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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
a3423b02 LPC |
50 | #define SND_SOC_DAPM_DIR_REVERSE(x) ((x == SND_SOC_DAPM_DIR_IN) ? \ |
51 | SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN) | |
52 | ||
53 | #define snd_soc_dapm_for_each_direction(dir) \ | |
54 | for ((dir) = SND_SOC_DAPM_DIR_IN; (dir) <= SND_SOC_DAPM_DIR_OUT; \ | |
55 | (dir)++) | |
56 | ||
57295073 LPC |
57 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
58 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
59 | const char *control, | |
60 | int (*connected)(struct snd_soc_dapm_widget *source, | |
61 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 62 | |
cc76e7de | 63 | struct snd_soc_dapm_widget * |
57295073 LPC |
64 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
65 | const struct snd_soc_dapm_widget *widget); | |
66 | ||
02aa78ab LG |
67 | struct snd_soc_dapm_widget * |
68 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
69 | const struct snd_soc_dapm_widget *widget); |
70 | ||
2b97eabc RP |
71 | /* dapm power sequences - make this per codec in the future */ |
72 | static int dapm_up_seq[] = { | |
38357ab2 | 73 | [snd_soc_dapm_pre] = 0, |
62ea874a | 74 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 75 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
76 | [snd_soc_dapm_supply] = 2, |
77 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 78 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
79 | [snd_soc_dapm_dai_in] = 4, |
80 | [snd_soc_dapm_dai_out] = 4, | |
81 | [snd_soc_dapm_aif_in] = 4, | |
82 | [snd_soc_dapm_aif_out] = 4, | |
83 | [snd_soc_dapm_mic] = 5, | |
84 | [snd_soc_dapm_mux] = 6, | |
d714f97c | 85 | [snd_soc_dapm_demux] = 6, |
1dd275b6 MB |
86 | [snd_soc_dapm_dac] = 7, |
87 | [snd_soc_dapm_switch] = 8, | |
88 | [snd_soc_dapm_mixer] = 8, | |
89 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
90 | [snd_soc_dapm_pga] = 9, | |
91 | [snd_soc_dapm_adc] = 10, | |
92 | [snd_soc_dapm_out_drv] = 11, | |
93 | [snd_soc_dapm_hp] = 11, | |
94 | [snd_soc_dapm_spk] = 11, | |
95 | [snd_soc_dapm_line] = 11, | |
96 | [snd_soc_dapm_kcontrol] = 12, | |
97 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 98 | }; |
ca9c1aae | 99 | |
2b97eabc | 100 | static int dapm_down_seq[] = { |
38357ab2 | 101 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
102 | [snd_soc_dapm_kcontrol] = 1, |
103 | [snd_soc_dapm_adc] = 2, | |
104 | [snd_soc_dapm_hp] = 3, | |
105 | [snd_soc_dapm_spk] = 3, | |
106 | [snd_soc_dapm_line] = 3, | |
107 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 108 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 109 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 110 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
111 | [snd_soc_dapm_mixer] = 5, |
112 | [snd_soc_dapm_dac] = 6, | |
113 | [snd_soc_dapm_mic] = 7, | |
114 | [snd_soc_dapm_micbias] = 8, | |
115 | [snd_soc_dapm_mux] = 9, | |
d714f97c | 116 | [snd_soc_dapm_demux] = 9, |
010ff262 MB |
117 | [snd_soc_dapm_aif_in] = 10, |
118 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
119 | [snd_soc_dapm_dai_in] = 10, |
120 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 121 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 122 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
123 | [snd_soc_dapm_clock_supply] = 13, |
124 | [snd_soc_dapm_regulator_supply] = 13, | |
125 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
126 | }; |
127 | ||
f9fa2b18 MB |
128 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
129 | { | |
130 | if (dapm->card && dapm->card->instantiated) | |
131 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
132 | } | |
133 | ||
12ef193d | 134 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
135 | { |
136 | if (pop_time) | |
137 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
138 | } | |
139 | ||
fd8d3bc0 | 140 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
141 | { |
142 | va_list args; | |
fd8d3bc0 | 143 | char *buf; |
15e4c72f | 144 | |
fd8d3bc0 JN |
145 | if (!pop_time) |
146 | return; | |
15e4c72f | 147 | |
fd8d3bc0 JN |
148 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
149 | if (buf == NULL) | |
150 | return; | |
15e4c72f | 151 | |
fd8d3bc0 JN |
152 | va_start(args, fmt); |
153 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 154 | dev_info(dev, "%s", buf); |
15e4c72f | 155 | va_end(args); |
fd8d3bc0 JN |
156 | |
157 | kfree(buf); | |
15e4c72f MB |
158 | } |
159 | ||
db432b41 MB |
160 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
161 | { | |
162 | return !list_empty(&w->dirty); | |
163 | } | |
164 | ||
492c0a18 | 165 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 166 | { |
f9fa2b18 MB |
167 | dapm_assert_locked(w->dapm); |
168 | ||
75c1f891 MB |
169 | if (!dapm_dirty_widget(w)) { |
170 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
171 | w->name, reason); | |
db432b41 | 172 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 173 | } |
db432b41 MB |
174 | } |
175 | ||
92a99ea4 | 176 | /* |
a3423b02 LPC |
177 | * Common implementation for dapm_widget_invalidate_input_paths() and |
178 | * dapm_widget_invalidate_output_paths(). The function is inlined since the | |
179 | * combined size of the two specialized functions is only marginally larger then | |
180 | * the size of the generic function and at the same time the fast path of the | |
181 | * specialized functions is significantly smaller than the generic function. | |
92a99ea4 | 182 | */ |
a3423b02 LPC |
183 | static __always_inline void dapm_widget_invalidate_paths( |
184 | struct snd_soc_dapm_widget *w, enum snd_soc_dapm_direction dir) | |
92a99ea4 | 185 | { |
a3423b02 LPC |
186 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
187 | struct snd_soc_dapm_widget *node; | |
92a99ea4 LPC |
188 | struct snd_soc_dapm_path *p; |
189 | LIST_HEAD(list); | |
190 | ||
191 | dapm_assert_locked(w->dapm); | |
192 | ||
a3423b02 | 193 | if (w->endpoints[dir] == -1) |
92a99ea4 LPC |
194 | return; |
195 | ||
92a99ea4 | 196 | list_add_tail(&w->work_list, &list); |
a3423b02 | 197 | w->endpoints[dir] = -1; |
92a99ea4 LPC |
198 | |
199 | list_for_each_entry(w, &list, work_list) { | |
a3423b02 | 200 | snd_soc_dapm_widget_for_each_path(w, dir, p) { |
92a99ea4 LPC |
201 | if (p->is_supply || p->weak || !p->connect) |
202 | continue; | |
a3423b02 LPC |
203 | node = p->node[rdir]; |
204 | if (node->endpoints[dir] != -1) { | |
205 | node->endpoints[dir] = -1; | |
206 | list_add_tail(&node->work_list, &list); | |
92a99ea4 LPC |
207 | } |
208 | } | |
209 | } | |
210 | } | |
211 | ||
a3423b02 LPC |
212 | /* |
213 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of | |
214 | * input paths | |
215 | * @w: The widget for which to invalidate the cached number of input paths | |
216 | * | |
217 | * Resets the cached number of inputs for the specified widget and all widgets | |
218 | * that can be reached via outcoming paths from the widget. | |
219 | * | |
220 | * This function must be called if the number of output paths for a widget might | |
221 | * have changed. E.g. if the source state of a widget changes or a path is added | |
222 | * or activated with the widget as the sink. | |
223 | */ | |
224 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
225 | { | |
226 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_IN); | |
227 | } | |
228 | ||
92a99ea4 LPC |
229 | /* |
230 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
231 | * output paths | |
232 | * @w: The widget for which to invalidate the cached number of output paths | |
233 | * | |
234 | * Resets the cached number of outputs for the specified widget and all widgets | |
235 | * that can be reached via incoming paths from the widget. | |
236 | * | |
237 | * This function must be called if the number of output paths for a widget might | |
238 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
239 | * or activated with the widget as the source. | |
240 | */ | |
241 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
242 | { | |
a3423b02 | 243 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_OUT); |
92a99ea4 LPC |
244 | } |
245 | ||
246 | /* | |
247 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
248 | * for the widgets connected to a path | |
249 | * @p: The path to invalidate | |
250 | * | |
251 | * Resets the cached number of inputs for the sink of the path and the cached | |
252 | * number of outputs for the source of the path. | |
253 | * | |
254 | * This function must be called when a path is added, removed or the connected | |
255 | * state changes. | |
256 | */ | |
257 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
258 | { | |
259 | /* | |
260 | * Weak paths or supply paths do not influence the number of input or | |
261 | * output paths of their neighbors. | |
262 | */ | |
263 | if (p->weak || p->is_supply) | |
264 | return; | |
265 | ||
266 | /* | |
267 | * The number of connected endpoints is the sum of the number of | |
268 | * connected endpoints of all neighbors. If a node with 0 connected | |
269 | * endpoints is either connected or disconnected that sum won't change, | |
270 | * so there is no need to re-check the path. | |
271 | */ | |
a3423b02 | 272 | if (p->source->endpoints[SND_SOC_DAPM_DIR_IN] != 0) |
92a99ea4 | 273 | dapm_widget_invalidate_input_paths(p->sink); |
a3423b02 | 274 | if (p->sink->endpoints[SND_SOC_DAPM_DIR_OUT] != 0) |
92a99ea4 LPC |
275 | dapm_widget_invalidate_output_paths(p->source); |
276 | } | |
277 | ||
8be4da29 | 278 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 279 | { |
e2d32ff6 MB |
280 | struct snd_soc_dapm_widget *w; |
281 | ||
282 | mutex_lock(&card->dapm_mutex); | |
283 | ||
284 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 | 285 | if (w->is_ep) { |
8be4da29 | 286 | dapm_mark_dirty(w, "Rechecking endpoints"); |
a3423b02 | 287 | if (w->is_ep & SND_SOC_DAPM_EP_SINK) |
92a99ea4 | 288 | dapm_widget_invalidate_output_paths(w); |
a3423b02 | 289 | if (w->is_ep & SND_SOC_DAPM_EP_SOURCE) |
92a99ea4 LPC |
290 | dapm_widget_invalidate_input_paths(w); |
291 | } | |
e2d32ff6 MB |
292 | } |
293 | ||
294 | mutex_unlock(&card->dapm_mutex); | |
295 | } | |
8be4da29 | 296 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 297 | |
2b97eabc | 298 | /* create a new dapm widget */ |
88cb4290 | 299 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
300 | const struct snd_soc_dapm_widget *_widget) |
301 | { | |
88cb4290 | 302 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
303 | } |
304 | ||
e84357f7 | 305 | struct dapm_kcontrol_data { |
cf7c1de2 | 306 | unsigned int value; |
57295073 | 307 | struct snd_soc_dapm_widget *widget; |
5106b92f | 308 | struct list_head paths; |
2c75bdf3 | 309 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
310 | }; |
311 | ||
312 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
41d80025 | 313 | struct snd_kcontrol *kcontrol, const char *ctrl_name) |
e84357f7 LPC |
314 | { |
315 | struct dapm_kcontrol_data *data; | |
57295073 | 316 | struct soc_mixer_control *mc; |
561ed680 | 317 | struct soc_enum *e; |
773da9b3 CK |
318 | const char *name; |
319 | int ret; | |
e84357f7 | 320 | |
2c75bdf3 | 321 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 322 | if (!data) |
e84357f7 | 323 | return -ENOMEM; |
e84357f7 | 324 | |
5106b92f | 325 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 326 | |
57295073 LPC |
327 | switch (widget->id) { |
328 | case snd_soc_dapm_switch: | |
329 | case snd_soc_dapm_mixer: | |
330 | case snd_soc_dapm_mixer_named_ctl: | |
331 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
332 | ||
333 | if (mc->autodisable) { | |
334 | struct snd_soc_dapm_widget template; | |
335 | ||
41d80025 | 336 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
773da9b3 CK |
337 | "Autodisable"); |
338 | if (!name) { | |
339 | ret = -ENOMEM; | |
340 | goto err_data; | |
341 | } | |
342 | ||
57295073 LPC |
343 | memset(&template, 0, sizeof(template)); |
344 | template.reg = mc->reg; | |
345 | template.mask = (1 << fls(mc->max)) - 1; | |
346 | template.shift = mc->shift; | |
347 | if (mc->invert) | |
348 | template.off_val = mc->max; | |
349 | else | |
350 | template.off_val = 0; | |
351 | template.on_val = template.off_val; | |
352 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 353 | template.name = name; |
57295073 | 354 | |
2daabd78 LPC |
355 | data->value = template.on_val; |
356 | ||
02aa78ab LG |
357 | data->widget = |
358 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 359 | &template); |
e18077b6 | 360 | kfree(name); |
57295073 | 361 | if (!data->widget) { |
773da9b3 | 362 | ret = -ENOMEM; |
e18077b6 | 363 | goto err_data; |
57295073 LPC |
364 | } |
365 | } | |
366 | break; | |
d714f97c | 367 | case snd_soc_dapm_demux: |
561ed680 CK |
368 | case snd_soc_dapm_mux: |
369 | e = (struct soc_enum *)kcontrol->private_value; | |
370 | ||
371 | if (e->autodisable) { | |
372 | struct snd_soc_dapm_widget template; | |
373 | ||
41d80025 | 374 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
561ed680 CK |
375 | "Autodisable"); |
376 | if (!name) { | |
377 | ret = -ENOMEM; | |
378 | goto err_data; | |
379 | } | |
380 | ||
381 | memset(&template, 0, sizeof(template)); | |
382 | template.reg = e->reg; | |
383 | template.mask = e->mask << e->shift_l; | |
384 | template.shift = e->shift_l; | |
385 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
386 | template.on_val = template.off_val; | |
387 | template.id = snd_soc_dapm_kcontrol; | |
388 | template.name = name; | |
389 | ||
390 | data->value = template.on_val; | |
391 | ||
ffacb48e CK |
392 | data->widget = snd_soc_dapm_new_control_unlocked( |
393 | widget->dapm, &template); | |
e18077b6 | 394 | kfree(name); |
561ed680 CK |
395 | if (!data->widget) { |
396 | ret = -ENOMEM; | |
e18077b6 | 397 | goto err_data; |
561ed680 CK |
398 | } |
399 | ||
400 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
401 | widget, NULL, NULL); | |
402 | } | |
403 | break; | |
57295073 LPC |
404 | default: |
405 | break; | |
406 | } | |
407 | ||
e84357f7 LPC |
408 | kcontrol->private_data = data; |
409 | ||
410 | return 0; | |
773da9b3 | 411 | |
773da9b3 CK |
412 | err_data: |
413 | kfree(data); | |
414 | return ret; | |
e84357f7 LPC |
415 | } |
416 | ||
417 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
418 | { | |
419 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 420 | kfree(data->wlist); |
e84357f7 LPC |
421 | kfree(data); |
422 | } | |
423 | ||
424 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
425 | const struct snd_kcontrol *kcontrol) | |
426 | { | |
427 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
428 | ||
2c75bdf3 | 429 | return data->wlist; |
e84357f7 LPC |
430 | } |
431 | ||
432 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
433 | struct snd_soc_dapm_widget *widget) | |
434 | { | |
435 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
436 | struct snd_soc_dapm_widget_list *new_wlist; |
437 | unsigned int n; | |
e84357f7 | 438 | |
2c75bdf3 LPC |
439 | if (data->wlist) |
440 | n = data->wlist->num_widgets + 1; | |
441 | else | |
442 | n = 1; | |
443 | ||
444 | new_wlist = krealloc(data->wlist, | |
445 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
446 | if (!new_wlist) | |
e84357f7 LPC |
447 | return -ENOMEM; |
448 | ||
2c75bdf3 LPC |
449 | new_wlist->widgets[n - 1] = widget; |
450 | new_wlist->num_widgets = n; | |
e84357f7 | 451 | |
2c75bdf3 | 452 | data->wlist = new_wlist; |
e84357f7 LPC |
453 | |
454 | return 0; | |
455 | } | |
456 | ||
5106b92f LPC |
457 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
458 | struct snd_soc_dapm_path *path) | |
459 | { | |
460 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
461 | ||
462 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
463 | } |
464 | ||
465 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
466 | { | |
467 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
468 | ||
469 | if (!data->widget) | |
470 | return true; | |
471 | ||
472 | return data->widget->power; | |
5106b92f LPC |
473 | } |
474 | ||
475 | static struct list_head *dapm_kcontrol_get_path_list( | |
476 | const struct snd_kcontrol *kcontrol) | |
477 | { | |
478 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
479 | ||
480 | return &data->paths; | |
481 | } | |
482 | ||
483 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
484 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
485 | list_kcontrol) | |
486 | ||
5dc0158a | 487 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
488 | { |
489 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
490 | ||
491 | return data->value; | |
492 | } | |
5dc0158a | 493 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
494 | |
495 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
496 | unsigned int value) | |
497 | { | |
498 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
499 | ||
500 | if (data->value == value) | |
501 | return false; | |
502 | ||
57295073 LPC |
503 | if (data->widget) |
504 | data->widget->on_val = value; | |
505 | ||
cf7c1de2 LPC |
506 | data->value = value; |
507 | ||
508 | return true; | |
509 | } | |
510 | ||
93e39a11 M |
511 | /** |
512 | * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a | |
513 | * kcontrol | |
514 | * @kcontrol: The kcontrol | |
515 | */ | |
516 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( | |
517 | struct snd_kcontrol *kcontrol) | |
518 | { | |
519 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; | |
520 | } | |
521 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); | |
522 | ||
ce0fc93a LPC |
523 | /** |
524 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
525 | * kcontrol | |
526 | * @kcontrol: The kcontrol | |
527 | * | |
528 | * Note: This function must only be used on kcontrols that are known to have | |
529 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
530 | */ | |
531 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
532 | struct snd_kcontrol *kcontrol) | |
533 | { | |
534 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
535 | } | |
536 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
537 | ||
6c120e19 LG |
538 | static void dapm_reset(struct snd_soc_card *card) |
539 | { | |
540 | struct snd_soc_dapm_widget *w; | |
541 | ||
f9fa2b18 MB |
542 | lockdep_assert_held(&card->dapm_mutex); |
543 | ||
6c120e19 LG |
544 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
545 | ||
546 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 547 | w->new_power = w->power; |
6c120e19 | 548 | w->power_checked = false; |
6c120e19 LG |
549 | } |
550 | } | |
551 | ||
94f99c87 LPC |
552 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
553 | { | |
554 | if (!dapm->component) | |
555 | return NULL; | |
556 | return dapm->component->name_prefix; | |
557 | } | |
558 | ||
ce0fc93a | 559 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 560 | unsigned int *value) |
0445bdf4 | 561 | { |
ce0fc93a | 562 | if (!dapm->component) |
e2c330b9 | 563 | return -EIO; |
ce0fc93a | 564 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
565 | } |
566 | ||
ce0fc93a | 567 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 568 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 569 | { |
ce0fc93a | 570 | if (!dapm->component) |
e2c330b9 | 571 | return -EIO; |
fcf6c5ea MB |
572 | return snd_soc_component_update_bits(dapm->component, reg, |
