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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 | ||
14596692 | 305 | for_each_card_widgets(card, w) { |
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; | |
ebf14747 | 426 | template.mask = e->mask; |
561ed680 CK |
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 | ||
ebf14747 GL |
549 | if (data->widget) { |
550 | switch (dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->id) { | |
551 | case snd_soc_dapm_switch: | |
552 | case snd_soc_dapm_mixer: | |
553 | case snd_soc_dapm_mixer_named_ctl: | |
554 | data->widget->on_val = value & data->widget->mask; | |
555 | break; | |
556 | case snd_soc_dapm_demux: | |
557 | case snd_soc_dapm_mux: | |
558 | data->widget->on_val = value >> data->widget->shift; | |
559 | break; | |
560 | default: | |
561 | data->widget->on_val = value; | |
562 | break; | |
563 | } | |
564 | } | |
57295073 | 565 | |
cf7c1de2 LPC |
566 | data->value = value; |
567 | ||
568 | return true; | |
569 | } | |
570 | ||
93e39a11 M |
571 | /** |
572 | * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a | |
573 | * kcontrol | |
574 | * @kcontrol: The kcontrol | |
575 | */ | |
576 | struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget( | |
577 | struct snd_kcontrol *kcontrol) | |
578 | { | |
579 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]; | |
580 | } | |
581 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget); | |
582 | ||
ce0fc93a LPC |
583 | /** |
584 | * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a | |
585 | * kcontrol | |
586 | * @kcontrol: The kcontrol | |
587 | * | |
588 | * Note: This function must only be used on kcontrols that are known to have | |
589 | * been registered for a CODEC. Otherwise the behaviour is undefined. | |
590 | */ | |
591 | struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( | |
592 | struct snd_kcontrol *kcontrol) | |
593 | { | |
594 | return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->dapm; | |
595 | } | |
596 | EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_dapm); | |
597 | ||
6c120e19 LG |
598 | static void dapm_reset(struct snd_soc_card *card) |
599 | { | |
600 | struct snd_soc_dapm_widget *w; | |
601 | ||
f9fa2b18 MB |
602 | lockdep_assert_held(&card->dapm_mutex); |
603 | ||
6c120e19 LG |
604 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
605 | ||
14596692 | 606 | for_each_card_widgets(card, w) { |
39eb5fd1 | 607 | w->new_power = w->power; |
6c120e19 | 608 | w->power_checked = false; |
6c120e19 LG |
609 | } |
610 | } | |
611 | ||
94f99c87 LPC |
612 | static const char *soc_dapm_prefix(struct snd_soc_dapm_context *dapm) |
613 | { | |
614 | if (!dapm->component) | |
615 | return NULL; | |
616 | return dapm->component->name_prefix; | |
617 | } | |
618 | ||
ce0fc93a | 619 | static int soc_dapm_read(struct snd_soc_dapm_context *dapm, int reg, |
f7d3c170 | 620 | unsigned int *value) |
0445bdf4 | 621 | { |
ce0fc93a | 622 | if (!dapm->component) |
e2c330b9 | 623 | return -EIO; |
ce0fc93a | 624 | return snd_soc_component_read(dapm->component, reg, value); |
49575fb5 LG |
625 | } |
626 | ||
ce0fc93a | 627 | static int soc_dapm_update_bits(struct snd_soc_dapm_context *dapm, |
e2c330b9 | 628 | int reg, unsigned int mask, unsigned int value) |
49575fb5 | 629 | { |
ce0fc93a | 630 | if (!dapm->component) |
e2c330b9 | 631 | return -EIO; |
fcf6c5ea MB |
632 | return snd_soc_component_update_bits(dapm->component, reg, |
633 | mask, value); | |
49575fb5 LG |
634 | } |
635 | ||
ce0fc93a LPC |
636 | static int soc_dapm_test_bits(struct snd_soc_dapm_context *dapm, |
637 | int reg, unsigned int mask, unsigned int value) | |
638 | { | |
639 | if (!dapm->component) | |
640 | return -EIO; | |
641 | return snd_soc_component_test_bits(dapm->component, reg, mask, value); | |
642 | } | |
643 | ||
eb270e98 MB |
644 | static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) |
645 | { | |
e2c330b9 LPC |
646 | if (dapm->component) |
647 | snd_soc_component_async_complete(dapm->component); | |
0445bdf4 LG |
648 | } |
649 | ||
45a110a1 CK |
650 | static struct snd_soc_dapm_widget * |
651 | dapm_wcache_lookup(struct snd_soc_dapm_wcache *wcache, const char *name) | |
652 | { | |
653 | struct snd_soc_dapm_widget *w = wcache->widget; | |
654 | struct list_head *wlist; | |
655 | const int depth = 2; | |
656 | int i = 0; | |
657 | ||
658 | if (w) { | |
659 | wlist = &w->dapm->card->widgets; | |
660 | ||
661 | list_for_each_entry_from(w, wlist, list) { | |
662 | if (!strcmp(name, w->name)) | |
663 | return w; | |
664 | ||
665 | if (++i == depth) | |
666 | break; | |
667 | } | |
668 | } | |
669 | ||
670 | return NULL; | |
671 | } | |
672 | ||
673 | static inline void dapm_wcache_update(struct snd_soc_dapm_wcache *wcache, | |
674 | struct snd_soc_dapm_widget *w) | |
675 | { | |
676 | wcache->widget = w; | |
677 | } | |
678 | ||
fa880775 LPC |
679 | /** |
680 | * snd_soc_dapm_force_bias_level() - Sets the DAPM bias level | |
681 | * @dapm: The DAPM context for which to set the level | |
682 | * @level: The level to set | |
683 | * | |
684 | * Forces the DAPM bias level to a specific state. It will call the bias level | |
685 | * callback of DAPM context with the specified level. This will even happen if | |
686 | * the context is already at the same level. Furthermore it will not go through | |
687 | * the normal bias level sequencing, meaning any intermediate states between the | |
688 | * current and the target state will not be entered. | |
689 | * | |
690 | * Note that the change in bias level is only temporary and the next time | |
691 | * snd_soc_dapm_sync() is called the state will be set to the level as | |
692 | * determined by the DAPM core. The function is mainly intended to be used to | |
693 | * used during probe or resume from suspend to power up the device so | |
694 | * initialization can be done, before the DAPM core takes over. | |
695 | */ | |
696 | int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, | |
697 | enum snd_soc_bias_level level) | |
698 | { | |
699 | int ret = 0; | |
700 | ||
7951b146 KM |
701 | if (dapm->component) |
702 | ret = snd_soc_component_set_bias_level(dapm->component, level); | |
fa880775 | 703 | |
f4bf8d77 LPC |
704 | if (ret == 0) |
705 | dapm->bias_level = level; | |
706 | ||
fa880775 LPC |
707 | return ret; |
708 | } | |
709 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_bias_level); | |
710 | ||
452c5eaa MB |
711 | /** |
712 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 713 | * @dapm: DAPM context |
452c5eaa MB |
714 | * @level: level to configure |
715 | * | |
716 | * Configure the bias (power) levels for the SoC audio device. | |
717 | * | |
718 | * Returns 0 for success else error. | |
719 | */ | |
ed5a4c47 | 720 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 721 | enum snd_soc_bias_level level) |
452c5eaa | 722 | { |
ed5a4c47 | 723 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
724 | int ret = 0; |
725 | ||
84e90930 MB |
726 | trace_snd_soc_bias_level_start(card, level); |
727 | ||
39caefda | 728 | ret = snd_soc_card_set_bias_level(card, dapm, level); |
171ec6b0 MB |
729 | if (ret != 0) |
730 | goto out; | |
731 | ||
fa880775 LPC |
732 | if (!card || dapm != &card->dapm) |
733 | ret = snd_soc_dapm_force_bias_level(dapm, level); | |
4123128e | 734 | |
171ec6b0 MB |
735 | if (ret != 0) |
736 | goto out; | |
737 | ||
d41278ea | 738 | ret = snd_soc_card_set_bias_level_post(card, dapm, level); |
171ec6b0 | 739 | out: |
84e90930 MB |
740 | trace_snd_soc_bias_level_done(card, level); |
741 | ||
452c5eaa MB |
742 | return ret; |
743 | } | |
744 | ||
74b8f955 | 745 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 746 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
d714f97c LPC |
747 | struct snd_soc_dapm_path *path, const char *control_name, |
748 | struct snd_soc_dapm_widget *w) | |
2b97eabc | 749 | { |
d714f97c | 750 | const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0]; |
2b97eabc | 751 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
234c0b8f | 752 | unsigned int val, item; |
2b97eabc | 753 | int i; |
24ff33ac | 754 | |
234c0b8f | 755 | if (e->reg != SND_SOC_NOPM) { |
ce0fc93a | 756 | soc_dapm_read(dapm, e->reg, &val); |
234c0b8f LPC |
757 | val = (val >> e->shift_l) & e->mask; |
758 | item = snd_soc_enum_val_to_item(e, val); | |
759 | } else { | |
24ff33ac DP |
760 | /* since a virtual mux has no backing registers to |
761 | * decide which path to connect, it will try to match | |
762 | * with the first enumeration. This is to ensure | |
763 | * that the default mux choice (the first) will be | |
764 | * correctly powered up during initialization. | |
765 | */ | |
234c0b8f | 766 | item = 0; |
24ff33ac | 767 | } |
2e72f8e3 | 768 | |
f9e0b4af XY |
769 | i = match_string(e->texts, e->items, control_name); |
770 | if (i < 0) | |
771 | return -ENODEV; | |
772 | ||
773 | path->name = e->texts[i]; | |
774 | path->connect = (i == item); | |
775 | return 0; | |
2b97eabc | 776 | |
2b97eabc RP |
777 | } |
778 | ||
234c0b8f | 779 | /* set up initial codec paths */ |
e7aa450f CYT |
780 | static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i, |
781 | int nth_path) | |
234c0b8f LPC |
782 | { |
783 | struct soc_mixer_control *mc = (struct soc_mixer_control *) | |
5fe5b767 | 784 | p->sink->kcontrol_news[i].private_value; |
234c0b8f LPC |
785 | unsigned int reg = mc->reg; |
786 | unsigned int shift = mc->shift; | |
787 | unsigned int max = mc->max; | |
788 | unsigned int mask = (1 << fls(max)) - 1; | |
789 | unsigned int invert = mc->invert; | |
790 | unsigned int val; | |
791 | ||
792 | if (reg != SND_SOC_NOPM) { | |
5fe5b767 | 793 | soc_dapm_read(p->sink->dapm, reg, &val); |
e7aa450f CYT |
794 | /* |
795 | * The nth_path argument allows this function to know | |
796 | * which path of a kcontrol it is setting the initial | |
797 | * status for. Ideally this would support any number | |
798 | * of paths and channels. But since kcontrols only come | |
799 | * in mono and stereo variants, we are limited to 2 | |
800 | * channels. | |
801 | * | |
802 | * The following code assumes for stereo controls the | |
803 | * first path is the left channel, and all remaining | |
804 | * paths are the right channel. | |
805 | */ | |
806 | if (snd_soc_volsw_is_stereo(mc) && nth_path > 0) { | |
807 | if (reg != mc->rreg) | |
808 | soc_dapm_read(p->sink->dapm, mc->rreg, &val); | |
809 | val = (val >> mc->rshift) & mask; | |
810 | } else { | |
811 | val = (val >> shift) & mask; | |
812 | } | |
234c0b8f LPC |
813 | if (invert) |
814 | val = max - val; | |
815 | p->connect = !!val; | |
816 | } else { | |
3bbbb772 | 817 | /* since a virtual mixer has no backing registers to |
818 | * decide which path to connect, it will try to match | |
819 | * with initial state. This is to ensure | |
820 | * that the default mixer choice will be | |
821 | * correctly powered up during initialization. | |
822 | */ | |
823 | p->connect = invert; | |
234c0b8f LPC |
824 | } |
825 | } | |
826 | ||
74b8f955 | 827 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 828 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
829 | struct snd_soc_dapm_path *path, const char *control_name) |
830 | { | |
e7aa450f | 831 | int i, nth_path = 0; |
2b97eabc RP |
832 | |
833 | /* search for mixer kcontrol */ | |
5fe5b767 LPC |
834 | for (i = 0; i < path->sink->num_kcontrols; i++) { |
835 | if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) { | |
836 | path->name = path->sink->kcontrol_news[i].name; | |
e7aa450f | 837 | dapm_set_mixer_path_status(path, i, nth_path++); |
2b97eabc RP |
838 | return 0; |
839 | } | |
840 | } | |
841 | return -ENODEV; | |
842 | } | |
843 | ||
af46800b | 844 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 845 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
846 | const struct snd_kcontrol_new *kcontrol_new, |
847 | struct snd_kcontrol **kcontrol) | |
848 | { | |
849 | struct snd_soc_dapm_widget *w; | |
850 | int i; | |
851 | ||
852 | *kcontrol = NULL; | |
853 | ||
14596692 | 854 | for_each_card_widgets(dapm->card, w) { |
1007da06 SW |
855 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
856 | continue; | |
af46800b SW |
857 | for (i = 0; i < w->num_kcontrols; i++) { |
858 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
859 | if (w->kcontrols) | |
860 | *kcontrol = w->kcontrols[i]; | |
861 | return 1; | |
862 | } | |
863 | } | |
864 | } | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
85762e71 SW |
869 | /* |
870 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
871 | * create it. Either way, add the widget into the control's widget list | |
872 | */ | |
19a2557b | 873 | static int dapm_create_or_share_kcontrol(struct snd_soc_dapm_widget *w, |
946d92a1 | 874 | int kci) |
2b97eabc | 875 | { |
4b80b8c2 | 876 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 877 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 878 | const char *prefix; |
85762e71 SW |
879 | size_t prefix_len; |
880 | int shared; | |
881 | struct snd_kcontrol *kcontrol; | |
85762e71 | 882 | bool wname_in_long_name, kcname_in_long_name; |
e5092c96 | 883 | char *long_name = NULL; |
85762e71 | 884 | const char *name; |
e5092c96 | 885 | int ret = 0; |
efb7ac3f | 886 | |
94f99c87 | 887 | prefix = soc_dapm_prefix(dapm); |
3e5ff4df MB |
888 | if (prefix) |
889 | prefix_len = strlen(prefix) + 1; | |
890 | else | |
891 | prefix_len = 0; | |
892 | ||
85762e71 SW |
893 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
894 | &kcontrol); | |
2b97eabc | 895 | |
85762e71 SW |
896 | if (!kcontrol) { |
897 | if (shared) { | |
898 | wname_in_long_name = false; | |
899 | kcname_in_long_name = true; | |
900 | } else { | |
901 | switch (w->id) { | |
902 | case snd_soc_dapm_switch: | |
903 | case snd_soc_dapm_mixer: | |
19a2557b | 904 | case snd_soc_dapm_pga: |
882c8b4a | 905 | case snd_soc_dapm_effect: |
a3930ed0 | 906 | case snd_soc_dapm_out_drv: |
85762e71 SW |
907 | wname_in_long_name = true; |
908 | kcname_in_long_name = true; | |
909 | break; | |
910 | case snd_soc_dapm_mixer_named_ctl: | |
911 | wname_in_long_name = false; | |
912 | kcname_in_long_name = true; | |
913 | break; | |
d714f97c | 914 | case snd_soc_dapm_demux: |
85762e71 | 915 | case snd_soc_dapm_mux: |
85762e71 SW |
916 | wname_in_long_name = true; |
917 | kcname_in_long_name = false; | |
918 | break; | |
919 | default: | |
85762e71 | 920 | return -EINVAL; |
82cd8764 | 921 | } |
85762e71 SW |
922 | } |
923 | ||
924 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
925 | /* |
926 | * The control will get a prefix from the control | |
927 | * creation process but we're also using the same | |
928 | * prefix for widgets so cut the prefix off the | |
929 | * front of the widget name. | |
ca9c1aae | 930 | */ |
2b581074 | 931 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
932 | w->name + prefix_len, |
933 | w->kcontrol_news[kci].name); | |
e84357f7 | 934 | if (long_name == NULL) |
2b581074 | 935 | return -ENOMEM; |
85762e71 SW |
936 | |
937 | name = long_name; | |
938 | } else if (wname_in_long_name) { | |
939 | long_name = NULL; | |
940 | name = w->name + prefix_len; | |
941 | } else { | |
942 | long_name = NULL; | |
943 | name = w->kcontrol_news[kci].name; | |
944 | } | |
ca9c1aae | 945 | |
e84357f7 | 946 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, |
85762e71 | 947 | prefix); |
e5092c96 DM |
948 | if (!kcontrol) { |
949 | ret = -ENOMEM; | |
950 | goto exit_free; | |
951 | } | |
952 | ||
9356e9d5 | 953 | kcontrol->private_free = dapm_kcontrol_free; |
e84357f7 | 954 | |
41d80025 | 955 | ret = dapm_kcontrol_data_alloc(w, kcontrol, name); |
e84357f7 LPC |
956 | if (ret) { |
957 | snd_ctl_free_one(kcontrol); | |
e5092c96 | 958 | goto exit_free; |
e84357f7 LPC |
959 | } |
960 | ||
85762e71 SW |
961 | ret = snd_ctl_add(card, kcontrol); |
962 | if (ret < 0) { | |
963 | dev_err(dapm->dev, | |
964 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
965 | w->name, name, ret); | |
e5092c96 | 966 | goto exit_free; |
85762e71 | 967 | } |
85762e71 | 968 | } |
2b97eabc | 969 | |
2c75bdf3 | 970 | ret = dapm_kcontrol_add_widget(kcontrol, w); |
e5092c96 DM |
971 | if (ret == 0) |
972 | w->kcontrols[kci] = kcontrol; | |
2c75bdf3 | 973 | |
e5092c96 DM |
974 | exit_free: |
975 | kfree(long_name); | |
ca9c1aae | 976 | |
e5092c96 | 977 | return ret; |
85762e71 | 978 | } |
219b93f5 | 979 | |
85762e71 SW |
980 | /* create new dapm mixer control */ |
981 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
982 | { | |
983 | int i, ret; | |
984 | struct snd_soc_dapm_path *path; | |
561ed680 | 985 | struct dapm_kcontrol_data *data; |
85762e71 SW |
986 | |
987 | /* add kcontrol */ | |
988 | for (i = 0; i < w->num_kcontrols; i++) { | |
989 | /* match name */ | |
e63bfd45 | 990 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
85762e71 SW |
991 | /* mixer/mux paths name must match control name */ |
992 | if (path->name != (char *)w->kcontrol_news[i].name) | |
993 | continue; | |
994 | ||
561ed680 | 995 | if (!w->kcontrols[i]) { |
19a2557b | 996 | ret = dapm_create_or_share_kcontrol(w, i); |
561ed680 CK |
997 | if (ret < 0) |
998 | return ret; | |
2b97eabc | 999 | } |
85762e71 | 1000 | |
946d92a1 | 1001 | dapm_kcontrol_add_path(w->kcontrols[i], path); |
561ed680 CK |
1002 | |
1003 | data = snd_kcontrol_chip(w->kcontrols[i]); | |
1004 | if (data->widget) | |
1005 | snd_soc_dapm_add_path(data->widget->dapm, | |
1006 | data->widget, | |
1007 | path->source, | |
1008 | NULL, NULL); | |
2b97eabc RP |
1009 | } |
1010 | } | |
85762e71 SW |
1011 | |
1012 | return 0; | |
2b97eabc RP |
1013 | } |
1014 | ||
1015 | /* create new dapm mux control */ | |
4b80b8c2 | 1016 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 1017 | { |
4b80b8c2 | 1018 | struct snd_soc_dapm_context *dapm = w->dapm; |
a3423b02 | 1019 | enum snd_soc_dapm_direction dir; |
85762e71 | 1020 | struct snd_soc_dapm_path *path; |
d714f97c | 1021 | const char *type; |
af46800b | 1022 | int ret; |
2b97eabc | 1023 | |
d714f97c LPC |
1024 | switch (w->id) { |
1025 | case snd_soc_dapm_mux: | |
a3423b02 | 1026 | dir = SND_SOC_DAPM_DIR_OUT; |
d714f97c LPC |
1027 | type = "mux"; |
1028 | break; | |
1029 | case snd_soc_dapm_demux: | |
a3423b02 | 1030 | dir = SND_SOC_DAPM_DIR_IN; |
d714f97c LPC |
1031 | type = "demux"; |
1032 | break; | |
1033 | default: | |
1034 | return -EINVAL; | |
1035 | } | |
1036 | ||
af46800b SW |
1037 | if (w->num_kcontrols != 1) { |
1038 | dev_err(dapm->dev, | |
d714f97c | 1039 | "ASoC: %s %s has incorrect number of controls\n", type, |
af46800b | 1040 | w->name); |
2b97eabc RP |
1041 | return -EINVAL; |
1042 | } | |
1043 | ||
a3423b02 | 1044 | if (list_empty(&w->edges[dir])) { |
d714f97c | 1045 | dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name); |
85762e71 | 1046 | return -EINVAL; |
af46800b | 1047 | } |
ce6120cc | 1048 | |
19a2557b | 1049 | ret = dapm_create_or_share_kcontrol(w, 0); |
85762e71 SW |
1050 | if (ret < 0) |
1051 | return ret; | |
fad59888 | 1052 | |
a3423b02 LPC |
1053 | snd_soc_dapm_widget_for_each_path(w, dir, path) { |
1054 | if (path->name) | |
1055 | dapm_kcontrol_add_path(w->kcontrols[0], path); | |
98407efc | 1056 | } |
2b97eabc | 1057 | |
af46800b | 1058 | return 0; |
2b97eabc RP |
1059 | } |
1060 | ||
1061 | /* create new dapm volume control */ | |
4b80b8c2 | 1062 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 1063 | { |
19a2557b JK |
1064 | int i, ret; |
1065 | ||
1066 | for (i = 0; i < w->num_kcontrols; i++) { | |
1067 | ret = dapm_create_or_share_kcontrol(w, i); | |
1068 | if (ret < 0) | |
1069 | return ret; | |
1070 | } | |
2b97eabc | 1071 | |
a6c65736 | 1072 | return 0; |
2b97eabc RP |
1073 | } |
1074 | ||
c6615082 NO |
1075 | /* create new dapm dai link control */ |
1076 | static int dapm_new_dai_link(struct snd_soc_dapm_widget *w) | |
1077 | { | |
1078 | int i, ret; | |
1079 | struct snd_kcontrol *kcontrol; | |
1080 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1081 | struct snd_card *card = dapm->card->snd_card; | |
243bcfaf | 1082 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 NO |
1083 | |
1084 | /* create control for links with > 1 config */ | |
243bcfaf | 1085 | if (rtd->dai_link->num_params <= 1) |
c6615082 NO |
1086 | return 0; |
1087 | ||
1088 | /* add kcontrol */ | |
1089 | for (i = 0; i < w->num_kcontrols; i++) { | |
1090 | kcontrol = snd_soc_cnew(&w->kcontrol_news[i], w, | |
1091 | w->name, NULL); | |
1092 | ret = snd_ctl_add(card, kcontrol); | |
1093 | if (ret < 0) { | |
1094 | dev_err(dapm->dev, | |
