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, | |
313 | struct snd_kcontrol *kcontrol) | |
314 | { | |
315 | struct dapm_kcontrol_data *data; | |
57295073 | 316 | struct soc_mixer_control *mc; |
561ed680 | 317 | struct soc_enum *e; |
773da9b3 CK |
318 | const char *name; |
319 | int ret; | |
e84357f7 | 320 | |
2c75bdf3 | 321 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 322 | if (!data) |
e84357f7 | 323 | return -ENOMEM; |
e84357f7 | 324 | |
5106b92f | 325 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 326 | |
57295073 LPC |
327 | switch (widget->id) { |
328 | case snd_soc_dapm_switch: | |
329 | case snd_soc_dapm_mixer: | |
330 | case snd_soc_dapm_mixer_named_ctl: | |
331 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
332 | ||
333 | if (mc->autodisable) { | |
334 | struct snd_soc_dapm_widget template; | |
335 | ||
773da9b3 CK |
336 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, |
337 | "Autodisable"); | |
338 | if (!name) { | |
339 | ret = -ENOMEM; | |
340 | goto err_data; | |
341 | } | |
342 | ||
57295073 LPC |
343 | memset(&template, 0, sizeof(template)); |
344 | template.reg = mc->reg; | |
345 | template.mask = (1 << fls(mc->max)) - 1; | |
346 | template.shift = mc->shift; | |
347 | if (mc->invert) | |
348 | template.off_val = mc->max; | |
349 | else | |
350 | template.off_val = 0; | |
351 | template.on_val = template.off_val; | |
352 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 353 | template.name = name; |
57295073 | 354 | |
2daabd78 LPC |
355 | data->value = template.on_val; |
356 | ||
02aa78ab LG |
357 | data->widget = |
358 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 359 | &template); |
e18077b6 | 360 | kfree(name); |
57295073 | 361 | if (!data->widget) { |
773da9b3 | 362 | ret = -ENOMEM; |
e18077b6 | 363 | goto err_data; |
57295073 LPC |
364 | } |
365 | } | |
366 | break; | |
d714f97c | 367 | case snd_soc_dapm_demux: |
561ed680 CK |
368 | case snd_soc_dapm_mux: |
369 | e = (struct soc_enum *)kcontrol->private_value; | |
370 | ||
371 | if (e->autodisable) { | |
372 | struct snd_soc_dapm_widget template; | |
373 | ||
374 | name = kasprintf(GFP_KERNEL, "%s %s", kcontrol->id.name, | |
375 | "Autodisable"); | |
376 | if (!name) { | |
377 | ret = -ENOMEM; | |
378 | goto err_data; | |
379 | } | |
380 | ||
381 | memset(&template, 0, sizeof(template)); | |
382 | template.reg = e->reg; | |
383 | template.mask = e->mask << e->shift_l; | |
384 | template.shift = e->shift_l; | |
385 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
386 | template.on_val = template.off_val; | |
387 | template.id = snd_soc_dapm_kcontrol; | |
388 | template.name = name; | |
389 | ||
390 | data->value = template.on_val; | |
391 | ||
ffacb48e CK |
392 | data->widget = snd_soc_dapm_new_control_unlocked( |
393 | widget->dapm, &template); | |
e18077b6 | 394 | kfree(name); |
561ed680 CK |
395 | if (!data->widget) { |
396 | ret = -ENOMEM; | |
e18077b6 | 397 | goto err_data; |
561ed680 CK |
398 | } |
399 | ||
400 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
401 | widget, NULL, NULL); | |
402 | } | |
403 | break; | |
57295073 LPC |
404 | default: |
405 | break; | |
406 | } | |
407 | ||
e84357f7 LPC |
408 | kcontrol->private_data = data; |
409 | ||
410 | return 0; | |
773da9b3 | 411 | |
773da9b3 CK |
412 | err_data: |
413 | kfree(data); | |
414 | return ret; | |
e84357f7 LPC |
415 | } |
416 | ||
417 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
418 | { | |
419 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
2c75bdf3 | 420 | kfree(data->wlist); |
e84357f7 LPC |
421 | kfree(data); |
422 | } | |
423 | ||
424 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
425 | const struct snd_kcontrol *kcontrol) | |
426 | { | |
427 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
428 | ||
2c75bdf3 | 429 | return data->wlist; |
e84357f7 LPC |
430 | } |
431 | ||
432 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
433 | struct snd_soc_dapm_widget *widget) | |
434 | { | |
435 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
436 | struct snd_soc_dapm_widget_list *new_wlist; |
437 | unsigned int n; | |
e84357f7 | 438 | |
2c75bdf3 LPC |
439 | if (data->wlist) |
440 | n = data->wlist->num_widgets + 1; | |
441 | else | |
442 | n = 1; | |
443 | ||
444 | new_wlist = krealloc(data->wlist, | |
445 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
446 | if (!new_wlist) | |
e84357f7 LPC |
447 | return -ENOMEM; |
448 | ||
2c75bdf3 LPC |
449 | new_wlist->widgets[n - 1] = widget; |
450 | new_wlist->num_widgets = n; | |
e84357f7 | 451 | |
2c75bdf3 | 452 | data->wlist = new_wlist; |
e84357f7 LPC |
453 | |
454 | return 0; | |
455 | } | |
456 | ||
5106b92f LPC |
457 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
458 | struct snd_soc_dapm_path *path) | |
459 | { | |
460 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
461 | ||
462 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
463 | } |
464 | ||
465 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
466 | { | |
467 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
468 | ||
469 | if (!data->widget) | |
470 | return true; | |
471 | ||
472 | return data->widget->power; | |
5106b92f LPC |
473 | } |
474 | ||
475 | static struct list_head *dapm_kcontrol_get_path_list( | |
476 | const struct snd_kcontrol *kcontrol) | |
477 | { | |
478 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
479 | ||
480 | return &data->paths; | |
481 | } | |
482 | ||
483 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
484 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
485 | list_kcontrol) | |
486 | ||
5dc0158a | 487 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
488 | { |
489 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
490 | ||
491 | return data->value; | |
492 | } | |
5dc0158a | 493 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
494 | |
495 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
496 | unsigned int value) | |
497 | { | |
498 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
499 | ||
500 | if (data->value == value) | |
501 | return false; | |
502 | ||
57295073 LPC |
503 | if (data->widget) |
504 | data->widget->on_val = value; | |
505 | ||
cf7c1de2 LPC |
506 | data->value = value; |
507 | ||
508 | return true; | |
509 | } | |
510 | ||
ce0fc93a LPC |
511 | /** |
512 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
513 | * kcontrol | |
514 | * @kcontrol: The kcontrol | |
515 | * | |
516 | * Note: This function must only be used on kcontrols that are known to have | |
517 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
518 | */ | |
519 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
520 | struct snd_kcontrol *kcontrol) | |
521 | { | |
522 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
523 | } | |
524 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
525 | ||
6c120e19 LG |
526 | static void dapm_reset(struct snd_soc_card *card) |
527 | { | |
528 | struct snd_soc_dapm_widget *w; | |
529 | ||
f9fa2b18 MB |
530 | lockdep_assert_held(&card->dapm_mutex); |
531 | ||
6c120e19 LG |
532 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
533 | ||
534 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 535 | w->new_power = w->power; |
6c120e19 | 536 | w->power_checked = false; |
6c120e19 LG |
537 | } |
538 | } | |
539 | ||
94f99c87 LPC |
540 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
541 | { | |
542 | if (!dapm->component) | |
543 | return NULL; | |
544 | return dapm->component->name_prefix; | |
545 | } | |
546 | ||
ce0fc93a | 547 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 548 | unsigned int *value) |
0445bdf4 | 549 | { |
ce0fc93a | 550 | if (!dapm->component) |
e2c330b9 | 551 | return -EIO; |
ce0fc93a | 552 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
553 | } |
554 | ||
ce0fc93a | 555 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 556 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 557 | { |
ce0fc93a | 558 | if (!dapm->component) |
e2c330b9 | 559 | return -EIO; |
fcf6c5ea MB |
560 | return snd_soc_component_update_bits(dapm->component, reg, |
561 | mask, value); | |
49575fb5 LG |
562 | } |
563 | ||
ce0fc93a LPC |
564 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
565 | int reg, unsigned int mask, unsigned int value) | |
566 | { | |
567 | if (!dapm->component) | |
568 | return -EIO; | |
569 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
570 | } | |
571 | ||
eb270e98 MB |
572 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
573 | { | |
e2c330b9 LPC |
574 | if (dapm->component) |
575 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
576 | } |
577 | ||
45a110a1 CK |
578 | static struct snd_soc_dapm_widget * |
579 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
580 | { | |
581 | struct snd_soc_dapm_widget *w = wcache->widget; | |
582 | struct list_head *wlist; | |
583 | const int depth = 2; | |
584 | int i = 0; | |
585 | ||
586 | if (w) { | |
587 | wlist = &w->dapm->card->widgets; | |
588 | ||
589 | list_for_each_entry_from(w, wlist, list) { | |
590 | if (!strcmp(name, w->name)) | |
591 | return w; | |
592 | ||
593 | if (++i == depth) | |
594 | break; | |
595 | } | |
596 | } | |
597 | ||
598 | return NULL; | |
599 | } | |
600 | ||
601 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
602 | struct snd_soc_dapm_widget *w) | |
603 | { | |
604 | wcache->widget = w; | |
605 | } | |
606 | ||
fa880775 LPC |
607 | /** |
608 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
609 | * @dapm: The DAPM context for which to set the level | |
610 | * @level: The level to set | |
611 | * | |
612 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
613 | * callback of DAPM context with the specified level. This will even happen if | |
614 | * the context is already at the same level. Furthermore it will not go through | |
615 | * the normal bias level sequencing, meaning any intermediate states between the | |
616 | * current and the target state will not be entered. | |
617 | * | |
618 | * Note that the change in bias level is only temporary and the next time | |
619 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
620 | * determined by the DAPM core. The function is mainly intended to be used to | |
621 | * used during probe or resume from suspend to power up the device so | |
622 | * initialization can be done, before the DAPM core takes over. | |
623 | */ | |
624 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
625 | enum snd_soc_bias_level level) | |
626 | { | |
627 | int ret = 0; | |
628 | ||
629 | if (dapm->set_bias_level) | |
630 | ret = dapm->set_bias_level(dapm, level); | |
631 | ||
f4bf8d77 LPC |
632 | if (ret == 0) |
633 | dapm->bias_level = level; | |
634 | ||
fa880775 LPC |
635 | return ret; |
636 | } | |
637 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
638 | ||
452c5eaa MB |
639 | /** |
640 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 641 | * @dapm: DAPM context |
452c5eaa MB |
642 | * @level: level to configure |
643 | * | |
644 | * Configure the bias (power) levels for the SoC audio device. | |
645 | * | |
646 | * Returns 0 for success else error. | |
647 | */ | |
ed5a4c47 | 648 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 649 | enum snd_soc_bias_level level) |
452c5eaa | 650 | { |
ed5a4c47 | 651 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
652 | int ret = 0; |
653 | ||
84e90930 MB |
654 | trace_snd_soc_bias_level_start(card, level); |
655 | ||
f0fba2ad | 656 | if (card && card->set_bias_level) |
d4c6005f | 657 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
658 | if (ret != 0) |
659 | goto out; | |
660 | ||
fa880775 LPC |
661 | if (!card || dapm != &card->dapm) |
662 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 663 | |
171ec6b0 MB |
664 | if (ret != 0) |
665 | goto out; | |
666 | ||
667 | if (card && card->set_bias_level_post) | |
d4c6005f | 668 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 669 | out: |
84e90930 MB |
670 | trace_snd_soc_bias_level_done(card, level); |
671 | ||
452c5eaa MB |
672 | return ret; |
673 | } | |
674 | ||
74b8f955 | 675 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 676 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
677 | struct snd_soc_dapm_path *path, const char *control_name, |
678 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 679 | { |
d714f97c | 680 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 681 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 682 | unsigned int val, item; |
2b97eabc | 683 | int i; |
24ff33ac | 684 | |
234c0b8f | 685 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 686 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
687 | val = (val >> e->shift_l) & e->mask; |
688 | item = snd_soc_enum_val_to_item(e, val); | |
689 | } else { | |
24ff33ac DP |
690 | /* since a virtual mux has no backing registers to |
691 | * decide which path to connect, it will try to match | |
692 | * with the first enumeration. This is to ensure | |
693 | * that the default mux choice (the first) will be | |
694 | * correctly powered up during initialization. | |
695 | */ | |
234c0b8f | 696 | item = 0; |
24ff33ac | 697 | } |
2e72f8e3 | 698 | |
9a8d38db | 699 | for (i = 0; i < e->items; i++) { |
2b97eabc | 700 | if (!(strcmp(control_name, e->texts[i]))) { |
98ad73c9 | 701 | path->name = e->texts[i]; |
234c0b8f LPC |
702 | if (i == item) |
703 | path->connect = 1; | |
704 | else | |
705 | path->connect = 0; | |
2b97eabc RP |
706 | return 0; |
707 | } | |
708 | } | |
709 | ||
710 | return -ENODEV; | |
711 | } | |
712 | ||
234c0b8f | 713 | /* set up initial codec paths */ |
5fe5b767 | 714 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i) |
234c0b8f LPC |
715 | { |
716 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 717 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
718 | unsigned int reg = mc->reg; |
719 | unsigned int shift = mc->shift; | |
720 | unsigned int max = mc->max; | |
721 | unsigned int mask = (1 << fls(max)) - 1; | |
722 | unsigned int invert = mc->invert; | |
723 | unsigned int val; | |
724 | ||
725 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 726 | soc_dapm_read(p->sink->dapm, reg, &val); |
234c0b8f LPC |
727 | val = (val >> shift) & mask; |
728 | if (invert) | |
729 | val = max - val; | |
730 | p->connect = !!val; | |
731 | } else { | |
732 | p->connect = 0; | |
733 | } | |
734 | } | |
735 | ||
74b8f955 | 736 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 737 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
738 | struct snd_soc_dapm_path *path, const char *control_name) |
739 | { | |
740 | int i; | |
741 | ||
742 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
743 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
744 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
745 | path->name = path->sink->kcontrol_news[i].name; | |
746 | dapm_set_mixer_path_status(path, i); | |
2b97eabc RP |
747 | return 0; |
748 | } | |
749 | } | |
750 | return -ENODEV; | |
751 | } | |
752 | ||
af46800b | 753 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 754 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
755 | const struct snd_kcontrol_new *kcontrol_new, |
756 | struct snd_kcontrol **kcontrol) | |
757 | { | |
758 | struct snd_soc_dapm_widget *w; | |
759 | int i; | |
760 | ||
761 | *kcontrol = NULL; | |
762 | ||
763 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
764 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
765 | continue; | |
af46800b SW |
766 | for (i = 0; i < w->num_kcontrols; i++) { |
767 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
768 | if (w->kcontrols) | |
769 | *kcontrol = w->kcontrols[i]; | |
770 | return 1; | |
771 | } | |
772 | } | |
773 | } | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
85762e71 SW |
778 | /* |
779 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
780 | * create it. Either way, add the widget into the control's widget list | |
781 | */ | |
782 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
946d92a1 | 783 | int kci) |
2b97eabc | 784 | { |
4b80b8c2 | 785 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 786 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 787 | const char *prefix; |
85762e71 SW |
788 | size_t prefix_len; |
789 | int shared; | |
790 | struct snd_kcontrol *kcontrol; | |
85762e71 | 791 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 792 | char *long_name = NULL; |
85762e71 | 793 | const char *name; |
e5092c96 | 794 | int ret = 0; |
efb7ac3f | 795 | |
94f99c87 | 796 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
797 | if (prefix) |
798 | prefix_len = strlen(prefix) + 1; | |
799 | else | |
800 | prefix_len = 0; | |
801 | ||
85762e71 SW |
802 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
803 | &kcontrol); | |
2b97eabc | 804 | |
85762e71 SW |
805 | if (!kcontrol) { |
806 | if (shared) { | |
807 | wname_in_long_name = false; | |
808 | kcname_in_long_name = true; | |
809 | } else { | |
810 | switch (w->id) { | |
811 | case snd_soc_dapm_switch: | |
812 | case snd_soc_dapm_mixer: | |
813 | wname_in_long_name = true; | |
814 | kcname_in_long_name = true; | |
815 | break; | |
816 | case snd_soc_dapm_mixer_named_ctl: | |
817 | wname_in_long_name = false; | |
818 | kcname_in_long_name = true; | |
819 | break; | |
d714f97c | 820 | case snd_soc_dapm_demux: |
85762e71 | 821 | case snd_soc_dapm_mux: |
85762e71 SW |
822 | wname_in_long_name = true; |
823 | kcname_in_long_name = false; | |
824 | break; | |
825 | default: | |
85762e71 | 826 | return -EINVAL; |
82cd8764 | 827 | } |
85762e71 SW |
828 | } |
829 | ||
830 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
831 | /* |
832 | * The control will get a prefix from the control | |
833 | * creation process but we're also using the same | |