573 | mask, value); | |
49575fb5 LG |
574 | } |
575 | ||
ce0fc93a LPC |
576 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
577 | int reg, unsigned int mask, unsigned int value) | |
578 | { | |
579 | if (!dapm->component) | |
580 | return -EIO; | |
581 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
582 | } | |
583 | ||
eb270e98 MB |
584 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
585 | { | |
e2c330b9 LPC |
586 | if (dapm->component) |
587 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
588 | } |
589 | ||
45a110a1 CK |
590 | static struct snd_soc_dapm_widget * |
591 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
592 | { | |
593 | struct snd_soc_dapm_widget *w = wcache->widget; | |
594 | struct list_head *wlist; | |
595 | const int depth = 2; | |
596 | int i = 0; | |
597 | ||
598 | if (w) { | |
599 | wlist = &w->dapm->card->widgets; | |
600 | ||
601 | list_for_each_entry_from(w, wlist, list) { | |
602 | if (!strcmp(name, w->name)) | |
603 | return w; | |
604 | ||
605 | if (++i == depth) | |
606 | break; | |
607 | } | |
608 | } | |
609 | ||
610 | return NULL; | |
611 | } | |
612 | ||
613 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
614 | struct snd_soc_dapm_widget *w) | |
615 | { | |
616 | wcache->widget = w; | |
617 | } | |
618 | ||
fa880775 LPC |
619 | /** |
620 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
621 | * @dapm: The DAPM context for which to set the level | |
622 | * @level: The level to set | |
623 | * | |
624 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
625 | * callback of DAPM context with the specified level. This will even happen if | |
626 | * the context is already at the same level. Furthermore it will not go through | |
627 | * the normal bias level sequencing, meaning any intermediate states between the | |
628 | * current and the target state will not be entered. | |
629 | * | |
630 | * Note that the change in bias level is only temporary and the next time | |
631 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
632 | * determined by the DAPM core. The function is mainly intended to be used to | |
633 | * used during probe or resume from suspend to power up the device so | |
634 | * initialization can be done, before the DAPM core takes over. | |
635 | */ | |
636 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
637 | enum snd_soc_bias_level level) | |
638 | { | |
639 | int ret = 0; | |
640 | ||
641 | if (dapm->set_bias_level) | |
642 | ret = dapm->set_bias_level(dapm, level); | |
643 | ||
f4bf8d77 LPC |
644 | if (ret == 0) |
645 | dapm->bias_level = level; | |
646 | ||
fa880775 LPC |
647 | return ret; |
648 | } | |
649 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
650 | ||
452c5eaa MB |
651 | /** |
652 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 653 | * @dapm: DAPM context |
452c5eaa MB |
654 | * @level: level to configure |
655 | * | |
656 | * Configure the bias (power) levels for the SoC audio device. | |
657 | * | |
658 | * Returns 0 for success else error. | |
659 | */ | |
ed5a4c47 | 660 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 661 | enum snd_soc_bias_level level) |
452c5eaa | 662 | { |
ed5a4c47 | 663 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
664 | int ret = 0; |
665 | ||
84e90930 MB |
666 | trace_snd_soc_bias_level_start(card, level); |
667 | ||
f0fba2ad | 668 | if (card && card->set_bias_level) |
d4c6005f | 669 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
670 | if (ret != 0) |
671 | goto out; | |
672 | ||
fa880775 LPC |
673 | if (!card || dapm != &card->dapm) |
674 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 675 | |
171ec6b0 MB |
676 | if (ret != 0) |
677 | goto out; | |
678 | ||
679 | if (card && card->set_bias_level_post) | |
d4c6005f | 680 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 681 | out: |
84e90930 MB |
682 | trace_snd_soc_bias_level_done(card, level); |
683 | ||
452c5eaa MB |
684 | return ret; |
685 | } | |
686 | ||
74b8f955 | 687 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 688 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
689 | struct snd_soc_dapm_path *path, const char *control_name, |
690 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 691 | { |
d714f97c | 692 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 693 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 694 | unsigned int val, item; |
2b97eabc | 695 | int i; |
24ff33ac | 696 | |
234c0b8f | 697 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 698 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
699 | val = (val >> e->shift_l) & e->mask; |
700 | item = snd_soc_enum_val_to_item(e, val); | |
701 | } else { | |
24ff33ac DP |
702 | /* since a virtual mux has no backing registers to |
703 | * decide which path to connect, it will try to match | |
704 | * with the first enumeration. This is to ensure | |
705 | * that the default mux choice (the first) will be | |
706 | * correctly powered up during initialization. | |
707 | */ | |
234c0b8f | 708 | item = 0; |
24ff33ac | 709 | } |
2e72f8e3 | 710 | |
9a8d38db | 711 | for (i = 0; i < e->items; i++) { |
2b97eabc | 712 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 713 | path->name = e->texts[i]; |
234c0b8f LPC |
714 | if (i == item) |
715 | path->connect = 1; | |
716 | else | |
717 | path->connect = 0; | |
2b97eabc RP |
718 | return 0; |
719 | } | |
720 | } | |
721 | ||
722 | return -ENODEV; | |
723 | } | |
724 | ||
234c0b8f | 725 | /* set up initial codec paths */ |
5fe5b767 | 726 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
727 | { |
728 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 729 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
730 | unsigned int reg = mc->reg; |
731 | unsigned int shift = mc->shift; | |
732 | unsigned int max = mc->max; | |
733 | unsigned int mask = (1 << fls(max)) - 1; | |
734 | unsigned int invert = mc->invert; | |
735 | unsigned int val; | |
736 | ||
737 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 738 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
739 | val = (val >> shift) & mask; |
740 | if (invert) | |
741 | val = max - val; | |
742 | p->connect = !!val; | |
743 | } else { | |
744 | p->connect = 0; | |
745 | } | |
746 | } | |
747 | ||
74b8f955 | 748 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 749 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
750 | struct snd_soc_dapm_path *path, const char *control_name) |
751 | { | |
752 | int i; | |
753 | ||
754 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
755 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
756 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
757 | path->name = path->sink->kcontrol_news[i].name; | |
758 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
759 | return 0; |
760 | } | |
761 | } | |
762 | return -ENODEV; | |
763 | } | |
764 | ||
af46800b | 765 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 766 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
767 | const struct snd_kcontrol_new *kcontrol_new, |
768 | struct snd_kcontrol **kcontrol) | |
769 | { | |
770 | struct snd_soc_dapm_widget *w; | |
771 | int i; | |
772 | ||
773 | *kcontrol = NULL; | |
774 | ||
775 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
776 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
777 | continue; | |
af46800b SW |
778 | for (i = 0; i < w->num_kcontrols; i++) { |
779 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
780 | if (w->kcontrols) | |
781 | *kcontrol = w->kcontrols[i]; | |
782 | return 1; | |
783 | } | |
784 | } | |
785 | } | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
85762e71 SW |
790 | /* |
791 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
792 | * create it. Either way, add the widget into the control's widget list | |
793 | */ | |
19a2557b | 794 | static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, |
946d92a1 | 795 | int kci) |
2b97eabc | 796 | { |
4b80b8c2 | 797 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 798 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 799 | const char *prefix; |
85762e71 SW |
800 | size_t prefix_len; |
801 | int shared; | |
802 | struct snd_kcontrol *kcontrol; | |
85762e71 | 803 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 804 | char *long_name = NULL; |
85762e71 | 805 | const char *name; |
e5092c96 | 806 | int ret = 0; |
efb7ac3f | 807 | |
94f99c87 | 808 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
809 | if (prefix) |
810 | prefix_len = strlen(prefix) + 1; | |
811 | else | |
812 | prefix_len = 0; | |
813 | ||
85762e71 SW |
814 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
815 | &kcontrol); | |
2b97eabc | 816 | |
85762e71 SW |
817 | if (!kcontrol) { |
818 | if (shared) { | |
819 | wname_in_long_name = false; | |
820 | kcname_in_long_name = true; | |
821 | } else { | |
822 | switch (w->id) { | |
823 | case snd_soc_dapm_switch: | |
824 | case snd_soc_dapm_mixer: | |
19a2557b | 825 | case snd_soc_dapm_pga: |
85762e71 SW |
826 | wname_in_long_name = true; |
827 | kcname_in_long_name = true; | |
828 | break; | |
829 | case snd_soc_dapm_mixer_named_ctl: | |
830 | wname_in_long_name = false; | |
831 | kcname_in_long_name = true; | |
832 | break; | |
d714f97c | 833 | case snd_soc_dapm_demux: |
85762e71 | 834 | case snd_soc_dapm_mux: |
85762e71 SW |
835 | wname_in_long_name = true; |
836 | kcname_in_long_name = false; | |
837 | break; | |
838 | default: | |
85762e71 | 839 | return -EINVAL; |
82cd8764 | 840 | } |
85762e71 SW |
841 | } |
842 | ||
843 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
844 | /* |
845 | * The control will get a prefix from the control | |
846 | * creation process but we're also using the same | |
847 | * prefix for widgets so cut the prefix off the | |
848 | * front of the widget name. | |
ca9c1aae | 849 | */ |
2b581074 | 850 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
851 | w->name + prefix_len, |
852 | w->kcontrol_news[kci].name); | |
e84357f7 | 853 | if (long_name == NULL) |
2b581074 | 854 | return -ENOMEM; |
85762e71 SW |
855 | |
856 | name = long_name; | |
857 | } else if (wname_in_long_name) { | |
858 | long_name = NULL; | |
859 | name = w->name + prefix_len; | |
860 | } else { | |
861 | long_name = NULL; | |
862 | name = w->kcontrol_news[kci].name; | |
863 | } | |
ca9c1aae | 864 | |
e84357f7 | 865 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 866 | prefix); |
e5092c96 DM |
867 | if (!kcontrol) { |
868 | ret = -ENOMEM; | |
869 | goto exit_free; | |
870 | } | |
871 | ||
9356e9d5 | 872 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 | 873 | |
41d80025 | 874 | ret = dapm_kcontrol_data_alloc(w, kcontrol, name); |
e84357f7 LPC |
875 | if (ret) { |
876 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 877 | goto exit_free; |
e84357f7 LPC |
878 | } |
879 | ||
85762e71 SW |
880 | ret = snd_ctl_add(card, kcontrol); |
881 | if (ret < 0) { | |
882 | dev_err(dapm->dev, | |
883 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
884 | w->name, name, ret); | |
e5092c96 | 885 | goto exit_free; |
85762e71 | 886 | } |
85762e71 | 887 | } |
2b97eabc | 888 | |
2c75bdf3 | 889 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
890 | if (ret == 0) |
891 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 892 | |
e5092c96 DM |
893 | exit_free: |
894 | kfree(long_name); | |
ca9c1aae | 895 | |
e5092c96 | 896 | return ret; |
85762e71 | 897 | } |
219b93f5 | 898 | |
85762e71 SW |
899 | /* create new dapm mixer control */ |
900 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
901 | { | |
902 | int i, ret; | |
903 | struct snd_soc_dapm_path *path; | |
561ed680 | 904 | struct dapm_kcontrol_data *data; |
85762e71 SW |
905 | |
906 | /* add kcontrol */ | |
907 | for (i = 0; i < w->num_kcontrols; i++) { | |
908 | /* match name */ | |
e63bfd45 | 909 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
910 | /* mixer/mux paths name must match control name */ |
911 | if (path->name != (char *)w->kcontrol_news[i].name) | |
912 | continue; | |
913 | ||
561ed680 | 914 | if (!w->kcontrols[i]) { |
19a2557b | 915 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
916 | if (ret < 0) |
917 | return ret; | |
2b97eabc | 918 | } |
85762e71 | 919 | |
946d92a1 | 920 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
921 | |
922 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
923 | if (data->widget) | |
924 | snd_soc_dapm_add_path(data->widget->dapm, | |
925 | data->widget, | |
926 | path->source, | |
927 | NULL, NULL); | |
2b97eabc RP |
928 | } |
929 | } | |
85762e71 SW |
930 | |
931 | return 0; | |
2b97eabc RP |
932 | } |
933 | ||
934 | /* create new dapm mux control */ | |
4b80b8c2 | 935 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 936 | { |
4b80b8c2 | 937 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 938 | enum snd_soc_dapm_direction dir; |
85762e71 | 939 | struct snd_soc_dapm_path *path; |
d714f97c | 940 | const char *type; |
af46800b | 941 | int ret; |
2b97eabc | 942 | |
d714f97c LPC |
943 | switch (w->id) { |
944 | case snd_soc_dapm_mux: | |
a3423b02 | 945 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
946 | type = "mux"; |
947 | break; | |
948 | case snd_soc_dapm_demux: | |
a3423b02 | 949 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
950 | type = "demux"; |
951 | break; | |
952 | default: | |
953 | return -EINVAL; | |
954 | } | |
955 | ||
af46800b SW |
956 | if (w->num_kcontrols != 1) { |
957 | dev_err(dapm->dev, | |
d714f97c | 958 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 959 | w->name); |
2b97eabc RP |
960 | return -EINVAL; |
961 | } | |
962 | ||
a3423b02 | 963 | if (list_empty(&w->edges[dir])) { |
d714f97c | 964 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 965 | return -EINVAL; |
af46800b | 966 | } |
ce6120cc | 967 | |
19a2557b | 968 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
969 | if (ret < 0) |
970 | return ret; | |
fad59888 | 971 | |
a3423b02 LPC |
972 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
973 | if (path->name) | |
974 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 975 | } |
2b97eabc | 976 | |
af46800b | 977 | return 0; |
2b97eabc RP |
978 | } |
979 | ||
980 | /* create new dapm volume control */ | |
4b80b8c2 | 981 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 982 | { |
19a2557b JK |
983 | int i, ret; |
984 | ||
985 | for (i = 0; i < w->num_kcontrols; i++) { | |
986 | ret = dapm_create_or_share_kcontrol(w, i); | |
987 | if (ret < 0) | |
988 | return ret; | |
989 | } | |
2b97eabc | 990 | |
a6c65736 | 991 | return 0; |
2b97eabc RP |
992 | } |
993 | ||
c6615082 NO |
994 | /* create new dapm dai link control */ |
995 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
996 | { | |
997 | int i, ret; | |
998 | struct snd_kcontrol *kcontrol; | |
999 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1000 | struct snd_card *card = dapm->card->snd_card; | |
1001 | ||
1002 | /* create control for links with > 1 config */ | |
1003 | if (w->num_params <= 1) | |
1004 | return 0; | |
1005 | ||
1006 | /* add kcontrol */ | |
1007 | for (i = 0; i < w->num_kcontrols; i++) { | |
1008 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1009 | w->name, NULL); | |
1010 | ret = snd_ctl_add(card, kcontrol); | |
1011 | if (ret < 0) { | |
1012 | dev_err(dapm->dev, | |
1013 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1014 | w->name, w->kcontrol_news[i].name, ret); | |
1015 | return ret; | |
1016 | } | |
1017 | kcontrol->private_data = w; | |
1018 | w->kcontrols[i] = kcontrol; | |
1019 | } | |
1020 | ||
1021 | return 0; | |
1022 | } | |
1023 | ||
9949788b MB |
1024 | /* We implement power down on suspend by checking the power state of |
1025 | * the ALSA card - when we are suspending the ALSA state for the card | |
1026 | * is set to D3. | |
1027 | */ | |
1028 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1029 | { | |
12ea2c78 | 1030 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1031 | |
f0fba2ad | 1032 | switch (level) { |
9949788b MB |
1033 | case SNDRV_CTL_POWER_D3hot: |
1034 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1035 | if (widget->ignore_suspend) |
30a6a1a4 | 1036 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1037 | widget->name); |
1547aba9 | 1038 | return widget->ignore_suspend; |
9949788b MB |
1039 | default: |
1040 | return 1; | |
1041 | } | |
1042 | } | |
1043 | ||
1ce43acf LPC |
1044 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1045 | struct list_head *widgets) | |
ec2e3031 | 1046 | { |
1ce43acf LPC |
1047 | struct snd_soc_dapm_widget *w; |
1048 | struct list_head *it; | |
1049 | unsigned int size = 0; | |
1050 | unsigned int i = 0; | |
ec2e3031 | 1051 | |
1ce43acf LPC |
1052 | list_for_each(it, widgets) |
1053 | size++; | |
ec2e3031 | 1054 | |
1ce43acf LPC |
1055 | *list = kzalloc(sizeof(**list) + size * sizeof(*w), GFP_KERNEL); |
1056 | if (*list == NULL) | |
ec2e3031 | 1057 | return -ENOMEM; |
ec2e3031 | 1058 | |
1ce43acf LPC |
1059 | list_for_each_entry(w, widgets, work_list) |
1060 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1061 | |
1ce43acf LPC |
1062 | (*list)->num_widgets = i; |
1063 | ||
1064 | return 0; | |
ec2e3031 LG |
1065 | } |
1066 | ||
2b97eabc | 1067 | /* |
a3423b02 LPC |
1068 | * Common implementation for is_connected_output_ep() and |
1069 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1070 | * the two specialized functions is only marginally larger then the size of the | |
1071 | * generic function and at the same time the fast path of the specialized | |
1072 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1073 | */ |
a3423b02 LPC |
1074 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1075 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
1076 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *)) | |
2b97eabc | 1077 | { |
a3423b02 | 1078 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1079 | struct snd_soc_dapm_path *path; |
1080 | int con = 0; | |
1081 | ||
a3423b02 LPC |
1082 | if (widget->endpoints[dir] >= 0) |
1083 | return widget->endpoints[dir]; | |
024dc078 | 1084 | |
de02d078 MB |
1085 | DAPM_UPDATE_STAT(widget, path_checks); |
1086 | ||
1ce43acf LPC |
1087 | /* do we need to add this widget to the list ? */ |
1088 | if (list) | |
1089 | list_add_tail(&widget->work_list, list); | |
1090 | ||
a3423b02 LPC |
1091 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1092 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1093 | return widget->endpoints[dir]; | |
2b97eabc RP |
1094 | } |
1095 | ||
a3423b02 | 1096 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1097 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1098 | ||
c1862c8b | 1099 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1100 | continue; |
1101 | ||
8af294b4 MB |
1102 | if (path->walking) |
1103 | return 1; | |
1104 | ||
a3423b02 | 1105 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1106 | |
7ddd4cd5 | 1107 | if (path->connect) { |
8af294b4 | 1108 | path->walking = 1; |
a3423b02 | 1109 | con += fn(path->node[dir], list); |
8af294b4 | 1110 | path->walking = 0; |
2b97eabc RP |
1111 | } |
1112 | } | |
1113 | ||
a3423b02 | 1114 | widget->endpoints[dir] = con; |
024dc078 | 1115 | |
2b97eabc RP |
1116 | return con; |
1117 | } | |
1118 | ||
a3423b02 LPC |
1119 | /* |
1120 | * Recursively check for a completed path to an active or physically connected | |
