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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
a3423b02 LPC |
50 | #define SND_SOC_DAPM_DIR_REVERSE(x) ((x == SND_SOC_DAPM_DIR_IN) ? \ |
51 | SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN) | |
52 | ||
53 | #define snd_soc_dapm_for_each_direction(dir) \ | |
54 | for ((dir) = SND_SOC_DAPM_DIR_IN; (dir) <= SND_SOC_DAPM_DIR_OUT; \ | |
55 | (dir)++) | |
56 | ||
57295073 LPC |
57 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
58 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
59 | const char *control, | |
60 | int (*connected)(struct snd_soc_dapm_widget *source, | |
61 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 62 | |
cc76e7de | 63 | struct snd_soc_dapm_widget * |
57295073 LPC |
64 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
65 | const struct snd_soc_dapm_widget *widget); | |
66 | ||
02aa78ab LG |
67 | struct snd_soc_dapm_widget * |
68 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
69 | const struct snd_soc_dapm_widget *widget); |
70 | ||
2b97eabc RP |
71 | /* dapm power sequences - make this per codec in the future */ |
72 | static int dapm_up_seq[] = { | |
38357ab2 | 73 | [snd_soc_dapm_pre] = 0, |
62ea874a | 74 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 75 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
76 | [snd_soc_dapm_supply] = 2, |
77 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 78 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
79 | [snd_soc_dapm_dai_in] = 4, |
80 | [snd_soc_dapm_dai_out] = 4, | |
81 | [snd_soc_dapm_aif_in] = 4, | |
82 | [snd_soc_dapm_aif_out] = 4, | |
83 | [snd_soc_dapm_mic] = 5, | |
84 | [snd_soc_dapm_mux] = 6, | |
d714f97c | 85 | [snd_soc_dapm_demux] = 6, |
1dd275b6 MB |
86 | [snd_soc_dapm_dac] = 7, |
87 | [snd_soc_dapm_switch] = 8, | |
88 | [snd_soc_dapm_mixer] = 8, | |
89 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
90 | [snd_soc_dapm_pga] = 9, | |
91 | [snd_soc_dapm_adc] = 10, | |
92 | [snd_soc_dapm_out_drv] = 11, | |
93 | [snd_soc_dapm_hp] = 11, | |
94 | [snd_soc_dapm_spk] = 11, | |
95 | [snd_soc_dapm_line] = 11, | |
96 | [snd_soc_dapm_kcontrol] = 12, | |
97 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 98 | }; |
ca9c1aae | 99 | |
2b97eabc | 100 | static int dapm_down_seq[] = { |
38357ab2 | 101 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
102 | [snd_soc_dapm_kcontrol] = 1, |
103 | [snd_soc_dapm_adc] = 2, | |
104 | [snd_soc_dapm_hp] = 3, | |
105 | [snd_soc_dapm_spk] = 3, | |
106 | [snd_soc_dapm_line] = 3, | |
107 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 108 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 109 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 110 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
111 | [snd_soc_dapm_mixer] = 5, |
112 | [snd_soc_dapm_dac] = 6, | |
113 | [snd_soc_dapm_mic] = 7, | |
114 | [snd_soc_dapm_micbias] = 8, | |
115 | [snd_soc_dapm_mux] = 9, | |
d714f97c | 116 | [snd_soc_dapm_demux] = 9, |
010ff262 MB |
117 | [snd_soc_dapm_aif_in] = 10, |
118 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
119 | [snd_soc_dapm_dai_in] = 10, |
120 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 121 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 122 | [snd_soc_dapm_supply] = 12, |
1dd275b6 MB |
123 | [snd_soc_dapm_clock_supply] = 13, |
124 | [snd_soc_dapm_regulator_supply] = 13, | |
125 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
126 | }; |
127 | ||
f9fa2b18 MB |
128 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
129 | { | |
130 | if (dapm->card && dapm->card->instantiated) | |
131 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
132 | } | |
133 | ||
12ef193d | 134 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
135 | { |
136 | if (pop_time) | |
137 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
138 | } | |
139 | ||
fd8d3bc0 | 140 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
141 | { |
142 | va_list args; | |
fd8d3bc0 | 143 | char *buf; |
15e4c72f | 144 | |
fd8d3bc0 JN |
145 | if (!pop_time) |
146 | return; | |
15e4c72f | 147 | |
fd8d3bc0 JN |
148 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
149 | if (buf == NULL) | |
150 | return; | |
15e4c72f | 151 | |
fd8d3bc0 JN |
152 | va_start(args, fmt); |
153 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 154 | dev_info(dev, "%s", buf); |
15e4c72f | 155 | va_end(args); |
fd8d3bc0 JN |
156 | |
157 | kfree(buf); | |
15e4c72f MB |
158 | } |
159 | ||
db432b41 MB |
160 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
161 | { | |
162 | return !list_empty(&w->dirty); | |
163 | } | |
164 | ||
492c0a18 | 165 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 166 | { |
f9fa2b18 MB |
167 | dapm_assert_locked(w->dapm); |
168 | ||
75c1f891 MB |
169 | if (!dapm_dirty_widget(w)) { |
170 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
171 | w->name, reason); | |
db432b41 | 172 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 173 | } |
db432b41 MB |
174 | } |
175 | ||
92a99ea4 | 176 | /* |
a3423b02 LPC |
177 | * Common implementation for dapm_widget_invalidate_input_paths() and |
178 | * dapm_widget_invalidate_output_paths(). The function is inlined since the | |
179 | * combined size of the two specialized functions is only marginally larger then | |
180 | * the size of the generic function and at the same time the fast path of the | |
181 | * specialized functions is significantly smaller than the generic function. | |
92a99ea4 | 182 | */ |
a3423b02 LPC |
183 | static __always_inline void dapm_widget_invalidate_paths( |
184 | struct snd_soc_dapm_widget *w, enum snd_soc_dapm_direction dir) | |
92a99ea4 | 185 | { |
a3423b02 LPC |
186 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
187 | struct snd_soc_dapm_widget *node; | |
92a99ea4 LPC |
188 | struct snd_soc_dapm_path *p; |
189 | LIST_HEAD(list); | |
190 | ||
191 | dapm_assert_locked(w->dapm); | |
192 | ||
a3423b02 | 193 | if (w->endpoints[dir] == -1) |
92a99ea4 LPC |
194 | return; |
195 | ||
92a99ea4 | 196 | list_add_tail(&w->work_list, &list); |
a3423b02 | 197 | w->endpoints[dir] = -1; |
92a99ea4 LPC |
198 | |
199 | list_for_each_entry(w, &list, work_list) { | |
a3423b02 | 200 | snd_soc_dapm_widget_for_each_path(w, dir, p) { |
92a99ea4 LPC |
201 | if (p->is_supply || p->weak || !p->connect) |
202 | continue; | |
a3423b02 LPC |
203 | node = p->node[rdir]; |
204 | if (node->endpoints[dir] != -1) { | |
205 | node->endpoints[dir] = -1; | |
206 | list_add_tail(&node->work_list, &list); | |
92a99ea4 LPC |
207 | } |
208 | } | |
209 | } | |
210 | } | |
211 | ||
a3423b02 LPC |
212 | /* |
213 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of | |
214 | * input paths | |
215 | * @w: The widget for which to invalidate the cached number of input paths | |
216 | * | |
217 | * Resets the cached number of inputs for the specified widget and all widgets | |
218 | * that can be reached via outcoming paths from the widget. | |
219 | * | |
220 | * This function must be called if the number of output paths for a widget might | |
221 | * have changed. E.g. if the source state of a widget changes or a path is added | |
222 | * or activated with the widget as the sink. | |
223 | */ | |
224 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
225 | { | |
226 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_IN); | |
227 | } | |
228 | ||
92a99ea4 LPC |
229 | /* |
230 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
231 | * output paths | |
232 | * @w: The widget for which to invalidate the cached number of output paths | |
233 | * | |
234 | * Resets the cached number of outputs for the specified widget and all widgets | |
235 | * that can be reached via incoming paths from the widget. | |
236 | * | |
237 | * This function must be called if the number of output paths for a widget might | |
238 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
239 | * or activated with the widget as the source. | |
240 | */ | |
241 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
242 | { | |
a3423b02 | 243 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_OUT); |
92a99ea4 LPC |
244 | } |
245 | ||
246 | /* | |
247 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
248 | * for the widgets connected to a path | |
249 | * @p: The path to invalidate | |
250 | * | |
251 | * Resets the cached number of inputs for the sink of the path and the cached | |
252 | * number of outputs for the source of the path. | |
253 | * | |
254 | * This function must be called when a path is added, removed or the connected | |
255 | * state changes. | |
256 | */ | |
257 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
258 | { | |
259 | /* | |
260 | * Weak paths or supply paths do not influence the number of input or | |
261 | * output paths of their neighbors. | |
262 | */ | |
263 | if (p->weak || p->is_supply) | |
264 | return; | |
265 | ||
266 | /* | |
267 | * The number of connected endpoints is the sum of the number of | |
268 | * connected endpoints of all neighbors. If a node with 0 connected | |
269 | * endpoints is either connected or disconnected that sum won't change, | |
270 | * so there is no need to re-check the path. | |
271 | */ | |
a3423b02 | 272 | if (p->source->endpoints[SND_SOC_DAPM_DIR_IN] != 0) |
92a99ea4 | 273 | dapm_widget_invalidate_input_paths(p->sink); |
a3423b02 | 274 | if (p->sink->endpoints[SND_SOC_DAPM_DIR_OUT] != 0) |
92a99ea4 LPC |
275 | dapm_widget_invalidate_output_paths(p->source); |
276 | } | |
277 | ||
8be4da29 | 278 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 279 | { |
e2d32ff6 MB |
280 | struct snd_soc_dapm_widget *w; |
281 | ||
282 | mutex_lock(&card->dapm_mutex); | |
283 | ||
284 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 | 285 | if (w->is_ep) { |
8be4da29 | 286 | dapm_mark_dirty(w, "Rechecking endpoints"); |
a3423b02 | 287 | if (w->is_ep & SND_SOC_DAPM_EP_SINK) |
92a99ea4 | 288 | dapm_widget_invalidate_output_paths(w); |
a3423b02 | 289 | if (w->is_ep & SND_SOC_DAPM_EP_SOURCE) |
92a99ea4 LPC |
290 | dapm_widget_invalidate_input_paths(w); |
291 | } | |
e2d32ff6 MB |
292 | } |
293 | ||
294 | mutex_unlock(&card->dapm_mutex); | |
295 | } | |
8be4da29 | 296 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 297 | |
2b97eabc | 298 | /* create a new dapm widget */ |
88cb4290 | 299 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
300 | const struct snd_soc_dapm_widget *_widget) |
301 | { | |
88cb4290 | 302 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
303 | } |
304 | ||
e84357f7 | 305 | struct dapm_kcontrol_data { |
cf7c1de2 | 306 | unsigned int value; |
57295073 | 307 | struct snd_soc_dapm_widget *widget; |
5106b92f | 308 | struct list_head paths; |
2c75bdf3 | 309 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
310 | }; |
311 | ||
312 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
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 | */ | |
19a2557b | 782 | static int dapm_create_or_share_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: | |
19a2557b | 813 | case snd_soc_dapm_pga: |
85762e71 SW |
814 | wname_in_long_name = true; |
815 | kcname_in_long_name = true; | |
816 | break; | |
817 | case snd_soc_dapm_mixer_named_ctl: | |
818 | wname_in_long_name = false; | |
819 | kcname_in_long_name = true; | |
820 | break; | |
d714f97c | 821 | case snd_soc_dapm_demux: |
85762e71 | 822 | case snd_soc_dapm_mux: |
85762e71 SW |
823 | wname_in_long_name = true; |
824 | kcname_in_long_name = false; | |
825 | break; | |
826 | default: | |
85762e71 | 827 | return -EINVAL; |
82cd8764 | 828 | } |
85762e71 SW |
829 | } |
830 | ||
831 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
832 | /* |
833 | * The control will get a prefix from the control | |
834 | * creation process but we're also using the same | |
835 | * prefix for widgets so cut the prefix off the | |
836 | * front of the widget name. | |
ca9c1aae | 837 | */ |
2b581074 | 838 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
839 | w->name + prefix_len, |
840 | w->kcontrol_news[kci].name); | |
e84357f7 | 841 | if (long_name == NULL) |
2b581074 | 842 | return -ENOMEM; |
85762e71 SW |
843 | |
844 | name = long_name; | |
845 | } else if (wname_in_long_name) { | |
846 | long_name = NULL; | |
847 | name = w->name + prefix_len; | |
848 | } else { | |
849 | long_name = NULL; | |
850 | name = w->kcontrol_news[kci].name; | |
851 | } | |
ca9c1aae | 852 | |
e84357f7 | 853 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 854 | prefix); |
e5092c96 DM |
855 | if (!kcontrol) { |
856 | ret = -ENOMEM; | |
857 | goto exit_free; | |
858 | } | |
859 | ||
9356e9d5 | 860 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 LPC |
861 | |
862 | ret = dapm_kcontrol_data_alloc(w, kcontrol); | |
863 | if (ret) { | |
864 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 865 | goto exit_free; |
e84357f7 LPC |
866 | } |
867 | ||
85762e71 SW |
868 | ret = snd_ctl_add(card, kcontrol); |
869 | if (ret < 0) { | |
870 | dev_err(dapm->dev, | |
871 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
872 | w->name, name, ret); | |
e5092c96 | 873 | goto exit_free; |
85762e71 | 874 | } |
85762e71 | 875 | } |
2b97eabc | 876 | |
2c75bdf3 | 877 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
878 | if (ret == 0) |
879 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 880 | |
e5092c96 DM |
881 | exit_free: |
882 | kfree(long_name); | |
ca9c1aae | 883 | |
e5092c96 | 884 | return ret; |
85762e71 | 885 | } |
219b93f5 | 886 | |
85762e71 SW |
887 | /* create new dapm mixer control */ |
888 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
889 | { | |
890 | int i, ret; | |
891 | struct snd_soc_dapm_path *path; | |
561ed680 | 892 | struct dapm_kcontrol_data *data; |
85762e71 SW |
893 | |
894 | /* add kcontrol */ | |
895 | for (i = 0; i < w->num_kcontrols; i++) { | |
896 | /* match name */ | |
e63bfd45 | 897 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
898 | /* mixer/mux paths name must match control name */ |
899 | if (path->name != (char *)w->kcontrol_news[i].name) | |
900 | continue; | |
901 | ||
561ed680 | 902 | if (!w->kcontrols[i]) { |
19a2557b | 903 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
904 | if (ret < 0) |
905 | return ret; | |
2b97eabc | 906 | } |
85762e71 | 907 | |
946d92a1 | 908 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
909 | |
910 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
911 | if (data->widget) | |
912 | snd_soc_dapm_add_path(data->widget->dapm, | |
913 | data->widget, | |
914 | path->source, | |
915 | NULL, NULL); | |
2b97eabc RP |
916 | } |
917 | } | |
85762e71 SW |
918 | |
919 | return 0; | |
2b97eabc RP |
920 | } |
921 | ||
922 | /* create new dapm mux control */ | |
4b80b8c2 | 923 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 924 | { |
4b80b8c2 | 925 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 926 | enum snd_soc_dapm_direction dir; |
85762e71 | 927 | struct snd_soc_dapm_path *path; |
d714f97c | 928 | const char *type; |
af46800b | 929 | int ret; |
2b97eabc | 930 | |
d714f97c LPC |
931 | switch (w->id) { |
932 | case snd_soc_dapm_mux: | |
a3423b02 | 933 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
934 | type = "mux"; |
935 | break; | |
936 | case snd_soc_dapm_demux: | |
a3423b02 | 937 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
938 | type = "demux"; |
939 | break; | |
940 | default: | |
941 | return -EINVAL; | |
942 | } | |
943 | ||
af46800b SW |
944 | if (w->num_kcontrols != 1) { |
945 | dev_err(dapm->dev, | |
d714f97c | 946 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 947 | w->name); |
2b97eabc RP |
948 | return -EINVAL; |
949 | } | |
950 | ||
a3423b02 | 951 | if (list_empty(&w->edges[dir])) { |
d714f97c | 952 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 953 | return -EINVAL; |
af46800b | 954 | } |
ce6120cc | 955 | |
19a2557b | 956 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
957 | if (ret < 0) |
958 | return ret; | |
fad59888 | 959 | |
a3423b02 LPC |
960 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
961 | if (path->name) | |
962 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 963 | } |
2b97eabc | 964 | |
af46800b | 965 | return 0; |
2b97eabc RP |
966 | } |
967 | ||
968 | /* create new dapm volume control */ | |
4b80b8c2 | 969 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 970 | { |
19a2557b JK |
971 | int i, ret; |
972 | ||
973 | for (i = 0; i < w->num_kcontrols; i++) { | |
974 | ret = dapm_create_or_share_kcontrol(w, i); | |
975 | if (ret < 0) | |
976 | return ret; | |
977 | } | |
2b97eabc | 978 | |
a6c65736 | 979 | return 0; |
2b97eabc RP |
980 | } |
981 | ||
c6615082 NO |
982 | /* create new dapm dai link control */ |
983 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
984 | { | |
985 | int i, ret; | |
986 | struct snd_kcontrol *kcontrol; | |
987 | struct snd_soc_dapm_context *dapm = w->dapm; | |
988 | struct snd_card *card = dapm->card->snd_card; | |
989 | ||
990 | /* create control for links with > 1 config */ | |
991 | if (w->num_params <= 1) | |
992 | return 0; | |
993 | ||
994 | /* add kcontrol */ | |
995 | for (i = 0; i < w->num_kcontrols; i++) { | |
