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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
a3423b02 LPC |
50 | #define SND_SOC_DAPM_DIR_REVERSE(x) ((x == SND_SOC_DAPM_DIR_IN) ? \ |
51 | SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN) | |
52 | ||
53 | #define snd_soc_dapm_for_each_direction(dir) \ | |
54 | for ((dir) = SND_SOC_DAPM_DIR_IN; (dir) <= SND_SOC_DAPM_DIR_OUT; \ | |
55 | (dir)++) | |
56 | ||
57295073 LPC |
57 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
58 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
59 | const char *control, | |
60 | int (*connected)(struct snd_soc_dapm_widget *source, | |
61 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 62 | |
cc76e7de | 63 | struct snd_soc_dapm_widget * |
57295073 LPC |
64 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
65 | const struct snd_soc_dapm_widget *widget); | |
66 | ||
02aa78ab LG |
67 | struct snd_soc_dapm_widget * |
68 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
69 | const struct snd_soc_dapm_widget *widget); |
70 | ||
2b97eabc RP |
71 | /* dapm power sequences - make this per codec in the future */ |
72 | static int dapm_up_seq[] = { | |
38357ab2 | 73 | [snd_soc_dapm_pre] = 0, |
62ea874a | 74 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 75 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
76 | [snd_soc_dapm_supply] = 2, |
77 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 78 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
79 | [snd_soc_dapm_dai_in] = 4, |
80 | [snd_soc_dapm_dai_out] = 4, | |
81 | [snd_soc_dapm_aif_in] = 4, | |
82 | [snd_soc_dapm_aif_out] = 4, | |
83 | [snd_soc_dapm_mic] = 5, | |
84 | [snd_soc_dapm_mux] = 6, | |
d714f97c | 85 | [snd_soc_dapm_demux] = 6, |
1dd275b6 MB |
86 | [snd_soc_dapm_dac] = 7, |
87 | [snd_soc_dapm_switch] = 8, | |
88 | [snd_soc_dapm_mixer] = 8, | |
89 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
90 | [snd_soc_dapm_pga] = 9, | |
91 | [snd_soc_dapm_adc] = 10, | |
92 | [snd_soc_dapm_out_drv] = 11, | |
93 | [snd_soc_dapm_hp] = 11, | |
94 | [snd_soc_dapm_spk] = 11, | |
95 | [snd_soc_dapm_line] = 11, | |
96 | [snd_soc_dapm_kcontrol] = 12, | |
97 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 98 | }; |
ca9c1aae | 99 | |
2b97eabc | 100 | static int dapm_down_seq[] = { |
38357ab2 | 101 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
102 | [snd_soc_dapm_kcontrol] = 1, |
103 | [snd_soc_dapm_adc] = 2, | |
104 | [snd_soc_dapm_hp] = 3, | |
105 | [snd_soc_dapm_spk] = 3, | |
106 | [snd_soc_dapm_line] = 3, | |
107 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 108 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 109 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 110 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
111 | [snd_soc_dapm_mixer] = 5, |
112 | [snd_soc_dapm_dac] = 6, | |
113 | [snd_soc_dapm_mic] = 7, | |
114 | [snd_soc_dapm_micbias] = 8, | |
115 | [snd_soc_dapm_mux] = 9, | |
d714f97c | 116 | [snd_soc_dapm_demux] = 9, |
010ff262 MB |
117 | [snd_soc_dapm_aif_in] = 10, |
118 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
119 | [snd_soc_dapm_dai_in] = 10, |
120 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 121 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 122 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
123 | [snd_soc_dapm_clock_supply] = 13, |
124 | [snd_soc_dapm_regulator_supply] = 13, | |
125 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
126 | }; |
127 | ||
f9fa2b18 MB |
128 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
129 | { | |
130 | if (dapm->card && dapm->card->instantiated) | |
131 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
132 | } | |
133 | ||
12ef193d | 134 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
135 | { |
136 | if (pop_time) | |
137 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
138 | } | |
139 | ||
fd8d3bc0 | 140 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
141 | { |
142 | va_list args; | |
fd8d3bc0 | 143 | char *buf; |
15e4c72f | 144 | |
fd8d3bc0 JN |
145 | if (!pop_time) |
146 | return; | |
15e4c72f | 147 | |
fd8d3bc0 JN |
148 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
149 | if (buf == NULL) | |
150 | return; | |
15e4c72f | 151 | |
fd8d3bc0 JN |
152 | va_start(args, fmt); |
153 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 154 | dev_info(dev, "%s", buf); |
15e4c72f | 155 | va_end(args); |
fd8d3bc0 JN |
156 | |
157 | kfree(buf); | |
15e4c72f MB |
158 | } |
159 | ||
db432b41 MB |
160 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
161 | { | |
162 | return !list_empty(&w->dirty); | |
163 | } | |
164 | ||
492c0a18 | 165 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 166 | { |
f9fa2b18 MB |
167 | dapm_assert_locked(w->dapm); |
168 | ||
75c1f891 MB |
169 | if (!dapm_dirty_widget(w)) { |
170 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
171 | w->name, reason); | |
db432b41 | 172 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 173 | } |
db432b41 MB |
174 | } |
175 | ||
92a99ea4 | 176 | /* |
a3423b02 LPC |
177 | * Common implementation for dapm_widget_invalidate_input_paths() and |
178 | * dapm_widget_invalidate_output_paths(). The function is inlined since the | |
179 | * combined size of the two specialized functions is only marginally larger then | |
180 | * the size of the generic function and at the same time the fast path of the | |
181 | * specialized functions is significantly smaller than the generic function. | |
92a99ea4 | 182 | */ |
a3423b02 LPC |
183 | static __always_inline void dapm_widget_invalidate_paths( |
184 | struct snd_soc_dapm_widget *w, enum snd_soc_dapm_direction dir) | |
92a99ea4 | 185 | { |
a3423b02 LPC |
186 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
187 | struct snd_soc_dapm_widget *node; | |
92a99ea4 LPC |
188 | struct snd_soc_dapm_path *p; |
189 | LIST_HEAD(list); | |
190 | ||
191 | dapm_assert_locked(w->dapm); | |
192 | ||
a3423b02 | 193 | if (w->endpoints[dir] == -1) |
92a99ea4 LPC |
194 | return; |
195 | ||
92a99ea4 | 196 | list_add_tail(&w->work_list, &list); |
a3423b02 | 197 | w->endpoints[dir] = -1; |
92a99ea4 LPC |
198 | |
199 | list_for_each_entry(w, &list, work_list) { | |
a3423b02 | 200 | snd_soc_dapm_widget_for_each_path(w, dir, p) { |
92a99ea4 LPC |
201 | if (p->is_supply || p->weak || !p->connect) |
202 | continue; | |
a3423b02 LPC |
203 | node = p->node[rdir]; |
204 | if (node->endpoints[dir] != -1) { | |
205 | node->endpoints[dir] = -1; | |
206 | list_add_tail(&node->work_list, &list); | |
92a99ea4 LPC |
207 | } |
208 | } | |
209 | } | |
210 | } | |
211 | ||
a3423b02 LPC |
212 | /* |
213 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of | |
214 | * input paths | |
215 | * @w: The widget for which to invalidate the cached number of input paths | |
216 | * | |
217 | * Resets the cached number of inputs for the specified widget and all widgets | |
218 | * that can be reached via outcoming paths from the widget. | |
219 | * | |
220 | * This function must be called if the number of output paths for a widget might | |
221 | * have changed. E.g. if the source state of a widget changes or a path is added | |
222 | * or activated with the widget as the sink. | |
223 | */ | |
224 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
225 | { | |
226 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_IN); | |
227 | } | |
228 | ||
92a99ea4 LPC |
229 | /* |
230 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
231 | * output paths | |
232 | * @w: The widget for which to invalidate the cached number of output paths | |
233 | * | |
234 | * Resets the cached number of outputs for the specified widget and all widgets | |
235 | * that can be reached via incoming paths from the widget. | |
236 | * | |
237 | * This function must be called if the number of output paths for a widget might | |
238 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
239 | * or activated with the widget as the source. | |
240 | */ | |
241 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
242 | { | |
a3423b02 | 243 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_OUT); |
92a99ea4 LPC |
244 | } |
245 | ||
246 | /* | |
247 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
248 | * for the widgets connected to a path | |
249 | * @p: The path to invalidate | |
250 | * | |
251 | * Resets the cached number of inputs for the sink of the path and the cached | |
252 | * number of outputs for the source of the path. | |
253 | * | |
254 | * This function must be called when a path is added, removed or the connected | |
255 | * state changes. | |
256 | */ | |
257 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
258 | { | |
259 | /* | |
260 | * Weak paths or supply paths do not influence the number of input or | |
261 | * output paths of their neighbors. | |
262 | */ | |
263 | if (p->weak || p->is_supply) | |
264 | return; | |
265 | ||
266 | /* | |
267 | * The number of connected endpoints is the sum of the number of | |
268 | * connected endpoints of all neighbors. If a node with 0 connected | |
269 | * endpoints is either connected or disconnected that sum won't change, | |
270 | * so there is no need to re-check the path. | |
271 | */ | |
a3423b02 | 272 | if (p->source->endpoints[SND_SOC_DAPM_DIR_IN] != 0) |
92a99ea4 | 273 | dapm_widget_invalidate_input_paths(p->sink); |
a3423b02 | 274 | if (p->sink->endpoints[SND_SOC_DAPM_DIR_OUT] != 0) |
92a99ea4 LPC |
275 | dapm_widget_invalidate_output_paths(p->source); |
276 | } | |
277 | ||
8be4da29 | 278 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 279 | { |
e2d32ff6 MB |
280 | struct snd_soc_dapm_widget *w; |
281 | ||
282 | mutex_lock(&card->dapm_mutex); | |
283 | ||
284 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 | 285 | if (w->is_ep) { |
8be4da29 | 286 | dapm_mark_dirty(w, "Rechecking endpoints"); |
a3423b02 | 287 | if (w->is_ep & SND_SOC_DAPM_EP_SINK) |
92a99ea4 | 288 | dapm_widget_invalidate_output_paths(w); |
a3423b02 | 289 | if (w->is_ep & SND_SOC_DAPM_EP_SOURCE) |
92a99ea4 LPC |
290 | dapm_widget_invalidate_input_paths(w); |
291 | } | |
e2d32ff6 MB |
292 | } |
293 | ||
294 | mutex_unlock(&card->dapm_mutex); | |
295 | } | |
8be4da29 | 296 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 297 | |
2b97eabc | 298 | /* create a new dapm widget */ |
88cb4290 | 299 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
300 | const struct snd_soc_dapm_widget *_widget) |
301 | { | |
88cb4290 | 302 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
303 | } |
304 | ||
e84357f7 | 305 | struct dapm_kcontrol_data { |
cf7c1de2 | 306 | unsigned int value; |
57295073 | 307 | struct snd_soc_dapm_widget *widget; |
5106b92f | 308 | struct list_head paths; |
2c75bdf3 | 309 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
310 | }; |
311 | ||
312 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
41d80025 | 313 | struct snd_kcontrol *kcontrol, const char *ctrl_name) |
e84357f7 LPC |
314 | { |
315 | struct dapm_kcontrol_data *data; | |
57295073 | 316 | struct soc_mixer_control *mc; |
561ed680 | 317 | struct soc_enum *e; |
773da9b3 CK |
318 | const char *name; |
319 | int ret; | |
e84357f7 | 320 | |
2c75bdf3 | 321 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 322 | if (!data) |
e84357f7 | 323 | return -ENOMEM; |
e84357f7 | 324 | |
5106b92f | 325 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 326 | |
57295073 LPC |
327 | switch (widget->id) { |
328 | case snd_soc_dapm_switch: | |
329 | case snd_soc_dapm_mixer: | |
330 | case snd_soc_dapm_mixer_named_ctl: | |
331 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
332 | ||
e7aa450f CYT |
333 | if (mc->autodisable && snd_soc_volsw_is_stereo(mc)) |
334 | dev_warn(widget->dapm->dev, | |
335 | "ASoC: Unsupported stereo autodisable control '%s'\n", | |
336 | ctrl_name); | |
337 | ||
57295073 LPC |
338 | if (mc->autodisable) { |
339 | struct snd_soc_dapm_widget template; | |
340 | ||
41d80025 | 341 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
773da9b3 CK |
342 | "Autodisable"); |
343 | if (!name) { | |
344 | ret = -ENOMEM; | |
345 | goto err_data; | |
346 | } | |
347 | ||
57295073 LPC |
348 | memset(&template, 0, sizeof(template)); |
349 | template.reg = mc->reg; | |
350 | template.mask = (1 << fls(mc->max)) - 1; | |
351 | template.shift = mc->shift; | |
352 | if (mc->invert) | |
353 | template.off_val = mc->max; | |
354 | else | |
355 | template.off_val = 0; | |
356 | template.on_val = template.off_val; | |
357 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 358 | template.name = name; |
57295073 | 359 | |
2daabd78 LPC |
360 | data->value = template.on_val; |
361 | ||
02aa78ab LG |
362 | data->widget = |
363 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 364 | &template); |
e18077b6 | 365 | kfree(name); |
37e1df8c LW |
366 | if (IS_ERR(data->widget)) { |
367 | ret = PTR_ERR(data->widget); | |
368 | goto err_data; | |
369 | } | |
57295073 | 370 | if (!data->widget) { |
773da9b3 | 371 | ret = -ENOMEM; |
e18077b6 | 372 | goto err_data; |
57295073 LPC |
373 | } |
374 | } | |
375 | break; | |
d714f97c | 376 | case snd_soc_dapm_demux: |
561ed680 CK |
377 | case snd_soc_dapm_mux: |
378 | e = (struct soc_enum *)kcontrol->private_value; | |
379 | ||
380 | if (e->autodisable) { | |
381 | struct snd_soc_dapm_widget template; | |
382 | ||
41d80025 | 383 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
561ed680 CK |
384 | "Autodisable"); |
385 | if (!name) { | |
386 | ret = -ENOMEM; | |
387 | goto err_data; | |
388 | } | |
389 | ||
390 | memset(&template, 0, sizeof(template)); | |
391 | template.reg = e->reg; | |
392 | template.mask = e->mask << e->shift_l; | |
393 | template.shift = e->shift_l; | |
394 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
395 | template.on_val = template.off_val; | |
396 | template.id = snd_soc_dapm_kcontrol; | |
397 | template.name = name; | |
398 | ||
399 | data->value = template.on_val; | |
400 | ||
ffacb48e CK |
401 | data->widget = snd_soc_dapm_new_control_unlocked( |
402 | widget->dapm, &template); | |
e18077b6 | 403 | kfree(name); |
37e1df8c LW |
404 | if (IS_ERR(data->widget)) { |
405 | ret = PTR_ERR(data->widget); | |
406 | goto err_data; | |
407 | } | |
561ed680 CK |
408 | if (!data->widget) { |
409 | ret = -ENOMEM; | |
e18077b6 | 410 | goto err_data; |
561ed680 CK |
411 | } |
412 | ||
413 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
414 | widget, NULL, NULL); | |
415 | } | |
416 | break; | |
57295073 LPC |
417 | default: |
418 | break; | |
419 | } | |
420 | ||
e84357f7 LPC |
421 | kcontrol->private_data = data; |
422 | ||
423 | return 0; | |
773da9b3 | 424 | |
773da9b3 CK |
425 | err_data: |
426 | kfree(data); | |
427 | return ret; | |
e84357f7 LPC |
428 | } |
429 | ||
430 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
431 | { | |
432 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 433 | kfree(data->wlist); |
e84357f7 LPC |
434 | kfree(data); |
435 | } | |
436 | ||
437 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
438 | const struct snd_kcontrol *kcontrol) | |
439 | { | |
440 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
441 | ||
2c75bdf3 | 442 | return data->wlist; |
e84357f7 LPC |
443 | } |
444 | ||
445 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
446 | struct snd_soc_dapm_widget *widget) | |
447 | { | |
448 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
449 | struct snd_soc_dapm_widget_list *new_wlist; |
450 | unsigned int n; | |
e84357f7 | 451 | |
2c75bdf3 LPC |
452 | if (data->wlist) |
453 | n = data->wlist->num_widgets + 1; | |
454 | else | |
455 | n = 1; | |
456 | ||
457 | new_wlist = krealloc(data->wlist, | |
458 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
459 | if (!new_wlist) | |
e84357f7 LPC |
460 | return -ENOMEM; |
461 | ||
2c75bdf3 LPC |
462 | new_wlist->widgets[n - 1] = widget; |
463 | new_wlist->num_widgets = n; | |
e84357f7 | 464 | |
2c75bdf3 | 465 | data->wlist = new_wlist; |
e84357f7 LPC |
466 | |
467 | return 0; | |
468 | } | |
469 | ||
5106b92f LPC |
470 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
471 | struct snd_soc_dapm_path *path) | |
472 | { | |
473 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
474 | ||
475 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
476 | } |
477 | ||
478 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
479 | { | |
480 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
481 | ||
482 | if (!data->widget) | |
483 | return true; | |
484 | ||
485 | return data->widget->power; | |
5106b92f LPC |
486 | } |
487 | ||
488 | static struct list_head *dapm_kcontrol_get_path_list( | |
489 | const struct snd_kcontrol *kcontrol) | |
490 | { | |
491 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
492 | ||
493 | return &data->paths; | |
494 | } | |
495 | ||
496 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
497 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
498 | list_kcontrol) | |
499 | ||
5dc0158a | 500 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
501 | { |
502 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
503 | ||
504 | return data->value; | |
505 | } | |
5dc0158a | 506 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
507 | |
508 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
509 | unsigned int value) | |
510 | { | |
511 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
512 | ||
513 | if (data->value == value) | |
514 | return false; | |
515 | ||
57295073 LPC |
516 | if (data->widget) |
517 | data->widget->on_val = value; | |
518 | ||
cf7c1de2 LPC |
519 | data->value = value; |
520 | ||
521 | return true; | |
522 | } | |
523 | ||
93e39a11 M |
524 | /** |
525 | * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a | |
526 | * kcontrol | |
527 | * @kcontrol: The kcontrol | |
528 | */ | |
529 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( | |
530 | struct snd_kcontrol *kcontrol) | |
531 | { | |
532 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; | |
533 | } | |
534 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); | |
535 | ||
ce0fc93a LPC |
536 | /** |
537 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
538 | * kcontrol | |
539 | * @kcontrol: The kcontrol | |
540 | * | |
541 | * Note: This function must only be used on kcontrols that are known to have | |
542 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
543 | */ | |
544 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
545 | struct snd_kcontrol *kcontrol) | |
546 | { | |
547 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
548 | } | |
549 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
550 | ||
6c120e19 LG |
551 | static void dapm_reset(struct snd_soc_card *card) |
552 | { | |
553 | struct snd_soc_dapm_widget *w; | |
554 | ||
f9fa2b18 MB |
555 | lockdep_assert_held(&card->dapm_mutex); |
556 | ||
6c120e19 LG |
557 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
558 | ||
559 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 560 | w->new_power = w->power; |
6c120e19 | 561 | w->power_checked = false; |
6c120e19 LG |
562 | } |
563 | } | |
564 | ||
94f99c87 LPC |
565 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
566 | { | |
567 | if (!dapm->component) | |
568 | return NULL; | |
569 | return dapm->component->name_prefix; | |
570 | } | |
571 | ||
ce0fc93a | 572 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 573 | unsigned int *value) |
0445bdf4 | 574 | { |
ce0fc93a | 575 | if (!dapm->component) |
e2c330b9 | 576 | return -EIO; |
ce0fc93a | 577 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
578 | } |
579 | ||
ce0fc93a | 580 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 581 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 582 | { |
ce0fc93a | 583 | if (!dapm->component) |
e2c330b9 | 584 | return -EIO; |
fcf6c5ea MB |
585 | return snd_soc_component_update_bits(dapm->component, reg, |
586 | mask, value); | |
49575fb5 LG |
587 | } |
588 | ||
ce0fc93a LPC |
589 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
590 | int reg, unsigned int mask, unsigned int value) | |
591 | { | |
592 | if (!dapm->component) | |
593 | return -EIO; | |
594 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
595 | } | |
596 | ||
eb270e98 MB |
597 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
598 | { | |
e2c330b9 LPC |
599 | if (dapm->component) |
600 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
601 | } |
602 | ||
45a110a1 CK |
603 | static struct snd_soc_dapm_widget * |
604 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
605 | { | |
606 | struct snd_soc_dapm_widget *w = wcache->widget; | |