1121 | * output widget. Returns number of complete paths. | |
1122 | */ | |
1123 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
1124 | struct list_head *list) | |
1125 | { | |
1126 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
1127 | is_connected_output_ep); | |
1128 | } | |
1129 | ||
2b97eabc RP |
1130 | /* |
1131 | * Recursively check for a completed path to an active or physically connected | |
1132 | * input widget. Returns number of complete paths. | |
1133 | */ | |
ec2e3031 | 1134 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1ce43acf | 1135 | struct list_head *list) |
2b97eabc | 1136 | { |
a3423b02 LPC |
1137 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
1138 | is_connected_input_ep); | |
2b97eabc RP |
1139 | } |
1140 | ||
ec2e3031 LG |
1141 | /** |
1142 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1143 | * @dai: the soc DAI. | |
1144 | * @stream: stream direction. | |
1145 | * @list: list of active widgets for this stream. | |
1146 | * | |
1147 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1148 | * the initial stream specified by name. This takes into account | |
1149 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1150 | * | |
1151 | * Returns the number of valid paths or negative error. | |
1152 | */ | |
1153 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1154 | struct snd_soc_dapm_widget_list **list) | |
1155 | { | |
313665b9 | 1156 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1157 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1158 | LIST_HEAD(widgets); |
ec2e3031 | 1159 | int paths; |
1ce43acf | 1160 | int ret; |
ec2e3031 LG |
1161 | |
1162 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1163 | |
1164 | /* | |
1165 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1166 | * to reset the cached number of inputs and outputs. | |
1167 | */ | |
1168 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 LPC |
1169 | w->endpoints[SND_SOC_DAPM_DIR_IN] = -1; |
1170 | w->endpoints[SND_SOC_DAPM_DIR_OUT] = -1; | |
92a99ea4 | 1171 | } |
ec2e3031 | 1172 | |
130897ac | 1173 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1ce43acf | 1174 | paths = is_connected_output_ep(dai->playback_widget, &widgets); |
130897ac | 1175 | else |
1ce43acf LPC |
1176 | paths = is_connected_input_ep(dai->capture_widget, &widgets); |
1177 | ||
1178 | /* Drop starting point */ | |
1179 | list_del(widgets.next); | |
1180 | ||
1181 | ret = dapm_widget_list_create(list, &widgets); | |
1182 | if (ret) | |
30abbe77 | 1183 | paths = ret; |
ec2e3031 LG |
1184 | |
1185 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1186 | mutex_unlock(&card->dapm_mutex); |
1187 | ||
1188 | return paths; | |
1189 | } | |
1190 | ||
62ea874a MB |
1191 | /* |
1192 | * Handler for regulator supply widget. | |
1193 | */ | |
1194 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1195 | struct snd_kcontrol *kcontrol, int event) | |
1196 | { | |
c05b84d1 MB |
1197 | int ret; |
1198 | ||
eb270e98 MB |
1199 | soc_dapm_async_complete(w->dapm); |
1200 | ||
c05b84d1 | 1201 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1202 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1203 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1204 | if (ret != 0) |
1205 | dev_warn(w->dapm->dev, | |
30686c35 | 1206 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1207 | w->name, ret); |
1208 | } | |
1209 | ||
a3cc056b | 1210 | return regulator_enable(w->regulator); |
c05b84d1 | 1211 | } else { |
de9ba98b | 1212 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1213 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1214 | if (ret != 0) |
1215 | dev_warn(w->dapm->dev, | |
30686c35 | 1216 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1217 | w->name, ret); |
1218 | } | |
1219 | ||
a3cc056b | 1220 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1221 | } |
62ea874a MB |
1222 | } |
1223 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1224 | ||
d7e7eb91 OL |
1225 | /* |
1226 | * Handler for clock supply widget. | |
1227 | */ | |
1228 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1229 | struct snd_kcontrol *kcontrol, int event) | |
1230 | { | |
1231 | if (!w->clk) | |
1232 | return -EIO; | |
1233 | ||
eb270e98 MB |
1234 | soc_dapm_async_complete(w->dapm); |
1235 | ||
ec02995a | 1236 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1237 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1238 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1239 | } else { |
37c1b927 | 1240 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1241 | return 0; |
1242 | } | |
ec02995a | 1243 | #endif |
98b3cf12 | 1244 | return 0; |
d7e7eb91 OL |
1245 | } |
1246 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1247 | ||
d805002b MB |
1248 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1249 | { | |
9b8a83b2 MB |
1250 | if (w->power_checked) |
1251 | return w->new_power; | |
1252 | ||
d805002b | 1253 | if (w->force) |
9b8a83b2 | 1254 | w->new_power = 1; |
d805002b | 1255 | else |
9b8a83b2 MB |
1256 | w->new_power = w->power_check(w); |
1257 | ||
1258 | w->power_checked = true; | |
1259 | ||
1260 | return w->new_power; | |
d805002b MB |
1261 | } |
1262 | ||
cd0f2d47 MB |
1263 | /* Generic check to see if a widget should be powered. |
1264 | */ | |
1265 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1266 | { | |
1267 | int in, out; | |
1268 | ||
de02d078 MB |
1269 | DAPM_UPDATE_STAT(w, power_checks); |
1270 | ||
ec2e3031 | 1271 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1272 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1273 | return out != 0 && in != 0; |
1274 | } | |
1275 | ||
246d0a17 MB |
1276 | /* Check to see if a power supply is needed */ |
1277 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1278 | { | |
1279 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1280 | |
de02d078 MB |
1281 | DAPM_UPDATE_STAT(w, power_checks); |
1282 | ||
246d0a17 | 1283 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1284 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1285 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1286 | ||
bf3a9e13 MB |
1287 | if (path->weak) |
1288 | continue; | |
1289 | ||
215edda3 MB |
1290 | if (path->connected && |
1291 | !path->connected(path->source, path->sink)) | |
1292 | continue; | |
1293 | ||
f68d7e16 MB |
1294 | if (dapm_widget_power_check(path->sink)) |
1295 | return 1; | |
246d0a17 MB |
1296 | } |
1297 | ||
f68d7e16 | 1298 | return 0; |
246d0a17 MB |
1299 | } |
1300 | ||
35c64bca MB |
1301 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1302 | { | |
20bb0184 | 1303 | return w->connected; |
35c64bca MB |
1304 | } |
1305 | ||
38357ab2 MB |
1306 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1307 | struct snd_soc_dapm_widget *b, | |
828a842f | 1308 | bool power_up) |
42aa3418 | 1309 | { |
828a842f MB |
1310 | int *sort; |
1311 | ||
1312 | if (power_up) | |
1313 | sort = dapm_up_seq; | |
1314 | else | |
1315 | sort = dapm_down_seq; | |
1316 | ||
38357ab2 MB |
1317 | if (sort[a->id] != sort[b->id]) |
1318 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1319 | if (a->subseq != b->subseq) { |
1320 | if (power_up) | |
1321 | return a->subseq - b->subseq; | |
1322 | else | |
1323 | return b->subseq - a->subseq; | |
1324 | } | |
b22ead2a MB |
1325 | if (a->reg != b->reg) |
1326 | return a->reg - b->reg; | |
84dab567 MB |
1327 | if (a->dapm != b->dapm) |
1328 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1329 | |
38357ab2 MB |
1330 | return 0; |
1331 | } | |
42aa3418 | 1332 | |
38357ab2 MB |
1333 | /* Insert a widget in order into a DAPM power sequence. */ |
1334 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1335 | struct list_head *list, | |
828a842f | 1336 | bool power_up) |
38357ab2 MB |
1337 | { |
1338 | struct snd_soc_dapm_widget *w; | |
1339 | ||
1340 | list_for_each_entry(w, list, power_list) | |
828a842f | 1341 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1342 | list_add_tail(&new_widget->power_list, &w->power_list); |
1343 | return; | |
1344 | } | |
1345 | ||
1346 | list_add_tail(&new_widget->power_list, list); | |
1347 | } | |
1348 | ||
95dd5cd6 | 1349 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1350 | struct snd_soc_dapm_widget *w, int event) |
1351 | { | |
68f89ad8 MB |
1352 | const char *ev_name; |
1353 | int power, ret; | |
1354 | ||
1355 | switch (event) { | |
1356 | case SND_SOC_DAPM_PRE_PMU: | |
1357 | ev_name = "PRE_PMU"; | |
1358 | power = 1; | |
1359 | break; | |
1360 | case SND_SOC_DAPM_POST_PMU: | |
1361 | ev_name = "POST_PMU"; | |
1362 | power = 1; | |
1363 | break; | |
1364 | case SND_SOC_DAPM_PRE_PMD: | |
1365 | ev_name = "PRE_PMD"; | |
1366 | power = 0; | |
1367 | break; | |
1368 | case SND_SOC_DAPM_POST_PMD: | |
1369 | ev_name = "POST_PMD"; | |
1370 | power = 0; | |
1371 | break; | |
80114129 MB |
1372 | case SND_SOC_DAPM_WILL_PMU: |
1373 | ev_name = "WILL_PMU"; | |
1374 | power = 1; | |
1375 | break; | |
1376 | case SND_SOC_DAPM_WILL_PMD: | |
1377 | ev_name = "WILL_PMD"; | |
1378 | power = 0; | |
1379 | break; | |
68f89ad8 | 1380 | default: |
a6ed0608 | 1381 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1382 | return; |
1383 | } | |
1384 | ||
39eb5fd1 | 1385 | if (w->new_power != power) |
68f89ad8 MB |
1386 | return; |
1387 | ||
1388 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1389 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1390 | w->name, ev_name); |
eb270e98 | 1391 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1392 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1393 | ret = w->event(w, NULL, event); |
84e90930 | 1394 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1395 | if (ret < 0) |
95dd5cd6 | 1396 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1397 | ev_name, w->name, ret); |
1398 | } | |
1399 | } | |
1400 | ||
b22ead2a | 1401 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1402 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1403 | struct list_head *pending) |
163cac06 | 1404 | { |
ce0fc93a | 1405 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1406 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1407 | int reg; |
b22ead2a MB |
1408 | unsigned int value = 0; |
1409 | unsigned int mask = 0; | |
b22ead2a | 1410 | |
ce0fc93a LPC |
1411 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1412 | reg = w->reg; | |
1413 | dapm = w->dapm; | |
b22ead2a MB |
1414 | |
1415 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1416 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1417 | w->power = w->new_power; |
b22ead2a | 1418 | |
de9ba98b LPC |
1419 | mask |= w->mask << w->shift; |
1420 | if (w->power) | |
1421 | value |= w->on_val << w->shift; | |
b22ead2a | 1422 | else |
de9ba98b | 1423 | value |= w->off_val << w->shift; |
b22ead2a | 1424 | |
ce0fc93a | 1425 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1426 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1427 | w->name, reg, value, mask); | |
81628103 | 1428 | |
68f89ad8 | 1429 | /* Check for events */ |
95dd5cd6 LPC |
1430 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1431 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1432 | } |
1433 | ||
1434 | if (reg >= 0) { | |
29376bc7 MB |
1435 | /* Any widget will do, they should all be updating the |
1436 | * same register. | |
1437 | */ | |
29376bc7 | 1438 | |
ce0fc93a | 1439 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1440 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1441 | value, mask, reg, card->pop_time); |
1442 | pop_wait(card->pop_time); | |
ce0fc93a | 1443 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1444 | } |
1445 | ||
81628103 | 1446 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1447 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1448 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1449 | } |
b22ead2a | 1450 | } |
42aa3418 | 1451 | |
b22ead2a MB |
1452 | /* Apply a DAPM power sequence. |
1453 | * | |
1454 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1455 | * order to minimise the number of writes to the device required | |
1456 | * multiple widgets will be updated in a single write where possible. | |
1457 | * Currently anything that requires more than a single write is not | |
1458 | * handled. | |
1459 | */ | |
95dd5cd6 LPC |
1460 | static void dapm_seq_run(struct snd_soc_card *card, |
1461 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1462 | { |
1463 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1464 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1465 | LIST_HEAD(pending); |
1466 | int cur_sort = -1; | |
20e4859d | 1467 | int cur_subseq = -1; |
b22ead2a | 1468 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1469 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1470 | int ret, i; |
828a842f MB |
1471 | int *sort; |
1472 | ||
1473 | if (power_up) | |
1474 | sort = dapm_up_seq; | |
1475 | else | |
1476 | sort = dapm_down_seq; | |
163cac06 | 1477 | |
b22ead2a MB |
1478 | list_for_each_entry_safe(w, n, list, power_list) { |
1479 | ret = 0; | |
1480 | ||
1481 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1482 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1483 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1484 | if (!list_empty(&pending)) |
95dd5cd6 | 1485 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1486 | |
474b62d6 MB |
1487 | if (cur_dapm && cur_dapm->seq_notifier) { |
1488 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1489 | if (sort[i] == cur_sort) | |
1490 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1491 | i, |
1492 | cur_subseq); | |
474b62d6 MB |
1493 | } |
1494 | ||
eb270e98 MB |
1495 | if (cur_dapm && w->dapm != cur_dapm) |
1496 | soc_dapm_async_complete(cur_dapm); | |
1497 | ||
b22ead2a MB |
1498 | INIT_LIST_HEAD(&pending); |
1499 | cur_sort = -1; | |
b0b3e6f8 | 1500 | cur_subseq = INT_MIN; |
b22ead2a | 1501 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1502 | cur_dapm = NULL; |
b22ead2a MB |
1503 | } |
1504 | ||
163cac06 MB |
1505 | switch (w->id) { |
1506 | case snd_soc_dapm_pre: | |
1507 | if (!w->event) | |
b22ead2a MB |
1508 | list_for_each_entry_safe_continue(w, n, list, |
1509 | power_list); | |
163cac06 | 1510 | |
b22ead2a | 1511 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1512 | ret = w->event(w, |
1513 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1514 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1515 | ret = w->event(w, |
1516 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1517 | break; |
1518 | ||
1519 | case snd_soc_dapm_post: | |
1520 | if (!w->event) | |
b22ead2a MB |
1521 | list_for_each_entry_safe_continue(w, n, list, |
1522 | power_list); | |
163cac06 | 1523 | |
b22ead2a | 1524 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1525 | ret = w->event(w, |
1526 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1527 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1528 | ret = w->event(w, |
1529 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1530 | break; |
1531 | ||
b22ead2a | 1532 | default: |
81628103 MB |
1533 | /* Queue it up for application */ |
1534 | cur_sort = sort[w->id]; | |
20e4859d | 1535 | cur_subseq = w->subseq; |
81628103 | 1536 | cur_reg = w->reg; |
7be31be8 | 1537 | cur_dapm = w->dapm; |
81628103 MB |
1538 | list_move(&w->power_list, &pending); |
1539 | break; | |
163cac06 | 1540 | } |
b22ead2a MB |
1541 | |
1542 | if (ret < 0) | |
f7d41ae8 | 1543 | dev_err(w->dapm->dev, |
30a6a1a4 | 1544 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1545 | } |
b22ead2a MB |
1546 | |
1547 | if (!list_empty(&pending)) | |
95dd5cd6 | 1548 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1549 | |
1550 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1551 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1552 | if (sort[i] == cur_sort) | |
1553 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1554 | i, cur_subseq); |
474b62d6 | 1555 | } |
eb270e98 MB |
1556 | |
1557 | list_for_each_entry(d, &card->dapm_list, list) { | |
1558 | soc_dapm_async_complete(d); | |
1559 | } | |
42aa3418 MB |
1560 | } |
1561 | ||
95dd5cd6 | 1562 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1563 | { |
95dd5cd6 | 1564 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1565 | struct snd_soc_dapm_widget_list *wlist; |
1566 | struct snd_soc_dapm_widget *w = NULL; | |
1567 | unsigned int wi; | |
97404f2e MB |
1568 | int ret; |
1569 | ||
57295073 | 1570 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1571 | return; |
1572 | ||
e84357f7 | 1573 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1574 | |
ce6cfaf1 LPC |
1575 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1576 | w = wlist->widgets[wi]; | |
1577 | ||
1578 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1579 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1580 | if (ret != 0) | |
95dd5cd6 | 1581 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1582 | w->name, ret); |
1583 | } | |
97404f2e MB |
1584 | } |
1585 | ||
ce6cfaf1 LPC |
1586 | if (!w) |
1587 | return; | |
1588 | ||
ce0fc93a LPC |
1589 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1590 | update->val); | |
97404f2e | 1591 | if (ret < 0) |
95dd5cd6 | 1592 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1593 | w->name, ret); |
97404f2e | 1594 | |
ce6cfaf1 LPC |
1595 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1596 | w = wlist->widgets[wi]; | |
1597 | ||
1598 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1599 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1600 | if (ret != 0) | |
95dd5cd6 | 1601 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1602 | w->name, ret); |
1603 | } | |
97404f2e MB |
1604 | } |
1605 | } | |
1606 | ||
9d0624a7 MB |
1607 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1608 | * they're changing state. | |
1609 | */ | |
1610 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1611 | { | |
1612 | struct snd_soc_dapm_context *d = data; | |
1613 | int ret; | |
1614 | ||
56fba41f MB |
1615 | /* If we're off and we're not supposed to be go into STANDBY */ |
1616 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1617 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1618 | if (d->dev) |
1619 | pm_runtime_get_sync(d->dev); | |
1620 | ||
9d0624a7 MB |
1621 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1622 | if (ret != 0) | |
1623 | dev_err(d->dev, | |
30a6a1a4 | 1624 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1625 | } |
1626 | ||
ce85a4d7 LPC |
1627 | /* Prepare for a transition to ON or away from ON */ |
1628 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1629 | d->bias_level != SND_SOC_BIAS_ON) || | |
1630 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1631 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1632 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1633 | if (ret != 0) | |
1634 | dev_err(d->dev, | |
30a6a1a4 | 1635 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1636 | } |
1637 | } | |
1638 | ||
1639 | /* Async callback run prior to DAPM sequences - brings to their final | |
1640 | * state. | |
1641 | */ | |
1642 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1643 | { | |
1644 | struct snd_soc_dapm_context *d = data; | |
1645 | int ret; | |
1646 | ||