996 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
997 | w->name, NULL); | |
998 | ret = snd_ctl_add(card, kcontrol); | |
999 | if (ret < 0) { | |
1000 | dev_err(dapm->dev, | |
1001 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1002 | w->name, w->kcontrol_news[i].name, ret); | |
1003 | return ret; | |
1004 | } | |
1005 | kcontrol->private_data = w; | |
1006 | w->kcontrols[i] = kcontrol; | |
1007 | } | |
1008 | ||
1009 | return 0; | |
1010 | } | |
1011 | ||
9949788b MB |
1012 | /* We implement power down on suspend by checking the power state of |
1013 | * the ALSA card - when we are suspending the ALSA state for the card | |
1014 | * is set to D3. | |
1015 | */ | |
1016 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1017 | { | |
12ea2c78 | 1018 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1019 | |
f0fba2ad | 1020 | switch (level) { |
9949788b MB |
1021 | case SNDRV_CTL_POWER_D3hot: |
1022 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1023 | if (widget->ignore_suspend) |
30a6a1a4 | 1024 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1025 | widget->name); |
1547aba9 | 1026 | return widget->ignore_suspend; |
9949788b MB |
1027 | default: |
1028 | return 1; | |
1029 | } | |
1030 | } | |
1031 | ||
1ce43acf LPC |
1032 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1033 | struct list_head *widgets) | |
ec2e3031 | 1034 | { |
1ce43acf LPC |
1035 | struct snd_soc_dapm_widget *w; |
1036 | struct list_head *it; | |
1037 | unsigned int size = 0; | |
1038 | unsigned int i = 0; | |
ec2e3031 | 1039 | |
1ce43acf LPC |
1040 | list_for_each(it, widgets) |
1041 | size++; | |
ec2e3031 | 1042 | |
1ce43acf LPC |
1043 | *list = kzalloc(sizeof(**list) + size * sizeof(*w), GFP_KERNEL); |
1044 | if (*list == NULL) | |
ec2e3031 | 1045 | return -ENOMEM; |
ec2e3031 | 1046 | |
1ce43acf LPC |
1047 | list_for_each_entry(w, widgets, work_list) |
1048 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1049 | |
1ce43acf LPC |
1050 | (*list)->num_widgets = i; |
1051 | ||
1052 | return 0; | |
ec2e3031 LG |
1053 | } |
1054 | ||
2b97eabc | 1055 | /* |
a3423b02 LPC |
1056 | * Common implementation for is_connected_output_ep() and |
1057 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1058 | * the two specialized functions is only marginally larger then the size of the | |
1059 | * generic function and at the same time the fast path of the specialized | |
1060 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1061 | */ |
a3423b02 LPC |
1062 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1063 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
1064 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *)) | |
2b97eabc | 1065 | { |
a3423b02 | 1066 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1067 | struct snd_soc_dapm_path *path; |
1068 | int con = 0; | |
1069 | ||
a3423b02 LPC |
1070 | if (widget->endpoints[dir] >= 0) |
1071 | return widget->endpoints[dir]; | |
024dc078 | 1072 | |
de02d078 MB |
1073 | DAPM_UPDATE_STAT(widget, path_checks); |
1074 | ||
1ce43acf LPC |
1075 | /* do we need to add this widget to the list ? */ |
1076 | if (list) | |
1077 | list_add_tail(&widget->work_list, list); | |
1078 | ||
a3423b02 LPC |
1079 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1080 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1081 | return widget->endpoints[dir]; | |
2b97eabc RP |
1082 | } |
1083 | ||
a3423b02 | 1084 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1085 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1086 | ||
c1862c8b | 1087 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1088 | continue; |
1089 | ||
8af294b4 MB |
1090 | if (path->walking) |
1091 | return 1; | |
1092 | ||
a3423b02 | 1093 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1094 | |
7ddd4cd5 | 1095 | if (path->connect) { |
8af294b4 | 1096 | path->walking = 1; |
a3423b02 | 1097 | con += fn(path->node[dir], list); |
8af294b4 | 1098 | path->walking = 0; |
2b97eabc RP |
1099 | } |
1100 | } | |
1101 | ||
a3423b02 | 1102 | widget->endpoints[dir] = con; |
024dc078 | 1103 | |
2b97eabc RP |
1104 | return con; |
1105 | } | |
1106 | ||
a3423b02 LPC |
1107 | /* |
1108 | * Recursively check for a completed path to an active or physically connected | |
1109 | * output widget. Returns number of complete paths. | |
1110 | */ | |
1111 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
1112 | struct list_head *list) | |
1113 | { | |
1114 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
1115 | is_connected_output_ep); | |
1116 | } | |
1117 | ||
2b97eabc RP |
1118 | /* |
1119 | * Recursively check for a completed path to an active or physically connected | |
1120 | * input widget. Returns number of complete paths. | |
1121 | */ | |
ec2e3031 | 1122 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
1ce43acf | 1123 | struct list_head *list) |
2b97eabc | 1124 | { |
a3423b02 LPC |
1125 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
1126 | is_connected_input_ep); | |
2b97eabc RP |
1127 | } |
1128 | ||
ec2e3031 LG |
1129 | /** |
1130 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1131 | * @dai: the soc DAI. | |
1132 | * @stream: stream direction. | |
1133 | * @list: list of active widgets for this stream. | |
1134 | * | |
1135 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1136 | * the initial stream specified by name. This takes into account | |
1137 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1138 | * | |
1139 | * Returns the number of valid paths or negative error. | |
1140 | */ | |
1141 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1142 | struct snd_soc_dapm_widget_list **list) | |
1143 | { | |
313665b9 | 1144 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1145 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1146 | LIST_HEAD(widgets); |
ec2e3031 | 1147 | int paths; |
1ce43acf | 1148 | int ret; |
ec2e3031 LG |
1149 | |
1150 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1151 | |
1152 | /* | |
1153 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1154 | * to reset the cached number of inputs and outputs. | |
1155 | */ | |
1156 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 LPC |
1157 | w->endpoints[SND_SOC_DAPM_DIR_IN] = -1; |
1158 | w->endpoints[SND_SOC_DAPM_DIR_OUT] = -1; | |
92a99ea4 | 1159 | } |
ec2e3031 | 1160 | |
130897ac | 1161 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1ce43acf | 1162 | paths = is_connected_output_ep(dai->playback_widget, &widgets); |
130897ac | 1163 | else |
1ce43acf LPC |
1164 | paths = is_connected_input_ep(dai->capture_widget, &widgets); |
1165 | ||
1166 | /* Drop starting point */ | |
1167 | list_del(widgets.next); | |
1168 | ||
1169 | ret = dapm_widget_list_create(list, &widgets); | |
1170 | if (ret) | |
30abbe77 | 1171 | paths = ret; |
ec2e3031 LG |
1172 | |
1173 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1174 | mutex_unlock(&card->dapm_mutex); |
1175 | ||
1176 | return paths; | |
1177 | } | |
1178 | ||
62ea874a MB |
1179 | /* |
1180 | * Handler for regulator supply widget. | |
1181 | */ | |
1182 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1183 | struct snd_kcontrol *kcontrol, int event) | |
1184 | { | |
c05b84d1 MB |
1185 | int ret; |
1186 | ||
eb270e98 MB |
1187 | soc_dapm_async_complete(w->dapm); |
1188 | ||
c05b84d1 | 1189 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1190 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1191 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1192 | if (ret != 0) |
1193 | dev_warn(w->dapm->dev, | |
30686c35 | 1194 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1195 | w->name, ret); |
1196 | } | |
1197 | ||
a3cc056b | 1198 | return regulator_enable(w->regulator); |
c05b84d1 | 1199 | } else { |
de9ba98b | 1200 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1201 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1202 | if (ret != 0) |
1203 | dev_warn(w->dapm->dev, | |
30686c35 | 1204 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1205 | w->name, ret); |
1206 | } | |
1207 | ||
a3cc056b | 1208 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1209 | } |
62ea874a MB |
1210 | } |
1211 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1212 | ||
d7e7eb91 OL |
1213 | /* |
1214 | * Handler for clock supply widget. | |
1215 | */ | |
1216 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1217 | struct snd_kcontrol *kcontrol, int event) | |
1218 | { | |
1219 | if (!w->clk) | |
1220 | return -EIO; | |
1221 | ||
eb270e98 MB |
1222 | soc_dapm_async_complete(w->dapm); |
1223 | ||
ec02995a | 1224 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1225 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1226 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1227 | } else { |
37c1b927 | 1228 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1229 | return 0; |
1230 | } | |
ec02995a | 1231 | #endif |
98b3cf12 | 1232 | return 0; |
d7e7eb91 OL |
1233 | } |
1234 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1235 | ||
d805002b MB |
1236 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1237 | { | |
9b8a83b2 MB |
1238 | if (w->power_checked) |
1239 | return w->new_power; | |
1240 | ||
d805002b | 1241 | if (w->force) |
9b8a83b2 | 1242 | w->new_power = 1; |
d805002b | 1243 | else |
9b8a83b2 MB |
1244 | w->new_power = w->power_check(w); |
1245 | ||
1246 | w->power_checked = true; | |
1247 | ||
1248 | return w->new_power; | |
d805002b MB |
1249 | } |
1250 | ||
cd0f2d47 MB |
1251 | /* Generic check to see if a widget should be powered. |
1252 | */ | |
1253 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1254 | { | |
1255 | int in, out; | |
1256 | ||
de02d078 MB |
1257 | DAPM_UPDATE_STAT(w, power_checks); |
1258 | ||
ec2e3031 | 1259 | in = is_connected_input_ep(w, NULL); |
ec2e3031 | 1260 | out = is_connected_output_ep(w, NULL); |
cd0f2d47 MB |
1261 | return out != 0 && in != 0; |
1262 | } | |
1263 | ||
246d0a17 MB |
1264 | /* Check to see if a power supply is needed */ |
1265 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1266 | { | |
1267 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1268 | |
de02d078 MB |
1269 | DAPM_UPDATE_STAT(w, power_checks); |
1270 | ||
246d0a17 | 1271 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1272 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1273 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1274 | ||
bf3a9e13 MB |
1275 | if (path->weak) |
1276 | continue; | |
1277 | ||
215edda3 MB |
1278 | if (path->connected && |
1279 | !path->connected(path->source, path->sink)) | |
1280 | continue; | |
1281 | ||
f68d7e16 MB |
1282 | if (dapm_widget_power_check(path->sink)) |
1283 | return 1; | |
246d0a17 MB |
1284 | } |
1285 | ||
f68d7e16 | 1286 | return 0; |
246d0a17 MB |
1287 | } |
1288 | ||
35c64bca MB |
1289 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1290 | { | |
1291 | return 1; | |
1292 | } | |
1293 | ||
38357ab2 MB |
1294 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1295 | struct snd_soc_dapm_widget *b, | |
828a842f | 1296 | bool power_up) |
42aa3418 | 1297 | { |
828a842f MB |
1298 | int *sort; |
1299 | ||
1300 | if (power_up) | |
1301 | sort = dapm_up_seq; | |
1302 | else | |
1303 | sort = dapm_down_seq; | |
1304 | ||
38357ab2 MB |
1305 | if (sort[a->id] != sort[b->id]) |
1306 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1307 | if (a->subseq != b->subseq) { |
1308 | if (power_up) | |
1309 | return a->subseq - b->subseq; | |
1310 | else | |
1311 | return b->subseq - a->subseq; | |
1312 | } | |
b22ead2a MB |
1313 | if (a->reg != b->reg) |
1314 | return a->reg - b->reg; | |
84dab567 MB |
1315 | if (a->dapm != b->dapm) |
1316 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1317 | |
38357ab2 MB |
1318 | return 0; |
1319 | } | |
42aa3418 | 1320 | |
38357ab2 MB |
1321 | /* Insert a widget in order into a DAPM power sequence. */ |
1322 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1323 | struct list_head *list, | |
828a842f | 1324 | bool power_up) |
38357ab2 MB |
1325 | { |
1326 | struct snd_soc_dapm_widget *w; | |
1327 | ||
1328 | list_for_each_entry(w, list, power_list) | |
828a842f | 1329 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1330 | list_add_tail(&new_widget->power_list, &w->power_list); |
1331 | return; | |
1332 | } | |
1333 | ||
1334 | list_add_tail(&new_widget->power_list, list); | |
1335 | } | |
1336 | ||
95dd5cd6 | 1337 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1338 | struct snd_soc_dapm_widget *w, int event) |
1339 | { | |
68f89ad8 MB |
1340 | const char *ev_name; |
1341 | int power, ret; | |
1342 | ||
1343 | switch (event) { | |
1344 | case SND_SOC_DAPM_PRE_PMU: | |
1345 | ev_name = "PRE_PMU"; | |
1346 | power = 1; | |
1347 | break; | |
1348 | case SND_SOC_DAPM_POST_PMU: | |
1349 | ev_name = "POST_PMU"; | |
1350 | power = 1; | |
1351 | break; | |
1352 | case SND_SOC_DAPM_PRE_PMD: | |
1353 | ev_name = "PRE_PMD"; | |
1354 | power = 0; | |
1355 | break; | |
1356 | case SND_SOC_DAPM_POST_PMD: | |
1357 | ev_name = "POST_PMD"; | |
1358 | power = 0; | |
1359 | break; | |
80114129 MB |
1360 | case SND_SOC_DAPM_WILL_PMU: |
1361 | ev_name = "WILL_PMU"; | |
1362 | power = 1; | |
1363 | break; | |
1364 | case SND_SOC_DAPM_WILL_PMD: | |
1365 | ev_name = "WILL_PMD"; | |
1366 | power = 0; | |
1367 | break; | |
68f89ad8 | 1368 | default: |
a6ed0608 | 1369 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1370 | return; |
1371 | } | |
1372 | ||
39eb5fd1 | 1373 | if (w->new_power != power) |
68f89ad8 MB |
1374 | return; |
1375 | ||
1376 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1377 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1378 | w->name, ev_name); |
eb270e98 | 1379 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1380 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1381 | ret = w->event(w, NULL, event); |
84e90930 | 1382 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1383 | if (ret < 0) |
95dd5cd6 | 1384 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1385 | ev_name, w->name, ret); |
1386 | } | |
1387 | } | |
1388 | ||
b22ead2a | 1389 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1390 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1391 | struct list_head *pending) |
163cac06 | 1392 | { |
ce0fc93a | 1393 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1394 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1395 | int reg; |
b22ead2a MB |
1396 | unsigned int value = 0; |
1397 | unsigned int mask = 0; | |
b22ead2a | 1398 | |
ce0fc93a LPC |
1399 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1400 | reg = w->reg; | |
1401 | dapm = w->dapm; | |
b22ead2a MB |
1402 | |
1403 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1404 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1405 | w->power = w->new_power; |
b22ead2a | 1406 | |
de9ba98b LPC |
1407 | mask |= w->mask << w->shift; |
1408 | if (w->power) | |
1409 | value |= w->on_val << w->shift; | |
b22ead2a | 1410 | else |
de9ba98b | 1411 | value |= w->off_val << w->shift; |
b22ead2a | 1412 | |
ce0fc93a | 1413 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1414 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1415 | w->name, reg, value, mask); | |
81628103 | 1416 | |
68f89ad8 | 1417 | /* Check for events */ |
95dd5cd6 LPC |
1418 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1419 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1420 | } |
1421 | ||
1422 | if (reg >= 0) { | |
29376bc7 MB |
1423 | /* Any widget will do, they should all be updating the |
1424 | * same register. | |
1425 | */ | |
29376bc7 | 1426 | |
ce0fc93a | 1427 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1428 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1429 | value, mask, reg, card->pop_time); |
1430 | pop_wait(card->pop_time); | |
ce0fc93a | 1431 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1432 | } |
1433 | ||
81628103 | 1434 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1435 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1436 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1437 | } |
b22ead2a | 1438 | } |
42aa3418 | 1439 | |
b22ead2a MB |
1440 | /* Apply a DAPM power sequence. |
1441 | * | |
1442 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1443 | * order to minimise the number of writes to the device required | |
1444 | * multiple widgets will be updated in a single write where possible. | |
1445 | * Currently anything that requires more than a single write is not | |
1446 | * handled. | |
1447 | */ | |
95dd5cd6 LPC |
1448 | static void dapm_seq_run(struct snd_soc_card *card, |
1449 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1450 | { |
1451 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1452 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1453 | LIST_HEAD(pending); |
1454 | int cur_sort = -1; | |
20e4859d | 1455 | int cur_subseq = -1; |
b22ead2a | 1456 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1457 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1458 | int ret, i; |
828a842f MB |
1459 | int *sort; |
1460 | ||
1461 | if (power_up) | |
1462 | sort = dapm_up_seq; | |
1463 | else | |
1464 | sort = dapm_down_seq; | |
163cac06 | 1465 | |
b22ead2a MB |
