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); |
de415c81 LW |
361 | if (IS_ERR(data->widget)) { |
362 | ret = PTR_ERR(data->widget); | |
363 | goto err_data; | |
364 | } | |
57295073 | 365 | if (!data->widget) { |
773da9b3 | 366 | ret = -ENOMEM; |
e18077b6 | 367 | goto err_data; |
57295073 LPC |
368 | } |
369 | } | |
370 | break; | |
d714f97c | 371 | case snd_soc_dapm_demux: |
561ed680 CK |
372 | case snd_soc_dapm_mux: |
373 | e = (struct soc_enum *)kcontrol->private_value; | |
374 | ||
375 | if (e->autodisable) { | |
376 | struct snd_soc_dapm_widget template; | |
377 | ||
41d80025 | 378 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
561ed680 CK |
379 | "Autodisable"); |
380 | if (!name) { | |
381 | ret = -ENOMEM; | |
382 | goto err_data; | |
383 | } | |
384 | ||
385 | memset(&template, 0, sizeof(template)); | |
386 | template.reg = e->reg; | |
387 | template.mask = e->mask << e->shift_l; | |
388 | template.shift = e->shift_l; | |
389 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
390 | template.on_val = template.off_val; | |
391 | template.id = snd_soc_dapm_kcontrol; | |
392 | template.name = name; | |
393 | ||
394 | data->value = template.on_val; | |
395 | ||
ffacb48e CK |
396 | data->widget = snd_soc_dapm_new_control_unlocked( |
397 | widget->dapm, &template); | |
e18077b6 | 398 | kfree(name); |
de415c81 LW |
399 | if (IS_ERR(data->widget)) { |
400 | ret = PTR_ERR(data->widget); | |
401 | goto err_data; | |
402 | } | |
561ed680 CK |
403 | if (!data->widget) { |
404 | ret = -ENOMEM; | |
e18077b6 | 405 | goto err_data; |
561ed680 CK |
406 | } |
407 | ||
408 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
409 | widget, NULL, NULL); | |
410 | } | |
411 | break; | |
57295073 LPC |
412 | default: |
413 | break; | |
414 | } | |
415 | ||
e84357f7 LPC |
416 | kcontrol->private_data = data; |
417 | ||
418 | return 0; | |
773da9b3 | 419 | |
773da9b3 CK |
420 | err_data: |
421 | kfree(data); | |
422 | return ret; | |
e84357f7 LPC |
423 | } |
424 | ||
425 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
426 | { | |
427 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
1a1b2790 SK |
428 | |
429 | list_del(&data->paths); | |
2c75bdf3 | 430 | kfree(data->wlist); |
e84357f7 LPC |
431 | kfree(data); |
432 | } | |
433 | ||
434 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
435 | const struct snd_kcontrol *kcontrol) | |
436 | { | |
437 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
438 | ||
2c75bdf3 | 439 | return data->wlist; |
e84357f7 LPC |
440 | } |
441 | ||
442 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
443 | struct snd_soc_dapm_widget *widget) | |
444 | { | |
445 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
446 | struct snd_soc_dapm_widget_list *new_wlist; |
447 | unsigned int n; | |
e84357f7 | 448 | |
2c75bdf3 LPC |
449 | if (data->wlist) |
450 | n = data->wlist->num_widgets + 1; | |
451 | else | |
452 | n = 1; | |
453 | ||
454 | new_wlist = krealloc(data->wlist, | |
455 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
456 | if (!new_wlist) | |
e84357f7 LPC |
457 | return -ENOMEM; |
458 | ||
2c75bdf3 LPC |
459 | new_wlist->widgets[n - 1] = widget; |
460 | new_wlist->num_widgets = n; | |
e84357f7 | 461 | |
2c75bdf3 | 462 | data->wlist = new_wlist; |
e84357f7 LPC |
463 | |
464 | return 0; | |
465 | } | |
466 | ||
5106b92f LPC |
467 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
468 | struct snd_soc_dapm_path *path) | |
469 | { | |
470 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
471 | ||
472 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
473 | } |
474 | ||
475 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
476 | { | |
477 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
478 | ||
479 | if (!data->widget) | |
480 | return true; | |
481 | ||
482 | return data->widget->power; | |
5106b92f LPC |
483 | } |
484 | ||
485 | static struct list_head *dapm_kcontrol_get_path_list( | |
486 | const struct snd_kcontrol *kcontrol) | |
487 | { | |
488 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
489 | ||
490 | return &data->paths; | |
491 | } | |
492 | ||
493 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
494 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
495 | list_kcontrol) | |
496 | ||
5dc0158a | 497 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
498 | { |
499 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
500 | ||
501 | return data->value; | |
502 | } | |
5dc0158a | 503 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
504 | |
505 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
506 | unsigned int value) | |
507 | { | |
508 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
509 | ||
510 | if (data->value == value) | |
511 | return false; | |
512 | ||
57295073 LPC |
513 | if (data->widget) |
514 | data->widget->on_val = value; | |
515 | ||
cf7c1de2 LPC |
516 | data->value = value; |
517 | ||
518 | return true; | |
519 | } | |
520 | ||
93e39a11 M |
521 | /** |
522 | * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a | |
523 | * kcontrol | |
524 | * @kcontrol: The kcontrol | |
525 | */ | |
526 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( | |
527 | struct snd_kcontrol *kcontrol) | |
528 | { | |
529 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; | |
530 | } | |
531 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); | |
532 | ||
ce0fc93a LPC |
533 | /** |
534 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
535 | * kcontrol | |
536 | * @kcontrol: The kcontrol | |
537 | * | |
538 | * Note: This function must only be used on kcontrols that are known to have | |
539 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
540 | */ | |
541 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
542 | struct snd_kcontrol *kcontrol) | |
543 | { | |
544 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
545 | } | |
546 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
547 | ||
6c120e19 LG |
548 | static void dapm_reset(struct snd_soc_card *card) |
549 | { | |
550 | struct snd_soc_dapm_widget *w; | |
551 | ||
f9fa2b18 MB |
552 | lockdep_assert_held(&card->dapm_mutex); |
553 | ||
6c120e19 LG |
554 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
555 | ||
556 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 557 | w->new_power = w->power; |
6c120e19 | 558 | w->power_checked = false; |
6c120e19 LG |
559 | } |
560 | } | |
561 | ||
94f99c87 LPC |
562 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
563 | { | |
564 | if (!dapm->component) | |
565 | return NULL; | |
566 | return dapm->component->name_prefix; | |
567 | } | |
568 | ||
ce0fc93a | 569 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 570 | unsigned int *value) |
0445bdf4 | 571 | { |
ce0fc93a | 572 | if (!dapm->component) |
e2c330b9 | 573 | return -EIO; |
ce0fc93a | 574 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
575 | } |
576 | ||
ce0fc93a | 577 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 578 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 579 | { |
ce0fc93a | 580 | if (!dapm->component) |
e2c330b9 | 581 | return -EIO; |
fcf6c5ea MB |
582 | return snd_soc_component_update_bits(dapm->component, reg, |
583 | mask, value); | |
49575fb5 LG |
584 | } |
585 | ||
ce0fc93a LPC |
586 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
587 | int reg, unsigned int mask, unsigned int value) | |
588 | { | |
589 | if (!dapm->component) | |
590 | return -EIO; | |
591 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
592 | } | |
593 | ||
eb270e98 MB |
594 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
595 | { | |
e2c330b9 LPC |
596 | if (dapm->component) |
597 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
598 | } |
599 | ||
45a110a1 CK |
600 | static struct snd_soc_dapm_widget * |
601 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
602 | { | |
603 | struct snd_soc_dapm_widget *w = wcache->widget; | |
604 | struct list_head *wlist; | |
605 | const int depth = 2; | |
606 | int i = 0; | |
607 | ||
608 | if (w) { | |
609 | wlist = &w->dapm->card->widgets; | |
610 | ||
611 | list_for_each_entry_from(w, wlist, list) { | |
612 | if (!strcmp(name, w->name)) | |
613 | return w; | |
614 | ||
615 | if (++i == depth) | |
616 | break; | |
617 | } | |
618 | } | |
619 | ||
620 | return NULL; | |
621 | } | |
622 | ||
623 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
624 | struct snd_soc_dapm_widget *w) | |
625 | { | |
626 | wcache->widget = w; | |
627 | } | |
628 | ||
fa880775 LPC |
629 | /** |
630 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
631 | * @dapm: The DAPM context for which to set the level | |
632 | * @level: The level to set | |
633 | * | |
634 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
635 | * callback of DAPM context with the specified level. This will even happen if | |
636 | * the context is already at the same level. Furthermore it will not go through | |
637 | * the normal bias level sequencing, meaning any intermediate states between the | |
638 | * current and the target state will not be entered. | |
639 | * | |
640 | * Note that the change in bias level is only temporary and the next time | |
641 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
642 | * determined by the DAPM core. The function is mainly intended to be used to | |
643 | * used during probe or resume from suspend to power up the device so | |
644 | * initialization can be done, before the DAPM core takes over. | |
645 | */ | |
646 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
647 | enum snd_soc_bias_level level) | |
648 | { | |
649 | int ret = 0; | |
650 | ||
651 | if (dapm->set_bias_level) | |
652 | ret = dapm->set_bias_level(dapm, level); | |
653 | ||
f4bf8d77 LPC |
654 | if (ret == 0) |
655 | dapm->bias_level = level; | |
656 | ||
fa880775 LPC |
657 | return ret; |
658 | } | |
659 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
660 | ||
452c5eaa MB |
661 | /** |
662 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 663 | * @dapm: DAPM context |
452c5eaa MB |
664 | * @level: level to configure |
665 | * | |
666 | * Configure the bias (power) levels for the SoC audio device. | |
667 | * | |
668 | * Returns 0 for success else error. | |
669 | */ | |
ed5a4c47 | 670 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 671 | enum snd_soc_bias_level level) |
452c5eaa | 672 | { |
ed5a4c47 | 673 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
674 | int ret = 0; |
675 | ||
84e90930 MB |
676 | trace_snd_soc_bias_level_start(card, level); |
677 | ||
f0fba2ad | 678 | if (card && card->set_bias_level) |
d4c6005f | 679 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
680 | if (ret != 0) |
681 | goto out; | |
682 | ||
fa880775 LPC |
683 | if (!card || dapm != &card->dapm) |
684 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 685 | |
171ec6b0 MB |
686 | if (ret != 0) |
687 | goto out; | |
688 | ||
689 | if (card && card->set_bias_level_post) | |
d4c6005f | 690 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 691 | out: |
84e90930 MB |
692 | trace_snd_soc_bias_level_done(card, level); |
693 | ||
452c5eaa MB |
694 | return ret; |
695 | } | |
696 | ||
74b8f955 | 697 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 698 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
699 | struct snd_soc_dapm_path *path, const char *control_name, |
700 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 701 | { |
d714f97c | 702 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 703 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 704 | unsigned int val, item; |
2b97eabc | 705 | int i; |
24ff33ac | 706 | |
234c0b8f | 707 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 708 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
709 | val = (val >> e->shift_l) & e->mask; |
710 | item = snd_soc_enum_val_to_item(e, val); | |
711 | } else { | |
24ff33ac DP |
712 | /* since a virtual mux has no backing registers to |
713 | * decide which path to connect, it will try to match | |
714 | * with the first enumeration. This is to ensure | |
715 | * that the default mux choice (the first) will be | |
716 | * correctly powered up during initialization. | |
717 | */ | |
234c0b8f | 718 | item = 0; |
24ff33ac | 719 | } |
2e72f8e3 | 720 | |
9a8d38db | 721 | for (i = 0; i < e->items; i++) { |
2b97eabc | 722 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 723 | path->name = e->texts[i]; |
234c0b8f LPC |
724 | if (i == item) |
725 | path->connect = 1; | |
726 | else | |
727 | path->connect = 0; | |
2b97eabc RP |
728 | return 0; |
729 | } | |
730 | } | |
731 | ||
732 | return -ENODEV; | |
733 | } | |
734 | ||
234c0b8f | 735 | /* set up initial codec paths */ |
5fe5b767 | 736 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
737 | { |
738 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 739 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
740 | unsigned int reg = mc->reg; |
741 | unsigned int shift = mc->shift; | |
742 | unsigned int max = mc->max; | |
743 | unsigned int mask = (1 << fls(max)) - 1; | |
744 | unsigned int invert = mc->invert; | |
745 | unsigned int val; | |
746 | ||
747 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 748 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
749 | val = (val >> shift) & mask; |
750 | if (invert) | |
751 | val = max - val; | |
752 | p->connect = !!val; | |
753 | } else { | |
754 | p->connect = 0; | |
755 | } | |
756 | } | |
757 | ||
74b8f955 | 758 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 759 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
760 | struct snd_soc_dapm_path *path, const char *control_name) |
761 | { | |
762 | int i; | |
763 | ||
764 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
765 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
766 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
767 | path->name = path->sink->kcontrol_news[i].name; | |
768 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
769 | return 0; |
770 | } | |
771 | } | |
772 | return -ENODEV; | |
773 | } | |
774 | ||
af46800b | 775 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 776 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
777 | const struct snd_kcontrol_new *kcontrol_new, |
778 | struct snd_kcontrol **kcontrol) | |
779 | { | |
780 | struct snd_soc_dapm_widget *w; | |
781 | int i; | |
782 | ||
783 | *kcontrol = NULL; | |
784 | ||
785 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
786 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
787 | continue; | |
af46800b SW |
788 | for (i = 0; i < w->num_kcontrols; i++) { |
789 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
790 | if (w->kcontrols) | |
791 | *kcontrol = w->kcontrols[i]; | |
792 | return 1; | |
793 | } | |
794 | } | |
795 | } | |
796 | ||
797 | return 0; | |
798 | } | |
799 | ||
85762e71 SW |
800 | /* |
801 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
802 | * create it. Either way, add the widget into the control's widget list | |
803 | */ | |
19a2557b | 804 | static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, |
946d92a1 | 805 | int kci) |
2b97eabc | 806 | { |
4b80b8c2 | 807 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 808 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 809 | const char *prefix; |
85762e71 SW |
810 | size_t prefix_len; |
811 | int shared; | |
812 | struct snd_kcontrol *kcontrol; | |
85762e71 | 813 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 814 | char *long_name = NULL; |
85762e71 | 815 | const char *name; |
e5092c96 | 816 | int ret = 0; |
efb7ac3f | 817 | |
94f99c87 | 818 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
819 | if (prefix) |
820 | prefix_len = strlen(prefix) + 1; | |
821 | else | |
822 | prefix_len = 0; | |
823 | ||
85762e71 SW |
824 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
825 | &kcontrol); | |
2b97eabc | 826 | |
85762e71 SW |
827 | if (!kcontrol) { |
828 | if (shared) { | |
829 | wname_in_long_name = false; | |
830 | kcname_in_long_name = true; | |
831 | } else { | |
832 | switch (w->id) { | |
833 | case snd_soc_dapm_switch: | |
834 | case snd_soc_dapm_mixer: | |
19a2557b | 835 | case snd_soc_dapm_pga: |
a3930ed0 | 836 | case snd_soc_dapm_out_drv: |
85762e71 SW |
837 | wname_in_long_name = true; |
838 | kcname_in_long_name = true; | |
839 | break; | |
840 | case snd_soc_dapm_mixer_named_ctl: | |
841 | wname_in_long_name = false; | |
842 | kcname_in_long_name = true; | |
843 | break; | |
d714f97c | 844 | case snd_soc_dapm_demux: |
85762e71 | 845 | case snd_soc_dapm_mux: |
85762e71 SW |
846 | wname_in_long_name = true; |
847 | kcname_in_long_name = false; | |
848 | break; | |
849 | default: | |
85762e71 | 850 | return -EINVAL; |
82cd8764 | 851 | } |
85762e71 SW |
852 | } |
853 | ||
854 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
855 | /* |
856 | * The control will get a prefix from the control | |
857 | * creation process but we're also using the same | |
858 | * prefix for widgets so cut the prefix off the | |
859 | * front of the widget name. | |
ca9c1aae | 860 | */ |
2b581074 | 861 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
862 | w->name + prefix_len, |
863 | w->kcontrol_news[kci].name); | |
e84357f7 | 864 | if (long_name == NULL) |
2b581074 | 865 | return -ENOMEM; |
85762e71 SW |
866 | |
867 | name = long_name; | |
868 | } else if (wname_in_long_name) { | |
869 | long_name = NULL; | |
870 | name = w->name + prefix_len; | |
871 | } else { | |
872 | long_name = NULL; | |
873 | name = w->kcontrol_news[kci].name; | |
874 | } | |
ca9c1aae | 875 | |
e84357f7 | 876 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 877 | prefix); |
e5092c96 DM |
878 | if (!kcontrol) { |
879 | ret = -ENOMEM; | |
880 | goto exit_free; | |
881 | } | |
882 | ||
9356e9d5 | 883 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 | 884 | |
41d80025 | 885 | ret = dapm_kcontrol_data_alloc(w, kcontrol, name); |
e84357f7 LPC |
886 | if (ret) { |
887 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 888 | goto exit_free; |
e84357f7 LPC |
889 | } |
890 | ||
85762e71 SW |
891 | ret = snd_ctl_add(card, kcontrol); |
892 | if (ret < 0) { | |
893 | dev_err(dapm->dev, | |
894 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
895 | w->name, name, ret); | |
e5092c96 | 896 | goto exit_free; |
85762e71 | 897 | } |
85762e71 | 898 | } |
2b97eabc | 899 | |
2c75bdf3 | 900 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
901 | if (ret == 0) |
902 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 903 | |
e5092c96 DM |
904 | exit_free: |
