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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> | |
2b97eabc | 21 | #include <linux/init.h> |
9d0624a7 | 22 | #include <linux/async.h> |
2b97eabc RP |
23 | #include <linux/delay.h> |
24 | #include <linux/pm.h> | |
25 | #include <linux/bitops.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/jiffies.h> | |
20496ff3 | 28 | #include <linux/debugfs.h> |
f1aac484 | 29 | #include <linux/pm_runtime.h> |
62ea874a | 30 | #include <linux/regulator/consumer.h> |
5b2d15bb | 31 | #include <linux/pinctrl/consumer.h> |
d7e7eb91 | 32 | #include <linux/clk.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
2b97eabc RP |
34 | #include <sound/core.h> |
35 | #include <sound/pcm.h> | |
36 | #include <sound/pcm_params.h> | |
ce6120cc | 37 | #include <sound/soc.h> |
2b97eabc RP |
38 | #include <sound/initval.h> |
39 | ||
84e90930 MB |
40 | #include <trace/events/asoc.h> |
41 | ||
de02d078 MB |
42 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
43 | ||
a3423b02 LPC |
44 | #define SND_SOC_DAPM_DIR_REVERSE(x) ((x == SND_SOC_DAPM_DIR_IN) ? \ |
45 | SND_SOC_DAPM_DIR_OUT : SND_SOC_DAPM_DIR_IN) | |
46 | ||
47 | #define snd_soc_dapm_for_each_direction(dir) \ | |
48 | for ((dir) = SND_SOC_DAPM_DIR_IN; (dir) <= SND_SOC_DAPM_DIR_OUT; \ | |
49 | (dir)++) | |
50 | ||
57295073 LPC |
51 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
52 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
53 | const char *control, | |
54 | int (*connected)(struct snd_soc_dapm_widget *source, | |
55 | struct snd_soc_dapm_widget *sink)); | |
5353f65b | 56 | |
cc76e7de | 57 | struct snd_soc_dapm_widget * |
57295073 LPC |
58 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
59 | const struct snd_soc_dapm_widget *widget); | |
60 | ||
02aa78ab LG |
61 | struct snd_soc_dapm_widget * |
62 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
57295073 LPC |
63 | const struct snd_soc_dapm_widget *widget); |
64 | ||
2b97eabc RP |
65 | /* dapm power sequences - make this per codec in the future */ |
66 | static int dapm_up_seq[] = { | |
f13d4b5f PLB |
67 | [snd_soc_dapm_pre] = 1, |
68 | [snd_soc_dapm_regulator_supply] = 2, | |
69 | [snd_soc_dapm_pinctrl] = 2, | |
70 | [snd_soc_dapm_clock_supply] = 2, | |
71 | [snd_soc_dapm_supply] = 3, | |
72 | [snd_soc_dapm_micbias] = 4, | |
73 | [snd_soc_dapm_vmid] = 4, | |
74 | [snd_soc_dapm_dai_link] = 3, | |
75 | [snd_soc_dapm_dai_in] = 5, | |
76 | [snd_soc_dapm_dai_out] = 5, | |
77 | [snd_soc_dapm_aif_in] = 5, | |
78 | [snd_soc_dapm_aif_out] = 5, | |
79 | [snd_soc_dapm_mic] = 6, | |
80 | [snd_soc_dapm_siggen] = 6, | |
81 | [snd_soc_dapm_input] = 6, | |
82 | [snd_soc_dapm_output] = 6, | |
83 | [snd_soc_dapm_mux] = 7, | |
84 | [snd_soc_dapm_demux] = 7, | |
85 | [snd_soc_dapm_dac] = 8, | |
86 | [snd_soc_dapm_switch] = 9, | |
87 | [snd_soc_dapm_mixer] = 9, | |
88 | [snd_soc_dapm_mixer_named_ctl] = 9, | |
89 | [snd_soc_dapm_pga] = 10, | |
90 | [snd_soc_dapm_buffer] = 10, | |
91 | [snd_soc_dapm_scheduler] = 10, | |
92 | [snd_soc_dapm_effect] = 10, | |
93 | [snd_soc_dapm_src] = 10, | |
94 | [snd_soc_dapm_asrc] = 10, | |
95 | [snd_soc_dapm_encoder] = 10, | |
96 | [snd_soc_dapm_decoder] = 10, | |
97 | [snd_soc_dapm_adc] = 11, | |
98 | [snd_soc_dapm_out_drv] = 12, | |
99 | [snd_soc_dapm_hp] = 12, | |
100 | [snd_soc_dapm_spk] = 12, | |
101 | [snd_soc_dapm_line] = 12, | |
102 | [snd_soc_dapm_sink] = 12, | |
103 | [snd_soc_dapm_kcontrol] = 13, | |
104 | [snd_soc_dapm_post] = 14, | |
2b97eabc | 105 | }; |
ca9c1aae | 106 | |
2b97eabc | 107 | static int dapm_down_seq[] = { |
f13d4b5f PLB |
108 | [snd_soc_dapm_pre] = 1, |
109 | [snd_soc_dapm_kcontrol] = 2, | |
110 | [snd_soc_dapm_adc] = 3, | |
111 | [snd_soc_dapm_hp] = 4, | |
112 | [snd_soc_dapm_spk] = 4, | |
113 | [snd_soc_dapm_line] = 4, | |
114 | [snd_soc_dapm_out_drv] = 4, | |
115 | [snd_soc_dapm_sink] = 4, | |
116 | [snd_soc_dapm_pga] = 5, | |
117 | [snd_soc_dapm_buffer] = 5, | |
118 | [snd_soc_dapm_scheduler] = 5, | |
119 | [snd_soc_dapm_effect] = 5, | |
120 | [snd_soc_dapm_src] = 5, | |
121 | [snd_soc_dapm_asrc] = 5, | |
122 | [snd_soc_dapm_encoder] = 5, | |
123 | [snd_soc_dapm_decoder] = 5, | |
124 | [snd_soc_dapm_switch] = 6, | |
125 | [snd_soc_dapm_mixer_named_ctl] = 6, | |
126 | [snd_soc_dapm_mixer] = 6, | |
127 | [snd_soc_dapm_dac] = 7, | |
128 | [snd_soc_dapm_mic] = 8, | |
129 | [snd_soc_dapm_siggen] = 8, | |
130 | [snd_soc_dapm_input] = 8, | |
131 | [snd_soc_dapm_output] = 8, | |
132 | [snd_soc_dapm_micbias] = 9, | |
133 | [snd_soc_dapm_vmid] = 9, | |
134 | [snd_soc_dapm_mux] = 10, | |
135 | [snd_soc_dapm_demux] = 10, | |
136 | [snd_soc_dapm_aif_in] = 11, | |
137 | [snd_soc_dapm_aif_out] = 11, | |
138 | [snd_soc_dapm_dai_in] = 11, | |
139 | [snd_soc_dapm_dai_out] = 11, | |
140 | [snd_soc_dapm_dai_link] = 12, | |
141 | [snd_soc_dapm_supply] = 13, | |
142 | [snd_soc_dapm_clock_supply] = 14, | |
143 | [snd_soc_dapm_pinctrl] = 14, | |
144 | [snd_soc_dapm_regulator_supply] = 14, | |
145 | [snd_soc_dapm_post] = 15, | |
2b97eabc RP |
146 | }; |
147 | ||
f9fa2b18 MB |
148 | static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) |
149 | { | |
150 | if (dapm->card && dapm->card->instantiated) | |
151 | lockdep_assert_held(&dapm->card->dapm_mutex); | |
152 | } | |
153 | ||
12ef193d | 154 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
155 | { |
156 | if (pop_time) | |
157 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
158 | } | |
159 | ||
595d2f74 | 160 | __printf(3, 4) |
fd8d3bc0 | 161 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
162 | { |
163 | va_list args; | |
fd8d3bc0 | 164 | char *buf; |
15e4c72f | 165 | |
fd8d3bc0 JN |
166 | if (!pop_time) |
167 | return; | |
15e4c72f | 168 | |
fd8d3bc0 JN |
169 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
170 | if (buf == NULL) | |
171 | return; | |
15e4c72f | 172 | |
fd8d3bc0 JN |
173 | va_start(args, fmt); |
174 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 175 | dev_info(dev, "%s", buf); |
15e4c72f | 176 | va_end(args); |
fd8d3bc0 JN |
177 | |
178 | kfree(buf); | |
15e4c72f MB |
179 | } |
180 | ||
db432b41 MB |
181 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
182 | { | |
183 | return !list_empty(&w->dirty); | |
184 | } | |
185 | ||
492c0a18 | 186 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 187 | { |
f9fa2b18 MB |
188 | dapm_assert_locked(w->dapm); |
189 | ||
75c1f891 MB |
190 | if (!dapm_dirty_widget(w)) { |
191 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
192 | w->name, reason); | |
db432b41 | 193 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 194 | } |
db432b41 MB |
195 | } |
196 | ||
92a99ea4 | 197 | /* |
a3423b02 LPC |
198 | * Common implementation for dapm_widget_invalidate_input_paths() and |
199 | * dapm_widget_invalidate_output_paths(). The function is inlined since the | |
200 | * combined size of the two specialized functions is only marginally larger then | |
201 | * the size of the generic function and at the same time the fast path of the | |
202 | * specialized functions is significantly smaller than the generic function. | |
92a99ea4 | 203 | */ |
a3423b02 LPC |
204 | static __always_inline void dapm_widget_invalidate_paths( |
205 | struct snd_soc_dapm_widget *w, enum snd_soc_dapm_direction dir) | |
92a99ea4 | 206 | { |
a3423b02 LPC |
207 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
208 | struct snd_soc_dapm_widget *node; | |
92a99ea4 LPC |
209 | struct snd_soc_dapm_path *p; |
210 | LIST_HEAD(list); | |
211 | ||
212 | dapm_assert_locked(w->dapm); | |
213 | ||
a3423b02 | 214 | if (w->endpoints[dir] == -1) |
92a99ea4 LPC |
215 | return; |
216 | ||
92a99ea4 | 217 | list_add_tail(&w->work_list, &list); |
a3423b02 | 218 | w->endpoints[dir] = -1; |
92a99ea4 LPC |
219 | |
220 | list_for_each_entry(w, &list, work_list) { | |
a3423b02 | 221 | snd_soc_dapm_widget_for_each_path(w, dir, p) { |
92a99ea4 LPC |
222 | if (p->is_supply || p->weak || !p->connect) |
223 | continue; | |
a3423b02 LPC |
224 | node = p->node[rdir]; |
225 | if (node->endpoints[dir] != -1) { | |
226 | node->endpoints[dir] = -1; | |
227 | list_add_tail(&node->work_list, &list); | |
92a99ea4 LPC |
228 | } |
229 | } | |
230 | } | |
231 | } | |
232 | ||
a3423b02 LPC |
233 | /* |
234 | * dapm_widget_invalidate_input_paths() - Invalidate the cached number of | |
235 | * input paths | |
236 | * @w: The widget for which to invalidate the cached number of input paths | |
237 | * | |
238 | * Resets the cached number of inputs for the specified widget and all widgets | |
239 | * that can be reached via outcoming paths from the widget. | |
240 | * | |
241 | * This function must be called if the number of output paths for a widget might | |
242 | * have changed. E.g. if the source state of a widget changes or a path is added | |
243 | * or activated with the widget as the sink. | |
244 | */ | |
245 | static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w) | |
246 | { | |
247 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_IN); | |
248 | } | |
249 | ||
92a99ea4 LPC |
250 | /* |
251 | * dapm_widget_invalidate_output_paths() - Invalidate the cached number of | |
252 | * output paths | |
253 | * @w: The widget for which to invalidate the cached number of output paths | |
254 | * | |
255 | * Resets the cached number of outputs for the specified widget and all widgets | |
256 | * that can be reached via incoming paths from the widget. | |
257 | * | |
258 | * This function must be called if the number of output paths for a widget might | |
259 | * have changed. E.g. if the sink state of a widget changes or a path is added | |
260 | * or activated with the widget as the source. | |
261 | */ | |
262 | static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w) | |
263 | { | |
a3423b02 | 264 | dapm_widget_invalidate_paths(w, SND_SOC_DAPM_DIR_OUT); |
92a99ea4 LPC |
265 | } |
266 | ||
267 | /* | |
268 | * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs | |
269 | * for the widgets connected to a path | |
270 | * @p: The path to invalidate | |
271 | * | |
272 | * Resets the cached number of inputs for the sink of the path and the cached | |
273 | * number of outputs for the source of the path. | |
274 | * | |
275 | * This function must be called when a path is added, removed or the connected | |
276 | * state changes. | |
277 | */ | |
278 | static void dapm_path_invalidate(struct snd_soc_dapm_path *p) | |
279 | { | |
280 | /* | |
281 | * Weak paths or supply paths do not influence the number of input or | |
282 | * output paths of their neighbors. | |
283 | */ | |
284 | if (p->weak || p->is_supply) | |
285 | return; | |
286 | ||
287 | /* | |
288 | * The number of connected endpoints is the sum of the number of | |
289 | * connected endpoints of all neighbors. If a node with 0 connected | |
290 | * endpoints is either connected or disconnected that sum won't change, | |
291 | * so there is no need to re-check the path. | |
292 | */ | |
a3423b02 | 293 | if (p->source->endpoints[SND_SOC_DAPM_DIR_IN] != 0) |
92a99ea4 | 294 | dapm_widget_invalidate_input_paths(p->sink); |
a3423b02 | 295 | if (p->sink->endpoints[SND_SOC_DAPM_DIR_OUT] != 0) |
92a99ea4 LPC |
296 | dapm_widget_invalidate_output_paths(p->source); |
297 | } | |
298 | ||
8be4da29 | 299 | void dapm_mark_endpoints_dirty(struct snd_soc_card *card) |
e2d32ff6 | 300 | { |
e2d32ff6 MB |
301 | struct snd_soc_dapm_widget *w; |
302 | ||
303 | mutex_lock(&card->dapm_mutex); | |
304 | ||
305 | list_for_each_entry(w, &card->widgets, list) { | |
a3423b02 | 306 | if (w->is_ep) { |
8be4da29 | 307 | dapm_mark_dirty(w, "Rechecking endpoints"); |
a3423b02 | 308 | if (w->is_ep & SND_SOC_DAPM_EP_SINK) |
92a99ea4 | 309 | dapm_widget_invalidate_output_paths(w); |
a3423b02 | 310 | if (w->is_ep & SND_SOC_DAPM_EP_SOURCE) |
92a99ea4 LPC |
311 | dapm_widget_invalidate_input_paths(w); |
312 | } | |
e2d32ff6 MB |
313 | } |
314 | ||
315 | mutex_unlock(&card->dapm_mutex); | |
316 | } | |
8be4da29 | 317 | EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); |
e2d32ff6 | 318 | |
2b97eabc | 319 | /* create a new dapm widget */ |
88cb4290 | 320 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
321 | const struct snd_soc_dapm_widget *_widget) |
322 | { | |
199ed3e8 PLB |
323 | struct snd_soc_dapm_widget *w; |
324 | ||
325 | w = kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); | |
326 | if (!w) | |
327 | return NULL; | |
328 | ||
329 | /* | |
330 | * w->name is duplicated in caller, but w->sname isn't. | |
331 | * Duplicate it here if defined | |
332 | */ | |
333 | if (_widget->sname) { | |
334 | w->sname = kstrdup_const(_widget->sname, GFP_KERNEL); | |
a6d9cef3 DC |
335 | if (!w->sname) { |
336 | kfree(w); | |
199ed3e8 | 337 | return NULL; |
a6d9cef3 | 338 | } |
199ed3e8 PLB |
339 | } |
340 | return w; | |
2b97eabc RP |
341 | } |
342 | ||
e84357f7 | 343 | struct dapm_kcontrol_data { |
cf7c1de2 | 344 | unsigned int value; |
57295073 | 345 | struct snd_soc_dapm_widget *widget; |
5106b92f | 346 | struct list_head paths; |
2c75bdf3 | 347 | struct snd_soc_dapm_widget_list *wlist; |
e84357f7 LPC |
348 | }; |
349 | ||
350 | static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, | |
41d80025 | 351 | struct snd_kcontrol *kcontrol, const char *ctrl_name) |
e84357f7 LPC |
352 | { |
353 | struct dapm_kcontrol_data *data; | |
57295073 | 354 | struct soc_mixer_control *mc; |
561ed680 | 355 | struct soc_enum *e; |
773da9b3 CK |
356 | const char *name; |
357 | int ret; | |
e84357f7 | 358 | |
2c75bdf3 | 359 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
40b7bea1 | 360 | if (!data) |
e84357f7 | 361 | return -ENOMEM; |
e84357f7 | 362 | |
5106b92f | 363 | INIT_LIST_HEAD(&data->paths); |
e84357f7 | 364 | |
57295073 LPC |
365 | switch (widget->id) { |
366 | case snd_soc_dapm_switch: | |
367 | case snd_soc_dapm_mixer: | |
368 | case snd_soc_dapm_mixer_named_ctl: | |
369 | mc = (struct soc_mixer_control *)kcontrol->private_value; | |
370 | ||
e7aa450f CYT |
371 | if (mc->autodisable && snd_soc_volsw_is_stereo(mc)) |
372 | dev_warn(widget->dapm->dev, | |
373 | "ASoC: Unsupported stereo autodisable control '%s'\n", | |
374 | ctrl_name); | |
375 | ||
57295073 LPC |
376 | if (mc->autodisable) { |
377 | struct snd_soc_dapm_widget template; | |
378 | ||
41d80025 | 379 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
773da9b3 CK |
380 | "Autodisable"); |
381 | if (!name) { | |
382 | ret = -ENOMEM; | |
383 | goto err_data; | |
384 | } | |
385 | ||
57295073 LPC |
386 | memset(&template, 0, sizeof(template)); |
387 | template.reg = mc->reg; | |
388 | template.mask = (1 << fls(mc->max)) - 1; | |
389 | template.shift = mc->shift; | |
390 | if (mc->invert) | |
391 | template.off_val = mc->max; | |
392 | else | |
393 | template.off_val = 0; | |
394 | template.on_val = template.off_val; | |
395 | template.id = snd_soc_dapm_kcontrol; | |
773da9b3 | 396 | template.name = name; |
57295073 | 397 | |
2daabd78 LPC |
398 | data->value = template.on_val; |
399 | ||
02aa78ab LG |
400 | data->widget = |
401 | snd_soc_dapm_new_control_unlocked(widget->dapm, | |
57295073 | 402 | &template); |
e18077b6 | 403 | kfree(name); |
37e1df8c LW |
404 | if (IS_ERR(data->widget)) { |
405 | ret = PTR_ERR(data->widget); | |
406 | goto err_data; | |
407 | } | |
57295073 LPC |
408 | } |
409 | break; | |
d714f97c | 410 | case snd_soc_dapm_demux: |
561ed680 CK |
411 | case snd_soc_dapm_mux: |
412 | e = (struct soc_enum *)kcontrol->private_value; | |
413 | ||
414 | if (e->autodisable) { | |
415 | struct snd_soc_dapm_widget template; | |
416 | ||
41d80025 | 417 | name = kasprintf(GFP_KERNEL, "%s %s", ctrl_name, |
561ed680 CK |
418 | "Autodisable"); |
419 | if (!name) { | |
420 | ret = -ENOMEM; | |
421 | goto err_data; | |
422 | } | |
423 | ||
424 | memset(&template, 0, sizeof(template)); | |
425 | template.reg = e->reg; | |
426 | template.mask = e->mask << e->shift_l; | |
427 | template.shift = e->shift_l; | |
428 | template.off_val = snd_soc_enum_item_to_val(e, 0); | |
429 | template.on_val = template.off_val; | |
430 | template.id = snd_soc_dapm_kcontrol; | |
431 | template.name = name; | |
432 | ||
433 | data->value = template.on_val; | |
434 | ||
ffacb48e CK |
435 | data->widget = snd_soc_dapm_new_control_unlocked( |
436 | widget->dapm, &template); | |
e18077b6 | 437 | kfree(name); |
37e1df8c LW |
438 | if (IS_ERR(data->widget)) { |
439 | ret = PTR_ERR(data->widget); | |
440 | goto err_data; | |
441 | } | |
561ed680 CK |
442 | |
443 | snd_soc_dapm_add_path(widget->dapm, data->widget, | |
444 | widget, NULL, NULL); | |
445 | } | |
446 | break; | |
57295073 LPC |
447 | default: |
448 | break; | |
449 | } | |
450 | ||
e84357f7 LPC |
451 | kcontrol->private_data = data; |
452 | ||
453 | return 0; | |
773da9b3 | 454 | |
773da9b3 CK |
455 | err_data: |
456 | kfree(data); | |
457 | return ret; | |
e84357f7 LPC |
458 | } |
459 | ||
460 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) | |
461 | { | |
462 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); | |
ff2faf12 SK |
463 | |
464 | list_del(&data->paths); | |
2c75bdf3 | 465 | kfree(data->wlist); |
e84357f7 LPC |
466 | kfree(data); |
467 | } | |
468 | ||
469 | static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( | |
470 | const struct snd_kcontrol *kcontrol) | |
471 | { | |
472 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
473 | ||
2c75bdf3 | 474 | return data->wlist; |
e84357f7 LPC |
475 | } |
476 | ||
477 | static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, | |
478 | struct snd_soc_dapm_widget *widget) | |
479 | { | |
480 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
2c75bdf3 LPC |
481 | struct snd_soc_dapm_widget_list *new_wlist; |
482 | unsigned int n; | |
e84357f7 | 483 | |
2c75bdf3 LPC |
484 | if (data->wlist) |
485 | n = data->wlist->num_widgets + 1; | |
486 | else | |
487 | n = 1; | |
488 | ||
489 | new_wlist = krealloc(data->wlist, | |
07597910 GS |
490 | struct_size(new_wlist, widgets, n), |
491 | GFP_KERNEL); | |
2c75bdf3 | 492 | if (!new_wlist) |
e84357f7 LPC |
493 | return -ENOMEM; |
494 | ||
2c75bdf3 LPC |
495 | new_wlist->widgets[n - 1] = widget; |
496 | new_wlist->num_widgets = n; | |
e84357f7 | 497 | |
2c75bdf3 | 498 | data->wlist = new_wlist; |
e84357f7 LPC |
499 | |
500 | return 0; | |
501 | } | |
502 | ||
5106b92f LPC |
503 | static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, |
504 | struct snd_soc_dapm_path *path) | |
505 | { | |
506 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
507 | ||
508 | list_add_tail(&path->list_kcontrol, &data->paths); | |
57295073 LPC |
509 | } |
510 | ||
511 | static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) | |
512 | { | |
513 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
514 | ||
515 | if (!data->widget) | |
516 | return true; | |
517 | ||
518 | return data->widget->power; | |
5106b92f LPC |
519 | } |
520 | ||
521 | static struct list_head *dapm_kcontrol_get_path_list( | |
522 | const struct snd_kcontrol *kcontrol) | |
523 | { | |
524 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
525 | ||
526 | return &data->paths; | |
527 | } | |
528 | ||
529 | #define dapm_kcontrol_for_each_path(path, kcontrol) \ | |
530 | list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ | |
531 | list_kcontrol) | |
532 | ||
5dc0158a | 533 | unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) |
cf7c1de2 LPC |
534 | { |
535 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
536 | ||
537 | return data->value; | |
538 | } | |
5dc0158a | 539 | EXPORT_SYMBOL_GPL(dapm_kcontrol_get_value); |
cf7c1de2 LPC |
540 | |
541 | static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, | |
542 | unsigned int value) | |
543 | { | |
544 | struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); | |
545 | ||
546 | if (data->value == value) | |
547 | return false; | |
548 | ||
57295073 LPC |
549 | if (data->widget) |
550 | data->widget->on_val = value; | |
551 | ||
cf7c1de2 LPC |
552 | data->value = value; |
553 | ||
554 | return true; | |
555 | } | |
556 | ||
93e39a11 M |
557 | /** |
558 | * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a | |
559 | * kcontrol | |
560 | * @kcontrol: The kcontrol | |
561 | */ | |
562 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( | |
563 | struct snd_kcontrol *kcontrol) | |
564 | { | |
565 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; | |
566 | } | |
567 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); | |
568 | ||
ce0fc93a LPC |
569 | /** |
570 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
571 | * kcontrol | |
572 | * @kcontrol: The kcontrol | |
573 | * | |
574 | * Note: This function must only be used on kcontrols that are known to have | |
575 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
576 | */ | |
577 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
578 | struct snd_kcontrol *kcontrol) | |
579 | { | |
580 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
581 | } | |
582 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
583 | ||
6c120e19 LG |
584 | static void dapm_reset(struct snd_soc_card *card) |
585 | { | |
586 | struct snd_soc_dapm_widget *w; | |
587 | ||
f9fa2b18 MB |
588 | lockdep_assert_held(&card->dapm_mutex); |
589 | ||
6c120e19 LG |
590 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
591 | ||
592 | list_for_each_entry(w, &card->widgets, list) { | |
39eb5fd1 | 593 | w->new_power = w->power; |
6c120e19 | 594 | w->power_checked = false; |
6c120e19 LG |
595 | } |
596 | } | |
597 | ||
94f99c87 LPC |
598 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
599 | { | |
600 | if (!dapm->component) | |
601 | return NULL; | |
602 | return dapm->component->name_prefix; | |
603 | } | |
604 | ||
ce0fc93a | 605 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 606 | unsigned int *value) |
0445bdf4 | 607 | { |
ce0fc93a | 608 | if (!dapm->component) |
e2c330b9 | 609 | return -EIO; |
ce0fc93a | 610 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
611 | } |
612 | ||
ce0fc93a | 613 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 614 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 615 | { |
ce0fc93a | 616 | if (!dapm->component) |
e2c330b9 | 617 | return -EIO; |
fcf6c5ea MB |
618 | return snd_soc_component_update_bits(dapm->component, reg, |
619 | mask, value); | |
49575fb5 LG |
