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c01f3af4 KM |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
4 | // | |
5 | // Copyright 2005 Wolfson Microelectronics PLC. | |
6 | // Author: Liam Girdwood <lrg@slimlogic.co.uk> | |
7 | // | |
8 | // Features: | |
9 | // o Changes power status of internal codec blocks depending on the | |
10 | // dynamic configuration of codec internal audio paths and active | |
11 | // DACs/ADCs. | |
12 | // o Platform power domain - can support external components i.e. amps and | |
13 | // mic/headphone insertion events. | |
14 | // o Automatic Mic Bias support | |
15 | // o Jack insertion power event initiation - e.g. hp insertion will enable | |
16 | // sinks, dacs, etc | |
17 | // o Delayed power down of audio subsystem to reduce pops between a quick | |
18 | // device reopen. | |
2b97eabc RP |
19 | |
20 | #include <linux/module.h> | |
21 | #include <linux/moduleparam.h> | |
22 | #include <linux/init.h> | |
9d0624a7 | 23 | #include <linux/async.h> |
2b97eabc RP |
24 | #include <linux/delay.h> |
25 | #include <linux/pm.h> | |
26 | #include <linux/bitops.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <linux/jiffies.h> | |
20496ff3 | 29 | #include <linux/debugfs.h> |
f1aac484 | 30 | #include <linux/pm_runtime.h> |
62ea874a | 31 | #include <linux/regulator/consumer.h> |
5b2d15bb | 32 | #include <linux/pinctrl/consumer.h> |
d7e7eb91 | 33 | #include <linux/clk.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2b97eabc RP |
35 | #include <sound/core.h> |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
ce6120cc | 38 | #include <sound/soc.h> |
2b97eabc RP |
39 | #include <sound/initval.h> |
40 | ||
84e90930 MB |
41 | #include <trace/events/asoc.h> |
42 | ||
de02d078 MB |
43 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
44 | ||
a3423b02 LPC |
45 | #define SND_SOC_DAPM_DIR_REVERSE(x) ((x == SND_SOC_DAPM_DIR_IN) ? \ |
46 | SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN) | |
47 | ||
48 | #define snd_soc_dapm_for_each_direction(dir) \ | |
49 | for ((dir) = SND_SOC_DAPM_DIR_IN; (dir) <= SND_SOC_DAPM_DIR_OUT; \ | |
50 | (dir)++) | |
51 | ||
57295073 LPC |
52 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
53 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
54 | const char *control, | |
55 | int (*connected)(struct snd_soc_dapm_widget *source, | |
56 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 57 | |
cc76e7de | 58 | struct snd_soc_dapm_widget * |
57295073 LPC |
59 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
60 | const struct snd_soc_dapm_widget *widget); | |
61 | ||
02aa78ab LG |
62 | struct snd_soc_dapm_widget * |
63 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
64 | const struct snd_soc_dapm_widget *widget); |
65 | ||
2b97eabc RP |
66 | /* dapm power sequences - make this per codec in the future */ |
67 | static int dapm_up_seq[] = { | |
38357ab2 | 68 | [snd_soc_dapm_pre] = 0, |
62ea874a | 69 | [snd_soc_dapm_regulator_supply] = 1, |
5b2d15bb | 70 | [snd_soc_dapm_pinctrl] = 1, |
d7e7eb91 | 71 | [snd_soc_dapm_clock_supply] = 1, |
1dd275b6 MB |
72 | [snd_soc_dapm_supply] = 2, |
73 | [snd_soc_dapm_micbias] = 3, | |
c74184ed | 74 | [snd_soc_dapm_dai_link] = 2, |
1dd275b6 MB |
75 | [snd_soc_dapm_dai_in] = 4, |
76 | [snd_soc_dapm_dai_out] = 4, | |
77 | [snd_soc_dapm_aif_in] = 4, | |
78 | [snd_soc_dapm_aif_out] = 4, | |
79 | [snd_soc_dapm_mic] = 5, | |
80 | [snd_soc_dapm_mux] = 6, | |
d714f97c | 81 | [snd_soc_dapm_demux] = 6, |
1dd275b6 MB |
82 | [snd_soc_dapm_dac] = 7, |
83 | [snd_soc_dapm_switch] = 8, | |
84 | [snd_soc_dapm_mixer] = 8, | |
85 | [snd_soc_dapm_mixer_named_ctl] = 8, | |
86 | [snd_soc_dapm_pga] = 9, | |
87 | [snd_soc_dapm_adc] = 10, | |
88 | [snd_soc_dapm_out_drv] = 11, | |
89 | [snd_soc_dapm_hp] = 11, | |
90 | [snd_soc_dapm_spk] = 11, | |
91 | [snd_soc_dapm_line] = 11, | |
92 | [snd_soc_dapm_kcontrol] = 12, | |
93 | [snd_soc_dapm_post] = 13, | |
2b97eabc | 94 | }; |
ca9c1aae | 95 | |
2b97eabc | 96 | static int dapm_down_seq[] = { |
38357ab2 | 97 | [snd_soc_dapm_pre] = 0, |
57295073 LPC |
98 | [snd_soc_dapm_kcontrol] = 1, |
99 | [snd_soc_dapm_adc] = 2, | |
100 | [snd_soc_dapm_hp] = 3, | |
101 | [snd_soc_dapm_spk] = 3, | |
102 | [snd_soc_dapm_line] = 3, | |
103 | [snd_soc_dapm_out_drv] = 3, | |
38357ab2 | 104 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 105 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 106 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
107 | [snd_soc_dapm_mixer] = 5, |
108 | [snd_soc_dapm_dac] = 6, | |
109 | [snd_soc_dapm_mic] = 7, | |
110 | [snd_soc_dapm_micbias] = 8, | |
111 | [snd_soc_dapm_mux] = 9, | |
d714f97c | 112 | [snd_soc_dapm_demux] = 9, |
010ff262 MB |
113 | [snd_soc_dapm_aif_in] = 10, |
114 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
115 | [snd_soc_dapm_dai_in] = 10, |
116 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 117 | [snd_soc_dapm_dai_link] = 11, |
c74184ed | 118 | [snd_soc_dapm_supply] = 12, |
1dd275b6 | 119 | [snd_soc_dapm_clock_supply] = 13, |
5b2d15bb | 120 | [snd_soc_dapm_pinctrl] = 13, |
1dd275b6 MB |
121 | [snd_soc_dapm_regulator_supply] = 13, |
122 | [snd_soc_dapm_post] = 14, | |
2b97eabc RP |
123 | }; |
124 | ||
f9fa2b18 MB |
125 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
126 | { | |
127 | if (dapm->card && dapm->card->instantiated) | |
128 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
129 | } | |
130 | ||
12ef193d | 131 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
132 | { |
133 | if (pop_time) | |
134 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
135 | } | |
136 | ||
fd8d3bc0 | 137 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
138 | { |
139 | va_list args; | |
fd8d3bc0 | 140 | char *buf; |
15e4c72f | 141 | |
fd8d3bc0 JN |
142 | if (!pop_time) |
143 | return; | |
15e4c72f | 144 | |
fd8d3bc0 JN |
145 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
146 | if (buf == NULL) | |
147 | return; | |
15e4c72f | 148 | |
fd8d3bc0 JN |
149 | va_start(args, fmt); |
150 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 151 | dev_info(dev, "%s", buf); |
15e4c72f | 152 | va_end(args); |
fd8d3bc0 JN |
153 | |
154 | kfree(buf); | |
15e4c72f MB |
155 | } |
156 | ||
db432b41 MB |
157 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
158 | { | |
159 | return !list_empty(&w->dirty); | |
160 | } | |
161 | ||
492c0a18 | 162 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 163 | { |
f9fa2b18 MB |
164 | dapm_assert_locked(w->dapm); |
165 | ||
75c1f891 MB |
166 | if (!dapm_dirty_widget(w)) { |
167 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
168 | w->name, reason); | |
db432b41 | 169 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 170 | } |
db432b41 MB |
171 | } |
172 | ||
92a99ea4 | 173 | /* |
a3423b02 LPC |
174 | * Common implementation for dapm_widget_invalidate_input_paths() and |
175 | * dapm_widget_invalidate_output_paths(). The function is inlined since the | |
176 | * combined size of the two specialized functions is only marginally larger then | |
177 | * the size of the generic function and at the same time the fast path of the | |
178 | * specialized functions is significantly smaller than the generic function. | |
92a99ea4 | 179 | */ |
a3423b02 LPC |
180 | static __always_inline void dapm_widget_invalidate_paths( |
181 | struct snd_soc_dapm_widget *w, enum snd_soc_dapm_direction dir) | |
92a99ea4 | 182 | { |
a3423b02 LPC |
183 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
184 | struct snd_soc_dapm_widget *node; | |
92a99ea4 LPC |
185 | struct snd_soc_dapm_path *p; |
186 | LIST_HEAD(list); | |
187 | ||
188 | dapm_assert_locked(w->dapm); | |
189 | ||
a3423b02 | 190 | if (w->endpoints[dir] == -1) |
92a99ea4 LPC |
191 | return; |
192 | ||
92a99ea4 | 193 | list_add_tail(&w->work_list, &list); |
a3423b02 | 194 | w->endpoints[dir] = -1; |
92a99ea4 LPC |
195 | |
196 | list_for_each_entry(w, &list, work_list) { | |
a3423b02 | 197 | snd_soc_dapm_widget_for_each_path(w, dir, p) { |
92a99ea4 LPC |
198 | if (p->is_supply || p->weak || !p->connect) |
199 | continue; | |
a3423b02 LPC |
200 | node = p->node[rdir]; |
201 | if (node->endpoints[dir] != -1) { | |
202 | node->endpoints[dir] = -1; | |
203 | list_add_tail(&node->work_list, &list); | |
92a99ea4 LPC |
204 | } |
205 | } | |
206 | } | |
207 | } | |
208 | ||
a3423b02 LPC |
209 | /* |
210 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of | |
211 | * input paths | |
212 | * @w: The widget for which to invalidate the cached number of input paths | |
213 | * | |
214 | * Resets the cached number of inputs for the specified widget and all widgets | |
215 | * that can be reached via outcoming paths from the widget. | |
216 | * | |
217 | * This function must be called if the number of output paths for a widget might | |
218 | * have changed. E.g. if the source state of a widget changes or a path is added | |
219 | * or activated with the widget as the sink. | |
220 | */ | |
221 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
222 | { | |
223 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_IN); | |
224 | } | |
225 | ||
92a99ea4 LPC |
226 | /* |
227 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
228 | * output paths | |
229 | * @w: The widget for which to invalidate the cached number of output paths | |
230 | * | |
231 | * Resets the cached number of outputs for the specified widget and all widgets | |
232 | * that can be reached via incoming paths from the widget. | |
233 | * | |
234 | * This function must be called if the number of output paths for a widget might | |
235 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
236 | * or activated with the widget as the source. | |
237 | */ | |
238 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
239 | { | |
a3423b02 | 240 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_OUT); |
92a99ea4 LPC |
241 | } |
242 | ||
243 | /* | |
244 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
245 | * for the widgets connected to a path | |
246 | * @p: The path to invalidate | |
247 | * | |
248 | * Resets the cached number of inputs for the sink of the path and the cached | |
249 | * number of outputs for the source of the path. | |
250 | * | |
251 | * This function must be called when a path is added, removed or the connected | |
252 | * state changes. | |
253 | */ | |
254 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
255 | { | |
256 | /* | |
257 | * Weak paths or supply paths do not influence the number of input or | |
258 | * output paths of their neighbors. | |
259 | */ | |
260 | if (p->weak || p->is_supply) | |
261 | return; | |
262 | ||
263 | /* | |
264 | * The number of connected endpoints is the sum of the number of | |
265 | * connected endpoints of all neighbors. If a node with 0 connected | |
266 | * endpoints is either connected or disconnected that sum won't change, | |
267 | * so there is no need to re-check the path. | |
268 | */ | |
a3423b02 | 269 | if (p->source->endpoints[SND_SOC_DAPM_DIR_IN] != 0) |
92a99ea4 | 270 | dapm_widget_invalidate_input_paths(p->sink); |
a3423b02 | 271 | if (p->sink->endpoints[SND_SOC_DAPM_DIR_OUT] != 0) |
92a99ea4 LPC |
272 | dapm_widget_invalidate_output_paths(p->source); |
273 | } | |
274 | ||
8be4da29 | 275 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 276 | { |
e2d32ff6 MB |
277 | struct snd_soc_dapm_widget *w; |
278 | ||
279 | mutex_lock(&card->dapm_mutex); | |
280 | ||
281 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 | 282 | if (w->is_ep) { |
8be4da29 | 283 | dapm_mark_dirty(w, "Rechecking endpoints"); |
a3423b02 | 284 | if (w->is_ep & SND_SOC_DAPM_EP_SINK) |
92a99ea4 | 285 | dapm_widget_invalidate_output_paths(w); |
a3423b02 | 286 | if (w->is_ep & SND_SOC_DAPM_EP_SOURCE) |
92a99ea4 LPC |
287 | dapm_widget_invalidate_input_paths(w); |
288 | } | |
e2d32ff6 MB |
289 | } |
290 | ||
291 | mutex_unlock(&card->dapm_mutex); | |
292 | } | |
8be4da29 | 293 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 294 | |
2b97eabc | 295 | /* create a new dapm widget */ |
88cb4290 | 296 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
297 | const struct snd_soc_dapm_widget *_widget) |
298 | { | |
88cb4290 | 299 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
300 | } |
301 | ||
e84357f7 | 302 | struct dapm_kcontrol_data { |
cf7c1de2 | 303 | unsigned int value; |
57295073 | 304 | struct snd_soc_dapm_widget *widget; |
5106b92f | 305 | struct list_head paths; |
2c75bdf3 | 306 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
307 | }; |
308 | ||
309 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
41d80025 | 310 | struct snd_kcontrol *kcontrol, const char *ctrl_name) |
e84357f7 LPC |
311 | { |
312 | struct dapm_kcontrol_data *data; | |
57295073 | 313 | struct soc_mixer_control *mc; |
561ed680 | 314 | struct soc_enum *e; |
773da9b3 CK |
315 | const char *name; |
316 | int ret; | |
e84357f7 | 317 | |
2c75bdf3 | 318 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 319 | if (!data) |
e84357f7 | 320 | return -ENOMEM; |
e84357f7 | 321 | |
5106b92f | 322 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 323 | |
57295073 LPC |
324 | switch (widget->id) { |
325 | case snd_soc_dapm_switch: | |
326 | case snd_soc_dapm_mixer: | |
327 | case snd_soc_dapm_mixer_named_ctl: | |
328 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
329 | ||
e7aa450f CYT |
330 | if (mc->autodisable && snd_soc_volsw_is_stereo(mc)) |
331 | dev_warn(widget->dapm->dev, | |
332 | "ASoC: Unsupported stereo autodisable control '%s'\n", | |
333 | ctrl_name); | |
334 | ||
57295073 LPC |
335 | if (mc->autodisable) { |
336 | struct snd_soc_dapm_widget template; | |
337 | ||
41d80025 | 338 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
773da9b3 CK |
339 | "Autodisable"); |
340 | if (!name) { | |
341 | ret = -ENOMEM; | |
342 | goto err_data; | |
343 | } | |
344 | ||
57295073 LPC |
345 | memset(&template, 0, sizeof(template)); |
346 | template.reg = mc->reg; | |
347 | template.mask = (1 << fls(mc->max)) - 1; | |
348 | template.shift = mc->shift; | |
349 | if (mc->invert) | |
350 | template.off_val = mc->max; | |
351 | else | |
352 | template.off_val = 0; | |
353 | template.on_val = template.off_val; | |
354 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 355 | template.name = name; |
57295073 | 356 | |
2daabd78 LPC |
357 | data->value = template.on_val; |
358 | ||
02aa78ab LG |
359 | data->widget = |
360 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 361 | &template); |
e18077b6 | 362 | kfree(name); |
37e1df8c LW |
363 | if (IS_ERR(data->widget)) { |
364 | ret = PTR_ERR(data->widget); | |
365 | goto err_data; | |
366 | } | |
57295073 | 367 | if (!data->widget) { |
773da9b3 | 368 | ret = -ENOMEM; |
e18077b6 | 369 | goto err_data; |
57295073 LPC |
370 | } |
371 | } | |
372 | break; | |
d714f97c | 373 | case snd_soc_dapm_demux: |
561ed680 CK |
374 | case snd_soc_dapm_mux: |
375 | e = (struct soc_enum *)kcontrol->private_value; | |
376 | ||
377 | if (e->autodisable) { | |
378 | struct snd_soc_dapm_widget template; | |
379 | ||
41d80025 | 380 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
561ed680 CK |
381 | "Autodisable"); |
382 | if (!name) { | |
383 | ret = -ENOMEM; | |
384 | goto err_data; | |
385 | } | |
386 | ||
387 | memset(&template, 0, sizeof(template)); | |
388 | template.reg = e->reg; | |
389 | template.mask = e->mask << e->shift_l; | |
390 | template.shift = e->shift_l; | |
391 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
392 | template.on_val = template.off_val; | |
393 | template.id = snd_soc_dapm_kcontrol; | |
394 | template.name = name; | |
395 | ||
396 | data->value = template.on_val; | |
397 | ||
ffacb48e CK |
398 | data->widget = snd_soc_dapm_new_control_unlocked( |
399 | widget->dapm, &template); | |
e18077b6 | 400 | kfree(name); |
37e1df8c LW |
401 | if (IS_ERR(data->widget)) { |
402 | ret = PTR_ERR(data->widget); | |
403 | goto err_data; | |
404 | } | |
561ed680 CK |
405 | if (!data->widget) { |
406 | ret = -ENOMEM; | |
e18077b6 | 407 | goto err_data; |
561ed680 CK |
408 | } |
409 | ||
410 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
411 | widget, NULL, NULL); | |
412 | } | |
413 | break; | |
57295073 LPC |
414 | default: |
415 | break; | |
416 | } | |
417 | ||
e84357f7 LPC |
418 | kcontrol->private_data = data; |
419 | ||
420 | return 0; | |
773da9b3 | 421 | |
773da9b3 CK |
422 | err_data: |
423 | kfree(data); | |
424 | return ret; | |
e84357f7 LPC |
425 | } |
426 | ||
427 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
428 | { | |
429 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
ff2faf12 SK |
430 | |
431 | list_del(&data->paths); | |
2c75bdf3 | 432 | kfree(data->wlist); |
e84357f7 LPC |
433 | kfree(data); |
434 | } | |
435 | ||
436 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
437 | const struct snd_kcontrol *kcontrol) | |
438 | { | |
439 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
440 | ||
2c75bdf3 | 441 | return data->wlist; |
e84357f7 LPC |
442 | } |
443 | ||
444 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
445 | struct snd_soc_dapm_widget *widget) | |
446 | { | |
447 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
448 | struct snd_soc_dapm_widget_list *new_wlist; |
449 | unsigned int n; | |
e84357f7 | 450 | |
2c75bdf3 LPC |
451 | if (data->wlist) |
452 | n = data->wlist->num_widgets + 1; | |
453 | else | |
454 | n = 1; | |
455 | ||
456 | new_wlist = krealloc(data->wlist, | |
457 | sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); | |
458 | if (!new_wlist) | |
e84357f7 LPC |
459 | return -ENOMEM; |
460 | ||
2c75bdf3 LPC |
461 | new_wlist->widgets[n - 1] = widget; |
462 | new_wlist->num_widgets = n; | |
e84357f7 | 463 | |
2c75bdf3 | 464 | data->wlist = new_wlist; |
e84357f7 LPC |
465 | |
466 | return 0; | |
467 | } | |
468 | ||
5106b92f LPC |
469 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
470 | struct snd_soc_dapm_path *path) | |
471 | { | |
472 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
473 | ||
474 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
475 | } |
476 | ||
477 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
478 | { | |
479 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
480 | ||
481 | if (!data->widget) | |
482 | return true; | |
483 | ||
484 | return data->widget->power; | |
5106b92f LPC |
485 | } |
486 | ||
487 | static struct list_head *dapm_kcontrol_get_path_list( | |
488 | const struct snd_kcontrol *kcontrol) | |
489 | { | |
490 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
491 | ||
492 | return &data->paths; | |
493 | } | |
494 | ||
495 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
496 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
497 | list_kcontrol) | |
498 | ||
5dc0158a | 499 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
500 | { |
501 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
502 | ||
503 | return data->value; | |
504 | } | |
5dc0158a | 505 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
506 | |
507 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
508 | unsigned int value) | |
509 | { | |
510 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
511 | ||
512 | if (data->value == value) | |
513 | return false; | |
514 | ||
57295073 LPC |
515 | if (data->widget) |
516 | data->widget->on_val = value; | |
517 | ||
cf7c1de2 LPC |
518 | data->value = value; |
519 | ||
520 | return true; | |
521 | } | |
522 | ||
93e39a11 M |
523 | /** |
524 | * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a | |
525 | * kcontrol | |
526 | * @kcontrol: The kcontrol | |
527 | */ | |
528 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( | |
529 | struct snd_kcontrol *kcontrol) | |
530 | { | |
531 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; | |
532 | } | |
533 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); | |
534 | ||
ce0fc93a LPC |
535 | /** |
536 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
537 | * kcontrol | |
538 | * @kcontrol: The kcontrol | |
539 | * | |
540 | * Note: This function must only be used on kcontrols that are known to have | |
541 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
542 | */ | |
543 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
544 | struct snd_kcontrol *kcontrol) | |
545 | { | |
546 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
547 | } | |
548 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
549 | ||
6c120e19 LG |
550 | static void dapm_reset(struct snd_soc_card *card) |
551 | { | |
552 | struct snd_soc_dapm_widget *w; | |
553 | ||
f9fa2b18 MB |
554 | lockdep_assert_held(&card->dapm_mutex); |
555 | ||
6c120e19 LG |
556 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
557 | ||
558 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 559 | w->new_power = w->power; |
6c120e19 | 560 | w->power_checked = false; |
6c120e19 LG |
561 | } |
562 | } | |
563 | ||
94f99c87 LPC |
564 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
565 | { | |
566 | if (!dapm->component) | |
567 | return NULL; | |
568 | return dapm->component->name_prefix; | |
569 | } | |
570 | ||
ce0fc93a | 571 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 572 | unsigned int *value) |
0445bdf4 | 573 | { |
ce0fc93a | 574 | if (!dapm->component) |