607 | struct list_head *wlist; | |
608 | const int depth = 2; | |
609 | int i = 0; | |
610 | ||
611 | if (w) { | |
612 | wlist = &w->dapm->card->widgets; | |
613 | ||
614 | list_for_each_entry_from(w, wlist, list) { | |
615 | if (!strcmp(name, w->name)) | |
616 | return w; | |
617 | ||
618 | if (++i == depth) | |
619 | break; | |
620 | } | |
621 | } | |
622 | ||
623 | return NULL; | |
624 | } | |
625 | ||
626 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
627 | struct snd_soc_dapm_widget *w) | |
628 | { | |
629 | wcache->widget = w; | |
630 | } | |
631 | ||
fa880775 LPC |
632 | /** |
633 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
634 | * @dapm: The DAPM context for which to set the level | |
635 | * @level: The level to set | |
636 | * | |
637 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
638 | * callback of DAPM context with the specified level. This will even happen if | |
639 | * the context is already at the same level. Furthermore it will not go through | |
640 | * the normal bias level sequencing, meaning any intermediate states between the | |
641 | * current and the target state will not be entered. | |
642 | * | |
643 | * Note that the change in bias level is only temporary and the next time | |
644 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
645 | * determined by the DAPM core. The function is mainly intended to be used to | |
646 | * used during probe or resume from suspend to power up the device so | |
647 | * initialization can be done, before the DAPM core takes over. | |
648 | */ | |
649 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
650 | enum snd_soc_bias_level level) | |
651 | { | |
652 | int ret = 0; | |
653 | ||
654 | if (dapm->set_bias_level) | |
655 | ret = dapm->set_bias_level(dapm, level); | |
656 | ||
f4bf8d77 LPC |
657 | if (ret == 0) |
658 | dapm->bias_level = level; | |
659 | ||
fa880775 LPC |
660 | return ret; |
661 | } | |
662 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
663 | ||
452c5eaa MB |
664 | /** |
665 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 666 | * @dapm: DAPM context |
452c5eaa MB |
667 | * @level: level to configure |
668 | * | |
669 | * Configure the bias (power) levels for the SoC audio device. | |
670 | * | |
671 | * Returns 0 for success else error. | |
672 | */ | |
ed5a4c47 | 673 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 674 | enum snd_soc_bias_level level) |
452c5eaa | 675 | { |
ed5a4c47 | 676 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
677 | int ret = 0; |
678 | ||
84e90930 MB |
679 | trace_snd_soc_bias_level_start(card, level); |
680 | ||
f0fba2ad | 681 | if (card && card->set_bias_level) |
d4c6005f | 682 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
683 | if (ret != 0) |
684 | goto out; | |
685 | ||
fa880775 LPC |
686 | if (!card || dapm != &card->dapm) |
687 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 688 | |
171ec6b0 MB |
689 | if (ret != 0) |
690 | goto out; | |
691 | ||
692 | if (card && card->set_bias_level_post) | |
d4c6005f | 693 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 694 | out: |
84e90930 MB |
695 | trace_snd_soc_bias_level_done(card, level); |
696 | ||
452c5eaa MB |
697 | return ret; |
698 | } | |
699 | ||
74b8f955 | 700 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 701 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
702 | struct snd_soc_dapm_path *path, const char *control_name, |
703 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 704 | { |
d714f97c | 705 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 706 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 707 | unsigned int val, item; |
2b97eabc | 708 | int i; |
24ff33ac | 709 | |
234c0b8f | 710 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 711 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
712 | val = (val >> e->shift_l) & e->mask; |
713 | item = snd_soc_enum_val_to_item(e, val); | |
714 | } else { | |
24ff33ac DP |
715 | /* since a virtual mux has no backing registers to |
716 | * decide which path to connect, it will try to match | |
717 | * with the first enumeration. This is to ensure | |
718 | * that the default mux choice (the first) will be | |
719 | * correctly powered up during initialization. | |
720 | */ | |
234c0b8f | 721 | item = 0; |
24ff33ac | 722 | } |
2e72f8e3 | 723 | |
9a8d38db | 724 | for (i = 0; i < e->items; i++) { |
2b97eabc | 725 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 726 | path->name = e->texts[i]; |
234c0b8f LPC |
727 | if (i == item) |
728 | path->connect = 1; | |
729 | else | |
730 | path->connect = 0; | |
2b97eabc RP |
731 | return 0; |
732 | } | |
733 | } | |
734 | ||
735 | return -ENODEV; | |
736 | } | |
737 | ||
234c0b8f | 738 | /* set up initial codec paths */ |
e7aa450f CYT |
739 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i, |
740 | int nth_path) | |
234c0b8f LPC |
741 | { |
742 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 743 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
744 | unsigned int reg = mc->reg; |
745 | unsigned int shift = mc->shift; | |
746 | unsigned int max = mc->max; | |
747 | unsigned int mask = (1 << fls(max)) - 1; | |
748 | unsigned int invert = mc->invert; | |
749 | unsigned int val; | |
750 | ||
751 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 752 | soc_dapm_read(p->sink->dapm, reg, &val); |
e7aa450f CYT |
753 | /* |
754 | * The nth_path argument allows this function to know | |
755 | * which path of a kcontrol it is setting the initial | |
756 | * status for. Ideally this would support any number | |
757 | * of paths and channels. But since kcontrols only come | |
758 | * in mono and stereo variants, we are limited to 2 | |
759 | * channels. | |
760 | * | |
761 | * The following code assumes for stereo controls the | |
762 | * first path is the left channel, and all remaining | |
763 | * paths are the right channel. | |
764 | */ | |
765 | if (snd_soc_volsw_is_stereo(mc) && nth_path > 0) { | |
766 | if (reg != mc->rreg) | |
767 | soc_dapm_read(p->sink->dapm, mc->rreg, &val); | |
768 | val = (val >> mc->rshift) & mask; | |
769 | } else { | |
770 | val = (val >> shift) & mask; | |
771 | } | |
234c0b8f LPC |
772 | if (invert) |
773 | val = max - val; | |
774 | p->connect = !!val; | |
775 | } else { | |
776 | p->connect = 0; | |
777 | } | |
778 | } | |
779 | ||
74b8f955 | 780 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 781 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
782 | struct snd_soc_dapm_path *path, const char *control_name) |
783 | { | |
e7aa450f | 784 | int i, nth_path = 0; |
2b97eabc RP |
785 | |
786 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
787 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
788 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
789 | path->name = path->sink->kcontrol_news[i].name; | |
e7aa450f | 790 | dapm_set_mixer_path_status(path, i, nth_path++); |
2b97eabc RP |
791 | return 0; |
792 | } | |
793 | } | |
794 | return -ENODEV; | |
795 | } | |
796 | ||
af46800b | 797 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 798 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
799 | const struct snd_kcontrol_new *kcontrol_new, |
800 | struct snd_kcontrol **kcontrol) | |
801 | { | |
802 | struct snd_soc_dapm_widget *w; | |
803 | int i; | |
804 | ||
805 | *kcontrol = NULL; | |
806 | ||
807 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
808 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
809 | continue; | |
af46800b SW |
810 | for (i = 0; i < w->num_kcontrols; i++) { |
811 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
812 | if (w->kcontrols) | |
813 | *kcontrol = w->kcontrols[i]; | |
814 | return 1; | |
815 | } | |
816 | } | |
817 | } | |
818 | ||
819 | return 0; | |
820 | } | |
821 | ||
85762e71 SW |
822 | /* |
823 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
824 | * create it. Either way, add the widget into the control's widget list | |
825 | */ | |
19a2557b | 826 | static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, |
946d92a1 | 827 | int kci) |
2b97eabc | 828 | { |
4b80b8c2 | 829 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 830 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 831 | const char *prefix; |
85762e71 SW |
832 | size_t prefix_len; |
833 | int shared; | |
834 | struct snd_kcontrol *kcontrol; | |
85762e71 | 835 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 836 | char *long_name = NULL; |
85762e71 | 837 | const char *name; |
e5092c96 | 838 | int ret = 0; |
efb7ac3f | 839 | |
94f99c87 | 840 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
841 | if (prefix) |
842 | prefix_len = strlen(prefix) + 1; | |
843 | else | |
844 | prefix_len = 0; | |
845 | ||
85762e71 SW |
846 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
847 | &kcontrol); | |
2b97eabc | 848 | |
85762e71 SW |
849 | if (!kcontrol) { |
850 | if (shared) { | |
851 | wname_in_long_name = false; | |
852 | kcname_in_long_name = true; | |
853 | } else { | |
854 | switch (w->id) { | |
855 | case snd_soc_dapm_switch: | |
856 | case snd_soc_dapm_mixer: | |
19a2557b | 857 | case snd_soc_dapm_pga: |
a3930ed0 | 858 | case snd_soc_dapm_out_drv: |
85762e71 SW |
859 | wname_in_long_name = true; |
860 | kcname_in_long_name = true; | |
861 | break; | |
862 | case snd_soc_dapm_mixer_named_ctl: | |
863 | wname_in_long_name = false; | |
864 | kcname_in_long_name = true; | |
865 | break; | |
d714f97c | 866 | case snd_soc_dapm_demux: |
85762e71 | 867 | case snd_soc_dapm_mux: |
85762e71 SW |
868 | wname_in_long_name = true; |
869 | kcname_in_long_name = false; | |
870 | break; | |
871 | default: | |
85762e71 | 872 | return -EINVAL; |
82cd8764 | 873 | } |
85762e71 SW |
874 | } |
875 | ||
876 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
877 | /* |
878 | * The control will get a prefix from the control | |
879 | * creation process but we're also using the same | |
880 | * prefix for widgets so cut the prefix off the | |
881 | * front of the widget name. | |
ca9c1aae | 882 | */ |
2b581074 | 883 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
884 | w->name + prefix_len, |
885 | w->kcontrol_news[kci].name); | |
e84357f7 | 886 | if (long_name == NULL) |
2b581074 | 887 | return -ENOMEM; |
85762e71 SW |
888 | |
889 | name = long_name; | |
890 | } else if (wname_in_long_name) { | |
891 | long_name = NULL; | |
892 | name = w->name + prefix_len; | |
893 | } else { | |
894 | long_name = NULL; | |
895 | name = w->kcontrol_news[kci].name; | |
896 | } | |
ca9c1aae | 897 | |
e84357f7 | 898 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 899 | prefix); |
e5092c96 DM |
900 | if (!kcontrol) { |
901 | ret = -ENOMEM; | |
902 | goto exit_free; | |
903 | } | |
904 | ||
9356e9d5 | 905 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 | 906 | |
41d80025 | 907 | ret = dapm_kcontrol_data_alloc(w, kcontrol, name); |
e84357f7 LPC |
908 | if (ret) { |
909 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 910 | goto exit_free; |
e84357f7 LPC |
911 | } |
912 | ||
85762e71 SW |
913 | ret = snd_ctl_add(card, kcontrol); |
914 | if (ret < 0) { | |
915 | dev_err(dapm->dev, | |
916 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
917 | w->name, name, ret); | |
e5092c96 | 918 | goto exit_free; |
85762e71 | 919 | } |
85762e71 | 920 | } |
2b97eabc | 921 | |
2c75bdf3 | 922 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
923 | if (ret == 0) |
924 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 925 | |
e5092c96 DM |
926 | exit_free: |
927 | kfree(long_name); | |
ca9c1aae | 928 | |
e5092c96 | 929 | return ret; |
85762e71 | 930 | } |
219b93f5 | 931 | |
85762e71 SW |
932 | /* create new dapm mixer control */ |
933 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
934 | { | |
935 | int i, ret; | |
936 | struct snd_soc_dapm_path *path; | |
561ed680 | 937 | struct dapm_kcontrol_data *data; |
85762e71 SW |
938 | |
939 | /* add kcontrol */ | |
940 | for (i = 0; i < w->num_kcontrols; i++) { | |
941 | /* match name */ | |
e63bfd45 | 942 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
943 | /* mixer/mux paths name must match control name */ |
944 | if (path->name != (char *)w->kcontrol_news[i].name) | |
945 | continue; | |
946 | ||
561ed680 | 947 | if (!w->kcontrols[i]) { |
19a2557b | 948 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
949 | if (ret < 0) |
950 | return ret; | |
2b97eabc | 951 | } |
85762e71 | 952 | |
946d92a1 | 953 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
954 | |
955 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
956 | if (data->widget) | |
957 | snd_soc_dapm_add_path(data->widget->dapm, | |
958 | data->widget, | |
959 | path->source, | |
960 | NULL, NULL); | |
2b97eabc RP |
961 | } |
962 | } | |
85762e71 SW |
963 | |
964 | return 0; | |
2b97eabc RP |
965 | } |
966 | ||
967 | /* create new dapm mux control */ | |
4b80b8c2 | 968 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 969 | { |
4b80b8c2 | 970 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 971 | enum snd_soc_dapm_direction dir; |
85762e71 | 972 | struct snd_soc_dapm_path *path; |
d714f97c | 973 | const char *type; |
af46800b | 974 | int ret; |
2b97eabc | 975 | |
d714f97c LPC |
976 | switch (w->id) { |
977 | case snd_soc_dapm_mux: | |
a3423b02 | 978 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
979 | type = "mux"; |
980 | break; | |
981 | case snd_soc_dapm_demux: | |
a3423b02 | 982 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
983 | type = "demux"; |
984 | break; | |
985 | default: | |
986 | return -EINVAL; | |
987 | } | |
988 | ||
af46800b SW |
989 | if (w->num_kcontrols != 1) { |
990 | dev_err(dapm->dev, | |
d714f97c | 991 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 992 | w->name); |
2b97eabc RP |
993 | return -EINVAL; |
994 | } | |
995 | ||
a3423b02 | 996 | if (list_empty(&w->edges[dir])) { |
d714f97c | 997 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 998 | return -EINVAL; |
af46800b | 999 | } |
ce6120cc | 1000 | |
19a2557b | 1001 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
1002 | if (ret < 0) |
1003 | return ret; | |
fad59888 | 1004 | |
a3423b02 LPC |
1005 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
1006 | if (path->name) | |
1007 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 1008 | } |
2b97eabc | 1009 | |
af46800b | 1010 | return 0; |
2b97eabc RP |
1011 | } |
1012 | ||
1013 | /* create new dapm volume control */ | |
4b80b8c2 | 1014 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 1015 | { |
19a2557b JK |
1016 | int i, ret; |
1017 | ||
1018 | for (i = 0; i < w->num_kcontrols; i++) { | |
1019 | ret = dapm_create_or_share_kcontrol(w, i); | |
1020 | if (ret < 0) | |
1021 | return ret; | |
1022 | } | |
2b97eabc | 1023 | |
a6c65736 | 1024 | return 0; |
2b97eabc RP |
1025 | } |
1026 | ||
c6615082 NO |
1027 | /* create new dapm dai link control */ |
1028 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
1029 | { | |
1030 | int i, ret; | |
1031 | struct snd_kcontrol *kcontrol; | |
1032 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1033 | struct snd_card *card = dapm->card->snd_card; | |
1034 | ||
1035 | /* create control for links with > 1 config */ | |
1036 | if (w->num_params <= 1) | |
1037 | return 0; | |
1038 | ||
1039 | /* add kcontrol */ | |
1040 | for (i = 0; i < w->num_kcontrols; i++) { | |
1041 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1042 | w->name, NULL); | |
1043 | ret = snd_ctl_add(card, kcontrol); | |
1044 | if (ret < 0) { | |
1045 | dev_err(dapm->dev, | |
1046 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1047 | w->name, w->kcontrol_news[i].name, ret); | |
1048 | return ret; | |
1049 | } | |
1050 | kcontrol->private_data = w; | |
1051 | w->kcontrols[i] = kcontrol; | |
1052 | } | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | ||
9949788b MB |
1057 | /* We implement power down on suspend by checking the power state of |
1058 | * the ALSA card - when we are suspending the ALSA state for the card | |
1059 | * is set to D3. | |
1060 | */ | |
1061 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1062 | { | |
12ea2c78 | 1063 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1064 | |
f0fba2ad | 1065 | switch (level) { |
9949788b MB |
1066 | case SNDRV_CTL_POWER_D3hot: |
1067 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1068 | if (widget->ignore_suspend) |
30a6a1a4 | 1069 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1070 | widget->name); |
1547aba9 | 1071 | return widget->ignore_suspend; |
9949788b MB |
1072 | default: |
1073 | return 1; | |
1074 | } | |
1075 | } | |
1076 | ||
1ce43acf LPC |
1077 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1078 | struct list_head *widgets) | |
ec2e3031 | 1079 | { |
1ce43acf LPC |
1080 | struct snd_soc_dapm_widget *w; |
1081 | struct list_head *it; | |
1082 | unsigned int size = 0; | |
1083 | unsigned int i = 0; | |
ec2e3031 | 1084 | |
1ce43acf LPC |
1085 | list_for_each(it, widgets) |
1086 | size++; | |
ec2e3031 | 1087 | |
1ce43acf LPC |
1088 | *list = kzalloc(sizeof(**list) + size * sizeof(*w), GFP_KERNEL); |
1089 | if (*list == NULL) | |
ec2e3031 | 1090 | return -ENOMEM; |
ec2e3031 | 1091 | |
1ce43acf LPC |
1092 | list_for_each_entry(w, widgets, work_list) |
1093 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1094 | |
1ce43acf LPC |
1095 | (*list)->num_widgets = i; |
1096 | ||
1097 | return 0; | |
ec2e3031 LG |
1098 | } |
1099 | ||
2b97eabc | 1100 | /* |
a3423b02 LPC |
1101 | * Common implementation for is_connected_output_ep() and |
1102 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1103 | * the two specialized functions is only marginally larger then the size of the | |
1104 | * generic function and at the same time the fast path of the specialized | |
1105 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1106 | */ |
a3423b02 LPC |
1107 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1108 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
6742064a PS |
1109 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *, |
1110 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1111 | enum snd_soc_dapm_direction)), | |
1112 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1113 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1114 | { |
a3423b02 | 1115 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1116 | struct snd_soc_dapm_path *path; |
1117 | int con = 0; | |
1118 | ||
a3423b02 LPC |
1119 | if (widget->endpoints[dir] >= 0) |
1120 | return widget->endpoints[dir]; | |
024dc078 | 1121 | |
de02d078 MB |
1122 | DAPM_UPDATE_STAT(widget, path_checks); |
1123 | ||
1ce43acf LPC |
1124 | /* do we need to add this widget to the list ? */ |
1125 | if (list) | |
1126 | list_add_tail(&widget->work_list, list); | |
1127 | ||
09464974 JK |
1128 | if (custom_stop_condition && custom_stop_condition(widget, dir)) { |
1129 | widget->endpoints[dir] = 1; | |
1130 | return widget->endpoints[dir]; | |
1131 | } | |
6742064a | 1132 | |
a3423b02 LPC |
1133 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1134 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1135 | return widget->endpoints[dir]; | |
2b97eabc RP |
1136 | } |
1137 | ||
a3423b02 | 1138 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1139 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1140 | ||
c1862c8b | 1141 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1142 | continue; |
1143 | ||
8af294b4 MB |
1144 | if (path->walking) |
1145 | return 1; | |
1146 | ||
a3423b02 | 1147 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1148 | |
7ddd4cd5 | 1149 | if (path->connect) { |
8af294b4 | 1150 | path->walking = 1; |
6742064a | 1151 | con += fn(path->node[dir], list, custom_stop_condition); |
8af294b4 | 1152 | path->walking = 0; |
2b97eabc RP |
1153 | } |
1154 | } | |
1155 | ||
a3423b02 | 1156 | widget->endpoints[dir] = con; |
024dc078 | 1157 | |
2b97eabc RP |
1158 | return con; |
1159 | } | |
1160 | ||
a3423b02 LPC |
1161 | /* |
1162 | * Recursively check for a completed path to an active or physically connected | |
1163 | * output widget. Returns number of complete paths. | |
6742064a PS |
1164 | * |
1165 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1166 | * This function takes the dapm widget currently being examined and the walk | |
1167 | * direction as an arguments, it should return true if the walk should be | |
1168 | * stopped and false otherwise. | |
a3423b02 LPC |
1169 | */ |
1170 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
6742064a PS |
1171 | struct list_head *list, |