620 | } |
621 | ||
ce0fc93a LPC |
622 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
623 | int reg, unsigned int mask, unsigned int value) | |
624 | { | |
625 | if (!dapm->component) | |
626 | return -EIO; | |
627 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
628 | } | |
629 | ||
eb270e98 MB |
630 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
631 | { | |
e2c330b9 LPC |
632 | if (dapm->component) |
633 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
634 | } |
635 | ||
45a110a1 CK |
636 | static struct snd_soc_dapm_widget * |
637 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
638 | { | |
639 | struct snd_soc_dapm_widget *w = wcache->widget; | |
640 | struct list_head *wlist; | |
641 | const int depth = 2; | |
642 | int i = 0; | |
643 | ||
644 | if (w) { | |
645 | wlist = &w->dapm->card->widgets; | |
646 | ||
647 | list_for_each_entry_from(w, wlist, list) { | |
648 | if (!strcmp(name, w->name)) | |
649 | return w; | |
650 | ||
651 | if (++i == depth) | |
652 | break; | |
653 | } | |
654 | } | |
655 | ||
656 | return NULL; | |
657 | } | |
658 | ||
659 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
660 | struct snd_soc_dapm_widget *w) | |
661 | { | |
662 | wcache->widget = w; | |
663 | } | |
664 | ||
fa880775 LPC |
665 | /** |
666 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
667 | * @dapm: The DAPM context for which to set the level | |
668 | * @level: The level to set | |
669 | * | |
670 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
671 | * callback of DAPM context with the specified level. This will even happen if | |
672 | * the context is already at the same level. Furthermore it will not go through | |
673 | * the normal bias level sequencing, meaning any intermediate states between the | |
674 | * current and the target state will not be entered. | |
675 | * | |
676 | * Note that the change in bias level is only temporary and the next time | |
677 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
678 | * determined by the DAPM core. The function is mainly intended to be used to | |
679 | * used during probe or resume from suspend to power up the device so | |
680 | * initialization can be done, before the DAPM core takes over. | |
681 | */ | |
682 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
683 | enum snd_soc_bias_level level) | |
684 | { | |
685 | int ret = 0; | |
686 | ||
7951b146 KM |
687 | if (dapm->component) |
688 | ret = snd_soc_component_set_bias_level(dapm->component, level); | |
fa880775 | 689 | |
f4bf8d77 LPC |
690 | if (ret == 0) |
691 | dapm->bias_level = level; | |
692 | ||
fa880775 LPC |
693 | return ret; |
694 | } | |
695 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
696 | ||
452c5eaa MB |
697 | /** |
698 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 699 | * @dapm: DAPM context |
452c5eaa MB |
700 | * @level: level to configure |
701 | * | |
702 | * Configure the bias (power) levels for the SoC audio device. | |
703 | * | |
704 | * Returns 0 for success else error. | |
705 | */ | |
ed5a4c47 | 706 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 707 | enum snd_soc_bias_level level) |
452c5eaa | 708 | { |
ed5a4c47 | 709 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
710 | int ret = 0; |
711 | ||
84e90930 MB |
712 | trace_snd_soc_bias_level_start(card, level); |
713 | ||
f0fba2ad | 714 | if (card && card->set_bias_level) |
d4c6005f | 715 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
716 | if (ret != 0) |
717 | goto out; | |
718 | ||
fa880775 LPC |
719 | if (!card || dapm != &card->dapm) |
720 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 721 | |
171ec6b0 MB |
722 | if (ret != 0) |
723 | goto out; | |
724 | ||
725 | if (card && card->set_bias_level_post) | |
d4c6005f | 726 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 727 | out: |
84e90930 MB |
728 | trace_snd_soc_bias_level_done(card, level); |
729 | ||
452c5eaa MB |
730 | return ret; |
731 | } | |
732 | ||
74b8f955 | 733 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 734 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
735 | struct snd_soc_dapm_path *path, const char *control_name, |
736 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 737 | { |
d714f97c | 738 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 739 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 740 | unsigned int val, item; |
2b97eabc | 741 | int i; |
24ff33ac | 742 | |
234c0b8f | 743 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 744 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
745 | val = (val >> e->shift_l) & e->mask; |
746 | item = snd_soc_enum_val_to_item(e, val); | |
747 | } else { | |
24ff33ac DP |
748 | /* since a virtual mux has no backing registers to |
749 | * decide which path to connect, it will try to match | |
750 | * with the first enumeration. This is to ensure | |
751 | * that the default mux choice (the first) will be | |
752 | * correctly powered up during initialization. | |
753 | */ | |
234c0b8f | 754 | item = 0; |
24ff33ac | 755 | } |
2e72f8e3 | 756 | |
f9e0b4af XY |
757 | i = match_string(e->texts, e->items, control_name); |
758 | if (i < 0) | |
759 | return -ENODEV; | |
760 | ||
761 | path->name = e->texts[i]; | |
762 | path->connect = (i == item); | |
763 | return 0; | |
2b97eabc | 764 | |
2b97eabc RP |
765 | } |
766 | ||
234c0b8f | 767 | /* set up initial codec paths */ |
e7aa450f CYT |
768 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i, |
769 | int nth_path) | |
234c0b8f LPC |
770 | { |
771 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 772 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
773 | unsigned int reg = mc->reg; |
774 | unsigned int shift = mc->shift; | |
775 | unsigned int max = mc->max; | |
776 | unsigned int mask = (1 << fls(max)) - 1; | |
777 | unsigned int invert = mc->invert; | |
778 | unsigned int val; | |
779 | ||
780 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 781 | soc_dapm_read(p->sink->dapm, reg, &val); |
e7aa450f CYT |
782 | /* |
783 | * The nth_path argument allows this function to know | |
784 | * which path of a kcontrol it is setting the initial | |
785 | * status for. Ideally this would support any number | |
786 | * of paths and channels. But since kcontrols only come | |
787 | * in mono and stereo variants, we are limited to 2 | |
788 | * channels. | |
789 | * | |
790 | * The following code assumes for stereo controls the | |
791 | * first path is the left channel, and all remaining | |
792 | * paths are the right channel. | |
793 | */ | |
794 | if (snd_soc_volsw_is_stereo(mc) && nth_path > 0) { | |
795 | if (reg != mc->rreg) | |
796 | soc_dapm_read(p->sink->dapm, mc->rreg, &val); | |
797 | val = (val >> mc->rshift) & mask; | |
798 | } else { | |
799 | val = (val >> shift) & mask; | |
800 | } | |
234c0b8f LPC |
801 | if (invert) |
802 | val = max - val; | |
803 | p->connect = !!val; | |
804 | } else { | |
805 | p->connect = 0; | |
806 | } | |
807 | } | |
808 | ||
74b8f955 | 809 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 810 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
811 | struct snd_soc_dapm_path *path, const char *control_name) |
812 | { | |
e7aa450f | 813 | int i, nth_path = 0; |
2b97eabc RP |
814 | |
815 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
816 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
817 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
818 | path->name = path->sink->kcontrol_news[i].name; | |
e7aa450f | 819 | dapm_set_mixer_path_status(path, i, nth_path++); |
2b97eabc RP |
820 | return 0; |
821 | } | |
822 | } | |
823 | return -ENODEV; | |
824 | } | |
825 | ||
af46800b | 826 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 827 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
828 | const struct snd_kcontrol_new *kcontrol_new, |
829 | struct snd_kcontrol **kcontrol) | |
830 | { | |
831 | struct snd_soc_dapm_widget *w; | |
832 | int i; | |
833 | ||
834 | *kcontrol = NULL; | |
835 | ||
836 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
837 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
838 | continue; | |
af46800b SW |
839 | for (i = 0; i < w->num_kcontrols; i++) { |
840 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
841 | if (w->kcontrols) | |
842 | *kcontrol = w->kcontrols[i]; | |
843 | return 1; | |
844 | } | |
845 | } | |
846 | } | |
847 | ||
848 | return 0; | |
849 | } | |
850 | ||
85762e71 SW |
851 | /* |
852 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
853 | * create it. Either way, add the widget into the control's widget list | |
854 | */ | |
19a2557b | 855 | static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, |
946d92a1 | 856 | int kci) |
2b97eabc | 857 | { |
4b80b8c2 | 858 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 859 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 860 | const char *prefix; |
85762e71 SW |
861 | size_t prefix_len; |
862 | int shared; | |
863 | struct snd_kcontrol *kcontrol; | |
85762e71 | 864 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 865 | char *long_name = NULL; |
85762e71 | 866 | const char *name; |
e5092c96 | 867 | int ret = 0; |
efb7ac3f | 868 | |
94f99c87 | 869 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
870 | if (prefix) |
871 | prefix_len = strlen(prefix) + 1; | |
872 | else | |
873 | prefix_len = 0; | |
874 | ||
85762e71 SW |
875 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
876 | &kcontrol); | |
2b97eabc | 877 | |
85762e71 SW |
878 | if (!kcontrol) { |
879 | if (shared) { | |
880 | wname_in_long_name = false; | |
881 | kcname_in_long_name = true; | |
882 | } else { | |
883 | switch (w->id) { | |
884 | case snd_soc_dapm_switch: | |
885 | case snd_soc_dapm_mixer: | |
19a2557b | 886 | case snd_soc_dapm_pga: |
882c8b4a | 887 | case snd_soc_dapm_effect: |
a3930ed0 | 888 | case snd_soc_dapm_out_drv: |
85762e71 SW |
889 | wname_in_long_name = true; |
890 | kcname_in_long_name = true; | |
891 | break; | |
892 | case snd_soc_dapm_mixer_named_ctl: | |
893 | wname_in_long_name = false; | |
894 | kcname_in_long_name = true; | |
895 | break; | |
d714f97c | 896 | case snd_soc_dapm_demux: |
85762e71 | 897 | case snd_soc_dapm_mux: |
85762e71 SW |
898 | wname_in_long_name = true; |
899 | kcname_in_long_name = false; | |
900 | break; | |
901 | default: | |
85762e71 | 902 | return -EINVAL; |
82cd8764 | 903 | } |
85762e71 SW |
904 | } |
905 | ||
906 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
907 | /* |
908 | * The control will get a prefix from the control | |
909 | * creation process but we're also using the same | |
910 | * prefix for widgets so cut the prefix off the | |
911 | * front of the widget name. | |
ca9c1aae | 912 | */ |
2b581074 | 913 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
914 | w->name + prefix_len, |
915 | w->kcontrol_news[kci].name); | |
e84357f7 | 916 | if (long_name == NULL) |
2b581074 | 917 | return -ENOMEM; |
85762e71 SW |
918 | |
919 | name = long_name; | |
920 | } else if (wname_in_long_name) { | |
921 | long_name = NULL; | |
922 | name = w->name + prefix_len; | |
923 | } else { | |
924 | long_name = NULL; | |
925 | name = w->kcontrol_news[kci].name; | |
926 | } | |
ca9c1aae | 927 | |
e84357f7 | 928 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 929 | prefix); |
e5092c96 DM |
930 | if (!kcontrol) { |
931 | ret = -ENOMEM; | |
932 | goto exit_free; | |
933 | } | |
934 | ||
9356e9d5 | 935 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 | 936 | |
41d80025 | 937 | ret = dapm_kcontrol_data_alloc(w, kcontrol, name); |
e84357f7 LPC |
938 | if (ret) { |
939 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 940 | goto exit_free; |
e84357f7 LPC |
941 | } |
942 | ||
85762e71 SW |
943 | ret = snd_ctl_add(card, kcontrol); |
944 | if (ret < 0) { | |
945 | dev_err(dapm->dev, | |
946 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
947 | w->name, name, ret); | |
e5092c96 | 948 | goto exit_free; |
85762e71 | 949 | } |
85762e71 | 950 | } |
2b97eabc | 951 | |
2c75bdf3 | 952 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
953 | if (ret == 0) |
954 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 955 | |
e5092c96 DM |
956 | exit_free: |
957 | kfree(long_name); | |
ca9c1aae | 958 | |
e5092c96 | 959 | return ret; |
85762e71 | 960 | } |
219b93f5 | 961 | |
85762e71 SW |
962 | /* create new dapm mixer control */ |
963 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
964 | { | |
965 | int i, ret; | |
966 | struct snd_soc_dapm_path *path; | |
561ed680 | 967 | struct dapm_kcontrol_data *data; |
85762e71 SW |
968 | |
969 | /* add kcontrol */ | |
970 | for (i = 0; i < w->num_kcontrols; i++) { | |
971 | /* match name */ | |
e63bfd45 | 972 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
973 | /* mixer/mux paths name must match control name */ |
974 | if (path->name != (char *)w->kcontrol_news[i].name) | |
975 | continue; | |
976 | ||
561ed680 | 977 | if (!w->kcontrols[i]) { |
19a2557b | 978 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
979 | if (ret < 0) |
980 | return ret; | |
2b97eabc | 981 | } |
85762e71 | 982 | |
946d92a1 | 983 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
984 | |
985 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
986 | if (data->widget) | |
987 | snd_soc_dapm_add_path(data->widget->dapm, | |
988 | data->widget, | |
989 | path->source, | |
990 | NULL, NULL); | |
2b97eabc RP |
991 | } |
992 | } | |
85762e71 SW |
993 | |
994 | return 0; | |
2b97eabc RP |
995 | } |
996 | ||
997 | /* create new dapm mux control */ | |
4b80b8c2 | 998 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 999 | { |
4b80b8c2 | 1000 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 1001 | enum snd_soc_dapm_direction dir; |
85762e71 | 1002 | struct snd_soc_dapm_path *path; |
d714f97c | 1003 | const char *type; |
af46800b | 1004 | int ret; |
2b97eabc | 1005 | |
d714f97c LPC |
1006 | switch (w->id) { |
1007 | case snd_soc_dapm_mux: | |
a3423b02 | 1008 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
1009 | type = "mux"; |
1010 | break; | |
1011 | case snd_soc_dapm_demux: | |
a3423b02 | 1012 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
1013 | type = "demux"; |
1014 | break; | |
1015 | default: | |
1016 | return -EINVAL; | |
1017 | } | |
1018 | ||
af46800b SW |
1019 | if (w->num_kcontrols != 1) { |
1020 | dev_err(dapm->dev, | |
d714f97c | 1021 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 1022 | w->name); |
2b97eabc RP |
1023 | return -EINVAL; |
1024 | } | |
1025 | ||
a3423b02 | 1026 | if (list_empty(&w->edges[dir])) { |
d714f97c | 1027 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 1028 | return -EINVAL; |
af46800b | 1029 | } |
ce6120cc | 1030 | |
19a2557b | 1031 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
1032 | if (ret < 0) |
1033 | return ret; | |
fad59888 | 1034 | |
a3423b02 LPC |
1035 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
1036 | if (path->name) | |
1037 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 1038 | } |
2b97eabc | 1039 | |
af46800b | 1040 | return 0; |
2b97eabc RP |
1041 | } |
1042 | ||
1043 | /* create new dapm volume control */ | |
4b80b8c2 | 1044 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 1045 | { |
19a2557b JK |
1046 | int i, ret; |
1047 | ||
1048 | for (i = 0; i < w->num_kcontrols; i++) { | |
1049 | ret = dapm_create_or_share_kcontrol(w, i); | |
1050 | if (ret < 0) | |
1051 | return ret; | |
1052 | } | |
2b97eabc | 1053 | |
a6c65736 | 1054 | return 0; |
2b97eabc RP |
1055 | } |
1056 | ||
c6615082 NO |
1057 | /* create new dapm dai link control */ |
1058 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
1059 | { | |
1060 | int i, ret; | |
1061 | struct snd_kcontrol *kcontrol; | |
1062 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1063 | struct snd_card *card = dapm->card->snd_card; | |
243bcfaf | 1064 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 NO |
1065 | |
1066 | /* create control for links with > 1 config */ | |
243bcfaf | 1067 | if (rtd->dai_link->num_params <= 1) |
c6615082 NO |
1068 | return 0; |
1069 | ||
1070 | /* add kcontrol */ | |
1071 | for (i = 0; i < w->num_kcontrols; i++) { | |
1072 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1073 | w->name, NULL); | |
1074 | ret = snd_ctl_add(card, kcontrol); | |
1075 | if (ret < 0) { | |
1076 | dev_err(dapm->dev, | |
1077 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1078 | w->name, w->kcontrol_news[i].name, ret); | |
1079 | return ret; | |
1080 | } | |
1081 | kcontrol->private_data = w; | |
1082 | w->kcontrols[i] = kcontrol; | |
1083 | } | |
1084 | ||
1085 | return 0; | |
1086 | } | |
1087 | ||
9949788b MB |
1088 | /* We implement power down on suspend by checking the power state of |
1089 | * the ALSA card - when we are suspending the ALSA state for the card | |
1090 | * is set to D3. | |
1091 | */ | |
1092 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1093 | { | |
12ea2c78 | 1094 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1095 | |
f0fba2ad | 1096 | switch (level) { |
9949788b MB |
1097 | case SNDRV_CTL_POWER_D3hot: |
1098 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1099 | if (widget->ignore_suspend) |
30a6a1a4 | 1100 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1101 | widget->name); |
1547aba9 | 1102 | return widget->ignore_suspend; |
9949788b MB |
1103 | default: |
1104 | return 1; | |
1105 | } | |
1106 | } | |
1107 | ||
1ce43acf LPC |
1108 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1109 | struct list_head *widgets) | |
ec2e3031 | 1110 | { |
1ce43acf LPC |
1111 | struct snd_soc_dapm_widget *w; |
1112 | struct list_head *it; | |
1113 | unsigned int size = 0; | |
1114 | unsigned int i = 0; | |
ec2e3031 | 1115 | |
1ce43acf LPC |
1116 | list_for_each(it, widgets) |
1117 | size++; | |
ec2e3031 | 1118 | |
acafe7e3 | 1119 | *list = kzalloc(struct_size(*list, widgets, size), GFP_KERNEL); |
1ce43acf | 1120 | if (*list == NULL) |
ec2e3031 | 1121 | return -ENOMEM; |
ec2e3031 | 1122 | |
1ce43acf LPC |
1123 | list_for_each_entry(w, widgets, work_list) |
1124 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1125 | |
1ce43acf LPC |
1126 | (*list)->num_widgets = i; |
1127 | ||
1128 | return 0; | |
ec2e3031 LG |
1129 | } |
1130 | ||
872f3ac5 SM |
1131 | /* |
1132 | * Recursively reset the cached number of inputs or outputs for the specified | |
1133 | * widget and all widgets that can be reached via incoming or outcoming paths | |
1134 | * from the widget. | |
1135 | */ | |
1136 | static void invalidate_paths_ep(struct snd_soc_dapm_widget *widget, | |
1137 | enum snd_soc_dapm_direction dir) | |
1138 | { | |
1139 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
1140 | struct snd_soc_dapm_path *path; | |
1141 | ||
1142 | widget->endpoints[dir] = -1; | |
1143 | ||
1144 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { | |
1145 | if (path->weak || path->is_supply) | |
1146 | continue; | |
1147 | ||
1148 | if (path->walking) | |
1149 | return; | |
1150 | ||
1151 | if (path->connect) { | |
1152 | path->walking = 1; | |
1153 | invalidate_paths_ep(path->node[dir], dir); | |
1154 | path->walking = 0; | |
1155 | } | |
1156 | } | |
1157 | } | |
1158 | ||
2b97eabc | 1159 | /* |
a3423b02 LPC |
1160 | * Common implementation for is_connected_output_ep() and |
1161 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1162 | * the two specialized functions is only marginally larger then the size of the | |
1163 | * generic function and at the same time the fast path of the specialized | |
1164 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1165 | */ |
a3423b02 LPC |
1166 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1167 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
6742064a PS |
1168 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *, |
1169 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1170 | enum snd_soc_dapm_direction)), | |
1171 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1172 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1173 | { |
a3423b02 | 1174 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1175 | struct snd_soc_dapm_path *path; |
1176 | int con = 0; | |
1177 | ||
a3423b02 LPC |
1178 | if (widget->endpoints[dir] >= 0) |
1179 | return widget->endpoints[dir]; | |
024dc078 | 1180 | |
de02d078 MB |
1181 | DAPM_UPDATE_STAT(widget, path_checks); |
1182 | ||
1ce43acf LPC |
1183 | /* do we need to add this widget to the list ? */ |
1184 | if (list) | |
1185 | list_add_tail(&widget->work_list, list); | |
1186 | ||
09464974 | 1187 | if (custom_stop_condition && custom_stop_condition(widget, dir)) { |
8dd26dff CK |
1188 | list = NULL; |
1189 | custom_stop_condition = NULL; | |
09464974 | 1190 | } |
6742064a | 1191 | |
a3423b02 LPC |
1192 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1193 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1194 | return widget->endpoints[dir]; | |
2b97eabc RP |
1195 | } |
1196 | ||
a3423b02 | 1197 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1198 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1199 | ||
c1862c8b | 1200 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1201 | continue; |
1202 | ||
8af294b4 MB |
1203 | if (path->walking) |
1204 | return 1; | |
1205 | ||
a3423b02 | 1206 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1207 | |
7ddd4cd5 | 1208 | if (path->connect) { |
8af294b4 | 1209 | path->walking = 1; |
6742064a | 1210 | con += fn(path->node[dir], list, custom_stop_condition); |
8af294b4 | 1211 | path->walking = 0; |
2b97eabc RP |
1212 | } |
1213 | } | |
1214 | ||
a3423b02 | 1215 | widget->endpoints[dir] = con; |
024dc078 | 1216 | |
2b97eabc RP |
1217 | return con; |
1218 | } | |
1219 | ||
a3423b02 LPC |
1220 | /* |
1221 | * Recursively check for a completed path to an active or physically connected | |
1222 | * output widget. Returns number of complete paths. | |
6742064a PS |
1223 | * |
1224 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1225 | * This function takes the dapm widget currently being examined and the walk | |
8dd26dff CK |
1226 | * direction as an arguments, it should return true if widgets from that point |
1227 | * in the graph onwards should not be added to the widget list. | |
a3423b02 LPC |
1228 | */ |
1229 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
