |
253 | ||
f8ba0b7b | 254 | for (i = 0; i < e->max; i++) { |
2b97eabc | 255 | if (!(strcmp(control_name, e->texts[i]))) { |
ce6120cc | 256 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
257 | list_add(&path->list_sink, &dest->sources); |
258 | list_add(&path->list_source, &src->sinks); | |
259 | path->name = (char*)e->texts[i]; | |
260 | dapm_set_path_status(dest, path, 0); | |
261 | return 0; | |
262 | } | |
263 | } | |
264 | ||
265 | return -ENODEV; | |
266 | } | |
267 | ||
74b8f955 | 268 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 269 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
270 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
271 | struct snd_soc_dapm_path *path, const char *control_name) | |
272 | { | |
273 | int i; | |
274 | ||
275 | /* search for mixer kcontrol */ | |
276 | for (i = 0; i < dest->num_kcontrols; i++) { | |
277 | if (!strcmp(control_name, dest->kcontrols[i].name)) { | |
ce6120cc | 278 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
279 | list_add(&path->list_sink, &dest->sources); |
280 | list_add(&path->list_source, &src->sinks); | |
281 | path->name = dest->kcontrols[i].name; | |
282 | dapm_set_path_status(dest, path, i); | |
283 | return 0; | |
284 | } | |
285 | } | |
286 | return -ENODEV; | |
287 | } | |
288 | ||
289 | /* update dapm codec register bits */ | |
290 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) | |
291 | { | |
292 | int change, power; | |
46f5822f | 293 | unsigned int old, new; |
2b97eabc | 294 | struct snd_soc_codec *codec = widget->codec; |
ce6120cc | 295 | struct snd_soc_dapm_context *dapm = widget->dapm; |
3a45b867 | 296 | struct snd_soc_card *card = dapm->card; |
2b97eabc RP |
297 | |
298 | /* check for valid widgets */ | |
299 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || | |
300 | widget->id == snd_soc_dapm_output || | |
301 | widget->id == snd_soc_dapm_hp || | |
302 | widget->id == snd_soc_dapm_mic || | |
303 | widget->id == snd_soc_dapm_line || | |
304 | widget->id == snd_soc_dapm_spk) | |
305 | return 0; | |
306 | ||
307 | power = widget->power; | |
308 | if (widget->invert) | |
309 | power = (power ? 0:1); | |
310 | ||
311 | old = snd_soc_read(codec, widget->reg); | |
312 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); | |
313 | ||
314 | change = old != new; | |
315 | if (change) { | |
3a45b867 | 316 | pop_dbg(card->pop_time, "pop test %s : %s in %d ms\n", |
12ef193d | 317 | widget->name, widget->power ? "on" : "off", |
3a45b867 JN |
318 | card->pop_time); |
319 | pop_wait(card->pop_time); | |
69224719 | 320 | snd_soc_write(codec, widget->reg, new); |
2b97eabc | 321 | } |
f7d41ae8 JN |
322 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
323 | old, new, change); | |
2b97eabc RP |
324 | return change; |
325 | } | |
326 | ||
2b97eabc | 327 | /* create new dapm mixer control */ |
ce6120cc | 328 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
329 | struct snd_soc_dapm_widget *w) |
330 | { | |
331 | int i, ret = 0; | |
219b93f5 | 332 | size_t name_len; |
2b97eabc | 333 | struct snd_soc_dapm_path *path; |
ce6120cc | 334 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
335 | |
336 | /* add kcontrol */ | |
337 | for (i = 0; i < w->num_kcontrols; i++) { | |
338 | ||
339 | /* match name */ | |
340 | list_for_each_entry(path, &w->sources, list_sink) { | |
341 | ||
342 | /* mixer/mux paths name must match control name */ | |
343 | if (path->name != (char*)w->kcontrols[i].name) | |
344 | continue; | |
345 | ||
ca9c1aae IM |
346 | /* add dapm control with long name. |
347 | * for dapm_mixer this is the concatenation of the | |
348 | * mixer and kcontrol name. | |
349 | * for dapm_mixer_named_ctl this is simply the | |
350 | * kcontrol name. | |
351 | */ | |
352 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 353 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
354 | name_len += 1 + strlen(w->name); |
355 | ||
219b93f5 | 356 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 357 | |
2b97eabc RP |
358 | if (path->long_name == NULL) |
359 | return -ENOMEM; | |
360 | ||
ca9c1aae | 361 | switch (w->id) { |
ca9c1aae IM |
362 | default: |
363 | snprintf(path->long_name, name_len, "%s %s", | |
364 | w->name, w->kcontrols[i].name); | |
07495f3e | 365 | break; |
ca9c1aae IM |
366 | case snd_soc_dapm_mixer_named_ctl: |
367 | snprintf(path->long_name, name_len, "%s", | |
368 | w->kcontrols[i].name); | |
07495f3e | 369 | break; |
ca9c1aae IM |
370 | } |
371 | ||
219b93f5 MB |
372 | path->long_name[name_len - 1] = '\0'; |
373 | ||
2b97eabc RP |
374 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
375 | path->long_name); | |
ce6120cc | 376 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 377 | if (ret < 0) { |
f7d41ae8 JN |
378 | dev_err(dapm->dev, |
379 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
380 | path->long_name, ret); | |
2b97eabc RP |
381 | kfree(path->long_name); |
382 | path->long_name = NULL; | |
383 | return ret; | |
384 | } | |
385 | } | |
386 | } | |
387 | return ret; | |
388 | } | |
389 | ||
390 | /* create new dapm mux control */ | |
ce6120cc | 391 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
392 | struct snd_soc_dapm_widget *w) |
393 | { | |
394 | struct snd_soc_dapm_path *path = NULL; | |
395 | struct snd_kcontrol *kcontrol; | |
ce6120cc | 396 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
397 | int ret = 0; |
398 | ||
399 | if (!w->num_kcontrols) { | |
f7d41ae8 | 400 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
401 | return -EINVAL; |
402 | } | |
403 | ||
404 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); | |
ce6120cc LG |
405 | ret = snd_ctl_add(card, kcontrol); |
406 | ||
2b97eabc RP |
407 | if (ret < 0) |
408 | goto err; | |
409 | ||
410 | list_for_each_entry(path, &w->sources, list_sink) | |
411 | path->kcontrol = kcontrol; | |
412 | ||
413 | return ret; | |
414 | ||
415 | err: | |
f7d41ae8 | 416 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
417 | return ret; |
418 | } | |
419 | ||
420 | /* create new dapm volume control */ | |
ce6120cc | 421 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
422 | struct snd_soc_dapm_widget *w) |
423 | { | |
a6c65736 | 424 | if (w->num_kcontrols) |
f7d41ae8 JN |
425 | dev_err(w->dapm->dev, |
426 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 427 | |
a6c65736 | 428 | return 0; |
2b97eabc RP |
429 | } |
430 | ||
431 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 432 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
433 | { |
434 | struct snd_soc_dapm_path *p; | |
435 | ||
ce6120cc | 436 | list_for_each_entry(p, &dapm->paths, list) |
2b97eabc RP |
437 | p->walked = 0; |
438 | } | |
439 | ||
9949788b MB |
440 | /* We implement power down on suspend by checking the power state of |
441 | * the ALSA card - when we are suspending the ALSA state for the card | |
442 | * is set to D3. | |
443 | */ | |
444 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
445 | { | |
ce6120cc | 446 | int level = snd_power_get_state(widget->dapm->codec->card->snd_card); |
9949788b | 447 | |
f0fba2ad | 448 | switch (level) { |
9949788b MB |
449 | case SNDRV_CTL_POWER_D3hot: |
450 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 451 | if (widget->ignore_suspend) |
f7d41ae8 JN |
452 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
453 | widget->name); | |
1547aba9 | 454 | return widget->ignore_suspend; |
9949788b MB |
455 | default: |
456 | return 1; | |
457 | } | |
458 | } | |
459 | ||
2b97eabc RP |
460 | /* |
461 | * Recursively check for a completed path to an active or physically connected | |
462 | * output widget. Returns number of complete paths. | |
463 | */ | |
464 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
465 | { | |
466 | struct snd_soc_dapm_path *path; | |
467 | int con = 0; | |
468 | ||
246d0a17 MB |
469 | if (widget->id == snd_soc_dapm_supply) |
470 | return 0; | |
471 | ||
010ff262 MB |
472 | switch (widget->id) { |
473 | case snd_soc_dapm_adc: | |
474 | case snd_soc_dapm_aif_out: | |
475 | if (widget->active) | |
9949788b | 476 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
477 | default: |
478 | break; | |
479 | } | |
2b97eabc RP |
480 | |
481 | if (widget->connected) { | |
482 | /* connected pin ? */ | |
483 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 484 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
485 | |
486 | /* connected jack or spk ? */ | |
487 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 488 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 489 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
490 | } |
491 | ||
492 | list_for_each_entry(path, &widget->sinks, list_source) { | |
493 | if (path->walked) | |
494 | continue; | |
495 | ||
496 | if (path->sink && path->connect) { | |
497 | path->walked = 1; | |
498 | con += is_connected_output_ep(path->sink); | |
499 | } | |
500 | } | |
501 | ||
502 | return con; | |
503 | } | |
504 | ||
505 | /* | |