1466 | list_for_each_entry_safe(w, n, list, power_list) { |
1467 | ret = 0; | |
1468 | ||
1469 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1470 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1471 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1472 | if (!list_empty(&pending)) |
95dd5cd6 | 1473 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1474 | |
474b62d6 MB |
1475 | if (cur_dapm && cur_dapm->seq_notifier) { |
1476 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1477 | if (sort[i] == cur_sort) | |
1478 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1479 | i, |
1480 | cur_subseq); | |
474b62d6 MB |
1481 | } |
1482 | ||
eb270e98 MB |
1483 | if (cur_dapm && w->dapm != cur_dapm) |
1484 | soc_dapm_async_complete(cur_dapm); | |
1485 | ||
b22ead2a MB |
1486 | INIT_LIST_HEAD(&pending); |
1487 | cur_sort = -1; | |
b0b3e6f8 | 1488 | cur_subseq = INT_MIN; |
b22ead2a | 1489 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1490 | cur_dapm = NULL; |
b22ead2a MB |
1491 | } |
1492 | ||
163cac06 MB |
1493 | switch (w->id) { |
1494 | case snd_soc_dapm_pre: | |
1495 | if (!w->event) | |
b22ead2a MB |
1496 | list_for_each_entry_safe_continue(w, n, list, |
1497 | power_list); | |
163cac06 | 1498 | |
b22ead2a | 1499 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1500 | ret = w->event(w, |
1501 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1502 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1503 | ret = w->event(w, |
1504 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1505 | break; |
1506 | ||
1507 | case snd_soc_dapm_post: | |
1508 | if (!w->event) | |
b22ead2a MB |
1509 | list_for_each_entry_safe_continue(w, n, list, |
1510 | power_list); | |
163cac06 | 1511 | |
b22ead2a | 1512 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1513 | ret = w->event(w, |
1514 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1515 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1516 | ret = w->event(w, |
1517 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1518 | break; |
1519 | ||
b22ead2a | 1520 | default: |
81628103 MB |
1521 | /* Queue it up for application */ |
1522 | cur_sort = sort[w->id]; | |
20e4859d | 1523 | cur_subseq = w->subseq; |
81628103 | 1524 | cur_reg = w->reg; |
7be31be8 | 1525 | cur_dapm = w->dapm; |
81628103 MB |
1526 | list_move(&w->power_list, &pending); |
1527 | break; | |
163cac06 | 1528 | } |
b22ead2a MB |
1529 | |
1530 | if (ret < 0) | |
f7d41ae8 | 1531 | dev_err(w->dapm->dev, |
30a6a1a4 | 1532 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1533 | } |
b22ead2a MB |
1534 | |
1535 | if (!list_empty(&pending)) | |
95dd5cd6 | 1536 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1537 | |
1538 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1539 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1540 | if (sort[i] == cur_sort) | |
1541 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1542 | i, cur_subseq); |
474b62d6 | 1543 | } |
eb270e98 MB |
1544 | |
1545 | list_for_each_entry(d, &card->dapm_list, list) { | |
1546 | soc_dapm_async_complete(d); | |
1547 | } | |
42aa3418 MB |
1548 | } |
1549 | ||
95dd5cd6 | 1550 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1551 | { |
95dd5cd6 | 1552 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1553 | struct snd_soc_dapm_widget_list *wlist; |
1554 | struct snd_soc_dapm_widget *w = NULL; | |
1555 | unsigned int wi; | |
97404f2e MB |
1556 | int ret; |
1557 | ||
57295073 | 1558 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1559 | return; |
1560 | ||
e84357f7 | 1561 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1562 | |
ce6cfaf1 LPC |
1563 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1564 | w = wlist->widgets[wi]; | |
1565 | ||
1566 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1567 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1568 | if (ret != 0) | |
95dd5cd6 | 1569 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1570 | w->name, ret); |
1571 | } | |
97404f2e MB |
1572 | } |
1573 | ||
ce6cfaf1 LPC |
1574 | if (!w) |
1575 | return; | |
1576 | ||
ce0fc93a LPC |
1577 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1578 | update->val); | |
97404f2e | 1579 | if (ret < 0) |
95dd5cd6 | 1580 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1581 | w->name, ret); |
97404f2e | 1582 | |
ce6cfaf1 LPC |
1583 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1584 | w = wlist->widgets[wi]; | |
1585 | ||
1586 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1587 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1588 | if (ret != 0) | |
95dd5cd6 | 1589 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1590 | w->name, ret); |
1591 | } | |
97404f2e MB |
1592 | } |
1593 | } | |
1594 | ||
9d0624a7 MB |
1595 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1596 | * they're changing state. | |
1597 | */ | |
1598 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1599 | { | |
1600 | struct snd_soc_dapm_context *d = data; | |
1601 | int ret; | |
1602 | ||
56fba41f MB |
1603 | /* If we're off and we're not supposed to be go into STANDBY */ |
1604 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1605 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1606 | if (d->dev) |
1607 | pm_runtime_get_sync(d->dev); | |
1608 | ||
9d0624a7 MB |
1609 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1610 | if (ret != 0) | |
1611 | dev_err(d->dev, | |
30a6a1a4 | 1612 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1613 | } |
1614 | ||
ce85a4d7 LPC |
1615 | /* Prepare for a transition to ON or away from ON */ |
1616 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1617 | d->bias_level != SND_SOC_BIAS_ON) || | |
1618 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1619 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1620 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1621 | if (ret != 0) | |
1622 | dev_err(d->dev, | |
30a6a1a4 | 1623 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1624 | } |
1625 | } | |
1626 | ||
1627 | /* Async callback run prior to DAPM sequences - brings to their final | |
1628 | * state. | |
1629 | */ | |
1630 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1631 | { | |
1632 | struct snd_soc_dapm_context *d = data; | |
1633 | int ret; | |
1634 | ||
1635 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1636 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1637 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1638 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1639 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1640 | if (ret != 0) | |
30a6a1a4 | 1641 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1642 | ret); |
1643 | } | |
97404f2e | 1644 | |
9d0624a7 | 1645 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1646 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1647 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1648 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1649 | if (ret != 0) | |
30a6a1a4 LG |
1650 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1651 | ret); | |
f1aac484 MB |
1652 | |
1653 | if (d->dev) | |
fb644e9c | 1654 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1655 | } |
1656 | ||
1657 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1658 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1659 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1660 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1661 | if (ret != 0) | |
30a6a1a4 | 1662 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1663 | ret); |
1664 | } | |
1665 | } | |
97404f2e | 1666 | |
fe4fda5d MB |
1667 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1668 | bool power, bool connect) | |
1669 | { | |
1670 | /* If a connection is being made or broken then that update | |
1671 | * will have marked the peer dirty, otherwise the widgets are | |
1672 | * not connected and this update has no impact. */ | |
1673 | if (!connect) | |
1674 | return; | |
1675 | ||
1676 | /* If the peer is already in the state we're moving to then we | |
1677 | * won't have an impact on it. */ | |
1678 | if (power != peer->power) | |
75c1f891 | 1679 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1680 | } |
1681 | ||
05623c43 MB |
1682 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1683 | struct list_head *up_list, | |
1684 | struct list_head *down_list) | |
1685 | { | |
db432b41 MB |
1686 | struct snd_soc_dapm_path *path; |
1687 | ||
05623c43 MB |
1688 | if (w->power == power) |
1689 | return; | |
1690 | ||
1691 | trace_snd_soc_dapm_widget_power(w, power); | |
1692 | ||
db432b41 | 1693 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1694 | * also. |
db432b41 | 1695 | */ |
e63bfd45 | 1696 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1697 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1698 | ||
6dd98b0a LPC |
1699 | /* Supplies can't affect their outputs, only their inputs */ |
1700 | if (!w->is_supply) { | |
e63bfd45 | 1701 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1702 | dapm_widget_set_peer_power(path->sink, power, |
1703 | path->connect); | |
db432b41 MB |
1704 | } |
1705 | ||
05623c43 MB |
1706 | if (power) |
1707 | dapm_seq_insert(w, up_list, true); | |
1708 | else | |
1709 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1710 | } |
1711 | ||
7c81beb0 MB |
1712 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1713 | struct list_head *up_list, | |
1714 | struct list_head *down_list) | |
1715 | { | |
7c81beb0 MB |
1716 | int power; |
1717 | ||
1718 | switch (w->id) { | |
1719 | case snd_soc_dapm_pre: | |
1720 | dapm_seq_insert(w, down_list, false); | |
1721 | break; | |
1722 | case snd_soc_dapm_post: | |
1723 | dapm_seq_insert(w, up_list, true); | |
1724 | break; | |
1725 | ||
1726 | default: | |
d805002b | 1727 | power = dapm_widget_power_check(w); |
7c81beb0 | 1728 | |
05623c43 | 1729 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1730 | break; |
1731 | } | |
1732 | } | |
1733 | ||
86dbf2ac LPC |
1734 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1735 | { | |
1736 | if (dapm->idle_bias_off) | |
1737 | return true; | |
1738 | ||
1739 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1740 | case SNDRV_CTL_POWER_D3hot: | |
1741 | case SNDRV_CTL_POWER_D3cold: | |
1742 | return dapm->suspend_bias_off; | |
1743 | default: | |
1744 | break; | |
1745 | } | |
1746 | ||
1747 | return false; | |
1748 | } | |
1749 | ||
2b97eabc RP |
1750 | /* |
1751 | * Scan each dapm widget for complete audio path. | |
1752 | * A complete path is a route that has valid endpoints i.e.:- | |
1753 | * | |
1754 | * o DAC to output pin. | |
1755 | * o Input Pin to ADC. | |
1756 | * o Input pin to Output pin (bypass, sidetone) | |
1757 | * o DAC to ADC (loopback). | |
1758 | */ | |
95dd5cd6 | 1759 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1760 | { |
1761 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1762 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1763 | LIST_HEAD(up_list); |
1764 | LIST_HEAD(down_list); | |
2955b47d | 1765 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1766 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1767 | |
f9fa2b18 MB |
1768 | lockdep_assert_held(&card->dapm_mutex); |
1769 | ||
84e90930 MB |
1770 | trace_snd_soc_dapm_start(card); |
1771 | ||
56fba41f | 1772 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1773 | if (dapm_idle_bias_off(d)) |
497098be MB |
1774 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1775 | else | |
1776 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1777 | } |
7be31be8 | 1778 | |
6c120e19 | 1779 | dapm_reset(card); |
9b8a83b2 | 1780 | |
6d3ddc81 | 1781 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1782 | * lists indicating if they should be powered up or down. We |
1783 | * only check widgets that have been flagged as dirty but note | |
1784 | * that new widgets may be added to the dirty list while we | |
1785 | * iterate. | |
6d3ddc81 | 1786 | */ |
db432b41 | 1787 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1788 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1789 | } |
1790 | ||
f9de6d74 | 1791 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1792 | switch (w->id) { |
1793 | case snd_soc_dapm_pre: | |
1794 | case snd_soc_dapm_post: | |
1795 | /* These widgets always need to be powered */ | |
1796 | break; | |
1797 | default: | |
1798 | list_del_init(&w->dirty); | |
1799 | break; | |
1800 | } | |
db432b41 | 1801 | |
39eb5fd1 | 1802 | if (w->new_power) { |
f9de6d74 MB |
1803 | d = w->dapm; |
1804 | ||
1805 | /* Supplies and micbiases only bring the | |
1806 | * context up to STANDBY as unless something | |
1807 | * else is active and passing audio they | |
afe62367 MB |
1808 | * generally don't require full power. Signal |
1809 | * generators are virtual pins and have no | |
1810 | * power impact themselves. | |
f9de6d74 MB |
1811 | */ |
1812 | switch (w->id) { | |
afe62367 | 1813 | case snd_soc_dapm_siggen: |
da83fea6 | 1814 | case snd_soc_dapm_vmid: |
afe62367 | 1815 | break; |
f9de6d74 | 1816 | case snd_soc_dapm_supply: |
62ea874a | 1817 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1818 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1819 | case snd_soc_dapm_micbias: |
1820 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1821 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1822 | break; | |
1823 | default: | |
1824 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1825 | break; | |
1826 | } | |
1827 | } | |
1828 | ||
1829 | } | |
1830 | ||
85a843c5 MB |
1831 | /* Force all contexts in the card to the same bias state if |
1832 | * they're not ground referenced. | |
1833 | */ | |
56fba41f | 1834 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1835 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1836 | if (d->target_bias_level > bias) |
1837 | bias = d->target_bias_level; | |
52ba67bf | 1838 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1839 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1840 | d->target_bias_level = bias; |
52ba67bf | 1841 | |
de02d078 | 1842 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1843 | |
17282ba4 XX |
1844 | /* Run card bias changes at first */ |
1845 | dapm_pre_sequence_async(&card->dapm, 0); | |
1846 | /* Run other bias changes in parallel */ | |
1847 | list_for_each_entry(d, &card->dapm_list, list) { | |
1848 | if (d != &card->dapm) | |
1849 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1850 | &async_domain); | |
1851 | } | |
9d0624a7 | 1852 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1853 | |
cf1f7c6e | 1854 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1855 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1856 | } |
1857 | ||
cf1f7c6e | 1858 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1859 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1860 | } |
1861 | ||
6d3ddc81 | 1862 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1863 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1864 | |
95dd5cd6 | 1865 | dapm_widget_update(card); |
97404f2e | 1866 | |
6d3ddc81 | 1867 | /* Now power up. */ |
95dd5cd6 | 1868 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1869 | |
9d0624a7 | 1870 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1871 | list_for_each_entry(d, &card->dapm_list, list) { |
1872 | if (d != &card->dapm) | |
1873 | async_schedule_domain(dapm_post_sequence_async, d, | |
1874 | &async_domain); | |
1875 | } | |
9d0624a7 | 1876 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1877 | /* Run card bias changes at last */ |
1878 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1879 | |
8078d87f LG |
1880 | /* do we need to notify any clients that DAPM event is complete */ |
1881 | list_for_each_entry(d, &card->dapm_list, list) { | |
1882 | if (d->stream_event) | |
1883 | d->stream_event(d, event); | |
1884 | } | |
1885 | ||
95dd5cd6 | 1886 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1887 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1888 | pop_wait(card->pop_time); |
cb507e7e | 1889 | |
84e90930 MB |
1890 | trace_snd_soc_dapm_done(card); |
1891 | ||
42aa3418 | 1892 | return 0; |
2b97eabc RP |
1893 | } |
1894 | ||
79fb9387 | 1895 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1896 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1897 | char __user *user_buf, | |
1898 | size_t count, loff_t *ppos) | |
1899 | { | |
1900 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 1901 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 1902 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
1903 | char *buf; |
1904 | int in, out; | |
1905 | ssize_t ret; | |
1906 | struct snd_soc_dapm_path *p = NULL; | |
1907 | ||
1908 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1909 | if (!buf) | |
1910 | return -ENOMEM; | |
1911 | ||
e50b1e06 LPC |
1912 | mutex_lock(&card->dapm_mutex); |
1913 | ||
c1862c8b LPC |
1914 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
1915 | if (w->is_supply) { | |
1916 | in = 0; | |
1917 | out = 0; | |
1918 | } else { | |
1919 | in = is_connected_input_ep(w, NULL); | |
1920 | out = is_connected_output_ep(w, NULL); | |
1921 | } | |