6742064a PS |
1230 | struct list_head *list, |
1231 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1232 | enum snd_soc_dapm_direction)) | |
a3423b02 LPC |
1233 | { |
1234 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
6742064a | 1235 | is_connected_output_ep, custom_stop_condition); |
a3423b02 LPC |
1236 | } |
1237 | ||
2b97eabc RP |
1238 | /* |
1239 | * Recursively check for a completed path to an active or physically connected | |
1240 | * input widget. Returns number of complete paths. | |
6742064a PS |
1241 | * |
1242 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1243 | * This function takes the dapm widget currently being examined and the walk | |
1244 | * direction as an arguments, it should return true if the walk should be | |
1245 | * stopped and false otherwise. | |
2b97eabc | 1246 | */ |
ec2e3031 | 1247 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
6742064a PS |
1248 | struct list_head *list, |
1249 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1250 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1251 | { |
a3423b02 | 1252 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
6742064a | 1253 | is_connected_input_ep, custom_stop_condition); |
2b97eabc RP |
1254 | } |
1255 | ||
ec2e3031 LG |
1256 | /** |
1257 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1258 | * @dai: the soc DAI. | |
1259 | * @stream: stream direction. | |
1260 | * @list: list of active widgets for this stream. | |
6742064a PS |
1261 | * @custom_stop_condition: (optional) a function meant to stop the widget graph |
1262 | * walk based on custom logic. | |
ec2e3031 | 1263 | * |
c8046000 | 1264 | * Queries DAPM graph as to whether a valid audio stream path exists for |
ec2e3031 LG |
1265 | * the initial stream specified by name. This takes into account |
1266 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1267 | * | |
6742064a PS |
1268 | * Optionally, can be supplied with a function acting as a stopping condition. |
1269 | * This function takes the dapm widget currently being examined and the walk | |
1270 | * direction as an arguments, it should return true if the walk should be | |
1271 | * stopped and false otherwise. | |
1272 | * | |
ec2e3031 LG |
1273 | * Returns the number of valid paths or negative error. |
1274 | */ | |
1275 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
6742064a PS |
1276 | struct snd_soc_dapm_widget_list **list, |
1277 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1278 | enum snd_soc_dapm_direction)) | |
ec2e3031 | 1279 | { |
313665b9 | 1280 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1281 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1282 | LIST_HEAD(widgets); |
ec2e3031 | 1283 | int paths; |
1ce43acf | 1284 | int ret; |
ec2e3031 LG |
1285 | |
1286 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 | 1287 | |
872f3ac5 SM |
1288 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
1289 | w = dai->playback_widget; | |
1290 | invalidate_paths_ep(w, SND_SOC_DAPM_DIR_OUT); | |
1291 | paths = is_connected_output_ep(w, &widgets, | |
6742064a | 1292 | custom_stop_condition); |
872f3ac5 SM |
1293 | } else { |
1294 | w = dai->capture_widget; | |
1295 | invalidate_paths_ep(w, SND_SOC_DAPM_DIR_IN); | |
1296 | paths = is_connected_input_ep(w, &widgets, | |
6742064a | 1297 | custom_stop_condition); |
872f3ac5 | 1298 | } |
1ce43acf LPC |
1299 | |
1300 | /* Drop starting point */ | |
1301 | list_del(widgets.next); | |
1302 | ||
1303 | ret = dapm_widget_list_create(list, &widgets); | |
1304 | if (ret) | |
30abbe77 | 1305 | paths = ret; |
ec2e3031 LG |
1306 | |
1307 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1308 | mutex_unlock(&card->dapm_mutex); |
1309 | ||
1310 | return paths; | |
1311 | } | |
1312 | ||
62ea874a MB |
1313 | /* |
1314 | * Handler for regulator supply widget. | |
1315 | */ | |
1316 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1317 | struct snd_kcontrol *kcontrol, int event) | |
1318 | { | |
c05b84d1 MB |
1319 | int ret; |
1320 | ||
eb270e98 MB |
1321 | soc_dapm_async_complete(w->dapm); |
1322 | ||
c05b84d1 | 1323 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1324 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1325 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1326 | if (ret != 0) |
1327 | dev_warn(w->dapm->dev, | |
30686c35 | 1328 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1329 | w->name, ret); |
1330 | } | |
1331 | ||
a3cc056b | 1332 | return regulator_enable(w->regulator); |
c05b84d1 | 1333 | } else { |
de9ba98b | 1334 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1335 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1336 | if (ret != 0) |
1337 | dev_warn(w->dapm->dev, | |
30686c35 | 1338 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1339 | w->name, ret); |
1340 | } | |
1341 | ||
a3cc056b | 1342 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1343 | } |
62ea874a MB |
1344 | } |
1345 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1346 | ||
5b2d15bb SK |
1347 | /* |
1348 | * Handler for pinctrl widget. | |
1349 | */ | |
1350 | int dapm_pinctrl_event(struct snd_soc_dapm_widget *w, | |
1351 | struct snd_kcontrol *kcontrol, int event) | |
1352 | { | |
1353 | struct snd_soc_dapm_pinctrl_priv *priv = w->priv; | |
1354 | struct pinctrl *p = w->pinctrl; | |
1355 | struct pinctrl_state *s; | |
1356 | ||
1357 | if (!p || !priv) | |
1358 | return -EIO; | |
1359 | ||
1360 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1361 | s = pinctrl_lookup_state(p, priv->active_state); | |
1362 | else | |
1363 | s = pinctrl_lookup_state(p, priv->sleep_state); | |
1364 | ||
1365 | if (IS_ERR(s)) | |
1366 | return PTR_ERR(s); | |
1367 | ||
1368 | return pinctrl_select_state(p, s); | |
1369 | } | |
1370 | EXPORT_SYMBOL_GPL(dapm_pinctrl_event); | |
1371 | ||
d7e7eb91 OL |
1372 | /* |
1373 | * Handler for clock supply widget. | |
1374 | */ | |
1375 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1376 | struct snd_kcontrol *kcontrol, int event) | |
1377 | { | |
1378 | if (!w->clk) | |
1379 | return -EIO; | |
1380 | ||
eb270e98 MB |
1381 | soc_dapm_async_complete(w->dapm); |
1382 | ||
d7e7eb91 | 1383 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1384 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1385 | } else { |
37c1b927 | 1386 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1387 | return 0; |
1388 | } | |
d78b1e43 | 1389 | |
98b3cf12 | 1390 | return 0; |
d7e7eb91 OL |
1391 | } |
1392 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1393 | ||
d805002b MB |
1394 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1395 | { | |
9b8a83b2 MB |
1396 | if (w->power_checked) |
1397 | return w->new_power; | |
1398 | ||
d805002b | 1399 | if (w->force) |
9b8a83b2 | 1400 | w->new_power = 1; |
d805002b | 1401 | else |
9b8a83b2 MB |
1402 | w->new_power = w->power_check(w); |
1403 | ||
1404 | w->power_checked = true; | |
1405 | ||
1406 | return w->new_power; | |
d805002b MB |
1407 | } |
1408 | ||
c8046000 | 1409 | /* Generic check to see if a widget should be powered. */ |
cd0f2d47 MB |
1410 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
1411 | { | |
1412 | int in, out; | |
1413 | ||
de02d078 MB |
1414 | DAPM_UPDATE_STAT(w, power_checks); |
1415 | ||
6742064a PS |
1416 | in = is_connected_input_ep(w, NULL, NULL); |
1417 | out = is_connected_output_ep(w, NULL, NULL); | |
cd0f2d47 MB |
1418 | return out != 0 && in != 0; |
1419 | } | |
1420 | ||
246d0a17 MB |
1421 | /* Check to see if a power supply is needed */ |
1422 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1423 | { | |
1424 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1425 | |
de02d078 MB |
1426 | DAPM_UPDATE_STAT(w, power_checks); |
1427 | ||
246d0a17 | 1428 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1429 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1430 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1431 | ||
bf3a9e13 MB |
1432 | if (path->weak) |
1433 | continue; | |
1434 | ||
215edda3 MB |
1435 | if (path->connected && |
1436 | !path->connected(path->source, path->sink)) | |
1437 | continue; | |
1438 | ||
f68d7e16 MB |
1439 | if (dapm_widget_power_check(path->sink)) |
1440 | return 1; | |
246d0a17 MB |
1441 | } |
1442 | ||
f68d7e16 | 1443 | return 0; |
246d0a17 MB |
1444 | } |
1445 | ||
35c64bca MB |
1446 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1447 | { | |
20bb0184 | 1448 | return w->connected; |
35c64bca MB |
1449 | } |
1450 | ||
38357ab2 MB |
1451 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1452 | struct snd_soc_dapm_widget *b, | |
828a842f | 1453 | bool power_up) |
42aa3418 | 1454 | { |
828a842f MB |
1455 | int *sort; |
1456 | ||
f13d4b5f PLB |
1457 | BUILD_BUG_ON(ARRAY_SIZE(dapm_up_seq) != SND_SOC_DAPM_TYPE_COUNT); |
1458 | BUILD_BUG_ON(ARRAY_SIZE(dapm_down_seq) != SND_SOC_DAPM_TYPE_COUNT); | |
1459 | ||
828a842f MB |
1460 | if (power_up) |
1461 | sort = dapm_up_seq; | |
1462 | else | |
1463 | sort = dapm_down_seq; | |
1464 | ||
f13d4b5f PLB |
1465 | WARN_ONCE(sort[a->id] == 0, "offset a->id %d not initialized\n", a->id); |
1466 | WARN_ONCE(sort[b->id] == 0, "offset b->id %d not initialized\n", b->id); | |
1467 | ||
38357ab2 MB |
1468 | if (sort[a->id] != sort[b->id]) |
1469 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1470 | if (a->subseq != b->subseq) { |
1471 | if (power_up) | |
1472 | return a->subseq - b->subseq; | |
1473 | else | |
1474 | return b->subseq - a->subseq; | |
1475 | } | |
b22ead2a MB |
1476 | if (a->reg != b->reg) |
1477 | return a->reg - b->reg; | |
84dab567 MB |
1478 | if (a->dapm != b->dapm) |
1479 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1480 | |
38357ab2 MB |
1481 | return 0; |
1482 | } | |
42aa3418 | 1483 | |
38357ab2 MB |
1484 | /* Insert a widget in order into a DAPM power sequence. */ |
1485 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1486 | struct list_head *list, | |
828a842f | 1487 | bool power_up) |
38357ab2 MB |
1488 | { |
1489 | struct snd_soc_dapm_widget *w; | |
1490 | ||
1491 | list_for_each_entry(w, list, power_list) | |
828a842f | 1492 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1493 | list_add_tail(&new_widget->power_list, &w->power_list); |
1494 | return; | |
1495 | } | |
1496 | ||
1497 | list_add_tail(&new_widget->power_list, list); | |
1498 | } | |
1499 | ||
95dd5cd6 | 1500 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1501 | struct snd_soc_dapm_widget *w, int event) |
1502 | { | |
68f89ad8 MB |
1503 | const char *ev_name; |
1504 | int power, ret; | |
1505 | ||
1506 | switch (event) { | |
1507 | case SND_SOC_DAPM_PRE_PMU: | |
1508 | ev_name = "PRE_PMU"; | |
1509 | power = 1; | |
1510 | break; | |
1511 | case SND_SOC_DAPM_POST_PMU: | |
1512 | ev_name = "POST_PMU"; | |
1513 | power = 1; | |
1514 | break; | |
1515 | case SND_SOC_DAPM_PRE_PMD: | |
1516 | ev_name = "PRE_PMD"; | |
1517 | power = 0; | |
1518 | break; | |
1519 | case SND_SOC_DAPM_POST_PMD: | |
1520 | ev_name = "POST_PMD"; | |
1521 | power = 0; | |
1522 | break; | |
80114129 MB |
1523 | case SND_SOC_DAPM_WILL_PMU: |
1524 | ev_name = "WILL_PMU"; | |
1525 | power = 1; | |
1526 | break; | |
1527 | case SND_SOC_DAPM_WILL_PMD: | |
1528 | ev_name = "WILL_PMD"; | |
1529 | power = 0; | |
1530 | break; | |
68f89ad8 | 1531 | default: |
a6ed0608 | 1532 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1533 | return; |
1534 | } | |
1535 | ||
39eb5fd1 | 1536 | if (w->new_power != power) |
68f89ad8 MB |
1537 | return; |
1538 | ||
1539 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1540 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1541 | w->name, ev_name); |
eb270e98 | 1542 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1543 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1544 | ret = w->event(w, NULL, event); |
84e90930 | 1545 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1546 | if (ret < 0) |
95dd5cd6 | 1547 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1548 | ev_name, w->name, ret); |
1549 | } | |
1550 | } | |
1551 | ||
b22ead2a | 1552 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1553 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1554 | struct list_head *pending) |
163cac06 | 1555 | { |
ce0fc93a | 1556 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1557 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1558 | int reg; |
b22ead2a MB |
1559 | unsigned int value = 0; |
1560 | unsigned int mask = 0; | |
b22ead2a | 1561 | |
ce0fc93a LPC |
1562 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1563 | reg = w->reg; | |
1564 | dapm = w->dapm; | |
b22ead2a MB |
1565 | |
1566 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1567 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1568 | w->power = w->new_power; |
b22ead2a | 1569 | |
de9ba98b LPC |
1570 | mask |= w->mask << w->shift; |
1571 | if (w->power) | |
1572 | value |= w->on_val << w->shift; | |
b22ead2a | 1573 | else |
de9ba98b | 1574 | value |= w->off_val << w->shift; |
b22ead2a | 1575 | |
ce0fc93a | 1576 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1577 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1578 | w->name, reg, value, mask); | |
81628103 | 1579 | |
68f89ad8 | 1580 | /* Check for events */ |
95dd5cd6 LPC |
1581 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1582 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1583 | } |
1584 | ||
1585 | if (reg >= 0) { | |
29376bc7 MB |
1586 | /* Any widget will do, they should all be updating the |
1587 | * same register. | |
1588 | */ | |
29376bc7 | 1589 | |
ce0fc93a | 1590 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1591 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1592 | value, mask, reg, card->pop_time); |
1593 | pop_wait(card->pop_time); | |
ce0fc93a | 1594 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1595 | } |
1596 | ||
81628103 | 1597 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1598 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1599 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1600 | } |
b22ead2a | 1601 | } |
42aa3418 | 1602 | |
b22ead2a MB |
1603 | /* Apply a DAPM power sequence. |
1604 | * | |
1605 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1606 | * order to minimise the number of writes to the device required | |
1607 | * multiple widgets will be updated in a single write where possible. | |
1608 | * Currently anything that requires more than a single write is not | |
1609 | * handled. | |
1610 | */ | |
95dd5cd6 LPC |
1611 | static void dapm_seq_run(struct snd_soc_card *card, |
1612 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1613 | { |
1614 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1615 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1616 | LIST_HEAD(pending); |
1617 | int cur_sort = -1; | |
20e4859d | 1618 | int cur_subseq = -1; |
b22ead2a | 1619 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1620 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1621 | int ret, i; |
828a842f MB |
1622 | int *sort; |
1623 | ||
1624 | if (power_up) | |
1625 | sort = dapm_up_seq; | |
1626 | else | |
1627 | sort = dapm_down_seq; | |
163cac06 | 1628 | |
b22ead2a MB |
1629 | list_for_each_entry_safe(w, n, list, power_list) { |
1630 | ret = 0; | |
1631 | ||
1632 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1633 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1634 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1635 | if (!list_empty(&pending)) |
95dd5cd6 | 1636 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1637 | |
9d415fbf | 1638 | if (cur_dapm && cur_dapm->component) { |
474b62d6 MB |
1639 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) |
1640 | if (sort[i] == cur_sort) | |
9d415fbf KM |
1641 | snd_soc_component_seq_notifier( |
1642 | cur_dapm->component, | |
1643 | i, cur_subseq); | |
474b62d6 MB |
1644 | } |
1645 | ||
eb270e98 MB |
1646 | if (cur_dapm && w->dapm != cur_dapm) |
1647 | soc_dapm_async_complete(cur_dapm); | |
1648 | ||
b22ead2a MB |
1649 | INIT_LIST_HEAD(&pending); |
1650 | cur_sort = -1; | |
b0b3e6f8 | 1651 | cur_subseq = INT_MIN; |
b22ead2a | 1652 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1653 | cur_dapm = NULL; |
b22ead2a MB |
1654 | } |
1655 | ||
163cac06 MB |
1656 | switch (w->id) { |
1657 | case snd_soc_dapm_pre: | |
1658 | if (!w->event) | |
b22ead2a MB |
1659 | list_for_each_entry_safe_continue(w, n, list, |
1660 | power_list); | |
163cac06 | 1661 | |
b22ead2a | 1662 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1663 | ret = w->event(w, |
1664 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1665 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1666 | ret = w->event(w, |
1667 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1668 | break; |
1669 | ||
1670 | case snd_soc_dapm_post: | |
1671 | if (!w->event) | |
b22ead2a MB |
1672 | list_for_each_entry_safe_continue(w, n, list, |
1673 | power_list); | |
163cac06 | 1674 | |
b22ead2a | 1675 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1676 | ret = w->event(w, |
1677 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1678 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1679 | ret = w->event(w, |
1680 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1681 | break; |
1682 | ||
b22ead2a | 1683 | default: |
81628103 MB |
1684 | /* Queue it up for application */ |
1685 | cur_sort = sort[w->id]; | |
20e4859d | 1686 | cur_subseq = w->subseq; |
81628103 | 1687 | cur_reg = w->reg; |
7be31be8 | 1688 | cur_dapm = w->dapm; |
81628103 MB |
1689 | list_move(&w->power_list, &pending); |
1690 | break; | |
163cac06 | 1691 | } |
b22ead2a MB |
1692 | |
1693 | if (ret < 0) | |
f7d41ae8 | 1694 | dev_err(w->dapm->dev, |
30a6a1a4 | 1695 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1696 | } |
b22ead2a MB |
1697 | |
1698 | if (!list_empty(&pending)) | |
95dd5cd6 | 1699 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 | 1700 | |
9d415fbf | 1701 | if (cur_dapm && cur_dapm->component) { |
474b62d6 MB |
1702 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) |
1703 | if (sort[i] == cur_sort) | |
9d415fbf KM |
1704 | snd_soc_component_seq_notifier( |
1705 | cur_dapm->component, | |
1706 | i, cur_subseq); | |
474b62d6 | 1707 | } |
eb270e98 MB |
1708 | |
1709 | list_for_each_entry(d, &card->dapm_list, list) { | |
1710 | soc_dapm_async_complete(d); | |
1711 | } | |
42aa3418 MB |
1712 | } |
1713 | ||
95dd5cd6 | 1714 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1715 | { |
95dd5cd6 | 1716 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1717 | struct snd_soc_dapm_widget_list *wlist; |
1718 | struct snd_soc_dapm_widget *w = NULL; | |
1719 | unsigned int wi; | |
97404f2e MB |
1720 | int ret; |
1721 | ||
57295073 | 1722 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1723 | return; |
1724 | ||
e84357f7 | 1725 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1726 | |
ce6cfaf1 LPC |
1727 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1728 | w = wlist->widgets[wi]; | |
1729 | ||
1730 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1731 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1732 | if (ret != 0) | |
95dd5cd6 | 1733 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1734 | w->name, ret); |
1735 | } | |
97404f2e MB |
1736 | } |
1737 | ||
ce6cfaf1 LPC |
1738 | if (!w) |
1739 | return; | |
1740 | ||
ce0fc93a LPC |
1741 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1742 | update->val); | |
97404f2e | 1743 | if (ret < 0) |
95dd5cd6 | 1744 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1745 | w->name, ret); |
97404f2e | 1746 | |
e411b0b5 CYT |
1747 | if (update->has_second_set) { |
1748 | ret = soc_dapm_update_bits(w->dapm, update->reg2, | |
1749 | update->mask2, update->val2); | |
1750 | if (ret < 0) | |
1751 | dev_err(w->dapm->dev, | |
1752 | "ASoC: %s DAPM update failed: %d\n", | |
1753 | w->name, ret); | |
1754 | } | |
1755 | ||
ce6cfaf1 LPC |
1756 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
1757 | w = wlist->widgets[wi]; | |
1758 | ||
1759 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1760 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1761 | if (ret != 0) | |
95dd5cd6 | 1762 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1763 | w->name, ret); |
1764 | } | |
97404f2e MB |
1765 | } |
1766 | } | |
1767 | ||
9d0624a7 MB |
1768 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1769 | * they're changing state. | |
1770 | */ | |
1771 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1772 | { | |
1773 | struct snd_soc_dapm_context *d = data; | |
1774 | int ret; | |
1775 | ||
c8046000 | 1776 | /* If we're off and we're not supposed to go into STANDBY */ |
56fba41f MB |
1777 | if (d->bias_level == SND_SOC_BIAS_OFF && |
1778 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1779 | if (d->dev) |
1780 | pm_runtime_get_sync(d->dev); | |
1781 | ||
9d0624a7 MB |
1782 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1783 | if (ret != 0) | |
1784 | dev_err(d->dev, | |
30a6a1a4 | 1785 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1786 | } |
1787 | ||
ce85a4d7 LPC |
1788 | /* Prepare for a transition to ON or away from ON */ |
1789 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1790 | d->bias_level != SND_SOC_BIAS_ON) || | |
1791 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1792 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1793 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1794 | if (ret != 0) | |
1795 | dev_err(d->dev, | |
30a6a1a4 | 1796 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1797 | } |
1798 | } | |
1799 | ||
1800 | /* Async callback run prior to DAPM sequences - brings to their final | |
1801 | * state. | |
1802 | */ | |
1803 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1804 | { | |
1805 | struct snd_soc_dapm_context *d = data; | |
1806 | int ret; | |
1807 | ||
1808 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1809 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1810 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1811 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1812 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1813 | if (ret != 0) | |
30a6a1a4 | 1814 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1815 | ret); |
1816 | } | |