1172 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1173 | enum snd_soc_dapm_direction)) | |
a3423b02 LPC |
1174 | { |
1175 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
6742064a | 1176 | is_connected_output_ep, custom_stop_condition); |
a3423b02 LPC |
1177 | } |
1178 | ||
2b97eabc RP |
1179 | /* |
1180 | * Recursively check for a completed path to an active or physically connected | |
1181 | * input widget. Returns number of complete paths. | |
6742064a PS |
1182 | * |
1183 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1184 | * This function takes the dapm widget currently being examined and the walk | |
1185 | * direction as an arguments, it should return true if the walk should be | |
1186 | * stopped and false otherwise. | |
2b97eabc | 1187 | */ |
ec2e3031 | 1188 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
6742064a PS |
1189 | struct list_head *list, |
1190 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1191 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1192 | { |
a3423b02 | 1193 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
6742064a | 1194 | is_connected_input_ep, custom_stop_condition); |
2b97eabc RP |
1195 | } |
1196 | ||
ec2e3031 LG |
1197 | /** |
1198 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1199 | * @dai: the soc DAI. | |
1200 | * @stream: stream direction. | |
1201 | * @list: list of active widgets for this stream. | |
6742064a PS |
1202 | * @custom_stop_condition: (optional) a function meant to stop the widget graph |
1203 | * walk based on custom logic. | |
ec2e3031 | 1204 | * |
c8046000 | 1205 | * Queries DAPM graph as to whether a valid audio stream path exists for |
ec2e3031 LG |
1206 | * the initial stream specified by name. This takes into account |
1207 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1208 | * | |
6742064a PS |
1209 | * Optionally, can be supplied with a function acting as a stopping condition. |
1210 | * This function takes the dapm widget currently being examined and the walk | |
1211 | * direction as an arguments, it should return true if the walk should be | |
1212 | * stopped and false otherwise. | |
1213 | * | |
ec2e3031 LG |
1214 | * Returns the number of valid paths or negative error. |
1215 | */ | |
1216 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
6742064a PS |
1217 | struct snd_soc_dapm_widget_list **list, |
1218 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1219 | enum snd_soc_dapm_direction)) | |
ec2e3031 | 1220 | { |
313665b9 | 1221 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1222 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1223 | LIST_HEAD(widgets); |
ec2e3031 | 1224 | int paths; |
1ce43acf | 1225 | int ret; |
ec2e3031 LG |
1226 | |
1227 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1228 | |
1229 | /* | |
1230 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1231 | * to reset the cached number of inputs and outputs. | |
1232 | */ | |
1233 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 LPC |
1234 | w->endpoints[SND_SOC_DAPM_DIR_IN] = -1; |
1235 | w->endpoints[SND_SOC_DAPM_DIR_OUT] = -1; | |
92a99ea4 | 1236 | } |
ec2e3031 | 1237 | |
130897ac | 1238 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
6742064a PS |
1239 | paths = is_connected_output_ep(dai->playback_widget, &widgets, |
1240 | custom_stop_condition); | |
130897ac | 1241 | else |
6742064a PS |
1242 | paths = is_connected_input_ep(dai->capture_widget, &widgets, |
1243 | custom_stop_condition); | |
1ce43acf LPC |
1244 | |
1245 | /* Drop starting point */ | |
1246 | list_del(widgets.next); | |
1247 | ||
1248 | ret = dapm_widget_list_create(list, &widgets); | |
1249 | if (ret) | |
30abbe77 | 1250 | paths = ret; |
ec2e3031 LG |
1251 | |
1252 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1253 | mutex_unlock(&card->dapm_mutex); |
1254 | ||
1255 | return paths; | |
1256 | } | |
1257 | ||
62ea874a MB |
1258 | /* |
1259 | * Handler for regulator supply widget. | |
1260 | */ | |
1261 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1262 | struct snd_kcontrol *kcontrol, int event) | |
1263 | { | |
c05b84d1 MB |
1264 | int ret; |
1265 | ||
eb270e98 MB |
1266 | soc_dapm_async_complete(w->dapm); |
1267 | ||
c05b84d1 | 1268 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1269 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1270 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1271 | if (ret != 0) |
1272 | dev_warn(w->dapm->dev, | |
30686c35 | 1273 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1274 | w->name, ret); |
1275 | } | |
1276 | ||
a3cc056b | 1277 | return regulator_enable(w->regulator); |
c05b84d1 | 1278 | } else { |
de9ba98b | 1279 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1280 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1281 | if (ret != 0) |
1282 | dev_warn(w->dapm->dev, | |
30686c35 | 1283 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1284 | w->name, ret); |
1285 | } | |
1286 | ||
a3cc056b | 1287 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1288 | } |
62ea874a MB |
1289 | } |
1290 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1291 | ||
d7e7eb91 OL |
1292 | /* |
1293 | * Handler for clock supply widget. | |
1294 | */ | |
1295 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1296 | struct snd_kcontrol *kcontrol, int event) | |
1297 | { | |
1298 | if (!w->clk) | |
1299 | return -EIO; | |
1300 | ||
eb270e98 MB |
1301 | soc_dapm_async_complete(w->dapm); |
1302 | ||
ec02995a | 1303 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1304 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1305 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1306 | } else { |
37c1b927 | 1307 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1308 | return 0; |
1309 | } | |
ec02995a | 1310 | #endif |
98b3cf12 | 1311 | return 0; |
d7e7eb91 OL |
1312 | } |
1313 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1314 | ||
d805002b MB |
1315 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1316 | { | |
9b8a83b2 MB |
1317 | if (w->power_checked) |
1318 | return w->new_power; | |
1319 | ||
d805002b | 1320 | if (w->force) |
9b8a83b2 | 1321 | w->new_power = 1; |
d805002b | 1322 | else |
9b8a83b2 MB |
1323 | w->new_power = w->power_check(w); |
1324 | ||
1325 | w->power_checked = true; | |
1326 | ||
1327 | return w->new_power; | |
d805002b MB |
1328 | } |
1329 | ||
c8046000 | 1330 | /* Generic check to see if a widget should be powered. */ |
cd0f2d47 MB |
1331 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
1332 | { | |
1333 | int in, out; | |
1334 | ||
de02d078 MB |
1335 | DAPM_UPDATE_STAT(w, power_checks); |
1336 | ||
6742064a PS |
1337 | in = is_connected_input_ep(w, NULL, NULL); |
1338 | out = is_connected_output_ep(w, NULL, NULL); | |
cd0f2d47 MB |
1339 | return out != 0 && in != 0; |
1340 | } | |
1341 | ||
246d0a17 MB |
1342 | /* Check to see if a power supply is needed */ |
1343 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1344 | { | |
1345 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1346 | |
de02d078 MB |
1347 | DAPM_UPDATE_STAT(w, power_checks); |
1348 | ||
246d0a17 | 1349 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1350 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1351 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1352 | ||
bf3a9e13 MB |
1353 | if (path->weak) |
1354 | continue; | |
1355 | ||
215edda3 MB |
1356 | if (path->connected && |
1357 | !path->connected(path->source, path->sink)) | |
1358 | continue; | |
1359 | ||
f68d7e16 MB |
1360 | if (dapm_widget_power_check(path->sink)) |
1361 | return 1; | |
246d0a17 MB |
1362 | } |
1363 | ||
f68d7e16 | 1364 | return 0; |
246d0a17 MB |
1365 | } |
1366 | ||
35c64bca MB |
1367 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1368 | { | |
20bb0184 | 1369 | return w->connected; |
35c64bca MB |
1370 | } |
1371 | ||
38357ab2 MB |
1372 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1373 | struct snd_soc_dapm_widget *b, | |
828a842f | 1374 | bool power_up) |
42aa3418 | 1375 | { |
828a842f MB |
1376 | int *sort; |
1377 | ||
1378 | if (power_up) | |
1379 | sort = dapm_up_seq; | |
1380 | else | |
1381 | sort = dapm_down_seq; | |
1382 | ||
38357ab2 MB |
1383 | if (sort[a->id] != sort[b->id]) |
1384 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1385 | if (a->subseq != b->subseq) { |
1386 | if (power_up) | |
1387 | return a->subseq - b->subseq; | |
1388 | else | |
1389 | return b->subseq - a->subseq; | |
1390 | } | |
b22ead2a MB |
1391 | if (a->reg != b->reg) |
1392 | return a->reg - b->reg; | |
84dab567 MB |
1393 | if (a->dapm != b->dapm) |
1394 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1395 | |
38357ab2 MB |
1396 | return 0; |
1397 | } | |
42aa3418 | 1398 | |
38357ab2 MB |
1399 | /* Insert a widget in order into a DAPM power sequence. */ |
1400 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1401 | struct list_head *list, | |
828a842f | 1402 | bool power_up) |
38357ab2 MB |
1403 | { |
1404 | struct snd_soc_dapm_widget *w; | |
1405 | ||
1406 | list_for_each_entry(w, list, power_list) | |
828a842f | 1407 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1408 | list_add_tail(&new_widget->power_list, &w->power_list); |
1409 | return; | |
1410 | } | |
1411 | ||
1412 | list_add_tail(&new_widget->power_list, list); | |
1413 | } | |
1414 | ||
95dd5cd6 | 1415 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1416 | struct snd_soc_dapm_widget *w, int event) |
1417 | { | |
68f89ad8 MB |
1418 | const char *ev_name; |
1419 | int power, ret; | |
1420 | ||
1421 | switch (event) { | |
1422 | case SND_SOC_DAPM_PRE_PMU: | |
1423 | ev_name = "PRE_PMU"; | |
1424 | power = 1; | |
1425 | break; | |
1426 | case SND_SOC_DAPM_POST_PMU: | |
1427 | ev_name = "POST_PMU"; | |
1428 | power = 1; | |
1429 | break; | |
1430 | case SND_SOC_DAPM_PRE_PMD: | |
1431 | ev_name = "PRE_PMD"; | |
1432 | power = 0; | |
1433 | break; | |
1434 | case SND_SOC_DAPM_POST_PMD: | |
1435 | ev_name = "POST_PMD"; | |
1436 | power = 0; | |
1437 | break; | |
80114129 MB |
1438 | case SND_SOC_DAPM_WILL_PMU: |
1439 | ev_name = "WILL_PMU"; | |
1440 | power = 1; | |
1441 | break; | |
1442 | case SND_SOC_DAPM_WILL_PMD: | |
1443 | ev_name = "WILL_PMD"; | |
1444 | power = 0; | |
1445 | break; | |
68f89ad8 | 1446 | default: |
a6ed0608 | 1447 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1448 | return; |
1449 | } | |
1450 | ||
39eb5fd1 | 1451 | if (w->new_power != power) |
68f89ad8 MB |
1452 | return; |
1453 | ||
1454 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1455 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1456 | w->name, ev_name); |
eb270e98 | 1457 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1458 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1459 | ret = w->event(w, NULL, event); |
84e90930 | 1460 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1461 | if (ret < 0) |
95dd5cd6 | 1462 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1463 | ev_name, w->name, ret); |
1464 | } | |
1465 | } | |
1466 | ||
b22ead2a | 1467 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1468 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1469 | struct list_head *pending) |
163cac06 | 1470 | { |
ce0fc93a | 1471 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1472 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1473 | int reg; |
b22ead2a MB |
1474 | unsigned int value = 0; |
1475 | unsigned int mask = 0; | |
b22ead2a | 1476 | |
ce0fc93a LPC |
1477 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1478 | reg = w->reg; | |
1479 | dapm = w->dapm; | |
b22ead2a MB |
1480 | |
1481 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1482 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1483 | w->power = w->new_power; |
b22ead2a | 1484 | |
de9ba98b LPC |
1485 | mask |= w->mask << w->shift; |
1486 | if (w->power) | |
1487 | value |= w->on_val << w->shift; | |
b22ead2a | 1488 | else |
de9ba98b | 1489 | value |= w->off_val << w->shift; |
b22ead2a | 1490 | |
ce0fc93a | 1491 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1492 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1493 | w->name, reg, value, mask); | |
81628103 | 1494 | |
68f89ad8 | 1495 | /* Check for events */ |
95dd5cd6 LPC |
1496 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1497 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1498 | } |
1499 | ||
1500 | if (reg >= 0) { | |
29376bc7 MB |
1501 | /* Any widget will do, they should all be updating the |
1502 | * same register. | |
1503 | */ | |
29376bc7 | 1504 | |
ce0fc93a | 1505 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1506 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1507 | value, mask, reg, card->pop_time); |
1508 | pop_wait(card->pop_time); | |
ce0fc93a | 1509 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1510 | } |
1511 | ||
81628103 | 1512 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1513 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1514 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1515 | } |
b22ead2a | 1516 | } |
42aa3418 | 1517 | |
b22ead2a MB |
1518 | /* Apply a DAPM power sequence. |
1519 | * | |
1520 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1521 | * order to minimise the number of writes to the device required | |
1522 | * multiple widgets will be updated in a single write where possible. | |
1523 | * Currently anything that requires more than a single write is not | |
1524 | * handled. | |
1525 | */ | |
95dd5cd6 LPC |
1526 | static void dapm_seq_run(struct snd_soc_card *card, |
1527 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1528 | { |
1529 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1530 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1531 | LIST_HEAD(pending); |
1532 | int cur_sort = -1; | |
20e4859d | 1533 | int cur_subseq = -1; |
b22ead2a | 1534 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1535 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1536 | int ret, i; |
828a842f MB |
1537 | int *sort; |
1538 | ||
1539 | if (power_up) | |
1540 | sort = dapm_up_seq; | |
1541 | else | |
1542 | sort = dapm_down_seq; | |
163cac06 | 1543 | |
b22ead2a MB |
1544 | list_for_each_entry_safe(w, n, list, power_list) { |
1545 | ret = 0; | |
1546 | ||
1547 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1548 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1549 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1550 | if (!list_empty(&pending)) |
95dd5cd6 | 1551 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1552 | |
474b62d6 MB |
1553 | if (cur_dapm && cur_dapm->seq_notifier) { |
1554 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1555 | if (sort[i] == cur_sort) | |
1556 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1557 | i, |
1558 | cur_subseq); | |
474b62d6 MB |
1559 | } |
1560 | ||
eb270e98 MB |
1561 | if (cur_dapm && w->dapm != cur_dapm) |
1562 | soc_dapm_async_complete(cur_dapm); | |
1563 | ||
b22ead2a MB |
1564 | INIT_LIST_HEAD(&pending); |
1565 | cur_sort = -1; | |
b0b3e6f8 | 1566 | cur_subseq = INT_MIN; |
b22ead2a | 1567 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1568 | cur_dapm = NULL; |
b22ead2a MB |
1569 | } |
1570 | ||
163cac06 MB |
1571 | switch (w->id) { |
1572 | case snd_soc_dapm_pre: | |
1573 | if (!w->event) | |
b22ead2a MB |
1574 | list_for_each_entry_safe_continue(w, n, list, |
1575 | power_list); | |
163cac06 | 1576 | |
b22ead2a | 1577 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1578 | ret = w->event(w, |
1579 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1580 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1581 | ret = w->event(w, |
1582 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1583 | break; |
1584 | ||
1585 | case snd_soc_dapm_post: | |
1586 | if (!w->event) | |
b22ead2a MB |
1587 | list_for_each_entry_safe_continue(w, n, list, |
1588 | power_list); | |
163cac06 | 1589 | |
b22ead2a | 1590 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1591 | ret = w->event(w, |
1592 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1593 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1594 | ret = w->event(w, |
1595 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1596 | break; |
1597 | ||
b22ead2a | 1598 | default: |
81628103 MB |
1599 | /* Queue it up for application */ |
1600 | cur_sort = sort[w->id]; | |
20e4859d | 1601 | cur_subseq = w->subseq; |
81628103 | 1602 | cur_reg = w->reg; |
7be31be8 | 1603 | cur_dapm = w->dapm; |
81628103 MB |
1604 | list_move(&w->power_list, &pending); |
1605 | break; | |
163cac06 | 1606 | } |
b22ead2a MB |
1607 | |
1608 | if (ret < 0) | |
f7d41ae8 | 1609 | dev_err(w->dapm->dev, |
30a6a1a4 | 1610 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1611 | } |
b22ead2a MB |
1612 | |
1613 | if (!list_empty(&pending)) | |
95dd5cd6 | 1614 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1615 | |
1616 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1617 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1618 | if (sort[i] == cur_sort) | |
1619 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1620 | i, cur_subseq); |
474b62d6 | 1621 | } |
eb270e98 MB |
1622 | |
1623 | list_for_each_entry(d, &card->dapm_list, list) { | |
1624 | soc_dapm_async_complete(d); | |
1625 | } | |
42aa3418 MB |
1626 | } |
1627 | ||
95dd5cd6 | 1628 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1629 | { |
95dd5cd6 | 1630 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1631 | struct snd_soc_dapm_widget_list *wlist; |
1632 | struct snd_soc_dapm_widget *w = NULL; | |
1633 | unsigned int wi; | |
97404f2e MB |
1634 | int ret; |
1635 | ||
57295073 | 1636 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1637 | return; |
1638 | ||
e84357f7 | 1639 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1640 | |
ce6cfaf1 LPC |
1641 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1642 | w = wlist->widgets[wi]; | |
1643 | ||
1644 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1645 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1646 | if (ret != 0) | |
95dd5cd6 | 1647 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1648 | w->name, ret); |
1649 | } | |
97404f2e MB |
1650 | } |
1651 | ||
ce6cfaf1 LPC |
1652 | if (!w) |
1653 | return; | |
1654 | ||
ce0fc93a LPC |
1655 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1656 | update->val); | |
97404f2e | 1657 | if (ret < 0) |
95dd5cd6 | 1658 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1659 | w->name, ret); |
97404f2e | 1660 | |
e411b0b5 CYT |
1661 | if (update->has_second_set) { |
1662 | ret = soc_dapm_update_bits(w->dapm, update->reg2, | |
1663 | update->mask2, update->val2); | |
1664 | if (ret < 0) | |
1665 | dev_err(w->dapm->dev, | |
1666 | "ASoC: %s DAPM update failed: %d\n", | |
1667 | w->name, ret); | |
1668 | } | |
1669 | ||
ce6cfaf1 LPC |
1670 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1671 | w = wlist->widgets[wi]; | |
1672 | ||
1673 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1674 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1675 | if (ret != 0) | |
95dd5cd6 | 1676 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1677 | w->name, ret); |
1678 | } | |
97404f2e MB |
1679 | } |
1680 | } | |
1681 | ||
9d0624a7 MB |
1682 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1683 | * they're changing state. | |
1684 | */ | |
1685 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1686 | { | |
1687 | struct snd_soc_dapm_context *d = data; | |
1688 | int ret; | |
1689 | ||
c8046000 | 1690 | /* If we're off and we're not supposed to go into STANDBY */ |
56fba41f MB |
1691 | if (d->bias_level == SND_SOC_BIAS_OFF && |
1692 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1693 | if (d->dev) |
1694 | pm_runtime_get_sync(d->dev); | |
1695 | ||
9d0624a7 MB |
1696 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1697 | if (ret != 0) | |
1698 | dev_err(d->dev, | |
30a6a1a4 | 1699 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1700 | } |
1701 | ||
ce85a4d7 LPC |
1702 | /* Prepare for a transition to ON or away from ON */ |
1703 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1704 | d->bias_level != SND_SOC_BIAS_ON) || | |
1705 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1706 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1707 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1708 | if (ret != 0) | |
1709 | dev_err(d->dev, | |
30a6a1a4 | 1710 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1711 | } |
1712 | } | |
1713 | ||
1714 | /* Async callback run prior to DAPM sequences - brings to their final | |
1715 | * state. | |
1716 | */ | |