e2c330b9 | 575 | return -EIO; |
ce0fc93a | 576 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
577 | } |
578 | ||
ce0fc93a | 579 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 580 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 581 | { |
ce0fc93a | 582 | if (!dapm->component) |
e2c330b9 | 583 | return -EIO; |
fcf6c5ea MB |
584 | return snd_soc_component_update_bits(dapm->component, reg, |
585 | mask, value); | |
49575fb5 LG |
586 | } |
587 | ||
ce0fc93a LPC |
588 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
589 | int reg, unsigned int mask, unsigned int value) | |
590 | { | |
591 | if (!dapm->component) | |
592 | return -EIO; | |
593 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
594 | } | |
595 | ||
eb270e98 MB |
596 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
597 | { | |
e2c330b9 LPC |
598 | if (dapm->component) |
599 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
600 | } |
601 | ||
45a110a1 CK |
602 | static struct snd_soc_dapm_widget * |
603 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
604 | { | |
605 | struct snd_soc_dapm_widget *w = wcache->widget; | |
606 | struct list_head *wlist; | |
607 | const int depth = 2; | |
608 | int i = 0; | |
609 | ||
610 | if (w) { | |
611 | wlist = &w->dapm->card->widgets; | |
612 | ||
613 | list_for_each_entry_from(w, wlist, list) { | |
614 | if (!strcmp(name, w->name)) | |
615 | return w; | |
616 | ||
617 | if (++i == depth) | |
618 | break; | |
619 | } | |
620 | } | |
621 | ||
622 | return NULL; | |
623 | } | |
624 | ||
625 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
626 | struct snd_soc_dapm_widget *w) | |
627 | { | |
628 | wcache->widget = w; | |
629 | } | |
630 | ||
fa880775 LPC |
631 | /** |
632 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
633 | * @dapm: The DAPM context for which to set the level | |
634 | * @level: The level to set | |
635 | * | |
636 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
637 | * callback of DAPM context with the specified level. This will even happen if | |
638 | * the context is already at the same level. Furthermore it will not go through | |
639 | * the normal bias level sequencing, meaning any intermediate states between the | |
640 | * current and the target state will not be entered. | |
641 | * | |
642 | * Note that the change in bias level is only temporary and the next time | |
643 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
644 | * determined by the DAPM core. The function is mainly intended to be used to | |
645 | * used during probe or resume from suspend to power up the device so | |
646 | * initialization can be done, before the DAPM core takes over. | |
647 | */ | |
648 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
649 | enum snd_soc_bias_level level) | |
650 | { | |
651 | int ret = 0; | |
652 | ||
653 | if (dapm->set_bias_level) | |
654 | ret = dapm->set_bias_level(dapm, level); | |
655 | ||
f4bf8d77 LPC |
656 | if (ret == 0) |
657 | dapm->bias_level = level; | |
658 | ||
fa880775 LPC |
659 | return ret; |
660 | } | |
661 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
662 | ||
452c5eaa MB |
663 | /** |
664 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 665 | * @dapm: DAPM context |
452c5eaa MB |
666 | * @level: level to configure |
667 | * | |
668 | * Configure the bias (power) levels for the SoC audio device. | |
669 | * | |
670 | * Returns 0 for success else error. | |
671 | */ | |
ed5a4c47 | 672 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 673 | enum snd_soc_bias_level level) |
452c5eaa | 674 | { |
ed5a4c47 | 675 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
676 | int ret = 0; |
677 | ||
84e90930 MB |
678 | trace_snd_soc_bias_level_start(card, level); |
679 | ||
f0fba2ad | 680 | if (card && card->set_bias_level) |
d4c6005f | 681 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
682 | if (ret != 0) |
683 | goto out; | |
684 | ||
fa880775 LPC |
685 | if (!card || dapm != &card->dapm) |
686 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 687 | |
171ec6b0 MB |
688 | if (ret != 0) |
689 | goto out; | |
690 | ||
691 | if (card && card->set_bias_level_post) | |
d4c6005f | 692 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 693 | out: |
84e90930 MB |
694 | trace_snd_soc_bias_level_done(card, level); |
695 | ||
452c5eaa MB |
696 | return ret; |
697 | } | |
698 | ||
74b8f955 | 699 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 700 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
701 | struct snd_soc_dapm_path *path, const char *control_name, |
702 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 703 | { |
d714f97c | 704 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 705 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 706 | unsigned int val, item; |
2b97eabc | 707 | int i; |
24ff33ac | 708 | |
234c0b8f | 709 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 710 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
711 | val = (val >> e->shift_l) & e->mask; |
712 | item = snd_soc_enum_val_to_item(e, val); | |
713 | } else { | |
24ff33ac DP |
714 | /* since a virtual mux has no backing registers to |
715 | * decide which path to connect, it will try to match | |
716 | * with the first enumeration. This is to ensure | |
717 | * that the default mux choice (the first) will be | |
718 | * correctly powered up during initialization. | |
719 | */ | |
234c0b8f | 720 | item = 0; |
24ff33ac | 721 | } |
2e72f8e3 | 722 | |
f9e0b4af XY |
723 | i = match_string(e->texts, e->items, control_name); |
724 | if (i < 0) | |
725 | return -ENODEV; | |
726 | ||
727 | path->name = e->texts[i]; | |
728 | path->connect = (i == item); | |
729 | return 0; | |
2b97eabc | 730 | |
2b97eabc RP |
731 | } |
732 | ||
234c0b8f | 733 | /* set up initial codec paths */ |
e7aa450f CYT |
734 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i, |
735 | int nth_path) | |
234c0b8f LPC |
736 | { |
737 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 738 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
739 | unsigned int reg = mc->reg; |
740 | unsigned int shift = mc->shift; | |
741 | unsigned int max = mc->max; | |
742 | unsigned int mask = (1 << fls(max)) - 1; | |
743 | unsigned int invert = mc->invert; | |
744 | unsigned int val; | |
745 | ||
746 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 747 | soc_dapm_read(p->sink->dapm, reg, &val); |
e7aa450f CYT |
748 | /* |
749 | * The nth_path argument allows this function to know | |
750 | * which path of a kcontrol it is setting the initial | |
751 | * status for. Ideally this would support any number | |
752 | * of paths and channels. But since kcontrols only come | |
753 | * in mono and stereo variants, we are limited to 2 | |
754 | * channels. | |
755 | * | |
756 | * The following code assumes for stereo controls the | |
757 | * first path is the left channel, and all remaining | |
758 | * paths are the right channel. | |
759 | */ | |
760 | if (snd_soc_volsw_is_stereo(mc) && nth_path > 0) { | |
761 | if (reg != mc->rreg) | |
762 | soc_dapm_read(p->sink->dapm, mc->rreg, &val); | |
763 | val = (val >> mc->rshift) & mask; | |
764 | } else { | |
765 | val = (val >> shift) & mask; | |
766 | } | |
234c0b8f LPC |
767 | if (invert) |
768 | val = max - val; | |
769 | p->connect = !!val; | |
770 | } else { | |
771 | p->connect = 0; | |
772 | } | |
773 | } | |
774 | ||
74b8f955 | 775 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 776 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
777 | struct snd_soc_dapm_path *path, const char *control_name) |
778 | { | |
e7aa450f | 779 | int i, nth_path = 0; |
2b97eabc RP |
780 | |
781 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
782 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
783 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
784 | path->name = path->sink->kcontrol_news[i].name; | |
e7aa450f | 785 | dapm_set_mixer_path_status(path, i, nth_path++); |
2b97eabc RP |
786 | return 0; |
787 | } | |
788 | } | |
789 | return -ENODEV; | |
790 | } | |
791 | ||
af46800b | 792 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 793 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
794 | const struct snd_kcontrol_new *kcontrol_new, |
795 | struct snd_kcontrol **kcontrol) | |
796 | { | |
797 | struct snd_soc_dapm_widget *w; | |
798 | int i; | |
799 | ||
800 | *kcontrol = NULL; | |
801 | ||
802 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
803 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
804 | continue; | |
af46800b SW |
805 | for (i = 0; i < w->num_kcontrols; i++) { |
806 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
807 | if (w->kcontrols) | |
808 | *kcontrol = w->kcontrols[i]; | |
809 | return 1; | |
810 | } | |
811 | } | |
812 | } | |
813 | ||
814 | return 0; | |
815 | } | |
816 | ||
85762e71 SW |
817 | /* |
818 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
819 | * create it. Either way, add the widget into the control's widget list | |
820 | */ | |
19a2557b | 821 | static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, |
946d92a1 | 822 | int kci) |
2b97eabc | 823 | { |
4b80b8c2 | 824 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 825 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 826 | const char *prefix; |
85762e71 SW |
827 | size_t prefix_len; |
828 | int shared; | |
829 | struct snd_kcontrol *kcontrol; | |
85762e71 | 830 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 831 | char *long_name = NULL; |
85762e71 | 832 | const char *name; |
e5092c96 | 833 | int ret = 0; |
efb7ac3f | 834 | |
94f99c87 | 835 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
836 | if (prefix) |
837 | prefix_len = strlen(prefix) + 1; | |
838 | else | |
839 | prefix_len = 0; | |
840 | ||
85762e71 SW |
841 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
842 | &kcontrol); | |
2b97eabc | 843 | |
85762e71 SW |
844 | if (!kcontrol) { |
845 | if (shared) { | |
846 | wname_in_long_name = false; | |
847 | kcname_in_long_name = true; | |
848 | } else { | |
849 | switch (w->id) { | |
850 | case snd_soc_dapm_switch: | |
851 | case snd_soc_dapm_mixer: | |
19a2557b | 852 | case snd_soc_dapm_pga: |
a3930ed0 | 853 | case snd_soc_dapm_out_drv: |
85762e71 SW |
854 | wname_in_long_name = true; |
855 | kcname_in_long_name = true; | |
856 | break; | |
857 | case snd_soc_dapm_mixer_named_ctl: | |
858 | wname_in_long_name = false; | |
859 | kcname_in_long_name = true; | |
860 | break; | |
d714f97c | 861 | case snd_soc_dapm_demux: |
85762e71 | 862 | case snd_soc_dapm_mux: |
85762e71 SW |
863 | wname_in_long_name = true; |
864 | kcname_in_long_name = false; | |
865 | break; | |
866 | default: | |
85762e71 | 867 | return -EINVAL; |
82cd8764 | 868 | } |
85762e71 SW |
869 | } |
870 | ||
871 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
872 | /* |
873 | * The control will get a prefix from the control | |
874 | * creation process but we're also using the same | |
875 | * prefix for widgets so cut the prefix off the | |
876 | * front of the widget name. | |
ca9c1aae | 877 | */ |
2b581074 | 878 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
879 | w->name + prefix_len, |
880 | w->kcontrol_news[kci].name); | |
e84357f7 | 881 | if (long_name == NULL) |
2b581074 | 882 | return -ENOMEM; |
85762e71 SW |
883 | |
884 | name = long_name; | |
885 | } else if (wname_in_long_name) { | |
886 | long_name = NULL; | |
887 | name = w->name + prefix_len; | |
888 | } else { | |
889 | long_name = NULL; | |
890 | name = w->kcontrol_news[kci].name; | |
891 | } | |
ca9c1aae | 892 | |
e84357f7 | 893 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 894 | prefix); |
e5092c96 DM |
895 | if (!kcontrol) { |
896 | ret = -ENOMEM; | |
897 | goto exit_free; | |
898 | } | |
899 | ||
9356e9d5 | 900 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 | 901 | |
41d80025 | 902 | ret = dapm_kcontrol_data_alloc(w, kcontrol, name); |
e84357f7 LPC |
903 | if (ret) { |
904 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 905 | goto exit_free; |
e84357f7 LPC |
906 | } |
907 | ||
85762e71 SW |
908 | ret = snd_ctl_add(card, kcontrol); |
909 | if (ret < 0) { | |
910 | dev_err(dapm->dev, | |
911 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
912 | w->name, name, ret); | |
e5092c96 | 913 | goto exit_free; |
85762e71 | 914 | } |
85762e71 | 915 | } |
2b97eabc | 916 | |
2c75bdf3 | 917 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
918 | if (ret == 0) |
919 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 920 | |
e5092c96 DM |
921 | exit_free: |
922 | kfree(long_name); | |
ca9c1aae | 923 | |
e5092c96 | 924 | return ret; |
85762e71 | 925 | } |
219b93f5 | 926 | |
85762e71 SW |
927 | /* create new dapm mixer control */ |
928 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
929 | { | |
930 | int i, ret; | |
931 | struct snd_soc_dapm_path *path; | |
561ed680 | 932 | struct dapm_kcontrol_data *data; |
85762e71 SW |
933 | |
934 | /* add kcontrol */ | |
935 | for (i = 0; i < w->num_kcontrols; i++) { | |
936 | /* match name */ | |
e63bfd45 | 937 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
938 | /* mixer/mux paths name must match control name */ |
939 | if (path->name != (char *)w->kcontrol_news[i].name) | |
940 | continue; | |
941 | ||
561ed680 | 942 | if (!w->kcontrols[i]) { |
19a2557b | 943 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
944 | if (ret < 0) |
945 | return ret; | |
2b97eabc | 946 | } |
85762e71 | 947 | |
946d92a1 | 948 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
949 | |
950 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
951 | if (data->widget) | |
952 | snd_soc_dapm_add_path(data->widget->dapm, | |
953 | data->widget, | |
954 | path->source, | |
955 | NULL, NULL); | |
2b97eabc RP |
956 | } |
957 | } | |
85762e71 SW |
958 | |
959 | return 0; | |
2b97eabc RP |
960 | } |
961 | ||
962 | /* create new dapm mux control */ | |
4b80b8c2 | 963 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 964 | { |
4b80b8c2 | 965 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 966 | enum snd_soc_dapm_direction dir; |
85762e71 | 967 | struct snd_soc_dapm_path *path; |
d714f97c | 968 | const char *type; |
af46800b | 969 | int ret; |
2b97eabc | 970 | |
d714f97c LPC |
971 | switch (w->id) { |
972 | case snd_soc_dapm_mux: | |
a3423b02 | 973 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
974 | type = "mux"; |
975 | break; | |
976 | case snd_soc_dapm_demux: | |
a3423b02 | 977 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
978 | type = "demux"; |
979 | break; | |
980 | default: | |
981 | return -EINVAL; | |
982 | } | |
983 | ||
af46800b SW |
984 | if (w->num_kcontrols != 1) { |
985 | dev_err(dapm->dev, | |
d714f97c | 986 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 987 | w->name); |
2b97eabc RP |
988 | return -EINVAL; |
989 | } | |
990 | ||
a3423b02 | 991 | if (list_empty(&w->edges[dir])) { |
d714f97c | 992 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 993 | return -EINVAL; |
af46800b | 994 | } |
ce6120cc | 995 | |
19a2557b | 996 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
997 | if (ret < 0) |
998 | return ret; | |
fad59888 | 999 | |
a3423b02 LPC |
1000 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
1001 | if (path->name) | |
1002 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 1003 | } |
2b97eabc | 1004 | |
af46800b | 1005 | return 0; |
2b97eabc RP |
1006 | } |
1007 | ||
1008 | /* create new dapm volume control */ | |
4b80b8c2 | 1009 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 1010 | { |
19a2557b JK |
1011 | int i, ret; |
1012 | ||
1013 | for (i = 0; i < w->num_kcontrols; i++) { | |
1014 | ret = dapm_create_or_share_kcontrol(w, i); | |
1015 | if (ret < 0) | |
1016 | return ret; | |
1017 | } | |
2b97eabc | 1018 | |
a6c65736 | 1019 | return 0; |
2b97eabc RP |
1020 | } |
1021 | ||
c6615082 NO |
1022 | /* create new dapm dai link control */ |
1023 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
1024 | { | |
1025 | int i, ret; | |
1026 | struct snd_kcontrol *kcontrol; | |
1027 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1028 | struct snd_card *card = dapm->card->snd_card; | |
1029 | ||
1030 | /* create control for links with > 1 config */ | |
1031 | if (w->num_params <= 1) | |
1032 | return 0; | |
1033 | ||
1034 | /* add kcontrol */ | |
1035 | for (i = 0; i < w->num_kcontrols; i++) { | |
1036 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1037 | w->name, NULL); | |
1038 | ret = snd_ctl_add(card, kcontrol); | |
1039 | if (ret < 0) { | |
1040 | dev_err(dapm->dev, | |
1041 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1042 | w->name, w->kcontrol_news[i].name, ret); | |
1043 | return ret; | |
1044 | } | |
1045 | kcontrol->private_data = w; | |
1046 | w->kcontrols[i] = kcontrol; | |
1047 | } | |
1048 | ||
1049 | return 0; | |
1050 | } | |
1051 | ||
9949788b MB |
1052 | /* We implement power down on suspend by checking the power state of |
1053 | * the ALSA card - when we are suspending the ALSA state for the card | |
1054 | * is set to D3. | |
1055 | */ | |
1056 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1057 | { | |
12ea2c78 | 1058 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1059 | |
f0fba2ad | 1060 | switch (level) { |
9949788b MB |
1061 | case SNDRV_CTL_POWER_D3hot: |
1062 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1063 | if (widget->ignore_suspend) |
30a6a1a4 | 1064 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1065 | widget->name); |
1547aba9 | 1066 | return widget->ignore_suspend; |
9949788b MB |
1067 | default: |
1068 | return 1; | |
1069 | } | |
1070 | } | |
1071 | ||
1ce43acf LPC |
1072 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1073 | struct list_head *widgets) | |
ec2e3031 | 1074 | { |
1ce43acf LPC |
1075 | struct snd_soc_dapm_widget *w; |
1076 | struct list_head *it; | |
1077 | unsigned int size = 0; | |
1078 | unsigned int i = 0; | |
ec2e3031 | 1079 | |
1ce43acf LPC |
1080 | list_for_each(it, widgets) |
1081 | size++; | |
ec2e3031 | 1082 | |
acafe7e3 | 1083 | *list = kzalloc(struct_size(*list, widgets, size), GFP_KERNEL); |
1ce43acf | 1084 | if (*list == NULL) |
ec2e3031 | 1085 | return -ENOMEM; |
ec2e3031 | 1086 | |
1ce43acf LPC |
1087 | list_for_each_entry(w, widgets, work_list) |
1088 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1089 | |
1ce43acf LPC |
1090 | (*list)->num_widgets = i; |
1091 | ||
1092 | return 0; | |
ec2e3031 LG |
1093 | } |
1094 | ||
2b97eabc | 1095 | /* |
a3423b02 LPC |
1096 | * Common implementation for is_connected_output_ep() and |
1097 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1098 | * the two specialized functions is only marginally larger then the size of the | |
1099 | * generic function and at the same time the fast path of the specialized | |
1100 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1101 | */ |
a3423b02 LPC |
1102 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1103 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
6742064a PS |
1104 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *, |
1105 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1106 | enum snd_soc_dapm_direction)), | |
1107 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1108 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1109 | { |
a3423b02 | 1110 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1111 | struct snd_soc_dapm_path *path; |
1112 | int con = 0; | |
1113 | ||
a3423b02 LPC |
1114 | if (widget->endpoints[dir] >= 0) |
1115 | return widget->endpoints[dir]; | |
024dc078 | 1116 | |
de02d078 MB |
1117 | DAPM_UPDATE_STAT(widget, path_checks); |
1118 | ||
1ce43acf LPC |
1119 | /* do we need to add this widget to the list ? */ |
1120 | if (list) | |
1121 | list_add_tail(&widget->work_list, list); | |
1122 | ||
09464974 JK |
1123 | if (custom_stop_condition && custom_stop_condition(widget, dir)) { |
1124 | widget->endpoints[dir] = 1; | |
1125 | return widget->endpoints[dir]; | |
1126 | } | |
6742064a | 1127 | |
a3423b02 LPC |
1128 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1129 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1130 | return widget->endpoints[dir]; | |
2b97eabc RP |
1131 | } |
1132 | ||
a3423b02 | 1133 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1134 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1135 | ||
c1862c8b | 1136 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1137 | continue; |
1138 | ||
8af294b4 MB |
1139 | if (path->walking) |
1140 | return 1; | |
1141 | ||
a3423b02 | 1142 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1143 | |
7ddd4cd5 | 1144 | if (path->connect) { |
8af294b4 | 1145 | path->walking = 1; |
6742064a | 1146 | con += fn(path->node[dir], list, custom_stop_condition); |
8af294b4 | 1147 | path->walking = 0; |
2b97eabc RP |
1148 | } |
1149 | } | |
1150 | ||
a3423b02 | 1151 | widget->endpoints[dir] = con; |
024dc078 | 1152 | |
2b97eabc RP |
1153 | return con; |
1154 | } | |
1155 | ||
a3423b02 LPC |
1156 | /* |
1157 | * Recursively check for a completed path to an active or physically connected | |
1158 | * output widget. Returns number of complete paths. | |
6742064a PS |
1159 | * |