97404f2e | 1817 | |
9d0624a7 | 1818 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1819 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1820 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1821 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1822 | if (ret != 0) | |
30a6a1a4 LG |
1823 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1824 | ret); | |
f1aac484 MB |
1825 | |
1826 | if (d->dev) | |
fb644e9c | 1827 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1828 | } |
1829 | ||
1830 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1831 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1832 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1833 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1834 | if (ret != 0) | |
30a6a1a4 | 1835 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1836 | ret); |
1837 | } | |
1838 | } | |
97404f2e | 1839 | |
fe4fda5d MB |
1840 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1841 | bool power, bool connect) | |
1842 | { | |
1843 | /* If a connection is being made or broken then that update | |
1844 | * will have marked the peer dirty, otherwise the widgets are | |
1845 | * not connected and this update has no impact. */ | |
1846 | if (!connect) | |
1847 | return; | |
1848 | ||
1849 | /* If the peer is already in the state we're moving to then we | |
1850 | * won't have an impact on it. */ | |
1851 | if (power != peer->power) | |
75c1f891 | 1852 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1853 | } |
1854 | ||
05623c43 MB |
1855 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1856 | struct list_head *up_list, | |
1857 | struct list_head *down_list) | |
1858 | { | |
db432b41 MB |
1859 | struct snd_soc_dapm_path *path; |
1860 | ||
05623c43 MB |
1861 | if (w->power == power) |
1862 | return; | |
1863 | ||
1864 | trace_snd_soc_dapm_widget_power(w, power); | |
1865 | ||
db432b41 | 1866 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1867 | * also. |
db432b41 | 1868 | */ |
e63bfd45 | 1869 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1870 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1871 | ||
6dd98b0a LPC |
1872 | /* Supplies can't affect their outputs, only their inputs */ |
1873 | if (!w->is_supply) { | |
e63bfd45 | 1874 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1875 | dapm_widget_set_peer_power(path->sink, power, |
1876 | path->connect); | |
db432b41 MB |
1877 | } |
1878 | ||
05623c43 MB |
1879 | if (power) |
1880 | dapm_seq_insert(w, up_list, true); | |
1881 | else | |
1882 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1883 | } |
1884 | ||
7c81beb0 MB |
1885 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1886 | struct list_head *up_list, | |
1887 | struct list_head *down_list) | |
1888 | { | |
7c81beb0 MB |
1889 | int power; |
1890 | ||
1891 | switch (w->id) { | |
1892 | case snd_soc_dapm_pre: | |
1893 | dapm_seq_insert(w, down_list, false); | |
1894 | break; | |
1895 | case snd_soc_dapm_post: | |
1896 | dapm_seq_insert(w, up_list, true); | |
1897 | break; | |
1898 | ||
1899 | default: | |
d805002b | 1900 | power = dapm_widget_power_check(w); |
7c81beb0 | 1901 | |
05623c43 | 1902 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1903 | break; |
1904 | } | |
1905 | } | |
1906 | ||
86dbf2ac LPC |
1907 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1908 | { | |
1909 | if (dapm->idle_bias_off) | |
1910 | return true; | |
1911 | ||
1912 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1913 | case SNDRV_CTL_POWER_D3hot: | |
1914 | case SNDRV_CTL_POWER_D3cold: | |
1915 | return dapm->suspend_bias_off; | |
1916 | default: | |
1917 | break; | |
1918 | } | |
1919 | ||
1920 | return false; | |
1921 | } | |
1922 | ||
2b97eabc RP |
1923 | /* |
1924 | * Scan each dapm widget for complete audio path. | |
1925 | * A complete path is a route that has valid endpoints i.e.:- | |
1926 | * | |
1927 | * o DAC to output pin. | |
c8046000 | 1928 | * o Input pin to ADC. |
2b97eabc RP |
1929 | * o Input pin to Output pin (bypass, sidetone) |
1930 | * o DAC to ADC (loopback). | |
1931 | */ | |
95dd5cd6 | 1932 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1933 | { |
1934 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1935 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1936 | LIST_HEAD(up_list); |
1937 | LIST_HEAD(down_list); | |
2955b47d | 1938 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1939 | enum snd_soc_bias_level bias; |
8e2a990d | 1940 | int ret; |
6d3ddc81 | 1941 | |
f9fa2b18 MB |
1942 | lockdep_assert_held(&card->dapm_mutex); |
1943 | ||
84e90930 MB |
1944 | trace_snd_soc_dapm_start(card); |
1945 | ||
56fba41f | 1946 | list_for_each_entry(d, &card->dapm_list, list) { |
86dbf2ac | 1947 | if (dapm_idle_bias_off(d)) |
497098be MB |
1948 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1949 | else | |
1950 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1951 | } |
7be31be8 | 1952 | |
6c120e19 | 1953 | dapm_reset(card); |
9b8a83b2 | 1954 | |
6d3ddc81 | 1955 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1956 | * lists indicating if they should be powered up or down. We |
1957 | * only check widgets that have been flagged as dirty but note | |
1958 | * that new widgets may be added to the dirty list while we | |
1959 | * iterate. | |
6d3ddc81 | 1960 | */ |
db432b41 | 1961 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1962 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1963 | } |
1964 | ||
f9de6d74 | 1965 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1966 | switch (w->id) { |
1967 | case snd_soc_dapm_pre: | |
1968 | case snd_soc_dapm_post: | |
1969 | /* These widgets always need to be powered */ | |
1970 | break; | |
1971 | default: | |
1972 | list_del_init(&w->dirty); | |
1973 | break; | |
1974 | } | |
db432b41 | 1975 | |
39eb5fd1 | 1976 | if (w->new_power) { |
f9de6d74 MB |
1977 | d = w->dapm; |
1978 | ||
1979 | /* Supplies and micbiases only bring the | |
1980 | * context up to STANDBY as unless something | |
1981 | * else is active and passing audio they | |
afe62367 MB |
1982 | * generally don't require full power. Signal |
1983 | * generators are virtual pins and have no | |
1984 | * power impact themselves. | |
f9de6d74 MB |
1985 | */ |
1986 | switch (w->id) { | |
afe62367 | 1987 | case snd_soc_dapm_siggen: |
da83fea6 | 1988 | case snd_soc_dapm_vmid: |
afe62367 | 1989 | break; |
f9de6d74 | 1990 | case snd_soc_dapm_supply: |
62ea874a | 1991 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 1992 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 1993 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1994 | case snd_soc_dapm_micbias: |
1995 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1996 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1997 | break; | |
1998 | default: | |
1999 | d->target_bias_level = SND_SOC_BIAS_ON; | |
2000 | break; | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | } | |
2005 | ||
85a843c5 MB |
2006 | /* Force all contexts in the card to the same bias state if |
2007 | * they're not ground referenced. | |
2008 | */ | |
56fba41f | 2009 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 2010 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
2011 | if (d->target_bias_level > bias) |
2012 | bias = d->target_bias_level; | |
52ba67bf | 2013 | list_for_each_entry(d, &card->dapm_list, list) |
86dbf2ac | 2014 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 2015 | d->target_bias_level = bias; |
52ba67bf | 2016 | |
de02d078 | 2017 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 2018 | |
17282ba4 XX |
2019 | /* Run card bias changes at first */ |
2020 | dapm_pre_sequence_async(&card->dapm, 0); | |
2021 | /* Run other bias changes in parallel */ | |
2022 | list_for_each_entry(d, &card->dapm_list, list) { | |
e03546dd | 2023 | if (d != &card->dapm && d->bias_level != d->target_bias_level) |
17282ba4 XX |
2024 | async_schedule_domain(dapm_pre_sequence_async, d, |
2025 | &async_domain); | |
2026 | } | |
9d0624a7 | 2027 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 2028 | |
cf1f7c6e | 2029 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 2030 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
2031 | } |
2032 | ||
cf1f7c6e | 2033 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 2034 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
2035 | } |
2036 | ||
6d3ddc81 | 2037 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 2038 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 2039 | |
95dd5cd6 | 2040 | dapm_widget_update(card); |
97404f2e | 2041 | |
6d3ddc81 | 2042 | /* Now power up. */ |
95dd5cd6 | 2043 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 2044 | |
9d0624a7 | 2045 | /* Run all the bias changes in parallel */ |
17282ba4 | 2046 | list_for_each_entry(d, &card->dapm_list, list) { |
e03546dd | 2047 | if (d != &card->dapm && d->bias_level != d->target_bias_level) |
17282ba4 XX |
2048 | async_schedule_domain(dapm_post_sequence_async, d, |
2049 | &async_domain); | |
2050 | } | |
9d0624a7 | 2051 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
2052 | /* Run card bias changes at last */ |
2053 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 2054 | |
8078d87f LG |
2055 | /* do we need to notify any clients that DAPM event is complete */ |
2056 | list_for_each_entry(d, &card->dapm_list, list) { | |
8e2a990d KM |
2057 | if (!d->component) |
2058 | continue; | |
2059 | ||
2060 | ret = snd_soc_component_stream_event(d->component, event); | |
2061 | if (ret < 0) | |
2062 | return ret; | |
8078d87f LG |
2063 | } |
2064 | ||
95dd5cd6 | 2065 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 2066 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 2067 | pop_wait(card->pop_time); |
cb507e7e | 2068 | |
84e90930 MB |
2069 | trace_snd_soc_dapm_done(card); |
2070 | ||
42aa3418 | 2071 | return 0; |
2b97eabc RP |
2072 | } |
2073 | ||
79fb9387 | 2074 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
2075 | static ssize_t dapm_widget_power_read_file(struct file *file, |
2076 | char __user *user_buf, | |
2077 | size_t count, loff_t *ppos) | |
2078 | { | |
2079 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 2080 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 2081 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
2082 | char *buf; |
2083 | int in, out; | |
2084 | ssize_t ret; | |
2085 | struct snd_soc_dapm_path *p = NULL; | |
2086 | ||
2087 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2088 | if (!buf) | |
2089 | return -ENOMEM; | |
2090 | ||
e50b1e06 LPC |
2091 | mutex_lock(&card->dapm_mutex); |
2092 | ||
c1862c8b LPC |
2093 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
2094 | if (w->is_supply) { | |
2095 | in = 0; | |
2096 | out = 0; | |
2097 | } else { | |
6742064a PS |
2098 | in = is_connected_input_ep(w, NULL, NULL); |
2099 | out = is_connected_output_ep(w, NULL, NULL); | |
c1862c8b | 2100 | } |
79fb9387 | 2101 | |
e581e151 | 2102 | ret = scnprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
f13ebada MB |
2103 | w->name, w->power ? "On" : "Off", |
2104 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 2105 | |
d033c36a | 2106 | if (w->reg >= 0) |
e581e151 | 2107 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, |
de9ba98b LPC |
2108 | " - R%d(0x%x) mask 0x%x", |
2109 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a | 2110 | |
e581e151 | 2111 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n"); |
d033c36a | 2112 | |
3eef08ba | 2113 | if (w->sname) |
e581e151 | 2114 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", |
3eef08ba MB |
2115 | w->sname, |
2116 | w->active ? "active" : "inactive"); | |
79fb9387 | 2117 | |
a3423b02 LPC |
2118 | snd_soc_dapm_for_each_direction(dir) { |
2119 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
2120 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
28735af3 | 2121 | if (p->connected && !p->connected(p->source, p->sink)) |
a3423b02 | 2122 | continue; |
215edda3 | 2123 | |
a3423b02 LPC |
2124 | if (!p->connect) |
2125 | continue; | |
215edda3 | 2126 | |
e581e151 | 2127 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
2128 | " %s \"%s\" \"%s\"\n", |
2129 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 2130 | p->name ? p->name : "static", |
a3423b02 LPC |
2131 | p->node[rdir]->name); |
2132 | } | |
79fb9387 MB |
2133 | } |
2134 | ||
e50b1e06 LPC |
2135 | mutex_unlock(&card->dapm_mutex); |
2136 | ||
79fb9387 MB |
2137 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2138 | ||
2139 | kfree(buf); | |
2140 | return ret; | |
2141 | } | |
2142 | ||
2143 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2144 | .open = simple_open, |
79fb9387 | 2145 | .read = dapm_widget_power_read_file, |
6038f373 | 2146 | .llseek = default_llseek, |
79fb9387 MB |
2147 | }; |
2148 | ||
ef49e4fa MB |
2149 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2150 | size_t count, loff_t *ppos) | |
2151 | { | |
2152 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2153 | char *level; | |
2154 | ||
2155 | switch (dapm->bias_level) { | |
2156 | case SND_SOC_BIAS_ON: | |
2157 | level = "On\n"; | |
2158 | break; | |
2159 | case SND_SOC_BIAS_PREPARE: | |
2160 | level = "Prepare\n"; | |
2161 | break; | |
2162 | case SND_SOC_BIAS_STANDBY: | |
2163 | level = "Standby\n"; | |
2164 | break; | |
2165 | case SND_SOC_BIAS_OFF: | |
2166 | level = "Off\n"; | |
2167 | break; | |
2168 | default: | |
a6ed0608 | 2169 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2170 | level = "Unknown\n"; |
2171 | break; | |
2172 | } | |
2173 | ||
2174 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2175 | strlen(level)); | |
2176 | } | |
2177 | ||
2178 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2179 | .open = simple_open, |
ef49e4fa MB |
2180 | .read = dapm_bias_read_file, |
2181 | .llseek = default_llseek, | |
2182 | }; | |
2183 | ||
8eecaf62 LPC |
2184 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2185 | struct dentry *parent) | |
79fb9387 | 2186 | { |
ceaea851 | 2187 | if (!parent || IS_ERR(parent)) |
6553bf06 LPC |
2188 | return; |
2189 | ||
8eecaf62 LPC |
2190 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2191 | ||
fee531d6 GKH |
2192 | debugfs_create_file("bias_level", 0444, dapm->debugfs_dapm, dapm, |
2193 | &dapm_bias_fops); | |
d5d1e0be | 2194 | } |
ef49e4fa | 2195 | |
d5d1e0be LPC |
2196 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2197 | { | |
2198 | struct snd_soc_dapm_context *dapm = w->dapm; | |
79fb9387 | 2199 | |
d5d1e0be LPC |
2200 | if (!dapm->debugfs_dapm || !w->name) |
2201 | return; | |
2202 | ||
fee531d6 GKH |
2203 | debugfs_create_file(w->name, 0444, dapm->debugfs_dapm, w, |
2204 | &dapm_widget_power_fops); | |
79fb9387 | 2205 | } |
d5d1e0be | 2206 | |
6c45e126 LPC |
2207 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2208 | { | |
2209 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
29040d1a | 2210 | dapm->debugfs_dapm = NULL; |
6c45e126 LPC |
2211 | } |
2212 | ||
79fb9387 | 2213 | #else |
8eecaf62 LPC |
2214 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2215 | struct dentry *parent) | |
79fb9387 MB |
2216 | { |
2217 | } | |
d5d1e0be LPC |
2218 | |
2219 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2220 | { | |
2221 | } | |
2222 | ||
6c45e126 LPC |
2223 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2224 | { | |
2225 | } | |
2226 | ||
79fb9387 MB |
2227 | #endif |
2228 | ||
4a201948 LPC |
2229 | /* |
2230 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2231 | * @path: The path to update | |
2232 | * @connect: The new connect state of the path. True if the path is connected, | |
c8046000 | 2233 | * false if it is disconnected. |
4a201948 LPC |
2234 | * @reason: The reason why the path changed (for debugging only) |
2235 | */ | |
2236 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2237 | bool connect, const char *reason) | |
2238 | { | |
2239 | if (path->connect == connect) | |
2240 | return; | |
2241 | ||
2242 | path->connect = connect; | |
2243 | dapm_mark_dirty(path->source, reason); | |
2244 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2245 | dapm_path_invalidate(path); |
4a201948 LPC |
2246 | } |
2247 | ||
2b97eabc | 2248 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2249 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2250 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2251 | { |
2252 | struct snd_soc_dapm_path *path; | |
2253 | int found = 0; | |
4a201948 | 2254 | bool connect; |
2b97eabc | 2255 | |
f9fa2b18 MB |
2256 | lockdep_assert_held(&card->dapm_mutex); |
2257 | ||
2b97eabc | 2258 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2259 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2260 | found = 1; |
2261 | /* we now need to match the string in the enum to the path */ | |
c3456a4b | 2262 | if (e && !(strcmp(path->name, e->texts[mux]))) |
4a201948 LPC |
2263 | connect = true; |
2264 | else | |
2265 | connect = false; | |
2266 | ||
2267 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2268 | } |
2269 | ||
ce6cfaf1 | 2270 | if (found) |
95dd5cd6 | 2271 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2272 | |
618dae11 | 2273 | return found; |
2b97eabc | 2274 | } |
4edbb345 | 2275 | |
ce6cfaf1 | 2276 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2277 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2278 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2279 | { |
ce6cfaf1 | 2280 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2281 | int ret; |
2282 | ||
3cd04343 | 2283 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2284 | card->update = update; |
95dd5cd6 | 2285 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2286 | card->update = NULL; |
4edbb345 | 2287 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2288 | if (ret > 0) |
c3f48ae6 | 2289 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2290 | return ret; |
2291 | } | |
40f02cd9 | 2292 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2293 | |
1b075e3f | 2294 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2295 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
e7aa450f CYT |
2296 | struct snd_kcontrol *kcontrol, |
2297 | int connect, int rconnect) | |
2b97eabc RP |
2298 | { |
2299 | struct snd_soc_dapm_path *path; | |
2300 | int found = 0; | |
2301 | ||
f9fa2b18 MB |
2302 | lockdep_assert_held(&card->dapm_mutex); |
2303 | ||
2b97eabc | 2304 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2305 | dapm_kcontrol_for_each_path(path, kcontrol) { |
e7aa450f CYT |
2306 | /* |
2307 | * Ideally this function should support any number of | |
2308 | * paths and channels. But since kcontrols only come | |
2309 | * in mono and stereo variants, we are limited to 2 | |
2310 | * channels. | |
2311 | * | |
2312 | * The following code assumes for stereo controls the | |
2313 | * first path (when 'found == 0') is the left channel, | |
2314 | * and all remaining paths (when 'found == 1') are the | |
2315 | * right channel. | |
2316 | * | |
2317 | * A stereo control is signified by a valid 'rconnect' | |
2318 | * value, either 0 for unconnected, or >= 0 for connected. | |
2319 | * This is chosen instead of using snd_soc_volsw_is_stereo, | |
2320 | * so that the behavior of snd_soc_dapm_mixer_update_power | |
2321 | * doesn't change even when the kcontrol passed in is | |
2322 | * stereo. | |
2323 | * | |
2324 | * It passes 'connect' as the path connect status for | |
2325 | * the left channel, and 'rconnect' for the right | |
2326 | * channel. | |
2327 | */ | |
2328 | if (found && rconnect >= 0) | |
2329 | soc_dapm_connect_path(path, rconnect, "mixer update"); | |
2330 | else | |
2331 | soc_dapm_connect_path(path, connect, "mixer update"); | |
2b97eabc | 2332 | found = 1; |
2b97eabc RP |
2333 | } |
2334 | ||
ce6cfaf1 | 2335 | if (found) |
95dd5cd6 | 2336 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2337 | |
618dae11 | 2338 | return found; |
2b97eabc | 2339 | } |
4edbb345 | 2340 | |
ce6cfaf1 | 2341 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2342 | struct snd_kcontrol *kcontrol, int connect, |
2343 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2344 | { |
ce6cfaf1 | 2345 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2346 | int ret; |
2347 | ||
3cd04343 | 2348 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2349 | card->update = update; |
e7aa450f | 2350 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, -1); |
564c6504 | 2351 | card->update = NULL; |
4edbb345 | 2352 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2353 | if (ret > 0) |
c3f48ae6 | 2354 | soc_dpcm_runtime_update(card); |
4edbb345 LG |
2355 | return ret; |
2356 | } | |
40f02cd9 | 2357 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2358 | |
b3c25fb7 LPC |
2359 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2360 | char *buf) | |
2b97eabc | 2361 | { |
b3c25fb7 | 2362 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2363 | struct snd_soc_dapm_widget *w; |
2364 | int count = 0; | |
2365 | char *state = "not set"; | |
2366 | ||
47325078 MB |
2367 | /* card won't be set for the dummy component, as a spot fix |
2368 | * we're checking for that case specifically here but in future | |
2369 | * we will ensure that the dummy component looks like others. | |
2370 | */ | |
2371 | if (!cmpnt->card) | |
2372 | return 0; | |
2373 | ||
b3c25fb7 LPC |
2374 | list_for_each_entry(w, &cmpnt->card->widgets, list) { |
2375 | if (w->dapm != dapm) | |
97c866de | 2376 | continue; |
2b97eabc | 2377 | |
c8046000 | 2378 | /* only display widgets that burn power */ |
2b97eabc RP |
2379 | switch (w->id) { |
2380 | case snd_soc_dapm_hp: | |
2381 | case snd_soc_dapm_mic: | |
2382 | case snd_soc_dapm_spk: | |
2383 | case snd_soc_dapm_line: | |
2384 | case snd_soc_dapm_micbias: | |
2385 | case snd_soc_dapm_dac: | |
2386 | case snd_soc_dapm_adc: | |
2387 | case snd_soc_dapm_pga: | |
882c8b4a | 2388 | case snd_soc_dapm_effect: |
d88429a6 | 2389 | case snd_soc_dapm_out_drv: |
2b97eabc | 2390 | case snd_soc_dapm_mixer: |
ca9c1aae | 2391 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2392 | case snd_soc_dapm_supply: |
62ea874a | 2393 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 2394 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 2395 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2396 | if (w->name) |