1095 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
1096 | w->name, w->kcontrol_news[i].name, ret); | |
1097 | return ret; | |
1098 | } | |
1099 | kcontrol->private_data = w; | |
1100 | w->kcontrols[i] = kcontrol; | |
1101 | } | |
1102 | ||
1103 | return 0; | |
1104 | } | |
1105 | ||
9949788b MB |
1106 | /* We implement power down on suspend by checking the power state of |
1107 | * the ALSA card - when we are suspending the ALSA state for the card | |
1108 | * is set to D3. | |
1109 | */ | |
1110 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
1111 | { | |
12ea2c78 | 1112 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 1113 | |
f0fba2ad | 1114 | switch (level) { |
9949788b MB |
1115 | case SNDRV_CTL_POWER_D3hot: |
1116 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 1117 | if (widget->ignore_suspend) |
30a6a1a4 | 1118 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 1119 | widget->name); |
1547aba9 | 1120 | return widget->ignore_suspend; |
9949788b MB |
1121 | default: |
1122 | return 1; | |
1123 | } | |
1124 | } | |
1125 | ||
52645e33 KM |
1126 | static void dapm_widget_list_free(struct snd_soc_dapm_widget_list **list) |
1127 | { | |
1128 | kfree(*list); | |
1129 | } | |
1130 | ||
1ce43acf LPC |
1131 | static int dapm_widget_list_create(struct snd_soc_dapm_widget_list **list, |
1132 | struct list_head *widgets) | |
ec2e3031 | 1133 | { |
1ce43acf LPC |
1134 | struct snd_soc_dapm_widget *w; |
1135 | struct list_head *it; | |
1136 | unsigned int size = 0; | |
1137 | unsigned int i = 0; | |
ec2e3031 | 1138 | |
1ce43acf LPC |
1139 | list_for_each(it, widgets) |
1140 | size++; | |
ec2e3031 | 1141 | |
acafe7e3 | 1142 | *list = kzalloc(struct_size(*list, widgets, size), GFP_KERNEL); |
1ce43acf | 1143 | if (*list == NULL) |
ec2e3031 | 1144 | return -ENOMEM; |
ec2e3031 | 1145 | |
1ce43acf LPC |
1146 | list_for_each_entry(w, widgets, work_list) |
1147 | (*list)->widgets[i++] = w; | |
ec2e3031 | 1148 | |
1ce43acf LPC |
1149 | (*list)->num_widgets = i; |
1150 | ||
1151 | return 0; | |
ec2e3031 LG |
1152 | } |
1153 | ||
872f3ac5 SM |
1154 | /* |
1155 | * Recursively reset the cached number of inputs or outputs for the specified | |
1156 | * widget and all widgets that can be reached via incoming or outcoming paths | |
1157 | * from the widget. | |
1158 | */ | |
1159 | static void invalidate_paths_ep(struct snd_soc_dapm_widget *widget, | |
1160 | enum snd_soc_dapm_direction dir) | |
1161 | { | |
1162 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
1163 | struct snd_soc_dapm_path *path; | |
1164 | ||
1165 | widget->endpoints[dir] = -1; | |
1166 | ||
1167 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { | |
1168 | if (path->weak || path->is_supply) | |
1169 | continue; | |
1170 | ||
1171 | if (path->walking) | |
1172 | return; | |
1173 | ||
1174 | if (path->connect) { | |
1175 | path->walking = 1; | |
1176 | invalidate_paths_ep(path->node[dir], dir); | |
1177 | path->walking = 0; | |
1178 | } | |
1179 | } | |
1180 | } | |
1181 | ||
2b97eabc | 1182 | /* |
a3423b02 LPC |
1183 | * Common implementation for is_connected_output_ep() and |
1184 | * is_connected_input_ep(). The function is inlined since the combined size of | |
1185 | * the two specialized functions is only marginally larger then the size of the | |
1186 | * generic function and at the same time the fast path of the specialized | |
1187 | * functions is significantly smaller than the generic function. | |
2b97eabc | 1188 | */ |
a3423b02 LPC |
1189 | static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget, |
1190 | struct list_head *list, enum snd_soc_dapm_direction dir, | |
6742064a PS |
1191 | int (*fn)(struct snd_soc_dapm_widget *, struct list_head *, |
1192 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1193 | enum snd_soc_dapm_direction)), | |
1194 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1195 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1196 | { |
a3423b02 | 1197 | enum snd_soc_dapm_direction rdir = SND_SOC_DAPM_DIR_REVERSE(dir); |
2b97eabc RP |
1198 | struct snd_soc_dapm_path *path; |
1199 | int con = 0; | |
1200 | ||
a3423b02 LPC |
1201 | if (widget->endpoints[dir] >= 0) |
1202 | return widget->endpoints[dir]; | |
024dc078 | 1203 | |
de02d078 MB |
1204 | DAPM_UPDATE_STAT(widget, path_checks); |
1205 | ||
1ce43acf LPC |
1206 | /* do we need to add this widget to the list ? */ |
1207 | if (list) | |
1208 | list_add_tail(&widget->work_list, list); | |
1209 | ||
09464974 | 1210 | if (custom_stop_condition && custom_stop_condition(widget, dir)) { |
8dd26dff CK |
1211 | list = NULL; |
1212 | custom_stop_condition = NULL; | |
09464974 | 1213 | } |
6742064a | 1214 | |
a3423b02 LPC |
1215 | if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) { |
1216 | widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget); | |
1217 | return widget->endpoints[dir]; | |
2b97eabc RP |
1218 | } |
1219 | ||
a3423b02 | 1220 | snd_soc_dapm_widget_for_each_path(widget, rdir, path) { |
e56235e0 MB |
1221 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
1222 | ||
c1862c8b | 1223 | if (path->weak || path->is_supply) |
bf3a9e13 MB |
1224 | continue; |
1225 | ||
8af294b4 MB |
1226 | if (path->walking) |
1227 | return 1; | |
1228 | ||
a3423b02 | 1229 | trace_snd_soc_dapm_path(widget, dir, path); |
ec2e3031 | 1230 | |
7ddd4cd5 | 1231 | if (path->connect) { |
8af294b4 | 1232 | path->walking = 1; |
6742064a | 1233 | con += fn(path->node[dir], list, custom_stop_condition); |
8af294b4 | 1234 | path->walking = 0; |
2b97eabc RP |
1235 | } |
1236 | } | |
1237 | ||
a3423b02 | 1238 | widget->endpoints[dir] = con; |
024dc078 | 1239 | |
2b97eabc RP |
1240 | return con; |
1241 | } | |
1242 | ||
a3423b02 LPC |
1243 | /* |
1244 | * Recursively check for a completed path to an active or physically connected | |
1245 | * output widget. Returns number of complete paths. | |
6742064a PS |
1246 | * |
1247 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1248 | * This function takes the dapm widget currently being examined and the walk | |
8dd26dff CK |
1249 | * direction as an arguments, it should return true if widgets from that point |
1250 | * in the graph onwards should not be added to the widget list. | |
a3423b02 LPC |
1251 | */ |
1252 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, | |
6742064a PS |
1253 | struct list_head *list, |
1254 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1255 | enum snd_soc_dapm_direction)) | |
a3423b02 LPC |
1256 | { |
1257 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT, | |
6742064a | 1258 | is_connected_output_ep, custom_stop_condition); |
a3423b02 LPC |
1259 | } |
1260 | ||
2b97eabc RP |
1261 | /* |
1262 | * Recursively check for a completed path to an active or physically connected | |
1263 | * input widget. Returns number of complete paths. | |
6742064a PS |
1264 | * |
1265 | * Optionally, can be supplied with a function acting as a stopping condition. | |
1266 | * This function takes the dapm widget currently being examined and the walk | |
1267 | * direction as an arguments, it should return true if the walk should be | |
1268 | * stopped and false otherwise. | |
2b97eabc | 1269 | */ |
ec2e3031 | 1270 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
6742064a PS |
1271 | struct list_head *list, |
1272 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *i, | |
1273 | enum snd_soc_dapm_direction)) | |
2b97eabc | 1274 | { |
a3423b02 | 1275 | return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN, |
6742064a | 1276 | is_connected_input_ep, custom_stop_condition); |
2b97eabc RP |
1277 | } |
1278 | ||
ec2e3031 LG |
1279 | /** |
1280 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1281 | * @dai: the soc DAI. | |
1282 | * @stream: stream direction. | |
1283 | * @list: list of active widgets for this stream. | |
6742064a PS |
1284 | * @custom_stop_condition: (optional) a function meant to stop the widget graph |
1285 | * walk based on custom logic. | |
ec2e3031 | 1286 | * |
c8046000 | 1287 | * Queries DAPM graph as to whether a valid audio stream path exists for |
ec2e3031 LG |
1288 | * the initial stream specified by name. This takes into account |
1289 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1290 | * | |
6742064a PS |
1291 | * Optionally, can be supplied with a function acting as a stopping condition. |
1292 | * This function takes the dapm widget currently being examined and the walk | |
1293 | * direction as an arguments, it should return true if the walk should be | |
1294 | * stopped and false otherwise. | |
1295 | * | |
ec2e3031 LG |
1296 | * Returns the number of valid paths or negative error. |
1297 | */ | |
1298 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
6742064a PS |
1299 | struct snd_soc_dapm_widget_list **list, |
1300 | bool (*custom_stop_condition)(struct snd_soc_dapm_widget *, | |
1301 | enum snd_soc_dapm_direction)) | |
ec2e3031 | 1302 | { |
313665b9 | 1303 | struct snd_soc_card *card = dai->component->card; |
92a99ea4 | 1304 | struct snd_soc_dapm_widget *w; |
1ce43acf | 1305 | LIST_HEAD(widgets); |
ec2e3031 | 1306 | int paths; |
1ce43acf | 1307 | int ret; |
ec2e3031 LG |
1308 | |
1309 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
92a99ea4 | 1310 | |
872f3ac5 SM |
1311 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
1312 | w = dai->playback_widget; | |
1313 | invalidate_paths_ep(w, SND_SOC_DAPM_DIR_OUT); | |
1314 | paths = is_connected_output_ep(w, &widgets, | |
6742064a | 1315 | custom_stop_condition); |
872f3ac5 SM |
1316 | } else { |
1317 | w = dai->capture_widget; | |
1318 | invalidate_paths_ep(w, SND_SOC_DAPM_DIR_IN); | |
1319 | paths = is_connected_input_ep(w, &widgets, | |
6742064a | 1320 | custom_stop_condition); |
872f3ac5 | 1321 | } |
1ce43acf LPC |
1322 | |
1323 | /* Drop starting point */ | |
1324 | list_del(widgets.next); | |
1325 | ||
1326 | ret = dapm_widget_list_create(list, &widgets); | |
1327 | if (ret) | |
30abbe77 | 1328 | paths = ret; |
ec2e3031 LG |
1329 | |
1330 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1331 | mutex_unlock(&card->dapm_mutex); |
1332 | ||
1333 | return paths; | |
1334 | } | |
1335 | ||
52645e33 KM |
1336 | void snd_soc_dapm_dai_free_widgets(struct snd_soc_dapm_widget_list **list) |
1337 | { | |
1338 | dapm_widget_list_free(list); | |
1339 | } | |
1340 | ||
62ea874a MB |
1341 | /* |
1342 | * Handler for regulator supply widget. | |
1343 | */ | |
1344 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1345 | struct snd_kcontrol *kcontrol, int event) | |
1346 | { | |
c05b84d1 MB |
1347 | int ret; |
1348 | ||
eb270e98 MB |
1349 | soc_dapm_async_complete(w->dapm); |
1350 | ||
c05b84d1 | 1351 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
de9ba98b | 1352 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1353 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1354 | if (ret != 0) |
1355 | dev_warn(w->dapm->dev, | |
30686c35 | 1356 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1357 | w->name, ret); |
1358 | } | |
1359 | ||
a3cc056b | 1360 | return regulator_enable(w->regulator); |
c05b84d1 | 1361 | } else { |
de9ba98b | 1362 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a | 1363 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1364 | if (ret != 0) |
1365 | dev_warn(w->dapm->dev, | |
30686c35 | 1366 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1367 | w->name, ret); |
1368 | } | |
1369 | ||
a3cc056b | 1370 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1371 | } |
62ea874a MB |
1372 | } |
1373 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1374 | ||
5b2d15bb SK |
1375 | /* |
1376 | * Handler for pinctrl widget. | |
1377 | */ | |
1378 | int dapm_pinctrl_event(struct snd_soc_dapm_widget *w, | |
1379 | struct snd_kcontrol *kcontrol, int event) | |
1380 | { | |
1381 | struct snd_soc_dapm_pinctrl_priv *priv = w->priv; | |
1382 | struct pinctrl *p = w->pinctrl; | |
1383 | struct pinctrl_state *s; | |
1384 | ||
1385 | if (!p || !priv) | |
1386 | return -EIO; | |
1387 | ||
1388 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1389 | s = pinctrl_lookup_state(p, priv->active_state); | |
1390 | else | |
1391 | s = pinctrl_lookup_state(p, priv->sleep_state); | |
1392 | ||
1393 | if (IS_ERR(s)) | |
1394 | return PTR_ERR(s); | |
1395 | ||
1396 | return pinctrl_select_state(p, s); | |
1397 | } | |
1398 | EXPORT_SYMBOL_GPL(dapm_pinctrl_event); | |
1399 | ||
d7e7eb91 OL |
1400 | /* |
1401 | * Handler for clock supply widget. | |
1402 | */ | |
1403 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1404 | struct snd_kcontrol *kcontrol, int event) | |
1405 | { | |
1406 | if (!w->clk) | |
1407 | return -EIO; | |
1408 | ||
eb270e98 MB |
1409 | soc_dapm_async_complete(w->dapm); |
1410 | ||
d7e7eb91 | 1411 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1412 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1413 | } else { |
37c1b927 | 1414 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1415 | return 0; |
1416 | } | |
d78b1e43 | 1417 | |
98b3cf12 | 1418 | return 0; |
d7e7eb91 OL |
1419 | } |
1420 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1421 | ||
d805002b MB |
1422 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1423 | { | |
9b8a83b2 MB |
1424 | if (w->power_checked) |
1425 | return w->new_power; | |
1426 | ||
d805002b | 1427 | if (w->force) |
9b8a83b2 | 1428 | w->new_power = 1; |
d805002b | 1429 | else |
9b8a83b2 MB |
1430 | w->new_power = w->power_check(w); |
1431 | ||
1432 | w->power_checked = true; | |
1433 | ||
1434 | return w->new_power; | |
d805002b MB |
1435 | } |
1436 | ||
c8046000 | 1437 | /* Generic check to see if a widget should be powered. */ |
cd0f2d47 MB |
1438 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
1439 | { | |
1440 | int in, out; | |
1441 | ||
de02d078 MB |
1442 | DAPM_UPDATE_STAT(w, power_checks); |
1443 | ||
6742064a PS |
1444 | in = is_connected_input_ep(w, NULL, NULL); |
1445 | out = is_connected_output_ep(w, NULL, NULL); | |
cd0f2d47 MB |
1446 | return out != 0 && in != 0; |
1447 | } | |
1448 | ||
246d0a17 MB |
1449 | /* Check to see if a power supply is needed */ |
1450 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1451 | { | |
1452 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1453 | |
de02d078 MB |
1454 | DAPM_UPDATE_STAT(w, power_checks); |
1455 | ||
246d0a17 | 1456 | /* Check if one of our outputs is connected */ |
e63bfd45 | 1457 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
a8fdac83 MB |
1458 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1459 | ||
bf3a9e13 MB |
1460 | if (path->weak) |
1461 | continue; | |
1462 | ||
215edda3 MB |
1463 | if (path->connected && |
1464 | !path->connected(path->source, path->sink)) | |
1465 | continue; | |
1466 | ||
f68d7e16 MB |
1467 | if (dapm_widget_power_check(path->sink)) |
1468 | return 1; | |
246d0a17 MB |
1469 | } |
1470 | ||
f68d7e16 | 1471 | return 0; |
246d0a17 MB |
1472 | } |
1473 | ||
35c64bca MB |
1474 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1475 | { | |
20bb0184 | 1476 | return w->connected; |
35c64bca MB |
1477 | } |
1478 | ||
38357ab2 MB |
1479 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1480 | struct snd_soc_dapm_widget *b, | |
828a842f | 1481 | bool power_up) |
42aa3418 | 1482 | { |
828a842f MB |
1483 | int *sort; |
1484 | ||
f13d4b5f PLB |
1485 | BUILD_BUG_ON(ARRAY_SIZE(dapm_up_seq) != SND_SOC_DAPM_TYPE_COUNT); |
1486 | BUILD_BUG_ON(ARRAY_SIZE(dapm_down_seq) != SND_SOC_DAPM_TYPE_COUNT); | |
1487 | ||
828a842f MB |
1488 | if (power_up) |
1489 | sort = dapm_up_seq; | |
1490 | else | |
1491 | sort = dapm_down_seq; | |
1492 | ||
f13d4b5f PLB |
1493 | WARN_ONCE(sort[a->id] == 0, "offset a->id %d not initialized\n", a->id); |
1494 | WARN_ONCE(sort[b->id] == 0, "offset b->id %d not initialized\n", b->id); | |
1495 | ||
38357ab2 MB |
1496 | if (sort[a->id] != sort[b->id]) |
1497 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1498 | if (a->subseq != b->subseq) { |
1499 | if (power_up) | |
1500 | return a->subseq - b->subseq; | |
1501 | else | |
1502 | return b->subseq - a->subseq; | |
1503 | } | |
b22ead2a MB |
1504 | if (a->reg != b->reg) |
1505 | return a->reg - b->reg; | |
84dab567 MB |
1506 | if (a->dapm != b->dapm) |
1507 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1508 | |
38357ab2 MB |
1509 | return 0; |
1510 | } | |
42aa3418 | 1511 | |
38357ab2 MB |
1512 | /* Insert a widget in order into a DAPM power sequence. */ |
1513 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1514 | struct list_head *list, | |
828a842f | 1515 | bool power_up) |
38357ab2 MB |
1516 | { |
1517 | struct snd_soc_dapm_widget *w; | |
1518 | ||
1519 | list_for_each_entry(w, list, power_list) | |
828a842f | 1520 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1521 | list_add_tail(&new_widget->power_list, &w->power_list); |
1522 | return; | |
1523 | } | |
1524 | ||
1525 | list_add_tail(&new_widget->power_list, list); | |
1526 | } | |
1527 | ||
95dd5cd6 | 1528 | static void dapm_seq_check_event(struct snd_soc_card *card, |
68f89ad8 MB |
1529 | struct snd_soc_dapm_widget *w, int event) |
1530 | { | |
68f89ad8 MB |
1531 | const char *ev_name; |
1532 | int power, ret; | |
1533 | ||
1534 | switch (event) { | |
1535 | case SND_SOC_DAPM_PRE_PMU: | |
1536 | ev_name = "PRE_PMU"; | |
1537 | power = 1; | |
1538 | break; | |
1539 | case SND_SOC_DAPM_POST_PMU: | |
1540 | ev_name = "POST_PMU"; | |
1541 | power = 1; | |
1542 | break; | |
1543 | case SND_SOC_DAPM_PRE_PMD: | |
1544 | ev_name = "PRE_PMD"; | |
1545 | power = 0; | |
1546 | break; | |
1547 | case SND_SOC_DAPM_POST_PMD: | |
1548 | ev_name = "POST_PMD"; | |
1549 | power = 0; | |
1550 | break; | |
80114129 MB |
1551 | case SND_SOC_DAPM_WILL_PMU: |
1552 | ev_name = "WILL_PMU"; | |
1553 | power = 1; | |
1554 | break; | |
1555 | case SND_SOC_DAPM_WILL_PMD: | |
1556 | ev_name = "WILL_PMD"; | |
1557 | power = 0; | |
1558 | break; | |
68f89ad8 | 1559 | default: |
a6ed0608 | 1560 | WARN(1, "Unknown event %d\n", event); |
68f89ad8 MB |
1561 | return; |
1562 | } | |
1563 | ||
39eb5fd1 | 1564 | if (w->new_power != power) |
68f89ad8 MB |
1565 | return; |
1566 | ||
1567 | if (w->event && (w->event_flags & event)) { | |
95dd5cd6 | 1568 | pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", |
68f89ad8 | 1569 | w->name, ev_name); |
eb270e98 | 1570 | soc_dapm_async_complete(w->dapm); |
84e90930 | 1571 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1572 | ret = w->event(w, NULL, event); |
84e90930 | 1573 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1574 | if (ret < 0) |
95dd5cd6 | 1575 | dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1576 | ev_name, w->name, ret); |
1577 | } | |
1578 | } | |
1579 | ||
b22ead2a | 1580 | /* Apply the coalesced changes from a DAPM sequence */ |
95dd5cd6 | 1581 | static void dapm_seq_run_coalesced(struct snd_soc_card *card, |
b22ead2a | 1582 | struct list_head *pending) |
163cac06 | 1583 | { |
ce0fc93a | 1584 | struct snd_soc_dapm_context *dapm; |
68f89ad8 | 1585 | struct snd_soc_dapm_widget *w; |
de9ba98b | 1586 | int reg; |
b22ead2a MB |
1587 | unsigned int value = 0; |
1588 | unsigned int mask = 0; | |
b22ead2a | 1589 | |
ce0fc93a LPC |
1590 | w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
1591 | reg = w->reg; | |
1592 | dapm = w->dapm; | |
b22ead2a MB |
1593 | |
1594 | list_for_each_entry(w, pending, power_list) { | |
ce0fc93a | 1595 | WARN_ON(reg != w->reg || dapm != w->dapm); |
39eb5fd1 | 1596 | w->power = w->new_power; |
b22ead2a | 1597 | |
de9ba98b LPC |
1598 | mask |= w->mask << w->shift; |
1599 | if (w->power) | |
1600 | value |= w->on_val << w->shift; | |
b22ead2a | 1601 | else |
de9ba98b | 1602 | value |= w->off_val << w->shift; |
b22ead2a | 1603 | |
ce0fc93a | 1604 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1605 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1606 | w->name, reg, value, mask); | |
81628103 | 1607 | |
68f89ad8 | 1608 | /* Check for events */ |
95dd5cd6 LPC |
1609 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); |
1610 | dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1611 | } |
1612 | ||
1613 | if (reg >= 0) { | |
29376bc7 MB |
1614 | /* Any widget will do, they should all be updating the |
1615 | * same register. | |
1616 | */ | |
29376bc7 | 1617 | |
ce0fc93a | 1618 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1619 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1620 | value, mask, reg, card->pop_time); |
1621 | pop_wait(card->pop_time); | |
ce0fc93a | 1622 | soc_dapm_update_bits(dapm, reg, mask, value); |