79fb9387 | 1922 | |
f13ebada MB |
1923 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1924 | w->name, w->power ? "On" : "Off", | |
1925 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1926 | |
d033c36a MB |
1927 | if (w->reg >= 0) |
1928 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
1929 | " - R%d(0x%x) mask 0x%x", |
1930 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
1931 | |
1932 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1933 | ||
3eef08ba MB |
1934 | if (w->sname) |
1935 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1936 | w->sname, | |
1937 | w->active ? "active" : "inactive"); | |
79fb9387 | 1938 | |
a3423b02 LPC |
1939 | snd_soc_dapm_for_each_direction(dir) { |
1940 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
1941 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
1942 | if (p->connected && !p->connected(w, p->node[rdir])) | |
1943 | continue; | |
215edda3 | 1944 | |
a3423b02 LPC |
1945 | if (!p->connect) |
1946 | continue; | |
215edda3 | 1947 | |
79fb9387 | 1948 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
1949 | " %s \"%s\" \"%s\"\n", |
1950 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 1951 | p->name ? p->name : "static", |
a3423b02 LPC |
1952 | p->node[rdir]->name); |
1953 | } | |
79fb9387 MB |
1954 | } |
1955 | ||
e50b1e06 LPC |
1956 | mutex_unlock(&card->dapm_mutex); |
1957 | ||
79fb9387 MB |
1958 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
1959 | ||
1960 | kfree(buf); | |
1961 | return ret; | |
1962 | } | |
1963 | ||
1964 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1965 | .open = simple_open, |
79fb9387 | 1966 | .read = dapm_widget_power_read_file, |
6038f373 | 1967 | .llseek = default_llseek, |
79fb9387 MB |
1968 | }; |
1969 | ||
ef49e4fa MB |
1970 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1971 | size_t count, loff_t *ppos) | |
1972 | { | |
1973 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1974 | char *level; | |
1975 | ||
1976 | switch (dapm->bias_level) { | |
1977 | case SND_SOC_BIAS_ON: | |
1978 | level = "On\n"; | |
1979 | break; | |
1980 | case SND_SOC_BIAS_PREPARE: | |
1981 | level = "Prepare\n"; | |
1982 | break; | |
1983 | case SND_SOC_BIAS_STANDBY: | |
1984 | level = "Standby\n"; | |
1985 | break; | |
1986 | case SND_SOC_BIAS_OFF: | |
1987 | level = "Off\n"; | |
1988 | break; | |
1989 | default: | |
a6ed0608 | 1990 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
1991 | level = "Unknown\n"; |
1992 | break; | |
1993 | } | |
1994 | ||
1995 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1996 | strlen(level)); | |
1997 | } | |
1998 | ||
1999 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2000 | .open = simple_open, |
ef49e4fa MB |
2001 | .read = dapm_bias_read_file, |
2002 | .llseek = default_llseek, | |
2003 | }; | |
2004 | ||
8eecaf62 LPC |
2005 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2006 | struct dentry *parent) | |
79fb9387 | 2007 | { |
79fb9387 MB |
2008 | struct dentry *d; |
2009 | ||
6553bf06 LPC |
2010 | if (!parent) |
2011 | return; | |
2012 | ||
8eecaf62 LPC |
2013 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2014 | ||
2015 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2016 | dev_warn(dapm->dev, |
30a6a1a4 | 2017 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2018 | return; |
8eecaf62 | 2019 | } |
79fb9387 | 2020 | |
ef49e4fa MB |
2021 | d = debugfs_create_file("bias_level", 0444, |
2022 | dapm->debugfs_dapm, dapm, | |
2023 | &dapm_bias_fops); | |
2024 | if (!d) | |
2025 | dev_warn(dapm->dev, | |
2026 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2027 | } |
ef49e4fa | 2028 | |
d5d1e0be LPC |
2029 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2030 | { | |
2031 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2032 | struct dentry *d; | |
79fb9387 | 2033 | |
d5d1e0be LPC |
2034 | if (!dapm->debugfs_dapm || !w->name) |
2035 | return; | |
2036 | ||
2037 | d = debugfs_create_file(w->name, 0444, | |
2038 | dapm->debugfs_dapm, w, | |
2039 | &dapm_widget_power_fops); | |
2040 | if (!d) | |
2041 | dev_warn(w->dapm->dev, | |
2042 | "ASoC: Failed to create %s debugfs file\n", | |
2043 | w->name); | |
79fb9387 | 2044 | } |
d5d1e0be | 2045 | |
6c45e126 LPC |
2046 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2047 | { | |
2048 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2049 | } | |
2050 | ||
79fb9387 | 2051 | #else |
8eecaf62 LPC |
2052 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2053 | struct dentry *parent) | |
79fb9387 MB |
2054 | { |
2055 | } | |
d5d1e0be LPC |
2056 | |
2057 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2058 | { | |
2059 | } | |
2060 | ||
6c45e126 LPC |
2061 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2062 | { | |
2063 | } | |
2064 | ||
79fb9387 MB |
2065 | #endif |
2066 | ||
4a201948 LPC |
2067 | /* |
2068 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2069 | * @path: The path to update | |
2070 | * @connect: The new connect state of the path. True if the path is connected, | |
2071 | * false if it is disconneted. | |
2072 | * @reason: The reason why the path changed (for debugging only) | |
2073 | */ | |
2074 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2075 | bool connect, const char *reason) | |
2076 | { | |
2077 | if (path->connect == connect) | |
2078 | return; | |
2079 | ||
2080 | path->connect = connect; | |
2081 | dapm_mark_dirty(path->source, reason); | |
2082 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2083 | dapm_path_invalidate(path); |
4a201948 LPC |
2084 | } |
2085 | ||
2b97eabc | 2086 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2087 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2088 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2089 | { |
2090 | struct snd_soc_dapm_path *path; | |
2091 | int found = 0; | |
4a201948 | 2092 | bool connect; |
2b97eabc | 2093 | |
f9fa2b18 MB |
2094 | lockdep_assert_held(&card->dapm_mutex); |
2095 | ||
2b97eabc | 2096 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2097 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2098 | found = 1; |
2099 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2100 | if (!(strcmp(path->name, e->texts[mux]))) |
2101 | connect = true; | |
2102 | else | |
2103 | connect = false; | |
2104 | ||
2105 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2106 | } |
2107 | ||
ce6cfaf1 | 2108 | if (found) |
95dd5cd6 | 2109 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2110 | |
618dae11 | 2111 | return found; |
2b97eabc | 2112 | } |
4edbb345 | 2113 | |
ce6cfaf1 | 2114 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2115 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2116 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2117 | { |
ce6cfaf1 | 2118 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2119 | int ret; |
2120 | ||
3cd04343 | 2121 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2122 | card->update = update; |
95dd5cd6 | 2123 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2124 | card->update = NULL; |
4edbb345 | 2125 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2126 | if (ret > 0) |
c3f48ae6 | 2127 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2128 | return ret; |
2129 | } | |
40f02cd9 | 2130 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2131 | |
1b075e3f | 2132 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2133 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
283375ce | 2134 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
2135 | { |
2136 | struct snd_soc_dapm_path *path; | |
2137 | int found = 0; | |
2138 | ||
f9fa2b18 MB |
2139 | lockdep_assert_held(&card->dapm_mutex); |
2140 | ||
2b97eabc | 2141 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2142 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc | 2143 | found = 1; |
4a201948 | 2144 | soc_dapm_connect_path(path, connect, "mixer update"); |
2b97eabc RP |
2145 | } |
2146 | ||
ce6cfaf1 | 2147 | if (found) |
95dd5cd6 | 2148 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2149 | |
618dae11 | 2150 | return found; |
2b97eabc | 2151 | } |
4edbb345 | 2152 | |
ce6cfaf1 | 2153 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2154 | struct snd_kcontrol *kcontrol, int connect, |
2155 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2156 | { |
ce6cfaf1 | 2157 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2158 | int ret; |
2159 | ||
3cd04343 | 2160 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2161 | card->update = update; |
95dd5cd6 | 2162 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
564c6504 | 2163 | card->update = NULL; |
4edbb345 | 2164 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2165 | if (ret > 0) |
c3f48ae6 | 2166 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2167 | return ret; |
2168 | } | |
40f02cd9 | 2169 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2170 | |
b3c25fb7 LPC |
2171 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2172 | char *buf) | |
2b97eabc | 2173 | { |
b3c25fb7 | 2174 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2175 | struct snd_soc_dapm_widget *w; |
2176 | int count = 0; | |
2177 | char *state = "not set"; | |
2178 | ||
b3c25fb7 LPC |
2179 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2180 | if (w->dapm != dapm) | |
97c866de | 2181 | continue; |
2b97eabc RP |
2182 | |
2183 | /* only display widgets that burnm power */ | |
2184 | switch (w->id) { | |
2185 | case snd_soc_dapm_hp: | |
2186 | case snd_soc_dapm_mic: | |
2187 | case snd_soc_dapm_spk: | |
2188 | case snd_soc_dapm_line: | |
2189 | case snd_soc_dapm_micbias: | |
2190 | case snd_soc_dapm_dac: | |
2191 | case snd_soc_dapm_adc: | |
2192 | case snd_soc_dapm_pga: | |
d88429a6 | 2193 | case snd_soc_dapm_out_drv: |
2b97eabc | 2194 | case snd_soc_dapm_mixer: |
ca9c1aae | 2195 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2196 | case snd_soc_dapm_supply: |
62ea874a | 2197 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2198 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2199 | if (w->name) |
2200 | count += sprintf(buf + count, "%s: %s\n", | |
2201 | w->name, w->power ? "On":"Off"); | |
2202 | break; | |
2203 | default: | |
2204 | break; | |
2205 | } | |
2206 | } | |
2207 | ||
b3c25fb7 | 2208 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2209 | case SND_SOC_BIAS_ON: |
2210 | state = "On"; | |
2b97eabc | 2211 | break; |
0be9898a MB |
2212 | case SND_SOC_BIAS_PREPARE: |
2213 | state = "Prepare"; | |
2b97eabc | 2214 | break; |
0be9898a MB |
2215 | case SND_SOC_BIAS_STANDBY: |
2216 | state = "Standby"; | |
2b97eabc | 2217 | break; |
0be9898a MB |
2218 | case SND_SOC_BIAS_OFF: |
2219 | state = "Off"; | |
2b97eabc RP |
2220 | break; |
2221 | } | |
2222 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2223 | ||
2224 | return count; | |
2225 | } | |
2226 | ||
44ba2641 BC |
2227 | /* show dapm widget status in sys fs */ |
2228 | static ssize_t dapm_widget_show(struct device *dev, | |
2229 | struct device_attribute *attr, char *buf) | |
2230 | { | |
2231 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2232 | int i, count = 0; | |
2233 | ||
e50b1e06 LPC |
2234 | mutex_lock(&rtd->card->dapm_mutex); |
2235 | ||
44ba2641 | 2236 | for (i = 0; i < rtd->num_codecs; i++) { |
b3c25fb7 LPC |
2237 | struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; |
2238 | ||
2239 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2240 | } |
2241 | ||
e50b1e06 LPC |
2242 | mutex_unlock(&rtd->card->dapm_mutex); |
2243 | ||
44ba2641 BC |
2244 | return count; |
2245 | } | |
2246 | ||
2b97eabc RP |
2247 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
2248 | ||
d29697dc TI |
2249 | struct attribute *soc_dapm_dev_attrs[] = { |
2250 | &dev_attr_dapm_widget.attr, | |
2251 | NULL | |
2252 | }; | |
2b97eabc | 2253 | |
8872293f LPC |
2254 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2255 | { | |
a3423b02 LPC |
2256 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2257 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2258 | list_del(&path->list_kcontrol); |
8872293f | 2259 | list_del(&path->list); |
8872293f LPC |
2260 | kfree(path); |
2261 | } | |
2262 | ||
b97e2698 LPC |
2263 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2264 | { | |
2265 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2266 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2267 | |
2268 | list_del(&w->list); | |
2269 | /* | |
2270 | * remove source and sink paths associated to this widget. | |
2271 | * While removing the path, remove reference to it from both | |
2272 | * source and sink widgets so that path is removed only once. | |
2273 | */ | |
a3423b02 LPC |
2274 | snd_soc_dapm_for_each_direction(dir) { |
2275 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2276 | dapm_free_path(p); | |
2277 | } | |
b97e2698 LPC |
2278 | |
2279 | kfree(w->kcontrols); | |
48068961 | 2280 | kfree_const(w->name); |
b97e2698 LPC |
2281 | kfree(w); |
2282 | } | |
2283 | ||
2b97eabc | 2284 | /* free all dapm widgets and resources */ |
ce6120cc | 2285 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2286 | { |
2287 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2288 | |
97c866de JN |
2289 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2290 | if (w->dapm != dapm) | |
2291 | continue; | |
b97e2698 | 2292 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2293 | } |
2b97eabc RP |
2294 | } |
2295 | ||
91a5fca4 LPC |
2296 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2297 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2298 | bool search_other_contexts) | |
a5302181 LG |
2299 | { |
2300 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2301 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2302 | |
97c866de | 2303 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2304 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2305 | if (w->dapm == dapm) |
2306 | return w; | |
2307 | else | |
2308 | fallback = w; | |
a5302181 LG |
2309 | } |
2310 | } | |
2311 | ||
91a5fca4 LPC |
2312 | if (search_other_contexts) |
2313 | return fallback; | |
2314 | ||
2315 | return NULL; | |
2316 | } | |
2317 | ||
2318 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2319 | const char *pin, int status) | |
2320 | { | |
2321 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2322 | ||
f9fa2b18 MB |
2323 | dapm_assert_locked(dapm); |
2324 | ||
91a5fca4 | 2325 | if (!w) { |
30a6a1a4 | 2326 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2327 | return -EINVAL; |
0d86733c MB |
2328 | } |
2329 | ||
92a99ea4 | 2330 | if (w->connected != status) { |
1a8b2d9d | 2331 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2332 | dapm_widget_invalidate_input_paths(w); |
2333 | dapm_widget_invalidate_output_paths(w); | |
2334 | } | |
1a8b2d9d | 2335 | |
91a5fca4 LPC |
2336 | w->connected = status; |
2337 | if (status == 0) | |
2338 | w->force = 0; | |
2339 | ||
2340 | return 0; | |
a5302181 LG |
2341 | } |
2342 | ||
2b97eabc | 2343 | /** |
3eb29dfb | 2344 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2345 | * @dapm: DAPM context |
2b97eabc RP |
2346 | * |
2347 | * Walks all dapm audio paths and powers widgets according to their | |
2348 | * stream or path usage. | |
2349 | * | |
3eb29dfb CK |
2350 | * Requires external locking. |
2351 | * | |
2b97eabc RP |
2352 | * Returns 0 for success. |
2353 | */ | |
3eb29dfb | 2354 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2355 | { |
4f4c0072 MB |
2356 | /* |
2357 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2358 | * silly DAPM runs during card startup. | |
2359 | */ | |
2360 | if (!dapm->card || !dapm->card->instantiated) | |
2361 | return 0; | |
2362 | ||
3eb29dfb CK |
2363 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2364 | } | |
2365 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2366 | ||
2367 | /** | |
2368 | * snd_soc_dapm_sync - scan and power dapm paths | |
2369 | * @dapm: DAPM context | |
2370 | * | |
2371 | * Walks all dapm audio paths and powers widgets according to their | |
2372 | * stream or path usage. | |
2373 | * | |
2374 | * Returns 0 for success. | |
2375 | */ | |
2376 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2377 | { | |
2378 | int ret; | |
2379 | ||
3cd04343 | 2380 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2381 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2382 | mutex_unlock(&dapm->card->dapm_mutex); |
2383 | return ret; | |
2b97eabc | 2384 | } |
a5302181 | 2385 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2386 | |
6dd98b0a LPC |
2387 | /* |
2388 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2389 | * @w: The widget for which to update the flags | |
2390 | * | |
2391 | * Some widgets have a dynamic category which depends on which neighbors they | |
2392 | * are connected to. This function update the category for these widgets. | |
2393 | * | |
2394 | * This function must be called whenever a path is added or removed to a widget. | |
2395 | */ | |
2396 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2397 | { | |
a3423b02 | 2398 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2399 | struct snd_soc_dapm_path *p; |
a3423b02 | 2400 | unsigned int ep; |