905 | kfree(long_name); | |
ca9c1aae | 906 | |
e5092c96 | 907 | return ret; |
85762e71 | 908 | } |
219b93f5 | 909 | |
85762e71 SW |
910 | /* create new dapm mixer control */ |
911 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
912 | { | |
913 | int i, ret; | |
914 | struct snd_soc_dapm_path *path; | |
561ed680 | 915 | struct dapm_kcontrol_data *data; |
85762e71 SW |
916 | |
917 | /* add kcontrol */ | |
918 | for (i = 0; i < w->num_kcontrols; i++) { | |
919 | /* match name */ | |
e63bfd45 | 920 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
921 | /* mixer/mux paths name must match control name */ |
922 | if (path->name != (char *)w->kcontrol_news[i].name) | |
923 | continue; | |
924 | ||
561ed680 | 925 | if (!w->kcontrols[i]) { |
19a2557b | 926 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
927 | if (ret < 0) |
928 | return ret; | |
2b97eabc | 929 | } |
85762e71 | 930 | |
946d92a1 | 931 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
932 | |
933 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
934 | if (data->widget) | |
935 | snd_soc_dapm_add_path(data->widget->dapm, | |
936 | data->widget, | |
937 | path->source, | |
938 | NULL, NULL); | |
2b97eabc RP |
939 | } |
940 | } | |
85762e71 SW |
941 | |
942 | return 0; | |
2b97eabc RP |
943 | } |
944 | ||
945 | /* create new dapm mux control */ | |
4b80b8c2 | 946 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 947 | { |
4b80b8c2 | 948 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 949 | enum snd_soc_dapm_direction dir; |
85762e71 | 950 | struct snd_soc_dapm_path *path; |
d714f97c | 951 | const char *type; |
af46800b | 952 | int ret; |
2b97eabc | 953 | |
d714f97c LPC |
954 | switch (w->id) { |
955 | case snd_soc_dapm_mux: | |
a3423b02 | 956 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
957 | type = "mux"; |
958 | break; | |
959 | case snd_soc_dapm_demux: | |
a3423b02 | 960 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
961 | type = "demux"; |
962 | break; | |
963 | default: | |
964 | return -EINVAL; | |
965 | } | |
966 | ||
af46800b SW |
967 | if (w->num_kcontrols != 1) { |
968 | dev_err(dapm->dev, | |
d714f97c | 969 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 970 | w->name); |
2b97eabc RP |
971 | return -EINVAL; |
972 | } | |
973 | ||
a3423b02 | 974 | if (list_empty(&w->edges[dir])) { |
d714f97c | 975 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 976 | return -EINVAL; |
af46800b | 977 | } |
ce6120cc | 978 | |
19a2557b | 979 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
980 | if (ret < 0) |
981 | return ret; | |
fad59888 | 982 | |
a3423b02 LPC |
983 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
984 | if (path->name) | |
985 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 986 | } |
2b97eabc | 987 | |
af46800b | 988 | return 0; |
2b97eabc RP |
989 | } |
990 | ||
991 | /* create new dapm volume control */ | |
4b80b8c2 | 992 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 993 | { |
19a2557b JK |
994 | int i, ret; |
995 | ||
996 | for (i = 0; i < w->num_kcontrols; i++) { | |
997 | ret = dapm_create_or_share_kcontrol(w, i); | |
998 | if (ret < 0) | |
999 | return ret; | |
1000 | } | |
2b97eabc | 1001 | |
a6c65736 | 1002 | return 0; |
2b97eabc RP |
1003 | } |
1004 | ||
c6615082 NO |
1005 | /* create new dapm dai link control */ |
1006 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
1007 | { | |
1008 | int i, ret; | |
1009 | struct snd_kcontrol *kcontrol; | |
1010 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1011 | struct snd_card *card = dapm->card->snd_card; | |
1012 | ||
1013 | /* create control for links with > 1 config */ | |
1014 | if (w->num_params <= 1) | |
1015 | return 0; | |
1016 | ||
1017 | /* add kcontrol */ | |
1018 | for (i = 0; i < w->num_kcontrols; i++) { | |
1019 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1020 | w->name, NULL); | |
1021 | ret = snd_ctl_add(card, kcontrol); | |
1022 | if (ret < 0) { | |
1023 | dev_err(dapm->dev, | |
1024 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1025 | w->name, w->kcontrol_news[i].name, ret); | |
1026 | return ret; | |
1027 | } | |
1028 | kcontrol->private_data = w; | |
1029 | w->kcontrols[i] = kcontrol; | |
1030 | } | |
1031 | ||
1032 | return 0; | |
1033 | } | |
1034 | ||
9949788b MB |
1035 | /* We implement power down on suspend by checking the power state of |
1036 | * the ALSA card - when we are suspending the ALSA state for the card | |
1037 | * is set to D3. | |
1038 | */ | |
1039 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1040 | { | |
12ea2c78 | 1041 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1042 | |
f0fba2ad | 1043 | switch (level) { |
9949788b MB |
1044 | case SNDRV_CTL_POWER_D3hot: |
1045 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1046 | if (widget->ignore_suspend) |
30a6a1a4 | 1047 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1048 | widget->name); |
1547aba9 | 1049 | return widget->ignore_suspend; |
9949788b MB |
1050 | default: |
1051 | return 1; | |
1052 | } | |
1053 | } | |
1054 | ||
1ce43acf LPC |
1055 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1056 | struct list_head *widgets) | |
ec2e3031 | 1057 | { |
1ce43acf LPC |
1058 | struct snd_soc_dapm_widget *w; |
1059 | struct list_head *it; | |
1060 | unsigned int size = 0; | |
1061 | unsigned int i = 0; | |
ec2e3031 | 1062 | |
1ce43acf LPC |
1063 | list_for_each(it, widgets) |
1064 | size++; | |
ec2e3031 | 1065 | |
1ce43acf LPC |
1066 | *list = kzalloc(sizeof(**list) + size * sizeof(*w), GFP_KERNEL); |
1067 | if (*list == NULL) | |
ec2e3031 | 1068 | return -ENOMEM; |
ec2e3031 | 1069 | |
1ce43acf LPC |
1070 | list_for_each_entry(w, widgets, work_list) |
1071 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1072 | |
1ce43acf LPC |
1073 | (*list)->num_widgets = i; |
1074 | ||
1075 | return 0; | |
ec2e3031 LG |
1076 | } |
1077 | ||
2b97eabc | 1078 | /* |
a3423b02 LPC |
1079 | * Common implementation for is_connected_output_ep() and |
1080 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1081 | * the two specialized functions is only marginally larger then the size of the | |
1082 | * generic function and at the same time the fast path of the specialized | |
1083 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1084 | */ |
a3423b02 LPC |
1085 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1086 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
6742064a PS |
1087 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *, |
1088 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1089 | enum snd_soc_dapm_direction)), | |
1090 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1091 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1092 | { |
a3423b02 | 1093 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1094 | struct snd_soc_dapm_path *path; |
1095 | int con = 0; | |
1096 | ||
a3423b02 LPC |
1097 | if (widget->endpoints[dir] >= 0) |
1098 | return widget->endpoints[dir]; | |
024dc078 | 1099 | |
de02d078 MB |
1100 | DAPM_UPDATE_STAT(widget, path_checks); |
1101 | ||
1ce43acf LPC |
1102 | /* do we need to add this widget to the list ? */ |
1103 | if (list) | |
1104 | list_add_tail(&widget->work_list, list); | |
1105 | ||
09464974 JK |
1106 | if (custom_stop_condition && custom_stop_condition(widget, dir)) { |
1107 | widget->endpoints[dir] = 1; | |
1108 | return widget->endpoints[dir]; | |
1109 | } | |
6742064a | 1110 | |
a3423b02 LPC |
1111 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1112 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1113 | return widget->endpoints[dir]; | |
2b97eabc RP |
1114 | } |
1115 | ||
a3423b02 | 1116 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1117 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1118 | ||
c1862c8b | 1119 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1120 | continue; |
1121 | ||
8af294b4 MB |
1122 | if (path->walking) |
1123 | return 1; | |
1124 | ||
a3423b02 | 1125 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1126 | |
7ddd4cd5 | 1127 | if (path->connect) { |
8af294b4 | 1128 | path->walking = 1; |
6742064a | 1129 | con += fn(path->node[dir], list, custom_stop_condition); |
8af294b4 | 1130 | path->walking = 0; |
2b97eabc RP |
1131 | } |
1132 | } | |
1133 | ||
a3423b02 | 1134 | widget->endpoints[dir] = con; |
024dc078 | 1135 | |
2b97eabc RP |
1136 | return con; |
1137 | } | |
1138 | ||
a3423b02 LPC |
1139 | /* |
1140 | * Recursively check for a completed path to an active or physically connected | |
1141 | * output widget. Returns number of complete paths. | |
6742064a PS |
1142 | * |
1143 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1144 | * This function takes the dapm widget currently being examined and the walk | |
1145 | * direction as an arguments, it should return true if the walk should be | |
1146 | * stopped and false otherwise. | |
a3423b02 LPC |
1147 | */ |
1148 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
6742064a PS |
1149 | struct list_head *list, |
1150 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1151 | enum snd_soc_dapm_direction)) | |
a3423b02 LPC |
1152 | { |
1153 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
6742064a | 1154 | is_connected_output_ep, custom_stop_condition); |
a3423b02 LPC |
1155 | } |
1156 | ||
2b97eabc RP |
1157 | /* |
1158 | * Recursively check for a completed path to an active or physically connected | |
1159 | * input widget. Returns number of complete paths. | |
6742064a PS |
1160 | * |
1161 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1162 | * This function takes the dapm widget currently being examined and the walk | |
1163 | * direction as an arguments, it should return true if the walk should be | |
1164 | * stopped and false otherwise. | |
2b97eabc | 1165 | */ |
ec2e3031 | 1166 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
6742064a PS |
1167 | struct list_head *list, |
1168 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1169 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1170 | { |
a3423b02 | 1171 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
6742064a | 1172 | is_connected_input_ep, custom_stop_condition); |
2b97eabc RP |
1173 | } |
1174 | ||
ec2e3031 LG |
1175 | /** |
1176 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1177 | * @dai: the soc DAI. | |
1178 | * @stream: stream direction. | |
1179 | * @list: list of active widgets for this stream. | |
6742064a PS |
1180 | * @custom_stop_condition: (optional) a function meant to stop the widget graph |
1181 | * walk based on custom logic. | |
ec2e3031 | 1182 | * |
c8046000 | 1183 | * Queries DAPM graph as to whether a valid audio stream path exists for |
ec2e3031 LG |
1184 | * the initial stream specified by name. This takes into account |
1185 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1186 | * | |
6742064a PS |
1187 | * Optionally, can be supplied with a function acting as a stopping condition. |
1188 | * This function takes the dapm widget currently being examined and the walk | |
1189 | * direction as an arguments, it should return true if the walk should be | |
1190 | * stopped and false otherwise. | |
1191 | * | |
ec2e3031 LG |
1192 | * Returns the number of valid paths or negative error. |
1193 | */ | |
1194 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
6742064a PS |
1195 | struct snd_soc_dapm_widget_list **list, |
1196 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1197 | enum snd_soc_dapm_direction)) | |
ec2e3031 | 1198 | { |
313665b9 | 1199 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1200 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1201 | LIST_HEAD(widgets); |
ec2e3031 | 1202 | int paths; |
1ce43acf | 1203 | int ret; |
ec2e3031 LG |
1204 | |
1205 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1206 | |
1207 | /* | |
1208 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1209 | * to reset the cached number of inputs and outputs. | |
1210 | */ | |
1211 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 LPC |
1212 | w->endpoints[SND_SOC_DAPM_DIR_IN] = -1; |
1213 | w->endpoints[SND_SOC_DAPM_DIR_OUT] = -1; | |
92a99ea4 | 1214 | } |
ec2e3031 | 1215 | |
130897ac | 1216 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
6742064a PS |
1217 | paths = is_connected_output_ep(dai->playback_widget, &widgets, |
1218 | custom_stop_condition); | |
130897ac | 1219 | else |
6742064a PS |
1220 | paths = is_connected_input_ep(dai->capture_widget, &widgets, |
1221 | custom_stop_condition); | |
1ce43acf LPC |
1222 | |
1223 | /* Drop starting point */ | |
1224 | list_del(widgets.next); | |
1225 | ||
1226 | ret = dapm_widget_list_create(list, &widgets); | |
1227 | if (ret) | |
30abbe77 | 1228 | paths = ret; |
ec2e3031 LG |
1229 | |
1230 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1231 | mutex_unlock(&card->dapm_mutex); |
1232 | ||
1233 | return paths; | |
1234 | } | |
1235 | ||
62ea874a MB |
1236 | /* |
1237 | * Handler for regulator supply widget. | |
1238 | */ | |
1239 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1240 | struct snd_kcontrol *kcontrol, int event) | |
1241 | { | |
c05b84d1 MB |
1242 | int ret; |
1243 | ||
eb270e98 MB |
1244 | soc_dapm_async_complete(w->dapm); |
1245 | ||
c05b84d1 | 1246 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1247 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1248 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1249 | if (ret != 0) |
1250 | dev_warn(w->dapm->dev, | |
30686c35 | 1251 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1252 | w->name, ret); |
1253 | } | |
1254 | ||
a3cc056b | 1255 | return regulator_enable(w->regulator); |
c05b84d1 | 1256 | } else { |
de9ba98b | 1257 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1258 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1259 | if (ret != 0) |
1260 | dev_warn(w->dapm->dev, | |
30686c35 | 1261 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1262 | w->name, ret); |
1263 | } | |
1264 | ||
a3cc056b | 1265 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1266 | } |
62ea874a MB |
1267 | } |
1268 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1269 | ||
d7e7eb91 OL |
1270 | /* |
1271 | * Handler for clock supply widget. | |
1272 | */ | |
1273 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1274 | struct snd_kcontrol *kcontrol, int event) | |
1275 | { | |
1276 | if (!w->clk) | |
1277 | return -EIO; | |
1278 | ||
eb270e98 MB |
1279 | soc_dapm_async_complete(w->dapm); |
1280 | ||
ec02995a | 1281 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1282 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1283 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1284 | } else { |
37c1b927 | 1285 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1286 | return 0; |
1287 | } | |
ec02995a | 1288 | #endif |
98b3cf12 | 1289 | return 0; |
d7e7eb91 OL |
1290 | } |
1291 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1292 | ||
d805002b MB |
1293 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1294 | { | |
9b8a83b2 MB |
1295 | if (w->power_checked) |
1296 | return w->new_power; | |
1297 | ||
d805002b | 1298 | if (w->force) |
9b8a83b2 | 1299 | w->new_power = 1; |
d805002b | 1300 | else |
9b8a83b2 MB |
1301 | w->new_power = w->power_check(w); |
1302 | ||
1303 | w->power_checked = true; | |
1304 | ||
1305 | return w->new_power; | |
d805002b MB |
1306 | } |
1307 | ||
c8046000 | 1308 | /* Generic check to see if a widget should be powered. */ |
cd0f2d47 MB |
1309 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
1310 | { | |
1311 | int in, out; | |
1312 | ||
de02d078 MB |
1313 | DAPM_UPDATE_STAT(w, power_checks); |
1314 | ||
6742064a PS |
1315 | in = is_connected_input_ep(w, NULL, NULL); |
1316 | out = is_connected_output_ep(w, NULL, NULL); | |
cd0f2d47 MB |
1317 | return out != 0 && in != 0; |
1318 | } | |
1319 | ||
246d0a17 MB |
1320 | /* Check to see if a power supply is needed */ |
1321 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1322 | { | |
1323 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1324 | |
de02d078 MB |
1325 | DAPM_UPDATE_STAT(w, power_checks); |
1326 | ||
246d0a17 | 1327 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1328 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1329 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1330 | ||
bf3a9e13 MB |
1331 | if (path->weak) |
1332 | continue; | |
1333 | ||
215edda3 MB |
1334 | if (path->connected && |
1335 | !path->connected(path->source, path->sink)) | |
1336 | continue; | |
1337 | ||
f68d7e16 MB |
1338 | if (dapm_widget_power_check(path->sink)) |
1339 | return 1; | |
246d0a17 MB |
1340 | } |
1341 | ||
f68d7e16 | 1342 | return 0; |
246d0a17 MB |
1343 | } |
1344 | ||
35c64bca MB |
1345 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1346 | { | |
20bb0184 | 1347 | return w->connected; |
35c64bca MB |
1348 | } |
1349 | ||
38357ab2 MB |
1350 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1351 | struct snd_soc_dapm_widget *b, | |
828a842f | 1352 | bool power_up) |
42aa3418 | 1353 | { |
828a842f MB |
1354 | int *sort; |
1355 | ||
1356 | if (power_up) | |
1357 | sort = dapm_up_seq; | |
1358 | else | |
1359 | sort = dapm_down_seq; | |
1360 | ||
38357ab2 MB |
1361 | if (sort[a->id] != sort[b->id]) |
1362 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1363 | if (a->subseq != b->subseq) { |
1364 | if (power_up) | |
1365 | return a->subseq - b->subseq; | |
1366 | else | |
1367 | return b->subseq - a->subseq; | |
1368 | } | |
b22ead2a MB |
1369 | if (a->reg != b->reg) |
1370 | return a->reg - b->reg; | |
84dab567 MB |
1371 | if (a->dapm != b->dapm) |
1372 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1373 | |
38357ab2 MB |
1374 | return 0; |
1375 | } | |
42aa3418 | 1376 | |
38357ab2 MB |
1377 | /* Insert a widget in order into a DAPM power sequence. */ |
1378 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1379 | struct list_head *list, | |
828a842f | 1380 | bool power_up) |
38357ab2 MB |
1381 | { |
1382 | struct snd_soc_dapm_widget *w; | |
1383 | ||
1384 | list_for_each_entry(w, list, power_list) | |
828a842f | 1385 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1386 | list_add_tail(&new_widget->power_list, &w->power_list); |
1387 | return; | |
1388 | } | |
1389 | ||
1390 | list_add_tail(&new_widget->power_list, list); | |
1391 | } | |
1392 | ||
95dd5cd6 | 1393 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1394 | struct snd_soc_dapm_widget *w, int event) |
1395 | { | |
68f89ad8 MB |
1396 | const char *ev_name; |
1397 | int power, ret; | |
1398 | ||
1399 | switch (event) { | |