506 | * Recursively check for a completed path to an active or physically connected | |
507 | * input widget. Returns number of complete paths. | |
508 | */ | |
509 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
510 | { | |
511 | struct snd_soc_dapm_path *path; | |
512 | int con = 0; | |
513 | ||
246d0a17 MB |
514 | if (widget->id == snd_soc_dapm_supply) |
515 | return 0; | |
516 | ||
2b97eabc | 517 | /* active stream ? */ |
010ff262 MB |
518 | switch (widget->id) { |
519 | case snd_soc_dapm_dac: | |
520 | case snd_soc_dapm_aif_in: | |
521 | if (widget->active) | |
9949788b | 522 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
523 | default: |
524 | break; | |
525 | } | |
2b97eabc RP |
526 | |
527 | if (widget->connected) { | |
528 | /* connected pin ? */ | |
529 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 530 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
531 | |
532 | /* connected VMID/Bias for lower pops */ | |
533 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 534 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
535 | |
536 | /* connected jack ? */ | |
eaeae5d9 PU |
537 | if (widget->id == snd_soc_dapm_mic || |
538 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 539 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
540 | } |
541 | ||
542 | list_for_each_entry(path, &widget->sources, list_sink) { | |
543 | if (path->walked) | |
544 | continue; | |
545 | ||
546 | if (path->source && path->connect) { | |
547 | path->walked = 1; | |
548 | con += is_connected_input_ep(path->source); | |
549 | } | |
550 | } | |
551 | ||
552 | return con; | |
553 | } | |
554 | ||
e2be2ccf JN |
555 | /* |
556 | * Handler for generic register modifier widget. | |
557 | */ | |
558 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
559 | struct snd_kcontrol *kcontrol, int event) | |
560 | { | |
561 | unsigned int val; | |
562 | ||
563 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
564 | val = w->on_val; | |
565 | else | |
566 | val = w->off_val; | |
567 | ||
568 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
569 | w->mask << w->shift, val << w->shift); | |
570 | ||
571 | return 0; | |
572 | } | |
11589418 | 573 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 574 | |
025756ec MB |
575 | /* Standard power change method, used to apply power changes to most |
576 | * widgets. | |
577 | */ | |
578 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) | |
579 | { | |
580 | int ret; | |
581 | ||
582 | /* call any power change event handlers */ | |
583 | if (w->event) | |
f7d41ae8 | 584 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
025756ec MB |
585 | w->power ? "on" : "off", |
586 | w->name, w->event_flags); | |
587 | ||
588 | /* power up pre event */ | |
589 | if (w->power && w->event && | |
590 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
591 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
592 | if (ret < 0) | |
593 | return ret; | |
594 | } | |
595 | ||
596 | /* power down pre event */ | |
597 | if (!w->power && w->event && | |
598 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
599 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
600 | if (ret < 0) | |
601 | return ret; | |
602 | } | |
603 | ||
025756ec MB |
604 | dapm_update_bits(w); |
605 | ||
025756ec MB |
606 | /* power up post event */ |
607 | if (w->power && w->event && | |
608 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
609 | ret = w->event(w, | |
610 | NULL, SND_SOC_DAPM_POST_PMU); | |
611 | if (ret < 0) | |
612 | return ret; | |
613 | } | |
614 | ||
615 | /* power down post event */ | |
616 | if (!w->power && w->event && | |
617 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
618 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
619 | if (ret < 0) | |
620 | return ret; | |
621 | } | |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
cd0f2d47 MB |
626 | /* Generic check to see if a widget should be powered. |
627 | */ | |
628 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
629 | { | |
630 | int in, out; | |
631 | ||
632 | in = is_connected_input_ep(w); | |
ce6120cc | 633 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 634 | out = is_connected_output_ep(w); |
ce6120cc | 635 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
636 | return out != 0 && in != 0; |
637 | } | |
638 | ||
6ea31b9f MB |
639 | /* Check to see if an ADC has power */ |
640 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
641 | { | |
642 | int in; | |
643 | ||
644 | if (w->active) { | |
645 | in = is_connected_input_ep(w); | |
ce6120cc | 646 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
647 | return in != 0; |
648 | } else { | |
649 | return dapm_generic_check_power(w); | |
650 | } | |
651 | } | |
652 | ||
653 | /* Check to see if a DAC has power */ | |
654 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
655 | { | |
656 | int out; | |
657 | ||
658 | if (w->active) { | |
659 | out = is_connected_output_ep(w); | |
ce6120cc | 660 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
661 | return out != 0; |
662 | } else { | |
663 | return dapm_generic_check_power(w); | |
664 | } | |
665 | } | |
666 | ||
246d0a17 MB |
667 | /* Check to see if a power supply is needed */ |
668 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
669 | { | |
670 | struct snd_soc_dapm_path *path; | |
671 | int power = 0; | |
672 | ||
673 | /* Check if one of our outputs is connected */ | |
674 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
675 | if (path->connected && |
676 | !path->connected(path->source, path->sink)) | |
677 | continue; | |
678 | ||
246d0a17 MB |
679 | if (path->sink && path->sink->power_check && |
680 | path->sink->power_check(path->sink)) { | |
681 | power = 1; | |
682 | break; | |
683 | } | |
684 | } | |
685 | ||
ce6120cc | 686 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
687 | |
688 | return power; | |
689 | } | |
690 | ||
38357ab2 MB |
691 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
692 | struct snd_soc_dapm_widget *b, | |
693 | int sort[]) | |
42aa3418 | 694 | { |
d207c68d MB |
695 | if (a->codec != b->codec) |
696 | return (unsigned long)a - (unsigned long)b; | |
38357ab2 MB |
697 | if (sort[a->id] != sort[b->id]) |
698 | return sort[a->id] - sort[b->id]; | |
b22ead2a MB |
699 | if (a->reg != b->reg) |
700 | return a->reg - b->reg; | |
42aa3418 | 701 | |
38357ab2 MB |
702 | return 0; |
703 | } | |
42aa3418 | 704 | |
38357ab2 MB |
705 | /* Insert a widget in order into a DAPM power sequence. */ |
706 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
707 | struct list_head *list, | |
708 | int sort[]) | |
709 | { | |
710 | struct snd_soc_dapm_widget *w; | |
711 | ||
712 | list_for_each_entry(w, list, power_list) | |
713 | if (dapm_seq_compare(new_widget, w, sort) < 0) { | |
714 | list_add_tail(&new_widget->power_list, &w->power_list); | |
715 | return; | |
716 | } | |
717 | ||
718 | list_add_tail(&new_widget->power_list, list); | |
719 | } | |
720 | ||
b22ead2a | 721 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 722 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 723 | struct list_head *pending) |
163cac06 MB |
724 | { |
725 | struct snd_soc_dapm_widget *w; | |
3a45b867 | 726 | struct snd_soc_card *card = dapm->card; |
81628103 | 727 | int reg, power, ret; |
b22ead2a MB |
728 | unsigned int value = 0; |
729 | unsigned int mask = 0; | |
730 | unsigned int cur_mask; | |
731 | ||
732 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
733 | power_list)->reg; | |
734 | ||
735 | list_for_each_entry(w, pending, power_list) { | |
736 | cur_mask = 1 << w->shift; | |
737 | BUG_ON(reg != w->reg); | |
738 | ||
739 | if (w->invert) | |
740 | power = !w->power; | |
741 | else | |
742 | power = w->power; | |
743 | ||
744 | mask |= cur_mask; | |
745 | if (power) | |
746 | value |= cur_mask; | |
747 | ||
3a45b867 | 748 | pop_dbg(card->pop_time, |
b22ead2a MB |
749 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
750 | w->name, reg, value, mask); | |
81628103 MB |
751 | |
752 | /* power up pre event */ | |
753 | if (w->power && w->event && | |
754 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
3a45b867 | 755 | pop_dbg(card->pop_time, "pop test : %s PRE_PMU\n", |
81628103 MB |
756 | w->name); |
757 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
42aa3418 | 758 | if (ret < 0) |
f7d41ae8 JN |
759 | dev_err(dapm->dev, |
760 | "%s: pre event failed: %d\n", | |
761 | w->name, ret); | |
81628103 MB |
762 | } |
763 | ||
764 | /* power down pre event */ | |
765 | if (!w->power && w->event && | |
766 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
3a45b867 | 767 | pop_dbg(card->pop_time, "pop test : %s PRE_PMD\n", |
81628103 MB |
768 | w->name); |
769 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
42aa3418 | 770 | if (ret < 0) |
f7d41ae8 JN |
771 | dev_err(dapm->dev, |
772 | "%s: pre event failed: %d\n", | |
773 | w->name, ret); | |
42aa3418 | 774 | } |
81628103 MB |
775 | } |
776 | ||
777 | if (reg >= 0) { | |