1717 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1718 | { | |
1719 | struct snd_soc_dapm_context *d = data; | |
1720 | int ret; | |
1721 | ||
1722 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1723 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1724 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1725 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1726 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1727 | if (ret != 0) | |
30a6a1a4 | 1728 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1729 | ret); |
1730 | } | |
97404f2e | 1731 | |
9d0624a7 | 1732 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1733 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1734 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1735 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1736 | if (ret != 0) | |
30a6a1a4 LG |
1737 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1738 | ret); | |
f1aac484 MB |
1739 | |
1740 | if (d->dev) | |
fb644e9c | 1741 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1742 | } |
1743 | ||
1744 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1745 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1746 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1747 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1748 | if (ret != 0) | |
30a6a1a4 | 1749 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1750 | ret); |
1751 | } | |
1752 | } | |
97404f2e | 1753 | |
fe4fda5d MB |
1754 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1755 | bool power, bool connect) | |
1756 | { | |
1757 | /* If a connection is being made or broken then that update | |
1758 | * will have marked the peer dirty, otherwise the widgets are | |
1759 | * not connected and this update has no impact. */ | |
1760 | if (!connect) | |
1761 | return; | |
1762 | ||
1763 | /* If the peer is already in the state we're moving to then we | |
1764 | * won't have an impact on it. */ | |
1765 | if (power != peer->power) | |
75c1f891 | 1766 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1767 | } |
1768 | ||
05623c43 MB |
1769 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1770 | struct list_head *up_list, | |
1771 | struct list_head *down_list) | |
1772 | { | |
db432b41 MB |
1773 | struct snd_soc_dapm_path *path; |
1774 | ||
05623c43 MB |
1775 | if (w->power == power) |
1776 | return; | |
1777 | ||
1778 | trace_snd_soc_dapm_widget_power(w, power); | |
1779 | ||
db432b41 | 1780 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1781 | * also. |
db432b41 | 1782 | */ |
e63bfd45 | 1783 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1784 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1785 | ||
6dd98b0a LPC |
1786 | /* Supplies can't affect their outputs, only their inputs */ |
1787 | if (!w->is_supply) { | |
e63bfd45 | 1788 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1789 | dapm_widget_set_peer_power(path->sink, power, |
1790 | path->connect); | |
db432b41 MB |
1791 | } |
1792 | ||
05623c43 MB |
1793 | if (power) |
1794 | dapm_seq_insert(w, up_list, true); | |
1795 | else | |
1796 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1797 | } |
1798 | ||
7c81beb0 MB |
1799 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1800 | struct list_head *up_list, | |
1801 | struct list_head *down_list) | |
1802 | { | |
7c81beb0 MB |
1803 | int power; |
1804 | ||
1805 | switch (w->id) { | |
1806 | case snd_soc_dapm_pre: | |
1807 | dapm_seq_insert(w, down_list, false); | |
1808 | break; | |
1809 | case snd_soc_dapm_post: | |
1810 | dapm_seq_insert(w, up_list, true); | |
1811 | break; | |
1812 | ||
1813 | default: | |
d805002b | 1814 | power = dapm_widget_power_check(w); |
7c81beb0 | 1815 | |
05623c43 | 1816 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1817 | break; |
1818 | } | |
1819 | } | |
1820 | ||
86dbf2ac LPC |
1821 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1822 | { | |
1823 | if (dapm->idle_bias_off) | |
1824 | return true; | |
1825 | ||
1826 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1827 | case SNDRV_CTL_POWER_D3hot: | |
1828 | case SNDRV_CTL_POWER_D3cold: | |
1829 | return dapm->suspend_bias_off; | |
1830 | default: | |
1831 | break; | |
1832 | } | |
1833 | ||
1834 | return false; | |
1835 | } | |
1836 | ||
2b97eabc RP |
1837 | /* |
1838 | * Scan each dapm widget for complete audio path. | |
1839 | * A complete path is a route that has valid endpoints i.e.:- | |
1840 | * | |
1841 | * o DAC to output pin. | |
c8046000 | 1842 | * o Input pin to ADC. |
2b97eabc RP |
1843 | * o Input pin to Output pin (bypass, sidetone) |
1844 | * o DAC to ADC (loopback). | |
1845 | */ | |
95dd5cd6 | 1846 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1847 | { |
1848 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1849 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1850 | LIST_HEAD(up_list); |
1851 | LIST_HEAD(down_list); | |
2955b47d | 1852 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1853 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1854 | |
f9fa2b18 MB |
1855 | lockdep_assert_held(&card->dapm_mutex); |
1856 | ||
84e90930 MB |
1857 | trace_snd_soc_dapm_start(card); |
1858 | ||
56fba41f | 1859 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1860 | if (dapm_idle_bias_off(d)) |
497098be MB |
1861 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1862 | else | |
1863 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1864 | } |
7be31be8 | 1865 | |
6c120e19 | 1866 | dapm_reset(card); |
9b8a83b2 | 1867 | |
6d3ddc81 | 1868 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1869 | * lists indicating if they should be powered up or down. We |
1870 | * only check widgets that have been flagged as dirty but note | |
1871 | * that new widgets may be added to the dirty list while we | |
1872 | * iterate. | |
6d3ddc81 | 1873 | */ |
db432b41 | 1874 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1875 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1876 | } |
1877 | ||
f9de6d74 | 1878 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1879 | switch (w->id) { |
1880 | case snd_soc_dapm_pre: | |
1881 | case snd_soc_dapm_post: | |
1882 | /* These widgets always need to be powered */ | |
1883 | break; | |
1884 | default: | |
1885 | list_del_init(&w->dirty); | |
1886 | break; | |
1887 | } | |
db432b41 | 1888 | |
39eb5fd1 | 1889 | if (w->new_power) { |
f9de6d74 MB |
1890 | d = w->dapm; |
1891 | ||
1892 | /* Supplies and micbiases only bring the | |
1893 | * context up to STANDBY as unless something | |
1894 | * else is active and passing audio they | |
afe62367 MB |
1895 | * generally don't require full power. Signal |
1896 | * generators are virtual pins and have no | |
1897 | * power impact themselves. | |
f9de6d74 MB |
1898 | */ |
1899 | switch (w->id) { | |
afe62367 | 1900 | case snd_soc_dapm_siggen: |
da83fea6 | 1901 | case snd_soc_dapm_vmid: |
afe62367 | 1902 | break; |
f9de6d74 | 1903 | case snd_soc_dapm_supply: |
62ea874a | 1904 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1905 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1906 | case snd_soc_dapm_micbias: |
1907 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1908 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1909 | break; | |
1910 | default: | |
1911 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1912 | break; | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | } | |
1917 | ||
85a843c5 MB |
1918 | /* Force all contexts in the card to the same bias state if |
1919 | * they're not ground referenced. | |
1920 | */ | |
56fba41f | 1921 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1922 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1923 | if (d->target_bias_level > bias) |
1924 | bias = d->target_bias_level; | |
52ba67bf | 1925 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1926 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1927 | d->target_bias_level = bias; |
52ba67bf | 1928 | |
de02d078 | 1929 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1930 | |
17282ba4 XX |
1931 | /* Run card bias changes at first */ |
1932 | dapm_pre_sequence_async(&card->dapm, 0); | |
1933 | /* Run other bias changes in parallel */ | |
1934 | list_for_each_entry(d, &card->dapm_list, list) { | |
1935 | if (d != &card->dapm) | |
1936 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1937 | &async_domain); | |
1938 | } | |
9d0624a7 | 1939 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1940 | |
cf1f7c6e | 1941 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1942 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1943 | } |
1944 | ||
cf1f7c6e | 1945 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1946 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1947 | } |
1948 | ||
6d3ddc81 | 1949 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1950 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1951 | |
95dd5cd6 | 1952 | dapm_widget_update(card); |
97404f2e | 1953 | |
6d3ddc81 | 1954 | /* Now power up. */ |
95dd5cd6 | 1955 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1956 | |
9d0624a7 | 1957 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1958 | list_for_each_entry(d, &card->dapm_list, list) { |
1959 | if (d != &card->dapm) | |
1960 | async_schedule_domain(dapm_post_sequence_async, d, | |
1961 | &async_domain); | |
1962 | } | |
9d0624a7 | 1963 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1964 | /* Run card bias changes at last */ |
1965 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1966 | |
8078d87f LG |
1967 | /* do we need to notify any clients that DAPM event is complete */ |
1968 | list_for_each_entry(d, &card->dapm_list, list) { | |
1969 | if (d->stream_event) | |
1970 | d->stream_event(d, event); | |
1971 | } | |
1972 | ||
95dd5cd6 | 1973 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1974 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1975 | pop_wait(card->pop_time); |
cb507e7e | 1976 | |
84e90930 MB |
1977 | trace_snd_soc_dapm_done(card); |
1978 | ||
42aa3418 | 1979 | return 0; |
2b97eabc RP |
1980 | } |
1981 | ||
79fb9387 | 1982 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1983 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1984 | char __user *user_buf, | |
1985 | size_t count, loff_t *ppos) | |
1986 | { | |
1987 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1988 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 1989 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
1990 | char *buf; |
1991 | int in, out; | |
1992 | ssize_t ret; | |
1993 | struct snd_soc_dapm_path *p = NULL; | |
1994 | ||
1995 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1996 | if (!buf) | |
1997 | return -ENOMEM; | |
1998 | ||
e50b1e06 LPC |
1999 | mutex_lock(&card->dapm_mutex); |
2000 | ||
c1862c8b LPC |
2001 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
2002 | if (w->is_supply) { | |
2003 | in = 0; | |
2004 | out = 0; | |
2005 | } else { | |
6742064a PS |
2006 | in = is_connected_input_ep(w, NULL, NULL); |
2007 | out = is_connected_output_ep(w, NULL, NULL); | |
c1862c8b | 2008 | } |
79fb9387 | 2009 | |
f13ebada MB |
2010 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
2011 | w->name, w->power ? "On" : "Off", | |
2012 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 2013 | |
d033c36a MB |
2014 | if (w->reg >= 0) |
2015 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
2016 | " - R%d(0x%x) mask 0x%x", |
2017 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
2018 | |
2019 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
2020 | ||
3eef08ba MB |
2021 | if (w->sname) |
2022 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
2023 | w->sname, | |
2024 | w->active ? "active" : "inactive"); | |
79fb9387 | 2025 | |
a3423b02 LPC |
2026 | snd_soc_dapm_for_each_direction(dir) { |
2027 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
2028 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
2029 | if (p->connected && !p->connected(w, p->node[rdir])) | |
2030 | continue; | |
215edda3 | 2031 | |
a3423b02 LPC |
2032 | if (!p->connect) |
2033 | continue; | |
215edda3 | 2034 | |
79fb9387 | 2035 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
2036 | " %s \"%s\" \"%s\"\n", |
2037 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 2038 | p->name ? p->name : "static", |
a3423b02 LPC |
2039 | p->node[rdir]->name); |
2040 | } | |
79fb9387 MB |
2041 | } |
2042 | ||
e50b1e06 LPC |
2043 | mutex_unlock(&card->dapm_mutex); |
2044 | ||
79fb9387 MB |
2045 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2046 | ||
2047 | kfree(buf); | |
2048 | return ret; | |
2049 | } | |
2050 | ||
2051 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2052 | .open = simple_open, |
79fb9387 | 2053 | .read = dapm_widget_power_read_file, |
6038f373 | 2054 | .llseek = default_llseek, |
79fb9387 MB |
2055 | }; |
2056 | ||
ef49e4fa MB |
2057 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2058 | size_t count, loff_t *ppos) | |
2059 | { | |
2060 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2061 | char *level; | |
2062 | ||
2063 | switch (dapm->bias_level) { | |
2064 | case SND_SOC_BIAS_ON: | |
2065 | level = "On\n"; | |
2066 | break; | |
2067 | case SND_SOC_BIAS_PREPARE: | |
2068 | level = "Prepare\n"; | |
2069 | break; | |
2070 | case SND_SOC_BIAS_STANDBY: | |
2071 | level = "Standby\n"; | |
2072 | break; | |
2073 | case SND_SOC_BIAS_OFF: | |
2074 | level = "Off\n"; | |
2075 | break; | |
2076 | default: | |
a6ed0608 | 2077 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2078 | level = "Unknown\n"; |
2079 | break; | |
2080 | } | |
2081 | ||
2082 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2083 | strlen(level)); | |
2084 | } | |
2085 | ||
2086 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2087 | .open = simple_open, |
ef49e4fa MB |
2088 | .read = dapm_bias_read_file, |
2089 | .llseek = default_llseek, | |
2090 | }; | |
2091 | ||
8eecaf62 LPC |
2092 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2093 | struct dentry *parent) | |
79fb9387 | 2094 | { |
79fb9387 MB |
2095 | struct dentry *d; |
2096 | ||
6553bf06 LPC |
2097 | if (!parent) |
2098 | return; | |
2099 | ||
8eecaf62 LPC |
2100 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2101 | ||
2102 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2103 | dev_warn(dapm->dev, |
30a6a1a4 | 2104 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2105 | return; |
8eecaf62 | 2106 | } |
79fb9387 | 2107 | |
ef49e4fa MB |
2108 | d = debugfs_create_file("bias_level", 0444, |
2109 | dapm->debugfs_dapm, dapm, | |
2110 | &dapm_bias_fops); | |
2111 | if (!d) | |
2112 | dev_warn(dapm->dev, | |
2113 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2114 | } |
ef49e4fa | 2115 | |
d5d1e0be LPC |
2116 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2117 | { | |
2118 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2119 | struct dentry *d; | |
79fb9387 | 2120 | |
d5d1e0be LPC |
2121 | if (!dapm->debugfs_dapm || !w->name) |
2122 | return; | |
2123 | ||
2124 | d = debugfs_create_file(w->name, 0444, | |
2125 | dapm->debugfs_dapm, w, | |
2126 | &dapm_widget_power_fops); | |
2127 | if (!d) | |
2128 | dev_warn(w->dapm->dev, | |
2129 | "ASoC: Failed to create %s debugfs file\n", | |
2130 | w->name); | |
79fb9387 | 2131 | } |
d5d1e0be | 2132 | |
6c45e126 LPC |
2133 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2134 | { | |
2135 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2136 | } | |
2137 | ||
79fb9387 | 2138 | #else |
8eecaf62 LPC |
2139 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2140 | struct dentry *parent) | |
79fb9387 MB |
2141 | { |
2142 | } | |
d5d1e0be LPC |
2143 | |
2144 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2145 | { | |
2146 | } | |
2147 | ||
6c45e126 LPC |
2148 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2149 | { | |
2150 | } | |
2151 | ||
79fb9387 MB |
2152 | #endif |
2153 | ||
4a201948 LPC |
2154 | /* |
2155 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2156 | * @path: The path to update | |
2157 | * @connect: The new connect state of the path. True if the path is connected, | |
c8046000 | 2158 | * false if it is disconnected. |
4a201948 LPC |
2159 | * @reason: The reason why the path changed (for debugging only) |
2160 | */ | |
2161 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2162 | bool connect, const char *reason) | |
2163 | { | |
2164 | if (path->connect == connect) | |
2165 | return; | |
2166 | ||
2167 | path->connect = connect; | |
2168 | dapm_mark_dirty(path->source, reason); | |
2169 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2170 | dapm_path_invalidate(path); |
4a201948 LPC |
2171 | } |
2172 | ||
2b97eabc | 2173 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2174 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2175 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2176 | { |
2177 | struct snd_soc_dapm_path *path; | |
2178 | int found = 0; | |
4a201948 | 2179 | bool connect; |
2b97eabc | 2180 | |
f9fa2b18 MB |
2181 | lockdep_assert_held(&card->dapm_mutex); |
2182 | ||
2b97eabc | 2183 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2184 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2185 | found = 1; |
2186 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2187 | if (!(strcmp(path->name, e->texts[mux]))) |
2188 | connect = true; | |
2189 | else | |
2190 | connect = false; | |
2191 | ||
2192 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2193 | } |
2194 | ||
ce6cfaf1 | 2195 | if (found) |
95dd5cd6 | 2196 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2197 | |
618dae11 | 2198 | return found; |
2b97eabc | 2199 | } |
4edbb345 | 2200 | |
ce6cfaf1 | 2201 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2202 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2203 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2204 | { |
ce6cfaf1 | 2205 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2206 | int ret; |
2207 | ||
3cd04343 | 2208 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2209 | card->update = update; |
95dd5cd6 | 2210 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2211 | card->update = NULL; |
4edbb345 | 2212 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2213 | if (ret > 0) |
c3f48ae6 | 2214 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2215 | return ret; |
2216 | } | |
40f02cd9 | 2217 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2218 | |
1b075e3f | 2219 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2220 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
e7aa450f CYT |
2221 | struct snd_kcontrol *kcontrol, |
2222 | int connect, int rconnect) | |
2b97eabc RP |
2223 | { |
2224 | struct snd_soc_dapm_path *path; | |
2225 | int found = 0; | |
2226 | ||
f9fa2b18 MB |
2227 | lockdep_assert_held(&card->dapm_mutex); |
2228 | ||
2b97eabc | 2229 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2230 | dapm_kcontrol_for_each_path(path, kcontrol) { |
e7aa450f CYT |
2231 | /* |
2232 | * Ideally this function should support any number of | |
2233 | * paths and channels. But since kcontrols only come | |
2234 | * in mono and stereo variants, we are limited to 2 | |
2235 | * channels. | |
2236 | * | |
2237 | * The following code assumes for stereo controls the | |
2238 | * first path (when 'found == 0') is the left channel, | |
2239 | * and all remaining paths (when 'found == 1') are the | |
2240 | * right channel. | |
2241 | * | |
2242 | * A stereo control is signified by a valid 'rconnect' | |
2243 | * value, either 0 for unconnected, or >= 0 for connected. | |
2244 | * This is chosen instead of using snd_soc_volsw_is_stereo, | |
2245 | * so that the behavior of snd_soc_dapm_mixer_update_power | |
2246 | * doesn't change even when the kcontrol passed in is | |
2247 | * stereo. | |
2248 | * | |
2249 | * It passes 'connect' as the path connect status for | |
2250 | * the left channel, and 'rconnect' for the right | |
2251 | * channel. | |
2252 | */ | |
2253 | if (found && rconnect >= 0) | |
2254 | soc_dapm_connect_path(path, rconnect, "mixer update"); | |
2255 | else | |
2256 | soc_dapm_connect_path(path, connect, "mixer update"); | |
2b97eabc | 2257 | found = 1; |
2b97eabc RP |
2258 | } |
2259 | ||
ce6cfaf1 | 2260 | if (found) |
95dd5cd6 | 2261 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2262 | |
618dae11 | 2263 | return found; |
2b97eabc | 2264 | } |
4edbb345 | 2265 | |
ce6cfaf1 | 2266 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2267 | struct snd_kcontrol *kcontrol, int connect, |