1400 | case SND_SOC_DAPM_PRE_PMU: | |
1401 | ev_name = "PRE_PMU"; | |
1402 | power = 1; | |
1403 | break; | |
1404 | case SND_SOC_DAPM_POST_PMU: | |
1405 | ev_name = "POST_PMU"; | |
1406 | power = 1; | |
1407 | break; | |
1408 | case SND_SOC_DAPM_PRE_PMD: | |
1409 | ev_name = "PRE_PMD"; | |
1410 | power = 0; | |
1411 | break; | |
1412 | case SND_SOC_DAPM_POST_PMD: | |
1413 | ev_name = "POST_PMD"; | |
1414 | power = 0; | |
1415 | break; | |
80114129 MB |
1416 | case SND_SOC_DAPM_WILL_PMU: |
1417 | ev_name = "WILL_PMU"; | |
1418 | power = 1; | |
1419 | break; | |
1420 | case SND_SOC_DAPM_WILL_PMD: | |
1421 | ev_name = "WILL_PMD"; | |
1422 | power = 0; | |
1423 | break; | |
68f89ad8 | 1424 | default: |
a6ed0608 | 1425 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1426 | return; |
1427 | } | |
1428 | ||
39eb5fd1 | 1429 | if (w->new_power != power) |
68f89ad8 MB |
1430 | return; |
1431 | ||
1432 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1433 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1434 | w->name, ev_name); |
eb270e98 | 1435 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1436 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1437 | ret = w->event(w, NULL, event); |
84e90930 | 1438 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1439 | if (ret < 0) |
95dd5cd6 | 1440 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1441 | ev_name, w->name, ret); |
1442 | } | |
1443 | } | |
1444 | ||
b22ead2a | 1445 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1446 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1447 | struct list_head *pending) |
163cac06 | 1448 | { |
ce0fc93a | 1449 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1450 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1451 | int reg; |
b22ead2a MB |
1452 | unsigned int value = 0; |
1453 | unsigned int mask = 0; | |
b22ead2a | 1454 | |
ce0fc93a LPC |
1455 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1456 | reg = w->reg; | |
1457 | dapm = w->dapm; | |
b22ead2a MB |
1458 | |
1459 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1460 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1461 | w->power = w->new_power; |
b22ead2a | 1462 | |
de9ba98b LPC |
1463 | mask |= w->mask << w->shift; |
1464 | if (w->power) | |
1465 | value |= w->on_val << w->shift; | |
b22ead2a | 1466 | else |
de9ba98b | 1467 | value |= w->off_val << w->shift; |
b22ead2a | 1468 | |
ce0fc93a | 1469 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1470 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1471 | w->name, reg, value, mask); | |
81628103 | 1472 | |
68f89ad8 | 1473 | /* Check for events */ |
95dd5cd6 LPC |
1474 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1475 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1476 | } |
1477 | ||
1478 | if (reg >= 0) { | |
29376bc7 MB |
1479 | /* Any widget will do, they should all be updating the |
1480 | * same register. | |
1481 | */ | |
29376bc7 | 1482 | |
ce0fc93a | 1483 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1484 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1485 | value, mask, reg, card->pop_time); |
1486 | pop_wait(card->pop_time); | |
ce0fc93a | 1487 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1488 | } |
1489 | ||
81628103 | 1490 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1491 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1492 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1493 | } |
b22ead2a | 1494 | } |
42aa3418 | 1495 | |
b22ead2a MB |
1496 | /* Apply a DAPM power sequence. |
1497 | * | |
1498 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1499 | * order to minimise the number of writes to the device required | |
1500 | * multiple widgets will be updated in a single write where possible. | |
1501 | * Currently anything that requires more than a single write is not | |
1502 | * handled. | |
1503 | */ | |
95dd5cd6 LPC |
1504 | static void dapm_seq_run(struct snd_soc_card *card, |
1505 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1506 | { |
1507 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1508 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1509 | LIST_HEAD(pending); |
1510 | int cur_sort = -1; | |
20e4859d | 1511 | int cur_subseq = -1; |
b22ead2a | 1512 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1513 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1514 | int ret, i; |
828a842f MB |
1515 | int *sort; |
1516 | ||
1517 | if (power_up) | |
1518 | sort = dapm_up_seq; | |
1519 | else | |
1520 | sort = dapm_down_seq; | |
163cac06 | 1521 | |
b22ead2a MB |
1522 | list_for_each_entry_safe(w, n, list, power_list) { |
1523 | ret = 0; | |
1524 | ||
1525 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1526 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1527 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1528 | if (!list_empty(&pending)) |
95dd5cd6 | 1529 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1530 | |
474b62d6 MB |
1531 | if (cur_dapm && cur_dapm->seq_notifier) { |
1532 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1533 | if (sort[i] == cur_sort) | |
1534 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1535 | i, |
1536 | cur_subseq); | |
474b62d6 MB |
1537 | } |
1538 | ||
eb270e98 MB |
1539 | if (cur_dapm && w->dapm != cur_dapm) |
1540 | soc_dapm_async_complete(cur_dapm); | |
1541 | ||
b22ead2a MB |
1542 | INIT_LIST_HEAD(&pending); |
1543 | cur_sort = -1; | |
b0b3e6f8 | 1544 | cur_subseq = INT_MIN; |
b22ead2a | 1545 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1546 | cur_dapm = NULL; |
b22ead2a MB |
1547 | } |
1548 | ||
163cac06 MB |
1549 | switch (w->id) { |
1550 | case snd_soc_dapm_pre: | |
1551 | if (!w->event) | |
b22ead2a MB |
1552 | list_for_each_entry_safe_continue(w, n, list, |
1553 | power_list); | |
163cac06 | 1554 | |
b22ead2a | 1555 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1556 | ret = w->event(w, |
1557 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1558 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1559 | ret = w->event(w, |
1560 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1561 | break; |
1562 | ||
1563 | case snd_soc_dapm_post: | |
1564 | if (!w->event) | |
b22ead2a MB |
1565 | list_for_each_entry_safe_continue(w, n, list, |
1566 | power_list); | |
163cac06 | 1567 | |
b22ead2a | 1568 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1569 | ret = w->event(w, |
1570 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1571 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1572 | ret = w->event(w, |
1573 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1574 | break; |
1575 | ||
b22ead2a | 1576 | default: |
81628103 MB |
1577 | /* Queue it up for application */ |
1578 | cur_sort = sort[w->id]; | |
20e4859d | 1579 | cur_subseq = w->subseq; |
81628103 | 1580 | cur_reg = w->reg; |
7be31be8 | 1581 | cur_dapm = w->dapm; |
81628103 MB |
1582 | list_move(&w->power_list, &pending); |
1583 | break; | |
163cac06 | 1584 | } |
b22ead2a MB |
1585 | |
1586 | if (ret < 0) | |
f7d41ae8 | 1587 | dev_err(w->dapm->dev, |
30a6a1a4 | 1588 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1589 | } |
b22ead2a MB |
1590 | |
1591 | if (!list_empty(&pending)) | |
95dd5cd6 | 1592 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1593 | |
1594 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1595 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1596 | if (sort[i] == cur_sort) | |
1597 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1598 | i, cur_subseq); |
474b62d6 | 1599 | } |
eb270e98 MB |
1600 | |
1601 | list_for_each_entry(d, &card->dapm_list, list) { | |
1602 | soc_dapm_async_complete(d); | |
1603 | } | |
42aa3418 MB |
1604 | } |
1605 | ||
95dd5cd6 | 1606 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1607 | { |
95dd5cd6 | 1608 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1609 | struct snd_soc_dapm_widget_list *wlist; |
1610 | struct snd_soc_dapm_widget *w = NULL; | |
1611 | unsigned int wi; | |
97404f2e MB |
1612 | int ret; |
1613 | ||
57295073 | 1614 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1615 | return; |
1616 | ||
e84357f7 | 1617 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1618 | |
ce6cfaf1 LPC |
1619 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1620 | w = wlist->widgets[wi]; | |
1621 | ||
1622 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1623 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1624 | if (ret != 0) | |
95dd5cd6 | 1625 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1626 | w->name, ret); |
1627 | } | |
97404f2e MB |
1628 | } |
1629 | ||
ce6cfaf1 LPC |
1630 | if (!w) |
1631 | return; | |
1632 | ||
ce0fc93a LPC |
1633 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1634 | update->val); | |
97404f2e | 1635 | if (ret < 0) |
95dd5cd6 | 1636 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1637 | w->name, ret); |
97404f2e | 1638 | |
ce6cfaf1 LPC |
1639 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1640 | w = wlist->widgets[wi]; | |
1641 | ||
1642 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1643 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1644 | if (ret != 0) | |
95dd5cd6 | 1645 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1646 | w->name, ret); |
1647 | } | |
97404f2e MB |
1648 | } |
1649 | } | |
1650 | ||
9d0624a7 MB |
1651 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1652 | * they're changing state. | |
1653 | */ | |
1654 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1655 | { | |
1656 | struct snd_soc_dapm_context *d = data; | |
1657 | int ret; | |
1658 | ||
c8046000 | 1659 | /* If we're off and we're not supposed to go into STANDBY */ |
56fba41f MB |
1660 | if (d->bias_level == SND_SOC_BIAS_OFF && |
1661 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1662 | if (d->dev) |
1663 | pm_runtime_get_sync(d->dev); | |
1664 | ||
9d0624a7 MB |
1665 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1666 | if (ret != 0) | |
1667 | dev_err(d->dev, | |
30a6a1a4 | 1668 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1669 | } |
1670 | ||
ce85a4d7 LPC |
1671 | /* Prepare for a transition to ON or away from ON */ |
1672 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1673 | d->bias_level != SND_SOC_BIAS_ON) || | |
1674 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1675 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1676 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1677 | if (ret != 0) | |
1678 | dev_err(d->dev, | |
30a6a1a4 | 1679 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1680 | } |
1681 | } | |
1682 | ||
1683 | /* Async callback run prior to DAPM sequences - brings to their final | |
1684 | * state. | |
1685 | */ | |
1686 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1687 | { | |
1688 | struct snd_soc_dapm_context *d = data; | |
1689 | int ret; | |
1690 | ||
1691 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1692 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1693 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1694 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1695 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1696 | if (ret != 0) | |
30a6a1a4 | 1697 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1698 | ret); |
1699 | } | |
97404f2e | 1700 | |
9d0624a7 | 1701 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1702 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1703 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1704 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1705 | if (ret != 0) | |
30a6a1a4 LG |
1706 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1707 | ret); | |
f1aac484 MB |
1708 | |
1709 | if (d->dev) | |
fb644e9c | 1710 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1711 | } |
1712 | ||
1713 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1714 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1715 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1716 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1717 | if (ret != 0) | |
30a6a1a4 | 1718 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1719 | ret); |
1720 | } | |
1721 | } | |
97404f2e | 1722 | |
fe4fda5d MB |
1723 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1724 | bool power, bool connect) | |
1725 | { | |
1726 | /* If a connection is being made or broken then that update | |
1727 | * will have marked the peer dirty, otherwise the widgets are | |
1728 | * not connected and this update has no impact. */ | |
1729 | if (!connect) | |
1730 | return; | |
1731 | ||
1732 | /* If the peer is already in the state we're moving to then we | |
1733 | * won't have an impact on it. */ | |
1734 | if (power != peer->power) | |
75c1f891 | 1735 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1736 | } |
1737 | ||
05623c43 MB |
1738 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1739 | struct list_head *up_list, | |
1740 | struct list_head *down_list) | |
1741 | { | |
db432b41 MB |
1742 | struct snd_soc_dapm_path *path; |
1743 | ||
05623c43 MB |
1744 | if (w->power == power) |
1745 | return; | |
1746 | ||
1747 | trace_snd_soc_dapm_widget_power(w, power); | |
1748 | ||
db432b41 | 1749 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1750 | * also. |
db432b41 | 1751 | */ |
e63bfd45 | 1752 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1753 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1754 | ||
6dd98b0a LPC |
1755 | /* Supplies can't affect their outputs, only their inputs */ |
1756 | if (!w->is_supply) { | |
e63bfd45 | 1757 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1758 | dapm_widget_set_peer_power(path->sink, power, |
1759 | path->connect); | |
db432b41 MB |
1760 | } |
1761 | ||
05623c43 MB |
1762 | if (power) |
1763 | dapm_seq_insert(w, up_list, true); | |
1764 | else | |
1765 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1766 | } |
1767 | ||
7c81beb0 MB |
1768 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1769 | struct list_head *up_list, | |
1770 | struct list_head *down_list) | |
1771 | { | |
7c81beb0 MB |
1772 | int power; |
1773 | ||
1774 | switch (w->id) { | |
1775 | case snd_soc_dapm_pre: | |
1776 | dapm_seq_insert(w, down_list, false); | |
1777 | break; | |
1778 | case snd_soc_dapm_post: | |
1779 | dapm_seq_insert(w, up_list, true); | |
1780 | break; | |
1781 | ||
1782 | default: | |
d805002b | 1783 | power = dapm_widget_power_check(w); |
7c81beb0 | 1784 | |
05623c43 | 1785 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1786 | break; |
1787 | } | |
1788 | } | |
1789 | ||
86dbf2ac LPC |
1790 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1791 | { | |
1792 | if (dapm->idle_bias_off) | |
1793 | return true; | |
1794 | ||
1795 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1796 | case SNDRV_CTL_POWER_D3hot: | |
1797 | case SNDRV_CTL_POWER_D3cold: | |
1798 | return dapm->suspend_bias_off; | |
1799 | default: | |
1800 | break; | |
1801 | } | |
1802 | ||
1803 | return false; | |
1804 | } | |
1805 | ||
2b97eabc RP |
1806 | /* |
1807 | * Scan each dapm widget for complete audio path. | |
1808 | * A complete path is a route that has valid endpoints i.e.:- | |
1809 | * | |
1810 | * o DAC to output pin. | |
c8046000 | 1811 | * o Input pin to ADC. |
2b97eabc RP |
1812 | * o Input pin to Output pin (bypass, sidetone) |
1813 | * o DAC to ADC (loopback). | |
1814 | */ | |
95dd5cd6 | 1815 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1816 | { |
1817 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1818 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1819 | LIST_HEAD(up_list); |
1820 | LIST_HEAD(down_list); | |
2955b47d | 1821 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1822 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1823 | |
f9fa2b18 MB |
1824 | lockdep_assert_held(&card->dapm_mutex); |
1825 | ||
84e90930 MB |
1826 | trace_snd_soc_dapm_start(card); |
1827 | ||
56fba41f | 1828 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1829 | if (dapm_idle_bias_off(d)) |
497098be MB |
1830 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1831 | else | |
1832 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1833 | } |
7be31be8 | 1834 | |
6c120e19 | 1835 | dapm_reset(card); |
9b8a83b2 | 1836 | |
6d3ddc81 | 1837 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1838 | * lists indicating if they should be powered up or down. We |
1839 | * only check widgets that have been flagged as dirty but note | |
1840 | * that new widgets may be added to the dirty list while we | |
1841 | * iterate. | |
6d3ddc81 | 1842 | */ |
db432b41 | 1843 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1844 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1845 | } |
1846 | ||
f9de6d74 | 1847 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1848 | switch (w->id) { |
1849 | case snd_soc_dapm_pre: | |
1850 | case snd_soc_dapm_post: | |
1851 | /* These widgets always need to be powered */ | |
1852 | break; | |
1853 | default: | |
1854 | list_del_init(&w->dirty); | |
1855 | break; | |
1856 | } | |
db432b41 | 1857 | |
39eb5fd1 | 1858 | if (w->new_power) { |
f9de6d74 MB |
1859 | d = w->dapm; |
1860 | ||
1861 | /* Supplies and micbiases only bring the | |
1862 | * context up to STANDBY as unless something | |
1863 | * else is active and passing audio they | |
afe62367 MB |
1864 | * generally don't require full power. Signal |
1865 | * generators are virtual pins and have no | |
1866 | * power impact themselves. | |
f9de6d74 MB |
1867 | */ |
1868 | switch (w->id) { | |
afe62367 | 1869 | case snd_soc_dapm_siggen: |
da83fea6 | 1870 | case snd_soc_dapm_vmid: |
afe62367 | 1871 | break; |
f9de6d74 | 1872 | case snd_soc_dapm_supply: |
62ea874a | 1873 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1874 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1875 | case snd_soc_dapm_micbias: |
1876 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1877 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1878 | break; | |
1879 | default: | |
1880 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1881 | break; | |
1882 | } | |
1883 | } | |
1884 | ||
1885 | } | |
1886 | ||
85a843c5 MB |
1887 | /* Force all contexts in the card to the same bias state if |
1888 | * they're not ground referenced. | |
1889 | */ | |
56fba41f | 1890 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1891 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1892 | if (d->target_bias_level > bias) |
1893 | bias = d->target_bias_level; | |