6dd98b0a LPC |
2401 | |
2402 | switch (w->id) { | |
2403 | case snd_soc_dapm_input: | |
86d75003 LPC |
2404 | /* On a fully routed card a input is never a source */ |
2405 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2406 | return; |
2407 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2408 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2409 | if (p->source->id == snd_soc_dapm_micbias || |
2410 | p->source->id == snd_soc_dapm_mic || | |
2411 | p->source->id == snd_soc_dapm_line || | |
2412 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2413 | ep = 0; |
6dd98b0a LPC |
2414 | break; |
2415 | } | |
2416 | } | |
2417 | break; | |
2418 | case snd_soc_dapm_output: | |
86d75003 LPC |
2419 | /* On a fully routed card a output is never a sink */ |
2420 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2421 | return; |
2422 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2423 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2424 | if (p->sink->id == snd_soc_dapm_spk || |
2425 | p->sink->id == snd_soc_dapm_hp || | |
2426 | p->sink->id == snd_soc_dapm_line || | |
2427 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2428 | ep = 0; |
6dd98b0a LPC |
2429 | break; |
2430 | } | |
2431 | } | |
2432 | break; | |
2433 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2434 | ep = 0; |
2435 | snd_soc_dapm_for_each_direction(dir) { | |
2436 | if (!list_empty(&w->edges[dir])) | |
2437 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2438 | } | |
6dd98b0a LPC |
2439 | break; |
2440 | default: | |
a3423b02 | 2441 | return; |
6dd98b0a | 2442 | } |
a3423b02 LPC |
2443 | |
2444 | w->is_ep = ep; | |
6dd98b0a LPC |
2445 | } |
2446 | ||
d714f97c LPC |
2447 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2448 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2449 | const char *control) | |
2450 | { | |
2451 | bool dynamic_source = false; | |
2452 | bool dynamic_sink = false; | |
2453 | ||
2454 | if (!control) | |
2455 | return 0; | |
2456 | ||
2457 | switch (source->id) { | |
2458 | case snd_soc_dapm_demux: | |
2459 | dynamic_source = true; | |
2460 | break; | |
2461 | default: | |
2462 | break; | |
2463 | } | |
2464 | ||
2465 | switch (sink->id) { | |
2466 | case snd_soc_dapm_mux: | |
2467 | case snd_soc_dapm_switch: | |
2468 | case snd_soc_dapm_mixer: | |
2469 | case snd_soc_dapm_mixer_named_ctl: | |
2470 | dynamic_sink = true; | |
2471 | break; | |
2472 | default: | |
2473 | break; | |
2474 | } | |
2475 | ||
2476 | if (dynamic_source && dynamic_sink) { | |
2477 | dev_err(dapm->dev, | |
2478 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2479 | source->name, control, sink->name); | |
2480 | return -EINVAL; | |
2481 | } else if (!dynamic_source && !dynamic_sink) { | |
2482 | dev_err(dapm->dev, | |
2483 | "Control not supported for path %s -> [%s] -> %s\n", | |
2484 | source->name, control, sink->name); | |
2485 | return -EINVAL; | |
2486 | } | |
2487 | ||
2488 | return 0; | |
2489 | } | |
2490 | ||
2553628e LPC |
2491 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2492 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2493 | const char *control, | |
2494 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2495 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2496 | { |
a3423b02 LPC |
2497 | struct snd_soc_dapm_widget *widgets[2]; |
2498 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2499 | struct snd_soc_dapm_path *path; |
2553628e | 2500 | int ret; |
2b97eabc | 2501 | |
e409dfbf LPC |
2502 | if (wsink->is_supply && !wsource->is_supply) { |
2503 | dev_err(dapm->dev, | |
2504 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2505 | wsource->name, wsink->name); | |
2506 | return -EINVAL; | |
2507 | } | |
2508 | ||
2509 | if (connected && !wsource->is_supply) { | |
2510 | dev_err(dapm->dev, | |
2511 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2512 | wsource->name, wsink->name); | |
2513 | return -EINVAL; | |
2514 | } | |
2515 | ||
2516 | if (wsource->is_supply && control) { | |
2517 | dev_err(dapm->dev, | |
2518 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2519 | wsource->name, control, wsink->name); | |
2520 | return -EINVAL; | |
2521 | } | |
2522 | ||
d714f97c LPC |
2523 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2524 | if (ret) | |
2525 | return ret; | |
2526 | ||
2b97eabc RP |
2527 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2528 | if (!path) | |
2529 | return -ENOMEM; | |
2530 | ||
a3423b02 LPC |
2531 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2532 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2533 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2534 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2535 | ||
2553628e | 2536 | path->connected = connected; |
2b97eabc | 2537 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2538 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2539 | |
c1862c8b LPC |
2540 | if (wsource->is_supply || wsink->is_supply) |
2541 | path->is_supply = 1; | |
2542 | ||
2b97eabc RP |
2543 | /* connect static paths */ |
2544 | if (control == NULL) { | |
2b97eabc | 2545 | path->connect = 1; |
5fe5b767 | 2546 | } else { |
d714f97c LPC |
2547 | switch (wsource->id) { |
2548 | case snd_soc_dapm_demux: | |
2549 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2550 | if (ret) | |
2551 | goto err; | |
2552 | break; | |
2553 | default: | |
2554 | break; | |
2555 | } | |
2556 | ||
5fe5b767 LPC |
2557 | switch (wsink->id) { |
2558 | case snd_soc_dapm_mux: | |
d714f97c | 2559 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2560 | if (ret != 0) |
2561 | goto err; | |
2562 | break; | |
2563 | case snd_soc_dapm_switch: | |
2564 | case snd_soc_dapm_mixer: | |
2565 | case snd_soc_dapm_mixer_named_ctl: | |
2566 | ret = dapm_connect_mixer(dapm, path, control); | |
2567 | if (ret != 0) | |
2568 | goto err; | |
2569 | break; | |
2570 | default: | |
d714f97c | 2571 | break; |
5fe5b767 | 2572 | } |
2b97eabc | 2573 | } |
fabd0384 | 2574 | |
5fe5b767 | 2575 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2576 | snd_soc_dapm_for_each_direction(dir) |
2577 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2578 | |
a3423b02 LPC |
2579 | snd_soc_dapm_for_each_direction(dir) { |
2580 | dapm_update_widget_flags(widgets[dir]); | |
2581 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2582 | } | |
5fe5b767 | 2583 | |
92a99ea4 LPC |
2584 | if (dapm->card->instantiated && path->connect) |
2585 | dapm_path_invalidate(path); | |
2586 | ||
2b97eabc | 2587 | return 0; |
2553628e LPC |
2588 | err: |
2589 | kfree(path); | |
2590 | return ret; | |
2591 | } | |
2b97eabc | 2592 | |
2553628e | 2593 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2594 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2595 | { |
2596 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2597 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2598 | const char *sink; | |
2599 | const char *source; | |
2600 | char prefixed_sink[80]; | |
2601 | char prefixed_source[80]; | |
94f99c87 | 2602 | const char *prefix; |
2553628e LPC |
2603 | int ret; |
2604 | ||
94f99c87 LPC |
2605 | prefix = soc_dapm_prefix(dapm); |
2606 | if (prefix) { | |
2553628e | 2607 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2608 | prefix, route->sink); |
2553628e LPC |
2609 | sink = prefixed_sink; |
2610 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2611 | prefix, route->source); |
2553628e LPC |
2612 | source = prefixed_source; |
2613 | } else { | |
2614 | sink = route->sink; | |
2615 | source = route->source; | |
2616 | } | |
2617 | ||
45a110a1 CK |
2618 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2619 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2620 | ||
2621 | if (wsink && wsource) | |
2622 | goto skip_search; | |
2623 | ||
2553628e LPC |
2624 | /* |
2625 | * find src and dest widgets over all widgets but favor a widget from | |
2626 | * current DAPM context | |
2627 | */ | |
2628 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2629 | if (!wsink && !(strcmp(w->name, sink))) { | |
2630 | wtsink = w; | |
70c75109 | 2631 | if (w->dapm == dapm) { |
2553628e | 2632 | wsink = w; |
70c75109 CK |
2633 | if (wsource) |
2634 | break; | |
2635 | } | |
2553628e LPC |
2636 | continue; |
2637 | } | |
2638 | if (!wsource && !(strcmp(w->name, source))) { | |
2639 | wtsource = w; | |
70c75109 | 2640 | if (w->dapm == dapm) { |
2553628e | 2641 | wsource = w; |
70c75109 CK |
2642 | if (wsink) |
2643 | break; | |
2644 | } | |
2553628e LPC |
2645 | } |
2646 | } | |
2647 | /* use widget from another DAPM context if not found from this */ | |
2648 | if (!wsink) | |
2649 | wsink = wtsink; | |
2650 | if (!wsource) | |
2651 | wsource = wtsource; | |
2652 | ||
2653 | if (wsource == NULL) { | |
2654 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2655 | route->source); | |
2656 | return -ENODEV; | |
2657 | } | |
2658 | if (wsink == NULL) { | |
2659 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2660 | route->sink); | |
2661 | return -ENODEV; | |
2662 | } | |
2663 | ||
45a110a1 CK |
2664 | skip_search: |
2665 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2666 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2667 | ||
2553628e LPC |
2668 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2669 | route->connected); | |
2670 | if (ret) | |
2671 | goto err; | |
2672 | ||
2673 | return 0; | |
2b97eabc | 2674 | err: |
30a6a1a4 | 2675 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2676 | source, route->control, sink); |
2b97eabc RP |
2677 | return ret; |
2678 | } | |
105f1c28 | 2679 | |
efcc3c61 MB |
2680 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2681 | const struct snd_soc_dapm_route *route) | |
2682 | { | |
6dd98b0a | 2683 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2684 | struct snd_soc_dapm_path *path, *p; |
2685 | const char *sink; | |
2686 | const char *source; | |
2687 | char prefixed_sink[80]; | |
2688 | char prefixed_source[80]; | |
94f99c87 | 2689 | const char *prefix; |
efcc3c61 MB |
2690 | |
2691 | if (route->control) { | |
2692 | dev_err(dapm->dev, | |
30a6a1a4 | 2693 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2694 | return -EINVAL; |
2695 | } | |
2696 | ||
94f99c87 LPC |
2697 | prefix = soc_dapm_prefix(dapm); |
2698 | if (prefix) { | |
efcc3c61 | 2699 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2700 | prefix, route->sink); |
efcc3c61 MB |
2701 | sink = prefixed_sink; |
2702 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2703 | prefix, route->source); |
efcc3c61 MB |
2704 | source = prefixed_source; |
2705 | } else { | |
2706 | sink = route->sink; | |
2707 | source = route->source; | |
2708 | } | |
2709 | ||
2710 | path = NULL; | |
2711 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2712 | if (strcmp(p->source->name, source) != 0) | |
2713 | continue; | |
2714 | if (strcmp(p->sink->name, sink) != 0) | |
2715 | continue; | |
2716 | path = p; | |
2717 | break; | |
2718 | } | |
2719 | ||
2720 | if (path) { | |
6dd98b0a LPC |
2721 | wsource = path->source; |
2722 | wsink = path->sink; | |
2723 | ||
2724 | dapm_mark_dirty(wsource, "Route removed"); | |
2725 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2726 | if (path->connect) |
2727 | dapm_path_invalidate(path); | |
efcc3c61 | 2728 | |
8872293f | 2729 | dapm_free_path(path); |
6dd98b0a LPC |
2730 | |
2731 | /* Update any path related flags */ | |
2732 | dapm_update_widget_flags(wsource); | |
2733 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2734 | } else { |
30a6a1a4 | 2735 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2736 | source, sink); |
2737 | } | |
2738 | ||
2739 | return 0; | |
2740 | } | |
2741 | ||
105f1c28 MB |
2742 | /** |
2743 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2744 | * @dapm: DAPM context |
105f1c28 MB |
2745 | * @route: audio routes |
2746 | * @num: number of routes | |
2747 | * | |
2748 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2749 | * the widget receiving the audio signal, whilst the source is the sender | |
2750 | * of the audio signal. | |
2751 | * | |
2752 | * Returns 0 for success else error. On error all resources can be freed | |
2753 | * with a call to snd_soc_card_free(). | |
2754 | */ | |
ce6120cc | 2755 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2756 | const struct snd_soc_dapm_route *route, int num) |
2757 | { | |
62d4a4b9 | 2758 | int i, r, ret = 0; |
105f1c28 | 2759 | |
a73fb2df | 2760 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2761 | for (i = 0; i < num; i++) { |
a4e9154c | 2762 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2763 | if (r < 0) { |
30a6a1a4 LG |
2764 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2765 | route->source, | |
2766 | route->control ? route->control : "direct", | |
2767 | route->sink); | |
62d4a4b9 | 2768 | ret = r; |
105f1c28 MB |
2769 | } |
2770 | route++; | |
2771 | } | |
a73fb2df | 2772 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2773 | |
60884c27 | 2774 | return ret; |
105f1c28 MB |
2775 | } |
2776 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2777 | ||
efcc3c61 MB |
2778 | /** |
2779 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2780 | * @dapm: DAPM context | |
2781 | * @route: audio routes | |
2782 | * @num: number of routes | |
2783 | * | |
2784 | * Removes routes from the DAPM context. | |
2785 | */ | |
2786 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2787 | const struct snd_soc_dapm_route *route, int num) | |
2788 | { | |
2789 | int i, ret = 0; | |
2790 | ||
2791 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2792 | for (i = 0; i < num; i++) { | |
2793 | snd_soc_dapm_del_route(dapm, route); | |
2794 | route++; | |
2795 | } | |
2796 | mutex_unlock(&dapm->card->dapm_mutex); | |
2797 | ||
2798 | return ret; | |
2799 | } | |
2800 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2801 | ||
bf3a9e13 MB |
2802 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2803 | const struct snd_soc_dapm_route *route) | |
2804 | { | |
2805 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2806 | route->source, | |
2807 | true); | |
2808 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2809 | route->sink, | |
2810 | true); | |
2811 | struct snd_soc_dapm_path *path; | |
2812 | int count = 0; | |
2813 | ||
2814 | if (!source) { | |
30a6a1a4 | 2815 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2816 | route->source); |
2817 | return -ENODEV; | |
2818 | } | |
2819 | ||
2820 | if (!sink) { | |
30a6a1a4 | 2821 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2822 | route->sink); |
2823 | return -ENODEV; | |
2824 | } | |
2825 | ||
2826 | if (route->control || route->connected) | |
30a6a1a4 | 2827 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2828 | route->source, route->sink); |
2829 | ||
e63bfd45 | 2830 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
2831 | if (path->sink == sink) { |
2832 | path->weak = 1; | |
2833 | count++; | |
2834 | } | |
2835 | } | |
2836 | ||
2837 | if (count == 0) | |
30a6a1a4 | 2838 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2839 | route->source, route->sink); |
2840 | if (count > 1) | |
30a6a1a4 | 2841 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2842 | count, route->source, route->sink); |
2843 | ||
2844 | return 0; | |
2845 | } | |
2846 | ||
2847 | /** | |
2848 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2849 | * @dapm: DAPM context | |
2850 | * @route: audio routes | |
2851 | * @num: number of routes | |
2852 | * | |
2853 | * Mark existing routes matching those specified in the passed array | |
2854 | * as being weak, meaning that they are ignored for the purpose of | |
2855 | * power decisions. The main intended use case is for sidetone paths | |
2856 | * which couple audio between other independent paths if they are both | |
2857 | * active in order to make the combination work better at the user | |
2858 | * level but which aren't intended to be "used". | |
2859 | * | |
2860 | * Note that CODEC drivers should not use this as sidetone type paths | |
2861 | * can frequently also be used as bypass paths. | |
2862 | */ | |
2863 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2864 | const struct snd_soc_dapm_route *route, int num) | |
2865 | { | |
2866 | int i, err; | |
2867 | int ret = 0; | |
2868 | ||
a73fb2df | 2869 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2870 | for (i = 0; i < num; i++) { |
2871 | err = snd_soc_dapm_weak_route(dapm, route); | |
2872 | if (err) | |
2873 | ret = err; | |
2874 | route++; | |
2875 | } | |
a73fb2df | 2876 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2877 | |
2878 | return ret; | |
2879 | } | |
2880 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2881 | ||
2b97eabc RP |
2882 | /** |
2883 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 2884 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
2885 | * |
2886 | * Checks the codec for any new dapm widgets and creates them if found. | |
2887 | * | |
2888 | * Returns 0 for success. | |
2889 | */ | |
824ef826 | 2890 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
2891 | { |
2892 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2893 | unsigned int val; |