b22ead2a MB |
1623 | } |
1624 | ||
81628103 | 1625 | list_for_each_entry(w, pending, power_list) { |
95dd5cd6 LPC |
1626 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); |
1627 | dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1628 | } |
b22ead2a | 1629 | } |
42aa3418 | 1630 | |
b22ead2a MB |
1631 | /* Apply a DAPM power sequence. |
1632 | * | |
1633 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1634 | * order to minimise the number of writes to the device required | |
1635 | * multiple widgets will be updated in a single write where possible. | |
1636 | * Currently anything that requires more than a single write is not | |
1637 | * handled. | |
1638 | */ | |
95dd5cd6 LPC |
1639 | static void dapm_seq_run(struct snd_soc_card *card, |
1640 | struct list_head *list, int event, bool power_up) | |
b22ead2a MB |
1641 | { |
1642 | struct snd_soc_dapm_widget *w, *n; | |
eb270e98 | 1643 | struct snd_soc_dapm_context *d; |
b22ead2a MB |
1644 | LIST_HEAD(pending); |
1645 | int cur_sort = -1; | |
20e4859d | 1646 | int cur_subseq = -1; |
b22ead2a | 1647 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1648 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1649 | int ret, i; |
828a842f MB |
1650 | int *sort; |
1651 | ||
1652 | if (power_up) | |
1653 | sort = dapm_up_seq; | |
1654 | else | |
1655 | sort = dapm_down_seq; | |
163cac06 | 1656 | |
b22ead2a MB |
1657 | list_for_each_entry_safe(w, n, list, power_list) { |
1658 | ret = 0; | |
1659 | ||
1660 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1661 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1662 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1663 | if (!list_empty(&pending)) |
95dd5cd6 | 1664 | dapm_seq_run_coalesced(card, &pending); |
b22ead2a | 1665 | |
9d415fbf | 1666 | if (cur_dapm && cur_dapm->component) { |
474b62d6 MB |
1667 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) |
1668 | if (sort[i] == cur_sort) | |
9d415fbf KM |
1669 | snd_soc_component_seq_notifier( |
1670 | cur_dapm->component, | |
1671 | i, cur_subseq); | |
474b62d6 MB |
1672 | } |
1673 | ||
eb270e98 MB |
1674 | if (cur_dapm && w->dapm != cur_dapm) |
1675 | soc_dapm_async_complete(cur_dapm); | |
1676 | ||
b22ead2a MB |
1677 | INIT_LIST_HEAD(&pending); |
1678 | cur_sort = -1; | |
b0b3e6f8 | 1679 | cur_subseq = INT_MIN; |
b22ead2a | 1680 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1681 | cur_dapm = NULL; |
b22ead2a MB |
1682 | } |
1683 | ||
163cac06 MB |
1684 | switch (w->id) { |
1685 | case snd_soc_dapm_pre: | |
1686 | if (!w->event) | |
b22ead2a MB |
1687 | list_for_each_entry_safe_continue(w, n, list, |
1688 | power_list); | |
163cac06 | 1689 | |
b22ead2a | 1690 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1691 | ret = w->event(w, |
1692 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1693 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1694 | ret = w->event(w, |
1695 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1696 | break; |
1697 | ||
1698 | case snd_soc_dapm_post: | |
1699 | if (!w->event) | |
b22ead2a MB |
1700 | list_for_each_entry_safe_continue(w, n, list, |
1701 | power_list); | |
163cac06 | 1702 | |
b22ead2a | 1703 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1704 | ret = w->event(w, |
1705 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1706 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1707 | ret = w->event(w, |
1708 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1709 | break; |
1710 | ||
b22ead2a | 1711 | default: |
81628103 MB |
1712 | /* Queue it up for application */ |
1713 | cur_sort = sort[w->id]; | |
20e4859d | 1714 | cur_subseq = w->subseq; |
81628103 | 1715 | cur_reg = w->reg; |
7be31be8 | 1716 | cur_dapm = w->dapm; |
81628103 MB |
1717 | list_move(&w->power_list, &pending); |
1718 | break; | |
163cac06 | 1719 | } |
b22ead2a MB |
1720 | |
1721 | if (ret < 0) | |
f7d41ae8 | 1722 | dev_err(w->dapm->dev, |
30a6a1a4 | 1723 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1724 | } |
b22ead2a MB |
1725 | |
1726 | if (!list_empty(&pending)) | |
95dd5cd6 | 1727 | dapm_seq_run_coalesced(card, &pending); |
474b62d6 | 1728 | |
9d415fbf | 1729 | if (cur_dapm && cur_dapm->component) { |
474b62d6 MB |
1730 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) |
1731 | if (sort[i] == cur_sort) | |
9d415fbf KM |
1732 | snd_soc_component_seq_notifier( |
1733 | cur_dapm->component, | |
1734 | i, cur_subseq); | |
474b62d6 | 1735 | } |
eb270e98 | 1736 | |
df817f8e | 1737 | for_each_card_dapms(card, d) |
eb270e98 | 1738 | soc_dapm_async_complete(d); |
42aa3418 MB |
1739 | } |
1740 | ||
95dd5cd6 | 1741 | static void dapm_widget_update(struct snd_soc_card *card) |
97404f2e | 1742 | { |
95dd5cd6 | 1743 | struct snd_soc_dapm_update *update = card->update; |
ce6cfaf1 LPC |
1744 | struct snd_soc_dapm_widget_list *wlist; |
1745 | struct snd_soc_dapm_widget *w = NULL; | |
1746 | unsigned int wi; | |
97404f2e MB |
1747 | int ret; |
1748 | ||
57295073 | 1749 | if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) |
97404f2e MB |
1750 | return; |
1751 | ||
e84357f7 | 1752 | wlist = dapm_kcontrol_get_wlist(update->kcontrol); |
97404f2e | 1753 | |
09e88f8a | 1754 | for_each_dapm_widgets(wlist, wi, w) { |
ce6cfaf1 LPC |
1755 | if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { |
1756 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1757 | if (ret != 0) | |
95dd5cd6 | 1758 | dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
ce6cfaf1 LPC |
1759 | w->name, ret); |
1760 | } | |
97404f2e MB |
1761 | } |
1762 | ||
ce6cfaf1 LPC |
1763 | if (!w) |
1764 | return; | |
1765 | ||
ce0fc93a LPC |
1766 | ret = soc_dapm_update_bits(w->dapm, update->reg, update->mask, |
1767 | update->val); | |
97404f2e | 1768 | if (ret < 0) |
95dd5cd6 | 1769 | dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
30a6a1a4 | 1770 | w->name, ret); |
97404f2e | 1771 | |
e411b0b5 CYT |
1772 | if (update->has_second_set) { |
1773 | ret = soc_dapm_update_bits(w->dapm, update->reg2, | |
1774 | update->mask2, update->val2); | |
1775 | if (ret < 0) | |
1776 | dev_err(w->dapm->dev, | |
1777 | "ASoC: %s DAPM update failed: %d\n", | |
1778 | w->name, ret); | |
1779 | } | |
1780 | ||
09e88f8a | 1781 | for_each_dapm_widgets(wlist, wi, w) { |
ce6cfaf1 LPC |
1782 | if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { |
1783 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1784 | if (ret != 0) | |
95dd5cd6 | 1785 | dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
ce6cfaf1 LPC |
1786 | w->name, ret); |
1787 | } | |
97404f2e MB |
1788 | } |
1789 | } | |
1790 | ||
9d0624a7 MB |
1791 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1792 | * they're changing state. | |
1793 | */ | |
1794 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1795 | { | |
1796 | struct snd_soc_dapm_context *d = data; | |
1797 | int ret; | |
1798 | ||
c8046000 | 1799 | /* If we're off and we're not supposed to go into STANDBY */ |
56fba41f MB |
1800 | if (d->bias_level == SND_SOC_BIAS_OFF && |
1801 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1802 | if (d->dev) |
1803 | pm_runtime_get_sync(d->dev); | |
1804 | ||
9d0624a7 MB |
1805 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1806 | if (ret != 0) | |
1807 | dev_err(d->dev, | |
30a6a1a4 | 1808 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1809 | } |
1810 | ||
ce85a4d7 LPC |
1811 | /* Prepare for a transition to ON or away from ON */ |
1812 | if ((d->target_bias_level == SND_SOC_BIAS_ON && | |
1813 | d->bias_level != SND_SOC_BIAS_ON) || | |
1814 | (d->target_bias_level != SND_SOC_BIAS_ON && | |
1815 | d->bias_level == SND_SOC_BIAS_ON)) { | |
9d0624a7 MB |
1816 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1817 | if (ret != 0) | |
1818 | dev_err(d->dev, | |
30a6a1a4 | 1819 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1820 | } |
1821 | } | |
1822 | ||
1823 | /* Async callback run prior to DAPM sequences - brings to their final | |
1824 | * state. | |
1825 | */ | |
1826 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1827 | { | |
1828 | struct snd_soc_dapm_context *d = data; | |
1829 | int ret; | |
1830 | ||
1831 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1832 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1833 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1834 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1835 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1836 | if (ret != 0) | |
30a6a1a4 | 1837 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1838 | ret); |
1839 | } | |
97404f2e | 1840 | |
9d0624a7 | 1841 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1842 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1843 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1844 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1845 | if (ret != 0) | |
30a6a1a4 LG |
1846 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1847 | ret); | |
f1aac484 MB |
1848 | |
1849 | if (d->dev) | |
fb644e9c | 1850 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1851 | } |
1852 | ||
1853 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1854 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1855 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1856 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1857 | if (ret != 0) | |
30a6a1a4 | 1858 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1859 | ret); |
1860 | } | |
1861 | } | |
97404f2e | 1862 | |
fe4fda5d MB |
1863 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1864 | bool power, bool connect) | |
1865 | { | |
1866 | /* If a connection is being made or broken then that update | |
1867 | * will have marked the peer dirty, otherwise the widgets are | |
1868 | * not connected and this update has no impact. */ | |
1869 | if (!connect) | |
1870 | return; | |
1871 | ||
1872 | /* If the peer is already in the state we're moving to then we | |
1873 | * won't have an impact on it. */ | |
1874 | if (power != peer->power) | |
75c1f891 | 1875 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1876 | } |
1877 | ||
05623c43 MB |
1878 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1879 | struct list_head *up_list, | |
1880 | struct list_head *down_list) | |
1881 | { | |
db432b41 MB |
1882 | struct snd_soc_dapm_path *path; |
1883 | ||
05623c43 MB |
1884 | if (w->power == power) |
1885 | return; | |
1886 | ||
1887 | trace_snd_soc_dapm_widget_power(w, power); | |
1888 | ||
db432b41 | 1889 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1890 | * also. |
db432b41 | 1891 | */ |
e63bfd45 | 1892 | snd_soc_dapm_widget_for_each_source_path(w, path) |
7ddd4cd5 LPC |
1893 | dapm_widget_set_peer_power(path->source, power, path->connect); |
1894 | ||
6dd98b0a LPC |
1895 | /* Supplies can't affect their outputs, only their inputs */ |
1896 | if (!w->is_supply) { | |
e63bfd45 | 1897 | snd_soc_dapm_widget_for_each_sink_path(w, path) |
7ddd4cd5 LPC |
1898 | dapm_widget_set_peer_power(path->sink, power, |
1899 | path->connect); | |
db432b41 MB |
1900 | } |
1901 | ||
05623c43 MB |
1902 | if (power) |
1903 | dapm_seq_insert(w, up_list, true); | |
1904 | else | |
1905 | dapm_seq_insert(w, down_list, false); | |
05623c43 MB |
1906 | } |
1907 | ||
7c81beb0 MB |
1908 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1909 | struct list_head *up_list, | |
1910 | struct list_head *down_list) | |
1911 | { | |
7c81beb0 MB |
1912 | int power; |
1913 | ||
1914 | switch (w->id) { | |
1915 | case snd_soc_dapm_pre: | |
1916 | dapm_seq_insert(w, down_list, false); | |
1917 | break; | |
1918 | case snd_soc_dapm_post: | |
1919 | dapm_seq_insert(w, up_list, true); | |
1920 | break; | |
1921 | ||
1922 | default: | |
d805002b | 1923 | power = dapm_widget_power_check(w); |
7c81beb0 | 1924 | |
05623c43 | 1925 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1926 | break; |
1927 | } | |
1928 | } | |
1929 | ||
86dbf2ac LPC |
1930 | static bool dapm_idle_bias_off(struct snd_soc_dapm_context *dapm) |
1931 | { | |
1932 | if (dapm->idle_bias_off) | |
1933 | return true; | |
1934 | ||
1935 | switch (snd_power_get_state(dapm->card->snd_card)) { | |
1936 | case SNDRV_CTL_POWER_D3hot: | |
1937 | case SNDRV_CTL_POWER_D3cold: | |
1938 | return dapm->suspend_bias_off; | |
1939 | default: | |
1940 | break; | |
1941 | } | |
1942 | ||
1943 | return false; | |
1944 | } | |
1945 | ||
2b97eabc RP |
1946 | /* |
1947 | * Scan each dapm widget for complete audio path. | |
1948 | * A complete path is a route that has valid endpoints i.e.:- | |
1949 | * | |
1950 | * o DAC to output pin. | |
c8046000 | 1951 | * o Input pin to ADC. |
2b97eabc RP |
1952 | * o Input pin to Output pin (bypass, sidetone) |
1953 | * o DAC to ADC (loopback). | |
1954 | */ | |
95dd5cd6 | 1955 | static int dapm_power_widgets(struct snd_soc_card *card, int event) |
2b97eabc RP |
1956 | { |
1957 | struct snd_soc_dapm_widget *w; | |
7be31be8 | 1958 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1959 | LIST_HEAD(up_list); |
1960 | LIST_HEAD(down_list); | |
2955b47d | 1961 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1962 | enum snd_soc_bias_level bias; |
8e2a990d | 1963 | int ret; |
6d3ddc81 | 1964 | |
f9fa2b18 MB |
1965 | lockdep_assert_held(&card->dapm_mutex); |
1966 | ||
84e90930 MB |
1967 | trace_snd_soc_dapm_start(card); |
1968 | ||
df817f8e | 1969 | for_each_card_dapms(card, d) { |
86dbf2ac | 1970 | if (dapm_idle_bias_off(d)) |
497098be MB |
1971 | d->target_bias_level = SND_SOC_BIAS_OFF; |
1972 | else | |
1973 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1974 | } |
7be31be8 | 1975 | |
6c120e19 | 1976 | dapm_reset(card); |
9b8a83b2 | 1977 | |
6d3ddc81 | 1978 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1979 | * lists indicating if they should be powered up or down. We |
1980 | * only check widgets that have been flagged as dirty but note | |
1981 | * that new widgets may be added to the dirty list while we | |
1982 | * iterate. | |
6d3ddc81 | 1983 | */ |
db432b41 | 1984 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1985 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1986 | } |
1987 | ||
14596692 | 1988 | for_each_card_widgets(card, w) { |
0ff97ebf MB |
1989 | switch (w->id) { |
1990 | case snd_soc_dapm_pre: | |
1991 | case snd_soc_dapm_post: | |
1992 | /* These widgets always need to be powered */ | |
1993 | break; | |
1994 | default: | |
1995 | list_del_init(&w->dirty); | |
1996 | break; | |
1997 | } | |
db432b41 | 1998 | |
39eb5fd1 | 1999 | if (w->new_power) { |
f9de6d74 MB |
2000 | d = w->dapm; |
2001 | ||
2002 | /* Supplies and micbiases only bring the | |
2003 | * context up to STANDBY as unless something | |
2004 | * else is active and passing audio they | |
afe62367 MB |
2005 | * generally don't require full power. Signal |
2006 | * generators are virtual pins and have no | |
2007 | * power impact themselves. | |
f9de6d74 MB |
2008 | */ |
2009 | switch (w->id) { | |
afe62367 | 2010 | case snd_soc_dapm_siggen: |
da83fea6 | 2011 | case snd_soc_dapm_vmid: |
afe62367 | 2012 | break; |
f9de6d74 | 2013 | case snd_soc_dapm_supply: |
62ea874a | 2014 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 2015 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 2016 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
2017 | case snd_soc_dapm_micbias: |
2018 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
2019 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
2020 | break; | |
2021 | default: | |
2022 | d->target_bias_level = SND_SOC_BIAS_ON; | |
2023 | break; | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | } | |
2028 | ||
85a843c5 MB |
2029 | /* Force all contexts in the card to the same bias state if |
2030 | * they're not ground referenced. | |
2031 | */ | |
56fba41f | 2032 | bias = SND_SOC_BIAS_OFF; |
df817f8e | 2033 | for_each_card_dapms(card, d) |
56fba41f MB |
2034 | if (d->target_bias_level > bias) |
2035 | bias = d->target_bias_level; | |
df817f8e | 2036 | for_each_card_dapms(card, d) |
86dbf2ac | 2037 | if (!dapm_idle_bias_off(d)) |
85a843c5 | 2038 | d->target_bias_level = bias; |
52ba67bf | 2039 | |
de02d078 | 2040 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 2041 | |
17282ba4 XX |
2042 | /* Run card bias changes at first */ |
2043 | dapm_pre_sequence_async(&card->dapm, 0); | |
2044 | /* Run other bias changes in parallel */ | |
df817f8e | 2045 | for_each_card_dapms(card, d) { |
e03546dd | 2046 | if (d != &card->dapm && d->bias_level != d->target_bias_level) |
17282ba4 XX |
2047 | async_schedule_domain(dapm_pre_sequence_async, d, |
2048 | &async_domain); | |
2049 | } | |
9d0624a7 | 2050 | async_synchronize_full_domain(&async_domain); |
452c5eaa | 2051 | |
cf1f7c6e | 2052 | list_for_each_entry(w, &down_list, power_list) { |
95dd5cd6 | 2053 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); |
80114129 MB |
2054 | } |
2055 | ||
cf1f7c6e | 2056 | list_for_each_entry(w, &up_list, power_list) { |
95dd5cd6 | 2057 | dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); |
80114129 MB |
2058 | } |
2059 | ||
6d3ddc81 | 2060 | /* Power down widgets first; try to avoid amplifying pops. */ |
95dd5cd6 | 2061 | dapm_seq_run(card, &down_list, event, false); |
2b97eabc | 2062 | |
95dd5cd6 | 2063 | dapm_widget_update(card); |
97404f2e | 2064 | |
6d3ddc81 | 2065 | /* Now power up. */ |
95dd5cd6 | 2066 | dapm_seq_run(card, &up_list, event, true); |
2b97eabc | 2067 | |
9d0624a7 | 2068 | /* Run all the bias changes in parallel */ |
df817f8e | 2069 | for_each_card_dapms(card, d) { |
e03546dd | 2070 | if (d != &card->dapm && d->bias_level != d->target_bias_level) |
17282ba4 XX |
2071 | async_schedule_domain(dapm_post_sequence_async, d, |
2072 | &async_domain); | |
2073 | } | |
9d0624a7 | 2074 | async_synchronize_full_domain(&async_domain); |
17282ba4 XX |
2075 | /* Run card bias changes at last */ |
2076 | dapm_post_sequence_async(&card->dapm, 0); | |
452c5eaa | 2077 | |
8078d87f | 2078 | /* do we need to notify any clients that DAPM event is complete */ |
df817f8e | 2079 | for_each_card_dapms(card, d) { |
8e2a990d KM |
2080 | if (!d->component) |
2081 | continue; | |
2082 | ||
2083 | ret = snd_soc_component_stream_event(d->component, event); | |
2084 | if (ret < 0) | |
2085 | return ret; | |
8078d87f LG |
2086 | } |
2087 | ||
95dd5cd6 | 2088 | pop_dbg(card->dev, card->pop_time, |
fd8d3bc0 | 2089 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
3a45b867 | 2090 | pop_wait(card->pop_time); |
cb507e7e | 2091 | |
84e90930 MB |
2092 | trace_snd_soc_dapm_done(card); |
2093 | ||
42aa3418 | 2094 | return 0; |
2b97eabc RP |
2095 | } |
2096 | ||
79fb9387 | 2097 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
2098 | static ssize_t dapm_widget_power_read_file(struct file *file, |
2099 | char __user *user_buf, | |
2100 | size_t count, loff_t *ppos) | |
2101 | { | |
2102 | struct snd_soc_dapm_widget *w = file->private_data; | |
e50b1e06 | 2103 | struct snd_soc_card *card = w->dapm->card; |
a3423b02 | 2104 | enum snd_soc_dapm_direction dir, rdir; |
79fb9387 MB |
2105 | char *buf; |
2106 | int in, out; | |
2107 | ssize_t ret; | |
2108 | struct snd_soc_dapm_path *p = NULL; | |
2109 | ||
2110 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2111 | if (!buf) | |
2112 | return -ENOMEM; | |
2113 | ||
e50b1e06 LPC |
2114 | mutex_lock(&card->dapm_mutex); |
2115 | ||
c1862c8b LPC |
2116 | /* Supply widgets are not handled by is_connected_{input,output}_ep() */ |
2117 | if (w->is_supply) { | |
2118 | in = 0; | |
2119 | out = 0; | |
2120 | } else { | |
6742064a PS |
2121 | in = is_connected_input_ep(w, NULL, NULL); |
2122 | out = is_connected_output_ep(w, NULL, NULL); | |
c1862c8b | 2123 | } |
79fb9387 | 2124 | |
e581e151 | 2125 | ret = scnprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
f13ebada MB |
2126 | w->name, w->power ? "On" : "Off", |
2127 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 2128 | |
d033c36a | 2129 | if (w->reg >= 0) |
e581e151 | 2130 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, |
de9ba98b LPC |
2131 | " - R%d(0x%x) mask 0x%x", |
2132 | w->reg, w->reg, w->mask << w->shift); | |
d033c36a | 2133 | |
e581e151 | 2134 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n"); |
d033c36a | 2135 | |
3eef08ba | 2136 | if (w->sname) |
e581e151 | 2137 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", |
3eef08ba MB |
2138 | w->sname, |
2139 | w->active ? "active" : "inactive"); | |
79fb9387 | 2140 | |
a3423b02 LPC |
2141 | snd_soc_dapm_for_each_direction(dir) { |
2142 | rdir = SND_SOC_DAPM_DIR_REVERSE(dir); | |