52ba67bf | 1894 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1895 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1896 | d->target_bias_level = bias; |
52ba67bf | 1897 | |
de02d078 | 1898 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1899 | |
17282ba4 XX |
1900 | /* Run card bias changes at first */ |
1901 | dapm_pre_sequence_async(&card->dapm, 0); | |
1902 | /* Run other bias changes in parallel */ | |
1903 | list_for_each_entry(d, &card->dapm_list, list) { | |
1904 | if (d != &card->dapm) | |
1905 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1906 | &async_domain); | |
1907 | } | |
9d0624a7 | 1908 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1909 | |
cf1f7c6e | 1910 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1911 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1912 | } |
1913 | ||
cf1f7c6e | 1914 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1915 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1916 | } |
1917 | ||
6d3ddc81 | 1918 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1919 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1920 | |
95dd5cd6 | 1921 | dapm_widget_update(card); |
97404f2e | 1922 | |
6d3ddc81 | 1923 | /* Now power up. */ |
95dd5cd6 | 1924 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1925 | |
9d0624a7 | 1926 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1927 | list_for_each_entry(d, &card->dapm_list, list) { |
1928 | if (d != &card->dapm) | |
1929 | async_schedule_domain(dapm_post_sequence_async, d, | |
1930 | &async_domain); | |
1931 | } | |
9d0624a7 | 1932 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1933 | /* Run card bias changes at last */ |
1934 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1935 | |
8078d87f LG |
1936 | /* do we need to notify any clients that DAPM event is complete */ |
1937 | list_for_each_entry(d, &card->dapm_list, list) { | |
1938 | if (d->stream_event) | |
1939 | d->stream_event(d, event); | |
1940 | } | |
1941 | ||
95dd5cd6 | 1942 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1943 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1944 | pop_wait(card->pop_time); |
cb507e7e | 1945 | |
84e90930 MB |
1946 | trace_snd_soc_dapm_done(card); |
1947 | ||
42aa3418 | 1948 | return 0; |
2b97eabc RP |
1949 | } |
1950 | ||
79fb9387 | 1951 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1952 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1953 | char __user *user_buf, | |
1954 | size_t count, loff_t *ppos) | |
1955 | { | |
1956 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1957 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 1958 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
1959 | char *buf; |
1960 | int in, out; | |
1961 | ssize_t ret; | |
1962 | struct snd_soc_dapm_path *p = NULL; | |
1963 | ||
1964 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1965 | if (!buf) | |
1966 | return -ENOMEM; | |
1967 | ||
e50b1e06 LPC |
1968 | mutex_lock(&card->dapm_mutex); |
1969 | ||
c1862c8b LPC |
1970 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1971 | if (w->is_supply) { | |
1972 | in = 0; | |
1973 | out = 0; | |
1974 | } else { | |
6742064a PS |
1975 | in = is_connected_input_ep(w, NULL, NULL); |
1976 | out = is_connected_output_ep(w, NULL, NULL); | |
c1862c8b | 1977 | } |
79fb9387 | 1978 | |
91890492 | 1979 | ret = scnprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
f13ebada MB |
1980 | w->name, w->power ? "On" : "Off", |
1981 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1982 | |
d033c36a | 1983 | if (w->reg >= 0) |
91890492 | 1984 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, |
de9ba98b LPC |
1985 | " - R%d(0x%x) mask 0x%x", |
1986 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a | 1987 | |
91890492 | 1988 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n"); |
d033c36a | 1989 | |
3eef08ba | 1990 | if (w->sname) |
91890492 | 1991 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", |
3eef08ba MB |
1992 | w->sname, |
1993 | w->active ? "active" : "inactive"); | |
79fb9387 | 1994 | |
a3423b02 LPC |
1995 | snd_soc_dapm_for_each_direction(dir) { |
1996 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
1997 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
1998 | if (p->connected && !p->connected(w, p->node[rdir])) | |
1999 | continue; | |
215edda3 | 2000 | |
a3423b02 LPC |
2001 | if (!p->connect) |
2002 | continue; | |
215edda3 | 2003 | |
91890492 | 2004 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
2005 | " %s \"%s\" \"%s\"\n", |
2006 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 2007 | p->name ? p->name : "static", |
a3423b02 LPC |
2008 | p->node[rdir]->name); |
2009 | } | |
79fb9387 MB |
2010 | } |
2011 | ||
e50b1e06 LPC |
2012 | mutex_unlock(&card->dapm_mutex); |
2013 | ||
79fb9387 MB |
2014 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2015 | ||
2016 | kfree(buf); | |
2017 | return ret; | |
2018 | } | |
2019 | ||
2020 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2021 | .open = simple_open, |
79fb9387 | 2022 | .read = dapm_widget_power_read_file, |
6038f373 | 2023 | .llseek = default_llseek, |
79fb9387 MB |
2024 | }; |
2025 | ||
ef49e4fa MB |
2026 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2027 | size_t count, loff_t *ppos) | |
2028 | { | |
2029 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2030 | char *level; | |
2031 | ||
2032 | switch (dapm->bias_level) { | |
2033 | case SND_SOC_BIAS_ON: | |
2034 | level = "On\n"; | |
2035 | break; | |
2036 | case SND_SOC_BIAS_PREPARE: | |
2037 | level = "Prepare\n"; | |
2038 | break; | |
2039 | case SND_SOC_BIAS_STANDBY: | |
2040 | level = "Standby\n"; | |
2041 | break; | |
2042 | case SND_SOC_BIAS_OFF: | |
2043 | level = "Off\n"; | |
2044 | break; | |
2045 | default: | |
a6ed0608 | 2046 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2047 | level = "Unknown\n"; |
2048 | break; | |
2049 | } | |
2050 | ||
2051 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2052 | strlen(level)); | |
2053 | } | |
2054 | ||
2055 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2056 | .open = simple_open, |
ef49e4fa MB |
2057 | .read = dapm_bias_read_file, |
2058 | .llseek = default_llseek, | |
2059 | }; | |
2060 | ||
8eecaf62 LPC |
2061 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2062 | struct dentry *parent) | |
79fb9387 | 2063 | { |
79fb9387 MB |
2064 | struct dentry *d; |
2065 | ||
6553bf06 LPC |
2066 | if (!parent) |
2067 | return; | |
2068 | ||
8eecaf62 LPC |
2069 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2070 | ||
2071 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2072 | dev_warn(dapm->dev, |
30a6a1a4 | 2073 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2074 | return; |
8eecaf62 | 2075 | } |
79fb9387 | 2076 | |
ef49e4fa MB |
2077 | d = debugfs_create_file("bias_level", 0444, |
2078 | dapm->debugfs_dapm, dapm, | |
2079 | &dapm_bias_fops); | |
2080 | if (!d) | |
2081 | dev_warn(dapm->dev, | |
2082 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2083 | } |
ef49e4fa | 2084 | |
d5d1e0be LPC |
2085 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2086 | { | |
2087 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2088 | struct dentry *d; | |
79fb9387 | 2089 | |
d5d1e0be LPC |
2090 | if (!dapm->debugfs_dapm || !w->name) |
2091 | return; | |
2092 | ||
2093 | d = debugfs_create_file(w->name, 0444, | |
2094 | dapm->debugfs_dapm, w, | |
2095 | &dapm_widget_power_fops); | |
2096 | if (!d) | |
2097 | dev_warn(w->dapm->dev, | |
2098 | "ASoC: Failed to create %s debugfs file\n", | |
2099 | w->name); | |
79fb9387 | 2100 | } |
d5d1e0be | 2101 | |
6c45e126 LPC |
2102 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2103 | { | |
2104 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2105 | } | |
2106 | ||
79fb9387 | 2107 | #else |
8eecaf62 LPC |
2108 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2109 | struct dentry *parent) | |
79fb9387 MB |
2110 | { |
2111 | } | |
d5d1e0be LPC |
2112 | |
2113 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2114 | { | |
2115 | } | |
2116 | ||
6c45e126 LPC |
2117 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2118 | { | |
2119 | } | |
2120 | ||
79fb9387 MB |
2121 | #endif |
2122 | ||
4a201948 LPC |
2123 | /* |
2124 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2125 | * @path: The path to update | |
2126 | * @connect: The new connect state of the path. True if the path is connected, | |
c8046000 | 2127 | * false if it is disconnected. |
4a201948 LPC |
2128 | * @reason: The reason why the path changed (for debugging only) |
2129 | */ | |
2130 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2131 | bool connect, const char *reason) | |
2132 | { | |
2133 | if (path->connect == connect) | |
2134 | return; | |
2135 | ||
2136 | path->connect = connect; | |
2137 | dapm_mark_dirty(path->source, reason); | |
2138 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2139 | dapm_path_invalidate(path); |
4a201948 LPC |
2140 | } |
2141 | ||
2b97eabc | 2142 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2143 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2144 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2145 | { |
2146 | struct snd_soc_dapm_path *path; | |
2147 | int found = 0; | |
4a201948 | 2148 | bool connect; |
2b97eabc | 2149 | |
f9fa2b18 MB |
2150 | lockdep_assert_held(&card->dapm_mutex); |
2151 | ||
2b97eabc | 2152 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2153 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2154 | found = 1; |
2155 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2156 | if (!(strcmp(path->name, e->texts[mux]))) |
2157 | connect = true; | |
2158 | else | |
2159 | connect = false; | |
2160 | ||
2161 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2162 | } |
2163 | ||
ce6cfaf1 | 2164 | if (found) |
95dd5cd6 | 2165 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2166 | |
618dae11 | 2167 | return found; |
2b97eabc | 2168 | } |
4edbb345 | 2169 | |
ce6cfaf1 | 2170 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2171 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2172 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2173 | { |
ce6cfaf1 | 2174 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2175 | int ret; |
2176 | ||
3cd04343 | 2177 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2178 | card->update = update; |
95dd5cd6 | 2179 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2180 | card->update = NULL; |
4edbb345 | 2181 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2182 | if (ret > 0) |
c3f48ae6 | 2183 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2184 | return ret; |
2185 | } | |
40f02cd9 | 2186 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2187 | |
1b075e3f | 2188 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2189 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2190 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2191 | { |
2192 | struct snd_soc_dapm_path *path; | |
2193 | int found = 0; | |
2194 | ||
f9fa2b18 MB |
2195 | lockdep_assert_held(&card->dapm_mutex); |
2196 | ||
2b97eabc | 2197 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2198 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2199 | found = 1; |
4a201948 | 2200 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2201 | } |
2202 | ||
ce6cfaf1 | 2203 | if (found) |
95dd5cd6 | 2204 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2205 | |
618dae11 | 2206 | return found; |
2b97eabc | 2207 | } |
4edbb345 | 2208 | |
ce6cfaf1 | 2209 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2210 | struct snd_kcontrol *kcontrol, int connect, |
2211 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2212 | { |
ce6cfaf1 | 2213 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2214 | int ret; |
2215 | ||
3cd04343 | 2216 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2217 | card->update = update; |
95dd5cd6 | 2218 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2219 | card->update = NULL; |
4edbb345 | 2220 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2221 | if (ret > 0) |
c3f48ae6 | 2222 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2223 | return ret; |
2224 | } | |
40f02cd9 | 2225 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2226 | |
b3c25fb7 LPC |
2227 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2228 | char *buf) | |
2b97eabc | 2229 | { |
b3c25fb7 | 2230 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2231 | struct snd_soc_dapm_widget *w; |
2232 | int count = 0; | |
2233 | char *state = "not set"; | |
2234 | ||
47325078 MB |
2235 | /* card won't be set for the dummy component, as a spot fix |
2236 | * we're checking for that case specifically here but in future | |
2237 | * we will ensure that the dummy component looks like others. | |
2238 | */ | |
2239 | if (!cmpnt->card) | |
2240 | return 0; | |
2241 | ||
b3c25fb7 LPC |
2242 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2243 | if (w->dapm != dapm) | |
97c866de | 2244 | continue; |
2b97eabc | 2245 | |
c8046000 | 2246 | /* only display widgets that burn power */ |
2b97eabc RP |
2247 | switch (w->id) { |
2248 | case snd_soc_dapm_hp: | |
2249 | case snd_soc_dapm_mic: | |
2250 | case snd_soc_dapm_spk: | |
2251 | case snd_soc_dapm_line: | |
2252 | case snd_soc_dapm_micbias: | |
2253 | case snd_soc_dapm_dac: | |
2254 | case snd_soc_dapm_adc: | |
2255 | case snd_soc_dapm_pga: | |
d88429a6 | 2256 | case snd_soc_dapm_out_drv: |
2b97eabc | 2257 | case snd_soc_dapm_mixer: |
ca9c1aae | 2258 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2259 | case snd_soc_dapm_supply: |
62ea874a | 2260 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2261 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2262 | if (w->name) |
2263 | count += sprintf(buf + count, "%s: %s\n", | |
2264 | w->name, w->power ? "On":"Off"); | |
2265 | break; | |
2266 | default: | |
2267 | break; | |
2268 | } | |
2269 | } | |
2270 | ||
b3c25fb7 | 2271 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2272 | case SND_SOC_BIAS_ON: |
2273 | state = "On"; | |
2b97eabc | 2274 | break; |
0be9898a MB |
2275 | case SND_SOC_BIAS_PREPARE: |
2276 | state = "Prepare"; | |
2b97eabc | 2277 | break; |
0be9898a MB |
2278 | case SND_SOC_BIAS_STANDBY: |
2279 | state = "Standby"; | |
2b97eabc | 2280 | break; |
0be9898a MB |
2281 | case SND_SOC_BIAS_OFF: |
2282 | state = "Off"; | |
2b97eabc RP |
2283 | break; |
2284 | } | |
2285 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2286 | ||
2287 | return count; | |
2288 | } | |
2289 | ||
44ba2641 BC |
2290 | /* show dapm widget status in sys fs */ |
2291 | static ssize_t dapm_widget_show(struct device *dev, | |
2292 | struct device_attribute *attr, char *buf) | |
2293 | { | |
2294 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2295 | int i, count = 0; | |
2296 | ||
e50b1e06 LPC |
2297 | mutex_lock(&rtd->card->dapm_mutex); |
2298 | ||
44ba2641 | 2299 | for (i = 0; i < rtd->num_codecs; i++) { |
b3c25fb7 LPC |
2300 | struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; |
2301 | ||
2302 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2303 | } |
2304 | ||
e50b1e06 LPC |
2305 | mutex_unlock(&rtd->card->dapm_mutex); |
2306 | ||
44ba2641 BC |
2307 | return count; |
2308 | } | |
2309 | ||
2b97eabc RP |
2310 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2311 | ||
d29697dc TI |
2312 | struct attribute *soc_dapm_dev_attrs[] = { |
2313 | &dev_attr_dapm_widget.attr, | |
2314 | NULL | |
2315 | }; | |
2b97eabc | 2316 | |
8872293f LPC |
2317 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2318 | { | |
a3423b02 LPC |
2319 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2320 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2321 | list_del(&path->list_kcontrol); |
8872293f | 2322 | list_del(&path->list); |
8872293f LPC |
2323 | kfree(path); |
2324 | } | |
2325 | ||
b97e2698 LPC |
2326 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2327 | { | |
2328 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2329 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2330 | |
2331 | list_del(&w->list); | |
2332 | /* | |
2333 | * remove source and sink paths associated to this widget. | |
2334 | * While removing the path, remove reference to it from both | |
2335 | * source and sink widgets so that path is removed only once. | |
2336 | */ | |
a3423b02 LPC |
2337 | snd_soc_dapm_for_each_direction(dir) { |
2338 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2339 | dapm_free_path(p); | |
2340 | } | |
b97e2698 LPC |
2341 | |
2342 | kfree(w->kcontrols); | |
48068961 | 2343 | kfree_const(w->name); |
b97e2698 LPC |
2344 | kfree(w); |
2345 | } | |
2346 | ||
fd589a1b JS |
2347 | void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm) |
2348 | { | |
2349 | dapm->path_sink_cache.widget = NULL; | |
2350 | dapm->path_source_cache.widget = NULL; | |
2351 | } | |
2352 | ||
2b97eabc | 2353 | /* free all dapm widgets and resources */ |
ce6120cc | 2354 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2355 | { |
2356 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2357 | |
97c866de JN |
2358 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2359 | if (w->dapm != dapm) | |
2360 | continue; | |
b97e2698 | 2361 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2362 | } |
fd589a1b | 2363 | snd_soc_dapm_reset_cache(dapm); |
2b97eabc RP |
2364 | } |
2365 | ||
91a5fca4 LPC |
2366 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2367 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2368 | bool search_other_contexts) | |
a5302181 LG |
2369 | { |
2370 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2371 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2372 | |
97c866de | 2373 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2374 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2375 | if (w->dapm == dapm) |
2376 | return w; | |
2377 | else | |
2378 | fallback = w; | |
a5302181 LG |
2379 | } |
2380 | } | |
2381 | ||
91a5fca4 LPC |
2382 | if (search_other_contexts) |
2383 | return fallback; | |
2384 | ||
2385 | return NULL; | |
2386 | } | |
2387 | ||
2388 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2389 | const char *pin, int status) | |
2390 | { | |
2391 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2392 | ||
f9fa2b18 MB |
2393 | dapm_assert_locked(dapm); |
2394 | ||
91a5fca4 | 2395 | if (!w) { |
30a6a1a4 | 2396 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2397 | return -EINVAL; |
0d86733c MB |
2398 | } |
2399 | ||
92a99ea4 | 2400 | if (w->connected != status) { |