1647 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1648 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1649 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1650 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1651 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1652 | if (ret != 0) | |
30a6a1a4 | 1653 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1654 | ret); |
1655 | } | |
97404f2e | 1656 | |
9d0624a7 | 1657 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1658 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1659 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1660 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1661 | if (ret != 0) | |
30a6a1a4 LG |
1662 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1663 | ret); | |
f1aac484 MB |
1664 | |
1665 | if (d->dev) | |
fb644e9c | 1666 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1667 | } |
1668 | ||
1669 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1670 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1671 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1672 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1673 | if (ret != 0) | |
30a6a1a4 | 1674 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1675 | ret); |
1676 | } | |
1677 | } | |
97404f2e | 1678 | |
fe4fda5d MB |
1679 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1680 | bool power, bool connect) | |
1681 | { | |
1682 | /* If a connection is being made or broken then that update | |
1683 | * will have marked the peer dirty, otherwise the widgets are | |
1684 | * not connected and this update has no impact. */ | |
1685 | if (!connect) | |
1686 | return; | |
1687 | ||
1688 | /* If the peer is already in the state we're moving to then we | |
1689 | * won't have an impact on it. */ | |
1690 | if (power != peer->power) | |
75c1f891 | 1691 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1692 | } |
1693 | ||
05623c43 MB |
1694 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1695 | struct list_head *up_list, | |
1696 | struct list_head *down_list) | |
1697 | { | |
db432b41 MB |
1698 | struct snd_soc_dapm_path *path; |
1699 | ||
05623c43 MB |
1700 | if (w->power == power) |
1701 | return; | |
1702 | ||
1703 | trace_snd_soc_dapm_widget_power(w, power); | |
1704 | ||
db432b41 | 1705 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1706 | * also. |
db432b41 | 1707 | */ |
e63bfd45 | 1708 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1709 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1710 | ||
6dd98b0a LPC |
1711 | /* Supplies can't affect their outputs, only their inputs */ |
1712 | if (!w->is_supply) { | |
e63bfd45 | 1713 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1714 | dapm_widget_set_peer_power(path->sink, power, |
1715 | path->connect); | |
db432b41 MB |
1716 | } |
1717 | ||
05623c43 MB |
1718 | if (power) |
1719 | dapm_seq_insert(w, up_list, true); | |
1720 | else | |
1721 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1722 | } |
1723 | ||
7c81beb0 MB |
1724 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1725 | struct list_head *up_list, | |
1726 | struct list_head *down_list) | |
1727 | { | |
7c81beb0 MB |
1728 | int power; |
1729 | ||
1730 | switch (w->id) { | |
1731 | case snd_soc_dapm_pre: | |
1732 | dapm_seq_insert(w, down_list, false); | |
1733 | break; | |
1734 | case snd_soc_dapm_post: | |
1735 | dapm_seq_insert(w, up_list, true); | |
1736 | break; | |
1737 | ||
1738 | default: | |
d805002b | 1739 | power = dapm_widget_power_check(w); |
7c81beb0 | 1740 | |
05623c43 | 1741 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1742 | break; |
1743 | } | |
1744 | } | |
1745 | ||
86dbf2ac LPC |
1746 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1747 | { | |
1748 | if (dapm->idle_bias_off) | |
1749 | return true; | |
1750 | ||
1751 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1752 | case SNDRV_CTL_POWER_D3hot: | |
1753 | case SNDRV_CTL_POWER_D3cold: | |
1754 | return dapm->suspend_bias_off; | |
1755 | default: | |
1756 | break; | |
1757 | } | |
1758 | ||
1759 | return false; | |
1760 | } | |
1761 | ||
2b97eabc RP |
1762 | /* |
1763 | * Scan each dapm widget for complete audio path. | |
1764 | * A complete path is a route that has valid endpoints i.e.:- | |
1765 | * | |
1766 | * o DAC to output pin. | |
1767 | * o Input Pin to ADC. | |
1768 | * o Input pin to Output pin (bypass, sidetone) | |
1769 | * o DAC to ADC (loopback). | |
1770 | */ | |
95dd5cd6 | 1771 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1772 | { |
1773 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1774 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1775 | LIST_HEAD(up_list); |
1776 | LIST_HEAD(down_list); | |
2955b47d | 1777 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1778 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1779 | |
f9fa2b18 MB |
1780 | lockdep_assert_held(&card->dapm_mutex); |
1781 | ||
84e90930 MB |
1782 | trace_snd_soc_dapm_start(card); |
1783 | ||
56fba41f | 1784 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1785 | if (dapm_idle_bias_off(d)) |
497098be MB |
1786 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1787 | else | |
1788 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1789 | } |
7be31be8 | 1790 | |
6c120e19 | 1791 | dapm_reset(card); |
9b8a83b2 | 1792 | |
6d3ddc81 | 1793 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1794 | * lists indicating if they should be powered up or down. We |
1795 | * only check widgets that have been flagged as dirty but note | |
1796 | * that new widgets may be added to the dirty list while we | |
1797 | * iterate. | |
6d3ddc81 | 1798 | */ |
db432b41 | 1799 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1800 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1801 | } |
1802 | ||
f9de6d74 | 1803 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1804 | switch (w->id) { |
1805 | case snd_soc_dapm_pre: | |
1806 | case snd_soc_dapm_post: | |
1807 | /* These widgets always need to be powered */ | |
1808 | break; | |
1809 | default: | |
1810 | list_del_init(&w->dirty); | |
1811 | break; | |
1812 | } | |
db432b41 | 1813 | |
39eb5fd1 | 1814 | if (w->new_power) { |
f9de6d74 MB |
1815 | d = w->dapm; |
1816 | ||
1817 | /* Supplies and micbiases only bring the | |
1818 | * context up to STANDBY as unless something | |
1819 | * else is active and passing audio they | |
afe62367 MB |
1820 | * generally don't require full power. Signal |
1821 | * generators are virtual pins and have no | |
1822 | * power impact themselves. | |
f9de6d74 MB |
1823 | */ |
1824 | switch (w->id) { | |
afe62367 | 1825 | case snd_soc_dapm_siggen: |
da83fea6 | 1826 | case snd_soc_dapm_vmid: |
afe62367 | 1827 | break; |
f9de6d74 | 1828 | case snd_soc_dapm_supply: |
62ea874a | 1829 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1830 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1831 | case snd_soc_dapm_micbias: |
1832 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1833 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1834 | break; | |
1835 | default: | |
1836 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1837 | break; | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | } | |
1842 | ||
85a843c5 MB |
1843 | /* Force all contexts in the card to the same bias state if |
1844 | * they're not ground referenced. | |
1845 | */ | |
56fba41f | 1846 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1847 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1848 | if (d->target_bias_level > bias) |
1849 | bias = d->target_bias_level; | |
52ba67bf | 1850 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1851 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1852 | d->target_bias_level = bias; |
52ba67bf | 1853 | |
de02d078 | 1854 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1855 | |
17282ba4 XX |
1856 | /* Run card bias changes at first */ |
1857 | dapm_pre_sequence_async(&card->dapm, 0); | |
1858 | /* Run other bias changes in parallel */ | |
1859 | list_for_each_entry(d, &card->dapm_list, list) { | |
1860 | if (d != &card->dapm) | |
1861 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1862 | &async_domain); | |
1863 | } | |
9d0624a7 | 1864 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1865 | |
cf1f7c6e | 1866 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1867 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1868 | } |
1869 | ||
cf1f7c6e | 1870 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1871 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1872 | } |
1873 | ||
6d3ddc81 | 1874 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1875 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1876 | |
95dd5cd6 | 1877 | dapm_widget_update(card); |
97404f2e | 1878 | |
6d3ddc81 | 1879 | /* Now power up. */ |
95dd5cd6 | 1880 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1881 | |
9d0624a7 | 1882 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1883 | list_for_each_entry(d, &card->dapm_list, list) { |
1884 | if (d != &card->dapm) | |
1885 | async_schedule_domain(dapm_post_sequence_async, d, | |
1886 | &async_domain); | |
1887 | } | |
9d0624a7 | 1888 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1889 | /* Run card bias changes at last */ |
1890 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1891 | |
8078d87f LG |
1892 | /* do we need to notify any clients that DAPM event is complete */ |
1893 | list_for_each_entry(d, &card->dapm_list, list) { | |
1894 | if (d->stream_event) | |
1895 | d->stream_event(d, event); | |
1896 | } | |
1897 | ||
95dd5cd6 | 1898 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1899 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1900 | pop_wait(card->pop_time); |
cb507e7e | 1901 | |
84e90930 MB |
1902 | trace_snd_soc_dapm_done(card); |
1903 | ||
42aa3418 | 1904 | return 0; |
2b97eabc RP |
1905 | } |
1906 | ||
79fb9387 | 1907 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1908 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1909 | char __user *user_buf, | |
1910 | size_t count, loff_t *ppos) | |
1911 | { | |
1912 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1913 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 1914 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
1915 | char *buf; |
1916 | int in, out; | |
1917 | ssize_t ret; | |
1918 | struct snd_soc_dapm_path *p = NULL; | |
1919 | ||
1920 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1921 | if (!buf) | |
1922 | return -ENOMEM; | |
1923 | ||
e50b1e06 LPC |
1924 | mutex_lock(&card->dapm_mutex); |
1925 | ||
c1862c8b LPC |
1926 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1927 | if (w->is_supply) { | |
1928 | in = 0; | |
1929 | out = 0; | |
1930 | } else { | |
1931 | in = is_connected_input_ep(w, NULL); | |
1932 | out = is_connected_output_ep(w, NULL); | |
1933 | } | |
79fb9387 | 1934 | |
f13ebada MB |
1935 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1936 | w->name, w->power ? "On" : "Off", | |
1937 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1938 | |
d033c36a MB |
1939 | if (w->reg >= 0) |
1940 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1941 | " - R%d(0x%x) mask 0x%x", |
1942 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1943 | |
1944 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1945 | ||
3eef08ba MB |
1946 | if (w->sname) |
1947 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1948 | w->sname, | |
1949 | w->active ? "active" : "inactive"); | |
79fb9387 | 1950 | |
a3423b02 LPC |
1951 | snd_soc_dapm_for_each_direction(dir) { |
1952 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
1953 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
1954 | if (p->connected && !p->connected(w, p->node[rdir])) | |
1955 | continue; | |
215edda3 | 1956 | |
a3423b02 LPC |
1957 | if (!p->connect) |
1958 | continue; | |
215edda3 | 1959 | |
79fb9387 | 1960 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
1961 | " %s \"%s\" \"%s\"\n", |
1962 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 1963 | p->name ? p->name : "static", |
a3423b02 LPC |
1964 | p->node[rdir]->name); |
1965 | } | |
79fb9387 MB |
1966 | } |
1967 | ||
e50b1e06 LPC |
1968 | mutex_unlock(&card->dapm_mutex); |
1969 | ||
79fb9387 MB |
1970 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
1971 | ||
1972 | kfree(buf); | |
1973 | return ret; | |
1974 | } | |
1975 | ||
1976 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1977 | .open = simple_open, |
79fb9387 | 1978 | .read = dapm_widget_power_read_file, |
6038f373 | 1979 | .llseek = default_llseek, |
79fb9387 MB |
1980 | }; |
1981 | ||
ef49e4fa MB |
1982 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1983 | size_t count, loff_t *ppos) | |
1984 | { | |
1985 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1986 | char *level; | |
1987 | ||
1988 | switch (dapm->bias_level) { | |
1989 | case SND_SOC_BIAS_ON: | |
1990 | level = "On\n"; | |
1991 | break; | |
1992 | case SND_SOC_BIAS_PREPARE: | |
1993 | level = "Prepare\n"; | |
1994 | break; | |
1995 | case SND_SOC_BIAS_STANDBY: | |
1996 | level = "Standby\n"; | |
1997 | break; | |
1998 | case SND_SOC_BIAS_OFF: | |
1999 | level = "Off\n"; | |
2000 | break; | |
2001 | default: | |
a6ed0608 | 2002 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2003 | level = "Unknown\n"; |
2004 | break; | |
2005 | } | |
2006 | ||
2007 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2008 | strlen(level)); | |
2009 | } | |
2010 | ||
2011 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2012 | .open = simple_open, |
ef49e4fa MB |
2013 | .read = dapm_bias_read_file, |
2014 | .llseek = default_llseek, | |
2015 | }; | |
2016 | ||
8eecaf62 LPC |
2017 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2018 | struct dentry *parent) | |
79fb9387 | 2019 | { |
79fb9387 MB |
2020 | struct dentry *d; |
2021 | ||
6553bf06 LPC |
2022 | if (!parent) |
2023 | return; | |
2024 | ||
8eecaf62 LPC |
2025 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2026 | ||
2027 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2028 | dev_warn(dapm->dev, |
30a6a1a4 | 2029 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2030 | return; |
8eecaf62 | 2031 | } |
79fb9387 | 2032 | |
ef49e4fa MB |
2033 | d = debugfs_create_file("bias_level", 0444, |
2034 | dapm->debugfs_dapm, dapm, | |
2035 | &dapm_bias_fops); | |
2036 | if (!d) | |
2037 | dev_warn(dapm->dev, | |
2038 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2039 | } |
ef49e4fa | 2040 | |
d5d1e0be LPC |
2041 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2042 | { | |
2043 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2044 | struct dentry *d; | |
79fb9387 | 2045 | |
d5d1e0be LPC |
2046 | if (!dapm->debugfs_dapm || !w->name) |
2047 | return; | |
2048 | ||
2049 | d = debugfs_create_file(w->name, 0444, | |
2050 | dapm->debugfs_dapm, w, | |
2051 | &dapm_widget_power_fops); | |
2052 | if (!d) | |
2053 | dev_warn(w->dapm->dev, | |
2054 | "ASoC: Failed to create %s debugfs file\n", | |
2055 | w->name); | |
79fb9387 | 2056 | } |
d5d1e0be | 2057 | |
6c45e126 LPC |
2058 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2059 | { | |
2060 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2061 | } | |
2062 | ||
79fb9387 | 2063 | #else |
8eecaf62 LPC |
2064 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2065 | struct dentry *parent) | |
79fb9387 MB |
2066 | { |
2067 | } | |
d5d1e0be LPC |
2068 | |
2069 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2070 | { | |
2071 | } | |
2072 | ||
6c45e126 LPC |
2073 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2074 | { | |
2075 | } | |
2076 | ||
79fb9387 MB |
2077 | #endif |
2078 | ||
4a201948 LPC |
2079 | /* |
2080 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2081 | * @path: The path to update | |
2082 | * @connect: The new connect state of the path. True if the path is connected, | |
2083 | * false if it is disconneted. | |
2084 | * @reason: The reason why the path changed (for debugging only) | |
2085 | */ | |
2086 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2087 | bool connect, const char *reason) | |
2088 | { | |
2089 | if (path->connect == connect) | |
2090 | return; | |
2091 | ||
2092 | path->connect = connect; | |
2093 | dapm_mark_dirty(path->source, reason); | |
2094 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2095 | dapm_path_invalidate(path); |
4a201948 LPC |
2096 | } |
2097 | ||
2b97eabc | 2098 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2099 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2100 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2101 | { |
2102 | struct snd_soc_dapm_path *path; | |
2103 | int found = 0; | |
4a201948 | 2104 | bool connect; |
2b97eabc | 2105 | |
f9fa2b18 MB |
2106 | lockdep_assert_held(&card->dapm_mutex); |
2107 | ||
2b97eabc | 2108 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2109 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2110 | found = 1; |
2111 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2112 | if (!(strcmp(path->name, e->texts[mux]))) |
2113 | connect = true; | |
2114 | else | |
2115 | connect = false; | |
2116 | ||
2117 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2118 | } |
2119 | ||
ce6cfaf1 | 2120 | if (found) |
95dd5cd6 | 2121 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2122 | |
618dae11 | 2123 | return found; |
2b97eabc | 2124 | } |
4edbb345 | 2125 | |
ce6cfaf1 | 2126 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2127 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2128 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2129 | { |
ce6cfaf1 | 2130 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2131 | int ret; |
2132 | ||
3cd04343 | 2133 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2134 | card->update = update; |
95dd5cd6 | 2135 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2136 | card->update = NULL; |
4edbb345 | 2137 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2138 | if (ret > 0) |
c3f48ae6 | 2139 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2140 | return ret; |
2141 | } | |
40f02cd9 | 2142 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2143 | |
1b075e3f | 2144 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2145 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2146 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2147 | { |
2148 | struct snd_soc_dapm_path *path; | |
2149 | int found = 0; | |
2150 | ||
f9fa2b18 MB |
2151 | lockdep_assert_held(&card->dapm_mutex); |
2152 | ||
2b97eabc | 2153 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2154 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2155 | found = 1; |
4a201948 | 2156 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2157 | } |
2158 | ||
ce6cfaf1 | 2159 | if (found) |
95dd5cd6 | 2160 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2161 | |
618dae11 | 2162 | return found; |
2b97eabc | 2163 | } |
4edbb345 | 2164 | |
ce6cfaf1 | 2165 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2166 | struct snd_kcontrol *kcontrol, int connect, |
2167 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2168 | { |
ce6cfaf1 | 2169 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2170 | int ret; |
2171 | ||
3cd04343 | 2172 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2173 | card->update = update; |
95dd5cd6 | 2174 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2175 | card->update = NULL; |