2143 | snd_soc_dapm_widget_for_each_path(w, dir, p) { | |
28735af3 | 2144 | if (p->connected && !p->connected(p->source, p->sink)) |
a3423b02 | 2145 | continue; |
215edda3 | 2146 | |
a3423b02 LPC |
2147 | if (!p->connect) |
2148 | continue; | |
215edda3 | 2149 | |
e581e151 | 2150 | ret += scnprintf(buf + ret, PAGE_SIZE - ret, |
a3423b02 LPC |
2151 | " %s \"%s\" \"%s\"\n", |
2152 | (rdir == SND_SOC_DAPM_DIR_IN) ? "in" : "out", | |
79fb9387 | 2153 | p->name ? p->name : "static", |
a3423b02 LPC |
2154 | p->node[rdir]->name); |
2155 | } | |
79fb9387 MB |
2156 | } |
2157 | ||
e50b1e06 LPC |
2158 | mutex_unlock(&card->dapm_mutex); |
2159 | ||
79fb9387 MB |
2160 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
2161 | ||
2162 | kfree(buf); | |
2163 | return ret; | |
2164 | } | |
2165 | ||
2166 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 2167 | .open = simple_open, |
79fb9387 | 2168 | .read = dapm_widget_power_read_file, |
6038f373 | 2169 | .llseek = default_llseek, |
79fb9387 MB |
2170 | }; |
2171 | ||
ef49e4fa MB |
2172 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
2173 | size_t count, loff_t *ppos) | |
2174 | { | |
2175 | struct snd_soc_dapm_context *dapm = file->private_data; | |
2176 | char *level; | |
2177 | ||
2178 | switch (dapm->bias_level) { | |
2179 | case SND_SOC_BIAS_ON: | |
2180 | level = "On\n"; | |
2181 | break; | |
2182 | case SND_SOC_BIAS_PREPARE: | |
2183 | level = "Prepare\n"; | |
2184 | break; | |
2185 | case SND_SOC_BIAS_STANDBY: | |
2186 | level = "Standby\n"; | |
2187 | break; | |
2188 | case SND_SOC_BIAS_OFF: | |
2189 | level = "Off\n"; | |
2190 | break; | |
2191 | default: | |
a6ed0608 | 2192 | WARN(1, "Unknown bias_level %d\n", dapm->bias_level); |
ef49e4fa MB |
2193 | level = "Unknown\n"; |
2194 | break; | |
2195 | } | |
2196 | ||
2197 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
2198 | strlen(level)); | |
2199 | } | |
2200 | ||
2201 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 2202 | .open = simple_open, |
ef49e4fa MB |
2203 | .read = dapm_bias_read_file, |
2204 | .llseek = default_llseek, | |
2205 | }; | |
2206 | ||
8eecaf62 LPC |
2207 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2208 | struct dentry *parent) | |
79fb9387 | 2209 | { |
ceaea851 | 2210 | if (!parent || IS_ERR(parent)) |
6553bf06 LPC |
2211 | return; |
2212 | ||
8eecaf62 LPC |
2213 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
2214 | ||
fee531d6 GKH |
2215 | debugfs_create_file("bias_level", 0444, dapm->debugfs_dapm, dapm, |
2216 | &dapm_bias_fops); | |
d5d1e0be | 2217 | } |
ef49e4fa | 2218 | |
d5d1e0be LPC |
2219 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
2220 | { | |
2221 | struct snd_soc_dapm_context *dapm = w->dapm; | |
79fb9387 | 2222 | |
d5d1e0be LPC |
2223 | if (!dapm->debugfs_dapm || !w->name) |
2224 | return; | |
2225 | ||
fee531d6 GKH |
2226 | debugfs_create_file(w->name, 0444, dapm->debugfs_dapm, w, |
2227 | &dapm_widget_power_fops); | |
79fb9387 | 2228 | } |
d5d1e0be | 2229 | |
6c45e126 LPC |
2230 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2231 | { | |
2232 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
29040d1a | 2233 | dapm->debugfs_dapm = NULL; |
6c45e126 LPC |
2234 | } |
2235 | ||
79fb9387 | 2236 | #else |
8eecaf62 LPC |
2237 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
2238 | struct dentry *parent) | |
79fb9387 MB |
2239 | { |
2240 | } | |
d5d1e0be LPC |
2241 | |
2242 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
2243 | { | |
2244 | } | |
2245 | ||
6c45e126 LPC |
2246 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
2247 | { | |
2248 | } | |
2249 | ||
79fb9387 MB |
2250 | #endif |
2251 | ||
4a201948 LPC |
2252 | /* |
2253 | * soc_dapm_connect_path() - Connects or disconnects a path | |
2254 | * @path: The path to update | |
2255 | * @connect: The new connect state of the path. True if the path is connected, | |
c8046000 | 2256 | * false if it is disconnected. |
4a201948 LPC |
2257 | * @reason: The reason why the path changed (for debugging only) |
2258 | */ | |
2259 | static void soc_dapm_connect_path(struct snd_soc_dapm_path *path, | |
2260 | bool connect, const char *reason) | |
2261 | { | |
2262 | if (path->connect == connect) | |
2263 | return; | |
2264 | ||
2265 | path->connect = connect; | |
2266 | dapm_mark_dirty(path->source, reason); | |
2267 | dapm_mark_dirty(path->sink, reason); | |
92a99ea4 | 2268 | dapm_path_invalidate(path); |
4a201948 LPC |
2269 | } |
2270 | ||
2b97eabc | 2271 | /* test and update the power status of a mux widget */ |
95dd5cd6 | 2272 | static int soc_dapm_mux_update_power(struct snd_soc_card *card, |
40f02cd9 | 2273 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
2274 | { |
2275 | struct snd_soc_dapm_path *path; | |
2276 | int found = 0; | |
4a201948 | 2277 | bool connect; |
2b97eabc | 2278 | |
f9fa2b18 MB |
2279 | lockdep_assert_held(&card->dapm_mutex); |
2280 | ||
2b97eabc | 2281 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2282 | dapm_kcontrol_for_each_path(path, kcontrol) { |
2b97eabc RP |
2283 | found = 1; |
2284 | /* we now need to match the string in the enum to the path */ | |
c3456a4b | 2285 | if (e && !(strcmp(path->name, e->texts[mux]))) |
4a201948 LPC |
2286 | connect = true; |
2287 | else | |
2288 | connect = false; | |
2289 | ||
2290 | soc_dapm_connect_path(path, connect, "mux update"); | |
2b97eabc RP |
2291 | } |
2292 | ||
ce6cfaf1 | 2293 | if (found) |
95dd5cd6 | 2294 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2295 | |
618dae11 | 2296 | return found; |
2b97eabc | 2297 | } |
4edbb345 | 2298 | |
ce6cfaf1 | 2299 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2300 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, |
2301 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2302 | { |
ce6cfaf1 | 2303 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2304 | int ret; |
2305 | ||
3cd04343 | 2306 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2307 | card->update = update; |
95dd5cd6 | 2308 | ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); |
564c6504 | 2309 | card->update = NULL; |
4edbb345 | 2310 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2311 | if (ret > 0) |
f17a1478 | 2312 | snd_soc_dpcm_runtime_update(card); |
4edbb345 LG |
2313 | return ret; |
2314 | } | |
40f02cd9 | 2315 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 2316 | |
1b075e3f | 2317 | /* test and update the power status of a mixer or switch widget */ |
95dd5cd6 | 2318 | static int soc_dapm_mixer_update_power(struct snd_soc_card *card, |
e7aa450f CYT |
2319 | struct snd_kcontrol *kcontrol, |
2320 | int connect, int rconnect) | |
2b97eabc RP |
2321 | { |
2322 | struct snd_soc_dapm_path *path; | |
2323 | int found = 0; | |
2324 | ||
f9fa2b18 MB |
2325 | lockdep_assert_held(&card->dapm_mutex); |
2326 | ||
2b97eabc | 2327 | /* find dapm widget path assoc with kcontrol */ |
5106b92f | 2328 | dapm_kcontrol_for_each_path(path, kcontrol) { |
e7aa450f CYT |
2329 | /* |
2330 | * Ideally this function should support any number of | |
2331 | * paths and channels. But since kcontrols only come | |
2332 | * in mono and stereo variants, we are limited to 2 | |
2333 | * channels. | |
2334 | * | |
2335 | * The following code assumes for stereo controls the | |
2336 | * first path (when 'found == 0') is the left channel, | |
2337 | * and all remaining paths (when 'found == 1') are the | |
2338 | * right channel. | |
2339 | * | |
2340 | * A stereo control is signified by a valid 'rconnect' | |
2341 | * value, either 0 for unconnected, or >= 0 for connected. | |
2342 | * This is chosen instead of using snd_soc_volsw_is_stereo, | |
2343 | * so that the behavior of snd_soc_dapm_mixer_update_power | |
2344 | * doesn't change even when the kcontrol passed in is | |
2345 | * stereo. | |
2346 | * | |
2347 | * It passes 'connect' as the path connect status for | |
2348 | * the left channel, and 'rconnect' for the right | |
2349 | * channel. | |
2350 | */ | |
2351 | if (found && rconnect >= 0) | |
2352 | soc_dapm_connect_path(path, rconnect, "mixer update"); | |
2353 | else | |
2354 | soc_dapm_connect_path(path, connect, "mixer update"); | |
2b97eabc | 2355 | found = 1; |
2b97eabc RP |
2356 | } |
2357 | ||
ce6cfaf1 | 2358 | if (found) |
95dd5cd6 | 2359 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 2360 | |
618dae11 | 2361 | return found; |
2b97eabc | 2362 | } |
4edbb345 | 2363 | |
ce6cfaf1 | 2364 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, |
6b3fc03b LPC |
2365 | struct snd_kcontrol *kcontrol, int connect, |
2366 | struct snd_soc_dapm_update *update) | |
4edbb345 | 2367 | { |
ce6cfaf1 | 2368 | struct snd_soc_card *card = dapm->card; |
4edbb345 LG |
2369 | int ret; |
2370 | ||
3cd04343 | 2371 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
564c6504 | 2372 | card->update = update; |
e7aa450f | 2373 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, -1); |
564c6504 | 2374 | card->update = NULL; |
4edbb345 | 2375 | mutex_unlock(&card->dapm_mutex); |
618dae11 | 2376 | if (ret > 0) |
f17a1478 | 2377 | snd_soc_dpcm_runtime_update(card); |
4edbb345 LG |
2378 | return ret; |
2379 | } | |
40f02cd9 | 2380 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc | 2381 | |
b3c25fb7 LPC |
2382 | static ssize_t dapm_widget_show_component(struct snd_soc_component *cmpnt, |
2383 | char *buf) | |
2b97eabc | 2384 | { |
b3c25fb7 | 2385 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt); |
2b97eabc RP |
2386 | struct snd_soc_dapm_widget *w; |
2387 | int count = 0; | |
2388 | char *state = "not set"; | |
2389 | ||
47325078 MB |
2390 | /* card won't be set for the dummy component, as a spot fix |
2391 | * we're checking for that case specifically here but in future | |
2392 | * we will ensure that the dummy component looks like others. | |
2393 | */ | |
2394 | if (!cmpnt->card) | |
2395 | return 0; | |
2396 | ||
14596692 | 2397 | for_each_card_widgets(cmpnt->card, w) { |
b3c25fb7 | 2398 | if (w->dapm != dapm) |
97c866de | 2399 | continue; |
2b97eabc | 2400 | |
c8046000 | 2401 | /* only display widgets that burn power */ |
2b97eabc RP |
2402 | switch (w->id) { |
2403 | case snd_soc_dapm_hp: | |
2404 | case snd_soc_dapm_mic: | |
2405 | case snd_soc_dapm_spk: | |
2406 | case snd_soc_dapm_line: | |
2407 | case snd_soc_dapm_micbias: | |
2408 | case snd_soc_dapm_dac: | |
2409 | case snd_soc_dapm_adc: | |
2410 | case snd_soc_dapm_pga: | |
882c8b4a | 2411 | case snd_soc_dapm_effect: |
d88429a6 | 2412 | case snd_soc_dapm_out_drv: |
2b97eabc | 2413 | case snd_soc_dapm_mixer: |
ca9c1aae | 2414 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2415 | case snd_soc_dapm_supply: |
62ea874a | 2416 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 2417 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 2418 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2419 | if (w->name) |
2420 | count += sprintf(buf + count, "%s: %s\n", | |
2421 | w->name, w->power ? "On":"Off"); | |
2422 | break; | |
2423 | default: | |
2424 | break; | |
2425 | } | |
2426 | } | |
2427 | ||
b3c25fb7 | 2428 | switch (snd_soc_dapm_get_bias_level(dapm)) { |
0be9898a MB |
2429 | case SND_SOC_BIAS_ON: |
2430 | state = "On"; | |
2b97eabc | 2431 | break; |
0be9898a MB |
2432 | case SND_SOC_BIAS_PREPARE: |
2433 | state = "Prepare"; | |
2b97eabc | 2434 | break; |
0be9898a MB |
2435 | case SND_SOC_BIAS_STANDBY: |
2436 | state = "Standby"; | |
2b97eabc | 2437 | break; |
0be9898a MB |
2438 | case SND_SOC_BIAS_OFF: |
2439 | state = "Off"; | |
2b97eabc RP |
2440 | break; |
2441 | } | |
2442 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2443 | ||
2444 | return count; | |
2445 | } | |
2446 | ||
44ba2641 BC |
2447 | /* show dapm widget status in sys fs */ |
2448 | static ssize_t dapm_widget_show(struct device *dev, | |
2449 | struct device_attribute *attr, char *buf) | |
2450 | { | |
2451 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); | |
0b7990e3 | 2452 | struct snd_soc_dai *codec_dai; |
44ba2641 BC |
2453 | int i, count = 0; |
2454 | ||
e50b1e06 LPC |
2455 | mutex_lock(&rtd->card->dapm_mutex); |
2456 | ||
a4be4187 | 2457 | for_each_rtd_codec_dais(rtd, i, codec_dai) { |
0b7990e3 | 2458 | struct snd_soc_component *cmpnt = codec_dai->component; |
b3c25fb7 LPC |
2459 | |
2460 | count += dapm_widget_show_component(cmpnt, buf + count); | |
44ba2641 BC |
2461 | } |
2462 | ||
e50b1e06 LPC |
2463 | mutex_unlock(&rtd->card->dapm_mutex); |
2464 | ||
44ba2641 BC |
2465 | return count; |
2466 | } | |
2467 | ||
c828a892 | 2468 | static DEVICE_ATTR_RO(dapm_widget); |
2b97eabc | 2469 | |
d29697dc TI |
2470 | struct attribute *soc_dapm_dev_attrs[] = { |
2471 | &dev_attr_dapm_widget.attr, | |
2472 | NULL | |
2473 | }; | |
2b97eabc | 2474 | |
8872293f LPC |
2475 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2476 | { | |
a3423b02 LPC |
2477 | list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]); |
2478 | list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]); | |
5106b92f | 2479 | list_del(&path->list_kcontrol); |
8872293f | 2480 | list_del(&path->list); |
8872293f LPC |
2481 | kfree(path); |
2482 | } | |
2483 | ||
b97e2698 LPC |
2484 | void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) |
2485 | { | |
2486 | struct snd_soc_dapm_path *p, *next_p; | |
a3423b02 | 2487 | enum snd_soc_dapm_direction dir; |
b97e2698 LPC |
2488 | |
2489 | list_del(&w->list); | |
2490 | /* | |
2491 | * remove source and sink paths associated to this widget. | |
2492 | * While removing the path, remove reference to it from both | |
2493 | * source and sink widgets so that path is removed only once. | |
2494 | */ | |
a3423b02 LPC |
2495 | snd_soc_dapm_for_each_direction(dir) { |
2496 | snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p) | |
2497 | dapm_free_path(p); | |
2498 | } | |
b97e2698 LPC |
2499 | |
2500 | kfree(w->kcontrols); | |
48068961 | 2501 | kfree_const(w->name); |
199ed3e8 | 2502 | kfree_const(w->sname); |
b97e2698 LPC |
2503 | kfree(w); |
2504 | } | |
2505 | ||
fd589a1b JS |
2506 | void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm) |
2507 | { | |
2508 | dapm->path_sink_cache.widget = NULL; | |
2509 | dapm->path_source_cache.widget = NULL; | |
2510 | } | |
2511 | ||
2b97eabc | 2512 | /* free all dapm widgets and resources */ |
ce6120cc | 2513 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2514 | { |
2515 | struct snd_soc_dapm_widget *w, *next_w; | |
2b97eabc | 2516 | |
14596692 | 2517 | for_each_card_widgets_safe(dapm->card, w, next_w) { |
97c866de JN |
2518 | if (w->dapm != dapm) |
2519 | continue; | |
b97e2698 | 2520 | snd_soc_dapm_free_widget(w); |
2b97eabc | 2521 | } |
fd589a1b | 2522 | snd_soc_dapm_reset_cache(dapm); |
2b97eabc RP |
2523 | } |
2524 | ||
91a5fca4 LPC |
2525 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2526 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2527 | bool search_other_contexts) | |
a5302181 LG |
2528 | { |
2529 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2530 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2531 | |
14596692 | 2532 | for_each_card_widgets(dapm->card, w) { |
a5302181 | 2533 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2534 | if (w->dapm == dapm) |
2535 | return w; | |
2536 | else | |
2537 | fallback = w; | |
a5302181 LG |
2538 | } |
2539 | } | |
2540 | ||
91a5fca4 LPC |
2541 | if (search_other_contexts) |
2542 | return fallback; | |
2543 | ||
2544 | return NULL; | |
2545 | } | |
2546 | ||
2547 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2548 | const char *pin, int status) | |
2549 | { | |
2550 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2551 | ||
f9fa2b18 MB |
2552 | dapm_assert_locked(dapm); |
2553 | ||
91a5fca4 | 2554 | if (!w) { |
30a6a1a4 | 2555 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2556 | return -EINVAL; |
0d86733c MB |
2557 | } |
2558 | ||
92a99ea4 | 2559 | if (w->connected != status) { |
1a8b2d9d | 2560 | dapm_mark_dirty(w, "pin configuration"); |
92a99ea4 LPC |
2561 | dapm_widget_invalidate_input_paths(w); |
2562 | dapm_widget_invalidate_output_paths(w); | |
2563 | } | |
1a8b2d9d | 2564 | |
91a5fca4 LPC |
2565 | w->connected = status; |
2566 | if (status == 0) | |
2567 | w->force = 0; | |
2568 | ||
2569 | return 0; | |
a5302181 LG |
2570 | } |
2571 | ||
2b97eabc | 2572 | /** |
3eb29dfb | 2573 | * snd_soc_dapm_sync_unlocked - scan and power dapm paths |
ce6120cc | 2574 | * @dapm: DAPM context |
2b97eabc RP |
2575 | * |
2576 | * Walks all dapm audio paths and powers widgets according to their | |
2577 | * stream or path usage. | |
2578 | * | |
3eb29dfb CK |
2579 | * Requires external locking. |
2580 | * | |
2b97eabc RP |
2581 | * Returns 0 for success. |
2582 | */ | |
3eb29dfb | 2583 | int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2584 | { |
4f4c0072 MB |
2585 | /* |
2586 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2587 | * silly DAPM runs during card startup. | |
2588 | */ | |
2589 | if (!dapm->card || !dapm->card->instantiated) | |
2590 | return 0; | |
2591 | ||
3eb29dfb CK |
2592 | return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); |
2593 | } | |
2594 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); | |
2595 | ||
2596 | /** | |
2597 | * snd_soc_dapm_sync - scan and power dapm paths | |
2598 | * @dapm: DAPM context | |
2599 | * | |
2600 | * Walks all dapm audio paths and powers widgets according to their | |
2601 | * stream or path usage. | |
2602 | * | |
2603 | * Returns 0 for success. | |
2604 | */ | |
2605 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) | |
2606 | { | |
2607 | int ret; | |
2608 | ||
3cd04343 | 2609 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3eb29dfb | 2610 | ret = snd_soc_dapm_sync_unlocked(dapm); |
a73fb2df LG |
2611 | mutex_unlock(&dapm->card->dapm_mutex); |
2612 | return ret; | |
2b97eabc | 2613 | } |
a5302181 | 2614 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2615 | |
078a85f2 CK |
2616 | static int dapm_update_dai_chan(struct snd_soc_dapm_path *p, |
2617 | struct snd_soc_dapm_widget *w, | |
2618 | int channels) | |
2619 | { | |
2620 | switch (w->id) { | |
2621 | case snd_soc_dapm_aif_out: | |
2622 | case snd_soc_dapm_aif_in: | |
2623 | break; | |
2624 | default: | |
2625 | return 0; | |
2626 | } | |
2627 | ||
2628 | dev_dbg(w->dapm->dev, "%s DAI route %s -> %s\n", | |
2629 | w->channel < channels ? "Connecting" : "Disconnecting", | |
2630 | p->source->name, p->sink->name); | |
2631 | ||
2632 | if (w->channel < channels) | |
2633 | soc_dapm_connect_path(p, true, "dai update"); | |
2634 | else | |
2635 | soc_dapm_connect_path(p, false, "dai update"); | |
2636 | ||
2637 | return 0; | |
2638 | } | |
2639 | ||
2640 | static int dapm_update_dai_unlocked(struct snd_pcm_substream *substream, | |
2641 | struct snd_pcm_hw_params *params, | |
2642 | struct snd_soc_dai *dai) | |
2643 | { | |
2644 | int dir = substream->stream; | |
2645 | int channels = params_channels(params); | |
2646 | struct snd_soc_dapm_path *p; | |
2647 | struct snd_soc_dapm_widget *w; | |
2648 | int ret; | |
2649 | ||
0c01f6ca | 2650 | w = snd_soc_dai_get_widget(dai, dir); |
078a85f2 | 2651 | |
cf17a5ff CK |
2652 | if (!w) |
2653 | return 0; | |
2654 | ||
078a85f2 CK |
2655 | dev_dbg(dai->dev, "Update DAI routes for %s %s\n", dai->name, |
2656 | dir == SNDRV_PCM_STREAM_PLAYBACK ? "playback" : "capture"); | |
2657 | ||
2658 | snd_soc_dapm_widget_for_each_sink_path(w, p) { | |
2659 | ret = dapm_update_dai_chan(p, p->sink, channels); | |
2660 | if (ret < 0) | |
2661 | return ret; | |
2662 | } | |
2663 | ||
2664 | snd_soc_dapm_widget_for_each_source_path(w, p) { | |
2665 | ret = dapm_update_dai_chan(p, p->source, channels); | |
2666 | if (ret < 0) | |
2667 | return ret; | |
2668 | } | |
2669 | ||
2670 | return 0; | |
2671 | } | |
2672 | ||
2673 | int snd_soc_dapm_update_dai(struct snd_pcm_substream *substream, | |
2674 | struct snd_pcm_hw_params *params, | |
2675 | struct snd_soc_dai *dai) | |
2676 | { | |
2677 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2678 | int ret; | |
2679 | ||
2680 | mutex_lock_nested(&rtd->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
2681 | ret = dapm_update_dai_unlocked(substream, params, dai); | |
2682 | mutex_unlock(&rtd->card->dapm_mutex); | |
2683 | ||
2684 | return ret; | |
2685 | } | |
2686 | EXPORT_SYMBOL_GPL(snd_soc_dapm_update_dai); | |
2687 | ||
6dd98b0a LPC |
2688 | /* |
2689 | * dapm_update_widget_flags() - Re-compute widget sink and source flags | |
2690 | * @w: The widget for which to update the flags | |
2691 | * | |