1a8b2d9d | 2401 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2402 | dapm_widget_invalidate_input_paths(w); |
2403 | dapm_widget_invalidate_output_paths(w); | |
2404 | } | |
1a8b2d9d | 2405 | |
91a5fca4 LPC |
2406 | w->connected = status; |
2407 | if (status == 0) | |
2408 | w->force = 0; | |
2409 | ||
2410 | return 0; | |
a5302181 LG |
2411 | } |
2412 | ||
2b97eabc | 2413 | /** |
3eb29dfb | 2414 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2415 | * @dapm: DAPM context |
2b97eabc RP |
2416 | * |
2417 | * Walks all dapm audio paths and powers widgets according to their | |
2418 | * stream or path usage. | |
2419 | * | |
3eb29dfb CK |
2420 | * Requires external locking. |
2421 | * | |
2b97eabc RP |
2422 | * Returns 0 for success. |
2423 | */ | |
3eb29dfb | 2424 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2425 | { |
4f4c0072 MB |
2426 | /* |
2427 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2428 | * silly DAPM runs during card startup. | |
2429 | */ | |
2430 | if (!dapm->card || !dapm->card->instantiated) | |
2431 | return 0; | |
2432 | ||
3eb29dfb CK |
2433 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2434 | } | |
2435 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2436 | ||
2437 | /** | |
2438 | * snd_soc_dapm_sync - scan and power dapm paths | |
2439 | * @dapm: DAPM context | |
2440 | * | |
2441 | * Walks all dapm audio paths and powers widgets according to their | |
2442 | * stream or path usage. | |
2443 | * | |
2444 | * Returns 0 for success. | |
2445 | */ | |
2446 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2447 | { | |
2448 | int ret; | |
2449 | ||
3cd04343 | 2450 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2451 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2452 | mutex_unlock(&dapm->card->dapm_mutex); |
2453 | return ret; | |
2b97eabc | 2454 | } |
a5302181 | 2455 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2456 | |
6dd98b0a LPC |
2457 | /* |
2458 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2459 | * @w: The widget for which to update the flags | |
2460 | * | |
2461 | * Some widgets have a dynamic category which depends on which neighbors they | |
2462 | * are connected to. This function update the category for these widgets. | |
2463 | * | |
2464 | * This function must be called whenever a path is added or removed to a widget. | |
2465 | */ | |
2466 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2467 | { | |
a3423b02 | 2468 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2469 | struct snd_soc_dapm_path *p; |
a3423b02 | 2470 | unsigned int ep; |
6dd98b0a LPC |
2471 | |
2472 | switch (w->id) { | |
2473 | case snd_soc_dapm_input: | |
c8046000 | 2474 | /* On a fully routed card an input is never a source */ |
86d75003 | 2475 | if (w->dapm->card->fully_routed) |
a3423b02 LPC |
2476 | return; |
2477 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2478 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2479 | if (p->source->id == snd_soc_dapm_micbias || |
2480 | p->source->id == snd_soc_dapm_mic || | |
2481 | p->source->id == snd_soc_dapm_line || | |
2482 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2483 | ep = 0; |
6dd98b0a LPC |
2484 | break; |
2485 | } | |
2486 | } | |
2487 | break; | |
2488 | case snd_soc_dapm_output: | |
86d75003 LPC |
2489 | /* On a fully routed card a output is never a sink */ |
2490 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2491 | return; |
2492 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2493 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2494 | if (p->sink->id == snd_soc_dapm_spk || |
2495 | p->sink->id == snd_soc_dapm_hp || | |
2496 | p->sink->id == snd_soc_dapm_line || | |
2497 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2498 | ep = 0; |
6dd98b0a LPC |
2499 | break; |
2500 | } | |
2501 | } | |
2502 | break; | |
2503 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2504 | ep = 0; |
2505 | snd_soc_dapm_for_each_direction(dir) { | |
2506 | if (!list_empty(&w->edges[dir])) | |
2507 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2508 | } | |
6dd98b0a LPC |
2509 | break; |
2510 | default: | |
a3423b02 | 2511 | return; |
6dd98b0a | 2512 | } |
a3423b02 LPC |
2513 | |
2514 | w->is_ep = ep; | |
6dd98b0a LPC |
2515 | } |
2516 | ||
d714f97c LPC |
2517 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2518 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2519 | const char *control) | |
2520 | { | |
2521 | bool dynamic_source = false; | |
2522 | bool dynamic_sink = false; | |
2523 | ||
2524 | if (!control) | |
2525 | return 0; | |
2526 | ||
2527 | switch (source->id) { | |
2528 | case snd_soc_dapm_demux: | |
2529 | dynamic_source = true; | |
2530 | break; | |
2531 | default: | |
2532 | break; | |
2533 | } | |
2534 | ||
2535 | switch (sink->id) { | |
2536 | case snd_soc_dapm_mux: | |
2537 | case snd_soc_dapm_switch: | |
2538 | case snd_soc_dapm_mixer: | |
2539 | case snd_soc_dapm_mixer_named_ctl: | |
2540 | dynamic_sink = true; | |
2541 | break; | |
2542 | default: | |
2543 | break; | |
2544 | } | |
2545 | ||
2546 | if (dynamic_source && dynamic_sink) { | |
2547 | dev_err(dapm->dev, | |
2548 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2549 | source->name, control, sink->name); | |
2550 | return -EINVAL; | |
2551 | } else if (!dynamic_source && !dynamic_sink) { | |
2552 | dev_err(dapm->dev, | |
2553 | "Control not supported for path %s -> [%s] -> %s\n", | |
2554 | source->name, control, sink->name); | |
2555 | return -EINVAL; | |
2556 | } | |
2557 | ||
2558 | return 0; | |
2559 | } | |
2560 | ||
2553628e LPC |
2561 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2562 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2563 | const char *control, | |
2564 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2565 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2566 | { |
a3423b02 LPC |
2567 | struct snd_soc_dapm_widget *widgets[2]; |
2568 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2569 | struct snd_soc_dapm_path *path; |
2553628e | 2570 | int ret; |
2b97eabc | 2571 | |
e409dfbf LPC |
2572 | if (wsink->is_supply && !wsource->is_supply) { |
2573 | dev_err(dapm->dev, | |
2574 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2575 | wsource->name, wsink->name); | |
2576 | return -EINVAL; | |
2577 | } | |
2578 | ||
2579 | if (connected && !wsource->is_supply) { | |
2580 | dev_err(dapm->dev, | |
2581 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2582 | wsource->name, wsink->name); | |
2583 | return -EINVAL; | |
2584 | } | |
2585 | ||
2586 | if (wsource->is_supply && control) { | |
2587 | dev_err(dapm->dev, | |
2588 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2589 | wsource->name, control, wsink->name); | |
2590 | return -EINVAL; | |
2591 | } | |
2592 | ||
d714f97c LPC |
2593 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2594 | if (ret) | |
2595 | return ret; | |
2596 | ||
2b97eabc RP |
2597 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2598 | if (!path) | |
2599 | return -ENOMEM; | |
2600 | ||
a3423b02 LPC |
2601 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2602 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2603 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2604 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2605 | ||
2553628e | 2606 | path->connected = connected; |
2b97eabc | 2607 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2608 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2609 | |
c1862c8b LPC |
2610 | if (wsource->is_supply || wsink->is_supply) |
2611 | path->is_supply = 1; | |
2612 | ||
2b97eabc RP |
2613 | /* connect static paths */ |
2614 | if (control == NULL) { | |
2b97eabc | 2615 | path->connect = 1; |
5fe5b767 | 2616 | } else { |
d714f97c LPC |
2617 | switch (wsource->id) { |
2618 | case snd_soc_dapm_demux: | |
2619 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2620 | if (ret) | |
2621 | goto err; | |
2622 | break; | |
2623 | default: | |
2624 | break; | |
2625 | } | |
2626 | ||
5fe5b767 LPC |
2627 | switch (wsink->id) { |
2628 | case snd_soc_dapm_mux: | |
d714f97c | 2629 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2630 | if (ret != 0) |
2631 | goto err; | |
2632 | break; | |
2633 | case snd_soc_dapm_switch: | |
2634 | case snd_soc_dapm_mixer: | |
2635 | case snd_soc_dapm_mixer_named_ctl: | |
2636 | ret = dapm_connect_mixer(dapm, path, control); | |
2637 | if (ret != 0) | |
2638 | goto err; | |
2639 | break; | |
2640 | default: | |
d714f97c | 2641 | break; |
5fe5b767 | 2642 | } |
2b97eabc | 2643 | } |
fabd0384 | 2644 | |
5fe5b767 | 2645 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2646 | snd_soc_dapm_for_each_direction(dir) |
2647 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2648 | |
a3423b02 LPC |
2649 | snd_soc_dapm_for_each_direction(dir) { |
2650 | dapm_update_widget_flags(widgets[dir]); | |
2651 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2652 | } | |
5fe5b767 | 2653 | |
92a99ea4 LPC |
2654 | if (dapm->card->instantiated && path->connect) |
2655 | dapm_path_invalidate(path); | |
2656 | ||
2b97eabc | 2657 | return 0; |
2553628e LPC |
2658 | err: |
2659 | kfree(path); | |
2660 | return ret; | |
2661 | } | |
2b97eabc | 2662 | |
2553628e | 2663 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2664 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2665 | { |
2666 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2667 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2668 | const char *sink; | |
2669 | const char *source; | |
2670 | char prefixed_sink[80]; | |
2671 | char prefixed_source[80]; | |
94f99c87 | 2672 | const char *prefix; |
2553628e LPC |
2673 | int ret; |
2674 | ||
94f99c87 LPC |
2675 | prefix = soc_dapm_prefix(dapm); |
2676 | if (prefix) { | |
2553628e | 2677 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2678 | prefix, route->sink); |
2553628e LPC |
2679 | sink = prefixed_sink; |
2680 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2681 | prefix, route->source); |
2553628e LPC |
2682 | source = prefixed_source; |
2683 | } else { | |
2684 | sink = route->sink; | |
2685 | source = route->source; | |
2686 | } | |
2687 | ||
45a110a1 CK |
2688 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2689 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2690 | ||
2691 | if (wsink && wsource) | |
2692 | goto skip_search; | |
2693 | ||
2553628e LPC |
2694 | /* |
2695 | * find src and dest widgets over all widgets but favor a widget from | |
2696 | * current DAPM context | |
2697 | */ | |
2698 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2699 | if (!wsink && !(strcmp(w->name, sink))) { | |
2700 | wtsink = w; | |
70c75109 | 2701 | if (w->dapm == dapm) { |
2553628e | 2702 | wsink = w; |
70c75109 CK |
2703 | if (wsource) |
2704 | break; | |
2705 | } | |
2553628e LPC |
2706 | continue; |
2707 | } | |
2708 | if (!wsource && !(strcmp(w->name, source))) { | |
2709 | wtsource = w; | |
70c75109 | 2710 | if (w->dapm == dapm) { |
2553628e | 2711 | wsource = w; |
70c75109 CK |
2712 | if (wsink) |
2713 | break; | |
2714 | } | |
2553628e LPC |
2715 | } |
2716 | } | |
2717 | /* use widget from another DAPM context if not found from this */ | |
2718 | if (!wsink) | |
2719 | wsink = wtsink; | |
2720 | if (!wsource) | |
2721 | wsource = wtsource; | |
2722 | ||
2723 | if (wsource == NULL) { | |
2724 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2725 | route->source); | |
2726 | return -ENODEV; | |
2727 | } | |
2728 | if (wsink == NULL) { | |
2729 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2730 | route->sink); | |
2731 | return -ENODEV; | |
2732 | } | |
2733 | ||
45a110a1 CK |
2734 | skip_search: |
2735 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2736 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2737 | ||
2553628e LPC |
2738 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2739 | route->connected); | |
2740 | if (ret) | |
2741 | goto err; | |
2742 | ||
2743 | return 0; | |
2b97eabc | 2744 | err: |
30a6a1a4 | 2745 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2746 | source, route->control, sink); |
2b97eabc RP |
2747 | return ret; |
2748 | } | |
105f1c28 | 2749 | |
efcc3c61 MB |
2750 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2751 | const struct snd_soc_dapm_route *route) | |
2752 | { | |
6dd98b0a | 2753 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2754 | struct snd_soc_dapm_path *path, *p; |
2755 | const char *sink; | |
2756 | const char *source; | |
2757 | char prefixed_sink[80]; | |
2758 | char prefixed_source[80]; | |
94f99c87 | 2759 | const char *prefix; |
efcc3c61 MB |
2760 | |
2761 | if (route->control) { | |
2762 | dev_err(dapm->dev, | |
30a6a1a4 | 2763 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2764 | return -EINVAL; |
2765 | } | |
2766 | ||
94f99c87 LPC |
2767 | prefix = soc_dapm_prefix(dapm); |
2768 | if (prefix) { | |
efcc3c61 | 2769 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2770 | prefix, route->sink); |
efcc3c61 MB |
2771 | sink = prefixed_sink; |
2772 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2773 | prefix, route->source); |
efcc3c61 MB |
2774 | source = prefixed_source; |
2775 | } else { | |
2776 | sink = route->sink; | |
2777 | source = route->source; | |
2778 | } | |
2779 | ||
2780 | path = NULL; | |
2781 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2782 | if (strcmp(p->source->name, source) != 0) | |
2783 | continue; | |
2784 | if (strcmp(p->sink->name, sink) != 0) | |
2785 | continue; | |
2786 | path = p; | |
2787 | break; | |
2788 | } | |
2789 | ||
2790 | if (path) { | |
6dd98b0a LPC |
2791 | wsource = path->source; |
2792 | wsink = path->sink; | |
2793 | ||
2794 | dapm_mark_dirty(wsource, "Route removed"); | |
2795 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2796 | if (path->connect) |
2797 | dapm_path_invalidate(path); | |
efcc3c61 | 2798 | |
8872293f | 2799 | dapm_free_path(path); |
6dd98b0a LPC |
2800 | |
2801 | /* Update any path related flags */ | |
2802 | dapm_update_widget_flags(wsource); | |
2803 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2804 | } else { |
30a6a1a4 | 2805 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2806 | source, sink); |
2807 | } | |
2808 | ||
2809 | return 0; | |
2810 | } | |
2811 | ||
105f1c28 MB |
2812 | /** |
2813 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2814 | * @dapm: DAPM context |
105f1c28 MB |
2815 | * @route: audio routes |
2816 | * @num: number of routes | |
2817 | * | |
2818 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2819 | * the widget receiving the audio signal, whilst the source is the sender | |
2820 | * of the audio signal. | |
2821 | * | |
2822 | * Returns 0 for success else error. On error all resources can be freed | |
2823 | * with a call to snd_soc_card_free(). | |
2824 | */ | |
ce6120cc | 2825 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2826 | const struct snd_soc_dapm_route *route, int num) |
2827 | { | |
62d4a4b9 | 2828 | int i, r, ret = 0; |
105f1c28 | 2829 | |
a73fb2df | 2830 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2831 | for (i = 0; i < num; i++) { |
a4e9154c | 2832 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2833 | if (r < 0) { |
30a6a1a4 LG |
2834 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2835 | route->source, | |
2836 | route->control ? route->control : "direct", | |
2837 | route->sink); | |
62d4a4b9 | 2838 | ret = r; |
105f1c28 MB |
2839 | } |
2840 | route++; | |
2841 | } | |
a73fb2df | 2842 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2843 | |
60884c27 | 2844 | return ret; |
105f1c28 MB |
2845 | } |
2846 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2847 | ||
efcc3c61 MB |
2848 | /** |
2849 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2850 | * @dapm: DAPM context | |
2851 | * @route: audio routes | |
2852 | * @num: number of routes | |
2853 | * | |
2854 | * Removes routes from the DAPM context. | |
2855 | */ | |
2856 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2857 | const struct snd_soc_dapm_route *route, int num) | |
2858 | { | |
e066ea22 | 2859 | int i; |
efcc3c61 MB |
2860 | |
2861 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2862 | for (i = 0; i < num; i++) { | |
2863 | snd_soc_dapm_del_route(dapm, route); | |
2864 | route++; | |
2865 | } | |
2866 | mutex_unlock(&dapm->card->dapm_mutex); | |
2867 | ||
e066ea22 | 2868 | return 0; |
efcc3c61 MB |
2869 | } |
2870 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2871 | ||
bf3a9e13 MB |
2872 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2873 | const struct snd_soc_dapm_route *route) | |
2874 | { | |
2875 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2876 | route->source, | |
2877 | true); | |
2878 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2879 | route->sink, | |
2880 | true); | |
2881 | struct snd_soc_dapm_path *path; | |
2882 | int count = 0; | |
2883 | ||
2884 | if (!source) { | |
30a6a1a4 | 2885 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2886 | route->source); |
2887 | return -ENODEV; | |
2888 | } | |
2889 | ||
2890 | if (!sink) { | |
30a6a1a4 | 2891 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2892 | route->sink); |
2893 | return -ENODEV; | |
2894 | } | |
2895 | ||
2896 | if (route->control || route->connected) | |
30a6a1a4 | 2897 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2898 | route->source, route->sink); |
2899 | ||
e63bfd45 | 2900 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
2901 | if (path->sink == sink) { |
2902 | path->weak = 1; | |
2903 | count++; | |
2904 | } | |
2905 | } | |
2906 | ||
2907 | if (count == 0) | |
30a6a1a4 | 2908 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2909 | route->source, route->sink); |
2910 | if (count > 1) | |
30a6a1a4 | 2911 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2912 | count, route->source, route->sink); |
2913 | ||
2914 | return 0; | |
2915 | } | |
2916 | ||
2917 | /** | |
2918 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2919 | * @dapm: DAPM context | |
2920 | * @route: audio routes | |
2921 | * @num: number of routes | |
2922 | * | |
2923 | * Mark existing routes matching those specified in the passed array | |
2924 | * as being weak, meaning that they are ignored for the purpose of | |
2925 | * power decisions. The main intended use case is for sidetone paths | |
2926 | * which couple audio between other independent paths if they are both | |
2927 | * active in order to make the combination work better at the user | |
2928 | * level but which aren't intended to be "used". | |