2397 | count += sprintf(buf + count, "%s: %s\n", | |
2398 | w->name, w->power ? "On":"Off"); | |
2399 | break; | |
2400 | default: | |
2401 | break; | |
2402 | } | |
2403 | } | |
2404 | ||
b3c25fb7 | 2405 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2406 | case SND_SOC_BIAS_ON: |
2407 | state = "On"; | |
2b97eabc | 2408 | break; |
0be9898a MB |
2409 | case SND_SOC_BIAS_PREPARE: |
2410 | state = "Prepare"; | |
2b97eabc | 2411 | break; |
0be9898a MB |
2412 | case SND_SOC_BIAS_STANDBY: |
2413 | state = "Standby"; | |
2b97eabc | 2414 | break; |
0be9898a MB |
2415 | case SND_SOC_BIAS_OFF: |
2416 | state = "Off"; | |
2b97eabc RP |
2417 | break; |
2418 | } | |
2419 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2420 | ||
2421 | return count; | |
2422 | } | |
2423 | ||
44ba2641 BC |
2424 | /* show dapm widget status in sys fs */ |
2425 | static ssize_t dapm_widget_show(struct device *dev, | |
2426 | struct device_attribute *attr, char *buf) | |
2427 | { | |
2428 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
0b7990e3 | 2429 | struct snd_soc_dai *codec_dai; |
44ba2641 BC |
2430 | int i, count = 0; |
2431 | ||
e50b1e06 LPC |
2432 | mutex_lock(&rtd->card->dapm_mutex); |
2433 | ||
0b7990e3 KM |
2434 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2435 | struct snd_soc_component *cmpnt = codec_dai->component; | |
b3c25fb7 LPC |
2436 | |
2437 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2438 | } |
2439 | ||
e50b1e06 LPC |
2440 | mutex_unlock(&rtd->card->dapm_mutex); |
2441 | ||
44ba2641 BC |
2442 | return count; |
2443 | } | |
2444 | ||
c828a892 | 2445 | static DEVICE_ATTR_RO(dapm_widget); |
2b97eabc | 2446 | |
d29697dc TI |
2447 | struct attribute *soc_dapm_dev_attrs[] = { |
2448 | &dev_attr_dapm_widget.attr, | |
2449 | NULL | |
2450 | }; | |
2b97eabc | 2451 | |
8872293f LPC |
2452 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2453 | { | |
a3423b02 LPC |
2454 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2455 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2456 | list_del(&path->list_kcontrol); |
8872293f | 2457 | list_del(&path->list); |
8872293f LPC |
2458 | kfree(path); |
2459 | } | |
2460 | ||
b97e2698 LPC |
2461 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2462 | { | |
2463 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2464 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2465 | |
2466 | list_del(&w->list); | |
2467 | /* | |
2468 | * remove source and sink paths associated to this widget. | |
2469 | * While removing the path, remove reference to it from both | |
2470 | * source and sink widgets so that path is removed only once. | |
2471 | */ | |
a3423b02 LPC |
2472 | snd_soc_dapm_for_each_direction(dir) { |
2473 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2474 | dapm_free_path(p); | |
2475 | } | |
b97e2698 LPC |
2476 | |
2477 | kfree(w->kcontrols); | |
48068961 | 2478 | kfree_const(w->name); |
199ed3e8 | 2479 | kfree_const(w->sname); |
b97e2698 LPC |
2480 | kfree(w); |
2481 | } | |
2482 | ||
fd589a1b JS |
2483 | void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm) |
2484 | { | |
2485 | dapm->path_sink_cache.widget = NULL; | |
2486 | dapm->path_source_cache.widget = NULL; | |
2487 | } | |
2488 | ||
2b97eabc | 2489 | /* free all dapm widgets and resources */ |
ce6120cc | 2490 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2491 | { |
2492 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2493 | |
97c866de JN |
2494 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2495 | if (w->dapm != dapm) | |
2496 | continue; | |
b97e2698 | 2497 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2498 | } |
fd589a1b | 2499 | snd_soc_dapm_reset_cache(dapm); |
2b97eabc RP |
2500 | } |
2501 | ||
91a5fca4 LPC |
2502 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2503 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2504 | bool search_other_contexts) | |
a5302181 LG |
2505 | { |
2506 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2507 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2508 | |
97c866de | 2509 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2510 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2511 | if (w->dapm == dapm) |
2512 | return w; | |
2513 | else | |
2514 | fallback = w; | |
a5302181 LG |
2515 | } |
2516 | } | |
2517 | ||
91a5fca4 LPC |
2518 | if (search_other_contexts) |
2519 | return fallback; | |
2520 | ||
2521 | return NULL; | |
2522 | } | |
2523 | ||
2524 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2525 | const char *pin, int status) | |
2526 | { | |
2527 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2528 | ||
f9fa2b18 MB |
2529 | dapm_assert_locked(dapm); |
2530 | ||
91a5fca4 | 2531 | if (!w) { |
30a6a1a4 | 2532 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2533 | return -EINVAL; |
0d86733c MB |
2534 | } |
2535 | ||
92a99ea4 | 2536 | if (w->connected != status) { |
1a8b2d9d | 2537 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2538 | dapm_widget_invalidate_input_paths(w); |
2539 | dapm_widget_invalidate_output_paths(w); | |
2540 | } | |
1a8b2d9d | 2541 | |
91a5fca4 LPC |
2542 | w->connected = status; |
2543 | if (status == 0) | |
2544 | w->force = 0; | |
2545 | ||
2546 | return 0; | |
a5302181 LG |
2547 | } |
2548 | ||
2b97eabc | 2549 | /** |
3eb29dfb | 2550 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2551 | * @dapm: DAPM context |
2b97eabc RP |
2552 | * |
2553 | * Walks all dapm audio paths and powers widgets according to their | |
2554 | * stream or path usage. | |
2555 | * | |
3eb29dfb CK |
2556 | * Requires external locking. |
2557 | * | |
2b97eabc RP |
2558 | * Returns 0 for success. |
2559 | */ | |
3eb29dfb | 2560 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2561 | { |
4f4c0072 MB |
2562 | /* |
2563 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2564 | * silly DAPM runs during card startup. | |
2565 | */ | |
2566 | if (!dapm->card || !dapm->card->instantiated) | |
2567 | return 0; | |
2568 | ||
3eb29dfb CK |
2569 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2570 | } | |
2571 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2572 | ||
2573 | /** | |
2574 | * snd_soc_dapm_sync - scan and power dapm paths | |
2575 | * @dapm: DAPM context | |
2576 | * | |
2577 | * Walks all dapm audio paths and powers widgets according to their | |
2578 | * stream or path usage. | |
2579 | * | |
2580 | * Returns 0 for success. | |
2581 | */ | |
2582 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2583 | { | |
2584 | int ret; | |
2585 | ||
3cd04343 | 2586 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2587 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2588 | mutex_unlock(&dapm->card->dapm_mutex); |
2589 | return ret; | |
2b97eabc | 2590 | } |
a5302181 | 2591 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2592 | |
078a85f2 CK |
2593 | static int dapm_update_dai_chan(struct snd_soc_dapm_path *p, |
2594 | struct snd_soc_dapm_widget *w, | |
2595 | int channels) | |
2596 | { | |
2597 | switch (w->id) { | |
2598 | case snd_soc_dapm_aif_out: | |
2599 | case snd_soc_dapm_aif_in: | |
2600 | break; | |
2601 | default: | |
2602 | return 0; | |
2603 | } | |
2604 | ||
2605 | dev_dbg(w->dapm->dev, "%s DAI route %s -> %s\n", | |
2606 | w->channel < channels ? "Connecting" : "Disconnecting", | |
2607 | p->source->name, p->sink->name); | |
2608 | ||
2609 | if (w->channel < channels) | |
2610 | soc_dapm_connect_path(p, true, "dai update"); | |
2611 | else | |
2612 | soc_dapm_connect_path(p, false, "dai update"); | |
2613 | ||
2614 | return 0; | |
2615 | } | |
2616 | ||
2617 | static int dapm_update_dai_unlocked(struct snd_pcm_substream *substream, | |
2618 | struct snd_pcm_hw_params *params, | |
2619 | struct snd_soc_dai *dai) | |
2620 | { | |
2621 | int dir = substream->stream; | |
2622 | int channels = params_channels(params); | |
2623 | struct snd_soc_dapm_path *p; | |
2624 | struct snd_soc_dapm_widget *w; | |
2625 | int ret; | |
2626 | ||
2627 | if (dir == SNDRV_PCM_STREAM_PLAYBACK) | |
2628 | w = dai->playback_widget; | |
2629 | else | |
2630 | w = dai->capture_widget; | |
2631 | ||
cf17a5ff CK |
2632 | if (!w) |
2633 | return 0; | |
2634 | ||
078a85f2 CK |
2635 | dev_dbg(dai->dev, "Update DAI routes for %s %s\n", dai->name, |
2636 | dir == SNDRV_PCM_STREAM_PLAYBACK ? "playback" : "capture"); | |
2637 | ||
2638 | snd_soc_dapm_widget_for_each_sink_path(w, p) { | |
2639 | ret = dapm_update_dai_chan(p, p->sink, channels); | |
2640 | if (ret < 0) | |
2641 | return ret; | |
2642 | } | |
2643 | ||
2644 | snd_soc_dapm_widget_for_each_source_path(w, p) { | |
2645 | ret = dapm_update_dai_chan(p, p->source, channels); | |
2646 | if (ret < 0) | |
2647 | return ret; | |
2648 | } | |
2649 | ||
2650 | return 0; | |
2651 | } | |
2652 | ||
2653 | int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream, | |
2654 | struct snd_pcm_hw_params *params, | |
2655 | struct snd_soc_dai *dai) | |
2656 | { | |
2657 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2658 | int ret; | |
2659 | ||
2660 | mutex_lock_nested(&rtd->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
2661 | ret = dapm_update_dai_unlocked(substream, params, dai); | |
2662 | mutex_unlock(&rtd->card->dapm_mutex); | |
2663 | ||
2664 | return ret; | |
2665 | } | |
2666 | EXPORT_SYMBOL_GPL(snd_soc_dapm_update_dai); | |
2667 | ||
6dd98b0a LPC |
2668 | /* |
2669 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2670 | * @w: The widget for which to update the flags | |
2671 | * | |
2672 | * Some widgets have a dynamic category which depends on which neighbors they | |
2673 | * are connected to. This function update the category for these widgets. | |
2674 | * | |
2675 | * This function must be called whenever a path is added or removed to a widget. | |
2676 | */ | |
2677 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2678 | { | |
a3423b02 | 2679 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2680 | struct snd_soc_dapm_path *p; |
a3423b02 | 2681 | unsigned int ep; |
6dd98b0a LPC |
2682 | |
2683 | switch (w->id) { | |
2684 | case snd_soc_dapm_input: | |
c8046000 | 2685 | /* On a fully routed card an input is never a source */ |
86d75003 | 2686 | if (w->dapm->card->fully_routed) |
a3423b02 LPC |
2687 | return; |
2688 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2689 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2690 | if (p->source->id == snd_soc_dapm_micbias || |
2691 | p->source->id == snd_soc_dapm_mic || | |
2692 | p->source->id == snd_soc_dapm_line || | |
2693 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2694 | ep = 0; |
6dd98b0a LPC |
2695 | break; |
2696 | } | |
2697 | } | |
2698 | break; | |
2699 | case snd_soc_dapm_output: | |
86d75003 LPC |
2700 | /* On a fully routed card a output is never a sink */ |
2701 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2702 | return; |
2703 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2704 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2705 | if (p->sink->id == snd_soc_dapm_spk || |
2706 | p->sink->id == snd_soc_dapm_hp || | |
2707 | p->sink->id == snd_soc_dapm_line || | |
2708 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2709 | ep = 0; |
6dd98b0a LPC |
2710 | break; |
2711 | } | |
2712 | } | |
2713 | break; | |
2714 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2715 | ep = 0; |
2716 | snd_soc_dapm_for_each_direction(dir) { | |
2717 | if (!list_empty(&w->edges[dir])) | |
2718 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2719 | } | |
6dd98b0a LPC |
2720 | break; |
2721 | default: | |
a3423b02 | 2722 | return; |
6dd98b0a | 2723 | } |
a3423b02 LPC |
2724 | |
2725 | w->is_ep = ep; | |
6dd98b0a LPC |
2726 | } |
2727 | ||
d714f97c LPC |
2728 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2729 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2730 | const char *control) | |
2731 | { | |
2732 | bool dynamic_source = false; | |
2733 | bool dynamic_sink = false; | |
2734 | ||
2735 | if (!control) | |
2736 | return 0; | |
2737 | ||
2738 | switch (source->id) { | |
2739 | case snd_soc_dapm_demux: | |
2740 | dynamic_source = true; | |
2741 | break; | |
2742 | default: | |
2743 | break; | |
2744 | } | |
2745 | ||
2746 | switch (sink->id) { | |
2747 | case snd_soc_dapm_mux: | |
2748 | case snd_soc_dapm_switch: | |
2749 | case snd_soc_dapm_mixer: | |
2750 | case snd_soc_dapm_mixer_named_ctl: | |
2751 | dynamic_sink = true; | |
2752 | break; | |
2753 | default: | |
2754 | break; | |
2755 | } | |
2756 | ||
2757 | if (dynamic_source && dynamic_sink) { | |
2758 | dev_err(dapm->dev, | |
2759 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2760 | source->name, control, sink->name); | |
2761 | return -EINVAL; | |
2762 | } else if (!dynamic_source && !dynamic_sink) { | |
2763 | dev_err(dapm->dev, | |
2764 | "Control not supported for path %s -> [%s] -> %s\n", | |
2765 | source->name, control, sink->name); | |
2766 | return -EINVAL; | |
2767 | } | |
2768 | ||
2769 | return 0; | |
2770 | } | |
2771 | ||
2553628e LPC |
2772 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2773 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2774 | const char *control, | |
2775 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2776 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2777 | { |
a3423b02 LPC |
2778 | struct snd_soc_dapm_widget *widgets[2]; |
2779 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2780 | struct snd_soc_dapm_path *path; |
2553628e | 2781 | int ret; |
2b97eabc | 2782 | |
e409dfbf LPC |
2783 | if (wsink->is_supply && !wsource->is_supply) { |
2784 | dev_err(dapm->dev, | |
2785 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2786 | wsource->name, wsink->name); | |
2787 | return -EINVAL; | |
2788 | } | |
2789 | ||
2790 | if (connected && !wsource->is_supply) { | |
2791 | dev_err(dapm->dev, | |
2792 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2793 | wsource->name, wsink->name); | |
2794 | return -EINVAL; | |
2795 | } | |
2796 | ||
2797 | if (wsource->is_supply && control) { | |
2798 | dev_err(dapm->dev, | |
2799 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2800 | wsource->name, control, wsink->name); | |
2801 | return -EINVAL; | |
2802 | } | |
2803 | ||
d714f97c LPC |
2804 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2805 | if (ret) | |
2806 | return ret; | |
2807 | ||
2b97eabc RP |
2808 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2809 | if (!path) | |
2810 | return -ENOMEM; | |
2811 | ||
a3423b02 LPC |
2812 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2813 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2814 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2815 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2816 | ||
2553628e | 2817 | path->connected = connected; |
2b97eabc | 2818 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2819 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2820 | |
c1862c8b LPC |
2821 | if (wsource->is_supply || wsink->is_supply) |
2822 | path->is_supply = 1; | |
2823 | ||
2b97eabc RP |
2824 | /* connect static paths */ |
2825 | if (control == NULL) { | |
2b97eabc | 2826 | path->connect = 1; |
5fe5b767 | 2827 | } else { |
d714f97c LPC |
2828 | switch (wsource->id) { |
2829 | case snd_soc_dapm_demux: | |
2830 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2831 | if (ret) | |
2832 | goto err; | |
2833 | break; | |
2834 | default: | |
2835 | break; | |
2836 | } | |
2837 | ||
5fe5b767 LPC |
2838 | switch (wsink->id) { |
2839 | case snd_soc_dapm_mux: | |
d714f97c | 2840 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2841 | if (ret != 0) |
2842 | goto err; | |
2843 | break; | |
2844 | case snd_soc_dapm_switch: | |
2845 | case snd_soc_dapm_mixer: | |
2846 | case snd_soc_dapm_mixer_named_ctl: | |
2847 | ret = dapm_connect_mixer(dapm, path, control); | |
2848 | if (ret != 0) | |
2849 | goto err; | |
2850 | break; | |
2851 | default: | |
d714f97c | 2852 | break; |
5fe5b767 | 2853 | } |
2b97eabc | 2854 | } |
fabd0384 | 2855 | |
5fe5b767 | 2856 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2857 | snd_soc_dapm_for_each_direction(dir) |
2858 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2859 | |
a3423b02 LPC |
2860 | snd_soc_dapm_for_each_direction(dir) { |
2861 | dapm_update_widget_flags(widgets[dir]); | |
2862 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2863 | } | |
5fe5b767 | 2864 | |
92a99ea4 LPC |
2865 | if (dapm->card->instantiated && path->connect) |
2866 | dapm_path_invalidate(path); | |
2867 | ||
2b97eabc | 2868 | return 0; |
2553628e LPC |
2869 | err: |
2870 | kfree(path); | |
2871 | return ret; | |
2872 | } | |
2b97eabc | 2873 | |
2553628e | 2874 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2875 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2876 | { |
2877 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2878 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2879 | const char *sink; | |
2880 | const char *source; | |
2881 | char prefixed_sink[80]; | |
2882 | char prefixed_source[80]; | |
94f99c87 | 2883 | const char *prefix; |
411db2ab ZJ |
2884 | unsigned int sink_ref = 0; |
2885 | unsigned int source_ref = 0; | |
2553628e LPC |
2886 | int ret; |
2887 | ||
94f99c87 LPC |
2888 | prefix = soc_dapm_prefix(dapm); |
2889 | if (prefix) { | |
2553628e | 2890 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2891 | prefix, route->sink); |
2553628e LPC |
2892 | sink = prefixed_sink; |
2893 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2894 | prefix, route->source); |
2553628e LPC |
2895 | source = prefixed_source; |
2896 | } else { | |
2897 | sink = route->sink; | |
2898 | source = route->source; | |
2899 | } | |
2900 | ||
45a110a1 CK |
2901 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2902 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2903 | ||
2904 | if (wsink && wsource) | |
2905 | goto skip_search; | |
2906 | ||
2553628e LPC |
2907 | /* |
2908 | * find src and dest widgets over all widgets but favor a widget from | |
2909 | * current DAPM context | |
2910 | */ | |
2911 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2912 | if (!wsink && !(strcmp(w->name, sink))) { | |
2913 | wtsink = w; | |
70c75109 | 2914 | if (w->dapm == dapm) { |
2553628e | 2915 | wsink = w; |
70c75109 CK |
2916 | if (wsource) |
2917 | break; | |
2918 | } | |
411db2ab ZJ |
2919 | sink_ref++; |
2920 | if (sink_ref > 1) | |
2921 | dev_warn(dapm->dev, | |
2922 | "ASoC: sink widget %s overwritten\n", | |
2923 | w->name); | |
2553628e LPC |
2924 | continue; |
2925 | } | |
2926 | if (!wsource && !(strcmp(w->name, source))) { | |
2927 | wtsource = w; | |
70c75109 | 2928 | if (w->dapm == dapm) { |
2553628e | 2929 | wsource = w; |
70c75109 CK |
2930 | if (wsink) |
2931 | break; | |
2932 | } | |
411db2ab ZJ |
2933 | source_ref++; |
2934 | if (source_ref > 1) | |
2935 | dev_warn(dapm->dev, | |
2936 | "ASoC: source widget %s overwritten\n", | |
2937 | w->name); | |
2553628e LPC |
2938 | } |
2939 | } | |
2940 | /* use widget from another DAPM context if not found from this */ | |
2941 | if (!wsink) | |
2942 | wsink = wtsink; | |
2943 | if (!wsource) | |
2944 | wsource = wtsource; | |
2945 | ||
2946 | if (wsource == NULL) { | |
2947 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2948 | route->source); | |
2949 | return -ENODEV; | |
2950 | } | |
2951 | if (wsink == NULL) { | |
2952 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2953 | route->sink); | |
2954 | return -ENODEV; | |
2955 | } | |
2956 | ||
45a110a1 CK |
2957 | skip_search: |
2958 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2959 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2960 | ||
2553628e LPC |
2961 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2962 | route->connected); | |
2963 | if (ret) | |
2964 | goto err; | |
2965 | ||
2966 | return 0; | |
2b97eabc | 2967 | err: |
30a6a1a4 | 2968 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2969 | source, route->control, sink); |
2b97eabc RP |
2970 | return ret; |
2971 | } | |
105f1c28 | 2972 | |
efcc3c61 MB |
2973 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2974 | const struct snd_soc_dapm_route *route) | |
2975 | { | |
6dd98b0a | 2976 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2977 | struct snd_soc_dapm_path *path, *p; |
2978 | const char *sink; | |
2979 | const char *source; | |
2980 | char prefixed_sink[80]; | |
2981 | char prefixed_source[80]; | |
94f99c87 | 2982 | const char *prefix; |
efcc3c61 MB |
2983 | |
2984 | if (route->control) { | |
2985 | dev_err(dapm->dev, | |
30a6a1a4 | 2986 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2987 | return -EINVAL; |
2988 | } | |
2989 | ||
94f99c87 LPC |
2990 | prefix = soc_dapm_prefix(dapm); |
2991 | if (prefix) { | |
efcc3c61 | 2992 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2993 | prefix, route->sink); |
efcc3c61 MB |
2994 | sink = prefixed_sink; |
2995 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2996 | prefix, route->source); |
efcc3c61 MB |
2997 | source = prefixed_source; |
2998 | } else { | |
2999 | sink = route->sink; | |
3000 | source = route->source; | |
3001 | } | |
3002 | ||
3003 | path = NULL; | |
3004 | list_for_each_entry(p, &dapm->card->paths, list) { | |
3005 | if (strcmp(p->source->name, source) != 0) | |
3006 | continue; | |
3007 | if (strcmp(p->sink->name, sink) != 0) | |
3008 | continue; | |
3009 | path = p; | |
3010 | break; | |
3011 | } | |
3012 | ||
3013 | if (path) { | |
6dd98b0a LPC |
3014 | wsource = path->source; |
3015 | wsink = path->sink; | |
3016 | ||
3017 | dapm_mark_dirty(wsource, "Route removed"); | |
3018 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
3019 | if (path->connect) |
3020 | dapm_path_invalidate(path); | |
efcc3c61 | 3021 | |
8872293f | 3022 | dapm_free_path(path); |
6dd98b0a LPC |
3023 | |
3024 | /* Update any path related flags */ | |
3025 | dapm_update_widget_flags(wsource); | |
3026 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 3027 | } else { |
30a6a1a4 | 3028 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
3029 | source, sink); |
3030 | } | |
3031 | ||
3032 | return 0; | |
3033 | } | |
3034 | ||
105f1c28 MB |
3035 | /** |
3036 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 3037 | * @dapm: DAPM context |