2692 | * Some widgets have a dynamic category which depends on which neighbors they | |
2693 | * are connected to. This function update the category for these widgets. | |
2694 | * | |
2695 | * This function must be called whenever a path is added or removed to a widget. | |
2696 | */ | |
2697 | static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w) | |
2698 | { | |
a3423b02 | 2699 | enum snd_soc_dapm_direction dir; |
6dd98b0a | 2700 | struct snd_soc_dapm_path *p; |
a3423b02 | 2701 | unsigned int ep; |
6dd98b0a LPC |
2702 | |
2703 | switch (w->id) { | |
2704 | case snd_soc_dapm_input: | |
c8046000 | 2705 | /* On a fully routed card an input is never a source */ |
86d75003 | 2706 | if (w->dapm->card->fully_routed) |
a3423b02 LPC |
2707 | return; |
2708 | ep = SND_SOC_DAPM_EP_SOURCE; | |
e63bfd45 | 2709 | snd_soc_dapm_widget_for_each_source_path(w, p) { |
6dd98b0a LPC |
2710 | if (p->source->id == snd_soc_dapm_micbias || |
2711 | p->source->id == snd_soc_dapm_mic || | |
2712 | p->source->id == snd_soc_dapm_line || | |
2713 | p->source->id == snd_soc_dapm_output) { | |
a3423b02 | 2714 | ep = 0; |
6dd98b0a LPC |
2715 | break; |
2716 | } | |
2717 | } | |
2718 | break; | |
2719 | case snd_soc_dapm_output: | |
86d75003 LPC |
2720 | /* On a fully routed card a output is never a sink */ |
2721 | if (w->dapm->card->fully_routed) | |
a3423b02 LPC |
2722 | return; |
2723 | ep = SND_SOC_DAPM_EP_SINK; | |
e63bfd45 | 2724 | snd_soc_dapm_widget_for_each_sink_path(w, p) { |
6dd98b0a LPC |
2725 | if (p->sink->id == snd_soc_dapm_spk || |
2726 | p->sink->id == snd_soc_dapm_hp || | |
2727 | p->sink->id == snd_soc_dapm_line || | |
2728 | p->sink->id == snd_soc_dapm_input) { | |
a3423b02 | 2729 | ep = 0; |
6dd98b0a LPC |
2730 | break; |
2731 | } | |
2732 | } | |
2733 | break; | |
2734 | case snd_soc_dapm_line: | |
a3423b02 LPC |
2735 | ep = 0; |
2736 | snd_soc_dapm_for_each_direction(dir) { | |
2737 | if (!list_empty(&w->edges[dir])) | |
2738 | ep |= SND_SOC_DAPM_DIR_TO_EP(dir); | |
2739 | } | |
6dd98b0a LPC |
2740 | break; |
2741 | default: | |
a3423b02 | 2742 | return; |
6dd98b0a | 2743 | } |
a3423b02 LPC |
2744 | |
2745 | w->is_ep = ep; | |
6dd98b0a LPC |
2746 | } |
2747 | ||
d714f97c LPC |
2748 | static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm, |
2749 | struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink, | |
2750 | const char *control) | |
2751 | { | |
2752 | bool dynamic_source = false; | |
2753 | bool dynamic_sink = false; | |
2754 | ||
2755 | if (!control) | |
2756 | return 0; | |
2757 | ||
2758 | switch (source->id) { | |
2759 | case snd_soc_dapm_demux: | |
2760 | dynamic_source = true; | |
2761 | break; | |
2762 | default: | |
2763 | break; | |
2764 | } | |
2765 | ||
2766 | switch (sink->id) { | |
2767 | case snd_soc_dapm_mux: | |
2768 | case snd_soc_dapm_switch: | |
2769 | case snd_soc_dapm_mixer: | |
2770 | case snd_soc_dapm_mixer_named_ctl: | |
2771 | dynamic_sink = true; | |
2772 | break; | |
2773 | default: | |
2774 | break; | |
2775 | } | |
2776 | ||
2777 | if (dynamic_source && dynamic_sink) { | |
2778 | dev_err(dapm->dev, | |
2779 | "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n", | |
2780 | source->name, control, sink->name); | |
2781 | return -EINVAL; | |
2782 | } else if (!dynamic_source && !dynamic_sink) { | |
2783 | dev_err(dapm->dev, | |
2784 | "Control not supported for path %s -> [%s] -> %s\n", | |
2785 | source->name, control, sink->name); | |
2786 | return -EINVAL; | |
2787 | } | |
2788 | ||
2789 | return 0; | |
2790 | } | |
2791 | ||
2553628e LPC |
2792 | static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, |
2793 | struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, | |
2794 | const char *control, | |
2795 | int (*connected)(struct snd_soc_dapm_widget *source, | |
2796 | struct snd_soc_dapm_widget *sink)) | |
2b97eabc | 2797 | { |
a3423b02 LPC |
2798 | struct snd_soc_dapm_widget *widgets[2]; |
2799 | enum snd_soc_dapm_direction dir; | |
2b97eabc | 2800 | struct snd_soc_dapm_path *path; |
2553628e | 2801 | int ret; |
2b97eabc | 2802 | |
e409dfbf LPC |
2803 | if (wsink->is_supply && !wsource->is_supply) { |
2804 | dev_err(dapm->dev, | |
2805 | "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n", | |
2806 | wsource->name, wsink->name); | |
2807 | return -EINVAL; | |
2808 | } | |
2809 | ||
2810 | if (connected && !wsource->is_supply) { | |
2811 | dev_err(dapm->dev, | |
2812 | "connected() callback only supported for supply widgets (%s -> %s)\n", | |
2813 | wsource->name, wsink->name); | |
2814 | return -EINVAL; | |
2815 | } | |
2816 | ||
2817 | if (wsource->is_supply && control) { | |
2818 | dev_err(dapm->dev, | |
2819 | "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n", | |
2820 | wsource->name, control, wsink->name); | |
2821 | return -EINVAL; | |
2822 | } | |
2823 | ||
d714f97c LPC |
2824 | ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control); |
2825 | if (ret) | |
2826 | return ret; | |
2827 | ||
2b97eabc RP |
2828 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
2829 | if (!path) | |
2830 | return -ENOMEM; | |
2831 | ||
a3423b02 LPC |
2832 | path->node[SND_SOC_DAPM_DIR_IN] = wsource; |
2833 | path->node[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2834 | widgets[SND_SOC_DAPM_DIR_IN] = wsource; | |
2835 | widgets[SND_SOC_DAPM_DIR_OUT] = wsink; | |
2836 | ||
2553628e | 2837 | path->connected = connected; |
2b97eabc | 2838 | INIT_LIST_HEAD(&path->list); |
69c2d346 | 2839 | INIT_LIST_HEAD(&path->list_kcontrol); |
2b97eabc | 2840 | |
c1862c8b LPC |
2841 | if (wsource->is_supply || wsink->is_supply) |
2842 | path->is_supply = 1; | |
2843 | ||
2b97eabc RP |
2844 | /* connect static paths */ |
2845 | if (control == NULL) { | |
2b97eabc | 2846 | path->connect = 1; |
5fe5b767 | 2847 | } else { |
d714f97c LPC |
2848 | switch (wsource->id) { |
2849 | case snd_soc_dapm_demux: | |
2850 | ret = dapm_connect_mux(dapm, path, control, wsource); | |
2851 | if (ret) | |
2852 | goto err; | |
2853 | break; | |
2854 | default: | |
2855 | break; | |
2856 | } | |
2857 | ||
5fe5b767 LPC |
2858 | switch (wsink->id) { |
2859 | case snd_soc_dapm_mux: | |
d714f97c | 2860 | ret = dapm_connect_mux(dapm, path, control, wsink); |
5fe5b767 LPC |
2861 | if (ret != 0) |
2862 | goto err; | |
2863 | break; | |
2864 | case snd_soc_dapm_switch: | |
2865 | case snd_soc_dapm_mixer: | |
2866 | case snd_soc_dapm_mixer_named_ctl: | |
2867 | ret = dapm_connect_mixer(dapm, path, control); | |
2868 | if (ret != 0) | |
2869 | goto err; | |
2870 | break; | |
2871 | default: | |
d714f97c | 2872 | break; |
5fe5b767 | 2873 | } |
2b97eabc | 2874 | } |
fabd0384 | 2875 | |
5fe5b767 | 2876 | list_add(&path->list, &dapm->card->paths); |
a3423b02 LPC |
2877 | snd_soc_dapm_for_each_direction(dir) |
2878 | list_add(&path->list_node[dir], &widgets[dir]->edges[dir]); | |
5fe5b767 | 2879 | |
a3423b02 LPC |
2880 | snd_soc_dapm_for_each_direction(dir) { |
2881 | dapm_update_widget_flags(widgets[dir]); | |
2882 | dapm_mark_dirty(widgets[dir], "Route added"); | |
2883 | } | |
5fe5b767 | 2884 | |
92a99ea4 LPC |
2885 | if (dapm->card->instantiated && path->connect) |
2886 | dapm_path_invalidate(path); | |
2887 | ||
2b97eabc | 2888 | return 0; |
2553628e LPC |
2889 | err: |
2890 | kfree(path); | |
2891 | return ret; | |
2892 | } | |
2b97eabc | 2893 | |
2553628e | 2894 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
a4e9154c | 2895 | const struct snd_soc_dapm_route *route) |
2553628e LPC |
2896 | { |
2897 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
2898 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; | |
2899 | const char *sink; | |
2900 | const char *source; | |
2901 | char prefixed_sink[80]; | |
2902 | char prefixed_source[80]; | |
94f99c87 | 2903 | const char *prefix; |
411db2ab ZJ |
2904 | unsigned int sink_ref = 0; |
2905 | unsigned int source_ref = 0; | |
2553628e LPC |
2906 | int ret; |
2907 | ||
94f99c87 LPC |
2908 | prefix = soc_dapm_prefix(dapm); |
2909 | if (prefix) { | |
2553628e | 2910 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 2911 | prefix, route->sink); |
2553628e LPC |
2912 | sink = prefixed_sink; |
2913 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 2914 | prefix, route->source); |
2553628e LPC |
2915 | source = prefixed_source; |
2916 | } else { | |
2917 | sink = route->sink; | |
2918 | source = route->source; | |
2919 | } | |
2920 | ||
45a110a1 CK |
2921 | wsource = dapm_wcache_lookup(&dapm->path_source_cache, source); |
2922 | wsink = dapm_wcache_lookup(&dapm->path_sink_cache, sink); | |
2923 | ||
2924 | if (wsink && wsource) | |
2925 | goto skip_search; | |
2926 | ||
2553628e LPC |
2927 | /* |
2928 | * find src and dest widgets over all widgets but favor a widget from | |
2929 | * current DAPM context | |
2930 | */ | |
14596692 | 2931 | for_each_card_widgets(dapm->card, w) { |
2553628e LPC |
2932 | if (!wsink && !(strcmp(w->name, sink))) { |
2933 | wtsink = w; | |
70c75109 | 2934 | if (w->dapm == dapm) { |
2553628e | 2935 | wsink = w; |
70c75109 CK |
2936 | if (wsource) |
2937 | break; | |
2938 | } | |
411db2ab ZJ |
2939 | sink_ref++; |
2940 | if (sink_ref > 1) | |
2941 | dev_warn(dapm->dev, | |
2942 | "ASoC: sink widget %s overwritten\n", | |
2943 | w->name); | |
2553628e LPC |
2944 | continue; |
2945 | } | |
2946 | if (!wsource && !(strcmp(w->name, source))) { | |
2947 | wtsource = w; | |
70c75109 | 2948 | if (w->dapm == dapm) { |
2553628e | 2949 | wsource = w; |
70c75109 CK |
2950 | if (wsink) |
2951 | break; | |
2952 | } | |
411db2ab ZJ |
2953 | source_ref++; |
2954 | if (source_ref > 1) | |
2955 | dev_warn(dapm->dev, | |
2956 | "ASoC: source widget %s overwritten\n", | |
2957 | w->name); | |
2553628e LPC |
2958 | } |
2959 | } | |
2960 | /* use widget from another DAPM context if not found from this */ | |
2961 | if (!wsink) | |
2962 | wsink = wtsink; | |
2963 | if (!wsource) | |
2964 | wsource = wtsource; | |
2965 | ||
2966 | if (wsource == NULL) { | |
2967 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2968 | route->source); | |
2969 | return -ENODEV; | |
2970 | } | |
2971 | if (wsink == NULL) { | |
2972 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2973 | route->sink); | |
2974 | return -ENODEV; | |
2975 | } | |
2976 | ||
45a110a1 CK |
2977 | skip_search: |
2978 | dapm_wcache_update(&dapm->path_sink_cache, wsink); | |
2979 | dapm_wcache_update(&dapm->path_source_cache, wsource); | |
2980 | ||
2553628e LPC |
2981 | ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, |
2982 | route->connected); | |
2983 | if (ret) | |
2984 | goto err; | |
2985 | ||
2986 | return 0; | |
2b97eabc | 2987 | err: |
30a6a1a4 | 2988 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
2553628e | 2989 | source, route->control, sink); |
2b97eabc RP |
2990 | return ret; |
2991 | } | |
105f1c28 | 2992 | |
efcc3c61 MB |
2993 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2994 | const struct snd_soc_dapm_route *route) | |
2995 | { | |
6dd98b0a | 2996 | struct snd_soc_dapm_widget *wsource, *wsink; |
efcc3c61 MB |
2997 | struct snd_soc_dapm_path *path, *p; |
2998 | const char *sink; | |
2999 | const char *source; | |
3000 | char prefixed_sink[80]; | |
3001 | char prefixed_source[80]; | |
94f99c87 | 3002 | const char *prefix; |
efcc3c61 MB |
3003 | |
3004 | if (route->control) { | |
3005 | dev_err(dapm->dev, | |
30a6a1a4 | 3006 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
3007 | return -EINVAL; |
3008 | } | |
3009 | ||
94f99c87 LPC |
3010 | prefix = soc_dapm_prefix(dapm); |
3011 | if (prefix) { | |
efcc3c61 | 3012 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
94f99c87 | 3013 | prefix, route->sink); |
efcc3c61 MB |
3014 | sink = prefixed_sink; |
3015 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
94f99c87 | 3016 | prefix, route->source); |
efcc3c61 MB |
3017 | source = prefixed_source; |
3018 | } else { | |
3019 | sink = route->sink; | |
3020 | source = route->source; | |
3021 | } | |
3022 | ||
3023 | path = NULL; | |
3024 | list_for_each_entry(p, &dapm->card->paths, list) { | |
3025 | if (strcmp(p->source->name, source) != 0) | |
3026 | continue; | |
3027 | if (strcmp(p->sink->name, sink) != 0) | |
3028 | continue; | |
3029 | path = p; | |
3030 | break; | |
3031 | } | |
3032 | ||
3033 | if (path) { | |
6dd98b0a LPC |
3034 | wsource = path->source; |
3035 | wsink = path->sink; | |
3036 | ||
3037 | dapm_mark_dirty(wsource, "Route removed"); | |
3038 | dapm_mark_dirty(wsink, "Route removed"); | |
92a99ea4 LPC |
3039 | if (path->connect) |
3040 | dapm_path_invalidate(path); | |
efcc3c61 | 3041 | |
8872293f | 3042 | dapm_free_path(path); |
6dd98b0a LPC |
3043 | |
3044 | /* Update any path related flags */ | |
3045 | dapm_update_widget_flags(wsource); | |
3046 | dapm_update_widget_flags(wsink); | |
efcc3c61 | 3047 | } else { |
30a6a1a4 | 3048 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
3049 | source, sink); |
3050 | } | |
3051 | ||
3052 | return 0; | |
3053 | } | |
3054 | ||
105f1c28 MB |
3055 | /** |
3056 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 3057 | * @dapm: DAPM context |
105f1c28 MB |
3058 | * @route: audio routes |
3059 | * @num: number of routes | |
3060 | * | |
3061 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
3062 | * the widget receiving the audio signal, whilst the source is the sender | |
3063 | * of the audio signal. | |
3064 | * | |
3065 | * Returns 0 for success else error. On error all resources can be freed | |
3066 | * with a call to snd_soc_card_free(). | |
3067 | */ | |
ce6120cc | 3068 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
3069 | const struct snd_soc_dapm_route *route, int num) |
3070 | { | |
62d4a4b9 | 3071 | int i, r, ret = 0; |
105f1c28 | 3072 | |
f19c181f | 3073 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
105f1c28 | 3074 | for (i = 0; i < num; i++) { |
a4e9154c | 3075 | r = snd_soc_dapm_add_route(dapm, route); |
62d4a4b9 | 3076 | if (r < 0) { |
30a6a1a4 LG |
3077 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
3078 | route->source, | |
3079 | route->control ? route->control : "direct", | |
3080 | route->sink); | |
62d4a4b9 | 3081 | ret = r; |
105f1c28 MB |
3082 | } |
3083 | route++; | |
3084 | } | |
a73fb2df | 3085 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 3086 | |
60884c27 | 3087 | return ret; |
105f1c28 MB |
3088 | } |
3089 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
3090 | ||
efcc3c61 MB |
3091 | /** |
3092 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
3093 | * @dapm: DAPM context | |
3094 | * @route: audio routes | |
3095 | * @num: number of routes | |
3096 | * | |
3097 | * Removes routes from the DAPM context. | |
3098 | */ | |
3099 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
3100 | const struct snd_soc_dapm_route *route, int num) | |
3101 | { | |
e066ea22 | 3102 | int i; |
efcc3c61 | 3103 | |
f19c181f | 3104 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
efcc3c61 MB |
3105 | for (i = 0; i < num; i++) { |
3106 | snd_soc_dapm_del_route(dapm, route); | |
3107 | route++; | |
3108 | } | |
3109 | mutex_unlock(&dapm->card->dapm_mutex); | |
3110 | ||
e066ea22 | 3111 | return 0; |
efcc3c61 MB |
3112 | } |
3113 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
3114 | ||
bf3a9e13 MB |
3115 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
3116 | const struct snd_soc_dapm_route *route) | |
3117 | { | |
3118 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
3119 | route->source, | |
3120 | true); | |
3121 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
3122 | route->sink, | |
3123 | true); | |
3124 | struct snd_soc_dapm_path *path; | |
3125 | int count = 0; | |
3126 | ||
3127 | if (!source) { | |
30a6a1a4 | 3128 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
3129 | route->source); |
3130 | return -ENODEV; | |
3131 | } | |
3132 | ||
3133 | if (!sink) { | |
30a6a1a4 | 3134 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
3135 | route->sink); |
3136 | return -ENODEV; | |
3137 | } | |
3138 | ||
3139 | if (route->control || route->connected) | |
30a6a1a4 | 3140 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
3141 | route->source, route->sink); |
3142 | ||
e63bfd45 | 3143 | snd_soc_dapm_widget_for_each_sink_path(source, path) { |
bf3a9e13 MB |
3144 | if (path->sink == sink) { |
3145 | path->weak = 1; | |
3146 | count++; | |
3147 | } | |
3148 | } | |
3149 | ||
3150 | if (count == 0) | |
30a6a1a4 | 3151 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
3152 | route->source, route->sink); |
3153 | if (count > 1) | |
30a6a1a4 | 3154 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
3155 | count, route->source, route->sink); |
3156 | ||
3157 | return 0; | |
3158 | } | |
3159 | ||
3160 | /** | |
3161 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
3162 | * @dapm: DAPM context | |
3163 | * @route: audio routes | |
3164 | * @num: number of routes | |
3165 | * | |
3166 | * Mark existing routes matching those specified in the passed array | |
3167 | * as being weak, meaning that they are ignored for the purpose of | |
3168 | * power decisions. The main intended use case is for sidetone paths | |
3169 | * which couple audio between other independent paths if they are both | |
3170 | * active in order to make the combination work better at the user | |
3171 | * level but which aren't intended to be "used". | |
3172 | * | |
3173 | * Note that CODEC drivers should not use this as sidetone type paths | |
3174 | * can frequently also be used as bypass paths. | |
3175 | */ | |
3176 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
3177 | const struct snd_soc_dapm_route *route, int num) | |
3178 | { | |
3179 | int i, err; | |
3180 | int ret = 0; | |
3181 | ||
a73fb2df | 3182 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
3183 | for (i = 0; i < num; i++) { |
3184 | err = snd_soc_dapm_weak_route(dapm, route); | |
3185 | if (err) | |
3186 | ret = err; | |
3187 | route++; | |
3188 | } | |
a73fb2df | 3189 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
3190 | |
3191 | return ret; | |
3192 | } | |
3193 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
3194 | ||
2b97eabc RP |
3195 | /** |
3196 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
628536ea | 3197 | * @card: card to be checked for new dapm widgets |
2b97eabc RP |
3198 | * |
3199 | * Checks the codec for any new dapm widgets and creates them if found. | |
3200 | * | |
3201 | * Returns 0 for success. | |
3202 | */ | |
824ef826 | 3203 | int snd_soc_dapm_new_widgets(struct snd_soc_card *card) |
2b97eabc RP |
3204 | { |
3205 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 3206 | unsigned int val; |
2b97eabc | 3207 | |
95dd5cd6 | 3208 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
a73fb2df | 3209 | |
14596692 | 3210 | for_each_card_widgets(card, w) |
2b97eabc RP |
3211 | { |
3212 | if (w->new) | |
3213 | continue; | |
3214 | ||
fad59888 | 3215 | if (w->num_kcontrols) { |
6396bb22 | 3216 | w->kcontrols = kcalloc(w->num_kcontrols, |
fad59888 SW |
3217 | sizeof(struct snd_kcontrol *), |
3218 | GFP_KERNEL); | |
a73fb2df | 3219 | if (!w->kcontrols) { |
95dd5cd6 | 3220 | mutex_unlock(&card->dapm_mutex); |
fad59888 | 3221 | return -ENOMEM; |
a73fb2df | 3222 | } |
fad59888 SW |
3223 | } |
3224 | ||
2b97eabc RP |
3225 | switch(w->id) { |
3226 | case snd_soc_dapm_switch: | |
3227 | case snd_soc_dapm_mixer: | |
ca9c1aae | 3228 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 3229 | dapm_new_mixer(w); |
2b97eabc RP |
3230 | break; |
3231 | case snd_soc_dapm_mux: | |
d714f97c | 3232 | case snd_soc_dapm_demux: |
4b80b8c2 | 3233 | dapm_new_mux(w); |
2b97eabc | 3234 | break; |
2b97eabc | 3235 | case snd_soc_dapm_pga: |
882c8b4a | 3236 | case snd_soc_dapm_effect: |
d88429a6 | 3237 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 3238 | dapm_new_pga(w); |
2b97eabc | 3239 | break; |
c6615082 NO |
3240 | case snd_soc_dapm_dai_link: |
3241 | dapm_new_dai_link(w); | |
3242 | break; | |
7ca3a18b | 3243 | default: |
2b97eabc RP |
3244 | break; |
3245 | } | |
b66a70d5 MB |
3246 | |
3247 | /* Read the initial power state from the device */ | |
3248 | if (w->reg >= 0) { | |
ce0fc93a | 3249 | soc_dapm_read(w->dapm, w->reg, &val); |
f7d3c170 | 3250 | val = val >> w->shift; |
de9ba98b LPC |
3251 | val &= w->mask; |
3252 | if (val == w->on_val) | |
b66a70d5 MB |
3253 | w->power = 1; |
3254 | } | |
3255 | ||
2b97eabc | 3256 | w->new = 1; |
d5d1e0be | 3257 | |
7508b12a | 3258 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 3259 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
3260 | } |
3261 | ||
95dd5cd6 LPC |