834 | * prefix for widgets so cut the prefix off the | |
835 | * front of the widget name. | |
ca9c1aae | 836 | */ |
2b581074 | 837 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
838 | w->name + prefix_len, |
839 | w->kcontrol_news[kci].name); | |
e84357f7 | 840 | if (long_name == NULL) |
2b581074 | 841 | return -ENOMEM; |
85762e71 SW |
842 | |
843 | name = long_name; | |
844 | } else if (wname_in_long_name) { | |
845 | long_name = NULL; | |
846 | name = w->name + prefix_len; | |
847 | } else { | |
848 | long_name = NULL; | |
849 | name = w->kcontrol_news[kci].name; | |
850 | } | |
ca9c1aae | 851 | |
e84357f7 | 852 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 853 | prefix); |
e5092c96 DM |
854 | if (!kcontrol) { |
855 | ret = -ENOMEM; | |
856 | goto exit_free; | |
857 | } | |
858 | ||
9356e9d5 | 859 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
860 | |
861 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
862 | if (ret) { | |
863 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 864 | goto exit_free; |
e84357f7 LPC |
865 | } |
866 | ||
85762e71 SW |
867 | ret = snd_ctl_add(card, kcontrol); |
868 | if (ret < 0) { | |
869 | dev_err(dapm->dev, | |
870 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
871 | w->name, name, ret); | |
e5092c96 | 872 | goto exit_free; |
85762e71 | 873 | } |
85762e71 | 874 | } |
2b97eabc | 875 | |
2c75bdf3 | 876 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
877 | if (ret == 0) |
878 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 879 | |
e5092c96 DM |
880 | exit_free: |
881 | kfree(long_name); | |
ca9c1aae | 882 | |
e5092c96 | 883 | return ret; |
85762e71 | 884 | } |
219b93f5 | 885 | |
85762e71 SW |
886 | /* create new dapm mixer control */ |
887 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
888 | { | |
889 | int i, ret; | |
890 | struct snd_soc_dapm_path *path; | |
561ed680 | 891 | struct dapm_kcontrol_data *data; |
85762e71 SW |
892 | |
893 | /* add kcontrol */ | |
894 | for (i = 0; i < w->num_kcontrols; i++) { | |
895 | /* match name */ | |
e63bfd45 | 896 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
897 | /* mixer/mux paths name must match control name */ |
898 | if (path->name != (char *)w->kcontrol_news[i].name) | |
899 | continue; | |
900 | ||
561ed680 CK |
901 | if (!w->kcontrols[i]) { |
902 | ret = dapm_create_or_share_mixmux_kcontrol(w, i); | |
903 | if (ret < 0) | |
904 | return ret; | |
2b97eabc | 905 | } |
85762e71 | 906 | |
946d92a1 | 907 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
908 | |
909 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
910 | if (data->widget) | |
911 | snd_soc_dapm_add_path(data->widget->dapm, | |
912 | data->widget, | |
913 | path->source, | |
914 | NULL, NULL); | |
2b97eabc RP |
915 | } |
916 | } | |
85762e71 SW |
917 | |
918 | return 0; | |
2b97eabc RP |
919 | } |
920 | ||
921 | /* create new dapm mux control */ | |
4b80b8c2 | 922 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 923 | { |
4b80b8c2 | 924 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 925 | enum snd_soc_dapm_direction dir; |
85762e71 | 926 | struct snd_soc_dapm_path *path; |
d714f97c | 927 | const char *type; |
af46800b | 928 | int ret; |
2b97eabc | 929 | |
d714f97c LPC |
930 | switch (w->id) { |
931 | case snd_soc_dapm_mux: | |
a3423b02 | 932 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
933 | type = "mux"; |
934 | break; | |
935 | case snd_soc_dapm_demux: | |
a3423b02 | 936 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
937 | type = "demux"; |
938 | break; | |
939 | default: | |
940 | return -EINVAL; | |
941 | } | |
942 | ||
af46800b SW |
943 | if (w->num_kcontrols != 1) { |
944 | dev_err(dapm->dev, | |
d714f97c | 945 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 946 | w->name); |
2b97eabc RP |
947 | return -EINVAL; |
948 | } | |
949 | ||
a3423b02 | 950 | if (list_empty(&w->edges[dir])) { |
d714f97c | 951 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 952 | return -EINVAL; |
af46800b | 953 | } |
ce6120cc | 954 | |
946d92a1 | 955 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0); |
85762e71 SW |
956 | if (ret < 0) |
957 | return ret; | |
fad59888 | 958 | |
a3423b02 LPC |
959 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
960 | if (path->name) | |
961 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 962 | } |
2b97eabc | 963 | |
af46800b | 964 | return 0; |
2b97eabc RP |
965 | } |
966 | ||
967 | /* create new dapm volume control */ | |
4b80b8c2 | 968 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 969 | { |
a6c65736 | 970 | if (w->num_kcontrols) |
f7d41ae8 | 971 | dev_err(w->dapm->dev, |
30a6a1a4 | 972 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 973 | |
a6c65736 | 974 | return 0; |
2b97eabc RP |
975 | } |
976 | ||
c6615082 NO |
977 | /* create new dapm dai link control */ |
978 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
979 | { | |
980 | int i, ret; | |
981 | struct snd_kcontrol *kcontrol; | |
982 | struct snd_soc_dapm_context *dapm = w->dapm; | |
983 | struct snd_card *card = dapm->card->snd_card; | |
984 | ||
985 | /* create control for links with > 1 config */ | |
986 | if (w->num_params <= 1) | |
987 | return 0; | |
988 | ||
989 | /* add kcontrol */ | |
990 | for (i = 0; i < w->num_kcontrols; i++) { | |
991 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
992 | w->name, NULL); | |
993 | ret = snd_ctl_add(card, kcontrol); | |
994 | if (ret < 0) { | |
995 | dev_err(dapm->dev, | |
996 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
997 | w->name, w->kcontrol_news[i].name, ret); | |
998 | return ret; | |
999 | } | |
1000 | kcontrol->private_data = w; | |
1001 | w->kcontrols[i] = kcontrol; | |
1002 | } | |
1003 | ||
1004 | return 0; | |
1005 | } | |
1006 | ||
9949788b MB |
1007 | /* We implement power down on suspend by checking the power state of |
1008 | * the ALSA card - when we are suspending the ALSA state for the card | |
1009 | * is set to D3. | |
1010 | */ | |
1011 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1012 | { | |
12ea2c78 | 1013 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1014 | |
f0fba2ad | 1015 | switch (level) { |
9949788b MB |
1016 | case SNDRV_CTL_POWER_D3hot: |
1017 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1018 | if (widget->ignore_suspend) |
30a6a1a4 | 1019 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1020 | widget->name); |
1547aba9 | 1021 | return widget->ignore_suspend; |
9949788b MB |
1022 | default: |
1023 | return 1; | |
1024 | } | |
1025 | } | |
1026 | ||
1ce43acf LPC |
1027 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1028 | struct list_head *widgets) | |
ec2e3031 | 1029 | { |
1ce43acf LPC |
1030 | struct snd_soc_dapm_widget *w; |
1031 | struct list_head *it; | |
1032 | unsigned int size = 0; | |
1033 | unsigned int i = 0; | |
ec2e3031 | 1034 | |
1ce43acf LPC |
1035 | list_for_each(it, widgets) |
1036 | size++; | |
ec2e3031 | 1037 | |
1ce43acf LPC |
1038 | *list = kzalloc(sizeof(**list) + size * sizeof(*w), GFP_KERNEL); |
1039 | if (*list == NULL) | |
ec2e3031 | 1040 | return -ENOMEM; |
ec2e3031 | 1041 | |
1ce43acf LPC |
1042 | list_for_each_entry(w, widgets, work_list) |
1043 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1044 | |
1ce43acf LPC |
1045 | (*list)->num_widgets = i; |
1046 | ||
1047 | return 0; | |
ec2e3031 LG |
1048 | } |
1049 | ||
2b97eabc | 1050 | /* |
a3423b02 LPC |
1051 | * Common implementation for is_connected_output_ep() and |
1052 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1053 | * the two specialized functions is only marginally larger then the size of the | |
1054 | * generic function and at the same time the fast path of the specialized | |
1055 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1056 | */ |
a3423b02 LPC |
1057 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1058 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
1059 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *)) | |
2b97eabc | 1060 | { |
a3423b02 | 1061 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1062 | struct snd_soc_dapm_path *path; |
1063 | int con = 0; | |
1064 | ||
a3423b02 LPC |
1065 | if (widget->endpoints[dir] >= 0) |
1066 | return widget->endpoints[dir]; | |
024dc078 | 1067 | |
de02d078 MB |
1068 | DAPM_UPDATE_STAT(widget, path_checks); |
1069 | ||
1ce43acf LPC |
1070 | /* do we need to add this widget to the list ? */ |
1071 | if (list) | |
1072 | list_add_tail(&widget->work_list, list); | |
1073 | ||
a3423b02 LPC |
1074 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1075 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1076 | return widget->endpoints[dir]; | |
2b97eabc RP |
1077 | } |
1078 | ||
a3423b02 | 1079 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1080 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1081 | ||
c1862c8b | 1082 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1083 | continue; |
1084 | ||
8af294b4 MB |
1085 | if (path->walking) |
1086 | return 1; | |
1087 | ||
a3423b02 | 1088 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1089 | |
7ddd4cd5 | 1090 | if (path->connect) { |
8af294b4 | 1091 | path->walking = 1; |
a3423b02 | 1092 | con += fn(path->node[dir], list); |
8af294b4 | 1093 | path->walking = 0; |
2b97eabc RP |
1094 | } |
1095 | } | |
1096 | ||
a3423b02 | 1097 | widget->endpoints[dir] = con; |
024dc078 | 1098 | |
2b97eabc RP |
1099 | return con; |
1100 | } | |
1101 | ||
a3423b02 LPC |
1102 | /* |
1103 | * Recursively check for a completed path to an active or physically connected | |
1104 | * output widget. Returns number of complete paths. | |
1105 | */ | |
1106 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
1107 | struct list_head *list) | |
1108 | { | |
1109 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
1110 | is_connected_output_ep); | |
1111 | } | |
1112 | ||
2b97eabc RP |
1113 | /* |
1114 | * Recursively check for a completed path to an active or physically connected | |
1115 | * input widget. Returns number of complete paths. | |
1116 | */ | |
ec2e3031 | 1117 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1ce43acf | 1118 | struct list_head *list) |
2b97eabc | 1119 | { |
a3423b02 LPC |
1120 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
1121 | is_connected_input_ep); | |
2b97eabc RP |
1122 | } |
1123 | ||
ec2e3031 LG |
1124 | /** |
1125 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1126 | * @dai: the soc DAI. | |
1127 | * @stream: stream direction. | |
1128 | * @list: list of active widgets for this stream. | |
1129 | * | |
1130 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1131 | * the initial stream specified by name. This takes into account | |
1132 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1133 | * | |
1134 | * Returns the number of valid paths or negative error. | |
1135 | */ | |
1136 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1137 | struct snd_soc_dapm_widget_list **list) | |
1138 | { | |
313665b9 | 1139 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1140 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1141 | LIST_HEAD(widgets); |
ec2e3031 | 1142 | int paths; |
1ce43acf | 1143 | int ret; |
ec2e3031 LG |
1144 | |
1145 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1146 | |
1147 | /* | |
1148 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1149 | * to reset the cached number of inputs and outputs. | |
1150 | */ | |
1151 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 LPC |
1152 | w->endpoints[SND_SOC_DAPM_DIR_IN] = -1; |
1153 | w->endpoints[SND_SOC_DAPM_DIR_OUT] = -1; | |
92a99ea4 | 1154 | } |
ec2e3031 | 1155 | |
130897ac | 1156 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1ce43acf | 1157 | paths = is_connected_output_ep(dai->playback_widget, &widgets); |
130897ac | 1158 | else |
1ce43acf LPC |
1159 | paths = is_connected_input_ep(dai->capture_widget, &widgets); |
1160 | ||
1161 | /* Drop starting point */ | |
1162 | list_del(widgets.next); | |
1163 | ||
1164 | ret = dapm_widget_list_create(list, &widgets); | |
1165 | if (ret) | |
30abbe77 | 1166 | paths = ret; |
ec2e3031 LG |
1167 | |
1168 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1169 | mutex_unlock(&card->dapm_mutex); |
1170 | ||
1171 | return paths; | |
1172 | } | |
1173 | ||
62ea874a MB |
1174 | /* |
1175 | * Handler for regulator supply widget. | |
1176 | */ | |
1177 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1178 | struct snd_kcontrol *kcontrol, int event) | |
1179 | { | |
c05b84d1 MB |
1180 | int ret; |
1181 | ||
eb270e98 MB |
1182 | soc_dapm_async_complete(w->dapm); |
1183 | ||
c05b84d1 | 1184 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1185 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1186 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1187 | if (ret != 0) |
1188 | dev_warn(w->dapm->dev, | |
30686c35 | 1189 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1190 | w->name, ret); |
1191 | } | |
1192 | ||
a3cc056b | 1193 | return regulator_enable(w->regulator); |
c05b84d1 | 1194 | } else { |
de9ba98b | 1195 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1196 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1197 | if (ret != 0) |
1198 | dev_warn(w->dapm->dev, | |
30686c35 | 1199 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1200 | w->name, ret); |
1201 | } | |
1202 | ||
a3cc056b | 1203 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1204 | } |
62ea874a MB |
1205 | } |
1206 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1207 | ||
d7e7eb91 OL |
1208 | /* |
1209 | * Handler for clock supply widget. | |
1210 | */ | |
1211 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1212 | struct snd_kcontrol *kcontrol, int event) | |
1213 | { | |
1214 | if (!w->clk) | |
1215 | return -EIO; | |
1216 | ||
eb270e98 MB |
1217 | soc_dapm_async_complete(w->dapm); |
1218 | ||
ec02995a | 1219 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1220 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1221 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1222 | } else { |
37c1b927 | 1223 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1224 | return 0; |
1225 | } | |
ec02995a | 1226 | #endif |
98b3cf12 | 1227 | return 0; |
d7e7eb91 OL |
1228 | } |
1229 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1230 | ||
d805002b MB |
1231 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1232 | { | |
9b8a83b2 MB |
1233 | if (w->power_checked) |
1234 | return w->new_power; | |
1235 | ||
d805002b | 1236 | if (w->force) |
9b8a83b2 | 1237 | w->new_power = 1; |
d805002b | 1238 | else |
9b8a83b2 MB |
1239 | w->new_power = w->power_check(w); |
1240 | ||
1241 | w->power_checked = true; | |
1242 | ||
1243 | return w->new_power; | |
d805002b MB |
1244 | } |
1245 | ||
cd0f2d47 MB |
1246 | /* Generic check to see if a widget should be powered. |
1247 | */ | |
1248 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1249 | { | |
1250 | int in, out; | |
1251 | ||
de02d078 MB |
1252 | DAPM_UPDATE_STAT(w, power_checks); |
1253 | ||
ec2e3031 | 1254 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1255 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1256 | return out != 0 && in != 0; |
1257 | } | |
1258 | ||
246d0a17 MB |
1259 | /* Check to see if a power supply is needed */ |
1260 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1261 | { | |
1262 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1263 | |
de02d078 MB |
1264 | DAPM_UPDATE_STAT(w, power_checks); |
1265 | ||
246d0a17 | 1266 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1267 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1268 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1269 | ||
bf3a9e13 MB |
1270 | if (path->weak) |
1271 | continue; | |
1272 | ||
215edda3 MB |
1273 | if (path->connected && |
1274 | !path->connected(path->source, path->sink)) | |
1275 | continue; | |
1276 | ||
f68d7e16 MB |
1277 | if (dapm_widget_power_check(path->sink)) |
1278 | return 1; | |
246d0a17 MB |
1279 | } |
1280 | ||
f68d7e16 | 1281 | return 0; |
246d0a17 MB |
1282 | } |
1283 | ||
35c64bca MB |
1284 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1285 | { | |
1286 | return 1; | |
1287 | } | |
1288 | ||
38357ab2 MB |
1289 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1290 | struct snd_soc_dapm_widget *b, | |
828a842f | 1291 | bool power_up) |
42aa3418 | 1292 | { |
828a842f MB |
1293 | int *sort; |
1294 | ||
1295 | if (power_up) | |
1296 | sort = dapm_up_seq; | |
1297 | else | |
1298 | sort = dapm_down_seq; | |
1299 | ||
38357ab2 MB |
1300 | if (sort[a->id] != sort[b->id]) |
1301 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1302 | if (a->subseq != b->subseq) { |
1303 | if (power_up) | |
1304 | return a->subseq - b->subseq; | |
1305 | else | |
1306 | return b->subseq - a->subseq; | |
1307 | } | |
b22ead2a MB |
1308 | if (a->reg != b->reg) |
1309 | return a->reg - b->reg; | |
84dab567 MB |
1310 | if (a->dapm != b->dapm) |
1311 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1312 | |
38357ab2 MB |
1313 | return 0; |
1314 | } | |
42aa3418 | 1315 | |
38357ab2 MB |
1316 | /* Insert a widget in order into a DAPM power sequence. */ |
1317 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1318 | struct list_head *list, | |
828a842f | 1319 | bool power_up) |
38357ab2 MB |
1320 | { |
1321 | struct snd_soc_dapm_widget *w; | |
1322 | ||
1323 | list_for_each_entry(w, list, power_list) | |
828a842f | 1324 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1325 | list_add_tail(&new_widget->power_list, &w->power_list); |
1326 | return; | |
1327 | } | |
1328 | ||
1329 | list_add_tail(&new_widget->power_list, list); | |
1330 | } | |
1331 | ||