105f1c28 MB |
3038 | * @route: audio routes |
3039 | * @num: number of routes | |
3040 | * | |
3041 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
3042 | * the widget receiving the audio signal, whilst the source is the sender | |
3043 | * of the audio signal. | |
3044 | * | |
3045 | * Returns 0 for success else error. On error all resources can be freed | |
3046 | * with a call to snd_soc_card_free(). | |
3047 | */ | |
ce6120cc | 3048 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
3049 | const struct snd_soc_dapm_route *route, int num) |
3050 | { | |
62d4a4b9 | 3051 | int i, r, ret = 0; |
105f1c28 | 3052 | |
f19c181f | 3053 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
105f1c28 | 3054 | for (i = 0; i < num; i++) { |
a4e9154c | 3055 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 3056 | if (r < 0) { |
30a6a1a4 LG |
3057 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
3058 | route->source, | |
3059 | route->control ? route->control : "direct", | |
3060 | route->sink); | |
62d4a4b9 | 3061 | ret = r; |
105f1c28 MB |
3062 | } |
3063 | route++; | |
3064 | } | |
a73fb2df | 3065 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 3066 | |
60884c27 | 3067 | return ret; |
105f1c28 MB |
3068 | } |
3069 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
3070 | ||
efcc3c61 MB |
3071 | /** |
3072 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
3073 | * @dapm: DAPM context | |
3074 | * @route: audio routes | |
3075 | * @num: number of routes | |
3076 | * | |
3077 | * Removes routes from the DAPM context. | |
3078 | */ | |
3079 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
3080 | const struct snd_soc_dapm_route *route, int num) | |
3081 | { | |
e066ea22 | 3082 | int i; |
efcc3c61 | 3083 | |
f19c181f | 3084 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
efcc3c61 MB |
3085 | for (i = 0; i < num; i++) { |
3086 | snd_soc_dapm_del_route(dapm, route); | |
3087 | route++; | |
3088 | } | |
3089 | mutex_unlock(&dapm->card->dapm_mutex); | |
3090 | ||
e066ea22 | 3091 | return 0; |
efcc3c61 MB |
3092 | } |
3093 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
3094 | ||
bf3a9e13 MB |
3095 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
3096 | const struct snd_soc_dapm_route *route) | |
3097 | { | |
3098 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
3099 | route->source, | |
3100 | true); | |
3101 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
3102 | route->sink, | |
3103 | true); | |
3104 | struct snd_soc_dapm_path *path; | |
3105 | int count = 0; | |
3106 | ||
3107 | if (!source) { | |
30a6a1a4 | 3108 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
3109 | route->source); |
3110 | return -ENODEV; | |
3111 | } | |
3112 | ||
3113 | if (!sink) { | |
30a6a1a4 | 3114 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
3115 | route->sink); |
3116 | return -ENODEV; | |
3117 | } | |
3118 | ||
3119 | if (route->control || route->connected) | |
30a6a1a4 | 3120 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
3121 | route->source, route->sink); |
3122 | ||
e63bfd45 | 3123 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
3124 | if (path->sink == sink) { |
3125 | path->weak = 1; | |
3126 | count++; | |
3127 | } | |
3128 | } | |
3129 | ||
3130 | if (count == 0) | |
30a6a1a4 | 3131 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
3132 | route->source, route->sink); |
3133 | if (count > 1) | |
30a6a1a4 | 3134 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
3135 | count, route->source, route->sink); |
3136 | ||
3137 | return 0; | |
3138 | } | |
3139 | ||
3140 | /** | |
3141 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
3142 | * @dapm: DAPM context | |
3143 | * @route: audio routes | |
3144 | * @num: number of routes | |
3145 | * | |
3146 | * Mark existing routes matching those specified in the passed array | |
3147 | * as being weak, meaning that they are ignored for the purpose of | |
3148 | * power decisions. The main intended use case is for sidetone paths | |
3149 | * which couple audio between other independent paths if they are both | |
3150 | * active in order to make the combination work better at the user | |
3151 | * level but which aren't intended to be "used". | |
3152 | * | |
3153 | * Note that CODEC drivers should not use this as sidetone type paths | |
3154 | * can frequently also be used as bypass paths. | |
3155 | */ | |
3156 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
3157 | const struct snd_soc_dapm_route *route, int num) | |
3158 | { | |
3159 | int i, err; | |
3160 | int ret = 0; | |
3161 | ||
a73fb2df | 3162 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
3163 | for (i = 0; i < num; i++) { |
3164 | err = snd_soc_dapm_weak_route(dapm, route); | |
3165 | if (err) | |
3166 | ret = err; | |
3167 | route++; | |
3168 | } | |
a73fb2df | 3169 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
3170 | |
3171 | return ret; | |
3172 | } | |
3173 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
3174 | ||
2b97eabc RP |
3175 | /** |
3176 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 3177 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
3178 | * |
3179 | * Checks the codec for any new dapm widgets and creates them if found. | |
3180 | * | |
3181 | * Returns 0 for success. | |
3182 | */ | |
824ef826 | 3183 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
3184 | { |
3185 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 3186 | unsigned int val; |
2b97eabc | 3187 | |
95dd5cd6 | 3188 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 3189 | |
95dd5cd6 | 3190 | list_for_each_entry(w, &card->widgets, list) |
2b97eabc RP |
3191 | { |
3192 | if (w->new) | |
3193 | continue; | |
3194 | ||
fad59888 | 3195 | if (w->num_kcontrols) { |
6396bb22 | 3196 | w->kcontrols = kcalloc(w->num_kcontrols, |
fad59888 SW |
3197 | sizeof(struct snd_kcontrol *), |
3198 | GFP_KERNEL); | |
a73fb2df | 3199 | if (!w->kcontrols) { |
95dd5cd6 | 3200 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 3201 | return -ENOMEM; |
a73fb2df | 3202 | } |
fad59888 SW |
3203 | } |
3204 | ||
2b97eabc RP |
3205 | switch(w->id) { |
3206 | case snd_soc_dapm_switch: | |
3207 | case snd_soc_dapm_mixer: | |
ca9c1aae | 3208 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 3209 | dapm_new_mixer(w); |
2b97eabc RP |
3210 | break; |
3211 | case snd_soc_dapm_mux: | |
d714f97c | 3212 | case snd_soc_dapm_demux: |
4b80b8c2 | 3213 | dapm_new_mux(w); |
2b97eabc | 3214 | break; |
2b97eabc | 3215 | case snd_soc_dapm_pga: |
882c8b4a | 3216 | case snd_soc_dapm_effect: |
d88429a6 | 3217 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 3218 | dapm_new_pga(w); |
2b97eabc | 3219 | break; |
c6615082 NO |
3220 | case snd_soc_dapm_dai_link: |
3221 | dapm_new_dai_link(w); | |
3222 | break; | |
7ca3a18b | 3223 | default: |
2b97eabc RP |
3224 | break; |
3225 | } | |
b66a70d5 MB |
3226 | |
3227 | /* Read the initial power state from the device */ | |
3228 | if (w->reg >= 0) { | |
ce0fc93a | 3229 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 3230 | val = val >> w->shift; |
de9ba98b LPC |
3231 | val &= w->mask; |
3232 | if (val == w->on_val) | |
b66a70d5 MB |
3233 | w->power = 1; |
3234 | } | |
3235 | ||
2b97eabc | 3236 | w->new = 1; |
d5d1e0be | 3237 | |
7508b12a | 3238 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 3239 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
3240 | } |
3241 | ||
95dd5cd6 LPC |
3242 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
3243 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
3244 | return 0; |
3245 | } | |
3246 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
3247 | ||
3248 | /** | |
3249 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
3250 | * @kcontrol: mixer control | |
ac11a2b3 | 3251 | * @ucontrol: control element information |
2b97eabc RP |
3252 | * |
3253 | * Callback to get the value of a dapm mixer control. | |
3254 | * | |
3255 | * Returns 0 for success. | |
3256 | */ | |
3257 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3258 | struct snd_ctl_elem_value *ucontrol) | |
3259 | { | |
ce0fc93a LPC |
3260 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3261 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3262 | struct soc_mixer_control *mc = |
3263 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3264 | int reg = mc->reg; |
815ecf8d | 3265 | unsigned int shift = mc->shift; |
4eaa9819 | 3266 | int max = mc->max; |
e7aa450f | 3267 | unsigned int width = fls(max); |
815ecf8d | 3268 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3269 | unsigned int invert = mc->invert; |
e7aa450f | 3270 | unsigned int reg_val, val, rval = 0; |
ce0fc93a | 3271 | int ret = 0; |
da602ab8 | 3272 | |
57295073 | 3273 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a | 3274 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
e7aa450f CYT |
3275 | ret = soc_dapm_read(dapm, reg, ®_val); |
3276 | val = (reg_val >> shift) & mask; | |
3277 | ||
3278 | if (ret == 0 && reg != mc->rreg) | |
3279 | ret = soc_dapm_read(dapm, mc->rreg, ®_val); | |
3280 | ||
3281 | if (snd_soc_volsw_is_stereo(mc)) | |
3282 | rval = (reg_val >> mc->rshift) & mask; | |
ce0fc93a | 3283 | } else { |
e7aa450f CYT |
3284 | reg_val = dapm_kcontrol_get_value(kcontrol); |
3285 | val = reg_val & mask; | |
3286 | ||
3287 | if (snd_soc_volsw_is_stereo(mc)) | |
3288 | rval = (reg_val >> width) & mask; | |
ce0fc93a | 3289 | } |
57295073 LPC |
3290 | mutex_unlock(&card->dapm_mutex); |
3291 | ||
01ad5e7d CYT |
3292 | if (ret) |
3293 | return ret; | |
3294 | ||
da602ab8 | 3295 | if (invert) |
57295073 LPC |
3296 | ucontrol->value.integer.value[0] = max - val; |
3297 | else | |
3298 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3299 | |
e7aa450f CYT |
3300 | if (snd_soc_volsw_is_stereo(mc)) { |
3301 | if (invert) | |
3302 | ucontrol->value.integer.value[1] = max - rval; | |
3303 | else | |
3304 | ucontrol->value.integer.value[1] = rval; | |
3305 | } | |
3306 | ||
ce0fc93a | 3307 | return ret; |
2b97eabc RP |
3308 | } |
3309 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3310 | ||
3311 | /** | |
3312 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3313 | * @kcontrol: mixer control | |
ac11a2b3 | 3314 | * @ucontrol: control element information |
2b97eabc RP |
3315 | * |
3316 | * Callback to set the value of a dapm mixer control. | |
3317 | * | |
3318 | * Returns 0 for success. | |
3319 | */ | |
3320 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3321 | struct snd_ctl_elem_value *ucontrol) | |
3322 | { | |
ce0fc93a LPC |
3323 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3324 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3325 | struct soc_mixer_control *mc = |
3326 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3327 | int reg = mc->reg; |
815ecf8d | 3328 | unsigned int shift = mc->shift; |
4eaa9819 | 3329 | int max = mc->max; |
e7aa450f CYT |
3330 | unsigned int width = fls(max); |
3331 | unsigned int mask = (1 << width) - 1; | |
815ecf8d | 3332 | unsigned int invert = mc->invert; |
e7aa450f CYT |
3333 | unsigned int val, rval = 0; |
3334 | int connect, rconnect = -1, change, reg_change = 0; | |
33d9245c | 3335 | struct snd_soc_dapm_update update = {}; |
52765976 | 3336 | int ret = 0; |
2b97eabc RP |
3337 | |
3338 | val = (ucontrol->value.integer.value[0] & mask); | |
8a720718 | 3339 | connect = !!val; |
2b97eabc RP |
3340 | |
3341 | if (invert) | |
a7a4ac86 | 3342 | val = max - val; |
2b97eabc | 3343 | |
e7aa450f CYT |
3344 | if (snd_soc_volsw_is_stereo(mc)) { |
3345 | rval = (ucontrol->value.integer.value[1] & mask); | |
3346 | rconnect = !!rval; | |
3347 | if (invert) | |
3348 | rval = max - rval; | |
3349 | } | |
3350 | ||
3cd04343 | 3351 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3352 | |
e7aa450f CYT |
3353 | /* This assumes field width < (bits in unsigned int / 2) */ |
3354 | if (width > sizeof(unsigned int) * 8 / 2) | |
3355 | dev_warn(dapm->dev, | |
3356 | "ASoC: control %s field width limit exceeded\n", | |
3357 | kcontrol->id.name); | |
3358 | change = dapm_kcontrol_set_value(kcontrol, val | (rval << width)); | |
97404f2e | 3359 | |
18626c7e | 3360 | if (reg != SND_SOC_NOPM) { |
18626c7e | 3361 | val = val << shift; |
e7aa450f CYT |
3362 | rval = rval << mc->rshift; |
3363 | ||
3364 | reg_change = soc_dapm_test_bits(dapm, reg, mask << shift, val); | |
18626c7e | 3365 | |
e7aa450f CYT |
3366 | if (snd_soc_volsw_is_stereo(mc)) |
3367 | reg_change |= soc_dapm_test_bits(dapm, mc->rreg, | |
3368 | mask << mc->rshift, | |
3369 | rval); | |
18626c7e JN |
3370 | } |
3371 | ||
3372 | if (change || reg_change) { | |
3373 | if (reg_change) { | |
e7aa450f CYT |
3374 | if (snd_soc_volsw_is_stereo(mc)) { |
3375 | update.has_second_set = true; | |
3376 | update.reg2 = mc->rreg; | |
3377 | update.mask2 = mask << mc->rshift; | |
3378 | update.val2 = rval; | |
3379 | } | |
18626c7e JN |
3380 | update.kcontrol = kcontrol; |
3381 | update.reg = reg; | |
e7aa450f | 3382 | update.mask = mask << shift; |
18626c7e JN |
3383 | update.val = val; |
3384 | card->update = &update; | |
249ce138 | 3385 | } |
18626c7e | 3386 | change |= reg_change; |
97404f2e | 3387 | |
e7aa450f CYT |
3388 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, |
3389 | rconnect); | |
fafd2176 | 3390 | |
564c6504 | 3391 | card->update = NULL; |
283375ce MB |
3392 | } |
3393 | ||
a73fb2df | 3394 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3395 | |
3396 | if (ret > 0) | |
3397 | soc_dpcm_runtime_update(card); | |
3398 | ||
56a67834 | 3399 | return change; |
2b97eabc RP |
3400 | } |
3401 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3402 | ||
3403 | /** | |
3404 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3405 | * @kcontrol: mixer control | |
ac11a2b3 | 3406 | * @ucontrol: control element information |
2b97eabc RP |
3407 | * |
3408 | * Callback to get the value of a dapm enumerated double mixer control. | |
3409 | * | |
3410 | * Returns 0 for success. | |
3411 | */ | |
3412 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3413 | struct snd_ctl_elem_value *ucontrol) | |
3414 | { | |
ce0fc93a | 3415 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3416 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3417 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3418 | unsigned int reg_val, val; |
52765976 | 3419 | |
561ed680 CK |
3420 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3421 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3422 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3423 | if (ret) { |
3424 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3425 | return ret; |
964a0b89 | 3426 | } |
69128316 | 3427 | } else { |
236aaa68 | 3428 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3429 | } |
561ed680 | 3430 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3431 | |
2e72f8e3 | 3432 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3433 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3434 | if (e->shift_l != e->shift_r) { |
3435 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3436 | val = snd_soc_enum_val_to_item(e, val); |
3437 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3438 | } |
3439 | ||
69128316 | 3440 | return 0; |
2e72f8e3 | 3441 | } |
2b97eabc | 3442 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 PU |
3443 | |
3444 | /** | |
2b97eabc | 3445 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
2e72f8e3 PU |
3446 | * @kcontrol: mixer control |
3447 | * @ucontrol: control element information | |
3448 | * | |
2b97eabc | 3449 | * Callback to set the value of a dapm enumerated double mixer control. |
2e72f8e3 PU |
3450 | * |
3451 | * Returns 0 for success. | |
3452 | */ | |
2b97eabc | 3453 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
2e72f8e3 PU |
3454 | struct snd_ctl_elem_value *ucontrol) |
3455 | { | |
ce0fc93a LPC |
3456 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3457 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3458 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3459 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3460 | unsigned int val, change, reg_change = 0; |
46f5822f | 3461 | unsigned int mask; |
33d9245c | 3462 | struct snd_soc_dapm_update update = {}; |
52765976 | 3463 | int ret = 0; |
2e72f8e3 | 3464 | |
3727b496 | 3465 | if (item[0] >= e->items) |
2e72f8e3 | 3466 | return -EINVAL; |
3727b496 LPC |
3467 | |
3468 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3469 | mask = e->mask << e->shift_l; |
3470 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3471 | if (item[1] > e->items) |
2e72f8e3 | 3472 | return -EINVAL; |
071133a2 | 3473 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; |
2e72f8e3 PU |
3474 | mask |= e->mask << e->shift_r; |
3475 | } | |
3476 | ||
3cd04343 | 3477 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3478 | |
561ed680 CK |
3479 | change = dapm_kcontrol_set_value(kcontrol, val); |
3480 | ||
236aaa68 | 3481 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3482 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3483 | |
561ed680 CK |
3484 | if (change || reg_change) { |
3485 | if (reg_change) { | |
236aaa68 LPC |
3486 | update.kcontrol = kcontrol; |
3487 | update.reg = e->reg; | |
3488 | update.mask = mask; | |
3489 | update.val = val; | |
3490 | card->update = &update; | |
3491 | } | |
561ed680 | 3492 | change |= reg_change; |
1642e3d4 | 3493 | |
3727b496 | 3494 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3495 | |
564c6504 | 3496 | card->update = NULL; |
fafd2176 | 3497 | } |
2e72f8e3 | 3498 | |
a73fb2df | 3499 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3500 | |
3501 | if (ret > 0) | |
3502 | soc_dpcm_runtime_update(card); | |
3503 | ||
97404f2e | 3504 | return change; |
2e72f8e3 | 3505 | } |
2b97eabc | 3506 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3507 | |
8b37dbd2 MB |
3508 | /** |
3509 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3510 | * | |
3511 | * @kcontrol: mixer control | |
3512 | * @uinfo: control element information | |
3513 | * | |
3514 | * Callback to provide information about a pin switch control. | |
3515 | */ | |
3516 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3517 | struct snd_ctl_elem_info *uinfo) | |
3518 | { | |
3519 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3520 | uinfo->count = 1; | |
3521 | uinfo->value.integer.min = 0; | |
3522 | uinfo->value.integer.max = 1; | |
3523 | ||
3524 | return 0; | |
3525 | } | |
3526 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3527 | ||
3528 | /** | |
3529 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3530 | * | |
3531 | * @kcontrol: mixer control | |
3532 | * @ucontrol: Value | |
3533 | */ | |
3534 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3535 | struct snd_ctl_elem_value *ucontrol) | |
3536 | { | |
48a8c394 | 3537 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3538 | const char *pin = (const char *)kcontrol->private_value; |
3539 | ||
3cd04343 | 3540 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3541 | |
3542 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3543 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3544 | |
a73fb2df | 3545 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3546 | |
3547 | return 0; | |
3548 | } | |
3549 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3550 | ||
3551 | /** | |
3552 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3553 | * | |
3554 | * @kcontrol: mixer control | |
3555 | * @ucontrol: Value | |
3556 | */ | |
3557 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3558 | struct snd_ctl_elem_value *ucontrol) | |
3559 | { | |
48a8c394 | 3560 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3561 | const char *pin = (const char *)kcontrol->private_value; |
3562 | ||
8b37dbd2 | 3563 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3564 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3565 | else |
48a8c394 | 3566 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3567 | |
a73fb2df | 3568 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3569 | return 0; |
3570 | } | |
3571 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3572 | ||
02aa78ab LG |
3573 | struct snd_soc_dapm_widget * |
3574 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3575 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3576 | { |
a3423b02 | 3577 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3578 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3579 | const char *prefix; |
62ea874a | 3580 | int ret; |
2b97eabc RP |
3581 | |
3582 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
3bbf5d34 | 3583 | return ERR_PTR(-ENOMEM); |
2b97eabc | 3584 | |
62ea874a MB |
3585 | switch (w->id) { |
3586 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3587 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3588 | if (IS_ERR(w->regulator)) { | |
3589 | ret = PTR_ERR(w->regulator); | |
3bbf5d34 | 3590 | goto request_failed; |
62ea874a | 3591 | } |
8784c77a | 3592 | |
de9ba98b | 3593 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3594 | ret = regulator_allow_bypass(w->regulator, true); |
3595 | if (ret != 0) | |
3bbf5d34 | 3596 | dev_warn(dapm->dev, |
30686c35 | 3597 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3598 | w->name, ret); |
3599 | } | |
62ea874a | 3600 | break; |
5b2d15bb SK |
3601 | case snd_soc_dapm_pinctrl: |
3602 | w->pinctrl = devm_pinctrl_get(dapm->dev); | |
a5cd7e9c | 3603 | if (IS_ERR(w->pinctrl)) { |
5b2d15bb | 3604 | ret = PTR_ERR(w->pinctrl); |
3bbf5d34 | 3605 | goto request_failed; |
5b2d15bb SK |
3606 | } |
3607 | break; | |
d7e7eb91 | 3608 | case snd_soc_dapm_clock_supply: |
695594f1 | 3609 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3610 | if (IS_ERR(w->clk)) { |
3611 | ret = PTR_ERR(w->clk); | |
3bbf5d34 | 3612 | goto request_failed; |
d7e7eb91 OL |
3613 | } |
3614 | break; | |
62ea874a MB |
3615 | default: |
3616 | break; | |
3617 | } | |
2b97eabc | 3618 | |
94f99c87 | 3619 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3620 | if (prefix) |
94f99c87 | 3621 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3622 | else |
48068961 | 3623 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 | 3624 | if (w->name == NULL) { |