2b97eabc | 2894 | |
95dd5cd6 | 2895 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 2896 | |
95dd5cd6 | 2897 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
2898 | { |
2899 | if (w->new) | |
2900 | continue; | |
2901 | ||
fad59888 SW |
2902 | if (w->num_kcontrols) { |
2903 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2904 | sizeof(struct snd_kcontrol *), | |
2905 | GFP_KERNEL); | |
a73fb2df | 2906 | if (!w->kcontrols) { |
95dd5cd6 | 2907 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 2908 | return -ENOMEM; |
a73fb2df | 2909 | } |
fad59888 SW |
2910 | } |
2911 | ||
2b97eabc RP |
2912 | switch(w->id) { |
2913 | case snd_soc_dapm_switch: | |
2914 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2915 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2916 | dapm_new_mixer(w); |
2b97eabc RP |
2917 | break; |
2918 | case snd_soc_dapm_mux: | |
d714f97c | 2919 | case snd_soc_dapm_demux: |
4b80b8c2 | 2920 | dapm_new_mux(w); |
2b97eabc | 2921 | break; |
2b97eabc | 2922 | case snd_soc_dapm_pga: |
d88429a6 | 2923 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2924 | dapm_new_pga(w); |
2b97eabc | 2925 | break; |
c6615082 NO |
2926 | case snd_soc_dapm_dai_link: |
2927 | dapm_new_dai_link(w); | |
2928 | break; | |
7ca3a18b | 2929 | default: |
2b97eabc RP |
2930 | break; |
2931 | } | |
b66a70d5 MB |
2932 | |
2933 | /* Read the initial power state from the device */ | |
2934 | if (w->reg >= 0) { | |
ce0fc93a | 2935 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 2936 | val = val >> w->shift; |
de9ba98b LPC |
2937 | val &= w->mask; |
2938 | if (val == w->on_val) | |
b66a70d5 MB |
2939 | w->power = 1; |
2940 | } | |
2941 | ||
2b97eabc | 2942 | w->new = 1; |
d5d1e0be | 2943 | |
7508b12a | 2944 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2945 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2946 | } |
2947 | ||
95dd5cd6 LPC |
2948 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2949 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
2950 | return 0; |
2951 | } | |
2952 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2953 | ||
2954 | /** | |
2955 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2956 | * @kcontrol: mixer control | |
ac11a2b3 | 2957 | * @ucontrol: control element information |
2b97eabc RP |
2958 | * |
2959 | * Callback to get the value of a dapm mixer control. | |
2960 | * | |
2961 | * Returns 0 for success. | |
2962 | */ | |
2963 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2964 | struct snd_ctl_elem_value *ucontrol) | |
2965 | { | |
ce0fc93a LPC |
2966 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
2967 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
2968 | struct soc_mixer_control *mc = |
2969 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 2970 | int reg = mc->reg; |
815ecf8d | 2971 | unsigned int shift = mc->shift; |
4eaa9819 | 2972 | int max = mc->max; |
815ecf8d | 2973 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 2974 | unsigned int invert = mc->invert; |
57295073 | 2975 | unsigned int val; |
ce0fc93a | 2976 | int ret = 0; |
da602ab8 BT |
2977 | |
2978 | if (snd_soc_volsw_is_stereo(mc)) | |
ce0fc93a | 2979 | dev_warn(dapm->dev, |
30a6a1a4 | 2980 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2981 | kcontrol->id.name); |
2b97eabc | 2982 | |
57295073 | 2983 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a LPC |
2984 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
2985 | ret = soc_dapm_read(dapm, reg, &val); | |
2986 | val = (val >> shift) & mask; | |
2987 | } else { | |
57295073 | 2988 | val = dapm_kcontrol_get_value(kcontrol); |
ce0fc93a | 2989 | } |
57295073 LPC |
2990 | mutex_unlock(&card->dapm_mutex); |
2991 | ||
da602ab8 | 2992 | if (invert) |
57295073 LPC |
2993 | ucontrol->value.integer.value[0] = max - val; |
2994 | else | |
2995 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 2996 | |
ce0fc93a | 2997 | return ret; |
2b97eabc RP |
2998 | } |
2999 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3000 | ||
3001 | /** | |
3002 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3003 | * @kcontrol: mixer control | |
ac11a2b3 | 3004 | * @ucontrol: control element information |
2b97eabc RP |
3005 | * |
3006 | * Callback to set the value of a dapm mixer control. | |
3007 | * | |
3008 | * Returns 0 for success. | |
3009 | */ | |
3010 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3011 | struct snd_ctl_elem_value *ucontrol) | |
3012 | { | |
ce0fc93a LPC |
3013 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3014 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3015 | struct soc_mixer_control *mc = |
3016 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3017 | int reg = mc->reg; |
815ecf8d | 3018 | unsigned int shift = mc->shift; |
4eaa9819 | 3019 | int max = mc->max; |
815ecf8d JS |
3020 | unsigned int mask = (1 << fls(max)) - 1; |
3021 | unsigned int invert = mc->invert; | |
e9cf7049 | 3022 | unsigned int val; |
18626c7e | 3023 | int connect, change, reg_change = 0; |
97404f2e | 3024 | struct snd_soc_dapm_update update; |
52765976 | 3025 | int ret = 0; |
2b97eabc | 3026 | |
da602ab8 | 3027 | if (snd_soc_volsw_is_stereo(mc)) |
ce0fc93a | 3028 | dev_warn(dapm->dev, |
30a6a1a4 | 3029 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
3030 | kcontrol->id.name); |
3031 | ||
2b97eabc | 3032 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 3033 | connect = !!val; |
2b97eabc RP |
3034 | |
3035 | if (invert) | |
a7a4ac86 | 3036 | val = max - val; |
2b97eabc | 3037 | |
3cd04343 | 3038 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3039 | |
249ce138 | 3040 | change = dapm_kcontrol_set_value(kcontrol, val); |
97404f2e | 3041 | |
18626c7e JN |
3042 | if (reg != SND_SOC_NOPM) { |
3043 | mask = mask << shift; | |
3044 | val = val << shift; | |
3045 | ||
ce0fc93a | 3046 | reg_change = soc_dapm_test_bits(dapm, reg, mask, val); |
18626c7e JN |
3047 | } |
3048 | ||
3049 | if (change || reg_change) { | |
3050 | if (reg_change) { | |
3051 | update.kcontrol = kcontrol; | |
3052 | update.reg = reg; | |
3053 | update.mask = mask; | |
3054 | update.val = val; | |
3055 | card->update = &update; | |
249ce138 | 3056 | } |
18626c7e | 3057 | change |= reg_change; |
97404f2e | 3058 | |
52765976 | 3059 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect); |
fafd2176 | 3060 | |
564c6504 | 3061 | card->update = NULL; |
283375ce MB |
3062 | } |
3063 | ||
a73fb2df | 3064 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3065 | |
3066 | if (ret > 0) | |
3067 | soc_dpcm_runtime_update(card); | |
3068 | ||
56a67834 | 3069 | return change; |
2b97eabc RP |
3070 | } |
3071 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3072 | ||
3073 | /** | |
3074 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3075 | * @kcontrol: mixer control | |
ac11a2b3 | 3076 | * @ucontrol: control element information |
2b97eabc RP |
3077 | * |
3078 | * Callback to get the value of a dapm enumerated double mixer control. | |
3079 | * | |
3080 | * Returns 0 for success. | |
3081 | */ | |
3082 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3083 | struct snd_ctl_elem_value *ucontrol) | |
3084 | { | |
ce0fc93a | 3085 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3086 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3087 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3088 | unsigned int reg_val, val; |
52765976 | 3089 | |
561ed680 CK |
3090 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3091 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3092 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3093 | if (ret) { |
3094 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3095 | return ret; |
964a0b89 | 3096 | } |
69128316 | 3097 | } else { |
236aaa68 | 3098 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3099 | } |
561ed680 | 3100 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3101 | |
2e72f8e3 | 3102 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3103 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3104 | if (e->shift_l != e->shift_r) { |
3105 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3106 | val = snd_soc_enum_val_to_item(e, val); |
3107 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3108 | } |
3109 | ||
69128316 | 3110 | return 0; |
2e72f8e3 | 3111 | } |
2b97eabc | 3112 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3113 | |
3114 | /** | |
2b97eabc | 3115 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3116 | * @kcontrol: mixer control |
3117 | * @ucontrol: control element information | |
3118 | * | |
2b97eabc | 3119 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3120 | * |
3121 | * Returns 0 for success. | |
3122 | */ | |
2b97eabc | 3123 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3124 | struct snd_ctl_elem_value *ucontrol) |
3125 | { | |
ce0fc93a LPC |
3126 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3127 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3128 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3129 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3130 | unsigned int val, change, reg_change = 0; |
46f5822f | 3131 | unsigned int mask; |
97404f2e | 3132 | struct snd_soc_dapm_update update; |
52765976 | 3133 | int ret = 0; |
2e72f8e3 | 3134 | |
3727b496 | 3135 | if (item[0] >= e->items) |
2e72f8e3 | 3136 | return -EINVAL; |
3727b496 LPC |
3137 | |
3138 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3139 | mask = e->mask << e->shift_l; |
3140 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3141 | if (item[1] > e->items) |
2e72f8e3 | 3142 | return -EINVAL; |
3727b496 | 3143 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; |
2e72f8e3 PU |
3144 | mask |= e->mask << e->shift_r; |
3145 | } | |
3146 | ||
3cd04343 | 3147 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3148 | |
561ed680 CK |
3149 | change = dapm_kcontrol_set_value(kcontrol, val); |
3150 | ||
236aaa68 | 3151 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3152 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3153 | |
561ed680 CK |
3154 | if (change || reg_change) { |
3155 | if (reg_change) { | |
236aaa68 LPC |
3156 | update.kcontrol = kcontrol; |
3157 | update.reg = e->reg; | |
3158 | update.mask = mask; | |
3159 | update.val = val; | |
3160 | card->update = &update; | |
3161 | } | |
561ed680 | 3162 | change |= reg_change; |
1642e3d4 | 3163 | |
3727b496 | 3164 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3165 | |
564c6504 | 3166 | card->update = NULL; |
fafd2176 | 3167 | } |
2e72f8e3 | 3168 | |
a73fb2df | 3169 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3170 | |
3171 | if (ret > 0) | |
3172 | soc_dpcm_runtime_update(card); | |
3173 | ||
97404f2e | 3174 | return change; |
2e72f8e3 | 3175 | } |
2b97eabc | 3176 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3177 | |
8b37dbd2 MB |
3178 | /** |
3179 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3180 | * | |
3181 | * @kcontrol: mixer control | |
3182 | * @uinfo: control element information | |
3183 | * | |
3184 | * Callback to provide information about a pin switch control. | |
3185 | */ | |
3186 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3187 | struct snd_ctl_elem_info *uinfo) | |
3188 | { | |
3189 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3190 | uinfo->count = 1; | |
3191 | uinfo->value.integer.min = 0; | |
3192 | uinfo->value.integer.max = 1; | |
3193 | ||
3194 | return 0; | |
3195 | } | |
3196 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3197 | ||
3198 | /** | |
3199 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3200 | * | |
3201 | * @kcontrol: mixer control | |
3202 | * @ucontrol: Value | |
3203 | */ | |
3204 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3205 | struct snd_ctl_elem_value *ucontrol) | |
3206 | { | |
48a8c394 | 3207 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3208 | const char *pin = (const char *)kcontrol->private_value; |
3209 | ||
3cd04343 | 3210 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3211 | |
3212 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3213 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3214 | |
a73fb2df | 3215 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3216 | |
3217 | return 0; | |
3218 | } | |
3219 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3220 | ||
3221 | /** | |
3222 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3223 | * | |
3224 | * @kcontrol: mixer control | |
3225 | * @ucontrol: Value | |
3226 | */ | |
3227 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3228 | struct snd_ctl_elem_value *ucontrol) | |
3229 | { | |
48a8c394 | 3230 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3231 | const char *pin = (const char *)kcontrol->private_value; |
3232 | ||
8b37dbd2 | 3233 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3234 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3235 | else |
48a8c394 | 3236 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3237 | |
a73fb2df | 3238 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3239 | return 0; |
3240 | } | |
3241 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3242 | ||
cc76e7de | 3243 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3244 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3245 | const struct snd_soc_dapm_widget *widget) |
3246 | { | |
3247 | struct snd_soc_dapm_widget *w; | |
3248 | ||
3249 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3250 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3251 | if (!w) | |
3252 | dev_err(dapm->dev, | |
3253 | "ASoC: Failed to create DAPM control %s\n", | |
3254 | widget->name); | |
3255 | ||
3256 | mutex_unlock(&dapm->card->dapm_mutex); | |
3257 | return w; | |
3258 | } | |
3259 | ||
3260 | struct snd_soc_dapm_widget * | |
3261 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3262 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3263 | { |
a3423b02 | 3264 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3265 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3266 | const char *prefix; |
62ea874a | 3267 | int ret; |
2b97eabc RP |
3268 | |
3269 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3270 | return NULL; |
2b97eabc | 3271 | |
62ea874a MB |
3272 | switch (w->id) { |
3273 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3274 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3275 | if (IS_ERR(w->regulator)) { | |
3276 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3277 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3278 | w->name, ret); |
5ba06fc9 | 3279 | return NULL; |
62ea874a | 3280 | } |
8784c77a | 3281 | |
de9ba98b | 3282 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3283 | ret = regulator_allow_bypass(w->regulator, true); |
3284 | if (ret != 0) | |
3285 | dev_warn(w->dapm->dev, | |
30686c35 | 3286 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3287 | w->name, ret); |
3288 | } | |
62ea874a | 3289 | break; |
d7e7eb91 | 3290 | case snd_soc_dapm_clock_supply: |
165961ef | 3291 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3292 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3293 | if (IS_ERR(w->clk)) { |
3294 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3295 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3296 | w->name, ret); |
3297 | return NULL; | |
3298 | } | |
ec02995a MB |
3299 | #else |
3300 | return NULL; | |
3301 | #endif | |
d7e7eb91 | 3302 | break; |
62ea874a MB |
3303 | default: |
3304 | break; | |
3305 | } | |
2b97eabc | 3306 | |
94f99c87 | 3307 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3308 | if (prefix) |
94f99c87 | 3309 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3310 | else |
48068961 | 3311 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3312 | if (w->name == NULL) { |
3313 | kfree(w); | |
5ba06fc9 | 3314 | return NULL; |
ead9b919 | 3315 | } |
ead9b919 | 3316 | |
7ca3a18b | 3317 | switch (w->id) { |
6dd98b0a | 3318 | case snd_soc_dapm_mic: |
a3423b02 | 3319 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3320 | w->power_check = dapm_generic_check_power; |
3321 | break; | |
86d75003 LPC |
3322 | case snd_soc_dapm_input: |
3323 | if (!dapm->card->fully_routed) | |
a3423b02 | 3324 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3325 | w->power_check = dapm_generic_check_power; |
3326 | break; | |
6dd98b0a LPC |
3327 | case snd_soc_dapm_spk: |
3328 | case snd_soc_dapm_hp: | |
a3423b02 | 3329 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3330 | w->power_check = dapm_generic_check_power; |
3331 | break; | |
86d75003 LPC |
3332 | case snd_soc_dapm_output: |
3333 | if (!dapm->card->fully_routed) | |
a3423b02 | 3334 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3335 | w->power_check = dapm_generic_check_power; |
3336 | break; | |
6dd98b0a LPC |
3337 | case snd_soc_dapm_vmid: |
3338 | case snd_soc_dapm_siggen: | |
a3423b02 | 3339 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3340 | w->power_check = dapm_always_on_check_power; |
3341 | break; | |
3342 | case snd_soc_dapm_mux: | |
d714f97c | 3343 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3344 | case snd_soc_dapm_switch: |