3a45b867 | 778 | pop_dbg(card->pop_time, |
81628103 | 779 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
780 | value, mask, reg, card->pop_time); |
781 | pop_wait(card->pop_time); | |
ce6120cc | 782 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
783 | } |
784 | ||
81628103 MB |
785 | list_for_each_entry(w, pending, power_list) { |
786 | /* power up post event */ | |
787 | if (w->power && w->event && | |
788 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
3a45b867 | 789 | pop_dbg(card->pop_time, "pop test : %s POST_PMU\n", |
81628103 | 790 | w->name); |
42aa3418 MB |
791 | ret = w->event(w, |
792 | NULL, SND_SOC_DAPM_POST_PMU); | |
793 | if (ret < 0) | |
f7d41ae8 JN |
794 | dev_err(dapm->dev, |
795 | "%s: post event failed: %d\n", | |
796 | w->name, ret); | |
81628103 MB |
797 | } |
798 | ||
799 | /* power down post event */ | |
800 | if (!w->power && w->event && | |
801 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
3a45b867 | 802 | pop_dbg(card->pop_time, "pop test : %s POST_PMD\n", |
81628103 MB |
803 | w->name); |
804 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
42aa3418 | 805 | if (ret < 0) |
f7d41ae8 JN |
806 | dev_err(dapm->dev, |
807 | "%s: post event failed: %d\n", | |
808 | w->name, ret); | |
42aa3418 | 809 | } |
81628103 | 810 | } |
b22ead2a | 811 | } |
42aa3418 | 812 | |
b22ead2a MB |
813 | /* Apply a DAPM power sequence. |
814 | * | |
815 | * We walk over a pre-sorted list of widgets to apply power to. In | |
816 | * order to minimise the number of writes to the device required | |
817 | * multiple widgets will be updated in a single write where possible. | |
818 | * Currently anything that requires more than a single write is not | |
819 | * handled. | |
820 | */ | |
ce6120cc LG |
821 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
822 | struct list_head *list, int event, int sort[]) | |
b22ead2a MB |
823 | { |
824 | struct snd_soc_dapm_widget *w, *n; | |
825 | LIST_HEAD(pending); | |
826 | int cur_sort = -1; | |
827 | int cur_reg = SND_SOC_NOPM; | |
163cac06 MB |
828 | int ret; |
829 | ||
b22ead2a MB |
830 | list_for_each_entry_safe(w, n, list, power_list) { |
831 | ret = 0; | |
832 | ||
833 | /* Do we need to apply any queued changes? */ | |
834 | if (sort[w->id] != cur_sort || w->reg != cur_reg) { | |
835 | if (!list_empty(&pending)) | |
ce6120cc | 836 | dapm_seq_run_coalesced(dapm, &pending); |
b22ead2a MB |
837 | |
838 | INIT_LIST_HEAD(&pending); | |
839 | cur_sort = -1; | |
840 | cur_reg = SND_SOC_NOPM; | |
841 | } | |
842 | ||
163cac06 MB |
843 | switch (w->id) { |
844 | case snd_soc_dapm_pre: | |
845 | if (!w->event) | |
b22ead2a MB |
846 | list_for_each_entry_safe_continue(w, n, list, |
847 | power_list); | |
163cac06 | 848 | |
b22ead2a | 849 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
850 | ret = w->event(w, |
851 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 852 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
853 | ret = w->event(w, |
854 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
855 | break; |
856 | ||
857 | case snd_soc_dapm_post: | |
858 | if (!w->event) | |
b22ead2a MB |
859 | list_for_each_entry_safe_continue(w, n, list, |
860 | power_list); | |
163cac06 | 861 | |
b22ead2a | 862 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
863 | ret = w->event(w, |
864 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 865 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
866 | ret = w->event(w, |
867 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
868 | break; |
869 | ||
b22ead2a MB |
870 | case snd_soc_dapm_input: |
871 | case snd_soc_dapm_output: | |
872 | case snd_soc_dapm_hp: | |
873 | case snd_soc_dapm_mic: | |
874 | case snd_soc_dapm_line: | |
875 | case snd_soc_dapm_spk: | |
876 | /* No register support currently */ | |
163cac06 | 877 | ret = dapm_generic_apply_power(w); |
163cac06 | 878 | break; |
b22ead2a MB |
879 | |
880 | default: | |
81628103 MB |
881 | /* Queue it up for application */ |
882 | cur_sort = sort[w->id]; | |
883 | cur_reg = w->reg; | |
884 | list_move(&w->power_list, &pending); | |
885 | break; | |
163cac06 | 886 | } |
b22ead2a MB |
887 | |
888 | if (ret < 0) | |
f7d41ae8 JN |
889 | dev_err(w->dapm->dev, |
890 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 891 | } |
b22ead2a MB |
892 | |
893 | if (!list_empty(&pending)) | |
ce6120cc | 894 | dapm_seq_run_coalesced(dapm, &pending); |
42aa3418 MB |
895 | } |
896 | ||
2b97eabc RP |
897 | /* |
898 | * Scan each dapm widget for complete audio path. | |
899 | * A complete path is a route that has valid endpoints i.e.:- | |
900 | * | |
901 | * o DAC to output pin. | |
902 | * o Input Pin to ADC. | |
903 | * o Input pin to Output pin (bypass, sidetone) | |
904 | * o DAC to ADC (loopback). | |
905 | */ | |
ce6120cc | 906 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 907 | { |
ce6120cc | 908 | struct snd_soc_card *card = dapm->codec->card; |
2b97eabc | 909 | struct snd_soc_dapm_widget *w; |
291f3bbc MB |
910 | LIST_HEAD(up_list); |
911 | LIST_HEAD(down_list); | |
6d3ddc81 | 912 | int ret = 0; |
38357ab2 | 913 | int power; |
452c5eaa | 914 | int sys_power = 0; |
6d3ddc81 | 915 | |
6d3ddc81 MB |
916 | /* Check which widgets we need to power and store them in |
917 | * lists indicating if they should be powered up or down. | |
918 | */ | |
ce6120cc | 919 | list_for_each_entry(w, &dapm->widgets, list) { |
6d3ddc81 MB |
920 | switch (w->id) { |
921 | case snd_soc_dapm_pre: | |
291f3bbc | 922 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
923 | break; |
924 | case snd_soc_dapm_post: | |
291f3bbc | 925 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 MB |
926 | break; |
927 | ||
928 | default: | |
929 | if (!w->power_check) | |
930 | continue; | |
931 | ||
9949788b | 932 | if (!w->force) |
50b6bce5 | 933 | power = w->power_check(w); |
9949788b MB |
934 | else |
935 | power = 1; | |
936 | if (power) | |
937 | sys_power = 1; | |
452c5eaa | 938 | |
6d3ddc81 MB |
939 | if (w->power == power) |
940 | continue; | |
941 | ||
942 | if (power) | |
291f3bbc | 943 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 | 944 | else |
291f3bbc | 945 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
946 | |
947 | w->power = power; | |
948 | break; | |
949 | } | |
2b97eabc RP |
950 | } |
951 | ||
b14b76a5 MB |
952 | /* If there are no DAPM widgets then try to figure out power from the |
953 | * event type. | |
954 | */ | |
ce6120cc | 955 | if (list_empty(&dapm->widgets)) { |
b14b76a5 MB |
956 | switch (event) { |
957 | case SND_SOC_DAPM_STREAM_START: | |
958 | case SND_SOC_DAPM_STREAM_RESUME: | |
959 | sys_power = 1; | |
960 | break; | |
50b6bce5 MB |
961 | case SND_SOC_DAPM_STREAM_SUSPEND: |
962 | sys_power = 0; | |
963 | break; | |
b14b76a5 | 964 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 965 | switch (dapm->bias_level) { |
a96ca338 MB |
966 | case SND_SOC_BIAS_STANDBY: |
967 | case SND_SOC_BIAS_OFF: | |
968 | sys_power = 0; | |
969 | break; | |
970 | default: | |
971 | sys_power = 1; | |
972 | break; | |
973 | } | |
50b6bce5 | 974 | break; |
b14b76a5 MB |
975 | default: |
976 | break; | |
977 | } | |
978 | } | |
979 | ||
ce6120cc LG |
980 | if (sys_power && dapm->bias_level == SND_SOC_BIAS_OFF) { |
981 | ret = snd_soc_dapm_set_bias_level(card, dapm, | |
a96ca338 MB |
982 | SND_SOC_BIAS_STANDBY); |
983 | if (ret != 0) | |
f7d41ae8 JN |
984 | dev_err(dapm->dev, |
985 | "Failed to turn on bias: %d\n", ret); | |
a96ca338 MB |
986 | } |
987 | ||
452c5eaa | 988 | /* If we're changing to all on or all off then prepare */ |
ce6120cc LG |
989 | if ((sys_power && dapm->bias_level == SND_SOC_BIAS_STANDBY) || |
990 | (!sys_power && dapm->bias_level == SND_SOC_BIAS_ON)) { | |
991 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_PREPARE); | |
452c5eaa | 992 | if (ret != 0) |
f7d41ae8 JN |
993 | dev_err(dapm->dev, |
994 | "Failed to prepare bias: %d\n", ret); | |
452c5eaa MB |
995 | } |
996 | ||
6d3ddc81 | 997 | /* Power down widgets first; try to avoid amplifying pops. */ |
ce6120cc | 998 | dapm_seq_run(dapm, &down_list, event, dapm_down_seq); |
2b97eabc | 999 | |
6d3ddc81 | 1000 | /* Now power up. */ |
ce6120cc | 1001 | dapm_seq_run(dapm, &up_list, event, dapm_up_seq); |
2b97eabc | 1002 | |
452c5eaa | 1003 | /* If we just powered the last thing off drop to standby bias */ |
ce6120cc LG |
1004 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) { |
1005 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_STANDBY); | |
452c5eaa | 1006 | if (ret != 0) |
f7d41ae8 JN |
1007 | dev_err(dapm->dev, |
1008 | "Failed to apply standby bias: %d\n", ret); | |
452c5eaa MB |
1009 | } |
1010 | ||
a96ca338 | 1011 | /* If we're in standby and can support bias off then do that */ |
ce6120cc LG |
1012 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY && |
1013 | dapm->idle_bias_off) { | |
1014 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_OFF); | |
a96ca338 | 1015 | if (ret != 0) |
f7d41ae8 JN |
1016 | dev_err(dapm->dev, |
