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