2268 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2269 | { |
ce6cfaf1 | 2270 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2271 | int ret; |
2272 | ||
3cd04343 | 2273 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2274 | card->update = update; |
e7aa450f | 2275 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, -1); |
564c6504 | 2276 | card->update = NULL; |
4edbb345 | 2277 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2278 | if (ret > 0) |
c3f48ae6 | 2279 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2280 | return ret; |
2281 | } | |
40f02cd9 | 2282 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2283 | |
b3c25fb7 LPC |
2284 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2285 | char *buf) | |
2b97eabc | 2286 | { |
b3c25fb7 | 2287 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2288 | struct snd_soc_dapm_widget *w; |
2289 | int count = 0; | |
2290 | char *state = "not set"; | |
2291 | ||
47325078 MB |
2292 | /* card won't be set for the dummy component, as a spot fix |
2293 | * we're checking for that case specifically here but in future | |
2294 | * we will ensure that the dummy component looks like others. | |
2295 | */ | |
2296 | if (!cmpnt->card) | |
2297 | return 0; | |
2298 | ||
b3c25fb7 LPC |
2299 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2300 | if (w->dapm != dapm) | |
97c866de | 2301 | continue; |
2b97eabc | 2302 | |
c8046000 | 2303 | /* only display widgets that burn power */ |
2b97eabc RP |
2304 | switch (w->id) { |
2305 | case snd_soc_dapm_hp: | |
2306 | case snd_soc_dapm_mic: | |
2307 | case snd_soc_dapm_spk: | |
2308 | case snd_soc_dapm_line: | |
2309 | case snd_soc_dapm_micbias: | |
2310 | case snd_soc_dapm_dac: | |
2311 | case snd_soc_dapm_adc: | |
2312 | case snd_soc_dapm_pga: | |
d88429a6 | 2313 | case snd_soc_dapm_out_drv: |
2b97eabc | 2314 | case snd_soc_dapm_mixer: |
ca9c1aae | 2315 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2316 | case snd_soc_dapm_supply: |
62ea874a | 2317 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2318 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2319 | if (w->name) |
2320 | count += sprintf(buf + count, "%s: %s\n", | |
2321 | w->name, w->power ? "On":"Off"); | |
2322 | break; | |
2323 | default: | |
2324 | break; | |
2325 | } | |
2326 | } | |
2327 | ||
b3c25fb7 | 2328 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2329 | case SND_SOC_BIAS_ON: |
2330 | state = "On"; | |
2b97eabc | 2331 | break; |
0be9898a MB |
2332 | case SND_SOC_BIAS_PREPARE: |
2333 | state = "Prepare"; | |
2b97eabc | 2334 | break; |
0be9898a MB |
2335 | case SND_SOC_BIAS_STANDBY: |
2336 | state = "Standby"; | |
2b97eabc | 2337 | break; |
0be9898a MB |
2338 | case SND_SOC_BIAS_OFF: |
2339 | state = "Off"; | |
2b97eabc RP |
2340 | break; |
2341 | } | |
2342 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2343 | ||
2344 | return count; | |
2345 | } | |
2346 | ||
44ba2641 BC |
2347 | /* show dapm widget status in sys fs */ |
2348 | static ssize_t dapm_widget_show(struct device *dev, | |
2349 | struct device_attribute *attr, char *buf) | |
2350 | { | |
2351 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2352 | int i, count = 0; | |
2353 | ||
e50b1e06 LPC |
2354 | mutex_lock(&rtd->card->dapm_mutex); |
2355 | ||
44ba2641 | 2356 | for (i = 0; i < rtd->num_codecs; i++) { |
b3c25fb7 LPC |
2357 | struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; |
2358 | ||
2359 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2360 | } |
2361 | ||
e50b1e06 LPC |
2362 | mutex_unlock(&rtd->card->dapm_mutex); |
2363 | ||
44ba2641 BC |
2364 | return count; |
2365 | } | |
2366 | ||
2b97eabc RP |
2367 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2368 | ||
d29697dc TI |
2369 | struct attribute *soc_dapm_dev_attrs[] = { |
2370 | &dev_attr_dapm_widget.attr, | |
2371 | NULL | |
2372 | }; | |
2b97eabc | 2373 | |
8872293f LPC |
2374 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2375 | { | |
a3423b02 LPC |
2376 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2377 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2378 | list_del(&path->list_kcontrol); |
8872293f | 2379 | list_del(&path->list); |
8872293f LPC |
2380 | kfree(path); |
2381 | } | |
2382 | ||
b97e2698 LPC |
2383 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2384 | { | |
2385 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2386 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2387 | |
2388 | list_del(&w->list); | |
2389 | /* | |
2390 | * remove source and sink paths associated to this widget. | |
2391 | * While removing the path, remove reference to it from both | |
2392 | * source and sink widgets so that path is removed only once. | |
2393 | */ | |
a3423b02 LPC |
2394 | snd_soc_dapm_for_each_direction(dir) { |
2395 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2396 | dapm_free_path(p); | |
2397 | } | |
b97e2698 LPC |
2398 | |
2399 | kfree(w->kcontrols); | |
48068961 | 2400 | kfree_const(w->name); |
b97e2698 LPC |
2401 | kfree(w); |
2402 | } | |
2403 | ||
fd589a1b JS |
2404 | void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm) |
2405 | { | |
2406 | dapm->path_sink_cache.widget = NULL; | |
2407 | dapm->path_source_cache.widget = NULL; | |
2408 | } | |
2409 | ||
2b97eabc | 2410 | /* free all dapm widgets and resources */ |
ce6120cc | 2411 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2412 | { |
2413 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2414 | |
97c866de JN |
2415 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2416 | if (w->dapm != dapm) | |
2417 | continue; | |
b97e2698 | 2418 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2419 | } |
fd589a1b | 2420 | snd_soc_dapm_reset_cache(dapm); |
2b97eabc RP |
2421 | } |
2422 | ||
91a5fca4 LPC |
2423 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2424 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2425 | bool search_other_contexts) | |
a5302181 LG |
2426 | { |
2427 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2428 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2429 | |
97c866de | 2430 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2431 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2432 | if (w->dapm == dapm) |
2433 | return w; | |
2434 | else | |
2435 | fallback = w; | |
a5302181 LG |
2436 | } |
2437 | } | |
2438 | ||
91a5fca4 LPC |
2439 | if (search_other_contexts) |
2440 | return fallback; | |
2441 | ||
2442 | return NULL; | |
2443 | } | |
2444 | ||
2445 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2446 | const char *pin, int status) | |
2447 | { | |
2448 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2449 | ||
f9fa2b18 MB |
2450 | dapm_assert_locked(dapm); |
2451 | ||
91a5fca4 | 2452 | if (!w) { |
30a6a1a4 | 2453 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2454 | return -EINVAL; |
0d86733c MB |
2455 | } |
2456 | ||
92a99ea4 | 2457 | if (w->connected != status) { |
1a8b2d9d | 2458 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2459 | dapm_widget_invalidate_input_paths(w); |
2460 | dapm_widget_invalidate_output_paths(w); | |
2461 | } | |
1a8b2d9d | 2462 | |
91a5fca4 LPC |
2463 | w->connected = status; |
2464 | if (status == 0) | |
2465 | w->force = 0; | |
2466 | ||
2467 | return 0; | |
a5302181 LG |
2468 | } |
2469 | ||
2b97eabc | 2470 | /** |
3eb29dfb | 2471 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2472 | * @dapm: DAPM context |
2b97eabc RP |
2473 | * |
2474 | * Walks all dapm audio paths and powers widgets according to their | |
2475 | * stream or path usage. | |
2476 | * | |
3eb29dfb CK |
2477 | * Requires external locking. |
2478 | * | |
2b97eabc RP |
2479 | * Returns 0 for success. |
2480 | */ | |
3eb29dfb | 2481 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2482 | { |
4f4c0072 MB |
2483 | /* |
2484 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2485 | * silly DAPM runs during card startup. | |
2486 | */ | |
2487 | if (!dapm->card || !dapm->card->instantiated) | |
2488 | return 0; | |
2489 | ||
3eb29dfb CK |
2490 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2491 | } | |
2492 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2493 | ||
2494 | /** | |
2495 | * snd_soc_dapm_sync - scan and power dapm paths | |
2496 | * @dapm: DAPM context | |
2497 | * | |
2498 | * Walks all dapm audio paths and powers widgets according to their | |
2499 | * stream or path usage. | |
2500 | * | |
2501 | * Returns 0 for success. | |
2502 | */ | |
2503 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2504 | { | |
2505 | int ret; | |
2506 | ||
3cd04343 | 2507 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2508 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2509 | mutex_unlock(&dapm->card->dapm_mutex); |
2510 | return ret; | |
2b97eabc | 2511 | } |
a5302181 | 2512 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2513 | |
6dd98b0a LPC |
2514 | /* |
2515 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2516 | * @w: The widget for which to update the flags | |
2517 | * | |
2518 | * Some widgets have a dynamic category which depends on which neighbors they | |
2519 | * are connected to. This function update the category for these widgets. | |
2520 | * | |
2521 | * This function must be called whenever a path is added or removed to a widget. | |
2522 | */ | |
2523 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2524 | { | |
a3423b02 | 2525 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2526 | struct snd_soc_dapm_path *p; |
a3423b02 | 2527 | unsigned int ep; |
6dd98b0a LPC |
2528 | |
2529 | switch (w->id) { | |
2530 | case snd_soc_dapm_input: | |
c8046000 | 2531 | /* On a fully routed card an input is never a source */ |
86d75003 | 2532 | if (w->dapm->card->fully_routed) |
a3423b02 LPC |
2533 | return; |
2534 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2535 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2536 | if (p->source->id == snd_soc_dapm_micbias || |
2537 | p->source->id == snd_soc_dapm_mic || | |
2538 | p->source->id == snd_soc_dapm_line || | |
2539 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2540 | ep = 0; |
6dd98b0a LPC |
2541 | break; |
2542 | } | |
2543 | } | |
2544 | break; | |
2545 | case snd_soc_dapm_output: | |
86d75003 LPC |
2546 | /* On a fully routed card a output is never a sink */ |
2547 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2548 | return; |
2549 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2550 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2551 | if (p->sink->id == snd_soc_dapm_spk || |
2552 | p->sink->id == snd_soc_dapm_hp || | |
2553 | p->sink->id == snd_soc_dapm_line || | |
2554 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2555 | ep = 0; |
6dd98b0a LPC |
2556 | break; |
2557 | } | |
2558 | } | |
2559 | break; | |
2560 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2561 | ep = 0; |
2562 | snd_soc_dapm_for_each_direction(dir) { | |
2563 | if (!list_empty(&w->edges[dir])) | |
2564 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2565 | } | |
6dd98b0a LPC |
2566 | break; |
2567 | default: | |
a3423b02 | 2568 | return; |
6dd98b0a | 2569 | } |
a3423b02 LPC |
2570 | |
2571 | w->is_ep = ep; | |
6dd98b0a LPC |
2572 | } |
2573 | ||
d714f97c LPC |
2574 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2575 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2576 | const char *control) | |
2577 | { | |
2578 | bool dynamic_source = false; | |
2579 | bool dynamic_sink = false; | |
2580 | ||
2581 | if (!control) | |
2582 | return 0; | |
2583 | ||
2584 | switch (source->id) { | |
2585 | case snd_soc_dapm_demux: | |
2586 | dynamic_source = true; | |
2587 | break; | |
2588 | default: | |
2589 | break; | |
2590 | } | |
2591 | ||
2592 | switch (sink->id) { | |
2593 | case snd_soc_dapm_mux: | |
2594 | case snd_soc_dapm_switch: | |
2595 | case snd_soc_dapm_mixer: | |
2596 | case snd_soc_dapm_mixer_named_ctl: | |
2597 | dynamic_sink = true; | |
2598 | break; | |
2599 | default: | |
2600 | break; | |
2601 | } | |
2602 | ||
2603 | if (dynamic_source && dynamic_sink) { | |
2604 | dev_err(dapm->dev, | |
2605 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2606 | source->name, control, sink->name); | |
2607 | return -EINVAL; | |
2608 | } else if (!dynamic_source && !dynamic_sink) { | |
2609 | dev_err(dapm->dev, | |
2610 | "Control not supported for path %s -> [%s] -> %s\n", | |
2611 | source->name, control, sink->name); | |
2612 | return -EINVAL; | |
2613 | } | |
2614 | ||
2615 | return 0; | |
2616 | } | |
2617 | ||
2553628e LPC |
2618 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2619 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2620 | const char *control, | |
2621 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2622 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2623 | { |
a3423b02 LPC |
2624 | struct snd_soc_dapm_widget *widgets[2]; |
2625 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2626 | struct snd_soc_dapm_path *path; |
2553628e | 2627 | int ret; |
2b97eabc | 2628 | |
e409dfbf LPC |
2629 | if (wsink->is_supply && !wsource->is_supply) { |
2630 | dev_err(dapm->dev, | |
2631 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2632 | wsource->name, wsink->name); | |
2633 | return -EINVAL; | |
2634 | } | |
2635 | ||
2636 | if (connected && !wsource->is_supply) { | |
2637 | dev_err(dapm->dev, | |
2638 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2639 | wsource->name, wsink->name); | |
2640 | return -EINVAL; | |
2641 | } | |
2642 | ||
2643 | if (wsource->is_supply && control) { | |
2644 | dev_err(dapm->dev, | |
2645 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2646 | wsource->name, control, wsink->name); | |
2647 | return -EINVAL; | |
2648 | } | |
2649 | ||
d714f97c LPC |
2650 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2651 | if (ret) | |
2652 | return ret; | |
2653 | ||
2b97eabc RP |
2654 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2655 | if (!path) | |
2656 | return -ENOMEM; | |
2657 | ||
a3423b02 LPC |
2658 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2659 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2660 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2661 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2662 | ||
2553628e | 2663 | path->connected = connected; |
2b97eabc | 2664 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2665 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2666 | |
c1862c8b LPC |
2667 | if (wsource->is_supply || wsink->is_supply) |
2668 | path->is_supply = 1; | |
2669 | ||
2b97eabc RP |
2670 | /* connect static paths */ |
2671 | if (control == NULL) { | |
2b97eabc | 2672 | path->connect = 1; |
5fe5b767 | 2673 | } else { |
d714f97c LPC |
2674 | switch (wsource->id) { |
2675 | case snd_soc_dapm_demux: | |
2676 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2677 | if (ret) | |
2678 | goto err; | |
2679 | break; | |
2680 | default: | |
2681 | break; | |
2682 | } | |
2683 | ||
5fe5b767 LPC |
2684 | switch (wsink->id) { |
2685 | case snd_soc_dapm_mux: | |
d714f97c | 2686 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2687 | if (ret != 0) |
2688 | goto err; | |
2689 | break; | |
2690 | case snd_soc_dapm_switch: | |
2691 | case snd_soc_dapm_mixer: | |
2692 | case snd_soc_dapm_mixer_named_ctl: | |
2693 | ret = dapm_connect_mixer(dapm, path, control); | |
2694 | if (ret != 0) | |
2695 | goto err; | |
2696 | break; | |
2697 | default: | |
d714f97c | 2698 | break; |
5fe5b767 | 2699 | } |
2b97eabc | 2700 | } |
fabd0384 | 2701 | |
5fe5b767 | 2702 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2703 | snd_soc_dapm_for_each_direction(dir) |
2704 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2705 | |
a3423b02 LPC |
2706 | snd_soc_dapm_for_each_direction(dir) { |
2707 | dapm_update_widget_flags(widgets[dir]); | |
2708 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2709 | } | |
5fe5b767 | 2710 | |
92a99ea4 LPC |
2711 | if (dapm->card->instantiated && path->connect) |
2712 | dapm_path_invalidate(path); | |
2713 | ||
2b97eabc | 2714 | return 0; |
2553628e LPC |
2715 | err: |
2716 | kfree(path); | |
2717 | return ret; | |
2718 | } | |
2b97eabc | 2719 | |
2553628e | 2720 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2721 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2722 | { |
2723 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2724 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2725 | const char *sink; | |
2726 | const char *source; | |
2727 | char prefixed_sink[80]; | |
2728 | char prefixed_source[80]; | |
94f99c87 | 2729 | const char *prefix; |
2553628e LPC |
2730 | int ret; |
2731 | ||
94f99c87 LPC |
2732 | prefix = soc_dapm_prefix(dapm); |
2733 | if (prefix) { | |
2553628e | 2734 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2735 | prefix, route->sink); |
2553628e LPC |
2736 | sink = prefixed_sink; |
2737 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2738 | prefix, route->source); |
2553628e LPC |
2739 | source = prefixed_source; |
2740 | } else { | |
2741 | sink = route->sink; | |
2742 | source = route->source; | |
2743 | } | |
2744 | ||
45a110a1 CK |
2745 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2746 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2747 | ||
2748 | if (wsink && wsource) | |
2749 | goto skip_search; | |
2750 | ||
2553628e LPC |
2751 | /* |
2752 | * find src and dest widgets over all widgets but favor a widget from | |
2753 | * current DAPM context | |
2754 | */ | |
2755 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2756 | if (!wsink && !(strcmp(w->name, sink))) { | |
2757 | wtsink = w; | |
70c75109 | 2758 | if (w->dapm == dapm) { |
2553628e | 2759 | wsink = w; |
70c75109 CK |
2760 | if (wsource) |
2761 | break; | |
2762 | } | |
2553628e LPC |
2763 | continue; |
2764 | } | |
2765 | if (!wsource && !(strcmp(w->name, source))) { | |
2766 | wtsource = w; | |
70c75109 | 2767 | if (w->dapm == dapm) { |
2553628e | 2768 | wsource = w; |
70c75109 CK |
2769 | if (wsink) |
2770 | break; | |
2771 | } | |
2553628e LPC |
2772 | } |
2773 | } | |
2774 | /* use widget from another DAPM context if not found from this */ | |
2775 | if (!wsink) | |
2776 | wsink = wtsink; | |
2777 | if (!wsource) | |
2778 | wsource = wtsource; | |
2779 | ||
2780 | if (wsource == NULL) { | |
2781 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2782 | route->source); | |
2783 | return -ENODEV; | |
2784 | } | |
2785 | if (wsink == NULL) { | |
2786 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2787 | route->sink); | |
2788 | return -ENODEV; | |
2789 | } | |
2790 | ||
45a110a1 CK |
2791 | skip_search: |
2792 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2793 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2794 | ||
2553628e LPC |
2795 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2796 | route->connected); | |
2797 | if (ret) | |
2798 | goto err; | |
2799 | ||
2800 | return 0; | |
2b97eabc | 2801 | err: |
30a6a1a4 | 2802 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2803 | source, route->control, sink); |
2b97eabc RP |
2804 | return ret; |
2805 | } | |
105f1c28 | 2806 | |
efcc3c61 MB |
2807 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2808 | const struct snd_soc_dapm_route *route) | |
2809 | { | |
6dd98b0a | 2810 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2811 | struct snd_soc_dapm_path *path, *p; |
2812 | const char *sink; | |
2813 | const char *source; | |
2814 | char prefixed_sink[80]; | |
2815 | char prefixed_source[80]; | |
94f99c87 | 2816 | const char *prefix; |
efcc3c61 MB |
2817 | |
2818 | if (route->control) { | |
2819 | dev_err(dapm->dev, | |
30a6a1a4 | 2820 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2821 | return -EINVAL; |
2822 | } | |
2823 | ||
94f99c87 LPC |
2824 | prefix = soc_dapm_prefix(dapm); |
2825 | if (prefix) { | |
efcc3c61 | 2826 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2827 | prefix, route->sink); |
efcc3c61 MB |
2828 | sink = prefixed_sink; |
2829 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2830 | prefix, route->source); |
efcc3c61 MB |
2831 | source = prefixed_source; |
2832 | } else { | |
2833 | sink = route->sink; | |
2834 | source = route->source; | |
2835 | } | |
2836 | ||
2837 | path = NULL; | |
2838 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2839 | if (strcmp(p->source->name, source) != 0) | |
2840 | continue; | |
2841 | if (strcmp(p->sink->name, sink) != 0) | |
2842 | continue; | |
2843 | path = p; | |
2844 | break; | |
2845 | } | |
2846 | ||
2847 | if (path) { | |
6dd98b0a LPC |
2848 | wsource = path->source; |