1017 | "Failed to turn off bias: %d\n", ret); | |
a96ca338 MB |
1018 | } |
1019 | ||
452c5eaa | 1020 | /* If we just powered up then move to active bias */ |
ce6120cc LG |
1021 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && sys_power) { |
1022 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_ON); | |
452c5eaa | 1023 | if (ret != 0) |
f7d41ae8 JN |
1024 | dev_err(dapm->dev, |
1025 | "Failed to apply active bias: %d\n", ret); | |
452c5eaa MB |
1026 | } |
1027 | ||
3a45b867 JN |
1028 | pop_dbg(card->pop_time, "DAPM sequencing finished, waiting %dms\n", |
1029 | card->pop_time); | |
1030 | pop_wait(card->pop_time); | |
cb507e7e | 1031 | |
42aa3418 | 1032 | return 0; |
2b97eabc RP |
1033 | } |
1034 | ||
79fb9387 MB |
1035 | #ifdef CONFIG_DEBUG_FS |
1036 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1037 | { | |
1038 | file->private_data = inode->i_private; | |
1039 | return 0; | |
1040 | } | |
1041 | ||
1042 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1043 | char __user *user_buf, | |
1044 | size_t count, loff_t *ppos) | |
1045 | { | |
1046 | struct snd_soc_dapm_widget *w = file->private_data; | |
1047 | char *buf; | |
1048 | int in, out; | |
1049 | ssize_t ret; | |
1050 | struct snd_soc_dapm_path *p = NULL; | |
1051 | ||
1052 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1053 | if (!buf) | |
1054 | return -ENOMEM; | |
1055 | ||
1056 | in = is_connected_input_ep(w); | |
ce6120cc | 1057 | dapm_clear_walk(w->dapm); |
79fb9387 | 1058 | out = is_connected_output_ep(w); |
ce6120cc | 1059 | dapm_clear_walk(w->dapm); |
79fb9387 | 1060 | |
d033c36a | 1061 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1062 | w->name, w->power ? "On" : "Off", in, out); |
1063 | ||
d033c36a MB |
1064 | if (w->reg >= 0) |
1065 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1066 | " - R%d(0x%x) bit %d", | |
1067 | w->reg, w->reg, w->shift); | |
1068 | ||
1069 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1070 | ||
3eef08ba MB |
1071 | if (w->sname) |
1072 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1073 | w->sname, | |
1074 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1075 | |
1076 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1077 | if (p->connected && !p->connected(w, p->sink)) |
1078 | continue; | |
1079 | ||
79fb9387 MB |
1080 | if (p->connect) |
1081 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1082 | " in %s %s\n", | |
1083 | p->name ? p->name : "static", | |
1084 | p->source->name); | |
1085 | } | |
1086 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1087 | if (p->connected && !p->connected(w, p->sink)) |
1088 | continue; | |
1089 | ||
79fb9387 MB |
1090 | if (p->connect) |
1091 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1092 | " out %s %s\n", | |
1093 | p->name ? p->name : "static", | |
1094 | p->sink->name); | |
1095 | } | |
1096 | ||
1097 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1098 | ||
1099 | kfree(buf); | |
1100 | return ret; | |
1101 | } | |
1102 | ||
1103 | static const struct file_operations dapm_widget_power_fops = { | |
1104 | .open = dapm_widget_power_open_file, | |
1105 | .read = dapm_widget_power_read_file, | |
6038f373 | 1106 | .llseek = default_llseek, |
79fb9387 MB |
1107 | }; |
1108 | ||
ce6120cc | 1109 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1110 | { |
1111 | struct snd_soc_dapm_widget *w; | |
1112 | struct dentry *d; | |
1113 | ||
ce6120cc | 1114 | if (!dapm->debugfs_dapm) |
79fb9387 MB |
1115 | return; |
1116 | ||
ce6120cc | 1117 | list_for_each_entry(w, &dapm->widgets, list) { |
79fb9387 MB |
1118 | if (!w->name) |
1119 | continue; | |
1120 | ||
1121 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1122 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1123 | &dapm_widget_power_fops); |
1124 | if (!d) | |
f7d41ae8 JN |
1125 | dev_warn(w->dapm->dev, |
1126 | "ASoC: Failed to create %s debugfs file\n", | |
1127 | w->name); | |
79fb9387 MB |
1128 | } |
1129 | } | |
1130 | #else | |
ce6120cc | 1131 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1132 | { |
1133 | } | |
1134 | #endif | |
1135 | ||
2b97eabc | 1136 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1137 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1138 | struct snd_kcontrol *kcontrol, int change, |
1139 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1140 | { |
1141 | struct snd_soc_dapm_path *path; | |
1142 | int found = 0; | |
1143 | ||
eff317d0 PU |
1144 | if (widget->id != snd_soc_dapm_mux && |
1145 | widget->id != snd_soc_dapm_value_mux) | |
2b97eabc RP |
1146 | return -ENODEV; |
1147 | ||
3a65577d | 1148 | if (!change) |
2b97eabc RP |
1149 | return 0; |
1150 | ||
1151 | /* find dapm widget path assoc with kcontrol */ | |
ce6120cc | 1152 | list_for_each_entry(path, &widget->dapm->paths, list) { |
2b97eabc RP |
1153 | if (path->kcontrol != kcontrol) |
1154 | continue; | |
1155 | ||
cb01e2b9 | 1156 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1157 | continue; |
1158 | ||
1159 | found = 1; | |
1160 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1161 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1162 | path->connect = 1; /* new connection */ |
1163 | else | |
1164 | path->connect = 0; /* old connection must be powered down */ | |
1165 | } | |
1166 | ||
b91b8fa0 | 1167 | if (found) |
ce6120cc | 1168 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1169 | |
1170 | return 0; | |
1171 | } | |
2b97eabc | 1172 | |
1b075e3f | 1173 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1174 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1175 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1176 | { |
1177 | struct snd_soc_dapm_path *path; | |
1178 | int found = 0; | |
1179 | ||
1b075e3f | 1180 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1181 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1182 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1183 | return -ENODEV; |
1184 | ||
2b97eabc | 1185 | /* find dapm widget path assoc with kcontrol */ |
ce6120cc | 1186 | list_for_each_entry(path, &widget->dapm->paths, list) { |
2b97eabc RP |
1187 | if (path->kcontrol != kcontrol) |
1188 | continue; | |
1189 | ||
1190 | /* found, now check type */ | |
1191 | found = 1; | |
283375ce | 1192 | path->connect = connect; |
2b97eabc RP |
1193 | break; |
1194 | } | |
1195 | ||
b91b8fa0 | 1196 | if (found) |
ce6120cc | 1197 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1198 | |
1199 | return 0; | |
1200 | } | |
2b97eabc RP |
1201 | |
1202 | /* show dapm widget status in sys fs */ | |
1203 | static ssize_t dapm_widget_show(struct device *dev, | |
1204 | struct device_attribute *attr, char *buf) | |
1205 | { | |
f0fba2ad LG |
1206 | struct snd_soc_pcm_runtime *rtd = |
1207 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1208 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1209 | struct snd_soc_dapm_widget *w; |
1210 | int count = 0; | |
1211 | char *state = "not set"; | |
1212 | ||
ce6120cc | 1213 | list_for_each_entry(w, &codec->dapm.widgets, list) { |
2b97eabc RP |
1214 | |
1215 | /* only display widgets that burnm power */ | |
1216 | switch (w->id) { | |
1217 | case snd_soc_dapm_hp: | |
1218 | case snd_soc_dapm_mic: | |
1219 | case snd_soc_dapm_spk: | |
1220 | case snd_soc_dapm_line: | |
1221 | case snd_soc_dapm_micbias: | |
1222 | case snd_soc_dapm_dac: | |
1223 | case snd_soc_dapm_adc: | |
1224 | case snd_soc_dapm_pga: | |
1225 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1226 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1227 | case snd_soc_dapm_supply: |
2b97eabc RP |
1228 | if (w->name) |
1229 | count += sprintf(buf + count, "%s: %s\n", | |
1230 | w->name, w->power ? "On":"Off"); | |
1231 | break; | |
1232 | default: | |
1233 | break; | |
1234 | } | |
1235 | } | |
1236 | ||
ce6120cc | 1237 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1238 | case SND_SOC_BIAS_ON: |
1239 | state = "On"; | |
2b97eabc | 1240 | break; |
0be9898a MB |
1241 | case SND_SOC_BIAS_PREPARE: |
1242 | state = "Prepare"; | |
2b97eabc | 1243 | break; |
0be9898a MB |
1244 | case SND_SOC_BIAS_STANDBY: |
1245 | state = "Standby"; | |
2b97eabc | 1246 | break; |
0be9898a MB |
1247 | case SND_SOC_BIAS_OFF: |
1248 | state = "Off"; | |
2b97eabc RP |
1249 | break; |
1250 | } | |
1251 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1252 | ||
1253 | return count; | |
1254 | } | |
1255 | ||
1256 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1257 | ||
1258 | int snd_soc_dapm_sys_add(struct device *dev) | |
1259 | { | |
12ef193d | 1260 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1261 | } |
1262 | ||
1263 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1264 | { | |
aef90843 | 1265 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1266 | } |
1267 | ||
1268 | /* free all dapm widgets and resources */ | |
ce6120cc | 1269 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1270 | { |
1271 | struct snd_soc_dapm_widget *w, *next_w; | |