2929 | * | |
2930 | * Note that CODEC drivers should not use this as sidetone type paths | |
2931 | * can frequently also be used as bypass paths. | |
2932 | */ | |
2933 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2934 | const struct snd_soc_dapm_route *route, int num) | |
2935 | { | |
2936 | int i, err; | |
2937 | int ret = 0; | |
2938 | ||
a73fb2df | 2939 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2940 | for (i = 0; i < num; i++) { |
2941 | err = snd_soc_dapm_weak_route(dapm, route); | |
2942 | if (err) | |
2943 | ret = err; | |
2944 | route++; | |
2945 | } | |
a73fb2df | 2946 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2947 | |
2948 | return ret; | |
2949 | } | |
2950 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2951 | ||
2b97eabc RP |
2952 | /** |
2953 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 2954 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
2955 | * |
2956 | * Checks the codec for any new dapm widgets and creates them if found. | |
2957 | * | |
2958 | * Returns 0 for success. | |
2959 | */ | |
824ef826 | 2960 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2961 | { |
2962 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2963 | unsigned int val; |
2b97eabc | 2964 | |
95dd5cd6 | 2965 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2966 | |
95dd5cd6 | 2967 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2968 | { |
2969 | if (w->new) | |
2970 | continue; | |
2971 | ||
fad59888 SW |
2972 | if (w->num_kcontrols) { |
2973 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2974 | sizeof(struct snd_kcontrol *), | |
2975 | GFP_KERNEL); | |
a73fb2df | 2976 | if (!w->kcontrols) { |
95dd5cd6 | 2977 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2978 | return -ENOMEM; |
a73fb2df | 2979 | } |
fad59888 SW |
2980 | } |
2981 | ||
2b97eabc RP |
2982 | switch(w->id) { |
2983 | case snd_soc_dapm_switch: | |
2984 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2985 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2986 | dapm_new_mixer(w); |
2b97eabc RP |
2987 | break; |
2988 | case snd_soc_dapm_mux: | |
d714f97c | 2989 | case snd_soc_dapm_demux: |
4b80b8c2 | 2990 | dapm_new_mux(w); |
2b97eabc | 2991 | break; |
2b97eabc | 2992 | case snd_soc_dapm_pga: |
d88429a6 | 2993 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2994 | dapm_new_pga(w); |
2b97eabc | 2995 | break; |
c6615082 NO |
2996 | case snd_soc_dapm_dai_link: |
2997 | dapm_new_dai_link(w); | |
2998 | break; | |
7ca3a18b | 2999 | default: |
2b97eabc RP |
3000 | break; |
3001 | } | |
b66a70d5 MB |
3002 | |
3003 | /* Read the initial power state from the device */ | |
3004 | if (w->reg >= 0) { | |
ce0fc93a | 3005 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 3006 | val = val >> w->shift; |
de9ba98b LPC |
3007 | val &= w->mask; |
3008 | if (val == w->on_val) | |
b66a70d5 MB |
3009 | w->power = 1; |
3010 | } | |
3011 | ||
2b97eabc | 3012 | w->new = 1; |
d5d1e0be | 3013 | |
7508b12a | 3014 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 3015 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
3016 | } |
3017 | ||
95dd5cd6 LPC |
3018 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
3019 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
3020 | return 0; |
3021 | } | |
3022 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
3023 | ||
3024 | /** | |
3025 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
3026 | * @kcontrol: mixer control | |
ac11a2b3 | 3027 | * @ucontrol: control element information |
2b97eabc RP |
3028 | * |
3029 | * Callback to get the value of a dapm mixer control. | |
3030 | * | |
3031 | * Returns 0 for success. | |
3032 | */ | |
3033 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3034 | struct snd_ctl_elem_value *ucontrol) | |
3035 | { | |
ce0fc93a LPC |
3036 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3037 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3038 | struct soc_mixer_control *mc = |
3039 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3040 | int reg = mc->reg; |
815ecf8d | 3041 | unsigned int shift = mc->shift; |
4eaa9819 | 3042 | int max = mc->max; |
815ecf8d | 3043 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3044 | unsigned int invert = mc->invert; |
57295073 | 3045 | unsigned int val; |
ce0fc93a | 3046 | int ret = 0; |
da602ab8 BT |
3047 | |
3048 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 3049 | dev_warn(dapm->dev, |
30a6a1a4 | 3050 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 3051 | kcontrol->id.name); |
2b97eabc | 3052 | |
57295073 | 3053 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
3054 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
3055 | ret = soc_dapm_read(dapm, reg, &val); | |
3056 | val = (val >> shift) & mask; | |
3057 | } else { | |
57295073 | 3058 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 3059 | } |
57295073 LPC |
3060 | mutex_unlock(&card->dapm_mutex); |
3061 | ||
01ad5e7d CYT |
3062 | if (ret) |
3063 | return ret; | |
3064 | ||
da602ab8 | 3065 | if (invert) |
57295073 LPC |
3066 | ucontrol->value.integer.value[0] = max - val; |
3067 | else | |
3068 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3069 | |
ce0fc93a | 3070 | return ret; |
2b97eabc RP |
3071 | } |
3072 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3073 | ||
3074 | /** | |
3075 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3076 | * @kcontrol: mixer control | |
ac11a2b3 | 3077 | * @ucontrol: control element information |
2b97eabc RP |
3078 | * |
3079 | * Callback to set the value of a dapm mixer control. | |
3080 | * | |
3081 | * Returns 0 for success. | |
3082 | */ | |
3083 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3084 | struct snd_ctl_elem_value *ucontrol) | |
3085 | { | |
ce0fc93a LPC |
3086 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3087 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3088 | struct soc_mixer_control *mc = |
3089 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3090 | int reg = mc->reg; |
815ecf8d | 3091 | unsigned int shift = mc->shift; |
4eaa9819 | 3092 | int max = mc->max; |
815ecf8d JS |
3093 | unsigned int mask = (1 << fls(max)) - 1; |
3094 | unsigned int invert = mc->invert; | |
e9cf7049 | 3095 | unsigned int val; |
18626c7e | 3096 | int connect, change, reg_change = 0; |
97404f2e | 3097 | struct snd_soc_dapm_update update; |
52765976 | 3098 | int ret = 0; |
2b97eabc | 3099 | |
da602ab8 | 3100 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3101 | dev_warn(dapm->dev, |
30a6a1a4 | 3102 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3103 | kcontrol->id.name); |
3104 | ||
2b97eabc | 3105 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3106 | connect = !!val; |
2b97eabc RP |
3107 | |
3108 | if (invert) | |
a7a4ac86 | 3109 | val = max - val; |
2b97eabc | 3110 | |
3cd04343 | 3111 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3112 | |
249ce138 | 3113 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3114 | |
18626c7e JN |
3115 | if (reg != SND_SOC_NOPM) { |
3116 | mask = mask << shift; | |
3117 | val = val << shift; | |
3118 | ||
ce0fc93a | 3119 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3120 | } |
3121 | ||
3122 | if (change || reg_change) { | |
3123 | if (reg_change) { | |
3124 | update.kcontrol = kcontrol; | |
3125 | update.reg = reg; | |
3126 | update.mask = mask; | |
3127 | update.val = val; | |
3128 | card->update = &update; | |
249ce138 | 3129 | } |
18626c7e | 3130 | change |= reg_change; |
97404f2e | 3131 | |
52765976 | 3132 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3133 | |
564c6504 | 3134 | card->update = NULL; |
283375ce MB |
3135 | } |
3136 | ||
a73fb2df | 3137 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3138 | |
3139 | if (ret > 0) | |
3140 | soc_dpcm_runtime_update(card); | |
3141 | ||
56a67834 | 3142 | return change; |
2b97eabc RP |
3143 | } |
3144 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3145 | ||
3146 | /** | |
3147 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3148 | * @kcontrol: mixer control | |
ac11a2b3 | 3149 | * @ucontrol: control element information |
2b97eabc RP |
3150 | * |
3151 | * Callback to get the value of a dapm enumerated double mixer control. | |
3152 | * | |
3153 | * Returns 0 for success. | |
3154 | */ | |
3155 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3156 | struct snd_ctl_elem_value *ucontrol) | |
3157 | { | |
ce0fc93a | 3158 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3159 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3160 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3161 | unsigned int reg_val, val; |
52765976 | 3162 | |
561ed680 CK |
3163 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3164 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3165 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3166 | if (ret) { |
3167 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3168 | return ret; |
964a0b89 | 3169 | } |
69128316 | 3170 | } else { |
236aaa68 | 3171 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3172 | } |
561ed680 | 3173 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3174 | |
2e72f8e3 | 3175 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3176 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3177 | if (e->shift_l != e->shift_r) { |
3178 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3179 | val = snd_soc_enum_val_to_item(e, val); |
3180 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3181 | } |
3182 | ||
69128316 | 3183 | return 0; |
2e72f8e3 | 3184 | } |
2b97eabc | 3185 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3186 | |
3187 | /** | |
2b97eabc | 3188 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3189 | * @kcontrol: mixer control |
3190 | * @ucontrol: control element information | |
3191 | * | |
2b97eabc | 3192 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3193 | * |
3194 | * Returns 0 for success. | |
3195 | */ | |
2b97eabc | 3196 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3197 | struct snd_ctl_elem_value *ucontrol) |
3198 | { | |
ce0fc93a LPC |
3199 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3200 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3201 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3202 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3203 | unsigned int val, change, reg_change = 0; |
46f5822f | 3204 | unsigned int mask; |
97404f2e | 3205 | struct snd_soc_dapm_update update; |
52765976 | 3206 | int ret = 0; |
2e72f8e3 | 3207 | |
3727b496 | 3208 | if (item[0] >= e->items) |
2e72f8e3 | 3209 | return -EINVAL; |
3727b496 LPC |
3210 | |
3211 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3212 | mask = e->mask << e->shift_l; |
3213 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3214 | if (item[1] > e->items) |
2e72f8e3 | 3215 | return -EINVAL; |
071133a2 | 3216 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; |
2e72f8e3 PU |
3217 | mask |= e->mask << e->shift_r; |
3218 | } | |
3219 | ||
3cd04343 | 3220 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3221 | |
561ed680 CK |
3222 | change = dapm_kcontrol_set_value(kcontrol, val); |
3223 | ||
236aaa68 | 3224 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3225 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3226 | |
561ed680 CK |
3227 | if (change || reg_change) { |
3228 | if (reg_change) { | |
236aaa68 LPC |
3229 | update.kcontrol = kcontrol; |
3230 | update.reg = e->reg; | |
3231 | update.mask = mask; | |
3232 | update.val = val; | |
3233 | card->update = &update; | |
3234 | } | |
561ed680 | 3235 | change |= reg_change; |
1642e3d4 | 3236 | |
3727b496 | 3237 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3238 | |
564c6504 | 3239 | card->update = NULL; |
fafd2176 | 3240 | } |
2e72f8e3 | 3241 | |
a73fb2df | 3242 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3243 | |
3244 | if (ret > 0) | |
3245 | soc_dpcm_runtime_update(card); | |
3246 | ||
97404f2e | 3247 | return change; |
2e72f8e3 | 3248 | } |
2b97eabc | 3249 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3250 | |
8b37dbd2 MB |
3251 | /** |
3252 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3253 | * | |
3254 | * @kcontrol: mixer control | |
3255 | * @uinfo: control element information | |
3256 | * | |
3257 | * Callback to provide information about a pin switch control. | |
3258 | */ | |
3259 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3260 | struct snd_ctl_elem_info *uinfo) | |
3261 | { | |
3262 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3263 | uinfo->count = 1; | |
3264 | uinfo->value.integer.min = 0; | |
3265 | uinfo->value.integer.max = 1; | |
3266 | ||
3267 | return 0; | |
3268 | } | |
3269 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3270 | ||
3271 | /** | |
3272 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3273 | * | |
3274 | * @kcontrol: mixer control | |
3275 | * @ucontrol: Value | |
3276 | */ | |
3277 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3278 | struct snd_ctl_elem_value *ucontrol) | |
3279 | { | |
48a8c394 | 3280 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3281 | const char *pin = (const char *)kcontrol->private_value; |
3282 | ||
3cd04343 | 3283 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3284 | |
3285 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3286 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3287 | |
a73fb2df | 3288 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3289 | |
3290 | return 0; | |
3291 | } | |
3292 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3293 | ||
3294 | /** | |
3295 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3296 | * | |
3297 | * @kcontrol: mixer control | |
3298 | * @ucontrol: Value | |
3299 | */ | |
3300 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3301 | struct snd_ctl_elem_value *ucontrol) | |
3302 | { | |
48a8c394 | 3303 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3304 | const char *pin = (const char *)kcontrol->private_value; |
3305 | ||
8b37dbd2 | 3306 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3307 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3308 | else |
48a8c394 | 3309 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3310 | |
a73fb2df | 3311 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3312 | return 0; |
3313 | } | |
3314 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3315 | ||
cc76e7de | 3316 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3317 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3318 | const struct snd_soc_dapm_widget *widget) |
3319 | { | |
3320 | struct snd_soc_dapm_widget *w; | |
3321 | ||
3322 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3323 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
de415c81 LW |
3324 | /* Do not nag about probe deferrals */ |
3325 | if (IS_ERR(w)) { | |
3326 | int ret = PTR_ERR(w); | |
3327 | ||
3328 | if (ret != -EPROBE_DEFER) | |
3329 | dev_err(dapm->dev, | |
3330 | "ASoC: Failed to create DAPM control %s (%d)\n", | |
3331 | widget->name, ret); | |
3332 | goto out_unlock; | |
3333 | } | |
02aa78ab LG |
3334 | if (!w) |
3335 | dev_err(dapm->dev, | |
3336 | "ASoC: Failed to create DAPM control %s\n", | |
3337 | widget->name); | |
3338 | ||
de415c81 | 3339 | out_unlock: |
02aa78ab LG |
3340 | mutex_unlock(&dapm->card->dapm_mutex); |
3341 | return w; | |
3342 | } | |
a5d5639f | 3343 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); |
02aa78ab LG |
3344 | |
3345 | struct snd_soc_dapm_widget * | |
3346 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3347 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3348 | { |
a3423b02 | 3349 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3350 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3351 | const char *prefix; |
62ea874a | 3352 | int ret; |
2b97eabc RP |
3353 | |
3354 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3355 | return NULL; |
2b97eabc | 3356 | |
62ea874a MB |
3357 | switch (w->id) { |
3358 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3359 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3360 | if (IS_ERR(w->regulator)) { | |
3361 | ret = PTR_ERR(w->regulator); | |
de415c81 LW |
3362 | if (ret == -EPROBE_DEFER) |
3363 | return ERR_PTR(ret); | |
30a6a1a4 | 3364 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3365 | w->name, ret); |
5ba06fc9 | 3366 | return NULL; |
62ea874a | 3367 | } |
8784c77a | 3368 | |
de9ba98b | 3369 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3370 | ret = regulator_allow_bypass(w->regulator, true); |
3371 | if (ret != 0) | |
3372 | dev_warn(w->dapm->dev, | |
30686c35 | 3373 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3374 | w->name, ret); |
3375 | } | |
62ea874a | 3376 | break; |
d7e7eb91 | 3377 | case snd_soc_dapm_clock_supply: |
165961ef | 3378 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3379 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3380 | if (IS_ERR(w->clk)) { |
3381 | ret = PTR_ERR(w->clk); | |
de415c81 LW |
3382 | if (ret == -EPROBE_DEFER) |
3383 | return ERR_PTR(ret); | |
30a6a1a4 | 3384 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3385 | w->name, ret); |
3386 | return NULL; | |
3387 | } | |
ec02995a MB |
3388 | #else |
3389 | return NULL; | |
3390 | #endif | |
d7e7eb91 | 3391 | break; |
62ea874a MB |
3392 | default: |
3393 | break; | |
3394 | } | |
2b97eabc | 3395 | |
94f99c87 | 3396 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3397 | if (prefix) |
94f99c87 | 3398 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3399 | else |
48068961 | 3400 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3401 | if (w->name == NULL) { |
3402 | kfree(w); | |
5ba06fc9 | 3403 | return NULL; |
ead9b919 | 3404 | } |
ead9b919 | 3405 | |
7ca3a18b | 3406 | switch (w->id) { |
6dd98b0a | 3407 | case snd_soc_dapm_mic: |
a3423b02 | 3408 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3409 | w->power_check = dapm_generic_check_power; |
3410 | break; | |
86d75003 LPC |
3411 | case snd_soc_dapm_input: |
3412 | if (!dapm->card->fully_routed) | |
a3423b02 | 3413 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3414 | w->power_check = dapm_generic_check_power; |
3415 | break; | |
6dd98b0a LPC |
3416 | case snd_soc_dapm_spk: |
3417 | case snd_soc_dapm_hp: | |
a3423b02 | 3418 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3419 | w->power_check = dapm_generic_check_power; |
3420 | break; | |
86d75003 LPC |
3421 | case snd_soc_dapm_output: |
3422 | if (!dapm->card->fully_routed) | |