3262 | dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); |
3263 | mutex_unlock(&card->dapm_mutex); | |
2b97eabc RP |
3264 | return 0; |
3265 | } | |
3266 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
3267 | ||
3268 | /** | |
3269 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
3270 | * @kcontrol: mixer control | |
ac11a2b3 | 3271 | * @ucontrol: control element information |
2b97eabc RP |
3272 | * |
3273 | * Callback to get the value of a dapm mixer control. | |
3274 | * | |
3275 | * Returns 0 for success. | |
3276 | */ | |
3277 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
3278 | struct snd_ctl_elem_value *ucontrol) | |
3279 | { | |
ce0fc93a LPC |
3280 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3281 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3282 | struct soc_mixer_control *mc = |
3283 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3284 | int reg = mc->reg; |
815ecf8d | 3285 | unsigned int shift = mc->shift; |
4eaa9819 | 3286 | int max = mc->max; |
e7aa450f | 3287 | unsigned int width = fls(max); |
815ecf8d | 3288 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 | 3289 | unsigned int invert = mc->invert; |
e7aa450f | 3290 | unsigned int reg_val, val, rval = 0; |
ce0fc93a | 3291 | int ret = 0; |
da602ab8 | 3292 | |
57295073 | 3293 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
ce0fc93a | 3294 | if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) { |
e7aa450f CYT |
3295 | ret = soc_dapm_read(dapm, reg, ®_val); |
3296 | val = (reg_val >> shift) & mask; | |
3297 | ||
3298 | if (ret == 0 && reg != mc->rreg) | |
3299 | ret = soc_dapm_read(dapm, mc->rreg, ®_val); | |
3300 | ||
3301 | if (snd_soc_volsw_is_stereo(mc)) | |
3302 | rval = (reg_val >> mc->rshift) & mask; | |
ce0fc93a | 3303 | } else { |
e7aa450f CYT |
3304 | reg_val = dapm_kcontrol_get_value(kcontrol); |
3305 | val = reg_val & mask; | |
3306 | ||
3307 | if (snd_soc_volsw_is_stereo(mc)) | |
3308 | rval = (reg_val >> width) & mask; | |
ce0fc93a | 3309 | } |
57295073 LPC |
3310 | mutex_unlock(&card->dapm_mutex); |
3311 | ||
01ad5e7d CYT |
3312 | if (ret) |
3313 | return ret; | |
3314 | ||
da602ab8 | 3315 | if (invert) |
57295073 LPC |
3316 | ucontrol->value.integer.value[0] = max - val; |
3317 | else | |
3318 | ucontrol->value.integer.value[0] = val; | |
2b97eabc | 3319 | |
e7aa450f CYT |
3320 | if (snd_soc_volsw_is_stereo(mc)) { |
3321 | if (invert) | |
3322 | ucontrol->value.integer.value[1] = max - rval; | |
3323 | else | |
3324 | ucontrol->value.integer.value[1] = rval; | |
3325 | } | |
3326 | ||
ce0fc93a | 3327 | return ret; |
2b97eabc RP |
3328 | } |
3329 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
3330 | ||
3331 | /** | |
3332 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
3333 | * @kcontrol: mixer control | |
ac11a2b3 | 3334 | * @ucontrol: control element information |
2b97eabc RP |
3335 | * |
3336 | * Callback to set the value of a dapm mixer control. | |
3337 | * | |
3338 | * Returns 0 for success. | |
3339 | */ | |
3340 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
3341 | struct snd_ctl_elem_value *ucontrol) | |
3342 | { | |
ce0fc93a LPC |
3343 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3344 | struct snd_soc_card *card = dapm->card; | |
4eaa9819 JS |
3345 | struct soc_mixer_control *mc = |
3346 | (struct soc_mixer_control *)kcontrol->private_value; | |
249ce138 | 3347 | int reg = mc->reg; |
815ecf8d | 3348 | unsigned int shift = mc->shift; |
4eaa9819 | 3349 | int max = mc->max; |
e7aa450f CYT |
3350 | unsigned int width = fls(max); |
3351 | unsigned int mask = (1 << width) - 1; | |
815ecf8d | 3352 | unsigned int invert = mc->invert; |
e7aa450f CYT |
3353 | unsigned int val, rval = 0; |
3354 | int connect, rconnect = -1, change, reg_change = 0; | |
33d9245c | 3355 | struct snd_soc_dapm_update update = {}; |
52765976 | 3356 | int ret = 0; |
2b97eabc RP |
3357 | |
3358 | val = (ucontrol->value.integer.value[0] & mask); | |
8a720718 | 3359 | connect = !!val; |
2b97eabc RP |
3360 | |
3361 | if (invert) | |
a7a4ac86 | 3362 | val = max - val; |
2b97eabc | 3363 | |
e7aa450f CYT |
3364 | if (snd_soc_volsw_is_stereo(mc)) { |
3365 | rval = (ucontrol->value.integer.value[1] & mask); | |
3366 | rconnect = !!rval; | |
3367 | if (invert) | |
3368 | rval = max - rval; | |
3369 | } | |
3370 | ||
3cd04343 | 3371 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 3372 | |
e7aa450f CYT |
3373 | /* This assumes field width < (bits in unsigned int / 2) */ |
3374 | if (width > sizeof(unsigned int) * 8 / 2) | |
3375 | dev_warn(dapm->dev, | |
3376 | "ASoC: control %s field width limit exceeded\n", | |
3377 | kcontrol->id.name); | |
3378 | change = dapm_kcontrol_set_value(kcontrol, val | (rval << width)); | |
97404f2e | 3379 | |
18626c7e | 3380 | if (reg != SND_SOC_NOPM) { |
18626c7e | 3381 | val = val << shift; |
e7aa450f CYT |
3382 | rval = rval << mc->rshift; |
3383 | ||
3384 | reg_change = soc_dapm_test_bits(dapm, reg, mask << shift, val); | |
18626c7e | 3385 | |
e7aa450f CYT |
3386 | if (snd_soc_volsw_is_stereo(mc)) |
3387 | reg_change |= soc_dapm_test_bits(dapm, mc->rreg, | |
3388 | mask << mc->rshift, | |
3389 | rval); | |
18626c7e JN |
3390 | } |
3391 | ||
3392 | if (change || reg_change) { | |
3393 | if (reg_change) { | |
e7aa450f CYT |
3394 | if (snd_soc_volsw_is_stereo(mc)) { |
3395 | update.has_second_set = true; | |
3396 | update.reg2 = mc->rreg; | |
3397 | update.mask2 = mask << mc->rshift; | |
3398 | update.val2 = rval; | |
3399 | } | |
18626c7e JN |
3400 | update.kcontrol = kcontrol; |
3401 | update.reg = reg; | |
e7aa450f | 3402 | update.mask = mask << shift; |
18626c7e JN |
3403 | update.val = val; |
3404 | card->update = &update; | |
249ce138 | 3405 | } |
18626c7e | 3406 | change |= reg_change; |
97404f2e | 3407 | |
e7aa450f CYT |
3408 | ret = soc_dapm_mixer_update_power(card, kcontrol, connect, |
3409 | rconnect); | |
fafd2176 | 3410 | |
564c6504 | 3411 | card->update = NULL; |
283375ce MB |
3412 | } |
3413 | ||
a73fb2df | 3414 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3415 | |
3416 | if (ret > 0) | |
f17a1478 | 3417 | snd_soc_dpcm_runtime_update(card); |
52765976 | 3418 | |
56a67834 | 3419 | return change; |
2b97eabc RP |
3420 | } |
3421 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
3422 | ||
3423 | /** | |
3424 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
3425 | * @kcontrol: mixer control | |
ac11a2b3 | 3426 | * @ucontrol: control element information |
2b97eabc RP |
3427 | * |
3428 | * Callback to get the value of a dapm enumerated double mixer control. | |
3429 | * | |
3430 | * Returns 0 for success. | |
3431 | */ | |
3432 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
3433 | struct snd_ctl_elem_value *ucontrol) | |
3434 | { | |
ce0fc93a | 3435 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
561ed680 | 3436 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 3437 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3438 | unsigned int reg_val, val; |
52765976 | 3439 | |
561ed680 CK |
3440 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
3441 | if (e->reg != SND_SOC_NOPM && dapm_kcontrol_is_powered(kcontrol)) { | |
69128316 | 3442 | int ret = soc_dapm_read(dapm, e->reg, ®_val); |
964a0b89 CK |
3443 | if (ret) { |
3444 | mutex_unlock(&card->dapm_mutex); | |
69128316 | 3445 | return ret; |
964a0b89 | 3446 | } |
69128316 | 3447 | } else { |
236aaa68 | 3448 | reg_val = dapm_kcontrol_get_value(kcontrol); |
69128316 | 3449 | } |
561ed680 | 3450 | mutex_unlock(&card->dapm_mutex); |
2e72f8e3 | 3451 | |
2e72f8e3 | 3452 | val = (reg_val >> e->shift_l) & e->mask; |
3727b496 | 3453 | ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); |
2e72f8e3 PU |
3454 | if (e->shift_l != e->shift_r) { |
3455 | val = (reg_val >> e->shift_r) & e->mask; | |
3727b496 LPC |
3456 | val = snd_soc_enum_val_to_item(e, val); |
3457 | ucontrol->value.enumerated.item[1] = val; | |
2e72f8e3 PU |
3458 | } |
3459 | ||
69128316 | 3460 | return 0; |
2e72f8e3 | 3461 | } |
2b97eabc | 3462 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
2e72f8e3 | 3463 | |
8f486296 TBS |
3464 | /** |
3465 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
3466 | * @kcontrol: mixer control | |
3467 | * @ucontrol: control element information | |
3468 | * | |
3469 | * Callback to set the value of a dapm enumerated double mixer control. | |
3470 | * | |
3471 | * Returns 0 for success. | |
3472 | */ | |
3473 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
3474 | struct snd_ctl_elem_value *ucontrol) | |
2e72f8e3 | 3475 | { |
ce0fc93a LPC |
3476 | struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
3477 | struct snd_soc_card *card = dapm->card; | |
74155556 | 3478 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3727b496 | 3479 | unsigned int *item = ucontrol->value.enumerated.item; |
561ed680 | 3480 | unsigned int val, change, reg_change = 0; |
46f5822f | 3481 | unsigned int mask; |
33d9245c | 3482 | struct snd_soc_dapm_update update = {}; |
52765976 | 3483 | int ret = 0; |
2e72f8e3 | 3484 | |
3727b496 | 3485 | if (item[0] >= e->items) |
2e72f8e3 | 3486 | return -EINVAL; |
3727b496 LPC |
3487 | |
3488 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
2e72f8e3 PU |
3489 | mask = e->mask << e->shift_l; |
3490 | if (e->shift_l != e->shift_r) { | |
3727b496 | 3491 | if (item[1] > e->items) |
2e72f8e3 | 3492 | return -EINVAL; |
071133a2 | 3493 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; |
2e72f8e3 PU |
3494 | mask |= e->mask << e->shift_r; |
3495 | } | |
3496 | ||
8f486296 | 3497 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 3498 | |
561ed680 CK |
3499 | change = dapm_kcontrol_set_value(kcontrol, val); |
3500 | ||
236aaa68 | 3501 | if (e->reg != SND_SOC_NOPM) |
561ed680 | 3502 | reg_change = soc_dapm_test_bits(dapm, e->reg, mask, val); |
236aaa68 | 3503 | |
561ed680 CK |
3504 | if (change || reg_change) { |
3505 | if (reg_change) { | |
236aaa68 LPC |
3506 | update.kcontrol = kcontrol; |
3507 | update.reg = e->reg; | |
3508 | update.mask = mask; | |
3509 | update.val = val; | |
3510 | card->update = &update; | |
3511 | } | |
561ed680 | 3512 | change |= reg_change; |
1642e3d4 | 3513 | |
3727b496 | 3514 | ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); |
fafd2176 | 3515 | |
564c6504 | 3516 | card->update = NULL; |
fafd2176 | 3517 | } |
2e72f8e3 | 3518 | |
8f486296 | 3519 | mutex_unlock(&card->dapm_mutex); |
52765976 NC |
3520 | |
3521 | if (ret > 0) | |
f17a1478 | 3522 | snd_soc_dpcm_runtime_update(card); |
52765976 | 3523 | |
97404f2e | 3524 | return change; |
2e72f8e3 | 3525 | } |
2b97eabc | 3526 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
2e72f8e3 | 3527 | |
8b37dbd2 MB |
3528 | /** |
3529 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
3530 | * | |
3531 | * @kcontrol: mixer control | |
3532 | * @uinfo: control element information | |
3533 | * | |
3534 | * Callback to provide information about a pin switch control. | |
3535 | */ | |
3536 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3537 | struct snd_ctl_elem_info *uinfo) | |
3538 | { | |
3539 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3540 | uinfo->count = 1; | |
3541 | uinfo->value.integer.min = 0; | |
3542 | uinfo->value.integer.max = 1; | |
3543 | ||
3544 | return 0; | |
3545 | } | |
3546 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3547 | ||
3548 | /** | |
3549 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3550 | * | |
3551 | * @kcontrol: mixer control | |
3552 | * @ucontrol: Value | |
3553 | */ | |
3554 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3555 | struct snd_ctl_elem_value *ucontrol) | |
3556 | { | |
48a8c394 | 3557 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3558 | const char *pin = (const char *)kcontrol->private_value; |
3559 | ||
3cd04343 | 3560 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3561 | |
3562 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3563 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3564 | |
a73fb2df | 3565 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3566 | |
3567 | return 0; | |
3568 | } | |
3569 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3570 | ||
3571 | /** | |
3572 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3573 | * | |
3574 | * @kcontrol: mixer control | |
3575 | * @ucontrol: Value | |
3576 | */ | |
3577 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3578 | struct snd_ctl_elem_value *ucontrol) | |
3579 | { | |
48a8c394 | 3580 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3581 | const char *pin = (const char *)kcontrol->private_value; |
3582 | ||
8b37dbd2 | 3583 | if (ucontrol->value.integer.value[0]) |
48a8c394 | 3584 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3585 | else |
48a8c394 | 3586 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3587 | |
a73fb2df | 3588 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3589 | return 0; |
3590 | } | |
3591 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3592 | ||
02aa78ab LG |
3593 | struct snd_soc_dapm_widget * |
3594 | snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, | |
5ba06fc9 | 3595 | const struct snd_soc_dapm_widget *widget) |
2b97eabc | 3596 | { |
a3423b02 | 3597 | enum snd_soc_dapm_direction dir; |
2b97eabc | 3598 | struct snd_soc_dapm_widget *w; |
94f99c87 | 3599 | const char *prefix; |
62ea874a | 3600 | int ret; |
2b97eabc RP |
3601 | |
3602 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
3bbf5d34 | 3603 | return ERR_PTR(-ENOMEM); |
2b97eabc | 3604 | |
62ea874a MB |
3605 | switch (w->id) { |
3606 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3607 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3608 | if (IS_ERR(w->regulator)) { | |
3609 | ret = PTR_ERR(w->regulator); | |
3bbf5d34 | 3610 | goto request_failed; |
62ea874a | 3611 | } |
8784c77a | 3612 | |
de9ba98b | 3613 | if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { |
8784c77a MB |
3614 | ret = regulator_allow_bypass(w->regulator, true); |
3615 | if (ret != 0) | |
3bbf5d34 | 3616 | dev_warn(dapm->dev, |
30686c35 | 3617 | "ASoC: Failed to bypass %s: %d\n", |
8784c77a MB |
3618 | w->name, ret); |
3619 | } | |
62ea874a | 3620 | break; |
5b2d15bb SK |
3621 | case snd_soc_dapm_pinctrl: |
3622 | w->pinctrl = devm_pinctrl_get(dapm->dev); | |
a5cd7e9c | 3623 | if (IS_ERR(w->pinctrl)) { |
5b2d15bb | 3624 | ret = PTR_ERR(w->pinctrl); |
3bbf5d34 | 3625 | goto request_failed; |
5b2d15bb | 3626 | } |
ec06dc15 TBS |
3627 | |
3628 | /* set to sleep_state when initializing */ | |
3629 | dapm_pinctrl_event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
5b2d15bb | 3630 | break; |
d7e7eb91 | 3631 | case snd_soc_dapm_clock_supply: |
695594f1 | 3632 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3633 | if (IS_ERR(w->clk)) { |
3634 | ret = PTR_ERR(w->clk); | |
3bbf5d34 | 3635 | goto request_failed; |
d7e7eb91 OL |
3636 | } |
3637 | break; | |
62ea874a MB |
3638 | default: |
3639 | break; | |
3640 | } | |
2b97eabc | 3641 | |
94f99c87 | 3642 | prefix = soc_dapm_prefix(dapm); |
a798c24a | 3643 | if (prefix) |
94f99c87 | 3644 | w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name); |
a798c24a | 3645 | else |
48068961 | 3646 | w->name = kstrdup_const(widget->name, GFP_KERNEL); |
ead9b919 | 3647 | if (w->name == NULL) { |
199ed3e8 | 3648 | kfree_const(w->sname); |
ead9b919 | 3649 | kfree(w); |
3bbf5d34 | 3650 | return ERR_PTR(-ENOMEM); |
ead9b919 | 3651 | } |
ead9b919 | 3652 | |
7ca3a18b | 3653 | switch (w->id) { |
6dd98b0a | 3654 | case snd_soc_dapm_mic: |
a3423b02 | 3655 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
7ca3a18b MB |
3656 | w->power_check = dapm_generic_check_power; |
3657 | break; | |
86d75003 LPC |
3658 | case snd_soc_dapm_input: |
3659 | if (!dapm->card->fully_routed) | |
a3423b02 | 3660 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
86d75003 LPC |
3661 | w->power_check = dapm_generic_check_power; |
3662 | break; | |
6dd98b0a LPC |
3663 | case snd_soc_dapm_spk: |
3664 | case snd_soc_dapm_hp: | |
a3423b02 | 3665 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
7ca3a18b MB |
3666 | w->power_check = dapm_generic_check_power; |
3667 | break; | |
86d75003 LPC |
3668 | case snd_soc_dapm_output: |
3669 | if (!dapm->card->fully_routed) | |
a3423b02 | 3670 | w->is_ep = SND_SOC_DAPM_EP_SINK; |
86d75003 LPC |
3671 | w->power_check = dapm_generic_check_power; |
3672 | break; | |
6dd98b0a LPC |
3673 | case snd_soc_dapm_vmid: |
3674 | case snd_soc_dapm_siggen: | |
a3423b02 | 3675 | w->is_ep = SND_SOC_DAPM_EP_SOURCE; |
6dd98b0a LPC |
3676 | w->power_check = dapm_always_on_check_power; |
3677 | break; | |
56b4437f VK |
3678 | case snd_soc_dapm_sink: |
3679 | w->is_ep = SND_SOC_DAPM_EP_SINK; | |
3680 | w->power_check = dapm_always_on_check_power; | |
3681 | break; | |
3682 | ||
6dd98b0a | 3683 | case snd_soc_dapm_mux: |
d714f97c | 3684 | case snd_soc_dapm_demux: |
6dd98b0a LPC |
3685 | case snd_soc_dapm_switch: |
3686 | case snd_soc_dapm_mixer: | |
3687 | case snd_soc_dapm_mixer_named_ctl: | |
63c69a6e MB |
3688 | case snd_soc_dapm_adc: |
3689 | case snd_soc_dapm_aif_out: | |
3690 | case snd_soc_dapm_dac: | |
3691 | case snd_soc_dapm_aif_in: | |
7ca3a18b | 3692 | case snd_soc_dapm_pga: |
6e3bfcff RS |
3693 | case snd_soc_dapm_buffer: |
3694 | case snd_soc_dapm_scheduler: | |
3695 | case snd_soc_dapm_effect: | |
3696 | case snd_soc_dapm_src: | |
3697 | case snd_soc_dapm_asrc: | |
3698 | case snd_soc_dapm_encoder: | |
3699 | case snd_soc_dapm_decoder: | |
7ca3a18b | 3700 | case snd_soc_dapm_out_drv: |
7ca3a18b | 3701 | case snd_soc_dapm_micbias: |
7ca3a18b | 3702 | case snd_soc_dapm_line: |
c74184ed | 3703 | case snd_soc_dapm_dai_link: |
cdef2ad3 LPC |
3704 | case snd_soc_dapm_dai_out: |
3705 | case snd_soc_dapm_dai_in: | |
7ca3a18b MB |
3706 | w->power_check = dapm_generic_check_power; |
3707 | break; | |
3708 | case snd_soc_dapm_supply: | |
62ea874a | 3709 | case snd_soc_dapm_regulator_supply: |
5b2d15bb | 3710 | case snd_soc_dapm_pinctrl: |
d7e7eb91 | 3711 | case snd_soc_dapm_clock_supply: |
57295073 | 3712 | case snd_soc_dapm_kcontrol: |
6dd98b0a | 3713 | w->is_supply = 1; |
7ca3a18b MB |
3714 | w->power_check = dapm_supply_check_power; |
3715 | break; | |
3716 | default: | |
3717 | w->power_check = dapm_always_on_check_power; | |
3718 | break; | |
3719 | } | |
3720 | ||
ce6120cc | 3721 | w->dapm = dapm; |
2b97eabc | 3722 | INIT_LIST_HEAD(&w->list); |
db432b41 | 3723 | INIT_LIST_HEAD(&w->dirty); |
14596692 | 3724 | /* see for_each_card_widgets */ |
92fa1242 | 3725 | list_add_tail(&w->list, &dapm->card->widgets); |
2b97eabc | 3726 | |
a3423b02 LPC |
3727 | snd_soc_dapm_for_each_direction(dir) { |
3728 | INIT_LIST_HEAD(&w->edges[dir]); | |
3729 | w->endpoints[dir] = -1; | |
3730 | } | |
92a99ea4 | 3731 | |
c8046000 | 3732 | /* machine layer sets up unconnected pins and insertions */ |
2b97eabc | 3733 | w->connected = 1; |
5ba06fc9 | 3734 | return w; |
3bbf5d34 CK |
3735 | |
3736 | request_failed: | |
3737 | if (ret != -EPROBE_DEFER) | |
3738 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", | |
3739 | w->name, ret); | |
3740 | ||
45004d66 WW |
3741 | kfree_const(w->sname); |
3742 | kfree(w); | |
3bbf5d34 | 3743 | return ERR_PTR(ret); |
2b97eabc | 3744 | } |
2b97eabc | 3745 | |
94e630a3 CK |
3746 | /** |
3747 | * snd_soc_dapm_new_control - create new dapm control | |
3748 | * @dapm: DAPM context | |
3749 | * @widget: widget template | |
3750 | * | |
3751 | * Creates new DAPM control based upon a template. | |
3752 | * | |
3753 | * Returns a widget pointer on success or an error pointer on failure | |
3754 | */ | |
3755 | struct snd_soc_dapm_widget * | |
3756 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3757 | const struct snd_soc_dapm_widget *widget) | |
3758 | { | |
3759 | struct snd_soc_dapm_widget *w; | |
3760 | ||
3761 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
3762 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); | |
3763 | mutex_unlock(&dapm->card->dapm_mutex); | |
3764 | ||
3765 | return w; | |
3766 | } | |
3767 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
3768 | ||
4ba1327a MB |
3769 | /** |
3770 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3771 | * @dapm: DAPM context |
4ba1327a MB |
3772 | * @widget: widget array |
3773 | * @num: number of widgets | |
3774 | * | |
3775 | * Creates new DAPM controls based upon the templates. | |
3776 | * | |
3777 | * Returns 0 for success else error. | |
3778 | */ | |
ce6120cc | 3779 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3780 | const struct snd_soc_dapm_widget *widget, |