1272 | struct snd_soc_dapm_path *p, *next_p; | |
1273 | ||
ce6120cc | 1274 | list_for_each_entry_safe(w, next_w, &dapm->widgets, list) { |
2b97eabc RP |
1275 | list_del(&w->list); |
1276 | kfree(w); | |
1277 | } | |
1278 | ||
ce6120cc | 1279 | list_for_each_entry_safe(p, next_p, &dapm->paths, list) { |
2b97eabc RP |
1280 | list_del(&p->list); |
1281 | kfree(p->long_name); | |
1282 | kfree(p); | |
1283 | } | |
1284 | } | |
1285 | ||
ce6120cc | 1286 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
1649923d | 1287 | const char *pin, int status) |
a5302181 LG |
1288 | { |
1289 | struct snd_soc_dapm_widget *w; | |
1290 | ||
ce6120cc | 1291 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 1292 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
1293 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
1294 | pin, status); | |
a5302181 | 1295 | w->connected = status; |
5b9e87cc MB |
1296 | /* Allow disabling of forced pins */ |
1297 | if (status == 0) | |
1298 | w->force = 0; | |
a5302181 LG |
1299 | return 0; |
1300 | } | |
1301 | } | |
1302 | ||
f7d41ae8 | 1303 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
a5302181 LG |
1304 | return -EINVAL; |
1305 | } | |
1306 | ||
2b97eabc | 1307 | /** |
a5302181 | 1308 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1309 | * @dapm: DAPM context |
2b97eabc RP |
1310 | * |
1311 | * Walks all dapm audio paths and powers widgets according to their | |
1312 | * stream or path usage. | |
1313 | * | |
1314 | * Returns 0 for success. | |
1315 | */ | |
ce6120cc | 1316 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1317 | { |
ce6120cc | 1318 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1319 | } |
a5302181 | 1320 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1321 | |
ce6120cc | 1322 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1323 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1324 | { |
1325 | struct snd_soc_dapm_path *path; | |
1326 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
215edda3 MB |
1327 | const char *sink = route->sink; |
1328 | const char *control = route->control; | |
1329 | const char *source = route->source; | |
2b97eabc RP |
1330 | int ret = 0; |
1331 | ||
1332 | /* find src and dest widgets */ | |
ce6120cc | 1333 | list_for_each_entry(w, &dapm->widgets, list) { |
2b97eabc RP |
1334 | |
1335 | if (!wsink && !(strcmp(w->name, sink))) { | |
1336 | wsink = w; | |
1337 | continue; | |
1338 | } | |
1339 | if (!wsource && !(strcmp(w->name, source))) { | |
1340 | wsource = w; | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | if (wsource == NULL || wsink == NULL) | |
1345 | return -ENODEV; | |
1346 | ||
1347 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1348 | if (!path) | |
1349 | return -ENOMEM; | |
1350 | ||
1351 | path->source = wsource; | |
1352 | path->sink = wsink; | |
215edda3 | 1353 | path->connected = route->connected; |
2b97eabc RP |
1354 | INIT_LIST_HEAD(&path->list); |
1355 | INIT_LIST_HEAD(&path->list_source); | |
1356 | INIT_LIST_HEAD(&path->list_sink); | |
1357 | ||
1358 | /* check for external widgets */ | |
1359 | if (wsink->id == snd_soc_dapm_input) { | |
1360 | if (wsource->id == snd_soc_dapm_micbias || | |
1361 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1362 | wsource->id == snd_soc_dapm_line || |
1363 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1364 | wsink->ext = 1; |
1365 | } | |
1366 | if (wsource->id == snd_soc_dapm_output) { | |
1367 | if (wsink->id == snd_soc_dapm_spk || | |
1368 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1369 | wsink->id == snd_soc_dapm_line || |
1370 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1371 | wsource->ext = 1; |
1372 | } | |
1373 | ||
1374 | /* connect static paths */ | |
1375 | if (control == NULL) { | |
ce6120cc | 1376 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1377 | list_add(&path->list_sink, &wsink->sources); |
1378 | list_add(&path->list_source, &wsource->sinks); | |
1379 | path->connect = 1; | |
1380 | return 0; | |
1381 | } | |
1382 | ||
1383 | /* connect dynamic paths */ | |
1384 | switch(wsink->id) { | |
1385 | case snd_soc_dapm_adc: | |
1386 | case snd_soc_dapm_dac: | |
1387 | case snd_soc_dapm_pga: | |
1388 | case snd_soc_dapm_input: | |
1389 | case snd_soc_dapm_output: | |
1390 | case snd_soc_dapm_micbias: | |
1391 | case snd_soc_dapm_vmid: | |
1392 | case snd_soc_dapm_pre: | |
1393 | case snd_soc_dapm_post: | |
246d0a17 | 1394 | case snd_soc_dapm_supply: |
010ff262 MB |
1395 | case snd_soc_dapm_aif_in: |
1396 | case snd_soc_dapm_aif_out: | |
ce6120cc | 1397 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1398 | list_add(&path->list_sink, &wsink->sources); |
1399 | list_add(&path->list_source, &wsource->sinks); | |
1400 | path->connect = 1; | |
1401 | return 0; | |
1402 | case snd_soc_dapm_mux: | |
74155556 | 1403 | case snd_soc_dapm_value_mux: |
ce6120cc | 1404 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1405 | &wsink->kcontrols[0]); |
1406 | if (ret != 0) | |
1407 | goto err; | |
1408 | break; | |
1409 | case snd_soc_dapm_switch: | |
1410 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1411 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1412 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1413 | if (ret != 0) |
1414 | goto err; | |
1415 | break; | |
1416 | case snd_soc_dapm_hp: | |
1417 | case snd_soc_dapm_mic: | |
1418 | case snd_soc_dapm_line: | |
1419 | case snd_soc_dapm_spk: | |
ce6120cc | 1420 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1421 | list_add(&path->list_sink, &wsink->sources); |
1422 | list_add(&path->list_source, &wsource->sinks); | |
1423 | path->connect = 0; | |
1424 | return 0; | |
1425 | } | |
1426 | return 0; | |
1427 | ||
1428 | err: | |
f7d41ae8 JN |
1429 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1430 | source, control, sink); | |
2b97eabc RP |
1431 | kfree(path); |
1432 | return ret; | |
1433 | } | |
105f1c28 | 1434 | |
105f1c28 MB |
1435 | /** |
1436 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1437 | * @dapm: DAPM context |
105f1c28 MB |
1438 | * @route: audio routes |
1439 | * @num: number of routes | |
1440 | * | |
1441 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1442 | * the widget receiving the audio signal, whilst the source is the sender | |
1443 | * of the audio signal. | |
1444 | * | |
1445 | * Returns 0 for success else error. On error all resources can be freed | |
1446 | * with a call to snd_soc_card_free(). | |
1447 | */ | |
ce6120cc | 1448 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1449 | const struct snd_soc_dapm_route *route, int num) |
1450 | { | |
1451 | int i, ret; | |
1452 | ||
1453 | for (i = 0; i < num; i++) { | |
ce6120cc | 1454 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1455 | if (ret < 0) { |
f7d41ae8 JN |
1456 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1457 | route->source, route->sink); | |
105f1c28 MB |
1458 | return ret; |
1459 | } | |
1460 | route++; | |
1461 | } | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1466 | ||
2b97eabc RP |
1467 | /** |
1468 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1469 | * @dapm: DAPM context |
2b97eabc RP |
1470 | * |
1471 | * Checks the codec for any new dapm widgets and creates them if found. | |
1472 | * | |
1473 | * Returns 0 for success. | |
1474 | */ | |
ce6120cc | 1475 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1476 | { |
1477 | struct snd_soc_dapm_widget *w; | |
1478 | ||
ce6120cc | 1479 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
1480 | { |
1481 | if (w->new) | |
1482 | continue; | |
1483 | ||
1484 | switch(w->id) { | |
1485 | case snd_soc_dapm_switch: | |
1486 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1487 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1488 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1489 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1490 | break; |
1491 | case snd_soc_dapm_mux: | |
2e72f8e3 | 1492 | case snd_soc_dapm_value_mux: |
b75576d7 | 1493 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1494 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1495 | break; |
1496 | case snd_soc_dapm_adc: | |
010ff262 | 1497 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1498 | w->power_check = dapm_adc_check_power; |
1499 | break; | |
2b97eabc | 1500 | case snd_soc_dapm_dac: |
010ff262 | 1501 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1502 | w->power_check = dapm_dac_check_power; |
1503 | break; | |
2b97eabc | 1504 | case snd_soc_dapm_pga: |
b75576d7 | 1505 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1506 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1507 | break; |
1508 | case snd_soc_dapm_input: | |
1509 | case snd_soc_dapm_output: | |
1510 | case snd_soc_dapm_micbias: | |
1511 | case snd_soc_dapm_spk: | |
1512 | case snd_soc_dapm_hp: | |
1513 | case snd_soc_dapm_mic: | |
1514 | case snd_soc_dapm_line: | |
b75576d7 MB |
1515 | w->power_check = dapm_generic_check_power; |