a3423b02 | 3423 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3424 | w->power_check = dapm_generic_check_power; |
3425 | break; | |
6dd98b0a LPC |
3426 | case snd_soc_dapm_vmid: |
3427 | case snd_soc_dapm_siggen: | |
a3423b02 | 3428 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3429 | w->power_check = dapm_always_on_check_power; |
3430 | break; | |
56b4437f VK |
3431 | case snd_soc_dapm_sink: |
3432 | w->is_ep = SND_SOC_DAPM_EP_SINK; | |
3433 | w->power_check = dapm_always_on_check_power; | |
3434 | break; | |
3435 | ||
6dd98b0a | 3436 | case snd_soc_dapm_mux: |
d714f97c | 3437 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3438 | case snd_soc_dapm_switch: |
3439 | case snd_soc_dapm_mixer: | |
3440 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3441 | case snd_soc_dapm_adc: |
3442 | case snd_soc_dapm_aif_out: | |
3443 | case snd_soc_dapm_dac: | |
3444 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3445 | case snd_soc_dapm_pga: |
3446 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3447 | case snd_soc_dapm_micbias: |
7ca3a18b | 3448 | case snd_soc_dapm_line: |
c74184ed | 3449 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3450 | case snd_soc_dapm_dai_out: |
3451 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3452 | w->power_check = dapm_generic_check_power; |
3453 | break; | |
3454 | case snd_soc_dapm_supply: | |
62ea874a | 3455 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3456 | case snd_soc_dapm_clock_supply: |
57295073 | 3457 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3458 | w->is_supply = 1; |
7ca3a18b MB |
3459 | w->power_check = dapm_supply_check_power; |
3460 | break; | |
3461 | default: | |
3462 | w->power_check = dapm_always_on_check_power; | |
3463 | break; | |
3464 | } | |
3465 | ||
ce6120cc | 3466 | w->dapm = dapm; |
2b97eabc | 3467 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3468 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3469 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3470 | |
a3423b02 LPC |
3471 | snd_soc_dapm_for_each_direction(dir) { |
3472 | INIT_LIST_HEAD(&w->edges[dir]); | |
3473 | w->endpoints[dir] = -1; | |
3474 | } | |
92a99ea4 | 3475 | |
c8046000 | 3476 | /* machine layer sets up unconnected pins and insertions */ |
2b97eabc | 3477 | w->connected = 1; |
5ba06fc9 | 3478 | return w; |
2b97eabc | 3479 | } |
2b97eabc | 3480 | |
4ba1327a MB |
3481 | /** |
3482 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3483 | * @dapm: DAPM context |
4ba1327a MB |
3484 | * @widget: widget array |
3485 | * @num: number of widgets | |
3486 | * | |
3487 | * Creates new DAPM controls based upon the templates. | |
3488 | * | |
3489 | * Returns 0 for success else error. | |
3490 | */ | |
ce6120cc | 3491 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3492 | const struct snd_soc_dapm_widget *widget, |
3493 | int num) | |
3494 | { | |
5ba06fc9 MB |
3495 | struct snd_soc_dapm_widget *w; |
3496 | int i; | |
60884c27 | 3497 | int ret = 0; |
4ba1327a | 3498 | |
a73fb2df | 3499 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3500 | for (i = 0; i < num; i++) { |
02aa78ab | 3501 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
de415c81 LW |
3502 | if (IS_ERR(w)) { |
3503 | ret = PTR_ERR(w); | |
3504 | /* Do not nag about probe deferrals */ | |
3505 | if (ret == -EPROBE_DEFER) | |
3506 | break; | |
3507 | dev_err(dapm->dev, | |
3508 | "ASoC: Failed to create DAPM control %s (%d)\n", | |
3509 | widget->name, ret); | |
3510 | break; | |
3511 | } | |
5ba06fc9 | 3512 | if (!w) { |
f7d41ae8 | 3513 | dev_err(dapm->dev, |
5ba06fc9 MB |
3514 | "ASoC: Failed to create DAPM control %s\n", |
3515 | widget->name); | |
60884c27 DC |
3516 | ret = -ENOMEM; |
3517 | break; | |
b8b33cb5 | 3518 | } |
4ba1327a MB |
3519 | widget++; |
3520 | } | |
a73fb2df | 3521 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3522 | return ret; |
4ba1327a MB |
3523 | } |
3524 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3525 | ||
c74184ed MB |
3526 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3527 | struct snd_kcontrol *kcontrol, int event) | |
3528 | { | |
3529 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3530 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3531 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3532 | struct snd_pcm_substream substream; |
9747cec2 | 3533 | struct snd_pcm_hw_params *params = NULL; |
8053f216 | 3534 | struct snd_pcm_runtime *runtime = NULL; |
c74184ed MB |
3535 | u64 fmt; |
3536 | int ret; | |
3537 | ||
bf4edea8 | 3538 | if (WARN_ON(!config) || |
a3423b02 LPC |
3539 | WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || |
3540 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
bf4edea8 | 3541 | return -EINVAL; |
c74184ed MB |
3542 | |
3543 | /* We only support a single source and sink, pick the first */ | |
a3423b02 LPC |
3544 | source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], |
3545 | struct snd_soc_dapm_path, | |
3546 | list_node[SND_SOC_DAPM_DIR_OUT]); | |
3547 | sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], | |
3548 | struct snd_soc_dapm_path, | |
3549 | list_node[SND_SOC_DAPM_DIR_IN]); | |
c74184ed MB |
3550 | |
3551 | source = source_p->source->priv; | |
3552 | sink = sink_p->sink->priv; | |
3553 | ||
3554 | /* Be a little careful as we don't want to overflow the mask array */ | |
3555 | if (config->formats) { | |
3556 | fmt = ffs(config->formats) - 1; | |
3557 | } else { | |
30a6a1a4 | 3558 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3559 | config->formats); |
3560 | fmt = 0; | |
3561 | } | |
3562 | ||
3563 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3564 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3565 | if (!params) { | |
3566 | ret = -ENOMEM; | |
3567 | goto out; | |
3568 | } | |
3569 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3570 | |
9747cec2 | 3571 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3572 | config->rate_min; |
9747cec2 | 3573 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3574 | config->rate_max; |
3575 | ||
9747cec2 | 3576 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3577 | = config->channels_min; |
9747cec2 | 3578 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3579 | = config->channels_max; |
3580 | ||
3581 | memset(&substream, 0, sizeof(substream)); | |
3582 | ||
8053f216 NC |
3583 | /* Allocate a dummy snd_pcm_runtime for startup() and other ops() */ |
3584 | runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); | |
3585 | if (!runtime) { | |
3586 | ret = -ENOMEM; | |
3587 | goto out; | |
3588 | } | |
3589 | substream.runtime = runtime; | |
3590 | ||
c74184ed MB |
3591 | switch (event) { |
3592 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a | 3593 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
9b8ef9f6 JK |
3594 | if (source->driver->ops && source->driver->ops->startup) { |
3595 | ret = source->driver->ops->startup(&substream, source); | |
3596 | if (ret < 0) { | |
3597 | dev_err(source->dev, | |
3598 | "ASoC: startup() failed: %d\n", ret); | |
3599 | goto out; | |
3600 | } | |
3601 | source->active++; | |
3602 | } | |
93e6958a BC |
3603 | ret = soc_dai_hw_params(&substream, params, source); |
3604 | if (ret < 0) | |
3605 | goto out; | |
c74184ed | 3606 | |
93e6958a | 3607 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
9b8ef9f6 JK |
3608 | if (sink->driver->ops && sink->driver->ops->startup) { |
3609 | ret = sink->driver->ops->startup(&substream, sink); | |
3610 | if (ret < 0) { | |
3611 | dev_err(sink->dev, | |
3612 | "ASoC: startup() failed: %d\n", ret); | |
3613 | goto out; | |
3614 | } | |
3615 | sink->active++; | |
3616 | } | |
93e6958a BC |
3617 | ret = soc_dai_hw_params(&substream, params, sink); |
3618 | if (ret < 0) | |
3619 | goto out; | |
c74184ed MB |
3620 | break; |
3621 | ||
3622 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3623 | ret = snd_soc_dai_digital_mute(sink, 0, |
3624 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3625 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3626 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3627 | ret = 0; |
c74184ed MB |
3628 | break; |
3629 | ||
3630 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3631 | ret = snd_soc_dai_digital_mute(sink, 1, |
3632 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3633 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3634 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3635 | ret = 0; |
9b8ef9f6 JK |
3636 | |
3637 | source->active--; | |
3638 | if (source->driver->ops && source->driver->ops->shutdown) { | |
3639 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3640 | source->driver->ops->shutdown(&substream, source); | |
3641 | } | |
3642 | ||
3643 | sink->active--; | |
3644 | if (sink->driver->ops && sink->driver->ops->shutdown) { | |
3645 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3646 | sink->driver->ops->shutdown(&substream, sink); | |
3647 | } | |
c74184ed MB |
3648 | break; |
3649 | ||
3650 | default: | |
a6ed0608 | 3651 | WARN(1, "Unknown event %d\n", event); |
75881df3 | 3652 | ret = -EINVAL; |
c74184ed MB |
3653 | } |
3654 | ||
9747cec2 | 3655 | out: |
8053f216 | 3656 | kfree(runtime); |
9747cec2 MB |
3657 | kfree(params); |
3658 | return ret; | |
c74184ed MB |
3659 | } |
3660 | ||
c6615082 NO |
3661 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3662 | struct snd_ctl_elem_value *ucontrol) | |
3663 | { | |
3664 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3665 | ||
741338f9 | 3666 | ucontrol->value.enumerated.item[0] = w->params_select; |
c6615082 NO |
3667 | |
3668 | return 0; | |
3669 | } | |
3670 | ||
3671 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3672 | struct snd_ctl_elem_value *ucontrol) | |
3673 | { | |
3674 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3675 | ||
3676 | /* Can't change the config when widget is already powered */ | |
3677 | if (w->power) | |
3678 | return -EBUSY; | |
3679 | ||
741338f9 | 3680 | if (ucontrol->value.enumerated.item[0] == w->params_select) |
c6615082 NO |
3681 | return 0; |
3682 | ||
741338f9 | 3683 | if (ucontrol->value.enumerated.item[0] >= w->num_params) |
c6615082 NO |
3684 | return -EINVAL; |
3685 | ||
741338f9 | 3686 | w->params_select = ucontrol->value.enumerated.item[0]; |
c6615082 NO |
3687 | |
3688 | return 0; | |
3689 | } | |
3690 | ||
c74184ed MB |
3691 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3692 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3693 | unsigned int num_params, |
c74184ed MB |
3694 | struct snd_soc_dapm_widget *source, |
3695 | struct snd_soc_dapm_widget *sink) | |
3696 | { | |
c74184ed MB |
3697 | struct snd_soc_dapm_widget template; |
3698 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3699 | char *link_name; |
c6615082 NO |
3700 | int ret, count; |
3701 | unsigned long private_value; | |
3702 | const char **w_param_text; | |
3703 | struct soc_enum w_param_enum[] = { | |
3704 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3705 | }; | |
3706 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3707 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3708 | snd_soc_dapm_dai_link_get, | |
3709 | snd_soc_dapm_dai_link_put), | |
3710 | }; | |
3711 | const struct snd_soc_pcm_stream *config = params; | |
3712 | ||
3713 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3714 | sizeof(char *), GFP_KERNEL); | |
3715 | if (!w_param_text) | |
c74184ed | 3716 | return -ENOMEM; |
c74184ed | 3717 | |
46172b6c CK |
3718 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3719 | source->name, sink->name); | |
c6615082 NO |
3720 | if (!link_name) { |
3721 | ret = -ENOMEM; | |
3722 | goto outfree_w_param; | |
3723 | } | |
c74184ed | 3724 | |
c6615082 NO |
3725 | for (count = 0 ; count < num_params; count++) { |
3726 | if (!config->stream_name) { | |
3727 | dev_warn(card->dapm.dev, | |
3728 | "ASoC: anonymous config %d for dai link %s\n", | |
3729 | count, link_name); | |
c6615082 | 3730 | w_param_text[count] = |
46172b6c CK |
3731 | devm_kasprintf(card->dev, GFP_KERNEL, |
3732 | "Anonymous Configuration %d", | |
3733 | count); | |
c6615082 NO |
3734 | if (!w_param_text[count]) { |
3735 | ret = -ENOMEM; | |
3736 | goto outfree_link_name; | |
3737 | } | |
c6615082 NO |
3738 | } else { |
3739 | w_param_text[count] = devm_kmemdup(card->dev, | |
3740 | config->stream_name, | |
3741 | strlen(config->stream_name) + 1, | |
3742 | GFP_KERNEL); | |
3743 | if (!w_param_text[count]) { | |
3744 | ret = -ENOMEM; | |
3745 | goto outfree_link_name; | |
3746 | } | |
3747 | } | |
3748 | config++; | |
3749 | } | |
3750 | w_param_enum[0].items = num_params; | |
3751 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3752 | |
3753 | memset(&template, 0, sizeof(template)); | |
3754 | template.reg = SND_SOC_NOPM; | |
3755 | template.id = snd_soc_dapm_dai_link; | |
3756 | template.name = link_name; | |
3757 | template.event = snd_soc_dai_link_event; | |
3758 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3759 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3760 | template.num_kcontrols = 1; |
3761 | /* duplicate w_param_enum on heap so that memory persists */ | |
3762 | private_value = | |
3763 | (unsigned long) devm_kmemdup(card->dev, | |
3764 | (void *)(kcontrol_dai_link[0].private_value), | |
3765 | sizeof(struct soc_enum), GFP_KERNEL); | |
3766 | if (!private_value) { | |
3767 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3768 | link_name); | |
3769 | ret = -ENOMEM; | |
3770 | goto outfree_link_name; | |
3771 | } | |
3772 | kcontrol_dai_link[0].private_value = private_value; | |
3773 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3774 | template.kcontrol_news = | |
3775 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3776 | sizeof(struct snd_kcontrol_new), | |
3777 | GFP_KERNEL); | |
3778 | if (!template.kcontrol_news) { | |
3779 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3780 | link_name); | |
3781 | ret = -ENOMEM; | |
3782 | goto outfree_private_value; | |
3783 | } | |
c74184ed | 3784 | |
30a6a1a4 | 3785 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3786 | |
02aa78ab | 3787 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
de415c81 LW |
3788 | if (IS_ERR(w)) { |
3789 | ret = PTR_ERR(w); | |
3790 | /* Do not nag about probe deferrals */ | |
3791 | if (ret != -EPROBE_DEFER) | |
3792 | dev_err(card->dev, | |
3793 | "ASoC: Failed to create %s widget (%d)\n", | |
3794 | link_name, ret); | |
3795 | goto outfree_kcontrol_news; | |
3796 | } | |
c74184ed | 3797 | if (!w) { |
30a6a1a4 | 3798 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3799 | link_name); |
c6615082 NO |
3800 | ret = -ENOMEM; |
3801 | goto outfree_kcontrol_news; | |
c74184ed MB |
3802 | } |
3803 | ||
3804 | w->params = params; | |
c6615082 | 3805 | w->num_params = num_params; |
c74184ed | 3806 | |
fe83897f LPC |
3807 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3808 | if (ret) | |
c6615082 | 3809 | goto outfree_w; |
fe83897f | 3810 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3811 | |
3812 | outfree_w: | |
3813 | devm_kfree(card->dev, w); | |
3814 | outfree_kcontrol_news: | |
3815 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3816 | outfree_private_value: | |
3817 | devm_kfree(card->dev, (void *)private_value); | |
3818 | outfree_link_name: | |
3819 | devm_kfree(card->dev, link_name); | |
3820 | outfree_w_param: | |
3821 | for (count = 0 ; count < num_params; count++) | |
3822 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3823 | devm_kfree(card->dev, w_param_text); | |
3824 | ||
3825 | return ret; | |
c74184ed MB |
3826 | } |
3827 | ||
888df395 MB |
3828 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3829 | struct snd_soc_dai *dai) | |
2b97eabc | 3830 | { |
888df395 | 3831 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3832 | struct snd_soc_dapm_widget *w; |
3833 | ||
888df395 MB |
3834 | WARN_ON(dapm->dev != dai->dev); |
3835 | ||
3836 | memset(&template, 0, sizeof(template)); | |
3837 | template.reg = SND_SOC_NOPM; | |
3838 | ||
3839 | if (dai->driver->playback.stream_name) { | |
4616274d | 3840 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3841 | template.name = dai->driver->playback.stream_name; |
3842 | template.sname = dai->driver->playback.stream_name; | |
3843 | ||
30a6a1a4 | 3844 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3845 | template.name); |
3846 | ||
02aa78ab | 3847 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
e2d1a42e LW |
3848 | if (IS_ERR(w)) { |
3849 | int ret = PTR_ERR(w); | |
3850 | ||
3851 | /* Do not nag about probe deferrals */ | |
3852 | if (ret != -EPROBE_DEFER) | |
3853 | dev_err(dapm->dev, | |
3854 | "ASoC: Failed to create %s widget (%d)\n", | |
3855 | dai->driver->playback.stream_name, ret); | |
3856 | return ret; | |
3857 | } | |
888df395 | 3858 | if (!w) { |
30a6a1a4 | 3859 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3860 | dai->driver->playback.stream_name); |
298402a3 | 3861 | return -ENOMEM; |
888df395 MB |
3862 | } |
3863 | ||
3864 | w->priv = dai; | |
3865 | dai->playback_widget = w; | |
3866 | } | |
3867 | ||
3868 | if (dai->driver->capture.stream_name) { | |
4616274d | 3869 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3870 | template.name = dai->driver->capture.stream_name; |
3871 | template.sname = dai->driver->capture.stream_name; | |
3872 | ||
30a6a1a4 | 3873 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3874 | template.name); |
3875 | ||
02aa78ab | 3876 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
e2d1a42e LW |
3877 | if (IS_ERR(w)) { |
3878 | int ret = PTR_ERR(w); | |
3879 | ||
3880 | /* Do not nag about probe deferrals */ | |
3881 | if (ret != -EPROBE_DEFER) | |
3882 | dev_err(dapm->dev, | |
3883 | "ASoC: Failed to create %s widget (%d)\n", | |
3884 | dai->driver->playback.stream_name, ret); | |
3885 | return ret; | |
3886 | } | |
888df395 | 3887 | if (!w) { |
30a6a1a4 | 3888 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3889 | dai->driver->capture.stream_name); |
298402a3 | 3890 | return -ENOMEM; |
888df395 MB |
3891 | } |
3892 | ||
3893 | w->priv = dai; | |
3894 | dai->capture_widget = w; | |
3895 | } | |
3896 | ||
3897 | return 0; | |
3898 | } | |
3899 | ||
3900 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3901 | { | |
3902 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3903 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3904 | struct snd_soc_dai *dai; |
888df395 MB |
3905 | |
3906 | /* For each DAI widget... */ | |
3907 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3908 | switch (dai_w->id) { |