2849 | wsink = path->sink; | |
2850 | ||
2851 | dapm_mark_dirty(wsource, "Route removed"); | |
2852 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2853 | if (path->connect) |
2854 | dapm_path_invalidate(path); | |
efcc3c61 | 2855 | |
8872293f | 2856 | dapm_free_path(path); |
6dd98b0a LPC |
2857 | |
2858 | /* Update any path related flags */ | |
2859 | dapm_update_widget_flags(wsource); | |
2860 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2861 | } else { |
30a6a1a4 | 2862 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2863 | source, sink); |
2864 | } | |
2865 | ||
2866 | return 0; | |
2867 | } | |
2868 | ||
105f1c28 MB |
2869 | /** |
2870 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2871 | * @dapm: DAPM context |
105f1c28 MB |
2872 | * @route: audio routes |
2873 | * @num: number of routes | |
2874 | * | |
2875 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2876 | * the widget receiving the audio signal, whilst the source is the sender | |
2877 | * of the audio signal. | |
2878 | * | |
2879 | * Returns 0 for success else error. On error all resources can be freed | |
2880 | * with a call to snd_soc_card_free(). | |
2881 | */ | |
ce6120cc | 2882 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2883 | const struct snd_soc_dapm_route *route, int num) |
2884 | { | |
62d4a4b9 | 2885 | int i, r, ret = 0; |
105f1c28 | 2886 | |
a73fb2df | 2887 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2888 | for (i = 0; i < num; i++) { |
a4e9154c | 2889 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2890 | if (r < 0) { |
30a6a1a4 LG |
2891 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2892 | route->source, | |
2893 | route->control ? route->control : "direct", | |
2894 | route->sink); | |
62d4a4b9 | 2895 | ret = r; |
105f1c28 MB |
2896 | } |
2897 | route++; | |
2898 | } | |
a73fb2df | 2899 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2900 | |
60884c27 | 2901 | return ret; |
105f1c28 MB |
2902 | } |
2903 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2904 | ||
efcc3c61 MB |
2905 | /** |
2906 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2907 | * @dapm: DAPM context | |
2908 | * @route: audio routes | |
2909 | * @num: number of routes | |
2910 | * | |
2911 | * Removes routes from the DAPM context. | |
2912 | */ | |
2913 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2914 | const struct snd_soc_dapm_route *route, int num) | |
2915 | { | |
e066ea22 | 2916 | int i; |
efcc3c61 MB |
2917 | |
2918 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2919 | for (i = 0; i < num; i++) { | |
2920 | snd_soc_dapm_del_route(dapm, route); | |
2921 | route++; | |
2922 | } | |
2923 | mutex_unlock(&dapm->card->dapm_mutex); | |
2924 | ||
e066ea22 | 2925 | return 0; |
efcc3c61 MB |
2926 | } |
2927 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2928 | ||
bf3a9e13 MB |
2929 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2930 | const struct snd_soc_dapm_route *route) | |
2931 | { | |
2932 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2933 | route->source, | |
2934 | true); | |
2935 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2936 | route->sink, | |
2937 | true); | |
2938 | struct snd_soc_dapm_path *path; | |
2939 | int count = 0; | |
2940 | ||
2941 | if (!source) { | |
30a6a1a4 | 2942 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2943 | route->source); |
2944 | return -ENODEV; | |
2945 | } | |
2946 | ||
2947 | if (!sink) { | |
30a6a1a4 | 2948 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2949 | route->sink); |
2950 | return -ENODEV; | |
2951 | } | |
2952 | ||
2953 | if (route->control || route->connected) | |
30a6a1a4 | 2954 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2955 | route->source, route->sink); |
2956 | ||
e63bfd45 | 2957 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
2958 | if (path->sink == sink) { |
2959 | path->weak = 1; | |
2960 | count++; | |
2961 | } | |
2962 | } | |
2963 | ||
2964 | if (count == 0) | |
30a6a1a4 | 2965 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2966 | route->source, route->sink); |
2967 | if (count > 1) | |
30a6a1a4 | 2968 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2969 | count, route->source, route->sink); |
2970 | ||
2971 | return 0; | |
2972 | } | |
2973 | ||
2974 | /** | |
2975 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2976 | * @dapm: DAPM context | |
2977 | * @route: audio routes | |
2978 | * @num: number of routes | |
2979 | * | |
2980 | * Mark existing routes matching those specified in the passed array | |
2981 | * as being weak, meaning that they are ignored for the purpose of | |
2982 | * power decisions. The main intended use case is for sidetone paths | |
2983 | * which couple audio between other independent paths if they are both | |
2984 | * active in order to make the combination work better at the user | |
2985 | * level but which aren't intended to be "used". | |
2986 | * | |
2987 | * Note that CODEC drivers should not use this as sidetone type paths | |
2988 | * can frequently also be used as bypass paths. | |
2989 | */ | |
2990 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2991 | const struct snd_soc_dapm_route *route, int num) | |
2992 | { | |
2993 | int i, err; | |
2994 | int ret = 0; | |
2995 | ||
a73fb2df | 2996 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2997 | for (i = 0; i < num; i++) { |
2998 | err = snd_soc_dapm_weak_route(dapm, route); | |
2999 | if (err) | |
3000 | ret = err; | |
3001 | route++; | |
3002 | } | |
a73fb2df | 3003 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
3004 | |
3005 | return ret; | |
3006 | } | |
3007 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
3008 | ||
2b97eabc RP |
3009 | /** |
3010 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 3011 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
3012 | * |
3013 | * Checks the codec for any new dapm widgets and creates them if found. | |
3014 | * | |
3015 | * Returns 0 for success. | |
3016 | */ | |
824ef826 | 3017 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
3018 | { |
3019 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 3020 | unsigned int val; |
2b97eabc | 3021 | |
95dd5cd6 | 3022 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 3023 | |
95dd5cd6 | 3024 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
3025 | { |
3026 | if (w->new) | |
3027 | continue; | |
3028 | ||
fad59888 SW |
3029 | if (w->num_kcontrols) { |
3030 | w->kcontrols = kzalloc(w->num_kcontrols * | |
3031 | sizeof(struct snd_kcontrol *), | |
3032 | GFP_KERNEL); | |
a73fb2df | 3033 | if (!w->kcontrols) { |
95dd5cd6 | 3034 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 3035 | return -ENOMEM; |
a73fb2df | 3036 | } |
fad59888 SW |
3037 | } |
3038 | ||
2b97eabc RP |
3039 | switch(w->id) { |
3040 | case snd_soc_dapm_switch: | |
3041 | case snd_soc_dapm_mixer: | |
ca9c1aae | 3042 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 3043 | dapm_new_mixer(w); |
2b97eabc RP |
3044 | break; |
3045 | case snd_soc_dapm_mux: | |
d714f97c | 3046 | case snd_soc_dapm_demux: |
4b80b8c2 | 3047 | dapm_new_mux(w); |
2b97eabc | 3048 | break; |
2b97eabc | 3049 | case snd_soc_dapm_pga: |
d88429a6 | 3050 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 3051 | dapm_new_pga(w); |
2b97eabc | 3052 | break; |
c6615082 NO |
3053 | case snd_soc_dapm_dai_link: |
3054 | dapm_new_dai_link(w); | |
3055 | break; | |
7ca3a18b | 3056 | default: |
2b97eabc RP |
3057 | break; |
3058 | } | |
b66a70d5 MB |
3059 | |
3060 | /* Read the initial power state from the device */ | |
3061 | if (w->reg >= 0) { | |
ce0fc93a | 3062 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 3063 | val = val >> w->shift; |
de9ba98b LPC |
3064 | val &= w->mask; |
3065 | if (val == w->on_val) | |
b66a70d5 MB |
3066 | w->power = 1; |
3067 | } | |
3068 | ||
2b97eabc | 3069 | w->new = 1; |
d5d1e0be | 3070 | |
7508b12a | 3071 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 3072 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
3073 | } |
3074 | ||
95dd5cd6 LPC |
3075 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
3076 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
3077 | return 0; |
3078 | } | |
3079 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
3080 | ||
3081 | /** | |
3082 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
3083 | * @kcontrol: mixer control | |
ac11a2b3 | 3084 | * @ucontrol: control element information |
2b97eabc RP |
3085 | * |
3086 | * Callback to get the value of a dapm mixer control. | |
3087 | * | |
3088 | * Returns 0 for success. | |
3089 | */ | |
3090 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3091 | struct snd_ctl_elem_value *ucontrol) | |
3092 | { | |
ce0fc93a LPC |
3093 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3094 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3095 | struct soc_mixer_control *mc = |
3096 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3097 | int reg = mc->reg; |
815ecf8d | 3098 | unsigned int shift = mc->shift; |
4eaa9819 | 3099 | int max = mc->max; |
e7aa450f | 3100 | unsigned int width = fls(max); |
815ecf8d | 3101 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3102 | unsigned int invert = mc->invert; |
e7aa450f | 3103 | unsigned int reg_val, val, rval = 0; |
ce0fc93a | 3104 | int ret = 0; |
da602ab8 | 3105 | |
57295073 | 3106 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a | 3107 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
e7aa450f CYT |
3108 | ret = soc_dapm_read(dapm, reg, ®_val); |
3109 | val = (reg_val >> shift) & mask; | |
3110 | ||
3111 | if (ret == 0 && reg != mc->rreg) | |
3112 | ret = soc_dapm_read(dapm, mc->rreg, ®_val); | |
3113 | ||
3114 | if (snd_soc_volsw_is_stereo(mc)) | |
3115 | rval = (reg_val >> mc->rshift) & mask; | |
ce0fc93a | 3116 | } else { |
e7aa450f CYT |
3117 | reg_val = dapm_kcontrol_get_value(kcontrol); |
3118 | val = reg_val & mask; | |
3119 | ||
3120 | if (snd_soc_volsw_is_stereo(mc)) | |
3121 | rval = (reg_val >> width) & mask; | |
ce0fc93a | 3122 | } |
57295073 LPC |
3123 | mutex_unlock(&card->dapm_mutex); |
3124 | ||
01ad5e7d CYT |
3125 | if (ret) |
3126 | return ret; | |
3127 | ||
da602ab8 | 3128 | if (invert) |
57295073 LPC |
3129 | ucontrol->value.integer.value[0] = max - val; |
3130 | else | |
3131 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3132 | |
e7aa450f CYT |
3133 | if (snd_soc_volsw_is_stereo(mc)) { |
3134 | if (invert) | |
3135 | ucontrol->value.integer.value[1] = max - rval; | |
3136 | else | |
3137 | ucontrol->value.integer.value[1] = rval; | |
3138 | } | |
3139 | ||
ce0fc93a | 3140 | return ret; |
2b97eabc RP |
3141 | } |
3142 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3143 | ||
3144 | /** | |
3145 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3146 | * @kcontrol: mixer control | |
ac11a2b3 | 3147 | * @ucontrol: control element information |
2b97eabc RP |
3148 | * |
3149 | * Callback to set the value of a dapm mixer control. | |
3150 | * | |
3151 | * Returns 0 for success. | |
3152 | */ | |
3153 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3154 | struct snd_ctl_elem_value *ucontrol) | |
3155 | { | |
ce0fc93a LPC |
3156 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3157 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3158 | struct soc_mixer_control *mc = |
3159 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3160 | int reg = mc->reg; |
815ecf8d | 3161 | unsigned int shift = mc->shift; |
4eaa9819 | 3162 | int max = mc->max; |
e7aa450f CYT |
3163 | unsigned int width = fls(max); |
3164 | unsigned int mask = (1 << width) - 1; | |
815ecf8d | 3165 | unsigned int invert = mc->invert; |
e7aa450f CYT |
3166 | unsigned int val, rval = 0; |
3167 | int connect, rconnect = -1, change, reg_change = 0; | |
e411b0b5 | 3168 | struct snd_soc_dapm_update update = { NULL }; |
52765976 | 3169 | int ret = 0; |
2b97eabc RP |
3170 | |
3171 | val = (ucontrol->value.integer.value[0] & mask); | |
8a720718 | 3172 | connect = !!val; |
2b97eabc RP |
3173 | |
3174 | if (invert) | |
a7a4ac86 | 3175 | val = max - val; |
2b97eabc | 3176 | |
e7aa450f CYT |
3177 | if (snd_soc_volsw_is_stereo(mc)) { |
3178 | rval = (ucontrol->value.integer.value[1] & mask); | |
3179 | rconnect = !!rval; | |
3180 | if (invert) | |
3181 | rval = max - rval; | |
3182 | } | |
3183 | ||
3cd04343 | 3184 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3185 | |
e7aa450f CYT |
3186 | /* This assumes field width < (bits in unsigned int / 2) */ |
3187 | if (width > sizeof(unsigned int) * 8 / 2) | |
3188 | dev_warn(dapm->dev, | |
3189 | "ASoC: control %s field width limit exceeded\n", | |
3190 | kcontrol->id.name); | |
3191 | change = dapm_kcontrol_set_value(kcontrol, val | (rval << width)); | |
97404f2e | 3192 | |
18626c7e | 3193 | if (reg != SND_SOC_NOPM) { |
18626c7e | 3194 | val = val << shift; |
e7aa450f CYT |
3195 | rval = rval << mc->rshift; |
3196 | ||
3197 | reg_change = soc_dapm_test_bits(dapm, reg, mask << shift, val); | |
18626c7e | 3198 | |
e7aa450f CYT |
3199 | if (snd_soc_volsw_is_stereo(mc)) |
3200 | reg_change |= soc_dapm_test_bits(dapm, mc->rreg, | |
3201 | mask << mc->rshift, | |
3202 | rval); | |
18626c7e JN |
3203 | } |
3204 | ||
3205 | if (change || reg_change) { | |
3206 | if (reg_change) { | |
e7aa450f CYT |
3207 | if (snd_soc_volsw_is_stereo(mc)) { |
3208 | update.has_second_set = true; | |
3209 | update.reg2 = mc->rreg; | |
3210 | update.mask2 = mask << mc->rshift; | |
3211 | update.val2 = rval; | |
3212 | } | |
18626c7e JN |
3213 | update.kcontrol = kcontrol; |
3214 | update.reg = reg; | |
e7aa450f | 3215 | update.mask = mask << shift; |
18626c7e JN |
3216 | update.val = val; |
3217 | card->update = &update; | |
249ce138 | 3218 | } |
18626c7e | 3219 | change |= reg_change; |
97404f2e | 3220 | |
e7aa450f CYT |
3221 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, |
3222 | rconnect); | |
fafd2176 | 3223 | |
564c6504 | 3224 | card->update = NULL; |
283375ce MB |
3225 | } |
3226 | ||
a73fb2df | 3227 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3228 | |
3229 | if (ret > 0) | |
3230 | soc_dpcm_runtime_update(card); | |
3231 | ||
56a67834 | 3232 | return change; |
2b97eabc RP |
3233 | } |
3234 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3235 | ||
3236 | /** | |
3237 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3238 | * @kcontrol: mixer control | |
ac11a2b3 | 3239 | * @ucontrol: control element information |
2b97eabc RP |
3240 | * |
3241 | * Callback to get the value of a dapm enumerated double mixer control. | |
3242 | * | |
3243 | * Returns 0 for success. | |
3244 | */ | |
3245 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3246 | struct snd_ctl_elem_value *ucontrol) | |
3247 | { | |
ce0fc93a | 3248 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3249 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3250 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3251 | unsigned int reg_val, val; |
52765976 | 3252 | |
561ed680 CK |
3253 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3254 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3255 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3256 | if (ret) { |
3257 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3258 | return ret; |
964a0b89 | 3259 | } |
69128316 | 3260 | } else { |
236aaa68 | 3261 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3262 | } |
561ed680 | 3263 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3264 | |
2e72f8e3 | 3265 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3266 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3267 | if (e->shift_l != e->shift_r) { |
3268 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3269 | val = snd_soc_enum_val_to_item(e, val); |
3270 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3271 | } |
3272 | ||
69128316 | 3273 | return 0; |
2e72f8e3 | 3274 | } |
2b97eabc | 3275 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3276 | |
3277 | /** | |
2b97eabc | 3278 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3279 | * @kcontrol: mixer control |
3280 | * @ucontrol: control element information | |
3281 | * | |
2b97eabc | 3282 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3283 | * |
3284 | * Returns 0 for success. | |
3285 | */ | |
2b97eabc | 3286 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3287 | struct snd_ctl_elem_value *ucontrol) |
3288 | { | |
ce0fc93a LPC |
3289 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3290 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3291 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3292 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3293 | unsigned int val, change, reg_change = 0; |
46f5822f | 3294 | unsigned int mask; |
e411b0b5 | 3295 | struct snd_soc_dapm_update update = { NULL }; |
52765976 | 3296 | int ret = 0; |
2e72f8e3 | 3297 | |
3727b496 | 3298 | if (item[0] >= e->items) |
2e72f8e3 | 3299 | return -EINVAL; |
3727b496 LPC |
3300 | |
3301 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3302 | mask = e->mask << e->shift_l; |
3303 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3304 | if (item[1] > e->items) |
2e72f8e3 | 3305 | return -EINVAL; |
071133a2 | 3306 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; |
2e72f8e3 PU |
3307 | mask |= e->mask << e->shift_r; |
3308 | } | |
3309 | ||
3cd04343 | 3310 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3311 | |
561ed680 CK |
3312 | change = dapm_kcontrol_set_value(kcontrol, val); |
3313 | ||
236aaa68 | 3314 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3315 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3316 | |
561ed680 CK |
3317 | if (change || reg_change) { |
3318 | if (reg_change) { | |
236aaa68 LPC |
3319 | update.kcontrol = kcontrol; |
3320 | update.reg = e->reg; | |
3321 | update.mask = mask; | |
3322 | update.val = val; | |
3323 | card->update = &update; | |
3324 | } | |
561ed680 | 3325 | change |= reg_change; |
1642e3d4 | 3326 | |
3727b496 | 3327 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3328 | |
564c6504 | 3329 | card->update = NULL; |
fafd2176 | 3330 | } |
2e72f8e3 | 3331 | |
a73fb2df | 3332 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3333 | |
3334 | if (ret > 0) | |
3335 | soc_dpcm_runtime_update(card); | |
3336 | ||
97404f2e | 3337 | return change; |
2e72f8e3 | 3338 | } |
2b97eabc | 3339 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3340 | |
8b37dbd2 MB |
3341 | /** |
3342 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3343 | * | |
3344 | * @kcontrol: mixer control | |
3345 | * @uinfo: control element information | |
3346 | * | |
3347 | * Callback to provide information about a pin switch control. | |
3348 | */ | |
3349 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3350 | struct snd_ctl_elem_info *uinfo) | |
3351 | { | |
3352 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3353 | uinfo->count = 1; | |
3354 | uinfo->value.integer.min = 0; | |
3355 | uinfo->value.integer.max = 1; | |
3356 | ||
3357 | return 0; | |
3358 | } | |
3359 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3360 | ||
3361 | /** | |
3362 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3363 | * | |
3364 | * @kcontrol: mixer control | |
3365 | * @ucontrol: Value | |
3366 | */ | |
3367 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3368 | struct snd_ctl_elem_value *ucontrol) | |
3369 | { | |
48a8c394 | 3370 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3371 | const char *pin = (const char *)kcontrol->private_value; |
3372 | ||
3cd04343 | 3373 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3374 | |
3375 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3376 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3377 | |
a73fb2df | 3378 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3379 | |
3380 | return 0; | |
3381 | } | |
3382 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3383 | ||
3384 | /** | |
3385 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3386 | * | |
3387 | * @kcontrol: mixer control | |
3388 | * @ucontrol: Value | |
3389 | */ | |
3390 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3391 | struct snd_ctl_elem_value *ucontrol) | |
3392 | { | |
48a8c394 | 3393 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3394 | const char *pin = (const char *)kcontrol->private_value; |
3395 | ||
8b37dbd2 | 3396 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3397 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3398 | else |
48a8c394 | 3399 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3400 | |