3781 | int num) | |
3782 | { | |
5ba06fc9 MB |
3783 | struct snd_soc_dapm_widget *w; |
3784 | int i; | |
60884c27 | 3785 | int ret = 0; |
4ba1327a | 3786 | |
a73fb2df | 3787 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3788 | for (i = 0; i < num; i++) { |
02aa78ab | 3789 | w = snd_soc_dapm_new_control_unlocked(dapm, widget); |
37e1df8c LW |
3790 | if (IS_ERR(w)) { |
3791 | ret = PTR_ERR(w); | |
60884c27 | 3792 | break; |
b8b33cb5 | 3793 | } |
4ba1327a MB |
3794 | widget++; |
3795 | } | |
a73fb2df | 3796 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3797 | return ret; |
4ba1327a MB |
3798 | } |
3799 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3800 | ||
3dcfb397 JB |
3801 | static int |
3802 | snd_soc_dai_link_event_pre_pmu(struct snd_soc_dapm_widget *w, | |
3803 | struct snd_pcm_substream *substream) | |
c74184ed | 3804 | { |
4a75aae1 | 3805 | struct snd_soc_dapm_path *path; |
c74184ed | 3806 | struct snd_soc_dai *source, *sink; |
3dcfb397 | 3807 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
9747cec2 | 3808 | struct snd_pcm_hw_params *params = NULL; |
3dcfb397 | 3809 | const struct snd_soc_pcm_stream *config = NULL; |
a72706ed | 3810 | struct snd_pcm_runtime *runtime = NULL; |
3ba66feb | 3811 | unsigned int fmt; |
c8415833 | 3812 | int ret = 0; |
c74184ed | 3813 | |
3dcfb397 JB |
3814 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3815 | if (!params) | |
3816 | return -ENOMEM; | |
243bcfaf | 3817 | |
a72706ed JB |
3818 | runtime = kzalloc(sizeof(*runtime), GFP_KERNEL); |
3819 | if (!runtime) { | |
3820 | ret = -ENOMEM; | |
3821 | goto out; | |
3822 | } | |
3823 | ||
3824 | substream->runtime = runtime; | |
3825 | ||
3dcfb397 JB |
3826 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
3827 | snd_soc_dapm_widget_for_each_source_path(w, path) { | |
3828 | source = path->source->priv; | |
3829 | ||
3830 | ret = snd_soc_dai_startup(source, substream); | |
3831 | if (ret < 0) { | |
3832 | dev_err(source->dev, | |
3833 | "ASoC: startup() failed: %d\n", ret); | |
3834 | goto out; | |
3835 | } | |
45eb8666 | 3836 | snd_soc_dai_activate(source, substream->stream); |
3dcfb397 JB |
3837 | } |
3838 | ||
3839 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3840 | snd_soc_dapm_widget_for_each_sink_path(w, path) { | |
3841 | sink = path->sink->priv; | |
3842 | ||
3843 | ret = snd_soc_dai_startup(sink, substream); | |
3844 | if (ret < 0) { | |
3845 | dev_err(sink->dev, | |
3846 | "ASoC: startup() failed: %d\n", ret); | |
3847 | goto out; | |
3848 | } | |
45eb8666 | 3849 | snd_soc_dai_activate(sink, substream->stream); |
3dcfb397 JB |
3850 | } |
3851 | ||
a72706ed JB |
3852 | substream->hw_opened = 1; |
3853 | ||
3dcfb397 JB |
3854 | /* |
3855 | * Note: getting the config after .startup() gives a chance to | |
3856 | * either party on the link to alter the configuration if | |
3857 | * necessary | |
3858 | */ | |
3859 | config = rtd->dai_link->params + rtd->params_select; | |
3860 | if (WARN_ON(!config)) { | |
3861 | dev_err(w->dapm->dev, "ASoC: link config missing\n"); | |
3862 | ret = -EINVAL; | |
3863 | goto out; | |
3864 | } | |
c74184ed | 3865 | |
c74184ed MB |
3866 | /* Be a little careful as we don't want to overflow the mask array */ |
3867 | if (config->formats) { | |
3868 | fmt = ffs(config->formats) - 1; | |
3869 | } else { | |
30a6a1a4 | 3870 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed | 3871 | config->formats); |
c74184ed | 3872 | |
3dcfb397 | 3873 | ret = -EINVAL; |
9747cec2 MB |
3874 | goto out; |
3875 | } | |
c74184ed | 3876 | |
3dcfb397 | 3877 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); |
9747cec2 | 3878 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3879 | config->rate_min; |
9747cec2 | 3880 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed | 3881 | config->rate_max; |
9747cec2 | 3882 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3883 | = config->channels_min; |
9747cec2 | 3884 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3885 | = config->channels_max; |
3886 | ||
3dcfb397 JB |
3887 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
3888 | snd_soc_dapm_widget_for_each_source_path(w, path) { | |
3889 | source = path->source->priv; | |
3890 | ||
3891 | ret = snd_soc_dai_hw_params(source, substream, params); | |
3892 | if (ret < 0) | |
3893 | goto out; | |
3894 | ||
3895 | dapm_update_dai_unlocked(substream, params, source); | |
3896 | } | |
3897 | ||
3898 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; | |
3899 | snd_soc_dapm_widget_for_each_sink_path(w, path) { | |
3900 | sink = path->sink->priv; | |
3901 | ||
3902 | ret = snd_soc_dai_hw_params(sink, substream, params); | |
3903 | if (ret < 0) | |
3904 | goto out; | |
3905 | ||
3906 | dapm_update_dai_unlocked(substream, params, sink); | |
3907 | } | |
3908 | ||
9de98628 JB |
3909 | runtime->format = params_format(params); |
3910 | runtime->subformat = params_subformat(params); | |
3911 | runtime->channels = params_channels(params); | |
3912 | runtime->rate = params_rate(params); | |
3913 | ||
3dcfb397 JB |
3914 | out: |
3915 | kfree(params); | |
c8415833 | 3916 | return ret; |
3dcfb397 JB |
3917 | } |
3918 | ||
3919 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, | |
3920 | struct snd_kcontrol *kcontrol, int event) | |
3921 | { | |
3922 | struct snd_soc_dapm_path *path; | |
3923 | struct snd_soc_dai *source, *sink; | |
a72706ed JB |
3924 | struct snd_pcm_substream *substream = w->priv; |
3925 | int ret = 0, saved_stream = substream->stream; | |
3dcfb397 JB |
3926 | |
3927 | if (WARN_ON(list_empty(&w->edges[SND_SOC_DAPM_DIR_OUT]) || | |
3928 | list_empty(&w->edges[SND_SOC_DAPM_DIR_IN]))) | |
3929 | return -EINVAL; | |
3930 | ||
c74184ed MB |
3931 | switch (event) { |
3932 | case SND_SOC_DAPM_PRE_PMU: | |
a72706ed | 3933 | ret = snd_soc_dai_link_event_pre_pmu(w, substream); |
3dcfb397 JB |
3934 | if (ret < 0) |
3935 | goto out; | |
078a85f2 | 3936 | |
c74184ed MB |
3937 | break; |
3938 | ||
3939 | case SND_SOC_DAPM_POST_PMU: | |
4a75aae1 CK |
3940 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3941 | sink = path->sink->priv; | |
3942 | ||
3943 | ret = snd_soc_dai_digital_mute(sink, 0, | |
3944 | SNDRV_PCM_STREAM_PLAYBACK); | |
3945 | if (ret != 0 && ret != -ENOTSUPP) | |
3946 | dev_warn(sink->dev, | |
3947 | "ASoC: Failed to unmute: %d\n", ret); | |
3948 | ret = 0; | |
3949 | } | |
c74184ed MB |
3950 | break; |
3951 | ||
3952 | case SND_SOC_DAPM_PRE_PMD: | |
4a75aae1 CK |
3953 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3954 | sink = path->sink->priv; | |
3955 | ||
3956 | ret = snd_soc_dai_digital_mute(sink, 1, | |
3957 | SNDRV_PCM_STREAM_PLAYBACK); | |
3958 | if (ret != 0 && ret != -ENOTSUPP) | |
3959 | dev_warn(sink->dev, | |
3960 | "ASoC: Failed to mute: %d\n", ret); | |
3961 | ret = 0; | |
3962 | } | |
3963 | ||
a72706ed | 3964 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
4a75aae1 CK |
3965 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
3966 | source = path->source->priv; | |
a72706ed | 3967 | snd_soc_dai_hw_free(source, substream); |
68c907f1 JB |
3968 | } |
3969 | ||
a72706ed | 3970 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; |
68c907f1 JB |
3971 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3972 | sink = path->sink->priv; | |
a72706ed | 3973 | snd_soc_dai_hw_free(sink, substream); |
68c907f1 | 3974 | } |
3c01b0e1 | 3975 | |
a72706ed | 3976 | substream->stream = SNDRV_PCM_STREAM_CAPTURE; |
68c907f1 JB |
3977 | snd_soc_dapm_widget_for_each_source_path(w, path) { |
3978 | source = path->source->priv; | |
45eb8666 | 3979 | snd_soc_dai_deactivate(source, substream->stream); |
a72706ed | 3980 | snd_soc_dai_shutdown(source, substream); |
9b8ef9f6 JK |
3981 | } |
3982 | ||
a72706ed | 3983 | substream->stream = SNDRV_PCM_STREAM_PLAYBACK; |
4a75aae1 CK |
3984 | snd_soc_dapm_widget_for_each_sink_path(w, path) { |
3985 | sink = path->sink->priv; | |
45eb8666 | 3986 | snd_soc_dai_deactivate(sink, substream->stream); |
a72706ed | 3987 | snd_soc_dai_shutdown(sink, substream); |
9b8ef9f6 | 3988 | } |
c74184ed MB |
3989 | break; |
3990 | ||
a72706ed JB |
3991 | case SND_SOC_DAPM_POST_PMD: |
3992 | kfree(substream->runtime); | |
3993 | break; | |
3994 | ||
c74184ed | 3995 | default: |
a6ed0608 | 3996 | WARN(1, "Unknown event %d\n", event); |
75881df3 | 3997 | ret = -EINVAL; |
c74184ed MB |
3998 | } |
3999 | ||
9747cec2 | 4000 | out: |
a72706ed JB |
4001 | /* Restore the substream direction */ |
4002 | substream->stream = saved_stream; | |
9747cec2 | 4003 | return ret; |
c74184ed MB |
4004 | } |
4005 | ||
c6615082 NO |
4006 | static int snd_soc_dapm_dai_link_get(struct snd_kcontrol *kcontrol, |
4007 | struct snd_ctl_elem_value *ucontrol) | |
4008 | { | |
4009 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
243bcfaf | 4010 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 | 4011 | |
243bcfaf | 4012 | ucontrol->value.enumerated.item[0] = rtd->params_select; |
c6615082 NO |
4013 | |
4014 | return 0; | |
4015 | } | |
4016 | ||
4017 | static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol, | |
4018 | struct snd_ctl_elem_value *ucontrol) | |
4019 | { | |
4020 | struct snd_soc_dapm_widget *w = snd_kcontrol_chip(kcontrol); | |
243bcfaf | 4021 | struct snd_soc_pcm_runtime *rtd = w->priv; |
c6615082 NO |
4022 | |
4023 | /* Can't change the config when widget is already powered */ | |
4024 | if (w->power) | |
4025 | return -EBUSY; | |
4026 | ||
243bcfaf | 4027 | if (ucontrol->value.enumerated.item[0] == rtd->params_select) |
c6615082 NO |
4028 | return 0; |
4029 | ||
243bcfaf | 4030 | if (ucontrol->value.enumerated.item[0] >= rtd->dai_link->num_params) |
c6615082 NO |
4031 | return -EINVAL; |
4032 | ||
243bcfaf | 4033 | rtd->params_select = ucontrol->value.enumerated.item[0]; |
c6615082 NO |
4034 | |
4035 | return 0; | |
4036 | } | |
4037 | ||
c42c5ac4 | 4038 | static void |
19ad683a | 4039 | snd_soc_dapm_free_kcontrol(struct snd_soc_card *card, |
4040 | unsigned long *private_value, | |
4041 | int num_params, | |
4042 | const char **w_param_text) | |
4043 | { | |
4044 | int count; | |
4045 | ||
4046 | devm_kfree(card->dev, (void *)*private_value); | |
cacea3a9 PB |
4047 | |
4048 | if (!w_param_text) | |
4049 | return; | |
4050 | ||
19ad683a | 4051 | for (count = 0 ; count < num_params; count++) |
4052 | devm_kfree(card->dev, (void *)w_param_text[count]); | |
4053 | devm_kfree(card->dev, w_param_text); | |
4054 | } | |
4055 | ||
4056 | static struct snd_kcontrol_new * | |
4057 | snd_soc_dapm_alloc_kcontrol(struct snd_soc_card *card, | |
4058 | char *link_name, | |
4059 | const struct snd_soc_pcm_stream *params, | |
4060 | int num_params, const char **w_param_text, | |
4061 | unsigned long *private_value) | |
c74184ed | 4062 | { |
c6615082 NO |
4063 | struct soc_enum w_param_enum[] = { |
4064 | SOC_ENUM_SINGLE(0, 0, 0, NULL), | |
4065 | }; | |
4066 | struct snd_kcontrol_new kcontrol_dai_link[] = { | |
4067 | SOC_ENUM_EXT(NULL, w_param_enum[0], | |
4068 | snd_soc_dapm_dai_link_get, | |
4069 | snd_soc_dapm_dai_link_put), | |
4070 | }; | |
19ad683a | 4071 | struct snd_kcontrol_new *kcontrol_news; |
c6615082 | 4072 | const struct snd_soc_pcm_stream *config = params; |
19ad683a | 4073 | int count; |
c74184ed | 4074 | |
c6615082 NO |
4075 | for (count = 0 ; count < num_params; count++) { |
4076 | if (!config->stream_name) { | |
4077 | dev_warn(card->dapm.dev, | |
4078 | "ASoC: anonymous config %d for dai link %s\n", | |
4079 | count, link_name); | |
c6615082 | 4080 | w_param_text[count] = |
46172b6c CK |
4081 | devm_kasprintf(card->dev, GFP_KERNEL, |
4082 | "Anonymous Configuration %d", | |
4083 | count); | |
c6615082 NO |
4084 | } else { |
4085 | w_param_text[count] = devm_kmemdup(card->dev, | |
4086 | config->stream_name, | |
4087 | strlen(config->stream_name) + 1, | |
4088 | GFP_KERNEL); | |
c6615082 | 4089 | } |
19ad683a | 4090 | if (!w_param_text[count]) |
4091 | goto outfree_w_param; | |
c6615082 NO |
4092 | config++; |
4093 | } | |
19ad683a | 4094 | |
c6615082 NO |
4095 | w_param_enum[0].items = num_params; |
4096 | w_param_enum[0].texts = w_param_text; | |
c74184ed | 4097 | |
19ad683a | 4098 | *private_value = |
c6615082 NO |
4099 | (unsigned long) devm_kmemdup(card->dev, |
4100 | (void *)(kcontrol_dai_link[0].private_value), | |
4101 | sizeof(struct soc_enum), GFP_KERNEL); | |
19ad683a | 4102 | if (!*private_value) { |
c6615082 NO |
4103 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", |
4104 | link_name); | |
19ad683a | 4105 | goto outfree_w_param; |
c6615082 | 4106 | } |
19ad683a | 4107 | kcontrol_dai_link[0].private_value = *private_value; |
c6615082 | 4108 | /* duplicate kcontrol_dai_link on heap so that memory persists */ |
19ad683a | 4109 | kcontrol_news = devm_kmemdup(card->dev, &kcontrol_dai_link[0], |
c6615082 NO |
4110 | sizeof(struct snd_kcontrol_new), |
4111 | GFP_KERNEL); | |
19ad683a | 4112 | if (!kcontrol_news) { |
c6615082 NO |
4113 | dev_err(card->dev, "ASoC: Failed to create control for %s widget\n", |
4114 | link_name); | |
19ad683a | 4115 | goto outfree_w_param; |
c6615082 | 4116 | } |
19ad683a | 4117 | return kcontrol_news; |
c74184ed | 4118 | |
19ad683a | 4119 | outfree_w_param: |
4120 | snd_soc_dapm_free_kcontrol(card, private_value, num_params, w_param_text); | |
4121 | return NULL; | |
4122 | } | |
4123 | ||
778ff5bb | 4124 | static struct snd_soc_dapm_widget * |
a72706ed JB |
4125 | snd_soc_dapm_new_dai(struct snd_soc_card *card, |
4126 | struct snd_pcm_substream *substream, | |
054d6500 | 4127 | char *id) |
19ad683a | 4128 | { |
a72706ed | 4129 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
19ad683a | 4130 | struct snd_soc_dapm_widget template; |
4131 | struct snd_soc_dapm_widget *w; | |
4132 | const char **w_param_text; | |
8633d440 | 4133 | unsigned long private_value = 0; |
19ad683a | 4134 | char *link_name; |
4135 | int ret; | |
4136 | ||
4137 | link_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s-%s", | |
054d6500 | 4138 | rtd->dai_link->name, id); |
19ad683a | 4139 | if (!link_name) |
778ff5bb | 4140 | return ERR_PTR(-ENOMEM); |
19ad683a | 4141 | |
4142 | memset(&template, 0, sizeof(template)); | |
4143 | template.reg = SND_SOC_NOPM; | |
4144 | template.id = snd_soc_dapm_dai_link; | |
4145 | template.name = link_name; | |
4146 | template.event = snd_soc_dai_link_event; | |
4147 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
a72706ed | 4148 | SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD; |
19ad683a | 4149 | template.kcontrol_news = NULL; |
4150 | ||
4151 | /* allocate memory for control, only in case of multiple configs */ | |
778ff5bb CK |
4152 | if (rtd->dai_link->num_params > 1) { |
4153 | w_param_text = devm_kcalloc(card->dev, | |
4154 | rtd->dai_link->num_params, | |
4155 | sizeof(char *), GFP_KERNEL); | |
19ad683a | 4156 | if (!w_param_text) { |
4157 | ret = -ENOMEM; | |
4158 | goto param_fail; | |
4159 | } | |
c74184ed | 4160 | |
19ad683a | 4161 | template.num_kcontrols = 1; |
4162 | template.kcontrol_news = | |
4163 | snd_soc_dapm_alloc_kcontrol(card, | |
778ff5bb CK |
4164 | link_name, |
4165 | rtd->dai_link->params, | |
4166 | rtd->dai_link->num_params, | |
19ad683a | 4167 | w_param_text, &private_value); |
4168 | if (!template.kcontrol_news) { | |
4169 | ret = -ENOMEM; | |
4170 | goto param_fail; | |
4171 | } | |
667ebc97 AB |
4172 | } else { |
4173 | w_param_text = NULL; | |
19ad683a | 4174 | } |
30a6a1a4 | 4175 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed | 4176 | |
02aa78ab | 4177 | w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template); |
2e558a81 DC |
4178 | if (IS_ERR(w)) { |
4179 | ret = PTR_ERR(w); | |
9a1bb600 CK |
4180 | dev_err(rtd->dev, "ASoC: Failed to create %s widget: %d\n", |
4181 | link_name, ret); | |
c6615082 | 4182 | goto outfree_kcontrol_news; |
2e558a81 | 4183 | } |
c74184ed | 4184 | |
a72706ed | 4185 | w->priv = substream; |
c74184ed | 4186 | |
778ff5bb | 4187 | return w; |
c6615082 | 4188 | |
c6615082 NO |
4189 | outfree_kcontrol_news: |
4190 | devm_kfree(card->dev, (void *)template.kcontrol_news); | |
778ff5bb CK |
4191 | snd_soc_dapm_free_kcontrol(card, &private_value, |
4192 | rtd->dai_link->num_params, w_param_text); | |
19ad683a | 4193 | param_fail: |
c6615082 | 4194 | devm_kfree(card->dev, link_name); |
778ff5bb | 4195 | return ERR_PTR(ret); |
c74184ed MB |
4196 | } |
4197 | ||
888df395 MB |
4198 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
4199 | struct snd_soc_dai *dai) | |
2b97eabc | 4200 | { |
888df395 | 4201 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
4202 | struct snd_soc_dapm_widget *w; |
4203 | ||
888df395 MB |
4204 | WARN_ON(dapm->dev != dai->dev); |
4205 | ||
4206 | memset(&template, 0, sizeof(template)); | |
4207 | template.reg = SND_SOC_NOPM; | |
4208 | ||
4209 | if (dai->driver->playback.stream_name) { | |
4616274d | 4210 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
4211 | template.name = dai->driver->playback.stream_name; |
4212 | template.sname = dai->driver->playback.stream_name; | |
4213 | ||
30a6a1a4 | 4214 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
4215 | template.name); |
4216 | ||
02aa78ab | 4217 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
3bbf5d34 CK |
4218 | if (IS_ERR(w)) |
4219 | return PTR_ERR(w); | |
888df395 MB |
4220 | |
4221 | w->priv = dai; | |
4222 | dai->playback_widget = w; | |
4223 | } | |
4224 | ||
4225 | if (dai->driver->capture.stream_name) { | |
4616274d | 4226 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
4227 | template.name = dai->driver->capture.stream_name; |
4228 | template.sname = dai->driver->capture.stream_name; | |
4229 | ||
30a6a1a4 | 4230 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
4231 | template.name); |
4232 | ||
02aa78ab | 4233 | w = snd_soc_dapm_new_control_unlocked(dapm, &template); |
3bbf5d34 CK |
4234 | if (IS_ERR(w)) |
4235 | return PTR_ERR(w); | |
888df395 MB |
4236 | |
4237 | w->priv = dai; | |
4238 | dai->capture_widget = w; | |
4239 | } | |
4240 | ||
4241 | return 0; | |
4242 | } | |
4243 | ||
4244 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
4245 | { | |
4246 | struct snd_soc_dapm_widget *dai_w, *w; | |
0f9bd7b1 | 4247 | struct snd_soc_dapm_widget *src, *sink; |
888df395 | 4248 | struct snd_soc_dai *dai; |
888df395 MB |
4249 | |
4250 | /* For each DAI widget... */ | |
14596692 | 4251 | for_each_card_widgets(card, dai_w) { |
4616274d MB |
4252 | switch (dai_w->id) { |
4253 | case snd_soc_dapm_dai_in: | |
4254 | case snd_soc_dapm_dai_out: | |
4255 | break; | |
4256 | default: | |
2b97eabc | 4257 | continue; |
4616274d | 4258 | } |
888df395 | 4259 | |
e01b4f62 LG |
4260 | /* let users know there is no DAI to link */ |
4261 | if (!dai_w->priv) { | |
4262 | dev_dbg(card->dev, "dai widget %s has no DAI\n", | |
4263 | dai_w->name); | |
4264 | continue; | |
4265 | } | |
4266 | ||
888df395 MB |
4267 | dai = dai_w->priv; |
4268 | ||
4269 | /* ...find all widgets with the same stream and link them */ | |
14596692 | 4270 | for_each_card_widgets(card, w) { |
888df395 MB |
4271 | if (w->dapm != dai_w->dapm) |
4272 | continue; | |
4273 | ||
4616274d MB |
4274 | switch (w->id) { |
4275 | case snd_soc_dapm_dai_in: | |
4276 | case snd_soc_dapm_dai_out: | |
888df395 | 4277 | continue; |
4616274d MB |
4278 | default: |
4279 | break; | |
4280 | } | |
888df395 | 4281 | |
a798c24a | 4282 | if (!w->sname || !strstr(w->sname, dai_w->sname)) |
888df395 MB |
4283 | continue; |
4284 | ||
0f9bd7b1 LPC |
4285 | if (dai_w->id == snd_soc_dapm_dai_in) { |
4286 | src = dai_w; | |
4287 | sink = w; | |
4288 | } else { | |
4289 | src = w; | |
4290 | sink = dai_w; | |
2b97eabc | 4291 | } |
0f9bd7b1 LPC |
4292 | dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); |
4293 | snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); | |
2b97eabc RP |
4294 | } |
4295 | } | |
2b97eabc | 4296 | |
888df395 MB |
4297 | return 0; |
4298 | } | |
64a648c2 | 4299 | |
595571cc CK |
4300 | static void dapm_connect_dai_routes(struct snd_soc_dapm_context *dapm, |
4301 | struct snd_soc_dai *src_dai, | |
4302 | struct snd_soc_dapm_widget *src, | |
4303 | struct snd_soc_dapm_widget *dai, | |
4304 | struct snd_soc_dai *sink_dai, | |
4305 | struct snd_soc_dapm_widget *sink) | |
b893ea5f | 4306 | { |
595571cc CK |
4307 | dev_dbg(dapm->dev, "connected DAI link %s:%s -> %s:%s\n", |
4308 | src_dai->component->name, src->name, | |
4309 | sink_dai->component->name, sink->name); | |
4310 | ||
4311 | if (dai) { | |
4312 | snd_soc_dapm_add_path(dapm, src, dai, NULL, NULL); | |