1160 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1161 | * This function takes the dapm widget currently being examined and the walk | |
1162 | * direction as an arguments, it should return true if the walk should be | |
1163 | * stopped and false otherwise. | |
a3423b02 LPC |
1164 | */ |
1165 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
6742064a PS |
1166 | struct list_head *list, |
1167 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1168 | enum snd_soc_dapm_direction)) | |
a3423b02 LPC |
1169 | { |
1170 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
6742064a | 1171 | is_connected_output_ep, custom_stop_condition); |
a3423b02 LPC |
1172 | } |
1173 | ||
2b97eabc RP |
1174 | /* |
1175 | * Recursively check for a completed path to an active or physically connected | |
1176 | * input widget. Returns number of complete paths. | |
6742064a PS |
1177 | * |
1178 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1179 | * This function takes the dapm widget currently being examined and the walk | |
1180 | * direction as an arguments, it should return true if the walk should be | |
1181 | * stopped and false otherwise. | |
2b97eabc | 1182 | */ |
ec2e3031 | 1183 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
6742064a PS |
1184 | struct list_head *list, |
1185 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1186 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1187 | { |
a3423b02 | 1188 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
6742064a | 1189 | is_connected_input_ep, custom_stop_condition); |
2b97eabc RP |
1190 | } |
1191 | ||
ec2e3031 LG |
1192 | /** |
1193 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1194 | * @dai: the soc DAI. | |
1195 | * @stream: stream direction. | |
1196 | * @list: list of active widgets for this stream. | |
6742064a PS |
1197 | * @custom_stop_condition: (optional) a function meant to stop the widget graph |
1198 | * walk based on custom logic. | |
ec2e3031 | 1199 | * |
c8046000 | 1200 | * Queries DAPM graph as to whether a valid audio stream path exists for |
ec2e3031 LG |
1201 | * the initial stream specified by name. This takes into account |
1202 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1203 | * | |
6742064a PS |
1204 | * Optionally, can be supplied with a function acting as a stopping condition. |
1205 | * This function takes the dapm widget currently being examined and the walk | |
1206 | * direction as an arguments, it should return true if the walk should be | |
1207 | * stopped and false otherwise. | |
1208 | * | |
ec2e3031 LG |
1209 | * Returns the number of valid paths or negative error. |
1210 | */ | |
1211 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
6742064a PS |
1212 | struct snd_soc_dapm_widget_list **list, |
1213 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1214 | enum snd_soc_dapm_direction)) | |
ec2e3031 | 1215 | { |
313665b9 | 1216 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1217 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1218 | LIST_HEAD(widgets); |
ec2e3031 | 1219 | int paths; |
1ce43acf | 1220 | int ret; |
ec2e3031 LG |
1221 | |
1222 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 LPC |
1223 | |
1224 | /* | |
1225 | * For is_connected_{output,input}_ep fully discover the graph we need | |
1226 | * to reset the cached number of inputs and outputs. | |
1227 | */ | |
1228 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 LPC |
1229 | w->endpoints[SND_SOC_DAPM_DIR_IN] = -1; |
1230 | w->endpoints[SND_SOC_DAPM_DIR_OUT] = -1; | |
92a99ea4 | 1231 | } |
ec2e3031 | 1232 | |
130897ac | 1233 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
6742064a PS |
1234 | paths = is_connected_output_ep(dai->playback_widget, &widgets, |
1235 | custom_stop_condition); | |
130897ac | 1236 | else |
6742064a PS |
1237 | paths = is_connected_input_ep(dai->capture_widget, &widgets, |
1238 | custom_stop_condition); | |
1ce43acf LPC |
1239 | |
1240 | /* Drop starting point */ | |
1241 | list_del(widgets.next); | |
1242 | ||
1243 | ret = dapm_widget_list_create(list, &widgets); | |
1244 | if (ret) | |
30abbe77 | 1245 | paths = ret; |
ec2e3031 LG |
1246 | |
1247 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1248 | mutex_unlock(&card->dapm_mutex); |
1249 | ||
1250 | return paths; | |
1251 | } | |
1252 | ||
62ea874a MB |
1253 | /* |
1254 | * Handler for regulator supply widget. | |
1255 | */ | |
1256 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1257 | struct snd_kcontrol *kcontrol, int event) | |
1258 | { | |
c05b84d1 MB |
1259 | int ret; |
1260 | ||
eb270e98 MB |
1261 | soc_dapm_async_complete(w->dapm); |
1262 | ||
c05b84d1 | 1263 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1264 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1265 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1266 | if (ret != 0) |
1267 | dev_warn(w->dapm->dev, | |
30686c35 | 1268 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1269 | w->name, ret); |
1270 | } | |
1271 | ||
a3cc056b | 1272 | return regulator_enable(w->regulator); |
c05b84d1 | 1273 | } else { |
de9ba98b | 1274 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1275 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1276 | if (ret != 0) |
1277 | dev_warn(w->dapm->dev, | |
30686c35 | 1278 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1279 | w->name, ret); |
1280 | } | |
1281 | ||
a3cc056b | 1282 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1283 | } |
62ea874a MB |
1284 | } |
1285 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1286 | ||
5b2d15bb SK |
1287 | /* |
1288 | * Handler for pinctrl widget. | |
1289 | */ | |
1290 | int dapm_pinctrl_event(struct snd_soc_dapm_widget *w, | |
1291 | struct snd_kcontrol *kcontrol, int event) | |
1292 | { | |
1293 | struct snd_soc_dapm_pinctrl_priv *priv = w->priv; | |
1294 | struct pinctrl *p = w->pinctrl; | |
1295 | struct pinctrl_state *s; | |
1296 | ||
1297 | if (!p || !priv) | |
1298 | return -EIO; | |
1299 | ||
1300 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1301 | s = pinctrl_lookup_state(p, priv->active_state); | |
1302 | else | |
1303 | s = pinctrl_lookup_state(p, priv->sleep_state); | |
1304 | ||
1305 | if (IS_ERR(s)) | |
1306 | return PTR_ERR(s); | |
1307 | ||
1308 | return pinctrl_select_state(p, s); | |
1309 | } | |
1310 | EXPORT_SYMBOL_GPL(dapm_pinctrl_event); | |
1311 | ||
d7e7eb91 OL |
1312 | /* |
1313 | * Handler for clock supply widget. | |
1314 | */ | |
1315 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1316 | struct snd_kcontrol *kcontrol, int event) | |
1317 | { | |
1318 | if (!w->clk) | |
1319 | return -EIO; | |
1320 | ||
eb270e98 MB |
1321 | soc_dapm_async_complete(w->dapm); |
1322 | ||
ec02995a | 1323 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1324 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1325 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1326 | } else { |
37c1b927 | 1327 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1328 | return 0; |
1329 | } | |
ec02995a | 1330 | #endif |
98b3cf12 | 1331 | return 0; |
d7e7eb91 OL |
1332 | } |
1333 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1334 | ||
d805002b MB |
1335 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1336 | { | |
9b8a83b2 MB |
1337 | if (w->power_checked) |
1338 | return w->new_power; | |
1339 | ||
d805002b | 1340 | if (w->force) |
9b8a83b2 | 1341 | w->new_power = 1; |
d805002b | 1342 | else |
9b8a83b2 MB |
1343 | w->new_power = w->power_check(w); |
1344 | ||
1345 | w->power_checked = true; | |
1346 | ||
1347 | return w->new_power; | |
d805002b MB |
1348 | } |
1349 | ||
c8046000 | 1350 | /* Generic check to see if a widget should be powered. */ |
cd0f2d47 MB |
1351 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
1352 | { | |
1353 | int in, out; | |
1354 | ||
de02d078 MB |
1355 | DAPM_UPDATE_STAT(w, power_checks); |
1356 | ||
6742064a PS |
1357 | in = is_connected_input_ep(w, NULL, NULL); |
1358 | out = is_connected_output_ep(w, NULL, NULL); | |
cd0f2d47 MB |
1359 | return out != 0 && in != 0; |
1360 | } | |
1361 | ||
246d0a17 MB |
1362 | /* Check to see if a power supply is needed */ |
1363 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1364 | { | |
1365 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1366 | |
de02d078 MB |
1367 | DAPM_UPDATE_STAT(w, power_checks); |
1368 | ||
246d0a17 | 1369 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1370 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1371 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1372 | ||
bf3a9e13 MB |
1373 | if (path->weak) |
1374 | continue; | |
1375 | ||
215edda3 MB |
1376 | if (path->connected && |
1377 | !path->connected(path->source, path->sink)) | |
1378 | continue; | |
1379 | ||
f68d7e16 MB |
1380 | if (dapm_widget_power_check(path->sink)) |
1381 | return 1; | |
246d0a17 MB |
1382 | } |
1383 | ||
f68d7e16 | 1384 | return 0; |
246d0a17 MB |
1385 | } |
1386 | ||
35c64bca MB |
1387 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1388 | { | |
20bb0184 | 1389 | return w->connected; |
35c64bca MB |
1390 | } |
1391 | ||
38357ab2 MB |
1392 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1393 | struct snd_soc_dapm_widget *b, | |
828a842f | 1394 | bool power_up) |
42aa3418 | 1395 | { |
828a842f MB |
1396 | int *sort; |
1397 | ||
1398 | if (power_up) | |
1399 | sort = dapm_up_seq; | |
1400 | else | |
1401 | sort = dapm_down_seq; | |
1402 | ||
38357ab2 MB |
1403 | if (sort[a->id] != sort[b->id]) |
1404 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1405 | if (a->subseq != b->subseq) { |
1406 | if (power_up) | |
1407 | return a->subseq - b->subseq; | |
1408 | else | |
1409 | return b->subseq - a->subseq; | |
1410 | } | |
b22ead2a MB |
1411 | if (a->reg != b->reg) |
1412 | return a->reg - b->reg; | |
84dab567 MB |
1413 | if (a->dapm != b->dapm) |
1414 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1415 | |
38357ab2 MB |
1416 | return 0; |
1417 | } | |
42aa3418 | 1418 | |
38357ab2 MB |
1419 | /* Insert a widget in order into a DAPM power sequence. */ |
1420 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1421 | struct list_head *list, | |
828a842f | 1422 | bool power_up) |
38357ab2 MB |
1423 | { |
1424 | struct snd_soc_dapm_widget *w; | |
1425 | ||
1426 | list_for_each_entry(w, list, power_list) | |
828a842f | 1427 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1428 | list_add_tail(&new_widget->power_list, &w->power_list); |
1429 | return; | |
1430 | } | |
1431 | ||
1432 | list_add_tail(&new_widget->power_list, list); | |
1433 | } | |
1434 | ||
95dd5cd6 | 1435 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1436 | struct snd_soc_dapm_widget *w, int event) |
1437 | { | |
68f89ad8 MB |
1438 | const char *ev_name; |
1439 | int power, ret; | |
1440 | ||
1441 | switch (event) { | |
1442 | case SND_SOC_DAPM_PRE_PMU: | |
1443 | ev_name = "PRE_PMU"; | |
1444 | power = 1; | |
1445 | break; | |
1446 | case SND_SOC_DAPM_POST_PMU: | |
1447 | ev_name = "POST_PMU"; | |
1448 | power = 1; | |
1449 | break; | |
1450 | case SND_SOC_DAPM_PRE_PMD: | |
1451 | ev_name = "PRE_PMD"; | |
1452 | power = 0; | |
1453 | break; | |
1454 | case SND_SOC_DAPM_POST_PMD: | |
1455 | ev_name = "POST_PMD"; | |
1456 | power = 0; | |
1457 | break; | |
80114129 MB |
1458 | case SND_SOC_DAPM_WILL_PMU: |
1459 | ev_name = "WILL_PMU"; | |
1460 | power = 1; | |
1461 | break; | |
1462 | case SND_SOC_DAPM_WILL_PMD: | |
1463 | ev_name = "WILL_PMD"; | |
1464 | power = 0; | |
1465 | break; | |
68f89ad8 | 1466 | default: |
a6ed0608 | 1467 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1468 | return; |
1469 | } | |
1470 | ||
39eb5fd1 | 1471 | if (w->new_power != power) |
68f89ad8 MB |
1472 | return; |
1473 | ||
1474 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1475 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1476 | w->name, ev_name); |
eb270e98 | 1477 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1478 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1479 | ret = w->event(w, NULL, event); |
84e90930 | 1480 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1481 | if (ret < 0) |
95dd5cd6 | 1482 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1483 | ev_name, w->name, ret); |
1484 | } | |
1485 | } | |
1486 | ||
b22ead2a | 1487 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1488 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1489 | struct list_head *pending) |
163cac06 | 1490 | { |
ce0fc93a | 1491 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1492 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1493 | int reg; |
b22ead2a MB |
1494 | unsigned int value = 0; |
1495 | unsigned int mask = 0; | |
b22ead2a | 1496 | |
ce0fc93a LPC |
1497 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1498 | reg = w->reg; | |
1499 | dapm = w->dapm; | |
b22ead2a MB |
1500 | |
1501 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1502 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1503 | w->power = w->new_power; |
b22ead2a | 1504 | |
de9ba98b LPC |
1505 | mask |= w->mask << w->shift; |
1506 | if (w->power) | |
1507 | value |= w->on_val << w->shift; | |
b22ead2a | 1508 | else |
de9ba98b | 1509 | value |= w->off_val << w->shift; |
b22ead2a | 1510 | |
ce0fc93a | 1511 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1512 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1513 | w->name, reg, value, mask); | |
81628103 | 1514 | |
68f89ad8 | 1515 | /* Check for events */ |
95dd5cd6 LPC |
1516 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1517 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1518 | } |
1519 | ||
1520 | if (reg >= 0) { | |
29376bc7 MB |
1521 | /* Any widget will do, they should all be updating the |
1522 | * same register. | |
1523 | */ | |
29376bc7 | 1524 | |
ce0fc93a | 1525 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1526 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1527 | value, mask, reg, card->pop_time); |
1528 | pop_wait(card->pop_time); | |
ce0fc93a | 1529 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1530 | } |
1531 | ||
81628103 | 1532 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1533 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1534 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1535 | } |
b22ead2a | 1536 | } |
42aa3418 | 1537 | |
b22ead2a MB |
1538 | /* Apply a DAPM power sequence. |
1539 | * | |
1540 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1541 | * order to minimise the number of writes to the device required | |
1542 | * multiple widgets will be updated in a single write where possible. | |
1543 | * Currently anything that requires more than a single write is not | |
1544 | * handled. | |
1545 | */ | |
95dd5cd6 LPC |
1546 | static void dapm_seq_run(struct snd_soc_card *card, |
1547 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1548 | { |
1549 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1550 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1551 | LIST_HEAD(pending); |
1552 | int cur_sort = -1; | |
20e4859d | 1553 | int cur_subseq = -1; |
b22ead2a | 1554 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1555 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1556 | int ret, i; |
828a842f MB |
1557 | int *sort; |
1558 | ||
1559 | if (power_up) | |
1560 | sort = dapm_up_seq; | |
1561 | else | |
1562 | sort = dapm_down_seq; | |
163cac06 | 1563 | |
b22ead2a MB |
1564 | list_for_each_entry_safe(w, n, list, power_list) { |
1565 | ret = 0; | |
1566 | ||
1567 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1568 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1569 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1570 | if (!list_empty(&pending)) |
95dd5cd6 | 1571 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1572 | |
474b62d6 MB |
1573 | if (cur_dapm && cur_dapm->seq_notifier) { |
1574 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1575 | if (sort[i] == cur_sort) | |
1576 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1577 | i, |
1578 | cur_subseq); | |
474b62d6 MB |
1579 | } |
1580 | ||
eb270e98 MB |
1581 | if (cur_dapm && w->dapm != cur_dapm) |
1582 | soc_dapm_async_complete(cur_dapm); | |
1583 | ||
b22ead2a MB |
1584 | INIT_LIST_HEAD(&pending); |
1585 | cur_sort = -1; | |
b0b3e6f8 | 1586 | cur_subseq = INT_MIN; |
b22ead2a | 1587 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1588 | cur_dapm = NULL; |
b22ead2a MB |
1589 | } |
1590 | ||
163cac06 MB |
1591 | switch (w->id) { |
1592 | case snd_soc_dapm_pre: | |
1593 | if (!w->event) | |
b22ead2a MB |
1594 | list_for_each_entry_safe_continue(w, n, list, |
1595 | power_list); | |
163cac06 | 1596 | |
b22ead2a | 1597 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1598 | ret = w->event(w, |
1599 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1600 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1601 | ret = w->event(w, |
1602 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1603 | break; |
1604 | ||
1605 | case snd_soc_dapm_post: | |
1606 | if (!w->event) | |
b22ead2a MB |
1607 | list_for_each_entry_safe_continue(w, n, list, |
1608 | power_list); | |
163cac06 | 1609 | |
b22ead2a | 1610 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1611 | ret = w->event(w, |
1612 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1613 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1614 | ret = w->event(w, |
1615 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1616 | break; |
1617 | ||
b22ead2a | 1618 | default: |
81628103 MB |
1619 | /* Queue it up for application */ |
1620 | cur_sort = sort[w->id]; | |
20e4859d | 1621 | cur_subseq = w->subseq; |
81628103 | 1622 | cur_reg = w->reg; |
7be31be8 | 1623 | cur_dapm = w->dapm; |
81628103 MB |
1624 | list_move(&w->power_list, &pending); |
1625 | break; | |
163cac06 | 1626 | } |
b22ead2a MB |
1627 | |
1628 | if (ret < 0) | |
f7d41ae8 | 1629 | dev_err(w->dapm->dev, |
30a6a1a4 | 1630 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1631 | } |
b22ead2a MB |
1632 | |
1633 | if (!list_empty(&pending)) | |
95dd5cd6 | 1634 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 MB |
1635 | |
1636 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1637 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1638 | if (sort[i] == cur_sort) | |
1639 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1640 | i, cur_subseq); |
474b62d6 | 1641 | } |
eb270e98 MB |
1642 | |
1643 | list_for_each_entry(d, &card->dapm_list, list) { | |
1644 | soc_dapm_async_complete(d); | |
1645 | } | |
42aa3418 MB |
1646 | } |
1647 | ||
95dd5cd6 | 1648 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1649 | { |
95dd5cd6 | 1650 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1651 | struct snd_soc_dapm_widget_list *wlist; |
1652 | struct snd_soc_dapm_widget *w = NULL; | |
1653 | unsigned int wi; | |
97404f2e MB |
1654 | int ret; |
1655 | ||
57295073 | 1656 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1657 | return; |
1658 | ||
e84357f7 | 1659 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1660 | |
ce6cfaf1 LPC |
1661 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1662 | w = wlist->widgets[wi]; | |
1663 | ||
1664 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1665 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1666 | if (ret != 0) | |
95dd5cd6 | 1667 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1668 | w->name, ret); |
1669 | } | |
97404f2e MB |
1670 | } |
1671 | ||
ce6cfaf1 LPC |
1672 | if (!w) |
1673 | return; | |
1674 | ||
ce0fc93a LPC |
1675 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1676 | update->val); | |
97404f2e | 1677 | if (ret < 0) |
95dd5cd6 | 1678 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1679 | w->name, ret); |
97404f2e | 1680 | |
e411b0b5 CYT |
1681 | if (update->has_second_set) { |
1682 | ret = soc_dapm_update_bits(w->dapm, update->reg2, | |
1683 | update->mask2, update->val2); | |
1684 | if (ret < 0) | |
1685 | dev_err(w->dapm->dev, | |
1686 | "ASoC: %s DAPM update failed: %d\n", | |
1687 | w->name, ret); | |
1688 | } | |
1689 | ||
ce6cfaf1 LPC |
1690 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1691 | w = wlist->widgets[wi]; | |
1692 | ||
1693 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1694 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1695 | if (ret != 0) | |
95dd5cd6 | 1696 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1697 | w->name, ret); |
1698 | } | |
97404f2e MB |
1699 | } |
1700 | } | |
1701 | ||
9d0624a7 MB |
1702 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1703 | * they're changing state. | |
1704 | */ | |
1705 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1706 | { | |
1707 | struct snd_soc_dapm_context *d = data; | |
1708 | int ret; | |
1709 | ||
c8046000 | 1710 | /* If we're off and we're not supposed to go into STANDBY */ |
56fba41f MB |
1711 | if (d->bias_level == SND_SOC_BIAS_OFF && |
1712 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1713 | if (d->dev) |
1714 | pm_runtime_get_sync(d->dev); | |
1715 | ||
9d0624a7 MB |
1716 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1717 | if (ret != 0) | |
1718 | dev_err(d->dev, | |
30a6a1a4 | 1719 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1720 | } |
1721 | ||
ce85a4d7 LPC |