a73fb2df | 3401 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3402 | return 0; |
3403 | } | |
3404 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3405 | ||
cc76e7de | 3406 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3407 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3408 | const struct snd_soc_dapm_widget *widget) |
3409 | { | |
3410 | struct snd_soc_dapm_widget *w; | |
3411 | ||
3412 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3413 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
37e1df8c LW |
3414 | /* Do not nag about probe deferrals */ |
3415 | if (IS_ERR(w)) { | |
3416 | int ret = PTR_ERR(w); | |
3417 | ||
3418 | if (ret != -EPROBE_DEFER) | |
3419 | dev_err(dapm->dev, | |
3420 | "ASoC: Failed to create DAPM control %s (%d)\n", | |
3421 | widget->name, ret); | |
3422 | goto out_unlock; | |
3423 | } | |
02aa78ab LG |
3424 | if (!w) |
3425 | dev_err(dapm->dev, | |
3426 | "ASoC: Failed to create DAPM control %s\n", | |
3427 | widget->name); | |
3428 | ||
37e1df8c | 3429 | out_unlock: |
02aa78ab LG |
3430 | mutex_unlock(&dapm->card->dapm_mutex); |
3431 | return w; | |
3432 | } | |
a5d5639f | 3433 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); |
02aa78ab LG |
3434 | |
3435 | struct snd_soc_dapm_widget * | |
3436 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3437 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3438 | { |
a3423b02 | 3439 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3440 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3441 | const char *prefix; |
62ea874a | 3442 | int ret; |
2b97eabc RP |
3443 | |
3444 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3445 | return NULL; |
2b97eabc | 3446 | |
62ea874a MB |
3447 | switch (w->id) { |
3448 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3449 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3450 | if (IS_ERR(w->regulator)) { | |
3451 | ret = PTR_ERR(w->regulator); | |
37e1df8c LW |
3452 | if (ret == -EPROBE_DEFER) |
3453 | return ERR_PTR(ret); | |
30a6a1a4 | 3454 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3455 | w->name, ret); |
5ba06fc9 | 3456 | return NULL; |
62ea874a | 3457 | } |
8784c77a | 3458 | |
de9ba98b | 3459 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3460 | ret = regulator_allow_bypass(w->regulator, true); |
3461 | if (ret != 0) | |
3462 | dev_warn(w->dapm->dev, | |
30686c35 | 3463 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3464 | w->name, ret); |
3465 | } | |
62ea874a | 3466 | break; |
d7e7eb91 | 3467 | case snd_soc_dapm_clock_supply: |
165961ef | 3468 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3469 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3470 | if (IS_ERR(w->clk)) { |
3471 | ret = PTR_ERR(w->clk); | |
37e1df8c LW |
3472 | if (ret == -EPROBE_DEFER) |
3473 | return ERR_PTR(ret); | |
30a6a1a4 | 3474 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3475 | w->name, ret); |
3476 | return NULL; | |
3477 | } | |
ec02995a MB |
3478 | #else |
3479 | return NULL; | |
3480 | #endif | |
d7e7eb91 | 3481 | break; |
62ea874a MB |
3482 | default: |
3483 | break; | |
3484 | } | |
2b97eabc | 3485 | |
94f99c87 | 3486 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3487 | if (prefix) |
94f99c87 | 3488 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3489 | else |
48068961 | 3490 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3491 | if (w->name == NULL) { |
3492 | kfree(w); | |
5ba06fc9 | 3493 | return NULL; |
ead9b919 | 3494 | } |
ead9b919 | 3495 | |
7ca3a18b | 3496 | switch (w->id) { |
6dd98b0a | 3497 | case snd_soc_dapm_mic: |
a3423b02 | 3498 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3499 | w->power_check = dapm_generic_check_power; |
3500 | break; | |
86d75003 LPC |
3501 | case snd_soc_dapm_input: |
3502 | if (!dapm->card->fully_routed) | |
a3423b02 | 3503 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3504 | w->power_check = dapm_generic_check_power; |
3505 | break; | |
6dd98b0a LPC |
3506 | case snd_soc_dapm_spk: |
3507 | case snd_soc_dapm_hp: | |
a3423b02 | 3508 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3509 | w->power_check = dapm_generic_check_power; |
3510 | break; | |
86d75003 LPC |
3511 | case snd_soc_dapm_output: |
3512 | if (!dapm->card->fully_routed) | |
a3423b02 | 3513 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3514 | w->power_check = dapm_generic_check_power; |
3515 | break; | |
6dd98b0a LPC |
3516 | case snd_soc_dapm_vmid: |
3517 | case snd_soc_dapm_siggen: | |
a3423b02 | 3518 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3519 | w->power_check = dapm_always_on_check_power; |
3520 | break; | |
56b4437f VK |
3521 | case snd_soc_dapm_sink: |
3522 | w->is_ep = SND_SOC_DAPM_EP_SINK; | |
3523 | w->power_check = dapm_always_on_check_power; | |
3524 | break; | |
3525 | ||
6dd98b0a | 3526 | case snd_soc_dapm_mux: |
d714f97c | 3527 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3528 | case snd_soc_dapm_switch: |
3529 | case snd_soc_dapm_mixer: | |
3530 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3531 | case snd_soc_dapm_adc: |
3532 | case snd_soc_dapm_aif_out: | |
3533 | case snd_soc_dapm_dac: | |
3534 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3535 | case snd_soc_dapm_pga: |
3536 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3537 | case snd_soc_dapm_micbias: |
7ca3a18b | 3538 | case snd_soc_dapm_line: |
c74184ed | 3539 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3540 | case snd_soc_dapm_dai_out: |
3541 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3542 | w->power_check = dapm_generic_check_power; |
3543 | break; | |
3544 | case snd_soc_dapm_supply: | |
62ea874a | 3545 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3546 | case snd_soc_dapm_clock_supply: |
57295073 | 3547 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3548 | w->is_supply = 1; |
7ca3a18b MB |
3549 | w->power_check = dapm_supply_check_power; |
3550 | break; | |
3551 | default: | |
3552 | w->power_check = dapm_always_on_check_power; | |
3553 | break; | |
3554 | } | |
3555 | ||
ce6120cc | 3556 | w->dapm = dapm; |
2b97eabc | 3557 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3558 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3559 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3560 | |
a3423b02 LPC |
3561 | snd_soc_dapm_for_each_direction(dir) { |
3562 | INIT_LIST_HEAD(&w->edges[dir]); | |
3563 | w->endpoints[dir] = -1; | |
3564 | } | |
92a99ea4 | 3565 | |
c8046000 | 3566 | /* machine layer sets up unconnected pins and insertions */ |
2b97eabc | 3567 | w->connected = 1; |
5ba06fc9 | 3568 | return w; |
2b97eabc | 3569 | } |
2b97eabc | 3570 | |
4ba1327a MB |
3571 | /** |
3572 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3573 | * @dapm: DAPM context |
4ba1327a MB |
3574 | * @widget: widget array |
3575 | * @num: number of widgets | |
3576 | * | |
3577 | * Creates new DAPM controls based upon the templates. | |
3578 | * | |
3579 | * Returns 0 for success else error. | |
3580 | */ | |
ce6120cc | 3581 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3582 | const struct snd_soc_dapm_widget *widget, |
3583 | int num) | |
3584 | { | |
5ba06fc9 MB |
3585 | struct snd_soc_dapm_widget *w; |
3586 | int i; | |
60884c27 | 3587 | int ret = 0; |
4ba1327a | 3588 | |
a73fb2df | 3589 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3590 | for (i = 0; i < num; i++) { |
02aa78ab | 3591 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
37e1df8c LW |
3592 | if (IS_ERR(w)) { |
3593 | ret = PTR_ERR(w); | |
3594 | /* Do not nag about probe deferrals */ | |
3595 | if (ret == -EPROBE_DEFER) | |
3596 | break; | |
3597 | dev_err(dapm->dev, | |
3598 | "ASoC: Failed to create DAPM control %s (%d)\n", | |
3599 | widget->name, ret); | |
3600 | break; | |
3601 | } | |
5ba06fc9 | 3602 | if (!w) { |
f7d41ae8 | 3603 | dev_err(dapm->dev, |
5ba06fc9 MB |
3604 | "ASoC: Failed to create DAPM control %s\n", |
3605 | widget->name); | |
60884c27 DC |
3606 | ret = -ENOMEM; |
3607 | break; | |
b8b33cb5 | 3608 | } |
4ba1327a MB |
3609 | widget++; |
3610 | } | |
a73fb2df | 3611 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3612 | return ret; |
4ba1327a MB |
3613 | } |
3614 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3615 | ||
c74184ed MB |
3616 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3617 | struct snd_kcontrol *kcontrol, int event) | |
3618 | { | |
3619 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3620 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3621 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3622 | struct snd_pcm_substream substream; |
9747cec2 | 3623 | struct snd_pcm_hw_params *params = NULL; |
8053f216 | 3624 | struct snd_pcm_runtime *runtime = NULL; |
c74184ed MB |
3625 | u64 fmt; |
3626 | int ret; | |
3627 | ||
bf4edea8 | 3628 | if (WARN_ON(!config) || |
a3423b02 LPC |
3629 | WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || |
3630 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
bf4edea8 | 3631 | return -EINVAL; |
c74184ed MB |
3632 | |
3633 | /* We only support a single source and sink, pick the first */ | |
a3423b02 LPC |
3634 | source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], |
3635 | struct snd_soc_dapm_path, | |
3636 | list_node[SND_SOC_DAPM_DIR_OUT]); | |
3637 | sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], | |
3638 | struct snd_soc_dapm_path, | |
3639 | list_node[SND_SOC_DAPM_DIR_IN]); | |
c74184ed MB |
3640 | |
3641 | source = source_p->source->priv; | |
3642 | sink = sink_p->sink->priv; | |
3643 | ||
3644 | /* Be a little careful as we don't want to overflow the mask array */ | |
3645 | if (config->formats) { | |
3646 | fmt = ffs(config->formats) - 1; | |
3647 | } else { | |
30a6a1a4 | 3648 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3649 | config->formats); |
3650 | fmt = 0; | |
3651 | } | |
3652 | ||
3653 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3654 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3655 | if (!params) { | |
3656 | ret = -ENOMEM; | |
3657 | goto out; | |
3658 | } | |
3659 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3660 | |
9747cec2 | 3661 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3662 | config->rate_min; |
9747cec2 | 3663 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3664 | config->rate_max; |
3665 | ||
9747cec2 | 3666 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3667 | = config->channels_min; |
9747cec2 | 3668 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3669 | = config->channels_max; |
3670 | ||
3671 | memset(&substream, 0, sizeof(substream)); | |
3672 | ||
8053f216 NC |
3673 | /* Allocate a dummy snd_pcm_runtime for startup() and other ops() */ |
3674 | runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); | |
3675 | if (!runtime) { | |
3676 | ret = -ENOMEM; | |
3677 | goto out; | |
3678 | } | |
3679 | substream.runtime = runtime; | |
3680 | ||
c74184ed MB |
3681 | switch (event) { |
3682 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a | 3683 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
9b8ef9f6 JK |
3684 | if (source->driver->ops && source->driver->ops->startup) { |
3685 | ret = source->driver->ops->startup(&substream, source); | |
3686 | if (ret < 0) { | |
3687 | dev_err(source->dev, | |
3688 | "ASoC: startup() failed: %d\n", ret); | |
3689 | goto out; | |
3690 | } | |
3691 | source->active++; | |
3692 | } | |
93e6958a BC |
3693 | ret = soc_dai_hw_params(&substream, params, source); |
3694 | if (ret < 0) | |
3695 | goto out; | |
c74184ed | 3696 | |
93e6958a | 3697 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
9b8ef9f6 JK |
3698 | if (sink->driver->ops && sink->driver->ops->startup) { |
3699 | ret = sink->driver->ops->startup(&substream, sink); | |
3700 | if (ret < 0) { | |
3701 | dev_err(sink->dev, | |
3702 | "ASoC: startup() failed: %d\n", ret); | |
3703 | goto out; | |
3704 | } | |
3705 | sink->active++; | |
3706 | } | |
93e6958a BC |
3707 | ret = soc_dai_hw_params(&substream, params, sink); |
3708 | if (ret < 0) | |
3709 | goto out; | |
c74184ed MB |
3710 | break; |
3711 | ||
3712 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3713 | ret = snd_soc_dai_digital_mute(sink, 0, |
3714 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3715 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3716 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3717 | ret = 0; |
c74184ed MB |
3718 | break; |
3719 | ||
3720 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3721 | ret = snd_soc_dai_digital_mute(sink, 1, |
3722 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3723 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3724 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3725 | ret = 0; |
9b8ef9f6 JK |
3726 | |
3727 | source->active--; | |
3728 | if (source->driver->ops && source->driver->ops->shutdown) { | |
3729 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3730 | source->driver->ops->shutdown(&substream, source); | |
3731 | } | |
3732 | ||
3733 | sink->active--; | |
3734 | if (sink->driver->ops && sink->driver->ops->shutdown) { | |
3735 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3736 | sink->driver->ops->shutdown(&substream, sink); | |
3737 | } | |
c74184ed MB |
3738 | break; |
3739 | ||
3740 | default: | |
a6ed0608 | 3741 | WARN(1, "Unknown event %d\n", event); |
75881df3 | 3742 | ret = -EINVAL; |
c74184ed MB |
3743 | } |
3744 | ||
9747cec2 | 3745 | out: |
8053f216 | 3746 | kfree(runtime); |
9747cec2 MB |
3747 | kfree(params); |
3748 | return ret; | |
c74184ed MB |
3749 | } |
3750 | ||
c6615082 NO |
3751 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3752 | struct snd_ctl_elem_value *ucontrol) | |
3753 | { | |
3754 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3755 | ||
741338f9 | 3756 | ucontrol->value.enumerated.item[0] = w->params_select; |
c6615082 NO |
3757 | |
3758 | return 0; | |
3759 | } | |
3760 | ||
3761 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3762 | struct snd_ctl_elem_value *ucontrol) | |
3763 | { | |
3764 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3765 | ||
3766 | /* Can't change the config when widget is already powered */ | |
3767 | if (w->power) | |
3768 | return -EBUSY; | |
3769 | ||
741338f9 | 3770 | if (ucontrol->value.enumerated.item[0] == w->params_select) |
c6615082 NO |
3771 | return 0; |
3772 | ||
741338f9 | 3773 | if (ucontrol->value.enumerated.item[0] >= w->num_params) |
c6615082 NO |
3774 | return -EINVAL; |
3775 | ||
741338f9 | 3776 | w->params_select = ucontrol->value.enumerated.item[0]; |
c6615082 NO |
3777 | |
3778 | return 0; | |
3779 | } | |
3780 | ||
c74184ed MB |
3781 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3782 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3783 | unsigned int num_params, |
c74184ed MB |
3784 | struct snd_soc_dapm_widget *source, |
3785 | struct snd_soc_dapm_widget *sink) | |
3786 | { | |
c74184ed MB |
3787 | struct snd_soc_dapm_widget template; |
3788 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3789 | char *link_name; |
c6615082 NO |
3790 | int ret, count; |
3791 | unsigned long private_value; | |
3792 | const char **w_param_text; | |
3793 | struct soc_enum w_param_enum[] = { | |
3794 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3795 | }; | |
3796 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3797 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3798 | snd_soc_dapm_dai_link_get, | |
3799 | snd_soc_dapm_dai_link_put), | |
3800 | }; | |
3801 | const struct snd_soc_pcm_stream *config = params; | |
3802 | ||
3803 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3804 | sizeof(char *), GFP_KERNEL); | |
3805 | if (!w_param_text) | |
c74184ed | 3806 | return -ENOMEM; |
c74184ed | 3807 | |
46172b6c CK |
3808 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3809 | source->name, sink->name); | |
c6615082 NO |
3810 | if (!link_name) { |
3811 | ret = -ENOMEM; | |
3812 | goto outfree_w_param; | |
3813 | } | |
c74184ed | 3814 | |
c6615082 NO |
3815 | for (count = 0 ; count < num_params; count++) { |
3816 | if (!config->stream_name) { | |
3817 | dev_warn(card->dapm.dev, | |
3818 | "ASoC: anonymous config %d for dai link %s\n", | |
3819 | count, link_name); | |
c6615082 | 3820 | w_param_text[count] = |
46172b6c CK |
3821 | devm_kasprintf(card->dev, GFP_KERNEL, |
3822 | "Anonymous Configuration %d", | |
3823 | count); | |
c6615082 NO |
3824 | if (!w_param_text[count]) { |
3825 | ret = -ENOMEM; | |
3826 | goto outfree_link_name; | |
3827 | } | |
c6615082 NO |
3828 | } else { |
3829 | w_param_text[count] = devm_kmemdup(card->dev, | |
3830 | config->stream_name, | |
3831 | strlen(config->stream_name) + 1, | |
3832 | GFP_KERNEL); | |
3833 | if (!w_param_text[count]) { | |
3834 | ret = -ENOMEM; | |
3835 | goto outfree_link_name; | |
3836 | } | |
3837 | } | |
3838 | config++; | |
3839 | } | |
3840 | w_param_enum[0].items = num_params; | |
3841 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3842 | |
3843 | memset(&template, 0, sizeof(template)); | |
3844 | template.reg = SND_SOC_NOPM; | |
3845 | template.id = snd_soc_dapm_dai_link; | |
3846 | template.name = link_name; | |
3847 | template.event = snd_soc_dai_link_event; | |
3848 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3849 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3850 | template.num_kcontrols = 1; |
3851 | /* duplicate w_param_enum on heap so that memory persists */ | |
3852 | private_value = | |
3853 | (unsigned long) devm_kmemdup(card->dev, | |
3854 | (void *)(kcontrol_dai_link[0].private_value), | |
3855 | sizeof(struct soc_enum), GFP_KERNEL); | |
3856 | if (!private_value) { | |
3857 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3858 | link_name); | |
3859 | ret = -ENOMEM; | |
3860 | goto outfree_link_name; | |
3861 | } | |
3862 | kcontrol_dai_link[0].private_value = private_value; | |
3863 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3864 | template.kcontrol_news = | |
3865 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3866 | sizeof(struct snd_kcontrol_new), | |
3867 | GFP_KERNEL); | |
3868 | if (!template.kcontrol_news) { | |
3869 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3870 | link_name); | |
3871 | ret = -ENOMEM; | |
3872 | goto outfree_private_value; | |
3873 | } | |
c74184ed | 3874 | |
30a6a1a4 | 3875 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3876 | |
02aa78ab | 3877 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
37e1df8c LW |
3878 | if (IS_ERR(w)) { |
3879 | ret = PTR_ERR(w); | |
3880 | /* Do not nag about probe deferrals */ | |
3881 | if (ret != -EPROBE_DEFER) | |
3882 | dev_err(card->dev, | |
3883 | "ASoC: Failed to create %s widget (%d)\n", | |
3884 | link_name, ret); | |
3885 | goto outfree_kcontrol_news; | |
3886 | } | |
c74184ed | 3887 | if (!w) { |
30a6a1a4 | 3888 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3889 | link_name); |
c6615082 NO |
3890 | ret = -ENOMEM; |
3891 | goto outfree_kcontrol_news; | |
c74184ed MB |
3892 | } |
3893 | ||
3894 | w->params = params; | |
c6615082 | 3895 | w->num_params = num_params; |
c74184ed | 3896 | |
fe83897f LPC |
3897 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3898 | if (ret) | |
c6615082 | 3899 | goto outfree_w; |
fe83897f | 3900 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3901 | |
3902 | outfree_w: | |
3903 | devm_kfree(card->dev, w); | |
3904 | outfree_kcontrol_news: | |
3905 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3906 | outfree_private_value: | |
3907 | devm_kfree(card->dev, (void *)private_value); | |
3908 | outfree_link_name: | |
3909 | devm_kfree(card->dev, link_name); | |
3910 | outfree_w_param: | |
3911 | for (count = 0 ; count < num_params; count++) | |
3912 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3913 | devm_kfree(card->dev, w_param_text); | |
3914 | ||
3915 | return ret; | |
c74184ed MB |
3916 | } |
3917 | ||
888df395 MB |
3918 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3919 | struct snd_soc_dai *dai) | |
2b97eabc | 3920 | { |
888df395 | 3921 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3922 | struct snd_soc_dapm_widget *w; |
3923 | ||
888df395 MB |
3924 | WARN_ON(dapm->dev != dai->dev); |
3925 | ||
3926 | memset(&template, 0, sizeof(template)); | |
3927 | template.reg = SND_SOC_NOPM; | |
3928 | ||
3929 | if (dai->driver->playback.stream_name) { | |
4616274d | 3930 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3931 | template.name = dai->driver->playback.stream_name; |
3932 | template.sname = dai->driver->playback.stream_name; | |
3933 | ||