3909 | case snd_soc_dapm_dai_in: | |
3910 | case snd_soc_dapm_dai_out: | |
3911 | break; | |
3912 | default: | |
2b97eabc | 3913 | continue; |
4616274d | 3914 | } |
888df395 | 3915 | |
dfbf508f LG |
3916 | /* let users know there is no DAI to link */ |
3917 | if (!dai_w->priv) { | |
3918 | dev_dbg(card->dev, "dai widget %s has no DAI\n", | |
3919 | dai_w->name); | |
3920 | continue; | |
3921 | } | |
3922 | ||
888df395 MB |
3923 | dai = dai_w->priv; |
3924 | ||
3925 | /* ...find all widgets with the same stream and link them */ | |
3926 | list_for_each_entry(w, &card->widgets, list) { | |
3927 | if (w->dapm != dai_w->dapm) | |
3928 | continue; | |
3929 | ||
4616274d MB |
3930 | switch (w->id) { |
3931 | case snd_soc_dapm_dai_in: | |
3932 | case snd_soc_dapm_dai_out: | |
888df395 | 3933 | continue; |
4616274d MB |
3934 | default: |
3935 | break; | |
3936 | } | |
888df395 | 3937 | |
a798c24a | 3938 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
3939 | continue; |
3940 | ||
0f9bd7b1 LPC |
3941 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3942 | src = dai_w; | |
3943 | sink = w; | |
3944 | } else { | |
3945 | src = w; | |
3946 | sink = dai_w; | |
2b97eabc | 3947 | } |
0f9bd7b1 LPC |
3948 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3949 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3950 | } |
3951 | } | |
2b97eabc | 3952 | |
888df395 MB |
3953 | return 0; |
3954 | } | |
64a648c2 | 3955 | |
44ba2641 BC |
3956 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3957 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3958 | { |
44ba2641 | 3959 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3960 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3961 | int i; |
3962 | ||
44ba2641 BC |
3963 | for (i = 0; i < rtd->num_codecs; i++) { |
3964 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f | 3965 | |
b893ea5f LG |
3966 | /* connect BE DAI playback if widgets are valid */ |
3967 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3968 | source = cpu_dai->playback_widget; |
3969 | sink = codec_dai->playback_widget; | |
b893ea5f | 3970 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3971 | cpu_dai->component->name, source->name, |
3972 | codec_dai->component->name, sink->name); | |
b893ea5f | 3973 | |
9887c20b LPC |
3974 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3975 | NULL, NULL); | |
b893ea5f LG |
3976 | } |
3977 | ||
3978 | /* connect BE DAI capture if widgets are valid */ | |
3979 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3980 | source = codec_dai->capture_widget; |
3981 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3982 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3983 | codec_dai->component->name, source->name, |
3984 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3985 | |
9887c20b LPC |
3986 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3987 | NULL, NULL); | |
b893ea5f | 3988 | } |
b893ea5f LG |
3989 | } |
3990 | } | |
3991 | ||
c471fdd1 | 3992 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3993 | int event) |
2b97eabc | 3994 | { |
c471fdd1 | 3995 | struct snd_soc_dapm_widget *w; |
a3423b02 | 3996 | unsigned int ep; |
7bd3a6f3 | 3997 | |
c471fdd1 LPC |
3998 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3999 | w = dai->playback_widget; | |
4000 | else | |
4001 | w = dai->capture_widget; | |
fe360685 | 4002 | |
c471fdd1 LPC |
4003 | if (w) { |
4004 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 4005 | |
a3423b02 LPC |
4006 | if (w->id == snd_soc_dapm_dai_in) { |
4007 | ep = SND_SOC_DAPM_EP_SOURCE; | |
4008 | dapm_widget_invalidate_input_paths(w); | |
4009 | } else { | |
4010 | ep = SND_SOC_DAPM_EP_SINK; | |
4011 | dapm_widget_invalidate_output_paths(w); | |
4012 | } | |
4013 | ||
d9b0951b LG |
4014 | switch (event) { |
4015 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 4016 | w->active = 1; |
a3423b02 | 4017 | w->is_ep = ep; |
d9b0951b LG |
4018 | break; |
4019 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 4020 | w->active = 0; |
a3423b02 | 4021 | w->is_ep = 0; |
d9b0951b LG |
4022 | break; |
4023 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
4024 | case SND_SOC_DAPM_STREAM_RESUME: | |
4025 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
4026 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
4027 | break; | |
4028 | } | |
4029 | } | |
c471fdd1 | 4030 | } |
d9b0951b | 4031 | |
44ba2641 BC |
4032 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
4033 | { | |
1a497983 | 4034 | struct snd_soc_pcm_runtime *rtd; |
44ba2641 BC |
4035 | |
4036 | /* for each BE DAI link... */ | |
1a497983 | 4037 | list_for_each_entry(rtd, &card->rtd_list, list) { |
44ba2641 BC |
4038 | /* |
4039 | * dynamic FE links have no fixed DAI mapping. | |
4040 | * CODEC<->CODEC links have no direct connection. | |
4041 | */ | |
4042 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
4043 | continue; | |
4044 | ||
4045 | dapm_connect_dai_link_widgets(card, rtd); | |
4046 | } | |
4047 | } | |
4048 | ||
c471fdd1 LPC |
4049 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4050 | int event) | |
4051 | { | |
44ba2641 BC |
4052 | int i; |
4053 | ||
c471fdd1 | 4054 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
4055 | for (i = 0; i < rtd->num_codecs; i++) |
4056 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 4057 | |
95dd5cd6 | 4058 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
4059 | } |
4060 | ||
4061 | /** | |
4062 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
4063 | * @rtd: PCM runtime data | |
4064 | * @stream: stream name | |
4065 | * @event: stream event | |
4066 | * | |
4067 | * Sends a stream event to the dapm core. The core then makes any | |
4068 | * necessary widget power changes. | |
4069 | * | |
4070 | * Returns 0 for success else error. | |
4071 | */ | |
d9b0951b LG |
4072 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4073 | int event) | |
ce6120cc | 4074 | { |
a73fb2df | 4075 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 4076 | |
3cd04343 | 4077 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 4078 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 4079 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 4080 | } |
2b97eabc | 4081 | |
11391100 CK |
4082 | /** |
4083 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
4084 | * @dapm: DAPM context | |
4085 | * @pin: pin name | |
4086 | * | |
4087 | * Enables input/output pin and its parents or children widgets iff there is | |
4088 | * a valid audio route and active audio stream. | |
4089 | * | |
4090 | * Requires external locking. | |
4091 | * | |
4092 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4093 | * do any widget power switching. | |
4094 | */ | |
4095 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4096 | const char *pin) | |
4097 | { | |
4098 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
4099 | } | |
4100 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
4101 | ||
2b97eabc | 4102 | /** |
a5302181 | 4103 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 4104 | * @dapm: DAPM context |
a5302181 | 4105 | * @pin: pin name |
2b97eabc | 4106 | * |
74b8f955 | 4107 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 4108 | * a valid audio route and active audio stream. |
11391100 | 4109 | * |
a5302181 LG |
4110 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4111 | * do any widget power switching. | |
2b97eabc | 4112 | */ |
ce6120cc | 4113 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 4114 | { |
11391100 CK |
4115 | int ret; |
4116 | ||
4117 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4118 | ||
4119 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
4120 | ||
4121 | mutex_unlock(&dapm->card->dapm_mutex); | |
4122 | ||
4123 | return ret; | |
a5302181 LG |
4124 | } |
4125 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 4126 | |
da34183e | 4127 | /** |
11391100 | 4128 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4129 | * @dapm: DAPM context |
da34183e MB |
4130 | * @pin: pin name |
4131 | * | |
4132 | * Enables input/output pin regardless of any other state. This is | |
4133 | * intended for use with microphone bias supplies used in microphone | |
4134 | * jack detection. | |
4135 | * | |
11391100 CK |
4136 | * Requires external locking. |
4137 | * | |
da34183e MB |
4138 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4139 | * do any widget power switching. | |
4140 | */ | |
11391100 CK |
4141 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4142 | const char *pin) | |
da34183e | 4143 | { |
91a5fca4 | 4144 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4145 | |
91a5fca4 | 4146 | if (!w) { |
30a6a1a4 | 4147 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4148 | return -EINVAL; |
0d86733c MB |
4149 | } |
4150 | ||
30a6a1a4 | 4151 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4152 | if (!w->connected) { |
4153 | /* | |
4154 | * w->force does not affect the number of input or output paths, | |
4155 | * so we only have to recheck if w->connected is changed | |
4156 | */ | |
4157 | dapm_widget_invalidate_input_paths(w); | |
4158 | dapm_widget_invalidate_output_paths(w); | |
4159 | w->connected = 1; | |
4160 | } | |
91a5fca4 | 4161 | w->force = 1; |
75c1f891 | 4162 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4163 | |
91a5fca4 | 4164 | return 0; |
da34183e | 4165 | } |
11391100 CK |
4166 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4167 | ||
4168 | /** | |
4169 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4170 | * @dapm: DAPM context | |
4171 | * @pin: pin name | |
4172 | * | |
4173 | * Enables input/output pin regardless of any other state. This is | |
4174 | * intended for use with microphone bias supplies used in microphone | |
4175 | * jack detection. | |
4176 | * | |
4177 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4178 | * do any widget power switching. | |
4179 | */ | |
4180 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4181 | const char *pin) | |
4182 | { | |
4183 | int ret; | |
4184 | ||
4185 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4186 | ||
4187 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4188 | ||
4189 | mutex_unlock(&dapm->card->dapm_mutex); | |
4190 | ||
4191 | return ret; | |
4192 | } | |
da34183e MB |
4193 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4194 | ||
11391100 CK |
4195 | /** |
4196 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4197 | * @dapm: DAPM context | |
4198 | * @pin: pin name | |
4199 | * | |
4200 | * Disables input/output pin and its parents or children widgets. | |
4201 | * | |
4202 | * Requires external locking. | |
4203 | * | |
4204 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4205 | * do any widget power switching. | |
4206 | */ | |
4207 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4208 | const char *pin) | |
4209 | { | |
4210 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4211 | } | |
4212 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4213 | ||
a5302181 LG |
4214 | /** |
4215 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4216 | * @dapm: DAPM context |
a5302181 LG |
4217 | * @pin: pin name |
4218 | * | |
74b8f955 | 4219 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4220 | * |
a5302181 LG |
4221 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4222 | * do any widget power switching. | |
4223 | */ | |
ce6120cc LG |
4224 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4225 | const char *pin) | |
a5302181 | 4226 | { |
11391100 CK |
4227 | int ret; |
4228 | ||
4229 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4230 | ||
4231 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4232 | ||
4233 | mutex_unlock(&dapm->card->dapm_mutex); | |
4234 | ||
4235 | return ret; | |
2b97eabc | 4236 | } |
a5302181 | 4237 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4238 | |
11391100 CK |
4239 | /** |
4240 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4241 | * @dapm: DAPM context | |
4242 | * @pin: pin name | |
4243 | * | |
4244 | * Marks the specified pin as being not connected, disabling it along | |
4245 | * any parent or child widgets. At present this is identical to | |
4246 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4247 | * additional things such as disabling controls which only affect | |
4248 | * paths through the pin. | |
4249 | * | |
4250 | * Requires external locking. | |
4251 | * | |
4252 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4253 | * do any widget power switching. | |
4254 | */ | |
4255 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4256 | const char *pin) | |
4257 | { | |
4258 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4259 | } | |
4260 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4261 | ||
5817b52a MB |
4262 | /** |
4263 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4264 | * @dapm: DAPM context |
5817b52a MB |
4265 | * @pin: pin name |
4266 | * | |
4267 | * Marks the specified pin as being not connected, disabling it along | |
4268 | * any parent or child widgets. At present this is identical to | |
4269 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4270 | * additional things such as disabling controls which only affect | |
4271 | * paths through the pin. | |
4272 | * | |
4273 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4274 | * do any widget power switching. | |
4275 | */ | |
ce6120cc | 4276 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4277 | { |
11391100 CK |
4278 | int ret; |
4279 | ||
4280 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4281 | ||
4282 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4283 | ||
4284 | mutex_unlock(&dapm->card->dapm_mutex); | |
4285 | ||
4286 | return ret; | |
5817b52a MB |
4287 | } |
4288 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4289 | ||
eeec12bf | 4290 | /** |
a5302181 | 4291 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4292 | * @dapm: DAPM context |
a5302181 | 4293 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4294 | * |
a5302181 | 4295 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4296 | * |
a5302181 | 4297 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4298 | */ |
ce6120cc LG |
4299 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4300 | const char *pin) | |
eeec12bf | 4301 | { |
91a5fca4 | 4302 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4303 | |
91a5fca4 LPC |
4304 | if (w) |
4305 | return w->connected; | |
a68b38ad | 4306 | |
eeec12bf GG |
4307 | return 0; |
4308 | } | |
a5302181 | 4309 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4310 | |
1547aba9 MB |
4311 | /** |
4312 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4313 | * @dapm: DAPM context |
1547aba9 MB |
4314 | * @pin: audio signal pin endpoint (or start point) |
4315 | * | |
4316 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4317 | * system is disabled a path between two endpoints flagged as ignoring | |
4318 | * suspend will not be disabled. The path must already be enabled via | |
4319 | * normal means at suspend time, it will not be turned on if it was not | |
4320 | * already enabled. | |
4321 | */ | |
ce6120cc LG |
4322 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4323 | const char *pin) | |
1547aba9 | 4324 | { |
91a5fca4 | 4325 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4326 | |
91a5fca4 | 4327 | if (!w) { |
30a6a1a4 | 4328 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4329 | return -EINVAL; |
1547aba9 MB |
4330 | } |
4331 | ||
91a5fca4 LPC |
4332 | w->ignore_suspend = 1; |
4333 | ||
4334 | return 0; | |
1547aba9 MB |
4335 | } |
4336 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4337 | ||
2b97eabc RP |
4338 | /** |
4339 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4340 | * @dapm: DAPM context |
2b97eabc RP |
4341 | * |
4342 | * Free all dapm widgets and resources. | |
4343 | */ | |
ce6120cc | 4344 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4345 | { |
6c45e126 | 4346 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4347 | dapm_free_widgets(dapm); |
7be31be8 | 4348 | list_del(&dapm->list); |
2b97eabc RP |
4349 | } |
4350 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4351 | ||
57996358 | 4352 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4353 | { |
01005a72 | 4354 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4355 | struct snd_soc_dapm_widget *w; |
4356 | LIST_HEAD(down_list); | |
4357 | int powerdown = 0; | |
4358 | ||
01005a72 LG |
4359 | mutex_lock(&card->dapm_mutex); |
4360 | ||
97c866de JN |
4361 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4362 | if (w->dapm != dapm) | |
4363 | continue; | |
51737470 | 4364 | if (w->power) { |
828a842f | 4365 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4366 | w->power = 0; |
51737470 MB |
4367 | powerdown = 1; |
4368 | } | |
4369 | } | |
4370 | ||
4371 | /* If there were no widgets to power down we're already in | |
4372 | * standby. | |
4373 | */ | |
4374 | if (powerdown) { | |
7679e42e MB |
4375 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4376 | snd_soc_dapm_set_bias_level(dapm, | |
4377 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4378 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4379 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4380 | snd_soc_dapm_set_bias_level(dapm, | |
4381 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4382 | } |
01005a72 LG |
4383 | |
4384 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4385 | } |
4386 | ||
4387 | /* | |
4388 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4389 | */ | |
4390 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4391 | { | |
57996358 | 4392 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4393 | |
57996358 | 4394 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4395 | if (dapm != &card->dapm) { |
4396 | soc_dapm_shutdown_dapm(dapm); | |
4397 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4398 | snd_soc_dapm_set_bias_level(dapm, | |
4399 | SND_SOC_BIAS_OFF); | |
4400 | } | |
ce6120cc | 4401 | } |
17282ba4 XX |
4402 | |
4403 | soc_dapm_shutdown_dapm(&card->dapm); | |
4404 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4405 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4406 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4407 | } |
4408 | ||
2b97eabc | 4409 | /* Module information */ |
d331124d | 4410 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4411 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4412 | MODULE_LICENSE("GPL"); |