95dd5cd6 | 1332 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1333 | struct snd_soc_dapm_widget *w, int event) |
1334 | { | |
68f89ad8 MB |
1335 | const char *ev_name; |
1336 | int power, ret; | |
1337 | ||
1338 | switch (event) { | |
1339 | case SND_SOC_DAPM_PRE_PMU: | |
1340 | ev_name = "PRE_PMU"; | |
1341 | power = 1; | |
1342 | break; | |
1343 | case SND_SOC_DAPM_POST_PMU: | |
1344 | ev_name = "POST_PMU"; | |
1345 | power = 1; | |
1346 | break; | |
1347 | case SND_SOC_DAPM_PRE_PMD: | |
1348 | ev_name = "PRE_PMD"; | |
1349 | power = 0; | |
1350 | break; | |
1351 | case SND_SOC_DAPM_POST_PMD: | |
1352 | ev_name = "POST_PMD"; | |
1353 | power = 0; | |
1354 | break; | |
80114129 MB |
1355 | case SND_SOC_DAPM_WILL_PMU: |
1356 | ev_name = "WILL_PMU"; | |
1357 | power = 1; | |
1358 | break; | |
1359 | case SND_SOC_DAPM_WILL_PMD: | |
1360 | ev_name = "WILL_PMD"; | |
1361 | power = 0; | |
1362 | break; | |
68f89ad8 | 1363 | default: |
a6ed0608 | 1364 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1365 | return; |
1366 | } | |
1367 | ||
39eb5fd1 | 1368 | if (w->new_power != power) |
68f89ad8 MB |
1369 | return; |
1370 | ||
1371 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1372 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1373 | w->name, ev_name); |
eb270e98 | 1374 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1375 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1376 | ret = w->event(w, NULL, event); |
84e90930 | 1377 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1378 | if (ret < 0) |
95dd5cd6 | 1379 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1380 | ev_name, w->name, ret); |
1381 | } | |
1382 | } | |
1383 | ||
b22ead2a | 1384 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1385 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1386 | struct list_head *pending) |
163cac06 | 1387 | { |
ce0fc93a | 1388 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1389 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1390 | int reg; |
b22ead2a MB |
1391 | unsigned int value = 0; |
1392 | unsigned int mask = 0; | |
b22ead2a | 1393 | |
ce0fc93a LPC |
1394 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1395 | reg = w->reg; | |
1396 | dapm = w->dapm; | |
b22ead2a MB |
1397 | |
1398 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1399 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1400 | w->power = w->new_power; |
b22ead2a | 1401 | |
de9ba98b LPC |
1402 | mask |= w->mask << w->shift; |
1403 | if (w->power) | |
1404 | value |= w->on_val << w->shift; | |
b22ead2a | 1405 | else |
de9ba98b | 1406 | value |= w->off_val << w->shift; |
b22ead2a | 1407 | |
ce0fc93a | 1408 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1409 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1410 | w->name, reg, value, mask); | |
81628103 | 1411 | |
68f89ad8 | 1412 | /* Check for events */ |
95dd5cd6 LPC |
1413 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1414 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1415 | } |
1416 | ||
1417 | if (reg >= 0) { | |
29376bc7 MB |
1418 | /* Any widget will do, they should all be updating the |
1419 | * same register. | |
1420 | */ | |
29376bc7 | 1421 | |
ce0fc93a | 1422 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1423 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1424 | value, mask, reg, card->pop_time); |
1425 | pop_wait(card->pop_time); | |
ce0fc93a | 1426 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1427 | } |
1428 | ||
81628103 | 1429 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1430 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1431 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1432 | } |
b22ead2a | 1433 | } |
42aa3418 | 1434 | |
b22ead2a MB |
1435 | /* Apply a DAPM power sequence. |
1436 | * | |
1437 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1438 | * order to minimise the number of writes to the device required | |
1439 | * multiple widgets will be updated in a single write where possible. | |
1440 | * Currently anything that requires more than a single write is not | |
1441 | * handled. | |
1442 | */ | |
95dd5cd6 LPC |
1443 | static void dapm_seq_run(struct snd_soc_card *card, |
1444 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1445 | { |
1446 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1447 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1448 | LIST_HEAD(pending); |
1449 | int cur_sort = -1; | |
20e4859d | 1450 | int cur_subseq = -1; |
b22ead2a | 1451 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1452 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1453 | int ret, i; |
828a842f MB |
1454 | int *sort; |
1455 | ||
1456 | if (power_up) | |
1457 | sort = dapm_up_seq; | |
1458 | else | |
1459 | sort = dapm_down_seq; | |
163cac06 | 1460 | |
b22ead2a MB |
1461 | list_for_each_entry_safe(w, n, list, power_list) { |
1462 | ret = 0; | |
1463 | ||
1464 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1465 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1466 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1467 | if (!list_empty(&pending)) |
95dd5cd6 | 1468 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1469 | |
474b62d6 MB |
1470 | if (cur_dapm && cur_dapm->seq_notifier) { |
1471 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1472 | if (sort[i] == cur_sort) | |
1473 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1474 | i, |
1475 | cur_subseq); | |
474b62d6 MB |
1476 | } |
1477 | ||
eb270e98 MB |
1478 | if (cur_dapm && w->dapm != cur_dapm) |
1479 | soc_dapm_async_complete(cur_dapm); | |
1480 | ||
b22ead2a MB |
1481 | INIT_LIST_HEAD(&pending); |
1482 | cur_sort = -1; | |
b0b3e6f8 | 1483 | cur_subseq = INT_MIN; |
b22ead2a | 1484 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1485 | cur_dapm = NULL; |
b22ead2a MB |
1486 | } |
1487 | ||
163cac06 MB |
1488 | switch (w->id) { |
1489 | case snd_soc_dapm_pre: | |
1490 | if (!w->event) | |
b22ead2a MB |
1491 | list_for_each_entry_safe_continue(w, n, list, |
1492 | power_list); | |
163cac06 | 1493 | |
b22ead2a | 1494 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1495 | ret = w->event(w, |
1496 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1497 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1498 | ret = w->event(w, |
1499 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1500 | break; |
1501 | ||
1502 | case snd_soc_dapm_post: | |
1503 | if (!w->event) | |
b22ead2a MB |
1504 | list_for_each_entry_safe_continue(w, n, list, |
1505 | power_list); | |
163cac06 | 1506 | |
b22ead2a | 1507 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1508 | ret = w->event(w, |
1509 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1510 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1511 | ret = w->event(w, |
1512 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1513 | break; |
1514 | ||
b22ead2a | 1515 | default: |
81628103 MB |
1516 | /* Queue it up for application */ |
1517 | cur_sort = sort[w->id]; | |
20e4859d | 1518 | cur_subseq = w->subseq; |
81628103 | 1519 | cur_reg = w->reg; |
7be31be8 | 1520 | cur_dapm = w->dapm; |
81628103 MB |
1521 | list_move(&w->power_list, &pending); |
1522 | break; | |
163cac06 | 1523 | } |
b22ead2a MB |
1524 | |
1525 | if (ret < 0) | |
f7d41ae8 | 1526 | dev_err(w->dapm->dev, |
30a6a1a4 | 1527 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1528 | } |
b22ead2a MB |
1529 | |
1530 | if (!list_empty(&pending)) | |
95dd5cd6 | 1531 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1532 | |
1533 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1534 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1535 | if (sort[i] == cur_sort) | |
1536 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1537 | i, cur_subseq); |
474b62d6 | 1538 | } |
eb270e98 MB |
1539 | |
1540 | list_for_each_entry(d, &card->dapm_list, list) { | |
1541 | soc_dapm_async_complete(d); | |
1542 | } | |
42aa3418 MB |
1543 | } |
1544 | ||
95dd5cd6 | 1545 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1546 | { |
95dd5cd6 | 1547 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1548 | struct snd_soc_dapm_widget_list *wlist; |
1549 | struct snd_soc_dapm_widget *w = NULL; | |
1550 | unsigned int wi; | |
97404f2e MB |
1551 | int ret; |
1552 | ||
57295073 | 1553 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1554 | return; |
1555 | ||
e84357f7 | 1556 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1557 | |
ce6cfaf1 LPC |
1558 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1559 | w = wlist->widgets[wi]; | |
1560 | ||
1561 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1562 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1563 | if (ret != 0) | |
95dd5cd6 | 1564 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1565 | w->name, ret); |
1566 | } | |
97404f2e MB |
1567 | } |
1568 | ||
ce6cfaf1 LPC |
1569 | if (!w) |
1570 | return; | |
1571 | ||
ce0fc93a LPC |
1572 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1573 | update->val); | |
97404f2e | 1574 | if (ret < 0) |
95dd5cd6 | 1575 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1576 | w->name, ret); |
97404f2e | 1577 | |
ce6cfaf1 LPC |
1578 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1579 | w = wlist->widgets[wi]; | |
1580 | ||
1581 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1582 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1583 | if (ret != 0) | |
95dd5cd6 | 1584 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1585 | w->name, ret); |
1586 | } | |
97404f2e MB |
1587 | } |
1588 | } | |
1589 | ||
9d0624a7 MB |
1590 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1591 | * they're changing state. | |
1592 | */ | |
1593 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1594 | { | |
1595 | struct snd_soc_dapm_context *d = data; | |
1596 | int ret; | |
1597 | ||
56fba41f MB |
1598 | /* If we're off and we're not supposed to be go into STANDBY */ |
1599 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1600 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1601 | if (d->dev) |
1602 | pm_runtime_get_sync(d->dev); | |
1603 | ||
9d0624a7 MB |
1604 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1605 | if (ret != 0) | |
1606 | dev_err(d->dev, | |
30a6a1a4 | 1607 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1608 | } |
1609 | ||
ce85a4d7 LPC |
1610 | /* Prepare for a transition to ON or away from ON */ |
1611 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1612 | d->bias_level != SND_SOC_BIAS_ON) || | |
1613 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1614 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1615 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1616 | if (ret != 0) | |
1617 | dev_err(d->dev, | |
30a6a1a4 | 1618 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1619 | } |
1620 | } | |
1621 | ||
1622 | /* Async callback run prior to DAPM sequences - brings to their final | |
1623 | * state. | |
1624 | */ | |
1625 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1626 | { | |
1627 | struct snd_soc_dapm_context *d = data; | |
1628 | int ret; | |
1629 | ||
1630 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1631 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1632 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1633 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1634 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1635 | if (ret != 0) | |
30a6a1a4 | 1636 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1637 | ret); |
1638 | } | |
97404f2e | 1639 | |
9d0624a7 | 1640 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1641 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1642 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1643 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1644 | if (ret != 0) | |
30a6a1a4 LG |
1645 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1646 | ret); | |
f1aac484 MB |
1647 | |
1648 | if (d->dev) | |
fb644e9c | 1649 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1650 | } |
1651 | ||
1652 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1653 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1654 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1655 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1656 | if (ret != 0) | |
30a6a1a4 | 1657 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1658 | ret); |
1659 | } | |
1660 | } | |
97404f2e | 1661 | |
fe4fda5d MB |
1662 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1663 | bool power, bool connect) | |
1664 | { | |
1665 | /* If a connection is being made or broken then that update | |
1666 | * will have marked the peer dirty, otherwise the widgets are | |
1667 | * not connected and this update has no impact. */ | |
1668 | if (!connect) | |
1669 | return; | |
1670 | ||
1671 | /* If the peer is already in the state we're moving to then we | |
1672 | * won't have an impact on it. */ | |
1673 | if (power != peer->power) | |
75c1f891 | 1674 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1675 | } |
1676 | ||
05623c43 MB |
1677 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1678 | struct list_head *up_list, | |
1679 | struct list_head *down_list) | |
1680 | { | |
db432b41 MB |
1681 | struct snd_soc_dapm_path *path; |
1682 | ||
05623c43 MB |
1683 | if (w->power == power) |
1684 | return; | |
1685 | ||
1686 | trace_snd_soc_dapm_widget_power(w, power); | |
1687 | ||
db432b41 | 1688 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1689 | * also. |
db432b41 | 1690 | */ |
e63bfd45 | 1691 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1692 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1693 | ||
6dd98b0a LPC |
1694 | /* Supplies can't affect their outputs, only their inputs */ |
1695 | if (!w->is_supply) { | |
e63bfd45 | 1696 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1697 | dapm_widget_set_peer_power(path->sink, power, |
1698 | path->connect); | |
db432b41 MB |
1699 | } |
1700 | ||
05623c43 MB |
1701 | if (power) |
1702 | dapm_seq_insert(w, up_list, true); | |
1703 | else | |
1704 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1705 | } |
1706 | ||
7c81beb0 MB |
1707 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1708 | struct list_head *up_list, | |
1709 | struct list_head *down_list) | |
1710 | { | |
7c81beb0 MB |
1711 | int power; |
1712 | ||
1713 | switch (w->id) { | |
1714 | case snd_soc_dapm_pre: | |
1715 | dapm_seq_insert(w, down_list, false); | |
1716 | break; | |
1717 | case snd_soc_dapm_post: | |
1718 | dapm_seq_insert(w, up_list, true); | |
1719 | break; | |
1720 | ||
1721 | default: | |
d805002b | 1722 | power = dapm_widget_power_check(w); |
7c81beb0 | 1723 | |
05623c43 | 1724 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1725 | break; |
1726 | } | |
1727 | } | |
1728 | ||
86dbf2ac LPC |
1729 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1730 | { | |
1731 | if (dapm->idle_bias_off) | |
1732 | return true; | |
1733 | ||
1734 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1735 | case SNDRV_CTL_POWER_D3hot: | |
1736 | case SNDRV_CTL_POWER_D3cold: | |
1737 | return dapm->suspend_bias_off; | |
1738 | default: | |
1739 | break; | |
1740 | } | |
1741 | ||
1742 | return false; | |
1743 | } | |
1744 | ||
2b97eabc RP |
1745 | /* |
1746 | * Scan each dapm widget for complete audio path. | |
1747 | * A complete path is a route that has valid endpoints i.e.:- | |
1748 | * | |
1749 | * o DAC to output pin. | |
1750 | * o Input Pin to ADC. | |
1751 | * o Input pin to Output pin (bypass, sidetone) | |
1752 | * o DAC to ADC (loopback). | |
1753 | */ | |
95dd5cd6 | 1754 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1755 | { |
1756 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1757 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1758 | LIST_HEAD(up_list); |
1759 | LIST_HEAD(down_list); | |
2955b47d | 1760 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1761 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1762 | |
f9fa2b18 MB |
1763 | lockdep_assert_held(&card->dapm_mutex); |
1764 | ||
84e90930 MB |
1765 | trace_snd_soc_dapm_start(card); |
1766 | ||
56fba41f | 1767 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1768 | if (dapm_idle_bias_off(d)) |
497098be MB |
1769 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1770 | else | |
1771 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1772 | } |
7be31be8 | 1773 | |
6c120e19 | 1774 | dapm_reset(card); |
9b8a83b2 | 1775 | |
6d3ddc81 | 1776 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1777 | * lists indicating if they should be powered up or down. We |
1778 | * only check widgets that have been flagged as dirty but note | |
1779 | * that new widgets may be added to the dirty list while we | |
1780 | * iterate. | |
6d3ddc81 | 1781 | */ |
db432b41 | 1782 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1783 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1784 | } |
1785 | ||
f9de6d74 | 1786 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1787 | switch (w->id) { |
1788 | case snd_soc_dapm_pre: | |
1789 | case snd_soc_dapm_post: | |
1790 | /* These widgets always need to be powered */ | |
1791 | break; | |
1792 | default: | |
1793 | list_del_init(&w->dirty); | |
1794 | break; | |
1795 | } | |
db432b41 | 1796 | |
39eb5fd1 | 1797 | if (w->new_power) { |
f9de6d74 MB |
1798 | d = w->dapm; |
1799 | ||
1800 | /* Supplies and micbiases only bring the | |
1801 | * context up to STANDBY as unless something | |
1802 | * else is active and passing audio they | |
afe62367 MB |
1803 | * generally don't require full power. Signal |
1804 | * generators are virtual pins and have no | |
1805 | * power impact themselves. | |
f9de6d74 MB |
1806 | */ |
1807 | switch (w->id) { | |
afe62367 | 1808 | case snd_soc_dapm_siggen: |