30a6a1a4 | 3934 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3935 | template.name); |
3936 | ||
02aa78ab | 3937 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
639467c8 LW |
3938 | if (IS_ERR(w)) { |
3939 | int ret = PTR_ERR(w); | |
3940 | ||
3941 | /* Do not nag about probe deferrals */ | |
3942 | if (ret != -EPROBE_DEFER) | |
3943 | dev_err(dapm->dev, | |
3944 | "ASoC: Failed to create %s widget (%d)\n", | |
3945 | dai->driver->playback.stream_name, ret); | |
3946 | return ret; | |
3947 | } | |
888df395 | 3948 | if (!w) { |
30a6a1a4 | 3949 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3950 | dai->driver->playback.stream_name); |
298402a3 | 3951 | return -ENOMEM; |
888df395 MB |
3952 | } |
3953 | ||
3954 | w->priv = dai; | |
3955 | dai->playback_widget = w; | |
3956 | } | |
3957 | ||
3958 | if (dai->driver->capture.stream_name) { | |
4616274d | 3959 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3960 | template.name = dai->driver->capture.stream_name; |
3961 | template.sname = dai->driver->capture.stream_name; | |
3962 | ||
30a6a1a4 | 3963 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3964 | template.name); |
3965 | ||
02aa78ab | 3966 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
639467c8 LW |
3967 | if (IS_ERR(w)) { |
3968 | int ret = PTR_ERR(w); | |
3969 | ||
3970 | /* Do not nag about probe deferrals */ | |
3971 | if (ret != -EPROBE_DEFER) | |
3972 | dev_err(dapm->dev, | |
3973 | "ASoC: Failed to create %s widget (%d)\n", | |
3974 | dai->driver->playback.stream_name, ret); | |
3975 | return ret; | |
3976 | } | |
888df395 | 3977 | if (!w) { |
30a6a1a4 | 3978 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3979 | dai->driver->capture.stream_name); |
298402a3 | 3980 | return -ENOMEM; |
888df395 MB |
3981 | } |
3982 | ||
3983 | w->priv = dai; | |
3984 | dai->capture_widget = w; | |
3985 | } | |
3986 | ||
3987 | return 0; | |
3988 | } | |
3989 | ||
3990 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3991 | { | |
3992 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3993 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3994 | struct snd_soc_dai *dai; |
888df395 MB |
3995 | |
3996 | /* For each DAI widget... */ | |
3997 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3998 | switch (dai_w->id) { |
3999 | case snd_soc_dapm_dai_in: | |
4000 | case snd_soc_dapm_dai_out: | |
4001 | break; | |
4002 | default: | |
2b97eabc | 4003 | continue; |
4616274d | 4004 | } |
888df395 MB |
4005 | |
4006 | dai = dai_w->priv; | |
4007 | ||
4008 | /* ...find all widgets with the same stream and link them */ | |
4009 | list_for_each_entry(w, &card->widgets, list) { | |
4010 | if (w->dapm != dai_w->dapm) | |
4011 | continue; | |
4012 | ||
4616274d MB |
4013 | switch (w->id) { |
4014 | case snd_soc_dapm_dai_in: | |
4015 | case snd_soc_dapm_dai_out: | |
888df395 | 4016 | continue; |
4616274d MB |
4017 | default: |
4018 | break; | |
4019 | } | |
888df395 | 4020 | |
a798c24a | 4021 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
4022 | continue; |
4023 | ||
0f9bd7b1 LPC |
4024 | if (dai_w->id == snd_soc_dapm_dai_in) { |
4025 | src = dai_w; | |
4026 | sink = w; | |
4027 | } else { | |
4028 | src = w; | |
4029 | sink = dai_w; | |
2b97eabc | 4030 | } |
0f9bd7b1 LPC |
4031 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
4032 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
4033 | } |
4034 | } | |
2b97eabc | 4035 | |
888df395 MB |
4036 | return 0; |
4037 | } | |
64a648c2 | 4038 | |
44ba2641 BC |
4039 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
4040 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 4041 | { |
44ba2641 | 4042 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 4043 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
4044 | int i; |
4045 | ||
44ba2641 BC |
4046 | for (i = 0; i < rtd->num_codecs; i++) { |
4047 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f | 4048 | |
b893ea5f LG |
4049 | /* connect BE DAI playback if widgets are valid */ |
4050 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
4051 | source = cpu_dai->playback_widget; |
4052 | sink = codec_dai->playback_widget; | |
b893ea5f | 4053 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
4054 | cpu_dai->component->name, source->name, |
4055 | codec_dai->component->name, sink->name); | |
b893ea5f | 4056 | |
9887c20b LPC |
4057 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
4058 | NULL, NULL); | |
b893ea5f LG |
4059 | } |
4060 | ||
4061 | /* connect BE DAI capture if widgets are valid */ | |
4062 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
4063 | source = codec_dai->capture_widget; |
4064 | sink = cpu_dai->capture_widget; | |
b893ea5f | 4065 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
4066 | codec_dai->component->name, source->name, |
4067 | cpu_dai->component->name, sink->name); | |
b893ea5f | 4068 | |
9887c20b LPC |
4069 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
4070 | NULL, NULL); | |
b893ea5f | 4071 | } |
b893ea5f LG |
4072 | } |
4073 | } | |
4074 | ||
c471fdd1 | 4075 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 4076 | int event) |
2b97eabc | 4077 | { |
c471fdd1 | 4078 | struct snd_soc_dapm_widget *w; |
a3423b02 | 4079 | unsigned int ep; |
7bd3a6f3 | 4080 | |
c471fdd1 LPC |
4081 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
4082 | w = dai->playback_widget; | |
4083 | else | |
4084 | w = dai->capture_widget; | |
fe360685 | 4085 | |
c471fdd1 LPC |
4086 | if (w) { |
4087 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 4088 | |
a3423b02 LPC |
4089 | if (w->id == snd_soc_dapm_dai_in) { |
4090 | ep = SND_SOC_DAPM_EP_SOURCE; | |
4091 | dapm_widget_invalidate_input_paths(w); | |
4092 | } else { | |
4093 | ep = SND_SOC_DAPM_EP_SINK; | |
4094 | dapm_widget_invalidate_output_paths(w); | |
4095 | } | |
4096 | ||
d9b0951b LG |
4097 | switch (event) { |
4098 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 4099 | w->active = 1; |
a3423b02 | 4100 | w->is_ep = ep; |
d9b0951b LG |
4101 | break; |
4102 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 4103 | w->active = 0; |
a3423b02 | 4104 | w->is_ep = 0; |
d9b0951b LG |
4105 | break; |
4106 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
4107 | case SND_SOC_DAPM_STREAM_RESUME: | |
4108 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
4109 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
4110 | break; | |
4111 | } | |
4112 | } | |
c471fdd1 | 4113 | } |
d9b0951b | 4114 | |
44ba2641 BC |
4115 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
4116 | { | |
1a497983 | 4117 | struct snd_soc_pcm_runtime *rtd; |
44ba2641 BC |
4118 | |
4119 | /* for each BE DAI link... */ | |
1a497983 | 4120 | list_for_each_entry(rtd, &card->rtd_list, list) { |
44ba2641 BC |
4121 | /* |
4122 | * dynamic FE links have no fixed DAI mapping. | |
4123 | * CODEC<->CODEC links have no direct connection. | |
4124 | */ | |
4125 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
4126 | continue; | |
4127 | ||
4128 | dapm_connect_dai_link_widgets(card, rtd); | |
4129 | } | |
4130 | } | |
4131 | ||
c471fdd1 LPC |
4132 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4133 | int event) | |
4134 | { | |
44ba2641 BC |
4135 | int i; |
4136 | ||
c471fdd1 | 4137 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
4138 | for (i = 0; i < rtd->num_codecs; i++) |
4139 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 4140 | |
95dd5cd6 | 4141 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
4142 | } |
4143 | ||
4144 | /** | |
4145 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
4146 | * @rtd: PCM runtime data | |
4147 | * @stream: stream name | |
4148 | * @event: stream event | |
4149 | * | |
4150 | * Sends a stream event to the dapm core. The core then makes any | |
4151 | * necessary widget power changes. | |
4152 | * | |
4153 | * Returns 0 for success else error. | |
4154 | */ | |
d9b0951b LG |
4155 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4156 | int event) | |
ce6120cc | 4157 | { |
a73fb2df | 4158 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 4159 | |
3cd04343 | 4160 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 4161 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 4162 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 4163 | } |
2b97eabc | 4164 | |
11391100 CK |
4165 | /** |
4166 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
4167 | * @dapm: DAPM context | |
4168 | * @pin: pin name | |
4169 | * | |
4170 | * Enables input/output pin and its parents or children widgets iff there is | |
4171 | * a valid audio route and active audio stream. | |
4172 | * | |
4173 | * Requires external locking. | |
4174 | * | |
4175 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4176 | * do any widget power switching. | |
4177 | */ | |
4178 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4179 | const char *pin) | |
4180 | { | |
4181 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
4182 | } | |
4183 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
4184 | ||
2b97eabc | 4185 | /** |
a5302181 | 4186 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 4187 | * @dapm: DAPM context |
a5302181 | 4188 | * @pin: pin name |
2b97eabc | 4189 | * |
74b8f955 | 4190 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 4191 | * a valid audio route and active audio stream. |
11391100 | 4192 | * |
a5302181 LG |
4193 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4194 | * do any widget power switching. | |
2b97eabc | 4195 | */ |
ce6120cc | 4196 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 4197 | { |
11391100 CK |
4198 | int ret; |
4199 | ||
4200 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4201 | ||
4202 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
4203 | ||
4204 | mutex_unlock(&dapm->card->dapm_mutex); | |
4205 | ||
4206 | return ret; | |
a5302181 LG |
4207 | } |
4208 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 4209 | |
da34183e | 4210 | /** |
11391100 | 4211 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4212 | * @dapm: DAPM context |
da34183e MB |
4213 | * @pin: pin name |
4214 | * | |
4215 | * Enables input/output pin regardless of any other state. This is | |
4216 | * intended for use with microphone bias supplies used in microphone | |
4217 | * jack detection. | |
4218 | * | |
11391100 CK |
4219 | * Requires external locking. |
4220 | * | |
da34183e MB |
4221 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4222 | * do any widget power switching. | |
4223 | */ | |
11391100 CK |
4224 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4225 | const char *pin) | |
da34183e | 4226 | { |
91a5fca4 | 4227 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4228 | |
91a5fca4 | 4229 | if (!w) { |
30a6a1a4 | 4230 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4231 | return -EINVAL; |
0d86733c MB |
4232 | } |
4233 | ||
30a6a1a4 | 4234 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4235 | if (!w->connected) { |
4236 | /* | |
4237 | * w->force does not affect the number of input or output paths, | |
4238 | * so we only have to recheck if w->connected is changed | |
4239 | */ | |
4240 | dapm_widget_invalidate_input_paths(w); | |
4241 | dapm_widget_invalidate_output_paths(w); | |
4242 | w->connected = 1; | |
4243 | } | |
91a5fca4 | 4244 | w->force = 1; |
75c1f891 | 4245 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4246 | |
91a5fca4 | 4247 | return 0; |
da34183e | 4248 | } |
11391100 CK |
4249 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4250 | ||
4251 | /** | |
4252 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4253 | * @dapm: DAPM context | |
4254 | * @pin: pin name | |
4255 | * | |
4256 | * Enables input/output pin regardless of any other state. This is | |
4257 | * intended for use with microphone bias supplies used in microphone | |
4258 | * jack detection. | |
4259 | * | |
4260 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4261 | * do any widget power switching. | |
4262 | */ | |
4263 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4264 | const char *pin) | |
4265 | { | |
4266 | int ret; | |
4267 | ||
4268 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4269 | ||
4270 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4271 | ||
4272 | mutex_unlock(&dapm->card->dapm_mutex); | |
4273 | ||
4274 | return ret; | |
4275 | } | |
da34183e MB |
4276 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4277 | ||
11391100 CK |
4278 | /** |
4279 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4280 | * @dapm: DAPM context | |
4281 | * @pin: pin name | |
4282 | * | |
4283 | * Disables input/output pin and its parents or children widgets. | |
4284 | * | |
4285 | * Requires external locking. | |
4286 | * | |
4287 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4288 | * do any widget power switching. | |
4289 | */ | |
4290 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4291 | const char *pin) | |
4292 | { | |
4293 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4294 | } | |
4295 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4296 | ||
a5302181 LG |
4297 | /** |
4298 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4299 | * @dapm: DAPM context |
a5302181 LG |
4300 | * @pin: pin name |
4301 | * | |
74b8f955 | 4302 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4303 | * |
a5302181 LG |
4304 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4305 | * do any widget power switching. | |
4306 | */ | |
ce6120cc LG |
4307 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4308 | const char *pin) | |
a5302181 | 4309 | { |
11391100 CK |
4310 | int ret; |
4311 | ||
4312 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4313 | ||
4314 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4315 | ||
4316 | mutex_unlock(&dapm->card->dapm_mutex); | |
4317 | ||
4318 | return ret; | |
2b97eabc | 4319 | } |
a5302181 | 4320 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4321 | |
11391100 CK |
4322 | /** |
4323 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4324 | * @dapm: DAPM context | |
4325 | * @pin: pin name | |
4326 | * | |
4327 | * Marks the specified pin as being not connected, disabling it along | |
4328 | * any parent or child widgets. At present this is identical to | |
4329 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4330 | * additional things such as disabling controls which only affect | |
4331 | * paths through the pin. | |
4332 | * | |
4333 | * Requires external locking. | |
4334 | * | |
4335 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4336 | * do any widget power switching. | |
4337 | */ | |
4338 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4339 | const char *pin) | |
4340 | { | |
4341 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4342 | } | |
4343 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4344 | ||
5817b52a MB |
4345 | /** |
4346 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4347 | * @dapm: DAPM context |
5817b52a MB |
4348 | * @pin: pin name |
4349 | * | |
4350 | * Marks the specified pin as being not connected, disabling it along | |
4351 | * any parent or child widgets. At present this is identical to | |
4352 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4353 | * additional things such as disabling controls which only affect | |
4354 | * paths through the pin. | |
4355 | * | |
4356 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4357 | * do any widget power switching. | |
4358 | */ | |
ce6120cc | 4359 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4360 | { |
11391100 CK |
4361 | int ret; |
4362 | ||
4363 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4364 | ||
4365 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4366 | ||
4367 | mutex_unlock(&dapm->card->dapm_mutex); | |
4368 | ||
4369 | return ret; | |
5817b52a MB |
4370 | } |
4371 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4372 | ||
eeec12bf | 4373 | /** |
a5302181 | 4374 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4375 | * @dapm: DAPM context |
a5302181 | 4376 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4377 | * |
a5302181 | 4378 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4379 | * |
a5302181 | 4380 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4381 | */ |
ce6120cc LG |
4382 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4383 | const char *pin) | |
eeec12bf | 4384 | { |
91a5fca4 | 4385 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4386 | |
91a5fca4 LPC |
4387 | if (w) |
4388 | return w->connected; | |
a68b38ad | 4389 | |
eeec12bf GG |
4390 | return 0; |
4391 | } | |
a5302181 | 4392 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4393 | |
1547aba9 MB |
4394 | /** |
4395 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4396 | * @dapm: DAPM context |
1547aba9 MB |
4397 | * @pin: audio signal pin endpoint (or start point) |
4398 | * | |
4399 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4400 | * system is disabled a path between two endpoints flagged as ignoring | |
4401 | * suspend will not be disabled. The path must already be enabled via | |
4402 | * normal means at suspend time, it will not be turned on if it was not | |
4403 | * already enabled. | |
4404 | */ | |
ce6120cc LG |
4405 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4406 | const char *pin) | |
1547aba9 | 4407 | { |
91a5fca4 | 4408 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4409 | |
91a5fca4 | 4410 | if (!w) { |
30a6a1a4 | 4411 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4412 | return -EINVAL; |
1547aba9 MB |
4413 | } |
4414 | ||
91a5fca4 LPC |
4415 | w->ignore_suspend = 1; |
4416 | ||
4417 | return 0; | |
1547aba9 MB |
4418 | } |
4419 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4420 | ||
2b97eabc RP |
4421 | /** |
4422 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4423 | * @dapm: DAPM context |
2b97eabc RP |
4424 | * |
4425 | * Free all dapm widgets and resources. | |
4426 | */ | |
ce6120cc | 4427 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4428 | { |
6c45e126 | 4429 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4430 | dapm_free_widgets(dapm); |
7be31be8 | 4431 | list_del(&dapm->list); |
2b97eabc RP |
4432 | } |
4433 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4434 | ||
57996358 | 4435 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4436 | { |
01005a72 | 4437 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4438 | struct snd_soc_dapm_widget *w; |
4439 | LIST_HEAD(down_list); | |
4440 | int powerdown = 0; | |
4441 | ||
01005a72 LG |
4442 | mutex_lock(&card->dapm_mutex); |
4443 | ||
97c866de JN |
4444 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4445 | if (w->dapm != dapm) | |
4446 | continue; | |
51737470 | 4447 | if (w->power) { |
828a842f | 4448 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4449 | w->power = 0; |
51737470 MB |
4450 | powerdown = 1; |
4451 | } | |
4452 | } | |
4453 | ||
4454 | /* If there were no widgets to power down we're already in | |
4455 | * standby. | |
4456 | */ | |
4457 | if (powerdown) { | |
7679e42e MB |
4458 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4459 | snd_soc_dapm_set_bias_level(dapm, | |
4460 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4461 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4462 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4463 | snd_soc_dapm_set_bias_level(dapm, | |
4464 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4465 | } |
01005a72 LG |
4466 | |
4467 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4468 | } |
4469 | ||
4470 | /* | |
4471 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4472 | */ | |
4473 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4474 | { | |
57996358 | 4475 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4476 | |
57996358 | 4477 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4478 | if (dapm != &card->dapm) { |
4479 | soc_dapm_shutdown_dapm(dapm); | |
4480 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4481 | snd_soc_dapm_set_bias_level(dapm, | |
4482 | SND_SOC_BIAS_OFF); | |
4483 | } | |
ce6120cc | 4484 | } |
17282ba4 XX |
4485 | |
4486 | soc_dapm_shutdown_dapm(&card->dapm); | |
4487 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4488 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4489 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4490 | } |
4491 | ||
2b97eabc | 4492 | /* Module information */ |
d331124d | 4493 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4494 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4495 | MODULE_LICENSE("GPL"); |