1722 | /* Prepare for a transition to ON or away from ON */ |
1723 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1724 | d->bias_level != SND_SOC_BIAS_ON) || | |
1725 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1726 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1727 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1728 | if (ret != 0) | |
1729 | dev_err(d->dev, | |
30a6a1a4 | 1730 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1731 | } |
1732 | } | |
1733 | ||
1734 | /* Async callback run prior to DAPM sequences - brings to their final | |
1735 | * state. | |
1736 | */ | |
1737 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1738 | { | |
1739 | struct snd_soc_dapm_context *d = data; | |
1740 | int ret; | |
1741 | ||
1742 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1743 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1744 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1745 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1746 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1747 | if (ret != 0) | |
30a6a1a4 | 1748 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1749 | ret); |
1750 | } | |
97404f2e | 1751 | |
9d0624a7 | 1752 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1753 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1754 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1755 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1756 | if (ret != 0) | |
30a6a1a4 LG |
1757 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1758 | ret); | |
f1aac484 MB |
1759 | |
1760 | if (d->dev) | |
fb644e9c | 1761 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1762 | } |
1763 | ||
1764 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1765 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1766 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1767 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1768 | if (ret != 0) | |
30a6a1a4 | 1769 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1770 | ret); |
1771 | } | |
1772 | } | |
97404f2e | 1773 | |
fe4fda5d MB |
1774 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1775 | bool power, bool connect) | |
1776 | { | |
1777 | /* If a connection is being made or broken then that update | |
1778 | * will have marked the peer dirty, otherwise the widgets are | |
1779 | * not connected and this update has no impact. */ | |
1780 | if (!connect) | |
1781 | return; | |
1782 | ||
1783 | /* If the peer is already in the state we're moving to then we | |
1784 | * won't have an impact on it. */ | |
1785 | if (power != peer->power) | |
75c1f891 | 1786 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1787 | } |
1788 | ||
05623c43 MB |
1789 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1790 | struct list_head *up_list, | |
1791 | struct list_head *down_list) | |
1792 | { | |
db432b41 MB |
1793 | struct snd_soc_dapm_path *path; |
1794 | ||
05623c43 MB |
1795 | if (w->power == power) |
1796 | return; | |
1797 | ||
1798 | trace_snd_soc_dapm_widget_power(w, power); | |
1799 | ||
db432b41 | 1800 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1801 | * also. |
db432b41 | 1802 | */ |
e63bfd45 | 1803 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1804 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1805 | ||
6dd98b0a LPC |
1806 | /* Supplies can't affect their outputs, only their inputs */ |
1807 | if (!w->is_supply) { | |
e63bfd45 | 1808 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1809 | dapm_widget_set_peer_power(path->sink, power, |
1810 | path->connect); | |
db432b41 MB |
1811 | } |
1812 | ||
05623c43 MB |
1813 | if (power) |
1814 | dapm_seq_insert(w, up_list, true); | |
1815 | else | |
1816 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1817 | } |
1818 | ||
7c81beb0 MB |
1819 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1820 | struct list_head *up_list, | |
1821 | struct list_head *down_list) | |
1822 | { | |
7c81beb0 MB |
1823 | int power; |
1824 | ||
1825 | switch (w->id) { | |
1826 | case snd_soc_dapm_pre: | |
1827 | dapm_seq_insert(w, down_list, false); | |
1828 | break; | |
1829 | case snd_soc_dapm_post: | |
1830 | dapm_seq_insert(w, up_list, true); | |
1831 | break; | |
1832 | ||
1833 | default: | |
d805002b | 1834 | power = dapm_widget_power_check(w); |
7c81beb0 | 1835 | |
05623c43 | 1836 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1837 | break; |
1838 | } | |
1839 | } | |
1840 | ||
86dbf2ac LPC |
1841 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1842 | { | |
1843 | if (dapm->idle_bias_off) | |
1844 | return true; | |
1845 | ||
1846 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1847 | case SNDRV_CTL_POWER_D3hot: | |
1848 | case SNDRV_CTL_POWER_D3cold: | |
1849 | return dapm->suspend_bias_off; | |
1850 | default: | |
1851 | break; | |
1852 | } | |
1853 | ||
1854 | return false; | |
1855 | } | |
1856 | ||
2b97eabc RP |
1857 | /* |
1858 | * Scan each dapm widget for complete audio path. | |
1859 | * A complete path is a route that has valid endpoints i.e.:- | |
1860 | * | |
1861 | * o DAC to output pin. | |
c8046000 | 1862 | * o Input pin to ADC. |
2b97eabc RP |
1863 | * o Input pin to Output pin (bypass, sidetone) |
1864 | * o DAC to ADC (loopback). | |
1865 | */ | |
95dd5cd6 | 1866 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1867 | { |
1868 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1869 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1870 | LIST_HEAD(up_list); |
1871 | LIST_HEAD(down_list); | |
2955b47d | 1872 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1873 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1874 | |
f9fa2b18 MB |
1875 | lockdep_assert_held(&card->dapm_mutex); |
1876 | ||
84e90930 MB |
1877 | trace_snd_soc_dapm_start(card); |
1878 | ||
56fba41f | 1879 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1880 | if (dapm_idle_bias_off(d)) |
497098be MB |
1881 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1882 | else | |
1883 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1884 | } |
7be31be8 | 1885 | |
6c120e19 | 1886 | dapm_reset(card); |
9b8a83b2 | 1887 | |
6d3ddc81 | 1888 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1889 | * lists indicating if they should be powered up or down. We |
1890 | * only check widgets that have been flagged as dirty but note | |
1891 | * that new widgets may be added to the dirty list while we | |
1892 | * iterate. | |
6d3ddc81 | 1893 | */ |
db432b41 | 1894 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1895 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1896 | } |
1897 | ||
f9de6d74 | 1898 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1899 | switch (w->id) { |
1900 | case snd_soc_dapm_pre: | |
1901 | case snd_soc_dapm_post: | |
1902 | /* These widgets always need to be powered */ | |
1903 | break; | |
1904 | default: | |
1905 | list_del_init(&w->dirty); | |
1906 | break; | |
1907 | } | |
db432b41 | 1908 | |
39eb5fd1 | 1909 | if (w->new_power) { |
f9de6d74 MB |
1910 | d = w->dapm; |
1911 | ||
1912 | /* Supplies and micbiases only bring the | |
1913 | * context up to STANDBY as unless something | |
1914 | * else is active and passing audio they | |
afe62367 MB |
1915 | * generally don't require full power. Signal |
1916 | * generators are virtual pins and have no | |
1917 | * power impact themselves. | |
f9de6d74 MB |
1918 | */ |
1919 | switch (w->id) { | |
afe62367 | 1920 | case snd_soc_dapm_siggen: |
da83fea6 | 1921 | case snd_soc_dapm_vmid: |
afe62367 | 1922 | break; |
f9de6d74 | 1923 | case snd_soc_dapm_supply: |
62ea874a | 1924 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 1925 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 1926 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1927 | case snd_soc_dapm_micbias: |
1928 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1929 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1930 | break; | |
1931 | default: | |
1932 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1933 | break; | |
1934 | } | |
1935 | } | |
1936 | ||
1937 | } | |
1938 | ||
85a843c5 MB |
1939 | /* Force all contexts in the card to the same bias state if |
1940 | * they're not ground referenced. | |
1941 | */ | |
56fba41f | 1942 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1943 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1944 | if (d->target_bias_level > bias) |
1945 | bias = d->target_bias_level; | |
52ba67bf | 1946 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 1947 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 1948 | d->target_bias_level = bias; |
52ba67bf | 1949 | |
de02d078 | 1950 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1951 | |
17282ba4 XX |
1952 | /* Run card bias changes at first */ |
1953 | dapm_pre_sequence_async(&card->dapm, 0); | |
1954 | /* Run other bias changes in parallel */ | |
1955 | list_for_each_entry(d, &card->dapm_list, list) { | |
1956 | if (d != &card->dapm) | |
1957 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1958 | &async_domain); | |
1959 | } | |
9d0624a7 | 1960 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 1961 | |
cf1f7c6e | 1962 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 1963 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
1964 | } |
1965 | ||
cf1f7c6e | 1966 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 1967 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
1968 | } |
1969 | ||
6d3ddc81 | 1970 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 1971 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 1972 | |
95dd5cd6 | 1973 | dapm_widget_update(card); |
97404f2e | 1974 | |
6d3ddc81 | 1975 | /* Now power up. */ |
95dd5cd6 | 1976 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 1977 | |
9d0624a7 | 1978 | /* Run all the bias changes in parallel */ |
17282ba4 XX |
1979 | list_for_each_entry(d, &card->dapm_list, list) { |
1980 | if (d != &card->dapm) | |
1981 | async_schedule_domain(dapm_post_sequence_async, d, | |
1982 | &async_domain); | |
1983 | } | |
9d0624a7 | 1984 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
1985 | /* Run card bias changes at last */ |
1986 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 1987 | |
8078d87f LG |
1988 | /* do we need to notify any clients that DAPM event is complete */ |
1989 | list_for_each_entry(d, &card->dapm_list, list) { | |
1990 | if (d->stream_event) | |
1991 | d->stream_event(d, event); | |
1992 | } | |
1993 | ||
95dd5cd6 | 1994 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 1995 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 1996 | pop_wait(card->pop_time); |
cb507e7e | 1997 | |
84e90930 MB |
1998 | trace_snd_soc_dapm_done(card); |
1999 | ||
42aa3418 | 2000 | return 0; |
2b97eabc RP |
2001 | } |
2002 | ||
79fb9387 | 2003 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
2004 | static ssize_t dapm_widget_power_read_file(struct file *file, |
2005 | char __user *user_buf, | |
2006 | size_t count, loff_t *ppos) | |
2007 | { | |
2008 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 2009 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 2010 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
2011 | char *buf; |
2012 | int in, out; | |
2013 | ssize_t ret; | |
2014 | struct snd_soc_dapm_path *p = NULL; | |
2015 | ||
2016 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2017 | if (!buf) | |
2018 | return -ENOMEM; | |
2019 | ||
e50b1e06 LPC |
2020 | mutex_lock(&card->dapm_mutex); |
2021 | ||
c1862c8b LPC |
2022 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
2023 | if (w->is_supply) { | |
2024 | in = 0; | |
2025 | out = 0; | |
2026 | } else { | |
6742064a PS |
2027 | in = is_connected_input_ep(w, NULL, NULL); |
2028 | out = is_connected_output_ep(w, NULL, NULL); | |
c1862c8b | 2029 | } |
79fb9387 | 2030 | |
f13ebada MB |
2031 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
2032 | w->name, w->power ? "On" : "Off", | |
2033 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 2034 | |
d033c36a MB |
2035 | if (w->reg >= 0) |
2036 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
de9ba98b LPC |
2037 | " - R%d(0x%x) mask 0x%x", |
2038 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a MB |
2039 | |
2040 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
2041 | ||
3eef08ba MB |
2042 | if (w->sname) |
2043 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
2044 | w->sname, | |
2045 | w->active ? "active" : "inactive"); | |
79fb9387 | 2046 | |
a3423b02 LPC |
2047 | snd_soc_dapm_for_each_direction(dir) { |
2048 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
2049 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
28735af3 | 2050 | if (p->connected && !p->connected(p->source, p->sink)) |
a3423b02 | 2051 | continue; |
215edda3 | 2052 | |
a3423b02 LPC |
2053 | if (!p->connect) |
2054 | continue; | |
215edda3 | 2055 | |
79fb9387 | 2056 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
2057 | " %s \"%s\" \"%s\"\n", |
2058 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 2059 | p->name ? p->name : "static", |
a3423b02 LPC |
2060 | p->node[rdir]->name); |
2061 | } | |
79fb9387 MB |
2062 | } |
2063 | ||
e50b1e06 LPC |
2064 | mutex_unlock(&card->dapm_mutex); |
2065 | ||
79fb9387 MB |
2066 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2067 | ||
2068 | kfree(buf); | |
2069 | return ret; | |
2070 | } | |
2071 | ||
2072 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2073 | .open = simple_open, |
79fb9387 | 2074 | .read = dapm_widget_power_read_file, |
6038f373 | 2075 | .llseek = default_llseek, |
79fb9387 MB |
2076 | }; |
2077 | ||
ef49e4fa MB |
2078 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2079 | size_t count, loff_t *ppos) | |
2080 | { | |
2081 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2082 | char *level; | |
2083 | ||
2084 | switch (dapm->bias_level) { | |
2085 | case SND_SOC_BIAS_ON: | |
2086 | level = "On\n"; | |
2087 | break; | |
2088 | case SND_SOC_BIAS_PREPARE: | |
2089 | level = "Prepare\n"; | |
2090 | break; | |
2091 | case SND_SOC_BIAS_STANDBY: | |
2092 | level = "Standby\n"; | |
2093 | break; | |
2094 | case SND_SOC_BIAS_OFF: | |
2095 | level = "Off\n"; | |
2096 | break; | |
2097 | default: | |
a6ed0608 | 2098 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2099 | level = "Unknown\n"; |
2100 | break; | |
2101 | } | |
2102 | ||
2103 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2104 | strlen(level)); | |
2105 | } | |
2106 | ||
2107 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2108 | .open = simple_open, |
ef49e4fa MB |
2109 | .read = dapm_bias_read_file, |
2110 | .llseek = default_llseek, | |
2111 | }; | |
2112 | ||
8eecaf62 LPC |
2113 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2114 | struct dentry *parent) | |
79fb9387 | 2115 | { |
79fb9387 MB |
2116 | struct dentry *d; |
2117 | ||
6553bf06 LPC |
2118 | if (!parent) |
2119 | return; | |
2120 | ||
8eecaf62 LPC |
2121 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2122 | ||
2123 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 2124 | dev_warn(dapm->dev, |
30a6a1a4 | 2125 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 2126 | return; |
8eecaf62 | 2127 | } |
79fb9387 | 2128 | |
ef49e4fa MB |
2129 | d = debugfs_create_file("bias_level", 0444, |
2130 | dapm->debugfs_dapm, dapm, | |
2131 | &dapm_bias_fops); | |
2132 | if (!d) | |
2133 | dev_warn(dapm->dev, | |
2134 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 2135 | } |
ef49e4fa | 2136 | |
d5d1e0be LPC |
2137 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2138 | { | |
2139 | struct snd_soc_dapm_context *dapm = w->dapm; | |
2140 | struct dentry *d; | |
79fb9387 | 2141 | |
d5d1e0be LPC |
2142 | if (!dapm->debugfs_dapm || !w->name) |
2143 | return; | |
2144 | ||
2145 | d = debugfs_create_file(w->name, 0444, | |
2146 | dapm->debugfs_dapm, w, | |
2147 | &dapm_widget_power_fops); | |
2148 | if (!d) | |
2149 | dev_warn(w->dapm->dev, | |
2150 | "ASoC: Failed to create %s debugfs file\n", | |
2151 | w->name); | |
79fb9387 | 2152 | } |
d5d1e0be | 2153 | |
6c45e126 LPC |
2154 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2155 | { | |
2156 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
2157 | } | |
2158 | ||
79fb9387 | 2159 | #else |
8eecaf62 LPC |
2160 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2161 | struct dentry *parent) | |
79fb9387 MB |
2162 | { |
2163 | } | |
d5d1e0be LPC |
2164 | |
2165 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2166 | { | |
2167 | } | |
2168 | ||
6c45e126 LPC |
2169 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2170 | { | |
2171 | } | |
2172 | ||
79fb9387 MB |
2173 | #endif |
2174 | ||
4a201948 LPC |
2175 | /* |
2176 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2177 | * @path: The path to update | |
2178 | * @connect: The new connect state of the path. True if the path is connected, | |
c8046000 | 2179 | * false if it is disconnected. |
4a201948 LPC |
2180 | * @reason: The reason why the path changed (for debugging only) |
2181 | */ | |
2182 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2183 | bool connect, const char *reason) | |
2184 | { | |
2185 | if (path->connect == connect) | |
2186 | return; | |
2187 | ||
2188 | path->connect = connect; | |
2189 | dapm_mark_dirty(path->source, reason); | |
2190 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2191 | dapm_path_invalidate(path); |
4a201948 LPC |
2192 | } |
2193 | ||
2b97eabc | 2194 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2195 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2196 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2197 | { |
2198 | struct snd_soc_dapm_path *path; | |
2199 | int found = 0; | |
4a201948 | 2200 | bool connect; |
2b97eabc | 2201 | |
f9fa2b18 MB |
2202 | lockdep_assert_held(&card->dapm_mutex); |
2203 | ||
2b97eabc | 2204 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2205 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2206 | found = 1; |
2207 | /* we now need to match the string in the enum to the path */ | |
4a201948 LPC |
2208 | if (!(strcmp(path->name, e->texts[mux]))) |
2209 | connect = true; | |
2210 | else | |
2211 | connect = false; | |
2212 | ||
2213 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2214 | } |
2215 | ||
ce6cfaf1 | 2216 | if (found) |
95dd5cd6 | 2217 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2218 | |
618dae11 | 2219 | return found; |
2b97eabc | 2220 | } |
4edbb345 | 2221 | |
ce6cfaf1 | 2222 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2223 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2224 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2225 | { |
ce6cfaf1 | 2226 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2227 | int ret; |
2228 | ||
3cd04343 | 2229 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2230 | card->update = update; |
95dd5cd6 | 2231 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2232 | card->update = NULL; |
4edbb345 | 2233 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2234 | if (ret > 0) |
c3f48ae6 | 2235 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2236 | return ret; |
2237 | } | |
40f02cd9 | 2238 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2239 | |
1b075e3f | 2240 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2241 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
e7aa450f CYT |
2242 | struct snd_kcontrol *kcontrol, |
2243 | int connect, int rconnect) | |
2b97eabc RP |
2244 | { |
2245 | struct snd_soc_dapm_path *path; | |
2246 | int found = 0; | |
2247 | ||
f9fa2b18 MB |
2248 | lockdep_assert_held(&card->dapm_mutex); |
2249 | ||
2b97eabc | 2250 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2251 | dapm_kcontrol_for_each_path(path, kcontrol) { |
e7aa450f CYT |
2252 | /* |
2253 | * Ideally this function should support any number of | |
2254 | * paths and channels. But since kcontrols only come | |
2255 | * in mono and stereo variants, we are limited to 2 | |
2256 | * channels. | |
2257 | * | |
2258 | * The following code assumes for stereo controls the | |
2259 | * first path (when 'found == 0') is the left channel, | |
2260 | * and all remaining paths (when 'found == 1') are the | |
2261 | * right channel. | |
2262 | * | |
2263 | * A stereo control is signified by a valid 'rconnect' | |
2264 | * value, either 0 for unconnected, or >= 0 for connected. | |
2265 | * This is chosen instead of using snd_soc_volsw_is_stereo, | |
2266 | * so that the behavior of snd_soc_dapm_mixer_update_power | |
2267 | * doesn't change even when the kcontrol passed in is | |
2268 | * stereo. | |
2269 | * | |
2270 | * It passes 'connect' as the path connect status for | |
2271 | * the left channel, and 'rconnect' for the right | |
2272 | * channel. | |
2273 | */ | |
2274 | if (found && rconnect >= 0) | |
2275 | soc_dapm_connect_path(path, rconnect, "mixer update"); | |
2276 | else | |
2277 | soc_dapm_connect_path(path, connect, "mixer update"); | |
2b97eabc | 2278 | found = 1; |
2b97eabc RP |
2279 | } |
2280 | ||
ce6cfaf1 | 2281 | if (found) |
95dd5cd6 | 2282 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2283 | |
618dae11 | 2284 | return found; |
2b97eabc | 2285 | } |
4edbb345 | 2286 | |