1516 | break; | |
246d0a17 MB |
1517 | case snd_soc_dapm_supply: |
1518 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1519 | case snd_soc_dapm_vmid: |
1520 | case snd_soc_dapm_pre: | |
1521 | case snd_soc_dapm_post: | |
1522 | break; | |
1523 | } | |
1524 | w->new = 1; | |
1525 | } | |
1526 | ||
ce6120cc | 1527 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1528 | return 0; |
1529 | } | |
1530 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1531 | ||
1532 | /** | |
1533 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1534 | * @kcontrol: mixer control | |
ac11a2b3 | 1535 | * @ucontrol: control element information |
2b97eabc RP |
1536 | * |
1537 | * Callback to get the value of a dapm mixer control. | |
1538 | * | |
1539 | * Returns 0 for success. | |
1540 | */ | |
1541 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1542 | struct snd_ctl_elem_value *ucontrol) | |
1543 | { | |
1544 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1545 | struct soc_mixer_control *mc = |
1546 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1547 | unsigned int reg = mc->reg; |
1548 | unsigned int shift = mc->shift; | |
1549 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1550 | int max = mc->max; |
815ecf8d JS |
1551 | unsigned int invert = mc->invert; |
1552 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1553 | |
2b97eabc RP |
1554 | ucontrol->value.integer.value[0] = |
1555 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1556 | if (shift != rshift) | |
1557 | ucontrol->value.integer.value[1] = | |
1558 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1559 | if (invert) { | |
1560 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1561 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1562 | if (shift != rshift) |
1563 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1564 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1565 | } |
1566 | ||
1567 | return 0; | |
1568 | } | |
1569 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1570 | ||
1571 | /** | |
1572 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1573 | * @kcontrol: mixer control | |
ac11a2b3 | 1574 | * @ucontrol: control element information |
2b97eabc RP |
1575 | * |
1576 | * Callback to set the value of a dapm mixer control. | |
1577 | * | |
1578 | * Returns 0 for success. | |
1579 | */ | |
1580 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1581 | struct snd_ctl_elem_value *ucontrol) | |
1582 | { | |
1583 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1584 | struct soc_mixer_control *mc = |
1585 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1586 | unsigned int reg = mc->reg; |
1587 | unsigned int shift = mc->shift; | |
1588 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1589 | int max = mc->max; |
815ecf8d JS |
1590 | unsigned int mask = (1 << fls(max)) - 1; |
1591 | unsigned int invert = mc->invert; | |
46f5822f | 1592 | unsigned int val, val2, val_mask; |
283375ce | 1593 | int connect; |
2b97eabc RP |
1594 | int ret; |
1595 | ||
1596 | val = (ucontrol->value.integer.value[0] & mask); | |
1597 | ||
1598 | if (invert) | |
a7a4ac86 | 1599 | val = max - val; |
2b97eabc RP |
1600 | val_mask = mask << shift; |
1601 | val = val << shift; | |
1602 | if (shift != rshift) { | |
1603 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1604 | if (invert) | |
a7a4ac86 | 1605 | val2 = max - val2; |
2b97eabc RP |
1606 | val_mask |= mask << rshift; |
1607 | val |= val2 << rshift; | |
1608 | } | |
1609 | ||
1610 | mutex_lock(&widget->codec->mutex); | |
1611 | widget->value = val; | |
1612 | ||
283375ce MB |
1613 | if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { |
1614 | if (val) | |
1615 | /* new connection */ | |
1616 | connect = invert ? 0:1; | |
1617 | else | |
1618 | /* old connection must be powered down */ | |
1619 | connect = invert ? 1:0; | |
1620 | ||
1621 | dapm_mixer_update_power(widget, kcontrol, connect); | |
1622 | } | |
1623 | ||
2b97eabc RP |
1624 | if (widget->event) { |
1625 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
9af6d956 LG |
1626 | ret = widget->event(widget, kcontrol, |
1627 | SND_SOC_DAPM_PRE_REG); | |
1628 | if (ret < 0) { | |
1629 | ret = 1; | |
2b97eabc | 1630 | goto out; |
9af6d956 | 1631 | } |
2b97eabc RP |
1632 | } |
1633 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1634 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
9af6d956 LG |
1635 | ret = widget->event(widget, kcontrol, |
1636 | SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1637 | } else |
1638 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1639 | ||
1640 | out: | |
1641 | mutex_unlock(&widget->codec->mutex); | |
1642 | return ret; | |
1643 | } | |
1644 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1645 | ||
1646 | /** | |
1647 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1648 | * @kcontrol: mixer control | |
ac11a2b3 | 1649 | * @ucontrol: control element information |
2b97eabc RP |
1650 | * |
1651 | * Callback to get the value of a dapm enumerated double mixer control. | |
1652 | * | |
1653 | * Returns 0 for success. | |
1654 | */ | |
1655 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1656 | struct snd_ctl_elem_value *ucontrol) | |
1657 | { | |
1658 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1659 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1660 | unsigned int val, bitmask; |
2b97eabc | 1661 | |
f8ba0b7b | 1662 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1663 | ; |
1664 | val = snd_soc_read(widget->codec, e->reg); | |
1665 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1666 | if (e->shift_l != e->shift_r) | |
1667 | ucontrol->value.enumerated.item[1] = | |
1668 | (val >> e->shift_r) & (bitmask - 1); | |
1669 | ||
1670 | return 0; | |
1671 | } | |
1672 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1673 | ||
1674 | /** | |
1675 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1676 | * @kcontrol: mixer control | |
ac11a2b3 | 1677 | * @ucontrol: control element information |
2b97eabc RP |
1678 | * |
1679 | * Callback to set the value of a dapm enumerated double mixer control. | |
1680 | * | |
1681 | * Returns 0 for success. | |
1682 | */ | |
1683 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1684 | struct snd_ctl_elem_value *ucontrol) | |
1685 | { | |
1686 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1687 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1688 | unsigned int val, mux, change; |
46f5822f | 1689 | unsigned int mask, bitmask; |
2b97eabc RP |
1690 | int ret = 0; |
1691 | ||
f8ba0b7b | 1692 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1693 | ; |
f8ba0b7b | 1694 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1695 | return -EINVAL; |
1696 | mux = ucontrol->value.enumerated.item[0]; | |
1697 | val = mux << e->shift_l; | |
1698 | mask = (bitmask - 1) << e->shift_l; | |
1699 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1700 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1701 | return -EINVAL; |
1702 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1703 | mask |= (bitmask - 1) << e->shift_r; | |
1704 | } | |
1705 | ||
1706 | mutex_lock(&widget->codec->mutex); | |
1707 | widget->value = val; | |
3a65577d MB |
1708 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1709 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1710 | |
1711 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1712 | ret = widget->event(widget, | |
1713 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1714 | if (ret < 0) | |
1715 | goto out; | |
1716 | } | |
1717 | ||
1718 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1719 | ||
1720 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1721 | ret = widget->event(widget, | |
1722 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1723 | |
1724 | out: | |
1725 | mutex_unlock(&widget->codec->mutex); | |
1726 | return ret; | |
1727 | } | |
1728 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1729 | ||
d2b247a8 MB |
1730 | /** |
1731 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1732 | * @kcontrol: mixer control | |
1733 | * @ucontrol: control element information | |
1734 | * | |
1735 | * Returns 0 for success. | |
1736 | */ | |
1737 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1738 | struct snd_ctl_elem_value *ucontrol) | |
1739 | { | |
1740 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1741 | ||
1742 | ucontrol->value.enumerated.item[0] = widget->value; | |
1743 | ||
1744 | return 0; | |
1745 | } | |
1746 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1747 | ||
1748 | /** | |
1749 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1750 | * @kcontrol: mixer control | |
1751 | * @ucontrol: control element information | |
1752 | * | |
1753 | * Returns 0 for success. | |
1754 | */ | |
1755 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1756 | struct snd_ctl_elem_value *ucontrol) | |
1757 | { | |