3345 | case snd_soc_dapm_mixer: | |
3346 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3347 | case snd_soc_dapm_adc: |
3348 | case snd_soc_dapm_aif_out: | |
3349 | case snd_soc_dapm_dac: | |
3350 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3351 | case snd_soc_dapm_pga: |
3352 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3353 | case snd_soc_dapm_micbias: |
7ca3a18b | 3354 | case snd_soc_dapm_line: |
c74184ed | 3355 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3356 | case snd_soc_dapm_dai_out: |
3357 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3358 | w->power_check = dapm_generic_check_power; |
3359 | break; | |
3360 | case snd_soc_dapm_supply: | |
62ea874a | 3361 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3362 | case snd_soc_dapm_clock_supply: |
57295073 | 3363 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3364 | w->is_supply = 1; |
7ca3a18b MB |
3365 | w->power_check = dapm_supply_check_power; |
3366 | break; | |
3367 | default: | |
3368 | w->power_check = dapm_always_on_check_power; | |
3369 | break; | |
3370 | } | |
3371 | ||
ce6120cc | 3372 | w->dapm = dapm; |
2b97eabc | 3373 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3374 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3375 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3376 | |
a3423b02 LPC |
3377 | snd_soc_dapm_for_each_direction(dir) { |
3378 | INIT_LIST_HEAD(&w->edges[dir]); | |
3379 | w->endpoints[dir] = -1; | |
3380 | } | |
92a99ea4 | 3381 | |
2b97eabc RP |
3382 | /* machine layer set ups unconnected pins and insertions */ |
3383 | w->connected = 1; | |
5ba06fc9 | 3384 | return w; |
2b97eabc | 3385 | } |
2b97eabc | 3386 | |
4ba1327a MB |
3387 | /** |
3388 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3389 | * @dapm: DAPM context |
4ba1327a MB |
3390 | * @widget: widget array |
3391 | * @num: number of widgets | |
3392 | * | |
3393 | * Creates new DAPM controls based upon the templates. | |
3394 | * | |
3395 | * Returns 0 for success else error. | |
3396 | */ | |
ce6120cc | 3397 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3398 | const struct snd_soc_dapm_widget *widget, |
3399 | int num) | |
3400 | { | |
5ba06fc9 MB |
3401 | struct snd_soc_dapm_widget *w; |
3402 | int i; | |
60884c27 | 3403 | int ret = 0; |
4ba1327a | 3404 | |
a73fb2df | 3405 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3406 | for (i = 0; i < num; i++) { |
02aa78ab | 3407 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
5ba06fc9 | 3408 | if (!w) { |
f7d41ae8 | 3409 | dev_err(dapm->dev, |
5ba06fc9 MB |
3410 | "ASoC: Failed to create DAPM control %s\n", |
3411 | widget->name); | |
60884c27 DC |
3412 | ret = -ENOMEM; |
3413 | break; | |
b8b33cb5 | 3414 | } |
4ba1327a MB |
3415 | widget++; |
3416 | } | |
a73fb2df | 3417 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3418 | return ret; |
4ba1327a MB |
3419 | } |
3420 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3421 | ||
c74184ed MB |
3422 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3423 | struct snd_kcontrol *kcontrol, int event) | |
3424 | { | |
3425 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3426 | struct snd_soc_dai *source, *sink; | |
c6615082 | 3427 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3428 | struct snd_pcm_substream substream; |
9747cec2 | 3429 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3430 | u64 fmt; |
3431 | int ret; | |
3432 | ||
bf4edea8 | 3433 | if (WARN_ON(!config) || |
a3423b02 LPC |
3434 | WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || |
3435 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
bf4edea8 | 3436 | return -EINVAL; |
c74184ed MB |
3437 | |
3438 | /* We only support a single source and sink, pick the first */ | |
a3423b02 LPC |
3439 | source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], |
3440 | struct snd_soc_dapm_path, | |
3441 | list_node[SND_SOC_DAPM_DIR_OUT]); | |
3442 | sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], | |
3443 | struct snd_soc_dapm_path, | |
3444 | list_node[SND_SOC_DAPM_DIR_IN]); | |
c74184ed MB |
3445 | |
3446 | source = source_p->source->priv; | |
3447 | sink = sink_p->sink->priv; | |
3448 | ||
3449 | /* Be a little careful as we don't want to overflow the mask array */ | |
3450 | if (config->formats) { | |
3451 | fmt = ffs(config->formats) - 1; | |
3452 | } else { | |
30a6a1a4 | 3453 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3454 | config->formats); |
3455 | fmt = 0; | |
3456 | } | |
3457 | ||
3458 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3459 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3460 | if (!params) { | |
3461 | ret = -ENOMEM; | |
3462 | goto out; | |
3463 | } | |
3464 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3465 | |
9747cec2 | 3466 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3467 | config->rate_min; |
9747cec2 | 3468 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3469 | config->rate_max; |
3470 | ||
9747cec2 | 3471 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3472 | = config->channels_min; |
9747cec2 | 3473 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3474 | = config->channels_max; |
3475 | ||
3476 | memset(&substream, 0, sizeof(substream)); | |
3477 | ||
3478 | switch (event) { | |
3479 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a | 3480 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
9b8ef9f6 JK |
3481 | if (source->driver->ops && source->driver->ops->startup) { |
3482 | ret = source->driver->ops->startup(&substream, source); | |
3483 | if (ret < 0) { | |
3484 | dev_err(source->dev, | |
3485 | "ASoC: startup() failed: %d\n", ret); | |
3486 | goto out; | |
3487 | } | |
3488 | source->active++; | |
3489 | } | |
93e6958a BC |
3490 | ret = soc_dai_hw_params(&substream, params, source); |
3491 | if (ret < 0) | |
3492 | goto out; | |
c74184ed | 3493 | |
93e6958a | 3494 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
9b8ef9f6 JK |
3495 | if (sink->driver->ops && sink->driver->ops->startup) { |
3496 | ret = sink->driver->ops->startup(&substream, sink); | |
3497 | if (ret < 0) { | |
3498 | dev_err(sink->dev, | |
3499 | "ASoC: startup() failed: %d\n", ret); | |
3500 | goto out; | |
3501 | } | |
3502 | sink->active++; | |
3503 | } | |
93e6958a BC |
3504 | ret = soc_dai_hw_params(&substream, params, sink); |
3505 | if (ret < 0) | |
3506 | goto out; | |
c74184ed MB |
3507 | break; |
3508 | ||
3509 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3510 | ret = snd_soc_dai_digital_mute(sink, 0, |
3511 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3512 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3513 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3514 | ret = 0; |
c74184ed MB |
3515 | break; |
3516 | ||
3517 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3518 | ret = snd_soc_dai_digital_mute(sink, 1, |
3519 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3520 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3521 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3522 | ret = 0; |
9b8ef9f6 JK |
3523 | |
3524 | source->active--; | |
3525 | if (source->driver->ops && source->driver->ops->shutdown) { | |
3526 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3527 | source->driver->ops->shutdown(&substream, source); | |
3528 | } | |
3529 | ||
3530 | sink->active--; | |
3531 | if (sink->driver->ops && sink->driver->ops->shutdown) { | |
3532 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3533 | sink->driver->ops->shutdown(&substream, sink); | |
3534 | } | |
c74184ed MB |
3535 | break; |
3536 | ||
3537 | default: | |
a6ed0608 | 3538 | WARN(1, "Unknown event %d\n", event); |
c74184ed MB |
3539 | return -EINVAL; |
3540 | } | |
3541 | ||
9747cec2 MB |
3542 | out: |
3543 | kfree(params); | |
3544 | return ret; | |
c74184ed MB |
3545 | } |
3546 | ||
c6615082 NO |
3547 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3548 | struct snd_ctl_elem_value *ucontrol) | |
3549 | { | |
3550 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3551 | ||
3552 | ucontrol->value.integer.value[0] = w->params_select; | |
3553 | ||
3554 | return 0; | |
3555 | } | |
3556 | ||
3557 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3558 | struct snd_ctl_elem_value *ucontrol) | |
3559 | { | |
3560 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3561 | ||
3562 | /* Can't change the config when widget is already powered */ | |
3563 | if (w->power) | |
3564 | return -EBUSY; | |
3565 | ||
3566 | if (ucontrol->value.integer.value[0] == w->params_select) | |
3567 | return 0; | |
3568 | ||
3569 | if (ucontrol->value.integer.value[0] >= w->num_params) | |
3570 | return -EINVAL; | |
3571 | ||
3572 | w->params_select = ucontrol->value.integer.value[0]; | |
3573 | ||
3574 | return 0; | |
3575 | } | |
3576 | ||
c74184ed MB |
3577 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, |
3578 | const struct snd_soc_pcm_stream *params, | |
c6615082 | 3579 | unsigned int num_params, |
c74184ed MB |
3580 | struct snd_soc_dapm_widget *source, |
3581 | struct snd_soc_dapm_widget *sink) | |
3582 | { | |
c74184ed MB |
3583 | struct snd_soc_dapm_widget template; |
3584 | struct snd_soc_dapm_widget *w; | |
c74184ed | 3585 | char *link_name; |
c6615082 NO |
3586 | int ret, count; |
3587 | unsigned long private_value; | |
3588 | const char **w_param_text; | |
3589 | struct soc_enum w_param_enum[] = { | |
3590 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3591 | }; | |
3592 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3593 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3594 | snd_soc_dapm_dai_link_get, | |
3595 | snd_soc_dapm_dai_link_put), | |
3596 | }; | |
3597 | const struct snd_soc_pcm_stream *config = params; | |
3598 | ||
3599 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3600 | sizeof(char *), GFP_KERNEL); | |
3601 | if (!w_param_text) | |
c74184ed | 3602 | return -ENOMEM; |
c74184ed | 3603 | |
46172b6c CK |
3604 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", |
3605 | source->name, sink->name); | |
c6615082 NO |
3606 | if (!link_name) { |
3607 | ret = -ENOMEM; | |
3608 | goto outfree_w_param; | |
3609 | } | |
c74184ed | 3610 | |
c6615082 NO |
3611 | for (count = 0 ; count < num_params; count++) { |
3612 | if (!config->stream_name) { | |
3613 | dev_warn(card->dapm.dev, | |
3614 | "ASoC: anonymous config %d for dai link %s\n", | |
3615 | count, link_name); | |
c6615082 | 3616 | w_param_text[count] = |
46172b6c CK |
3617 | devm_kasprintf(card->dev, GFP_KERNEL, |
3618 | "Anonymous Configuration %d", | |
3619 | count); | |
c6615082 NO |
3620 | if (!w_param_text[count]) { |
3621 | ret = -ENOMEM; | |
3622 | goto outfree_link_name; | |
3623 | } | |
c6615082 NO |
3624 | } else { |
3625 | w_param_text[count] = devm_kmemdup(card->dev, | |
3626 | config->stream_name, | |
3627 | strlen(config->stream_name) + 1, | |
3628 | GFP_KERNEL); | |
3629 | if (!w_param_text[count]) { | |
3630 | ret = -ENOMEM; | |
3631 | goto outfree_link_name; | |
3632 | } | |
3633 | } | |
3634 | config++; | |
3635 | } | |
3636 | w_param_enum[0].items = num_params; | |
3637 | w_param_enum[0].texts = w_param_text; | |
c74184ed MB |
3638 | |
3639 | memset(&template, 0, sizeof(template)); | |
3640 | template.reg = SND_SOC_NOPM; | |
3641 | template.id = snd_soc_dapm_dai_link; | |
3642 | template.name = link_name; | |
3643 | template.event = snd_soc_dai_link_event; | |
3644 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3645 | SND_SOC_DAPM_PRE_PMD; | |
c6615082 NO |
3646 | template.num_kcontrols = 1; |
3647 | /* duplicate w_param_enum on heap so that memory persists */ | |
3648 | private_value = | |
3649 | (unsigned long) devm_kmemdup(card->dev, | |
3650 | (void *)(kcontrol_dai_link[0].private_value), | |
3651 | sizeof(struct soc_enum), GFP_KERNEL); | |
3652 | if (!private_value) { | |
3653 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3654 | link_name); | |
3655 | ret = -ENOMEM; | |
3656 | goto outfree_link_name; | |
3657 | } | |
3658 | kcontrol_dai_link[0].private_value = private_value; | |
3659 | /* duplicate kcontrol_dai_link on heap so that memory persists */ | |
3660 | template.kcontrol_news = | |
3661 | devm_kmemdup(card->dev, &kcontrol_dai_link[0], | |
3662 | sizeof(struct snd_kcontrol_new), | |
3663 | GFP_KERNEL); | |
3664 | if (!template.kcontrol_news) { | |
3665 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", | |
3666 | link_name); | |
3667 | ret = -ENOMEM; | |
3668 | goto outfree_private_value; | |
3669 | } | |
c74184ed | 3670 | |
30a6a1a4 | 3671 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3672 | |
02aa78ab | 3673 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
c74184ed | 3674 | if (!w) { |
30a6a1a4 | 3675 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3676 | link_name); |
c6615082 NO |
3677 | ret = -ENOMEM; |
3678 | goto outfree_kcontrol_news; | |
c74184ed MB |
3679 | } |
3680 | ||
3681 | w->params = params; | |
c6615082 | 3682 | w->num_params = num_params; |
c74184ed | 3683 | |
fe83897f LPC |
3684 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3685 | if (ret) | |
c6615082 | 3686 | goto outfree_w; |
fe83897f | 3687 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3688 | |
3689 | outfree_w: | |
3690 | devm_kfree(card->dev, w); | |
3691 | outfree_kcontrol_news: | |
3692 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
3693 | outfree_private_value: | |
3694 | devm_kfree(card->dev, (void *)private_value); | |
3695 | outfree_link_name: | |
3696 | devm_kfree(card->dev, link_name); | |
3697 | outfree_w_param: | |
3698 | for (count = 0 ; count < num_params; count++) | |
3699 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3700 | devm_kfree(card->dev, w_param_text); | |
3701 | ||
3702 | return ret; | |
c74184ed MB |
3703 | } |
3704 | ||
888df395 MB |
3705 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3706 | struct snd_soc_dai *dai) | |
2b97eabc | 3707 | { |
888df395 | 3708 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3709 | struct snd_soc_dapm_widget *w; |
3710 | ||
888df395 MB |
3711 | WARN_ON(dapm->dev != dai->dev); |
3712 | ||
3713 | memset(&template, 0, sizeof(template)); | |
3714 | template.reg = SND_SOC_NOPM; | |
3715 | ||
3716 | if (dai->driver->playback.stream_name) { | |
4616274d | 3717 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3718 | template.name = dai->driver->playback.stream_name; |
3719 | template.sname = dai->driver->playback.stream_name; | |
3720 | ||
30a6a1a4 | 3721 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3722 | template.name); |
3723 | ||
02aa78ab | 3724 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3725 | if (!w) { |
30a6a1a4 | 3726 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3727 | dai->driver->playback.stream_name); |
298402a3 | 3728 | return -ENOMEM; |
888df395 MB |
3729 | } |
3730 | ||
3731 | w->priv = dai; | |
3732 | dai->playback_widget = w; | |
3733 | } | |
3734 | ||
3735 | if (dai->driver->capture.stream_name) { | |
4616274d | 3736 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3737 | template.name = dai->driver->capture.stream_name; |
3738 | template.sname = dai->driver->capture.stream_name; | |
3739 | ||
30a6a1a4 | 3740 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3741 | template.name); |
3742 | ||
02aa78ab | 3743 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
888df395 | 3744 | if (!w) { |
30a6a1a4 | 3745 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 3746 | dai->driver->capture.stream_name); |
298402a3 | 3747 | return -ENOMEM; |
888df395 MB |
3748 | } |
3749 | ||
3750 | w->priv = dai; | |
3751 | dai->capture_widget = w; | |
3752 | } | |
3753 | ||
3754 | return 0; | |
3755 | } | |
3756 | ||
3757 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3758 | { | |
3759 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 3760 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 3761 | struct snd_soc_dai *dai; |
888df395 MB |
3762 | |
3763 | /* For each DAI widget... */ | |
3764 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3765 | switch (dai_w->id) { |
3766 | case snd_soc_dapm_dai_in: | |
3767 | case snd_soc_dapm_dai_out: | |
3768 | break; | |
3769 | default: | |
2b97eabc | 3770 | continue; |
4616274d | 3771 | } |
888df395 MB |
3772 | |
3773 | dai = dai_w->priv; | |
3774 | ||
3775 | /* ...find all widgets with the same stream and link them */ | |
3776 | list_for_each_entry(w, &card->widgets, list) { | |
3777 | if (w->dapm != dai_w->dapm) | |
3778 | continue; | |
3779 | ||
4616274d MB |
3780 | switch (w->id) { |
3781 | case snd_soc_dapm_dai_in: | |
3782 | case snd_soc_dapm_dai_out: | |
888df395 | 3783 | continue; |
4616274d MB |
3784 | default: |
3785 | break; | |
3786 | } | |
888df395 | 3787 | |
a798c24a | 3788 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
3789 | continue; |
3790 | ||
0f9bd7b1 LPC |
3791 | if (dai_w->id == snd_soc_dapm_dai_in) { |
3792 | src = dai_w; | |
3793 | sink = w; | |
3794 | } else { | |
3795 | src = w; | |
3796 | sink = dai_w; | |
2b97eabc | 3797 | } |
0f9bd7b1 LPC |
3798 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
3799 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
3800 | } |
3801 | } | |
2b97eabc | 3802 | |