da83fea6 | 1809 | case snd_soc_dapm_vmid: |
afe62367 | 1810 | break; |
f9de6d74 | 1811 | case snd_soc_dapm_supply: |
62ea874a | 1812 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1813 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1814 | case snd_soc_dapm_micbias: |
1815 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1816 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1817 | break; | |
1818 | default: | |
1819 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1820 | break; | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | } | |
1825 | ||
85a843c5 MB |
1826 | /* Force all contexts in the card to the same bias state if |
1827 | * they're not ground referenced. | |
1828 | */ | |
56fba41f | 1829 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1830 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1831 | if (d->target_bias_level > bias) |
1832 | bias = d->target_bias_level; | |
52ba67bf | 1833 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1834 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1835 | d->target_bias_level = bias; |
52ba67bf | 1836 | |
de02d078 | 1837 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1838 | |
17282ba4 XX |
1839 | /* Run card bias changes at first */ |
1840 | dapm_pre_sequence_async(&card->dapm, 0); | |
1841 | /* Run other bias changes in parallel */ | |
1842 | list_for_each_entry(d, &card->dapm_list, list) { | |
1843 | if (d != &card->dapm) | |
1844 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1845 | &async_domain); | |
1846 | } | |
9d0624a7 | 1847 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1848 | |
cf1f7c6e | 1849 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1850 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1851 | } |
1852 | ||
cf1f7c6e | 1853 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1854 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1855 | } |
1856 | ||
6d3ddc81 | 1857 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1858 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1859 | |
95dd5cd6 | 1860 | dapm_widget_update(card); |
97404f2e | 1861 | |
6d3ddc81 | 1862 | /* Now power up. */ |
95dd5cd6 | 1863 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1864 | |
9d0624a7 | 1865 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1866 | list_for_each_entry(d, &card->dapm_list, list) { |
1867 | if (d != &card->dapm) | |
1868 | async_schedule_domain(dapm_post_sequence_async, d, | |
1869 | &async_domain); | |
1870 | } | |
9d0624a7 | 1871 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1872 | /* Run card bias changes at last */ |
1873 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1874 | |
8078d87f LG |
1875 | /* do we need to notify any clients that DAPM event is complete */ |
1876 | list_for_each_entry(d, &card->dapm_list, list) { | |
1877 | if (d->stream_event) | |
1878 | d->stream_event(d, event); | |
1879 | } | |
1880 | ||
95dd5cd6 | 1881 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1882 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1883 | pop_wait(card->pop_time); |
cb507e7e | 1884 | |
84e90930 MB |
1885 | trace_snd_soc_dapm_done(card); |
1886 | ||
42aa3418 | 1887 | return 0; |
2b97eabc RP |
1888 | } |
1889 | ||
79fb9387 | 1890 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1891 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1892 | char __user *user_buf, | |
1893 | size_t count, loff_t *ppos) | |
1894 | { | |
1895 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1896 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 1897 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
1898 | char *buf; |
1899 | int in, out; | |
1900 | ssize_t ret; | |
1901 | struct snd_soc_dapm_path *p = NULL; | |
1902 | ||
1903 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1904 | if (!buf) | |
1905 | return -ENOMEM; | |
1906 | ||
e50b1e06 LPC |
1907 | mutex_lock(&card->dapm_mutex); |
1908 | ||
c1862c8b LPC |
1909 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1910 | if (w->is_supply) { | |
1911 | in = 0; | |
1912 | out = 0; | |
1913 | } else { | |
1914 | in = is_connected_input_ep(w, NULL); | |
1915 | out = is_connected_output_ep(w, NULL); | |
1916 | } | |
79fb9387 | 1917 | |
f13ebada MB |
1918 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1919 | w->name, w->power ? "On" : "Off", | |
1920 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1921 | |
d033c36a MB |
1922 | if (w->reg >= 0) |
1923 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1924 | " - R%d(0x%x) mask 0x%x", |
1925 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1926 | |
1927 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1928 | ||
3eef08ba MB |
1929 | if (w->sname) |
1930 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1931 | w->sname, | |
1932 | w->active ? "active" : "inactive"); | |
79fb9387 | 1933 | |
a3423b02 LPC |
1934 | snd_soc_dapm_for_each_direction(dir) { |
1935 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
1936 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
1937 | if (p->connected && !p->connected(w, p->node[rdir])) | |
1938 | continue; | |
215edda3 | 1939 | |
a3423b02 LPC |
1940 | if (!p->connect) |
1941 | continue; | |
215edda3 | 1942 | |
79fb9387 | 1943 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
1944 | " %s \"%s\" \"%s\"\n", |
1945 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 1946 | p->name ? p->name : "static", |
a3423b02 LPC |
1947 | p->node[rdir]->name); |
1948 | } | |
79fb9387 MB |
1949 | } |
1950 | ||
e50b1e06 LPC |
1951 | mutex_unlock(&card->dapm_mutex); |
1952 | ||
79fb9387 MB |
1953 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
1954 | ||
1955 | kfree(buf); | |
1956 | return ret; | |
1957 | } | |
1958 | ||
1959 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1960 | .open = simple_open, |
79fb9387 | 1961 | .read = dapm_widget_power_read_file, |
6038f373 | 1962 | .llseek = default_llseek, |
79fb9387 MB |
1963 | }; |
1964 | ||
ef49e4fa MB |
1965 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1966 | size_t count, loff_t *ppos) | |
1967 | { | |
1968 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1969 | char *level; | |
1970 | ||
1971 | switch (dapm->bias_level) { | |
1972 | case SND_SOC_BIAS_ON: | |
1973 | level = "On\n"; | |
1974 | break; | |
1975 | case SND_SOC_BIAS_PREPARE: | |
1976 | level = "Prepare\n"; | |
1977 | break; | |
1978 | case SND_SOC_BIAS_STANDBY: | |
1979 | level = "Standby\n"; | |
1980 | break; | |
1981 | case SND_SOC_BIAS_OFF: | |
1982 | level = "Off\n"; | |
1983 | break; | |
1984 | default: | |
a6ed0608 | 1985 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1986 | level = "Unknown\n"; |
1987 | break; | |
1988 | } | |
1989 | ||
1990 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1991 | strlen(level)); | |
1992 | } | |
1993 | ||
1994 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1995 | .open = simple_open, |
ef49e4fa MB |
1996 | .read = dapm_bias_read_file, |
1997 | .llseek = default_llseek, | |
1998 | }; | |
1999 | ||
8eecaf62 LPC |
2000 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2001 | struct dentry *parent) | |
79fb9387 | 2002 | { |
79fb9387 MB |
2003 | struct dentry *d; |
2004 | ||
6553bf06 LPC |
2005 | if (!parent) |
2006 | return; | |
2007 | ||
8eecaf62 LPC |
2008 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2009 | ||
2010 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2011 | dev_warn(dapm->dev, |
30a6a1a4 | 2012 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2013 | return; |
8eecaf62 | 2014 | } |
79fb9387 | 2015 | |
ef49e4fa MB |
2016 | d = debugfs_create_file("bias_level", 0444, |
2017 | dapm->debugfs_dapm, dapm, | |
2018 | &dapm_bias_fops); | |
2019 | if (!d) | |
2020 | dev_warn(dapm->dev, | |
2021 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2022 | } |
ef49e4fa | 2023 | |
d5d1e0be LPC |
2024 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2025 | { | |
2026 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2027 | struct dentry *d; | |
79fb9387 | 2028 | |
d5d1e0be LPC |
2029 | if (!dapm->debugfs_dapm || !w->name) |
2030 | return; | |
2031 | ||
2032 | d = debugfs_create_file(w->name, 0444, | |
2033 | dapm->debugfs_dapm, w, | |
2034 | &dapm_widget_power_fops); | |
2035 | if (!d) | |
2036 | dev_warn(w->dapm->dev, | |
2037 | "ASoC: Failed to create %s debugfs file\n", | |
2038 | w->name); | |
79fb9387 | 2039 | } |
d5d1e0be | 2040 | |
6c45e126 LPC |
2041 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2042 | { | |
2043 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2044 | } | |
2045 | ||
79fb9387 | 2046 | #else |
8eecaf62 LPC |
2047 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2048 | struct dentry *parent) | |
79fb9387 MB |
2049 | { |
2050 | } | |
d5d1e0be LPC |
2051 | |
2052 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2053 | { | |
2054 | } | |
2055 | ||
6c45e126 LPC |
2056 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2057 | { | |
2058 | } | |
2059 | ||
79fb9387 MB |
2060 | #endif |
2061 | ||
4a201948 LPC |
2062 | /* |
2063 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2064 | * @path: The path to update | |
2065 | * @connect: The new connect state of the path. True if the path is connected, | |
2066 | * false if it is disconneted. | |
2067 | * @reason: The reason why the path changed (for debugging only) | |
2068 | */ | |
2069 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2070 | bool connect, const char *reason) | |
2071 | { | |
2072 | if (path->connect == connect) | |
2073 | return; | |
2074 | ||
2075 | path->connect = connect; | |
2076 | dapm_mark_dirty(path->source, reason); | |
2077 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2078 | dapm_path_invalidate(path); |
4a201948 LPC |
2079 | } |
2080 | ||
2b97eabc | 2081 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2082 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2083 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2084 | { |
2085 | struct snd_soc_dapm_path *path; | |
2086 | int found = 0; | |
4a201948 | 2087 | bool connect; |
2b97eabc | 2088 | |
f9fa2b18 MB |
2089 | lockdep_assert_held(&card->dapm_mutex); |
2090 | ||
2b97eabc | 2091 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2092 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2093 | found = 1; |
2094 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2095 | if (!(strcmp(path->name, e->texts[mux]))) |
2096 | connect = true; | |
2097 | else | |
2098 | connect = false; | |
2099 | ||
2100 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2101 | } |
2102 | ||
ce6cfaf1 | 2103 | if (found) |
95dd5cd6 | 2104 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2105 | |
618dae11 | 2106 | return found; |
2b97eabc | 2107 | } |
4edbb345 | 2108 | |
ce6cfaf1 | 2109 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2110 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2111 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2112 | { |
ce6cfaf1 | 2113 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2114 | int ret; |
2115 | ||
3cd04343 | 2116 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2117 | card->update = update; |
95dd5cd6 | 2118 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2119 | card->update = NULL; |
4edbb345 | 2120 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2121 | if (ret > 0) |
c3f48ae6 | 2122 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2123 | return ret; |
2124 | } | |
40f02cd9 | 2125 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2126 | |
1b075e3f | 2127 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2128 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2129 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2130 | { |
2131 | struct snd_soc_dapm_path *path; | |
2132 | int found = 0; | |
2133 | ||
f9fa2b18 MB |
2134 | lockdep_assert_held(&card->dapm_mutex); |
2135 | ||
2b97eabc | 2136 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2137 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2138 | found = 1; |
4a201948 | 2139 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2140 | } |
2141 | ||
ce6cfaf1 | 2142 | if (found) |
95dd5cd6 | 2143 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2144 | |
618dae11 | 2145 | return found; |
2b97eabc | 2146 | } |
4edbb345 | 2147 | |
ce6cfaf1 | 2148 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2149 | struct snd_kcontrol *kcontrol, int connect, |
2150 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2151 | { |
ce6cfaf1 | 2152 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2153 | int ret; |
2154 | ||
3cd04343 | 2155 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2156 | card->update = update; |
95dd5cd6 | 2157 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2158 | card->update = NULL; |
4edbb345 | 2159 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2160 | if (ret > 0) |
c3f48ae6 | 2161 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2162 | return ret; |
2163 | } | |
40f02cd9 | 2164 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2165 | |
b3c25fb7 LPC |
2166 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2167 | char *buf) | |
2b97eabc | 2168 | { |
b3c25fb7 | 2169 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2170 | struct snd_soc_dapm_widget *w; |
2171 | int count = 0; | |
2172 | char *state = "not set"; | |
2173 | ||
b3c25fb7 LPC |
2174 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2175 | if (w->dapm != dapm) | |
97c866de | 2176 | continue; |
2b97eabc RP |
2177 | |
2178 | /* only display widgets that burnm power */ | |
2179 | switch (w->id) { | |
2180 | case snd_soc_dapm_hp: | |
2181 | case snd_soc_dapm_mic: | |
2182 | case snd_soc_dapm_spk: | |
2183 | case snd_soc_dapm_line: | |
2184 | case snd_soc_dapm_micbias: | |
2185 | case snd_soc_dapm_dac: | |
2186 | case snd_soc_dapm_adc: | |
2187 | case snd_soc_dapm_pga: | |
d88429a6 | 2188 | case snd_soc_dapm_out_drv: |
2b97eabc | 2189 | case snd_soc_dapm_mixer: |
ca9c1aae | 2190 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2191 | case snd_soc_dapm_supply: |
62ea874a | 2192 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2193 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2194 | if (w->name) |
2195 | count += sprintf(buf + count, "%s: %s\n", | |
2196 | w->name, w->power ? "On":"Off"); | |
2197 | break; | |
2198 | default: | |
2199 | break; | |
2200 | } | |
2201 | } | |
2202 | ||
b3c25fb7 | 2203 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2204 | case SND_SOC_BIAS_ON: |
2205 | state = "On"; | |
2b97eabc | 2206 | break; |
0be9898a MB |
2207 | case SND_SOC_BIAS_PREPARE: |
2208 | state = "Prepare"; | |
2b97eabc | 2209 | break; |
0be9898a MB |
2210 | case SND_SOC_BIAS_STANDBY: |
2211 | state = "Standby"; | |
2b97eabc | 2212 | break; |
0be9898a MB |
2213 | case SND_SOC_BIAS_OFF: |
2214 | state = "Off"; | |
2b97eabc RP |
2215 | break; |
2216 | } | |
2217 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2218 | ||
2219 | return count; | |
2220 | } | |
2221 | ||
44ba2641 BC |
2222 | /* show dapm widget status in sys fs */ |
2223 | static ssize_t dapm_widget_show(struct device *dev, | |
2224 | struct device_attribute *attr, char *buf) | |
2225 | { | |
2226 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2227 | int i, count = 0; | |
2228 | ||
e50b1e06 LPC |
2229 | mutex_lock(&rtd->card->dapm_mutex); |
2230 | ||
44ba2641 | 2231 | for (i = 0; i < rtd->num_codecs; i++) { |
b3c25fb7 LPC |
2232 | struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; |
2233 | ||
2234 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2235 | } |
2236 | ||
e50b1e06 LPC |
2237 | mutex_unlock(&rtd->card->dapm_mutex); |
2238 | ||
44ba2641 BC |
2239 | return count; |
2240 | } | |
2241 | ||
2b97eabc RP |
2242 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2243 | ||
d29697dc TI |
2244 | struct attribute *soc_dapm_dev_attrs[] = { |
2245 | &dev_attr_dapm_widget.attr, | |
2246 | NULL | |
2247 | }; | |
2b97eabc | 2248 | |
8872293f LPC |
2249 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2250 | { | |
a3423b02 LPC |
2251 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2252 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2253 | list_del(&path->list_kcontrol); |
8872293f | 2254 | list_del(&path->list); |
8872293f LPC |
2255 | kfree(path); |
2256 | } | |
2257 | ||
b97e2698 LPC |
2258 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2259 | { | |
2260 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2261 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2262 | |
2263 | list_del(&w->list); | |
2264 | /* | |
2265 | * remove source and sink paths associated to this widget. | |
2266 | * While removing the path, remove reference to it from both | |
2267 | * source and sink widgets so that path is removed only once. | |
2268 | */ | |
a3423b02 LPC |
2269 | snd_soc_dapm_for_each_direction(dir) { |
2270 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2271 | dapm_free_path(p); | |
2272 | } | |
b97e2698 LPC |
2273 | |
2274 | kfree(w->kcontrols); | |
48068961 | 2275 | kfree_const(w->name); |
b97e2698 LPC |
2276 | kfree(w); |
2277 | } | |
2278 | ||
2b97eabc | 2279 | /* free all dapm widgets and resources */ |
ce6120cc | 2280 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2281 | { |
2282 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2283 | |
97c866de JN |
2284 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2285 | if (w->dapm != dapm) | |
2286 | continue; | |
b97e2698 | 2287 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2288 | } |
2b97eabc RP |
2289 | } |
2290 | ||
91a5fca4 LPC |
2291 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2292 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2293 | bool search_other_contexts) | |