4edbb345 | 2176 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2177 | if (ret > 0) |
c3f48ae6 | 2178 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2179 | return ret; |
2180 | } | |
40f02cd9 | 2181 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2182 | |
b3c25fb7 LPC |
2183 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2184 | char *buf) | |
2b97eabc | 2185 | { |
b3c25fb7 | 2186 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2187 | struct snd_soc_dapm_widget *w; |
2188 | int count = 0; | |
2189 | char *state = "not set"; | |
2190 | ||
b3c25fb7 LPC |
2191 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2192 | if (w->dapm != dapm) | |
97c866de | 2193 | continue; |
2b97eabc RP |
2194 | |
2195 | /* only display widgets that burnm power */ | |
2196 | switch (w->id) { | |
2197 | case snd_soc_dapm_hp: | |
2198 | case snd_soc_dapm_mic: | |
2199 | case snd_soc_dapm_spk: | |
2200 | case snd_soc_dapm_line: | |
2201 | case snd_soc_dapm_micbias: | |
2202 | case snd_soc_dapm_dac: | |
2203 | case snd_soc_dapm_adc: | |
2204 | case snd_soc_dapm_pga: | |
d88429a6 | 2205 | case snd_soc_dapm_out_drv: |
2b97eabc | 2206 | case snd_soc_dapm_mixer: |
ca9c1aae | 2207 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2208 | case snd_soc_dapm_supply: |
62ea874a | 2209 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2210 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2211 | if (w->name) |
2212 | count += sprintf(buf + count, "%s: %s\n", | |
2213 | w->name, w->power ? "On":"Off"); | |
2214 | break; | |
2215 | default: | |
2216 | break; | |
2217 | } | |
2218 | } | |
2219 | ||
b3c25fb7 | 2220 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2221 | case SND_SOC_BIAS_ON: |
2222 | state = "On"; | |
2b97eabc | 2223 | break; |
0be9898a MB |
2224 | case SND_SOC_BIAS_PREPARE: |
2225 | state = "Prepare"; | |
2b97eabc | 2226 | break; |
0be9898a MB |
2227 | case SND_SOC_BIAS_STANDBY: |
2228 | state = "Standby"; | |
2b97eabc | 2229 | break; |
0be9898a MB |
2230 | case SND_SOC_BIAS_OFF: |
2231 | state = "Off"; | |
2b97eabc RP |
2232 | break; |
2233 | } | |
2234 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2235 | ||
2236 | return count; | |
2237 | } | |
2238 | ||
44ba2641 BC |
2239 | /* show dapm widget status in sys fs */ |
2240 | static ssize_t dapm_widget_show(struct device *dev, | |
2241 | struct device_attribute *attr, char *buf) | |
2242 | { | |
2243 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2244 | int i, count = 0; | |
2245 | ||
e50b1e06 LPC |
2246 | mutex_lock(&rtd->card->dapm_mutex); |
2247 | ||
44ba2641 | 2248 | for (i = 0; i < rtd->num_codecs; i++) { |
b3c25fb7 LPC |
2249 | struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; |
2250 | ||
2251 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2252 | } |
2253 | ||
e50b1e06 LPC |
2254 | mutex_unlock(&rtd->card->dapm_mutex); |
2255 | ||
44ba2641 BC |
2256 | return count; |
2257 | } | |
2258 | ||
2b97eabc RP |
2259 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2260 | ||
d29697dc TI |
2261 | struct attribute *soc_dapm_dev_attrs[] = { |
2262 | &dev_attr_dapm_widget.attr, | |
2263 | NULL | |
2264 | }; | |
2b97eabc | 2265 | |
8872293f LPC |
2266 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2267 | { | |
a3423b02 LPC |
2268 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2269 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2270 | list_del(&path->list_kcontrol); |
8872293f | 2271 | list_del(&path->list); |
8872293f LPC |
2272 | kfree(path); |
2273 | } | |
2274 | ||
b97e2698 LPC |
2275 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2276 | { | |
2277 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2278 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2279 | |
2280 | list_del(&w->list); | |
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 | */ | |
a3423b02 LPC |
2286 | snd_soc_dapm_for_each_direction(dir) { |
2287 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2288 | dapm_free_path(p); | |
2289 | } | |
b97e2698 LPC |
2290 | |
2291 | kfree(w->kcontrols); | |
48068961 | 2292 | kfree_const(w->name); |
b97e2698 LPC |
2293 | kfree(w); |
2294 | } | |
2295 | ||
fd589a1b JS |
2296 | void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm) |
2297 | { | |
2298 | dapm->path_sink_cache.widget = NULL; | |
2299 | dapm->path_source_cache.widget = NULL; | |
2300 | } | |
2301 | ||
2b97eabc | 2302 | /* free all dapm widgets and resources */ |
ce6120cc | 2303 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2304 | { |
2305 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2306 | |
97c866de JN |
2307 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2308 | if (w->dapm != dapm) | |
2309 | continue; | |
b97e2698 | 2310 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2311 | } |
fd589a1b | 2312 | snd_soc_dapm_reset_cache(dapm); |
2b97eabc RP |
2313 | } |
2314 | ||
91a5fca4 LPC |
2315 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2316 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2317 | bool search_other_contexts) | |
a5302181 LG |
2318 | { |
2319 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2320 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2321 | |
97c866de | 2322 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2323 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2324 | if (w->dapm == dapm) |
2325 | return w; | |
2326 | else | |
2327 | fallback = w; | |
a5302181 LG |
2328 | } |
2329 | } | |
2330 | ||
91a5fca4 LPC |
2331 | if (search_other_contexts) |
2332 | return fallback; | |
2333 | ||
2334 | return NULL; | |
2335 | } | |
2336 | ||
2337 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2338 | const char *pin, int status) | |
2339 | { | |
2340 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2341 | ||
f9fa2b18 MB |
2342 | dapm_assert_locked(dapm); |
2343 | ||
91a5fca4 | 2344 | if (!w) { |
30a6a1a4 | 2345 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2346 | return -EINVAL; |
0d86733c MB |
2347 | } |
2348 | ||
92a99ea4 | 2349 | if (w->connected != status) { |
1a8b2d9d | 2350 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2351 | dapm_widget_invalidate_input_paths(w); |
2352 | dapm_widget_invalidate_output_paths(w); | |
2353 | } | |
1a8b2d9d | 2354 | |
91a5fca4 LPC |
2355 | w->connected = status; |
2356 | if (status == 0) | |
2357 | w->force = 0; | |
2358 | ||
2359 | return 0; | |
a5302181 LG |
2360 | } |
2361 | ||
2b97eabc | 2362 | /** |
3eb29dfb | 2363 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2364 | * @dapm: DAPM context |
2b97eabc RP |
2365 | * |
2366 | * Walks all dapm audio paths and powers widgets according to their | |
2367 | * stream or path usage. | |
2368 | * | |
3eb29dfb CK |
2369 | * Requires external locking. |
2370 | * | |
2b97eabc RP |
2371 | * Returns 0 for success. |
2372 | */ | |
3eb29dfb | 2373 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2374 | { |
4f4c0072 MB |
2375 | /* |
2376 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2377 | * silly DAPM runs during card startup. | |
2378 | */ | |
2379 | if (!dapm->card || !dapm->card->instantiated) | |
2380 | return 0; | |
2381 | ||
3eb29dfb CK |
2382 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2383 | } | |
2384 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2385 | ||
2386 | /** | |
2387 | * snd_soc_dapm_sync - scan and power dapm paths | |
2388 | * @dapm: DAPM context | |
2389 | * | |
2390 | * Walks all dapm audio paths and powers widgets according to their | |
2391 | * stream or path usage. | |
2392 | * | |
2393 | * Returns 0 for success. | |
2394 | */ | |
2395 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2396 | { | |
2397 | int ret; | |
2398 | ||
3cd04343 | 2399 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2400 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2401 | mutex_unlock(&dapm->card->dapm_mutex); |
2402 | return ret; | |
2b97eabc | 2403 | } |
a5302181 | 2404 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2405 | |
6dd98b0a LPC |
2406 | /* |
2407 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2408 | * @w: The widget for which to update the flags | |
2409 | * | |
2410 | * Some widgets have a dynamic category which depends on which neighbors they | |
2411 | * are connected to. This function update the category for these widgets. | |
2412 | * | |
2413 | * This function must be called whenever a path is added or removed to a widget. | |
2414 | */ | |
2415 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2416 | { | |
a3423b02 | 2417 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2418 | struct snd_soc_dapm_path *p; |
a3423b02 | 2419 | unsigned int ep; |
6dd98b0a LPC |
2420 | |
2421 | switch (w->id) { | |
2422 | case snd_soc_dapm_input: | |
86d75003 LPC |
2423 | /* On a fully routed card a input is never a source */ |
2424 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2425 | return; |
2426 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2427 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2428 | if (p->source->id == snd_soc_dapm_micbias || |
2429 | p->source->id == snd_soc_dapm_mic || | |
2430 | p->source->id == snd_soc_dapm_line || | |
2431 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2432 | ep = 0; |
6dd98b0a LPC |
2433 | break; |
2434 | } | |
2435 | } | |
2436 | break; | |
2437 | case snd_soc_dapm_output: | |
86d75003 LPC |
2438 | /* On a fully routed card a output is never a sink */ |
2439 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2440 | return; |
2441 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2442 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2443 | if (p->sink->id == snd_soc_dapm_spk || |
2444 | p->sink->id == snd_soc_dapm_hp || | |
2445 | p->sink->id == snd_soc_dapm_line || | |
2446 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2447 | ep = 0; |
6dd98b0a LPC |
2448 | break; |
2449 | } | |
2450 | } | |
2451 | break; | |
2452 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2453 | ep = 0; |
2454 | snd_soc_dapm_for_each_direction(dir) { | |
2455 | if (!list_empty(&w->edges[dir])) | |
2456 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2457 | } | |
6dd98b0a LPC |
2458 | break; |
2459 | default: | |
a3423b02 | 2460 | return; |
6dd98b0a | 2461 | } |
a3423b02 LPC |
2462 | |
2463 | w->is_ep = ep; | |
6dd98b0a LPC |
2464 | } |
2465 | ||
d714f97c LPC |
2466 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2467 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2468 | const char *control) | |
2469 | { | |
2470 | bool dynamic_source = false; | |
2471 | bool dynamic_sink = false; | |
2472 | ||
2473 | if (!control) | |
2474 | return 0; | |
2475 | ||
2476 | switch (source->id) { | |
2477 | case snd_soc_dapm_demux: | |
2478 | dynamic_source = true; | |
2479 | break; | |
2480 | default: | |
2481 | break; | |
2482 | } | |
2483 | ||
2484 | switch (sink->id) { | |
2485 | case snd_soc_dapm_mux: | |
2486 | case snd_soc_dapm_switch: | |
2487 | case snd_soc_dapm_mixer: | |
2488 | case snd_soc_dapm_mixer_named_ctl: | |
2489 | dynamic_sink = true; | |
2490 | break; | |
2491 | default: | |
2492 | break; | |
2493 | } | |
2494 | ||
2495 | if (dynamic_source && dynamic_sink) { | |
2496 | dev_err(dapm->dev, | |
2497 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2498 | source->name, control, sink->name); | |
2499 | return -EINVAL; | |
2500 | } else if (!dynamic_source && !dynamic_sink) { | |
2501 | dev_err(dapm->dev, | |
2502 | "Control not supported for path %s -> [%s] -> %s\n", | |
2503 | source->name, control, sink->name); | |
2504 | return -EINVAL; | |
2505 | } | |
2506 | ||
2507 | return 0; | |
2508 | } | |
2509 | ||
2553628e LPC |
2510 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2511 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2512 | const char *control, | |
2513 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2514 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2515 | { |
a3423b02 LPC |
2516 | struct snd_soc_dapm_widget *widgets[2]; |
2517 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2518 | struct snd_soc_dapm_path *path; |
2553628e | 2519 | int ret; |
2b97eabc | 2520 | |
e409dfbf LPC |
2521 | if (wsink->is_supply && !wsource->is_supply) { |
2522 | dev_err(dapm->dev, | |
2523 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2524 | wsource->name, wsink->name); | |
2525 | return -EINVAL; | |
2526 | } | |
2527 | ||
2528 | if (connected && !wsource->is_supply) { | |
2529 | dev_err(dapm->dev, | |
2530 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2531 | wsource->name, wsink->name); | |
2532 | return -EINVAL; | |
2533 | } | |
2534 | ||
2535 | if (wsource->is_supply && control) { | |
2536 | dev_err(dapm->dev, | |
2537 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2538 | wsource->name, control, wsink->name); | |
2539 | return -EINVAL; | |
2540 | } | |
2541 | ||
d714f97c LPC |
2542 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2543 | if (ret) | |
2544 | return ret; | |
2545 | ||
2b97eabc RP |
2546 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2547 | if (!path) | |
2548 | return -ENOMEM; | |
2549 | ||
a3423b02 LPC |
2550 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2551 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2552 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2553 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2554 | ||
2553628e | 2555 | path->connected = connected; |
2b97eabc | 2556 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2557 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2558 | |
c1862c8b LPC |
2559 | if (wsource->is_supply || wsink->is_supply) |
2560 | path->is_supply = 1; | |
2561 | ||
2b97eabc RP |
2562 | /* connect static paths */ |
2563 | if (control == NULL) { | |
2b97eabc | 2564 | path->connect = 1; |
5fe5b767 | 2565 | } else { |
d714f97c LPC |
2566 | switch (wsource->id) { |
2567 | case snd_soc_dapm_demux: | |
2568 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2569 | if (ret) | |
2570 | goto err; | |
2571 | break; | |
2572 | default: | |
2573 | break; | |
2574 | } | |
2575 | ||
5fe5b767 LPC |
2576 | switch (wsink->id) { |
2577 | case snd_soc_dapm_mux: | |
d714f97c | 2578 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2579 | if (ret != 0) |
2580 | goto err; | |
2581 | break; | |
2582 | case snd_soc_dapm_switch: | |
2583 | case snd_soc_dapm_mixer: | |
2584 | case snd_soc_dapm_mixer_named_ctl: | |
2585 | ret = dapm_connect_mixer(dapm, path, control); | |
2586 | if (ret != 0) | |
2587 | goto err; | |
2588 | break; | |
2589 | default: | |
d714f97c | 2590 | break; |
5fe5b767 | 2591 | } |
2b97eabc | 2592 | } |
fabd0384 | 2593 | |
5fe5b767 | 2594 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2595 | snd_soc_dapm_for_each_direction(dir) |
2596 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2597 | |
a3423b02 LPC |
2598 | snd_soc_dapm_for_each_direction(dir) { |
2599 | dapm_update_widget_flags(widgets[dir]); | |
2600 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2601 | } | |
5fe5b767 | 2602 | |
92a99ea4 LPC |
2603 | if (dapm->card->instantiated && path->connect) |
2604 | dapm_path_invalidate(path); | |
2605 | ||
2b97eabc | 2606 | return 0; |
2553628e LPC |
2607 | err: |
2608 | kfree(path); | |
2609 | return ret; | |
2610 | } | |
2b97eabc | 2611 | |
2553628e | 2612 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2613 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2614 | { |
2615 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2616 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2617 | const char *sink; | |
2618 | const char *source; | |
2619 | char prefixed_sink[80]; | |
2620 | char prefixed_source[80]; | |
94f99c87 | 2621 | const char *prefix; |
2553628e LPC |
2622 | int ret; |
2623 | ||
94f99c87 LPC |
2624 | prefix = soc_dapm_prefix(dapm); |
2625 | if (prefix) { | |
2553628e | 2626 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2627 | prefix, route->sink); |
2553628e LPC |
2628 | sink = prefixed_sink; |
2629 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2630 | prefix, route->source); |
2553628e LPC |
2631 | source = prefixed_source; |
2632 | } else { | |
2633 | sink = route->sink; | |
2634 | source = route->source; | |
2635 | } | |
2636 | ||
45a110a1 CK |
2637 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2638 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2639 | ||
2640 | if (wsink && wsource) | |
2641 | goto skip_search; | |
2642 | ||
2553628e LPC |
2643 | /* |
2644 | * find src and dest widgets over all widgets but favor a widget from | |
2645 | * current DAPM context | |
2646 | */ | |
2647 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2648 | if (!wsink && !(strcmp(w->name, sink))) { | |
2649 | wtsink = w; | |
70c75109 | 2650 | if (w->dapm == dapm) { |
2553628e | 2651 | wsink = w; |
70c75109 CK |
2652 | if (wsource) |
2653 | break; | |
2654 | } | |
2553628e LPC |
2655 | continue; |
2656 | } | |
2657 | if (!wsource && !(strcmp(w->name, source))) { | |
2658 | wtsource = w; | |
70c75109 | 2659 | if (w->dapm == dapm) { |
2553628e | 2660 | wsource = w; |
70c75109 CK |
2661 | if (wsink) |
2662 | break; | |
2663 | } | |
2553628e LPC |
2664 | } |
2665 | } | |
2666 | /* use widget from another DAPM context if not found from this */ | |
2667 | if (!wsink) | |
2668 | wsink = wtsink; | |
2669 | if (!wsource) | |
2670 | wsource = wtsource; | |
2671 | ||
2672 | if (wsource == NULL) { | |
2673 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2674 | route->source); | |
2675 | return -ENODEV; | |
2676 | } | |
2677 | if (wsink == NULL) { | |
2678 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2679 | route->sink); | |
2680 | return -ENODEV; | |
2681 | } | |
2682 | ||
45a110a1 CK |
2683 | skip_search: |
2684 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2685 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2686 | ||
2553628e LPC |
2687 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2688 | route->connected); | |
2689 | if (ret) | |
2690 | goto err; | |
2691 | ||
2692 | return 0; | |
2b97eabc | 2693 | err: |
30a6a1a4 | 2694 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2695 | source, route->control, sink); |
2b97eabc RP |
2696 | return ret; |
2697 | } | |
105f1c28 | 2698 | |
efcc3c61 MB |
2699 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2700 | const struct snd_soc_dapm_route *route) | |
2701 | { | |
6dd98b0a | 2702 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2703 | struct snd_soc_dapm_path *path, *p; |
2704 | const char *sink; | |
2705 | const char *source; | |
2706 | char prefixed_sink[80]; | |
2707 | char prefixed_source[80]; | |
94f99c87 | 2708 | const char *prefix; |
efcc3c61 MB |
2709 | |
2710 | if (route->control) { | |
2711 | dev_err(dapm->dev, | |
30a6a1a4 | 2712 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2713 | return -EINVAL; |
2714 | } | |
2715 | ||
94f99c87 LPC |
2716 | prefix = soc_dapm_prefix(dapm); |
2717 | if (prefix) { | |
efcc3c61 | 2718 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2719 | prefix, route->sink); |
efcc3c61 MB |
2720 | sink = prefixed_sink; |
2721 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2722 | prefix, route->source); |
efcc3c61 MB |
2723 | source = prefixed_source; |
2724 | } else { | |
2725 | sink = route->sink; | |
2726 | source = route->source; | |
2727 | } | |
2728 | ||
2729 | path = NULL; | |