1758 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1759 | struct soc_enum *e = | |
1760 | (struct soc_enum *)kcontrol->private_value; | |
1761 | int change; | |
1762 | int ret = 0; | |
1763 | ||
1764 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1765 | return -EINVAL; | |
1766 | ||
1767 | mutex_lock(&widget->codec->mutex); | |
1768 | ||
1769 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1770 | widget->value = ucontrol->value.enumerated.item[0]; | |
1771 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1772 | ||
1773 | mutex_unlock(&widget->codec->mutex); | |
1774 | return ret; | |
1775 | } | |
1776 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
1777 | ||
2e72f8e3 PU |
1778 | /** |
1779 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
1780 | * callback | |
1781 | * @kcontrol: mixer control | |
1782 | * @ucontrol: control element information | |
1783 | * | |
1784 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
1785 | * | |
1786 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1787 | * used for handling bitfield coded enumeration for example. | |
1788 | * | |
1789 | * Returns 0 for success. | |
1790 | */ | |
1791 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1792 | struct snd_ctl_elem_value *ucontrol) | |
1793 | { | |
1794 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1795 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1796 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1797 | |
1798 | reg_val = snd_soc_read(widget->codec, e->reg); | |
1799 | val = (reg_val >> e->shift_l) & e->mask; | |
1800 | for (mux = 0; mux < e->max; mux++) { | |
1801 | if (val == e->values[mux]) | |
1802 | break; | |
1803 | } | |
1804 | ucontrol->value.enumerated.item[0] = mux; | |
1805 | if (e->shift_l != e->shift_r) { | |
1806 | val = (reg_val >> e->shift_r) & e->mask; | |
1807 | for (mux = 0; mux < e->max; mux++) { | |
1808 | if (val == e->values[mux]) | |
1809 | break; | |
1810 | } | |
1811 | ucontrol->value.enumerated.item[1] = mux; | |
1812 | } | |
1813 | ||
1814 | return 0; | |
1815 | } | |
1816 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
1817 | ||
1818 | /** | |
1819 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
1820 | * callback | |
1821 | * @kcontrol: mixer control | |
1822 | * @ucontrol: control element information | |
1823 | * | |
1824 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
1825 | * | |
1826 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1827 | * used for handling bitfield coded enumeration for example. | |
1828 | * | |
1829 | * Returns 0 for success. | |
1830 | */ | |
1831 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1832 | struct snd_ctl_elem_value *ucontrol) | |
1833 | { | |
1834 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1835 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 1836 | unsigned int val, mux, change; |
46f5822f | 1837 | unsigned int mask; |
2e72f8e3 PU |
1838 | int ret = 0; |
1839 | ||
1840 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1841 | return -EINVAL; | |
1842 | mux = ucontrol->value.enumerated.item[0]; | |
1843 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1844 | mask = e->mask << e->shift_l; | |
1845 | if (e->shift_l != e->shift_r) { | |
1846 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1847 | return -EINVAL; | |
1848 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1849 | mask |= e->mask << e->shift_r; | |
1850 | } | |
1851 | ||
1852 | mutex_lock(&widget->codec->mutex); | |
1853 | widget->value = val; | |
3a65577d MB |
1854 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1855 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1856 | |
1857 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1858 | ret = widget->event(widget, | |
1859 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1860 | if (ret < 0) | |
1861 | goto out; | |
1862 | } | |
1863 | ||
1864 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1865 | ||
1866 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1867 | ret = widget->event(widget, | |
1868 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2e72f8e3 PU |
1869 | |
1870 | out: | |
1871 | mutex_unlock(&widget->codec->mutex); | |
1872 | return ret; | |
1873 | } | |
1874 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
1875 | ||
8b37dbd2 MB |
1876 | /** |
1877 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
1878 | * | |
1879 | * @kcontrol: mixer control | |
1880 | * @uinfo: control element information | |
1881 | * | |
1882 | * Callback to provide information about a pin switch control. | |
1883 | */ | |
1884 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
1885 | struct snd_ctl_elem_info *uinfo) | |
1886 | { | |
1887 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1888 | uinfo->count = 1; | |
1889 | uinfo->value.integer.min = 0; | |
1890 | uinfo->value.integer.max = 1; | |
1891 | ||
1892 | return 0; | |
1893 | } | |
1894 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
1895 | ||
1896 | /** | |
1897 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
1898 | * | |
1899 | * @kcontrol: mixer control | |
1900 | * @ucontrol: Value | |
1901 | */ | |
1902 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
1903 | struct snd_ctl_elem_value *ucontrol) | |
1904 | { | |
1905 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1906 | const char *pin = (const char *)kcontrol->private_value; | |
1907 | ||
1908 | mutex_lock(&codec->mutex); | |
1909 | ||
1910 | ucontrol->value.integer.value[0] = | |
ce6120cc | 1911 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
1912 | |
1913 | mutex_unlock(&codec->mutex); | |
1914 | ||
1915 | return 0; | |
1916 | } | |
1917 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
1918 | ||
1919 | /** | |
1920 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
1921 | * | |
1922 | * @kcontrol: mixer control | |
1923 | * @ucontrol: Value | |
1924 | */ | |
1925 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
1926 | struct snd_ctl_elem_value *ucontrol) | |
1927 | { | |
1928 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1929 | const char *pin = (const char *)kcontrol->private_value; | |
1930 | ||
1931 | mutex_lock(&codec->mutex); | |
1932 | ||
1933 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 1934 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 1935 | else |
ce6120cc | 1936 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 1937 | |
ce6120cc | 1938 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
1939 | |
1940 | mutex_unlock(&codec->mutex); | |
1941 | ||
1942 | return 0; | |
1943 | } | |
1944 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
1945 | ||
2b97eabc RP |
1946 | /** |
1947 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 1948 | * @dapm: DAPM context |
2b97eabc RP |
1949 | * @widget: widget template |
1950 | * | |
1951 | * Creates a new dapm control based upon the template. | |
1952 | * | |
1953 | * Returns 0 for success else error. | |
1954 | */ | |
ce6120cc | 1955 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
1956 | const struct snd_soc_dapm_widget *widget) |
1957 | { | |
1958 | struct snd_soc_dapm_widget *w; | |
1959 | ||
1960 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
1961 | return -ENOMEM; | |
1962 | ||
ce6120cc LG |
1963 | w->dapm = dapm; |
1964 | w->codec = dapm->codec; | |
2b97eabc RP |
1965 | INIT_LIST_HEAD(&w->sources); |
1966 | INIT_LIST_HEAD(&w->sinks); | |
1967 | INIT_LIST_HEAD(&w->list); | |
ce6120cc | 1968 | list_add(&w->list, &dapm->widgets); |
2b97eabc RP |
1969 | |
1970 | /* machine layer set ups unconnected pins and insertions */ | |
1971 | w->connected = 1; | |
1972 | return 0; | |
1973 | } | |
1974 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
1975 | ||
4ba1327a MB |
1976 | /** |
1977 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 1978 | * @dapm: DAPM context |
4ba1327a MB |
1979 | * @widget: widget array |
1980 | * @num: number of widgets | |
1981 | * | |
1982 | * Creates new DAPM controls based upon the templates. | |
1983 | * | |
1984 | * Returns 0 for success else error. | |
1985 | */ | |
ce6120cc | 1986 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
1987 | const struct snd_soc_dapm_widget *widget, |
1988 | int num) | |
1989 | { | |
1990 | int i, ret; | |
1991 | ||
1992 | for (i = 0; i < num; i++) { | |
ce6120cc | 1993 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 1994 | if (ret < 0) { |
f7d41ae8 JN |
1995 | dev_err(dapm->dev, |
1996 | "ASoC: Failed to create DAPM control %s: %d\n", | |
1997 | widget->name, ret); | |
4ba1327a | 1998 | return ret; |
b8b33cb5 | 1999 | } |
4ba1327a MB |
2000 | widget++; |
2001 | } | |
2002 | return 0; | |
2003 | } | |
2004 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2005 | ||
ce6120cc | 2006 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2007 | const char *stream, int event) |
2b97eabc RP |
2008 | { |
2009 | struct snd_soc_dapm_widget *w; | |
2010 | ||
ce6120cc | 2011 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