a5302181 LG |
2294 | { |
2295 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2296 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2297 | |
97c866de | 2298 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2299 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2300 | if (w->dapm == dapm) |
2301 | return w; | |
2302 | else | |
2303 | fallback = w; | |
a5302181 LG |
2304 | } |
2305 | } | |
2306 | ||
91a5fca4 LPC |
2307 | if (search_other_contexts) |
2308 | return fallback; | |
2309 | ||
2310 | return NULL; | |
2311 | } | |
2312 | ||
2313 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2314 | const char *pin, int status) | |
2315 | { | |
2316 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2317 | ||
f9fa2b18 MB |
2318 | dapm_assert_locked(dapm); |
2319 | ||
91a5fca4 | 2320 | if (!w) { |
30a6a1a4 | 2321 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2322 | return -EINVAL; |
0d86733c MB |
2323 | } |
2324 | ||
92a99ea4 | 2325 | if (w->connected != status) { |
1a8b2d9d | 2326 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2327 | dapm_widget_invalidate_input_paths(w); |
2328 | dapm_widget_invalidate_output_paths(w); | |
2329 | } | |
1a8b2d9d | 2330 | |
91a5fca4 LPC |
2331 | w->connected = status; |
2332 | if (status == 0) | |
2333 | w->force = 0; | |
2334 | ||
2335 | return 0; | |
a5302181 LG |
2336 | } |
2337 | ||
2b97eabc | 2338 | /** |
3eb29dfb | 2339 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2340 | * @dapm: DAPM context |
2b97eabc RP |
2341 | * |
2342 | * Walks all dapm audio paths and powers widgets according to their | |
2343 | * stream or path usage. | |
2344 | * | |
3eb29dfb CK |
2345 | * Requires external locking. |
2346 | * | |
2b97eabc RP |
2347 | * Returns 0 for success. |
2348 | */ | |
3eb29dfb | 2349 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2350 | { |
4f4c0072 MB |
2351 | /* |
2352 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2353 | * silly DAPM runs during card startup. | |
2354 | */ | |
2355 | if (!dapm->card || !dapm->card->instantiated) | |
2356 | return 0; | |
2357 | ||
3eb29dfb CK |
2358 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2359 | } | |
2360 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2361 | ||
2362 | /** | |
2363 | * snd_soc_dapm_sync - scan and power dapm paths | |
2364 | * @dapm: DAPM context | |
2365 | * | |
2366 | * Walks all dapm audio paths and powers widgets according to their | |
2367 | * stream or path usage. | |
2368 | * | |
2369 | * Returns 0 for success. | |
2370 | */ | |
2371 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2372 | { | |
2373 | int ret; | |
2374 | ||
3cd04343 | 2375 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2376 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2377 | mutex_unlock(&dapm->card->dapm_mutex); |
2378 | return ret; | |
2b97eabc | 2379 | } |
a5302181 | 2380 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2381 | |
6dd98b0a LPC |
2382 | /* |
2383 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2384 | * @w: The widget for which to update the flags | |
2385 | * | |
2386 | * Some widgets have a dynamic category which depends on which neighbors they | |
2387 | * are connected to. This function update the category for these widgets. | |
2388 | * | |
2389 | * This function must be called whenever a path is added or removed to a widget. | |
2390 | */ | |
2391 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2392 | { | |
a3423b02 | 2393 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2394 | struct snd_soc_dapm_path *p; |
a3423b02 | 2395 | unsigned int ep; |
6dd98b0a LPC |
2396 | |
2397 | switch (w->id) { | |
2398 | case snd_soc_dapm_input: | |
86d75003 LPC |
2399 | /* On a fully routed card a input is never a source */ |
2400 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2401 | return; |
2402 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2403 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2404 | if (p->source->id == snd_soc_dapm_micbias || |
2405 | p->source->id == snd_soc_dapm_mic || | |
2406 | p->source->id == snd_soc_dapm_line || | |
2407 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2408 | ep = 0; |
6dd98b0a LPC |
2409 | break; |
2410 | } | |
2411 | } | |
2412 | break; | |
2413 | case snd_soc_dapm_output: | |
86d75003 LPC |
2414 | /* On a fully routed card a output is never a sink */ |
2415 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2416 | return; |
2417 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2418 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2419 | if (p->sink->id == snd_soc_dapm_spk || |
2420 | p->sink->id == snd_soc_dapm_hp || | |
2421 | p->sink->id == snd_soc_dapm_line || | |
2422 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2423 | ep = 0; |
6dd98b0a LPC |
2424 | break; |
2425 | } | |
2426 | } | |
2427 | break; | |
2428 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2429 | ep = 0; |
2430 | snd_soc_dapm_for_each_direction(dir) { | |
2431 | if (!list_empty(&w->edges[dir])) | |
2432 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2433 | } | |
6dd98b0a LPC |
2434 | break; |
2435 | default: | |
a3423b02 | 2436 | return; |
6dd98b0a | 2437 | } |
a3423b02 LPC |
2438 | |
2439 | w->is_ep = ep; | |
6dd98b0a LPC |
2440 | } |
2441 | ||
d714f97c LPC |
2442 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2443 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2444 | const char *control) | |
2445 | { | |
2446 | bool dynamic_source = false; | |
2447 | bool dynamic_sink = false; | |
2448 | ||
2449 | if (!control) | |
2450 | return 0; | |
2451 | ||
2452 | switch (source->id) { | |
2453 | case snd_soc_dapm_demux: | |
2454 | dynamic_source = true; | |
2455 | break; | |
2456 | default: | |
2457 | break; | |
2458 | } | |
2459 | ||
2460 | switch (sink->id) { | |
2461 | case snd_soc_dapm_mux: | |
2462 | case snd_soc_dapm_switch: | |
2463 | case snd_soc_dapm_mixer: | |
2464 | case snd_soc_dapm_mixer_named_ctl: | |
2465 | dynamic_sink = true; | |
2466 | break; | |
2467 | default: | |
2468 | break; | |
2469 | } | |
2470 | ||
2471 | if (dynamic_source && dynamic_sink) { | |
2472 | dev_err(dapm->dev, | |
2473 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2474 | source->name, control, sink->name); | |
2475 | return -EINVAL; | |
2476 | } else if (!dynamic_source && !dynamic_sink) { | |
2477 | dev_err(dapm->dev, | |
2478 | "Control not supported for path %s -> [%s] -> %s\n", | |
2479 | source->name, control, sink->name); | |
2480 | return -EINVAL; | |
2481 | } | |
2482 | ||
2483 | return 0; | |
2484 | } | |
2485 | ||
2553628e LPC |
2486 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2487 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2488 | const char *control, | |
2489 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2490 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2491 | { |
a3423b02 LPC |
2492 | struct snd_soc_dapm_widget *widgets[2]; |
2493 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2494 | struct snd_soc_dapm_path *path; |
2553628e | 2495 | int ret; |
2b97eabc | 2496 | |
e409dfbf LPC |
2497 | if (wsink->is_supply && !wsource->is_supply) { |
2498 | dev_err(dapm->dev, | |
2499 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2500 | wsource->name, wsink->name); | |
2501 | return -EINVAL; | |
2502 | } | |
2503 | ||
2504 | if (connected && !wsource->is_supply) { | |
2505 | dev_err(dapm->dev, | |
2506 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2507 | wsource->name, wsink->name); | |
2508 | return -EINVAL; | |
2509 | } | |
2510 | ||
2511 | if (wsource->is_supply && control) { | |
2512 | dev_err(dapm->dev, | |
2513 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2514 | wsource->name, control, wsink->name); | |
2515 | return -EINVAL; | |
2516 | } | |
2517 | ||
d714f97c LPC |
2518 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2519 | if (ret) | |
2520 | return ret; | |
2521 | ||
2b97eabc RP |
2522 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2523 | if (!path) | |
2524 | return -ENOMEM; | |
2525 | ||
a3423b02 LPC |
2526 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2527 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2528 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2529 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2530 | ||
2553628e | 2531 | path->connected = connected; |
2b97eabc | 2532 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2533 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2534 | |
c1862c8b LPC |
2535 | if (wsource->is_supply || wsink->is_supply) |
2536 | path->is_supply = 1; | |
2537 | ||
2b97eabc RP |
2538 | /* connect static paths */ |
2539 | if (control == NULL) { | |
2b97eabc | 2540 | path->connect = 1; |
5fe5b767 | 2541 | } else { |
d714f97c LPC |
2542 | switch (wsource->id) { |
2543 | case snd_soc_dapm_demux: | |
2544 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2545 | if (ret) | |
2546 | goto err; | |
2547 | break; | |
2548 | default: | |
2549 | break; | |
2550 | } | |
2551 | ||
5fe5b767 LPC |
2552 | switch (wsink->id) { |
2553 | case snd_soc_dapm_mux: | |
d714f97c | 2554 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2555 | if (ret != 0) |
2556 | goto err; | |
2557 | break; | |
2558 | case snd_soc_dapm_switch: | |
2559 | case snd_soc_dapm_mixer: | |
2560 | case snd_soc_dapm_mixer_named_ctl: | |
2561 | ret = dapm_connect_mixer(dapm, path, control); | |
2562 | if (ret != 0) | |
2563 | goto err; | |
2564 | break; | |
2565 | default: | |
d714f97c | 2566 | break; |
5fe5b767 | 2567 | } |
2b97eabc | 2568 | } |
fabd0384 | 2569 | |
5fe5b767 | 2570 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2571 | snd_soc_dapm_for_each_direction(dir) |
2572 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2573 | |
a3423b02 LPC |
2574 | snd_soc_dapm_for_each_direction(dir) { |
2575 | dapm_update_widget_flags(widgets[dir]); | |
2576 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2577 | } | |
5fe5b767 | 2578 | |
92a99ea4 LPC |
2579 | if (dapm->card->instantiated && path->connect) |
2580 | dapm_path_invalidate(path); | |
2581 | ||
2b97eabc | 2582 | return 0; |
2553628e LPC |
2583 | err: |
2584 | kfree(path); | |
2585 | return ret; | |
2586 | } | |
2b97eabc | 2587 | |
2553628e | 2588 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2589 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2590 | { |
2591 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2592 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2593 | const char *sink; | |
2594 | const char *source; | |
2595 | char prefixed_sink[80]; | |
2596 | char prefixed_source[80]; | |
94f99c87 | 2597 | const char *prefix; |
2553628e LPC |
2598 | int ret; |
2599 | ||
94f99c87 LPC |
2600 | prefix = soc_dapm_prefix(dapm); |
2601 | if (prefix) { | |
2553628e | 2602 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2603 | prefix, route->sink); |
2553628e LPC |
2604 | sink = prefixed_sink; |
2605 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2606 | prefix, route->source); |
2553628e LPC |
2607 | source = prefixed_source; |
2608 | } else { | |
2609 | sink = route->sink; | |
2610 | source = route->source; | |
2611 | } | |
2612 | ||
45a110a1 CK |
2613 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2614 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2615 | ||
2616 | if (wsink && wsource) | |
2617 | goto skip_search; | |
2618 | ||
2553628e LPC |
2619 | /* |
2620 | * find src and dest widgets over all widgets but favor a widget from | |
2621 | * current DAPM context | |
2622 | */ | |
2623 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2624 | if (!wsink && !(strcmp(w->name, sink))) { | |
2625 | wtsink = w; | |
70c75109 | 2626 | if (w->dapm == dapm) { |
2553628e | 2627 | wsink = w; |
70c75109 CK |
2628 | if (wsource) |
2629 | break; | |
2630 | } | |
2553628e LPC |
2631 | continue; |
2632 | } | |
2633 | if (!wsource && !(strcmp(w->name, source))) { | |
2634 | wtsource = w; | |
70c75109 | 2635 | if (w->dapm == dapm) { |
2553628e | 2636 | wsource = w; |
70c75109 CK |
2637 | if (wsink) |
2638 | break; | |
2639 | } | |
2553628e LPC |
2640 | } |
2641 | } | |
2642 | /* use widget from another DAPM context if not found from this */ | |
2643 | if (!wsink) | |
2644 | wsink = wtsink; | |
2645 | if (!wsource) | |
2646 | wsource = wtsource; | |
2647 | ||
2648 | if (wsource == NULL) { | |
2649 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2650 | route->source); | |
2651 | return -ENODEV; | |
2652 | } | |
2653 | if (wsink == NULL) { | |
2654 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2655 | route->sink); | |
2656 | return -ENODEV; | |
2657 | } | |
2658 | ||
45a110a1 CK |
2659 | skip_search: |
2660 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2661 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2662 | ||
2553628e LPC |
2663 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2664 | route->connected); | |
2665 | if (ret) | |
2666 | goto err; | |
2667 | ||
2668 | return 0; | |
2b97eabc | 2669 | err: |
30a6a1a4 | 2670 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2671 | source, route->control, sink); |
2b97eabc RP |
2672 | return ret; |
2673 | } | |
105f1c28 | 2674 | |
efcc3c61 MB |
2675 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2676 | const struct snd_soc_dapm_route *route) | |
2677 | { | |
6dd98b0a | 2678 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2679 | struct snd_soc_dapm_path *path, *p; |
2680 | const char *sink; | |
2681 | const char *source; | |
2682 | char prefixed_sink[80]; | |
2683 | char prefixed_source[80]; | |
94f99c87 | 2684 | const char *prefix; |
efcc3c61 MB |
2685 | |
2686 | if (route->control) { | |
2687 | dev_err(dapm->dev, | |
30a6a1a4 | 2688 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2689 | return -EINVAL; |
2690 | } | |
2691 | ||
94f99c87 LPC |
2692 | prefix = soc_dapm_prefix(dapm); |
2693 | if (prefix) { | |
efcc3c61 | 2694 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2695 | prefix, route->sink); |
efcc3c61 MB |
2696 | sink = prefixed_sink; |
2697 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2698 | prefix, route->source); |
efcc3c61 MB |
2699 | source = prefixed_source; |
2700 | } else { | |
2701 | sink = route->sink; | |
2702 | source = route->source; | |
2703 | } | |
2704 | ||
2705 | path = NULL; | |
2706 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2707 | if (strcmp(p->source->name, source) != 0) | |
2708 | continue; | |
2709 | if (strcmp(p->sink->name, sink) != 0) | |
2710 | continue; | |
2711 | path = p; | |
2712 | break; | |
2713 | } | |
2714 | ||
2715 | if (path) { | |
6dd98b0a LPC |
2716 | wsource = path->source; |
2717 | wsink = path->sink; | |
2718 | ||
2719 | dapm_mark_dirty(wsource, "Route removed"); | |
2720 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2721 | if (path->connect) |
2722 | dapm_path_invalidate(path); | |
efcc3c61 | 2723 | |
8872293f | 2724 | dapm_free_path(path); |
6dd98b0a LPC |
2725 | |
2726 | /* Update any path related flags */ | |
2727 | dapm_update_widget_flags(wsource); | |
2728 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2729 | } else { |
30a6a1a4 | 2730 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2731 | source, sink); |
2732 | } | |
2733 | ||
2734 | return 0; | |
2735 | } | |
2736 | ||
105f1c28 MB |
2737 | /** |
2738 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2739 | * @dapm: DAPM context |
105f1c28 MB |
2740 | * @route: audio routes |
2741 | * @num: number of routes | |
2742 | * | |
2743 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2744 | * the widget receiving the audio signal, whilst the source is the sender | |
2745 | * of the audio signal. | |
2746 | * | |
2747 | * Returns 0 for success else error. On error all resources can be freed | |
2748 | * with a call to snd_soc_card_free(). | |
2749 | */ | |
ce6120cc | 2750 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2751 | const struct snd_soc_dapm_route *route, int num) |
2752 | { | |
62d4a4b9 | 2753 | int i, r, ret = 0; |
105f1c28 | 2754 | |
a73fb2df | 2755 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2756 | for (i = 0; i < num; i++) { |
a4e9154c | 2757 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2758 | if (r < 0) { |
30a6a1a4 LG |
2759 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2760 | route->source, | |
2761 | route->control ? route->control : "direct", | |
2762 | route->sink); | |
62d4a4b9 | 2763 | ret = r; |
105f1c28 MB |
2764 | } |
2765 | route++; | |
2766 | } | |
a73fb2df | 2767 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2768 | |
60884c27 | 2769 | return ret; |
105f1c28 MB |
2770 | } |
2771 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2772 | ||
efcc3c61 MB |
2773 | /** |
2774 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2775 | * @dapm: DAPM context | |
2776 | * @route: audio routes | |
2777 | * @num: number of routes | |
2778 | * | |
2779 | * Removes routes from the DAPM context. | |
2780 | */ | |
2781 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2782 | const struct snd_soc_dapm_route *route, int num) | |
2783 | { | |
2784 | int i, ret = 0; | |
2785 | ||
2786 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2787 | for (i = 0; i < num; i++) { | |
2788 | snd_soc_dapm_del_route(dapm, route); | |
2789 | route++; | |
2790 | } | |
2791 | mutex_unlock(&dapm->card->dapm_mutex); | |
2792 | ||
2793 | return ret; | |
2794 | } | |
2795 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2796 | ||
bf3a9e13 MB |
2797 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2798 | const struct snd_soc_dapm_route *route) | |
2799 | { | |
2800 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2801 | route->source, | |
2802 | true); | |