2730 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2731 | if (strcmp(p->source->name, source) != 0) | |
2732 | continue; | |
2733 | if (strcmp(p->sink->name, sink) != 0) | |
2734 | continue; | |
2735 | path = p; | |
2736 | break; | |
2737 | } | |
2738 | ||
2739 | if (path) { | |
6dd98b0a LPC |
2740 | wsource = path->source; |
2741 | wsink = path->sink; | |
2742 | ||
2743 | dapm_mark_dirty(wsource, "Route removed"); | |
2744 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2745 | if (path->connect) |
2746 | dapm_path_invalidate(path); | |
efcc3c61 | 2747 | |
8872293f | 2748 | dapm_free_path(path); |
6dd98b0a LPC |
2749 | |
2750 | /* Update any path related flags */ | |
2751 | dapm_update_widget_flags(wsource); | |
2752 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2753 | } else { |
30a6a1a4 | 2754 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2755 | source, sink); |
2756 | } | |
2757 | ||
2758 | return 0; | |
2759 | } | |
2760 | ||
105f1c28 MB |
2761 | /** |
2762 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2763 | * @dapm: DAPM context |
105f1c28 MB |
2764 | * @route: audio routes |
2765 | * @num: number of routes | |
2766 | * | |
2767 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2768 | * the widget receiving the audio signal, whilst the source is the sender | |
2769 | * of the audio signal. | |
2770 | * | |
2771 | * Returns 0 for success else error. On error all resources can be freed | |
2772 | * with a call to snd_soc_card_free(). | |
2773 | */ | |
ce6120cc | 2774 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2775 | const struct snd_soc_dapm_route *route, int num) |
2776 | { | |
62d4a4b9 | 2777 | int i, r, ret = 0; |
105f1c28 | 2778 | |
a73fb2df | 2779 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2780 | for (i = 0; i < num; i++) { |
a4e9154c | 2781 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2782 | if (r < 0) { |
30a6a1a4 LG |
2783 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2784 | route->source, | |
2785 | route->control ? route->control : "direct", | |
2786 | route->sink); | |
62d4a4b9 | 2787 | ret = r; |
105f1c28 MB |
2788 | } |
2789 | route++; | |
2790 | } | |
a73fb2df | 2791 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2792 | |
60884c27 | 2793 | return ret; |
105f1c28 MB |
2794 | } |
2795 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2796 | ||
efcc3c61 MB |
2797 | /** |
2798 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2799 | * @dapm: DAPM context | |
2800 | * @route: audio routes | |
2801 | * @num: number of routes | |
2802 | * | |
2803 | * Removes routes from the DAPM context. | |
2804 | */ | |
2805 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2806 | const struct snd_soc_dapm_route *route, int num) | |
2807 | { | |
e066ea22 | 2808 | int i; |
efcc3c61 MB |
2809 | |
2810 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2811 | for (i = 0; i < num; i++) { | |
2812 | snd_soc_dapm_del_route(dapm, route); | |
2813 | route++; | |
2814 | } | |
2815 | mutex_unlock(&dapm->card->dapm_mutex); | |
2816 | ||
e066ea22 | 2817 | return 0; |
efcc3c61 MB |
2818 | } |
2819 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2820 | ||
bf3a9e13 MB |
2821 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2822 | const struct snd_soc_dapm_route *route) | |
2823 | { | |
2824 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2825 | route->source, | |
2826 | true); | |
2827 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2828 | route->sink, | |
2829 | true); | |
2830 | struct snd_soc_dapm_path *path; | |
2831 | int count = 0; | |
2832 | ||
2833 | if (!source) { | |
30a6a1a4 | 2834 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2835 | route->source); |
2836 | return -ENODEV; | |
2837 | } | |
2838 | ||
2839 | if (!sink) { | |
30a6a1a4 | 2840 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2841 | route->sink); |
2842 | return -ENODEV; | |
2843 | } | |
2844 | ||
2845 | if (route->control || route->connected) | |
30a6a1a4 | 2846 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2847 | route->source, route->sink); |
2848 | ||
e63bfd45 | 2849 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
2850 | if (path->sink == sink) { |
2851 | path->weak = 1; | |
2852 | count++; | |
2853 | } | |
2854 | } | |
2855 | ||
2856 | if (count == 0) | |
30a6a1a4 | 2857 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2858 | route->source, route->sink); |
2859 | if (count > 1) | |
30a6a1a4 | 2860 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2861 | count, route->source, route->sink); |
2862 | ||
2863 | return 0; | |
2864 | } | |
2865 | ||
2866 | /** | |
2867 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2868 | * @dapm: DAPM context | |
2869 | * @route: audio routes | |
2870 | * @num: number of routes | |
2871 | * | |
2872 | * Mark existing routes matching those specified in the passed array | |
2873 | * as being weak, meaning that they are ignored for the purpose of | |
2874 | * power decisions. The main intended use case is for sidetone paths | |
2875 | * which couple audio between other independent paths if they are both | |
2876 | * active in order to make the combination work better at the user | |
2877 | * level but which aren't intended to be "used". | |
2878 | * | |
2879 | * Note that CODEC drivers should not use this as sidetone type paths | |
2880 | * can frequently also be used as bypass paths. | |
2881 | */ | |
2882 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2883 | const struct snd_soc_dapm_route *route, int num) | |
2884 | { | |
2885 | int i, err; | |
2886 | int ret = 0; | |
2887 | ||
a73fb2df | 2888 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2889 | for (i = 0; i < num; i++) { |
2890 | err = snd_soc_dapm_weak_route(dapm, route); | |
2891 | if (err) | |
2892 | ret = err; | |
2893 | route++; | |
2894 | } | |
a73fb2df | 2895 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2896 | |
2897 | return ret; | |
2898 | } | |
2899 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2900 | ||
2b97eabc RP |
2901 | /** |
2902 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 2903 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
2904 | * |
2905 | * Checks the codec for any new dapm widgets and creates them if found. | |
2906 | * | |
2907 | * Returns 0 for success. | |
2908 | */ | |
824ef826 | 2909 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2910 | { |
2911 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2912 | unsigned int val; |
2b97eabc | 2913 | |
95dd5cd6 | 2914 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2915 | |
95dd5cd6 | 2916 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2917 | { |
2918 | if (w->new) | |
2919 | continue; | |
2920 | ||
fad59888 SW |
2921 | if (w->num_kcontrols) { |
2922 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2923 | sizeof(struct snd_kcontrol *), | |
2924 | GFP_KERNEL); | |
a73fb2df | 2925 | if (!w->kcontrols) { |
95dd5cd6 | 2926 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2927 | return -ENOMEM; |
a73fb2df | 2928 | } |
fad59888 SW |
2929 | } |
2930 | ||
2b97eabc RP |
2931 | switch(w->id) { |
2932 | case snd_soc_dapm_switch: | |
2933 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2934 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2935 | dapm_new_mixer(w); |
2b97eabc RP |
2936 | break; |
2937 | case snd_soc_dapm_mux: | |
d714f97c | 2938 | case snd_soc_dapm_demux: |
4b80b8c2 | 2939 | dapm_new_mux(w); |
2b97eabc | 2940 | break; |
2b97eabc | 2941 | case snd_soc_dapm_pga: |
d88429a6 | 2942 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2943 | dapm_new_pga(w); |
2b97eabc | 2944 | break; |
c6615082 NO |
2945 | case snd_soc_dapm_dai_link: |
2946 | dapm_new_dai_link(w); | |
2947 | break; | |
7ca3a18b | 2948 | default: |
2b97eabc RP |
2949 | break; |
2950 | } | |
b66a70d5 MB |
2951 | |
2952 | /* Read the initial power state from the device */ | |
2953 | if (w->reg >= 0) { | |
ce0fc93a | 2954 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2955 | val = val >> w->shift; |
de9ba98b LPC |
2956 | val &= w->mask; |
2957 | if (val == w->on_val) | |
b66a70d5 MB |
2958 | w->power = 1; |
2959 | } | |
2960 | ||
2b97eabc | 2961 | w->new = 1; |
d5d1e0be | 2962 | |
7508b12a | 2963 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2964 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2965 | } |
2966 | ||
95dd5cd6 LPC |
2967 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2968 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2969 | return 0; |
2970 | } | |
2971 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2972 | ||
2973 | /** | |
2974 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2975 | * @kcontrol: mixer control | |
ac11a2b3 | 2976 | * @ucontrol: control element information |
2b97eabc RP |
2977 | * |
2978 | * Callback to get the value of a dapm mixer control. | |
2979 | * | |
2980 | * Returns 0 for success. | |
2981 | */ | |
2982 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2983 | struct snd_ctl_elem_value *ucontrol) | |
2984 | { | |
ce0fc93a LPC |
2985 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2986 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2987 | struct soc_mixer_control *mc = |
2988 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2989 | int reg = mc->reg; |
815ecf8d | 2990 | unsigned int shift = mc->shift; |
4eaa9819 | 2991 | int max = mc->max; |
815ecf8d | 2992 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2993 | unsigned int invert = mc->invert; |
57295073 | 2994 | unsigned int val; |
ce0fc93a | 2995 | int ret = 0; |
da602ab8 BT |
2996 | |
2997 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2998 | dev_warn(dapm->dev, |
30a6a1a4 | 2999 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 3000 | kcontrol->id.name); |
2b97eabc | 3001 | |
57295073 | 3002 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
3003 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
3004 | ret = soc_dapm_read(dapm, reg, &val); | |
3005 | val = (val >> shift) & mask; | |
3006 | } else { | |
57295073 | 3007 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 3008 | } |
57295073 LPC |
3009 | mutex_unlock(&card->dapm_mutex); |
3010 | ||
da602ab8 | 3011 | if (invert) |
57295073 LPC |
3012 | ucontrol->value.integer.value[0] = max - val; |
3013 | else | |
3014 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3015 | |
ce0fc93a | 3016 | return ret; |
2b97eabc RP |
3017 | } |
3018 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3019 | ||
3020 | /** | |
3021 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3022 | * @kcontrol: mixer control | |
ac11a2b3 | 3023 | * @ucontrol: control element information |
2b97eabc RP |
3024 | * |
3025 | * Callback to set the value of a dapm mixer control. | |
3026 | * | |
3027 | * Returns 0 for success. | |
3028 | */ | |
3029 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3030 | struct snd_ctl_elem_value *ucontrol) | |
3031 | { | |
ce0fc93a LPC |
3032 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3033 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3034 | struct soc_mixer_control *mc = |
3035 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3036 | int reg = mc->reg; |
815ecf8d | 3037 | unsigned int shift = mc->shift; |
4eaa9819 | 3038 | int max = mc->max; |
815ecf8d JS |
3039 | unsigned int mask = (1 << fls(max)) - 1; |
3040 | unsigned int invert = mc->invert; | |
e9cf7049 | 3041 | unsigned int val; |
18626c7e | 3042 | int connect, change, reg_change = 0; |
97404f2e | 3043 | struct snd_soc_dapm_update update; |
52765976 | 3044 | int ret = 0; |
2b97eabc | 3045 | |
da602ab8 | 3046 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3047 | dev_warn(dapm->dev, |
30a6a1a4 | 3048 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3049 | kcontrol->id.name); |
3050 | ||
2b97eabc | 3051 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3052 | connect = !!val; |
2b97eabc RP |
3053 | |
3054 | if (invert) | |
a7a4ac86 | 3055 | val = max - val; |
2b97eabc | 3056 | |
3cd04343 | 3057 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3058 | |
249ce138 | 3059 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3060 | |
18626c7e JN |
3061 | if (reg != SND_SOC_NOPM) { |
3062 | mask = mask << shift; | |
3063 | val = val << shift; | |
3064 | ||
ce0fc93a | 3065 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3066 | } |
3067 | ||
3068 | if (change || reg_change) { | |
3069 | if (reg_change) { | |
3070 | update.kcontrol = kcontrol; | |
3071 | update.reg = reg; | |
3072 | update.mask = mask; | |
3073 | update.val = val; | |
3074 | card->update = &update; | |
249ce138 | 3075 | } |
18626c7e | 3076 | change |= reg_change; |
97404f2e | 3077 | |
52765976 | 3078 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3079 | |
564c6504 | 3080 | card->update = NULL; |
283375ce MB |
3081 | } |
3082 | ||
a73fb2df | 3083 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3084 | |
3085 | if (ret > 0) | |
3086 | soc_dpcm_runtime_update(card); | |
3087 | ||
56a67834 | 3088 | return change; |
2b97eabc RP |
3089 | } |
3090 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3091 | ||
3092 | /** | |
3093 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3094 | * @kcontrol: mixer control | |
ac11a2b3 | 3095 | * @ucontrol: control element information |
2b97eabc RP |
3096 | * |
3097 | * Callback to get the value of a dapm enumerated double mixer control. | |
3098 | * | |
3099 | * Returns 0 for success. | |
3100 | */ | |
3101 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3102 | struct snd_ctl_elem_value *ucontrol) | |
3103 | { | |
ce0fc93a | 3104 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3105 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3106 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3107 | unsigned int reg_val, val; |
52765976 | 3108 | |
561ed680 CK |
3109 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3110 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3111 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3112 | if (ret) { |
3113 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3114 | return ret; |
964a0b89 | 3115 | } |
69128316 | 3116 | } else { |
236aaa68 | 3117 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3118 | } |
561ed680 | 3119 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3120 | |
2e72f8e3 | 3121 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3122 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3123 | if (e->shift_l != e->shift_r) { |
3124 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3125 | val = snd_soc_enum_val_to_item(e, val); |
3126 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3127 | } |
3128 | ||
69128316 | 3129 | return 0; |
2e72f8e3 | 3130 | } |
2b97eabc | 3131 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3132 | |
3133 | /** | |
2b97eabc | 3134 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3135 | * @kcontrol: mixer control |
3136 | * @ucontrol: control element information | |
3137 | * | |
2b97eabc | 3138 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3139 | * |
3140 | * Returns 0 for success. | |
3141 | */ | |
2b97eabc | 3142 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3143 | struct snd_ctl_elem_value *ucontrol) |
3144 | { | |
ce0fc93a LPC |
3145 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3146 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3147 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3148 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3149 | unsigned int val, change, reg_change = 0; |
46f5822f | 3150 | unsigned int mask; |
97404f2e | 3151 | struct snd_soc_dapm_update update; |
52765976 | 3152 | int ret = 0; |
2e72f8e3 | 3153 | |
3727b496 | 3154 | if (item[0] >= e->items) |
2e72f8e3 | 3155 | return -EINVAL; |
3727b496 LPC |
3156 | |
3157 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3158 | mask = e->mask << e->shift_l; |
3159 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3160 | if (item[1] > e->items) |
2e72f8e3 | 3161 | return -EINVAL; |
3727b496 | 3162 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
3163 | mask |= e->mask << e->shift_r; |
3164 | } | |
3165 | ||
3cd04343 | 3166 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3167 | |
561ed680 CK |
3168 | change = dapm_kcontrol_set_value(kcontrol, val); |
3169 | ||
236aaa68 | 3170 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3171 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3172 | |
561ed680 CK |
3173 | if (change || reg_change) { |
3174 | if (reg_change) { | |
236aaa68 LPC |
3175 | update.kcontrol = kcontrol; |
3176 | update.reg = e->reg; | |
3177 | update.mask = mask; | |
3178 | update.val = val; | |
3179 | card->update = &update; | |
3180 | } | |
561ed680 | 3181 | change |= reg_change; |
1642e3d4 | 3182 | |
3727b496 | 3183 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3184 | |
564c6504 | 3185 | card->update = NULL; |
fafd2176 | 3186 | } |
2e72f8e3 | 3187 | |
a73fb2df | 3188 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3189 | |
3190 | if (ret > 0) | |
3191 | soc_dpcm_runtime_update(card); | |
3192 | ||
97404f2e | 3193 | return change; |
2e72f8e3 | 3194 | } |
2b97eabc | 3195 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3196 | |
8b37dbd2 MB |
3197 | /** |
3198 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3199 | * | |
3200 | * @kcontrol: mixer control | |
3201 | * @uinfo: control element information | |
3202 | * | |
3203 | * Callback to provide information about a pin switch control. | |
3204 | */ | |
3205 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3206 | struct snd_ctl_elem_info *uinfo) | |
3207 | { | |
3208 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3209 | uinfo->count = 1; | |
3210 | uinfo->value.integer.min = 0; | |
3211 | uinfo->value.integer.max = 1; | |
3212 | ||
3213 | return 0; | |
3214 | } | |
3215 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3216 | ||
3217 | /** | |
3218 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3219 | * | |
3220 | * @kcontrol: mixer control | |
3221 | * @ucontrol: Value | |
3222 | */ | |
3223 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3224 | struct snd_ctl_elem_value *ucontrol) | |
3225 | { | |
48a8c394 | 3226 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3227 | const char *pin = (const char *)kcontrol->private_value; |
3228 | ||
3cd04343 | 3229 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3230 | |
3231 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3232 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3233 | |
a73fb2df | 3234 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3235 | |
3236 | return 0; | |
3237 | } | |
3238 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3239 | ||
3240 | /** | |
3241 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3242 | * | |
3243 | * @kcontrol: mixer control | |
3244 | * @ucontrol: Value | |
3245 | */ | |
3246 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3247 | struct snd_ctl_elem_value *ucontrol) | |
3248 | { | |
48a8c394 | 3249 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3250 | const char *pin = (const char *)kcontrol->private_value; |
3251 | ||
8b37dbd2 | 3252 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3253 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3254 | else |
48a8c394 | 3255 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3256 | |