2012 | { |
2013 | if (!w->sname) | |
2014 | continue; | |
f7d41ae8 JN |
2015 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2016 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2017 | if (strstr(w->sname, stream)) { |
2018 | switch(event) { | |
2019 | case SND_SOC_DAPM_STREAM_START: | |
2020 | w->active = 1; | |
2021 | break; | |
2022 | case SND_SOC_DAPM_STREAM_STOP: | |
2023 | w->active = 0; | |
2024 | break; | |
2025 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2026 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2027 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2028 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2029 | break; | |
2030 | } | |
2031 | } | |
2032 | } | |
2b97eabc | 2033 | |
ce6120cc LG |
2034 | dapm_power_widgets(dapm, event); |
2035 | } | |
2036 | ||
2037 | /** | |
2038 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2039 | * @rtd: PCM runtime data | |
2040 | * @stream: stream name | |
2041 | * @event: stream event | |
2042 | * | |
2043 | * Sends a stream event to the dapm core. The core then makes any | |
2044 | * necessary widget power changes. | |
2045 | * | |
2046 | * Returns 0 for success else error. | |
2047 | */ | |
2048 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2049 | const char *stream, int event) | |
2050 | { | |
2051 | struct snd_soc_codec *codec = rtd->codec; | |
2052 | ||
2053 | if (stream == NULL) | |
2054 | return 0; | |
2055 | ||
2056 | mutex_lock(&codec->mutex); | |
2057 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2058 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2059 | return 0; |
2060 | } | |
2061 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); | |
2062 | ||
2063 | /** | |
a5302181 | 2064 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2065 | * @dapm: DAPM context |
a5302181 | 2066 | * @pin: pin name |
2b97eabc | 2067 | * |
74b8f955 | 2068 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2069 | * a valid audio route and active audio stream. |
2070 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2071 | * do any widget power switching. | |
2b97eabc | 2072 | */ |
ce6120cc | 2073 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2074 | { |
ce6120cc | 2075 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2076 | } |
2077 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2078 | |
da34183e MB |
2079 | /** |
2080 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2081 | * @dapm: DAPM context |
da34183e MB |
2082 | * @pin: pin name |
2083 | * | |
2084 | * Enables input/output pin regardless of any other state. This is | |
2085 | * intended for use with microphone bias supplies used in microphone | |
2086 | * jack detection. | |
2087 | * | |
2088 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2089 | * do any widget power switching. | |
2090 | */ | |
ce6120cc LG |
2091 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2092 | const char *pin) | |
da34183e MB |
2093 | { |
2094 | struct snd_soc_dapm_widget *w; | |
2095 | ||
ce6120cc | 2096 | list_for_each_entry(w, &dapm->widgets, list) { |
da34183e | 2097 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
2098 | dev_dbg(w->dapm->dev, |
2099 | "dapm: force enable pin %s\n", pin); | |
da34183e MB |
2100 | w->connected = 1; |
2101 | w->force = 1; | |
2102 | return 0; | |
2103 | } | |
2104 | } | |
2105 | ||
f7d41ae8 | 2106 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
da34183e MB |
2107 | return -EINVAL; |
2108 | } | |
2109 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2110 | ||
a5302181 LG |
2111 | /** |
2112 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2113 | * @dapm: DAPM context |
a5302181 LG |
2114 | * @pin: pin name |
2115 | * | |
74b8f955 | 2116 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2117 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2118 | * do any widget power switching. | |
2119 | */ | |
ce6120cc LG |
2120 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2121 | const char *pin) | |
a5302181 | 2122 | { |
ce6120cc | 2123 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2124 | } |
a5302181 | 2125 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2126 | |
5817b52a MB |
2127 | /** |
2128 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2129 | * @dapm: DAPM context |
5817b52a MB |
2130 | * @pin: pin name |
2131 | * | |
2132 | * Marks the specified pin as being not connected, disabling it along | |
2133 | * any parent or child widgets. At present this is identical to | |
2134 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2135 | * additional things such as disabling controls which only affect | |
2136 | * paths through the pin. | |
2137 | * | |
2138 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2139 | * do any widget power switching. | |
2140 | */ | |
ce6120cc | 2141 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2142 | { |
ce6120cc | 2143 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2144 | } |
2145 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2146 | ||
eeec12bf | 2147 | /** |
a5302181 | 2148 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2149 | * @dapm: DAPM context |
a5302181 | 2150 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2151 | * |
a5302181 | 2152 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2153 | * |
a5302181 | 2154 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2155 | */ |
ce6120cc LG |
2156 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2157 | const char *pin) | |
eeec12bf GG |
2158 | { |
2159 | struct snd_soc_dapm_widget *w; | |
2160 | ||
ce6120cc | 2161 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 2162 | if (!strcmp(w->name, pin)) |
eeec12bf GG |
2163 | return w->connected; |
2164 | } | |
2165 | ||
2166 | return 0; | |
2167 | } | |
a5302181 | 2168 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2169 | |
1547aba9 MB |
2170 | /** |
2171 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2172 | * @dapm: DAPM context |
1547aba9 MB |
2173 | * @pin: audio signal pin endpoint (or start point) |
2174 | * | |
2175 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2176 | * system is disabled a path between two endpoints flagged as ignoring | |
2177 | * suspend will not be disabled. The path must already be enabled via | |
2178 | * normal means at suspend time, it will not be turned on if it was not | |
2179 | * already enabled. | |
2180 | */ | |
ce6120cc LG |
2181 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2182 | const char *pin) | |
1547aba9 MB |
2183 | { |
2184 | struct snd_soc_dapm_widget *w; | |
2185 | ||
ce6120cc | 2186 | list_for_each_entry(w, &dapm->widgets, list) { |
1547aba9 MB |
2187 | if (!strcmp(w->name, pin)) { |
2188 | w->ignore_suspend = 1; | |
2189 | return 0; | |
2190 | } | |
2191 | } | |
2192 | ||
f7d41ae8 | 2193 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
1547aba9 MB |
2194 | return -EINVAL; |
2195 | } | |
2196 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2197 | ||
2b97eabc RP |
2198 | /** |
2199 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2200 | * @card: SoC device |
2b97eabc RP |
2201 | * |
2202 | * Free all dapm widgets and resources. | |
2203 | */ | |
ce6120cc | 2204 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2205 | { |
ce6120cc LG |
2206 | snd_soc_dapm_sys_remove(dapm->dev); |
2207 | dapm_free_widgets(dapm); | |
2b97eabc RP |
2208 | } |
2209 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2210 | ||
ce6120cc | 2211 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2212 | { |
51737470 MB |
2213 | struct snd_soc_dapm_widget *w; |
2214 | LIST_HEAD(down_list); | |
2215 | int powerdown = 0; | |
2216 | ||
ce6120cc | 2217 | list_for_each_entry(w, &dapm->widgets, list) { |
51737470 MB |
2218 | if (w->power) { |
2219 | dapm_seq_insert(w, &down_list, dapm_down_seq); | |
c2caa4da | 2220 | w->power = 0; |
51737470 MB |
2221 | powerdown = 1; |
2222 | } | |
2223 | } | |
2224 | ||
2225 | /* If there were no widgets to power down we're already in | |
2226 | * standby. | |
2227 | */ | |
2228 | if (powerdown) { | |
ce6120cc LG |
2229 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE); |
2230 | dapm_seq_run(dapm, &down_list, 0, dapm_down_seq); | |
2231 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY); | |
51737470 | 2232 | } |
f0fba2ad LG |
2233 | } |
2234 | ||
2235 | /* | |
2236 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2237 | */ | |
2238 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2239 | { | |
2240 | struct snd_soc_codec *codec; | |
2241 | ||
ce6120cc LG |
2242 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2243 | soc_dapm_shutdown_codec(&codec->dapm); | |
2244 | snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF); | |
2245 | } | |
51737470 MB |
2246 | } |
2247 | ||
2b97eabc | 2248 | /* Module information */ |
d331124d | 2249 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2250 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2251 | MODULE_LICENSE("GPL"); |