2803 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2804 | route->sink, | |
2805 | true); | |
2806 | struct snd_soc_dapm_path *path; | |
2807 | int count = 0; | |
2808 | ||
2809 | if (!source) { | |
30a6a1a4 | 2810 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2811 | route->source); |
2812 | return -ENODEV; | |
2813 | } | |
2814 | ||
2815 | if (!sink) { | |
30a6a1a4 | 2816 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2817 | route->sink); |
2818 | return -ENODEV; | |
2819 | } | |
2820 | ||
2821 | if (route->control || route->connected) | |
30a6a1a4 | 2822 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2823 | route->source, route->sink); |
2824 | ||
e63bfd45 | 2825 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
2826 | if (path->sink == sink) { |
2827 | path->weak = 1; | |
2828 | count++; | |
2829 | } | |
2830 | } | |
2831 | ||
2832 | if (count == 0) | |
30a6a1a4 | 2833 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2834 | route->source, route->sink); |
2835 | if (count > 1) | |
30a6a1a4 | 2836 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2837 | count, route->source, route->sink); |
2838 | ||
2839 | return 0; | |
2840 | } | |
2841 | ||
2842 | /** | |
2843 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2844 | * @dapm: DAPM context | |
2845 | * @route: audio routes | |
2846 | * @num: number of routes | |
2847 | * | |
2848 | * Mark existing routes matching those specified in the passed array | |
2849 | * as being weak, meaning that they are ignored for the purpose of | |
2850 | * power decisions. The main intended use case is for sidetone paths | |
2851 | * which couple audio between other independent paths if they are both | |
2852 | * active in order to make the combination work better at the user | |
2853 | * level but which aren't intended to be "used". | |
2854 | * | |
2855 | * Note that CODEC drivers should not use this as sidetone type paths | |
2856 | * can frequently also be used as bypass paths. | |
2857 | */ | |
2858 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2859 | const struct snd_soc_dapm_route *route, int num) | |
2860 | { | |
2861 | int i, err; | |
2862 | int ret = 0; | |
2863 | ||
a73fb2df | 2864 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2865 | for (i = 0; i < num; i++) { |
2866 | err = snd_soc_dapm_weak_route(dapm, route); | |
2867 | if (err) | |
2868 | ret = err; | |
2869 | route++; | |
2870 | } | |
a73fb2df | 2871 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2872 | |
2873 | return ret; | |
2874 | } | |
2875 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2876 | ||
2b97eabc RP |
2877 | /** |
2878 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 2879 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
2880 | * |
2881 | * Checks the codec for any new dapm widgets and creates them if found. | |
2882 | * | |
2883 | * Returns 0 for success. | |
2884 | */ | |
824ef826 | 2885 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2886 | { |
2887 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2888 | unsigned int val; |
2b97eabc | 2889 | |
95dd5cd6 | 2890 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2891 | |
95dd5cd6 | 2892 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2893 | { |
2894 | if (w->new) | |
2895 | continue; | |
2896 | ||
fad59888 SW |
2897 | if (w->num_kcontrols) { |
2898 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2899 | sizeof(struct snd_kcontrol *), | |
2900 | GFP_KERNEL); | |
a73fb2df | 2901 | if (!w->kcontrols) { |
95dd5cd6 | 2902 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2903 | return -ENOMEM; |
a73fb2df | 2904 | } |
fad59888 SW |
2905 | } |
2906 | ||
2b97eabc RP |
2907 | switch(w->id) { |
2908 | case snd_soc_dapm_switch: | |
2909 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2910 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2911 | dapm_new_mixer(w); |
2b97eabc RP |
2912 | break; |
2913 | case snd_soc_dapm_mux: | |
d714f97c | 2914 | case snd_soc_dapm_demux: |
4b80b8c2 | 2915 | dapm_new_mux(w); |
2b97eabc | 2916 | break; |
2b97eabc | 2917 | case snd_soc_dapm_pga: |
d88429a6 | 2918 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2919 | dapm_new_pga(w); |
2b97eabc | 2920 | break; |
c6615082 NO |
2921 | case snd_soc_dapm_dai_link: |
2922 | dapm_new_dai_link(w); | |
2923 | break; | |
7ca3a18b | 2924 | default: |
2b97eabc RP |
2925 | break; |
2926 | } | |
b66a70d5 MB |
2927 | |
2928 | /* Read the initial power state from the device */ | |
2929 | if (w->reg >= 0) { | |
ce0fc93a | 2930 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2931 | val = val >> w->shift; |
de9ba98b LPC |
2932 | val &= w->mask; |
2933 | if (val == w->on_val) | |
b66a70d5 MB |
2934 | w->power = 1; |
2935 | } | |
2936 | ||
2b97eabc | 2937 | w->new = 1; |
d5d1e0be | 2938 | |
7508b12a | 2939 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2940 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2941 | } |
2942 | ||
95dd5cd6 LPC |
2943 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2944 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2945 | return 0; |
2946 | } | |
2947 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2948 | ||
2949 | /** | |
2950 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2951 | * @kcontrol: mixer control | |
ac11a2b3 | 2952 | * @ucontrol: control element information |
2b97eabc RP |
2953 | * |
2954 | * Callback to get the value of a dapm mixer control. | |
2955 | * | |
2956 | * Returns 0 for success. | |
2957 | */ | |
2958 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2959 | struct snd_ctl_elem_value *ucontrol) | |
2960 | { | |
ce0fc93a LPC |
2961 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2962 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2963 | struct soc_mixer_control *mc = |
2964 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2965 | int reg = mc->reg; |
815ecf8d | 2966 | unsigned int shift = mc->shift; |
4eaa9819 | 2967 | int max = mc->max; |
815ecf8d | 2968 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2969 | unsigned int invert = mc->invert; |
57295073 | 2970 | unsigned int val; |
ce0fc93a | 2971 | int ret = 0; |
da602ab8 BT |
2972 | |
2973 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2974 | dev_warn(dapm->dev, |
30a6a1a4 | 2975 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2976 | kcontrol->id.name); |
2b97eabc | 2977 | |
57295073 | 2978 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2979 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2980 | ret = soc_dapm_read(dapm, reg, &val); | |
2981 | val = (val >> shift) & mask; | |
2982 | } else { | |
57295073 | 2983 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2984 | } |
57295073 LPC |
2985 | mutex_unlock(&card->dapm_mutex); |
2986 | ||
da602ab8 | 2987 | if (invert) |
57295073 LPC |
2988 | ucontrol->value.integer.value[0] = max - val; |
2989 | else | |
2990 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2991 | |
ce0fc93a | 2992 | return ret; |
2b97eabc RP |
2993 | } |
2994 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2995 | ||
2996 | /** | |
2997 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2998 | * @kcontrol: mixer control | |
ac11a2b3 | 2999 | * @ucontrol: control element information |
2b97eabc RP |
3000 | * |
3001 | * Callback to set the value of a dapm mixer control. | |
3002 | * | |
3003 | * Returns 0 for success. | |
3004 | */ | |
3005 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3006 | struct snd_ctl_elem_value *ucontrol) | |
3007 | { | |
ce0fc93a LPC |
3008 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3009 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3010 | struct soc_mixer_control *mc = |
3011 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3012 | int reg = mc->reg; |
815ecf8d | 3013 | unsigned int shift = mc->shift; |
4eaa9819 | 3014 | int max = mc->max; |
815ecf8d JS |
3015 | unsigned int mask = (1 << fls(max)) - 1; |
3016 | unsigned int invert = mc->invert; | |
e9cf7049 | 3017 | unsigned int val; |
18626c7e | 3018 | int connect, change, reg_change = 0; |
97404f2e | 3019 | struct snd_soc_dapm_update update; |
52765976 | 3020 | int ret = 0; |
2b97eabc | 3021 | |
da602ab8 | 3022 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3023 | dev_warn(dapm->dev, |
30a6a1a4 | 3024 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3025 | kcontrol->id.name); |
3026 | ||
2b97eabc | 3027 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3028 | connect = !!val; |
2b97eabc RP |
3029 | |
3030 | if (invert) | |
a7a4ac86 | 3031 | val = max - val; |
2b97eabc | 3032 | |
3cd04343 | 3033 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3034 | |
249ce138 | 3035 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3036 | |
18626c7e JN |
3037 | if (reg != SND_SOC_NOPM) { |
3038 | mask = mask << shift; | |
3039 | val = val << shift; | |
3040 | ||
ce0fc93a | 3041 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3042 | } |
3043 | ||
3044 | if (change || reg_change) { | |
3045 | if (reg_change) { | |
3046 | update.kcontrol = kcontrol; | |
3047 | update.reg = reg; | |
3048 | update.mask = mask; | |
3049 | update.val = val; | |
3050 | card->update = &update; | |
249ce138 | 3051 | } |
18626c7e | 3052 | change |= reg_change; |
97404f2e | 3053 | |
52765976 | 3054 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3055 | |
564c6504 | 3056 | card->update = NULL; |
283375ce MB |
3057 | } |
3058 | ||
a73fb2df | 3059 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3060 | |
3061 | if (ret > 0) | |
3062 | soc_dpcm_runtime_update(card); | |
3063 | ||
56a67834 | 3064 | return change; |
2b97eabc RP |
3065 | } |
3066 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3067 | ||
3068 | /** | |
3069 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3070 | * @kcontrol: mixer control | |
ac11a2b3 | 3071 | * @ucontrol: control element information |
2b97eabc RP |
3072 | * |
3073 | * Callback to get the value of a dapm enumerated double mixer control. | |
3074 | * | |
3075 | * Returns 0 for success. | |
3076 | */ | |
3077 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3078 | struct snd_ctl_elem_value *ucontrol) | |
3079 | { | |
ce0fc93a | 3080 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3081 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3082 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3083 | unsigned int reg_val, val; |
52765976 | 3084 | |
561ed680 CK |
3085 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3086 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3087 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3088 | if (ret) { |
3089 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3090 | return ret; |
964a0b89 | 3091 | } |
69128316 | 3092 | } else { |
236aaa68 | 3093 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3094 | } |
561ed680 | 3095 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3096 | |
2e72f8e3 | 3097 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3098 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3099 | if (e->shift_l != e->shift_r) { |
3100 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3101 | val = snd_soc_enum_val_to_item(e, val); |
3102 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3103 | } |
3104 | ||
69128316 | 3105 | return 0; |
2e72f8e3 | 3106 | } |
2b97eabc | 3107 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3108 | |
3109 | /** | |
2b97eabc | 3110 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3111 | * @kcontrol: mixer control |
3112 | * @ucontrol: control element information | |
3113 | * | |
2b97eabc | 3114 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3115 | * |
3116 | * Returns 0 for success. | |
3117 | */ | |
2b97eabc | 3118 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3119 | struct snd_ctl_elem_value *ucontrol) |
3120 | { | |
ce0fc93a LPC |
3121 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3122 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3123 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3124 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3125 | unsigned int val, change, reg_change = 0; |
46f5822f | 3126 | unsigned int mask; |
97404f2e | 3127 | struct snd_soc_dapm_update update; |
52765976 | 3128 | int ret = 0; |
2e72f8e3 | 3129 | |
3727b496 | 3130 | if (item[0] >= e->items) |
2e72f8e3 | 3131 | return -EINVAL; |
3727b496 LPC |
3132 | |
3133 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3134 | mask = e->mask << e->shift_l; |
3135 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3136 | if (item[1] > e->items) |
2e72f8e3 | 3137 | return -EINVAL; |
3727b496 | 3138 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
3139 | mask |= e->mask << e->shift_r; |
3140 | } | |
3141 | ||
3cd04343 | 3142 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3143 | |
561ed680 CK |
3144 | change = dapm_kcontrol_set_value(kcontrol, val); |
3145 | ||
236aaa68 | 3146 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3147 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3148 | |
561ed680 CK |
3149 | if (change || reg_change) { |
3150 | if (reg_change) { | |
236aaa68 LPC |
3151 | update.kcontrol = kcontrol; |
3152 | update.reg = e->reg; | |
3153 | update.mask = mask; | |
3154 | update.val = val; | |
3155 | card->update = &update; | |
3156 | } | |
561ed680 | 3157 | change |= reg_change; |
1642e3d4 | 3158 | |
3727b496 | 3159 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3160 | |
564c6504 | 3161 | card->update = NULL; |
fafd2176 | 3162 | } |
2e72f8e3 | 3163 | |
a73fb2df | 3164 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3165 | |
3166 | if (ret > 0) | |
3167 | soc_dpcm_runtime_update(card); | |
3168 | ||
97404f2e | 3169 | return change; |
2e72f8e3 | 3170 | } |
2b97eabc | 3171 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3172 | |
8b37dbd2 MB |
3173 | /** |
3174 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3175 | * | |
3176 | * @kcontrol: mixer control | |
3177 | * @uinfo: control element information | |
3178 | * | |
3179 | * Callback to provide information about a pin switch control. | |
3180 | */ | |
3181 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3182 | struct snd_ctl_elem_info *uinfo) | |
3183 | { | |
3184 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3185 | uinfo->count = 1; | |
3186 | uinfo->value.integer.min = 0; | |
3187 | uinfo->value.integer.max = 1; | |
3188 | ||
3189 | return 0; | |
3190 | } | |
3191 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3192 | ||
3193 | /** | |
3194 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3195 | * | |
3196 | * @kcontrol: mixer control | |
3197 | * @ucontrol: Value | |
3198 | */ | |
3199 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3200 | struct snd_ctl_elem_value *ucontrol) | |
3201 | { | |
48a8c394 | 3202 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3203 | const char *pin = (const char *)kcontrol->private_value; |
3204 | ||
3cd04343 | 3205 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3206 | |
3207 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3208 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3209 | |
a73fb2df | 3210 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3211 | |
3212 | return 0; | |
3213 | } | |
3214 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3215 | ||
3216 | /** | |
3217 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3218 | * | |
3219 | * @kcontrol: mixer control | |
3220 | * @ucontrol: Value | |
3221 | */ | |
3222 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3223 | struct snd_ctl_elem_value *ucontrol) | |
3224 | { | |
48a8c394 | 3225 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3226 | const char *pin = (const char *)kcontrol->private_value; |
3227 | ||
8b37dbd2 | 3228 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3229 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3230 | else |
48a8c394 | 3231 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3232 | |
a73fb2df | 3233 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3234 | return 0; |
3235 | } | |
3236 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3237 | ||
cc76e7de | 3238 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3239 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3240 | const struct snd_soc_dapm_widget *widget) |
3241 | { | |
3242 | struct snd_soc_dapm_widget *w; | |
3243 | ||
3244 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3245 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3246 | if (!w) | |
3247 | dev_err(dapm->dev, | |
3248 | "ASoC: Failed to create DAPM control %s\n", | |
3249 | widget->name); | |
3250 | ||
3251 | mutex_unlock(&dapm->card->dapm_mutex); | |
3252 | return w; | |
3253 | } | |
3254 | ||
3255 | struct snd_soc_dapm_widget * | |
3256 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3257 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3258 | { |
a3423b02 | 3259 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3260 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3261 | const char *prefix; |
62ea874a | 3262 | int ret; |
2b97eabc RP |
3263 | |
3264 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3265 | return NULL; |
2b97eabc | 3266 | |
62ea874a MB |
3267 | switch (w->id) { |
3268 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3269 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3270 | if (IS_ERR(w->regulator)) { | |
3271 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3272 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3273 | w->name, ret); |
5ba06fc9 | 3274 | return NULL; |
62ea874a | 3275 | } |
8784c77a | 3276 | |
de9ba98b | 3277 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3278 | ret = regulator_allow_bypass(w->regulator, true); |
3279 | if (ret != 0) | |