ce6cfaf1 | 2287 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2288 | struct snd_kcontrol *kcontrol, int connect, |
2289 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2290 | { |
ce6cfaf1 | 2291 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2292 | int ret; |
2293 | ||
3cd04343 | 2294 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2295 | card->update = update; |
e7aa450f | 2296 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, -1); |
564c6504 | 2297 | card->update = NULL; |
4edbb345 | 2298 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2299 | if (ret > 0) |
c3f48ae6 | 2300 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2301 | return ret; |
2302 | } | |
40f02cd9 | 2303 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2304 | |
b3c25fb7 LPC |
2305 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2306 | char *buf) | |
2b97eabc | 2307 | { |
b3c25fb7 | 2308 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2309 | struct snd_soc_dapm_widget *w; |
2310 | int count = 0; | |
2311 | char *state = "not set"; | |
2312 | ||
47325078 MB |
2313 | /* card won't be set for the dummy component, as a spot fix |
2314 | * we're checking for that case specifically here but in future | |
2315 | * we will ensure that the dummy component looks like others. | |
2316 | */ | |
2317 | if (!cmpnt->card) | |
2318 | return 0; | |
2319 | ||
b3c25fb7 LPC |
2320 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2321 | if (w->dapm != dapm) | |
97c866de | 2322 | continue; |
2b97eabc | 2323 | |
c8046000 | 2324 | /* only display widgets that burn power */ |
2b97eabc RP |
2325 | switch (w->id) { |
2326 | case snd_soc_dapm_hp: | |
2327 | case snd_soc_dapm_mic: | |
2328 | case snd_soc_dapm_spk: | |
2329 | case snd_soc_dapm_line: | |
2330 | case snd_soc_dapm_micbias: | |
2331 | case snd_soc_dapm_dac: | |
2332 | case snd_soc_dapm_adc: | |
2333 | case snd_soc_dapm_pga: | |
d88429a6 | 2334 | case snd_soc_dapm_out_drv: |
2b97eabc | 2335 | case snd_soc_dapm_mixer: |
ca9c1aae | 2336 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2337 | case snd_soc_dapm_supply: |
62ea874a | 2338 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 2339 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 2340 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2341 | if (w->name) |
2342 | count += sprintf(buf + count, "%s: %s\n", | |
2343 | w->name, w->power ? "On":"Off"); | |
2344 | break; | |
2345 | default: | |
2346 | break; | |
2347 | } | |
2348 | } | |
2349 | ||
b3c25fb7 | 2350 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2351 | case SND_SOC_BIAS_ON: |
2352 | state = "On"; | |
2b97eabc | 2353 | break; |
0be9898a MB |
2354 | case SND_SOC_BIAS_PREPARE: |
2355 | state = "Prepare"; | |
2b97eabc | 2356 | break; |
0be9898a MB |
2357 | case SND_SOC_BIAS_STANDBY: |
2358 | state = "Standby"; | |
2b97eabc | 2359 | break; |
0be9898a MB |
2360 | case SND_SOC_BIAS_OFF: |
2361 | state = "Off"; | |
2b97eabc RP |
2362 | break; |
2363 | } | |
2364 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2365 | ||
2366 | return count; | |
2367 | } | |
2368 | ||
44ba2641 BC |
2369 | /* show dapm widget status in sys fs */ |
2370 | static ssize_t dapm_widget_show(struct device *dev, | |
2371 | struct device_attribute *attr, char *buf) | |
2372 | { | |
2373 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
2374 | int i, count = 0; | |
2375 | ||
e50b1e06 LPC |
2376 | mutex_lock(&rtd->card->dapm_mutex); |
2377 | ||
44ba2641 | 2378 | for (i = 0; i < rtd->num_codecs; i++) { |
b3c25fb7 LPC |
2379 | struct snd_soc_component *cmpnt = rtd->codec_dais[i]->component; |
2380 | ||
2381 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2382 | } |
2383 | ||
e50b1e06 LPC |
2384 | mutex_unlock(&rtd->card->dapm_mutex); |
2385 | ||
44ba2641 BC |
2386 | return count; |
2387 | } | |
2388 | ||
c828a892 | 2389 | static DEVICE_ATTR_RO(dapm_widget); |
2b97eabc | 2390 | |
d29697dc TI |
2391 | struct attribute *soc_dapm_dev_attrs[] = { |
2392 | &dev_attr_dapm_widget.attr, | |
2393 | NULL | |
2394 | }; | |
2b97eabc | 2395 | |
8872293f LPC |
2396 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2397 | { | |
a3423b02 LPC |
2398 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2399 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2400 | list_del(&path->list_kcontrol); |
8872293f | 2401 | list_del(&path->list); |
8872293f LPC |
2402 | kfree(path); |
2403 | } | |
2404 | ||
b97e2698 LPC |
2405 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2406 | { | |
2407 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2408 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2409 | |
2410 | list_del(&w->list); | |
2411 | /* | |
2412 | * remove source and sink paths associated to this widget. | |
2413 | * While removing the path, remove reference to it from both | |
2414 | * source and sink widgets so that path is removed only once. | |
2415 | */ | |
a3423b02 LPC |
2416 | snd_soc_dapm_for_each_direction(dir) { |
2417 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2418 | dapm_free_path(p); | |
2419 | } | |
b97e2698 LPC |
2420 | |
2421 | kfree(w->kcontrols); | |
48068961 | 2422 | kfree_const(w->name); |
b97e2698 LPC |
2423 | kfree(w); |
2424 | } | |
2425 | ||
fd589a1b JS |
2426 | void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm) |
2427 | { | |
2428 | dapm->path_sink_cache.widget = NULL; | |
2429 | dapm->path_source_cache.widget = NULL; | |
2430 | } | |
2431 | ||
2b97eabc | 2432 | /* free all dapm widgets and resources */ |
ce6120cc | 2433 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2434 | { |
2435 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2436 | |
97c866de JN |
2437 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2438 | if (w->dapm != dapm) | |
2439 | continue; | |
b97e2698 | 2440 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2441 | } |
fd589a1b | 2442 | snd_soc_dapm_reset_cache(dapm); |
2b97eabc RP |
2443 | } |
2444 | ||
91a5fca4 LPC |
2445 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2446 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2447 | bool search_other_contexts) | |
a5302181 LG |
2448 | { |
2449 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2450 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2451 | |
97c866de | 2452 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2453 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2454 | if (w->dapm == dapm) |
2455 | return w; | |
2456 | else | |
2457 | fallback = w; | |
a5302181 LG |
2458 | } |
2459 | } | |
2460 | ||
91a5fca4 LPC |
2461 | if (search_other_contexts) |
2462 | return fallback; | |
2463 | ||
2464 | return NULL; | |
2465 | } | |
2466 | ||
2467 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2468 | const char *pin, int status) | |
2469 | { | |
2470 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2471 | ||
f9fa2b18 MB |
2472 | dapm_assert_locked(dapm); |
2473 | ||
91a5fca4 | 2474 | if (!w) { |
30a6a1a4 | 2475 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2476 | return -EINVAL; |
0d86733c MB |
2477 | } |
2478 | ||
92a99ea4 | 2479 | if (w->connected != status) { |
1a8b2d9d | 2480 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2481 | dapm_widget_invalidate_input_paths(w); |
2482 | dapm_widget_invalidate_output_paths(w); | |
2483 | } | |
1a8b2d9d | 2484 | |
91a5fca4 LPC |
2485 | w->connected = status; |
2486 | if (status == 0) | |
2487 | w->force = 0; | |
2488 | ||
2489 | return 0; | |
a5302181 LG |
2490 | } |
2491 | ||
2b97eabc | 2492 | /** |
3eb29dfb | 2493 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2494 | * @dapm: DAPM context |
2b97eabc RP |
2495 | * |
2496 | * Walks all dapm audio paths and powers widgets according to their | |
2497 | * stream or path usage. | |
2498 | * | |
3eb29dfb CK |
2499 | * Requires external locking. |
2500 | * | |
2b97eabc RP |
2501 | * Returns 0 for success. |
2502 | */ | |
3eb29dfb | 2503 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2504 | { |
4f4c0072 MB |
2505 | /* |
2506 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2507 | * silly DAPM runs during card startup. | |
2508 | */ | |
2509 | if (!dapm->card || !dapm->card->instantiated) | |
2510 | return 0; | |
2511 | ||
3eb29dfb CK |
2512 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2513 | } | |
2514 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2515 | ||
2516 | /** | |
2517 | * snd_soc_dapm_sync - scan and power dapm paths | |
2518 | * @dapm: DAPM context | |
2519 | * | |
2520 | * Walks all dapm audio paths and powers widgets according to their | |
2521 | * stream or path usage. | |
2522 | * | |
2523 | * Returns 0 for success. | |
2524 | */ | |
2525 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2526 | { | |
2527 | int ret; | |
2528 | ||
3cd04343 | 2529 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2530 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2531 | mutex_unlock(&dapm->card->dapm_mutex); |
2532 | return ret; | |
2b97eabc | 2533 | } |
a5302181 | 2534 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2535 | |
6dd98b0a LPC |
2536 | /* |
2537 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2538 | * @w: The widget for which to update the flags | |
2539 | * | |
2540 | * Some widgets have a dynamic category which depends on which neighbors they | |
2541 | * are connected to. This function update the category for these widgets. | |
2542 | * | |
2543 | * This function must be called whenever a path is added or removed to a widget. | |
2544 | */ | |
2545 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2546 | { | |
a3423b02 | 2547 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2548 | struct snd_soc_dapm_path *p; |
a3423b02 | 2549 | unsigned int ep; |
6dd98b0a LPC |
2550 | |
2551 | switch (w->id) { | |
2552 | case snd_soc_dapm_input: | |
c8046000 | 2553 | /* On a fully routed card an input is never a source */ |
86d75003 | 2554 | if (w->dapm->card->fully_routed) |
a3423b02 LPC |
2555 | return; |
2556 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2557 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2558 | if (p->source->id == snd_soc_dapm_micbias || |
2559 | p->source->id == snd_soc_dapm_mic || | |
2560 | p->source->id == snd_soc_dapm_line || | |
2561 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2562 | ep = 0; |
6dd98b0a LPC |
2563 | break; |
2564 | } | |
2565 | } | |
2566 | break; | |
2567 | case snd_soc_dapm_output: | |
86d75003 LPC |
2568 | /* On a fully routed card a output is never a sink */ |
2569 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2570 | return; |
2571 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2572 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2573 | if (p->sink->id == snd_soc_dapm_spk || |
2574 | p->sink->id == snd_soc_dapm_hp || | |
2575 | p->sink->id == snd_soc_dapm_line || | |
2576 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2577 | ep = 0; |
6dd98b0a LPC |
2578 | break; |
2579 | } | |
2580 | } | |
2581 | break; | |
2582 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2583 | ep = 0; |
2584 | snd_soc_dapm_for_each_direction(dir) { | |
2585 | if (!list_empty(&w->edges[dir])) | |
2586 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2587 | } | |
6dd98b0a LPC |
2588 | break; |
2589 | default: | |
a3423b02 | 2590 | return; |
6dd98b0a | 2591 | } |
a3423b02 LPC |
2592 | |
2593 | w->is_ep = ep; | |
6dd98b0a LPC |
2594 | } |
2595 | ||
d714f97c LPC |
2596 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2597 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2598 | const char *control) | |
2599 | { | |
2600 | bool dynamic_source = false; | |
2601 | bool dynamic_sink = false; | |
2602 | ||
2603 | if (!control) | |
2604 | return 0; | |
2605 | ||
2606 | switch (source->id) { | |
2607 | case snd_soc_dapm_demux: | |
2608 | dynamic_source = true; | |
2609 | break; | |
2610 | default: | |
2611 | break; | |
2612 | } | |
2613 | ||
2614 | switch (sink->id) { | |
2615 | case snd_soc_dapm_mux: | |
2616 | case snd_soc_dapm_switch: | |
2617 | case snd_soc_dapm_mixer: | |
2618 | case snd_soc_dapm_mixer_named_ctl: | |
2619 | dynamic_sink = true; | |
2620 | break; | |
2621 | default: | |
2622 | break; | |
2623 | } | |
2624 | ||
2625 | if (dynamic_source && dynamic_sink) { | |
2626 | dev_err(dapm->dev, | |
2627 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2628 | source->name, control, sink->name); | |
2629 | return -EINVAL; | |
2630 | } else if (!dynamic_source && !dynamic_sink) { | |
2631 | dev_err(dapm->dev, | |
2632 | "Control not supported for path %s -> [%s] -> %s\n", | |
2633 | source->name, control, sink->name); | |
2634 | return -EINVAL; | |
2635 | } | |
2636 | ||
2637 | return 0; | |
2638 | } | |
2639 | ||
2553628e LPC |
2640 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2641 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2642 | const char *control, | |
2643 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2644 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2645 | { |
a3423b02 LPC |
2646 | struct snd_soc_dapm_widget *widgets[2]; |
2647 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2648 | struct snd_soc_dapm_path *path; |
2553628e | 2649 | int ret; |
2b97eabc | 2650 | |
e409dfbf LPC |
2651 | if (wsink->is_supply && !wsource->is_supply) { |
2652 | dev_err(dapm->dev, | |
2653 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2654 | wsource->name, wsink->name); | |
2655 | return -EINVAL; | |
2656 | } | |
2657 | ||
2658 | if (connected && !wsource->is_supply) { | |
2659 | dev_err(dapm->dev, | |
2660 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2661 | wsource->name, wsink->name); | |
2662 | return -EINVAL; | |
2663 | } | |
2664 | ||
2665 | if (wsource->is_supply && control) { | |
2666 | dev_err(dapm->dev, | |
2667 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2668 | wsource->name, control, wsink->name); | |
2669 | return -EINVAL; | |
2670 | } | |
2671 | ||
d714f97c LPC |
2672 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2673 | if (ret) | |
2674 | return ret; | |
2675 | ||
2b97eabc RP |
2676 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2677 | if (!path) | |
2678 | return -ENOMEM; | |
2679 | ||
a3423b02 LPC |
2680 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2681 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2682 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2683 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2684 | ||
2553628e | 2685 | path->connected = connected; |
2b97eabc | 2686 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2687 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2688 | |
c1862c8b LPC |
2689 | if (wsource->is_supply || wsink->is_supply) |
2690 | path->is_supply = 1; | |
2691 | ||
2b97eabc RP |
2692 | /* connect static paths */ |
2693 | if (control == NULL) { | |
2b97eabc | 2694 | path->connect = 1; |
5fe5b767 | 2695 | } else { |
d714f97c LPC |
2696 | switch (wsource->id) { |
2697 | case snd_soc_dapm_demux: | |
2698 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2699 | if (ret) | |
2700 | goto err; | |
2701 | break; | |
2702 | default: | |
2703 | break; | |
2704 | } | |
2705 | ||
5fe5b767 LPC |
2706 | switch (wsink->id) { |
2707 | case snd_soc_dapm_mux: | |
d714f97c | 2708 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2709 | if (ret != 0) |
2710 | goto err; | |
2711 | break; | |
2712 | case snd_soc_dapm_switch: | |
2713 | case snd_soc_dapm_mixer: | |
2714 | case snd_soc_dapm_mixer_named_ctl: | |
2715 | ret = dapm_connect_mixer(dapm, path, control); | |
2716 | if (ret != 0) | |
2717 | goto err; | |
2718 | break; | |
2719 | default: | |
d714f97c | 2720 | break; |
5fe5b767 | 2721 | } |
2b97eabc | 2722 | } |
fabd0384 | 2723 | |
5fe5b767 | 2724 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2725 | snd_soc_dapm_for_each_direction(dir) |
2726 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2727 | |
a3423b02 LPC |
2728 | snd_soc_dapm_for_each_direction(dir) { |
2729 | dapm_update_widget_flags(widgets[dir]); | |
2730 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2731 | } | |
5fe5b767 | 2732 | |
92a99ea4 LPC |
2733 | if (dapm->card->instantiated && path->connect) |
2734 | dapm_path_invalidate(path); | |
2735 | ||
2b97eabc | 2736 | return 0; |
2553628e LPC |
2737 | err: |
2738 | kfree(path); | |
2739 | return ret; | |
2740 | } | |
2b97eabc | 2741 | |
2553628e | 2742 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2743 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2744 | { |
2745 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2746 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2747 | const char *sink; | |
2748 | const char *source; | |
2749 | char prefixed_sink[80]; | |
2750 | char prefixed_source[80]; | |
94f99c87 | 2751 | const char *prefix; |
2553628e LPC |
2752 | int ret; |
2753 | ||
94f99c87 LPC |
2754 | prefix = soc_dapm_prefix(dapm); |
2755 | if (prefix) { | |
2553628e | 2756 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2757 | prefix, route->sink); |
2553628e LPC |
2758 | sink = prefixed_sink; |
2759 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2760 | prefix, route->source); |
2553628e LPC |
2761 | source = prefixed_source; |
2762 | } else { | |
2763 | sink = route->sink; | |
2764 | source = route->source; | |
2765 | } | |
2766 | ||
45a110a1 CK |
2767 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2768 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2769 | ||
2770 | if (wsink && wsource) | |
2771 | goto skip_search; | |
2772 | ||
2553628e LPC |
2773 | /* |
2774 | * find src and dest widgets over all widgets but favor a widget from | |
2775 | * current DAPM context | |
2776 | */ | |
2777 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2778 | if (!wsink && !(strcmp(w->name, sink))) { | |
2779 | wtsink = w; | |
70c75109 | 2780 | if (w->dapm == dapm) { |
2553628e | 2781 | wsink = w; |
70c75109 CK |
2782 | if (wsource) |
2783 | break; | |
2784 | } | |
2553628e LPC |
2785 | continue; |
2786 | } | |
2787 | if (!wsource && !(strcmp(w->name, source))) { | |
2788 | wtsource = w; | |
70c75109 | 2789 | if (w->dapm == dapm) { |
2553628e | 2790 | wsource = w; |
70c75109 CK |
2791 | if (wsink) |
2792 | break; | |
2793 | } | |
2553628e LPC |
2794 | } |
2795 | } | |
2796 | /* use widget from another DAPM context if not found from this */ | |
2797 | if (!wsink) | |
2798 | wsink = wtsink; | |
2799 | if (!wsource) | |
2800 | wsource = wtsource; | |
2801 | ||
2802 | if (wsource == NULL) { | |
2803 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2804 | route->source); | |
2805 | return -ENODEV; | |
2806 | } | |
2807 | if (wsink == NULL) { | |
2808 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2809 | route->sink); | |
2810 | return -ENODEV; | |
2811 | } | |
2812 | ||
45a110a1 CK |
2813 | skip_search: |
2814 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2815 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2816 | ||
2553628e LPC |
2817 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2818 | route->connected); | |
2819 | if (ret) | |
2820 | goto err; | |
2821 | ||
2822 | return 0; | |
2b97eabc | 2823 | err: |
30a6a1a4 | 2824 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2825 | source, route->control, sink); |
2b97eabc RP |
2826 | return ret; |
2827 | } | |
105f1c28 | 2828 | |
efcc3c61 MB |
2829 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2830 | const struct snd_soc_dapm_route *route) | |
2831 | { | |
6dd98b0a | 2832 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2833 | struct snd_soc_dapm_path *path, *p; |
2834 | const char *sink; | |
2835 | const char *source; | |
2836 | char prefixed_sink[80]; | |
2837 | char prefixed_source[80]; | |
94f99c87 | 2838 | const char *prefix; |
efcc3c61 MB |
2839 | |
2840 | if (route->control) { | |
2841 | dev_err(dapm->dev, | |
30a6a1a4 | 2842 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2843 | return -EINVAL; |
2844 | } | |
2845 | ||
94f99c87 LPC |
2846 | prefix = soc_dapm_prefix(dapm); |
2847 | if (prefix) { | |
efcc3c61 | 2848 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2849 | prefix, route->sink); |
efcc3c61 MB |
2850 | sink = prefixed_sink; |
2851 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2852 | prefix, route->source); |
efcc3c61 MB |
2853 | source = prefixed_source; |
2854 | } else { | |
2855 | sink = route->sink; | |
2856 | source = route->source; | |
2857 | } | |
2858 | ||
2859 | path = NULL; | |
2860 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2861 | if (strcmp(p->source->name, source) != 0) | |
2862 | continue; | |
2863 | if (strcmp(p->sink->name, sink) != 0) | |
2864 | continue; | |
2865 | path = p; | |
2866 | break; | |
2867 | } | |
2868 | ||
2869 | if (path) { | |
6dd98b0a LPC |
2870 | wsource = path->source; |
2871 | wsink = path->sink; | |
2872 | ||
2873 | dapm_mark_dirty(wsource, "Route removed"); | |
2874 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
2875 | if (path->connect) |
2876 | dapm_path_invalidate(path); | |
efcc3c61 | 2877 | |
8872293f | 2878 | dapm_free_path(path); |
6dd98b0a LPC |
2879 | |
2880 | /* Update any path related flags */ | |
2881 | dapm_update_widget_flags(wsource); | |
2882 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 2883 | } else { |