888df395 MB |
3803 | return 0; |
3804 | } | |
64a648c2 | 3805 | |
44ba2641 BC |
3806 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
3807 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 3808 | { |
44ba2641 | 3809 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 3810 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
3811 | int i; |
3812 | ||
44ba2641 BC |
3813 | for (i = 0; i < rtd->num_codecs; i++) { |
3814 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f | 3815 | |
b893ea5f LG |
3816 | /* connect BE DAI playback if widgets are valid */ |
3817 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
3818 | source = cpu_dai->playback_widget; |
3819 | sink = codec_dai->playback_widget; | |
b893ea5f | 3820 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3821 | cpu_dai->component->name, source->name, |
3822 | codec_dai->component->name, sink->name); | |
b893ea5f | 3823 | |
9887c20b LPC |
3824 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3825 | NULL, NULL); | |
b893ea5f LG |
3826 | } |
3827 | ||
3828 | /* connect BE DAI capture if widgets are valid */ | |
3829 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
3830 | source = codec_dai->capture_widget; |
3831 | sink = cpu_dai->capture_widget; | |
b893ea5f | 3832 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
3833 | codec_dai->component->name, source->name, |
3834 | cpu_dai->component->name, sink->name); | |
b893ea5f | 3835 | |
9887c20b LPC |
3836 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
3837 | NULL, NULL); | |
b893ea5f | 3838 | } |
b893ea5f LG |
3839 | } |
3840 | } | |
3841 | ||
c471fdd1 | 3842 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 3843 | int event) |
2b97eabc | 3844 | { |
c471fdd1 | 3845 | struct snd_soc_dapm_widget *w; |
a3423b02 | 3846 | unsigned int ep; |
7bd3a6f3 | 3847 | |
c471fdd1 LPC |
3848 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
3849 | w = dai->playback_widget; | |
3850 | else | |
3851 | w = dai->capture_widget; | |
fe360685 | 3852 | |
c471fdd1 LPC |
3853 | if (w) { |
3854 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 3855 | |
a3423b02 LPC |
3856 | if (w->id == snd_soc_dapm_dai_in) { |
3857 | ep = SND_SOC_DAPM_EP_SOURCE; | |
3858 | dapm_widget_invalidate_input_paths(w); | |
3859 | } else { | |
3860 | ep = SND_SOC_DAPM_EP_SINK; | |
3861 | dapm_widget_invalidate_output_paths(w); | |
3862 | } | |
3863 | ||
d9b0951b LG |
3864 | switch (event) { |
3865 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 3866 | w->active = 1; |
a3423b02 | 3867 | w->is_ep = ep; |
d9b0951b LG |
3868 | break; |
3869 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 3870 | w->active = 0; |
a3423b02 | 3871 | w->is_ep = 0; |
d9b0951b LG |
3872 | break; |
3873 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3874 | case SND_SOC_DAPM_STREAM_RESUME: | |
3875 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3876 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3877 | break; | |
3878 | } | |
3879 | } | |
c471fdd1 | 3880 | } |
d9b0951b | 3881 | |
44ba2641 BC |
3882 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
3883 | { | |
3884 | struct snd_soc_pcm_runtime *rtd = card->rtd; | |
3885 | int i; | |
3886 | ||
3887 | /* for each BE DAI link... */ | |
3888 | for (i = 0; i < card->num_rtd; i++) { | |
3889 | rtd = &card->rtd[i]; | |
3890 | ||
3891 | /* | |
3892 | * dynamic FE links have no fixed DAI mapping. | |
3893 | * CODEC<->CODEC links have no direct connection. | |
3894 | */ | |
3895 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
3896 | continue; | |
3897 | ||
3898 | dapm_connect_dai_link_widgets(card, rtd); | |
3899 | } | |
3900 | } | |
3901 | ||
c471fdd1 LPC |
3902 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3903 | int event) | |
3904 | { | |
44ba2641 BC |
3905 | int i; |
3906 | ||
c471fdd1 | 3907 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
3908 | for (i = 0; i < rtd->num_codecs; i++) |
3909 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 3910 | |
95dd5cd6 | 3911 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
3912 | } |
3913 | ||
3914 | /** | |
3915 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3916 | * @rtd: PCM runtime data | |
3917 | * @stream: stream name | |
3918 | * @event: stream event | |
3919 | * | |
3920 | * Sends a stream event to the dapm core. The core then makes any | |
3921 | * necessary widget power changes. | |
3922 | * | |
3923 | * Returns 0 for success else error. | |
3924 | */ | |
d9b0951b LG |
3925 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3926 | int event) | |
ce6120cc | 3927 | { |
a73fb2df | 3928 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3929 | |
3cd04343 | 3930 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3931 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3932 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3933 | } |
2b97eabc | 3934 | |
11391100 CK |
3935 | /** |
3936 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
3937 | * @dapm: DAPM context | |
3938 | * @pin: pin name | |
3939 | * | |
3940 | * Enables input/output pin and its parents or children widgets iff there is | |
3941 | * a valid audio route and active audio stream. | |
3942 | * | |
3943 | * Requires external locking. | |
3944 | * | |
3945 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3946 | * do any widget power switching. | |
3947 | */ | |
3948 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
3949 | const char *pin) | |
3950 | { | |
3951 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
3952 | } | |
3953 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
3954 | ||
2b97eabc | 3955 | /** |
a5302181 | 3956 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3957 | * @dapm: DAPM context |
a5302181 | 3958 | * @pin: pin name |
2b97eabc | 3959 | * |
74b8f955 | 3960 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 3961 | * a valid audio route and active audio stream. |
11391100 | 3962 | * |
a5302181 LG |
3963 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3964 | * do any widget power switching. | |
2b97eabc | 3965 | */ |
ce6120cc | 3966 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3967 | { |
11391100 CK |
3968 | int ret; |
3969 | ||
3970 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3971 | ||
3972 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
3973 | ||
3974 | mutex_unlock(&dapm->card->dapm_mutex); | |
3975 | ||
3976 | return ret; | |
a5302181 LG |
3977 | } |
3978 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3979 | |
da34183e | 3980 | /** |
11391100 | 3981 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 3982 | * @dapm: DAPM context |
da34183e MB |
3983 | * @pin: pin name |
3984 | * | |
3985 | * Enables input/output pin regardless of any other state. This is | |
3986 | * intended for use with microphone bias supplies used in microphone | |
3987 | * jack detection. | |
3988 | * | |
11391100 CK |
3989 | * Requires external locking. |
3990 | * | |
da34183e MB |
3991 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3992 | * do any widget power switching. | |
3993 | */ | |
11391100 CK |
3994 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
3995 | const char *pin) | |
da34183e | 3996 | { |
91a5fca4 | 3997 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3998 | |
91a5fca4 | 3999 | if (!w) { |
30a6a1a4 | 4000 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4001 | return -EINVAL; |
0d86733c MB |
4002 | } |
4003 | ||
30a6a1a4 | 4004 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4005 | if (!w->connected) { |
4006 | /* | |
4007 | * w->force does not affect the number of input or output paths, | |
4008 | * so we only have to recheck if w->connected is changed | |
4009 | */ | |
4010 | dapm_widget_invalidate_input_paths(w); | |
4011 | dapm_widget_invalidate_output_paths(w); | |
4012 | w->connected = 1; | |
4013 | } | |
91a5fca4 | 4014 | w->force = 1; |
75c1f891 | 4015 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4016 | |
91a5fca4 | 4017 | return 0; |
da34183e | 4018 | } |
11391100 CK |
4019 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4020 | ||
4021 | /** | |
4022 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4023 | * @dapm: DAPM context | |
4024 | * @pin: pin name | |
4025 | * | |
4026 | * Enables input/output pin regardless of any other state. This is | |
4027 | * intended for use with microphone bias supplies used in microphone | |
4028 | * jack detection. | |
4029 | * | |
4030 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4031 | * do any widget power switching. | |
4032 | */ | |
4033 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4034 | const char *pin) | |
4035 | { | |
4036 | int ret; | |
4037 | ||
4038 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4039 | ||
4040 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4041 | ||
4042 | mutex_unlock(&dapm->card->dapm_mutex); | |
4043 | ||
4044 | return ret; | |
4045 | } | |
da34183e MB |
4046 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4047 | ||
11391100 CK |
4048 | /** |
4049 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4050 | * @dapm: DAPM context | |
4051 | * @pin: pin name | |
4052 | * | |
4053 | * Disables input/output pin and its parents or children widgets. | |
4054 | * | |
4055 | * Requires external locking. | |
4056 | * | |
4057 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4058 | * do any widget power switching. | |
4059 | */ | |
4060 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4061 | const char *pin) | |
4062 | { | |
4063 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4064 | } | |
4065 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4066 | ||
a5302181 LG |
4067 | /** |
4068 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4069 | * @dapm: DAPM context |
a5302181 LG |
4070 | * @pin: pin name |
4071 | * | |
74b8f955 | 4072 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4073 | * |
a5302181 LG |
4074 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4075 | * do any widget power switching. | |
4076 | */ | |
ce6120cc LG |
4077 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4078 | const char *pin) | |
a5302181 | 4079 | { |
11391100 CK |
4080 | int ret; |
4081 | ||
4082 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4083 | ||
4084 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4085 | ||
4086 | mutex_unlock(&dapm->card->dapm_mutex); | |
4087 | ||
4088 | return ret; | |
2b97eabc | 4089 | } |
a5302181 | 4090 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4091 | |
11391100 CK |
4092 | /** |
4093 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4094 | * @dapm: DAPM context | |
4095 | * @pin: pin name | |
4096 | * | |
4097 | * Marks the specified pin as being not connected, disabling it along | |
4098 | * any parent or child widgets. At present this is identical to | |
4099 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4100 | * additional things such as disabling controls which only affect | |
4101 | * paths through the pin. | |
4102 | * | |
4103 | * Requires external locking. | |
4104 | * | |
4105 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4106 | * do any widget power switching. | |
4107 | */ | |
4108 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4109 | const char *pin) | |
4110 | { | |
4111 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4112 | } | |
4113 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4114 | ||
5817b52a MB |
4115 | /** |
4116 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4117 | * @dapm: DAPM context |
5817b52a MB |
4118 | * @pin: pin name |
4119 | * | |
4120 | * Marks the specified pin as being not connected, disabling it along | |
4121 | * any parent or child widgets. At present this is identical to | |
4122 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4123 | * additional things such as disabling controls which only affect | |
4124 | * paths through the pin. | |
4125 | * | |
4126 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4127 | * do any widget power switching. | |
4128 | */ | |
ce6120cc | 4129 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4130 | { |
11391100 CK |
4131 | int ret; |
4132 | ||
4133 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4134 | ||
4135 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4136 | ||
4137 | mutex_unlock(&dapm->card->dapm_mutex); | |
4138 | ||
4139 | return ret; | |
5817b52a MB |
4140 | } |
4141 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4142 | ||
eeec12bf | 4143 | /** |
a5302181 | 4144 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4145 | * @dapm: DAPM context |
a5302181 | 4146 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4147 | * |
a5302181 | 4148 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4149 | * |
a5302181 | 4150 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4151 | */ |
ce6120cc LG |
4152 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4153 | const char *pin) | |
eeec12bf | 4154 | { |
91a5fca4 | 4155 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4156 | |
91a5fca4 LPC |
4157 | if (w) |
4158 | return w->connected; | |
a68b38ad | 4159 | |
eeec12bf GG |
4160 | return 0; |
4161 | } | |
a5302181 | 4162 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4163 | |
1547aba9 MB |
4164 | /** |
4165 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4166 | * @dapm: DAPM context |
1547aba9 MB |
4167 | * @pin: audio signal pin endpoint (or start point) |
4168 | * | |
4169 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4170 | * system is disabled a path between two endpoints flagged as ignoring | |
4171 | * suspend will not be disabled. The path must already be enabled via | |
4172 | * normal means at suspend time, it will not be turned on if it was not | |
4173 | * already enabled. | |
4174 | */ | |
ce6120cc LG |
4175 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4176 | const char *pin) | |
1547aba9 | 4177 | { |
91a5fca4 | 4178 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4179 | |
91a5fca4 | 4180 | if (!w) { |
30a6a1a4 | 4181 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4182 | return -EINVAL; |
1547aba9 MB |
4183 | } |
4184 | ||
91a5fca4 LPC |
4185 | w->ignore_suspend = 1; |
4186 | ||
4187 | return 0; | |
1547aba9 MB |
4188 | } |
4189 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4190 | ||
2b97eabc RP |
4191 | /** |
4192 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4193 | * @dapm: DAPM context |
2b97eabc RP |
4194 | * |
4195 | * Free all dapm widgets and resources. | |
4196 | */ | |
ce6120cc | 4197 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4198 | { |
6c45e126 | 4199 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4200 | dapm_free_widgets(dapm); |
7be31be8 | 4201 | list_del(&dapm->list); |
2b97eabc RP |
4202 | } |
4203 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4204 | ||
57996358 | 4205 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4206 | { |
01005a72 | 4207 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4208 | struct snd_soc_dapm_widget *w; |
4209 | LIST_HEAD(down_list); | |
4210 | int powerdown = 0; | |
4211 | ||
01005a72 LG |
4212 | mutex_lock(&card->dapm_mutex); |
4213 | ||
97c866de JN |
4214 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4215 | if (w->dapm != dapm) | |
4216 | continue; | |
51737470 | 4217 | if (w->power) { |
828a842f | 4218 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4219 | w->power = 0; |
51737470 MB |
4220 | powerdown = 1; |
4221 | } | |
4222 | } | |
4223 | ||
4224 | /* If there were no widgets to power down we're already in | |
4225 | * standby. | |
4226 | */ | |
4227 | if (powerdown) { | |
7679e42e MB |
4228 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4229 | snd_soc_dapm_set_bias_level(dapm, | |
4230 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4231 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4232 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4233 | snd_soc_dapm_set_bias_level(dapm, | |
4234 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4235 | } |
01005a72 LG |
4236 | |
4237 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4238 | } |
4239 | ||
4240 | /* | |
4241 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4242 | */ | |
4243 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4244 | { | |
57996358 | 4245 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4246 | |
57996358 | 4247 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4248 | if (dapm != &card->dapm) { |
4249 | soc_dapm_shutdown_dapm(dapm); | |
4250 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4251 | snd_soc_dapm_set_bias_level(dapm, | |
4252 | SND_SOC_BIAS_OFF); | |
4253 | } | |
ce6120cc | 4254 | } |
17282ba4 XX |
4255 | |
4256 | soc_dapm_shutdown_dapm(&card->dapm); | |
4257 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4258 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4259 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4260 | } |
4261 | ||
2b97eabc | 4262 | /* Module information */ |
d331124d | 4263 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4264 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4265 | MODULE_LICENSE("GPL"); |