199ed3e8 | 3625 | kfree_const(w->sname); |
ead9b919 | 3626 | kfree(w); |
3bbf5d34 | 3627 | return ERR_PTR(-ENOMEM); |
ead9b919 | 3628 | } |
ead9b919 | 3629 | |
7ca3a18b | 3630 | switch (w->id) { |
6dd98b0a | 3631 | case snd_soc_dapm_mic: |
a3423b02 | 3632 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3633 | w->power_check = dapm_generic_check_power; |
3634 | break; | |
86d75003 LPC |
3635 | case snd_soc_dapm_input: |
3636 | if (!dapm->card->fully_routed) | |
a3423b02 | 3637 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3638 | w->power_check = dapm_generic_check_power; |
3639 | break; | |
6dd98b0a LPC |
3640 | case snd_soc_dapm_spk: |
3641 | case snd_soc_dapm_hp: | |
a3423b02 | 3642 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3643 | w->power_check = dapm_generic_check_power; |
3644 | break; | |
86d75003 LPC |
3645 | case snd_soc_dapm_output: |
3646 | if (!dapm->card->fully_routed) | |
a3423b02 | 3647 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3648 | w->power_check = dapm_generic_check_power; |
3649 | break; | |
6dd98b0a LPC |
3650 | case snd_soc_dapm_vmid: |
3651 | case snd_soc_dapm_siggen: | |
a3423b02 | 3652 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3653 | w->power_check = dapm_always_on_check_power; |
3654 | break; | |
56b4437f VK |
3655 | case snd_soc_dapm_sink: |
3656 | w->is_ep = SND_SOC_DAPM_EP_SINK; | |
3657 | w->power_check = dapm_always_on_check_power; | |
3658 | break; | |
3659 | ||
6dd98b0a | 3660 | case snd_soc_dapm_mux: |
d714f97c | 3661 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3662 | case snd_soc_dapm_switch: |
3663 | case snd_soc_dapm_mixer: | |
3664 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3665 | case snd_soc_dapm_adc: |
3666 | case snd_soc_dapm_aif_out: | |
3667 | case snd_soc_dapm_dac: | |
3668 | case snd_soc_dapm_aif_in: | |
7ca3a18b | 3669 | case snd_soc_dapm_pga: |
6e3bfcff RS |
3670 | case snd_soc_dapm_buffer: |
3671 | case snd_soc_dapm_scheduler: | |
3672 | case snd_soc_dapm_effect: | |
3673 | case snd_soc_dapm_src: | |
3674 | case snd_soc_dapm_asrc: | |
3675 | case snd_soc_dapm_encoder: | |
3676 | case snd_soc_dapm_decoder: | |
7ca3a18b | 3677 | case snd_soc_dapm_out_drv: |
7ca3a18b | 3678 | case snd_soc_dapm_micbias: |
7ca3a18b | 3679 | case snd_soc_dapm_line: |
c74184ed | 3680 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3681 | case snd_soc_dapm_dai_out: |
3682 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3683 | w->power_check = dapm_generic_check_power; |
3684 | break; | |
3685 | case snd_soc_dapm_supply: | |
62ea874a | 3686 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 3687 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 3688 | case snd_soc_dapm_clock_supply: |
57295073 | 3689 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3690 | w->is_supply = 1; |
7ca3a18b MB |
3691 | w->power_check = dapm_supply_check_power; |
3692 | break; | |
3693 | default: | |
3694 | w->power_check = dapm_always_on_check_power; | |
3695 | break; | |
3696 | } | |
3697 | ||
ce6120cc | 3698 | w->dapm = dapm; |
2b97eabc | 3699 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3700 | INIT_LIST_HEAD(&w->dirty); |
92fa1242 | 3701 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3702 | |
a3423b02 LPC |
3703 | snd_soc_dapm_for_each_direction(dir) { |
3704 | INIT_LIST_HEAD(&w->edges[dir]); | |
3705 | w->endpoints[dir] = -1; | |
3706 | } | |
92a99ea4 | 3707 | |
c8046000 | 3708 | /* machine layer sets up unconnected pins and insertions */ |
2b97eabc | 3709 | w->connected = 1; |
5ba06fc9 | 3710 | return w; |
3bbf5d34 CK |
3711 | |
3712 | request_failed: | |
3713 | if (ret != -EPROBE_DEFER) | |
3714 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", | |
3715 | w->name, ret); | |
3716 | ||
45004d66 WW |
3717 | kfree_const(w->sname); |
3718 | kfree(w); | |
3bbf5d34 | 3719 | return ERR_PTR(ret); |
2b97eabc | 3720 | } |
2b97eabc | 3721 | |
94e630a3 CK |
3722 | /** |
3723 | * snd_soc_dapm_new_control - create new dapm control | |
3724 | * @dapm: DAPM context | |
3725 | * @widget: widget template | |
3726 | * | |
3727 | * Creates new DAPM control based upon a template. | |
3728 | * | |
3729 | * Returns a widget pointer on success or an error pointer on failure | |
3730 | */ | |
3731 | struct snd_soc_dapm_widget * | |
3732 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3733 | const struct snd_soc_dapm_widget *widget) | |
3734 | { | |
3735 | struct snd_soc_dapm_widget *w; | |
3736 | ||
3737 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3738 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3739 | mutex_unlock(&dapm->card->dapm_mutex); | |
3740 | ||
3741 | return w; | |
3742 | } | |
3743 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
3744 | ||
4ba1327a MB |
3745 | /** |
3746 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3747 | * @dapm: DAPM context |
4ba1327a MB |
3748 | * @widget: widget array |
3749 | * @num: number of widgets | |
3750 | * | |
3751 | * Creates new DAPM controls based upon the templates. | |
3752 | * | |
3753 | * Returns 0 for success else error. | |
3754 | */ | |
ce6120cc | 3755 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3756 | const struct snd_soc_dapm_widget *widget, |
3757 | int num) | |
3758 | { | |
5ba06fc9 MB |
3759 | struct snd_soc_dapm_widget *w; |
3760 | int i; | |
60884c27 | 3761 | int ret = 0; |
4ba1327a | 3762 | |
a73fb2df | 3763 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3764 | for (i = 0; i < num; i++) { |
02aa78ab | 3765 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
37e1df8c LW |
3766 | if (IS_ERR(w)) { |
3767 | ret = PTR_ERR(w); | |
60884c27 | 3768 | break; |
b8b33cb5 | 3769 | } |
4ba1327a MB |
3770 | widget++; |
3771 | } | |
a73fb2df | 3772 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3773 | return ret; |
4ba1327a MB |
3774 | } |
3775 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3776 | ||
3dcfb397 JB |
3777 | static int |
3778 | snd_soc_dai_link_event_pre_pmu(struct snd_soc_dapm_widget *w, | |
3779 | struct snd_pcm_substream *substream) | |
c74184ed | 3780 | { |
4a75aae1 | 3781 | struct snd_soc_dapm_path *path; |
c74184ed | 3782 | struct snd_soc_dai *source, *sink; |
3dcfb397 | 3783 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
9747cec2 | 3784 | struct snd_pcm_hw_params *params = NULL; |
3dcfb397 | 3785 | const struct snd_soc_pcm_stream *config = NULL; |
a72706ed | 3786 | struct snd_pcm_runtime *runtime = NULL; |
3ba66feb | 3787 | unsigned int fmt; |
c8415833 | 3788 | int ret = 0; |
c74184ed | 3789 | |
3dcfb397 JB |
3790 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3791 | if (!params) | |
3792 | return -ENOMEM; | |
243bcfaf | 3793 | |
a72706ed JB |
3794 | runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); |
3795 | if (!runtime) { | |
3796 | ret = -ENOMEM; | |
3797 | goto out; | |
3798 | } | |
3799 | ||
3800 | substream->runtime = runtime; | |
3801 | ||
3dcfb397 JB |
3802 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
3803 | snd_soc_dapm_widget_for_each_source_path(w, path) { | |
3804 | source = path->source->priv; | |
3805 | ||
3806 | ret = snd_soc_dai_startup(source, substream); | |
3807 | if (ret < 0) { | |
3808 | dev_err(source->dev, | |
3809 | "ASoC: startup() failed: %d\n", ret); | |
3810 | goto out; | |
3811 | } | |
3812 | source->active++; | |
3813 | } | |
3814 | ||
3815 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3816 | snd_soc_dapm_widget_for_each_sink_path(w, path) { | |
3817 | sink = path->sink->priv; | |
3818 | ||
3819 | ret = snd_soc_dai_startup(sink, substream); | |
3820 | if (ret < 0) { | |
3821 | dev_err(sink->dev, | |
3822 | "ASoC: startup() failed: %d\n", ret); | |
3823 | goto out; | |
3824 | } | |
3825 | sink->active++; | |
3826 | } | |
3827 | ||
a72706ed JB |
3828 | substream->hw_opened = 1; |
3829 | ||
3dcfb397 JB |
3830 | /* |
3831 | * Note: getting the config after .startup() gives a chance to | |
3832 | * either party on the link to alter the configuration if | |
3833 | * necessary | |
3834 | */ | |
3835 | config = rtd->dai_link->params + rtd->params_select; | |
3836 | if (WARN_ON(!config)) { | |
3837 | dev_err(w->dapm->dev, "ASoC: link config missing\n"); | |
3838 | ret = -EINVAL; | |
3839 | goto out; | |
3840 | } | |
c74184ed | 3841 | |
c74184ed MB |
3842 | /* Be a little careful as we don't want to overflow the mask array */ |
3843 | if (config->formats) { | |
3844 | fmt = ffs(config->formats) - 1; | |
3845 | } else { | |
30a6a1a4 | 3846 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed | 3847 | config->formats); |
c74184ed | 3848 | |
3dcfb397 | 3849 | ret = -EINVAL; |
9747cec2 MB |
3850 | goto out; |
3851 | } | |
c74184ed | 3852 | |
3dcfb397 | 3853 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); |
9747cec2 | 3854 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3855 | config->rate_min; |
9747cec2 | 3856 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed | 3857 | config->rate_max; |
9747cec2 | 3858 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3859 | = config->channels_min; |
9747cec2 | 3860 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3861 | = config->channels_max; |
3862 | ||
3dcfb397 JB |
3863 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
3864 | snd_soc_dapm_widget_for_each_source_path(w, path) { | |
3865 | source = path->source->priv; | |
3866 | ||
3867 | ret = snd_soc_dai_hw_params(source, substream, params); | |
3868 | if (ret < 0) | |
3869 | goto out; | |
3870 | ||
3871 | dapm_update_dai_unlocked(substream, params, source); | |
3872 | } | |
3873 | ||
3874 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3875 | snd_soc_dapm_widget_for_each_sink_path(w, path) { | |
3876 | sink = path->sink->priv; | |
3877 | ||
3878 | ret = snd_soc_dai_hw_params(sink, substream, params); | |
3879 | if (ret < 0) | |
3880 | goto out; | |
3881 | ||
3882 | dapm_update_dai_unlocked(substream, params, sink); | |
3883 | } | |
3884 | ||
9de98628 JB |
3885 | runtime->format = params_format(params); |
3886 | runtime->subformat = params_subformat(params); | |
3887 | runtime->channels = params_channels(params); | |
3888 | runtime->rate = params_rate(params); | |
3889 | ||
3dcfb397 | 3890 | out: |
a72706ed JB |
3891 | if (ret < 0) |
3892 | kfree(runtime); | |
3893 | ||
3dcfb397 | 3894 | kfree(params); |
c8415833 | 3895 | return ret; |
3dcfb397 JB |
3896 | } |
3897 | ||
3898 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, | |
3899 | struct snd_kcontrol *kcontrol, int event) | |
3900 | { | |
3901 | struct snd_soc_dapm_path *path; | |
3902 | struct snd_soc_dai *source, *sink; | |
a72706ed JB |
3903 | struct snd_pcm_substream *substream = w->priv; |
3904 | int ret = 0, saved_stream = substream->stream; | |
3dcfb397 JB |
3905 | |
3906 | if (WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || | |
3907 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
3908 | return -EINVAL; | |
3909 | ||
c74184ed MB |
3910 | switch (event) { |
3911 | case SND_SOC_DAPM_PRE_PMU: | |
a72706ed | 3912 | ret = snd_soc_dai_link_event_pre_pmu(w, substream); |
3dcfb397 JB |
3913 | if (ret < 0) |
3914 | goto out; | |
078a85f2 | 3915 | |
c74184ed MB |
3916 | break; |
3917 | ||
3918 | case SND_SOC_DAPM_POST_PMU: | |
4a75aae1 CK |
3919 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3920 | sink = path->sink->priv; | |
3921 | ||
3922 | ret = snd_soc_dai_digital_mute(sink, 0, | |
3923 | SNDRV_PCM_STREAM_PLAYBACK); | |
3924 | if (ret != 0 && ret != -ENOTSUPP) | |
3925 | dev_warn(sink->dev, | |
3926 | "ASoC: Failed to unmute: %d\n", ret); | |
3927 | ret = 0; | |
3928 | } | |
c74184ed MB |
3929 | break; |
3930 | ||
3931 | case SND_SOC_DAPM_PRE_PMD: | |
4a75aae1 CK |
3932 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3933 | sink = path->sink->priv; | |
3934 | ||
3935 | ret = snd_soc_dai_digital_mute(sink, 1, | |
3936 | SNDRV_PCM_STREAM_PLAYBACK); | |
3937 | if (ret != 0 && ret != -ENOTSUPP) | |
3938 | dev_warn(sink->dev, | |
3939 | "ASoC: Failed to mute: %d\n", ret); | |
3940 | ret = 0; | |
3941 | } | |
3942 | ||
a72706ed | 3943 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
4a75aae1 CK |
3944 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
3945 | source = path->source->priv; | |
a72706ed | 3946 | snd_soc_dai_hw_free(source, substream); |
68c907f1 JB |
3947 | } |
3948 | ||
a72706ed | 3949 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; |
68c907f1 JB |
3950 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3951 | sink = path->sink->priv; | |
a72706ed | 3952 | snd_soc_dai_hw_free(sink, substream); |
68c907f1 | 3953 | } |
3c01b0e1 | 3954 | |
a72706ed | 3955 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
68c907f1 JB |
3956 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
3957 | source = path->source->priv; | |
4a75aae1 | 3958 | source->active--; |
a72706ed | 3959 | snd_soc_dai_shutdown(source, substream); |
9b8ef9f6 JK |
3960 | } |
3961 | ||
a72706ed | 3962 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; |
4a75aae1 CK |
3963 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3964 | sink = path->sink->priv; | |
4a75aae1 | 3965 | sink->active--; |
a72706ed | 3966 | snd_soc_dai_shutdown(sink, substream); |
9b8ef9f6 | 3967 | } |
c74184ed MB |
3968 | break; |
3969 | ||
a72706ed JB |
3970 | case SND_SOC_DAPM_POST_PMD: |
3971 | kfree(substream->runtime); | |
3972 | break; | |
3973 | ||
c74184ed | 3974 | default: |
a6ed0608 | 3975 | WARN(1, "Unknown event %d\n", event); |
75881df3 | 3976 | ret = -EINVAL; |
c74184ed MB |
3977 | } |
3978 | ||
9747cec2 | 3979 | out: |
a72706ed JB |
3980 | /* Restore the substream direction */ |
3981 | substream->stream = saved_stream; | |
9747cec2 | 3982 | return ret; |
c74184ed MB |
3983 | } |
3984 | ||
c6615082 NO |
3985 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
3986 | struct snd_ctl_elem_value *ucontrol) | |
3987 | { | |
3988 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
243bcfaf | 3989 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 | 3990 | |
243bcfaf | 3991 | ucontrol->value.enumerated.item[0] = rtd->params_select; |
c6615082 NO |
3992 | |
3993 | return 0; | |
3994 | } | |
3995 | ||
3996 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
3997 | struct snd_ctl_elem_value *ucontrol) | |
3998 | { | |
3999 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
243bcfaf | 4000 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 NO |
4001 | |
4002 | /* Can't change the config when widget is already powered */ | |
4003 | if (w->power) | |
4004 | return -EBUSY; | |
4005 | ||
243bcfaf | 4006 | if (ucontrol->value.enumerated.item[0] == rtd->params_select) |
c6615082 NO |
4007 | return 0; |
4008 | ||
243bcfaf | 4009 | if (ucontrol->value.enumerated.item[0] >= rtd->dai_link->num_params) |
c6615082 NO |
4010 | return -EINVAL; |
4011 | ||
243bcfaf | 4012 | rtd->params_select = ucontrol->value.enumerated.item[0]; |
c6615082 NO |
4013 | |
4014 | return 0; | |
4015 | } | |
4016 | ||
c42c5ac4 | 4017 | static void |
19ad683a | 4018 | snd_soc_dapm_free_kcontrol(struct snd_soc_card *card, |
4019 | unsigned long *private_value, | |
4020 | int num_params, | |
4021 | const char **w_param_text) | |
4022 | { | |
4023 | int count; | |
4024 | ||
4025 | devm_kfree(card->dev, (void *)*private_value); | |
cacea3a9 PB |
4026 | |
4027 | if (!w_param_text) | |
4028 | return; | |
4029 | ||
19ad683a | 4030 | for (count = 0 ; count < num_params; count++) |
4031 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
4032 | devm_kfree(card->dev, w_param_text); | |
4033 | } | |
4034 | ||
4035 | static struct snd_kcontrol_new * | |
4036 | snd_soc_dapm_alloc_kcontrol(struct snd_soc_card *card, | |
4037 | char *link_name, | |
4038 | const struct snd_soc_pcm_stream *params, | |
4039 | int num_params, const char **w_param_text, | |
4040 | unsigned long *private_value) | |
c74184ed | 4041 | { |
c6615082 NO |
4042 | struct soc_enum w_param_enum[] = { |
4043 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
4044 | }; | |
4045 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
4046 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
4047 | snd_soc_dapm_dai_link_get, | |
4048 | snd_soc_dapm_dai_link_put), | |
4049 | }; | |
19ad683a | 4050 | struct snd_kcontrol_new *kcontrol_news; |
c6615082 | 4051 | const struct snd_soc_pcm_stream *config = params; |
19ad683a | 4052 | int count; |
c74184ed | 4053 | |
c6615082 NO |
4054 | for (count = 0 ; count < num_params; count++) { |
4055 | if (!config->stream_name) { | |
4056 | dev_warn(card->dapm.dev, | |
4057 | "ASoC: anonymous config %d for dai link %s\n", | |
4058 | count, link_name); | |
c6615082 | 4059 | w_param_text[count] = |
46172b6c CK |
4060 | devm_kasprintf(card->dev, GFP_KERNEL, |
4061 | "Anonymous Configuration %d", | |
4062 | count); | |
c6615082 NO |
4063 | } else { |
4064 | w_param_text[count] = devm_kmemdup(card->dev, | |
4065 | config->stream_name, | |
4066 | strlen(config->stream_name) + 1, | |
4067 | GFP_KERNEL); | |
c6615082 | 4068 | } |
19ad683a | 4069 | if (!w_param_text[count]) |
4070 | goto outfree_w_param; | |
c6615082 NO |
4071 | config++; |
4072 | } | |
19ad683a | 4073 | |
c6615082 NO |
4074 | w_param_enum[0].items = num_params; |
4075 | w_param_enum[0].texts = w_param_text; | |
c74184ed | 4076 | |
19ad683a | 4077 | *private_value = |
c6615082 NO |
4078 | (unsigned long) devm_kmemdup(card->dev, |
4079 | (void *)(kcontrol_dai_link[0].private_value), | |
4080 | sizeof(struct soc_enum), GFP_KERNEL); | |
19ad683a | 4081 | if (!*private_value) { |
c6615082 NO |
4082 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", |
4083 | link_name); | |
19ad683a | 4084 | goto outfree_w_param; |
c6615082 | 4085 | } |
19ad683a | 4086 | kcontrol_dai_link[0].private_value = *private_value; |
c6615082 | 4087 | /* duplicate kcontrol_dai_link on heap so that memory persists */ |
19ad683a | 4088 | kcontrol_news = devm_kmemdup(card->dev, &kcontrol_dai_link[0], |
c6615082 NO |
4089 | sizeof(struct snd_kcontrol_new), |
4090 | GFP_KERNEL); | |
19ad683a | 4091 | if (!kcontrol_news) { |
c6615082 NO |
4092 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", |
4093 | link_name); | |
19ad683a | 4094 | goto outfree_w_param; |
c6615082 | 4095 | } |
19ad683a | 4096 | return kcontrol_news; |
c74184ed | 4097 | |
19ad683a | 4098 | outfree_w_param: |
4099 | snd_soc_dapm_free_kcontrol(card, private_value, num_params, w_param_text); | |
4100 | return NULL; | |
4101 | } | |
4102 | ||
778ff5bb | 4103 | static struct snd_soc_dapm_widget * |
a72706ed JB |
4104 | snd_soc_dapm_new_dai(struct snd_soc_card *card, |
4105 | struct snd_pcm_substream *substream, | |
054d6500 | 4106 | char *id) |
19ad683a | 4107 | { |
a72706ed | 4108 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
19ad683a | 4109 | struct snd_soc_dapm_widget template; |
4110 | struct snd_soc_dapm_widget *w; | |
4111 | const char **w_param_text; | |
8633d440 | 4112 | unsigned long private_value = 0; |
19ad683a | 4113 | char *link_name; |
4114 | int ret; | |
4115 | ||
4116 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", | |
054d6500 | 4117 | rtd->dai_link->name, id); |
19ad683a | 4118 | if (!link_name) |
778ff5bb | 4119 | return ERR_PTR(-ENOMEM); |
19ad683a | 4120 | |
4121 | memset(&template, 0, sizeof(template)); | |
4122 | template.reg = SND_SOC_NOPM; | |
4123 | template.id = snd_soc_dapm_dai_link; | |
4124 | template.name = link_name; | |
4125 | template.event = snd_soc_dai_link_event; | |
4126 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
a72706ed | 4127 | SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD; |
19ad683a | 4128 | template.kcontrol_news = NULL; |
4129 | ||
4130 | /* allocate memory for control, only in case of multiple configs */ | |
778ff5bb CK |
4131 | if (rtd->dai_link->num_params > 1) { |
4132 | w_param_text = devm_kcalloc(card->dev, | |
4133 | rtd->dai_link->num_params, | |
4134 | sizeof(char *), GFP_KERNEL); | |
19ad683a | 4135 | if (!w_param_text) { |
4136 | ret = -ENOMEM; | |
4137 | goto param_fail; | |
4138 | } | |
c74184ed | 4139 | |
19ad683a | 4140 | template.num_kcontrols = 1; |
4141 | template.kcontrol_news = | |
4142 | snd_soc_dapm_alloc_kcontrol(card, | |
778ff5bb CK |
4143 | link_name, |
4144 | rtd->dai_link->params, | |
4145 | rtd->dai_link->num_params, | |
19ad683a | 4146 | w_param_text, &private_value); |
4147 | if (!template.kcontrol_news) { | |
4148 | ret = -ENOMEM; | |
4149 | goto param_fail; | |
4150 | } | |
667ebc97 AB |
4151 | } else { |
4152 | w_param_text = NULL; | |
19ad683a | 4153 | } |
30a6a1a4 | 4154 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 4155 | |
02aa78ab | 4156 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
2e558a81 DC |
4157 | if (IS_ERR(w)) { |
4158 | ret = PTR_ERR(w); | |
c6615082 | 4159 | goto outfree_kcontrol_news; |
2e558a81 | 4160 | } |
c74184ed | 4161 | |
a72706ed | 4162 | w->priv = substream; |
c74184ed | 4163 | |
778ff5bb | 4164 | return w; |
c6615082 | 4165 | |
c6615082 NO |
4166 | outfree_kcontrol_news: |
4167 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
778ff5bb CK |
4168 | snd_soc_dapm_free_kcontrol(card, &private_value, |
4169 | rtd->dai_link->num_params, w_param_text); | |
19ad683a | 4170 | param_fail: |
c6615082 | 4171 | devm_kfree(card->dev, link_name); |
778ff5bb | 4172 | return ERR_PTR(ret); |
c74184ed MB |
4173 | } |
4174 | ||
888df395 MB |
4175 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
4176 | struct snd_soc_dai *dai) | |
2b97eabc | 4177 | { |
888df395 | 4178 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
4179 | struct snd_soc_dapm_widget *w; |
4180 | ||
888df395 MB |
4181 | WARN_ON(dapm->dev != dai->dev); |
4182 | ||
4183 | memset(&template, 0, sizeof(template)); | |
4184 | template.reg = SND_SOC_NOPM; | |
4185 | ||
4186 | if (dai->driver->playback.stream_name) { | |
4616274d | 4187 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
4188 | template.name = dai->driver->playback.stream_name; |
4189 | template.sname = dai->driver->playback.stream_name; | |
4190 | ||
30a6a1a4 | 4191 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
4192 | template.name); |
4193 | ||
02aa78ab | 4194 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
3bbf5d34 CK |
4195 | if (IS_ERR(w)) |
4196 | return PTR_ERR(w); | |
888df395 MB |
4197 | |
4198 | w->priv = dai; | |
4199 | dai->playback_widget = w; | |