3280 | dev_warn(w->dapm->dev, | |
30686c35 | 3281 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3282 | w->name, ret); |
3283 | } | |
62ea874a | 3284 | break; |
d7e7eb91 | 3285 | case snd_soc_dapm_clock_supply: |
165961ef | 3286 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3287 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3288 | if (IS_ERR(w->clk)) { |
3289 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3290 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3291 | w->name, ret); |
3292 | return NULL; | |
3293 | } | |
ec02995a MB |
3294 | #else |
3295 | return NULL; | |
3296 | #endif | |
d7e7eb91 | 3297 | break; |
62ea874a MB |
3298 | default: |
3299 | break; | |
3300 | } | |
2b97eabc | 3301 | |
94f99c87 | 3302 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3303 | if (prefix) |
94f99c87 | 3304 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3305 | else |
48068961 | 3306 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3307 | if (w->name == NULL) { |
3308 | kfree(w); | |
5ba06fc9 | 3309 | return NULL; |
ead9b919 | 3310 | } |
ead9b919 | 3311 | |
7ca3a18b | 3312 | switch (w->id) { |
6dd98b0a | 3313 | case snd_soc_dapm_mic: |
a3423b02 | 3314 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3315 | w->power_check = dapm_generic_check_power; |
3316 | break; | |
86d75003 LPC |
3317 | case snd_soc_dapm_input: |
3318 | if (!dapm->card->fully_routed) | |
a3423b02 | 3319 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3320 | w->power_check = dapm_generic_check_power; |
3321 | break; | |
6dd98b0a LPC |
3322 | case snd_soc_dapm_spk: |
3323 | case snd_soc_dapm_hp: | |
a3423b02 | 3324 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3325 | w->power_check = dapm_generic_check_power; |
3326 | break; | |
86d75003 LPC |
3327 | case snd_soc_dapm_output: |
3328 | if (!dapm->card->fully_routed) | |
a3423b02 | 3329 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3330 | w->power_check = dapm_generic_check_power; |
3331 | break; | |
6dd98b0a LPC |
3332 | case snd_soc_dapm_vmid: |
3333 | case snd_soc_dapm_siggen: | |
a3423b02 | 3334 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3335 | w->power_check = dapm_always_on_check_power; |
3336 | break; | |
3337 | case snd_soc_dapm_mux: | |
d714f97c | 3338 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3339 | case snd_soc_dapm_switch: |
3340 | case snd_soc_dapm_mixer: | |
3341 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3342 | case snd_soc_dapm_adc: |
3343 | case snd_soc_dapm_aif_out: | |
3344 | case snd_soc_dapm_dac: | |
3345 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3346 | case snd_soc_dapm_pga: |
3347 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3348 | case snd_soc_dapm_micbias: |
7ca3a18b | 3349 | case snd_soc_dapm_line: |
c74184ed | 3350 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3351 | case snd_soc_dapm_dai_out: |
3352 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3353 | w->power_check = dapm_generic_check_power; |
3354 | break; | |
3355 | case snd_soc_dapm_supply: | |
62ea874a | 3356 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3357 | case snd_soc_dapm_clock_supply: |
57295073 | 3358 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3359 | w->is_supply = 1; |
7ca3a18b MB |
3360 | w->power_check = dapm_supply_check_power; |
3361 | break; | |
3362 | default: | |
3363 | w->power_check = dapm_always_on_check_power; | |
3364 | break; | |
3365 | } | |
3366 | ||
ce6120cc | 3367 | w->dapm = dapm; |
2b97eabc | 3368 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3369 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3370 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3371 | |
a3423b02 LPC |
3372 | snd_soc_dapm_for_each_direction(dir) { |
3373 | INIT_LIST_HEAD(&w->edges[dir]); | |
3374 | w->endpoints[dir] = -1; | |
3375 | } | |
92a99ea4 | 3376 | |
2b97eabc RP |
3377 | /* machine layer set ups unconnected pins and insertions */ |
3378 | w->connected = 1; | |
5ba06fc9 | 3379 | return w; |
2b97eabc | 3380 | } |
2b97eabc | 3381 | |
4ba1327a MB |
3382 | /** |
3383 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3384 | * @dapm: DAPM context |
4ba1327a MB |
3385 | * @widget: widget array |
3386 | * @num: number of widgets | |
3387 | * | |
3388 | * Creates new DAPM controls based upon the templates. | |
3389 | * | |
3390 | * Returns 0 for success else error. | |
3391 | */ | |
ce6120cc | 3392 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3393 | const struct snd_soc_dapm_widget *widget, |
3394 | int num) | |
3395 | { | |
5ba06fc9 MB |
3396 | struct snd_soc_dapm_widget *w; |
3397 | int i; | |
60884c27 | 3398 | int ret = 0; |
4ba1327a | 3399 | |
a73fb2df | 3400 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3401 | for (i = 0; i < num; i++) { |
02aa78ab | 3402 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
5ba06fc9 | 3403 | if (!w) { |
f7d41ae8 | 3404 | dev_err(dapm->dev, |
5ba06fc9 MB |
3405 | "ASoC: Failed to create DAPM control %s\n", |
3406 | widget->name); | |
60884c27 DC |
3407 | ret = -ENOMEM; |
3408 | break; | |
b8b33cb5 | 3409 | } |
4ba1327a MB |
3410 | widget++; |
3411 | } | |
a73fb2df | 3412 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3413 | return ret; |
4ba1327a MB |
3414 | } |
3415 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3416 | ||
c74184ed MB |
3417 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3418 | struct snd_kcontrol *kcontrol, int event) | |
3419 | { | |
3420 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3421 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3422 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3423 | struct snd_pcm_substream substream; |
9747cec2 | 3424 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3425 | u64 fmt; |
3426 | int ret; | |
3427 | ||
bf4edea8 | 3428 | if (WARN_ON(!config) || |
a3423b02 LPC |
3429 | WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || |
3430 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
bf4edea8 | 3431 | return -EINVAL; |
c74184ed MB |
3432 | |
3433 | /* We only support a single source and sink, pick the first */ | |
a3423b02 LPC |
3434 | source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], |
3435 | struct snd_soc_dapm_path, | |
3436 | list_node[SND_SOC_DAPM_DIR_OUT]); | |
3437 | sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], | |
3438 | struct snd_soc_dapm_path, | |
3439 | list_node[SND_SOC_DAPM_DIR_IN]); | |
c74184ed MB |
3440 | |
3441 | source = source_p->source->priv; | |
3442 | sink = sink_p->sink->priv; | |
3443 | ||
3444 | /* Be a little careful as we don't want to overflow the mask array */ | |
3445 | if (config->formats) { | |
3446 | fmt = ffs(config->formats) - 1; | |
3447 | } else { | |
30a6a1a4 | 3448 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3449 | config->formats); |
3450 | fmt = 0; | |
3451 | } | |
3452 | ||
3453 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3454 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3455 | if (!params) { | |
3456 | ret = -ENOMEM; | |
3457 | goto out; | |
3458 | } | |
3459 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3460 | |
9747cec2 | 3461 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3462 | config->rate_min; |
9747cec2 | 3463 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3464 | config->rate_max; |
3465 | ||
9747cec2 | 3466 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3467 | = config->channels_min; |
9747cec2 | 3468 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3469 | = config->channels_max; |
3470 | ||
3471 | memset(&substream, 0, sizeof(substream)); | |
3472 | ||
3473 | switch (event) { | |
3474 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a BC |
3475 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3476 | ret = soc_dai_hw_params(&substream, params, source); | |
3477 | if (ret < 0) | |
3478 | goto out; | |
c74184ed | 3479 | |
93e6958a BC |
3480 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3481 | ret = soc_dai_hw_params(&substream, params, sink); | |
3482 | if (ret < 0) | |
3483 | goto out; | |
c74184ed MB |
3484 | break; |
3485 | ||
3486 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3487 | ret = snd_soc_dai_digital_mute(sink, 0, |
3488 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3489 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3490 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3491 | ret = 0; |
c74184ed MB |
3492 | break; |
3493 | ||
3494 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3495 | ret = snd_soc_dai_digital_mute(sink, 1, |
3496 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3497 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3498 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3499 | ret = 0; |
c74184ed MB |
3500 | break; |
3501 | ||
3502 | default: | |
a6ed0608 | 3503 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3504 | return -EINVAL; |
3505 | } | |
3506 | ||
9747cec2 MB |
3507 | out: |
3508 | kfree(params); | |
3509 | return ret; | |
c74184ed MB |
3510 | } |
3511 | ||
c6615082 NO |
3512 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3513 | struct snd_ctl_elem_value *ucontrol) | |
3514 | { | |
3515 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3516 | ||
3517 | ucontrol->value.integer.value[0] = w->params_select; | |
3518 | ||
3519 | return 0; | |
3520 | } | |
3521 | ||
3522 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3523 | struct snd_ctl_elem_value *ucontrol) | |
3524 | { | |
3525 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3526 | ||
3527 | /* Can't change the config when widget is already powered */ | |
3528 | if (w->power) | |
3529 | return -EBUSY; | |
3530 | ||
3531 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3532 | return 0; | |
3533 | ||
3534 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3535 | return -EINVAL; | |
3536 | ||
3537 | w->params_select = ucontrol->value.integer.value[0]; | |
3538 | ||
3539 | return 0; | |
3540 | } | |
3541 | ||
c74184ed MB |
3542 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3543 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3544 | unsigned int num_params, |
c74184ed MB |
3545 | struct snd_soc_dapm_widget *source, |
3546 | struct snd_soc_dapm_widget *sink) | |
3547 | { | |
c74184ed MB |
3548 | struct snd_soc_dapm_widget template; |
3549 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3550 | char *link_name; |
c6615082 NO |
3551 | int ret, count; |
3552 | unsigned long private_value; | |
3553 | const char **w_param_text; | |
3554 | struct soc_enum w_param_enum[] = { | |
3555 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3556 | }; | |
3557 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3558 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3559 | snd_soc_dapm_dai_link_get, | |
3560 | snd_soc_dapm_dai_link_put), | |
3561 | }; | |
3562 | const struct snd_soc_pcm_stream *config = params; | |
3563 | ||
3564 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3565 | sizeof(char *), GFP_KERNEL); | |
3566 | if (!w_param_text) | |
c74184ed | 3567 | return -ENOMEM; |
c74184ed | 3568 | |
46172b6c CK |
3569 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3570 | source->name, sink->name); | |
c6615082 NO |
3571 | if (!link_name) { |
3572 | ret = -ENOMEM; | |
3573 | goto outfree_w_param; | |
3574 | } | |
c74184ed | 3575 | |
c6615082 NO |
3576 | for (count = 0 ; count < num_params; count++) { |
3577 | if (!config->stream_name) { | |
3578 | dev_warn(card->dapm.dev, | |
3579 | "ASoC: anonymous config %d for dai link %s\n", | |
3580 | count, link_name); | |
c6615082 | 3581 | w_param_text[count] = |
46172b6c CK |
3582 | devm_kasprintf(card->dev, GFP_KERNEL, |
3583 | "Anonymous Configuration %d", | |
3584 | count); | |
c6615082 NO |
3585 | if (!w_param_text[count]) { |
3586 | ret = -ENOMEM; | |
3587 | goto outfree_link_name; | |
3588 | } | |
c6615082 NO |
3589 | } else { |
3590 | w_param_text[count] = devm_kmemdup(card->dev, | |
3591 | config->stream_name, | |
3592 | strlen(config->stream_name) + 1, | |
3593 | GFP_KERNEL); | |
3594 | if (!w_param_text[count]) { | |
3595 | ret = -ENOMEM; | |
3596 | goto outfree_link_name; | |
3597 | } | |
3598 | } | |
3599 | config++; | |
3600 | } | |
3601 | w_param_enum[0].items = num_params; | |
3602 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3603 | |
3604 | memset(&template, 0, sizeof(template)); | |
3605 | template.reg = SND_SOC_NOPM; | |
3606 | template.id = snd_soc_dapm_dai_link; | |
3607 | template.name = link_name; | |
3608 | template.event = snd_soc_dai_link_event; | |
3609 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3610 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3611 | template.num_kcontrols = 1; |
3612 | /* duplicate w_param_enum on heap so that memory persists */ | |
3613 | private_value = | |
3614 | (unsigned long) devm_kmemdup(card->dev, | |
3615 | (void *)(kcontrol_dai_link[0].private_value), | |
3616 | sizeof(struct soc_enum), GFP_KERNEL); | |
3617 | if (!private_value) { | |
3618 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3619 | link_name); | |
3620 | ret = -ENOMEM; | |
3621 | goto outfree_link_name; | |
3622 | } | |
3623 | kcontrol_dai_link[0].private_value = private_value; | |
3624 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3625 | template.kcontrol_news = | |
3626 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3627 | sizeof(struct snd_kcontrol_new), | |
3628 | GFP_KERNEL); | |
3629 | if (!template.kcontrol_news) { | |
3630 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3631 | link_name); | |
3632 | ret = -ENOMEM; | |
3633 | goto outfree_private_value; | |
3634 | } | |
c74184ed | 3635 | |
30a6a1a4 | 3636 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3637 | |
02aa78ab | 3638 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
c74184ed | 3639 | if (!w) { |
30a6a1a4 | 3640 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3641 | link_name); |
c6615082 NO |
3642 | ret = -ENOMEM; |
3643 | goto outfree_kcontrol_news; | |
c74184ed MB |
3644 | } |
3645 | ||
3646 | w->params = params; | |
c6615082 | 3647 | w->num_params = num_params; |
c74184ed | 3648 | |
fe83897f LPC |
3649 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3650 | if (ret) | |
c6615082 | 3651 | goto outfree_w; |
fe83897f | 3652 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3653 | |
3654 | outfree_w: | |
3655 | devm_kfree(card->dev, w); | |
3656 | outfree_kcontrol_news: | |
3657 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3658 | outfree_private_value: | |
3659 | devm_kfree(card->dev, (void *)private_value); | |
3660 | outfree_link_name: | |
3661 | devm_kfree(card->dev, link_name); | |
3662 | outfree_w_param: | |
3663 | for (count = 0 ; count < num_params; count++) | |
3664 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3665 | devm_kfree(card->dev, w_param_text); | |
3666 | ||
3667 | return ret; | |
c74184ed MB |
3668 | } |
3669 | ||
888df395 MB |
3670 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3671 | struct snd_soc_dai *dai) | |
2b97eabc | 3672 | { |
888df395 | 3673 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3674 | struct snd_soc_dapm_widget *w; |
3675 | ||
888df395 MB |
3676 | WARN_ON(dapm->dev != dai->dev); |
3677 | ||
3678 | memset(&template, 0, sizeof(template)); | |
3679 | template.reg = SND_SOC_NOPM; | |
3680 | ||
3681 | if (dai->driver->playback.stream_name) { | |
4616274d | 3682 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3683 | template.name = dai->driver->playback.stream_name; |
3684 | template.sname = dai->driver->playback.stream_name; | |
3685 | ||
30a6a1a4 | 3686 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3687 | template.name); |
3688 | ||
02aa78ab | 3689 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3690 | if (!w) { |
30a6a1a4 | 3691 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3692 | dai->driver->playback.stream_name); |
298402a3 | 3693 | return -ENOMEM; |
888df395 MB |
3694 | } |
3695 | ||
3696 | w->priv = dai; | |
3697 | dai->playback_widget = w; | |
3698 | } | |
3699 | ||
3700 | if (dai->driver->capture.stream_name) { | |
4616274d | 3701 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3702 | template.name = dai->driver->capture.stream_name; |
3703 | template.sname = dai->driver->capture.stream_name; | |
3704 | ||
30a6a1a4 | 3705 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3706 | template.name); |
3707 | ||
02aa78ab | 3708 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3709 | if (!w) { |
30a6a1a4 | 3710 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3711 | dai->driver->capture.stream_name); |
298402a3 | 3712 | return -ENOMEM; |
888df395 MB |
3713 | } |
3714 | ||
3715 | w->priv = dai; | |
3716 | dai->capture_widget = w; | |
3717 | } | |
3718 | ||
3719 | return 0; | |
3720 | } | |
3721 | ||
3722 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3723 | { | |
3724 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3725 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3726 | struct snd_soc_dai *dai; |
888df395 MB |
3727 | |
3728 | /* For each DAI widget... */ | |
3729 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3730 | switch (dai_w->id) { |
3731 | case snd_soc_dapm_dai_in: | |
3732 | case snd_soc_dapm_dai_out: | |
3733 | break; | |
3734 | default: | |
2b97eabc | 3735 | continue; |
4616274d | 3736 | } |
888df395 MB |
3737 | |
3738 | dai = dai_w->priv; | |
3739 | ||
3740 | /* ...find all widgets with the same stream and link them */ | |
3741 | list_for_each_entry(w, &card->widgets, list) { | |
3742 | if (w->dapm != dai_w->dapm) | |
3743 | continue; | |
3744 | ||
4616274d MB |
3745 | switch (w->id) { |
3746 | case snd_soc_dapm_dai_in: | |
3747 | case snd_soc_dapm_dai_out: | |