a73fb2df | 3257 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3258 | return 0; |
3259 | } | |
3260 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3261 | ||
cc76e7de | 3262 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3263 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3264 | const struct snd_soc_dapm_widget *widget) |
3265 | { | |
3266 | struct snd_soc_dapm_widget *w; | |
3267 | ||
3268 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3269 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3270 | if (!w) | |
3271 | dev_err(dapm->dev, | |
3272 | "ASoC: Failed to create DAPM control %s\n", | |
3273 | widget->name); | |
3274 | ||
3275 | mutex_unlock(&dapm->card->dapm_mutex); | |
3276 | return w; | |
3277 | } | |
3278 | ||
3279 | struct snd_soc_dapm_widget * | |
3280 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3281 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3282 | { |
a3423b02 | 3283 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3284 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3285 | const char *prefix; |
62ea874a | 3286 | int ret; |
2b97eabc RP |
3287 | |
3288 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3289 | return NULL; |
2b97eabc | 3290 | |
62ea874a MB |
3291 | switch (w->id) { |
3292 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3293 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3294 | if (IS_ERR(w->regulator)) { | |
3295 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3296 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3297 | w->name, ret); |
5ba06fc9 | 3298 | return NULL; |
62ea874a | 3299 | } |
8784c77a | 3300 | |
de9ba98b | 3301 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3302 | ret = regulator_allow_bypass(w->regulator, true); |
3303 | if (ret != 0) | |
3304 | dev_warn(w->dapm->dev, | |
30686c35 | 3305 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3306 | w->name, ret); |
3307 | } | |
62ea874a | 3308 | break; |
d7e7eb91 | 3309 | case snd_soc_dapm_clock_supply: |
165961ef | 3310 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3311 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3312 | if (IS_ERR(w->clk)) { |
3313 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3314 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3315 | w->name, ret); |
3316 | return NULL; | |
3317 | } | |
ec02995a MB |
3318 | #else |
3319 | return NULL; | |
3320 | #endif | |
d7e7eb91 | 3321 | break; |
62ea874a MB |
3322 | default: |
3323 | break; | |
3324 | } | |
2b97eabc | 3325 | |
94f99c87 | 3326 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3327 | if (prefix) |
94f99c87 | 3328 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3329 | else |
48068961 | 3330 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3331 | if (w->name == NULL) { |
3332 | kfree(w); | |
5ba06fc9 | 3333 | return NULL; |
ead9b919 | 3334 | } |
ead9b919 | 3335 | |
7ca3a18b | 3336 | switch (w->id) { |
6dd98b0a | 3337 | case snd_soc_dapm_mic: |
a3423b02 | 3338 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3339 | w->power_check = dapm_generic_check_power; |
3340 | break; | |
86d75003 LPC |
3341 | case snd_soc_dapm_input: |
3342 | if (!dapm->card->fully_routed) | |
a3423b02 | 3343 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3344 | w->power_check = dapm_generic_check_power; |
3345 | break; | |
6dd98b0a LPC |
3346 | case snd_soc_dapm_spk: |
3347 | case snd_soc_dapm_hp: | |
a3423b02 | 3348 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3349 | w->power_check = dapm_generic_check_power; |
3350 | break; | |
86d75003 LPC |
3351 | case snd_soc_dapm_output: |
3352 | if (!dapm->card->fully_routed) | |
a3423b02 | 3353 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3354 | w->power_check = dapm_generic_check_power; |
3355 | break; | |
6dd98b0a LPC |
3356 | case snd_soc_dapm_vmid: |
3357 | case snd_soc_dapm_siggen: | |
a3423b02 | 3358 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3359 | w->power_check = dapm_always_on_check_power; |
3360 | break; | |
56b4437f VK |
3361 | case snd_soc_dapm_sink: |
3362 | w->is_ep = SND_SOC_DAPM_EP_SINK; | |
3363 | w->power_check = dapm_always_on_check_power; | |
3364 | break; | |
3365 | ||
6dd98b0a | 3366 | case snd_soc_dapm_mux: |
d714f97c | 3367 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3368 | case snd_soc_dapm_switch: |
3369 | case snd_soc_dapm_mixer: | |
3370 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3371 | case snd_soc_dapm_adc: |
3372 | case snd_soc_dapm_aif_out: | |
3373 | case snd_soc_dapm_dac: | |
3374 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3375 | case snd_soc_dapm_pga: |
3376 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3377 | case snd_soc_dapm_micbias: |
7ca3a18b | 3378 | case snd_soc_dapm_line: |
c74184ed | 3379 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3380 | case snd_soc_dapm_dai_out: |
3381 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3382 | w->power_check = dapm_generic_check_power; |
3383 | break; | |
3384 | case snd_soc_dapm_supply: | |
62ea874a | 3385 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3386 | case snd_soc_dapm_clock_supply: |
57295073 | 3387 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3388 | w->is_supply = 1; |
7ca3a18b MB |
3389 | w->power_check = dapm_supply_check_power; |
3390 | break; | |
3391 | default: | |
3392 | w->power_check = dapm_always_on_check_power; | |
3393 | break; | |
3394 | } | |
3395 | ||
ce6120cc | 3396 | w->dapm = dapm; |
2b97eabc | 3397 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3398 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3399 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3400 | |
a3423b02 LPC |
3401 | snd_soc_dapm_for_each_direction(dir) { |
3402 | INIT_LIST_HEAD(&w->edges[dir]); | |
3403 | w->endpoints[dir] = -1; | |
3404 | } | |
92a99ea4 | 3405 | |
2b97eabc RP |
3406 | /* machine layer set ups unconnected pins and insertions */ |
3407 | w->connected = 1; | |
5ba06fc9 | 3408 | return w; |
2b97eabc | 3409 | } |
2b97eabc | 3410 | |
4ba1327a MB |
3411 | /** |
3412 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3413 | * @dapm: DAPM context |
4ba1327a MB |
3414 | * @widget: widget array |
3415 | * @num: number of widgets | |
3416 | * | |
3417 | * Creates new DAPM controls based upon the templates. | |
3418 | * | |
3419 | * Returns 0 for success else error. | |
3420 | */ | |
ce6120cc | 3421 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3422 | const struct snd_soc_dapm_widget *widget, |
3423 | int num) | |
3424 | { | |
5ba06fc9 MB |
3425 | struct snd_soc_dapm_widget *w; |
3426 | int i; | |
60884c27 | 3427 | int ret = 0; |
4ba1327a | 3428 | |
a73fb2df | 3429 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3430 | for (i = 0; i < num; i++) { |
02aa78ab | 3431 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
5ba06fc9 | 3432 | if (!w) { |
f7d41ae8 | 3433 | dev_err(dapm->dev, |
5ba06fc9 MB |
3434 | "ASoC: Failed to create DAPM control %s\n", |
3435 | widget->name); | |
60884c27 DC |
3436 | ret = -ENOMEM; |
3437 | break; | |
b8b33cb5 | 3438 | } |
4ba1327a MB |
3439 | widget++; |
3440 | } | |
a73fb2df | 3441 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3442 | return ret; |
4ba1327a MB |
3443 | } |
3444 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3445 | ||
c74184ed MB |
3446 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3447 | struct snd_kcontrol *kcontrol, int event) | |
3448 | { | |
3449 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3450 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3451 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3452 | struct snd_pcm_substream substream; |
9747cec2 | 3453 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3454 | u64 fmt; |
3455 | int ret; | |
3456 | ||
bf4edea8 | 3457 | if (WARN_ON(!config) || |
a3423b02 LPC |
3458 | WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || |
3459 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
bf4edea8 | 3460 | return -EINVAL; |
c74184ed MB |
3461 | |
3462 | /* We only support a single source and sink, pick the first */ | |
a3423b02 LPC |
3463 | source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], |
3464 | struct snd_soc_dapm_path, | |
3465 | list_node[SND_SOC_DAPM_DIR_OUT]); | |
3466 | sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], | |
3467 | struct snd_soc_dapm_path, | |
3468 | list_node[SND_SOC_DAPM_DIR_IN]); | |
c74184ed MB |
3469 | |
3470 | source = source_p->source->priv; | |
3471 | sink = sink_p->sink->priv; | |
3472 | ||
3473 | /* Be a little careful as we don't want to overflow the mask array */ | |
3474 | if (config->formats) { | |
3475 | fmt = ffs(config->formats) - 1; | |
3476 | } else { | |
30a6a1a4 | 3477 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3478 | config->formats); |
3479 | fmt = 0; | |
3480 | } | |
3481 | ||
3482 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3483 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3484 | if (!params) { | |
3485 | ret = -ENOMEM; | |
3486 | goto out; | |
3487 | } | |
3488 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3489 | |
9747cec2 | 3490 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3491 | config->rate_min; |
9747cec2 | 3492 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3493 | config->rate_max; |
3494 | ||
9747cec2 | 3495 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3496 | = config->channels_min; |
9747cec2 | 3497 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3498 | = config->channels_max; |
3499 | ||
3500 | memset(&substream, 0, sizeof(substream)); | |
3501 | ||
3502 | switch (event) { | |
3503 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a | 3504 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
9b8ef9f6 JK |
3505 | if (source->driver->ops && source->driver->ops->startup) { |
3506 | ret = source->driver->ops->startup(&substream, source); | |
3507 | if (ret < 0) { | |
3508 | dev_err(source->dev, | |
3509 | "ASoC: startup() failed: %d\n", ret); | |
3510 | goto out; | |
3511 | } | |
3512 | source->active++; | |
3513 | } | |
93e6958a BC |
3514 | ret = soc_dai_hw_params(&substream, params, source); |
3515 | if (ret < 0) | |
3516 | goto out; | |
c74184ed | 3517 | |
93e6958a | 3518 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
9b8ef9f6 JK |
3519 | if (sink->driver->ops && sink->driver->ops->startup) { |
3520 | ret = sink->driver->ops->startup(&substream, sink); | |
3521 | if (ret < 0) { | |
3522 | dev_err(sink->dev, | |
3523 | "ASoC: startup() failed: %d\n", ret); | |
3524 | goto out; | |
3525 | } | |
3526 | sink->active++; | |
3527 | } | |
93e6958a BC |
3528 | ret = soc_dai_hw_params(&substream, params, sink); |
3529 | if (ret < 0) | |
3530 | goto out; | |
c74184ed MB |
3531 | break; |
3532 | ||
3533 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3534 | ret = snd_soc_dai_digital_mute(sink, 0, |
3535 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3536 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3537 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3538 | ret = 0; |
c74184ed MB |
3539 | break; |
3540 | ||
3541 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3542 | ret = snd_soc_dai_digital_mute(sink, 1, |
3543 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3544 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3545 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3546 | ret = 0; |
9b8ef9f6 JK |
3547 | |
3548 | source->active--; | |
3549 | if (source->driver->ops && source->driver->ops->shutdown) { | |
3550 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3551 | source->driver->ops->shutdown(&substream, source); | |
3552 | } | |
3553 | ||
3554 | sink->active--; | |
3555 | if (sink->driver->ops && sink->driver->ops->shutdown) { | |
3556 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3557 | sink->driver->ops->shutdown(&substream, sink); | |
3558 | } | |
c74184ed MB |
3559 | break; |
3560 | ||
3561 | default: | |
a6ed0608 | 3562 | WARN(1, "Unknown event %d\n", event); |
75881df3 | 3563 | ret = -EINVAL; |
c74184ed MB |
3564 | } |
3565 | ||
9747cec2 MB |
3566 | out: |
3567 | kfree(params); | |
3568 | return ret; | |
c74184ed MB |
3569 | } |
3570 | ||
c6615082 NO |
3571 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3572 | struct snd_ctl_elem_value *ucontrol) | |
3573 | { | |
3574 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3575 | ||
741338f9 | 3576 | ucontrol->value.enumerated.item[0] = w->params_select; |
c6615082 NO |
3577 | |
3578 | return 0; | |
3579 | } | |
3580 | ||
3581 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3582 | struct snd_ctl_elem_value *ucontrol) | |
3583 | { | |
3584 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3585 | ||
3586 | /* Can't change the config when widget is already powered */ | |
3587 | if (w->power) | |
3588 | return -EBUSY; | |
3589 | ||
741338f9 | 3590 | if (ucontrol->value.enumerated.item[0] == w->params_select) |
c6615082 NO |
3591 | return 0; |
3592 | ||
741338f9 | 3593 | if (ucontrol->value.enumerated.item[0] >= w->num_params) |
c6615082 NO |
3594 | return -EINVAL; |
3595 | ||
741338f9 | 3596 | w->params_select = ucontrol->value.enumerated.item[0]; |
c6615082 NO |
3597 | |
3598 | return 0; | |
3599 | } | |
3600 | ||
c74184ed MB |
3601 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3602 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3603 | unsigned int num_params, |
c74184ed MB |
3604 | struct snd_soc_dapm_widget *source, |
3605 | struct snd_soc_dapm_widget *sink) | |
3606 | { | |
c74184ed MB |
3607 | struct snd_soc_dapm_widget template; |
3608 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3609 | char *link_name; |
c6615082 NO |
3610 | int ret, count; |
3611 | unsigned long private_value; | |
3612 | const char **w_param_text; | |
3613 | struct soc_enum w_param_enum[] = { | |
3614 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3615 | }; | |
3616 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3617 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3618 | snd_soc_dapm_dai_link_get, | |
3619 | snd_soc_dapm_dai_link_put), | |
3620 | }; | |
3621 | const struct snd_soc_pcm_stream *config = params; | |
3622 | ||
3623 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3624 | sizeof(char *), GFP_KERNEL); | |
3625 | if (!w_param_text) | |
c74184ed | 3626 | return -ENOMEM; |
c74184ed | 3627 | |
46172b6c CK |
3628 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3629 | source->name, sink->name); | |
c6615082 NO |
3630 | if (!link_name) { |
3631 | ret = -ENOMEM; | |
3632 | goto outfree_w_param; | |
3633 | } | |
c74184ed | 3634 | |
c6615082 NO |
3635 | for (count = 0 ; count < num_params; count++) { |
3636 | if (!config->stream_name) { | |
3637 | dev_warn(card->dapm.dev, | |
3638 | "ASoC: anonymous config %d for dai link %s\n", | |
3639 | count, link_name); | |
c6615082 | 3640 | w_param_text[count] = |
46172b6c CK |
3641 | devm_kasprintf(card->dev, GFP_KERNEL, |
3642 | "Anonymous Configuration %d", | |
3643 | count); | |
c6615082 NO |
3644 | if (!w_param_text[count]) { |
3645 | ret = -ENOMEM; | |
3646 | goto outfree_link_name; | |
3647 | } | |
c6615082 NO |
3648 | } else { |
3649 | w_param_text[count] = devm_kmemdup(card->dev, | |
3650 | config->stream_name, | |
3651 | strlen(config->stream_name) + 1, | |
3652 | GFP_KERNEL); | |
3653 | if (!w_param_text[count]) { | |
3654 | ret = -ENOMEM; | |
3655 | goto outfree_link_name; | |
3656 | } | |
3657 | } | |
3658 | config++; | |
3659 | } | |
3660 | w_param_enum[0].items = num_params; | |
3661 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3662 | |
3663 | memset(&template, 0, sizeof(template)); | |
3664 | template.reg = SND_SOC_NOPM; | |
3665 | template.id = snd_soc_dapm_dai_link; | |
3666 | template.name = link_name; | |
3667 | template.event = snd_soc_dai_link_event; | |
3668 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3669 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3670 | template.num_kcontrols = 1; |
3671 | /* duplicate w_param_enum on heap so that memory persists */ | |
3672 | private_value = | |
3673 | (unsigned long) devm_kmemdup(card->dev, | |
3674 | (void *)(kcontrol_dai_link[0].private_value), | |
3675 | sizeof(struct soc_enum), GFP_KERNEL); | |
3676 | if (!private_value) { | |
3677 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3678 | link_name); | |
3679 | ret = -ENOMEM; | |
3680 | goto outfree_link_name; | |
3681 | } | |
3682 | kcontrol_dai_link[0].private_value = private_value; | |
3683 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3684 | template.kcontrol_news = | |
3685 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3686 | sizeof(struct snd_kcontrol_new), | |
3687 | GFP_KERNEL); | |
3688 | if (!template.kcontrol_news) { | |
3689 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3690 | link_name); | |
3691 | ret = -ENOMEM; | |
3692 | goto outfree_private_value; | |
3693 | } | |
c74184ed | 3694 | |
30a6a1a4 | 3695 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3696 | |
02aa78ab | 3697 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
c74184ed | 3698 | if (!w) { |
30a6a1a4 | 3699 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3700 | link_name); |
c6615082 NO |
3701 | ret = -ENOMEM; |
3702 | goto outfree_kcontrol_news; | |
c74184ed MB |
3703 | } |
3704 | ||
3705 | w->params = params; | |
c6615082 | 3706 | w->num_params = num_params; |
c74184ed | 3707 | |
fe83897f LPC |
3708 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3709 | if (ret) | |
c6615082 | 3710 | goto outfree_w; |
fe83897f | 3711 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3712 | |
3713 | outfree_w: | |
3714 | devm_kfree(card->dev, w); | |
3715 | outfree_kcontrol_news: | |
3716 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3717 | outfree_private_value: | |
3718 | devm_kfree(card->dev, (void *)private_value); | |
3719 | outfree_link_name: | |
3720 | devm_kfree(card->dev, link_name); | |
3721 | outfree_w_param: | |
3722 | for (count = 0 ; count < num_params; count++) | |
3723 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3724 | devm_kfree(card->dev, w_param_text); | |
3725 | ||
3726 | return ret; | |
c74184ed MB |
3727 | } |
3728 | ||
888df395 MB |
3729 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3730 | struct snd_soc_dai *dai) | |
2b97eabc | 3731 | { |
888df395 | 3732 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3733 | struct snd_soc_dapm_widget *w; |
3734 | ||
888df395 MB |
3735 | WARN_ON(dapm->dev != dai->dev); |
3736 | ||
3737 | memset(&template, 0, sizeof(template)); | |
3738 | template.reg = SND_SOC_NOPM; | |
3739 | ||
3740 | if (dai->driver->playback.stream_name) { | |
4616274d | 3741 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3742 | template.name = dai->driver->playback.stream_name; |
3743 | template.sname = dai->driver->playback.stream_name; | |
3744 | ||
30a6a1a4 | 3745 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3746 | template.name); |
3747 | ||
02aa78ab | 3748 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3749 | if (!w) { |
30a6a1a4 | 3750 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3751 | dai->driver->playback.stream_name); |
298402a3 | 3752 | return -ENOMEM; |
888df395 MB |
3753 | } |
3754 | ||
3755 | w->priv = dai; | |
3756 | dai->playback_widget = w; | |
3757 | } | |
3758 | ||
3759 | if (dai->driver->capture.stream_name) { | |