30a6a1a4 | 2884 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2885 | source, sink); |
2886 | } | |
2887 | ||
2888 | return 0; | |
2889 | } | |
2890 | ||
105f1c28 MB |
2891 | /** |
2892 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2893 | * @dapm: DAPM context |
105f1c28 MB |
2894 | * @route: audio routes |
2895 | * @num: number of routes | |
2896 | * | |
2897 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2898 | * the widget receiving the audio signal, whilst the source is the sender | |
2899 | * of the audio signal. | |
2900 | * | |
2901 | * Returns 0 for success else error. On error all resources can be freed | |
2902 | * with a call to snd_soc_card_free(). | |
2903 | */ | |
ce6120cc | 2904 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2905 | const struct snd_soc_dapm_route *route, int num) |
2906 | { | |
62d4a4b9 | 2907 | int i, r, ret = 0; |
105f1c28 | 2908 | |
f19c181f | 2909 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
105f1c28 | 2910 | for (i = 0; i < num; i++) { |
a4e9154c | 2911 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 2912 | if (r < 0) { |
30a6a1a4 LG |
2913 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2914 | route->source, | |
2915 | route->control ? route->control : "direct", | |
2916 | route->sink); | |
62d4a4b9 | 2917 | ret = r; |
105f1c28 MB |
2918 | } |
2919 | route++; | |
2920 | } | |
a73fb2df | 2921 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2922 | |
60884c27 | 2923 | return ret; |
105f1c28 MB |
2924 | } |
2925 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2926 | ||
efcc3c61 MB |
2927 | /** |
2928 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2929 | * @dapm: DAPM context | |
2930 | * @route: audio routes | |
2931 | * @num: number of routes | |
2932 | * | |
2933 | * Removes routes from the DAPM context. | |
2934 | */ | |
2935 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2936 | const struct snd_soc_dapm_route *route, int num) | |
2937 | { | |
e066ea22 | 2938 | int i; |
efcc3c61 | 2939 | |
f19c181f | 2940 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
efcc3c61 MB |
2941 | for (i = 0; i < num; i++) { |
2942 | snd_soc_dapm_del_route(dapm, route); | |
2943 | route++; | |
2944 | } | |
2945 | mutex_unlock(&dapm->card->dapm_mutex); | |
2946 | ||
e066ea22 | 2947 | return 0; |
efcc3c61 MB |
2948 | } |
2949 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2950 | ||
bf3a9e13 MB |
2951 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2952 | const struct snd_soc_dapm_route *route) | |
2953 | { | |
2954 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2955 | route->source, | |
2956 | true); | |
2957 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2958 | route->sink, | |
2959 | true); | |
2960 | struct snd_soc_dapm_path *path; | |
2961 | int count = 0; | |
2962 | ||
2963 | if (!source) { | |
30a6a1a4 | 2964 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2965 | route->source); |
2966 | return -ENODEV; | |
2967 | } | |
2968 | ||
2969 | if (!sink) { | |
30a6a1a4 | 2970 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2971 | route->sink); |
2972 | return -ENODEV; | |
2973 | } | |
2974 | ||
2975 | if (route->control || route->connected) | |
30a6a1a4 | 2976 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2977 | route->source, route->sink); |
2978 | ||
e63bfd45 | 2979 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
2980 | if (path->sink == sink) { |
2981 | path->weak = 1; | |
2982 | count++; | |
2983 | } | |
2984 | } | |
2985 | ||
2986 | if (count == 0) | |
30a6a1a4 | 2987 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2988 | route->source, route->sink); |
2989 | if (count > 1) | |
30a6a1a4 | 2990 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2991 | count, route->source, route->sink); |
2992 | ||
2993 | return 0; | |
2994 | } | |
2995 | ||
2996 | /** | |
2997 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2998 | * @dapm: DAPM context | |
2999 | * @route: audio routes | |
3000 | * @num: number of routes | |
3001 | * | |
3002 | * Mark existing routes matching those specified in the passed array | |
3003 | * as being weak, meaning that they are ignored for the purpose of | |
3004 | * power decisions. The main intended use case is for sidetone paths | |
3005 | * which couple audio between other independent paths if they are both | |
3006 | * active in order to make the combination work better at the user | |
3007 | * level but which aren't intended to be "used". | |
3008 | * | |
3009 | * Note that CODEC drivers should not use this as sidetone type paths | |
3010 | * can frequently also be used as bypass paths. | |
3011 | */ | |
3012 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
3013 | const struct snd_soc_dapm_route *route, int num) | |
3014 | { | |
3015 | int i, err; | |
3016 | int ret = 0; | |
3017 | ||
a73fb2df | 3018 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
3019 | for (i = 0; i < num; i++) { |
3020 | err = snd_soc_dapm_weak_route(dapm, route); | |
3021 | if (err) | |
3022 | ret = err; | |
3023 | route++; | |
3024 | } | |
a73fb2df | 3025 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
3026 | |
3027 | return ret; | |
3028 | } | |
3029 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
3030 | ||
2b97eabc RP |
3031 | /** |
3032 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 3033 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
3034 | * |
3035 | * Checks the codec for any new dapm widgets and creates them if found. | |
3036 | * | |
3037 | * Returns 0 for success. | |
3038 | */ | |
824ef826 | 3039 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
3040 | { |
3041 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 3042 | unsigned int val; |
2b97eabc | 3043 | |
95dd5cd6 | 3044 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 3045 | |
95dd5cd6 | 3046 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
3047 | { |
3048 | if (w->new) | |
3049 | continue; | |
3050 | ||
fad59888 | 3051 | if (w->num_kcontrols) { |
6396bb22 | 3052 | w->kcontrols = kcalloc(w->num_kcontrols, |
fad59888 SW |
3053 | sizeof(struct snd_kcontrol *), |
3054 | GFP_KERNEL); | |
a73fb2df | 3055 | if (!w->kcontrols) { |
95dd5cd6 | 3056 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 3057 | return -ENOMEM; |
a73fb2df | 3058 | } |
fad59888 SW |
3059 | } |
3060 | ||
2b97eabc RP |
3061 | switch(w->id) { |
3062 | case snd_soc_dapm_switch: | |
3063 | case snd_soc_dapm_mixer: | |
ca9c1aae | 3064 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 3065 | dapm_new_mixer(w); |
2b97eabc RP |
3066 | break; |
3067 | case snd_soc_dapm_mux: | |
d714f97c | 3068 | case snd_soc_dapm_demux: |
4b80b8c2 | 3069 | dapm_new_mux(w); |
2b97eabc | 3070 | break; |
2b97eabc | 3071 | case snd_soc_dapm_pga: |
d88429a6 | 3072 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 3073 | dapm_new_pga(w); |
2b97eabc | 3074 | break; |
c6615082 NO |
3075 | case snd_soc_dapm_dai_link: |
3076 | dapm_new_dai_link(w); | |
3077 | break; | |
7ca3a18b | 3078 | default: |
2b97eabc RP |
3079 | break; |
3080 | } | |
b66a70d5 MB |
3081 | |
3082 | /* Read the initial power state from the device */ | |
3083 | if (w->reg >= 0) { | |
ce0fc93a | 3084 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 3085 | val = val >> w->shift; |
de9ba98b LPC |
3086 | val &= w->mask; |
3087 | if (val == w->on_val) | |
b66a70d5 MB |
3088 | w->power = 1; |
3089 | } | |
3090 | ||
2b97eabc | 3091 | w->new = 1; |
d5d1e0be | 3092 | |
7508b12a | 3093 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 3094 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
3095 | } |
3096 | ||
95dd5cd6 LPC |
3097 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
3098 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
3099 | return 0; |
3100 | } | |
3101 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
3102 | ||
3103 | /** | |
3104 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
3105 | * @kcontrol: mixer control | |
ac11a2b3 | 3106 | * @ucontrol: control element information |
2b97eabc RP |
3107 | * |
3108 | * Callback to get the value of a dapm mixer control. | |
3109 | * | |
3110 | * Returns 0 for success. | |
3111 | */ | |
3112 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3113 | struct snd_ctl_elem_value *ucontrol) | |
3114 | { | |
ce0fc93a LPC |
3115 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3116 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3117 | struct soc_mixer_control *mc = |
3118 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3119 | int reg = mc->reg; |
815ecf8d | 3120 | unsigned int shift = mc->shift; |
4eaa9819 | 3121 | int max = mc->max; |
e7aa450f | 3122 | unsigned int width = fls(max); |
815ecf8d | 3123 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3124 | unsigned int invert = mc->invert; |
e7aa450f | 3125 | unsigned int reg_val, val, rval = 0; |
ce0fc93a | 3126 | int ret = 0; |
da602ab8 | 3127 | |
57295073 | 3128 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a | 3129 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
e7aa450f CYT |
3130 | ret = soc_dapm_read(dapm, reg, ®_val); |
3131 | val = (reg_val >> shift) & mask; | |
3132 | ||
3133 | if (ret == 0 && reg != mc->rreg) | |
3134 | ret = soc_dapm_read(dapm, mc->rreg, ®_val); | |
3135 | ||
3136 | if (snd_soc_volsw_is_stereo(mc)) | |
3137 | rval = (reg_val >> mc->rshift) & mask; | |
ce0fc93a | 3138 | } else { |
e7aa450f CYT |
3139 | reg_val = dapm_kcontrol_get_value(kcontrol); |
3140 | val = reg_val & mask; | |
3141 | ||
3142 | if (snd_soc_volsw_is_stereo(mc)) | |
3143 | rval = (reg_val >> width) & mask; | |
ce0fc93a | 3144 | } |
57295073 LPC |
3145 | mutex_unlock(&card->dapm_mutex); |
3146 | ||
01ad5e7d CYT |
3147 | if (ret) |
3148 | return ret; | |
3149 | ||
da602ab8 | 3150 | if (invert) |
57295073 LPC |
3151 | ucontrol->value.integer.value[0] = max - val; |
3152 | else | |
3153 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3154 | |
e7aa450f CYT |
3155 | if (snd_soc_volsw_is_stereo(mc)) { |
3156 | if (invert) | |
3157 | ucontrol->value.integer.value[1] = max - rval; | |
3158 | else | |
3159 | ucontrol->value.integer.value[1] = rval; | |
3160 | } | |
3161 | ||
ce0fc93a | 3162 | return ret; |
2b97eabc RP |
3163 | } |
3164 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3165 | ||
3166 | /** | |
3167 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3168 | * @kcontrol: mixer control | |
ac11a2b3 | 3169 | * @ucontrol: control element information |
2b97eabc RP |
3170 | * |
3171 | * Callback to set the value of a dapm mixer control. | |
3172 | * | |
3173 | * Returns 0 for success. | |
3174 | */ | |
3175 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3176 | struct snd_ctl_elem_value *ucontrol) | |
3177 | { | |
ce0fc93a LPC |
3178 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3179 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3180 | struct soc_mixer_control *mc = |
3181 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3182 | int reg = mc->reg; |
815ecf8d | 3183 | unsigned int shift = mc->shift; |
4eaa9819 | 3184 | int max = mc->max; |
e7aa450f CYT |
3185 | unsigned int width = fls(max); |
3186 | unsigned int mask = (1 << width) - 1; | |
815ecf8d | 3187 | unsigned int invert = mc->invert; |
e7aa450f CYT |
3188 | unsigned int val, rval = 0; |
3189 | int connect, rconnect = -1, change, reg_change = 0; | |
33d9245c | 3190 | struct snd_soc_dapm_update update = {}; |
52765976 | 3191 | int ret = 0; |
2b97eabc RP |
3192 | |
3193 | val = (ucontrol->value.integer.value[0] & mask); | |
8a720718 | 3194 | connect = !!val; |
2b97eabc RP |
3195 | |
3196 | if (invert) | |
a7a4ac86 | 3197 | val = max - val; |
2b97eabc | 3198 | |
e7aa450f CYT |
3199 | if (snd_soc_volsw_is_stereo(mc)) { |
3200 | rval = (ucontrol->value.integer.value[1] & mask); | |
3201 | rconnect = !!rval; | |
3202 | if (invert) | |
3203 | rval = max - rval; | |
3204 | } | |
3205 | ||
3cd04343 | 3206 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3207 | |
e7aa450f CYT |
3208 | /* This assumes field width < (bits in unsigned int / 2) */ |
3209 | if (width > sizeof(unsigned int) * 8 / 2) | |
3210 | dev_warn(dapm->dev, | |
3211 | "ASoC: control %s field width limit exceeded\n", | |
3212 | kcontrol->id.name); | |
3213 | change = dapm_kcontrol_set_value(kcontrol, val | (rval << width)); | |
97404f2e | 3214 | |
18626c7e | 3215 | if (reg != SND_SOC_NOPM) { |
18626c7e | 3216 | val = val << shift; |
e7aa450f CYT |
3217 | rval = rval << mc->rshift; |
3218 | ||
3219 | reg_change = soc_dapm_test_bits(dapm, reg, mask << shift, val); | |
18626c7e | 3220 | |
e7aa450f CYT |
3221 | if (snd_soc_volsw_is_stereo(mc)) |
3222 | reg_change |= soc_dapm_test_bits(dapm, mc->rreg, | |
3223 | mask << mc->rshift, | |
3224 | rval); | |
18626c7e JN |
3225 | } |
3226 | ||
3227 | if (change || reg_change) { | |
3228 | if (reg_change) { | |
e7aa450f CYT |
3229 | if (snd_soc_volsw_is_stereo(mc)) { |
3230 | update.has_second_set = true; | |
3231 | update.reg2 = mc->rreg; | |
3232 | update.mask2 = mask << mc->rshift; | |
3233 | update.val2 = rval; | |
3234 | } | |
18626c7e JN |
3235 | update.kcontrol = kcontrol; |
3236 | update.reg = reg; | |
e7aa450f | 3237 | update.mask = mask << shift; |
18626c7e JN |
3238 | update.val = val; |
3239 | card->update = &update; | |
249ce138 | 3240 | } |
18626c7e | 3241 | change |= reg_change; |
97404f2e | 3242 | |
e7aa450f CYT |
3243 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, |
3244 | rconnect); | |
fafd2176 | 3245 | |
564c6504 | 3246 | card->update = NULL; |
283375ce MB |
3247 | } |
3248 | ||
a73fb2df | 3249 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3250 | |
3251 | if (ret > 0) | |
3252 | soc_dpcm_runtime_update(card); | |
3253 | ||
56a67834 | 3254 | return change; |
2b97eabc RP |
3255 | } |
3256 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3257 | ||
3258 | /** | |
3259 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3260 | * @kcontrol: mixer control | |
ac11a2b3 | 3261 | * @ucontrol: control element information |
2b97eabc RP |
3262 | * |
3263 | * Callback to get the value of a dapm enumerated double mixer control. | |
3264 | * | |
3265 | * Returns 0 for success. | |
3266 | */ | |
3267 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3268 | struct snd_ctl_elem_value *ucontrol) | |
3269 | { | |
ce0fc93a | 3270 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3271 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3272 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3273 | unsigned int reg_val, val; |
52765976 | 3274 | |
561ed680 CK |
3275 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3276 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3277 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3278 | if (ret) { |
3279 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3280 | return ret; |
964a0b89 | 3281 | } |
69128316 | 3282 | } else { |
236aaa68 | 3283 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3284 | } |
561ed680 | 3285 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3286 | |
2e72f8e3 | 3287 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3288 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3289 | if (e->shift_l != e->shift_r) { |
3290 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3291 | val = snd_soc_enum_val_to_item(e, val); |
3292 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3293 | } |
3294 | ||
69128316 | 3295 | return 0; |
2e72f8e3 | 3296 | } |
2b97eabc | 3297 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3298 | |
3299 | /** | |
2b97eabc | 3300 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3301 | * @kcontrol: mixer control |
3302 | * @ucontrol: control element information | |
3303 | * | |
2b97eabc | 3304 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3305 | * |
3306 | * Returns 0 for success. | |
3307 | */ | |
2b97eabc | 3308 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3309 | struct snd_ctl_elem_value *ucontrol) |
3310 | { | |
ce0fc93a LPC |
3311 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3312 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3313 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3314 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3315 | unsigned int val, change, reg_change = 0; |
46f5822f | 3316 | unsigned int mask; |
33d9245c | 3317 | struct snd_soc_dapm_update update = {}; |
52765976 | 3318 | int ret = 0; |
2e72f8e3 | 3319 | |
3727b496 | 3320 | if (item[0] >= e->items) |
2e72f8e3 | 3321 | return -EINVAL; |
3727b496 LPC |
3322 | |
3323 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3324 | mask = e->mask << e->shift_l; |
3325 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3326 | if (item[1] > e->items) |
2e72f8e3 | 3327 | return -EINVAL; |
071133a2 | 3328 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; |
2e72f8e3 PU |
3329 | mask |= e->mask << e->shift_r; |
3330 | } | |
3331 | ||
3cd04343 | 3332 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3333 | |
561ed680 CK |
3334 | change = dapm_kcontrol_set_value(kcontrol, val); |
3335 | ||
236aaa68 | 3336 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3337 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3338 | |
561ed680 CK |
3339 | if (change || reg_change) { |
3340 | if (reg_change) { | |
236aaa68 LPC |
3341 | update.kcontrol = kcontrol; |
3342 | update.reg = e->reg; | |
3343 | update.mask = mask; | |
3344 | update.val = val; | |
3345 | card->update = &update; | |
3346 | } | |
561ed680 | 3347 | change |= reg_change; |
1642e3d4 | 3348 | |
3727b496 | 3349 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3350 | |
564c6504 | 3351 | card->update = NULL; |
fafd2176 | 3352 | } |
2e72f8e3 | 3353 | |
a73fb2df | 3354 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3355 | |
3356 | if (ret > 0) | |
3357 | soc_dpcm_runtime_update(card); | |
3358 | ||
97404f2e | 3359 | return change; |
2e72f8e3 | 3360 | } |
2b97eabc | 3361 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3362 | |
8b37dbd2 MB |
3363 | /** |
3364 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3365 | * | |
3366 | * @kcontrol: mixer control | |
3367 | * @uinfo: control element information | |
3368 | * | |
3369 | * Callback to provide information about a pin switch control. | |
3370 | */ | |
3371 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3372 | struct snd_ctl_elem_info *uinfo) | |
3373 | { | |
3374 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3375 | uinfo->count = 1; | |
3376 | uinfo->value.integer.min = 0; | |
3377 | uinfo->value.integer.max = 1; | |
3378 | ||
3379 | return 0; | |
3380 | } | |
3381 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3382 | ||
3383 | /** | |
3384 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3385 | * | |
3386 | * @kcontrol: mixer control | |
3387 | * @ucontrol: Value | |
3388 | */ | |
3389 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3390 | struct snd_ctl_elem_value *ucontrol) | |
3391 | { | |
48a8c394 | 3392 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3393 | const char *pin = (const char *)kcontrol->private_value; |
3394 | ||
3cd04343 | 3395 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3396 | |
3397 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3398 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3399 | |
a73fb2df | 3400 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3401 | |
3402 | return 0; | |
3403 | } | |
3404 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3405 | ||
3406 | /** | |
3407 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3408 | * | |
3409 | * @kcontrol: mixer control | |
3410 | * @ucontrol: Value | |
3411 | */ | |
3412 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3413 | struct snd_ctl_elem_value *ucontrol) | |
3414 | { | |
48a8c394 | 3415 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3416 | const char *pin = (const char *)kcontrol->private_value; |
3417 | ||
8b37dbd2 | 3418 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3419 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3420 | else |
48a8c394 | 3421 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3422 | |
a73fb2df | 3423 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3424 | return 0; |
3425 | } | |
3426 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3427 | ||
cc76e7de | 3428 | struct snd_soc_dapm_widget * |
5ba06fc9 | 3429 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
02aa78ab LG |
3430 | const struct snd_soc_dapm_widget *widget) |
3431 | { | |
3432 | struct snd_soc_dapm_widget *w; | |
3433 | ||
3434 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3435 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
37e1df8c LW |
3436 | /* Do not nag about probe deferrals */ |
3437 | if (IS_ERR(w)) { | |
3438 | int ret = PTR_ERR(w); | |
3439 | ||
3440 | if (ret != -EPROBE_DEFER) | |
3441 | dev_err(dapm->dev, | |
3442 | "ASoC: Failed to create DAPM control %s (%d)\n", | |
3443 | widget->name, ret); | |
3444 | goto out_unlock; | |
3445 | } | |
02aa78ab LG |
3446 | if (!w) |
3447 | dev_err(dapm->dev, | |
3448 | "ASoC: Failed to create DAPM control %s\n", | |
3449 | widget->name); | |
3450 | ||
37e1df8c | 3451 | out_unlock: |
02aa78ab LG |
3452 | mutex_unlock(&dapm->card->dapm_mutex); |
3453 | return w; | |