888df395 | 3748 | continue; |
4616274d MB |
3749 | default: |
3750 | break; | |
3751 | } | |
888df395 | 3752 | |
a798c24a | 3753 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
3754 | continue; |
3755 | ||
0f9bd7b1 LPC |
3756 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3757 | src = dai_w; | |
3758 | sink = w; | |
3759 | } else { | |
3760 | src = w; | |
3761 | sink = dai_w; | |
2b97eabc | 3762 | } |
0f9bd7b1 LPC |
3763 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3764 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3765 | } |
3766 | } | |
2b97eabc | 3767 | |
888df395 MB |
3768 | return 0; |
3769 | } | |
64a648c2 | 3770 | |
44ba2641 BC |
3771 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3772 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3773 | { |
44ba2641 | 3774 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3775 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3776 | int i; |
3777 | ||
44ba2641 BC |
3778 | for (i = 0; i < rtd->num_codecs; i++) { |
3779 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f | 3780 | |
b893ea5f LG |
3781 | /* connect BE DAI playback if widgets are valid */ |
3782 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3783 | source = cpu_dai->playback_widget; |
3784 | sink = codec_dai->playback_widget; | |
b893ea5f | 3785 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3786 | cpu_dai->component->name, source->name, |
3787 | codec_dai->component->name, sink->name); | |
b893ea5f | 3788 | |
9887c20b LPC |
3789 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3790 | NULL, NULL); | |
b893ea5f LG |
3791 | } |
3792 | ||
3793 | /* connect BE DAI capture if widgets are valid */ | |
3794 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3795 | source = codec_dai->capture_widget; |
3796 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3797 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3798 | codec_dai->component->name, source->name, |
3799 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3800 | |
9887c20b LPC |
3801 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3802 | NULL, NULL); | |
b893ea5f | 3803 | } |
b893ea5f LG |
3804 | } |
3805 | } | |
3806 | ||
c471fdd1 | 3807 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3808 | int event) |
2b97eabc | 3809 | { |
c471fdd1 | 3810 | struct snd_soc_dapm_widget *w; |
a3423b02 | 3811 | unsigned int ep; |
7bd3a6f3 | 3812 | |
c471fdd1 LPC |
3813 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3814 | w = dai->playback_widget; | |
3815 | else | |
3816 | w = dai->capture_widget; | |
fe360685 | 3817 | |
c471fdd1 LPC |
3818 | if (w) { |
3819 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 3820 | |
a3423b02 LPC |
3821 | if (w->id == snd_soc_dapm_dai_in) { |
3822 | ep = SND_SOC_DAPM_EP_SOURCE; | |
3823 | dapm_widget_invalidate_input_paths(w); | |
3824 | } else { | |
3825 | ep = SND_SOC_DAPM_EP_SINK; | |
3826 | dapm_widget_invalidate_output_paths(w); | |
3827 | } | |
3828 | ||
d9b0951b LG |
3829 | switch (event) { |
3830 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3831 | w->active = 1; |
a3423b02 | 3832 | w->is_ep = ep; |
d9b0951b LG |
3833 | break; |
3834 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3835 | w->active = 0; |
a3423b02 | 3836 | w->is_ep = 0; |
d9b0951b LG |
3837 | break; |
3838 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3839 | case SND_SOC_DAPM_STREAM_RESUME: | |
3840 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3841 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3842 | break; | |
3843 | } | |
3844 | } | |
c471fdd1 | 3845 | } |
d9b0951b | 3846 | |
44ba2641 BC |
3847 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3848 | { | |
3849 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3850 | int i; | |
3851 | ||
3852 | /* for each BE DAI link... */ | |
3853 | for (i = 0; i < card->num_rtd; i++) { | |
3854 | rtd = &card->rtd[i]; | |
3855 | ||
3856 | /* | |
3857 | * dynamic FE links have no fixed DAI mapping. | |
3858 | * CODEC<->CODEC links have no direct connection. | |
3859 | */ | |
3860 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3861 | continue; | |
3862 | ||
3863 | dapm_connect_dai_link_widgets(card, rtd); | |
3864 | } | |
3865 | } | |
3866 | ||
c471fdd1 LPC |
3867 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3868 | int event) | |
3869 | { | |
44ba2641 BC |
3870 | int i; |
3871 | ||
c471fdd1 | 3872 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3873 | for (i = 0; i < rtd->num_codecs; i++) |
3874 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3875 | |
95dd5cd6 | 3876 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3877 | } |
3878 | ||
3879 | /** | |
3880 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3881 | * @rtd: PCM runtime data | |
3882 | * @stream: stream name | |
3883 | * @event: stream event | |
3884 | * | |
3885 | * Sends a stream event to the dapm core. The core then makes any | |
3886 | * necessary widget power changes. | |
3887 | * | |
3888 | * Returns 0 for success else error. | |
3889 | */ | |
d9b0951b LG |
3890 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3891 | int event) | |
ce6120cc | 3892 | { |
a73fb2df | 3893 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3894 | |
3cd04343 | 3895 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3896 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3897 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3898 | } |
2b97eabc | 3899 | |
11391100 CK |
3900 | /** |
3901 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3902 | * @dapm: DAPM context | |
3903 | * @pin: pin name | |
3904 | * | |
3905 | * Enables input/output pin and its parents or children widgets iff there is | |
3906 | * a valid audio route and active audio stream. | |
3907 | * | |
3908 | * Requires external locking. | |
3909 | * | |
3910 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3911 | * do any widget power switching. | |
3912 | */ | |
3913 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3914 | const char *pin) | |
3915 | { | |
3916 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3917 | } | |
3918 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3919 | ||
2b97eabc | 3920 | /** |
a5302181 | 3921 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3922 | * @dapm: DAPM context |
a5302181 | 3923 | * @pin: pin name |
2b97eabc | 3924 | * |
74b8f955 | 3925 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3926 | * a valid audio route and active audio stream. |
11391100 | 3927 | * |
a5302181 LG |
3928 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3929 | * do any widget power switching. | |
2b97eabc | 3930 | */ |
ce6120cc | 3931 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3932 | { |
11391100 CK |
3933 | int ret; |
3934 | ||
3935 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3936 | ||
3937 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3938 | ||
3939 | mutex_unlock(&dapm->card->dapm_mutex); | |
3940 | ||
3941 | return ret; | |
a5302181 LG |
3942 | } |
3943 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3944 | |
da34183e | 3945 | /** |
11391100 | 3946 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3947 | * @dapm: DAPM context |
da34183e MB |
3948 | * @pin: pin name |
3949 | * | |
3950 | * Enables input/output pin regardless of any other state. This is | |
3951 | * intended for use with microphone bias supplies used in microphone | |
3952 | * jack detection. | |
3953 | * | |
11391100 CK |
3954 | * Requires external locking. |
3955 | * | |
da34183e MB |
3956 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3957 | * do any widget power switching. | |
3958 | */ | |
11391100 CK |
3959 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3960 | const char *pin) | |
da34183e | 3961 | { |
91a5fca4 | 3962 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3963 | |
91a5fca4 | 3964 | if (!w) { |
30a6a1a4 | 3965 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3966 | return -EINVAL; |
0d86733c MB |
3967 | } |
3968 | ||
30a6a1a4 | 3969 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
3970 | if (!w->connected) { |
3971 | /* | |
3972 | * w->force does not affect the number of input or output paths, | |
3973 | * so we only have to recheck if w->connected is changed | |
3974 | */ | |
3975 | dapm_widget_invalidate_input_paths(w); | |
3976 | dapm_widget_invalidate_output_paths(w); | |
3977 | w->connected = 1; | |
3978 | } | |
91a5fca4 | 3979 | w->force = 1; |
75c1f891 | 3980 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3981 | |
91a5fca4 | 3982 | return 0; |
da34183e | 3983 | } |
11391100 CK |
3984 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
3985 | ||
3986 | /** | |
3987 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
3988 | * @dapm: DAPM context | |
3989 | * @pin: pin name | |
3990 | * | |
3991 | * Enables input/output pin regardless of any other state. This is | |
3992 | * intended for use with microphone bias supplies used in microphone | |
3993 | * jack detection. | |
3994 | * | |
3995 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3996 | * do any widget power switching. | |
3997 | */ | |
3998 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
3999 | const char *pin) | |
4000 | { | |
4001 | int ret; | |
4002 | ||
4003 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4004 | ||
4005 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4006 | ||
4007 | mutex_unlock(&dapm->card->dapm_mutex); | |
4008 | ||
4009 | return ret; | |
4010 | } | |
da34183e MB |
4011 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4012 | ||
11391100 CK |
4013 | /** |
4014 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4015 | * @dapm: DAPM context | |
4016 | * @pin: pin name | |
4017 | * | |
4018 | * Disables input/output pin and its parents or children widgets. | |
4019 | * | |
4020 | * Requires external locking. | |
4021 | * | |
4022 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4023 | * do any widget power switching. | |
4024 | */ | |
4025 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4026 | const char *pin) | |
4027 | { | |
4028 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4029 | } | |
4030 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4031 | ||
a5302181 LG |
4032 | /** |
4033 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4034 | * @dapm: DAPM context |
a5302181 LG |
4035 | * @pin: pin name |
4036 | * | |
74b8f955 | 4037 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4038 | * |
a5302181 LG |
4039 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4040 | * do any widget power switching. | |
4041 | */ | |
ce6120cc LG |
4042 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4043 | const char *pin) | |
a5302181 | 4044 | { |
11391100 CK |
4045 | int ret; |
4046 | ||
4047 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4048 | ||
4049 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4050 | ||
4051 | mutex_unlock(&dapm->card->dapm_mutex); | |
4052 | ||
4053 | return ret; | |
2b97eabc | 4054 | } |
a5302181 | 4055 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4056 | |
11391100 CK |
4057 | /** |
4058 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4059 | * @dapm: DAPM context | |
4060 | * @pin: pin name | |
4061 | * | |
4062 | * Marks the specified pin as being not connected, disabling it along | |
4063 | * any parent or child widgets. At present this is identical to | |
4064 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4065 | * additional things such as disabling controls which only affect | |
4066 | * paths through the pin. | |
4067 | * | |
4068 | * Requires external locking. | |
4069 | * | |
4070 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4071 | * do any widget power switching. | |
4072 | */ | |
4073 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4074 | const char *pin) | |
4075 | { | |
4076 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4077 | } | |
4078 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4079 | ||
5817b52a MB |
4080 | /** |
4081 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4082 | * @dapm: DAPM context |
5817b52a MB |
4083 | * @pin: pin name |
4084 | * | |
4085 | * Marks the specified pin as being not connected, disabling it along | |
4086 | * any parent or child widgets. At present this is identical to | |
4087 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4088 | * additional things such as disabling controls which only affect | |
4089 | * paths through the pin. | |
4090 | * | |
4091 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4092 | * do any widget power switching. | |
4093 | */ | |
ce6120cc | 4094 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4095 | { |
11391100 CK |
4096 | int ret; |
4097 | ||
4098 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4099 | ||
4100 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4101 | ||
4102 | mutex_unlock(&dapm->card->dapm_mutex); | |
4103 | ||
4104 | return ret; | |
5817b52a MB |
4105 | } |
4106 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4107 | ||
eeec12bf | 4108 | /** |
a5302181 | 4109 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4110 | * @dapm: DAPM context |
a5302181 | 4111 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4112 | * |
a5302181 | 4113 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4114 | * |
a5302181 | 4115 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4116 | */ |
ce6120cc LG |
4117 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4118 | const char *pin) | |
eeec12bf | 4119 | { |
91a5fca4 | 4120 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4121 | |
91a5fca4 LPC |
4122 | if (w) |
4123 | return w->connected; | |
a68b38ad | 4124 | |
eeec12bf GG |
4125 | return 0; |
4126 | } | |
a5302181 | 4127 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4128 | |
1547aba9 MB |
4129 | /** |
4130 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4131 | * @dapm: DAPM context |
1547aba9 MB |
4132 | * @pin: audio signal pin endpoint (or start point) |
4133 | * | |
4134 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4135 | * system is disabled a path between two endpoints flagged as ignoring | |
4136 | * suspend will not be disabled. The path must already be enabled via | |
4137 | * normal means at suspend time, it will not be turned on if it was not | |
4138 | * already enabled. | |
4139 | */ | |
ce6120cc LG |
4140 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4141 | const char *pin) | |
1547aba9 | 4142 | { |
91a5fca4 | 4143 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4144 | |
91a5fca4 | 4145 | if (!w) { |
30a6a1a4 | 4146 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4147 | return -EINVAL; |
1547aba9 MB |
4148 | } |
4149 | ||
91a5fca4 LPC |
4150 | w->ignore_suspend = 1; |
4151 | ||
4152 | return 0; | |
1547aba9 MB |
4153 | } |
4154 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4155 | ||
2b97eabc RP |
4156 | /** |
4157 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4158 | * @dapm: DAPM context |
2b97eabc RP |
4159 | * |
4160 | * Free all dapm widgets and resources. | |
4161 | */ | |
ce6120cc | 4162 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4163 | { |
6c45e126 | 4164 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4165 | dapm_free_widgets(dapm); |
7be31be8 | 4166 | list_del(&dapm->list); |
2b97eabc RP |
4167 | } |
4168 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4169 | ||
57996358 | 4170 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4171 | { |
01005a72 | 4172 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4173 | struct snd_soc_dapm_widget *w; |
4174 | LIST_HEAD(down_list); | |
4175 | int powerdown = 0; | |
4176 | ||
01005a72 LG |
4177 | mutex_lock(&card->dapm_mutex); |
4178 | ||
97c866de JN |
4179 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4180 | if (w->dapm != dapm) | |
4181 | continue; | |
51737470 | 4182 | if (w->power) { |
828a842f | 4183 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4184 | w->power = 0; |
51737470 MB |
4185 | powerdown = 1; |
4186 | } | |
4187 | } | |
4188 | ||
4189 | /* If there were no widgets to power down we're already in | |
4190 | * standby. | |
4191 | */ | |
4192 | if (powerdown) { | |
7679e42e MB |
4193 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4194 | snd_soc_dapm_set_bias_level(dapm, | |
4195 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4196 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4197 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4198 | snd_soc_dapm_set_bias_level(dapm, | |
4199 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4200 | } |
01005a72 LG |
4201 | |
4202 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4203 | } |
4204 | ||
4205 | /* | |
4206 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4207 | */ | |
4208 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4209 | { | |
57996358 | 4210 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4211 | |
57996358 | 4212 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4213 | if (dapm != &card->dapm) { |
4214 | soc_dapm_shutdown_dapm(dapm); | |
4215 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4216 | snd_soc_dapm_set_bias_level(dapm, | |
4217 | SND_SOC_BIAS_OFF); | |
4218 | } | |
ce6120cc | 4219 | } |
17282ba4 XX |
4220 | |
4221 | soc_dapm_shutdown_dapm(&card->dapm); | |
4222 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4223 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4224 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4225 | } |
4226 | ||
2b97eabc | 4227 | /* Module information */ |
d331124d | 4228 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4229 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4230 | MODULE_LICENSE("GPL"); |