4616274d | 3760 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3761 | template.name = dai->driver->capture.stream_name; |
3762 | template.sname = dai->driver->capture.stream_name; | |
3763 | ||
30a6a1a4 | 3764 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3765 | template.name); |
3766 | ||
02aa78ab | 3767 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3768 | if (!w) { |
30a6a1a4 | 3769 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3770 | dai->driver->capture.stream_name); |
298402a3 | 3771 | return -ENOMEM; |
888df395 MB |
3772 | } |
3773 | ||
3774 | w->priv = dai; | |
3775 | dai->capture_widget = w; | |
3776 | } | |
3777 | ||
3778 | return 0; | |
3779 | } | |
3780 | ||
3781 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3782 | { | |
3783 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3784 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3785 | struct snd_soc_dai *dai; |
888df395 MB |
3786 | |
3787 | /* For each DAI widget... */ | |
3788 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3789 | switch (dai_w->id) { |
3790 | case snd_soc_dapm_dai_in: | |
3791 | case snd_soc_dapm_dai_out: | |
3792 | break; | |
3793 | default: | |
2b97eabc | 3794 | continue; |
4616274d | 3795 | } |
888df395 MB |
3796 | |
3797 | dai = dai_w->priv; | |
3798 | ||
3799 | /* ...find all widgets with the same stream and link them */ | |
3800 | list_for_each_entry(w, &card->widgets, list) { | |
3801 | if (w->dapm != dai_w->dapm) | |
3802 | continue; | |
3803 | ||
4616274d MB |
3804 | switch (w->id) { |
3805 | case snd_soc_dapm_dai_in: | |
3806 | case snd_soc_dapm_dai_out: | |
888df395 | 3807 | continue; |
4616274d MB |
3808 | default: |
3809 | break; | |
3810 | } | |
888df395 | 3811 | |
a798c24a | 3812 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
3813 | continue; |
3814 | ||
0f9bd7b1 LPC |
3815 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3816 | src = dai_w; | |
3817 | sink = w; | |
3818 | } else { | |
3819 | src = w; | |
3820 | sink = dai_w; | |
2b97eabc | 3821 | } |
0f9bd7b1 LPC |
3822 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3823 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3824 | } |
3825 | } | |
2b97eabc | 3826 | |
888df395 MB |
3827 | return 0; |
3828 | } | |
64a648c2 | 3829 | |
44ba2641 BC |
3830 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3831 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3832 | { |
44ba2641 | 3833 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3834 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3835 | int i; |
3836 | ||
44ba2641 BC |
3837 | for (i = 0; i < rtd->num_codecs; i++) { |
3838 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f | 3839 | |
b893ea5f LG |
3840 | /* connect BE DAI playback if widgets are valid */ |
3841 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3842 | source = cpu_dai->playback_widget; |
3843 | sink = codec_dai->playback_widget; | |
b893ea5f | 3844 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3845 | cpu_dai->component->name, source->name, |
3846 | codec_dai->component->name, sink->name); | |
b893ea5f | 3847 | |
9887c20b LPC |
3848 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3849 | NULL, NULL); | |
b893ea5f LG |
3850 | } |
3851 | ||
3852 | /* connect BE DAI capture if widgets are valid */ | |
3853 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3854 | source = codec_dai->capture_widget; |
3855 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3856 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3857 | codec_dai->component->name, source->name, |
3858 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3859 | |
9887c20b LPC |
3860 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3861 | NULL, NULL); | |
b893ea5f | 3862 | } |
b893ea5f LG |
3863 | } |
3864 | } | |
3865 | ||
c471fdd1 | 3866 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3867 | int event) |
2b97eabc | 3868 | { |
c471fdd1 | 3869 | struct snd_soc_dapm_widget *w; |
a3423b02 | 3870 | unsigned int ep; |
7bd3a6f3 | 3871 | |
c471fdd1 LPC |
3872 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3873 | w = dai->playback_widget; | |
3874 | else | |
3875 | w = dai->capture_widget; | |
fe360685 | 3876 | |
c471fdd1 LPC |
3877 | if (w) { |
3878 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 3879 | |
a3423b02 LPC |
3880 | if (w->id == snd_soc_dapm_dai_in) { |
3881 | ep = SND_SOC_DAPM_EP_SOURCE; | |
3882 | dapm_widget_invalidate_input_paths(w); | |
3883 | } else { | |
3884 | ep = SND_SOC_DAPM_EP_SINK; | |
3885 | dapm_widget_invalidate_output_paths(w); | |
3886 | } | |
3887 | ||
d9b0951b LG |
3888 | switch (event) { |
3889 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3890 | w->active = 1; |
a3423b02 | 3891 | w->is_ep = ep; |
d9b0951b LG |
3892 | break; |
3893 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3894 | w->active = 0; |
a3423b02 | 3895 | w->is_ep = 0; |
d9b0951b LG |
3896 | break; |
3897 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3898 | case SND_SOC_DAPM_STREAM_RESUME: | |
3899 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3900 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3901 | break; | |
3902 | } | |
3903 | } | |
c471fdd1 | 3904 | } |
d9b0951b | 3905 | |
44ba2641 BC |
3906 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3907 | { | |
1a497983 | 3908 | struct snd_soc_pcm_runtime *rtd; |
44ba2641 BC |
3909 | |
3910 | /* for each BE DAI link... */ | |
1a497983 | 3911 | list_for_each_entry(rtd, &card->rtd_list, list) { |
44ba2641 BC |
3912 | /* |
3913 | * dynamic FE links have no fixed DAI mapping. | |
3914 | * CODEC<->CODEC links have no direct connection. | |
3915 | */ | |
3916 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3917 | continue; | |
3918 | ||
3919 | dapm_connect_dai_link_widgets(card, rtd); | |
3920 | } | |
3921 | } | |
3922 | ||
c471fdd1 LPC |
3923 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3924 | int event) | |
3925 | { | |
44ba2641 BC |
3926 | int i; |
3927 | ||
c471fdd1 | 3928 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3929 | for (i = 0; i < rtd->num_codecs; i++) |
3930 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3931 | |
95dd5cd6 | 3932 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3933 | } |
3934 | ||
3935 | /** | |
3936 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3937 | * @rtd: PCM runtime data | |
3938 | * @stream: stream name | |
3939 | * @event: stream event | |
3940 | * | |
3941 | * Sends a stream event to the dapm core. The core then makes any | |
3942 | * necessary widget power changes. | |
3943 | * | |
3944 | * Returns 0 for success else error. | |
3945 | */ | |
d9b0951b LG |
3946 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3947 | int event) | |
ce6120cc | 3948 | { |
a73fb2df | 3949 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3950 | |
3cd04343 | 3951 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3952 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3953 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3954 | } |
2b97eabc | 3955 | |
11391100 CK |
3956 | /** |
3957 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3958 | * @dapm: DAPM context | |
3959 | * @pin: pin name | |
3960 | * | |
3961 | * Enables input/output pin and its parents or children widgets iff there is | |
3962 | * a valid audio route and active audio stream. | |
3963 | * | |
3964 | * Requires external locking. | |
3965 | * | |
3966 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3967 | * do any widget power switching. | |
3968 | */ | |
3969 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3970 | const char *pin) | |
3971 | { | |
3972 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3973 | } | |
3974 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3975 | ||
2b97eabc | 3976 | /** |
a5302181 | 3977 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3978 | * @dapm: DAPM context |
a5302181 | 3979 | * @pin: pin name |
2b97eabc | 3980 | * |
74b8f955 | 3981 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3982 | * a valid audio route and active audio stream. |
11391100 | 3983 | * |
a5302181 LG |
3984 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3985 | * do any widget power switching. | |
2b97eabc | 3986 | */ |
ce6120cc | 3987 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3988 | { |
11391100 CK |
3989 | int ret; |
3990 | ||
3991 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3992 | ||
3993 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3994 | ||
3995 | mutex_unlock(&dapm->card->dapm_mutex); | |
3996 | ||
3997 | return ret; | |
a5302181 LG |
3998 | } |
3999 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 4000 | |
da34183e | 4001 | /** |
11391100 | 4002 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4003 | * @dapm: DAPM context |
da34183e MB |
4004 | * @pin: pin name |
4005 | * | |
4006 | * Enables input/output pin regardless of any other state. This is | |
4007 | * intended for use with microphone bias supplies used in microphone | |
4008 | * jack detection. | |
4009 | * | |
11391100 CK |
4010 | * Requires external locking. |
4011 | * | |
da34183e MB |
4012 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4013 | * do any widget power switching. | |
4014 | */ | |
11391100 CK |
4015 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4016 | const char *pin) | |
da34183e | 4017 | { |
91a5fca4 | 4018 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4019 | |
91a5fca4 | 4020 | if (!w) { |
30a6a1a4 | 4021 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4022 | return -EINVAL; |
0d86733c MB |
4023 | } |
4024 | ||
30a6a1a4 | 4025 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4026 | if (!w->connected) { |
4027 | /* | |
4028 | * w->force does not affect the number of input or output paths, | |
4029 | * so we only have to recheck if w->connected is changed | |
4030 | */ | |
4031 | dapm_widget_invalidate_input_paths(w); | |
4032 | dapm_widget_invalidate_output_paths(w); | |
4033 | w->connected = 1; | |
4034 | } | |
91a5fca4 | 4035 | w->force = 1; |
75c1f891 | 4036 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4037 | |
91a5fca4 | 4038 | return 0; |
da34183e | 4039 | } |
11391100 CK |
4040 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4041 | ||
4042 | /** | |
4043 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4044 | * @dapm: DAPM context | |
4045 | * @pin: pin name | |
4046 | * | |
4047 | * Enables input/output pin regardless of any other state. This is | |
4048 | * intended for use with microphone bias supplies used in microphone | |
4049 | * jack detection. | |
4050 | * | |
4051 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4052 | * do any widget power switching. | |
4053 | */ | |
4054 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4055 | const char *pin) | |
4056 | { | |
4057 | int ret; | |
4058 | ||
4059 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4060 | ||
4061 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4062 | ||
4063 | mutex_unlock(&dapm->card->dapm_mutex); | |
4064 | ||
4065 | return ret; | |
4066 | } | |
da34183e MB |
4067 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4068 | ||
11391100 CK |
4069 | /** |
4070 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4071 | * @dapm: DAPM context | |
4072 | * @pin: pin name | |
4073 | * | |
4074 | * Disables input/output pin and its parents or children widgets. | |
4075 | * | |
4076 | * Requires external locking. | |
4077 | * | |
4078 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4079 | * do any widget power switching. | |
4080 | */ | |
4081 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4082 | const char *pin) | |
4083 | { | |
4084 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4085 | } | |
4086 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4087 | ||
a5302181 LG |
4088 | /** |
4089 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4090 | * @dapm: DAPM context |
a5302181 LG |
4091 | * @pin: pin name |
4092 | * | |
74b8f955 | 4093 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4094 | * |
a5302181 LG |
4095 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4096 | * do any widget power switching. | |
4097 | */ | |
ce6120cc LG |
4098 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4099 | const char *pin) | |
a5302181 | 4100 | { |
11391100 CK |
4101 | int ret; |
4102 | ||
4103 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4104 | ||
4105 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4106 | ||
4107 | mutex_unlock(&dapm->card->dapm_mutex); | |
4108 | ||
4109 | return ret; | |
2b97eabc | 4110 | } |
a5302181 | 4111 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4112 | |
11391100 CK |
4113 | /** |
4114 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4115 | * @dapm: DAPM context | |
4116 | * @pin: pin name | |
4117 | * | |
4118 | * Marks the specified pin as being not connected, disabling it along | |
4119 | * any parent or child widgets. At present this is identical to | |
4120 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4121 | * additional things such as disabling controls which only affect | |
4122 | * paths through the pin. | |
4123 | * | |
4124 | * Requires external locking. | |
4125 | * | |
4126 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4127 | * do any widget power switching. | |
4128 | */ | |
4129 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4130 | const char *pin) | |
4131 | { | |
4132 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4133 | } | |
4134 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4135 | ||
5817b52a MB |
4136 | /** |
4137 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4138 | * @dapm: DAPM context |
5817b52a MB |
4139 | * @pin: pin name |
4140 | * | |
4141 | * Marks the specified pin as being not connected, disabling it along | |
4142 | * any parent or child widgets. At present this is identical to | |
4143 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4144 | * additional things such as disabling controls which only affect | |
4145 | * paths through the pin. | |
4146 | * | |
4147 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4148 | * do any widget power switching. | |
4149 | */ | |
ce6120cc | 4150 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4151 | { |
11391100 CK |
4152 | int ret; |
4153 | ||
4154 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4155 | ||
4156 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4157 | ||
4158 | mutex_unlock(&dapm->card->dapm_mutex); | |
4159 | ||
4160 | return ret; | |
5817b52a MB |
4161 | } |
4162 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4163 | ||
eeec12bf | 4164 | /** |
a5302181 | 4165 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4166 | * @dapm: DAPM context |
a5302181 | 4167 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4168 | * |
a5302181 | 4169 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4170 | * |
a5302181 | 4171 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4172 | */ |
ce6120cc LG |
4173 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4174 | const char *pin) | |
eeec12bf | 4175 | { |
91a5fca4 | 4176 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4177 | |
91a5fca4 LPC |
4178 | if (w) |
4179 | return w->connected; | |
a68b38ad | 4180 | |
eeec12bf GG |
4181 | return 0; |
4182 | } | |
a5302181 | 4183 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4184 | |
1547aba9 MB |
4185 | /** |
4186 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4187 | * @dapm: DAPM context |
1547aba9 MB |
4188 | * @pin: audio signal pin endpoint (or start point) |
4189 | * | |
4190 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4191 | * system is disabled a path between two endpoints flagged as ignoring | |
4192 | * suspend will not be disabled. The path must already be enabled via | |
4193 | * normal means at suspend time, it will not be turned on if it was not | |
4194 | * already enabled. | |
4195 | */ | |
ce6120cc LG |
4196 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4197 | const char *pin) | |
1547aba9 | 4198 | { |
91a5fca4 | 4199 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4200 | |
91a5fca4 | 4201 | if (!w) { |
30a6a1a4 | 4202 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4203 | return -EINVAL; |
1547aba9 MB |
4204 | } |
4205 | ||
91a5fca4 LPC |
4206 | w->ignore_suspend = 1; |
4207 | ||
4208 | return 0; | |
1547aba9 MB |
4209 | } |
4210 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4211 | ||
2b97eabc RP |
4212 | /** |
4213 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4214 | * @dapm: DAPM context |
2b97eabc RP |
4215 | * |
4216 | * Free all dapm widgets and resources. | |
4217 | */ | |
ce6120cc | 4218 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4219 | { |
6c45e126 | 4220 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4221 | dapm_free_widgets(dapm); |
7be31be8 | 4222 | list_del(&dapm->list); |
2b97eabc RP |
4223 | } |
4224 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4225 | ||
57996358 | 4226 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4227 | { |
01005a72 | 4228 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4229 | struct snd_soc_dapm_widget *w; |
4230 | LIST_HEAD(down_list); | |
4231 | int powerdown = 0; | |
4232 | ||
01005a72 LG |
4233 | mutex_lock(&card->dapm_mutex); |
4234 | ||
97c866de JN |
4235 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4236 | if (w->dapm != dapm) | |
4237 | continue; | |
51737470 | 4238 | if (w->power) { |
828a842f | 4239 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4240 | w->power = 0; |
51737470 MB |
4241 | powerdown = 1; |
4242 | } | |
4243 | } | |
4244 | ||
4245 | /* If there were no widgets to power down we're already in | |
4246 | * standby. | |
4247 | */ | |
4248 | if (powerdown) { | |
7679e42e MB |
4249 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4250 | snd_soc_dapm_set_bias_level(dapm, | |
4251 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4252 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4253 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4254 | snd_soc_dapm_set_bias_level(dapm, | |
4255 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4256 | } |
01005a72 LG |
4257 | |
4258 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4259 | } |
4260 | ||
4261 | /* | |
4262 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4263 | */ | |
4264 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4265 | { | |
57996358 | 4266 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4267 | |
57996358 | 4268 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4269 | if (dapm != &card->dapm) { |
4270 | soc_dapm_shutdown_dapm(dapm); | |
4271 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4272 | snd_soc_dapm_set_bias_level(dapm, | |
4273 | SND_SOC_BIAS_OFF); | |
4274 | } | |
ce6120cc | 4275 | } |
17282ba4 XX |
4276 | |
4277 | soc_dapm_shutdown_dapm(&card->dapm); | |
4278 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4279 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4280 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4281 | } |
4282 | ||
2b97eabc | 4283 | /* Module information */ |
d331124d | 4284 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4285 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4286 | MODULE_LICENSE("GPL"); |