4313 | src = dai; | |
4314 | } | |
4315 | ||
4316 | snd_soc_dapm_add_path(dapm, src, sink, NULL, NULL); | |
4317 | } | |
4318 | ||
4319 | static void dapm_connect_dai_pair(struct snd_soc_card *card, | |
4320 | struct snd_soc_pcm_runtime *rtd, | |
4321 | struct snd_soc_dai *codec_dai, | |
4322 | struct snd_soc_dai *cpu_dai) | |
4323 | { | |
4324 | struct snd_soc_dai_link *dai_link = rtd->dai_link; | |
4325 | struct snd_soc_dapm_widget *dai, *codec, *playback_cpu, *capture_cpu; | |
a72706ed JB |
4326 | struct snd_pcm_substream *substream; |
4327 | struct snd_pcm_str *streams = rtd->pcm->streams; | |
b893ea5f | 4328 | |
595571cc | 4329 | if (dai_link->params) { |
778ff5bb CK |
4330 | playback_cpu = cpu_dai->capture_widget; |
4331 | capture_cpu = cpu_dai->playback_widget; | |
4332 | } else { | |
595571cc CK |
4333 | playback_cpu = cpu_dai->playback_widget; |
4334 | capture_cpu = cpu_dai->capture_widget; | |
778ff5bb CK |
4335 | } |
4336 | ||
6c4b13b5 SN |
4337 | /* connect BE DAI playback if widgets are valid */ |
4338 | codec = codec_dai->playback_widget; | |
4339 | ||
4340 | if (playback_cpu && codec) { | |
595571cc | 4341 | if (dai_link->params && !dai_link->playback_widget) { |
6c4b13b5 | 4342 | substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream; |
595571cc | 4343 | dai = snd_soc_dapm_new_dai(card, substream, "playback"); |
9a1bb600 | 4344 | if (IS_ERR(dai)) |
6c4b13b5 | 4345 | goto capture; |
595571cc | 4346 | dai_link->playback_widget = dai; |
b893ea5f LG |
4347 | } |
4348 | ||
595571cc CK |
4349 | dapm_connect_dai_routes(&card->dapm, cpu_dai, playback_cpu, |
4350 | dai_link->playback_widget, | |
4351 | codec_dai, codec); | |
6c4b13b5 SN |
4352 | } |
4353 | ||
4354 | capture: | |
4355 | /* connect BE DAI capture if widgets are valid */ | |
4356 | codec = codec_dai->capture_widget; | |
4357 | ||
4358 | if (codec && capture_cpu) { | |
595571cc | 4359 | if (dai_link->params && !dai_link->capture_widget) { |
6c4b13b5 | 4360 | substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream; |
595571cc | 4361 | dai = snd_soc_dapm_new_dai(card, substream, "capture"); |
9a1bb600 | 4362 | if (IS_ERR(dai)) |
6c4b13b5 | 4363 | return; |
595571cc | 4364 | dai_link->capture_widget = dai; |
b893ea5f | 4365 | } |
6c4b13b5 | 4366 | |
595571cc CK |
4367 | dapm_connect_dai_routes(&card->dapm, codec_dai, codec, |
4368 | dai_link->capture_widget, | |
4369 | cpu_dai, capture_cpu); | |
b893ea5f LG |
4370 | } |
4371 | } | |
4372 | ||
c471fdd1 | 4373 | static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, |
d9b0951b | 4374 | int event) |
2b97eabc | 4375 | { |
c471fdd1 | 4376 | struct snd_soc_dapm_widget *w; |
a3423b02 | 4377 | unsigned int ep; |
7bd3a6f3 | 4378 | |
0c01f6ca | 4379 | w = snd_soc_dai_get_widget(dai, stream); |
fe360685 | 4380 | |
c471fdd1 LPC |
4381 | if (w) { |
4382 | dapm_mark_dirty(w, "stream event"); | |
d9b0951b | 4383 | |
a3423b02 LPC |
4384 | if (w->id == snd_soc_dapm_dai_in) { |
4385 | ep = SND_SOC_DAPM_EP_SOURCE; | |
4386 | dapm_widget_invalidate_input_paths(w); | |
4387 | } else { | |
4388 | ep = SND_SOC_DAPM_EP_SINK; | |
4389 | dapm_widget_invalidate_output_paths(w); | |
4390 | } | |
4391 | ||
d9b0951b LG |
4392 | switch (event) { |
4393 | case SND_SOC_DAPM_STREAM_START: | |
c471fdd1 | 4394 | w->active = 1; |
a3423b02 | 4395 | w->is_ep = ep; |
d9b0951b LG |
4396 | break; |
4397 | case SND_SOC_DAPM_STREAM_STOP: | |
c471fdd1 | 4398 | w->active = 0; |
a3423b02 | 4399 | w->is_ep = 0; |
d9b0951b LG |
4400 | break; |
4401 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
4402 | case SND_SOC_DAPM_STREAM_RESUME: | |
4403 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
4404 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
4405 | break; | |
4406 | } | |
4407 | } | |
c471fdd1 | 4408 | } |
d9b0951b | 4409 | |
44ba2641 BC |
4410 | void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) |
4411 | { | |
1a497983 | 4412 | struct snd_soc_pcm_runtime *rtd; |
0eaef95e CK |
4413 | struct snd_soc_dai *codec_dai; |
4414 | int i; | |
44ba2641 BC |
4415 | |
4416 | /* for each BE DAI link... */ | |
bcb1fd1f | 4417 | for_each_card_rtds(card, rtd) { |
44ba2641 BC |
4418 | /* |
4419 | * dynamic FE links have no fixed DAI mapping. | |
4420 | * CODEC<->CODEC links have no direct connection. | |
4421 | */ | |
778ff5bb | 4422 | if (rtd->dai_link->dynamic) |
44ba2641 BC |
4423 | continue; |
4424 | ||
0eaef95e CK |
4425 | if (rtd->num_cpus == 1) { |
4426 | for_each_rtd_codec_dais(rtd, i, codec_dai) | |
4427 | dapm_connect_dai_pair(card, rtd, codec_dai, | |
39400f34 | 4428 | asoc_rtd_to_cpu(rtd, 0)); |
0eaef95e CK |
4429 | } else if (rtd->num_codecs == rtd->num_cpus) { |
4430 | for_each_rtd_codec_dais(rtd, i, codec_dai) | |
4431 | dapm_connect_dai_pair(card, rtd, codec_dai, | |
39400f34 | 4432 | asoc_rtd_to_cpu(rtd, i)); |
0eaef95e CK |
4433 | } else { |
4434 | dev_err(card->dev, | |
4435 | "N cpus to M codecs link is not supported yet\n"); | |
4436 | } | |
44ba2641 BC |
4437 | } |
4438 | } | |
4439 | ||
c471fdd1 LPC |
4440 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4441 | int event) | |
4442 | { | |
e3c3cf71 | 4443 | struct snd_soc_dai *dai; |
44ba2641 BC |
4444 | int i; |
4445 | ||
e3c3cf71 KM |
4446 | for_each_rtd_dais(rtd, i, dai) |
4447 | soc_dapm_dai_stream_event(dai, stream, event); | |
2b97eabc | 4448 | |
95dd5cd6 | 4449 | dapm_power_widgets(rtd->card, event); |
ce6120cc LG |
4450 | } |
4451 | ||
4452 | /** | |
4453 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
4454 | * @rtd: PCM runtime data | |
4455 | * @stream: stream name | |
4456 | * @event: stream event | |
4457 | * | |
4458 | * Sends a stream event to the dapm core. The core then makes any | |
4459 | * necessary widget power changes. | |
4460 | * | |
4461 | * Returns 0 for success else error. | |
4462 | */ | |
d9b0951b LG |
4463 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
4464 | int event) | |
ce6120cc | 4465 | { |
a73fb2df | 4466 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 4467 | |
3cd04343 | 4468 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 4469 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 4470 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 4471 | } |
2b97eabc | 4472 | |
3f4cf797 KM |
4473 | void snd_soc_dapm_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream) |
4474 | { | |
4475 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
4476 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { | |
4477 | /* powered down playback stream now */ | |
4478 | snd_soc_dapm_stream_event(rtd, | |
4479 | SNDRV_PCM_STREAM_PLAYBACK, | |
4480 | SND_SOC_DAPM_STREAM_STOP); | |
4481 | } else { | |
4482 | /* start delayed pop wq here for playback streams */ | |
4483 | rtd->pop_wait = 1; | |
4484 | queue_delayed_work(system_power_efficient_wq, | |
4485 | &rtd->delayed_work, | |
4486 | msecs_to_jiffies(rtd->pmdown_time)); | |
4487 | } | |
4488 | } else { | |
4489 | /* capture streams can be powered down now */ | |
4490 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
4491 | SND_SOC_DAPM_STREAM_STOP); | |
4492 | } | |
4493 | } | |
4494 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_stop); | |
4495 | ||
11391100 CK |
4496 | /** |
4497 | * snd_soc_dapm_enable_pin_unlocked - enable pin. | |
4498 | * @dapm: DAPM context | |
4499 | * @pin: pin name | |
4500 | * | |
4501 | * Enables input/output pin and its parents or children widgets iff there is | |
4502 | * a valid audio route and active audio stream. | |
4503 | * | |
4504 | * Requires external locking. | |
4505 | * | |
4506 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4507 | * do any widget power switching. | |
4508 | */ | |
4509 | int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4510 | const char *pin) | |
4511 | { | |
4512 | return snd_soc_dapm_set_pin(dapm, pin, 1); | |
4513 | } | |
4514 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); | |
4515 | ||
2b97eabc | 4516 | /** |
a5302181 | 4517 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 4518 | * @dapm: DAPM context |
a5302181 | 4519 | * @pin: pin name |
2b97eabc | 4520 | * |
74b8f955 | 4521 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 | 4522 | * a valid audio route and active audio stream. |
11391100 | 4523 | * |
a5302181 LG |
4524 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4525 | * do any widget power switching. | |
2b97eabc | 4526 | */ |
ce6120cc | 4527 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 4528 | { |
11391100 CK |
4529 | int ret; |
4530 | ||
4531 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4532 | ||
4533 | ret = snd_soc_dapm_set_pin(dapm, pin, 1); | |
4534 | ||
4535 | mutex_unlock(&dapm->card->dapm_mutex); | |
4536 | ||
4537 | return ret; | |
a5302181 LG |
4538 | } |
4539 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 4540 | |
da34183e | 4541 | /** |
11391100 | 4542 | * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled |
ce6120cc | 4543 | * @dapm: DAPM context |
da34183e MB |
4544 | * @pin: pin name |
4545 | * | |
4546 | * Enables input/output pin regardless of any other state. This is | |
4547 | * intended for use with microphone bias supplies used in microphone | |
4548 | * jack detection. | |
4549 | * | |
11391100 CK |
4550 | * Requires external locking. |
4551 | * | |
da34183e MB |
4552 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4553 | * do any widget power switching. | |
4554 | */ | |
11391100 CK |
4555 | int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, |
4556 | const char *pin) | |
da34183e | 4557 | { |
91a5fca4 | 4558 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 4559 | |
91a5fca4 | 4560 | if (!w) { |
30a6a1a4 | 4561 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4562 | return -EINVAL; |
0d86733c MB |
4563 | } |
4564 | ||
30a6a1a4 | 4565 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
92a99ea4 LPC |
4566 | if (!w->connected) { |
4567 | /* | |
4568 | * w->force does not affect the number of input or output paths, | |
4569 | * so we only have to recheck if w->connected is changed | |
4570 | */ | |
4571 | dapm_widget_invalidate_input_paths(w); | |
4572 | dapm_widget_invalidate_output_paths(w); | |
4573 | w->connected = 1; | |
4574 | } | |
91a5fca4 | 4575 | w->force = 1; |
75c1f891 | 4576 | dapm_mark_dirty(w, "force enable"); |
da34183e | 4577 | |
91a5fca4 | 4578 | return 0; |
da34183e | 4579 | } |
11391100 CK |
4580 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); |
4581 | ||
4582 | /** | |
4583 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
4584 | * @dapm: DAPM context | |
4585 | * @pin: pin name | |
4586 | * | |
4587 | * Enables input/output pin regardless of any other state. This is | |
4588 | * intended for use with microphone bias supplies used in microphone | |
4589 | * jack detection. | |
4590 | * | |
4591 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4592 | * do any widget power switching. | |
4593 | */ | |
4594 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, | |
4595 | const char *pin) | |
4596 | { | |
4597 | int ret; | |
4598 | ||
4599 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4600 | ||
4601 | ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); | |
4602 | ||
4603 | mutex_unlock(&dapm->card->dapm_mutex); | |
4604 | ||
4605 | return ret; | |
4606 | } | |
da34183e MB |
4607 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
4608 | ||
11391100 CK |
4609 | /** |
4610 | * snd_soc_dapm_disable_pin_unlocked - disable pin. | |
4611 | * @dapm: DAPM context | |
4612 | * @pin: pin name | |
4613 | * | |
4614 | * Disables input/output pin and its parents or children widgets. | |
4615 | * | |
4616 | * Requires external locking. | |
4617 | * | |
4618 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4619 | * do any widget power switching. | |
4620 | */ | |
4621 | int snd_soc_dapm_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4622 | const char *pin) | |
4623 | { | |
4624 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4625 | } | |
4626 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); | |
4627 | ||
a5302181 LG |
4628 | /** |
4629 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 4630 | * @dapm: DAPM context |
a5302181 LG |
4631 | * @pin: pin name |
4632 | * | |
74b8f955 | 4633 | * Disables input/output pin and its parents or children widgets. |
11391100 | 4634 | * |
a5302181 LG |
4635 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
4636 | * do any widget power switching. | |
4637 | */ | |
ce6120cc LG |
4638 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
4639 | const char *pin) | |
a5302181 | 4640 | { |
11391100 CK |
4641 | int ret; |
4642 | ||
4643 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4644 | ||
4645 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4646 | ||
4647 | mutex_unlock(&dapm->card->dapm_mutex); | |
4648 | ||
4649 | return ret; | |
2b97eabc | 4650 | } |
a5302181 | 4651 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 4652 | |
11391100 CK |
4653 | /** |
4654 | * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. | |
4655 | * @dapm: DAPM context | |
4656 | * @pin: pin name | |
4657 | * | |
4658 | * Marks the specified pin as being not connected, disabling it along | |
4659 | * any parent or child widgets. At present this is identical to | |
4660 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4661 | * additional things such as disabling controls which only affect | |
4662 | * paths through the pin. | |
4663 | * | |
4664 | * Requires external locking. | |
4665 | * | |
4666 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4667 | * do any widget power switching. | |
4668 | */ | |
4669 | int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, | |
4670 | const char *pin) | |
4671 | { | |
4672 | return snd_soc_dapm_set_pin(dapm, pin, 0); | |
4673 | } | |
4674 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); | |
4675 | ||
5817b52a MB |
4676 | /** |
4677 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 4678 | * @dapm: DAPM context |
5817b52a MB |
4679 | * @pin: pin name |
4680 | * | |
4681 | * Marks the specified pin as being not connected, disabling it along | |
4682 | * any parent or child widgets. At present this is identical to | |
4683 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
4684 | * additional things such as disabling controls which only affect | |
4685 | * paths through the pin. | |
4686 | * | |
4687 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
4688 | * do any widget power switching. | |
4689 | */ | |
ce6120cc | 4690 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 4691 | { |
11391100 CK |
4692 | int ret; |
4693 | ||
4694 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
4695 | ||
4696 | ret = snd_soc_dapm_set_pin(dapm, pin, 0); | |
4697 | ||
4698 | mutex_unlock(&dapm->card->dapm_mutex); | |
4699 | ||
4700 | return ret; | |
5817b52a MB |
4701 | } |
4702 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
4703 | ||
eeec12bf | 4704 | /** |
a5302181 | 4705 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 4706 | * @dapm: DAPM context |
a5302181 | 4707 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 4708 | * |
a5302181 | 4709 | * Get audio pin status - connected or disconnected. |
eeec12bf | 4710 | * |
a5302181 | 4711 | * Returns 1 for connected otherwise 0. |
eeec12bf | 4712 | */ |
ce6120cc LG |
4713 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
4714 | const char *pin) | |
eeec12bf | 4715 | { |
91a5fca4 | 4716 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 4717 | |
91a5fca4 LPC |
4718 | if (w) |
4719 | return w->connected; | |
a68b38ad | 4720 | |
eeec12bf GG |
4721 | return 0; |
4722 | } | |
a5302181 | 4723 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 4724 | |
1547aba9 MB |
4725 | /** |
4726 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 4727 | * @dapm: DAPM context |
1547aba9 MB |
4728 | * @pin: audio signal pin endpoint (or start point) |
4729 | * | |
4730 | * Mark the given endpoint or pin as ignoring suspend. When the | |
4731 | * system is disabled a path between two endpoints flagged as ignoring | |
4732 | * suspend will not be disabled. The path must already be enabled via | |
4733 | * normal means at suspend time, it will not be turned on if it was not | |
4734 | * already enabled. | |
4735 | */ | |
ce6120cc LG |
4736 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
4737 | const char *pin) | |
1547aba9 | 4738 | { |
91a5fca4 | 4739 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 4740 | |
91a5fca4 | 4741 | if (!w) { |
30a6a1a4 | 4742 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 4743 | return -EINVAL; |
1547aba9 MB |
4744 | } |
4745 | ||
91a5fca4 LPC |
4746 | w->ignore_suspend = 1; |
4747 | ||
4748 | return 0; | |
1547aba9 MB |
4749 | } |
4750 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
4751 | ||
2b97eabc RP |
4752 | /** |
4753 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 4754 | * @dapm: DAPM context |
2b97eabc RP |
4755 | * |
4756 | * Free all dapm widgets and resources. | |
4757 | */ | |
ce6120cc | 4758 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 4759 | { |
6c45e126 | 4760 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 4761 | dapm_free_widgets(dapm); |
7be31be8 | 4762 | list_del(&dapm->list); |
2b97eabc RP |
4763 | } |
4764 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
4765 | ||
95c267dd KM |
4766 | void snd_soc_dapm_init(struct snd_soc_dapm_context *dapm, |
4767 | struct snd_soc_card *card, | |
4768 | struct snd_soc_component *component) | |
4769 | { | |
4770 | dapm->card = card; | |
4771 | dapm->component = component; | |
4772 | dapm->bias_level = SND_SOC_BIAS_OFF; | |
4773 | ||
4774 | if (component) { | |
4775 | dapm->dev = component->dev; | |
4776 | dapm->idle_bias_off = !component->driver->idle_bias_on, | |
4777 | dapm->suspend_bias_off = component->driver->suspend_bias_off; | |
4778 | } else { | |
4779 | dapm->dev = card->dev; | |
4780 | } | |
4781 | ||
4782 | INIT_LIST_HEAD(&dapm->list); | |
df817f8e | 4783 | /* see for_each_card_dapms */ |
95c267dd KM |
4784 | list_add(&dapm->list, &card->dapm_list); |
4785 | } | |
4786 | EXPORT_SYMBOL_GPL(snd_soc_dapm_init); | |
4787 | ||
57996358 | 4788 | static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) |
51737470 | 4789 | { |
01005a72 | 4790 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
4791 | struct snd_soc_dapm_widget *w; |
4792 | LIST_HEAD(down_list); | |
4793 | int powerdown = 0; | |
4794 | ||
01005a72 LG |
4795 | mutex_lock(&card->dapm_mutex); |
4796 | ||
14596692 | 4797 | for_each_card_widgets(dapm->card, w) { |
97c866de JN |
4798 | if (w->dapm != dapm) |
4799 | continue; | |
51737470 | 4800 | if (w->power) { |
828a842f | 4801 | dapm_seq_insert(w, &down_list, false); |
9b319308 | 4802 | w->new_power = 0; |
51737470 MB |
4803 | powerdown = 1; |
4804 | } | |
4805 | } | |
4806 | ||
4807 | /* If there were no widgets to power down we're already in | |
4808 | * standby. | |
4809 | */ | |
4810 | if (powerdown) { | |
7679e42e MB |
4811 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
4812 | snd_soc_dapm_set_bias_level(dapm, | |
4813 | SND_SOC_BIAS_PREPARE); | |
95dd5cd6 | 4814 | dapm_seq_run(card, &down_list, 0, false); |
7679e42e MB |
4815 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
4816 | snd_soc_dapm_set_bias_level(dapm, | |
4817 | SND_SOC_BIAS_STANDBY); | |
51737470 | 4818 | } |
01005a72 LG |
4819 | |
4820 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
4821 | } |
4822 | ||
4823 | /* | |
4824 | * snd_soc_dapm_shutdown - callback for system shutdown | |
4825 | */ | |
4826 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
4827 | { | |
57996358 | 4828 | struct snd_soc_dapm_context *dapm; |
f0fba2ad | 4829 | |
df817f8e | 4830 | for_each_card_dapms(card, dapm) { |
17282ba4 XX |
4831 | if (dapm != &card->dapm) { |
4832 | soc_dapm_shutdown_dapm(dapm); | |
4833 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) | |
4834 | snd_soc_dapm_set_bias_level(dapm, | |
4835 | SND_SOC_BIAS_OFF); | |
4836 | } | |
ce6120cc | 4837 | } |
17282ba4 XX |
4838 | |
4839 | soc_dapm_shutdown_dapm(&card->dapm); | |
4840 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) | |
4841 | snd_soc_dapm_set_bias_level(&card->dapm, | |
4842 | SND_SOC_BIAS_OFF); | |
51737470 MB |
4843 | } |
4844 | ||
2b97eabc | 4845 | /* Module information */ |
d331124d | 4846 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
4847 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
4848 | MODULE_LICENSE("GPL"); |