3454 | } | |
a5d5639f | 3455 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); |
02aa78ab LG |
3456 | |
3457 | struct snd_soc_dapm_widget * | |
3458 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3459 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3460 | { |
a3423b02 | 3461 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3462 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3463 | const char *prefix; |
62ea874a | 3464 | int ret; |
2b97eabc RP |
3465 | |
3466 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3467 | return NULL; |
2b97eabc | 3468 | |
62ea874a MB |
3469 | switch (w->id) { |
3470 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3471 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3472 | if (IS_ERR(w->regulator)) { | |
3473 | ret = PTR_ERR(w->regulator); | |
37e1df8c LW |
3474 | if (ret == -EPROBE_DEFER) |
3475 | return ERR_PTR(ret); | |
30a6a1a4 | 3476 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3477 | w->name, ret); |
5ba06fc9 | 3478 | return NULL; |
62ea874a | 3479 | } |
8784c77a | 3480 | |
de9ba98b | 3481 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3482 | ret = regulator_allow_bypass(w->regulator, true); |
3483 | if (ret != 0) | |
3484 | dev_warn(w->dapm->dev, | |
30686c35 | 3485 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3486 | w->name, ret); |
3487 | } | |
62ea874a | 3488 | break; |
5b2d15bb SK |
3489 | case snd_soc_dapm_pinctrl: |
3490 | w->pinctrl = devm_pinctrl_get(dapm->dev); | |
3491 | if (IS_ERR_OR_NULL(w->pinctrl)) { | |
3492 | ret = PTR_ERR(w->pinctrl); | |
3493 | if (ret == -EPROBE_DEFER) | |
3494 | return ERR_PTR(ret); | |
3495 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", | |
3496 | w->name, ret); | |
3497 | return NULL; | |
3498 | } | |
3499 | break; | |
d7e7eb91 | 3500 | case snd_soc_dapm_clock_supply: |
165961ef | 3501 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3502 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3503 | if (IS_ERR(w->clk)) { |
3504 | ret = PTR_ERR(w->clk); | |
37e1df8c LW |
3505 | if (ret == -EPROBE_DEFER) |
3506 | return ERR_PTR(ret); | |
30a6a1a4 | 3507 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3508 | w->name, ret); |
3509 | return NULL; | |
3510 | } | |
ec02995a MB |
3511 | #else |
3512 | return NULL; | |
3513 | #endif | |
d7e7eb91 | 3514 | break; |
62ea874a MB |
3515 | default: |
3516 | break; | |
3517 | } | |
2b97eabc | 3518 | |
94f99c87 | 3519 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3520 | if (prefix) |
94f99c87 | 3521 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3522 | else |
48068961 | 3523 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 JN |
3524 | if (w->name == NULL) { |
3525 | kfree(w); | |
5ba06fc9 | 3526 | return NULL; |
ead9b919 | 3527 | } |
ead9b919 | 3528 | |
7ca3a18b | 3529 | switch (w->id) { |
6dd98b0a | 3530 | case snd_soc_dapm_mic: |
a3423b02 | 3531 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3532 | w->power_check = dapm_generic_check_power; |
3533 | break; | |
86d75003 LPC |
3534 | case snd_soc_dapm_input: |
3535 | if (!dapm->card->fully_routed) | |
a3423b02 | 3536 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3537 | w->power_check = dapm_generic_check_power; |
3538 | break; | |
6dd98b0a LPC |
3539 | case snd_soc_dapm_spk: |
3540 | case snd_soc_dapm_hp: | |
a3423b02 | 3541 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3542 | w->power_check = dapm_generic_check_power; |
3543 | break; | |
86d75003 LPC |
3544 | case snd_soc_dapm_output: |
3545 | if (!dapm->card->fully_routed) | |
a3423b02 | 3546 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3547 | w->power_check = dapm_generic_check_power; |
3548 | break; | |
6dd98b0a LPC |
3549 | case snd_soc_dapm_vmid: |
3550 | case snd_soc_dapm_siggen: | |
a3423b02 | 3551 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3552 | w->power_check = dapm_always_on_check_power; |
3553 | break; | |
56b4437f VK |
3554 | case snd_soc_dapm_sink: |
3555 | w->is_ep = SND_SOC_DAPM_EP_SINK; | |
3556 | w->power_check = dapm_always_on_check_power; | |
3557 | break; | |
3558 | ||
6dd98b0a | 3559 | case snd_soc_dapm_mux: |
d714f97c | 3560 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3561 | case snd_soc_dapm_switch: |
3562 | case snd_soc_dapm_mixer: | |
3563 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3564 | case snd_soc_dapm_adc: |
3565 | case snd_soc_dapm_aif_out: | |
3566 | case snd_soc_dapm_dac: | |
3567 | case snd_soc_dapm_aif_in: | |
7ca3a18b MB |
3568 | case snd_soc_dapm_pga: |
3569 | case snd_soc_dapm_out_drv: | |
7ca3a18b | 3570 | case snd_soc_dapm_micbias: |
7ca3a18b | 3571 | case snd_soc_dapm_line: |
c74184ed | 3572 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3573 | case snd_soc_dapm_dai_out: |
3574 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3575 | w->power_check = dapm_generic_check_power; |
3576 | break; | |
3577 | case snd_soc_dapm_supply: | |
62ea874a | 3578 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 3579 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 3580 | case snd_soc_dapm_clock_supply: |
57295073 | 3581 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3582 | w->is_supply = 1; |
7ca3a18b MB |
3583 | w->power_check = dapm_supply_check_power; |
3584 | break; | |
3585 | default: | |
3586 | w->power_check = dapm_always_on_check_power; | |
3587 | break; | |
3588 | } | |
3589 | ||
ce6120cc | 3590 | w->dapm = dapm; |
2b97eabc | 3591 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3592 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3593 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3594 | |
a3423b02 LPC |
3595 | snd_soc_dapm_for_each_direction(dir) { |
3596 | INIT_LIST_HEAD(&w->edges[dir]); | |
3597 | w->endpoints[dir] = -1; | |
3598 | } | |
92a99ea4 | 3599 | |
c8046000 | 3600 | /* machine layer sets up unconnected pins and insertions */ |
2b97eabc | 3601 | w->connected = 1; |
5ba06fc9 | 3602 | return w; |
2b97eabc | 3603 | } |
2b97eabc | 3604 | |
4ba1327a MB |
3605 | /** |
3606 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3607 | * @dapm: DAPM context |
4ba1327a MB |
3608 | * @widget: widget array |
3609 | * @num: number of widgets | |
3610 | * | |
3611 | * Creates new DAPM controls based upon the templates. | |
3612 | * | |
3613 | * Returns 0 for success else error. | |
3614 | */ | |
ce6120cc | 3615 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3616 | const struct snd_soc_dapm_widget *widget, |
3617 | int num) | |
3618 | { | |
5ba06fc9 MB |
3619 | struct snd_soc_dapm_widget *w; |
3620 | int i; | |
60884c27 | 3621 | int ret = 0; |
4ba1327a | 3622 | |
a73fb2df | 3623 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3624 | for (i = 0; i < num; i++) { |
02aa78ab | 3625 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
37e1df8c LW |
3626 | if (IS_ERR(w)) { |
3627 | ret = PTR_ERR(w); | |
3628 | /* Do not nag about probe deferrals */ | |
3629 | if (ret == -EPROBE_DEFER) | |
3630 | break; | |
3631 | dev_err(dapm->dev, | |
3632 | "ASoC: Failed to create DAPM control %s (%d)\n", | |
3633 | widget->name, ret); | |
3634 | break; | |
3635 | } | |
5ba06fc9 | 3636 | if (!w) { |
f7d41ae8 | 3637 | dev_err(dapm->dev, |
5ba06fc9 MB |
3638 | "ASoC: Failed to create DAPM control %s\n", |
3639 | widget->name); | |
60884c27 DC |
3640 | ret = -ENOMEM; |
3641 | break; | |
b8b33cb5 | 3642 | } |
4ba1327a MB |
3643 | widget++; |
3644 | } | |
a73fb2df | 3645 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3646 | return ret; |
4ba1327a MB |
3647 | } |
3648 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3649 | ||
c74184ed MB |
3650 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3651 | struct snd_kcontrol *kcontrol, int event) | |
3652 | { | |
3653 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3654 | struct snd_soc_dai *source, *sink; | |
249dc495 | 3655 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 | 3656 | const struct snd_soc_pcm_stream *config = w->params + w->params_select; |
c74184ed | 3657 | struct snd_pcm_substream substream; |
9747cec2 | 3658 | struct snd_pcm_hw_params *params = NULL; |
8053f216 | 3659 | struct snd_pcm_runtime *runtime = NULL; |
3ba66feb | 3660 | unsigned int fmt; |
c74184ed MB |
3661 | int ret; |
3662 | ||
bf4edea8 | 3663 | if (WARN_ON(!config) || |
a3423b02 LPC |
3664 | WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || |
3665 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
bf4edea8 | 3666 | return -EINVAL; |
c74184ed MB |
3667 | |
3668 | /* We only support a single source and sink, pick the first */ | |
a3423b02 LPC |
3669 | source_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_OUT], |
3670 | struct snd_soc_dapm_path, | |
3671 | list_node[SND_SOC_DAPM_DIR_OUT]); | |
3672 | sink_p = list_first_entry(&w->edges[SND_SOC_DAPM_DIR_IN], | |
3673 | struct snd_soc_dapm_path, | |
3674 | list_node[SND_SOC_DAPM_DIR_IN]); | |
c74184ed MB |
3675 | |
3676 | source = source_p->source->priv; | |
3677 | sink = sink_p->sink->priv; | |
3678 | ||
3679 | /* Be a little careful as we don't want to overflow the mask array */ | |
3680 | if (config->formats) { | |
3681 | fmt = ffs(config->formats) - 1; | |
3682 | } else { | |
30a6a1a4 | 3683 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3684 | config->formats); |
3685 | fmt = 0; | |
3686 | } | |
3687 | ||
3688 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3689 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3690 | if (!params) { | |
3691 | ret = -ENOMEM; | |
3692 | goto out; | |
3693 | } | |
3694 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3695 | |
9747cec2 | 3696 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3697 | config->rate_min; |
9747cec2 | 3698 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3699 | config->rate_max; |
3700 | ||
9747cec2 | 3701 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3702 | = config->channels_min; |
9747cec2 | 3703 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3704 | = config->channels_max; |
3705 | ||
3706 | memset(&substream, 0, sizeof(substream)); | |
3707 | ||
8053f216 NC |
3708 | /* Allocate a dummy snd_pcm_runtime for startup() and other ops() */ |
3709 | runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); | |
3710 | if (!runtime) { | |
3711 | ret = -ENOMEM; | |
3712 | goto out; | |
3713 | } | |
3714 | substream.runtime = runtime; | |
249dc495 | 3715 | substream.private_data = rtd; |
8053f216 | 3716 | |
c74184ed MB |
3717 | switch (event) { |
3718 | case SND_SOC_DAPM_PRE_PMU: | |
93e6958a | 3719 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
9900a422 | 3720 | if (source->driver->ops->startup) { |
9b8ef9f6 JK |
3721 | ret = source->driver->ops->startup(&substream, source); |
3722 | if (ret < 0) { | |
3723 | dev_err(source->dev, | |
3724 | "ASoC: startup() failed: %d\n", ret); | |
3725 | goto out; | |
3726 | } | |
3727 | source->active++; | |
3728 | } | |
93e6958a BC |
3729 | ret = soc_dai_hw_params(&substream, params, source); |
3730 | if (ret < 0) | |
3731 | goto out; | |
c74184ed | 3732 | |
93e6958a | 3733 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
9900a422 | 3734 | if (sink->driver->ops->startup) { |
9b8ef9f6 JK |
3735 | ret = sink->driver->ops->startup(&substream, sink); |
3736 | if (ret < 0) { | |
3737 | dev_err(sink->dev, | |
3738 | "ASoC: startup() failed: %d\n", ret); | |
3739 | goto out; | |
3740 | } | |
3741 | sink->active++; | |
3742 | } | |
93e6958a BC |
3743 | ret = soc_dai_hw_params(&substream, params, sink); |
3744 | if (ret < 0) | |
3745 | goto out; | |
c74184ed MB |
3746 | break; |
3747 | ||
3748 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3749 | ret = snd_soc_dai_digital_mute(sink, 0, |
3750 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3751 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3752 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3753 | ret = 0; |
c74184ed MB |
3754 | break; |
3755 | ||
3756 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3757 | ret = snd_soc_dai_digital_mute(sink, 1, |
3758 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3759 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3760 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3761 | ret = 0; |
9b8ef9f6 JK |
3762 | |
3763 | source->active--; | |
9900a422 | 3764 | if (source->driver->ops->shutdown) { |
9b8ef9f6 JK |
3765 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; |
3766 | source->driver->ops->shutdown(&substream, source); | |
3767 | } | |
3768 | ||
3769 | sink->active--; | |
9900a422 | 3770 | if (sink->driver->ops->shutdown) { |
9b8ef9f6 JK |
3771 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; |
3772 | sink->driver->ops->shutdown(&substream, sink); | |
3773 | } | |
c74184ed MB |
3774 | break; |
3775 | ||
3776 | default: | |
a6ed0608 | 3777 | WARN(1, "Unknown event %d\n", event); |
75881df3 | 3778 | ret = -EINVAL; |
c74184ed MB |
3779 | } |
3780 | ||
9747cec2 | 3781 | out: |
8053f216 | 3782 | kfree(runtime); |
9747cec2 MB |
3783 | kfree(params); |
3784 | return ret; | |
c74184ed MB |
3785 | } |
3786 | ||
c6615082 NO |
3787 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3788 | struct snd_ctl_elem_value *ucontrol) | |
3789 | { | |
3790 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3791 | ||
741338f9 | 3792 | ucontrol->value.enumerated.item[0] = w->params_select; |
c6615082 NO |
3793 | |
3794 | return 0; | |
3795 | } | |
3796 | ||
3797 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3798 | struct snd_ctl_elem_value *ucontrol) | |
3799 | { | |
3800 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
3801 | ||
3802 | /* Can't change the config when widget is already powered */ | |
3803 | if (w->power) | |
3804 | return -EBUSY; | |
3805 | ||
741338f9 | 3806 | if (ucontrol->value.enumerated.item[0] == w->params_select) |
c6615082 NO |
3807 | return 0; |
3808 | ||
741338f9 | 3809 | if (ucontrol->value.enumerated.item[0] >= w->num_params) |
c6615082 NO |
3810 | return -EINVAL; |
3811 | ||
741338f9 | 3812 | w->params_select = ucontrol->value.enumerated.item[0]; |
c6615082 NO |
3813 | |
3814 | return 0; | |
3815 | } | |
3816 | ||
c42c5ac4 | 3817 | static void |
19ad683a | 3818 | snd_soc_dapm_free_kcontrol(struct snd_soc_card *card, |
3819 | unsigned long *private_value, | |
3820 | int num_params, | |
3821 | const char **w_param_text) | |
3822 | { | |
3823 | int count; | |
3824 | ||
3825 | devm_kfree(card->dev, (void *)*private_value); | |
3826 | for (count = 0 ; count < num_params; count++) | |
3827 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
3828 | devm_kfree(card->dev, w_param_text); | |
3829 | } | |
3830 | ||
3831 | static struct snd_kcontrol_new * | |
3832 | snd_soc_dapm_alloc_kcontrol(struct snd_soc_card *card, | |
3833 | char *link_name, | |
3834 | const struct snd_soc_pcm_stream *params, | |
3835 | int num_params, const char **w_param_text, | |
3836 | unsigned long *private_value) | |
c74184ed | 3837 | { |
c6615082 NO |
3838 | struct soc_enum w_param_enum[] = { |
3839 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
3840 | }; | |
3841 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
3842 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
3843 | snd_soc_dapm_dai_link_get, | |
3844 | snd_soc_dapm_dai_link_put), | |
3845 | }; | |
19ad683a | 3846 | struct snd_kcontrol_new *kcontrol_news; |
c6615082 | 3847 | const struct snd_soc_pcm_stream *config = params; |
19ad683a | 3848 | int count; |
c74184ed | 3849 | |
c6615082 NO |
3850 | for (count = 0 ; count < num_params; count++) { |
3851 | if (!config->stream_name) { | |
3852 | dev_warn(card->dapm.dev, | |
3853 | "ASoC: anonymous config %d for dai link %s\n", | |
3854 | count, link_name); | |
c6615082 | 3855 | w_param_text[count] = |
46172b6c CK |
3856 | devm_kasprintf(card->dev, GFP_KERNEL, |
3857 | "Anonymous Configuration %d", | |
3858 | count); | |
c6615082 NO |
3859 | } else { |
3860 | w_param_text[count] = devm_kmemdup(card->dev, | |
3861 | config->stream_name, | |
3862 | strlen(config->stream_name) + 1, | |
3863 | GFP_KERNEL); | |
c6615082 | 3864 | } |
19ad683a | 3865 | if (!w_param_text[count]) |
3866 | goto outfree_w_param; | |
c6615082 NO |
3867 | config++; |
3868 | } | |
19ad683a | 3869 | |
c6615082 NO |
3870 | w_param_enum[0].items = num_params; |
3871 | w_param_enum[0].texts = w_param_text; | |
c74184ed | 3872 | |
19ad683a | 3873 | *private_value = |
c6615082 NO |
3874 | (unsigned long) devm_kmemdup(card->dev, |
3875 | (void *)(kcontrol_dai_link[0].private_value), | |
3876 | sizeof(struct soc_enum), GFP_KERNEL); | |
19ad683a | 3877 | if (!*private_value) { |
c6615082 NO |
3878 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", |
3879 | link_name); | |
19ad683a | 3880 | goto outfree_w_param; |
c6615082 | 3881 | } |
19ad683a | 3882 | kcontrol_dai_link[0].private_value = *private_value; |
c6615082 | 3883 | /* duplicate kcontrol_dai_link on heap so that memory persists */ |
19ad683a | 3884 | kcontrol_news = devm_kmemdup(card->dev, &kcontrol_dai_link[0], |
c6615082 NO |
3885 | sizeof(struct snd_kcontrol_new), |
3886 | GFP_KERNEL); | |
19ad683a | 3887 | if (!kcontrol_news) { |
c6615082 NO |
3888 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", |
3889 | link_name); | |
19ad683a | 3890 | goto outfree_w_param; |
c6615082 | 3891 | } |
19ad683a | 3892 | return kcontrol_news; |
c74184ed | 3893 | |
19ad683a | 3894 | outfree_w_param: |
3895 | snd_soc_dapm_free_kcontrol(card, private_value, num_params, w_param_text); | |
3896 | return NULL; | |
3897 | } | |
3898 | ||
3899 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
249dc495 | 3900 | struct snd_soc_pcm_runtime *rtd, |
19ad683a | 3901 | const struct snd_soc_pcm_stream *params, |
3902 | unsigned int num_params, | |
3903 | struct snd_soc_dapm_widget *source, | |
3904 | struct snd_soc_dapm_widget *sink) | |
3905 | { | |
3906 | struct snd_soc_dapm_widget template; | |
3907 | struct snd_soc_dapm_widget *w; | |
3908 | const char **w_param_text; | |
3909 | unsigned long private_value; | |
3910 | char *link_name; | |
3911 | int ret; | |
3912 | ||
3913 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", | |
3914 | source->name, sink->name); | |
3915 | if (!link_name) | |
3916 | return -ENOMEM; | |
3917 | ||
3918 | memset(&template, 0, sizeof(template)); | |
3919 | template.reg = SND_SOC_NOPM; | |
3920 | template.id = snd_soc_dapm_dai_link; | |
3921 | template.name = link_name; | |
3922 | template.event = snd_soc_dai_link_event; | |
3923 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3924 | SND_SOC_DAPM_PRE_PMD; | |
3925 | template.kcontrol_news = NULL; | |
3926 | ||
3927 | /* allocate memory for control, only in case of multiple configs */ | |
3928 | if (num_params > 1) { | |
3929 | w_param_text = devm_kcalloc(card->dev, num_params, | |
3930 | sizeof(char *), GFP_KERNEL); | |
3931 | if (!w_param_text) { | |
3932 | ret = -ENOMEM; | |
3933 | goto param_fail; | |
3934 | } | |
c74184ed | 3935 | |
19ad683a | 3936 | template.num_kcontrols = 1; |
3937 | template.kcontrol_news = | |
3938 | snd_soc_dapm_alloc_kcontrol(card, | |
3939 | link_name, params, num_params, | |
3940 | w_param_text, &private_value); | |
3941 | if (!template.kcontrol_news) { | |
3942 | ret = -ENOMEM; | |
3943 | goto param_fail; | |
3944 | } | |
667ebc97 AB |
3945 | } else { |
3946 | w_param_text = NULL; | |
19ad683a | 3947 | } |
30a6a1a4 | 3948 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 3949 | |
02aa78ab | 3950 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
37e1df8c LW |
3951 | if (IS_ERR(w)) { |
3952 | ret = PTR_ERR(w); | |
3953 | /* Do not nag about probe deferrals */ | |
3954 | if (ret != -EPROBE_DEFER) | |
3955 | dev_err(card->dev, | |
3956 | "ASoC: Failed to create %s widget (%d)\n", | |
3957 | link_name, ret); | |
3958 | goto outfree_kcontrol_news; | |
3959 | } | |
c74184ed | 3960 | if (!w) { |
30a6a1a4 | 3961 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed | 3962 | link_name); |
c6615082 NO |
3963 | ret = -ENOMEM; |
3964 | goto outfree_kcontrol_news; | |
c74184ed MB |
3965 | } |
3966 | ||
3967 | w->params = params; | |
c6615082 | 3968 | w->num_params = num_params; |
249dc495 | 3969 | w->priv = rtd; |
c74184ed | 3970 | |
fe83897f LPC |
3971 | ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); |
3972 | if (ret) | |
c6615082 | 3973 | goto outfree_w; |
fe83897f | 3974 | return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); |
c6615082 NO |
3975 | |
3976 | outfree_w: | |
3977 | devm_kfree(card->dev, w); | |
3978 | outfree_kcontrol_news: | |
3979 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
19ad683a | 3980 | snd_soc_dapm_free_kcontrol(card, &private_value, num_params, w_param_text); |
3981 | param_fail: | |
c6615082 | 3982 | devm_kfree(card->dev, link_name); |
c6615082 | 3983 | return ret; |
c74184ed MB |
3984 | } |
3985 | ||
888df395 MB |
3986 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3987 | struct snd_soc_dai *dai) | |
2b97eabc | 3988 | { |
888df395 | 3989 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3990 | struct snd_soc_dapm_widget *w; |
3991 | ||
888df395 MB |
3992 | WARN_ON(dapm->dev != dai->dev); |
3993 | ||
3994 | memset(&template, 0, sizeof(template)); | |
3995 | template.reg = SND_SOC_NOPM; | |
3996 | ||