4200 | } | |
4201 | ||
4202 | if (dai->driver->capture.stream_name) { | |
4616274d | 4203 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
4204 | template.name = dai->driver->capture.stream_name; |
4205 | template.sname = dai->driver->capture.stream_name; | |
4206 | ||
30a6a1a4 | 4207 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
4208 | template.name); |
4209 | ||
02aa78ab | 4210 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
3bbf5d34 CK |
4211 | if (IS_ERR(w)) |
4212 | return PTR_ERR(w); | |
888df395 MB |
4213 | |
4214 | w->priv = dai; | |
4215 | dai->capture_widget = w; | |
4216 | } | |
4217 | ||
4218 | return 0; | |
4219 | } | |
4220 | ||
4221 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
4222 | { | |
4223 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 4224 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 4225 | struct snd_soc_dai *dai; |
888df395 MB |
4226 | |
4227 | /* For each DAI widget... */ | |
4228 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
4229 | switch (dai_w->id) { |
4230 | case snd_soc_dapm_dai_in: | |
4231 | case snd_soc_dapm_dai_out: | |
4232 | break; | |
4233 | default: | |
2b97eabc | 4234 | continue; |
4616274d | 4235 | } |
888df395 | 4236 | |
e01b4f62 LG |
4237 | /* let users know there is no DAI to link */ |
4238 | if (!dai_w->priv) { | |
4239 | dev_dbg(card->dev, "dai widget %s has no DAI\n", | |
4240 | dai_w->name); | |
4241 | continue; | |
4242 | } | |
4243 | ||
888df395 MB |
4244 | dai = dai_w->priv; |
4245 | ||
4246 | /* ...find all widgets with the same stream and link them */ | |
4247 | list_for_each_entry(w, &card->widgets, list) { | |
4248 | if (w->dapm != dai_w->dapm) | |
4249 | continue; | |
4250 | ||
4616274d MB |
4251 | switch (w->id) { |
4252 | case snd_soc_dapm_dai_in: | |
4253 | case snd_soc_dapm_dai_out: | |
888df395 | 4254 | continue; |
4616274d MB |
4255 | default: |
4256 | break; | |
4257 | } | |
888df395 | 4258 | |
a798c24a | 4259 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
4260 | continue; |
4261 | ||
0f9bd7b1 LPC |
4262 | if (dai_w->id == snd_soc_dapm_dai_in) { |
4263 | src = dai_w; | |
4264 | sink = w; | |
4265 | } else { | |
4266 | src = w; | |
4267 | sink = dai_w; | |
2b97eabc | 4268 | } |
0f9bd7b1 LPC |
4269 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
4270 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
4271 | } |
4272 | } | |
2b97eabc | 4273 | |
888df395 MB |
4274 | return 0; |
4275 | } | |
64a648c2 | 4276 | |
44ba2641 BC |
4277 | static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, |
4278 | struct snd_soc_pcm_runtime *rtd) | |
b893ea5f | 4279 | { |
44ba2641 | 4280 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
0b7990e3 | 4281 | struct snd_soc_dai *codec_dai; |
778ff5bb CK |
4282 | struct snd_soc_dapm_widget *playback = NULL, *capture = NULL; |
4283 | struct snd_soc_dapm_widget *codec, *playback_cpu, *capture_cpu; | |
a72706ed JB |
4284 | struct snd_pcm_substream *substream; |
4285 | struct snd_pcm_str *streams = rtd->pcm->streams; | |
b893ea5f LG |
4286 | int i; |
4287 | ||
778ff5bb | 4288 | if (rtd->dai_link->params) { |
778ff5bb CK |
4289 | playback_cpu = cpu_dai->capture_widget; |
4290 | capture_cpu = cpu_dai->playback_widget; | |
4291 | } else { | |
4292 | playback = cpu_dai->playback_widget; | |
4293 | capture = cpu_dai->capture_widget; | |
4294 | playback_cpu = playback; | |
4295 | capture_cpu = capture; | |
4296 | } | |
4297 | ||
0b7990e3 | 4298 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
b893ea5f | 4299 | /* connect BE DAI playback if widgets are valid */ |
778ff5bb CK |
4300 | codec = codec_dai->playback_widget; |
4301 | ||
4302 | if (playback_cpu && codec) { | |
4303 | if (!playback) { | |
a72706ed JB |
4304 | substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream; |
4305 | playback = snd_soc_dapm_new_dai(card, substream, | |
054d6500 | 4306 | "playback"); |
e36a1d0d CK |
4307 | if (IS_ERR(playback)) { |
4308 | dev_err(rtd->dev, | |
4309 | "ASoC: Failed to create DAI %s: %ld\n", | |
4310 | codec_dai->name, | |
4311 | PTR_ERR(playback)); | |
4312 | continue; | |
4313 | } | |
778ff5bb CK |
4314 | |
4315 | snd_soc_dapm_add_path(&card->dapm, playback_cpu, | |
4316 | playback, NULL, NULL); | |
4317 | } | |
4318 | ||
b893ea5f | 4319 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
778ff5bb CK |
4320 | cpu_dai->component->name, playback_cpu->name, |
4321 | codec_dai->component->name, codec->name); | |
b893ea5f | 4322 | |
778ff5bb CK |
4323 | snd_soc_dapm_add_path(&card->dapm, playback, codec, |
4324 | NULL, NULL); | |
b893ea5f | 4325 | } |
e36a1d0d | 4326 | } |
b893ea5f | 4327 | |
e36a1d0d | 4328 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
b893ea5f | 4329 | /* connect BE DAI capture if widgets are valid */ |
778ff5bb CK |
4330 | codec = codec_dai->capture_widget; |
4331 | ||
4332 | if (codec && capture_cpu) { | |
4333 | if (!capture) { | |
a72706ed JB |
4334 | substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream; |
4335 | capture = snd_soc_dapm_new_dai(card, substream, | |
054d6500 | 4336 | "capture"); |
e36a1d0d CK |
4337 | if (IS_ERR(capture)) { |
4338 | dev_err(rtd->dev, | |
4339 | "ASoC: Failed to create DAI %s: %ld\n", | |
4340 | codec_dai->name, | |
4341 | PTR_ERR(capture)); | |
4342 | continue; | |
4343 | } | |
778ff5bb CK |
4344 | |
4345 | snd_soc_dapm_add_path(&card->dapm, capture, | |
4346 | capture_cpu, NULL, NULL); | |
4347 | } | |
4348 | ||
b893ea5f | 4349 | dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", |
778ff5bb CK |
4350 | codec_dai->component->name, codec->name, |
4351 | cpu_dai->component->name, capture_cpu->name); | |
b893ea5f | 4352 | |
778ff5bb CK |
4353 | snd_soc_dapm_add_path(&card->dapm, codec, capture, |
4354 | NULL, NULL); | |
b893ea5f | 4355 | } |
b893ea5f LG |
4356 | } |
4357 | } | |
4358 | ||
c471fdd1 | 4359 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 4360 | int event) |
2b97eabc | 4361 | { |
c471fdd1 | 4362 | struct snd_soc_dapm_widget *w; |
a3423b02 | 4363 | unsigned int ep; |
7bd3a6f3 | 4364 | |
c471fdd1 LPC |
4365 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
4366 | w = dai->playback_widget; | |
4367 | else | |
4368 | w = dai->capture_widget; | |
fe360685 | 4369 | |
c471fdd1 LPC |
4370 | if (w) { |
4371 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 4372 | |
a3423b02 LPC |
4373 | if (w->id == snd_soc_dapm_dai_in) { |
4374 | ep = SND_SOC_DAPM_EP_SOURCE; | |
4375 | dapm_widget_invalidate_input_paths(w); | |
4376 | } else { | |
4377 | ep = SND_SOC_DAPM_EP_SINK; | |
4378 | dapm_widget_invalidate_output_paths(w); | |
4379 | } | |
4380 | ||
d9b0951b LG |
4381 | switch (event) { |
4382 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 4383 | w->active = 1; |
a3423b02 | 4384 | w->is_ep = ep; |
d9b0951b LG |
4385 | break; |
4386 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 4387 | w->active = 0; |
a3423b02 | 4388 | w->is_ep = 0; |
d9b0951b LG |
4389 | break; |
4390 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
4391 | case SND_SOC_DAPM_STREAM_RESUME: | |
4392 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
4393 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
4394 | break; | |
4395 | } | |
4396 | } | |
c471fdd1 | 4397 | } |
d9b0951b | 4398 | |
44ba2641 BC |
4399 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
4400 | { | |
1a497983 | 4401 | struct snd_soc_pcm_runtime *rtd; |
44ba2641 BC |
4402 | |
4403 | /* for each BE DAI link... */ | |
bcb1fd1f | 4404 | for_each_card_rtds(card, rtd) { |
44ba2641 BC |
4405 | /* |
4406 | * dynamic FE links have no fixed DAI mapping. | |
4407 | * CODEC<->CODEC links have no direct connection. | |
4408 | */ | |
778ff5bb | 4409 | if (rtd->dai_link->dynamic) |
44ba2641 BC |
4410 | continue; |
4411 | ||
4412 | dapm_connect_dai_link_widgets(card, rtd); | |
4413 | } | |
4414 | } | |
4415 | ||
c471fdd1 LPC |
4416 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4417 | int event) | |
4418 | { | |
0b7990e3 | 4419 | struct snd_soc_dai *codec_dai; |
44ba2641 BC |
4420 | int i; |
4421 | ||
c471fdd1 | 4422 | soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); |
0b7990e3 KM |
4423 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
4424 | soc_dapm_dai_stream_event(codec_dai, stream, event); | |
2b97eabc | 4425 | |
95dd5cd6 | 4426 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
4427 | } |
4428 | ||
4429 | /** | |
4430 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
4431 | * @rtd: PCM runtime data | |
4432 | * @stream: stream name | |
4433 | * @event: stream event | |
4434 | * | |
4435 | * Sends a stream event to the dapm core. The core then makes any | |
4436 | * necessary widget power changes. | |
4437 | * | |
4438 | * Returns 0 for success else error. | |
4439 | */ | |
d9b0951b LG |
4440 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4441 | int event) | |
ce6120cc | 4442 | { |
a73fb2df | 4443 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 4444 | |
3cd04343 | 4445 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 4446 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 4447 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 4448 | } |
2b97eabc | 4449 | |
11391100 CK |
4450 | /** |
4451 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
4452 | * @dapm: DAPM context | |
4453 | * @pin: pin name | |
4454 | * | |
4455 | * Enables input/output pin and its parents or children widgets iff there is | |
4456 | * a valid audio route and active audio stream. | |
4457 | * | |
4458 | * Requires external locking. | |
4459 | * | |
4460 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4461 | * do any widget power switching. | |
4462 | */ | |
4463 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4464 | const char *pin) | |
4465 | { | |
4466 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
4467 | } | |
4468 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
4469 | ||
2b97eabc | 4470 | /** |
a5302181 | 4471 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 4472 | * @dapm: DAPM context |
a5302181 | 4473 | * @pin: pin name |
2b97eabc | 4474 | * |
74b8f955 | 4475 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 4476 | * a valid audio route and active audio stream. |
11391100 | 4477 | * |
a5302181 LG |
4478 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4479 | * do any widget power switching. | |
2b97eabc | 4480 | */ |
ce6120cc | 4481 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 4482 | { |
11391100 CK |
4483 | int ret; |
4484 | ||
4485 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4486 | ||
4487 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
4488 | ||
4489 | mutex_unlock(&dapm->card->dapm_mutex); | |
4490 | ||
4491 | return ret; | |
a5302181 LG |
4492 | } |
4493 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 4494 | |
da34183e | 4495 | /** |
11391100 | 4496 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4497 | * @dapm: DAPM context |
da34183e MB |
4498 | * @pin: pin name |
4499 | * | |
4500 | * Enables input/output pin regardless of any other state. This is | |
4501 | * intended for use with microphone bias supplies used in microphone | |
4502 | * jack detection. | |
4503 | * | |
11391100 CK |
4504 | * Requires external locking. |
4505 | * | |
da34183e MB |
4506 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4507 | * do any widget power switching. | |
4508 | */ | |
11391100 CK |
4509 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4510 | const char *pin) | |
da34183e | 4511 | { |
91a5fca4 | 4512 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4513 | |
91a5fca4 | 4514 | if (!w) { |
30a6a1a4 | 4515 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4516 | return -EINVAL; |
0d86733c MB |
4517 | } |
4518 | ||
30a6a1a4 | 4519 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4520 | if (!w->connected) { |
4521 | /* | |
4522 | * w->force does not affect the number of input or output paths, | |
4523 | * so we only have to recheck if w->connected is changed | |
4524 | */ | |
4525 | dapm_widget_invalidate_input_paths(w); | |
4526 | dapm_widget_invalidate_output_paths(w); | |
4527 | w->connected = 1; | |
4528 | } | |
91a5fca4 | 4529 | w->force = 1; |
75c1f891 | 4530 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4531 | |
91a5fca4 | 4532 | return 0; |
da34183e | 4533 | } |
11391100 CK |
4534 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4535 | ||
4536 | /** | |
4537 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4538 | * @dapm: DAPM context | |
4539 | * @pin: pin name | |
4540 | * | |
4541 | * Enables input/output pin regardless of any other state. This is | |
4542 | * intended for use with microphone bias supplies used in microphone | |
4543 | * jack detection. | |
4544 | * | |
4545 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4546 | * do any widget power switching. | |
4547 | */ | |
4548 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4549 | const char *pin) | |
4550 | { | |
4551 | int ret; | |
4552 | ||
4553 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4554 | ||
4555 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4556 | ||
4557 | mutex_unlock(&dapm->card->dapm_mutex); | |
4558 | ||
4559 | return ret; | |
4560 | } | |
da34183e MB |
4561 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4562 | ||
11391100 CK |
4563 | /** |
4564 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4565 | * @dapm: DAPM context | |
4566 | * @pin: pin name | |
4567 | * | |
4568 | * Disables input/output pin and its parents or children widgets. | |
4569 | * | |
4570 | * Requires external locking. | |
4571 | * | |
4572 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4573 | * do any widget power switching. | |
4574 | */ | |
4575 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4576 | const char *pin) | |
4577 | { | |
4578 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4579 | } | |
4580 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4581 | ||
a5302181 LG |
4582 | /** |
4583 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4584 | * @dapm: DAPM context |
a5302181 LG |
4585 | * @pin: pin name |
4586 | * | |
74b8f955 | 4587 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4588 | * |
a5302181 LG |
4589 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4590 | * do any widget power switching. | |
4591 | */ | |
ce6120cc LG |
4592 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4593 | const char *pin) | |
a5302181 | 4594 | { |
11391100 CK |
4595 | int ret; |
4596 | ||
4597 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4598 | ||
4599 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4600 | ||
4601 | mutex_unlock(&dapm->card->dapm_mutex); | |
4602 | ||
4603 | return ret; | |
2b97eabc | 4604 | } |
a5302181 | 4605 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4606 | |
11391100 CK |
4607 | /** |
4608 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4609 | * @dapm: DAPM context | |
4610 | * @pin: pin name | |
4611 | * | |
4612 | * Marks the specified pin as being not connected, disabling it along | |
4613 | * any parent or child widgets. At present this is identical to | |
4614 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4615 | * additional things such as disabling controls which only affect | |
4616 | * paths through the pin. | |
4617 | * | |
4618 | * Requires external locking. | |
4619 | * | |
4620 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4621 | * do any widget power switching. | |
4622 | */ | |
4623 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4624 | const char *pin) | |
4625 | { | |
4626 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4627 | } | |
4628 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4629 | ||
5817b52a MB |
4630 | /** |
4631 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4632 | * @dapm: DAPM context |
5817b52a MB |
4633 | * @pin: pin name |
4634 | * | |
4635 | * Marks the specified pin as being not connected, disabling it along | |
4636 | * any parent or child widgets. At present this is identical to | |
4637 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4638 | * additional things such as disabling controls which only affect | |
4639 | * paths through the pin. | |
4640 | * | |
4641 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4642 | * do any widget power switching. | |
4643 | */ | |
ce6120cc | 4644 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4645 | { |
11391100 CK |
4646 | int ret; |
4647 | ||
4648 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4649 | ||
4650 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4651 | ||
4652 | mutex_unlock(&dapm->card->dapm_mutex); | |
4653 | ||
4654 | return ret; | |
5817b52a MB |
4655 | } |
4656 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4657 | ||
eeec12bf | 4658 | /** |
a5302181 | 4659 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4660 | * @dapm: DAPM context |
a5302181 | 4661 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4662 | * |
a5302181 | 4663 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4664 | * |
a5302181 | 4665 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4666 | */ |
ce6120cc LG |
4667 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4668 | const char *pin) | |
eeec12bf | 4669 | { |
91a5fca4 | 4670 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4671 | |
91a5fca4 LPC |
4672 | if (w) |
4673 | return w->connected; | |
a68b38ad | 4674 | |
eeec12bf GG |
4675 | return 0; |
4676 | } | |
a5302181 | 4677 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4678 | |
1547aba9 MB |
4679 | /** |
4680 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4681 | * @dapm: DAPM context |
1547aba9 MB |
4682 | * @pin: audio signal pin endpoint (or start point) |
4683 | * | |
4684 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4685 | * system is disabled a path between two endpoints flagged as ignoring | |
4686 | * suspend will not be disabled. The path must already be enabled via | |
4687 | * normal means at suspend time, it will not be turned on if it was not | |
4688 | * already enabled. | |
4689 | */ | |
ce6120cc LG |
4690 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4691 | const char *pin) | |
1547aba9 | 4692 | { |
91a5fca4 | 4693 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4694 | |
91a5fca4 | 4695 | if (!w) { |
30a6a1a4 | 4696 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4697 | return -EINVAL; |
1547aba9 MB |
4698 | } |
4699 | ||
91a5fca4 LPC |
4700 | w->ignore_suspend = 1; |
4701 | ||
4702 | return 0; | |
1547aba9 MB |
4703 | } |
4704 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4705 | ||
2b97eabc RP |
4706 | /** |
4707 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4708 | * @dapm: DAPM context |
2b97eabc RP |
4709 | * |
4710 | * Free all dapm widgets and resources. | |
4711 | */ | |
ce6120cc | 4712 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4713 | { |
6c45e126 | 4714 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4715 | dapm_free_widgets(dapm); |
7be31be8 | 4716 | list_del(&dapm->list); |
2b97eabc RP |
4717 | } |
4718 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4719 | ||
95c267dd KM |
4720 | void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm, |
4721 | struct snd_soc_card *card, | |
4722 | struct snd_soc_component *component) | |
4723 | { | |
4724 | dapm->card = card; | |
4725 | dapm->component = component; | |
4726 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
4727 | ||
4728 | if (component) { | |
4729 | dapm->dev = component->dev; | |
4730 | dapm->idle_bias_off = !component->driver->idle_bias_on, | |
4731 | dapm->suspend_bias_off = component->driver->suspend_bias_off; | |
4732 | } else { | |
4733 | dapm->dev = card->dev; | |
4734 | } | |
4735 | ||
4736 | INIT_LIST_HEAD(&dapm->list); | |
4737 | list_add(&dapm->list, &card->dapm_list); | |
4738 | } | |
4739 | EXPORT_SYMBOL_GPL(snd_soc_dapm_init); | |
4740 | ||
57996358 | 4741 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4742 | { |
01005a72 | 4743 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4744 | struct snd_soc_dapm_widget *w; |
4745 | LIST_HEAD(down_list); | |
4746 | int powerdown = 0; | |
4747 | ||
01005a72 LG |
4748 | mutex_lock(&card->dapm_mutex); |
4749 | ||
97c866de JN |
4750 | list_for_each_entry(w, &dapm->card->widgets, list) { |
4751 | if (w->dapm != dapm) | |
4752 | continue; | |
51737470 | 4753 | if (w->power) { |
828a842f | 4754 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 4755 | w->power = 0; |
51737470 MB |
4756 | powerdown = 1; |
4757 | } | |
4758 | } | |
4759 | ||
4760 | /* If there were no widgets to power down we're already in | |
4761 | * standby. | |
4762 | */ | |
4763 | if (powerdown) { | |
7679e42e MB |
4764 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4765 | snd_soc_dapm_set_bias_level(dapm, | |
4766 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4767 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4768 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4769 | snd_soc_dapm_set_bias_level(dapm, | |
4770 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4771 | } |
01005a72 LG |
4772 | |
4773 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4774 | } |
4775 | ||
4776 | /* | |
4777 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4778 | */ | |
4779 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4780 | { | |
57996358 | 4781 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4782 | |
57996358 | 4783 | list_for_each_entry(dapm, &card->dapm_list, list) { |
17282ba4 XX |
4784 | if (dapm != &card->dapm) { |
4785 | soc_dapm_shutdown_dapm(dapm); | |
4786 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4787 | snd_soc_dapm_set_bias_level(dapm, | |
4788 | SND_SOC_BIAS_OFF); | |
4789 | } | |
ce6120cc | 4790 | } |
17282ba4 XX |
4791 | |
4792 | soc_dapm_shutdown_dapm(&card->dapm); | |
4793 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4794 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4795 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4796 | } |
4797 | ||
2b97eabc | 4798 | /* Module information */ |
d331124d | 4799 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4800 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4801 | MODULE_LICENSE("GPL"); |