3997 | if (dai->driver->playback.stream_name) { | |
4616274d | 3998 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3999 | template.name = dai->driver->playback.stream_name; |
4000 | template.sname = dai->driver->playback.stream_name; | |
4001 | ||
30a6a1a4 | 4002 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
4003 | template.name); |
4004 | ||
02aa78ab | 4005 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
639467c8 LW |
4006 | if (IS_ERR(w)) { |
4007 | int ret = PTR_ERR(w); | |
4008 | ||
4009 | /* Do not nag about probe deferrals */ | |
4010 | if (ret != -EPROBE_DEFER) | |
4011 | dev_err(dapm->dev, | |
4012 | "ASoC: Failed to create %s widget (%d)\n", | |
4013 | dai->driver->playback.stream_name, ret); | |
4014 | return ret; | |
4015 | } | |
888df395 | 4016 | if (!w) { |
30a6a1a4 | 4017 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 4018 | dai->driver->playback.stream_name); |
298402a3 | 4019 | return -ENOMEM; |
888df395 MB |
4020 | } |
4021 | ||
4022 | w->priv = dai; | |
4023 | dai->playback_widget = w; | |
4024 | } | |
4025 | ||
4026 | if (dai->driver->capture.stream_name) { | |
4616274d | 4027 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
4028 | template.name = dai->driver->capture.stream_name; |
4029 | template.sname = dai->driver->capture.stream_name; | |
4030 | ||
30a6a1a4 | 4031 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
4032 | template.name); |
4033 | ||
02aa78ab | 4034 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
639467c8 LW |
4035 | if (IS_ERR(w)) { |
4036 | int ret = PTR_ERR(w); | |
4037 | ||
4038 | /* Do not nag about probe deferrals */ | |
4039 | if (ret != -EPROBE_DEFER) | |
4040 | dev_err(dapm->dev, | |
4041 | "ASoC: Failed to create %s widget (%d)\n", | |
4042 | dai->driver->playback.stream_name, ret); | |
4043 | return ret; | |
4044 | } | |
888df395 | 4045 | if (!w) { |
30a6a1a4 | 4046 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 | 4047 | dai->driver->capture.stream_name); |
298402a3 | 4048 | return -ENOMEM; |
888df395 MB |
4049 | } |
4050 | ||
4051 | w->priv = dai; | |
4052 | dai->capture_widget = w; | |
4053 | } | |
4054 | ||
4055 | return 0; | |
4056 | } | |
4057 | ||
4058 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
4059 | { | |
4060 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 4061 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 4062 | struct snd_soc_dai *dai; |
888df395 MB |
4063 | |
4064 | /* For each DAI widget... */ | |
4065 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
4066 | switch (dai_w->id) { |
4067 | case snd_soc_dapm_dai_in: | |
4068 | case snd_soc_dapm_dai_out: | |
4069 | break; | |
4070 | default: | |
2b97eabc | 4071 | continue; |
4616274d | 4072 | } |
888df395 | 4073 | |
e01b4f62 LG |
4074 | /* let users know there is no DAI to link */ |
4075 | if (!dai_w->priv) { | |
4076 | dev_dbg(card->dev, "dai widget %s has no DAI\n", | |
4077 | dai_w->name); | |
4078 | continue; | |
4079 | } | |
4080 | ||
888df395 MB |
4081 | dai = dai_w->priv; |
4082 | ||
4083 | /* ...find all widgets with the same stream and link them */ | |
4084 | list_for_each_entry(w, &card->widgets, list) { | |
4085 | if (w->dapm != dai_w->dapm) | |
4086 | continue; | |
4087 | ||
4616274d MB |
4088 | switch (w->id) { |
4089 | case snd_soc_dapm_dai_in: | |
4090 | case snd_soc_dapm_dai_out: | |
888df395 | 4091 | continue; |
4616274d MB |
4092 | default: |
4093 | break; | |
4094 | } | |
888df395 | 4095 | |
a798c24a | 4096 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
4097 | continue; |
4098 | ||
0f9bd7b1 LPC |
4099 | if (dai_w->id == snd_soc_dapm_dai_in) { |
4100 | src = dai_w; | |
4101 | sink = w; | |
4102 | } else { | |
4103 | src = w; | |
4104 | sink = dai_w; | |
2b97eabc | 4105 | } |
0f9bd7b1 LPC |
4106 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
4107 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
4108 | } |
4109 | } | |
2b97eabc | 4110 | |
888df395 MB |
4111 | return 0; |
4112 | } | |
64a648c2 | 4113 | |
44ba2641 BC |
4114 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
4115 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 4116 | { |
44ba2641 | 4117 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
9887c20b | 4118 | struct snd_soc_dapm_widget *sink, *source; |
b893ea5f LG |
4119 | int i; |
4120 | ||
44ba2641 BC |
4121 | for (i = 0; i < rtd->num_codecs; i++) { |
4122 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
b893ea5f | 4123 | |
b893ea5f LG |
4124 | /* connect BE DAI playback if widgets are valid */ |
4125 | if (codec_dai->playback_widget && cpu_dai->playback_widget) { | |
9887c20b LPC |
4126 | source = cpu_dai->playback_widget; |
4127 | sink = codec_dai->playback_widget; | |
b893ea5f | 4128 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
4129 | cpu_dai->component->name, source->name, |
4130 | codec_dai->component->name, sink->name); | |
b893ea5f | 4131 | |
9887c20b LPC |
4132 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
4133 | NULL, NULL); | |
b893ea5f LG |
4134 | } |
4135 | ||
4136 | /* connect BE DAI capture if widgets are valid */ | |
4137 | if (codec_dai->capture_widget && cpu_dai->capture_widget) { | |
9887c20b LPC |
4138 | source = codec_dai->capture_widget; |
4139 | sink = cpu_dai->capture_widget; | |
b893ea5f | 4140 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
f4333203 LPC |
4141 | codec_dai->component->name, source->name, |
4142 | cpu_dai->component->name, sink->name); | |
b893ea5f | 4143 | |
9887c20b LPC |
4144 | snd_soc_dapm_add_path(&card->dapm, source, sink, |
4145 | NULL, NULL); | |
b893ea5f | 4146 | } |
b893ea5f LG |
4147 | } |
4148 | } | |
4149 | ||
c471fdd1 | 4150 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 4151 | int event) |
2b97eabc | 4152 | { |
c471fdd1 | 4153 | struct snd_soc_dapm_widget *w; |
a3423b02 | 4154 | unsigned int ep; |
7bd3a6f3 | 4155 | |
c471fdd1 LPC |
4156 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
4157 | w = dai->playback_widget; | |
4158 | else | |
4159 | w = dai->capture_widget; | |
fe360685 | 4160 | |
c471fdd1 LPC |
4161 | if (w) { |
4162 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 4163 | |
a3423b02 LPC |
4164 | if (w->id == snd_soc_dapm_dai_in) { |
4165 | ep = SND_SOC_DAPM_EP_SOURCE; | |
4166 | dapm_widget_invalidate_input_paths(w); | |
4167 | } else { | |
4168 | ep = SND_SOC_DAPM_EP_SINK; | |
4169 | dapm_widget_invalidate_output_paths(w); | |
4170 | } | |
4171 | ||
d9b0951b LG |
4172 | switch (event) { |
4173 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 4174 | w->active = 1; |
a3423b02 | 4175 | w->is_ep = ep; |
d9b0951b LG |
4176 | break; |
4177 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 4178 | w->active = 0; |
a3423b02 | 4179 | w->is_ep = 0; |
d9b0951b LG |
4180 | break; |
4181 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
4182 | case SND_SOC_DAPM_STREAM_RESUME: | |
4183 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
4184 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
4185 | break; | |
4186 | } | |
4187 | } | |
c471fdd1 | 4188 | } |
d9b0951b | 4189 | |
44ba2641 BC |
4190 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
4191 | { | |
1a497983 | 4192 | struct snd_soc_pcm_runtime *rtd; |
44ba2641 BC |
4193 | |
4194 | /* for each BE DAI link... */ | |
1a497983 | 4195 | list_for_each_entry(rtd, &card->rtd_list, list) { |
44ba2641 BC |
4196 | /* |
4197 | * dynamic FE links have no fixed DAI mapping. | |
4198 | * CODEC<->CODEC links have no direct connection. | |
4199 | */ | |
4200 | if (rtd->dai_link->dynamic || rtd->dai_link->params) | |
4201 | continue; | |
4202 | ||
4203 | dapm_connect_dai_link_widgets(card, rtd); | |
4204 | } | |
4205 | } | |
4206 | ||
c471fdd1 LPC |
4207 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4208 | int event) | |
4209 | { | |
44ba2641 BC |
4210 | int i; |
4211 | ||
c471fdd1 | 4212 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
44ba2641 BC |
4213 | for (i = 0; i < rtd->num_codecs; i++) |
4214 | soc_dapm_dai_stream_event(rtd->codec_dais[i], stream, event); | |
2b97eabc | 4215 | |
95dd5cd6 | 4216 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
4217 | } |
4218 | ||
4219 | /** | |
4220 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
4221 | * @rtd: PCM runtime data | |
4222 | * @stream: stream name | |
4223 | * @event: stream event | |
4224 | * | |
4225 | * Sends a stream event to the dapm core. The core then makes any | |
4226 | * necessary widget power changes. | |
4227 | * | |
4228 | * Returns 0 for success else error. | |
4229 | */ | |
d9b0951b LG |
4230 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4231 | int event) | |
ce6120cc | 4232 | { |
a73fb2df | 4233 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 4234 | |
3cd04343 | 4235 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 4236 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 4237 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 4238 | } |
2b97eabc | 4239 | |
11391100 CK |
4240 | /** |
4241 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
4242 | * @dapm: DAPM context | |
4243 | * @pin: pin name | |
4244 | * | |
4245 | * Enables input/output pin and its parents or children widgets iff there is | |
4246 | * a valid audio route and active audio stream. | |
4247 | * | |
4248 | * Requires external locking. | |
4249 | * | |
4250 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4251 | * do any widget power switching. | |
4252 | */ | |
4253 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4254 | const char *pin) | |
4255 | { | |
4256 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
4257 | } | |
4258 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
4259 | ||
2b97eabc | 4260 | /** |
a5302181 | 4261 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 4262 | * @dapm: DAPM context |
a5302181 | 4263 | * @pin: pin name |
2b97eabc | 4264 | * |
74b8f955 | 4265 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 4266 | * a valid audio route and active audio stream. |
11391100 | 4267 | * |
a5302181 LG |
4268 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4269 | * do any widget power switching. | |
2b97eabc | 4270 | */ |
ce6120cc | 4271 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 4272 | { |
11391100 CK |
4273 | int ret; |
4274 | ||
4275 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4276 | ||
4277 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
4278 | ||
4279 | mutex_unlock(&dapm->card->dapm_mutex); | |
4280 | ||
4281 | return ret; | |
a5302181 LG |
4282 | } |
4283 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 4284 | |
da34183e | 4285 | /** |
11391100 | 4286 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4287 | * @dapm: DAPM context |
da34183e MB |
4288 | * @pin: pin name |
4289 | * | |
4290 | * Enables input/output pin regardless of any other state. This is | |
4291 | * intended for use with microphone bias supplies used in microphone | |
4292 | * jack detection. | |
4293 | * | |
11391100 CK |
4294 | * Requires external locking. |
4295 | * | |
da34183e MB |
4296 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4297 | * do any widget power switching. | |
4298 | */ | |
11391100 CK |
4299 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4300 | const char *pin) | |
da34183e | 4301 | { |
91a5fca4 | 4302 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4303 | |
91a5fca4 | 4304 | if (!w) { |
30a6a1a4 | 4305 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4306 | return -EINVAL; |
0d86733c MB |
4307 | } |
4308 | ||
30a6a1a4 | 4309 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4310 | if (!w->connected) { |
4311 | /* | |
4312 | * w->force does not affect the number of input or output paths, | |
4313 | * so we only have to recheck if w->connected is changed | |
4314 | */ | |
4315 | dapm_widget_invalidate_input_paths(w); | |
4316 | dapm_widget_invalidate_output_paths(w); | |
4317 | w->connected = 1; | |
4318 | } | |
91a5fca4 | 4319 | w->force = 1; |
75c1f891 | 4320 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4321 | |
91a5fca4 | 4322 | return 0; |
da34183e | 4323 | } |
11391100 CK |
4324 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4325 | ||
4326 | /** | |
4327 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4328 | * @dapm: DAPM context | |
4329 | * @pin: pin name | |
4330 | * | |
4331 | * Enables input/output pin regardless of any other state. This is | |
4332 | * intended for use with microphone bias supplies used in microphone | |
4333 | * jack detection. | |
4334 | * | |
4335 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4336 | * do any widget power switching. | |
4337 | */ | |
4338 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4339 | const char *pin) | |
4340 | { | |
4341 | int ret; | |
4342 | ||
4343 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4344 | ||
4345 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4346 | ||
4347 | mutex_unlock(&dapm->card->dapm_mutex); | |
4348 | ||
4349 | return ret; | |
4350 | } | |
da34183e MB |
4351 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4352 | ||
11391100 CK |
4353 | /** |
4354 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4355 | * @dapm: DAPM context | |
4356 | * @pin: pin name | |
4357 | * | |
4358 | * Disables input/output pin and its parents or children widgets. | |
4359 | * | |
4360 | * Requires external locking. | |
4361 | * | |
4362 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4363 | * do any widget power switching. | |
4364 | */ | |
4365 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4366 | const char *pin) | |
4367 | { | |
4368 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4369 | } | |
4370 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4371 | ||
a5302181 LG |
4372 | /** |
4373 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4374 | * @dapm: DAPM context |
a5302181 LG |
4375 | * @pin: pin name |
4376 | * | |
74b8f955 | 4377 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4378 | * |
a5302181 LG |
4379 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4380 | * do any widget power switching. | |
4381 | */ | |
ce6120cc LG |
4382 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4383 | const char *pin) | |
a5302181 | 4384 | { |
11391100 CK |
4385 | int ret; |
4386 | ||
4387 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4388 | ||
4389 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4390 | ||
4391 | mutex_unlock(&dapm->card->dapm_mutex); | |
4392 | ||
4393 | return ret; | |
2b97eabc | 4394 | } |
a5302181 | 4395 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4396 | |
11391100 CK |
4397 | /** |
4398 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4399 | * @dapm: DAPM context | |
4400 | * @pin: pin name | |
4401 | * | |
4402 | * Marks the specified pin as being not connected, disabling it along | |
4403 | * any parent or child widgets. At present this is identical to | |
4404 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4405 | * additional things such as disabling controls which only affect | |
4406 | * paths through the pin. | |
4407 | * | |
4408 | * Requires external locking. | |
4409 | * | |
4410 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4411 | * do any widget power switching. | |
4412 | */ | |
4413 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4414 | const char *pin) | |
4415 | { | |
4416 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4417 | } | |
4418 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4419 | ||
5817b52a MB |
4420 | /** |
4421 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4422 | * @dapm: DAPM context |
5817b52a MB |
4423 | * @pin: pin name |
4424 | * | |
4425 | * Marks the specified pin as being not connected, disabling it along | |
4426 | * any parent or child widgets. At present this is identical to | |
4427 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4428 | * additional things such as disabling controls which only affect | |
4429 | * paths through the pin. | |
4430 | * | |
4431 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4432 | * do any widget power switching. | |
4433 | */ | |
ce6120cc | 4434 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4435 | { |
11391100 CK |
4436 | int ret; |
4437 | ||
4438 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4439 | ||
4440 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4441 | ||
4442 | mutex_unlock(&dapm->card->dapm_mutex); | |
4443 | ||
4444 | return ret; | |
5817b52a MB |
4445 | } |
4446 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4447 | ||
eeec12bf | 4448 | /** |
a5302181 | 4449 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4450 | * @dapm: DAPM context |
a5302181 | 4451 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4452 | * |
a5302181 | 4453 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4454 | * |
a5302181 | 4455 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4456 | */ |
ce6120cc LG |
4457 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4458 | const char *pin) | |
eeec12bf | 4459 | { |
91a5fca4 | 4460 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4461 | |
91a5fca4 LPC |
4462 | if (w) |
4463 | return w->connected; | |
a68b38ad | 4464 | |
eeec12bf GG |
4465 | return 0; |
4466 | } | |
a5302181 | 4467 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4468 | |
1547aba9 MB |
4469 | /** |
4470 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4471 | * @dapm: DAPM context |
1547aba9 MB |
4472 | * @pin: audio signal pin endpoint (or start point) |
4473 | * | |
4474 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4475 | * system is disabled a path between two endpoints flagged as ignoring | |
4476 | * suspend will not be disabled. The path must already be enabled via | |
4477 | * normal means at suspend time, it will not be turned on if it was not | |
4478 | * already enabled. | |
4479 | */ | |
ce6120cc LG |
4480 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4481 | const char *pin) | |
1547aba9 | 4482 | { |
91a5fca4 | 4483 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4484 | |
91a5fca4 | 4485 | if (!w) { |
30a6a1a4 | 4486 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4487 | return -EINVAL; |
1547aba9 MB |
4488 | } |
4489 | ||
91a5fca4 LPC |
4490 | w->ignore_suspend = 1; |
4491 | ||
4492 | return 0; | |
1547aba9 MB |
4493 | } |
4494 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4495 | ||
2b97eabc RP |
4496 | /** |
4497 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4498 | * @dapm: DAPM context |
2b97eabc RP |
4499 | * |
4500 | * Free all dapm widgets and resources. | |
4501 | */ | |
ce6120cc | 4502 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4503 | { |
6c45e126 | 4504 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4505 | dapm_free_widgets(dapm); |
7be31be8 | 4506 | list_del(&dapm->list); |
2b97eabc RP |
4507 | } |
4508 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4509 | ||
57996358 | 4510 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4511 | { |
01005a72 | 4512 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4513 | struct snd_soc_dapm_widget *w; |
4514 | LIST_HEAD(down_list); | |
4515 | int powerdown = 0; | |
4516 | ||
01005a72 LG |
4517 | mutex_lock(&card->dapm_mutex); |
4518 | ||
97c866de JN |
4519 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4520 | if (w->dapm != dapm) | |
4521 | continue; | |
51737470 | 4522 | if (w->power) { |
828a842f | 4523 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4524 | w->power = 0; |
51737470 MB |
4525 | powerdown = 1; |
4526 | } | |
4527 | } | |
4528 | ||
4529 | /* If there were no widgets to power down we're already in | |
4530 | * standby. | |
4531 | */ | |
4532 | if (powerdown) { | |
7679e42e MB |
4533 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4534 | snd_soc_dapm_set_bias_level(dapm, | |
4535 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4536 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4537 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4538 | snd_soc_dapm_set_bias_level(dapm, | |
4539 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4540 | } |
01005a72 LG |
4541 | |
4542 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4543 | } |
4544 | ||
4545 | /* | |
4546 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4547 | */ | |
4548 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4549 | { | |
57996358 | 4550 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4551 | |
57996358 | 4552 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4553 | if (dapm != &card->dapm) { |
4554 | soc_dapm_shutdown_dapm(dapm); | |
4555 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4556 | snd_soc_dapm_set_bias_level(dapm, | |
4557 | SND_SOC_BIAS_OFF); | |
4558 | } | |
ce6120cc | 4559 | } |
17282ba4 XX |
4560 | |
4561 | soc_dapm_shutdown_dapm(&card->dapm); | |
4562 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4563 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4564 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4565 | } |
4566 | ||
2b97eabc | 4567 | /* Module information */ |
d331124d | 4568 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4569 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4570 | MODULE_LICENSE("GPL"); |